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Comparing jsr166/src/test/tck/CompletableFutureTest.java (file contents):
Revision 1.31 by jsr166, Mon Sep 9 06:48:27 2013 UTC vs.
Revision 1.203 by jsr166, Sat Sep 22 22:25:12 2018 UTC

#	Line 5 | Line 5
5		* http://creativecommons.org/publicdomain/zero/1.0/
6		*/
7
8	<	import junit.framework.*;
8	>	import static java.util.concurrent.TimeUnit.MILLISECONDS;
9	>	import static java.util.concurrent.TimeUnit.SECONDS;
10	>	import static java.util.concurrent.CompletableFuture.completedFuture;
11	>	import static java.util.concurrent.CompletableFuture.failedFuture;
12	>
13	>	import java.lang.reflect.Method;
14	>	import java.lang.reflect.Modifier;
15	>
16	>	import java.util.stream.Collectors;
17	>	import java.util.stream.Stream;
18	>
19	>	import java.util.ArrayList;
20	>	import java.util.Arrays;
21	>	import java.util.List;
22	>	import java.util.Objects;
23	>	import java.util.Set;
24		import java.util.concurrent.Callable;
10	–	import java.util.concurrent.Executor;
11	–	import java.util.concurrent.ExecutorService;
12	–	import java.util.concurrent.Executors;
25		import java.util.concurrent.CancellationException;
14	–	import java.util.concurrent.CountDownLatch;
15	–	import java.util.concurrent.ExecutionException;
16	–	import java.util.concurrent.Future;
26		import java.util.concurrent.CompletableFuture;
27		import java.util.concurrent.CompletionException;
28	+	import java.util.concurrent.CompletionStage;
29	+	import java.util.concurrent.ExecutionException;
30	+	import java.util.concurrent.Executor;
31	+	import java.util.concurrent.ForkJoinPool;
32	+	import java.util.concurrent.ForkJoinTask;
33	+	import java.util.concurrent.RejectedExecutionException;
34		import java.util.concurrent.TimeoutException;
35		import java.util.concurrent.atomic.AtomicInteger;
36	<	import static java.util.concurrent.TimeUnit.MILLISECONDS;
22	<	import static java.util.concurrent.TimeUnit.SECONDS;
23	<	import java.util.*;
24	<	import java.util.function.Supplier;
25	<	import java.util.function.Consumer;
36	>	import java.util.concurrent.atomic.AtomicReference;
37		import java.util.function.BiConsumer;
27	–	import java.util.function.Function;
38		import java.util.function.BiFunction;
39	+	import java.util.function.Consumer;
40	+	import java.util.function.Function;
41	+	import java.util.function.Predicate;
42	+	import java.util.function.Supplier;
43	+
44	+	import junit.framework.Test;
45	+	import junit.framework.TestSuite;
46
47		public class CompletableFutureTest extends JSR166TestCase {
48
49		public static void main(String[] args) {
50	<	junit.textui.TestRunner.run(suite());
50	>	main(suite(), args);
51		}
52		public static Test suite() {
53		return new TestSuite(CompletableFutureTest.class);
#	Line 41 | Line 58 | public class CompletableFutureTest exten
58		void checkIncomplete(CompletableFuture<?> f) {
59		assertFalse(f.isDone());
60		assertFalse(f.isCancelled());
61	<	assertTrue(f.toString().contains("[Not completed]"));
61	>	assertTrue(f.toString().matches(".*\\[.*Not completed.*\\]"));
62	>
63	>	Object result = null;
64		try {
65	<	assertNull(f.getNow(null));
65	>	result = f.getNow(null);
66		} catch (Throwable fail) { threadUnexpectedException(fail); }
67	+	assertNull(result);
68	+
69		try {
70	<	f.get(0L, SECONDS);
70	>	f.get(randomExpiredTimeout(), randomTimeUnit());
71		shouldThrow();
72		}
73		catch (TimeoutException success) {}
74		catch (Throwable fail) { threadUnexpectedException(fail); }
75		}
76
77	<	<T> void checkCompletedNormally(CompletableFuture<T> f, T value) {
78	<	try {
79	<	assertEquals(value, f.get(LONG_DELAY_MS, MILLISECONDS));
80	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
81	<	try {
82	<	assertEquals(value, f.join());
83	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
63	<	try {
64	<	assertEquals(value, f.getNow(null));
65	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
77	>	<T> void checkCompletedNormally(CompletableFuture<T> f, T expectedValue) {
78	>	checkTimedGet(f, expectedValue);
79	>
80	>	assertEquals(expectedValue, f.join());
81	>	assertEquals(expectedValue, f.getNow(null));
82	>
83	>	T result = null;
84		try {
85	<	assertEquals(value, f.get());
85	>	result = f.get();
86		} catch (Throwable fail) { threadUnexpectedException(fail); }
87	+	assertEquals(expectedValue, result);
88	+
89		assertTrue(f.isDone());
90		assertFalse(f.isCancelled());
91		assertFalse(f.isCompletedExceptionally());
92	<	assertTrue(f.toString().contains("[Completed normally]"));
92	>	assertTrue(f.toString().matches(".*\\[.*Completed normally.*\\]"));
93		}
94
95	<	void checkCompletedWithWrappedCFException(CompletableFuture<?> f) {
95	>	/**
96	>	* Returns the "raw" internal exceptional completion of f,
97	>	* without any additional wrapping with CompletionException.
98	>	*/
99	>	Throwable exceptionalCompletion(CompletableFuture<?> f) {
100	>	// handle (and whenComplete and exceptionally) can distinguish
101	>	// between "direct" and "wrapped" exceptional completion
102	>	return f.handle((u, t) -> t).join();
103	>	}
104	>
105	>	void checkCompletedExceptionally(CompletableFuture<?> f,
106	>	boolean wrapped,
107	>	Consumer<Throwable> checker) {
108	>	Throwable cause = exceptionalCompletion(f);
109	>	if (wrapped) {
110	>	assertTrue(cause instanceof CompletionException);
111	>	cause = cause.getCause();
112	>	}
113	>	checker.accept(cause);
114	>
115	>	long startTime = System.nanoTime();
116		try {
117		f.get(LONG_DELAY_MS, MILLISECONDS);
118		shouldThrow();
119		} catch (ExecutionException success) {
120	<	assertTrue(success.getCause() instanceof CFException);
120	>	assertSame(cause, success.getCause());
121		} catch (Throwable fail) { threadUnexpectedException(fail); }
122	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
123	+
124		try {
125		f.join();
126		shouldThrow();
127		} catch (CompletionException success) {
128	<	assertTrue(success.getCause() instanceof CFException);
129	<	}
128	>	assertSame(cause, success.getCause());
129	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
130	>
131		try {
132		f.getNow(null);
133		shouldThrow();
134		} catch (CompletionException success) {
135	<	assertTrue(success.getCause() instanceof CFException);
136	<	}
135	>	assertSame(cause, success.getCause());
136	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
137	>
138		try {
139		f.get();
140		shouldThrow();
141		} catch (ExecutionException success) {
142	<	assertTrue(success.getCause() instanceof CFException);
142	>	assertSame(cause, success.getCause());
143		} catch (Throwable fail) { threadUnexpectedException(fail); }
144	<	assertTrue(f.isDone());
144	>
145		assertFalse(f.isCancelled());
146	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
146	>	assertTrue(f.isDone());
147	>	assertTrue(f.isCompletedExceptionally());
148	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
149	>	}
150	>
151	>	void checkCompletedWithWrappedCFException(CompletableFuture<?> f) {
152	>	checkCompletedExceptionally(f, true,
153	>	t -> assertTrue(t instanceof CFException));
154	>	}
155	>
156	>	void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) {
157	>	checkCompletedExceptionally(f, true,
158	>	t -> assertTrue(t instanceof CancellationException));
159	>	}
160	>
161	>	void checkCompletedWithTimeoutException(CompletableFuture<?> f) {
162	>	checkCompletedExceptionally(f, false,
163	>	t -> assertTrue(t instanceof TimeoutException));
164	>	}
165	>
166	>	void checkCompletedWithWrappedException(CompletableFuture<?> f,
167	>	Throwable ex) {
168	>	checkCompletedExceptionally(f, true, t -> assertSame(t, ex));
169	>	}
170	>
171	>	void checkCompletedExceptionally(CompletableFuture<?> f, Throwable ex) {
172	>	checkCompletedExceptionally(f, false, t -> assertSame(t, ex));
173		}
174
175		void checkCancelled(CompletableFuture<?> f) {
176	+	long startTime = System.nanoTime();
177		try {
178		f.get(LONG_DELAY_MS, MILLISECONDS);
179		shouldThrow();
180		} catch (CancellationException success) {
181		} catch (Throwable fail) { threadUnexpectedException(fail); }
182	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
183	+
184		try {
185		f.join();
186		shouldThrow();
#	Line 121 | Line 194 | public class CompletableFutureTest exten
194		shouldThrow();
195		} catch (CancellationException success) {
196		} catch (Throwable fail) { threadUnexpectedException(fail); }
124	–	assertTrue(f.isDone());
125	–	assertTrue(f.isCompletedExceptionally());
126	–	assertTrue(f.isCancelled());
127	–	assertTrue(f.toString().contains("[Completed exceptionally]"));
128	–	}
197
198	<	void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) {
199	<	try {
132	<	f.get(LONG_DELAY_MS, MILLISECONDS);
133	<	shouldThrow();
134	<	} catch (ExecutionException success) {
135	<	assertTrue(success.getCause() instanceof CancellationException);
136	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
137	<	try {
138	<	f.join();
139	<	shouldThrow();
140	<	} catch (CompletionException success) {
141	<	assertTrue(success.getCause() instanceof CancellationException);
142	<	}
143	<	try {
144	<	f.getNow(null);
145	<	shouldThrow();
146	<	} catch (CompletionException success) {
147	<	assertTrue(success.getCause() instanceof CancellationException);
148	<	}
149	<	try {
150	<	f.get();
151	<	shouldThrow();
152	<	} catch (ExecutionException success) {
153	<	assertTrue(success.getCause() instanceof CancellationException);
154	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
198	>	assertTrue(exceptionalCompletion(f) instanceof CancellationException);
199	>
200		assertTrue(f.isDone());
156	–	assertFalse(f.isCancelled());
201		assertTrue(f.isCompletedExceptionally());
202	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
202	>	assertTrue(f.isCancelled());
203	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
204		}
205
206		/**
#	Line 172 | Line 217 | public class CompletableFutureTest exten
217		* isCancelled, join, get, and getNow
218		*/
219		public void testComplete() {
220	+	for (Integer v1 : new Integer[] { 1, null })
221	+	{
222		CompletableFuture<Integer> f = new CompletableFuture<>();
223		checkIncomplete(f);
224	<	f.complete(one);
225	<	checkCompletedNormally(f, one);
226	<	}
224	>	assertTrue(f.complete(v1));
225	>	assertFalse(f.complete(v1));
226	>	checkCompletedNormally(f, v1);
227	>	}}
228
229		/**
230		* completeExceptionally completes exceptionally, as indicated by
#	Line 184 | Line 232 | public class CompletableFutureTest exten
232		*/
233		public void testCompleteExceptionally() {
234		CompletableFuture<Integer> f = new CompletableFuture<>();
235	+	CFException ex = new CFException();
236		checkIncomplete(f);
237	<	f.completeExceptionally(new CFException());
238	<	checkCompletedWithWrappedCFException(f);
237	>	f.completeExceptionally(ex);
238	>	checkCompletedExceptionally(f, ex);
239		}
240
241		/**
#	Line 194 | Line 243 | public class CompletableFutureTest exten
243		* methods isDone, isCancelled, join, get, and getNow
244		*/
245		public void testCancel() {
246	+	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
247	+	{
248		CompletableFuture<Integer> f = new CompletableFuture<>();
249		checkIncomplete(f);
250	<	assertTrue(f.cancel(true));
250	>	assertTrue(f.cancel(mayInterruptIfRunning));
251	>	assertTrue(f.cancel(mayInterruptIfRunning));
252	>	assertTrue(f.cancel(!mayInterruptIfRunning));
253		checkCancelled(f);
254	<	}
254	>	}}
255
256		/**
257		* obtrudeValue forces completion with given value
#	Line 206 | Line 259 | public class CompletableFutureTest exten
259		public void testObtrudeValue() {
260		CompletableFuture<Integer> f = new CompletableFuture<>();
261		checkIncomplete(f);
262	<	f.complete(one);
262	>	assertTrue(f.complete(one));
263		checkCompletedNormally(f, one);
264		f.obtrudeValue(three);
265		checkCompletedNormally(f, three);
#	Line 215 | Line 268 | public class CompletableFutureTest exten
268		f = new CompletableFuture<>();
269		f.obtrudeValue(three);
270		checkCompletedNormally(f, three);
271	+	f.obtrudeValue(null);
272	+	checkCompletedNormally(f, null);
273		f = new CompletableFuture<>();
274		f.completeExceptionally(new CFException());
275		f.obtrudeValue(four);
#	Line 225 | Line 280 | public class CompletableFutureTest exten
280		* obtrudeException forces completion with given exception
281		*/
282		public void testObtrudeException() {
283	<	CompletableFuture<Integer> f = new CompletableFuture<>();
284	<	checkIncomplete(f);
285	<	f.complete(one);
286	<	checkCompletedNormally(f, one);
287	<	f.obtrudeException(new CFException());
288	<	checkCompletedWithWrappedCFException(f);
283	>	for (Integer v1 : new Integer[] { 1, null })
284	>	{
285	>	CFException ex;
286	>	CompletableFuture<Integer> f;
287	>
288	>	f = new CompletableFuture<>();
289	>	assertTrue(f.complete(v1));
290	>	for (int i = 0; i < 2; i++) {
291	>	f.obtrudeException(ex = new CFException());
292	>	checkCompletedExceptionally(f, ex);
293	>	}
294	>
295		f = new CompletableFuture<>();
296	<	f.obtrudeException(new CFException());
297	<	checkCompletedWithWrappedCFException(f);
296	>	for (int i = 0; i < 2; i++) {
297	>	f.obtrudeException(ex = new CFException());
298	>	checkCompletedExceptionally(f, ex);
299	>	}
300	>
301		f = new CompletableFuture<>();
302		f.completeExceptionally(new CFException());
303	<	f.obtrudeValue(four);
304	<	checkCompletedNormally(f, four);
305	<	f.obtrudeException(new CFException());
306	<	checkCompletedWithWrappedCFException(f);
307	<	}
303	>	f.obtrudeValue(v1);
304	>	checkCompletedNormally(f, v1);
305	>	f.obtrudeException(ex = new CFException());
306	>	checkCompletedExceptionally(f, ex);
307	>	f.completeExceptionally(new CFException());
308	>	checkCompletedExceptionally(f, ex);
309	>	assertFalse(f.complete(v1));
310	>	checkCompletedExceptionally(f, ex);
311	>	}}
312
313		/**
314		* getNumberOfDependents returns number of dependent tasks
315		*/
316		public void testGetNumberOfDependents() {
317	<	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);
317	>	for (ExecutionMode m : ExecutionMode.values())
318	>	for (Integer v1 : new Integer[] { 1, null })
319	>	{
320	>	CompletableFuture<Integer> f = new CompletableFuture<>();
321	>	assertEquals(0, f.getNumberOfDependents());
322	>	final CompletableFuture<Void> g = m.thenRun(f, new Noop(m));
323	>	assertEquals(1, f.getNumberOfDependents());
324	>	assertEquals(0, g.getNumberOfDependents());
325	>	final CompletableFuture<Void> h = m.thenRun(f, new Noop(m));
326	>	assertEquals(2, f.getNumberOfDependents());
327	>	assertEquals(0, h.getNumberOfDependents());
328	>	assertTrue(f.complete(v1));
329		checkCompletedNormally(g, null);
330	<	assertEquals(f.getNumberOfDependents(), 0);
331	<	assertEquals(g.getNumberOfDependents(), 0);
332	<	}
330	>	checkCompletedNormally(h, null);
331	>	assertEquals(0, f.getNumberOfDependents());
332	>	assertEquals(0, g.getNumberOfDependents());
333	>	assertEquals(0, h.getNumberOfDependents());
334	>	}}
335
336		/**
337		* toString indicates current completion state
338		*/
339	<	public void testToString() {
340	<	CompletableFuture<String> f;
341	<
342	<	f = new CompletableFuture<String>();
343	<	assertTrue(f.toString().contains("[Not completed]"));
344	<
345	<	f.complete("foo");
346	<	assertTrue(f.toString().contains("[Completed normally]"));
347	<
348	<	f = new CompletableFuture<String>();
349	<	f.completeExceptionally(new IndexOutOfBoundsException());
350	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
339	>	public void testToString_incomplete() {
340	>	CompletableFuture<String> f = new CompletableFuture<>();
341	>	assertTrue(f.toString().matches(".*\\[.*Not completed.*\\]"));
342	>	if (testImplementationDetails)
343	>	assertEquals(identityString(f) + "[Not completed]",
344	>	f.toString());
345	>	}
346	>
347	>	public void testToString_normal() {
348	>	CompletableFuture<String> f = new CompletableFuture<>();
349	>	assertTrue(f.complete("foo"));
350	>	assertTrue(f.toString().matches(".*\\[.*Completed normally.*\\]"));
351	>	if (testImplementationDetails)
352	>	assertEquals(identityString(f) + "[Completed normally]",
353	>	f.toString());
354	>	}
355	>
356	>	public void testToString_exception() {
357	>	CompletableFuture<String> f = new CompletableFuture<>();
358	>	assertTrue(f.completeExceptionally(new IndexOutOfBoundsException()));
359	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
360	>	if (testImplementationDetails)
361	>	assertTrue(f.toString().startsWith(
362	>	identityString(f) + "[Completed exceptionally: "));
363	>	}
364	>
365	>	public void testToString_cancelled() {
366	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false }) {
367	>	CompletableFuture<String> f = new CompletableFuture<>();
368	>	assertTrue(f.cancel(mayInterruptIfRunning));
369	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
370	>	if (testImplementationDetails)
371	>	assertTrue(f.toString().startsWith(
372	>	identityString(f) + "[Completed exceptionally: "));
373	>	}
374		}
375
376		/**
#	Line 284 | Line 381 | public class CompletableFutureTest exten
381		checkCompletedNormally(f, "test");
382		}
383
384	<	// Choose non-commutative actions for better coverage
385	<
386	<	static final Supplier<Integer> supplyOne =
387	<	() -> Integer.valueOf(1);
388	<	static final Function<Integer, Integer> inc =
389	<	(Integer x) -> Integer.valueOf(x.intValue() + 1);
390	<	static final BiFunction<Integer, Integer, Integer> subtract =
294	<	(Integer x, Integer y) -> Integer.valueOf(x.intValue() - y.intValue());
295	<	static final class IncAction implements Consumer<Integer> {
296	<	int value;
297	<	public void accept(Integer x) { value = x.intValue() + 1; }
298	<	}
299	<	static final class SubtractAction implements BiConsumer<Integer, Integer> {
300	<	int value;
301	<	public void accept(Integer x, Integer y) {
302	<	value = x.intValue() - y.intValue();
384	>	abstract static class CheckedAction {
385	>	int invocationCount = 0;
386	>	final ExecutionMode m;
387	>	CheckedAction(ExecutionMode m) { this.m = m; }
388	>	void invoked() {
389	>	m.checkExecutionMode();
390	>	assertEquals(0, invocationCount++);
391		}
392	<	}
393	<	static final class Noop implements Runnable {
306	<	boolean ran;
307	<	public void run() { ran = true; }
308	<	}
309	<
310	<	static final class FailingSupplier implements Supplier<Integer> {
311	<	boolean ran;
312	<	public Integer get() { ran = true; throw new CFException(); }
313	<	}
314	<	static final class FailingConsumer implements Consumer<Integer> {
315	<	boolean ran;
316	<	public void accept(Integer x) { ran = true; throw new CFException(); }
317	<	}
318	<	static final class FailingBiConsumer implements BiConsumer<Integer, Integer> {
319	<	boolean ran;
320	<	public void accept(Integer x, Integer y) { ran = true; throw new CFException(); }
321	<	}
322	<	static final class FailingFunction implements Function<Integer, Integer> {
323	<	boolean ran;
324	<	public Integer apply(Integer x) { ran = true; throw new CFException(); }
325	<	}
326	<	static final class FailingBiFunction implements BiFunction<Integer, Integer, Integer> {
327	<	boolean ran;
328	<	public Integer apply(Integer x, Integer y) { ran = true; throw new CFException(); }
329	<	}
330	<	static final class FailingNoop implements Runnable {
331	<	boolean ran;
332	<	public void run() { ran = true; throw new CFException(); }
392	>	void assertNotInvoked() { assertEquals(0, invocationCount); }
393	>	void assertInvoked() { assertEquals(1, invocationCount); }
394		}
395
396	<	static final class CompletableFutureInc
397	<	implements Function<Integer, CompletableFuture<Integer>> {
398	<	boolean ran;
399	<	public CompletableFuture<Integer> apply(Integer x) {
400	<	ran = true;
401	<	CompletableFuture<Integer> f = new CompletableFuture<>();
341	<	f.complete(Integer.valueOf(x.intValue() + 1));
342	<	return f;
396	>	abstract static class CheckedIntegerAction extends CheckedAction {
397	>	Integer value;
398	>	CheckedIntegerAction(ExecutionMode m) { super(m); }
399	>	void assertValue(Integer expected) {
400	>	assertInvoked();
401	>	assertEquals(expected, value);
402		}
403		}
404
405	<	static final class FailingCompletableFutureFunction
406	<	implements Function<Integer, CompletableFuture<Integer>> {
407	<	boolean ran;
408	<	public CompletableFuture<Integer> apply(Integer x) {
409	<	ran = true; throw new CFException();
405	>	static class IntegerSupplier extends CheckedAction
406	>	implements Supplier<Integer>
407	>	{
408	>	final Integer value;
409	>	IntegerSupplier(ExecutionMode m, Integer value) {
410	>	super(m);
411	>	this.value = value;
412		}
413	<	}
414	<
415	<	// Used for explicit executor tests
355	<	static final class ThreadExecutor implements Executor {
356	<	AtomicInteger count = new AtomicInteger(0);
357	<
358	<	public void execute(Runnable r) {
359	<	count.getAndIncrement();
360	<	new Thread(r).start();
413	>	public Integer get() {
414	>	invoked();
415	>	return value;
416		}
417		}
418
419	<	static final class ExceptionToInteger implements Function<Throwable, Integer> {
420	<	public Integer apply(Throwable x) { return Integer.valueOf(3); }
419	>	// A function that handles and produces null values as well.
420	>	static Integer inc(Integer x) {
421	>	return (x == null) ? null : x + 1;
422		}
423
424	<	static final class IntegerHandler implements BiFunction<Integer, Throwable, Integer> {
425	<	boolean ran;
426	<	public Integer apply(Integer x, Throwable t) {
427	<	ran = true;
428	<	return (t == null) ? two : three;
424	>	static class NoopConsumer extends CheckedIntegerAction
425	>	implements Consumer<Integer>
426	>	{
427	>	NoopConsumer(ExecutionMode m) { super(m); }
428	>	public void accept(Integer x) {
429	>	invoked();
430	>	value = x;
431		}
432		}
433
434	<	/**
435	<	* exceptionally action completes with function value on source
436	<	* exception; otherwise with source value
437	<	*/
438	<	public void testExceptionally() {
439	<	CompletableFuture<Integer> f = new CompletableFuture<>();
440	<	ExceptionToInteger r = new ExceptionToInteger();
441	<	CompletableFuture<Integer> g = f.exceptionally(r);
384	<	f.completeExceptionally(new CFException());
385	<	checkCompletedNormally(g, three);
386	<
387	<	f = new CompletableFuture<>();
388	<	r = new ExceptionToInteger();
389	<	g = f.exceptionally(r);
390	<	f.complete(one);
391	<	checkCompletedNormally(g, one);
392	<	}
393	<
394	<	/**
395	<	* handle action completes normally with function value on either
396	<	* normal or exceptional completion of source
397	<	*/
398	<	public void testHandle() {
399	<	CompletableFuture<Integer> f, g;
400	<	IntegerHandler r;
401	<
402	<	f = new CompletableFuture<>();
403	<	f.completeExceptionally(new CFException());
404	<	g = f.handle(r = new IntegerHandler());
405	<	assertTrue(r.ran);
406	<	checkCompletedNormally(g, three);
407	<
408	<	f = new CompletableFuture<>();
409	<	g = f.handle(r = new IntegerHandler());
410	<	assertFalse(r.ran);
411	<	f.completeExceptionally(new CFException());
412	<	checkCompletedNormally(g, three);
413	<	assertTrue(r.ran);
414	<
415	<	f = new CompletableFuture<>();
416	<	f.complete(one);
417	<	g = f.handle(r = new IntegerHandler());
418	<	assertTrue(r.ran);
419	<	checkCompletedNormally(g, two);
420	<
421	<	f = new CompletableFuture<>();
422	<	g = f.handle(r = new IntegerHandler());
423	<	assertFalse(r.ran);
424	<	f.complete(one);
425	<	assertTrue(r.ran);
426	<	checkCompletedNormally(g, two);
427	<	}
428	<
429	<	/**
430	<	* runAsync completes after running Runnable
431	<	*/
432	<	public void testRunAsync() {
433	<	Noop r = new Noop();
434	<	CompletableFuture<Void> f = CompletableFuture.runAsync(r);
435	<	assertNull(f.join());
436	<	assertTrue(r.ran);
437	<	checkCompletedNormally(f, null);
438	<	}
439	<
440	<	/**
441	<	* runAsync with executor completes after running Runnable
442	<	*/
443	<	public void testRunAsync2() {
444	<	Noop r = new Noop();
445	<	ThreadExecutor exec = new ThreadExecutor();
446	<	CompletableFuture<Void> f = CompletableFuture.runAsync(r, exec);
447	<	assertNull(f.join());
448	<	assertTrue(r.ran);
449	<	checkCompletedNormally(f, null);
450	<	assertEquals(1, exec.count.get());
451	<	}
452	<
453	<	/**
454	<	* failing runAsync completes exceptionally after running Runnable
455	<	*/
456	<	public void testRunAsync3() {
457	<	FailingNoop r = new FailingNoop();
458	<	CompletableFuture<Void> f = CompletableFuture.runAsync(r);
459	<	checkCompletedWithWrappedCFException(f);
460	<	assertTrue(r.ran);
461	<	}
462	<
463	<	/**
464	<	* supplyAsync completes with result of supplier
465	<	*/
466	<	public void testSupplyAsync() {
467	<	CompletableFuture<Integer> f;
468	<	f = CompletableFuture.supplyAsync(supplyOne);
469	<	assertEquals(f.join(), one);
470	<	checkCompletedNormally(f, one);
471	<	}
472	<
473	<	/**
474	<	* supplyAsync with executor completes with result of supplier
475	<	*/
476	<	public void testSupplyAsync2() {
477	<	CompletableFuture<Integer> f;
478	<	f = CompletableFuture.supplyAsync(supplyOne, new ThreadExecutor());
479	<	assertEquals(f.join(), one);
480	<	checkCompletedNormally(f, one);
481	<	}
482	<
483	<	/**
484	<	* Failing supplyAsync completes exceptionally
485	<	*/
486	<	public void testSupplyAsync3() {
487	<	FailingSupplier r = new FailingSupplier();
488	<	CompletableFuture<Integer> f = CompletableFuture.supplyAsync(r);
489	<	checkCompletedWithWrappedCFException(f);
490	<	assertTrue(r.ran);
491	<	}
492	<
493	<	// seq completion methods
494	<
495	<	/**
496	<	* thenRun result completes normally after normal completion of source
497	<	*/
498	<	public void testThenRun() {
499	<	CompletableFuture<Integer> f;
500	<	CompletableFuture<Void> g;
501	<	Noop r;
502	<
503	<	f = new CompletableFuture<>();
504	<	g = f.thenRun(r = new Noop());
505	<	f.complete(null);
506	<	checkCompletedNormally(g, null);
507	<	assertTrue(r.ran);
508	<
509	<	f = new CompletableFuture<>();
510	<	f.complete(null);
511	<	g = f.thenRun(r = new Noop());
512	<	checkCompletedNormally(g, null);
513	<	assertTrue(r.ran);
514	<	}
515	<
516	<	/**
517	<	* thenRun result completes exceptionally after exceptional
518	<	* completion of source
519	<	*/
520	<	public void testThenRun2() {
521	<	CompletableFuture<Integer> f;
522	<	CompletableFuture<Void> g;
523	<	Noop r;
524	<
525	<	f = new CompletableFuture<>();
526	<	g = f.thenRun(r = new Noop());
527	<	f.completeExceptionally(new CFException());
528	<	checkCompletedWithWrappedCFException(g);
529	<	assertFalse(r.ran);
530	<
531	<	f = new CompletableFuture<>();
532	<	f.completeExceptionally(new CFException());
533	<	g = f.thenRun(r = new Noop());
534	<	checkCompletedWithWrappedCFException(g);
535	<	assertFalse(r.ran);
536	<	}
537	<
538	<	/**
539	<	* thenRun result completes exceptionally if action does
540	<	*/
541	<	public void testThenRun3() {
542	<	CompletableFuture<Integer> f;
543	<	CompletableFuture<Void> g;
544	<	FailingNoop r;
545	<
546	<	f = new CompletableFuture<>();
547	<	g = f.thenRun(r = new FailingNoop());
548	<	f.complete(null);
549	<	checkCompletedWithWrappedCFException(g);
550	<
551	<	f = new CompletableFuture<>();
552	<	f.complete(null);
553	<	g = f.thenRun(r = new FailingNoop());
554	<	checkCompletedWithWrappedCFException(g);
555	<	}
556	<
557	<	/**
558	<	* thenRun result completes exceptionally if source cancelled
559	<	*/
560	<	public void testThenRun4() {
561	<	CompletableFuture<Integer> f;
562	<	CompletableFuture<Void> g;
563	<	Noop r;
564	<
565	<	f = new CompletableFuture<>();
566	<	g = f.thenRun(r = new Noop());
567	<	assertTrue(f.cancel(true));
568	<	checkCompletedWithWrappedCancellationException(g);
569	<
570	<	f = new CompletableFuture<>();
571	<	assertTrue(f.cancel(true));
572	<	g = f.thenRun(r = new Noop());
573	<	checkCompletedWithWrappedCancellationException(g);
574	<	}
575	<
576	<	/**
577	<	* thenApply result completes normally after normal completion of source
578	<	*/
579	<	public void testThenApply() {
580	<	CompletableFuture<Integer> f = new CompletableFuture<>();
581	<	CompletableFuture<Integer> g = f.thenApply(inc);
582	<	f.complete(one);
583	<	checkCompletedNormally(g, two);
584	<	}
585	<
586	<	/**
587	<	* thenApply result completes exceptionally after exceptional
588	<	* completion of source
589	<	*/
590	<	public void testThenApply2() {
591	<	CompletableFuture<Integer> f = new CompletableFuture<>();
592	<	CompletableFuture<Integer> g = f.thenApply(inc);
593	<	f.completeExceptionally(new CFException());
594	<	checkCompletedWithWrappedCFException(g);
434	>	static class IncFunction extends CheckedIntegerAction
435	>	implements Function<Integer,Integer>
436	>	{
437	>	IncFunction(ExecutionMode m) { super(m); }
438	>	public Integer apply(Integer x) {
439	>	invoked();
440	>	return value = inc(x);
441	>	}
442		}
443
444	<	/**
445	<	* thenApply result completes exceptionally if action does
446	<	*/
447	<	public void testThenApply3() {
448	<	CompletableFuture<Integer> f = new CompletableFuture<>();
449	<	CompletableFuture<Integer> g = f.thenApply(new FailingFunction());
603	<	f.complete(one);
604	<	checkCompletedWithWrappedCFException(g);
444	>	// Choose non-commutative actions for better coverage
445	>	// A non-commutative function that handles and produces null values as well.
