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Comparing jsr166/src/test/tck/CompletableFutureTest.java (file contents):
Revision 1.36 by jsr166, Sun Jun 1 23:12:45 2014 UTC vs.
Revision 1.222 by jsr166, Mon Dec 16 21:18:49 2019 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;
23	<	import static java.util.concurrent.TimeUnit.SECONDS;
24	<	import java.util.*;
25	<	import java.util.function.Supplier;
26	<	import java.util.function.Consumer;
36	>	import java.util.concurrent.atomic.AtomicReference;
37		import java.util.function.BiConsumer;
28	–	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 42 | Line 58 | public class CompletableFutureTest exten
58		void checkIncomplete(CompletableFuture<?> f) {
59		assertFalse(f.isDone());
60		assertFalse(f.isCancelled());
61	<	assertTrue(f.toString().contains("[Not completed]"));
61	>	assertTrue(f.toString().matches(".*\\[.*Not completed.*\\]"));
62	>
63	>	Object result = null;
64		try {
65	<	assertNull(f.getNow(null));
65	>	result = f.getNow(null);
66		} catch (Throwable fail) { threadUnexpectedException(fail); }
67	+	assertNull(result);
68	+
69		try {
70	<	f.get(0L, SECONDS);
70	>	f.get(randomExpiredTimeout(), randomTimeUnit());
71		shouldThrow();
72		}
73		catch (TimeoutException success) {}
74		catch (Throwable fail) { threadUnexpectedException(fail); }
75		}
76
77	<	<T> void checkCompletedNormally(CompletableFuture<T> f, T value) {
78	<	try {
79	<	assertEquals(value, f.get(LONG_DELAY_MS, MILLISECONDS));
80	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
81	<	try {
82	<	assertEquals(value, f.join());
83	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
64	<	try {
65	<	assertEquals(value, f.getNow(null));
66	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
77	>	<T> void checkCompletedNormally(CompletableFuture<T> f, T expectedValue) {
78	>	checkTimedGet(f, expectedValue);
79	>
80	>	assertEquals(expectedValue, f.join());
81	>	assertEquals(expectedValue, f.getNow(null));
82	>
83	>	T result = null;
84		try {
85	<	assertEquals(value, f.get());
85	>	result = f.get();
86		} catch (Throwable fail) { threadUnexpectedException(fail); }
87	+	assertEquals(expectedValue, result);
88	+
89		assertTrue(f.isDone());
90		assertFalse(f.isCancelled());
91		assertFalse(f.isCompletedExceptionally());
92	<	assertTrue(f.toString().contains("[Completed normally]"));
92	>	assertTrue(f.toString().matches(".*\\[.*Completed normally.*\\]"));
93		}
94
95	<	void checkCompletedWithWrappedCFException(CompletableFuture<?> f) {
96	<	try {
97	<	f.get(LONG_DELAY_MS, MILLISECONDS);
98	<	shouldThrow();
99	<	} catch (ExecutionException success) {
100	<	assertTrue(success.getCause() instanceof CFException);
101	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
102	<	try {
84	<	f.join();
85	<	shouldThrow();
86	<	} catch (CompletionException success) {
87	<	assertTrue(success.getCause() instanceof CFException);
88	<	}
89	<	try {
90	<	f.getNow(null);
91	<	shouldThrow();
92	<	} catch (CompletionException success) {
93	<	assertTrue(success.getCause() instanceof CFException);
94	<	}
95	<	try {
96	<	f.get();
97	<	shouldThrow();
98	<	} catch (ExecutionException success) {
99	<	assertTrue(success.getCause() instanceof CFException);
100	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
101	<	assertTrue(f.isDone());
102	<	assertFalse(f.isCancelled());
103	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
95	>	/**
96	>	* Returns the "raw" internal exceptional completion of f,
97	>	* without any additional wrapping with CompletionException.
98	>	*/
99	>	Throwable exceptionalCompletion(CompletableFuture<?> f) {
100	>	// handle (and whenComplete and exceptionally) can distinguish
101	>	// between "direct" and "wrapped" exceptional completion
102	>	return f.handle((u, t) -> t).join();
103		}
104
105	<	void checkCompletedWithWrappedCFException(CompletableFuture<?> f,
106	<	CFException ex) {
105	>	void checkCompletedExceptionally(CompletableFuture<?> f,
106	>	boolean wrapped,
107	>	Consumer<Throwable> checker) {
108	>	Throwable cause = exceptionalCompletion(f);
109	>	if (wrapped) {
110	>	assertTrue(cause instanceof CompletionException);
111	>	cause = cause.getCause();
112	>	}
113	>	checker.accept(cause);
114	>
115	>	long startTime = System.nanoTime();
116		try {
117		f.get(LONG_DELAY_MS, MILLISECONDS);
118		shouldThrow();
119		} catch (ExecutionException success) {
120	<	assertSame(ex, success.getCause());
120	>	assertSame(cause, success.getCause());
121		} catch (Throwable fail) { threadUnexpectedException(fail); }
122	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
123	+
124		try {
125		f.join();
126		shouldThrow();
127		} catch (CompletionException success) {
128	<	assertSame(ex, success.getCause());
129	<	}
128	>	assertSame(cause, success.getCause());
129	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
130	>
131		try {
132		f.getNow(null);
133		shouldThrow();
134		} catch (CompletionException success) {
135	<	assertSame(ex, success.getCause());
136	<	}
135	>	assertSame(cause, success.getCause());
136	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
137	>
138		try {
139		f.get();
140		shouldThrow();
141		} catch (ExecutionException success) {
142	<	assertSame(ex, success.getCause());
142	>	assertSame(cause, success.getCause());
143		} catch (Throwable fail) { threadUnexpectedException(fail); }
144	<	assertTrue(f.isDone());
144	>
145		assertFalse(f.isCancelled());
146	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
146	>	assertTrue(f.isDone());
147	>	assertTrue(f.isCompletedExceptionally());
148	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
149	>	}
150	>
151	>	void checkCompletedWithWrappedCFException(CompletableFuture<?> f) {
152	>	checkCompletedExceptionally(f, true,
153	>	t -> assertTrue(t instanceof CFException));
154	>	}
155	>
156	>	void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) {
157	>	checkCompletedExceptionally(f, true,
158	>	t -> assertTrue(t instanceof CancellationException));
159	>	}
160	>
161	>	void checkCompletedWithTimeoutException(CompletableFuture<?> f) {
162	>	checkCompletedExceptionally(f, false,
163	>	t -> assertTrue(t instanceof TimeoutException));
164	>	}
165	>
166	>	void checkCompletedWithWrappedException(CompletableFuture<?> f,
167	>	Throwable ex) {
168	>	checkCompletedExceptionally(f, true, t -> assertSame(t, ex));
169	>	}
170	>
171	>	void checkCompletedExceptionally(CompletableFuture<?> f, Throwable ex) {
172	>	checkCompletedExceptionally(f, false, t -> assertSame(t, ex));
173		}
174
175		void checkCancelled(CompletableFuture<?> f) {
176	+	long startTime = System.nanoTime();
177		try {
178		f.get(LONG_DELAY_MS, MILLISECONDS);
179		shouldThrow();
180		} catch (CancellationException success) {
181		} catch (Throwable fail) { threadUnexpectedException(fail); }
182	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
183	+
184		try {
185		f.join();
186		shouldThrow();
#	Line 153 | Line 194 | public class CompletableFutureTest exten
194		shouldThrow();
195		} catch (CancellationException success) {
196		} catch (Throwable fail) { threadUnexpectedException(fail); }
156	–	assertTrue(f.isDone());
157	–	assertTrue(f.isCompletedExceptionally());
158	–	assertTrue(f.isCancelled());
159	–	assertTrue(f.toString().contains("[Completed exceptionally]"));
160	–	}
197
198	<	void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) {
199	<	try {
164	<	f.get(LONG_DELAY_MS, MILLISECONDS);
165	<	shouldThrow();
166	<	} catch (ExecutionException success) {
167	<	assertTrue(success.getCause() instanceof CancellationException);
168	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
169	<	try {
170	<	f.join();
171	<	shouldThrow();
172	<	} catch (CompletionException success) {
173	<	assertTrue(success.getCause() instanceof CancellationException);
174	<	}
175	<	try {
176	<	f.getNow(null);
177	<	shouldThrow();
178	<	} catch (CompletionException success) {
179	<	assertTrue(success.getCause() instanceof CancellationException);
180	<	}
181	<	try {
182	<	f.get();
183	<	shouldThrow();
184	<	} catch (ExecutionException success) {
185	<	assertTrue(success.getCause() instanceof CancellationException);
186	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
198	>	assertTrue(exceptionalCompletion(f) instanceof CancellationException);
199	>
200		assertTrue(f.isDone());
188	–	assertFalse(f.isCancelled());
201		assertTrue(f.isCompletedExceptionally());
202	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
202	>	assertTrue(f.isCancelled());
203	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
204		}
205
206		/**
#	Line 204 | Line 217 | public class CompletableFutureTest exten
217		* isCancelled, join, get, and getNow
218		*/
219		public void testComplete() {
220	+	for (Integer v1 : new Integer[] { 1, null })
221	+	{
222		CompletableFuture<Integer> f = new CompletableFuture<>();
223		checkIncomplete(f);
224	<	f.complete(one);
225	<	checkCompletedNormally(f, one);
226	<	}
224	>	assertTrue(f.complete(v1));
225	>	assertFalse(f.complete(v1));
226	>	checkCompletedNormally(f, v1);
227	>	}}
228
229		/**
230		* completeExceptionally completes exceptionally, as indicated by
#	Line 216 | Line 232 | public class CompletableFutureTest exten
232		*/
233		public void testCompleteExceptionally() {
234		CompletableFuture<Integer> f = new CompletableFuture<>();
235	+	CFException ex = new CFException();
236		checkIncomplete(f);
237	<	f.completeExceptionally(new CFException());
238	<	checkCompletedWithWrappedCFException(f);
237	>	f.completeExceptionally(ex);
238	>	checkCompletedExceptionally(f, ex);
239		}
240
241		/**
#	Line 226 | Line 243 | public class CompletableFutureTest exten
243		* methods isDone, isCancelled, join, get, and getNow
244		*/
245		public void testCancel() {
246	+	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
247	+	{
248		CompletableFuture<Integer> f = new CompletableFuture<>();
249		checkIncomplete(f);
250	<	assertTrue(f.cancel(true));
250	>	assertTrue(f.cancel(mayInterruptIfRunning));
251	>	assertTrue(f.cancel(mayInterruptIfRunning));
252	>	assertTrue(f.cancel(!mayInterruptIfRunning));
253		checkCancelled(f);
254	<	}
254	>	}}
255
256		/**
257		* obtrudeValue forces completion with given value
#	Line 238 | Line 259 | public class CompletableFutureTest exten
259		public void testObtrudeValue() {
260		CompletableFuture<Integer> f = new CompletableFuture<>();
261		checkIncomplete(f);
262	<	f.complete(one);
262	>	assertTrue(f.complete(one));
263		checkCompletedNormally(f, one);
264		f.obtrudeValue(three);
265		checkCompletedNormally(f, three);
#	Line 247 | Line 268 | public class CompletableFutureTest exten
268		f = new CompletableFuture<>();
269		f.obtrudeValue(three);
270		checkCompletedNormally(f, three);
271	+	f.obtrudeValue(null);
272	+	checkCompletedNormally(f, null);
273		f = new CompletableFuture<>();
274		f.completeExceptionally(new CFException());
275		f.obtrudeValue(four);
#	Line 257 | Line 280 | public class CompletableFutureTest exten
280		* obtrudeException forces completion with given exception
281		*/
282		public void testObtrudeException() {
283	<	CompletableFuture<Integer> f = new CompletableFuture<>();
284	<	checkIncomplete(f);
285	<	f.complete(one);
286	<	checkCompletedNormally(f, one);
287	<	f.obtrudeException(new CFException());
265	<	checkCompletedWithWrappedCFException(f);
283	>	for (Integer v1 : new Integer[] { 1, null })
284	>	{
285	>	CFException ex;
286	>	CompletableFuture<Integer> f;
287	>
288		f = new CompletableFuture<>();
289	<	f.obtrudeException(new CFException());
290	<	checkCompletedWithWrappedCFException(f);
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	+	for (ExecutionMode m : ExecutionMode.values())
318	+	for (Integer v1 : new Integer[] { 1, null })
319	+	{
320		CompletableFuture<Integer> f = new CompletableFuture<>();
321	<	assertEquals(f.getNumberOfDependents(), 0);
322	<	CompletableFuture g = f.thenRun(new Noop());
323	<	assertEquals(f.getNumberOfDependents(), 1);
324	<	assertEquals(g.getNumberOfDependents(), 0);
325	<	CompletableFuture h = f.thenRun(new Noop());
326	<	assertEquals(f.getNumberOfDependents(), 2);
327	<	f.complete(1);
321	>	assertEquals(0, f.getNumberOfDependents());
322	>	final CompletableFuture<Void> g = m.thenRun(f, new Noop(m));
323	>	assertEquals(1, f.getNumberOfDependents());
324	>	assertEquals(0, g.getNumberOfDependents());
325	>	final CompletableFuture<Void> h = m.thenRun(f, new Noop(m));
326	>	assertEquals(2, f.getNumberOfDependents());
327	>	assertEquals(0, h.getNumberOfDependents());
328	>	assertTrue(f.complete(v1));
329		checkCompletedNormally(g, null);
330	<	assertEquals(f.getNumberOfDependents(), 0);
331	<	assertEquals(g.getNumberOfDependents(), 0);
332	<	}
330	>	checkCompletedNormally(h, null);
331	>	assertEquals(0, f.getNumberOfDependents());
332	>	assertEquals(0, g.getNumberOfDependents());
333	>	assertEquals(0, h.getNumberOfDependents());
334	>	}}
335
336		/**
337		* toString indicates current completion state
338		*/
339	<	public void testToString() {
340	<	CompletableFuture<String> f;
341	<
342	<	f = new CompletableFuture<String>();
343	<	assertTrue(f.toString().contains("[Not completed]"));
344	<
345	<	f.complete("foo");
346	<	assertTrue(f.toString().contains("[Completed normally]"));
347	<
348	<	f = new CompletableFuture<String>();
349	<	f.completeExceptionally(new IndexOutOfBoundsException());
350	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
339	>	public void testToString_incomplete() {
340	>	CompletableFuture<String> f = new CompletableFuture<>();
341	>	assertTrue(f.toString().matches(".*\\[.*Not completed.*\\]"));
342	>	if (testImplementationDetails)
343	>	assertEquals(identityString(f) + "[Not completed]",
344	>	f.toString());
345	>	}
346	>
347	>	public void testToString_normal() {
348	>	CompletableFuture<String> f = new CompletableFuture<>();
349	>	assertTrue(f.complete("foo"));
350	>	assertTrue(f.toString().matches(".*\\[.*Completed normally.*\\]"));
351	>	if (testImplementationDetails)
352	>	assertEquals(identityString(f) + "[Completed normally]",
353	>	f.toString());
354	>	}
355	>
356	>	public void testToString_exception() {
357	>	CompletableFuture<String> f = new CompletableFuture<>();
358	>	assertTrue(f.completeExceptionally(new IndexOutOfBoundsException()));
359	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
360	>	if (testImplementationDetails)
361	>	assertTrue(f.toString().startsWith(
362	>	identityString(f) + "[Completed exceptionally: "));
363	>	}
364	>
365	>	public void testToString_cancelled() {
366	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false }) {
367	>	CompletableFuture<String> f = new CompletableFuture<>();
368	>	assertTrue(f.cancel(mayInterruptIfRunning));
369	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
370	>	if (testImplementationDetails)
371	>	assertTrue(f.toString().startsWith(
372	>	identityString(f) + "[Completed exceptionally: "));
373	>	}
374		}
375
376		/**
#	Line 316 | Line 381 | public class CompletableFutureTest exten
381		checkCompletedNormally(f, "test");
382		}
383
384	<	// Choose non-commutative actions for better coverage
384	>	abstract static class CheckedAction {
385	>	int invocationCount = 0;
386	>	final ExecutionMode m;
387	>	CheckedAction(ExecutionMode m) { this.m = m; }
388	>	void invoked() {
389	>	m.checkExecutionMode();
390	>	assertEquals(0, invocationCount++);
391	>	}
392	>	void assertNotInvoked() { assertEquals(0, invocationCount); }
393	>	void assertInvoked() { assertEquals(1, invocationCount); }
394	>	}
395
396	<	// A non-commutative function that handles null values as well
397	<	public static int subtract(Integer x, Integer y) {
398	<	return ((x == null) ? 42 : x.intValue())
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	>	// A function that handles and produces null values as well.
420	>	static Integer inc(Integer x) {
421	>	return (x == null) ? null : x + 1;
422	>	}
423	>
424	>	static class NoopConsumer extends CheckedIntegerAction
425	>	implements Consumer<Integer>
426	>	{
427	>	NoopConsumer(ExecutionMode m) { super(m); }
428	>	public void accept(Integer x) {
429	>	invoked();
430	>	value = x;
431	>	}
432	>	}
433	>
434	>	static class IncFunction extends CheckedIntegerAction
435	>	implements Function<Integer,Integer>
436	>	{
437	>	IncFunction(ExecutionMode m) { super(m); }
438	>	public Integer apply(Integer x) {
439	>	invoked();
440	>	return value = inc(x);
441	>	}
442	>	}
443	>
444	>	// Choose non-commutative actions for better coverage
445	>	// A non-commutative function that handles and produces null values as well.
446	>	static Integer subtract(Integer x, Integer y) {
447	>	return (x == null && y == null) ? null :
448	>	((x == null) ? 42 : x.intValue())
449		- ((y == null) ? 99 : y.intValue());
450		}
451
452	<	static final Supplier<Integer> supplyOne =
453	<	() -> Integer.valueOf(1);
454	<	static final Function<Integer, Integer> inc =
455	<	(Integer x) -> Integer.valueOf(x.intValue() + 1);
331	<	static final BiFunction<Integer, Integer, Integer> subtract =
332	<	(Integer x, Integer y) -> subtract(x, y);
333	<	static final class IncAction implements Consumer<Integer> {
334	<	int value;
335	<	public void accept(Integer x) { value = x.intValue() + 1; }
336	<	}
337	<	static final class SubtractAction implements BiConsumer<Integer, Integer> {
338	<	volatile int invocationCount = 0;
339	<	int value;
340	<	// Check this action was invoked exactly once when result is computed.
341	<	public boolean ran() { return invocationCount == 1; }
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	<	invocationCount++;
457	>	invoked();
458		value = subtract(x, y);
459		}
460		}
461	<	static final class SubtractFunction implements BiFunction<Integer, Integer, Integer> {
462	<	volatile int invocationCount = 0;
463	<	int value;
464	<	// Check this action was invoked exactly once when result is computed.
465	<	public boolean ran() { return invocationCount == 1; }
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	<	invocationCount++;
468	<	return subtract(x, y);
467	>	invoked();
468	>	return value = subtract(x, y);
469		}
470		}
471	<	static final class Noop implements Runnable {
472	<	boolean ran;
473	<	public void run() { ran = true; }
471	>
472	>	static class Noop extends CheckedAction implements Runnable {
473	>	Noop(ExecutionMode m) { super(m); }
474	>	public void run() {
475	>	invoked();
476	>	}
477		}
478
479	<	static final class FailingSupplier implements Supplier<Integer> {
480	<	boolean ran;
481	<	public Integer get() { ran = true; throw new CFException(); }
479	>	static class FailingSupplier extends CheckedAction
480	>	implements Supplier<Integer>
481	>	{
482	>	final CFException ex;
483	>	FailingSupplier(ExecutionMode m) { super(m); ex = new CFException(); }
484	>	public Integer get() {
485	>	invoked();
486	>	throw ex;
487	>	}
488		}
489	<	static final class FailingConsumer implements Consumer<Integer> {
490	<	boolean ran;
491	<	public void accept(Integer x) { ran = true; throw new CFException(); }
489	>
490	>	static class FailingConsumer extends CheckedIntegerAction
491	>	implements Consumer<Integer>
492	>	{
493	>	final CFException ex;
494	>	FailingConsumer(ExecutionMode m) { super(m); ex = new CFException(); }
495	>	public void accept(Integer x) {
496	>	invoked();
497	>	value = x;
498	>	throw ex;
499	>	}
500		}
501	<	static final class FailingBiConsumer implements BiConsumer<Integer, Integer> {
502	<	boolean ran;
503	<	public void accept(Integer x, Integer y) { ran = true; throw new CFException(); }
501	>
502	>	static class FailingBiConsumer extends CheckedIntegerAction
503	>	implements BiConsumer<Integer, Integer>
504	>	{
505	>	final CFException ex;
506	>	FailingBiConsumer(ExecutionMode m) { super(m); ex = new CFException(); }
507	>	public void accept(Integer x, Integer y) {
508	>	invoked();
509	>	value = subtract(x, y);
510	>	throw ex;
511	>	}
512		}
513	<	static final class FailingFunction implements Function<Integer, Integer> {
514	<	boolean ran;
515	<	public Integer apply(Integer x) { ran = true; throw new CFException(); }
513	>
514	>	static class FailingFunction extends CheckedIntegerAction
515	>	implements Function<Integer, Integer>
516	>	{
517	>	final CFException ex;
518	>	FailingFunction(ExecutionMode m) { super(m); ex = new CFException(); }
519	>	public Integer apply(Integer x) {
520	>	invoked();
521	>	value = x;
522	>	throw ex;
523	>	}
524		}
525	<	static final class FailingBiFunction implements BiFunction<Integer, Integer, Integer> {
526	<	boolean ran;
527	<	public Integer apply(Integer x, Integer y) { ran = true; throw new CFException(); }
525	>
526	>	static class FailingBiFunction extends CheckedIntegerAction
527	>	implements BiFunction<Integer, Integer, Integer>
528	>	{
529	>	final CFException ex;
530	>	FailingBiFunction(ExecutionMode m) { super(m); ex = new CFException(); }
531	>	public Integer apply(Integer x, Integer y) {
532	>	invoked();
533	>	value = subtract(x, y);
534	>	throw ex;
535	>	}
536		}
537	<	static final class FailingNoop implements Runnable {
538	<	boolean ran;
539	<	public void run() { ran = true; throw new CFException(); }
537	>
538	>	static class FailingRunnable extends CheckedAction implements Runnable {
539	>	final CFException ex;
540	>	FailingRunnable(ExecutionMode m) { super(m); ex = new CFException(); }
541	>	public void run() {
542	>	invoked();
543	>	throw ex;
544	>	}
545		}
546
547	<	static final class CompletableFutureInc
548	<	implements Function<Integer, CompletableFuture<Integer>> {
549	<	boolean ran;
547	>	static class CompletableFutureInc extends CheckedIntegerAction
548	>	implements Function<Integer, CompletableFuture<Integer>>
549	>	{
550	>	CompletableFutureInc(ExecutionMode m) { super(m); }
551		public CompletableFuture<Integer> apply(Integer x) {
552	<	ran = true;
553	<	CompletableFuture<Integer> f = new CompletableFuture<>();
554	<	f.complete(Integer.valueOf(x.intValue() + 1));
394	<	return f;
552	>	invoked();
553	>	value = x;
554	>	return CompletableFuture.completedFuture(inc(x));
555		}
556		}
557
558	<	static final class FailingCompletableFutureFunction
559	<	implements Function<Integer, CompletableFuture<Integer>> {
560	<	boolean ran;
561	<	public CompletableFuture<Integer> apply(Integer x) {
562	<	ran = true; throw new CFException();
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	<	// Used for explicit executor tests
570	<	static final class ThreadExecutor implements Executor {
571	<	AtomicInteger count = new AtomicInteger(0);
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 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	+	invoked();
586	+	value = x;
587	+	throw ex;
588	+	}
589	+	}
590	+
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		count.getAndIncrement();
596	<	new Thread(r).start();
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	<	boolean ran;
610	<	public Integer apply(Integer x, Throwable t) {
423	<	ran = true;
424	<	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 repeating all the testing code.
619	>	* execution modes without copy/pasting all the test methods.
620		*/
621		enum ExecutionMode {
622	<	DEFAULT {
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);
#	Line 447 | Line 673 | public class CompletableFutureTest exten
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	<
705	<	//             /** Experimental way to do more testing */
706	<	//         REVERSE_DEFAULT {
707	<	//             public <T,U> CompletableFuture<Void> runAfterBoth
708	<	//                 (CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) {
709	<	//                 return g.runAfterBoth(f, a);
710	<	//             }
711	<	//             public <T,U> CompletableFuture<Void> thenAcceptBoth
712	<	//                 (CompletableFuture<T> f,
713	<	//                  CompletionStage<? extends U> g,
714	<	//                  BiConsumer<? super T,? super U> a) {
715	<	//                 return DEFAULT.thenAcceptBoth(f, g, a);
716	<	//             }
717	<	//         },
718	<
719	<	DEFAULT_ASYNC {
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);
#	Line 480 | Line 755 | public class CompletableFutureTest exten
755		BiFunction<? super T,? super U,? extends V> a) {
756		return f.thenCombineAsync(g, a);
757		}
758	<	},
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	<	//         REVERSE_DEFAULT_ASYNC {
783	<	//             public <T,U> CompletableFuture<Void> runAfterBoth
784	<	//                 (CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) {
785	<	//                 return f.runAfterBothAsync(g, a);
786	<	//             }
787	<	//             public <T,U> CompletableFuture<Void> thenAcceptBoth
491	<	//                 (CompletableFuture<T> f,
492	<	//                  CompletionStage<? extends U> g,
493	<	//                  BiConsumer<? super T,? super U> a) {
494	<	//                 return DEFAULT_ASYNC.thenAcceptBoth(f, g, a);
495	<	//             }
496	<	//         },
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());
#	Line 512 | Line 839 | public class CompletableFutureTest exten
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
#	Line 524 | Line 897 | public class CompletableFutureTest exten
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 completes with function value on source
922	<	* exception; otherwise with source value
921	>	* exceptionally action is not invoked when source completes
922	>	* normally, and source result is propagated
923		*/
924	<	public void testExceptionally() {
925	<	CompletableFuture<Integer> f = new CompletableFuture<>();
926	<	ExceptionToInteger r = new ExceptionToInteger();
927	<	CompletableFuture<Integer> g = f.exceptionally(r);
928	<	f.completeExceptionally(new CFException());
929	<	checkCompletedNormally(g, three);
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 AtomicInteger ran = new AtomicInteger(0);
930	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
931	>	if (!createIncomplete) assertTrue(f.complete(v1));
932	>	final CompletableFuture<Integer> g = m.exceptionally
933	>	(f, (Throwable t) -> {
934	>	ran.getAndIncrement();
935	>	throw new AssertionError("should not be called");
936	>	});
937	>	if (createIncomplete) assertTrue(f.complete(v1));
938
939	<	f = new CompletableFuture<>();
940	<	r = new ExceptionToInteger();
941	<	g = f.exceptionally(r);
942	<	f.complete(one);
544	<	checkCompletedNormally(g, one);
545	<	}
939	>	checkCompletedNormally(g, v1);
940	>	checkCompletedNormally(f, v1);
941	>	assertEquals(0, ran.get());
942	>	}}
943
944		/**
945	<	* handle action completes normally with function value on either
946	<	* normal or exceptional completion of source
945	>	* exceptionally action completes with function value on source
946	>	* exception
947		*/
948	<	public void testHandle() {
949	<	CompletableFuture<Integer> f, g;
950	<	IntegerHandler r;
951	<
952	<	f = new CompletableFuture<>();
953	<	f.completeExceptionally(new CFException());
954	<	g = f.handle(r = new IntegerHandler());
955	<	assertTrue(r.ran);
956	<	checkCompletedNormally(g, three);
957	<
958	<	f = new CompletableFuture<>();
959	<	g = f.handle(r = new IntegerHandler());
960	<	assertFalse(r.ran);
961	<	f.completeExceptionally(new CFException());
962	<	checkCompletedNormally(g, three);
963	<	assertTrue(r.ran);
964	<
568	<	f = new CompletableFuture<>();
569	<	f.complete(one);
570	<	g = f.handle(r = new IntegerHandler());
571	<	assertTrue(r.ran);
572	<	checkCompletedNormally(g, two);
948	>	public void testExceptionally_exceptionalCompletion() {
949	>	for (ExecutionMode m : ExecutionMode.values())
950	>	for (boolean createIncomplete : new boolean[] { true, false })
951	>	for (Integer v1 : new Integer[] { 1, null })
952	>	{
953	>	final AtomicInteger ran = new AtomicInteger(0);
954	>	final CFException ex = new CFException();
955	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
956	>	if (!createIncomplete) f.completeExceptionally(ex);
957	>	final CompletableFuture<Integer> g = m.exceptionally
958	>	(f, (Throwable t) -> {
959	>	m.checkExecutionMode();
960	>	assertSame(t, ex);
961	>	ran.getAndIncrement();
962	>	return v1;
963	>	});
964	>	if (createIncomplete) f.completeExceptionally(ex);
965
966	<	f = new CompletableFuture<>();
967	<	g = f.handle(r = new IntegerHandler());
968	<	assertFalse(r.ran);
577	<	f.complete(one);
578	<	assertTrue(r.ran);
579	<	checkCompletedNormally(g, two);
580	<	}
966	>	checkCompletedNormally(g, v1);
967	>	assertEquals(1, ran.get());
968	>	}}
969
970		/**
971	<	* runAsync completes after running Runnable
971	>	* If an "exceptionally action" throws an exception, it completes
972	>	* exceptionally with that exception
973		*/
974	<	public void testRunAsync() {
975	<	Noop r = new Noop();
976	<	CompletableFuture<Void> f = CompletableFuture.runAsync(r);
977	<	assertNull(f.join());
978	<	assertTrue(r.ran);
979	<	checkCompletedNormally(f, null);
980	<	}
974	>	public void testExceptionally_exceptionalCompletionActionFailed() {
975	>	for (ExecutionMode m : ExecutionMode.values())
976	>	for (boolean createIncomplete : new boolean[] { true, false })
977	>	{
978	>	final AtomicInteger ran = new AtomicInteger(0);
979	>	final CFException ex1 = new CFException();
980	>	final CFException ex2 = new CFException();
981	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
982	>	if (!createIncomplete) f.completeExceptionally(ex1);
983	>	final CompletableFuture<Integer> g = m.exceptionally
984	>	(f, (Throwable t) -> {
985	>	m.checkExecutionMode();
986	>	assertSame(t, ex1);
987	>	ran.getAndIncrement();
988	>	throw ex2;
989	>	});
990	>	if (createIncomplete) f.completeExceptionally(ex1);
991	>
992	>	checkCompletedWithWrappedException(g, ex2);
993	>	checkCompletedExceptionally(f, ex1);
994	>	assertEquals(1, ran.get());
995	>	}}
996
997		/**
998	<	* runAsync with executor completes after running Runnable
998	>	* whenComplete action executes on normal completion, propagating
999	>	* source result.
1000		*/
1001	<	public void testRunAsync2() {
1002	<	Noop r = new Noop();
1003	<	ThreadExecutor exec = new ThreadExecutor();
1004	<	CompletableFuture<Void> f = CompletableFuture.runAsync(r, exec);
1005	<	assertNull(f.join());
1006	<	assertTrue(r.ran);
1007	<	checkCompletedNormally(f, null);
1008	<	assertEquals(1, exec.count.get());
1009	<	}
1001	>	public void testWhenComplete_normalCompletion() {
1002	>	for (ExecutionMode m : ExecutionMode.values())
1003	>	for (boolean createIncomplete : new boolean[] { true, false })
1004	>	for (Integer v1 : new Integer[] { 1, null })
1005	>	{
1006	>	final AtomicInteger ran = new AtomicInteger(0);
1007	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1008	>	if (!createIncomplete) assertTrue(f.complete(v1));
1009	>	final CompletableFuture<Integer> g = m.whenComplete
1010	>	(f,
1011	>	(Integer result, Throwable t) -> {
1012	>	m.checkExecutionMode();
1013	>	assertSame(result, v1);
1014	>	assertNull(t);
1015	>	ran.getAndIncrement();
1016	>	});
1017	>	if (createIncomplete) assertTrue(f.complete(v1));
1018
1019	<	/**
1020	<	* failing runAsync completes exceptionally after running Runnable
1021	<	*/
1022	<	public void testRunAsync3() {
610	<	FailingNoop r = new FailingNoop();
611	<	CompletableFuture<Void> f = CompletableFuture.runAsync(r);
612	<	checkCompletedWithWrappedCFException(f);
613	<	assertTrue(r.ran);
614	<	}
1019	>	checkCompletedNormally(g, v1);
1020	>	checkCompletedNormally(f, v1);
1021	>	assertEquals(1, ran.get());
1022	>	}}
1023
1024		/**
1025	<	* supplyAsync completes with result of supplier
1025	>	* whenComplete action executes on exceptional completion, propagating
1026	>	* source result.
1027		*/
1028	<	public void testSupplyAsync() {
1029	<	CompletableFuture<Integer> f;
1030	<	f = CompletableFuture.supplyAsync(supplyOne);
1031	<	assertEquals(f.join(), one);
1032	<	checkCompletedNormally(f, one);
1033	<	}
1028	>	public void testWhenComplete_exceptionalCompletion() {
1029	>	for (ExecutionMode m : ExecutionMode.values())
1030	>	for (boolean createIncomplete : new boolean[] { true, false })
1031	>	{
1032	>	final AtomicInteger ran = new AtomicInteger(0);
1033	>	final CFException ex = new CFException();
1034	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1035	>	if (!createIncomplete) f.completeExceptionally(ex);
1036	>	final CompletableFuture<Integer> g = m.whenComplete
1037	>	(f,
1038	>	(Integer result, Throwable t) -> {
1039	>	m.checkExecutionMode();
1040	>	assertNull(result);
1041	>	assertSame(t, ex);
1042	>	ran.getAndIncrement();
1043	>	});
1044	>	if (createIncomplete) f.completeExceptionally(ex);
1045	>
1046	>	checkCompletedWithWrappedException(g, ex);
1047	>	checkCompletedExceptionally(f, ex);
1048	>	assertEquals(1, ran.get());
1049	>	}}
1050
1051		/**
1052	<	* supplyAsync with executor completes with result of supplier
1052	>	* whenComplete action executes on cancelled source, propagating
1053	>	* CancellationException.
