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Comparing jsr166/src/test/tck/CompletableFutureTest.java (file contents):
Revision 1.6 by jsr166, Fri Mar 22 16:10:19 2013 UTC vs.
Revision 1.209 by jsr166, Sun Sep 23 17:02:24 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	<	void checkCompletedNormally(CompletableFuture<?> f, Object value) {
78	<	try {
79	<	assertEquals(value, f.join());
80	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
81	<	try {
82	<	assertEquals(value, f.getNow(null));
83	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
63	<	try {
64	<	assertEquals(value, f.get());
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(0L, SECONDS));
85	>	result = f.get();
86		} catch (Throwable fail) { threadUnexpectedException(fail); }
87	+	assertEquals(expectedValue, result);
88	+
89		assertTrue(f.isDone());
90		assertFalse(f.isCancelled());
91	<	assertTrue(f.toString().contains("[Completed normally]"));
91	>	assertFalse(f.isCompletedExceptionally());
92	>	assertTrue(f.toString().matches(".*\\[.*Completed normally.*\\]"));
93		}
94
95	<	void checkCompletedWithWrappedCFException(CompletableFuture<?> f) {
96	<	try {
97	<	f.join();
98	<	shouldThrow();
99	<	} catch (Throwable ex) {
100	<	assertTrue(ex instanceof CompletionException &&
101	<	((CompletionException)ex).getCause() instanceof CFException);
102	<	}
103	<	try {
104	<	f.getNow(null);
105	<	shouldThrow();
106	<	} catch (Throwable ex) {
107	<	assertTrue(ex instanceof CompletionException &&
108	<	((CompletionException)ex).getCause() instanceof CFException);
109	<	}
110	<	try {
111	<	f.get();
91	<	shouldThrow();
92	<	} catch (Throwable ex) {
93	<	assertTrue(ex instanceof ExecutionException &&
94	<	((ExecutionException)ex).getCause() instanceof CFException);
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 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(0L, SECONDS);
117	>	f.get(LONG_DELAY_MS, MILLISECONDS);
118		shouldThrow();
119	<	} catch (Throwable ex) {
120	<	assertTrue(ex instanceof ExecutionException &&
121	<	((ExecutionException)ex).getCause() instanceof CFException);
122	<	}
103	<	assertTrue(f.isDone());
104	<	assertFalse(f.isCancelled());
105	<	}
119	>	} catch (ExecutionException success) {
120	>	assertSame(cause, success.getCause());
121	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
122	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
123
107	–	void checkCancelled(CompletableFuture<?> f) {
124		try {
125		f.join();
126		shouldThrow();
127	<	} catch (Throwable ex) {
128	<	assertTrue(ex instanceof CancellationException);
129	<	}
127	>	} catch (CompletionException success) {
128	>	assertSame(cause, success.getCause());
129	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
130	>
131		try {
132		f.getNow(null);
133		shouldThrow();
134	<	} catch (Throwable ex) {
135	<	assertTrue(ex instanceof CancellationException);
136	<	}
134	>	} catch (CompletionException success) {
135	>	assertSame(cause, success.getCause());
136	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
137	>
138		try {
139		f.get();
140		shouldThrow();
141	<	} catch (Throwable ex) {
142	<	assertTrue(ex instanceof CancellationException);
143	<	}
144	<	try {
145	<	f.get(0L, SECONDS);
128	<	shouldThrow();
129	<	} catch (Throwable ex) {
130	<	assertTrue(ex instanceof CancellationException);
131	<	}
141	>	} catch (ExecutionException success) {
142	>	assertSame(cause, success.getCause());
143	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
144	>
145	>	assertFalse(f.isCancelled());
146		assertTrue(f.isDone());
147	<	assertTrue(f.isCancelled());
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();
187	<	} catch (Throwable ex) {
141	<	assertTrue(ex instanceof CompletionException &&
142	<	((CompletionException)ex).getCause() instanceof CancellationException);
143	<	}
187	>	} catch (CancellationException success) {}
188		try {
189		f.getNow(null);
190		shouldThrow();
191	<	} catch (Throwable ex) {
148	<	assertTrue(ex instanceof CompletionException &&
149	<	((CompletionException)ex).getCause() instanceof CancellationException);
150	<	}
191	>	} catch (CancellationException success) {}
192		try {
193		f.get();
194		shouldThrow();
195	<	} catch (Throwable ex) {
196	<	assertTrue(ex instanceof ExecutionException &&
197	<	((ExecutionException)ex).getCause() instanceof CancellationException);
198	<	}
199	<	try {
159	<	f.get(0L, SECONDS);
160	<	shouldThrow();
161	<	} catch (Throwable ex) {
162	<	assertTrue(ex instanceof ExecutionException &&
163	<	((ExecutionException)ex).getCause() instanceof CancellationException);
164	<	}
195	>	} catch (CancellationException success) {
196	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
197	>
198	>	assertTrue(exceptionalCompletion(f) instanceof CancellationException);
199	>
200		assertTrue(f.isDone());
201	<	assertFalse(f.isCancelled());
201	>	assertTrue(f.isCompletedExceptionally());
202	>	assertTrue(f.isCancelled());
203	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
204		}
205
206		/**
#	Line 171 | Line 208 | public class CompletableFutureTest exten
208		* by methods isDone, isCancelled, and getNow
209		*/
210		public void testConstructor() {
211	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
211	>	CompletableFuture<Integer> f = new CompletableFuture<>();
212		checkIncomplete(f);
213		}
214
#	Line 180 | Line 217 | public class CompletableFutureTest exten
217		* isCancelled, join, get, and getNow
218		*/
219		public void testComplete() {
220	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
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
231		* methods isDone, isCancelled, join, get, and getNow
232		*/
233		public void testCompleteExceptionally() {
234	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
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 202 | Line 243 | public class CompletableFutureTest exten
243		* methods isDone, isCancelled, join, get, and getNow
244		*/
245		public void testCancel() {
246	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
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
258		*/
259		public void testObtrudeValue() {
260	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
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);
266		f.obtrudeValue(two);
267		checkCompletedNormally(f, two);
268	<	f = new CompletableFuture<Integer>();
268	>	f = new CompletableFuture<>();
269		f.obtrudeValue(three);
270		checkCompletedNormally(f, three);
271	<	f = new CompletableFuture<Integer>();
271	>	f.obtrudeValue(null);
272	>	checkCompletedNormally(f, null);
273	>	f = new CompletableFuture<>();
274		f.completeExceptionally(new CFException());
275		f.obtrudeValue(four);
276		checkCompletedNormally(f, four);
#	Line 233 | Line 280 | public class CompletableFutureTest exten
280		* obtrudeException forces completion with given exception
281		*/
282		public void testObtrudeException() {
283	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
284	<	checkIncomplete(f);
285	<	f.complete(one);
286	<	checkCompletedNormally(f, one);
287	<	f.obtrudeException(new CFException());
288	<	checkCompletedWithWrappedCFException(f);
289	<	f = new CompletableFuture<Integer>();
290	<	f.obtrudeException(new CFException());
291	<	checkCompletedWithWrappedCFException(f);
292	<	f = new CompletableFuture<Integer>();
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	>	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	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
318	<	assertEquals(f.getNumberOfDependents(), 0);
319	<	CompletableFuture g = f.thenRun(new Noop());
320	<	assertEquals(f.getNumberOfDependents(), 1);
321	<	assertEquals(g.getNumberOfDependents(), 0);
322	<	CompletableFuture h = f.thenRun(new Noop());
323	<	assertEquals(f.getNumberOfDependents(), 2);
324	<	f.complete(1);
317	>	for (ExecutionMode m : ExecutionMode.values())
318	>	for (Integer v1 : new Integer[] { 1, null })
319	>	{
320	>	CompletableFuture<Integer> f = new CompletableFuture<>();
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	<	}
333	<
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;
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	>	/**
377	>	* completedFuture returns a completed CompletableFuture with given value
378	>	*/
379	>	public void testCompletedFuture() {
380	>	CompletableFuture<String> f = CompletableFuture.completedFuture("test");
381	>	checkCompletedNormally(f, "test");
382	>	}
383	>
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	>	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	>
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	<	f = new CompletableFuture<String>();
420	<	assertTrue(f.toString().contains("[Not completed]"));
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	<	f.complete("foo");
425	<	assertTrue(f.toString().contains("[Completed normally]"));
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	<	f = new CompletableFuture<String>();
445	<	f.completeExceptionally(new IndexOutOfBoundsException());
446	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
447	<	}
448	<
449	<	static final Supplier<Integer> supplyOne =
289	<	() -> Integer.valueOf(1);
290	<	static final Function<Integer, Integer> inc =
291	<	(Integer x) -> Integer.valueOf(x.intValue() + 1);
292	<	static final BiFunction<Integer, Integer, Integer> add =
293	<	(Integer x, Integer y) -> Integer.valueOf(x.intValue() + y.intValue());
294	<	static final class IncAction implements Consumer<Integer> {
295	<	int value;
296	<	public void accept(Integer x) { value = x.intValue() + 1; }
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	<	static final class AddAction implements BiConsumer<Integer, Integer> {
452	<	int value;
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 implements Function<Integer, CompletableFuture<Integer>> {
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	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
553	<	f.complete(Integer.valueOf(x.intValue() + 1));
554	<	return f;
552	>	invoked();
553	>	value = x;
554	>	return CompletableFuture.completedFuture(inc(x));
555	>	}
556	>	}
557	>
558	>	static class FailingExceptionalCompletableFutureFunction extends CheckedAction
559	>	implements Function<Throwable, CompletableFuture<Integer>>
560	>	{
561	>	final CFException ex;
562	>	FailingExceptionalCompletableFutureFunction(ExecutionMode m) { super(m); ex = new CFException(); }
563	>	public CompletableFuture<Integer> apply(Throwable x) {
564	>	invoked();
565	>	throw ex;
566	>	}
567	>	}
568	>
569	>	static class ExceptionalCompletableFutureFunction extends CheckedAction
570	>	implements Function<Throwable, CompletionStage<Integer>> {
571	>	final Integer value = 3;
572	>	ExceptionalCompletableFutureFunction(ExecutionMode m) { super(m); }
573	>	public CompletionStage<Integer> apply(Throwable x) {
574	>	invoked();
575	>	return CompletableFuture.completedFuture(value);
576		}
577		}
578
579	<	static final class FailingCompletableFutureFunction implements Function<Integer, CompletableFuture<Integer>> {
580	<	boolean ran;
579	>	static class FailingCompletableFutureFunction extends CheckedIntegerAction
580	>	implements Function<Integer, CompletableFuture<Integer>>
581	>	{
582	>	final CFException ex;
583	>	FailingCompletableFutureFunction(ExecutionMode m) { super(m); ex = new CFException(); }
584		public CompletableFuture<Integer> apply(Integer x) {
585	<	ran = true; throw new CFException();
585	>	invoked();
586	>	value = x;
587	>	throw ex;
588		}
589		}
590
591	<	// Used for explicit executor tests
592	<	static final class ThreadExecutor implements Executor {
591	>	static class CountingRejectingExecutor implements Executor {
592	>	final RejectedExecutionException ex = new RejectedExecutionException();
593	>	final AtomicInteger count = new AtomicInteger(0);
594		public void execute(Runnable r) {
595	<	new Thread(r).start();
595	>	count.getAndIncrement();
596	>	throw ex;
597		}
598		}
599
600	<	static final class ExceptionToInteger implements Function<Throwable, Integer> {
601	<	public Integer apply(Throwable x) { return Integer.valueOf(3); }
602	<	}
600	>	// Used for explicit executor tests
601	>	static final class ThreadExecutor implements Executor {
602	>	final AtomicInteger count = new AtomicInteger(0);
603	>	static final ThreadGroup tg = new ThreadGroup("ThreadExecutor");
604	>	static boolean startedCurrentThread() {
605	>	return Thread.currentThread().getThreadGroup() == tg;
606	>	}
607
608	<	static final class IntegerHandler implements BiFunction<Integer, Throwable, Integer> {
609	<	public Integer apply(Integer x, Throwable t) {
610	<	return (t == null) ? two : three;
608	>	public void execute(Runnable r) {
609	>	count.getAndIncrement();
610	>	new Thread(tg, r).start();
611		}
612		}
613
614	+	static final boolean defaultExecutorIsCommonPool
615	+	= ForkJoinPool.getCommonPoolParallelism() > 1;
616	+
617	+	/**
618	+	* Permits the testing of parallel code for the 3 different
619	+	* execution modes without copy/pasting all the test methods.
620	+	*/
621	+	enum ExecutionMode {
622	+	SYNC {
623	+	public void checkExecutionMode() {
624	+	assertFalse(ThreadExecutor.startedCurrentThread());
625	+	assertNull(ForkJoinTask.getPool());
626	+	}
627	+	public CompletableFuture<Void> runAsync(Runnable a) {
628	+	throw new UnsupportedOperationException();
629	+	}
630	+	public <U> CompletableFuture<U> supplyAsync(Supplier<U> a) {
631	+	throw new UnsupportedOperationException();
632	+	}
633	+	public <T> CompletableFuture<Void> thenRun
634	+	(CompletableFuture<T> f, Runnable a) {
635	+	return f.thenRun(a);
636	+	}
637	+	public <T> CompletableFuture<Void> thenAccept
638	+	(CompletableFuture<T> f, Consumer<? super T> a) {
639	+	return f.thenAccept(a);
640	+	}
641	+	public <T,U> CompletableFuture<U> thenApply
642	+	(CompletableFuture<T> f, Function<? super T,U> a) {
643	+	return f.thenApply(a);
644	+	}
645	+	public <T,U> CompletableFuture<U> thenCompose
646	+	(CompletableFuture<T> f,
647	+	Function<? super T,? extends CompletionStage<U>> a) {
648	+	return f.thenCompose(a);
649	+	}
650	+	public <T,U> CompletableFuture<U> handle
651	+	(CompletableFuture<T> f,
652	+	BiFunction<? super T,Throwable,? extends U> a) {
653	+	return f.handle(a);
654	+	}
655	+	public <T> CompletableFuture<T> whenComplete
656	+	(CompletableFuture<T> f,
657	+	BiConsumer<? super T,? super Throwable> a) {
658	+	return f.whenComplete(a);
659	+	}
660	+	public <T,U> CompletableFuture<Void> runAfterBoth
661	+	(CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) {
662	+	return f.runAfterBoth(g, a);
663	+	}
664	+	public <T,U> CompletableFuture<Void> thenAcceptBoth
665	+	(CompletableFuture<T> f,
666	+	CompletionStage<? extends U> g,
667	+	BiConsumer<? super T,? super U> a) {
668	+	return f.thenAcceptBoth(g, a);
669	+	}
670	+	public <T,U,V> CompletableFuture<V> thenCombine
671	+	(CompletableFuture<T> f,
672	+	CompletionStage<? extends U> g,
673	+	BiFunction<? super T,? super U,? extends V> a) {
674	+	return f.thenCombine(g, a);
675	+	}
676	+	public <T> CompletableFuture<Void> runAfterEither
677	+	(CompletableFuture<T> f,
678	+	CompletionStage<?> g,
679	+	java.lang.Runnable a) {
680	+	return f.runAfterEither(g, a);
681	+	}
682	+	public <T> CompletableFuture<Void> acceptEither
683	+	(CompletableFuture<T> f,
684	+	CompletionStage<? extends T> g,
685	+	Consumer<? super T> a) {
686	+	return f.acceptEither(g, a);
687	+	}
688	+	public <T,U> CompletableFuture<U> applyToEither
689	+	(CompletableFuture<T> f,
690	+	CompletionStage<? extends T> g,
691	+	Function<? super T,U> a) {
692	+	return f.applyToEither(g, a);
693	+	}
694	+	public <T> CompletableFuture<T> exceptionally
695	+	(CompletableFuture<T> f,
696	+	Function<Throwable, ? extends T> fn) {
697	+	return f.exceptionally(fn);
698	+	}
699	+	public <T> CompletableFuture<T> exceptionallyCompose
700	+	(CompletableFuture<T> f, Function<Throwable, ? extends CompletionStage<T>> fn) {
701	+	return f.exceptionallyCompose(fn);
702	+	}
703	+	},
704	+	ASYNC {
705	+	public void checkExecutionMode() {
706	+	assertEquals(defaultExecutorIsCommonPool,
707	+	(ForkJoinPool.commonPool() == ForkJoinTask.getPool()));
708	+	}
709	+	public CompletableFuture<Void> runAsync(Runnable a) {
710	+	return CompletableFuture.runAsync(a);
711	+	}
712	+	public <U> CompletableFuture<U> supplyAsync(Supplier<U> a) {
713	+	return CompletableFuture.supplyAsync(a);
714	+	}
715	+	public <T> CompletableFuture<Void> thenRun
716	+	(CompletableFuture<T> f, Runnable a) {
717	+	return f.thenRunAsync(a);
718	+	}
719	+	public <T> CompletableFuture<Void> thenAccept
720	+	(CompletableFuture<T> f, Consumer<? super T> a) {
721	+	return f.thenAcceptAsync(a);
722	+	}
723	+	public <T,U> CompletableFuture<U> thenApply
724	+	(CompletableFuture<T> f, Function<? super T,U> a) {
725	+	return f.thenApplyAsync(a);
726	+	}
727	+	public <T,U> CompletableFuture<U> thenCompose
728	+	(CompletableFuture<T> f,
729	+	Function<? super T,? extends CompletionStage<U>> a) {
730	+	return f.thenComposeAsync(a);
731	+	}
732	+	public <T,U> CompletableFuture<U> handle
733	+	(CompletableFuture<T> f,
734	+	BiFunction<? super T,Throwable,? extends U> a) {
735	+	return f.handleAsync(a);
736	+	}
737	+	public <T> CompletableFuture<T> whenComplete
738	+	(CompletableFuture<T> f,
739	+	BiConsumer<? super T,? super Throwable> a) {
740	+	return f.whenCompleteAsync(a);
741	+	}
742	+	public <T,U> CompletableFuture<Void> runAfterBoth
743	+	(CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) {
744	+	return f.runAfterBothAsync(g, a);
745	+	}
746	+	public <T,U> CompletableFuture<Void> thenAcceptBoth
747	+	(CompletableFuture<T> f,
748	+	CompletionStage<? extends U> g,
749	+	BiConsumer<? super T,? super U> a) {
750	+	return f.thenAcceptBothAsync(g, a);
751	+	}
752	+	public <T,U,V> CompletableFuture<V> thenCombine
753	+	(CompletableFuture<T> f,
754	+	CompletionStage<? extends U> g,
755	+	BiFunction<? super T,? super U,? extends V> a) {
756	+	return f.thenCombineAsync(g, a);
757	+	}
758	+	public <T> CompletableFuture<Void> runAfterEither
759	+	(CompletableFuture<T> f,
760	+	CompletionStage<?> g,
761	+	java.lang.Runnable a) {
762	+	return f.runAfterEitherAsync(g, a);
763	+	}
764	+	public <T> CompletableFuture<Void> acceptEither
765	+	(CompletableFuture<T> f,
766	+	CompletionStage<? extends T> g,
767	+	Consumer<? super T> a) {
768	+	return f.acceptEitherAsync(g, a);
769	+	}
770	+	public <T,U> CompletableFuture<U> applyToEither
771	+	(CompletableFuture<T> f,
772	+	CompletionStage<? extends T> g,
773	+	Function<? super T,U> a) {
774	+	return f.applyToEitherAsync(g, a);
775	+	}
776	+	public <T> CompletableFuture<T> exceptionally
777	+	(CompletableFuture<T> f,
778	+	Function<Throwable, ? extends T> fn) {
779	+	return f.exceptionallyAsync(fn);
780	+	}
781	+
782	+	public <T> CompletableFuture<T> exceptionallyCompose
783	+	(CompletableFuture<T> f, Function<Throwable, ? extends CompletionStage<T>> fn) {
784	+	return f.exceptionallyComposeAsync(fn);
785	+	}
786	+
787	+	},
788	+
789	+	EXECUTOR {
790	+	public void checkExecutionMode() {
791	+	assertTrue(ThreadExecutor.startedCurrentThread());
792	+	}
793	+	public CompletableFuture<Void> runAsync(Runnable a) {
794	+	return CompletableFuture.runAsync(a, new ThreadExecutor());
795	+	}
796	+	public <U> CompletableFuture<U> supplyAsync(Supplier<U> a) {
797	+	return CompletableFuture.supplyAsync(a, new ThreadExecutor());
798	+	}
799	+	public <T> CompletableFuture<Void> thenRun
800	+	(CompletableFuture<T> f, Runnable a) {
801	+	return f.thenRunAsync(a, new ThreadExecutor());
802	+	}
803	+	public <T> CompletableFuture<Void> thenAccept
804	+	(CompletableFuture<T> f, Consumer<? super T> a) {
805	+	return f.thenAcceptAsync(a, new ThreadExecutor());
806	+	}
807	+	public <T,U> CompletableFuture<U> thenApply
808	+	(CompletableFuture<T> f, Function<? super T,U> a) {
809	+	return f.thenApplyAsync(a, new ThreadExecutor());
810	+	}
811	+	public <T,U> CompletableFuture<U> thenCompose
812	+	(CompletableFuture<T> f,
813	+	Function<? super T,? extends CompletionStage<U>> a) {
814	+	return f.thenComposeAsync(a, new ThreadExecutor());
815	+	}
816	+	public <T,U> CompletableFuture<U> handle
817	+	(CompletableFuture<T> f,
818	+	BiFunction<? super T,Throwable,? extends U> a) {
819	+	return f.handleAsync(a, new ThreadExecutor());
820	+	}
821	+	public <T> CompletableFuture<T> whenComplete
822	+	(CompletableFuture<T> f,
823	+	BiConsumer<? super T,? super Throwable> a) {
824	+	return f.whenCompleteAsync(a, new ThreadExecutor());
825	+	}
826	+	public <T,U> CompletableFuture<Void> runAfterBoth
827	+	(CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) {
828	+	return f.runAfterBothAsync(g, a, new ThreadExecutor());
829	+	}
830	+	public <T,U> CompletableFuture<Void> thenAcceptBoth
831	+	(CompletableFuture<T> f,
832	+	CompletionStage<? extends U> g,
833	+	BiConsumer<? super T,? super U> a) {
834	+	return f.thenAcceptBothAsync(g, a, new ThreadExecutor());
835	+	}
836	+	public <T,U,V> CompletableFuture<V> thenCombine
837	+	(CompletableFuture<T> f,
838	+	CompletionStage<? extends U> g,
839	+	BiFunction<? super T,? super U,? extends V> a) {
840	+	return f.thenCombineAsync(g, a, new ThreadExecutor());
841	+	}
842	+	public <T> CompletableFuture<Void> runAfterEither
843	+	(CompletableFuture<T> f,
844	+	CompletionStage<?> g,
845	+	java.lang.Runnable a) {
846	+	return f.runAfterEitherAsync(g, a, new ThreadExecutor());
847	+	}
848	+	public <T> CompletableFuture<Void> acceptEither
849	+	(CompletableFuture<T> f,
850	+	CompletionStage<? extends T> g,
851	+	Consumer<? super T> a) {
852	+	return f.acceptEitherAsync(g, a, new ThreadExecutor());
853	+	}
854	+	public <T,U> CompletableFuture<U> applyToEither
855	+	(CompletableFuture<T> f,
856	+	CompletionStage<? extends T> g,
857	+	Function<? super T,U> a) {
858	+	return f.applyToEitherAsync(g, a, new ThreadExecutor());
859	+	}
860	+	public <T> CompletableFuture<T> exceptionally
861	+	(CompletableFuture<T> f,
862	+	Function<Throwable, ? extends T> fn) {
863	+	return f.exceptionallyAsync(fn, new ThreadExecutor());
864	+	}
865	+	public <T> CompletableFuture<T> exceptionallyCompose
866	+	(CompletableFuture<T> f, Function<Throwable, ? extends CompletionStage<T>> fn) {
867	+	return f.exceptionallyComposeAsync(fn, new ThreadExecutor());
868	+	}
869	+
870	+	};
871	+
872	+	public abstract void checkExecutionMode();
873	+	public abstract CompletableFuture<Void> runAsync(Runnable a);
874	+	public abstract <U> CompletableFuture<U> supplyAsync(Supplier<U> a);
875	+	public abstract <T> CompletableFuture<Void> thenRun
876	+	(CompletableFuture<T> f, Runnable a);
877	+	public abstract <T> CompletableFuture<Void> thenAccept
878	+	(CompletableFuture<T> f, Consumer<? super T> a);
879	+	public abstract <T,U> CompletableFuture<U> thenApply
880	+	(CompletableFuture<T> f, Function<? super T,U> a);
881	+	public abstract <T,U> CompletableFuture<U> thenCompose
882	+	(CompletableFuture<T> f,
883	+	Function<? super T,? extends CompletionStage<U>> a);
884	+	public abstract <T,U> CompletableFuture<U> handle
885	+	(CompletableFuture<T> f,
886	+	BiFunction<? super T,Throwable,? extends U> a);
887	+	public abstract <T> CompletableFuture<T> whenComplete
888	+	(CompletableFuture<T> f,
889	+	BiConsumer<? super T,? super Throwable> a);
890	+	public abstract <T,U> CompletableFuture<Void> runAfterBoth
891	+	(CompletableFuture<T> f, CompletableFuture<U> g, Runnable a);
892	+	public abstract <T,U> CompletableFuture<Void> thenAcceptBoth
893	+	(CompletableFuture<T> f,
894	+	CompletionStage<? extends U> g,
895	+	BiConsumer<? super T,? super U> a);
896	+	public abstract <T,U,V> CompletableFuture<V> thenCombine
897	+	(CompletableFuture<T> f,
898	+	CompletionStage<? extends U> g,
899	+	BiFunction<? super T,? super U,? extends V> a);
900	+	public abstract <T> CompletableFuture<Void> runAfterEither
901	+	(CompletableFuture<T> f,
902	+	CompletionStage<?> g,
903	+	java.lang.Runnable a);
904	+	public abstract <T> CompletableFuture<Void> acceptEither
905	+	(CompletableFuture<T> f,
906	+	CompletionStage<? extends T> g,
907	+	Consumer<? super T> a);
908	+	public abstract <T,U> CompletableFuture<U> applyToEither
909	+	(CompletableFuture<T> f,
910	+	CompletionStage<? extends T> g,
911	+	Function<? super T,U> a);
912	+	public abstract <T> CompletableFuture<T> exceptionally
913	+	(CompletableFuture<T> f,
914	+	Function<Throwable, ? extends T> fn);
915	+	public abstract <T> CompletableFuture<T> exceptionallyCompose
916	+	(CompletableFuture<T> f,
917	+	Function<Throwable, ? extends CompletionStage<T>> fn);
918	+	}
919	+
920	+	/**
921	+	* exceptionally action is not invoked when source completes
922	+	* normally, and source result is propagated
923	+	*/
924	+	public void testExceptionally_normalCompletion() {
925	+	for (ExecutionMode m : ExecutionMode.values())
926	+	for (boolean createIncomplete : new boolean[] { true, false })
927	+	for (Integer v1 : new Integer[] { 1, null })
928	+	{
929	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
930	+	if (!createIncomplete) assertTrue(f.complete(v1));
931	+	final CompletableFuture<Integer> g = m.exceptionally
932	+	(f, (Throwable t) -> {
933	+	threadFail("should not be called");
934	+	return null;            // unreached
935	+	});
936	+	if (createIncomplete) assertTrue(f.complete(v1));
937	+
938	+	checkCompletedNormally(g, v1);
939	+	checkCompletedNormally(f, v1);
940	+	}}
941
942		/**
943		* exceptionally action completes with function value on source
944	<	* exception;  otherwise with source value
944	>	* exception
945		*/
946	<	public void testExceptionally() {
947	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
948	<	ExceptionToInteger r = new ExceptionToInteger();
949	<	CompletableFuture<Integer> g = f.exceptionally(r);
950	<	f.completeExceptionally(new CFException());
951	<	checkCompletedNormally(g, three);
946	>	public void testExceptionally_exceptionalCompletion() {
947	>	for (ExecutionMode m : ExecutionMode.values())
948	>	for (boolean createIncomplete : new boolean[] { true, false })
949	>	for (Integer v1 : new Integer[] { 1, null })
950	>	{
951	>	final AtomicInteger a = new AtomicInteger(0);
952	>	final CFException ex = new CFException();
953	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
954	>	if (!createIncomplete) f.completeExceptionally(ex);
955	>	final CompletableFuture<Integer> g = m.exceptionally
956	>	(f, (Throwable t) -> {
957	>	m.checkExecutionMode();
958	>	threadAssertSame(t, ex);
959	>	a.getAndIncrement();
960	>	return v1;
961	>	});
962	>	if (createIncomplete) f.completeExceptionally(ex);
963	>
964	>	checkCompletedNormally(g, v1);
965	>	assertEquals(1, a.get());
966	>	}}
967	>
968	>	/**
969	>	* If an "exceptionally action" throws an exception, it completes
970	>	* exceptionally with that exception
971	>	*/
972	>	public void testExceptionally_exceptionalCompletionActionFailed() {
973	>	for (ExecutionMode m : ExecutionMode.values())
974	>	for (boolean createIncomplete : new boolean[] { true, false })
975	>	{
976	>	final AtomicInteger a = new AtomicInteger(0);
977	>	final CFException ex1 = new CFException();
978	>	final CFException ex2 = new CFException();
979	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
980	>	if (!createIncomplete) f.completeExceptionally(ex1);
981	>	final CompletableFuture<Integer> g = m.exceptionally
982	>	(f, (Throwable t) -> {
983	>	m.checkExecutionMode();
984	>	threadAssertSame(t, ex1);
985	>	a.getAndIncrement();
986	>	throw ex2;
987	>	});
988	>	if (createIncomplete) f.completeExceptionally(ex1);
989	>
990	>	checkCompletedWithWrappedException(g, ex2);
991	>	checkCompletedExceptionally(f, ex1);
992	>	assertEquals(1, a.get());
993	>	}}
994	>
995	>	/**
996	>	* whenComplete action executes on normal completion, propagating
997	>	* source result.
998	>	*/
999	>	public void testWhenComplete_normalCompletion() {
1000	>	for (ExecutionMode m : ExecutionMode.values())
1001	>	for (boolean createIncomplete : new boolean[] { true, false })
1002	>	for (Integer v1 : new Integer[] { 1, null })
1003	>	{
1004	>	final AtomicInteger a = new AtomicInteger(0);
1005	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1006	>	if (!createIncomplete) assertTrue(f.complete(v1));
1007	>	final CompletableFuture<Integer> g = m.whenComplete
1008	>	(f,
1009	>	(Integer result, Throwable t) -> {
1010	>	m.checkExecutionMode();
1011	>	threadAssertSame(result, v1);
1012	>	threadAssertNull(t);
1013	>	a.getAndIncrement();
1014	>	});
1015	>	if (createIncomplete) assertTrue(f.complete(v1));
1016	>
1017	>	checkCompletedNormally(g, v1);
1018	>	checkCompletedNormally(f, v1);
1019	>	assertEquals(1, a.get());
1020	>	}}
1021	>
1022	>	/**
1023	>	* whenComplete action executes on exceptional completion, propagating
1024	>	* source result.
1025	>	*/
1026	>	public void testWhenComplete_exceptionalCompletion() {
1027	>	for (ExecutionMode m : ExecutionMode.values())
1028	>	for (boolean createIncomplete : new boolean[] { true, false })
1029	>	{
1030	>	final AtomicInteger a = new AtomicInteger(0);
1031	>	final CFException ex = new CFException();
1032	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1033	>	if (!createIncomplete) f.completeExceptionally(ex);
1034	>	final CompletableFuture<Integer> g = m.whenComplete
1035	>	(f,
1036	>	(Integer result, Throwable t) -> {
1037	>	m.checkExecutionMode();
1038	>	threadAssertNull(result);
1039	>	threadAssertSame(t, ex);
1040	>	a.getAndIncrement();
1041	>	});
1042	>	if (createIncomplete) f.completeExceptionally(ex);
1043	>
1044	>	checkCompletedWithWrappedException(g, ex);
1045	>	checkCompletedExceptionally(f, ex);
1046	>	assertEquals(1, a.get());
1047	>	}}
1048	>
1049	>	/**
1050	>	* whenComplete action executes on cancelled source, propagating
1051	>	* CancellationException.
