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

Comparing jsr166/src/test/tck/CompletableFutureTest.java (file contents):
Revision 1.34 by jsr166, Sun Jun 1 21:17:05 2014 UTC vs.
Revision 1.201 by jsr166, Sat Sep 22 21:04:48 2018 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.Test;
45	+	import junit.framework.TestSuite;
46
47		public class CompletableFutureTest extends JSR166TestCase {
48
49		public static void main(String[] args) {
50	<	junit.textui.TestRunner.run(suite());
50	>	main(suite(), args);
51		}
52		public static Test suite() {
53		return new TestSuite(CompletableFutureTest.class);
#	Line 41 | Line 58 | public class CompletableFutureTest exten
58		void checkIncomplete(CompletableFuture<?> f) {
59		assertFalse(f.isDone());
60		assertFalse(f.isCancelled());
61	<	assertTrue(f.toString().contains("[Not completed]"));
61	>	assertTrue(f.toString().matches(".*\\[.*Not completed.*\\]"));
62	>
63	>	Object result = null;
64		try {
65	<	assertNull(f.getNow(null));
65	>	result = f.getNow(null);
66		} catch (Throwable fail) { threadUnexpectedException(fail); }
67	+	assertNull(result);
68	+
69		try {
70	<	f.get(0L, SECONDS);
70	>	f.get(randomExpiredTimeout(), randomTimeUnit());
71		shouldThrow();
72		}
73		catch (TimeoutException success) {}
74		catch (Throwable fail) { threadUnexpectedException(fail); }
75		}
76
77	<	<T> void checkCompletedNormally(CompletableFuture<T> f, T value) {
78	<	try {
79	<	assertEquals(value, f.get(LONG_DELAY_MS, MILLISECONDS));
80	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
81	<	try {
82	<	assertEquals(value, f.join());
83	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
63	<	try {
64	<	assertEquals(value, f.getNow(null));
65	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
77	>	<T> void checkCompletedNormally(CompletableFuture<T> f, T expectedValue) {
78	>	checkTimedGet(f, expectedValue);
79	>
80	>	assertEquals(expectedValue, f.join());
81	>	assertEquals(expectedValue, f.getNow(null));
82	>
83	>	T result = null;
84		try {
85	<	assertEquals(value, f.get());
85	>	result = f.get();
86		} catch (Throwable fail) { threadUnexpectedException(fail); }
87	+	assertEquals(expectedValue, result);
88	+
89		assertTrue(f.isDone());
90		assertFalse(f.isCancelled());
91		assertFalse(f.isCompletedExceptionally());
92	<	assertTrue(f.toString().contains("[Completed normally]"));
92	>	assertTrue(f.toString().matches(".*\\[.*Completed normally.*\\]"));
93		}
94
95	<	void checkCompletedWithWrappedCFException(CompletableFuture<?> f) {
96	<	try {
97	<	f.get(LONG_DELAY_MS, MILLISECONDS);
98	<	shouldThrow();
99	<	} catch (ExecutionException success) {
100	<	assertTrue(success.getCause() instanceof CFException);
101	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
102	<	try {
83	<	f.join();
84	<	shouldThrow();
85	<	} catch (CompletionException success) {
86	<	assertTrue(success.getCause() instanceof CFException);
87	<	}
88	<	try {
89	<	f.getNow(null);
90	<	shouldThrow();
91	<	} catch (CompletionException success) {
92	<	assertTrue(success.getCause() instanceof CFException);
93	<	}
94	<	try {
95	<	f.get();
96	<	shouldThrow();
97	<	} catch (ExecutionException success) {
98	<	assertTrue(success.getCause() instanceof CFException);
99	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
100	<	assertTrue(f.isDone());
101	<	assertFalse(f.isCancelled());
102	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
95	>	/**
96	>	* Returns the "raw" internal exceptional completion of f,
97	>	* without any additional wrapping with CompletionException.
98	>	*/
99	>	Throwable exceptionalCompletion(CompletableFuture<?> f) {
100	>	// handle (and whenComplete and exceptionally) can distinguish
101	>	// between "direct" and "wrapped" exceptional completion
102	>	return f.handle((u, t) -> t).join();
103		}
104
105	<	void checkCompletedWithWrappedCFException(CompletableFuture<?> f,
106	<	CFException ex) {
105	>	void checkCompletedExceptionally(CompletableFuture<?> f,
106	>	boolean wrapped,
107	>	Consumer<Throwable> checker) {
108	>	Throwable cause = exceptionalCompletion(f);
109	>	if (wrapped) {
110	>	assertTrue(cause instanceof CompletionException);
111	>	cause = cause.getCause();
112	>	}
113	>	checker.accept(cause);
114	>
115	>	long startTime = System.nanoTime();
116		try {
117		f.get(LONG_DELAY_MS, MILLISECONDS);
118		shouldThrow();
119		} catch (ExecutionException success) {
120	<	assertSame(ex, success.getCause());
120	>	assertSame(cause, success.getCause());
121		} catch (Throwable fail) { threadUnexpectedException(fail); }
122	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
123	+
124		try {
125		f.join();
126		shouldThrow();
127		} catch (CompletionException success) {
128	<	assertSame(ex, success.getCause());
129	<	}
128	>	assertSame(cause, success.getCause());
129	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
130	>
131		try {
132		f.getNow(null);
133		shouldThrow();
134		} catch (CompletionException success) {
135	<	assertSame(ex, success.getCause());
136	<	}
135	>	assertSame(cause, success.getCause());
136	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
137	>
138		try {
139		f.get();
140		shouldThrow();
141		} catch (ExecutionException success) {
142	<	assertSame(ex, success.getCause());
142	>	assertSame(cause, success.getCause());
143		} catch (Throwable fail) { threadUnexpectedException(fail); }
144	<	assertTrue(f.isDone());
144	>
145		assertFalse(f.isCancelled());
146	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
146	>	assertTrue(f.isDone());
147	>	assertTrue(f.isCompletedExceptionally());
148	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
149	>	}
150	>
151	>	void checkCompletedWithWrappedCFException(CompletableFuture<?> f) {
152	>	checkCompletedExceptionally(f, true,
153	>	t -> assertTrue(t instanceof CFException));
154	>	}
155	>
156	>	void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) {
157	>	checkCompletedExceptionally(f, true,
158	>	t -> assertTrue(t instanceof CancellationException));
159	>	}
160	>
161	>	void checkCompletedWithTimeoutException(CompletableFuture<?> f) {
162	>	checkCompletedExceptionally(f, false,
163	>	t -> assertTrue(t instanceof TimeoutException));
164	>	}
165	>
166	>	void checkCompletedWithWrappedException(CompletableFuture<?> f,
167	>	Throwable ex) {
168	>	checkCompletedExceptionally(f, true, t -> assertSame(t, ex));
169	>	}
170	>
171	>	void checkCompletedExceptionally(CompletableFuture<?> f, Throwable ex) {
172	>	checkCompletedExceptionally(f, false, t -> assertSame(t, ex));
173		}
174
175		void checkCancelled(CompletableFuture<?> f) {
176	+	long startTime = System.nanoTime();
177		try {
178		f.get(LONG_DELAY_MS, MILLISECONDS);
179		shouldThrow();
180		} catch (CancellationException success) {
181		} catch (Throwable fail) { threadUnexpectedException(fail); }
182	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
183	+
184		try {
185		f.join();
186		shouldThrow();
#	Line 152 | Line 194 | public class CompletableFutureTest exten
194		shouldThrow();
195		} catch (CancellationException success) {
196		} catch (Throwable fail) { threadUnexpectedException(fail); }
155	–	assertTrue(f.isDone());
156	–	assertTrue(f.isCompletedExceptionally());
157	–	assertTrue(f.isCancelled());
158	–	assertTrue(f.toString().contains("[Completed exceptionally]"));
159	–	}
197
198	<	void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) {
199	<	try {
163	<	f.get(LONG_DELAY_MS, MILLISECONDS);
164	<	shouldThrow();
165	<	} catch (ExecutionException success) {
166	<	assertTrue(success.getCause() instanceof CancellationException);
167	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
168	<	try {
169	<	f.join();
170	<	shouldThrow();
171	<	} catch (CompletionException success) {
172	<	assertTrue(success.getCause() instanceof CancellationException);
173	<	}
174	<	try {
175	<	f.getNow(null);
176	<	shouldThrow();
177	<	} catch (CompletionException success) {
178	<	assertTrue(success.getCause() instanceof CancellationException);
179	<	}
180	<	try {
181	<	f.get();
182	<	shouldThrow();
183	<	} catch (ExecutionException success) {
184	<	assertTrue(success.getCause() instanceof CancellationException);
185	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
198	>	assertTrue(exceptionalCompletion(f) instanceof CancellationException);
199	>
200		assertTrue(f.isDone());
187	–	assertFalse(f.isCancelled());
201		assertTrue(f.isCompletedExceptionally());
202	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
202	>	assertTrue(f.isCancelled());
203	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
204		}
205
206		/**
#	Line 203 | Line 217 | public class CompletableFutureTest exten
217		* isCancelled, join, get, and getNow
218		*/
219		public void testComplete() {
220	+	for (Integer v1 : new Integer[] { 1, null })
221	+	{
222		CompletableFuture<Integer> f = new CompletableFuture<>();
223		checkIncomplete(f);
224	<	f.complete(one);
225	<	checkCompletedNormally(f, one);
226	<	}
224	>	assertTrue(f.complete(v1));
225	>	assertFalse(f.complete(v1));
226	>	checkCompletedNormally(f, v1);
227	>	}}
228
229		/**
230		* completeExceptionally completes exceptionally, as indicated by
#	Line 215 | Line 232 | public class CompletableFutureTest exten
232		*/
233		public void testCompleteExceptionally() {
234		CompletableFuture<Integer> f = new CompletableFuture<>();
235	+	CFException ex = new CFException();
236		checkIncomplete(f);
237	<	f.completeExceptionally(new CFException());
238	<	checkCompletedWithWrappedCFException(f);
237	>	f.completeExceptionally(ex);
238	>	checkCompletedExceptionally(f, ex);
239		}
240
241		/**
#	Line 225 | Line 243 | public class CompletableFutureTest exten
243		* methods isDone, isCancelled, join, get, and getNow
244		*/
245		public void testCancel() {
246	+	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
247	+	{
248		CompletableFuture<Integer> f = new CompletableFuture<>();
249		checkIncomplete(f);
250	<	assertTrue(f.cancel(true));
250	>	assertTrue(f.cancel(mayInterruptIfRunning));
251	>	assertTrue(f.cancel(mayInterruptIfRunning));
252	>	assertTrue(f.cancel(!mayInterruptIfRunning));
253		checkCancelled(f);
254	<	}
254	>	}}
255
256		/**
257		* obtrudeValue forces completion with given value
#	Line 237 | Line 259 | public class CompletableFutureTest exten
259		public void testObtrudeValue() {
260		CompletableFuture<Integer> f = new CompletableFuture<>();
261		checkIncomplete(f);
262	<	f.complete(one);
262	>	assertTrue(f.complete(one));
263		checkCompletedNormally(f, one);
264		f.obtrudeValue(three);
265		checkCompletedNormally(f, three);
#	Line 246 | Line 268 | public class CompletableFutureTest exten
268		f = new CompletableFuture<>();
269		f.obtrudeValue(three);
270		checkCompletedNormally(f, three);
271	+	f.obtrudeValue(null);
272	+	checkCompletedNormally(f, null);
273		f = new CompletableFuture<>();
274		f.completeExceptionally(new CFException());
275		f.obtrudeValue(four);
#	Line 256 | Line 280 | public class CompletableFutureTest exten
280		* obtrudeException forces completion with given exception
281		*/
282		public void testObtrudeException() {
283	<	CompletableFuture<Integer> f = new CompletableFuture<>();
284	<	checkIncomplete(f);
285	<	f.complete(one);
286	<	checkCompletedNormally(f, one);
287	<	f.obtrudeException(new CFException());
288	<	checkCompletedWithWrappedCFException(f);
283	>	for (Integer v1 : new Integer[] { 1, null })
284	>	{
285	>	CFException ex;
286	>	CompletableFuture<Integer> f;
287	>
288	>	f = new CompletableFuture<>();
289	>	assertTrue(f.complete(v1));
290	>	for (int i = 0; i < 2; i++) {
291	>	f.obtrudeException(ex = new CFException());
292	>	checkCompletedExceptionally(f, ex);
293	>	}
294	>
295		f = new CompletableFuture<>();
296	<	f.obtrudeException(new CFException());
297	<	checkCompletedWithWrappedCFException(f);
296	>	for (int i = 0; i < 2; i++) {
297	>	f.obtrudeException(ex = new CFException());
298	>	checkCompletedExceptionally(f, ex);
299	>	}
300	>
301		f = new CompletableFuture<>();
302		f.completeExceptionally(new CFException());
303	<	f.obtrudeValue(four);
304	<	checkCompletedNormally(f, four);
305	<	f.obtrudeException(new CFException());
306	<	checkCompletedWithWrappedCFException(f);
307	<	}
303	>	f.obtrudeValue(v1);
304	>	checkCompletedNormally(f, v1);
305	>	f.obtrudeException(ex = new CFException());
306	>	checkCompletedExceptionally(f, ex);
307	>	f.completeExceptionally(new CFException());
308	>	checkCompletedExceptionally(f, ex);
309	>	assertFalse(f.complete(v1));
310	>	checkCompletedExceptionally(f, ex);
311	>	}}
312
313		/**
314		* getNumberOfDependents returns number of dependent tasks
315		*/
316		public void testGetNumberOfDependents() {
317	+	for (ExecutionMode m : ExecutionMode.values())
318	+	for (Integer v1 : new Integer[] { 1, null })
319	+	{
320		CompletableFuture<Integer> f = new CompletableFuture<>();
321	<	assertEquals(f.getNumberOfDependents(), 0);
322	<	CompletableFuture g = f.thenRun(new Noop());
323	<	assertEquals(f.getNumberOfDependents(), 1);
324	<	assertEquals(g.getNumberOfDependents(), 0);
325	<	CompletableFuture h = f.thenRun(new Noop());
326	<	assertEquals(f.getNumberOfDependents(), 2);
327	<	f.complete(1);
321	>	assertEquals(0, f.getNumberOfDependents());
322	>	final CompletableFuture<Void> g = m.thenRun(f, new Noop(m));
323	>	assertEquals(1, f.getNumberOfDependents());
324	>	assertEquals(0, g.getNumberOfDependents());
325	>	final CompletableFuture<Void> h = m.thenRun(f, new Noop(m));
326	>	assertEquals(2, f.getNumberOfDependents());
327	>	assertEquals(0, h.getNumberOfDependents());
328	>	assertTrue(f.complete(v1));
329		checkCompletedNormally(g, null);
330	<	assertEquals(f.getNumberOfDependents(), 0);
331	<	assertEquals(g.getNumberOfDependents(), 0);
332	<	}
330	>	checkCompletedNormally(h, null);
331	>	assertEquals(0, f.getNumberOfDependents());
332	>	assertEquals(0, g.getNumberOfDependents());
333	>	assertEquals(0, h.getNumberOfDependents());
334	>	}}
335
336		/**
337		* toString indicates current completion state
338		*/
339	<	public void testToString() {
340	<	CompletableFuture<String> f;
341	<
342	<	f = new CompletableFuture<String>();
343	<	assertTrue(f.toString().contains("[Not completed]"));
344	<
345	<	f.complete("foo");
346	<	assertTrue(f.toString().contains("[Completed normally]"));
347	<
348	<	f = new CompletableFuture<String>();
349	<	f.completeExceptionally(new IndexOutOfBoundsException());
350	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
339	>	public void testToString_incomplete() {
340	>	CompletableFuture<String> f = new CompletableFuture<>();
341	>	assertTrue(f.toString().matches(".*\\[.*Not completed.*\\]"));
342	>	if (testImplementationDetails)
343	>	assertEquals(identityString(f) + "[Not completed]",
344	>	f.toString());
345	>	}
346	>
347	>	public void testToString_normal() {
348	>	CompletableFuture<String> f = new CompletableFuture<>();
349	>	assertTrue(f.complete("foo"));
350	>	assertTrue(f.toString().matches(".*\\[.*Completed normally.*\\]"));
351	>	if (testImplementationDetails)
352	>	assertEquals(identityString(f) + "[Completed normally]",
353	>	f.toString());
354	>	}
355	>
356	>	public void testToString_exception() {
357	>	CompletableFuture<String> f = new CompletableFuture<>();
358	>	assertTrue(f.completeExceptionally(new IndexOutOfBoundsException()));
359	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
360	>	if (testImplementationDetails)
361	>	assertTrue(f.toString().startsWith(
362	>	identityString(f) + "[Completed exceptionally: "));
363	>	}
364	>
365	>	public void testToString_cancelled() {
366	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false }) {
367	>	CompletableFuture<String> f = new CompletableFuture<>();
368	>	assertTrue(f.cancel(mayInterruptIfRunning));
369	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
370	>	if (testImplementationDetails)
371	>	assertTrue(f.toString().startsWith(
372	>	identityString(f) + "[Completed exceptionally: "));
373	>	}
374		}
375
376		/**
#	Line 315 | Line 381 | public class CompletableFutureTest exten
381		checkCompletedNormally(f, "test");
382		}
383
384	<	// Choose non-commutative actions for better coverage
384	>	abstract static class CheckedAction {
385	>	int invocationCount = 0;
386	>	final ExecutionMode m;
387	>	CheckedAction(ExecutionMode m) { this.m = m; }
388	>	void invoked() {
389	>	m.checkExecutionMode();
390	>	assertEquals(0, invocationCount++);
391	>	}
392	>	void assertNotInvoked() { assertEquals(0, invocationCount); }
393	>	void assertInvoked() { assertEquals(1, invocationCount); }
394	>	}
395
396	<	static final Supplier<Integer> supplyOne =
397	<	() -> Integer.valueOf(1);
398	<	static final Function<Integer, Integer> inc =
399	<	(Integer x) -> Integer.valueOf(x.intValue() + 1);
400	<	static final BiFunction<Integer, Integer, Integer> subtract =
401	<	(Integer x, Integer y) -> Integer.valueOf(x.intValue() - y.intValue());
402	<	static final class IncAction implements Consumer<Integer> {
327	<	int value;
328	<	public void accept(Integer x) { value = x.intValue() + 1; }
396	>	abstract static class CheckedIntegerAction extends CheckedAction {
397	>	Integer value;
398	>	CheckedIntegerAction(ExecutionMode m) { super(m); }
399	>	void assertValue(Integer expected) {
400	>	assertInvoked();
401	>	assertEquals(expected, value);
402	>	}
403		}
404	<	static final class SubtractAction implements BiConsumer<Integer, Integer> {
405	<	int value;
404	>
405	>	static class IntegerSupplier extends CheckedAction
406	>	implements Supplier<Integer>
407	>	{
408	>	final Integer value;
409	>	IntegerSupplier(ExecutionMode m, Integer value) {
410	>	super(m);
411	>	this.value = value;
412	>	}
413	>	public Integer get() {
414	>	invoked();
415	>	return value;
416	>	}
417	>	}
418	>
419	>	// A function that handles and produces null values as well.
420	>	static Integer inc(Integer x) {
421	>	return (x == null) ? null : x + 1;
422	>	}
423	>
424	>	static class NoopConsumer extends CheckedIntegerAction
425	>	implements Consumer<Integer>
426	>	{
427	>	NoopConsumer(ExecutionMode m) { super(m); }
428	>	public void accept(Integer x) {
429	>	invoked();
430	>	value = x;
431	>	}
432	>	}
433	>
434	>	static class IncFunction extends CheckedIntegerAction
435	>	implements Function<Integer,Integer>
436	>	{
437	>	IncFunction(ExecutionMode m) { super(m); }
438	>	public Integer apply(Integer x) {
439	>	invoked();
440	>	return value = inc(x);
441	>	}
442	>	}
443	>
444	>	// Choose non-commutative actions for better coverage
445	>	// A non-commutative function that handles and produces null values as well.
446	>	static Integer subtract(Integer x, Integer y) {
447	>	return (x == null && y == null) ? null :
448	>	((x == null) ? 42 : x.intValue())
449	>	- ((y == null) ? 99 : y.intValue());
450	>	}
451	>
452	>	static class SubtractAction extends CheckedIntegerAction
453	>	implements BiConsumer<Integer, Integer>
454	>	{
455	>	SubtractAction(ExecutionMode m) { super(m); }
456		public void accept(Integer x, Integer y) {
457	<	value = x.intValue() - y.intValue();
457	>	invoked();
458	>	value = subtract(x, y);
459		}
460		}
461	<	static final class Noop implements Runnable {
462	<	boolean ran;
463	<	public void run() { ran = true; }
461	>
462	>	static class SubtractFunction extends CheckedIntegerAction
463	>	implements BiFunction<Integer, Integer, Integer>
464	>	{
465	>	SubtractFunction(ExecutionMode m) { super(m); }
466	>	public Integer apply(Integer x, Integer y) {
467	>	invoked();
468	>	return value = subtract(x, y);
469	>	}
470	>	}
471	>
472	>	static class Noop extends CheckedAction implements Runnable {
473	>	Noop(ExecutionMode m) { super(m); }
474	>	public void run() {
475	>	invoked();
476	>	}
477		}
478
479	<	static final class FailingSupplier implements Supplier<Integer> {
480	<	boolean ran;
481	<	public Integer get() { ran = true; throw new CFException(); }
479	>	static class FailingSupplier extends CheckedAction
480	>	implements Supplier<Integer>
481	>	{
482	>	final CFException ex;
483	>	FailingSupplier(ExecutionMode m) { super(m); ex = new CFException(); }
484	>	public Integer get() {
485	>	invoked();
486	>	throw ex;
487	>	}
488		}
489	<	static final class FailingConsumer implements Consumer<Integer> {
490	<	boolean ran;
491	<	public void accept(Integer x) { ran = true; throw new CFException(); }
489	>
490	>	static class FailingConsumer extends CheckedIntegerAction
491	>	implements Consumer<Integer>
492	>	{
493	>	final CFException ex;
494	>	FailingConsumer(ExecutionMode m) { super(m); ex = new CFException(); }
495	>	public void accept(Integer x) {
496	>	invoked();
497	>	value = x;
498	>	throw ex;
499	>	}
500		}
501	<	static final class FailingBiConsumer implements BiConsumer<Integer, Integer> {
502	<	boolean ran;
503	<	public void accept(Integer x, Integer y) { ran = true; throw new CFException(); }
501	>
502	>	static class FailingBiConsumer extends CheckedIntegerAction
503	>	implements BiConsumer<Integer, Integer>
504	>	{
505	>	final CFException ex;
506	>	FailingBiConsumer(ExecutionMode m) { super(m); ex = new CFException(); }
507	>	public void accept(Integer x, Integer y) {
508	>	invoked();
509	>	value = subtract(x, y);
510	>	throw ex;
511	>	}
512		}
513	<	static final class FailingFunction implements Function<Integer, Integer> {
514	<	boolean ran;
515	<	public Integer apply(Integer x) { ran = true; throw new CFException(); }
513	>
514	>	static class FailingFunction extends CheckedIntegerAction
515	>	implements Function<Integer, Integer>
516	>	{
517	>	final CFException ex;
518	>	FailingFunction(ExecutionMode m) { super(m); ex = new CFException(); }
519	>	public Integer apply(Integer x) {
520	>	invoked();
521	>	value = x;
522	>	throw ex;
523	>	}
524		}
525	<	static final class FailingBiFunction implements BiFunction<Integer, Integer, Integer> {
526	<	boolean ran;
527	<	public Integer apply(Integer x, Integer y) { ran = true; throw new CFException(); }
525	>
526	>	static class FailingBiFunction extends CheckedIntegerAction
527	>	implements BiFunction<Integer, Integer, Integer>
528	>	{
529	>	final CFException ex;
530	>	FailingBiFunction(ExecutionMode m) { super(m); ex = new CFException(); }
531	>	public Integer apply(Integer x, Integer y) {
532	>	invoked();
533	>	value = subtract(x, y);
534	>	throw ex;
535	>	}
536		}
537	<	static final class FailingNoop implements Runnable {
538	<	boolean ran;
539	<	public void run() { ran = true; throw new CFException(); }
537	>
538	>	static class FailingRunnable extends CheckedAction implements Runnable {
539	>	final CFException ex;
540	>	FailingRunnable(ExecutionMode m) { super(m); ex = new CFException(); }
541	>	public void run() {
542	>	invoked();
543	>	throw ex;
544	>	}
545		}
546
547	<	static final class CompletableFutureInc
548	<	implements Function<Integer, CompletableFuture<Integer>> {
549	<	boolean ran;
547	>	static class CompletableFutureInc extends CheckedIntegerAction
548	>	implements Function<Integer, CompletableFuture<Integer>>
549	>	{
550	>	CompletableFutureInc(ExecutionMode m) { super(m); }
551		public CompletableFuture<Integer> apply(Integer x) {
552	<	ran = true;
552	>	invoked();
553	>	value = x;
554		CompletableFuture<Integer> f = new CompletableFuture<>();
555	<	f.complete(Integer.valueOf(x.intValue() + 1));
555	>	assertTrue(f.complete(inc(x)));
556		return f;
557		}
558		}
559
560	<	static final class FailingCompletableFutureFunction
561	<	implements Function<Integer, CompletableFuture<Integer>> {
562	<	boolean ran;
563	<	public CompletableFuture<Integer> apply(Integer x) {
564	<	ran = true; throw new CFException();
560	>	static class FailingExceptionalCompletableFutureFunction extends CheckedAction
561	>	implements Function<Throwable, CompletableFuture<Integer>>
562	>	{
563	>	final CFException ex;
564	>	FailingExceptionalCompletableFutureFunction(ExecutionMode m) { super(m); ex = new CFException(); }
565	>	public CompletableFuture<Integer> apply(Throwable x) {
566	>	invoked();
567	>	throw ex;
568		}
569		}
570
571	<	// Used for explicit executor tests
572	<	static final class ThreadExecutor implements Executor {
573	<	AtomicInteger count = new AtomicInteger(0);
574	<
575	<	public void execute(Runnable r) {
576	<	count.getAndIncrement();
577	<	new Thread(r).start();
571	>	static class ExceptionalCompletableFutureFunction extends CheckedAction
572	>	implements Function<Throwable, CompletionStage<Integer>> {
573	>	final Integer value = 3;
574	>	ExceptionalCompletableFutureFunction(ExecutionMode m) { super(m); }
575	>	public CompletionStage<Integer> apply(Throwable x) {
576	>	invoked();
577	>	CompletableFuture<Integer> d = new CompletableFuture<Integer>();
578	>	d.complete(value);
579	>	return d;
580		}
581		}
582
583	<	static final class ExceptionToInteger implements Function<Throwable, Integer> {
584	<	public Integer apply(Throwable x) { return Integer.valueOf(3); }
583	>	static class FailingCompletableFutureFunction extends CheckedIntegerAction
584	>	implements Function<Integer, CompletableFuture<Integer>>
585	>	{
586	>	final CFException ex;
587	>	FailingCompletableFutureFunction(ExecutionMode m) { super(m); ex = new CFException(); }
588	>	public CompletableFuture<Integer> apply(Integer x) {
589	>	invoked();
590	>	value = x;
591	>	throw ex;
592	>	}
593		}
594
595	<	static final class IntegerHandler implements BiFunction<Integer, Throwable, Integer> {
596	<	boolean ran;
597	<	public Integer apply(Integer x, Throwable t) {
598	<	ran = true;
599	<	return (t == null) ? two : three;
595	>	static class CountingRejectingExecutor implements Executor {
596	>	final RejectedExecutionException ex = new RejectedExecutionException();
597	>	final AtomicInteger count = new AtomicInteger(0);
598	>	public void execute(Runnable r) {
599	>	count.getAndIncrement();
600	>	throw ex;
601		}
602		}
603
604	<	/**
605	<	* exceptionally action completes with function value on source
606	<	* exception; otherwise with source value
607	<	*/
608	<	public void testExceptionally() {
609	<	CompletableFuture<Integer> f = new CompletableFuture<>();
610	<	ExceptionToInteger r = new ExceptionToInteger();
414	<	CompletableFuture<Integer> g = f.exceptionally(r);
415	<	f.completeExceptionally(new CFException());
416	<	checkCompletedNormally(g, three);
604	>	// Used for explicit executor tests
605	>	static final class ThreadExecutor implements Executor {
606	>	final AtomicInteger count = new AtomicInteger(0);
607	>	static final ThreadGroup tg = new ThreadGroup("ThreadExecutor");
608	>	static boolean startedCurrentThread() {
609	>	return Thread.currentThread().getThreadGroup() == tg;
610	>	}
611
612	<	f = new CompletableFuture<>();
613	<	r = new ExceptionToInteger();
614	<	g = f.exceptionally(r);
615	<	f.complete(one);
422	<	checkCompletedNormally(g, one);
612	>	public void execute(Runnable r) {
613	>	count.getAndIncrement();
614	>	new Thread(tg, r).start();
615	>	}
616		}
617
618	+	static final boolean defaultExecutorIsCommonPool
619	+	= ForkJoinPool.getCommonPoolParallelism() > 1;
620	+
621		/**
622	<	* handle action completes normally with function value on either
623	<	* normal or exceptional completion of source
622	>	* Permits the testing of parallel code for the 3 different
623	>	* execution modes without copy/pasting all the test methods.
624		*/
625	<	public void testHandle() {
626	<	CompletableFuture<Integer> f, g;
627	<	IntegerHandler r;
625	>	enum ExecutionMode {
626	>	SYNC {
627	>	public void checkExecutionMode() {
628	>	assertFalse(ThreadExecutor.startedCurrentThread());
629	>	assertNull(ForkJoinTask.getPool());
630	>	}
631	>	public CompletableFuture<Void> runAsync(Runnable a) {
632	>	throw new UnsupportedOperationException();
633	>	}
634	>	public <U> CompletableFuture<U> supplyAsync(Supplier<U> a) {
635	>	throw new UnsupportedOperationException();
636	>	}
637	>	public <T> CompletableFuture<Void> thenRun
638	>	(CompletableFuture<T> f, Runnable a) {
639	>	return f.thenRun(a);
640	>	}
641	>	public <T> CompletableFuture<Void> thenAccept
642	>	(CompletableFuture<T> f, Consumer<? super T> a) {
643	>	return f.thenAccept(a);
644	>	}
645	>	public <T,U> CompletableFuture<U> thenApply
646	>	(CompletableFuture<T> f, Function<? super T,U> a) {
647	>	return f.thenApply(a);
648	>	}
649	>	public <T,U> CompletableFuture<U> thenCompose
650	>	(CompletableFuture<T> f,
651	>	Function<? super T,? extends CompletionStage<U>> a) {
652	>	return f.thenCompose(a);
653	>	}
654	>	public <T,U> CompletableFuture<U> handle
655	>	(CompletableFuture<T> f,
656	>	BiFunction<? super T,Throwable,? extends U> a) {
657	>	return f.handle(a);
658	>	}
659	>	public <T> CompletableFuture<T> whenComplete
660	>	(CompletableFuture<T> f,
661	>	BiConsumer<? super T,? super Throwable> a) {
662	>	return f.whenComplete(a);
663	>	}
664	>	public <T,U> CompletableFuture<Void> runAfterBoth
665	>	(CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) {
666	>	return f.runAfterBoth(g, a);
667	>	}
668	>	public <T,U> CompletableFuture<Void> thenAcceptBoth
669	>	(CompletableFuture<T> f,
670	>	CompletionStage<? extends U> g,
671	>	BiConsumer<? super T,? super U> a) {
672	>	return f.thenAcceptBoth(g, a);
673	>	}
674	>	public <T,U,V> CompletableFuture<V> thenCombine
675	>	(CompletableFuture<T> f,
676	>	CompletionStage<? extends U> g,
677	>	BiFunction<? super T,? super U,? extends V> a) {
678	>	return f.thenCombine(g, a);
679	>	}
680	>	public <T> CompletableFuture<Void> runAfterEither
681	>	(CompletableFuture<T> f,
682	>	CompletionStage<?> g,
683	>	java.lang.Runnable a) {
684	>	return f.runAfterEither(g, a);
685	>	}
686	>	public <T> CompletableFuture<Void> acceptEither
687	>	(CompletableFuture<T> f,
688	>	CompletionStage<? extends T> g,
689	>	Consumer<? super T> a) {
690	>	return f.acceptEither(g, a);
691	>	}
692	>	public <T,U> CompletableFuture<U> applyToEither
693	>	(CompletableFuture<T> f,
694	>	CompletionStage<? extends T> g,
695	>	Function<? super T,U> a) {
696	>	return f.applyToEither(g, a);
697	>	}
698	>	public <T> CompletableFuture<T> exceptionally
699	>	(CompletableFuture<T> f,
700	>	Function<Throwable, ? extends T> fn) {
701	>	return f.exceptionally(fn);
702	>	}
703	>	public <T> CompletableFuture<T> exceptionallyCompose
704	>	(CompletableFuture<T> f, Function<Throwable, ? extends CompletionStage<T>> fn) {
705	>	return f.exceptionallyCompose(fn);
706	>	}
707	>	},
708	>	ASYNC {
709	>	public void checkExecutionMode() {
710	>	assertEquals(defaultExecutorIsCommonPool,
711	>	(ForkJoinPool.commonPool() == ForkJoinTask.getPool()));
712	>	}
713	>	public CompletableFuture<Void> runAsync(Runnable a) {
714	>	return CompletableFuture.runAsync(a);
715	>	}
716	>	public <U> CompletableFuture<U> supplyAsync(Supplier<U> a) {
717	>	return CompletableFuture.supplyAsync(a);
718	>	}
719	>	public <T> CompletableFuture<Void> thenRun
720	>	(CompletableFuture<T> f, Runnable a) {
721	>	return f.thenRunAsync(a);
722	>	}
723	>	public <T> CompletableFuture<Void> thenAccept
724	>	(CompletableFuture<T> f, Consumer<? super T> a) {
725	>	return f.thenAcceptAsync(a);
726	>	}
727	>	public <T,U> CompletableFuture<U> thenApply
728	>	(CompletableFuture<T> f, Function<? super T,U> a) {
729	>	return f.thenApplyAsync(a);
730	>	}
731	>	public <T,U> CompletableFuture<U> thenCompose
732	>	(CompletableFuture<T> f,
733	>	Function<? super T,? extends CompletionStage<U>> a) {
734	>	return f.thenComposeAsync(a);
735	>	}
736	>	public <T,U> CompletableFuture<U> handle
737	>	(CompletableFuture<T> f,
738	>	BiFunction<? super T,Throwable,? extends U> a) {
739	>	return f.handleAsync(a);
740	>	}
741	>	public <T> CompletableFuture<T> whenComplete
742	>	(CompletableFuture<T> f,
743	>	BiConsumer<? super T,? super Throwable> a) {
744	>	return f.whenCompleteAsync(a);
745	>	}
746	>	public <T,U> CompletableFuture<Void> runAfterBoth
747	>	(CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) {
748	>	return f.runAfterBothAsync(g, a);
749	>	}
750	>	public <T,U> CompletableFuture<Void> thenAcceptBoth
751	>	(CompletableFuture<T> f,
752	>	CompletionStage<? extends U> g,
753	>	BiConsumer<? super T,? super U> a) {
754	>	return f.thenAcceptBothAsync(g, a);
755	>	}
756	>	public <T,U,V> CompletableFuture<V> thenCombine
757	>	(CompletableFuture<T> f,
758	>	CompletionStage<? extends U> g,
759	>	BiFunction<? super T,? super U,? extends V> a) {
760	>	return f.thenCombineAsync(g, a);
761	>	}
762	>	public <T> CompletableFuture<Void> runAfterEither
763	>	(CompletableFuture<T> f,
764	>	CompletionStage<?> g,
765	>	java.lang.Runnable a) {
766	>	return f.runAfterEitherAsync(g, a);
767	>	}
768	>	public <T> CompletableFuture<Void> acceptEither
769	>	(CompletableFuture<T> f,
770	>	CompletionStage<? extends T> g,
771	>	Consumer<? super T> a) {
772	>	return f.acceptEitherAsync(g, a);
773	>	}
774	>	public <T,U> CompletableFuture<U> applyToEither
775	>	(CompletableFuture<T> f,
776	>	CompletionStage<? extends T> g,
777	>	Function<? super T,U> a) {
778	>	return f.applyToEitherAsync(g, a);
779	>	}
780	>	public <T> CompletableFuture<T> exceptionally
781	>	(CompletableFuture<T> f,
782	>	Function<Throwable, ? extends T> fn) {
783	>	return f.exceptionallyAsync(fn);
784	>	}
785
786	<	f = new CompletableFuture<>();
787	<	f.completeExceptionally(new CFException());
788	<	g = f.handle(r = new IntegerHandler());
789	<	assertTrue(r.ran);
437	<	checkCompletedNormally(g, three);
786	>	public <T> CompletableFuture<T> exceptionallyCompose
787	>	(CompletableFuture<T> f, Function<Throwable, ? extends CompletionStage<T>> fn) {
788	>	return f.exceptionallyComposeAsync(fn);
789	>	}
790
791	<	f = new CompletableFuture<>();
440	<	g = f.handle(r = new IntegerHandler());
441	<	assertFalse(r.ran);
442	<	f.completeExceptionally(new CFException());
443	<	checkCompletedNormally(g, three);
444	<	assertTrue(r.ran);
791	>	},
792
793	<	f = new CompletableFuture<>();
794	<	f.complete(one);
795	<	g = f.handle(r = new IntegerHandler());
796	<	assertTrue(r.ran);
797	<	checkCompletedNormally(g, two);
793	>	EXECUTOR {
794	>	public void checkExecutionMode() {
795	>	assertTrue(ThreadExecutor.startedCurrentThread());
796	>	}
797	>	public CompletableFuture<Void> runAsync(Runnable a) {
798	>	return CompletableFuture.runAsync(a, new ThreadExecutor());
799	>	}
800	>	public <U> CompletableFuture<U> supplyAsync(Supplier<U> a) {
801	>	return CompletableFuture.supplyAsync(a, new ThreadExecutor());
802	>	}
803	>	public <T> CompletableFuture<Void> thenRun
804	>	(CompletableFuture<T> f, Runnable a) {
805	>	return f.thenRunAsync(a, new ThreadExecutor());
806	>	}
807	>	public <T> CompletableFuture<Void> thenAccept
808	>	(CompletableFuture<T> f, Consumer<? super T> a) {
809	>	return f.thenAcceptAsync(a, new ThreadExecutor());
810	>	}
811	>	public <T,U> CompletableFuture<U> thenApply
812	>	(CompletableFuture<T> f, Function<? super T,U> a) {
813	>	return f.thenApplyAsync(a, new ThreadExecutor());
814	>	}
815	>	public <T,U> CompletableFuture<U> thenCompose
816	>	(CompletableFuture<T> f,
817	>	Function<? super T,? extends CompletionStage<U>> a) {
818	>	return f.thenComposeAsync(a, new ThreadExecutor());
819	>	}
820	>	public <T,U> CompletableFuture<U> handle
821	>	(CompletableFuture<T> f,
822	>	BiFunction<? super T,Throwable,? extends U> a) {
823	>	return f.handleAsync(a, new ThreadExecutor());
824	>	}
825	>	public <T> CompletableFuture<T> whenComplete
826	>	(CompletableFuture<T> f,
827	>	BiConsumer<? super T,? super Throwable> a) {
828	>	return f.whenCompleteAsync(a, new ThreadExecutor());
829	>	}
830	>	public <T,U> CompletableFuture<Void> runAfterBoth
831	>	(CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) {
832	>	return f.runAfterBothAsync(g, a, new ThreadExecutor());
833	>	}
834	>	public <T,U> CompletableFuture<Void> thenAcceptBoth
835	>	(CompletableFuture<T> f,
836	>	CompletionStage<? extends U> g,
837	>	BiConsumer<? super T,? super U> a) {
838	>	return f.thenAcceptBothAsync(g, a, new ThreadExecutor());
839	>	}
840	>	public <T,U,V> CompletableFuture<V> thenCombine
841	>	(CompletableFuture<T> f,
842	>	CompletionStage<? extends U> g,
843	>	BiFunction<? super T,? super U,? extends V> a) {
844	>	return f.thenCombineAsync(g, a, new ThreadExecutor());
845	>	}
846	>	public <T> CompletableFuture<Void> runAfterEither
847	>	(CompletableFuture<T> f,
848	>	CompletionStage<?> g,
849	>	java.lang.Runnable a) {
850	>	return f.runAfterEitherAsync(g, a, new ThreadExecutor());
851	>	}
852	>	public <T> CompletableFuture<Void> acceptEither
853	>	(CompletableFuture<T> f,
854	>	CompletionStage<? extends T> g,
855	>	Consumer<? super T> a) {
856	>	return f.acceptEitherAsync(g, a, new ThreadExecutor());
857	>	}
858	>	public <T,U> CompletableFuture<U> applyToEither
859	>	(CompletableFuture<T> f,
860	>	CompletionStage<? extends T> g,
861	>	Function<? super T,U> a) {
862	>	return f.applyToEitherAsync(g, a, new ThreadExecutor());
863	>	}
864	>	public <T> CompletableFuture<T> exceptionally
865	>	(CompletableFuture<T> f,
866	>	Function<Throwable, ? extends T> fn) {
867	>	return f.exceptionallyAsync(fn, new ThreadExecutor());
868	>	}
869	>	public <T> CompletableFuture<T> exceptionallyCompose
870	>	(CompletableFuture<T> f, Function<Throwable, ? extends CompletionStage<T>> fn) {
871	>	return f.exceptionallyComposeAsync(fn, new ThreadExecutor());
872	>	}
873
874	<	f = new CompletableFuture<>();
875	<	g = f.handle(r = new IntegerHandler());
876	<	assertFalse(r.ran);
877	<	f.complete(one);
878	<	assertTrue(r.ran);
879	<	checkCompletedNormally(g, two);
874	>	};
875	>
876	>	public abstract void checkExecutionMode();
877	>	public abstract CompletableFuture<Void> runAsync(Runnable a);
878	>	public abstract <U> CompletableFuture<U> supplyAsync(Supplier<U> a);
879	>	public abstract <T> CompletableFuture<Void> thenRun
880	>	(CompletableFuture<T> f, Runnable a);
881	>	public abstract <T> CompletableFuture<Void> thenAccept
882	>	(CompletableFuture<T> f, Consumer<? super T> a);
883	>	public abstract <T,U> CompletableFuture<U> thenApply
884	>	(CompletableFuture<T> f, Function<? super T,U> a);
885	>	public abstract <T,U> CompletableFuture<U> thenCompose
886	>	(CompletableFuture<T> f,
887	>	Function<? super T,? extends CompletionStage<U>> a);
888	>	public abstract <T,U> CompletableFuture<U> handle
889	>	(CompletableFuture<T> f,
890	>	BiFunction<? super T,Throwable,? extends U> a);
891	>	public abstract <T> CompletableFuture<T> whenComplete
892	>	(CompletableFuture<T> f,
893	>	BiConsumer<? super T,? super Throwable> a);
894	>	public abstract <T,U> CompletableFuture<Void> runAfterBoth
895	>	(CompletableFuture<T> f, CompletableFuture<U> g, Runnable a);
896	>	public abstract <T,U> CompletableFuture<Void> thenAcceptBoth
897	>	(CompletableFuture<T> f,
898	>	CompletionStage<? extends U> g,
899	>	BiConsumer<? super T,? super U> a);
900	>	public abstract <T,U,V> CompletableFuture<V> thenCombine
901	>	(CompletableFuture<T> f,
902	>	CompletionStage<? extends U> g,
903	>	BiFunction<? super T,? super U,? extends V> a);
904	>	public abstract <T> CompletableFuture<Void> runAfterEither
905	>	(CompletableFuture<T> f,
906	>	CompletionStage<?> g,
907	>	java.lang.Runnable a);
908	>	public abstract <T> CompletableFuture<Void> acceptEither
909	>	(CompletableFuture<T> f,
910	>	CompletionStage<? extends T> g,
911	>	Consumer<? super T> a);
912	>	public abstract <T,U> CompletableFuture<U> applyToEither
913	>	(CompletableFuture<T> f,
914	>	CompletionStage<? extends T> g,
915	>	Function<? super T,U> a);
916	>	public abstract <T> CompletableFuture<T> exceptionally
917	>	(CompletableFuture<T> f,
918	>	Function<Throwable, ? extends T> fn);
919	>	public abstract <T> CompletableFuture<T> exceptionallyCompose
920	>	(CompletableFuture<T> f,
921	>	Function<Throwable, ? extends CompletionStage<T>> fn);
922		}
923
924		/**
925	<	* runAsync completes after running Runnable
925	>	* exceptionally action is not invoked when source completes
926	>	* normally, and source result is propagated
927		*/
928	<	public void testRunAsync() {
929	<	Noop r = new Noop();
930	<	CompletableFuture<Void> f = CompletableFuture.runAsync(r);
931	<	assertNull(f.join());
932	<	assertTrue(r.ran);
933	<	checkCompletedNormally(f, null);
934	<	}
928	>	public void testExceptionally_normalCompletion() {
929	>	for (ExecutionMode m : ExecutionMode.values())
930	>	for (boolean createIncomplete : new boolean[] { true, false })
931	>	for (Integer v1 : new Integer[] { 1, null })
932	>	{
933	>	final AtomicInteger a = new AtomicInteger(0);
934	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
935	>	if (!createIncomplete) assertTrue(f.complete(v1));
936	>	final CompletableFuture<Integer> g = m.exceptionally
937	>	(f, (Throwable t) -> {
938	>	a.getAndIncrement();
939	>	threadFail("should not be called");
940	>	return null;            // unreached
941	>	});
942	>	if (createIncomplete) assertTrue(f.complete(v1));
943	>
944	>	checkCompletedNormally(g, v1);
945	>	checkCompletedNormally(f, v1);
946	>	assertEquals(0, a.get());
947	>	}}
948
949		/**
950	<	* runAsync with executor completes after running Runnable
950	>	* exceptionally action completes with function value on source
951	>	* exception
952		*/
953	<	public void testRunAsync2() {
954	<	Noop r = new Noop();
955	<	ThreadExecutor exec = new ThreadExecutor();
956	<	CompletableFuture<Void> f = CompletableFuture.runAsync(r, exec);
957	<	assertNull(f.join());
958	<	assertTrue(r.ran);
959	<	checkCompletedNormally(f, null);
960	<	assertEquals(1, exec.count.get());
961	<	}
953	>	public void testExceptionally_exceptionalCompletion() {
954	>	for (ExecutionMode m : ExecutionMode.values())
955	>	for (boolean createIncomplete : new boolean[] { true, false })
956	>	for (Integer v1 : new Integer[] { 1, null })
957	>	{
958	>	final AtomicInteger a = new AtomicInteger(0);
959	>	final CFException ex = new CFException();
960	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
961	>	if (!createIncomplete) f.completeExceptionally(ex);
962	>	final CompletableFuture<Integer> g = m.exceptionally
963	>	(f, (Throwable t) -> {
964	>	m.checkExecutionMode();
965	>	threadAssertSame(t, ex);
966	>	a.getAndIncrement();
967	>	return v1;
968	>	});
969	>	if (createIncomplete) f.completeExceptionally(ex);
970	>
971	>	checkCompletedNormally(g, v1);
972	>	assertEquals(1, a.get());
973	>	}}
974
975		/**
976	<	* failing runAsync completes exceptionally after running Runnable
976	>	* If an "exceptionally action" throws an exception, it completes
977	>	* exceptionally with that exception
978		*/
979	<	public void testRunAsync3() {
980	<	FailingNoop r = new FailingNoop();
981	<	CompletableFuture<Void> f = CompletableFuture.runAsync(r);
982	<	checkCompletedWithWrappedCFException(f);
983	<	assertTrue(r.ran);
984	<	}
979	>	public void testExceptionally_exceptionalCompletionActionFailed() {
980	>	for (ExecutionMode m : ExecutionMode.values())
981	>	for (boolean createIncomplete : new boolean[] { true, false })
982	>	{
983	>	final AtomicInteger a = new AtomicInteger(0);
984	>	final CFException ex1 = new CFException();
985	>	final CFException ex2 = new CFException();
986	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
987	>	if (!createIncomplete) f.completeExceptionally(ex1);
988	>	final CompletableFuture<Integer> g = m.exceptionally
989	>	(f, (Throwable t) -> {
990	>	m.checkExecutionMode();
991	>	threadAssertSame(t, ex1);
992	>	a.getAndIncrement();
993	>	throw ex2;
994	>	});
995	>	if (createIncomplete) f.completeExceptionally(ex1);
996	>
997	>	checkCompletedWithWrappedException(g, ex2);
998	>	checkCompletedExceptionally(f, ex1);
999	>	assertEquals(1, a.get());
1000	>	}}
1001
1002		/**
1003	<	* supplyAsync completes with result of supplier
1003	>	* whenComplete action executes on normal completion, propagating
1004	>	* source result.
