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Comparing jsr166/src/test/tck/CompletableFutureTest.java (file contents):
Revision 1.11 by jsr166, Sun Mar 31 18:14:19 2013 UTC vs.
Revision 1.224 by dl, Tue Jan 26 13:33:05 2021 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.join());
80	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
81	<	try {
82	<	assertEquals(value, f.getNow(null));
83	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
63	<	try {
64	<	assertEquals(value, f.get());
65	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
77	>	<T> void checkCompletedNormally(CompletableFuture<T> f, T expectedValue) {
78	>	checkTimedGet(f, expectedValue);
79	>
80	>	mustEqual(expectedValue, f.join());
81	>	mustEqual(expectedValue, f.getNow(null));
82	>
83	>	T result = null;
84		try {
85	<	assertEquals(value, f.get(0L, SECONDS));
85	>	result = f.get();
86		} catch (Throwable fail) { threadUnexpectedException(fail); }
87	+	mustEqual(expectedValue, result);
88	+
89		assertTrue(f.isDone());
90		assertFalse(f.isCancelled());
91	<	assertTrue(f.toString().contains("[Completed normally]"));
91	>	assertFalse(f.isCompletedExceptionally());
92	>	assertTrue(f.toString().matches(".*\\[.*Completed normally.*\\]"));
93		}
94
95	<	void checkCompletedWithWrappedCFException(CompletableFuture<?> f) {
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	>	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);
86	<	}
87	<	try {
88	<	f.get();
89	<	shouldThrow();
90	<	} catch (ExecutionException success) {
91	<	assertTrue(success.getCause() instanceof CFException);
135	>	assertSame(cause, success.getCause());
136		} catch (Throwable fail) { threadUnexpectedException(fail); }
137	+
138		try {
139	<	f.get(0L, SECONDS);
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.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.join();
106	<	shouldThrow();
107	<	} catch (CancellationException success) {}
108	<	try {
109	<	f.getNow(null);
110	<	shouldThrow();
111	<	} catch (CancellationException success) {}
112	<	try {
113	<	f.get();
114	<	shouldThrow();
115	<	} catch (CancellationException success) {
116	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
117	<	try {
118	<	f.get(0L, SECONDS);
178	>	f.get(LONG_DELAY_MS, MILLISECONDS);
179		shouldThrow();
180		} catch (CancellationException success) {
181		} catch (Throwable fail) { threadUnexpectedException(fail); }
182	<	assertTrue(f.isDone());
123	<	assertTrue(f.isCancelled());
124	<	}
182	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
183
126	–	void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) {
184		try {
185		f.join();
186		shouldThrow();
187	<	} catch (CompletionException success) {
131	<	assertTrue(success.getCause() instanceof CancellationException);
132	<	}
187	>	} catch (CancellationException success) {}
188		try {
189		f.getNow(null);
190		shouldThrow();
191	<	} catch (CompletionException success) {
137	<	assertTrue(success.getCause() instanceof CancellationException);
138	<	}
191	>	} catch (CancellationException success) {}
192		try {
193		f.get();
194		shouldThrow();
195	<	} catch (ExecutionException success) {
143	<	assertTrue(success.getCause() instanceof CancellationException);
144	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
145	<	try {
146	<	f.get(0L, SECONDS);
147	<	shouldThrow();
148	<	} catch (ExecutionException success) {
149	<	assertTrue(success.getCause() instanceof CancellationException);
195	>	} catch (CancellationException success) {
196		} catch (Throwable fail) { threadUnexpectedException(fail); }
197	+
198	+	assertTrue(exceptionalCompletion(f) instanceof CancellationException);
199	+
200		assertTrue(f.isDone());
201	<	assertFalse(f.isCancelled());
201	>	assertTrue(f.isCompletedExceptionally());
202	>	assertTrue(f.isCancelled());
203	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
204		}
205
206		/**
#	Line 157 | Line 208 | public class CompletableFutureTest exten
208		* by methods isDone, isCancelled, and getNow
209		*/
210		public void testConstructor() {
211	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
211	>	CompletableFuture<Item> f = new CompletableFuture<>();
212		checkIncomplete(f);
213		}
214
#	Line 166 | Line 217 | public class CompletableFutureTest exten
217		* isCancelled, join, get, and getNow
218		*/
219		public void testComplete() {
220	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
220	>	for (Item v1 : new Item[] { one, null })
221	>	{
222	>	CompletableFuture<Item> f = new CompletableFuture<>();
223		checkIncomplete(f);
224	<	f.complete(one);
225	<	checkCompletedNormally(f, one);
226	<	}
224	>	assertTrue(f.complete(v1));
225	>	assertFalse(f.complete(v1));
226	>	checkCompletedNormally(f, v1);
227	>	}}
228
229		/**
230		* completeExceptionally completes exceptionally, as indicated by
231		* methods isDone, isCancelled, join, get, and getNow
232		*/
233		public void testCompleteExceptionally() {
234	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
234	>	CompletableFuture<Item> 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 188 | Line 243 | public class CompletableFutureTest exten
243		* methods isDone, isCancelled, join, get, and getNow
244		*/
245		public void testCancel() {
246	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
246	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
247	>	{
248	>	CompletableFuture<Item> f = new CompletableFuture<>();
249		checkIncomplete(f);
250	<	assertTrue(f.cancel(true));
250	>	assertTrue(f.cancel(mayInterruptIfRunning));
251	>	assertTrue(f.cancel(mayInterruptIfRunning));
252	>	assertTrue(f.cancel(!mayInterruptIfRunning));
253		checkCancelled(f);
254	<	}
254	>	}}
255
256		/**
257		* obtrudeValue forces completion with given value
258		*/
259		public void testObtrudeValue() {
260	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
260	>	CompletableFuture<Item> f = new CompletableFuture<>();
261		checkIncomplete(f);
262	<	f.complete(one);
262	>	assertTrue(f.complete(one));
263		checkCompletedNormally(f, one);
264		f.obtrudeValue(three);
265		checkCompletedNormally(f, three);
266		f.obtrudeValue(two);
267		checkCompletedNormally(f, two);
268	<	f = new CompletableFuture<Integer>();
268	>	f = new CompletableFuture<>();
269		f.obtrudeValue(three);
270		checkCompletedNormally(f, three);
271	<	f = new CompletableFuture<Integer>();
271	>	f.obtrudeValue(null);
272	>	checkCompletedNormally(f, null);
273	>	f = new CompletableFuture<>();
274		f.completeExceptionally(new CFException());
275		f.obtrudeValue(four);
276		checkCompletedNormally(f, four);
#	Line 219 | Line 280 | public class CompletableFutureTest exten
280		* obtrudeException forces completion with given exception
281		*/
282		public void testObtrudeException() {
283	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
284	<	checkIncomplete(f);
285	<	f.complete(one);
286	<	checkCompletedNormally(f, one);
287	<	f.obtrudeException(new CFException());
288	<	checkCompletedWithWrappedCFException(f);
289	<	f = new CompletableFuture<Integer>();
290	<	f.obtrudeException(new CFException());
291	<	checkCompletedWithWrappedCFException(f);
292	<	f = new CompletableFuture<Integer>();
283	>	for (Item v1 : new Item[] { one, null })
284	>	{
285	>	CFException ex;
286	>	CompletableFuture<Item> f;
287	>
288	>	f = new CompletableFuture<>();
289	>	assertTrue(f.complete(v1));
290	>	for (int i = 0; i < 2; i++) {
291	>	f.obtrudeException(ex = new CFException());
292	>	checkCompletedExceptionally(f, ex);
293	>	}
294	>
295	>	f = new CompletableFuture<>();
296	>	for (int i = 0; i < 2; i++) {
297	>	f.obtrudeException(ex = new CFException());
298	>	checkCompletedExceptionally(f, ex);
299	>	}
300	>
301	>	f = new CompletableFuture<>();
302		f.completeExceptionally(new CFException());
303	<	f.obtrudeValue(four);
304	<	checkCompletedNormally(f, four);
305	<	f.obtrudeException(new CFException());
306	<	checkCompletedWithWrappedCFException(f);
307	<	}
303	>	f.obtrudeValue(v1);
304	>	checkCompletedNormally(f, v1);
305	>	f.obtrudeException(ex = new CFException());
306	>	checkCompletedExceptionally(f, ex);
307	>	f.completeExceptionally(new CFException());
308	>	checkCompletedExceptionally(f, ex);
309	>	assertFalse(f.complete(v1));
310	>	checkCompletedExceptionally(f, ex);
311	>	}}
312
313		/**
314		* getNumberOfDependents returns number of dependent tasks
315		*/
316		public void testGetNumberOfDependents() {
317	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
318	<	assertEquals(f.getNumberOfDependents(), 0);
319	<	CompletableFuture g = f.thenRun(new Noop());
320	<	assertEquals(f.getNumberOfDependents(), 1);
321	<	assertEquals(g.getNumberOfDependents(), 0);
322	<	CompletableFuture h = f.thenRun(new Noop());
323	<	assertEquals(f.getNumberOfDependents(), 2);
324	<	f.complete(1);
317	>	for (ExecutionMode m : ExecutionMode.values())
318	>	for (Item v1 : new Item[] { one, null })
319	>	{
320	>	CompletableFuture<Item> f = new CompletableFuture<>();
321	>	mustEqual(0, f.getNumberOfDependents());
322	>	final CompletableFuture<Void> g = m.thenRun(f, new Noop(m));
323	>	mustEqual(1, f.getNumberOfDependents());
324	>	mustEqual(0, g.getNumberOfDependents());
325	>	final CompletableFuture<Void> h = m.thenRun(f, new Noop(m));
326	>	mustEqual(2, f.getNumberOfDependents());
327	>	mustEqual(0, h.getNumberOfDependents());
328	>	assertTrue(f.complete(v1));
329		checkCompletedNormally(g, null);
330	<	assertEquals(f.getNumberOfDependents(), 0);
331	<	assertEquals(g.getNumberOfDependents(), 0);
332	<	}
333	<
330	>	checkCompletedNormally(h, null);
331	>	mustEqual(0, f.getNumberOfDependents());
332	>	mustEqual(0, g.getNumberOfDependents());
333	>	mustEqual(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	>	mustEqual(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	>	mustEqual(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 279 | Line 381 | public class CompletableFutureTest exten
381		checkCompletedNormally(f, "test");
382		}
383
384	<	static final Supplier<Integer> supplyOne =
385	<	() -> Integer.valueOf(1);
386	<	static final Function<Integer, Integer> inc =
387	<	(Integer x) -> Integer.valueOf(x.intValue() + 1);
388	<	static final BiFunction<Integer, Integer, Integer> add =
389	<	(Integer x, Integer y) -> Integer.valueOf(x.intValue() + y.intValue());
390	<	static final class IncAction implements Consumer<Integer> {
391	<	int value;
392	<	public void accept(Integer x) { value = x.intValue() + 1; }
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	>	mustEqual(0, invocationCount++);
391	>	}
392	>	void assertNotInvoked() { mustEqual(0, invocationCount); }
393	>	void assertInvoked() { mustEqual(1, invocationCount); }
394		}
395	<	static final class AddAction implements BiConsumer<Integer, Integer> {
396	<	int value;
397	<	public void accept(Integer x, Integer y) {
398	<	value = x.intValue() + y.intValue();
395	>
396	>	abstract static class CheckedItemAction extends CheckedAction {
397	>	Item value;
398	>	CheckedItemAction(ExecutionMode m) { super(m); }
399	>	void assertValue(Item expected) {
400	>	assertInvoked();
401	>	mustEqual(expected, value);
402		}
403		}
404	<	static final class Noop implements Runnable {
405	<	boolean ran;
406	<	public void run() { ran = true; }
404	>
405	>	static class ItemSupplier extends CheckedAction
406	>	implements Supplier<Item>
407	>	{
408	>	final Item value;
409	>	ItemSupplier(ExecutionMode m, Item value) {
410	>	super(m);
411	>	this.value = value;
412	>	}
413	>	public Item get() {
414	>	invoked();
415	>	return value;
416	>	}
417	>	}
418	>
419	>	// A function that handles and produces null values as well.
420	>	static Item inc(Item x) {
421	>	return (x == null) ? null : new Item(x.value + 1);
422		}
423
424	<	static final class FailingSupplier implements Supplier<Integer> {
425	<	boolean ran;
426	<	public Integer get() { ran = true; throw new CFException(); }
424	>	static class NoopConsumer extends CheckedItemAction
425	>	implements Consumer<Item>
426	>	{
427	>	NoopConsumer(ExecutionMode m) { super(m); }
428	>	public void accept(Item x) {
429	>	invoked();
430	>	value = x;
431	>	}
432		}
433	<	static final class FailingConsumer implements Consumer<Integer> {
434	<	boolean ran;
435	<	public void accept(Integer x) { ran = true; throw new CFException(); }
433	>
434	>	static class IncFunction extends CheckedItemAction
435	>	implements Function<Item,Item>
436	>	{
437	>	IncFunction(ExecutionMode m) { super(m); }
438	>	public Item apply(Item x) {
439	>	invoked();
440	>	return value = inc(x);
441	>	}
442		}
443	<	static final class FailingBiConsumer implements BiConsumer<Integer, Integer> {
444	<	boolean ran;
445	<	public void accept(Integer x, Integer y) { ran = true; throw new CFException(); }
443	>
444	>	// Choose non-commutative actions for better coverage
445	>	// A non-commutative function that handles and produces null values as well.
446	>	static Item subtract(Item x, Item y) {
447	>	return (x == null && y == null) ? null :
448	>	new Item(((x == null) ? 42 : x.value)
449	>	- ((y == null) ? 99 : y.value));
450		}
451	<	static final class FailingFunction implements Function<Integer, Integer> {
452	<	boolean ran;
453	<	public Integer apply(Integer x) { ran = true; throw new CFException(); }
451	>
452	>	static class SubtractAction extends CheckedItemAction
453	>	implements BiConsumer<Item, Item>
454	>	{
455	>	SubtractAction(ExecutionMode m) { super(m); }
456	>	public void accept(Item x, Item y) {
457	>	invoked();
458	>	value = subtract(x, y);
459	>	}
460		}
461	<	static final class FailingBiFunction implements BiFunction<Integer, Integer, Integer> {
462	<	boolean ran;
463	<	public Integer apply(Integer x, Integer y) { ran = true; throw new CFException(); }
461	>
462	>	static class SubtractFunction extends CheckedItemAction
463	>	implements BiFunction<Item, Item, Item>
464	>	{
465	>	SubtractFunction(ExecutionMode m) { super(m); }
466	>	public Item apply(Item x, Item y) {
467	>	invoked();
468	>	return value = subtract(x, y);
469	>	}
470		}
471	<	static final class FailingNoop implements Runnable {
472	<	boolean ran;
473	<	public void run() { ran = true; throw new CFException(); }
471	>
472	>	static class Noop extends CheckedAction implements Runnable {
473	>	Noop(ExecutionMode m) { super(m); }
474	>	public void run() {
475	>	invoked();
476	>	}
477		}
478
479	<	static final class CompletableFutureInc implements Function<Integer, CompletableFuture<Integer>> {
480	<	public CompletableFuture<Integer> apply(Integer x) {
481	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
482	<	f.complete(Integer.valueOf(x.intValue() + 1));
483	<	return f;
479	>	static class FailingSupplier extends CheckedAction
480	>	implements Supplier<Item>
481	>	{
482	>	final CFException ex;
483	>	FailingSupplier(ExecutionMode m) { super(m); ex = new CFException(); }
484	>	public Item get() {
485	>	invoked();
486	>	throw ex;
487		}
488		}
489
490	<	static final class FailingCompletableFutureFunction implements Function<Integer, CompletableFuture<Integer>> {
491	<	boolean ran;
492	<	public CompletableFuture<Integer> apply(Integer x) {
493	<	ran = true; throw new CFException();
490	>	static class FailingConsumer extends CheckedItemAction
491	>	implements Consumer<Item>
492	>	{
493	>	final CFException ex;
494	>	FailingConsumer(ExecutionMode m) { super(m); ex = new CFException(); }
495	>	public void accept(Item x) {
496	>	invoked();
497	>	value = x;
498	>	throw ex;
499		}
500		}
501
502	<	// Used for explicit executor tests
503	<	static final class ThreadExecutor implements Executor {
504	<	public void execute(Runnable r) {
505	<	new Thread(r).start();
502	>	static class FailingBiConsumer extends CheckedItemAction
503	>	implements BiConsumer<Item, Item>
504	>	{
505	>	final CFException ex;
506	>	FailingBiConsumer(ExecutionMode m) { super(m); ex = new CFException(); }
507	>	public void accept(Item x, Item y) {
508	>	invoked();
509	>	value = subtract(x, y);
510	>	throw ex;
511		}
512		}
513
514	<	static final class ExceptionToInteger implements Function<Throwable, Integer> {
515	<	public Integer apply(Throwable x) { return Integer.valueOf(3); }
514	>	static class FailingFunction extends CheckedItemAction
515	>	implements Function<Item, Item>
516	>	{
517	>	final CFException ex;
518	>	FailingFunction(ExecutionMode m) { super(m); ex = new CFException(); }
519	>	public Item apply(Item x) {
520	>	invoked();
521	>	value = x;
522	>	throw ex;
523	>	}
524	>	}
525	>
526	>	static class FailingBiFunction extends CheckedItemAction
527	>	implements BiFunction<Item, Item, Item>
528	>	{
529	>	final CFException ex;
530	>	FailingBiFunction(ExecutionMode m) { super(m); ex = new CFException(); }
531	>	public Item apply(Item x, Item y) {
532	>	invoked();
533	>	value = subtract(x, y);
534	>	throw ex;
535	>	}
536	>	}
537	>
538	>	static class FailingRunnable extends CheckedAction implements Runnable {
539	>	final CFException ex;
540	>	FailingRunnable(ExecutionMode m) { super(m); ex = new CFException(); }
541	>	public void run() {
542	>	invoked();
543	>	throw ex;
544	>	}
545	>	}
546	>
547	>	static class CompletableFutureInc extends CheckedItemAction
548	>	implements Function<Item, CompletableFuture<Item>>
549	>	{
550	>	CompletableFutureInc(ExecutionMode m) { super(m); }
551	>	public CompletableFuture<Item> apply(Item x) {
552	>	invoked();
553	>	value = x;
554	>	return CompletableFuture.completedFuture(inc(x));
555	>	}
556	>	}
557	>
558	>	static class FailingExceptionalCompletableFutureFunction extends CheckedAction
559	>	implements Function<Throwable, CompletableFuture<Item>>
560	>	{
561	>	final CFException ex;
562	>	FailingExceptionalCompletableFutureFunction(ExecutionMode m) { super(m); ex = new CFException(); }
563	>	public CompletableFuture<Item> apply(Throwable x) {
564	>	invoked();
565	>	throw ex;
566	>	}
567	>	}
568	>
569	>	static class ExceptionalCompletableFutureFunction extends CheckedAction
570	>	implements Function<Throwable, CompletionStage<Item>> {
571	>	final Item value = three;
572	>	ExceptionalCompletableFutureFunction(ExecutionMode m) { super(m); }
573	>	public CompletionStage<Item> apply(Throwable x) {
574	>	invoked();
575	>	return CompletableFuture.completedFuture(value);
576	>	}
577		}
578
579	<	static final class IntegerHandler implements BiFunction<Integer, Throwable, Integer> {
580	<	public Integer apply(Integer x, Throwable t) {
581	<	return (t == null) ? two : three;
579	>	static class FailingCompletableFutureFunction extends CheckedItemAction
580	>	implements Function<Item, CompletableFuture<Item>>
581	>	{
582	>	final CFException ex;
583	>	FailingCompletableFutureFunction(ExecutionMode m) { super(m); ex = new CFException(); }
584	>	public CompletableFuture<Item> apply(Item x) {
585	>	invoked();
586	>	value = x;
587	>	throw ex;
588		}
589		}
590
591	+	static class CountingRejectingExecutor implements Executor {
592	+	final RejectedExecutionException ex = new RejectedExecutionException();
593	+	final AtomicInteger count = new AtomicInteger(0);
594	+	public void execute(Runnable r) {
595	+	count.getAndIncrement();
596	+	throw ex;
597	+	}
598	+	}
599	+
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	+	public void execute(Runnable r) {
609	+	count.getAndIncrement();
610	+	new Thread(tg, r).start();
611	+	}
612	+	}
613	+
614	+	static final boolean defaultExecutorIsCommonPool
615	+	= ForkJoinPool.getCommonPoolParallelism() > 1;
616	+
617	+	/**
618	+	* Permits the testing of parallel code for the 3 different
619	+	* execution modes without copy/pasting all the test methods.
620	+	*/
621	+	enum ExecutionMode {
622	+	SYNC {
623	+	public void checkExecutionMode() {
624	+	assertFalse(ThreadExecutor.startedCurrentThread());
625	+	assertNull(ForkJoinTask.getPool());
626	+	}
627	+	public CompletableFuture<Void> runAsync(Runnable a) {
628	+	throw new UnsupportedOperationException();
629	+	}
630	+	public <U> CompletableFuture<U> supplyAsync(Supplier<U> a) {
631	+	throw new UnsupportedOperationException();
632	+	}
633	+	public <T> CompletableFuture<Void> thenRun
634	+	(CompletableFuture<T> f, Runnable a) {
635	+	return f.thenRun(a);
636	+	}
637	+	public <T> CompletableFuture<Void> thenAccept
638	+	(CompletableFuture<T> f, Consumer<? super T> a) {
639	+	return f.thenAccept(a);
640	+	}
641	+	public <T,U> CompletableFuture<U> thenApply
642	+	(CompletableFuture<T> f, Function<? super T,U> a) {
643	+	return f.thenApply(a);
644	+	}
645	+	public <T,U> CompletableFuture<U> thenCompose
646	+	(CompletableFuture<T> f,
647	+	Function<? super T,? extends CompletionStage<U>> a) {
648	+	return f.thenCompose(a);
649	+	}
650	+	public <T,U> CompletableFuture<U> handle
651	+	(CompletableFuture<T> f,
652	+	BiFunction<? super T,Throwable,? extends U> a) {
653	+	return f.handle(a);
654	+	}
655	+	public <T> CompletableFuture<T> whenComplete
656	+	(CompletableFuture<T> f,
657	+	BiConsumer<? super T,? super Throwable> a) {
658	+	return f.whenComplete(a);
659	+	}
660	+	public <T,U> CompletableFuture<Void> runAfterBoth
661	+	(CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) {
662	+	return f.runAfterBoth(g, a);
663	+	}
664	+	public <T,U> CompletableFuture<Void> thenAcceptBoth
665	+	(CompletableFuture<T> f,
666	+	CompletionStage<? extends U> g,
667	+	BiConsumer<? super T,? super U> a) {
668	+	return f.thenAcceptBoth(g, a);
669	+	}
670	+	public <T,U,V> CompletableFuture<V> thenCombine
671	+	(CompletableFuture<T> f,
672	+	CompletionStage<? extends U> g,
673	+	BiFunction<? super T,? super U,? extends V> a) {
674	+	return f.thenCombine(g, a);
675	+	}
676	+	public <T> CompletableFuture<Void> runAfterEither
677	+	(CompletableFuture<T> f,
678	+	CompletionStage<?> g,
679	+	java.lang.Runnable a) {
680	+	return f.runAfterEither(g, a);
681	+	}
682	+	public <T> CompletableFuture<Void> acceptEither
683	+	(CompletableFuture<T> f,
684	+	CompletionStage<? extends T> g,
685	+	Consumer<? super T> a) {
686	+	return f.acceptEither(g, a);
687	+	}
688	+	public <T,U> CompletableFuture<U> applyToEither
689	+	(CompletableFuture<T> f,
690	+	CompletionStage<? extends T> g,
691	+	Function<? super T,U> a) {
692	+	return f.applyToEither(g, a);
693	+	}
694	+	public <T> CompletableFuture<T> exceptionally
695	+	(CompletableFuture<T> f,
696	+	Function<Throwable, ? extends T> fn) {
697	+	return f.exceptionally(fn);
698	+	}
699	+	public <T> CompletableFuture<T> exceptionallyCompose
700	+	(CompletableFuture<T> f, Function<Throwable, ? extends CompletionStage<T>> fn) {
701	+	return f.exceptionallyCompose(fn);
702	+	}
703	+	},
704	+	ASYNC {
705	+	public void checkExecutionMode() {
706	+	mustEqual(defaultExecutorIsCommonPool,
707	+	(ForkJoinPool.commonPool() == ForkJoinTask.getPool()));
708	+	}
709	+	public CompletableFuture<Void> runAsync(Runnable a) {
710	+	return CompletableFuture.runAsync(a);
711	+	}
712	+	public <U> CompletableFuture<U> supplyAsync(Supplier<U> a) {
713	+	return CompletableFuture.supplyAsync(a);
714	+	}
715	+	public <T> CompletableFuture<Void> thenRun
716	+	(CompletableFuture<T> f, Runnable a) {
717	+	return f.thenRunAsync(a);
718	+	}
719	+	public <T> CompletableFuture<Void> thenAccept
720	+	(CompletableFuture<T> f, Consumer<? super T> a) {
721	+	return f.thenAcceptAsync(a);
722	+	}
723	+	public <T,U> CompletableFuture<U> thenApply
724	+	(CompletableFuture<T> f, Function<? super T,U> a) {
725	+	return f.thenApplyAsync(a);
726	+	}
727	+	public <T,U> CompletableFuture<U> thenCompose
728	+	(CompletableFuture<T> f,
729	+	Function<? super T,? extends CompletionStage<U>> a) {
730	+	return f.thenComposeAsync(a);
731	+	}
732	+	public <T,U> CompletableFuture<U> handle
733	+	(CompletableFuture<T> f,
734	+	BiFunction<? super T,Throwable,? extends U> a) {
735	+	return f.handleAsync(a);
736	+	}
737	+	public <T> CompletableFuture<T> whenComplete
738	+	(CompletableFuture<T> f,
739	+	BiConsumer<? super T,? super Throwable> a) {
740	+	return f.whenCompleteAsync(a);
741	+	}
742	+	public <T,U> CompletableFuture<Void> runAfterBoth
743	+	(CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) {
744	+	return f.runAfterBothAsync(g, a);
745	+	}
746	+	public <T,U> CompletableFuture<Void> thenAcceptBoth
747	+	(CompletableFuture<T> f,
748	+	CompletionStage<? extends U> g,
749	+	BiConsumer<? super T,? super U> a) {
750	+	return f.thenAcceptBothAsync(g, a);
751	+	}
752	+	public <T,U,V> CompletableFuture<V> thenCombine
753	+	(CompletableFuture<T> f,
754	+	CompletionStage<? extends U> g,
755	+	BiFunction<? super T,? super U,? extends V> a) {
756	+	return f.thenCombineAsync(g, a);
757	+	}
758	+	public <T> CompletableFuture<Void> runAfterEither
759	+	(CompletableFuture<T> f,
760	+	CompletionStage<?> g,
761	+	java.lang.Runnable a) {
762	+	return f.runAfterEitherAsync(g, a);
763	+	}
764	+	public <T> CompletableFuture<Void> acceptEither
765	+	(CompletableFuture<T> f,
766	+	CompletionStage<? extends T> g,
767	+	Consumer<? super T> a) {
768	+	return f.acceptEitherAsync(g, a);
769	+	}
770	+	public <T,U> CompletableFuture<U> applyToEither
771	+	(CompletableFuture<T> f,
772	+	CompletionStage<? extends T> g,
773	+	Function<? super T,U> a) {
774	+	return f.applyToEitherAsync(g, a);
775	+	}
776	+	public <T> CompletableFuture<T> exceptionally
777	+	(CompletableFuture<T> f,
778	+	Function<Throwable, ? extends T> fn) {
779	+	return f.exceptionallyAsync(fn);
780	+	}
781	+
782	+	public <T> CompletableFuture<T> exceptionallyCompose
783	+	(CompletableFuture<T> f, Function<Throwable, ? extends CompletionStage<T>> fn) {
784	+	return f.exceptionallyComposeAsync(fn);
785	+	}
786	+
787	+	},
788	+
789	+	EXECUTOR {
790	+	public void checkExecutionMode() {
791	+	assertTrue(ThreadExecutor.startedCurrentThread());
792	+	}
793	+	public CompletableFuture<Void> runAsync(Runnable a) {
794	+	return CompletableFuture.runAsync(a, new ThreadExecutor());
795	+	}
796	+	public <U> CompletableFuture<U> supplyAsync(Supplier<U> a) {
797	+	return CompletableFuture.supplyAsync(a, new ThreadExecutor());
798	+	}
799	+	public <T> CompletableFuture<Void> thenRun
800	+	(CompletableFuture<T> f, Runnable a) {
801	+	return f.thenRunAsync(a, new ThreadExecutor());
802	+	}
803	+	public <T> CompletableFuture<Void> thenAccept
804	+	(CompletableFuture<T> f, Consumer<? super T> a) {
805	+	return f.thenAcceptAsync(a, new ThreadExecutor());
806	+	}
807	+	public <T,U> CompletableFuture<U> thenApply
808	+	(CompletableFuture<T> f, Function<? super T,U> a) {
809	+	return f.thenApplyAsync(a, new ThreadExecutor());
810	+	}
811	+	public <T,U> CompletableFuture<U> thenCompose
812	+	(CompletableFuture<T> f,
813	+	Function<? super T,? extends CompletionStage<U>> a) {
814	+	return f.thenComposeAsync(a, new ThreadExecutor());
815	+	}
816	+	public <T,U> CompletableFuture<U> handle
817	+	(CompletableFuture<T> f,
818	+	BiFunction<? super T,Throwable,? extends U> a) {
819	+	return f.handleAsync(a, new ThreadExecutor());
820	+	}
821	+	public <T> CompletableFuture<T> whenComplete
822	+	(CompletableFuture<T> f,
823	+	BiConsumer<? super T,? super Throwable> a) {
824	+	return f.whenCompleteAsync(a, new ThreadExecutor());
825	+	}
826	+	public <T,U> CompletableFuture<Void> runAfterBoth
827	+	(CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) {
828	+	return f.runAfterBothAsync(g, a, new ThreadExecutor());
829	+	}
830	+	public <T,U> CompletableFuture<Void> thenAcceptBoth
831	+	(CompletableFuture<T> f,
832	+	CompletionStage<? extends U> g,
833	+	BiConsumer<? super T,? super U> a) {
834	+	return f.thenAcceptBothAsync(g, a, new ThreadExecutor());
835	+	}
836	+	public <T,U,V> CompletableFuture<V> thenCombine
837	+	(CompletableFuture<T> f,
838	+	CompletionStage<? extends U> g,
839	+	BiFunction<? super T,? super U,? extends V> a) {
840	+	return f.thenCombineAsync(g, a, new ThreadExecutor());
841	+	}
842	+	public <T> CompletableFuture<Void> runAfterEither
843	+	(CompletableFuture<T> f,
844	+	CompletionStage<?> g,
845	+	java.lang.Runnable a) {
846	+	return f.runAfterEitherAsync(g, a, new ThreadExecutor());
847	+	}
848	+	public <T> CompletableFuture<Void> acceptEither
849	+	(CompletableFuture<T> f,
850	+	CompletionStage<? extends T> g,
851	+	Consumer<? super T> a) {
852	+	return f.acceptEitherAsync(g, a, new ThreadExecutor());
853	+	}
854	+	public <T,U> CompletableFuture<U> applyToEither
855	+	(CompletableFuture<T> f,
856	+	CompletionStage<? extends T> g,
857	+	Function<? super T,U> a) {
858	+	return f.applyToEitherAsync(g, a, new ThreadExecutor());
859	+	}
860	+	public <T> CompletableFuture<T> exceptionally
861	+	(CompletableFuture<T> f,
862	+	Function<Throwable, ? extends T> fn) {
863	+	return f.exceptionallyAsync(fn, new ThreadExecutor());
864	+	}
865	+	public <T> CompletableFuture<T> exceptionallyCompose
866	+	(CompletableFuture<T> f, Function<Throwable, ? extends CompletionStage<T>> fn) {
867	+	return f.exceptionallyComposeAsync(fn, new ThreadExecutor());
868	+	}
869	+
870	+	};
871	+
872	+	public abstract void checkExecutionMode();
873	+	public abstract CompletableFuture<Void> runAsync(Runnable a);
874	+	public abstract <U> CompletableFuture<U> supplyAsync(Supplier<U> a);
875	+	public abstract <T> CompletableFuture<Void> thenRun
876	+	(CompletableFuture<T> f, Runnable a);
877	+	public abstract <T> CompletableFuture<Void> thenAccept
878	+	(CompletableFuture<T> f, Consumer<? super T> a);
879	+	public abstract <T,U> CompletableFuture<U> thenApply
880	+	(CompletableFuture<T> f, Function<? super T,U> a);
881	+	public abstract <T,U> CompletableFuture<U> thenCompose
882	+	(CompletableFuture<T> f,
883	+	Function<? super T,? extends CompletionStage<U>> a);
884	+	public abstract <T,U> CompletableFuture<U> handle
885	+	(CompletableFuture<T> f,
886	+	BiFunction<? super T,Throwable,? extends U> a);
887	+	public abstract <T> CompletableFuture<T> whenComplete
888	+	(CompletableFuture<T> f,
889	+	BiConsumer<? super T,? super Throwable> a);
890	+	public abstract <T,U> CompletableFuture<Void> runAfterBoth
891	+	(CompletableFuture<T> f, CompletableFuture<U> g, Runnable a);
892	+	public abstract <T,U> CompletableFuture<Void> thenAcceptBoth
893	+	(CompletableFuture<T> f,
894	+	CompletionStage<? extends U> g,
895	+	BiConsumer<? super T,? super U> a);
896	+	public abstract <T,U,V> CompletableFuture<V> thenCombine
897	+	(CompletableFuture<T> f,
898	+	CompletionStage<? extends U> g,
899	+	BiFunction<? super T,? super U,? extends V> a);
900	+	public abstract <T> CompletableFuture<Void> runAfterEither
901	+	(CompletableFuture<T> f,
902	+	CompletionStage<?> g,
903	+	java.lang.Runnable a);
904	+	public abstract <T> CompletableFuture<Void> acceptEither
905	+	(CompletableFuture<T> f,
906	+	CompletionStage<? extends T> g,
907	+	Consumer<? super T> a);
908	+	public abstract <T,U> CompletableFuture<U> applyToEither
909	+	(CompletableFuture<T> f,
910	+	CompletionStage<? extends T> g,
911	+	Function<? super T,U> a);
912	+	public abstract <T> CompletableFuture<T> exceptionally
913	+	(CompletableFuture<T> f,
914	+	Function<Throwable, ? extends T> fn);
915	+	public abstract <T> CompletableFuture<T> exceptionallyCompose
916	+	(CompletableFuture<T> f,
917	+	Function<Throwable, ? extends CompletionStage<T>> fn);
918	+	}
919	+
920	+	/**
921	+	* exceptionally action is not invoked when source completes
922	+	* normally, and source result is propagated
923	+	*/
924	+	public void testExceptionally_normalCompletion() {
925	+	for (ExecutionMode m : ExecutionMode.values())
926	+	for (boolean createIncomplete : new boolean[] { true, false })
927	+	for (Item v1 : new Item[] { one, null })
928	+	{
929	+	final AtomicInteger ran = new AtomicInteger(0);
930	+	final CompletableFuture<Item> f = new CompletableFuture<>();
931	+	if (!createIncomplete) assertTrue(f.complete(v1));
932	+	final CompletableFuture<Item> g = m.exceptionally
933	+	(f, (Throwable t) -> {
934	+	ran.getAndIncrement();
935	+	throw new AssertionError("should not be called");
936	+	});
937	+	if (createIncomplete) assertTrue(f.complete(v1));
938	+
939	+	checkCompletedNormally(g, v1);
940	+	checkCompletedNormally(f, v1);
941	+	mustEqual(0, ran.get());
942	+	}}
943
944		/**
945		* exceptionally action completes with function value on source
946	<	* exception;  otherwise with source value
946	>	* exception
947		*/
948	<	public void testExceptionally() {
949	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
950	<	ExceptionToInteger r = new ExceptionToInteger();
951	<	CompletableFuture<Integer> g = f.exceptionally(r);
952	<	f.completeExceptionally(new CFException());
953	<	checkCompletedNormally(g, three);
948	>	public void testExceptionally_exceptionalCompletion() {
949	>	for (ExecutionMode m : ExecutionMode.values())
950	>	for (boolean createIncomplete : new boolean[] { true, false })
951	>	for (Item v1 : new Item[] { one, null })
952	>	{
953	>	final AtomicInteger ran = new AtomicInteger(0);
954	>	final CFException ex = new CFException();
955	>	final CompletableFuture<Item> f = new CompletableFuture<>();
956	>	if (!createIncomplete) f.completeExceptionally(ex);
957	>	final CompletableFuture<Item> g = m.exceptionally
958	>	(f, (Throwable t) -> {
959	>	m.checkExecutionMode();
960	>	assertSame(t, ex);
961	>	ran.getAndIncrement();
962	>	return v1;
963	>	});
964	>	if (createIncomplete) f.completeExceptionally(ex);
965	>
966	>	checkCompletedNormally(g, v1);
967	>	mustEqual(1, ran.get());
968	>	}}
969	>
970	>	/**
971	>	* If an "exceptionally action" throws an exception, it completes
972	>	* exceptionally with that exception
973	>	*/
974	>	public void testExceptionally_exceptionalCompletionActionFailed() {
975	>	for (ExecutionMode m : ExecutionMode.values())
976	>	for (boolean createIncomplete : new boolean[] { true, false })
977	>	{
978	>	final AtomicInteger ran = new AtomicInteger(0);
979	>	final CFException ex1 = new CFException();
980	>	final CFException ex2 = new CFException();
981	>	final CompletableFuture<Item> f = new CompletableFuture<>();
982	>	if (!createIncomplete) f.completeExceptionally(ex1);
983	>	final CompletableFuture<Item> g = m.exceptionally
984	>	(f, (Throwable t) -> {
985	>	m.checkExecutionMode();
986	>	assertSame(t, ex1);
987	>	ran.getAndIncrement();
988	>	throw ex2;
989	>	});
990	>	if (createIncomplete) f.completeExceptionally(ex1);
991	>
992	>	checkCompletedWithWrappedException(g, ex2);
993	>	checkCompletedExceptionally(f, ex1);
994	>	mustEqual(1, ran.get());
995	>	}}
996	>
997	>	/**
998	>	* whenComplete action executes on normal completion, propagating
999	>	* source result.