446	>	static Integer subtract(Integer x, Integer y) {
447	>	return (x == null && y == null) ? null :
448	>	((x == null) ? 42 : x.intValue())
449	>	- ((y == null) ? 99 : y.intValue());
450		}
451
452	<	/**
453	<	* thenApply result completes exceptionally if source cancelled
454	<	*/
455	<	public void testThenApply4() {
456	<	CompletableFuture<Integer> f = new CompletableFuture<>();
457	<	CompletableFuture<Integer> g = f.thenApply(inc);
458	<	assertTrue(f.cancel(true));
459	<	checkCompletedWithWrappedCancellationException(g);
452	>	static class SubtractAction extends CheckedIntegerAction
453	>	implements BiConsumer<Integer, Integer>
454	>	{
455	>	SubtractAction(ExecutionMode m) { super(m); }
456	>	public void accept(Integer x, Integer y) {
457	>	invoked();
458	>	value = subtract(x, y);
459	>	}
460		}
461
462	<	/**
463	<	* thenAccept result completes normally after normal completion of source
464	<	*/
465	<	public void testThenAccept() {
466	<	CompletableFuture<Integer> f = new CompletableFuture<>();
467	<	IncAction r = new IncAction();
468	<	CompletableFuture<Void> g = f.thenAccept(r);
469	<	f.complete(one);
625	<	checkCompletedNormally(g, null);
626	<	assertEquals(r.value, 2);
462	>	static class SubtractFunction extends CheckedIntegerAction
463	>	implements BiFunction<Integer, Integer, Integer>
464	>	{
465	>	SubtractFunction(ExecutionMode m) { super(m); }
466	>	public Integer apply(Integer x, Integer y) {
467	>	invoked();
468	>	return value = subtract(x, y);
469	>	}
470		}
471
472	<	/**
473	<	* thenAccept result completes exceptionally after exceptional
474	<	* completion of source
475	<	*/
476	<	public void testThenAccept2() {
634	<	CompletableFuture<Integer> f = new CompletableFuture<>();
635	<	IncAction r = new IncAction();
636	<	CompletableFuture<Void> g = f.thenAccept(r);
637	<	f.completeExceptionally(new CFException());
638	<	checkCompletedWithWrappedCFException(g);
472	>	static class Noop extends CheckedAction implements Runnable {
473	>	Noop(ExecutionMode m) { super(m); }
474	>	public void run() {
475	>	invoked();
476	>	}
477		}
478
479	<	/**
480	<	* thenAccept result completes exceptionally if action does
481	<	*/
482	<	public void testThenAccept3() {
483	<	CompletableFuture<Integer> f = new CompletableFuture<>();
484	<	FailingConsumer r = new FailingConsumer();
485	<	CompletableFuture<Void> g = f.thenAccept(r);
486	<	f.complete(one);
487	<	checkCompletedWithWrappedCFException(g);
650	<	assertTrue(r.ran);
479	>	static class FailingSupplier extends CheckedAction
480	>	implements Supplier<Integer>
481	>	{
482	>	final CFException ex;
483	>	FailingSupplier(ExecutionMode m) { super(m); ex = new CFException(); }
484	>	public Integer get() {
485	>	invoked();
486	>	throw ex;
487	>	}
488		}
489
490	<	/**
491	<	* thenAccept result completes exceptionally if source cancelled
492	<	*/
493	<	public void testThenAccept4() {
494	<	CompletableFuture<Integer> f = new CompletableFuture<>();
495	<	IncAction r = new IncAction();
496	<	CompletableFuture<Void> g = f.thenAccept(r);
497	<	assertTrue(f.cancel(true));
498	<	checkCompletedWithWrappedCancellationException(g);
490	>	static class FailingConsumer extends CheckedIntegerAction
491	>	implements Consumer<Integer>
492	>	{
493	>	final CFException ex;
494	>	FailingConsumer(ExecutionMode m) { super(m); ex = new CFException(); }
495	>	public void accept(Integer x) {
496	>	invoked();
497	>	value = x;
498	>	throw ex;
499	>	}
500		}
501
502	<	/**
503	<	* thenCombine result completes normally after normal completion
504	<	* of sources
505	<	*/
506	<	public void testThenCombine() {
507	<	CompletableFuture<Integer> f, g, h;
508	<
509	<	f = new CompletableFuture<>();
510	<	g = new CompletableFuture<>();
511	<	h = f.thenCombine(g, subtract);
674	<	f.complete(3);
675	<	checkIncomplete(h);
676	<	g.complete(1);
677	<	checkCompletedNormally(h, 2);
678	<
679	<	f = new CompletableFuture<>();
680	<	g = new CompletableFuture<>();
681	<	h = f.thenCombine(g, subtract);
682	<	g.complete(1);
683	<	checkIncomplete(h);
684	<	f.complete(3);
685	<	checkCompletedNormally(h, 2);
686	<
687	<	f = new CompletableFuture<>();
688	<	g = new CompletableFuture<>();
689	<	g.complete(1);
690	<	f.complete(3);
691	<	h = f.thenCombine(g, subtract);
692	<	checkCompletedNormally(h, 2);
502	>	static class FailingBiConsumer extends CheckedIntegerAction
503	>	implements BiConsumer<Integer, Integer>
504	>	{
505	>	final CFException ex;
506	>	FailingBiConsumer(ExecutionMode m) { super(m); ex = new CFException(); }
507	>	public void accept(Integer x, Integer y) {
508	>	invoked();
509	>	value = subtract(x, y);
510	>	throw ex;
511	>	}
512		}
513
514	<	/**
515	<	* thenCombine result completes exceptionally after exceptional
516	<	* completion of either source
517	<	*/
518	<	public void testThenCombine2() {
519	<	CompletableFuture<Integer> f, g, h;
520	<
521	<	f = new CompletableFuture<>();
522	<	g = new CompletableFuture<>();
523	<	h = f.thenCombine(g, subtract);
705	<	f.completeExceptionally(new CFException());
706	<	checkIncomplete(h);
707	<	g.complete(1);
708	<	checkCompletedWithWrappedCFException(h);
709	<
710	<	f = new CompletableFuture<>();
711	<	g = new CompletableFuture<>();
712	<	h = f.thenCombine(g, subtract);
713	<	g.completeExceptionally(new CFException());
714	<	checkIncomplete(h);
715	<	f.complete(3);
716	<	checkCompletedWithWrappedCFException(h);
717	<
718	<	f = new CompletableFuture<>();
719	<	g = new CompletableFuture<>();
720	<	f.complete(3);
721	<	g.completeExceptionally(new CFException());
722	<	h = f.thenCombine(g, subtract);
723	<	checkCompletedWithWrappedCFException(h);
724	<
725	<	f = new CompletableFuture<>();
726	<	g = new CompletableFuture<>();
727	<	f.completeExceptionally(new CFException());
728	<	g.complete(3);
729	<	h = f.thenCombine(g, subtract);
730	<	checkCompletedWithWrappedCFException(h);
514	>	static class FailingFunction extends CheckedIntegerAction
515	>	implements Function<Integer, Integer>
516	>	{
517	>	final CFException ex;
518	>	FailingFunction(ExecutionMode m) { super(m); ex = new CFException(); }
519	>	public Integer apply(Integer x) {
520	>	invoked();
521	>	value = x;
522	>	throw ex;
523	>	}
524		}
525
526	<	/**
527	<	* thenCombine result completes exceptionally if action does
528	<	*/
529	<	public void testThenCombine3() {
530	<	CompletableFuture<Integer> f = new CompletableFuture<>();
531	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
532	<	FailingBiFunction r = new FailingBiFunction();
533	<	CompletableFuture<Integer> g = f.thenCombine(f2, r);
534	<	f.complete(one);
535	<	checkIncomplete(g);
743	<	assertFalse(r.ran);
744	<	f2.complete(two);
745	<	checkCompletedWithWrappedCFException(g);
746	<	assertTrue(r.ran);
526	>	static class FailingBiFunction extends CheckedIntegerAction
527	>	implements BiFunction<Integer, Integer, Integer>
528	>	{
529	>	final CFException ex;
530	>	FailingBiFunction(ExecutionMode m) { super(m); ex = new CFException(); }
531	>	public Integer apply(Integer x, Integer y) {
532	>	invoked();
533	>	value = subtract(x, y);
534	>	throw ex;
535	>	}
536		}
537
538	<	/**
539	<	* thenCombine result completes exceptionally if either source cancelled
540	<	*/
541	<	public void testThenCombine4() {
542	<	CompletableFuture<Integer> f, g, h;
543	<
544	<	f = new CompletableFuture<>();
756	<	g = new CompletableFuture<>();
757	<	h = f.thenCombine(g, subtract);
758	<	assertTrue(f.cancel(true));
759	<	checkIncomplete(h);
760	<	g.complete(1);
761	<	checkCompletedWithWrappedCancellationException(h);
762	<
763	<	f = new CompletableFuture<>();
764	<	g = new CompletableFuture<>();
765	<	h = f.thenCombine(g, subtract);
766	<	assertTrue(g.cancel(true));
767	<	checkIncomplete(h);
768	<	f.complete(3);
769	<	checkCompletedWithWrappedCancellationException(h);
770	<
771	<	f = new CompletableFuture<>();
772	<	g = new CompletableFuture<>();
773	<	assertTrue(f.cancel(true));
774	<	assertTrue(g.cancel(true));
775	<	h = f.thenCombine(g, subtract);
776	<	checkCompletedWithWrappedCancellationException(h);
538	>	static class FailingRunnable extends CheckedAction implements Runnable {
539	>	final CFException ex;
540	>	FailingRunnable(ExecutionMode m) { super(m); ex = new CFException(); }
541	>	public void run() {
542	>	invoked();
543	>	throw ex;
544	>	}
545		}
546
547	<	/**
548	<	* thenAcceptBoth result completes normally after normal
549	<	* completion of sources
550	<	*/
551	<	public void testThenAcceptBoth() {
552	<	CompletableFuture<Integer> f, g;
553	<	CompletableFuture<Void> h;
554	<	SubtractAction r;
555	<
788	<	f = new CompletableFuture<>();
789	<	g = new CompletableFuture<>();
790	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
791	<	f.complete(3);
792	<	checkIncomplete(h);
793	<	g.complete(1);
794	<	checkCompletedNormally(h, null);
795	<	assertEquals(r.value, 2);
796	<
797	<	f = new CompletableFuture<>();
798	<	g = new CompletableFuture<>();
799	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
800	<	g.complete(1);
801	<	checkIncomplete(h);
802	<	f.complete(3);
803	<	checkCompletedNormally(h, null);
804	<	assertEquals(r.value, 2);
805	<
806	<	f = new CompletableFuture<>();
807	<	g = new CompletableFuture<>();
808	<	g.complete(1);
809	<	f.complete(3);
810	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
811	<	checkCompletedNormally(h, null);
812	<	assertEquals(r.value, 2);
547	>	static class CompletableFutureInc extends CheckedIntegerAction
548	>	implements Function<Integer, CompletableFuture<Integer>>
549	>	{
550	>	CompletableFutureInc(ExecutionMode m) { super(m); }
551	>	public CompletableFuture<Integer> apply(Integer x) {
552	>	invoked();
553	>	value = x;
554	>	return CompletableFuture.completedFuture(inc(x));
555	>	}
556		}
557
558	<	/**
559	<	* thenAcceptBoth result completes exceptionally after exceptional
560	<	* completion of either source
561	<	*/
562	<	public void testThenAcceptBoth2() {
563	<	CompletableFuture<Integer> f, g;
564	<	CompletableFuture<Void> h;
565	<	SubtractAction r;
566	<
824	<	f = new CompletableFuture<>();
825	<	g = new CompletableFuture<>();
826	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
827	<	f.completeExceptionally(new CFException());
828	<	checkIncomplete(h);
829	<	g.complete(1);
830	<	checkCompletedWithWrappedCFException(h);
831	<
832	<	f = new CompletableFuture<>();
833	<	g = new CompletableFuture<>();
834	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
835	<	g.completeExceptionally(new CFException());
836	<	checkIncomplete(h);
837	<	f.complete(3);
838	<	checkCompletedWithWrappedCFException(h);
839	<
840	<	f = new CompletableFuture<>();
841	<	g = new CompletableFuture<>();
842	<	f.complete(3);
843	<	g.completeExceptionally(new CFException());
844	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
845	<	checkCompletedWithWrappedCFException(h);
846	<
847	<	f = new CompletableFuture<>();
848	<	g = new CompletableFuture<>();
849	<	f.completeExceptionally(new CFException());
850	<	g.complete(3);
851	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
852	<	checkCompletedWithWrappedCFException(h);
558	>	static class FailingExceptionalCompletableFutureFunction extends CheckedAction
559	>	implements Function<Throwable, CompletableFuture<Integer>>
560	>	{
561	>	final CFException ex;
562	>	FailingExceptionalCompletableFutureFunction(ExecutionMode m) { super(m); ex = new CFException(); }
563	>	public CompletableFuture<Integer> apply(Throwable x) {
564	>	invoked();
565	>	throw ex;
566	>	}
567		}
568
569	<	/**
570	<	* thenAcceptBoth result completes exceptionally if action does
571	<	*/
572	<	public void testThenAcceptBoth3() {
573	<	CompletableFuture<Integer> f, g;
574	<	CompletableFuture<Void> h;
575	<	FailingBiConsumer r;
576	<
863	<	f = new CompletableFuture<>();
864	<	g = new CompletableFuture<>();
865	<	h = f.thenAcceptBoth(g, r = new FailingBiConsumer());
866	<	f.complete(3);
867	<	checkIncomplete(h);
868	<	g.complete(1);
869	<	checkCompletedWithWrappedCFException(h);
870	<
871	<	f = new CompletableFuture<>();
872	<	g = new CompletableFuture<>();
873	<	f.complete(3);
874	<	g.complete(1);
875	<	h = f.thenAcceptBoth(g, r = new FailingBiConsumer());
876	<	checkCompletedWithWrappedCFException(h);
569	>	static class ExceptionalCompletableFutureFunction extends CheckedAction
570	>	implements Function<Throwable, CompletionStage<Integer>> {
571	>	final Integer value = 3;
572	>	ExceptionalCompletableFutureFunction(ExecutionMode m) { super(m); }
573	>	public CompletionStage<Integer> apply(Throwable x) {
574	>	invoked();
575	>	return CompletableFuture.completedFuture(value);
576	>	}
577		}
578
579	<	/**
580	<	* thenAcceptBoth result completes exceptionally if either source cancelled
581	<	*/
582	<	public void testThenAcceptBoth4() {
583	<	CompletableFuture<Integer> f, g;
584	<	CompletableFuture<Void> h;
585	<	SubtractAction r;
586	<
587	<	f = new CompletableFuture<>();
588	<	g = new CompletableFuture<>();
889	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
890	<	assertTrue(f.cancel(true));
891	<	checkIncomplete(h);
892	<	g.complete(1);
893	<	checkCompletedWithWrappedCancellationException(h);
894	<
895	<	f = new CompletableFuture<>();
896	<	g = new CompletableFuture<>();
897	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
898	<	assertTrue(g.cancel(true));
899	<	checkIncomplete(h);
900	<	f.complete(3);
901	<	checkCompletedWithWrappedCancellationException(h);
902	<
903	<	f = new CompletableFuture<>();
904	<	g = new CompletableFuture<>();
905	<	f.complete(3);
906	<	assertTrue(g.cancel(true));
907	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
908	<	checkCompletedWithWrappedCancellationException(h);
909	<
910	<	f = new CompletableFuture<>();
911	<	g = new CompletableFuture<>();
912	<	assertTrue(f.cancel(true));
913	<	g.complete(3);
914	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
915	<	checkCompletedWithWrappedCancellationException(h);
579	>	static class FailingCompletableFutureFunction extends CheckedIntegerAction
580	>	implements Function<Integer, CompletableFuture<Integer>>
581	>	{
582	>	final CFException ex;
583	>	FailingCompletableFutureFunction(ExecutionMode m) { super(m); ex = new CFException(); }
584	>	public CompletableFuture<Integer> apply(Integer x) {
585	>	invoked();
586	>	value = x;
587	>	throw ex;
588	>	}
589		}
590
591	<	/**
592	<	* runAfterBoth result completes normally after normal
593	<	* completion of sources
594	<	*/
595	<	public void testRunAfterBoth() {
596	<	CompletableFuture<Integer> f, g;
597	<	CompletableFuture<Void> h;
925	<	Noop r;
926	<
927	<	f = new CompletableFuture<>();
928	<	g = new CompletableFuture<>();
929	<	h = f.runAfterBoth(g, r = new Noop());
930	<	f.complete(3);
931	<	checkIncomplete(h);
932	<	g.complete(1);
933	<	checkCompletedNormally(h, null);
934	<	assertTrue(r.ran);
935	<
936	<	f = new CompletableFuture<>();
937	<	g = new CompletableFuture<>();
938	<	h = f.runAfterBoth(g, r = new Noop());
939	<	g.complete(1);
940	<	checkIncomplete(h);
941	<	f.complete(3);
942	<	checkCompletedNormally(h, null);
943	<	assertTrue(r.ran);
944	<
945	<	f = new CompletableFuture<>();
946	<	g = new CompletableFuture<>();
947	<	g.complete(1);
948	<	f.complete(3);
949	<	h = f.runAfterBoth(g, r = new Noop());
950	<	checkCompletedNormally(h, null);
951	<	assertTrue(r.ran);
591	>	static class CountingRejectingExecutor implements Executor {
592	>	final RejectedExecutionException ex = new RejectedExecutionException();
593	>	final AtomicInteger count = new AtomicInteger(0);
594	>	public void execute(Runnable r) {
595	>	count.getAndIncrement();
596	>	throw ex;
597	>	}
598		}
599
600	<	/**
601	<	* runAfterBoth result completes exceptionally after exceptional
602	<	* completion of either source
603	<	*/
604	<	public void testRunAfterBoth2() {
605	<	CompletableFuture<Integer> f, g;
606	<	CompletableFuture<Void> h;
961	<	Noop r;
962	<
963	<	f = new CompletableFuture<>();
964	<	g = new CompletableFuture<>();
965	<	h = f.runAfterBoth(g, r = new Noop());
966	<	f.completeExceptionally(new CFException());
967	<	checkIncomplete(h);
968	<	g.complete(1);
969	<	checkCompletedWithWrappedCFException(h);
970	<	assertFalse(r.ran);
971	<
972	<	f = new CompletableFuture<>();
973	<	g = new CompletableFuture<>();
974	<	h = f.runAfterBoth(g, r = new Noop());
975	<	g.completeExceptionally(new CFException());
976	<	checkIncomplete(h);
977	<	f.complete(3);
978	<	checkCompletedWithWrappedCFException(h);
979	<	assertFalse(r.ran);
980	<
981	<	f = new CompletableFuture<>();
982	<	g = new CompletableFuture<>();
983	<	g.completeExceptionally(new CFException());
984	<	f.complete(3);
985	<	h = f.runAfterBoth(g, r = new Noop());
986	<	checkCompletedWithWrappedCFException(h);
987	<	assertFalse(r.ran);
988	<
989	<	f = new CompletableFuture<>();
990	<	g = new CompletableFuture<>();
991	<	f.completeExceptionally(new CFException());
992	<	g.complete(1);
993	<	h = f.runAfterBoth(g, r = new Noop());
994	<	checkCompletedWithWrappedCFException(h);
995	<	assertFalse(r.ran);
996	<	}
600	>	// Used for explicit executor tests
601	>	static final class ThreadExecutor implements Executor {
602	>	final AtomicInteger count = new AtomicInteger(0);
603	>	static final ThreadGroup tg = new ThreadGroup("ThreadExecutor");
604	>	static boolean startedCurrentThread() {
605	>	return Thread.currentThread().getThreadGroup() == tg;
606	>	}
607
608	<	/**
609	<	* runAfterBoth result completes exceptionally if action does
610	<	*/
611	<	public void testRunAfterBoth3() {
1002	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1003	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1004	<	FailingNoop r = new FailingNoop();
1005	<	CompletableFuture<Void> g = f.runAfterBoth(f2, r);
1006	<	f.complete(one);
1007	<	checkIncomplete(g);
1008	<	f2.complete(two);
1009	<	checkCompletedWithWrappedCFException(g);
608	>	public void execute(Runnable r) {
609	>	count.getAndIncrement();
610	>	new Thread(tg, r).start();
611	>	}
612		}
613
614	<	/**
615	<	* runAfterBoth result completes exceptionally if either source cancelled
1014	<	*/
1015	<	public void testRunAfterBoth4() {
1016	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1017	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1018	<	Noop r = new Noop();
1019	<	CompletableFuture<Void> g = f.runAfterBoth(f2, r);
1020	<	assertTrue(f.cancel(true));
1021	<	f2.complete(two);
1022	<	checkCompletedWithWrappedCancellationException(g);
1023	<	f = new CompletableFuture<>();
1024	<	f2 = new CompletableFuture<>();
1025	<	r = new Noop();
1026	<	g = f.runAfterBoth(f2, r);
1027	<	f.complete(one);
1028	<	assertTrue(f2.cancel(true));
1029	<	checkCompletedWithWrappedCancellationException(g);
1030	<	}
614	>	static final boolean defaultExecutorIsCommonPool
615	>	= ForkJoinPool.getCommonPoolParallelism() > 1;
616
617		/**
618	<	* applyToEither result completes normally after normal completion
619	<	* of either source
618	>	* Permits the testing of parallel code for the 3 different
619	>	* execution modes without copy/pasting all the test methods.
620		*/
621	<	public void testApplyToEither() {
622	<	CompletableFuture<Integer> f = new CompletableFuture<>();
623	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
624	<	CompletableFuture<Integer> g = f.applyToEither(f2, inc);
625	<	f.complete(one);
626	<	checkCompletedNormally(g, two);
627	<	f2.complete(one);
628	<	checkCompletedNormally(g, two);
621	>	enum ExecutionMode {
622	>	SYNC {
623	>	public void checkExecutionMode() {
624	>	assertFalse(ThreadExecutor.startedCurrentThread());
625	>	assertNull(ForkJoinTask.getPool());
626	>	}
627	>	public CompletableFuture<Void> runAsync(Runnable a) {
628	>	throw new UnsupportedOperationException();
629	>	}
630	>	public <U> CompletableFuture<U> supplyAsync(Supplier<U> a) {
631	>	throw new UnsupportedOperationException();
632	>	}
633	>	public <T> CompletableFuture<Void> thenRun
634	>	(CompletableFuture<T> f, Runnable a) {
635	>	return f.thenRun(a);
636	>	}
637	>	public <T> CompletableFuture<Void> thenAccept
638	>	(CompletableFuture<T> f, Consumer<? super T> a) {
639	>	return f.thenAccept(a);
640	>	}
641	>	public <T,U> CompletableFuture<U> thenApply
642	>	(CompletableFuture<T> f, Function<? super T,U> a) {
643	>	return f.thenApply(a);
644	>	}
645	>	public <T,U> CompletableFuture<U> thenCompose
646	>	(CompletableFuture<T> f,
647	>	Function<? super T,? extends CompletionStage<U>> a) {
648	>	return f.thenCompose(a);
649	>	}
650	>	public <T,U> CompletableFuture<U> handle
651	>	(CompletableFuture<T> f,
652	>	BiFunction<? super T,Throwable,? extends U> a) {
653	>	return f.handle(a);
654	>	}
655	>	public <T> CompletableFuture<T> whenComplete
656	>	(CompletableFuture<T> f,
657	>	BiConsumer<? super T,? super Throwable> a) {
658	>	return f.whenComplete(a);
659	>	}
660	>	public <T,U> CompletableFuture<Void> runAfterBoth
661	>	(CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) {
662	>	return f.runAfterBoth(g, a);
663	>	}
664	>	public <T,U> CompletableFuture<Void> thenAcceptBoth
665	>	(CompletableFuture<T> f,
666	>	CompletionStage<? extends U> g,
667	>	BiConsumer<? super T,? super U> a) {
668	>	return f.thenAcceptBoth(g, a);
669	>	}
670	>	public <T,U,V> CompletableFuture<V> thenCombine
671	>	(CompletableFuture<T> f,
672	>	CompletionStage<? extends U> g,
673	>	BiFunction<? super T,? super U,? extends V> a) {
674	>	return f.thenCombine(g, a);
675	>	}
676	>	public <T> CompletableFuture<Void> runAfterEither
677	>	(CompletableFuture<T> f,
678	>	CompletionStage<?> g,
679	>	java.lang.Runnable a) {
680	>	return f.runAfterEither(g, a);
681	>	}
682	>	public <T> CompletableFuture<Void> acceptEither
683	>	(CompletableFuture<T> f,
684	>	CompletionStage<? extends T> g,
685	>	Consumer<? super T> a) {
686	>	return f.acceptEither(g, a);
687	>	}
688	>	public <T,U> CompletableFuture<U> applyToEither
689	>	(CompletableFuture<T> f,
690	>	CompletionStage<? extends T> g,
691	>	Function<? super T,U> a) {
692	>	return f.applyToEither(g, a);
693	>	}
694	>	public <T> CompletableFuture<T> exceptionally
695	>	(CompletableFuture<T> f,
696	>	Function<Throwable, ? extends T> fn) {
697	>	return f.exceptionally(fn);
698	>	}
699	>	public <T> CompletableFuture<T> exceptionallyCompose
700	>	(CompletableFuture<T> f, Function<Throwable, ? extends CompletionStage<T>> fn) {
701	>	return f.exceptionallyCompose(fn);
702	>	}
703	>	},
704	>	ASYNC {
705	>	public void checkExecutionMode() {
706	>	assertEquals(defaultExecutorIsCommonPool,
707	>	(ForkJoinPool.commonPool() == ForkJoinTask.getPool()));
708	>	}
709	>	public CompletableFuture<Void> runAsync(Runnable a) {
710	>	return CompletableFuture.runAsync(a);
711	>	}
712	>	public <U> CompletableFuture<U> supplyAsync(Supplier<U> a) {
713	>	return CompletableFuture.supplyAsync(a);
714	>	}
715	>	public <T> CompletableFuture<Void> thenRun
716	>	(CompletableFuture<T> f, Runnable a) {
717	>	return f.thenRunAsync(a);
718	>	}
719	>	public <T> CompletableFuture<Void> thenAccept
720	>	(CompletableFuture<T> f, Consumer<? super T> a) {
721	>	return f.thenAcceptAsync(a);
722	>	}
723	>	public <T,U> CompletableFuture<U> thenApply
724	>	(CompletableFuture<T> f, Function<? super T,U> a) {
725	>	return f.thenApplyAsync(a);
726	>	}
727	>	public <T,U> CompletableFuture<U> thenCompose
728	>	(CompletableFuture<T> f,
729	>	Function<? super T,? extends CompletionStage<U>> a) {
730	>	return f.thenComposeAsync(a);
731	>	}
732	>	public <T,U> CompletableFuture<U> handle
733	>	(CompletableFuture<T> f,
734	>	BiFunction<? super T,Throwable,? extends U> a) {
735	>	return f.handleAsync(a);
736	>	}
737	>	public <T> CompletableFuture<T> whenComplete
738	>	(CompletableFuture<T> f,
739	>	BiConsumer<? super T,? super Throwable> a) {
740	>	return f.whenCompleteAsync(a);
741	>	}
742	>	public <T,U> CompletableFuture<Void> runAfterBoth
743	>	(CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) {
744	>	return f.runAfterBothAsync(g, a);
745	>	}
746	>	public <T,U> CompletableFuture<Void> thenAcceptBoth
747	>	(CompletableFuture<T> f,
748	>	CompletionStage<? extends U> g,
749	>	BiConsumer<? super T,? super U> a) {
750	>	return f.thenAcceptBothAsync(g, a);
751	>	}
752	>	public <T,U,V> CompletableFuture<V> thenCombine
753	>	(CompletableFuture<T> f,
754	>	CompletionStage<? extends U> g,
755	>	BiFunction<? super T,? super U,? extends V> a) {
756	>	return f.thenCombineAsync(g, a);
757	>	}
758	>	public <T> CompletableFuture<Void> runAfterEither
759	>	(CompletableFuture<T> f,
760	>	CompletionStage<?> g,
761	>	java.lang.Runnable a) {
762	>	return f.runAfterEitherAsync(g, a);
763	>	}
764	>	public <T> CompletableFuture<Void> acceptEither
765	>	(CompletableFuture<T> f,
766	>	CompletionStage<? extends T> g,
767	>	Consumer<? super T> a) {
768	>	return f.acceptEitherAsync(g, a);
769	>	}
770	>	public <T,U> CompletableFuture<U> applyToEither
771	>	(CompletableFuture<T> f,
772	>	CompletionStage<? extends T> g,
773	>	Function<? super T,U> a) {
774	>	return f.applyToEitherAsync(g, a);
775	>	}
776	>	public <T> CompletableFuture<T> exceptionally
777	>	(CompletableFuture<T> f,
778	>	Function<Throwable, ? extends T> fn) {
779	>	return f.exceptionallyAsync(fn);
780	>	}
781
782	<	f = new CompletableFuture<>();
783	<	f.complete(one);
784	<	f2 = new CompletableFuture<>();
785	<	g = f.applyToEither(f2, inc);
1049	<	checkCompletedNormally(g, two);
1050	<	}
782	>	public <T> CompletableFuture<T> exceptionallyCompose
783	>	(CompletableFuture<T> f, Function<Throwable, ? extends CompletionStage<T>> fn) {
784	>	return f.exceptionallyComposeAsync(fn);
785	>	}
786
787	<	/**
1053	<	* applyToEither result completes exceptionally after exceptional
1054	<	* completion of either source
1055	<	*/
1056	<	public void testApplyToEither2() {
1057	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1058	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1059	<	CompletableFuture<Integer> g = f.applyToEither(f2, inc);
1060	<	f.completeExceptionally(new CFException());
1061	<	f2.complete(one);
1062	<	checkCompletedWithWrappedCFException(g);
787	>	},
788
789	<	f = new CompletableFuture<>();
790	<	f2 = new CompletableFuture<>();
791	<	f2.completeExceptionally(new CFException());
792	<	g = f.applyToEither(f2, inc);
793	<	checkCompletedWithWrappedCFException(g);
794	<	}
789	>	EXECUTOR {
790	>	public void checkExecutionMode() {
791	>	assertTrue(ThreadExecutor.startedCurrentThread());
792	>	}
793	>	public CompletableFuture<Void> runAsync(Runnable a) {
794	>	return CompletableFuture.runAsync(a, new ThreadExecutor());
795	>	}
796	>	public <U> CompletableFuture<U> supplyAsync(Supplier<U> a) {
797	>	return CompletableFuture.supplyAsync(a, new ThreadExecutor());
798	>	}
799	>	public <T> CompletableFuture<Void> thenRun
800	>	(CompletableFuture<T> f, Runnable a) {
801	>	return f.thenRunAsync(a, new ThreadExecutor());
802	>	}
803	>	public <T> CompletableFuture<Void> thenAccept
804	>	(CompletableFuture<T> f, Consumer<? super T> a) {
805	>	return f.thenAcceptAsync(a, new ThreadExecutor());
806	>	}
807	>	public <T,U> CompletableFuture<U> thenApply
808	>	(CompletableFuture<T> f, Function<? super T,U> a) {
809	>	return f.thenApplyAsync(a, new ThreadExecutor());
810	>	}
811	>	public <T,U> CompletableFuture<U> thenCompose
812	>	(CompletableFuture<T> f,
813	>	Function<? super T,? extends CompletionStage<U>> a) {
814	>	return f.thenComposeAsync(a, new ThreadExecutor());
815	>	}
816	>	public <T,U> CompletableFuture<U> handle
817	>	(CompletableFuture<T> f,
818	>	BiFunction<? super T,Throwable,? extends U> a) {
819	>	return f.handleAsync(a, new ThreadExecutor());
820	>	}
821	>	public <T> CompletableFuture<T> whenComplete
822	>	(CompletableFuture<T> f,
823	>	BiConsumer<? super T,? super Throwable> a) {
824	>	return f.whenCompleteAsync(a, new ThreadExecutor());
825	>	}
826	>	public <T,U> CompletableFuture<Void> runAfterBoth
827	>	(CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) {
828	>	return f.runAfterBothAsync(g, a, new ThreadExecutor());
829	>	}
830	>	public <T,U> CompletableFuture<Void> thenAcceptBoth
831	>	(CompletableFuture<T> f,
832	>	CompletionStage<? extends U> g,
833	>	BiConsumer<? super T,? super U> a) {
834	>	return f.thenAcceptBothAsync(g, a, new ThreadExecutor());
835	>	}
836	>	public <T,U,V> CompletableFuture<V> thenCombine
837	>	(CompletableFuture<T> f,
838	>	CompletionStage<? extends U> g,
839	>	BiFunction<? super T,? super U,? extends V> a) {
840	>	return f.thenCombineAsync(g, a, new ThreadExecutor());
841	>	}
842	>	public <T> CompletableFuture<Void> runAfterEither
843	>	(CompletableFuture<T> f,
844	>	CompletionStage<?> g,
845	>	java.lang.Runnable a) {
846	>	return f.runAfterEitherAsync(g, a, new ThreadExecutor());
847	>	}
848	>	public <T> CompletableFuture<Void> acceptEither
849	>	(CompletableFuture<T> f,
850	>	CompletionStage<? extends T> g,
851	>	Consumer<? super T> a) {
852	>	return f.acceptEitherAsync(g, a, new ThreadExecutor());
853	>	}
854	>	public <T,U> CompletableFuture<U> applyToEither
855	>	(CompletableFuture<T> f,
856	>	CompletionStage<? extends T> g,
857	>	Function<? super T,U> a) {
858	>	return f.applyToEitherAsync(g, a, new ThreadExecutor());
859	>	}
860	>	public <T> CompletableFuture<T> exceptionally
861	>	(CompletableFuture<T> f,
862	>	Function<Throwable, ? extends T> fn) {
863	>	return f.exceptionallyAsync(fn, new ThreadExecutor());
864	>	}
865	>	public <T> CompletableFuture<T> exceptionallyCompose
866	>	(CompletableFuture<T> f, Function<Throwable, ? extends CompletionStage<T>> fn) {
867	>	return f.exceptionallyComposeAsync(fn, new ThreadExecutor());
868	>	}
869
870	<	/**
1072	<	* applyToEither result completes exceptionally if action does
1073	<	*/
1074	<	public void testApplyToEither3() {
1075	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1076	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1077	<	FailingFunction r = new FailingFunction();
1078	<	CompletableFuture<Integer> g = f.applyToEither(f2, r);
1079	<	f2.complete(two);
1080	<	checkCompletedWithWrappedCFException(g);
1081	<	}
870	>	};
871
872	<	/**
873	<	* applyToEither result completes exceptionally if either source cancelled
874	<	*/
875	<	public void testApplyToEither4() {
876	<	CompletableFuture<Integer> f = new CompletableFuture<>();
877	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
878	<	CompletableFuture<Integer> g = f.applyToEither(f2, inc);
879	<	assertTrue(f.cancel(true));
880	<	checkCompletedWithWrappedCancellationException(g);
881	<	f = new CompletableFuture<>();
882	<	f2 = new CompletableFuture<>();
883	<	assertTrue(f2.cancel(true));
884	<	checkCompletedWithWrappedCancellationException(g);
885	<	}
872	>	public abstract void checkExecutionMode();
873	>	public abstract CompletableFuture<Void> runAsync(Runnable a);
874	>	public abstract <U> CompletableFuture<U> supplyAsync(Supplier<U> a);
875	>	public abstract <T> CompletableFuture<Void> thenRun
876	>	(CompletableFuture<T> f, Runnable a);
877	>	public abstract <T> CompletableFuture<Void> thenAccept
878	>	(CompletableFuture<T> f, Consumer<? super T> a);
879	>	public abstract <T,U> CompletableFuture<U> thenApply
880	>	(CompletableFuture<T> f, Function<? super T,U> a);
881	>	public abstract <T,U> CompletableFuture<U> thenCompose
882	>	(CompletableFuture<T> f,
883	>	Function<? super T,? extends CompletionStage<U>> a);
884	>	public abstract <T,U> CompletableFuture<U> handle
885	>	(CompletableFuture<T> f,
886	>	BiFunction<? super T,Throwable,? extends U> a);
887	>	public abstract <T> CompletableFuture<T> whenComplete
888	>	(CompletableFuture<T> f,
889	>	BiConsumer<? super T,? super Throwable> a);
890	>	public abstract <T,U> CompletableFuture<Void> runAfterBoth
891	>	(CompletableFuture<T> f, CompletableFuture<U> g, Runnable a);
892	>	public abstract <T,U> CompletableFuture<Void> thenAcceptBoth
893	>	(CompletableFuture<T> f,
894	>	CompletionStage<? extends U> g,
895	>	BiConsumer<? super T,? super U> a);
896	>	public abstract <T,U,V> CompletableFuture<V> thenCombine
897	>	(CompletableFuture<T> f,
898	>	CompletionStage<? extends U> g,
899	>	BiFunction<? super T,? super U,? extends V> a);
900	>	public abstract <T> CompletableFuture<Void> runAfterEither
901	>	(CompletableFuture<T> f,
902	>	CompletionStage<?> g,
903	>	java.lang.Runnable a);
904	>	public abstract <T> CompletableFuture<Void> acceptEither
905	>	(CompletableFuture<T> f,
906	>	CompletionStage<? extends T> g,
907	>	Consumer<? super T> a);
908	>	public abstract <T,U> CompletableFuture<U> applyToEither
909	>	(CompletableFuture<T> f,
910	>	CompletionStage<? extends T> g,
911	>	Function<? super T,U> a);
912	>	public abstract <T> CompletableFuture<T> exceptionally
913	>	(CompletableFuture<T> f,
914	>	Function<Throwable, ? extends T> fn);
915	>	public abstract <T> CompletableFuture<T> exceptionallyCompose
916	>	(CompletableFuture<T> f,
917	>	Function<Throwable, ? extends CompletionStage<T>> fn);
918	>	}
919	>
920	>	/**
921	>	* exceptionally action is not invoked when source completes
922	>	* normally, and source result is propagated
923	>	*/
924	>	public void testExceptionally_normalCompletion() {
925	>	for (ExecutionMode m : ExecutionMode.values())
926	>	for (boolean createIncomplete : new boolean[] { true, false })
927	>	for (Integer v1 : new Integer[] { 1, null })
928	>	{
929	>	final AtomicInteger a = new AtomicInteger(0);
930	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
931	>	if (!createIncomplete) assertTrue(f.complete(v1));
932	>	final CompletableFuture<Integer> g = m.exceptionally
933	>	(f, (Throwable t) -> {
934	>	a.getAndIncrement();
935	>	threadFail("should not be called");
936	>	return null;            // unreached
937	>	});
938	>	if (createIncomplete) assertTrue(f.complete(v1));
939	>
940	>	checkCompletedNormally(g, v1);
941	>	checkCompletedNormally(f, v1);
942	>	assertEquals(0, a.get());
943	>	}}
944
945		/**
946	<	* acceptEither result completes normally after normal completion
947	<	* of either source
946	>	* exceptionally action completes with function value on source
947	>	* exception
948		*/
949	<	public void testAcceptEither() {
950	<	CompletableFuture<Integer> f = new CompletableFuture<>();
951	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
952	<	IncAction r = new IncAction();
953	<	CompletableFuture<Void> g = f.acceptEither(f2, r);
954	<	f.complete(one);
955	<	checkCompletedNormally(g, null);
956	<	f2.complete(one);
957	<	checkCompletedNormally(g, null);
958	<	assertEquals(r.value, 2);
959	<
960	<	r = new IncAction();
961	<	f = new CompletableFuture<>();
962	<	f.complete(one);
963	<	f2 = new CompletableFuture<>();
964	<	g = f.acceptEither(f2, r);
965	<	checkCompletedNormally(g, null);
966	<	assertEquals(r.value, 2);
967	<	}
949	>	public void testExceptionally_exceptionalCompletion() {
950	>	for (ExecutionMode m : ExecutionMode.values())
951	>	for (boolean createIncomplete : new boolean[] { true, false })
952	>	for (Integer v1 : new Integer[] { 1, null })
953	>	{
954	>	final AtomicInteger a = new AtomicInteger(0);
955	>	final CFException ex = new CFException();
956	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
957	>	if (!createIncomplete) f.completeExceptionally(ex);
958	>	final CompletableFuture<Integer> g = m.exceptionally
959	>	(f, (Throwable t) -> {
960	>	m.checkExecutionMode();
961	>	threadAssertSame(t, ex);
962	>	a.getAndIncrement();
963	>	return v1;
964	>	});
965	>	if (createIncomplete) f.completeExceptionally(ex);
966	>
967	>	checkCompletedNormally(g, v1);
968	>	assertEquals(1, a.get());
969	>	}}
970	>
971	>	/**
972	>	* If an "exceptionally action" throws an exception, it completes
973	>	* exceptionally with that exception
974	>	*/
975	>	public void testExceptionally_exceptionalCompletionActionFailed() {
976	>	for (ExecutionMode m : ExecutionMode.values())
977	>	for (boolean createIncomplete : new boolean[] { true, false })
978	>	{
979	>	final AtomicInteger a = new AtomicInteger(0);
980	>	final CFException ex1 = new CFException();
981	>	final CFException ex2 = new CFException();
982	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
983	>	if (!createIncomplete) f.completeExceptionally(ex1);
984	>	final CompletableFuture<Integer> g = m.exceptionally
985	>	(f, (Throwable t) -> {
986	>	m.checkExecutionMode();
987	>	threadAssertSame(t, ex1);
988	>	a.getAndIncrement();
989	>	throw ex2;
990	>	});
991	>	if (createIncomplete) f.completeExceptionally(ex1);
992	>
993	>	checkCompletedWithWrappedException(g, ex2);
994	>	checkCompletedExceptionally(f, ex1);
995	>	assertEquals(1, a.get());
996	>	}}
997
998		/**
999	<	* acceptEither result completes exceptionally after exceptional
1000	<	* completion of either source
999	>	* whenComplete action executes on normal completion, propagating
1000	>	* source result.
1001		*/
1002	<	public void testAcceptEither2() {
1003	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1004	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1005	<	IncAction r = new IncAction();
1006	<	CompletableFuture<Void> g = f.acceptEither(f2, r);
1007	<	f.completeExceptionally(new CFException());
1008	<	f2.complete(one);
1009	<	checkCompletedWithWrappedCFException(g);
1010	<
1011	<	r = new IncAction();
1012	<	f = new CompletableFuture<>();
1013	<	f2 = new CompletableFuture<>();
1014	<	f2.completeExceptionally(new CFException());
1015	<	g = f.acceptEither(f2, r);
1016	<	checkCompletedWithWrappedCFException(g);
1017	<	}
1002	>	public void testWhenComplete_normalCompletion() {
1003	>	for (ExecutionMode m : ExecutionMode.values())
1004	>	for (boolean createIncomplete : new boolean[] { true, false })
1005	>	for (Integer v1 : new Integer[] { 1, null })
1006	>	{
1007	>	final AtomicInteger a = new AtomicInteger(0);
1008	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1009	>	if (!createIncomplete) assertTrue(f.complete(v1));
1010	>	final CompletableFuture<Integer> g = m.whenComplete
1011	>	(f,
1012	>	(Integer result, Throwable t) -> {
1013	>	m.checkExecutionMode();
1014	>	threadAssertSame(result, v1);
1015	>	threadAssertNull(t);
1016	>	a.getAndIncrement();
1017	>	});
1018	>	if (createIncomplete) assertTrue(f.complete(v1));
1019	>
1020	>	checkCompletedNormally(g, v1);
1021	>	checkCompletedNormally(f, v1);
1022	>	assertEquals(1, a.get());
1023	>	}}
1024
1025		/**
1026	<	* acceptEither result completes exceptionally if action does
1026	>	* whenComplete action executes on exceptional completion, propagating
1027	>	* source result.
1028		*/
1029	<	public void testAcceptEither3() {
1030	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1031	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1032	<	FailingConsumer r = new FailingConsumer();
1033	<	CompletableFuture<Void> g = f.acceptEither(f2, r);
1034	<	f2.complete(two);
1035	<	checkCompletedWithWrappedCFException(g);
1036	<	}
1029	>	public void testWhenComplete_exceptionalCompletion() {
1030	>	for (ExecutionMode m : ExecutionMode.values())
1031	>	for (boolean createIncomplete : new boolean[] { true, false })
1032	>	{
1033	>	final AtomicInteger a = new AtomicInteger(0);
1034	>	final CFException ex = new CFException();
1035	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1036	>	if (!createIncomplete) f.completeExceptionally(ex);
1037	>	final CompletableFuture<Integer> g = m.whenComplete
1038	>	(f,
1039	>	(Integer result, Throwable t) -> {
1040	>	m.checkExecutionMode();
1041	>	threadAssertNull(result);
1042	>	threadAssertSame(t, ex);
1043	>	a.getAndIncrement();
1044	>	});
1045	>	if (createIncomplete) f.completeExceptionally(ex);
1046	>
1047	>	checkCompletedWithWrappedException(g, ex);
1048	>	checkCompletedExceptionally(f, ex);
1049	>	assertEquals(1, a.get());
1050	>	}}
1051	>
1052	>	/**
1053	>	* whenComplete action executes on cancelled source, propagating
1054	>	* CancellationException.