1052	>	*/
1053	>	public void testWhenComplete_sourceCancelled() {
1054	>	for (ExecutionMode m : ExecutionMode.values())
1055	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1056	>	for (boolean createIncomplete : new boolean[] { true, false })
1057	>	{
1058	>	final AtomicInteger a = new AtomicInteger(0);
1059	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1060	>	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1061	>	final CompletableFuture<Integer> g = m.whenComplete
1062	>	(f,
1063	>	(Integer result, Throwable t) -> {
1064	>	m.checkExecutionMode();
1065	>	threadAssertNull(result);
1066	>	threadAssertTrue(t instanceof CancellationException);
1067	>	a.getAndIncrement();
1068	>	});
1069	>	if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1070
1071	<	f = new CompletableFuture<Integer>();
1072	<	r = new ExceptionToInteger();
1073	<	g = f.exceptionally(r);
1074	<	f.complete(one);
382	<	checkCompletedNormally(g, one);
383	<	}
1071	>	checkCompletedWithWrappedCancellationException(g);
1072	>	checkCancelled(f);
1073	>	assertEquals(1, a.get());
1074	>	}}
1075
1076		/**
1077	<	* handle action completes normally with function value on either
1078	<	* normal or exceptional completion of source
1077	>	* If a whenComplete action throws an exception when triggered by
1078	>	* a normal completion, it completes exceptionally
1079		*/
1080	<	public void testHandle() {
1081	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1082	<	IntegerHandler r = new IntegerHandler();
1083	<	CompletableFuture<Integer> g = f.handle(r);
1084	<	f.completeExceptionally(new CFException());
1085	<	checkCompletedNormally(g, three);
1080	>	public void testWhenComplete_sourceCompletedNormallyActionFailed() {
1081	>	for (boolean createIncomplete : new boolean[] { true, false })
1082	>	for (ExecutionMode m : ExecutionMode.values())
1083	>	for (Integer v1 : new Integer[] { 1, null })
1084	>	{
1085	>	final AtomicInteger a = new AtomicInteger(0);
1086	>	final CFException ex = new CFException();
1087	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1088	>	if (!createIncomplete) assertTrue(f.complete(v1));
1089	>	final CompletableFuture<Integer> g = m.whenComplete
1090	>	(f,
1091	>	(Integer result, Throwable t) -> {
1092	>	m.checkExecutionMode();
1093	>	threadAssertSame(result, v1);
1094	>	threadAssertNull(t);
1095	>	a.getAndIncrement();
1096	>	throw ex;
1097	>	});
1098	>	if (createIncomplete) assertTrue(f.complete(v1));
1099	>
1100	>	checkCompletedWithWrappedException(g, ex);
1101	>	checkCompletedNormally(f, v1);
1102	>	assertEquals(1, a.get());
1103	>	}}
1104	>
1105	>	/**
1106	>	* If a whenComplete action throws an exception when triggered by
1107	>	* a source completion that also throws an exception, the source
1108	>	* exception takes precedence (unlike handle)
1109	>	*/
1110	>	public void testWhenComplete_sourceFailedActionFailed() {
1111	>	for (boolean createIncomplete : new boolean[] { true, false })
1112	>	for (ExecutionMode m : ExecutionMode.values())
1113	>	{
1114	>	final AtomicInteger a = new AtomicInteger(0);
1115	>	final CFException ex1 = new CFException();
1116	>	final CFException ex2 = new CFException();
1117	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1118	>
1119	>	if (!createIncomplete) f.completeExceptionally(ex1);
1120	>	final CompletableFuture<Integer> g = m.whenComplete
1121	>	(f,
1122	>	(Integer result, Throwable t) -> {
1123	>	m.checkExecutionMode();
1124	>	threadAssertSame(t, ex1);
1125	>	threadAssertNull(result);
1126	>	a.getAndIncrement();
1127	>	throw ex2;
1128	>	});
1129	>	if (createIncomplete) f.completeExceptionally(ex1);
1130	>
1131	>	checkCompletedWithWrappedException(g, ex1);
1132	>	checkCompletedExceptionally(f, ex1);
1133	>	if (testImplementationDetails) {
1134	>	assertEquals(1, ex1.getSuppressed().length);
1135	>	assertSame(ex2, ex1.getSuppressed()[0]);
1136	>	}
1137	>	assertEquals(1, a.get());
1138	>	}}
1139
1140	<	f = new CompletableFuture<Integer>();
1141	<	r = new IntegerHandler();
1142	<	g = f.handle(r);
1143	<	f.complete(one);
1144	<	checkCompletedNormally(g, two);
1145	<	}
1140	>	/**
1141	>	* handle action completes normally with function value on normal
1142	>	* completion of source
1143	>	*/
1144	>	public void testHandle_normalCompletion() {
1145	>	for (ExecutionMode m : ExecutionMode.values())
1146	>	for (boolean createIncomplete : new boolean[] { true, false })
1147	>	for (Integer v1 : new Integer[] { 1, null })
1148	>	{
1149	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1150	>	final AtomicInteger a = new AtomicInteger(0);
1151	>	if (!createIncomplete) assertTrue(f.complete(v1));
1152	>	final CompletableFuture<Integer> g = m.handle
1153	>	(f,
1154	>	(Integer result, Throwable t) -> {
1155	>	m.checkExecutionMode();
1156	>	threadAssertSame(result, v1);
1157	>	threadAssertNull(t);
1158	>	a.getAndIncrement();
1159	>	return inc(v1);
1160	>	});
1161	>	if (createIncomplete) assertTrue(f.complete(v1));
1162	>
1163	>	checkCompletedNormally(g, inc(v1));
1164	>	checkCompletedNormally(f, v1);
1165	>	assertEquals(1, a.get());
1166	>	}}
1167	>
1168	>	/**
1169	>	* handle action completes normally with function value on
1170	>	* exceptional completion of source
1171	>	*/
1172	>	public void testHandle_exceptionalCompletion() {
1173	>	for (ExecutionMode m : ExecutionMode.values())
1174	>	for (boolean createIncomplete : new boolean[] { true, false })
1175	>	for (Integer v1 : new Integer[] { 1, null })
1176	>	{
1177	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1178	>	final AtomicInteger a = new AtomicInteger(0);
1179	>	final CFException ex = new CFException();
1180	>	if (!createIncomplete) f.completeExceptionally(ex);
1181	>	final CompletableFuture<Integer> g = m.handle
1182	>	(f,
1183	>	(Integer result, Throwable t) -> {
1184	>	m.checkExecutionMode();
1185	>	threadAssertNull(result);
1186	>	threadAssertSame(t, ex);
1187	>	a.getAndIncrement();
1188	>	return v1;
1189	>	});
1190	>	if (createIncomplete) f.completeExceptionally(ex);
1191	>
1192	>	checkCompletedNormally(g, v1);
1193	>	checkCompletedExceptionally(f, ex);
1194	>	assertEquals(1, a.get());
1195	>	}}
1196	>
1197	>	/**
1198	>	* handle action completes normally with function value on
1199	>	* cancelled source
1200	>	*/
1201	>	public void testHandle_sourceCancelled() {
1202	>	for (ExecutionMode m : ExecutionMode.values())
1203	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1204	>	for (boolean createIncomplete : new boolean[] { true, false })
1205	>	for (Integer v1 : new Integer[] { 1, null })
1206	>	{
1207	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1208	>	final AtomicInteger a = new AtomicInteger(0);
1209	>	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1210	>	final CompletableFuture<Integer> g = m.handle
1211	>	(f,
1212	>	(Integer result, Throwable t) -> {
1213	>	m.checkExecutionMode();
1214	>	threadAssertNull(result);
1215	>	threadAssertTrue(t instanceof CancellationException);
1216	>	a.getAndIncrement();
1217	>	return v1;
1218	>	});
1219	>	if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1220	>
1221	>	checkCompletedNormally(g, v1);
1222	>	checkCancelled(f);
1223	>	assertEquals(1, a.get());
1224	>	}}
1225
1226		/**
1227	<	* runAsync completes after running Runnable
1227	>	* If a "handle action" throws an exception when triggered by
1228	>	* a normal completion, it completes exceptionally
1229		*/
1230	<	public void testRunAsync() {
1231	<	Noop r = new Noop();
1232	<	CompletableFuture<Void> f = CompletableFuture.runAsync(r);
1233	<	assertNull(f.join());
1234	<	assertTrue(r.ran);
1235	<	}
1230	>	public void testHandle_sourceCompletedNormallyActionFailed() {
1231	>	for (ExecutionMode m : ExecutionMode.values())
1232	>	for (boolean createIncomplete : new boolean[] { true, false })
1233	>	for (Integer v1 : new Integer[] { 1, null })
1234	>	{
1235	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1236	>	final AtomicInteger a = new AtomicInteger(0);
1237	>	final CFException ex = new CFException();
1238	>	if (!createIncomplete) assertTrue(f.complete(v1));
1239	>	final CompletableFuture<Integer> g = m.handle
1240	>	(f,
1241	>	(Integer result, Throwable t) -> {
1242	>	m.checkExecutionMode();
1243	>	threadAssertSame(result, v1);
1244	>	threadAssertNull(t);
1245	>	a.getAndIncrement();
1246	>	throw ex;
1247	>	});
1248	>	if (createIncomplete) assertTrue(f.complete(v1));
1249	>
1250	>	checkCompletedWithWrappedException(g, ex);
1251	>	checkCompletedNormally(f, v1);
1252	>	assertEquals(1, a.get());
1253	>	}}
1254	>
1255	>	/**
1256	>	* If a "handle action" throws an exception when triggered by
1257	>	* a source completion that also throws an exception, the action
1258	>	* exception takes precedence (unlike whenComplete)
1259	>	*/
1260	>	public void testHandle_sourceFailedActionFailed() {
1261	>	for (boolean createIncomplete : new boolean[] { true, false })
1262	>	for (ExecutionMode m : ExecutionMode.values())
1263	>	{
1264	>	final AtomicInteger a = new AtomicInteger(0);
1265	>	final CFException ex1 = new CFException();
1266	>	final CFException ex2 = new CFException();
1267	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1268	>
1269	>	if (!createIncomplete) f.completeExceptionally(ex1);
1270	>	final CompletableFuture<Integer> g = m.handle
1271	>	(f,
1272	>	(Integer result, Throwable t) -> {
1273	>	m.checkExecutionMode();
1274	>	threadAssertNull(result);
1275	>	threadAssertSame(ex1, t);
1276	>	a.getAndIncrement();
1277	>	throw ex2;
1278	>	});
1279	>	if (createIncomplete) f.completeExceptionally(ex1);
1280	>
1281	>	checkCompletedWithWrappedException(g, ex2);
1282	>	checkCompletedExceptionally(f, ex1);
1283	>	assertEquals(1, a.get());
1284	>	}}
1285
1286		/**
1287	<	* runAsync with executor completes after running Runnable
1287	>	* runAsync completes after running Runnable
1288		*/
1289	<	public void testRunAsync2() {
1290	<	Noop r = new Noop();
1291	<	CompletableFuture<Void> f = CompletableFuture.runAsync(r, new ThreadExecutor());
1289	>	public void testRunAsync_normalCompletion() {
1290	>	ExecutionMode[] executionModes = {
1291	>	ExecutionMode.ASYNC,
1292	>	ExecutionMode.EXECUTOR,
1293	>	};
1294	>	for (ExecutionMode m : executionModes)
1295	>	{
1296	>	final Noop r = new Noop(m);
1297	>	final CompletableFuture<Void> f = m.runAsync(r);
1298		assertNull(f.join());
1299	<	assertTrue(r.ran);
1300	<	}
1299	>	checkCompletedNormally(f, null);
1300	>	r.assertInvoked();
1301	>	}}
1302
1303		/**
1304		* failing runAsync completes exceptionally after running Runnable
1305		*/
1306	<	public void testRunAsync3() {
1307	<	FailingNoop r = new FailingNoop();
1308	<	CompletableFuture<Void> f = CompletableFuture.runAsync(r);
1309	<	checkCompletedWithWrappedCFException(f);
1310	<	assertTrue(r.ran);
1311	<	}
1306	>	public void testRunAsync_exceptionalCompletion() {
1307	>	ExecutionMode[] executionModes = {
1308	>	ExecutionMode.ASYNC,
1309	>	ExecutionMode.EXECUTOR,
1310	>	};
1311	>	for (ExecutionMode m : executionModes)
1312	>	{
1313	>	final FailingRunnable r = new FailingRunnable(m);
1314	>	final CompletableFuture<Void> f = m.runAsync(r);
1315	>	checkCompletedWithWrappedException(f, r.ex);
1316	>	r.assertInvoked();
1317	>	}}
1318	>
1319	>	@SuppressWarnings("FutureReturnValueIgnored")
1320	>	public void testRunAsync_rejectingExecutor() {
1321	>	CountingRejectingExecutor e = new CountingRejectingExecutor();
1322	>	try {
1323	>	CompletableFuture.runAsync(() -> {}, e);
1324	>	shouldThrow();
1325	>	} catch (Throwable t) {
1326	>	assertSame(e.ex, t);
1327	>	}
1328
1329	<	/**
434	<	* supplyAsync completes with result of supplier
435	<	*/
436	<	public void testSupplyAsync() {
437	<	CompletableFuture<Integer> f = CompletableFuture.supplyAsync(supplyOne);
438	<	assertEquals(f.join(), one);
1329	>	assertEquals(1, e.count.get());
1330		}
1331
1332		/**
1333	<	* supplyAsync with executor completes with result of supplier
1333	>	* supplyAsync completes with result of supplier
1334		*/
1335	<	public void testSupplyAsync2() {
1336	<	CompletableFuture<Integer> f = CompletableFuture.supplyAsync(supplyOne, new ThreadExecutor());
1337	<	assertEquals(f.join(), one);
1338	<	}
1335	>	public void testSupplyAsync_normalCompletion() {
1336	>	ExecutionMode[] executionModes = {
1337	>	ExecutionMode.ASYNC,
1338	>	ExecutionMode.EXECUTOR,
1339	>	};
1340	>	for (ExecutionMode m : executionModes)
1341	>	for (Integer v1 : new Integer[] { 1, null })
1342	>	{
1343	>	final IntegerSupplier r = new IntegerSupplier(m, v1);
1344	>	final CompletableFuture<Integer> f = m.supplyAsync(r);
1345	>	assertSame(v1, f.join());
1346	>	checkCompletedNormally(f, v1);
1347	>	r.assertInvoked();
1348	>	}}
1349
1350		/**
1351		* Failing supplyAsync completes exceptionally
1352		*/
1353	<	public void testSupplyAsync3() {
1354	<	FailingSupplier r = new FailingSupplier();
1355	<	CompletableFuture<Integer> f = CompletableFuture.supplyAsync(r);
1356	<	checkCompletedWithWrappedCFException(f);
1357	<	assertTrue(r.ran);
1353	>	public void testSupplyAsync_exceptionalCompletion() {
1354	>	ExecutionMode[] executionModes = {
1355	>	ExecutionMode.ASYNC,
1356	>	ExecutionMode.EXECUTOR,
1357	>	};
1358	>	for (ExecutionMode m : executionModes)
1359	>	{
1360	>	FailingSupplier r = new FailingSupplier(m);
1361	>	CompletableFuture<Integer> f = m.supplyAsync(r);
1362	>	checkCompletedWithWrappedException(f, r.ex);
1363	>	r.assertInvoked();
1364	>	}}
1365	>
1366	>	@SuppressWarnings("FutureReturnValueIgnored")
1367	>	public void testSupplyAsync_rejectingExecutor() {
1368	>	CountingRejectingExecutor e = new CountingRejectingExecutor();
1369	>	try {
1370	>	CompletableFuture.supplyAsync(() -> null, e);
1371	>	shouldThrow();
1372	>	} catch (Throwable t) {
1373	>	assertSame(e.ex, t);
1374	>	}
1375	>
1376	>	assertEquals(1, e.count.get());
1377		}
1378
1379	<	// seq conmpletion methods
1379	>	// seq completion methods
1380
1381		/**
1382		* thenRun result completes normally after normal completion of source
1383		*/
1384	<	public void testThenRun() {
1385	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1386	<	Noop r = new Noop();
1387	<	CompletableFuture<Void> g = f.thenRun(r);
1388	<	f.complete(null);
1389	<	checkCompletedNormally(g, null);
1390	<	// reordered version
1391	<	f = new CompletableFuture<Integer>();
1392	<	f.complete(null);
1393	<	r = new Noop();
1394	<	g = f.thenRun(r);
1395	<	checkCompletedNormally(g, null);
1396	<	}
1384	>	public void testThenRun_normalCompletion() {
1385	>	for (ExecutionMode m : ExecutionMode.values())
1386	>	for (Integer v1 : new Integer[] { 1, null })
1387	>	{
1388	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1389	>	final Noop[] rs = new Noop[6];
1390	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1391	>
1392	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1393	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1394	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1395	>	checkIncomplete(h0);
1396	>	checkIncomplete(h1);
1397	>	checkIncomplete(h2);
1398	>	assertTrue(f.complete(v1));
1399	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1400	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1401	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1402	>
1403	>	checkCompletedNormally(h0, null);
1404	>	checkCompletedNormally(h1, null);
1405	>	checkCompletedNormally(h2, null);
1406	>	checkCompletedNormally(h3, null);
1407	>	checkCompletedNormally(h4, null);
1408	>	checkCompletedNormally(h5, null);
1409	>	checkCompletedNormally(f, v1);
1410	>	for (Noop r : rs) r.assertInvoked();
1411	>	}}
1412
1413		/**
1414		* thenRun result completes exceptionally after exceptional
1415		* completion of source
1416		*/
1417	<	public void testThenRun2() {
1418	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1419	<	Noop r = new Noop();
1420	<	CompletableFuture<Void> g = f.thenRun(r);
1421	<	f.completeExceptionally(new CFException());
1422	<	checkCompletedWithWrappedCFException(g);
1423	<	}
1417	>	public void testThenRun_exceptionalCompletion() {
1418	>	for (ExecutionMode m : ExecutionMode.values())
1419	>	{
1420	>	final CFException ex = new CFException();
1421	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1422	>	final Noop[] rs = new Noop[6];
1423	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1424	>
1425	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1426	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1427	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1428	>	checkIncomplete(h0);
1429	>	checkIncomplete(h1);
1430	>	checkIncomplete(h2);
1431	>	assertTrue(f.completeExceptionally(ex));
1432	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1433	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1434	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1435	>
1436	>	checkCompletedWithWrappedException(h0, ex);
1437	>	checkCompletedWithWrappedException(h1, ex);
1438	>	checkCompletedWithWrappedException(h2, ex);
1439	>	checkCompletedWithWrappedException(h3, ex);
1440	>	checkCompletedWithWrappedException(h4, ex);
1441	>	checkCompletedWithWrappedException(h5, ex);
1442	>	checkCompletedExceptionally(f, ex);
1443	>	for (Noop r : rs) r.assertNotInvoked();
1444	>	}}
1445
1446		/**
1447	<	* thenRun result completes exceptionally if action does
1447	>	* thenRun result completes exceptionally if source cancelled
1448		*/
1449	<	public void testThenRun3() {
1450	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1451	<	FailingNoop r = new FailingNoop();
1452	<	CompletableFuture<Void> g = f.thenRun(r);
1453	<	f.complete(null);
1454	<	checkCompletedWithWrappedCFException(g);
1455	<	}
1449	>	public void testThenRun_sourceCancelled() {
1450	>	for (ExecutionMode m : ExecutionMode.values())
1451	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1452	>	{
1453	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1454	>	final Noop[] rs = new Noop[6];
1455	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1456	>
1457	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1458	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1459	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1460	>	checkIncomplete(h0);
1461	>	checkIncomplete(h1);
1462	>	checkIncomplete(h2);
1463	>	assertTrue(f.cancel(mayInterruptIfRunning));
1464	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1465	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1466	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1467	>
1468	>	checkCompletedWithWrappedCancellationException(h0);
1469	>	checkCompletedWithWrappedCancellationException(h1);
1470	>	checkCompletedWithWrappedCancellationException(h2);
1471	>	checkCompletedWithWrappedCancellationException(h3);
1472	>	checkCompletedWithWrappedCancellationException(h4);
1473	>	checkCompletedWithWrappedCancellationException(h5);
1474	>	checkCancelled(f);
1475	>	for (Noop r : rs) r.assertNotInvoked();
1476	>	}}
1477
1478		/**
1479	<	* thenRun result completes exceptionally if source cancelled
1479	>	* thenRun result completes exceptionally if action does
1480		*/
1481	<	public void testThenRun4() {
1482	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1483	<	Noop r = new Noop();
1484	<	CompletableFuture<Void> g = f.thenRun(r);
1485	<	assertTrue(f.cancel(true));
1486	<	checkCompletedWithWrappedCancellationException(g);
1487	<	}
1481	>	public void testThenRun_actionFailed() {
1482	>	for (ExecutionMode m : ExecutionMode.values())
1483	>	for (Integer v1 : new Integer[] { 1, null })
1484	>	{
1485	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1486	>	final FailingRunnable[] rs = new FailingRunnable[6];
1487	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingRunnable(m);
1488	>
1489	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1490	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1491	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1492	>	assertTrue(f.complete(v1));
1493	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1494	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1495	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1496	>
1497	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1498	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1499	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1500	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1501	>	checkCompletedWithWrappedException(h4, rs[4].ex);
1502	>	checkCompletedWithWrappedException(h5, rs[5].ex);
1503	>	checkCompletedNormally(f, v1);
1504	>	}}
1505
1506		/**
1507		* thenApply result completes normally after normal completion of source
1508		*/
1509	<	public void testThenApply() {
1510	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1511	<	CompletableFuture<Integer> g = f.thenApply(inc);
1512	<	f.complete(one);
1513	<	checkCompletedNormally(g, two);
1514	<	}
1509	>	public void testThenApply_normalCompletion() {
1510	>	for (ExecutionMode m : ExecutionMode.values())
1511	>	for (Integer v1 : new Integer[] { 1, null })
1512	>	{
1513	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1514	>	final IncFunction[] rs = new IncFunction[4];
1515	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1516	>
1517	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1518	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1519	>	checkIncomplete(h0);
1520	>	checkIncomplete(h1);
1521	>	assertTrue(f.complete(v1));
1522	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1523	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1524	>
1525	>	checkCompletedNormally(h0, inc(v1));
1526	>	checkCompletedNormally(h1, inc(v1));
1527	>	checkCompletedNormally(h2, inc(v1));
1528	>	checkCompletedNormally(h3, inc(v1));
1529	>	checkCompletedNormally(f, v1);
1530	>	for (IncFunction r : rs) r.assertValue(inc(v1));
1531	>	}}
1532
1533		/**
1534		* thenApply result completes exceptionally after exceptional
1535		* completion of source
1536		*/
1537	<	public void testThenApply2() {
1538	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1539	<	CompletableFuture<Integer> g = f.thenApply(inc);
1540	<	f.completeExceptionally(new CFException());
1541	<	checkCompletedWithWrappedCFException(g);
1542	<	}
1537	>	public void testThenApply_exceptionalCompletion() {
1538	>	for (ExecutionMode m : ExecutionMode.values())
1539	>	{
1540	>	final CFException ex = new CFException();
1541	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1542	>	final IncFunction[] rs = new IncFunction[4];
1543	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1544	>
1545	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1546	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1547	>	assertTrue(f.completeExceptionally(ex));
1548	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1549	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1550	>
1551	>	checkCompletedWithWrappedException(h0, ex);
1552	>	checkCompletedWithWrappedException(h1, ex);
1553	>	checkCompletedWithWrappedException(h2, ex);
1554	>	checkCompletedWithWrappedException(h3, ex);
1555	>	checkCompletedExceptionally(f, ex);
1556	>	for (IncFunction r : rs) r.assertNotInvoked();
1557	>	}}
1558
1559		/**
1560	<	* thenApply result completes exceptionally if action does
1560	>	* thenApply result completes exceptionally if source cancelled
1561		*/
1562	<	public void testThenApply3() {
1563	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1564	<	CompletableFuture<Integer> g = f.thenApply(new FailingFunction());
1565	<	f.complete(one);
1566	<	checkCompletedWithWrappedCFException(g);
1567	<	}
1562	>	public void testThenApply_sourceCancelled() {
1563	>	for (ExecutionMode m : ExecutionMode.values())
1564	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1565	>	{
1566	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1567	>	final IncFunction[] rs = new IncFunction[4];
1568	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1569	>
1570	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1571	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1572	>	assertTrue(f.cancel(mayInterruptIfRunning));
1573	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1574	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1575	>
1576	>	checkCompletedWithWrappedCancellationException(h0);
1577	>	checkCompletedWithWrappedCancellationException(h1);
1578	>	checkCompletedWithWrappedCancellationException(h2);
1579	>	checkCompletedWithWrappedCancellationException(h3);
1580	>	checkCancelled(f);
1581	>	for (IncFunction r : rs) r.assertNotInvoked();
1582	>	}}
1583
1584		/**
1585	<	* thenApply result completes exceptionally if source cancelled
1585	>	* thenApply result completes exceptionally if action does
1586		*/
1587	<	public void testThenApply4() {
1588	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1589	<	CompletableFuture<Integer> g = f.thenApply(inc);
1590	<	assertTrue(f.cancel(true));
1591	<	checkCompletedWithWrappedCancellationException(g);
1592	<	}
1587	>	public void testThenApply_actionFailed() {
1588	>	for (ExecutionMode m : ExecutionMode.values())
1589	>	for (Integer v1 : new Integer[] { 1, null })
1590	>	{
1591	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1592	>	final FailingFunction[] rs = new FailingFunction[4];
1593	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingFunction(m);
1594	>
1595	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1596	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1597	>	assertTrue(f.complete(v1));
1598	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1599	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1600	>
1601	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1602	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1603	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1604	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1605	>	checkCompletedNormally(f, v1);
1606	>	}}
1607
1608		/**
1609		* thenAccept result completes normally after normal completion of source
1610		*/
1611	<	public void testThenAccept() {
1612	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1613	<	IncAction r = new IncAction();
1614	<	CompletableFuture<Void> g = f.thenAccept(r);
1615	<	f.complete(one);
1616	<	checkCompletedNormally(g, null);
1617	<	assertEquals(r.value, 2);
1618	<	}
1611	>	public void testThenAccept_normalCompletion() {
1612	>	for (ExecutionMode m : ExecutionMode.values())
1613	>	for (Integer v1 : new Integer[] { 1, null })
1614	>	{
1615	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1616	>	final NoopConsumer[] rs = new NoopConsumer[4];
1617	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1618	>
1619	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1620	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1621	>	checkIncomplete(h0);
1622	>	checkIncomplete(h1);
1623	>	assertTrue(f.complete(v1));
1624	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1625	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1626	>
1627	>	checkCompletedNormally(h0, null);
1628	>	checkCompletedNormally(h1, null);
1629	>	checkCompletedNormally(h2, null);
1630	>	checkCompletedNormally(h3, null);
1631	>	checkCompletedNormally(f, v1);
1632	>	for (NoopConsumer r : rs) r.assertValue(v1);
1633	>	}}
1634
1635		/**
1636		* thenAccept result completes exceptionally after exceptional
1637		* completion of source
1638		*/
1639	<	public void testThenAccept2() {
1640	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1641	<	IncAction r = new IncAction();
1642	<	CompletableFuture<Void> g = f.thenAccept(r);
1643	<	f.completeExceptionally(new CFException());
1644	<	checkCompletedWithWrappedCFException(g);
1645	<	}
1646	<
1647	<	/**
1648	<	* thenAccept result completes exceptionally if action does
1649	<	*/
1650	<	public void testThenAccept3() {
1651	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1652	<	FailingConsumer r = new FailingConsumer();
1653	<	CompletableFuture<Void> g = f.thenAccept(r);
1654	<	f.complete(one);
1655	<	checkCompletedWithWrappedCFException(g);
1656	<	assertTrue(r.ran);
1657	<	}
1639	>	public void testThenAccept_exceptionalCompletion() {
1640	>	for (ExecutionMode m : ExecutionMode.values())
1641	>	{
1642	>	final CFException ex = new CFException();
1643	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1644	>	final NoopConsumer[] rs = new NoopConsumer[4];
1645	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1646	>
1647	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1648	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1649	>	assertTrue(f.completeExceptionally(ex));
1650	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1651	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1652	>
1653	>	checkCompletedWithWrappedException(h0, ex);
1654	>	checkCompletedWithWrappedException(h1, ex);
1655	>	checkCompletedWithWrappedException(h2, ex);
1656	>	checkCompletedWithWrappedException(h3, ex);
1657	>	checkCompletedExceptionally(f, ex);
1658	>	for (NoopConsumer r : rs) r.assertNotInvoked();
1659	>	}}
1660
1661		/**
1662		* thenAccept result completes exceptionally if source cancelled
1663		*/
1664	<	public void testThenAccept4() {
1665	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1666	<	IncAction r = new IncAction();
1667	<	CompletableFuture<Void> g = f.thenAccept(r);
1668	<	assertTrue(f.cancel(true));
1669	<	checkCompletedWithWrappedCancellationException(g);
1670	<	}
1671	<
1664	>	public void testThenAccept_sourceCancelled() {
1665	>	for (ExecutionMode m : ExecutionMode.values())
1666	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1667	>	{
1668	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1669	>	final NoopConsumer[] rs = new NoopConsumer[4];
1670	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1671	>
1672	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1673	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1674	>	assertTrue(f.cancel(mayInterruptIfRunning));
1675	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1676	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1677	>
1678	>	checkCompletedWithWrappedCancellationException(h0);
1679	>	checkCompletedWithWrappedCancellationException(h1);
1680	>	checkCompletedWithWrappedCancellationException(h2);
1681	>	checkCompletedWithWrappedCancellationException(h3);
1682	>	checkCancelled(f);
1683	>	for (NoopConsumer r : rs) r.assertNotInvoked();
1684	>	}}
1685
1686		/**
1687	<	* thenCombine result completes normally after normal completion of sources
1687	>	* thenAccept result completes exceptionally if action does
1688		*/
1689	<	public void testThenCombine() {
1690	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1691	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1692	<	CompletableFuture<Integer> g = f.thenCombine(f2, add);
1693	<	f.complete(one);
1694	<	checkIncomplete(g);
1695	<	f2.complete(two);
1696	<	checkCompletedNormally(g, three);
1697	<
1698	<	f = new CompletableFuture<Integer>();
1699	<	f.complete(one);
1700	<	f2 = new CompletableFuture<Integer>();
1701	<	g = f.thenCombine(f2, add);
1702	<	checkIncomplete(g);
1703	<	f2.complete(two);
1704	<	checkCompletedNormally(g, three);
1705	<	}
1689	>	public void testThenAccept_actionFailed() {
1690	>	for (ExecutionMode m : ExecutionMode.values())
1691	>	for (Integer v1 : new Integer[] { 1, null })
1692	>	{
1693	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1694	>	final FailingConsumer[] rs = new FailingConsumer[4];
1695	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingConsumer(m);
1696	>
1697	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1698	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1699	>	assertTrue(f.complete(v1));
1700	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1701	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1702	>
1703	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1704	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1705	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1706	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1707	>	checkCompletedNormally(f, v1);
1708	>	}}
1709	>
1710	>	/**
1711	>	* thenCombine result completes normally after normal completion
1712	>	* of sources
1713	>	*/
1714	>	public void testThenCombine_normalCompletion() {
1715	>	for (ExecutionMode m : ExecutionMode.values())
1716	>	for (boolean fFirst : new boolean[] { true, false })
1717	>	for (Integer v1 : new Integer[] { 1, null })
1718	>	for (Integer v2 : new Integer[] { 2, null })
1719	>	{
1720	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1721	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1722	>	final SubtractFunction[] rs = new SubtractFunction[6];
1723	>	for (int i = 0; i < rs.length; i++) rs[i] = new SubtractFunction(m);
1724	>
1725	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1726	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1727	>	final Integer w1 =  fFirst ? v1 : v2;
1728	>	final Integer w2 = !fFirst ? v1 : v2;
1729	>
1730	>	final CompletableFuture<Integer> h0 = m.thenCombine(f, g, rs[0]);
1731	>	final CompletableFuture<Integer> h1 = m.thenCombine(fst, fst, rs[1]);
1732	>	assertTrue(fst.complete(w1));
1733	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, rs[2]);
1734	>	final CompletableFuture<Integer> h3 = m.thenCombine(fst, fst, rs[3]);
1735	>	checkIncomplete(h0); rs[0].assertNotInvoked();
1736	>	checkIncomplete(h2); rs[2].assertNotInvoked();
1737	>	checkCompletedNormally(h1, subtract(w1, w1));
1738	>	checkCompletedNormally(h3, subtract(w1, w1));
1739	>	rs[1].assertValue(subtract(w1, w1));
1740	>	rs[3].assertValue(subtract(w1, w1));
1741	>	assertTrue(snd.complete(w2));
1742	>	final CompletableFuture<Integer> h4 = m.thenCombine(f, g, rs[4]);
1743	>
1744	>	checkCompletedNormally(h0, subtract(v1, v2));
1745	>	checkCompletedNormally(h2, subtract(v1, v2));
1746	>	checkCompletedNormally(h4, subtract(v1, v2));
1747	>	rs[0].assertValue(subtract(v1, v2));
1748	>	rs[2].assertValue(subtract(v1, v2));
1749	>	rs[4].assertValue(subtract(v1, v2));
1750	>
1751	>	checkCompletedNormally(f, v1);
1752	>	checkCompletedNormally(g, v2);
1753	>	}}
1754
1755		/**
1756		* thenCombine result completes exceptionally after exceptional
1757		* completion of either source
1758		*/
1759	<	public void testThenCombine2() {
1760	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1761	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1762	<	CompletableFuture<Integer> g = f.thenCombine(f2, add);
1763	<	f.completeExceptionally(new CFException());
1764	<	f2.complete(two);
1765	<	checkCompletedWithWrappedCFException(g);
1766	<
1767	<	f = new CompletableFuture<Integer>();
1768	<	f.complete(one);
1769	<	f2 = new CompletableFuture<Integer>();
1770	<	g = f.thenCombine(f2, add);
1771	<	f2.completeExceptionally(new CFException());
1772	<	checkCompletedWithWrappedCFException(g);
1773	<	}
1759	>	public void testThenCombine_exceptionalCompletion() throws Throwable {
1760	>	for (ExecutionMode m : ExecutionMode.values())
1761	>	for (boolean fFirst : new boolean[] { true, false })
1762	>	for (boolean failFirst : new boolean[] { true, false })
1763	>	for (Integer v1 : new Integer[] { 1, null })
1764	>	{
1765	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1766	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1767	>	final CFException ex = new CFException();
1768	>	final SubtractFunction r1 = new SubtractFunction(m);
1769	>	final SubtractFunction r2 = new SubtractFunction(m);
1770	>	final SubtractFunction r3 = new SubtractFunction(m);
1771	>
1772	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1773	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1774	>	final Callable<Boolean> complete1 = failFirst ?
1775	>	() -> fst.completeExceptionally(ex) :
1776	>	() -> fst.complete(v1);
1777	>	final Callable<Boolean> complete2 = failFirst ?
