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

Comparing jsr166/src/test/tck/CompletableFutureTest.java (file contents):
Revision 1.34 by jsr166, Sun Jun 1 21:17:05 2014 UTC vs.
Revision 1.137 by jsr166, Sun Nov 15 21:41:22 2015 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.TimeoutException;
34	+	import java.util.concurrent.TimeUnit;
35		import java.util.concurrent.atomic.AtomicInteger;
36	<	import static java.util.concurrent.TimeUnit.MILLISECONDS;
22	<	import static java.util.concurrent.TimeUnit.SECONDS;
23	<	import java.util.*;
24	<	import java.util.function.Supplier;
25	<	import java.util.function.Consumer;
36	>	import java.util.concurrent.atomic.AtomicReference;
37		import java.util.function.BiConsumer;
27	–	import java.util.function.Function;
38		import java.util.function.BiFunction;
39	+	import java.util.function.Consumer;
40	+	import java.util.function.Function;
41	+	import java.util.function.Predicate;
42	+	import java.util.function.Supplier;
43	+
44	+	import junit.framework.AssertionFailedError;
45	+	import junit.framework.Test;
46	+	import junit.framework.TestSuite;
47
48		public class CompletableFutureTest extends JSR166TestCase {
49
50		public static void main(String[] args) {
51	<	junit.textui.TestRunner.run(suite());
51	>	main(suite(), args);
52		}
53		public static Test suite() {
54		return new TestSuite(CompletableFutureTest.class);
#	Line 41 | Line 59 | public class CompletableFutureTest exten
59		void checkIncomplete(CompletableFuture<?> f) {
60		assertFalse(f.isDone());
61		assertFalse(f.isCancelled());
62	<	assertTrue(f.toString().contains("[Not completed]"));
62	>	assertTrue(f.toString().contains("Not completed"));
63		try {
64		assertNull(f.getNow(null));
65		} catch (Throwable fail) { threadUnexpectedException(fail); }
#	Line 54 | Line 72 | public class CompletableFutureTest exten
72		}
73
74		<T> void checkCompletedNormally(CompletableFuture<T> f, T value) {
75	<	try {
76	<	assertEquals(value, f.get(LONG_DELAY_MS, MILLISECONDS));
59	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
75	>	checkTimedGet(f, value);
76	>
77		try {
78		assertEquals(value, f.join());
79		} catch (Throwable fail) { threadUnexpectedException(fail); }
#	Line 72 | Line 89 | public class CompletableFutureTest exten
89		assertTrue(f.toString().contains("[Completed normally]"));
90		}
91
92	<	void checkCompletedWithWrappedCFException(CompletableFuture<?> f) {
93	<	try {
94	<	f.get(LONG_DELAY_MS, MILLISECONDS);
95	<	shouldThrow();
96	<	} catch (ExecutionException success) {
97	<	assertTrue(success.getCause() instanceof CFException);
98	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
99	<	try {
100	<	f.join();
101	<	shouldThrow();
102	<	} catch (CompletionException success) {
103	<	assertTrue(success.getCause() instanceof CFException);
104	<	}
105	<	try {
106	<	f.getNow(null);
107	<	shouldThrow();
108	<	} catch (CompletionException success) {
92	<	assertTrue(success.getCause() instanceof CFException);
92	>	/**
93	>	* Returns the "raw" internal exceptional completion of f,
94	>	* without any additional wrapping with CompletionException.
95	>	*/
96	>	<U> Throwable exceptionalCompletion(CompletableFuture<U> f) {
97	>	// handle (and whenComplete) can distinguish between "direct"
98	>	// and "wrapped" exceptional completion
99	>	return f.handle((U u, Throwable t) -> t).join();
100	>	}
101	>
102	>	void checkCompletedExceptionally(CompletableFuture<?> f,
103	>	boolean wrapped,
104	>	Consumer<Throwable> checker) {
105	>	Throwable cause = exceptionalCompletion(f);
106	>	if (wrapped) {
107	>	assertTrue(cause instanceof CompletionException);
108	>	cause = cause.getCause();
109		}
110	<	try {
95	<	f.get();
96	<	shouldThrow();
97	<	} catch (ExecutionException success) {
98	<	assertTrue(success.getCause() instanceof CFException);
99	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
100	<	assertTrue(f.isDone());
101	<	assertFalse(f.isCancelled());
102	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
103	<	}
110	>	checker.accept(cause);
111
112	<	void checkCompletedWithWrappedCFException(CompletableFuture<?> f,
106	<	CFException ex) {
112	>	long startTime = System.nanoTime();
113		try {
114		f.get(LONG_DELAY_MS, MILLISECONDS);
115		shouldThrow();
116		} catch (ExecutionException success) {
117	<	assertSame(ex, success.getCause());
117	>	assertSame(cause, success.getCause());
118		} catch (Throwable fail) { threadUnexpectedException(fail); }
119	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
120	+
121		try {
122		f.join();
123		shouldThrow();
124		} catch (CompletionException success) {
125	<	assertSame(ex, success.getCause());
126	<	}
125	>	assertSame(cause, success.getCause());
126	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
127	>
128		try {
129		f.getNow(null);
130		shouldThrow();
131		} catch (CompletionException success) {
132	<	assertSame(ex, success.getCause());
133	<	}
132	>	assertSame(cause, success.getCause());
133	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
134	>
135		try {
136		f.get();
137		shouldThrow();
138		} catch (ExecutionException success) {
139	<	assertSame(ex, success.getCause());
139	>	assertSame(cause, success.getCause());
140		} catch (Throwable fail) { threadUnexpectedException(fail); }
141	<	assertTrue(f.isDone());
141	>
142		assertFalse(f.isCancelled());
143	+	assertTrue(f.isDone());
144	+	assertTrue(f.isCompletedExceptionally());
145		assertTrue(f.toString().contains("[Completed exceptionally]"));
146		}
147
148	+	void checkCompletedWithWrappedCFException(CompletableFuture<?> f) {
149	+	checkCompletedExceptionally(f, true,
150	+	(t) -> assertTrue(t instanceof CFException));
151	+	}
152	+
153	+	void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) {
154	+	checkCompletedExceptionally(f, true,
155	+	(t) -> assertTrue(t instanceof CancellationException));
156	+	}
157	+
158	+	void checkCompletedWithTimeoutException(CompletableFuture<?> f) {
159	+	checkCompletedExceptionally(f, false,
160	+	(t) -> assertTrue(t instanceof TimeoutException));
161	+	}
162	+
163	+	void checkCompletedWithWrappedException(CompletableFuture<?> f,
164	+	Throwable ex) {
165	+	checkCompletedExceptionally(f, true, (t) -> assertSame(t, ex));
166	+	}
167	+
168	+	void checkCompletedExceptionally(CompletableFuture<?> f, Throwable ex) {
169	+	checkCompletedExceptionally(f, false, (t) -> assertSame(t, ex));
170	+	}
171	+
172		void checkCancelled(CompletableFuture<?> f) {
173	+	long startTime = System.nanoTime();
174		try {
175		f.get(LONG_DELAY_MS, MILLISECONDS);
176		shouldThrow();
177		} catch (CancellationException success) {
178		} catch (Throwable fail) { threadUnexpectedException(fail); }
179	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
180	+
181		try {
182		f.join();
183		shouldThrow();
#	Line 152 | Line 191 | public class CompletableFutureTest exten
191		shouldThrow();
192		} catch (CancellationException success) {
193		} catch (Throwable fail) { threadUnexpectedException(fail); }
155	–	assertTrue(f.isDone());
156	–	assertTrue(f.isCompletedExceptionally());
157	–	assertTrue(f.isCancelled());
158	–	assertTrue(f.toString().contains("[Completed exceptionally]"));
159	–	}
194
195	<	void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) {
196	<	try {
163	<	f.get(LONG_DELAY_MS, MILLISECONDS);
164	<	shouldThrow();
165	<	} catch (ExecutionException success) {
166	<	assertTrue(success.getCause() instanceof CancellationException);
167	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
168	<	try {
169	<	f.join();
170	<	shouldThrow();
171	<	} catch (CompletionException success) {
172	<	assertTrue(success.getCause() instanceof CancellationException);
173	<	}
174	<	try {
175	<	f.getNow(null);
176	<	shouldThrow();
177	<	} catch (CompletionException success) {
178	<	assertTrue(success.getCause() instanceof CancellationException);
179	<	}
180	<	try {
181	<	f.get();
182	<	shouldThrow();
183	<	} catch (ExecutionException success) {
184	<	assertTrue(success.getCause() instanceof CancellationException);
185	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
195	>	assertTrue(exceptionalCompletion(f) instanceof CancellationException);
196	>
197		assertTrue(f.isDone());
187	–	assertFalse(f.isCancelled());
198		assertTrue(f.isCompletedExceptionally());
199	+	assertTrue(f.isCancelled());
200		assertTrue(f.toString().contains("[Completed exceptionally]"));
201		}
202
#	Line 203 | Line 214 | public class CompletableFutureTest exten
214		* isCancelled, join, get, and getNow
215		*/
216		public void testComplete() {
217	+	for (Integer v1 : new Integer[] { 1, null })
218	+	{
219		CompletableFuture<Integer> f = new CompletableFuture<>();
220		checkIncomplete(f);
221	<	f.complete(one);
222	<	checkCompletedNormally(f, one);
223	<	}
221	>	assertTrue(f.complete(v1));
222	>	assertFalse(f.complete(v1));
223	>	checkCompletedNormally(f, v1);
224	>	}}
225
226		/**
227		* completeExceptionally completes exceptionally, as indicated by
#	Line 215 | Line 229 | public class CompletableFutureTest exten
229		*/
230		public void testCompleteExceptionally() {
231		CompletableFuture<Integer> f = new CompletableFuture<>();
232	+	CFException ex = new CFException();
233		checkIncomplete(f);
234	<	f.completeExceptionally(new CFException());
235	<	checkCompletedWithWrappedCFException(f);
234	>	f.completeExceptionally(ex);
235	>	checkCompletedExceptionally(f, ex);
236		}
237
238		/**
#	Line 225 | Line 240 | public class CompletableFutureTest exten
240		* methods isDone, isCancelled, join, get, and getNow
241		*/
242		public void testCancel() {
243	+	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
244	+	{
245		CompletableFuture<Integer> f = new CompletableFuture<>();
246		checkIncomplete(f);
247	<	assertTrue(f.cancel(true));
247	>	assertTrue(f.cancel(mayInterruptIfRunning));
248	>	assertTrue(f.cancel(mayInterruptIfRunning));
249	>	assertTrue(f.cancel(!mayInterruptIfRunning));
250		checkCancelled(f);
251	<	}
251	>	}}
252
253		/**
254		* obtrudeValue forces completion with given value
#	Line 237 | Line 256 | public class CompletableFutureTest exten
256		public void testObtrudeValue() {
257		CompletableFuture<Integer> f = new CompletableFuture<>();
258		checkIncomplete(f);
259	<	f.complete(one);
259	>	assertTrue(f.complete(one));
260		checkCompletedNormally(f, one);
261		f.obtrudeValue(three);
262		checkCompletedNormally(f, three);
#	Line 246 | Line 265 | public class CompletableFutureTest exten
265		f = new CompletableFuture<>();
266		f.obtrudeValue(three);
267		checkCompletedNormally(f, three);
268	+	f.obtrudeValue(null);
269	+	checkCompletedNormally(f, null);
270		f = new CompletableFuture<>();
271		f.completeExceptionally(new CFException());
272		f.obtrudeValue(four);
#	Line 256 | Line 277 | public class CompletableFutureTest exten
277		* obtrudeException forces completion with given exception
278		*/
279		public void testObtrudeException() {
280	<	CompletableFuture<Integer> f = new CompletableFuture<>();
281	<	checkIncomplete(f);
282	<	f.complete(one);
283	<	checkCompletedNormally(f, one);
284	<	f.obtrudeException(new CFException());
264	<	checkCompletedWithWrappedCFException(f);
280	>	for (Integer v1 : new Integer[] { 1, null })
281	>	{
282	>	CFException ex;
283	>	CompletableFuture<Integer> f;
284	>
285		f = new CompletableFuture<>();
286	<	f.obtrudeException(new CFException());
287	<	checkCompletedWithWrappedCFException(f);
286	>	assertTrue(f.complete(v1));
287	>	for (int i = 0; i < 2; i++) {
288	>	f.obtrudeException(ex = new CFException());
289	>	checkCompletedExceptionally(f, ex);
290	>	}
291	>
292	>	f = new CompletableFuture<>();
293	>	for (int i = 0; i < 2; i++) {
294	>	f.obtrudeException(ex = new CFException());
295	>	checkCompletedExceptionally(f, ex);
296	>	}
297	>
298		f = new CompletableFuture<>();
299	+	f.completeExceptionally(ex = new CFException());
300	+	f.obtrudeValue(v1);
301	+	checkCompletedNormally(f, v1);
302	+	f.obtrudeException(ex = new CFException());
303	+	checkCompletedExceptionally(f, ex);
304		f.completeExceptionally(new CFException());
305	<	f.obtrudeValue(four);
306	<	checkCompletedNormally(f, four);
307	<	f.obtrudeException(new CFException());
308	<	checkCompletedWithWrappedCFException(f);
274	<	}
305	>	checkCompletedExceptionally(f, ex);
306	>	assertFalse(f.complete(v1));
307	>	checkCompletedExceptionally(f, ex);
308	>	}}
309
310		/**
311		* getNumberOfDependents returns number of dependent tasks
312		*/
313		public void testGetNumberOfDependents() {
314	+	for (ExecutionMode m : ExecutionMode.values())
315	+	for (Integer v1 : new Integer[] { 1, null })
316	+	{
317		CompletableFuture<Integer> f = new CompletableFuture<>();
318	<	assertEquals(f.getNumberOfDependents(), 0);
319	<	CompletableFuture g = f.thenRun(new Noop());
320	<	assertEquals(f.getNumberOfDependents(), 1);
321	<	assertEquals(g.getNumberOfDependents(), 0);
322	<	CompletableFuture h = f.thenRun(new Noop());
323	<	assertEquals(f.getNumberOfDependents(), 2);
324	<	f.complete(1);
318	>	assertEquals(0, f.getNumberOfDependents());
319	>	final CompletableFuture<Void> g = m.thenRun(f, new Noop(m));
320	>	assertEquals(1, f.getNumberOfDependents());
321	>	assertEquals(0, g.getNumberOfDependents());
322	>	final CompletableFuture<Void> h = m.thenRun(f, new Noop(m));
323	>	assertEquals(2, f.getNumberOfDependents());
324	>	assertEquals(0, h.getNumberOfDependents());
325	>	assertTrue(f.complete(v1));
326		checkCompletedNormally(g, null);
327	<	assertEquals(f.getNumberOfDependents(), 0);
328	<	assertEquals(g.getNumberOfDependents(), 0);
329	<	}
327	>	checkCompletedNormally(h, null);
328	>	assertEquals(0, f.getNumberOfDependents());
329	>	assertEquals(0, g.getNumberOfDependents());
330	>	assertEquals(0, h.getNumberOfDependents());
331	>	}}
332
333		/**
334		* toString indicates current completion state
#	Line 299 | Line 339 | public class CompletableFutureTest exten
339		f = new CompletableFuture<String>();
340		assertTrue(f.toString().contains("[Not completed]"));
341
342	<	f.complete("foo");
342	>	assertTrue(f.complete("foo"));
343		assertTrue(f.toString().contains("[Completed normally]"));
344
345		f = new CompletableFuture<String>();
346	<	f.completeExceptionally(new IndexOutOfBoundsException());
346	>	assertTrue(f.completeExceptionally(new IndexOutOfBoundsException()));
347		assertTrue(f.toString().contains("[Completed exceptionally]"));
348	+
349	+	for (boolean mayInterruptIfRunning : new boolean[] { true, false }) {
350	+	f = new CompletableFuture<String>();
351	+	assertTrue(f.cancel(mayInterruptIfRunning));
352	+	assertTrue(f.toString().contains("[Completed exceptionally]"));
353	+	}
354		}
355
356		/**
#	Line 315 | Line 361 | public class CompletableFutureTest exten
361		checkCompletedNormally(f, "test");
362		}
363
364	<	// Choose non-commutative actions for better coverage
365	<
366	<	static final Supplier<Integer> supplyOne =
367	<	() -> Integer.valueOf(1);
368	<	static final Function<Integer, Integer> inc =
369	<	(Integer x) -> Integer.valueOf(x.intValue() + 1);
370	<	static final BiFunction<Integer, Integer, Integer> subtract =
325	<	(Integer x, Integer y) -> Integer.valueOf(x.intValue() - y.intValue());
326	<	static final class IncAction implements Consumer<Integer> {
327	<	int value;
328	<	public void accept(Integer x) { value = x.intValue() + 1; }
329	<	}
330	<	static final class SubtractAction implements BiConsumer<Integer, Integer> {
331	<	int value;
332	<	public void accept(Integer x, Integer y) {
333	<	value = x.intValue() - y.intValue();
364	>	abstract class CheckedAction {
365	>	int invocationCount = 0;
366	>	final ExecutionMode m;
367	>	CheckedAction(ExecutionMode m) { this.m = m; }
368	>	void invoked() {
369	>	m.checkExecutionMode();
370	>	assertEquals(0, invocationCount++);
371		}
372	<	}
373	<	static final class Noop implements Runnable {
337	<	boolean ran;
338	<	public void run() { ran = true; }
372	>	void assertNotInvoked() { assertEquals(0, invocationCount); }
373	>	void assertInvoked() { assertEquals(1, invocationCount); }
374		}
375
376	<	static final class FailingSupplier implements Supplier<Integer> {
377	<	boolean ran;
378	<	public Integer get() { ran = true; throw new CFException(); }
379	<	}
380	<	static final class FailingConsumer implements Consumer<Integer> {
381	<	boolean ran;
347	<	public void accept(Integer x) { ran = true; throw new CFException(); }
348	<	}
349	<	static final class FailingBiConsumer implements BiConsumer<Integer, Integer> {
350	<	boolean ran;
351	<	public void accept(Integer x, Integer y) { ran = true; throw new CFException(); }
352	<	}
353	<	static final class FailingFunction implements Function<Integer, Integer> {
354	<	boolean ran;
355	<	public Integer apply(Integer x) { ran = true; throw new CFException(); }
356	<	}
357	<	static final class FailingBiFunction implements BiFunction<Integer, Integer, Integer> {
358	<	boolean ran;
359	<	public Integer apply(Integer x, Integer y) { ran = true; throw new CFException(); }
360	<	}
361	<	static final class FailingNoop implements Runnable {
362	<	boolean ran;
363	<	public void run() { ran = true; throw new CFException(); }
364	<	}
365	<
366	<	static final class CompletableFutureInc
367	<	implements Function<Integer, CompletableFuture<Integer>> {
368	<	boolean ran;
369	<	public CompletableFuture<Integer> apply(Integer x) {
370	<	ran = true;
371	<	CompletableFuture<Integer> f = new CompletableFuture<>();
372	<	f.complete(Integer.valueOf(x.intValue() + 1));
373	<	return f;
376	>	abstract class CheckedIntegerAction extends CheckedAction {
377	>	Integer value;
378	>	CheckedIntegerAction(ExecutionMode m) { super(m); }
379	>	void assertValue(Integer expected) {
380	>	assertInvoked();
381	>	assertEquals(expected, value);
382		}
383		}
384
385	<	static final class FailingCompletableFutureFunction
386	<	implements Function<Integer, CompletableFuture<Integer>> {
387	<	boolean ran;
388	<	public CompletableFuture<Integer> apply(Integer x) {
389	<	ran = true; throw new CFException();
385	>	class IntegerSupplier extends CheckedAction
386	>	implements Supplier<Integer>
387	>	{
388	>	final Integer value;
389	>	IntegerSupplier(ExecutionMode m, Integer value) {
390	>	super(m);
391	>	this.value = value;
392		}
393	<	}
394	<
395	<	// Used for explicit executor tests
386	<	static final class ThreadExecutor implements Executor {
387	<	AtomicInteger count = new AtomicInteger(0);
388	<
389	<	public void execute(Runnable r) {
390	<	count.getAndIncrement();
391	<	new Thread(r).start();
393	>	public Integer get() {
394	>	invoked();
395	>	return value;
396		}
397		}
398
399	<	static final class ExceptionToInteger implements Function<Throwable, Integer> {
400	<	public Integer apply(Throwable x) { return Integer.valueOf(3); }
399	>	// A function that handles and produces null values as well.
400	>	static Integer inc(Integer x) {
401	>	return (x == null) ? null : x + 1;
402		}
403
404	<	static final class IntegerHandler implements BiFunction<Integer, Throwable, Integer> {
405	<	boolean ran;
406	<	public Integer apply(Integer x, Throwable t) {
407	<	ran = true;
408	<	return (t == null) ? two : three;
404	>	class NoopConsumer extends CheckedIntegerAction
405	>	implements Consumer<Integer>
406	>	{
407	>	NoopConsumer(ExecutionMode m) { super(m); }
408	>	public void accept(Integer x) {
409	>	invoked();
410	>	value = x;
411		}
412		}
413
414	<	/**
415	<	* exceptionally action completes with function value on source
416	<	* exception; otherwise with source value
417	<	*/
418	<	public void testExceptionally() {
419	<	CompletableFuture<Integer> f = new CompletableFuture<>();
420	<	ExceptionToInteger r = new ExceptionToInteger();
421	<	CompletableFuture<Integer> g = f.exceptionally(r);
415	<	f.completeExceptionally(new CFException());
416	<	checkCompletedNormally(g, three);
417	<
418	<	f = new CompletableFuture<>();
419	<	r = new ExceptionToInteger();
420	<	g = f.exceptionally(r);
421	<	f.complete(one);
422	<	checkCompletedNormally(g, one);
423	<	}
424	<
425	<	/**
426	<	* handle action completes normally with function value on either
427	<	* normal or exceptional completion of source
428	<	*/
429	<	public void testHandle() {
430	<	CompletableFuture<Integer> f, g;
431	<	IntegerHandler r;
432	<
433	<	f = new CompletableFuture<>();
434	<	f.completeExceptionally(new CFException());
435	<	g = f.handle(r = new IntegerHandler());
436	<	assertTrue(r.ran);
437	<	checkCompletedNormally(g, three);
438	<
439	<	f = new CompletableFuture<>();
440	<	g = f.handle(r = new IntegerHandler());
441	<	assertFalse(r.ran);
442	<	f.completeExceptionally(new CFException());
443	<	checkCompletedNormally(g, three);
444	<	assertTrue(r.ran);
445	<
446	<	f = new CompletableFuture<>();
447	<	f.complete(one);
448	<	g = f.handle(r = new IntegerHandler());
449	<	assertTrue(r.ran);
450	<	checkCompletedNormally(g, two);
451	<
452	<	f = new CompletableFuture<>();
453	<	g = f.handle(r = new IntegerHandler());
454	<	assertFalse(r.ran);
455	<	f.complete(one);
456	<	assertTrue(r.ran);
457	<	checkCompletedNormally(g, two);
458	<	}
459	<
460	<	/**
461	<	* runAsync completes after running Runnable
462	<	*/
463	<	public void testRunAsync() {
464	<	Noop r = new Noop();
465	<	CompletableFuture<Void> f = CompletableFuture.runAsync(r);
466	<	assertNull(f.join());
467	<	assertTrue(r.ran);
468	<	checkCompletedNormally(f, null);
469	<	}
470	<
471	<	/**
472	<	* runAsync with executor completes after running Runnable
473	<	*/
474	<	public void testRunAsync2() {
475	<	Noop r = new Noop();
476	<	ThreadExecutor exec = new ThreadExecutor();
477	<	CompletableFuture<Void> f = CompletableFuture.runAsync(r, exec);
478	<	assertNull(f.join());
479	<	assertTrue(r.ran);
480	<	checkCompletedNormally(f, null);
481	<	assertEquals(1, exec.count.get());
482	<	}
483	<
484	<	/**
485	<	* failing runAsync completes exceptionally after running Runnable
486	<	*/
487	<	public void testRunAsync3() {
488	<	FailingNoop r = new FailingNoop();
489	<	CompletableFuture<Void> f = CompletableFuture.runAsync(r);
490	<	checkCompletedWithWrappedCFException(f);
491	<	assertTrue(r.ran);
492	<	}
493	<
494	<	/**
495	<	* supplyAsync completes with result of supplier
496	<	*/
497	<	public void testSupplyAsync() {
498	<	CompletableFuture<Integer> f;
499	<	f = CompletableFuture.supplyAsync(supplyOne);
500	<	assertEquals(f.join(), one);
501	<	checkCompletedNormally(f, one);
502	<	}
503	<
504	<	/**
505	<	* supplyAsync with executor completes with result of supplier
506	<	*/
507	<	public void testSupplyAsync2() {
508	<	CompletableFuture<Integer> f;
509	<	f = CompletableFuture.supplyAsync(supplyOne, new ThreadExecutor());
510	<	assertEquals(f.join(), one);
511	<	checkCompletedNormally(f, one);
512	<	}
513	<
514	<	/**
515	<	* Failing supplyAsync completes exceptionally
516	<	*/
517	<	public void testSupplyAsync3() {
518	<	FailingSupplier r = new FailingSupplier();
519	<	CompletableFuture<Integer> f = CompletableFuture.supplyAsync(r);
520	<	checkCompletedWithWrappedCFException(f);
521	<	assertTrue(r.ran);
522	<	}
523	<
524	<	// seq completion methods
525	<
526	<	/**
527	<	* thenRun result completes normally after normal completion of source
528	<	*/
529	<	public void testThenRun() {
530	<	CompletableFuture<Integer> f;
531	<	CompletableFuture<Void> g;
532	<	Noop r;
533	<
534	<	f = new CompletableFuture<>();
535	<	g = f.thenRun(r = new Noop());
536	<	f.complete(null);
537	<	checkCompletedNormally(g, null);
538	<	assertTrue(r.ran);
539	<
540	<	f = new CompletableFuture<>();
541	<	f.complete(null);
542	<	g = f.thenRun(r = new Noop());
543	<	checkCompletedNormally(g, null);
544	<	assertTrue(r.ran);
545	<	}
546	<
547	<	/**
548	<	* thenRun result completes exceptionally after exceptional
549	<	* completion of source
550	<	*/
551	<	public void testThenRun2() {
552	<	CompletableFuture<Integer> f;
553	<	CompletableFuture<Void> g;
554	<	Noop r;
555	<
556	<	f = new CompletableFuture<>();
557	<	g = f.thenRun(r = new Noop());
558	<	f.completeExceptionally(new CFException());
559	<	checkCompletedWithWrappedCFException(g);
560	<	assertFalse(r.ran);
561	<
562	<	f = new CompletableFuture<>();
563	<	f.completeExceptionally(new CFException());
564	<	g = f.thenRun(r = new Noop());
565	<	checkCompletedWithWrappedCFException(g);
566	<	assertFalse(r.ran);
567	<	}
568	<
569	<	/**
570	<	* thenRun result completes exceptionally if action does
571	<	*/
572	<	public void testThenRun3() {
573	<	CompletableFuture<Integer> f;
574	<	CompletableFuture<Void> g;
575	<	FailingNoop r;
576	<
577	<	f = new CompletableFuture<>();
578	<	g = f.thenRun(r = new FailingNoop());
579	<	f.complete(null);
580	<	checkCompletedWithWrappedCFException(g);
581	<
582	<	f = new CompletableFuture<>();
583	<	f.complete(null);
584	<	g = f.thenRun(r = new FailingNoop());
585	<	checkCompletedWithWrappedCFException(g);
586	<	}
587	<
588	<	/**
589	<	* thenRun result completes exceptionally if source cancelled
590	<	*/
591	<	public void testThenRun4() {
592	<	CompletableFuture<Integer> f;
593	<	CompletableFuture<Void> g;
594	<	Noop r;
595	<
596	<	f = new CompletableFuture<>();
597	<	g = f.thenRun(r = new Noop());
598	<	assertTrue(f.cancel(true));
599	<	checkCompletedWithWrappedCancellationException(g);
600	<
601	<	f = new CompletableFuture<>();
602	<	assertTrue(f.cancel(true));
603	<	g = f.thenRun(r = new Noop());
604	<	checkCompletedWithWrappedCancellationException(g);
605	<	}
606	<
607	<	/**
608	<	* thenApply result completes normally after normal completion of source
609	<	*/
610	<	public void testThenApply() {
611	<	CompletableFuture<Integer> f = new CompletableFuture<>();
612	<	CompletableFuture<Integer> g = f.thenApply(inc);
613	<	f.complete(one);
614	<	checkCompletedNormally(g, two);
615	<	}
616	<
617	<	/**
618	<	* thenApply result completes exceptionally after exceptional
619	<	* completion of source
620	<	*/
621	<	public void testThenApply2() {
622	<	CompletableFuture<Integer> f = new CompletableFuture<>();
623	<	CompletableFuture<Integer> g = f.thenApply(inc);
624	<	f.completeExceptionally(new CFException());
625	<	checkCompletedWithWrappedCFException(g);
414	>	class IncFunction extends CheckedIntegerAction
415	>	implements Function<Integer,Integer>
416	>	{
417	>	IncFunction(ExecutionMode m) { super(m); }
418	>	public Integer apply(Integer x) {
419	>	invoked();
420	>	return value = inc(x);
421	>	}
422		}
423
424	<	/**
425	<	* thenApply result completes exceptionally if action does
426	<	*/
427	<	public void testThenApply3() {
428	<	CompletableFuture<Integer> f = new CompletableFuture<>();
429	<	CompletableFuture<Integer> g = f.thenApply(new FailingFunction());
634	<	f.complete(one);
635	<	checkCompletedWithWrappedCFException(g);
424	>	// Choose non-commutative actions for better coverage
425	>	// A non-commutative function that handles and produces null values as well.