1055	>	*/
1056	>	public void testWhenComplete_sourceCancelled() {
1057	>	for (ExecutionMode m : ExecutionMode.values())
1058	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1059	>	for (boolean createIncomplete : new boolean[] { true, false })
1060	>	{
1061	>	final AtomicInteger a = new AtomicInteger(0);
1062	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1063	>	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1064	>	final CompletableFuture<Integer> g = m.whenComplete
1065	>	(f,
1066	>	(Integer result, Throwable t) -> {
1067	>	m.checkExecutionMode();
1068	>	threadAssertNull(result);
1069	>	threadAssertTrue(t instanceof CancellationException);
1070	>	a.getAndIncrement();
1071	>	});
1072	>	if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1073
1155	–	/**
1156	–	* acceptEither result completes exceptionally if either source cancelled
1157	–	*/
1158	–	public void testAcceptEither4() {
1159	–	CompletableFuture<Integer> f = new CompletableFuture<>();
1160	–	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1161	–	IncAction r = new IncAction();
1162	–	CompletableFuture<Void> g = f.acceptEither(f2, r);
1163	–	assertTrue(f.cancel(true));
1164	–	checkCompletedWithWrappedCancellationException(g);
1165	–	f = new CompletableFuture<>();
1166	–	f2 = new CompletableFuture<>();
1167	–	assertTrue(f2.cancel(true));
1074		checkCompletedWithWrappedCancellationException(g);
1075	<	}
1076	<
1077	<	/**
1172	<	* runAfterEither result completes normally after normal completion
1173	<	* of either source
1174	<	*/
1175	<	public void testRunAfterEither() {
1176	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1177	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1178	<	Noop r = new Noop();
1179	<	CompletableFuture<Void> g = f.runAfterEither(f2, r);
1180	<	f.complete(one);
1181	<	checkCompletedNormally(g, null);
1182	<	f2.complete(one);
1183	<	checkCompletedNormally(g, null);
1184	<	assertTrue(r.ran);
1185	<
1186	<	r = new Noop();
1187	<	f = new CompletableFuture<>();
1188	<	f.complete(one);
1189	<	f2 = new CompletableFuture<>();
1190	<	g = f.runAfterEither(f2, r);
1191	<	checkCompletedNormally(g, null);
1192	<	assertTrue(r.ran);
1193	<	}
1194	<
1195	<	/**
1196	<	* runAfterEither result completes exceptionally after exceptional
1197	<	* completion of either source
1198	<	*/
1199	<	public void testRunAfterEither2() {
1200	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1201	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1202	<	Noop r = new Noop();
1203	<	CompletableFuture<Void> g = f.runAfterEither(f2, r);
1204	<	f.completeExceptionally(new CFException());
1205	<	f2.complete(one);
1206	<	checkCompletedWithWrappedCFException(g);
1207	<
1208	<	r = new Noop();
1209	<	f = new CompletableFuture<>();
1210	<	f2 = new CompletableFuture<>();
1211	<	f2.completeExceptionally(new CFException());
1212	<	g = f.runAfterEither(f2, r);
1213	<	checkCompletedWithWrappedCFException(g);
1214	<	}
1215	<
1216	<	/**
1217	<	* runAfterEither result completes exceptionally if action does
1218	<	*/
1219	<	public void testRunAfterEither3() {
1220	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1221	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1222	<	FailingNoop r = new FailingNoop();
1223	<	CompletableFuture<Void> g = f.runAfterEither(f2, r);
1224	<	f2.complete(two);
1225	<	checkCompletedWithWrappedCFException(g);
1226	<	}
1075	>	checkCancelled(f);
1076	>	assertEquals(1, a.get());
1077	>	}}
1078
1079		/**
1080	<	* runAfterEither result completes exceptionally if either source cancelled
1080	>	* If a whenComplete action throws an exception when triggered by
1081	>	* a normal completion, it completes exceptionally
1082		*/
1083	<	public void testRunAfterEither4() {
1084	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1085	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1086	<	Noop r = new Noop();
1087	<	CompletableFuture<Void> g = f.runAfterEither(f2, r);
1088	<	assertTrue(f.cancel(true));
1089	<	checkCompletedWithWrappedCancellationException(g);
1090	<	f = new CompletableFuture<>();
1091	<	f2 = new CompletableFuture<>();
1092	<	assertTrue(f2.cancel(true));
1093	<	checkCompletedWithWrappedCancellationException(g);
1094	<	}
1083	>	public void testWhenComplete_sourceCompletedNormallyActionFailed() {
1084	>	for (boolean createIncomplete : new boolean[] { true, false })
1085	>	for (ExecutionMode m : ExecutionMode.values())
1086	>	for (Integer v1 : new Integer[] { 1, null })
1087	>	{
1088	>	final AtomicInteger a = new AtomicInteger(0);
1089	>	final CFException ex = new CFException();
1090	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1091	>	if (!createIncomplete) assertTrue(f.complete(v1));
1092	>	final CompletableFuture<Integer> g = m.whenComplete
1093	>	(f,
1094	>	(Integer result, Throwable t) -> {
1095	>	m.checkExecutionMode();
1096	>	threadAssertSame(result, v1);
1097	>	threadAssertNull(t);
1098	>	a.getAndIncrement();
1099	>	throw ex;
1100	>	});
1101	>	if (createIncomplete) assertTrue(f.complete(v1));
1102	>
1103	>	checkCompletedWithWrappedException(g, ex);
1104	>	checkCompletedNormally(f, v1);
1105	>	assertEquals(1, a.get());
1106	>	}}
1107
1108		/**
1109	<	* thenCompose result completes normally after normal completion of source
1109	>	* If a whenComplete action throws an exception when triggered by
1110	>	* a source completion that also throws an exception, the source
1111	>	* exception takes precedence (unlike handle)
1112		*/
1113	<	public void testThenCompose() {
1114	<	CompletableFuture<Integer> f, g;
1115	<	CompletableFutureInc r;
1116	<
1117	<	f = new CompletableFuture<>();
1118	<	g = f.thenCompose(r = new CompletableFutureInc());
1119	<	f.complete(one);
1120	<	checkCompletedNormally(g, two);
1121	<	assertTrue(r.ran);
1122	<
1123	<	f = new CompletableFuture<>();
1124	<	f.complete(one);
1125	<	g = f.thenCompose(r = new CompletableFutureInc());
1126	<	checkCompletedNormally(g, two);
1127	<	assertTrue(r.ran);
1128	<	}
1113	>	public void testWhenComplete_sourceFailedActionFailed() {
1114	>	for (boolean createIncomplete : new boolean[] { true, false })
1115	>	for (ExecutionMode m : ExecutionMode.values())
1116	>	{
1117	>	final AtomicInteger a = new AtomicInteger(0);
1118	>	final CFException ex1 = new CFException();
1119	>	final CFException ex2 = new CFException();
1120	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1121	>
1122	>	if (!createIncomplete) f.completeExceptionally(ex1);
1123	>	final CompletableFuture<Integer> g = m.whenComplete
1124	>	(f,
1125	>	(Integer result, Throwable t) -> {
1126	>	m.checkExecutionMode();
1127	>	threadAssertSame(t, ex1);
1128	>	threadAssertNull(result);
1129	>	a.getAndIncrement();
1130	>	throw ex2;
1131	>	});
1132	>	if (createIncomplete) f.completeExceptionally(ex1);
1133	>
1134	>	checkCompletedWithWrappedException(g, ex1);
1135	>	checkCompletedExceptionally(f, ex1);
1136	>	if (testImplementationDetails) {
1137	>	assertEquals(1, ex1.getSuppressed().length);
1138	>	assertSame(ex2, ex1.getSuppressed()[0]);
1139	>	}
1140	>	assertEquals(1, a.get());
1141	>	}}
1142
1143		/**
1144	<	* thenCompose result completes exceptionally after exceptional
1144	>	* handle action completes normally with function value on normal
1145		* completion of source
1146		*/
1147	<	public void testThenCompose2() {
1148	<	CompletableFuture<Integer> f, g;
1149	<	CompletableFutureInc r;
1150	<
1151	<	f = new CompletableFuture<>();
1152	<	g = f.thenCompose(r = new CompletableFutureInc());
1153	<	f.completeExceptionally(new CFException());
1154	<	checkCompletedWithWrappedCFException(g);
1155	<
1156	<	f = new CompletableFuture<>();
1157	<	f.completeExceptionally(new CFException());
1158	<	g = f.thenCompose(r = new CompletableFutureInc());
1159	<	checkCompletedWithWrappedCFException(g);
1160	<	}
1147	>	public void testHandle_normalCompletion() {
1148	>	for (ExecutionMode m : ExecutionMode.values())
1149	>	for (boolean createIncomplete : new boolean[] { true, false })
1150	>	for (Integer v1 : new Integer[] { 1, null })
1151	>	{
1152	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1153	>	final AtomicInteger a = new AtomicInteger(0);
1154	>	if (!createIncomplete) assertTrue(f.complete(v1));
1155	>	final CompletableFuture<Integer> g = m.handle
1156	>	(f,
1157	>	(Integer result, Throwable t) -> {
1158	>	m.checkExecutionMode();
1159	>	threadAssertSame(result, v1);
1160	>	threadAssertNull(t);
1161	>	a.getAndIncrement();
1162	>	return inc(v1);
1163	>	});
1164	>	if (createIncomplete) assertTrue(f.complete(v1));
1165	>
1166	>	checkCompletedNormally(g, inc(v1));
1167	>	checkCompletedNormally(f, v1);
1168	>	assertEquals(1, a.get());
1169	>	}}
1170
1171		/**
1172	<	* thenCompose result completes exceptionally if action does
1172	>	* handle action completes normally with function value on
1173	>	* exceptional completion of source
1174		*/
1175	<	public void testThenCompose3() {
1176	<	CompletableFuture<Integer> f, g;
1177	<	FailingCompletableFutureFunction r;
1175	>	public void testHandle_exceptionalCompletion() {
1176	>	for (ExecutionMode m : ExecutionMode.values())
1177	>	for (boolean createIncomplete : new boolean[] { true, false })
1178	>	for (Integer v1 : new Integer[] { 1, null })
1179	>	{
1180	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1181	>	final AtomicInteger a = new AtomicInteger(0);
1182	>	final CFException ex = new CFException();
1183	>	if (!createIncomplete) f.completeExceptionally(ex);
1184	>	final CompletableFuture<Integer> g = m.handle
1185	>	(f,
1186	>	(Integer result, Throwable t) -> {
1187	>	m.checkExecutionMode();
1188	>	threadAssertNull(result);
1189	>	threadAssertSame(t, ex);
1190	>	a.getAndIncrement();
1191	>	return v1;
1192	>	});
1193	>	if (createIncomplete) f.completeExceptionally(ex);
1194	>
1195	>	checkCompletedNormally(g, v1);
1196	>	checkCompletedExceptionally(f, ex);
1197	>	assertEquals(1, a.get());
1198	>	}}
1199	>
1200	>	/**
1201	>	* handle action completes normally with function value on
1202	>	* cancelled source
1203	>	*/
1204	>	public void testHandle_sourceCancelled() {
1205	>	for (ExecutionMode m : ExecutionMode.values())
1206	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1207	>	for (boolean createIncomplete : new boolean[] { true, false })
1208	>	for (Integer v1 : new Integer[] { 1, null })
1209	>	{
1210	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1211	>	final AtomicInteger a = new AtomicInteger(0);
1212	>	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1213	>	final CompletableFuture<Integer> g = m.handle
1214	>	(f,
1215	>	(Integer result, Throwable t) -> {
1216	>	m.checkExecutionMode();
1217	>	threadAssertNull(result);
1218	>	threadAssertTrue(t instanceof CancellationException);
1219	>	a.getAndIncrement();
1220	>	return v1;
1221	>	});
1222	>	if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1223
1224	<	f = new CompletableFuture<>();
1225	<	g = f.thenCompose(r = new FailingCompletableFutureFunction());
1226	<	f.complete(one);
1227	<	checkCompletedWithWrappedCFException(g);
1294	<
1295	<	f = new CompletableFuture<>();
1296	<	f.complete(one);
1297	<	g = f.thenCompose(r = new FailingCompletableFutureFunction());
1298	<	checkCompletedWithWrappedCFException(g);
1299	<	}
1224	>	checkCompletedNormally(g, v1);
1225	>	checkCancelled(f);
1226	>	assertEquals(1, a.get());
1227	>	}}
1228
1229		/**
1230	<	* thenCompose result completes exceptionally if source cancelled
1230	>	* If a "handle action" throws an exception when triggered by
1231	>	* a normal completion, it completes exceptionally
1232		*/
1233	<	public void testThenCompose4() {
1234	<	CompletableFuture<Integer> f, g;
1235	<	CompletableFutureInc r;
1236	<
1237	<	f = new CompletableFuture<>();
1238	<	g = f.thenCompose(r = new CompletableFutureInc());
1239	<	assertTrue(f.cancel(true));
1240	<	checkCompletedWithWrappedCancellationException(g);
1241	<
1242	<	f = new CompletableFuture<>();
1243	<	assertTrue(f.cancel(true));
1244	<	g = f.thenCompose(r = new CompletableFutureInc());
1245	<	checkCompletedWithWrappedCancellationException(g);
1246	<	}
1247	<
1248	<	// asyncs
1233	>	public void testHandle_sourceCompletedNormallyActionFailed() {
1234	>	for (ExecutionMode m : ExecutionMode.values())
1235	>	for (boolean createIncomplete : new boolean[] { true, false })
1236	>	for (Integer v1 : new Integer[] { 1, null })
1237	>	{
1238	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1239	>	final AtomicInteger a = new AtomicInteger(0);
1240	>	final CFException ex = new CFException();
1241	>	if (!createIncomplete) assertTrue(f.complete(v1));
1242	>	final CompletableFuture<Integer> g = m.handle
1243	>	(f,
1244	>	(Integer result, Throwable t) -> {
1245	>	m.checkExecutionMode();
1246	>	threadAssertSame(result, v1);
1247	>	threadAssertNull(t);
1248	>	a.getAndIncrement();
1249	>	throw ex;
1250	>	});
1251	>	if (createIncomplete) assertTrue(f.complete(v1));
1252	>
1253	>	checkCompletedWithWrappedException(g, ex);
1254	>	checkCompletedNormally(f, v1);
1255	>	assertEquals(1, a.get());
1256	>	}}
1257	>
1258	>	/**
1259	>	* If a "handle action" throws an exception when triggered by
1260	>	* a source completion that also throws an exception, the action
1261	>	* exception takes precedence (unlike whenComplete)
1262	>	*/
1263	>	public void testHandle_sourceFailedActionFailed() {
1264	>	for (boolean createIncomplete : new boolean[] { true, false })
1265	>	for (ExecutionMode m : ExecutionMode.values())
1266	>	{
1267	>	final AtomicInteger a = new AtomicInteger(0);
1268	>	final CFException ex1 = new CFException();
1269	>	final CFException ex2 = new CFException();
1270	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1271	>
1272	>	if (!createIncomplete) f.completeExceptionally(ex1);
1273	>	final CompletableFuture<Integer> g = m.handle
1274	>	(f,
1275	>	(Integer result, Throwable t) -> {
1276	>	m.checkExecutionMode();
1277	>	threadAssertNull(result);
1278	>	threadAssertSame(ex1, t);
1279	>	a.getAndIncrement();
1280	>	throw ex2;
1281	>	});
1282	>	if (createIncomplete) f.completeExceptionally(ex1);
1283	>
1284	>	checkCompletedWithWrappedException(g, ex2);
1285	>	checkCompletedExceptionally(f, ex1);
1286	>	assertEquals(1, a.get());
1287	>	}}
1288
1289		/**
1290	<	* thenRunAsync result completes normally after normal completion of source
1290	>	* runAsync completes after running Runnable
1291		*/
1292	<	public void testThenRunAsync() {
1293	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1294	<	Noop r = new Noop();
1295	<	CompletableFuture<Void> g = f.thenRunAsync(r);
1296	<	f.complete(null);
1297	<	checkCompletedNormally(g, null);
1298	<
1299	<	// reordered version
1300	<	f = new CompletableFuture<>();
1301	<	f.complete(null);
1302	<	r = new Noop();
1303	<	g = f.thenRunAsync(r);
1304	<	checkCompletedNormally(g, null);
1337	<	}
1292	>	public void testRunAsync_normalCompletion() {
1293	>	ExecutionMode[] executionModes = {
1294	>	ExecutionMode.ASYNC,
1295	>	ExecutionMode.EXECUTOR,
1296	>	};
1297	>	for (ExecutionMode m : executionModes)
1298	>	{
1299	>	final Noop r = new Noop(m);
1300	>	final CompletableFuture<Void> f = m.runAsync(r);
1301	>	assertNull(f.join());
1302	>	checkCompletedNormally(f, null);
1303	>	r.assertInvoked();
1304	>	}}
1305
1306		/**
1307	<	* thenRunAsync result completes exceptionally after exceptional
1341	<	* completion of source
1307	>	* failing runAsync completes exceptionally after running Runnable
1308		*/
1309	<	public void testThenRunAsync2() {
1310	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1311	<	Noop r = new Noop();
1312	<	CompletableFuture<Void> g = f.thenRunAsync(r);
1313	<	f.completeExceptionally(new CFException());
1309	>	public void testRunAsync_exceptionalCompletion() {
1310	>	ExecutionMode[] executionModes = {
1311	>	ExecutionMode.ASYNC,
1312	>	ExecutionMode.EXECUTOR,
1313	>	};
1314	>	for (ExecutionMode m : executionModes)
1315	>	{
1316	>	final FailingRunnable r = new FailingRunnable(m);
1317	>	final CompletableFuture<Void> f = m.runAsync(r);
1318	>	checkCompletedWithWrappedException(f, r.ex);
1319	>	r.assertInvoked();
1320	>	}}
1321	>
1322	>	@SuppressWarnings("FutureReturnValueIgnored")
1323	>	public void testRunAsync_rejectingExecutor() {
1324	>	CountingRejectingExecutor e = new CountingRejectingExecutor();
1325		try {
1326	<	g.join();
1326	>	CompletableFuture.runAsync(() -> {}, e);
1327		shouldThrow();
1328	<	} catch (CompletionException success) {}
1329	<	checkCompletedWithWrappedCFException(g);
1330	<	}
1354	<
1355	<	/**
1356	<	* thenRunAsync result completes exceptionally if action does
1357	<	*/
1358	<	public void testThenRunAsync3() {
1359	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1360	<	FailingNoop r = new FailingNoop();
1361	<	CompletableFuture<Void> g = f.thenRunAsync(r);
1362	<	f.complete(null);
1363	<	checkCompletedWithWrappedCFException(g);
1364	<	}
1328	>	} catch (Throwable t) {
1329	>	assertSame(e.ex, t);
1330	>	}
1331
1332	<	/**
1367	<	* thenRunAsync result completes exceptionally if source cancelled
1368	<	*/
1369	<	public void testThenRunAsync4() {
1370	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1371	<	Noop r = new Noop();
1372	<	CompletableFuture<Void> g = f.thenRunAsync(r);
1373	<	assertTrue(f.cancel(true));
1374	<	checkCompletedWithWrappedCancellationException(g);
1332	>	assertEquals(1, e.count.get());
1333		}
1334
1335		/**
1336	<	* thenApplyAsync result completes normally after normal completion of source
1336	>	* supplyAsync completes with result of supplier
1337		*/
1338	<	public void testThenApplyAsync() {
1339	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1340	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc);
1341	<	f.complete(one);
1342	<	checkCompletedNormally(g, two);
1343	<	}
1338	>	public void testSupplyAsync_normalCompletion() {
1339	>	ExecutionMode[] executionModes = {
1340	>	ExecutionMode.ASYNC,
1341	>	ExecutionMode.EXECUTOR,
1342	>	};
1343	>	for (ExecutionMode m : executionModes)
1344	>	for (Integer v1 : new Integer[] { 1, null })
1345	>	{
1346	>	final IntegerSupplier r = new IntegerSupplier(m, v1);
1347	>	final CompletableFuture<Integer> f = m.supplyAsync(r);
1348	>	assertSame(v1, f.join());
1349	>	checkCompletedNormally(f, v1);
1350	>	r.assertInvoked();
1351	>	}}
1352
1353		/**
1354	<	* thenApplyAsync result completes exceptionally after exceptional
1389	<	* completion of source
1354	>	* Failing supplyAsync completes exceptionally
1355		*/
1356	<	public void testThenApplyAsync2() {
1357	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1358	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc);
1359	<	f.completeExceptionally(new CFException());
1360	<	checkCompletedWithWrappedCFException(g);
1361	<	}
1356	>	public void testSupplyAsync_exceptionalCompletion() {
1357	>	ExecutionMode[] executionModes = {
1358	>	ExecutionMode.ASYNC,
1359	>	ExecutionMode.EXECUTOR,
1360	>	};
1361	>	for (ExecutionMode m : executionModes)
1362	>	{
1363	>	FailingSupplier r = new FailingSupplier(m);
1364	>	CompletableFuture<Integer> f = m.supplyAsync(r);
1365	>	checkCompletedWithWrappedException(f, r.ex);
1366	>	r.assertInvoked();
1367	>	}}
1368	>
1369	>	@SuppressWarnings("FutureReturnValueIgnored")
1370	>	public void testSupplyAsync_rejectingExecutor() {
1371	>	CountingRejectingExecutor e = new CountingRejectingExecutor();
1372	>	try {
1373	>	CompletableFuture.supplyAsync(() -> null, e);
1374	>	shouldThrow();
1375	>	} catch (Throwable t) {
1376	>	assertSame(e.ex, t);
1377	>	}
1378
1379	<	/**
1399	<	* thenApplyAsync result completes exceptionally if action does
1400	<	*/
1401	<	public void testThenApplyAsync3() {
1402	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1403	<	FailingFunction r = new FailingFunction();
1404	<	CompletableFuture<Integer> g = f.thenApplyAsync(r);
1405	<	f.complete(null);
1406	<	checkCompletedWithWrappedCFException(g);
1379	>	assertEquals(1, e.count.get());
1380		}
1381
1382	<	/**
1410	<	* thenApplyAsync result completes exceptionally if source cancelled
1411	<	*/
1412	<	public void testThenApplyAsync4() {
1413	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1414	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc);
1415	<	assertTrue(f.cancel(true));
1416	<	checkCompletedWithWrappedCancellationException(g);
1417	<	}
1382	>	// seq completion methods
1383
1384		/**
1385	<	* thenAcceptAsync result completes normally after normal
1421	<	* completion of source
1385	>	* thenRun result completes normally after normal completion of source
1386		*/
1387	<	public void testThenAcceptAsync() {
1388	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1389	<	IncAction r = new IncAction();
1390	<	CompletableFuture<Void> g = f.thenAcceptAsync(r);
1391	<	f.complete(one);
1392	<	checkCompletedNormally(g, null);
1393	<	assertEquals(r.value, 2);
1394	<	}
1387	>	public void testThenRun_normalCompletion() {
1388	>	for (ExecutionMode m : ExecutionMode.values())
1389	>	for (Integer v1 : new Integer[] { 1, null })
1390	>	{
1391	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1392	>	final Noop[] rs = new Noop[6];
1393	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1394	>
1395	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1396	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1397	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1398	>	checkIncomplete(h0);
1399	>	checkIncomplete(h1);
1400	>	checkIncomplete(h2);
1401	>	assertTrue(f.complete(v1));
1402	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1403	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1404	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1405	>
1406	>	checkCompletedNormally(h0, null);
1407	>	checkCompletedNormally(h1, null);
1408	>	checkCompletedNormally(h2, null);
1409	>	checkCompletedNormally(h3, null);
1410	>	checkCompletedNormally(h4, null);
1411	>	checkCompletedNormally(h5, null);
1412	>	checkCompletedNormally(f, v1);
1413	>	for (Noop r : rs) r.assertInvoked();
1414	>	}}
1415
1416		/**
1417	<	* thenAcceptAsync result completes exceptionally after exceptional
1417	>	* thenRun result completes exceptionally after exceptional
1418		* completion of source
1419		*/
1420	<	public void testThenAcceptAsync2() {
1421	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1422	<	IncAction r = new IncAction();
1423	<	CompletableFuture<Void> g = f.thenAcceptAsync(r);
1424	<	f.completeExceptionally(new CFException());
1425	<	checkCompletedWithWrappedCFException(g);
1426	<	}
1427	<
1428	<	/**
1429	<	* thenAcceptAsync result completes exceptionally if action does
1430	<	*/
1431	<	public void testThenAcceptAsync3() {
1432	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1433	<	FailingConsumer r = new FailingConsumer();
1434	<	CompletableFuture<Void> g = f.thenAcceptAsync(r);
1435	<	f.complete(null);
1436	<	checkCompletedWithWrappedCFException(g);
1437	<	}
1438	<
1439	<	/**
1440	<	* thenAcceptAsync result completes exceptionally if source cancelled
1441	<	*/
1442	<	public void testThenAcceptAsync4() {
1443	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1444	<	IncAction r = new IncAction();
1445	<	CompletableFuture<Void> g = f.thenAcceptAsync(r);
1446	<	assertTrue(f.cancel(true));
1447	<	checkCompletedWithWrappedCancellationException(g);
1464	<	}
1465	<
1466	<	/**
1467	<	* thenCombineAsync result completes normally after normal
1468	<	* completion of sources
1469	<	*/
1470	<	public void testThenCombineAsync() {
1471	<	CompletableFuture<Integer> f, g, h;
1472	<
1473	<	f = new CompletableFuture<>();
1474	<	g = new CompletableFuture<>();
1475	<	h = f.thenCombineAsync(g, subtract);
1476	<	f.complete(3);
1477	<	checkIncomplete(h);
1478	<	g.complete(1);
1479	<	checkCompletedNormally(h, 2);
1480	<
1481	<	f = new CompletableFuture<>();
1482	<	g = new CompletableFuture<>();
1483	<	h = f.thenCombineAsync(g, subtract);
1484	<	g.complete(1);
1485	<	checkIncomplete(h);
1486	<	f.complete(3);
1487	<	checkCompletedNormally(h, 2);
1488	<
1489	<	f = new CompletableFuture<>();
1490	<	g = new CompletableFuture<>();
1491	<	g.complete(1);
1492	<	f.complete(3);
1493	<	h = f.thenCombineAsync(g, subtract);
1494	<	checkCompletedNormally(h, 2);
1495	<	}
1496	<
1497	<	/**
1498	<	* thenCombineAsync result completes exceptionally after exceptional
1499	<	* completion of either source
1500	<	*/
1501	<	public void testThenCombineAsync2() {
1502	<	CompletableFuture<Integer> f, g, h;
1503	<
1504	<	f = new CompletableFuture<>();
1505	<	g = new CompletableFuture<>();
1506	<	h = f.thenCombineAsync(g, subtract);
1507	<	f.completeExceptionally(new CFException());
1508	<	checkIncomplete(h);
1509	<	g.complete(1);
1510	<	checkCompletedWithWrappedCFException(h);
1511	<
1512	<	f = new CompletableFuture<>();
1513	<	g = new CompletableFuture<>();
1514	<	h = f.thenCombineAsync(g, subtract);
1515	<	g.completeExceptionally(new CFException());
1516	<	checkIncomplete(h);
1517	<	f.complete(3);
1518	<	checkCompletedWithWrappedCFException(h);
1519	<
1520	<	f = new CompletableFuture<>();
1521	<	g = new CompletableFuture<>();
1522	<	g.completeExceptionally(new CFException());
1523	<	f.complete(3);
1524	<	h = f.thenCombineAsync(g, subtract);
1525	<	checkCompletedWithWrappedCFException(h);
1526	<	}
1420	>	public void testThenRun_exceptionalCompletion() {
1421	>	for (ExecutionMode m : ExecutionMode.values())
1422	>	{
1423	>	final CFException ex = new CFException();
1424	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1425	>	final Noop[] rs = new Noop[6];
1426	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1427	>
1428	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1429	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1430	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1431	>	checkIncomplete(h0);
1432	>	checkIncomplete(h1);
1433	>	checkIncomplete(h2);
1434	>	assertTrue(f.completeExceptionally(ex));
1435	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1436	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1437	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1438	>
1439	>	checkCompletedWithWrappedException(h0, ex);
1440	>	checkCompletedWithWrappedException(h1, ex);
1441	>	checkCompletedWithWrappedException(h2, ex);
1442	>	checkCompletedWithWrappedException(h3, ex);
1443	>	checkCompletedWithWrappedException(h4, ex);
1444	>	checkCompletedWithWrappedException(h5, ex);
1445	>	checkCompletedExceptionally(f, ex);
1446	>	for (Noop r : rs) r.assertNotInvoked();
1447	>	}}
1448
1449		/**
1450	<	* thenCombineAsync result completes exceptionally if action does
1450	>	* thenRun result completes exceptionally if source cancelled
1451		*/
1452	<	public void testThenCombineAsync3() {
1453	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1454	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1455	<	FailingBiFunction r = new FailingBiFunction();
1456	<	CompletableFuture<Integer> g = f.thenCombineAsync(f2, r);
1457	<	f.complete(one);
1458	<	checkIncomplete(g);
1459	<	assertFalse(r.ran);
1460	<	f2.complete(two);
1461	<	checkCompletedWithWrappedCFException(g);
1462	<	assertTrue(r.ran);
1463	<	}
1452	>	public void testThenRun_sourceCancelled() {
1453	>	for (ExecutionMode m : ExecutionMode.values())
1454	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1455	>	{
1456	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1457	>	final Noop[] rs = new Noop[6];
1458	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1459	>
1460	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1461	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1462	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1463	>	checkIncomplete(h0);
1464	>	checkIncomplete(h1);
1465	>	checkIncomplete(h2);
1466	>	assertTrue(f.cancel(mayInterruptIfRunning));
1467	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1468	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1469	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1470	>
1471	>	checkCompletedWithWrappedCancellationException(h0);
1472	>	checkCompletedWithWrappedCancellationException(h1);
1473	>	checkCompletedWithWrappedCancellationException(h2);
1474	>	checkCompletedWithWrappedCancellationException(h3);
1475	>	checkCompletedWithWrappedCancellationException(h4);
1476	>	checkCompletedWithWrappedCancellationException(h5);
1477	>	checkCancelled(f);
1478	>	for (Noop r : rs) r.assertNotInvoked();
1479	>	}}
1480
1481		/**
1482	<	* thenCombineAsync result completes exceptionally if either source cancelled
1482	>	* thenRun result completes exceptionally if action does
1483		*/
1484	<	public void testThenCombineAsync4() {
1485	<	CompletableFuture<Integer> f, g, h;
1486	<
1487	<	f = new CompletableFuture<>();
1488	<	g = new CompletableFuture<>();
1489	<	h = f.thenCombineAsync(g, subtract);
1490	<	assertTrue(f.cancel(true));
1491	<	checkIncomplete(h);
1492	<	g.complete(1);
1493	<	checkCompletedWithWrappedCancellationException(h);
1494	<
1495	<	f = new CompletableFuture<>();
1496	<	g = new CompletableFuture<>();
1497	<	h = f.thenCombineAsync(g, subtract);
1498	<	assertTrue(g.cancel(true));
1499	<	checkIncomplete(h);
1500	<	f.complete(3);
1501	<	checkCompletedWithWrappedCancellationException(h);
1502	<
1503	<	f = new CompletableFuture<>();
1504	<	g = new CompletableFuture<>();
1505	<	g.complete(3);
1506	<	assertTrue(f.cancel(true));
1507	<	h = f.thenCombineAsync(g, subtract);
1571	<	checkCompletedWithWrappedCancellationException(h);
1572	<
1573	<	f = new CompletableFuture<>();
1574	<	g = new CompletableFuture<>();
1575	<	f.complete(3);
1576	<	assertTrue(g.cancel(true));
1577	<	h = f.thenCombineAsync(g, subtract);
1578	<	checkCompletedWithWrappedCancellationException(h);
1579	<	}
1484	>	public void testThenRun_actionFailed() {
1485	>	for (ExecutionMode m : ExecutionMode.values())
1486	>	for (Integer v1 : new Integer[] { 1, null })
1487	>	{
1488	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1489	>	final FailingRunnable[] rs = new FailingRunnable[6];
1490	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingRunnable(m);
1491	>
1492	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1493	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1494	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1495	>	assertTrue(f.complete(v1));
1496	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1497	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1498	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1499	>
1500	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1501	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1502	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1503	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1504	>	checkCompletedWithWrappedException(h4, rs[4].ex);
1505	>	checkCompletedWithWrappedException(h5, rs[5].ex);
1506	>	checkCompletedNormally(f, v1);
1507	>	}}
1508
1509		/**
1510	<	* thenAcceptBothAsync result completes normally after normal
1583	<	* completion of sources
1510	>	* thenApply result completes normally after normal completion of source
1511		*/
1512	<	public void testThenAcceptBothAsync() {
1513	<	CompletableFuture<Integer> f, g;
1514	<	CompletableFuture<Void> h;
1515	<	SubtractAction r;
1516	<
1517	<	f = new CompletableFuture<>();
1518	<	g = new CompletableFuture<>();
1519	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1520	<	f.complete(3);
1521	<	checkIncomplete(h);
1522	<	g.complete(1);
1523	<	checkCompletedNormally(h, null);
1524	<	assertEquals(r.value, 2);
1525	<
1526	<	f = new CompletableFuture<>();
1527	<	g = new CompletableFuture<>();
1528	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1529	<	g.complete(1);
1530	<	checkIncomplete(h);
1531	<	f.complete(3);
1532	<	checkCompletedNormally(h, null);
1533	<	assertEquals(r.value, 2);
1534	<
1608	<	f = new CompletableFuture<>();
1609	<	g = new CompletableFuture<>();
1610	<	g.complete(1);
1611	<	f.complete(3);
1612	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1613	<	checkCompletedNormally(h, null);
1614	<	assertEquals(r.value, 2);
1615	<	}
1512	>	public void testThenApply_normalCompletion() {
1513	>	for (ExecutionMode m : ExecutionMode.values())
1514	>	for (Integer v1 : new Integer[] { 1, null })
1515	>	{
1516	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1517	>	final IncFunction[] rs = new IncFunction[4];
1518	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1519	>
1520	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1521	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1522	>	checkIncomplete(h0);
1523	>	checkIncomplete(h1);
1524	>	assertTrue(f.complete(v1));
1525	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1526	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1527	>
1528	>	checkCompletedNormally(h0, inc(v1));
1529	>	checkCompletedNormally(h1, inc(v1));
1530	>	checkCompletedNormally(h2, inc(v1));
1531	>	checkCompletedNormally(h3, inc(v1));
1532	>	checkCompletedNormally(f, v1);
1533	>	for (IncFunction r : rs) r.assertValue(inc(v1));
1534	>	}}
1535
1536		/**
1537	<	* thenAcceptBothAsync result completes exceptionally after exceptional
1537	>	* thenApply result completes exceptionally after exceptional
1538		* completion of source
1539		*/
1540	<	public void testThenAcceptBothAsync2() {
1541	<	CompletableFuture<Integer> f, g;
1542	<	CompletableFuture<Void> h;
1543	<	SubtractAction r;
1544	<
1545	<	f = new CompletableFuture<>();
1546	<	g = new CompletableFuture<>();
1547	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1548	<	f.completeExceptionally(new CFException());
1549	<	checkIncomplete(h);
1550	<	g.complete(1);
1551	<	checkCompletedWithWrappedCFException(h);
1552	<
1553	<	f = new CompletableFuture<>();
1554	<	g = new CompletableFuture<>();
1555	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1556	<	g.completeExceptionally(new CFException());
1557	<	checkIncomplete(h);
1558	<	f.complete(3);
1559	<	checkCompletedWithWrappedCFException(h);
1560	<
1642	<	f = new CompletableFuture<>();
1643	<	g = new CompletableFuture<>();
1644	<	f.complete(3);
1645	<	g.completeExceptionally(new CFException());
1646	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1647	<	checkCompletedWithWrappedCFException(h);
1648	<
1649	<	f = new CompletableFuture<>();
1650	<	g = new CompletableFuture<>();
1651	<	f.completeExceptionally(new CFException());
1652	<	g.complete(3);
1653	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1654	<	checkCompletedWithWrappedCFException(h);
1655	<	}
1540	>	public void testThenApply_exceptionalCompletion() {
1541	>	for (ExecutionMode m : ExecutionMode.values())
1542	>	{
1543	>	final CFException ex = new CFException();
1544	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1545	>	final IncFunction[] rs = new IncFunction[4];
1546	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1547	>
1548	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1549	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1550	>	assertTrue(f.completeExceptionally(ex));
1551	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1552	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1553	>
1554	>	checkCompletedWithWrappedException(h0, ex);
1555	>	checkCompletedWithWrappedException(h1, ex);
1556	>	checkCompletedWithWrappedException(h2, ex);
1557	>	checkCompletedWithWrappedException(h3, ex);
1558	>	checkCompletedExceptionally(f, ex);
1559	>	for (IncFunction r : rs) r.assertNotInvoked();
1560	>	}}
1561
1562		/**
1563	<	* thenAcceptBothAsync result completes exceptionally if action does
1563	>	* thenApply result completes exceptionally if source cancelled
1564		*/
1565	<	public void testThenAcceptBothAsync3() {
1566	<	CompletableFuture<Integer> f, g;
1567	<	CompletableFuture<Void> h;
1568	<	FailingBiConsumer r;
1569	<
1570	<	f = new CompletableFuture<>();
1571	<	g = new CompletableFuture<>();
1572	<	h = f.thenAcceptBothAsync(g, r = new FailingBiConsumer());
1573	<	f.complete(3);
1574	<	checkIncomplete(h);
1575	<	g.complete(1);
1576	<	checkCompletedWithWrappedCFException(h);
1577	<
1578	<	f = new CompletableFuture<>();
1579	<	g = new CompletableFuture<>();
1580	<	f.complete(3);
1581	<	g.complete(1);
1582	<	h = f.thenAcceptBothAsync(g, r = new FailingBiConsumer());
1583	<	checkCompletedWithWrappedCFException(h);
1584	<	}
1565	>	public void testThenApply_sourceCancelled() {
1566	>	for (ExecutionMode m : ExecutionMode.values())
1567	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1568	>	{
1569	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1570	>	final IncFunction[] rs = new IncFunction[4];
1571	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1572	>
1573	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1574	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1575	>	assertTrue(f.cancel(mayInterruptIfRunning));
1576	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1577	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1578	>
1579	>	checkCompletedWithWrappedCancellationException(h0);
1580	>	checkCompletedWithWrappedCancellationException(h1);
1581	>	checkCompletedWithWrappedCancellationException(h2);