1778	>	() -> snd.complete(v1) :
1779	>	() -> snd.completeExceptionally(ex);
1780	>
1781	>	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1782	>	assertTrue(complete1.call());
1783	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1784	>	checkIncomplete(h1);
1785	>	checkIncomplete(h2);
1786	>	assertTrue(complete2.call());
1787	>	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1788	>
1789	>	checkCompletedWithWrappedException(h1, ex);
1790	>	checkCompletedWithWrappedException(h2, ex);
1791	>	checkCompletedWithWrappedException(h3, ex);
1792	>	r1.assertNotInvoked();
1793	>	r2.assertNotInvoked();
1794	>	r3.assertNotInvoked();
1795	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1796	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
1797	>	}}
1798
1799		/**
1800	<	* thenCombine result completes exceptionally if action does
1800	>	* thenCombine result completes exceptionally if either source cancelled
1801		*/
1802	<	public void testThenCombine3() {
1803	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1804	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1805	<	FailingBiFunction r = new FailingBiFunction();
1806	<	CompletableFuture<Integer> g = f.thenCombine(f2, r);
1807	<	f.complete(one);
1808	<	checkIncomplete(g);
1809	<	f2.complete(two);
1810	<	checkCompletedWithWrappedCFException(g);
1811	<	}
1802	>	public void testThenCombine_sourceCancelled() throws Throwable {
1803	>	for (ExecutionMode m : ExecutionMode.values())
1804	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1805	>	for (boolean fFirst : new boolean[] { true, false })
1806	>	for (boolean failFirst : new boolean[] { true, false })
1807	>	for (Integer v1 : new Integer[] { 1, null })
1808	>	{
1809	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1810	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1811	>	final SubtractFunction r1 = new SubtractFunction(m);
1812	>	final SubtractFunction r2 = new SubtractFunction(m);
1813	>	final SubtractFunction r3 = new SubtractFunction(m);
1814	>
1815	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1816	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1817	>	final Callable<Boolean> complete1 = failFirst ?
1818	>	() -> fst.cancel(mayInterruptIfRunning) :
1819	>	() -> fst.complete(v1);
1820	>	final Callable<Boolean> complete2 = failFirst ?
1821	>	() -> snd.complete(v1) :
1822	>	() -> snd.cancel(mayInterruptIfRunning);
1823	>
1824	>	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1825	>	assertTrue(complete1.call());
1826	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1827	>	checkIncomplete(h1);
1828	>	checkIncomplete(h2);
1829	>	assertTrue(complete2.call());
1830	>	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1831	>
1832	>	checkCompletedWithWrappedCancellationException(h1);
1833	>	checkCompletedWithWrappedCancellationException(h2);
1834	>	checkCompletedWithWrappedCancellationException(h3);
1835	>	r1.assertNotInvoked();
1836	>	r2.assertNotInvoked();
1837	>	r3.assertNotInvoked();
1838	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1839	>	checkCancelled(failFirst ? fst : snd);
1840	>	}}
1841
1842		/**
1843	<	* thenCombine result completes exceptionally if either source cancelled
1843	>	* thenCombine result completes exceptionally if action does
1844		*/
1845	<	public void testThenCombine4() {
1846	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1847	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1848	<	CompletableFuture<Integer> g = f.thenCombine(f2, add);
1849	<	assertTrue(f.cancel(true));
1850	<	f2.complete(two);
1851	<	checkCompletedWithWrappedCancellationException(g);
1852	<	f = new CompletableFuture<Integer>();
1853	<	f2 = new CompletableFuture<Integer>();
1854	<	g = f.thenCombine(f2, add);
1855	<	f.complete(one);
1856	<	assertTrue(f2.cancel(true));
1857	<	checkCompletedWithWrappedCancellationException(g);
1858	<	}
1845	>	public void testThenCombine_actionFailed() {
1846	>	for (ExecutionMode m : ExecutionMode.values())
1847	>	for (boolean fFirst : new boolean[] { true, false })
1848	>	for (Integer v1 : new Integer[] { 1, null })
1849	>	for (Integer v2 : new Integer[] { 2, null })
1850	>	{
1851	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1852	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1853	>	final FailingBiFunction r1 = new FailingBiFunction(m);
1854	>	final FailingBiFunction r2 = new FailingBiFunction(m);
1855	>	final FailingBiFunction r3 = new FailingBiFunction(m);
1856	>
1857	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1858	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1859	>	final Integer w1 =  fFirst ? v1 : v2;
1860	>	final Integer w2 = !fFirst ? v1 : v2;
1861	>
1862	>	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1863	>	assertTrue(fst.complete(w1));
1864	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1865	>	assertTrue(snd.complete(w2));
1866	>	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1867	>
1868	>	checkCompletedWithWrappedException(h1, r1.ex);
1869	>	checkCompletedWithWrappedException(h2, r2.ex);
1870	>	checkCompletedWithWrappedException(h3, r3.ex);
1871	>	r1.assertInvoked();
1872	>	r2.assertInvoked();
1873	>	r3.assertInvoked();
1874	>	checkCompletedNormally(f, v1);
1875	>	checkCompletedNormally(g, v2);
1876	>	}}
1877
1878		/**
1879		* thenAcceptBoth result completes normally after normal
1880		* completion of sources
1881		*/
1882	<	public void testThenAcceptBoth() {
1883	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1884	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1885	<	AddAction r = new AddAction();
1886	<	CompletableFuture<Void> g = f.thenAcceptBoth(f2, r);
1887	<	f.complete(one);
1888	<	checkIncomplete(g);
1889	<	f2.complete(two);
1890	<	checkCompletedNormally(g, null);
1891	<	assertEquals(r.value, 3);
1892	<
1893	<	r = new AddAction();
1894	<	f = new CompletableFuture<Integer>();
1895	<	f.complete(one);
1896	<	f2 = new CompletableFuture<Integer>();
1897	<	g = f.thenAcceptBoth(f2, r);
1898	<	checkIncomplete(g);
1899	<	f2.complete(two);
1900	<	checkCompletedNormally(g, null);
1901	<	assertEquals(r.value, 3);
1902	<	}
1882	>	public void testThenAcceptBoth_normalCompletion() {
1883	>	for (ExecutionMode m : ExecutionMode.values())
1884	>	for (boolean fFirst : new boolean[] { true, false })
1885	>	for (Integer v1 : new Integer[] { 1, null })
1886	>	for (Integer v2 : new Integer[] { 2, null })
1887	>	{
1888	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1889	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1890	>	final SubtractAction r1 = new SubtractAction(m);
1891	>	final SubtractAction r2 = new SubtractAction(m);
1892	>	final SubtractAction r3 = new SubtractAction(m);
1893	>
1894	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1895	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1896	>	final Integer w1 =  fFirst ? v1 : v2;
1897	>	final Integer w2 = !fFirst ? v1 : v2;
1898	>
1899	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1900	>	assertTrue(fst.complete(w1));
1901	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1902	>	checkIncomplete(h1);
1903	>	checkIncomplete(h2);
1904	>	r1.assertNotInvoked();
1905	>	r2.assertNotInvoked();
1906	>	assertTrue(snd.complete(w2));
1907	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1908	>
1909	>	checkCompletedNormally(h1, null);
1910	>	checkCompletedNormally(h2, null);
1911	>	checkCompletedNormally(h3, null);
1912	>	r1.assertValue(subtract(v1, v2));
1913	>	r2.assertValue(subtract(v1, v2));
1914	>	r3.assertValue(subtract(v1, v2));
1915	>	checkCompletedNormally(f, v1);
1916	>	checkCompletedNormally(g, v2);
1917	>	}}
1918
1919		/**
1920		* thenAcceptBoth result completes exceptionally after exceptional
1921		* completion of either source
1922		*/
1923	<	public void testThenAcceptBoth2() {
1924	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1925	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1926	<	AddAction r = new AddAction();
1927	<	CompletableFuture<Void> g = f.thenAcceptBoth(f2, r);
1928	<	f.completeExceptionally(new CFException());
1929	<	f2.complete(two);
1930	<	checkCompletedWithWrappedCFException(g);
1931	<
1932	<	r = new AddAction();
1933	<	f = new CompletableFuture<Integer>();
1934	<	f.complete(one);
1935	<	f2 = new CompletableFuture<Integer>();
1936	<	g = f.thenAcceptBoth(f2, r);
1937	<	f2.completeExceptionally(new CFException());
1938	<	checkCompletedWithWrappedCFException(g);
1939	<	}
1923	>	public void testThenAcceptBoth_exceptionalCompletion() throws Throwable {
1924	>	for (ExecutionMode m : ExecutionMode.values())
1925	>	for (boolean fFirst : new boolean[] { true, false })
1926	>	for (boolean failFirst : new boolean[] { true, false })
1927	>	for (Integer v1 : new Integer[] { 1, null })
1928	>	{
1929	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1930	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1931	>	final CFException ex = new CFException();
1932	>	final SubtractAction r1 = new SubtractAction(m);
1933	>	final SubtractAction r2 = new SubtractAction(m);
1934	>	final SubtractAction r3 = new SubtractAction(m);
1935	>
1936	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1937	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1938	>	final Callable<Boolean> complete1 = failFirst ?
1939	>	() -> fst.completeExceptionally(ex) :
1940	>	() -> fst.complete(v1);
1941	>	final Callable<Boolean> complete2 = failFirst ?
1942	>	() -> snd.complete(v1) :
1943	>	() -> snd.completeExceptionally(ex);
1944	>
1945	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1946	>	assertTrue(complete1.call());
1947	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1948	>	checkIncomplete(h1);
1949	>	checkIncomplete(h2);
1950	>	assertTrue(complete2.call());
1951	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1952	>
1953	>	checkCompletedWithWrappedException(h1, ex);
1954	>	checkCompletedWithWrappedException(h2, ex);
1955	>	checkCompletedWithWrappedException(h3, ex);
1956	>	r1.assertNotInvoked();
1957	>	r2.assertNotInvoked();
1958	>	r3.assertNotInvoked();
1959	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1960	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
1961	>	}}
1962
1963		/**
1964	<	* thenAcceptBoth result completes exceptionally if action does
1964	>	* thenAcceptBoth result completes exceptionally if either source cancelled
1965		*/
1966	<	public void testThenAcceptBoth3() {
1967	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1968	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1969	<	FailingBiConsumer r = new FailingBiConsumer();
1970	<	CompletableFuture<Void> g = f.thenAcceptBoth(f2, r);
1971	<	f.complete(one);
1972	<	checkIncomplete(g);
1973	<	f2.complete(two);
1974	<	checkCompletedWithWrappedCFException(g);
1975	<	}
1966	>	public void testThenAcceptBoth_sourceCancelled() throws Throwable {
1967	>	for (ExecutionMode m : ExecutionMode.values())
1968	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1969	>	for (boolean fFirst : new boolean[] { true, false })
1970	>	for (boolean failFirst : new boolean[] { true, false })
1971	>	for (Integer v1 : new Integer[] { 1, null })
1972	>	{
1973	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1974	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1975	>	final SubtractAction r1 = new SubtractAction(m);
1976	>	final SubtractAction r2 = new SubtractAction(m);
1977	>	final SubtractAction r3 = new SubtractAction(m);
1978	>
1979	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1980	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1981	>	final Callable<Boolean> complete1 = failFirst ?
1982	>	() -> fst.cancel(mayInterruptIfRunning) :
1983	>	() -> fst.complete(v1);
1984	>	final Callable<Boolean> complete2 = failFirst ?
1985	>	() -> snd.complete(v1) :
1986	>	() -> snd.cancel(mayInterruptIfRunning);
1987	>
1988	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1989	>	assertTrue(complete1.call());
1990	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1991	>	checkIncomplete(h1);
1992	>	checkIncomplete(h2);
1993	>	assertTrue(complete2.call());
1994	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1995	>
1996	>	checkCompletedWithWrappedCancellationException(h1);
1997	>	checkCompletedWithWrappedCancellationException(h2);
1998	>	checkCompletedWithWrappedCancellationException(h3);
1999	>	r1.assertNotInvoked();
2000	>	r2.assertNotInvoked();
2001	>	r3.assertNotInvoked();
2002	>	checkCompletedNormally(failFirst ? snd : fst, v1);
2003	>	checkCancelled(failFirst ? fst : snd);
2004	>	}}
2005
2006		/**
2007	<	* thenAcceptBoth result completes exceptionally if either source cancelled
2007	>	* thenAcceptBoth result completes exceptionally if action does
2008		*/
2009	<	public void testThenAcceptBoth4() {
2010	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2011	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2012	<	AddAction r = new AddAction();
2013	<	CompletableFuture<Void> g = f.thenAcceptBoth(f2, r);
2014	<	assertTrue(f.cancel(true));
2015	<	f2.complete(two);
2016	<	checkCompletedWithWrappedCancellationException(g);
2017	<	f = new CompletableFuture<Integer>();
2018	<	f2 = new CompletableFuture<Integer>();
2019	<	r = new AddAction();
2020	<	g = f.thenAcceptBoth(f2, r);
2021	<	f.complete(one);
2022	<	assertTrue(f2.cancel(true));
2023	<	checkCompletedWithWrappedCancellationException(g);
2024	<	}
2009	>	public void testThenAcceptBoth_actionFailed() {
2010	>	for (ExecutionMode m : ExecutionMode.values())
2011	>	for (boolean fFirst : new boolean[] { true, false })
2012	>	for (Integer v1 : new Integer[] { 1, null })
2013	>	for (Integer v2 : new Integer[] { 2, null })
2014	>	{
2015	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2016	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2017	>	final FailingBiConsumer r1 = new FailingBiConsumer(m);
2018	>	final FailingBiConsumer r2 = new FailingBiConsumer(m);
2019	>	final FailingBiConsumer r3 = new FailingBiConsumer(m);
2020	>
2021	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2022	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2023	>	final Integer w1 =  fFirst ? v1 : v2;
2024	>	final Integer w2 = !fFirst ? v1 : v2;
2025	>
2026	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
2027	>	assertTrue(fst.complete(w1));
2028	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
2029	>	assertTrue(snd.complete(w2));
2030	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
2031	>
2032	>	checkCompletedWithWrappedException(h1, r1.ex);
2033	>	checkCompletedWithWrappedException(h2, r2.ex);
2034	>	checkCompletedWithWrappedException(h3, r3.ex);
2035	>	r1.assertInvoked();
2036	>	r2.assertInvoked();
2037	>	r3.assertInvoked();
2038	>	checkCompletedNormally(f, v1);
2039	>	checkCompletedNormally(g, v2);
2040	>	}}
2041
2042		/**
2043		* runAfterBoth result completes normally after normal
2044		* completion of sources
2045		*/
2046	<	public void testRunAfterBoth() {
2047	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2048	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2049	<	Noop r = new Noop();
2050	<	CompletableFuture<Void> g = f.runAfterBoth(f2, r);
2051	<	f.complete(one);
2052	<	checkIncomplete(g);
2053	<	f2.complete(two);
2054	<	checkCompletedNormally(g, null);
2055	<	assertTrue(r.ran);
2056	<
2057	<	r = new Noop();
2058	<	f = new CompletableFuture<Integer>();
2059	<	f.complete(one);
2060	<	f2 = new CompletableFuture<Integer>();
2061	<	g = f.runAfterBoth(f2, r);
2062	<	checkIncomplete(g);
2063	<	f2.complete(two);
2064	<	checkCompletedNormally(g, null);
2065	<	assertTrue(r.ran);
2066	<	}
2046	>	public void testRunAfterBoth_normalCompletion() {
2047	>	for (ExecutionMode m : ExecutionMode.values())
2048	>	for (boolean fFirst : new boolean[] { true, false })
2049	>	for (Integer v1 : new Integer[] { 1, null })
2050	>	for (Integer v2 : new Integer[] { 2, null })
2051	>	{
2052	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2053	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2054	>	final Noop r1 = new Noop(m);
2055	>	final Noop r2 = new Noop(m);
2056	>	final Noop r3 = new Noop(m);
2057	>
2058	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2059	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2060	>	final Integer w1 =  fFirst ? v1 : v2;
2061	>	final Integer w2 = !fFirst ? v1 : v2;
2062	>
2063	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2064	>	assertTrue(fst.complete(w1));
2065	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2066	>	checkIncomplete(h1);
2067	>	checkIncomplete(h2);
2068	>	r1.assertNotInvoked();
2069	>	r2.assertNotInvoked();
2070	>	assertTrue(snd.complete(w2));
2071	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2072	>
2073	>	checkCompletedNormally(h1, null);
2074	>	checkCompletedNormally(h2, null);
2075	>	checkCompletedNormally(h3, null);
2076	>	r1.assertInvoked();
2077	>	r2.assertInvoked();
2078	>	r3.assertInvoked();
2079	>	checkCompletedNormally(f, v1);
2080	>	checkCompletedNormally(g, v2);
2081	>	}}
2082
2083		/**
2084		* runAfterBoth result completes exceptionally after exceptional
2085		* completion of either source
2086		*/
2087	<	public void testRunAfterBoth2() {
2088	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2089	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2090	<	Noop r = new Noop();
2091	<	CompletableFuture<Void> g = f.runAfterBoth(f2, r);
2092	<	f.completeExceptionally(new CFException());
2093	<	f2.complete(two);
2094	<	checkCompletedWithWrappedCFException(g);
2095	<
2096	<	r = new Noop();
2097	<	f = new CompletableFuture<Integer>();
2098	<	f.complete(one);
2099	<	f2 = new CompletableFuture<Integer>();
2100	<	g = f.runAfterBoth(f2, r);
2101	<	f2.completeExceptionally(new CFException());
2102	<	checkCompletedWithWrappedCFException(g);
2103	<	}
2087	>	public void testRunAfterBoth_exceptionalCompletion() throws Throwable {
2088	>	for (ExecutionMode m : ExecutionMode.values())
2089	>	for (boolean fFirst : new boolean[] { true, false })
2090	>	for (boolean failFirst : new boolean[] { true, false })
2091	>	for (Integer v1 : new Integer[] { 1, null })
2092	>	{
2093	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2094	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2095	>	final CFException ex = new CFException();
2096	>	final Noop r1 = new Noop(m);
2097	>	final Noop r2 = new Noop(m);
2098	>	final Noop r3 = new Noop(m);
2099	>
2100	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2101	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2102	>	final Callable<Boolean> complete1 = failFirst ?
2103	>	() -> fst.completeExceptionally(ex) :
2104	>	() -> fst.complete(v1);
2105	>	final Callable<Boolean> complete2 = failFirst ?
2106	>	() -> snd.complete(v1) :
2107	>	() -> snd.completeExceptionally(ex);
2108	>
2109	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2110	>	assertTrue(complete1.call());
2111	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2112	>	checkIncomplete(h1);
2113	>	checkIncomplete(h2);
2114	>	assertTrue(complete2.call());
2115	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2116	>
2117	>	checkCompletedWithWrappedException(h1, ex);
2118	>	checkCompletedWithWrappedException(h2, ex);
2119	>	checkCompletedWithWrappedException(h3, ex);
2120	>	r1.assertNotInvoked();
2121	>	r2.assertNotInvoked();
2122	>	r3.assertNotInvoked();
2123	>	checkCompletedNormally(failFirst ? snd : fst, v1);
2124	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
2125	>	}}
2126
2127		/**
2128	<	* runAfterBoth result completes exceptionally if action does
2128	>	* runAfterBoth result completes exceptionally if either source cancelled
2129		*/
2130	<	public void testRunAfterBoth3() {
2131	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2132	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2133	<	FailingNoop r = new FailingNoop();
2134	<	CompletableFuture<Void> g = f.runAfterBoth(f2, r);
2135	<	f.complete(one);
2136	<	checkIncomplete(g);
2137	<	f2.complete(two);
2138	<	checkCompletedWithWrappedCFException(g);
2139	<	}
2130	>	public void testRunAfterBoth_sourceCancelled() throws Throwable {
2131	>	for (ExecutionMode m : ExecutionMode.values())
2132	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2133	>	for (boolean fFirst : new boolean[] { true, false })
2134	>	for (boolean failFirst : new boolean[] { true, false })
2135	>	for (Integer v1 : new Integer[] { 1, null })
2136	>	{
2137	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2138	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2139	>	final Noop r1 = new Noop(m);
2140	>	final Noop r2 = new Noop(m);
2141	>	final Noop r3 = new Noop(m);
2142	>
2143	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2144	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2145	>	final Callable<Boolean> complete1 = failFirst ?
2146	>	() -> fst.cancel(mayInterruptIfRunning) :
2147	>	() -> fst.complete(v1);
2148	>	final Callable<Boolean> complete2 = failFirst ?
2149	>	() -> snd.complete(v1) :
2150	>	() -> snd.cancel(mayInterruptIfRunning);
2151	>
2152	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2153	>	assertTrue(complete1.call());
2154	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2155	>	checkIncomplete(h1);
2156	>	checkIncomplete(h2);
2157	>	assertTrue(complete2.call());
2158	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2159	>
2160	>	checkCompletedWithWrappedCancellationException(h1);
2161	>	checkCompletedWithWrappedCancellationException(h2);
2162	>	checkCompletedWithWrappedCancellationException(h3);
2163	>	r1.assertNotInvoked();
2164	>	r2.assertNotInvoked();
2165	>	r3.assertNotInvoked();
2166	>	checkCompletedNormally(failFirst ? snd : fst, v1);
2167	>	checkCancelled(failFirst ? fst : snd);
2168	>	}}
2169
2170		/**
2171	<	* runAfterBoth result completes exceptionally if either source cancelled
2171	>	* runAfterBoth result completes exceptionally if action does
2172		*/
2173	<	public void testRunAfterBoth4() {
2174	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2175	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2176	<	Noop r = new Noop();
2177	<	CompletableFuture<Void> g = f.runAfterBoth(f2, r);
2178	<	assertTrue(f.cancel(true));
2179	<	f2.complete(two);
2180	<	checkCompletedWithWrappedCancellationException(g);
2181	<	f = new CompletableFuture<Integer>();
2182	<	f2 = new CompletableFuture<Integer>();
2183	<	r = new Noop();
2184	<	g = f.runAfterBoth(f2, r);
2185	<	f.complete(one);
2186	<	assertTrue(f2.cancel(true));
2187	<	checkCompletedWithWrappedCancellationException(g);
2188	<	}
2173	>	public void testRunAfterBoth_actionFailed() {
2174	>	for (ExecutionMode m : ExecutionMode.values())
2175	>	for (boolean fFirst : new boolean[] { true, false })
2176	>	for (Integer v1 : new Integer[] { 1, null })
2177	>	for (Integer v2 : new Integer[] { 2, null })
2178	>	{
2179	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2180	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2181	>	final FailingRunnable r1 = new FailingRunnable(m);
2182	>	final FailingRunnable r2 = new FailingRunnable(m);
2183	>	final FailingRunnable r3 = new FailingRunnable(m);
2184	>
2185	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2186	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2187	>	final Integer w1 =  fFirst ? v1 : v2;
2188	>	final Integer w2 = !fFirst ? v1 : v2;
2189	>
2190	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2191	>	assertTrue(fst.complete(w1));
2192	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2193	>	assertTrue(snd.complete(w2));
2194	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2195	>
2196	>	checkCompletedWithWrappedException(h1, r1.ex);
2197	>	checkCompletedWithWrappedException(h2, r2.ex);
2198	>	checkCompletedWithWrappedException(h3, r3.ex);
2199	>	r1.assertInvoked();
2200	>	r2.assertInvoked();
2201	>	r3.assertInvoked();
2202	>	checkCompletedNormally(f, v1);
2203	>	checkCompletedNormally(g, v2);
2204	>	}}
2205
2206		/**
2207		* applyToEither result completes normally after normal completion
2208		* of either source
2209		*/
2210	<	public void testApplyToEither() {
2211	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2212	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2213	<	CompletableFuture<Integer> g = f.applyToEither(f2, inc);
2214	<	f.complete(one);
2215	<	checkCompletedNormally(g, two);
2216	<	f2.complete(one);
2217	<	checkCompletedNormally(g, two);
2218	<
2219	<	f = new CompletableFuture<Integer>();
2220	<	f.complete(one);
2221	<	f2 = new CompletableFuture<Integer>();
2222	<	g = f.applyToEither(f2, inc);
2223	<	checkCompletedNormally(g, two);
2224	<	}
2210	>	public void testApplyToEither_normalCompletion() {
2211	>	for (ExecutionMode m : ExecutionMode.values())
2212	>	for (Integer v1 : new Integer[] { 1, null })
2213	>	for (Integer v2 : new Integer[] { 2, null })
2214	>	{
2215	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2216	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2217	>	final IncFunction[] rs = new IncFunction[6];
2218	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2219	>
2220	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2221	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2222	>	checkIncomplete(h0);
2223	>	checkIncomplete(h1);
2224	>	rs[0].assertNotInvoked();
2225	>	rs[1].assertNotInvoked();
2226	>	f.complete(v1);
2227	>	checkCompletedNormally(h0, inc(v1));
2228	>	checkCompletedNormally(h1, inc(v1));
2229	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2230	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2231	>	checkCompletedNormally(h2, inc(v1));
2232	>	checkCompletedNormally(h3, inc(v1));
2233	>	g.complete(v2);
2234	>
2235	>	// unspecified behavior - both source completions available
2236	>	final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2237	>	final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2238	>	rs[4].assertValue(h4.join());
2239	>	rs[5].assertValue(h5.join());
2240	>	assertTrue(Objects.equals(inc(v1), h4.join()) ||
2241	>	Objects.equals(inc(v2), h4.join()));
2242	>	assertTrue(Objects.equals(inc(v1), h5.join()) ||
2243	>	Objects.equals(inc(v2), h5.join()));
2244	>
2245	>	checkCompletedNormally(f, v1);
2246	>	checkCompletedNormally(g, v2);
2247	>	checkCompletedNormally(h0, inc(v1));
2248	>	checkCompletedNormally(h1, inc(v1));
2249	>	checkCompletedNormally(h2, inc(v1));
2250	>	checkCompletedNormally(h3, inc(v1));
2251	>	for (int i = 0; i < 4; i++) rs[i].assertValue(inc(v1));
2252	>	}}
2253
2254		/**
2255		* applyToEither result completes exceptionally after exceptional
2256		* completion of either source
2257		*/
2258	<	public void testApplyToEither2() {
2259	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2260	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2261	<	CompletableFuture<Integer> g = f.applyToEither(f2, inc);
2262	<	f.completeExceptionally(new CFException());
2263	<	f2.complete(one);
2264	<	checkCompletedWithWrappedCFException(g);
2258	>	public void testApplyToEither_exceptionalCompletion() {
2259	>	for (ExecutionMode m : ExecutionMode.values())
2260	>	for (Integer v1 : new Integer[] { 1, null })
2261	>	{
2262	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2263	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2264	>	final CFException ex = new CFException();
2265	>	final IncFunction[] rs = new IncFunction[6];
2266	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2267	>
2268	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2269	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2270	>	checkIncomplete(h0);
2271	>	checkIncomplete(h1);
2272	>	rs[0].assertNotInvoked();
2273	>	rs[1].assertNotInvoked();
2274	>	f.completeExceptionally(ex);
2275	>	checkCompletedWithWrappedException(h0, ex);
2276	>	checkCompletedWithWrappedException(h1, ex);
2277	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2278	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2279	>	checkCompletedWithWrappedException(h2, ex);
2280	>	checkCompletedWithWrappedException(h3, ex);
2281	>	g.complete(v1);
2282	>
2283	>	// unspecified behavior - both source completions available
2284	>	final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2285	>	final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2286	>	try {
2287	>	assertEquals(inc(v1), h4.join());
2288	>	rs[4].assertValue(inc(v1));
2289	>	} catch (CompletionException ok) {
2290	>	checkCompletedWithWrappedException(h4, ex);
2291	>	rs[4].assertNotInvoked();
2292	>	}
2293	>	try {
2294	>	assertEquals(inc(v1), h5.join());
2295	>	rs[5].assertValue(inc(v1));
2296	>	} catch (CompletionException ok) {
2297	>	checkCompletedWithWrappedException(h5, ex);
2298	>	rs[5].assertNotInvoked();
2299	>	}
2300
2301	<	f = new CompletableFuture<Integer>();
2302	<	f2 = new CompletableFuture<Integer>();
2303	<	f2.completeExceptionally(new CFException());
2304	<	g = f.applyToEither(f2, inc);
2305	<	checkCompletedWithWrappedCFException(g);
2306	<	}
2301	>	checkCompletedExceptionally(f, ex);
2302	>	checkCompletedNormally(g, v1);
2303	>	checkCompletedWithWrappedException(h0, ex);
2304	>	checkCompletedWithWrappedException(h1, ex);
2305	>	checkCompletedWithWrappedException(h2, ex);
2306	>	checkCompletedWithWrappedException(h3, ex);
2307	>	checkCompletedWithWrappedException(h4, ex);
2308	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2309	>	}}
2310	>
2311	>	public void testApplyToEither_exceptionalCompletion2() {
2312	>	for (ExecutionMode m : ExecutionMode.values())
2313	>	for (boolean fFirst : new boolean[] { true, false })
2314	>	for (Integer v1 : new Integer[] { 1, null })
2315	>	{
2316	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2317	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2318	>	final CFException ex = new CFException();
2319	>	final IncFunction[] rs = new IncFunction[6];
2320	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2321	>
2322	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2323	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2324	>	assertTrue(fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2325	>	assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2326	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2327	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2328	>
2329	>	// unspecified behavior - both source completions available
2330	>	try {
2331	>	assertEquals(inc(v1), h0.join());
2332	>	rs[0].assertValue(inc(v1));
2333	>	} catch (CompletionException ok) {
2334	>	checkCompletedWithWrappedException(h0, ex);
2335	>	rs[0].assertNotInvoked();
2336	>	}
2337	>	try {
2338	>	assertEquals(inc(v1), h1.join());
2339	>	rs[1].assertValue(inc(v1));
2340	>	} catch (CompletionException ok) {
2341	>	checkCompletedWithWrappedException(h1, ex);
2342	>	rs[1].assertNotInvoked();
2343	>	}
2344	>	try {
2345	>	assertEquals(inc(v1), h2.join());
2346	>	rs[2].assertValue(inc(v1));
2347	>	} catch (CompletionException ok) {
2348	>	checkCompletedWithWrappedException(h2, ex);
2349	>	rs[2].assertNotInvoked();
2350	>	}
2351	>	try {
2352	>	assertEquals(inc(v1), h3.join());
2353	>	rs[3].assertValue(inc(v1));
2354	>	} catch (CompletionException ok) {
2355	>	checkCompletedWithWrappedException(h3, ex);
2356	>	rs[3].assertNotInvoked();
2357	>	}
2358	>
2359	>	checkCompletedNormally(f, v1);
2360	>	checkCompletedExceptionally(g, ex);
2361	>	}}
2362
2363		/**
2364	<	* applyToEither result completes exceptionally if action does
2364	>	* applyToEither result completes exceptionally if either source cancelled
2365		*/
2366	<	public void testApplyToEither3() {
2367	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2368	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2369	<	FailingFunction r = new FailingFunction();
2370	<	CompletableFuture<Integer> g = f.applyToEither(f2, r);
2371	<	f2.complete(two);
2372	<	checkCompletedWithWrappedCFException(g);
2373	<	}
2366	>	public void testApplyToEither_sourceCancelled() {
2367	>	for (ExecutionMode m : ExecutionMode.values())
2368	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2369	>	for (Integer v1 : new Integer[] { 1, null })
2370	>	{
2371	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2372	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2373	>	final IncFunction[] rs = new IncFunction[6];
2374	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2375	>
2376	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2377	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2378	>	checkIncomplete(h0);
2379	>	checkIncomplete(h1);
2380	>	rs[0].assertNotInvoked();
2381	>	rs[1].assertNotInvoked();
2382	>	f.cancel(mayInterruptIfRunning);
2383	>	checkCompletedWithWrappedCancellationException(h0);
2384	>	checkCompletedWithWrappedCancellationException(h1);
2385	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2386	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2387	>	checkCompletedWithWrappedCancellationException(h2);
2388	>	checkCompletedWithWrappedCancellationException(h3);
2389	>	g.complete(v1);
2390	>
2391	>	// unspecified behavior - both source completions available
2392	>	final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2393	>	final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2394	>	try {
2395	>	assertEquals(inc(v1), h4.join());
2396	>	rs[4].assertValue(inc(v1));
2397	>	} catch (CompletionException ok) {
2398	>	checkCompletedWithWrappedCancellationException(h4);
2399	>	rs[4].assertNotInvoked();
2400	>	}
2401	>	try {
2402	>	assertEquals(inc(v1), h5.join());
2403	>	rs[5].assertValue(inc(v1));
2404	>	} catch (CompletionException ok) {
2405	>	checkCompletedWithWrappedCancellationException(h5);
2406	>	rs[5].assertNotInvoked();
2407	>	}
2408	>
2409	>	checkCancelled(f);
2410	>	checkCompletedNormally(g, v1);
2411	>	checkCompletedWithWrappedCancellationException(h0);
2412	>	checkCompletedWithWrappedCancellationException(h1);