426	>	static Integer subtract(Integer x, Integer y) {
427	>	return (x == null && y == null) ? null :
428	>	((x == null) ? 42 : x.intValue())
429	>	- ((y == null) ? 99 : y.intValue());
430		}
431
432	<	/**
433	<	* thenApply result completes exceptionally if source cancelled
434	<	*/
435	<	public void testThenApply4() {
436	<	CompletableFuture<Integer> f = new CompletableFuture<>();
437	<	CompletableFuture<Integer> g = f.thenApply(inc);
438	<	assertTrue(f.cancel(true));
439	<	checkCompletedWithWrappedCancellationException(g);
432	>	class SubtractAction extends CheckedIntegerAction
433	>	implements BiConsumer<Integer, Integer>
434	>	{
435	>	SubtractAction(ExecutionMode m) { super(m); }
436	>	public void accept(Integer x, Integer y) {
437	>	invoked();
438	>	value = subtract(x, y);
439	>	}
440		}
441
442	<	/**
443	<	* thenAccept result completes normally after normal completion of source
444	<	*/
445	<	public void testThenAccept() {
446	<	CompletableFuture<Integer> f = new CompletableFuture<>();
447	<	IncAction r = new IncAction();
448	<	CompletableFuture<Void> g = f.thenAccept(r);
449	<	f.complete(one);
656	<	checkCompletedNormally(g, null);
657	<	assertEquals(r.value, 2);
442	>	class SubtractFunction extends CheckedIntegerAction
443	>	implements BiFunction<Integer, Integer, Integer>
444	>	{
445	>	SubtractFunction(ExecutionMode m) { super(m); }
446	>	public Integer apply(Integer x, Integer y) {
447	>	invoked();
448	>	return value = subtract(x, y);
449	>	}
450		}
451
452	<	/**
453	<	* thenAccept result completes exceptionally after exceptional
454	<	* completion of source
455	<	*/
456	<	public void testThenAccept2() {
665	<	CompletableFuture<Integer> f = new CompletableFuture<>();
666	<	IncAction r = new IncAction();
667	<	CompletableFuture<Void> g = f.thenAccept(r);
668	<	f.completeExceptionally(new CFException());
669	<	checkCompletedWithWrappedCFException(g);
452	>	class Noop extends CheckedAction implements Runnable {
453	>	Noop(ExecutionMode m) { super(m); }
454	>	public void run() {
455	>	invoked();
456	>	}
457		}
458
459	<	/**
460	<	* thenAccept result completes exceptionally if action does
461	<	*/
462	<	public void testThenAccept3() {
463	<	CompletableFuture<Integer> f = new CompletableFuture<>();
464	<	FailingConsumer r = new FailingConsumer();
465	<	CompletableFuture<Void> g = f.thenAccept(r);
466	<	f.complete(one);
680	<	checkCompletedWithWrappedCFException(g);
681	<	assertTrue(r.ran);
459	>	class FailingSupplier extends CheckedAction
460	>	implements Supplier<Integer>
461	>	{
462	>	FailingSupplier(ExecutionMode m) { super(m); }
463	>	public Integer get() {
464	>	invoked();
465	>	throw new CFException();
466	>	}
467		}
468
469	<	/**
470	<	* thenAccept result completes exceptionally if source cancelled
471	<	*/
472	<	public void testThenAccept4() {
473	<	CompletableFuture<Integer> f = new CompletableFuture<>();
474	<	IncAction r = new IncAction();
475	<	CompletableFuture<Void> g = f.thenAccept(r);
476	<	assertTrue(f.cancel(true));
477	<	checkCompletedWithWrappedCancellationException(g);
469	>	class FailingConsumer extends CheckedIntegerAction
470	>	implements Consumer<Integer>
471	>	{
472	>	FailingConsumer(ExecutionMode m) { super(m); }
473	>	public void accept(Integer x) {
474	>	invoked();
475	>	value = x;
476	>	throw new CFException();
477	>	}
478		}
479
480	<	/**
481	<	* thenCombine result completes normally after normal completion
482	<	* of sources
483	<	*/
484	<	public void testThenCombine() {
485	<	CompletableFuture<Integer> f, g, h;
486	<
487	<	f = new CompletableFuture<>();
488	<	g = new CompletableFuture<>();
704	<	h = f.thenCombine(g, subtract);
705	<	f.complete(3);
706	<	checkIncomplete(h);
707	<	g.complete(1);
708	<	checkCompletedNormally(h, 2);
709	<
710	<	f = new CompletableFuture<>();
711	<	g = new CompletableFuture<>();
712	<	h = f.thenCombine(g, subtract);
713	<	g.complete(1);
714	<	checkIncomplete(h);
715	<	f.complete(3);
716	<	checkCompletedNormally(h, 2);
717	<
718	<	f = new CompletableFuture<>();
719	<	g = new CompletableFuture<>();
720	<	g.complete(1);
721	<	f.complete(3);
722	<	h = f.thenCombine(g, subtract);
723	<	checkCompletedNormally(h, 2);
480	>	class FailingBiConsumer extends CheckedIntegerAction
481	>	implements BiConsumer<Integer, Integer>
482	>	{
483	>	FailingBiConsumer(ExecutionMode m) { super(m); }
484	>	public void accept(Integer x, Integer y) {
485	>	invoked();
486	>	value = subtract(x, y);
487	>	throw new CFException();
488	>	}
489		}
490
491	<	/**
492	<	* thenCombine result completes exceptionally after exceptional
493	<	* completion of either source
494	<	*/
495	<	public void testThenCombine2() {
496	<	CompletableFuture<Integer> f, g, h;
497	<
498	<	f = new CompletableFuture<>();
499	<	g = new CompletableFuture<>();
735	<	h = f.thenCombine(g, subtract);
736	<	f.completeExceptionally(new CFException());
737	<	checkIncomplete(h);
738	<	g.complete(1);
739	<	checkCompletedWithWrappedCFException(h);
740	<
741	<	f = new CompletableFuture<>();
742	<	g = new CompletableFuture<>();
743	<	h = f.thenCombine(g, subtract);
744	<	g.completeExceptionally(new CFException());
745	<	checkIncomplete(h);
746	<	f.complete(3);
747	<	checkCompletedWithWrappedCFException(h);
748	<
749	<	f = new CompletableFuture<>();
750	<	g = new CompletableFuture<>();
751	<	f.complete(3);
752	<	g.completeExceptionally(new CFException());
753	<	h = f.thenCombine(g, subtract);
754	<	checkCompletedWithWrappedCFException(h);
755	<
756	<	f = new CompletableFuture<>();
757	<	g = new CompletableFuture<>();
758	<	f.completeExceptionally(new CFException());
759	<	g.complete(3);
760	<	h = f.thenCombine(g, subtract);
761	<	checkCompletedWithWrappedCFException(h);
491	>	class FailingFunction extends CheckedIntegerAction
492	>	implements Function<Integer, Integer>
493	>	{
494	>	FailingFunction(ExecutionMode m) { super(m); }
495	>	public Integer apply(Integer x) {
496	>	invoked();
497	>	value = x;
498	>	throw new CFException();
499	>	}
500		}
501
502	<	/**
503	<	* thenCombine result completes exceptionally if action does
504	<	*/
505	<	public void testThenCombine3() {
506	<	CompletableFuture<Integer> f = new CompletableFuture<>();
507	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
508	<	FailingBiFunction r = new FailingBiFunction();
509	<	CompletableFuture<Integer> g = f.thenCombine(f2, r);
510	<	f.complete(one);
773	<	checkIncomplete(g);
774	<	assertFalse(r.ran);
775	<	f2.complete(two);
776	<	checkCompletedWithWrappedCFException(g);
777	<	assertTrue(r.ran);
502	>	class FailingBiFunction extends CheckedIntegerAction
503	>	implements BiFunction<Integer, Integer, Integer>
504	>	{
505	>	FailingBiFunction(ExecutionMode m) { super(m); }
506	>	public Integer apply(Integer x, Integer y) {
507	>	invoked();
508	>	value = subtract(x, y);
509	>	throw new CFException();
510	>	}
511		}
512
513	<	/**
514	<	* thenCombine result completes exceptionally if either source cancelled
515	<	*/
516	<	public void testThenCombine4() {
517	<	CompletableFuture<Integer> f, g, h;
518	<
786	<	f = new CompletableFuture<>();
787	<	g = new CompletableFuture<>();
788	<	h = f.thenCombine(g, subtract);
789	<	assertTrue(f.cancel(true));
790	<	checkIncomplete(h);
791	<	g.complete(1);
792	<	checkCompletedWithWrappedCancellationException(h);
793	<
794	<	f = new CompletableFuture<>();
795	<	g = new CompletableFuture<>();
796	<	h = f.thenCombine(g, subtract);
797	<	assertTrue(g.cancel(true));
798	<	checkIncomplete(h);
799	<	f.complete(3);
800	<	checkCompletedWithWrappedCancellationException(h);
801	<
802	<	f = new CompletableFuture<>();
803	<	g = new CompletableFuture<>();
804	<	assertTrue(f.cancel(true));
805	<	assertTrue(g.cancel(true));
806	<	h = f.thenCombine(g, subtract);
807	<	checkCompletedWithWrappedCancellationException(h);
513	>	class FailingRunnable extends CheckedAction implements Runnable {
514	>	FailingRunnable(ExecutionMode m) { super(m); }
515	>	public void run() {
516	>	invoked();
517	>	throw new CFException();
518	>	}
519		}
520
521	<	/**
522	<	* thenAcceptBoth result completes normally after normal
523	<	* completion of sources
524	<	*/
525	<	public void testThenAcceptBoth() {
526	<	CompletableFuture<Integer> f, g;
527	<	CompletableFuture<Void> h;
528	<	SubtractAction r;
529	<
530	<	f = new CompletableFuture<>();
531	<	g = new CompletableFuture<>();
821	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
822	<	f.complete(3);
823	<	checkIncomplete(h);
824	<	g.complete(1);
825	<	checkCompletedNormally(h, null);
826	<	assertEquals(r.value, 2);
827	<
828	<	f = new CompletableFuture<>();
829	<	g = new CompletableFuture<>();
830	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
831	<	g.complete(1);
832	<	checkIncomplete(h);
833	<	f.complete(3);
834	<	checkCompletedNormally(h, null);
835	<	assertEquals(r.value, 2);
836	<
837	<	f = new CompletableFuture<>();
838	<	g = new CompletableFuture<>();
839	<	g.complete(1);
840	<	f.complete(3);
841	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
842	<	checkCompletedNormally(h, null);
843	<	assertEquals(r.value, 2);
521	>	class CompletableFutureInc extends CheckedIntegerAction
522	>	implements Function<Integer, CompletableFuture<Integer>>
523	>	{
524	>	CompletableFutureInc(ExecutionMode m) { super(m); }
525	>	public CompletableFuture<Integer> apply(Integer x) {
526	>	invoked();
527	>	value = x;
528	>	CompletableFuture<Integer> f = new CompletableFuture<>();
529	>	assertTrue(f.complete(inc(x)));
530	>	return f;
531	>	}
532		}
533
534	<	/**
535	<	* thenAcceptBoth result completes exceptionally after exceptional
536	<	* completion of either source
537	<	*/
538	<	public void testThenAcceptBoth2() {
539	<	CompletableFuture<Integer> f, g;
540	<	CompletableFuture<Void> h;
541	<	SubtractAction r;
542	<
855	<	f = new CompletableFuture<>();
856	<	g = new CompletableFuture<>();
857	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
858	<	f.completeExceptionally(new CFException());
859	<	checkIncomplete(h);
860	<	g.complete(1);
861	<	checkCompletedWithWrappedCFException(h);
862	<
863	<	f = new CompletableFuture<>();
864	<	g = new CompletableFuture<>();
865	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
866	<	g.completeExceptionally(new CFException());
867	<	checkIncomplete(h);
868	<	f.complete(3);
869	<	checkCompletedWithWrappedCFException(h);
870	<
871	<	f = new CompletableFuture<>();
872	<	g = new CompletableFuture<>();
873	<	f.complete(3);
874	<	g.completeExceptionally(new CFException());
875	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
876	<	checkCompletedWithWrappedCFException(h);
877	<
878	<	f = new CompletableFuture<>();
879	<	g = new CompletableFuture<>();
880	<	f.completeExceptionally(new CFException());
881	<	g.complete(3);
882	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
883	<	checkCompletedWithWrappedCFException(h);
534	>	class FailingCompletableFutureFunction extends CheckedIntegerAction
535	>	implements Function<Integer, CompletableFuture<Integer>>
536	>	{
537	>	FailingCompletableFutureFunction(ExecutionMode m) { super(m); }
538	>	public CompletableFuture<Integer> apply(Integer x) {
539	>	invoked();
540	>	value = x;
541	>	throw new CFException();
542	>	}
543		}
544
545	<	/**
546	<	* thenAcceptBoth result completes exceptionally if action does
547	<	*/
548	<	public void testThenAcceptBoth3() {
549	<	CompletableFuture<Integer> f, g;
550	<	CompletableFuture<Void> h;
551	<	FailingBiConsumer r;
893	<
894	<	f = new CompletableFuture<>();
895	<	g = new CompletableFuture<>();
896	<	h = f.thenAcceptBoth(g, r = new FailingBiConsumer());
897	<	f.complete(3);
898	<	checkIncomplete(h);
899	<	g.complete(1);
900	<	checkCompletedWithWrappedCFException(h);
545	>	// Used for explicit executor tests
546	>	static final class ThreadExecutor implements Executor {
547	>	final AtomicInteger count = new AtomicInteger(0);
548	>	static final ThreadGroup tg = new ThreadGroup("ThreadExecutor");
549	>	static boolean startedCurrentThread() {
550	>	return Thread.currentThread().getThreadGroup() == tg;
551	>	}
552
553	<	f = new CompletableFuture<>();
554	<	g = new CompletableFuture<>();
555	<	f.complete(3);
556	<	g.complete(1);
906	<	h = f.thenAcceptBoth(g, r = new FailingBiConsumer());
907	<	checkCompletedWithWrappedCFException(h);
553	>	public void execute(Runnable r) {
554	>	count.getAndIncrement();
555	>	new Thread(tg, r).start();
556	>	}
557		}
558
559	<	/**
560	<	* thenAcceptBoth result completes exceptionally if either source cancelled
912	<	*/
913	<	public void testThenAcceptBoth4() {
914	<	CompletableFuture<Integer> f, g;
915	<	CompletableFuture<Void> h;
916	<	SubtractAction r;
917	<
918	<	f = new CompletableFuture<>();
919	<	g = new CompletableFuture<>();
920	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
921	<	assertTrue(f.cancel(true));
922	<	checkIncomplete(h);
923	<	g.complete(1);
924	<	checkCompletedWithWrappedCancellationException(h);
925	<
926	<	f = new CompletableFuture<>();
927	<	g = new CompletableFuture<>();
928	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
929	<	assertTrue(g.cancel(true));
930	<	checkIncomplete(h);
931	<	f.complete(3);
932	<	checkCompletedWithWrappedCancellationException(h);
933	<
934	<	f = new CompletableFuture<>();
935	<	g = new CompletableFuture<>();
936	<	f.complete(3);
937	<	assertTrue(g.cancel(true));
938	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
939	<	checkCompletedWithWrappedCancellationException(h);
940	<
941	<	f = new CompletableFuture<>();
942	<	g = new CompletableFuture<>();
943	<	assertTrue(f.cancel(true));
944	<	g.complete(3);
945	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
946	<	checkCompletedWithWrappedCancellationException(h);
947	<	}
559	>	static final boolean defaultExecutorIsCommonPool
560	>	= ForkJoinPool.getCommonPoolParallelism() > 1;
561
562		/**
563		* Permits the testing of parallel code for the 3 different
564	<	* execution modes without repeating all the testing code.
564	>	* execution modes without copy/pasting all the test methods.
565		*/
566		enum ExecutionMode {
567	<	DEFAULT {
567	>	SYNC {
568	>	public void checkExecutionMode() {
569	>	assertFalse(ThreadExecutor.startedCurrentThread());
570	>	assertNull(ForkJoinTask.getPool());
571	>	}
572	>	public CompletableFuture<Void> runAsync(Runnable a) {
573	>	throw new UnsupportedOperationException();
574	>	}
575	>	public <U> CompletableFuture<U> supplyAsync(Supplier<U> a) {
576	>	throw new UnsupportedOperationException();
577	>	}
578	>	public <T> CompletableFuture<Void> thenRun
579	>	(CompletableFuture<T> f, Runnable a) {
580	>	return f.thenRun(a);
581	>	}
582	>	public <T> CompletableFuture<Void> thenAccept
583	>	(CompletableFuture<T> f, Consumer<? super T> a) {
584	>	return f.thenAccept(a);
585	>	}
586	>	public <T,U> CompletableFuture<U> thenApply
587	>	(CompletableFuture<T> f, Function<? super T,U> a) {
588	>	return f.thenApply(a);
589	>	}
590	>	public <T,U> CompletableFuture<U> thenCompose
591	>	(CompletableFuture<T> f,
592	>	Function<? super T,? extends CompletionStage<U>> a) {
593	>	return f.thenCompose(a);
594	>	}
595	>	public <T,U> CompletableFuture<U> handle
596	>	(CompletableFuture<T> f,
597	>	BiFunction<? super T,Throwable,? extends U> a) {
598	>	return f.handle(a);
599	>	}
600	>	public <T> CompletableFuture<T> whenComplete
601	>	(CompletableFuture<T> f,
602	>	BiConsumer<? super T,? super Throwable> a) {
603	>	return f.whenComplete(a);
604	>	}
605		public <T,U> CompletableFuture<Void> runAfterBoth
606	<	(CompletableFuture<T> f, CompletableFuture<U> g, Runnable r) {
607	<	return f.runAfterBoth(g, r);
606	>	(CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) {
607	>	return f.runAfterBoth(g, a);
608	>	}
609	>	public <T,U> CompletableFuture<Void> thenAcceptBoth
610	>	(CompletableFuture<T> f,
611	>	CompletionStage<? extends U> g,
612	>	BiConsumer<? super T,? super U> a) {
613	>	return f.thenAcceptBoth(g, a);
614	>	}
615	>	public <T,U,V> CompletableFuture<V> thenCombine
616	>	(CompletableFuture<T> f,
617	>	CompletionStage<? extends U> g,
618	>	BiFunction<? super T,? super U,? extends V> a) {
619	>	return f.thenCombine(g, a);
620	>	}
621	>	public <T> CompletableFuture<Void> runAfterEither
622	>	(CompletableFuture<T> f,
623	>	CompletionStage<?> g,
624	>	java.lang.Runnable a) {
625	>	return f.runAfterEither(g, a);
626	>	}
627	>	public <T> CompletableFuture<Void> acceptEither
628	>	(CompletableFuture<T> f,
629	>	CompletionStage<? extends T> g,
630	>	Consumer<? super T> a) {
631	>	return f.acceptEither(g, a);
632	>	}
633	>	public <T,U> CompletableFuture<U> applyToEither
634	>	(CompletableFuture<T> f,
635	>	CompletionStage<? extends T> g,
636	>	Function<? super T,U> a) {
637	>	return f.applyToEither(g, a);
638		}
639		},
640
641	<	DEFAULT_ASYNC {
641	>	ASYNC {
642	>	public void checkExecutionMode() {
643	>	assertEquals(defaultExecutorIsCommonPool,
644	>	(ForkJoinPool.commonPool() == ForkJoinTask.getPool()));
645	>	}
646	>	public CompletableFuture<Void> runAsync(Runnable a) {
647	>	return CompletableFuture.runAsync(a);
648	>	}
649	>	public <U> CompletableFuture<U> supplyAsync(Supplier<U> a) {
650	>	return CompletableFuture.supplyAsync(a);
651	>	}
652	>	public <T> CompletableFuture<Void> thenRun
653	>	(CompletableFuture<T> f, Runnable a) {
654	>	return f.thenRunAsync(a);
655	>	}
656	>	public <T> CompletableFuture<Void> thenAccept
657	>	(CompletableFuture<T> f, Consumer<? super T> a) {
658	>	return f.thenAcceptAsync(a);
659	>	}
660	>	public <T,U> CompletableFuture<U> thenApply
661	>	(CompletableFuture<T> f, Function<? super T,U> a) {
662	>	return f.thenApplyAsync(a);
663	>	}
664	>	public <T,U> CompletableFuture<U> thenCompose
665	>	(CompletableFuture<T> f,
666	>	Function<? super T,? extends CompletionStage<U>> a) {
667	>	return f.thenComposeAsync(a);
668	>	}
669	>	public <T,U> CompletableFuture<U> handle
670	>	(CompletableFuture<T> f,
671	>	BiFunction<? super T,Throwable,? extends U> a) {
672	>	return f.handleAsync(a);
673	>	}
674	>	public <T> CompletableFuture<T> whenComplete
675	>	(CompletableFuture<T> f,
676	>	BiConsumer<? super T,? super Throwable> a) {
677	>	return f.whenCompleteAsync(a);
678	>	}
679		public <T,U> CompletableFuture<Void> runAfterBoth
680	<	(CompletableFuture<T> f, CompletableFuture<U> g, Runnable r) {
681	<	return f.runAfterBothAsync(g, r);
680	>	(CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) {
681	>	return f.runAfterBothAsync(g, a);
682	>	}
683	>	public <T,U> CompletableFuture<Void> thenAcceptBoth
684	>	(CompletableFuture<T> f,
685	>	CompletionStage<? extends U> g,
686	>	BiConsumer<? super T,? super U> a) {
687	>	return f.thenAcceptBothAsync(g, a);
688	>	}
689	>	public <T,U,V> CompletableFuture<V> thenCombine
690	>	(CompletableFuture<T> f,
691	>	CompletionStage<? extends U> g,
692	>	BiFunction<? super T,? super U,? extends V> a) {
693	>	return f.thenCombineAsync(g, a);
694	>	}
695	>	public <T> CompletableFuture<Void> runAfterEither
696	>	(CompletableFuture<T> f,
697	>	CompletionStage<?> g,
698	>	java.lang.Runnable a) {
699	>	return f.runAfterEitherAsync(g, a);
700	>	}
701	>	public <T> CompletableFuture<Void> acceptEither
702	>	(CompletableFuture<T> f,
703	>	CompletionStage<? extends T> g,
704	>	Consumer<? super T> a) {
705	>	return f.acceptEitherAsync(g, a);
706	>	}
707	>	public <T,U> CompletableFuture<U> applyToEither
708	>	(CompletableFuture<T> f,
709	>	CompletionStage<? extends T> g,
710	>	Function<? super T,U> a) {
711	>	return f.applyToEitherAsync(g, a);
712		}
713		},
714
715		EXECUTOR {
716	+	public void checkExecutionMode() {
717	+	assertTrue(ThreadExecutor.startedCurrentThread());
718	+	}
719	+	public CompletableFuture<Void> runAsync(Runnable a) {
720	+	return CompletableFuture.runAsync(a, new ThreadExecutor());
721	+	}
722	+	public <U> CompletableFuture<U> supplyAsync(Supplier<U> a) {
723	+	return CompletableFuture.supplyAsync(a, new ThreadExecutor());
724	+	}
725	+	public <T> CompletableFuture<Void> thenRun
726	+	(CompletableFuture<T> f, Runnable a) {
727	+	return f.thenRunAsync(a, new ThreadExecutor());
728	+	}
729	+	public <T> CompletableFuture<Void> thenAccept
730	+	(CompletableFuture<T> f, Consumer<? super T> a) {
731	+	return f.thenAcceptAsync(a, new ThreadExecutor());
732	+	}
733	+	public <T,U> CompletableFuture<U> thenApply
734	+	(CompletableFuture<T> f, Function<? super T,U> a) {
735	+	return f.thenApplyAsync(a, new ThreadExecutor());
736	+	}
737	+	public <T,U> CompletableFuture<U> thenCompose
738	+	(CompletableFuture<T> f,
739	+	Function<? super T,? extends CompletionStage<U>> a) {
740	+	return f.thenComposeAsync(a, new ThreadExecutor());
741	+	}
742	+	public <T,U> CompletableFuture<U> handle
743	+	(CompletableFuture<T> f,
744	+	BiFunction<? super T,Throwable,? extends U> a) {
745	+	return f.handleAsync(a, new ThreadExecutor());
746	+	}
747	+	public <T> CompletableFuture<T> whenComplete
748	+	(CompletableFuture<T> f,
749	+	BiConsumer<? super T,? super Throwable> a) {
750	+	return f.whenCompleteAsync(a, new ThreadExecutor());
751	+	}
752		public <T,U> CompletableFuture<Void> runAfterBoth
753	<	(CompletableFuture<T> f, CompletableFuture<U> g, Runnable r) {
754	<	return f.runAfterBothAsync(g, r, new ThreadExecutor());
753	>	(CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) {
754	>	return f.runAfterBothAsync(g, a, new ThreadExecutor());
755	>	}
756	>	public <T,U> CompletableFuture<Void> thenAcceptBoth
757	>	(CompletableFuture<T> f,
758	>	CompletionStage<? extends U> g,
759	>	BiConsumer<? super T,? super U> a) {
760	>	return f.thenAcceptBothAsync(g, a, new ThreadExecutor());
761	>	}
762	>	public <T,U,V> CompletableFuture<V> thenCombine
763	>	(CompletableFuture<T> f,
764	>	CompletionStage<? extends U> g,
765	>	BiFunction<? super T,? super U,? extends V> a) {
766	>	return f.thenCombineAsync(g, a, new ThreadExecutor());
767	>	}
768	>	public <T> CompletableFuture<Void> runAfterEither
769	>	(CompletableFuture<T> f,
770	>	CompletionStage<?> g,
771	>	java.lang.Runnable a) {
772	>	return f.runAfterEitherAsync(g, a, new ThreadExecutor());
773	>	}
774	>	public <T> CompletableFuture<Void> acceptEither
775	>	(CompletableFuture<T> f,
776	>	CompletionStage<? extends T> g,
777	>	Consumer<? super T> a) {
778	>	return f.acceptEitherAsync(g, a, new ThreadExecutor());
779	>	}
780	>	public <T,U> CompletableFuture<U> applyToEither
781	>	(CompletableFuture<T> f,
782	>	CompletionStage<? extends T> g,
783	>	Function<? super T,U> a) {
784	>	return f.applyToEitherAsync(g, a, new ThreadExecutor());
785		}
786		};
787
788	+	public abstract void checkExecutionMode();
789	+	public abstract CompletableFuture<Void> runAsync(Runnable a);
790	+	public abstract <U> CompletableFuture<U> supplyAsync(Supplier<U> a);
791	+	public abstract <T> CompletableFuture<Void> thenRun
792	+	(CompletableFuture<T> f, Runnable a);
793	+	public abstract <T> CompletableFuture<Void> thenAccept
794	+	(CompletableFuture<T> f, Consumer<? super T> a);
795	+	public abstract <T,U> CompletableFuture<U> thenApply
796	+	(CompletableFuture<T> f, Function<? super T,U> a);
797	+	public abstract <T,U> CompletableFuture<U> thenCompose
798	+	(CompletableFuture<T> f,
799	+	Function<? super T,? extends CompletionStage<U>> a);
800	+	public abstract <T,U> CompletableFuture<U> handle
801	+	(CompletableFuture<T> f,
802	+	BiFunction<? super T,Throwable,? extends U> a);
803	+	public abstract <T> CompletableFuture<T> whenComplete
804	+	(CompletableFuture<T> f,
805	+	BiConsumer<? super T,? super Throwable> a);
806		public abstract <T,U> CompletableFuture<Void> runAfterBoth
807	<	(CompletableFuture<T> f, CompletableFuture<U> g, Runnable r);
807	>	(CompletableFuture<T> f, CompletableFuture<U> g, Runnable a);
808	>	public abstract <T,U> CompletableFuture<Void> thenAcceptBoth
809	>	(CompletableFuture<T> f,
810	>	CompletionStage<? extends U> g,
811	>	BiConsumer<? super T,? super U> a);
812	>	public abstract <T,U,V> CompletableFuture<V> thenCombine
813	>	(CompletableFuture<T> f,
814	>	CompletionStage<? extends U> g,
815	>	BiFunction<? super T,? super U,? extends V> a);
816	>	public abstract <T> CompletableFuture<Void> runAfterEither
817	>	(CompletableFuture<T> f,
818	>	CompletionStage<?> g,
819	>	java.lang.Runnable a);
820	>	public abstract <T> CompletableFuture<Void> acceptEither
821	>	(CompletableFuture<T> f,
822	>	CompletionStage<? extends T> g,
823	>	Consumer<? super T> a);
824	>	public abstract <T,U> CompletableFuture<U> applyToEither
825	>	(CompletableFuture<T> f,
826	>	CompletionStage<? extends T> g,
827	>	Function<? super T,U> a);
828		}
829
830		/**
831	<	* runAfterBoth result completes normally after normal
832	<	* completion of sources
831	>	* exceptionally action is not invoked when source completes
832	>	* normally, and source result is propagated
833		*/
834	<	public void testRunAfterBoth_normalCompletion1() {
835	<	for (ExecutionMode m : ExecutionMode.values())
834	>	public void testExceptionally_normalCompletion() {
835	>	for (boolean createIncomplete : new boolean[] { true, false })
836		for (Integer v1 : new Integer[] { 1, null })
837	<	for (Integer v2 : new Integer[] { 2, null }) {
838	<
837	>	{
838	>	final AtomicInteger a = new AtomicInteger(0);
839		final CompletableFuture<Integer> f = new CompletableFuture<>();
840	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
841	<	final Noop r = new Noop();
842	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
843	<
844	<	f.complete(v1);
845	<	checkIncomplete(h);
846	<	assertFalse(r.ran);
847	<	g.complete(v2);
840	>	if (!createIncomplete) assertTrue(f.complete(v1));
841	>	final CompletableFuture<Integer> g = f.exceptionally
842	>	((Throwable t) -> {
843	>	a.getAndIncrement();
844	>	threadFail("should not be called");
845	>	return null;            // unreached
846	>	});
847	>	if (createIncomplete) assertTrue(f.complete(v1));
848
849	<	checkCompletedNormally(h, null);
999	<	assertTrue(r.ran);
849	>	checkCompletedNormally(g, v1);
850		checkCompletedNormally(f, v1);
851	<	checkCompletedNormally(g, v2);
852	<	}
1003	<	}
851	>	assertEquals(0, a.get());
852	>	}}
853
854	<	public void testRunAfterBoth_normalCompletion2() {
855	<	for (ExecutionMode m : ExecutionMode.values())
854	>	/**
855	>	* exceptionally action completes with function value on source
856	>	* exception
857	>	*/
858	>	public void testExceptionally_exceptionalCompletion() {
859	>	for (boolean createIncomplete : new boolean[] { true, false })
860		for (Integer v1 : new Integer[] { 1, null })
861	<	for (Integer v2 : new Integer[] { 2, null }) {
862	<
861	>	{
862	>	final AtomicInteger a = new AtomicInteger(0);
863	>	final CFException ex = new CFException();
864		final CompletableFuture<Integer> f = new CompletableFuture<>();
865	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
866	<	final Noop r = new Noop();
867	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
868	<
869	<	g.complete(v2);
870	<	checkIncomplete(h);
871	<	assertFalse(r.ran);
872	<	f.complete(v1);
873	<
1020	<	checkCompletedNormally(h, null);
1021	<	assertTrue(r.ran);
1022	<	checkCompletedNormally(f, v1);
1023	<	checkCompletedNormally(g, v2);
1024	<	}
1025	<	}
865	>	if (!createIncomplete) f.completeExceptionally(ex);
866	>	final CompletableFuture<Integer> g = f.exceptionally
867	>	((Throwable t) -> {
868	>	ExecutionMode.SYNC.checkExecutionMode();
869	>	threadAssertSame(t, ex);
870	>	a.getAndIncrement();
871	>	return v1;
872	>	});
873	>	if (createIncomplete) f.completeExceptionally(ex);
874
875	<	public void testRunAfterBoth_normalCompletion3() {
876	<	for (ExecutionMode m : ExecutionMode.values())
877	<	for (Integer v1 : new Integer[] { 1, null })
1030	<	for (Integer v2 : new Integer[] { 2, null }) {
875	>	checkCompletedNormally(g, v1);
876	>	assertEquals(1, a.get());
877	>	}}
878
879	+	/**
880	+	* If an "exceptionally action" throws an exception, it completes
881	+	* exceptionally with that exception
882	+	*/
883	+	public void testExceptionally_exceptionalCompletionActionFailed() {
884	+	for (boolean createIncomplete : new boolean[] { true, false })
885	+	{
886	+	final AtomicInteger a = new AtomicInteger(0);
887	+	final CFException ex1 = new CFException();
888	+	final CFException ex2 = new CFException();
889		final CompletableFuture<Integer> f = new CompletableFuture<>();
890	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
891	<	final Noop r = new Noop();
892	<
893	<	g.complete(v2);
894	<	f.complete(v1);
895	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
896	<
897	<	checkCompletedNormally(h, null);
898	<	assertTrue(r.ran);
899	<	checkCompletedNormally(f, v1);
900	<	checkCompletedNormally(g, v2);
901	<	}
902	<	}
890	>	if (!createIncomplete) f.completeExceptionally(ex1);
891	>	final CompletableFuture<Integer> g = f.exceptionally
892	>	((Throwable t) -> {
893	>	ExecutionMode.SYNC.checkExecutionMode();
894	>	threadAssertSame(t, ex1);
895	>	a.getAndIncrement();
896	>	throw ex2;
897	>	});
898	>	if (createIncomplete) f.completeExceptionally(ex1);
899	>
900	>	checkCompletedWithWrappedException(g, ex2);
901	>	checkCompletedExceptionally(f, ex1);
902	>	assertEquals(1, a.get());
903	>	}}
904
905	<	public void testRunAfterBoth_normalCompletion4() {
905	>	/**
906	>	* whenComplete action executes on normal completion, propagating
907	>	* source result.