1005		*/
1006	<	public void testSupplyAsync() {
1007	<	CompletableFuture<Integer> f;
1008	<	f = CompletableFuture.supplyAsync(supplyOne);
1009	<	assertEquals(f.join(), one);
1010	<	checkCompletedNormally(f, one);
1011	<	}
1006	>	public void testWhenComplete_normalCompletion() {
1007	>	for (ExecutionMode m : ExecutionMode.values())
1008	>	for (boolean createIncomplete : new boolean[] { true, false })
1009	>	for (Integer v1 : new Integer[] { 1, null })
1010	>	{
1011	>	final AtomicInteger a = new AtomicInteger(0);
1012	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1013	>	if (!createIncomplete) assertTrue(f.complete(v1));
1014	>	final CompletableFuture<Integer> g = m.whenComplete
1015	>	(f,
1016	>	(Integer result, Throwable t) -> {
1017	>	m.checkExecutionMode();
1018	>	threadAssertSame(result, v1);
1019	>	threadAssertNull(t);
1020	>	a.getAndIncrement();
1021	>	});
1022	>	if (createIncomplete) assertTrue(f.complete(v1));
1023	>
1024	>	checkCompletedNormally(g, v1);
1025	>	checkCompletedNormally(f, v1);
1026	>	assertEquals(1, a.get());
1027	>	}}
1028
1029		/**
1030	<	* supplyAsync with executor completes with result of supplier
1030	>	* whenComplete action executes on exceptional completion, propagating
1031	>	* source result.
1032		*/
1033	<	public void testSupplyAsync2() {
1034	<	CompletableFuture<Integer> f;
1035	<	f = CompletableFuture.supplyAsync(supplyOne, new ThreadExecutor());
1036	<	assertEquals(f.join(), one);
1037	<	checkCompletedNormally(f, one);
1038	<	}
1033	>	public void testWhenComplete_exceptionalCompletion() {
1034	>	for (ExecutionMode m : ExecutionMode.values())
1035	>	for (boolean createIncomplete : new boolean[] { true, false })
1036	>	{
1037	>	final AtomicInteger a = new AtomicInteger(0);
1038	>	final CFException ex = new CFException();
1039	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1040	>	if (!createIncomplete) f.completeExceptionally(ex);
1041	>	final CompletableFuture<Integer> g = m.whenComplete
1042	>	(f,
1043	>	(Integer result, Throwable t) -> {
1044	>	m.checkExecutionMode();
1045	>	threadAssertNull(result);
1046	>	threadAssertSame(t, ex);
1047	>	a.getAndIncrement();
1048	>	});
1049	>	if (createIncomplete) f.completeExceptionally(ex);
1050	>
1051	>	checkCompletedWithWrappedException(g, ex);
1052	>	checkCompletedExceptionally(f, ex);
1053	>	assertEquals(1, a.get());
1054	>	}}
1055
1056		/**
1057	<	* Failing supplyAsync completes exceptionally
1057	>	* whenComplete action executes on cancelled source, propagating
1058	>	* CancellationException.
1059		*/
1060	<	public void testSupplyAsync3() {
1061	<	FailingSupplier r = new FailingSupplier();
1062	<	CompletableFuture<Integer> f = CompletableFuture.supplyAsync(r);
1063	<	checkCompletedWithWrappedCFException(f);
1064	<	assertTrue(r.ran);
1065	<	}
1060	>	public void testWhenComplete_sourceCancelled() {
1061	>	for (ExecutionMode m : ExecutionMode.values())
1062	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1063	>	for (boolean createIncomplete : new boolean[] { true, false })
1064	>	{
1065	>	final AtomicInteger a = new AtomicInteger(0);
1066	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1067	>	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1068	>	final CompletableFuture<Integer> g = m.whenComplete
1069	>	(f,
1070	>	(Integer result, Throwable t) -> {
1071	>	m.checkExecutionMode();
1072	>	threadAssertNull(result);
1073	>	threadAssertTrue(t instanceof CancellationException);
1074	>	a.getAndIncrement();
1075	>	});
1076	>	if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1077
1078	<	// seq completion methods
1078	>	checkCompletedWithWrappedCancellationException(g);
1079	>	checkCancelled(f);
1080	>	assertEquals(1, a.get());
1081	>	}}
1082
1083		/**
1084	<	* thenRun result completes normally after normal completion of source
1084	>	* If a whenComplete action throws an exception when triggered by
1085	>	* a normal completion, it completes exceptionally
1086		*/
1087	<	public void testThenRun() {
1088	<	CompletableFuture<Integer> f;
1089	<	CompletableFuture<Void> g;
1090	<	Noop r;
1091	<
1092	<	f = new CompletableFuture<>();
1093	<	g = f.thenRun(r = new Noop());
1094	<	f.complete(null);
1095	<	checkCompletedNormally(g, null);
1096	<	assertTrue(r.ran);
1087	>	public void testWhenComplete_sourceCompletedNormallyActionFailed() {
1088	>	for (boolean createIncomplete : new boolean[] { true, false })
1089	>	for (ExecutionMode m : ExecutionMode.values())
1090	>	for (Integer v1 : new Integer[] { 1, null })
1091	>	{
1092	>	final AtomicInteger a = new AtomicInteger(0);
1093	>	final CFException ex = new CFException();
1094	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1095	>	if (!createIncomplete) assertTrue(f.complete(v1));
1096	>	final CompletableFuture<Integer> g = m.whenComplete
1097	>	(f,
1098	>	(Integer result, Throwable t) -> {
1099	>	m.checkExecutionMode();
1100	>	threadAssertSame(result, v1);
1101	>	threadAssertNull(t);
1102	>	a.getAndIncrement();
1103	>	throw ex;
1104	>	});
1105	>	if (createIncomplete) assertTrue(f.complete(v1));
1106
1107	<	f = new CompletableFuture<>();
1108	<	f.complete(null);
1109	<	g = f.thenRun(r = new Noop());
1110	<	checkCompletedNormally(g, null);
544	<	assertTrue(r.ran);
545	<	}
1107	>	checkCompletedWithWrappedException(g, ex);
1108	>	checkCompletedNormally(f, v1);
1109	>	assertEquals(1, a.get());
1110	>	}}
1111
1112		/**
1113	<	* thenRun result completes exceptionally after exceptional
1114	<	* completion of source
1113	>	* If a whenComplete action throws an exception when triggered by
1114	>	* a source completion that also throws an exception, the source
1115	>	* exception takes precedence (unlike handle)
1116		*/
1117	<	public void testThenRun2() {
1118	<	CompletableFuture<Integer> f;
1119	<	CompletableFuture<Void> g;
1120	<	Noop r;
1121	<
1122	<	f = new CompletableFuture<>();
1123	<	g = f.thenRun(r = new Noop());
1124	<	f.completeExceptionally(new CFException());
559	<	checkCompletedWithWrappedCFException(g);
560	<	assertFalse(r.ran);
1117	>	public void testWhenComplete_sourceFailedActionFailed() {
1118	>	for (boolean createIncomplete : new boolean[] { true, false })
1119	>	for (ExecutionMode m : ExecutionMode.values())
1120	>	{
1121	>	final AtomicInteger a = new AtomicInteger(0);
1122	>	final CFException ex1 = new CFException();
1123	>	final CFException ex2 = new CFException();
1124	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1125
1126	<	f = new CompletableFuture<>();
1127	<	f.completeExceptionally(new CFException());
1128	<	g = f.thenRun(r = new Noop());
1129	<	checkCompletedWithWrappedCFException(g);
1130	<	assertFalse(r.ran);
1131	<	}
1126	>	if (!createIncomplete) f.completeExceptionally(ex1);
1127	>	final CompletableFuture<Integer> g = m.whenComplete
1128	>	(f,
1129	>	(Integer result, Throwable t) -> {
1130	>	m.checkExecutionMode();
1131	>	threadAssertSame(t, ex1);
1132	>	threadAssertNull(result);
1133	>	a.getAndIncrement();
1134	>	throw ex2;
1135	>	});
1136	>	if (createIncomplete) f.completeExceptionally(ex1);
1137	>
1138	>	checkCompletedWithWrappedException(g, ex1);
1139	>	checkCompletedExceptionally(f, ex1);
1140	>	if (testImplementationDetails) {
1141	>	assertEquals(1, ex1.getSuppressed().length);
1142	>	assertSame(ex2, ex1.getSuppressed()[0]);
1143	>	}
1144	>	assertEquals(1, a.get());
1145	>	}}
1146
1147		/**
1148	<	* thenRun result completes exceptionally if action does
1148	>	* handle action completes normally with function value on normal
1149	>	* completion of source
1150		*/
1151	<	public void testThenRun3() {
1152	<	CompletableFuture<Integer> f;
1153	<	CompletableFuture<Void> g;
1154	<	FailingNoop r;
1155	<
1156	<	f = new CompletableFuture<>();
1157	<	g = f.thenRun(r = new FailingNoop());
1158	<	f.complete(null);
1159	<	checkCompletedWithWrappedCFException(g);
1151	>	public void testHandle_normalCompletion() {
1152	>	for (ExecutionMode m : ExecutionMode.values())
1153	>	for (boolean createIncomplete : new boolean[] { true, false })
1154	>	for (Integer v1 : new Integer[] { 1, null })
1155	>	{
1156	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1157	>	final AtomicInteger a = new AtomicInteger(0);
1158	>	if (!createIncomplete) assertTrue(f.complete(v1));
1159	>	final CompletableFuture<Integer> g = m.handle
1160	>	(f,
1161	>	(Integer result, Throwable t) -> {
1162	>	m.checkExecutionMode();
1163	>	threadAssertSame(result, v1);
1164	>	threadAssertNull(t);
1165	>	a.getAndIncrement();
1166	>	return inc(v1);
1167	>	});
1168	>	if (createIncomplete) assertTrue(f.complete(v1));
1169
1170	<	f = new CompletableFuture<>();
1171	<	f.complete(null);
1172	<	g = f.thenRun(r = new FailingNoop());
1173	<	checkCompletedWithWrappedCFException(g);
586	<	}
1170	>	checkCompletedNormally(g, inc(v1));
1171	>	checkCompletedNormally(f, v1);
1172	>	assertEquals(1, a.get());
1173	>	}}
1174
1175		/**
1176	<	* thenRun result completes exceptionally if source cancelled
1176	>	* handle action completes normally with function value on
1177	>	* exceptional completion of source
1178		*/
1179	<	public void testThenRun4() {
1180	<	CompletableFuture<Integer> f;
1181	<	CompletableFuture<Void> g;
1182	<	Noop r;
1183	<
1184	<	f = new CompletableFuture<>();
1185	<	g = f.thenRun(r = new Noop());
1186	<	assertTrue(f.cancel(true));
1187	<	checkCompletedWithWrappedCancellationException(g);
1179	>	public void testHandle_exceptionalCompletion() {
1180	>	for (ExecutionMode m : ExecutionMode.values())
1181	>	for (boolean createIncomplete : new boolean[] { true, false })
1182	>	for (Integer v1 : new Integer[] { 1, null })
1183	>	{
1184	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1185	>	final AtomicInteger a = new AtomicInteger(0);
1186	>	final CFException ex = new CFException();
1187	>	if (!createIncomplete) f.completeExceptionally(ex);
1188	>	final CompletableFuture<Integer> g = m.handle
1189	>	(f,
1190	>	(Integer result, Throwable t) -> {
1191	>	m.checkExecutionMode();
1192	>	threadAssertNull(result);
1193	>	threadAssertSame(t, ex);
1194	>	a.getAndIncrement();
1195	>	return v1;
1196	>	});
1197	>	if (createIncomplete) f.completeExceptionally(ex);
1198
1199	<	f = new CompletableFuture<>();
1200	<	assertTrue(f.cancel(true));
1201	<	g = f.thenRun(r = new Noop());
1202	<	checkCompletedWithWrappedCancellationException(g);
605	<	}
1199	>	checkCompletedNormally(g, v1);
1200	>	checkCompletedExceptionally(f, ex);
1201	>	assertEquals(1, a.get());
1202	>	}}
1203
1204		/**
1205	<	* thenApply result completes normally after normal completion of source
1205	>	* handle action completes normally with function value on
1206	>	* cancelled source
1207		*/
1208	<	public void testThenApply() {
1209	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1210	<	CompletableFuture<Integer> g = f.thenApply(inc);
1211	<	f.complete(one);
1212	<	checkCompletedNormally(g, two);
1213	<	}
1208	>	public void testHandle_sourceCancelled() {
1209	>	for (ExecutionMode m : ExecutionMode.values())
1210	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1211	>	for (boolean createIncomplete : new boolean[] { true, false })
1212	>	for (Integer v1 : new Integer[] { 1, null })
1213	>	{
1214	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1215	>	final AtomicInteger a = new AtomicInteger(0);
1216	>	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1217	>	final CompletableFuture<Integer> g = m.handle
1218	>	(f,
1219	>	(Integer result, Throwable t) -> {
1220	>	m.checkExecutionMode();
1221	>	threadAssertNull(result);
1222	>	threadAssertTrue(t instanceof CancellationException);
1223	>	a.getAndIncrement();
1224	>	return v1;
1225	>	});
1226	>	if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1227	>
1228	>	checkCompletedNormally(g, v1);
1229	>	checkCancelled(f);
1230	>	assertEquals(1, a.get());
1231	>	}}
1232
1233		/**
1234	<	* thenApply result completes exceptionally after exceptional
1235	<	* completion of source
1234	>	* If a "handle action" throws an exception when triggered by
1235	>	* a normal completion, it completes exceptionally
1236		*/
1237	<	public void testThenApply2() {
1238	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1239	<	CompletableFuture<Integer> g = f.thenApply(inc);
1240	<	f.completeExceptionally(new CFException());
1241	<	checkCompletedWithWrappedCFException(g);
1242	<	}
1237	>	public void testHandle_sourceCompletedNormallyActionFailed() {
1238	>	for (ExecutionMode m : ExecutionMode.values())
1239	>	for (boolean createIncomplete : new boolean[] { true, false })
1240	>	for (Integer v1 : new Integer[] { 1, null })
1241	>	{
1242	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1243	>	final AtomicInteger a = new AtomicInteger(0);
1244	>	final CFException ex = new CFException();
1245	>	if (!createIncomplete) assertTrue(f.complete(v1));
1246	>	final CompletableFuture<Integer> g = m.handle
1247	>	(f,
1248	>	(Integer result, Throwable t) -> {
1249	>	m.checkExecutionMode();
1250	>	threadAssertSame(result, v1);
1251	>	threadAssertNull(t);
1252	>	a.getAndIncrement();
1253	>	throw ex;
1254	>	});
1255	>	if (createIncomplete) assertTrue(f.complete(v1));
1256	>
1257	>	checkCompletedWithWrappedException(g, ex);
1258	>	checkCompletedNormally(f, v1);
1259	>	assertEquals(1, a.get());
1260	>	}}
1261
1262		/**
1263	<	* thenApply result completes exceptionally if action does
1263	>	* If a "handle action" throws an exception when triggered by
1264	>	* a source completion that also throws an exception, the action
1265	>	* exception takes precedence (unlike whenComplete)
1266		*/
1267	<	public void testThenApply3() {
1268	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1269	<	CompletableFuture<Integer> g = f.thenApply(new FailingFunction());
1270	<	f.complete(one);
1271	<	checkCompletedWithWrappedCFException(g);
1272	<	}
1267	>	public void testHandle_sourceFailedActionFailed() {
1268	>	for (boolean createIncomplete : new boolean[] { true, false })
1269	>	for (ExecutionMode m : ExecutionMode.values())
1270	>	{
1271	>	final AtomicInteger a = new AtomicInteger(0);
1272	>	final CFException ex1 = new CFException();
1273	>	final CFException ex2 = new CFException();
1274	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1275	>
1276	>	if (!createIncomplete) f.completeExceptionally(ex1);
1277	>	final CompletableFuture<Integer> g = m.handle
1278	>	(f,
1279	>	(Integer result, Throwable t) -> {
1280	>	m.checkExecutionMode();
1281	>	threadAssertNull(result);
1282	>	threadAssertSame(ex1, t);
1283	>	a.getAndIncrement();
1284	>	throw ex2;
1285	>	});
1286	>	if (createIncomplete) f.completeExceptionally(ex1);
1287	>
1288	>	checkCompletedWithWrappedException(g, ex2);
1289	>	checkCompletedExceptionally(f, ex1);
1290	>	assertEquals(1, a.get());
1291	>	}}
1292
1293		/**
1294	<	* thenApply result completes exceptionally if source cancelled
1294	>	* runAsync completes after running Runnable
1295		*/
1296	<	public void testThenApply4() {
1297	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1298	<	CompletableFuture<Integer> g = f.thenApply(inc);
1299	<	assertTrue(f.cancel(true));
1300	<	checkCompletedWithWrappedCancellationException(g);
1301	<	}
1296	>	public void testRunAsync_normalCompletion() {
1297	>	ExecutionMode[] executionModes = {
1298	>	ExecutionMode.ASYNC,
1299	>	ExecutionMode.EXECUTOR,
1300	>	};
1301	>	for (ExecutionMode m : executionModes)
1302	>	{
1303	>	final Noop r = new Noop(m);
1304	>	final CompletableFuture<Void> f = m.runAsync(r);
1305	>	assertNull(f.join());
1306	>	checkCompletedNormally(f, null);
1307	>	r.assertInvoked();
1308	>	}}
1309
1310		/**
1311	<	* thenAccept result completes normally after normal completion of source
1311	>	* failing runAsync completes exceptionally after running Runnable
1312		*/
1313	<	public void testThenAccept() {
1314	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1315	<	IncAction r = new IncAction();
1316	<	CompletableFuture<Void> g = f.thenAccept(r);
1317	<	f.complete(one);
1318	<	checkCompletedNormally(g, null);
1319	<	assertEquals(r.value, 2);
1313	>	public void testRunAsync_exceptionalCompletion() {
1314	>	ExecutionMode[] executionModes = {
1315	>	ExecutionMode.ASYNC,
1316	>	ExecutionMode.EXECUTOR,
1317	>	};
1318	>	for (ExecutionMode m : executionModes)
1319	>	{
1320	>	final FailingRunnable r = new FailingRunnable(m);
1321	>	final CompletableFuture<Void> f = m.runAsync(r);
1322	>	checkCompletedWithWrappedException(f, r.ex);
1323	>	r.assertInvoked();
1324	>	}}
1325	>
1326	>	@SuppressWarnings("FutureReturnValueIgnored")
1327	>	public void testRunAsync_rejectingExecutor() {
1328	>	CountingRejectingExecutor e = new CountingRejectingExecutor();
1329	>	try {
1330	>	CompletableFuture.runAsync(() -> {}, e);
1331	>	shouldThrow();
1332	>	} catch (Throwable t) {
1333	>	assertSame(e.ex, t);
1334	>	}
1335	>
1336	>	assertEquals(1, e.count.get());
1337		}
1338
1339		/**
1340	<	* thenAccept result completes exceptionally after exceptional
662	<	* completion of source
1340	>	* supplyAsync completes with result of supplier
1341		*/
1342	<	public void testThenAccept2() {
1343	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1344	<	IncAction r = new IncAction();
1345	<	CompletableFuture<Void> g = f.thenAccept(r);
1346	<	f.completeExceptionally(new CFException());
1347	<	checkCompletedWithWrappedCFException(g);
1348	<	}
1342	>	public void testSupplyAsync_normalCompletion() {
1343	>	ExecutionMode[] executionModes = {
1344	>	ExecutionMode.ASYNC,
1345	>	ExecutionMode.EXECUTOR,
1346	>	};
1347	>	for (ExecutionMode m : executionModes)
1348	>	for (Integer v1 : new Integer[] { 1, null })
1349	>	{
1350	>	final IntegerSupplier r = new IntegerSupplier(m, v1);
1351	>	final CompletableFuture<Integer> f = m.supplyAsync(r);
1352	>	assertSame(v1, f.join());
1353	>	checkCompletedNormally(f, v1);
1354	>	r.assertInvoked();
1355	>	}}
1356
1357		/**
1358	<	* thenAccept result completes exceptionally if action does
1358	>	* Failing supplyAsync completes exceptionally
1359		*/
1360	<	public void testThenAccept3() {
1361	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1362	<	FailingConsumer r = new FailingConsumer();
1363	<	CompletableFuture<Void> g = f.thenAccept(r);
1364	<	f.complete(one);
1365	<	checkCompletedWithWrappedCFException(g);
1366	<	assertTrue(r.ran);
1360	>	public void testSupplyAsync_exceptionalCompletion() {
1361	>	ExecutionMode[] executionModes = {
1362	>	ExecutionMode.ASYNC,
1363	>	ExecutionMode.EXECUTOR,
1364	>	};
1365	>	for (ExecutionMode m : executionModes)
1366	>	{
1367	>	FailingSupplier r = new FailingSupplier(m);
1368	>	CompletableFuture<Integer> f = m.supplyAsync(r);
1369	>	checkCompletedWithWrappedException(f, r.ex);
1370	>	r.assertInvoked();
1371	>	}}
1372	>
1373	>	@SuppressWarnings("FutureReturnValueIgnored")
1374	>	public void testSupplyAsync_rejectingExecutor() {
1375	>	CountingRejectingExecutor e = new CountingRejectingExecutor();
1376	>	try {
1377	>	CompletableFuture.supplyAsync(() -> null, e);
1378	>	shouldThrow();
1379	>	} catch (Throwable t) {
1380	>	assertSame(e.ex, t);
1381	>	}
1382	>
1383	>	assertEquals(1, e.count.get());
1384		}
1385
1386	+	// seq completion methods
1387	+
1388		/**
1389	<	* thenAccept result completes exceptionally if source cancelled
1389	>	* thenRun result completes normally after normal completion of source
1390		*/
1391	<	public void testThenAccept4() {
1392	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1393	<	IncAction r = new IncAction();
1394	<	CompletableFuture<Void> g = f.thenAccept(r);
1395	<	assertTrue(f.cancel(true));
1396	<	checkCompletedWithWrappedCancellationException(g);
1397	<	}
1391	>	public void testThenRun_normalCompletion() {
1392	>	for (ExecutionMode m : ExecutionMode.values())
1393	>	for (Integer v1 : new Integer[] { 1, null })
1394	>	{
1395	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1396	>	final Noop[] rs = new Noop[6];
1397	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1398	>
1399	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1400	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1401	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1402	>	checkIncomplete(h0);
1403	>	checkIncomplete(h1);
1404	>	checkIncomplete(h2);
1405	>	assertTrue(f.complete(v1));
1406	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1407	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1408	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1409	>
1410	>	checkCompletedNormally(h0, null);
1411	>	checkCompletedNormally(h1, null);
1412	>	checkCompletedNormally(h2, null);
1413	>	checkCompletedNormally(h3, null);
1414	>	checkCompletedNormally(h4, null);
1415	>	checkCompletedNormally(h5, null);
1416	>	checkCompletedNormally(f, v1);
1417	>	for (Noop r : rs) r.assertInvoked();
1418	>	}}
1419
1420		/**
1421	<	* thenCombine result completes normally after normal completion
1422	<	* of sources
1421	>	* thenRun result completes exceptionally after exceptional
1422	>	* completion of source
1423		*/
1424	<	public void testThenCombine() {
1425	<	CompletableFuture<Integer> f, g, h;
1424	>	public void testThenRun_exceptionalCompletion() {
1425	>	for (ExecutionMode m : ExecutionMode.values())
1426	>	{
1427	>	final CFException ex = new CFException();
1428	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1429	>	final Noop[] rs = new Noop[6];
1430	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1431
1432	<	f = new CompletableFuture<>();
1433	<	g = new CompletableFuture<>();
1434	<	h = f.thenCombine(g, subtract);
1435	<	f.complete(3);
1436	<	checkIncomplete(h);
1437	<	g.complete(1);
1438	<	checkCompletedNormally(h, 2);
1432	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1433	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1434	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1435	>	checkIncomplete(h0);
1436	>	checkIncomplete(h1);
1437	>	checkIncomplete(h2);
1438	>	assertTrue(f.completeExceptionally(ex));
1439	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1440	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1441	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1442	>
1443	>	checkCompletedWithWrappedException(h0, ex);
1444	>	checkCompletedWithWrappedException(h1, ex);
1445	>	checkCompletedWithWrappedException(h2, ex);
1446	>	checkCompletedWithWrappedException(h3, ex);
1447	>	checkCompletedWithWrappedException(h4, ex);
1448	>	checkCompletedWithWrappedException(h5, ex);
1449	>	checkCompletedExceptionally(f, ex);
1450	>	for (Noop r : rs) r.assertNotInvoked();
1451	>	}}
1452
1453	<	f = new CompletableFuture<>();
1454	<	g = new CompletableFuture<>();
1455	<	h = f.thenCombine(g, subtract);
1456	<	g.complete(1);
1457	<	checkIncomplete(h);
1458	<	f.complete(3);
1459	<	checkCompletedNormally(h, 2);
1453	>	/**
1454	>	* thenRun result completes exceptionally if source cancelled
1455	>	*/
1456	>	public void testThenRun_sourceCancelled() {
1457	>	for (ExecutionMode m : ExecutionMode.values())
1458	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1459	>	{
1460	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1461	>	final Noop[] rs = new Noop[6];
1462	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1463
1464	<	f = new CompletableFuture<>();
1465	<	g = new CompletableFuture<>();
1466	<	g.complete(1);
1467	<	f.complete(3);
1468	<	h = f.thenCombine(g, subtract);
1469	<	checkCompletedNormally(h, 2);
1470	<	}
1464	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1465	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1466	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1467	>	checkIncomplete(h0);
1468	>	checkIncomplete(h1);
1469	>	checkIncomplete(h2);
1470	>	assertTrue(f.cancel(mayInterruptIfRunning));
1471	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1472	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1473	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1474	>
1475	>	checkCompletedWithWrappedCancellationException(h0);
1476	>	checkCompletedWithWrappedCancellationException(h1);
1477	>	checkCompletedWithWrappedCancellationException(h2);
1478	>	checkCompletedWithWrappedCancellationException(h3);
1479	>	checkCompletedWithWrappedCancellationException(h4);
1480	>	checkCompletedWithWrappedCancellationException(h5);
1481	>	checkCancelled(f);
1482	>	for (Noop r : rs) r.assertNotInvoked();
1483	>	}}
1484
1485		/**
1486	<	* thenCombine result completes exceptionally after exceptional
728	<	* completion of either source
1486	>	* thenRun result completes exceptionally if action does
1487		*/
1488	<	public void testThenCombine2() {
1489	<	CompletableFuture<Integer> f, g, h;
1490	<
1491	<	f = new CompletableFuture<>();
1492	<	g = new CompletableFuture<>();
1493	<	h = f.thenCombine(g, subtract);
1494	<	f.completeExceptionally(new CFException());
737	<	checkIncomplete(h);
738	<	g.complete(1);
739	<	checkCompletedWithWrappedCFException(h);
1488	>	public void testThenRun_actionFailed() {
1489	>	for (ExecutionMode m : ExecutionMode.values())
1490	>	for (Integer v1 : new Integer[] { 1, null })
1491	>	{
1492	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1493	>	final FailingRunnable[] rs = new FailingRunnable[6];
1494	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingRunnable(m);
1495
1496	<	f = new CompletableFuture<>();
1497	<	g = new CompletableFuture<>();
1498	<	h = f.thenCombine(g, subtract);
1499	<	g.completeExceptionally(new CFException());
1500	<	checkIncomplete(h);
1501	<	f.complete(3);
1502	<	checkCompletedWithWrappedCFException(h);
1496	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1497	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1498	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1499	>	assertTrue(f.complete(v1));
1500	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1501	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1502	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1503	>
1504	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1505	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1506	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1507	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1508	>	checkCompletedWithWrappedException(h4, rs[4].ex);
1509	>	checkCompletedWithWrappedException(h5, rs[5].ex);
1510	>	checkCompletedNormally(f, v1);
1511	>	}}
1512
1513	<	f = new CompletableFuture<>();
1514	<	g = new CompletableFuture<>();
1515	<	f.complete(3);
1516	<	g.completeExceptionally(new CFException());
1517	<	h = f.thenCombine(g, subtract);
1518	<	checkCompletedWithWrappedCFException(h);
1513	>	/**
1514	>	* thenApply result completes normally after normal completion of source
1515	>	*/
1516	>	public void testThenApply_normalCompletion() {
1517	>	for (ExecutionMode m : ExecutionMode.values())
1518	>	for (Integer v1 : new Integer[] { 1, null })
1519	>	{
1520	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1521	>	final IncFunction[] rs = new IncFunction[4];
1522	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1523
1524	<	f = new CompletableFuture<>();
1525	<	g = new CompletableFuture<>();
1526	<	f.completeExceptionally(new CFException());
1527	<	g.complete(3);
1528	<	h = f.thenCombine(g, subtract);
1529	<	checkCompletedWithWrappedCFException(h);
1530	<	}
1524	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1525	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1526	>	checkIncomplete(h0);
1527	>	checkIncomplete(h1);
1528	>	assertTrue(f.complete(v1));
1529	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1530	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1531	>
1532	>	checkCompletedNormally(h0, inc(v1));
1533	>	checkCompletedNormally(h1, inc(v1));
1534	>	checkCompletedNormally(h2, inc(v1));
1535	>	checkCompletedNormally(h3, inc(v1));
1536	>	checkCompletedNormally(f, v1);
1537	>	for (IncFunction r : rs) r.assertValue(inc(v1));
1538	>	}}
1539
1540		/**
1541	<	* thenCombine result completes exceptionally if action does
1541	>	* thenApply result completes exceptionally after exceptional
1542	>	* completion of source
1543		*/
1544	<	public void testThenCombine3() {
1545	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1546	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1547	<	FailingBiFunction r = new FailingBiFunction();
1548	<	CompletableFuture<Integer> g = f.thenCombine(f2, r);
1549	<	f.complete(one);
1550	<	checkIncomplete(g);
1551	<	assertFalse(r.ran);
1552	<	f2.complete(two);
1553	<	checkCompletedWithWrappedCFException(g);
1554	<	assertTrue(r.ran);
1555	<	}
1544	>	public void testThenApply_exceptionalCompletion() {
1545	>	for (ExecutionMode m : ExecutionMode.values())
1546	>	{
1547	>	final CFException ex = new CFException();
1548	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1549	>	final IncFunction[] rs = new IncFunction[4];
1550	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1551	>
1552	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1553	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1554	>	assertTrue(f.completeExceptionally(ex));
1555	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1556	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1557	>
1558	>	checkCompletedWithWrappedException(h0, ex);
1559	>	checkCompletedWithWrappedException(h1, ex);
1560	>	checkCompletedWithWrappedException(h2, ex);
1561	>	checkCompletedWithWrappedException(h3, ex);
1562	>	checkCompletedExceptionally(f, ex);
1563	>	for (IncFunction r : rs) r.assertNotInvoked();
1564	>	}}
1565
1566		/**
1567	<	* thenCombine result completes exceptionally if either source cancelled
1567	>	* thenApply result completes exceptionally if source cancelled
1568		*/
1569	<	public void testThenCombine4() {
1570	<	CompletableFuture<Integer> f, g, h;
1571	<
1572	<	f = new CompletableFuture<>();
1573	<	g = new CompletableFuture<>();
1574	<	h = f.thenCombine(g, subtract);
1575	<	assertTrue(f.cancel(true));
790	<	checkIncomplete(h);
791	<	g.complete(1);
792	<	checkCompletedWithWrappedCancellationException(h);
1569	>	public void testThenApply_sourceCancelled() {
1570	>	for (ExecutionMode m : ExecutionMode.values())
1571	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1572	>	{
1573	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1574	>	final IncFunction[] rs = new IncFunction[4];
1575	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1576
1577	<	f = new CompletableFuture<>();
1578	<	g = new CompletableFuture<>();
1579	<	h = f.thenCombine(g, subtract);
1580	<	assertTrue(g.cancel(true));
1581	<	checkIncomplete(h);
799	<	f.complete(3);
800	<	checkCompletedWithWrappedCancellationException(h);
1577	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1578	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1579	>	assertTrue(f.cancel(mayInterruptIfRunning));
1580	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1581	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1582
1583	<	f = new CompletableFuture<>();