1054		*/
1055	<	public void testSupplyAsync2() {
1056	<	CompletableFuture<Integer> f;
1057	<	f = CompletableFuture.supplyAsync(supplyOne, new ThreadExecutor());
1058	<	assertEquals(f.join(), one);
1059	<	checkCompletedNormally(f, one);
1060	<	}
1055	>	public void testWhenComplete_sourceCancelled() {
1056	>	for (ExecutionMode m : ExecutionMode.values())
1057	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1058	>	for (boolean createIncomplete : new boolean[] { true, false })
1059	>	{
1060	>	final AtomicInteger ran = new AtomicInteger(0);
1061	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1062	>	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1063	>	final CompletableFuture<Integer> g = m.whenComplete
1064	>	(f,
1065	>	(Integer result, Throwable t) -> {
1066	>	m.checkExecutionMode();
1067	>	assertNull(result);
1068	>	assertTrue(t instanceof CancellationException);
1069	>	ran.getAndIncrement();
1070	>	});
1071	>	if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1072	>
1073	>	checkCompletedWithWrappedCancellationException(g);
1074	>	checkCancelled(f);
1075	>	assertEquals(1, ran.get());
1076	>	}}
1077
1078		/**
1079	<	* Failing supplyAsync completes exceptionally
1079	>	* If a whenComplete action throws an exception when triggered by
1080	>	* a normal completion, it completes exceptionally
1081		*/
1082	<	public void testSupplyAsync3() {
1083	<	FailingSupplier r = new FailingSupplier();
1084	<	CompletableFuture<Integer> f = CompletableFuture.supplyAsync(r);
1085	<	checkCompletedWithWrappedCFException(f);
1086	<	assertTrue(r.ran);
1087	<	}
1082	>	public void testWhenComplete_sourceCompletedNormallyActionFailed() {
1083	>	for (boolean createIncomplete : new boolean[] { true, false })
1084	>	for (ExecutionMode m : ExecutionMode.values())
1085	>	for (Integer v1 : new Integer[] { 1, null })
1086	>	{
1087	>	final AtomicInteger ran = new AtomicInteger(0);
1088	>	final CFException ex = new CFException();
1089	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1090	>	if (!createIncomplete) assertTrue(f.complete(v1));
1091	>	final CompletableFuture<Integer> g = m.whenComplete
1092	>	(f,
1093	>	(Integer result, Throwable t) -> {
1094	>	m.checkExecutionMode();
1095	>	assertSame(result, v1);
1096	>	assertNull(t);
1097	>	ran.getAndIncrement();
1098	>	throw ex;
1099	>	});
1100	>	if (createIncomplete) assertTrue(f.complete(v1));
1101
1102	<	// seq completion methods
1102	>	checkCompletedWithWrappedException(g, ex);
1103	>	checkCompletedNormally(f, v1);
1104	>	assertEquals(1, ran.get());
1105	>	}}
1106
1107		/**
1108	<	* thenRun result completes normally after normal completion of source
1108	>	* If a whenComplete action throws an exception when triggered by
1109	>	* a source completion that also throws an exception, the source
1110	>	* exception takes precedence (unlike handle)
1111		*/
1112	<	public void testThenRun() {
1113	<	CompletableFuture<Integer> f;
1114	<	CompletableFuture<Void> g;
1115	<	Noop r;
1116	<
1117	<	f = new CompletableFuture<>();
1118	<	g = f.thenRun(r = new Noop());
1119	<	f.complete(null);
1120	<	checkCompletedNormally(g, null);
1121	<	assertTrue(r.ran);
1122	<
1123	<	f = new CompletableFuture<>();
1124	<	f.complete(null);
1125	<	g = f.thenRun(r = new Noop());
1126	<	checkCompletedNormally(g, null);
1127	<	assertTrue(r.ran);
1128	<	}
1112	>	public void testWhenComplete_sourceFailedActionFailed() {
1113	>	for (boolean createIncomplete : new boolean[] { true, false })
1114	>	for (ExecutionMode m : ExecutionMode.values())
1115	>	{
1116	>	final AtomicInteger ran = new AtomicInteger(0);
1117	>	final CFException ex1 = new CFException();
1118	>	final CFException ex2 = new CFException();
1119	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1120	>
1121	>	if (!createIncomplete) f.completeExceptionally(ex1);
1122	>	final CompletableFuture<Integer> g = m.whenComplete
1123	>	(f,
1124	>	(Integer result, Throwable t) -> {
1125	>	m.checkExecutionMode();
1126	>	assertSame(t, ex1);
1127	>	assertNull(result);
1128	>	ran.getAndIncrement();
1129	>	throw ex2;
1130	>	});
1131	>	if (createIncomplete) f.completeExceptionally(ex1);
1132	>
1133	>	checkCompletedWithWrappedException(g, ex1);
1134	>	checkCompletedExceptionally(f, ex1);
1135	>	if (testImplementationDetails) {
1136	>	assertEquals(1, ex1.getSuppressed().length);
1137	>	assertSame(ex2, ex1.getSuppressed()[0]);
1138	>	}
1139	>	assertEquals(1, ran.get());
1140	>	}}
1141
1142		/**
1143	<	* thenRun result completes exceptionally after exceptional
1143	>	* handle action completes normally with function value on normal
1144		* completion of source
1145		*/
1146	<	public void testThenRun2() {
1147	<	CompletableFuture<Integer> f;
1148	<	CompletableFuture<Void> g;
1149	<	Noop r;
1150	<
1151	<	f = new CompletableFuture<>();
1152	<	g = f.thenRun(r = new Noop());
1153	<	f.completeExceptionally(new CFException());
1154	<	checkCompletedWithWrappedCFException(g);
1155	<	assertFalse(r.ran);
1146	>	public void testHandle_normalCompletion() {
1147	>	for (ExecutionMode m : ExecutionMode.values())
1148	>	for (boolean createIncomplete : new boolean[] { true, false })
1149	>	for (Integer v1 : new Integer[] { 1, null })
1150	>	{
1151	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1152	>	final AtomicInteger ran = new AtomicInteger(0);
1153	>	if (!createIncomplete) assertTrue(f.complete(v1));
1154	>	final CompletableFuture<Integer> g = m.handle
1155	>	(f,
1156	>	(Integer result, Throwable t) -> {
1157	>	m.checkExecutionMode();
1158	>	assertSame(result, v1);
1159	>	assertNull(t);
1160	>	ran.getAndIncrement();
1161	>	return inc(v1);
1162	>	});
1163	>	if (createIncomplete) assertTrue(f.complete(v1));
1164
1165	<	f = new CompletableFuture<>();
1166	<	f.completeExceptionally(new CFException());
1167	<	g = f.thenRun(r = new Noop());
1168	<	checkCompletedWithWrappedCFException(g);
688	<	assertFalse(r.ran);
689	<	}
1165	>	checkCompletedNormally(g, inc(v1));
1166	>	checkCompletedNormally(f, v1);
1167	>	assertEquals(1, ran.get());
1168	>	}}
1169
1170		/**
1171	<	* thenRun result completes exceptionally if action does
1171	>	* handle action completes normally with function value on
1172	>	* exceptional completion of source
1173		*/
1174	<	public void testThenRun3() {
1175	<	CompletableFuture<Integer> f;
1176	<	CompletableFuture<Void> g;
1177	<	FailingNoop r;
1174	>	public void testHandle_exceptionalCompletion() {
1175	>	for (ExecutionMode m : ExecutionMode.values())
1176	>	for (boolean createIncomplete : new boolean[] { true, false })
1177	>	for (Integer v1 : new Integer[] { 1, null })
1178	>	{
1179	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1180	>	final AtomicInteger ran = new AtomicInteger(0);
1181	>	final CFException ex = new CFException();
1182	>	if (!createIncomplete) f.completeExceptionally(ex);
1183	>	final CompletableFuture<Integer> g = m.handle
1184	>	(f,
1185	>	(Integer result, Throwable t) -> {
1186	>	m.checkExecutionMode();
1187	>	assertNull(result);
1188	>	assertSame(t, ex);
1189	>	ran.getAndIncrement();
1190	>	return v1;
1191	>	});
1192	>	if (createIncomplete) f.completeExceptionally(ex);
1193
1194	<	f = new CompletableFuture<>();
1195	<	g = f.thenRun(r = new FailingNoop());
1196	<	f.complete(null);
1197	<	checkCompletedWithWrappedCFException(g);
1194	>	checkCompletedNormally(g, v1);
1195	>	checkCompletedExceptionally(f, ex);
1196	>	assertEquals(1, ran.get());
1197	>	}}
1198
1199	<	f = new CompletableFuture<>();
1200	<	f.complete(null);
1201	<	g = f.thenRun(r = new FailingNoop());
1202	<	checkCompletedWithWrappedCFException(g);
1203	<	}
1199	>	/**
1200	>	* handle action completes normally with function value on
1201	>	* cancelled source
1202	>	*/
1203	>	public void testHandle_sourceCancelled() {
1204	>	for (ExecutionMode m : ExecutionMode.values())
1205	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1206	>	for (boolean createIncomplete : new boolean[] { true, false })
1207	>	for (Integer v1 : new Integer[] { 1, null })
1208	>	{
1209	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1210	>	final AtomicInteger ran = new AtomicInteger(0);
1211	>	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1212	>	final CompletableFuture<Integer> g = m.handle
1213	>	(f,
1214	>	(Integer result, Throwable t) -> {
1215	>	m.checkExecutionMode();
1216	>	assertNull(result);
1217	>	assertTrue(t instanceof CancellationException);
1218	>	ran.getAndIncrement();
1219	>	return v1;
1220	>	});
1221	>	if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1222	>
1223	>	checkCompletedNormally(g, v1);
1224	>	checkCancelled(f);
1225	>	assertEquals(1, ran.get());
1226	>	}}
1227
1228		/**
1229	<	* thenRun result completes exceptionally if source cancelled
1229	>	* If a "handle action" throws an exception when triggered by
1230	>	* a normal completion, it completes exceptionally
1231		*/
1232	<	public void testThenRun4() {
1233	<	CompletableFuture<Integer> f;
1234	<	CompletableFuture<Void> g;
1235	<	Noop r;
1232	>	public void testHandle_sourceCompletedNormallyActionFailed() {
1233	>	for (ExecutionMode m : ExecutionMode.values())
1234	>	for (boolean createIncomplete : new boolean[] { true, false })
1235	>	for (Integer v1 : new Integer[] { 1, null })
1236	>	{
1237	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1238	>	final AtomicInteger ran = new AtomicInteger(0);
1239	>	final CFException ex = new CFException();
1240	>	if (!createIncomplete) assertTrue(f.complete(v1));
1241	>	final CompletableFuture<Integer> g = m.handle
1242	>	(f,
1243	>	(Integer result, Throwable t) -> {
1244	>	m.checkExecutionMode();
1245	>	assertSame(result, v1);
1246	>	assertNull(t);
1247	>	ran.getAndIncrement();
1248	>	throw ex;
1249	>	});
1250	>	if (createIncomplete) assertTrue(f.complete(v1));
1251
1252	<	f = new CompletableFuture<>();
1253	<	g = f.thenRun(r = new Noop());
1254	<	assertTrue(f.cancel(true));
1255	<	checkCompletedWithWrappedCancellationException(g);
1252	>	checkCompletedWithWrappedException(g, ex);
1253	>	checkCompletedNormally(f, v1);
1254	>	assertEquals(1, ran.get());
1255	>	}}
1256
1257	<	f = new CompletableFuture<>();
1258	<	assertTrue(f.cancel(true));
1259	<	g = f.thenRun(r = new Noop());
1260	<	checkCompletedWithWrappedCancellationException(g);
1261	<	}
1257	>	/**
1258	>	* If a "handle action" throws an exception when triggered by
1259	>	* a source completion that also throws an exception, the action
1260	>	* exception takes precedence (unlike whenComplete)
1261	>	*/
1262	>	public void testHandle_sourceFailedActionFailed() {
1263	>	for (boolean createIncomplete : new boolean[] { true, false })
1264	>	for (ExecutionMode m : ExecutionMode.values())
1265	>	{
1266	>	final AtomicInteger ran = new AtomicInteger(0);
1267	>	final CFException ex1 = new CFException();
1268	>	final CFException ex2 = new CFException();
1269	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1270	>
1271	>	if (!createIncomplete) f.completeExceptionally(ex1);
1272	>	final CompletableFuture<Integer> g = m.handle
1273	>	(f,
1274	>	(Integer result, Throwable t) -> {
1275	>	m.checkExecutionMode();
1276	>	assertNull(result);
1277	>	assertSame(ex1, t);
1278	>	ran.getAndIncrement();
1279	>	throw ex2;
1280	>	});
1281	>	if (createIncomplete) f.completeExceptionally(ex1);
1282	>
1283	>	checkCompletedWithWrappedException(g, ex2);
1284	>	checkCompletedExceptionally(f, ex1);
1285	>	assertEquals(1, ran.get());
1286	>	}}
1287
1288		/**
1289	<	* thenApply result completes normally after normal completion of source
1289	>	* runAsync completes after running Runnable
1290		*/
1291	<	public void testThenApply() {
1292	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1293	<	CompletableFuture<Integer> g = f.thenApply(inc);
1294	<	f.complete(one);
1295	<	checkCompletedNormally(g, two);
1296	<	}
1291	>	public void testRunAsync_normalCompletion() {
1292	>	ExecutionMode[] executionModes = {
1293	>	ExecutionMode.ASYNC,
1294	>	ExecutionMode.EXECUTOR,
1295	>	};
1296	>	for (ExecutionMode m : executionModes)
1297	>	{
1298	>	final Noop r = new Noop(m);
1299	>	final CompletableFuture<Void> f = m.runAsync(r);
1300	>	assertNull(f.join());
1301	>	checkCompletedNormally(f, null);
1302	>	r.assertInvoked();
1303	>	}}
1304
1305		/**
1306	<	* thenApply result completes exceptionally after exceptional
741	<	* completion of source
1306	>	* failing runAsync completes exceptionally after running Runnable
1307		*/
1308	<	public void testThenApply2() {
1309	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1310	<	CompletableFuture<Integer> g = f.thenApply(inc);
1311	<	f.completeExceptionally(new CFException());
1312	<	checkCompletedWithWrappedCFException(g);
1308	>	public void testRunAsync_exceptionalCompletion() {
1309	>	ExecutionMode[] executionModes = {
1310	>	ExecutionMode.ASYNC,
1311	>	ExecutionMode.EXECUTOR,
1312	>	};
1313	>	for (ExecutionMode m : executionModes)
1314	>	{
1315	>	final FailingRunnable r = new FailingRunnable(m);
1316	>	final CompletableFuture<Void> f = m.runAsync(r);
1317	>	checkCompletedWithWrappedException(f, r.ex);
1318	>	r.assertInvoked();
1319	>	}}
1320	>
1321	>	@SuppressWarnings("FutureReturnValueIgnored")
1322	>	public void testRunAsync_rejectingExecutor() {
1323	>	CountingRejectingExecutor e = new CountingRejectingExecutor();
1324	>	try {
1325	>	CompletableFuture.runAsync(() -> {}, e);
1326	>	shouldThrow();
1327	>	} catch (Throwable t) {
1328	>	assertSame(e.ex, t);
1329	>	}
1330	>
1331	>	assertEquals(1, e.count.get());
1332		}
1333
1334		/**
1335	<	* thenApply result completes exceptionally if action does
1335	>	* supplyAsync completes with result of supplier
1336		*/
1337	<	public void testThenApply3() {
1338	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1339	<	CompletableFuture<Integer> g = f.thenApply(new FailingFunction());
1340	<	f.complete(one);
1341	<	checkCompletedWithWrappedCFException(g);
1342	<	}
1337	>	public void testSupplyAsync_normalCompletion() {
1338	>	ExecutionMode[] executionModes = {
1339	>	ExecutionMode.ASYNC,
1340	>	ExecutionMode.EXECUTOR,
1341	>	};
1342	>	for (ExecutionMode m : executionModes)
1343	>	for (Integer v1 : new Integer[] { 1, null })
1344	>	{
1345	>	final IntegerSupplier r = new IntegerSupplier(m, v1);
1346	>	final CompletableFuture<Integer> f = m.supplyAsync(r);
1347	>	assertSame(v1, f.join());
1348	>	checkCompletedNormally(f, v1);
1349	>	r.assertInvoked();
1350	>	}}
1351
1352		/**
1353	<	* thenApply result completes exceptionally if source cancelled
1353	>	* Failing supplyAsync completes exceptionally
1354		*/
1355	<	public void testThenApply4() {
1356	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1357	<	CompletableFuture<Integer> g = f.thenApply(inc);
1358	<	assertTrue(f.cancel(true));
1359	<	checkCompletedWithWrappedCancellationException(g);
1355	>	public void testSupplyAsync_exceptionalCompletion() {
1356	>	ExecutionMode[] executionModes = {
1357	>	ExecutionMode.ASYNC,
1358	>	ExecutionMode.EXECUTOR,
1359	>	};
1360	>	for (ExecutionMode m : executionModes)
1361	>	{
1362	>	FailingSupplier r = new FailingSupplier(m);
1363	>	CompletableFuture<Integer> f = m.supplyAsync(r);
1364	>	checkCompletedWithWrappedException(f, r.ex);
1365	>	r.assertInvoked();
1366	>	}}
1367	>
1368	>	@SuppressWarnings("FutureReturnValueIgnored")
1369	>	public void testSupplyAsync_rejectingExecutor() {
1370	>	CountingRejectingExecutor e = new CountingRejectingExecutor();
1371	>	try {
1372	>	CompletableFuture.supplyAsync(() -> null, e);
1373	>	shouldThrow();
1374	>	} catch (Throwable t) {
1375	>	assertSame(e.ex, t);
1376	>	}
1377	>
1378	>	assertEquals(1, e.count.get());
1379		}
1380
1381	+	// seq completion methods
1382	+
1383		/**
1384	<	* thenAccept result completes normally after normal completion of source
1384	>	* thenRun result completes normally after normal completion of source
1385		*/
1386	<	public void testThenAccept() {
1387	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1388	<	IncAction r = new IncAction();
1389	<	CompletableFuture<Void> g = f.thenAccept(r);
1390	<	f.complete(one);
1391	<	checkCompletedNormally(g, null);
1392	<	assertEquals(r.value, 2);
1393	<	}
1386	>	public void testThenRun_normalCompletion() {
1387	>	for (ExecutionMode m : ExecutionMode.values())
1388	>	for (Integer v1 : new Integer[] { 1, null })
1389	>	{
1390	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1391	>	final Noop[] rs = new Noop[6];
1392	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1393	>
1394	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1395	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1396	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1397	>	checkIncomplete(h0);
1398	>	checkIncomplete(h1);
1399	>	checkIncomplete(h2);
1400	>	assertTrue(f.complete(v1));
1401	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1402	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1403	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1404	>
1405	>	checkCompletedNormally(h0, null);
1406	>	checkCompletedNormally(h1, null);
1407	>	checkCompletedNormally(h2, null);
1408	>	checkCompletedNormally(h3, null);
1409	>	checkCompletedNormally(h4, null);
1410	>	checkCompletedNormally(h5, null);
1411	>	checkCompletedNormally(f, v1);
1412	>	for (Noop r : rs) r.assertInvoked();
1413	>	}}
1414
1415		/**
1416	<	* thenAccept result completes exceptionally after exceptional
1416	>	* thenRun result completes exceptionally after exceptional
1417		* completion of source
1418		*/
1419	<	public void testThenAccept2() {
1420	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1421	<	IncAction r = new IncAction();
1422	<	CompletableFuture<Void> g = f.thenAccept(r);
1423	<	f.completeExceptionally(new CFException());
1424	<	checkCompletedWithWrappedCFException(g);
1425	<	}
1419	>	public void testThenRun_exceptionalCompletion() {
1420	>	for (ExecutionMode m : ExecutionMode.values())
1421	>	{
1422	>	final CFException ex = new CFException();
1423	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1424	>	final Noop[] rs = new Noop[6];
1425	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1426	>
1427	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1428	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1429	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1430	>	checkIncomplete(h0);
1431	>	checkIncomplete(h1);
1432	>	checkIncomplete(h2);
1433	>	assertTrue(f.completeExceptionally(ex));
1434	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1435	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1436	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1437	>
1438	>	checkCompletedWithWrappedException(h0, ex);
1439	>	checkCompletedWithWrappedException(h1, ex);
1440	>	checkCompletedWithWrappedException(h2, ex);
1441	>	checkCompletedWithWrappedException(h3, ex);
1442	>	checkCompletedWithWrappedException(h4, ex);
1443	>	checkCompletedWithWrappedException(h5, ex);
1444	>	checkCompletedExceptionally(f, ex);
1445	>	for (Noop r : rs) r.assertNotInvoked();
1446	>	}}
1447
1448		/**
1449	<	* thenAccept result completes exceptionally if action does
1449	>	* thenRun result completes exceptionally if source cancelled
1450		*/
1451	<	public void testThenAccept3() {
1452	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1453	<	FailingConsumer r = new FailingConsumer();
1454	<	CompletableFuture<Void> g = f.thenAccept(r);
1455	<	f.complete(one);
1456	<	checkCompletedWithWrappedCFException(g);
1457	<	assertTrue(r.ran);
1458	<	}
1451	>	public void testThenRun_sourceCancelled() {
1452	>	for (ExecutionMode m : ExecutionMode.values())
1453	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1454	>	{
1455	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1456	>	final Noop[] rs = new Noop[6];
1457	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1458	>
1459	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1460	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1461	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1462	>	checkIncomplete(h0);
1463	>	checkIncomplete(h1);
1464	>	checkIncomplete(h2);
1465	>	assertTrue(f.cancel(mayInterruptIfRunning));
1466	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1467	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1468	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1469	>
1470	>	checkCompletedWithWrappedCancellationException(h0);
1471	>	checkCompletedWithWrappedCancellationException(h1);
1472	>	checkCompletedWithWrappedCancellationException(h2);
1473	>	checkCompletedWithWrappedCancellationException(h3);
1474	>	checkCompletedWithWrappedCancellationException(h4);
1475	>	checkCompletedWithWrappedCancellationException(h5);
1476	>	checkCancelled(f);
1477	>	for (Noop r : rs) r.assertNotInvoked();
1478	>	}}
1479
1480		/**
1481	<	* thenAccept result completes exceptionally if source cancelled
1481	>	* thenRun result completes exceptionally if action does
1482		*/
1483	<	public void testThenAccept4() {
1484	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1485	<	IncAction r = new IncAction();
1486	<	CompletableFuture<Void> g = f.thenAccept(r);
1487	<	assertTrue(f.cancel(true));
1488	<	checkCompletedWithWrappedCancellationException(g);
1489	<	}
1483	>	public void testThenRun_actionFailed() {
1484	>	for (ExecutionMode m : ExecutionMode.values())
1485	>	for (Integer v1 : new Integer[] { 1, null })
1486	>	{
1487	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1488	>	final FailingRunnable[] rs = new FailingRunnable[6];
1489	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingRunnable(m);
1490	>
1491	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1492	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1493	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1494	>	assertTrue(f.complete(v1));
1495	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1496	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1497	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1498	>
1499	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1500	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1501	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1502	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1503	>	checkCompletedWithWrappedException(h4, rs[4].ex);
1504	>	checkCompletedWithWrappedException(h5, rs[5].ex);
1505	>	checkCompletedNormally(f, v1);
1506	>	}}
1507
1508		/**
1509	<	* thenCombine result completes normally after normal completion
819	<	* of sources
1509	>	* thenApply result completes normally after normal completion of source
1510		*/
1511	<	public void testThenCombine_normalCompletion1() {
1511	>	public void testThenApply_normalCompletion() {
1512		for (ExecutionMode m : ExecutionMode.values())
1513		for (Integer v1 : new Integer[] { 1, null })
1514	<	for (Integer v2 : new Integer[] { 2, null }) {
825	<
1514	>	{
1515		final CompletableFuture<Integer> f = new CompletableFuture<>();
1516	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
1517	<	final SubtractFunction r = new SubtractFunction();
829	<	final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
830	<
831	<	f.complete(v1);
832	<	checkIncomplete(h);
833	<	assertFalse(r.ran());
834	<	g.complete(v2);
1516	>	final IncFunction[] rs = new IncFunction[4];
1517	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1518
1519	<	checkCompletedNormally(h, subtract(v1, v2));
1519	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1520	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1521	>	checkIncomplete(h0);
1522	>	checkIncomplete(h1);
1523	>	assertTrue(f.complete(v1));
1524	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1525	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1526	>
1527	>	checkCompletedNormally(h0, inc(v1));
1528	>	checkCompletedNormally(h1, inc(v1));
1529	>	checkCompletedNormally(h2, inc(v1));
1530	>	checkCompletedNormally(h3, inc(v1));
1531		checkCompletedNormally(f, v1);
1532	<	checkCompletedNormally(g, v2);
1533	<	}
840	<	}
1532	>	for (IncFunction r : rs) r.assertValue(inc(v1));
1533	>	}}
1534
1535	<	public void testThenCombine_normalCompletion2() {
1535	>	/**
1536	>	* thenApply result completes exceptionally after exceptional
1537	>	* completion of source
1538	>	*/
1539	>	public void testThenApply_exceptionalCompletion() {
1540		for (ExecutionMode m : ExecutionMode.values())
1541	<	for (Integer v1 : new Integer[] { 1, null })
1542	<	for (Integer v2 : new Integer[] { 2, null }) {
1541	>	{
1542	>	final CFException ex = new CFException();
1543	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1544	>	final IncFunction[] rs = new IncFunction[4];
1545	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1546
1547	+	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1548	+	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1549	+	assertTrue(f.completeExceptionally(ex));
1550	+	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1551	+	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1552	+
1553	+	checkCompletedWithWrappedException(h0, ex);
1554	+	checkCompletedWithWrappedException(h1, ex);
1555	+	checkCompletedWithWrappedException(h2, ex);
1556	+	checkCompletedWithWrappedException(h3, ex);
1557	+	checkCompletedExceptionally(f, ex);
1558	+	for (IncFunction r : rs) r.assertNotInvoked();
1559	+	}}
1560	+
1561	+	/**
1562	+	* thenApply result completes exceptionally if source cancelled
1563	+	*/
1564	+	public void testThenApply_sourceCancelled() {
1565	+	for (ExecutionMode m : ExecutionMode.values())
1566	+	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1567	+	{
1568		final CompletableFuture<Integer> f = new CompletableFuture<>();
1569	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
1570	<	final SubtractFunction r = new SubtractFunction();
850	<	final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1569	>	final IncFunction[] rs = new IncFunction[4];
1570	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1571
1572	<	g.complete(v2);
1573	<	checkIncomplete(h);
1574	<	assertFalse(r.ran());
1575	<	f.complete(v1);
1572	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1573	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1574	>	assertTrue(f.cancel(mayInterruptIfRunning));
1575	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1576	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1577
1578	<	checkCompletedNormally(h, subtract(v1, v2));
1579	<	checkCompletedNormally(f, v1);
1580	<	checkCompletedNormally(g, v2);
1581	<	}
1582	<	}
1578	>	checkCompletedWithWrappedCancellationException(h0);
1579	>	checkCompletedWithWrappedCancellationException(h1);
1580	>	checkCompletedWithWrappedCancellationException(h2);
1581	>	checkCompletedWithWrappedCancellationException(h3);
1582	>	checkCancelled(f);
1583	>	for (IncFunction r : rs) r.assertNotInvoked();
1584	>	}}
1585
1586	<	public void testThenCombine_normalCompletion3() {
1586	>	/**
1587	>	* thenApply result completes exceptionally if action does
1588	>	*/
1589	>	public void testThenApply_actionFailed() {
1590		for (ExecutionMode m : ExecutionMode.values())
1591		for (Integer v1 : new Integer[] { 1, null })
1592	<	for (Integer v2 : new Integer[] { 2, null }) {
867	<
1592	>	{
1593		final CompletableFuture<Integer> f = new CompletableFuture<>();
1594	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
1595	<	final SubtractFunction r = new SubtractFunction();
1594	>	final FailingFunction[] rs = new FailingFunction[4];
1595	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingFunction(m);
1596
1597	<	g.complete(v2);
1598	<	f.complete(v1);
1599	<	final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1600	<
1601	<	checkCompletedNormally(h, subtract(v1, v2));
1597	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1598	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1599	>	assertTrue(f.complete(v1));
1600	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1601	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1602	>
1603	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1604	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1605	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1606	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1607		checkCompletedNormally(f, v1);
1608	<	checkCompletedNormally(g, v2);
879	<	}
880	<	}
1608	>	}}
1609
1610	<	public void testThenCombine_normalCompletion4() {
1610	>	/**
1611	>	* thenAccept result completes normally after normal completion of source
1612	>	*/
1613	>	public void testThenAccept_normalCompletion() {
1614		for (ExecutionMode m : ExecutionMode.values())
1615		for (Integer v1 : new Integer[] { 1, null })
1616	<	for (Integer v2 : new Integer[] { 2, null }) {
886	<
1616	>	{
1617		final CompletableFuture<Integer> f = new CompletableFuture<>();
1618	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
1619	<	final SubtractFunction r = new SubtractFunction();
890	<
891	<	f.complete(v1);
892	<	g.complete(v2);
893	<	final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1618	>	final NoopConsumer[] rs = new NoopConsumer[4];
1619	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1620
1621	<	checkCompletedNormally(h, subtract(v1, v2));
1621	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1622	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1623	>	checkIncomplete(h0);
1624	>	checkIncomplete(h1);
1625	>	assertTrue(f.complete(v1));
1626	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1627	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1628	>
1629	>	checkCompletedNormally(h0, null);
1630	>	checkCompletedNormally(h1, null);
1631	>	checkCompletedNormally(h2, null);
1632	>	checkCompletedNormally(h3, null);
1633		checkCompletedNormally(f, v1);
1634	<	checkCompletedNormally(g, v2);
1635	<	}
899	<	}
1634	>	for (NoopConsumer r : rs) r.assertValue(v1);
1635	>	}}
1636
1637		/**
1638	<	* thenCombine result completes exceptionally after exceptional
1639	<	* completion of either source
1638	>	* thenAccept result completes exceptionally after exceptional
1639	>	* completion of source
1640		*/
1641	<	public void testThenCombine_exceptionalCompletion1() {
1641	>	public void testThenAccept_exceptionalCompletion() {
1642		for (ExecutionMode m : ExecutionMode.values())
1643	<	for (Integer v1 : new Integer[] { 1, null }) {
1643	>	{
1644	>	final CFException ex = new CFException();
1645	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1646	>	final NoopConsumer[] rs = new NoopConsumer[4];
1647	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1648	>
1649	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1650	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1651	>	assertTrue(f.completeExceptionally(ex));
1652	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1653	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1654	>
1655	>	checkCompletedWithWrappedException(h0, ex);
1656	>	checkCompletedWithWrappedException(h1, ex);
1657	>	checkCompletedWithWrappedException(h2, ex);
1658	>	checkCompletedWithWrappedException(h3, ex);
1659	>	checkCompletedExceptionally(f, ex);
1660	>	for (NoopConsumer r : rs) r.assertNotInvoked();
1661	>	}}
1662
1663	+	/**
1664	+	* thenAccept result completes exceptionally if source cancelled
1665	+	*/
1666	+	public void testThenAccept_sourceCancelled() {
1667	+	for (ExecutionMode m : ExecutionMode.values())
1668	+	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1669	+	{
1670		final CompletableFuture<Integer> f = new CompletableFuture<>();
1671	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
1672	<	final SubtractFunction r = new SubtractFunction();
912	<	final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
913	<	final CFException ex = new CFException();
1671	>	final NoopConsumer[] rs = new NoopConsumer[4];
1672	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1673
1674	<	f.completeExceptionally(ex);
1675	<	checkIncomplete(h);
1676	<	g.complete(v1);
1674	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1675	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1676	>	assertTrue(f.cancel(mayInterruptIfRunning));
1677	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1678	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1679
1680	<	checkCompletedWithWrappedCFException(h, ex);
1681	<	checkCompletedWithWrappedCFException(f, ex);
1682	<	assertFalse(r.ran());
1683	<	checkCompletedNormally(g, v1);
1684	<	}
1685	<	}
1680	>	checkCompletedWithWrappedCancellationException(h0);
1681	>	checkCompletedWithWrappedCancellationException(h1);
1682	>	checkCompletedWithWrappedCancellationException(h2);
1683	>	checkCompletedWithWrappedCancellationException(h3);
1684	>	checkCancelled(f);
1685	>	for (NoopConsumer r : rs) r.assertNotInvoked();
1686	>	}}
1687
1688	<	public void testThenCombine_exceptionalCompletion2() {
1688	>	/**
1689	>	* thenAccept result completes exceptionally if action does
1690	>	*/
1691	>	public void testThenAccept_actionFailed() {
1692		for (ExecutionMode m : ExecutionMode.values())
1693	<	for (Integer v1 : new Integer[] { 1, null }) {
1694	<
1693	>	for (Integer v1 : new Integer[] { 1, null })
1694	>	{
1695		final CompletableFuture<Integer> f = new CompletableFuture<>();
1696	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
1697	<	final SubtractFunction r = new SubtractFunction();
933	<	final CompletableFuture<Integer> h = m.thenCombine(f, g, subtract);
934	<	final CFException ex = new CFException();
935	<
936	<	g.completeExceptionally(ex);
937	<	checkIncomplete(h);
938	<	f.complete(v1);
1696	>	final FailingConsumer[] rs = new FailingConsumer[4];
1697	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingConsumer(m);
1698
1699	<	checkCompletedWithWrappedCFException(h, ex);
1700	<	checkCompletedWithWrappedCFException(g, ex);
1701	<	assertFalse(r.ran());
1699	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1700	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1701	>	assertTrue(f.complete(v1));
1702	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1703	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1704	>
1705	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1706	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1707	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1708	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1709		checkCompletedNormally(f, v1);
1710	<	}
945	<	}
1710	>	}}
1711
1712	<	public void testThenCombine_exceptionalCompletion3() {
1712	>	/**
1713	>	* thenCombine result completes normally after normal completion
1714	>	* of sources
1715	>	*/
1716	>	public void testThenCombine_normalCompletion() {
1717		for (ExecutionMode m : ExecutionMode.values())
1718	<	for (Integer v1 : new Integer[] { 1, null }) {
1719	<
1718	>	for (boolean fFirst : new boolean[] { true, false })
1719	>	for (Integer v1 : new Integer[] { 1, null })
1720	>	for (Integer v2 : new Integer[] { 2, null })
1721	>	{
1722		final CompletableFuture<Integer> f = new CompletableFuture<>();
1723		final CompletableFuture<Integer> g = new CompletableFuture<>();
1724	<	final SubtractFunction r = new SubtractFunction();
1725	<	final CFException ex = new CFException();
1724	>	final SubtractFunction[] rs = new SubtractFunction[6];
1725	>	for (int i = 0; i < rs.length; i++) rs[i] = new SubtractFunction(m);
1726
1727	<	g.completeExceptionally(ex);
1728	<	f.complete(v1);
1729	<	final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1727	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1728	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1729	>	final Integer w1 =  fFirst ? v1 : v2;
1730	>	final Integer w2 = !fFirst ? v1 : v2;
1731	>
1732	>	final CompletableFuture<Integer> h0 = m.thenCombine(f, g, rs[0]);
1733	>	final CompletableFuture<Integer> h1 = m.thenCombine(fst, fst, rs[1]);
1734	>	assertTrue(fst.complete(w1));
1735	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, rs[2]);
1736	>	final CompletableFuture<Integer> h3 = m.thenCombine(fst, fst, rs[3]);
1737	>	checkIncomplete(h0); rs[0].assertNotInvoked();
1738	>	checkIncomplete(h2); rs[2].assertNotInvoked();
1739	>	checkCompletedNormally(h1, subtract(w1, w1));
1740	>	checkCompletedNormally(h3, subtract(w1, w1));
1741	>	rs[1].assertValue(subtract(w1, w1));
1742	>	rs[3].assertValue(subtract(w1, w1));
1743	>	assertTrue(snd.complete(w2));
1744	>	final CompletableFuture<Integer> h4 = m.thenCombine(f, g, rs[4]);
1745	>
1746	>	checkCompletedNormally(h0, subtract(v1, v2));
1747	>	checkCompletedNormally(h2, subtract(v1, v2));
1748	>	checkCompletedNormally(h4, subtract(v1, v2));
1749	>	rs[0].assertValue(subtract(v1, v2));
1750	>	rs[2].assertValue(subtract(v1, v2));
1751	>	rs[4].assertValue(subtract(v1, v2));
1752
960	–	checkCompletedWithWrappedCFException(h, ex);
961	–	checkCompletedWithWrappedCFException(g, ex);
962	–	assertFalse(r.ran());
1753		checkCompletedNormally(f, v1);
1754	<	}
1755	<	}
1754	>	checkCompletedNormally(g, v2);
1755	>	}}
1756
1757	<	public void testThenCombine_exceptionalCompletion4() {
1757	>	/**
1758	>	* thenCombine result completes exceptionally after exceptional
1759	>	* completion of either source
1760	>	*/
1761	>	public void testThenCombine_exceptionalCompletion() throws Throwable {
1762		for (ExecutionMode m : ExecutionMode.values())
1763	<	for (Integer v1 : new Integer[] { 1, null }) {
1764	<
1763	>	for (boolean fFirst : new boolean[] { true, false })
1764	>	for (boolean failFirst : new boolean[] { true, false })
1765	>	for (Integer v1 : new Integer[] { 1, null })
1766	>	{
1767		final CompletableFuture<Integer> f = new CompletableFuture<>();
1768		final CompletableFuture<Integer> g = new CompletableFuture<>();
973	–	final SubtractFunction r = new SubtractFunction();
1769		final CFException ex = new CFException();
1770	+	final SubtractFunction r1 = new SubtractFunction(m);
1771	+	final SubtractFunction r2 = new SubtractFunction(m);
1772	+	final SubtractFunction r3 = new SubtractFunction(m);
1773	+
1774	+	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1775	+	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1776	+	final Callable<Boolean> complete1 = failFirst ?
1777	+	() -> fst.completeExceptionally(ex) :
1778	+	() -> fst.complete(v1);
1779	+	final Callable<Boolean> complete2 = failFirst ?