2413	>	checkCompletedWithWrappedCancellationException(h2);
2414	>	checkCompletedWithWrappedCancellationException(h3);
2415	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2416	>	}}
2417	>
2418	>	public void testApplyToEither_sourceCancelled2() {
2419	>	for (ExecutionMode m : ExecutionMode.values())
2420	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2421	>	for (boolean fFirst : new boolean[] { true, false })
2422	>	for (Integer v1 : new Integer[] { 1, null })
2423	>	{
2424	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2425	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2426	>	final IncFunction[] rs = new IncFunction[6];
2427	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2428	>
2429	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2430	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2431	>	assertTrue(fFirst ? f.complete(v1) : g.cancel(mayInterruptIfRunning));
2432	>	assertTrue(!fFirst ? f.complete(v1) : g.cancel(mayInterruptIfRunning));
2433	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2434	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2435	>
2436	>	// unspecified behavior - both source completions available
2437	>	try {
2438	>	assertEquals(inc(v1), h0.join());
2439	>	rs[0].assertValue(inc(v1));
2440	>	} catch (CompletionException ok) {
2441	>	checkCompletedWithWrappedCancellationException(h0);
2442	>	rs[0].assertNotInvoked();
2443	>	}
2444	>	try {
2445	>	assertEquals(inc(v1), h1.join());
2446	>	rs[1].assertValue(inc(v1));
2447	>	} catch (CompletionException ok) {
2448	>	checkCompletedWithWrappedCancellationException(h1);
2449	>	rs[1].assertNotInvoked();
2450	>	}
2451	>	try {
2452	>	assertEquals(inc(v1), h2.join());
2453	>	rs[2].assertValue(inc(v1));
2454	>	} catch (CompletionException ok) {
2455	>	checkCompletedWithWrappedCancellationException(h2);
2456	>	rs[2].assertNotInvoked();
2457	>	}
2458	>	try {
2459	>	assertEquals(inc(v1), h3.join());
2460	>	rs[3].assertValue(inc(v1));
2461	>	} catch (CompletionException ok) {
2462	>	checkCompletedWithWrappedCancellationException(h3);
2463	>	rs[3].assertNotInvoked();
2464	>	}
2465	>
2466	>	checkCompletedNormally(f, v1);
2467	>	checkCancelled(g);
2468	>	}}
2469
2470		/**
2471	<	* applyToEither result completes exceptionally if either source cancelled
2471	>	* applyToEither result completes exceptionally if action does
2472		*/
2473	<	public void testApplyToEither4() {
2474	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2475	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2476	<	CompletableFuture<Integer> g = f.applyToEither(f2, inc);
2477	<	assertTrue(f.cancel(true));
2478	<	checkCompletedWithWrappedCancellationException(g);
2479	<	f = new CompletableFuture<Integer>();
2480	<	f2 = new CompletableFuture<Integer>();
2481	<	assertTrue(f2.cancel(true));
2482	<	checkCompletedWithWrappedCancellationException(g);
2483	<	}
2473	>	public void testApplyToEither_actionFailed() {
2474	>	for (ExecutionMode m : ExecutionMode.values())
2475	>	for (Integer v1 : new Integer[] { 1, null })
2476	>	for (Integer v2 : new Integer[] { 2, null })
2477	>	{
2478	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2479	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2480	>	final FailingFunction[] rs = new FailingFunction[6];
2481	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingFunction(m);
2482	>
2483	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2484	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2485	>	f.complete(v1);
2486	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2487	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2488	>	checkCompletedWithWrappedException(h0, rs[0].ex);
2489	>	checkCompletedWithWrappedException(h1, rs[1].ex);
2490	>	checkCompletedWithWrappedException(h2, rs[2].ex);
2491	>	checkCompletedWithWrappedException(h3, rs[3].ex);
2492	>	for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2493	>
2494	>	g.complete(v2);
2495	>
2496	>	// unspecified behavior - both source completions available
2497	>	final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2498	>	final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2499	>
2500	>	checkCompletedWithWrappedException(h4, rs[4].ex);
2501	>	assertTrue(Objects.equals(v1, rs[4].value) ||
2502	>	Objects.equals(v2, rs[4].value));
2503	>	checkCompletedWithWrappedException(h5, rs[5].ex);
2504	>	assertTrue(Objects.equals(v1, rs[5].value) ||
2505	>	Objects.equals(v2, rs[5].value));
2506	>
2507	>	checkCompletedNormally(f, v1);
2508	>	checkCompletedNormally(g, v2);
2509	>	}}
2510
2511		/**
2512		* acceptEither result completes normally after normal completion
2513		* of either source
2514		*/
2515	<	public void testAcceptEither() {
2516	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2517	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2518	<	IncAction r = new IncAction();
2519	<	CompletableFuture<Void> g = f.acceptEither(f2, r);
2520	<	f.complete(one);
2521	<	checkCompletedNormally(g, null);
2522	<	f2.complete(one);
2523	<	checkCompletedNormally(g, null);
2524	<	assertEquals(r.value, 2);
2525	<
2526	<	r = new IncAction();
2527	<	f = new CompletableFuture<Integer>();
2528	<	f.complete(one);
2529	<	f2 = new CompletableFuture<Integer>();
2530	<	g = f.acceptEither(f2, r);
2531	<	checkCompletedNormally(g, null);
2532	<	assertEquals(r.value, 2);
2533	<	}
2515	>	public void testAcceptEither_normalCompletion() {
2516	>	for (ExecutionMode m : ExecutionMode.values())
2517	>	for (Integer v1 : new Integer[] { 1, null })
2518	>	for (Integer v2 : new Integer[] { 2, null })
2519	>	{
2520	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2521	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2522	>	final NoopConsumer[] rs = new NoopConsumer[6];
2523	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2524	>
2525	>	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2526	>	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2527	>	checkIncomplete(h0);
2528	>	checkIncomplete(h1);
2529	>	rs[0].assertNotInvoked();
2530	>	rs[1].assertNotInvoked();
2531	>	f.complete(v1);
2532	>	checkCompletedNormally(h0, null);
2533	>	checkCompletedNormally(h1, null);
2534	>	rs[0].assertValue(v1);
2535	>	rs[1].assertValue(v1);
2536	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2537	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2538	>	checkCompletedNormally(h2, null);
2539	>	checkCompletedNormally(h3, null);
2540	>	rs[2].assertValue(v1);
2541	>	rs[3].assertValue(v1);
2542	>	g.complete(v2);
2543	>
2544	>	// unspecified behavior - both source completions available
2545	>	final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2546	>	final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2547	>	checkCompletedNormally(h4, null);
2548	>	checkCompletedNormally(h5, null);
2549	>	assertTrue(Objects.equals(v1, rs[4].value) ||
2550	>	Objects.equals(v2, rs[4].value));
2551	>	assertTrue(Objects.equals(v1, rs[5].value) ||
2552	>	Objects.equals(v2, rs[5].value));
2553	>
2554	>	checkCompletedNormally(f, v1);
2555	>	checkCompletedNormally(g, v2);
2556	>	checkCompletedNormally(h0, null);
2557	>	checkCompletedNormally(h1, null);
2558	>	checkCompletedNormally(h2, null);
2559	>	checkCompletedNormally(h3, null);
2560	>	for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2561	>	}}
2562
2563		/**
2564		* acceptEither result completes exceptionally after exceptional
2565		* completion of either source
2566		*/
2567	<	public void testAcceptEither2() {
2568	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2569	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2570	<	IncAction r = new IncAction();
2571	<	CompletableFuture<Void> g = f.acceptEither(f2, r);
2572	<	f.completeExceptionally(new CFException());
2573	<	f2.complete(one);
2574	<	checkCompletedWithWrappedCFException(g);
2567	>	public void testAcceptEither_exceptionalCompletion() {
2568	>	for (ExecutionMode m : ExecutionMode.values())
2569	>	for (Integer v1 : new Integer[] { 1, null })
2570	>	{
2571	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2572	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2573	>	final CFException ex = new CFException();
2574	>	final NoopConsumer[] rs = new NoopConsumer[6];
2575	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2576	>
2577	>	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2578	>	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2579	>	checkIncomplete(h0);
2580	>	checkIncomplete(h1);
2581	>	rs[0].assertNotInvoked();
2582	>	rs[1].assertNotInvoked();
2583	>	f.completeExceptionally(ex);
2584	>	checkCompletedWithWrappedException(h0, ex);
2585	>	checkCompletedWithWrappedException(h1, ex);
2586	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2587	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2588	>	checkCompletedWithWrappedException(h2, ex);
2589	>	checkCompletedWithWrappedException(h3, ex);
2590	>
2591	>	g.complete(v1);
2592	>
2593	>	// unspecified behavior - both source completions available
2594	>	final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2595	>	final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2596	>	try {
2597	>	assertNull(h4.join());
2598	>	rs[4].assertValue(v1);
2599	>	} catch (CompletionException ok) {
2600	>	checkCompletedWithWrappedException(h4, ex);
2601	>	rs[4].assertNotInvoked();
2602	>	}
2603	>	try {
2604	>	assertNull(h5.join());
2605	>	rs[5].assertValue(v1);
2606	>	} catch (CompletionException ok) {
2607	>	checkCompletedWithWrappedException(h5, ex);
2608	>	rs[5].assertNotInvoked();
2609	>	}
2610
2611	<	r = new IncAction();
2612	<	f = new CompletableFuture<Integer>();
2613	<	f2 = new CompletableFuture<Integer>();
2614	<	f2.completeExceptionally(new CFException());
2615	<	g = f.acceptEither(f2, r);
2616	<	checkCompletedWithWrappedCFException(g);
2617	<	}
2611	>	checkCompletedExceptionally(f, ex);
2612	>	checkCompletedNormally(g, v1);
2613	>	checkCompletedWithWrappedException(h0, ex);
2614	>	checkCompletedWithWrappedException(h1, ex);
2615	>	checkCompletedWithWrappedException(h2, ex);
2616	>	checkCompletedWithWrappedException(h3, ex);
2617	>	checkCompletedWithWrappedException(h4, ex);
2618	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2619	>	}}
2620	>
2621	>	public void testAcceptEither_exceptionalCompletion2() {
2622	>	for (ExecutionMode m : ExecutionMode.values())
2623	>	for (boolean fFirst : new boolean[] { true, false })
2624	>	for (Integer v1 : new Integer[] { 1, null })
2625	>	{
2626	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2627	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2628	>	final CFException ex = new CFException();
2629	>	final NoopConsumer[] rs = new NoopConsumer[6];
2630	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2631	>
2632	>	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2633	>	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2634	>	assertTrue(fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2635	>	assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2636	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2637	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2638
2639	<	/**
2640	<	* acceptEither result completes exceptionally if action does
2641	<	*/
2642	<	public void testAcceptEither3() {
2643	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2644	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2645	<	FailingConsumer r = new FailingConsumer();
2646	<	CompletableFuture<Void> g = f.acceptEither(f2, r);
2647	<	f2.complete(two);
2648	<	checkCompletedWithWrappedCFException(g);
2649	<	}
2639	>	// unspecified behavior - both source completions available
2640	>	try {
2641	>	assertNull(h0.join());
2642	>	rs[0].assertValue(v1);
2643	>	} catch (CompletionException ok) {
2644	>	checkCompletedWithWrappedException(h0, ex);
2645	>	rs[0].assertNotInvoked();
2646	>	}
2647	>	try {
2648	>	assertNull(h1.join());
2649	>	rs[1].assertValue(v1);
2650	>	} catch (CompletionException ok) {
2651	>	checkCompletedWithWrappedException(h1, ex);
2652	>	rs[1].assertNotInvoked();
2653	>	}
2654	>	try {
2655	>	assertNull(h2.join());
2656	>	rs[2].assertValue(v1);
2657	>	} catch (CompletionException ok) {
2658	>	checkCompletedWithWrappedException(h2, ex);
2659	>	rs[2].assertNotInvoked();
2660	>	}
2661	>	try {
2662	>	assertNull(h3.join());
2663	>	rs[3].assertValue(v1);
2664	>	} catch (CompletionException ok) {
2665	>	checkCompletedWithWrappedException(h3, ex);
2666	>	rs[3].assertNotInvoked();
2667	>	}
2668	>
2669	>	checkCompletedNormally(f, v1);
2670	>	checkCompletedExceptionally(g, ex);
2671	>	}}
2672
2673		/**
2674		* acceptEither result completes exceptionally if either source cancelled
2675		*/
2676	<	public void testAcceptEither4() {
2677	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2678	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2679	<	IncAction r = new IncAction();
2680	<	CompletableFuture<Void> g = f.acceptEither(f2, r);
2681	<	assertTrue(f.cancel(true));
2682	<	checkCompletedWithWrappedCancellationException(g);
2683	<	f = new CompletableFuture<Integer>();
2684	<	f2 = new CompletableFuture<Integer>();
2685	<	assertTrue(f2.cancel(true));
2686	<	checkCompletedWithWrappedCancellationException(g);
2687	<	}
2676	>	public void testAcceptEither_sourceCancelled() {
2677	>	for (ExecutionMode m : ExecutionMode.values())
2678	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2679	>	for (Integer v1 : new Integer[] { 1, null })
2680	>	{
2681	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2682	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2683	>	final NoopConsumer[] rs = new NoopConsumer[6];
2684	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2685	>
2686	>	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2687	>	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2688	>	checkIncomplete(h0);
2689	>	checkIncomplete(h1);
2690	>	rs[0].assertNotInvoked();
2691	>	rs[1].assertNotInvoked();
2692	>	f.cancel(mayInterruptIfRunning);
2693	>	checkCompletedWithWrappedCancellationException(h0);
2694	>	checkCompletedWithWrappedCancellationException(h1);
2695	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2696	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2697	>	checkCompletedWithWrappedCancellationException(h2);
2698	>	checkCompletedWithWrappedCancellationException(h3);
2699	>
2700	>	g.complete(v1);
2701	>
2702	>	// unspecified behavior - both source completions available
2703	>	final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2704	>	final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2705	>	try {
2706	>	assertNull(h4.join());
2707	>	rs[4].assertValue(v1);
2708	>	} catch (CompletionException ok) {
2709	>	checkCompletedWithWrappedCancellationException(h4);
2710	>	rs[4].assertNotInvoked();
2711	>	}
2712	>	try {
2713	>	assertNull(h5.join());
2714	>	rs[5].assertValue(v1);
2715	>	} catch (CompletionException ok) {
2716	>	checkCompletedWithWrappedCancellationException(h5);
2717	>	rs[5].assertNotInvoked();
2718	>	}
2719
2720	+	checkCancelled(f);
2721	+	checkCompletedNormally(g, v1);
2722	+	checkCompletedWithWrappedCancellationException(h0);
2723	+	checkCompletedWithWrappedCancellationException(h1);
2724	+	checkCompletedWithWrappedCancellationException(h2);
2725	+	checkCompletedWithWrappedCancellationException(h3);
2726	+	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2727	+	}}
2728	+
2729	+	/**
2730	+	* acceptEither result completes exceptionally if action does
2731	+	*/
2732	+	public void testAcceptEither_actionFailed() {
2733	+	for (ExecutionMode m : ExecutionMode.values())
2734	+	for (Integer v1 : new Integer[] { 1, null })
2735	+	for (Integer v2 : new Integer[] { 2, null })
2736	+	{
2737	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
2738	+	final CompletableFuture<Integer> g = new CompletableFuture<>();
2739	+	final FailingConsumer[] rs = new FailingConsumer[6];
2740	+	for (int i = 0; i < rs.length; i++) rs[i] = new FailingConsumer(m);
2741	+
2742	+	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2743	+	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2744	+	f.complete(v1);
2745	+	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2746	+	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2747	+	checkCompletedWithWrappedException(h0, rs[0].ex);
2748	+	checkCompletedWithWrappedException(h1, rs[1].ex);
2749	+	checkCompletedWithWrappedException(h2, rs[2].ex);
2750	+	checkCompletedWithWrappedException(h3, rs[3].ex);
2751	+	for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2752	+
2753	+	g.complete(v2);
2754	+
2755	+	// unspecified behavior - both source completions available
2756	+	final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2757	+	final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2758	+
2759	+	checkCompletedWithWrappedException(h4, rs[4].ex);
2760	+	assertTrue(Objects.equals(v1, rs[4].value) ||
2761	+	Objects.equals(v2, rs[4].value));
2762	+	checkCompletedWithWrappedException(h5, rs[5].ex);
2763	+	assertTrue(Objects.equals(v1, rs[5].value) ||
2764	+	Objects.equals(v2, rs[5].value));
2765	+
2766	+	checkCompletedNormally(f, v1);
2767	+	checkCompletedNormally(g, v2);
2768	+	}}
2769
2770		/**
2771		* runAfterEither result completes normally after normal completion
2772		* of either source
2773		*/
2774	<	public void testRunAfterEither() {
2775	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2776	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2777	<	Noop r = new Noop();
2778	<	CompletableFuture<Void> g = f.runAfterEither(f2, r);
2779	<	f.complete(one);
2780	<	checkCompletedNormally(g, null);
2781	<	f2.complete(one);
2782	<	checkCompletedNormally(g, null);
2783	<	assertTrue(r.ran);
2784	<
2785	<	r = new Noop();
2786	<	f = new CompletableFuture<Integer>();
2787	<	f.complete(one);
2788	<	f2 = new CompletableFuture<Integer>();
2789	<	g = f.runAfterEither(f2, r);
2790	<	checkCompletedNormally(g, null);
2791	<	assertTrue(r.ran);
2792	<	}
2774	>	public void testRunAfterEither_normalCompletion() {
2775	>	for (ExecutionMode m : ExecutionMode.values())
2776	>	for (Integer v1 : new Integer[] { 1, null })
2777	>	for (Integer v2 : new Integer[] { 2, null })
2778	>	for (boolean pushNop : new boolean[] { true, false })
2779	>	{
2780	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2781	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2782	>	final Noop[] rs = new Noop[6];
2783	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2784	>
2785	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2786	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2787	>	checkIncomplete(h0);
2788	>	checkIncomplete(h1);
2789	>	rs[0].assertNotInvoked();
2790	>	rs[1].assertNotInvoked();
2791	>	if (pushNop) {          // ad hoc test of intra-completion interference
2792	>	m.thenRun(f, () -> {});
2793	>	m.thenRun(g, () -> {});
2794	>	}
2795	>	f.complete(v1);
2796	>	checkCompletedNormally(h0, null);
2797	>	checkCompletedNormally(h1, null);
2798	>	rs[0].assertInvoked();
2799	>	rs[1].assertInvoked();
2800	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2801	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2802	>	checkCompletedNormally(h2, null);
2803	>	checkCompletedNormally(h3, null);
2804	>	rs[2].assertInvoked();
2805	>	rs[3].assertInvoked();
2806	>
2807	>	g.complete(v2);
2808	>
2809	>	final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2810	>	final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2811	>
2812	>	checkCompletedNormally(f, v1);
2813	>	checkCompletedNormally(g, v2);
2814	>	checkCompletedNormally(h0, null);
2815	>	checkCompletedNormally(h1, null);
2816	>	checkCompletedNormally(h2, null);
2817	>	checkCompletedNormally(h3, null);
2818	>	checkCompletedNormally(h4, null);
2819	>	checkCompletedNormally(h5, null);
2820	>	for (int i = 0; i < 6; i++) rs[i].assertInvoked();
2821	>	}}
2822
2823		/**
2824		* runAfterEither result completes exceptionally after exceptional
2825		* completion of either source
2826		*/
2827	<	public void testRunAfterEither2() {
2828	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2829	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2830	<	Noop r = new Noop();
2831	<	CompletableFuture<Void> g = f.runAfterEither(f2, r);
2832	<	f.completeExceptionally(new CFException());
2833	<	f2.complete(one);
2834	<	checkCompletedWithWrappedCFException(g);
2827	>	public void testRunAfterEither_exceptionalCompletion() {
2828	>	for (ExecutionMode m : ExecutionMode.values())
2829	>	for (Integer v1 : new Integer[] { 1, null })
2830	>	{
2831	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2832	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2833	>	final CFException ex = new CFException();
2834	>	final Noop[] rs = new Noop[6];
2835	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2836	>
2837	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2838	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2839	>	checkIncomplete(h0);
2840	>	checkIncomplete(h1);
2841	>	rs[0].assertNotInvoked();
2842	>	rs[1].assertNotInvoked();
2843	>	assertTrue(f.completeExceptionally(ex));
2844	>	checkCompletedWithWrappedException(h0, ex);
2845	>	checkCompletedWithWrappedException(h1, ex);
2846	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2847	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2848	>	checkCompletedWithWrappedException(h2, ex);
2849	>	checkCompletedWithWrappedException(h3, ex);
2850	>
2851	>	assertTrue(g.complete(v1));
2852	>
2853	>	// unspecified behavior - both source completions available
2854	>	final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2855	>	final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2856	>	try {
2857	>	assertNull(h4.join());
2858	>	rs[4].assertInvoked();
2859	>	} catch (CompletionException ok) {
2860	>	checkCompletedWithWrappedException(h4, ex);
2861	>	rs[4].assertNotInvoked();
2862	>	}
2863	>	try {
2864	>	assertNull(h5.join());
2865	>	rs[5].assertInvoked();
2866	>	} catch (CompletionException ok) {
2867	>	checkCompletedWithWrappedException(h5, ex);
2868	>	rs[5].assertNotInvoked();
2869	>	}
2870
2871	<	r = new Noop();
2872	<	f = new CompletableFuture<Integer>();
2873	<	f2 = new CompletableFuture<Integer>();
2874	<	f2.completeExceptionally(new CFException());
2875	<	g = f.runAfterEither(f2, r);
2876	<	checkCompletedWithWrappedCFException(g);
2877	<	}
2871	>	checkCompletedExceptionally(f, ex);
2872	>	checkCompletedNormally(g, v1);
2873	>	checkCompletedWithWrappedException(h0, ex);
2874	>	checkCompletedWithWrappedException(h1, ex);
2875	>	checkCompletedWithWrappedException(h2, ex);
2876	>	checkCompletedWithWrappedException(h3, ex);
2877	>	checkCompletedWithWrappedException(h4, ex);
2878	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2879	>	}}
2880	>
2881	>	public void testRunAfterEither_exceptionalCompletion2() {
2882	>	for (ExecutionMode m : ExecutionMode.values())
2883	>	for (boolean fFirst : new boolean[] { true, false })
2884	>	for (Integer v1 : new Integer[] { 1, null })
2885	>	{
2886	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2887	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2888	>	final CFException ex = new CFException();
2889	>	final Noop[] rs = new Noop[6];
2890	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2891	>
2892	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2893	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2894	>	assertTrue( fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2895	>	assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2896	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2897	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2898	>
2899	>	// unspecified behavior - both source completions available
2900	>	try {
2901	>	assertNull(h0.join());
2902	>	rs[0].assertInvoked();
2903	>	} catch (CompletionException ok) {
2904	>	checkCompletedWithWrappedException(h0, ex);
2905	>	rs[0].assertNotInvoked();
2906	>	}
2907	>	try {
2908	>	assertNull(h1.join());
2909	>	rs[1].assertInvoked();
2910	>	} catch (CompletionException ok) {
2911	>	checkCompletedWithWrappedException(h1, ex);
2912	>	rs[1].assertNotInvoked();
2913	>	}
2914	>	try {
2915	>	assertNull(h2.join());
2916	>	rs[2].assertInvoked();
2917	>	} catch (CompletionException ok) {
2918	>	checkCompletedWithWrappedException(h2, ex);
2919	>	rs[2].assertNotInvoked();
2920	>	}
2921	>	try {
2922	>	assertNull(h3.join());
2923	>	rs[3].assertInvoked();
2924	>	} catch (CompletionException ok) {
2925	>	checkCompletedWithWrappedException(h3, ex);
2926	>	rs[3].assertNotInvoked();
2927	>	}
2928	>
2929	>	checkCompletedNormally(f, v1);
2930	>	checkCompletedExceptionally(g, ex);
2931	>	}}
2932
2933		/**
2934	<	* runAfterEither result completes exceptionally if action does
2934	>	* runAfterEither result completes exceptionally if either source cancelled
2935		*/
2936	<	public void testRunAfterEither3() {
2937	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2938	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2939	<	FailingNoop r = new FailingNoop();
2940	<	CompletableFuture<Void> g = f.runAfterEither(f2, r);
2941	<	f2.complete(two);
2942	<	checkCompletedWithWrappedCFException(g);
2943	<	}
2936	>	public void testRunAfterEither_sourceCancelled() {
2937	>	for (ExecutionMode m : ExecutionMode.values())
2938	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2939	>	for (Integer v1 : new Integer[] { 1, null })
2940	>	{
2941	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2942	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2943	>	final Noop[] rs = new Noop[6];
2944	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2945	>
2946	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2947	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2948	>	checkIncomplete(h0);
2949	>	checkIncomplete(h1);
2950	>	rs[0].assertNotInvoked();
2951	>	rs[1].assertNotInvoked();
2952	>	f.cancel(mayInterruptIfRunning);
2953	>	checkCompletedWithWrappedCancellationException(h0);
2954	>	checkCompletedWithWrappedCancellationException(h1);
2955	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2956	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2957	>	checkCompletedWithWrappedCancellationException(h2);
2958	>	checkCompletedWithWrappedCancellationException(h3);
2959	>
2960	>	assertTrue(g.complete(v1));
2961	>
2962	>	// unspecified behavior - both source completions available
2963	>	final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2964	>	final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2965	>	try {
2966	>	assertNull(h4.join());
2967	>	rs[4].assertInvoked();
2968	>	} catch (CompletionException ok) {
2969	>	checkCompletedWithWrappedCancellationException(h4);
2970	>	rs[4].assertNotInvoked();
2971	>	}
2972	>	try {
2973	>	assertNull(h5.join());
2974	>	rs[5].assertInvoked();
2975	>	} catch (CompletionException ok) {
2976	>	checkCompletedWithWrappedCancellationException(h5);
2977	>	rs[5].assertNotInvoked();
2978	>	}
2979	>
2980	>	checkCancelled(f);
2981	>	checkCompletedNormally(g, v1);
2982	>	checkCompletedWithWrappedCancellationException(h0);
2983	>	checkCompletedWithWrappedCancellationException(h1);
2984	>	checkCompletedWithWrappedCancellationException(h2);
2985	>	checkCompletedWithWrappedCancellationException(h3);
2986	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2987	>	}}
2988
2989		/**
2990	<	* runAfterEither result completes exceptionally if either source cancelled
2990	>	* runAfterEither result completes exceptionally if action does
2991		*/
2992	<	public void testRunAfterEither4() {
2993	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2994	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2995	<	Noop r = new Noop();
2996	<	CompletableFuture<Void> g = f.runAfterEither(f2, r);
2997	<	assertTrue(f.cancel(true));
2998	<	checkCompletedWithWrappedCancellationException(g);
2999	<	f = new CompletableFuture<Integer>();
3000	<	f2 = new CompletableFuture<Integer>();
3001	<	assertTrue(f2.cancel(true));
3002	<	checkCompletedWithWrappedCancellationException(g);
3003	<	}
2992	>	public void testRunAfterEither_actionFailed() {
2993	>	for (ExecutionMode m : ExecutionMode.values())
2994	>	for (Integer v1 : new Integer[] { 1, null })
2995	>	for (Integer v2 : new Integer[] { 2, null })
2996	>	{
2997	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2998	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2999	>	final FailingRunnable[] rs = new FailingRunnable[6];
3000	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingRunnable(m);
3001	>
3002	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
3003	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
3004	>	assertTrue(f.complete(v1));
3005	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
3006	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
3007	>	checkCompletedWithWrappedException(h0, rs[0].ex);
3008	>	checkCompletedWithWrappedException(h1, rs[1].ex);
3009	>	checkCompletedWithWrappedException(h2, rs[2].ex);
3010	>	checkCompletedWithWrappedException(h3, rs[3].ex);
3011	>	for (int i = 0; i < 4; i++) rs[i].assertInvoked();
3012	>	assertTrue(g.complete(v2));
3013	>	final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
3014	>	final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
3015	>	checkCompletedWithWrappedException(h4, rs[4].ex);
3016	>	checkCompletedWithWrappedException(h5, rs[5].ex);
3017	>
3018	>	checkCompletedNormally(f, v1);
3019	>	checkCompletedNormally(g, v2);
3020	>	for (int i = 0; i < 6; i++) rs[i].assertInvoked();
3021	>	}}
3022
3023		/**
3024		* thenCompose result completes normally after normal completion of source
3025		*/
3026	<	public void testThenCompose() {
3027	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3028	<	CompletableFutureInc r = new CompletableFutureInc();
3029	<	CompletableFuture<Integer> g = f.thenCompose(r);
3030	<	f.complete(one);
3031	<	checkCompletedNormally(g, two);
3032	<	}
3026	>	public void testThenCompose_normalCompletion() {
3027	>	for (ExecutionMode m : ExecutionMode.values())
3028	>	for (boolean createIncomplete : new boolean[] { true, false })
3029	>	for (Integer v1 : new Integer[] { 1, null })
3030	>	{
3031	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
3032	>	final CompletableFutureInc r = new CompletableFutureInc(m);
3033	>	if (!createIncomplete) assertTrue(f.complete(v1));
3034	>	final CompletableFuture<Integer> g = m.thenCompose(f, r);
3035	>	if (createIncomplete) assertTrue(f.complete(v1));
3036	>
3037	>	checkCompletedNormally(g, inc(v1));
3038	>	checkCompletedNormally(f, v1);
3039	>	r.assertValue(v1);
3040	>	}}
3041
3042		/**
3043		* thenCompose result completes exceptionally after exceptional
3044		* completion of source
3045		*/
3046	<	public void testThenCompose2() {
3047	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3048	<	CompletableFutureInc r = new CompletableFutureInc();
3049	<	CompletableFuture<Integer> g = f.thenCompose(r);
3050	<	f.completeExceptionally(new CFException());
3051	<	checkCompletedWithWrappedCFException(g);
3052	<	}
3046	>	public void testThenCompose_exceptionalCompletion() {
3047	>	for (ExecutionMode m : ExecutionMode.values())
3048	>	for (boolean createIncomplete : new boolean[] { true, false })
3049	>	{
3050	>	final CFException ex = new CFException();
3051	>	final CompletableFutureInc r = new CompletableFutureInc(m);
3052	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
3053	>	if (!createIncomplete) f.completeExceptionally(ex);
3054	>	final CompletableFuture<Integer> g = m.thenCompose(f, r);
3055	>	if (createIncomplete) f.completeExceptionally(ex);
3056	>
3057	>	checkCompletedWithWrappedException(g, ex);
3058	>	checkCompletedExceptionally(f, ex);
3059	>	r.assertNotInvoked();
3060	>	}}
3061
3062		/**
3063		* thenCompose result completes exceptionally if action does
3064		*/
3065	<	public void testThenCompose3() {
3066	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3067	<	FailingCompletableFutureFunction r = new FailingCompletableFutureFunction();
3068	<	CompletableFuture<Integer> g = f.thenCompose(r);
3069	<	f.complete(one);
3070	<	checkCompletedWithWrappedCFException(g);
3071	<	}
3065	>	public void testThenCompose_actionFailed() {
3066	>	for (ExecutionMode m : ExecutionMode.values())
3067	>	for (boolean createIncomplete : new boolean[] { true, false })
3068	>	for (Integer v1 : new Integer[] { 1, null })
3069	>	{
3070	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
3071	>	final FailingCompletableFutureFunction r
3072	>	= new FailingCompletableFutureFunction(m);
3073	>	if (!createIncomplete) assertTrue(f.complete(v1));
3074	>	final CompletableFuture<Integer> g = m.thenCompose(f, r);
3075	>	if (createIncomplete) assertTrue(f.complete(v1));
3076	>
3077	>	checkCompletedWithWrappedException(g, r.ex);
3078	>	checkCompletedNormally(f, v1);
3079	>	}}
3080
3081		/**
3082		* thenCompose result completes exceptionally if source cancelled
3083		*/
3084	<	public void testThenCompose4() {
3085	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3086	<	CompletableFutureInc r = new CompletableFutureInc();
3087	<	CompletableFuture<Integer> g = f.thenCompose(r);
3088	<	assertTrue(f.cancel(true));
3084	>	public void testThenCompose_sourceCancelled() {
3085	>	for (ExecutionMode m : ExecutionMode.values())
3086	>	for (boolean createIncomplete : new boolean[] { true, false })
3087	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3088	>	{
3089	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
3090	>	final CompletableFutureInc r = new CompletableFutureInc(m);
3091	>	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
3092	>	final CompletableFuture<Integer> g = m.thenCompose(f, r);
3093	>	if (createIncomplete) {
3094	>	checkIncomplete(g);