1000	>	*/
1001	>	public void testWhenComplete_normalCompletion() {
1002	>	for (ExecutionMode m : ExecutionMode.values())
1003	>	for (boolean createIncomplete : new boolean[] { true, false })
1004	>	for (Item v1 : new Item[] { one, null })
1005	>	{
1006	>	final AtomicInteger ran = new AtomicInteger(0);
1007	>	final CompletableFuture<Item> f = new CompletableFuture<>();
1008	>	if (!createIncomplete) assertTrue(f.complete(v1));
1009	>	final CompletableFuture<Item> g = m.whenComplete
1010	>	(f,
1011	>	(Item result, Throwable t) -> {
1012	>	m.checkExecutionMode();
1013	>	assertSame(result, v1);
1014	>	assertNull(t);
1015	>	ran.getAndIncrement();
1016	>	});
1017	>	if (createIncomplete) assertTrue(f.complete(v1));
1018	>
1019	>	checkCompletedNormally(g, v1);
1020	>	checkCompletedNormally(f, v1);
1021	>	mustEqual(1, ran.get());
1022	>	}}
1023	>
1024	>	/**
1025	>	* whenComplete action executes on exceptional completion, propagating
1026	>	* source result.
1027	>	*/
1028	>	public void testWhenComplete_exceptionalCompletion() {
1029	>	for (ExecutionMode m : ExecutionMode.values())
1030	>	for (boolean createIncomplete : new boolean[] { true, false })
1031	>	{
1032	>	final AtomicInteger ran = new AtomicInteger(0);
1033	>	final CFException ex = new CFException();
1034	>	final CompletableFuture<Item> f = new CompletableFuture<>();
1035	>	if (!createIncomplete) f.completeExceptionally(ex);
1036	>	final CompletableFuture<Item> g = m.whenComplete
1037	>	(f,
1038	>	(Item result, Throwable t) -> {
1039	>	m.checkExecutionMode();
1040	>	assertNull(result);
1041	>	assertSame(t, ex);
1042	>	ran.getAndIncrement();
1043	>	});
1044	>	if (createIncomplete) f.completeExceptionally(ex);
1045	>
1046	>	checkCompletedWithWrappedException(g, ex);
1047	>	checkCompletedExceptionally(f, ex);
1048	>	mustEqual(1, ran.get());
1049	>	}}
1050	>
1051	>	/**
1052	>	* whenComplete action executes on cancelled source, propagating
1053	>	* CancellationException.
1054	>	*/
1055	>	public void testWhenComplete_sourceCancelled() {
1056	>	for (ExecutionMode m : ExecutionMode.values())
1057	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1058	>	for (boolean createIncomplete : new boolean[] { true, false })
1059	>	{
1060	>	final AtomicInteger ran = new AtomicInteger(0);
1061	>	final CompletableFuture<Item> f = new CompletableFuture<>();
1062	>	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1063	>	final CompletableFuture<Item> g = m.whenComplete
1064	>	(f,
1065	>	(Item result, Throwable t) -> {
1066	>	m.checkExecutionMode();
1067	>	assertNull(result);
1068	>	assertTrue(t instanceof CancellationException);
1069	>	ran.getAndIncrement();
1070	>	});
1071	>	if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1072
1073	<	f = new CompletableFuture<Integer>();
1074	<	r = new ExceptionToInteger();
1075	<	g = f.exceptionally(r);
1076	<	f.complete(one);
376	<	checkCompletedNormally(g, one);
377	<	}
1073	>	checkCompletedWithWrappedCancellationException(g);
1074	>	checkCancelled(f);
1075	>	mustEqual(1, ran.get());
1076	>	}}
1077
1078		/**
1079	<	* handle action completes normally with function value on either
1080	<	* normal or exceptional completion of source
1079	>	* If a whenComplete action throws an exception when triggered by
1080	>	* a normal completion, it completes exceptionally
1081		*/
1082	<	public void testHandle() {
1083	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1084	<	IntegerHandler r = new IntegerHandler();
1085	<	CompletableFuture<Integer> g = f.handle(r);
1086	<	f.completeExceptionally(new CFException());
1087	<	checkCompletedNormally(g, three);
1082	>	public void testWhenComplete_sourceCompletedNormallyActionFailed() {
1083	>	for (boolean createIncomplete : new boolean[] { true, false })
1084	>	for (ExecutionMode m : ExecutionMode.values())
1085	>	for (Item v1 : new Item[] { one, null })
1086	>	{
1087	>	final AtomicInteger ran = new AtomicInteger(0);
1088	>	final CFException ex = new CFException();
1089	>	final CompletableFuture<Item> f = new CompletableFuture<>();
1090	>	if (!createIncomplete) assertTrue(f.complete(v1));
1091	>	final CompletableFuture<Item> g = m.whenComplete
1092	>	(f,
1093	>	(Item result, Throwable t) -> {
1094	>	m.checkExecutionMode();
1095	>	assertSame(result, v1);
1096	>	assertNull(t);
1097	>	ran.getAndIncrement();
1098	>	throw ex;
1099	>	});
1100	>	if (createIncomplete) assertTrue(f.complete(v1));
1101	>
1102	>	checkCompletedWithWrappedException(g, ex);
1103	>	checkCompletedNormally(f, v1);
1104	>	mustEqual(1, ran.get());
1105	>	}}
1106	>
1107	>	/**
1108	>	* If a whenComplete action throws an exception when triggered by
1109	>	* a source completion that also throws an exception, the source
1110	>	* exception takes precedence (unlike handle)
1111	>	*/
1112	>	public void testWhenComplete_sourceFailedActionFailed() {
1113	>	for (boolean createIncomplete : new boolean[] { true, false })
1114	>	for (ExecutionMode m : ExecutionMode.values())
1115	>	{
1116	>	final AtomicInteger ran = new AtomicInteger(0);
1117	>	final CFException ex1 = new CFException();
1118	>	final CFException ex2 = new CFException();
1119	>	final CompletableFuture<Item> f = new CompletableFuture<>();
1120	>
1121	>	if (!createIncomplete) f.completeExceptionally(ex1);
1122	>	final CompletableFuture<Item> g = m.whenComplete
1123	>	(f,
1124	>	(Item result, Throwable t) -> {
1125	>	m.checkExecutionMode();
1126	>	assertSame(t, ex1);
1127	>	assertNull(result);
1128	>	ran.getAndIncrement();
1129	>	throw ex2;
1130	>	});
1131	>	if (createIncomplete) f.completeExceptionally(ex1);
1132	>
1133	>	checkCompletedWithWrappedException(g, ex1);
1134	>	checkCompletedExceptionally(f, ex1);
1135	>	if (testImplementationDetails) {
1136	>	mustEqual(1, ex1.getSuppressed().length);
1137	>	assertSame(ex2, ex1.getSuppressed()[0]);
1138	>	}
1139	>	mustEqual(1, ran.get());
1140	>	}}
1141
1142	<	f = new CompletableFuture<Integer>();
1143	<	r = new IntegerHandler();
1144	<	g = f.handle(r);
1145	<	f.complete(one);
1146	<	checkCompletedNormally(g, two);
1147	<	}
1142	>	/**
1143	>	* handle action completes normally with function value on normal
1144	>	* completion of source
1145	>	*/
1146	>	public void testHandle_normalCompletion() {
1147	>	for (ExecutionMode m : ExecutionMode.values())
1148	>	for (boolean createIncomplete : new boolean[] { true, false })
1149	>	for (Item v1 : new Item[] { one, null })
1150	>	{
1151	>	final CompletableFuture<Item> f = new CompletableFuture<>();
1152	>	final AtomicInteger ran = new AtomicInteger(0);
1153	>	if (!createIncomplete) assertTrue(f.complete(v1));
1154	>	final CompletableFuture<Item> g = m.handle
1155	>	(f,
1156	>	(Item result, Throwable t) -> {
1157	>	m.checkExecutionMode();
1158	>	assertSame(result, v1);
1159	>	assertNull(t);
1160	>	ran.getAndIncrement();
1161	>	return inc(v1);
1162	>	});
1163	>	if (createIncomplete) assertTrue(f.complete(v1));
1164	>
1165	>	checkCompletedNormally(g, inc(v1));
1166	>	checkCompletedNormally(f, v1);
1167	>	mustEqual(1, ran.get());
1168	>	}}
1169
1170		/**
1171	<	* runAsync completes after running Runnable
1171	>	* handle action completes normally with function value on
1172	>	* exceptional completion of source
1173		*/
1174	<	public void testRunAsync() {
1175	<	Noop r = new Noop();
1176	<	CompletableFuture<Void> f = CompletableFuture.runAsync(r);
1177	<	assertNull(f.join());
1178	<	assertTrue(r.ran);
1179	<	}
1174	>	public void testHandle_exceptionalCompletion() {
1175	>	for (ExecutionMode m : ExecutionMode.values())
1176	>	for (boolean createIncomplete : new boolean[] { true, false })
1177	>	for (Item v1 : new Item[] { one, null })
1178	>	{
1179	>	final CompletableFuture<Item> f = new CompletableFuture<>();
1180	>	final AtomicInteger ran = new AtomicInteger(0);
1181	>	final CFException ex = new CFException();
1182	>	if (!createIncomplete) f.completeExceptionally(ex);
1183	>	final CompletableFuture<Item> g = m.handle
1184	>	(f,
1185	>	(Item result, Throwable t) -> {
1186	>	m.checkExecutionMode();
1187	>	assertNull(result);
1188	>	assertSame(t, ex);
1189	>	ran.getAndIncrement();
1190	>	return v1;
1191	>	});
1192	>	if (createIncomplete) f.completeExceptionally(ex);
1193	>
1194	>	checkCompletedNormally(g, v1);
1195	>	checkCompletedExceptionally(f, ex);
1196	>	mustEqual(1, ran.get());
1197	>	}}
1198	>
1199	>	/**
1200	>	* handle action completes normally with function value on
1201	>	* cancelled source
1202	>	*/
1203	>	public void testHandle_sourceCancelled() {
1204	>	for (ExecutionMode m : ExecutionMode.values())
1205	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1206	>	for (boolean createIncomplete : new boolean[] { true, false })
1207	>	for (Item v1 : new Item[] { one, null })
1208	>	{
1209	>	final CompletableFuture<Item> f = new CompletableFuture<>();
1210	>	final AtomicInteger ran = new AtomicInteger(0);
1211	>	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1212	>	final CompletableFuture<Item> g = m.handle
1213	>	(f,
1214	>	(Item result, Throwable t) -> {
1215	>	m.checkExecutionMode();
1216	>	assertNull(result);
1217	>	assertTrue(t instanceof CancellationException);
1218	>	ran.getAndIncrement();
1219	>	return v1;
1220	>	});
1221	>	if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1222	>
1223	>	checkCompletedNormally(g, v1);
1224	>	checkCancelled(f);
1225	>	mustEqual(1, ran.get());
1226	>	}}
1227
1228		/**
1229	<	* runAsync with executor completes after running Runnable
1229	>	* If a "handle action" throws an exception when triggered by
1230	>	* a normal completion, it completes exceptionally
1231		*/
1232	<	public void testRunAsync2() {
1233	<	Noop r = new Noop();
1234	<	CompletableFuture<Void> f = CompletableFuture.runAsync(r, new ThreadExecutor());
1235	<	assertNull(f.join());
1236	<	assertTrue(r.ran);
1237	<	}
1232	>	public void testHandle_sourceCompletedNormallyActionFailed() {
1233	>	for (ExecutionMode m : ExecutionMode.values())
1234	>	for (boolean createIncomplete : new boolean[] { true, false })
1235	>	for (Item v1 : new Item[] { one, null })
1236	>	{
1237	>	final CompletableFuture<Item> f = new CompletableFuture<>();
1238	>	final AtomicInteger ran = new AtomicInteger(0);
1239	>	final CFException ex = new CFException();
1240	>	if (!createIncomplete) assertTrue(f.complete(v1));
1241	>	final CompletableFuture<Item> g = m.handle
1242	>	(f,
1243	>	(Item result, Throwable t) -> {
1244	>	m.checkExecutionMode();
1245	>	assertSame(result, v1);
1246	>	assertNull(t);
1247	>	ran.getAndIncrement();
1248	>	throw ex;
1249	>	});
1250	>	if (createIncomplete) assertTrue(f.complete(v1));
1251	>
1252	>	checkCompletedWithWrappedException(g, ex);
1253	>	checkCompletedNormally(f, v1);
1254	>	mustEqual(1, ran.get());
1255	>	}}
1256	>
1257	>	/**
1258	>	* If a "handle action" throws an exception when triggered by
1259	>	* a source completion that also throws an exception, the action
1260	>	* exception takes precedence (unlike whenComplete)
1261	>	*/
1262	>	public void testHandle_sourceFailedActionFailed() {
1263	>	for (boolean createIncomplete : new boolean[] { true, false })
1264	>	for (ExecutionMode m : ExecutionMode.values())
1265	>	{
1266	>	final AtomicInteger ran = new AtomicInteger(0);
1267	>	final CFException ex1 = new CFException();
1268	>	final CFException ex2 = new CFException();
1269	>	final CompletableFuture<Item> f = new CompletableFuture<>();
1270	>
1271	>	if (!createIncomplete) f.completeExceptionally(ex1);
1272	>	final CompletableFuture<Item> g = m.handle
1273	>	(f,
1274	>	(Item result, Throwable t) -> {
1275	>	m.checkExecutionMode();
1276	>	assertNull(result);
1277	>	assertSame(ex1, t);
1278	>	ran.getAndIncrement();
1279	>	throw ex2;
1280	>	});
1281	>	if (createIncomplete) f.completeExceptionally(ex1);
1282	>
1283	>	checkCompletedWithWrappedException(g, ex2);
1284	>	checkCompletedExceptionally(f, ex1);
1285	>	mustEqual(1, ran.get());
1286	>	}}
1287
1288		/**
1289	<	* failing runAsync completes exceptionally after running Runnable
1289	>	* runAsync completes after running Runnable
1290		*/
1291	<	public void testRunAsync3() {
1292	<	FailingNoop r = new FailingNoop();
1293	<	CompletableFuture<Void> f = CompletableFuture.runAsync(r);
1294	<	checkCompletedWithWrappedCFException(f);
1295	<	assertTrue(r.ran);
1296	<	}
1291	>	public void testRunAsync_normalCompletion() {
1292	>	ExecutionMode[] executionModes = {
1293	>	ExecutionMode.ASYNC,
1294	>	ExecutionMode.EXECUTOR,
1295	>	};
1296	>	for (ExecutionMode m : executionModes)
1297	>	{
1298	>	final Noop r = new Noop(m);
1299	>	final CompletableFuture<Void> f = m.runAsync(r);
1300	>	assertNull(f.join());
1301	>	checkCompletedNormally(f, null);
1302	>	r.assertInvoked();
1303	>	}}
1304
1305		/**
1306	<	* supplyAsync completes with result of supplier
1306	>	* failing runAsync completes exceptionally after running Runnable
1307		*/
1308	<	public void testSupplyAsync() {
1309	<	CompletableFuture<Integer> f = CompletableFuture.supplyAsync(supplyOne);
1310	<	assertEquals(f.join(), one);
1308	>	public void testRunAsync_exceptionalCompletion() {
1309	>	ExecutionMode[] executionModes = {
1310	>	ExecutionMode.ASYNC,
1311	>	ExecutionMode.EXECUTOR,
1312	>	};
1313	>	for (ExecutionMode m : executionModes)
1314	>	{
1315	>	final FailingRunnable r = new FailingRunnable(m);
1316	>	final CompletableFuture<Void> f = m.runAsync(r);
1317	>	checkCompletedWithWrappedException(f, r.ex);
1318	>	r.assertInvoked();
1319	>	}}
1320	>
1321	>	@SuppressWarnings("FutureReturnValueIgnored")
1322	>	public void testRunAsync_rejectingExecutor() {
1323	>	CountingRejectingExecutor e = new CountingRejectingExecutor();
1324	>	try {
1325	>	CompletableFuture.runAsync(() -> {}, e);
1326	>	shouldThrow();
1327	>	} catch (Throwable t) {
1328	>	assertSame(e.ex, t);
1329	>	}
1330	>
1331	>	mustEqual(1, e.count.get());
1332		}
1333
1334		/**
1335	<	* supplyAsync with executor completes with result of supplier
1335	>	* supplyAsync completes with result of supplier
1336		*/
1337	<	public void testSupplyAsync2() {
1338	<	CompletableFuture<Integer> f = CompletableFuture.supplyAsync(supplyOne, new ThreadExecutor());
1339	<	assertEquals(f.join(), one);
1340	<	}
1337	>	public void testSupplyAsync_normalCompletion() {
1338	>	ExecutionMode[] executionModes = {
1339	>	ExecutionMode.ASYNC,
1340	>	ExecutionMode.EXECUTOR,
1341	>	};
1342	>	for (ExecutionMode m : executionModes)
1343	>	for (Item v1 : new Item[] { one, null })
1344	>	{
1345	>	final ItemSupplier r = new ItemSupplier(m, v1);
1346	>	final CompletableFuture<Item> f = m.supplyAsync(r);
1347	>	assertSame(v1, f.join());
1348	>	checkCompletedNormally(f, v1);
1349	>	r.assertInvoked();
1350	>	}}
1351
1352		/**
1353		* Failing supplyAsync completes exceptionally
1354		*/
1355	<	public void testSupplyAsync3() {
1356	<	FailingSupplier r = new FailingSupplier();
1357	<	CompletableFuture<Integer> f = CompletableFuture.supplyAsync(r);
1358	<	checkCompletedWithWrappedCFException(f);
1359	<	assertTrue(r.ran);
1355	>	public void testSupplyAsync_exceptionalCompletion() {
1356	>	ExecutionMode[] executionModes = {
1357	>	ExecutionMode.ASYNC,
1358	>	ExecutionMode.EXECUTOR,
1359	>	};
1360	>	for (ExecutionMode m : executionModes)
1361	>	{
1362	>	FailingSupplier r = new FailingSupplier(m);
1363	>	CompletableFuture<Item> f = m.supplyAsync(r);
1364	>	checkCompletedWithWrappedException(f, r.ex);
1365	>	r.assertInvoked();
1366	>	}}
1367	>
1368	>	@SuppressWarnings("FutureReturnValueIgnored")
1369	>	public void testSupplyAsync_rejectingExecutor() {
1370	>	CountingRejectingExecutor e = new CountingRejectingExecutor();
1371	>	try {
1372	>	CompletableFuture.supplyAsync(() -> null, e);
1373	>	shouldThrow();
1374	>	} catch (Throwable t) {
1375	>	assertSame(e.ex, t);
1376	>	}
1377	>
1378	>	mustEqual(1, e.count.get());
1379		}
1380
1381		// seq completion methods
#	Line 455 | Line 1383 | public class CompletableFutureTest exten
1383		/**
1384		* thenRun result completes normally after normal completion of source
1385		*/
1386	<	public void testThenRun() {
1387	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1388	<	Noop r = new Noop();
1389	<	CompletableFuture<Void> g = f.thenRun(r);
1390	<	f.complete(null);
1391	<	checkCompletedNormally(g, null);
1392	<	// reordered version
1393	<	f = new CompletableFuture<Integer>();
1394	<	f.complete(null);
1395	<	r = new Noop();
1396	<	g = f.thenRun(r);
1397	<	checkCompletedNormally(g, null);
1398	<	}
1386	>	public void testThenRun_normalCompletion() {
1387	>	for (ExecutionMode m : ExecutionMode.values())
1388	>	for (Item v1 : new Item[] { one, null })
1389	>	{
1390	>	final CompletableFuture<Item> f = new CompletableFuture<>();
1391	>	final Noop[] rs = new Noop[6];
1392	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1393	>
1394	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1395	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1396	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1397	>	checkIncomplete(h0);
1398	>	checkIncomplete(h1);
1399	>	checkIncomplete(h2);
1400	>	assertTrue(f.complete(v1));
1401	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1402	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1403	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1404	>
1405	>	checkCompletedNormally(h0, null);
1406	>	checkCompletedNormally(h1, null);
1407	>	checkCompletedNormally(h2, null);
1408	>	checkCompletedNormally(h3, null);
1409	>	checkCompletedNormally(h4, null);
1410	>	checkCompletedNormally(h5, null);
1411	>	checkCompletedNormally(f, v1);
1412	>	for (Noop r : rs) r.assertInvoked();
1413	>	}}
1414
1415		/**
1416		* thenRun result completes exceptionally after exceptional
1417		* completion of source
1418		*/
1419	<	public void testThenRun2() {
1420	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1421	<	Noop r = new Noop();
1422	<	CompletableFuture<Void> g = f.thenRun(r);
1423	<	f.completeExceptionally(new CFException());
1424	<	checkCompletedWithWrappedCFException(g);
1425	<	}
1419	>	public void testThenRun_exceptionalCompletion() {
1420	>	for (ExecutionMode m : ExecutionMode.values())
1421	>	{
1422	>	final CFException ex = new CFException();
1423	>	final CompletableFuture<Item> f = new CompletableFuture<>();
1424	>	final Noop[] rs = new Noop[6];
1425	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1426	>
1427	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1428	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1429	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1430	>	checkIncomplete(h0);
1431	>	checkIncomplete(h1);
1432	>	checkIncomplete(h2);
1433	>	assertTrue(f.completeExceptionally(ex));
1434	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1435	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1436	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1437	>
1438	>	checkCompletedWithWrappedException(h0, ex);
1439	>	checkCompletedWithWrappedException(h1, ex);
1440	>	checkCompletedWithWrappedException(h2, ex);
1441	>	checkCompletedWithWrappedException(h3, ex);
1442	>	checkCompletedWithWrappedException(h4, ex);
1443	>	checkCompletedWithWrappedException(h5, ex);
1444	>	checkCompletedExceptionally(f, ex);
1445	>	for (Noop r : rs) r.assertNotInvoked();
1446	>	}}
1447
1448		/**
1449	<	* thenRun result completes exceptionally if action does
1449	>	* thenRun result completes exceptionally if source cancelled
1450		*/
1451	<	public void testThenRun3() {
1452	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1453	<	FailingNoop r = new FailingNoop();
1454	<	CompletableFuture<Void> g = f.thenRun(r);
1455	<	f.complete(null);
1456	<	checkCompletedWithWrappedCFException(g);
1457	<	}
1451	>	public void testThenRun_sourceCancelled() {
1452	>	for (ExecutionMode m : ExecutionMode.values())
1453	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1454	>	{
1455	>	final CompletableFuture<Item> f = new CompletableFuture<>();
1456	>	final Noop[] rs = new Noop[6];
1457	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1458	>
1459	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1460	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1461	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1462	>	checkIncomplete(h0);
1463	>	checkIncomplete(h1);
1464	>	checkIncomplete(h2);
1465	>	assertTrue(f.cancel(mayInterruptIfRunning));
1466	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1467	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1468	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1469	>
1470	>	checkCompletedWithWrappedCancellationException(h0);
1471	>	checkCompletedWithWrappedCancellationException(h1);
1472	>	checkCompletedWithWrappedCancellationException(h2);
1473	>	checkCompletedWithWrappedCancellationException(h3);
1474	>	checkCompletedWithWrappedCancellationException(h4);
1475	>	checkCompletedWithWrappedCancellationException(h5);
1476	>	checkCancelled(f);
1477	>	for (Noop r : rs) r.assertNotInvoked();
1478	>	}}
1479
1480		/**
1481	<	* thenRun result completes exceptionally if source cancelled
1481	>	* thenRun result completes exceptionally if action does
1482		*/
1483	<	public void testThenRun4() {
1484	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1485	<	Noop r = new Noop();
1486	<	CompletableFuture<Void> g = f.thenRun(r);
1487	<	assertTrue(f.cancel(true));
1488	<	checkCompletedWithWrappedCancellationException(g);
1489	<	}
1483	>	public void testThenRun_actionFailed() {
1484	>	for (ExecutionMode m : ExecutionMode.values())
1485	>	for (Item v1 : new Item[] { one, null })
1486	>	{
1487	>	final CompletableFuture<Item> f = new CompletableFuture<>();
1488	>	final FailingRunnable[] rs = new FailingRunnable[6];
1489	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingRunnable(m);
1490	>
1491	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1492	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1493	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1494	>	assertTrue(f.complete(v1));
1495	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1496	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1497	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1498	>
1499	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1500	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1501	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1502	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1503	>	checkCompletedWithWrappedException(h4, rs[4].ex);
1504	>	checkCompletedWithWrappedException(h5, rs[5].ex);
1505	>	checkCompletedNormally(f, v1);
1506	>	}}
1507
1508		/**
1509		* thenApply result completes normally after normal completion of source
1510		*/
1511	<	public void testThenApply() {
1512	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1513	<	CompletableFuture<Integer> g = f.thenApply(inc);
1514	<	f.complete(one);
1515	<	checkCompletedNormally(g, two);
1516	<	}
1511	>	public void testThenApply_normalCompletion() {
1512	>	for (ExecutionMode m : ExecutionMode.values())
1513	>	for (Item v1 : new Item[] { one, null })
1514	>	{
1515	>	final CompletableFuture<Item> f = new CompletableFuture<>();
1516	>	final IncFunction[] rs = new IncFunction[4];
1517	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1518	>
1519	>	final CompletableFuture<Item> h0 = m.thenApply(f, rs[0]);
1520	>	final CompletableFuture<Item> h1 = m.applyToEither(f, f, rs[1]);
1521	>	checkIncomplete(h0);
1522	>	checkIncomplete(h1);
1523	>	assertTrue(f.complete(v1));
1524	>	final CompletableFuture<Item> h2 = m.thenApply(f, rs[2]);
1525	>	final CompletableFuture<Item> h3 = m.applyToEither(f, f, rs[3]);
1526	>
1527	>	checkCompletedNormally(h0, inc(v1));
1528	>	checkCompletedNormally(h1, inc(v1));
1529	>	checkCompletedNormally(h2, inc(v1));
1530	>	checkCompletedNormally(h3, inc(v1));
1531	>	checkCompletedNormally(f, v1);
1532	>	for (IncFunction r : rs) r.assertValue(inc(v1));
1533	>	}}
1534
1535		/**
1536		* thenApply result completes exceptionally after exceptional
1537		* completion of source
1538		*/
1539	<	public void testThenApply2() {
1540	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1541	<	CompletableFuture<Integer> g = f.thenApply(inc);
1542	<	f.completeExceptionally(new CFException());
1543	<	checkCompletedWithWrappedCFException(g);
1544	<	}
1539	>	public void testThenApply_exceptionalCompletion() {
1540	>	for (ExecutionMode m : ExecutionMode.values())
1541	>	{
1542	>	final CFException ex = new CFException();
1543	>	final CompletableFuture<Item> f = new CompletableFuture<>();
1544	>	final IncFunction[] rs = new IncFunction[4];
1545	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1546	>
1547	>	final CompletableFuture<Item> h0 = m.thenApply(f, rs[0]);
1548	>	final CompletableFuture<Item> h1 = m.applyToEither(f, f, rs[1]);
1549	>	assertTrue(f.completeExceptionally(ex));
1550	>	final CompletableFuture<Item> h2 = m.thenApply(f, rs[2]);
1551	>	final CompletableFuture<Item> h3 = m.applyToEither(f, f, rs[3]);
1552	>
1553	>	checkCompletedWithWrappedException(h0, ex);
1554	>	checkCompletedWithWrappedException(h1, ex);
1555	>	checkCompletedWithWrappedException(h2, ex);
1556	>	checkCompletedWithWrappedException(h3, ex);
1557	>	checkCompletedExceptionally(f, ex);
1558	>	for (IncFunction r : rs) r.assertNotInvoked();
1559	>	}}
1560
1561		/**
1562	<	* thenApply result completes exceptionally if action does
1562	>	* thenApply result completes exceptionally if source cancelled
1563		*/
1564	<	public void testThenApply3() {
1565	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1566	<	CompletableFuture<Integer> g = f.thenApply(new FailingFunction());
1567	<	f.complete(one);
1568	<	checkCompletedWithWrappedCFException(g);
1569	<	}
1564	>	public void testThenApply_sourceCancelled() {
1565	>	for (ExecutionMode m : ExecutionMode.values())
1566	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1567	>	{
1568	>	final CompletableFuture<Item> f = new CompletableFuture<>();
1569	>	final IncFunction[] rs = new IncFunction[4];
1570	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1571	>
1572	>	final CompletableFuture<Item> h0 = m.thenApply(f, rs[0]);
1573	>	final CompletableFuture<Item> h1 = m.applyToEither(f, f, rs[1]);
1574	>	assertTrue(f.cancel(mayInterruptIfRunning));
1575	>	final CompletableFuture<Item> h2 = m.thenApply(f, rs[2]);
1576	>	final CompletableFuture<Item> h3 = m.applyToEither(f, f, rs[3]);
1577	>
1578	>	checkCompletedWithWrappedCancellationException(h0);
1579	>	checkCompletedWithWrappedCancellationException(h1);
1580	>	checkCompletedWithWrappedCancellationException(h2);
1581	>	checkCompletedWithWrappedCancellationException(h3);
1582	>	checkCancelled(f);
1583	>	for (IncFunction r : rs) r.assertNotInvoked();
1584	>	}}
1585
1586		/**
1587	<	* thenApply result completes exceptionally if source cancelled
1587	>	* thenApply result completes exceptionally if action does
1588		*/
1589	<	public void testThenApply4() {
1590	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1591	<	CompletableFuture<Integer> g = f.thenApply(inc);
1592	<	assertTrue(f.cancel(true));
1593	<	checkCompletedWithWrappedCancellationException(g);
1594	<	}
1589	>	public void testThenApply_actionFailed() {
1590	>	for (ExecutionMode m : ExecutionMode.values())
1591	>	for (Item v1 : new Item[] { one, null })
1592	>	{
1593	>	final CompletableFuture<Item> f = new CompletableFuture<>();
1594	>	final FailingFunction[] rs = new FailingFunction[4];
1595	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingFunction(m);
1596	>
1597	>	final CompletableFuture<Item> h0 = m.thenApply(f, rs[0]);
1598	>	final CompletableFuture<Item> h1 = m.applyToEither(f, f, rs[1]);
1599	>	assertTrue(f.complete(v1));
1600	>	final CompletableFuture<Item> h2 = m.thenApply(f, rs[2]);
1601	>	final CompletableFuture<Item> h3 = m.applyToEither(f, f, rs[3]);
1602	>
1603	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1604	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1605	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1606	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1607	>	checkCompletedNormally(f, v1);
1608	>	}}
1609
1610		/**
1611		* thenAccept result completes normally after normal completion of source
1612		*/
1613	<	public void testThenAccept() {
1614	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1615	<	IncAction r = new IncAction();
1616	<	CompletableFuture<Void> g = f.thenAccept(r);
1617	<	f.complete(one);
1618	<	checkCompletedNormally(g, null);
1619	<	assertEquals(r.value, 2);
1620	<	}
1613	>	public void testThenAccept_normalCompletion() {
1614	>	for (ExecutionMode m : ExecutionMode.values())
1615	>	for (Item v1 : new Item[] { one, null })
1616	>	{
1617	>	final CompletableFuture<Item> f = new CompletableFuture<>();
1618	>	final NoopConsumer[] rs = new NoopConsumer[4];
1619	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1620	>
1621	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1622	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1623	>	checkIncomplete(h0);
1624	>	checkIncomplete(h1);
1625	>	assertTrue(f.complete(v1));
1626	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1627	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1628	>
1629	>	checkCompletedNormally(h0, null);
1630	>	checkCompletedNormally(h1, null);
1631	>	checkCompletedNormally(h2, null);
1632	>	checkCompletedNormally(h3, null);
1633	>	checkCompletedNormally(f, v1);
1634	>	for (NoopConsumer r : rs) r.assertValue(v1);
1635	>	}}
1636
1637		/**
1638		* thenAccept result completes exceptionally after exceptional
1639		* completion of source
1640		*/
1641	<	public void testThenAccept2() {
1642	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1643	<	IncAction r = new IncAction();
1644	<	CompletableFuture<Void> g = f.thenAccept(r);
1645	<	f.completeExceptionally(new CFException());
1646	<	checkCompletedWithWrappedCFException(g);
1647	<	}
1648	<
1649	<	/**
1650	<	* thenAccept result completes exceptionally if action does
1651	<	*/
1652	<	public void testThenAccept3() {
1653	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1654	<	FailingConsumer r = new FailingConsumer();
1655	<	CompletableFuture<Void> g = f.thenAccept(r);
1656	<	f.complete(one);
1657	<	checkCompletedWithWrappedCFException(g);
1658	<	assertTrue(r.ran);
1659	<	}
1641	>	public void testThenAccept_exceptionalCompletion() {
1642	>	for (ExecutionMode m : ExecutionMode.values())
1643	>	{
1644	>	final CFException ex = new CFException();
1645	>	final CompletableFuture<Item> f = new CompletableFuture<>();
1646	>	final NoopConsumer[] rs = new NoopConsumer[4];
1647	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1648	>
1649	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1650	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1651	>	assertTrue(f.completeExceptionally(ex));
1652	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1653	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1654	>
1655	>	checkCompletedWithWrappedException(h0, ex);
1656	>	checkCompletedWithWrappedException(h1, ex);
1657	>	checkCompletedWithWrappedException(h2, ex);
1658	>	checkCompletedWithWrappedException(h3, ex);
1659	>	checkCompletedExceptionally(f, ex);
1660	>	for (NoopConsumer r : rs) r.assertNotInvoked();
1661	>	}}
1662
1663		/**
1664		* thenAccept result completes exceptionally if source cancelled
1665		*/
1666	<	public void testThenAccept4() {
1667	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1668	<	IncAction r = new IncAction();
1669	<	CompletableFuture<Void> g = f.thenAccept(r);
1670	<	assertTrue(f.cancel(true));
1671	<	checkCompletedWithWrappedCancellationException(g);
1672	<	}
1673	<
1666	>	public void testThenAccept_sourceCancelled() {
1667	>	for (ExecutionMode m : ExecutionMode.values())
1668	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1669	>	{
1670	>	final CompletableFuture<Item> f = new CompletableFuture<>();
1671	>	final NoopConsumer[] rs = new NoopConsumer[4];
1672	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1673	>
1674	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1675	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1676	>	assertTrue(f.cancel(mayInterruptIfRunning));
1677	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1678	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1679	>
1680	>	checkCompletedWithWrappedCancellationException(h0);
1681	>	checkCompletedWithWrappedCancellationException(h1);
1682	>	checkCompletedWithWrappedCancellationException(h2);
1683	>	checkCompletedWithWrappedCancellationException(h3);
1684	>	checkCancelled(f);
1685	>	for (NoopConsumer r : rs) r.assertNotInvoked();
1686	>	}}
1687
1688		/**
1689	<	* thenCombine result completes normally after normal completion of sources
1689	>	* thenAccept result completes exceptionally if action does
1690		*/
1691	<	public void testThenCombine() {
1692	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1693	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1694	<	CompletableFuture<Integer> g = f.thenCombine(f2, add);
1695	<	f.complete(one);
1696	<	checkIncomplete(g);
1697	<	f2.complete(two);
1698	<	checkCompletedNormally(g, three);
1699	<
1700	<	f = new CompletableFuture<Integer>();
1701	<	f.complete(one);
1702	<	f2 = new CompletableFuture<Integer>();
1703	<	g = f.thenCombine(f2, add);
1704	<	checkIncomplete(g);
1705	<	f2.complete(two);
1706	<	checkCompletedNormally(g, three);
1707	<	}
1691	>	public void testThenAccept_actionFailed() {
1692	>	for (ExecutionMode m : ExecutionMode.values())
1693	>	for (Item v1 : new Item[] { one, null })
1694	>	{
1695	>	final CompletableFuture<Item> f = new CompletableFuture<>();
1696	>	final FailingConsumer[] rs = new FailingConsumer[4];
1697	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingConsumer(m);
1698	>
1699	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1700	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1701	>	assertTrue(f.complete(v1));
1702	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1703	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1704	>
1705	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1706	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1707	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1708	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1709	>	checkCompletedNormally(f, v1);
1710	>	}}
1711	>
1712	>	/**
1713	>	* thenCombine result completes normally after normal completion
1714	>	* of sources
1715	>	*/
1716	>	public void testThenCombine_normalCompletion() {
1717	>	for (ExecutionMode m : ExecutionMode.values())
1718	>	for (boolean fFirst : new boolean[] { true, false })
1719	>	for (Item v1 : new Item[] { one, null })
1720	>	for (Item v2 : new Item[] { two, null })
1721	>	{
1722	>	final CompletableFuture<Item> f = new CompletableFuture<>();
1723	>	final CompletableFuture<Item> g = new CompletableFuture<>();
1724	>	final SubtractFunction[] rs = new SubtractFunction[6];
1725	>	for (int i = 0; i < rs.length; i++) rs[i] = new SubtractFunction(m);
1726	>
1727	>	final CompletableFuture<Item> fst =  fFirst ? f : g;
1728	>	final CompletableFuture<Item> snd = !fFirst ? f : g;
1729	>	final Item w1 =  fFirst ? v1 : v2;
1730	>	final Item w2 = !fFirst ? v1 : v2;
1731	>
1732	>	final CompletableFuture<Item> h0 = m.thenCombine(f, g, rs[0]);
1733	>	final CompletableFuture<Item> h1 = m.thenCombine(fst, fst, rs[1]);
1734	>	assertTrue(fst.complete(w1));
1735	>	final CompletableFuture<Item> h2 = m.thenCombine(f, g, rs[2]);
1736	>	final CompletableFuture<Item> h3 = m.thenCombine(fst, fst, rs[3]);
1737	>	checkIncomplete(h0); rs[0].assertNotInvoked();
1738	>	checkIncomplete(h2); rs[2].assertNotInvoked();
1739	>	checkCompletedNormally(h1, subtract(w1, w1));
1740	>	checkCompletedNormally(h3, subtract(w1, w1));
1741	>	rs[1].assertValue(subtract(w1, w1));
1742	>	rs[3].assertValue(subtract(w1, w1));
1743	>	assertTrue(snd.complete(w2));
1744	>	final CompletableFuture<Item> h4 = m.thenCombine(f, g, rs[4]);
1745	>
1746	>	checkCompletedNormally(h0, subtract(v1, v2));
1747	>	checkCompletedNormally(h2, subtract(v1, v2));
1748	>	checkCompletedNormally(h4, subtract(v1, v2));
1749	>	rs[0].assertValue(subtract(v1, v2));
1750	>	rs[2].assertValue(subtract(v1, v2));
1751	>	rs[4].assertValue(subtract(v1, v2));
1752	>
1753	>	checkCompletedNormally(f, v1);
1754	>	checkCompletedNormally(g, v2);
1755	>	}}
1756
1757		/**
1758		* thenCombine result completes exceptionally after exceptional
1759		* completion of either source
1760		*/
1761	<	public void testThenCombine2() {
1762	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1763	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1764	<	CompletableFuture<Integer> g = f.thenCombine(f2, add);
1765	<	f.completeExceptionally(new CFException());
1766	<	f2.complete(two);
1767	<	checkCompletedWithWrappedCFException(g);
1768	<
1769	<	f = new CompletableFuture<Integer>();
1770	<	f.complete(one);
1771	<	f2 = new CompletableFuture<Integer>();
1772	<	g = f.thenCombine(f2, add);
1773	<	f2.completeExceptionally(new CFException());
1774	<	checkCompletedWithWrappedCFException(g);
1775	<	}
1761	>	public void testThenCombine_exceptionalCompletion() throws Throwable {
1762	>	for (ExecutionMode m : ExecutionMode.values())
1763	>	for (boolean fFirst : new boolean[] { true, false })
1764	>	for (boolean failFirst : new boolean[] { true, false })
1765	>	for (Item v1 : new Item[] { one, null })
1766	>	{
1767	>	final CompletableFuture<Item> f = new CompletableFuture<>();
1768	>	final CompletableFuture<Item> g = new CompletableFuture<>();
1769	>	final CFException ex = new CFException();
1770	>	final SubtractFunction r1 = new SubtractFunction(m);
1771	>	final SubtractFunction r2 = new SubtractFunction(m);
1772	>	final SubtractFunction r3 = new SubtractFunction(m);
1773	>
1774	>	final CompletableFuture<Item> fst =  fFirst ? f : g;
1775	>	final CompletableFuture<Item> snd = !fFirst ? f : g;
1776	>	final Callable<Boolean> complete1 = failFirst ?