1780	+	() -> snd.complete(v1) :
1781	+	() -> snd.completeExceptionally(ex);
1782	+
1783	+	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1784	+	assertTrue(complete1.call());
1785	+	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1786	+	checkIncomplete(h1);
1787	+	checkIncomplete(h2);
1788	+	assertTrue(complete2.call());
1789	+	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1790	+
1791	+	checkCompletedWithWrappedException(h1, ex);
1792	+	checkCompletedWithWrappedException(h2, ex);
1793	+	checkCompletedWithWrappedException(h3, ex);
1794	+	r1.assertNotInvoked();
1795	+	r2.assertNotInvoked();
1796	+	r3.assertNotInvoked();
1797	+	checkCompletedNormally(failFirst ? snd : fst, v1);
1798	+	checkCompletedExceptionally(failFirst ? fst : snd, ex);
1799	+	}}
1800
1801	<	f.completeExceptionally(ex);
1802	<	g.complete(v1);
1803	<	final CompletableFuture<Integer> h = m.thenCombine(f, g, subtract);
1804	<
1805	<	checkCompletedWithWrappedCFException(h, ex);
1806	<	checkCompletedWithWrappedCFException(f, ex);
1807	<	assertFalse(r.ran());
1808	<	checkCompletedNormally(g, v1);
1809	<	}
1810	<	}
1801	>	/**
1802	>	* thenCombine result completes exceptionally if either source cancelled
1803	>	*/
1804	>	public void testThenCombine_sourceCancelled() throws Throwable {
1805	>	for (ExecutionMode m : ExecutionMode.values())
1806	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1807	>	for (boolean fFirst : new boolean[] { true, false })
1808	>	for (boolean failFirst : new boolean[] { true, false })
1809	>	for (Integer v1 : new Integer[] { 1, null })
1810	>	{
1811	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1812	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1813	>	final SubtractFunction r1 = new SubtractFunction(m);
1814	>	final SubtractFunction r2 = new SubtractFunction(m);
1815	>	final SubtractFunction r3 = new SubtractFunction(m);
1816	>
1817	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1818	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1819	>	final Callable<Boolean> complete1 = failFirst ?
1820	>	() -> fst.cancel(mayInterruptIfRunning) :
1821	>	() -> fst.complete(v1);
1822	>	final Callable<Boolean> complete2 = failFirst ?
1823	>	() -> snd.complete(v1) :
1824	>	() -> snd.cancel(mayInterruptIfRunning);
1825	>
1826	>	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1827	>	assertTrue(complete1.call());
1828	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1829	>	checkIncomplete(h1);
1830	>	checkIncomplete(h2);
1831	>	assertTrue(complete2.call());
1832	>	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1833	>
1834	>	checkCompletedWithWrappedCancellationException(h1);
1835	>	checkCompletedWithWrappedCancellationException(h2);
1836	>	checkCompletedWithWrappedCancellationException(h3);
1837	>	r1.assertNotInvoked();
1838	>	r2.assertNotInvoked();
1839	>	r3.assertNotInvoked();
1840	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1841	>	checkCancelled(failFirst ? fst : snd);
1842	>	}}
1843
1844		/**
1845		* thenCombine result completes exceptionally if action does
1846		*/
1847	<	public void testThenCombine_actionFailed1() {
1847	>	public void testThenCombine_actionFailed() {
1848		for (ExecutionMode m : ExecutionMode.values())
1849	+	for (boolean fFirst : new boolean[] { true, false })
1850		for (Integer v1 : new Integer[] { 1, null })
1851	<	for (Integer v2 : new Integer[] { 2, null }) {
1852	<
1851	>	for (Integer v2 : new Integer[] { 2, null })
1852	>	{
1853		final CompletableFuture<Integer> f = new CompletableFuture<>();
1854		final CompletableFuture<Integer> g = new CompletableFuture<>();
1855	<	final FailingBiFunction r = new FailingBiFunction();
1856	<	final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1857	<
1858	<	f.complete(v1);
1859	<	checkIncomplete(h);
1860	<	g.complete(v2);
1861	<
1862	<	checkCompletedWithWrappedCFException(h);
1855	>	final FailingBiFunction r1 = new FailingBiFunction(m);
1856	>	final FailingBiFunction r2 = new FailingBiFunction(m);
1857	>	final FailingBiFunction r3 = new FailingBiFunction(m);
1858	>
1859	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1860	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1861	>	final Integer w1 =  fFirst ? v1 : v2;
1862	>	final Integer w2 = !fFirst ? v1 : v2;
1863	>
1864	>	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1865	>	assertTrue(fst.complete(w1));
1866	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1867	>	assertTrue(snd.complete(w2));
1868	>	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1869	>
1870	>	checkCompletedWithWrappedException(h1, r1.ex);
1871	>	checkCompletedWithWrappedException(h2, r2.ex);
1872	>	checkCompletedWithWrappedException(h3, r3.ex);
1873	>	r1.assertInvoked();
1874	>	r2.assertInvoked();
1875	>	r3.assertInvoked();
1876		checkCompletedNormally(f, v1);
1877		checkCompletedNormally(g, v2);
1878	<	}
1008	<	}
1878	>	}}
1879
1880	<	public void testThenCombine_actionFailed2() {
1880	>	/**
1881	>	* thenAcceptBoth result completes normally after normal
1882	>	* completion of sources
1883	>	*/
1884	>	public void testThenAcceptBoth_normalCompletion() {
1885		for (ExecutionMode m : ExecutionMode.values())
1886	+	for (boolean fFirst : new boolean[] { true, false })
1887		for (Integer v1 : new Integer[] { 1, null })
1888	<	for (Integer v2 : new Integer[] { 2, null }) {
1889	<
1888	>	for (Integer v2 : new Integer[] { 2, null })
1889	>	{
1890		final CompletableFuture<Integer> f = new CompletableFuture<>();
1891		final CompletableFuture<Integer> g = new CompletableFuture<>();
1892	<	final FailingBiFunction r = new FailingBiFunction();
1893	<	final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1894	<
1895	<	g.complete(v2);
1896	<	checkIncomplete(h);
1897	<	f.complete(v1);
1898	<
1899	<	checkCompletedWithWrappedCFException(h);
1892	>	final SubtractAction r1 = new SubtractAction(m);
1893	>	final SubtractAction r2 = new SubtractAction(m);
1894	>	final SubtractAction r3 = new SubtractAction(m);
1895	>
1896	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1897	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1898	>	final Integer w1 =  fFirst ? v1 : v2;
1899	>	final Integer w2 = !fFirst ? v1 : v2;
1900	>
1901	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1902	>	assertTrue(fst.complete(w1));
1903	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1904	>	checkIncomplete(h1);
1905	>	checkIncomplete(h2);
1906	>	r1.assertNotInvoked();
1907	>	r2.assertNotInvoked();
1908	>	assertTrue(snd.complete(w2));
1909	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1910	>
1911	>	checkCompletedNormally(h1, null);
1912	>	checkCompletedNormally(h2, null);
1913	>	checkCompletedNormally(h3, null);
1914	>	r1.assertValue(subtract(v1, v2));
1915	>	r2.assertValue(subtract(v1, v2));
1916	>	r3.assertValue(subtract(v1, v2));
1917		checkCompletedNormally(f, v1);
1918		checkCompletedNormally(g, v2);
1919	<	}
1028	<	}
1919	>	}}
1920
1921		/**
1922	<	* thenCombine result completes exceptionally if either source cancelled
1922	>	* thenAcceptBoth result completes exceptionally after exceptional
1923	>	* completion of either source
1924		*/
1925	<	public void testThenCombine_sourceCancelled1() {
1925	>	public void testThenAcceptBoth_exceptionalCompletion() throws Throwable {
1926		for (ExecutionMode m : ExecutionMode.values())
1927	<	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1928	<	for (Integer v1 : new Integer[] { 1, null }) {
1929	<
1927	>	for (boolean fFirst : new boolean[] { true, false })
1928	>	for (boolean failFirst : new boolean[] { true, false })
1929	>	for (Integer v1 : new Integer[] { 1, null })
1930	>	{
1931		final CompletableFuture<Integer> f = new CompletableFuture<>();
1932		final CompletableFuture<Integer> g = new CompletableFuture<>();
1933	<	final SubtractFunction r = new SubtractFunction();
1934	<	final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1935	<
1936	<	assertTrue(f.cancel(mayInterruptIfRunning));
1937	<	checkIncomplete(h);
1938	<	g.complete(v1);
1939	<
1940	<	checkCompletedWithWrappedCancellationException(h);
1941	<	checkCancelled(f);
1942	<	assertFalse(r.ran());
1943	<	checkCompletedNormally(g, v1);
1944	<	}
1945	<	}
1933	>	final CFException ex = new CFException();
1934	>	final SubtractAction r1 = new SubtractAction(m);
1935	>	final SubtractAction r2 = new SubtractAction(m);
1936	>	final SubtractAction r3 = new SubtractAction(m);
1937	>
1938	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1939	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1940	>	final Callable<Boolean> complete1 = failFirst ?
1941	>	() -> fst.completeExceptionally(ex) :
1942	>	() -> fst.complete(v1);
1943	>	final Callable<Boolean> complete2 = failFirst ?
1944	>	() -> snd.complete(v1) :
1945	>	() -> snd.completeExceptionally(ex);
1946	>
1947	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1948	>	assertTrue(complete1.call());
1949	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1950	>	checkIncomplete(h1);
1951	>	checkIncomplete(h2);
1952	>	assertTrue(complete2.call());
1953	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1954	>
1955	>	checkCompletedWithWrappedException(h1, ex);
1956	>	checkCompletedWithWrappedException(h2, ex);
1957	>	checkCompletedWithWrappedException(h3, ex);
1958	>	r1.assertNotInvoked();
1959	>	r2.assertNotInvoked();
1960	>	r3.assertNotInvoked();
1961	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1962	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
1963	>	}}
1964
1965	<	public void testThenCombine_sourceCancelled2() {
1965	>	/**
1966	>	* thenAcceptBoth result completes exceptionally if either source cancelled
1967	>	*/
1968	>	public void testThenAcceptBoth_sourceCancelled() throws Throwable {
1969		for (ExecutionMode m : ExecutionMode.values())
1970		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1971	<	for (Integer v1 : new Integer[] { 1, null }) {
1972	<
1971	>	for (boolean fFirst : new boolean[] { true, false })
1972	>	for (boolean failFirst : new boolean[] { true, false })
1973	>	for (Integer v1 : new Integer[] { 1, null })
1974	>	{
1975		final CompletableFuture<Integer> f = new CompletableFuture<>();
1976		final CompletableFuture<Integer> g = new CompletableFuture<>();
1977	<	final SubtractFunction r = new SubtractFunction();
1978	<	final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1979	<
1980	<	assertTrue(g.cancel(mayInterruptIfRunning));
1981	<	checkIncomplete(h);
1982	<	f.complete(v1);
1983	<
1984	<	checkCompletedWithWrappedCancellationException(h);
1985	<	checkCancelled(g);
1986	<	assertFalse(r.ran());
1987	<	checkCompletedNormally(f, v1);
1988	<	}
1989	<	}
1977	>	final SubtractAction r1 = new SubtractAction(m);
1978	>	final SubtractAction r2 = new SubtractAction(m);
1979	>	final SubtractAction r3 = new SubtractAction(m);
1980	>
1981	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1982	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1983	>	final Callable<Boolean> complete1 = failFirst ?
1984	>	() -> fst.cancel(mayInterruptIfRunning) :
1985	>	() -> fst.complete(v1);
1986	>	final Callable<Boolean> complete2 = failFirst ?
1987	>	() -> snd.complete(v1) :
1988	>	() -> snd.cancel(mayInterruptIfRunning);
1989	>
1990	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1991	>	assertTrue(complete1.call());
1992	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1993	>	checkIncomplete(h1);
1994	>	checkIncomplete(h2);
1995	>	assertTrue(complete2.call());
1996	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1997	>
1998	>	checkCompletedWithWrappedCancellationException(h1);
1999	>	checkCompletedWithWrappedCancellationException(h2);
2000	>	checkCompletedWithWrappedCancellationException(h3);
2001	>	r1.assertNotInvoked();
2002	>	r2.assertNotInvoked();
2003	>	r3.assertNotInvoked();
2004	>	checkCompletedNormally(failFirst ? snd : fst, v1);
2005	>	checkCancelled(failFirst ? fst : snd);
2006	>	}}
2007
2008	<	public void testThenCombine_sourceCancelled3() {
2008	>	/**
2009	>	* thenAcceptBoth result completes exceptionally if action does
2010	>	*/
2011	>	public void testThenAcceptBoth_actionFailed() {
2012		for (ExecutionMode m : ExecutionMode.values())
2013	<	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2014	<	for (Integer v1 : new Integer[] { 1, null }) {
2015	<
2013	>	for (boolean fFirst : new boolean[] { true, false })
2014	>	for (Integer v1 : new Integer[] { 1, null })
2015	>	for (Integer v2 : new Integer[] { 2, null })
2016	>	{
2017		final CompletableFuture<Integer> f = new CompletableFuture<>();
2018		final CompletableFuture<Integer> g = new CompletableFuture<>();
2019	<	final SubtractFunction r = new SubtractFunction();
2020	<
2021	<	assertTrue(g.cancel(mayInterruptIfRunning));
2022	<	f.complete(v1);
2023	<	final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
2024	<
2025	<	checkCompletedWithWrappedCancellationException(h);
2026	<	checkCancelled(g);
2027	<	assertFalse(r.ran());
2019	>	final FailingBiConsumer r1 = new FailingBiConsumer(m);
2020	>	final FailingBiConsumer r2 = new FailingBiConsumer(m);
2021	>	final FailingBiConsumer r3 = new FailingBiConsumer(m);
2022	>
2023	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2024	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2025	>	final Integer w1 =  fFirst ? v1 : v2;
2026	>	final Integer w2 = !fFirst ? v1 : v2;
2027	>
2028	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
2029	>	assertTrue(fst.complete(w1));
2030	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
2031	>	assertTrue(snd.complete(w2));
2032	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
2033	>
2034	>	checkCompletedWithWrappedException(h1, r1.ex);
2035	>	checkCompletedWithWrappedException(h2, r2.ex);
2036	>	checkCompletedWithWrappedException(h3, r3.ex);
2037	>	r1.assertInvoked();
2038	>	r2.assertInvoked();
2039	>	r3.assertInvoked();
2040		checkCompletedNormally(f, v1);
2041	<	}
2042	<	}
1094	<
1095	<	public void testThenCombine_sourceCancelled4() {
1096	<	for (ExecutionMode m : ExecutionMode.values())
1097	<	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1098	<	for (Integer v1 : new Integer[] { 1, null }) {
1099	<
1100	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
1101	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
1102	<	final SubtractFunction r = new SubtractFunction();
1103	<
1104	<	assertTrue(f.cancel(mayInterruptIfRunning));
1105	<	g.complete(v1);
1106	<	final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1107	<
1108	<	checkCompletedWithWrappedCancellationException(h);
1109	<	checkCancelled(f);
1110	<	assertFalse(r.ran());
1111	<	checkCompletedNormally(g, v1);
1112	<	}
1113	<	}
2041	>	checkCompletedNormally(g, v2);
2042	>	}}
2043
2044		/**
2045	<	* thenAcceptBoth result completes normally after normal
2045	>	* runAfterBoth result completes normally after normal
2046		* completion of sources
2047		*/
2048	<	public void testThenAcceptBoth_normalCompletion1() {
2048	>	public void testRunAfterBoth_normalCompletion() {
2049		for (ExecutionMode m : ExecutionMode.values())
2050	+	for (boolean fFirst : new boolean[] { true, false })
2051		for (Integer v1 : new Integer[] { 1, null })
2052	<	for (Integer v2 : new Integer[] { 2, null }) {
2053	<
2052	>	for (Integer v2 : new Integer[] { 2, null })
2053	>	{
2054		final CompletableFuture<Integer> f = new CompletableFuture<>();
2055		final CompletableFuture<Integer> g = new CompletableFuture<>();
2056	<	final SubtractAction r = new SubtractAction();
2057	<	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
2058	<
2059	<	f.complete(v1);
2060	<	checkIncomplete(h);
2061	<	assertEquals(r.value, 0);
2062	<	g.complete(v2);
2063	<
2064	<	checkCompletedNormally(h, null);
2065	<	assertEquals(r.value, subtract(v1, v2));
2056	>	final Noop r1 = new Noop(m);
2057	>	final Noop r2 = new Noop(m);
2058	>	final Noop r3 = new Noop(m);
2059	>
2060	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2061	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2062	>	final Integer w1 =  fFirst ? v1 : v2;
2063	>	final Integer w2 = !fFirst ? v1 : v2;
2064	>
2065	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2066	>	assertTrue(fst.complete(w1));
2067	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2068	>	checkIncomplete(h1);
2069	>	checkIncomplete(h2);
2070	>	r1.assertNotInvoked();
2071	>	r2.assertNotInvoked();
2072	>	assertTrue(snd.complete(w2));
2073	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2074	>
2075	>	checkCompletedNormally(h1, null);
2076	>	checkCompletedNormally(h2, null);
2077	>	checkCompletedNormally(h3, null);
2078	>	r1.assertInvoked();
2079	>	r2.assertInvoked();
2080	>	r3.assertInvoked();
2081		checkCompletedNormally(f, v1);
2082		checkCompletedNormally(g, v2);
2083	<	}
1139	<	}
2083	>	}}
2084
2085	<	public void testThenAcceptBoth_normalCompletion2() {
2085	>	/**
2086	>	* runAfterBoth result completes exceptionally after exceptional
2087	>	* completion of either source
2088	>	*/
2089	>	public void testRunAfterBoth_exceptionalCompletion() throws Throwable {
2090		for (ExecutionMode m : ExecutionMode.values())
2091	+	for (boolean fFirst : new boolean[] { true, false })
2092	+	for (boolean failFirst : new boolean[] { true, false })
2093		for (Integer v1 : new Integer[] { 1, null })
2094	<	for (Integer v2 : new Integer[] { 2, null }) {
1145	<
2094	>	{
2095		final CompletableFuture<Integer> f = new CompletableFuture<>();
2096		final CompletableFuture<Integer> g = new CompletableFuture<>();
2097	<	final SubtractAction r = new SubtractAction();
2098	<	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
2099	<
2100	<	g.complete(v2);
2101	<	checkIncomplete(h);
2102	<	assertEquals(r.value, 0);
2103	<	f.complete(v1);
2104	<
2105	<	checkCompletedNormally(h, null);
2106	<	assertEquals(r.value, subtract(v1, v2));
2107	<	checkCompletedNormally(f, v1);
2108	<	checkCompletedNormally(g, v2);
2109	<	}
2110	<	}
2097	>	final CFException ex = new CFException();
2098	>	final Noop r1 = new Noop(m);
2099	>	final Noop r2 = new Noop(m);
2100	>	final Noop r3 = new Noop(m);
2101	>
2102	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2103	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2104	>	final Callable<Boolean> complete1 = failFirst ?
2105	>	() -> fst.completeExceptionally(ex) :
2106	>	() -> fst.complete(v1);
2107	>	final Callable<Boolean> complete2 = failFirst ?
2108	>	() -> snd.complete(v1) :
2109	>	() -> snd.completeExceptionally(ex);
2110	>
2111	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2112	>	assertTrue(complete1.call());
2113	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2114	>	checkIncomplete(h1);
2115	>	checkIncomplete(h2);
2116	>	assertTrue(complete2.call());
2117	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2118	>
2119	>	checkCompletedWithWrappedException(h1, ex);
2120	>	checkCompletedWithWrappedException(h2, ex);
2121	>	checkCompletedWithWrappedException(h3, ex);
2122	>	r1.assertNotInvoked();
2123	>	r2.assertNotInvoked();
2124	>	r3.assertNotInvoked();
2125	>	checkCompletedNormally(failFirst ? snd : fst, v1);
2126	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
2127	>	}}
2128
2129	<	public void testThenAcceptBoth_normalCompletion3() {
2129	>	/**
2130	>	* runAfterBoth result completes exceptionally if either source cancelled
2131	>	*/
2132	>	public void testRunAfterBoth_sourceCancelled() throws Throwable {
2133		for (ExecutionMode m : ExecutionMode.values())
2134	+	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2135	+	for (boolean fFirst : new boolean[] { true, false })
2136	+	for (boolean failFirst : new boolean[] { true, false })
2137		for (Integer v1 : new Integer[] { 1, null })
2138	<	for (Integer v2 : new Integer[] { 2, null }) {
1167	<
2138	>	{
2139		final CompletableFuture<Integer> f = new CompletableFuture<>();
2140		final CompletableFuture<Integer> g = new CompletableFuture<>();
2141	<	final SubtractAction r = new SubtractAction();
2142	<
2143	<	g.complete(v2);
2144	<	f.complete(v1);
2145	<	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
2141	>	final Noop r1 = new Noop(m);
2142	>	final Noop r2 = new Noop(m);
2143	>	final Noop r3 = new Noop(m);
2144	>
2145	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2146	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2147	>	final Callable<Boolean> complete1 = failFirst ?
2148	>	() -> fst.cancel(mayInterruptIfRunning) :
2149	>	() -> fst.complete(v1);
2150	>	final Callable<Boolean> complete2 = failFirst ?
2151	>	() -> snd.complete(v1) :
2152	>	() -> snd.cancel(mayInterruptIfRunning);
2153	>
2154	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2155	>	assertTrue(complete1.call());
2156	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2157	>	checkIncomplete(h1);
2158	>	checkIncomplete(h2);
2159	>	assertTrue(complete2.call());
2160	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2161	>
2162	>	checkCompletedWithWrappedCancellationException(h1);
2163	>	checkCompletedWithWrappedCancellationException(h2);
2164	>	checkCompletedWithWrappedCancellationException(h3);
2165	>	r1.assertNotInvoked();
2166	>	r2.assertNotInvoked();
2167	>	r3.assertNotInvoked();
2168	>	checkCompletedNormally(failFirst ? snd : fst, v1);
2169	>	checkCancelled(failFirst ? fst : snd);
2170	>	}}
2171
2172	<	checkCompletedNormally(h, null);
2173	<	assertEquals(r.value, subtract(v1, v2));
2172	>	/**
2173	>	* runAfterBoth result completes exceptionally if action does
2174	>	*/
2175	>	public void testRunAfterBoth_actionFailed() {
2176	>	for (ExecutionMode m : ExecutionMode.values())
2177	>	for (boolean fFirst : new boolean[] { true, false })
2178	>	for (Integer v1 : new Integer[] { 1, null })
2179	>	for (Integer v2 : new Integer[] { 2, null })
2180	>	{
2181	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2182	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2183	>	final FailingRunnable r1 = new FailingRunnable(m);
2184	>	final FailingRunnable r2 = new FailingRunnable(m);
2185	>	final FailingRunnable r3 = new FailingRunnable(m);
2186	>
2187	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2188	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2189	>	final Integer w1 =  fFirst ? v1 : v2;
2190	>	final Integer w2 = !fFirst ? v1 : v2;
2191	>
2192	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2193	>	assertTrue(fst.complete(w1));
2194	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2195	>	assertTrue(snd.complete(w2));
2196	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2197	>
2198	>	checkCompletedWithWrappedException(h1, r1.ex);
2199	>	checkCompletedWithWrappedException(h2, r2.ex);
2200	>	checkCompletedWithWrappedException(h3, r3.ex);
2201	>	r1.assertInvoked();
2202	>	r2.assertInvoked();
2203	>	r3.assertInvoked();
2204		checkCompletedNormally(f, v1);
2205		checkCompletedNormally(g, v2);
2206	<	}
1181	<	}
2206	>	}}
2207
2208	<	public void testThenAcceptBoth_normalCompletion4() {
2208	>	/**
2209	>	* applyToEither result completes normally after normal completion
2210	>	* of either source
2211	>	*/
2212	>	public void testApplyToEither_normalCompletion() {
2213		for (ExecutionMode m : ExecutionMode.values())
2214		for (Integer v1 : new Integer[] { 1, null })
2215	<	for (Integer v2 : new Integer[] { 2, null }) {
2216	<
2215	>	for (Integer v2 : new Integer[] { 2, null })
2216	>	{
2217		final CompletableFuture<Integer> f = new CompletableFuture<>();
2218		final CompletableFuture<Integer> g = new CompletableFuture<>();
2219	<	final SubtractAction r = new SubtractAction();
2219	>	final IncFunction[] rs = new IncFunction[6];
2220	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2221
2222	+	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2223	+	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2224	+	checkIncomplete(h0);
2225	+	checkIncomplete(h1);
2226	+	rs[0].assertNotInvoked();
2227	+	rs[1].assertNotInvoked();
2228		f.complete(v1);
2229	+	checkCompletedNormally(h0, inc(v1));
2230	+	checkCompletedNormally(h1, inc(v1));
2231	+	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2232	+	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2233	+	checkCompletedNormally(h2, inc(v1));
2234	+	checkCompletedNormally(h3, inc(v1));
2235		g.complete(v2);
1194	–	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
2236
2237	<	checkCompletedNormally(h, null);
2238	<	assertEquals(r.value, subtract(v1, v2));
2237	>	// unspecified behavior - both source completions available
2238	>	final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2239	>	final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2240	>	rs[4].assertValue(h4.join());
2241	>	rs[5].assertValue(h5.join());
2242	>	assertTrue(Objects.equals(inc(v1), h4.join()) ||
2243	>	Objects.equals(inc(v2), h4.join()));
2244	>	assertTrue(Objects.equals(inc(v1), h5.join()) ||
2245	>	Objects.equals(inc(v2), h5.join()));
2246	>
2247		checkCompletedNormally(f, v1);
2248		checkCompletedNormally(g, v2);
2249	<	}
2250	<	}
2249	>	checkCompletedNormally(h0, inc(v1));
2250	>	checkCompletedNormally(h1, inc(v1));
2251	>	checkCompletedNormally(h2, inc(v1));
2252	>	checkCompletedNormally(h3, inc(v1));
2253	>	for (int i = 0; i < 4; i++) rs[i].assertValue(inc(v1));
2254	>	}}
2255
2256		/**
2257	<	* thenAcceptBoth result completes exceptionally after exceptional
2257	>	* applyToEither result completes exceptionally after exceptional
2258		* completion of either source
2259		*/
2260	<	public void testThenAcceptBoth_exceptionalCompletion1() {
2260	>	public void testApplyToEither_exceptionalCompletion() {
2261		for (ExecutionMode m : ExecutionMode.values())
2262	<	for (Integer v1 : new Integer[] { 1, null }) {
2263	<
2262	>	for (Integer v1 : new Integer[] { 1, null })
2263	>	{
2264		final CompletableFuture<Integer> f = new CompletableFuture<>();
2265		final CompletableFuture<Integer> g = new CompletableFuture<>();
1213	–	final SubtractAction r = new SubtractAction();
1214	–	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
2266		final CFException ex = new CFException();
2267	+	final IncFunction[] rs = new IncFunction[6];
2268	+	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2269
2270	+	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2271	+	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2272	+	checkIncomplete(h0);
2273	+	checkIncomplete(h1);
2274	+	rs[0].assertNotInvoked();
2275	+	rs[1].assertNotInvoked();
2276		f.completeExceptionally(ex);
2277	<	checkIncomplete(h);
2277	>	checkCompletedWithWrappedException(h0, ex);
2278	>	checkCompletedWithWrappedException(h1, ex);
2279	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2280	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2281	>	checkCompletedWithWrappedException(h2, ex);
2282	>	checkCompletedWithWrappedException(h3, ex);
2283		g.complete(v1);
2284
2285	<	checkCompletedWithWrappedCFException(h, ex);
2286	<	checkCompletedWithWrappedCFException(f, ex);
2287	<	assertFalse(r.ran());
2288	<	checkCompletedNormally(g, v1);
2285	>	// unspecified behavior - both source completions available
2286	>	final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2287	>	final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2288	>	try {
2289	>	assertEquals(inc(v1), h4.join());
2290	>	rs[4].assertValue(inc(v1));
2291	>	} catch (CompletionException ok) {
2292	>	checkCompletedWithWrappedException(h4, ex);
2293	>	rs[4].assertNotInvoked();
2294	>	}
2295	>	try {
2296	>	assertEquals(inc(v1), h5.join());
2297	>	rs[5].assertValue(inc(v1));
2298	>	} catch (CompletionException ok) {
2299	>	checkCompletedWithWrappedException(h5, ex);
2300	>	rs[5].assertNotInvoked();
2301		}
1226	–	}
2302
2303	<	public void testThenAcceptBoth_exceptionalCompletion2() {
2304	<	for (ExecutionMode m : ExecutionMode.values())
2305	<	for (Integer v1 : new Integer[] { 1, null }) {
2303	>	checkCompletedExceptionally(f, ex);
2304	>	checkCompletedNormally(g, v1);
2305	>	checkCompletedWithWrappedException(h0, ex);
2306	>	checkCompletedWithWrappedException(h1, ex);
2307	>	checkCompletedWithWrappedException(h2, ex);
2308	>	checkCompletedWithWrappedException(h3, ex);
2309	>	checkCompletedWithWrappedException(h4, ex);
2310	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2311	>	}}
2312
2313	+	public void testApplyToEither_exceptionalCompletion2() {
2314	+	for (ExecutionMode m : ExecutionMode.values())
2315	+	for (boolean fFirst : new boolean[] { true, false })
2316	+	for (Integer v1 : new Integer[] { 1, null })
2317	+	{
2318		final CompletableFuture<Integer> f = new CompletableFuture<>();
2319		final CompletableFuture<Integer> g = new CompletableFuture<>();
1234	–	final SubtractAction r = new SubtractAction();
1235	–	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
2320		final CFException ex = new CFException();
2321	+	final IncFunction[] rs = new IncFunction[6];
2322	+	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2323
2324	<	g.completeExceptionally(ex);
2325	<	checkIncomplete(h);
2326	<	f.complete(v1);
2324	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2325	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2326	>	assertTrue(fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2327	>	assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2328	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2329	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2330
2331	<	checkCompletedWithWrappedCFException(h, ex);
2332	<	checkCompletedWithWrappedCFException(g, ex);
2333	<	assertFalse(r.ran());
2334	<	checkCompletedNormally(f, v1);
2331	>	// unspecified behavior - both source completions available
2332	>	try {
2333	>	assertEquals(inc(v1), h0.join());
2334	>	rs[0].assertValue(inc(v1));
2335	>	} catch (CompletionException ok) {
2336	>	checkCompletedWithWrappedException(h0, ex);
2337	>	rs[0].assertNotInvoked();
2338	>	}
2339	>	try {
2340	>	assertEquals(inc(v1), h1.join());
2341	>	rs[1].assertValue(inc(v1));
2342	>	} catch (CompletionException ok) {
2343	>	checkCompletedWithWrappedException(h1, ex);
2344	>	rs[1].assertNotInvoked();
2345	>	}
2346	>	try {
2347	>	assertEquals(inc(v1), h2.join());
2348	>	rs[2].assertValue(inc(v1));
2349	>	} catch (CompletionException ok) {
2350	>	checkCompletedWithWrappedException(h2, ex);
2351	>	rs[2].assertNotInvoked();
2352	>	}
2353	>	try {
2354	>	assertEquals(inc(v1), h3.join());
2355	>	rs[3].assertValue(inc(v1));
2356	>	} catch (CompletionException ok) {
2357	>	checkCompletedWithWrappedException(h3, ex);
2358	>	rs[3].assertNotInvoked();
2359		}
1247	–	}
2360
2361	<	public void testThenAcceptBoth_exceptionalCompletion3() {
2362	<	for (ExecutionMode m : ExecutionMode.values())
2363	<	for (Integer v1 : new Integer[] { 1, null }) {
2361	>	checkCompletedNormally(f, v1);
2362	>	checkCompletedExceptionally(g, ex);
2363	>	}}
2364
2365	+	/**
2366	+	* applyToEither result completes exceptionally if either source cancelled
2367	+	*/
2368	+	public void testApplyToEither_sourceCancelled() {
2369	+	for (ExecutionMode m : ExecutionMode.values())
2370	+	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2371	+	for (Integer v1 : new Integer[] { 1, null })
2372	+	{
2373		final CompletableFuture<Integer> f = new CompletableFuture<>();
2374		final CompletableFuture<Integer> g = new CompletableFuture<>();
2375	<	final SubtractAction r = new SubtractAction();
2376	<	final CFException ex = new CFException();
2375	>	final IncFunction[] rs = new IncFunction[6];
2376	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2377
2378	<	g.completeExceptionally(ex);
2379	<	f.complete(v1);
2380	<	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
2378	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2379	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2380	>	checkIncomplete(h0);
2381	>	checkIncomplete(h1);
2382	>	rs[0].assertNotInvoked();
2383	>	rs[1].assertNotInvoked();
2384	>	f.cancel(mayInterruptIfRunning);
2385	>	checkCompletedWithWrappedCancellationException(h0);
2386	>	checkCompletedWithWrappedCancellationException(h1);
2387	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2388	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2389	>	checkCompletedWithWrappedCancellationException(h2);
2390	>	checkCompletedWithWrappedCancellationException(h3);
2391	>	g.complete(v1);
2392
2393	<	checkCompletedWithWrappedCFException(h, ex);
2394	<	checkCompletedWithWrappedCFException(g, ex);
2395	<	assertFalse(r.ran());
2396	<	checkCompletedNormally(f, v1);
2393	>	// unspecified behavior - both source completions available
2394	>	final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2395	>	final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2396	>	try {
2397	>	assertEquals(inc(v1), h4.join());
2398	>	rs[4].assertValue(inc(v1));
2399	>	} catch (CompletionException ok) {
2400	>	checkCompletedWithWrappedCancellationException(h4);
2401	>	rs[4].assertNotInvoked();
2402	>	}
2403	>	try {
2404	>	assertEquals(inc(v1), h5.join());
2405	>	rs[5].assertValue(inc(v1));
2406	>	} catch (CompletionException ok) {
2407	>	checkCompletedWithWrappedCancellationException(h5);
2408	>	rs[5].assertNotInvoked();
2409		}
1267	–	}
2410
2411	<	public void testThenAcceptBoth_exceptionalCompletion4() {
2412	<	for (ExecutionMode m : ExecutionMode.values())
2413	<	for (Integer v1 : new Integer[] { 1, null }) {
2411	>	checkCancelled(f);
2412	>	checkCompletedNormally(g, v1);
2413	>	checkCompletedWithWrappedCancellationException(h0);
2414	>	checkCompletedWithWrappedCancellationException(h1);
2415	>	checkCompletedWithWrappedCancellationException(h2);
2416	>	checkCompletedWithWrappedCancellationException(h3);
2417	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2418	>	}}
2419
2420	+	public void testApplyToEither_sourceCancelled2() {
2421	+	for (ExecutionMode m : ExecutionMode.values())
2422	+	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2423	+	for (boolean fFirst : new boolean[] { true, false })
2424	+	for (Integer v1 : new Integer[] { 1, null })
2425	+	{
2426		final CompletableFuture<Integer> f = new CompletableFuture<>();
2427		final CompletableFuture<Integer> g = new CompletableFuture<>();
2428	<	final SubtractAction r = new SubtractAction();
2429	<	final CFException ex = new CFException();
2428	>	final IncFunction[] rs = new IncFunction[6];
2429	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2430
2431	<	f.completeExceptionally(ex);
2432	<	g.complete(v1);
2433	<	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
2431	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2432	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2433	>	assertTrue(fFirst ? f.complete(v1) : g.cancel(mayInterruptIfRunning));
2434	>	assertTrue(!fFirst ? f.complete(v1) : g.cancel(mayInterruptIfRunning));
2435	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2436	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2437
2438	<	checkCompletedWithWrappedCFException(h, ex);