1582	>	checkCompletedWithWrappedCancellationException(h3);
1583	>	checkCancelled(f);
1584	>	for (IncFunction r : rs) r.assertNotInvoked();
1585	>	}}
1586
1587		/**
1588	<	* thenAcceptBothAsync result completes exceptionally if either source cancelled
1588	>	* thenApply result completes exceptionally if action does
1589		*/
1590	<	public void testThenAcceptBothAsync4() {
1591	<	CompletableFuture<Integer> f, g;
1592	<	CompletableFuture<Void> h;
1593	<	SubtractAction r;
1594	<
1595	<	f = new CompletableFuture<>();
1596	<	g = new CompletableFuture<>();
1597	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1598	<	assertTrue(f.cancel(true));
1599	<	checkIncomplete(h);
1600	<	g.complete(1);
1601	<	checkCompletedWithWrappedCancellationException(h);
1602	<
1603	<	f = new CompletableFuture<>();
1604	<	g = new CompletableFuture<>();
1605	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1606	<	assertTrue(g.cancel(true));
1607	<	checkIncomplete(h);
1608	<	f.complete(3);
1609	<	checkCompletedWithWrappedCancellationException(h);
1704	<
1705	<	f = new CompletableFuture<>();
1706	<	g = new CompletableFuture<>();
1707	<	f.complete(3);
1708	<	assertTrue(g.cancel(true));
1709	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1710	<	checkCompletedWithWrappedCancellationException(h);
1711	<
1712	<	f = new CompletableFuture<>();
1713	<	g = new CompletableFuture<>();
1714	<	assertTrue(f.cancel(true));
1715	<	g.complete(3);
1716	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1717	<	checkCompletedWithWrappedCancellationException(h);
1718	<	}
1590	>	public void testThenApply_actionFailed() {
1591	>	for (ExecutionMode m : ExecutionMode.values())
1592	>	for (Integer v1 : new Integer[] { 1, null })
1593	>	{
1594	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1595	>	final FailingFunction[] rs = new FailingFunction[4];
1596	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingFunction(m);
1597	>
1598	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1599	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1600	>	assertTrue(f.complete(v1));
1601	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1602	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1603	>
1604	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1605	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1606	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1607	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1608	>	checkCompletedNormally(f, v1);
1609	>	}}
1610
1611		/**
1612	<	* runAfterBothAsync result completes normally after normal
1722	<	* completion of sources
1612	>	* thenAccept result completes normally after normal completion of source
1613		*/
1614	<	public void testRunAfterBothAsync() {
1615	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1616	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1617	<	Noop r = new Noop();
1618	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r);
1619	<	f.complete(one);
1620	<	checkIncomplete(g);
1621	<	f2.complete(two);
1622	<	checkCompletedNormally(g, null);
1623	<	assertTrue(r.ran);
1624	<	}
1614	>	public void testThenAccept_normalCompletion() {
1615	>	for (ExecutionMode m : ExecutionMode.values())
1616	>	for (Integer v1 : new Integer[] { 1, null })
1617	>	{
1618	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1619	>	final NoopConsumer[] rs = new NoopConsumer[4];
1620	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1621	>
1622	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1623	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1624	>	checkIncomplete(h0);
1625	>	checkIncomplete(h1);
1626	>	assertTrue(f.complete(v1));
1627	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1628	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1629	>
1630	>	checkCompletedNormally(h0, null);
1631	>	checkCompletedNormally(h1, null);
1632	>	checkCompletedNormally(h2, null);
1633	>	checkCompletedNormally(h3, null);
1634	>	checkCompletedNormally(f, v1);
1635	>	for (NoopConsumer r : rs) r.assertValue(v1);
1636	>	}}
1637
1638		/**
1639	<	* runAfterBothAsync result completes exceptionally after exceptional
1639	>	* thenAccept result completes exceptionally after exceptional
1640		* completion of source
1641		*/
1642	<	public void testRunAfterBothAsync2() {
1643	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1644	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1645	<	Noop r = new Noop();
1646	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r);
1647	<	f.completeExceptionally(new CFException());
1648	<	f2.complete(two);
1649	<	checkCompletedWithWrappedCFException(g);
1650	<
1651	<	r = new Noop();
1652	<	f = new CompletableFuture<>();
1653	<	f2 = new CompletableFuture<>();
1654	<	g = f.runAfterBothAsync(f2, r);
1655	<	f.complete(one);
1656	<	f2.completeExceptionally(new CFException());
1657	<	checkCompletedWithWrappedCFException(g);
1658	<	}
1642	>	public void testThenAccept_exceptionalCompletion() {
1643	>	for (ExecutionMode m : ExecutionMode.values())
1644	>	{
1645	>	final CFException ex = new CFException();
1646	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1647	>	final NoopConsumer[] rs = new NoopConsumer[4];
1648	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1649	>
1650	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1651	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1652	>	assertTrue(f.completeExceptionally(ex));
1653	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1654	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1655	>
1656	>	checkCompletedWithWrappedException(h0, ex);
1657	>	checkCompletedWithWrappedException(h1, ex);
1658	>	checkCompletedWithWrappedException(h2, ex);
1659	>	checkCompletedWithWrappedException(h3, ex);
1660	>	checkCompletedExceptionally(f, ex);
1661	>	for (NoopConsumer r : rs) r.assertNotInvoked();
1662	>	}}
1663
1664		/**
1665	<	* runAfterBothAsync result completes exceptionally if action does
1665	>	* thenAccept result completes exceptionally if source cancelled
1666		*/
1667	<	public void testRunAfterBothAsync3() {
1668	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1669	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1670	<	FailingNoop r = new FailingNoop();
1671	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r);
1672	<	f.complete(one);
1673	<	checkIncomplete(g);
1674	<	f2.complete(two);
1675	<	checkCompletedWithWrappedCFException(g);
1676	<	}
1667	>	public void testThenAccept_sourceCancelled() {
1668	>	for (ExecutionMode m : ExecutionMode.values())
1669	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1670	>	{
1671	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1672	>	final NoopConsumer[] rs = new NoopConsumer[4];
1673	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1674	>
1675	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1676	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1677	>	assertTrue(f.cancel(mayInterruptIfRunning));
1678	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1679	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1680	>
1681	>	checkCompletedWithWrappedCancellationException(h0);
1682	>	checkCompletedWithWrappedCancellationException(h1);
1683	>	checkCompletedWithWrappedCancellationException(h2);
1684	>	checkCompletedWithWrappedCancellationException(h3);
1685	>	checkCancelled(f);
1686	>	for (NoopConsumer r : rs) r.assertNotInvoked();
1687	>	}}
1688
1689		/**
1690	<	* runAfterBothAsync result completes exceptionally if either source cancelled
1690	>	* thenAccept result completes exceptionally if action does
1691		*/
1692	<	public void testRunAfterBothAsync4() {
1693	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1694	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1695	<	Noop r = new Noop();
1696	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r);
1697	<	assertTrue(f.cancel(true));
1698	<	f2.complete(two);
1699	<	checkCompletedWithWrappedCancellationException(g);
1700	<
1701	<	r = new Noop();
1702	<	f = new CompletableFuture<>();
1703	<	f2 = new CompletableFuture<>();
1704	<	g = f.runAfterBothAsync(f2, r);
1705	<	f.complete(one);
1706	<	assertTrue(f2.cancel(true));
1707	<	checkCompletedWithWrappedCancellationException(g);
1708	<	}
1692	>	public void testThenAccept_actionFailed() {
1693	>	for (ExecutionMode m : ExecutionMode.values())
1694	>	for (Integer v1 : new Integer[] { 1, null })
1695	>	{
1696	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1697	>	final FailingConsumer[] rs = new FailingConsumer[4];
1698	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingConsumer(m);
1699	>
1700	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1701	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1702	>	assertTrue(f.complete(v1));
1703	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1704	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1705	>
1706	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1707	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1708	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1709	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1710	>	checkCompletedNormally(f, v1);
1711	>	}}
1712
1713		/**
1714	<	* applyToEitherAsync result completes normally after normal
1715	<	* completion of sources
1714	>	* thenCombine result completes normally after normal completion
1715	>	* of sources
1716		*/
1717	<	public void testApplyToEitherAsync() {
1718	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1719	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1720	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc);
1721	<	f.complete(one);
1722	<	checkCompletedNormally(g, two);
1723	<
1724	<	f = new CompletableFuture<>();
1725	<	f.complete(one);
1726	<	f2 = new CompletableFuture<>();
1727	<	g = f.applyToEitherAsync(f2, inc);
1728	<	checkCompletedNormally(g, two);
1729	<	}
1717	>	public void testThenCombine_normalCompletion() {
1718	>	for (ExecutionMode m : ExecutionMode.values())
1719	>	for (boolean fFirst : new boolean[] { true, false })
1720	>	for (Integer v1 : new Integer[] { 1, null })
1721	>	for (Integer v2 : new Integer[] { 2, null })
1722	>	{
1723	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1724	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1725	>	final SubtractFunction[] rs = new SubtractFunction[6];
1726	>	for (int i = 0; i < rs.length; i++) rs[i] = new SubtractFunction(m);
1727	>
1728	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1729	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1730	>	final Integer w1 =  fFirst ? v1 : v2;
1731	>	final Integer w2 = !fFirst ? v1 : v2;
1732	>
1733	>	final CompletableFuture<Integer> h0 = m.thenCombine(f, g, rs[0]);
1734	>	final CompletableFuture<Integer> h1 = m.thenCombine(fst, fst, rs[1]);
1735	>	assertTrue(fst.complete(w1));
1736	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, rs[2]);
1737	>	final CompletableFuture<Integer> h3 = m.thenCombine(fst, fst, rs[3]);
1738	>	checkIncomplete(h0); rs[0].assertNotInvoked();
1739	>	checkIncomplete(h2); rs[2].assertNotInvoked();
1740	>	checkCompletedNormally(h1, subtract(w1, w1));
1741	>	checkCompletedNormally(h3, subtract(w1, w1));
1742	>	rs[1].assertValue(subtract(w1, w1));
1743	>	rs[3].assertValue(subtract(w1, w1));
1744	>	assertTrue(snd.complete(w2));
1745	>	final CompletableFuture<Integer> h4 = m.thenCombine(f, g, rs[4]);
1746	>
1747	>	checkCompletedNormally(h0, subtract(v1, v2));
1748	>	checkCompletedNormally(h2, subtract(v1, v2));
1749	>	checkCompletedNormally(h4, subtract(v1, v2));
1750	>	rs[0].assertValue(subtract(v1, v2));
1751	>	rs[2].assertValue(subtract(v1, v2));
1752	>	rs[4].assertValue(subtract(v1, v2));
1753	>
1754	>	checkCompletedNormally(f, v1);
1755	>	checkCompletedNormally(g, v2);
1756	>	}}
1757
1758		/**
1759	<	* applyToEitherAsync result completes exceptionally after exceptional
1760	<	* completion of source
1759	>	* thenCombine result completes exceptionally after exceptional
1760	>	* completion of either source
1761		*/
1762	<	public void testApplyToEitherAsync2() {
1763	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1764	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1765	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc);
1766	<	f.completeExceptionally(new CFException());
1767	<	checkCompletedWithWrappedCFException(g);
1768	<
1769	<	f = new CompletableFuture<>();
1770	<	f2 = new CompletableFuture<>();
1771	<	f2.completeExceptionally(new CFException());
1772	<	g = f.applyToEitherAsync(f2, inc);
1773	<	f.complete(one);
1774	<	checkCompletedWithWrappedCFException(g);
1775	<	}
1762	>	public void testThenCombine_exceptionalCompletion() throws Throwable {
1763	>	for (ExecutionMode m : ExecutionMode.values())
1764	>	for (boolean fFirst : new boolean[] { true, false })
1765	>	for (boolean failFirst : new boolean[] { true, false })
1766	>	for (Integer v1 : new Integer[] { 1, null })
1767	>	{
1768	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1769	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1770	>	final CFException ex = new CFException();
1771	>	final SubtractFunction r1 = new SubtractFunction(m);
1772	>	final SubtractFunction r2 = new SubtractFunction(m);
1773	>	final SubtractFunction r3 = new SubtractFunction(m);
1774	>
1775	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1776	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1777	>	final Callable<Boolean> complete1 = failFirst ?
1778	>	() -> fst.completeExceptionally(ex) :
1779	>	() -> fst.complete(v1);
1780	>	final Callable<Boolean> complete2 = failFirst ?
1781	>	() -> snd.complete(v1) :
1782	>	() -> snd.completeExceptionally(ex);
1783	>
1784	>	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1785	>	assertTrue(complete1.call());
1786	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1787	>	checkIncomplete(h1);
1788	>	checkIncomplete(h2);
1789	>	assertTrue(complete2.call());
1790	>	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1791	>
1792	>	checkCompletedWithWrappedException(h1, ex);
1793	>	checkCompletedWithWrappedException(h2, ex);
1794	>	checkCompletedWithWrappedException(h3, ex);
1795	>	r1.assertNotInvoked();
1796	>	r2.assertNotInvoked();
1797	>	r3.assertNotInvoked();
1798	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1799	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
1800	>	}}
1801
1802		/**
1803	<	* applyToEitherAsync result completes exceptionally if action does
1803	>	* thenCombine result completes exceptionally if either source cancelled
1804		*/
1805	<	public void testApplyToEitherAsync3() {
1806	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1807	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1808	<	FailingFunction r = new FailingFunction();
1809	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, r);
1810	<	f.complete(one);
1811	<	checkCompletedWithWrappedCFException(g);
1812	<	}
1805	>	public void testThenCombine_sourceCancelled() throws Throwable {
1806	>	for (ExecutionMode m : ExecutionMode.values())
1807	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1808	>	for (boolean fFirst : new boolean[] { true, false })
1809	>	for (boolean failFirst : new boolean[] { true, false })
1810	>	for (Integer v1 : new Integer[] { 1, null })
1811	>	{
1812	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1813	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1814	>	final SubtractFunction r1 = new SubtractFunction(m);
1815	>	final SubtractFunction r2 = new SubtractFunction(m);
1816	>	final SubtractFunction r3 = new SubtractFunction(m);
1817	>
1818	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1819	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1820	>	final Callable<Boolean> complete1 = failFirst ?
1821	>	() -> fst.cancel(mayInterruptIfRunning) :
1822	>	() -> fst.complete(v1);
1823	>	final Callable<Boolean> complete2 = failFirst ?
1824	>	() -> snd.complete(v1) :
1825	>	() -> snd.cancel(mayInterruptIfRunning);
1826	>
1827	>	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1828	>	assertTrue(complete1.call());
1829	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1830	>	checkIncomplete(h1);
1831	>	checkIncomplete(h2);
1832	>	assertTrue(complete2.call());
1833	>	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1834	>
1835	>	checkCompletedWithWrappedCancellationException(h1);
1836	>	checkCompletedWithWrappedCancellationException(h2);
1837	>	checkCompletedWithWrappedCancellationException(h3);
1838	>	r1.assertNotInvoked();
1839	>	r2.assertNotInvoked();
1840	>	r3.assertNotInvoked();
1841	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1842	>	checkCancelled(failFirst ? fst : snd);
1843	>	}}
1844
1845		/**
1846	<	* applyToEitherAsync result completes exceptionally if either source cancelled
1846	>	* thenCombine result completes exceptionally if action does
1847		*/
1848	<	public void testApplyToEitherAsync4() {
1849	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1850	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1851	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc);
1852	<	assertTrue(f.cancel(true));
1853	<	checkCompletedWithWrappedCancellationException(g);
1854	<
1855	<	f = new CompletableFuture<>();
1856	<	f2 = new CompletableFuture<>();
1857	<	assertTrue(f2.cancel(true));
1858	<	g = f.applyToEitherAsync(f2, inc);
1859	<	checkCompletedWithWrappedCancellationException(g);
1860	<	}
1848	>	public void testThenCombine_actionFailed() {
1849	>	for (ExecutionMode m : ExecutionMode.values())
1850	>	for (boolean fFirst : new boolean[] { true, false })
1851	>	for (Integer v1 : new Integer[] { 1, null })
1852	>	for (Integer v2 : new Integer[] { 2, null })
1853	>	{
1854	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1855	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1856	>	final FailingBiFunction r1 = new FailingBiFunction(m);
1857	>	final FailingBiFunction r2 = new FailingBiFunction(m);
1858	>	final FailingBiFunction r3 = new FailingBiFunction(m);
1859	>
1860	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1861	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1862	>	final Integer w1 =  fFirst ? v1 : v2;
1863	>	final Integer w2 = !fFirst ? v1 : v2;
1864	>
1865	>	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1866	>	assertTrue(fst.complete(w1));
1867	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1868	>	assertTrue(snd.complete(w2));
1869	>	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1870	>
1871	>	checkCompletedWithWrappedException(h1, r1.ex);
1872	>	checkCompletedWithWrappedException(h2, r2.ex);
1873	>	checkCompletedWithWrappedException(h3, r3.ex);
1874	>	r1.assertInvoked();
1875	>	r2.assertInvoked();
1876	>	r3.assertInvoked();
1877	>	checkCompletedNormally(f, v1);
1878	>	checkCompletedNormally(g, v2);
1879	>	}}
1880
1881		/**
1882	<	* acceptEitherAsync result completes normally after normal
1882	>	* thenAcceptBoth result completes normally after normal
1883		* completion of sources
1884		*/
1885	<	public void testAcceptEitherAsync() {
1886	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1887	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1888	<	IncAction r = new IncAction();
1889	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
1890	<	f.complete(one);
1891	<	checkCompletedNormally(g, null);
1892	<	assertEquals(r.value, 2);
1893	<
1894	<	r = new IncAction();
1895	<	f = new CompletableFuture<>();
1896	<	f.complete(one);
1897	<	f2 = new CompletableFuture<>();
1898	<	g = f.acceptEitherAsync(f2, r);
1899	<	checkCompletedNormally(g, null);
1900	<	assertEquals(r.value, 2);
1901	<	}
1885	>	public void testThenAcceptBoth_normalCompletion() {
1886	>	for (ExecutionMode m : ExecutionMode.values())
1887	>	for (boolean fFirst : new boolean[] { true, false })
1888	>	for (Integer v1 : new Integer[] { 1, null })
1889	>	for (Integer v2 : new Integer[] { 2, null })
1890	>	{
1891	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1892	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1893	>	final SubtractAction r1 = new SubtractAction(m);
1894	>	final SubtractAction r2 = new SubtractAction(m);
1895	>	final SubtractAction r3 = new SubtractAction(m);
1896	>
1897	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1898	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1899	>	final Integer w1 =  fFirst ? v1 : v2;
1900	>	final Integer w2 = !fFirst ? v1 : v2;
1901	>
1902	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1903	>	assertTrue(fst.complete(w1));
1904	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1905	>	checkIncomplete(h1);
1906	>	checkIncomplete(h2);
1907	>	r1.assertNotInvoked();
1908	>	r2.assertNotInvoked();
1909	>	assertTrue(snd.complete(w2));
1910	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1911	>
1912	>	checkCompletedNormally(h1, null);
1913	>	checkCompletedNormally(h2, null);
1914	>	checkCompletedNormally(h3, null);
1915	>	r1.assertValue(subtract(v1, v2));
1916	>	r2.assertValue(subtract(v1, v2));
1917	>	r3.assertValue(subtract(v1, v2));
1918	>	checkCompletedNormally(f, v1);
1919	>	checkCompletedNormally(g, v2);
1920	>	}}
1921
1922		/**
1923	<	* acceptEitherAsync result completes exceptionally after exceptional
1924	<	* completion of source
1923	>	* thenAcceptBoth result completes exceptionally after exceptional
1924	>	* completion of either source
1925		*/
1926	<	public void testAcceptEitherAsync2() {
1927	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1928	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1929	<	IncAction r = new IncAction();
1930	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
1931	<	f.completeExceptionally(new CFException());
1932	<	checkCompletedWithWrappedCFException(g);
1933	<
1934	<	r = new IncAction();
1935	<	f = new CompletableFuture<>();
1936	<	f2 = new CompletableFuture<>();
1937	<	f2.completeExceptionally(new CFException());
1938	<	g = f.acceptEitherAsync(f2, r);
1939	<	f.complete(one);
1940	<	checkCompletedWithWrappedCFException(g);
1941	<	}
1926	>	public void testThenAcceptBoth_exceptionalCompletion() throws Throwable {
1927	>	for (ExecutionMode m : ExecutionMode.values())
1928	>	for (boolean fFirst : new boolean[] { true, false })
1929	>	for (boolean failFirst : new boolean[] { true, false })
1930	>	for (Integer v1 : new Integer[] { 1, null })
1931	>	{
1932	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1933	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1934	>	final CFException ex = new CFException();
1935	>	final SubtractAction r1 = new SubtractAction(m);
1936	>	final SubtractAction r2 = new SubtractAction(m);
1937	>	final SubtractAction r3 = new SubtractAction(m);
1938	>
1939	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1940	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1941	>	final Callable<Boolean> complete1 = failFirst ?
1942	>	() -> fst.completeExceptionally(ex) :
1943	>	() -> fst.complete(v1);
1944	>	final Callable<Boolean> complete2 = failFirst ?
1945	>	() -> snd.complete(v1) :
1946	>	() -> snd.completeExceptionally(ex);
1947	>
1948	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1949	>	assertTrue(complete1.call());
1950	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1951	>	checkIncomplete(h1);
1952	>	checkIncomplete(h2);
1953	>	assertTrue(complete2.call());
1954	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1955	>
1956	>	checkCompletedWithWrappedException(h1, ex);
1957	>	checkCompletedWithWrappedException(h2, ex);
1958	>	checkCompletedWithWrappedException(h3, ex);
1959	>	r1.assertNotInvoked();
1960	>	r2.assertNotInvoked();
1961	>	r3.assertNotInvoked();
1962	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1963	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
1964	>	}}
1965
1966		/**
1967	<	* acceptEitherAsync result completes exceptionally if action does
1967	>	* thenAcceptBoth result completes exceptionally if either source cancelled
1968		*/
1969	<	public void testAcceptEitherAsync3() {
1970	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1971	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1972	<	FailingConsumer r = new FailingConsumer();
1973	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
1974	<	f.complete(one);
1975	<	checkCompletedWithWrappedCFException(g);
1976	<	}
1969	>	public void testThenAcceptBoth_sourceCancelled() throws Throwable {
1970	>	for (ExecutionMode m : ExecutionMode.values())
1971	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1972	>	for (boolean fFirst : new boolean[] { true, false })
1973	>	for (boolean failFirst : new boolean[] { true, false })
1974	>	for (Integer v1 : new Integer[] { 1, null })
1975	>	{
1976	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1977	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1978	>	final SubtractAction r1 = new SubtractAction(m);
1979	>	final SubtractAction r2 = new SubtractAction(m);
1980	>	final SubtractAction r3 = new SubtractAction(m);
1981	>
1982	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1983	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1984	>	final Callable<Boolean> complete1 = failFirst ?
1985	>	() -> fst.cancel(mayInterruptIfRunning) :
1986	>	() -> fst.complete(v1);
1987	>	final Callable<Boolean> complete2 = failFirst ?
1988	>	() -> snd.complete(v1) :
1989	>	() -> snd.cancel(mayInterruptIfRunning);
1990	>
1991	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1992	>	assertTrue(complete1.call());
1993	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1994	>	checkIncomplete(h1);
1995	>	checkIncomplete(h2);
1996	>	assertTrue(complete2.call());
1997	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1998	>
1999	>	checkCompletedWithWrappedCancellationException(h1);
2000	>	checkCompletedWithWrappedCancellationException(h2);
2001	>	checkCompletedWithWrappedCancellationException(h3);
2002	>	r1.assertNotInvoked();
2003	>	r2.assertNotInvoked();
2004	>	r3.assertNotInvoked();
2005	>	checkCompletedNormally(failFirst ? snd : fst, v1);
2006	>	checkCancelled(failFirst ? fst : snd);
2007	>	}}
2008
2009		/**
2010	<	* acceptEitherAsync result completes exceptionally if either
1916	<	* source cancelled
2010	>	* thenAcceptBoth result completes exceptionally if action does
2011		*/
2012	<	public void testAcceptEitherAsync4() {
2013	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2014	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2015	<	IncAction r = new IncAction();
2016	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
2017	<	assertTrue(f.cancel(true));
2018	<	checkCompletedWithWrappedCancellationException(g);
2019	<
2020	<	r = new IncAction();
2021	<	f = new CompletableFuture<>();
2022	<	f2 = new CompletableFuture<>();
2023	<	assertTrue(f2.cancel(true));
2024	<	g = f.acceptEitherAsync(f2, r);
2025	<	checkCompletedWithWrappedCancellationException(g);
2026	<	}
2012	>	public void testThenAcceptBoth_actionFailed() {
2013	>	for (ExecutionMode m : ExecutionMode.values())
2014	>	for (boolean fFirst : new boolean[] { true, false })
2015	>	for (Integer v1 : new Integer[] { 1, null })
2016	>	for (Integer v2 : new Integer[] { 2, null })
2017	>	{
2018	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2019	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2020	>	final FailingBiConsumer r1 = new FailingBiConsumer(m);
2021	>	final FailingBiConsumer r2 = new FailingBiConsumer(m);
2022	>	final FailingBiConsumer r3 = new FailingBiConsumer(m);
2023	>
2024	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2025	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2026	>	final Integer w1 =  fFirst ? v1 : v2;
2027	>	final Integer w2 = !fFirst ? v1 : v2;
2028	>
2029	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
2030	>	assertTrue(fst.complete(w1));
2031	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
2032	>	assertTrue(snd.complete(w2));
2033	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
2034	>
2035	>	checkCompletedWithWrappedException(h1, r1.ex);
2036	>	checkCompletedWithWrappedException(h2, r2.ex);
2037	>	checkCompletedWithWrappedException(h3, r3.ex);
2038	>	r1.assertInvoked();
2039	>	r2.assertInvoked();
2040	>	r3.assertInvoked();
2041	>	checkCompletedNormally(f, v1);
2042	>	checkCompletedNormally(g, v2);
2043	>	}}
2044
2045		/**
2046	<	* runAfterEitherAsync result completes normally after normal
2046	>	* runAfterBoth result completes normally after normal
2047		* completion of sources
2048		*/
2049	<	public void testRunAfterEitherAsync() {
2050	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2051	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2052	<	Noop r = new Noop();
2053	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
2054	<	f.complete(one);
2055	<	checkCompletedNormally(g, null);
2056	<	assertTrue(r.ran);
2057	<
2058	<	r = new Noop();
2059	<	f = new CompletableFuture<>();
2060	<	f.complete(one);
2061	<	f2 = new CompletableFuture<>();
2062	<	g = f.runAfterEitherAsync(f2, r);
2063	<	checkCompletedNormally(g, null);
2064	<	assertTrue(r.ran);
2065	<	}
2066	<
2067	<	/**
2068	<	* runAfterEitherAsync result completes exceptionally after exceptional
2069	<	* completion of source
2070	<	*/
2071	<	public void testRunAfterEitherAsync2() {
2072	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2073	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2074	<	Noop r = new Noop();
2075	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
2076	<	f.completeExceptionally(new CFException());
2077	<	checkCompletedWithWrappedCFException(g);
2078	<
2079	<	r = new Noop();
2080	<	f = new CompletableFuture<>();
2081	<	f2 = new CompletableFuture<>();
2082	<	f2.completeExceptionally(new CFException());
2083	<	g = f.runAfterEitherAsync(f2, r);
2084	<	f.complete(one);
1974	<	checkCompletedWithWrappedCFException(g);
1975	<	}
1976	<
1977	<	/**
1978	<	* runAfterEitherAsync result completes exceptionally if action does
1979	<	*/
1980	<	public void testRunAfterEitherAsync3() {
1981	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1982	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1983	<	FailingNoop r = new FailingNoop();
1984	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
1985	<	f.complete(one);
1986	<	checkCompletedWithWrappedCFException(g);
1987	<	}
1988	<
1989	<	/**
1990	<	* runAfterEitherAsync result completes exceptionally if either
1991	<	* source cancelled
1992	<	*/
1993	<	public void testRunAfterEitherAsync4() {
1994	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1995	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1996	<	Noop r = new Noop();
1997	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
1998	<	assertTrue(f.cancel(true));
1999	<	checkCompletedWithWrappedCancellationException(g);
2000	<
2001	<	r = new Noop();
2002	<	f = new CompletableFuture<>();
2003	<	f2 = new CompletableFuture<>();
2004	<	assertTrue(f2.cancel(true));
2005	<	g = f.runAfterEitherAsync(f2, r);
2006	<	checkCompletedWithWrappedCancellationException(g);
2007	<	}
2008	<
2009	<	/**
2010	<	* thenComposeAsync result completes normally after normal
2011	<	* completion of source
2012	<	*/
2013	<	public void testThenComposeAsync() {
2014	<	CompletableFuture<Integer> f, g;
2015	<	CompletableFutureInc r;
2016	<
2017	<	f = new CompletableFuture<>();
2018	<	g = f.thenComposeAsync(r = new CompletableFutureInc());
2019	<	f.complete(one);
2020	<	checkCompletedNormally(g, two);
2021	<
2022	<	f = new CompletableFuture<>();
2023	<	f.complete(one);
2024	<	g = f.thenComposeAsync(r = new CompletableFutureInc());
2025	<	checkCompletedNormally(g, two);
2026	<	}
2049	>	public void testRunAfterBoth_normalCompletion() {
2050	>	for (ExecutionMode m : ExecutionMode.values())
2051	>	for (boolean fFirst : new boolean[] { true, false })
2052	>	for (Integer v1 : new Integer[] { 1, null })
2053	>	for (Integer v2 : new Integer[] { 2, null })
2054	>	{
2055	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2056	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2057	>	final Noop r1 = new Noop(m);
2058	>	final Noop r2 = new Noop(m);
2059	>	final Noop r3 = new Noop(m);
2060	>
2061	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2062	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2063	>	final Integer w1 =  fFirst ? v1 : v2;
2064	>	final Integer w2 = !fFirst ? v1 : v2;
2065	>
2066	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2067	>	assertTrue(fst.complete(w1));
2068	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2069	>	checkIncomplete(h1);
2070	>	checkIncomplete(h2);
2071	>	r1.assertNotInvoked();
2072	>	r2.assertNotInvoked();
2073	>	assertTrue(snd.complete(w2));
2074	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2075	>
2076	>	checkCompletedNormally(h1, null);
2077	>	checkCompletedNormally(h2, null);
2078	>	checkCompletedNormally(h3, null);
2079	>	r1.assertInvoked();
2080	>	r2.assertInvoked();
2081	>	r3.assertInvoked();
2082	>	checkCompletedNormally(f, v1);
2083	>	checkCompletedNormally(g, v2);
2084	>	}}
2085
2086		/**
2087	<	* thenComposeAsync result completes exceptionally after
2088	<	* exceptional completion of source
2087	>	* runAfterBoth result completes exceptionally after exceptional
2088	>	* completion of either source
2089		*/
2090	<	public void testThenComposeAsync2() {
2091	<	CompletableFuture<Integer> f, g;
2092	<	CompletableFutureInc r;
2093	<
2094	<	f = new CompletableFuture<>();
2095	<	g = f.thenComposeAsync(r = new CompletableFutureInc());
2096	<	f.completeExceptionally(new CFException());
2097	<	checkCompletedWithWrappedCFException(g);
2098	<	assertFalse(r.ran);
2099	<
2100	<	f = new CompletableFuture<>();
2101	<	f.completeExceptionally(new CFException());
2102	<	g = f.thenComposeAsync(r = new CompletableFutureInc());
2103	<	checkCompletedWithWrappedCFException(g);
2104	<	assertFalse(r.ran);
2105	<	}
2090	>	public void testRunAfterBoth_exceptionalCompletion() throws Throwable {
2091	>	for (ExecutionMode m : ExecutionMode.values())
2092	>	for (boolean fFirst : new boolean[] { true, false })
2093	>	for (boolean failFirst : new boolean[] { true, false })
2094	>	for (Integer v1 : new Integer[] { 1, null })
2095	>	{
2096	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2097	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2098	>	final CFException ex = new CFException();
2099	>	final Noop r1 = new Noop(m);
2100	>	final Noop r2 = new Noop(m);
2101	>	final Noop r3 = new Noop(m);
2102	>
2103	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2104	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2105	>	final Callable<Boolean> complete1 = failFirst ?
2106	>	() -> fst.completeExceptionally(ex) :
2107	>	() -> fst.complete(v1);
2108	>	final Callable<Boolean> complete2 = failFirst ?
2109	>	() -> snd.complete(v1) :
2110	>	() -> snd.completeExceptionally(ex);
2111	>
2112	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2113	>	assertTrue(complete1.call());
2114	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2115	>	checkIncomplete(h1);
2116	>	checkIncomplete(h2);
2117	>	assertTrue(complete2.call());
2118	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2119	>
2120	>	checkCompletedWithWrappedException(h1, ex);
2121	>	checkCompletedWithWrappedException(h2, ex);
2122	>	checkCompletedWithWrappedException(h3, ex);
2123	>	r1.assertNotInvoked();
2124	>	r2.assertNotInvoked();
2125	>	r3.assertNotInvoked();
2126	>	checkCompletedNormally(failFirst ? snd : fst, v1);
2127	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
2128	>	}}
2129
2130		/**
2131	<	* thenComposeAsync result completes exceptionally if action does
2131	>	* runAfterBoth result completes exceptionally if either source cancelled
2132		*/
2133	<	public void testThenComposeAsync3() {
2134	<	CompletableFuture<Integer> f, g;
2135	<	FailingCompletableFutureFunction r;
2136	<
2137	<	f = new CompletableFuture<>();
2138	<	g = f.thenComposeAsync(r = new FailingCompletableFutureFunction());
2139	<	f.complete(one);
2140	<	checkCompletedWithWrappedCFException(g);
2141	<
2142	<	f = new CompletableFuture<>();
2143	<	f.complete(one);
2144	<	g = f.thenComposeAsync(r = new FailingCompletableFutureFunction());
2145	<	checkCompletedWithWrappedCFException(g);
2146	<	}
2133	>	public void testRunAfterBoth_sourceCancelled() throws Throwable {
2134	>	for (ExecutionMode m : ExecutionMode.values())
2135	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2136	>	for (boolean fFirst : new boolean[] { true, false })
2137	>	for (boolean failFirst : new boolean[] { true, false })
2138	>	for (Integer v1 : new Integer[] { 1, null })
2139	>	{
2140	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2141	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2142	>	final Noop r1 = new Noop(m);
2143	>	final Noop r2 = new Noop(m);
2144	>	final Noop r3 = new Noop(m);
2145	>
2146	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2147	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2148	>	final Callable<Boolean> complete1 = failFirst ?
2149	>	() -> fst.cancel(mayInterruptIfRunning) :
2150	>	() -> fst.complete(v1);
2151	>	final Callable<Boolean> complete2 = failFirst ?