1777	>	() -> fst.completeExceptionally(ex) :
1778	>	() -> fst.complete(v1);
1779	>	final Callable<Boolean> complete2 = failFirst ?
1780	>	() -> snd.complete(v1) :
1781	>	() -> snd.completeExceptionally(ex);
1782	>
1783	>	final CompletableFuture<Item> h1 = m.thenCombine(f, g, r1);
1784	>	assertTrue(complete1.call());
1785	>	final CompletableFuture<Item> h2 = m.thenCombine(f, g, r2);
1786	>	checkIncomplete(h1);
1787	>	checkIncomplete(h2);
1788	>	assertTrue(complete2.call());
1789	>	final CompletableFuture<Item> h3 = m.thenCombine(f, g, r3);
1790	>
1791	>	checkCompletedWithWrappedException(h1, ex);
1792	>	checkCompletedWithWrappedException(h2, ex);
1793	>	checkCompletedWithWrappedException(h3, ex);
1794	>	r1.assertNotInvoked();
1795	>	r2.assertNotInvoked();
1796	>	r3.assertNotInvoked();
1797	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1798	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
1799	>	}}
1800
1801		/**
1802	<	* thenCombine result completes exceptionally if action does
1802	>	* thenCombine result completes exceptionally if either source cancelled
1803		*/
1804	<	public void testThenCombine3() {
1805	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1806	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1807	<	FailingBiFunction r = new FailingBiFunction();
1808	<	CompletableFuture<Integer> g = f.thenCombine(f2, r);
1809	<	f.complete(one);
1810	<	checkIncomplete(g);
1811	<	f2.complete(two);
1812	<	checkCompletedWithWrappedCFException(g);
1813	<	}
1804	>	public void testThenCombine_sourceCancelled() throws Throwable {
1805	>	for (ExecutionMode m : ExecutionMode.values())
1806	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1807	>	for (boolean fFirst : new boolean[] { true, false })
1808	>	for (boolean failFirst : new boolean[] { true, false })
1809	>	for (Item v1 : new Item[] { one, null })
1810	>	{
1811	>	final CompletableFuture<Item> f = new CompletableFuture<>();
1812	>	final CompletableFuture<Item> g = new CompletableFuture<>();
1813	>	final SubtractFunction r1 = new SubtractFunction(m);
1814	>	final SubtractFunction r2 = new SubtractFunction(m);
1815	>	final SubtractFunction r3 = new SubtractFunction(m);
1816	>
1817	>	final CompletableFuture<Item> fst =  fFirst ? f : g;
1818	>	final CompletableFuture<Item> snd = !fFirst ? f : g;
1819	>	final Callable<Boolean> complete1 = failFirst ?
1820	>	() -> fst.cancel(mayInterruptIfRunning) :
1821	>	() -> fst.complete(v1);
1822	>	final Callable<Boolean> complete2 = failFirst ?
1823	>	() -> snd.complete(v1) :
1824	>	() -> snd.cancel(mayInterruptIfRunning);
1825	>
1826	>	final CompletableFuture<Item> h1 = m.thenCombine(f, g, r1);
1827	>	assertTrue(complete1.call());
1828	>	final CompletableFuture<Item> h2 = m.thenCombine(f, g, r2);
1829	>	checkIncomplete(h1);
1830	>	checkIncomplete(h2);
1831	>	assertTrue(complete2.call());
1832	>	final CompletableFuture<Item> h3 = m.thenCombine(f, g, r3);
1833	>
1834	>	checkCompletedWithWrappedCancellationException(h1);
1835	>	checkCompletedWithWrappedCancellationException(h2);
1836	>	checkCompletedWithWrappedCancellationException(h3);
1837	>	r1.assertNotInvoked();
1838	>	r2.assertNotInvoked();
1839	>	r3.assertNotInvoked();
1840	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1841	>	checkCancelled(failFirst ? fst : snd);
1842	>	}}
1843
1844		/**
1845	<	* thenCombine result completes exceptionally if either source cancelled
1845	>	* thenCombine result completes exceptionally if action does
1846		*/
1847	<	public void testThenCombine4() {
1848	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1849	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1850	<	CompletableFuture<Integer> g = f.thenCombine(f2, add);
1851	<	assertTrue(f.cancel(true));
1852	<	f2.complete(two);
1853	<	checkCompletedWithWrappedCancellationException(g);
1854	<	f = new CompletableFuture<Integer>();
1855	<	f2 = new CompletableFuture<Integer>();
1856	<	g = f.thenCombine(f2, add);
1857	<	f.complete(one);
1858	<	assertTrue(f2.cancel(true));
1859	<	checkCompletedWithWrappedCancellationException(g);
1860	<	}
1847	>	public void testThenCombine_actionFailed() {
1848	>	for (ExecutionMode m : ExecutionMode.values())
1849	>	for (boolean fFirst : new boolean[] { true, false })
1850	>	for (Item v1 : new Item[] { one, null })
1851	>	for (Item v2 : new Item[] { two, null })
1852	>	{
1853	>	final CompletableFuture<Item> f = new CompletableFuture<>();
1854	>	final CompletableFuture<Item> g = new CompletableFuture<>();
1855	>	final FailingBiFunction r1 = new FailingBiFunction(m);
1856	>	final FailingBiFunction r2 = new FailingBiFunction(m);
1857	>	final FailingBiFunction r3 = new FailingBiFunction(m);
1858	>
1859	>	final CompletableFuture<Item> fst =  fFirst ? f : g;
1860	>	final CompletableFuture<Item> snd = !fFirst ? f : g;
1861	>	final Item w1 =  fFirst ? v1 : v2;
1862	>	final Item w2 = !fFirst ? v1 : v2;
1863	>
1864	>	final CompletableFuture<Item> h1 = m.thenCombine(f, g, r1);
1865	>	assertTrue(fst.complete(w1));
1866	>	final CompletableFuture<Item> h2 = m.thenCombine(f, g, r2);
1867	>	assertTrue(snd.complete(w2));
1868	>	final CompletableFuture<Item> h3 = m.thenCombine(f, g, r3);
1869	>
1870	>	checkCompletedWithWrappedException(h1, r1.ex);
1871	>	checkCompletedWithWrappedException(h2, r2.ex);
1872	>	checkCompletedWithWrappedException(h3, r3.ex);
1873	>	r1.assertInvoked();
1874	>	r2.assertInvoked();
1875	>	r3.assertInvoked();
1876	>	checkCompletedNormally(f, v1);
1877	>	checkCompletedNormally(g, v2);
1878	>	}}
1879
1880		/**
1881		* thenAcceptBoth result completes normally after normal
1882		* completion of sources
1883		*/
1884	<	public void testThenAcceptBoth() {
1885	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1886	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1887	<	AddAction r = new AddAction();
1888	<	CompletableFuture<Void> g = f.thenAcceptBoth(f2, r);
1889	<	f.complete(one);
1890	<	checkIncomplete(g);
1891	<	f2.complete(two);
1892	<	checkCompletedNormally(g, null);
1893	<	assertEquals(r.value, 3);
1894	<
1895	<	r = new AddAction();
1896	<	f = new CompletableFuture<Integer>();
1897	<	f.complete(one);
1898	<	f2 = new CompletableFuture<Integer>();
1899	<	g = f.thenAcceptBoth(f2, r);
1900	<	checkIncomplete(g);
1901	<	f2.complete(two);
1902	<	checkCompletedNormally(g, null);
1903	<	assertEquals(r.value, 3);
1904	<	}
1884	>	public void testThenAcceptBoth_normalCompletion() {
1885	>	for (ExecutionMode m : ExecutionMode.values())
1886	>	for (boolean fFirst : new boolean[] { true, false })
1887	>	for (Item v1 : new Item[] { one, null })
1888	>	for (Item v2 : new Item[] { two, null })
1889	>	{
1890	>	final CompletableFuture<Item> f = new CompletableFuture<>();
1891	>	final CompletableFuture<Item> g = new CompletableFuture<>();
1892	>	final SubtractAction r1 = new SubtractAction(m);
1893	>	final SubtractAction r2 = new SubtractAction(m);
1894	>	final SubtractAction r3 = new SubtractAction(m);
1895	>
1896	>	final CompletableFuture<Item> fst =  fFirst ? f : g;
1897	>	final CompletableFuture<Item> snd = !fFirst ? f : g;
1898	>	final Item w1 =  fFirst ? v1 : v2;
1899	>	final Item w2 = !fFirst ? v1 : v2;
1900	>
1901	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1902	>	assertTrue(fst.complete(w1));
1903	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1904	>	checkIncomplete(h1);
1905	>	checkIncomplete(h2);
1906	>	r1.assertNotInvoked();
1907	>	r2.assertNotInvoked();
1908	>	assertTrue(snd.complete(w2));
1909	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1910	>
1911	>	checkCompletedNormally(h1, null);
1912	>	checkCompletedNormally(h2, null);
1913	>	checkCompletedNormally(h3, null);
1914	>	r1.assertValue(subtract(v1, v2));
1915	>	r2.assertValue(subtract(v1, v2));
1916	>	r3.assertValue(subtract(v1, v2));
1917	>	checkCompletedNormally(f, v1);
1918	>	checkCompletedNormally(g, v2);
1919	>	}}
1920
1921		/**
1922		* thenAcceptBoth result completes exceptionally after exceptional
1923		* completion of either source
1924		*/
1925	<	public void testThenAcceptBoth2() {
1926	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1927	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1928	<	AddAction r = new AddAction();
1929	<	CompletableFuture<Void> g = f.thenAcceptBoth(f2, r);
1930	<	f.completeExceptionally(new CFException());
1931	<	f2.complete(two);
1932	<	checkCompletedWithWrappedCFException(g);
1933	<
1934	<	r = new AddAction();
1935	<	f = new CompletableFuture<Integer>();
1936	<	f.complete(one);
1937	<	f2 = new CompletableFuture<Integer>();
1938	<	g = f.thenAcceptBoth(f2, r);
1939	<	f2.completeExceptionally(new CFException());
1940	<	checkCompletedWithWrappedCFException(g);
1941	<	}
1925	>	public void testThenAcceptBoth_exceptionalCompletion() throws Throwable {
1926	>	for (ExecutionMode m : ExecutionMode.values())
1927	>	for (boolean fFirst : new boolean[] { true, false })
1928	>	for (boolean failFirst : new boolean[] { true, false })
1929	>	for (Item v1 : new Item[] { one, null })
1930	>	{
1931	>	final CompletableFuture<Item> f = new CompletableFuture<>();
1932	>	final CompletableFuture<Item> g = new CompletableFuture<>();
1933	>	final CFException ex = new CFException();
1934	>	final SubtractAction r1 = new SubtractAction(m);
1935	>	final SubtractAction r2 = new SubtractAction(m);
1936	>	final SubtractAction r3 = new SubtractAction(m);
1937	>
1938	>	final CompletableFuture<Item> fst =  fFirst ? f : g;
1939	>	final CompletableFuture<Item> snd = !fFirst ? f : g;
1940	>	final Callable<Boolean> complete1 = failFirst ?
1941	>	() -> fst.completeExceptionally(ex) :
1942	>	() -> fst.complete(v1);
1943	>	final Callable<Boolean> complete2 = failFirst ?
1944	>	() -> snd.complete(v1) :
1945	>	() -> snd.completeExceptionally(ex);
1946	>
1947	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1948	>	assertTrue(complete1.call());
1949	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1950	>	checkIncomplete(h1);
1951	>	checkIncomplete(h2);
1952	>	assertTrue(complete2.call());
1953	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1954	>
1955	>	checkCompletedWithWrappedException(h1, ex);
1956	>	checkCompletedWithWrappedException(h2, ex);
1957	>	checkCompletedWithWrappedException(h3, ex);
1958	>	r1.assertNotInvoked();
1959	>	r2.assertNotInvoked();
1960	>	r3.assertNotInvoked();
1961	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1962	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
1963	>	}}
1964
1965		/**
1966	<	* thenAcceptBoth result completes exceptionally if action does
1966	>	* thenAcceptBoth result completes exceptionally if either source cancelled
1967		*/
1968	<	public void testThenAcceptBoth3() {
1969	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1970	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1971	<	FailingBiConsumer r = new FailingBiConsumer();
1972	<	CompletableFuture<Void> g = f.thenAcceptBoth(f2, r);
1973	<	f.complete(one);
1974	<	checkIncomplete(g);
1975	<	f2.complete(two);
1976	<	checkCompletedWithWrappedCFException(g);
1977	<	}
1968	>	public void testThenAcceptBoth_sourceCancelled() throws Throwable {
1969	>	for (ExecutionMode m : ExecutionMode.values())
1970	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1971	>	for (boolean fFirst : new boolean[] { true, false })
1972	>	for (boolean failFirst : new boolean[] { true, false })
1973	>	for (Item v1 : new Item[] { one, null })
1974	>	{
1975	>	final CompletableFuture<Item> f = new CompletableFuture<>();
1976	>	final CompletableFuture<Item> g = new CompletableFuture<>();
1977	>	final SubtractAction r1 = new SubtractAction(m);
1978	>	final SubtractAction r2 = new SubtractAction(m);
1979	>	final SubtractAction r3 = new SubtractAction(m);
1980	>
1981	>	final CompletableFuture<Item> fst =  fFirst ? f : g;
1982	>	final CompletableFuture<Item> snd = !fFirst ? f : g;
1983	>	final Callable<Boolean> complete1 = failFirst ?
1984	>	() -> fst.cancel(mayInterruptIfRunning) :
1985	>	() -> fst.complete(v1);
1986	>	final Callable<Boolean> complete2 = failFirst ?
1987	>	() -> snd.complete(v1) :
1988	>	() -> snd.cancel(mayInterruptIfRunning);
1989	>
1990	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1991	>	assertTrue(complete1.call());
1992	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1993	>	checkIncomplete(h1);
1994	>	checkIncomplete(h2);
1995	>	assertTrue(complete2.call());
1996	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1997	>
1998	>	checkCompletedWithWrappedCancellationException(h1);
1999	>	checkCompletedWithWrappedCancellationException(h2);
2000	>	checkCompletedWithWrappedCancellationException(h3);
2001	>	r1.assertNotInvoked();
2002	>	r2.assertNotInvoked();
2003	>	r3.assertNotInvoked();
2004	>	checkCompletedNormally(failFirst ? snd : fst, v1);
2005	>	checkCancelled(failFirst ? fst : snd);
2006	>	}}
2007
2008		/**
2009	<	* thenAcceptBoth result completes exceptionally if either source cancelled
2009	>	* thenAcceptBoth result completes exceptionally if action does
2010		*/
2011	<	public void testThenAcceptBoth4() {
2012	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2013	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2014	<	AddAction r = new AddAction();
2015	<	CompletableFuture<Void> g = f.thenAcceptBoth(f2, r);
2016	<	assertTrue(f.cancel(true));
2017	<	f2.complete(two);
2018	<	checkCompletedWithWrappedCancellationException(g);
2019	<	f = new CompletableFuture<Integer>();
2020	<	f2 = new CompletableFuture<Integer>();
2021	<	r = new AddAction();
2022	<	g = f.thenAcceptBoth(f2, r);
2023	<	f.complete(one);
2024	<	assertTrue(f2.cancel(true));
2025	<	checkCompletedWithWrappedCancellationException(g);
2026	<	}
2011	>	public void testThenAcceptBoth_actionFailed() {
2012	>	for (ExecutionMode m : ExecutionMode.values())
2013	>	for (boolean fFirst : new boolean[] { true, false })
2014	>	for (Item v1 : new Item[] { one, null })
2015	>	for (Item v2 : new Item[] { two, null })
2016	>	{
2017	>	final CompletableFuture<Item> f = new CompletableFuture<>();
2018	>	final CompletableFuture<Item> g = new CompletableFuture<>();
2019	>	final FailingBiConsumer r1 = new FailingBiConsumer(m);
2020	>	final FailingBiConsumer r2 = new FailingBiConsumer(m);
2021	>	final FailingBiConsumer r3 = new FailingBiConsumer(m);
2022	>
2023	>	final CompletableFuture<Item> fst =  fFirst ? f : g;
2024	>	final CompletableFuture<Item> snd = !fFirst ? f : g;
2025	>	final Item w1 =  fFirst ? v1 : v2;
2026	>	final Item w2 = !fFirst ? v1 : v2;
2027	>
2028	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
2029	>	assertTrue(fst.complete(w1));
2030	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
2031	>	assertTrue(snd.complete(w2));
2032	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
2033	>
2034	>	checkCompletedWithWrappedException(h1, r1.ex);
2035	>	checkCompletedWithWrappedException(h2, r2.ex);
2036	>	checkCompletedWithWrappedException(h3, r3.ex);
2037	>	r1.assertInvoked();
2038	>	r2.assertInvoked();
2039	>	r3.assertInvoked();
2040	>	checkCompletedNormally(f, v1);
2041	>	checkCompletedNormally(g, v2);
2042	>	}}
2043
2044		/**
2045		* runAfterBoth result completes normally after normal
2046		* completion of sources
2047		*/
2048	<	public void testRunAfterBoth() {
2049	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2050	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2051	<	Noop r = new Noop();
2052	<	CompletableFuture<Void> g = f.runAfterBoth(f2, r);
2053	<	f.complete(one);
2054	<	checkIncomplete(g);
2055	<	f2.complete(two);
2056	<	checkCompletedNormally(g, null);
2057	<	assertTrue(r.ran);
2058	<
2059	<	r = new Noop();
2060	<	f = new CompletableFuture<Integer>();
2061	<	f.complete(one);
2062	<	f2 = new CompletableFuture<Integer>();
2063	<	g = f.runAfterBoth(f2, r);
2064	<	checkIncomplete(g);
2065	<	f2.complete(two);
2066	<	checkCompletedNormally(g, null);
2067	<	assertTrue(r.ran);
2068	<	}
2048	>	public void testRunAfterBoth_normalCompletion() {
2049	>	for (ExecutionMode m : ExecutionMode.values())
2050	>	for (boolean fFirst : new boolean[] { true, false })
2051	>	for (Item v1 : new Item[] { one, null })
2052	>	for (Item v2 : new Item[] { two, null })
2053	>	{
2054	>	final CompletableFuture<Item> f = new CompletableFuture<>();
2055	>	final CompletableFuture<Item> g = new CompletableFuture<>();
2056	>	final Noop r1 = new Noop(m);
2057	>	final Noop r2 = new Noop(m);
2058	>	final Noop r3 = new Noop(m);
2059	>
2060	>	final CompletableFuture<Item> fst =  fFirst ? f : g;
2061	>	final CompletableFuture<Item> snd = !fFirst ? f : g;
2062	>	final Item w1 =  fFirst ? v1 : v2;
2063	>	final Item w2 = !fFirst ? v1 : v2;
2064	>
2065	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2066	>	assertTrue(fst.complete(w1));
2067	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2068	>	checkIncomplete(h1);
2069	>	checkIncomplete(h2);
2070	>	r1.assertNotInvoked();
2071	>	r2.assertNotInvoked();
2072	>	assertTrue(snd.complete(w2));
2073	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2074	>
2075	>	checkCompletedNormally(h1, null);
2076	>	checkCompletedNormally(h2, null);
2077	>	checkCompletedNormally(h3, null);
2078	>	r1.assertInvoked();
2079	>	r2.assertInvoked();
2080	>	r3.assertInvoked();
2081	>	checkCompletedNormally(f, v1);
2082	>	checkCompletedNormally(g, v2);
2083	>	}}
2084
2085		/**
2086		* runAfterBoth result completes exceptionally after exceptional
2087		* completion of either source
2088		*/
2089	<	public void testRunAfterBoth2() {
2090	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2091	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2092	<	Noop r = new Noop();
2093	<	CompletableFuture<Void> g = f.runAfterBoth(f2, r);
2094	<	f.completeExceptionally(new CFException());
2095	<	f2.complete(two);
2096	<	checkCompletedWithWrappedCFException(g);
2097	<
2098	<	r = new Noop();
2099	<	f = new CompletableFuture<Integer>();
2100	<	f.complete(one);
2101	<	f2 = new CompletableFuture<Integer>();
2102	<	g = f.runAfterBoth(f2, r);
2103	<	f2.completeExceptionally(new CFException());
2104	<	checkCompletedWithWrappedCFException(g);
2105	<	}
2089	>	public void testRunAfterBoth_exceptionalCompletion() throws Throwable {
2090	>	for (ExecutionMode m : ExecutionMode.values())
2091	>	for (boolean fFirst : new boolean[] { true, false })
2092	>	for (boolean failFirst : new boolean[] { true, false })
2093	>	for (Item v1 : new Item[] { one, null })
2094	>	{
2095	>	final CompletableFuture<Item> f = new CompletableFuture<>();
2096	>	final CompletableFuture<Item> g = new CompletableFuture<>();
2097	>	final CFException ex = new CFException();
2098	>	final Noop r1 = new Noop(m);
2099	>	final Noop r2 = new Noop(m);
2100	>	final Noop r3 = new Noop(m);
2101	>
2102	>	final CompletableFuture<Item> fst =  fFirst ? f : g;
2103	>	final CompletableFuture<Item> snd = !fFirst ? f : g;
2104	>	final Callable<Boolean> complete1 = failFirst ?
2105	>	() -> fst.completeExceptionally(ex) :
2106	>	() -> fst.complete(v1);
2107	>	final Callable<Boolean> complete2 = failFirst ?
2108	>	() -> snd.complete(v1) :
2109	>	() -> snd.completeExceptionally(ex);
2110	>
2111	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2112	>	assertTrue(complete1.call());
2113	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2114	>	checkIncomplete(h1);
2115	>	checkIncomplete(h2);
2116	>	assertTrue(complete2.call());
2117	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2118	>
2119	>	checkCompletedWithWrappedException(h1, ex);
2120	>	checkCompletedWithWrappedException(h2, ex);
2121	>	checkCompletedWithWrappedException(h3, ex);
2122	>	r1.assertNotInvoked();
2123	>	r2.assertNotInvoked();
2124	>	r3.assertNotInvoked();
2125	>	checkCompletedNormally(failFirst ? snd : fst, v1);
2126	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
2127	>	}}
2128
2129		/**
2130	<	* runAfterBoth result completes exceptionally if action does
2130	>	* runAfterBoth result completes exceptionally if either source cancelled
2131		*/
2132	<	public void testRunAfterBoth3() {
2133	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2134	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2135	<	FailingNoop r = new FailingNoop();
2136	<	CompletableFuture<Void> g = f.runAfterBoth(f2, r);
2137	<	f.complete(one);
2138	<	checkIncomplete(g);
2139	<	f2.complete(two);
2140	<	checkCompletedWithWrappedCFException(g);
2141	<	}
2132	>	public void testRunAfterBoth_sourceCancelled() throws Throwable {
2133	>	for (ExecutionMode m : ExecutionMode.values())
2134	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2135	>	for (boolean fFirst : new boolean[] { true, false })
2136	>	for (boolean failFirst : new boolean[] { true, false })
2137	>	for (Item v1 : new Item[] { one, null })
2138	>	{
2139	>	final CompletableFuture<Item> f = new CompletableFuture<>();
2140	>	final CompletableFuture<Item> g = new CompletableFuture<>();
2141	>	final Noop r1 = new Noop(m);
2142	>	final Noop r2 = new Noop(m);
2143	>	final Noop r3 = new Noop(m);
2144	>
2145	>	final CompletableFuture<Item> fst =  fFirst ? f : g;
2146	>	final CompletableFuture<Item> snd = !fFirst ? f : g;
2147	>	final Callable<Boolean> complete1 = failFirst ?
2148	>	() -> fst.cancel(mayInterruptIfRunning) :
2149	>	() -> fst.complete(v1);
2150	>	final Callable<Boolean> complete2 = failFirst ?