908	>	*/
909	>	public void testWhenComplete_normalCompletion() {
910		for (ExecutionMode m : ExecutionMode.values())
911	+	for (boolean createIncomplete : new boolean[] { true, false })
912		for (Integer v1 : new Integer[] { 1, null })
913	<	for (Integer v2 : new Integer[] { 2, null }) {
914	<
913	>	{
914	>	final AtomicInteger a = new AtomicInteger(0);
915		final CompletableFuture<Integer> f = new CompletableFuture<>();
916	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
917	<	final Noop r = new Noop();
916	>	if (!createIncomplete) assertTrue(f.complete(v1));
917	>	final CompletableFuture<Integer> g = m.whenComplete
918	>	(f,
919	>	(Integer result, Throwable t) -> {
920	>	m.checkExecutionMode();
921	>	threadAssertSame(result, v1);
922	>	threadAssertNull(t);
923	>	a.getAndIncrement();
924	>	});
925	>	if (createIncomplete) assertTrue(f.complete(v1));
926
927	<	f.complete(v1);
1057	<	g.complete(v2);
1058	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1059	<
1060	<	checkCompletedNormally(h, null);
1061	<	assertTrue(r.ran);
927	>	checkCompletedNormally(g, v1);
928		checkCompletedNormally(f, v1);
929	<	checkCompletedNormally(g, v2);
930	<	}
1065	<	}
929	>	assertEquals(1, a.get());
930	>	}}
931
932		/**
933	<	* runAfterBoth result completes exceptionally after exceptional
934	<	* completion of either source
933	>	* whenComplete action executes on exceptional completion, propagating
934	>	* source result.
935		*/
936	<	public void testRunAfterBoth_exceptionalCompletion1() {
936	>	public void testWhenComplete_exceptionalCompletion() {
937		for (ExecutionMode m : ExecutionMode.values())
938	<	for (Integer v1 : new Integer[] { 1, null }) {
939	<
940	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
1076	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
1077	<	final Noop r = new Noop();
1078	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
938	>	for (boolean createIncomplete : new boolean[] { true, false })
939	>	{
940	>	final AtomicInteger a = new AtomicInteger(0);
941		final CFException ex = new CFException();
942	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
943	+	if (!createIncomplete) f.completeExceptionally(ex);
944	+	final CompletableFuture<Integer> g = m.whenComplete
945	+	(f,
946	+	(Integer result, Throwable t) -> {
947	+	m.checkExecutionMode();
948	+	threadAssertNull(result);
949	+	threadAssertSame(t, ex);
950	+	a.getAndIncrement();
951	+	});
952	+	if (createIncomplete) f.completeExceptionally(ex);
953	+
954	+	checkCompletedWithWrappedException(g, ex);
955	+	checkCompletedExceptionally(f, ex);
956	+	assertEquals(1, a.get());
957	+	}}
958
959	<	f.completeExceptionally(ex);
960	<	checkIncomplete(h);
961	<	g.complete(v1);
962	<
963	<	checkCompletedWithWrappedCFException(h, ex);
1086	<	checkCompletedWithWrappedCFException(f, ex);
1087	<	assertFalse(r.ran);
1088	<	checkCompletedNormally(g, v1);
1089	<	}
1090	<	}
1091	<
1092	<	public void testRunAfterBoth_exceptionalCompletion2() {
959	>	/**
960	>	* whenComplete action executes on cancelled source, propagating
961	>	* CancellationException.
962	>	*/
963	>	public void testWhenComplete_sourceCancelled() {
964		for (ExecutionMode m : ExecutionMode.values())
965	<	for (Integer v1 : new Integer[] { 1, null }) {
966	<
965	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
966	>	for (boolean createIncomplete : new boolean[] { true, false })
967	>	{
968	>	final AtomicInteger a = new AtomicInteger(0);
969		final CompletableFuture<Integer> f = new CompletableFuture<>();
970	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
971	<	final Noop r = new Noop();
972	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
973	<	final CFException ex = new CFException();
970	>	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
971	>	final CompletableFuture<Integer> g = m.whenComplete
972	>	(f,
973	>	(Integer result, Throwable t) -> {
974	>	m.checkExecutionMode();
975	>	threadAssertNull(result);
976	>	threadAssertTrue(t instanceof CancellationException);
977	>	a.getAndIncrement();
978	>	});
979	>	if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
980
981	<	g.completeExceptionally(ex);
982	<	checkIncomplete(h);
983	<	f.complete(v1);
984	<
1106	<	checkCompletedWithWrappedCFException(h, ex);
1107	<	checkCompletedWithWrappedCFException(g, ex);
1108	<	assertFalse(r.ran);
1109	<	checkCompletedNormally(f, v1);
1110	<	}
1111	<	}
981	>	checkCompletedWithWrappedCancellationException(g);
982	>	checkCancelled(f);
983	>	assertEquals(1, a.get());
984	>	}}
985
986	<	public void testRunAfterBoth_exceptionalCompletion3() {
986	>	/**
987	>	* If a whenComplete action throws an exception when triggered by
988	>	* a normal completion, it completes exceptionally
989	>	*/
990	>	public void testWhenComplete_sourceCompletedNormallyActionFailed() {
991	>	for (boolean createIncomplete : new boolean[] { true, false })
992		for (ExecutionMode m : ExecutionMode.values())
993	<	for (Integer v1 : new Integer[] { 1, null }) {
994	<
995	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
1118	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
1119	<	final Noop r = new Noop();
993	>	for (Integer v1 : new Integer[] { 1, null })
994	>	{
995	>	final AtomicInteger a = new AtomicInteger(0);
996		final CFException ex = new CFException();
997	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
998	+	if (!createIncomplete) assertTrue(f.complete(v1));
999	+	final CompletableFuture<Integer> g = m.whenComplete
1000	+	(f,
1001	+	(Integer result, Throwable t) -> {
1002	+	m.checkExecutionMode();
1003	+	threadAssertSame(result, v1);
1004	+	threadAssertNull(t);
1005	+	a.getAndIncrement();
1006	+	throw ex;
1007	+	});
1008	+	if (createIncomplete) assertTrue(f.complete(v1));
1009
1010	<	g.completeExceptionally(ex);
1123	<	f.complete(v1);
1124	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1125	<
1126	<	checkCompletedWithWrappedCFException(h, ex);
1127	<	checkCompletedWithWrappedCFException(g, ex);
1128	<	assertFalse(r.ran);
1010	>	checkCompletedWithWrappedException(g, ex);
1011		checkCompletedNormally(f, v1);
1012	<	}
1013	<	}
1012	>	assertEquals(1, a.get());
1013	>	}}
1014
1015	<	public void testRunAfterBoth_exceptionalCompletion4() {
1015	>	/**
1016	>	* If a whenComplete action throws an exception when triggered by
1017	>	* a source completion that also throws an exception, the source
1018	>	* exception takes precedence (unlike handle)
1019	>	*/
1020	>	public void testWhenComplete_sourceFailedActionFailed() {
1021	>	for (boolean createIncomplete : new boolean[] { true, false })
1022		for (ExecutionMode m : ExecutionMode.values())
1023	<	for (Integer v1 : new Integer[] { 1, null }) {
1024	<
1023	>	{
1024	>	final AtomicInteger a = new AtomicInteger(0);
1025	>	final CFException ex1 = new CFException();
1026	>	final CFException ex2 = new CFException();
1027		final CompletableFuture<Integer> f = new CompletableFuture<>();
1138	–	final CompletableFuture<Integer> g = new CompletableFuture<>();
1139	–	final Noop r = new Noop();
1140	–	final CFException ex = new CFException();
1028
1029	<	f.completeExceptionally(ex);
1030	<	g.complete(v1);
1031	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1032	<
1033	<	checkCompletedWithWrappedCFException(h, ex);
1034	<	checkCompletedWithWrappedCFException(f, ex);
1035	<	assertFalse(r.ran);
1036	<	checkCompletedNormally(g, v1);
1037	<	}
1038	<	}
1029	>	if (!createIncomplete) f.completeExceptionally(ex1);
1030	>	final CompletableFuture<Integer> g = m.whenComplete
1031	>	(f,
1032	>	(Integer result, Throwable t) -> {
1033	>	m.checkExecutionMode();
1034	>	threadAssertSame(t, ex1);
1035	>	threadAssertNull(result);
1036	>	a.getAndIncrement();
1037	>	throw ex2;
1038	>	});
1039	>	if (createIncomplete) f.completeExceptionally(ex1);
1040	>
1041	>	checkCompletedWithWrappedException(g, ex1);
1042	>	checkCompletedExceptionally(f, ex1);
1043	>	assertEquals(1, a.get());
1044	>	}}
1045
1046		/**
1047	<	* runAfterBoth result completes exceptionally if action does
1047	>	* handle action completes normally with function value on normal
1048	>	* completion of source
1049		*/
1050	<	public void testRunAfterBoth_actionFailed1() {
1050	>	public void testHandle_normalCompletion() {
1051		for (ExecutionMode m : ExecutionMode.values())
1052	+	for (boolean createIncomplete : new boolean[] { true, false })
1053		for (Integer v1 : new Integer[] { 1, null })
1054	<	for (Integer v2 : new Integer[] { 2, null }) {
1160	<
1054	>	{
1055		final CompletableFuture<Integer> f = new CompletableFuture<>();
1056	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
1057	<	final FailingNoop r = new FailingNoop();
1058	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1056	>	final AtomicInteger a = new AtomicInteger(0);
1057	>	if (!createIncomplete) assertTrue(f.complete(v1));
1058	>	final CompletableFuture<Integer> g = m.handle
1059	>	(f,
1060	>	(Integer result, Throwable t) -> {
1061	>	m.checkExecutionMode();
1062	>	threadAssertSame(result, v1);
1063	>	threadAssertNull(t);
1064	>	a.getAndIncrement();
1065	>	return inc(v1);
1066	>	});
1067	>	if (createIncomplete) assertTrue(f.complete(v1));
1068
1069	<	f.complete(v1);
1167	<	checkIncomplete(h);
1168	<	g.complete(v2);
1169	<
1170	<	checkCompletedWithWrappedCFException(h);
1069	>	checkCompletedNormally(g, inc(v1));
1070		checkCompletedNormally(f, v1);
1071	<	checkCompletedNormally(g, v2);
1072	<	}
1174	<	}
1071	>	assertEquals(1, a.get());
1072	>	}}
1073
1074	<	public void testRunAfterBoth_actionFailed2() {
1074	>	/**
1075	>	* handle action completes normally with function value on
1076	>	* exceptional completion of source
1077	>	*/
1078	>	public void testHandle_exceptionalCompletion() {
1079		for (ExecutionMode m : ExecutionMode.values())
1080	+	for (boolean createIncomplete : new boolean[] { true, false })
1081		for (Integer v1 : new Integer[] { 1, null })
1082	<	for (Integer v2 : new Integer[] { 2, null }) {
1180	<
1082	>	{
1083		final CompletableFuture<Integer> f = new CompletableFuture<>();
1084	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
1085	<	final FailingNoop r = new FailingNoop();
1086	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1087	<
1088	<	g.complete(v2);
1089	<	checkIncomplete(h);
1090	<	f.complete(v1);
1084	>	final AtomicInteger a = new AtomicInteger(0);
1085	>	final CFException ex = new CFException();
1086	>	if (!createIncomplete) f.completeExceptionally(ex);
1087	>	final CompletableFuture<Integer> g = m.handle
1088	>	(f,
1089	>	(Integer result, Throwable t) -> {
1090	>	m.checkExecutionMode();
1091	>	threadAssertNull(result);
1092	>	threadAssertSame(t, ex);
1093	>	a.getAndIncrement();
1094	>	return v1;
1095	>	});
1096	>	if (createIncomplete) f.completeExceptionally(ex);
1097
1098	<	checkCompletedWithWrappedCFException(h);
1099	<	checkCompletedNormally(f, v1);
1100	<	checkCompletedNormally(g, v2);
1101	<	}
1194	<	}
1098	>	checkCompletedNormally(g, v1);
1099	>	checkCompletedExceptionally(f, ex);
1100	>	assertEquals(1, a.get());
1101	>	}}
1102
1103		/**
1104	<	* runAfterBoth result completes exceptionally if either source cancelled
1104	>	* handle action completes normally with function value on
1105	>	* cancelled source
1106		*/
1107	<	public void testRunAfterBoth_sourceCancelled1() {
1107	>	public void testHandle_sourceCancelled() {
1108		for (ExecutionMode m : ExecutionMode.values())
1109		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1110	<	for (Integer v1 : new Integer[] { 1, null }) {
1111	<
1110	>	for (boolean createIncomplete : new boolean[] { true, false })
1111	>	for (Integer v1 : new Integer[] { 1, null })
1112	>	{
1113		final CompletableFuture<Integer> f = new CompletableFuture<>();
1114	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
1115	<	final Noop r = new Noop();
1116	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1114	>	final AtomicInteger a = new AtomicInteger(0);
1115	>	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1116	>	final CompletableFuture<Integer> g = m.handle
1117	>	(f,
1118	>	(Integer result, Throwable t) -> {
1119	>	m.checkExecutionMode();
1120	>	threadAssertNull(result);
1121	>	threadAssertTrue(t instanceof CancellationException);
1122	>	a.getAndIncrement();
1123	>	return v1;
1124	>	});
1125	>	if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1126
1209	–	assertTrue(f.cancel(mayInterruptIfRunning));
1210	–	checkIncomplete(h);
1211	–	g.complete(v1);
1212	–
1213	–	checkCompletedWithWrappedCancellationException(h);
1214	–	checkCancelled(f);
1215	–	assertFalse(r.ran);
1127		checkCompletedNormally(g, v1);
1217	–	}
1218	–	}
1219	–
1220	–	public void testRunAfterBoth_sourceCancelled2() {
1221	–	for (ExecutionMode m : ExecutionMode.values())
1222	–	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1223	–	for (Integer v1 : new Integer[] { 1, null }) {
1224	–
1225	–	final CompletableFuture<Integer> f = new CompletableFuture<>();
1226	–	final CompletableFuture<Integer> g = new CompletableFuture<>();
1227	–	final Noop r = new Noop();
1228	–	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1229	–
1230	–	assertTrue(g.cancel(mayInterruptIfRunning));
1231	–	checkIncomplete(h);
1232	–	f.complete(v1);
1233	–
1234	–	checkCompletedWithWrappedCancellationException(h);
1235	–	checkCancelled(g);
1236	–	assertFalse(r.ran);
1237	–	checkCompletedNormally(f, v1);
1238	–	}
1239	–	}
1240	–
1241	–	public void testRunAfterBoth_sourceCancelled3() {
1242	–	for (ExecutionMode m : ExecutionMode.values())
1243	–	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1244	–	for (Integer v1 : new Integer[] { 1, null }) {
1245	–
1246	–	final CompletableFuture<Integer> f = new CompletableFuture<>();
1247	–	final CompletableFuture<Integer> g = new CompletableFuture<>();
1248	–	final Noop r = new Noop();
1249	–
1250	–	assertTrue(g.cancel(mayInterruptIfRunning));
1251	–	f.complete(v1);
1252	–	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1253	–
1254	–	checkCompletedWithWrappedCancellationException(h);
1255	–	checkCancelled(g);
1256	–	assertFalse(r.ran);
1257	–	checkCompletedNormally(f, v1);
1258	–	}
1259	–	}
1260	–
1261	–	public void testRunAfterBoth_sourceCancelled4() {
1262	–	for (ExecutionMode m : ExecutionMode.values())
1263	–	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1264	–	for (Integer v1 : new Integer[] { 1, null }) {
1265	–
1266	–	final CompletableFuture<Integer> f = new CompletableFuture<>();
1267	–	final CompletableFuture<Integer> g = new CompletableFuture<>();
1268	–	final Noop r = new Noop();
1269	–
1270	–	assertTrue(f.cancel(mayInterruptIfRunning));
1271	–	g.complete(v1);
1272	–	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1273	–
1274	–	checkCompletedWithWrappedCancellationException(h);
1128		checkCancelled(f);
1129	<	assertFalse(r.ran);
1130	<	checkCompletedNormally(g, v1);
1278	<	}
1279	<	}
1129	>	assertEquals(1, a.get());
1130	>	}}
1131
1132		/**
1133	<	* applyToEither result completes normally after normal completion
1134	<	* of either source
1133	>	* If a "handle action" throws an exception when triggered by
1134	>	* a normal completion, it completes exceptionally
1135		*/
1136	<	public void testApplyToEither() {
1137	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1138	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1139	<	CompletableFuture<Integer> g = f.applyToEither(f2, inc);
1140	<	f.complete(one);
1141	<	checkCompletedNormally(g, two);
1142	<	f2.complete(one);
1143	<	checkCompletedNormally(g, two);
1136	>	public void testHandle_sourceCompletedNormallyActionFailed() {
1137	>	for (ExecutionMode m : ExecutionMode.values())
1138	>	for (boolean createIncomplete : new boolean[] { true, false })
1139	>	for (Integer v1 : new Integer[] { 1, null })
1140	>	{
1141	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1142	>	final AtomicInteger a = new AtomicInteger(0);
1143	>	final CFException ex = new CFException();
1144	>	if (!createIncomplete) assertTrue(f.complete(v1));
1145	>	final CompletableFuture<Integer> g = m.handle
1146	>	(f,
1147	>	(Integer result, Throwable t) -> {
1148	>	m.checkExecutionMode();
1149	>	threadAssertSame(result, v1);
1150	>	threadAssertNull(t);
1151	>	a.getAndIncrement();
1152	>	throw ex;
1153	>	});
1154	>	if (createIncomplete) assertTrue(f.complete(v1));
1155
1156	<	f = new CompletableFuture<>();
1157	<	f.complete(one);
1158	<	f2 = new CompletableFuture<>();
1159	<	g = f.applyToEither(f2, inc);
1298	<	checkCompletedNormally(g, two);
1299	<	}
1156	>	checkCompletedWithWrappedException(g, ex);
1157	>	checkCompletedNormally(f, v1);
1158	>	assertEquals(1, a.get());
1159	>	}}
1160
1161		/**
1162	<	* applyToEither result completes exceptionally after exceptional
1163	<	* completion of either source
1162	>	* If a "handle action" throws an exception when triggered by
1163	>	* a source completion that also throws an exception, the action
1164	>	* exception takes precedence (unlike whenComplete)
1165		*/
1166	<	public void testApplyToEither2() {
1167	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1168	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1169	<	CompletableFuture<Integer> g = f.applyToEither(f2, inc);
1170	<	f.completeExceptionally(new CFException());
1171	<	f2.complete(one);
1172	<	checkCompletedWithWrappedCFException(g);
1166	>	public void testHandle_sourceFailedActionFailed() {
1167	>	for (boolean createIncomplete : new boolean[] { true, false })
1168	>	for (ExecutionMode m : ExecutionMode.values())
1169	>	{
1170	>	final AtomicInteger a = new AtomicInteger(0);
1171	>	final CFException ex1 = new CFException();
1172	>	final CFException ex2 = new CFException();
1173	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1174
1175	<	f = new CompletableFuture<>();
1176	<	f2 = new CompletableFuture<>();
1177	<	f2.completeExceptionally(new CFException());
1178	<	g = f.applyToEither(f2, inc);
1179	<	checkCompletedWithWrappedCFException(g);
1180	<	}
1175	>	if (!createIncomplete) f.completeExceptionally(ex1);
1176	>	final CompletableFuture<Integer> g = m.handle
1177	>	(f,
1178	>	(Integer result, Throwable t) -> {
1179	>	m.checkExecutionMode();
1180	>	threadAssertNull(result);
1181	>	threadAssertSame(ex1, t);
1182	>	a.getAndIncrement();
1183	>	throw ex2;
1184	>	});
1185	>	if (createIncomplete) f.completeExceptionally(ex1);
1186	>
1187	>	checkCompletedWithWrappedException(g, ex2);
1188	>	checkCompletedExceptionally(f, ex1);
1189	>	assertEquals(1, a.get());
1190	>	}}
1191
1192		/**
1193	<	* applyToEither result completes exceptionally if action does
1193	>	* runAsync completes after running Runnable
1194		*/
1195	<	public void testApplyToEither3() {
1196	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1197	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1198	<	FailingFunction r = new FailingFunction();
1199	<	CompletableFuture<Integer> g = f.applyToEither(f2, r);
1200	<	f2.complete(two);
1201	<	checkCompletedWithWrappedCFException(g);
1202	<	}
1195	>	public void testRunAsync_normalCompletion() {
1196	>	ExecutionMode[] executionModes = {
1197	>	ExecutionMode.ASYNC,
1198	>	ExecutionMode.EXECUTOR,
1199	>	};
1200	>	for (ExecutionMode m : executionModes)
1201	>	{
1202	>	final Noop r = new Noop(m);
1203	>	final CompletableFuture<Void> f = m.runAsync(r);
1204	>	assertNull(f.join());
1205	>	checkCompletedNormally(f, null);
1206	>	r.assertInvoked();
1207	>	}}
1208
1209		/**
1210	<	* applyToEither result completes exceptionally if either source cancelled
1210	>	* failing runAsync completes exceptionally after running Runnable
1211		*/
1212	<	public void testApplyToEither4() {
1213	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1214	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1215	<	CompletableFuture<Integer> g = f.applyToEither(f2, inc);
1216	<	assertTrue(f.cancel(true));
1217	<	checkCompletedWithWrappedCancellationException(g);
1218	<	f = new CompletableFuture<>();
1219	<	f2 = new CompletableFuture<>();
1220	<	assertTrue(f2.cancel(true));
1221	<	checkCompletedWithWrappedCancellationException(g);
1222	<	}
1212	>	public void testRunAsync_exceptionalCompletion() {
1213	>	ExecutionMode[] executionModes = {
1214	>	ExecutionMode.ASYNC,
1215	>	ExecutionMode.EXECUTOR,
1216	>	};
1217	>	for (ExecutionMode m : executionModes)
1218	>	{
1219	>	final FailingRunnable r = new FailingRunnable(m);
1220	>	final CompletableFuture<Void> f = m.runAsync(r);
1221	>	checkCompletedWithWrappedCFException(f);
1222	>	r.assertInvoked();
1223	>	}}
1224
1225		/**
1226	<	* acceptEither result completes normally after normal completion
1349	<	* of either source
1226	>	* supplyAsync completes with result of supplier
1227		*/
1228	<	public void testAcceptEither() {
1229	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1230	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1231	<	IncAction r = new IncAction();
1232	<	CompletableFuture<Void> g = f.acceptEither(f2, r);
1233	<	f.complete(one);
1234	<	checkCompletedNormally(g, null);
1235	<	f2.complete(one);
1236	<	checkCompletedNormally(g, null);
1237	<	assertEquals(r.value, 2);
1238	<
1239	<	r = new IncAction();
1240	<	f = new CompletableFuture<>();
1241	<	f.complete(one);
1365	<	f2 = new CompletableFuture<>();
1366	<	g = f.acceptEither(f2, r);
1367	<	checkCompletedNormally(g, null);
1368	<	assertEquals(r.value, 2);
1369	<	}
1228	>	public void testSupplyAsync_normalCompletion() {
1229	>	ExecutionMode[] executionModes = {
1230	>	ExecutionMode.ASYNC,
1231	>	ExecutionMode.EXECUTOR,
1232	>	};
1233	>	for (ExecutionMode m : executionModes)
1234	>	for (Integer v1 : new Integer[] { 1, null })
1235	>	{
1236	>	final IntegerSupplier r = new IntegerSupplier(m, v1);
1237	>	final CompletableFuture<Integer> f = m.supplyAsync(r);
1238	>	assertSame(v1, f.join());
1239	>	checkCompletedNormally(f, v1);
1240	>	r.assertInvoked();
1241	>	}}
1242
1243		/**
1244	<	* acceptEither result completes exceptionally after exceptional
1373	<	* completion of either source
1244	>	* Failing supplyAsync completes exceptionally
1245		*/
1246	<	public void testAcceptEither2() {
1247	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1248	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1249	<	IncAction r = new IncAction();
1250	<	CompletableFuture<Void> g = f.acceptEither(f2, r);
1251	<	f.completeExceptionally(new CFException());
1252	<	f2.complete(one);
1253	<	checkCompletedWithWrappedCFException(g);
1246	>	public void testSupplyAsync_exceptionalCompletion() {
1247	>	ExecutionMode[] executionModes = {
1248	>	ExecutionMode.ASYNC,
1249	>	ExecutionMode.EXECUTOR,
1250	>	};
1251	>	for (ExecutionMode m : executionModes)
1252	>	{
1253	>	FailingSupplier r = new FailingSupplier(m);
1254	>	CompletableFuture<Integer> f = m.supplyAsync(r);
1255	>	checkCompletedWithWrappedCFException(f);
1256	>	r.assertInvoked();
1257	>	}}
1258
1259	<	r = new IncAction();
1385	<	f = new CompletableFuture<>();
1386	<	f2 = new CompletableFuture<>();
1387	<	f2.completeExceptionally(new CFException());
1388	<	g = f.acceptEither(f2, r);
1389	<	checkCompletedWithWrappedCFException(g);
1390	<	}
1259	>	// seq completion methods
1260
1261		/**
1262	<	* acceptEither result completes exceptionally if action does
1262	>	* thenRun result completes normally after normal completion of source
1263		*/
1264	<	public void testAcceptEither3() {
1265	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1266	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1267	<	FailingConsumer r = new FailingConsumer();
1268	<	CompletableFuture<Void> g = f.acceptEither(f2, r);
1269	<	f2.complete(two);
1270	<	checkCompletedWithWrappedCFException(g);
1402	<	}
1264	>	public void testThenRun_normalCompletion() {
1265	>	for (ExecutionMode m : ExecutionMode.values())
1266	>	for (Integer v1 : new Integer[] { 1, null })
1267	>	{
1268	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1269	>	final Noop[] rs = new Noop[6];
1270	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1271
1272	<	/**
1273	<	* acceptEither result completes exceptionally if either source cancelled
1274	<	*/
1275	<	public void testAcceptEither4() {
1276	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1277	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1278	<	IncAction r = new IncAction();
1279	<	CompletableFuture<Void> g = f.acceptEither(f2, r);
1280	<	assertTrue(f.cancel(true));
1281	<	checkCompletedWithWrappedCancellationException(g);
1282	<	f = new CompletableFuture<>();
1283	<	f2 = new CompletableFuture<>();
1284	<	assertTrue(f2.cancel(true));
1285	<	checkCompletedWithWrappedCancellationException(g);
1286	<	}
1272	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1273	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1274	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1275	>	checkIncomplete(h0);
1276	>	checkIncomplete(h1);
1277	>	checkIncomplete(h2);
1278	>	assertTrue(f.complete(v1));
1279	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1280	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1281	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1282	>
1283	>	checkCompletedNormally(h0, null);
1284	>	checkCompletedNormally(h1, null);
1285	>	checkCompletedNormally(h2, null);
1286	>	checkCompletedNormally(h3, null);
1287	>	checkCompletedNormally(h4, null);
1288	>	checkCompletedNormally(h5, null);
1289	>	checkCompletedNormally(f, v1);
1290	>	for (Noop r : rs) r.assertInvoked();
1291	>	}}
1292
1293		/**
1294	<	* runAfterEither result completes normally after normal completion
1295	<	* of either source
1294	>	* thenRun result completes exceptionally after exceptional
1295	>	* completion of source
1296		*/
1297	<	public void testRunAfterEither() {
1298	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1299	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1300	<	Noop r = new Noop();
1301	<	CompletableFuture<Void> g = f.runAfterEither(f2, r);
1302	<	f.complete(one);
1303	<	checkCompletedNormally(g, null);
1431	<	f2.complete(one);
1432	<	checkCompletedNormally(g, null);
1433	<	assertTrue(r.ran);
1297	>	public void testThenRun_exceptionalCompletion() {
1298	>	for (ExecutionMode m : ExecutionMode.values())
1299	>	{
1300	>	final CFException ex = new CFException();
1301	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1302	>	final Noop[] rs = new Noop[6];
1303	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1304
1305	<	r = new Noop();
1306	<	f = new CompletableFuture<>();
1307	<	f.complete(one);
1308	<	f2 = new CompletableFuture<>();
1309	<	g = f.runAfterEither(f2, r);
1310	<	checkCompletedNormally(g, null);
1311	<	assertTrue(r.ran);
1312	<	}
1305	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1306	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1307	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1308	>	checkIncomplete(h0);
1309	>	checkIncomplete(h1);
1310	>	checkIncomplete(h2);
1311	>	assertTrue(f.completeExceptionally(ex));
1312	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1313	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1314	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1315	>
1316	>	checkCompletedWithWrappedException(h0, ex);
1317	>	checkCompletedWithWrappedException(h1, ex);
1318	>	checkCompletedWithWrappedException(h2, ex);
1319	>	checkCompletedWithWrappedException(h3, ex);
1320	>	checkCompletedWithWrappedException(h4, ex);
1321	>	checkCompletedWithWrappedException(h5, ex);
1322	>	checkCompletedExceptionally(f, ex);
1323	>	for (Noop r : rs) r.assertNotInvoked();
1324	>	}}
1325
1326		/**
1327	<	* runAfterEither result completes exceptionally after exceptional
1446	<	* completion of either source
1327	>	* thenRun result completes exceptionally if source cancelled
1328		*/
1329	<	public void testRunAfterEither2() {
1330	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1331	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1332	<	Noop r = new Noop();
1333	<	CompletableFuture<Void> g = f.runAfterEither(f2, r);
1334	<	f.completeExceptionally(new CFException());
1335	<	f2.complete(one);
1455	<	checkCompletedWithWrappedCFException(g);
1329	>	public void testThenRun_sourceCancelled() {
1330	>	for (ExecutionMode m : ExecutionMode.values())
1331	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1332	>	{
1333	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1334	>	final Noop[] rs = new Noop[6];
1335	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1336
1337	<	r = new Noop();
1338	<	f = new CompletableFuture<>();
1339	<	f2 = new CompletableFuture<>();
1340	<	f2.completeExceptionally(new CFException());
1341	<	g = f.runAfterEither(f2, r);
1342	<	checkCompletedWithWrappedCFException(g);
1343	<	}
1337	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1338	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1339	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1340	>	checkIncomplete(h0);
1341	>	checkIncomplete(h1);
1342	>	checkIncomplete(h2);
1343	>	assertTrue(f.cancel(mayInterruptIfRunning));
1344	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1345	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1346	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1347	>
1348	>	checkCompletedWithWrappedCancellationException(h0);
1349	>	checkCompletedWithWrappedCancellationException(h1);
1350	>	checkCompletedWithWrappedCancellationException(h2);
1351	>	checkCompletedWithWrappedCancellationException(h3);
1352	>	checkCompletedWithWrappedCancellationException(h4);
1353	>	checkCompletedWithWrappedCancellationException(h5);
1354	>	checkCancelled(f);
1355	>	for (Noop r : rs) r.assertNotInvoked();
1356	>	}}
1357
1358		/**
1359	<	* runAfterEither result completes exceptionally if action does
1359	>	* thenRun result completes exceptionally if action does
1360		*/
1361	<	public void testRunAfterEither3() {
1362	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1363	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1364	<	FailingNoop r = new FailingNoop();
1365	<	CompletableFuture<Void> g = f.runAfterEither(f2, r);
1366	<	f2.complete(two);
1367	<	checkCompletedWithWrappedCFException(g);
1475	<	}
1361	>	public void testThenRun_actionFailed() {
1362	>	for (ExecutionMode m : ExecutionMode.values())
1363	>	for (Integer v1 : new Integer[] { 1, null })
1364	>	{
1365	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1366	>	final FailingRunnable[] rs = new FailingRunnable[6];
1367	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingRunnable(m);
1368
1369	<	/**
1370	<	* runAfterEither result completes exceptionally if either source cancelled
1371	<	*/
1372	<	public void testRunAfterEither4() {
1373	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1374	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1375	<	Noop r = new Noop();
1376	<	CompletableFuture<Void> g = f.runAfterEither(f2, r);
1377	<	assertTrue(f.cancel(true));
1378	<	checkCompletedWithWrappedCancellationException(g);
1379	<	f = new CompletableFuture<>();
1380	<	f2 = new CompletableFuture<>();
1381	<	assertTrue(f2.cancel(true));
1382	<	checkCompletedWithWrappedCancellationException(g);
1383	<	}