3095	>	assertTrue(f.cancel(mayInterruptIfRunning));
3096	>	}
3097	>
3098		checkCompletedWithWrappedCancellationException(g);
3099	<	}
3099	>	checkCancelled(f);
3100	>	}}
3101
3102	+	/**
3103	+	* thenCompose result completes exceptionally if the result of the action does
3104	+	*/
3105	+	public void testThenCompose_actionReturnsFailingFuture() {
3106	+	for (ExecutionMode m : ExecutionMode.values())
3107	+	for (int order = 0; order < 6; order++)
3108	+	for (Integer v1 : new Integer[] { 1, null })
3109	+	{
3110	+	final CFException ex = new CFException();
3111	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3112	+	final CompletableFuture<Integer> g = new CompletableFuture<>();
3113	+	final CompletableFuture<Integer> h;
3114	+	// Test all permutations of orders
3115	+	switch (order) {
3116	+	case 0:
3117	+	assertTrue(f.complete(v1));
3118	+	assertTrue(g.completeExceptionally(ex));
3119	+	h = m.thenCompose(f, (x -> g));
3120	+	break;
3121	+	case 1:
3122	+	assertTrue(f.complete(v1));
3123	+	h = m.thenCompose(f, (x -> g));
3124	+	assertTrue(g.completeExceptionally(ex));
3125	+	break;
3126	+	case 2:
3127	+	assertTrue(g.completeExceptionally(ex));
3128	+	assertTrue(f.complete(v1));
3129	+	h = m.thenCompose(f, (x -> g));
3130	+	break;
3131	+	case 3:
3132	+	assertTrue(g.completeExceptionally(ex));
3133	+	h = m.thenCompose(f, (x -> g));
3134	+	assertTrue(f.complete(v1));
3135	+	break;
3136	+	case 4:
3137	+	h = m.thenCompose(f, (x -> g));
3138	+	assertTrue(f.complete(v1));
3139	+	assertTrue(g.completeExceptionally(ex));
3140	+	break;
3141	+	case 5:
3142	+	h = m.thenCompose(f, (x -> g));
3143	+	assertTrue(f.complete(v1));
3144	+	assertTrue(g.completeExceptionally(ex));
3145	+	break;
3146	+	default: throw new AssertionError();
3147	+	}
3148
3149	<	// asyncs
3149	>	checkCompletedExceptionally(g, ex);
3150	>	checkCompletedWithWrappedException(h, ex);
3151	>	checkCompletedNormally(f, v1);
3152	>	}}
3153
3154		/**
3155	<	* thenRunAsync result completes normally after normal completion of source
3155	>	* exceptionallyCompose result completes normally after normal
3156	>	* completion of source
3157		*/
3158	<	public void testThenRunAsync() {
3159	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3160	<	Noop r = new Noop();
3161	<	CompletableFuture<Void> g = f.thenRunAsync(r);
3162	<	f.complete(null);
3163	<	checkCompletedNormally(g, null);
3164	<
3165	<	// reordered version
3166	<	f = new CompletableFuture<Integer>();
3167	<	f.complete(null);
3168	<	r = new Noop();
3169	<	g = f.thenRunAsync(r);
3170	<	checkCompletedNormally(g, null);
3171	<	}
3158	>	public void testExceptionallyCompose_normalCompletion() {
3159	>	for (ExecutionMode m : ExecutionMode.values())
3160	>	for (boolean createIncomplete : new boolean[] { true, false })
3161	>	for (Integer v1 : new Integer[] { 1, null })
3162	>	{
3163	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
3164	>	final ExceptionalCompletableFutureFunction r =
3165	>	new ExceptionalCompletableFutureFunction(m);
3166	>	if (!createIncomplete) assertTrue(f.complete(v1));
3167	>	final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r);
3168	>	if (createIncomplete) assertTrue(f.complete(v1));
3169	>
3170	>	if (!createIncomplete && testImplementationDetails)
3171	>	assertSame(f, g);   // an optimization
3172	>
3173	>	checkCompletedNormally(f, v1);
3174	>	checkCompletedNormally(g, v1);
3175	>	r.assertNotInvoked();
3176	>	}}
3177
3178		/**
3179	<	* thenRunAsync result completes exceptionally after exceptional
3179	>	* exceptionallyCompose result completes normally after exceptional
3180		* completion of source
3181		*/
3182	<	public void testThenRunAsync2() {
3183	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3184	<	Noop r = new Noop();
3185	<	CompletableFuture<Void> g = f.thenRunAsync(r);
3186	<	f.completeExceptionally(new CFException());
3182	>	public void testExceptionallyCompose_exceptionalCompletion() {
3183	>	for (ExecutionMode m : ExecutionMode.values())
3184	>	for (boolean createIncomplete : new boolean[] { true, false })
3185	>	{
3186	>	final CFException ex = new CFException();
3187	>	final ExceptionalCompletableFutureFunction r =
3188	>	new ExceptionalCompletableFutureFunction(m);
3189	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
3190	>	if (!createIncomplete) f.completeExceptionally(ex);
3191	>	final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r);
3192	>	if (createIncomplete) f.completeExceptionally(ex);
3193	>
3194	>	checkCompletedExceptionally(f, ex);
3195	>	checkCompletedNormally(g, r.value);
3196	>	r.assertInvoked();
3197	>	}}
3198	>
3199	>	/**
3200	>	* exceptionallyCompose completes exceptionally on exception if action does
3201	>	*/
3202	>	public void testExceptionallyCompose_actionFailed() {
3203	>	for (ExecutionMode m : ExecutionMode.values())
3204	>	for (boolean createIncomplete : new boolean[] { true, false })
3205	>	for (Integer v1 : new Integer[] { 1, null })
3206	>	{
3207	>	final CFException ex = new CFException();
3208	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
3209	>	final FailingExceptionalCompletableFutureFunction r
3210	>	= new FailingExceptionalCompletableFutureFunction(m);
3211	>	if (!createIncomplete) f.completeExceptionally(ex);
3212	>	final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r);
3213	>	if (createIncomplete) f.completeExceptionally(ex);
3214	>
3215	>	checkCompletedExceptionally(f, ex);
3216	>	checkCompletedWithWrappedException(g, r.ex);
3217	>	r.assertInvoked();
3218	>	}}
3219	>
3220	>	/**
3221	>	* thenComposeExceptionally result completes exceptionally if the
3222	>	* result of the action does
3223	>	*/
3224	>	public void testExceptionallyCompose_actionReturnsFailingFuture() {
3225	>	for (ExecutionMode m : ExecutionMode.values())
3226	>	for (int order = 0; order < 6; order++)
3227	>	for (Integer v1 : new Integer[] { 1, null })
3228	>	{
3229	>	final CFException ex0 = new CFException();
3230	>	final CFException ex = new CFException();
3231	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
3232	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
3233	>	final CompletableFuture<Integer> h;
3234	>	// Test all permutations of orders
3235	>	switch (order) {
3236	>	case 0:
3237	>	assertTrue(f.completeExceptionally(ex0));
3238	>	assertTrue(g.completeExceptionally(ex));
3239	>	h = m.exceptionallyCompose(f, (x -> g));
3240	>	break;
3241	>	case 1:
3242	>	assertTrue(f.completeExceptionally(ex0));
3243	>	h = m.exceptionallyCompose(f, (x -> g));
3244	>	assertTrue(g.completeExceptionally(ex));
3245	>	break;
3246	>	case 2:
3247	>	assertTrue(g.completeExceptionally(ex));
3248	>	assertTrue(f.completeExceptionally(ex0));
3249	>	h = m.exceptionallyCompose(f, (x -> g));
3250	>	break;
3251	>	case 3:
3252	>	assertTrue(g.completeExceptionally(ex));
3253	>	h = m.exceptionallyCompose(f, (x -> g));
3254	>	assertTrue(f.completeExceptionally(ex0));
3255	>	break;
3256	>	case 4:
3257	>	h = m.exceptionallyCompose(f, (x -> g));
3258	>	assertTrue(f.completeExceptionally(ex0));
3259	>	assertTrue(g.completeExceptionally(ex));
3260	>	break;
3261	>	case 5:
3262	>	h = m.exceptionallyCompose(f, (x -> g));
3263	>	assertTrue(f.completeExceptionally(ex0));
3264	>	assertTrue(g.completeExceptionally(ex));
3265	>	break;
3266	>	default: throw new AssertionError();
3267	>	}
3268	>
3269	>	checkCompletedExceptionally(g, ex);
3270	>
3271	>	// TODO: should this be: checkCompletedWithWrappedException(h, ex);
3272		try {
3273	<	g.join();
3273	>	h.join();
3274		shouldThrow();
3275	<	} catch (Exception ok) {
3275	>	} catch (Throwable t) {
3276	>	assertSame(ex, (t instanceof CompletionException) ? t.getCause() : t);
3277		}
1131	–	checkCompletedWithWrappedCFException(g);
1132	–	}
1133	–
1134	–	/**
1135	–	* thenRunAsync result completes exceptionally if action does
1136	–	*/
1137	–	public void testThenRunAsync3() {
1138	–	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1139	–	FailingNoop r = new FailingNoop();
1140	–	CompletableFuture<Void> g = f.thenRunAsync(r);
1141	–	f.complete(null);
1142	–	checkCompletedWithWrappedCFException(g);
1143	–	}
3278
3279	<	/**
3280	<	* thenRunAsync result completes exceptionally if source cancelled
1147	<	*/
1148	<	public void testThenRunAsync4() {
1149	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1150	<	Noop r = new Noop();
1151	<	CompletableFuture<Void> g = f.thenRunAsync(r);
1152	<	assertTrue(f.cancel(true));
1153	<	checkCompletedWithWrappedCancellationException(g);
1154	<	}
3279	>	checkCompletedExceptionally(f, ex0);
3280	>	}}
3281
3282	<	/**
1157	<	* thenApplyAsync result completes normally after normal completion of source
1158	<	*/
1159	<	public void testThenApplyAsync() {
1160	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1161	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc);
1162	<	f.complete(one);
1163	<	checkCompletedNormally(g, two);
1164	<	}
3282	>	// other static methods
3283
3284		/**
3285	<	* thenApplyAsync result completes exceptionally after exceptional
3286	<	* completion of source
3285	>	* allOf(no component futures) returns a future completed normally
3286	>	* with the value null
3287		*/
3288	<	public void testThenApplyAsync2() {
3289	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3290	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc);
1173	<	f.completeExceptionally(new CFException());
1174	<	checkCompletedWithWrappedCFException(g);
3288	>	public void testAllOf_empty() throws Exception {
3289	>	CompletableFuture<Void> f = CompletableFuture.allOf();
3290	>	checkCompletedNormally(f, null);
3291		}
3292
3293		/**
3294	<	* thenApplyAsync result completes exceptionally if action does
3294	>	* allOf returns a future completed normally with the value null
3295	>	* when all components complete normally
3296		*/
3297	<	public void testThenApplyAsync3() {
3298	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3299	<	FailingFunction r = new FailingFunction();
3300	<	CompletableFuture<Integer> g = f.thenApplyAsync(r);
3301	<	f.complete(null);
3302	<	checkCompletedWithWrappedCFException(g);
3297	>	public void testAllOf_normal() throws Exception {
3298	>	for (int k = 1; k < 10; k++) {
3299	>	CompletableFuture<Integer>[] fs
3300	>	= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3301	>	for (int i = 0; i < k; i++)
3302	>	fs[i] = new CompletableFuture<>();
3303	>	CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3304	>	for (int i = 0; i < k; i++) {
3305	>	checkIncomplete(f);
3306	>	checkIncomplete(CompletableFuture.allOf(fs));
3307	>	fs[i].complete(one);
3308	>	}
3309	>	checkCompletedNormally(f, null);
3310	>	checkCompletedNormally(CompletableFuture.allOf(fs), null);
3311	>	}
3312		}
3313
3314	<	/**
3315	<	* thenApplyAsync result completes exceptionally if source cancelled
3316	<	*/
3317	<	public void testThenApplyAsync4() {
3318	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3319	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc);
3320	<	assertTrue(f.cancel(true));
3321	<	checkCompletedWithWrappedCancellationException(g);
3314	>	public void testAllOf_normal_backwards() throws Exception {
3315	>	for (int k = 1; k < 10; k++) {
3316	>	CompletableFuture<Integer>[] fs
3317	>	= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3318	>	for (int i = 0; i < k; i++)
3319	>	fs[i] = new CompletableFuture<>();
3320	>	CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3321	>	for (int i = k - 1; i >= 0; i--) {
3322	>	checkIncomplete(f);
3323	>	checkIncomplete(CompletableFuture.allOf(fs));
3324	>	fs[i].complete(one);
3325	>	}
3326	>	checkCompletedNormally(f, null);
3327	>	checkCompletedNormally(CompletableFuture.allOf(fs), null);
3328	>	}
3329		}
3330
3331	<	/**
3332	<	* thenAcceptAsync result completes normally after normal
3333	<	* completion of source
3334	<	*/
3335	<	public void testThenAcceptAsync() {
3336	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3337	<	IncAction r = new IncAction();
3338	<	CompletableFuture<Void> g = f.thenAcceptAsync(r);
3339	<	f.complete(one);
3340	<	checkCompletedNormally(g, null);
3341	<	assertEquals(r.value, 2);
3331	>	public void testAllOf_exceptional() throws Exception {
3332	>	for (int k = 1; k < 10; k++) {
3333	>	CompletableFuture<Integer>[] fs
3334	>	= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3335	>	CFException ex = new CFException();
3336	>	for (int i = 0; i < k; i++)
3337	>	fs[i] = new CompletableFuture<>();
3338	>	CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3339	>	for (int i = 0; i < k; i++) {
3340	>	checkIncomplete(f);
3341	>	checkIncomplete(CompletableFuture.allOf(fs));
3342	>	if (i != k / 2) {
3343	>	fs[i].complete(i);
3344	>	checkCompletedNormally(fs[i], i);
3345	>	} else {
3346	>	fs[i].completeExceptionally(ex);
3347	>	checkCompletedExceptionally(fs[i], ex);
3348	>	}
3349	>	}
3350	>	checkCompletedWithWrappedException(f, ex);
3351	>	checkCompletedWithWrappedException(CompletableFuture.allOf(fs), ex);
3352	>	}
3353		}
3354
3355		/**
3356	<	* thenAcceptAsync result completes exceptionally after exceptional
1213	<	* completion of source
3356	>	* anyOf(no component futures) returns an incomplete future
3357		*/
3358	<	public void testThenAcceptAsync2() {
3359	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3360	<	IncAction r = new IncAction();
3361	<	CompletableFuture<Void> g = f.thenAcceptAsync(r);
3362	<	f.completeExceptionally(new CFException());
1220	<	checkCompletedWithWrappedCFException(g);
1221	<	}
3358	>	public void testAnyOf_empty() throws Exception {
3359	>	for (Integer v1 : new Integer[] { 1, null })
3360	>	{
3361	>	CompletableFuture<Object> f = CompletableFuture.anyOf();
3362	>	checkIncomplete(f);
3363
3364	<	/**
3365	<	* thenAcceptAsync result completes exceptionally if action does
3366	<	*/
1226	<	public void testThenAcceptAsync3() {
1227	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1228	<	FailingConsumer r = new FailingConsumer();
1229	<	CompletableFuture<Void> g = f.thenAcceptAsync(r);
1230	<	f.complete(null);
1231	<	checkCompletedWithWrappedCFException(g);
1232	<	}
3364	>	f.complete(v1);
3365	>	checkCompletedNormally(f, v1);
3366	>	}}
3367
3368		/**
3369	<	* thenAcceptAsync result completes exceptionally if source cancelled
3369	>	* anyOf returns a future completed normally with a value when
3370	>	* a component future does
3371		*/
3372	<	public void testThenAcceptAsync4() {
3373	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3374	<	IncAction r = new IncAction();
3375	<	CompletableFuture<Void> g = f.thenAcceptAsync(r);
3376	<	assertTrue(f.cancel(true));
3377	<	checkCompletedWithWrappedCancellationException(g);
3372	>	public void testAnyOf_normal() throws Exception {
3373	>	for (int k = 0; k < 10; k++) {
3374	>	CompletableFuture[] fs = new CompletableFuture[k];
3375	>	for (int i = 0; i < k; i++)
3376	>	fs[i] = new CompletableFuture<>();
3377	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3378	>	checkIncomplete(f);
3379	>	for (int i = 0; i < k; i++) {
3380	>	fs[i].complete(i);
3381	>	checkCompletedNormally(f, 0);
3382	>	int x = (int) CompletableFuture.anyOf(fs).join();
3383	>	assertTrue(0 <= x && x <= i);
3384	>	}
3385	>	}
3386		}
3387	<	/**
3388	<	* thenCombineAsync result completes normally after normal
3389	<	* completion of sources
3390	<	*/
3391	<	public void testThenCombineAsync() {
3392	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3393	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3394	<	CompletableFuture<Integer> g = f.thenCombineAsync(f2, add);
3395	<	f.complete(one);
3396	<	checkIncomplete(g);
3397	<	f2.complete(two);
3398	<	checkCompletedNormally(g, three);
3387	>	public void testAnyOf_normal_backwards() throws Exception {
3388	>	for (int k = 0; k < 10; k++) {
3389	>	CompletableFuture[] fs = new CompletableFuture[k];
3390	>	for (int i = 0; i < k; i++)
3391	>	fs[i] = new CompletableFuture<>();
3392	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3393	>	checkIncomplete(f);
3394	>	for (int i = k - 1; i >= 0; i--) {
3395	>	fs[i].complete(i);
3396	>	checkCompletedNormally(f, k - 1);
3397	>	int x = (int) CompletableFuture.anyOf(fs).join();
3398	>	assertTrue(i <= x && x <= k - 1);
3399	>	}
3400	>	}
3401		}
3402
3403		/**
3404	<	* thenCombineAsync result completes exceptionally after exceptional
1260	<	* completion of source
3404	>	* anyOf result completes exceptionally when any component does.
3405		*/
3406	<	public void testThenCombineAsync2() {
3407	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3408	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3409	<	CompletableFuture<Integer> g = f.thenCombineAsync(f2, add);
3410	<	f.completeExceptionally(new CFException());
3411	<	f2.complete(two);
3412	<	checkCompletedWithWrappedCFException(g);
3413	<
3414	<	f = new CompletableFuture<Integer>();
3415	<	f2 = new CompletableFuture<Integer>();
3416	<	g = f.thenCombineAsync(f2, add);
3417	<	f.complete(one);
3418	<	f2.completeExceptionally(new CFException());
3419	<	checkCompletedWithWrappedCFException(g);
3406	>	public void testAnyOf_exceptional() throws Exception {
3407	>	for (int k = 0; k < 10; k++) {
3408	>	CompletableFuture[] fs = new CompletableFuture[k];
3409	>	CFException[] exs = new CFException[k];
3410	>	for (int i = 0; i < k; i++) {
3411	>	fs[i] = new CompletableFuture<>();
3412	>	exs[i] = new CFException();
3413	>	}
3414	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3415	>	checkIncomplete(f);
3416	>	for (int i = 0; i < k; i++) {
3417	>	fs[i].completeExceptionally(exs[i]);
3418	>	checkCompletedWithWrappedException(f, exs[0]);
3419	>	checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3420	>	}
3421	>	}
3422		}
3423
3424	<	/**
3425	<	* thenCombineAsync result completes exceptionally if action does
3426	<	*/
3427	<	public void testThenCombineAsync3() {
3428	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3429	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3430	<	FailingBiFunction r = new FailingBiFunction();
3431	<	CompletableFuture<Integer> g = f.thenCombineAsync(f2, r);
3432	<	f.complete(one);
3433	<	checkIncomplete(g);
3434	<	f2.complete(two);
3435	<	checkCompletedWithWrappedCFException(g);
3424	>	public void testAnyOf_exceptional_backwards() throws Exception {
3425	>	for (int k = 0; k < 10; k++) {
3426	>	CompletableFuture[] fs = new CompletableFuture[k];
3427	>	CFException[] exs = new CFException[k];
3428	>	for (int i = 0; i < k; i++) {
3429	>	fs[i] = new CompletableFuture<>();
3430	>	exs[i] = new CFException();
3431	>	}
3432	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3433	>	checkIncomplete(f);
3434	>	for (int i = k - 1; i >= 0; i--) {
3435	>	fs[i].completeExceptionally(exs[i]);
3436	>	checkCompletedWithWrappedException(f, exs[k - 1]);
3437	>	checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3438	>	}
3439	>	}
3440		}
3441
3442		/**
3443	<	* thenCombineAsync result completes exceptionally if either source cancelled
3443	>	* Completion methods throw NullPointerException with null arguments
3444		*/
3445	<	public void testThenCombineAsync4() {
3446	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3447	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3448	<	CompletableFuture<Integer> g = f.thenCombineAsync(f2, add);
3449	<	assertTrue(f.cancel(true));
3450	<	f2.complete(two);
3451	<	checkCompletedWithWrappedCancellationException(g);
3452	<
3453	<	f = new CompletableFuture<Integer>();
3454	<	f2 = new CompletableFuture<Integer>();
3455	<	g = f.thenCombineAsync(f2, add);
3456	<	f.complete(one);
3457	<	assertTrue(f2.cancel(true));
3458	<	checkCompletedWithWrappedCancellationException(g);
3459	<	}
3445	>	@SuppressWarnings("FutureReturnValueIgnored")
3446	>	public void testNPE() {
3447	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3448	>	CompletableFuture<Integer> g = new CompletableFuture<>();
3449	>	CompletableFuture<Integer> nullFuture = (CompletableFuture<Integer>)null;
3450	>	ThreadExecutor exec = new ThreadExecutor();
3451	>
3452	>	Runnable[] throwingActions = {
3453	>	() -> CompletableFuture.supplyAsync(null),
3454	>	() -> CompletableFuture.supplyAsync(null, exec),
3455	>	() -> CompletableFuture.supplyAsync(new IntegerSupplier(ExecutionMode.SYNC, 42), null),
3456	>
3457	>	() -> CompletableFuture.runAsync(null),
3458	>	() -> CompletableFuture.runAsync(null, exec),
3459	>	() -> CompletableFuture.runAsync(() -> {}, null),
3460	>
3461	>	() -> f.completeExceptionally(null),
3462	>
3463	>	() -> f.thenApply(null),
3464	>	() -> f.thenApplyAsync(null),
3465	>	() -> f.thenApplyAsync(x -> x, null),
3466	>	() -> f.thenApplyAsync(null, exec),
3467	>
3468	>	() -> f.thenAccept(null),
3469	>	() -> f.thenAcceptAsync(null),
3470	>	() -> f.thenAcceptAsync(x -> {} , null),
3471	>	() -> f.thenAcceptAsync(null, exec),
3472	>
3473	>	() -> f.thenRun(null),
3474	>	() -> f.thenRunAsync(null),
3475	>	() -> f.thenRunAsync(() -> {} , null),
3476	>	() -> f.thenRunAsync(null, exec),
3477	>
3478	>	() -> f.thenCombine(g, null),
3479	>	() -> f.thenCombineAsync(g, null),
3480	>	() -> f.thenCombineAsync(g, null, exec),
3481	>	() -> f.thenCombine(nullFuture, (x, y) -> x),
3482	>	() -> f.thenCombineAsync(nullFuture, (x, y) -> x),
3483	>	() -> f.thenCombineAsync(nullFuture, (x, y) -> x, exec),
3484	>	() -> f.thenCombineAsync(g, (x, y) -> x, null),
3485	>
3486	>	() -> f.thenAcceptBoth(g, null),
3487	>	() -> f.thenAcceptBothAsync(g, null),
3488	>	() -> f.thenAcceptBothAsync(g, null, exec),
3489	>	() -> f.thenAcceptBoth(nullFuture, (x, y) -> {}),
3490	>	() -> f.thenAcceptBothAsync(nullFuture, (x, y) -> {}),
3491	>	() -> f.thenAcceptBothAsync(nullFuture, (x, y) -> {}, exec),
3492	>	() -> f.thenAcceptBothAsync(g, (x, y) -> {}, null),
3493	>
3494	>	() -> f.runAfterBoth(g, null),
3495	>	() -> f.runAfterBothAsync(g, null),
3496	>	() -> f.runAfterBothAsync(g, null, exec),
3497	>	() -> f.runAfterBoth(nullFuture, () -> {}),
3498	>	() -> f.runAfterBothAsync(nullFuture, () -> {}),
3499	>	() -> f.runAfterBothAsync(nullFuture, () -> {}, exec),
3500	>	() -> f.runAfterBothAsync(g, () -> {}, null),
3501	>
3502	>	() -> f.applyToEither(g, null),
3503	>	() -> f.applyToEitherAsync(g, null),
3504	>	() -> f.applyToEitherAsync(g, null, exec),
3505	>	() -> f.applyToEither(nullFuture, x -> x),
3506	>	() -> f.applyToEitherAsync(nullFuture, x -> x),
3507	>	() -> f.applyToEitherAsync(nullFuture, x -> x, exec),
3508	>	() -> f.applyToEitherAsync(g, x -> x, null),
3509	>
3510	>	() -> f.acceptEither(g, null),
3511	>	() -> f.acceptEitherAsync(g, null),
3512	>	() -> f.acceptEitherAsync(g, null, exec),
3513	>	() -> f.acceptEither(nullFuture, x -> {}),
3514	>	() -> f.acceptEitherAsync(nullFuture, x -> {}),
3515	>	() -> f.acceptEitherAsync(nullFuture, x -> {}, exec),
3516	>	() -> f.acceptEitherAsync(g, x -> {}, null),
3517	>
3518	>	() -> f.runAfterEither(g, null),
3519	>	() -> f.runAfterEitherAsync(g, null),
3520	>	() -> f.runAfterEitherAsync(g, null, exec),
3521	>	() -> f.runAfterEither(nullFuture, () -> {}),
3522	>	() -> f.runAfterEitherAsync(nullFuture, () -> {}),
3523	>	() -> f.runAfterEitherAsync(nullFuture, () -> {}, exec),
3524	>	() -> f.runAfterEitherAsync(g, () -> {}, null),
3525	>
3526	>	() -> f.thenCompose(null),
3527	>	() -> f.thenComposeAsync(null),
3528	>	() -> f.thenComposeAsync(new CompletableFutureInc(ExecutionMode.EXECUTOR), null),
3529	>	() -> f.thenComposeAsync(null, exec),
3530	>
3531	>	() -> f.exceptionally(null),
3532	>
3533	>	() -> f.handle(null),
3534	>
3535	>	() -> CompletableFuture.allOf((CompletableFuture<?>)null),
3536	>	() -> CompletableFuture.allOf((CompletableFuture<?>[])null),
3537	>	() -> CompletableFuture.allOf(f, null),
3538	>	() -> CompletableFuture.allOf(null, f),
3539	>
3540	>	() -> CompletableFuture.anyOf((CompletableFuture<?>)null),
3541	>	() -> CompletableFuture.anyOf((CompletableFuture<?>[])null),
3542	>	() -> CompletableFuture.anyOf(f, null),
3543	>	() -> CompletableFuture.anyOf(null, f),
3544	>
3545	>	() -> f.obtrudeException(null),
3546	>
3547	>	() -> CompletableFuture.delayedExecutor(1L, SECONDS, null),
3548	>	() -> CompletableFuture.delayedExecutor(1L, null, exec),
3549	>	() -> CompletableFuture.delayedExecutor(1L, null),
3550	>
3551	>	() -> f.orTimeout(1L, null),
3552	>	() -> f.completeOnTimeout(42, 1L, null),
3553	>
3554	>	() -> CompletableFuture.failedFuture(null),
3555	>	() -> CompletableFuture.failedStage(null),
3556	>	};
3557	>
3558	>	assertThrows(NullPointerException.class, throwingActions);
3559	>	assertEquals(0, exec.count.get());
3560	>	}
3561	>
3562	>	/**
3563	>	* Test submissions to an executor that rejects all tasks.
3564	>	*/
3565	>	public void testRejectingExecutor() {
3566	>	for (Integer v : new Integer[] { 1, null })
3567	>	{
3568	>	final CountingRejectingExecutor e = new CountingRejectingExecutor();
3569	>
3570	>	final CompletableFuture<Integer> complete = CompletableFuture.completedFuture(v);
3571	>	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3572	>
3573	>	List<CompletableFuture<?>> futures = new ArrayList<>();
3574	>
3575	>	List<CompletableFuture<Integer>> srcs = new ArrayList<>();
3576	>	srcs.add(complete);
3577	>	srcs.add(incomplete);
3578	>
3579	>	for (CompletableFuture<Integer> src : srcs) {
3580	>	List<CompletableFuture<?>> fs = new ArrayList<>();
3581	>	fs.add(src.thenRunAsync(() -> {}, e));
3582	>	fs.add(src.thenAcceptAsync(z -> {}, e));
3583	>	fs.add(src.thenApplyAsync(z -> z, e));
3584	>
3585	>	fs.add(src.thenCombineAsync(src, (x, y) -> x, e));
3586	>	fs.add(src.thenAcceptBothAsync(src, (x, y) -> {}, e));
3587	>	fs.add(src.runAfterBothAsync(src, () -> {}, e));
3588	>
3589	>	fs.add(src.applyToEitherAsync(src, z -> z, e));
3590	>	fs.add(src.acceptEitherAsync(src, z -> {}, e));
3591	>	fs.add(src.runAfterEitherAsync(src, () -> {}, e));
3592	>
3593	>	fs.add(src.thenComposeAsync(z -> null, e));
3594	>	fs.add(src.whenCompleteAsync((z, t) -> {}, e));
3595	>	fs.add(src.handleAsync((z, t) -> null, e));
3596	>
3597	>	for (CompletableFuture<?> future : fs) {
3598	>	if (src.isDone())
3599	>	checkCompletedWithWrappedException(future, e.ex);
3600	>	else
3601	>	checkIncomplete(future);
3602	>	}
3603	>	futures.addAll(fs);
3604	>	}
3605
3606	<	/**
3607	<	* thenAcceptBothAsync result completes normally after normal
1313	<	* completion of sources
1314	<	*/
1315	<	public void testThenAcceptBothAsync() {
1316	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1317	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1318	<	AddAction r = new AddAction();
1319	<	CompletableFuture<Void> g = f.thenAcceptBothAsync(f2, r);
1320	<	f.complete(one);
1321	<	checkIncomplete(g);
1322	<	f2.complete(two);
1323	<	checkCompletedNormally(g, null);
1324	<	assertEquals(r.value, 3);
1325	<	}
3606	>	{
3607	>	List<CompletableFuture<?>> fs = new ArrayList<>();
3608
3609	<	/**
3610	<	* thenAcceptBothAsync result completes exceptionally after exceptional
1329	<	* completion of source
1330	<	*/
1331	<	public void testThenAcceptBothAsync2() {
1332	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1333	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1334	<	AddAction r = new AddAction();
1335	<	CompletableFuture<Void> g = f.thenAcceptBothAsync(f2, r);
1336	<	f.completeExceptionally(new CFException());
1337	<	f2.complete(two);
1338	<	checkCompletedWithWrappedCFException(g);
3609	>	fs.add(complete.thenCombineAsync(incomplete, (x, y) -> x, e));
3610	>	fs.add(incomplete.thenCombineAsync(complete, (x, y) -> x, e));
3611
3612	<	r = new AddAction();
3613	<	f = new CompletableFuture<Integer>();
1342	<	f2 = new CompletableFuture<Integer>();
1343	<	g = f.thenAcceptBothAsync(f2, r);
1344	<	f.complete(one);
1345	<	f2.completeExceptionally(new CFException());
1346	<	checkCompletedWithWrappedCFException(g);
1347	<	}
3612	>	fs.add(complete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3613	>	fs.add(incomplete.thenAcceptBothAsync(complete, (x, y) -> {}, e));
3614
3615	<	/**
3616	<	* thenAcceptBothAsync result completes exceptionally if action does
1351	<	*/
1352	<	public void testThenAcceptBothAsync3() {
1353	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1354	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1355	<	FailingBiConsumer r = new FailingBiConsumer();
1356	<	CompletableFuture<Void> g = f.thenAcceptBothAsync(f2, r);
1357	<	f.complete(one);
1358	<	checkIncomplete(g);
1359	<	f2.complete(two);
1360	<	checkCompletedWithWrappedCFException(g);
1361	<	}
3615	>	fs.add(complete.runAfterBothAsync(incomplete, () -> {}, e));
3616	>	fs.add(incomplete.runAfterBothAsync(complete, () -> {}, e));
3617
3618	<	/**
3619	<	* thenAcceptBothAsync result completes exceptionally if either source cancelled
3620	<	*/
3621	<	public void testThenAcceptBothAsync4() {
1367	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1368	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1369	<	AddAction r = new AddAction();
1370	<	CompletableFuture<Void> g = f.thenAcceptBothAsync(f2, r);
1371	<	assertTrue(f.cancel(true));
1372	<	f2.complete(two);
1373	<	checkCompletedWithWrappedCancellationException(g);
3618	>	for (CompletableFuture<?> future : fs)
3619	>	checkIncomplete(future);
3620	>	futures.addAll(fs);
3621	>	}
3622
3623	<	r = new AddAction();
3624	<	f = new CompletableFuture<Integer>();
1377	<	f2 = new CompletableFuture<Integer>();
1378	<	g = f.thenAcceptBothAsync(f2, r);
1379	<	f.complete(one);
1380	<	assertTrue(f2.cancel(true));
1381	<	checkCompletedWithWrappedCancellationException(g);
1382	<	}
3623	>	{
3624	>	List<CompletableFuture<?>> fs = new ArrayList<>();
3625
3626	<	/**
3627	<	* runAfterBothAsync result completes normally after normal
1386	<	* completion of sources
1387	<	*/
1388	<	public void testRunAfterBothAsync() {
1389	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1390	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1391	<	Noop r = new Noop();
1392	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r);
1393	<	f.complete(one);
1394	<	checkIncomplete(g);
1395	<	f2.complete(two);
1396	<	checkCompletedNormally(g, null);
1397	<	assertTrue(r.ran);
1398	<	}
3626	>	fs.add(complete.applyToEitherAsync(incomplete, z -> z, e));
3627	>	fs.add(incomplete.applyToEitherAsync(complete, z -> z, e));
3628
3629	<	/**
3630	<	* runAfterBothAsync result completes exceptionally after exceptional
1402	<	* completion of source
1403	<	*/
1404	<	public void testRunAfterBothAsync2() {
1405	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1406	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1407	<	Noop r = new Noop();
1408	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r);
1409	<	f.completeExceptionally(new CFException());
1410	<	f2.complete(two);
1411	<	checkCompletedWithWrappedCFException(g);
3629	>	fs.add(complete.acceptEitherAsync(incomplete, z -> {}, e));
3630	>	fs.add(incomplete.acceptEitherAsync(complete, z -> {}, e));
3631
3632	<	r = new Noop();
3633	<	f = new CompletableFuture<Integer>();
1415	<	f2 = new CompletableFuture<Integer>();
1416	<	g = f.runAfterBothAsync(f2, r);
1417	<	f.complete(one);
1418	<	f2.completeExceptionally(new CFException());
1419	<	checkCompletedWithWrappedCFException(g);
1420	<	}
3632	>	fs.add(complete.runAfterEitherAsync(incomplete, () -> {}, e));
3633	>	fs.add(incomplete.runAfterEitherAsync(complete, () -> {}, e));
3634
3635	<	/**
3636	<	* runAfterBothAsync result completes exceptionally if action does
3637	<	*/
3638	<	public void testRunAfterBothAsync3() {
1426	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1427	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1428	<	FailingNoop r = new FailingNoop();
1429	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r);
1430	<	f.complete(one);
1431	<	checkIncomplete(g);
1432	<	f2.complete(two);
1433	<	checkCompletedWithWrappedCFException(g);
1434	<	}
3635	>	for (CompletableFuture<?> future : fs)
3636	>	checkCompletedWithWrappedException(future, e.ex);
3637	>	futures.addAll(fs);
3638	>	}
3639
3640	<	/**
1437	<	* runAfterBothAsync result completes exceptionally if either source cancelled
1438	<	*/
1439	<	public void testRunAfterBothAsync4() {
1440	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1441	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1442	<	Noop r = new Noop();
1443	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r);
1444	<	assertTrue(f.cancel(true));
1445	<	f2.complete(two);
1446	<	checkCompletedWithWrappedCancellationException(g);
3640	>	incomplete.complete(v);
3641
3642	<	r = new Noop();
3643	<	f = new CompletableFuture<Integer>();
1450	<	f2 = new CompletableFuture<Integer>();
1451	<	g = f.runAfterBothAsync(f2, r);
1452	<	f.complete(one);
1453	<	assertTrue(f2.cancel(true));
1454	<	checkCompletedWithWrappedCancellationException(g);
1455	<	}
3642	>	for (CompletableFuture<?> future : futures)
3643	>	checkCompletedWithWrappedException(future, e.ex);
3644
3645	<	/**
3646	<	* applyToEitherAsync result completes normally after normal
1459	<	* completion of sources
1460	<	*/
1461	<	public void testApplyToEitherAsync() {
1462	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1463	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1464	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc);
1465	<	f.complete(one);
1466	<	checkCompletedNormally(g, two);
1467	<
1468	<	f = new CompletableFuture<Integer>();
1469	<	f.complete(one);
1470	<	f2 = new CompletableFuture<Integer>();
1471	<	g = f.applyToEitherAsync(f2, inc);
1472	<	checkCompletedNormally(g, two);
1473	<	}
3645	>	assertEquals(futures.size(), e.count.get());
3646	>	}}
3647
3648		/**
3649	<	* applyToEitherAsync result completes exceptionally after exceptional
3650	<	* completion of source
3649	>	* Test submissions to an executor that rejects all tasks, but
3650	>	* should never be invoked because the dependent future is
3651	>	* explicitly completed.