2151	>	() -> snd.complete(v1) :
2152	>	() -> snd.cancel(mayInterruptIfRunning);
2153	>
2154	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2155	>	assertTrue(complete1.call());
2156	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2157	>	checkIncomplete(h1);
2158	>	checkIncomplete(h2);
2159	>	assertTrue(complete2.call());
2160	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2161	>
2162	>	checkCompletedWithWrappedCancellationException(h1);
2163	>	checkCompletedWithWrappedCancellationException(h2);
2164	>	checkCompletedWithWrappedCancellationException(h3);
2165	>	r1.assertNotInvoked();
2166	>	r2.assertNotInvoked();
2167	>	r3.assertNotInvoked();
2168	>	checkCompletedNormally(failFirst ? snd : fst, v1);
2169	>	checkCancelled(failFirst ? fst : snd);
2170	>	}}
2171
2172		/**
2173	<	* runAfterBoth result completes exceptionally if either source cancelled
2173	>	* runAfterBoth result completes exceptionally if action does
2174		*/
2175	<	public void testRunAfterBoth4() {
2176	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2177	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2178	<	Noop r = new Noop();
2179	<	CompletableFuture<Void> g = f.runAfterBoth(f2, r);
2180	<	assertTrue(f.cancel(true));
2181	<	f2.complete(two);
2182	<	checkCompletedWithWrappedCancellationException(g);
2183	<	f = new CompletableFuture<Integer>();
2184	<	f2 = new CompletableFuture<Integer>();
2185	<	r = new Noop();
2186	<	g = f.runAfterBoth(f2, r);
2187	<	f.complete(one);
2188	<	assertTrue(f2.cancel(true));
2189	<	checkCompletedWithWrappedCancellationException(g);
2190	<	}
2175	>	public void testRunAfterBoth_actionFailed() {
2176	>	for (ExecutionMode m : ExecutionMode.values())
2177	>	for (boolean fFirst : new boolean[] { true, false })
2178	>	for (Item v1 : new Item[] { one, null })
2179	>	for (Item v2 : new Item[] { two, null })
2180	>	{
2181	>	final CompletableFuture<Item> f = new CompletableFuture<>();
2182	>	final CompletableFuture<Item> g = new CompletableFuture<>();
2183	>	final FailingRunnable r1 = new FailingRunnable(m);
2184	>	final FailingRunnable r2 = new FailingRunnable(m);
2185	>	final FailingRunnable r3 = new FailingRunnable(m);
2186	>
2187	>	final CompletableFuture<Item> fst =  fFirst ? f : g;
2188	>	final CompletableFuture<Item> snd = !fFirst ? f : g;
2189	>	final Item w1 =  fFirst ? v1 : v2;
2190	>	final Item w2 = !fFirst ? v1 : v2;
2191	>
2192	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2193	>	assertTrue(fst.complete(w1));
2194	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2195	>	assertTrue(snd.complete(w2));
2196	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2197	>
2198	>	checkCompletedWithWrappedException(h1, r1.ex);
2199	>	checkCompletedWithWrappedException(h2, r2.ex);
2200	>	checkCompletedWithWrappedException(h3, r3.ex);
2201	>	r1.assertInvoked();
2202	>	r2.assertInvoked();
2203	>	r3.assertInvoked();
2204	>	checkCompletedNormally(f, v1);
2205	>	checkCompletedNormally(g, v2);
2206	>	}}
2207
2208		/**
2209		* applyToEither result completes normally after normal completion
2210		* of either source
2211		*/
2212	<	public void testApplyToEither() {
2213	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2214	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2215	<	CompletableFuture<Integer> g = f.applyToEither(f2, inc);
2216	<	f.complete(one);
2217	<	checkCompletedNormally(g, two);
2218	<	f2.complete(one);
2219	<	checkCompletedNormally(g, two);
2220	<
2221	<	f = new CompletableFuture<Integer>();
2222	<	f.complete(one);
2223	<	f2 = new CompletableFuture<Integer>();
2224	<	g = f.applyToEither(f2, inc);
2225	<	checkCompletedNormally(g, two);
2226	<	}
2212	>	public void testApplyToEither_normalCompletion() {
2213	>	for (ExecutionMode m : ExecutionMode.values())
2214	>	for (Item v1 : new Item[] { one, null })
2215	>	for (Item v2 : new Item[] { two, null })
2216	>	{
2217	>	final CompletableFuture<Item> f = new CompletableFuture<>();
2218	>	final CompletableFuture<Item> g = new CompletableFuture<>();
2219	>	final IncFunction[] rs = new IncFunction[6];
2220	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2221	>
2222	>	final CompletableFuture<Item> h0 = m.applyToEither(f, g, rs[0]);
2223	>	final CompletableFuture<Item> h1 = m.applyToEither(g, f, rs[1]);
2224	>	checkIncomplete(h0);
2225	>	checkIncomplete(h1);
2226	>	rs[0].assertNotInvoked();
2227	>	rs[1].assertNotInvoked();
2228	>	f.complete(v1);
2229	>	checkCompletedNormally(h0, inc(v1));
2230	>	checkCompletedNormally(h1, inc(v1));
2231	>	final CompletableFuture<Item> h2 = m.applyToEither(f, g, rs[2]);
2232	>	final CompletableFuture<Item> h3 = m.applyToEither(g, f, rs[3]);
2233	>	checkCompletedNormally(h2, inc(v1));
2234	>	checkCompletedNormally(h3, inc(v1));
2235	>	g.complete(v2);
2236	>
2237	>	// unspecified behavior - both source completions available
2238	>	final CompletableFuture<Item> h4 = m.applyToEither(f, g, rs[4]);
2239	>	final CompletableFuture<Item> h5 = m.applyToEither(g, f, rs[5]);
2240	>	rs[4].assertValue(h4.join());
2241	>	rs[5].assertValue(h5.join());
2242	>	assertTrue(Objects.equals(inc(v1), h4.join()) ||
2243	>	Objects.equals(inc(v2), h4.join()));
2244	>	assertTrue(Objects.equals(inc(v1), h5.join()) ||
2245	>	Objects.equals(inc(v2), h5.join()));
2246	>
2247	>	checkCompletedNormally(f, v1);
2248	>	checkCompletedNormally(g, v2);
2249	>	checkCompletedNormally(h0, inc(v1));
2250	>	checkCompletedNormally(h1, inc(v1));
2251	>	checkCompletedNormally(h2, inc(v1));
2252	>	checkCompletedNormally(h3, inc(v1));
2253	>	for (int i = 0; i < 4; i++) rs[i].assertValue(inc(v1));
2254	>	}}
2255
2256		/**
2257		* applyToEither result completes exceptionally after exceptional
2258		* completion of either source
2259		*/
2260	<	public void testApplyToEither2() {
2261	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2262	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2263	<	CompletableFuture<Integer> g = f.applyToEither(f2, inc);
2264	<	f.completeExceptionally(new CFException());
2265	<	f2.complete(one);
2266	<	checkCompletedWithWrappedCFException(g);
2260	>	public void testApplyToEither_exceptionalCompletion() {
2261	>	for (ExecutionMode m : ExecutionMode.values())
2262	>	for (Item v1 : new Item[] { one, null })
2263	>	{
2264	>	final CompletableFuture<Item> f = new CompletableFuture<>();
2265	>	final CompletableFuture<Item> g = new CompletableFuture<>();
2266	>	final CFException ex = new CFException();
2267	>	final IncFunction[] rs = new IncFunction[6];
2268	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2269	>
2270	>	final CompletableFuture<Item> h0 = m.applyToEither(f, g, rs[0]);
2271	>	final CompletableFuture<Item> h1 = m.applyToEither(g, f, rs[1]);
2272	>	checkIncomplete(h0);
2273	>	checkIncomplete(h1);
2274	>	rs[0].assertNotInvoked();
2275	>	rs[1].assertNotInvoked();
2276	>	f.completeExceptionally(ex);
2277	>	checkCompletedWithWrappedException(h0, ex);
2278	>	checkCompletedWithWrappedException(h1, ex);
2279	>	final CompletableFuture<Item> h2 = m.applyToEither(f, g, rs[2]);
2280	>	final CompletableFuture<Item> h3 = m.applyToEither(g, f, rs[3]);
2281	>	checkCompletedWithWrappedException(h2, ex);
2282	>	checkCompletedWithWrappedException(h3, ex);
2283	>	g.complete(v1);
2284	>
2285	>	// unspecified behavior - both source completions available
2286	>	final CompletableFuture<Item> h4 = m.applyToEither(f, g, rs[4]);
2287	>	final CompletableFuture<Item> h5 = m.applyToEither(g, f, rs[5]);
2288	>	try {
2289	>	mustEqual(inc(v1), h4.join());
2290	>	rs[4].assertValue(inc(v1));
2291	>	} catch (CompletionException ok) {
2292	>	checkCompletedWithWrappedException(h4, ex);
2293	>	rs[4].assertNotInvoked();
2294	>	}
2295	>	try {
2296	>	mustEqual(inc(v1), h5.join());
2297	>	rs[5].assertValue(inc(v1));
2298	>	} catch (CompletionException ok) {
2299	>	checkCompletedWithWrappedException(h5, ex);
2300	>	rs[5].assertNotInvoked();
2301	>	}
2302
2303	<	f = new CompletableFuture<Integer>();
2304	<	f2 = new CompletableFuture<Integer>();
2305	<	f2.completeExceptionally(new CFException());
2306	<	g = f.applyToEither(f2, inc);
2307	<	checkCompletedWithWrappedCFException(g);
2308	<	}
2303	>	checkCompletedExceptionally(f, ex);
2304	>	checkCompletedNormally(g, v1);
2305	>	checkCompletedWithWrappedException(h0, ex);
2306	>	checkCompletedWithWrappedException(h1, ex);
2307	>	checkCompletedWithWrappedException(h2, ex);
2308	>	checkCompletedWithWrappedException(h3, ex);
2309	>	checkCompletedWithWrappedException(h4, ex);
2310	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2311	>	}}
2312	>
2313	>	public void testApplyToEither_exceptionalCompletion2() {
2314	>	for (ExecutionMode m : ExecutionMode.values())
2315	>	for (boolean fFirst : new boolean[] { true, false })
2316	>	for (Item v1 : new Item[] { one, null })
2317	>	{
2318	>	final CompletableFuture<Item> f = new CompletableFuture<>();
2319	>	final CompletableFuture<Item> g = new CompletableFuture<>();
2320	>	final CFException ex = new CFException();
2321	>	final IncFunction[] rs = new IncFunction[6];
2322	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2323	>
2324	>	final CompletableFuture<Item> h0 = m.applyToEither(f, g, rs[0]);
2325	>	final CompletableFuture<Item> h1 = m.applyToEither(g, f, rs[1]);
2326	>	assertTrue(fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2327	>	assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2328	>	final CompletableFuture<Item> h2 = m.applyToEither(f, g, rs[2]);
2329	>	final CompletableFuture<Item> h3 = m.applyToEither(g, f, rs[3]);
2330
2331	<	/**
2332	<	* applyToEither result completes exceptionally if action does
2333	<	*/
2334	<	public void testApplyToEither3() {
2335	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2336	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2337	<	FailingFunction r = new FailingFunction();
2338	<	CompletableFuture<Integer> g = f.applyToEither(f2, r);
2339	<	f2.complete(two);
2340	<	checkCompletedWithWrappedCFException(g);
2341	<	}
2331	>	// unspecified behavior - both source completions available
2332	>	try {
2333	>	mustEqual(inc(v1), h0.join());
2334	>	rs[0].assertValue(inc(v1));
2335	>	} catch (CompletionException ok) {
2336	>	checkCompletedWithWrappedException(h0, ex);
2337	>	rs[0].assertNotInvoked();
2338	>	}
2339	>	try {
2340	>	mustEqual(inc(v1), h1.join());
2341	>	rs[1].assertValue(inc(v1));
2342	>	} catch (CompletionException ok) {
2343	>	checkCompletedWithWrappedException(h1, ex);
2344	>	rs[1].assertNotInvoked();
2345	>	}
2346	>	try {
2347	>	mustEqual(inc(v1), h2.join());
2348	>	rs[2].assertValue(inc(v1));
2349	>	} catch (CompletionException ok) {
2350	>	checkCompletedWithWrappedException(h2, ex);
2351	>	rs[2].assertNotInvoked();
2352	>	}
2353	>	try {
2354	>	mustEqual(inc(v1), h3.join());
2355	>	rs[3].assertValue(inc(v1));
2356	>	} catch (CompletionException ok) {
2357	>	checkCompletedWithWrappedException(h3, ex);
2358	>	rs[3].assertNotInvoked();
2359	>	}
2360
2361	<	/**
2362	<	* applyToEither result completes exceptionally if either source cancelled
2363	<	*/
886	<	public void testApplyToEither4() {
887	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
888	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
889	<	CompletableFuture<Integer> g = f.applyToEither(f2, inc);
890	<	assertTrue(f.cancel(true));
891	<	checkCompletedWithWrappedCancellationException(g);
892	<	f = new CompletableFuture<Integer>();
893	<	f2 = new CompletableFuture<Integer>();
894	<	assertTrue(f2.cancel(true));
895	<	checkCompletedWithWrappedCancellationException(g);
896	<	}
2361	>	checkCompletedNormally(f, v1);
2362	>	checkCompletedExceptionally(g, ex);
2363	>	}}
2364
2365		/**
2366	<	* acceptEither result completes normally after normal completion
900	<	* of either source
2366	>	* applyToEither result completes exceptionally if either source cancelled
2367		*/
2368	<	public void testAcceptEither() {
2369	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2370	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2371	<	IncAction r = new IncAction();
2372	<	CompletableFuture<Void> g = f.acceptEither(f2, r);
2373	<	f.complete(one);
2374	<	checkCompletedNormally(g, null);
2375	<	f2.complete(one);
2376	<	checkCompletedNormally(g, null);
2377	<	assertEquals(r.value, 2);
2378	<
2379	<	r = new IncAction();
2380	<	f = new CompletableFuture<Integer>();
2381	<	f.complete(one);
2382	<	f2 = new CompletableFuture<Integer>();
2383	<	g = f.acceptEither(f2, r);
2384	<	checkCompletedNormally(g, null);
2385	<	assertEquals(r.value, 2);
2386	<	}
2368	>	public void testApplyToEither_sourceCancelled() {
2369	>	for (ExecutionMode m : ExecutionMode.values())
2370	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2371	>	for (Item v1 : new Item[] { one, null })
2372	>	{
2373	>	final CompletableFuture<Item> f = new CompletableFuture<>();
2374	>	final CompletableFuture<Item> g = new CompletableFuture<>();
2375	>	final IncFunction[] rs = new IncFunction[6];
2376	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2377	>
2378	>	final CompletableFuture<Item> h0 = m.applyToEither(f, g, rs[0]);
2379	>	final CompletableFuture<Item> h1 = m.applyToEither(g, f, rs[1]);
2380	>	checkIncomplete(h0);
2381	>	checkIncomplete(h1);
2382	>	rs[0].assertNotInvoked();
2383	>	rs[1].assertNotInvoked();
2384	>	f.cancel(mayInterruptIfRunning);
2385	>	checkCompletedWithWrappedCancellationException(h0);
2386	>	checkCompletedWithWrappedCancellationException(h1);
2387	>	final CompletableFuture<Item> h2 = m.applyToEither(f, g, rs[2]);
2388	>	final CompletableFuture<Item> h3 = m.applyToEither(g, f, rs[3]);
2389	>	checkCompletedWithWrappedCancellationException(h2);
2390	>	checkCompletedWithWrappedCancellationException(h3);
2391	>	g.complete(v1);
2392	>
2393	>	// unspecified behavior - both source completions available
2394	>	final CompletableFuture<Item> h4 = m.applyToEither(f, g, rs[4]);
2395	>	final CompletableFuture<Item> h5 = m.applyToEither(g, f, rs[5]);
2396	>	try {
2397	>	mustEqual(inc(v1), h4.join());
2398	>	rs[4].assertValue(inc(v1));
2399	>	} catch (CompletionException ok) {
2400	>	checkCompletedWithWrappedCancellationException(h4);
2401	>	rs[4].assertNotInvoked();
2402	>	}
2403	>	try {
2404	>	mustEqual(inc(v1), h5.join());
2405	>	rs[5].assertValue(inc(v1));
2406	>	} catch (CompletionException ok) {
2407	>	checkCompletedWithWrappedCancellationException(h5);
2408	>	rs[5].assertNotInvoked();
2409	>	}
2410
2411	<	/**
2412	<	* acceptEither result completes exceptionally after exceptional
2413	<	* completion of either source
2414	<	*/
2415	<	public void testAcceptEither2() {
2416	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2417	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2418	<	IncAction r = new IncAction();
2419	<	CompletableFuture<Void> g = f.acceptEither(f2, r);
2420	<	f.completeExceptionally(new CFException());
2421	<	f2.complete(one);
2422	<	checkCompletedWithWrappedCFException(g);
2411	>	checkCancelled(f);
2412	>	checkCompletedNormally(g, v1);
2413	>	checkCompletedWithWrappedCancellationException(h0);
2414	>	checkCompletedWithWrappedCancellationException(h1);
2415	>	checkCompletedWithWrappedCancellationException(h2);
2416	>	checkCompletedWithWrappedCancellationException(h3);
2417	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2418	>	}}
2419	>
2420	>	public void testApplyToEither_sourceCancelled2() {
2421	>	for (ExecutionMode m : ExecutionMode.values())
2422	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2423	>	for (boolean fFirst : new boolean[] { true, false })
2424	>	for (Item v1 : new Item[] { one, null })
2425	>	{
2426	>	final CompletableFuture<Item> f = new CompletableFuture<>();
2427	>	final CompletableFuture<Item> g = new CompletableFuture<>();
2428	>	final IncFunction[] rs = new IncFunction[6];
2429	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2430	>
2431	>	final CompletableFuture<Item> h0 = m.applyToEither(f, g, rs[0]);
2432	>	final CompletableFuture<Item> h1 = m.applyToEither(g, f, rs[1]);
2433	>	assertTrue(fFirst ? f.complete(v1) : g.cancel(mayInterruptIfRunning));
2434	>	assertTrue(!fFirst ? f.complete(v1) : g.cancel(mayInterruptIfRunning));
2435	>	final CompletableFuture<Item> h2 = m.applyToEither(f, g, rs[2]);
2436	>	final CompletableFuture<Item> h3 = m.applyToEither(g, f, rs[3]);
2437
2438	<	r = new IncAction();
2439	<	f = new CompletableFuture<Integer>();
2440	<	f2 = new CompletableFuture<Integer>();
2441	<	f2.completeExceptionally(new CFException());
2442	<	g = f.acceptEither(f2, r);
2443	<	checkCompletedWithWrappedCFException(g);
2444	<	}
2438	>	// unspecified behavior - both source completions available
2439	>	try {
2440	>	mustEqual(inc(v1), h0.join());
2441	>	rs[0].assertValue(inc(v1));
2442	>	} catch (CompletionException ok) {
2443	>	checkCompletedWithWrappedCancellationException(h0);
2444	>	rs[0].assertNotInvoked();
2445	>	}
2446	>	try {
2447	>	mustEqual(inc(v1), h1.join());
2448	>	rs[1].assertValue(inc(v1));
2449	>	} catch (CompletionException ok) {
2450	>	checkCompletedWithWrappedCancellationException(h1);
2451	>	rs[1].assertNotInvoked();
2452	>	}
2453	>	try {
2454	>	mustEqual(inc(v1), h2.join());
2455	>	rs[2].assertValue(inc(v1));
2456	>	} catch (CompletionException ok) {
2457	>	checkCompletedWithWrappedCancellationException(h2);
2458	>	rs[2].assertNotInvoked();
2459	>	}
2460	>	try {
2461	>	mustEqual(inc(v1), h3.join());
2462	>	rs[3].assertValue(inc(v1));
2463	>	} catch (CompletionException ok) {
2464	>	checkCompletedWithWrappedCancellationException(h3);
2465	>	rs[3].assertNotInvoked();
2466	>	}
2467
2468	<	/**
2469	<	* acceptEither result completes exceptionally if action does
2470	<	*/
946	<	public void testAcceptEither3() {
947	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
948	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
949	<	FailingConsumer r = new FailingConsumer();
950	<	CompletableFuture<Void> g = f.acceptEither(f2, r);
951	<	f2.complete(two);
952	<	checkCompletedWithWrappedCFException(g);
953	<	}
2468	>	checkCompletedNormally(f, v1);
2469	>	checkCancelled(g);
2470	>	}}
2471
2472		/**
2473	<	* acceptEither result completes exceptionally if either source cancelled
2473	>	* applyToEither result completes exceptionally if action does
2474		*/
2475	<	public void testAcceptEither4() {
2476	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2477	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2478	<	IncAction r = new IncAction();
2479	<	CompletableFuture<Void> g = f.acceptEither(f2, r);
2480	<	assertTrue(f.cancel(true));
2481	<	checkCompletedWithWrappedCancellationException(g);
2482	<	f = new CompletableFuture<Integer>();
2483	<	f2 = new CompletableFuture<Integer>();
2484	<	assertTrue(f2.cancel(true));
2485	<	checkCompletedWithWrappedCancellationException(g);
2486	<	}
2487	<
2475	>	public void testApplyToEither_actionFailed() {
2476	>	for (ExecutionMode m : ExecutionMode.values())
2477	>	for (Item v1 : new Item[] { one, null })
2478	>	for (Item v2 : new Item[] { two, null })
2479	>	{
2480	>	final CompletableFuture<Item> f = new CompletableFuture<>();
2481	>	final CompletableFuture<Item> g = new CompletableFuture<>();
2482	>	final FailingFunction[] rs = new FailingFunction[6];
2483	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingFunction(m);
2484	>
2485	>	final CompletableFuture<Item> h0 = m.applyToEither(f, g, rs[0]);
2486	>	final CompletableFuture<Item> h1 = m.applyToEither(g, f, rs[1]);
2487	>	f.complete(v1);
2488	>	final CompletableFuture<Item> h2 = m.applyToEither(f, g, rs[2]);
2489	>	final CompletableFuture<Item> h3 = m.applyToEither(g, f, rs[3]);
2490	>	checkCompletedWithWrappedException(h0, rs[0].ex);
2491	>	checkCompletedWithWrappedException(h1, rs[1].ex);
2492	>	checkCompletedWithWrappedException(h2, rs[2].ex);
2493	>	checkCompletedWithWrappedException(h3, rs[3].ex);
2494	>	for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2495	>
2496	>	g.complete(v2);
2497	>
2498	>	// unspecified behavior - both source completions available
2499	>	final CompletableFuture<Item> h4 = m.applyToEither(f, g, rs[4]);
2500	>	final CompletableFuture<Item> h5 = m.applyToEither(g, f, rs[5]);
2501	>
2502	>	checkCompletedWithWrappedException(h4, rs[4].ex);
2503	>	assertTrue(Objects.equals(v1, rs[4].value) ||
2504	>	Objects.equals(v2, rs[4].value));
2505	>	checkCompletedWithWrappedException(h5, rs[5].ex);
2506	>	assertTrue(Objects.equals(v1, rs[5].value) ||
2507	>	Objects.equals(v2, rs[5].value));
2508	>
2509	>	checkCompletedNormally(f, v1);
2510	>	checkCompletedNormally(g, v2);
2511	>	}}
2512
2513		/**
2514	<	* runAfterEither result completes normally after normal completion
2514	>	* acceptEither result completes normally after normal completion
2515		* of either source
2516		*/
2517	<	public void testRunAfterEither() {
2518	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2519	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2520	<	Noop r = new Noop();
2521	<	CompletableFuture<Void> g = f.runAfterEither(f2, r);
2522	<	f.complete(one);
2523	<	checkCompletedNormally(g, null);
2524	<	f2.complete(one);
2525	<	checkCompletedNormally(g, null);
2526	<	assertTrue(r.ran);
2527	<
2528	<	r = new Noop();
2529	<	f = new CompletableFuture<Integer>();
2530	<	f.complete(one);
2531	<	f2 = new CompletableFuture<Integer>();
2532	<	g = f.runAfterEither(f2, r);
2533	<	checkCompletedNormally(g, null);
2534	<	assertTrue(r.ran);
2535	<	}
2517	>	public void testAcceptEither_normalCompletion() {
2518	>	for (ExecutionMode m : ExecutionMode.values())
2519	>	for (Item v1 : new Item[] { one, null })
2520	>	for (Item v2 : new Item[] { two, null })
2521	>	{
2522	>	final CompletableFuture<Item> f = new CompletableFuture<>();
2523	>	final CompletableFuture<Item> g = new CompletableFuture<>();
2524	>	final NoopConsumer[] rs = new NoopConsumer[6];
2525	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2526	>
2527	>	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2528	>	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2529	>	checkIncomplete(h0);
2530	>	checkIncomplete(h1);
2531	>	rs[0].assertNotInvoked();
2532	>	rs[1].assertNotInvoked();
2533	>	f.complete(v1);
2534	>	checkCompletedNormally(h0, null);
2535	>	checkCompletedNormally(h1, null);
2536	>	rs[0].assertValue(v1);
2537	>	rs[1].assertValue(v1);
2538	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2539	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2540	>	checkCompletedNormally(h2, null);
2541	>	checkCompletedNormally(h3, null);
2542	>	rs[2].assertValue(v1);
2543	>	rs[3].assertValue(v1);
2544	>	g.complete(v2);
2545	>
2546	>	// unspecified behavior - both source completions available
2547	>	final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2548	>	final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2549	>	checkCompletedNormally(h4, null);
2550	>	checkCompletedNormally(h5, null);
2551	>	assertTrue(Objects.equals(v1, rs[4].value) ||
2552	>	Objects.equals(v2, rs[4].value));
2553	>	assertTrue(Objects.equals(v1, rs[5].value) ||
2554	>	Objects.equals(v2, rs[5].value));
2555	>
2556	>	checkCompletedNormally(f, v1);
2557	>	checkCompletedNormally(g, v2);
2558	>	checkCompletedNormally(h0, null);
2559	>	checkCompletedNormally(h1, null);
2560	>	checkCompletedNormally(h2, null);
2561	>	checkCompletedNormally(h3, null);
2562	>	for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2563	>	}}
2564
2565		/**
2566	<	* runAfterEither result completes exceptionally after exceptional
2566	>	* acceptEither result completes exceptionally after exceptional
2567		* completion of either source
2568		*/
2569	<	public void testRunAfterEither2() {
2570	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2571	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2572	<	Noop r = new Noop();
2573	<	CompletableFuture<Void> g = f.runAfterEither(f2, r);
2574	<	f.completeExceptionally(new CFException());
2575	<	f2.complete(one);
2576	<	checkCompletedWithWrappedCFException(g);
2569	>	public void testAcceptEither_exceptionalCompletion() {
2570	>	for (ExecutionMode m : ExecutionMode.values())
2571	>	for (Item v1 : new Item[] { one, null })
2572	>	{
2573	>	final CompletableFuture<Item> f = new CompletableFuture<>();
2574	>	final CompletableFuture<Item> g = new CompletableFuture<>();
2575	>	final CFException ex = new CFException();
2576	>	final NoopConsumer[] rs = new NoopConsumer[6];
2577	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2578	>
2579	>	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2580	>	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2581	>	checkIncomplete(h0);
2582	>	checkIncomplete(h1);
2583	>	rs[0].assertNotInvoked();
2584	>	rs[1].assertNotInvoked();
2585	>	f.completeExceptionally(ex);
2586	>	checkCompletedWithWrappedException(h0, ex);
2587	>	checkCompletedWithWrappedException(h1, ex);
2588	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2589	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2590	>	checkCompletedWithWrappedException(h2, ex);
2591	>	checkCompletedWithWrappedException(h3, ex);
2592	>
2593	>	g.complete(v1);
2594	>
2595	>	// unspecified behavior - both source completions available
2596	>	final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2597	>	final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2598	>	try {
2599	>	assertNull(h4.join());
2600	>	rs[4].assertValue(v1);
2601	>	} catch (CompletionException ok) {
2602	>	checkCompletedWithWrappedException(h4, ex);
2603	>	rs[4].assertNotInvoked();
2604	>	}
2605	>	try {
2606	>	assertNull(h5.join());
2607	>	rs[5].assertValue(v1);
2608	>	} catch (CompletionException ok) {
2609	>	checkCompletedWithWrappedException(h5, ex);
2610	>	rs[5].assertNotInvoked();
2611	>	}
2612
2613	<	r = new Noop();
2614	<	f = new CompletableFuture<Integer>();
2615	<	f2 = new CompletableFuture<Integer>();
2616	<	f2.completeExceptionally(new CFException());
2617	<	g = f.runAfterEither(f2, r);
2618	<	checkCompletedWithWrappedCFException(g);
2619	<	}
2613	>	checkCompletedExceptionally(f, ex);
2614	>	checkCompletedNormally(g, v1);
2615	>	checkCompletedWithWrappedException(h0, ex);
2616	>	checkCompletedWithWrappedException(h1, ex);
2617	>	checkCompletedWithWrappedException(h2, ex);
2618	>	checkCompletedWithWrappedException(h3, ex);
2619	>	checkCompletedWithWrappedException(h4, ex);
2620	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2621	>	}}
2622	>
2623	>	public void testAcceptEither_exceptionalCompletion2() {
2624	>	for (ExecutionMode m : ExecutionMode.values())
2625	>	for (boolean fFirst : new boolean[] { true, false })
2626	>	for (Item v1 : new Item[] { one, null })
2627	>	{
2628	>	final CompletableFuture<Item> f = new CompletableFuture<>();
2629	>	final CompletableFuture<Item> g = new CompletableFuture<>();
2630	>	final CFException ex = new CFException();
2631	>	final NoopConsumer[] rs = new NoopConsumer[6];
2632	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2633	>
2634	>	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2635	>	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2636	>	assertTrue(fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2637	>	assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2638	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2639	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2640
2641	<	/**
2642	<	* runAfterEither result completes exceptionally if action does
2643	<	*/
2644	<	public void testRunAfterEither3() {
2645	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2646	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2647	<	FailingNoop r = new FailingNoop();
2648	<	CompletableFuture<Void> g = f.runAfterEither(f2, r);
2649	<	f2.complete(two);
2650	<	checkCompletedWithWrappedCFException(g);
2651	<	}
2641	>	// unspecified behavior - both source completions available
2642	>	try {
2643	>	assertNull(h0.join());
2644	>	rs[0].assertValue(v1);
2645	>	} catch (CompletionException ok) {
2646	>	checkCompletedWithWrappedException(h0, ex);
2647	>	rs[0].assertNotInvoked();
2648	>	}
2649	>	try {
2650	>	assertNull(h1.join());
2651	>	rs[1].assertValue(v1);
2652	>	} catch (CompletionException ok) {
2653	>	checkCompletedWithWrappedException(h1, ex);
2654	>	rs[1].assertNotInvoked();
2655	>	}
2656	>	try {
2657	>	assertNull(h2.join());
2658	>	rs[2].assertValue(v1);
2659	>	} catch (CompletionException ok) {
2660	>	checkCompletedWithWrappedException(h2, ex);
2661	>	rs[2].assertNotInvoked();
2662	>	}
2663	>	try {
2664	>	assertNull(h3.join());
2665	>	rs[3].assertValue(v1);
2666	>	} catch (CompletionException ok) {
2667	>	checkCompletedWithWrappedException(h3, ex);
2668	>	rs[3].assertNotInvoked();
2669	>	}
2670
2671	<	/**
2672	<	* runAfterEither result completes exceptionally if either source cancelled
2673	<	*/
1032	<	public void testRunAfterEither4() {
1033	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1034	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1035	<	Noop r = new Noop();
1036	<	CompletableFuture<Void> g = f.runAfterEither(f2, r);
1037	<	assertTrue(f.cancel(true));
1038	<	checkCompletedWithWrappedCancellationException(g);
1039	<	f = new CompletableFuture<Integer>();
1040	<	f2 = new CompletableFuture<Integer>();
1041	<	assertTrue(f2.cancel(true));
1042	<	checkCompletedWithWrappedCancellationException(g);
1043	<	}
2671	>	checkCompletedNormally(f, v1);
2672	>	checkCompletedExceptionally(g, ex);
2673	>	}}
2674
2675		/**
2676	<	* thenCompose result completes normally after normal completion of source
2676	>	* acceptEither result completes exceptionally if either source cancelled
2677		*/
2678	<	public void testThenCompose() {
2679	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2680	<	CompletableFutureInc r = new CompletableFutureInc();
2681	<	CompletableFuture<Integer> g = f.thenCompose(r);
2682	<	f.complete(one);
2683	<	checkCompletedNormally(g, two);
2684	<	}
2678	>	public void testAcceptEither_sourceCancelled() {
2679	>	for (ExecutionMode m : ExecutionMode.values())
2680	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2681	>	for (Item v1 : new Item[] { one, null })
2682	>	{
2683	>	final CompletableFuture<Item> f = new CompletableFuture<>();
2684	>	final CompletableFuture<Item> g = new CompletableFuture<>();
2685	>	final NoopConsumer[] rs = new NoopConsumer[6];
2686	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2687	>
2688	>	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2689	>	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2690	>	checkIncomplete(h0);
2691	>	checkIncomplete(h1);
2692	>	rs[0].assertNotInvoked();
2693	>	rs[1].assertNotInvoked();
2694	>	f.cancel(mayInterruptIfRunning);
2695	>	checkCompletedWithWrappedCancellationException(h0);
2696	>	checkCompletedWithWrappedCancellationException(h1);
2697	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2698	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2699	>	checkCompletedWithWrappedCancellationException(h2);
2700	>	checkCompletedWithWrappedCancellationException(h3);
2701	>
2702	>	g.complete(v1);
2703	>
2704	>	// unspecified behavior - both source completions available
2705	>	final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2706	>	final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2707	>	try {
2708	>	assertNull(h4.join());
2709	>	rs[4].assertValue(v1);
2710	>	} catch (CompletionException ok) {
2711	>	checkCompletedWithWrappedCancellationException(h4);
2712	>	rs[4].assertNotInvoked();
2713	>	}
2714	>	try {
2715	>	assertNull(h5.join());
2716	>	rs[5].assertValue(v1);
2717	>	} catch (CompletionException ok) {
2718	>	checkCompletedWithWrappedCancellationException(h5);
2719	>	rs[5].assertNotInvoked();
2720	>	}
2721
2722	<	/**
2723	<	* thenCompose result completes exceptionally after exceptional
2724	<	* completion of source
2725	<	*/
2726	<	public void testThenCompose2() {
2727	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2728	<	CompletableFutureInc r = new CompletableFutureInc();
2729	<	CompletableFuture<Integer> g = f.thenCompose(r);
1064	<	f.completeExceptionally(new CFException());
1065	<	checkCompletedWithWrappedCFException(g);
1066	<	}
2722	>	checkCancelled(f);
2723	>	checkCompletedNormally(g, v1);
2724	>	checkCompletedWithWrappedCancellationException(h0);
2725	>	checkCompletedWithWrappedCancellationException(h1);
2726	>	checkCompletedWithWrappedCancellationException(h2);
2727	>	checkCompletedWithWrappedCancellationException(h3);
2728	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2729	>	}}
2730
2731		/**
2732	<	* thenCompose result completes exceptionally if action does
2732	>	* acceptEither result completes exceptionally if action does
2733		*/
2734	<	public void testThenCompose3() {
2735	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2736	<	FailingCompletableFutureFunction r = new FailingCompletableFutureFunction();
2737	<	CompletableFuture<Integer> g = f.thenCompose(r);
2738	<	f.complete(one);
2739	<	checkCompletedWithWrappedCFException(g);
2740	<	}
2734	>	public void testAcceptEither_actionFailed() {
2735	>	for (ExecutionMode m : ExecutionMode.values())
2736	>	for (Item v1 : new Item[] { one, null })
2737	>	for (Item v2 : new Item[] { two, null })
2738	>	{
2739	>	final CompletableFuture<Item> f = new CompletableFuture<>();
2740	>	final CompletableFuture<Item> g = new CompletableFuture<>();
2741	>	final FailingConsumer[] rs = new FailingConsumer[6];
2742	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingConsumer(m);
2743	>
2744	>	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2745	>	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2746	>	f.complete(v1);
2747	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2748	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2749	>	checkCompletedWithWrappedException(h0, rs[0].ex);
2750	>	checkCompletedWithWrappedException(h1, rs[1].ex);
2751	>	checkCompletedWithWrappedException(h2, rs[2].ex);
2752	>	checkCompletedWithWrappedException(h3, rs[3].ex);
2753	>	for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2754	>
2755	>	g.complete(v2);
2756	>
2757	>	// unspecified behavior - both source completions available
2758	>	final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2759	>	final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2760	>
2761	>	checkCompletedWithWrappedException(h4, rs[4].ex);
2762	>	assertTrue(Objects.equals(v1, rs[4].value) ||
2763	>	Objects.equals(v2, rs[4].value));
2764	>	checkCompletedWithWrappedException(h5, rs[5].ex);
2765	>	assertTrue(Objects.equals(v1, rs[5].value) ||
2766	>	Objects.equals(v2, rs[5].value));
2767	>
2768	>	checkCompletedNormally(f, v1);
2769	>	checkCompletedNormally(g, v2);
2770	>	}}
2771
2772		/**
2773	<	* thenCompose result completes exceptionally if source cancelled
2773	>	* runAfterEither result completes normally after normal completion
2774	>	* of either source
2775		*/
2776	<	public void testThenCompose4() {
2777	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2778	<	CompletableFutureInc r = new CompletableFutureInc();
2779	<	CompletableFuture<Integer> g = f.thenCompose(r);
2780	<	assertTrue(f.cancel(true));
2781	<	checkCompletedWithWrappedCancellationException(g);
2782	<	}
2783	<
2784	<
2785	<	// asyncs
2776	>	public void testRunAfterEither_normalCompletion() {
2777	>	for (ExecutionMode m : ExecutionMode.values())
2778	>	for (Item v1 : new Item[] { one, null })
2779	>	for (Item v2 : new Item[] { two, null })
2780	>	for (boolean pushNop : new boolean[] { true, false })
2781	>	{
2782	>	final CompletableFuture<Item> f = new CompletableFuture<>();
2783	>	final CompletableFuture<Item> g = new CompletableFuture<>();
2784	>	final Noop[] rs = new Noop[6];
2785	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2786	>
2787	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2788	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2789	>	checkIncomplete(h0);
2790	>	checkIncomplete(h1);
2791	>	rs[0].assertNotInvoked();
2792	>	rs[1].assertNotInvoked();
2793	>	if (pushNop) {          // ad hoc test of intra-completion interference
2794	>	m.thenRun(f, () -> {});
2795	>	m.thenRun(g, () -> {});
2796	>	}
2797	>	f.complete(v1);
2798	>	checkCompletedNormally(h0, null);
2799	>	checkCompletedNormally(h1, null);
2800	>	rs[0].assertInvoked();
2801	>	rs[1].assertInvoked();
2802	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2803	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2804	>	checkCompletedNormally(h2, null);
2805	>	checkCompletedNormally(h3, null);
2806	>	rs[2].assertInvoked();
2807	>	rs[3].assertInvoked();
2808	>
2809	>	g.complete(v2);
2810	>
2811	>	final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2812	>	final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2813	>