1369	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1370	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1371	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1372	>	assertTrue(f.complete(v1));
1373	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1374	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1375	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1376	>
1377	>	checkCompletedWithWrappedCFException(h0);
1378	>	checkCompletedWithWrappedCFException(h1);
1379	>	checkCompletedWithWrappedCFException(h2);
1380	>	checkCompletedWithWrappedCFException(h3);
1381	>	checkCompletedWithWrappedCFException(h4);
1382	>	checkCompletedWithWrappedCFException(h5);
1383	>	checkCompletedNormally(f, v1);
1384	>	}}
1385
1386		/**
1387	<	* thenCompose result completes normally after normal completion of source
1387	>	* thenApply result completes normally after normal completion of source
1388		*/
1389	<	public void testThenCompose() {
1390	<	CompletableFuture<Integer> f, g;
1391	<	CompletableFutureInc r;
1392	<
1393	<	f = new CompletableFuture<>();
1394	<	g = f.thenCompose(r = new CompletableFutureInc());
1395	<	f.complete(one);
1503	<	checkCompletedNormally(g, two);
1504	<	assertTrue(r.ran);
1389	>	public void testThenApply_normalCompletion() {
1390	>	for (ExecutionMode m : ExecutionMode.values())
1391	>	for (Integer v1 : new Integer[] { 1, null })
1392	>	{
1393	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1394	>	final IncFunction[] rs = new IncFunction[4];
1395	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1396
1397	<	f = new CompletableFuture<>();
1398	<	f.complete(one);
1399	<	g = f.thenCompose(r = new CompletableFutureInc());
1400	<	checkCompletedNormally(g, two);
1401	<	assertTrue(r.ran);
1402	<	}
1397	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1398	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1399	>	checkIncomplete(h0);
1400	>	checkIncomplete(h1);
1401	>	assertTrue(f.complete(v1));
1402	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1403	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1404	>
1405	>	checkCompletedNormally(h0, inc(v1));
1406	>	checkCompletedNormally(h1, inc(v1));
1407	>	checkCompletedNormally(h2, inc(v1));
1408	>	checkCompletedNormally(h3, inc(v1));
1409	>	checkCompletedNormally(f, v1);
1410	>	for (IncFunction r : rs) r.assertValue(inc(v1));
1411	>	}}
1412
1413		/**
1414	<	* thenCompose result completes exceptionally after exceptional
1414	>	* thenApply result completes exceptionally after exceptional
1415		* completion of source
1416		*/
1417	<	public void testThenCompose2() {
1418	<	CompletableFuture<Integer> f, g;
1419	<	CompletableFutureInc r;
1420	<
1421	<	f = new CompletableFuture<>();
1422	<	g = f.thenCompose(r = new CompletableFutureInc());
1423	<	f.completeExceptionally(new CFException());
1524	<	checkCompletedWithWrappedCFException(g);
1525	<
1526	<	f = new CompletableFuture<>();
1527	<	f.completeExceptionally(new CFException());
1528	<	g = f.thenCompose(r = new CompletableFutureInc());
1529	<	checkCompletedWithWrappedCFException(g);
1530	<	}
1531	<
1532	<	/**
1533	<	* thenCompose result completes exceptionally if action does
1534	<	*/
1535	<	public void testThenCompose3() {
1536	<	CompletableFuture<Integer> f, g;
1537	<	FailingCompletableFutureFunction r;
1538	<
1539	<	f = new CompletableFuture<>();
1540	<	g = f.thenCompose(r = new FailingCompletableFutureFunction());
1541	<	f.complete(one);
1542	<	checkCompletedWithWrappedCFException(g);
1417	>	public void testThenApply_exceptionalCompletion() {
1418	>	for (ExecutionMode m : ExecutionMode.values())
1419	>	{
1420	>	final CFException ex = new CFException();
1421	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1422	>	final IncFunction[] rs = new IncFunction[4];
1423	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1424
1425	<	f = new CompletableFuture<>();
1426	<	f.complete(one);
1427	<	g = f.thenCompose(r = new FailingCompletableFutureFunction());
1428	<	checkCompletedWithWrappedCFException(g);
1429	<	}
1425	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1426	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1427	>	assertTrue(f.completeExceptionally(ex));
1428	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1429	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1430	>
1431	>	checkCompletedWithWrappedException(h0, ex);
1432	>	checkCompletedWithWrappedException(h1, ex);
1433	>	checkCompletedWithWrappedException(h2, ex);
1434	>	checkCompletedWithWrappedException(h3, ex);
1435	>	checkCompletedExceptionally(f, ex);
1436	>	for (IncFunction r : rs) r.assertNotInvoked();
1437	>	}}
1438
1439		/**
1440	<	* thenCompose result completes exceptionally if source cancelled
1440	>	* thenApply result completes exceptionally if source cancelled
1441		*/
1442	<	public void testThenCompose4() {
1443	<	CompletableFuture<Integer> f, g;
1444	<	CompletableFutureInc r;
1445	<
1446	<	f = new CompletableFuture<>();
1447	<	g = f.thenCompose(r = new CompletableFutureInc());
1448	<	assertTrue(f.cancel(true));
1560	<	checkCompletedWithWrappedCancellationException(g);
1561	<
1562	<	f = new CompletableFuture<>();
1563	<	assertTrue(f.cancel(true));
1564	<	g = f.thenCompose(r = new CompletableFutureInc());
1565	<	checkCompletedWithWrappedCancellationException(g);
1566	<	}
1567	<
1568	<	// asyncs
1442	>	public void testThenApply_sourceCancelled() {
1443	>	for (ExecutionMode m : ExecutionMode.values())
1444	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1445	>	{
1446	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1447	>	final IncFunction[] rs = new IncFunction[4];
1448	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1449
1450	<	/**
1451	<	* thenRunAsync result completes normally after normal completion of source
1452	<	*/
1453	<	public void testThenRunAsync() {
1454	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1575	<	Noop r = new Noop();
1576	<	CompletableFuture<Void> g = f.thenRunAsync(r);
1577	<	f.complete(null);
1578	<	checkCompletedNormally(g, null);
1450	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1451	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1452	>	assertTrue(f.cancel(mayInterruptIfRunning));
1453	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1454	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1455
1456	<	// reordered version
1457	<	f = new CompletableFuture<>();
1458	<	f.complete(null);
1459	<	r = new Noop();
1460	<	g = f.thenRunAsync(r);
1461	<	checkCompletedNormally(g, null);
1462	<	}
1456	>	checkCompletedWithWrappedCancellationException(h0);
1457	>	checkCompletedWithWrappedCancellationException(h1);
1458	>	checkCompletedWithWrappedCancellationException(h2);
1459	>	checkCompletedWithWrappedCancellationException(h3);
1460	>	checkCancelled(f);
1461	>	for (IncFunction r : rs) r.assertNotInvoked();
1462	>	}}
1463
1464		/**
1465	<	* thenRunAsync result completes exceptionally after exceptional
1590	<	* completion of source
1465	>	* thenApply result completes exceptionally if action does
1466		*/
1467	<	public void testThenRunAsync2() {
1468	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1469	<	Noop r = new Noop();
1470	<	CompletableFuture<Void> g = f.thenRunAsync(r);
1471	<	f.completeExceptionally(new CFException());
1472	<	try {
1473	<	g.join();
1599	<	shouldThrow();
1600	<	} catch (CompletionException success) {}
1601	<	checkCompletedWithWrappedCFException(g);
1602	<	}
1467	>	public void testThenApply_actionFailed() {
1468	>	for (ExecutionMode m : ExecutionMode.values())
1469	>	for (Integer v1 : new Integer[] { 1, null })
1470	>	{
1471	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1472	>	final FailingFunction[] rs = new FailingFunction[4];
1473	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingFunction(m);
1474
1475	<	/**
1476	<	* thenRunAsync result completes exceptionally if action does
1477	<	*/
1478	<	public void testThenRunAsync3() {
1479	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1480	<	FailingNoop r = new FailingNoop();
1481	<	CompletableFuture<Void> g = f.thenRunAsync(r);
1482	<	f.complete(null);
1483	<	checkCompletedWithWrappedCFException(g);
1484	<	}
1475	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1476	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1477	>	assertTrue(f.complete(v1));
1478	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1479	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1480	>
1481	>	checkCompletedWithWrappedCFException(h0);
1482	>	checkCompletedWithWrappedCFException(h1);
1483	>	checkCompletedWithWrappedCFException(h2);
1484	>	checkCompletedWithWrappedCFException(h3);
1485	>	checkCompletedNormally(f, v1);
1486	>	}}
1487
1488		/**
1489	<	* thenRunAsync result completes exceptionally if source cancelled
1489	>	* thenAccept result completes normally after normal completion of source
1490		*/
1491	<	public void testThenRunAsync4() {
1492	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1493	<	Noop r = new Noop();
1494	<	CompletableFuture<Void> g = f.thenRunAsync(r);
1495	<	assertTrue(f.cancel(true));
1496	<	checkCompletedWithWrappedCancellationException(g);
1497	<	}
1491	>	public void testThenAccept_normalCompletion() {
1492	>	for (ExecutionMode m : ExecutionMode.values())
1493	>	for (Integer v1 : new Integer[] { 1, null })
1494	>	{
1495	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1496	>	final NoopConsumer[] rs = new NoopConsumer[4];
1497	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1498
1499	<	/**
1500	<	* thenApplyAsync result completes normally after normal completion of source
1501	<	*/
1502	<	public void testThenApplyAsync() {
1503	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1504	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc);
1505	<	f.complete(one);
1506	<	checkCompletedNormally(g, two);
1507	<	}
1499	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1500	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1501	>	checkIncomplete(h0);
1502	>	checkIncomplete(h1);
1503	>	assertTrue(f.complete(v1));
1504	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1505	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1506	>
1507	>	checkCompletedNormally(h0, null);
1508	>	checkCompletedNormally(h1, null);
1509	>	checkCompletedNormally(h2, null);
1510	>	checkCompletedNormally(h3, null);
1511	>	checkCompletedNormally(f, v1);
1512	>	for (NoopConsumer r : rs) r.assertValue(v1);
1513	>	}}
1514
1515		/**
1516	<	* thenApplyAsync result completes exceptionally after exceptional
1516	>	* thenAccept result completes exceptionally after exceptional
1517		* completion of source
1518		*/
1519	<	public void testThenApplyAsync2() {
1520	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1521	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc);
1522	<	f.completeExceptionally(new CFException());
1523	<	checkCompletedWithWrappedCFException(g);
1524	<	}
1519	>	public void testThenAccept_exceptionalCompletion() {
1520	>	for (ExecutionMode m : ExecutionMode.values())
1521	>	{
1522	>	final CFException ex = new CFException();
1523	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1524	>	final NoopConsumer[] rs = new NoopConsumer[4];
1525	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1526
1527	<	/**
1528	<	* thenApplyAsync result completes exceptionally if action does
1529	<	*/
1530	<	public void testThenApplyAsync3() {
1531	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1532	<	FailingFunction r = new FailingFunction();
1533	<	CompletableFuture<Integer> g = f.thenApplyAsync(r);
1534	<	f.complete(null);
1535	<	checkCompletedWithWrappedCFException(g);
1536	<	}
1527	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1528	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1529	>	assertTrue(f.completeExceptionally(ex));
1530	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1531	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1532	>
1533	>	checkCompletedWithWrappedException(h0, ex);
1534	>	checkCompletedWithWrappedException(h1, ex);
1535	>	checkCompletedWithWrappedException(h2, ex);
1536	>	checkCompletedWithWrappedException(h3, ex);
1537	>	checkCompletedExceptionally(f, ex);
1538	>	for (NoopConsumer r : rs) r.assertNotInvoked();
1539	>	}}
1540
1541		/**
1542	<	* thenApplyAsync result completes exceptionally if source cancelled
1542	>	* thenAccept result completes exceptionally if source cancelled
1543		*/
1544	<	public void testThenApplyAsync4() {
1545	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1546	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc);
1547	<	assertTrue(f.cancel(true));
1548	<	checkCompletedWithWrappedCancellationException(g);
1549	<	}
1544	>	public void testThenAccept_sourceCancelled() {
1545	>	for (ExecutionMode m : ExecutionMode.values())
1546	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1547	>	{
1548	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1549	>	final NoopConsumer[] rs = new NoopConsumer[4];
1550	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1551
1552	<	/**
1553	<	* thenAcceptAsync result completes normally after normal
1554	<	* completion of source
1555	<	*/
1556	<	public void testThenAcceptAsync() {
1673	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1674	<	IncAction r = new IncAction();
1675	<	CompletableFuture<Void> g = f.thenAcceptAsync(r);
1676	<	f.complete(one);
1677	<	checkCompletedNormally(g, null);
1678	<	assertEquals(r.value, 2);
1679	<	}
1552	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1553	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1554	>	assertTrue(f.cancel(mayInterruptIfRunning));
1555	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1556	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1557
1558	<	/**
1559	<	* thenAcceptAsync result completes exceptionally after exceptional
1560	<	* completion of source
1561	<	*/
1562	<	public void testThenAcceptAsync2() {
1563	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1564	<	IncAction r = new IncAction();
1688	<	CompletableFuture<Void> g = f.thenAcceptAsync(r);
1689	<	f.completeExceptionally(new CFException());
1690	<	checkCompletedWithWrappedCFException(g);
1691	<	}
1558	>	checkCompletedWithWrappedCancellationException(h0);
1559	>	checkCompletedWithWrappedCancellationException(h1);
1560	>	checkCompletedWithWrappedCancellationException(h2);
1561	>	checkCompletedWithWrappedCancellationException(h3);
1562	>	checkCancelled(f);
1563	>	for (NoopConsumer r : rs) r.assertNotInvoked();
1564	>	}}
1565
1566		/**
1567	<	* thenAcceptAsync result completes exceptionally if action does
1567	>	* thenAccept result completes exceptionally if action does
1568		*/
1569	<	public void testThenAcceptAsync3() {
1570	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1571	<	FailingConsumer r = new FailingConsumer();
1572	<	CompletableFuture<Void> g = f.thenAcceptAsync(r);
1573	<	f.complete(null);
1574	<	checkCompletedWithWrappedCFException(g);
1575	<	}
1569	>	public void testThenAccept_actionFailed() {
1570	>	for (ExecutionMode m : ExecutionMode.values())
1571	>	for (Integer v1 : new Integer[] { 1, null })
1572	>	{
1573	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1574	>	final FailingConsumer[] rs = new FailingConsumer[4];
1575	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingConsumer(m);
1576
1577	<	/**
1578	<	* thenAcceptAsync result completes exceptionally if source cancelled
1579	<	*/
1580	<	public void testThenAcceptAsync4() {
1581	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1582	<	IncAction r = new IncAction();
1583	<	CompletableFuture<Void> g = f.thenAcceptAsync(r);
1584	<	assertTrue(f.cancel(true));
1585	<	checkCompletedWithWrappedCancellationException(g);
1586	<	}
1577	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1578	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1579	>	assertTrue(f.complete(v1));
1580	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1581	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1582	>
1583	>	checkCompletedWithWrappedCFException(h0);
1584	>	checkCompletedWithWrappedCFException(h1);
1585	>	checkCompletedWithWrappedCFException(h2);
1586	>	checkCompletedWithWrappedCFException(h3);
1587	>	checkCompletedNormally(f, v1);
1588	>	}}
1589
1590		/**
1591	<	* thenCombineAsync result completes normally after normal
1592	<	* completion of sources
1591	>	* thenCombine result completes normally after normal completion
1592	>	* of sources
1593		*/
1594	<	public void testThenCombineAsync() {
1595	<	CompletableFuture<Integer> f, g, h;
1596	<
1597	<	f = new CompletableFuture<>();
1598	<	g = new CompletableFuture<>();
1599	<	h = f.thenCombineAsync(g, subtract);
1600	<	f.complete(3);
1601	<	checkIncomplete(h);
1602	<	g.complete(1);
1603	<	checkCompletedNormally(h, 2);
1594	>	public void testThenCombine_normalCompletion() {
1595	>	for (ExecutionMode m : ExecutionMode.values())
1596	>	for (boolean fFirst : new boolean[] { true, false })
1597	>	for (Integer v1 : new Integer[] { 1, null })
1598	>	for (Integer v2 : new Integer[] { 2, null })
1599	>	{
1600	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1601	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1602	>	final SubtractFunction[] rs = new SubtractFunction[6];
1603	>	for (int i = 0; i < rs.length; i++) rs[i] = new SubtractFunction(m);
1604
1605	<	f = new CompletableFuture<>();
1606	<	g = new CompletableFuture<>();
1607	<	h = f.thenCombineAsync(g, subtract);
1608	<	g.complete(1);
1609	<	checkIncomplete(h);
1610	<	f.complete(3);
1611	<	checkCompletedNormally(h, 2);
1605	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1606	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1607	>	final Integer w1 =  fFirst ? v1 : v2;
1608	>	final Integer w2 = !fFirst ? v1 : v2;
1609	>
1610	>	final CompletableFuture<Integer> h0 = m.thenCombine(f, g, rs[0]);
1611	>	final CompletableFuture<Integer> h1 = m.thenCombine(fst, fst, rs[1]);
1612	>	assertTrue(fst.complete(w1));
1613	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, rs[2]);
1614	>	final CompletableFuture<Integer> h3 = m.thenCombine(fst, fst, rs[3]);
1615	>	checkIncomplete(h0); rs[0].assertNotInvoked();
1616	>	checkIncomplete(h2); rs[2].assertNotInvoked();
1617	>	checkCompletedNormally(h1, subtract(w1, w1));
1618	>	checkCompletedNormally(h3, subtract(w1, w1));
1619	>	rs[1].assertValue(subtract(w1, w1));
1620	>	rs[3].assertValue(subtract(w1, w1));
1621	>	assertTrue(snd.complete(w2));
1622	>	final CompletableFuture<Integer> h4 = m.thenCombine(f, g, rs[4]);
1623	>
1624	>	checkCompletedNormally(h0, subtract(v1, v2));
1625	>	checkCompletedNormally(h2, subtract(v1, v2));
1626	>	checkCompletedNormally(h4, subtract(v1, v2));
1627	>	rs[0].assertValue(subtract(v1, v2));
1628	>	rs[2].assertValue(subtract(v1, v2));
1629	>	rs[4].assertValue(subtract(v1, v2));
1630
1631	<	f = new CompletableFuture<>();
1632	<	g = new CompletableFuture<>();
1633	<	g.complete(1);
1741	<	f.complete(3);
1742	<	h = f.thenCombineAsync(g, subtract);
1743	<	checkCompletedNormally(h, 2);
1744	<	}
1631	>	checkCompletedNormally(f, v1);
1632	>	checkCompletedNormally(g, v2);
1633	>	}}
1634
1635		/**
1636	<	* thenCombineAsync result completes exceptionally after exceptional
1636	>	* thenCombine result completes exceptionally after exceptional
1637		* completion of either source
1638		*/
1639	<	public void testThenCombineAsync2() {
1640	<	CompletableFuture<Integer> f, g, h;
1641	<
1642	<	f = new CompletableFuture<>();
1643	<	g = new CompletableFuture<>();
1644	<	h = f.thenCombineAsync(g, subtract);
1645	<	f.completeExceptionally(new CFException());
1646	<	checkIncomplete(h);
1647	<	g.complete(1);
1648	<	checkCompletedWithWrappedCFException(h);
1649	<
1650	<	f = new CompletableFuture<>();
1651	<	g = new CompletableFuture<>();
1652	<	h = f.thenCombineAsync(g, subtract);
1653	<	g.completeExceptionally(new CFException());
1654	<	checkIncomplete(h);
1655	<	f.complete(3);
1656	<	checkCompletedWithWrappedCFException(h);
1657	<
1658	<	f = new CompletableFuture<>();
1659	<	g = new CompletableFuture<>();
1660	<	g.completeExceptionally(new CFException());
1661	<	f.complete(3);
1662	<	h = f.thenCombineAsync(g, subtract);
1663	<	checkCompletedWithWrappedCFException(h);
1664	<	}
1665	<
1666	<	/**
1667	<	* thenCombineAsync result completes exceptionally if action does
1668	<	*/
1669	<	public void testThenCombineAsync3() {
1670	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1671	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1672	<	FailingBiFunction r = new FailingBiFunction();
1673	<	CompletableFuture<Integer> g = f.thenCombineAsync(f2, r);
1674	<	f.complete(one);
1675	<	checkIncomplete(g);
1676	<	assertFalse(r.ran);
1677	<	f2.complete(two);
1789	<	checkCompletedWithWrappedCFException(g);
1790	<	assertTrue(r.ran);
1791	<	}
1792	<
1793	<	/**
1794	<	* thenCombineAsync result completes exceptionally if either source cancelled
1795	<	*/
1796	<	public void testThenCombineAsync4() {
1797	<	CompletableFuture<Integer> f, g, h;
1798	<
1799	<	f = new CompletableFuture<>();
1800	<	g = new CompletableFuture<>();
1801	<	h = f.thenCombineAsync(g, subtract);
1802	<	assertTrue(f.cancel(true));
1803	<	checkIncomplete(h);
1804	<	g.complete(1);
1805	<	checkCompletedWithWrappedCancellationException(h);
1806	<
1807	<	f = new CompletableFuture<>();
1808	<	g = new CompletableFuture<>();
1809	<	h = f.thenCombineAsync(g, subtract);
1810	<	assertTrue(g.cancel(true));
1811	<	checkIncomplete(h);
1812	<	f.complete(3);
1813	<	checkCompletedWithWrappedCancellationException(h);
1814	<
1815	<	f = new CompletableFuture<>();
1816	<	g = new CompletableFuture<>();
1817	<	g.complete(3);
1818	<	assertTrue(f.cancel(true));
1819	<	h = f.thenCombineAsync(g, subtract);
1820	<	checkCompletedWithWrappedCancellationException(h);
1821	<
1822	<	f = new CompletableFuture<>();
1823	<	g = new CompletableFuture<>();
1824	<	f.complete(3);
1825	<	assertTrue(g.cancel(true));
1826	<	h = f.thenCombineAsync(g, subtract);
1827	<	checkCompletedWithWrappedCancellationException(h);
1828	<	}
1829	<
1830	<	/**
1831	<	* thenAcceptBothAsync result completes normally after normal
1832	<	* completion of sources
1833	<	*/
1834	<	public void testThenAcceptBothAsync() {
1835	<	CompletableFuture<Integer> f, g;
1836	<	CompletableFuture<Void> h;
1837	<	SubtractAction r;
1838	<
1839	<	f = new CompletableFuture<>();
1840	<	g = new CompletableFuture<>();
1841	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1842	<	f.complete(3);
1843	<	checkIncomplete(h);
1844	<	g.complete(1);
1845	<	checkCompletedNormally(h, null);
1846	<	assertEquals(r.value, 2);
1847	<
1848	<	f = new CompletableFuture<>();
1849	<	g = new CompletableFuture<>();
1850	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1851	<	g.complete(1);
1852	<	checkIncomplete(h);
1853	<	f.complete(3);
1854	<	checkCompletedNormally(h, null);
1855	<	assertEquals(r.value, 2);
1856	<
1857	<	f = new CompletableFuture<>();
1858	<	g = new CompletableFuture<>();
1859	<	g.complete(1);
1860	<	f.complete(3);
1861	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1862	<	checkCompletedNormally(h, null);
1863	<	assertEquals(r.value, 2);
1864	<	}
1865	<
1866	<	/**
1867	<	* thenAcceptBothAsync result completes exceptionally after exceptional
1868	<	* completion of source
1869	<	*/
1870	<	public void testThenAcceptBothAsync2() {
1871	<	CompletableFuture<Integer> f, g;
1872	<	CompletableFuture<Void> h;
1873	<	SubtractAction r;
1874	<
1875	<	f = new CompletableFuture<>();
1876	<	g = new CompletableFuture<>();
1877	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1878	<	f.completeExceptionally(new CFException());
1879	<	checkIncomplete(h);
1880	<	g.complete(1);
1881	<	checkCompletedWithWrappedCFException(h);
1882	<
1883	<	f = new CompletableFuture<>();
1884	<	g = new CompletableFuture<>();
1885	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1886	<	g.completeExceptionally(new CFException());
1887	<	checkIncomplete(h);
1888	<	f.complete(3);
1889	<	checkCompletedWithWrappedCFException(h);
1890	<
1891	<	f = new CompletableFuture<>();
1892	<	g = new CompletableFuture<>();
1893	<	f.complete(3);
1894	<	g.completeExceptionally(new CFException());
1895	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1896	<	checkCompletedWithWrappedCFException(h);
1897	<
1898	<	f = new CompletableFuture<>();
1899	<	g = new CompletableFuture<>();
1900	<	f.completeExceptionally(new CFException());
1901	<	g.complete(3);
1902	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1903	<	checkCompletedWithWrappedCFException(h);
1904	<	}
1905	<
1906	<	/**
1907	<	* thenAcceptBothAsync result completes exceptionally if action does
1908	<	*/
1909	<	public void testThenAcceptBothAsync3() {
1910	<	CompletableFuture<Integer> f, g;
1911	<	CompletableFuture<Void> h;
1912	<	FailingBiConsumer r;
1913	<
1914	<	f = new CompletableFuture<>();
1915	<	g = new CompletableFuture<>();
1916	<	h = f.thenAcceptBothAsync(g, r = new FailingBiConsumer());
1917	<	f.complete(3);
1918	<	checkIncomplete(h);
1919	<	g.complete(1);
1920	<	checkCompletedWithWrappedCFException(h);
1921	<
1922	<	f = new CompletableFuture<>();
1923	<	g = new CompletableFuture<>();
1924	<	f.complete(3);
1925	<	g.complete(1);
1926	<	h = f.thenAcceptBothAsync(g, r = new FailingBiConsumer());
1927	<	checkCompletedWithWrappedCFException(h);
1928	<	}
1929	<
1930	<	/**
1931	<	* thenAcceptBothAsync result completes exceptionally if either source cancelled
1932	<	*/
1933	<	public void testThenAcceptBothAsync4() {
1934	<	CompletableFuture<Integer> f, g;
1935	<	CompletableFuture<Void> h;
1936	<	SubtractAction r;
1937	<
1938	<	f = new CompletableFuture<>();
1939	<	g = new CompletableFuture<>();
1940	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1941	<	assertTrue(f.cancel(true));
1942	<	checkIncomplete(h);
1943	<	g.complete(1);
1944	<	checkCompletedWithWrappedCancellationException(h);
1945	<
1946	<	f = new CompletableFuture<>();
1947	<	g = new CompletableFuture<>();
1948	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1949	<	assertTrue(g.cancel(true));
1950	<	checkIncomplete(h);
1951	<	f.complete(3);
1952	<	checkCompletedWithWrappedCancellationException(h);
1953	<
1954	<	f = new CompletableFuture<>();
1955	<	g = new CompletableFuture<>();
1956	<	f.complete(3);
1957	<	assertTrue(g.cancel(true));
1958	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1959	<	checkCompletedWithWrappedCancellationException(h);
1960	<
1961	<	f = new CompletableFuture<>();
1962	<	g = new CompletableFuture<>();
1963	<	assertTrue(f.cancel(true));
1964	<	g.complete(3);
1965	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1966	<	checkCompletedWithWrappedCancellationException(h);
1967	<	}
1968	<
1969	<	/**
1970	<	* applyToEitherAsync result completes normally after normal
1971	<	* completion of sources
1972	<	*/
1973	<	public void testApplyToEitherAsync() {
1974	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1975	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1976	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc);
1977	<	f.complete(one);
1978	<	checkCompletedNormally(g, two);
1979	<
1980	<	f = new CompletableFuture<>();
1981	<	f.complete(one);
1982	<	f2 = new CompletableFuture<>();
1983	<	g = f.applyToEitherAsync(f2, inc);
1984	<	checkCompletedNormally(g, two);
1985	<	}
1986	<
1987	<	/**
1988	<	* applyToEitherAsync result completes exceptionally after exceptional
1989	<	* completion of source
1990	<	*/
1991	<	public void testApplyToEitherAsync2() {
1992	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1993	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1994	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc);
1995	<	f.completeExceptionally(new CFException());
1996	<	checkCompletedWithWrappedCFException(g);
1997	<
1998	<	f = new CompletableFuture<>();
1999	<	f2 = new CompletableFuture<>();
2000	<	f2.completeExceptionally(new CFException());
2001	<	g = f.applyToEitherAsync(f2, inc);
2002	<	f.complete(one);
2003	<	checkCompletedWithWrappedCFException(g);
2004	<	}
1639	>	public void testThenCombine_exceptionalCompletion() throws Throwable {
1640	>	for (ExecutionMode m : ExecutionMode.values())
1641	>	for (boolean fFirst : new boolean[] { true, false })
1642	>	for (boolean failFirst : new boolean[] { true, false })
1643	>	for (Integer v1 : new Integer[] { 1, null })
1644	>	{
1645	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1646	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1647	>	final CFException ex = new CFException();
1648	>	final SubtractFunction r1 = new SubtractFunction(m);
1649	>	final SubtractFunction r2 = new SubtractFunction(m);
1650	>	final SubtractFunction r3 = new SubtractFunction(m);
1651	>
1652	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1653	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1654	>	final Callable<Boolean> complete1 = failFirst ?
1655	>	() -> fst.completeExceptionally(ex) :
1656	>	() -> fst.complete(v1);
1657	>	final Callable<Boolean> complete2 = failFirst ?
1658	>	() -> snd.complete(v1) :
1659	>	() -> snd.completeExceptionally(ex);
1660	>
1661	>	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1662	>	assertTrue(complete1.call());
1663	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1664	>	checkIncomplete(h1);
1665	>	checkIncomplete(h2);
1666	>	assertTrue(complete2.call());
1667	>	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1668	>
1669	>	checkCompletedWithWrappedException(h1, ex);
1670	>	checkCompletedWithWrappedException(h2, ex);
1671	>	checkCompletedWithWrappedException(h3, ex);
1672	>	r1.assertNotInvoked();
1673	>	r2.assertNotInvoked();
1674	>	r3.assertNotInvoked();
1675	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1676	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
1677	>	}}
1678
1679		/**
1680	<	* applyToEitherAsync result completes exceptionally if action does
1680	>	* thenCombine result completes exceptionally if either source cancelled
1681		*/
1682	<	public void testApplyToEitherAsync3() {
1683	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1684	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1685	<	FailingFunction r = new FailingFunction();
1686	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, r);
1687	<	f.complete(one);
1688	<	checkCompletedWithWrappedCFException(g);
1689	<	}
1682	>	public void testThenCombine_sourceCancelled() throws Throwable {
1683	>	for (ExecutionMode m : ExecutionMode.values())
1684	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1685	>	for (boolean fFirst : new boolean[] { true, false })
1686	>	for (boolean failFirst : new boolean[] { true, false })
1687	>	for (Integer v1 : new Integer[] { 1, null })
1688	>	{
1689	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1690	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1691	>	final SubtractFunction r1 = new SubtractFunction(m);
1692	>	final SubtractFunction r2 = new SubtractFunction(m);
1693	>	final SubtractFunction r3 = new SubtractFunction(m);
1694	>
1695	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1696	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1697	>	final Callable<Boolean> complete1 = failFirst ?