1584	<	g = new CompletableFuture<>();
1585	<	assertTrue(f.cancel(true));
1586	<	assertTrue(g.cancel(true));
1587	<	h = f.thenCombine(g, subtract);
1588	<	checkCompletedWithWrappedCancellationException(h);
1589	<	}
1583	>	checkCompletedWithWrappedCancellationException(h0);
1584	>	checkCompletedWithWrappedCancellationException(h1);
1585	>	checkCompletedWithWrappedCancellationException(h2);
1586	>	checkCompletedWithWrappedCancellationException(h3);
1587	>	checkCancelled(f);
1588	>	for (IncFunction r : rs) r.assertNotInvoked();
1589	>	}}
1590
1591		/**
1592	<	* thenAcceptBoth result completes normally after normal
812	<	* completion of sources
1592	>	* thenApply result completes exceptionally if action does
1593		*/
1594	<	public void testThenAcceptBoth() {
1595	<	CompletableFuture<Integer> f, g;
1596	<	CompletableFuture<Void> h;
1597	<	SubtractAction r;
1598	<
1599	<	f = new CompletableFuture<>();
1600	<	g = new CompletableFuture<>();
821	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
822	<	f.complete(3);
823	<	checkIncomplete(h);
824	<	g.complete(1);
825	<	checkCompletedNormally(h, null);
826	<	assertEquals(r.value, 2);
827	<
828	<	f = new CompletableFuture<>();
829	<	g = new CompletableFuture<>();
830	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
831	<	g.complete(1);
832	<	checkIncomplete(h);
833	<	f.complete(3);
834	<	checkCompletedNormally(h, null);
835	<	assertEquals(r.value, 2);
1594	>	public void testThenApply_actionFailed() {
1595	>	for (ExecutionMode m : ExecutionMode.values())
1596	>	for (Integer v1 : new Integer[] { 1, null })
1597	>	{
1598	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1599	>	final FailingFunction[] rs = new FailingFunction[4];
1600	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingFunction(m);
1601
1602	<	f = new CompletableFuture<>();
1603	<	g = new CompletableFuture<>();
1604	<	g.complete(1);
1605	<	f.complete(3);
1606	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
1607	<	checkCompletedNormally(h, null);
1608	<	assertEquals(r.value, 2);
1609	<	}
1602	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1603	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1604	>	assertTrue(f.complete(v1));
1605	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1606	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1607	>
1608	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1609	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1610	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1611	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1612	>	checkCompletedNormally(f, v1);
1613	>	}}
1614
1615		/**
1616	<	* thenAcceptBoth result completes exceptionally after exceptional
848	<	* completion of either source
1616	>	* thenAccept result completes normally after normal completion of source
1617		*/
1618	<	public void testThenAcceptBoth2() {
1619	<	CompletableFuture<Integer> f, g;
1620	<	CompletableFuture<Void> h;
1621	<	SubtractAction r;
1622	<
1623	<	f = new CompletableFuture<>();
1624	<	g = new CompletableFuture<>();
857	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
858	<	f.completeExceptionally(new CFException());
859	<	checkIncomplete(h);
860	<	g.complete(1);
861	<	checkCompletedWithWrappedCFException(h);
1618	>	public void testThenAccept_normalCompletion() {
1619	>	for (ExecutionMode m : ExecutionMode.values())
1620	>	for (Integer v1 : new Integer[] { 1, null })
1621	>	{
1622	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1623	>	final NoopConsumer[] rs = new NoopConsumer[4];
1624	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1625
1626	<	f = new CompletableFuture<>();
1627	<	g = new CompletableFuture<>();
1628	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
1629	<	g.completeExceptionally(new CFException());
1630	<	checkIncomplete(h);
1631	<	f.complete(3);
1632	<	checkCompletedWithWrappedCFException(h);
1626	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1627	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1628	>	checkIncomplete(h0);
1629	>	checkIncomplete(h1);
1630	>	assertTrue(f.complete(v1));
1631	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1632	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1633	>
1634	>	checkCompletedNormally(h0, null);
1635	>	checkCompletedNormally(h1, null);
1636	>	checkCompletedNormally(h2, null);
1637	>	checkCompletedNormally(h3, null);
1638	>	checkCompletedNormally(f, v1);
1639	>	for (NoopConsumer r : rs) r.assertValue(v1);
1640	>	}}
1641
1642	<	f = new CompletableFuture<>();
1643	<	g = new CompletableFuture<>();
1644	<	f.complete(3);
1645	<	g.completeExceptionally(new CFException());
1646	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
1647	<	checkCompletedWithWrappedCFException(h);
1642	>	/**
1643	>	* thenAccept result completes exceptionally after exceptional
1644	>	* completion of source
1645	>	*/
1646	>	public void testThenAccept_exceptionalCompletion() {
1647	>	for (ExecutionMode m : ExecutionMode.values())
1648	>	{
1649	>	final CFException ex = new CFException();
1650	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1651	>	final NoopConsumer[] rs = new NoopConsumer[4];
1652	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1653
1654	<	f = new CompletableFuture<>();
1655	<	g = new CompletableFuture<>();
1656	<	f.completeExceptionally(new CFException());
1657	<	g.complete(3);
1658	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
1659	<	checkCompletedWithWrappedCFException(h);
1660	<	}
1654	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1655	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1656	>	assertTrue(f.completeExceptionally(ex));
1657	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1658	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1659	>
1660	>	checkCompletedWithWrappedException(h0, ex);
1661	>	checkCompletedWithWrappedException(h1, ex);
1662	>	checkCompletedWithWrappedException(h2, ex);
1663	>	checkCompletedWithWrappedException(h3, ex);
1664	>	checkCompletedExceptionally(f, ex);
1665	>	for (NoopConsumer r : rs) r.assertNotInvoked();
1666	>	}}
1667
1668		/**
1669	<	* thenAcceptBoth result completes exceptionally if action does
1669	>	* thenAccept result completes exceptionally if source cancelled
1670		*/
1671	<	public void testThenAcceptBoth3() {
1672	<	CompletableFuture<Integer> f, g;
1673	<	CompletableFuture<Void> h;
1674	<	FailingBiConsumer r;
1671	>	public void testThenAccept_sourceCancelled() {
1672	>	for (ExecutionMode m : ExecutionMode.values())
1673	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1674	>	{
1675	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1676	>	final NoopConsumer[] rs = new NoopConsumer[4];
1677	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1678
1679	<	f = new CompletableFuture<>();
1680	<	g = new CompletableFuture<>();
1681	<	h = f.thenAcceptBoth(g, r = new FailingBiConsumer());
1682	<	f.complete(3);
1683	<	checkIncomplete(h);
899	<	g.complete(1);
900	<	checkCompletedWithWrappedCFException(h);
1679	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1680	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1681	>	assertTrue(f.cancel(mayInterruptIfRunning));
1682	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1683	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1684
1685	<	f = new CompletableFuture<>();
1686	<	g = new CompletableFuture<>();
1687	<	f.complete(3);
1688	<	g.complete(1);
1689	<	h = f.thenAcceptBoth(g, r = new FailingBiConsumer());
1690	<	checkCompletedWithWrappedCFException(h);
1691	<	}
1685	>	checkCompletedWithWrappedCancellationException(h0);
1686	>	checkCompletedWithWrappedCancellationException(h1);
1687	>	checkCompletedWithWrappedCancellationException(h2);
1688	>	checkCompletedWithWrappedCancellationException(h3);
1689	>	checkCancelled(f);
1690	>	for (NoopConsumer r : rs) r.assertNotInvoked();
1691	>	}}
1692
1693		/**
1694	<	* thenAcceptBoth result completes exceptionally if either source cancelled
1694	>	* thenAccept result completes exceptionally if action does
1695		*/
1696	<	public void testThenAcceptBoth4() {
1697	<	CompletableFuture<Integer> f, g;
1698	<	CompletableFuture<Void> h;
1699	<	SubtractAction r;
1696	>	public void testThenAccept_actionFailed() {
1697	>	for (ExecutionMode m : ExecutionMode.values())
1698	>	for (Integer v1 : new Integer[] { 1, null })
1699	>	{
1700	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1701	>	final FailingConsumer[] rs = new FailingConsumer[4];
1702	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingConsumer(m);
1703
1704	<	f = new CompletableFuture<>();
1705	<	g = new CompletableFuture<>();
1706	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
1707	<	assertTrue(f.cancel(true));
1708	<	checkIncomplete(h);
1709	<	g.complete(1);
1710	<	checkCompletedWithWrappedCancellationException(h);
1704	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1705	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1706	>	assertTrue(f.complete(v1));
1707	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1708	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1709	>
1710	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1711	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1712	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1713	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1714	>	checkCompletedNormally(f, v1);
1715	>	}}
1716
1717	<	f = new CompletableFuture<>();
1718	<	g = new CompletableFuture<>();
1719	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
1720	<	assertTrue(g.cancel(true));
1721	<	checkIncomplete(h);
1722	<	f.complete(3);
1723	<	checkCompletedWithWrappedCancellationException(h);
1717	>	/**
1718	>	* thenCombine result completes normally after normal completion
1719	>	* of sources
1720	>	*/
1721	>	public void testThenCombine_normalCompletion() {
1722	>	for (ExecutionMode m : ExecutionMode.values())
1723	>	for (boolean fFirst : new boolean[] { true, false })
1724	>	for (Integer v1 : new Integer[] { 1, null })
1725	>	for (Integer v2 : new Integer[] { 2, null })
1726	>	{
1727	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1728	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1729	>	final SubtractFunction[] rs = new SubtractFunction[6];
1730	>	for (int i = 0; i < rs.length; i++) rs[i] = new SubtractFunction(m);
1731
1732	<	f = new CompletableFuture<>();
1733	<	g = new CompletableFuture<>();
1734	<	f.complete(3);
1735	<	assertTrue(g.cancel(true));
1736	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
1737	<	checkCompletedWithWrappedCancellationException(h);
1732	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1733	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1734	>	final Integer w1 =  fFirst ? v1 : v2;
1735	>	final Integer w2 = !fFirst ? v1 : v2;
1736	>
1737	>	final CompletableFuture<Integer> h0 = m.thenCombine(f, g, rs[0]);
1738	>	final CompletableFuture<Integer> h1 = m.thenCombine(fst, fst, rs[1]);
1739	>	assertTrue(fst.complete(w1));
1740	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, rs[2]);
1741	>	final CompletableFuture<Integer> h3 = m.thenCombine(fst, fst, rs[3]);
1742	>	checkIncomplete(h0); rs[0].assertNotInvoked();
1743	>	checkIncomplete(h2); rs[2].assertNotInvoked();
1744	>	checkCompletedNormally(h1, subtract(w1, w1));
1745	>	checkCompletedNormally(h3, subtract(w1, w1));
1746	>	rs[1].assertValue(subtract(w1, w1));
1747	>	rs[3].assertValue(subtract(w1, w1));
1748	>	assertTrue(snd.complete(w2));
1749	>	final CompletableFuture<Integer> h4 = m.thenCombine(f, g, rs[4]);
1750	>
1751	>	checkCompletedNormally(h0, subtract(v1, v2));
1752	>	checkCompletedNormally(h2, subtract(v1, v2));
1753	>	checkCompletedNormally(h4, subtract(v1, v2));
1754	>	rs[0].assertValue(subtract(v1, v2));
1755	>	rs[2].assertValue(subtract(v1, v2));
1756	>	rs[4].assertValue(subtract(v1, v2));
1757
1758	<	f = new CompletableFuture<>();
1759	<	g = new CompletableFuture<>();
1760	<	assertTrue(f.cancel(true));
944	<	g.complete(3);
945	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
946	<	checkCompletedWithWrappedCancellationException(h);
947	<	}
1758	>	checkCompletedNormally(f, v1);
1759	>	checkCompletedNormally(g, v2);
1760	>	}}
1761
1762		/**
1763	<	* Permits the testing of parallel code for the 3 different
1764	<	* execution modes without repeating all the testing code.
1763	>	* thenCombine result completes exceptionally after exceptional
1764	>	* completion of either source
1765		*/
1766	<	enum ExecutionMode {
1767	<	DEFAULT {
1768	<	public <T,U> CompletableFuture<Void> runAfterBoth
1769	<	(CompletableFuture<T> f, CompletableFuture<U> g, Runnable r) {
1770	<	return f.runAfterBoth(g, r);
1771	<	}
1772	<	},
1773	<
1774	<	DEFAULT_ASYNC {
1775	<	public <T,U> CompletableFuture<Void> runAfterBoth
1776	<	(CompletableFuture<T> f, CompletableFuture<U> g, Runnable r) {
1777	<	return f.runAfterBothAsync(g, r);
1778	<	}
1779	<	},
1766	>	public void testThenCombine_exceptionalCompletion() throws Throwable {
1767	>	for (ExecutionMode m : ExecutionMode.values())
1768	>	for (boolean fFirst : new boolean[] { true, false })
1769	>	for (boolean failFirst : new boolean[] { true, false })
1770	>	for (Integer v1 : new Integer[] { 1, null })
1771	>	{
1772	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1773	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1774	>	final CFException ex = new CFException();
1775	>	final SubtractFunction r1 = new SubtractFunction(m);
1776	>	final SubtractFunction r2 = new SubtractFunction(m);
1777	>	final SubtractFunction r3 = new SubtractFunction(m);
1778	>
1779	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1780	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1781	>	final Callable<Boolean> complete1 = failFirst ?
1782	>	() -> fst.completeExceptionally(ex) :
1783	>	() -> fst.complete(v1);
1784	>	final Callable<Boolean> complete2 = failFirst ?
1785	>	() -> snd.complete(v1) :
1786	>	() -> snd.completeExceptionally(ex);
1787	>
1788	>	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1789	>	assertTrue(complete1.call());
1790	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1791	>	checkIncomplete(h1);
1792	>	checkIncomplete(h2);
1793	>	assertTrue(complete2.call());
1794	>	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1795	>
1796	>	checkCompletedWithWrappedException(h1, ex);
1797	>	checkCompletedWithWrappedException(h2, ex);
1798	>	checkCompletedWithWrappedException(h3, ex);
1799	>	r1.assertNotInvoked();
1800	>	r2.assertNotInvoked();
1801	>	r3.assertNotInvoked();
1802	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1803	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
1804	>	}}
1805
1806	<	EXECUTOR {
1807	<	public <T,U> CompletableFuture<Void> runAfterBoth
1808	<	(CompletableFuture<T> f, CompletableFuture<U> g, Runnable r) {
1809	<	return f.runAfterBothAsync(g, r, new ThreadExecutor());
1810	<	}
1811	<	};
1806	>	/**
1807	>	* thenCombine result completes exceptionally if either source cancelled
1808	>	*/
1809	>	public void testThenCombine_sourceCancelled() throws Throwable {
1810	>	for (ExecutionMode m : ExecutionMode.values())
1811	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1812	>	for (boolean fFirst : new boolean[] { true, false })
1813	>	for (boolean failFirst : new boolean[] { true, false })
1814	>	for (Integer v1 : new Integer[] { 1, null })
1815	>	{
1816	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1817	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1818	>	final SubtractFunction r1 = new SubtractFunction(m);
1819	>	final SubtractFunction r2 = new SubtractFunction(m);
1820	>	final SubtractFunction r3 = new SubtractFunction(m);
1821	>
1822	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1823	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1824	>	final Callable<Boolean> complete1 = failFirst ?
1825	>	() -> fst.cancel(mayInterruptIfRunning) :
1826	>	() -> fst.complete(v1);
1827	>	final Callable<Boolean> complete2 = failFirst ?
1828	>	() -> snd.complete(v1) :
1829	>	() -> snd.cancel(mayInterruptIfRunning);
1830	>
1831	>	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1832	>	assertTrue(complete1.call());
1833	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1834	>	checkIncomplete(h1);
1835	>	checkIncomplete(h2);
1836	>	assertTrue(complete2.call());
1837	>	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1838	>
1839	>	checkCompletedWithWrappedCancellationException(h1);
1840	>	checkCompletedWithWrappedCancellationException(h2);
1841	>	checkCompletedWithWrappedCancellationException(h3);
1842	>	r1.assertNotInvoked();
1843	>	r2.assertNotInvoked();
1844	>	r3.assertNotInvoked();
1845	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1846	>	checkCancelled(failFirst ? fst : snd);
1847	>	}}
1848
1849	<	public abstract <T,U> CompletableFuture<Void> runAfterBoth
1850	<	(CompletableFuture<T> f, CompletableFuture<U> g, Runnable r);
1851	<	}
1849	>	/**
1850	>	* thenCombine result completes exceptionally if action does
1851	>	*/
1852	>	public void testThenCombine_actionFailed() {
1853	>	for (ExecutionMode m : ExecutionMode.values())
1854	>	for (boolean fFirst : new boolean[] { true, false })
1855	>	for (Integer v1 : new Integer[] { 1, null })
1856	>	for (Integer v2 : new Integer[] { 2, null })
1857	>	{
1858	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1859	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1860	>	final FailingBiFunction r1 = new FailingBiFunction(m);
1861	>	final FailingBiFunction r2 = new FailingBiFunction(m);
1862	>	final FailingBiFunction r3 = new FailingBiFunction(m);
1863	>
1864	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1865	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1866	>	final Integer w1 =  fFirst ? v1 : v2;
1867	>	final Integer w2 = !fFirst ? v1 : v2;
1868	>
1869	>	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1870	>	assertTrue(fst.complete(w1));
1871	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1872	>	assertTrue(snd.complete(w2));
1873	>	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1874	>
1875	>	checkCompletedWithWrappedException(h1, r1.ex);
1876	>	checkCompletedWithWrappedException(h2, r2.ex);
1877	>	checkCompletedWithWrappedException(h3, r3.ex);
1878	>	r1.assertInvoked();
1879	>	r2.assertInvoked();
1880	>	r3.assertInvoked();
1881	>	checkCompletedNormally(f, v1);
1882	>	checkCompletedNormally(g, v2);
1883	>	}}
1884
1885		/**
1886	<	* runAfterBoth result completes normally after normal
1886	>	* thenAcceptBoth result completes normally after normal
1887		* completion of sources
1888		*/
1889	<	public void testRunAfterBoth_normalCompletion1() {
1889	>	public void testThenAcceptBoth_normalCompletion() {
1890		for (ExecutionMode m : ExecutionMode.values())
1891	+	for (boolean fFirst : new boolean[] { true, false })
1892		for (Integer v1 : new Integer[] { 1, null })
1893	<	for (Integer v2 : new Integer[] { 2, null }) {
1894	<
1893	>	for (Integer v2 : new Integer[] { 2, null })
1894	>	{
1895		final CompletableFuture<Integer> f = new CompletableFuture<>();
1896		final CompletableFuture<Integer> g = new CompletableFuture<>();
1897	<	final Noop r = new Noop();
1898	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1899	<
1900	<	f.complete(v1);
1901	<	checkIncomplete(h);
1902	<	assertFalse(r.ran);
1903	<	g.complete(v2);
1904	<
1905	<	checkCompletedNormally(h, null);
1906	<	assertTrue(r.ran);
1897	>	final SubtractAction r1 = new SubtractAction(m);
1898	>	final SubtractAction r2 = new SubtractAction(m);
1899	>	final SubtractAction r3 = new SubtractAction(m);
1900	>
1901	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1902	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1903	>	final Integer w1 =  fFirst ? v1 : v2;
1904	>	final Integer w2 = !fFirst ? v1 : v2;
1905	>
1906	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1907	>	assertTrue(fst.complete(w1));
1908	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1909	>	checkIncomplete(h1);
1910	>	checkIncomplete(h2);
1911	>	r1.assertNotInvoked();
1912	>	r2.assertNotInvoked();
1913	>	assertTrue(snd.complete(w2));
1914	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1915	>
1916	>	checkCompletedNormally(h1, null);
1917	>	checkCompletedNormally(h2, null);
1918	>	checkCompletedNormally(h3, null);
1919	>	r1.assertValue(subtract(v1, v2));
1920	>	r2.assertValue(subtract(v1, v2));
1921	>	r3.assertValue(subtract(v1, v2));
1922		checkCompletedNormally(f, v1);
1923		checkCompletedNormally(g, v2);
1924	<	}
1003	<	}
1924	>	}}
1925
1926	<	public void testRunAfterBoth_normalCompletion2() {
1926	>	/**
1927	>	* thenAcceptBoth result completes exceptionally after exceptional
1928	>	* completion of either source
1929	>	*/
1930	>	public void testThenAcceptBoth_exceptionalCompletion() throws Throwable {
1931		for (ExecutionMode m : ExecutionMode.values())
1932	+	for (boolean fFirst : new boolean[] { true, false })
1933	+	for (boolean failFirst : new boolean[] { true, false })
1934		for (Integer v1 : new Integer[] { 1, null })
1935	<	for (Integer v2 : new Integer[] { 2, null }) {
1009	<
1935	>	{
1936		final CompletableFuture<Integer> f = new CompletableFuture<>();
1937		final CompletableFuture<Integer> g = new CompletableFuture<>();
1938	<	final Noop r = new Noop();
1939	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1938	>	final CFException ex = new CFException();
1939	>	final SubtractAction r1 = new SubtractAction(m);
1940	>	final SubtractAction r2 = new SubtractAction(m);
1941	>	final SubtractAction r3 = new SubtractAction(m);
1942	>
1943	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1944	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1945	>	final Callable<Boolean> complete1 = failFirst ?
1946	>	() -> fst.completeExceptionally(ex) :
1947	>	() -> fst.complete(v1);
1948	>	final Callable<Boolean> complete2 = failFirst ?
1949	>	() -> snd.complete(v1) :
1950	>	() -> snd.completeExceptionally(ex);
1951	>
1952	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1953	>	assertTrue(complete1.call());
1954	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1955	>	checkIncomplete(h1);
1956	>	checkIncomplete(h2);
1957	>	assertTrue(complete2.call());
1958	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1959	>
1960	>	checkCompletedWithWrappedException(h1, ex);
1961	>	checkCompletedWithWrappedException(h2, ex);
1962	>	checkCompletedWithWrappedException(h3, ex);
1963	>	r1.assertNotInvoked();
1964	>	r2.assertNotInvoked();
1965	>	r3.assertNotInvoked();
1966	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1967	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
1968	>	}}
1969
1970	<	g.complete(v2);
1971	<	checkIncomplete(h);
1972	<	assertFalse(r.ran);
1973	<	f.complete(v1);
1970	>	/**
1971	>	* thenAcceptBoth result completes exceptionally if either source cancelled
1972	>	*/
1973	>	public void testThenAcceptBoth_sourceCancelled() throws Throwable {
1974	>	for (ExecutionMode m : ExecutionMode.values())
1975	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1976	>	for (boolean fFirst : new boolean[] { true, false })
1977	>	for (boolean failFirst : new boolean[] { true, false })
1978	>	for (Integer v1 : new Integer[] { 1, null })
1979	>	{
1980	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1981	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1982	>	final SubtractAction r1 = new SubtractAction(m);
1983	>	final SubtractAction r2 = new SubtractAction(m);
1984	>	final SubtractAction r3 = new SubtractAction(m);
1985	>
1986	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1987	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1988	>	final Callable<Boolean> complete1 = failFirst ?
1989	>	() -> fst.cancel(mayInterruptIfRunning) :
1990	>	() -> fst.complete(v1);
1991	>	final Callable<Boolean> complete2 = failFirst ?
1992	>	() -> snd.complete(v1) :
1993	>	() -> snd.cancel(mayInterruptIfRunning);
1994	>
1995	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1996	>	assertTrue(complete1.call());
1997	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1998	>	checkIncomplete(h1);
1999	>	checkIncomplete(h2);
2000	>	assertTrue(complete2.call());
2001	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
2002	>
2003	>	checkCompletedWithWrappedCancellationException(h1);
2004	>	checkCompletedWithWrappedCancellationException(h2);
2005	>	checkCompletedWithWrappedCancellationException(h3);
2006	>	r1.assertNotInvoked();
2007	>	r2.assertNotInvoked();
2008	>	r3.assertNotInvoked();
2009	>	checkCompletedNormally(failFirst ? snd : fst, v1);
2010	>	checkCancelled(failFirst ? fst : snd);
2011	>	}}
2012
2013	<	checkCompletedNormally(h, null);
2014	<	assertTrue(r.ran);
2013	>	/**
2014	>	* thenAcceptBoth result completes exceptionally if action does
2015	>	*/
2016	>	public void testThenAcceptBoth_actionFailed() {
2017	>	for (ExecutionMode m : ExecutionMode.values())
2018	>	for (boolean fFirst : new boolean[] { true, false })
2019	>	for (Integer v1 : new Integer[] { 1, null })
2020	>	for (Integer v2 : new Integer[] { 2, null })
2021	>	{
2022	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2023	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2024	>	final FailingBiConsumer r1 = new FailingBiConsumer(m);
2025	>	final FailingBiConsumer r2 = new FailingBiConsumer(m);
2026	>	final FailingBiConsumer r3 = new FailingBiConsumer(m);
2027	>
2028	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2029	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2030	>	final Integer w1 =  fFirst ? v1 : v2;
2031	>	final Integer w2 = !fFirst ? v1 : v2;
2032	>
2033	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
2034	>	assertTrue(fst.complete(w1));
2035	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
2036	>	assertTrue(snd.complete(w2));
2037	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
2038	>
2039	>	checkCompletedWithWrappedException(h1, r1.ex);
2040	>	checkCompletedWithWrappedException(h2, r2.ex);
2041	>	checkCompletedWithWrappedException(h3, r3.ex);
2042	>	r1.assertInvoked();
2043	>	r2.assertInvoked();
2044	>	r3.assertInvoked();
2045		checkCompletedNormally(f, v1);
2046		checkCompletedNormally(g, v2);
2047	<	}
1025	<	}
2047	>	}}
2048
2049	<	public void testRunAfterBoth_normalCompletion3() {
2049	>	/**
2050	>	* runAfterBoth result completes normally after normal
2051	>	* completion of sources
2052	>	*/
2053	>	public void testRunAfterBoth_normalCompletion() {
2054		for (ExecutionMode m : ExecutionMode.values())
2055	+	for (boolean fFirst : new boolean[] { true, false })
2056		for (Integer v1 : new Integer[] { 1, null })
2057	<	for (Integer v2 : new Integer[] { 2, null }) {
2057	>	for (Integer v2 : new Integer[] { 2, null })
2058	>	{
2059	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2060	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2061	>	final Noop r1 = new Noop(m);
2062	>	final Noop r2 = new Noop(m);
2063	>	final Noop r3 = new Noop(m);
2064	>
2065	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2066	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2067	>	final Integer w1 =  fFirst ? v1 : v2;
2068	>	final Integer w2 = !fFirst ? v1 : v2;
2069	>
2070	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2071	>	assertTrue(fst.complete(w1));
2072	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2073	>	checkIncomplete(h1);
2074	>	checkIncomplete(h2);
2075	>	r1.assertNotInvoked();
2076	>	r2.assertNotInvoked();
2077	>	assertTrue(snd.complete(w2));
2078	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2079	>
2080	>	checkCompletedNormally(h1, null);
2081	>	checkCompletedNormally(h2, null);
2082	>	checkCompletedNormally(h3, null);
2083	>	r1.assertInvoked();
2084	>	r2.assertInvoked();
2085	>	r3.assertInvoked();
2086	>	checkCompletedNormally(f, v1);
2087	>	checkCompletedNormally(g, v2);
2088	>	}}
2089
2090	+	/**
2091	+	* runAfterBoth result completes exceptionally after exceptional
2092	+	* completion of either source
2093	+	*/
2094	+	public void testRunAfterBoth_exceptionalCompletion() throws Throwable {
2095	+	for (ExecutionMode m : ExecutionMode.values())
2096	+	for (boolean fFirst : new boolean[] { true, false })
2097	+	for (boolean failFirst : new boolean[] { true, false })
2098	+	for (Integer v1 : new Integer[] { 1, null })
2099	+	{
2100		final CompletableFuture<Integer> f = new CompletableFuture<>();
2101		final CompletableFuture<Integer> g = new CompletableFuture<>();
2102	<	final Noop r = new Noop();
2102	>	final CFException ex = new CFException();
2103	>	final Noop r1 = new Noop(m);
2104	>	final Noop r2 = new Noop(m);
2105	>	final Noop r3 = new Noop(m);
2106	>
2107	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2108	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2109	>	final Callable<Boolean> complete1 = failFirst ?
2110	>	() -> fst.completeExceptionally(ex) :
2111	>	() -> fst.complete(v1);
2112	>	final Callable<Boolean> complete2 = failFirst ?
2113	>	() -> snd.complete(v1) :
2114	>	() -> snd.completeExceptionally(ex);
2115	>
2116	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2117	>	assertTrue(complete1.call());
2118	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2119	>	checkIncomplete(h1);
2120	>	checkIncomplete(h2);
2121	>	assertTrue(complete2.call());
2122	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2123	>
2124	>	checkCompletedWithWrappedException(h1, ex);
2125	>	checkCompletedWithWrappedException(h2, ex);
2126	>	checkCompletedWithWrappedException(h3, ex);
2127	>	r1.assertNotInvoked();
2128	>	r2.assertNotInvoked();
2129	>	r3.assertNotInvoked();
2130	>	checkCompletedNormally(failFirst ? snd : fst, v1);
2131	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
2132	>	}}
2133
2134	<	g.complete(v2);
2135	<	f.complete(v1);
2136	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
2134	>	/**
2135	>	* runAfterBoth result completes exceptionally if either source cancelled
2136	>	*/
2137	>	public void testRunAfterBoth_sourceCancelled() throws Throwable {
2138	>	for (ExecutionMode m : ExecutionMode.values())
2139	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2140	>	for (boolean fFirst : new boolean[] { true, false })
2141	>	for (boolean failFirst : new boolean[] { true, false })
2142	>	for (Integer v1 : new Integer[] { 1, null })
2143	>	{
2144	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2145	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2146	>	final Noop r1 = new Noop(m);
2147	>	final Noop r2 = new Noop(m);
2148	>	final Noop r3 = new Noop(m);
2149	>
2150	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2151	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2152	>	final Callable<Boolean> complete1 = failFirst ?
2153	>	() -> fst.cancel(mayInterruptIfRunning) :
2154	>	() -> fst.complete(v1);
2155	>	final Callable<Boolean> complete2 = failFirst ?