2152	>	() -> snd.complete(v1) :
2153	>	() -> snd.cancel(mayInterruptIfRunning);
2154	>
2155	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2156	>	assertTrue(complete1.call());
2157	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2158	>	checkIncomplete(h1);
2159	>	checkIncomplete(h2);
2160	>	assertTrue(complete2.call());
2161	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2162	>
2163	>	checkCompletedWithWrappedCancellationException(h1);
2164	>	checkCompletedWithWrappedCancellationException(h2);
2165	>	checkCompletedWithWrappedCancellationException(h3);
2166	>	r1.assertNotInvoked();
2167	>	r2.assertNotInvoked();
2168	>	r3.assertNotInvoked();
2169	>	checkCompletedNormally(failFirst ? snd : fst, v1);
2170	>	checkCancelled(failFirst ? fst : snd);
2171	>	}}
2172
2173		/**
2174	<	* thenComposeAsync result completes exceptionally if source cancelled
2174	>	* runAfterBoth result completes exceptionally if action does
2175		*/
2176	<	public void testThenComposeAsync4() {
2177	<	CompletableFuture<Integer> f, g;
2178	<	CompletableFutureInc r;
2179	<
2180	<	f = new CompletableFuture<>();
2181	<	g = f.thenComposeAsync(r = new CompletableFutureInc());
2182	<	assertTrue(f.cancel(true));
2183	<	checkCompletedWithWrappedCancellationException(g);
2184	<
2185	<	f = new CompletableFuture<>();
2186	<	assertTrue(f.cancel(true));
2187	<	g = f.thenComposeAsync(r = new CompletableFutureInc());
2188	<	checkCompletedWithWrappedCancellationException(g);
2189	<	}
2190	<
2191	<	// async with explicit executors
2176	>	public void testRunAfterBoth_actionFailed() {
2177	>	for (ExecutionMode m : ExecutionMode.values())
2178	>	for (boolean fFirst : new boolean[] { true, false })
2179	>	for (Integer v1 : new Integer[] { 1, null })
2180	>	for (Integer v2 : new Integer[] { 2, null })
2181	>	{
2182	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2183	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2184	>	final FailingRunnable r1 = new FailingRunnable(m);
2185	>	final FailingRunnable r2 = new FailingRunnable(m);
2186	>	final FailingRunnable r3 = new FailingRunnable(m);
2187	>
2188	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2189	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2190	>	final Integer w1 =  fFirst ? v1 : v2;
2191	>	final Integer w2 = !fFirst ? v1 : v2;
2192	>
2193	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2194	>	assertTrue(fst.complete(w1));
2195	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2196	>	assertTrue(snd.complete(w2));
2197	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2198	>
2199	>	checkCompletedWithWrappedException(h1, r1.ex);
2200	>	checkCompletedWithWrappedException(h2, r2.ex);
2201	>	checkCompletedWithWrappedException(h3, r3.ex);
2202	>	r1.assertInvoked();
2203	>	r2.assertInvoked();
2204	>	r3.assertInvoked();
2205	>	checkCompletedNormally(f, v1);
2206	>	checkCompletedNormally(g, v2);
2207	>	}}
2208
2209		/**
2210	<	* thenRunAsync result completes normally after normal completion of source
2210	>	* applyToEither result completes normally after normal completion
2211	>	* of either source
2212		*/
2213	<	public void testThenRunAsyncE() {
2214	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2215	<	Noop r = new Noop();
2216	<	CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
2217	<	f.complete(null);
2218	<	checkCompletedNormally(g, null);
2219	<
2220	<	// reordered version
2221	<	f = new CompletableFuture<>();
2222	<	f.complete(null);
2223	<	r = new Noop();
2224	<	g = f.thenRunAsync(r, new ThreadExecutor());
2225	<	checkCompletedNormally(g, null);
2226	<	}
2213	>	public void testApplyToEither_normalCompletion() {
2214	>	for (ExecutionMode m : ExecutionMode.values())
2215	>	for (Integer v1 : new Integer[] { 1, null })
2216	>	for (Integer v2 : new Integer[] { 2, null })
2217	>	{
2218	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2219	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2220	>	final IncFunction[] rs = new IncFunction[6];
2221	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2222	>
2223	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2224	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2225	>	checkIncomplete(h0);
2226	>	checkIncomplete(h1);
2227	>	rs[0].assertNotInvoked();
2228	>	rs[1].assertNotInvoked();
2229	>	f.complete(v1);
2230	>	checkCompletedNormally(h0, inc(v1));
2231	>	checkCompletedNormally(h1, inc(v1));
2232	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2233	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2234	>	checkCompletedNormally(h2, inc(v1));
2235	>	checkCompletedNormally(h3, inc(v1));
2236	>	g.complete(v2);
2237	>
2238	>	// unspecified behavior - both source completions available
2239	>	final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2240	>	final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2241	>	rs[4].assertValue(h4.join());
2242	>	rs[5].assertValue(h5.join());
2243	>	assertTrue(Objects.equals(inc(v1), h4.join()) ||
2244	>	Objects.equals(inc(v2), h4.join()));
2245	>	assertTrue(Objects.equals(inc(v1), h5.join()) ||
2246	>	Objects.equals(inc(v2), h5.join()));
2247	>
2248	>	checkCompletedNormally(f, v1);
2249	>	checkCompletedNormally(g, v2);
2250	>	checkCompletedNormally(h0, inc(v1));
2251	>	checkCompletedNormally(h1, inc(v1));
2252	>	checkCompletedNormally(h2, inc(v1));
2253	>	checkCompletedNormally(h3, inc(v1));
2254	>	for (int i = 0; i < 4; i++) rs[i].assertValue(inc(v1));
2255	>	}}
2256
2257		/**
2258	<	* thenRunAsync result completes exceptionally after exceptional
2259	<	* completion of source
2258	>	* applyToEither result completes exceptionally after exceptional
2259	>	* completion of either source
2260		*/
2261	<	public void testThenRunAsync2E() {
2262	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2263	<	Noop r = new Noop();
2264	<	CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
2265	<	f.completeExceptionally(new CFException());
2261	>	public void testApplyToEither_exceptionalCompletion() {
2262	>	for (ExecutionMode m : ExecutionMode.values())
2263	>	for (Integer v1 : new Integer[] { 1, null })
2264	>	{
2265	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2266	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2267	>	final CFException ex = new CFException();
2268	>	final IncFunction[] rs = new IncFunction[6];
2269	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2270	>
2271	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2272	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2273	>	checkIncomplete(h0);
2274	>	checkIncomplete(h1);
2275	>	rs[0].assertNotInvoked();
2276	>	rs[1].assertNotInvoked();
2277	>	f.completeExceptionally(ex);
2278	>	checkCompletedWithWrappedException(h0, ex);
2279	>	checkCompletedWithWrappedException(h1, ex);
2280	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2281	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2282	>	checkCompletedWithWrappedException(h2, ex);
2283	>	checkCompletedWithWrappedException(h3, ex);
2284	>	g.complete(v1);
2285	>
2286	>	// unspecified behavior - both source completions available
2287	>	final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2288	>	final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2289		try {
2290	<	g.join();
2291	<	shouldThrow();
2292	<	} catch (CompletionException success) {}
2293	<	checkCompletedWithWrappedCFException(g);
2294	<	}
2295	<
2296	<	/**
2297	<	* thenRunAsync result completes exceptionally if action does
2298	<	*/
2299	<	public void testThenRunAsync3E() {
2300	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2301	<	FailingNoop r = new FailingNoop();
2302	<	CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
2128	<	f.complete(null);
2129	<	checkCompletedWithWrappedCFException(g);
2130	<	}
2131	<
2132	<	/**
2133	<	* thenRunAsync result completes exceptionally if source cancelled
2134	<	*/
2135	<	public void testThenRunAsync4E() {
2136	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2137	<	Noop r = new Noop();
2138	<	CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
2139	<	assertTrue(f.cancel(true));
2140	<	checkCompletedWithWrappedCancellationException(g);
2141	<	}
2290	>	assertEquals(inc(v1), h4.join());
2291	>	rs[4].assertValue(inc(v1));
2292	>	} catch (CompletionException ok) {
2293	>	checkCompletedWithWrappedException(h4, ex);
2294	>	rs[4].assertNotInvoked();
2295	>	}
2296	>	try {
2297	>	assertEquals(inc(v1), h5.join());
2298	>	rs[5].assertValue(inc(v1));
2299	>	} catch (CompletionException ok) {
2300	>	checkCompletedWithWrappedException(h5, ex);
2301	>	rs[5].assertNotInvoked();
2302	>	}
2303
2304	<	/**
2305	<	* thenApplyAsync result completes normally after normal completion of source
2306	<	*/
2307	<	public void testThenApplyAsyncE() {
2308	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2309	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc, new ThreadExecutor());
2310	<	f.complete(one);
2311	<	checkCompletedNormally(g, two);
2312	<	}
2304	>	checkCompletedExceptionally(f, ex);
2305	>	checkCompletedNormally(g, v1);
2306	>	checkCompletedWithWrappedException(h0, ex);
2307	>	checkCompletedWithWrappedException(h1, ex);
2308	>	checkCompletedWithWrappedException(h2, ex);
2309	>	checkCompletedWithWrappedException(h3, ex);
2310	>	checkCompletedWithWrappedException(h4, ex);
2311	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2312	>	}}
2313	>
2314	>	public void testApplyToEither_exceptionalCompletion2() {
2315	>	for (ExecutionMode m : ExecutionMode.values())
2316	>	for (boolean fFirst : new boolean[] { true, false })
2317	>	for (Integer v1 : new Integer[] { 1, null })
2318	>	{
2319	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2320	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2321	>	final CFException ex = new CFException();
2322	>	final IncFunction[] rs = new IncFunction[6];
2323	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2324	>
2325	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2326	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2327	>	assertTrue(fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2328	>	assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2329	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2330	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2331
2332	<	/**
2333	<	* thenApplyAsync result completes exceptionally after exceptional
2334	<	* completion of source
2335	<	*/
2336	<	public void testThenApplyAsync2E() {
2337	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2338	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc, new ThreadExecutor());
2339	<	f.completeExceptionally(new CFException());
2340	<	checkCompletedWithWrappedCFException(g);
2341	<	}
2332	>	// unspecified behavior - both source completions available
2333	>	try {
2334	>	assertEquals(inc(v1), h0.join());
2335	>	rs[0].assertValue(inc(v1));
2336	>	} catch (CompletionException ok) {
2337	>	checkCompletedWithWrappedException(h0, ex);
2338	>	rs[0].assertNotInvoked();
2339	>	}
2340	>	try {
2341	>	assertEquals(inc(v1), h1.join());
2342	>	rs[1].assertValue(inc(v1));
2343	>	} catch (CompletionException ok) {
2344	>	checkCompletedWithWrappedException(h1, ex);
2345	>	rs[1].assertNotInvoked();
2346	>	}
2347	>	try {
2348	>	assertEquals(inc(v1), h2.join());
2349	>	rs[2].assertValue(inc(v1));
2350	>	} catch (CompletionException ok) {
2351	>	checkCompletedWithWrappedException(h2, ex);
2352	>	rs[2].assertNotInvoked();
2353	>	}
2354	>	try {
2355	>	assertEquals(inc(v1), h3.join());
2356	>	rs[3].assertValue(inc(v1));
2357	>	} catch (CompletionException ok) {
2358	>	checkCompletedWithWrappedException(h3, ex);
2359	>	rs[3].assertNotInvoked();
2360	>	}
2361
2362	<	/**
2363	<	* thenApplyAsync result completes exceptionally if action does
2364	<	*/
2167	<	public void testThenApplyAsync3E() {
2168	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2169	<	FailingFunction r = new FailingFunction();
2170	<	CompletableFuture<Integer> g = f.thenApplyAsync(r, new ThreadExecutor());
2171	<	f.complete(null);
2172	<	checkCompletedWithWrappedCFException(g);
2173	<	}
2362	>	checkCompletedNormally(f, v1);
2363	>	checkCompletedExceptionally(g, ex);
2364	>	}}
2365
2366		/**
2367	<	* thenApplyAsync result completes exceptionally if source cancelled
2367	>	* applyToEither result completes exceptionally if either source cancelled
2368		*/
2369	<	public void testThenApplyAsync4E() {
2370	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2371	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc, new ThreadExecutor());
2372	<	assertTrue(f.cancel(true));
2373	<	checkCompletedWithWrappedCancellationException(g);
2374	<	}
2369	>	public void testApplyToEither_sourceCancelled() {
2370	>	for (ExecutionMode m : ExecutionMode.values())
2371	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2372	>	for (Integer v1 : new Integer[] { 1, null })
2373	>	{
2374	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2375	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2376	>	final IncFunction[] rs = new IncFunction[6];
2377	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2378	>
2379	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2380	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2381	>	checkIncomplete(h0);
2382	>	checkIncomplete(h1);
2383	>	rs[0].assertNotInvoked();
2384	>	rs[1].assertNotInvoked();
2385	>	f.cancel(mayInterruptIfRunning);
2386	>	checkCompletedWithWrappedCancellationException(h0);
2387	>	checkCompletedWithWrappedCancellationException(h1);
2388	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2389	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2390	>	checkCompletedWithWrappedCancellationException(h2);
2391	>	checkCompletedWithWrappedCancellationException(h3);
2392	>	g.complete(v1);
2393	>
2394	>	// unspecified behavior - both source completions available
2395	>	final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2396	>	final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2397	>	try {
2398	>	assertEquals(inc(v1), h4.join());
2399	>	rs[4].assertValue(inc(v1));
2400	>	} catch (CompletionException ok) {
2401	>	checkCompletedWithWrappedCancellationException(h4);
2402	>	rs[4].assertNotInvoked();
2403	>	}
2404	>	try {
2405	>	assertEquals(inc(v1), h5.join());
2406	>	rs[5].assertValue(inc(v1));
2407	>	} catch (CompletionException ok) {
2408	>	checkCompletedWithWrappedCancellationException(h5);
2409	>	rs[5].assertNotInvoked();
2410	>	}
2411
2412	<	/**
2413	<	* thenAcceptAsync result completes normally after normal
2414	<	* completion of source
2415	<	*/
2416	<	public void testThenAcceptAsyncE() {
2417	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2418	<	IncAction r = new IncAction();
2419	<	CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
2420	<	f.complete(one);
2421	<	checkCompletedNormally(g, null);
2422	<	assertEquals(r.value, 2);
2423	<	}
2412	>	checkCancelled(f);
2413	>	checkCompletedNormally(g, v1);
2414	>	checkCompletedWithWrappedCancellationException(h0);
2415	>	checkCompletedWithWrappedCancellationException(h1);
2416	>	checkCompletedWithWrappedCancellationException(h2);
2417	>	checkCompletedWithWrappedCancellationException(h3);
2418	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2419	>	}}
2420	>
2421	>	public void testApplyToEither_sourceCancelled2() {
2422	>	for (ExecutionMode m : ExecutionMode.values())
2423	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2424	>	for (boolean fFirst : new boolean[] { true, false })
2425	>	for (Integer v1 : new Integer[] { 1, null })
2426	>	{
2427	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2428	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2429	>	final IncFunction[] rs = new IncFunction[6];
2430	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2431	>
2432	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2433	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2434	>	assertTrue(fFirst ? f.complete(v1) : g.cancel(mayInterruptIfRunning));
2435	>	assertTrue(!fFirst ? f.complete(v1) : g.cancel(mayInterruptIfRunning));
2436	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2437	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2438
2439	<	/**
2440	<	* thenAcceptAsync result completes exceptionally after exceptional
2441	<	* completion of source
2442	<	*/
2443	<	public void testThenAcceptAsync2E() {
2444	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2445	<	IncAction r = new IncAction();
2446	<	CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
2447	<	f.completeExceptionally(new CFException());
2448	<	checkCompletedWithWrappedCFException(g);
2449	<	}
2439	>	// unspecified behavior - both source completions available
2440	>	try {
2441	>	assertEquals(inc(v1), h0.join());
2442	>	rs[0].assertValue(inc(v1));
2443	>	} catch (CompletionException ok) {
2444	>	checkCompletedWithWrappedCancellationException(h0);
2445	>	rs[0].assertNotInvoked();
2446	>	}
2447	>	try {
2448	>	assertEquals(inc(v1), h1.join());
2449	>	rs[1].assertValue(inc(v1));
2450	>	} catch (CompletionException ok) {
2451	>	checkCompletedWithWrappedCancellationException(h1);
2452	>	rs[1].assertNotInvoked();
2453	>	}
2454	>	try {
2455	>	assertEquals(inc(v1), h2.join());
2456	>	rs[2].assertValue(inc(v1));
2457	>	} catch (CompletionException ok) {
2458	>	checkCompletedWithWrappedCancellationException(h2);
2459	>	rs[2].assertNotInvoked();
2460	>	}
2461	>	try {
2462	>	assertEquals(inc(v1), h3.join());
2463	>	rs[3].assertValue(inc(v1));
2464	>	} catch (CompletionException ok) {
2465	>	checkCompletedWithWrappedCancellationException(h3);
2466	>	rs[3].assertNotInvoked();
2467	>	}
2468
2469	<	/**
2470	<	* thenAcceptAsync result completes exceptionally if action does
2471	<	*/
2213	<	public void testThenAcceptAsync3E() {
2214	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2215	<	FailingConsumer r = new FailingConsumer();
2216	<	CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
2217	<	f.complete(null);
2218	<	checkCompletedWithWrappedCFException(g);
2219	<	}
2469	>	checkCompletedNormally(f, v1);
2470	>	checkCancelled(g);
2471	>	}}
2472
2473		/**
2474	<	* thenAcceptAsync result completes exceptionally if source cancelled
2474	>	* applyToEither result completes exceptionally if action does
2475		*/
2476	<	public void testThenAcceptAsync4E() {
2477	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2478	<	IncAction r = new IncAction();
2479	<	CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
2480	<	assertTrue(f.cancel(true));
2481	<	checkCompletedWithWrappedCancellationException(g);
2482	<	}
2476	>	public void testApplyToEither_actionFailed() {
2477	>	for (ExecutionMode m : ExecutionMode.values())
2478	>	for (Integer v1 : new Integer[] { 1, null })
2479	>	for (Integer v2 : new Integer[] { 2, null })
2480	>	{
2481	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2482	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2483	>	final FailingFunction[] rs = new FailingFunction[6];
2484	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingFunction(m);
2485	>
2486	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2487	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2488	>	f.complete(v1);
2489	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2490	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2491	>	checkCompletedWithWrappedException(h0, rs[0].ex);
2492	>	checkCompletedWithWrappedException(h1, rs[1].ex);
2493	>	checkCompletedWithWrappedException(h2, rs[2].ex);
2494	>	checkCompletedWithWrappedException(h3, rs[3].ex);
2495	>	for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2496	>
2497	>	g.complete(v2);
2498	>
2499	>	// unspecified behavior - both source completions available
2500	>	final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2501	>	final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2502	>
2503	>	checkCompletedWithWrappedException(h4, rs[4].ex);
2504	>	assertTrue(Objects.equals(v1, rs[4].value) ||
2505	>	Objects.equals(v2, rs[4].value));
2506	>	checkCompletedWithWrappedException(h5, rs[5].ex);
2507	>	assertTrue(Objects.equals(v1, rs[5].value) ||
2508	>	Objects.equals(v2, rs[5].value));
2509	>
2510	>	checkCompletedNormally(f, v1);
2511	>	checkCompletedNormally(g, v2);
2512	>	}}
2513
2514		/**
2515	<	* thenCombineAsync result completes normally after normal
2516	<	* completion of sources
2515	>	* acceptEither result completes normally after normal completion
2516	>	* of either source
2517		*/
2518	<	public void testThenCombineAsyncE() {
2519	<	CompletableFuture<Integer> f, g, h;
2520	<	ThreadExecutor e = new ThreadExecutor();
2521	<	int count = 0;
2522	<
2523	<	f = new CompletableFuture<>();
2524	<	g = new CompletableFuture<>();
2525	<	h = f.thenCombineAsync(g, subtract, e);
2526	<	f.complete(3);
2527	<	checkIncomplete(h);
2528	<	g.complete(1);
2529	<	checkCompletedNormally(h, 2);
2530	<	assertEquals(++count, e.count.get());
2531	<
2532	<	f = new CompletableFuture<>();
2533	<	g = new CompletableFuture<>();
2534	<	h = f.thenCombineAsync(g, subtract, e);
2535	<	g.complete(1);
2536	<	checkIncomplete(h);
2537	<	f.complete(3);
2538	<	checkCompletedNormally(h, 2);
2539	<	assertEquals(++count, e.count.get());
2540	<
2541	<	f = new CompletableFuture<>();
2542	<	g = new CompletableFuture<>();
2543	<	g.complete(1);
2544	<	f.complete(3);
2545	<	h = f.thenCombineAsync(g, subtract, e);
2546	<	checkCompletedNormally(h, 2);
2547	<	assertEquals(++count, e.count.get());
2548	<	}
2518	>	public void testAcceptEither_normalCompletion() {
2519	>	for (ExecutionMode m : ExecutionMode.values())
2520	>	for (Integer v1 : new Integer[] { 1, null })
2521	>	for (Integer v2 : new Integer[] { 2, null })
2522	>	{
2523	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2524	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2525	>	final NoopConsumer[] rs = new NoopConsumer[6];
2526	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2527	>
2528	>	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2529	>	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2530	>	checkIncomplete(h0);
2531	>	checkIncomplete(h1);
2532	>	rs[0].assertNotInvoked();
2533	>	rs[1].assertNotInvoked();
2534	>	f.complete(v1);
2535	>	checkCompletedNormally(h0, null);
2536	>	checkCompletedNormally(h1, null);
2537	>	rs[0].assertValue(v1);
2538	>	rs[1].assertValue(v1);
2539	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2540	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2541	>	checkCompletedNormally(h2, null);
2542	>	checkCompletedNormally(h3, null);
2543	>	rs[2].assertValue(v1);
2544	>	rs[3].assertValue(v1);
2545	>	g.complete(v2);
2546	>
2547	>	// unspecified behavior - both source completions available
2548	>	final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2549	>	final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2550	>	checkCompletedNormally(h4, null);
2551	>	checkCompletedNormally(h5, null);
2552	>	assertTrue(Objects.equals(v1, rs[4].value) ||
2553	>	Objects.equals(v2, rs[4].value));
2554	>	assertTrue(Objects.equals(v1, rs[5].value) ||
2555	>	Objects.equals(v2, rs[5].value));
2556	>
2557	>	checkCompletedNormally(f, v1);
2558	>	checkCompletedNormally(g, v2);
2559	>	checkCompletedNormally(h0, null);
2560	>	checkCompletedNormally(h1, null);
2561	>	checkCompletedNormally(h2, null);
2562	>	checkCompletedNormally(h3, null);
2563	>	for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2564	>	}}
2565
2566		/**
2567	<	* thenCombineAsync result completes exceptionally after exceptional
2567	>	* acceptEither result completes exceptionally after exceptional
2568		* completion of either source
2569		*/
2570	<	public void testThenCombineAsync2E() {
2571	<	CompletableFuture<Integer> f, g, h;
2572	<	ThreadExecutor e = new ThreadExecutor();
2573	<	int count = 0;
2574	<
2575	<	f = new CompletableFuture<>();
2576	<	g = new CompletableFuture<>();
2577	<	h = f.thenCombineAsync(g, subtract, e);
2578	<	f.completeExceptionally(new CFException());
2579	<	checkIncomplete(h);
2580	<	g.complete(1);
2581	<	checkCompletedWithWrappedCFException(h);
2582	<
2583	<	f = new CompletableFuture<>();
2584	<	g = new CompletableFuture<>();
2585	<	h = f.thenCombineAsync(g, subtract, e);
2586	<	g.completeExceptionally(new CFException());
2587	<	checkIncomplete(h);
2588	<	f.complete(3);
2589	<	checkCompletedWithWrappedCFException(h);
2590	<
2591	<	f = new CompletableFuture<>();
2592	<	g = new CompletableFuture<>();
2593	<	g.completeExceptionally(new CFException());
2594	<	h = f.thenCombineAsync(g, subtract, e);
2595	<	checkIncomplete(h);
2596	<	f.complete(3);
2597	<	checkCompletedWithWrappedCFException(h);
2598	<
2599	<	assertEquals(0, e.count.get());
2600	<	}
2601	<
2602	<	/**
2603	<	* thenCombineAsync result completes exceptionally if action does
2604	<	*/
2605	<	public void testThenCombineAsync3E() {
2606	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2607	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2608	<	FailingBiFunction r = new FailingBiFunction();
2609	<	CompletableFuture<Integer> g = f.thenCombineAsync(f2, r, new ThreadExecutor());
2610	<	f.complete(one);
2611	<	checkIncomplete(g);
2612	<	assertFalse(r.ran);
2315	<	f2.complete(two);
2316	<	checkCompletedWithWrappedCFException(g);
2317	<	assertTrue(r.ran);
2318	<	}
2319	<
2320	<	/**
2321	<	* thenCombineAsync result completes exceptionally if either source cancelled
2322	<	*/
2323	<	public void testThenCombineAsync4E() {
2324	<	CompletableFuture<Integer> f, g, h;
2325	<	ThreadExecutor e = new ThreadExecutor();
2326	<
2327	<	f = new CompletableFuture<>();
2328	<	g = new CompletableFuture<>();
2329	<	h = f.thenCombineAsync(g, subtract, e);
2330	<	assertTrue(f.cancel(true));
2331	<	checkIncomplete(h);
2332	<	g.complete(1);
2333	<	checkCompletedWithWrappedCancellationException(h);
2334	<
2335	<	f = new CompletableFuture<>();
2336	<	g = new CompletableFuture<>();
2337	<	h = f.thenCombineAsync(g, subtract, e);
2338	<	assertTrue(g.cancel(true));
2339	<	checkIncomplete(h);
2340	<	f.complete(3);
2341	<	checkCompletedWithWrappedCancellationException(h);
2342	<
2343	<	f = new CompletableFuture<>();
2344	<	g = new CompletableFuture<>();
2345	<	assertTrue(g.cancel(true));
2346	<	h = f.thenCombineAsync(g, subtract, e);
2347	<	checkIncomplete(h);
2348	<	f.complete(3);
2349	<	checkCompletedWithWrappedCancellationException(h);
2350	<
2351	<	f = new CompletableFuture<>();
2352	<	g = new CompletableFuture<>();
2353	<	assertTrue(f.cancel(true));
2354	<	assertTrue(g.cancel(true));
2355	<	h = f.thenCombineAsync(g, subtract, e);
2356	<	checkCompletedWithWrappedCancellationException(h);
2357	<
2358	<	assertEquals(0, e.count.get());
2359	<	}
2360	<
2361	<	/**
2362	<	* thenAcceptBothAsync result completes normally after normal
2363	<	* completion of sources
2364	<	*/
2365	<	public void testThenAcceptBothAsyncE() {
2366	<	CompletableFuture<Integer> f, g;
2367	<	CompletableFuture<Void> h;
2368	<	SubtractAction r;
2369	<	ThreadExecutor e = new ThreadExecutor();
2370	<
2371	<	f = new CompletableFuture<>();
2372	<	g = new CompletableFuture<>();
2373	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2374	<	f.complete(3);
2375	<	checkIncomplete(h);
2376	<	g.complete(1);
2377	<	checkCompletedNormally(h, null);
2378	<	assertEquals(r.value, 2);
2379	<
2380	<	f = new CompletableFuture<>();
2381	<	g = new CompletableFuture<>();
2382	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2383	<	g.complete(1);
2384	<	checkIncomplete(h);
2385	<	f.complete(3);
2386	<	checkCompletedNormally(h, null);
2387	<	assertEquals(r.value, 2);
2388	<
2389	<	f = new CompletableFuture<>();
2390	<	g = new CompletableFuture<>();
2391	<	g.complete(1);
2392	<	f.complete(3);
2393	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2394	<	checkCompletedNormally(h, null);
2395	<	assertEquals(r.value, 2);
2396	<
2397	<	assertEquals(3, e.count.get());
2398	<	}
2399	<
2400	<	/**
2401	<	* thenAcceptBothAsync result completes exceptionally after exceptional
2402	<	* completion of source
2403	<	*/
2404	<	public void testThenAcceptBothAsync2E() {
2405	<	CompletableFuture<Integer> f, g;
2406	<	CompletableFuture<Void> h;
2407	<	SubtractAction r;
2408	<	ThreadExecutor e = new ThreadExecutor();
2409	<
2410	<	f = new CompletableFuture<>();
2411	<	g = new CompletableFuture<>();
2412	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2413	<	f.completeExceptionally(new CFException());
2414	<	checkIncomplete(h);
2415	<	g.complete(1);
2416	<	checkCompletedWithWrappedCFException(h);
2417	<
2418	<	f = new CompletableFuture<>();
2419	<	g = new CompletableFuture<>();
2420	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2421	<	g.completeExceptionally(new CFException());
2422	<	checkIncomplete(h);
2423	<	f.complete(3);
2424	<	checkCompletedWithWrappedCFException(h);
2425	<
2426	<	f = new CompletableFuture<>();
2427	<	g = new CompletableFuture<>();
2428	<	f.complete(3);
2429	<	g.completeExceptionally(new CFException());
2430	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2431	<	checkCompletedWithWrappedCFException(h);
2432	<
2433	<	f = new CompletableFuture<>();
2434	<	g = new CompletableFuture<>();
2435	<	f.completeExceptionally(new CFException());
2436	<	g.complete(3);
2437	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2438	<	checkCompletedWithWrappedCFException(h);
2439	<
2440	<	assertEquals(0, e.count.get());
2441	<	}
2442	<
2443	<	/**
2444	<	* thenAcceptBothAsync result completes exceptionally if action does
2445	<	*/
2446	<	public void testThenAcceptBothAsync3E() {
2447	<	CompletableFuture<Integer> f, g;
2448	<	CompletableFuture<Void> h;
2449	<	FailingBiConsumer r;
2450	<	ThreadExecutor e = new ThreadExecutor();
2570	>	public void testAcceptEither_exceptionalCompletion() {
2571	>	for (ExecutionMode m : ExecutionMode.values())
2572	>	for (Integer v1 : new Integer[] { 1, null })
2573	>	{
2574	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2575	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2576	>	final CFException ex = new CFException();
2577	>	final NoopConsumer[] rs = new NoopConsumer[6];
2578	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2579	>
2580	>	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2581	>	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2582	>	checkIncomplete(h0);
2583	>	checkIncomplete(h1);
2584	>	rs[0].assertNotInvoked();
2585	>	rs[1].assertNotInvoked();
2586	>	f.completeExceptionally(ex);
2587	>	checkCompletedWithWrappedException(h0, ex);
2588	>	checkCompletedWithWrappedException(h1, ex);
2589	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2590	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2591	>	checkCompletedWithWrappedException(h2, ex);
2592	>	checkCompletedWithWrappedException(h3, ex);
2593	>
2594	>	g.complete(v1);
2595	>
2596	>	// unspecified behavior - both source completions available
2597	>	final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2598	>	final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2599	>	try {
2600	>	assertNull(h4.join());
2601	>	rs[4].assertValue(v1);
2602	>	} catch (CompletionException ok) {
2603	>	checkCompletedWithWrappedException(h4, ex);
2604	>	rs[4].assertNotInvoked();
2605	>	}
2606	>	try {
2607	>	assertNull(h5.join());
2608	>	rs[5].assertValue(v1);
2609	>	} catch (CompletionException ok) {
2610	>	checkCompletedWithWrappedException(h5, ex);
2611	>	rs[5].assertNotInvoked();
2612	>	}
2613
2614	<	f = new CompletableFuture<>();
2615	<	g = new CompletableFuture<>();
2616	<	h = f.thenAcceptBothAsync(g, r = new FailingBiConsumer(), e);
2617	<	f.complete(3);
2618	<	checkIncomplete(h);
2619	<	g.complete(1);
2620	<	checkCompletedWithWrappedCFException(h);
2614	>	checkCompletedExceptionally(f, ex);
2615	>	checkCompletedNormally(g, v1);
2616	>	checkCompletedWithWrappedException(h0, ex);
2617	>	checkCompletedWithWrappedException(h1, ex);
2618	>	checkCompletedWithWrappedException(h2, ex);
2619	>	checkCompletedWithWrappedException(h3, ex);
2620	>	checkCompletedWithWrappedException(h4, ex);
2621	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2622	>	}}
2623	>
2624	>	public void testAcceptEither_exceptionalCompletion2() {
2625	>	for (ExecutionMode m : ExecutionMode.values())
2626	>	for (boolean fFirst : new boolean[] { true, false })
2627	>	for (Integer v1 : new Integer[] { 1, null })
2628	>	{
2629	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2630	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2631	>	final CFException ex = new CFException();
2632	>	final NoopConsumer[] rs = new NoopConsumer[6];
2633	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2634	>
2635	>	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2636	>	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2637	>	assertTrue(fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2638	>	assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2639	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2640	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2641
2642	<	f = new CompletableFuture<>();
2643	<	g = new CompletableFuture<>();
2644	<	f.complete(3);
2645	<	g.complete(1);
2646	<	h = f.thenAcceptBothAsync(g, r = new FailingBiConsumer(), e);
2647	<	checkCompletedWithWrappedCFException(h);
2642	>	// unspecified behavior - both source completions available
2643	>	try {
2644	>	assertNull(h0.join());
2645	>	rs[0].assertValue(v1);
2646	>	} catch (CompletionException ok) {
2647	>	checkCompletedWithWrappedException(h0, ex);
2648	>	rs[0].assertNotInvoked();
2649	>	}
2650	>	try {
2651	>	assertNull(h1.join());
2652	>	rs[1].assertValue(v1);
2653	>	} catch (CompletionException ok) {
2654	>	checkCompletedWithWrappedException(h1, ex);
2655	>	rs[1].assertNotInvoked();
2656	>	}
2657	>	try {
2658	>	assertNull(h2.join());
2659	>	rs[2].assertValue(v1);
2660	>	} catch (CompletionException ok) {
2661	>	checkCompletedWithWrappedException(h2, ex);
2662	>	rs[2].assertNotInvoked();
2663	>	}
2664	>	try {
2665	>	assertNull(h3.join());
2666	>	rs[3].assertValue(v1);
2667	>	} catch (CompletionException ok) {
2668	>	checkCompletedWithWrappedException(h3, ex);
2669	>	rs[3].assertNotInvoked();
2670	>	}
2671
2672	<	assertEquals(2, e.count.get());
2673	<	}
2672	>	checkCompletedNormally(f, v1);
2673	>	checkCompletedExceptionally(g, ex);
2674	>	}}
2675
2676		/**
2677	<	* thenAcceptBothAsync result completes exceptionally if either source cancelled
2677	>	* acceptEither result completes exceptionally if either source cancelled
2678		*/
2679	<	public void testThenAcceptBothAsync4E() {
2680	<	CompletableFuture<Integer> f, g;
2681	<	CompletableFuture<Void> h;
2682	<	SubtractAction r;
2683	<	ThreadExecutor e = new ThreadExecutor();
2684	<
2685	<	f = new CompletableFuture<>();
2686	<	g = new CompletableFuture<>();
2687	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2688	<	assertTrue(f.cancel(true));
2689	<	checkIncomplete(h);
2690	<	g.complete(1);
2691	<	checkCompletedWithWrappedCancellationException(h);
2692	<
2693	<	f = new CompletableFuture<>();
2694	<	g = new CompletableFuture<>();
2695	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2696	<	assertTrue(g.cancel(true));
2697	<	checkIncomplete(h);
2698	<	f.complete(3);
2699	<	checkCompletedWithWrappedCancellationException(h);
2700	<
2701	<	f = new CompletableFuture<>();
2702	<	g = new CompletableFuture<>();
2703	<	f.complete(3);
2704	<	assertTrue(g.cancel(true));
2705	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2706	<	checkCompletedWithWrappedCancellationException(h);
2707	<
2708	<	f = new CompletableFuture<>();
2709	<	g = new CompletableFuture<>();
2710	<	assertTrue(f.cancel(true));
2711	<	g.complete(3);
2712	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2713	<	checkCompletedWithWrappedCancellationException(h);
2714	<
2715	<	assertEquals(0, e.count.get());
2716	<	}
2679	>	public void testAcceptEither_sourceCancelled() {
2680	>	for (ExecutionMode m : ExecutionMode.values())
2681	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2682	>	for (Integer v1 : new Integer[] { 1, null })
2683	>	{
2684	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2685	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2686	>	final NoopConsumer[] rs = new NoopConsumer[6];
2687	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2688	>
2689	>	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2690	>	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2691	>	checkIncomplete(h0);
2692	>	checkIncomplete(h1);
2693	>	rs[0].assertNotInvoked();
2694	>	rs[1].assertNotInvoked();
2695	>	f.cancel(mayInterruptIfRunning);
2696	>	checkCompletedWithWrappedCancellationException(h0);
2697	>	checkCompletedWithWrappedCancellationException(h1);
2698	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2699	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2700	>	checkCompletedWithWrappedCancellationException(h2);
2701	>	checkCompletedWithWrappedCancellationException(h3);
2702	>
2703	>	g.complete(v1);
2704	>
2705	>	// unspecified behavior - both source completions available
2706	>	final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2707	>	final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2708	>	try {
2709	>	assertNull(h4.join());
2710	>	rs[4].assertValue(v1);
2711	>	} catch (CompletionException ok) {
2712	>	checkCompletedWithWrappedCancellationException(h4);
2713	>	rs[4].assertNotInvoked();
2714	>	}
2715	>	try {
2716	>	assertNull(h5.join());
2717	>	rs[5].assertValue(v1);
2718	>	} catch (CompletionException ok) {
2719	>	checkCompletedWithWrappedCancellationException(h5);
2720	>	rs[5].assertNotInvoked();
2721	>	}
2722
2723	<	/**
2724	<	* runAfterBothAsync result completes normally after normal
2725	<	* completion of sources
2726	<	*/
2727	<	public void testRunAfterBothAsyncE() {
2728	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2729	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2730	<	Noop r = new Noop();
2520	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
2521	<	f.complete(one);
2522	<	checkIncomplete(g);
2523	<	f2.complete(two);
2524	<	checkCompletedNormally(g, null);
2525	<	assertTrue(r.ran);
2526	<	}
2723	>	checkCancelled(f);
2724	>	checkCompletedNormally(g, v1);
2725	>	checkCompletedWithWrappedCancellationException(h0);
2726	>	checkCompletedWithWrappedCancellationException(h1);
2727	>	checkCompletedWithWrappedCancellationException(h2);
2728	>	checkCompletedWithWrappedCancellationException(h3);
2729	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2730	>	}}
2731
2732		/**
2733	<	* runAfterBothAsync result completes exceptionally after exceptional
2530	<	* completion of source
2733	>	* acceptEither result completes exceptionally if action does
2734		*/
2735	<	public void testRunAfterBothAsync2E() {
2736	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2737	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2738	<	Noop r = new Noop();
2739	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
2740	<	f.completeExceptionally(new CFException());
2741	<	f2.complete(two);
2742	<	checkCompletedWithWrappedCFException(g);
2743	<
2744	<	r = new Noop();
2745	<	f = new CompletableFuture<>();
2746	<	f2 = new CompletableFuture<>();
2747	<	g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
2748	<	f.complete(one);
2749	<	f2.completeExceptionally(new CFException());
2750	<	checkCompletedWithWrappedCFException(g);
2751	<	}
2735	>	public void testAcceptEither_actionFailed() {
2736	>	for (ExecutionMode m : ExecutionMode.values())
2737	>	for (Integer v1 : new Integer[] { 1, null })
2738	>	for (Integer v2 : new Integer[] { 2, null })
2739	>	{