1698	>	() -> fst.cancel(mayInterruptIfRunning) :
1699	>	() -> fst.complete(v1);
1700	>	final Callable<Boolean> complete2 = failFirst ?
1701	>	() -> snd.complete(v1) :
1702	>	() -> snd.cancel(mayInterruptIfRunning);
1703	>
1704	>	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1705	>	assertTrue(complete1.call());
1706	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1707	>	checkIncomplete(h1);
1708	>	checkIncomplete(h2);
1709	>	assertTrue(complete2.call());
1710	>	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1711	>
1712	>	checkCompletedWithWrappedCancellationException(h1);
1713	>	checkCompletedWithWrappedCancellationException(h2);
1714	>	checkCompletedWithWrappedCancellationException(h3);
1715	>	r1.assertNotInvoked();
1716	>	r2.assertNotInvoked();
1717	>	r3.assertNotInvoked();
1718	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1719	>	checkCancelled(failFirst ? fst : snd);
1720	>	}}
1721
1722		/**
1723	<	* applyToEitherAsync result completes exceptionally if either source cancelled
1723	>	* thenCombine result completes exceptionally if action does
1724		*/
1725	<	public void testApplyToEitherAsync4() {
1726	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1727	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1728	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc);
1729	<	assertTrue(f.cancel(true));
1730	<	checkCompletedWithWrappedCancellationException(g);
1731	<
1732	<	f = new CompletableFuture<>();
1733	<	f2 = new CompletableFuture<>();
1734	<	assertTrue(f2.cancel(true));
1735	<	g = f.applyToEitherAsync(f2, inc);
1736	<	checkCompletedWithWrappedCancellationException(g);
1737	<	}
1725	>	public void testThenCombine_actionFailed() {
1726	>	for (ExecutionMode m : ExecutionMode.values())
1727	>	for (boolean fFirst : new boolean[] { true, false })
1728	>	for (Integer v1 : new Integer[] { 1, null })
1729	>	for (Integer v2 : new Integer[] { 2, null })
1730	>	{
1731	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1732	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1733	>	final FailingBiFunction r1 = new FailingBiFunction(m);
1734	>	final FailingBiFunction r2 = new FailingBiFunction(m);
1735	>	final FailingBiFunction r3 = new FailingBiFunction(m);
1736	>
1737	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1738	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1739	>	final Integer w1 =  fFirst ? v1 : v2;
1740	>	final Integer w2 = !fFirst ? v1 : v2;
1741	>
1742	>	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1743	>	assertTrue(fst.complete(w1));
1744	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1745	>	assertTrue(snd.complete(w2));
1746	>	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1747	>
1748	>	checkCompletedWithWrappedCFException(h1);
1749	>	checkCompletedWithWrappedCFException(h2);
1750	>	checkCompletedWithWrappedCFException(h3);
1751	>	r1.assertInvoked();
1752	>	r2.assertInvoked();
1753	>	r3.assertInvoked();
1754	>	checkCompletedNormally(f, v1);
1755	>	checkCompletedNormally(g, v2);
1756	>	}}
1757
1758		/**
1759	<	* acceptEitherAsync result completes normally after normal
1759	>	* thenAcceptBoth result completes normally after normal
1760		* completion of sources
1761		*/
1762	<	public void testAcceptEitherAsync() {
1763	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1764	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1765	<	IncAction r = new IncAction();
1766	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
1767	<	f.complete(one);
1768	<	checkCompletedNormally(g, null);
1769	<	assertEquals(r.value, 2);
1770	<
1771	<	r = new IncAction();
1772	<	f = new CompletableFuture<>();
1773	<	f.complete(one);
1774	<	f2 = new CompletableFuture<>();
1775	<	g = f.acceptEitherAsync(f2, r);
1776	<	checkCompletedNormally(g, null);
1777	<	assertEquals(r.value, 2);
1778	<	}
1762	>	public void testThenAcceptBoth_normalCompletion() {
1763	>	for (ExecutionMode m : ExecutionMode.values())
1764	>	for (boolean fFirst : new boolean[] { true, false })
1765	>	for (Integer v1 : new Integer[] { 1, null })
1766	>	for (Integer v2 : new Integer[] { 2, null })
1767	>	{
1768	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1769	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1770	>	final SubtractAction r1 = new SubtractAction(m);
1771	>	final SubtractAction r2 = new SubtractAction(m);
1772	>	final SubtractAction r3 = new SubtractAction(m);
1773	>
1774	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1775	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1776	>	final Integer w1 =  fFirst ? v1 : v2;
1777	>	final Integer w2 = !fFirst ? v1 : v2;
1778	>
1779	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1780	>	assertTrue(fst.complete(w1));
1781	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1782	>	checkIncomplete(h1);
1783	>	checkIncomplete(h2);
1784	>	r1.assertNotInvoked();
1785	>	r2.assertNotInvoked();
1786	>	assertTrue(snd.complete(w2));
1787	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1788	>
1789	>	checkCompletedNormally(h1, null);
1790	>	checkCompletedNormally(h2, null);
1791	>	checkCompletedNormally(h3, null);
1792	>	r1.assertValue(subtract(v1, v2));
1793	>	r2.assertValue(subtract(v1, v2));
1794	>	r3.assertValue(subtract(v1, v2));
1795	>	checkCompletedNormally(f, v1);
1796	>	checkCompletedNormally(g, v2);
1797	>	}}
1798
1799		/**
1800	<	* acceptEitherAsync result completes exceptionally after exceptional
1801	<	* completion of source
1800	>	* thenAcceptBoth result completes exceptionally after exceptional
1801	>	* completion of either source
1802		*/
1803	<	public void testAcceptEitherAsync2() {
1804	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1805	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1806	<	IncAction r = new IncAction();
1807	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
1808	<	f.completeExceptionally(new CFException());
1809	<	checkCompletedWithWrappedCFException(g);
1810	<
1811	<	r = new IncAction();
1812	<	f = new CompletableFuture<>();
1813	<	f2 = new CompletableFuture<>();
1814	<	f2.completeExceptionally(new CFException());
1815	<	g = f.acceptEitherAsync(f2, r);
1816	<	f.complete(one);
1817	<	checkCompletedWithWrappedCFException(g);
1818	<	}
1803	>	public void testThenAcceptBoth_exceptionalCompletion() throws Throwable {
1804	>	for (ExecutionMode m : ExecutionMode.values())
1805	>	for (boolean fFirst : new boolean[] { true, false })
1806	>	for (boolean failFirst : new boolean[] { true, false })
1807	>	for (Integer v1 : new Integer[] { 1, null })
1808	>	{
1809	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1810	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1811	>	final CFException ex = new CFException();
1812	>	final SubtractAction r1 = new SubtractAction(m);
1813	>	final SubtractAction r2 = new SubtractAction(m);
1814	>	final SubtractAction r3 = new SubtractAction(m);
1815	>
1816	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1817	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1818	>	final Callable<Boolean> complete1 = failFirst ?
1819	>	() -> fst.completeExceptionally(ex) :
1820	>	() -> fst.complete(v1);
1821	>	final Callable<Boolean> complete2 = failFirst ?
1822	>	() -> snd.complete(v1) :
1823	>	() -> snd.completeExceptionally(ex);
1824	>
1825	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1826	>	assertTrue(complete1.call());
1827	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1828	>	checkIncomplete(h1);
1829	>	checkIncomplete(h2);
1830	>	assertTrue(complete2.call());
1831	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1832	>
1833	>	checkCompletedWithWrappedException(h1, ex);
1834	>	checkCompletedWithWrappedException(h2, ex);
1835	>	checkCompletedWithWrappedException(h3, ex);
1836	>	r1.assertNotInvoked();
1837	>	r2.assertNotInvoked();
1838	>	r3.assertNotInvoked();
1839	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1840	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
1841	>	}}
1842
1843		/**
1844	<	* acceptEitherAsync result completes exceptionally if action does
1844	>	* thenAcceptBoth result completes exceptionally if either source cancelled
1845		*/
1846	<	public void testAcceptEitherAsync3() {
1847	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1848	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1849	<	FailingConsumer r = new FailingConsumer();
1850	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
1851	<	f.complete(one);
1852	<	checkCompletedWithWrappedCFException(g);
1853	<	}
1846	>	public void testThenAcceptBoth_sourceCancelled() throws Throwable {
1847	>	for (ExecutionMode m : ExecutionMode.values())
1848	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1849	>	for (boolean fFirst : new boolean[] { true, false })
1850	>	for (boolean failFirst : new boolean[] { true, false })
1851	>	for (Integer v1 : new Integer[] { 1, null })
1852	>	{
1853	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1854	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1855	>	final SubtractAction r1 = new SubtractAction(m);
1856	>	final SubtractAction r2 = new SubtractAction(m);
1857	>	final SubtractAction r3 = new SubtractAction(m);
1858	>
1859	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1860	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1861	>	final Callable<Boolean> complete1 = failFirst ?
1862	>	() -> fst.cancel(mayInterruptIfRunning) :
1863	>	() -> fst.complete(v1);
1864	>	final Callable<Boolean> complete2 = failFirst ?
1865	>	() -> snd.complete(v1) :
1866	>	() -> snd.cancel(mayInterruptIfRunning);
1867	>
1868	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1869	>	assertTrue(complete1.call());
1870	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1871	>	checkIncomplete(h1);
1872	>	checkIncomplete(h2);
1873	>	assertTrue(complete2.call());
1874	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1875	>
1876	>	checkCompletedWithWrappedCancellationException(h1);
1877	>	checkCompletedWithWrappedCancellationException(h2);
1878	>	checkCompletedWithWrappedCancellationException(h3);
1879	>	r1.assertNotInvoked();
1880	>	r2.assertNotInvoked();
1881	>	r3.assertNotInvoked();
1882	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1883	>	checkCancelled(failFirst ? fst : snd);
1884	>	}}
1885
1886		/**
1887	<	* acceptEitherAsync result completes exceptionally if either
2092	<	* source cancelled
1887	>	* thenAcceptBoth result completes exceptionally if action does
1888		*/
1889	<	public void testAcceptEitherAsync4() {
1890	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1891	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1892	<	IncAction r = new IncAction();
1893	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
1894	<	assertTrue(f.cancel(true));
1895	<	checkCompletedWithWrappedCancellationException(g);
1896	<
1897	<	r = new IncAction();
1898	<	f = new CompletableFuture<>();
1899	<	f2 = new CompletableFuture<>();
1900	<	assertTrue(f2.cancel(true));
1901	<	g = f.acceptEitherAsync(f2, r);
1902	<	checkCompletedWithWrappedCancellationException(g);
1903	<	}
1889	>	public void testThenAcceptBoth_actionFailed() {
1890	>	for (ExecutionMode m : ExecutionMode.values())
1891	>	for (boolean fFirst : new boolean[] { true, false })
1892	>	for (Integer v1 : new Integer[] { 1, null })
1893	>	for (Integer v2 : new Integer[] { 2, null })
1894	>	{
1895	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1896	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1897	>	final FailingBiConsumer r1 = new FailingBiConsumer(m);
1898	>	final FailingBiConsumer r2 = new FailingBiConsumer(m);
1899	>	final FailingBiConsumer r3 = new FailingBiConsumer(m);
1900	>
1901	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1902	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1903	>	final Integer w1 =  fFirst ? v1 : v2;
1904	>	final Integer w2 = !fFirst ? v1 : v2;
1905	>
1906	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1907	>	assertTrue(fst.complete(w1));
1908	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1909	>	assertTrue(snd.complete(w2));
1910	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1911	>
1912	>	checkCompletedWithWrappedCFException(h1);
1913	>	checkCompletedWithWrappedCFException(h2);
1914	>	checkCompletedWithWrappedCFException(h3);
1915	>	r1.assertInvoked();
1916	>	r2.assertInvoked();
1917	>	r3.assertInvoked();
1918	>	checkCompletedNormally(f, v1);
1919	>	checkCompletedNormally(g, v2);
1920	>	}}
1921
1922		/**
1923	<	* runAfterEitherAsync result completes normally after normal
1923	>	* runAfterBoth result completes normally after normal
1924		* completion of sources
1925		*/
1926	<	public void testRunAfterEitherAsync() {
1927	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1928	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1929	<	Noop r = new Noop();
1930	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
1931	<	f.complete(one);
1932	<	checkCompletedNormally(g, null);
1933	<	assertTrue(r.ran);
1934	<
1935	<	r = new Noop();
1936	<	f = new CompletableFuture<>();
1937	<	f.complete(one);
1938	<	f2 = new CompletableFuture<>();
1939	<	g = f.runAfterEitherAsync(f2, r);
1940	<	checkCompletedNormally(g, null);
1941	<	assertTrue(r.ran);
1942	<	}
1926	>	public void testRunAfterBoth_normalCompletion() {
1927	>	for (ExecutionMode m : ExecutionMode.values())
1928	>	for (boolean fFirst : new boolean[] { true, false })
1929	>	for (Integer v1 : new Integer[] { 1, null })
1930	>	for (Integer v2 : new Integer[] { 2, null })
1931	>	{
1932	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1933	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1934	>	final Noop r1 = new Noop(m);
1935	>	final Noop r2 = new Noop(m);
1936	>	final Noop r3 = new Noop(m);
1937	>
1938	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1939	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1940	>	final Integer w1 =  fFirst ? v1 : v2;
1941	>	final Integer w2 = !fFirst ? v1 : v2;
1942	>
1943	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
1944	>	assertTrue(fst.complete(w1));
1945	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
1946	>	checkIncomplete(h1);
1947	>	checkIncomplete(h2);
1948	>	r1.assertNotInvoked();
1949	>	r2.assertNotInvoked();
1950	>	assertTrue(snd.complete(w2));
1951	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
1952	>
1953	>	checkCompletedNormally(h1, null);
1954	>	checkCompletedNormally(h2, null);
1955	>	checkCompletedNormally(h3, null);
1956	>	r1.assertInvoked();
1957	>	r2.assertInvoked();
1958	>	r3.assertInvoked();
1959	>	checkCompletedNormally(f, v1);
1960	>	checkCompletedNormally(g, v2);
1961	>	}}
1962
1963		/**
1964	<	* runAfterEitherAsync result completes exceptionally after exceptional
1965	<	* completion of source
1964	>	* runAfterBoth result completes exceptionally after exceptional
1965	>	* completion of either source
1966		*/
1967	<	public void testRunAfterEitherAsync2() {
1968	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1969	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1970	<	Noop r = new Noop();
1971	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
1972	<	f.completeExceptionally(new CFException());
1973	<	checkCompletedWithWrappedCFException(g);
1974	<
1975	<	r = new Noop();
1976	<	f = new CompletableFuture<>();
1977	<	f2 = new CompletableFuture<>();
1978	<	f2.completeExceptionally(new CFException());
1979	<	g = f.runAfterEitherAsync(f2, r);
1980	<	f.complete(one);
1981	<	checkCompletedWithWrappedCFException(g);
1982	<	}
1967	>	public void testRunAfterBoth_exceptionalCompletion() throws Throwable {
1968	>	for (ExecutionMode m : ExecutionMode.values())
1969	>	for (boolean fFirst : new boolean[] { true, false })
1970	>	for (boolean failFirst : new boolean[] { true, false })
1971	>	for (Integer v1 : new Integer[] { 1, null })
1972	>	{
1973	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1974	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1975	>	final CFException ex = new CFException();
1976	>	final Noop r1 = new Noop(m);
1977	>	final Noop r2 = new Noop(m);
1978	>	final Noop r3 = new Noop(m);
1979	>
1980	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1981	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1982	>	final Callable<Boolean> complete1 = failFirst ?
1983	>	() -> fst.completeExceptionally(ex) :
1984	>	() -> fst.complete(v1);
1985	>	final Callable<Boolean> complete2 = failFirst ?
1986	>	() -> snd.complete(v1) :
1987	>	() -> snd.completeExceptionally(ex);
1988	>
1989	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
1990	>	assertTrue(complete1.call());
1991	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
1992	>	checkIncomplete(h1);
1993	>	checkIncomplete(h2);
1994	>	assertTrue(complete2.call());
1995	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
1996	>
1997	>	checkCompletedWithWrappedException(h1, ex);
1998	>	checkCompletedWithWrappedException(h2, ex);
1999	>	checkCompletedWithWrappedException(h3, ex);
2000	>	r1.assertNotInvoked();
2001	>	r2.assertNotInvoked();
2002	>	r3.assertNotInvoked();
2003	>	checkCompletedNormally(failFirst ? snd : fst, v1);
2004	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
2005	>	}}
2006
2007		/**
2008	<	* runAfterEitherAsync result completes exceptionally if action does
2008	>	* runAfterBoth result completes exceptionally if either source cancelled
2009		*/
2010	<	public void testRunAfterEitherAsync3() {
2011	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2012	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2013	<	FailingNoop r = new FailingNoop();
2014	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
2015	<	f.complete(one);
2016	<	checkCompletedWithWrappedCFException(g);
2017	<	}
2010	>	public void testRunAfterBoth_sourceCancelled() throws Throwable {
2011	>	for (ExecutionMode m : ExecutionMode.values())
2012	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2013	>	for (boolean fFirst : new boolean[] { true, false })
2014	>	for (boolean failFirst : new boolean[] { true, false })
2015	>	for (Integer v1 : new Integer[] { 1, null })
2016	>	{
2017	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2018	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2019	>	final Noop r1 = new Noop(m);
2020	>	final Noop r2 = new Noop(m);
2021	>	final Noop r3 = new Noop(m);
2022	>
2023	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2024	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2025	>	final Callable<Boolean> complete1 = failFirst ?
2026	>	() -> fst.cancel(mayInterruptIfRunning) :
2027	>	() -> fst.complete(v1);
2028	>	final Callable<Boolean> complete2 = failFirst ?
2029	>	() -> snd.complete(v1) :
2030	>	() -> snd.cancel(mayInterruptIfRunning);
2031	>
2032	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2033	>	assertTrue(complete1.call());
2034	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2035	>	checkIncomplete(h1);
2036	>	checkIncomplete(h2);
2037	>	assertTrue(complete2.call());
2038	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2039	>
2040	>	checkCompletedWithWrappedCancellationException(h1);
2041	>	checkCompletedWithWrappedCancellationException(h2);
2042	>	checkCompletedWithWrappedCancellationException(h3);
2043	>	r1.assertNotInvoked();
2044	>	r2.assertNotInvoked();
2045	>	r3.assertNotInvoked();
2046	>	checkCompletedNormally(failFirst ? snd : fst, v1);
2047	>	checkCancelled(failFirst ? fst : snd);
2048	>	}}
2049
2050		/**
2051	<	* runAfterEitherAsync result completes exceptionally if either
2167	<	* source cancelled
2051	>	* runAfterBoth result completes exceptionally if action does
2052		*/
2053	<	public void testRunAfterEitherAsync4() {
2054	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2055	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2056	<	Noop r = new Noop();
2057	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
2058	<	assertTrue(f.cancel(true));
2059	<	checkCompletedWithWrappedCancellationException(g);
2060	<
2061	<	r = new Noop();
2062	<	f = new CompletableFuture<>();
2063	<	f2 = new CompletableFuture<>();
2064	<	assertTrue(f2.cancel(true));
2065	<	g = f.runAfterEitherAsync(f2, r);
2066	<	checkCompletedWithWrappedCancellationException(g);
2067	<	}
2053	>	public void testRunAfterBoth_actionFailed() {
2054	>	for (ExecutionMode m : ExecutionMode.values())
2055	>	for (boolean fFirst : new boolean[] { true, false })
2056	>	for (Integer v1 : new Integer[] { 1, null })
2057	>	for (Integer v2 : new Integer[] { 2, null })
2058	>	{
2059	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2060	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2061	>	final FailingRunnable r1 = new FailingRunnable(m);
2062	>	final FailingRunnable r2 = new FailingRunnable(m);
2063	>	final FailingRunnable r3 = new FailingRunnable(m);
2064	>
2065	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2066	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2067	>	final Integer w1 =  fFirst ? v1 : v2;
2068	>	final Integer w2 = !fFirst ? v1 : v2;
2069	>
2070	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2071	>	assertTrue(fst.complete(w1));
2072	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2073	>	assertTrue(snd.complete(w2));
2074	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2075	>
2076	>	checkCompletedWithWrappedCFException(h1);
2077	>	checkCompletedWithWrappedCFException(h2);
2078	>	checkCompletedWithWrappedCFException(h3);
2079	>	r1.assertInvoked();
2080	>	r2.assertInvoked();
2081	>	r3.assertInvoked();
2082	>	checkCompletedNormally(f, v1);
2083	>	checkCompletedNormally(g, v2);
2084	>	}}
2085
2086		/**
2087	<	* thenComposeAsync result completes normally after normal
2088	<	* completion of source
2087	>	* applyToEither result completes normally after normal completion
2088	>	* of either source
2089		*/
2090	<	public void testThenComposeAsync() {
2091	<	CompletableFuture<Integer> f, g;
2092	<	CompletableFutureInc r;
2093	<
2094	<	f = new CompletableFuture<>();
2095	<	g = f.thenComposeAsync(r = new CompletableFutureInc());
2096	<	f.complete(one);
2097	<	checkCompletedNormally(g, two);
2098	<
2198	<	f = new CompletableFuture<>();
2199	<	f.complete(one);
2200	<	g = f.thenComposeAsync(r = new CompletableFutureInc());
2201	<	checkCompletedNormally(g, two);
2202	<	}
2090	>	public void testApplyToEither_normalCompletion() {
2091	>	for (ExecutionMode m : ExecutionMode.values())
2092	>	for (Integer v1 : new Integer[] { 1, null })
2093	>	for (Integer v2 : new Integer[] { 2, null })
2094	>	{
2095	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2096	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2097	>	final IncFunction[] rs = new IncFunction[6];
2098	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2099
2100	<	/**
2101	<	* thenComposeAsync result completes exceptionally after
2102	<	* exceptional completion of source
2103	<	*/
2104	<	public void testThenComposeAsync2() {
2105	<	CompletableFuture<Integer> f, g;
2106	<	CompletableFutureInc r;
2100	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2101	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2102	>	checkIncomplete(h0);
2103	>	checkIncomplete(h1);
2104	>	rs[0].assertNotInvoked();
2105	>	rs[1].assertNotInvoked();
2106	>	f.complete(v1);
2107	>	checkCompletedNormally(h0, inc(v1));
2108	>	checkCompletedNormally(h1, inc(v1));
2109	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2110	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2111	>	checkCompletedNormally(h2, inc(v1));
2112	>	checkCompletedNormally(h3, inc(v1));
2113	>	g.complete(v2);
2114
2115	<	f = new CompletableFuture<>();
2116	<	g = f.thenComposeAsync(r = new CompletableFutureInc());
2117	<	f.completeExceptionally(new CFException());
2118	<	checkCompletedWithWrappedCFException(g);
2119	<	assertFalse(r.ran);
2115	>	// unspecified behavior - both source completions available
2116	>	final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2117	>	final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2118	>	rs[4].assertValue(h4.join());
2119	>	rs[5].assertValue(h5.join());
2120	>	assertTrue(Objects.equals(inc(v1), h4.join()) ||
2121	>	Objects.equals(inc(v2), h4.join()));
2122	>	assertTrue(Objects.equals(inc(v1), h5.join()) ||
2123	>	Objects.equals(inc(v2), h5.join()));
2124
2125	<	f = new CompletableFuture<>();
2126	<	f.completeExceptionally(new CFException());
2127	<	g = f.thenComposeAsync(r = new CompletableFutureInc());
2128	<	checkCompletedWithWrappedCFException(g);
2129	<	assertFalse(r.ran);
2130	<	}
2125	>	checkCompletedNormally(f, v1);
2126	>	checkCompletedNormally(g, v2);
2127	>	checkCompletedNormally(h0, inc(v1));
2128	>	checkCompletedNormally(h1, inc(v1));
2129	>	checkCompletedNormally(h2, inc(v1));
2130	>	checkCompletedNormally(h3, inc(v1));
2131	>	for (int i = 0; i < 4; i++) rs[i].assertValue(inc(v1));
2132	>	}}
2133
2134		/**
2135	<	* thenComposeAsync result completes exceptionally if action does
2135	>	* applyToEither result completes exceptionally after exceptional
2136	>	* completion of either source
2137		*/
2138	<	public void testThenComposeAsync3() {
2139	<	CompletableFuture<Integer> f, g;
2140	<	FailingCompletableFutureFunction r;
2138	>	public void testApplyToEither_exceptionalCompletion() {
2139	>	for (ExecutionMode m : ExecutionMode.values())
2140	>	for (Integer v1 : new Integer[] { 1, null })
2141	>	{
2142	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2143	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2144	>	final CFException ex = new CFException();
2145	>	final IncFunction[] rs = new IncFunction[6];
2146	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2147
2148	<	f = new CompletableFuture<>();
2149	<	g = f.thenComposeAsync(r = new FailingCompletableFutureFunction());
2150	<	f.complete(one);
2151	<	checkCompletedWithWrappedCFException(g);
2148	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2149	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2150	>	checkIncomplete(h0);
2151	>	checkIncomplete(h1);
2152	>	rs[0].assertNotInvoked();
2153	>	rs[1].assertNotInvoked();
2154	>	f.completeExceptionally(ex);
2155	>	checkCompletedWithWrappedException(h0, ex);
2156	>	checkCompletedWithWrappedException(h1, ex);
2157	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2158	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2159	>	checkCompletedWithWrappedException(h2, ex);
2160	>	checkCompletedWithWrappedException(h3, ex);
2161	>	g.complete(v1);
2162
2163	<	f = new CompletableFuture<>();
2164	<	f.complete(one);
2165	<	g = f.thenComposeAsync(r = new FailingCompletableFutureFunction());
2166	<	checkCompletedWithWrappedCFException(g);
2167	<	}
2163	>	// unspecified behavior - both source completions available
2164	>	final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2165	>	final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2166	>	try {
2167	>	assertEquals(inc(v1), h4.join());
2168	>	rs[4].assertValue(inc(v1));
2169	>	} catch (CompletionException ok) {
2170	>	checkCompletedWithWrappedException(h4, ex);
2171	>	rs[4].assertNotInvoked();
2172	>	}
2173	>	try {
2174	>	assertEquals(inc(v1), h5.join());
2175	>	rs[5].assertValue(inc(v1));
2176	>	} catch (CompletionException ok) {
2177	>	checkCompletedWithWrappedException(h5, ex);
2178	>	rs[5].assertNotInvoked();
2179	>	}
2180
2181	<	/**
2182	<	* thenComposeAsync result completes exceptionally if source cancelled
2183	<	*/
2184	<	public void testThenComposeAsync4() {
2185	<	CompletableFuture<Integer> f, g;
2186	<	CompletableFutureInc r;
2181	>	checkCompletedExceptionally(f, ex);
2182	>	checkCompletedNormally(g, v1);
2183	>	checkCompletedWithWrappedException(h0, ex);
2184	>	checkCompletedWithWrappedException(h1, ex);
2185	>	checkCompletedWithWrappedException(h2, ex);
2186	>	checkCompletedWithWrappedException(h3, ex);
2187	>	checkCompletedWithWrappedException(h4, ex);
2188	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2189	>	}}
2190
2191	<	f = new CompletableFuture<>();
2192	<	g = f.thenComposeAsync(r = new CompletableFutureInc());
2193	<	assertTrue(f.cancel(true));
2194	<	checkCompletedWithWrappedCancellationException(g);
2191	>	public void testApplyToEither_exceptionalCompletion2() {
2192	>	for (ExecutionMode m : ExecutionMode.values())
2193	>	for (boolean fFirst : new boolean[] { true, false })
2194	>	for (Integer v1 : new Integer[] { 1, null })
2195	>	{
2196	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2197	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2198	>	final CFException ex = new CFException();
2199	>	final IncFunction[] rs = new IncFunction[6];
2200	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2201
2202	<	f = new CompletableFuture<>();
2203	<	assertTrue(f.cancel(true));
2204	<	g = f.thenComposeAsync(r = new CompletableFutureInc());
2205	<	checkCompletedWithWrappedCancellationException(g);
2206	<	}
2202	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2203	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2204	>	assertTrue(fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2205	>	assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2206	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2207	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2208	>
2209	>	// unspecified behavior - both source completions available
2210	>	try {
2211	>	assertEquals(inc(v1), h0.join());
2212	>	rs[0].assertValue(inc(v1));
2213	>	} catch (CompletionException ok) {
2214	>	checkCompletedWithWrappedException(h0, ex);
2215	>	rs[0].assertNotInvoked();
2216	>	}
2217	>	try {
2218	>	assertEquals(inc(v1), h1.join());
2219	>	rs[1].assertValue(inc(v1));
2220	>	} catch (CompletionException ok) {
2221	>	checkCompletedWithWrappedException(h1, ex);
2222	>	rs[1].assertNotInvoked();
2223	>	}
2224	>	try {
2225	>	assertEquals(inc(v1), h2.join());
2226	>	rs[2].assertValue(inc(v1));
2227	>	} catch (CompletionException ok) {
2228	>	checkCompletedWithWrappedException(h2, ex);
2229	>	rs[2].assertNotInvoked();
2230	>	}
2231	>	try {
2232	>	assertEquals(inc(v1), h3.join());
2233	>	rs[3].assertValue(inc(v1));
2234	>	} catch (CompletionException ok) {
2235	>	checkCompletedWithWrappedException(h3, ex);
2236	>	rs[3].assertNotInvoked();
2237	>	}
2238
2239	<	// async with explicit executors
2239	>	checkCompletedNormally(f, v1);
2240	>	checkCompletedExceptionally(g, ex);
2241	>	}}
2242
2243		/**
2244	<	* thenRunAsync result completes normally after normal completion of source
2244	>	* applyToEither result completes exceptionally if either source cancelled
2245		*/
2246	<	public void testThenRunAsyncE() {
2247	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2248	<	Noop r = new Noop();
2249	<	CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
2250	<	f.complete(null);
2251	<	checkCompletedNormally(g, null);
2252	<
2253	<	// reordered version
2254	<	f = new CompletableFuture<>();
2275	<	f.complete(null);
2276	<	r = new Noop();
2277	<	g = f.thenRunAsync(r, new ThreadExecutor());
2278	<	checkCompletedNormally(g, null);
2279	<	}
2246	>	public void testApplyToEither_sourceCancelled() {
2247	>	for (ExecutionMode m : ExecutionMode.values())
2248	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2249	>	for (Integer v1 : new Integer[] { 1, null })
2250	>	{
2251	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2252	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2253	>	final IncFunction[] rs = new IncFunction[6];
2254	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2255
2256	<	/**
2257	<	* thenRunAsync result completes exceptionally after exceptional
2258	<	* completion of source
2259	<	*/
2260	<	public void testThenRunAsync2E() {
2261	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2262	<	Noop r = new Noop();
2263	<	CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
2264	<	f.completeExceptionally(new CFException());
2265	<	try {
2266	<	g.join();
2267	<	shouldThrow();
2268	<	} catch (CompletionException success) {}
2269	<	checkCompletedWithWrappedCFException(g);
2295	<	}