2156	>	() -> snd.complete(v1) :
2157	>	() -> snd.cancel(mayInterruptIfRunning);
2158	>
2159	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2160	>	assertTrue(complete1.call());
2161	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2162	>	checkIncomplete(h1);
2163	>	checkIncomplete(h2);
2164	>	assertTrue(complete2.call());
2165	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2166	>
2167	>	checkCompletedWithWrappedCancellationException(h1);
2168	>	checkCompletedWithWrappedCancellationException(h2);
2169	>	checkCompletedWithWrappedCancellationException(h3);
2170	>	r1.assertNotInvoked();
2171	>	r2.assertNotInvoked();
2172	>	r3.assertNotInvoked();
2173	>	checkCompletedNormally(failFirst ? snd : fst, v1);
2174	>	checkCancelled(failFirst ? fst : snd);
2175	>	}}
2176
2177	<	checkCompletedNormally(h, null);
2178	<	assertTrue(r.ran);
2177	>	/**
2178	>	* runAfterBoth result completes exceptionally if action does
2179	>	*/
2180	>	public void testRunAfterBoth_actionFailed() {
2181	>	for (ExecutionMode m : ExecutionMode.values())
2182	>	for (boolean fFirst : new boolean[] { true, false })
2183	>	for (Integer v1 : new Integer[] { 1, null })
2184	>	for (Integer v2 : new Integer[] { 2, null })
2185	>	{
2186	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2187	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2188	>	final FailingRunnable r1 = new FailingRunnable(m);
2189	>	final FailingRunnable r2 = new FailingRunnable(m);
2190	>	final FailingRunnable r3 = new FailingRunnable(m);
2191	>
2192	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2193	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2194	>	final Integer w1 =  fFirst ? v1 : v2;
2195	>	final Integer w2 = !fFirst ? v1 : v2;
2196	>
2197	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2198	>	assertTrue(fst.complete(w1));
2199	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2200	>	assertTrue(snd.complete(w2));
2201	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2202	>
2203	>	checkCompletedWithWrappedException(h1, r1.ex);
2204	>	checkCompletedWithWrappedException(h2, r2.ex);
2205	>	checkCompletedWithWrappedException(h3, r3.ex);
2206	>	r1.assertInvoked();
2207	>	r2.assertInvoked();
2208	>	r3.assertInvoked();
2209		checkCompletedNormally(f, v1);
2210		checkCompletedNormally(g, v2);
2211	<	}
1045	<	}
2211	>	}}
2212
2213	<	public void testRunAfterBoth_normalCompletion4() {
2213	>	/**
2214	>	* applyToEither result completes normally after normal completion
2215	>	* of either source
2216	>	*/
2217	>	public void testApplyToEither_normalCompletion() {
2218		for (ExecutionMode m : ExecutionMode.values())
2219		for (Integer v1 : new Integer[] { 1, null })
2220	<	for (Integer v2 : new Integer[] { 2, null }) {
2221	<
2220	>	for (Integer v2 : new Integer[] { 2, null })
2221	>	{
2222		final CompletableFuture<Integer> f = new CompletableFuture<>();
2223		final CompletableFuture<Integer> g = new CompletableFuture<>();
2224	<	final Noop r = new Noop();
2224	>	final IncFunction[] rs = new IncFunction[6];
2225	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2226
2227	+	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2228	+	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2229	+	checkIncomplete(h0);
2230	+	checkIncomplete(h1);
2231	+	rs[0].assertNotInvoked();
2232	+	rs[1].assertNotInvoked();
2233		f.complete(v1);
2234	+	checkCompletedNormally(h0, inc(v1));
2235	+	checkCompletedNormally(h1, inc(v1));
2236	+	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2237	+	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2238	+	checkCompletedNormally(h2, inc(v1));
2239	+	checkCompletedNormally(h3, inc(v1));
2240		g.complete(v2);
1058	–	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
2241
2242	<	checkCompletedNormally(h, null);
2243	<	assertTrue(r.ran);
2242	>	// unspecified behavior - both source completions available
2243	>	final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2244	>	final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2245	>	rs[4].assertValue(h4.join());
2246	>	rs[5].assertValue(h5.join());
2247	>	assertTrue(Objects.equals(inc(v1), h4.join()) ||
2248	>	Objects.equals(inc(v2), h4.join()));
2249	>	assertTrue(Objects.equals(inc(v1), h5.join()) ||
2250	>	Objects.equals(inc(v2), h5.join()));
2251	>
2252		checkCompletedNormally(f, v1);
2253		checkCompletedNormally(g, v2);
2254	<	}
2255	<	}
2254	>	checkCompletedNormally(h0, inc(v1));
2255	>	checkCompletedNormally(h1, inc(v1));
2256	>	checkCompletedNormally(h2, inc(v1));
2257	>	checkCompletedNormally(h3, inc(v1));
2258	>	for (int i = 0; i < 4; i++) rs[i].assertValue(inc(v1));
2259	>	}}
2260
2261		/**
2262	<	* runAfterBoth result completes exceptionally after exceptional
2262	>	* applyToEither result completes exceptionally after exceptional
2263		* completion of either source
2264		*/
2265	<	public void testRunAfterBoth_exceptionalCompletion1() {
2265	>	public void testApplyToEither_exceptionalCompletion() {
2266		for (ExecutionMode m : ExecutionMode.values())
2267	<	for (Integer v1 : new Integer[] { 1, null }) {
2268	<
2267	>	for (Integer v1 : new Integer[] { 1, null })
2268	>	{
2269		final CompletableFuture<Integer> f = new CompletableFuture<>();
2270		final CompletableFuture<Integer> g = new CompletableFuture<>();
1077	–	final Noop r = new Noop();
1078	–	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
2271		final CFException ex = new CFException();
2272	+	final IncFunction[] rs = new IncFunction[6];
2273	+	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2274
2275	+	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2276	+	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2277	+	checkIncomplete(h0);
2278	+	checkIncomplete(h1);
2279	+	rs[0].assertNotInvoked();
2280	+	rs[1].assertNotInvoked();
2281		f.completeExceptionally(ex);
2282	<	checkIncomplete(h);
2282	>	checkCompletedWithWrappedException(h0, ex);
2283	>	checkCompletedWithWrappedException(h1, ex);
2284	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2285	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2286	>	checkCompletedWithWrappedException(h2, ex);
2287	>	checkCompletedWithWrappedException(h3, ex);
2288		g.complete(v1);
2289
2290	<	checkCompletedWithWrappedCFException(h, ex);
2291	<	checkCompletedWithWrappedCFException(f, ex);
2292	<	assertFalse(r.ran);
2293	<	checkCompletedNormally(g, v1);
2290	>	// unspecified behavior - both source completions available
2291	>	final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2292	>	final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2293	>	try {
2294	>	assertEquals(inc(v1), h4.join());
2295	>	rs[4].assertValue(inc(v1));
2296	>	} catch (CompletionException ok) {
2297	>	checkCompletedWithWrappedException(h4, ex);
2298	>	rs[4].assertNotInvoked();
2299	>	}
2300	>	try {
2301	>	assertEquals(inc(v1), h5.join());
2302	>	rs[5].assertValue(inc(v1));
2303	>	} catch (CompletionException ok) {
2304	>	checkCompletedWithWrappedException(h5, ex);
2305	>	rs[5].assertNotInvoked();
2306		}
1090	–	}
2307
2308	<	public void testRunAfterBoth_exceptionalCompletion2() {
2309	<	for (ExecutionMode m : ExecutionMode.values())
2310	<	for (Integer v1 : new Integer[] { 1, null }) {
2308	>	checkCompletedExceptionally(f, ex);
2309	>	checkCompletedNormally(g, v1);
2310	>	checkCompletedWithWrappedException(h0, ex);
2311	>	checkCompletedWithWrappedException(h1, ex);
2312	>	checkCompletedWithWrappedException(h2, ex);
2313	>	checkCompletedWithWrappedException(h3, ex);
2314	>	checkCompletedWithWrappedException(h4, ex);
2315	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2316	>	}}
2317
2318	+	public void testApplyToEither_exceptionalCompletion2() {
2319	+	for (ExecutionMode m : ExecutionMode.values())
2320	+	for (boolean fFirst : new boolean[] { true, false })
2321	+	for (Integer v1 : new Integer[] { 1, null })
2322	+	{
2323		final CompletableFuture<Integer> f = new CompletableFuture<>();
2324		final CompletableFuture<Integer> g = new CompletableFuture<>();
1098	–	final Noop r = new Noop();
1099	–	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
2325		final CFException ex = new CFException();
2326	+	final IncFunction[] rs = new IncFunction[6];
2327	+	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2328
2329	<	g.completeExceptionally(ex);
2330	<	checkIncomplete(h);
2331	<	f.complete(v1);
2329	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2330	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2331	>	assertTrue(fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2332	>	assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2333	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2334	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2335
2336	<	checkCompletedWithWrappedCFException(h, ex);
2337	<	checkCompletedWithWrappedCFException(g, ex);
2338	<	assertFalse(r.ran);
2339	<	checkCompletedNormally(f, v1);
2336	>	// unspecified behavior - both source completions available
2337	>	try {
2338	>	assertEquals(inc(v1), h0.join());
2339	>	rs[0].assertValue(inc(v1));
2340	>	} catch (CompletionException ok) {
2341	>	checkCompletedWithWrappedException(h0, ex);
2342	>	rs[0].assertNotInvoked();
2343	>	}
2344	>	try {
2345	>	assertEquals(inc(v1), h1.join());
2346	>	rs[1].assertValue(inc(v1));
2347	>	} catch (CompletionException ok) {
2348	>	checkCompletedWithWrappedException(h1, ex);
2349	>	rs[1].assertNotInvoked();
2350	>	}
2351	>	try {
2352	>	assertEquals(inc(v1), h2.join());
2353	>	rs[2].assertValue(inc(v1));
2354	>	} catch (CompletionException ok) {
2355	>	checkCompletedWithWrappedException(h2, ex);
2356	>	rs[2].assertNotInvoked();
2357	>	}
2358	>	try {
2359	>	assertEquals(inc(v1), h3.join());
2360	>	rs[3].assertValue(inc(v1));
2361	>	} catch (CompletionException ok) {
2362	>	checkCompletedWithWrappedException(h3, ex);
2363	>	rs[3].assertNotInvoked();
2364		}
1111	–	}
2365
2366	<	public void testRunAfterBoth_exceptionalCompletion3() {
2367	<	for (ExecutionMode m : ExecutionMode.values())
2368	<	for (Integer v1 : new Integer[] { 1, null }) {
2366	>	checkCompletedNormally(f, v1);
2367	>	checkCompletedExceptionally(g, ex);
2368	>	}}
2369
2370	+	/**
2371	+	* applyToEither result completes exceptionally if either source cancelled
2372	+	*/
2373	+	public void testApplyToEither_sourceCancelled() {
2374	+	for (ExecutionMode m : ExecutionMode.values())
2375	+	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2376	+	for (Integer v1 : new Integer[] { 1, null })
2377	+	{
2378		final CompletableFuture<Integer> f = new CompletableFuture<>();
2379		final CompletableFuture<Integer> g = new CompletableFuture<>();
2380	<	final Noop r = new Noop();
2381	<	final CFException ex = new CFException();
2380	>	final IncFunction[] rs = new IncFunction[6];
2381	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2382
2383	<	g.completeExceptionally(ex);
2384	<	f.complete(v1);
2385	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
2383	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2384	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2385	>	checkIncomplete(h0);
2386	>	checkIncomplete(h1);
2387	>	rs[0].assertNotInvoked();
2388	>	rs[1].assertNotInvoked();
2389	>	f.cancel(mayInterruptIfRunning);
2390	>	checkCompletedWithWrappedCancellationException(h0);
2391	>	checkCompletedWithWrappedCancellationException(h1);
2392	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2393	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2394	>	checkCompletedWithWrappedCancellationException(h2);
2395	>	checkCompletedWithWrappedCancellationException(h3);
2396	>	g.complete(v1);
2397
2398	<	checkCompletedWithWrappedCFException(h, ex);
2399	<	checkCompletedWithWrappedCFException(g, ex);
2400	<	assertFalse(r.ran);
2401	<	checkCompletedNormally(f, v1);
2398	>	// unspecified behavior - both source completions available
2399	>	final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2400	>	final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2401	>	try {
2402	>	assertEquals(inc(v1), h4.join());
2403	>	rs[4].assertValue(inc(v1));
2404	>	} catch (CompletionException ok) {
2405	>	checkCompletedWithWrappedCancellationException(h4);
2406	>	rs[4].assertNotInvoked();
2407	>	}
2408	>	try {
2409	>	assertEquals(inc(v1), h5.join());
2410	>	rs[5].assertValue(inc(v1));
2411	>	} catch (CompletionException ok) {
2412	>	checkCompletedWithWrappedCancellationException(h5);
2413	>	rs[5].assertNotInvoked();
2414		}
1131	–	}
2415
2416	<	public void testRunAfterBoth_exceptionalCompletion4() {
2417	<	for (ExecutionMode m : ExecutionMode.values())
2418	<	for (Integer v1 : new Integer[] { 1, null }) {
2416	>	checkCancelled(f);
2417	>	checkCompletedNormally(g, v1);
2418	>	checkCompletedWithWrappedCancellationException(h0);
2419	>	checkCompletedWithWrappedCancellationException(h1);
2420	>	checkCompletedWithWrappedCancellationException(h2);
2421	>	checkCompletedWithWrappedCancellationException(h3);
2422	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2423	>	}}
2424
2425	+	public void testApplyToEither_sourceCancelled2() {
2426	+	for (ExecutionMode m : ExecutionMode.values())
2427	+	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2428	+	for (boolean fFirst : new boolean[] { true, false })
2429	+	for (Integer v1 : new Integer[] { 1, null })
2430	+	{
2431		final CompletableFuture<Integer> f = new CompletableFuture<>();
2432		final CompletableFuture<Integer> g = new CompletableFuture<>();
2433	<	final Noop r = new Noop();
2434	<	final CFException ex = new CFException();
2433	>	final IncFunction[] rs = new IncFunction[6];
2434	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2435
2436	<	f.completeExceptionally(ex);
2437	<	g.complete(v1);
2438	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
2436	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2437	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2438	>	assertTrue(fFirst ? f.complete(v1) : g.cancel(mayInterruptIfRunning));
2439	>	assertTrue(!fFirst ? f.complete(v1) : g.cancel(mayInterruptIfRunning));
2440	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2441	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2442
2443	<	checkCompletedWithWrappedCFException(h, ex);
2444	<	checkCompletedWithWrappedCFException(f, ex);
2445	<	assertFalse(r.ran);
2446	<	checkCompletedNormally(g, v1);
2443	>	// unspecified behavior - both source completions available
2444	>	try {
2445	>	assertEquals(inc(v1), h0.join());
2446	>	rs[0].assertValue(inc(v1));
2447	>	} catch (CompletionException ok) {
2448	>	checkCompletedWithWrappedCancellationException(h0);
2449	>	rs[0].assertNotInvoked();
2450		}
2451	<	}
2451	>	try {
2452	>	assertEquals(inc(v1), h1.join());
2453	>	rs[1].assertValue(inc(v1));
2454	>	} catch (CompletionException ok) {
2455	>	checkCompletedWithWrappedCancellationException(h1);
2456	>	rs[1].assertNotInvoked();
2457	>	}
2458	>	try {
2459	>	assertEquals(inc(v1), h2.join());
2460	>	rs[2].assertValue(inc(v1));
2461	>	} catch (CompletionException ok) {
2462	>	checkCompletedWithWrappedCancellationException(h2);
2463	>	rs[2].assertNotInvoked();
2464	>	}
2465	>	try {
2466	>	assertEquals(inc(v1), h3.join());
2467	>	rs[3].assertValue(inc(v1));
2468	>	} catch (CompletionException ok) {
2469	>	checkCompletedWithWrappedCancellationException(h3);
2470	>	rs[3].assertNotInvoked();
2471	>	}
2472	>
2473	>	checkCompletedNormally(f, v1);
2474	>	checkCancelled(g);
2475	>	}}
2476
2477		/**
2478	<	* runAfterBoth result completes exceptionally if action does
2478	>	* applyToEither result completes exceptionally if action does
2479		*/
2480	<	public void testRunAfterBoth_actionFailed1() {
2480	>	public void testApplyToEither_actionFailed() {
2481		for (ExecutionMode m : ExecutionMode.values())
2482		for (Integer v1 : new Integer[] { 1, null })
2483	<	for (Integer v2 : new Integer[] { 2, null }) {
2484	<
2483	>	for (Integer v2 : new Integer[] { 2, null })
2484	>	{
2485		final CompletableFuture<Integer> f = new CompletableFuture<>();
2486		final CompletableFuture<Integer> g = new CompletableFuture<>();
2487	<	final FailingNoop r = new FailingNoop();
2488	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
2487	>	final FailingFunction[] rs = new FailingFunction[6];
2488	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingFunction(m);
2489
2490	+	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2491	+	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2492		f.complete(v1);
2493	<	checkIncomplete(h);
2493	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2494	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2495	>	checkCompletedWithWrappedException(h0, rs[0].ex);
2496	>	checkCompletedWithWrappedException(h1, rs[1].ex);
2497	>	checkCompletedWithWrappedException(h2, rs[2].ex);
2498	>	checkCompletedWithWrappedException(h3, rs[3].ex);
2499	>	for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2500	>
2501		g.complete(v2);
2502
2503	<	checkCompletedWithWrappedCFException(h);
2503	>	// unspecified behavior - both source completions available
2504	>	final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2505	>	final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2506	>
2507	>	checkCompletedWithWrappedException(h4, rs[4].ex);
2508	>	assertTrue(Objects.equals(v1, rs[4].value) ||
2509	>	Objects.equals(v2, rs[4].value));
2510	>	checkCompletedWithWrappedException(h5, rs[5].ex);
2511	>	assertTrue(Objects.equals(v1, rs[5].value) ||
2512	>	Objects.equals(v2, rs[5].value));
2513	>
2514		checkCompletedNormally(f, v1);
2515		checkCompletedNormally(g, v2);
2516	<	}
1174	<	}
2516	>	}}
2517
2518	<	public void testRunAfterBoth_actionFailed2() {
2518	>	/**
2519	>	* acceptEither result completes normally after normal completion
2520	>	* of either source
2521	>	*/
2522	>	public void testAcceptEither_normalCompletion() {
2523		for (ExecutionMode m : ExecutionMode.values())
2524		for (Integer v1 : new Integer[] { 1, null })
2525	<	for (Integer v2 : new Integer[] { 2, null }) {
2526	<
2525	>	for (Integer v2 : new Integer[] { 2, null })
2526	>	{
2527		final CompletableFuture<Integer> f = new CompletableFuture<>();
2528		final CompletableFuture<Integer> g = new CompletableFuture<>();
2529	<	final FailingNoop r = new FailingNoop();
2530	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
2529	>	final NoopConsumer[] rs = new NoopConsumer[6];
2530	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2531
2532	<	g.complete(v2);
2533	<	checkIncomplete(h);
2532	>	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2533	>	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2534	>	checkIncomplete(h0);
2535	>	checkIncomplete(h1);
2536	>	rs[0].assertNotInvoked();
2537	>	rs[1].assertNotInvoked();
2538		f.complete(v1);
2539	+	checkCompletedNormally(h0, null);
2540	+	checkCompletedNormally(h1, null);
2541	+	rs[0].assertValue(v1);
2542	+	rs[1].assertValue(v1);
2543	+	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2544	+	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2545	+	checkCompletedNormally(h2, null);
2546	+	checkCompletedNormally(h3, null);
2547	+	rs[2].assertValue(v1);
2548	+	rs[3].assertValue(v1);
2549	+	g.complete(v2);
2550	+
2551	+	// unspecified behavior - both source completions available
2552	+	final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2553	+	final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2554	+	checkCompletedNormally(h4, null);
2555	+	checkCompletedNormally(h5, null);
2556	+	assertTrue(Objects.equals(v1, rs[4].value) ||
2557	+	Objects.equals(v2, rs[4].value));
2558	+	assertTrue(Objects.equals(v1, rs[5].value) ||
2559	+	Objects.equals(v2, rs[5].value));
2560
1190	–	checkCompletedWithWrappedCFException(h);
2561		checkCompletedNormally(f, v1);
2562		checkCompletedNormally(g, v2);
2563	<	}
2564	<	}
2563	>	checkCompletedNormally(h0, null);
2564	>	checkCompletedNormally(h1, null);
2565	>	checkCompletedNormally(h2, null);
2566	>	checkCompletedNormally(h3, null);
2567	>	for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2568	>	}}
2569
2570		/**
2571	<	* runAfterBoth result completes exceptionally if either source cancelled
2571	>	* acceptEither result completes exceptionally after exceptional
2572	>	* completion of either source
2573		*/
2574	<	public void testRunAfterBoth_sourceCancelled1() {
2574	>	public void testAcceptEither_exceptionalCompletion() {
2575		for (ExecutionMode m : ExecutionMode.values())
2576	<	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2577	<	for (Integer v1 : new Integer[] { 1, null }) {
1203	<
2576	>	for (Integer v1 : new Integer[] { 1, null })
2577	>	{
2578		final CompletableFuture<Integer> f = new CompletableFuture<>();
2579		final CompletableFuture<Integer> g = new CompletableFuture<>();
2580	<	final Noop r = new Noop();
2581	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
2580	>	final CFException ex = new CFException();
2581	>	final NoopConsumer[] rs = new NoopConsumer[6];
2582	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2583	>
2584	>	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2585	>	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2586	>	checkIncomplete(h0);
2587	>	checkIncomplete(h1);
2588	>	rs[0].assertNotInvoked();
2589	>	rs[1].assertNotInvoked();
2590	>	f.completeExceptionally(ex);
2591	>	checkCompletedWithWrappedException(h0, ex);
2592	>	checkCompletedWithWrappedException(h1, ex);
2593	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2594	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2595	>	checkCompletedWithWrappedException(h2, ex);
2596	>	checkCompletedWithWrappedException(h3, ex);
2597
1209	–	assertTrue(f.cancel(mayInterruptIfRunning));
1210	–	checkIncomplete(h);
2598		g.complete(v1);
2599
2600	<	checkCompletedWithWrappedCancellationException(h);
2601	<	checkCancelled(f);
2602	<	assertFalse(r.ran);
2603	<	checkCompletedNormally(g, v1);
2600	>	// unspecified behavior - both source completions available
2601	>	final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2602	>	final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2603	>	try {
2604	>	assertNull(h4.join());
2605	>	rs[4].assertValue(v1);
2606	>	} catch (CompletionException ok) {
2607	>	checkCompletedWithWrappedException(h4, ex);
2608	>	rs[4].assertNotInvoked();
2609	>	}
2610	>	try {
2611	>	assertNull(h5.join());
2612	>	rs[5].assertValue(v1);
2613	>	} catch (CompletionException ok) {
2614	>	checkCompletedWithWrappedException(h5, ex);
2615	>	rs[5].assertNotInvoked();
2616		}
1218	–	}
2617
2618	<	public void testRunAfterBoth_sourceCancelled2() {
2619	<	for (ExecutionMode m : ExecutionMode.values())
2620	<	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2621	<	for (Integer v1 : new Integer[] { 1, null }) {
2618	>	checkCompletedExceptionally(f, ex);
2619	>	checkCompletedNormally(g, v1);
2620	>	checkCompletedWithWrappedException(h0, ex);
2621	>	checkCompletedWithWrappedException(h1, ex);
2622	>	checkCompletedWithWrappedException(h2, ex);
2623	>	checkCompletedWithWrappedException(h3, ex);
2624	>	checkCompletedWithWrappedException(h4, ex);
2625	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2626	>	}}
2627
2628	+	public void testAcceptEither_exceptionalCompletion2() {
2629	+	for (ExecutionMode m : ExecutionMode.values())
2630	+	for (boolean fFirst : new boolean[] { true, false })
2631	+	for (Integer v1 : new Integer[] { 1, null })
2632	+	{
2633		final CompletableFuture<Integer> f = new CompletableFuture<>();
2634		final CompletableFuture<Integer> g = new CompletableFuture<>();
2635	<	final Noop r = new Noop();
2636	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
2635	>	final CFException ex = new CFException();
2636	>	final NoopConsumer[] rs = new NoopConsumer[6];
2637	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2638
2639	<	assertTrue(g.cancel(mayInterruptIfRunning));
2640	<	checkIncomplete(h);
2641	<	f.complete(v1);
2639	>	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2640	>	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2641	>	assertTrue(fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2642	>	assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2643	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2644	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2645
2646	<	checkCompletedWithWrappedCancellationException(h);
2647	<	checkCancelled(g);
2648	<	assertFalse(r.ran);
2649	<	checkCompletedNormally(f, v1);
2646	>	// unspecified behavior - both source completions available
2647	>	try {
2648	>	assertNull(h0.join());
2649	>	rs[0].assertValue(v1);
2650	>	} catch (CompletionException ok) {
2651	>	checkCompletedWithWrappedException(h0, ex);
2652	>	rs[0].assertNotInvoked();
2653	>	}
2654	>	try {
2655	>	assertNull(h1.join());
2656	>	rs[1].assertValue(v1);
2657	>	} catch (CompletionException ok) {
2658	>	checkCompletedWithWrappedException(h1, ex);
2659	>	rs[1].assertNotInvoked();
2660	>	}
2661	>	try {
2662	>	assertNull(h2.join());
2663	>	rs[2].assertValue(v1);
2664	>	} catch (CompletionException ok) {
2665	>	checkCompletedWithWrappedException(h2, ex);
2666	>	rs[2].assertNotInvoked();
2667	>	}
2668	>	try {
2669	>	assertNull(h3.join());
2670	>	rs[3].assertValue(v1);
2671	>	} catch (CompletionException ok) {
2672	>	checkCompletedWithWrappedException(h3, ex);
2673	>	rs[3].assertNotInvoked();
2674		}
1239	–	}
1240	–
1241	–	public void testRunAfterBoth_sourceCancelled3() {
1242	–	for (ExecutionMode m : ExecutionMode.values())
1243	–	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1244	–	for (Integer v1 : new Integer[] { 1, null }) {
1245	–
1246	–	final CompletableFuture<Integer> f = new CompletableFuture<>();
1247	–	final CompletableFuture<Integer> g = new CompletableFuture<>();
1248	–	final Noop r = new Noop();
1249	–
1250	–	assertTrue(g.cancel(mayInterruptIfRunning));
1251	–	f.complete(v1);
1252	–	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
2675
1254	–	checkCompletedWithWrappedCancellationException(h);
1255	–	checkCancelled(g);
1256	–	assertFalse(r.ran);
2676		checkCompletedNormally(f, v1);
2677	<	}
2678	<	}
2677	>	checkCompletedExceptionally(g, ex);
2678	>	}}
2679
2680	<	public void testRunAfterBoth_sourceCancelled4() {
2680	>	/**
2681	>	* acceptEither result completes exceptionally if either source cancelled
2682	>	*/
2683	>	public void testAcceptEither_sourceCancelled() {
2684		for (ExecutionMode m : ExecutionMode.values())
2685		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2686	<	for (Integer v1 : new Integer[] { 1, null }) {
2687	<
2686	>	for (Integer v1 : new Integer[] { 1, null })
2687	>	{
2688		final CompletableFuture<Integer> f = new CompletableFuture<>();
2689		final CompletableFuture<Integer> g = new CompletableFuture<>();
2690	<	final Noop r = new Noop();
2690	>	final NoopConsumer[] rs = new NoopConsumer[6];
2691	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2692	>
2693	>	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2694	>	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2695	>	checkIncomplete(h0);
2696	>	checkIncomplete(h1);
2697	>	rs[0].assertNotInvoked();
2698	>	rs[1].assertNotInvoked();
2699	>	f.cancel(mayInterruptIfRunning);
2700	>	checkCompletedWithWrappedCancellationException(h0);
2701	>	checkCompletedWithWrappedCancellationException(h1);
2702	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2703	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2704	>	checkCompletedWithWrappedCancellationException(h2);
2705	>	checkCompletedWithWrappedCancellationException(h3);
2706
1270	–	assertTrue(f.cancel(mayInterruptIfRunning));
2707		g.complete(v1);
1272	–	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
2708
2709	<	checkCompletedWithWrappedCancellationException(h);
2709	>	// unspecified behavior - both source completions available
2710	>	final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2711	>	final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2712	>	try {
2713	>	assertNull(h4.join());
2714	>	rs[4].assertValue(v1);
2715	>	} catch (CompletionException ok) {
2716	>	checkCompletedWithWrappedCancellationException(h4);
2717	>	rs[4].assertNotInvoked();
2718	>	}
2719	>	try {
2720	>	assertNull(h5.join());
2721	>	rs[5].assertValue(v1);
2722	>	} catch (CompletionException ok) {
2723	>	checkCompletedWithWrappedCancellationException(h5);
2724	>	rs[5].assertNotInvoked();
2725	>	}
2726	>
2727		checkCancelled(f);
1276	–	assertFalse(r.ran);
2728		checkCompletedNormally(g, v1);
2729	<	}
2730	<	}
2729	>	checkCompletedWithWrappedCancellationException(h0);
2730	>	checkCompletedWithWrappedCancellationException(h1);
2731	>	checkCompletedWithWrappedCancellationException(h2);
2732	>	checkCompletedWithWrappedCancellationException(h3);
2733	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2734	>	}}
2735
2736		/**
2737	<	* applyToEither result completes normally after normal completion
1283	<	* of either source
2737	>	* acceptEither result completes exceptionally if action does
2738		*/
2739	<	public void testApplyToEither() {
2740	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2741	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2742	<	CompletableFuture<Integer> g = f.applyToEither(f2, inc);
2743	<	f.complete(one);
2744	<	checkCompletedNormally(g, two);
2745	<	f2.complete(one);
2746	<	checkCompletedNormally(g, two);
2747	<
1294	<	f = new CompletableFuture<>();
1295	<	f.complete(one);
1296	<	f2 = new CompletableFuture<>();
1297	<	g = f.applyToEither(f2, inc);
1298	<	checkCompletedNormally(g, two);
1299	<	}
2739	>	public void testAcceptEither_actionFailed() {
2740	>	for (ExecutionMode m : ExecutionMode.values())
2741	>	for (Integer v1 : new Integer[] { 1, null })
2742	>	for (Integer v2 : new Integer[] { 2, null })
2743	>	{
2744	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2745	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2746	>	final FailingConsumer[] rs = new FailingConsumer[6];
2747	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingConsumer(m);
2748
2749	<	/**
2750	<	* applyToEither result completes exceptionally after exceptional
2751	<	* completion of either source
2752	<	*/
2753	<	public void testApplyToEither2() {
2754	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2755	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2756	<	CompletableFuture<Integer> g = f.applyToEither(f2, inc);
2757	<	f.completeExceptionally(new CFException());
2758	<	f2.complete(one);
1311	<	checkCompletedWithWrappedCFException(g);
2749	>	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2750	>	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2751	>	f.complete(v1);
2752	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2753	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2754	>	checkCompletedWithWrappedException(h0, rs[0].ex);
2755	>	checkCompletedWithWrappedException(h1, rs[1].ex);
2756	>	checkCompletedWithWrappedException(h2, rs[2].ex);
2757	>	checkCompletedWithWrappedException(h3, rs[3].ex);
2758	>	for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2759
2760	<	f = new CompletableFuture<>();
1314	<	f2 = new CompletableFuture<>();
1315	<	f2.completeExceptionally(new CFException());
1316	<	g = f.applyToEither(f2, inc);
1317	<	checkCompletedWithWrappedCFException(g);
1318	<	}
2760	>	g.complete(v2);
2761
2762	<	/**
2763	<	* applyToEither result completes exceptionally if action does
2764	<	*/
2765	<	public void testApplyToEither3() {
2766	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2767	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2768	<	FailingFunction r = new FailingFunction();
2769	<	CompletableFuture<Integer> g = f.applyToEither(f2, r);
2770	<	f2.complete(two);
2771	<	checkCompletedWithWrappedCFException(g);
1330	<	}
2762	>	// unspecified behavior - both source completions available
2763	>	final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2764	>	final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2765	>
2766	>	checkCompletedWithWrappedException(h4, rs[4].ex);
2767	>	assertTrue(Objects.equals(v1, rs[4].value) ||
2768	>	Objects.equals(v2, rs[4].value));
2769	>	checkCompletedWithWrappedException(h5, rs[5].ex);
2770	>	assertTrue(Objects.equals(v1, rs[5].value) ||
2771	>	Objects.equals(v2, rs[5].value));
2772
2773	<	/**
2774	<	* applyToEither result completes exceptionally if either source cancelled
2775	<	*/
1335	<	public void testApplyToEither4() {
1336	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1337	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1338	<	CompletableFuture<Integer> g = f.applyToEither(f2, inc);
1339	<	assertTrue(f.cancel(true));
1340	<	checkCompletedWithWrappedCancellationException(g);
1341	<	f = new CompletableFuture<>();
1342	<	f2 = new CompletableFuture<>();
1343	<	assertTrue(f2.cancel(true));
1344	<	checkCompletedWithWrappedCancellationException(g);
1345	<	}
2773	>	checkCompletedNormally(f, v1);
2774	>	checkCompletedNormally(g, v2);
2775	>	}}
2776
2777		/**
2778	<	* acceptEither result completes normally after normal completion
2778	>	* runAfterEither result completes normally after normal completion
2779		* of either source
2780		*/
2781	<	public void testAcceptEither() {
2782	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2783	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2784	<	IncAction r = new IncAction();
2785	<	CompletableFuture<Void> g = f.acceptEither(f2, r);
2786	<	f.complete(one);
2787	<	checkCompletedNormally(g, null);
2788	<	f2.complete(one);
2789	<	checkCompletedNormally(g, null);
2790	<	assertEquals(r.value, 2);
2781	>	public void testRunAfterEither_normalCompletion() {
2782	>	for (ExecutionMode m : ExecutionMode.values())
2783	>	for (Integer v1 : new Integer[] { 1, null })
2784	>	for (Integer v2 : new Integer[] { 2, null })
2785	>	for (boolean pushNop : new boolean[] { true, false })
2786	>	{
2787	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2788	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2789	>	final Noop[] rs = new Noop[6];
2790	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2791
2792	<	r = new IncAction();
2793	<	f = new CompletableFuture<>();
2794	<	f.complete(one);
2795	<	f2 = new CompletableFuture<>();
2796	<	g = f.acceptEither(f2, r);
2797	<	checkCompletedNormally(g, null);
2798	<	assertEquals(r.value, 2);
2799	<	}
2792	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2793	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2794	>	checkIncomplete(h0);
2795	>	checkIncomplete(h1);
2796	>	rs[0].assertNotInvoked();
2797	>	rs[1].assertNotInvoked();
2798	>	if (pushNop) {          // ad hoc test of intra-completion interference
2799	>	m.thenRun(f, () -> {});
2800	>	m.thenRun(g, () -> {});
2801	>	}
2802	>	f.complete(v1);
2803	>	checkCompletedNormally(h0, null);
2804	>	checkCompletedNormally(h1, null);
2805	>	rs[0].assertInvoked();
2806	>	rs[1].assertInvoked();
2807	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2808	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2809	>	checkCompletedNormally(h2, null);
2810	>	checkCompletedNormally(h3, null);
2811	>	rs[2].assertInvoked();
2812	>	rs[3].assertInvoked();
2813	>
2814	>	g.complete(v2);
2815	>
2816	>	final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2817	>	final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2818	>
2819	>	checkCompletedNormally(f, v1);
2820	>	checkCompletedNormally(g, v2);
2821	>	checkCompletedNormally(h0, null);
2822	>	checkCompletedNormally(h1, null);
2823	>	checkCompletedNormally(h2, null);
2824	>	checkCompletedNormally(h3, null);
2825	>	checkCompletedNormally(h4, null);
2826	>	checkCompletedNormally(h5, null);
2827	>	for (int i = 0; i < 6; i++) rs[i].assertInvoked();
2828	>	}}
2829
2830		/**
2831	<	* acceptEither result completes exceptionally after exceptional
2831	>	* runAfterEither result completes exceptionally after exceptional
2832		* completion of either source
2833		*/
2834	<	public void testAcceptEither2() {
2835	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2836	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2837	<	IncAction r = new IncAction();
2838	<	CompletableFuture<Void> g = f.acceptEither(f2, r);
2839	<	f.completeExceptionally(new CFException());
2840	<	f2.complete(one);
2841	<	checkCompletedWithWrappedCFException(g);
2834	>	public void testRunAfterEither_exceptionalCompletion() {
2835	>	for (ExecutionMode m : ExecutionMode.values())
2836	>	for (Integer v1 : new Integer[] { 1, null })
2837	>	{
2838	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2839	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2840	>	final CFException ex = new CFException();
2841	>	final Noop[] rs = new Noop[6];
2842	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2843
2844	<	r = new IncAction();
2845	<	f = new CompletableFuture<>();
2846	<	f2 = new CompletableFuture<>();
2847	<	f2.completeExceptionally(new CFException());
2848	<	g = f.acceptEither(f2, r);
2849	<	checkCompletedWithWrappedCFException(g);
2850	<	}
2844	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2845	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2846	>	checkIncomplete(h0);
2847	>	checkIncomplete(h1);
2848	>	rs[0].assertNotInvoked();
2849	>	rs[1].assertNotInvoked();
2850	>	assertTrue(f.completeExceptionally(ex));
2851	>	checkCompletedWithWrappedException(h0, ex);
2852	>	checkCompletedWithWrappedException(h1, ex);
2853	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2854	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2855	>	checkCompletedWithWrappedException(h2, ex);
2856	>	checkCompletedWithWrappedException(h3, ex);
2857	>
2858	>	assertTrue(g.complete(v1));
2859	>
2860	>	// unspecified behavior - both source completions available
2861	>	final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2862	>	final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2863	>	try {
2864	>	assertNull(h4.join());
2865	>	rs[4].assertInvoked();
2866	>	} catch (CompletionException ok) {
2867	>	checkCompletedWithWrappedException(h4, ex);
2868	>	rs[4].assertNotInvoked();
2869	>	}
2870	>	try {
2871	>	assertNull(h5.join());
2872	>	rs[5].assertInvoked();
2873	>	} catch (CompletionException ok) {
2874	>	checkCompletedWithWrappedException(h5, ex);
2875	>	rs[5].assertNotInvoked();
2876	>	}
2877
2878	<	/**
2879	<	* acceptEither result completes exceptionally if action does
2880	<	*/
2881	<	public void testAcceptEither3() {
2882	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2883	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2884	<	FailingConsumer r = new FailingConsumer();
2885	<	CompletableFuture<Void> g = f.acceptEither(f2, r);
2886	<	f2.complete(two);
1401	<	checkCompletedWithWrappedCFException(g);
1402	<	}
2878	>	checkCompletedExceptionally(f, ex);
2879	>	checkCompletedNormally(g, v1);
2880	>	checkCompletedWithWrappedException(h0, ex);
2881	>	checkCompletedWithWrappedException(h1, ex);
2882	>	checkCompletedWithWrappedException(h2, ex);
2883	>	checkCompletedWithWrappedException(h3, ex);
2884	>	checkCompletedWithWrappedException(h4, ex);
2885	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2886	>	}}
2887
2888	<	/**
2889	<	* acceptEither result completes exceptionally if either source cancelled
2890	<	*/
2891	<	public void testAcceptEither4() {
2892	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2893	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2894	<	IncAction r = new IncAction();
2895	<	CompletableFuture<Void> g = f.acceptEither(f2, r);
2896	<	assertTrue(f.cancel(true));
2897	<	checkCompletedWithWrappedCancellationException(g);
1414	<	f = new CompletableFuture<>();
1415	<	f2 = new CompletableFuture<>();
1416	<	assertTrue(f2.cancel(true));
1417	<	checkCompletedWithWrappedCancellationException(g);
1418	<	}
2888	>	public void testRunAfterEither_exceptionalCompletion2() {
2889	>	for (ExecutionMode m : ExecutionMode.values())
2890	>	for (boolean fFirst : new boolean[] { true, false })
2891	>	for (Integer v1 : new Integer[] { 1, null })
2892	>	{
2893	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2894	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2895	>	final CFException ex = new CFException();
2896	>	final Noop[] rs = new Noop[6];
2897	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2898
2899	<	/**
2900	<	* runAfterEither result completes normally after normal completion
2901	<	* of either source
2902	<	*/
2903	<	public void testRunAfterEither() {
2904	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1426	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1427	<	Noop r = new Noop();
1428	<	CompletableFuture<Void> g = f.runAfterEither(f2, r);
1429	<	f.complete(one);
1430	<	checkCompletedNormally(g, null);
1431	<	f2.complete(one);
1432	<	checkCompletedNormally(g, null);
1433	<	assertTrue(r.ran);
2899	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2900	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2901	>	assertTrue( fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2902	>	assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2903	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2904	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2905
2906	<	r = new Noop();
2907	<	f = new CompletableFuture<>();
2908	<	f.complete(one);
2909	<	f2 = new CompletableFuture<>();
2910	<	g = f.runAfterEither(f2, r);
2911	<	checkCompletedNormally(g, null);
2912	<	assertTrue(r.ran);
2913	<	}
2906	>	// unspecified behavior - both source completions available
2907	>	try {
2908	>	assertNull(h0.join());
2909	>	rs[0].assertInvoked();
2910	>	} catch (CompletionException ok) {
2911	>	checkCompletedWithWrappedException(h0, ex);
2912	>	rs[0].assertNotInvoked();
2913	>	}
2914	>	try {
2915	>	assertNull(h1.join());
2916	>	rs[1].assertInvoked();
2917	>	} catch (CompletionException ok) {
2918	>	checkCompletedWithWrappedException(h1, ex);
2919	>	rs[1].assertNotInvoked();
2920	>	}
2921	>	try {
2922	>	assertNull(h2.join());
2923	>	rs[2].assertInvoked();
2924	>	} catch (CompletionException ok) {
2925	>	checkCompletedWithWrappedException(h2, ex);
2926	>	rs[2].assertNotInvoked();
2927	>	}
2928	>	try {
2929	>	assertNull(h3.join());
2930	>	rs[3].assertInvoked();
2931	>	} catch (CompletionException ok) {
2932	>	checkCompletedWithWrappedException(h3, ex);
2933	>	rs[3].assertNotInvoked();
2934	>	}
2935	>
2936	>	checkCompletedNormally(f, v1);
2937	>	checkCompletedExceptionally(g, ex);
2938	>	}}
2939
2940		/**
2941	<	* runAfterEither result completes exceptionally after exceptional
1446	<	* completion of either source
2941	>	* runAfterEither result completes exceptionally if either source cancelled
2942		*/
2943	<	public void testRunAfterEither2() {
2944	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2945	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2946	<	Noop r = new Noop();
2947	<	CompletableFuture<Void> g = f.runAfterEither(f2, r);
2948	<	f.completeExceptionally(new CFException());
2949	<	f2.complete(one);
2950	<	checkCompletedWithWrappedCFException(g);