2814	>	checkCompletedNormally(f, v1);
2815	>	checkCompletedNormally(g, v2);
2816	>	checkCompletedNormally(h0, null);
2817	>	checkCompletedNormally(h1, null);
2818	>	checkCompletedNormally(h2, null);
2819	>	checkCompletedNormally(h3, null);
2820	>	checkCompletedNormally(h4, null);
2821	>	checkCompletedNormally(h5, null);
2822	>	for (int i = 0; i < 6; i++) rs[i].assertInvoked();
2823	>	}}
2824
2825		/**
2826	<	* thenRunAsync result completes normally after normal completion of source
2826	>	* runAfterEither result completes exceptionally after exceptional
2827	>	* completion of either source
2828		*/
2829	<	public void testThenRunAsync() {
2830	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2831	<	Noop r = new Noop();
2832	<	CompletableFuture<Void> g = f.thenRunAsync(r);
2833	<	f.complete(null);
2834	<	checkCompletedNormally(g, null);
2829	>	public void testRunAfterEither_exceptionalCompletion() {
2830	>	for (ExecutionMode m : ExecutionMode.values())
2831	>	for (Item v1 : new Item[] { one, null })
2832	>	{
2833	>	final CompletableFuture<Item> f = new CompletableFuture<>();
2834	>	final CompletableFuture<Item> g = new CompletableFuture<>();
2835	>	final CFException ex = new CFException();
2836	>	final Noop[] rs = new Noop[6];
2837	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2838	>
2839	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2840	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2841	>	checkIncomplete(h0);
2842	>	checkIncomplete(h1);
2843	>	rs[0].assertNotInvoked();
2844	>	rs[1].assertNotInvoked();
2845	>	assertTrue(f.completeExceptionally(ex));
2846	>	checkCompletedWithWrappedException(h0, ex);
2847	>	checkCompletedWithWrappedException(h1, ex);
2848	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2849	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2850	>	checkCompletedWithWrappedException(h2, ex);
2851	>	checkCompletedWithWrappedException(h3, ex);
2852	>
2853	>	assertTrue(g.complete(v1));
2854	>
2855	>	// unspecified behavior - both source completions available
2856	>	final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2857	>	final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2858	>	try {
2859	>	assertNull(h4.join());
2860	>	rs[4].assertInvoked();
2861	>	} catch (CompletionException ok) {
2862	>	checkCompletedWithWrappedException(h4, ex);
2863	>	rs[4].assertNotInvoked();
2864	>	}
2865	>	try {
2866	>	assertNull(h5.join());
2867	>	rs[5].assertInvoked();
2868	>	} catch (CompletionException ok) {
2869	>	checkCompletedWithWrappedException(h5, ex);
2870	>	rs[5].assertNotInvoked();
2871	>	}
2872
2873	<	// reordered version
2874	<	f = new CompletableFuture<Integer>();
2875	<	f.complete(null);
2876	<	r = new Noop();
2877	<	g = f.thenRunAsync(r);
2878	<	checkCompletedNormally(g, null);
2879	<	}
2873	>	checkCompletedExceptionally(f, ex);
2874	>	checkCompletedNormally(g, v1);
2875	>	checkCompletedWithWrappedException(h0, ex);
2876	>	checkCompletedWithWrappedException(h1, ex);
2877	>	checkCompletedWithWrappedException(h2, ex);
2878	>	checkCompletedWithWrappedException(h3, ex);
2879	>	checkCompletedWithWrappedException(h4, ex);
2880	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2881	>	}}
2882	>
2883	>	public void testRunAfterEither_exceptionalCompletion2() {
2884	>	for (ExecutionMode m : ExecutionMode.values())
2885	>	for (boolean fFirst : new boolean[] { true, false })
2886	>	for (Item v1 : new Item[] { one, null })
2887	>	{
2888	>	final CompletableFuture<Item> f = new CompletableFuture<>();
2889	>	final CompletableFuture<Item> g = new CompletableFuture<>();
2890	>	final CFException ex = new CFException();
2891	>	final Noop[] rs = new Noop[6];
2892	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2893	>
2894	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2895	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2896	>	assertTrue( fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2897	>	assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2898	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2899	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2900
2901	<	/**
1112	<	* thenRunAsync result completes exceptionally after exceptional
1113	<	* completion of source
1114	<	*/
1115	<	public void testThenRunAsync2() {
1116	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1117	<	Noop r = new Noop();
1118	<	CompletableFuture<Void> g = f.thenRunAsync(r);
1119	<	f.completeExceptionally(new CFException());
2901	>	// unspecified behavior - both source completions available
2902		try {
2903	<	g.join();
2904	<	shouldThrow();
2905	<	} catch (Exception ok) {
2903	>	assertNull(h0.join());
2904	>	rs[0].assertInvoked();
2905	>	} catch (CompletionException ok) {
2906	>	checkCompletedWithWrappedException(h0, ex);
2907	>	rs[0].assertNotInvoked();
2908	>	}
2909	>	try {
2910	>	assertNull(h1.join());
2911	>	rs[1].assertInvoked();
2912	>	} catch (CompletionException ok) {
2913	>	checkCompletedWithWrappedException(h1, ex);
2914	>	rs[1].assertNotInvoked();
2915	>	}
2916	>	try {
2917	>	assertNull(h2.join());
2918	>	rs[2].assertInvoked();
2919	>	} catch (CompletionException ok) {
2920	>	checkCompletedWithWrappedException(h2, ex);
2921	>	rs[2].assertNotInvoked();
2922	>	}
2923	>	try {
2924	>	assertNull(h3.join());
2925	>	rs[3].assertInvoked();
2926	>	} catch (CompletionException ok) {
2927	>	checkCompletedWithWrappedException(h3, ex);
2928	>	rs[3].assertNotInvoked();
2929		}
1125	–	checkCompletedWithWrappedCFException(g);
1126	–	}
1127	–
1128	–	/**
1129	–	* thenRunAsync result completes exceptionally if action does
1130	–	*/
1131	–	public void testThenRunAsync3() {
1132	–	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1133	–	FailingNoop r = new FailingNoop();
1134	–	CompletableFuture<Void> g = f.thenRunAsync(r);
1135	–	f.complete(null);
1136	–	checkCompletedWithWrappedCFException(g);
1137	–	}
2930
2931	<	/**
2932	<	* thenRunAsync result completes exceptionally if source cancelled
2933	<	*/
1142	<	public void testThenRunAsync4() {
1143	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1144	<	Noop r = new Noop();
1145	<	CompletableFuture<Void> g = f.thenRunAsync(r);
1146	<	assertTrue(f.cancel(true));
1147	<	checkCompletedWithWrappedCancellationException(g);
1148	<	}
2931	>	checkCompletedNormally(f, v1);
2932	>	checkCompletedExceptionally(g, ex);
2933	>	}}
2934
2935		/**
2936	<	* thenApplyAsync result completes normally after normal completion of source
2936	>	* runAfterEither result completes exceptionally if either source cancelled
2937		*/
2938	<	public void testThenApplyAsync() {
2939	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2940	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc);
2941	<	f.complete(one);
2942	<	checkCompletedNormally(g, two);
2943	<	}
2938	>	public void testRunAfterEither_sourceCancelled() {
2939	>	for (ExecutionMode m : ExecutionMode.values())
2940	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2941	>	for (Item v1 : new Item[] { one, null })
2942	>	{
2943	>	final CompletableFuture<Item> f = new CompletableFuture<>();
2944	>	final CompletableFuture<Item> g = new CompletableFuture<>();
2945	>	final Noop[] rs = new Noop[6];
2946	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2947	>
2948	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2949	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2950	>	checkIncomplete(h0);
2951	>	checkIncomplete(h1);
2952	>	rs[0].assertNotInvoked();
2953	>	rs[1].assertNotInvoked();
2954	>	f.cancel(mayInterruptIfRunning);
2955	>	checkCompletedWithWrappedCancellationException(h0);
2956	>	checkCompletedWithWrappedCancellationException(h1);
2957	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2958	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2959	>	checkCompletedWithWrappedCancellationException(h2);
2960	>	checkCompletedWithWrappedCancellationException(h3);
2961	>
2962	>	assertTrue(g.complete(v1));
2963	>
2964	>	// unspecified behavior - both source completions available
2965	>	final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2966	>	final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2967	>	try {
2968	>	assertNull(h4.join());
2969	>	rs[4].assertInvoked();
2970	>	} catch (CompletionException ok) {
2971	>	checkCompletedWithWrappedCancellationException(h4);
2972	>	rs[4].assertNotInvoked();
2973	>	}
2974	>	try {
2975	>	assertNull(h5.join());
2976	>	rs[5].assertInvoked();
2977	>	} catch (CompletionException ok) {
2978	>	checkCompletedWithWrappedCancellationException(h5);
2979	>	rs[5].assertNotInvoked();
2980	>	}
2981
2982	<	/**
2983	<	* thenApplyAsync result completes exceptionally after exceptional
2984	<	* completion of source
2985	<	*/
2986	<	public void testThenApplyAsync2() {
2987	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2988	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc);
2989	<	f.completeExceptionally(new CFException());
1168	<	checkCompletedWithWrappedCFException(g);
1169	<	}
2982	>	checkCancelled(f);
2983	>	checkCompletedNormally(g, v1);
2984	>	checkCompletedWithWrappedCancellationException(h0);
2985	>	checkCompletedWithWrappedCancellationException(h1);
2986	>	checkCompletedWithWrappedCancellationException(h2);
2987	>	checkCompletedWithWrappedCancellationException(h3);
2988	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2989	>	}}
2990
2991		/**
2992	<	* thenApplyAsync result completes exceptionally if action does
2992	>	* runAfterEither result completes exceptionally if action does
2993		*/
2994	<	public void testThenApplyAsync3() {
2995	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2996	<	FailingFunction r = new FailingFunction();
2997	<	CompletableFuture<Integer> g = f.thenApplyAsync(r);
2998	<	f.complete(null);
2999	<	checkCompletedWithWrappedCFException(g);
3000	<	}
2994	>	public void testRunAfterEither_actionFailed() {
2995	>	for (ExecutionMode m : ExecutionMode.values())
2996	>	for (Item v1 : new Item[] { one, null })
2997	>	for (Item v2 : new Item[] { two, null })
2998	>	{
2999	>	final CompletableFuture<Item> f = new CompletableFuture<>();
3000	>	final CompletableFuture<Item> g = new CompletableFuture<>();
3001	>	final FailingRunnable[] rs = new FailingRunnable[6];
3002	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingRunnable(m);
3003	>
3004	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
3005	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
3006	>	assertTrue(f.complete(v1));
3007	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
3008	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
3009	>	checkCompletedWithWrappedException(h0, rs[0].ex);
3010	>	checkCompletedWithWrappedException(h1, rs[1].ex);
3011	>	checkCompletedWithWrappedException(h2, rs[2].ex);
3012	>	checkCompletedWithWrappedException(h3, rs[3].ex);
3013	>	for (int i = 0; i < 4; i++) rs[i].assertInvoked();
3014	>	assertTrue(g.complete(v2));
3015	>	final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
3016	>	final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
3017	>	checkCompletedWithWrappedException(h4, rs[4].ex);
3018	>	checkCompletedWithWrappedException(h5, rs[5].ex);
3019	>
3020	>	checkCompletedNormally(f, v1);
3021	>	checkCompletedNormally(g, v2);
3022	>	for (int i = 0; i < 6; i++) rs[i].assertInvoked();
3023	>	}}
3024
3025		/**
3026	<	* thenApplyAsync result completes exceptionally if source cancelled
3026	>	* thenCompose result completes normally after normal completion of source
3027		*/
3028	<	public void testThenApplyAsync4() {
3029	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3030	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc);
3031	<	assertTrue(f.cancel(true));
3032	<	checkCompletedWithWrappedCancellationException(g);
3033	<	}
3028	>	public void testThenCompose_normalCompletion() {
3029	>	for (ExecutionMode m : ExecutionMode.values())
3030	>	for (boolean createIncomplete : new boolean[] { true, false })
3031	>	for (Item v1 : new Item[] { one, null })
3032	>	{
3033	>	final CompletableFuture<Item> f = new CompletableFuture<>();
3034	>	final CompletableFutureInc r = new CompletableFutureInc(m);
3035	>	if (!createIncomplete) assertTrue(f.complete(v1));
3036	>	final CompletableFuture<Item> g = m.thenCompose(f, r);
3037	>	if (createIncomplete) assertTrue(f.complete(v1));
3038	>
3039	>	checkCompletedNormally(g, inc(v1));
3040	>	checkCompletedNormally(f, v1);
3041	>	r.assertValue(v1);
3042	>	}}
3043
3044		/**
3045	<	* thenAcceptAsync result completes normally after normal
3045	>	* thenCompose result completes exceptionally after exceptional
3046		* completion of source
3047		*/
3048	<	public void testThenAcceptAsync() {
3049	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3050	<	IncAction r = new IncAction();
3051	<	CompletableFuture<Void> g = f.thenAcceptAsync(r);
3052	<	f.complete(one);
3053	<	checkCompletedNormally(g, null);
3054	<	assertEquals(r.value, 2);
3055	<	}
3048	>	public void testThenCompose_exceptionalCompletion() {
3049	>	for (ExecutionMode m : ExecutionMode.values())
3050	>	for (boolean createIncomplete : new boolean[] { true, false })
3051	>	{
3052	>	final CFException ex = new CFException();
3053	>	final CompletableFutureInc r = new CompletableFutureInc(m);
3054	>	final CompletableFuture<Item> f = new CompletableFuture<>();
3055	>	if (!createIncomplete) f.completeExceptionally(ex);
3056	>	final CompletableFuture<Item> g = m.thenCompose(f, r);
3057	>	if (createIncomplete) f.completeExceptionally(ex);
3058	>
3059	>	checkCompletedWithWrappedException(g, ex);
3060	>	checkCompletedExceptionally(f, ex);
3061	>	r.assertNotInvoked();
3062	>	}}
3063
3064		/**
3065	<	* thenAcceptAsync result completes exceptionally after exceptional
1207	<	* completion of source
3065	>	* thenCompose result completes exceptionally if action does
3066		*/
3067	<	public void testThenAcceptAsync2() {
3068	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3069	<	IncAction r = new IncAction();
3070	<	CompletableFuture<Void> g = f.thenAcceptAsync(r);
3071	<	f.completeExceptionally(new CFException());
3072	<	checkCompletedWithWrappedCFException(g);
3073	<	}
3067	>	public void testThenCompose_actionFailed() {
3068	>	for (ExecutionMode m : ExecutionMode.values())
3069	>	for (boolean createIncomplete : new boolean[] { true, false })
3070	>	for (Item v1 : new Item[] { one, null })
3071	>	{
3072	>	final CompletableFuture<Item> f = new CompletableFuture<>();
3073	>	final FailingCompletableFutureFunction r
3074	>	= new FailingCompletableFutureFunction(m);
3075	>	if (!createIncomplete) assertTrue(f.complete(v1));
3076	>	final CompletableFuture<Item> g = m.thenCompose(f, r);
3077	>	if (createIncomplete) assertTrue(f.complete(v1));
3078	>
3079	>	checkCompletedWithWrappedException(g, r.ex);
3080	>	checkCompletedNormally(f, v1);
3081	>	}}
3082
3083		/**
3084	<	* thenAcceptAsync result completes exceptionally if action does
3084	>	* thenCompose result completes exceptionally if source cancelled
3085		*/
3086	<	public void testThenAcceptAsync3() {
3087	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3088	<	FailingConsumer r = new FailingConsumer();
3089	<	CompletableFuture<Void> g = f.thenAcceptAsync(r);
3090	<	f.complete(null);
3091	<	checkCompletedWithWrappedCFException(g);
3092	<	}
3086	>	public void testThenCompose_sourceCancelled() {
3087	>	for (ExecutionMode m : ExecutionMode.values())
3088	>	for (boolean createIncomplete : new boolean[] { true, false })
3089	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3090	>	{
3091	>	final CompletableFuture<Item> f = new CompletableFuture<>();
3092	>	final CompletableFutureInc r = new CompletableFutureInc(m);
3093	>	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
3094	>	final CompletableFuture<Item> g = m.thenCompose(f, r);
3095	>	if (createIncomplete) {
3096	>	checkIncomplete(g);
3097	>	assertTrue(f.cancel(mayInterruptIfRunning));
3098	>	}
3099
1228	–	/**
1229	–	* thenAcceptAsync result completes exceptionally if source cancelled
1230	–	*/
1231	–	public void testThenAcceptAsync4() {
1232	–	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1233	–	IncAction r = new IncAction();
1234	–	CompletableFuture<Void> g = f.thenAcceptAsync(r);
1235	–	assertTrue(f.cancel(true));
3100		checkCompletedWithWrappedCancellationException(g);
3101	<	}
3102	<	/**
1239	<	* thenCombineAsync result completes normally after normal
1240	<	* completion of sources
1241	<	*/
1242	<	public void testThenCombineAsync() {
1243	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1244	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1245	<	CompletableFuture<Integer> g = f.thenCombineAsync(f2, add);
1246	<	f.complete(one);
1247	<	checkIncomplete(g);
1248	<	f2.complete(two);
1249	<	checkCompletedNormally(g, three);
1250	<	}
1251	<
1252	<	/**
1253	<	* thenCombineAsync result completes exceptionally after exceptional
1254	<	* completion of source
1255	<	*/
1256	<	public void testThenCombineAsync2() {
1257	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1258	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1259	<	CompletableFuture<Integer> g = f.thenCombineAsync(f2, add);
1260	<	f.completeExceptionally(new CFException());
1261	<	f2.complete(two);
1262	<	checkCompletedWithWrappedCFException(g);
1263	<
1264	<	f = new CompletableFuture<Integer>();
1265	<	f2 = new CompletableFuture<Integer>();
1266	<	g = f.thenCombineAsync(f2, add);
1267	<	f.complete(one);
1268	<	f2.completeExceptionally(new CFException());
1269	<	checkCompletedWithWrappedCFException(g);
1270	<	}
1271	<
1272	<	/**
1273	<	* thenCombineAsync result completes exceptionally if action does
1274	<	*/
1275	<	public void testThenCombineAsync3() {
1276	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1277	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1278	<	FailingBiFunction r = new FailingBiFunction();
1279	<	CompletableFuture<Integer> g = f.thenCombineAsync(f2, r);
1280	<	f.complete(one);
1281	<	checkIncomplete(g);
1282	<	f2.complete(two);
1283	<	checkCompletedWithWrappedCFException(g);
1284	<	}
3101	>	checkCancelled(f);
3102	>	}}
3103
3104		/**
3105	<	* thenCombineAsync result completes exceptionally if either source cancelled
3105	>	* thenCompose result completes exceptionally if the result of the action does
3106		*/
3107	<	public void testThenCombineAsync4() {
3108	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3109	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3110	<	CompletableFuture<Integer> g = f.thenCombineAsync(f2, add);
3111	<	assertTrue(f.cancel(true));
3112	<	f2.complete(two);
3113	<	checkCompletedWithWrappedCancellationException(g);
3114	<
3115	<	f = new CompletableFuture<Integer>();
3116	<	f2 = new CompletableFuture<Integer>();
3117	<	g = f.thenCombineAsync(f2, add);
3118	<	f.complete(one);
3119	<	assertTrue(f2.cancel(true));
3120	<	checkCompletedWithWrappedCancellationException(g);
3121	<	}
3107	>	public void testThenCompose_actionReturnsFailingFuture() {
3108	>	for (ExecutionMode m : ExecutionMode.values())
3109	>	for (int order = 0; order < 6; order++)
3110	>	for (Item v1 : new Item[] { one, null })
3111	>	{
3112	>	final CFException ex = new CFException();
3113	>	final CompletableFuture<Item> f = new CompletableFuture<>();
3114	>	final CompletableFuture<Item> g = new CompletableFuture<>();
3115	>	final CompletableFuture<Item> h;
3116	>	// Test all permutations of orders
3117	>	switch (order) {
3118	>	case 0:
3119	>	assertTrue(f.complete(v1));
3120	>	assertTrue(g.completeExceptionally(ex));
3121	>	h = m.thenCompose(f, x -> g);
3122	>	break;
3123	>	case 1:
3124	>	assertTrue(f.complete(v1));
3125	>	h = m.thenCompose(f, x -> g);
3126	>	assertTrue(g.completeExceptionally(ex));
3127	>	break;
3128	>	case 2:
3129	>	assertTrue(g.completeExceptionally(ex));
3130	>	assertTrue(f.complete(v1));
3131	>	h = m.thenCompose(f, x -> g);
3132	>	break;
3133	>	case 3:
3134	>	assertTrue(g.completeExceptionally(ex));
3135	>	h = m.thenCompose(f, x -> g);
3136	>	assertTrue(f.complete(v1));
3137	>	break;
3138	>	case 4:
3139	>	h = m.thenCompose(f, x -> g);
3140	>	assertTrue(f.complete(v1));
3141	>	assertTrue(g.completeExceptionally(ex));
3142	>	break;
3143	>	case 5:
3144	>	h = m.thenCompose(f, x -> g);
3145	>	assertTrue(f.complete(v1));
3146	>	assertTrue(g.completeExceptionally(ex));
3147	>	break;
3148	>	default: throw new AssertionError();
3149	>	}
3150
3151	<	/**
3152	<	* thenAcceptBothAsync result completes normally after normal
3153	<	* completion of sources
3154	<	*/
1309	<	public void testThenAcceptBothAsync() {
1310	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1311	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1312	<	AddAction r = new AddAction();
1313	<	CompletableFuture<Void> g = f.thenAcceptBothAsync(f2, r);
1314	<	f.complete(one);
1315	<	checkIncomplete(g);
1316	<	f2.complete(two);
1317	<	checkCompletedNormally(g, null);
1318	<	assertEquals(r.value, 3);
1319	<	}
3151	>	checkCompletedExceptionally(g, ex);
3152	>	checkCompletedWithWrappedException(h, ex);
3153	>	checkCompletedNormally(f, v1);
3154	>	}}
3155
3156		/**
3157	<	* thenAcceptBothAsync result completes exceptionally after exceptional
3157	>	* exceptionallyCompose result completes normally after normal
3158		* completion of source
3159		*/
3160	<	public void testThenAcceptBothAsync2() {
3161	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3162	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3163	<	AddAction r = new AddAction();
3164	<	CompletableFuture<Void> g = f.thenAcceptBothAsync(f2, r);
3165	<	f.completeExceptionally(new CFException());
3166	<	f2.complete(two);
3167	<	checkCompletedWithWrappedCFException(g);
3168	<
3169	<	r = new AddAction();
3170	<	f = new CompletableFuture<Integer>();
3171	<	f2 = new CompletableFuture<Integer>();
3172	<	g = f.thenAcceptBothAsync(f2, r);
3173	<	f.complete(one);
3174	<	f2.completeExceptionally(new CFException());
3175	<	checkCompletedWithWrappedCFException(g);
1341	<	}
3160	>	public void testExceptionallyCompose_normalCompletion() {
3161	>	for (ExecutionMode m : ExecutionMode.values())
3162	>	for (boolean createIncomplete : new boolean[] { true, false })
3163	>	for (Item v1 : new Item[] { one, null })
3164	>	{
3165	>	final CompletableFuture<Item> f = new CompletableFuture<>();
3166	>	final ExceptionalCompletableFutureFunction r =
3167	>	new ExceptionalCompletableFutureFunction(m);
3168	>	if (!createIncomplete) assertTrue(f.complete(v1));
3169	>	final CompletableFuture<Item> g = m.exceptionallyCompose(f, r);
3170	>	if (createIncomplete) assertTrue(f.complete(v1));
3171	>
3172	>	checkCompletedNormally(f, v1);
3173	>	checkCompletedNormally(g, v1);
3174	>	r.assertNotInvoked();
3175	>	}}
3176
3177		/**
3178	<	* thenAcceptBothAsync result completes exceptionally if action does
3178	>	* exceptionallyCompose result completes normally after exceptional
3179	>	* completion of source
3180		*/
3181	<	public void testThenAcceptBothAsync3() {
3182	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3183	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3184	<	FailingBiConsumer r = new FailingBiConsumer();
3185	<	CompletableFuture<Void> g = f.thenAcceptBothAsync(f2, r);
3186	<	f.complete(one);
3187	<	checkIncomplete(g);
3188	<	f2.complete(two);
3189	<	checkCompletedWithWrappedCFException(g);
3190	<	}
3181	>	public void testExceptionallyCompose_exceptionalCompletion() {
3182	>	for (ExecutionMode m : ExecutionMode.values())
3183	>	for (boolean createIncomplete : new boolean[] { true, false })
3184	>	{
3185	>	final CFException ex = new CFException();
3186	>	final ExceptionalCompletableFutureFunction r =
3187	>	new ExceptionalCompletableFutureFunction(m);
3188	>	final CompletableFuture<Item> f = new CompletableFuture<>();
3189	>	if (!createIncomplete) f.completeExceptionally(ex);
3190	>	final CompletableFuture<Item> g = m.exceptionallyCompose(f, r);
3191	>	if (createIncomplete) f.completeExceptionally(ex);
3192	>
3193	>	checkCompletedExceptionally(f, ex);
3194	>	checkCompletedNormally(g, r.value);
3195	>	r.assertInvoked();
3196	>	}}
3197	>
3198	>	/**
3199	>	* exceptionallyCompose completes exceptionally on exception if action does
3200	>	*/
3201	>	public void testExceptionallyCompose_actionFailed() {
3202	>	for (ExecutionMode m : ExecutionMode.values())
3203	>	for (boolean createIncomplete : new boolean[] { true, false })
3204	>	{
3205	>	final CFException ex = new CFException();
3206	>	final CompletableFuture<Item> f = new CompletableFuture<>();
3207	>	final FailingExceptionalCompletableFutureFunction r
3208	>	= new FailingExceptionalCompletableFutureFunction(m);
3209	>	if (!createIncomplete) f.completeExceptionally(ex);
3210	>	final CompletableFuture<Item> g = m.exceptionallyCompose(f, r);
3211	>	if (createIncomplete) f.completeExceptionally(ex);
3212	>
3213	>	checkCompletedExceptionally(f, ex);
3214	>	checkCompletedWithWrappedException(g, r.ex);
3215	>	r.assertInvoked();
3216	>	}}
3217	>
3218	>	/**
3219	>	* exceptionallyCompose result completes exceptionally if the
3220	>	* result of the action does
3221	>	*/
3222	>	public void testExceptionallyCompose_actionReturnsFailingFuture() {
3223	>	for (ExecutionMode m : ExecutionMode.values())
3224	>	for (int order = 0; order < 6; order++)
3225	>	{
3226	>	final CFException ex0 = new CFException();
3227	>	final CFException ex = new CFException();
3228	>	final CompletableFuture<Item> f = new CompletableFuture<>();
3229	>	final CompletableFuture<Item> g = new CompletableFuture<>();
3230	>	final CompletableFuture<Item> h;
3231	>	// Test all permutations of orders
3232	>	switch (order) {
3233	>	case 0:
3234	>	assertTrue(f.completeExceptionally(ex0));
3235	>	assertTrue(g.completeExceptionally(ex));
3236	>	h = m.exceptionallyCompose(f, x -> g);
3237	>	break;
3238	>	case 1:
3239	>	assertTrue(f.completeExceptionally(ex0));
3240	>	h = m.exceptionallyCompose(f, x -> g);
3241	>	assertTrue(g.completeExceptionally(ex));
3242	>	break;
3243	>	case 2:
3244	>	assertTrue(g.completeExceptionally(ex));
3245	>	assertTrue(f.completeExceptionally(ex0));
3246	>	h = m.exceptionallyCompose(f, x -> g);
3247	>	break;
3248	>	case 3:
3249	>	assertTrue(g.completeExceptionally(ex));
3250	>	h = m.exceptionallyCompose(f, x -> g);
3251	>	assertTrue(f.completeExceptionally(ex0));
3252	>	break;
3253	>	case 4:
3254	>	h = m.exceptionallyCompose(f, x -> g);
3255	>	assertTrue(f.completeExceptionally(ex0));
3256	>	assertTrue(g.completeExceptionally(ex));
3257	>	break;
3258	>	case 5:
3259	>	h = m.exceptionallyCompose(f, x -> g);
3260	>	assertTrue(f.completeExceptionally(ex0));
3261	>	assertTrue(g.completeExceptionally(ex));
3262	>	break;
3263	>	default: throw new AssertionError();
3264	>	}
3265
3266	<	/**
3267	<	* thenAcceptBothAsync result completes exceptionally if either source cancelled
3268	<	*/
3269	<	public void testThenAcceptBothAsync4() {
1361	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1362	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1363	<	AddAction r = new AddAction();
1364	<	CompletableFuture<Void> g = f.thenAcceptBothAsync(f2, r);
1365	<	assertTrue(f.cancel(true));
1366	<	f2.complete(two);
1367	<	checkCompletedWithWrappedCancellationException(g);
3266	>	checkCompletedExceptionally(g, ex);
3267	>	checkCompletedWithWrappedException(h, ex);
3268	>	checkCompletedExceptionally(f, ex0);
3269	>	}}
3270
3271	<	r = new AddAction();
1370	<	f = new CompletableFuture<Integer>();
1371	<	f2 = new CompletableFuture<Integer>();
1372	<	g = f.thenAcceptBothAsync(f2, r);
1373	<	f.complete(one);
1374	<	assertTrue(f2.cancel(true));
1375	<	checkCompletedWithWrappedCancellationException(g);
1376	<	}
3271	>	// other static methods
3272
3273		/**
3274	<	* runAfterBothAsync result completes normally after normal
3275	<	* completion of sources
3274	>	* allOf(no component futures) returns a future completed normally
3275	>	* with the value null
3276		*/
3277	<	public void testRunAfterBothAsync() {
3278	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3279	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1385	<	Noop r = new Noop();
1386	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r);
1387	<	f.complete(one);
1388	<	checkIncomplete(g);
1389	<	f2.complete(two);
1390	<	checkCompletedNormally(g, null);
1391	<	assertTrue(r.ran);
3277	>	public void testAllOf_empty() throws Exception {
3278	>	CompletableFuture<Void> f = CompletableFuture.allOf();
3279	>	checkCompletedNormally(f, null);
3280		}
3281
3282		/**
3283	<	* runAfterBothAsync result completes exceptionally after exceptional
3284	<	* completion of source
3283	>	* allOf returns a future completed normally with the value null
3284	>	* when all components complete normally
3285		*/
3286	<	public void testRunAfterBothAsync2() {
3287	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3288	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3289	<	Noop r = new Noop();
3290	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r);
3291	<	f.completeExceptionally(new CFException());
3292	<	f2.complete(two);
3293	<	checkCompletedWithWrappedCFException(g);
3294	<
3295	<	r = new Noop();
3296	<	f = new CompletableFuture<Integer>();
3297	<	f2 = new CompletableFuture<Integer>();
3298	<	g = f.runAfterBothAsync(f2, r);
3299	<	f.complete(one);
3300	<	f2.completeExceptionally(new CFException());
3301	<	checkCompletedWithWrappedCFException(g);
3286	>	public void testAllOf_normal() throws Exception {
3287	>	for (int k = 1; k < 10; k++) {
3288	>	@SuppressWarnings("unchecked")
3289	>	CompletableFuture<Item>[] fs
3290	>	= (CompletableFuture<Item>[]) new CompletableFuture[k];
3291	>	for (int i = 0; i < k; i++)
3292	>	fs[i] = new CompletableFuture<>();
3293	>	CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3294	>	for (int i = 0; i < k; i++) {
3295	>	checkIncomplete(f);
3296	>	checkIncomplete(CompletableFuture.allOf(fs));
3297	>	fs[i].complete(one);
3298	>	}
3299	>	checkCompletedNormally(f, null);
3300	>	checkCompletedNormally(CompletableFuture.allOf(fs), null);
3301	>	}
3302		}
3303
3304	<	/**
3305	<	* runAfterBothAsync result completes exceptionally if action does
3306	<	*/
3307	<	public void testRunAfterBothAsync3() {
3308	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3309	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3310	<	FailingNoop r = new FailingNoop();
3311	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r);
3312	<	f.complete(one);
3313	<	checkIncomplete(g);
3314	<	f2.complete(two);
3315	<	checkCompletedWithWrappedCFException(g);
3304	>	public void testAllOf_normal_backwards() throws Exception {
3305	>	for (int k = 1; k < 10; k++) {
3306	>	@SuppressWarnings("unchecked")
3307	>	CompletableFuture<Item>[] fs
3308	>	= (CompletableFuture<Item>[]) new CompletableFuture[k];
3309	>	for (int i = 0; i < k; i++)
3310	>	fs[i] = new CompletableFuture<>();
3311	>	CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3312	>	for (int i = k - 1; i >= 0; i--) {
3313	>	checkIncomplete(f);
3314	>	checkIncomplete(CompletableFuture.allOf(fs));
3315	>	fs[i].complete(one);
3316	>	}
3317	>	checkCompletedNormally(f, null);
3318	>	checkCompletedNormally(CompletableFuture.allOf(fs), null);
3319	>	}
3320		}
3321
3322	<	/**
3323	<	* runAfterBothAsync result completes exceptionally if either source cancelled
3324	<	*/
3325	<	public void testRunAfterBothAsync4() {
3326	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3327	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3328	<	Noop r = new Noop();
3329	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r);
3330	<	assertTrue(f.cancel(true));
3331	<	f2.complete(two);
3332	<	checkCompletedWithWrappedCancellationException(g);
3333	<
3334	<	r = new Noop();
3335	<	f = new CompletableFuture<Integer>();
3336	<	f2 = new CompletableFuture<Integer>();
3337	<	g = f.runAfterBothAsync(f2, r);
3338	<	f.complete(one);
3339	<	assertTrue(f2.cancel(true));
3340	<	checkCompletedWithWrappedCancellationException(g);
3322	>	public void testAllOf_exceptional() throws Exception {
3323	>	for (int k = 1; k < 10; k++) {
3324	>	@SuppressWarnings("unchecked")
3325	>	CompletableFuture<Item>[] fs
3326	>	= (CompletableFuture<Item>[]) new CompletableFuture[k];
3327	>	CFException ex = new CFException();
3328	>	for (int i = 0; i < k; i++)
3329	>	fs[i] = new CompletableFuture<>();
3330	>	CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3331	>	for (int i = 0; i < k; i++) {
3332	>	Item I = itemFor(i);
3333	>	checkIncomplete(f);
3334	>	checkIncomplete(CompletableFuture.allOf(fs));
3335	>	if (i != k / 2) {
3336	>	fs[i].complete(I);
3337	>	checkCompletedNormally(fs[i], I);
3338	>	} else {
3339	>	fs[i].completeExceptionally(ex);
3340	>	checkCompletedExceptionally(fs[i], ex);
3341	>	}
3342	>	}
3343	>	checkCompletedWithWrappedException(f, ex);
3344	>	checkCompletedWithWrappedException(CompletableFuture.allOf(fs), ex);
3345	>	}
3346		}
3347
3348		/**
3349	<	* applyToEitherAsync result completes normally after normal
1453	<	* completion of sources
3349	>	* anyOf(no component futures) returns an incomplete future
3350		*/
3351	<	public void testApplyToEitherAsync() {
3352	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3353	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3354	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc);
3355	<	f.complete(one);
1460	<	checkCompletedNormally(g, two);
3351	>	public void testAnyOf_empty() throws Exception {
3352	>	for (Item v1 : new Item[] { one, null })
3353	>	{
3354	>	CompletableFuture<Object> f = CompletableFuture.anyOf();
3355	>	checkIncomplete(f);
3356
3357	<	f = new CompletableFuture<Integer>();
3358	<	f.complete(one);
3359	<	f2 = new CompletableFuture<Integer>();
1465	<	g = f.applyToEitherAsync(f2, inc);
1466	<	checkCompletedNormally(g, two);
1467	<	}
3357	>	f.complete(v1);
3358	>	checkCompletedNormally(f, v1);
3359	>	}}
3360
3361		/**
3362	<	* applyToEitherAsync result completes exceptionally after exceptional
3363	<	* completion of source
3364	<	*/
3365	<	public void testApplyToEitherAsync2() {
3366	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3367	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3368	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc);
3369	<	f.completeExceptionally(new CFException());
3370	<	checkCompletedWithWrappedCFException(g);
3371	<
3372	<	f = new CompletableFuture<Integer>();
3373	<	f2 = new CompletableFuture<Integer>();
3374	<	f2.completeExceptionally(new CFException());
3375	<	g = f.applyToEitherAsync(f2, inc);
3376	<	f.complete(one);
3377	<	checkCompletedWithWrappedCFException(g);
3362	>	* anyOf returns a future completed normally with a value when
3363	>	* a component future does
3364	>	*/
3365	>	public void testAnyOf_normal() throws Exception {
3366	>	for (int k = 0; k < 10; k++) {
3367	>	@SuppressWarnings("unchecked")
3368	>	CompletableFuture<Item>[] fs =
3369	>	(CompletableFuture<Item>[])new CompletableFuture[k];
3370	>	for (int i = 0; i < k; i++)
3371	>	fs[i] = new CompletableFuture<>();
3372	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3373	>	checkIncomplete(f);
3374	>	for (int i = 0; i < k; i++) {
3375	>	fs[i].complete(itemFor(i));
3376	>	checkCompletedNormally(f, zero);
3377	>	Item x = (Item)CompletableFuture.anyOf(fs).join();
3378	>	assertTrue(0 <= x.value && x.value <= i);
3379	>	}
3380	>	}
3381		}
3382	<
3383	<	/**
3384	<	* applyToEitherAsync result completes exceptionally if action does
3385	<	*/
3386	<	public void testApplyToEitherAsync3() {
3387	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3388	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3389	<	FailingFunction r = new FailingFunction();
3390	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, r);
3391	<	f.complete(one);
3392	<	checkCompletedWithWrappedCFException(g);
3382	>	public void testAnyOf_normal_backwards() throws Exception {
3383	>	for (int k = 0; k < 10; k++) {
3384	>	@SuppressWarnings("unchecked")
3385	>	CompletableFuture<Item>[] fs =
3386	>	(CompletableFuture<Item>[])new CompletableFuture[k];
3387	>	for (int i = 0; i < k; i++)
3388	>	fs[i] = new CompletableFuture<>();
3389	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3390	>	checkIncomplete(f);
3391	>	for (int i = k - 1; i >= 0; i--) {
3392	>	fs[i].complete(itemFor(i));
3393	>	checkCompletedNormally(f, itemFor(k - 1));
3394	>	Item x = (Item)CompletableFuture.anyOf(fs).join();
3395	>	assertTrue(i <= x.value && x.value <= k - 1);
3396	>	}
3397	>	}
3398		}
3399
3400		/**
3401	<	* applyToEitherAsync result completes exceptionally if either source cancelled
3401	>	* anyOf result completes exceptionally when any component does.