2256	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2257	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2258	>	checkIncomplete(h0);
2259	>	checkIncomplete(h1);
2260	>	rs[0].assertNotInvoked();
2261	>	rs[1].assertNotInvoked();
2262	>	f.cancel(mayInterruptIfRunning);
2263	>	checkCompletedWithWrappedCancellationException(h0);
2264	>	checkCompletedWithWrappedCancellationException(h1);
2265	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2266	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2267	>	checkCompletedWithWrappedCancellationException(h2);
2268	>	checkCompletedWithWrappedCancellationException(h3);
2269	>	g.complete(v1);
2270
2271	<	/**
2272	<	* thenRunAsync result completes exceptionally if action does
2273	<	*/
2274	<	public void testThenRunAsync3E() {
2275	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2276	<	FailingNoop r = new FailingNoop();
2277	<	CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
2278	<	f.complete(null);
2279	<	checkCompletedWithWrappedCFException(g);
2280	<	}
2271	>	// unspecified behavior - both source completions available
2272	>	final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2273	>	final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2274	>	try {
2275	>	assertEquals(inc(v1), h4.join());
2276	>	rs[4].assertValue(inc(v1));
2277	>	} catch (CompletionException ok) {
2278	>	checkCompletedWithWrappedCancellationException(h4);
2279	>	rs[4].assertNotInvoked();
2280	>	}
2281	>	try {
2282	>	assertEquals(inc(v1), h5.join());
2283	>	rs[5].assertValue(inc(v1));
2284	>	} catch (CompletionException ok) {
2285	>	checkCompletedWithWrappedCancellationException(h5);
2286	>	rs[5].assertNotInvoked();
2287	>	}
2288
2289	<	/**
2290	<	* thenRunAsync result completes exceptionally if source cancelled
2291	<	*/
2292	<	public void testThenRunAsync4E() {
2293	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2294	<	Noop r = new Noop();
2295	<	CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
2296	<	assertTrue(f.cancel(true));
2316	<	checkCompletedWithWrappedCancellationException(g);
2317	<	}
2289	>	checkCancelled(f);
2290	>	checkCompletedNormally(g, v1);
2291	>	checkCompletedWithWrappedCancellationException(h0);
2292	>	checkCompletedWithWrappedCancellationException(h1);
2293	>	checkCompletedWithWrappedCancellationException(h2);
2294	>	checkCompletedWithWrappedCancellationException(h3);
2295	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2296	>	}}
2297
2298	<	/**
2299	<	* thenApplyAsync result completes normally after normal completion of source
2300	<	*/
2301	<	public void testThenApplyAsyncE() {
2302	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2303	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc, new ThreadExecutor());
2304	<	f.complete(one);
2305	<	checkCompletedNormally(g, two);
2306	<	}
2298	>	public void testApplyToEither_sourceCancelled2() {
2299	>	for (ExecutionMode m : ExecutionMode.values())
2300	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2301	>	for (boolean fFirst : new boolean[] { true, false })
2302	>	for (Integer v1 : new Integer[] { 1, null })
2303	>	{
2304	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2305	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2306	>	final IncFunction[] rs = new IncFunction[6];
2307	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2308
2309	<	/**
2310	<	* thenApplyAsync result completes exceptionally after exceptional
2311	<	* completion of source
2312	<	*/
2313	<	public void testThenApplyAsync2E() {
2314	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2315	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc, new ThreadExecutor());
2316	<	f.completeExceptionally(new CFException());
2317	<	checkCompletedWithWrappedCFException(g);
2318	<	}
2309	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2310	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2311	>	assertTrue(fFirst ? f.complete(v1) : g.cancel(mayInterruptIfRunning));
2312	>	assertTrue(!fFirst ? f.complete(v1) : g.cancel(mayInterruptIfRunning));
2313	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2314	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2315	>
2316	>	// unspecified behavior - both source completions available
2317	>	try {
2318	>	assertEquals(inc(v1), h0.join());
2319	>	rs[0].assertValue(inc(v1));
2320	>	} catch (CompletionException ok) {
2321	>	checkCompletedWithWrappedCancellationException(h0);
2322	>	rs[0].assertNotInvoked();
2323	>	}
2324	>	try {
2325	>	assertEquals(inc(v1), h1.join());
2326	>	rs[1].assertValue(inc(v1));
2327	>	} catch (CompletionException ok) {
2328	>	checkCompletedWithWrappedCancellationException(h1);
2329	>	rs[1].assertNotInvoked();
2330	>	}
2331	>	try {
2332	>	assertEquals(inc(v1), h2.join());
2333	>	rs[2].assertValue(inc(v1));
2334	>	} catch (CompletionException ok) {
2335	>	checkCompletedWithWrappedCancellationException(h2);
2336	>	rs[2].assertNotInvoked();
2337	>	}
2338	>	try {
2339	>	assertEquals(inc(v1), h3.join());
2340	>	rs[3].assertValue(inc(v1));
2341	>	} catch (CompletionException ok) {
2342	>	checkCompletedWithWrappedCancellationException(h3);
2343	>	rs[3].assertNotInvoked();
2344	>	}
2345
2346	<	/**
2347	<	* thenApplyAsync result completes exceptionally if action does
2348	<	*/
2343	<	public void testThenApplyAsync3E() {
2344	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2345	<	FailingFunction r = new FailingFunction();
2346	<	CompletableFuture<Integer> g = f.thenApplyAsync(r, new ThreadExecutor());
2347	<	f.complete(null);
2348	<	checkCompletedWithWrappedCFException(g);
2349	<	}
2346	>	checkCompletedNormally(f, v1);
2347	>	checkCancelled(g);
2348	>	}}
2349
2350		/**
2351	<	* thenApplyAsync result completes exceptionally if source cancelled
2351	>	* applyToEither result completes exceptionally if action does
2352		*/
2353	<	public void testThenApplyAsync4E() {
2354	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2355	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc, new ThreadExecutor());
2356	<	assertTrue(f.cancel(true));
2357	<	checkCompletedWithWrappedCancellationException(g);
2358	<	}
2353	>	public void testApplyToEither_actionFailed() {
2354	>	for (ExecutionMode m : ExecutionMode.values())
2355	>	for (Integer v1 : new Integer[] { 1, null })
2356	>	for (Integer v2 : new Integer[] { 2, null })
2357	>	{
2358	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2359	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2360	>	final FailingFunction[] rs = new FailingFunction[6];
2361	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingFunction(m);
2362
2363	<	/**
2364	<	* thenAcceptAsync result completes normally after normal
2365	<	* completion of source
2366	<	*/
2367	<	public void testThenAcceptAsyncE() {
2368	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2369	<	IncAction r = new IncAction();
2370	<	CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
2371	<	f.complete(one);
2372	<	checkCompletedNormally(g, null);
2371	<	assertEquals(r.value, 2);
2372	<	}
2363	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2364	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2365	>	f.complete(v1);
2366	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2367	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2368	>	checkCompletedWithWrappedCFException(h0);
2369	>	checkCompletedWithWrappedCFException(h1);
2370	>	checkCompletedWithWrappedCFException(h2);
2371	>	checkCompletedWithWrappedCFException(h3);
2372	>	for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2373
2374	<	/**
2375	<	* thenAcceptAsync result completes exceptionally after exceptional
2376	<	* completion of source
2377	<	*/
2378	<	public void testThenAcceptAsync2E() {
2379	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2380	<	IncAction r = new IncAction();
2381	<	CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
2382	<	f.completeExceptionally(new CFException());
2383	<	checkCompletedWithWrappedCFException(g);
2384	<	}
2374	>	g.complete(v2);
2375
2376	<	/**
2377	<	* thenAcceptAsync result completes exceptionally if action does
2378	<	*/
2379	<	public void testThenAcceptAsync3E() {
2380	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2381	<	FailingConsumer r = new FailingConsumer();
2382	<	CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
2383	<	f.complete(null);
2384	<	checkCompletedWithWrappedCFException(g);
2385	<	}
2376	>	// unspecified behavior - both source completions available
2377	>	final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2378	>	final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2379	>
2380	>	checkCompletedWithWrappedCFException(h4);
2381	>	assertTrue(Objects.equals(v1, rs[4].value) ||
2382	>	Objects.equals(v2, rs[4].value));
2383	>	checkCompletedWithWrappedCFException(h5);
2384	>	assertTrue(Objects.equals(v1, rs[5].value) ||
2385	>	Objects.equals(v2, rs[5].value));
2386
2387	<	/**
2388	<	* thenAcceptAsync result completes exceptionally if source cancelled
2389	<	*/
2400	<	public void testThenAcceptAsync4E() {
2401	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2402	<	IncAction r = new IncAction();
2403	<	CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
2404	<	assertTrue(f.cancel(true));
2405	<	checkCompletedWithWrappedCancellationException(g);
2406	<	}
2387	>	checkCompletedNormally(f, v1);
2388	>	checkCompletedNormally(g, v2);
2389	>	}}
2390
2391		/**
2392	<	* thenCombineAsync result completes normally after normal
2393	<	* completion of sources
2392	>	* acceptEither result completes normally after normal completion
2393	>	* of either source
2394		*/
2395	<	public void testThenCombineAsyncE() {
2396	<	CompletableFuture<Integer> f, g, h;
2397	<	ThreadExecutor e = new ThreadExecutor();
2398	<	int count = 0;
2395	>	public void testAcceptEither_normalCompletion() {
2396	>	for (ExecutionMode m : ExecutionMode.values())
2397	>	for (Integer v1 : new Integer[] { 1, null })
2398	>	for (Integer v2 : new Integer[] { 2, null })
2399	>	{
2400	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2401	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2402	>	final NoopConsumer[] rs = new NoopConsumer[6];
2403	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2404
2405	<	f = new CompletableFuture<>();
2406	<	g = new CompletableFuture<>();
2407	<	h = f.thenCombineAsync(g, subtract, e);
2408	<	f.complete(3);
2409	<	checkIncomplete(h);
2410	<	g.complete(1);
2411	<	checkCompletedNormally(h, 2);
2412	<	assertEquals(++count, e.count.get());
2405	>	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2406	>	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2407	>	checkIncomplete(h0);
2408	>	checkIncomplete(h1);
2409	>	rs[0].assertNotInvoked();
2410	>	rs[1].assertNotInvoked();
2411	>	f.complete(v1);
2412	>	checkCompletedNormally(h0, null);
2413	>	checkCompletedNormally(h1, null);
2414	>	rs[0].assertValue(v1);
2415	>	rs[1].assertValue(v1);
2416	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2417	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2418	>	checkCompletedNormally(h2, null);
2419	>	checkCompletedNormally(h3, null);
2420	>	rs[2].assertValue(v1);
2421	>	rs[3].assertValue(v1);
2422	>	g.complete(v2);
2423
2424	<	f = new CompletableFuture<>();
2425	<	g = new CompletableFuture<>();
2426	<	h = f.thenCombineAsync(g, subtract, e);
2427	<	g.complete(1);
2428	<	checkIncomplete(h);
2429	<	f.complete(3);
2430	<	checkCompletedNormally(h, 2);
2431	<	assertEquals(++count, e.count.get());
2424	>	// unspecified behavior - both source completions available
2425	>	final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2426	>	final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2427	>	checkCompletedNormally(h4, null);
2428	>	checkCompletedNormally(h5, null);
2429	>	assertTrue(Objects.equals(v1, rs[4].value) ||
2430	>	Objects.equals(v2, rs[4].value));
2431	>	assertTrue(Objects.equals(v1, rs[5].value) ||
2432	>	Objects.equals(v2, rs[5].value));
2433
2434	<	f = new CompletableFuture<>();
2435	<	g = new CompletableFuture<>();
2436	<	g.complete(1);
2437	<	f.complete(3);
2438	<	h = f.thenCombineAsync(g, subtract, e);
2439	<	checkCompletedNormally(h, 2);
2440	<	assertEquals(++count, e.count.get());
2441	<	}
2434	>	checkCompletedNormally(f, v1);
2435	>	checkCompletedNormally(g, v2);
2436	>	checkCompletedNormally(h0, null);
2437	>	checkCompletedNormally(h1, null);
2438	>	checkCompletedNormally(h2, null);
2439	>	checkCompletedNormally(h3, null);
2440	>	for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2441	>	}}
2442
2443		/**
2444	<	* thenCombineAsync result completes exceptionally after exceptional
2444	>	* acceptEither result completes exceptionally after exceptional
2445		* completion of either source
2446		*/
2447	<	public void testThenCombineAsync2E() {
2448	<	CompletableFuture<Integer> f, g, h;
2449	<	ThreadExecutor e = new ThreadExecutor();
2450	<	int count = 0;
2451	<
2452	<	f = new CompletableFuture<>();
2453	<	g = new CompletableFuture<>();
2454	<	h = f.thenCombineAsync(g, subtract, e);
2455	<	f.completeExceptionally(new CFException());
2457	<	checkIncomplete(h);
2458	<	g.complete(1);
2459	<	checkCompletedWithWrappedCFException(h);
2460	<
2461	<	f = new CompletableFuture<>();
2462	<	g = new CompletableFuture<>();
2463	<	h = f.thenCombineAsync(g, subtract, e);
2464	<	g.completeExceptionally(new CFException());
2465	<	checkIncomplete(h);
2466	<	f.complete(3);
2467	<	checkCompletedWithWrappedCFException(h);
2468	<
2469	<	f = new CompletableFuture<>();
2470	<	g = new CompletableFuture<>();
2471	<	g.completeExceptionally(new CFException());
2472	<	h = f.thenCombineAsync(g, subtract, e);
2473	<	checkIncomplete(h);
2474	<	f.complete(3);
2475	<	checkCompletedWithWrappedCFException(h);
2476	<
2477	<	assertEquals(0, e.count.get());
2478	<	}
2447	>	public void testAcceptEither_exceptionalCompletion() {
2448	>	for (ExecutionMode m : ExecutionMode.values())
2449	>	for (Integer v1 : new Integer[] { 1, null })
2450	>	{
2451	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2452	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2453	>	final CFException ex = new CFException();
2454	>	final NoopConsumer[] rs = new NoopConsumer[6];
2455	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2456
2457	<	/**
2458	<	* thenCombineAsync result completes exceptionally if action does
2459	<	*/
2460	<	public void testThenCombineAsync3E() {
2461	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2462	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2463	<	FailingBiFunction r = new FailingBiFunction();
2464	<	CompletableFuture<Integer> g = f.thenCombineAsync(f2, r, new ThreadExecutor());
2465	<	f.complete(one);
2466	<	checkIncomplete(g);
2467	<	assertFalse(r.ran);
2468	<	f2.complete(two);
2469	<	checkCompletedWithWrappedCFException(g);
2493	<	assertTrue(r.ran);
2494	<	}
2457	>	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2458	>	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2459	>	checkIncomplete(h0);
2460	>	checkIncomplete(h1);
2461	>	rs[0].assertNotInvoked();
2462	>	rs[1].assertNotInvoked();
2463	>	f.completeExceptionally(ex);
2464	>	checkCompletedWithWrappedException(h0, ex);
2465	>	checkCompletedWithWrappedException(h1, ex);
2466	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2467	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2468	>	checkCompletedWithWrappedException(h2, ex);
2469	>	checkCompletedWithWrappedException(h3, ex);
2470
2471	<	/**
2497	<	* thenCombineAsync result completes exceptionally if either source cancelled
2498	<	*/
2499	<	public void testThenCombineAsync4E() {
2500	<	CompletableFuture<Integer> f, g, h;
2501	<	ThreadExecutor e = new ThreadExecutor();
2471	>	g.complete(v1);
2472
2473	<	f = new CompletableFuture<>();
2474	<	g = new CompletableFuture<>();
2475	<	h = f.thenCombineAsync(g, subtract, e);
2476	<	assertTrue(f.cancel(true));
2477	<	checkIncomplete(h);
2478	<	g.complete(1);
2479	<	checkCompletedWithWrappedCancellationException(h);
2473	>	// unspecified behavior - both source completions available
2474	>	final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2475	>	final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2476	>	try {
2477	>	assertNull(h4.join());
2478	>	rs[4].assertValue(v1);
2479	>	} catch (CompletionException ok) {
2480	>	checkCompletedWithWrappedException(h4, ex);
2481	>	rs[4].assertNotInvoked();
2482	>	}
2483	>	try {
2484	>	assertNull(h5.join());
2485	>	rs[5].assertValue(v1);
2486	>	} catch (CompletionException ok) {
2487	>	checkCompletedWithWrappedException(h5, ex);
2488	>	rs[5].assertNotInvoked();
2489	>	}
2490
2491	<	f = new CompletableFuture<>();
2492	<	g = new CompletableFuture<>();
2493	<	h = f.thenCombineAsync(g, subtract, e);
2494	<	assertTrue(g.cancel(true));
2495	<	checkIncomplete(h);
2496	<	f.complete(3);
2497	<	checkCompletedWithWrappedCancellationException(h);
2491	>	checkCompletedExceptionally(f, ex);
2492	>	checkCompletedNormally(g, v1);
2493	>	checkCompletedWithWrappedException(h0, ex);
2494	>	checkCompletedWithWrappedException(h1, ex);
2495	>	checkCompletedWithWrappedException(h2, ex);
2496	>	checkCompletedWithWrappedException(h3, ex);
2497	>	checkCompletedWithWrappedException(h4, ex);
2498	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2499	>	}}
2500
2501	<	f = new CompletableFuture<>();
2502	<	g = new CompletableFuture<>();
2503	<	assertTrue(g.cancel(true));
2504	<	h = f.thenCombineAsync(g, subtract, e);
2505	<	checkIncomplete(h);
2506	<	f.complete(3);
2507	<	checkCompletedWithWrappedCancellationException(h);
2501	>	public void testAcceptEither_exceptionalCompletion2() {
2502	>	for (ExecutionMode m : ExecutionMode.values())
2503	>	for (boolean fFirst : new boolean[] { true, false })
2504	>	for (Integer v1 : new Integer[] { 1, null })
2505	>	{
2506	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2507	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2508	>	final CFException ex = new CFException();
2509	>	final NoopConsumer[] rs = new NoopConsumer[6];
2510	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2511
2512	<	f = new CompletableFuture<>();
2513	<	g = new CompletableFuture<>();
2514	<	assertTrue(f.cancel(true));
2515	<	assertTrue(g.cancel(true));
2516	<	h = f.thenCombineAsync(g, subtract, e);
2517	<	checkCompletedWithWrappedCancellationException(h);
2512	>	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2513	>	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2514	>	assertTrue(fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2515	>	assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2516	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2517	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2518	>
2519	>	// unspecified behavior - both source completions available
2520	>	try {
2521	>	assertEquals(null, h0.join());
2522	>	rs[0].assertValue(v1);
2523	>	} catch (CompletionException ok) {
2524	>	checkCompletedWithWrappedException(h0, ex);
2525	>	rs[0].assertNotInvoked();
2526	>	}
2527	>	try {
2528	>	assertEquals(null, h1.join());
2529	>	rs[1].assertValue(v1);
2530	>	} catch (CompletionException ok) {
2531	>	checkCompletedWithWrappedException(h1, ex);
2532	>	rs[1].assertNotInvoked();
2533	>	}
2534	>	try {
2535	>	assertEquals(null, h2.join());
2536	>	rs[2].assertValue(v1);
2537	>	} catch (CompletionException ok) {
2538	>	checkCompletedWithWrappedException(h2, ex);
2539	>	rs[2].assertNotInvoked();
2540	>	}
2541	>	try {
2542	>	assertEquals(null, h3.join());
2543	>	rs[3].assertValue(v1);
2544	>	} catch (CompletionException ok) {
2545	>	checkCompletedWithWrappedException(h3, ex);
2546	>	rs[3].assertNotInvoked();
2547	>	}
2548
2549	<	assertEquals(0, e.count.get());
2550	<	}
2549	>	checkCompletedNormally(f, v1);
2550	>	checkCompletedExceptionally(g, ex);
2551	>	}}
2552
2553		/**
2554	<	* thenAcceptBothAsync result completes normally after normal
2539	<	* completion of sources
2554	>	* acceptEither result completes exceptionally if either source cancelled
2555		*/
2556	<	public void testThenAcceptBothAsyncE() {
2557	<	CompletableFuture<Integer> f, g;
2558	<	CompletableFuture<Void> h;
2559	<	SubtractAction r;
2560	<	ThreadExecutor e = new ThreadExecutor();
2556	>	public void testAcceptEither_sourceCancelled() {
2557	>	for (ExecutionMode m : ExecutionMode.values())
2558	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2559	>	for (Integer v1 : new Integer[] { 1, null })
2560	>	{
2561	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2562	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2563	>	final NoopConsumer[] rs = new NoopConsumer[6];
2564	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2565
2566	<	f = new CompletableFuture<>();
2567	<	g = new CompletableFuture<>();
2568	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2569	<	f.complete(3);
2570	<	checkIncomplete(h);
2571	<	g.complete(1);
2572	<	checkCompletedNormally(h, null);
2573	<	assertEquals(r.value, 2);
2566	>	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2567	>	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2568	>	checkIncomplete(h0);
2569	>	checkIncomplete(h1);
2570	>	rs[0].assertNotInvoked();
2571	>	rs[1].assertNotInvoked();
2572	>	f.cancel(mayInterruptIfRunning);
2573	>	checkCompletedWithWrappedCancellationException(h0);
2574	>	checkCompletedWithWrappedCancellationException(h1);
2575	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2576	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2577	>	checkCompletedWithWrappedCancellationException(h2);
2578	>	checkCompletedWithWrappedCancellationException(h3);
2579
2580	<	f = new CompletableFuture<>();
2557	<	g = new CompletableFuture<>();
2558	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2559	<	g.complete(1);
2560	<	checkIncomplete(h);
2561	<	f.complete(3);
2562	<	checkCompletedNormally(h, null);
2563	<	assertEquals(r.value, 2);
2580	>	g.complete(v1);
2581
2582	<	f = new CompletableFuture<>();
2583	<	g = new CompletableFuture<>();
2584	<	g.complete(1);
2585	<	f.complete(3);
2586	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2587	<	checkCompletedNormally(h, null);
2588	<	assertEquals(r.value, 2);
2582	>	// unspecified behavior - both source completions available
2583	>	final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2584	>	final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2585	>	try {
2586	>	assertNull(h4.join());
2587	>	rs[4].assertValue(v1);
2588	>	} catch (CompletionException ok) {
2589	>	checkCompletedWithWrappedCancellationException(h4);
2590	>	rs[4].assertNotInvoked();
2591	>	}
2592	>	try {
2593	>	assertNull(h5.join());
2594	>	rs[5].assertValue(v1);
2595	>	} catch (CompletionException ok) {
2596	>	checkCompletedWithWrappedCancellationException(h5);
2597	>	rs[5].assertNotInvoked();
2598	>	}
2599
2600	<	assertEquals(3, e.count.get());
2601	<	}
2600	>	checkCancelled(f);
2601	>	checkCompletedNormally(g, v1);
2602	>	checkCompletedWithWrappedCancellationException(h0);
2603	>	checkCompletedWithWrappedCancellationException(h1);
2604	>	checkCompletedWithWrappedCancellationException(h2);
2605	>	checkCompletedWithWrappedCancellationException(h3);
2606	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2607	>	}}
2608
2609		/**
2610	<	* thenAcceptBothAsync result completes exceptionally after exceptional
2578	<	* completion of source
2610	>	* acceptEither result completes exceptionally if action does
2611		*/
2612	<	public void testThenAcceptBothAsync2E() {
2613	<	CompletableFuture<Integer> f, g;
2614	<	CompletableFuture<Void> h;
2615	<	SubtractAction r;
2616	<	ThreadExecutor e = new ThreadExecutor();
2617	<
2618	<	f = new CompletableFuture<>();
2619	<	g = new CompletableFuture<>();
2620	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2589	<	f.completeExceptionally(new CFException());
2590	<	checkIncomplete(h);
2591	<	g.complete(1);
2592	<	checkCompletedWithWrappedCFException(h);
2593	<
2594	<	f = new CompletableFuture<>();
2595	<	g = new CompletableFuture<>();
2596	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2597	<	g.completeExceptionally(new CFException());
2598	<	checkIncomplete(h);
2599	<	f.complete(3);
2600	<	checkCompletedWithWrappedCFException(h);
2601	<
2602	<	f = new CompletableFuture<>();
2603	<	g = new CompletableFuture<>();
2604	<	f.complete(3);
2605	<	g.completeExceptionally(new CFException());
2606	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2607	<	checkCompletedWithWrappedCFException(h);
2608	<
2609	<	f = new CompletableFuture<>();
2610	<	g = new CompletableFuture<>();
2611	<	f.completeExceptionally(new CFException());
2612	<	g.complete(3);
2613	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2614	<	checkCompletedWithWrappedCFException(h);
2615	<
2616	<	assertEquals(0, e.count.get());
2617	<	}
2612	>	public void testAcceptEither_actionFailed() {
2613	>	for (ExecutionMode m : ExecutionMode.values())
2614	>	for (Integer v1 : new Integer[] { 1, null })
2615	>	for (Integer v2 : new Integer[] { 2, null })
2616	>	{
2617	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2618	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2619	>	final FailingConsumer[] rs = new FailingConsumer[6];
2620	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingConsumer(m);
2621
2622	<	/**
2623	<	* thenAcceptBothAsync result completes exceptionally if action does
2624	<	*/
2625	<	public void testThenAcceptBothAsync3E() {
2626	<	CompletableFuture<Integer> f, g;
2627	<	CompletableFuture<Void> h;
2628	<	FailingBiConsumer r;
2629	<	ThreadExecutor e = new ThreadExecutor();
2622	>	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2623	>	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2624	>	f.complete(v1);
2625	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2626	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2627	>	checkCompletedWithWrappedCFException(h0);
2628	>	checkCompletedWithWrappedCFException(h1);
2629	>	checkCompletedWithWrappedCFException(h2);
2630	>	checkCompletedWithWrappedCFException(h3);
2631	>	for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2632
2633	<	f = new CompletableFuture<>();
2629	<	g = new CompletableFuture<>();
2630	<	h = f.thenAcceptBothAsync(g, r = new FailingBiConsumer(), e);
2631	<	f.complete(3);
2632	<	checkIncomplete(h);
2633	<	g.complete(1);
2634	<	checkCompletedWithWrappedCFException(h);
2633	>	g.complete(v2);
2634
2635	<	f = new CompletableFuture<>();
2636	<	g = new CompletableFuture<>();
2637	<	f.complete(3);
2638	<	g.complete(1);
2639	<	h = f.thenAcceptBothAsync(g, r = new FailingBiConsumer(), e);
2640	<	checkCompletedWithWrappedCFException(h);
2635	>	// unspecified behavior - both source completions available
2636	>	final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2637	>	final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2638	>
2639	>	checkCompletedWithWrappedCFException(h4);
2640	>	assertTrue(Objects.equals(v1, rs[4].value) ||
2641	>	Objects.equals(v2, rs[4].value));
2642	>	checkCompletedWithWrappedCFException(h5);
2643	>	assertTrue(Objects.equals(v1, rs[5].value) ||
2644	>	Objects.equals(v2, rs[5].value));
2645
2646	<	assertEquals(2, e.count.get());
2647	<	}
2646	>	checkCompletedNormally(f, v1);
2647	>	checkCompletedNormally(g, v2);
2648	>	}}
2649
2650		/**
2651	<	* thenAcceptBothAsync result completes exceptionally if either source cancelled
2651	>	* runAfterEither result completes normally after normal completion
2652	>	* of either source
2653		*/
2654	<	public void testThenAcceptBothAsync4E() {
2655	<	CompletableFuture<Integer> f, g;
2656	<	CompletableFuture<Void> h;
2657	<	SubtractAction r;
2658	<	ThreadExecutor e = new ThreadExecutor();
2659	<
2660	<	f = new CompletableFuture<>();
2661	<	g = new CompletableFuture<>();
2662	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2658	<	assertTrue(f.cancel(true));
2659	<	checkIncomplete(h);
2660	<	g.complete(1);
2661	<	checkCompletedWithWrappedCancellationException(h);
2654	>	public void testRunAfterEither_normalCompletion() {
2655	>	for (ExecutionMode m : ExecutionMode.values())
2656	>	for (Integer v1 : new Integer[] { 1, null })
2657	>	for (Integer v2 : new Integer[] { 2, null })
2658	>	{
2659	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2660	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2661	>	final Noop[] rs = new Noop[6];
2662	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2663
2664	<	f = new CompletableFuture<>();
2665	<	g = new CompletableFuture<>();
2666	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2667	<	assertTrue(g.cancel(true));
2668	<	checkIncomplete(h);
2669	<	f.complete(3);
2670	<	checkCompletedWithWrappedCancellationException(h);
2664	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2665	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2666	>	checkIncomplete(h0);
2667	>	checkIncomplete(h1);
2668	>	rs[0].assertNotInvoked();
2669	>	rs[1].assertNotInvoked();
2670	>	f.complete(v1);
2671	>	checkCompletedNormally(h0, null);
2672	>	checkCompletedNormally(h1, null);
2673	>	rs[0].assertInvoked();
2674	>	rs[1].assertInvoked();
2675	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2676	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2677	>	checkCompletedNormally(h2, null);
2678	>	checkCompletedNormally(h3, null);
2679	>	rs[2].assertInvoked();
2680	>	rs[3].assertInvoked();
2681
2682	<	f = new CompletableFuture<>();
2672	<	g = new CompletableFuture<>();
2673	<	f.complete(3);
2674	<	assertTrue(g.cancel(true));
2675	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2676	<	checkCompletedWithWrappedCancellationException(h);
2682	>	g.complete(v2);
2683
2684	<	f = new CompletableFuture<>();
2685	<	g = new CompletableFuture<>();
2680	<	assertTrue(f.cancel(true));
2681	<	g.complete(3);
2682	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2683	<	checkCompletedWithWrappedCancellationException(h);
2684	>	final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2685	>	final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2686
2687	<	assertEquals(0, e.count.get());
2688	<	}
2687	>	checkCompletedNormally(f, v1);
2688	>	checkCompletedNormally(g, v2);
2689	>	checkCompletedNormally(h0, null);
2690	>	checkCompletedNormally(h1, null);
2691	>	checkCompletedNormally(h2, null);
2692	>	checkCompletedNormally(h3, null);
2693	>	checkCompletedNormally(h4, null);
2694	>	checkCompletedNormally(h5, null);
2695	>	for (int i = 0; i < 6; i++) rs[i].assertInvoked();
2696	>	}}
2697
2698		/**
2699	<	* applyToEitherAsync result completes normally after normal
2700	<	* completion of sources
2699	>	* runAfterEither result completes exceptionally after exceptional
2700	>	* completion of either source
2701		*/
2702	<	public void testApplyToEitherAsyncE() {
2703	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2704	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2705	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
2706	<	f.complete(one);
2707	<	checkCompletedNormally(g, two);
2708	<
2709	<	f = new CompletableFuture<>();
2710	<	f.complete(one);
2701	<	f2 = new CompletableFuture<>();
2702	<	g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
2703	<	checkCompletedNormally(g, two);
2704	<	}
2702	>	public void testRunAfterEither_exceptionalCompletion() {
2703	>	for (ExecutionMode m : ExecutionMode.values())
2704	>	for (Integer v1 : new Integer[] { 1, null })
2705	>	{
2706	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2707	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2708	>	final CFException ex = new CFException();
2709	>	final Noop[] rs = new Noop[6];
2710	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2711
2712	<	/**
2713	<	* applyToEitherAsync result completes exceptionally after exceptional
2714	<	* completion of source
2715	<	*/
2716	<	public void testApplyToEitherAsync2E() {
2717	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2718	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2719	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