2439	<	checkCompletedWithWrappedCFException(f, ex);
2440	<	assertFalse(r.ran());
2441	<	checkCompletedNormally(g, v1);
2438	>	// unspecified behavior - both source completions available
2439	>	try {
2440	>	assertEquals(inc(v1), h0.join());
2441	>	rs[0].assertValue(inc(v1));
2442	>	} catch (CompletionException ok) {
2443	>	checkCompletedWithWrappedCancellationException(h0);
2444	>	rs[0].assertNotInvoked();
2445		}
2446	<	}
2446	>	try {
2447	>	assertEquals(inc(v1), h1.join());
2448	>	rs[1].assertValue(inc(v1));
2449	>	} catch (CompletionException ok) {
2450	>	checkCompletedWithWrappedCancellationException(h1);
2451	>	rs[1].assertNotInvoked();
2452	>	}
2453	>	try {
2454	>	assertEquals(inc(v1), h2.join());
2455	>	rs[2].assertValue(inc(v1));
2456	>	} catch (CompletionException ok) {
2457	>	checkCompletedWithWrappedCancellationException(h2);
2458	>	rs[2].assertNotInvoked();
2459	>	}
2460	>	try {
2461	>	assertEquals(inc(v1), h3.join());
2462	>	rs[3].assertValue(inc(v1));
2463	>	} catch (CompletionException ok) {
2464	>	checkCompletedWithWrappedCancellationException(h3);
2465	>	rs[3].assertNotInvoked();
2466	>	}
2467	>
2468	>	checkCompletedNormally(f, v1);
2469	>	checkCancelled(g);
2470	>	}}
2471
2472		/**
2473	<	* thenAcceptBoth result completes exceptionally if action does
2473	>	* applyToEither result completes exceptionally if action does
2474		*/
2475	<	public void testThenAcceptBoth_actionFailed1() {
2475	>	public void testApplyToEither_actionFailed() {
2476		for (ExecutionMode m : ExecutionMode.values())
2477		for (Integer v1 : new Integer[] { 1, null })
2478	<	for (Integer v2 : new Integer[] { 2, null }) {
2479	<
2478	>	for (Integer v2 : new Integer[] { 2, null })
2479	>	{
2480		final CompletableFuture<Integer> f = new CompletableFuture<>();
2481		final CompletableFuture<Integer> g = new CompletableFuture<>();
2482	<	final FailingBiConsumer r = new FailingBiConsumer();
2483	<	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
2482	>	final FailingFunction[] rs = new FailingFunction[6];
2483	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingFunction(m);
2484
2485	+	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2486	+	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2487		f.complete(v1);
2488	<	checkIncomplete(h);
2488	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2489	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2490	>	checkCompletedWithWrappedException(h0, rs[0].ex);
2491	>	checkCompletedWithWrappedException(h1, rs[1].ex);
2492	>	checkCompletedWithWrappedException(h2, rs[2].ex);
2493	>	checkCompletedWithWrappedException(h3, rs[3].ex);
2494	>	for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2495	>
2496		g.complete(v2);
2497
2498	<	checkCompletedWithWrappedCFException(h);
2498	>	// unspecified behavior - both source completions available
2499	>	final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2500	>	final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2501	>
2502	>	checkCompletedWithWrappedException(h4, rs[4].ex);
2503	>	assertTrue(Objects.equals(v1, rs[4].value) ||
2504	>	Objects.equals(v2, rs[4].value));
2505	>	checkCompletedWithWrappedException(h5, rs[5].ex);
2506	>	assertTrue(Objects.equals(v1, rs[5].value) ||
2507	>	Objects.equals(v2, rs[5].value));
2508	>
2509		checkCompletedNormally(f, v1);
2510		checkCompletedNormally(g, v2);
2511	<	}
1310	<	}
2511	>	}}
2512
2513	<	public void testThenAcceptBoth_actionFailed2() {
2513	>	/**
2514	>	* acceptEither result completes normally after normal completion
2515	>	* of either source
2516	>	*/
2517	>	public void testAcceptEither_normalCompletion() {
2518		for (ExecutionMode m : ExecutionMode.values())
2519		for (Integer v1 : new Integer[] { 1, null })
2520	<	for (Integer v2 : new Integer[] { 2, null }) {
2521	<
2520	>	for (Integer v2 : new Integer[] { 2, null })
2521	>	{
2522		final CompletableFuture<Integer> f = new CompletableFuture<>();
2523		final CompletableFuture<Integer> g = new CompletableFuture<>();
2524	<	final FailingBiConsumer r = new FailingBiConsumer();
2525	<	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
2524	>	final NoopConsumer[] rs = new NoopConsumer[6];
2525	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2526
2527	<	g.complete(v2);
2528	<	checkIncomplete(h);
2527	>	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2528	>	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2529	>	checkIncomplete(h0);
2530	>	checkIncomplete(h1);
2531	>	rs[0].assertNotInvoked();
2532	>	rs[1].assertNotInvoked();
2533		f.complete(v1);
2534	+	checkCompletedNormally(h0, null);
2535	+	checkCompletedNormally(h1, null);
2536	+	rs[0].assertValue(v1);
2537	+	rs[1].assertValue(v1);
2538	+	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2539	+	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2540	+	checkCompletedNormally(h2, null);
2541	+	checkCompletedNormally(h3, null);
2542	+	rs[2].assertValue(v1);
2543	+	rs[3].assertValue(v1);
2544	+	g.complete(v2);
2545	+
2546	+	// unspecified behavior - both source completions available
2547	+	final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2548	+	final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2549	+	checkCompletedNormally(h4, null);
2550	+	checkCompletedNormally(h5, null);
2551	+	assertTrue(Objects.equals(v1, rs[4].value) ||
2552	+	Objects.equals(v2, rs[4].value));
2553	+	assertTrue(Objects.equals(v1, rs[5].value) ||
2554	+	Objects.equals(v2, rs[5].value));
2555
1326	–	checkCompletedWithWrappedCFException(h);
2556		checkCompletedNormally(f, v1);
2557		checkCompletedNormally(g, v2);
2558	<	}
2559	<	}
2558	>	checkCompletedNormally(h0, null);
2559	>	checkCompletedNormally(h1, null);
2560	>	checkCompletedNormally(h2, null);
2561	>	checkCompletedNormally(h3, null);
2562	>	for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2563	>	}}
2564
2565		/**
2566	<	* thenAcceptBoth result completes exceptionally if either source cancelled
2566	>	* acceptEither result completes exceptionally after exceptional
2567	>	* completion of either source
2568		*/
2569	<	public void testThenAcceptBoth_sourceCancelled1() {
2569	>	public void testAcceptEither_exceptionalCompletion() {
2570		for (ExecutionMode m : ExecutionMode.values())
2571	<	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2572	<	for (Integer v1 : new Integer[] { 1, null }) {
1339	<
2571	>	for (Integer v1 : new Integer[] { 1, null })
2572	>	{
2573		final CompletableFuture<Integer> f = new CompletableFuture<>();
2574		final CompletableFuture<Integer> g = new CompletableFuture<>();
2575	<	final SubtractAction r = new SubtractAction();
2576	<	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
2575	>	final CFException ex = new CFException();
2576	>	final NoopConsumer[] rs = new NoopConsumer[6];
2577	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2578	>
2579	>	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2580	>	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2581	>	checkIncomplete(h0);
2582	>	checkIncomplete(h1);
2583	>	rs[0].assertNotInvoked();
2584	>	rs[1].assertNotInvoked();
2585	>	f.completeExceptionally(ex);
2586	>	checkCompletedWithWrappedException(h0, ex);
2587	>	checkCompletedWithWrappedException(h1, ex);
2588	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2589	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2590	>	checkCompletedWithWrappedException(h2, ex);
2591	>	checkCompletedWithWrappedException(h3, ex);
2592
1345	–	assertTrue(f.cancel(mayInterruptIfRunning));
1346	–	checkIncomplete(h);
2593		g.complete(v1);
2594
2595	<	checkCompletedWithWrappedCancellationException(h);
2596	<	checkCancelled(f);
2597	<	assertFalse(r.ran());
2598	<	checkCompletedNormally(g, v1);
2595	>	// unspecified behavior - both source completions available
2596	>	final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2597	>	final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2598	>	try {
2599	>	assertNull(h4.join());
2600	>	rs[4].assertValue(v1);
2601	>	} catch (CompletionException ok) {
2602	>	checkCompletedWithWrappedException(h4, ex);
2603	>	rs[4].assertNotInvoked();
2604	>	}
2605	>	try {
2606	>	assertNull(h5.join());
2607	>	rs[5].assertValue(v1);
2608	>	} catch (CompletionException ok) {
2609	>	checkCompletedWithWrappedException(h5, ex);
2610	>	rs[5].assertNotInvoked();
2611		}
1354	–	}
2612
2613	<	public void testThenAcceptBoth_sourceCancelled2() {
2614	<	for (ExecutionMode m : ExecutionMode.values())
2615	<	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2616	<	for (Integer v1 : new Integer[] { 1, null }) {
2613	>	checkCompletedExceptionally(f, ex);
2614	>	checkCompletedNormally(g, v1);
2615	>	checkCompletedWithWrappedException(h0, ex);
2616	>	checkCompletedWithWrappedException(h1, ex);
2617	>	checkCompletedWithWrappedException(h2, ex);
2618	>	checkCompletedWithWrappedException(h3, ex);
2619	>	checkCompletedWithWrappedException(h4, ex);
2620	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2621	>	}}
2622
2623	+	public void testAcceptEither_exceptionalCompletion2() {
2624	+	for (ExecutionMode m : ExecutionMode.values())
2625	+	for (boolean fFirst : new boolean[] { true, false })
2626	+	for (Integer v1 : new Integer[] { 1, null })
2627	+	{
2628		final CompletableFuture<Integer> f = new CompletableFuture<>();
2629		final CompletableFuture<Integer> g = new CompletableFuture<>();
2630	<	final SubtractAction r = new SubtractAction();
2631	<	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
2630	>	final CFException ex = new CFException();
2631	>	final NoopConsumer[] rs = new NoopConsumer[6];
2632	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2633
2634	<	assertTrue(g.cancel(mayInterruptIfRunning));
2635	<	checkIncomplete(h);
2636	<	f.complete(v1);
2634	>	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2635	>	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2636	>	assertTrue(fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2637	>	assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2638	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2639	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2640
2641	<	checkCompletedWithWrappedCancellationException(h);
2642	<	checkCancelled(g);
2643	<	assertFalse(r.ran());
2644	<	checkCompletedNormally(f, v1);
2641	>	// unspecified behavior - both source completions available
2642	>	try {
2643	>	assertNull(h0.join());
2644	>	rs[0].assertValue(v1);
2645	>	} catch (CompletionException ok) {
2646	>	checkCompletedWithWrappedException(h0, ex);
2647	>	rs[0].assertNotInvoked();
2648	>	}
2649	>	try {
2650	>	assertNull(h1.join());
2651	>	rs[1].assertValue(v1);
2652	>	} catch (CompletionException ok) {
2653	>	checkCompletedWithWrappedException(h1, ex);
2654	>	rs[1].assertNotInvoked();
2655	>	}
2656	>	try {
2657	>	assertNull(h2.join());
2658	>	rs[2].assertValue(v1);
2659	>	} catch (CompletionException ok) {
2660	>	checkCompletedWithWrappedException(h2, ex);
2661	>	rs[2].assertNotInvoked();
2662	>	}
2663	>	try {
2664	>	assertNull(h3.join());
2665	>	rs[3].assertValue(v1);
2666	>	} catch (CompletionException ok) {
2667	>	checkCompletedWithWrappedException(h3, ex);
2668	>	rs[3].assertNotInvoked();
2669		}
1375	–	}
1376	–
1377	–	public void testThenAcceptBoth_sourceCancelled3() {
1378	–	for (ExecutionMode m : ExecutionMode.values())
1379	–	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1380	–	for (Integer v1 : new Integer[] { 1, null }) {
1381	–
1382	–	final CompletableFuture<Integer> f = new CompletableFuture<>();
1383	–	final CompletableFuture<Integer> g = new CompletableFuture<>();
1384	–	final SubtractAction r = new SubtractAction();
1385	–
1386	–	assertTrue(g.cancel(mayInterruptIfRunning));
1387	–	f.complete(v1);
1388	–	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
2670
1390	–	checkCompletedWithWrappedCancellationException(h);
1391	–	checkCancelled(g);
1392	–	assertFalse(r.ran());
2671		checkCompletedNormally(f, v1);
2672	<	}
2673	<	}
2672	>	checkCompletedExceptionally(g, ex);
2673	>	}}
2674
2675	<	public void testThenAcceptBoth_sourceCancelled4() {
2675	>	/**
2676	>	* acceptEither result completes exceptionally if either source cancelled
2677	>	*/
2678	>	public void testAcceptEither_sourceCancelled() {
2679		for (ExecutionMode m : ExecutionMode.values())
2680		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2681	<	for (Integer v1 : new Integer[] { 1, null }) {
2682	<
2681	>	for (Integer v1 : new Integer[] { 1, null })
2682	>	{
2683		final CompletableFuture<Integer> f = new CompletableFuture<>();
2684		final CompletableFuture<Integer> g = new CompletableFuture<>();
2685	<	final SubtractAction r = new SubtractAction();
2685	>	final NoopConsumer[] rs = new NoopConsumer[6];
2686	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2687	>
2688	>	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2689	>	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2690	>	checkIncomplete(h0);
2691	>	checkIncomplete(h1);
2692	>	rs[0].assertNotInvoked();
2693	>	rs[1].assertNotInvoked();
2694	>	f.cancel(mayInterruptIfRunning);
2695	>	checkCompletedWithWrappedCancellationException(h0);
2696	>	checkCompletedWithWrappedCancellationException(h1);
2697	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2698	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2699	>	checkCompletedWithWrappedCancellationException(h2);
2700	>	checkCompletedWithWrappedCancellationException(h3);
2701
1406	–	assertTrue(f.cancel(mayInterruptIfRunning));
2702		g.complete(v1);
1408	–	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
2703
2704	<	checkCompletedWithWrappedCancellationException(h);
2704	>	// unspecified behavior - both source completions available
2705	>	final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2706	>	final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2707	>	try {
2708	>	assertNull(h4.join());
2709	>	rs[4].assertValue(v1);
2710	>	} catch (CompletionException ok) {
2711	>	checkCompletedWithWrappedCancellationException(h4);
2712	>	rs[4].assertNotInvoked();
2713	>	}
2714	>	try {
2715	>	assertNull(h5.join());
2716	>	rs[5].assertValue(v1);
2717	>	} catch (CompletionException ok) {
2718	>	checkCompletedWithWrappedCancellationException(h5);
2719	>	rs[5].assertNotInvoked();
2720	>	}
2721	>
2722		checkCancelled(f);
1412	–	assertFalse(r.ran());
2723		checkCompletedNormally(g, v1);
2724	<	}
2725	<	}
2724	>	checkCompletedWithWrappedCancellationException(h0);
2725	>	checkCompletedWithWrappedCancellationException(h1);
2726	>	checkCompletedWithWrappedCancellationException(h2);
2727	>	checkCompletedWithWrappedCancellationException(h3);
2728	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2729	>	}}
2730
2731		/**
2732	<	* runAfterBoth result completes normally after normal
1419	<	* completion of sources
2732	>	* acceptEither result completes exceptionally if action does
2733		*/
2734	<	public void testRunAfterBoth_normalCompletion1() {
2734	>	public void testAcceptEither_actionFailed() {
2735		for (ExecutionMode m : ExecutionMode.values())
2736		for (Integer v1 : new Integer[] { 1, null })
2737	<	for (Integer v2 : new Integer[] { 2, null }) {
2738	<
2737	>	for (Integer v2 : new Integer[] { 2, null })
2738	>	{
2739		final CompletableFuture<Integer> f = new CompletableFuture<>();
2740		final CompletableFuture<Integer> g = new CompletableFuture<>();
2741	<	final Noop r = new Noop();
2742	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
2741	>	final FailingConsumer[] rs = new FailingConsumer[6];
2742	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingConsumer(m);
2743
2744	+	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2745	+	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2746		f.complete(v1);
2747	<	checkIncomplete(h);
2748	<	assertFalse(r.ran);
2749	<	g.complete(v2);
2750	<
2751	<	checkCompletedNormally(h, null);
2752	<	assertTrue(r.ran);
2753	<	checkCompletedNormally(f, v1);
1439	<	checkCompletedNormally(g, v2);
1440	<	}
1441	<	}
1442	<
1443	<	public void testRunAfterBoth_normalCompletion2() {
1444	<	for (ExecutionMode m : ExecutionMode.values())
1445	<	for (Integer v1 : new Integer[] { 1, null })
1446	<	for (Integer v2 : new Integer[] { 2, null }) {
1447	<
1448	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
1449	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
1450	<	final Noop r = new Noop();
1451	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
2747	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2748	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2749	>	checkCompletedWithWrappedException(h0, rs[0].ex);
2750	>	checkCompletedWithWrappedException(h1, rs[1].ex);
2751	>	checkCompletedWithWrappedException(h2, rs[2].ex);
2752	>	checkCompletedWithWrappedException(h3, rs[3].ex);
2753	>	for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2754
2755		g.complete(v2);
1454	–	checkIncomplete(h);
1455	–	assertFalse(r.ran);
1456	–	f.complete(v1);
1457	–
1458	–	checkCompletedNormally(h, null);
1459	–	assertTrue(r.ran);
1460	–	checkCompletedNormally(f, v1);
1461	–	checkCompletedNormally(g, v2);
1462	–	}
1463	–	}
2756
2757	<	public void testRunAfterBoth_normalCompletion3() {
2758	<	for (ExecutionMode m : ExecutionMode.values())
2759	<	for (Integer v1 : new Integer[] { 1, null })
2760	<	for (Integer v2 : new Integer[] { 2, null }) {
2757	>	// unspecified behavior - both source completions available
2758	>	final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2759	>	final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2760	>
2761	>	checkCompletedWithWrappedException(h4, rs[4].ex);
2762	>	assertTrue(Objects.equals(v1, rs[4].value) ||
2763	>	Objects.equals(v2, rs[4].value));
2764	>	checkCompletedWithWrappedException(h5, rs[5].ex);
2765	>	assertTrue(Objects.equals(v1, rs[5].value) ||
2766	>	Objects.equals(v2, rs[5].value));
2767
1470	–	final CompletableFuture<Integer> f = new CompletableFuture<>();
1471	–	final CompletableFuture<Integer> g = new CompletableFuture<>();
1472	–	final Noop r = new Noop();
1473	–
1474	–	g.complete(v2);
1475	–	f.complete(v1);
1476	–	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1477	–
1478	–	checkCompletedNormally(h, null);
1479	–	assertTrue(r.ran);
2768		checkCompletedNormally(f, v1);
2769		checkCompletedNormally(g, v2);
2770	<	}
1483	<	}
2770	>	}}
2771
2772	<	public void testRunAfterBoth_normalCompletion4() {
2772	>	/**
2773	>	* runAfterEither result completes normally after normal completion
2774	>	* of either source
2775	>	*/
2776	>	public void testRunAfterEither_normalCompletion() {
2777		for (ExecutionMode m : ExecutionMode.values())
2778		for (Integer v1 : new Integer[] { 1, null })
2779	<	for (Integer v2 : new Integer[] { 2, null }) {
2780	<
2781	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
2782	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
2783	<	final Noop r = new Noop();
2784	<
2779	>	for (Integer v2 : new Integer[] { 2, null })
2780	>	for (boolean pushNop : new boolean[] { true, false })
2781	>	{
2782	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2783	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2784	>	final Noop[] rs = new Noop[6];
2785	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2786	>
2787	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2788	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2789	>	checkIncomplete(h0);
2790	>	checkIncomplete(h1);
2791	>	rs[0].assertNotInvoked();
2792	>	rs[1].assertNotInvoked();
2793	>	if (pushNop) {          // ad hoc test of intra-completion interference
2794	>	m.thenRun(f, () -> {});
2795	>	m.thenRun(g, () -> {});
2796	>	}
2797		f.complete(v1);
2798	+	checkCompletedNormally(h0, null);
2799	+	checkCompletedNormally(h1, null);
2800	+	rs[0].assertInvoked();
2801	+	rs[1].assertInvoked();
2802	+	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2803	+	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2804	+	checkCompletedNormally(h2, null);
2805	+	checkCompletedNormally(h3, null);
2806	+	rs[2].assertInvoked();
2807	+	rs[3].assertInvoked();
2808	+
2809		g.complete(v2);
1496	–	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
2810
2811	<	checkCompletedNormally(h, null);
2812	<	assertTrue(r.ran);
2811	>	final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2812	>	final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2813	>
2814		checkCompletedNormally(f, v1);
2815		checkCompletedNormally(g, v2);
2816	<	}
2817	<	}
2816	>	checkCompletedNormally(h0, null);
2817	>	checkCompletedNormally(h1, null);
2818	>	checkCompletedNormally(h2, null);
2819	>	checkCompletedNormally(h3, null);
2820	>	checkCompletedNormally(h4, null);
2821	>	checkCompletedNormally(h5, null);
2822	>	for (int i = 0; i < 6; i++) rs[i].assertInvoked();
2823	>	}}
2824
2825		/**
2826	<	* runAfterBoth result completes exceptionally after exceptional
2826	>	* runAfterEither result completes exceptionally after exceptional
2827		* completion of either source
2828		*/
2829	<	public void testRunAfterBoth_exceptionalCompletion1() {
2829	>	public void testRunAfterEither_exceptionalCompletion() {
2830		for (ExecutionMode m : ExecutionMode.values())
2831	<	for (Integer v1 : new Integer[] { 1, null }) {
2832	<
2831	>	for (Integer v1 : new Integer[] { 1, null })
2832	>	{
2833		final CompletableFuture<Integer> f = new CompletableFuture<>();
2834		final CompletableFuture<Integer> g = new CompletableFuture<>();
1515	–	final Noop r = new Noop();
1516	–	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
2835		final CFException ex = new CFException();
2836	+	final Noop[] rs = new Noop[6];
2837	+	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2838
2839	<	f.completeExceptionally(ex);
2840	<	checkIncomplete(h);
2841	<	g.complete(v1);
2839	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2840	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2841	>	checkIncomplete(h0);
2842	>	checkIncomplete(h1);
2843	>	rs[0].assertNotInvoked();
2844	>	rs[1].assertNotInvoked();
2845	>	assertTrue(f.completeExceptionally(ex));
2846	>	checkCompletedWithWrappedException(h0, ex);
2847	>	checkCompletedWithWrappedException(h1, ex);
2848	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2849	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2850	>	checkCompletedWithWrappedException(h2, ex);
2851	>	checkCompletedWithWrappedException(h3, ex);
2852	>
2853	>	assertTrue(g.complete(v1));
2854	>
2855	>	// unspecified behavior - both source completions available
2856	>	final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2857	>	final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2858	>	try {
2859	>	assertNull(h4.join());
2860	>	rs[4].assertInvoked();
2861	>	} catch (CompletionException ok) {
2862	>	checkCompletedWithWrappedException(h4, ex);
2863	>	rs[4].assertNotInvoked();
2864	>	}
2865	>	try {
2866	>	assertNull(h5.join());
2867	>	rs[5].assertInvoked();
2868	>	} catch (CompletionException ok) {
2869	>	checkCompletedWithWrappedException(h5, ex);
2870	>	rs[5].assertNotInvoked();
2871	>	}
2872
2873	<	checkCompletedWithWrappedCFException(h, ex);
1524	<	checkCompletedWithWrappedCFException(f, ex);
1525	<	assertFalse(r.ran);
2873	>	checkCompletedExceptionally(f, ex);
2874		checkCompletedNormally(g, v1);
2875	<	}
2876	<	}
2875	>	checkCompletedWithWrappedException(h0, ex);
2876	>	checkCompletedWithWrappedException(h1, ex);
2877	>	checkCompletedWithWrappedException(h2, ex);
2878	>	checkCompletedWithWrappedException(h3, ex);
2879	>	checkCompletedWithWrappedException(h4, ex);
2880	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2881	>	}}
2882
2883	<	public void testRunAfterBoth_exceptionalCompletion2() {
2883	>	public void testRunAfterEither_exceptionalCompletion2() {
2884		for (ExecutionMode m : ExecutionMode.values())
2885	<	for (Integer v1 : new Integer[] { 1, null }) {
2886	<
2885	>	for (boolean fFirst : new boolean[] { true, false })
2886	>	for (Integer v1 : new Integer[] { 1, null })
2887	>	{
2888		final CompletableFuture<Integer> f = new CompletableFuture<>();
2889		final CompletableFuture<Integer> g = new CompletableFuture<>();
1536	–	final Noop r = new Noop();
1537	–	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
2890		final CFException ex = new CFException();
2891	+	final Noop[] rs = new Noop[6];
2892	+	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2893
2894	<	g.completeExceptionally(ex);
2895	<	checkIncomplete(h);
2896	<	f.complete(v1);
2894	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2895	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2896	>	assertTrue( fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2897	>	assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2898	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2899	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2900
2901	<	checkCompletedWithWrappedCFException(h, ex);
2902	<	checkCompletedWithWrappedCFException(g, ex);
2903	<	assertFalse(r.ran);
2904	<	checkCompletedNormally(f, v1);
2901	>	// unspecified behavior - both source completions available
2902	>	try {
2903	>	assertNull(h0.join());
2904	>	rs[0].assertInvoked();
2905	>	} catch (CompletionException ok) {
2906	>	checkCompletedWithWrappedException(h0, ex);
2907	>	rs[0].assertNotInvoked();
2908	>	}
2909	>	try {
2910	>	assertNull(h1.join());
2911	>	rs[1].assertInvoked();
2912	>	} catch (CompletionException ok) {
2913	>	checkCompletedWithWrappedException(h1, ex);
2914	>	rs[1].assertNotInvoked();
2915	>	}
2916	>	try {
2917	>	assertNull(h2.join());
2918	>	rs[2].assertInvoked();
2919	>	} catch (CompletionException ok) {
2920	>	checkCompletedWithWrappedException(h2, ex);
2921	>	rs[2].assertNotInvoked();
2922	>	}
2923	>	try {
2924	>	assertNull(h3.join());
2925	>	rs[3].assertInvoked();
2926	>	} catch (CompletionException ok) {
2927	>	checkCompletedWithWrappedException(h3, ex);
2928	>	rs[3].assertNotInvoked();
2929		}
1549	–	}
1550	–
1551	–	public void testRunAfterBoth_exceptionalCompletion3() {
1552	–	for (ExecutionMode m : ExecutionMode.values())
1553	–	for (Integer v1 : new Integer[] { 1, null }) {
1554	–
1555	–	final CompletableFuture<Integer> f = new CompletableFuture<>();
1556	–	final CompletableFuture<Integer> g = new CompletableFuture<>();
1557	–	final Noop r = new Noop();
1558	–	final CFException ex = new CFException();
1559	–
1560	–	g.completeExceptionally(ex);
1561	–	f.complete(v1);
1562	–	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
2930
1564	–	checkCompletedWithWrappedCFException(h, ex);
1565	–	checkCompletedWithWrappedCFException(g, ex);
1566	–	assertFalse(r.ran);
2931		checkCompletedNormally(f, v1);
2932	<	}
2933	<	}
2932	>	checkCompletedExceptionally(g, ex);
2933	>	}}
2934
2935	<	public void testRunAfterBoth_exceptionalCompletion4() {
2935	>	/**
2936	>	* runAfterEither result completes exceptionally if either source cancelled
2937	>	*/
2938	>	public void testRunAfterEither_sourceCancelled() {
2939		for (ExecutionMode m : ExecutionMode.values())
2940	<	for (Integer v1 : new Integer[] { 1, null }) {
2941	<
2940	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2941	>	for (Integer v1 : new Integer[] { 1, null })
2942	>	{
2943		final CompletableFuture<Integer> f = new CompletableFuture<>();
2944		final CompletableFuture<Integer> g = new CompletableFuture<>();
2945	<	final Noop r = new Noop();
2946	<	final CFException ex = new CFException();
2945	>	final Noop[] rs = new Noop[6];
2946	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2947
2948	<	f.completeExceptionally(ex);
2949	<	g.complete(v1);
2950	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
2948	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2949	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2950	>	checkIncomplete(h0);
2951	>	checkIncomplete(h1);
2952	>	rs[0].assertNotInvoked();
2953	>	rs[1].assertNotInvoked();
2954	>	f.cancel(mayInterruptIfRunning);
2955	>	checkCompletedWithWrappedCancellationException(h0);
2956	>	checkCompletedWithWrappedCancellationException(h1);
2957	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2958	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2959	>	checkCompletedWithWrappedCancellationException(h2);
2960	>	checkCompletedWithWrappedCancellationException(h3);
2961	>
2962	>	assertTrue(g.complete(v1));
2963	>
2964	>	// unspecified behavior - both source completions available
2965	>	final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2966	>	final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2967	>	try {
2968	>	assertNull(h4.join());
2969	>	rs[4].assertInvoked();
2970	>	} catch (CompletionException ok) {
2971	>	checkCompletedWithWrappedCancellationException(h4);
2972	>	rs[4].assertNotInvoked();
2973	>	}
2974	>	try {
2975	>	assertNull(h5.join());
2976	>	rs[5].assertInvoked();
2977	>	} catch (CompletionException ok) {
2978	>	checkCompletedWithWrappedCancellationException(h5);
2979	>	rs[5].assertNotInvoked();
2980	>	}
2981
2982	<	checkCompletedWithWrappedCFException(h, ex);
1585	<	checkCompletedWithWrappedCFException(f, ex);
1586	<	assertFalse(r.ran);
2982	>	checkCancelled(f);
2983		checkCompletedNormally(g, v1);
2984	<	}
2985	<	}
2984	>	checkCompletedWithWrappedCancellationException(h0);
2985	>	checkCompletedWithWrappedCancellationException(h1);
2986	>	checkCompletedWithWrappedCancellationException(h2);
2987	>	checkCompletedWithWrappedCancellationException(h3);
2988	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2989	>	}}
2990
2991		/**
2992	<	* runAfterBoth result completes exceptionally if action does
2992	>	* runAfterEither result completes exceptionally if action does
2993		*/
2994	<	public void testRunAfterBoth_actionFailed1() {
2994	>	public void testRunAfterEither_actionFailed() {
2995		for (ExecutionMode m : ExecutionMode.values())
2996		for (Integer v1 : new Integer[] { 1, null })
2997	<	for (Integer v2 : new Integer[] { 2, null }) {
2998	<
2997	>	for (Integer v2 : new Integer[] { 2, null })
2998	>	{
2999		final CompletableFuture<Integer> f = new CompletableFuture<>();
3000		final CompletableFuture<Integer> g = new CompletableFuture<>();
3001	<	final FailingNoop r = new FailingNoop();
3002	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
3001	>	final FailingRunnable[] rs = new FailingRunnable[6];
3002	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingRunnable(m);
3003
3004	<	f.complete(v1);
3005	<	checkIncomplete(h);
3006	<	g.complete(v2);
3004	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
3005	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
3006	>	assertTrue(f.complete(v1));
3007	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
3008	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
3009	>	checkCompletedWithWrappedException(h0, rs[0].ex);
3010	>	checkCompletedWithWrappedException(h1, rs[1].ex);
3011	>	checkCompletedWithWrappedException(h2, rs[2].ex);
3012	>	checkCompletedWithWrappedException(h3, rs[3].ex);
3013	>	for (int i = 0; i < 4; i++) rs[i].assertInvoked();
3014	>	assertTrue(g.complete(v2));
3015	>	final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
3016	>	final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
3017	>	checkCompletedWithWrappedException(h4, rs[4].ex);
3018	>	checkCompletedWithWrappedException(h5, rs[5].ex);
3019
1608	–	checkCompletedWithWrappedCFException(h);
3020		checkCompletedNormally(f, v1);
3021		checkCompletedNormally(g, v2);
3022	<	}
3023	<	}
3022	>	for (int i = 0; i < 6; i++) rs[i].assertInvoked();
3023	>	}}
3024
3025	<	public void testRunAfterBoth_actionFailed2() {
3025	>	/**
3026	>	* thenCompose result completes normally after normal completion of source
3027	>	*/
3028	>	public void testThenCompose_normalCompletion() {
3029		for (ExecutionMode m : ExecutionMode.values())
3030	+	for (boolean createIncomplete : new boolean[] { true, false })
3031		for (Integer v1 : new Integer[] { 1, null })
3032	<	for (Integer v2 : new Integer[] { 2, null }) {
1618	<
3032	>	{
3033		final CompletableFuture<Integer> f = new CompletableFuture<>();
3034	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
3035	<	final FailingNoop r = new FailingNoop();
3036	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
3037	<
1624	<	g.complete(v2);
1625	<	checkIncomplete(h);
1626	<	f.complete(v1);
3034	>	final CompletableFutureInc r = new CompletableFutureInc(m);
3035	>	if (!createIncomplete) assertTrue(f.complete(v1));
3036	>	final CompletableFuture<Integer> g = m.thenCompose(f, r);
3037	>	if (createIncomplete) assertTrue(f.complete(v1));
3038
3039	<	checkCompletedWithWrappedCFException(h);
3039	>	checkCompletedNormally(g, inc(v1));
3040		checkCompletedNormally(f, v1);
3041	<	checkCompletedNormally(g, v2);
3042	<	}
1632	<	}
3041	>	r.assertValue(v1);
3042	>	}}
3043
3044		/**
3045	<	* runAfterBoth result completes exceptionally if either source cancelled
3045	>	* thenCompose result completes exceptionally after exceptional
3046	>	* completion of source
3047		*/
3048	<	public void testRunAfterBoth_sourceCancelled1() {
3048	>	public void testThenCompose_exceptionalCompletion() {
3049		for (ExecutionMode m : ExecutionMode.values())
3050	<	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3051	<	for (Integer v1 : new Integer[] { 1, null }) {
3052	<
3050	>	for (boolean createIncomplete : new boolean[] { true, false })
3051	>	{
3052	>	final CFException ex = new CFException();
3053	>	final CompletableFutureInc r = new CompletableFutureInc(m);
3054		final CompletableFuture<Integer> f = new CompletableFuture<>();
3055	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
3056	<	final Noop r = new Noop();
3057	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
3055	>	if (!createIncomplete) f.completeExceptionally(ex);
3056	>	final CompletableFuture<Integer> g = m.thenCompose(f, r);
3057	>	if (createIncomplete) f.completeExceptionally(ex);
3058	>
3059	>	checkCompletedWithWrappedException(g, ex);
3060	>	checkCompletedExceptionally(f, ex);
3061	>	r.assertNotInvoked();
3062	>	}}
3063
3064	<	assertTrue(f.cancel(mayInterruptIfRunning));
3065	<	checkIncomplete(h);
3066	<	g.complete(v1);
3067	<
1651	<	checkCompletedWithWrappedCancellationException(h);
1652	<	checkCancelled(f);
1653	<	assertFalse(r.ran);
1654	<	checkCompletedNormally(g, v1);
1655	<	}
1656	<	}
1657	<
1658	<	public void testRunAfterBoth_sourceCancelled2() {
3064	>	/**
3065	>	* thenCompose result completes exceptionally if action does
3066	>	*/
3067	>	public void testThenCompose_actionFailed() {
3068		for (ExecutionMode m : ExecutionMode.values())
3069	<	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3070	<	for (Integer v1 : new Integer[] { 1, null }) {
3071	<
3069	>	for (boolean createIncomplete : new boolean[] { true, false })
3070	>	for (Integer v1 : new Integer[] { 1, null })
3071	>	{
3072		final CompletableFuture<Integer> f = new CompletableFuture<>();
3073	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
3074	<	final Noop r = new Noop();