2943	>	public void testRunAfterEither_sourceCancelled() {
2944	>	for (ExecutionMode m : ExecutionMode.values())
2945	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2946	>	for (Integer v1 : new Integer[] { 1, null })
2947	>	{
2948	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2949	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2950	>	final Noop[] rs = new Noop[6];
2951	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2952
2953	<	r = new Noop();
2954	<	f = new CompletableFuture<>();
2955	<	f2 = new CompletableFuture<>();
2956	<	f2.completeExceptionally(new CFException());
2957	<	g = f.runAfterEither(f2, r);
2958	<	checkCompletedWithWrappedCFException(g);
2959	<	}
2953	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2954	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2955	>	checkIncomplete(h0);
2956	>	checkIncomplete(h1);
2957	>	rs[0].assertNotInvoked();
2958	>	rs[1].assertNotInvoked();
2959	>	f.cancel(mayInterruptIfRunning);
2960	>	checkCompletedWithWrappedCancellationException(h0);
2961	>	checkCompletedWithWrappedCancellationException(h1);
2962	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2963	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2964	>	checkCompletedWithWrappedCancellationException(h2);
2965	>	checkCompletedWithWrappedCancellationException(h3);
2966	>
2967	>	assertTrue(g.complete(v1));
2968	>
2969	>	// unspecified behavior - both source completions available
2970	>	final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2971	>	final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2972	>	try {
2973	>	assertNull(h4.join());
2974	>	rs[4].assertInvoked();
2975	>	} catch (CompletionException ok) {
2976	>	checkCompletedWithWrappedCancellationException(h4);
2977	>	rs[4].assertNotInvoked();
2978	>	}
2979	>	try {
2980	>	assertNull(h5.join());
2981	>	rs[5].assertInvoked();
2982	>	} catch (CompletionException ok) {
2983	>	checkCompletedWithWrappedCancellationException(h5);
2984	>	rs[5].assertNotInvoked();
2985	>	}
2986	>
2987	>	checkCancelled(f);
2988	>	checkCompletedNormally(g, v1);
2989	>	checkCompletedWithWrappedCancellationException(h0);
2990	>	checkCompletedWithWrappedCancellationException(h1);
2991	>	checkCompletedWithWrappedCancellationException(h2);
2992	>	checkCompletedWithWrappedCancellationException(h3);
2993	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2994	>	}}
2995
2996		/**
2997		* runAfterEither result completes exceptionally if action does
2998		*/
2999	<	public void testRunAfterEither3() {
3000	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3001	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3002	<	FailingNoop r = new FailingNoop();
3003	<	CompletableFuture<Void> g = f.runAfterEither(f2, r);
3004	<	f2.complete(two);
3005	<	checkCompletedWithWrappedCFException(g);
3006	<	}
2999	>	public void testRunAfterEither_actionFailed() {
3000	>	for (ExecutionMode m : ExecutionMode.values())
3001	>	for (Integer v1 : new Integer[] { 1, null })
3002	>	for (Integer v2 : new Integer[] { 2, null })
3003	>	{
3004	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
3005	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
3006	>	final FailingRunnable[] rs = new FailingRunnable[6];
3007	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingRunnable(m);
3008
3009	<	/**
3010	<	* runAfterEither result completes exceptionally if either source cancelled
3011	<	*/
3012	<	public void testRunAfterEither4() {
3013	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3014	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3015	<	Noop r = new Noop();
3016	<	CompletableFuture<Void> g = f.runAfterEither(f2, r);
3017	<	assertTrue(f.cancel(true));
3018	<	checkCompletedWithWrappedCancellationException(g);
3019	<	f = new CompletableFuture<>();
3020	<	f2 = new CompletableFuture<>();
3021	<	assertTrue(f2.cancel(true));
3022	<	checkCompletedWithWrappedCancellationException(g);
3023	<	}
3009	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
3010	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
3011	>	assertTrue(f.complete(v1));
3012	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
3013	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
3014	>	checkCompletedWithWrappedException(h0, rs[0].ex);
3015	>	checkCompletedWithWrappedException(h1, rs[1].ex);
3016	>	checkCompletedWithWrappedException(h2, rs[2].ex);
3017	>	checkCompletedWithWrappedException(h3, rs[3].ex);
3018	>	for (int i = 0; i < 4; i++) rs[i].assertInvoked();
3019	>	assertTrue(g.complete(v2));
3020	>	final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
3021	>	final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
3022	>	checkCompletedWithWrappedException(h4, rs[4].ex);
3023	>	checkCompletedWithWrappedException(h5, rs[5].ex);
3024	>
3025	>	checkCompletedNormally(f, v1);
3026	>	checkCompletedNormally(g, v2);
3027	>	for (int i = 0; i < 6; i++) rs[i].assertInvoked();
3028	>	}}
3029
3030		/**
3031		* thenCompose result completes normally after normal completion of source
3032		*/
3033	<	public void testThenCompose() {
3034	<	CompletableFuture<Integer> f, g;
3035	<	CompletableFutureInc r;
3036	<
3037	<	f = new CompletableFuture<>();
3038	<	g = f.thenCompose(r = new CompletableFutureInc());
3039	<	f.complete(one);
3040	<	checkCompletedNormally(g, two);
3041	<	assertTrue(r.ran);
3033	>	public void testThenCompose_normalCompletion() {
3034	>	for (ExecutionMode m : ExecutionMode.values())
3035	>	for (boolean createIncomplete : new boolean[] { true, false })
3036	>	for (Integer v1 : new Integer[] { 1, null })
3037	>	{
3038	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
3039	>	final CompletableFutureInc r = new CompletableFutureInc(m);
3040	>	if (!createIncomplete) assertTrue(f.complete(v1));
3041	>	final CompletableFuture<Integer> g = m.thenCompose(f, r);
3042	>	if (createIncomplete) assertTrue(f.complete(v1));
3043
3044	<	f = new CompletableFuture<>();
3045	<	f.complete(one);
3046	<	g = f.thenCompose(r = new CompletableFutureInc());
3047	<	checkCompletedNormally(g, two);
1510	<	assertTrue(r.ran);
1511	<	}
3044	>	checkCompletedNormally(g, inc(v1));
3045	>	checkCompletedNormally(f, v1);
3046	>	r.assertValue(v1);
3047	>	}}
3048
3049		/**
3050		* thenCompose result completes exceptionally after exceptional
3051		* completion of source
3052		*/
3053	<	public void testThenCompose2() {
3054	<	CompletableFuture<Integer> f, g;
3055	<	CompletableFutureInc r;
3056	<
3057	<	f = new CompletableFuture<>();
3058	<	g = f.thenCompose(r = new CompletableFutureInc());
3059	<	f.completeExceptionally(new CFException());
3060	<	checkCompletedWithWrappedCFException(g);
3061	<
3062	<	f = new CompletableFuture<>();
3063	<	f.completeExceptionally(new CFException());
3064	<	g = f.thenCompose(r = new CompletableFutureInc());
3065	<	checkCompletedWithWrappedCFException(g);
3066	<	}
3053	>	public void testThenCompose_exceptionalCompletion() {
3054	>	for (ExecutionMode m : ExecutionMode.values())
3055	>	for (boolean createIncomplete : new boolean[] { true, false })
3056	>	{
3057	>	final CFException ex = new CFException();
3058	>	final CompletableFutureInc r = new CompletableFutureInc(m);
3059	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
3060	>	if (!createIncomplete) f.completeExceptionally(ex);
3061	>	final CompletableFuture<Integer> g = m.thenCompose(f, r);
3062	>	if (createIncomplete) f.completeExceptionally(ex);
3063	>
3064	>	checkCompletedWithWrappedException(g, ex);
3065	>	checkCompletedExceptionally(f, ex);
3066	>	r.assertNotInvoked();
3067	>	}}
3068
3069		/**
3070		* thenCompose result completes exceptionally if action does
3071		*/
3072	<	public void testThenCompose3() {
3073	<	CompletableFuture<Integer> f, g;
3074	<	FailingCompletableFutureFunction r;
3075	<
3076	<	f = new CompletableFuture<>();
3077	<	g = f.thenCompose(r = new FailingCompletableFutureFunction());
3078	<	f.complete(one);
3079	<	checkCompletedWithWrappedCFException(g);
3072	>	public void testThenCompose_actionFailed() {
3073	>	for (ExecutionMode m : ExecutionMode.values())
3074	>	for (boolean createIncomplete : new boolean[] { true, false })
3075	>	for (Integer v1 : new Integer[] { 1, null })
3076	>	{
3077	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
3078	>	final FailingCompletableFutureFunction r
3079	>	= new FailingCompletableFutureFunction(m);
3080	>	if (!createIncomplete) assertTrue(f.complete(v1));
3081	>	final CompletableFuture<Integer> g = m.thenCompose(f, r);
3082	>	if (createIncomplete) assertTrue(f.complete(v1));
3083
3084	<	f = new CompletableFuture<>();
3085	<	f.complete(one);
3086	<	g = f.thenCompose(r = new FailingCompletableFutureFunction());
1547	<	checkCompletedWithWrappedCFException(g);
1548	<	}
3084	>	checkCompletedWithWrappedException(g, r.ex);
3085	>	checkCompletedNormally(f, v1);
3086	>	}}
3087
3088		/**
3089		* thenCompose result completes exceptionally if source cancelled
3090		*/
3091	<	public void testThenCompose4() {
3092	<	CompletableFuture<Integer> f, g;
3093	<	CompletableFutureInc r;
3094	<
3095	<	f = new CompletableFuture<>();
3096	<	g = f.thenCompose(r = new CompletableFutureInc());
3097	<	assertTrue(f.cancel(true));
3098	<	checkCompletedWithWrappedCancellationException(g);
3091	>	public void testThenCompose_sourceCancelled() {
3092	>	for (ExecutionMode m : ExecutionMode.values())
3093	>	for (boolean createIncomplete : new boolean[] { true, false })
3094	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3095	>	{
3096	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
3097	>	final CompletableFutureInc r = new CompletableFutureInc(m);
3098	>	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
3099	>	final CompletableFuture<Integer> g = m.thenCompose(f, r);
3100	>	if (createIncomplete) {
3101	>	checkIncomplete(g);
3102	>	assertTrue(f.cancel(mayInterruptIfRunning));
3103	>	}
3104
1562	–	f = new CompletableFuture<>();
1563	–	assertTrue(f.cancel(true));
1564	–	g = f.thenCompose(r = new CompletableFutureInc());
3105		checkCompletedWithWrappedCancellationException(g);
3106	<	}
3107	<
1568	<	// asyncs
3106	>	checkCancelled(f);
3107	>	}}
3108
3109		/**
3110	<	* thenRunAsync result completes normally after normal completion of source
3110	>	* thenCompose result completes exceptionally if the result of the action does
3111		*/
3112	<	public void testThenRunAsync() {
3113	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3114	<	Noop r = new Noop();
3115	<	CompletableFuture<Void> g = f.thenRunAsync(r);
3116	<	f.complete(null);
3117	<	checkCompletedNormally(g, null);
3112	>	public void testThenCompose_actionReturnsFailingFuture() {
3113	>	for (ExecutionMode m : ExecutionMode.values())
3114	>	for (int order = 0; order < 6; order++)
3115	>	for (Integer v1 : new Integer[] { 1, null })
3116	>	{
3117	>	final CFException ex = new CFException();
3118	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
3119	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
3120	>	final CompletableFuture<Integer> h;
3121	>	// Test all permutations of orders
3122	>	switch (order) {
3123	>	case 0:
3124	>	assertTrue(f.complete(v1));
3125	>	assertTrue(g.completeExceptionally(ex));
3126	>	h = m.thenCompose(f, (x -> g));
3127	>	break;
3128	>	case 1:
3129	>	assertTrue(f.complete(v1));
3130	>	h = m.thenCompose(f, (x -> g));
3131	>	assertTrue(g.completeExceptionally(ex));
3132	>	break;
3133	>	case 2:
3134	>	assertTrue(g.completeExceptionally(ex));
3135	>	assertTrue(f.complete(v1));
3136	>	h = m.thenCompose(f, (x -> g));
3137	>	break;
3138	>	case 3:
3139	>	assertTrue(g.completeExceptionally(ex));
3140	>	h = m.thenCompose(f, (x -> g));
3141	>	assertTrue(f.complete(v1));
3142	>	break;
3143	>	case 4:
3144	>	h = m.thenCompose(f, (x -> g));
3145	>	assertTrue(f.complete(v1));
3146	>	assertTrue(g.completeExceptionally(ex));
3147	>	break;
3148	>	case 5:
3149	>	h = m.thenCompose(f, (x -> g));
3150	>	assertTrue(f.complete(v1));
3151	>	assertTrue(g.completeExceptionally(ex));
3152	>	break;
3153	>	default: throw new AssertionError();
3154	>	}
3155
3156	<	// reordered version
3157	<	f = new CompletableFuture<>();
3158	<	f.complete(null);
3159	<	r = new Noop();
1584	<	g = f.thenRunAsync(r);
1585	<	checkCompletedNormally(g, null);
1586	<	}
3156	>	checkCompletedExceptionally(g, ex);
3157	>	checkCompletedWithWrappedException(h, ex);
3158	>	checkCompletedNormally(f, v1);
3159	>	}}
3160
3161		/**
3162	<	* thenRunAsync result completes exceptionally after exceptional
3162	>	* exceptionallyCompose result completes normally after normal
3163		* completion of source
3164		*/
3165	<	public void testThenRunAsync2() {
3166	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3167	<	Noop r = new Noop();
3168	<	CompletableFuture<Void> g = f.thenRunAsync(r);
3169	<	f.completeExceptionally(new CFException());
3170	<	try {
3171	<	g.join();
3172	<	shouldThrow();
3173	<	} catch (CompletionException success) {}
3174	<	checkCompletedWithWrappedCFException(g);
3175	<	}
3165	>	public void testExceptionallyCompose_normalCompletion() {
3166	>	for (ExecutionMode m : ExecutionMode.values())
3167	>	for (boolean createIncomplete : new boolean[] { true, false })
3168	>	for (Integer v1 : new Integer[] { 1, null })
3169	>	{
3170	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
3171	>	final ExceptionalCompletableFutureFunction r =
3172	>	new ExceptionalCompletableFutureFunction(m);
3173	>	if (!createIncomplete) assertTrue(f.complete(v1));
3174	>	final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r);
3175	>	if (createIncomplete) assertTrue(f.complete(v1));
3176	>
3177	>	checkCompletedNormally(f, v1);
3178	>	checkCompletedNormally(g, v1);
3179	>	r.assertNotInvoked();
3180	>	}}
3181
3182		/**
3183	<	* thenRunAsync result completes exceptionally if action does
3183	>	* exceptionallyCompose result completes normally after exceptional
3184	>	* completion of source
3185		*/
3186	<	public void testThenRunAsync3() {
3187	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3188	<	FailingNoop r = new FailingNoop();
3189	<	CompletableFuture<Void> g = f.thenRunAsync(r);
3190	<	f.complete(null);
3191	<	checkCompletedWithWrappedCFException(g);
3192	<	}
3186	>	public void testExceptionallyCompose_exceptionalCompletion() {
3187	>	for (ExecutionMode m : ExecutionMode.values())
3188	>	for (boolean createIncomplete : new boolean[] { true, false })
3189	>	{
3190	>	final CFException ex = new CFException();
3191	>	final ExceptionalCompletableFutureFunction r =
3192	>	new ExceptionalCompletableFutureFunction(m);
3193	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
3194	>	if (!createIncomplete) f.completeExceptionally(ex);
3195	>	final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r);
3196	>	if (createIncomplete) f.completeExceptionally(ex);
3197	>
3198	>	checkCompletedExceptionally(f, ex);
3199	>	checkCompletedNormally(g, r.value);
3200	>	r.assertInvoked();
3201	>	}}
3202
3203		/**
3204	<	* thenRunAsync result completes exceptionally if source cancelled
3204	>	* exceptionallyCompose completes exceptionally on exception if action does
3205		*/
3206	<	public void testThenRunAsync4() {
3207	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3208	<	Noop r = new Noop();
3209	<	CompletableFuture<Void> g = f.thenRunAsync(r);
3210	<	assertTrue(f.cancel(true));
3211	<	checkCompletedWithWrappedCancellationException(g);
3212	<	}
3206	>	public void testExceptionallyCompose_actionFailed() {
3207	>	for (ExecutionMode m : ExecutionMode.values())
3208	>	for (boolean createIncomplete : new boolean[] { true, false })
3209	>	for (Integer v1 : new Integer[] { 1, null })
3210	>	{
3211	>	final CFException ex = new CFException();
3212	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
3213	>	final FailingExceptionalCompletableFutureFunction r
3214	>	= new FailingExceptionalCompletableFutureFunction(m);
3215	>	if (!createIncomplete) f.completeExceptionally(ex);
3216	>	final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r);
3217	>	if (createIncomplete) f.completeExceptionally(ex);
3218	>
3219	>	checkCompletedExceptionally(f, ex);
3220	>	checkCompletedWithWrappedException(g, r.ex);
3221	>	r.assertInvoked();
3222	>	}}
3223	>
3224	>
3225	>	// other static methods
3226
3227		/**
3228	<	* thenApplyAsync result completes normally after normal completion of source
3228	>	* allOf(no component futures) returns a future completed normally
3229	>	* with the value null
3230		*/
3231	<	public void testThenApplyAsync() {
3232	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3233	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc);
1632	<	f.complete(one);
1633	<	checkCompletedNormally(g, two);
3231	>	public void testAllOf_empty() throws Exception {
3232	>	CompletableFuture<Void> f = CompletableFuture.allOf();
3233	>	checkCompletedNormally(f, null);
3234		}
3235
3236		/**
3237	<	* thenApplyAsync result completes exceptionally after exceptional
3238	<	* completion of source
3237	>	* allOf returns a future completed normally with the value null
3238	>	* when all components complete normally
3239		*/
3240	<	public void testThenApplyAsync2() {
3241	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3242	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc);
3243	<	f.completeExceptionally(new CFException());
3244	<	checkCompletedWithWrappedCFException(g);
3240	>	public void testAllOf_normal() throws Exception {
3241	>	for (int k = 1; k < 10; k++) {
3242	>	CompletableFuture<Integer>[] fs
3243	>	= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3244	>	for (int i = 0; i < k; i++)
3245	>	fs[i] = new CompletableFuture<>();
3246	>	CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3247	>	for (int i = 0; i < k; i++) {
3248	>	checkIncomplete(f);
3249	>	checkIncomplete(CompletableFuture.allOf(fs));
3250	>	fs[i].complete(one);
3251	>	}
3252	>	checkCompletedNormally(f, null);
3253	>	checkCompletedNormally(CompletableFuture.allOf(fs), null);
3254	>	}
3255		}
3256
3257	<	/**
3258	<	* thenApplyAsync result completes exceptionally if action does
3259	<	*/
3260	<	public void testThenApplyAsync3() {
3261	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3262	<	FailingFunction r = new FailingFunction();
3263	<	CompletableFuture<Integer> g = f.thenApplyAsync(r);
3264	<	f.complete(null);
3265	<	checkCompletedWithWrappedCFException(g);
3257	>	public void testAllOf_normal_backwards() throws Exception {
3258	>	for (int k = 1; k < 10; k++) {
3259	>	CompletableFuture<Integer>[] fs
3260	>	= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3261	>	for (int i = 0; i < k; i++)
3262	>	fs[i] = new CompletableFuture<>();
3263	>	CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3264	>	for (int i = k - 1; i >= 0; i--) {
3265	>	checkIncomplete(f);
3266	>	checkIncomplete(CompletableFuture.allOf(fs));
3267	>	fs[i].complete(one);
3268	>	}
3269	>	checkCompletedNormally(f, null);
3270	>	checkCompletedNormally(CompletableFuture.allOf(fs), null);
3271	>	}
3272		}
3273
3274	<	/**
3275	<	* thenApplyAsync result completes exceptionally if source cancelled
3276	<	*/
3277	<	public void testThenApplyAsync4() {
3278	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3279	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc);
3280	<	assertTrue(f.cancel(true));
3281	<	checkCompletedWithWrappedCancellationException(g);
3274	>	public void testAllOf_exceptional() throws Exception {
3275	>	for (int k = 1; k < 10; k++) {
3276	>	CompletableFuture<Integer>[] fs
3277	>	= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3278	>	CFException ex = new CFException();
3279	>	for (int i = 0; i < k; i++)
3280	>	fs[i] = new CompletableFuture<>();
3281	>	CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3282	>	for (int i = 0; i < k; i++) {
3283	>	checkIncomplete(f);
3284	>	checkIncomplete(CompletableFuture.allOf(fs));
3285	>	if (i != k / 2) {
3286	>	fs[i].complete(i);
3287	>	checkCompletedNormally(fs[i], i);
3288	>	} else {
3289	>	fs[i].completeExceptionally(ex);
3290	>	checkCompletedExceptionally(fs[i], ex);
3291	>	}
3292	>	}
3293	>	checkCompletedWithWrappedException(f, ex);
3294	>	checkCompletedWithWrappedException(CompletableFuture.allOf(fs), ex);
3295	>	}
3296		}
3297
3298		/**
3299	<	* thenAcceptAsync result completes normally after normal
1670	<	* completion of source
3299	>	* anyOf(no component futures) returns an incomplete future
3300		*/
3301	<	public void testThenAcceptAsync() {
3302	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3303	<	IncAction r = new IncAction();
3304	<	CompletableFuture<Void> g = f.thenAcceptAsync(r);
3305	<	f.complete(one);
3306	<	checkCompletedNormally(g, null);
3307	<	assertEquals(r.value, 2);
3308	<	}
3301	>	public void testAnyOf_empty() throws Exception {
3302	>	for (Integer v1 : new Integer[] { 1, null })
3303	>	{
3304	>	CompletableFuture<Object> f = CompletableFuture.anyOf();
3305	>	checkIncomplete(f);
3306	>
3307	>	f.complete(v1);
3308	>	checkCompletedNormally(f, v1);
3309	>	}}
3310
3311		/**
3312	<	* thenAcceptAsync result completes exceptionally after exceptional
3313	<	* completion of source
3312	>	* anyOf returns a future completed normally with a value when
3313	>	* a component future does
3314		*/
3315	<	public void testThenAcceptAsync2() {
3316	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3317	<	IncAction r = new IncAction();
3318	<	CompletableFuture<Void> g = f.thenAcceptAsync(r);
3319	<	f.completeExceptionally(new CFException());
3320	<	checkCompletedWithWrappedCFException(g);
3315	>	public void testAnyOf_normal() throws Exception {
3316	>	for (int k = 0; k < 10; k++) {
3317	>	CompletableFuture[] fs = new CompletableFuture[k];
3318	>	for (int i = 0; i < k; i++)
3319	>	fs[i] = new CompletableFuture<>();
3320	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3321	>	checkIncomplete(f);
3322	>	for (int i = 0; i < k; i++) {
3323	>	fs[i].complete(i);
3324	>	checkCompletedNormally(f, 0);
3325	>	int x = (int) CompletableFuture.anyOf(fs).join();
3326	>	assertTrue(0 <= x && x <= i);
3327	>	}
3328	>	}
3329	>	}
3330	>	public void testAnyOf_normal_backwards() throws Exception {
3331	>	for (int k = 0; k < 10; k++) {
3332	>	CompletableFuture[] fs = new CompletableFuture[k];
3333	>	for (int i = 0; i < k; i++)
3334	>	fs[i] = new CompletableFuture<>();
3335	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3336	>	checkIncomplete(f);
3337	>	for (int i = k - 1; i >= 0; i--) {
3338	>	fs[i].complete(i);
3339	>	checkCompletedNormally(f, k - 1);
3340	>	int x = (int) CompletableFuture.anyOf(fs).join();
3341	>	assertTrue(i <= x && x <= k - 1);
3342	>	}
3343	>	}
3344		}
3345
3346		/**
3347	<	* thenAcceptAsync result completes exceptionally if action does
3347	>	* anyOf result completes exceptionally when any component does.
3348		*/
3349	<	public void testThenAcceptAsync3() {
3350	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3351	<	FailingConsumer r = new FailingConsumer();
3352	<	CompletableFuture<Void> g = f.thenAcceptAsync(r);
3353	<	f.complete(null);
3354	<	checkCompletedWithWrappedCFException(g);
3349	>	public void testAnyOf_exceptional() throws Exception {
3350	>	for (int k = 0; k < 10; k++) {
3351	>	CompletableFuture[] fs = new CompletableFuture[k];
3352	>	CFException[] exs = new CFException[k];
3353	>	for (int i = 0; i < k; i++) {
3354	>	fs[i] = new CompletableFuture<>();
3355	>	exs[i] = new CFException();
3356	>	}
3357	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3358	>	checkIncomplete(f);
3359	>	for (int i = 0; i < k; i++) {
3360	>	fs[i].completeExceptionally(exs[i]);
3361	>	checkCompletedWithWrappedException(f, exs[0]);
3362	>	checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3363	>	}
3364	>	}
3365		}
3366
3367	<	/**
3368	<	* thenAcceptAsync result completes exceptionally if source cancelled
3369	<	*/
3370	<	public void testThenAcceptAsync4() {
3371	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3372	<	IncAction r = new IncAction();
3373	<	CompletableFuture<Void> g = f.thenAcceptAsync(r);
3374	<	assertTrue(f.cancel(true));
3375	<	checkCompletedWithWrappedCancellationException(g);
3367	>	public void testAnyOf_exceptional_backwards() throws Exception {
3368	>	for (int k = 0; k < 10; k++) {
3369	>	CompletableFuture[] fs = new CompletableFuture[k];
3370	>	CFException[] exs = new CFException[k];
3371	>	for (int i = 0; i < k; i++) {
3372	>	fs[i] = new CompletableFuture<>();
3373	>	exs[i] = new CFException();
3374	>	}
3375	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3376	>	checkIncomplete(f);
3377	>	for (int i = k - 1; i >= 0; i--) {
3378	>	fs[i].completeExceptionally(exs[i]);
3379	>	checkCompletedWithWrappedException(f, exs[k - 1]);
3380	>	checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3381	>	}
3382	>	}
3383		}
3384
3385		/**
3386	<	* thenCombineAsync result completes normally after normal
1717	<	* completion of sources
3386	>	* Completion methods throw NullPointerException with null arguments
3387		*/
3388	<	public void testThenCombineAsync() {
3389	<	CompletableFuture<Integer> f, g, h;
3388	>	@SuppressWarnings("FutureReturnValueIgnored")
3389	>	public void testNPE() {
3390	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3391	>	CompletableFuture<Integer> g = new CompletableFuture<>();
3392	>	CompletableFuture<Integer> nullFuture = (CompletableFuture<Integer>)null;
3393	>	ThreadExecutor exec = new ThreadExecutor();
3394
3395	<	f = new CompletableFuture<>();
3396	<	g = new CompletableFuture<>();
3397	<	h = f.thenCombineAsync(g, subtract);
3398	<	f.complete(3);
1726	<	checkIncomplete(h);
1727	<	g.complete(1);
1728	<	checkCompletedNormally(h, 2);
3395	>	Runnable[] throwingActions = {
3396	>	() -> CompletableFuture.supplyAsync(null),
3397	>	() -> CompletableFuture.supplyAsync(null, exec),
3398	>	() -> CompletableFuture.supplyAsync(new IntegerSupplier(ExecutionMode.SYNC, 42), null),
3399
3400	<	f = new CompletableFuture<>();
3401	<	g = new CompletableFuture<>();
3402	<	h = f.thenCombineAsync(g, subtract);
1733	<	g.complete(1);
1734	<	checkIncomplete(h);
1735	<	f.complete(3);
1736	<	checkCompletedNormally(h, 2);
3400	>	() -> CompletableFuture.runAsync(null),
3401	>	() -> CompletableFuture.runAsync(null, exec),
3402	>	() -> CompletableFuture.runAsync(() -> {}, null),
3403
3404	<	f = new CompletableFuture<>();
1739	<	g = new CompletableFuture<>();
1740	<	g.complete(1);
1741	<	f.complete(3);
1742	<	h = f.thenCombineAsync(g, subtract);
1743	<	checkCompletedNormally(h, 2);
1744	<	}
3404	>	() -> f.completeExceptionally(null),
3405
3406	<	/**
3407	<	* thenCombineAsync result completes exceptionally after exceptional
3408	<	* completion of either source
3409	<	*/
1750	<	public void testThenCombineAsync2() {
1751	<	CompletableFuture<Integer> f, g, h;
3406	>	() -> f.thenApply(null),
3407	>	() -> f.thenApplyAsync(null),
3408	>	() -> f.thenApplyAsync(x -> x, null),
3409	>	() -> f.thenApplyAsync(null, exec),
3410
3411	<	f = new CompletableFuture<>();
3412	<	g = new CompletableFuture<>();
3413	<	h = f.thenCombineAsync(g, subtract);
3414	<	f.completeExceptionally(new CFException());
1757	<	checkIncomplete(h);
1758	<	g.complete(1);
1759	<	checkCompletedWithWrappedCFException(h);
3411	>	() -> f.thenAccept(null),
3412	>	() -> f.thenAcceptAsync(null),
3413	>	() -> f.thenAcceptAsync(x -> {} , null),
3414	>	() -> f.thenAcceptAsync(null, exec),
3415
3416	<	f = new CompletableFuture<>();
3417	<	g = new CompletableFuture<>();
3418	<	h = f.thenCombineAsync(g, subtract);
3419	<	g.completeExceptionally(new CFException());
1765	<	checkIncomplete(h);
1766	<	f.complete(3);
1767	<	checkCompletedWithWrappedCFException(h);
3416	>	() -> f.thenRun(null),
3417	>	() -> f.thenRunAsync(null),
3418	>	() -> f.thenRunAsync(() -> {} , null),
3419	>	() -> f.thenRunAsync(null, exec),
3420
3421	<	f = new CompletableFuture<>();
3422	<	g = new CompletableFuture<>();
3423	<	g.completeExceptionally(new CFException());
3424	<	f.complete(3);
3425	<	h = f.thenCombineAsync(g, subtract);
3426	<	checkCompletedWithWrappedCFException(h);
3427	<	}
3421	>	() -> f.thenCombine(g, null),
3422	>	() -> f.thenCombineAsync(g, null),
3423	>	() -> f.thenCombineAsync(g, null, exec),
3424	>	() -> f.thenCombine(nullFuture, (x, y) -> x),
3425	>	() -> f.thenCombineAsync(nullFuture, (x, y) -> x),
3426	>	() -> f.thenCombineAsync(nullFuture, (x, y) -> x, exec),
3427	>	() -> f.thenCombineAsync(g, (x, y) -> x, null),
3428
3429	<	/**
3430	<	* thenCombineAsync result completes exceptionally if action does
3431	<	*/
3432	<	public void testThenCombineAsync3() {
3433	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3434	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3435	<	FailingBiFunction r = new FailingBiFunction();
1784	<	CompletableFuture<Integer> g = f.thenCombineAsync(f2, r);
1785	<	f.complete(one);
1786	<	checkIncomplete(g);
1787	<	assertFalse(r.ran);
1788	<	f2.complete(two);
1789	<	checkCompletedWithWrappedCFException(g);
1790	<	assertTrue(r.ran);
1791	<	}
3429	>	() -> f.thenAcceptBoth(g, null),
3430	>	() -> f.thenAcceptBothAsync(g, null),
3431	>	() -> f.thenAcceptBothAsync(g, null, exec),
3432	>	() -> f.thenAcceptBoth(nullFuture, (x, y) -> {}),
3433	>	() -> f.thenAcceptBothAsync(nullFuture, (x, y) -> {}),
3434	>	() -> f.thenAcceptBothAsync(nullFuture, (x, y) -> {}, exec),
3435	>	() -> f.thenAcceptBothAsync(g, (x, y) -> {}, null),
3436
3437	<	/**
3438	<	* thenCombineAsync result completes exceptionally if either source cancelled
3439	<	*/
3440	<	public void testThenCombineAsync4() {
3441	<	CompletableFuture<Integer> f, g, h;
3437	>	() -> f.runAfterBoth(g, null),
3438	>	() -> f.runAfterBothAsync(g, null),
3439	>	() -> f.runAfterBothAsync(g, null, exec),
3440	>	() -> f.runAfterBoth(nullFuture, () -> {}),
3441	>	() -> f.runAfterBothAsync(nullFuture, () -> {}),
3442	>	() -> f.runAfterBothAsync(nullFuture, () -> {}, exec),
3443	>	() -> f.runAfterBothAsync(g, () -> {}, null),
3444
3445	<	f = new CompletableFuture<>();
3446	<	g = new CompletableFuture<>();
3447	<	h = f.thenCombineAsync(g, subtract);
3448	<	assertTrue(f.cancel(true));
3449	<	checkIncomplete(h);
3450	<	g.complete(1);
3451	<	checkCompletedWithWrappedCancellationException(h);
3445	>	() -> f.applyToEither(g, null),
3446	>	() -> f.applyToEitherAsync(g, null),
3447	>	() -> f.applyToEitherAsync(g, null, exec),
3448	>	() -> f.applyToEither(nullFuture, x -> x),
3449	>	() -> f.applyToEitherAsync(nullFuture, x -> x),
3450	>	() -> f.applyToEitherAsync(nullFuture, x -> x, exec),
3451	>	() -> f.applyToEitherAsync(g, x -> x, null),
3452
3453	<	f = new CompletableFuture<>();
3454	<	g = new CompletableFuture<>();
3455	<	h = f.thenCombineAsync(g, subtract);
3456	<	assertTrue(g.cancel(true));
3457	<	checkIncomplete(h);
3458	<	f.complete(3);
3459	<	checkCompletedWithWrappedCancellationException(h);
3453	>	() -> f.acceptEither(g, null),
3454	>	() -> f.acceptEitherAsync(g, null),
3455	>	() -> f.acceptEitherAsync(g, null, exec),
3456	>	() -> f.acceptEither(nullFuture, x -> {}),
3457	>	() -> f.acceptEitherAsync(nullFuture, x -> {}),
3458	>	() -> f.acceptEitherAsync(nullFuture, x -> {}, exec),
3459	>	() -> f.acceptEitherAsync(g, x -> {}, null),
3460
3461	<	f = new CompletableFuture<>();
3462	<	g = new CompletableFuture<>();
3463	<	g.complete(3);
3464	<	assertTrue(f.cancel(true));
3465	<	h = f.thenCombineAsync(g, subtract);
3466	<	checkCompletedWithWrappedCancellationException(h);
3461	>	() -> f.runAfterEither(g, null),
3462	>	() -> f.runAfterEitherAsync(g, null),
3463	>	() -> f.runAfterEitherAsync(g, null, exec),
3464	>	() -> f.runAfterEither(nullFuture, () -> {}),
3465	>	() -> f.runAfterEitherAsync(nullFuture, () -> {}),
3466	>	() -> f.runAfterEitherAsync(nullFuture, () -> {}, exec),
3467	>	() -> f.runAfterEitherAsync(g, () -> {}, null),
3468
3469	<	f = new CompletableFuture<>();
3470	<	g = new CompletableFuture<>();
3471	<	f.complete(3);
3472	<	assertTrue(g.cancel(true));
1826	<	h = f.thenCombineAsync(g, subtract);
1827	<	checkCompletedWithWrappedCancellationException(h);
1828	<	}
3469	>	() -> f.thenCompose(null),
3470	>	() -> f.thenComposeAsync(null),
3471	>	() -> f.thenComposeAsync(new CompletableFutureInc(ExecutionMode.EXECUTOR), null),
3472	>	() -> f.thenComposeAsync(null, exec),
3473
3474	<	/**
1831	<	* thenAcceptBothAsync result completes normally after normal
1832	<	* completion of sources
1833	<	*/
1834	<	public void testThenAcceptBothAsync() {
1835	<	CompletableFuture<Integer> f, g;
1836	<	CompletableFuture<Void> h;
1837	<	SubtractAction r;
3474	>	() -> f.exceptionally(null),
3475
3476	<	f = new CompletableFuture<>();
1840	<	g = new CompletableFuture<>();
1841	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1842	<	f.complete(3);
1843	<	checkIncomplete(h);
1844	<	g.complete(1);
1845	<	checkCompletedNormally(h, null);
1846	<	assertEquals(r.value, 2);
3476	>	() -> f.handle(null),
3477
3478	<	f = new CompletableFuture<>();
3479	<	g = new CompletableFuture<>();
3480	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
3481	<	g.complete(1);
1852	<	checkIncomplete(h);
1853	<	f.complete(3);
1854	<	checkCompletedNormally(h, null);
1855	<	assertEquals(r.value, 2);
3478	>	() -> CompletableFuture.allOf((CompletableFuture<?>)null),
3479	>	() -> CompletableFuture.allOf((CompletableFuture<?>[])null),
3480	>	() -> CompletableFuture.allOf(f, null),
3481	>	() -> CompletableFuture.allOf(null, f),
3482
3483	<	f = new CompletableFuture<>();
3484	<	g = new CompletableFuture<>();
3485	<	g.complete(1);
3486	<	f.complete(3);
1861	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1862	<	checkCompletedNormally(h, null);
1863	<	assertEquals(r.value, 2);
1864	<	}
3483	>	() -> CompletableFuture.anyOf((CompletableFuture<?>)null),
3484	>	() -> CompletableFuture.anyOf((CompletableFuture<?>[])null),
3485	>	() -> CompletableFuture.anyOf(f, null),
3486	>	() -> CompletableFuture.anyOf(null, f),
3487
3488	<	/**
1867	<	* thenAcceptBothAsync result completes exceptionally after exceptional
1868	<	* completion of source
1869	<	*/
1870	<	public void testThenAcceptBothAsync2() {
1871	<	CompletableFuture<Integer> f, g;
1872	<	CompletableFuture<Void> h;
1873	<	SubtractAction r;
3488	>	() -> f.obtrudeException(null),
3489
3490	<	f = new CompletableFuture<>();
3491	<	g = new CompletableFuture<>();
3492	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1878	<	f.completeExceptionally(new CFException());
1879	<	checkIncomplete(h);
1880	<	g.complete(1);
1881	<	checkCompletedWithWrappedCFException(h);
3490	>	() -> CompletableFuture.delayedExecutor(1L, SECONDS, null),
3491	>	() -> CompletableFuture.delayedExecutor(1L, null, exec),
3492	>	() -> CompletableFuture.delayedExecutor(1L, null),
3493
3494	<	f = new CompletableFuture<>();
3495	<	g = new CompletableFuture<>();
1885	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1886	<	g.completeExceptionally(new CFException());
1887	<	checkIncomplete(h);
1888	<	f.complete(3);
1889	<	checkCompletedWithWrappedCFException(h);
3494	>	() -> f.orTimeout(1L, null),
3495	>	() -> f.completeOnTimeout(42, 1L, null),
3496
3497	<	f = new CompletableFuture<>();
3498	<	g = new CompletableFuture<>();
3499	<	f.complete(3);
1894	<	g.completeExceptionally(new CFException());
1895	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1896	<	checkCompletedWithWrappedCFException(h);
3497	>	() -> CompletableFuture.failedFuture(null),
3498	>	() -> CompletableFuture.failedStage(null),
3499	>	};
3500
3501	<	f = new CompletableFuture<>();
3502	<	g = new CompletableFuture<>();
1900	<	f.completeExceptionally(new CFException());
1901	<	g.complete(3);
1902	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1903	<	checkCompletedWithWrappedCFException(h);
3501	>	assertThrows(NullPointerException.class, throwingActions);
3502	>	assertEquals(0, exec.count.get());
3503		}
3504
3505		/**
3506	<	* thenAcceptBothAsync result completes exceptionally if action does
3506	>	* Test submissions to an executor that rejects all tasks.
3507		*/
3508	<	public void testThenAcceptBothAsync3() {
3509	<	CompletableFuture<Integer> f, g;
3510	<	CompletableFuture<Void> h;
3511	<	FailingBiConsumer r;
3508	>	public void testRejectingExecutor() {
3509	>	for (Integer v : new Integer[] { 1, null })
3510	>	{
3511	>	final CountingRejectingExecutor e = new CountingRejectingExecutor();
3512	>
3513	>	final CompletableFuture<Integer> complete = CompletableFuture.completedFuture(v);
3514	>	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3515	>
3516	>	List<CompletableFuture<?>> futures = new ArrayList<>();
3517	>
3518	>	List<CompletableFuture<Integer>> srcs = new ArrayList<>();
3519	>	srcs.add(complete);
3520	>	srcs.add(incomplete);
3521	>
3522	>	for (CompletableFuture<Integer> src : srcs) {
3523	>	List<CompletableFuture<?>> fs = new ArrayList<>();
3524	>	fs.add(src.thenRunAsync(() -> {}, e));
3525	>	fs.add(src.thenAcceptAsync(z -> {}, e));
3526	>	fs.add(src.thenApplyAsync(z -> z, e));
3527	>
3528	>	fs.add(src.thenCombineAsync(src, (x, y) -> x, e));
3529	>	fs.add(src.thenAcceptBothAsync(src, (x, y) -> {}, e));
3530	>	fs.add(src.runAfterBothAsync(src, () -> {}, e));
3531	>
3532	>	fs.add(src.applyToEitherAsync(src, z -> z, e));
3533	>	fs.add(src.acceptEitherAsync(src, z -> {}, e));
3534	>	fs.add(src.runAfterEitherAsync(src, () -> {}, e));
3535	>
3536	>	fs.add(src.thenComposeAsync(z -> null, e));
3537	>	fs.add(src.whenCompleteAsync((z, t) -> {}, e));
3538	>	fs.add(src.handleAsync((z, t) -> null, e));
3539	>
3540	>	for (CompletableFuture<?> future : fs) {
3541	>	if (src.isDone())
3542	>	checkCompletedWithWrappedException(future, e.ex);
3543	>	else
3544	>	checkIncomplete(future);
3545	>	}
3546	>	futures.addAll(fs);
3547	>	}
3548
3549	<	f = new CompletableFuture<>();
3550	<	g = new CompletableFuture<>();
1916	<	h = f.thenAcceptBothAsync(g, r = new FailingBiConsumer());
1917	<	f.complete(3);
1918	<	checkIncomplete(h);
1919	<	g.complete(1);
1920	<	checkCompletedWithWrappedCFException(h);
3549	>	{
3550	>	List<CompletableFuture<?>> fs = new ArrayList<>();
3551
3552	<	f = new CompletableFuture<>();
3553	<	g = new CompletableFuture<>();
1924	<	f.complete(3);
1925	<	g.complete(1);
1926	<	h = f.thenAcceptBothAsync(g, r = new FailingBiConsumer());
1927	<	checkCompletedWithWrappedCFException(h);
1928	<	}
3552	>	fs.add(complete.thenCombineAsync(incomplete, (x, y) -> x, e));
3553	>	fs.add(incomplete.thenCombineAsync(complete, (x, y) -> x, e));
3554
3555	<	/**
3556	<	* thenAcceptBothAsync result completes exceptionally if either source cancelled
1932	<	*/
1933	<	public void testThenAcceptBothAsync4() {
1934	<	CompletableFuture<Integer> f, g;
1935	<	CompletableFuture<Void> h;
1936	<	SubtractAction r;
3555	>	fs.add(complete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3556	>	fs.add(incomplete.thenAcceptBothAsync(complete, (x, y) -> {}, e));
3557
3558	<	f = new CompletableFuture<>();
3559	<	g = new CompletableFuture<>();
1940	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1941	<	assertTrue(f.cancel(true));
1942	<	checkIncomplete(h);
1943	<	g.complete(1);
1944	<	checkCompletedWithWrappedCancellationException(h);
3558	>	fs.add(complete.runAfterBothAsync(incomplete, () -> {}, e));
3559	>	fs.add(incomplete.runAfterBothAsync(complete, () -> {}, e));
3560
3561	<	f = new CompletableFuture<>();
3562	<	g = new CompletableFuture<>();
3563	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
3564	<	assertTrue(g.cancel(true));
1950	<	checkIncomplete(h);
1951	<	f.complete(3);
1952	<	checkCompletedWithWrappedCancellationException(h);
3561	>	for (CompletableFuture<?> future : fs)
3562	>	checkIncomplete(future);
3563	>	futures.addAll(fs);
3564	>	}
3565
3566	<	f = new CompletableFuture<>();
3567	<	g = new CompletableFuture<>();
1956	<	f.complete(3);
1957	<	assertTrue(g.cancel(true));
1958	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1959	<	checkCompletedWithWrappedCancellationException(h);
3566	>	{
3567	>	List<CompletableFuture<?>> fs = new ArrayList<>();
3568
3569	<	f = new CompletableFuture<>();
3570	<	g = new CompletableFuture<>();
1963	<	assertTrue(f.cancel(true));
1964	<	g.complete(3);
1965	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1966	<	checkCompletedWithWrappedCancellationException(h);
1967	<	}
3569	>	fs.add(complete.applyToEitherAsync(incomplete, z -> z, e));
3570	>	fs.add(incomplete.applyToEitherAsync(complete, z -> z, e));
3571
3572	<	/**
3573	<	* applyToEitherAsync result completes normally after normal
1971	<	* completion of sources
1972	<	*/
1973	<	public void testApplyToEitherAsync() {
1974	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1975	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1976	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc);
1977	<	f.complete(one);
1978	<	checkCompletedNormally(g, two);
3572	>	fs.add(complete.acceptEitherAsync(incomplete, z -> {}, e));
3573	>	fs.add(incomplete.acceptEitherAsync(complete, z -> {}, e));
3574
3575	<	f = new CompletableFuture<>();
3576	<	f.complete(one);
1982	<	f2 = new CompletableFuture<>();
1983	<	g = f.applyToEitherAsync(f2, inc);
1984	<	checkCompletedNormally(g, two);
1985	<	}
3575	>	fs.add(complete.runAfterEitherAsync(incomplete, () -> {}, e));
3576	>	fs.add(incomplete.runAfterEitherAsync(complete, () -> {}, e));
3577
3578	<	/**
3579	<	* applyToEitherAsync result completes exceptionally after exceptional
3580	<	* completion of source
3581	<	*/
1991	<	public void testApplyToEitherAsync2() {
1992	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1993	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1994	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc);
1995	<	f.completeExceptionally(new CFException());
1996	<	checkCompletedWithWrappedCFException(g);
3578	>	for (CompletableFuture<?> future : fs)
3579	>	checkCompletedWithWrappedException(future, e.ex);
3580	>	futures.addAll(fs);
3581	>	}
3582
3583	<	f = new CompletableFuture<>();
1999	<	f2 = new CompletableFuture<>();
2000	<	f2.completeExceptionally(new CFException());
2001	<	g = f.applyToEitherAsync(f2, inc);
2002	<	f.complete(one);
2003	<	checkCompletedWithWrappedCFException(g);
2004	<	}
3583	>	incomplete.complete(v);
3584
3585	<	/**
3586	<	* applyToEitherAsync result completes exceptionally if action does
3587	<	*/
3588	<	public void testApplyToEitherAsync3() {
3589	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2011	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2012	<	FailingFunction r = new FailingFunction();
2013	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, r);
2014	<	f.complete(one);
2015	<	checkCompletedWithWrappedCFException(g);
2016	<	}
3585	>	for (CompletableFuture<?> future : futures)
3586	>	checkCompletedWithWrappedException(future, e.ex);
3587	>
3588	>	assertEquals(futures.size(), e.count.get());
3589	>	}}
3590
3591		/**
3592	<	* applyToEitherAsync result completes exceptionally if either source cancelled
3592	>	* Test submissions to an executor that rejects all tasks, but
3593	>	* should never be invoked because the dependent future is
3594	>	* explicitly completed.