3652		*/
3653	<	public void testApplyToEitherAsync2() {
3654	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3655	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3656	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc);
1483	<	f.completeExceptionally(new CFException());
1484	<	checkCompletedWithWrappedCFException(g);
3653	>	public void testRejectingExecutorNeverInvoked() {
3654	>	for (Integer v : new Integer[] { 1, null })
3655	>	{
3656	>	final CountingRejectingExecutor e = new CountingRejectingExecutor();
3657
3658	<	f = new CompletableFuture<Integer>();
3659	<	f2 = new CompletableFuture<Integer>();
1488	<	f2.completeExceptionally(new CFException());
1489	<	g = f.applyToEitherAsync(f2, inc);
1490	<	f.complete(one);
1491	<	checkCompletedWithWrappedCFException(g);
1492	<	}
3658	>	final CompletableFuture<Integer> complete = CompletableFuture.completedFuture(v);
3659	>	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3660
3661	<	/**
1495	<	* applyToEitherAsync result completes exceptionally if action does
1496	<	*/
1497	<	public void testApplyToEitherAsync3() {
1498	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1499	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1500	<	FailingFunction r = new FailingFunction();
1501	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, r);
1502	<	f.complete(one);
1503	<	checkCompletedWithWrappedCFException(g);
1504	<	}
3661	>	List<CompletableFuture<?>> futures = new ArrayList<>();
3662
3663	<	/**
3664	<	* applyToEitherAsync result completes exceptionally if either source cancelled
3665	<	*/
1509	<	public void testApplyToEitherAsync4() {
1510	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1511	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1512	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc);
1513	<	assertTrue(f.cancel(true));
1514	<	checkCompletedWithWrappedCancellationException(g);
3663	>	List<CompletableFuture<Integer>> srcs = new ArrayList<>();
3664	>	srcs.add(complete);
3665	>	srcs.add(incomplete);
3666
3667	<	f = new CompletableFuture<Integer>();
3668	<	f2 = new CompletableFuture<Integer>();
3669	<	assertTrue(f2.cancel(true));
3670	<	g = f.applyToEitherAsync(f2, inc);
1520	<	checkCompletedWithWrappedCancellationException(g);
1521	<	}
3667	>	List<CompletableFuture<?>> fs = new ArrayList<>();
3668	>	fs.add(incomplete.thenRunAsync(() -> {}, e));
3669	>	fs.add(incomplete.thenAcceptAsync(z -> {}, e));
3670	>	fs.add(incomplete.thenApplyAsync(z -> z, e));
3671
3672	<	/**
3673	<	* acceptEitherAsync result completes normally after normal
3674	<	* completion of sources
1526	<	*/
1527	<	public void testAcceptEitherAsync() {
1528	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1529	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1530	<	IncAction r = new IncAction();
1531	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
1532	<	f.complete(one);
1533	<	checkCompletedNormally(g, null);
1534	<	assertEquals(r.value, 2);
3672	>	fs.add(incomplete.thenCombineAsync(incomplete, (x, y) -> x, e));
3673	>	fs.add(incomplete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3674	>	fs.add(incomplete.runAfterBothAsync(incomplete, () -> {}, e));
3675
3676	<	r = new IncAction();
3677	<	f = new CompletableFuture<Integer>();
3678	<	f.complete(one);
1539	<	f2 = new CompletableFuture<Integer>();
1540	<	g = f.acceptEitherAsync(f2, r);
1541	<	checkCompletedNormally(g, null);
1542	<	assertEquals(r.value, 2);
1543	<	}
3676	>	fs.add(incomplete.applyToEitherAsync(incomplete, z -> z, e));
3677	>	fs.add(incomplete.acceptEitherAsync(incomplete, z -> {}, e));
3678	>	fs.add(incomplete.runAfterEitherAsync(incomplete, () -> {}, e));
3679
3680	<	/**
3681	<	* acceptEitherAsync result completes exceptionally after exceptional
3682	<	* completion of source
1548	<	*/
1549	<	public void testAcceptEitherAsync2() {
1550	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1551	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1552	<	IncAction r = new IncAction();
1553	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
1554	<	f.completeExceptionally(new CFException());
1555	<	checkCompletedWithWrappedCFException(g);
3680	>	fs.add(incomplete.thenComposeAsync(z -> null, e));
3681	>	fs.add(incomplete.whenCompleteAsync((z, t) -> {}, e));
3682	>	fs.add(incomplete.handleAsync((z, t) -> null, e));
3683
3684	<	r = new IncAction();
3685	<	f = new CompletableFuture<Integer>();
1559	<	f2 = new CompletableFuture<Integer>();
1560	<	f2.completeExceptionally(new CFException());
1561	<	g = f.acceptEitherAsync(f2, r);
1562	<	f.complete(one);
1563	<	checkCompletedWithWrappedCFException(g);
1564	<	}
3684	>	fs.add(complete.thenCombineAsync(incomplete, (x, y) -> x, e));
3685	>	fs.add(incomplete.thenCombineAsync(complete, (x, y) -> x, e));
3686
3687	<	/**
3688	<	* acceptEitherAsync result completes exceptionally if action does
1568	<	*/
1569	<	public void testAcceptEitherAsync3() {
1570	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1571	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1572	<	FailingConsumer r = new FailingConsumer();
1573	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
1574	<	f.complete(one);
1575	<	checkCompletedWithWrappedCFException(g);
1576	<	}
3687	>	fs.add(complete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3688	>	fs.add(incomplete.thenAcceptBothAsync(complete, (x, y) -> {}, e));
3689
3690	<	/**
3691	<	* acceptEitherAsync result completes exceptionally if either
1580	<	* source cancelled
1581	<	*/
1582	<	public void testAcceptEitherAsync4() {
1583	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1584	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1585	<	IncAction r = new IncAction();
1586	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
1587	<	assertTrue(f.cancel(true));
1588	<	checkCompletedWithWrappedCancellationException(g);
3690	>	fs.add(complete.runAfterBothAsync(incomplete, () -> {}, e));
3691	>	fs.add(incomplete.runAfterBothAsync(complete, () -> {}, e));
3692
3693	<	r = new IncAction();
3694	<	f = new CompletableFuture<Integer>();
1592	<	f2 = new CompletableFuture<Integer>();
1593	<	assertTrue(f2.cancel(true));
1594	<	g = f.acceptEitherAsync(f2, r);
1595	<	checkCompletedWithWrappedCancellationException(g);
1596	<	}
3693	>	for (CompletableFuture<?> future : fs)
3694	>	checkIncomplete(future);
3695
3696	<	/**
3697	<	* runAfterEitherAsync result completes normally after normal
1600	<	* completion of sources
1601	<	*/
1602	<	public void testRunAfterEitherAsync() {
1603	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1604	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1605	<	Noop r = new Noop();
1606	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
1607	<	f.complete(one);
1608	<	checkCompletedNormally(g, null);
1609	<	assertTrue(r.ran);
3696	>	for (CompletableFuture<?> future : fs)
3697	>	future.complete(null);
3698
3699	<	r = new Noop();
1612	<	f = new CompletableFuture<Integer>();
1613	<	f.complete(one);
1614	<	f2 = new CompletableFuture<Integer>();
1615	<	g = f.runAfterEitherAsync(f2, r);
1616	<	checkCompletedNormally(g, null);
1617	<	assertTrue(r.ran);
1618	<	}
3699	>	incomplete.complete(v);
3700
3701	<	/**
3702	<	* runAfterEitherAsync result completes exceptionally after exceptional
1622	<	* completion of source
1623	<	*/
1624	<	public void testRunAfterEitherAsync2() {
1625	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1626	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1627	<	Noop r = new Noop();
1628	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
1629	<	f.completeExceptionally(new CFException());
1630	<	checkCompletedWithWrappedCFException(g);
3701	>	for (CompletableFuture<?> future : fs)
3702	>	checkCompletedNormally(future, null);
3703
3704	<	r = new Noop();
3705	<	f = new CompletableFuture<Integer>();
1634	<	f2 = new CompletableFuture<Integer>();
1635	<	f2.completeExceptionally(new CFException());
1636	<	g = f.runAfterEitherAsync(f2, r);
1637	<	f.complete(one);
1638	<	checkCompletedWithWrappedCFException(g);
1639	<	}
3704	>	assertEquals(0, e.count.get());
3705	>	}}
3706
3707		/**
3708	<	* runAfterEitherAsync result completes exceptionally if action does
3708	>	* toCompletableFuture returns this CompletableFuture.
3709		*/
3710	<	public void testRunAfterEitherAsync3() {
3711	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3712	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1647	<	FailingNoop r = new FailingNoop();
1648	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
1649	<	f.complete(one);
1650	<	checkCompletedWithWrappedCFException(g);
3710	>	public void testToCompletableFuture() {
3711	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3712	>	assertSame(f, f.toCompletableFuture());
3713		}
3714
3715	<	/**
1654	<	* runAfterEitherAsync result completes exceptionally if either
1655	<	* source cancelled
1656	<	*/
1657	<	public void testRunAfterEitherAsync4() {
1658	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1659	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1660	<	Noop r = new Noop();
1661	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
1662	<	assertTrue(f.cancel(true));
1663	<	checkCompletedWithWrappedCancellationException(g);
1664	<
1665	<	r = new Noop();
1666	<	f = new CompletableFuture<Integer>();
1667	<	f2 = new CompletableFuture<Integer>();
1668	<	assertTrue(f2.cancel(true));
1669	<	g = f.runAfterEitherAsync(f2, r);
1670	<	checkCompletedWithWrappedCancellationException(g);
1671	<	}
3715	>	// jdk9
3716
3717		/**
3718	<	* thenCompse result completes normally after normal completion of source
3718	>	* newIncompleteFuture returns an incomplete CompletableFuture
3719		*/
3720	<	public void testThenComposeAsync() {
3721	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3722	<	CompletableFutureInc r = new CompletableFutureInc();
3723	<	CompletableFuture<Integer> g = f.thenComposeAsync(r);
3724	<	f.complete(one);
3725	<	checkCompletedNormally(g, two);
3726	<	}
3727	<
3728	<	/**
3729	<	* thenComposeAsync result completes exceptionally after exceptional
3730	<	* completion of source
3731	<	*/
3732	<	public void testThenComposeAsync2() {
3733	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1690	<	CompletableFutureInc r = new CompletableFutureInc();
1691	<	CompletableFuture<Integer> g = f.thenComposeAsync(r);
1692	<	f.completeExceptionally(new CFException());
1693	<	checkCompletedWithWrappedCFException(g);
1694	<	}
3720	>	public void testNewIncompleteFuture() {
3721	>	for (Integer v1 : new Integer[] { 1, null })
3722	>	{
3723	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3724	>	CompletableFuture<Integer> g = f.newIncompleteFuture();
3725	>	checkIncomplete(f);
3726	>	checkIncomplete(g);
3727	>	f.complete(v1);
3728	>	checkCompletedNormally(f, v1);
3729	>	checkIncomplete(g);
3730	>	g.complete(v1);
3731	>	checkCompletedNormally(g, v1);
3732	>	assertSame(g.getClass(), CompletableFuture.class);
3733	>	}}
3734
3735		/**
3736	<	* thenComposeAsync result completes exceptionally if action does
3736	>	* completedStage returns a completed CompletionStage
3737		*/
3738	<	public void testThenComposeAsync3() {
3739	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3740	<	FailingCompletableFutureFunction r = new FailingCompletableFutureFunction();
3741	<	CompletableFuture<Integer> g = f.thenComposeAsync(r);
3742	<	f.complete(one);
3743	<	checkCompletedWithWrappedCFException(g);
3738	>	public void testCompletedStage() {
3739	>	AtomicInteger x = new AtomicInteger(0);
3740	>	AtomicReference<Throwable> r = new AtomicReference<>();
3741	>	CompletionStage<Integer> f = CompletableFuture.completedStage(1);
3742	>	f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3743	>	assertEquals(x.get(), 1);
3744	>	assertNull(r.get());
3745		}
3746
3747		/**
3748	<	* thenComposeAsync result completes exceptionally if source cancelled
3748	>	* defaultExecutor by default returns the commonPool if
3749	>	* it supports more than one thread.
3750		*/
3751	<	public void testThenComposeAsync4() {
3752	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3753	<	CompletableFutureInc r = new CompletableFutureInc();
3754	<	CompletableFuture<Integer> g = f.thenComposeAsync(r);
3755	<	assertTrue(f.cancel(true));
3756	<	checkCompletedWithWrappedCancellationException(g);
3751	>	public void testDefaultExecutor() {
3752	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3753	>	Executor e = f.defaultExecutor();
3754	>	Executor c = ForkJoinPool.commonPool();
3755	>	if (ForkJoinPool.getCommonPoolParallelism() > 1)
3756	>	assertSame(e, c);
3757	>	else
3758	>	assertNotSame(e, c);
3759		}
3760
1718	–
1719	–	// aaync with explicit executors
1720	–
3761		/**
3762	<	* thenRunAsync result completes normally after normal completion of source
3762	>	* failedFuture returns a CompletableFuture completed
3763	>	* exceptionally with the given Exception
3764		*/
3765	<	public void testThenRunAsyncE() {
3766	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3767	<	Noop r = new Noop();
3768	<	CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
1728	<	f.complete(null);
1729	<	checkCompletedNormally(g, null);
1730	<
1731	<	// reordered version
1732	<	f = new CompletableFuture<Integer>();
1733	<	f.complete(null);
1734	<	r = new Noop();
1735	<	g = f.thenRunAsync(r, new ThreadExecutor());
1736	<	checkCompletedNormally(g, null);
3765	>	public void testFailedFuture() {
3766	>	CFException ex = new CFException();
3767	>	CompletableFuture<Integer> f = CompletableFuture.failedFuture(ex);
3768	>	checkCompletedExceptionally(f, ex);
3769		}
3770
3771		/**
3772	<	* thenRunAsync result completes exceptionally after exceptional
1741	<	* completion of source
3772	>	* failedFuture(null) throws NPE
3773		*/
3774	<	public void testThenRunAsync2E() {
1744	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1745	<	Noop r = new Noop();
1746	<	CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
1747	<	f.completeExceptionally(new CFException());
3774	>	public void testFailedFuture_null() {
3775		try {
3776	<	g.join();
3776	>	CompletableFuture<Integer> f = CompletableFuture.failedFuture(null);
3777		shouldThrow();
3778	<	} catch (Exception ok) {
1752	<	}
1753	<	checkCompletedWithWrappedCFException(g);
1754	<	}
1755	<
1756	<	/**
1757	<	* thenRunAsync result completes exceptionally if action does
1758	<	*/
1759	<	public void testThenRunAsync3E() {
1760	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1761	<	FailingNoop r = new FailingNoop();
1762	<	CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
1763	<	f.complete(null);
1764	<	checkCompletedWithWrappedCFException(g);
3778	>	} catch (NullPointerException success) {}
3779		}
3780
3781		/**
3782	<	* thenRunAsync result completes exceptionally if source cancelled
3782	>	* copy returns a CompletableFuture that is completed normally,
3783	>	* with the same value, when source is.
3784		*/
3785	<	public void testThenRunAsync4E() {
3786	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3787	<	Noop r = new Noop();
3788	<	CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
3789	<	assertTrue(f.cancel(true));
3790	<	checkCompletedWithWrappedCancellationException(g);
3791	<	}
3792	<
3793	<	/**
3794	<	* thenApplyAsync result completes normally after normal completion of source
3795	<	*/
3796	<	public void testThenApplyAsyncE() {
3797	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3798	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc, new ThreadExecutor());
3799	<	f.complete(one);
3800	<	checkCompletedNormally(g, two);
3801	<	}
3785	>	public void testCopy_normalCompletion() {
3786	>	for (boolean createIncomplete : new boolean[] { true, false })
3787	>	for (Integer v1 : new Integer[] { 1, null })
3788	>	{
3789	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3790	>	if (!createIncomplete) assertTrue(f.complete(v1));
3791	>	CompletableFuture<Integer> g = f.copy();
3792	>	if (createIncomplete) {
3793	>	checkIncomplete(f);
3794	>	checkIncomplete(g);
3795	>	assertTrue(f.complete(v1));
3796	>	}
3797	>	checkCompletedNormally(f, v1);
3798	>	checkCompletedNormally(g, v1);
3799	>	}}
3800	>
3801	>	/**
3802	>	* copy returns a CompletableFuture that is completed exceptionally
3803	>	* when source is.
3804	>	*/
3805	>	public void testCopy_exceptionalCompletion() {
3806	>	for (boolean createIncomplete : new boolean[] { true, false })
3807	>	{
3808	>	CFException ex = new CFException();
3809	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3810	>	if (!createIncomplete) f.completeExceptionally(ex);
3811	>	CompletableFuture<Integer> g = f.copy();
3812	>	if (createIncomplete) {
3813	>	checkIncomplete(f);
3814	>	checkIncomplete(g);
3815	>	f.completeExceptionally(ex);
3816	>	}
3817	>	checkCompletedExceptionally(f, ex);
3818	>	checkCompletedWithWrappedException(g, ex);
3819	>	}}
3820
3821		/**
3822	<	* thenApplyAsync result completes exceptionally after exceptional
3823	<	* completion of source
3824	<	*/
3825	<	public void testThenApplyAsync2E() {
3826	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3827	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc, new ThreadExecutor());
3828	<	f.completeExceptionally(new CFException());
3829	<	checkCompletedWithWrappedCFException(g);
3822	>	* Completion of a copy does not complete its source.
3823	>	*/
3824	>	public void testCopy_oneWayPropagation() {
3825	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3826	>	assertTrue(f.copy().complete(1));
3827	>	assertTrue(f.copy().complete(null));
3828	>	assertTrue(f.copy().cancel(true));
3829	>	assertTrue(f.copy().cancel(false));
3830	>	assertTrue(f.copy().completeExceptionally(new CFException()));
3831	>	checkIncomplete(f);
3832		}
3833
3834		/**
3835	<	* thenApplyAsync result completes exceptionally if action does
3835	>	* minimalCompletionStage returns a CompletableFuture that is
3836	>	* completed normally, with the same value, when source is.
3837		*/
3838	<	public void testThenApplyAsync3E() {
3839	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3840	<	FailingFunction r = new FailingFunction();
3841	<	CompletableFuture<Integer> g = f.thenApplyAsync(r, new ThreadExecutor());
3842	<	f.complete(null);
3843	<	checkCompletedWithWrappedCFException(g);
3838	>	public void testMinimalCompletionStage() {
3839	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3840	>	CompletionStage<Integer> g = f.minimalCompletionStage();
3841	>	AtomicInteger x = new AtomicInteger(0);
3842	>	AtomicReference<Throwable> r = new AtomicReference<>();
3843	>	checkIncomplete(f);
3844	>	g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3845	>	f.complete(1);
3846	>	checkCompletedNormally(f, 1);
3847	>	assertEquals(x.get(), 1);
3848	>	assertNull(r.get());
3849		}
3850
3851		/**
3852	<	* thenApplyAsync result completes exceptionally if source cancelled
3852	>	* minimalCompletionStage returns a CompletableFuture that is
3853	>	* completed exceptionally when source is.
3854		*/
3855	<	public void testThenApplyAsync4E() {
3856	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3857	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc, new ThreadExecutor());
3858	<	assertTrue(f.cancel(true));
3859	<	checkCompletedWithWrappedCancellationException(g);
3855	>	public void testMinimalCompletionStage2() {
3856	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3857	>	CompletionStage<Integer> g = f.minimalCompletionStage();
3858	>	AtomicInteger x = new AtomicInteger(0);
3859	>	AtomicReference<Throwable> r = new AtomicReference<>();
3860	>	g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3861	>	checkIncomplete(f);
3862	>	CFException ex = new CFException();
3863	>	f.completeExceptionally(ex);
3864	>	checkCompletedExceptionally(f, ex);
3865	>	assertEquals(x.get(), 0);
3866	>	assertEquals(r.get().getCause(), ex);
3867		}
3868
3869		/**
3870	<	* thenAcceptAsync result completes normally after normal
3871	<	* completion of source
3870	>	* failedStage returns a CompletionStage completed
3871	>	* exceptionally with the given Exception
3872		*/
3873	<	public void testThenAcceptAsyncE() {
3874	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3875	<	IncAction r = new IncAction();
3876	<	CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
3877	<	f.complete(one);
3878	<	checkCompletedNormally(g, null);
3879	<	assertEquals(r.value, 2);
3873	>	public void testFailedStage() {
3874	>	CFException ex = new CFException();
3875	>	CompletionStage<Integer> f = CompletableFuture.failedStage(ex);
3876	>	AtomicInteger x = new AtomicInteger(0);
3877	>	AtomicReference<Throwable> r = new AtomicReference<>();
3878	>	f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3879	>	assertEquals(x.get(), 0);
3880	>	assertEquals(r.get(), ex);
3881		}
3882
3883		/**
3884	<	* thenAcceptAsync result completes exceptionally after exceptional
1835	<	* completion of source
3884	>	* completeAsync completes with value of given supplier
3885		*/
3886	<	public void testThenAcceptAsync2E() {
3887	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3888	<	IncAction r = new IncAction();
3889	<	CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
3890	<	f.completeExceptionally(new CFException());
3891	<	checkCompletedWithWrappedCFException(g);
3892	<	}
3886	>	public void testCompleteAsync() {
3887	>	for (Integer v1 : new Integer[] { 1, null })
3888	>	{
3889	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3890	>	f.completeAsync(() -> v1);
3891	>	f.join();
3892	>	checkCompletedNormally(f, v1);
3893	>	}}
3894
3895		/**
3896	<	* thenAcceptAsync result completes exceptionally if action does
3896	>	* completeAsync completes exceptionally if given supplier throws
3897		*/
3898	<	public void testThenAcceptAsync3E() {
3899	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3900	<	FailingConsumer r = new FailingConsumer();
3901	<	CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
3902	<	f.complete(null);
3903	<	checkCompletedWithWrappedCFException(g);
3898	>	public void testCompleteAsync2() {
3899	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3900	>	CFException ex = new CFException();
3901	>	f.completeAsync(() -> { throw ex; });
3902	>	try {
3903	>	f.join();
3904	>	shouldThrow();
3905	>	} catch (CompletionException success) {}
3906	>	checkCompletedWithWrappedException(f, ex);
3907		}
3908
3909		/**
3910	<	* thenAcceptAsync result completes exceptionally if source cancelled
1858	<	*/
1859	<	public void testThenAcceptAsync4E() {
1860	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1861	<	IncAction r = new IncAction();
1862	<	CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
1863	<	assertTrue(f.cancel(true));
1864	<	checkCompletedWithWrappedCancellationException(g);
1865	<	}
1866	<	/**
1867	<	* thenCombineAsync result completes normally after normal
1868	<	* completion of sources
3910	>	* completeAsync with given executor completes with value of given supplier
3911		*/
3912	<	public void testThenCombineAsyncE() {
3913	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3914	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3915	<	CompletableFuture<Integer> g = f.thenCombineAsync(f2, add, new ThreadExecutor());
3916	<	f.complete(one);
3917	<	checkIncomplete(g);
3918	<	f2.complete(two);
3919	<	checkCompletedNormally(g, three);
3920	<	}
3912	>	public void testCompleteAsync3() {
3913	>	for (Integer v1 : new Integer[] { 1, null })
3914	>	{
3915	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3916	>	ThreadExecutor executor = new ThreadExecutor();
3917	>	f.completeAsync(() -> v1, executor);
3918	>	assertSame(v1, f.join());
3919	>	checkCompletedNormally(f, v1);
3920	>	assertEquals(1, executor.count.get());
3921	>	}}
3922
3923		/**
3924	<	* thenCombineAsync result completes exceptionally after exceptional
3925	<	* completion of source
3924	>	* completeAsync with given executor completes exceptionally if
3925	>	* given supplier throws
3926		*/
3927	<	public void testThenCombineAsync2E() {
3928	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3929	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3930	<	CompletableFuture<Integer> g = f.thenCombineAsync(f2, add, new ThreadExecutor());
3931	<	f.completeExceptionally(new CFException());
3932	<	f2.complete(two);
3933	<	checkCompletedWithWrappedCFException(g);
3927	>	public void testCompleteAsync4() {
3928	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3929	>	CFException ex = new CFException();
3930	>	ThreadExecutor executor = new ThreadExecutor();
3931	>	f.completeAsync(() -> { throw ex; }, executor);
3932	>	try {
3933	>	f.join();
3934	>	shouldThrow();
3935	>	} catch (CompletionException success) {}
3936	>	checkCompletedWithWrappedException(f, ex);
3937	>	assertEquals(1, executor.count.get());
3938	>	}
3939	>
3940	>	/**
3941	>	* orTimeout completes with TimeoutException if not complete
3942	>	*/
3943	>	public void testOrTimeout_timesOut() {
3944	>	long timeoutMillis = timeoutMillis();
3945	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3946	>	long startTime = System.nanoTime();
3947	>	assertSame(f, f.orTimeout(timeoutMillis, MILLISECONDS));
3948	>	checkCompletedWithTimeoutException(f);
3949	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3950	>	}
3951	>
3952	>	/**
3953	>	* orTimeout completes normally if completed before timeout
3954	>	*/
3955	>	public void testOrTimeout_completed() {
3956	>	for (Integer v1 : new Integer[] { 1, null })
3957	>	{
3958	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3959	>	CompletableFuture<Integer> g = new CompletableFuture<>();
3960	>	long startTime = System.nanoTime();
3961	>	f.complete(v1);
3962	>	assertSame(f, f.orTimeout(LONG_DELAY_MS, MILLISECONDS));
3963	>	assertSame(g, g.orTimeout(LONG_DELAY_MS, MILLISECONDS));
3964	>	g.complete(v1);
3965	>	checkCompletedNormally(f, v1);
3966	>	checkCompletedNormally(g, v1);
3967	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3968	>	}}
3969	>
3970	>	/**
3971	>	* completeOnTimeout completes with given value if not complete
3972	>	*/
3973	>	public void testCompleteOnTimeout_timesOut() {
3974	>	testInParallel(() -> testCompleteOnTimeout_timesOut(42),
3975	>	() -> testCompleteOnTimeout_timesOut(null));
3976	>	}
3977	>
3978	>	/**
3979	>	* completeOnTimeout completes with given value if not complete
3980	>	*/
3981	>	public void testCompleteOnTimeout_timesOut(Integer v) {
3982	>	long timeoutMillis = timeoutMillis();
3983	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3984	>	long startTime = System.nanoTime();
3985	>	assertSame(f, f.completeOnTimeout(v, timeoutMillis, MILLISECONDS));
3986	>	assertSame(v, f.join());
3987	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3988	>	f.complete(99);         // should have no effect
3989	>	checkCompletedNormally(f, v);
3990	>	}
3991	>
3992	>	/**
3993	>	* completeOnTimeout has no effect if completed within timeout
3994	>	*/
3995	>	public void testCompleteOnTimeout_completed() {
3996	>	for (Integer v1 : new Integer[] { 1, null })
3997	>	{
3998	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3999	>	CompletableFuture<Integer> g = new CompletableFuture<>();
4000	>	long startTime = System.nanoTime();
4001	>	f.complete(v1);
4002	>	assertSame(f, f.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS));
4003	>	assertSame(g, g.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS));
4004	>	g.complete(v1);
4005	>	checkCompletedNormally(f, v1);
4006	>	checkCompletedNormally(g, v1);
4007	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
4008	>	}}
4009	>
4010	>	/**
4011	>	* delayedExecutor returns an executor that delays submission
4012	>	*/
4013	>	public void testDelayedExecutor() {
4014	>	testInParallel(() -> testDelayedExecutor(null, null),
4015	>	() -> testDelayedExecutor(null, 1),
4016	>	() -> testDelayedExecutor(new ThreadExecutor(), 1),
4017	>	() -> testDelayedExecutor(new ThreadExecutor(), 1));
4018	>	}
4019	>
4020	>	public void testDelayedExecutor(Executor executor, Integer v) throws Exception {
4021	>	long timeoutMillis = timeoutMillis();
4022	>	// Use an "unreasonably long" long timeout to catch lingering threads
4023	>	long longTimeoutMillis = 1000 * 60 * 60 * 24;
4024	>	final Executor delayer, longDelayer;
4025	>	if (executor == null) {
4026	>	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS);
4027	>	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS);
4028	>	} else {
4029	>	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS, executor);
4030	>	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS, executor);
4031	>	}
4032	>	long startTime = System.nanoTime();
4033	>	CompletableFuture<Integer> f =
4034	>	CompletableFuture.supplyAsync(() -> v, delayer);
4035	>	CompletableFuture<Integer> g =
4036	>	CompletableFuture.supplyAsync(() -> v, longDelayer);
4037	>
4038	>	assertNull(g.getNow(null));
4039	>
4040	>	assertSame(v, f.get(LONG_DELAY_MS, MILLISECONDS));
4041	>	long millisElapsed = millisElapsedSince(startTime);
4042	>	assertTrue(millisElapsed >= timeoutMillis);
4043	>	assertTrue(millisElapsed < LONG_DELAY_MS / 2);
4044
4045	<	f = new CompletableFuture<Integer>();
1893	<	f2 = new CompletableFuture<Integer>();
1894	<	g = f.thenCombineAsync(f2, add, new ThreadExecutor());
1895	<	f.complete(one);
1896	<	f2.completeExceptionally(new CFException());
1897	<	checkCompletedWithWrappedCFException(g);
1898	<	}
4045	>	checkCompletedNormally(f, v);
4046
1900	–	/**
1901	–	* thenCombineAsync result completes exceptionally if action does
1902	–	*/
1903	–	public void testThenCombineAsync3E() {
1904	–	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1905	–	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1906	–	FailingBiFunction r = new FailingBiFunction();
1907	–	CompletableFuture<Integer> g = f.thenCombineAsync(f2, r, new ThreadExecutor());
1908	–	f.complete(one);
4047		checkIncomplete(g);
4048	<	f2.complete(two);
1911	<	checkCompletedWithWrappedCFException(g);
4048	>	assertTrue(g.cancel(true));
4049		}
4050
4051	<	/**
1915	<	* thenCombineAsync result completes exceptionally if either source cancelled
1916	<	*/
1917	<	public void testThenCombineAsync4E() {
1918	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1919	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1920	<	CompletableFuture<Integer> g = f.thenCombineAsync(f2, add, new ThreadExecutor());
1921	<	assertTrue(f.cancel(true));
1922	<	f2.complete(two);
1923	<	checkCompletedWithWrappedCancellationException(g);
4051	>	//--- tests of implementation details; not part of official tck ---
4052
4053	<	f = new CompletableFuture<Integer>();
4054	<	f2 = new CompletableFuture<Integer>();
4055	<	g = f.thenCombineAsync(f2, add, new ThreadExecutor());
4056	<	f.complete(one);
4057	<	assertTrue(f2.cancel(true));
4058	<	checkCompletedWithWrappedCancellationException(g);
4059	<	}
4053	>	Object resultOf(CompletableFuture<?> f) {
4054	>	SecurityManager sm = System.getSecurityManager();
4055	>	if (sm != null) {
4056	>	try {
4057	>	System.setSecurityManager(null);
4058	>	} catch (SecurityException giveUp) {
4059	>	return "Reflection not available";
4060	>	}
4061	>	}
4062
4063	<	/**
4064	<	* thenAcceptBothAsync result completes normally after normal
4065	<	* completion of sources
4066	<	*/
4067	<	public void testThenAcceptBothAsyncE() {
4068	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
4069	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
4070	<	AddAction r = new AddAction();
4071	<	CompletableFuture<Void> g = f.thenAcceptBothAsync(f2, r, new ThreadExecutor());
4072	<	f.complete(one);
1943	<	checkIncomplete(g);
1944	<	f2.complete(two);
1945	<	checkCompletedNormally(g, null);
1946	<	assertEquals(r.value, 3);
4063	>	try {
4064	>	java.lang.reflect.Field resultField
4065	>	= CompletableFuture.class.getDeclaredField("result");
4066	>	resultField.setAccessible(true);
4067	>	return resultField.get(f);
4068	>	} catch (Throwable t) {
4069	>	throw new AssertionError(t);
4070	>	} finally {
4071	>	if (sm != null) System.setSecurityManager(sm);
4072	>	}
4073		}
4074
4075	<	/**
4076	<	* thenAcceptBothAsync result completes exceptionally after exceptional
4077	<	* completion of source
4078	<	*/
4079	<	public void testThenAcceptBothAsync2E() {
4080	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
4081	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
4082	<	AddAction r = new AddAction();
4083	<	CompletableFuture<Void> g = f.thenAcceptBothAsync(f2, r, new ThreadExecutor());
4084	<	f.completeExceptionally(new CFException());