3075	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
3073	>	final FailingCompletableFutureFunction r
3074	>	= new FailingCompletableFutureFunction(m);
3075	>	if (!createIncomplete) assertTrue(f.complete(v1));
3076	>	final CompletableFuture<Integer> g = m.thenCompose(f, r);
3077	>	if (createIncomplete) assertTrue(f.complete(v1));
3078
3079	<	assertTrue(g.cancel(mayInterruptIfRunning));
1669	<	checkIncomplete(h);
1670	<	f.complete(v1);
1671	<
1672	<	checkCompletedWithWrappedCancellationException(h);
1673	<	checkCancelled(g);
1674	<	assertFalse(r.ran);
3079	>	checkCompletedWithWrappedException(g, r.ex);
3080		checkCompletedNormally(f, v1);
3081	<	}
1677	<	}
3081	>	}}
3082
3083	<	public void testRunAfterBoth_sourceCancelled3() {
3083	>	/**
3084	>	* thenCompose result completes exceptionally if source cancelled
3085	>	*/
3086	>	public void testThenCompose_sourceCancelled() {
3087		for (ExecutionMode m : ExecutionMode.values())
3088	+	for (boolean createIncomplete : new boolean[] { true, false })
3089		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3090	<	for (Integer v1 : new Integer[] { 1, null }) {
1683	<
3090	>	{
3091		final CompletableFuture<Integer> f = new CompletableFuture<>();
3092	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
3093	<	final Noop r = new Noop();
3094	<
3095	<	assertTrue(g.cancel(mayInterruptIfRunning));
3096	<	f.complete(v1);
3097	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1691	<
1692	<	checkCompletedWithWrappedCancellationException(h);
1693	<	checkCancelled(g);
1694	<	assertFalse(r.ran);
1695	<	checkCompletedNormally(f, v1);
3092	>	final CompletableFutureInc r = new CompletableFutureInc(m);
3093	>	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
3094	>	final CompletableFuture<Integer> g = m.thenCompose(f, r);
3095	>	if (createIncomplete) {
3096	>	checkIncomplete(g);
3097	>	assertTrue(f.cancel(mayInterruptIfRunning));
3098		}
1697	–	}
1698	–
1699	–	public void testRunAfterBoth_sourceCancelled4() {
1700	–	for (ExecutionMode m : ExecutionMode.values())
1701	–	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1702	–	for (Integer v1 : new Integer[] { 1, null }) {
3099
3100	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
1705	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
1706	<	final Noop r = new Noop();
1707	<
1708	<	assertTrue(f.cancel(mayInterruptIfRunning));
1709	<	g.complete(v1);
1710	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1711	<
1712	<	checkCompletedWithWrappedCancellationException(h);
3100	>	checkCompletedWithWrappedCancellationException(g);
3101		checkCancelled(f);
3102	<	assertFalse(r.ran);
1715	<	checkCompletedNormally(g, v1);
1716	<	}
1717	<	}
3102	>	}}
3103
3104		/**
3105	<	* applyToEither result completes normally after normal completion
1721	<	* of either source
3105	>	* thenCompose result completes exceptionally if the result of the action does
3106		*/
3107	<	public void testApplyToEither() {
3108	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3109	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3110	<	CompletableFuture<Integer> g = f.applyToEither(f2, inc);
3111	<	f.complete(one);
3112	<	checkCompletedNormally(g, two);
3113	<	f2.complete(one);
3114	<	checkCompletedNormally(g, two);
3107	>	public void testThenCompose_actionReturnsFailingFuture() {
3108	>	for (ExecutionMode m : ExecutionMode.values())
3109	>	for (int order = 0; order < 6; order++)
3110	>	for (Integer v1 : new Integer[] { 1, null })
3111	>	{
3112	>	final CFException ex = new CFException();
3113	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
3114	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
3115	>	final CompletableFuture<Integer> h;
3116	>	// Test all permutations of orders
3117	>	switch (order) {
3118	>	case 0:
3119	>	assertTrue(f.complete(v1));
3120	>	assertTrue(g.completeExceptionally(ex));
3121	>	h = m.thenCompose(f, x -> g);
3122	>	break;
3123	>	case 1:
3124	>	assertTrue(f.complete(v1));
3125	>	h = m.thenCompose(f, x -> g);
3126	>	assertTrue(g.completeExceptionally(ex));
3127	>	break;
3128	>	case 2:
3129	>	assertTrue(g.completeExceptionally(ex));
3130	>	assertTrue(f.complete(v1));
3131	>	h = m.thenCompose(f, x -> g);
3132	>	break;
3133	>	case 3:
3134	>	assertTrue(g.completeExceptionally(ex));
3135	>	h = m.thenCompose(f, x -> g);
3136	>	assertTrue(f.complete(v1));
3137	>	break;
3138	>	case 4:
3139	>	h = m.thenCompose(f, x -> g);
3140	>	assertTrue(f.complete(v1));
3141	>	assertTrue(g.completeExceptionally(ex));
3142	>	break;
3143	>	case 5:
3144	>	h = m.thenCompose(f, x -> g);
3145	>	assertTrue(f.complete(v1));
3146	>	assertTrue(g.completeExceptionally(ex));
3147	>	break;
3148	>	default: throw new AssertionError();
3149	>	}
3150
3151	<	f = new CompletableFuture<>();
3152	<	f.complete(one);
3153	<	f2 = new CompletableFuture<>();
3154	<	g = f.applyToEither(f2, inc);
1736	<	checkCompletedNormally(g, two);
1737	<	}
3151	>	checkCompletedExceptionally(g, ex);
3152	>	checkCompletedWithWrappedException(h, ex);
3153	>	checkCompletedNormally(f, v1);
3154	>	}}
3155
3156		/**
3157	<	* applyToEither result completes exceptionally after exceptional
3158	<	* completion of either source
3157	>	* exceptionallyCompose result completes normally after normal
3158	>	* completion of source
3159		*/
3160	<	public void testApplyToEither2() {
3161	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3162	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3163	<	CompletableFuture<Integer> g = f.applyToEither(f2, inc);
3164	<	f.completeExceptionally(new CFException());
3165	<	f2.complete(one);
3166	<	checkCompletedWithWrappedCFException(g);
3160	>	public void testExceptionallyCompose_normalCompletion() {
3161	>	for (ExecutionMode m : ExecutionMode.values())
3162	>	for (boolean createIncomplete : new boolean[] { true, false })
3163	>	for (Integer v1 : new Integer[] { 1, null })
3164	>	{
3165	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
3166	>	final ExceptionalCompletableFutureFunction r =
3167	>	new ExceptionalCompletableFutureFunction(m);
3168	>	if (!createIncomplete) assertTrue(f.complete(v1));
3169	>	final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r);
3170	>	if (createIncomplete) assertTrue(f.complete(v1));
3171
3172	<	f = new CompletableFuture<>();
3173	<	f2 = new CompletableFuture<>();
3174	<	f2.completeExceptionally(new CFException());
3175	<	g = f.applyToEither(f2, inc);
1755	<	checkCompletedWithWrappedCFException(g);
1756	<	}
3172	>	checkCompletedNormally(f, v1);
3173	>	checkCompletedNormally(g, v1);
3174	>	r.assertNotInvoked();
3175	>	}}
3176
3177		/**
3178	<	* applyToEither result completes exceptionally if action does
3178	>	* exceptionallyCompose result completes normally after exceptional
3179	>	* completion of source
3180		*/
3181	<	public void testApplyToEither3() {
3182	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3183	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3184	<	FailingFunction r = new FailingFunction();
3185	<	CompletableFuture<Integer> g = f.applyToEither(f2, r);
3186	<	f2.complete(two);
3187	<	checkCompletedWithWrappedCFException(g);
3188	<	}
3181	>	public void testExceptionallyCompose_exceptionalCompletion() {
3182	>	for (ExecutionMode m : ExecutionMode.values())
3183	>	for (boolean createIncomplete : new boolean[] { true, false })
3184	>	{
3185	>	final CFException ex = new CFException();
3186	>	final ExceptionalCompletableFutureFunction r =
3187	>	new ExceptionalCompletableFutureFunction(m);
3188	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
3189	>	if (!createIncomplete) f.completeExceptionally(ex);
3190	>	final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r);
3191	>	if (createIncomplete) f.completeExceptionally(ex);
3192
3193	<	/**
3194	<	* applyToEither result completes exceptionally if either source cancelled
3195	<	*/
3196	<	public void testApplyToEither4() {
1774	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1775	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1776	<	CompletableFuture<Integer> g = f.applyToEither(f2, inc);
1777	<	assertTrue(f.cancel(true));
1778	<	checkCompletedWithWrappedCancellationException(g);
1779	<	f = new CompletableFuture<>();
1780	<	f2 = new CompletableFuture<>();
1781	<	assertTrue(f2.cancel(true));
1782	<	checkCompletedWithWrappedCancellationException(g);
1783	<	}
3193	>	checkCompletedExceptionally(f, ex);
3194	>	checkCompletedNormally(g, r.value);
3195	>	r.assertInvoked();
3196	>	}}
3197
3198		/**
3199	<	* acceptEither result completes normally after normal completion
1787	<	* of either source
3199	>	* exceptionallyCompose completes exceptionally on exception if action does
3200		*/
3201	<	public void testAcceptEither() {
3202	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3203	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3204	<	IncAction r = new IncAction();
3205	<	CompletableFuture<Void> g = f.acceptEither(f2, r);
3206	<	f.complete(one);
3207	<	checkCompletedNormally(g, null);
3208	<	f2.complete(one);
3209	<	checkCompletedNormally(g, null);
3210	<	assertEquals(r.value, 2);
3201	>	public void testExceptionallyCompose_actionFailed() {
3202	>	for (ExecutionMode m : ExecutionMode.values())
3203	>	for (boolean createIncomplete : new boolean[] { true, false })
3204	>	{
3205	>	final CFException ex = new CFException();
3206	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
3207	>	final FailingExceptionalCompletableFutureFunction r
3208	>	= new FailingExceptionalCompletableFutureFunction(m);
3209	>	if (!createIncomplete) f.completeExceptionally(ex);
3210	>	final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r);
3211	>	if (createIncomplete) f.completeExceptionally(ex);
3212	>
3213	>	checkCompletedExceptionally(f, ex);
3214	>	checkCompletedWithWrappedException(g, r.ex);
3215	>	r.assertInvoked();
3216	>	}}
3217	>
3218	>	/**
3219	>	* exceptionallyCompose result completes exceptionally if the
3220	>	* result of the action does
3221	>	*/
3222	>	public void testExceptionallyCompose_actionReturnsFailingFuture() {
3223	>	for (ExecutionMode m : ExecutionMode.values())
3224	>	for (int order = 0; order < 6; order++)
3225	>	{
3226	>	final CFException ex0 = new CFException();
3227	>	final CFException ex = new CFException();
3228	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
3229	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
3230	>	final CompletableFuture<Integer> h;
3231	>	// Test all permutations of orders
3232	>	switch (order) {
3233	>	case 0:
3234	>	assertTrue(f.completeExceptionally(ex0));
3235	>	assertTrue(g.completeExceptionally(ex));
3236	>	h = m.exceptionallyCompose(f, x -> g);
3237	>	break;
3238	>	case 1:
3239	>	assertTrue(f.completeExceptionally(ex0));
3240	>	h = m.exceptionallyCompose(f, x -> g);
3241	>	assertTrue(g.completeExceptionally(ex));
3242	>	break;
3243	>	case 2:
3244	>	assertTrue(g.completeExceptionally(ex));
3245	>	assertTrue(f.completeExceptionally(ex0));
3246	>	h = m.exceptionallyCompose(f, x -> g);
3247	>	break;
3248	>	case 3:
3249	>	assertTrue(g.completeExceptionally(ex));
3250	>	h = m.exceptionallyCompose(f, x -> g);
3251	>	assertTrue(f.completeExceptionally(ex0));
3252	>	break;
3253	>	case 4:
3254	>	h = m.exceptionallyCompose(f, x -> g);
3255	>	assertTrue(f.completeExceptionally(ex0));
3256	>	assertTrue(g.completeExceptionally(ex));
3257	>	break;
3258	>	case 5:
3259	>	h = m.exceptionallyCompose(f, x -> g);
3260	>	assertTrue(f.completeExceptionally(ex0));
3261	>	assertTrue(g.completeExceptionally(ex));
3262	>	break;
3263	>	default: throw new AssertionError();
3264	>	}
3265	>
3266	>	checkCompletedExceptionally(g, ex);
3267	>	checkCompletedWithWrappedException(h, ex);
3268	>	checkCompletedExceptionally(f, ex0);
3269	>	}}
3270
3271	<	r = new IncAction();
1801	<	f = new CompletableFuture<>();
1802	<	f.complete(one);
1803	<	f2 = new CompletableFuture<>();
1804	<	g = f.acceptEither(f2, r);
1805	<	checkCompletedNormally(g, null);
1806	<	assertEquals(r.value, 2);
1807	<	}
3271	>	// other static methods
3272
3273		/**
3274	<	* acceptEither result completes exceptionally after exceptional
3275	<	* completion of either source
3274	>	* allOf(no component futures) returns a future completed normally
3275	>	* with the value null
3276		*/
3277	<	public void testAcceptEither2() {
3278	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3279	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1816	<	IncAction r = new IncAction();
1817	<	CompletableFuture<Void> g = f.acceptEither(f2, r);
1818	<	f.completeExceptionally(new CFException());
1819	<	f2.complete(one);
1820	<	checkCompletedWithWrappedCFException(g);
1821	<
1822	<	r = new IncAction();
1823	<	f = new CompletableFuture<>();
1824	<	f2 = new CompletableFuture<>();
1825	<	f2.completeExceptionally(new CFException());
1826	<	g = f.acceptEither(f2, r);
1827	<	checkCompletedWithWrappedCFException(g);
3277	>	public void testAllOf_empty() throws Exception {
3278	>	CompletableFuture<Void> f = CompletableFuture.allOf();
3279	>	checkCompletedNormally(f, null);
3280		}
3281
3282		/**
3283	<	* acceptEither result completes exceptionally if action does
3283	>	* allOf returns a future completed normally with the value null
3284	>	* when all components complete normally
3285		*/
3286	<	public void testAcceptEither3() {
3287	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3288	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3289	<	FailingConsumer r = new FailingConsumer();
3290	<	CompletableFuture<Void> g = f.acceptEither(f2, r);
3291	<	f2.complete(two);
3292	<	checkCompletedWithWrappedCFException(g);
3286	>	public void testAllOf_normal() throws Exception {
3287	>	for (int k = 1; k < 10; k++) {
3288	>	CompletableFuture<Integer>[] fs
3289	>	= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3290	>	for (int i = 0; i < k; i++)
3291	>	fs[i] = new CompletableFuture<>();
3292	>	CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3293	>	for (int i = 0; i < k; i++) {
3294	>	checkIncomplete(f);
3295	>	checkIncomplete(CompletableFuture.allOf(fs));
3296	>	fs[i].complete(one);
3297	>	}
3298	>	checkCompletedNormally(f, null);
3299	>	checkCompletedNormally(CompletableFuture.allOf(fs), null);
3300	>	}
3301		}
3302
3303	<	/**
3304	<	* acceptEither result completes exceptionally if either source cancelled
3305	<	*/
3306	<	public void testAcceptEither4() {
3307	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3308	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3309	<	IncAction r = new IncAction();
3310	<	CompletableFuture<Void> g = f.acceptEither(f2, r);
3311	<	assertTrue(f.cancel(true));
3312	<	checkCompletedWithWrappedCancellationException(g);
3313	<	f = new CompletableFuture<>();
3314	<	f2 = new CompletableFuture<>();
3315	<	assertTrue(f2.cancel(true));
3316	<	checkCompletedWithWrappedCancellationException(g);
3303	>	public void testAllOf_normal_backwards() throws Exception {
3304	>	for (int k = 1; k < 10; k++) {
3305	>	CompletableFuture<Integer>[] fs
3306	>	= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3307	>	for (int i = 0; i < k; i++)
3308	>	fs[i] = new CompletableFuture<>();
3309	>	CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3310	>	for (int i = k - 1; i >= 0; i--) {
3311	>	checkIncomplete(f);
3312	>	checkIncomplete(CompletableFuture.allOf(fs));
3313	>	fs[i].complete(one);
3314	>	}
3315	>	checkCompletedNormally(f, null);
3316	>	checkCompletedNormally(CompletableFuture.allOf(fs), null);
3317	>	}
3318		}
3319
3320	<	/**
3321	<	* runAfterEither result completes normally after normal completion
3322	<	* of either source
3323	<	*/
3324	<	public void testRunAfterEither() {
3325	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3326	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3327	<	Noop r = new Noop();
3328	<	CompletableFuture<Void> g = f.runAfterEither(f2, r);
3329	<	f.complete(one);
3330	<	checkCompletedNormally(g, null);
3331	<	f2.complete(one);
3332	<	checkCompletedNormally(g, null);
3333	<	assertTrue(r.ran);
3334	<
3335	<	r = new Noop();
3336	<	f = new CompletableFuture<>();
3337	<	f.complete(one);
3338	<	f2 = new CompletableFuture<>();
3339	<	g = f.runAfterEither(f2, r);
3340	<	checkCompletedNormally(g, null);
3341	<	assertTrue(r.ran);
3320	>	public void testAllOf_exceptional() throws Exception {
3321	>	for (int k = 1; k < 10; k++) {
3322	>	CompletableFuture<Integer>[] fs
3323	>	= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3324	>	CFException ex = new CFException();
3325	>	for (int i = 0; i < k; i++)
3326	>	fs[i] = new CompletableFuture<>();
3327	>	CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3328	>	for (int i = 0; i < k; i++) {
3329	>	checkIncomplete(f);
3330	>	checkIncomplete(CompletableFuture.allOf(fs));
3331	>	if (i != k / 2) {
3332	>	fs[i].complete(i);
3333	>	checkCompletedNormally(fs[i], i);
3334	>	} else {
3335	>	fs[i].completeExceptionally(ex);
3336	>	checkCompletedExceptionally(fs[i], ex);
3337	>	}
3338	>	}
3339	>	checkCompletedWithWrappedException(f, ex);
3340	>	checkCompletedWithWrappedException(CompletableFuture.allOf(fs), ex);
3341	>	}
3342		}
3343
3344		/**
3345	<	* runAfterEither result completes exceptionally after exceptional
1884	<	* completion of either source
3345	>	* anyOf(no component futures) returns an incomplete future
3346		*/
3347	<	public void testRunAfterEither2() {
3348	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3349	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3350	<	Noop r = new Noop();
3351	<	CompletableFuture<Void> g = f.runAfterEither(f2, r);
1891	<	f.completeExceptionally(new CFException());
1892	<	f2.complete(one);
1893	<	checkCompletedWithWrappedCFException(g);
3347	>	public void testAnyOf_empty() throws Exception {
3348	>	for (Integer v1 : new Integer[] { 1, null })
3349	>	{
3350	>	CompletableFuture<Object> f = CompletableFuture.anyOf();
3351	>	checkIncomplete(f);
3352
3353	<	r = new Noop();
3354	<	f = new CompletableFuture<>();
3355	<	f2 = new CompletableFuture<>();
1898	<	f2.completeExceptionally(new CFException());
1899	<	g = f.runAfterEither(f2, r);
1900	<	checkCompletedWithWrappedCFException(g);
1901	<	}
3353	>	f.complete(v1);
3354	>	checkCompletedNormally(f, v1);
3355	>	}}
3356
3357		/**
3358	<	* runAfterEither result completes exceptionally if action does
3358	>	* anyOf returns a future completed normally with a value when
3359	>	* a component future does
3360		*/
3361	<	public void testRunAfterEither3() {
3362	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3363	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3364	<	FailingNoop r = new FailingNoop();
3365	<	CompletableFuture<Void> g = f.runAfterEither(f2, r);
3366	<	f2.complete(two);
3367	<	checkCompletedWithWrappedCFException(g);
3361	>	public void testAnyOf_normal() throws Exception {
3362	>	for (int k = 0; k < 10; k++) {
3363	>	CompletableFuture[] fs = new CompletableFuture[k];
3364	>	for (int i = 0; i < k; i++)
3365	>	fs[i] = new CompletableFuture<>();
3366	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3367	>	checkIncomplete(f);
3368	>	for (int i = 0; i < k; i++) {
3369	>	fs[i].complete(i);
3370	>	checkCompletedNormally(f, 0);
3371	>	int x = (int) CompletableFuture.anyOf(fs).join();
3372	>	assertTrue(0 <= x && x <= i);
3373	>	}
3374	>	}
3375		}
3376	<
3377	<	/**
3378	<	* runAfterEither result completes exceptionally if either source cancelled
3379	<	*/
3380	<	public void testRunAfterEither4() {
3381	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3382	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3383	<	Noop r = new Noop();
3384	<	CompletableFuture<Void> g = f.runAfterEither(f2, r);
3385	<	assertTrue(f.cancel(true));
3386	<	checkCompletedWithWrappedCancellationException(g);
3387	<	f = new CompletableFuture<>();
3388	<	f2 = new CompletableFuture<>();
3389	<	assertTrue(f2.cancel(true));
1928	<	checkCompletedWithWrappedCancellationException(g);
3376	>	public void testAnyOf_normal_backwards() throws Exception {
3377	>	for (int k = 0; k < 10; k++) {
3378	>	CompletableFuture[] fs = new CompletableFuture[k];
3379	>	for (int i = 0; i < k; i++)
3380	>	fs[i] = new CompletableFuture<>();
3381	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3382	>	checkIncomplete(f);
3383	>	for (int i = k - 1; i >= 0; i--) {
3384	>	fs[i].complete(i);
3385	>	checkCompletedNormally(f, k - 1);
3386	>	int x = (int) CompletableFuture.anyOf(fs).join();
3387	>	assertTrue(i <= x && x <= k - 1);
3388	>	}
3389	>	}
3390		}
3391
3392		/**
3393	<	* thenCompose result completes normally after normal completion of source
3393	>	* anyOf result completes exceptionally when any component does.
3394		*/
3395	<	public void testThenCompose() {
3396	<	CompletableFuture<Integer> f, g;
3397	<	CompletableFutureInc r;
3398	<
3399	<	f = new CompletableFuture<>();
3400	<	g = f.thenCompose(r = new CompletableFutureInc());
3401	<	f.complete(one);
3402	<	checkCompletedNormally(g, two);
3403	<	assertTrue(r.ran);
3395	>	public void testAnyOf_exceptional() throws Exception {
3396	>	for (int k = 0; k < 10; k++) {
3397	>	CompletableFuture[] fs = new CompletableFuture[k];
3398	>	CFException[] exs = new CFException[k];
3399	>	for (int i = 0; i < k; i++) {
3400	>	fs[i] = new CompletableFuture<>();
3401	>	exs[i] = new CFException();
3402	>	}
3403	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3404	>	checkIncomplete(f);
3405	>	for (int i = 0; i < k; i++) {
3406	>	fs[i].completeExceptionally(exs[i]);
3407	>	checkCompletedWithWrappedException(f, exs[0]);
3408	>	checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3409	>	}
3410	>	}
3411	>	}
3412
3413	<	f = new CompletableFuture<>();
3414	<	f.complete(one);
3415	<	g = f.thenCompose(r = new CompletableFutureInc());
3416	<	checkCompletedNormally(g, two);
3417	<	assertTrue(r.ran);
3413	>	public void testAnyOf_exceptional_backwards() throws Exception {
3414	>	for (int k = 0; k < 10; k++) {
3415	>	CompletableFuture[] fs = new CompletableFuture[k];
3416	>	CFException[] exs = new CFException[k];
3417	>	for (int i = 0; i < k; i++) {
3418	>	fs[i] = new CompletableFuture<>();
3419	>	exs[i] = new CFException();
3420	>	}
3421	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3422	>	checkIncomplete(f);
3423	>	for (int i = k - 1; i >= 0; i--) {
3424	>	fs[i].completeExceptionally(exs[i]);
3425	>	checkCompletedWithWrappedException(f, exs[k - 1]);
3426	>	checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3427	>	}
3428	>	}
3429		}
3430
3431		/**
3432	<	* thenCompose result completes exceptionally after exceptional
1953	<	* completion of source
3432	>	* Completion methods throw NullPointerException with null arguments
3433		*/
3434	<	public void testThenCompose2() {
3435	<	CompletableFuture<Integer> f, g;
3436	<	CompletableFutureInc r;
3437	<
3438	<	f = new CompletableFuture<>();
3439	<	g = f.thenCompose(r = new CompletableFutureInc());
1961	<	f.completeExceptionally(new CFException());
1962	<	checkCompletedWithWrappedCFException(g);
3434	>	@SuppressWarnings("FutureReturnValueIgnored")
3435	>	public void testNPE() {
3436	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3437	>	CompletableFuture<Integer> g = new CompletableFuture<>();
3438	>	CompletableFuture<Integer> nullFuture = (CompletableFuture<Integer>)null;
3439	>	ThreadExecutor exec = new ThreadExecutor();
3440
3441	<	f = new CompletableFuture<>();
3442	<	f.completeExceptionally(new CFException());
1966	<	g = f.thenCompose(r = new CompletableFutureInc());
1967	<	checkCompletedWithWrappedCFException(g);
1968	<	}
3441	>	assertThrows(
3442	>	NullPointerException.class,
3443
3444	<	/**
3445	<	* thenCompose result completes exceptionally if action does
3446	<	*/
1973	<	public void testThenCompose3() {
1974	<	CompletableFuture<Integer> f, g;
1975	<	FailingCompletableFutureFunction r;
3444	>	() -> CompletableFuture.supplyAsync(null),
3445	>	() -> CompletableFuture.supplyAsync(null, exec),
3446	>	() -> CompletableFuture.supplyAsync(new IntegerSupplier(ExecutionMode.SYNC, 42), null),
3447
3448	<	f = new CompletableFuture<>();
3449	<	g = f.thenCompose(r = new FailingCompletableFutureFunction());
3450	<	f.complete(one);
1980	<	checkCompletedWithWrappedCFException(g);
3448	>	() -> CompletableFuture.runAsync(null),
3449	>	() -> CompletableFuture.runAsync(null, exec),
3450	>	() -> CompletableFuture.runAsync(() -> {}, null),
3451
3452	<	f = new CompletableFuture<>();
1983	<	f.complete(one);
1984	<	g = f.thenCompose(r = new FailingCompletableFutureFunction());
1985	<	checkCompletedWithWrappedCFException(g);
1986	<	}
3452	>	() -> f.completeExceptionally(null),
3453
3454	<	/**
3455	<	* thenCompose result completes exceptionally if source cancelled
3456	<	*/
3457	<	public void testThenCompose4() {
1992	<	CompletableFuture<Integer> f, g;
1993	<	CompletableFutureInc r;
3454	>	() -> f.thenApply(null),
3455	>	() -> f.thenApplyAsync(null),
3456	>	() -> f.thenApplyAsync(x -> x, null),
3457	>	() -> f.thenApplyAsync(null, exec),
3458
3459	<	f = new CompletableFuture<>();
3460	<	g = f.thenCompose(r = new CompletableFutureInc());
3461	<	assertTrue(f.cancel(true));
3462	<	checkCompletedWithWrappedCancellationException(g);
3459	>	() -> f.thenAccept(null),
3460	>	() -> f.thenAcceptAsync(null),
3461	>	() -> f.thenAcceptAsync(x -> {} , null),
3462	>	() -> f.thenAcceptAsync(null, exec),
3463
3464	<	f = new CompletableFuture<>();
3465	<	assertTrue(f.cancel(true));
3466	<	g = f.thenCompose(r = new CompletableFutureInc());
3467	<	checkCompletedWithWrappedCancellationException(g);
2004	<	}
3464	>	() -> f.thenRun(null),
3465	>	() -> f.thenRunAsync(null),
3466	>	() -> f.thenRunAsync(() -> {} , null),
3467	>	() -> f.thenRunAsync(null, exec),
3468
3469	<	// asyncs
3469	>	() -> f.thenCombine(g, null),
3470	>	() -> f.thenCombineAsync(g, null),
3471	>	() -> f.thenCombineAsync(g, null, exec),
3472	>	() -> f.thenCombine(nullFuture, (x, y) -> x),
3473	>	() -> f.thenCombineAsync(nullFuture, (x, y) -> x),
3474	>	() -> f.thenCombineAsync(nullFuture, (x, y) -> x, exec),
3475	>	() -> f.thenCombineAsync(g, (x, y) -> x, null),
3476
3477	<	/**
3478	<	* thenRunAsync result completes normally after normal completion of source
3479	<	*/
3480	<	public void testThenRunAsync() {
3481	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3482	<	Noop r = new Noop();
3483	<	CompletableFuture<Void> g = f.thenRunAsync(r);
2015	<	f.complete(null);
2016	<	checkCompletedNormally(g, null);
3477	>	() -> f.thenAcceptBoth(g, null),
3478	>	() -> f.thenAcceptBothAsync(g, null),
3479	>	() -> f.thenAcceptBothAsync(g, null, exec),
3480	>	() -> f.thenAcceptBoth(nullFuture, (x, y) -> {}),
3481	>	() -> f.thenAcceptBothAsync(nullFuture, (x, y) -> {}),
3482	>	() -> f.thenAcceptBothAsync(nullFuture, (x, y) -> {}, exec),
3483	>	() -> f.thenAcceptBothAsync(g, (x, y) -> {}, null),
3484
3485	<	// reordered version
3486	<	f = new CompletableFuture<>();
3487	<	f.complete(null);
3488	<	r = new Noop();
3489	<	g = f.thenRunAsync(r);
3490	<	checkCompletedNormally(g, null);
3491	<	}
3485	>	() -> f.runAfterBoth(g, null),
3486	>	() -> f.runAfterBothAsync(g, null),
3487	>	() -> f.runAfterBothAsync(g, null, exec),
3488	>	() -> f.runAfterBoth(nullFuture, () -> {}),
3489	>	() -> f.runAfterBothAsync(nullFuture, () -> {}),
3490	>	() -> f.runAfterBothAsync(nullFuture, () -> {}, exec),
3491	>	() -> f.runAfterBothAsync(g, () -> {}, null),
3492
3493	<	/**
3494	<	* thenRunAsync result completes exceptionally after exceptional
3495	<	* completion of source
3496	<	*/
3497	<	public void testThenRunAsync2() {
3498	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3499	<	Noop r = new Noop();
2033	<	CompletableFuture<Void> g = f.thenRunAsync(r);
2034	<	f.completeExceptionally(new CFException());
2035	<	try {
2036	<	g.join();
2037	<	shouldThrow();
2038	<	} catch (CompletionException success) {}
2039	<	checkCompletedWithWrappedCFException(g);
2040	<	}
3493	>	() -> f.applyToEither(g, null),
3494	>	() -> f.applyToEitherAsync(g, null),
3495	>	() -> f.applyToEitherAsync(g, null, exec),
3496	>	() -> f.applyToEither(nullFuture, x -> x),
3497	>	() -> f.applyToEitherAsync(nullFuture, x -> x),
3498	>	() -> f.applyToEitherAsync(nullFuture, x -> x, exec),
3499	>	() -> f.applyToEitherAsync(g, x -> x, null),
3500
3501	<	/**
3502	<	* thenRunAsync result completes exceptionally if action does
3503	<	*/
3504	<	public void testThenRunAsync3() {
3505	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3506	<	FailingNoop r = new FailingNoop();
3507	<	CompletableFuture<Void> g = f.thenRunAsync(r);
2049	<	f.complete(null);
2050	<	checkCompletedWithWrappedCFException(g);
2051	<	}
3501	>	() -> f.acceptEither(g, null),
3502	>	() -> f.acceptEitherAsync(g, null),
3503	>	() -> f.acceptEitherAsync(g, null, exec),
3504	>	() -> f.acceptEither(nullFuture, x -> {}),
3505	>	() -> f.acceptEitherAsync(nullFuture, x -> {}),
3506	>	() -> f.acceptEitherAsync(nullFuture, x -> {}, exec),
3507	>	() -> f.acceptEitherAsync(g, x -> {}, null),
3508
3509	<	/**
3510	<	* thenRunAsync result completes exceptionally if source cancelled
3511	<	*/
3512	<	public void testThenRunAsync4() {
3513	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3514	<	Noop r = new Noop();
3515	<	CompletableFuture<Void> g = f.thenRunAsync(r);
2060	<	assertTrue(f.cancel(true));
2061	<	checkCompletedWithWrappedCancellationException(g);
2062	<	}
3509	>	() -> f.runAfterEither(g, null),
3510	>	() -> f.runAfterEitherAsync(g, null),
3511	>	() -> f.runAfterEitherAsync(g, null, exec),
3512	>	() -> f.runAfterEither(nullFuture, () -> {}),
3513	>	() -> f.runAfterEitherAsync(nullFuture, () -> {}),
3514	>	() -> f.runAfterEitherAsync(nullFuture, () -> {}, exec),
3515	>	() -> f.runAfterEitherAsync(g, () -> {}, null),
3516
3517	<	/**
3518	<	* thenApplyAsync result completes normally after normal completion of source
3519	<	*/
3520	<	public void testThenApplyAsync() {
2068	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2069	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc);
2070	<	f.complete(one);
2071	<	checkCompletedNormally(g, two);
2072	<	}
3517	>	() -> f.thenCompose(null),
3518	>	() -> f.thenComposeAsync(null),
3519	>	() -> f.thenComposeAsync(new CompletableFutureInc(ExecutionMode.EXECUTOR), null),
3520	>	() -> f.thenComposeAsync(null, exec),
3521
3522	<	/**
2075	<	* thenApplyAsync result completes exceptionally after exceptional
2076	<	* completion of source
2077	<	*/
2078	<	public void testThenApplyAsync2() {
2079	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2080	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc);
2081	<	f.completeExceptionally(new CFException());
2082	<	checkCompletedWithWrappedCFException(g);
2083	<	}
3522	>	() -> f.exceptionally(null),
3523
3524	<	/**
2086	<	* thenApplyAsync result completes exceptionally if action does
2087	<	*/
2088	<	public void testThenApplyAsync3() {
2089	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2090	<	FailingFunction r = new FailingFunction();
2091	<	CompletableFuture<Integer> g = f.thenApplyAsync(r);
2092	<	f.complete(null);
2093	<	checkCompletedWithWrappedCFException(g);
2094	<	}
3524	>	() -> f.handle(null),
3525
3526	<	/**
3527	<	* thenApplyAsync result completes exceptionally if source cancelled
3528	<	*/
3529	<	public void testThenApplyAsync4() {
2100	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2101	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc);
2102	<	assertTrue(f.cancel(true));
2103	<	checkCompletedWithWrappedCancellationException(g);
2104	<	}
3526	>	() -> CompletableFuture.allOf((CompletableFuture<?>)null),
3527	>	() -> CompletableFuture.allOf((CompletableFuture<?>[])null),
3528	>	() -> CompletableFuture.allOf(f, null),
3529	>	() -> CompletableFuture.allOf(null, f),
3530
3531	<	/**
3532	<	* thenAcceptAsync result completes normally after normal
3533	<	* completion of source
3534	<	*/
2110	<	public void testThenAcceptAsync() {
2111	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2112	<	IncAction r = new IncAction();
2113	<	CompletableFuture<Void> g = f.thenAcceptAsync(r);
2114	<	f.complete(one);
2115	<	checkCompletedNormally(g, null);
2116	<	assertEquals(r.value, 2);
2117	<	}
3531	>	() -> CompletableFuture.anyOf((CompletableFuture<?>)null),
3532	>	() -> CompletableFuture.anyOf((CompletableFuture<?>[])null),
3533	>	() -> CompletableFuture.anyOf(f, null),
3534	>	() -> CompletableFuture.anyOf(null, f),
3535
3536	<	/**
2120	<	* thenAcceptAsync result completes exceptionally after exceptional
2121	<	* completion of source
2122	<	*/
2123	<	public void testThenAcceptAsync2() {
2124	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2125	<	IncAction r = new IncAction();
2126	<	CompletableFuture<Void> g = f.thenAcceptAsync(r);
2127	<	f.completeExceptionally(new CFException());
2128	<	checkCompletedWithWrappedCFException(g);
2129	<	}
3536	>	() -> f.obtrudeException(null),
3537
3538	<	/**
3539	<	* thenAcceptAsync result completes exceptionally if action does
3540	<	*/
2134	<	public void testThenAcceptAsync3() {
2135	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2136	<	FailingConsumer r = new FailingConsumer();
2137	<	CompletableFuture<Void> g = f.thenAcceptAsync(r);
2138	<	f.complete(null);
2139	<	checkCompletedWithWrappedCFException(g);
2140	<	}
3538	>	() -> CompletableFuture.delayedExecutor(1L, SECONDS, null),
3539	>	() -> CompletableFuture.delayedExecutor(1L, null, exec),
3540	>	() -> CompletableFuture.delayedExecutor(1L, null),
3541
3542	<	/**
3543	<	* thenAcceptAsync result completes exceptionally if source cancelled
2144	<	*/
2145	<	public void testThenAcceptAsync4() {
2146	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2147	<	IncAction r = new IncAction();
2148	<	CompletableFuture<Void> g = f.thenAcceptAsync(r);
2149	<	assertTrue(f.cancel(true));
2150	<	checkCompletedWithWrappedCancellationException(g);
2151	<	}
3542	>	() -> f.orTimeout(1L, null),
3543	>	() -> f.completeOnTimeout(42, 1L, null),
3544
3545	<	/**
3546	<	* applyToEitherAsync result completes normally after normal
2155	<	* completion of sources
2156	<	*/
2157	<	public void testApplyToEitherAsync() {
2158	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2159	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2160	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc);
2161	<	f.complete(one);
2162	<	checkCompletedNormally(g, two);
3545	>	() -> CompletableFuture.failedFuture(null),
3546	>	() -> CompletableFuture.failedStage(null));
3547
3548	<	f = new CompletableFuture<>();
2165	<	f.complete(one);
2166	<	f2 = new CompletableFuture<>();
2167	<	g = f.applyToEitherAsync(f2, inc);
2168	<	checkCompletedNormally(g, two);
3548	>	assertEquals(0, exec.count.get());
3549		}
3550
3551		/**
3552	<	* applyToEitherAsync result completes exceptionally after exceptional
2173	<	* completion of source
3552	>	* Test submissions to an executor that rejects all tasks.