3402		*/
3403	<	public void testApplyToEitherAsync4() {
3404	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3405	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3406	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc);
3407	<	assertTrue(f.cancel(true));
3408	<	checkCompletedWithWrappedCancellationException(g);
3409	<
3410	<	f = new CompletableFuture<Integer>();
3411	<	f2 = new CompletableFuture<Integer>();
3412	<	assertTrue(f2.cancel(true));
3413	<	g = f.applyToEitherAsync(f2, inc);
3414	<	checkCompletedWithWrappedCancellationException(g);
3403	>	public void testAnyOf_exceptional() throws Exception {
3404	>	for (int k = 0; k < 10; k++) {
3405	>	@SuppressWarnings("unchecked")
3406	>	CompletableFuture<Item>[] fs =
3407	>	(CompletableFuture<Item>[])new CompletableFuture[k];
3408	>	CFException[] exs = new CFException[k];
3409	>	for (int i = 0; i < k; i++) {
3410	>	fs[i] = new CompletableFuture<>();
3411	>	exs[i] = new CFException();
3412	>	}
3413	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3414	>	checkIncomplete(f);
3415	>	for (int i = 0; i < k; i++) {
3416	>	fs[i].completeExceptionally(exs[i]);
3417	>	checkCompletedWithWrappedException(f, exs[0]);
3418	>	checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3419	>	}
3420	>	}
3421		}
3422
3423	<	/**
3424	<	* acceptEitherAsync result completes normally after normal
3425	<	* completion of sources
3426	<	*/
3427	<	public void testAcceptEitherAsync() {
3428	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3429	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3430	<	IncAction r = new IncAction();
3431	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
3432	<	f.complete(one);
3433	<	checkCompletedNormally(g, null);
3434	<	assertEquals(r.value, 2);
3435	<
3436	<	r = new IncAction();
3437	<	f = new CompletableFuture<Integer>();
3438	<	f.complete(one);
3439	<	f2 = new CompletableFuture<Integer>();
3440	<	g = f.acceptEitherAsync(f2, r);
1535	<	checkCompletedNormally(g, null);
1536	<	assertEquals(r.value, 2);
3423	>	public void testAnyOf_exceptional_backwards() throws Exception {
3424	>	for (int k = 0; k < 10; k++) {
3425	>	@SuppressWarnings("unchecked")
3426	>	CompletableFuture<Object>[] fs =
3427	>	(CompletableFuture<Object>[])new CompletableFuture[k];
3428	>	CFException[] exs = new CFException[k];
3429	>	for (int i = 0; i < k; i++) {
3430	>	fs[i] = new CompletableFuture<>();
3431	>	exs[i] = new CFException();
3432	>	}
3433	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3434	>	checkIncomplete(f);
3435	>	for (int i = k - 1; i >= 0; i--) {
3436	>	fs[i].completeExceptionally(exs[i]);
3437	>	checkCompletedWithWrappedException(f, exs[k - 1]);
3438	>	checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3439	>	}
3440	>	}
3441		}
3442
3443		/**
3444	<	* acceptEitherAsync result completes exceptionally after exceptional
1541	<	* completion of source
3444	>	* Completion methods throw NullPointerException with null arguments
3445		*/
3446	<	public void testAcceptEitherAsync2() {
3447	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3448	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3449	<	IncAction r = new IncAction();
3450	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
3451	<	f.completeExceptionally(new CFException());
3452	<	checkCompletedWithWrappedCFException(g);
3446	>	@SuppressWarnings("FutureReturnValueIgnored")
3447	>	public void testNPE() {
3448	>	CompletableFuture<Item> f = new CompletableFuture<>();
3449	>	CompletableFuture<Item> g = new CompletableFuture<>();
3450	>	CompletableFuture<Item> nullFuture = (CompletableFuture<Item>)null;
3451	>	ThreadExecutor exec = new ThreadExecutor();
3452	>
3453	>	assertThrows(
3454	>	NullPointerException.class,
3455	>
3456	>	() -> CompletableFuture.supplyAsync(null),
3457	>	() -> CompletableFuture.supplyAsync(null, exec),
3458	>	() -> CompletableFuture.supplyAsync(new ItemSupplier(ExecutionMode.SYNC, fortytwo), null),
3459	>
3460	>	() -> CompletableFuture.runAsync(null),
3461	>	() -> CompletableFuture.runAsync(null, exec),
3462	>	() -> CompletableFuture.runAsync(() -> {}, null),
3463	>
3464	>	() -> f.completeExceptionally(null),
3465	>
3466	>	() -> f.thenApply(null),
3467	>	() -> f.thenApplyAsync(null),
3468	>	() -> f.thenApplyAsync(x -> x, null),
3469	>	() -> f.thenApplyAsync(null, exec),
3470	>
3471	>	() -> f.thenAccept(null),
3472	>	() -> f.thenAcceptAsync(null),
3473	>	() -> f.thenAcceptAsync(x -> {} , null),
3474	>	() -> f.thenAcceptAsync(null, exec),
3475	>
3476	>	() -> f.thenRun(null),
3477	>	() -> f.thenRunAsync(null),
3478	>	() -> f.thenRunAsync(() -> {} , null),
3479	>	() -> f.thenRunAsync(null, exec),
3480	>
3481	>	() -> f.thenCombine(g, null),
3482	>	() -> f.thenCombineAsync(g, null),
3483	>	() -> f.thenCombineAsync(g, null, exec),
3484	>	() -> f.thenCombine(nullFuture, (x, y) -> x),
3485	>	() -> f.thenCombineAsync(nullFuture, (x, y) -> x),
3486	>	() -> f.thenCombineAsync(nullFuture, (x, y) -> x, exec),
3487	>	() -> f.thenCombineAsync(g, (x, y) -> x, null),
3488	>
3489	>	() -> f.thenAcceptBoth(g, null),
3490	>	() -> f.thenAcceptBothAsync(g, null),
3491	>	() -> f.thenAcceptBothAsync(g, null, exec),
3492	>	() -> f.thenAcceptBoth(nullFuture, (x, y) -> {}),
3493	>	() -> f.thenAcceptBothAsync(nullFuture, (x, y) -> {}),
3494	>	() -> f.thenAcceptBothAsync(nullFuture, (x, y) -> {}, exec),
3495	>	() -> f.thenAcceptBothAsync(g, (x, y) -> {}, null),
3496	>
3497	>	() -> f.runAfterBoth(g, null),
3498	>	() -> f.runAfterBothAsync(g, null),
3499	>	() -> f.runAfterBothAsync(g, null, exec),
3500	>	() -> f.runAfterBoth(nullFuture, () -> {}),
3501	>	() -> f.runAfterBothAsync(nullFuture, () -> {}),
3502	>	() -> f.runAfterBothAsync(nullFuture, () -> {}, exec),
3503	>	() -> f.runAfterBothAsync(g, () -> {}, null),
3504	>
3505	>	() -> f.applyToEither(g, null),
3506	>	() -> f.applyToEitherAsync(g, null),
3507	>	() -> f.applyToEitherAsync(g, null, exec),
3508	>	() -> f.applyToEither(nullFuture, x -> x),
3509	>	() -> f.applyToEitherAsync(nullFuture, x -> x),
3510	>	() -> f.applyToEitherAsync(nullFuture, x -> x, exec),
3511	>	() -> f.applyToEitherAsync(g, x -> x, null),
3512	>
3513	>	() -> f.acceptEither(g, null),
3514	>	() -> f.acceptEitherAsync(g, null),
3515	>	() -> f.acceptEitherAsync(g, null, exec),
3516	>	() -> f.acceptEither(nullFuture, x -> {}),
3517	>	() -> f.acceptEitherAsync(nullFuture, x -> {}),
3518	>	() -> f.acceptEitherAsync(nullFuture, x -> {}, exec),
3519	>	() -> f.acceptEitherAsync(g, x -> {}, null),
3520	>
3521	>	() -> f.runAfterEither(g, null),
3522	>	() -> f.runAfterEitherAsync(g, null),
3523	>	() -> f.runAfterEitherAsync(g, null, exec),
3524	>	() -> f.runAfterEither(nullFuture, () -> {}),
3525	>	() -> f.runAfterEitherAsync(nullFuture, () -> {}),
3526	>	() -> f.runAfterEitherAsync(nullFuture, () -> {}, exec),
3527	>	() -> f.runAfterEitherAsync(g, () -> {}, null),
3528	>
3529	>	() -> f.thenCompose(null),
3530	>	() -> f.thenComposeAsync(null),
3531	>	() -> f.thenComposeAsync(new CompletableFutureInc(ExecutionMode.EXECUTOR), null),
3532	>	() -> f.thenComposeAsync(null, exec),
3533	>
3534	>	() -> f.exceptionally(null),
3535	>
3536	>	() -> f.handle(null),
3537	>
3538	>	() -> CompletableFuture.allOf((CompletableFuture<?>)null),
3539	>	() -> CompletableFuture.allOf((CompletableFuture<?>[])null),
3540	>	() -> CompletableFuture.allOf(f, null),
3541	>	() -> CompletableFuture.allOf(null, f),
3542	>
3543	>	() -> CompletableFuture.anyOf((CompletableFuture<?>)null),
3544	>	() -> CompletableFuture.anyOf((CompletableFuture<?>[])null),
3545	>	() -> CompletableFuture.anyOf(f, null),
3546	>	() -> CompletableFuture.anyOf(null, f),
3547	>
3548	>	() -> f.obtrudeException(null),
3549	>
3550	>	() -> CompletableFuture.delayedExecutor(1L, SECONDS, null),
3551	>	() -> CompletableFuture.delayedExecutor(1L, null, exec),
3552	>	() -> CompletableFuture.delayedExecutor(1L, null),
3553	>
3554	>	() -> f.orTimeout(1L, null),
3555	>	() -> f.completeOnTimeout(fortytwo, 1L, null),
3556	>
3557	>	() -> CompletableFuture.failedFuture(null),
3558	>	() -> CompletableFuture.failedStage(null));
3559	>
3560	>	mustEqual(0, exec.count.get());
3561	>	}
3562	>
3563	>	/**
3564	>	* Test submissions to an executor that rejects all tasks.
3565	>	*/
3566	>	public void testRejectingExecutor() {
3567	>	for (Item v : new Item[] { one, null })
3568	>	{
3569	>	final CountingRejectingExecutor e = new CountingRejectingExecutor();
3570	>
3571	>	final CompletableFuture<Item> complete = CompletableFuture.completedFuture(v);
3572	>	final CompletableFuture<Item> incomplete = new CompletableFuture<>();
3573	>
3574	>	List<CompletableFuture<?>> futures = new ArrayList<>();
3575	>
3576	>	List<CompletableFuture<Item>> srcs = new ArrayList<>();
3577	>	srcs.add(complete);
3578	>	srcs.add(incomplete);
3579	>
3580	>	for (CompletableFuture<Item> src : srcs) {
3581	>	List<CompletableFuture<?>> fs = new ArrayList<>();
3582	>	fs.add(src.thenRunAsync(() -> {}, e));
3583	>	fs.add(src.thenAcceptAsync(z -> {}, e));
3584	>	fs.add(src.thenApplyAsync(z -> z, e));
3585	>
3586	>	fs.add(src.thenCombineAsync(src, (x, y) -> x, e));
3587	>	fs.add(src.thenAcceptBothAsync(src, (x, y) -> {}, e));
3588	>	fs.add(src.runAfterBothAsync(src, () -> {}, e));
3589	>
3590	>	fs.add(src.applyToEitherAsync(src, z -> z, e));
3591	>	fs.add(src.acceptEitherAsync(src, z -> {}, e));
3592	>	fs.add(src.runAfterEitherAsync(src, () -> {}, e));
3593	>
3594	>	fs.add(src.thenComposeAsync(z -> null, e));
3595	>	fs.add(src.whenCompleteAsync((z, t) -> {}, e));
3596	>	fs.add(src.handleAsync((z, t) -> null, e));
3597	>
3598	>	for (CompletableFuture<?> future : fs) {
3599	>	if (src.isDone())
3600	>	checkCompletedWithWrappedException(future, e.ex);
3601	>	else
3602	>	checkIncomplete(future);
3603	>	}
3604	>	futures.addAll(fs);
3605	>	}
3606
3607	<	r = new IncAction();
3608	<	f = new CompletableFuture<Integer>();
1553	<	f2 = new CompletableFuture<Integer>();
1554	<	f2.completeExceptionally(new CFException());
1555	<	g = f.acceptEitherAsync(f2, r);
1556	<	f.complete(one);
1557	<	checkCompletedWithWrappedCFException(g);
1558	<	}
3607	>	{
3608	>	List<CompletableFuture<?>> fs = new ArrayList<>();
3609
3610	<	/**
3611	<	* acceptEitherAsync result completes exceptionally if action does
1562	<	*/
1563	<	public void testAcceptEitherAsync3() {
1564	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1565	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1566	<	FailingConsumer r = new FailingConsumer();
1567	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
1568	<	f.complete(one);
1569	<	checkCompletedWithWrappedCFException(g);
1570	<	}
3610	>	fs.add(complete.thenCombineAsync(incomplete, (x, y) -> x, e));
3611	>	fs.add(incomplete.thenCombineAsync(complete, (x, y) -> x, e));
3612
3613	<	/**
3614	<	* acceptEitherAsync result completes exceptionally if either
1574	<	* source cancelled
1575	<	*/
1576	<	public void testAcceptEitherAsync4() {
1577	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1578	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1579	<	IncAction r = new IncAction();
1580	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
1581	<	assertTrue(f.cancel(true));
1582	<	checkCompletedWithWrappedCancellationException(g);
3613	>	fs.add(complete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3614	>	fs.add(incomplete.thenAcceptBothAsync(complete, (x, y) -> {}, e));
3615
3616	<	r = new IncAction();
3617	<	f = new CompletableFuture<Integer>();
1586	<	f2 = new CompletableFuture<Integer>();
1587	<	assertTrue(f2.cancel(true));
1588	<	g = f.acceptEitherAsync(f2, r);
1589	<	checkCompletedWithWrappedCancellationException(g);
1590	<	}
3616	>	fs.add(complete.runAfterBothAsync(incomplete, () -> {}, e));
3617	>	fs.add(incomplete.runAfterBothAsync(complete, () -> {}, e));
3618
3619	<	/**
3620	<	* runAfterEitherAsync result completes normally after normal
3621	<	* completion of sources
3622	<	*/
1596	<	public void testRunAfterEitherAsync() {
1597	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1598	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1599	<	Noop r = new Noop();
1600	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
1601	<	f.complete(one);
1602	<	checkCompletedNormally(g, null);
1603	<	assertTrue(r.ran);
3619	>	for (CompletableFuture<?> future : fs)
3620	>	checkIncomplete(future);
3621	>	futures.addAll(fs);
3622	>	}
3623
3624	<	r = new Noop();
3625	<	f = new CompletableFuture<Integer>();
1607	<	f.complete(one);
1608	<	f2 = new CompletableFuture<Integer>();
1609	<	g = f.runAfterEitherAsync(f2, r);
1610	<	checkCompletedNormally(g, null);
1611	<	assertTrue(r.ran);
1612	<	}
3624	>	{
3625	>	List<CompletableFuture<?>> fs = new ArrayList<>();
3626
3627	<	/**
3628	<	* runAfterEitherAsync result completes exceptionally after exceptional
1616	<	* completion of source
1617	<	*/
1618	<	public void testRunAfterEitherAsync2() {
1619	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1620	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1621	<	Noop r = new Noop();
1622	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
1623	<	f.completeExceptionally(new CFException());
1624	<	checkCompletedWithWrappedCFException(g);
3627	>	fs.add(complete.applyToEitherAsync(incomplete, z -> z, e));
3628	>	fs.add(incomplete.applyToEitherAsync(complete, z -> z, e));
3629
3630	<	r = new Noop();
3631	<	f = new CompletableFuture<Integer>();
1628	<	f2 = new CompletableFuture<Integer>();
1629	<	f2.completeExceptionally(new CFException());
1630	<	g = f.runAfterEitherAsync(f2, r);
1631	<	f.complete(one);
1632	<	checkCompletedWithWrappedCFException(g);
1633	<	}
3630	>	fs.add(complete.acceptEitherAsync(incomplete, z -> {}, e));
3631	>	fs.add(incomplete.acceptEitherAsync(complete, z -> {}, e));
3632
3633	<	/**
3634	<	* runAfterEitherAsync result completes exceptionally if action does
1637	<	*/
1638	<	public void testRunAfterEitherAsync3() {
1639	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1640	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1641	<	FailingNoop r = new FailingNoop();
1642	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
1643	<	f.complete(one);
1644	<	checkCompletedWithWrappedCFException(g);
1645	<	}
3633	>	fs.add(complete.runAfterEitherAsync(incomplete, () -> {}, e));
3634	>	fs.add(incomplete.runAfterEitherAsync(complete, () -> {}, e));
3635
3636	<	/**
3637	<	* runAfterEitherAsync result completes exceptionally if either
3638	<	* source cancelled
3639	<	*/
1651	<	public void testRunAfterEitherAsync4() {
1652	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1653	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1654	<	Noop r = new Noop();
1655	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
1656	<	assertTrue(f.cancel(true));
1657	<	checkCompletedWithWrappedCancellationException(g);
3636	>	for (CompletableFuture<?> future : fs)
3637	>	checkCompletedWithWrappedException(future, e.ex);
3638	>	futures.addAll(fs);
3639	>	}
3640
3641	<	r = new Noop();
1660	<	f = new CompletableFuture<Integer>();
1661	<	f2 = new CompletableFuture<Integer>();
1662	<	assertTrue(f2.cancel(true));
1663	<	g = f.runAfterEitherAsync(f2, r);
1664	<	checkCompletedWithWrappedCancellationException(g);
1665	<	}
3641	>	incomplete.complete(v);
3642
3643	<	/**
3644	<	* thenComposeAsync result completes normally after normal
1669	<	* completion of source
1670	<	*/
1671	<	public void testThenComposeAsync() {
1672	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1673	<	CompletableFutureInc r = new CompletableFutureInc();
1674	<	CompletableFuture<Integer> g = f.thenComposeAsync(r);
1675	<	f.complete(one);
1676	<	checkCompletedNormally(g, two);
1677	<	}
3643	>	for (CompletableFuture<?> future : futures)
3644	>	checkCompletedWithWrappedException(future, e.ex);
3645
3646	<	/**
3647	<	* thenComposeAsync result completes exceptionally after
1681	<	* exceptional completion of source
1682	<	*/
1683	<	public void testThenComposeAsync2() {
1684	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1685	<	CompletableFutureInc r = new CompletableFutureInc();
1686	<	CompletableFuture<Integer> g = f.thenComposeAsync(r);
1687	<	f.completeExceptionally(new CFException());
1688	<	checkCompletedWithWrappedCFException(g);
1689	<	}
3646	>	mustEqual(futures.size(), e.count.get());
3647	>	}}
3648
3649		/**
3650	<	* thenComposeAsync result completes exceptionally if action does
3650	>	* Test submissions to an executor that rejects all tasks, but
3651	>	* should never be invoked because the dependent future is
3652	>	* explicitly completed.
3653		*/
3654	<	public void testThenComposeAsync3() {
3655	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3656	<	FailingCompletableFutureFunction r = new FailingCompletableFutureFunction();
3657	<	CompletableFuture<Integer> g = f.thenComposeAsync(r);
1698	<	f.complete(one);
1699	<	checkCompletedWithWrappedCFException(g);
1700	<	}
1701	<
1702	<	/**
1703	<	* thenComposeAsync result completes exceptionally if source cancelled
1704	<	*/
1705	<	public void testThenComposeAsync4() {
1706	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1707	<	CompletableFutureInc r = new CompletableFutureInc();
1708	<	CompletableFuture<Integer> g = f.thenComposeAsync(r);
1709	<	assertTrue(f.cancel(true));
1710	<	checkCompletedWithWrappedCancellationException(g);
1711	<	}
3654	>	public void testRejectingExecutorNeverInvoked() {
3655	>	for (Item v : new Item[] { one, null })
3656	>	{
3657	>	final CountingRejectingExecutor e = new CountingRejectingExecutor();
3658
3659	+	final CompletableFuture<Item> complete = CompletableFuture.completedFuture(v);
3660	+	final CompletableFuture<Item> incomplete = new CompletableFuture<>();
3661
3662	<	// async with explicit executors
3662	>	List<CompletableFuture<?>> fs = new ArrayList<>();
3663	>	fs.add(incomplete.thenRunAsync(() -> {}, e));
3664	>	fs.add(incomplete.thenAcceptAsync(z -> {}, e));
3665	>	fs.add(incomplete.thenApplyAsync(z -> z, e));
3666
3667	<	/**
3668	<	* thenRunAsync result completes normally after normal completion of source
3669	<	*/
1719	<	public void testThenRunAsyncE() {
1720	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1721	<	Noop r = new Noop();
1722	<	CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
1723	<	f.complete(null);
1724	<	checkCompletedNormally(g, null);
3667	>	fs.add(incomplete.thenCombineAsync(incomplete, (x, y) -> x, e));
3668	>	fs.add(incomplete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3669	>	fs.add(incomplete.runAfterBothAsync(incomplete, () -> {}, e));
3670
3671	<	// reordered version
3672	<	f = new CompletableFuture<Integer>();
3673	<	f.complete(null);
1729	<	r = new Noop();
1730	<	g = f.thenRunAsync(r, new ThreadExecutor());
1731	<	checkCompletedNormally(g, null);
1732	<	}
3671	>	fs.add(incomplete.applyToEitherAsync(incomplete, z -> z, e));
3672	>	fs.add(incomplete.acceptEitherAsync(incomplete, z -> {}, e));
3673	>	fs.add(incomplete.runAfterEitherAsync(incomplete, () -> {}, e));
3674
3675	<	/**
3676	<	* thenRunAsync result completes exceptionally after exceptional
3677	<	* completion of source
1737	<	*/
1738	<	public void testThenRunAsync2E() {
1739	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1740	<	Noop r = new Noop();
1741	<	CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
1742	<	f.completeExceptionally(new CFException());
1743	<	try {
1744	<	g.join();
1745	<	shouldThrow();
1746	<	} catch (Exception ok) {
1747	<	}
1748	<	checkCompletedWithWrappedCFException(g);
1749	<	}
3675	>	fs.add(incomplete.thenComposeAsync(z -> null, e));
3676	>	fs.add(incomplete.whenCompleteAsync((z, t) -> {}, e));
3677	>	fs.add(incomplete.handleAsync((z, t) -> null, e));
3678
3679	<	/**
3680	<	* thenRunAsync result completes exceptionally if action does
1753	<	*/
1754	<	public void testThenRunAsync3E() {
1755	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1756	<	FailingNoop r = new FailingNoop();
1757	<	CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
1758	<	f.complete(null);
1759	<	checkCompletedWithWrappedCFException(g);
1760	<	}
3679	>	fs.add(complete.thenCombineAsync(incomplete, (x, y) -> x, e));
3680	>	fs.add(incomplete.thenCombineAsync(complete, (x, y) -> x, e));
3681
3682	<	/**
3683	<	* thenRunAsync result completes exceptionally if source cancelled
1764	<	*/
1765	<	public void testThenRunAsync4E() {
1766	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1767	<	Noop r = new Noop();
1768	<	CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
1769	<	assertTrue(f.cancel(true));
1770	<	checkCompletedWithWrappedCancellationException(g);
1771	<	}
3682	>	fs.add(complete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3683	>	fs.add(incomplete.thenAcceptBothAsync(complete, (x, y) -> {}, e));
3684
3685	<	/**
3686	<	* thenApplyAsync result completes normally after normal completion of source
1775	<	*/
1776	<	public void testThenApplyAsyncE() {
1777	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1778	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc, new ThreadExecutor());
1779	<	f.complete(one);
1780	<	checkCompletedNormally(g, two);
1781	<	}
3685	>	fs.add(complete.runAfterBothAsync(incomplete, () -> {}, e));
3686	>	fs.add(incomplete.runAfterBothAsync(complete, () -> {}, e));
3687
3688	<	/**
3689	<	* thenApplyAsync result completes exceptionally after exceptional
1785	<	* completion of source
1786	<	*/
1787	<	public void testThenApplyAsync2E() {
1788	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1789	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc, new ThreadExecutor());
1790	<	f.completeExceptionally(new CFException());
1791	<	checkCompletedWithWrappedCFException(g);
1792	<	}
3688	>	for (CompletableFuture<?> future : fs)
3689	>	checkIncomplete(future);
3690
3691	<	/**
3692	<	* thenApplyAsync result completes exceptionally if action does
1796	<	*/
1797	<	public void testThenApplyAsync3E() {
1798	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1799	<	FailingFunction r = new FailingFunction();
1800	<	CompletableFuture<Integer> g = f.thenApplyAsync(r, new ThreadExecutor());
1801	<	f.complete(null);
1802	<	checkCompletedWithWrappedCFException(g);
1803	<	}
3691	>	for (CompletableFuture<?> future : fs)
3692	>	future.complete(null);
3693
3694	<	/**
1806	<	* thenApplyAsync result completes exceptionally if source cancelled
1807	<	*/
1808	<	public void testThenApplyAsync4E() {
1809	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1810	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc, new ThreadExecutor());
1811	<	assertTrue(f.cancel(true));
1812	<	checkCompletedWithWrappedCancellationException(g);
1813	<	}
3694	>	incomplete.complete(v);
3695
3696	<	/**
3697	<	* thenAcceptAsync result completes normally after normal
1817	<	* completion of source
1818	<	*/
1819	<	public void testThenAcceptAsyncE() {
1820	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1821	<	IncAction r = new IncAction();
1822	<	CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
1823	<	f.complete(one);
1824	<	checkCompletedNormally(g, null);
1825	<	assertEquals(r.value, 2);
1826	<	}
3696	>	for (CompletableFuture<?> future : fs)
3697	>	checkCompletedNormally(future, null);
3698
3699	<	/**
3700	<	* thenAcceptAsync result completes exceptionally after exceptional
1830	<	* completion of source
1831	<	*/
1832	<	public void testThenAcceptAsync2E() {
1833	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1834	<	IncAction r = new IncAction();
1835	<	CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
1836	<	f.completeExceptionally(new CFException());
1837	<	checkCompletedWithWrappedCFException(g);
1838	<	}
3699	>	mustEqual(0, e.count.get());
3700	>	}}
3701
3702		/**
3703	<	* thenAcceptAsync result completes exceptionally if action does
3703	>	* toCompletableFuture returns this CompletableFuture.