4085	<	f2.complete(two);
4086	<	checkCompletedWithWrappedCFException(g);
4087	<
4088	<	r = new AddAction();
4089	<	f = new CompletableFuture<Integer>();
4090	<	f2 = new CompletableFuture<Integer>();
4091	<	g = f.thenAcceptBothAsync(f2, r, new ThreadExecutor());
4092	<	f.complete(one);
4093	<	f2.completeExceptionally(new CFException());
4094	<	checkCompletedWithWrappedCFException(g);
4095	<	}
4075	>	public void testExceptionPropagationReusesResultObject() {
4076	>	if (!testImplementationDetails) return;
4077	>	for (ExecutionMode m : ExecutionMode.values())
4078	>	{
4079	>	final CFException ex = new CFException();
4080	>	final CompletableFuture<Integer> v42 = CompletableFuture.completedFuture(42);
4081	>	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
4082	>
4083	>	final Runnable noopRunnable = new Noop(m);
4084	>	final Consumer<Integer> noopConsumer = new NoopConsumer(m);
4085	>	final Function<Integer, Integer> incFunction = new IncFunction(m);
4086	>
4087	>	List<Function<CompletableFuture<Integer>, CompletableFuture<?>>> funs
4088	>	= new ArrayList<>();
4089	>
4090	>	funs.add(y -> m.thenRun(y, noopRunnable));
4091	>	funs.add(y -> m.thenAccept(y, noopConsumer));
4092	>	funs.add(y -> m.thenApply(y, incFunction));
4093	>
4094	>	funs.add(y -> m.runAfterEither(y, incomplete, noopRunnable));
4095	>	funs.add(y -> m.acceptEither(y, incomplete, noopConsumer));
4096	>	funs.add(y -> m.applyToEither(y, incomplete, incFunction));
4097	>
4098	>	funs.add(y -> m.runAfterBoth(y, v42, noopRunnable));
4099	>	funs.add(y -> m.runAfterBoth(v42, y, noopRunnable));
4100	>	funs.add(y -> m.thenAcceptBoth(y, v42, new SubtractAction(m)));
4101	>	funs.add(y -> m.thenAcceptBoth(v42, y, new SubtractAction(m)));
4102	>	funs.add(y -> m.thenCombine(y, v42, new SubtractFunction(m)));
4103	>	funs.add(y -> m.thenCombine(v42, y, new SubtractFunction(m)));
4104	>
4105	>	funs.add(y -> m.whenComplete(y, (Integer r, Throwable t) -> {}));
4106	>
4107	>	funs.add(y -> m.thenCompose(y, new CompletableFutureInc(m)));
4108	>
4109	>	funs.add(y -> CompletableFuture.allOf(y));
4110	>	funs.add(y -> CompletableFuture.allOf(y, v42));
4111	>	funs.add(y -> CompletableFuture.allOf(v42, y));
4112	>	funs.add(y -> CompletableFuture.anyOf(y));
4113	>	funs.add(y -> CompletableFuture.anyOf(y, incomplete));
4114	>	funs.add(y -> CompletableFuture.anyOf(incomplete, y));
4115	>
4116	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
4117	>	fun : funs) {
4118	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4119	>	f.completeExceptionally(ex);
4120	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4121	>	checkCompletedWithWrappedException(src, ex);
4122	>	CompletableFuture<?> dep = fun.apply(src);
4123	>	checkCompletedWithWrappedException(dep, ex);
4124	>	assertSame(resultOf(src), resultOf(dep));
4125	>	}
4126
4127	<	/**
4128	<	* thenAcceptBothAsync result completes exceptionally if action does
4129	<	*/
4130	<	public void testThenAcceptBothAsync3E() {
4131	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
4132	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
4133	<	FailingBiConsumer r = new FailingBiConsumer();
4134	<	CompletableFuture<Void> g = f.thenAcceptBothAsync(f2, r, new ThreadExecutor());
4135	<	f.complete(one);
4136	<	checkIncomplete(g);
1981	<	f2.complete(two);
1982	<	checkCompletedWithWrappedCFException(g);
1983	<	}
4127	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
4128	>	fun : funs) {
4129	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4130	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4131	>	CompletableFuture<?> dep = fun.apply(src);
4132	>	f.completeExceptionally(ex);
4133	>	checkCompletedWithWrappedException(src, ex);
4134	>	checkCompletedWithWrappedException(dep, ex);
4135	>	assertSame(resultOf(src), resultOf(dep));
4136	>	}
4137
4138	<	/**
4139	<	* thenAcceptBothAsync result completes exceptionally if either source cancelled
4140	<	*/
4141	<	public void testThenAcceptBothAsync4E() {
4142	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
4143	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
4144	<	AddAction r = new AddAction();
4145	<	CompletableFuture<Void> g = f.thenAcceptBothAsync(f2, r, new ThreadExecutor());
4146	<	assertTrue(f.cancel(true));
4147	<	f2.complete(two);
4148	<	checkCompletedWithWrappedCancellationException(g);
4138	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
4139	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
4140	>	fun : funs) {
4141	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4142	>	f.cancel(mayInterruptIfRunning);
4143	>	checkCancelled(f);
4144	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4145	>	checkCompletedWithWrappedCancellationException(src);
4146	>	CompletableFuture<?> dep = fun.apply(src);
4147	>	checkCompletedWithWrappedCancellationException(dep);
4148	>	assertSame(resultOf(src), resultOf(dep));
4149	>	}
4150
4151	<	r = new AddAction();
4152	<	f = new CompletableFuture<Integer>();
4153	<	f2 = new CompletableFuture<Integer>();
4154	<	g = f.thenAcceptBothAsync(f2, r, new ThreadExecutor());
4155	<	f.complete(one);
4156	<	assertTrue(f2.cancel(true));
4157	<	checkCompletedWithWrappedCancellationException(g);
4158	<	}
4151	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
4152	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
4153	>	fun : funs) {
4154	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4155	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4156	>	CompletableFuture<?> dep = fun.apply(src);
4157	>	f.cancel(mayInterruptIfRunning);
4158	>	checkCancelled(f);
4159	>	checkCompletedWithWrappedCancellationException(src);
4160	>	checkCompletedWithWrappedCancellationException(dep);
4161	>	assertSame(resultOf(src), resultOf(dep));
4162	>	}
4163	>	}}
4164
4165		/**
4166	<	* runAfterBothAsync result completes normally after normal
2008	<	* completion of sources
4166	>	* Minimal completion stages throw UOE for most non-CompletionStage methods
4167		*/
4168	<	public void testRunAfterBothAsyncE() {
4169	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
4170	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
4171	<	Noop r = new Noop();
4172	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
4173	<	f.complete(one);
4174	<	checkIncomplete(g);
4175	<	f2.complete(two);
4176	<	checkCompletedNormally(g, null);
4177	<	assertTrue(r.ran);
4168	>	public void testMinimalCompletionStage_minimality() {
4169	>	if (!testImplementationDetails) return;
4170	>	Function<Method, String> toSignature =
4171	>	method -> method.getName() + Arrays.toString(method.getParameterTypes());
4172	>	Predicate<Method> isNotStatic =
4173	>	method -> (method.getModifiers() & Modifier.STATIC) == 0;
4174	>	List<Method> minimalMethods =
4175	>	Stream.of(Object.class, CompletionStage.class)
4176	>	.flatMap(klazz -> Stream.of(klazz.getMethods()))
4177	>	.filter(isNotStatic)
4178	>	.collect(Collectors.toList());
4179	>	// Methods from CompletableFuture permitted NOT to throw UOE
4180	>	String[] signatureWhitelist = {
4181	>	"newIncompleteFuture[]",
4182	>	"defaultExecutor[]",
4183	>	"minimalCompletionStage[]",
4184	>	"copy[]",
4185	>	};
4186	>	Set<String> permittedMethodSignatures =
4187	>	Stream.concat(minimalMethods.stream().map(toSignature),
4188	>	Stream.of(signatureWhitelist))
4189	>	.collect(Collectors.toSet());
4190	>	List<Method> allMethods = Stream.of(CompletableFuture.class.getMethods())
4191	>	.filter(isNotStatic)
4192	>	.filter(method -> !permittedMethodSignatures.contains(toSignature.apply(method)))
4193	>	.collect(Collectors.toList());
4194	>
4195	>	List<CompletionStage<Integer>> stages = new ArrayList<>();
4196	>	CompletionStage<Integer> min =
4197	>	new CompletableFuture<Integer>().minimalCompletionStage();
4198	>	stages.add(min);
4199	>	stages.add(min.thenApply(x -> x));
4200	>	stages.add(CompletableFuture.completedStage(1));
4201	>	stages.add(CompletableFuture.failedStage(new CFException()));
4202	>
4203	>	List<Method> bugs = new ArrayList<>();
4204	>	for (Method method : allMethods) {
4205	>	Class<?>[] parameterTypes = method.getParameterTypes();
4206	>	Object[] args = new Object[parameterTypes.length];
4207	>	// Manufacture boxed primitives for primitive params
4208	>	for (int i = 0; i < args.length; i++) {
4209	>	Class<?> type = parameterTypes[i];
4210	>	if (parameterTypes[i] == boolean.class)
4211	>	args[i] = false;
4212	>	else if (parameterTypes[i] == int.class)
4213	>	args[i] = 0;
4214	>	else if (parameterTypes[i] == long.class)
4215	>	args[i] = 0L;
4216	>	}
4217	>	for (CompletionStage<Integer> stage : stages) {
4218	>	try {
4219	>	method.invoke(stage, args);
4220	>	bugs.add(method);
4221	>	}
4222	>	catch (java.lang.reflect.InvocationTargetException expected) {
4223	>	if (! (expected.getCause() instanceof UnsupportedOperationException)) {
4224	>	bugs.add(method);
4225	>	// expected.getCause().printStackTrace();
4226	>	}
4227	>	}
4228	>	catch (ReflectiveOperationException bad) { throw new Error(bad); }
4229	>	}
4230	>	}
4231	>	if (!bugs.isEmpty())
4232	>	throw new Error("Methods did not throw UOE: " + bugs);
4233		}
4234
4235		/**
4236	<	* runAfterBothAsync result completes exceptionally after exceptional
4237	<	* completion of source
4236	>	* minimalStage.toCompletableFuture() returns a CompletableFuture that
4237	>	* is completed normally, with the same value, when source is.
4238		*/
4239	<	public void testRunAfterBothAsync2E() {
4240	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
4241	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
4242	<	Noop r = new Noop();
4243	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
4244	<	f.completeExceptionally(new CFException());
4245	<	f2.complete(two);
4246	<	checkCompletedWithWrappedCFException(g);
4247	<
4248	<	r = new Noop();
4249	<	f = new CompletableFuture<Integer>();
4250	<	f2 = new CompletableFuture<Integer>();
4251	<	g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
4252	<	f.complete(one);
4253	<	f2.completeExceptionally(new CFException());
4254	<	checkCompletedWithWrappedCFException(g);
4255	<	}
4256	<
4257	<	/**
4258	<	* runAfterBothAsync result completes exceptionally if action does
4259	<	*/
4260	<	public void testRunAfterBothAsync3E() {
4261	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
4262	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
4263	<	FailingNoop r = new FailingNoop();
4264	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
4265	<	f.complete(one);
4266	<	checkIncomplete(g);
4267	<	f2.complete(two);
4268	<	checkCompletedWithWrappedCFException(g);
4269	<	}
4239	>	public void testMinimalCompletionStage_toCompletableFuture_normalCompletion() {
4240	>	for (boolean createIncomplete : new boolean[] { true, false })
4241	>	for (Integer v1 : new Integer[] { 1, null })
4242	>	{
4243	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4244	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4245	>	if (!createIncomplete) assertTrue(f.complete(v1));
4246	>	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4247	>	if (createIncomplete) {
4248	>	checkIncomplete(f);
4249	>	checkIncomplete(g);
4250	>	assertTrue(f.complete(v1));
4251	>	}
4252	>	checkCompletedNormally(f, v1);
4253	>	checkCompletedNormally(g, v1);
4254	>	}}
4255	>
4256	>	/**
4257	>	* minimalStage.toCompletableFuture() returns a CompletableFuture that
4258	>	* is completed exceptionally when source is.
4259	>	*/
4260	>	public void testMinimalCompletionStage_toCompletableFuture_exceptionalCompletion() {
4261	>	for (boolean createIncomplete : new boolean[] { true, false })
4262	>	{
4263	>	CFException ex = new CFException();
4264	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4265	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4266	>	if (!createIncomplete) f.completeExceptionally(ex);
4267	>	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4268	>	if (createIncomplete) {
4269	>	checkIncomplete(f);
4270	>	checkIncomplete(g);
4271	>	f.completeExceptionally(ex);
4272	>	}
4273	>	checkCompletedExceptionally(f, ex);
4274	>	checkCompletedWithWrappedException(g, ex);
4275	>	}}
4276
4277		/**
4278	<	* runAfterBothAsync result completes exceptionally if either source cancelled
4279	<	*/
4280	<	public void testRunAfterBothAsync4E() {
4281	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
4282	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
4283	<	Noop r = new Noop();
4284	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
4285	<	assertTrue(f.cancel(true));
4286	<	f2.complete(two);
4287	<	checkCompletedWithWrappedCancellationException(g);
4288	<
4289	<	r = new Noop();
4290	<	f = new CompletableFuture<Integer>();
2072	<	f2 = new CompletableFuture<Integer>();
2073	<	g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
2074	<	f.complete(one);
2075	<	assertTrue(f2.cancel(true));
2076	<	checkCompletedWithWrappedCancellationException(g);
2077	<	}
4278	>	* minimalStage.toCompletableFuture() gives mutable CompletableFuture
4279	>	*/
4280	>	public void testMinimalCompletionStage_toCompletableFuture_mutable() {
4281	>	for (Integer v1 : new Integer[] { 1, null })
4282	>	{
4283	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4284	>	CompletionStage minimal = f.minimalCompletionStage();
4285	>	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4286	>	assertTrue(g.complete(v1));
4287	>	checkCompletedNormally(g, v1);
4288	>	checkIncomplete(f);
4289	>	checkIncomplete(minimal.toCompletableFuture());
4290	>	}}
4291
4292		/**
4293	<	* applyToEitherAsync result completes normally after normal
2081	<	* completion of sources
4293	>	* minimalStage.toCompletableFuture().join() awaits completion
4294		*/
4295	<	public void testApplyToEitherAsyncE() {
4296	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
4297	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
4298	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
4299	<	f.complete(one);
4300	<	checkCompletedNormally(g, two);
4301	<
4302	<	f = new CompletableFuture<Integer>();
4303	<	f.complete(one);
4304	<	f2 = new CompletableFuture<Integer>();
4305	<	g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
4306	<	checkCompletedNormally(g, two);
4295	>	public void testMinimalCompletionStage_toCompletableFuture_join() throws Exception {
4296	>	for (boolean createIncomplete : new boolean[] { true, false })
4297	>	for (Integer v1 : new Integer[] { 1, null })
4298	>	{
4299	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4300	>	if (!createIncomplete) assertTrue(f.complete(v1));
4301	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4302	>	if (createIncomplete) assertTrue(f.complete(v1));
4303	>	assertEquals(v1, minimal.toCompletableFuture().join());
4304	>	assertEquals(v1, minimal.toCompletableFuture().get());
4305	>	checkCompletedNormally(minimal.toCompletableFuture(), v1);
4306	>	}}
4307	>
4308	>	/**
4309	>	* Completion of a toCompletableFuture copy of a minimal stage
4310	>	* does not complete its source.
4311	>	*/
4312	>	public void testMinimalCompletionStage_toCompletableFuture_oneWayPropagation() {
4313	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4314	>	CompletionStage<Integer> g = f.minimalCompletionStage();
4315	>	assertTrue(g.toCompletableFuture().complete(1));
4316	>	assertTrue(g.toCompletableFuture().complete(null));
4317	>	assertTrue(g.toCompletableFuture().cancel(true));
4318	>	assertTrue(g.toCompletableFuture().cancel(false));
4319	>	assertTrue(g.toCompletableFuture().completeExceptionally(new CFException()));
4320	>	checkIncomplete(g.toCompletableFuture());
4321	>	f.complete(1);
4322	>	checkCompletedNormally(g.toCompletableFuture(), 1);
4323		}
4324
4325	<	/**
4326	<	* applyToEitherAsync result completes exceptionally after exceptional
4327	<	* completion of source
4328	<	*/
4329	<	public void testApplyToEitherAsync2E() {
4330	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
4331	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
4332	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
4333	<	f.completeExceptionally(new CFException());
4334	<	checkCompletedWithWrappedCFException(g);
4335	<
4336	<	f = new CompletableFuture<Integer>();
4337	<	f2 = new CompletableFuture<Integer>();
4338	<	f2.completeExceptionally(new CFException());
2111	<	g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
2112	<	f.complete(one);
2113	<	checkCompletedWithWrappedCFException(g);
4325	>	/** Demo utility method for external reliable toCompletableFuture */
4326	>	static <T> CompletableFuture<T> toCompletableFuture(CompletionStage<T> stage) {
4327	>	CompletableFuture<T> f = new CompletableFuture<>();
4328	>	stage.handle((T t, Throwable ex) -> {
4329	>	if (ex != null) f.completeExceptionally(ex);
4330	>	else f.complete(t);
4331	>	return null;
4332	>	});
4333	>	return f;
4334	>	}
4335	>
4336	>	/** Demo utility method to join a CompletionStage */
4337	>	static <T> T join(CompletionStage<T> stage) {
4338	>	return toCompletableFuture(stage).join();
4339		}
4340
4341		/**
4342	<	* applyToEitherAsync result completes exceptionally if action does
4343	<	*/
4344	<	public void testApplyToEitherAsync3E() {
4345	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
4346	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
4347	<	FailingFunction r = new FailingFunction();
4348	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, r, new ThreadExecutor());
4349	<	f.complete(one);
4350	<	checkCompletedWithWrappedCFException(g);
4351	<	}
4342	>	* Joining a minimal stage "by hand" works
4343	>	*/
4344	>	public void testMinimalCompletionStage_join_by_hand() {
4345	>	for (boolean createIncomplete : new boolean[] { true, false })
4346	>	for (Integer v1 : new Integer[] { 1, null })
4347	>	{
4348	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4349	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4350	>	CompletableFuture<Integer> g = new CompletableFuture<>();
4351	>	if (!createIncomplete) assertTrue(f.complete(v1));
4352	>	minimal.thenAccept(x -> g.complete(x));
4353	>	if (createIncomplete) assertTrue(f.complete(v1));
4354	>	g.join();
4355	>	checkCompletedNormally(g, v1);
4356	>	checkCompletedNormally(f, v1);
4357	>	assertEquals(v1, join(minimal));
4358	>	}}
4359	>
4360	>	static class Monad {
4361	>	static class ZeroException extends RuntimeException {
4362	>	public ZeroException() { super("monadic zero"); }
4363	>	}
4364	>	// "return", "unit"
4365	>	static <T> CompletableFuture<T> unit(T value) {
4366	>	return completedFuture(value);
4367	>	}
4368	>	// monadic zero ?
4369	>	static <T> CompletableFuture<T> zero() {
4370	>	return failedFuture(new ZeroException());
4371	>	}
4372	>	// >=>
4373	>	static <T,U,V> Function<T, CompletableFuture<V>> compose
4374	>	(Function<T, CompletableFuture<U>> f,
4375	>	Function<U, CompletableFuture<V>> g) {
4376	>	return x -> f.apply(x).thenCompose(g);
4377	>	}
4378
4379	<	/**
4380	<	* applyToEitherAsync result completes exceptionally if either source cancelled
4381	<	*/
4382	<	public void testApplyToEitherAsync4E() {
4383	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
4384	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
4385	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
4386	<	assertTrue(f.cancel(true));
2136	<	checkCompletedWithWrappedCancellationException(g);
4379	>	static void assertZero(CompletableFuture<?> f) {
4380	>	try {
4381	>	f.getNow(null);
4382	>	throw new AssertionError("should throw");
4383	>	} catch (CompletionException success) {
4384	>	assertTrue(success.getCause() instanceof ZeroException);
4385	>	}
4386	>	}
4387
4388	<	f = new CompletableFuture<Integer>();
4389	<	f2 = new CompletableFuture<Integer>();
4390	<	assertTrue(f2.cancel(true));
4391	<	g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
4392	<	checkCompletedWithWrappedCancellationException(g);
4393	<	}
4388	>	static <T> void assertFutureEquals(CompletableFuture<T> f,
4389	>	CompletableFuture<T> g) {
4390	>	T fval = null, gval = null;
4391	>	Throwable fex = null, gex = null;
4392	>
4393	>	try { fval = f.get(); }
4394	>	catch (ExecutionException ex) { fex = ex.getCause(); }
4395	>	catch (Throwable ex) { fex = ex; }
4396	>
4397	>	try { gval = g.get(); }
4398	>	catch (ExecutionException ex) { gex = ex.getCause(); }
4399	>	catch (Throwable ex) { gex = ex; }
4400	>
4401	>	if (fex != null || gex != null)
4402	>	assertSame(fex.getClass(), gex.getClass());
4403	>	else
4404	>	assertEquals(fval, gval);
4405	>	}
4406
4407	<	/**
4408	<	* acceptEitherAsync result completes normally after normal
4409	<	* completion of sources
2148	<	*/
2149	<	public void testAcceptEitherAsyncE() {
2150	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2151	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2152	<	IncAction r = new IncAction();
2153	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2154	<	f.complete(one);
2155	<	checkCompletedNormally(g, null);
2156	<	assertEquals(r.value, 2);
4407	>	static class PlusFuture<T> extends CompletableFuture<T> {
4408	>	AtomicReference<Throwable> firstFailure = new AtomicReference<>(null);
4409	>	}
4410
4411	<	r = new IncAction();
4412	<	f = new CompletableFuture<Integer>();
4413	<	f.complete(one);
4414	<	f2 = new CompletableFuture<Integer>();
4415	<	g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
4416	<	checkCompletedNormally(g, null);
4417	<	assertEquals(r.value, 2);
4411	>	/** Implements "monadic plus". */
4412	>	static <T> CompletableFuture<T> plus(CompletableFuture<? extends T> f,
4413	>	CompletableFuture<? extends T> g) {
4414	>	PlusFuture<T> plus = new PlusFuture<T>();
4415	>	BiConsumer<T, Throwable> action = (T result, Throwable ex) -> {
4416	>	try {
4417	>	if (ex == null) {
4418	>	if (plus.complete(result))
4419	>	if (plus.firstFailure.get() != null)
4420	>	plus.firstFailure.set(null);
4421	>	}
4422	>	else if (plus.firstFailure.compareAndSet(null, ex)) {
4423	>	if (plus.isDone())
4424	>	plus.firstFailure.set(null);
4425	>	}
4426	>	else {
4427	>	// first failure has precedence
4428	>	Throwable first = plus.firstFailure.getAndSet(null);
4429	>
4430	>	// may fail with "Self-suppression not permitted"
4431	>	try { first.addSuppressed(ex); }
4432	>	catch (Exception ignored) {}
4433	>
4434	>	plus.completeExceptionally(first);
4435	>	}
4436	>	} catch (Throwable unexpected) {
4437	>	plus.completeExceptionally(unexpected);
4438	>	}
4439	>	};
4440	>	f.whenComplete(action);
4441	>	g.whenComplete(action);
4442	>	return plus;
4443	>	}
4444		}
4445
4446		/**
4447	<	* acceptEitherAsync result completes exceptionally after exceptional
4448	<	* completion of source
4447	>	* CompletableFuture is an additive monad - sort of.
4448	>	* https://en.wikipedia.org/wiki/Monad_(functional_programming)#Additive_monads
4449		*/
4450	<	public void testAcceptEitherAsync2E() {
4451	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
4452	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
4453	<	IncAction r = new IncAction();
4454	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
4455	<	f.completeExceptionally(new CFException());
4456	<	checkCompletedWithWrappedCFException(g);
4457	<
4458	<	r = new IncAction();
4459	<	f = new CompletableFuture<Integer>();
4460	<	f2 = new CompletableFuture<Integer>();
4461	<	f2.completeExceptionally(new CFException());
4462	<	g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
4463	<	f.complete(one);
4464	<	checkCompletedWithWrappedCFException(g);
4465	<	}
4450	>	public void testAdditiveMonad() throws Throwable {
4451	>	Function<Long, CompletableFuture<Long>> unit = Monad::unit;
4452	>	CompletableFuture<Long> zero = Monad.zero();
4453	>
4454	>	// Some mutually non-commutative functions
4455	>	Function<Long, CompletableFuture<Long>> triple
4456	>	= x -> Monad.unit(3 * x);
4457	>	Function<Long, CompletableFuture<Long>> inc
4458	>	= x -> Monad.unit(x + 1);
4459	>
4460	>	// unit is a right identity: m >>= unit === m
4461	>	Monad.assertFutureEquals(inc.apply(5L).thenCompose(unit),
4462	>	inc.apply(5L));
4463	>	// unit is a left identity: (unit x) >>= f === f x
4464	>	Monad.assertFutureEquals(unit.apply(5L).thenCompose(inc),
4465	>	inc.apply(5L));
4466	>
4467	>	// associativity: (m >>= f) >>= g === m >>= ( \x -> (f x >>= g) )
4468	>	Monad.assertFutureEquals(
4469	>	unit.apply(5L).thenCompose(inc).thenCompose(triple),
4470	>	unit.apply(5L).thenCompose(x -> inc.apply(x).thenCompose(triple)));
4471	>
4472	>	// The case for CompletableFuture as an additive monad is weaker...
4473	>
4474	>	// zero is a monadic zero
4475	>	Monad.assertZero(zero);
4476	>
4477	>	// left zero: zero >>= f === zero
4478	>	Monad.assertZero(zero.thenCompose(inc));
4479	>	// right zero: f >>= (\x -> zero) === zero
4480	>	Monad.assertZero(inc.apply(5L).thenCompose(x -> zero));
4481	>
4482	>	// f plus zero === f
4483	>	Monad.assertFutureEquals(Monad.unit(5L),
4484	>	Monad.plus(Monad.unit(5L), zero));
4485	>	// zero plus f === f
4486	>	Monad.assertFutureEquals(Monad.unit(5L),
4487	>	Monad.plus(zero, Monad.unit(5L)));
4488	>	// zero plus zero === zero
4489	>	Monad.assertZero(Monad.plus(zero, zero));
4490	>	{
4491	>	CompletableFuture<Long> f = Monad.plus(Monad.unit(5L),
4492	>	Monad.unit(8L));
4493	>	// non-determinism
4494	>	assertTrue(f.get() == 5L || f.get() == 8L);
4495	>	}
4496
4497	<	/**
4498	<	* acceptEitherAsync result completes exceptionally if action does
4499	<	*/
4500	<	public void testAcceptEitherAsync3E() {
4501	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
4502	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
4503	<	FailingConsumer r = new FailingConsumer();
4504	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
4505	<	f.complete(one);
4506	<	checkCompletedWithWrappedCFException(g);
4497	>	CompletableFuture<Long> godot = new CompletableFuture<>();
4498	>	// f plus godot === f (doesn't wait for godot)
4499	>	Monad.assertFutureEquals(Monad.unit(5L),
4500	>	Monad.plus(Monad.unit(5L), godot));
4501	>	// godot plus f === f (doesn't wait for godot)
4502	>	Monad.assertFutureEquals(Monad.unit(5L),
4503	>	Monad.plus(godot, Monad.unit(5L)));
4504	>	}
4505	>
4506	>	/** Test long recursive chains of CompletableFutures with cascading completions */
4507	>	@SuppressWarnings("FutureReturnValueIgnored")
4508	>	public void testRecursiveChains() throws Throwable {
4509	>	for (ExecutionMode m : ExecutionMode.values())
4510	>	for (boolean addDeadEnds : new boolean[] { true, false })
4511	>	{
4512	>	final int val = 42;
4513	>	final int n = expensiveTests ? 1_000 : 2;
4514	>	CompletableFuture<Integer> head = new CompletableFuture<>();
4515	>	CompletableFuture<Integer> tail = head;
4516	>	for (int i = 0; i < n; i++) {
4517	>	if (addDeadEnds) m.thenApply(tail, v -> v + 1);
4518	>	tail = m.thenApply(tail, v -> v + 1);
4519	>	if (addDeadEnds) m.applyToEither(tail, tail, v -> v + 1);
4520	>	tail = m.applyToEither(tail, tail, v -> v + 1);
4521	>	if (addDeadEnds) m.thenCombine(tail, tail, (v, w) -> v + 1);
4522	>	tail = m.thenCombine(tail, tail, (v, w) -> v + 1);
4523	>	}
4524	>	head.complete(val);
4525	>	assertEquals(val + 3 * n, (int) tail.join());
4526	>	}}
4527	>
4528	>	/**
4529	>	* A single CompletableFuture with many dependents.
4530	>	* A demo of scalability - runtime is O(n).
4531	>	*/
4532	>	@SuppressWarnings("FutureReturnValueIgnored")
4533	>	public void testManyDependents() throws Throwable {
4534	>	final int n = expensiveTests ? 1_000_000 : 10;
4535	>	final CompletableFuture<Void> head = new CompletableFuture<>();
4536	>	final CompletableFuture<Void> complete = CompletableFuture.completedFuture((Void)null);
4537	>	final AtomicInteger count = new AtomicInteger(0);
4538	>	for (int i = 0; i < n; i++) {
4539	>	head.thenRun(() -> count.getAndIncrement());
4540	>	head.thenAccept(x -> count.getAndIncrement());
4541	>	head.thenApply(x -> count.getAndIncrement());
4542	>
4543	>	head.runAfterBoth(complete, () -> count.getAndIncrement());
4544	>	head.thenAcceptBoth(complete, (x, y) -> count.getAndIncrement());
4545	>	head.thenCombine(complete, (x, y) -> count.getAndIncrement());
4546	>	complete.runAfterBoth(head, () -> count.getAndIncrement());
4547	>	complete.thenAcceptBoth(head, (x, y) -> count.getAndIncrement());
4548	>	complete.thenCombine(head, (x, y) -> count.getAndIncrement());
4549	>
4550	>	head.runAfterEither(new CompletableFuture<Void>(), () -> count.getAndIncrement());
4551	>	head.acceptEither(new CompletableFuture<Void>(), x -> count.getAndIncrement());
4552	>	head.applyToEither(new CompletableFuture<Void>(), x -> count.getAndIncrement());
4553	>	new CompletableFuture<Void>().runAfterEither(head, () -> count.getAndIncrement());
4554	>	new CompletableFuture<Void>().acceptEither(head, x -> count.getAndIncrement());
4555	>	new CompletableFuture<Void>().applyToEither(head, x -> count.getAndIncrement());
4556	>	}
4557	>	head.complete(null);
4558	>	assertEquals(5 * 3 * n, count.get());
4559		}
4560
4561	<	/**
4562	<	* acceptEitherAsync result completes exceptionally if either
4563	<	* source cancelled
4564	<	*/
4565	<	public void testAcceptEitherAsync4E() {
4566	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
4567	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
4568	<	IncAction r = new IncAction();
4569	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
4570	<	assertTrue(f.cancel(true));
4571	<	checkCompletedWithWrappedCancellationException(g);
4561	>	/** ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest tck */
4562	>	@SuppressWarnings("FutureReturnValueIgnored")
4563	>	public void testCoCompletionGarbageRetention() throws Throwable {
4564	>	final int n = expensiveTests ? 1_000_000 : 10;
4565	>	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
4566	>	CompletableFuture<Integer> f;
4567	>	for (int i = 0; i < n; i++) {
4568	>	f = new CompletableFuture<>();
4569	>	f.runAfterEither(incomplete, () -> {});
4570	>	f.complete(null);
4571	>
4572	>	f = new CompletableFuture<>();
4573	>	f.acceptEither(incomplete, x -> {});
4574	>	f.complete(null);
4575	>
4576	>	f = new CompletableFuture<>();
4577	>	f.applyToEither(incomplete, x -> x);
4578	>	f.complete(null);
4579	>
4580	>	f = new CompletableFuture<>();
4581	>	CompletableFuture.anyOf(f, incomplete);
4582	>	f.complete(null);
4583	>	}
4584
4585	<	r = new IncAction();
4586	<	f = new CompletableFuture<Integer>();
4587	<	f2 = new CompletableFuture<Integer>();
4588	<	assertTrue(f2.cancel(true));
4589	<	g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
4590	<	checkCompletedWithWrappedCancellationException(g);
4585	>	for (int i = 0; i < n; i++) {
4586	>	f = new CompletableFuture<>();
4587	>	incomplete.runAfterEither(f, () -> {});
4588	>	f.complete(null);
4589	>
4590	>	f = new CompletableFuture<>();
4591	>	incomplete.acceptEither(f, x -> {});
4592	>	f.complete(null);
4593	>
4594	>	f = new CompletableFuture<>();
4595	>	incomplete.applyToEither(f, x -> x);
4596	>	f.complete(null);
4597	>
4598	>	f = new CompletableFuture<>();
4599	>	CompletableFuture.anyOf(incomplete, f);
4600	>	f.complete(null);
4601	>	}
4602		}
4603
4604		/**
4605	<	* runAfterEitherAsync result completes normally after normal
4606	<	* completion of sources
4607	<	*/
4608	<	public void testRunAfterEitherAsyncE() {
4609	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
4610	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
4611	<	Noop r = new Noop();
4612	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
4613	<	f.complete(one);
4614	<	checkCompletedNormally(g, null);
4615	<	assertTrue(r.ran);
4616	<
4617	<	r = new Noop();
4618	<	f = new CompletableFuture<Integer>();
4619	<	f.complete(one);
4620	<	f2 = new CompletableFuture<Integer>();
4621	<	g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
4622	<	checkCompletedNormally(g, null);
4623	<	assertTrue(r.ran);
4624	<	}
4605	>	* Reproduction recipe for:
4606	>	* 8160402: Garbage retention with CompletableFuture.anyOf
4607	>	* 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
4608	>	*/
4609	>	public void testAnyOfGarbageRetention() throws Throwable {
4610	>	for (Integer v : new Integer[] { 1, null })
4611	>	{
4612	>	final int n = expensiveTests ? 100_000 : 10;
4613	>	CompletableFuture<Integer>[] fs
4614	>	= (CompletableFuture<Integer>[]) new CompletableFuture<?>[100];
4615	>	for (int i = 0; i < fs.length; i++)
4616	>	fs[i] = new CompletableFuture<>();
4617	>	fs[fs.length - 1].complete(v);
4618	>	for (int i = 0; i < n; i++)
4619	>	checkCompletedNormally(CompletableFuture.anyOf(fs), v);
4620	>	}}
4621	>
4622	>	/**
4623	>	* Checks for garbage retention with allOf.