3553		*/
3554	<	public void testApplyToEitherAsync2() {
3555	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3556	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3557	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc);
3558	<	f.completeExceptionally(new CFException());
3559	<	checkCompletedWithWrappedCFException(g);
3554	>	public void testRejectingExecutor() {
3555	>	for (Integer v : new Integer[] { 1, null })
3556	>	{
3557	>	final CountingRejectingExecutor e = new CountingRejectingExecutor();
3558	>
3559	>	final CompletableFuture<Integer> complete = CompletableFuture.completedFuture(v);
3560	>	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3561	>
3562	>	List<CompletableFuture<?>> futures = new ArrayList<>();
3563	>
3564	>	List<CompletableFuture<Integer>> srcs = new ArrayList<>();
3565	>	srcs.add(complete);
3566	>	srcs.add(incomplete);
3567	>
3568	>	for (CompletableFuture<Integer> src : srcs) {
3569	>	List<CompletableFuture<?>> fs = new ArrayList<>();
3570	>	fs.add(src.thenRunAsync(() -> {}, e));
3571	>	fs.add(src.thenAcceptAsync(z -> {}, e));
3572	>	fs.add(src.thenApplyAsync(z -> z, e));
3573	>
3574	>	fs.add(src.thenCombineAsync(src, (x, y) -> x, e));
3575	>	fs.add(src.thenAcceptBothAsync(src, (x, y) -> {}, e));
3576	>	fs.add(src.runAfterBothAsync(src, () -> {}, e));
3577	>
3578	>	fs.add(src.applyToEitherAsync(src, z -> z, e));
3579	>	fs.add(src.acceptEitherAsync(src, z -> {}, e));
3580	>	fs.add(src.runAfterEitherAsync(src, () -> {}, e));
3581	>
3582	>	fs.add(src.thenComposeAsync(z -> null, e));
3583	>	fs.add(src.whenCompleteAsync((z, t) -> {}, e));
3584	>	fs.add(src.handleAsync((z, t) -> null, e));
3585	>
3586	>	for (CompletableFuture<?> future : fs) {
3587	>	if (src.isDone())
3588	>	checkCompletedWithWrappedException(future, e.ex);
3589	>	else
3590	>	checkIncomplete(future);
3591	>	}
3592	>	futures.addAll(fs);
3593	>	}
3594
3595	<	f = new CompletableFuture<>();
3596	<	f2 = new CompletableFuture<>();
2184	<	f2.completeExceptionally(new CFException());
2185	<	g = f.applyToEitherAsync(f2, inc);
2186	<	f.complete(one);
2187	<	checkCompletedWithWrappedCFException(g);
2188	<	}
3595	>	{
3596	>	List<CompletableFuture<?>> fs = new ArrayList<>();
3597
3598	<	/**
3599	<	* applyToEitherAsync result completes exceptionally if action does
2192	<	*/
2193	<	public void testApplyToEitherAsync3() {
2194	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2195	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2196	<	FailingFunction r = new FailingFunction();
2197	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, r);
2198	<	f.complete(one);
2199	<	checkCompletedWithWrappedCFException(g);
2200	<	}
3598	>	fs.add(complete.thenCombineAsync(incomplete, (x, y) -> x, e));
3599	>	fs.add(incomplete.thenCombineAsync(complete, (x, y) -> x, e));
3600
3601	<	/**
3602	<	* applyToEitherAsync result completes exceptionally if either source cancelled
2204	<	*/
2205	<	public void testApplyToEitherAsync4() {
2206	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2207	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2208	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc);
2209	<	assertTrue(f.cancel(true));
2210	<	checkCompletedWithWrappedCancellationException(g);
3601	>	fs.add(complete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3602	>	fs.add(incomplete.thenAcceptBothAsync(complete, (x, y) -> {}, e));
3603
3604	<	f = new CompletableFuture<>();
3605	<	f2 = new CompletableFuture<>();
2214	<	assertTrue(f2.cancel(true));
2215	<	g = f.applyToEitherAsync(f2, inc);
2216	<	checkCompletedWithWrappedCancellationException(g);
2217	<	}
3604	>	fs.add(complete.runAfterBothAsync(incomplete, () -> {}, e));
3605	>	fs.add(incomplete.runAfterBothAsync(complete, () -> {}, e));
3606
3607	<	/**
3608	<	* acceptEitherAsync result completes normally after normal
3609	<	* completion of sources
3610	<	*/
2223	<	public void testAcceptEitherAsync() {
2224	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2225	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2226	<	IncAction r = new IncAction();
2227	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
2228	<	f.complete(one);
2229	<	checkCompletedNormally(g, null);
2230	<	assertEquals(r.value, 2);
3607	>	for (CompletableFuture<?> future : fs)
3608	>	checkIncomplete(future);
3609	>	futures.addAll(fs);
3610	>	}
3611
3612	<	r = new IncAction();
3613	<	f = new CompletableFuture<>();
2234	<	f.complete(one);
2235	<	f2 = new CompletableFuture<>();
2236	<	g = f.acceptEitherAsync(f2, r);
2237	<	checkCompletedNormally(g, null);
2238	<	assertEquals(r.value, 2);
2239	<	}
3612	>	{
3613	>	List<CompletableFuture<?>> fs = new ArrayList<>();
3614
3615	<	/**
3616	<	* acceptEitherAsync result completes exceptionally after exceptional
2243	<	* completion of source
2244	<	*/
2245	<	public void testAcceptEitherAsync2() {
2246	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2247	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2248	<	IncAction r = new IncAction();
2249	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
2250	<	f.completeExceptionally(new CFException());
2251	<	checkCompletedWithWrappedCFException(g);
3615	>	fs.add(complete.applyToEitherAsync(incomplete, z -> z, e));
3616	>	fs.add(incomplete.applyToEitherAsync(complete, z -> z, e));
3617
3618	<	r = new IncAction();
3619	<	f = new CompletableFuture<>();
2255	<	f2 = new CompletableFuture<>();
2256	<	f2.completeExceptionally(new CFException());
2257	<	g = f.acceptEitherAsync(f2, r);
2258	<	f.complete(one);
2259	<	checkCompletedWithWrappedCFException(g);
2260	<	}
3618	>	fs.add(complete.acceptEitherAsync(incomplete, z -> {}, e));
3619	>	fs.add(incomplete.acceptEitherAsync(complete, z -> {}, e));
3620
3621	<	/**
3622	<	* acceptEitherAsync result completes exceptionally if action does
2264	<	*/
2265	<	public void testAcceptEitherAsync3() {
2266	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2267	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2268	<	FailingConsumer r = new FailingConsumer();
2269	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
2270	<	f.complete(one);
2271	<	checkCompletedWithWrappedCFException(g);
2272	<	}
3621	>	fs.add(complete.runAfterEitherAsync(incomplete, () -> {}, e));
3622	>	fs.add(incomplete.runAfterEitherAsync(complete, () -> {}, e));
3623
3624	<	/**
3625	<	* acceptEitherAsync result completes exceptionally if either
3626	<	* source cancelled
3627	<	*/
2278	<	public void testAcceptEitherAsync4() {
2279	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2280	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2281	<	IncAction r = new IncAction();
2282	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
2283	<	assertTrue(f.cancel(true));
2284	<	checkCompletedWithWrappedCancellationException(g);
3624	>	for (CompletableFuture<?> future : fs)
3625	>	checkCompletedWithWrappedException(future, e.ex);
3626	>	futures.addAll(fs);
3627	>	}
3628
3629	<	r = new IncAction();
2287	<	f = new CompletableFuture<>();
2288	<	f2 = new CompletableFuture<>();
2289	<	assertTrue(f2.cancel(true));
2290	<	g = f.acceptEitherAsync(f2, r);
2291	<	checkCompletedWithWrappedCancellationException(g);
2292	<	}
3629	>	incomplete.complete(v);
3630
3631	<	/**
3632	<	* runAfterEitherAsync result completes normally after normal
2296	<	* completion of sources
2297	<	*/
2298	<	public void testRunAfterEitherAsync() {
2299	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2300	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2301	<	Noop r = new Noop();
2302	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
2303	<	f.complete(one);
2304	<	checkCompletedNormally(g, null);
2305	<	assertTrue(r.ran);
3631	>	for (CompletableFuture<?> future : futures)
3632	>	checkCompletedWithWrappedException(future, e.ex);
3633
3634	<	r = new Noop();
3635	<	f = new CompletableFuture<>();
2309	<	f.complete(one);
2310	<	f2 = new CompletableFuture<>();
2311	<	g = f.runAfterEitherAsync(f2, r);
2312	<	checkCompletedNormally(g, null);
2313	<	assertTrue(r.ran);
2314	<	}
3634	>	assertEquals(futures.size(), e.count.get());
3635	>	}}
3636
3637		/**
3638	<	* runAfterEitherAsync result completes exceptionally after exceptional
3639	<	* completion of source
3638	>	* Test submissions to an executor that rejects all tasks, but
3639	>	* should never be invoked because the dependent future is
3640	>	* explicitly completed.
3641		*/
3642	<	public void testRunAfterEitherAsync2() {
3643	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3644	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3645	<	Noop r = new Noop();
2324	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
2325	<	f.completeExceptionally(new CFException());
2326	<	checkCompletedWithWrappedCFException(g);
3642	>	public void testRejectingExecutorNeverInvoked() {
3643	>	for (Integer v : new Integer[] { 1, null })
3644	>	{
3645	>	final CountingRejectingExecutor e = new CountingRejectingExecutor();
3646
3647	<	r = new Noop();
3648	<	f = new CompletableFuture<>();
2330	<	f2 = new CompletableFuture<>();
2331	<	f2.completeExceptionally(new CFException());
2332	<	g = f.runAfterEitherAsync(f2, r);
2333	<	f.complete(one);
2334	<	checkCompletedWithWrappedCFException(g);
2335	<	}
3647	>	final CompletableFuture<Integer> complete = CompletableFuture.completedFuture(v);
3648	>	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3649
3650	<	/**
3651	<	* runAfterEitherAsync result completes exceptionally if action does
3652	<	*/
3653	<	public void testRunAfterEitherAsync3() {
2341	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2342	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2343	<	FailingNoop r = new FailingNoop();
2344	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
2345	<	f.complete(one);
2346	<	checkCompletedWithWrappedCFException(g);
2347	<	}
3650	>	List<CompletableFuture<?>> fs = new ArrayList<>();
3651	>	fs.add(incomplete.thenRunAsync(() -> {}, e));
3652	>	fs.add(incomplete.thenAcceptAsync(z -> {}, e));
3653	>	fs.add(incomplete.thenApplyAsync(z -> z, e));
3654
3655	<	/**
3656	<	* runAfterEitherAsync result completes exceptionally if either
3657	<	* source cancelled
2352	<	*/
2353	<	public void testRunAfterEitherAsync4() {
2354	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2355	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2356	<	Noop r = new Noop();
2357	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
2358	<	assertTrue(f.cancel(true));
2359	<	checkCompletedWithWrappedCancellationException(g);
3655	>	fs.add(incomplete.thenCombineAsync(incomplete, (x, y) -> x, e));
3656	>	fs.add(incomplete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3657	>	fs.add(incomplete.runAfterBothAsync(incomplete, () -> {}, e));
3658
3659	<	r = new Noop();
3660	<	f = new CompletableFuture<>();
3661	<	f2 = new CompletableFuture<>();
2364	<	assertTrue(f2.cancel(true));
2365	<	g = f.runAfterEitherAsync(f2, r);
2366	<	checkCompletedWithWrappedCancellationException(g);
2367	<	}
3659	>	fs.add(incomplete.applyToEitherAsync(incomplete, z -> z, e));
3660	>	fs.add(incomplete.acceptEitherAsync(incomplete, z -> {}, e));
3661	>	fs.add(incomplete.runAfterEitherAsync(incomplete, () -> {}, e));
3662
3663	<	/**
3664	<	* thenComposeAsync result completes normally after normal
3665	<	* completion of source
2372	<	*/
2373	<	public void testThenComposeAsync() {
2374	<	CompletableFuture<Integer> f, g;
2375	<	CompletableFutureInc r;
3663	>	fs.add(incomplete.thenComposeAsync(z -> null, e));
3664	>	fs.add(incomplete.whenCompleteAsync((z, t) -> {}, e));
3665	>	fs.add(incomplete.handleAsync((z, t) -> null, e));
3666
3667	<	f = new CompletableFuture<>();
3668	<	g = f.thenComposeAsync(r = new CompletableFutureInc());
2379	<	f.complete(one);
2380	<	checkCompletedNormally(g, two);
3667	>	fs.add(complete.thenCombineAsync(incomplete, (x, y) -> x, e));
3668	>	fs.add(incomplete.thenCombineAsync(complete, (x, y) -> x, e));
3669
3670	<	f = new CompletableFuture<>();
3671	<	f.complete(one);
2384	<	g = f.thenComposeAsync(r = new CompletableFutureInc());
2385	<	checkCompletedNormally(g, two);
2386	<	}
3670	>	fs.add(complete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3671	>	fs.add(incomplete.thenAcceptBothAsync(complete, (x, y) -> {}, e));
3672
3673	<	/**
3674	<	* thenComposeAsync result completes exceptionally after
2390	<	* exceptional completion of source
2391	<	*/
2392	<	public void testThenComposeAsync2() {
2393	<	CompletableFuture<Integer> f, g;
2394	<	CompletableFutureInc r;
3673	>	fs.add(complete.runAfterBothAsync(incomplete, () -> {}, e));
3674	>	fs.add(incomplete.runAfterBothAsync(complete, () -> {}, e));
3675
3676	<	f = new CompletableFuture<>();
3677	<	g = f.thenComposeAsync(r = new CompletableFutureInc());
2398	<	f.completeExceptionally(new CFException());
2399	<	checkCompletedWithWrappedCFException(g);
2400	<	assertFalse(r.ran);
3676	>	for (CompletableFuture<?> future : fs)
3677	>	checkIncomplete(future);
3678
3679	<	f = new CompletableFuture<>();
3680	<	f.completeExceptionally(new CFException());
2404	<	g = f.thenComposeAsync(r = new CompletableFutureInc());
2405	<	checkCompletedWithWrappedCFException(g);
2406	<	assertFalse(r.ran);
2407	<	}
3679	>	for (CompletableFuture<?> future : fs)
3680	>	future.complete(null);
3681
3682	<	/**
2410	<	* thenComposeAsync result completes exceptionally if action does
2411	<	*/
2412	<	public void testThenComposeAsync3() {
2413	<	CompletableFuture<Integer> f, g;
2414	<	FailingCompletableFutureFunction r;
3682	>	incomplete.complete(v);
3683
3684	<	f = new CompletableFuture<>();
3685	<	g = f.thenComposeAsync(r = new FailingCompletableFutureFunction());
2418	<	f.complete(one);
2419	<	checkCompletedWithWrappedCFException(g);
3684	>	for (CompletableFuture<?> future : fs)
3685	>	checkCompletedNormally(future, null);
3686
3687	<	f = new CompletableFuture<>();
3688	<	f.complete(one);
2423	<	g = f.thenComposeAsync(r = new FailingCompletableFutureFunction());
2424	<	checkCompletedWithWrappedCFException(g);
2425	<	}
3687	>	assertEquals(0, e.count.get());
3688	>	}}
3689
3690		/**
3691	<	* thenComposeAsync result completes exceptionally if source cancelled
3691	>	* toCompletableFuture returns this CompletableFuture.
3692		*/
3693	<	public void testThenComposeAsync4() {
3694	<	CompletableFuture<Integer> f, g;
3695	<	CompletableFutureInc r;
2433	<
2434	<	f = new CompletableFuture<>();
2435	<	g = f.thenComposeAsync(r = new CompletableFutureInc());
2436	<	assertTrue(f.cancel(true));
2437	<	checkCompletedWithWrappedCancellationException(g);
2438	<
2439	<	f = new CompletableFuture<>();
2440	<	assertTrue(f.cancel(true));
2441	<	g = f.thenComposeAsync(r = new CompletableFutureInc());
2442	<	checkCompletedWithWrappedCancellationException(g);
3693	>	public void testToCompletableFuture() {
3694	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3695	>	assertSame(f, f.toCompletableFuture());
3696		}
3697
3698	<	// async with explicit executors
3698	>	// jdk9
3699
3700		/**
3701	<	* thenRunAsync result completes normally after normal completion of source
3701	>	* newIncompleteFuture returns an incomplete CompletableFuture
3702		*/
3703	<	public void testThenRunAsyncE() {
3703	>	public void testNewIncompleteFuture() {
3704	>	for (Integer v1 : new Integer[] { 1, null })
3705	>	{
3706		CompletableFuture<Integer> f = new CompletableFuture<>();
3707	<	Noop r = new Noop();
3708	<	CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
3709	<	f.complete(null);
3710	<	checkCompletedNormally(g, null);
3711	<
3712	<	// reordered version
3713	<	f = new CompletableFuture<>();
3714	<	f.complete(null);
3715	<	r = new Noop();
3716	<	g = f.thenRunAsync(r, new ThreadExecutor());
2462	<	checkCompletedNormally(g, null);
2463	<	}
3707	>	CompletableFuture<Integer> g = f.newIncompleteFuture();
3708	>	checkIncomplete(f);
3709	>	checkIncomplete(g);
3710	>	f.complete(v1);
3711	>	checkCompletedNormally(f, v1);
3712	>	checkIncomplete(g);
3713	>	g.complete(v1);
3714	>	checkCompletedNormally(g, v1);
3715	>	assertSame(g.getClass(), CompletableFuture.class);
3716	>	}}
3717
3718		/**
3719	<	* thenRunAsync result completes exceptionally after exceptional
2467	<	* completion of source
3719	>	* completedStage returns a completed CompletionStage
3720		*/
3721	<	public void testThenRunAsync2E() {
3722	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3723	<	Noop r = new Noop();
3724	<	CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
3725	<	f.completeExceptionally(new CFException());
3726	<	try {
3727	<	g.join();
2476	<	shouldThrow();
2477	<	} catch (CompletionException success) {}
2478	<	checkCompletedWithWrappedCFException(g);
3721	>	public void testCompletedStage() {
3722	>	AtomicInteger x = new AtomicInteger(0);
3723	>	AtomicReference<Throwable> r = new AtomicReference<>();
3724	>	CompletionStage<Integer> f = CompletableFuture.completedStage(1);
3725	>	f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3726	>	assertEquals(x.get(), 1);
3727	>	assertNull(r.get());
3728		}
3729
3730		/**
3731	<	* thenRunAsync result completes exceptionally if action does
3731	>	* defaultExecutor by default returns the commonPool if
3732	>	* it supports more than one thread.
3733		*/
3734	<	public void testThenRunAsync3E() {
3734	>	public void testDefaultExecutor() {
3735		CompletableFuture<Integer> f = new CompletableFuture<>();
3736	<	FailingNoop r = new FailingNoop();
3737	<	CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
3738	<	f.complete(null);
3739	<	checkCompletedWithWrappedCFException(g);
3736	>	Executor e = f.defaultExecutor();
3737	>	Executor c = ForkJoinPool.commonPool();
3738	>	if (ForkJoinPool.getCommonPoolParallelism() > 1)
3739	>	assertSame(e, c);
3740	>	else
3741	>	assertNotSame(e, c);
3742		}
3743
3744		/**
3745	<	* thenRunAsync result completes exceptionally if source cancelled
3745	>	* failedFuture returns a CompletableFuture completed
3746	>	* exceptionally with the given Exception
3747		*/
3748	<	public void testThenRunAsync4E() {
3749	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3750	<	Noop r = new Noop();
3751	<	CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
2499	<	assertTrue(f.cancel(true));
2500	<	checkCompletedWithWrappedCancellationException(g);
3748	>	public void testFailedFuture() {
3749	>	CFException ex = new CFException();
3750	>	CompletableFuture<Integer> f = CompletableFuture.failedFuture(ex);
3751	>	checkCompletedExceptionally(f, ex);
3752		}
3753
3754		/**
3755	<	* thenApplyAsync result completes normally after normal completion of source
3755	>	* failedFuture(null) throws NPE
3756		*/
3757	<	public void testThenApplyAsyncE() {
3758	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3759	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc, new ThreadExecutor());
3760	<	f.complete(one);
3761	<	checkCompletedNormally(g, two);
3757	>	public void testFailedFuture_null() {
3758	>	try {
3759	>	CompletableFuture<Integer> f = CompletableFuture.failedFuture(null);
3760	>	shouldThrow();
3761	>	} catch (NullPointerException success) {}
3762		}
3763
3764		/**
3765	<	* thenApplyAsync result completes exceptionally after exceptional
3766	<	* completion of source
3765	>	* copy returns a CompletableFuture that is completed normally,
3766	>	* with the same value, when source is.
3767		*/
3768	<	public void testThenApplyAsync2E() {
3768	>	public void testCopy_normalCompletion() {
3769	>	for (boolean createIncomplete : new boolean[] { true, false })
3770	>	for (Integer v1 : new Integer[] { 1, null })
3771	>	{
3772		CompletableFuture<Integer> f = new CompletableFuture<>();
3773	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc, new ThreadExecutor());
3774	<	f.completeExceptionally(new CFException());
3775	<	checkCompletedWithWrappedCFException(g);
3776	<	}
3773	>	if (!createIncomplete) assertTrue(f.complete(v1));
3774	>	CompletableFuture<Integer> g = f.copy();
3775	>	if (createIncomplete) {
3776	>	checkIncomplete(f);
3777	>	checkIncomplete(g);
3778	>	assertTrue(f.complete(v1));
3779	>	}
3780	>	checkCompletedNormally(f, v1);
3781	>	checkCompletedNormally(g, v1);
3782	>	}}
3783
3784		/**
3785	<	* thenApplyAsync result completes exceptionally if action does
3785	>	* copy returns a CompletableFuture that is completed exceptionally
3786	>	* when source is.
3787		*/
3788	<	public void testThenApplyAsync3E() {
3788	>	public void testCopy_exceptionalCompletion() {
3789	>	for (boolean createIncomplete : new boolean[] { true, false })
3790	>	{
3791	>	CFException ex = new CFException();
3792		CompletableFuture<Integer> f = new CompletableFuture<>();
3793	<	FailingFunction r = new FailingFunction();
3794	<	CompletableFuture<Integer> g = f.thenApplyAsync(r, new ThreadExecutor());
3795	<	f.complete(null);
3796	<	checkCompletedWithWrappedCFException(g);
3797	<	}
3793	>	if (!createIncomplete) f.completeExceptionally(ex);
3794	>	CompletableFuture<Integer> g = f.copy();
3795	>	if (createIncomplete) {
3796	>	checkIncomplete(f);
3797	>	checkIncomplete(g);
3798	>	f.completeExceptionally(ex);
3799	>	}
3800	>	checkCompletedExceptionally(f, ex);
3801	>	checkCompletedWithWrappedException(g, ex);
3802	>	}}
3803
3804		/**
3805	<	* thenApplyAsync result completes exceptionally if source cancelled
3805	>	* Completion of a copy does not complete its source.
3806		*/
3807	<	public void testThenApplyAsync4E() {
3807	>	public void testCopy_oneWayPropagation() {
3808		CompletableFuture<Integer> f = new CompletableFuture<>();
3809	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc, new ThreadExecutor());
3810	<	assertTrue(f.cancel(true));
3811	<	checkCompletedWithWrappedCancellationException(g);
3809	>	assertTrue(f.copy().complete(1));
3810	>	assertTrue(f.copy().complete(null));
3811	>	assertTrue(f.copy().cancel(true));
3812	>	assertTrue(f.copy().cancel(false));
3813	>	assertTrue(f.copy().completeExceptionally(new CFException()));
3814	>	checkIncomplete(f);
3815		}
3816
3817		/**
3818	<	* thenAcceptAsync result completes normally after normal
3819	<	* completion of source
3818	>	* minimalCompletionStage returns a CompletableFuture that is
3819	>	* completed normally, with the same value, when source is.
3820		*/
3821	<	public void testThenAcceptAsyncE() {
3821	>	public void testMinimalCompletionStage() {
3822		CompletableFuture<Integer> f = new CompletableFuture<>();
3823	<	IncAction r = new IncAction();
3824	<	CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
3825	<	f.complete(one);
3826	<	checkCompletedNormally(g, null);
3827	<	assertEquals(r.value, 2);
3823	>	CompletionStage<Integer> g = f.minimalCompletionStage();
3824	>	AtomicInteger x = new AtomicInteger(0);
3825	>	AtomicReference<Throwable> r = new AtomicReference<>();
3826	>	checkIncomplete(f);
3827	>	g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3828	>	f.complete(1);
3829	>	checkCompletedNormally(f, 1);
3830	>	assertEquals(x.get(), 1);
3831	>	assertNull(r.get());
3832		}
3833
3834		/**
3835	<	* thenAcceptAsync result completes exceptionally after exceptional
3836	<	* completion of source
3835	>	* minimalCompletionStage returns a CompletableFuture that is
3836	>	* completed exceptionally when source is.
3837		*/
3838	<	public void testThenAcceptAsync2E() {
3838	>	public void testMinimalCompletionStage2() {
3839		CompletableFuture<Integer> f = new CompletableFuture<>();
3840	<	IncAction r = new IncAction();
3841	<	CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
3842	<	f.completeExceptionally(new CFException());
3843	<	checkCompletedWithWrappedCFException(g);
3840	>	CompletionStage<Integer> g = f.minimalCompletionStage();
3841	>	AtomicInteger x = new AtomicInteger(0);
3842	>	AtomicReference<Throwable> r = new AtomicReference<>();
3843	>	g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3844	>	checkIncomplete(f);
3845	>	CFException ex = new CFException();
3846	>	f.completeExceptionally(ex);
3847	>	checkCompletedExceptionally(f, ex);
3848	>	assertEquals(x.get(), 0);
3849	>	assertEquals(r.get().getCause(), ex);
3850		}
3851
3852		/**
3853	<	* thenAcceptAsync result completes exceptionally if action does
3853	>	* failedStage returns a CompletionStage completed
3854	>	* exceptionally with the given Exception
3855		*/
3856	<	public void testThenAcceptAsync3E() {
3857	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3858	<	FailingConsumer r = new FailingConsumer();
3859	<	CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
3860	<	f.complete(null);
3861	<	checkCompletedWithWrappedCFException(g);
3856	>	public void testFailedStage() {
3857	>	CFException ex = new CFException();
3858	>	CompletionStage<Integer> f = CompletableFuture.failedStage(ex);
3859	>	AtomicInteger x = new AtomicInteger(0);
3860	>	AtomicReference<Throwable> r = new AtomicReference<>();
3861	>	f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3862	>	assertEquals(x.get(), 0);
3863	>	assertEquals(r.get(), ex);
3864		}
3865
3866		/**
3867	<	* thenAcceptAsync result completes exceptionally if source cancelled
3867	>	* completeAsync completes with value of given supplier
3868		*/
3869	<	public void testThenAcceptAsync4E() {
3869	>	public void testCompleteAsync() {
3870	>	for (Integer v1 : new Integer[] { 1, null })
3871	>	{
3872		CompletableFuture<Integer> f = new CompletableFuture<>();
3873	<	IncAction r = new IncAction();
3874	<	CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
3875	<	assertTrue(f.cancel(true));
3876	<	checkCompletedWithWrappedCancellationException(g);
2590	<	}
3873	>	f.completeAsync(() -> v1);
3874	>	f.join();
3875	>	checkCompletedNormally(f, v1);
3876	>	}}
3877
3878		/**
3879	<	* applyToEitherAsync result completes normally after normal
2594	<	* completion of sources
3879	>	* completeAsync completes exceptionally if given supplier throws
3880		*/
3881	<	public void testApplyToEitherAsyncE() {
3881	>	public void testCompleteAsync2() {
3882		CompletableFuture<Integer> f = new CompletableFuture<>();
3883	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3884	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
3885	<	f.complete(one);
3886	<	checkCompletedNormally(g, two);
3887	<
3888	<	f = new CompletableFuture<>();
3889	<	f.complete(one);
2605	<	f2 = new CompletableFuture<>();
2606	<	g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
2607	<	checkCompletedNormally(g, two);
3883	>	CFException ex = new CFException();
3884	>	f.completeAsync(() -> { throw ex; });
3885	>	try {
3886	>	f.join();
3887	>	shouldThrow();
3888	>	} catch (CompletionException success) {}
3889	>	checkCompletedWithWrappedException(f, ex);
3890		}
3891
3892		/**
3893	<	* applyToEitherAsync result completes exceptionally after exceptional
2612	<	* completion of source
3893	>	* completeAsync with given executor completes with value of given supplier
3894		*/
3895	<	public void testApplyToEitherAsync2E() {
3895	>	public void testCompleteAsync3() {
3896	>	for (Integer v1 : new Integer[] { 1, null })
3897	>	{
3898		CompletableFuture<Integer> f = new CompletableFuture<>();
3899	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3900	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
3901	<	f.completeExceptionally(new CFException());
3902	<	checkCompletedWithWrappedCFException(g);
3903	<
3904	<	f = new CompletableFuture<>();
2622	<	f2 = new CompletableFuture<>();
2623	<	f2.completeExceptionally(new CFException());
2624	<	g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
2625	<	f.complete(one);
2626	<	checkCompletedWithWrappedCFException(g);
2627	<	}
3899	>	ThreadExecutor executor = new ThreadExecutor();
3900	>	f.completeAsync(() -> v1, executor);
3901	>	assertSame(v1, f.join());
3902	>	checkCompletedNormally(f, v1);
3903	>	assertEquals(1, executor.count.get());
3904	>	}}
3905
3906		/**
3907	<	* applyToEitherAsync result completes exceptionally if action does
3907	>	* completeAsync with given executor completes exceptionally if
3908	>	* given supplier throws
3909		*/
3910	<	public void testApplyToEitherAsync3E() {
3910	>	public void testCompleteAsync4() {
3911		CompletableFuture<Integer> f = new CompletableFuture<>();
3912	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3913	<	FailingFunction r = new FailingFunction();
3914	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, r, new ThreadExecutor());
3915	<	f.complete(one);
3916	<	checkCompletedWithWrappedCFException(g);
3912	>	CFException ex = new CFException();
3913	>	ThreadExecutor executor = new ThreadExecutor();
3914	>	f.completeAsync(() -> { throw ex; }, executor);
3915	>	try {
3916	>	f.join();
3917	>	shouldThrow();
3918	>	} catch (CompletionException success) {}
3919	>	checkCompletedWithWrappedException(f, ex);
3920	>	assertEquals(1, executor.count.get());
3921		}
3922
3923		/**
3924	<	* applyToEitherAsync result completes exceptionally if either source cancelled
3924	>	* orTimeout completes with TimeoutException if not complete
3925		*/
3926	<	public void testApplyToEitherAsync4E() {
3926	>	public void testOrTimeout_timesOut() {
3927	>	long timeoutMillis = timeoutMillis();
3928		CompletableFuture<Integer> f = new CompletableFuture<>();
3929	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3930	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
3931	<	assertTrue(f.cancel(true));
3932	<	checkCompletedWithWrappedCancellationException(g);
2650	<
2651	<	f = new CompletableFuture<>();
2652	<	f2 = new CompletableFuture<>();
2653	<	assertTrue(f2.cancel(true));
2654	<	g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
2655	<	checkCompletedWithWrappedCancellationException(g);
3929	>	long startTime = System.nanoTime();
3930	>	assertSame(f, f.orTimeout(timeoutMillis, MILLISECONDS));
3931	>	checkCompletedWithTimeoutException(f);
3932	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3933		}
3934
3935		/**
3936	<	* acceptEitherAsync result completes normally after normal
2660	<	* completion of sources
3936	>	* orTimeout completes normally if completed before timeout
3937		*/
3938	<	public void testAcceptEitherAsyncE() {
3938	>	public void testOrTimeout_completed() {
3939	>	for (Integer v1 : new Integer[] { 1, null })
3940	>	{
3941		CompletableFuture<Integer> f = new CompletableFuture<>();
3942	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3943	<	IncAction r = new IncAction();
3944	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
3945	<	f.complete(one);
3946	<	checkCompletedNormally(g, null);
3947	<	assertEquals(r.value, 2);
3948	<
3949	<	r = new IncAction();
3950	<	f = new CompletableFuture<>();
3951	<	f.complete(one);
2674	<	f2 = new CompletableFuture<>();
2675	<	g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2676	<	checkCompletedNormally(g, null);
2677	<	assertEquals(r.value, 2);
2678	<	}
3942	>	CompletableFuture<Integer> g = new CompletableFuture<>();
3943	>	long startTime = System.nanoTime();
3944	>	f.complete(v1);
3945	>	assertSame(f, f.orTimeout(LONG_DELAY_MS, MILLISECONDS));
3946	>	assertSame(g, g.orTimeout(LONG_DELAY_MS, MILLISECONDS));
3947	>	g.complete(v1);
3948	>	checkCompletedNormally(f, v1);
3949	>	checkCompletedNormally(g, v1);
3950	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3951	>	}}
3952
3953		/**
3954	<	* acceptEitherAsync result completes exceptionally after exceptional
2682	<	* completion of source
3954	>	* completeOnTimeout completes with given value if not complete
3955		*/
3956	<	public void testAcceptEitherAsync2E() {
3957	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3958	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2687	<	IncAction r = new IncAction();
2688	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2689	<	f.completeExceptionally(new CFException());
2690	<	checkCompletedWithWrappedCFException(g);
2691	<
2692	<	r = new IncAction();
2693	<	f = new CompletableFuture<>();
2694	<	f2 = new CompletableFuture<>();
2695	<	f2.completeExceptionally(new CFException());
2696	<	g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2697	<	f.complete(one);
2698	<	checkCompletedWithWrappedCFException(g);
3956	>	public void testCompleteOnTimeout_timesOut() {
3957	>	testInParallel(() -> testCompleteOnTimeout_timesOut(42),
3958	>	() -> testCompleteOnTimeout_timesOut(null));
3959		}
3960
3961		/**
3962	<	* acceptEitherAsync result completes exceptionally if action does
3962	>	* completeOnTimeout completes with given value if not complete
3963		*/
3964	<	public void testAcceptEitherAsync3E() {
3964	>	public void testCompleteOnTimeout_timesOut(Integer v) {
3965	>	long timeoutMillis = timeoutMillis();
3966		CompletableFuture<Integer> f = new CompletableFuture<>();
3967	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3968	<	FailingConsumer r = new FailingConsumer();
3969	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
3970	<	f.complete(one);
3971	<	checkCompletedWithWrappedCFException(g);
3967	>	long startTime = System.nanoTime();
3968	>	assertSame(f, f.completeOnTimeout(v, timeoutMillis, MILLISECONDS));
3969	>	assertSame(v, f.join());
3970	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3971	>	f.complete(99);         // should have no effect
3972	>	checkCompletedNormally(f, v);
3973		}
3974
3975		/**
3976	<	* acceptEitherAsync result completes exceptionally if either
2715	<	* source cancelled
3976	>	* completeOnTimeout has no effect if completed within timeout
3977		*/
3978	<	public void testAcceptEitherAsync4E() {
3978	>	public void testCompleteOnTimeout_completed() {
3979	>	for (Integer v1 : new Integer[] { 1, null })
3980	>	{
3981		CompletableFuture<Integer> f = new CompletableFuture<>();
3982	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3983	<	IncAction r = new IncAction();
3984	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
3985	<	assertTrue(f.cancel(true));
3986	<	checkCompletedWithWrappedCancellationException(g);
3987	<
3988	<	r = new IncAction();
3989	<	f = new CompletableFuture<>();
3990	<	f2 = new CompletableFuture<>();
3991	<	assertTrue(f2.cancel(true));
2729	<	g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2730	<	checkCompletedWithWrappedCancellationException(g);
2731	<	}