3595		*/
3596	<	public void testApplyToEitherAsync4() {
3597	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3598	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3599	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc);
2025	<	assertTrue(f.cancel(true));
2026	<	checkCompletedWithWrappedCancellationException(g);
3596	>	public void testRejectingExecutorNeverInvoked() {
3597	>	for (Integer v : new Integer[] { 1, null })
3598	>	{
3599	>	final CountingRejectingExecutor e = new CountingRejectingExecutor();
3600
3601	<	f = new CompletableFuture<>();
3602	<	f2 = new CompletableFuture<>();
2030	<	assertTrue(f2.cancel(true));
2031	<	g = f.applyToEitherAsync(f2, inc);
2032	<	checkCompletedWithWrappedCancellationException(g);
2033	<	}
3601	>	final CompletableFuture<Integer> complete = CompletableFuture.completedFuture(v);
3602	>	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3603
3604	<	/**
2036	<	* acceptEitherAsync result completes normally after normal
2037	<	* completion of sources
2038	<	*/
2039	<	public void testAcceptEitherAsync() {
2040	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2041	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2042	<	IncAction r = new IncAction();
2043	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
2044	<	f.complete(one);
2045	<	checkCompletedNormally(g, null);
2046	<	assertEquals(r.value, 2);
3604	>	List<CompletableFuture<?>> futures = new ArrayList<>();
3605
3606	<	r = new IncAction();
3607	<	f = new CompletableFuture<>();
3608	<	f.complete(one);
2051	<	f2 = new CompletableFuture<>();
2052	<	g = f.acceptEitherAsync(f2, r);
2053	<	checkCompletedNormally(g, null);
2054	<	assertEquals(r.value, 2);
2055	<	}
3606	>	List<CompletableFuture<Integer>> srcs = new ArrayList<>();
3607	>	srcs.add(complete);
3608	>	srcs.add(incomplete);
3609
3610	<	/**
3611	<	* acceptEitherAsync result completes exceptionally after exceptional
3612	<	* completion of source
3613	<	*/
2061	<	public void testAcceptEitherAsync2() {
2062	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2063	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2064	<	IncAction r = new IncAction();
2065	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
2066	<	f.completeExceptionally(new CFException());
2067	<	checkCompletedWithWrappedCFException(g);
3610	>	List<CompletableFuture<?>> fs = new ArrayList<>();
3611	>	fs.add(incomplete.thenRunAsync(() -> {}, e));
3612	>	fs.add(incomplete.thenAcceptAsync(z -> {}, e));
3613	>	fs.add(incomplete.thenApplyAsync(z -> z, e));
3614
3615	<	r = new IncAction();
3616	<	f = new CompletableFuture<>();
3617	<	f2 = new CompletableFuture<>();
2072	<	f2.completeExceptionally(new CFException());
2073	<	g = f.acceptEitherAsync(f2, r);
2074	<	f.complete(one);
2075	<	checkCompletedWithWrappedCFException(g);
2076	<	}
3615	>	fs.add(incomplete.thenCombineAsync(incomplete, (x, y) -> x, e));
3616	>	fs.add(incomplete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3617	>	fs.add(incomplete.runAfterBothAsync(incomplete, () -> {}, e));
3618
3619	<	/**
3620	<	* acceptEitherAsync result completes exceptionally if action does
3621	<	*/
2081	<	public void testAcceptEitherAsync3() {
2082	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2083	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2084	<	FailingConsumer r = new FailingConsumer();
2085	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
2086	<	f.complete(one);
2087	<	checkCompletedWithWrappedCFException(g);
2088	<	}
3619	>	fs.add(incomplete.applyToEitherAsync(incomplete, z -> z, e));
3620	>	fs.add(incomplete.acceptEitherAsync(incomplete, z -> {}, e));
3621	>	fs.add(incomplete.runAfterEitherAsync(incomplete, () -> {}, e));
3622
3623	<	/**
3624	<	* acceptEitherAsync result completes exceptionally if either
3625	<	* source cancelled
2093	<	*/
2094	<	public void testAcceptEitherAsync4() {
2095	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2096	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2097	<	IncAction r = new IncAction();
2098	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
2099	<	assertTrue(f.cancel(true));
2100	<	checkCompletedWithWrappedCancellationException(g);
3623	>	fs.add(incomplete.thenComposeAsync(z -> null, e));
3624	>	fs.add(incomplete.whenCompleteAsync((z, t) -> {}, e));
3625	>	fs.add(incomplete.handleAsync((z, t) -> null, e));
3626
3627	<	r = new IncAction();
3628	<	f = new CompletableFuture<>();
2104	<	f2 = new CompletableFuture<>();
2105	<	assertTrue(f2.cancel(true));
2106	<	g = f.acceptEitherAsync(f2, r);
2107	<	checkCompletedWithWrappedCancellationException(g);
2108	<	}
3627	>	fs.add(complete.thenCombineAsync(incomplete, (x, y) -> x, e));
3628	>	fs.add(incomplete.thenCombineAsync(complete, (x, y) -> x, e));
3629
3630	<	/**
3631	<	* runAfterEitherAsync result completes normally after normal
2112	<	* completion of sources
2113	<	*/
2114	<	public void testRunAfterEitherAsync() {
2115	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2116	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2117	<	Noop r = new Noop();
2118	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
2119	<	f.complete(one);
2120	<	checkCompletedNormally(g, null);
2121	<	assertTrue(r.ran);
3630	>	fs.add(complete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3631	>	fs.add(incomplete.thenAcceptBothAsync(complete, (x, y) -> {}, e));
3632
3633	<	r = new Noop();
3634	<	f = new CompletableFuture<>();
2125	<	f.complete(one);
2126	<	f2 = new CompletableFuture<>();
2127	<	g = f.runAfterEitherAsync(f2, r);
2128	<	checkCompletedNormally(g, null);
2129	<	assertTrue(r.ran);
2130	<	}
3633	>	fs.add(complete.runAfterBothAsync(incomplete, () -> {}, e));
3634	>	fs.add(incomplete.runAfterBothAsync(complete, () -> {}, e));
3635
3636	<	/**
3637	<	* runAfterEitherAsync result completes exceptionally after exceptional
2134	<	* completion of source
2135	<	*/
2136	<	public void testRunAfterEitherAsync2() {
2137	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2138	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2139	<	Noop r = new Noop();
2140	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
2141	<	f.completeExceptionally(new CFException());
2142	<	checkCompletedWithWrappedCFException(g);
3636	>	for (CompletableFuture<?> future : fs)
3637	>	checkIncomplete(future);
3638
3639	<	r = new Noop();
3640	<	f = new CompletableFuture<>();
3641	<	f2 = new CompletableFuture<>();
3642	<	f2.completeExceptionally(new CFException());
3643	<	g = f.runAfterEitherAsync(f2, r);
3644	<	f.complete(one);
3645	<	checkCompletedWithWrappedCFException(g);
3646	<	}
3639	>	for (CompletableFuture<?> future : fs)
3640	>	future.complete(null);
3641	>
3642	>	incomplete.complete(v);
3643	>
3644	>	for (CompletableFuture<?> future : fs)
3645	>	checkCompletedNormally(future, null);
3646	>
3647	>	assertEquals(0, e.count.get());
3648	>	}}
3649
3650		/**
3651	<	* runAfterEitherAsync result completes exceptionally if action does
3651	>	* toCompletableFuture returns this CompletableFuture.
3652		*/
3653	<	public void testRunAfterEitherAsync3() {
3653	>	public void testToCompletableFuture() {
3654		CompletableFuture<Integer> f = new CompletableFuture<>();
3655	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2159	<	FailingNoop r = new FailingNoop();
2160	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
2161	<	f.complete(one);
2162	<	checkCompletedWithWrappedCFException(g);
3655	>	assertSame(f, f.toCompletableFuture());
3656		}
3657
3658	+	// jdk9
3659	+
3660		/**
3661	<	* runAfterEitherAsync result completes exceptionally if either
2167	<	* source cancelled
3661	>	* newIncompleteFuture returns an incomplete CompletableFuture
3662		*/
3663	<	public void testRunAfterEitherAsync4() {
3663	>	public void testNewIncompleteFuture() {
3664	>	for (Integer v1 : new Integer[] { 1, null })
3665	>	{
3666		CompletableFuture<Integer> f = new CompletableFuture<>();
3667	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3668	<	Noop r = new Noop();
3669	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
3670	<	assertTrue(f.cancel(true));
3671	<	checkCompletedWithWrappedCancellationException(g);
3672	<
3673	<	r = new Noop();
3674	<	f = new CompletableFuture<>();
3675	<	f2 = new CompletableFuture<>();
3676	<	assertTrue(f2.cancel(true));
2181	<	g = f.runAfterEitherAsync(f2, r);
2182	<	checkCompletedWithWrappedCancellationException(g);
2183	<	}
3667	>	CompletableFuture<Integer> g = f.newIncompleteFuture();
3668	>	checkIncomplete(f);
3669	>	checkIncomplete(g);
3670	>	f.complete(v1);
3671	>	checkCompletedNormally(f, v1);
3672	>	checkIncomplete(g);
3673	>	g.complete(v1);
3674	>	checkCompletedNormally(g, v1);
3675	>	assertSame(g.getClass(), CompletableFuture.class);
3676	>	}}
3677
3678		/**
3679	<	* thenComposeAsync result completes normally after normal
2187	<	* completion of source
3679	>	* completedStage returns a completed CompletionStage
3680		*/
3681	<	public void testThenComposeAsync() {
3682	<	CompletableFuture<Integer> f, g;
3683	<	CompletableFutureInc r;
3684	<
3685	<	f = new CompletableFuture<>();
3686	<	g = f.thenComposeAsync(r = new CompletableFutureInc());
3687	<	f.complete(one);
2196	<	checkCompletedNormally(g, two);
2197	<
2198	<	f = new CompletableFuture<>();
2199	<	f.complete(one);
2200	<	g = f.thenComposeAsync(r = new CompletableFutureInc());
2201	<	checkCompletedNormally(g, two);
3681	>	public void testCompletedStage() {
3682	>	AtomicInteger x = new AtomicInteger(0);
3683	>	AtomicReference<Throwable> r = new AtomicReference<>();
3684	>	CompletionStage<Integer> f = CompletableFuture.completedStage(1);
3685	>	f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3686	>	assertEquals(x.get(), 1);
3687	>	assertNull(r.get());
3688		}
3689
3690		/**
3691	<	* thenComposeAsync result completes exceptionally after
3692	<	* exceptional completion of source
3691	>	* defaultExecutor by default returns the commonPool if
3692	>	* it supports more than one thread.
3693		*/
3694	<	public void testThenComposeAsync2() {
3695	<	CompletableFuture<Integer> f, g;
3696	<	CompletableFutureInc r;
3697	<
3698	<	f = new CompletableFuture<>();
3699	<	g = f.thenComposeAsync(r = new CompletableFutureInc());
3700	<	f.completeExceptionally(new CFException());
3701	<	checkCompletedWithWrappedCFException(g);
2216	<	assertFalse(r.ran);
2217	<
2218	<	f = new CompletableFuture<>();
2219	<	f.completeExceptionally(new CFException());
2220	<	g = f.thenComposeAsync(r = new CompletableFutureInc());
2221	<	checkCompletedWithWrappedCFException(g);
2222	<	assertFalse(r.ran);
3694	>	public void testDefaultExecutor() {
3695	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3696	>	Executor e = f.defaultExecutor();
3697	>	Executor c = ForkJoinPool.commonPool();
3698	>	if (ForkJoinPool.getCommonPoolParallelism() > 1)
3699	>	assertSame(e, c);
3700	>	else
3701	>	assertNotSame(e, c);
3702		}
3703
3704		/**
3705	<	* thenComposeAsync result completes exceptionally if action does
3705	>	* failedFuture returns a CompletableFuture completed
3706	>	* exceptionally with the given Exception
3707		*/
3708	<	public void testThenComposeAsync3() {
3709	<	CompletableFuture<Integer> f, g;
3710	<	FailingCompletableFutureFunction r;
3711	<
2232	<	f = new CompletableFuture<>();
2233	<	g = f.thenComposeAsync(r = new FailingCompletableFutureFunction());
2234	<	f.complete(one);
2235	<	checkCompletedWithWrappedCFException(g);
2236	<
2237	<	f = new CompletableFuture<>();
2238	<	f.complete(one);
2239	<	g = f.thenComposeAsync(r = new FailingCompletableFutureFunction());
2240	<	checkCompletedWithWrappedCFException(g);
3708	>	public void testFailedFuture() {
3709	>	CFException ex = new CFException();
3710	>	CompletableFuture<Integer> f = CompletableFuture.failedFuture(ex);
3711	>	checkCompletedExceptionally(f, ex);
3712		}
3713
3714		/**
3715	<	* thenComposeAsync result completes exceptionally if source cancelled
3715	>	* failedFuture(null) throws NPE
3716		*/
3717	<	public void testThenComposeAsync4() {
3718	<	CompletableFuture<Integer> f, g;
3719	<	CompletableFutureInc r;
3720	<
3721	<	f = new CompletableFuture<>();
2251	<	g = f.thenComposeAsync(r = new CompletableFutureInc());
2252	<	assertTrue(f.cancel(true));
2253	<	checkCompletedWithWrappedCancellationException(g);
2254	<
2255	<	f = new CompletableFuture<>();
2256	<	assertTrue(f.cancel(true));
2257	<	g = f.thenComposeAsync(r = new CompletableFutureInc());
2258	<	checkCompletedWithWrappedCancellationException(g);
3717	>	public void testFailedFuture_null() {
3718	>	try {
3719	>	CompletableFuture<Integer> f = CompletableFuture.failedFuture(null);
3720	>	shouldThrow();
3721	>	} catch (NullPointerException success) {}
3722		}
3723
2261	–	// async with explicit executors
2262	–
3724		/**
3725	<	* thenRunAsync result completes normally after normal completion of source
3725	>	* copy returns a CompletableFuture that is completed normally,
3726	>	* with the same value, when source is.
3727		*/
3728	<	public void testThenRunAsyncE() {
3728	>	public void testCopy_normalCompletion() {
3729	>	for (boolean createIncomplete : new boolean[] { true, false })
3730	>	for (Integer v1 : new Integer[] { 1, null })
3731	>	{
3732		CompletableFuture<Integer> f = new CompletableFuture<>();
3733	<	Noop r = new Noop();
3734	<	CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
3735	<	f.complete(null);
3736	<	checkCompletedNormally(g, null);
3737	<
3738	<	// reordered version
3739	<	f = new CompletableFuture<>();
3740	<	f.complete(null);
3741	<	r = new Noop();
3742	<	g = f.thenRunAsync(r, new ThreadExecutor());
2278	<	checkCompletedNormally(g, null);
2279	<	}
3733	>	if (!createIncomplete) assertTrue(f.complete(v1));
3734	>	CompletableFuture<Integer> g = f.copy();
3735	>	if (createIncomplete) {
3736	>	checkIncomplete(f);
3737	>	checkIncomplete(g);
3738	>	assertTrue(f.complete(v1));
3739	>	}
3740	>	checkCompletedNormally(f, v1);
3741	>	checkCompletedNormally(g, v1);
3742	>	}}
3743
3744		/**
3745	<	* thenRunAsync result completes exceptionally after exceptional
3746	<	* completion of source
3745	>	* copy returns a CompletableFuture that is completed exceptionally
3746	>	* when source is.
3747		*/
3748	<	public void testThenRunAsync2E() {
3748	>	public void testCopy_exceptionalCompletion() {
3749	>	for (boolean createIncomplete : new boolean[] { true, false })
3750	>	{
3751	>	CFException ex = new CFException();
3752		CompletableFuture<Integer> f = new CompletableFuture<>();
3753	<	Noop r = new Noop();
3754	<	CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
3755	<	f.completeExceptionally(new CFException());
3756	<	try {
3757	<	g.join();
3758	<	shouldThrow();
3759	<	} catch (CompletionException success) {}
3760	<	checkCompletedWithWrappedCFException(g);
3761	<	}
3753	>	if (!createIncomplete) f.completeExceptionally(ex);
3754	>	CompletableFuture<Integer> g = f.copy();
3755	>	if (createIncomplete) {
3756	>	checkIncomplete(f);
3757	>	checkIncomplete(g);
3758	>	f.completeExceptionally(ex);
3759	>	}
3760	>	checkCompletedExceptionally(f, ex);
3761	>	checkCompletedWithWrappedException(g, ex);
3762	>	}}
3763
3764		/**
3765	<	* thenRunAsync result completes exceptionally if action does
3765	>	* Completion of a copy does not complete its source.
3766		*/
3767	<	public void testThenRunAsync3E() {
3767	>	public void testCopy_oneWayPropagation() {
3768		CompletableFuture<Integer> f = new CompletableFuture<>();
3769	<	FailingNoop r = new FailingNoop();
3770	<	CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
3771	<	f.complete(null);
3772	<	checkCompletedWithWrappedCFException(g);
3769	>	assertTrue(f.copy().complete(1));
3770	>	assertTrue(f.copy().complete(null));
3771	>	assertTrue(f.copy().cancel(true));
3772	>	assertTrue(f.copy().cancel(false));
3773	>	assertTrue(f.copy().completeExceptionally(new CFException()));
3774	>	checkIncomplete(f);
3775		}
3776
3777		/**
3778	<	* thenRunAsync result completes exceptionally if source cancelled
3778	>	* minimalCompletionStage returns a CompletableFuture that is
3779	>	* completed normally, with the same value, when source is.
3780		*/
3781	<	public void testThenRunAsync4E() {
3781	>	public void testMinimalCompletionStage() {
3782		CompletableFuture<Integer> f = new CompletableFuture<>();
3783	<	Noop r = new Noop();
3784	<	CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
3785	<	assertTrue(f.cancel(true));
3786	<	checkCompletedWithWrappedCancellationException(g);
3783	>	CompletionStage<Integer> g = f.minimalCompletionStage();
3784	>	AtomicInteger x = new AtomicInteger(0);
3785	>	AtomicReference<Throwable> r = new AtomicReference<>();
3786	>	checkIncomplete(f);
3787	>	g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3788	>	f.complete(1);
3789	>	checkCompletedNormally(f, 1);
3790	>	assertEquals(x.get(), 1);
3791	>	assertNull(r.get());
3792		}
3793
3794		/**
3795	<	* thenApplyAsync result completes normally after normal completion of source
3795	>	* minimalCompletionStage returns a CompletableFuture that is
3796	>	* completed exceptionally when source is.
3797		*/
3798	<	public void testThenApplyAsyncE() {
3798	>	public void testMinimalCompletionStage2() {
3799		CompletableFuture<Integer> f = new CompletableFuture<>();
3800	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc, new ThreadExecutor());
3801	<	f.complete(one);
3802	<	checkCompletedNormally(g, two);
3800	>	CompletionStage<Integer> g = f.minimalCompletionStage();
3801	>	AtomicInteger x = new AtomicInteger(0);
3802	>	AtomicReference<Throwable> r = new AtomicReference<>();
3803	>	g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3804	>	checkIncomplete(f);
3805	>	CFException ex = new CFException();
3806	>	f.completeExceptionally(ex);
3807	>	checkCompletedExceptionally(f, ex);
3808	>	assertEquals(x.get(), 0);
3809	>	assertEquals(r.get().getCause(), ex);
3810		}
3811
3812		/**
3813	<	* thenApplyAsync result completes exceptionally after exceptional
3814	<	* completion of source
3813	>	* failedStage returns a CompletionStage completed
3814	>	* exceptionally with the given Exception
3815		*/
3816	<	public void testThenApplyAsync2E() {
3817	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3818	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc, new ThreadExecutor());
3819	<	f.completeExceptionally(new CFException());
3820	<	checkCompletedWithWrappedCFException(g);
3816	>	public void testFailedStage() {
3817	>	CFException ex = new CFException();
3818	>	CompletionStage<Integer> f = CompletableFuture.failedStage(ex);
3819	>	AtomicInteger x = new AtomicInteger(0);
3820	>	AtomicReference<Throwable> r = new AtomicReference<>();
3821	>	f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3822	>	assertEquals(x.get(), 0);
3823	>	assertEquals(r.get(), ex);
3824		}
3825
3826		/**
3827	<	* thenApplyAsync result completes exceptionally if action does
3827	>	* completeAsync completes with value of given supplier
3828		*/
3829	<	public void testThenApplyAsync3E() {
3829	>	public void testCompleteAsync() {
3830	>	for (Integer v1 : new Integer[] { 1, null })
3831	>	{
3832		CompletableFuture<Integer> f = new CompletableFuture<>();
3833	<	FailingFunction r = new FailingFunction();
3834	<	CompletableFuture<Integer> g = f.thenApplyAsync(r, new ThreadExecutor());
3835	<	f.complete(null);
3836	<	checkCompletedWithWrappedCFException(g);
2349	<	}
3833	>	f.completeAsync(() -> v1);
3834	>	f.join();
3835	>	checkCompletedNormally(f, v1);
3836	>	}}
3837
3838		/**
3839	<	* thenApplyAsync result completes exceptionally if source cancelled
3839	>	* completeAsync completes exceptionally if given supplier throws
3840		*/
3841	<	public void testThenApplyAsync4E() {
3841	>	public void testCompleteAsync2() {
3842		CompletableFuture<Integer> f = new CompletableFuture<>();
3843	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc, new ThreadExecutor());
3844	<	assertTrue(f.cancel(true));
3845	<	checkCompletedWithWrappedCancellationException(g);
3843	>	CFException ex = new CFException();
3844	>	f.completeAsync(() -> { throw ex; });
3845	>	try {
3846	>	f.join();
3847	>	shouldThrow();
3848	>	} catch (CompletionException success) {}
3849	>	checkCompletedWithWrappedException(f, ex);
3850		}
3851
3852		/**
3853	<	* thenAcceptAsync result completes normally after normal
2363	<	* completion of source
3853	>	* completeAsync with given executor completes with value of given supplier
3854		*/
3855	<	public void testThenAcceptAsyncE() {
3855	>	public void testCompleteAsync3() {
3856	>	for (Integer v1 : new Integer[] { 1, null })
3857	>	{
3858		CompletableFuture<Integer> f = new CompletableFuture<>();
3859	<	IncAction r = new IncAction();
3860	<	CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
3861	<	f.complete(one);
3862	<	checkCompletedNormally(g, null);
3863	<	assertEquals(r.value, 2);
3864	<	}
3859	>	ThreadExecutor executor = new ThreadExecutor();
3860	>	f.completeAsync(() -> v1, executor);
3861	>	assertSame(v1, f.join());
3862	>	checkCompletedNormally(f, v1);
3863	>	assertEquals(1, executor.count.get());
3864	>	}}
3865
3866		/**
3867	<	* thenAcceptAsync result completes exceptionally after exceptional
3868	<	* completion of source
3867	>	* completeAsync with given executor completes exceptionally if
3868	>	* given supplier throws
3869		*/
3870	<	public void testThenAcceptAsync2E() {
3870	>	public void testCompleteAsync4() {
3871		CompletableFuture<Integer> f = new CompletableFuture<>();
3872	<	IncAction r = new IncAction();
3873	<	CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
3874	<	f.completeExceptionally(new CFException());
3875	<	checkCompletedWithWrappedCFException(g);
3872	>	CFException ex = new CFException();
3873	>	ThreadExecutor executor = new ThreadExecutor();
3874	>	f.completeAsync(() -> { throw ex; }, executor);
3875	>	try {
3876	>	f.join();
3877	>	shouldThrow();
3878	>	} catch (CompletionException success) {}
3879	>	checkCompletedWithWrappedException(f, ex);
3880	>	assertEquals(1, executor.count.get());
3881		}
3882
3883		/**
3884	<	* thenAcceptAsync result completes exceptionally if action does
3884	>	* orTimeout completes with TimeoutException if not complete
3885		*/
3886	<	public void testThenAcceptAsync3E() {
3886	>	public void testOrTimeout_timesOut() {
3887	>	long timeoutMillis = timeoutMillis();
3888		CompletableFuture<Integer> f = new CompletableFuture<>();
3889	<	FailingConsumer r = new FailingConsumer();
3890	<	CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
3891	<	f.complete(null);
3892	<	checkCompletedWithWrappedCFException(g);
3889	>	long startTime = System.nanoTime();
3890	>	assertSame(f, f.orTimeout(timeoutMillis, MILLISECONDS));
3891	>	checkCompletedWithTimeoutException(f);
3892	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3893		}
3894
3895		/**
3896	<	* thenAcceptAsync result completes exceptionally if source cancelled
3896	>	* orTimeout completes normally if completed before timeout
3897		*/
3898	<	public void testThenAcceptAsync4E() {
3898	>	public void testOrTimeout_completed() {
3899	>	for (Integer v1 : new Integer[] { 1, null })
3900	>	{
3901		CompletableFuture<Integer> f = new CompletableFuture<>();
3902	<	IncAction r = new IncAction();
3903	<	CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
3904	<	assertTrue(f.cancel(true));
3905	<	checkCompletedWithWrappedCancellationException(g);
3906	<	}
3902	>	CompletableFuture<Integer> g = new CompletableFuture<>();
3903	>	long startTime = System.nanoTime();
3904	>	f.complete(v1);
3905	>	assertSame(f, f.orTimeout(LONG_DELAY_MS, MILLISECONDS));
3906	>	assertSame(g, g.orTimeout(LONG_DELAY_MS, MILLISECONDS));
3907	>	g.complete(v1);
3908	>	checkCompletedNormally(f, v1);
3909	>	checkCompletedNormally(g, v1);
3910	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3911	>	}}
3912
3913		/**
3914	<	* thenCombineAsync result completes normally after normal
2410	<	* completion of sources
3914	>	* completeOnTimeout completes with given value if not complete
3915		*/
3916	<	public void testThenCombineAsyncE() {
3917	<	CompletableFuture<Integer> f, g, h;
3918	<	ThreadExecutor e = new ThreadExecutor();
2415	<	int count = 0;
2416	<
2417	<	f = new CompletableFuture<>();
2418	<	g = new CompletableFuture<>();
2419	<	h = f.thenCombineAsync(g, subtract, e);
2420	<	f.complete(3);
2421	<	checkIncomplete(h);
2422	<	g.complete(1);
2423	<	checkCompletedNormally(h, 2);
2424	<	assertEquals(++count, e.count.get());
2425	<
2426	<	f = new CompletableFuture<>();
2427	<	g = new CompletableFuture<>();
2428	<	h = f.thenCombineAsync(g, subtract, e);
2429	<	g.complete(1);
2430	<	checkIncomplete(h);
2431	<	f.complete(3);
2432	<	checkCompletedNormally(h, 2);
2433	<	assertEquals(++count, e.count.get());
2434	<
2435	<	f = new CompletableFuture<>();
2436	<	g = new CompletableFuture<>();
2437	<	g.complete(1);
2438	<	f.complete(3);
2439	<	h = f.thenCombineAsync(g, subtract, e);
2440	<	checkCompletedNormally(h, 2);
2441	<	assertEquals(++count, e.count.get());
3916	>	public void testCompleteOnTimeout_timesOut() {
3917	>	testInParallel(() -> testCompleteOnTimeout_timesOut(42),
3918	>	() -> testCompleteOnTimeout_timesOut(null));
3919		}
3920
3921		/**
3922	<	* thenCombineAsync result completes exceptionally after exceptional
2446	<	* completion of either source
3922	>	* completeOnTimeout completes with given value if not complete
3923		*/
3924	<	public void testThenCombineAsync2E() {
3925	<	CompletableFuture<Integer> f, g, h;
3926	<	ThreadExecutor e = new ThreadExecutor();
3927	<	int count = 0;
3928	<
3929	<	f = new CompletableFuture<>();
3930	<	g = new CompletableFuture<>();
3931	<	h = f.thenCombineAsync(g, subtract, e);
3932	<	f.completeExceptionally(new CFException());
2457	<	checkIncomplete(h);
2458	<	g.complete(1);
2459	<	checkCompletedWithWrappedCFException(h);
2460	<
2461	<	f = new CompletableFuture<>();
2462	<	g = new CompletableFuture<>();
2463	<	h = f.thenCombineAsync(g, subtract, e);
2464	<	g.completeExceptionally(new CFException());
2465	<	checkIncomplete(h);
2466	<	f.complete(3);
2467	<	checkCompletedWithWrappedCFException(h);
2468	<
2469	<	f = new CompletableFuture<>();
2470	<	g = new CompletableFuture<>();
2471	<	g.completeExceptionally(new CFException());
2472	<	h = f.thenCombineAsync(g, subtract, e);
2473	<	checkIncomplete(h);
2474	<	f.complete(3);
2475	<	checkCompletedWithWrappedCFException(h);
2476	<
2477	<	assertEquals(0, e.count.get());
3924	>	public void testCompleteOnTimeout_timesOut(Integer v) {
3925	>	long timeoutMillis = timeoutMillis();
3926	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3927	>	long startTime = System.nanoTime();
3928	>	assertSame(f, f.completeOnTimeout(v, timeoutMillis, MILLISECONDS));
3929	>	assertSame(v, f.join());
3930	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3931	>	f.complete(99);         // should have no effect
3932	>	checkCompletedNormally(f, v);
3933		}
3934
3935		/**
3936	<	* thenCombineAsync result completes exceptionally if action does
3936	>	* completeOnTimeout has no effect if completed within timeout
3937		*/
3938	<	public void testThenCombineAsync3E() {
3938	>	public void testCompleteOnTimeout_completed() {
3939	>	for (Integer v1 : new Integer[] { 1, null })
3940	>	{
3941		CompletableFuture<Integer> f = new CompletableFuture<>();
3942	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3943	<	FailingBiFunction r = new FailingBiFunction();
3944	<	CompletableFuture<Integer> g = f.thenCombineAsync(f2, r, new ThreadExecutor());
3945	<	f.complete(one);
3946	<	checkIncomplete(g);
3947	<	assertFalse(r.ran);
3948	<	f2.complete(two);
3949	<	checkCompletedWithWrappedCFException(g);
3950	<	assertTrue(r.ran);
3951	<	}
3942	>	CompletableFuture<Integer> g = new CompletableFuture<>();
3943	>	long startTime = System.nanoTime();
3944	>	f.complete(v1);
3945	>	assertSame(f, f.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS));
3946	>	assertSame(g, g.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS));
3947	>	g.complete(v1);
3948	>	checkCompletedNormally(f, v1);
3949	>	checkCompletedNormally(g, v1);
3950	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3951	>	}}
3952
3953		/**
3954	<	* thenCombineAsync result completes exceptionally if either source cancelled
3954	>	* delayedExecutor returns an executor that delays submission
3955		*/
3956	<	public void testThenCombineAsync4E() {
3957	<	CompletableFuture<Integer> f, g, h;
3958	<	ThreadExecutor e = new ThreadExecutor();
3956	>	public void testDelayedExecutor() {
3957	>	testInParallel(() -> testDelayedExecutor(null, null),
3958	>	() -> testDelayedExecutor(null, 1),
3959	>	() -> testDelayedExecutor(new ThreadExecutor(), 1),
3960	>	() -> testDelayedExecutor(new ThreadExecutor(), 1));
3961	>	}
3962	>
3963	>	public void testDelayedExecutor(Executor executor, Integer v) throws Exception {
3964	>	long timeoutMillis = timeoutMillis();
3965	>	// Use an "unreasonably long" long timeout to catch lingering threads
3966	>	long longTimeoutMillis = 1000 * 60 * 60 * 24;
3967	>	final Executor delayer, longDelayer;
3968	>	if (executor == null) {
3969	>	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS);
3970	>	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS);
3971	>	} else {
3972	>	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS, executor);
3973	>	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS, executor);
3974	>	}
3975	>	long startTime = System.nanoTime();
3976	>	CompletableFuture<Integer> f =
3977	>	CompletableFuture.supplyAsync(() -> v, delayer);
3978	>	CompletableFuture<Integer> g =
3979	>	CompletableFuture.supplyAsync(() -> v, longDelayer);
3980
3981	<	f = new CompletableFuture<>();
2504	<	g = new CompletableFuture<>();
2505	<	h = f.thenCombineAsync(g, subtract, e);
2506	<	assertTrue(f.cancel(true));
2507	<	checkIncomplete(h);
2508	<	g.complete(1);
2509	<	checkCompletedWithWrappedCancellationException(h);
3981	>	assertNull(g.getNow(null));
3982
3983	<	f = new CompletableFuture<>();
3984	<	g = new CompletableFuture<>();
3985	<	h = f.thenCombineAsync(g, subtract, e);
3986	<	assertTrue(g.cancel(true));
2515	<	checkIncomplete(h);
2516	<	f.complete(3);
2517	<	checkCompletedWithWrappedCancellationException(h);
3983	>	assertSame(v, f.get(LONG_DELAY_MS, MILLISECONDS));
3984	>	long millisElapsed = millisElapsedSince(startTime);
3985	>	assertTrue(millisElapsed >= timeoutMillis);
3986	>	assertTrue(millisElapsed < LONG_DELAY_MS / 2);
3987
3988	<	f = new CompletableFuture<>();
2520	<	g = new CompletableFuture<>();
2521	<	assertTrue(g.cancel(true));
2522	<	h = f.thenCombineAsync(g, subtract, e);
2523	<	checkIncomplete(h);
2524	<	f.complete(3);
2525	<	checkCompletedWithWrappedCancellationException(h);
3988	>	checkCompletedNormally(f, v);
3989
3990	<	f = new CompletableFuture<>();
2528	<	g = new CompletableFuture<>();
2529	<	assertTrue(f.cancel(true));
3990	>	checkIncomplete(g);
3991		assertTrue(g.cancel(true));
2531	–	h = f.thenCombineAsync(g, subtract, e);
2532	–	checkCompletedWithWrappedCancellationException(h);
2533	–
2534	–	assertEquals(0, e.count.get());
2535	–	}
2536	–
2537	–	/**
2538	–	* thenAcceptBothAsync result completes normally after normal
2539	–	* completion of sources
2540	–	*/
2541	–	public void testThenAcceptBothAsyncE() {
2542	–	CompletableFuture<Integer> f, g;
2543	–	CompletableFuture<Void> h;
2544	–	SubtractAction r;
2545	–	ThreadExecutor e = new ThreadExecutor();
2546	–
2547	–	f = new CompletableFuture<>();
2548	–	g = new CompletableFuture<>();
2549	–	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2550	–	f.complete(3);
2551	–	checkIncomplete(h);
2552	–	g.complete(1);
2553	–	checkCompletedNormally(h, null);
2554	–	assertEquals(r.value, 2);
2555	–
2556	–	f = new CompletableFuture<>();
2557	–	g = new CompletableFuture<>();
2558	–	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2559	–	g.complete(1);
2560	–	checkIncomplete(h);
2561	–	f.complete(3);
2562	–	checkCompletedNormally(h, null);
2563	–	assertEquals(r.value, 2);
2564	–
2565	–	f = new CompletableFuture<>();
2566	–	g = new CompletableFuture<>();
2567	–	g.complete(1);
2568	–	f.complete(3);
2569	–	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2570	–	checkCompletedNormally(h, null);
2571	–	assertEquals(r.value, 2);
2572	–
2573	–	assertEquals(3, e.count.get());
2574	–	}
2575	–
2576	–	/**
2577	–	* thenAcceptBothAsync result completes exceptionally after exceptional
2578	–	* completion of source
2579	–	*/
2580	–	public void testThenAcceptBothAsync2E() {
2581	–	CompletableFuture<Integer> f, g;
2582	–	CompletableFuture<Void> h;
2583	–	SubtractAction r;
2584	–	ThreadExecutor e = new ThreadExecutor();
2585	–
2586	–	f = new CompletableFuture<>();
2587	–	g = new CompletableFuture<>();
2588	–	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2589	–	f.completeExceptionally(new CFException());
2590	–	checkIncomplete(h);
2591	–	g.complete(1);
2592	–	checkCompletedWithWrappedCFException(h);
2593	–
2594	–	f = new CompletableFuture<>();
2595	–	g = new CompletableFuture<>();
2596	–	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2597	–	g.completeExceptionally(new CFException());
2598	–	checkIncomplete(h);
2599	–	f.complete(3);
2600	–	checkCompletedWithWrappedCFException(h);
2601	–
2602	–	f = new CompletableFuture<>();
2603	–	g = new CompletableFuture<>();
2604	–	f.complete(3);
2605	–	g.completeExceptionally(new CFException());
2606	–	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2607	–	checkCompletedWithWrappedCFException(h);
2608	–
2609	–	f = new CompletableFuture<>();
2610	–	g = new CompletableFuture<>();
2611	–	f.completeExceptionally(new CFException());
2612	–	g.complete(3);
2613	–	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2614	–	checkCompletedWithWrappedCFException(h);
2615	–
2616	–	assertEquals(0, e.count.get());
3992		}
3993
3994	<	/**
2620	<	* thenAcceptBothAsync result completes exceptionally if action does
2621	<	*/
2622	<	public void testThenAcceptBothAsync3E() {
2623	<	CompletableFuture<Integer> f, g;
2624	<	CompletableFuture<Void> h;
2625	<	FailingBiConsumer r;
2626	<	ThreadExecutor e = new ThreadExecutor();
3994	>	//--- tests of implementation details; not part of official tck ---
3995
3996	<	f = new CompletableFuture<>();
3997	<	g = new CompletableFuture<>();
3998	<	h = f.thenAcceptBothAsync(g, r = new FailingBiConsumer(), e);
3999	<	f.complete(3);
4000	<	checkIncomplete(h);
4001	<	g.complete(1);
4002	<	checkCompletedWithWrappedCFException(h);
4003	<
4004	<	f = new CompletableFuture<>();
2637	<	g = new CompletableFuture<>();