2720	<	f.completeExceptionally(new CFException());
2721	<	checkCompletedWithWrappedCFException(g);
2712	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2713	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2714	>	checkIncomplete(h0);
2715	>	checkIncomplete(h1);
2716	>	rs[0].assertNotInvoked();
2717	>	rs[1].assertNotInvoked();
2718	>	assertTrue(f.completeExceptionally(ex));
2719	>	checkCompletedWithWrappedException(h0, ex);
2720	>	checkCompletedWithWrappedException(h1, ex);
2721	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2722	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2723	>	checkCompletedWithWrappedException(h2, ex);
2724	>	checkCompletedWithWrappedException(h3, ex);
2725	>
2726	>	assertTrue(g.complete(v1));
2727	>
2728	>	// unspecified behavior - both source completions available
2729	>	final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2730	>	final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2731	>	try {
2732	>	assertNull(h4.join());
2733	>	rs[4].assertInvoked();
2734	>	} catch (CompletionException ok) {
2735	>	checkCompletedWithWrappedException(h4, ex);
2736	>	rs[4].assertNotInvoked();
2737	>	}
2738	>	try {
2739	>	assertNull(h5.join());
2740	>	rs[5].assertInvoked();
2741	>	} catch (CompletionException ok) {
2742	>	checkCompletedWithWrappedException(h5, ex);
2743	>	rs[5].assertNotInvoked();
2744	>	}
2745
2746	<	f = new CompletableFuture<>();
2747	<	f2 = new CompletableFuture<>();
2748	<	f2.completeExceptionally(new CFException());
2749	<	g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
2750	<	f.complete(one);
2751	<	checkCompletedWithWrappedCFException(g);
2752	<	}
2746	>	checkCompletedExceptionally(f, ex);
2747	>	checkCompletedNormally(g, v1);
2748	>	checkCompletedWithWrappedException(h0, ex);
2749	>	checkCompletedWithWrappedException(h1, ex);
2750	>	checkCompletedWithWrappedException(h2, ex);
2751	>	checkCompletedWithWrappedException(h3, ex);
2752	>	checkCompletedWithWrappedException(h4, ex);
2753	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2754	>	}}
2755
2756	<	/**
2757	<	* applyToEitherAsync result completes exceptionally if action does
2758	<	*/
2759	<	public void testApplyToEitherAsync3E() {
2760	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2761	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2762	<	FailingFunction r = new FailingFunction();
2763	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, r, new ThreadExecutor());
2764	<	f.complete(one);
2765	<	checkCompletedWithWrappedCFException(g);
2735	<	}
2756	>	public void testRunAfterEither_exceptionalCompletion2() {
2757	>	for (ExecutionMode m : ExecutionMode.values())
2758	>	for (boolean fFirst : new boolean[] { true, false })
2759	>	for (Integer v1 : new Integer[] { 1, null })
2760	>	{
2761	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2762	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2763	>	final CFException ex = new CFException();
2764	>	final Noop[] rs = new Noop[6];
2765	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2766
2767	<	/**
2768	<	* applyToEitherAsync result completes exceptionally if either source cancelled
2769	<	*/
2770	<	public void testApplyToEitherAsync4E() {
2771	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2772	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2773	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
2774	<	assertTrue(f.cancel(true));
2775	<	checkCompletedWithWrappedCancellationException(g);
2767	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2768	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2769	>	assertTrue( fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2770	>	assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2771	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2772	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2773	>
2774	>	// unspecified behavior - both source completions available
2775	>	try {
2776	>	assertEquals(null, h0.join());
2777	>	rs[0].assertInvoked();
2778	>	} catch (CompletionException ok) {
2779	>	checkCompletedWithWrappedException(h0, ex);
2780	>	rs[0].assertNotInvoked();
2781	>	}
2782	>	try {
2783	>	assertEquals(null, h1.join());
2784	>	rs[1].assertInvoked();
2785	>	} catch (CompletionException ok) {
2786	>	checkCompletedWithWrappedException(h1, ex);
2787	>	rs[1].assertNotInvoked();
2788	>	}
2789	>	try {
2790	>	assertEquals(null, h2.join());
2791	>	rs[2].assertInvoked();
2792	>	} catch (CompletionException ok) {
2793	>	checkCompletedWithWrappedException(h2, ex);
2794	>	rs[2].assertNotInvoked();
2795	>	}
2796	>	try {
2797	>	assertEquals(null, h3.join());
2798	>	rs[3].assertInvoked();
2799	>	} catch (CompletionException ok) {
2800	>	checkCompletedWithWrappedException(h3, ex);
2801	>	rs[3].assertNotInvoked();
2802	>	}
2803
2804	<	f = new CompletableFuture<>();
2805	<	f2 = new CompletableFuture<>();
2806	<	assertTrue(f2.cancel(true));
2750	<	g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
2751	<	checkCompletedWithWrappedCancellationException(g);
2752	<	}
2804	>	checkCompletedNormally(f, v1);
2805	>	checkCompletedExceptionally(g, ex);
2806	>	}}
2807
2808		/**
2809	<	* acceptEitherAsync result completes normally after normal
2756	<	* completion of sources
2809	>	* runAfterEither result completes exceptionally if either source cancelled
2810		*/
2811	<	public void testAcceptEitherAsyncE() {
2812	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2813	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2814	<	IncAction r = new IncAction();
2815	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2816	<	f.complete(one);
2817	<	checkCompletedNormally(g, null);
2818	<	assertEquals(r.value, 2);
2819	<
2767	<	r = new IncAction();
2768	<	f = new CompletableFuture<>();
2769	<	f.complete(one);
2770	<	f2 = new CompletableFuture<>();
2771	<	g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2772	<	checkCompletedNormally(g, null);
2773	<	assertEquals(r.value, 2);
2774	<	}
2811	>	public void testRunAfterEither_sourceCancelled() {
2812	>	for (ExecutionMode m : ExecutionMode.values())
2813	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2814	>	for (Integer v1 : new Integer[] { 1, null })
2815	>	{
2816	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2817	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2818	>	final Noop[] rs = new Noop[6];
2819	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2820
2821	<	/**
2822	<	* acceptEitherAsync result completes exceptionally after exceptional
2823	<	* completion of source
2824	<	*/
2825	<	public void testAcceptEitherAsync2E() {
2826	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2827	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2828	<	IncAction r = new IncAction();
2829	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2830	<	f.completeExceptionally(new CFException());
2831	<	checkCompletedWithWrappedCFException(g);
2821	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2822	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2823	>	checkIncomplete(h0);
2824	>	checkIncomplete(h1);
2825	>	rs[0].assertNotInvoked();
2826	>	rs[1].assertNotInvoked();
2827	>	f.cancel(mayInterruptIfRunning);
2828	>	checkCompletedWithWrappedCancellationException(h0);
2829	>	checkCompletedWithWrappedCancellationException(h1);
2830	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2831	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2832	>	checkCompletedWithWrappedCancellationException(h2);
2833	>	checkCompletedWithWrappedCancellationException(h3);
2834	>
2835	>	assertTrue(g.complete(v1));
2836	>
2837	>	// unspecified behavior - both source completions available
2838	>	final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2839	>	final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2840	>	try {
2841	>	assertNull(h4.join());
2842	>	rs[4].assertInvoked();
2843	>	} catch (CompletionException ok) {
2844	>	checkCompletedWithWrappedCancellationException(h4);
2845	>	rs[4].assertNotInvoked();
2846	>	}
2847	>	try {
2848	>	assertNull(h5.join());
2849	>	rs[5].assertInvoked();
2850	>	} catch (CompletionException ok) {
2851	>	checkCompletedWithWrappedCancellationException(h5);
2852	>	rs[5].assertNotInvoked();
2853	>	}
2854
2855	<	r = new IncAction();
2856	<	f = new CompletableFuture<>();
2857	<	f2 = new CompletableFuture<>();
2858	<	f2.completeExceptionally(new CFException());
2859	<	g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2860	<	f.complete(one);
2861	<	checkCompletedWithWrappedCFException(g);
2862	<	}
2855	>	checkCancelled(f);
2856	>	checkCompletedNormally(g, v1);
2857	>	checkCompletedWithWrappedCancellationException(h0);
2858	>	checkCompletedWithWrappedCancellationException(h1);
2859	>	checkCompletedWithWrappedCancellationException(h2);
2860	>	checkCompletedWithWrappedCancellationException(h3);
2861	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2862	>	}}
2863
2864		/**
2865	<	* acceptEitherAsync result completes exceptionally if action does
2865	>	* runAfterEither result completes exceptionally if action does
2866		*/
2867	<	public void testAcceptEitherAsync3E() {
2868	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2869	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2870	<	FailingConsumer r = new FailingConsumer();
2871	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2872	<	f.complete(one);
2873	<	checkCompletedWithWrappedCFException(g);
2874	<	}
2867	>	public void testRunAfterEither_actionFailed() {
2868	>	for (ExecutionMode m : ExecutionMode.values())
2869	>	for (Integer v1 : new Integer[] { 1, null })
2870	>	for (Integer v2 : new Integer[] { 2, null })
2871	>	{
2872	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2873	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2874	>	final FailingRunnable[] rs = new FailingRunnable[6];
2875	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingRunnable(m);
2876
2877	<	/**
2878	<	* acceptEitherAsync result completes exceptionally if either
2879	<	* source cancelled
2880	<	*/
2881	<	public void testAcceptEitherAsync4E() {
2882	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2883	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2884	<	IncAction r = new IncAction();
2885	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2886	<	assertTrue(f.cancel(true));
2887	<	checkCompletedWithWrappedCancellationException(g);
2877	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2878	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2879	>	assertTrue(f.complete(v1));
2880	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2881	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2882	>	checkCompletedWithWrappedCFException(h0);
2883	>	checkCompletedWithWrappedCFException(h1);
2884	>	checkCompletedWithWrappedCFException(h2);
2885	>	checkCompletedWithWrappedCFException(h3);
2886	>	for (int i = 0; i < 4; i++) rs[i].assertInvoked();
2887	>	assertTrue(g.complete(v2));
2888	>	final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2889	>	final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2890	>	checkCompletedWithWrappedCFException(h4);
2891	>	checkCompletedWithWrappedCFException(h5);
2892
2893	<	r = new IncAction();
2894	<	f = new CompletableFuture<>();
2895	<	f2 = new CompletableFuture<>();
2896	<	assertTrue(f2.cancel(true));
2825	<	g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2826	<	checkCompletedWithWrappedCancellationException(g);
2827	<	}
2893	>	checkCompletedNormally(f, v1);
2894	>	checkCompletedNormally(g, v2);
2895	>	for (int i = 0; i < 6; i++) rs[i].assertInvoked();
2896	>	}}
2897
2898		/**
2899	<	* runAfterEitherAsync result completes normally after normal
2831	<	* completion of sources
2899	>	* thenCompose result completes normally after normal completion of source
2900		*/
2901	<	public void testRunAfterEitherAsyncE() {
2902	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2903	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2904	<	Noop r = new Noop();
2905	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2906	<	f.complete(one);
2907	<	checkCompletedNormally(g, null);
2908	<	assertTrue(r.ran);
2901	>	public void testThenCompose_normalCompletion() {
2902	>	for (ExecutionMode m : ExecutionMode.values())
2903	>	for (boolean createIncomplete : new boolean[] { true, false })
2904	>	for (Integer v1 : new Integer[] { 1, null })
2905	>	{
2906	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2907	>	final CompletableFutureInc r = new CompletableFutureInc(m);
2908	>	if (!createIncomplete) assertTrue(f.complete(v1));
2909	>	final CompletableFuture<Integer> g = m.thenCompose(f, r);
2910	>	if (createIncomplete) assertTrue(f.complete(v1));
2911
2912	<	r = new Noop();
2913	<	f = new CompletableFuture<>();
2914	<	f.complete(one);
2915	<	f2 = new CompletableFuture<>();
2846	<	g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2847	<	checkCompletedNormally(g, null);
2848	<	assertTrue(r.ran);
2849	<	}
2912	>	checkCompletedNormally(g, inc(v1));
2913	>	checkCompletedNormally(f, v1);
2914	>	r.assertValue(v1);
2915	>	}}
2916
2917		/**
2918	<	* runAfterEitherAsync result completes exceptionally after exceptional
2918	>	* thenCompose result completes exceptionally after exceptional
2919		* completion of source
2920		*/
2921	<	public void testRunAfterEitherAsync2E() {
2922	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2923	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2924	<	Noop r = new Noop();
2925	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2926	<	f.completeExceptionally(new CFException());
2927	<	checkCompletedWithWrappedCFException(g);
2928	<
2929	<	r = new Noop();
2930	<	f = new CompletableFuture<>();
2931	<	f2 = new CompletableFuture<>();
2932	<	f2.completeExceptionally(new CFException());
2933	<	g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2934	<	f.complete(one);
2935	<	checkCompletedWithWrappedCFException(g);
2870	<	}
2921	>	public void testThenCompose_exceptionalCompletion() {
2922	>	for (ExecutionMode m : ExecutionMode.values())
2923	>	for (boolean createIncomplete : new boolean[] { true, false })
2924	>	{
2925	>	final CFException ex = new CFException();
2926	>	final CompletableFutureInc r = new CompletableFutureInc(m);
2927	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2928	>	if (!createIncomplete) f.completeExceptionally(ex);
2929	>	final CompletableFuture<Integer> g = m.thenCompose(f, r);
2930	>	if (createIncomplete) f.completeExceptionally(ex);
2931	>
2932	>	checkCompletedWithWrappedException(g, ex);
2933	>	checkCompletedExceptionally(f, ex);
2934	>	r.assertNotInvoked();
2935	>	}}
2936
2937		/**
2938	<	* runAfterEitherAsync result completes exceptionally if action does
2938	>	* thenCompose result completes exceptionally if action does
2939		*/
2940	<	public void testRunAfterEitherAsync3E() {
2941	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2942	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2943	<	FailingNoop r = new FailingNoop();
2944	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2945	<	f.complete(one);
2940	>	public void testThenCompose_actionFailed() {
2941	>	for (ExecutionMode m : ExecutionMode.values())
2942	>	for (boolean createIncomplete : new boolean[] { true, false })
2943	>	for (Integer v1 : new Integer[] { 1, null })
2944	>	{
2945	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2946	>	final FailingCompletableFutureFunction r
2947	>	= new FailingCompletableFutureFunction(m);
2948	>	if (!createIncomplete) assertTrue(f.complete(v1));
2949	>	final CompletableFuture<Integer> g = m.thenCompose(f, r);
2950	>	if (createIncomplete) assertTrue(f.complete(v1));
2951	>
2952		checkCompletedWithWrappedCFException(g);
2953	<	}
2953	>	checkCompletedNormally(f, v1);
2954	>	}}
2955
2956		/**
2957	<	* runAfterEitherAsync result completes exceptionally if either
2886	<	* source cancelled
2957	>	* thenCompose result completes exceptionally if source cancelled
2958		*/
2959	<	public void testRunAfterEitherAsync4E() {
2960	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2961	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2962	<	Noop r = new Noop();
2963	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2964	<	assertTrue(f.cancel(true));
2965	<	checkCompletedWithWrappedCancellationException(g);
2959	>	public void testThenCompose_sourceCancelled() {
2960	>	for (ExecutionMode m : ExecutionMode.values())
2961	>	for (boolean createIncomplete : new boolean[] { true, false })
2962	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2963	>	{
2964	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2965	>	final CompletableFutureInc r = new CompletableFutureInc(m);
2966	>	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
2967	>	final CompletableFuture<Integer> g = m.thenCompose(f, r);
2968	>	if (createIncomplete) {
2969	>	checkIncomplete(g);
2970	>	assertTrue(f.cancel(mayInterruptIfRunning));
2971	>	}
2972
2896	–	r = new Noop();
2897	–	f = new CompletableFuture<>();
2898	–	f2 = new CompletableFuture<>();
2899	–	assertTrue(f2.cancel(true));
2900	–	g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2973		checkCompletedWithWrappedCancellationException(g);
2974	<	}
2975	<
2904	<	/**
2905	<	* thenComposeAsync result completes normally after normal
2906	<	* completion of source
2907	<	*/
2908	<	public void testThenComposeAsyncE() {
2909	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2910	<	CompletableFutureInc r = new CompletableFutureInc();
2911	<	CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
2912	<	f.complete(one);
2913	<	checkCompletedNormally(g, two);
2914	<	}
2915	<
2916	<	/**
2917	<	* thenComposeAsync result completes exceptionally after
2918	<	* exceptional completion of source
2919	<	*/
2920	<	public void testThenComposeAsync2E() {
2921	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2922	<	CompletableFutureInc r = new CompletableFutureInc();
2923	<	CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
2924	<	f.completeExceptionally(new CFException());
2925	<	checkCompletedWithWrappedCFException(g);
2926	<	}
2974	>	checkCancelled(f);
2975	>	}}
2976
2977		/**
2978	<	* thenComposeAsync result completes exceptionally if action does
2978	>	* thenCompose result completes exceptionally if the result of the action does
2979		*/
2980	<	public void testThenComposeAsync3E() {
2981	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2982	<	FailingCompletableFutureFunction r = new FailingCompletableFutureFunction();
2983	<	CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
2984	<	f.complete(one);
2985	<	checkCompletedWithWrappedCFException(g);
2986	<	}
2980	>	public void testThenCompose_actionReturnsFailingFuture() {
2981	>	for (ExecutionMode m : ExecutionMode.values())
2982	>	for (int order = 0; order < 6; order++)
2983	>	for (Integer v1 : new Integer[] { 1, null })
2984	>	{
2985	>	final CFException ex = new CFException();
2986	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2987	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2988	>	final CompletableFuture<Integer> h;
2989	>	// Test all permutations of orders
2990	>	switch (order) {
2991	>	case 0:
2992	>	assertTrue(f.complete(v1));
2993	>	assertTrue(g.completeExceptionally(ex));
2994	>	h = m.thenCompose(f, (x -> g));
2995	>	break;
2996	>	case 1:
2997	>	assertTrue(f.complete(v1));
2998	>	h = m.thenCompose(f, (x -> g));
2999	>	assertTrue(g.completeExceptionally(ex));
3000	>	break;
3001	>	case 2:
3002	>	assertTrue(g.completeExceptionally(ex));
3003	>	assertTrue(f.complete(v1));
3004	>	h = m.thenCompose(f, (x -> g));
3005	>	break;
3006	>	case 3:
3007	>	assertTrue(g.completeExceptionally(ex));
3008	>	h = m.thenCompose(f, (x -> g));
3009	>	assertTrue(f.complete(v1));
3010	>	break;
3011	>	case 4:
3012	>	h = m.thenCompose(f, (x -> g));
3013	>	assertTrue(f.complete(v1));
3014	>	assertTrue(g.completeExceptionally(ex));
3015	>	break;
3016	>	case 5:
3017	>	h = m.thenCompose(f, (x -> g));
3018	>	assertTrue(f.complete(v1));
3019	>	assertTrue(g.completeExceptionally(ex));
3020	>	break;
3021	>	default: throw new AssertionError();
3022	>	}
3023
3024	<	/**
3025	<	* thenComposeAsync result completes exceptionally if source cancelled
3026	<	*/
3027	<	public void testThenComposeAsync4E() {
2943	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2944	<	CompletableFutureInc r = new CompletableFutureInc();
2945	<	CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
2946	<	assertTrue(f.cancel(true));
2947	<	checkCompletedWithWrappedCancellationException(g);
2948	<	}
3024	>	checkCompletedExceptionally(g, ex);
3025	>	checkCompletedWithWrappedException(h, ex);
3026	>	checkCompletedNormally(f, v1);
3027	>	}}
3028
3029		// other static methods
3030
#	Line 2963 | Line 3042 | public class CompletableFutureTest exten
3042		* when all components complete normally
3043		*/
3044		public void testAllOf_normal() throws Exception {
3045	<	for (int k = 1; k < 20; ++k) {
3046	<	CompletableFuture<Integer>[] fs = (CompletableFuture<Integer>[]) new CompletableFuture[k];
3047	<	for (int i = 0; i < k; ++i)
3045	>	for (int k = 1; k < 10; k++) {
3046	>	CompletableFuture<Integer>[] fs
3047	>	= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3048	>	for (int i = 0; i < k; i++)
3049	>	fs[i] = new CompletableFuture<>();
3050	>	CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3051	>	for (int i = 0; i < k; i++) {
3052	>	checkIncomplete(f);
3053	>	checkIncomplete(CompletableFuture.allOf(fs));
3054	>	fs[i].complete(one);
3055	>	}
3056	>	checkCompletedNormally(f, null);
3057	>	checkCompletedNormally(CompletableFuture.allOf(fs), null);
3058	>	}
3059	>	}
3060	>
3061	>	public void testAllOf_backwards() throws Exception {
3062	>	for (int k = 1; k < 10; k++) {
3063	>	CompletableFuture<Integer>[] fs
3064	>	= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3065	>	for (int i = 0; i < k; i++)
3066		fs[i] = new CompletableFuture<>();
3067		CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3068	<	for (int i = 0; i < k; ++i) {
3068	>	for (int i = k - 1; i >= 0; i--) {
3069		checkIncomplete(f);
3070		checkIncomplete(CompletableFuture.allOf(fs));
3071		fs[i].complete(one);
#	Line 2978 | Line 3075 | public class CompletableFutureTest exten
3075		}
3076		}
3077
3078	+	public void testAllOf_exceptional() throws Exception {
3079	+	for (int k = 1; k < 10; k++) {
3080	+	CompletableFuture<Integer>[] fs
3081	+	= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3082	+	CFException ex = new CFException();
3083	+	for (int i = 0; i < k; i++)
3084	+	fs[i] = new CompletableFuture<>();
3085	+	CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3086	+	for (int i = 0; i < k; i++) {
3087	+	checkIncomplete(f);
3088	+	checkIncomplete(CompletableFuture.allOf(fs));
3089	+	if (i != k / 2) {
3090	+	fs[i].complete(i);
3091	+	checkCompletedNormally(fs[i], i);
3092	+	} else {
3093	+	fs[i].completeExceptionally(ex);
3094	+	checkCompletedExceptionally(fs[i], ex);
3095	+	}
3096	+	}
3097	+	checkCompletedWithWrappedException(f, ex);
3098	+	checkCompletedWithWrappedException(CompletableFuture.allOf(fs), ex);
3099	+	}
3100	+	}
3101	+
3102		/**
3103		* anyOf(no component futures) returns an incomplete future
3104		*/
3105		public void testAnyOf_empty() throws Exception {
3106	+	for (Integer v1 : new Integer[] { 1, null })
3107	+	{
3108		CompletableFuture<Object> f = CompletableFuture.anyOf();
3109		checkIncomplete(f);
3110	<	}
3110	>
3111	>	f.complete(v1);
3112	>	checkCompletedNormally(f, v1);
3113	>	}}
3114
3115		/**
3116		* anyOf returns a future completed normally with a value when
3117		* a component future does
3118		*/
3119		public void testAnyOf_normal() throws Exception {
3120	<	for (int k = 0; k < 10; ++k) {
3120	>	for (int k = 0; k < 10; k++) {
3121		CompletableFuture[] fs = new CompletableFuture[k];
3122	<	for (int i = 0; i < k; ++i)
3122	>	for (int i = 0; i < k; i++)
3123		fs[i] = new CompletableFuture<>();
3124		CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3125		checkIncomplete(f);
3126	<	for (int i = 0; i < k; ++i) {
3127	<	fs[i].complete(one);
3128	<	checkCompletedNormally(f, one);
3129	<	checkCompletedNormally(CompletableFuture.anyOf(fs), one);
3126	>	for (int i = 0; i < k; i++) {
3127	>	fs[i].complete(i);
3128	>	checkCompletedNormally(f, 0);
3129	>	int x = (int) CompletableFuture.anyOf(fs).join();
3130	>	assertTrue(0 <= x && x <= i);
3131	>	}
3132	>	}
3133	>	}
3134	>	public void testAnyOf_normal_backwards() throws Exception {
3135	>	for (int k = 0; k < 10; k++) {
3136	>	CompletableFuture[] fs = new CompletableFuture[k];
3137	>	for (int i = 0; i < k; i++)
3138	>	fs[i] = new CompletableFuture<>();
3139	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3140	>	checkIncomplete(f);
3141	>	for (int i = k - 1; i >= 0; i--) {
3142	>	fs[i].complete(i);
3143	>	checkCompletedNormally(f, k - 1);
3144	>	int x = (int) CompletableFuture.anyOf(fs).join();
3145	>	assertTrue(i <= x && x <= k - 1);
3146		}
3147		}
3148		}
#	Line 3009 | Line 3151 | public class CompletableFutureTest exten
3151		* anyOf result completes exceptionally when any component does.
3152		*/
3153		public void testAnyOf_exceptional() throws Exception {
3154	<	for (int k = 0; k < 10; ++k) {
3154	>	for (int k = 0; k < 10; k++) {
3155		CompletableFuture[] fs = new CompletableFuture[k];
3156	<	for (int i = 0; i < k; ++i)
3156	>	CFException[] exs = new CFException[k];
3157	>	for (int i = 0; i < k; i++) {
3158		fs[i] = new CompletableFuture<>();
3159	+	exs[i] = new CFException();
3160	+	}
3161	+	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3162	+	checkIncomplete(f);
3163	+	for (int i = 0; i < k; i++) {
3164	+	fs[i].completeExceptionally(exs[i]);
3165	+	checkCompletedWithWrappedException(f, exs[0]);
3166	+	checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3167	+	}
3168	+	}
3169	+	}
3170	+
3171	+	public void testAnyOf_exceptional_backwards() throws Exception {
3172	+	for (int k = 0; k < 10; k++) {
3173	+	CompletableFuture[] fs = new CompletableFuture[k];
3174	+	CFException[] exs = new CFException[k];
3175	+	for (int i = 0; i < k; i++) {
3176	+	fs[i] = new CompletableFuture<>();
3177	+	exs[i] = new CFException();
3178	+	}
3179		CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3180		checkIncomplete(f);
3181	<	for (int i = 0; i < k; ++i) {
3182	<	fs[i].completeExceptionally(new CFException());
3183	<	checkCompletedWithWrappedCFException(f);
3181	>	for (int i = k - 1; i >= 0; i--) {
3182	>	fs[i].completeExceptionally(exs[i]);
3183	>	checkCompletedWithWrappedException(f, exs[k - 1]);
3184		checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3185		}
3186		}
#	Line 3030 | Line 3193 | public class CompletableFutureTest exten
3193		CompletableFuture<Integer> f = new CompletableFuture<>();
3194		CompletableFuture<Integer> g = new CompletableFuture<>();
3195		CompletableFuture<Integer> nullFuture = (CompletableFuture<Integer>)null;
3033	–	CompletableFuture<?> h;
3196		ThreadExecutor exec = new ThreadExecutor();
3197
3198		Runnable[] throwingActions = {
3199		() -> CompletableFuture.supplyAsync(null),
3200		() -> CompletableFuture.supplyAsync(null, exec),
3201	<	() -> CompletableFuture.supplyAsync(supplyOne, null),
3201	>	() -> CompletableFuture.supplyAsync(new IntegerSupplier(ExecutionMode.SYNC, 42), null),
3202
3203		() -> CompletableFuture.runAsync(null),
3204		() -> CompletableFuture.runAsync(null, exec),
#	Line 3109 | Line 3271 | public class CompletableFutureTest exten
3271
3272		() -> f.thenCompose(null),
3273		() -> f.thenComposeAsync(null),
3274	<	() -> f.thenComposeAsync(new CompletableFutureInc(), null),
3274	>	() -> f.thenComposeAsync(new CompletableFutureInc(ExecutionMode.EXECUTOR), null),
3275		() -> f.thenComposeAsync(null, exec),
3276
3277		() -> f.exceptionally(null),
#	Line 3127 | Line 3289 | public class CompletableFutureTest exten
3289		() -> CompletableFuture.anyOf(null, f),
3290
3291		() -> f.obtrudeException(null),
3292	+
3293	+	() -> CompletableFuture.delayedExecutor(1L, SECONDS, null),
3294	+	() -> CompletableFuture.delayedExecutor(1L, null, new ThreadExecutor()),
3295	+	() -> CompletableFuture.delayedExecutor(1L, null),
3296	+
3297	+	() -> f.orTimeout(1L, null),
3298	+	() -> f.completeOnTimeout(42, 1L, null),
3299	+
3300	+	() -> CompletableFuture.failedFuture(null),
3301	+	() -> CompletableFuture.failedStage(null),
3302		};
3303
3304		assertThrows(NullPointerException.class, throwingActions);
#	Line 3141 | Line 3313 | public class CompletableFutureTest exten
3313		assertSame(f, f.toCompletableFuture());
3314		}
3315
3316	+	// jdk9
3317	+
3318		/**
3319	<	* whenComplete action executes on normal completion, propagating
3146	<	* source result.
3319	>	* newIncompleteFuture returns an incomplete CompletableFuture
3320		*/
3321	<	public void testWhenComplete1() {
3322	<	final AtomicInteger a = new AtomicInteger();
3321	>	public void testNewIncompleteFuture() {
3322	>	for (Integer v1 : new Integer[] { 1, null })
3323	>	{
3324		CompletableFuture<Integer> f = new CompletableFuture<>();
3325	<	CompletableFuture<Integer> g =
3326	<	f.whenComplete((Integer x, Throwable t) -> a.getAndIncrement());
3327	<	f.complete(three);
3328	<	checkCompletedNormally(f, three);
3329	<	checkCompletedNormally(g, three);
3330	<	assertEquals(a.get(), 1);
3325	>	CompletableFuture<Integer> g = f.newIncompleteFuture();
3326	>	checkIncomplete(f);
3327	>	checkIncomplete(g);
3328	>	f.complete(v1);
3329	>	checkCompletedNormally(f, v1);
3330	>	checkIncomplete(g);
3331	>	g.complete(v1);
3332	>	checkCompletedNormally(g, v1);
3333	>	assertSame(g.getClass(), CompletableFuture.class);
3334	>	}}
3335	>
3336	>	/**
3337	>	* completedStage returns a completed CompletionStage
3338	>	*/
3339	>	public void testCompletedStage() {
3340	>	AtomicInteger x = new AtomicInteger(0);
3341	>	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3342	>	CompletionStage<Integer> f = CompletableFuture.completedStage(1);
3343	>	f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3344	>	assertEquals(x.get(), 1);
3345	>	assertNull(r.get());
3346		}
3347
3348		/**
3349	<	* whenComplete action executes on exceptional completion, propagating
3350	<	* source result.
3349	>	* defaultExecutor by default returns the commonPool if
3350	>	* it supports more than one thread.
3351		*/
3352	<	public void testWhenComplete2() {
3164	<	final AtomicInteger a = new AtomicInteger();
3352	>	public void testDefaultExecutor() {
3353		CompletableFuture<Integer> f = new CompletableFuture<>();
3354	<	CompletableFuture<Integer> g =
3355	<	f.whenComplete((Integer x, Throwable t) -> a.getAndIncrement());
3356	<	f.completeExceptionally(new CFException());
3357	<	assertTrue(f.isCompletedExceptionally());
3358	<	assertTrue(g.isCompletedExceptionally());
3359	<	assertEquals(a.get(), 1);
3354	>	Executor e = f.defaultExecutor();
3355	>	Executor c = ForkJoinPool.commonPool();
3356	>	if (ForkJoinPool.getCommonPoolParallelism() > 1)
3357	>	assertSame(e, c);
3358	>	else
3359	>	assertNotSame(e, c);
3360		}
3361
3362		/**
3363	<	* If a whenComplete action throws an exception when triggered by
3364	<	* a normal completion, it completes exceptionally
3363	>	* failedFuture returns a CompletableFuture completed
3364	>	* exceptionally with the given Exception
3365		*/
3366	<	public void testWhenComplete3() {
3367	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3368	<	CompletableFuture<Integer> g =
3369	<	f.whenComplete((Integer x, Throwable t) ->
3182	<	{ throw new CFException(); } );
3183	<	f.complete(three);
3184	<	checkCompletedNormally(f, three);
3185	<	assertTrue(g.isCompletedExceptionally());
3186	<	checkCompletedWithWrappedCFException(g);
3366	>	public void testFailedFuture() {
3367	>	CFException ex = new CFException();
3368	>	CompletableFuture<Integer> f = CompletableFuture.failedFuture(ex);
3369	>	checkCompletedExceptionally(f, ex);
3370		}
3371
3372		/**
3373	<	* whenCompleteAsync action executes on normal completion, propagating
3191	<	* source result.