4624	>	*
4625	>	* As of 2016-07, fails with OOME:
4626	>	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledAllOfGarbageRetention tck
4627	>	*/
4628	>	public void testCancelledAllOfGarbageRetention() throws Throwable {
4629	>	final int n = expensiveTests ? 100_000 : 10;
4630	>	CompletableFuture<Integer>[] fs
4631	>	= (CompletableFuture<Integer>[]) new CompletableFuture<?>[100];
4632	>	for (int i = 0; i < fs.length; i++)
4633	>	fs[i] = new CompletableFuture<>();
4634	>	for (int i = 0; i < n; i++)
4635	>	assertTrue(CompletableFuture.allOf(fs).cancel(false));
4636	>	}
4637	>
4638	>	/**
4639	>	* Checks for garbage retention when a dependent future is
4640	>	* cancelled and garbage-collected.
4641	>	* 8161600: Garbage retention when source CompletableFutures are never completed
4642	>	*
4643	>	* As of 2016-07, fails with OOME:
4644	>	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledGarbageRetention tck
4645	>	*/
4646	>	public void testCancelledGarbageRetention() throws Throwable {
4647	>	final int n = expensiveTests ? 100_000 : 10;
4648	>	CompletableFuture<Integer> neverCompleted = new CompletableFuture<>();
4649	>	for (int i = 0; i < n; i++)
4650	>	assertTrue(neverCompleted.thenRun(() -> {}).cancel(true));
4651	>	}
4652	>
4653	>	/**
4654	>	* Checks for garbage retention when MinimalStage.toCompletableFuture()
4655	>	* is invoked many times.
4656	>	* 8161600: Garbage retention when source CompletableFutures are never completed
4657	>	*
4658	>	* As of 2016-07, fails with OOME:
4659	>	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testToCompletableFutureGarbageRetention tck
4660	>	*/
4661	>	public void testToCompletableFutureGarbageRetention() throws Throwable {
4662	>	final int n = expensiveTests ? 900_000 : 10;
4663	>	CompletableFuture<Integer> neverCompleted = new CompletableFuture<>();
4664	>	CompletionStage minimal = neverCompleted.minimalCompletionStage();
4665	>	for (int i = 0; i < n; i++)
4666	>	assertTrue(minimal.toCompletableFuture().cancel(true));
4667	>	}
4668	>
4669	>	//     static <U> U join(CompletionStage<U> stage) {
4670	>	//         CompletableFuture<U> f = new CompletableFuture<>();
4671	>	//         stage.whenComplete((v, ex) -> {
4672	>	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
4673	>	//         });
4674	>	//         return f.join();
4675	>	//     }
4676	>
4677	>	//     static <U> boolean isDone(CompletionStage<U> stage) {
4678	>	//         CompletableFuture<U> f = new CompletableFuture<>();
4679	>	//         stage.whenComplete((v, ex) -> {
4680	>	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
4681	>	//         });
4682	>	//         return f.isDone();
4683	>	//     }
4684	>
4685	>	//     static <U> U join2(CompletionStage<U> stage) {
4686	>	//         return stage.toCompletableFuture().copy().join();
4687	>	//     }
4688	>
4689	>	//     static <U> boolean isDone2(CompletionStage<U> stage) {
4690	>	//         return stage.toCompletableFuture().copy().isDone();
4691	>	//     }
4692	>
4693	>	// For testing default implementations
4694	>	// Only non-default interface methods defined.
4695	>	static final class DelegatedCompletionStage<T> implements CompletionStage<T> {
4696	>	final CompletableFuture<T> cf;
4697	>	DelegatedCompletionStage(CompletableFuture<T> cf) { this.cf = cf; }
4698	>	public CompletableFuture<T> toCompletableFuture() {
4699	>	return cf; }
4700	>	public CompletionStage<Void> thenRun
4701	>	(Runnable action) {
4702	>	return cf.thenRun(action); }
4703	>	public CompletionStage<Void> thenRunAsync
4704	>	(Runnable action) {
4705	>	return cf.thenRunAsync(action); }
4706	>	public CompletionStage<Void> thenRunAsync
4707	>	(Runnable action,
4708	>	Executor executor) {
4709	>	return cf.thenRunAsync(action, executor); }
4710	>	public CompletionStage<Void> thenAccept
4711	>	(Consumer<? super T> action) {
4712	>	return cf.thenAccept(action); }
4713	>	public CompletionStage<Void> thenAcceptAsync
4714	>	(Consumer<? super T> action) {
4715	>	return cf.thenAcceptAsync(action); }
4716	>	public CompletionStage<Void> thenAcceptAsync
4717	>	(Consumer<? super T> action,
4718	>	Executor executor) {
4719	>	return cf.thenAcceptAsync(action, executor); }
4720	>	public <U> CompletionStage<U> thenApply
4721	>	(Function<? super T,? extends U> a) {
4722	>	return cf.thenApply(a); }
4723	>	public <U> CompletionStage<U> thenApplyAsync
4724	>	(Function<? super T,? extends U> fn) {
4725	>	return cf.thenApplyAsync(fn); }
4726	>	public <U> CompletionStage<U> thenApplyAsync
4727	>	(Function<? super T,? extends U> fn,
4728	>	Executor executor) {
4729	>	return cf.thenApplyAsync(fn, executor); }
4730	>	public <U,V> CompletionStage<V> thenCombine
4731	>	(CompletionStage<? extends U> other,
4732	>	BiFunction<? super T,? super U,? extends V> fn) {
4733	>	return cf.thenCombine(other, fn); }
4734	>	public <U,V> CompletionStage<V> thenCombineAsync
4735	>	(CompletionStage<? extends U> other,
4736	>	BiFunction<? super T,? super U,? extends V> fn) {
4737	>	return cf.thenCombineAsync(other, fn); }
4738	>	public <U,V> CompletionStage<V> thenCombineAsync
4739	>	(CompletionStage<? extends U> other,
4740	>	BiFunction<? super T,? super U,? extends V> fn,
4741	>	Executor executor) {
4742	>	return cf.thenCombineAsync(other, fn, executor); }
4743	>	public <U> CompletionStage<Void> thenAcceptBoth
4744	>	(CompletionStage<? extends U> other,
4745	>	BiConsumer<? super T, ? super U> action) {
4746	>	return cf.thenAcceptBoth(other, action); }
4747	>	public <U> CompletionStage<Void> thenAcceptBothAsync
4748	>	(CompletionStage<? extends U> other,
4749	>	BiConsumer<? super T, ? super U> action) {
4750	>	return cf.thenAcceptBothAsync(other, action); }
4751	>	public <U> CompletionStage<Void> thenAcceptBothAsync
4752	>	(CompletionStage<? extends U> other,
4753	>	BiConsumer<? super T, ? super U> action,
4754	>	Executor executor) {
4755	>	return cf.thenAcceptBothAsync(other, action, executor); }
4756	>	public CompletionStage<Void> runAfterBoth
4757	>	(CompletionStage<?> other,
4758	>	Runnable action) {
4759	>	return cf.runAfterBoth(other, action); }
4760	>	public CompletionStage<Void> runAfterBothAsync
4761	>	(CompletionStage<?> other,
4762	>	Runnable action) {
4763	>	return cf.runAfterBothAsync(other, action); }
4764	>	public CompletionStage<Void> runAfterBothAsync
4765	>	(CompletionStage<?> other,
4766	>	Runnable action,
4767	>	Executor executor) {
4768	>	return cf.runAfterBothAsync(other, action, executor); }
4769	>	public <U> CompletionStage<U> applyToEither
4770	>	(CompletionStage<? extends T> other,
4771	>	Function<? super T, U> fn) {
4772	>	return cf.applyToEither(other, fn); }
4773	>	public <U> CompletionStage<U> applyToEitherAsync
4774	>	(CompletionStage<? extends T> other,
4775	>	Function<? super T, U> fn) {
4776	>	return cf.applyToEitherAsync(other, fn); }
4777	>	public <U> CompletionStage<U> applyToEitherAsync
4778	>	(CompletionStage<? extends T> other,
4779	>	Function<? super T, U> fn,
4780	>	Executor executor) {
4781	>	return cf.applyToEitherAsync(other, fn, executor); }
4782	>	public CompletionStage<Void> acceptEither
4783	>	(CompletionStage<? extends T> other,
4784	>	Consumer<? super T> action) {
4785	>	return cf.acceptEither(other, action); }
4786	>	public CompletionStage<Void> acceptEitherAsync
4787	>	(CompletionStage<? extends T> other,
4788	>	Consumer<? super T> action) {
4789	>	return cf.acceptEitherAsync(other, action); }
4790	>	public CompletionStage<Void> acceptEitherAsync
4791	>	(CompletionStage<? extends T> other,
4792	>	Consumer<? super T> action,
4793	>	Executor executor) {
4794	>	return cf.acceptEitherAsync(other, action, executor); }
4795	>	public CompletionStage<Void> runAfterEither
4796	>	(CompletionStage<?> other,
4797	>	Runnable action) {
4798	>	return cf.runAfterEither(other, action); }
4799	>	public CompletionStage<Void> runAfterEitherAsync
4800	>	(CompletionStage<?> other,
4801	>	Runnable action) {
4802	>	return cf.runAfterEitherAsync(other, action); }
4803	>	public CompletionStage<Void> runAfterEitherAsync
4804	>	(CompletionStage<?> other,
4805	>	Runnable action,
4806	>	Executor executor) {
4807	>	return cf.runAfterEitherAsync(other, action, executor); }
4808	>	public <U> CompletionStage<U> thenCompose
4809	>	(Function<? super T, ? extends CompletionStage<U>> fn) {
4810	>	return cf.thenCompose(fn); }
4811	>	public <U> CompletionStage<U> thenComposeAsync
4812	>	(Function<? super T, ? extends CompletionStage<U>> fn) {
4813	>	return cf.thenComposeAsync(fn); }
4814	>	public <U> CompletionStage<U> thenComposeAsync
4815	>	(Function<? super T, ? extends CompletionStage<U>> fn,
4816	>	Executor executor) {
4817	>	return cf.thenComposeAsync(fn, executor); }
4818	>	public <U> CompletionStage<U> handle
4819	>	(BiFunction<? super T, Throwable, ? extends U> fn) {
4820	>	return cf.handle(fn); }
4821	>	public <U> CompletionStage<U> handleAsync
4822	>	(BiFunction<? super T, Throwable, ? extends U> fn) {
4823	>	return cf.handleAsync(fn); }
4824	>	public <U> CompletionStage<U> handleAsync
4825	>	(BiFunction<? super T, Throwable, ? extends U> fn,
4826	>	Executor executor) {
4827	>	return cf.handleAsync(fn, executor); }
4828	>	public CompletionStage<T> whenComplete
4829	>	(BiConsumer<? super T, ? super Throwable> action) {
4830	>	return cf.whenComplete(action); }
4831	>	public CompletionStage<T> whenCompleteAsync
4832	>	(BiConsumer<? super T, ? super Throwable> action) {
4833	>	return cf.whenCompleteAsync(action); }
4834	>	public CompletionStage<T> whenCompleteAsync
4835	>	(BiConsumer<? super T, ? super Throwable> action,
4836	>	Executor executor) {
4837	>	return cf.whenCompleteAsync(action, executor); }
4838	>	public CompletionStage<T> exceptionally
4839	>	(Function<Throwable, ? extends T> fn) {
4840	>	return cf.exceptionally(fn); }
4841	>	}
4842	>
4843	>	/**
4844	>	* default-implemented exceptionallyAsync action is not invoked when
4845	>	* source completes normally, and source result is propagated
4846	>	*/
4847	>	public void testDefaultExceptionallyAsync_normalCompletion() {
4848	>	for (boolean createIncomplete : new boolean[] { true, false })
4849	>	for (Integer v1 : new Integer[] { 1, null })
4850	>	{
4851	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
4852	>	final DelegatedCompletionStage<Integer> d =
4853	>	new DelegatedCompletionStage<Integer>(f);
4854	>	if (!createIncomplete) assertTrue(f.complete(v1));
4855	>	final CompletionStage<Integer> g = d.exceptionallyAsync
4856	>	((Throwable t) -> {
4857	>	threadFail("should not be called");
4858	>	return null;            // unreached
4859	>	});
4860	>	if (createIncomplete) assertTrue(f.complete(v1));
4861	>
4862	>	checkCompletedNormally(g.toCompletableFuture(), v1);
4863	>	}}
4864	>
4865	>	/**
4866	>	* default-implemented exceptionallyAsync action completes with
4867	>	* function value on source exception
4868	>	*/
4869	>	public void testDefaultExceptionallyAsync_exceptionalCompletion() {
4870	>	for (boolean createIncomplete : new boolean[] { true, false })
4871	>	for (Integer v1 : new Integer[] { 1, null })
4872	>	{
4873	>	final AtomicInteger a = new AtomicInteger(0);
4874	>	final CFException ex = new CFException();
4875	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
4876	>	final DelegatedCompletionStage<Integer> d =
4877	>	new DelegatedCompletionStage<Integer>(f);
4878	>	if (!createIncomplete) f.completeExceptionally(ex);
4879	>	final CompletionStage<Integer> g = d.exceptionallyAsync
4880	>	((Throwable t) -> {
4881	>	threadAssertSame(t, ex);
4882	>	a.getAndIncrement();
4883	>	return v1;
4884	>	});
4885	>	if (createIncomplete) f.completeExceptionally(ex);
4886	>
4887	>	checkCompletedNormally(g.toCompletableFuture(), v1);
4888	>	assertEquals(1, a.get());
4889	>	}}
4890	>
4891	>	/**
4892	>	* Under default implementation, if an "exceptionally action"
4893	>	* throws an exception, it completes exceptionally with that
4894	>	* exception
4895	>	*/
4896	>	public void testDefaultExceptionallyAsync_exceptionalCompletionActionFailed() {
4897	>	for (boolean createIncomplete : new boolean[] { true, false })
4898	>	{
4899	>	final AtomicInteger a = new AtomicInteger(0);
4900	>	final CFException ex1 = new CFException();
4901	>	final CFException ex2 = new CFException();
4902	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
4903	>	final DelegatedCompletionStage<Integer> d =
4904	>	new DelegatedCompletionStage<Integer>(f);
4905	>	if (!createIncomplete) f.completeExceptionally(ex1);
4906	>	final CompletionStage<Integer> g = d.exceptionallyAsync
4907	>	((Throwable t) -> {
4908	>	threadAssertSame(t, ex1);
4909	>	a.getAndIncrement();
4910	>	throw ex2;
4911	>	});
4912	>	if (createIncomplete) f.completeExceptionally(ex1);
4913	>
4914	>	checkCompletedWithWrappedException(g.toCompletableFuture(), ex2);
4915	>	checkCompletedExceptionally(f, ex1);
4916	>	checkCompletedExceptionally(d.toCompletableFuture(), ex1);
4917	>	assertEquals(1, a.get());
4918	>	}}
4919
4920		/**
4921	<	* runAfterEitherAsync result completes exceptionally after exceptional
4921	>	* default exceptionallyCompose result completes normally after normal
4922		* completion of source
4923		*/
4924	<	public void testRunAfterEitherAsync2E() {
4925	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
4926	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
4927	<	Noop r = new Noop();
4928	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
4929	<	f.completeExceptionally(new CFException());
4930	<	checkCompletedWithWrappedCFException(g);
4931	<
4932	<	r = new Noop();
4933	<	f = new CompletableFuture<Integer>();
4934	<	f2 = new CompletableFuture<Integer>();
4935	<	f2.completeExceptionally(new CFException());
4936	<	g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
4937	<	f.complete(one);
4938	<	checkCompletedWithWrappedCFException(g);
4939	<	}
4940	<
4941	<	/**
4942	<	* runAfterEitherAsync result completes exceptionally if action does
4943	<	*/
4944	<	public void testRunAfterEitherAsync3E() {
4945	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
4946	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
4947	<	FailingNoop r = new FailingNoop();
4948	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
4949	<	f.complete(one);
4950	<	checkCompletedWithWrappedCFException(g);
4951	<	}
4952	<
4953	<	/**
4954	<	* runAfterEitherAsync result completes exceptionally if either
4955	<	* source cancelled
4956	<	*/
4957	<	public void testRunAfterEitherAsync4E() {
4958	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
4959	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
4960	<	Noop r = new Noop();
4961	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
4962	<	assertTrue(f.cancel(true));
4963	<	checkCompletedWithWrappedCancellationException(g);
4964	<
4965	<	r = new Noop();
4966	<	f = new CompletableFuture<Integer>();
4967	<	f2 = new CompletableFuture<Integer>();
4968	<	assertTrue(f2.cancel(true));
4969	<	g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
4970	<	checkCompletedWithWrappedCancellationException(g);
4971	<	}
4924	>	public void testDefaultExceptionallyCompose_normalCompletion() {
4925	>	for (boolean createIncomplete : new boolean[] { true, false })
4926	>	for (Integer v1 : new Integer[] { 1, null })
4927	>	{
4928	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
4929	>	final ExceptionalCompletableFutureFunction r =
4930	>	new ExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4931	>	final DelegatedCompletionStage<Integer> d =
4932	>	new DelegatedCompletionStage<Integer>(f);
4933	>	if (!createIncomplete) assertTrue(f.complete(v1));
4934	>	final CompletionStage<Integer> g = d.exceptionallyCompose(r);
4935	>	if (createIncomplete) assertTrue(f.complete(v1));
4936	>
4937	>	checkCompletedNormally(f, v1);
4938	>	checkCompletedNormally(g.toCompletableFuture(), v1);
4939	>	r.assertNotInvoked();
4940	>	}}
4941	>
4942	>	/**
4943	>	* default-implemented exceptionallyCompose result completes
4944	>	* normally after exceptional completion of source
4945	>	*/
4946	>	public void testDefaultExceptionallyCompose_exceptionalCompletion() {
4947	>	for (boolean createIncomplete : new boolean[] { true, false })
4948	>	{
4949	>	final CFException ex = new CFException();
4950	>	final ExceptionalCompletableFutureFunction r =
4951	>	new ExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4952	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
4953	>	final DelegatedCompletionStage<Integer> d =
4954	>	new DelegatedCompletionStage<Integer>(f);
4955	>	if (!createIncomplete) f.completeExceptionally(ex);
4956	>	final CompletionStage<Integer> g = d.exceptionallyCompose(r);
4957	>	if (createIncomplete) f.completeExceptionally(ex);
4958	>
4959	>	checkCompletedExceptionally(f, ex);
4960	>	checkCompletedNormally(g.toCompletableFuture(), r.value);
4961	>	r.assertInvoked();
4962	>	}}
4963	>
4964	>	/**
4965	>	* default-implemented exceptionallyCompose completes
4966	>	* exceptionally on exception if action does
4967	>	*/
4968	>	public void testDefaultExceptionallyCompose_actionFailed() {
4969	>	for (boolean createIncomplete : new boolean[] { true, false })
4970	>	for (Integer v1 : new Integer[] { 1, null })
4971	>	{
4972	>	final CFException ex = new CFException();
4973	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
4974	>	final FailingExceptionalCompletableFutureFunction r
4975	>	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4976	>	final DelegatedCompletionStage<Integer> d =
4977	>	new DelegatedCompletionStage<Integer>(f);
4978	>	if (!createIncomplete) f.completeExceptionally(ex);
4979	>	final CompletionStage<Integer> g = d.exceptionallyCompose(r);
4980	>	if (createIncomplete) f.completeExceptionally(ex);
4981	>
4982	>	checkCompletedExceptionally(f, ex);
4983	>	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
4984	>	r.assertInvoked();
4985	>	}}
4986
4987		/**
4988	<	* thenCompse result completes normally after normal completion of source
2297	<	*/
2298	<	public void testThenComposeAsyncE() {
2299	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2300	<	CompletableFutureInc r = new CompletableFutureInc();
2301	<	CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
2302	<	f.complete(one);
2303	<	checkCompletedNormally(g, two);
2304	<	}
2305	<
2306	<	/**
2307	<	* thenComposeAsync result completes exceptionally after exceptional
4988	>	* default exceptionallyComposeAsync result completes normally after normal
4989		* completion of source
4990		*/
4991	<	public void testThenComposeAsync2E() {
4992	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
4993	<	CompletableFutureInc r = new CompletableFutureInc();
4994	<	CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
4995	<	f.completeExceptionally(new CFException());
4996	<	checkCompletedWithWrappedCFException(g);
4997	<	}
4998	<
4999	<	/**
5000	<	* thenComposeAsync result completes exceptionally if action does
5001	<	*/
5002	<	public void testThenComposeAsync3E() {
5003	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
5004	<	FailingCompletableFutureFunction r = new FailingCompletableFutureFunction();
5005	<	CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
5006	<	f.complete(one);
5007	<	checkCompletedWithWrappedCFException(g);
5008	<	}
5009	<
5010	<	/**
5011	<	* thenComposeAsync result completes exceptionally if source cancelled
5012	<	*/
5013	<	public void testThenComposeAsync4E() {
5014	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
5015	<	CompletableFutureInc r = new CompletableFutureInc();
5016	<	CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
5017	<	assertTrue(f.cancel(true));
5018	<	checkCompletedWithWrappedCancellationException(g);
5019	<	}
5020	<
5021	<	// other static methods
4991	>	public void testDefaultExceptionallyComposeAsync_normalCompletion() {
4992	>	for (boolean createIncomplete : new boolean[] { true, false })
4993	>	for (Integer v1 : new Integer[] { 1, null })
4994	>	{
4995	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
4996	>	final ExceptionalCompletableFutureFunction r =
4997	>	new ExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
4998	>	final DelegatedCompletionStage<Integer> d =
4999	>	new DelegatedCompletionStage<Integer>(f);
5000	>	if (!createIncomplete) assertTrue(f.complete(v1));
5001	>	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
5002	>	if (createIncomplete) assertTrue(f.complete(v1));
5003	>
5004	>	checkCompletedNormally(f, v1);
5005	>	checkCompletedNormally(g.toCompletableFuture(), v1);
5006	>	r.assertNotInvoked();
5007	>	}}
5008	>
5009	>	/**
5010	>	* default-implemented exceptionallyComposeAsync result completes
5011	>	* normally after exceptional completion of source
5012	>	*/
5013	>	public void testDefaultExceptionallyComposeAsync_exceptionalCompletion() {
5014	>	for (boolean createIncomplete : new boolean[] { true, false })
5015	>	{
5016	>	final CFException ex = new CFException();
5017	>	final ExceptionalCompletableFutureFunction r =
5018	>	new ExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
5019	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
5020	>	final DelegatedCompletionStage<Integer> d =
5021	>	new DelegatedCompletionStage<Integer>(f);
5022	>	if (!createIncomplete) f.completeExceptionally(ex);
5023	>	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
5024	>	if (createIncomplete) f.completeExceptionally(ex);
5025	>
5026	>	checkCompletedExceptionally(f, ex);
5027	>	checkCompletedNormally(g.toCompletableFuture(), r.value);
5028	>	r.assertInvoked();
5029	>	}}
5030	>
5031	>	/**
5032	>	* default-implemented exceptionallyComposeAsync completes
5033	>	* exceptionally on exception if action does
5034	>	*/
5035	>	public void testDefaultExceptionallyComposeAsync_actionFailed() {
5036	>	for (boolean createIncomplete : new boolean[] { true, false })
5037	>	for (Integer v1 : new Integer[] { 1, null })
5038	>	{
5039	>	final CFException ex = new CFException();
5040	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
5041	>	final FailingExceptionalCompletableFutureFunction r
5042	>	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
5043	>	final DelegatedCompletionStage<Integer> d =
5044	>	new DelegatedCompletionStage<Integer>(f);
5045	>	if (!createIncomplete) f.completeExceptionally(ex);
5046	>	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
5047	>	if (createIncomplete) f.completeExceptionally(ex);
5048	>
5049	>	checkCompletedExceptionally(f, ex);
5050	>	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
5051	>	r.assertInvoked();
5052	>	}}
5053
2342	–	/**
2343	–	* allOf(no component futures) returns a future completed normally
2344	–	* with the value null
2345	–	*/
2346	–	public void testAllOf_empty() throws Exception {
2347	–	CompletableFuture<?> f = CompletableFuture.allOf();
2348	–	checkCompletedNormally(f, null);
2349	–	}
5054
5055		/**
5056	<	* allOf returns a future completed when all components complete
5057	<	*/
2354	<	public void testAllOf() throws Exception {
2355	<	for (int k = 1; k < 20; ++k) {
2356	<	CompletableFuture[] fs = new CompletableFuture[k];
2357	<	for (int i = 0; i < k; ++i)
2358	<	fs[i] = new CompletableFuture<Integer>();
2359	<	CompletableFuture<?> f = CompletableFuture.allOf(fs);
2360	<	for (int i = 0; i < k; ++i) {
2361	<	checkIncomplete(f);
2362	<	fs[i].complete(one);
2363	<	}
2364	<	assertTrue(f.isDone());
2365	<	assertFalse(f.isCancelled());
2366	<	}
2367	<	}
2368	<
2369	<	/**
2370	<	* anyOf(no component futures) returns an incomplete future
2371	<	*/
2372	<	public void testAnyOf_empty() throws Exception {
2373	<	CompletableFuture<?> f = CompletableFuture.anyOf();
2374	<	checkIncomplete(f);
2375	<	}
2376	<
2377	<	/**
2378	<	* allOf returns a future completed when any components complete
2379	<	*/
2380	<	public void testAnyOf() throws Exception {
2381	<	for (int k = 1; k < 20; ++k) {
2382	<	CompletableFuture[] fs = new CompletableFuture[k];
2383	<	for (int i = 0; i < k; ++i)
2384	<	fs[i] = new CompletableFuture<Integer>();
2385	<	CompletableFuture<?> f = CompletableFuture.anyOf(fs);
2386	<	checkIncomplete(f);
2387	<	for (int i = 0; i < k; ++i) {
2388	<	fs[i].complete(one);
2389	<	assertTrue(f.isDone());
2390	<	}
2391	<	}
2392	<	}
2393	<
2394	<	/**
2395	<	* Completion methods throw NullPointerException with null arguments
5056	>	* default exceptionallyComposeAsync result completes normally after normal
5057	>	* completion of source
5058		*/
5059	<	public void testNPE() {
5060	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
5061	<	CompletableFuture<Integer> g = new CompletableFuture<Integer>();
5062	<	CompletableFuture h;
5063	<	try { h = f.thenApply(null); } catch (NullPointerException ok) {}
5064	<	try { h = f.thenAccept(null); } catch (NullPointerException ok) {}
5065	<	try { h = f.thenRun(null); } catch (NullPointerException ok) {}
5066	<	try { h = f.thenCombine(g, null); } catch (NullPointerException ok) {}
5067	<	try { h = f.thenCombine(null, null); } catch (NullPointerException ok) {}
5068	<	try { h = f.applyToEither(g, null); } catch (NullPointerException ok) {}
5069	<	try { h = f.applyToEither(null, null); } catch (NullPointerException ok) {}
5070	<	try { h = f.thenAcceptBoth(g, null); } catch (NullPointerException ok) {}
5071	<	try { h = f.thenAcceptBoth(null, null); } catch (NullPointerException ok) {}
5072	<	try { h = f.runAfterEither(g, null); } catch (NullPointerException ok) {}
5073	<	try { h = f.runAfterEither(null, null); } catch (NullPointerException ok) {}
5074	<	try { h = f.runAfterBoth(g, null); } catch (NullPointerException ok) {}
5075	<	try { h = f.runAfterBoth(null, null); } catch (NullPointerException ok) {}
5076	<	try { h = f.exceptionally(null); } catch (NullPointerException ok) {}
5077	<	try { h = f.handle(null); } catch (NullPointerException ok) {}
5078	<	try { h = f.thenCompose(null); } catch (NullPointerException ok) {}
5079	<
5080	<	try { h = f.thenApplyAsync(null); } catch (NullPointerException ok) {}
5081	<	try { h = f.thenAcceptAsync(null); } catch (NullPointerException ok) {}
5082	<	try { h = f.thenRunAsync(null); } catch (NullPointerException ok) {}
5083	<	try { h = f.thenCombineAsync(g, null); } catch (NullPointerException ok) {}
5084	<	try { h = f.thenCombineAsync(null, null); } catch (NullPointerException ok) {}
5085	<	try { h = f.applyToEitherAsync(g, null); } catch (NullPointerException ok) {}
5086	<	try { h = f.applyToEitherAsync(null, null); } catch (NullPointerException ok) {}
5087	<	try { h = f.thenAcceptBothAsync(g, null); } catch (NullPointerException ok) {}
5088	<	try { h = f.thenAcceptBothAsync(null, null); } catch (NullPointerException ok) {}
5089	<	try { h = f.runAfterEitherAsync(g, null); } catch (NullPointerException ok) {}
5090	<	try { h = f.runAfterEitherAsync(null, null); } catch (NullPointerException ok) {}
5091	<	try { h = f.runAfterBothAsync(g, null); } catch (NullPointerException ok) {}
5092	<	try { h = f.runAfterBothAsync(null, null); } catch (NullPointerException ok) {}
5093	<
5094	<	}
5095	<
5059	>	public void testDefaultExceptionallyComposeAsyncExecutor_normalCompletion() {
5060	>	for (boolean createIncomplete : new boolean[] { true, false })
5061	>	for (Integer v1 : new Integer[] { 1, null })
5062	>	{
5063	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
5064	>	final ExceptionalCompletableFutureFunction r =
5065	>	new ExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
5066	>	final DelegatedCompletionStage<Integer> d =
5067	>	new DelegatedCompletionStage<Integer>(f);
5068	>	if (!createIncomplete) assertTrue(f.complete(v1));
5069	>	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r, new ThreadExecutor());
5070	>	if (createIncomplete) assertTrue(f.complete(v1));
5071	>
5072	>	checkCompletedNormally(f, v1);
5073	>	checkCompletedNormally(g.toCompletableFuture(), v1);
5074	>	r.assertNotInvoked();
5075	>	}}
5076	>
5077	>	/**
5078	>	* default-implemented exceptionallyComposeAsync result completes
5079	>	* normally after exceptional completion of source
5080	>	*/
5081	>	public void testDefaultExceptionallyComposeAsyncExecutor_exceptionalCompletion() {
5082	>	for (boolean createIncomplete : new boolean[] { true, false })
5083	>	{
5084	>	final CFException ex = new CFException();
5085	>	final ExceptionalCompletableFutureFunction r =
5086	>	new ExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
5087	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
5088	>	final DelegatedCompletionStage<Integer> d =
5089	>	new DelegatedCompletionStage<Integer>(f);
5090	>	if (!createIncomplete) f.completeExceptionally(ex);
5091	>	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r, new ThreadExecutor());
5092	>	if (createIncomplete) f.completeExceptionally(ex);
5093	>
5094	>	checkCompletedExceptionally(f, ex);
5095	>	checkCompletedNormally(g.toCompletableFuture(), r.value);
5096	>	r.assertInvoked();
5097	>	}}
5098	>
5099	>	/**
5100	>	* default-implemented exceptionallyComposeAsync completes
5101	>	* exceptionally on exception if action does
5102	>	*/
5103	>	public void testDefaultExceptionallyComposeAsyncExecutor_actionFailed() {
5104	>	for (boolean createIncomplete : new boolean[] { true, false })
5105	>	for (Integer v1 : new Integer[] { 1, null })
5106	>	{
5107	>	final CFException ex = new CFException();
5108	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
5109	>	final FailingExceptionalCompletableFutureFunction r
5110	>	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
5111	>	final DelegatedCompletionStage<Integer> d =
5112	>	new DelegatedCompletionStage<Integer>(f);
5113	>	if (!createIncomplete) f.completeExceptionally(ex);
5114	>	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r, new ThreadExecutor());
5115	>	if (createIncomplete) f.completeExceptionally(ex);
5116	>
5117	>	checkCompletedExceptionally(f, ex);
5118	>	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
5119	>	r.assertInvoked();
5120	>	}}
5121
5122		}

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