2740	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2741	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2742	>	final FailingConsumer[] rs = new FailingConsumer[6];
2743	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingConsumer(m);
2744	>
2745	>	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2746	>	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2747	>	f.complete(v1);
2748	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2749	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2750	>	checkCompletedWithWrappedException(h0, rs[0].ex);
2751	>	checkCompletedWithWrappedException(h1, rs[1].ex);
2752	>	checkCompletedWithWrappedException(h2, rs[2].ex);
2753	>	checkCompletedWithWrappedException(h3, rs[3].ex);
2754	>	for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2755	>
2756	>	g.complete(v2);
2757	>
2758	>	// unspecified behavior - both source completions available
2759	>	final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2760	>	final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2761	>
2762	>	checkCompletedWithWrappedException(h4, rs[4].ex);
2763	>	assertTrue(Objects.equals(v1, rs[4].value) ||
2764	>	Objects.equals(v2, rs[4].value));
2765	>	checkCompletedWithWrappedException(h5, rs[5].ex);
2766	>	assertTrue(Objects.equals(v1, rs[5].value) ||
2767	>	Objects.equals(v2, rs[5].value));
2768	>
2769	>	checkCompletedNormally(f, v1);
2770	>	checkCompletedNormally(g, v2);
2771	>	}}
2772
2773		/**
2774	<	* runAfterBothAsync result completes exceptionally if action does
2774	>	* runAfterEither result completes normally after normal completion
2775	>	* of either source
2776		*/
2777	<	public void testRunAfterBothAsync3E() {
2778	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2779	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2780	<	FailingNoop r = new FailingNoop();
2781	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
2782	<	f.complete(one);
2783	<	checkIncomplete(g);
2784	<	f2.complete(two);
2785	<	checkCompletedWithWrappedCFException(g);
2786	<	}
2777	>	public void testRunAfterEither_normalCompletion() {
2778	>	for (ExecutionMode m : ExecutionMode.values())
2779	>	for (Integer v1 : new Integer[] { 1, null })
2780	>	for (Integer v2 : new Integer[] { 2, null })
2781	>	for (boolean pushNop : new boolean[] { true, false })
2782	>	{
2783	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2784	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2785	>	final Noop[] rs = new Noop[6];
2786	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2787	>
2788	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2789	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2790	>	checkIncomplete(h0);
2791	>	checkIncomplete(h1);
2792	>	rs[0].assertNotInvoked();
2793	>	rs[1].assertNotInvoked();
2794	>	if (pushNop) {          // ad hoc test of intra-completion interference
2795	>	m.thenRun(f, () -> {});
2796	>	m.thenRun(g, () -> {});
2797	>	}
2798	>	f.complete(v1);
2799	>	checkCompletedNormally(h0, null);
2800	>	checkCompletedNormally(h1, null);
2801	>	rs[0].assertInvoked();
2802	>	rs[1].assertInvoked();
2803	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2804	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2805	>	checkCompletedNormally(h2, null);
2806	>	checkCompletedNormally(h3, null);
2807	>	rs[2].assertInvoked();
2808	>	rs[3].assertInvoked();
2809	>
2810	>	g.complete(v2);
2811	>
2812	>	final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2813	>	final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2814	>
2815	>	checkCompletedNormally(f, v1);
2816	>	checkCompletedNormally(g, v2);
2817	>	checkCompletedNormally(h0, null);
2818	>	checkCompletedNormally(h1, null);
2819	>	checkCompletedNormally(h2, null);
2820	>	checkCompletedNormally(h3, null);
2821	>	checkCompletedNormally(h4, null);
2822	>	checkCompletedNormally(h5, null);
2823	>	for (int i = 0; i < 6; i++) rs[i].assertInvoked();
2824	>	}}
2825
2826		/**
2827	<	* runAfterBothAsync result completes exceptionally if either source cancelled
2827	>	* runAfterEither result completes exceptionally after exceptional
2828	>	* completion of either source
2829		*/
2830	<	public void testRunAfterBothAsync4E() {
2831	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2832	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2833	<	Noop r = new Noop();
2834	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
2835	<	assertTrue(f.cancel(true));
2836	<	f2.complete(two);
2837	<	checkCompletedWithWrappedCancellationException(g);
2830	>	public void testRunAfterEither_exceptionalCompletion() {
2831	>	for (ExecutionMode m : ExecutionMode.values())
2832	>	for (Integer v1 : new Integer[] { 1, null })
2833	>	{
2834	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2835	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2836	>	final CFException ex = new CFException();
2837	>	final Noop[] rs = new Noop[6];
2838	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2839	>
2840	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2841	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2842	>	checkIncomplete(h0);
2843	>	checkIncomplete(h1);
2844	>	rs[0].assertNotInvoked();
2845	>	rs[1].assertNotInvoked();
2846	>	assertTrue(f.completeExceptionally(ex));
2847	>	checkCompletedWithWrappedException(h0, ex);
2848	>	checkCompletedWithWrappedException(h1, ex);
2849	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2850	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2851	>	checkCompletedWithWrappedException(h2, ex);
2852	>	checkCompletedWithWrappedException(h3, ex);
2853	>
2854	>	assertTrue(g.complete(v1));
2855	>
2856	>	// unspecified behavior - both source completions available
2857	>	final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2858	>	final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2859	>	try {
2860	>	assertNull(h4.join());
2861	>	rs[4].assertInvoked();
2862	>	} catch (CompletionException ok) {
2863	>	checkCompletedWithWrappedException(h4, ex);
2864	>	rs[4].assertNotInvoked();
2865	>	}
2866	>	try {
2867	>	assertNull(h5.join());
2868	>	rs[5].assertInvoked();
2869	>	} catch (CompletionException ok) {
2870	>	checkCompletedWithWrappedException(h5, ex);
2871	>	rs[5].assertNotInvoked();
2872	>	}
2873
2874	<	r = new Noop();
2875	<	f = new CompletableFuture<>();
2876	<	f2 = new CompletableFuture<>();
2877	<	g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
2878	<	f.complete(one);
2879	<	assertTrue(f2.cancel(true));
2880	<	checkCompletedWithWrappedCancellationException(g);
2881	<	}
2874	>	checkCompletedExceptionally(f, ex);
2875	>	checkCompletedNormally(g, v1);
2876	>	checkCompletedWithWrappedException(h0, ex);
2877	>	checkCompletedWithWrappedException(h1, ex);
2878	>	checkCompletedWithWrappedException(h2, ex);
2879	>	checkCompletedWithWrappedException(h3, ex);
2880	>	checkCompletedWithWrappedException(h4, ex);
2881	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2882	>	}}
2883	>
2884	>	public void testRunAfterEither_exceptionalCompletion2() {
2885	>	for (ExecutionMode m : ExecutionMode.values())
2886	>	for (boolean fFirst : new boolean[] { true, false })
2887	>	for (Integer v1 : new Integer[] { 1, null })
2888	>	{
2889	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2890	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2891	>	final CFException ex = new CFException();
2892	>	final Noop[] rs = new Noop[6];
2893	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2894	>
2895	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2896	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2897	>	assertTrue( fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2898	>	assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2899	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2900	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2901
2902	<	/**
2903	<	* applyToEitherAsync result completes normally after normal
2904	<	* completion of sources
2905	<	*/
2906	<	public void testApplyToEitherAsyncE() {
2907	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2908	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2909	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
2910	<	f.complete(one);
2911	<	checkCompletedNormally(g, two);
2902	>	// unspecified behavior - both source completions available
2903	>	try {
2904	>	assertNull(h0.join());
2905	>	rs[0].assertInvoked();
2906	>	} catch (CompletionException ok) {
2907	>	checkCompletedWithWrappedException(h0, ex);
2908	>	rs[0].assertNotInvoked();
2909	>	}
2910	>	try {
2911	>	assertNull(h1.join());
2912	>	rs[1].assertInvoked();
2913	>	} catch (CompletionException ok) {
2914	>	checkCompletedWithWrappedException(h1, ex);
2915	>	rs[1].assertNotInvoked();
2916	>	}
2917	>	try {
2918	>	assertNull(h2.join());
2919	>	rs[2].assertInvoked();
2920	>	} catch (CompletionException ok) {
2921	>	checkCompletedWithWrappedException(h2, ex);
2922	>	rs[2].assertNotInvoked();
2923	>	}
2924	>	try {
2925	>	assertNull(h3.join());
2926	>	rs[3].assertInvoked();
2927	>	} catch (CompletionException ok) {
2928	>	checkCompletedWithWrappedException(h3, ex);
2929	>	rs[3].assertNotInvoked();
2930	>	}
2931
2932	<	f = new CompletableFuture<>();
2933	<	f.complete(one);
2934	<	f2 = new CompletableFuture<>();
2599	<	g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
2600	<	checkCompletedNormally(g, two);
2601	<	}
2932	>	checkCompletedNormally(f, v1);
2933	>	checkCompletedExceptionally(g, ex);
2934	>	}}
2935
2936		/**
2937	<	* applyToEitherAsync result completes exceptionally after exceptional
2605	<	* completion of source
2937	>	* runAfterEither result completes exceptionally if either source cancelled
2938		*/
2939	<	public void testApplyToEitherAsync2E() {
2940	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2941	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2942	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
2943	<	f.completeExceptionally(new CFException());
2944	<	checkCompletedWithWrappedCFException(g);
2945	<
2946	<	f = new CompletableFuture<>();
2947	<	f2 = new CompletableFuture<>();
2948	<	f2.completeExceptionally(new CFException());
2949	<	g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
2950	<	f.complete(one);
2951	<	checkCompletedWithWrappedCFException(g);
2952	<	}
2939	>	public void testRunAfterEither_sourceCancelled() {
2940	>	for (ExecutionMode m : ExecutionMode.values())
2941	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2942	>	for (Integer v1 : new Integer[] { 1, null })
2943	>	{
2944	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2945	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2946	>	final Noop[] rs = new Noop[6];
2947	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2948	>
2949	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2950	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2951	>	checkIncomplete(h0);
2952	>	checkIncomplete(h1);
2953	>	rs[0].assertNotInvoked();
2954	>	rs[1].assertNotInvoked();
2955	>	f.cancel(mayInterruptIfRunning);
2956	>	checkCompletedWithWrappedCancellationException(h0);
2957	>	checkCompletedWithWrappedCancellationException(h1);
2958	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2959	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2960	>	checkCompletedWithWrappedCancellationException(h2);
2961	>	checkCompletedWithWrappedCancellationException(h3);
2962	>
2963	>	assertTrue(g.complete(v1));
2964	>
2965	>	// unspecified behavior - both source completions available
2966	>	final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2967	>	final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2968	>	try {
2969	>	assertNull(h4.join());
2970	>	rs[4].assertInvoked();
2971	>	} catch (CompletionException ok) {
2972	>	checkCompletedWithWrappedCancellationException(h4);
2973	>	rs[4].assertNotInvoked();
2974	>	}
2975	>	try {
2976	>	assertNull(h5.join());
2977	>	rs[5].assertInvoked();
2978	>	} catch (CompletionException ok) {
2979	>	checkCompletedWithWrappedCancellationException(h5);
2980	>	rs[5].assertNotInvoked();
2981	>	}
2982
2983	<	/**
2984	<	* applyToEitherAsync result completes exceptionally if action does
2985	<	*/
2986	<	public void testApplyToEitherAsync3E() {
2987	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2988	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2989	<	FailingFunction r = new FailingFunction();
2990	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, r, new ThreadExecutor());
2630	<	f.complete(one);
2631	<	checkCompletedWithWrappedCFException(g);
2632	<	}
2983	>	checkCancelled(f);
2984	>	checkCompletedNormally(g, v1);
2985	>	checkCompletedWithWrappedCancellationException(h0);
2986	>	checkCompletedWithWrappedCancellationException(h1);
2987	>	checkCompletedWithWrappedCancellationException(h2);
2988	>	checkCompletedWithWrappedCancellationException(h3);
2989	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2990	>	}}
2991
2992		/**
2993	<	* applyToEitherAsync result completes exceptionally if either source cancelled
2993	>	* runAfterEither result completes exceptionally if action does
2994		*/
2995	<	public void testApplyToEitherAsync4E() {
2996	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2997	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2998	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
2999	<	assertTrue(f.cancel(true));
3000	<	checkCompletedWithWrappedCancellationException(g);
3001	<
3002	<	f = new CompletableFuture<>();
3003	<	f2 = new CompletableFuture<>();
3004	<	assertTrue(f2.cancel(true));
3005	<	g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
3006	<	checkCompletedWithWrappedCancellationException(g);
3007	<	}
2995	>	public void testRunAfterEither_actionFailed() {
2996	>	for (ExecutionMode m : ExecutionMode.values())
2997	>	for (Integer v1 : new Integer[] { 1, null })
2998	>	for (Integer v2 : new Integer[] { 2, null })
2999	>	{
3000	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
3001	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
3002	>	final FailingRunnable[] rs = new FailingRunnable[6];
3003	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingRunnable(m);
3004	>
3005	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
3006	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
3007	>	assertTrue(f.complete(v1));
3008	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
3009	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
3010	>	checkCompletedWithWrappedException(h0, rs[0].ex);
3011	>	checkCompletedWithWrappedException(h1, rs[1].ex);
3012	>	checkCompletedWithWrappedException(h2, rs[2].ex);
3013	>	checkCompletedWithWrappedException(h3, rs[3].ex);
3014	>	for (int i = 0; i < 4; i++) rs[i].assertInvoked();
3015	>	assertTrue(g.complete(v2));
3016	>	final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
3017	>	final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
3018	>	checkCompletedWithWrappedException(h4, rs[4].ex);
3019	>	checkCompletedWithWrappedException(h5, rs[5].ex);
3020	>
3021	>	checkCompletedNormally(f, v1);
3022	>	checkCompletedNormally(g, v2);
3023	>	for (int i = 0; i < 6; i++) rs[i].assertInvoked();
3024	>	}}
3025
3026		/**
3027	<	* acceptEitherAsync result completes normally after normal
2653	<	* completion of sources
3027	>	* thenCompose result completes normally after normal completion of source
3028		*/
3029	<	public void testAcceptEitherAsyncE() {
3030	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3031	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3032	<	IncAction r = new IncAction();
3033	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
3034	<	f.complete(one);
3035	<	checkCompletedNormally(g, null);
3036	<	assertEquals(r.value, 2);
3037	<
3038	<	r = new IncAction();
3039	<	f = new CompletableFuture<>();
3040	<	f.complete(one);
3041	<	f2 = new CompletableFuture<>();
3042	<	g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
3043	<	checkCompletedNormally(g, null);
2670	<	assertEquals(r.value, 2);
2671	<	}
3029	>	public void testThenCompose_normalCompletion() {
3030	>	for (ExecutionMode m : ExecutionMode.values())
3031	>	for (boolean createIncomplete : new boolean[] { true, false })
3032	>	for (Integer v1 : new Integer[] { 1, null })
3033	>	{
3034	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
3035	>	final CompletableFutureInc r = new CompletableFutureInc(m);
3036	>	if (!createIncomplete) assertTrue(f.complete(v1));
3037	>	final CompletableFuture<Integer> g = m.thenCompose(f, r);
3038	>	if (createIncomplete) assertTrue(f.complete(v1));
3039	>
3040	>	checkCompletedNormally(g, inc(v1));
3041	>	checkCompletedNormally(f, v1);
3042	>	r.assertValue(v1);
3043	>	}}
3044
3045		/**
3046	<	* acceptEitherAsync result completes exceptionally after exceptional
3046	>	* thenCompose result completes exceptionally after exceptional
3047		* completion of source
3048		*/
3049	<	public void testAcceptEitherAsync2E() {
3050	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3051	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3052	<	IncAction r = new IncAction();
3053	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
3054	<	f.completeExceptionally(new CFException());
3055	<	checkCompletedWithWrappedCFException(g);
3056	<
3057	<	r = new IncAction();
3058	<	f = new CompletableFuture<>();
3059	<	f2 = new CompletableFuture<>();
3060	<	f2.completeExceptionally(new CFException());
3061	<	g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
3062	<	f.complete(one);
3063	<	checkCompletedWithWrappedCFException(g);
2692	<	}
3049	>	public void testThenCompose_exceptionalCompletion() {
3050	>	for (ExecutionMode m : ExecutionMode.values())
3051	>	for (boolean createIncomplete : new boolean[] { true, false })
3052	>	{
3053	>	final CFException ex = new CFException();
3054	>	final CompletableFutureInc r = new CompletableFutureInc(m);
3055	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
3056	>	if (!createIncomplete) f.completeExceptionally(ex);
3057	>	final CompletableFuture<Integer> g = m.thenCompose(f, r);
3058	>	if (createIncomplete) f.completeExceptionally(ex);
3059	>
3060	>	checkCompletedWithWrappedException(g, ex);
3061	>	checkCompletedExceptionally(f, ex);
3062	>	r.assertNotInvoked();
3063	>	}}
3064
3065		/**
3066	<	* acceptEitherAsync result completes exceptionally if action does
3066	>	* thenCompose result completes exceptionally if action does
3067		*/
3068	<	public void testAcceptEitherAsync3E() {
3069	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3070	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3071	<	FailingConsumer r = new FailingConsumer();
3072	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
3073	<	f.complete(one);
3074	<	checkCompletedWithWrappedCFException(g);
3075	<	}
3068	>	public void testThenCompose_actionFailed() {
3069	>	for (ExecutionMode m : ExecutionMode.values())
3070	>	for (boolean createIncomplete : new boolean[] { true, false })
3071	>	for (Integer v1 : new Integer[] { 1, null })
3072	>	{
3073	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
3074	>	final FailingCompletableFutureFunction r
3075	>	= new FailingCompletableFutureFunction(m);
3076	>	if (!createIncomplete) assertTrue(f.complete(v1));
3077	>	final CompletableFuture<Integer> g = m.thenCompose(f, r);
3078	>	if (createIncomplete) assertTrue(f.complete(v1));
3079	>
3080	>	checkCompletedWithWrappedException(g, r.ex);
3081	>	checkCompletedNormally(f, v1);
3082	>	}}
3083
3084		/**
3085	<	* acceptEitherAsync result completes exceptionally if either
2708	<	* source cancelled
3085	>	* thenCompose result completes exceptionally if source cancelled
3086		*/
3087	<	public void testAcceptEitherAsync4E() {
3088	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3089	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3090	<	IncAction r = new IncAction();
3091	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
3092	<	assertTrue(f.cancel(true));
3093	<	checkCompletedWithWrappedCancellationException(g);
3087	>	public void testThenCompose_sourceCancelled() {
3088	>	for (ExecutionMode m : ExecutionMode.values())
3089	>	for (boolean createIncomplete : new boolean[] { true, false })
3090	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3091	>	{
3092	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
3093	>	final CompletableFutureInc r = new CompletableFutureInc(m);
3094	>	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
3095	>	final CompletableFuture<Integer> g = m.thenCompose(f, r);
3096	>	if (createIncomplete) {
3097	>	checkIncomplete(g);
3098	>	assertTrue(f.cancel(mayInterruptIfRunning));
3099	>	}
3100
2718	–	r = new IncAction();
2719	–	f = new CompletableFuture<>();
2720	–	f2 = new CompletableFuture<>();
2721	–	assertTrue(f2.cancel(true));
2722	–	g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
3101		checkCompletedWithWrappedCancellationException(g);
3102	<	}
3102	>	checkCancelled(f);
3103	>	}}
3104
3105		/**
3106	<	* runAfterEitherAsync result completes normally after normal
2728	<	* completion of sources
3106	>	* thenCompose result completes exceptionally if the result of the action does
3107		*/
3108	<	public void testRunAfterEitherAsyncE() {
3109	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3110	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3111	<	Noop r = new Noop();
3112	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
3113	<	f.complete(one);
3114	<	checkCompletedNormally(g, null);
3115	<	assertTrue(r.ran);
3108	>	public void testThenCompose_actionReturnsFailingFuture() {
3109	>	for (ExecutionMode m : ExecutionMode.values())
3110	>	for (int order = 0; order < 6; order++)
3111	>	for (Integer v1 : new Integer[] { 1, null })
3112	>	{
3113	>	final CFException ex = new CFException();
3114	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
3115	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
3116	>	final CompletableFuture<Integer> h;
3117	>	// Test all permutations of orders
3118	>	switch (order) {
3119	>	case 0:
3120	>	assertTrue(f.complete(v1));
3121	>	assertTrue(g.completeExceptionally(ex));
3122	>	h = m.thenCompose(f, (x -> g));
3123	>	break;
3124	>	case 1:
3125	>	assertTrue(f.complete(v1));
3126	>	h = m.thenCompose(f, (x -> g));
3127	>	assertTrue(g.completeExceptionally(ex));
3128	>	break;
3129	>	case 2:
3130	>	assertTrue(g.completeExceptionally(ex));
3131	>	assertTrue(f.complete(v1));
3132	>	h = m.thenCompose(f, (x -> g));
3133	>	break;
3134	>	case 3:
3135	>	assertTrue(g.completeExceptionally(ex));
3136	>	h = m.thenCompose(f, (x -> g));
3137	>	assertTrue(f.complete(v1));
3138	>	break;
3139	>	case 4:
3140	>	h = m.thenCompose(f, (x -> g));
3141	>	assertTrue(f.complete(v1));
3142	>	assertTrue(g.completeExceptionally(ex));
3143	>	break;
3144	>	case 5:
3145	>	h = m.thenCompose(f, (x -> g));
3146	>	assertTrue(f.complete(v1));
3147	>	assertTrue(g.completeExceptionally(ex));
3148	>	break;
3149	>	default: throw new AssertionError();
3150	>	}
3151
3152	<	r = new Noop();
3153	<	f = new CompletableFuture<>();
3154	<	f.complete(one);
3155	<	f2 = new CompletableFuture<>();
2743	<	g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2744	<	checkCompletedNormally(g, null);
2745	<	assertTrue(r.ran);
2746	<	}
3152	>	checkCompletedExceptionally(g, ex);
3153	>	checkCompletedWithWrappedException(h, ex);
3154	>	checkCompletedNormally(f, v1);
3155	>	}}
3156
3157		/**
3158	<	* runAfterEitherAsync result completes exceptionally after exceptional
3158	>	* exceptionallyCompose result completes normally after normal
3159		* completion of source
3160		*/
3161	<	public void testRunAfterEitherAsync2E() {
3162	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3163	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3164	<	Noop r = new Noop();
3165	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
3166	<	f.completeExceptionally(new CFException());
3167	<	checkCompletedWithWrappedCFException(g);
3168	<
3169	<	r = new Noop();
3170	<	f = new CompletableFuture<>();
3171	<	f2 = new CompletableFuture<>();
3172	<	f2.completeExceptionally(new CFException());
3173	<	g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
3174	<	f.complete(one);
3175	<	checkCompletedWithWrappedCFException(g);
3176	<	}
2768	<
2769	<	/**
2770	<	* runAfterEitherAsync result completes exceptionally if action does
2771	<	*/
2772	<	public void testRunAfterEitherAsync3E() {
2773	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2774	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2775	<	FailingNoop r = new FailingNoop();
2776	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2777	<	f.complete(one);
2778	<	checkCompletedWithWrappedCFException(g);
2779	<	}
2780	<
2781	<	/**
2782	<	* runAfterEitherAsync result completes exceptionally if either
2783	<	* source cancelled
2784	<	*/
2785	<	public void testRunAfterEitherAsync4E() {
2786	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2787	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2788	<	Noop r = new Noop();
2789	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2790	<	assertTrue(f.cancel(true));
2791	<	checkCompletedWithWrappedCancellationException(g);
2792	<
2793	<	r = new Noop();
2794	<	f = new CompletableFuture<>();
2795	<	f2 = new CompletableFuture<>();
2796	<	assertTrue(f2.cancel(true));
2797	<	g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2798	<	checkCompletedWithWrappedCancellationException(g);
2799	<	}
3161	>	public void testExceptionallyCompose_normalCompletion() {
3162	>	for (ExecutionMode m : ExecutionMode.values())
3163	>	for (boolean createIncomplete : new boolean[] { true, false })
3164	>	for (Integer v1 : new Integer[] { 1, null })
3165	>	{
3166	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
3167	>	final ExceptionalCompletableFutureFunction r =
3168	>	new ExceptionalCompletableFutureFunction(m);
3169	>	if (!createIncomplete) assertTrue(f.complete(v1));
3170	>	final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r);
3171	>	if (createIncomplete) assertTrue(f.complete(v1));
3172	>
3173	>	checkCompletedNormally(f, v1);
3174	>	checkCompletedNormally(g, v1);
3175	>	r.assertNotInvoked();
3176	>	}}
3177
3178		/**
3179	<	* thenComposeAsync result completes normally after normal
3179	>	* exceptionallyCompose result completes normally after exceptional
3180		* completion of source
3181		*/
3182	<	public void testThenComposeAsyncE() {
3183	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3184	<	CompletableFutureInc r = new CompletableFutureInc();
3185	<	CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
3186	<	f.complete(one);
3187	<	checkCompletedNormally(g, two);
3188	<	}
3189	<
3190	<	/**
3191	<	* thenComposeAsync result completes exceptionally after
3192	<	* exceptional completion of source
3193	<	*/
3194	<	public void testThenComposeAsync2E() {
3195	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3196	<	CompletableFutureInc r = new CompletableFutureInc();
3197	<	CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
3198	<	f.completeExceptionally(new CFException());
3199	<	checkCompletedWithWrappedCFException(g);
3200	<	}
3201	<
3202	<	/**
3203	<	* thenComposeAsync result completes exceptionally if action does
3204	<	*/
3205	<	public void testThenComposeAsync3E() {
3206	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3207	<	FailingCompletableFutureFunction r = new FailingCompletableFutureFunction();
3208	<	CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
3209	<	f.complete(one);
3210	<	checkCompletedWithWrappedCFException(g);
3211	<	}
3182	>	public void testExceptionallyCompose_exceptionalCompletion() {
3183	>	for (ExecutionMode m : ExecutionMode.values())
3184	>	for (boolean createIncomplete : new boolean[] { true, false })
3185	>	{
3186	>	final CFException ex = new CFException();
3187	>	final ExceptionalCompletableFutureFunction r =
3188	>	new ExceptionalCompletableFutureFunction(m);
3189	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
3190	>	if (!createIncomplete) f.completeExceptionally(ex);
3191	>	final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r);
3192	>	if (createIncomplete) f.completeExceptionally(ex);
3193	>
3194	>	checkCompletedExceptionally(f, ex);
3195	>	checkCompletedNormally(g, r.value);
3196	>	r.assertInvoked();
3197	>	}}
3198	>
3199	>	/**
3200	>	* exceptionallyCompose completes exceptionally on exception if action does
3201	>	*/
3202	>	public void testExceptionallyCompose_actionFailed() {
3203	>	for (ExecutionMode m : ExecutionMode.values())
3204	>	for (boolean createIncomplete : new boolean[] { true, false })
3205	>	for (Integer v1 : new Integer[] { 1, null })
3206	>	{
3207	>	final CFException ex = new CFException();
3208	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
3209	>	final FailingExceptionalCompletableFutureFunction r
3210	>	= new FailingExceptionalCompletableFutureFunction(m);
3211	>	if (!createIncomplete) f.completeExceptionally(ex);
3212	>	final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r);
3213	>	if (createIncomplete) f.completeExceptionally(ex);
3214	>
3215	>	checkCompletedExceptionally(f, ex);
3216	>	checkCompletedWithWrappedException(g, r.ex);
3217	>	r.assertInvoked();
3218	>	}}
3219
2836	–	/**
2837	–	* thenComposeAsync result completes exceptionally if source cancelled
2838	–	*/
2839	–	public void testThenComposeAsync4E() {
2840	–	CompletableFuture<Integer> f = new CompletableFuture<>();
2841	–	CompletableFutureInc r = new CompletableFutureInc();
2842	–	CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
2843	–	assertTrue(f.cancel(true));
2844	–	checkCompletedWithWrappedCancellationException(g);
2845	–	}
3220
3221		// other static methods
3222
#	Line 2860 | Line 3234 | public class CompletableFutureTest exten
3234		* when all components complete normally
3235		*/
3236		public void testAllOf_normal() throws Exception {
3237	<	for (int k = 1; k < 20; ++k) {
3238	<	CompletableFuture<Integer>[] fs = (CompletableFuture<Integer>[]) new CompletableFuture[k];
3239	<	for (int i = 0; i < k; ++i)
3237	>	for (int k = 1; k < 10; k++) {
3238	>	CompletableFuture<Integer>[] fs
3239	>	= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3240	>	for (int i = 0; i < k; i++)
3241	>	fs[i] = new CompletableFuture<>();
3242	>	CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3243	>	for (int i = 0; i < k; i++) {
3244	>	checkIncomplete(f);
3245	>	checkIncomplete(CompletableFuture.allOf(fs));
3246	>	fs[i].complete(one);
3247	>	}
3248	>	checkCompletedNormally(f, null);
3249	>	checkCompletedNormally(CompletableFuture.allOf(fs), null);
3250	>	}
3251	>	}
3252	>
3253	>	public void testAllOf_normal_backwards() throws Exception {
3254	>	for (int k = 1; k < 10; k++) {
3255	>	CompletableFuture<Integer>[] fs
3256	>	= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3257	>	for (int i = 0; i < k; i++)
3258		fs[i] = new CompletableFuture<>();
3259		CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3260	<	for (int i = 0; i < k; ++i) {
3260	>	for (int i = k - 1; i >= 0; i--) {
3261		checkIncomplete(f);
3262		checkIncomplete(CompletableFuture.allOf(fs));
3263		fs[i].complete(one);
#	Line 2875 | Line 3267 | public class CompletableFutureTest exten
3267		}
3268		}
3269
3270	+	public void testAllOf_exceptional() throws Exception {
3271	+	for (int k = 1; k < 10; k++) {
3272	+	CompletableFuture<Integer>[] fs
3273	+	= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3274	+	CFException ex = new CFException();
3275	+	for (int i = 0; i < k; i++)
3276	+	fs[i] = new CompletableFuture<>();
3277	+	CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3278	+	for (int i = 0; i < k; i++) {
3279	+	checkIncomplete(f);
3280	+	checkIncomplete(CompletableFuture.allOf(fs));
3281	+	if (i != k / 2) {
3282	+	fs[i].complete(i);
3283	+	checkCompletedNormally(fs[i], i);
3284	+	} else {
3285	+	fs[i].completeExceptionally(ex);
3286	+	checkCompletedExceptionally(fs[i], ex);
3287	+	}
3288	+	}
3289	+	checkCompletedWithWrappedException(f, ex);
3290	+	checkCompletedWithWrappedException(CompletableFuture.allOf(fs), ex);
3291	+	}
3292	+	}
3293	+
3294		/**
3295		* anyOf(no component futures) returns an incomplete future
3296		*/
3297		public void testAnyOf_empty() throws Exception {
3298	+	for (Integer v1 : new Integer[] { 1, null })
3299	+	{
3300		CompletableFuture<Object> f = CompletableFuture.anyOf();
3301		checkIncomplete(f);
3302	<	}
3302	>
3303	>	f.complete(v1);
3304	>	checkCompletedNormally(f, v1);
3305	>	}}
3306
3307		/**
3308		* anyOf returns a future completed normally with a value when
3309		* a component future does
3310		*/
3311		public void testAnyOf_normal() throws Exception {
3312	<	for (int k = 0; k < 10; ++k) {
3312	>	for (int k = 0; k < 10; k++) {
3313		CompletableFuture[] fs = new CompletableFuture[k];
3314	<	for (int i = 0; i < k; ++i)
3314	>	for (int i = 0; i < k; i++)
3315		fs[i] = new CompletableFuture<>();
3316		CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3317		checkIncomplete(f);
3318	<	for (int i = 0; i < k; ++i) {
3319	<	fs[i].complete(one);
3320	<	checkCompletedNormally(f, one);
3321	<	checkCompletedNormally(CompletableFuture.anyOf(fs), one);
3318	>	for (int i = 0; i < k; i++) {
3319	>	fs[i].complete(i);
3320	>	checkCompletedNormally(f, 0);
3321	>	int x = (int) CompletableFuture.anyOf(fs).join();
3322	>	assertTrue(0 <= x && x <= i);
3323	>	}
3324	>	}
3325	>	}
3326	>	public void testAnyOf_normal_backwards() throws Exception {
3327	>	for (int k = 0; k < 10; k++) {
3328	>	CompletableFuture[] fs = new CompletableFuture[k];
3329	>	for (int i = 0; i < k; i++)
3330	>	fs[i] = new CompletableFuture<>();
3331	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3332	>	checkIncomplete(f);
3333	>	for (int i = k - 1; i >= 0; i--) {
3334	>	fs[i].complete(i);
3335	>	checkCompletedNormally(f, k - 1);
3336	>	int x = (int) CompletableFuture.anyOf(fs).join();
3337	>	assertTrue(i <= x && x <= k - 1);
3338		}
3339		}
3340		}
#	Line 2906 | Line 3343 | public class CompletableFutureTest exten
3343		* anyOf result completes exceptionally when any component does.
3344		*/
3345		public void testAnyOf_exceptional() throws Exception {
3346	<	for (int k = 0; k < 10; ++k) {
3346	>	for (int k = 0; k < 10; k++) {
3347	>	CompletableFuture[] fs = new CompletableFuture[k];
3348	>	CFException[] exs = new CFException[k];
3349	>	for (int i = 0; i < k; i++) {
3350	>	fs[i] = new CompletableFuture<>();
3351	>	exs[i] = new CFException();
3352	>	}
3353	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3354	>	checkIncomplete(f);
3355	>	for (int i = 0; i < k; i++) {
3356	>	fs[i].completeExceptionally(exs[i]);
3357	>	checkCompletedWithWrappedException(f, exs[0]);
3358	>	checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3359	>	}
3360	>	}
3361	>	}
3362	>
3363	>	public void testAnyOf_exceptional_backwards() throws Exception {
3364	>	for (int k = 0; k < 10; k++) {
3365		CompletableFuture[] fs = new CompletableFuture[k];
3366	<	for (int i = 0; i < k; ++i)
3366	>	CFException[] exs = new CFException[k];
3367	>	for (int i = 0; i < k; i++) {
3368		fs[i] = new CompletableFuture<>();
3369	+	exs[i] = new CFException();
3370	+	}
3371		CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3372		checkIncomplete(f);
3373	<	for (int i = 0; i < k; ++i) {
3374	<	fs[i].completeExceptionally(new CFException());
3375	<	checkCompletedWithWrappedCFException(f);
3373	>	for (int i = k - 1; i >= 0; i--) {
3374	>	fs[i].completeExceptionally(exs[i]);
3375	>	checkCompletedWithWrappedException(f, exs[k - 1]);
3376		checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3377		}
3378		}
#	Line 2923 | Line 3381 | public class CompletableFutureTest exten
3381		/**
3382		* Completion methods throw NullPointerException with null arguments
3383		*/
3384	+	@SuppressWarnings("FutureReturnValueIgnored")
3385		public void testNPE() {
3386		CompletableFuture<Integer> f = new CompletableFuture<>();
3387		CompletableFuture<Integer> g = new CompletableFuture<>();
3388		CompletableFuture<Integer> nullFuture = (CompletableFuture<Integer>)null;
2930	–	CompletableFuture<?> h;
3389		ThreadExecutor exec = new ThreadExecutor();
3390
3391		Runnable[] throwingActions = {
3392		() -> CompletableFuture.supplyAsync(null),
3393		() -> CompletableFuture.supplyAsync(null, exec),
3394	<	() -> CompletableFuture.supplyAsync(supplyOne, null),
3394	>	() -> CompletableFuture.supplyAsync(new IntegerSupplier(ExecutionMode.SYNC, 42), null),
3395
3396		() -> CompletableFuture.runAsync(null),
3397		() -> CompletableFuture.runAsync(null, exec),
#	Line 2943 | Line 3401 | public class CompletableFutureTest exten
3401
3402		() -> f.thenApply(null),
3403		() -> f.thenApplyAsync(null),
3404	<	() -> f.thenApplyAsync((x) -> x, null),
3404	>	() -> f.thenApplyAsync(x -> x, null),
3405		() -> f.thenApplyAsync(null, exec),
3406
3407		() -> f.thenAccept(null),
3408		() -> f.thenAcceptAsync(null),
3409	<	() -> f.thenAcceptAsync((x) -> {} , null),
3409	>	() -> f.thenAcceptAsync(x -> {} , null),
3410		() -> f.thenAcceptAsync(null, exec),
3411
3412		() -> f.thenRun(null),
#	Line 2983 | Line 3441 | public class CompletableFutureTest exten
3441		() -> f.applyToEither(g, null),
3442		() -> f.applyToEitherAsync(g, null),
3443		() -> f.applyToEitherAsync(g, null, exec),
3444	<	() -> f.applyToEither(nullFuture, (x) -> x),
3445	<	() -> f.applyToEitherAsync(nullFuture, (x) -> x),
3446	<	() -> f.applyToEitherAsync(nullFuture, (x) -> x, exec),
3447	<	() -> f.applyToEitherAsync(g, (x) -> x, null),
3444	>	() -> f.applyToEither(nullFuture, x -> x),
3445	>	() -> f.applyToEitherAsync(nullFuture, x -> x),
3446	>	() -> f.applyToEitherAsync(nullFuture, x -> x, exec),
3447	>	() -> f.applyToEitherAsync(g, x -> x, null),
3448
3449		() -> f.acceptEither(g, null),
3450		() -> f.acceptEitherAsync(g, null),
3451		() -> f.acceptEitherAsync(g, null, exec),
3452	<	() -> f.acceptEither(nullFuture, (x) -> {}),
3453	<	() -> f.acceptEitherAsync(nullFuture, (x) -> {}),
3454	<	() -> f.acceptEitherAsync(nullFuture, (x) -> {}, exec),
3455	<	() -> f.acceptEitherAsync(g, (x) -> {}, null),
3452	>	() -> f.acceptEither(nullFuture, x -> {}),
3453	>	() -> f.acceptEitherAsync(nullFuture, x -> {}),
3454	>	() -> f.acceptEitherAsync(nullFuture, x -> {}, exec),
3455	>	() -> f.acceptEitherAsync(g, x -> {}, null),
3456
3457		() -> f.runAfterEither(g, null),
3458		() -> f.runAfterEitherAsync(g, null),
#	Line 3006 | Line 3464 | public class CompletableFutureTest exten
3464
3465		() -> f.thenCompose(null),
3466		() -> f.thenComposeAsync(null),
3467	<	() -> f.thenComposeAsync(new CompletableFutureInc(), null),
3467	>	() -> f.thenComposeAsync(new CompletableFutureInc(ExecutionMode.EXECUTOR), null),
3468		() -> f.thenComposeAsync(null, exec),
3469
3470		() -> f.exceptionally(null),
#	Line 3022 | Line 3480 | public class CompletableFutureTest exten
3480		() -> CompletableFuture.anyOf((CompletableFuture<?>[])null),
3481		() -> CompletableFuture.anyOf(f, null),
3482		() -> CompletableFuture.anyOf(null, f),
3483	+
3484	+	() -> f.obtrudeException(null),
3485	+
3486	+	() -> CompletableFuture.delayedExecutor(1L, SECONDS, null),
3487	+	() -> CompletableFuture.delayedExecutor(1L, null, exec),
3488	+	() -> CompletableFuture.delayedExecutor(1L, null),
3489	+
3490	+	() -> f.orTimeout(1L, null),
3491	+	() -> f.completeOnTimeout(42, 1L, null),
3492	+
3493	+	() -> CompletableFuture.failedFuture(null),
3494	+	() -> CompletableFuture.failedStage(null),
3495		};
3496
3497		assertThrows(NullPointerException.class, throwingActions);
#	Line 3029 | Line 3499 | public class CompletableFutureTest exten
3499		}
3500
3501		/**
3502	+	* Test submissions to an executor that rejects all tasks.