3982	>	CompletableFuture<Integer> g = new CompletableFuture<>();
3983	>	long startTime = System.nanoTime();
3984	>	f.complete(v1);
3985	>	assertSame(f, f.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS));
3986	>	assertSame(g, g.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS));
3987	>	g.complete(v1);
3988	>	checkCompletedNormally(f, v1);
3989	>	checkCompletedNormally(g, v1);
3990	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3991	>	}}
3992
3993		/**
3994	<	* runAfterEitherAsync result completes normally after normal
2735	<	* completion of sources
3994	>	* delayedExecutor returns an executor that delays submission
3995		*/
3996	<	public void testRunAfterEitherAsyncE() {
3997	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3998	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3999	<	Noop r = new Noop();
4000	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
4001	<	f.complete(one);
4002	<	checkCompletedNormally(g, null);
4003	<	assertTrue(r.ran);
3996	>	public void testDelayedExecutor() {
3997	>	testInParallel(() -> testDelayedExecutor(null, null),
3998	>	() -> testDelayedExecutor(null, 1),
3999	>	() -> testDelayedExecutor(new ThreadExecutor(), 1),
4000	>	() -> testDelayedExecutor(new ThreadExecutor(), 1));
4001	>	}
4002	>
4003	>	public void testDelayedExecutor(Executor executor, Integer v) throws Exception {
4004	>	long timeoutMillis = timeoutMillis();
4005	>	// Use an "unreasonably long" long timeout to catch lingering threads
4006	>	long longTimeoutMillis = 1000 * 60 * 60 * 24;
4007	>	final Executor delayer, longDelayer;
4008	>	if (executor == null) {
4009	>	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS);
4010	>	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS);
4011	>	} else {
4012	>	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS, executor);
4013	>	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS, executor);
4014	>	}
4015	>	long startTime = System.nanoTime();
4016	>	CompletableFuture<Integer> f =
4017	>	CompletableFuture.supplyAsync(() -> v, delayer);
4018	>	CompletableFuture<Integer> g =
4019	>	CompletableFuture.supplyAsync(() -> v, longDelayer);
4020
4021	<	r = new Noop();
2747	<	f = new CompletableFuture<>();
2748	<	f.complete(one);
2749	<	f2 = new CompletableFuture<>();
2750	<	g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2751	<	checkCompletedNormally(g, null);
2752	<	assertTrue(r.ran);
2753	<	}
4021	>	assertNull(g.getNow(null));
4022
4023	<	/**
4024	<	* runAfterEitherAsync result completes exceptionally after exceptional
4025	<	* completion of source
4026	<	*/
2759	<	public void testRunAfterEitherAsync2E() {
2760	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2761	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2762	<	Noop r = new Noop();
2763	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2764	<	f.completeExceptionally(new CFException());
2765	<	checkCompletedWithWrappedCFException(g);
4023	>	assertSame(v, f.get(LONG_DELAY_MS, MILLISECONDS));
4024	>	long millisElapsed = millisElapsedSince(startTime);
4025	>	assertTrue(millisElapsed >= timeoutMillis);
4026	>	assertTrue(millisElapsed < LONG_DELAY_MS / 2);
4027
4028	<	r = new Noop();
2768	<	f = new CompletableFuture<>();
2769	<	f2 = new CompletableFuture<>();
2770	<	f2.completeExceptionally(new CFException());
2771	<	g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2772	<	f.complete(one);
2773	<	checkCompletedWithWrappedCFException(g);
2774	<	}
4028	>	checkCompletedNormally(f, v);
4029
4030	<	/**
4031	<	* runAfterEitherAsync result completes exceptionally if action does
2778	<	*/
2779	<	public void testRunAfterEitherAsync3E() {
2780	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2781	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2782	<	FailingNoop r = new FailingNoop();
2783	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2784	<	f.complete(one);
2785	<	checkCompletedWithWrappedCFException(g);
4030	>	checkIncomplete(g);
4031	>	assertTrue(g.cancel(true));
4032		}
4033
4034	<	/**
2789	<	* runAfterEitherAsync result completes exceptionally if either
2790	<	* source cancelled
2791	<	*/
2792	<	public void testRunAfterEitherAsync4E() {
2793	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2794	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2795	<	Noop r = new Noop();
2796	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2797	<	assertTrue(f.cancel(true));
2798	<	checkCompletedWithWrappedCancellationException(g);
4034	>	//--- tests of implementation details; not part of official tck ---
4035
4036	<	r = new Noop();
4037	<	f = new CompletableFuture<>();
4038	<	f2 = new CompletableFuture<>();
4039	<	assertTrue(f2.cancel(true));
4040	<	g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
4041	<	checkCompletedWithWrappedCancellationException(g);
4042	<	}
4036	>	Object resultOf(CompletableFuture<?> f) {
4037	>	SecurityManager sm = System.getSecurityManager();
4038	>	if (sm != null) {
4039	>	try {
4040	>	System.setSecurityManager(null);
4041	>	} catch (SecurityException giveUp) {
4042	>	return "Reflection not available";
4043	>	}
4044	>	}
4045
4046	<	/**
4047	<	* thenComposeAsync result completes normally after normal
4048	<	* completion of source
4049	<	*/
4050	<	public void testThenComposeAsyncE() {
4051	<	CompletableFuture<Integer> f = new CompletableFuture<>();
4052	<	CompletableFutureInc r = new CompletableFutureInc();
4053	<	CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
4054	<	f.complete(one);
4055	<	checkCompletedNormally(g, two);
4046	>	try {
4047	>	java.lang.reflect.Field resultField
4048	>	= CompletableFuture.class.getDeclaredField("result");
4049	>	resultField.setAccessible(true);
4050	>	return resultField.get(f);
4051	>	} catch (Throwable t) {
4052	>	throw new AssertionError(t);
4053	>	} finally {
4054	>	if (sm != null) System.setSecurityManager(sm);
4055	>	}
4056		}
4057
4058	<	/**
4059	<	* thenComposeAsync result completes exceptionally after
4060	<	* exceptional completion of source
4061	<	*/
4062	<	public void testThenComposeAsync2E() {
4063	<	CompletableFuture<Integer> f = new CompletableFuture<>();
4064	<	CompletableFutureInc r = new CompletableFutureInc();
2827	<	CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
2828	<	f.completeExceptionally(new CFException());
2829	<	checkCompletedWithWrappedCFException(g);
2830	<	}
4058	>	public void testExceptionPropagationReusesResultObject() {
4059	>	if (!testImplementationDetails) return;
4060	>	for (ExecutionMode m : ExecutionMode.values())
4061	>	{
4062	>	final CFException ex = new CFException();
4063	>	final CompletableFuture<Integer> v42 = CompletableFuture.completedFuture(42);
4064	>	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
4065
4066	<	/**
4067	<	* thenComposeAsync result completes exceptionally if action does
4068	<	*/
4069	<	public void testThenComposeAsync3E() {
4070	<	CompletableFuture<Integer> f = new CompletableFuture<>();
4071	<	FailingCompletableFutureFunction r = new FailingCompletableFutureFunction();
4072	<	CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
4073	<	f.complete(one);
4074	<	checkCompletedWithWrappedCFException(g);
4075	<	}
4066	>	final Runnable noopRunnable = new Noop(m);
4067	>	final Consumer<Integer> noopConsumer = new NoopConsumer(m);
4068	>	final Function<Integer, Integer> incFunction = new IncFunction(m);
4069	>
4070	>	List<Function<CompletableFuture<Integer>, CompletableFuture<?>>> funs
4071	>	= new ArrayList<>();
4072	>
4073	>	funs.add(y -> m.thenRun(y, noopRunnable));
4074	>	funs.add(y -> m.thenAccept(y, noopConsumer));
4075	>	funs.add(y -> m.thenApply(y, incFunction));
4076	>
4077	>	funs.add(y -> m.runAfterEither(y, incomplete, noopRunnable));
4078	>	funs.add(y -> m.acceptEither(y, incomplete, noopConsumer));
4079	>	funs.add(y -> m.applyToEither(y, incomplete, incFunction));
4080	>
4081	>	funs.add(y -> m.runAfterBoth(y, v42, noopRunnable));
4082	>	funs.add(y -> m.runAfterBoth(v42, y, noopRunnable));
4083	>	funs.add(y -> m.thenAcceptBoth(y, v42, new SubtractAction(m)));
4084	>	funs.add(y -> m.thenAcceptBoth(v42, y, new SubtractAction(m)));
4085	>	funs.add(y -> m.thenCombine(y, v42, new SubtractFunction(m)));
4086	>	funs.add(y -> m.thenCombine(v42, y, new SubtractFunction(m)));
4087	>
4088	>	funs.add(y -> m.whenComplete(y, (Integer r, Throwable t) -> {}));
4089	>
4090	>	funs.add(y -> m.thenCompose(y, new CompletableFutureInc(m)));
4091	>
4092	>	funs.add(y -> CompletableFuture.allOf(y));
4093	>	funs.add(y -> CompletableFuture.allOf(y, v42));
4094	>	funs.add(y -> CompletableFuture.allOf(v42, y));
4095	>	funs.add(y -> CompletableFuture.anyOf(y));
4096	>	funs.add(y -> CompletableFuture.anyOf(y, incomplete));
4097	>	funs.add(y -> CompletableFuture.anyOf(incomplete, y));
4098
4099	<	/**
4100	<	* thenComposeAsync result completes exceptionally if source cancelled
4101	<	*/
4102	<	public void testThenComposeAsync4E() {
4103	<	CompletableFuture<Integer> f = new CompletableFuture<>();
4104	<	CompletableFutureInc r = new CompletableFutureInc();
4105	<	CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
4106	<	assertTrue(f.cancel(true));
4107	<	checkCompletedWithWrappedCancellationException(g);
4108	<	}
4099	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
4100	>	fun : funs) {
4101	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4102	>	f.completeExceptionally(ex);
4103	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4104	>	checkCompletedWithWrappedException(src, ex);
4105	>	CompletableFuture<?> dep = fun.apply(src);
4106	>	checkCompletedWithWrappedException(dep, ex);
4107	>	assertSame(resultOf(src), resultOf(dep));
4108	>	}
4109
4110	<	// other static methods
4110	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
4111	>	fun : funs) {
4112	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4113	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4114	>	CompletableFuture<?> dep = fun.apply(src);
4115	>	f.completeExceptionally(ex);
4116	>	checkCompletedWithWrappedException(src, ex);
4117	>	checkCompletedWithWrappedException(dep, ex);
4118	>	assertSame(resultOf(src), resultOf(dep));
4119	>	}
4120
4121	<	/**
4122	<	* allOf(no component futures) returns a future completed normally
4123	<	* with the value null
4124	<	*/
4125	<	public void testAllOf_empty() throws Exception {
4126	<	CompletableFuture<Void> f = CompletableFuture.allOf();
4127	<	checkCompletedNormally(f, null);
4128	<	}
4121	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
4122	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
4123	>	fun : funs) {
4124	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4125	>	f.cancel(mayInterruptIfRunning);
4126	>	checkCancelled(f);
4127	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4128	>	checkCompletedWithWrappedCancellationException(src);
4129	>	CompletableFuture<?> dep = fun.apply(src);
4130	>	checkCompletedWithWrappedCancellationException(dep);
4131	>	assertSame(resultOf(src), resultOf(dep));
4132	>	}
4133
4134	<	/**
4135	<	* allOf returns a future completed normally with the value null
4136	<	* when all components complete normally
4137	<	*/
4138	<	public void testAllOf_normal() throws Exception {
4139	<	for (int k = 1; k < 20; ++k) {
4140	<	CompletableFuture<Integer>[] fs = (CompletableFuture<Integer>[]) new CompletableFuture[k];
4141	<	for (int i = 0; i < k; ++i)
4142	<	fs[i] = new CompletableFuture<>();
4143	<	CompletableFuture<Void> f = CompletableFuture.allOf(fs);
4144	<	for (int i = 0; i < k; ++i) {
4145	<	checkIncomplete(f);
4146	<	checkIncomplete(CompletableFuture.allOf(fs));
4147	<	fs[i].complete(one);
4134	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
4135	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
4136	>	fun : funs) {
4137	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4138	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4139	>	CompletableFuture<?> dep = fun.apply(src);
4140	>	f.cancel(mayInterruptIfRunning);
4141	>	checkCancelled(f);
4142	>	checkCompletedWithWrappedCancellationException(src);
4143	>	checkCompletedWithWrappedCancellationException(dep);
4144	>	assertSame(resultOf(src), resultOf(dep));
4145	>	}
4146	>	}}
4147	>
4148	>	/**
4149	>	* Minimal completion stages throw UOE for most non-CompletionStage methods
4150	>	*/
4151	>	public void testMinimalCompletionStage_minimality() {
4152	>	if (!testImplementationDetails) return;
4153	>	Function<Method, String> toSignature =
4154	>	method -> method.getName() + Arrays.toString(method.getParameterTypes());
4155	>	Predicate<Method> isNotStatic =
4156	>	method -> (method.getModifiers() & Modifier.STATIC) == 0;
4157	>	List<Method> minimalMethods =
4158	>	Stream.of(Object.class, CompletionStage.class)
4159	>	.flatMap(klazz -> Stream.of(klazz.getMethods()))
4160	>	.filter(isNotStatic)
4161	>	.collect(Collectors.toList());
4162	>	// Methods from CompletableFuture permitted NOT to throw UOE
4163	>	String[] signatureWhitelist = {
4164	>	"newIncompleteFuture[]",
4165	>	"defaultExecutor[]",
4166	>	"minimalCompletionStage[]",
4167	>	"copy[]",
4168	>	};
4169	>	Set<String> permittedMethodSignatures =
4170	>	Stream.concat(minimalMethods.stream().map(toSignature),
4171	>	Stream.of(signatureWhitelist))
4172	>	.collect(Collectors.toSet());
4173	>	List<Method> allMethods = Stream.of(CompletableFuture.class.getMethods())
4174	>	.filter(isNotStatic)
4175	>	.filter(method -> !permittedMethodSignatures.contains(toSignature.apply(method)))
4176	>	.collect(Collectors.toList());
4177	>
4178	>	List<CompletionStage<Integer>> stages = new ArrayList<>();
4179	>	CompletionStage<Integer> min =
4180	>	new CompletableFuture<Integer>().minimalCompletionStage();
4181	>	stages.add(min);
4182	>	stages.add(min.thenApply(x -> x));
4183	>	stages.add(CompletableFuture.completedStage(1));
4184	>	stages.add(CompletableFuture.failedStage(new CFException()));
4185	>
4186	>	List<Method> bugs = new ArrayList<>();
4187	>	for (Method method : allMethods) {
4188	>	Class<?>[] parameterTypes = method.getParameterTypes();
4189	>	Object[] args = new Object[parameterTypes.length];
4190	>	// Manufacture boxed primitives for primitive params
4191	>	for (int i = 0; i < args.length; i++) {
4192	>	Class<?> type = parameterTypes[i];
4193	>	if      (type == boolean.class) args[i] = false;
4194	>	else if (type == int.class)     args[i] = 0;
4195	>	else if (type == long.class)    args[i] = 0L;
4196	>	}
4197	>	for (CompletionStage<Integer> stage : stages) {
4198	>	try {
4199	>	method.invoke(stage, args);
4200	>	bugs.add(method);
4201	>	}
4202	>	catch (java.lang.reflect.InvocationTargetException expected) {
4203	>	if (! (expected.getCause() instanceof UnsupportedOperationException)) {
4204	>	bugs.add(method);
4205	>	// expected.getCause().printStackTrace();
4206	>	}
4207	>	}
4208	>	catch (ReflectiveOperationException bad) { throw new Error(bad); }
4209		}
2880	–	checkCompletedNormally(f, null);
2881	–	checkCompletedNormally(CompletableFuture.allOf(fs), null);
4210		}
4211	+	if (!bugs.isEmpty())
4212	+	throw new Error("Methods did not throw UOE: " + bugs);
4213		}
4214
4215		/**
4216	<	* anyOf(no component futures) returns an incomplete future
4217	<	*/
2888	<	public void testAnyOf_empty() throws Exception {
2889	<	CompletableFuture<Object> f = CompletableFuture.anyOf();
2890	<	checkIncomplete(f);
2891	<	}
2892	<
2893	<	/**
2894	<	* anyOf returns a future completed normally with a value when
2895	<	* a component future does
4216	>	* minimalStage.toCompletableFuture() returns a CompletableFuture that
4217	>	* is completed normally, with the same value, when source is.
4218		*/
4219	<	public void testAnyOf_normal() throws Exception {
4220	<	for (int k = 0; k < 10; ++k) {
4221	<	CompletableFuture[] fs = new CompletableFuture[k];
4222	<	for (int i = 0; i < k; ++i)
4223	<	fs[i] = new CompletableFuture<>();
4224	<	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
4219	>	public void testMinimalCompletionStage_toCompletableFuture_normalCompletion() {
4220	>	for (boolean createIncomplete : new boolean[] { true, false })
4221	>	for (Integer v1 : new Integer[] { 1, null })
4222	>	{
4223	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4224	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4225	>	if (!createIncomplete) assertTrue(f.complete(v1));
4226	>	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4227	>	if (createIncomplete) {
4228		checkIncomplete(f);
4229	<	for (int i = 0; i < k; ++i) {
4230	<	fs[i].complete(one);
2906	<	checkCompletedNormally(f, one);
2907	<	checkCompletedNormally(CompletableFuture.anyOf(fs), one);
2908	<	}
4229	>	checkIncomplete(g);
4230	>	assertTrue(f.complete(v1));
4231		}
4232	<	}
4232	>	checkCompletedNormally(f, v1);
4233	>	checkCompletedNormally(g, v1);
4234	>	}}
4235
4236		/**
4237	<	* anyOf result completes exceptionally when any component does.
4237	>	* minimalStage.toCompletableFuture() returns a CompletableFuture that
4238	>	* is completed exceptionally when source is.
4239		*/
4240	<	public void testAnyOf_exceptional() throws Exception {
4241	<	for (int k = 0; k < 10; ++k) {
4242	<	CompletableFuture[] fs = new CompletableFuture[k];
4243	<	for (int i = 0; i < k; ++i)
4244	<	fs[i] = new CompletableFuture<>();
4245	<	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
4240	>	public void testMinimalCompletionStage_toCompletableFuture_exceptionalCompletion() {
4241	>	for (boolean createIncomplete : new boolean[] { true, false })
4242	>	{
4243	>	CFException ex = new CFException();
4244	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4245	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4246	>	if (!createIncomplete) f.completeExceptionally(ex);
4247	>	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4248	>	if (createIncomplete) {
4249		checkIncomplete(f);
4250	<	for (int i = 0; i < k; ++i) {
4251	<	fs[i].completeExceptionally(new CFException());
2924	<	checkCompletedWithWrappedCFException(f);
2925	<	checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
2926	<	}
4250	>	checkIncomplete(g);
4251	>	f.completeExceptionally(ex);
4252		}
4253	<	}
4253	>	checkCompletedExceptionally(f, ex);
4254	>	checkCompletedWithWrappedException(g, ex);
4255	>	}}
4256
4257		/**
4258	<	* Completion methods throw NullPointerException with null arguments
4258	>	* minimalStage.toCompletableFuture() gives mutable CompletableFuture
4259		*/
4260	<	public void testNPE() {
4260	>	public void testMinimalCompletionStage_toCompletableFuture_mutable() {
4261	>	for (Integer v1 : new Integer[] { 1, null })
4262	>	{
4263		CompletableFuture<Integer> f = new CompletableFuture<>();
4264	<	CompletableFuture<Integer> g = new CompletableFuture<>();
4265	<	CompletableFuture<Integer> nullFuture = (CompletableFuture<Integer>)null;
4266	<	CompletableFuture<?> h;
4267	<	ThreadExecutor exec = new ThreadExecutor();
4268	<
4269	<	Runnable[] throwingActions = {
4270	<	() -> CompletableFuture.supplyAsync(null),
2942	<	() -> CompletableFuture.supplyAsync(null, exec),
2943	<	() -> CompletableFuture.supplyAsync(supplyOne, null),
2944	<
2945	<	() -> CompletableFuture.runAsync(null),
2946	<	() -> CompletableFuture.runAsync(null, exec),
2947	<	() -> CompletableFuture.runAsync(() -> {}, null),
2948	<
2949	<	() -> f.completeExceptionally(null),
2950	<
2951	<	() -> f.thenApply(null),
2952	<	() -> f.thenApplyAsync(null),
2953	<	() -> f.thenApplyAsync((x) -> x, null),
2954	<	() -> f.thenApplyAsync(null, exec),
2955	<
2956	<	() -> f.thenAccept(null),
2957	<	() -> f.thenAcceptAsync(null),
2958	<	() -> f.thenAcceptAsync((x) -> {} , null),
2959	<	() -> f.thenAcceptAsync(null, exec),
2960	<
2961	<	() -> f.thenRun(null),
2962	<	() -> f.thenRunAsync(null),
2963	<	() -> f.thenRunAsync(() -> {} , null),
2964	<	() -> f.thenRunAsync(null, exec),
2965	<
2966	<	() -> f.thenCombine(g, null),
2967	<	() -> f.thenCombineAsync(g, null),
2968	<	() -> f.thenCombineAsync(g, null, exec),
2969	<	() -> f.thenCombine(nullFuture, (x, y) -> x),
2970	<	() -> f.thenCombineAsync(nullFuture, (x, y) -> x),
2971	<	() -> f.thenCombineAsync(nullFuture, (x, y) -> x, exec),
2972	<	() -> f.thenCombineAsync(g, (x, y) -> x, null),
2973	<
2974	<	() -> f.thenAcceptBoth(g, null),
2975	<	() -> f.thenAcceptBothAsync(g, null),
2976	<	() -> f.thenAcceptBothAsync(g, null, exec),
2977	<	() -> f.thenAcceptBoth(nullFuture, (x, y) -> {}),
2978	<	() -> f.thenAcceptBothAsync(nullFuture, (x, y) -> {}),
2979	<	() -> f.thenAcceptBothAsync(nullFuture, (x, y) -> {}, exec),
2980	<	() -> f.thenAcceptBothAsync(g, (x, y) -> {}, null),
2981	<
2982	<	() -> f.runAfterBoth(g, null),
2983	<	() -> f.runAfterBothAsync(g, null),
2984	<	() -> f.runAfterBothAsync(g, null, exec),
2985	<	() -> f.runAfterBoth(nullFuture, () -> {}),
2986	<	() -> f.runAfterBothAsync(nullFuture, () -> {}),
2987	<	() -> f.runAfterBothAsync(nullFuture, () -> {}, exec),
2988	<	() -> f.runAfterBothAsync(g, () -> {}, null),
2989	<
2990	<	() -> f.applyToEither(g, null),
2991	<	() -> f.applyToEitherAsync(g, null),
2992	<	() -> f.applyToEitherAsync(g, null, exec),
2993	<	() -> f.applyToEither(nullFuture, (x) -> x),
2994	<	() -> f.applyToEitherAsync(nullFuture, (x) -> x),
2995	<	() -> f.applyToEitherAsync(nullFuture, (x) -> x, exec),
2996	<	() -> f.applyToEitherAsync(g, (x) -> x, null),
2997	<
2998	<	() -> f.acceptEither(g, null),
2999	<	() -> f.acceptEitherAsync(g, null),
3000	<	() -> f.acceptEitherAsync(g, null, exec),
3001	<	() -> f.acceptEither(nullFuture, (x) -> {}),
3002	<	() -> f.acceptEitherAsync(nullFuture, (x) -> {}),
3003	<	() -> f.acceptEitherAsync(nullFuture, (x) -> {}, exec),
3004	<	() -> f.acceptEitherAsync(g, (x) -> {}, null),
3005	<
3006	<	() -> f.runAfterEither(g, null),
3007	<	() -> f.runAfterEitherAsync(g, null),
3008	<	() -> f.runAfterEitherAsync(g, null, exec),
3009	<	() -> f.runAfterEither(nullFuture, () -> {}),
3010	<	() -> f.runAfterEitherAsync(nullFuture, () -> {}),
3011	<	() -> f.runAfterEitherAsync(nullFuture, () -> {}, exec),
3012	<	() -> f.runAfterEitherAsync(g, () -> {}, null),
3013	<
3014	<	() -> f.thenCompose(null),
3015	<	() -> f.thenComposeAsync(null),
3016	<	() -> f.thenComposeAsync(new CompletableFutureInc(), null),
3017	<	() -> f.thenComposeAsync(null, exec),
3018	<
3019	<	() -> f.exceptionally(null),
3020	<
3021	<	() -> f.handle(null),
3022	<
3023	<	() -> CompletableFuture.allOf((CompletableFuture<?>)null),
3024	<	() -> CompletableFuture.allOf((CompletableFuture<?>[])null),
3025	<	() -> CompletableFuture.allOf(f, null),
3026	<	() -> CompletableFuture.allOf(null, f),
3027	<
3028	<	() -> CompletableFuture.anyOf((CompletableFuture<?>)null),
3029	<	() -> CompletableFuture.anyOf((CompletableFuture<?>[])null),
3030	<	() -> CompletableFuture.anyOf(f, null),
3031	<	() -> CompletableFuture.anyOf(null, f),
3032	<
3033	<	() -> f.obtrudeException(null),
3034	<	};
3035	<
3036	<	assertThrows(NullPointerException.class, throwingActions);
3037	<	assertEquals(0, exec.count.get());
3038	<	}
4264	>	CompletionStage minimal = f.minimalCompletionStage();
4265	>	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4266	>	assertTrue(g.complete(v1));
4267	>	checkCompletedNormally(g, v1);
4268	>	checkIncomplete(f);
4269	>	checkIncomplete(minimal.toCompletableFuture());
4270	>	}}
4271
4272		/**
4273	<	* toCompletableFuture returns this CompletableFuture.
4273	>	* minimalStage.toCompletableFuture().join() awaits completion
4274		*/
4275	<	public void testToCompletableFuture() {
4275	>	public void testMinimalCompletionStage_toCompletableFuture_join() throws Exception {
4276	>	for (boolean createIncomplete : new boolean[] { true, false })
4277	>	for (Integer v1 : new Integer[] { 1, null })
4278	>	{
4279		CompletableFuture<Integer> f = new CompletableFuture<>();
4280	<	assertSame(f, f.toCompletableFuture());
4280	>	if (!createIncomplete) assertTrue(f.complete(v1));
4281	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4282	>	if (createIncomplete) assertTrue(f.complete(v1));
4283	>	assertEquals(v1, minimal.toCompletableFuture().join());
4284	>	assertEquals(v1, minimal.toCompletableFuture().get());
4285	>	checkCompletedNormally(minimal.toCompletableFuture(), v1);
4286	>	}}
4287	>
4288	>	/**
4289	>	* Completion of a toCompletableFuture copy of a minimal stage
4290	>	* does not complete its source.
4291	>	*/
4292	>	public void testMinimalCompletionStage_toCompletableFuture_oneWayPropagation() {
4293	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4294	>	CompletionStage<Integer> g = f.minimalCompletionStage();
4295	>	assertTrue(g.toCompletableFuture().complete(1));
4296	>	assertTrue(g.toCompletableFuture().complete(null));
4297	>	assertTrue(g.toCompletableFuture().cancel(true));
4298	>	assertTrue(g.toCompletableFuture().cancel(false));
4299	>	assertTrue(g.toCompletableFuture().completeExceptionally(new CFException()));
4300	>	checkIncomplete(g.toCompletableFuture());
4301	>	f.complete(1);
4302	>	checkCompletedNormally(g.toCompletableFuture(), 1);
4303		}
4304
4305	<	/**
4306	<	* whenComplete action executes on normal completion, propagating
4307	<	* source result.
4308	<	*/
4309	<	public void testWhenComplete1() {
4310	<	final AtomicInteger a = new AtomicInteger();
4311	<	CompletableFuture<Integer> f = new CompletableFuture<>();
4312	<	CompletableFuture<Integer> g =
4313	<	f.whenComplete((Integer x, Throwable t) -> a.getAndIncrement());
3057	<	f.complete(three);
3058	<	checkCompletedNormally(f, three);
3059	<	checkCompletedNormally(g, three);
3060	<	assertEquals(a.get(), 1);
4305	>	/** Demo utility method for external reliable toCompletableFuture */
4306	>	static <T> CompletableFuture<T> toCompletableFuture(CompletionStage<T> stage) {
4307	>	CompletableFuture<T> f = new CompletableFuture<>();
4308	>	stage.handle((T t, Throwable ex) -> {
4309	>	if (ex != null) f.completeExceptionally(ex);
4310	>	else f.complete(t);
4311	>	return null;
4312	>	});
4313	>	return f;
4314		}
4315
4316	<	/**
4317	<	* whenComplete action executes on exceptional completion, propagating
4318	<	* source result.
3066	<	*/
3067	<	public void testWhenComplete2() {
3068	<	final AtomicInteger a = new AtomicInteger();
3069	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3070	<	CompletableFuture<Integer> g =
3071	<	f.whenComplete((Integer x, Throwable t) -> a.getAndIncrement());
3072	<	f.completeExceptionally(new CFException());
3073	<	assertTrue(f.isCompletedExceptionally());
3074	<	assertTrue(g.isCompletedExceptionally());
3075	<	assertEquals(a.get(), 1);
4316	>	/** Demo utility method to join a CompletionStage */
4317	>	static <T> T join(CompletionStage<T> stage) {
4318	>	return toCompletableFuture(stage).join();
4319		}
4320
4321		/**
4322	<	* If a whenComplete action throws an exception when triggered by
3080	<	* a normal completion, it completes exceptionally
4322	>	* Joining a minimal stage "by hand" works
4323		*/
4324	<	public void testWhenComplete3() {
4324	>	public void testMinimalCompletionStage_join_by_hand() {
4325	>	for (boolean createIncomplete : new boolean[] { true, false })
4326	>	for (Integer v1 : new Integer[] { 1, null })
4327	>	{
4328		CompletableFuture<Integer> f = new CompletableFuture<>();
4329	<	CompletableFuture<Integer> g =
4330	<	f.whenComplete((Integer x, Throwable t) ->
4331	<	{ throw new CFException(); } );
4332	<	f.complete(three);
4333	<	checkCompletedNormally(f, three);
4334	<	assertTrue(g.isCompletedExceptionally());
4335	<	checkCompletedWithWrappedCFException(g);
4329	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4330	>	CompletableFuture<Integer> g = new CompletableFuture<>();
4331	>	if (!createIncomplete) assertTrue(f.complete(v1));
4332	>	minimal.thenAccept(x -> g.complete(x));
4333	>	if (createIncomplete) assertTrue(f.complete(v1));
4334	>	g.join();
4335	>	checkCompletedNormally(g, v1);
4336	>	checkCompletedNormally(f, v1);
4337	>	assertEquals(v1, join(minimal));
4338	>	}}
4339	>
4340	>	static class Monad {
4341	>	static class ZeroException extends RuntimeException {
4342	>	public ZeroException() { super("monadic zero"); }
4343	>	}
4344	>	// "return", "unit"
4345	>	static <T> CompletableFuture<T> unit(T value) {
4346	>	return completedFuture(value);
4347	>	}
4348	>	// monadic zero ?
4349	>	static <T> CompletableFuture<T> zero() {
4350	>	return failedFuture(new ZeroException());
4351	>	}
4352	>	// >=>
4353	>	static <T,U,V> Function<T, CompletableFuture<V>> compose
4354	>	(Function<T, CompletableFuture<U>> f,
4355	>	Function<U, CompletableFuture<V>> g) {
4356	>	return x -> f.apply(x).thenCompose(g);
4357	>	}
4358	>
4359	>	static void assertZero(CompletableFuture<?> f) {
4360	>	try {
4361	>	f.getNow(null);
4362	>	throw new AssertionError("should throw");
4363	>	} catch (CompletionException success) {
4364	>	assertTrue(success.getCause() instanceof ZeroException);
4365	>	}
4366	>	}
4367	>
4368	>	static <T> void assertFutureEquals(CompletableFuture<T> f,
4369	>	CompletableFuture<T> g) {
4370	>	T fval = null, gval = null;
4371	>	Throwable fex = null, gex = null;
4372	>
4373	>	try { fval = f.get(); }
4374	>	catch (ExecutionException ex) { fex = ex.getCause(); }
4375	>	catch (Throwable ex) { fex = ex; }
4376	>
4377	>	try { gval = g.get(); }
4378	>	catch (ExecutionException ex) { gex = ex.getCause(); }
4379	>	catch (Throwable ex) { gex = ex; }
4380	>
4381	>	if (fex != null || gex != null)
4382	>	assertSame(fex.getClass(), gex.getClass());
4383	>	else
4384	>	assertEquals(fval, gval);
4385	>	}
4386	>
4387	>	static class PlusFuture<T> extends CompletableFuture<T> {
4388	>	AtomicReference<Throwable> firstFailure = new AtomicReference<>(null);
4389	>	}
4390	>
4391	>	/** Implements "monadic plus". */
4392	>	static <T> CompletableFuture<T> plus(CompletableFuture<? extends T> f,
4393	>	CompletableFuture<? extends T> g) {
4394	>	PlusFuture<T> plus = new PlusFuture<T>();
4395	>	BiConsumer<T, Throwable> action = (T result, Throwable ex) -> {
4396	>	try {
4397	>	if (ex == null) {
4398	>	if (plus.complete(result))
4399	>	if (plus.firstFailure.get() != null)
4400	>	plus.firstFailure.set(null);
4401	>	}
4402	>	else if (plus.firstFailure.compareAndSet(null, ex)) {
4403	>	if (plus.isDone())
4404	>	plus.firstFailure.set(null);
4405	>	}
4406	>	else {
4407	>	// first failure has precedence
4408	>	Throwable first = plus.firstFailure.getAndSet(null);
4409	>
4410	>	// may fail with "Self-suppression not permitted"
4411	>	try { first.addSuppressed(ex); }
4412	>	catch (Exception ignored) {}
4413	>
4414	>	plus.completeExceptionally(first);
4415	>	}
4416	>	} catch (Throwable unexpected) {
4417	>	plus.completeExceptionally(unexpected);
4418	>	}
4419	>	};
4420	>	f.whenComplete(action);
4421	>	g.whenComplete(action);
4422	>	return plus;
4423	>	}
4424	>	}
4425	>
4426	>	/**
4427	>	* CompletableFuture is an additive monad - sort of.
4428	>	* https://en.wikipedia.org/wiki/Monad_(functional_programming)#Additive_monads
4429	>	*/
4430	>	public void testAdditiveMonad() throws Throwable {
4431	>	Function<Long, CompletableFuture<Long>> unit = Monad::unit;
4432	>	CompletableFuture<Long> zero = Monad.zero();
4433	>
4434	>	// Some mutually non-commutative functions
4435	>	Function<Long, CompletableFuture<Long>> triple
4436	>	= x -> Monad.unit(3 * x);
4437	>	Function<Long, CompletableFuture<Long>> inc
4438	>	= x -> Monad.unit(x + 1);
4439	>
4440	>	// unit is a right identity: m >>= unit === m
4441	>	Monad.assertFutureEquals(inc.apply(5L).thenCompose(unit),
4442	>	inc.apply(5L));
4443	>	// unit is a left identity: (unit x) >>= f === f x
4444	>	Monad.assertFutureEquals(unit.apply(5L).thenCompose(inc),
4445	>	inc.apply(5L));
4446	>
4447	>	// associativity: (m >>= f) >>= g === m >>= ( \x -> (f x >>= g) )
4448	>	Monad.assertFutureEquals(
4449	>	unit.apply(5L).thenCompose(inc).thenCompose(triple),
4450	>	unit.apply(5L).thenCompose(x -> inc.apply(x).thenCompose(triple)));
4451	>
4452	>	// The case for CompletableFuture as an additive monad is weaker...
4453	>
4454	>	// zero is a monadic zero
4455	>	Monad.assertZero(zero);
4456	>
4457	>	// left zero: zero >>= f === zero
4458	>	Monad.assertZero(zero.thenCompose(inc));
4459	>	// right zero: f >>= (\x -> zero) === zero
4460	>	Monad.assertZero(inc.apply(5L).thenCompose(x -> zero));
4461	>
4462	>	// f plus zero === f
4463	>	Monad.assertFutureEquals(Monad.unit(5L),
4464	>	Monad.plus(Monad.unit(5L), zero));
4465	>	// zero plus f === f
4466	>	Monad.assertFutureEquals(Monad.unit(5L),
4467	>	Monad.plus(zero, Monad.unit(5L)));
4468	>	// zero plus zero === zero
4469	>	Monad.assertZero(Monad.plus(zero, zero));
4470	>	{
4471	>	CompletableFuture<Long> f = Monad.plus(Monad.unit(5L),
4472	>	Monad.unit(8L));
4473	>	// non-determinism
4474	>	assertTrue(f.get() == 5L || f.get() == 8L);
4475	>	}
4476	>
4477	>	CompletableFuture<Long> godot = new CompletableFuture<>();
4478	>	// f plus godot === f (doesn't wait for godot)
4479	>	Monad.assertFutureEquals(Monad.unit(5L),
4480	>	Monad.plus(Monad.unit(5L), godot));
4481	>	// godot plus f === f (doesn't wait for godot)
4482	>	Monad.assertFutureEquals(Monad.unit(5L),
4483	>	Monad.plus(godot, Monad.unit(5L)));
4484	>	}
4485	>
4486	>	/** Test long recursive chains of CompletableFutures with cascading completions */
4487	>	@SuppressWarnings("FutureReturnValueIgnored")
4488	>	public void testRecursiveChains() throws Throwable {
4489	>	for (ExecutionMode m : ExecutionMode.values())
4490	>	for (boolean addDeadEnds : new boolean[] { true, false })
4491	>	{
4492	>	final int val = 42;
4493	>	final int n = expensiveTests ? 1_000 : 2;
4494	>	CompletableFuture<Integer> head = new CompletableFuture<>();
4495	>	CompletableFuture<Integer> tail = head;
4496	>	for (int i = 0; i < n; i++) {
4497	>	if (addDeadEnds) m.thenApply(tail, v -> v + 1);
4498	>	tail = m.thenApply(tail, v -> v + 1);
4499	>	if (addDeadEnds) m.applyToEither(tail, tail, v -> v + 1);
4500	>	tail = m.applyToEither(tail, tail, v -> v + 1);
4501	>	if (addDeadEnds) m.thenCombine(tail, tail, (v, w) -> v + 1);
4502	>	tail = m.thenCombine(tail, tail, (v, w) -> v + 1);
4503	>	}
4504	>	head.complete(val);
4505	>	assertEquals(val + 3 * n, (int) tail.join());
4506	>	}}
4507	>
4508	>	/**
4509	>	* A single CompletableFuture with many dependents.