3704		*/
3705	<	public void testThenAcceptAsync3E() {
3706	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3707	<	FailingConsumer r = new FailingConsumer();
1846	<	CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
1847	<	f.complete(null);
1848	<	checkCompletedWithWrappedCFException(g);
3705	>	public void testToCompletableFuture() {
3706	>	CompletableFuture<Item> f = new CompletableFuture<>();
3707	>	assertSame(f, f.toCompletableFuture());
3708		}
3709
3710	<	/**
1852	<	* thenAcceptAsync result completes exceptionally if source cancelled
1853	<	*/
1854	<	public void testThenAcceptAsync4E() {
1855	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1856	<	IncAction r = new IncAction();
1857	<	CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
1858	<	assertTrue(f.cancel(true));
1859	<	checkCompletedWithWrappedCancellationException(g);
1860	<	}
1861	<	/**
1862	<	* thenCombineAsync result completes normally after normal
1863	<	* completion of sources
1864	<	*/
1865	<	public void testThenCombineAsyncE() {
1866	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1867	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1868	<	CompletableFuture<Integer> g = f.thenCombineAsync(f2, add, new ThreadExecutor());
1869	<	f.complete(one);
1870	<	checkIncomplete(g);
1871	<	f2.complete(two);
1872	<	checkCompletedNormally(g, three);
1873	<	}
1874	<
1875	<	/**
1876	<	* thenCombineAsync result completes exceptionally after exceptional
1877	<	* completion of source
1878	<	*/
1879	<	public void testThenCombineAsync2E() {
1880	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1881	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1882	<	CompletableFuture<Integer> g = f.thenCombineAsync(f2, add, new ThreadExecutor());
1883	<	f.completeExceptionally(new CFException());
1884	<	f2.complete(two);
1885	<	checkCompletedWithWrappedCFException(g);
1886	<
1887	<	f = new CompletableFuture<Integer>();
1888	<	f2 = new CompletableFuture<Integer>();
1889	<	g = f.thenCombineAsync(f2, add, new ThreadExecutor());
1890	<	f.complete(one);
1891	<	f2.completeExceptionally(new CFException());
1892	<	checkCompletedWithWrappedCFException(g);
1893	<	}
3710	>	// jdk9
3711
3712		/**
3713	<	* thenCombineAsync result completes exceptionally if action does
3713	>	* newIncompleteFuture returns an incomplete CompletableFuture
3714		*/
3715	<	public void testThenCombineAsync3E() {
3716	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3717	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3718	<	FailingBiFunction r = new FailingBiFunction();
3719	<	CompletableFuture<Integer> g = f.thenCombineAsync(f2, r, new ThreadExecutor());
3720	<	f.complete(one);
3715	>	public void testNewIncompleteFuture() {
3716	>	for (Item v1 : new Item[] { one, null })
3717	>	{
3718	>	CompletableFuture<Item> f = new CompletableFuture<>();
3719	>	CompletableFuture<Item> g = f.newIncompleteFuture();
3720	>	checkIncomplete(f);
3721		checkIncomplete(g);
3722	<	f2.complete(two);
3723	<	checkCompletedWithWrappedCFException(g);
1907	<	}
1908	<
1909	<	/**
1910	<	* thenCombineAsync result completes exceptionally if either source cancelled
1911	<	*/
1912	<	public void testThenCombineAsync4E() {
1913	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1914	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1915	<	CompletableFuture<Integer> g = f.thenCombineAsync(f2, add, new ThreadExecutor());
1916	<	assertTrue(f.cancel(true));
1917	<	f2.complete(two);
1918	<	checkCompletedWithWrappedCancellationException(g);
1919	<
1920	<	f = new CompletableFuture<Integer>();
1921	<	f2 = new CompletableFuture<Integer>();
1922	<	g = f.thenCombineAsync(f2, add, new ThreadExecutor());
1923	<	f.complete(one);
1924	<	assertTrue(f2.cancel(true));
1925	<	checkCompletedWithWrappedCancellationException(g);
1926	<	}
1927	<
1928	<	/**
1929	<	* thenAcceptBothAsync result completes normally after normal
1930	<	* completion of sources
1931	<	*/
1932	<	public void testThenAcceptBothAsyncE() {
1933	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1934	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1935	<	AddAction r = new AddAction();
1936	<	CompletableFuture<Void> g = f.thenAcceptBothAsync(f2, r, new ThreadExecutor());
1937	<	f.complete(one);
3722	>	f.complete(v1);
3723	>	checkCompletedNormally(f, v1);
3724		checkIncomplete(g);
3725	<	f2.complete(two);
3726	<	checkCompletedNormally(g, null);
3727	<	assertEquals(r.value, 3);
3728	<	}
3725	>	g.complete(v1);
3726	>	checkCompletedNormally(g, v1);
3727	>	assertSame(g.getClass(), CompletableFuture.class);
3728	>	}}
3729
3730		/**
3731	<	* thenAcceptBothAsync result completes exceptionally after exceptional
1946	<	* completion of source
3731	>	* completedStage returns a completed CompletionStage
3732		*/
3733	<	public void testThenAcceptBothAsync2E() {
3734	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3735	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3736	<	AddAction r = new AddAction();
3737	<	CompletableFuture<Void> g = f.thenAcceptBothAsync(f2, r, new ThreadExecutor());
3738	<	f.completeExceptionally(new CFException());
3739	<	f2.complete(two);
1955	<	checkCompletedWithWrappedCFException(g);
1956	<
1957	<	r = new AddAction();
1958	<	f = new CompletableFuture<Integer>();
1959	<	f2 = new CompletableFuture<Integer>();
1960	<	g = f.thenAcceptBothAsync(f2, r, new ThreadExecutor());
1961	<	f.complete(one);
1962	<	f2.completeExceptionally(new CFException());
1963	<	checkCompletedWithWrappedCFException(g);
3733	>	public void testCompletedStage() {
3734	>	AtomicInteger x = new AtomicInteger(0);
3735	>	AtomicReference<Throwable> r = new AtomicReference<>();
3736	>	CompletionStage<Item> f = CompletableFuture.completedStage(one);
3737	>	f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v.value);});
3738	>	mustEqual(x.get(), 1);
3739	>	assertNull(r.get());
3740		}
3741
3742		/**
3743	<	* thenAcceptBothAsync result completes exceptionally if action does
3743	>	* defaultExecutor by default returns the commonPool if
3744	>	* it supports more than one thread.
3745		*/
3746	<	public void testThenAcceptBothAsync3E() {
3747	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3748	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3749	<	FailingBiConsumer r = new FailingBiConsumer();
3750	<	CompletableFuture<Void> g = f.thenAcceptBothAsync(f2, r, new ThreadExecutor());
3751	<	f.complete(one);
3752	<	checkIncomplete(g);
3753	<	f2.complete(two);
1977	<	checkCompletedWithWrappedCFException(g);
3746	>	public void testDefaultExecutor() {
3747	>	CompletableFuture<Item> f = new CompletableFuture<>();
3748	>	Executor e = f.defaultExecutor();
3749	>	Executor c = ForkJoinPool.commonPool();
3750	>	if (ForkJoinPool.getCommonPoolParallelism() > 1)
3751	>	assertSame(e, c);
3752	>	else
3753	>	assertNotSame(e, c);
3754		}
3755
3756		/**
3757	<	* thenAcceptBothAsync result completes exceptionally if either source cancelled
3757	>	* failedFuture returns a CompletableFuture completed
3758	>	* exceptionally with the given Exception
3759		*/
3760	<	public void testThenAcceptBothAsync4E() {
3761	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3762	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3763	<	AddAction r = new AddAction();
1987	<	CompletableFuture<Void> g = f.thenAcceptBothAsync(f2, r, new ThreadExecutor());
1988	<	assertTrue(f.cancel(true));
1989	<	f2.complete(two);
1990	<	checkCompletedWithWrappedCancellationException(g);
1991	<
1992	<	r = new AddAction();
1993	<	f = new CompletableFuture<Integer>();
1994	<	f2 = new CompletableFuture<Integer>();
1995	<	g = f.thenAcceptBothAsync(f2, r, new ThreadExecutor());
1996	<	f.complete(one);
1997	<	assertTrue(f2.cancel(true));
1998	<	checkCompletedWithWrappedCancellationException(g);
3760	>	public void testFailedFuture() {
3761	>	CFException ex = new CFException();
3762	>	CompletableFuture<Item> f = CompletableFuture.failedFuture(ex);
3763	>	checkCompletedExceptionally(f, ex);
3764		}
3765
3766		/**
3767	<	* runAfterBothAsync result completes normally after normal
3768	<	* completion of sources
3767	>	* copy returns a CompletableFuture that is completed normally,
3768	>	* with the same value, when source is.
3769		*/
3770	<	public void testRunAfterBothAsyncE() {
3771	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3772	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3773	<	Noop r = new Noop();
3774	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
3775	<	f.complete(one);
3776	<	checkIncomplete(g);
3777	<	f2.complete(two);
3778	<	checkCompletedNormally(g, null);
3779	<	assertTrue(r.ran);
3780	<	}
3770	>	public void testCopy_normalCompletion() {
3771	>	for (boolean createIncomplete : new boolean[] { true, false })
3772	>	for (Item v1 : new Item[] { one, null })
3773	>	{
3774	>	CompletableFuture<Item> f = new CompletableFuture<>();
3775	>	if (!createIncomplete) assertTrue(f.complete(v1));
3776	>	CompletableFuture<Item> g = f.copy();
3777	>	if (createIncomplete) {
3778	>	checkIncomplete(f);
3779	>	checkIncomplete(g);
3780	>	assertTrue(f.complete(v1));
3781	>	}
3782	>	checkCompletedNormally(f, v1);
3783	>	checkCompletedNormally(g, v1);
3784	>	}}
3785	>
3786	>	/**
3787	>	* copy returns a CompletableFuture that is completed exceptionally
3788	>	* when source is.
3789	>	*/
3790	>	public void testCopy_exceptionalCompletion() {
3791	>	for (boolean createIncomplete : new boolean[] { true, false })
3792	>	{
3793	>	CFException ex = new CFException();
3794	>	CompletableFuture<Item> f = new CompletableFuture<>();
3795	>	if (!createIncomplete) f.completeExceptionally(ex);
3796	>	CompletableFuture<Item> g = f.copy();
3797	>	if (createIncomplete) {
3798	>	checkIncomplete(f);
3799	>	checkIncomplete(g);
3800	>	f.completeExceptionally(ex);
3801	>	}
3802	>	checkCompletedExceptionally(f, ex);
3803	>	checkCompletedWithWrappedException(g, ex);
3804	>	}}
3805
3806		/**
3807	<	* runAfterBothAsync result completes exceptionally after exceptional
3808	<	* completion of source
3809	<	*/
3810	<	public void testRunAfterBothAsync2E() {
3811	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3812	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3813	<	Noop r = new Noop();
3814	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
3815	<	f.completeExceptionally(new CFException());
3816	<	f2.complete(two);
2028	<	checkCompletedWithWrappedCFException(g);
2029	<
2030	<	r = new Noop();
2031	<	f = new CompletableFuture<Integer>();
2032	<	f2 = new CompletableFuture<Integer>();
2033	<	g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
2034	<	f.complete(one);
2035	<	f2.completeExceptionally(new CFException());
2036	<	checkCompletedWithWrappedCFException(g);
3807	>	* Completion of a copy does not complete its source.
3808	>	*/
3809	>	public void testCopy_oneWayPropagation() {
3810	>	CompletableFuture<Item> f = new CompletableFuture<>();
3811	>	assertTrue(f.copy().complete(one));
3812	>	assertTrue(f.copy().complete(null));
3813	>	assertTrue(f.copy().cancel(true));
3814	>	assertTrue(f.copy().cancel(false));
3815	>	assertTrue(f.copy().completeExceptionally(new CFException()));
3816	>	checkIncomplete(f);
3817		}
3818
3819		/**
3820	<	* runAfterBothAsync result completes exceptionally if action does
3820	>	* minimalCompletionStage returns a CompletableFuture that is
3821	>	* completed normally, with the same value, when source is.
3822		*/
3823	<	public void testRunAfterBothAsync3E() {
3824	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3825	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3826	<	FailingNoop r = new FailingNoop();
3827	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
3823	>	public void testMinimalCompletionStage() {
3824	>	CompletableFuture<Item> f = new CompletableFuture<>();
3825	>	CompletionStage<Item> g = f.minimalCompletionStage();
3826	>	AtomicInteger x = new AtomicInteger(0);
3827	>	AtomicReference<Throwable> r = new AtomicReference<>();
3828	>	checkIncomplete(f);
3829	>	g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v.value);});
3830		f.complete(one);
3831	<	checkIncomplete(g);
3832	<	f2.complete(two);
3833	<	checkCompletedWithWrappedCFException(g);
3831	>	checkCompletedNormally(f, one);
3832	>	mustEqual(x.get(), 1);
3833	>	assertNull(r.get());
3834		}
3835
3836		/**
3837	<	* runAfterBothAsync result completes exceptionally if either source cancelled
3837	>	* minimalCompletionStage returns a CompletableFuture that is
3838	>	* completed exceptionally when source is.
3839		*/
3840	<	public void testRunAfterBothAsync4E() {
3841	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3842	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3843	<	Noop r = new Noop();
3844	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
3845	<	assertTrue(f.cancel(true));
3846	<	f2.complete(two);
3847	<	checkCompletedWithWrappedCancellationException(g);
3848	<
3849	<	r = new Noop();
3850	<	f = new CompletableFuture<Integer>();
3851	<	f2 = new CompletableFuture<Integer>();
2068	<	g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
2069	<	f.complete(one);
2070	<	assertTrue(f2.cancel(true));
2071	<	checkCompletedWithWrappedCancellationException(g);
3840	>	public void testMinimalCompletionStage2() {
3841	>	CompletableFuture<Item> f = new CompletableFuture<>();
3842	>	CompletionStage<Item> g = f.minimalCompletionStage();
3843	>	AtomicInteger x = new AtomicInteger(0);
3844	>	AtomicReference<Throwable> r = new AtomicReference<>();
3845	>	g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v.value);});
3846	>	checkIncomplete(f);
3847	>	CFException ex = new CFException();
3848	>	f.completeExceptionally(ex);
3849	>	checkCompletedExceptionally(f, ex);
3850	>	mustEqual(x.get(), 0);
3851	>	mustEqual(r.get().getCause(), ex);
3852		}
3853
3854		/**
3855	<	* applyToEitherAsync result completes normally after normal
3856	<	* completion of sources
3855	>	* failedStage returns a CompletionStage completed
3856	>	* exceptionally with the given Exception
3857		*/
3858	<	public void testApplyToEitherAsyncE() {
3859	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3860	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3861	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
3862	<	f.complete(one);
3863	<	checkCompletedNormally(g, two);
3864	<
3865	<	f = new CompletableFuture<Integer>();
2086	<	f.complete(one);
2087	<	f2 = new CompletableFuture<Integer>();
2088	<	g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
2089	<	checkCompletedNormally(g, two);
3858	>	public void testFailedStage() {
3859	>	CFException ex = new CFException();
3860	>	CompletionStage<Item> f = CompletableFuture.failedStage(ex);
3861	>	AtomicInteger x = new AtomicInteger(0);
3862	>	AtomicReference<Throwable> r = new AtomicReference<>();
3863	>	f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v.value);});
3864	>	mustEqual(x.get(), 0);
3865	>	mustEqual(r.get(), ex);
3866		}
3867
3868		/**
3869	<	* applyToEitherAsync result completes exceptionally after exceptional
2094	<	* completion of source
3869	>	* completeAsync completes with value of given supplier
3870		*/
3871	<	public void testApplyToEitherAsync2E() {
3872	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3873	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3874	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
3875	<	f.completeExceptionally(new CFException());
3876	<	checkCompletedWithWrappedCFException(g);
3877	<
3878	<	f = new CompletableFuture<Integer>();
2104	<	f2 = new CompletableFuture<Integer>();
2105	<	f2.completeExceptionally(new CFException());
2106	<	g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
2107	<	f.complete(one);
2108	<	checkCompletedWithWrappedCFException(g);
2109	<	}
3871	>	public void testCompleteAsync() {
3872	>	for (Item v1 : new Item[] { one, null })
3873	>	{
3874	>	CompletableFuture<Item> f = new CompletableFuture<>();
3875	>	f.completeAsync(() -> v1);
3876	>	f.join();
3877	>	checkCompletedNormally(f, v1);
3878	>	}}
3879
3880		/**
3881	<	* applyToEitherAsync result completes exceptionally if action does
3881	>	* completeAsync completes exceptionally if given supplier throws
3882		*/
3883	<	public void testApplyToEitherAsync3E() {
3884	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3885	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3886	<	FailingFunction r = new FailingFunction();
3887	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, r, new ThreadExecutor());
3888	<	f.complete(one);
3889	<	checkCompletedWithWrappedCFException(g);
3883	>	public void testCompleteAsync2() {
3884	>	CompletableFuture<Item> f = new CompletableFuture<>();
3885	>	CFException ex = new CFException();
3886	>	f.completeAsync(() -> { throw ex; });
3887	>	try {
3888	>	f.join();
3889	>	shouldThrow();
3890	>	} catch (CompletionException success) {}
3891	>	checkCompletedWithWrappedException(f, ex);
3892		}
3893
3894		/**
3895	<	* applyToEitherAsync result completes exceptionally if either source cancelled
3895	>	* completeAsync with given executor completes with value of given supplier
3896		*/
3897	<	public void testApplyToEitherAsync4E() {
3898	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3899	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3900	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
3901	<	assertTrue(f.cancel(true));
3902	<	checkCompletedWithWrappedCancellationException(g);
3903	<
3904	<	f = new CompletableFuture<Integer>();
3905	<	f2 = new CompletableFuture<Integer>();
3906	<	assertTrue(f2.cancel(true));
2136	<	g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
2137	<	checkCompletedWithWrappedCancellationException(g);
2138	<	}
3897	>	public void testCompleteAsync3() {
3898	>	for (Item v1 : new Item[] { one, null })
3899	>	{
3900	>	CompletableFuture<Item> f = new CompletableFuture<>();
3901	>	ThreadExecutor executor = new ThreadExecutor();
3902	>	f.completeAsync(() -> v1, executor);
3903	>	assertSame(v1, f.join());
3904	>	checkCompletedNormally(f, v1);
3905	>	mustEqual(1, executor.count.get());
3906	>	}}
3907
3908		/**
3909	<	* acceptEitherAsync result completes normally after normal
3910	<	* completion of sources
3909	>	* completeAsync with given executor completes exceptionally if
3910	>	* given supplier throws
3911		*/
3912	<	public void testAcceptEitherAsyncE() {
3913	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3914	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3915	<	IncAction r = new IncAction();
3916	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
3917	<	f.complete(one);
3918	<	checkCompletedNormally(g, null);
3919	<	assertEquals(r.value, 2);
3920	<
3921	<	r = new IncAction();
3922	<	f = new CompletableFuture<Integer>();
3923	<	f.complete(one);
3924	<	f2 = new CompletableFuture<Integer>();
3925	<	g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
3926	<	checkCompletedNormally(g, null);
3927	<	assertEquals(r.value, 2);
3928	<	}
3912	>	public void testCompleteAsync4() {
3913	>	CompletableFuture<Item> f = new CompletableFuture<>();
3914	>	CFException ex = new CFException();
3915	>	ThreadExecutor executor = new ThreadExecutor();
3916	>	f.completeAsync(() -> { throw ex; }, executor);
3917	>	try {
3918	>	f.join();
3919	>	shouldThrow();
3920	>	} catch (CompletionException success) {}
3921	>	checkCompletedWithWrappedException(f, ex);
3922	>	mustEqual(1, executor.count.get());
3923	>	}
3924	>
3925	>	/**
3926	>	* orTimeout completes with TimeoutException if not complete
3927	>	*/
3928	>	public void testOrTimeout_timesOut() {
3929	>	long timeoutMillis = timeoutMillis();
3930	>	CompletableFuture<Item> f = new CompletableFuture<>();
3931	>	long startTime = System.nanoTime();
3932	>	assertSame(f, f.orTimeout(timeoutMillis, MILLISECONDS));
3933	>	checkCompletedWithTimeoutException(f);
3934	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3935	>	}
3936	>
3937	>	/**
3938	>	* orTimeout completes normally if completed before timeout
3939	>	*/
3940	>	public void testOrTimeout_completed() {
3941	>	for (Item v1 : new Item[] { one, null })
3942	>	{
3943	>	CompletableFuture<Item> f = new CompletableFuture<>();
3944	>	CompletableFuture<Item> g = new CompletableFuture<>();
3945	>	long startTime = System.nanoTime();
3946	>	f.complete(v1);
3947	>	assertSame(f, f.orTimeout(LONG_DELAY_MS, MILLISECONDS));
3948	>	assertSame(g, g.orTimeout(LONG_DELAY_MS, MILLISECONDS));
3949	>	g.complete(v1);
3950	>	checkCompletedNormally(f, v1);
3951	>	checkCompletedNormally(g, v1);
3952	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3953	>	}}
3954	>
3955	>	/**
3956	>	* completeOnTimeout completes with given value if not complete
3957	>	*/
3958	>	public void testCompleteOnTimeout_timesOut() {
3959	>	testInParallel(() -> testCompleteOnTimeout_timesOut(fortytwo),
3960	>	() -> testCompleteOnTimeout_timesOut(null));
3961	>	}
3962	>
3963	>	/**
3964	>	* completeOnTimeout completes with given value if not complete
3965	>	*/
3966	>	public void testCompleteOnTimeout_timesOut(Item v) {
3967	>	long timeoutMillis = timeoutMillis();
3968	>	CompletableFuture<Item> f = new CompletableFuture<>();
3969	>	long startTime = System.nanoTime();
3970	>	assertSame(f, f.completeOnTimeout(v, timeoutMillis, MILLISECONDS));
3971	>	assertSame(v, f.join());
3972	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3973	>	f.complete(ninetynine);         // should have no effect
3974	>	checkCompletedNormally(f, v);
3975	>	}
3976	>
3977	>	/**
3978	>	* completeOnTimeout has no effect if completed within timeout
3979	>	*/
3980	>	public void testCompleteOnTimeout_completed() {
3981	>	for (Item v1 : new Item[] { one, null })
3982	>	{
3983	>	CompletableFuture<Item> f = new CompletableFuture<>();
3984	>	CompletableFuture<Item> g = new CompletableFuture<>();
3985	>	long startTime = System.nanoTime();
3986	>	f.complete(v1);
3987	>	mustEqual(f, f.completeOnTimeout(minusOne, LONG_DELAY_MS, MILLISECONDS));
3988	>	mustEqual(g, g.completeOnTimeout(minusOne, LONG_DELAY_MS, MILLISECONDS));
3989	>	g.complete(v1);
3990	>	checkCompletedNormally(f, v1);
3991	>	checkCompletedNormally(g, v1);
3992	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3993	>	}}
3994	>
3995	>	/**
3996	>	* delayedExecutor returns an executor that delays submission
3997	>	*/
3998	>	public void testDelayedExecutor() {
3999	>	testInParallel(() -> testDelayedExecutor(null, null),
4000	>	() -> testDelayedExecutor(null, one),
4001	>	() -> testDelayedExecutor(new ThreadExecutor(), one),
4002	>	() -> testDelayedExecutor(new ThreadExecutor(), one));
4003	>	}
4004	>
4005	>	public void testDelayedExecutor(Executor executor, Item v) throws Exception {
4006	>	long timeoutMillis = timeoutMillis();
4007	>	// Use an "unreasonably long" long timeout to catch lingering threads
4008	>	long longTimeoutMillis = 1000 * 60 * 60 * 24;
4009	>	final Executor delayer, longDelayer;
4010	>	if (executor == null) {
4011	>	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS);
4012	>	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS);
4013	>	} else {
4014	>	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS, executor);
4015	>	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS, executor);
4016	>	}
4017	>	long startTime = System.nanoTime();
4018	>	CompletableFuture<Item> f =
4019	>	CompletableFuture.supplyAsync(() -> v, delayer);
4020	>	CompletableFuture<Item> g =
4021	>	CompletableFuture.supplyAsync(() -> v, longDelayer);
4022	>
4023	>	assertNull(g.getNow(null));
4024	>
4025	>	assertSame(v, f.get(LONG_DELAY_MS, MILLISECONDS));
4026	>	long millisElapsed = millisElapsedSince(startTime);
4027	>	assertTrue(millisElapsed >= timeoutMillis);
4028	>	assertTrue(millisElapsed < LONG_DELAY_MS / 2);
4029
4030	<	/**
2163	<	* acceptEitherAsync result completes exceptionally after exceptional
2164	<	* completion of source
2165	<	*/
2166	<	public void testAcceptEitherAsync2E() {
2167	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2168	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2169	<	IncAction r = new IncAction();
2170	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2171	<	f.completeExceptionally(new CFException());
2172	<	checkCompletedWithWrappedCFException(g);
4030	>	checkCompletedNormally(f, v);
4031
4032	<	r = new IncAction();
4033	<	f = new CompletableFuture<Integer>();
2176	<	f2 = new CompletableFuture<Integer>();
2177	<	f2.completeExceptionally(new CFException());
2178	<	g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2179	<	f.complete(one);
2180	<	checkCompletedWithWrappedCFException(g);
4032	>	checkIncomplete(g);
4033	>	assertTrue(g.cancel(true));
4034		}
4035
4036	<	/**
2184	<	* acceptEitherAsync result completes exceptionally if action does
2185	<	*/
2186	<	public void testAcceptEitherAsync3E() {
2187	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2188	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2189	<	FailingConsumer r = new FailingConsumer();
2190	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2191	<	f.complete(one);
2192	<	checkCompletedWithWrappedCFException(g);
2193	<	}
4036	>	//--- tests of implementation details; not part of official tck ---
4037
4038	<	/**
4039	<	* acceptEitherAsync result completes exceptionally if either
4040	<	* source cancelled
4041	<	*/
4042	<	public void testAcceptEitherAsync4E() {
4043	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
4044	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
4045	<	IncAction r = new IncAction();
4046	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2204	<	assertTrue(f.cancel(true));
2205	<	checkCompletedWithWrappedCancellationException(g);
4038	>	Object resultOf(CompletableFuture<?> f) {
4039	>	SecurityManager sm = System.getSecurityManager();
4040	>	if (sm != null) {
4041	>	try {
4042	>	System.setSecurityManager(null);
4043	>	} catch (SecurityException giveUp) {
4044	>	return "Reflection not available";
4045	>	}
4046	>	}
4047
4048	<	r = new IncAction();
4049	<	f = new CompletableFuture<Integer>();
4050	<	f2 = new CompletableFuture<Integer>();
4051	<	assertTrue(f2.cancel(true));
4052	<	g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
4053	<	checkCompletedWithWrappedCancellationException(g);
4048	>	try {
4049	>	java.lang.reflect.Field resultField
4050	>	= CompletableFuture.class.getDeclaredField("result");
4051	>	resultField.setAccessible(true);
4052	>	return resultField.get(f);
4053	>	} catch (Throwable t) {
4054	>	throw new AssertionError(t);
4055	>	} finally {
4056	>	if (sm != null) System.setSecurityManager(sm);
4057	>	}
4058		}
4059
4060	<	/**
4061	<	* runAfterEitherAsync result completes normally after normal
4062	<	* completion of sources
4063	<	*/
4064	<	public void testRunAfterEitherAsyncE() {
4065	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
4066	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
4067	<	Noop r = new Noop();
4068	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
4069	<	f.complete(one);
4070	<	checkCompletedNormally(g, null);
4071	<	assertTrue(r.ran);
4072	<
4073	<	r = new Noop();
4074	<	f = new CompletableFuture<Integer>();
4075	<	f.complete(one);
4076	<	f2 = new CompletableFuture<Integer>();
4077	<	g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
4078	<	checkCompletedNormally(g, null);
4079	<	assertTrue(r.ran);
4080	<	}
4060	>	public void testExceptionPropagationReusesResultObject() {
4061	>	if (!testImplementationDetails) return;
4062	>	for (ExecutionMode m : ExecutionMode.values())
4063	>	{
4064	>	final CFException ex = new CFException();
4065	>	final CompletableFuture<Item> v42 = CompletableFuture.completedFuture(fortytwo);
4066	>	final CompletableFuture<Item> incomplete = new CompletableFuture<>();
4067	>
4068	>	final Runnable noopRunnable = new Noop(m);
4069	>	final Consumer<Item> noopConsumer = new NoopConsumer(m);
4070	>	final Function<Item, Item> incFunction = new IncFunction(m);
4071	>
4072	>	List<Function<CompletableFuture<Item>, CompletableFuture<?>>> funs
4073	>	= new ArrayList<>();
4074	>
4075	>	funs.add(y -> m.thenRun(y, noopRunnable));
4076	>	funs.add(y -> m.thenAccept(y, noopConsumer));
4077	>	funs.add(y -> m.thenApply(y, incFunction));
4078	>
4079	>	funs.add(y -> m.runAfterEither(y, incomplete, noopRunnable));
4080	>	funs.add(y -> m.acceptEither(y, incomplete, noopConsumer));
4081	>	funs.add(y -> m.applyToEither(y, incomplete, incFunction));
4082	>
4083	>	funs.add(y -> m.runAfterBoth(y, v42, noopRunnable));
4084	>	funs.add(y -> m.runAfterBoth(v42, y, noopRunnable));
4085	>	funs.add(y -> m.thenAcceptBoth(y, v42, new SubtractAction(m)));
4086	>	funs.add(y -> m.thenAcceptBoth(v42, y, new SubtractAction(m)));
4087	>	funs.add(y -> m.thenCombine(y, v42, new SubtractFunction(m)));
4088	>	funs.add(y -> m.thenCombine(v42, y, new SubtractFunction(m)));
4089	>
4090	>	funs.add(y -> m.whenComplete(y, (Item r, Throwable t) -> {}));
4091	>
4092	>	funs.add(y -> m.thenCompose(y, new CompletableFutureInc(m)));
4093	>
4094	>	funs.add(y -> CompletableFuture.allOf(y));
4095	>	funs.add(y -> CompletableFuture.allOf(y, v42));
4096	>	funs.add(y -> CompletableFuture.allOf(v42, y));
4097	>	funs.add(y -> CompletableFuture.anyOf(y));
4098	>	funs.add(y -> CompletableFuture.anyOf(y, incomplete));
4099	>	funs.add(y -> CompletableFuture.anyOf(incomplete, y));
4100	>
4101	>	for (Function<CompletableFuture<Item>, CompletableFuture<?>>
4102	>	fun : funs) {
4103	>	CompletableFuture<Item> f = new CompletableFuture<>();
4104	>	f.completeExceptionally(ex);
4105	>	CompletableFuture<Item> src = m.thenApply(f, incFunction);
4106	>	checkCompletedWithWrappedException(src, ex);
4107	>	CompletableFuture<?> dep = fun.apply(src);
4108	>	checkCompletedWithWrappedException(dep, ex);
4109	>	assertSame(resultOf(src), resultOf(dep));
4110	>	}
4111
4112	<	/**
4113	<	* runAfterEitherAsync result completes exceptionally after exceptional
4114	<	* completion of source
4115	<	*/
4116	<	public void testRunAfterEitherAsync2E() {
4117	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
4118	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
4119	<	Noop r = new Noop();
4120	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
4121	<	f.completeExceptionally(new CFException());
2247	<	checkCompletedWithWrappedCFException(g);
4112	>	for (Function<CompletableFuture<Item>, CompletableFuture<?>>
4113	>	fun : funs) {
4114	>	CompletableFuture<Item> f = new CompletableFuture<>();
4115	>	CompletableFuture<Item> src = m.thenApply(f, incFunction);
4116	>	CompletableFuture<?> dep = fun.apply(src);
4117	>	f.completeExceptionally(ex);
4118	>	checkCompletedWithWrappedException(src, ex);
4119	>	checkCompletedWithWrappedException(dep, ex);
4120	>	assertSame(resultOf(src), resultOf(dep));
4121	>	}
4122
4123	<	r = new Noop();
4124	<	f = new CompletableFuture<Integer>();
4125	<	f2 = new CompletableFuture<Integer>();
4126	<	f2.completeExceptionally(new CFException());
4127	<	g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
4128	<	f.complete(one);
4129	<	checkCompletedWithWrappedCFException(g);
4130	<	}
4123	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
4124	>	for (Function<CompletableFuture<Item>, CompletableFuture<?>>
4125	>	fun : funs) {
4126	>	CompletableFuture<Item> f = new CompletableFuture<>();
4127	>	f.cancel(mayInterruptIfRunning);
4128	>	checkCancelled(f);
4129	>	CompletableFuture<Item> src = m.thenApply(f, incFunction);
4130	>	checkCompletedWithWrappedCancellationException(src);
4131	>	CompletableFuture<?> dep = fun.apply(src);
4132	>	checkCompletedWithWrappedCancellationException(dep);
4133	>	assertSame(resultOf(src), resultOf(dep));
4134	>	}
4135
4136	<	/**
4137	<	* runAfterEitherAsync result completes exceptionally if action does
4138	<	*/
4139	<	public void testRunAfterEitherAsync3E() {
4140	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
4141	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
4142	<	FailingNoop r = new FailingNoop();
4143	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
4144	<	f.complete(one);
4145	<	checkCompletedWithWrappedCFException(g);
4146	<	}
4136	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
4137	>	for (Function<CompletableFuture<Item>, CompletableFuture<?>>
4138	>	fun : funs) {
4139	>	CompletableFuture<Item> f = new CompletableFuture<>();
4140	>	CompletableFuture<Item> src = m.thenApply(f, incFunction);
4141	>	CompletableFuture<?> dep = fun.apply(src);
4142	>	f.cancel(mayInterruptIfRunning);
4143	>	checkCancelled(f);
4144	>	checkCompletedWithWrappedCancellationException(src);
4145	>	checkCompletedWithWrappedCancellationException(dep);
4146	>	assertSame(resultOf(src), resultOf(dep));
4147	>	}
4148	>	}}
4149
4150		/**
4151	<	* runAfterEitherAsync result completes exceptionally if either
2272	<	* source cancelled
4151	>	* Minimal completion stages throw UOE for most non-CompletionStage methods
4152		*/
4153	<	public void testRunAfterEitherAsync4E() {
4154	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
4155	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
4156	<	Noop r = new Noop();
4157	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
4158	<	assertTrue(f.cancel(true));
4159	<	checkCompletedWithWrappedCancellationException(g);
4160	<
4161	<	r = new Noop();
4162	<	f = new CompletableFuture<Integer>();
4163	<	f2 = new CompletableFuture<Integer>();
4164	<	assertTrue(f2.cancel(true));
4165	<	g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
4166	<	checkCompletedWithWrappedCancellationException(g);
4153	>	public void testMinimalCompletionStage_minimality() {
4154	>	if (!testImplementationDetails) return;
4155	>	Function<Method, String> toSignature =
4156	>	method -> method.getName() + Arrays.toString(method.getParameterTypes());
4157	>	Predicate<Method> isNotStatic =
4158	>	method -> (method.getModifiers() & Modifier.STATIC) == 0;
4159	>	List<Method> minimalMethods =
4160	>	Stream.of(Object.class, CompletionStage.class)
4161	>	.flatMap(klazz -> Stream.of(klazz.getMethods()))
4162	>	.filter(isNotStatic)
4163	>	.collect(Collectors.toList());
4164	>	// Methods from CompletableFuture permitted NOT to throw UOE
4165	>	String[] signatureWhitelist = {
4166	>	"newIncompleteFuture[]",
4167	>	"defaultExecutor[]",
4168	>	"minimalCompletionStage[]",
4169	>	"copy[]",
4170	>	};
4171	>	Set<String> permittedMethodSignatures =
4172	>	Stream.concat(minimalMethods.stream().map(toSignature),
4173	>	Stream.of(signatureWhitelist))
4174	>	.collect(Collectors.toSet());
4175	>	List<Method> allMethods = Stream.of(CompletableFuture.class.getMethods())
4176	>	.filter(isNotStatic)
4177	>	.filter(method -> !permittedMethodSignatures.contains(toSignature.apply(method)))
4178	>	.collect(Collectors.toList());
4179	>
4180	>	List<CompletionStage<Item>> stages = new ArrayList<>();
4181	>	CompletionStage<Item> min =
4182	>	new CompletableFuture<Item>().minimalCompletionStage();
4183	>	stages.add(min);
4184	>	stages.add(min.thenApply(x -> x));
4185	>	stages.add(CompletableFuture.completedStage(one));
4186	>	stages.add(CompletableFuture.failedStage(new CFException()));
4187	>
4188	>	List<Method> bugs = new ArrayList<>();
4189	>	for (Method method : allMethods) {
4190	>	Class<?>[] parameterTypes = method.getParameterTypes();
4191	>	Object[] args = new Object[parameterTypes.length];
4192	>	// Manufacture boxed primitives for primitive params
4193	>	for (int i = 0; i < args.length; i++) {
4194	>	Class<?> type = parameterTypes[i];
4195	>	if      (type == boolean.class) args[i] = false;
4196	>	else if (type == int.class)     args[i] = 0;
4197	>	else if (type == long.class)    args[i] = 0L;
4198	>	}
4199	>	for (CompletionStage<Item> stage : stages) {
4200	>	try {
4201	>	method.invoke(stage, args);
4202	>	bugs.add(method);
4203	>	}
4204	>	catch (java.lang.reflect.InvocationTargetException expected) {
4205	>	if (! (expected.getCause() instanceof UnsupportedOperationException)) {
4206	>	bugs.add(method);
4207	>	// expected.getCause().printStackTrace();
4208	>	}
4209	>	}
4210	>	catch (ReflectiveOperationException bad) { throw new Error(bad); }
4211	>	}
4212	>	}
4213	>	if (!bugs.isEmpty())
4214	>	throw new Error("Methods did not throw UOE: " + bugs);
4215		}
4216
4217		/**
4218	<	* thenComposeAsync result completes normally after normal
4219	<	* completion of source
4218	>	* minimalStage.toCompletableFuture() returns a CompletableFuture that
4219	>	* is completed normally, with the same value, when source is.