3503	+	*/
3504	+	public void testRejectingExecutor() {
3505	+	for (Integer v : new Integer[] { 1, null })
3506	+	{
3507	+	final CountingRejectingExecutor e = new CountingRejectingExecutor();
3508	+
3509	+	final CompletableFuture<Integer> complete = CompletableFuture.completedFuture(v);
3510	+	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3511	+
3512	+	List<CompletableFuture<?>> futures = new ArrayList<>();
3513	+
3514	+	List<CompletableFuture<Integer>> srcs = new ArrayList<>();
3515	+	srcs.add(complete);
3516	+	srcs.add(incomplete);
3517	+
3518	+	for (CompletableFuture<Integer> src : srcs) {
3519	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3520	+	fs.add(src.thenRunAsync(() -> {}, e));
3521	+	fs.add(src.thenAcceptAsync(z -> {}, e));
3522	+	fs.add(src.thenApplyAsync(z -> z, e));
3523	+
3524	+	fs.add(src.thenCombineAsync(src, (x, y) -> x, e));
3525	+	fs.add(src.thenAcceptBothAsync(src, (x, y) -> {}, e));
3526	+	fs.add(src.runAfterBothAsync(src, () -> {}, e));
3527	+
3528	+	fs.add(src.applyToEitherAsync(src, z -> z, e));
3529	+	fs.add(src.acceptEitherAsync(src, z -> {}, e));
3530	+	fs.add(src.runAfterEitherAsync(src, () -> {}, e));
3531	+
3532	+	fs.add(src.thenComposeAsync(z -> null, e));
3533	+	fs.add(src.whenCompleteAsync((z, t) -> {}, e));
3534	+	fs.add(src.handleAsync((z, t) -> null, e));
3535	+
3536	+	for (CompletableFuture<?> future : fs) {
3537	+	if (src.isDone())
3538	+	checkCompletedWithWrappedException(future, e.ex);
3539	+	else
3540	+	checkIncomplete(future);
3541	+	}
3542	+	futures.addAll(fs);
3543	+	}
3544	+
3545	+	{
3546	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3547	+
3548	+	fs.add(complete.thenCombineAsync(incomplete, (x, y) -> x, e));
3549	+	fs.add(incomplete.thenCombineAsync(complete, (x, y) -> x, e));
3550	+
3551	+	fs.add(complete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3552	+	fs.add(incomplete.thenAcceptBothAsync(complete, (x, y) -> {}, e));
3553	+
3554	+	fs.add(complete.runAfterBothAsync(incomplete, () -> {}, e));
3555	+	fs.add(incomplete.runAfterBothAsync(complete, () -> {}, e));
3556	+
3557	+	for (CompletableFuture<?> future : fs)
3558	+	checkIncomplete(future);
3559	+	futures.addAll(fs);
3560	+	}
3561	+
3562	+	{
3563	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3564	+
3565	+	fs.add(complete.applyToEitherAsync(incomplete, z -> z, e));
3566	+	fs.add(incomplete.applyToEitherAsync(complete, z -> z, e));
3567	+
3568	+	fs.add(complete.acceptEitherAsync(incomplete, z -> {}, e));
3569	+	fs.add(incomplete.acceptEitherAsync(complete, z -> {}, e));
3570	+
3571	+	fs.add(complete.runAfterEitherAsync(incomplete, () -> {}, e));
3572	+	fs.add(incomplete.runAfterEitherAsync(complete, () -> {}, e));
3573	+
3574	+	for (CompletableFuture<?> future : fs)
3575	+	checkCompletedWithWrappedException(future, e.ex);
3576	+	futures.addAll(fs);
3577	+	}
3578	+
3579	+	incomplete.complete(v);
3580	+
3581	+	for (CompletableFuture<?> future : futures)
3582	+	checkCompletedWithWrappedException(future, e.ex);
3583	+
3584	+	assertEquals(futures.size(), e.count.get());
3585	+	}}
3586	+
3587	+	/**
3588	+	* Test submissions to an executor that rejects all tasks, but
3589	+	* should never be invoked because the dependent future is
3590	+	* explicitly completed.
3591	+	*/
3592	+	public void testRejectingExecutorNeverInvoked() {
3593	+	for (Integer v : new Integer[] { 1, null })
3594	+	{
3595	+	final CountingRejectingExecutor e = new CountingRejectingExecutor();
3596	+
3597	+	final CompletableFuture<Integer> complete = CompletableFuture.completedFuture(v);
3598	+	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3599	+
3600	+	List<CompletableFuture<?>> futures = new ArrayList<>();
3601	+
3602	+	List<CompletableFuture<Integer>> srcs = new ArrayList<>();
3603	+	srcs.add(complete);
3604	+	srcs.add(incomplete);
3605	+
3606	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3607	+	fs.add(incomplete.thenRunAsync(() -> {}, e));
3608	+	fs.add(incomplete.thenAcceptAsync(z -> {}, e));
3609	+	fs.add(incomplete.thenApplyAsync(z -> z, e));
3610	+
3611	+	fs.add(incomplete.thenCombineAsync(incomplete, (x, y) -> x, e));
3612	+	fs.add(incomplete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3613	+	fs.add(incomplete.runAfterBothAsync(incomplete, () -> {}, e));
3614	+
3615	+	fs.add(incomplete.applyToEitherAsync(incomplete, z -> z, e));
3616	+	fs.add(incomplete.acceptEitherAsync(incomplete, z -> {}, e));
3617	+	fs.add(incomplete.runAfterEitherAsync(incomplete, () -> {}, e));
3618	+
3619	+	fs.add(incomplete.thenComposeAsync(z -> null, e));
3620	+	fs.add(incomplete.whenCompleteAsync((z, t) -> {}, e));
3621	+	fs.add(incomplete.handleAsync((z, t) -> null, e));
3622	+
3623	+	fs.add(complete.thenCombineAsync(incomplete, (x, y) -> x, e));
3624	+	fs.add(incomplete.thenCombineAsync(complete, (x, y) -> x, e));
3625	+
3626	+	fs.add(complete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3627	+	fs.add(incomplete.thenAcceptBothAsync(complete, (x, y) -> {}, e));
3628	+
3629	+	fs.add(complete.runAfterBothAsync(incomplete, () -> {}, e));
3630	+	fs.add(incomplete.runAfterBothAsync(complete, () -> {}, e));
3631	+
3632	+	for (CompletableFuture<?> future : fs)
3633	+	checkIncomplete(future);
3634	+
3635	+	for (CompletableFuture<?> future : fs)
3636	+	future.complete(null);
3637	+
3638	+	incomplete.complete(v);
3639	+
3640	+	for (CompletableFuture<?> future : fs)
3641	+	checkCompletedNormally(future, null);
3642	+
3643	+	assertEquals(0, e.count.get());
3644	+	}}
3645	+
3646	+	/**
3647		* toCompletableFuture returns this CompletableFuture.
3648		*/
3649		public void testToCompletableFuture() {
#	Line 3036 | Line 3651 | public class CompletableFutureTest exten
3651		assertSame(f, f.toCompletableFuture());
3652		}
3653
3654	+	// jdk9
3655	+
3656		/**
3657	<	* whenComplete action executes on normal completion, propagating
3041	<	* source result.
3657	>	* newIncompleteFuture returns an incomplete CompletableFuture
3658		*/
3659	<	public void testWhenComplete1() {
3660	<	final AtomicInteger a = new AtomicInteger();
3659	>	public void testNewIncompleteFuture() {
3660	>	for (Integer v1 : new Integer[] { 1, null })
3661	>	{
3662		CompletableFuture<Integer> f = new CompletableFuture<>();
3663	<	CompletableFuture<Integer> g =
3664	<	f.whenComplete((Integer x, Throwable t) -> a.getAndIncrement());
3665	<	f.complete(three);
3666	<	checkCompletedNormally(f, three);
3667	<	checkCompletedNormally(g, three);
3668	<	assertEquals(a.get(), 1);
3663	>	CompletableFuture<Integer> g = f.newIncompleteFuture();
3664	>	checkIncomplete(f);
3665	>	checkIncomplete(g);
3666	>	f.complete(v1);
3667	>	checkCompletedNormally(f, v1);
3668	>	checkIncomplete(g);
3669	>	g.complete(v1);
3670	>	checkCompletedNormally(g, v1);
3671	>	assertSame(g.getClass(), CompletableFuture.class);
3672	>	}}
3673	>
3674	>	/**
3675	>	* completedStage returns a completed CompletionStage
3676	>	*/
3677	>	public void testCompletedStage() {
3678	>	AtomicInteger x = new AtomicInteger(0);
3679	>	AtomicReference<Throwable> r = new AtomicReference<>();
3680	>	CompletionStage<Integer> f = CompletableFuture.completedStage(1);
3681	>	f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3682	>	assertEquals(x.get(), 1);
3683	>	assertNull(r.get());
3684		}
3685
3686		/**
3687	<	* whenComplete action executes on exceptional completion, propagating
3688	<	* source result.
3687	>	* defaultExecutor by default returns the commonPool if
3688	>	* it supports more than one thread.
3689		*/
3690	<	public void testWhenComplete2() {
3059	<	final AtomicInteger a = new AtomicInteger();
3690	>	public void testDefaultExecutor() {
3691		CompletableFuture<Integer> f = new CompletableFuture<>();
3692	<	CompletableFuture<Integer> g =
3693	<	f.whenComplete((Integer x, Throwable t) -> a.getAndIncrement());
3694	<	f.completeExceptionally(new CFException());
3695	<	assertTrue(f.isCompletedExceptionally());
3696	<	assertTrue(g.isCompletedExceptionally());
3697	<	assertEquals(a.get(), 1);
3692	>	Executor e = f.defaultExecutor();
3693	>	Executor c = ForkJoinPool.commonPool();
3694	>	if (ForkJoinPool.getCommonPoolParallelism() > 1)
3695	>	assertSame(e, c);
3696	>	else
3697	>	assertNotSame(e, c);
3698		}
3699
3700		/**
3701	<	* If a whenComplete action throws an exception when triggered by
3702	<	* a normal completion, it completes exceptionally
3701	>	* failedFuture returns a CompletableFuture completed
3702	>	* exceptionally with the given Exception
3703	>	*/
3704	>	public void testFailedFuture() {
3705	>	CFException ex = new CFException();
3706	>	CompletableFuture<Integer> f = CompletableFuture.failedFuture(ex);
3707	>	checkCompletedExceptionally(f, ex);
3708	>	}
3709	>
3710	>	/**
3711	>	* failedFuture(null) throws NPE
3712	>	*/
3713	>	public void testFailedFuture_null() {
3714	>	try {
3715	>	CompletableFuture<Integer> f = CompletableFuture.failedFuture(null);
3716	>	shouldThrow();
3717	>	} catch (NullPointerException success) {}
3718	>	}
3719	>
3720	>	/**
3721	>	* copy returns a CompletableFuture that is completed normally,
3722	>	* with the same value, when source is.
3723		*/
3724	<	public void testWhenComplete3() {
3724	>	public void testCopy_normalCompletion() {
3725	>	for (boolean createIncomplete : new boolean[] { true, false })
3726	>	for (Integer v1 : new Integer[] { 1, null })
3727	>	{
3728		CompletableFuture<Integer> f = new CompletableFuture<>();
3729	<	CompletableFuture<Integer> g =
3730	<	f.whenComplete((Integer x, Throwable t) ->
3731	<	{ throw new CFException(); } );
3732	<	f.complete(three);
3733	<	checkCompletedNormally(f, three);
3734	<	assertTrue(g.isCompletedExceptionally());
3735	<	checkCompletedWithWrappedCFException(g);
3729	>	if (!createIncomplete) assertTrue(f.complete(v1));
3730	>	CompletableFuture<Integer> g = f.copy();
3731	>	if (createIncomplete) {
3732	>	checkIncomplete(f);
3733	>	checkIncomplete(g);
3734	>	assertTrue(f.complete(v1));
3735	>	}
3736	>	checkCompletedNormally(f, v1);
3737	>	checkCompletedNormally(g, v1);
3738	>	}}
3739	>
3740	>	/**
3741	>	* copy returns a CompletableFuture that is completed exceptionally
3742	>	* when source is.
3743	>	*/
3744	>	public void testCopy_exceptionalCompletion() {
3745	>	for (boolean createIncomplete : new boolean[] { true, false })
3746	>	{
3747	>	CFException ex = new CFException();
3748	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3749	>	if (!createIncomplete) f.completeExceptionally(ex);
3750	>	CompletableFuture<Integer> g = f.copy();
3751	>	if (createIncomplete) {
3752	>	checkIncomplete(f);
3753	>	checkIncomplete(g);
3754	>	f.completeExceptionally(ex);
3755	>	}
3756	>	checkCompletedExceptionally(f, ex);
3757	>	checkCompletedWithWrappedException(g, ex);
3758	>	}}
3759	>
3760	>	/**
3761	>	* Completion of a copy does not complete its source.
3762	>	*/
3763	>	public void testCopy_oneWayPropagation() {
3764	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3765	>	assertTrue(f.copy().complete(1));
3766	>	assertTrue(f.copy().complete(null));
3767	>	assertTrue(f.copy().cancel(true));
3768	>	assertTrue(f.copy().cancel(false));
3769	>	assertTrue(f.copy().completeExceptionally(new CFException()));
3770	>	checkIncomplete(f);
3771		}
3772
3773		/**
3774	<	* whenCompleteAsync action executes on normal completion, propagating
3775	<	* source result.
3774	>	* minimalCompletionStage returns a CompletableFuture that is
3775	>	* completed normally, with the same value, when source is.
3776		*/
3777	<	public void testWhenCompleteAsync1() {
3089	<	final AtomicInteger a = new AtomicInteger();
3777	>	public void testMinimalCompletionStage() {
3778		CompletableFuture<Integer> f = new CompletableFuture<>();
3779	<	CompletableFuture<Integer> g =
3780	<	f.whenCompleteAsync((Integer x, Throwable t) -> a.getAndIncrement());
3781	<	f.complete(three);
3782	<	checkCompletedNormally(f, three);
3783	<	checkCompletedNormally(g, three);
3784	<	assertEquals(a.get(), 1);
3779	>	CompletionStage<Integer> g = f.minimalCompletionStage();
3780	>	AtomicInteger x = new AtomicInteger(0);
3781	>	AtomicReference<Throwable> r = new AtomicReference<>();
3782	>	checkIncomplete(f);
3783	>	g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3784	>	f.complete(1);
3785	>	checkCompletedNormally(f, 1);
3786	>	assertEquals(x.get(), 1);
3787	>	assertNull(r.get());
3788		}
3789
3790		/**
3791	<	* whenCompleteAsync action executes on exceptional completion, propagating
3792	<	* source result.
3791	>	* minimalCompletionStage returns a CompletableFuture that is
3792	>	* completed exceptionally when source is.
3793		*/
3794	<	public void testWhenCompleteAsync2() {
3104	<	final AtomicInteger a = new AtomicInteger();
3794	>	public void testMinimalCompletionStage2() {
3795		CompletableFuture<Integer> f = new CompletableFuture<>();
3796	<	CompletableFuture<Integer> g =
3797	<	f.whenCompleteAsync((Integer x, Throwable t) -> a.getAndIncrement());
3798	<	f.completeExceptionally(new CFException());
3799	<	checkCompletedWithWrappedCFException(f);
3800	<	checkCompletedWithWrappedCFException(g);
3796	>	CompletionStage<Integer> g = f.minimalCompletionStage();
3797	>	AtomicInteger x = new AtomicInteger(0);
3798	>	AtomicReference<Throwable> r = new AtomicReference<>();
3799	>	g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3800	>	checkIncomplete(f);
3801	>	CFException ex = new CFException();
3802	>	f.completeExceptionally(ex);
3803	>	checkCompletedExceptionally(f, ex);
3804	>	assertEquals(x.get(), 0);
3805	>	assertEquals(r.get().getCause(), ex);
3806	>	}
3807	>
3808	>	/**
3809	>	* failedStage returns a CompletionStage completed
3810	>	* exceptionally with the given Exception
3811	>	*/
3812	>	public void testFailedStage() {
3813	>	CFException ex = new CFException();
3814	>	CompletionStage<Integer> f = CompletableFuture.failedStage(ex);
3815	>	AtomicInteger x = new AtomicInteger(0);
3816	>	AtomicReference<Throwable> r = new AtomicReference<>();
3817	>	f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3818	>	assertEquals(x.get(), 0);
3819	>	assertEquals(r.get(), ex);
3820		}
3821
3822		/**
3823	<	* If a whenCompleteAsync action throws an exception when
3115	<	* triggered by a normal completion, it completes exceptionally
3823	>	* completeAsync completes with value of given supplier
3824		*/
3825	<	public void testWhenCompleteAsync3() {
3825	>	public void testCompleteAsync() {
3826	>	for (Integer v1 : new Integer[] { 1, null })
3827	>	{
3828		CompletableFuture<Integer> f = new CompletableFuture<>();
3829	<	CompletableFuture<Integer> g =
3830	<	f.whenCompleteAsync((Integer x, Throwable t) ->
3831	<	{ throw new CFException(); } );
3832	<	f.complete(three);
3833	<	checkCompletedNormally(f, three);
3834	<	checkCompletedWithWrappedCFException(g);
3829	>	f.completeAsync(() -> v1);
3830	>	f.join();
3831	>	checkCompletedNormally(f, v1);
3832	>	}}
3833	>
3834	>	/**
3835	>	* completeAsync completes exceptionally if given supplier throws
3836	>	*/
3837	>	public void testCompleteAsync2() {
3838	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3839	>	CFException ex = new CFException();
3840	>	f.completeAsync(() -> { throw ex; });
3841	>	try {
3842	>	f.join();
3843	>	shouldThrow();
3844	>	} catch (CompletionException success) {}
3845	>	checkCompletedWithWrappedException(f, ex);
3846		}
3847
3848		/**
3849	<	* whenCompleteAsync action executes on normal completion, propagating
3129	<	* source result.
3849	>	* completeAsync with given executor completes with value of given supplier
3850		*/
3851	<	public void testWhenCompleteAsync1e() {
3852	<	final AtomicInteger a = new AtomicInteger();
3853	<	ThreadExecutor exec = new ThreadExecutor();
3851	>	public void testCompleteAsync3() {
3852	>	for (Integer v1 : new Integer[] { 1, null })
3853	>	{
3854		CompletableFuture<Integer> f = new CompletableFuture<>();
3855	<	CompletableFuture<Integer> g =
3856	<	f.whenCompleteAsync((Integer x, Throwable t) -> a.getAndIncrement(),
3857	<	exec);
3858	<	f.complete(three);
3859	<	checkCompletedNormally(f, three);
3860	<	checkCompletedNormally(g, three);
3861	<	assertEquals(a.get(), 1);
3855	>	ThreadExecutor executor = new ThreadExecutor();
3856	>	f.completeAsync(() -> v1, executor);
3857	>	assertSame(v1, f.join());
3858	>	checkCompletedNormally(f, v1);
3859	>	assertEquals(1, executor.count.get());
3860	>	}}
3861	>
3862	>	/**
3863	>	* completeAsync with given executor completes exceptionally if
3864	>	* given supplier throws
3865	>	*/
3866	>	public void testCompleteAsync4() {
3867	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3868	>	CFException ex = new CFException();
3869	>	ThreadExecutor executor = new ThreadExecutor();
3870	>	f.completeAsync(() -> { throw ex; }, executor);
3871	>	try {
3872	>	f.join();
3873	>	shouldThrow();
3874	>	} catch (CompletionException success) {}
3875	>	checkCompletedWithWrappedException(f, ex);
3876	>	assertEquals(1, executor.count.get());
3877		}
3878
3879		/**
3880	<	* whenCompleteAsync action executes on exceptional completion, propagating
3146	<	* source result.
3880	>	* orTimeout completes with TimeoutException if not complete
3881		*/
3882	<	public void testWhenCompleteAsync2e() {
3883	<	final AtomicInteger a = new AtomicInteger();
3150	<	ThreadExecutor exec = new ThreadExecutor();
3882	>	public void testOrTimeout_timesOut() {
3883	>	long timeoutMillis = timeoutMillis();
3884		CompletableFuture<Integer> f = new CompletableFuture<>();
3885	<	CompletableFuture<Integer> g =
3886	<	f.whenCompleteAsync((Integer x, Throwable t) -> a.getAndIncrement(),
3887	<	exec);
3888	<	f.completeExceptionally(new CFException());
3156	<	checkCompletedWithWrappedCFException(f);
3157	<	checkCompletedWithWrappedCFException(g);
3885	>	long startTime = System.nanoTime();
3886	>	assertSame(f, f.orTimeout(timeoutMillis, MILLISECONDS));
3887	>	checkCompletedWithTimeoutException(f);
3888	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3889		}
3890
3891		/**
3892	<	* If a whenCompleteAsync action throws an exception when triggered
3162	<	* by a normal completion, it completes exceptionally
3892	>	* orTimeout completes normally if completed before timeout
3893		*/
3894	<	public void testWhenCompleteAsync3e() {
3895	<	ThreadExecutor exec = new ThreadExecutor();
3894	>	public void testOrTimeout_completed() {
3895	>	for (Integer v1 : new Integer[] { 1, null })
3896	>	{
3897	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3898	>	CompletableFuture<Integer> g = new CompletableFuture<>();
3899	>	long startTime = System.nanoTime();
3900	>	f.complete(v1);
3901	>	assertSame(f, f.orTimeout(LONG_DELAY_MS, MILLISECONDS));
3902	>	assertSame(g, g.orTimeout(LONG_DELAY_MS, MILLISECONDS));
3903	>	g.complete(v1);
3904	>	checkCompletedNormally(f, v1);
3905	>	checkCompletedNormally(g, v1);
3906	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3907	>	}}
3908	>
3909	>	/**
3910	>	* completeOnTimeout completes with given value if not complete
3911	>	*/
3912	>	public void testCompleteOnTimeout_timesOut() {
3913	>	testInParallel(() -> testCompleteOnTimeout_timesOut(42),
3914	>	() -> testCompleteOnTimeout_timesOut(null));
3915	>	}
3916	>
3917	>	/**
3918	>	* completeOnTimeout completes with given value if not complete
3919	>	*/
3920	>	public void testCompleteOnTimeout_timesOut(Integer v) {
3921	>	long timeoutMillis = timeoutMillis();
3922	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3923	>	long startTime = System.nanoTime();
3924	>	assertSame(f, f.completeOnTimeout(v, timeoutMillis, MILLISECONDS));
3925	>	assertSame(v, f.join());
3926	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3927	>	f.complete(99);         // should have no effect
3928	>	checkCompletedNormally(f, v);
3929	>	}
3930	>
3931	>	/**
3932	>	* completeOnTimeout has no effect if completed within timeout
3933	>	*/
3934	>	public void testCompleteOnTimeout_completed() {
3935	>	for (Integer v1 : new Integer[] { 1, null })
3936	>	{
3937		CompletableFuture<Integer> f = new CompletableFuture<>();
3938	+	CompletableFuture<Integer> g = new CompletableFuture<>();
3939	+	long startTime = System.nanoTime();
3940	+	f.complete(v1);
3941	+	assertSame(f, f.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS));
3942	+	assertSame(g, g.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS));
3943	+	g.complete(v1);
3944	+	checkCompletedNormally(f, v1);
3945	+	checkCompletedNormally(g, v1);
3946	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3947	+	}}
3948	+
3949	+	/**
3950	+	* delayedExecutor returns an executor that delays submission
3951	+	*/
3952	+	public void testDelayedExecutor() {
3953	+	testInParallel(() -> testDelayedExecutor(null, null),
3954	+	() -> testDelayedExecutor(null, 1),
3955	+	() -> testDelayedExecutor(new ThreadExecutor(), 1),
3956	+	() -> testDelayedExecutor(new ThreadExecutor(), 1));
3957	+	}
3958	+
3959	+	public void testDelayedExecutor(Executor executor, Integer v) throws Exception {
3960	+	long timeoutMillis = timeoutMillis();
3961	+	// Use an "unreasonably long" long timeout to catch lingering threads
3962	+	long longTimeoutMillis = 1000 * 60 * 60 * 24;
3963	+	final Executor delayer, longDelayer;
3964	+	if (executor == null) {
3965	+	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS);
3966	+	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS);
3967	+	} else {
3968	+	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS, executor);
3969	+	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS, executor);
3970	+	}
3971	+	long startTime = System.nanoTime();
3972	+	CompletableFuture<Integer> f =
3973	+	CompletableFuture.supplyAsync(() -> v, delayer);
3974		CompletableFuture<Integer> g =
3975	<	f.whenCompleteAsync((Integer x, Throwable t) ->
3976	<	{ throw new CFException(); },
3977	<	exec);
3978	<	f.complete(three);
3979	<	checkCompletedNormally(f, three);
3980	<	checkCompletedWithWrappedCFException(g);
3975	>	CompletableFuture.supplyAsync(() -> v, longDelayer);
3976	>
3977	>	assertNull(g.getNow(null));
3978	>
3979	>	assertSame(v, f.get(LONG_DELAY_MS, MILLISECONDS));
3980	>	long millisElapsed = millisElapsedSince(startTime);
3981	>	assertTrue(millisElapsed >= timeoutMillis);
3982	>	assertTrue(millisElapsed < LONG_DELAY_MS / 2);
3983	>
3984	>	checkCompletedNormally(f, v);
3985	>
3986	>	checkIncomplete(g);
3987	>	assertTrue(g.cancel(true));
3988		}
3989
3990	+	//--- tests of implementation details; not part of official tck ---
3991	+
3992	+	Object resultOf(CompletableFuture<?> f) {
3993	+	SecurityManager sm = System.getSecurityManager();
3994	+	if (sm != null) {
3995	+	try {
3996	+	System.setSecurityManager(null);
3997	+	} catch (SecurityException giveUp) {
3998	+	return "Reflection not available";
3999	+	}
4000	+	}
4001	+
4002	+	try {
4003	+	java.lang.reflect.Field resultField
4004	+	= CompletableFuture.class.getDeclaredField("result");
4005	+	resultField.setAccessible(true);
4006	+	return resultField.get(f);
4007	+	} catch (Throwable t) {
4008	+	throw new AssertionError(t);
4009	+	} finally {
4010	+	if (sm != null) System.setSecurityManager(sm);
4011	+	}
4012	+	}
4013	+
4014	+	public void testExceptionPropagationReusesResultObject() {
4015	+	if (!testImplementationDetails) return;
4016	+	for (ExecutionMode m : ExecutionMode.values())
4017	+	{
4018	+	final CFException ex = new CFException();
4019	+	final CompletableFuture<Integer> v42 = CompletableFuture.completedFuture(42);
4020	+	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
4021	+
4022	+	final Runnable noopRunnable = new Noop(m);
4023	+	final Consumer<Integer> noopConsumer = new NoopConsumer(m);
4024	+	final Function<Integer, Integer> incFunction = new IncFunction(m);
4025	+
4026	+	List<Function<CompletableFuture<Integer>, CompletableFuture<?>>> funs
4027	+	= new ArrayList<>();
4028	+
4029	+	funs.add(y -> m.thenRun(y, noopRunnable));
4030	+	funs.add(y -> m.thenAccept(y, noopConsumer));
4031	+	funs.add(y -> m.thenApply(y, incFunction));
4032	+
4033	+	funs.add(y -> m.runAfterEither(y, incomplete, noopRunnable));
4034	+	funs.add(y -> m.acceptEither(y, incomplete, noopConsumer));
4035	+	funs.add(y -> m.applyToEither(y, incomplete, incFunction));
4036	+
4037	+	funs.add(y -> m.runAfterBoth(y, v42, noopRunnable));
4038	+	funs.add(y -> m.runAfterBoth(v42, y, noopRunnable));
4039	+	funs.add(y -> m.thenAcceptBoth(y, v42, new SubtractAction(m)));
4040	+	funs.add(y -> m.thenAcceptBoth(v42, y, new SubtractAction(m)));
4041	+	funs.add(y -> m.thenCombine(y, v42, new SubtractFunction(m)));
4042	+	funs.add(y -> m.thenCombine(v42, y, new SubtractFunction(m)));
4043	+
4044	+	funs.add(y -> m.whenComplete(y, (Integer r, Throwable t) -> {}));
4045	+
4046	+	funs.add(y -> m.thenCompose(y, new CompletableFutureInc(m)));
4047	+
4048	+	funs.add(y -> CompletableFuture.allOf(y));
4049	+	funs.add(y -> CompletableFuture.allOf(y, v42));
4050	+	funs.add(y -> CompletableFuture.allOf(v42, y));
4051	+	funs.add(y -> CompletableFuture.anyOf(y));
4052	+	funs.add(y -> CompletableFuture.anyOf(y, incomplete));
4053	+	funs.add(y -> CompletableFuture.anyOf(incomplete, y));
4054	+
4055	+	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
4056	+	fun : funs) {
4057	+	CompletableFuture<Integer> f = new CompletableFuture<>();
4058	+	f.completeExceptionally(ex);
4059	+	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4060	+	checkCompletedWithWrappedException(src, ex);
4061	+	CompletableFuture<?> dep = fun.apply(src);
4062	+	checkCompletedWithWrappedException(dep, ex);
4063	+	assertSame(resultOf(src), resultOf(dep));
4064	+	}
4065	+
4066	+	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
4067	+	fun : funs) {
4068	+	CompletableFuture<Integer> f = new CompletableFuture<>();
4069	+	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4070	+	CompletableFuture<?> dep = fun.apply(src);
4071	+	f.completeExceptionally(ex);
4072	+	checkCompletedWithWrappedException(src, ex);
4073	+	checkCompletedWithWrappedException(dep, ex);
4074	+	assertSame(resultOf(src), resultOf(dep));
4075	+	}
4076	+
4077	+	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
4078	+	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
4079	+	fun : funs) {
4080	+	CompletableFuture<Integer> f = new CompletableFuture<>();
4081	+	f.cancel(mayInterruptIfRunning);
4082	+	checkCancelled(f);
4083	+	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4084	+	checkCompletedWithWrappedCancellationException(src);
4085	+	CompletableFuture<?> dep = fun.apply(src);
4086	+	checkCompletedWithWrappedCancellationException(dep);
4087	+	assertSame(resultOf(src), resultOf(dep));
4088	+	}
4089	+
4090	+	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
4091	+	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
4092	+	fun : funs) {
4093	+	CompletableFuture<Integer> f = new CompletableFuture<>();
4094	+	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4095	+	CompletableFuture<?> dep = fun.apply(src);
4096	+	f.cancel(mayInterruptIfRunning);
4097	+	checkCancelled(f);
4098	+	checkCompletedWithWrappedCancellationException(src);
4099	+	checkCompletedWithWrappedCancellationException(dep);
4100	+	assertSame(resultOf(src), resultOf(dep));
4101	+	}
4102	+	}}
4103	+
4104		/**
4105	<	* handleAsync action completes normally with function value on
3178	<	* either normal or exceptional completion of source
4105	>	* Minimal completion stages throw UOE for most non-CompletionStage methods
4106		*/
4107	<	public void testHandleAsync() {
4108	<	CompletableFuture<Integer> f, g;
4109	<	IntegerHandler r;
4107	>	public void testMinimalCompletionStage_minimality() {
4108	>	if (!testImplementationDetails) return;
4109	>	Function<Method, String> toSignature =
4110	>	method -> method.getName() + Arrays.toString(method.getParameterTypes());
4111	>	Predicate<Method> isNotStatic =
4112	>	method -> (method.getModifiers() & Modifier.STATIC) == 0;
4113	>	List<Method> minimalMethods =
4114	>	Stream.of(Object.class, CompletionStage.class)
4115	>	.flatMap(klazz -> Stream.of(klazz.getMethods()))
4116	>	.filter(isNotStatic)
4117	>	.collect(Collectors.toList());
4118	>	// Methods from CompletableFuture permitted NOT to throw UOE
4119	>	String[] signatureWhitelist = {
4120	>	"newIncompleteFuture[]",
4121	>	"defaultExecutor[]",
4122	>	"minimalCompletionStage[]",
4123	>	"copy[]",
4124	>	};
4125	>	Set<String> permittedMethodSignatures =
4126	>	Stream.concat(minimalMethods.stream().map(toSignature),
4127	>	Stream.of(signatureWhitelist))
4128	>	.collect(Collectors.toSet());
4129	>	List<Method> allMethods = Stream.of(CompletableFuture.class.getMethods())
4130	>	.filter(isNotStatic)
4131	>	.filter(method -> !permittedMethodSignatures.contains(toSignature.apply(method)))
4132	>	.collect(Collectors.toList());
4133	>
4134	>	List<CompletionStage<Integer>> stages = new ArrayList<>();
4135	>	CompletionStage<Integer> min =
4136	>	new CompletableFuture<Integer>().minimalCompletionStage();
4137	>	stages.add(min);
4138	>	stages.add(min.thenApply(x -> x));
4139	>	stages.add(CompletableFuture.completedStage(1));
4140	>	stages.add(CompletableFuture.failedStage(new CFException()));
4141	>
4142	>	List<Method> bugs = new ArrayList<>();
4143	>	for (Method method : allMethods) {
4144	>	Class<?>[] parameterTypes = method.getParameterTypes();
4145	>	Object[] args = new Object[parameterTypes.length];
4146	>	// Manufacture boxed primitives for primitive params
4147	>	for (int i = 0; i < args.length; i++) {
4148	>	Class<?> type = parameterTypes[i];
4149	>	if (parameterTypes[i] == boolean.class)
4150	>	args[i] = false;
4151	>	else if (parameterTypes[i] == int.class)
4152	>	args[i] = 0;
4153	>	else if (parameterTypes[i] == long.class)
4154	>	args[i] = 0L;
4155	>	}
4156	>	for (CompletionStage<Integer> stage : stages) {
4157	>	try {
4158	>	method.invoke(stage, args);
4159	>	bugs.add(method);
4160	>	}
4161	>	catch (java.lang.reflect.InvocationTargetException expected) {
4162	>	if (! (expected.getCause() instanceof UnsupportedOperationException)) {
4163	>	bugs.add(method);
4164	>	// expected.getCause().printStackTrace();
4165	>	}
4166	>	}
4167	>	catch (ReflectiveOperationException bad) { throw new Error(bad); }
4168	>	}
4169	>	}
4170	>	if (!bugs.isEmpty())
4171	>	throw new Error("Methods did not throw UOE: " + bugs);
4172	>	}
4173
4174	<	f = new CompletableFuture<>();
4175	<	g = f.handleAsync(r = new IntegerHandler());
4176	<	assertFalse(r.ran);
4177	<	f.completeExceptionally(new CFException());
4178	<	checkCompletedWithWrappedCFException(f);
4179	<	checkCompletedNormally(g, three);
4180	<	assertTrue(r.ran);
4174	>	/**
4175	>	* minimalStage.toCompletableFuture() returns a CompletableFuture that
4176	>	* is completed normally, with the same value, when source is.
4177	>	*/
4178	>	public void testMinimalCompletionStage_toCompletableFuture_normalCompletion() {
4179	>	for (boolean createIncomplete : new boolean[] { true, false })
4180	>	for (Integer v1 : new Integer[] { 1, null })
4181	>	{
4182	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4183	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4184	>	if (!createIncomplete) assertTrue(f.complete(v1));
4185	>	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4186	>	if (createIncomplete) {
4187	>	checkIncomplete(f);
4188	>	checkIncomplete(g);
4189	>	assertTrue(f.complete(v1));
4190	>	}
4191	>	checkCompletedNormally(f, v1);
4192	>	checkCompletedNormally(g, v1);
4193	>	}}
4194	>
4195	>	/**
4196	>	* minimalStage.toCompletableFuture() returns a CompletableFuture that
4197	>	* is completed exceptionally when source is.
4198	>	*/
4199	>	public void testMinimalCompletionStage_toCompletableFuture_exceptionalCompletion() {
4200	>	for (boolean createIncomplete : new boolean[] { true, false })
4201	>	{
4202	>	CFException ex = new CFException();
4203	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4204	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4205	>	if (!createIncomplete) f.completeExceptionally(ex);
4206	>	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4207	>	if (createIncomplete) {
4208	>	checkIncomplete(f);
4209	>	checkIncomplete(g);
4210	>	f.completeExceptionally(ex);
4211	>	}
4212	>	checkCompletedExceptionally(f, ex);
4213	>	checkCompletedWithWrappedException(g, ex);
4214	>	}}
4215
4216	<	f = new CompletableFuture<>();
4217	<	g = f.handleAsync(r = new IntegerHandler());
4218	<	assertFalse(r.ran);
4219	<	f.completeExceptionally(new CFException());
4220	<	checkCompletedWithWrappedCFException(f);
4221	<	checkCompletedNormally(g, three);
4222	<	assertTrue(r.ran);
4216	>	/**
4217	>	* minimalStage.toCompletableFuture() gives mutable CompletableFuture
4218	>	*/
4219	>	public void testMinimalCompletionStage_toCompletableFuture_mutable() {
4220	>	for (Integer v1 : new Integer[] { 1, null })
4221	>	{
4222	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4223	>	CompletionStage minimal = f.minimalCompletionStage();
4224	>	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4225	>	assertTrue(g.complete(v1));
4226	>	checkCompletedNormally(g, v1);
4227	>	checkIncomplete(f);
4228	>	checkIncomplete(minimal.toCompletableFuture());
4229	>	}}
4230
4231	<	f = new CompletableFuture<>();
4232	<	g = f.handleAsync(r = new IntegerHandler());
4233	<	assertFalse(r.ran);
4234	<	f.complete(one);
4235	<	checkCompletedNormally(f, one);
4236	<	checkCompletedNormally(g, two);
4237	<	assertTrue(r.ran);
4231	>	/**
4232	>	* minimalStage.toCompletableFuture().join() awaits completion
4233	>	*/
4234	>	public void testMinimalCompletionStage_toCompletableFuture_join() throws Exception {
4235	>	for (boolean createIncomplete : new boolean[] { true, false })
4236	>	for (Integer v1 : new Integer[] { 1, null })
4237	>	{
4238	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4239	>	if (!createIncomplete) assertTrue(f.complete(v1));
4240	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4241	>	if (createIncomplete) assertTrue(f.complete(v1));
4242	>	assertEquals(v1, minimal.toCompletableFuture().join());
4243	>	assertEquals(v1, minimal.toCompletableFuture().get());
4244	>	checkCompletedNormally(minimal.toCompletableFuture(), v1);
4245	>	}}
4246	>
4247	>	/**
4248	>	* Completion of a toCompletableFuture copy of a minimal stage
4249	>	* does not complete its source.