4510	>	* A demo of scalability - runtime is O(n).
4511	>	*/
4512	>	@SuppressWarnings("FutureReturnValueIgnored")
4513	>	public void testManyDependents() throws Throwable {
4514	>	final int n = expensiveTests ? 1_000_000 : 10;
4515	>	final CompletableFuture<Void> head = new CompletableFuture<>();
4516	>	final CompletableFuture<Void> complete = CompletableFuture.completedFuture((Void)null);
4517	>	final AtomicInteger count = new AtomicInteger(0);
4518	>	for (int i = 0; i < n; i++) {
4519	>	head.thenRun(() -> count.getAndIncrement());
4520	>	head.thenAccept(x -> count.getAndIncrement());
4521	>	head.thenApply(x -> count.getAndIncrement());
4522	>
4523	>	head.runAfterBoth(complete, () -> count.getAndIncrement());
4524	>	head.thenAcceptBoth(complete, (x, y) -> count.getAndIncrement());
4525	>	head.thenCombine(complete, (x, y) -> count.getAndIncrement());
4526	>	complete.runAfterBoth(head, () -> count.getAndIncrement());
4527	>	complete.thenAcceptBoth(head, (x, y) -> count.getAndIncrement());
4528	>	complete.thenCombine(head, (x, y) -> count.getAndIncrement());
4529	>
4530	>	head.runAfterEither(new CompletableFuture<Void>(), () -> count.getAndIncrement());
4531	>	head.acceptEither(new CompletableFuture<Void>(), x -> count.getAndIncrement());
4532	>	head.applyToEither(new CompletableFuture<Void>(), x -> count.getAndIncrement());
4533	>	new CompletableFuture<Void>().runAfterEither(head, () -> count.getAndIncrement());
4534	>	new CompletableFuture<Void>().acceptEither(head, x -> count.getAndIncrement());
4535	>	new CompletableFuture<Void>().applyToEither(head, x -> count.getAndIncrement());
4536	>	}
4537	>	head.complete(null);
4538	>	assertEquals(5 * 3 * n, count.get());
4539	>	}
4540	>
4541	>	/** ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest tck */
4542	>	@SuppressWarnings("FutureReturnValueIgnored")
4543	>	public void testCoCompletionGarbageRetention() throws Throwable {
4544	>	final int n = expensiveTests ? 1_000_000 : 10;
4545	>	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
4546	>	CompletableFuture<Integer> f;
4547	>	for (int i = 0; i < n; i++) {
4548	>	f = new CompletableFuture<>();
4549	>	f.runAfterEither(incomplete, () -> {});
4550	>	f.complete(null);
4551	>
4552	>	f = new CompletableFuture<>();
4553	>	f.acceptEither(incomplete, x -> {});
4554	>	f.complete(null);
4555	>
4556	>	f = new CompletableFuture<>();
4557	>	f.applyToEither(incomplete, x -> x);
4558	>	f.complete(null);
4559	>
4560	>	f = new CompletableFuture<>();
4561	>	CompletableFuture.anyOf(f, incomplete);
4562	>	f.complete(null);
4563	>	}
4564	>
4565	>	for (int i = 0; i < n; i++) {
4566	>	f = new CompletableFuture<>();
4567	>	incomplete.runAfterEither(f, () -> {});
4568	>	f.complete(null);
4569	>
4570	>	f = new CompletableFuture<>();
4571	>	incomplete.acceptEither(f, x -> {});
4572	>	f.complete(null);
4573	>
4574	>	f = new CompletableFuture<>();
4575	>	incomplete.applyToEither(f, x -> x);
4576	>	f.complete(null);
4577	>
4578	>	f = new CompletableFuture<>();
4579	>	CompletableFuture.anyOf(incomplete, f);
4580	>	f.complete(null);
4581	>	}
4582	>	}
4583	>
4584	>	/**
4585	>	* Reproduction recipe for:
4586	>	* 8160402: Garbage retention with CompletableFuture.anyOf
4587	>	* 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
4588	>	*/
4589	>	public void testAnyOfGarbageRetention() throws Throwable {
4590	>	for (Integer v : new Integer[] { 1, null })
4591	>	{
4592	>	final int n = expensiveTests ? 100_000 : 10;
4593	>	CompletableFuture<Integer>[] fs
4594	>	= (CompletableFuture<Integer>[]) new CompletableFuture<?>[100];
4595	>	for (int i = 0; i < fs.length; i++)
4596	>	fs[i] = new CompletableFuture<>();
4597	>	fs[fs.length - 1].complete(v);
4598	>	for (int i = 0; i < n; i++)
4599	>	checkCompletedNormally(CompletableFuture.anyOf(fs), v);
4600	>	}}
4601	>
4602	>	/**
4603	>	* Checks for garbage retention with allOf.
4604	>	*
4605	>	* As of 2016-07, fails with OOME:
4606	>	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledAllOfGarbageRetention tck
4607	>	*/
4608	>	public void testCancelledAllOfGarbageRetention() throws Throwable {
4609	>	final int n = expensiveTests ? 100_000 : 10;
4610	>	CompletableFuture<Integer>[] fs
4611	>	= (CompletableFuture<Integer>[]) new CompletableFuture<?>[100];
4612	>	for (int i = 0; i < fs.length; i++)
4613	>	fs[i] = new CompletableFuture<>();
4614	>	for (int i = 0; i < n; i++)
4615	>	assertTrue(CompletableFuture.allOf(fs).cancel(false));
4616	>	}
4617	>
4618	>	/**
4619	>	* Checks for garbage retention when a dependent future is
4620	>	* cancelled and garbage-collected.
4621	>	* 8161600: Garbage retention when source CompletableFutures are never completed
4622	>	*
4623	>	* As of 2016-07, fails with OOME:
4624	>	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledGarbageRetention tck
4625	>	*/
4626	>	public void testCancelledGarbageRetention() throws Throwable {
4627	>	final int n = expensiveTests ? 100_000 : 10;
4628	>	CompletableFuture<Integer> neverCompleted = new CompletableFuture<>();
4629	>	for (int i = 0; i < n; i++)
4630	>	assertTrue(neverCompleted.thenRun(() -> {}).cancel(true));
4631	>	}
4632	>
4633	>	/**
4634	>	* Checks for garbage retention when MinimalStage.toCompletableFuture()
4635	>	* is invoked many times.
4636	>	* 8161600: Garbage retention when source CompletableFutures are never completed
4637	>	*
4638	>	* As of 2016-07, fails with OOME:
4639	>	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testToCompletableFutureGarbageRetention tck
4640	>	*/
4641	>	public void testToCompletableFutureGarbageRetention() throws Throwable {
4642	>	final int n = expensiveTests ? 900_000 : 10;
4643	>	CompletableFuture<Integer> neverCompleted = new CompletableFuture<>();
4644	>	CompletionStage minimal = neverCompleted.minimalCompletionStage();
4645	>	for (int i = 0; i < n; i++)
4646	>	assertTrue(minimal.toCompletableFuture().cancel(true));
4647	>	}
4648	>
4649	>	//     static <U> U join(CompletionStage<U> stage) {
4650	>	//         CompletableFuture<U> f = new CompletableFuture<>();
4651	>	//         stage.whenComplete((v, ex) -> {
4652	>	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
4653	>	//         });
4654	>	//         return f.join();
4655	>	//     }
4656	>
4657	>	//     static <U> boolean isDone(CompletionStage<U> stage) {
4658	>	//         CompletableFuture<U> f = new CompletableFuture<>();
4659	>	//         stage.whenComplete((v, ex) -> {
4660	>	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
4661	>	//         });
4662	>	//         return f.isDone();
4663	>	//     }
4664	>
4665	>	//     static <U> U join2(CompletionStage<U> stage) {
4666	>	//         return stage.toCompletableFuture().copy().join();
4667	>	//     }
4668	>
4669	>	//     static <U> boolean isDone2(CompletionStage<U> stage) {
4670	>	//         return stage.toCompletableFuture().copy().isDone();
4671	>	//     }
4672	>
4673	>	// For testing default implementations
4674	>	// Only non-default interface methods defined.
4675	>	static final class DelegatedCompletionStage<T> implements CompletionStage<T> {
4676	>	final CompletableFuture<T> cf;
4677	>	DelegatedCompletionStage(CompletableFuture<T> cf) { this.cf = cf; }
4678	>	public CompletableFuture<T> toCompletableFuture() {
4679	>	return cf; }
4680	>	public CompletionStage<Void> thenRun
4681	>	(Runnable action) {
4682	>	return cf.thenRun(action); }
4683	>	public CompletionStage<Void> thenRunAsync
4684	>	(Runnable action) {
4685	>	return cf.thenRunAsync(action); }
4686	>	public CompletionStage<Void> thenRunAsync
4687	>	(Runnable action,
4688	>	Executor executor) {
4689	>	return cf.thenRunAsync(action, executor); }
4690	>	public CompletionStage<Void> thenAccept
4691	>	(Consumer<? super T> action) {
4692	>	return cf.thenAccept(action); }
4693	>	public CompletionStage<Void> thenAcceptAsync
4694	>	(Consumer<? super T> action) {
4695	>	return cf.thenAcceptAsync(action); }
4696	>	public CompletionStage<Void> thenAcceptAsync
4697	>	(Consumer<? super T> action,
4698	>	Executor executor) {
4699	>	return cf.thenAcceptAsync(action, executor); }
4700	>	public <U> CompletionStage<U> thenApply
4701	>	(Function<? super T,? extends U> a) {
4702	>	return cf.thenApply(a); }
4703	>	public <U> CompletionStage<U> thenApplyAsync
4704	>	(Function<? super T,? extends U> fn) {
4705	>	return cf.thenApplyAsync(fn); }
4706	>	public <U> CompletionStage<U> thenApplyAsync
4707	>	(Function<? super T,? extends U> fn,
4708	>	Executor executor) {
4709	>	return cf.thenApplyAsync(fn, executor); }
4710	>	public <U,V> CompletionStage<V> thenCombine
4711	>	(CompletionStage<? extends U> other,
4712	>	BiFunction<? super T,? super U,? extends V> fn) {
4713	>	return cf.thenCombine(other, fn); }
4714	>	public <U,V> CompletionStage<V> thenCombineAsync
4715	>	(CompletionStage<? extends U> other,
4716	>	BiFunction<? super T,? super U,? extends V> fn) {
4717	>	return cf.thenCombineAsync(other, fn); }
4718	>	public <U,V> CompletionStage<V> thenCombineAsync
4719	>	(CompletionStage<? extends U> other,
4720	>	BiFunction<? super T,? super U,? extends V> fn,
4721	>	Executor executor) {
4722	>	return cf.thenCombineAsync(other, fn, executor); }
4723	>	public <U> CompletionStage<Void> thenAcceptBoth
4724	>	(CompletionStage<? extends U> other,
4725	>	BiConsumer<? super T, ? super U> action) {
4726	>	return cf.thenAcceptBoth(other, action); }
4727	>	public <U> CompletionStage<Void> thenAcceptBothAsync
4728	>	(CompletionStage<? extends U> other,
4729	>	BiConsumer<? super T, ? super U> action) {
4730	>	return cf.thenAcceptBothAsync(other, action); }
4731	>	public <U> CompletionStage<Void> thenAcceptBothAsync
4732	>	(CompletionStage<? extends U> other,
4733	>	BiConsumer<? super T, ? super U> action,
4734	>	Executor executor) {
4735	>	return cf.thenAcceptBothAsync(other, action, executor); }
4736	>	public CompletionStage<Void> runAfterBoth
4737	>	(CompletionStage<?> other,
4738	>	Runnable action) {
4739	>	return cf.runAfterBoth(other, action); }
4740	>	public CompletionStage<Void> runAfterBothAsync
4741	>	(CompletionStage<?> other,
4742	>	Runnable action) {
4743	>	return cf.runAfterBothAsync(other, action); }
4744	>	public CompletionStage<Void> runAfterBothAsync
4745	>	(CompletionStage<?> other,
4746	>	Runnable action,
4747	>	Executor executor) {
4748	>	return cf.runAfterBothAsync(other, action, executor); }
4749	>	public <U> CompletionStage<U> applyToEither
4750	>	(CompletionStage<? extends T> other,
4751	>	Function<? super T, U> fn) {
4752	>	return cf.applyToEither(other, fn); }
4753	>	public <U> CompletionStage<U> applyToEitherAsync
4754	>	(CompletionStage<? extends T> other,
4755	>	Function<? super T, U> fn) {
4756	>	return cf.applyToEitherAsync(other, fn); }
4757	>	public <U> CompletionStage<U> applyToEitherAsync
4758	>	(CompletionStage<? extends T> other,
4759	>	Function<? super T, U> fn,
4760	>	Executor executor) {
4761	>	return cf.applyToEitherAsync(other, fn, executor); }
4762	>	public CompletionStage<Void> acceptEither
4763	>	(CompletionStage<? extends T> other,
4764	>	Consumer<? super T> action) {
4765	>	return cf.acceptEither(other, action); }
4766	>	public CompletionStage<Void> acceptEitherAsync
4767	>	(CompletionStage<? extends T> other,
4768	>	Consumer<? super T> action) {
4769	>	return cf.acceptEitherAsync(other, action); }
4770	>	public CompletionStage<Void> acceptEitherAsync
4771	>	(CompletionStage<? extends T> other,
4772	>	Consumer<? super T> action,
4773	>	Executor executor) {
4774	>	return cf.acceptEitherAsync(other, action, executor); }
4775	>	public CompletionStage<Void> runAfterEither
4776	>	(CompletionStage<?> other,
4777	>	Runnable action) {
4778	>	return cf.runAfterEither(other, action); }
4779	>	public CompletionStage<Void> runAfterEitherAsync
4780	>	(CompletionStage<?> other,
4781	>	Runnable action) {
4782	>	return cf.runAfterEitherAsync(other, action); }
4783	>	public CompletionStage<Void> runAfterEitherAsync
4784	>	(CompletionStage<?> other,
4785	>	Runnable action,
4786	>	Executor executor) {
4787	>	return cf.runAfterEitherAsync(other, action, executor); }
4788	>	public <U> CompletionStage<U> thenCompose
4789	>	(Function<? super T, ? extends CompletionStage<U>> fn) {
4790	>	return cf.thenCompose(fn); }
4791	>	public <U> CompletionStage<U> thenComposeAsync
4792	>	(Function<? super T, ? extends CompletionStage<U>> fn) {
4793	>	return cf.thenComposeAsync(fn); }
4794	>	public <U> CompletionStage<U> thenComposeAsync
4795	>	(Function<? super T, ? extends CompletionStage<U>> fn,
4796	>	Executor executor) {
4797	>	return cf.thenComposeAsync(fn, executor); }
4798	>	public <U> CompletionStage<U> handle
4799	>	(BiFunction<? super T, Throwable, ? extends U> fn) {
4800	>	return cf.handle(fn); }
4801	>	public <U> CompletionStage<U> handleAsync
4802	>	(BiFunction<? super T, Throwable, ? extends U> fn) {
4803	>	return cf.handleAsync(fn); }
4804	>	public <U> CompletionStage<U> handleAsync
4805	>	(BiFunction<? super T, Throwable, ? extends U> fn,
4806	>	Executor executor) {
4807	>	return cf.handleAsync(fn, executor); }
4808	>	public CompletionStage<T> whenComplete
4809	>	(BiConsumer<? super T, ? super Throwable> action) {
4810	>	return cf.whenComplete(action); }
4811	>	public CompletionStage<T> whenCompleteAsync
4812	>	(BiConsumer<? super T, ? super Throwable> action) {
4813	>	return cf.whenCompleteAsync(action); }
4814	>	public CompletionStage<T> whenCompleteAsync
4815	>	(BiConsumer<? super T, ? super Throwable> action,
4816	>	Executor executor) {
4817	>	return cf.whenCompleteAsync(action, executor); }
4818	>	public CompletionStage<T> exceptionally
4819	>	(Function<Throwable, ? extends T> fn) {
4820	>	return cf.exceptionally(fn); }
4821		}
4822
4823		/**
4824	<	* whenCompleteAsync action executes on normal completion, propagating
4825	<	* source result.
4824	>	* default-implemented exceptionallyAsync action is not invoked when
4825	>	* source completes normally, and source result is propagated
4826		*/
4827	<	public void testWhenCompleteAsync1() {
4828	<	final AtomicInteger a = new AtomicInteger();
4829	<	CompletableFuture<Integer> f = new CompletableFuture<>();
4830	<	CompletableFuture<Integer> g =
4831	<	f.whenCompleteAsync((Integer x, Throwable t) -> a.getAndIncrement());
4832	<	f.complete(three);
4833	<	checkCompletedNormally(f, three);
4834	<	checkCompletedNormally(g, three);
4835	<	assertEquals(a.get(), 1);
4836	<	}
4827	>	public void testDefaultExceptionallyAsync_normalCompletion() {
4828	>	for (boolean createIncomplete : new boolean[] { true, false })
4829	>	for (Integer v1 : new Integer[] { 1, null })
4830	>	{
4831	>	final AtomicInteger ran = new AtomicInteger(0);
4832	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
4833	>	final DelegatedCompletionStage<Integer> d =
4834	>	new DelegatedCompletionStage<Integer>(f);
4835	>	if (!createIncomplete) assertTrue(f.complete(v1));
4836	>	final CompletionStage<Integer> g = d.exceptionallyAsync
4837	>	((Throwable t) -> {
4838	>	ran.getAndIncrement();
4839	>	throw new AssertionError("should not be called");
4840	>	});
4841	>	if (createIncomplete) assertTrue(f.complete(v1));
4842	>
4843	>	checkCompletedNormally(g.toCompletableFuture(), v1);
4844	>	checkCompletedNormally(f, v1);
4845	>	assertEquals(0, ran.get());
4846	>	}}
4847
4848		/**
4849	<	* whenCompleteAsync action executes on exceptional completion, propagating
4850	<	* source result.
4849	>	* default-implemented exceptionallyAsync action completes with
4850	>	* function value on source exception
4851		*/
4852	<	public void testWhenCompleteAsync2() {
4853	<	final AtomicInteger a = new AtomicInteger();
4854	<	CompletableFuture<Integer> f = new CompletableFuture<>();
4855	<	CompletableFuture<Integer> g =
4856	<	f.whenCompleteAsync((Integer x, Throwable t) -> a.getAndIncrement());
4857	<	f.completeExceptionally(new CFException());
4858	<	checkCompletedWithWrappedCFException(f);
4859	<	checkCompletedWithWrappedCFException(g);
4860	<	}
4852	>	public void testDefaultExceptionallyAsync_exceptionalCompletion() {
4853	>	for (boolean createIncomplete : new boolean[] { true, false })
4854	>	for (Integer v1 : new Integer[] { 1, null })
4855	>	{
4856	>	final AtomicInteger ran = new AtomicInteger(0);
4857	>	final CFException ex = new CFException();
4858	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
4859	>	final DelegatedCompletionStage<Integer> d =
4860	>	new DelegatedCompletionStage<Integer>(f);
4861	>	if (!createIncomplete) f.completeExceptionally(ex);
4862	>	final CompletionStage<Integer> g = d.exceptionallyAsync
4863	>	((Throwable t) -> {
4864	>	assertSame(t, ex);
4865	>	ran.getAndIncrement();
4866	>	return v1;
4867	>	});
4868	>	if (createIncomplete) f.completeExceptionally(ex);
4869	>
4870	>	checkCompletedNormally(g.toCompletableFuture(), v1);
4871	>	checkCompletedExceptionally(f, ex);
4872	>	assertEquals(1, ran.get());
4873	>	}}
4874	>
4875	>	/**
4876	>	* Under default implementation, if an "exceptionally action"
4877	>	* throws an exception, it completes exceptionally with that
4878	>	* exception
4879	>	*/
4880	>	public void testDefaultExceptionallyAsync_exceptionalCompletionActionFailed() {
4881	>	for (boolean createIncomplete : new boolean[] { true, false })
4882	>	{
4883	>	final AtomicInteger ran = new AtomicInteger(0);
4884	>	final CFException ex1 = new CFException();
4885	>	final CFException ex2 = new CFException();
4886	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
4887	>	final DelegatedCompletionStage<Integer> d =
4888	>	new DelegatedCompletionStage<Integer>(f);
4889	>	if (!createIncomplete) f.completeExceptionally(ex1);
4890	>	final CompletionStage<Integer> g = d.exceptionallyAsync
4891	>	((Throwable t) -> {
4892	>	assertSame(t, ex1);
4893	>	ran.getAndIncrement();
4894	>	throw ex2;
4895	>	});
4896	>	if (createIncomplete) f.completeExceptionally(ex1);
4897	>
4898	>	checkCompletedWithWrappedException(g.toCompletableFuture(), ex2);
4899	>	checkCompletedExceptionally(f, ex1);
4900	>	checkCompletedExceptionally(d.toCompletableFuture(), ex1);
4901	>	assertEquals(1, ran.get());
4902	>	}}
4903
4904		/**
4905	<	* If a whenCompleteAsync action throws an exception when
4906	<	* triggered by a normal completion, it completes exceptionally
4905	>	* default-implemented exceptionallyCompose result completes
4906	>	* normally after normal completion of source
4907		*/
4908	<	public void testWhenCompleteAsync3() {
4909	<	CompletableFuture<Integer> f = new CompletableFuture<>();
4910	<	CompletableFuture<Integer> g =
4911	<	f.whenCompleteAsync((Integer x, Throwable t) ->
4912	<	{ throw new CFException(); } );
4913	<	f.complete(three);
4914	<	checkCompletedNormally(f, three);
4915	<	checkCompletedWithWrappedCFException(g);
4916	<	}
4908	>	public void testDefaultExceptionallyCompose_normalCompletion() {
4909	>	for (boolean createIncomplete : new boolean[] { true, false })
4910	>	for (Integer v1 : new Integer[] { 1, null })
4911	>	{
4912	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
4913	>	final ExceptionalCompletableFutureFunction r =
4914	>	new ExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4915	>	final DelegatedCompletionStage<Integer> d =
4916	>	new DelegatedCompletionStage<Integer>(f);
4917	>	if (!createIncomplete) assertTrue(f.complete(v1));
4918	>	final CompletionStage<Integer> g = d.exceptionallyCompose(r);
4919	>	if (createIncomplete) assertTrue(f.complete(v1));
4920	>
4921	>	checkCompletedNormally(f, v1);
4922	>	checkCompletedNormally(g.toCompletableFuture(), v1);
4923	>	r.assertNotInvoked();
4924	>	}}
4925
4926		/**
4927	<	* whenCompleteAsync action executes on normal completion, propagating
4928	<	* source result.
4927	>	* default-implemented exceptionallyCompose result completes
4928	>	* normally after exceptional completion of source
4929		*/
4930	<	public void testWhenCompleteAsync1e() {
4931	<	final AtomicInteger a = new AtomicInteger();
4932	<	ThreadExecutor exec = new ThreadExecutor();
4933	<	CompletableFuture<Integer> f = new CompletableFuture<>();
4934	<	CompletableFuture<Integer> g =
4935	<	f.whenCompleteAsync((Integer x, Throwable t) -> a.getAndIncrement(),
4936	<	exec);
4937	<	f.complete(three);
4938	<	checkCompletedNormally(f, three);
4939	<	checkCompletedNormally(g, three);
4940	<	assertEquals(a.get(), 1);
4941	<	}
4930	>	public void testDefaultExceptionallyCompose_exceptionalCompletion() {
4931	>	for (boolean createIncomplete : new boolean[] { true, false })
4932	>	{
4933	>	final CFException ex = new CFException();
4934	>	final ExceptionalCompletableFutureFunction r =
4935	>	new ExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4936	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
4937	>	final DelegatedCompletionStage<Integer> d =
4938	>	new DelegatedCompletionStage<Integer>(f);
4939	>	if (!createIncomplete) f.completeExceptionally(ex);
4940	>	final CompletionStage<Integer> g = d.exceptionallyCompose(r);
4941	>	if (createIncomplete) f.completeExceptionally(ex);
4942	>
4943	>	checkCompletedExceptionally(f, ex);
4944	>	checkCompletedNormally(g.toCompletableFuture(), r.value);
4945	>	r.assertInvoked();
4946	>	}}
4947	>
4948	>	/**
4949	>	* default-implemented exceptionallyCompose completes
4950	>	* exceptionally on exception if action does
4951	>	*/
4952	>	public void testDefaultExceptionallyCompose_actionFailed() {
4953	>	for (boolean createIncomplete : new boolean[] { true, false })
4954	>	{
4955	>	final CFException ex = new CFException();
4956	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
4957	>	final FailingExceptionalCompletableFutureFunction r
4958	>	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4959	>	final DelegatedCompletionStage<Integer> d =
4960	>	new DelegatedCompletionStage<Integer>(f);
4961	>	if (!createIncomplete) f.completeExceptionally(ex);
4962	>	final CompletionStage<Integer> g = d.exceptionallyCompose(r);
4963	>	if (createIncomplete) f.completeExceptionally(ex);
4964	>
4965	>	checkCompletedExceptionally(f, ex);
4966	>	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
4967	>	r.assertInvoked();
4968	>	}}
4969
4970		/**
4971	<	* whenCompleteAsync action executes on exceptional completion, propagating
4972	<	* source result.
4971	>	* default-implemented exceptionallyComposeAsync result completes
4972	>	* normally after normal completion of source
4973		*/
4974	<	public void testWhenCompleteAsync2e() {
4975	<	final AtomicInteger a = new AtomicInteger();
4976	<	ThreadExecutor exec = new ThreadExecutor();
4977	<	CompletableFuture<Integer> f = new CompletableFuture<>();
4978	<	CompletableFuture<Integer> g =
4979	<	f.whenCompleteAsync((Integer x, Throwable t) -> a.getAndIncrement(),
4980	<	exec);
4981	<	f.completeExceptionally(new CFException());
4982	<	checkCompletedWithWrappedCFException(f);
4983	<	checkCompletedWithWrappedCFException(g);
4984	<	}
4974	>	public void testDefaultExceptionallyComposeAsync_normalCompletion() {
4975	>	for (boolean createIncomplete : new boolean[] { true, false })
4976	>	for (Integer v1 : new Integer[] { 1, null })
4977	>	{
4978	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
4979	>	final ExceptionalCompletableFutureFunction r =
4980	>	new ExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
4981	>	final DelegatedCompletionStage<Integer> d =
4982	>	new DelegatedCompletionStage<Integer>(f);
4983	>	if (!createIncomplete) assertTrue(f.complete(v1));
4984	>	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
4985	>	if (createIncomplete) assertTrue(f.complete(v1));
4986	>
4987	>	checkCompletedNormally(f, v1);
4988	>	checkCompletedNormally(g.toCompletableFuture(), v1);
4989	>	r.assertNotInvoked();
4990	>	}}
4991
4992		/**
4993	<	* If a whenCompleteAsync action throws an exception when triggered
4994	<	* by a normal completion, it completes exceptionally
4993	>	* default-implemented exceptionallyComposeAsync result completes
4994	>	* normally after exceptional completion of source
4995		*/
4996	<	public void testWhenCompleteAsync3e() {
4997	<	ThreadExecutor exec = new ThreadExecutor();
4998	<	CompletableFuture<Integer> f = new CompletableFuture<>();
4999	<	CompletableFuture<Integer> g =
5000	<	f.whenCompleteAsync((Integer x, Throwable t) ->
5001	<	{ throw new CFException(); },
5002	<	exec);
5003	<	f.complete(three);
5004	<	checkCompletedNormally(f, three);
5005	<	checkCompletedWithWrappedCFException(g);
5006	<	}
4996	>	public void testDefaultExceptionallyComposeAsync_exceptionalCompletion() {
4997	>	for (boolean createIncomplete : new boolean[] { true, false })
4998	>	{
4999	>	final CFException ex = new CFException();
5000	>	final ExceptionalCompletableFutureFunction r =
5001	>	new ExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
5002	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
5003	>	final DelegatedCompletionStage<Integer> d =
5004	>	new DelegatedCompletionStage<Integer>(f);
5005	>	if (!createIncomplete) f.completeExceptionally(ex);
5006	>	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
5007	>	if (createIncomplete) f.completeExceptionally(ex);
5008	>
5009	>	checkCompletedExceptionally(f, ex);
5010	>	checkCompletedNormally(g.toCompletableFuture(), r.value);
5011	>	r.assertInvoked();
5012	>	}}
5013	>
5014	>	/**
5015	>	* default-implemented exceptionallyComposeAsync completes
5016	>	* exceptionally on exception if action does
5017	>	*/
5018	>	public void testDefaultExceptionallyComposeAsync_actionFailed() {
5019	>	for (boolean createIncomplete : new boolean[] { true, false })
5020	>	{
5021	>	final CFException ex = new CFException();
5022	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
5023	>	final FailingExceptionalCompletableFutureFunction r
5024	>	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
5025	>	final DelegatedCompletionStage<Integer> d =
5026	>	new DelegatedCompletionStage<Integer>(f);
5027	>	if (!createIncomplete) f.completeExceptionally(ex);
5028	>	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
5029	>	if (createIncomplete) f.completeExceptionally(ex);
5030	>
5031	>	checkCompletedExceptionally(f, ex);
5032	>	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
5033	>	r.assertInvoked();
5034	>	}}
5035
5036		/**
5037	<	* handleAsync action completes normally with function value on
5038	<	* either normal or exceptional completion of source
5037	>	* default-implemented exceptionallyComposeAsync result completes
5038	>	* normally after normal completion of source
5039		*/
5040	<	public void testHandleAsync() {
5041	<	CompletableFuture<Integer> f, g;
5042	<	IntegerHandler r;
5043	<
5044	<	f = new CompletableFuture<>();
5045	<	g = f.handleAsync(r = new IntegerHandler());
5046	<	assertFalse(r.ran);
5047	<	f.completeExceptionally(new CFException());
5048	<	checkCompletedWithWrappedCFException(f);
5049	<	checkCompletedNormally(g, three);
5050	<	assertTrue(r.ran);
5051	<
3201	<	f = new CompletableFuture<>();
3202	<	g = f.handleAsync(r = new IntegerHandler());
3203	<	assertFalse(r.ran);
3204	<	f.completeExceptionally(new CFException());
3205	<	checkCompletedWithWrappedCFException(f);
3206	<	checkCompletedNormally(g, three);
3207	<	assertTrue(r.ran);
3208	<
3209	<	f = new CompletableFuture<>();
3210	<	g = f.handleAsync(r = new IntegerHandler());
3211	<	assertFalse(r.ran);
3212	<	f.complete(one);
3213	<	checkCompletedNormally(f, one);
3214	<	checkCompletedNormally(g, two);
3215	<	assertTrue(r.ran);
5040	>	public void testDefaultExceptionallyComposeAsyncExecutor_normalCompletion() {
5041	>	for (boolean createIncomplete : new boolean[] { true, false })
5042	>	for (Integer v1 : new Integer[] { 1, null })
5043	>	{
5044	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
5045	>	final ExceptionalCompletableFutureFunction r =
5046	>	new ExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
5047	>	final DelegatedCompletionStage<Integer> d =
5048	>	new DelegatedCompletionStage<Integer>(f);
5049	>	if (!createIncomplete) assertTrue(f.complete(v1));
5050	>	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r, new ThreadExecutor());
5051	>	if (createIncomplete) assertTrue(f.complete(v1));
5052
5053	<	f = new CompletableFuture<>();
5054	<	g = f.handleAsync(r = new IntegerHandler());
5055	<	assertFalse(r.ran);
5056	<	f.complete(one);
3221	<	checkCompletedNormally(f, one);
3222	<	checkCompletedNormally(g, two);
3223	<	assertTrue(r.ran);
3224	<	}
5053	>	checkCompletedNormally(f, v1);
5054	>	checkCompletedNormally(g.toCompletableFuture(), v1);
5055	>	r.assertNotInvoked();
5056	>	}}
5057
5058		/**
5059	<	* handleAsync action with Executor completes normally with
5060	<	* function value on either normal or exceptional completion of
3229	<	* source
5059	>	* default-implemented exceptionallyComposeAsync result completes
5060	>	* normally after exceptional completion of source
5061		*/
5062	<	public void testHandleAsync2() {
5063	<	CompletableFuture<Integer> f, g;
5064	<	ThreadExecutor exec = new ThreadExecutor();
5065	<	IntegerHandler r;
5066	<
5067	<	f = new CompletableFuture<>();
5068	<	g = f.handleAsync(r = new IntegerHandler(), exec);
5069	<	assertFalse(r.ran);
5070	<	f.completeExceptionally(new CFException());
5071	<	checkCompletedWithWrappedCFException(f);
5072	<	checkCompletedNormally(g, three);
5073	<	assertTrue(r.ran);
5074	<
5075	<	f = new CompletableFuture<>();
5076	<	g = f.handleAsync(r = new IntegerHandler(), exec);
5077	<	assertFalse(r.ran);
5078	<	f.completeExceptionally(new CFException());
5079	<	checkCompletedWithWrappedCFException(f);
5080	<	checkCompletedNormally(g, three);
5081	<	assertTrue(r.ran);
5082	<
5083	<	f = new CompletableFuture<>();
5084	<	g = f.handleAsync(r = new IntegerHandler(), exec);
5085	<	assertFalse(r.ran);
5086	<	f.complete(one);
5087	<	checkCompletedNormally(f, one);
5088	<	checkCompletedNormally(g, two);
5089	<	assertTrue(r.ran);
5090	<
5091	<	f = new CompletableFuture<>();
5092	<	g = f.handleAsync(r = new IntegerHandler(), exec);
5093	<	assertFalse(r.ran);
5094	<	f.complete(one);
5095	<	checkCompletedNormally(f, one);
5096	<	checkCompletedNormally(g, two);
5097	<	assertTrue(r.ran);
5098	<	}
5062	>	public void testDefaultExceptionallyComposeAsyncExecutor_exceptionalCompletion() {
5063	>	for (boolean createIncomplete : new boolean[] { true, false })
5064	>	{
5065	>	final CFException ex = new CFException();
5066	>	final ExceptionalCompletableFutureFunction r =
5067	>	new ExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
5068	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
5069	>	final DelegatedCompletionStage<Integer> d =
5070	>	new DelegatedCompletionStage<Integer>(f);
5071	>	if (!createIncomplete) f.completeExceptionally(ex);
5072	>	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r, new ThreadExecutor());
5073	>	if (createIncomplete) f.completeExceptionally(ex);
5074	>
5075	>	checkCompletedExceptionally(f, ex);
5076	>	checkCompletedNormally(g.toCompletableFuture(), r.value);
5077	>	r.assertInvoked();
5078	>	}}
5079	>
5080	>	/**
5081	>	* default-implemented exceptionallyComposeAsync completes
5082	>	* exceptionally on exception if action does
5083	>	*/
5084	>	public void testDefaultExceptionallyComposeAsyncExecutor_actionFailed() {
5085	>	for (boolean createIncomplete : new boolean[] { true, false })
5086	>	{
5087	>	final CFException ex = new CFException();
5088	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
5089	>	final FailingExceptionalCompletableFutureFunction r
5090	>	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
5091	>	final DelegatedCompletionStage<Integer> d =
5092	>	new DelegatedCompletionStage<Integer>(f);
5093	>	if (!createIncomplete) f.completeExceptionally(ex);
5094	>	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r, new ThreadExecutor());
5095	>	if (createIncomplete) f.completeExceptionally(ex);
5096	>
5097	>	checkCompletedExceptionally(f, ex);
5098	>	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
5099	>	r.assertInvoked();
5100	>	}}
5101
5102		}

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