2638	<	f.complete(3);
2639	<	g.complete(1);
2640	<	h = f.thenAcceptBothAsync(g, r = new FailingBiConsumer(), e);
2641	<	checkCompletedWithWrappedCFException(h);
3996	>	Object resultOf(CompletableFuture<?> f) {
3997	>	SecurityManager sm = System.getSecurityManager();
3998	>	if (sm != null) {
3999	>	try {
4000	>	System.setSecurityManager(null);
4001	>	} catch (SecurityException giveUp) {
4002	>	return "Reflection not available";
4003	>	}
4004	>	}
4005
4006	<	assertEquals(2, e.count.get());
4006	>	try {
4007	>	java.lang.reflect.Field resultField
4008	>	= CompletableFuture.class.getDeclaredField("result");
4009	>	resultField.setAccessible(true);
4010	>	return resultField.get(f);
4011	>	} catch (Throwable t) {
4012	>	throw new AssertionError(t);
4013	>	} finally {
4014	>	if (sm != null) System.setSecurityManager(sm);
4015	>	}
4016		}
4017
4018	<	/**
4019	<	* thenAcceptBothAsync result completes exceptionally if either source cancelled
4020	<	*/
4021	<	public void testThenAcceptBothAsync4E() {
4022	<	CompletableFuture<Integer> f, g;
4023	<	CompletableFuture<Void> h;
4024	<	SubtractAction r;
2653	<	ThreadExecutor e = new ThreadExecutor();
2654	<
2655	<	f = new CompletableFuture<>();
2656	<	g = new CompletableFuture<>();
2657	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2658	<	assertTrue(f.cancel(true));
2659	<	checkIncomplete(h);
2660	<	g.complete(1);
2661	<	checkCompletedWithWrappedCancellationException(h);
2662	<
2663	<	f = new CompletableFuture<>();
2664	<	g = new CompletableFuture<>();
2665	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2666	<	assertTrue(g.cancel(true));
2667	<	checkIncomplete(h);
2668	<	f.complete(3);
2669	<	checkCompletedWithWrappedCancellationException(h);
2670	<
2671	<	f = new CompletableFuture<>();
2672	<	g = new CompletableFuture<>();
2673	<	f.complete(3);
2674	<	assertTrue(g.cancel(true));
2675	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2676	<	checkCompletedWithWrappedCancellationException(h);
2677	<
2678	<	f = new CompletableFuture<>();
2679	<	g = new CompletableFuture<>();
2680	<	assertTrue(f.cancel(true));
2681	<	g.complete(3);
2682	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2683	<	checkCompletedWithWrappedCancellationException(h);
4018	>	public void testExceptionPropagationReusesResultObject() {
4019	>	if (!testImplementationDetails) return;
4020	>	for (ExecutionMode m : ExecutionMode.values())
4021	>	{
4022	>	final CFException ex = new CFException();
4023	>	final CompletableFuture<Integer> v42 = CompletableFuture.completedFuture(42);
4024	>	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
4025
4026	<	assertEquals(0, e.count.get());
4027	<	}
4026	>	final Runnable noopRunnable = new Noop(m);
4027	>	final Consumer<Integer> noopConsumer = new NoopConsumer(m);
4028	>	final Function<Integer, Integer> incFunction = new IncFunction(m);
4029	>
4030	>	List<Function<CompletableFuture<Integer>, CompletableFuture<?>>> funs
4031	>	= new ArrayList<>();
4032	>
4033	>	funs.add(y -> m.thenRun(y, noopRunnable));
4034	>	funs.add(y -> m.thenAccept(y, noopConsumer));
4035	>	funs.add(y -> m.thenApply(y, incFunction));
4036	>
4037	>	funs.add(y -> m.runAfterEither(y, incomplete, noopRunnable));
4038	>	funs.add(y -> m.acceptEither(y, incomplete, noopConsumer));
4039	>	funs.add(y -> m.applyToEither(y, incomplete, incFunction));
4040	>
4041	>	funs.add(y -> m.runAfterBoth(y, v42, noopRunnable));
4042	>	funs.add(y -> m.runAfterBoth(v42, y, noopRunnable));
4043	>	funs.add(y -> m.thenAcceptBoth(y, v42, new SubtractAction(m)));
4044	>	funs.add(y -> m.thenAcceptBoth(v42, y, new SubtractAction(m)));
4045	>	funs.add(y -> m.thenCombine(y, v42, new SubtractFunction(m)));
4046	>	funs.add(y -> m.thenCombine(v42, y, new SubtractFunction(m)));
4047	>
4048	>	funs.add(y -> m.whenComplete(y, (Integer r, Throwable t) -> {}));
4049	>
4050	>	funs.add(y -> m.thenCompose(y, new CompletableFutureInc(m)));
4051	>
4052	>	funs.add(y -> CompletableFuture.allOf(y));
4053	>	funs.add(y -> CompletableFuture.allOf(y, v42));
4054	>	funs.add(y -> CompletableFuture.allOf(v42, y));
4055	>	funs.add(y -> CompletableFuture.anyOf(y));
4056	>	funs.add(y -> CompletableFuture.anyOf(y, incomplete));
4057	>	funs.add(y -> CompletableFuture.anyOf(incomplete, y));
4058
4059	<	/**
4060	<	* applyToEitherAsync result completes normally after normal
4061	<	* completion of sources
4062	<	*/
4063	<	public void testApplyToEitherAsyncE() {
4064	<	CompletableFuture<Integer> f = new CompletableFuture<>();
4065	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
4066	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
4067	<	f.complete(one);
4068	<	checkCompletedNormally(g, two);
2698	<
2699	<	f = new CompletableFuture<>();
2700	<	f.complete(one);
2701	<	f2 = new CompletableFuture<>();
2702	<	g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
2703	<	checkCompletedNormally(g, two);
2704	<	}
4059	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
4060	>	fun : funs) {
4061	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4062	>	f.completeExceptionally(ex);
4063	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4064	>	checkCompletedWithWrappedException(src, ex);
4065	>	CompletableFuture<?> dep = fun.apply(src);
4066	>	checkCompletedWithWrappedException(dep, ex);
4067	>	assertSame(resultOf(src), resultOf(dep));
4068	>	}
4069
4070	<	/**
4071	<	* applyToEitherAsync result completes exceptionally after exceptional
4072	<	* completion of source
4073	<	*/
4074	<	public void testApplyToEitherAsync2E() {
4075	<	CompletableFuture<Integer> f = new CompletableFuture<>();
4076	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
4077	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
4078	<	f.completeExceptionally(new CFException());
4079	<	checkCompletedWithWrappedCFException(g);
4070	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
4071	>	fun : funs) {
4072	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4073	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4074	>	CompletableFuture<?> dep = fun.apply(src);
4075	>	f.completeExceptionally(ex);
4076	>	checkCompletedWithWrappedException(src, ex);
4077	>	checkCompletedWithWrappedException(dep, ex);
4078	>	assertSame(resultOf(src), resultOf(dep));
4079	>	}
4080
4081	<	f = new CompletableFuture<>();
4082	<	f2 = new CompletableFuture<>();
4083	<	f2.completeExceptionally(new CFException());
4084	<	g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
4085	<	f.complete(one);
4086	<	checkCompletedWithWrappedCFException(g);
4087	<	}
4081	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
4082	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
4083	>	fun : funs) {
4084	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4085	>	f.cancel(mayInterruptIfRunning);
4086	>	checkCancelled(f);
4087	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4088	>	checkCompletedWithWrappedCancellationException(src);
4089	>	CompletableFuture<?> dep = fun.apply(src);
4090	>	checkCompletedWithWrappedCancellationException(dep);
4091	>	assertSame(resultOf(src), resultOf(dep));
4092	>	}
4093
4094	<	/**
4095	<	* applyToEitherAsync result completes exceptionally if action does
4096	<	*/
4097	<	public void testApplyToEitherAsync3E() {
4098	<	CompletableFuture<Integer> f = new CompletableFuture<>();
4099	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
4100	<	FailingFunction r = new FailingFunction();
4101	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, r, new ThreadExecutor());
4102	<	f.complete(one);
4103	<	checkCompletedWithWrappedCFException(g);
4104	<	}
4094	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
4095	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
4096	>	fun : funs) {
4097	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4098	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4099	>	CompletableFuture<?> dep = fun.apply(src);
4100	>	f.cancel(mayInterruptIfRunning);
4101	>	checkCancelled(f);
4102	>	checkCompletedWithWrappedCancellationException(src);
4103	>	checkCompletedWithWrappedCancellationException(dep);
4104	>	assertSame(resultOf(src), resultOf(dep));
4105	>	}
4106	>	}}
4107
4108		/**
4109	<	* applyToEitherAsync result completes exceptionally if either source cancelled
4109	>	* Minimal completion stages throw UOE for most non-CompletionStage methods
4110		*/
4111	<	public void testApplyToEitherAsync4E() {
4112	<	CompletableFuture<Integer> f = new CompletableFuture<>();
4113	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
4114	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
4115	<	assertTrue(f.cancel(true));
4116	<	checkCompletedWithWrappedCancellationException(g);
4117	<
4118	<	f = new CompletableFuture<>();
4119	<	f2 = new CompletableFuture<>();
4120	<	assertTrue(f2.cancel(true));
4121	<	g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
4122	<	checkCompletedWithWrappedCancellationException(g);
4111	>	public void testMinimalCompletionStage_minimality() {
4112	>	if (!testImplementationDetails) return;
4113	>	Function<Method, String> toSignature =
4114	>	method -> method.getName() + Arrays.toString(method.getParameterTypes());
4115	>	Predicate<Method> isNotStatic =
4116	>	method -> (method.getModifiers() & Modifier.STATIC) == 0;
4117	>	List<Method> minimalMethods =
4118	>	Stream.of(Object.class, CompletionStage.class)
4119	>	.flatMap(klazz -> Stream.of(klazz.getMethods()))
4120	>	.filter(isNotStatic)
4121	>	.collect(Collectors.toList());
4122	>	// Methods from CompletableFuture permitted NOT to throw UOE
4123	>	String[] signatureWhitelist = {
4124	>	"newIncompleteFuture[]",
4125	>	"defaultExecutor[]",
4126	>	"minimalCompletionStage[]",
4127	>	"copy[]",
4128	>	};
4129	>	Set<String> permittedMethodSignatures =
4130	>	Stream.concat(minimalMethods.stream().map(toSignature),
4131	>	Stream.of(signatureWhitelist))
4132	>	.collect(Collectors.toSet());
4133	>	List<Method> allMethods = Stream.of(CompletableFuture.class.getMethods())
4134	>	.filter(isNotStatic)
4135	>	.filter(method -> !permittedMethodSignatures.contains(toSignature.apply(method)))
4136	>	.collect(Collectors.toList());
4137	>
4138	>	List<CompletionStage<Integer>> stages = new ArrayList<>();
4139	>	CompletionStage<Integer> min =
4140	>	new CompletableFuture<Integer>().minimalCompletionStage();
4141	>	stages.add(min);
4142	>	stages.add(min.thenApply(x -> x));
4143	>	stages.add(CompletableFuture.completedStage(1));
4144	>	stages.add(CompletableFuture.failedStage(new CFException()));
4145	>
4146	>	List<Method> bugs = new ArrayList<>();
4147	>	for (Method method : allMethods) {
4148	>	Class<?>[] parameterTypes = method.getParameterTypes();
4149	>	Object[] args = new Object[parameterTypes.length];
4150	>	// Manufacture boxed primitives for primitive params
4151	>	for (int i = 0; i < args.length; i++) {
4152	>	Class<?> type = parameterTypes[i];
4153	>	if (parameterTypes[i] == boolean.class)
4154	>	args[i] = false;
4155	>	else if (parameterTypes[i] == int.class)
4156	>	args[i] = 0;
4157	>	else if (parameterTypes[i] == long.class)
4158	>	args[i] = 0L;
4159	>	}
4160	>	for (CompletionStage<Integer> stage : stages) {
4161	>	try {
4162	>	method.invoke(stage, args);
4163	>	bugs.add(method);
4164	>	}
4165	>	catch (java.lang.reflect.InvocationTargetException expected) {
4166	>	if (! (expected.getCause() instanceof UnsupportedOperationException)) {
4167	>	bugs.add(method);
4168	>	// expected.getCause().printStackTrace();
4169	>	}
4170	>	}
4171	>	catch (ReflectiveOperationException bad) { throw new Error(bad); }
4172	>	}
4173	>	}
4174	>	if (!bugs.isEmpty())
4175	>	throw new Error("Methods did not throw UOE: " + bugs);
4176		}
4177
4178		/**
4179	<	* acceptEitherAsync result completes normally after normal
4180	<	* completion of sources
4179	>	* minimalStage.toCompletableFuture() returns a CompletableFuture that
4180	>	* is completed normally, with the same value, when source is.
4181		*/
4182	<	public void testAcceptEitherAsyncE() {
4182	>	public void testMinimalCompletionStage_toCompletableFuture_normalCompletion() {
4183	>	for (boolean createIncomplete : new boolean[] { true, false })
4184	>	for (Integer v1 : new Integer[] { 1, null })
4185	>	{
4186		CompletableFuture<Integer> f = new CompletableFuture<>();
4187	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
4188	<	IncAction r = new IncAction();
4189	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
4190	<	f.complete(one);
4191	<	checkCompletedNormally(g, null);
4192	<	assertEquals(r.value, 2);
4193	<
4194	<	r = new IncAction();
4195	<	f = new CompletableFuture<>();
4196	<	f.complete(one);
4197	<	f2 = new CompletableFuture<>();
2771	<	g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2772	<	checkCompletedNormally(g, null);
2773	<	assertEquals(r.value, 2);
2774	<	}
4187	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4188	>	if (!createIncomplete) assertTrue(f.complete(v1));
4189	>	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4190	>	if (createIncomplete) {
4191	>	checkIncomplete(f);
4192	>	checkIncomplete(g);
4193	>	assertTrue(f.complete(v1));
4194	>	}
4195	>	checkCompletedNormally(f, v1);
4196	>	checkCompletedNormally(g, v1);
4197	>	}}
4198
4199		/**
4200	<	* acceptEitherAsync result completes exceptionally after exceptional
4201	<	* completion of source
4200	>	* minimalStage.toCompletableFuture() returns a CompletableFuture that
4201	>	* is completed exceptionally when source is.
4202		*/
4203	<	public void testAcceptEitherAsync2E() {
4203	>	public void testMinimalCompletionStage_toCompletableFuture_exceptionalCompletion() {
4204	>	for (boolean createIncomplete : new boolean[] { true, false })
4205	>	{
4206	>	CFException ex = new CFException();
4207		CompletableFuture<Integer> f = new CompletableFuture<>();
4208	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
4209	<	IncAction r = new IncAction();
4210	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
4211	<	f.completeExceptionally(new CFException());
4212	<	checkCompletedWithWrappedCFException(g);
4213	<
4214	<	r = new IncAction();
4215	<	f = new CompletableFuture<>();
4216	<	f2 = new CompletableFuture<>();
4217	<	f2.completeExceptionally(new CFException());
4218	<	g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2793	<	f.complete(one);
2794	<	checkCompletedWithWrappedCFException(g);
2795	<	}
4208	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4209	>	if (!createIncomplete) f.completeExceptionally(ex);
4210	>	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4211	>	if (createIncomplete) {
4212	>	checkIncomplete(f);
4213	>	checkIncomplete(g);
4214	>	f.completeExceptionally(ex);
4215	>	}
4216	>	checkCompletedExceptionally(f, ex);
4217	>	checkCompletedWithWrappedException(g, ex);
4218	>	}}
4219
4220		/**
4221	<	* acceptEitherAsync result completes exceptionally if action does
4221	>	* minimalStage.toCompletableFuture() gives mutable CompletableFuture
4222		*/
4223	<	public void testAcceptEitherAsync3E() {
4223	>	public void testMinimalCompletionStage_toCompletableFuture_mutable() {
4224	>	for (Integer v1 : new Integer[] { 1, null })
4225	>	{
4226		CompletableFuture<Integer> f = new CompletableFuture<>();
4227	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
4228	<	FailingConsumer r = new FailingConsumer();
4229	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
4230	<	f.complete(one);
4231	<	checkCompletedWithWrappedCFException(g);
4232	<	}
4227	>	CompletionStage minimal = f.minimalCompletionStage();
4228	>	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4229	>	assertTrue(g.complete(v1));
4230	>	checkCompletedNormally(g, v1);
4231	>	checkIncomplete(f);
4232	>	checkIncomplete(minimal.toCompletableFuture());
4233	>	}}
4234
4235		/**
4236	<	* acceptEitherAsync result completes exceptionally if either
2811	<	* source cancelled
4236	>	* minimalStage.toCompletableFuture().join() awaits completion
4237		*/
4238	<	public void testAcceptEitherAsync4E() {
4238	>	public void testMinimalCompletionStage_toCompletableFuture_join() throws Exception {
4239	>	for (boolean createIncomplete : new boolean[] { true, false })
4240	>	for (Integer v1 : new Integer[] { 1, null })
4241	>	{
4242		CompletableFuture<Integer> f = new CompletableFuture<>();
4243	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
4244	<	IncAction r = new IncAction();
4245	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
4246	<	assertTrue(f.cancel(true));
4247	<	checkCompletedWithWrappedCancellationException(g);
4248	<
4249	<	r = new IncAction();
4250	<	f = new CompletableFuture<>();
4251	<	f2 = new CompletableFuture<>();
4252	<	assertTrue(f2.cancel(true));
4253	<	g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
4254	<	checkCompletedWithWrappedCancellationException(g);
4243	>	if (!createIncomplete) assertTrue(f.complete(v1));
4244	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4245	>	if (createIncomplete) assertTrue(f.complete(v1));
4246	>	assertEquals(v1, minimal.toCompletableFuture().join());
4247	>	assertEquals(v1, minimal.toCompletableFuture().get());
4248	>	checkCompletedNormally(minimal.toCompletableFuture(), v1);
4249	>	}}
4250	>
4251	>	/**
4252	>	* Completion of a toCompletableFuture copy of a minimal stage
4253	>	* does not complete its source.
4254	>	*/
4255	>	public void testMinimalCompletionStage_toCompletableFuture_oneWayPropagation() {
4256	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4257	>	CompletionStage<Integer> g = f.minimalCompletionStage();
4258	>	assertTrue(g.toCompletableFuture().complete(1));
4259	>	assertTrue(g.toCompletableFuture().complete(null));
4260	>	assertTrue(g.toCompletableFuture().cancel(true));
4261	>	assertTrue(g.toCompletableFuture().cancel(false));
4262	>	assertTrue(g.toCompletableFuture().completeExceptionally(new CFException()));
4263	>	checkIncomplete(g.toCompletableFuture());
4264	>	f.complete(1);
4265	>	checkCompletedNormally(g.toCompletableFuture(), 1);
4266		}
4267
4268	<	/**
4269	<	* runAfterEitherAsync result completes normally after normal
4270	<	* completion of sources
4271	<	*/
4272	<	public void testRunAfterEitherAsyncE() {
4273	<	CompletableFuture<Integer> f = new CompletableFuture<>();
4274	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
4275	<	Noop r = new Noop();
4276	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2838	<	f.complete(one);
2839	<	checkCompletedNormally(g, null);
2840	<	assertTrue(r.ran);
2841	<
2842	<	r = new Noop();
2843	<	f = new CompletableFuture<>();
2844	<	f.complete(one);
2845	<	f2 = new CompletableFuture<>();
2846	<	g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2847	<	checkCompletedNormally(g, null);
2848	<	assertTrue(r.ran);
4268	>	/** Demo utility method for external reliable toCompletableFuture */
4269	>	static <T> CompletableFuture<T> toCompletableFuture(CompletionStage<T> stage) {
4270	>	CompletableFuture<T> f = new CompletableFuture<>();
4271	>	stage.handle((T t, Throwable ex) -> {
4272	>	if (ex != null) f.completeExceptionally(ex);
4273	>	else f.complete(t);
4274	>	return null;
4275	>	});
4276	>	return f;
4277		}
4278
4279	<	/**
4280	<	* runAfterEitherAsync result completes exceptionally after exceptional
4281	<	* completion of source
2854	<	*/
2855	<	public void testRunAfterEitherAsync2E() {
2856	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2857	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2858	<	Noop r = new Noop();
2859	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2860	<	f.completeExceptionally(new CFException());
2861	<	checkCompletedWithWrappedCFException(g);
2862	<
2863	<	r = new Noop();
2864	<	f = new CompletableFuture<>();
2865	<	f2 = new CompletableFuture<>();
2866	<	f2.completeExceptionally(new CFException());
2867	<	g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2868	<	f.complete(one);
2869	<	checkCompletedWithWrappedCFException(g);
4279	>	/** Demo utility method to join a CompletionStage */
4280	>	static <T> T join(CompletionStage<T> stage) {
4281	>	return toCompletableFuture(stage).join();
4282		}
4283
4284		/**
4285	<	* runAfterEitherAsync result completes exceptionally if action does
4285	>	* Joining a minimal stage "by hand" works
4286		*/
4287	<	public void testRunAfterEitherAsync3E() {
4287	>	public void testMinimalCompletionStage_join_by_hand() {
4288	>	for (boolean createIncomplete : new boolean[] { true, false })
4289	>	for (Integer v1 : new Integer[] { 1, null })
4290	>	{
4291		CompletableFuture<Integer> f = new CompletableFuture<>();
4292	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
4293	<	FailingNoop r = new FailingNoop();
4294	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
4295	<	f.complete(one);
4296	<	checkCompletedWithWrappedCFException(g);
4297	<	}
4292	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4293	>	CompletableFuture<Integer> g = new CompletableFuture<>();
4294	>	if (!createIncomplete) assertTrue(f.complete(v1));
4295	>	minimal.thenAccept(x -> g.complete(x));
4296	>	if (createIncomplete) assertTrue(f.complete(v1));
4297	>	g.join();
4298	>	checkCompletedNormally(g, v1);
4299	>	checkCompletedNormally(f, v1);
4300	>	assertEquals(v1, join(minimal));
4301	>	}}
4302
4303	<	/**
4304	<	* runAfterEitherAsync result completes exceptionally if either
4305	<	* source cancelled
4306	<	*/
4307	<	public void testRunAfterEitherAsync4E() {
4308	<	CompletableFuture<Integer> f = new CompletableFuture<>();
4309	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
4310	<	Noop r = new Noop();
4311	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
4312	<	assertTrue(f.cancel(true));
4313	<	checkCompletedWithWrappedCancellationException(g);
4303	>	static class Monad {
4304	>	static class ZeroException extends RuntimeException {
4305	>	public ZeroException() { super("monadic zero"); }
4306	>	}
4307	>	// "return", "unit"
4308	>	static <T> CompletableFuture<T> unit(T value) {
4309	>	return completedFuture(value);
4310	>	}
4311	>	// monadic zero ?
4312	>	static <T> CompletableFuture<T> zero() {
4313	>	return failedFuture(new ZeroException());
4314	>	}
4315	>	// >=>
4316	>	static <T,U,V> Function<T, CompletableFuture<V>> compose
4317	>	(Function<T, CompletableFuture<U>> f,
4318	>	Function<U, CompletableFuture<V>> g) {
4319	>	return x -> f.apply(x).thenCompose(g);
4320	>	}
4321
4322	<	r = new Noop();
4323	<	f = new CompletableFuture<>();
4324	<	f2 = new CompletableFuture<>();
4325	<	assertTrue(f2.cancel(true));
4326	<	g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
4327	<	checkCompletedWithWrappedCancellationException(g);
4328	<	}
4322	>	static void assertZero(CompletableFuture<?> f) {
4323	>	try {
4324	>	f.getNow(null);
4325	>	throw new AssertionError("should throw");
4326	>	} catch (CompletionException success) {
4327	>	assertTrue(success.getCause() instanceof ZeroException);
4328	>	}
4329	>	}
4330
4331	<	/**
4332	<	* thenComposeAsync result completes normally after normal
4333	<	* completion of source
4334	<	*/
4335	<	public void testThenComposeAsyncE() {
4336	<	CompletableFuture<Integer> f = new CompletableFuture<>();
4337	<	CompletableFutureInc r = new CompletableFutureInc();
4338	<	CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
4339	<	f.complete(one);
4340	<	checkCompletedNormally(g, two);
4341	<	}
4331	>	static <T> void assertFutureEquals(CompletableFuture<T> f,
4332	>	CompletableFuture<T> g) {
4333	>	T fval = null, gval = null;
4334	>	Throwable fex = null, gex = null;
4335	>
4336	>	try { fval = f.get(); }
4337	>	catch (ExecutionException ex) { fex = ex.getCause(); }
4338	>	catch (Throwable ex) { fex = ex; }
4339	>
4340	>	try { gval = g.get(); }
4341	>	catch (ExecutionException ex) { gex = ex.getCause(); }
4342	>	catch (Throwable ex) { gex = ex; }
4343	>
4344	>	if (fex != null || gex != null)
4345	>	assertSame(fex.getClass(), gex.getClass());
4346	>	else
4347	>	assertEquals(fval, gval);
4348	>	}
4349
4350	<	/**
4351	<	* thenComposeAsync result completes exceptionally after
4352	<	* exceptional completion of source
2919	<	*/
2920	<	public void testThenComposeAsync2E() {
2921	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2922	<	CompletableFutureInc r = new CompletableFutureInc();
2923	<	CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
2924	<	f.completeExceptionally(new CFException());
2925	<	checkCompletedWithWrappedCFException(g);
2926	<	}
4350	>	static class PlusFuture<T> extends CompletableFuture<T> {
4351	>	AtomicReference<Throwable> firstFailure = new AtomicReference<>(null);
4352	>	}
4353
4354	<	/**
4355	<	* thenComposeAsync result completes exceptionally if action does
4356	<	*/
4357	<	public void testThenComposeAsync3E() {
4358	<	CompletableFuture<Integer> f = new CompletableFuture<>();
4359	<	FailingCompletableFutureFunction r = new FailingCompletableFutureFunction();
4360	<	CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
4361	<	f.complete(one);
4362	<	checkCompletedWithWrappedCFException(g);
4354	>	/** Implements "monadic plus". */
4355	>	static <T> CompletableFuture<T> plus(CompletableFuture<? extends T> f,
4356	>	CompletableFuture<? extends T> g) {
4357	>	PlusFuture<T> plus = new PlusFuture<T>();
4358	>	BiConsumer<T, Throwable> action = (T result, Throwable ex) -> {
4359	>	try {
4360	>	if (ex == null) {
4361	>	if (plus.complete(result))
4362	>	if (plus.firstFailure.get() != null)
4363	>	plus.firstFailure.set(null);
4364	>	}
4365	>	else if (plus.firstFailure.compareAndSet(null, ex)) {
4366	>	if (plus.isDone())
4367	>	plus.firstFailure.set(null);
4368	>	}
4369	>	else {
4370	>	// first failure has precedence
4371	>	Throwable first = plus.firstFailure.getAndSet(null);
4372	>
4373	>	// may fail with "Self-suppression not permitted"
4374	>	try { first.addSuppressed(ex); }
4375	>	catch (Exception ignored) {}
4376	>
4377	>	plus.completeExceptionally(first);
4378	>	}
4379	>	} catch (Throwable unexpected) {
4380	>	plus.completeExceptionally(unexpected);
4381	>	}
4382	>	};
4383	>	f.whenComplete(action);
4384	>	g.whenComplete(action);
4385	>	return plus;
4386	>	}
4387		}
4388
4389		/**
4390	<	* thenComposeAsync result completes exceptionally if source cancelled
4390	>	* CompletableFuture is an additive monad - sort of.
4391	>	* https://en.wikipedia.org/wiki/Monad_(functional_programming)#Additive_monads
4392		*/
4393	<	public void testThenComposeAsync4E() {
4394	<	CompletableFuture<Integer> f = new CompletableFuture<>();
4395	<	CompletableFutureInc r = new CompletableFutureInc();
4396	<	CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
4397	<	assertTrue(f.cancel(true));
4398	<	checkCompletedWithWrappedCancellationException(g);
4399	<	}
4400	<
4401	<	// other static methods
4393	>	public void testAdditiveMonad() throws Throwable {
4394	>	Function<Long, CompletableFuture<Long>> unit = Monad::unit;
4395	>	CompletableFuture<Long> zero = Monad.zero();
4396	>
4397	>	// Some mutually non-commutative functions
4398	>	Function<Long, CompletableFuture<Long>> triple
4399	>	= x -> Monad.unit(3 * x);
4400	>	Function<Long, CompletableFuture<Long>> inc
4401	>	= x -> Monad.unit(x + 1);
4402	>
4403	>	// unit is a right identity: m >>= unit === m
4404	>	Monad.assertFutureEquals(inc.apply(5L).thenCompose(unit),
4405	>	inc.apply(5L));
4406	>	// unit is a left identity: (unit x) >>= f === f x
4407	>	Monad.assertFutureEquals(unit.apply(5L).thenCompose(inc),
4408	>	inc.apply(5L));
4409	>
4410	>	// associativity: (m >>= f) >>= g === m >>= ( \x -> (f x >>= g) )
4411	>	Monad.assertFutureEquals(
4412	>	unit.apply(5L).thenCompose(inc).thenCompose(triple),
4413	>	unit.apply(5L).thenCompose(x -> inc.apply(x).thenCompose(triple)));
4414	>
4415	>	// The case for CompletableFuture as an additive monad is weaker...
4416	>
4417	>	// zero is a monadic zero
4418	>	Monad.assertZero(zero);
4419	>
4420	>	// left zero: zero >>= f === zero
4421	>	Monad.assertZero(zero.thenCompose(inc));
4422	>	// right zero: f >>= (\x -> zero) === zero
4423	>	Monad.assertZero(inc.apply(5L).thenCompose(x -> zero));
4424	>
4425	>	// f plus zero === f
4426	>	Monad.assertFutureEquals(Monad.unit(5L),
4427	>	Monad.plus(Monad.unit(5L), zero));
4428	>	// zero plus f === f
4429	>	Monad.assertFutureEquals(Monad.unit(5L),
4430	>	Monad.plus(zero, Monad.unit(5L)));
4431	>	// zero plus zero === zero
4432	>	Monad.assertZero(Monad.plus(zero, zero));
4433	>	{
4434	>	CompletableFuture<Long> f = Monad.plus(Monad.unit(5L),
4435	>	Monad.unit(8L));
4436	>	// non-determinism
4437	>	assertTrue(f.get() == 5L || f.get() == 8L);
4438	>	}
4439
4440	<	/**
4441	<	* allOf(no component futures) returns a future completed normally
4442	<	* with the value null
4443	<	*/
4444	<	public void testAllOf_empty() throws Exception {
4445	<	CompletableFuture<Void> f = CompletableFuture.allOf();
4446	<	checkCompletedNormally(f, null);
4440	>	CompletableFuture<Long> godot = new CompletableFuture<>();
4441	>	// f plus godot === f (doesn't wait for godot)
4442	>	Monad.assertFutureEquals(Monad.unit(5L),
4443	>	Monad.plus(Monad.unit(5L), godot));
4444	>	// godot plus f === f (doesn't wait for godot)
4445	>	Monad.assertFutureEquals(Monad.unit(5L),
4446	>	Monad.plus(godot, Monad.unit(5L)));
4447		}
4448
4449	<	/**
4450	<	* allOf returns a future completed normally with the value null
4451	<	* when all components complete normally
4452	<	*/
4453	<	public void testAllOf_normal() throws Exception {
4454	<	for (int k = 1; k < 20; ++k) {
4455	<	CompletableFuture<Integer>[] fs = (CompletableFuture<Integer>[]) new CompletableFuture[k];
4456	<	for (int i = 0; i < k; ++i)
4457	<	fs[i] = new CompletableFuture<>();
4458	<	CompletableFuture<Void> f = CompletableFuture.allOf(fs);
4459	<	for (int i = 0; i < k; ++i) {
4460	<	checkIncomplete(f);
4461	<	checkIncomplete(CompletableFuture.allOf(fs));
4462	<	fs[i].complete(one);
4463	<	}
4464	<	checkCompletedNormally(f, null);
4465	<	checkCompletedNormally(CompletableFuture.allOf(fs), null);
4449	>	/** Test long recursive chains of CompletableFutures with cascading completions */
4450	>	@SuppressWarnings("FutureReturnValueIgnored")
4451	>	public void testRecursiveChains() throws Throwable {
4452	>	for (ExecutionMode m : ExecutionMode.values())
4453	>	for (boolean addDeadEnds : new boolean[] { true, false })
4454	>	{
4455	>	final int val = 42;
4456	>	final int n = expensiveTests ? 1_000 : 2;
4457	>	CompletableFuture<Integer> head = new CompletableFuture<>();
4458	>	CompletableFuture<Integer> tail = head;
4459	>	for (int i = 0; i < n; i++) {
4460	>	if (addDeadEnds) m.thenApply(tail, v -> v + 1);
4461	>	tail = m.thenApply(tail, v -> v + 1);
4462	>	if (addDeadEnds) m.applyToEither(tail, tail, v -> v + 1);
4463	>	tail = m.applyToEither(tail, tail, v -> v + 1);
4464	>	if (addDeadEnds) m.thenCombine(tail, tail, (v, w) -> v + 1);
4465	>	tail = m.thenCombine(tail, tail, (v, w) -> v + 1);
4466		}
4467	+	head.complete(val);
4468	+	assertEquals(val + 3 * n, (int) tail.join());
4469	+	}}
4470	+
4471	+	/**
4472	+	* A single CompletableFuture with many dependents.
4473	+	* A demo of scalability - runtime is O(n).
4474	+	*/
4475	+	@SuppressWarnings("FutureReturnValueIgnored")
4476	+	public void testManyDependents() throws Throwable {
4477	+	final int n = expensiveTests ? 1_000_000 : 10;
4478	+	final CompletableFuture<Void> head = new CompletableFuture<>();
4479	+	final CompletableFuture<Void> complete = CompletableFuture.completedFuture((Void)null);
4480	+	final AtomicInteger count = new AtomicInteger(0);
4481	+	for (int i = 0; i < n; i++) {
4482	+	head.thenRun(() -> count.getAndIncrement());
4483	+	head.thenAccept(x -> count.getAndIncrement());
4484	+	head.thenApply(x -> count.getAndIncrement());
4485	+
4486	+	head.runAfterBoth(complete, () -> count.getAndIncrement());
4487	+	head.thenAcceptBoth(complete, (x, y) -> count.getAndIncrement());
4488	+	head.thenCombine(complete, (x, y) -> count.getAndIncrement());
4489	+	complete.runAfterBoth(head, () -> count.getAndIncrement());
4490	+	complete.thenAcceptBoth(head, (x, y) -> count.getAndIncrement());
4491	+	complete.thenCombine(head, (x, y) -> count.getAndIncrement());
4492	+
4493	+	head.runAfterEither(new CompletableFuture<Void>(), () -> count.getAndIncrement());
4494	+	head.acceptEither(new CompletableFuture<Void>(), x -> count.getAndIncrement());
4495	+	head.applyToEither(new CompletableFuture<Void>(), x -> count.getAndIncrement());
4496	+	new CompletableFuture<Void>().runAfterEither(head, () -> count.getAndIncrement());
4497	+	new CompletableFuture<Void>().acceptEither(head, x -> count.getAndIncrement());
4498	+	new CompletableFuture<Void>().applyToEither(head, x -> count.getAndIncrement());
4499	+	}
4500	+	head.complete(null);
4501	+	assertEquals(5 * 3 * n, count.get());
4502		}
4503
4504	<	/**
4505	<	* anyOf(no component futures) returns an incomplete future
4506	<	*/
4507	<	public void testAnyOf_empty() throws Exception {
4508	<	CompletableFuture<Object> f = CompletableFuture.anyOf();
4509	<	checkIncomplete(f);
4510	<	}
4511	<
4512	<	/**
4513	<	* anyOf returns a future completed normally with a value when
4514	<	* a component future does
4515	<	*/
4516	<	public void testAnyOf_normal() throws Exception {
4517	<	for (int k = 0; k < 10; ++k) {
4518	<	CompletableFuture[] fs = new CompletableFuture[k];
4519	<	for (int i = 0; i < k; ++i)
4520	<	fs[i] = new CompletableFuture<>();
4521	<	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
4522	<	checkIncomplete(f);
4523	<	for (int i = 0; i < k; ++i) {
4524	<	fs[i].complete(one);
4525	<	checkCompletedNormally(f, one);
3003	<	checkCompletedNormally(CompletableFuture.anyOf(fs), one);
3004	<	}
4504	>	/** ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest tck */
4505	>	@SuppressWarnings("FutureReturnValueIgnored")
4506	>	public void testCoCompletionGarbageRetention() throws Throwable {
4507	>	final int n = expensiveTests ? 1_000_000 : 10;
4508	>	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
4509	>	CompletableFuture<Integer> f;
4510	>	for (int i = 0; i < n; i++) {
4511	>	f = new CompletableFuture<>();
4512	>	f.runAfterEither(incomplete, () -> {});
4513	>	f.complete(null);
4514	>
4515	>	f = new CompletableFuture<>();
4516	>	f.acceptEither(incomplete, x -> {});
4517	>	f.complete(null);
4518	>
4519	>	f = new CompletableFuture<>();
4520	>	f.applyToEither(incomplete, x -> x);
4521	>	f.complete(null);
4522	>
4523	>	f = new CompletableFuture<>();
4524	>	CompletableFuture.anyOf(f, incomplete);
4525	>	f.complete(null);
4526		}
3006	–	}
4527
4528	<	/**
4529	<	* anyOf result completes exceptionally when any component does.