4250	>	*/
4251	>	public void testMinimalCompletionStage_toCompletableFuture_oneWayPropagation() {
4252	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4253	>	CompletionStage<Integer> g = f.minimalCompletionStage();
4254	>	assertTrue(g.toCompletableFuture().complete(1));
4255	>	assertTrue(g.toCompletableFuture().complete(null));
4256	>	assertTrue(g.toCompletableFuture().cancel(true));
4257	>	assertTrue(g.toCompletableFuture().cancel(false));
4258	>	assertTrue(g.toCompletableFuture().completeExceptionally(new CFException()));
4259	>	checkIncomplete(g.toCompletableFuture());
4260	>	f.complete(1);
4261	>	checkCompletedNormally(g.toCompletableFuture(), 1);
4262	>	}
4263
4264	<	f = new CompletableFuture<>();
4265	<	g = f.handleAsync(r = new IntegerHandler());
4266	<	assertFalse(r.ran);
4267	<	f.complete(one);
4268	<	checkCompletedNormally(f, one);
4269	<	checkCompletedNormally(g, two);
4270	<	assertTrue(r.ran);
4264	>	/** Demo utility method for external reliable toCompletableFuture */
4265	>	static <T> CompletableFuture<T> toCompletableFuture(CompletionStage<T> stage) {
4266	>	CompletableFuture<T> f = new CompletableFuture<>();
4267	>	stage.handle((T t, Throwable ex) -> {
4268	>	if (ex != null) f.completeExceptionally(ex);
4269	>	else f.complete(t);
4270	>	return null;
4271	>	});
4272	>	return f;
4273	>	}
4274	>
4275	>	/** Demo utility method to join a CompletionStage */
4276	>	static <T> T join(CompletionStage<T> stage) {
4277	>	return toCompletableFuture(stage).join();
4278		}
4279
4280		/**
4281	<	* handleAsync action with Executor completes normally with
3219	<	* function value on either normal or exceptional completion of
3220	<	* source
4281	>	* Joining a minimal stage "by hand" works
4282		*/
4283	<	public void testHandleAsync2() {
4284	<	CompletableFuture<Integer> f, g;
4285	<	ThreadExecutor exec = new ThreadExecutor();
4286	<	IntegerHandler r;
4283	>	public void testMinimalCompletionStage_join_by_hand() {
4284	>	for (boolean createIncomplete : new boolean[] { true, false })
4285	>	for (Integer v1 : new Integer[] { 1, null })
4286	>	{
4287	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4288	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4289	>	CompletableFuture<Integer> g = new CompletableFuture<>();
4290	>	if (!createIncomplete) assertTrue(f.complete(v1));
4291	>	minimal.thenAccept(x -> g.complete(x));
4292	>	if (createIncomplete) assertTrue(f.complete(v1));
4293	>	g.join();
4294	>	checkCompletedNormally(g, v1);
4295	>	checkCompletedNormally(f, v1);
4296	>	assertEquals(v1, join(minimal));
4297	>	}}
4298	>
4299	>	static class Monad {
4300	>	static class ZeroException extends RuntimeException {
4301	>	public ZeroException() { super("monadic zero"); }
4302	>	}
4303	>	// "return", "unit"
4304	>	static <T> CompletableFuture<T> unit(T value) {
4305	>	return completedFuture(value);
4306	>	}
4307	>	// monadic zero ?
4308	>	static <T> CompletableFuture<T> zero() {
4309	>	return failedFuture(new ZeroException());
4310	>	}
4311	>	// >=>
4312	>	static <T,U,V> Function<T, CompletableFuture<V>> compose
4313	>	(Function<T, CompletableFuture<U>> f,
4314	>	Function<U, CompletableFuture<V>> g) {
4315	>	return x -> f.apply(x).thenCompose(g);
4316	>	}
4317
4318	<	f = new CompletableFuture<>();
4319	<	g = f.handleAsync(r = new IntegerHandler(), exec);
4320	<	assertFalse(r.ran);
4321	<	f.completeExceptionally(new CFException());
4322	<	checkCompletedWithWrappedCFException(f);
4323	<	checkCompletedNormally(g, three);
4324	<	assertTrue(r.ran);
4318	>	static void assertZero(CompletableFuture<?> f) {
4319	>	try {
4320	>	f.getNow(null);
4321	>	throw new AssertionError("should throw");
4322	>	} catch (CompletionException success) {
4323	>	assertTrue(success.getCause() instanceof ZeroException);
4324	>	}
4325	>	}
4326
4327	<	f = new CompletableFuture<>();
4328	<	g = f.handleAsync(r = new IntegerHandler(), exec);
4329	<	assertFalse(r.ran);
4330	<	f.completeExceptionally(new CFException());
4331	<	checkCompletedWithWrappedCFException(f);
4332	<	checkCompletedNormally(g, three);
4333	<	assertTrue(r.ran);
4327	>	static <T> void assertFutureEquals(CompletableFuture<T> f,
4328	>	CompletableFuture<T> g) {
4329	>	T fval = null, gval = null;
4330	>	Throwable fex = null, gex = null;
4331	>
4332	>	try { fval = f.get(); }
4333	>	catch (ExecutionException ex) { fex = ex.getCause(); }
4334	>	catch (Throwable ex) { fex = ex; }
4335	>
4336	>	try { gval = g.get(); }
4337	>	catch (ExecutionException ex) { gex = ex.getCause(); }
4338	>	catch (Throwable ex) { gex = ex; }
4339	>
4340	>	if (fex != null || gex != null)
4341	>	assertSame(fex.getClass(), gex.getClass());
4342	>	else
4343	>	assertEquals(fval, gval);
4344	>	}
4345
4346	<	f = new CompletableFuture<>();
4347	<	g = f.handleAsync(r = new IntegerHandler(), exec);
4348	<	assertFalse(r.ran);
3246	<	f.complete(one);
3247	<	checkCompletedNormally(f, one);
3248	<	checkCompletedNormally(g, two);
3249	<	assertTrue(r.ran);
4346	>	static class PlusFuture<T> extends CompletableFuture<T> {
4347	>	AtomicReference<Throwable> firstFailure = new AtomicReference<>(null);
4348	>	}
4349
4350	<	f = new CompletableFuture<>();
4351	<	g = f.handleAsync(r = new IntegerHandler(), exec);
4352	<	assertFalse(r.ran);
4353	<	f.complete(one);
4354	<	checkCompletedNormally(f, one);
4355	<	checkCompletedNormally(g, two);
4356	<	assertTrue(r.ran);
4350	>	/** Implements "monadic plus". */
4351	>	static <T> CompletableFuture<T> plus(CompletableFuture<? extends T> f,
4352	>	CompletableFuture<? extends T> g) {
4353	>	PlusFuture<T> plus = new PlusFuture<T>();
4354	>	BiConsumer<T, Throwable> action = (T result, Throwable ex) -> {
4355	>	try {
4356	>	if (ex == null) {
4357	>	if (plus.complete(result))
4358	>	if (plus.firstFailure.get() != null)
4359	>	plus.firstFailure.set(null);
4360	>	}
4361	>	else if (plus.firstFailure.compareAndSet(null, ex)) {
4362	>	if (plus.isDone())
4363	>	plus.firstFailure.set(null);
4364	>	}
4365	>	else {
4366	>	// first failure has precedence
4367	>	Throwable first = plus.firstFailure.getAndSet(null);
4368	>
4369	>	// may fail with "Self-suppression not permitted"
4370	>	try { first.addSuppressed(ex); }
4371	>	catch (Exception ignored) {}
4372	>
4373	>	plus.completeExceptionally(first);
4374	>	}
4375	>	} catch (Throwable unexpected) {
4376	>	plus.completeExceptionally(unexpected);
4377	>	}
4378	>	};
4379	>	f.whenComplete(action);
4380	>	g.whenComplete(action);
4381	>	return plus;
4382	>	}
4383		}
4384
4385	+	/**
4386	+	* CompletableFuture is an additive monad - sort of.
4387	+	* https://en.wikipedia.org/wiki/Monad_(functional_programming)#Additive_monads
4388	+	*/
4389	+	public void testAdditiveMonad() throws Throwable {
4390	+	Function<Long, CompletableFuture<Long>> unit = Monad::unit;
4391	+	CompletableFuture<Long> zero = Monad.zero();
4392	+
4393	+	// Some mutually non-commutative functions
4394	+	Function<Long, CompletableFuture<Long>> triple
4395	+	= x -> Monad.unit(3 * x);
4396	+	Function<Long, CompletableFuture<Long>> inc
4397	+	= x -> Monad.unit(x + 1);
4398	+
4399	+	// unit is a right identity: m >>= unit === m
4400	+	Monad.assertFutureEquals(inc.apply(5L).thenCompose(unit),
4401	+	inc.apply(5L));
4402	+	// unit is a left identity: (unit x) >>= f === f x
4403	+	Monad.assertFutureEquals(unit.apply(5L).thenCompose(inc),
4404	+	inc.apply(5L));
4405	+
4406	+	// associativity: (m >>= f) >>= g === m >>= ( \x -> (f x >>= g) )
4407	+	Monad.assertFutureEquals(
4408	+	unit.apply(5L).thenCompose(inc).thenCompose(triple),
4409	+	unit.apply(5L).thenCompose(x -> inc.apply(x).thenCompose(triple)));
4410	+
4411	+	// The case for CompletableFuture as an additive monad is weaker...
4412	+
4413	+	// zero is a monadic zero
4414	+	Monad.assertZero(zero);
4415	+
4416	+	// left zero: zero >>= f === zero
4417	+	Monad.assertZero(zero.thenCompose(inc));
4418	+	// right zero: f >>= (\x -> zero) === zero
4419	+	Monad.assertZero(inc.apply(5L).thenCompose(x -> zero));
4420	+
4421	+	// f plus zero === f
4422	+	Monad.assertFutureEquals(Monad.unit(5L),
4423	+	Monad.plus(Monad.unit(5L), zero));
4424	+	// zero plus f === f
4425	+	Monad.assertFutureEquals(Monad.unit(5L),
4426	+	Monad.plus(zero, Monad.unit(5L)));
4427	+	// zero plus zero === zero
4428	+	Monad.assertZero(Monad.plus(zero, zero));
4429	+	{
4430	+	CompletableFuture<Long> f = Monad.plus(Monad.unit(5L),
4431	+	Monad.unit(8L));
4432	+	// non-determinism
4433	+	assertTrue(f.get() == 5L || f.get() == 8L);
4434	+	}
4435	+
4436	+	CompletableFuture<Long> godot = new CompletableFuture<>();
4437	+	// f plus godot === f (doesn't wait for godot)
4438	+	Monad.assertFutureEquals(Monad.unit(5L),
4439	+	Monad.plus(Monad.unit(5L), godot));
4440	+	// godot plus f === f (doesn't wait for godot)
4441	+	Monad.assertFutureEquals(Monad.unit(5L),
4442	+	Monad.plus(godot, Monad.unit(5L)));
4443	+	}
4444	+
4445	+	/** Test long recursive chains of CompletableFutures with cascading completions */
4446	+	@SuppressWarnings("FutureReturnValueIgnored")
4447	+	public void testRecursiveChains() throws Throwable {
4448	+	for (ExecutionMode m : ExecutionMode.values())
4449	+	for (boolean addDeadEnds : new boolean[] { true, false })
4450	+	{
4451	+	final int val = 42;
4452	+	final int n = expensiveTests ? 1_000 : 2;
4453	+	CompletableFuture<Integer> head = new CompletableFuture<>();
4454	+	CompletableFuture<Integer> tail = head;
4455	+	for (int i = 0; i < n; i++) {
4456	+	if (addDeadEnds) m.thenApply(tail, v -> v + 1);
4457	+	tail = m.thenApply(tail, v -> v + 1);
4458	+	if (addDeadEnds) m.applyToEither(tail, tail, v -> v + 1);
4459	+	tail = m.applyToEither(tail, tail, v -> v + 1);
4460	+	if (addDeadEnds) m.thenCombine(tail, tail, (v, w) -> v + 1);
4461	+	tail = m.thenCombine(tail, tail, (v, w) -> v + 1);
4462	+	}
4463	+	head.complete(val);
4464	+	assertEquals(val + 3 * n, (int) tail.join());
4465	+	}}
4466	+
4467	+	/**
4468	+	* A single CompletableFuture with many dependents.
4469	+	* A demo of scalability - runtime is O(n).
4470	+	*/
4471	+	@SuppressWarnings("FutureReturnValueIgnored")
4472	+	public void testManyDependents() throws Throwable {
4473	+	final int n = expensiveTests ? 1_000_000 : 10;
4474	+	final CompletableFuture<Void> head = new CompletableFuture<>();
4475	+	final CompletableFuture<Void> complete = CompletableFuture.completedFuture((Void)null);
4476	+	final AtomicInteger count = new AtomicInteger(0);
4477	+	for (int i = 0; i < n; i++) {
4478	+	head.thenRun(() -> count.getAndIncrement());
4479	+	head.thenAccept(x -> count.getAndIncrement());
4480	+	head.thenApply(x -> count.getAndIncrement());
4481	+
4482	+	head.runAfterBoth(complete, () -> count.getAndIncrement());
4483	+	head.thenAcceptBoth(complete, (x, y) -> count.getAndIncrement());
4484	+	head.thenCombine(complete, (x, y) -> count.getAndIncrement());
4485	+	complete.runAfterBoth(head, () -> count.getAndIncrement());
4486	+	complete.thenAcceptBoth(head, (x, y) -> count.getAndIncrement());
4487	+	complete.thenCombine(head, (x, y) -> count.getAndIncrement());
4488	+
4489	+	head.runAfterEither(new CompletableFuture<Void>(), () -> count.getAndIncrement());
4490	+	head.acceptEither(new CompletableFuture<Void>(), x -> count.getAndIncrement());
4491	+	head.applyToEither(new CompletableFuture<Void>(), x -> count.getAndIncrement());
4492	+	new CompletableFuture<Void>().runAfterEither(head, () -> count.getAndIncrement());
4493	+	new CompletableFuture<Void>().acceptEither(head, x -> count.getAndIncrement());
4494	+	new CompletableFuture<Void>().applyToEither(head, x -> count.getAndIncrement());
4495	+	}
4496	+	head.complete(null);
4497	+	assertEquals(5 * 3 * n, count.get());
4498	+	}
4499	+
4500	+	/** ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest tck */
4501	+	@SuppressWarnings("FutureReturnValueIgnored")
4502	+	public void testCoCompletionGarbageRetention() throws Throwable {
4503	+	final int n = expensiveTests ? 1_000_000 : 10;
4504	+	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
4505	+	CompletableFuture<Integer> f;
4506	+	for (int i = 0; i < n; i++) {
4507	+	f = new CompletableFuture<>();
4508	+	f.runAfterEither(incomplete, () -> {});
4509	+	f.complete(null);
4510	+
4511	+	f = new CompletableFuture<>();
4512	+	f.acceptEither(incomplete, x -> {});
4513	+	f.complete(null);
4514	+
4515	+	f = new CompletableFuture<>();
4516	+	f.applyToEither(incomplete, x -> x);
4517	+	f.complete(null);
4518	+
4519	+	f = new CompletableFuture<>();
4520	+	CompletableFuture.anyOf(f, incomplete);
4521	+	f.complete(null);
4522	+	}
4523	+
4524	+	for (int i = 0; i < n; i++) {
4525	+	f = new CompletableFuture<>();
4526	+	incomplete.runAfterEither(f, () -> {});
4527	+	f.complete(null);
4528	+
4529	+	f = new CompletableFuture<>();
4530	+	incomplete.acceptEither(f, x -> {});
4531	+	f.complete(null);
4532	+
4533	+	f = new CompletableFuture<>();
4534	+	incomplete.applyToEither(f, x -> x);
4535	+	f.complete(null);
4536	+
4537	+	f = new CompletableFuture<>();
4538	+	CompletableFuture.anyOf(incomplete, f);
4539	+	f.complete(null);
4540	+	}
4541	+	}
4542	+
4543	+	/**
4544	+	* Reproduction recipe for:
4545	+	* 8160402: Garbage retention with CompletableFuture.anyOf
4546	+	* cvs update -D '2016-05-01' ./src/main/java/util/concurrent/CompletableFuture.java && ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testAnyOfGarbageRetention tck; cvs update -A
4547	+	*/
4548	+	public void testAnyOfGarbageRetention() throws Throwable {
4549	+	for (Integer v : new Integer[] { 1, null })
4550	+	{
4551	+	final int n = expensiveTests ? 100_000 : 10;
4552	+	CompletableFuture<Integer>[] fs
4553	+	= (CompletableFuture<Integer>[]) new CompletableFuture<?>[100];
4554	+	for (int i = 0; i < fs.length; i++)
4555	+	fs[i] = new CompletableFuture<>();
4556	+	fs[fs.length - 1].complete(v);
4557	+	for (int i = 0; i < n; i++)
4558	+	checkCompletedNormally(CompletableFuture.anyOf(fs), v);
4559	+	}}
4560	+
4561	+	/**
4562	+	* Checks for garbage retention with allOf.
4563	+	*
4564	+	* As of 2016-07, fails with OOME:
4565	+	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledAllOfGarbageRetention tck
4566	+	*/
4567	+	public void testCancelledAllOfGarbageRetention() throws Throwable {
4568	+	final int n = expensiveTests ? 100_000 : 10;
4569	+	CompletableFuture<Integer>[] fs
4570	+	= (CompletableFuture<Integer>[]) new CompletableFuture<?>[100];
4571	+	for (int i = 0; i < fs.length; i++)
4572	+	fs[i] = new CompletableFuture<>();
4573	+	for (int i = 0; i < n; i++)
4574	+	assertTrue(CompletableFuture.allOf(fs).cancel(false));
4575	+	}
4576	+
4577	+	/**
4578	+	* Checks for garbage retention when a dependent future is
4579	+	* cancelled and garbage-collected.
4580	+	* 8161600: Garbage retention when source CompletableFutures are never completed
4581	+	*
4582	+	* As of 2016-07, fails with OOME:
4583	+	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledGarbageRetention tck
4584	+	*/
4585	+	public void testCancelledGarbageRetention() throws Throwable {
4586	+	final int n = expensiveTests ? 100_000 : 10;
4587	+	CompletableFuture<Integer> neverCompleted = new CompletableFuture<>();
4588	+	for (int i = 0; i < n; i++)
4589	+	assertTrue(neverCompleted.thenRun(() -> {}).cancel(true));
4590	+	}
4591	+
4592	+	/**
4593	+	* Checks for garbage retention when MinimalStage.toCompletableFuture()
4594	+	* is invoked many times.
4595	+	* 8161600: Garbage retention when source CompletableFutures are never completed
4596	+	*
4597	+	* As of 2016-07, fails with OOME:
4598	+	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testToCompletableFutureGarbageRetention tck
4599	+	*/
4600	+	public void testToCompletableFutureGarbageRetention() throws Throwable {
4601	+	final int n = expensiveTests ? 900_000 : 10;
4602	+	CompletableFuture<Integer> neverCompleted = new CompletableFuture<>();
4603	+	CompletionStage minimal = neverCompleted.minimalCompletionStage();
4604	+	for (int i = 0; i < n; i++)
4605	+	assertTrue(minimal.toCompletableFuture().cancel(true));
4606	+	}
4607	+
4608	+	//     static <U> U join(CompletionStage<U> stage) {
4609	+	//         CompletableFuture<U> f = new CompletableFuture<>();
4610	+	//         stage.whenComplete((v, ex) -> {
4611	+	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
4612	+	//         });
4613	+	//         return f.join();
4614	+	//     }
4615	+
4616	+	//     static <U> boolean isDone(CompletionStage<U> stage) {
4617	+	//         CompletableFuture<U> f = new CompletableFuture<>();
4618	+	//         stage.whenComplete((v, ex) -> {
4619	+	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
4620	+	//         });
4621	+	//         return f.isDone();
4622	+	//     }
4623	+
4624	+	//     static <U> U join2(CompletionStage<U> stage) {
4625	+	//         return stage.toCompletableFuture().copy().join();
4626	+	//     }
4627	+
4628	+	//     static <U> boolean isDone2(CompletionStage<U> stage) {
4629	+	//         return stage.toCompletableFuture().copy().isDone();
4630	+	//     }
4631	+
4632	+	// For testing default implementations
4633	+	// Only non-default interface methods defined.
4634	+	static final class DelegatedCompletionStage<T> implements CompletionStage<T> {
4635	+	final CompletableFuture<T> cf;
4636	+	DelegatedCompletionStage(CompletableFuture<T> cf) { this.cf = cf; }
4637	+	public CompletableFuture<T> toCompletableFuture() {
4638	+	return cf; }
4639	+	public CompletionStage<Void> thenRun
4640	+	(Runnable action) {
4641	+	return cf.thenRun(action); }
4642	+	public CompletionStage<Void> thenRunAsync
4643	+	(Runnable action) {
4644	+	return cf.thenRunAsync(action); }
4645	+	public CompletionStage<Void> thenRunAsync
4646	+	(Runnable action,
4647	+	Executor executor) {
4648	+	return cf.thenRunAsync(action, executor); }
4649	+	public CompletionStage<Void> thenAccept
4650	+	(Consumer<? super T> action) {
4651	+	return cf.thenAccept(action); }
4652	+	public CompletionStage<Void> thenAcceptAsync
4653	+	(Consumer<? super T> action) {
4654	+	return cf.thenAcceptAsync(action); }
4655	+	public CompletionStage<Void> thenAcceptAsync
4656	+	(Consumer<? super T> action,
4657	+	Executor executor) {
4658	+	return cf.thenAcceptAsync(action, executor); }
4659	+	public <U> CompletionStage<U> thenApply
4660	+	(Function<? super T,? extends U> a) {
4661	+	return cf.thenApply(a); }
4662	+	public <U> CompletionStage<U> thenApplyAsync
4663	+	(Function<? super T,? extends U> fn) {
4664	+	return cf.thenApplyAsync(fn); }
4665	+	public <U> CompletionStage<U> thenApplyAsync
4666	+	(Function<? super T,? extends U> fn,
4667	+	Executor executor) {
4668	+	return cf.thenApplyAsync(fn, executor); }
4669	+	public <U,V> CompletionStage<V> thenCombine
4670	+	(CompletionStage<? extends U> other,
4671	+	BiFunction<? super T,? super U,? extends V> fn) {
4672	+	return cf.thenCombine(other, fn); }
4673	+	public <U,V> CompletionStage<V> thenCombineAsync
4674	+	(CompletionStage<? extends U> other,
4675	+	BiFunction<? super T,? super U,? extends V> fn) {
4676	+	return cf.thenCombineAsync(other, fn); }
4677	+	public <U,V> CompletionStage<V> thenCombineAsync
4678	+	(CompletionStage<? extends U> other,
4679	+	BiFunction<? super T,? super U,? extends V> fn,
4680	+	Executor executor) {
4681	+	return cf.thenCombineAsync(other, fn, executor); }
4682	+	public <U> CompletionStage<Void> thenAcceptBoth
4683	+	(CompletionStage<? extends U> other,
4684	+	BiConsumer<? super T, ? super U> action) {
4685	+	return cf.thenAcceptBoth(other, action); }
4686	+	public <U> CompletionStage<Void> thenAcceptBothAsync
4687	+	(CompletionStage<? extends U> other,
4688	+	BiConsumer<? super T, ? super U> action) {
4689	+	return cf.thenAcceptBothAsync(other, action); }
4690	+	public <U> CompletionStage<Void> thenAcceptBothAsync
4691	+	(CompletionStage<? extends U> other,
4692	+	BiConsumer<? super T, ? super U> action,
4693	+	Executor executor) {
4694	+	return cf.thenAcceptBothAsync(other, action, executor); }
4695	+	public CompletionStage<Void> runAfterBoth
4696	+	(CompletionStage<?> other,
4697	+	Runnable action) {
4698	+	return cf.runAfterBoth(other, action); }
4699	+	public CompletionStage<Void> runAfterBothAsync
4700	+	(CompletionStage<?> other,
4701	+	Runnable action) {
4702	+	return cf.runAfterBothAsync(other, action); }
4703	+	public CompletionStage<Void> runAfterBothAsync
4704	+	(CompletionStage<?> other,
4705	+	Runnable action,
4706	+	Executor executor) {
4707	+	return cf.runAfterBothAsync(other, action, executor); }
4708	+	public <U> CompletionStage<U> applyToEither
4709	+	(CompletionStage<? extends T> other,
4710	+	Function<? super T, U> fn) {
4711	+	return cf.applyToEither(other, fn); }
4712	+	public <U> CompletionStage<U> applyToEitherAsync
4713	+	(CompletionStage<? extends T> other,
4714	+	Function<? super T, U> fn) {
4715	+	return cf.applyToEitherAsync(other, fn); }
4716	+	public <U> CompletionStage<U> applyToEitherAsync
4717	+	(CompletionStage<? extends T> other,
4718	+	Function<? super T, U> fn,
4719	+	Executor executor) {
4720	+	return cf.applyToEitherAsync(other, fn, executor); }
4721	+	public CompletionStage<Void> acceptEither
4722	+	(CompletionStage<? extends T> other,
4723	+	Consumer<? super T> action) {
4724	+	return cf.acceptEither(other, action); }
4725	+	public CompletionStage<Void> acceptEitherAsync
4726	+	(CompletionStage<? extends T> other,
4727	+	Consumer<? super T> action) {
4728	+	return cf.acceptEitherAsync(other, action); }
4729	+	public CompletionStage<Void> acceptEitherAsync
4730	+	(CompletionStage<? extends T> other,
4731	+	Consumer<? super T> action,
4732	+	Executor executor) {
4733	+	return cf.acceptEitherAsync(other, action, executor); }
4734	+	public CompletionStage<Void> runAfterEither
4735	+	(CompletionStage<?> other,
4736	+	Runnable action) {
4737	+	return cf.runAfterEither(other, action); }
4738	+	public CompletionStage<Void> runAfterEitherAsync
4739	+	(CompletionStage<?> other,
4740	+	Runnable action) {
4741	+	return cf.runAfterEitherAsync(other, action); }
4742	+	public CompletionStage<Void> runAfterEitherAsync
4743	+	(CompletionStage<?> other,
4744	+	Runnable action,
4745	+	Executor executor) {
4746	+	return cf.runAfterEitherAsync(other, action, executor); }
4747	+	public <U> CompletionStage<U> thenCompose
4748	+	(Function<? super T, ? extends CompletionStage<U>> fn) {
4749	+	return cf.thenCompose(fn); }
4750	+	public <U> CompletionStage<U> thenComposeAsync
4751	+	(Function<? super T, ? extends CompletionStage<U>> fn) {
4752	+	return cf.thenComposeAsync(fn); }
4753	+	public <U> CompletionStage<U> thenComposeAsync
4754	+	(Function<? super T, ? extends CompletionStage<U>> fn,
4755	+	Executor executor) {
4756	+	return cf.thenComposeAsync(fn, executor); }
4757	+	public <U> CompletionStage<U> handle
4758	+	(BiFunction<? super T, Throwable, ? extends U> fn) {
4759	+	return cf.handle(fn); }
4760	+	public <U> CompletionStage<U> handleAsync
4761	+	(BiFunction<? super T, Throwable, ? extends U> fn) {
4762	+	return cf.handleAsync(fn); }
4763	+	public <U> CompletionStage<U> handleAsync
4764	+	(BiFunction<? super T, Throwable, ? extends U> fn,
4765	+	Executor executor) {
4766	+	return cf.handleAsync(fn, executor); }
4767	+	public CompletionStage<T> whenComplete
4768	+	(BiConsumer<? super T, ? super Throwable> action) {
4769	+	return cf.whenComplete(action); }
4770	+	public CompletionStage<T> whenCompleteAsync
4771	+	(BiConsumer<? super T, ? super Throwable> action) {
4772	+	return cf.whenCompleteAsync(action); }
4773	+	public CompletionStage<T> whenCompleteAsync
4774	+	(BiConsumer<? super T, ? super Throwable> action,
4775	+	Executor executor) {
4776	+	return cf.whenCompleteAsync(action, executor); }
4777	+	public CompletionStage<T> exceptionally
4778	+	(Function<Throwable, ? extends T> fn) {
4779	+	return cf.exceptionally(fn); }
4780	+	}
4781	+
4782	+	/**
4783	+	* default-implemented exceptionallyAsync action completes with
4784	+	* function value on source exception
4785	+	*/
4786	+	public void testDefaulExceptionallyAsync_exceptionalCompletion() {
4787	+	for (boolean createIncomplete : new boolean[] { true, false })
4788	+	for (Integer v1 : new Integer[] { 1, null })
4789	+	{
4790	+	final AtomicInteger a = new AtomicInteger(0);
4791	+	final CFException ex = new CFException();
4792	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4793	+	final DelegatedCompletionStage<Integer> d =
4794	+	new DelegatedCompletionStage<Integer>(f);
4795	+	if (!createIncomplete) f.completeExceptionally(ex);
4796	+	final CompletionStage<Integer> g = d.exceptionallyAsync
4797	+	((Throwable t) -> {
4798	+	threadAssertSame(t, ex);
4799	+	a.getAndIncrement();
4800	+	return v1;
4801	+	});
4802	+	if (createIncomplete) f.completeExceptionally(ex);
4803	+
4804	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4805	+	assertEquals(1, a.get());
4806	+	}}
4807	+
4808	+	/**
4809	+	* Under default implementation, if an "exceptionally action"
4810	+	* throws an exception, it completes exceptionally with that
4811	+	* exception
4812	+	*/
4813	+	public void testDefaulExceptionallyAsync_exceptionalCompletionActionFailed() {
4814	+	for (boolean createIncomplete : new boolean[] { true, false })
4815	+	{
4816	+	final AtomicInteger a = new AtomicInteger(0);
4817	+	final CFException ex1 = new CFException();
4818	+	final CFException ex2 = new CFException();
4819	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4820	+	final DelegatedCompletionStage<Integer> d =
4821	+	new DelegatedCompletionStage<Integer>(f);
4822	+	if (!createIncomplete) f.completeExceptionally(ex1);
4823	+	final CompletionStage<Integer> g = d.exceptionallyAsync
4824	+	((Throwable t) -> {
4825	+	threadAssertSame(t, ex1);
4826	+	a.getAndIncrement();
4827	+	throw ex2;
4828	+	});
4829	+	if (createIncomplete) f.completeExceptionally(ex1);
4830	+
4831	+	checkCompletedWithWrappedException(g.toCompletableFuture(), ex2);
4832	+	checkCompletedExceptionally(f, ex1);
4833	+	checkCompletedExceptionally(d.toCompletableFuture(), ex1);
4834	+	assertEquals(1, a.get());
4835	+	}}
4836	+
4837	+	/**
4838	+	* default exceptionallyCompose result completes normally after normal
4839	+	* completion of source
4840	+	*/
4841	+	public void testDefaultExceptionallyCompose_normalCompletion() {
4842	+	for (boolean createIncomplete : new boolean[] { true, false })
4843	+	for (Integer v1 : new Integer[] { 1, null })
4844	+	{
4845	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4846	+	final ExceptionalCompletableFutureFunction r =
4847	+	new ExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4848	+	final DelegatedCompletionStage<Integer> d =
4849	+	new DelegatedCompletionStage<Integer>(f);
4850	+	if (!createIncomplete) assertTrue(f.complete(v1));
4851	+	final CompletionStage<Integer> g = d.exceptionallyCompose(r);
4852	+	if (createIncomplete) assertTrue(f.complete(v1));
4853	+
4854	+	checkCompletedNormally(f, v1);
4855	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4856	+	r.assertNotInvoked();
4857	+	}}
4858	+
4859	+	/**
4860	+	* default-implemented exceptionallyCompose result completes
4861	+	* normally after exceptional completion of source
4862	+	*/
4863	+	public void testDefaultExceptionallyCompose_exceptionalCompletion() {
4864	+	for (boolean createIncomplete : new boolean[] { true, false })
4865	+	{
4866	+	final CFException ex = new CFException();
4867	+	final ExceptionalCompletableFutureFunction r =
4868	+	new ExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4869	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4870	+	final DelegatedCompletionStage<Integer> d =
4871	+	new DelegatedCompletionStage<Integer>(f);
4872	+	if (!createIncomplete) f.completeExceptionally(ex);
4873	+	final CompletionStage<Integer> g = d.exceptionallyCompose(r);
4874	+	if (createIncomplete) f.completeExceptionally(ex);
4875	+
4876	+	checkCompletedExceptionally(f, ex);
4877	+	checkCompletedNormally(g.toCompletableFuture(), r.value);
4878	+	r.assertInvoked();
4879	+	}}
4880	+
4881	+	/**
4882	+	* default-implemented exceptionallyCompose completes
4883	+	* exceptionally on exception if action does
4884	+	*/
4885	+	public void testDefaultExceptionallyCompose_actionFailed() {
4886	+	for (boolean createIncomplete : new boolean[] { true, false })
4887	+	for (Integer v1 : new Integer[] { 1, null })
4888	+	{
4889	+	final CFException ex = new CFException();
4890	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4891	+	final FailingExceptionalCompletableFutureFunction r
4892	+	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4893	+	final DelegatedCompletionStage<Integer> d =
4894	+	new DelegatedCompletionStage<Integer>(f);
4895	+	if (!createIncomplete) f.completeExceptionally(ex);
4896	+	final CompletionStage<Integer> g = d.exceptionallyCompose(r);
4897	+	if (createIncomplete) f.completeExceptionally(ex);
4898	+
4899	+	checkCompletedExceptionally(f, ex);
4900	+	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
4901	+	r.assertInvoked();
4902	+	}}
4903	+
4904	+	/**
4905	+	* default exceptionallyComposeAsync result completes normally after normal
4906	+	* completion of source
4907	+	*/
4908	+	public void testDefaultExceptionallyComposeAsync_normalCompletion() {
4909	+	for (boolean createIncomplete : new boolean[] { true, false })
4910	+	for (Integer v1 : new Integer[] { 1, null })
4911	+	{
4912	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4913	+	final ExceptionalCompletableFutureFunction r =
4914	+	new ExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
4915	+	final DelegatedCompletionStage<Integer> d =
4916	+	new DelegatedCompletionStage<Integer>(f);
4917	+	if (!createIncomplete) assertTrue(f.complete(v1));
4918	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
4919	+	if (createIncomplete) assertTrue(f.complete(v1));
4920	+
4921	+	checkCompletedNormally(f, v1);
4922	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4923	+	r.assertNotInvoked();
4924	+	}}
4925	+
4926	+	/**
4927	+	* default-implemented exceptionallyComposeAsync result completes
4928	+	* normally after exceptional completion of source
4929	+	*/
4930	+	public void testDefaultExceptionallyComposeAsync_exceptionalCompletion() {
4931	+	for (boolean createIncomplete : new boolean[] { true, false })
4932	+	{
4933	+	final CFException ex = new CFException();
4934	+	final ExceptionalCompletableFutureFunction r =
4935	+	new ExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
4936	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4937	+	final DelegatedCompletionStage<Integer> d =
4938	+	new DelegatedCompletionStage<Integer>(f);
4939	+	if (!createIncomplete) f.completeExceptionally(ex);
4940	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
4941	+	if (createIncomplete) f.completeExceptionally(ex);
4942	+
4943	+	checkCompletedExceptionally(f, ex);
4944	+	checkCompletedNormally(g.toCompletableFuture(), r.value);
4945	+	r.assertInvoked();
4946	+	}}
4947	+
4948	+	/**
4949	+	* default-implemented exceptionallyComposeAsync completes
4950	+	* exceptionally on exception if action does
4951	+	*/
4952	+	public void testDefaultExceptionallyComposeAsync_actionFailed() {
4953	+	for (boolean createIncomplete : new boolean[] { true, false })
4954	+	for (Integer v1 : new Integer[] { 1, null })
4955	+	{
4956	+	final CFException ex = new CFException();
4957	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4958	+	final FailingExceptionalCompletableFutureFunction r
4959	+	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
4960	+	final DelegatedCompletionStage<Integer> d =
4961	+	new DelegatedCompletionStage<Integer>(f);
4962	+	if (!createIncomplete) f.completeExceptionally(ex);
4963	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
4964	+	if (createIncomplete) f.completeExceptionally(ex);
4965	+
4966	+	checkCompletedExceptionally(f, ex);
4967	+	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
4968	+	r.assertInvoked();
4969	+	}}
4970	+
4971	+
4972	+	/**
4973	+	* default exceptionallyComposeAsync result completes normally after normal
4974	+	* completion of source
4975	+	*/
4976	+	public void testDefaultExceptionallyComposeAsyncExecutor_normalCompletion() {
4977	+	for (boolean createIncomplete : new boolean[] { true, false })
4978	+	for (Integer v1 : new Integer[] { 1, null })
4979	+	{
4980	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4981	+	final ExceptionalCompletableFutureFunction r =
4982	+	new ExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
4983	+	final DelegatedCompletionStage<Integer> d =
4984	+	new DelegatedCompletionStage<Integer>(f);
4985	+	if (!createIncomplete) assertTrue(f.complete(v1));
4986	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r,  new ThreadExecutor());
4987	+	if (createIncomplete) assertTrue(f.complete(v1));
4988	+
4989	+	checkCompletedNormally(f, v1);
4990	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4991	+	r.assertNotInvoked();
4992	+	}}
4993	+
4994	+	/**
4995	+	* default-implemented exceptionallyComposeAsync result completes
4996	+	* normally after exceptional completion of source
4997	+	*/
4998	+	public void testDefaultExceptionallyComposeAsyncExecutor_exceptionalCompletion() {
4999	+	for (boolean createIncomplete : new boolean[] { true, false })
5000	+	{
5001	+	final CFException ex = new CFException();
5002	+	final ExceptionalCompletableFutureFunction r =
5003	+	new ExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
5004	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
5005	+	final DelegatedCompletionStage<Integer> d =
5006	+	new DelegatedCompletionStage<Integer>(f);
5007	+	if (!createIncomplete) f.completeExceptionally(ex);
5008	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r,  new ThreadExecutor());
5009	+	if (createIncomplete) f.completeExceptionally(ex);
5010	+
5011	+	checkCompletedExceptionally(f, ex);
5012	+	checkCompletedNormally(g.toCompletableFuture(), r.value);
5013	+	r.assertInvoked();
5014	+	}}
5015	+
5016	+	/**
5017	+	* default-implemented exceptionallyComposeAsync completes
5018	+	* exceptionally on exception if action does
5019	+	*/
5020	+	public void testDefaultExceptionallyComposeAsyncExecutor_actionFailed() {
5021	+	for (boolean createIncomplete : new boolean[] { true, false })
5022	+	for (Integer v1 : new Integer[] { 1, null })
5023	+	{
5024	+	final CFException ex = new CFException();
5025	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
5026	+	final FailingExceptionalCompletableFutureFunction r
5027	+	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
5028	+	final DelegatedCompletionStage<Integer> d =
5029	+	new DelegatedCompletionStage<Integer>(f);
5030	+	if (!createIncomplete) f.completeExceptionally(ex);
5031	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r,  new ThreadExecutor());
5032	+	if (createIncomplete) f.completeExceptionally(ex);
5033	+
5034	+	checkCompletedExceptionally(f, ex);
5035	+	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
5036	+	r.assertInvoked();
5037	+	}}
5038	+
5039		}

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