3373	>	* failedFuture(null) throws NPE
3374		*/
3375	<	public void testWhenCompleteAsync1() {
3376	<	final AtomicInteger a = new AtomicInteger();
3377	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3378	<	CompletableFuture<Integer> g =
3379	<	f.whenCompleteAsync((Integer x, Throwable t) -> a.getAndIncrement());
3198	<	f.complete(three);
3199	<	checkCompletedNormally(f, three);
3200	<	checkCompletedNormally(g, three);
3201	<	assertEquals(a.get(), 1);
3375	>	public void testFailedFuture_null() {
3376	>	try {
3377	>	CompletableFuture<Integer> f = CompletableFuture.failedFuture(null);
3378	>	shouldThrow();
3379	>	} catch (NullPointerException success) {}
3380		}
3381
3382		/**
3383	<	* whenCompleteAsync action executes on exceptional completion, propagating
3384	<	* source result.
3383	>	* copy returns a CompletableFuture that is completed normally,
3384	>	* with the same value, when source is.
3385		*/
3386	<	public void testWhenCompleteAsync2() {
3209	<	final AtomicInteger a = new AtomicInteger();
3386	>	public void testCopy() {
3387		CompletableFuture<Integer> f = new CompletableFuture<>();
3388	<	CompletableFuture<Integer> g =
3389	<	f.whenCompleteAsync((Integer x, Throwable t) -> a.getAndIncrement());
3390	<	f.completeExceptionally(new CFException());
3391	<	checkCompletedWithWrappedCFException(f);
3392	<	checkCompletedWithWrappedCFException(g);
3388	>	CompletableFuture<Integer> g = f.copy();
3389	>	checkIncomplete(f);
3390	>	checkIncomplete(g);
3391	>	f.complete(1);
3392	>	checkCompletedNormally(f, 1);
3393	>	checkCompletedNormally(g, 1);
3394		}
3395
3396		/**
3397	<	* If a whenCompleteAsync action throws an exception when
3398	<	* triggered by a normal completion, it completes exceptionally
3397	>	* copy returns a CompletableFuture that is completed exceptionally
3398	>	* when source is.
3399		*/
3400	<	public void testWhenCompleteAsync3() {
3400	>	public void testCopy2() {
3401		CompletableFuture<Integer> f = new CompletableFuture<>();
3402	<	CompletableFuture<Integer> g =
3403	<	f.whenCompleteAsync((Integer x, Throwable t) ->
3404	<	{ throw new CFException(); } );
3405	<	f.complete(three);
3406	<	checkCompletedNormally(f, three);
3407	<	checkCompletedWithWrappedCFException(g);
3402	>	CompletableFuture<Integer> g = f.copy();
3403	>	checkIncomplete(f);
3404	>	checkIncomplete(g);
3405	>	CFException ex = new CFException();
3406	>	f.completeExceptionally(ex);
3407	>	checkCompletedExceptionally(f, ex);
3408	>	checkCompletedWithWrappedException(g, ex);
3409		}
3410
3411		/**
3412	<	* whenCompleteAsync action executes on normal completion, propagating
3413	<	* source result.
3412	>	* minimalCompletionStage returns a CompletableFuture that is
3413	>	* completed normally, with the same value, when source is.
3414		*/
3415	<	public void testWhenCompleteAsync1e() {
3237	<	final AtomicInteger a = new AtomicInteger();
3238	<	ThreadExecutor exec = new ThreadExecutor();
3415	>	public void testMinimalCompletionStage() {
3416		CompletableFuture<Integer> f = new CompletableFuture<>();
3417	<	CompletableFuture<Integer> g =
3418	<	f.whenCompleteAsync((Integer x, Throwable t) -> a.getAndIncrement(),
3419	<	exec);
3420	<	f.complete(three);
3421	<	checkCompletedNormally(f, three);
3422	<	checkCompletedNormally(g, three);
3423	<	assertEquals(a.get(), 1);
3417	>	CompletionStage<Integer> g = f.minimalCompletionStage();
3418	>	AtomicInteger x = new AtomicInteger(0);
3419	>	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3420	>	checkIncomplete(f);
3421	>	g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3422	>	f.complete(1);
3423	>	checkCompletedNormally(f, 1);
3424	>	assertEquals(x.get(), 1);
3425	>	assertNull(r.get());
3426		}
3427
3428		/**
3429	<	* whenCompleteAsync action executes on exceptional completion, propagating
3430	<	* source result.
3429	>	* minimalCompletionStage returns a CompletableFuture that is
3430	>	* completed exceptionally when source is.
3431		*/
3432	<	public void testWhenCompleteAsync2e() {
3254	<	final AtomicInteger a = new AtomicInteger();
3255	<	ThreadExecutor exec = new ThreadExecutor();
3432	>	public void testMinimalCompletionStage2() {
3433		CompletableFuture<Integer> f = new CompletableFuture<>();
3434	<	CompletableFuture<Integer> g =
3435	<	f.whenCompleteAsync((Integer x, Throwable t) -> a.getAndIncrement(),
3436	<	exec);
3437	<	f.completeExceptionally(new CFException());
3438	<	checkCompletedWithWrappedCFException(f);
3439	<	checkCompletedWithWrappedCFException(g);
3434	>	CompletionStage<Integer> g = f.minimalCompletionStage();
3435	>	AtomicInteger x = new AtomicInteger(0);
3436	>	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3437	>	g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3438	>	checkIncomplete(f);
3439	>	CFException ex = new CFException();
3440	>	f.completeExceptionally(ex);
3441	>	checkCompletedExceptionally(f, ex);
3442	>	assertEquals(x.get(), 0);
3443	>	assertEquals(r.get().getCause(), ex);
3444		}
3445
3446		/**
3447	<	* If a whenCompleteAsync action throws an exception when triggered
3448	<	* by a normal completion, it completes exceptionally
3447	>	* failedStage returns a CompletionStage completed
3448	>	* exceptionally with the given Exception
3449		*/
3450	<	public void testWhenCompleteAsync3e() {
3451	<	ThreadExecutor exec = new ThreadExecutor();
3450	>	public void testFailedStage() {
3451	>	CFException ex = new CFException();
3452	>	CompletionStage<Integer> f = CompletableFuture.failedStage(ex);
3453	>	AtomicInteger x = new AtomicInteger(0);
3454	>	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3455	>	f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3456	>	assertEquals(x.get(), 0);
3457	>	assertEquals(r.get(), ex);
3458	>	}
3459	>
3460	>	/**
3461	>	* completeAsync completes with value of given supplier
3462	>	*/
3463	>	public void testCompleteAsync() {
3464	>	for (Integer v1 : new Integer[] { 1, null })
3465	>	{
3466		CompletableFuture<Integer> f = new CompletableFuture<>();
3467	<	CompletableFuture<Integer> g =
3468	<	f.whenCompleteAsync((Integer x, Throwable t) ->
3469	<	{ throw new CFException(); },
3470	<	exec);
3471	<	f.complete(three);
3472	<	checkCompletedNormally(f, three);
3473	<	checkCompletedWithWrappedCFException(g);
3467	>	f.completeAsync(() -> v1);
3468	>	f.join();
3469	>	checkCompletedNormally(f, v1);
3470	>	}}
3471	>
3472	>	/**
3473	>	* completeAsync completes exceptionally if given supplier throws
3474	>	*/
3475	>	public void testCompleteAsync2() {
3476	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3477	>	CFException ex = new CFException();
3478	>	f.completeAsync(() -> {if (true) throw ex; return 1;});
3479	>	try {
3480	>	f.join();
3481	>	shouldThrow();
3482	>	} catch (CompletionException success) {}
3483	>	checkCompletedWithWrappedException(f, ex);
3484		}
3485
3486		/**
3487	<	* handleAsync action completes normally with function value on
3283	<	* either normal or exceptional completion of source
3487	>	* completeAsync with given executor completes with value of given supplier
3488		*/
3489	<	public void testHandleAsync() {
3490	<	CompletableFuture<Integer> f, g;
3491	<	IntegerHandler r;
3489	>	public void testCompleteAsync3() {
3490	>	for (Integer v1 : new Integer[] { 1, null })
3491	>	{
3492	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3493	>	ThreadExecutor executor = new ThreadExecutor();
3494	>	f.completeAsync(() -> v1, executor);
3495	>	assertSame(v1, f.join());
3496	>	checkCompletedNormally(f, v1);
3497	>	assertEquals(1, executor.count.get());
3498	>	}}
3499
3500	<	f = new CompletableFuture<>();
3501	<	g = f.handleAsync(r = new IntegerHandler());
3502	<	assertFalse(r.ran);
3503	<	f.completeExceptionally(new CFException());
3504	<	checkCompletedWithWrappedCFException(f);
3505	<	checkCompletedNormally(g, three);
3506	<	assertTrue(r.ran);
3500	>	/**
3501	>	* completeAsync with given executor completes exceptionally if
3502	>	* given supplier throws
3503	>	*/
3504	>	public void testCompleteAsync4() {
3505	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3506	>	CFException ex = new CFException();
3507	>	ThreadExecutor executor = new ThreadExecutor();
3508	>	f.completeAsync(() -> {if (true) throw ex; return 1;}, executor);
3509	>	try {
3510	>	f.join();
3511	>	shouldThrow();
3512	>	} catch (CompletionException success) {}
3513	>	checkCompletedWithWrappedException(f, ex);
3514	>	assertEquals(1, executor.count.get());
3515	>	}
3516
3517	<	f = new CompletableFuture<>();
3518	<	g = f.handleAsync(r = new IntegerHandler());
3519	<	assertFalse(r.ran);
3520	<	f.completeExceptionally(new CFException());
3521	<	checkCompletedWithWrappedCFException(f);
3522	<	checkCompletedNormally(g, three);
3523	<	assertTrue(r.ran);
3517	>	/**
3518	>	* orTimeout completes with TimeoutException if not complete
3519	>	*/
3520	>	public void testOrTimeout_timesOut() {
3521	>	long timeoutMillis = timeoutMillis();
3522	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3523	>	long startTime = System.nanoTime();
3524	>	f.orTimeout(timeoutMillis, MILLISECONDS);
3525	>	checkCompletedWithTimeoutException(f);
3526	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3527	>	}
3528
3529	<	f = new CompletableFuture<>();
3530	<	g = f.handleAsync(r = new IntegerHandler());
3531	<	assertFalse(r.ran);
3532	<	f.complete(one);
3533	<	checkCompletedNormally(f, one);
3534	<	checkCompletedNormally(g, two);
3535	<	assertTrue(r.ran);
3529	>	/**
3530	>	* orTimeout completes normally if completed before timeout
3531	>	*/
3532	>	public void testOrTimeout_completed() {
3533	>	for (Integer v1 : new Integer[] { 1, null })
3534	>	{
3535	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3536	>	CompletableFuture<Integer> g = new CompletableFuture<>();
3537	>	long startTime = System.nanoTime();
3538	>	f.complete(v1);
3539	>	f.orTimeout(LONG_DELAY_MS, MILLISECONDS);
3540	>	g.orTimeout(LONG_DELAY_MS, MILLISECONDS);
3541	>	g.complete(v1);
3542	>	checkCompletedNormally(f, v1);
3543	>	checkCompletedNormally(g, v1);
3544	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3545	>	}}
3546
3547	<	f = new CompletableFuture<>();
3548	<	g = f.handleAsync(r = new IntegerHandler());
3549	<	assertFalse(r.ran);
3550	<	f.complete(one);
3551	<	checkCompletedNormally(f, one);
3552	<	checkCompletedNormally(g, two);
3553	<	assertTrue(r.ran);
3547	>	/**
3548	>	* completeOnTimeout completes with given value if not complete
3549	>	*/
3550	>	public void testCompleteOnTimeout_timesOut() {
3551	>	testInParallel(() -> testCompleteOnTimeout_timesOut(42),
3552	>	() -> testCompleteOnTimeout_timesOut(null));
3553	>	}
3554	>
3555	>	public void testCompleteOnTimeout_timesOut(Integer v) {
3556	>	long timeoutMillis = timeoutMillis();
3557	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3558	>	long startTime = System.nanoTime();
3559	>	f.completeOnTimeout(v, timeoutMillis, MILLISECONDS);
3560	>	assertSame(v, f.join());
3561	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3562	>	f.complete(99);         // should have no effect
3563	>	checkCompletedNormally(f, v);
3564		}
3565
3566		/**
3567	<	* handleAsync action with Executor completes normally with
3324	<	* function value on either normal or exceptional completion of
3325	<	* source
3567	>	* completeOnTimeout has no effect if completed within timeout
3568		*/
3569	<	public void testHandleAsync2() {
3570	<	CompletableFuture<Integer> f, g;
3571	<	ThreadExecutor exec = new ThreadExecutor();
3572	<	IntegerHandler r;
3569	>	public void testCompleteOnTimeout_completed() {
3570	>	for (Integer v1 : new Integer[] { 1, null })
3571	>	{
3572	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3573	>	CompletableFuture<Integer> g = new CompletableFuture<>();
3574	>	long startTime = System.nanoTime();
3575	>	f.complete(v1);
3576	>	f.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS);
3577	>	g.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS);
3578	>	g.complete(v1);
3579	>	checkCompletedNormally(f, v1);
3580	>	checkCompletedNormally(g, v1);
3581	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3582	>	}}
3583
3584	<	f = new CompletableFuture<>();
3585	<	g = f.handleAsync(r = new IntegerHandler(), exec);
3586	<	assertFalse(r.ran);
3587	<	f.completeExceptionally(new CFException());
3588	<	checkCompletedWithWrappedCFException(f);
3589	<	checkCompletedNormally(g, three);
3590	<	assertTrue(r.ran);
3584	>	/**
3585	>	* delayedExecutor returns an executor that delays submission
3586	>	*/
3587	>	public void testDelayedExecutor() {
3588	>	testInParallel(() -> testDelayedExecutor(null, null),
3589	>	() -> testDelayedExecutor(null, 1),
3590	>	() -> testDelayedExecutor(new ThreadExecutor(), 1),
3591	>	() -> testDelayedExecutor(new ThreadExecutor(), 1));
3592	>	}
3593	>
3594	>	public void testDelayedExecutor(Executor executor, Integer v) throws Exception {
3595	>	long timeoutMillis = timeoutMillis();
3596	>	// Use an "unreasonably long" long timeout to catch lingering threads
3597	>	long longTimeoutMillis = 1000 * 60 * 60 * 24;
3598	>	final Executor delayer, longDelayer;
3599	>	if (executor == null) {
3600	>	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS);
3601	>	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS);
3602	>	} else {
3603	>	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS, executor);
3604	>	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS, executor);
3605	>	}
3606	>	long startTime = System.nanoTime();
3607	>	CompletableFuture<Integer> f =
3608	>	CompletableFuture.supplyAsync(() -> v, delayer);
3609	>	CompletableFuture<Integer> g =
3610	>	CompletableFuture.supplyAsync(() -> v, longDelayer);
3611
3612	<	f = new CompletableFuture<>();
3341	<	g = f.handleAsync(r = new IntegerHandler(), exec);
3342	<	assertFalse(r.ran);
3343	<	f.completeExceptionally(new CFException());
3344	<	checkCompletedWithWrappedCFException(f);
3345	<	checkCompletedNormally(g, three);
3346	<	assertTrue(r.ran);
3612	>	assertNull(g.getNow(null));
3613
3614	<	f = new CompletableFuture<>();
3615	<	g = f.handleAsync(r = new IntegerHandler(), exec);
3616	<	assertFalse(r.ran);
3617	<	f.complete(one);
3352	<	checkCompletedNormally(f, one);
3353	<	checkCompletedNormally(g, two);
3354	<	assertTrue(r.ran);
3614	>	assertSame(v, f.get(LONG_DELAY_MS, MILLISECONDS));
3615	>	long millisElapsed = millisElapsedSince(startTime);
3616	>	assertTrue(millisElapsed >= timeoutMillis);
3617	>	assertTrue(millisElapsed < LONG_DELAY_MS / 2);
3618
3619	<	f = new CompletableFuture<>();
3620	<	g = f.handleAsync(r = new IntegerHandler(), exec);
3621	<	assertFalse(r.ran);
3622	<	f.complete(one);
3623	<	checkCompletedNormally(f, one);
3624	<	checkCompletedNormally(g, two);
3625	<	assertTrue(r.ran);
3619	>	checkCompletedNormally(f, v);
3620	>
3621	>	checkIncomplete(g);
3622	>	assertTrue(g.cancel(true));
3623	>	}
3624	>
3625	>	//--- tests of implementation details; not part of official tck ---
3626	>
3627	>	Object resultOf(CompletableFuture<?> f) {
3628	>	try {
3629	>	java.lang.reflect.Field resultField
3630	>	= CompletableFuture.class.getDeclaredField("result");
3631	>	resultField.setAccessible(true);
3632	>	return resultField.get(f);
3633	>	} catch (Throwable t) { throw new AssertionError(t); }
3634	>	}
3635	>
3636	>	public void testExceptionPropagationReusesResultObject() {
3637	>	if (!testImplementationDetails) return;
3638	>	for (ExecutionMode m : ExecutionMode.values())
3639	>	{
3640	>	final CFException ex = new CFException();
3641	>	final CompletableFuture<Integer> v42 = CompletableFuture.completedFuture(42);
3642	>	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3643	>
3644	>	List<Function<CompletableFuture<Integer>, CompletableFuture<?>>> funs
3645	>	= new ArrayList<>();
3646	>
3647	>	funs.add((y) -> m.thenRun(y, new Noop(m)));
3648	>	funs.add((y) -> m.thenAccept(y, new NoopConsumer(m)));
3649	>	funs.add((y) -> m.thenApply(y, new IncFunction(m)));
3650	>
3651	>	funs.add((y) -> m.runAfterEither(y, incomplete, new Noop(m)));
3652	>	funs.add((y) -> m.acceptEither(y, incomplete, new NoopConsumer(m)));
3653	>	funs.add((y) -> m.applyToEither(y, incomplete, new IncFunction(m)));
3654	>
3655	>	funs.add((y) -> m.runAfterBoth(y, v42, new Noop(m)));
3656	>	funs.add((y) -> m.thenAcceptBoth(y, v42, new SubtractAction(m)));
3657	>	funs.add((y) -> m.thenCombine(y, v42, new SubtractFunction(m)));
3658	>
3659	>	funs.add((y) -> m.whenComplete(y, (Integer r, Throwable t) -> {}));
3660	>
3661	>	funs.add((y) -> m.thenCompose(y, new CompletableFutureInc(m)));
3662	>
3663	>	funs.add((y) -> CompletableFuture.allOf(new CompletableFuture<?>[] {y, v42}));
3664	>	funs.add((y) -> CompletableFuture.anyOf(new CompletableFuture<?>[] {y, incomplete}));
3665	>
3666	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3667	>	fun : funs) {
3668	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3669	>	f.completeExceptionally(ex);
3670	>	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
3671	>	checkCompletedWithWrappedException(src, ex);
3672	>	CompletableFuture<?> dep = fun.apply(src);
3673	>	checkCompletedWithWrappedException(dep, ex);
3674	>	assertSame(resultOf(src), resultOf(dep));
3675	>	}
3676	>
3677	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3678	>	fun : funs) {
3679	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3680	>	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
3681	>	CompletableFuture<?> dep = fun.apply(src);
3682	>	f.completeExceptionally(ex);
3683	>	checkCompletedWithWrappedException(src, ex);
3684	>	checkCompletedWithWrappedException(dep, ex);
3685	>	assertSame(resultOf(src), resultOf(dep));
3686	>	}
3687	>
3688	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3689	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3690	>	fun : funs) {
3691	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3692	>	f.cancel(mayInterruptIfRunning);
3693	>	checkCancelled(f);
3694	>	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
3695	>	checkCompletedWithWrappedCancellationException(src);
3696	>	CompletableFuture<?> dep = fun.apply(src);
3697	>	checkCompletedWithWrappedCancellationException(dep);
3698	>	assertSame(resultOf(src), resultOf(dep));
3699	>	}
3700	>
3701	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3702	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3703	>	fun : funs) {
3704	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3705	>	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
3706	>	CompletableFuture<?> dep = fun.apply(src);
3707	>	f.cancel(mayInterruptIfRunning);
3708	>	checkCancelled(f);
3709	>	checkCompletedWithWrappedCancellationException(src);
3710	>	checkCompletedWithWrappedCancellationException(dep);
3711	>	assertSame(resultOf(src), resultOf(dep));
3712	>	}
3713	>	}}
3714	>
3715	>	/**
3716	>	* Minimal completion stages throw UOE for all non-CompletionStage methods
3717	>	*/
3718	>	public void testMinimalCompletionStage_minimality() {
3719	>	if (!testImplementationDetails) return;
3720	>	Function<Method, String> toSignature =
3721	>	(method) -> method.getName() + Arrays.toString(method.getParameterTypes());
3722	>	Predicate<Method> isNotStatic =
3723	>	(method) -> (method.getModifiers() & Modifier.STATIC) == 0;
3724	>	List<Method> minimalMethods =
3725	>	Stream.of(Object.class, CompletionStage.class)
3726	>	.flatMap((klazz) -> Stream.of(klazz.getMethods()))
3727	>	.filter(isNotStatic)
3728	>	.collect(Collectors.toList());
3729	>	// Methods from CompletableFuture permitted NOT to throw UOE
3730	>	String[] signatureWhitelist = {
3731	>	"newIncompleteFuture[]",
3732	>	"defaultExecutor[]",
3733	>	"minimalCompletionStage[]",
3734	>	"copy[]",
3735	>	};
3736	>	Set<String> permittedMethodSignatures =
3737	>	Stream.concat(minimalMethods.stream().map(toSignature),
3738	>	Stream.of(signatureWhitelist))
3739	>	.collect(Collectors.toSet());
3740	>	List<Method> allMethods = Stream.of(CompletableFuture.class.getMethods())
3741	>	.filter(isNotStatic)
3742	>	.filter((method) -> !permittedMethodSignatures.contains(toSignature.apply(method)))
3743	>	.collect(Collectors.toList());
3744	>
3745	>	CompletionStage<Integer> minimalStage =
3746	>	new CompletableFuture<Integer>().minimalCompletionStage();
3747	>
3748	>	List<Method> bugs = new ArrayList<>();
3749	>	for (Method method : allMethods) {
3750	>	Class<?>[] parameterTypes = method.getParameterTypes();
3751	>	Object[] args = new Object[parameterTypes.length];
3752	>	// Manufacture boxed primitives for primitive params
3753	>	for (int i = 0; i < args.length; i++) {
3754	>	Class<?> type = parameterTypes[i];
3755	>	if (parameterTypes[i] == boolean.class)
3756	>	args[i] = false;
3757	>	else if (parameterTypes[i] == int.class)
3758	>	args[i] = 0;
3759	>	else if (parameterTypes[i] == long.class)
3760	>	args[i] = 0L;
3761	>	}
3762	>	try {
3763	>	method.invoke(minimalStage, args);
3764	>	bugs.add(method);
3765	>	}
3766	>	catch (java.lang.reflect.InvocationTargetException expected) {
3767	>	if (! (expected.getCause() instanceof UnsupportedOperationException)) {
3768	>	bugs.add(method);
3769	>	// expected.getCause().printStackTrace();
3770	>	}
3771	>	}
3772	>	catch (ReflectiveOperationException bad) { throw new Error(bad); }
3773	>	}
3774	>	if (!bugs.isEmpty())
3775	>	throw new Error("Methods did not throw UOE: " + bugs.toString());
3776		}
3777
3778	+	static class Monad {
3779	+	static class ZeroException extends RuntimeException {
3780	+	public ZeroException() { super("monadic zero"); }
3781	+	}
3782	+	// "return", "unit"
3783	+	static <T> CompletableFuture<T> unit(T value) {
3784	+	return completedFuture(value);
3785	+	}
3786	+	// monadic zero ?
3787	+	static <T> CompletableFuture<T> zero() {
3788	+	return failedFuture(new ZeroException());
3789	+	}
3790	+	// >=>
3791	+	static <T,U,V> Function<T, CompletableFuture<V>> compose
3792	+	(Function<T, CompletableFuture<U>> f,
3793	+	Function<U, CompletableFuture<V>> g) {
3794	+	return (x) -> f.apply(x).thenCompose(g);
3795	+	}
3796	+
3797	+	static void assertZero(CompletableFuture<?> f) {
3798	+	try {
3799	+	f.getNow(null);
3800	+	throw new AssertionFailedError("should throw");
3801	+	} catch (CompletionException success) {
3802	+	assertTrue(success.getCause() instanceof ZeroException);
3803	+	}
3804	+	}
3805	+
3806	+	static <T> void assertFutureEquals(CompletableFuture<T> f,
3807	+	CompletableFuture<T> g) {
3808	+	T fval = null, gval = null;
3809	+	Throwable fex = null, gex = null;
3810	+
3811	+	try { fval = f.get(); }
3812	+	catch (ExecutionException ex) { fex = ex.getCause(); }
3813	+	catch (Throwable ex) { fex = ex; }
3814	+
3815	+	try { gval = g.get(); }
3816	+	catch (ExecutionException ex) { gex = ex.getCause(); }
3817	+	catch (Throwable ex) { gex = ex; }
3818	+
3819	+	if (fex != null || gex != null)
3820	+	assertSame(fex.getClass(), gex.getClass());
3821	+	else
3822	+	assertEquals(fval, gval);
3823	+	}
3824	+
3825	+	static class PlusFuture<T> extends CompletableFuture<T> {
3826	+	AtomicReference<Throwable> firstFailure = new AtomicReference<>(null);
3827	+	}
3828	+
3829	+	/** Implements "monadic plus". */
3830	+	static <T> CompletableFuture<T> plus(CompletableFuture<? extends T> f,
3831	+	CompletableFuture<? extends T> g) {
3832	+	PlusFuture<T> plus = new PlusFuture<T>();
3833	+	BiConsumer<T, Throwable> action = (T result, Throwable ex) -> {
3834	+	try {
3835	+	if (ex == null) {
3836	+	if (plus.complete(result))
3837	+	if (plus.firstFailure.get() != null)
3838	+	plus.firstFailure.set(null);
3839	+	}
3840	+	else if (plus.firstFailure.compareAndSet(null, ex)) {
3841	+	if (plus.isDone())
3842	+	plus.firstFailure.set(null);
3843	+	}
3844	+	else {
3845	+	// first failure has precedence
3846	+	Throwable first = plus.firstFailure.getAndSet(null);
3847	+
3848	+	// may fail with "Self-suppression not permitted"
3849	+	try { first.addSuppressed(ex); }
3850	+	catch (Exception ignored) {}
3851	+
3852	+	plus.completeExceptionally(first);
3853	+	}
3854	+	} catch (Throwable unexpected) {
3855	+	plus.completeExceptionally(unexpected);
3856	+	}
3857	+	};
3858	+	f.whenComplete(action);
3859	+	g.whenComplete(action);
3860	+	return plus;
3861	+	}
3862	+	}
3863	+
3864	+	/**
3865	+	* CompletableFuture is an additive monad - sort of.
3866	+	* https://en.wikipedia.org/wiki/Monad_(functional_programming)#Additive_monads
3867	+	*/
3868	+	public void testAdditiveMonad() throws Throwable {
3869	+	Function<Long, CompletableFuture<Long>> unit = Monad::unit;
3870	+	CompletableFuture<Long> zero = Monad.zero();
3871	+
3872	+	// Some mutually non-commutative functions
3873	+	Function<Long, CompletableFuture<Long>> triple
3874	+	= (x) -> Monad.unit(3 * x);
3875	+	Function<Long, CompletableFuture<Long>> inc
3876	+	= (x) -> Monad.unit(x + 1);
3877	+
3878	+	// unit is a right identity: m >>= unit === m
3879	+	Monad.assertFutureEquals(inc.apply(5L).thenCompose(unit),
3880	+	inc.apply(5L));
3881	+	// unit is a left identity: (unit x) >>= f === f x
3882	+	Monad.assertFutureEquals(unit.apply(5L).thenCompose(inc),
3883	+	inc.apply(5L));
3884	+
3885	+	// associativity: (m >>= f) >>= g === m >>= ( \x -> (f x >>= g) )
3886	+	Monad.assertFutureEquals(
3887	+	unit.apply(5L).thenCompose(inc).thenCompose(triple),
3888	+	unit.apply(5L).thenCompose((x) -> inc.apply(x).thenCompose(triple)));
3889	+
3890	+	// The case for CompletableFuture as an additive monad is weaker...
3891	+
3892	+	// zero is a monadic zero
3893	+	Monad.assertZero(zero);
3894	+
3895	+	// left zero: zero >>= f === zero
3896	+	Monad.assertZero(zero.thenCompose(inc));
3897	+	// right zero: f >>= (\x -> zero) === zero
3898	+	Monad.assertZero(inc.apply(5L).thenCompose((x) -> zero));
3899	+
3900	+	// f plus zero === f
3901	+	Monad.assertFutureEquals(Monad.unit(5L),
3902	+	Monad.plus(Monad.unit(5L), zero));
3903	+	// zero plus f === f
3904	+	Monad.assertFutureEquals(Monad.unit(5L),
3905	+	Monad.plus(zero, Monad.unit(5L)));
3906	+	// zero plus zero === zero
3907	+	Monad.assertZero(Monad.plus(zero, zero));
3908	+	{
3909	+	CompletableFuture<Long> f = Monad.plus(Monad.unit(5L),
3910	+	Monad.unit(8L));
3911	+	// non-determinism
3912	+	assertTrue(f.get() == 5L || f.get() == 8L);
3913	+	}
3914	+
3915	+	CompletableFuture<Long> godot = new CompletableFuture<>();
3916	+	// f plus godot === f (doesn't wait for godot)
3917	+	Monad.assertFutureEquals(Monad.unit(5L),
3918	+	Monad.plus(Monad.unit(5L), godot));
3919	+	// godot plus f === f (doesn't wait for godot)
3920	+	Monad.assertFutureEquals(Monad.unit(5L),
3921	+	Monad.plus(godot, Monad.unit(5L)));
3922	+	}
3923	+
3924	+	//     static <U> U join(CompletionStage<U> stage) {
3925	+	//         CompletableFuture<U> f = new CompletableFuture<>();
3926	+	//         stage.whenComplete((v, ex) -> {
3927	+	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
3928	+	//         });
3929	+	//         return f.join();
3930	+	//     }
3931	+
3932	+	//     static <U> boolean isDone(CompletionStage<U> stage) {
3933	+	//         CompletableFuture<U> f = new CompletableFuture<>();
3934	+	//         stage.whenComplete((v, ex) -> {
3935	+	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
3936	+	//         });
3937	+	//         return f.isDone();
3938	+	//     }
3939	+
3940	+	//     static <U> U join2(CompletionStage<U> stage) {
3941	+	//         return stage.toCompletableFuture().copy().join();
3942	+	//     }
3943	+
3944	+	//     static <U> boolean isDone2(CompletionStage<U> stage) {
3945	+	//         return stage.toCompletableFuture().copy().isDone();
3946	+	//     }
3947	+
3948		}

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