4530	<	*/
4531	<	public void testAnyOf_exceptional() throws Exception {
4532	<	for (int k = 0; k < 10; ++k) {
4533	<	CompletableFuture[] fs = new CompletableFuture[k];
4534	<	for (int i = 0; i < k; ++i)
4535	<	fs[i] = new CompletableFuture<>();
4536	<	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
4537	<	checkIncomplete(f);
4538	<	for (int i = 0; i < k; ++i) {
4539	<	fs[i].completeExceptionally(new CFException());
4540	<	checkCompletedWithWrappedCFException(f);
4541	<	checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
4542	<	}
4528	>	for (int i = 0; i < n; i++) {
4529	>	f = new CompletableFuture<>();
4530	>	incomplete.runAfterEither(f, () -> {});
4531	>	f.complete(null);
4532	>
4533	>	f = new CompletableFuture<>();
4534	>	incomplete.acceptEither(f, x -> {});
4535	>	f.complete(null);
4536	>
4537	>	f = new CompletableFuture<>();
4538	>	incomplete.applyToEither(f, x -> x);
4539	>	f.complete(null);
4540	>
4541	>	f = new CompletableFuture<>();
4542	>	CompletableFuture.anyOf(incomplete, f);
4543	>	f.complete(null);
4544		}
4545		}
4546
4547		/**
4548	<	* Completion methods throw NullPointerException with null arguments
4549	<	*/
4550	<	public void testNPE() {
4551	<	CompletableFuture<Integer> f = new CompletableFuture<>();
4552	<	CompletableFuture<Integer> g = new CompletableFuture<>();
4553	<	CompletableFuture<Integer> nullFuture = (CompletableFuture<Integer>)null;
4554	<	CompletableFuture<?> h;
4555	<	ThreadExecutor exec = new ThreadExecutor();
4556	<
4557	<	Runnable[] throwingActions = {
4558	<	() -> CompletableFuture.supplyAsync(null),
4559	<	() -> CompletableFuture.supplyAsync(null, exec),
4560	<	() -> CompletableFuture.supplyAsync(supplyOne, null),
4561	<
4562	<	() -> CompletableFuture.runAsync(null),
4563	<	() -> CompletableFuture.runAsync(null, exec),
4564	<	() -> CompletableFuture.runAsync(() -> {}, null),
4565	<
4566	<	() -> f.completeExceptionally(null),
4567	<
4568	<	() -> f.thenApply(null),
4569	<	() -> f.thenApplyAsync(null),
4570	<	() -> f.thenApplyAsync((x) -> x, null),
4571	<	() -> f.thenApplyAsync(null, exec),
4572	<
4573	<	() -> f.thenAccept(null),
4574	<	() -> f.thenAcceptAsync(null),
4575	<	() -> f.thenAcceptAsync((x) -> {} , null),
4576	<	() -> f.thenAcceptAsync(null, exec),
4577	<
4578	<	() -> f.thenRun(null),
4579	<	() -> f.thenRunAsync(null),
4580	<	() -> f.thenRunAsync(() -> {} , null),
4581	<	() -> f.thenRunAsync(null, exec),
4582	<
4583	<	() -> f.thenCombine(g, null),
4584	<	() -> f.thenCombineAsync(g, null),
4585	<	() -> f.thenCombineAsync(g, null, exec),
4586	<	() -> f.thenCombine(nullFuture, (x, y) -> x),
4587	<	() -> f.thenCombineAsync(nullFuture, (x, y) -> x),
4588	<	() -> f.thenCombineAsync(nullFuture, (x, y) -> x, exec),
4589	<	() -> f.thenCombineAsync(g, (x, y) -> x, null),
4590	<
4591	<	() -> f.thenAcceptBoth(g, null),
4592	<	() -> f.thenAcceptBothAsync(g, null),
4593	<	() -> f.thenAcceptBothAsync(g, null, exec),
4594	<	() -> f.thenAcceptBoth(nullFuture, (x, y) -> {}),
4595	<	() -> f.thenAcceptBothAsync(nullFuture, (x, y) -> {}),
4596	<	() -> f.thenAcceptBothAsync(nullFuture, (x, y) -> {}, exec),
4597	<	() -> f.thenAcceptBothAsync(g, (x, y) -> {}, null),
4598	<
4599	<	() -> f.runAfterBoth(g, null),
4600	<	() -> f.runAfterBothAsync(g, null),
4601	<	() -> f.runAfterBothAsync(g, null, exec),
4602	<	() -> f.runAfterBoth(nullFuture, () -> {}),
4603	<	() -> f.runAfterBothAsync(nullFuture, () -> {}),
4604	<	() -> f.runAfterBothAsync(nullFuture, () -> {}, exec),
4605	<	() -> f.runAfterBothAsync(g, () -> {}, null),
4606	<
4607	<	() -> f.applyToEither(g, null),
4608	<	() -> f.applyToEitherAsync(g, null),
4609	<	() -> f.applyToEitherAsync(g, null, exec),
4610	<	() -> f.applyToEither(nullFuture, (x) -> x),
4611	<	() -> f.applyToEitherAsync(nullFuture, (x) -> x),
4612	<	() -> f.applyToEitherAsync(nullFuture, (x) -> x, exec),
4613	<	() -> f.applyToEitherAsync(g, (x) -> x, null),
4614	<
4615	<	() -> f.acceptEither(g, null),
4616	<	() -> f.acceptEitherAsync(g, null),
4617	<	() -> f.acceptEitherAsync(g, null, exec),
4618	<	() -> f.acceptEither(nullFuture, (x) -> {}),
4619	<	() -> f.acceptEitherAsync(nullFuture, (x) -> {}),
4620	<	() -> f.acceptEitherAsync(nullFuture, (x) -> {}, exec),
4621	<	() -> f.acceptEitherAsync(g, (x) -> {}, null),
4622	<
4623	<	() -> f.runAfterEither(g, null),
4624	<	() -> f.runAfterEitherAsync(g, null),
4625	<	() -> f.runAfterEitherAsync(g, null, exec),
4626	<	() -> f.runAfterEither(nullFuture, () -> {}),
4627	<	() -> f.runAfterEitherAsync(nullFuture, () -> {}),
4628	<	() -> f.runAfterEitherAsync(nullFuture, () -> {}, exec),
4629	<	() -> f.runAfterEitherAsync(g, () -> {}, null),
4630	<
4631	<	() -> f.thenCompose(null),
4632	<	() -> f.thenComposeAsync(null),
4633	<	() -> f.thenComposeAsync(new CompletableFutureInc(), null),
4634	<	() -> f.thenComposeAsync(null, exec),
4635	<
4636	<	() -> f.exceptionally(null),
4637	<
4638	<	() -> f.handle(null),
4639	<
4640	<	() -> CompletableFuture.allOf((CompletableFuture<?>)null),
4641	<	() -> CompletableFuture.allOf((CompletableFuture<?>[])null),
4642	<	() -> CompletableFuture.allOf(f, null),
4643	<	() -> CompletableFuture.allOf(null, f),
4644	<
4645	<	() -> CompletableFuture.anyOf((CompletableFuture<?>)null),
4646	<	() -> CompletableFuture.anyOf((CompletableFuture<?>[])null),
4647	<	() -> CompletableFuture.anyOf(f, null),
4648	<	() -> CompletableFuture.anyOf(null, f),
4649	<
4650	<	() -> f.obtrudeException(null),
4651	<	};
4652	<
4653	<	assertThrows(NullPointerException.class, throwingActions);
4654	<	assertEquals(0, exec.count.get());
4548	>	* Reproduction recipe for:
4549	>	* 8160402: Garbage retention with CompletableFuture.anyOf
4550	>	* 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
4551	>	*/
4552	>	public void testAnyOfGarbageRetention() throws Throwable {
4553	>	for (Integer v : new Integer[] { 1, null })
4554	>	{
4555	>	final int n = expensiveTests ? 100_000 : 10;
4556	>	CompletableFuture<Integer>[] fs
4557	>	= (CompletableFuture<Integer>[]) new CompletableFuture<?>[100];
4558	>	for (int i = 0; i < fs.length; i++)
4559	>	fs[i] = new CompletableFuture<>();
4560	>	fs[fs.length - 1].complete(v);
4561	>	for (int i = 0; i < n; i++)
4562	>	checkCompletedNormally(CompletableFuture.anyOf(fs), v);
4563	>	}}
4564	>
4565	>	/**
4566	>	* Checks for garbage retention with allOf.
4567	>	*
4568	>	* As of 2016-07, fails with OOME:
4569	>	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledAllOfGarbageRetention tck
4570	>	*/
4571	>	public void testCancelledAllOfGarbageRetention() throws Throwable {
4572	>	final int n = expensiveTests ? 100_000 : 10;
4573	>	CompletableFuture<Integer>[] fs
4574	>	= (CompletableFuture<Integer>[]) new CompletableFuture<?>[100];
4575	>	for (int i = 0; i < fs.length; i++)
4576	>	fs[i] = new CompletableFuture<>();
4577	>	for (int i = 0; i < n; i++)
4578	>	assertTrue(CompletableFuture.allOf(fs).cancel(false));
4579	>	}
4580	>
4581	>	/**
4582	>	* Checks for garbage retention when a dependent future is
4583	>	* cancelled and garbage-collected.
4584	>	* 8161600: Garbage retention when source CompletableFutures are never completed
4585	>	*
4586	>	* As of 2016-07, fails with OOME:
4587	>	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledGarbageRetention tck
4588	>	*/
4589	>	public void testCancelledGarbageRetention() throws Throwable {
4590	>	final int n = expensiveTests ? 100_000 : 10;
4591	>	CompletableFuture<Integer> neverCompleted = new CompletableFuture<>();
4592	>	for (int i = 0; i < n; i++)
4593	>	assertTrue(neverCompleted.thenRun(() -> {}).cancel(true));
4594	>	}
4595	>
4596	>	/**
4597	>	* Checks for garbage retention when MinimalStage.toCompletableFuture()
4598	>	* is invoked many times.
4599	>	* 8161600: Garbage retention when source CompletableFutures are never completed
4600	>	*
4601	>	* As of 2016-07, fails with OOME:
4602	>	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testToCompletableFutureGarbageRetention tck
4603	>	*/
4604	>	public void testToCompletableFutureGarbageRetention() throws Throwable {
4605	>	final int n = expensiveTests ? 900_000 : 10;
4606	>	CompletableFuture<Integer> neverCompleted = new CompletableFuture<>();
4607	>	CompletionStage minimal = neverCompleted.minimalCompletionStage();
4608	>	for (int i = 0; i < n; i++)
4609	>	assertTrue(minimal.toCompletableFuture().cancel(true));
4610	>	}
4611	>
4612	>	//     static <U> U join(CompletionStage<U> stage) {
4613	>	//         CompletableFuture<U> f = new CompletableFuture<>();
4614	>	//         stage.whenComplete((v, ex) -> {
4615	>	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
4616	>	//         });
4617	>	//         return f.join();
4618	>	//     }
4619	>
4620	>	//     static <U> boolean isDone(CompletionStage<U> stage) {
4621	>	//         CompletableFuture<U> f = new CompletableFuture<>();
4622	>	//         stage.whenComplete((v, ex) -> {
4623	>	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
4624	>	//         });
4625	>	//         return f.isDone();
4626	>	//     }
4627	>
4628	>	//     static <U> U join2(CompletionStage<U> stage) {
4629	>	//         return stage.toCompletableFuture().copy().join();
4630	>	//     }
4631	>
4632	>	//     static <U> boolean isDone2(CompletionStage<U> stage) {
4633	>	//         return stage.toCompletableFuture().copy().isDone();
4634	>	//     }
4635	>
4636	>	// For testing default implementations
4637	>	// Only non-default interface methods defined.
4638	>	static final class DelegatedCompletionStage<T> implements CompletionStage<T> {
4639	>	final CompletableFuture<T> cf;
4640	>	DelegatedCompletionStage(CompletableFuture<T> cf) { this.cf = cf; }
4641	>	public CompletableFuture<T> toCompletableFuture() {
4642	>	return cf; }
4643	>	public CompletionStage<Void> thenRun
4644	>	(Runnable action) {
4645	>	return cf.thenRun(action); }
4646	>	public CompletionStage<Void> thenRunAsync
4647	>	(Runnable action) {
4648	>	return cf.thenRunAsync(action); }
4649	>	public CompletionStage<Void> thenRunAsync
4650	>	(Runnable action,
4651	>	Executor executor) {
4652	>	return cf.thenRunAsync(action, executor); }
4653	>	public CompletionStage<Void> thenAccept
4654	>	(Consumer<? super T> action) {
4655	>	return cf.thenAccept(action); }
4656	>	public CompletionStage<Void> thenAcceptAsync
4657	>	(Consumer<? super T> action) {
4658	>	return cf.thenAcceptAsync(action); }
4659	>	public CompletionStage<Void> thenAcceptAsync
4660	>	(Consumer<? super T> action,
4661	>	Executor executor) {
4662	>	return cf.thenAcceptAsync(action, executor); }
4663	>	public <U> CompletionStage<U> thenApply
4664	>	(Function<? super T,? extends U> a) {
4665	>	return cf.thenApply(a); }
4666	>	public <U> CompletionStage<U> thenApplyAsync
4667	>	(Function<? super T,? extends U> fn) {
4668	>	return cf.thenApplyAsync(fn); }
4669	>	public <U> CompletionStage<U> thenApplyAsync
4670	>	(Function<? super T,? extends U> fn,
4671	>	Executor executor) {
4672	>	return cf.thenApplyAsync(fn, executor); }
4673	>	public <U,V> CompletionStage<V> thenCombine
4674	>	(CompletionStage<? extends U> other,
4675	>	BiFunction<? super T,? super U,? extends V> fn) {
4676	>	return cf.thenCombine(other, fn); }
4677	>	public <U,V> CompletionStage<V> thenCombineAsync
4678	>	(CompletionStage<? extends U> other,
4679	>	BiFunction<? super T,? super U,? extends V> fn) {
4680	>	return cf.thenCombineAsync(other, fn); }
4681	>	public <U,V> CompletionStage<V> thenCombineAsync
4682	>	(CompletionStage<? extends U> other,
4683	>	BiFunction<? super T,? super U,? extends V> fn,
4684	>	Executor executor) {
4685	>	return cf.thenCombineAsync(other, fn, executor); }
4686	>	public <U> CompletionStage<Void> thenAcceptBoth
4687	>	(CompletionStage<? extends U> other,
4688	>	BiConsumer<? super T, ? super U> action) {
4689	>	return cf.thenAcceptBoth(other, action); }
4690	>	public <U> CompletionStage<Void> thenAcceptBothAsync
4691	>	(CompletionStage<? extends U> other,
4692	>	BiConsumer<? super T, ? super U> action) {
4693	>	return cf.thenAcceptBothAsync(other, action); }
4694	>	public <U> CompletionStage<Void> thenAcceptBothAsync
4695	>	(CompletionStage<? extends U> other,
4696	>	BiConsumer<? super T, ? super U> action,
4697	>	Executor executor) {
4698	>	return cf.thenAcceptBothAsync(other, action, executor); }
4699	>	public CompletionStage<Void> runAfterBoth
4700	>	(CompletionStage<?> other,
4701	>	Runnable action) {
4702	>	return cf.runAfterBoth(other, action); }
4703	>	public CompletionStage<Void> runAfterBothAsync
4704	>	(CompletionStage<?> other,
4705	>	Runnable action) {
4706	>	return cf.runAfterBothAsync(other, action); }
4707	>	public CompletionStage<Void> runAfterBothAsync
4708	>	(CompletionStage<?> other,
4709	>	Runnable action,
4710	>	Executor executor) {
4711	>	return cf.runAfterBothAsync(other, action, executor); }
4712	>	public <U> CompletionStage<U> applyToEither
4713	>	(CompletionStage<? extends T> other,
4714	>	Function<? super T, U> fn) {
4715	>	return cf.applyToEither(other, fn); }
4716	>	public <U> CompletionStage<U> applyToEitherAsync
4717	>	(CompletionStage<? extends T> other,
4718	>	Function<? super T, U> fn) {
4719	>	return cf.applyToEitherAsync(other, fn); }
4720	>	public <U> CompletionStage<U> applyToEitherAsync
4721	>	(CompletionStage<? extends T> other,
4722	>	Function<? super T, U> fn,
4723	>	Executor executor) {
4724	>	return cf.applyToEitherAsync(other, fn, executor); }
4725	>	public CompletionStage<Void> acceptEither
4726	>	(CompletionStage<? extends T> other,
4727	>	Consumer<? super T> action) {
4728	>	return cf.acceptEither(other, action); }
4729	>	public CompletionStage<Void> acceptEitherAsync
4730	>	(CompletionStage<? extends T> other,
4731	>	Consumer<? super T> action) {
4732	>	return cf.acceptEitherAsync(other, action); }
4733	>	public CompletionStage<Void> acceptEitherAsync
4734	>	(CompletionStage<? extends T> other,
4735	>	Consumer<? super T> action,
4736	>	Executor executor) {
4737	>	return cf.acceptEitherAsync(other, action, executor); }
4738	>	public CompletionStage<Void> runAfterEither
4739	>	(CompletionStage<?> other,
4740	>	Runnable action) {
4741	>	return cf.runAfterEither(other, action); }
4742	>	public CompletionStage<Void> runAfterEitherAsync
4743	>	(CompletionStage<?> other,
4744	>	Runnable action) {
4745	>	return cf.runAfterEitherAsync(other, action); }
4746	>	public CompletionStage<Void> runAfterEitherAsync
4747	>	(CompletionStage<?> other,
4748	>	Runnable action,
4749	>	Executor executor) {
4750	>	return cf.runAfterEitherAsync(other, action, executor); }
4751	>	public <U> CompletionStage<U> thenCompose
4752	>	(Function<? super T, ? extends CompletionStage<U>> fn) {
4753	>	return cf.thenCompose(fn); }
4754	>	public <U> CompletionStage<U> thenComposeAsync
4755	>	(Function<? super T, ? extends CompletionStage<U>> fn) {
4756	>	return cf.thenComposeAsync(fn); }
4757	>	public <U> CompletionStage<U> thenComposeAsync
4758	>	(Function<? super T, ? extends CompletionStage<U>> fn,
4759	>	Executor executor) {
4760	>	return cf.thenComposeAsync(fn, executor); }
4761	>	public <U> CompletionStage<U> handle
4762	>	(BiFunction<? super T, Throwable, ? extends U> fn) {
4763	>	return cf.handle(fn); }
4764	>	public <U> CompletionStage<U> handleAsync
4765	>	(BiFunction<? super T, Throwable, ? extends U> fn) {
4766	>	return cf.handleAsync(fn); }
4767	>	public <U> CompletionStage<U> handleAsync
4768	>	(BiFunction<? super T, Throwable, ? extends U> fn,
4769	>	Executor executor) {
4770	>	return cf.handleAsync(fn, executor); }
4771	>	public CompletionStage<T> whenComplete
4772	>	(BiConsumer<? super T, ? super Throwable> action) {
4773	>	return cf.whenComplete(action); }
4774	>	public CompletionStage<T> whenCompleteAsync
4775	>	(BiConsumer<? super T, ? super Throwable> action) {
4776	>	return cf.whenCompleteAsync(action); }
4777	>	public CompletionStage<T> whenCompleteAsync
4778	>	(BiConsumer<? super T, ? super Throwable> action,
4779	>	Executor executor) {
4780	>	return cf.whenCompleteAsync(action, executor); }
4781	>	public CompletionStage<T> exceptionally
4782	>	(Function<Throwable, ? extends T> fn) {
4783	>	return cf.exceptionally(fn); }
4784		}
4785
4786		/**
4787	<	* toCompletableFuture returns this CompletableFuture.
4787	>	* default-implemented exceptionallyAsync action completes with
4788	>	* function value on source exception
4789		*/
4790	<	public void testToCompletableFuture() {
4791	<	CompletableFuture<Integer> f = new CompletableFuture<>();
4792	<	assertSame(f, f.toCompletableFuture());
4793	<	}
4790	>	public void testDefaulExceptionallyAsync_exceptionalCompletion() {
4791	>	for (boolean createIncomplete : new boolean[] { true, false })
4792	>	for (Integer v1 : new Integer[] { 1, null })
4793	>	{
4794	>	final AtomicInteger a = new AtomicInteger(0);
4795	>	final CFException ex = new CFException();
4796	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
4797	>	final DelegatedCompletionStage<Integer> d =
4798	>	new DelegatedCompletionStage<Integer>(f);
4799	>	if (!createIncomplete) f.completeExceptionally(ex);
4800	>	final CompletionStage<Integer> g = d.exceptionallyAsync
4801	>	((Throwable t) -> {
4802	>	threadAssertSame(t, ex);
4803	>	a.getAndIncrement();
4804	>	return v1;
4805	>	});
4806	>	if (createIncomplete) f.completeExceptionally(ex);
4807	>
4808	>	checkCompletedNormally(g.toCompletableFuture(), v1);
4809	>	assertEquals(1, a.get());
4810	>	}}
4811	>
4812	>	/**
4813	>	* Under default implementation, if an "exceptionally action"
4814	>	* throws an exception, it completes exceptionally with that
4815	>	* exception
4816	>	*/
4817	>	public void testDefaulExceptionallyAsync_exceptionalCompletionActionFailed() {
4818	>	for (boolean createIncomplete : new boolean[] { true, false })
4819	>	{
4820	>	final AtomicInteger a = new AtomicInteger(0);
4821	>	final CFException ex1 = new CFException();
4822	>	final CFException ex2 = new CFException();
4823	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
4824	>	final DelegatedCompletionStage<Integer> d =
4825	>	new DelegatedCompletionStage<Integer>(f);
4826	>	if (!createIncomplete) f.completeExceptionally(ex1);
4827	>	final CompletionStage<Integer> g = d.exceptionallyAsync
4828	>	((Throwable t) -> {
4829	>	threadAssertSame(t, ex1);
4830	>	a.getAndIncrement();
4831	>	throw ex2;
4832	>	});
4833	>	if (createIncomplete) f.completeExceptionally(ex1);
4834	>
4835	>	checkCompletedWithWrappedException(g.toCompletableFuture(), ex2);
4836	>	checkCompletedExceptionally(f, ex1);
4837	>	checkCompletedExceptionally(d.toCompletableFuture(), ex1);
4838	>	assertEquals(1, a.get());
4839	>	}}
4840
4841		/**
4842	<	* whenComplete action executes on normal completion, propagating
4843	<	* source result.
4842	>	* default exceptionallyCompose result completes normally after normal
4843	>	* completion of source
4844		*/
4845	<	public void testWhenComplete1() {
4846	<	final AtomicInteger a = new AtomicInteger();
4847	<	CompletableFuture<Integer> f = new CompletableFuture<>();
4848	<	CompletableFuture<Integer> g =
4849	<	f.whenComplete((Integer x, Throwable t) -> a.getAndIncrement());
4850	<	f.complete(three);
4851	<	checkCompletedNormally(f, three);
4852	<	checkCompletedNormally(g, three);
4853	<	assertEquals(a.get(), 1);
4854	<	}
4845	>	public void testDefaultExceptionallyCompose_normalCompletion() {
4846	>	for (boolean createIncomplete : new boolean[] { true, false })
4847	>	for (Integer v1 : new Integer[] { 1, null })
4848	>	{
4849	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
4850	>	final ExceptionalCompletableFutureFunction r =
4851	>	new ExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4852	>	final DelegatedCompletionStage<Integer> d =
4853	>	new DelegatedCompletionStage<Integer>(f);
4854	>	if (!createIncomplete) assertTrue(f.complete(v1));
4855	>	final CompletionStage<Integer> g = d.exceptionallyCompose(r);
4856	>	if (createIncomplete) assertTrue(f.complete(v1));
4857
4858	<	/**
4859	<	* whenComplete action executes on exceptional completion, propagating
4860	<	* source result.
4861	<	*/
3163	<	public void testWhenComplete2() {
3164	<	final AtomicInteger a = new AtomicInteger();
3165	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3166	<	CompletableFuture<Integer> g =
3167	<	f.whenComplete((Integer x, Throwable t) -> a.getAndIncrement());
3168	<	f.completeExceptionally(new CFException());
3169	<	assertTrue(f.isCompletedExceptionally());
3170	<	assertTrue(g.isCompletedExceptionally());
3171	<	assertEquals(a.get(), 1);
3172	<	}
4858	>	checkCompletedNormally(f, v1);
4859	>	checkCompletedNormally(g.toCompletableFuture(), v1);
4860	>	r.assertNotInvoked();
4861	>	}}
4862
4863		/**
4864	<	* If a whenComplete action throws an exception when triggered by
4865	<	* a normal completion, it completes exceptionally
4864	>	* default-implemented exceptionallyCompose result completes
4865	>	* normally after exceptional completion of source
4866		*/
4867	<	public void testWhenComplete3() {
4868	<	CompletableFuture<Integer> f = new CompletableFuture<>();
4869	<	CompletableFuture<Integer> g =
4870	<	f.whenComplete((Integer x, Throwable t) ->
4871	<	{ throw new CFException(); } );
4872	<	f.complete(three);
4873	<	checkCompletedNormally(f, three);
4874	<	assertTrue(g.isCompletedExceptionally());
4875	<	checkCompletedWithWrappedCFException(g);
4876	<	}
4867	>	public void testDefaultExceptionallyCompose_exceptionalCompletion() {
4868	>	for (boolean createIncomplete : new boolean[] { true, false })
4869	>	{
4870	>	final CFException ex = new CFException();
4871	>	final ExceptionalCompletableFutureFunction r =
4872	>	new ExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4873	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
4874	>	final DelegatedCompletionStage<Integer> d =
4875	>	new DelegatedCompletionStage<Integer>(f);
4876	>	if (!createIncomplete) f.completeExceptionally(ex);
4877	>	final CompletionStage<Integer> g = d.exceptionallyCompose(r);
4878	>	if (createIncomplete) f.completeExceptionally(ex);
4879	>
4880	>	checkCompletedExceptionally(f, ex);
4881	>	checkCompletedNormally(g.toCompletableFuture(), r.value);
4882	>	r.assertInvoked();
4883	>	}}
4884
4885		/**
4886	<	* whenCompleteAsync action executes on normal completion, propagating
4887	<	* source result.
4886	>	* default-implemented exceptionallyCompose completes
4887	>	* exceptionally on exception if action does
4888		*/
4889	<	public void testWhenCompleteAsync1() {
4890	<	final AtomicInteger a = new AtomicInteger();
4891	<	CompletableFuture<Integer> f = new CompletableFuture<>();
4892	<	CompletableFuture<Integer> g =
4893	<	f.whenCompleteAsync((Integer x, Throwable t) -> a.getAndIncrement());
4894	<	f.complete(three);
4895	<	checkCompletedNormally(f, three);
4896	<	checkCompletedNormally(g, three);
4897	<	assertEquals(a.get(), 1);
4898	<	}
4889	>	public void testDefaultExceptionallyCompose_actionFailed() {
4890	>	for (boolean createIncomplete : new boolean[] { true, false })
4891	>	for (Integer v1 : new Integer[] { 1, null })
4892	>	{
4893	>	final CFException ex = new CFException();
4894	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
4895	>	final FailingExceptionalCompletableFutureFunction r
4896	>	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4897	>	final DelegatedCompletionStage<Integer> d =
4898	>	new DelegatedCompletionStage<Integer>(f);
4899	>	if (!createIncomplete) f.completeExceptionally(ex);
4900	>	final CompletionStage<Integer> g = d.exceptionallyCompose(r);
4901	>	if (createIncomplete) f.completeExceptionally(ex);
4902	>
4903	>	checkCompletedExceptionally(f, ex);
4904	>	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
4905	>	r.assertInvoked();
4906	>	}}
4907
4908		/**
4909	<	* whenCompleteAsync action executes on exceptional completion, propagating
4910	<	* source result.
4909	>	* default exceptionallyComposeAsync result completes normally after normal
4910	>	* completion of source
4911		*/
4912	<	public void testWhenCompleteAsync2() {
4913	<	final AtomicInteger a = new AtomicInteger();
4914	<	CompletableFuture<Integer> f = new CompletableFuture<>();
4915	<	CompletableFuture<Integer> g =
4916	<	f.whenCompleteAsync((Integer x, Throwable t) -> a.getAndIncrement());
4917	<	f.completeExceptionally(new CFException());
4918	<	checkCompletedWithWrappedCFException(f);
4919	<	checkCompletedWithWrappedCFException(g);
4920	<	}
4912	>	public void testDefaultExceptionallyComposeAsync_normalCompletion() {
4913	>	for (boolean createIncomplete : new boolean[] { true, false })
4914	>	for (Integer v1 : new Integer[] { 1, null })
4915	>	{
4916	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
4917	>	final ExceptionalCompletableFutureFunction r =
4918	>	new ExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
4919	>	final DelegatedCompletionStage<Integer> d =
4920	>	new DelegatedCompletionStage<Integer>(f);
4921	>	if (!createIncomplete) assertTrue(f.complete(v1));
4922	>	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
4923	>	if (createIncomplete) assertTrue(f.complete(v1));
4924
4925	<	/**
4926	<	* If a whenCompleteAsync action throws an exception when
4927	<	* triggered by a normal completion, it completes exceptionally
4928	<	*/
3222	<	public void testWhenCompleteAsync3() {
3223	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3224	<	CompletableFuture<Integer> g =
3225	<	f.whenCompleteAsync((Integer x, Throwable t) ->
3226	<	{ throw new CFException(); } );
3227	<	f.complete(three);
3228	<	checkCompletedNormally(f, three);
3229	<	checkCompletedWithWrappedCFException(g);
3230	<	}
4925	>	checkCompletedNormally(f, v1);
4926	>	checkCompletedNormally(g.toCompletableFuture(), v1);
4927	>	r.assertNotInvoked();
4928	>	}}
4929
4930		/**
4931	<	* whenCompleteAsync action executes on normal completion, propagating
4932	<	* source result.
4931	>	* default-implemented exceptionallyComposeAsync result completes
4932	>	* normally after exceptional completion of source
4933		*/
4934	<	public void testWhenCompleteAsync1e() {
4935	<	final AtomicInteger a = new AtomicInteger();
4936	<	ThreadExecutor exec = new ThreadExecutor();
4937	<	CompletableFuture<Integer> f = new CompletableFuture<>();
4938	<	CompletableFuture<Integer> g =
4939	<	f.whenCompleteAsync((Integer x, Throwable t) -> a.getAndIncrement(),
4940	<	exec);
4941	<	f.complete(three);
4942	<	checkCompletedNormally(f, three);
4943	<	checkCompletedNormally(g, three);
4944	<	assertEquals(a.get(), 1);
4945	<	}
4934	>	public void testDefaultExceptionallyComposeAsync_exceptionalCompletion() {
4935	>	for (boolean createIncomplete : new boolean[] { true, false })
4936	>	{
4937	>	final CFException ex = new CFException();
4938	>	final ExceptionalCompletableFutureFunction r =
4939	>	new ExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
4940	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
4941	>	final DelegatedCompletionStage<Integer> d =
4942	>	new DelegatedCompletionStage<Integer>(f);
4943	>	if (!createIncomplete) f.completeExceptionally(ex);
4944	>	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
4945	>	if (createIncomplete) f.completeExceptionally(ex);
4946	>
4947	>	checkCompletedExceptionally(f, ex);
4948	>	checkCompletedNormally(g.toCompletableFuture(), r.value);
4949	>	r.assertInvoked();
4950	>	}}
4951
4952		/**
4953	<	* whenCompleteAsync action executes on exceptional completion, propagating
4954	<	* source result.
4953	>	* default-implemented exceptionallyComposeAsync completes
4954	>	* exceptionally on exception if action does
4955		*/
4956	<	public void testWhenCompleteAsync2e() {
4957	<	final AtomicInteger a = new AtomicInteger();
4958	<	ThreadExecutor exec = new ThreadExecutor();
4959	<	CompletableFuture<Integer> f = new CompletableFuture<>();
4960	<	CompletableFuture<Integer> g =
4961	<	f.whenCompleteAsync((Integer x, Throwable t) -> a.getAndIncrement(),
4962	<	exec);
4963	<	f.completeExceptionally(new CFException());
4964	<	checkCompletedWithWrappedCFException(f);
4965	<	checkCompletedWithWrappedCFException(g);
4966	<	}
4956	>	public void testDefaultExceptionallyComposeAsync_actionFailed() {
4957	>	for (boolean createIncomplete : new boolean[] { true, false })
4958	>	for (Integer v1 : new Integer[] { 1, null })
4959	>	{
4960	>	final CFException ex = new CFException();
4961	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
4962	>	final FailingExceptionalCompletableFutureFunction r
4963	>	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
4964	>	final DelegatedCompletionStage<Integer> d =
4965	>	new DelegatedCompletionStage<Integer>(f);
4966	>	if (!createIncomplete) f.completeExceptionally(ex);
4967	>	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
4968	>	if (createIncomplete) f.completeExceptionally(ex);
4969	>
4970	>	checkCompletedExceptionally(f, ex);
4971	>	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
4972	>	r.assertInvoked();
4973	>	}}
4974
3265	–	/**
3266	–	* If a whenCompleteAsync action throws an exception when triggered
3267	–	* by a normal completion, it completes exceptionally
3268	–	*/
3269	–	public void testWhenCompleteAsync3e() {
3270	–	ThreadExecutor exec = new ThreadExecutor();
3271	–	CompletableFuture<Integer> f = new CompletableFuture<>();
3272	–	CompletableFuture<Integer> g =
3273	–	f.whenCompleteAsync((Integer x, Throwable t) ->
3274	–	{ throw new CFException(); },
3275	–	exec);
3276	–	f.complete(three);
3277	–	checkCompletedNormally(f, three);
3278	–	checkCompletedWithWrappedCFException(g);
3279	–	}
4975
4976		/**
4977	<	* handleAsync action completes normally with function value on
4978	<	* either normal or exceptional completion of source
4977	>	* default exceptionallyComposeAsync result completes normally after normal
4978	>	* completion of source
4979		*/
4980	<	public void testHandleAsync() {
4981	<	CompletableFuture<Integer> f, g;
4982	<	IntegerHandler r;
4983	<
4984	<	f = new CompletableFuture<>();
4985	<	g = f.handleAsync(r = new IntegerHandler());
4986	<	assertFalse(r.ran);
4987	<	f.completeExceptionally(new CFException());
4988	<	checkCompletedWithWrappedCFException(f);
4989	<	checkCompletedNormally(g, three);
4990	<	assertTrue(r.ran);
4991	<
3297	<	f = new CompletableFuture<>();
3298	<	g = f.handleAsync(r = new IntegerHandler());
3299	<	assertFalse(r.ran);
3300	<	f.completeExceptionally(new CFException());
3301	<	checkCompletedWithWrappedCFException(f);
3302	<	checkCompletedNormally(g, three);
3303	<	assertTrue(r.ran);
3304	<
3305	<	f = new CompletableFuture<>();
3306	<	g = f.handleAsync(r = new IntegerHandler());
3307	<	assertFalse(r.ran);
3308	<	f.complete(one);
3309	<	checkCompletedNormally(f, one);
3310	<	checkCompletedNormally(g, two);
3311	<	assertTrue(r.ran);
4980	>	public void testDefaultExceptionallyComposeAsyncExecutor_normalCompletion() {
4981	>	for (boolean createIncomplete : new boolean[] { true, false })
4982	>	for (Integer v1 : new Integer[] { 1, null })
4983	>	{
4984	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
4985	>	final ExceptionalCompletableFutureFunction r =
4986	>	new ExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
4987	>	final DelegatedCompletionStage<Integer> d =
4988	>	new DelegatedCompletionStage<Integer>(f);
4989	>	if (!createIncomplete) assertTrue(f.complete(v1));
4990	>	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r,  new ThreadExecutor());
4991	>	if (createIncomplete) assertTrue(f.complete(v1));
4992
4993	<	f = new CompletableFuture<>();
4994	<	g = f.handleAsync(r = new IntegerHandler());
4995	<	assertFalse(r.ran);
4996	<	f.complete(one);
3317	<	checkCompletedNormally(f, one);
3318	<	checkCompletedNormally(g, two);
3319	<	assertTrue(r.ran);
3320	<	}
4993	>	checkCompletedNormally(f, v1);
4994	>	checkCompletedNormally(g.toCompletableFuture(), v1);
4995	>	r.assertNotInvoked();
4996	>	}}
4997
4998		/**
4999	<	* handleAsync action with Executor completes normally with
5000	<	* function value on either normal or exceptional completion of
3325	<	* source
4999	>	* default-implemented exceptionallyComposeAsync result completes
5000	>	* normally after exceptional completion of source
5001		*/
5002	<	public void testHandleAsync2() {
5003	<	CompletableFuture<Integer> f, g;
5004	<	ThreadExecutor exec = new ThreadExecutor();
5005	<	IntegerHandler r;
5006	<
5007	<	f = new CompletableFuture<>();
5008	<	g = f.handleAsync(r = new IntegerHandler(), exec);
5009	<	assertFalse(r.ran);
5010	<	f.completeExceptionally(new CFException());
5011	<	checkCompletedWithWrappedCFException(f);
5012	<	checkCompletedNormally(g, three);
5013	<	assertTrue(r.ran);
5014	<
5015	<	f = new CompletableFuture<>();
5016	<	g = f.handleAsync(r = new IntegerHandler(), exec);
5017	<	assertFalse(r.ran);
5018	<	f.completeExceptionally(new CFException());
3344	<	checkCompletedWithWrappedCFException(f);
3345	<	checkCompletedNormally(g, three);
3346	<	assertTrue(r.ran);
3347	<
3348	<	f = new CompletableFuture<>();
3349	<	g = f.handleAsync(r = new IntegerHandler(), exec);
3350	<	assertFalse(r.ran);
3351	<	f.complete(one);
3352	<	checkCompletedNormally(f, one);
3353	<	checkCompletedNormally(g, two);
3354	<	assertTrue(r.ran);
5002	>	public void testDefaultExceptionallyComposeAsyncExecutor_exceptionalCompletion() {
5003	>	for (boolean createIncomplete : new boolean[] { true, false })
5004	>	{
5005	>	final CFException ex = new CFException();
5006	>	final ExceptionalCompletableFutureFunction r =
5007	>	new ExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
5008	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
5009	>	final DelegatedCompletionStage<Integer> d =
5010	>	new DelegatedCompletionStage<Integer>(f);
5011	>	if (!createIncomplete) f.completeExceptionally(ex);
5012	>	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r,  new ThreadExecutor());
5013	>	if (createIncomplete) f.completeExceptionally(ex);
5014	>
5015	>	checkCompletedExceptionally(f, ex);
5016	>	checkCompletedNormally(g.toCompletableFuture(), r.value);
5017	>	r.assertInvoked();
5018	>	}}
5019
5020	<	f = new CompletableFuture<>();
5021	<	g = f.handleAsync(r = new IntegerHandler(), exec);
5022	<	assertFalse(r.ran);
5023	<	f.complete(one);
5024	<	checkCompletedNormally(f, one);
5025	<	checkCompletedNormally(g, two);
5026	<	assertTrue(r.ran);
5027	<	}
5020	>	/**
5021	>	* default-implemented exceptionallyComposeAsync completes
5022	>	* exceptionally on exception if action does
5023	>	*/
5024	>	public void testDefaultExceptionallyComposeAsyncExecutor_actionFailed() {
5025	>	for (boolean createIncomplete : new boolean[] { true, false })
5026	>	for (Integer v1 : new Integer[] { 1, null })
5027	>	{
5028	>	final CFException ex = new CFException();
5029	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
5030	>	final FailingExceptionalCompletableFutureFunction r
5031	>	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
5032	>	final DelegatedCompletionStage<Integer> d =
5033	>	new DelegatedCompletionStage<Integer>(f);
5034	>	if (!createIncomplete) f.completeExceptionally(ex);
5035	>	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r,  new ThreadExecutor());
5036	>	if (createIncomplete) f.completeExceptionally(ex);
5037	>
5038	>	checkCompletedExceptionally(f, ex);
5039	>	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
5040	>	r.assertInvoked();
5041	>	}}
5042
5043		}

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