4220		*/
4221	<	public void testThenComposeAsyncE() {
4222	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
4223	<	CompletableFutureInc r = new CompletableFutureInc();
4224	<	CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
4225	<	f.complete(one);
4226	<	checkCompletedNormally(g, two);
4227	<	}
4221	>	public void testMinimalCompletionStage_toCompletableFuture_normalCompletion() {
4222	>	for (boolean createIncomplete : new boolean[] { true, false })
4223	>	for (Item v1 : new Item[] { one, null })
4224	>	{
4225	>	CompletableFuture<Item> f = new CompletableFuture<>();
4226	>	CompletionStage<Item> minimal = f.minimalCompletionStage();
4227	>	if (!createIncomplete) assertTrue(f.complete(v1));
4228	>	CompletableFuture<Item> g = minimal.toCompletableFuture();
4229	>	if (createIncomplete) {
4230	>	checkIncomplete(f);
4231	>	checkIncomplete(g);
4232	>	assertTrue(f.complete(v1));
4233	>	}
4234	>	checkCompletedNormally(f, v1);
4235	>	checkCompletedNormally(g, v1);
4236	>	}}
4237	>
4238	>	/**
4239	>	* minimalStage.toCompletableFuture() returns a CompletableFuture that
4240	>	* is completed exceptionally when source is.
4241	>	*/
4242	>	public void testMinimalCompletionStage_toCompletableFuture_exceptionalCompletion() {
4243	>	for (boolean createIncomplete : new boolean[] { true, false })
4244	>	{
4245	>	CFException ex = new CFException();
4246	>	CompletableFuture<Item> f = new CompletableFuture<>();
4247	>	CompletionStage<Item> minimal = f.minimalCompletionStage();
4248	>	if (!createIncomplete) f.completeExceptionally(ex);
4249	>	CompletableFuture<Item> g = minimal.toCompletableFuture();
4250	>	if (createIncomplete) {
4251	>	checkIncomplete(f);
4252	>	checkIncomplete(g);
4253	>	f.completeExceptionally(ex);
4254	>	}
4255	>	checkCompletedExceptionally(f, ex);
4256	>	checkCompletedWithWrappedException(g, ex);
4257	>	}}
4258
4259		/**
4260	<	* thenComposeAsync result completes exceptionally after
4261	<	* exceptional completion of source
4262	<	*/
4263	<	public void testThenComposeAsync2E() {
4264	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
4265	<	CompletableFutureInc r = new CompletableFutureInc();
4266	<	CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
4267	<	f.completeExceptionally(new CFException());
4268	<	checkCompletedWithWrappedCFException(g);
4269	<	}
4260	>	* minimalStage.toCompletableFuture() gives mutable CompletableFuture
4261	>	*/
4262	>	public void testMinimalCompletionStage_toCompletableFuture_mutable() {
4263	>	for (Item v1 : new Item[] { one, null })
4264	>	{
4265	>	CompletableFuture<Item> f = new CompletableFuture<>();
4266	>	CompletionStage<Item> minimal = f.minimalCompletionStage();
4267	>	CompletableFuture<Item> g = minimal.toCompletableFuture();
4268	>	assertTrue(g.complete(v1));
4269	>	checkCompletedNormally(g, v1);
4270	>	checkIncomplete(f);
4271	>	checkIncomplete(minimal.toCompletableFuture());
4272	>	}}
4273
4274		/**
4275	<	* thenComposeAsync result completes exceptionally if action does
4275	>	* minimalStage.toCompletableFuture().join() awaits completion
4276		*/
4277	<	public void testThenComposeAsync3E() {
4278	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
4279	<	FailingCompletableFutureFunction r = new FailingCompletableFutureFunction();
4280	<	CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
4281	<	f.complete(one);
4282	<	checkCompletedWithWrappedCFException(g);
4283	<	}
4277	>	public void testMinimalCompletionStage_toCompletableFuture_join() throws Exception {
4278	>	for (boolean createIncomplete : new boolean[] { true, false })
4279	>	for (Item v1 : new Item[] { one, null })
4280	>	{
4281	>	CompletableFuture<Item> f = new CompletableFuture<>();
4282	>	if (!createIncomplete) assertTrue(f.complete(v1));
4283	>	CompletionStage<Item> minimal = f.minimalCompletionStage();
4284	>	if (createIncomplete) assertTrue(f.complete(v1));
4285	>	mustEqual(v1, minimal.toCompletableFuture().join());
4286	>	mustEqual(v1, minimal.toCompletableFuture().get());
4287	>	checkCompletedNormally(minimal.toCompletableFuture(), v1);
4288	>	}}
4289	>
4290	>	/**
4291	>	* Completion of a toCompletableFuture copy of a minimal stage
4292	>	* does not complete its source.
4293	>	*/
4294	>	public void testMinimalCompletionStage_toCompletableFuture_oneWayPropagation() {
4295	>	CompletableFuture<Item> f = new CompletableFuture<>();
4296	>	CompletionStage<Item> g = f.minimalCompletionStage();
4297	>	assertTrue(g.toCompletableFuture().complete(one));
4298	>	assertTrue(g.toCompletableFuture().complete(null));
4299	>	assertTrue(g.toCompletableFuture().cancel(true));
4300	>	assertTrue(g.toCompletableFuture().cancel(false));
4301	>	assertTrue(g.toCompletableFuture().completeExceptionally(new CFException()));
4302	>	checkIncomplete(g.toCompletableFuture());
4303	>	f.complete(one);
4304	>	checkCompletedNormally(g.toCompletableFuture(), one);
4305	>	}
4306	>
4307	>	/** Demo utility method for external reliable toCompletableFuture */
4308	>	static <T> CompletableFuture<T> toCompletableFuture(CompletionStage<T> stage) {
4309	>	CompletableFuture<T> f = new CompletableFuture<>();
4310	>	stage.handle((T t, Throwable ex) -> {
4311	>	if (ex != null) f.completeExceptionally(ex);
4312	>	else f.complete(t);
4313	>	return null;
4314	>	});
4315	>	return f;
4316	>	}
4317	>
4318	>	/** Demo utility method to join a CompletionStage */
4319	>	static <T> T join(CompletionStage<T> stage) {
4320	>	return toCompletableFuture(stage).join();
4321	>	}
4322	>
4323	>	/**
4324	>	* Joining a minimal stage "by hand" works
4325	>	*/
4326	>	public void testMinimalCompletionStage_join_by_hand() {
4327	>	for (boolean createIncomplete : new boolean[] { true, false })
4328	>	for (Item v1 : new Item[] { one, null })
4329	>	{
4330	>	CompletableFuture<Item> f = new CompletableFuture<>();
4331	>	CompletionStage<Item> minimal = f.minimalCompletionStage();
4332	>	CompletableFuture<Item> g = new CompletableFuture<>();
4333	>	if (!createIncomplete) assertTrue(f.complete(v1));
4334	>	minimal.thenAccept(x -> g.complete(x));
4335	>	if (createIncomplete) assertTrue(f.complete(v1));
4336	>	g.join();
4337	>	checkCompletedNormally(g, v1);
4338	>	checkCompletedNormally(f, v1);
4339	>	mustEqual(v1, join(minimal));
4340	>	}}
4341	>
4342	>	static class Monad {
4343	>	static class ZeroException extends RuntimeException {
4344	>	public ZeroException() { super("monadic zero"); }
4345	>	}
4346	>	// "return", "unit"
4347	>	static <T> CompletableFuture<T> unit(T value) {
4348	>	return completedFuture(value);
4349	>	}
4350	>	// monadic zero ?
4351	>	static <T> CompletableFuture<T> zero() {
4352	>	return failedFuture(new ZeroException());
4353	>	}
4354	>	// >=>
4355	>	static <T,U,V> Function<T, CompletableFuture<V>> compose
4356	>	(Function<T, CompletableFuture<U>> f,
4357	>	Function<U, CompletableFuture<V>> g) {
4358	>	return x -> f.apply(x).thenCompose(g);
4359	>	}
4360
4361	<	/**
4362	<	* thenComposeAsync result completes exceptionally if source cancelled
4363	<	*/
4364	<	public void testThenComposeAsync4E() {
4365	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
4366	<	CompletableFutureInc r = new CompletableFutureInc();
4367	<	CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
4368	<	assertTrue(f.cancel(true));
2333	<	checkCompletedWithWrappedCancellationException(g);
2334	<	}
4361	>	static void assertZero(CompletableFuture<?> f) {
4362	>	try {
4363	>	f.getNow(null);
4364	>	throw new AssertionError("should throw");
4365	>	} catch (CompletionException success) {
4366	>	assertTrue(success.getCause() instanceof ZeroException);
4367	>	}
4368	>	}
4369
4370	<	// other static methods
4370	>	static <T> void assertFutureEquals(CompletableFuture<T> f,
4371	>	CompletableFuture<T> g) {
4372	>	T fval = null, gval = null;
4373	>	Throwable fex = null, gex = null;
4374	>
4375	>	try { fval = f.get(); }
4376	>	catch (ExecutionException ex) { fex = ex.getCause(); }
4377	>	catch (Throwable ex) { fex = ex; }
4378	>
4379	>	try { gval = g.get(); }
4380	>	catch (ExecutionException ex) { gex = ex.getCause(); }
4381	>	catch (Throwable ex) { gex = ex; }
4382	>
4383	>	if (fex != null || gex != null)
4384	>	assertSame(fex.getClass(), gex.getClass());
4385	>	else
4386	>	mustEqual(fval, gval);
4387	>	}
4388
4389	<	/**
4390	<	* allOf(no component futures) returns a future completed normally
4391	<	* with the value null
2341	<	*/
2342	<	public void testAllOf_empty() throws Exception {
2343	<	CompletableFuture<?> f = CompletableFuture.allOf();
2344	<	checkCompletedNormally(f, null);
2345	<	}
4389	>	static class PlusFuture<T> extends CompletableFuture<T> {
4390	>	AtomicReference<Throwable> firstFailure = new AtomicReference<>(null);
4391	>	}
4392
4393	<	/**
4394	<	* allOf returns a future completed when all components complete
4395	<	*/
4396	<	public void testAllOf() throws Exception {
4397	<	for (int k = 1; k < 20; ++k) {
4398	<	CompletableFuture[] fs = new CompletableFuture[k];
4399	<	for (int i = 0; i < k; ++i)
4400	<	fs[i] = new CompletableFuture<Integer>();
4401	<	CompletableFuture<Void> f = CompletableFuture.allOf(fs);
4402	<	for (int i = 0; i < k; ++i) {
4403	<	checkIncomplete(f);
4404	<	fs[i].complete(one);
4405	<	}
4406	<	checkCompletedNormally(f, null);
4393	>	/** Implements "monadic plus". */
4394	>	static <T> CompletableFuture<T> plus(CompletableFuture<? extends T> f,
4395	>	CompletableFuture<? extends T> g) {
4396	>	PlusFuture<T> plus = new PlusFuture<T>();
4397	>	BiConsumer<T, Throwable> action = (T result, Throwable ex) -> {
4398	>	try {
4399	>	if (ex == null) {
4400	>	if (plus.complete(result))
4401	>	if (plus.firstFailure.get() != null)
4402	>	plus.firstFailure.set(null);
4403	>	}
4404	>	else if (plus.firstFailure.compareAndSet(null, ex)) {
4405	>	if (plus.isDone())
4406	>	plus.firstFailure.set(null);
4407	>	}
4408	>	else {
4409	>	// first failure has precedence
4410	>	Throwable first = plus.firstFailure.getAndSet(null);
4411	>
4412	>	// may fail with "Self-suppression not permitted"
4413	>	try { first.addSuppressed(ex); }
4414	>	catch (Exception ignored) {}
4415	>
4416	>	plus.completeExceptionally(first);
4417	>	}
4418	>	} catch (Throwable unexpected) {
4419	>	plus.completeExceptionally(unexpected);
4420	>	}
4421	>	};
4422	>	f.whenComplete(action);
4423	>	g.whenComplete(action);
4424	>	return plus;
4425		}
4426		}
4427
4428		/**
4429	<	* anyOf(no component futures) returns an incomplete future
4429	>	* CompletableFuture is an additive monad - sort of.
4430	>	* https://en.wikipedia.org/wiki/Monad_(functional_programming)#Additive_monads
4431		*/
4432	<	public void testAnyOf_empty() throws Exception {
4433	<	CompletableFuture<?> f = CompletableFuture.anyOf();
4434	<	checkIncomplete(f);
4435	<	}
4432	>	public void testAdditiveMonad() throws Throwable {
4433	>	Function<Long, CompletableFuture<Long>> unit = Monad::unit;
4434	>	CompletableFuture<Long> zero = Monad.zero();
4435	>
4436	>	// Some mutually non-commutative functions
4437	>	Function<Long, CompletableFuture<Long>> triple
4438	>	= x -> Monad.unit(3 * x);
4439	>	Function<Long, CompletableFuture<Long>> inc
4440	>	= x -> Monad.unit(x + 1);
4441	>
4442	>	// unit is a right identity: m >>= unit === m
4443	>	Monad.assertFutureEquals(inc.apply(5L).thenCompose(unit),
4444	>	inc.apply(5L));
4445	>	// unit is a left identity: (unit x) >>= f === f x
4446	>	Monad.assertFutureEquals(unit.apply(5L).thenCompose(inc),
4447	>	inc.apply(5L));
4448	>
4449	>	// associativity: (m >>= f) >>= g === m >>= ( \x -> (f x >>= g) )
4450	>	Monad.assertFutureEquals(
4451	>	unit.apply(5L).thenCompose(inc).thenCompose(triple),
4452	>	unit.apply(5L).thenCompose(x -> inc.apply(x).thenCompose(triple)));
4453	>
4454	>	// The case for CompletableFuture as an additive monad is weaker...
4455	>
4456	>	// zero is a monadic zero
4457	>	Monad.assertZero(zero);
4458	>
4459	>	// left zero: zero >>= f === zero
4460	>	Monad.assertZero(zero.thenCompose(inc));
4461	>	// right zero: f >>= (\x -> zero) === zero
4462	>	Monad.assertZero(inc.apply(5L).thenCompose(x -> zero));
4463	>
4464	>	// f plus zero === f
4465	>	Monad.assertFutureEquals(Monad.unit(5L),
4466	>	Monad.plus(Monad.unit(5L), zero));
4467	>	// zero plus f === f
4468	>	Monad.assertFutureEquals(Monad.unit(5L),
4469	>	Monad.plus(zero, Monad.unit(5L)));
4470	>	// zero plus zero === zero
4471	>	Monad.assertZero(Monad.plus(zero, zero));
4472	>	{
4473	>	CompletableFuture<Long> f = Monad.plus(Monad.unit(5L),
4474	>	Monad.unit(8L));
4475	>	// non-determinism
4476	>	assertTrue(f.get() == 5L || f.get() == 8L);
4477	>	}
4478
4479	<	/**
4480	<	* allOf returns a future completed when any components complete
4481	<	*/
4482	<	public void testAnyOf() throws Exception {
4483	<	for (int k = 1; k < 20; ++k) {
4484	<	CompletableFuture[] fs = new CompletableFuture[k];
4485	<	for (int i = 0; i < k; ++i)
4486	<	fs[i] = new CompletableFuture<Integer>();
4487	<	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
4488	<	checkIncomplete(f);
4489	<	for (int i = 0; i < k; ++i) {
4490	<	fs[i].complete(one);
4491	<	checkCompletedNormally(f, one);
4492	<	}
4479	>	CompletableFuture<Long> godot = new CompletableFuture<>();
4480	>	// f plus godot === f (doesn't wait for godot)
4481	>	Monad.assertFutureEquals(Monad.unit(5L),
4482	>	Monad.plus(Monad.unit(5L), godot));
4483	>	// godot plus f === f (doesn't wait for godot)
4484	>	Monad.assertFutureEquals(Monad.unit(5L),
4485	>	Monad.plus(godot, Monad.unit(5L)));
4486	>	}
4487	>
4488	>	/** Test long recursive chains of CompletableFutures with cascading completions */
4489	>	@SuppressWarnings("FutureReturnValueIgnored")
4490	>	public void testRecursiveChains() throws Throwable {
4491	>	for (ExecutionMode m : ExecutionMode.values())
4492	>	for (boolean addDeadEnds : new boolean[] { true, false })
4493	>	{
4494	>	final int val = 42;
4495	>	final int n = expensiveTests ? 1_000 : 2;
4496	>	CompletableFuture<Item> head = new CompletableFuture<>();
4497	>	CompletableFuture<Item> tail = head;
4498	>	for (int i = 0; i < n; i++) {
4499	>	if (addDeadEnds) m.thenApply(tail, v -> new Item(v.value + 1));
4500	>	tail = m.thenApply(tail, v -> new Item(v.value + 1));
4501	>	if (addDeadEnds) m.applyToEither(tail, tail, v -> new Item(v.value + 1));
4502	>	tail = m.applyToEither(tail, tail, v -> new Item(v.value + 1));
4503	>	if (addDeadEnds) m.thenCombine(tail, tail, (v, w) -> new Item(v.value + 1));
4504	>	tail = m.thenCombine(tail, tail, (v, w) -> new Item(v.value + 1));
4505	>	}
4506	>	head.complete(itemFor(val));
4507	>	mustEqual(val + 3 * n, tail.join());
4508	>	}}
4509	>
4510	>	/**
4511	>	* A single CompletableFuture with many dependents.
4512	>	* A demo of scalability - runtime is O(n).
4513	>	*/
4514	>	@SuppressWarnings("FutureReturnValueIgnored")
4515	>	public void testManyDependents() throws Throwable {
4516	>	final int n = expensiveTests ? 1_000_000 : 10;
4517	>	final CompletableFuture<Void> head = new CompletableFuture<>();
4518	>	final CompletableFuture<Void> complete = CompletableFuture.completedFuture((Void)null);
4519	>	final AtomicInteger count = new AtomicInteger(0);
4520	>	for (int i = 0; i < n; i++) {
4521	>	head.thenRun(() -> count.getAndIncrement());
4522	>	head.thenAccept(x -> count.getAndIncrement());
4523	>	head.thenApply(x -> count.getAndIncrement());
4524	>
4525	>	head.runAfterBoth(complete, () -> count.getAndIncrement());
4526	>	head.thenAcceptBoth(complete, (x, y) -> count.getAndIncrement());
4527	>	head.thenCombine(complete, (x, y) -> count.getAndIncrement());
4528	>	complete.runAfterBoth(head, () -> count.getAndIncrement());
4529	>	complete.thenAcceptBoth(head, (x, y) -> count.getAndIncrement());
4530	>	complete.thenCombine(head, (x, y) -> count.getAndIncrement());
4531	>
4532	>	head.runAfterEither(new CompletableFuture<Void>(), () -> count.getAndIncrement());
4533	>	head.acceptEither(new CompletableFuture<Void>(), x -> count.getAndIncrement());
4534	>	head.applyToEither(new CompletableFuture<Void>(), x -> count.getAndIncrement());
4535	>	new CompletableFuture<Void>().runAfterEither(head, () -> count.getAndIncrement());
4536	>	new CompletableFuture<Void>().acceptEither(head, x -> count.getAndIncrement());
4537	>	new CompletableFuture<Void>().applyToEither(head, x -> count.getAndIncrement());
4538		}
4539	+	head.complete(null);
4540	+	mustEqual(5 * 3 * n, count.get());
4541		}
4542
4543	<	/**
4544	<	* Completion methods throw NullPointerException with null arguments
4545	<	*/
4546	<	public void testNPE() {
4547	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
4548	<	CompletableFuture<Integer> g = new CompletableFuture<Integer>();
4549	<	CompletableFuture h;
4550	<	try { h = f.thenApply(null); } catch (NullPointerException ok) {}
4551	<	try { h = f.thenAccept(null); } catch (NullPointerException ok) {}
4552	<	try { h = f.thenRun(null); } catch (NullPointerException ok) {}
4553	<	try { h = f.thenCombine(g, null); } catch (NullPointerException ok) {}
4554	<	try { h = f.thenCombine(null, null); } catch (NullPointerException ok) {}
4555	<	try { h = f.applyToEither(g, null); } catch (NullPointerException ok) {}
4556	<	try { h = f.applyToEither(null, null); } catch (NullPointerException ok) {}
4557	<	try { h = f.thenAcceptBoth(g, null); } catch (NullPointerException ok) {}
4558	<	try { h = f.thenAcceptBoth(null, null); } catch (NullPointerException ok) {}
4559	<	try { h = f.runAfterEither(g, null); } catch (NullPointerException ok) {}
4560	<	try { h = f.runAfterEither(null, null); } catch (NullPointerException ok) {}
4561	<	try { h = f.runAfterBoth(g, null); } catch (NullPointerException ok) {}
4562	<	try { h = f.runAfterBoth(null, null); } catch (NullPointerException ok) {}
4563	<	try { h = f.exceptionally(null); } catch (NullPointerException ok) {}
4564	<	try { h = f.handle(null); } catch (NullPointerException ok) {}
4565	<	try { h = f.thenCompose(null); } catch (NullPointerException ok) {}
2412	<
2413	<	try { h = f.thenApplyAsync(null); } catch (NullPointerException ok) {}
2414	<	try { h = f.thenAcceptAsync(null); } catch (NullPointerException ok) {}
2415	<	try { h = f.thenRunAsync(null); } catch (NullPointerException ok) {}
2416	<	try { h = f.thenCombineAsync(g, null); } catch (NullPointerException ok) {}
2417	<	try { h = f.thenCombineAsync(null, null); } catch (NullPointerException ok) {}
2418	<	try { h = f.applyToEitherAsync(g, null); } catch (NullPointerException ok) {}
2419	<	try { h = f.applyToEitherAsync(null, null); } catch (NullPointerException ok) {}
2420	<	try { h = f.thenAcceptBothAsync(g, null); } catch (NullPointerException ok) {}
2421	<	try { h = f.thenAcceptBothAsync(null, null); } catch (NullPointerException ok) {}
2422	<	try { h = f.runAfterEitherAsync(g, null); } catch (NullPointerException ok) {}
2423	<	try { h = f.runAfterEitherAsync(null, null); } catch (NullPointerException ok) {}
2424	<	try { h = f.runAfterBothAsync(g, null); } catch (NullPointerException ok) {}
2425	<	try { h = f.runAfterBothAsync(null, null); } catch (NullPointerException ok) {}
4543	>	/** ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest tck */
4544	>	@SuppressWarnings("FutureReturnValueIgnored")
4545	>	public void testCoCompletionGarbageRetention() throws Throwable {
4546	>	final int n = expensiveTests ? 1_000_000 : 10;
4547	>	final CompletableFuture<Item> incomplete = new CompletableFuture<>();
4548	>	CompletableFuture<Item> f;
4549	>	for (int i = 0; i < n; i++) {
4550	>	f = new CompletableFuture<>();
4551	>	f.runAfterEither(incomplete, () -> {});
4552	>	f.complete(null);
4553	>
4554	>	f = new CompletableFuture<>();
4555	>	f.acceptEither(incomplete, x -> {});
4556	>	f.complete(null);
4557	>
4558	>	f = new CompletableFuture<>();
4559	>	f.applyToEither(incomplete, x -> x);
4560	>	f.complete(null);
4561	>
4562	>	f = new CompletableFuture<>();
4563	>	CompletableFuture.anyOf(f, incomplete);
4564	>	f.complete(null);
4565	>	}
4566
4567	+	for (int i = 0; i < n; i++) {
4568	+	f = new CompletableFuture<>();
4569	+	incomplete.runAfterEither(f, () -> {});
4570	+	f.complete(null);
4571	+
4572	+	f = new CompletableFuture<>();
4573	+	incomplete.acceptEither(f, x -> {});
4574	+	f.complete(null);
4575	+
4576	+	f = new CompletableFuture<>();
4577	+	incomplete.applyToEither(f, x -> x);
4578	+	f.complete(null);
4579	+
4580	+	f = new CompletableFuture<>();
4581	+	CompletableFuture.anyOf(incomplete, f);
4582	+	f.complete(null);
4583	+	}
4584		}
4585
4586	+	/**
4587	+	* Reproduction recipe for:
4588	+	* 8160402: Garbage retention with CompletableFuture.anyOf
4589	+	* 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
4590	+	*/
4591	+	public void testAnyOfGarbageRetention() throws Throwable {
4592	+	for (Item v : new Item[] { one, null })
4593	+	{
4594	+	final int n = expensiveTests ? 100_000 : 10;
4595	+	@SuppressWarnings("unchecked")
4596	+	CompletableFuture<Item>[] fs =
4597	+	(CompletableFuture<Item>[])new CompletableFuture[100];
4598	+	for (int i = 0; i < fs.length; i++)
4599	+	fs[i] = new CompletableFuture<>();
4600	+	fs[fs.length - 1].complete(v);
4601	+	for (int i = 0; i < n; i++)
4602	+	checkCompletedNormally(CompletableFuture.anyOf(fs), v);
4603	+	}}
4604	+
4605	+	/**
4606	+	* Checks for garbage retention with allOf.
4607	+	*
4608	+	* As of 2016-07, fails with OOME:
4609	+	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledAllOfGarbageRetention tck
4610	+	*/
4611	+	public void testCancelledAllOfGarbageRetention() throws Throwable {
4612	+	final int n = expensiveTests ? 100_000 : 10;
4613	+	@SuppressWarnings("unchecked")
4614	+	CompletableFuture<Item>[] fs
4615	+	= (CompletableFuture<Item>[]) new CompletableFuture<?>[100];
4616	+	for (int i = 0; i < fs.length; i++)
4617	+	fs[i] = new CompletableFuture<>();
4618	+	for (int i = 0; i < n; i++)
4619	+	assertTrue(CompletableFuture.allOf(fs).cancel(false));
4620	+	}
4621	+
4622	+	/**
4623	+	* Checks for garbage retention when a dependent future is
4624	+	* cancelled and garbage-collected.
4625	+	* 8161600: Garbage retention when source CompletableFutures are never completed
4626	+	*
4627	+	* As of 2016-07, fails with OOME:
4628	+	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledGarbageRetention tck
4629	+	*/
4630	+	public void testCancelledGarbageRetention() throws Throwable {
4631	+	final int n = expensiveTests ? 100_000 : 10;
4632	+	CompletableFuture<Item> neverCompleted = new CompletableFuture<>();
4633	+	for (int i = 0; i < n; i++)
4634	+	assertTrue(neverCompleted.thenRun(() -> {}).cancel(true));
4635	+	}
4636	+
4637	+	/**
4638	+	* Checks for garbage retention when MinimalStage.toCompletableFuture()
4639	+	* is invoked many times.
4640	+	* 8161600: Garbage retention when source CompletableFutures are never completed
4641	+	*
4642	+	* As of 2016-07, fails with OOME:
4643	+	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testToCompletableFutureGarbageRetention tck
4644	+	*/
4645	+	public void testToCompletableFutureGarbageRetention() throws Throwable {
4646	+	final int n = expensiveTests ? 900_000 : 10;
4647	+	CompletableFuture<Item> neverCompleted = new CompletableFuture<>();
4648	+	CompletionStage<Item> minimal = neverCompleted.minimalCompletionStage();
4649	+	for (int i = 0; i < n; i++)
4650	+	assertTrue(minimal.toCompletableFuture().cancel(true));
4651	+	}
4652	+
4653	+	//     static <U> U join(CompletionStage<U> stage) {
4654	+	//         CompletableFuture<U> f = new CompletableFuture<>();
4655	+	//         stage.whenComplete((v, ex) -> {
4656	+	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
4657	+	//         });
4658	+	//         return f.join();
4659	+	//     }
4660	+
4661	+	//     static <U> boolean isDone(CompletionStage<U> stage) {
4662	+	//         CompletableFuture<U> f = new CompletableFuture<>();
4663	+	//         stage.whenComplete((v, ex) -> {
4664	+	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
4665	+	//         });
4666	+	//         return f.isDone();
4667	+	//     }
4668	+
4669	+	//     static <U> U join2(CompletionStage<U> stage) {
4670	+	//         return stage.toCompletableFuture().copy().join();
4671	+	//     }
4672	+
4673	+	//     static <U> boolean isDone2(CompletionStage<U> stage) {
4674	+	//         return stage.toCompletableFuture().copy().isDone();
4675	+	//     }
4676	+
4677	+	// For testing default implementations
4678	+	// Only non-default interface methods defined.
4679	+	static final class DelegatedCompletionStage<T> implements CompletionStage<T> {
4680	+	final CompletableFuture<T> cf;
4681	+	DelegatedCompletionStage(CompletableFuture<T> cf) { this.cf = cf; }
4682	+	public CompletableFuture<T> toCompletableFuture() {
4683	+	return cf; }
4684	+	public CompletionStage<Void> thenRun
4685	+	(Runnable action) {
4686	+	return cf.thenRun(action); }
4687	+	public CompletionStage<Void> thenRunAsync
4688	+	(Runnable action) {
4689	+	return cf.thenRunAsync(action); }
4690	+	public CompletionStage<Void> thenRunAsync
4691	+	(Runnable action,
4692	+	Executor executor) {
4693	+	return cf.thenRunAsync(action, executor); }
4694	+	public CompletionStage<Void> thenAccept
4695	+	(Consumer<? super T> action) {
4696	+	return cf.thenAccept(action); }
4697	+	public CompletionStage<Void> thenAcceptAsync
4698	+	(Consumer<? super T> action) {
4699	+	return cf.thenAcceptAsync(action); }
4700	+	public CompletionStage<Void> thenAcceptAsync
4701	+	(Consumer<? super T> action,
4702	+	Executor executor) {
4703	+	return cf.thenAcceptAsync(action, executor); }
4704	+	public <U> CompletionStage<U> thenApply
4705	+	(Function<? super T,? extends U> a) {
4706	+	return cf.thenApply(a); }
4707	+	public <U> CompletionStage<U> thenApplyAsync
4708	+	(Function<? super T,? extends U> fn) {
4709	+	return cf.thenApplyAsync(fn); }
4710	+	public <U> CompletionStage<U> thenApplyAsync
4711	+	(Function<? super T,? extends U> fn,
4712	+	Executor executor) {
4713	+	return cf.thenApplyAsync(fn, executor); }
4714	+	public <U,V> CompletionStage<V> thenCombine
4715	+	(CompletionStage<? extends U> other,
4716	+	BiFunction<? super T,? super U,? extends V> fn) {
4717	+	return cf.thenCombine(other, fn); }
4718	+	public <U,V> CompletionStage<V> thenCombineAsync
4719	+	(CompletionStage<? extends U> other,
4720	+	BiFunction<? super T,? super U,? extends V> fn) {
4721	+	return cf.thenCombineAsync(other, fn); }
4722	+	public <U,V> CompletionStage<V> thenCombineAsync
4723	+	(CompletionStage<? extends U> other,
4724	+	BiFunction<? super T,? super U,? extends V> fn,
4725	+	Executor executor) {
4726	+	return cf.thenCombineAsync(other, fn, executor); }
4727	+	public <U> CompletionStage<Void> thenAcceptBoth
4728	+	(CompletionStage<? extends U> other,
4729	+	BiConsumer<? super T, ? super U> action) {
4730	+	return cf.thenAcceptBoth(other, action); }
4731	+	public <U> CompletionStage<Void> thenAcceptBothAsync
4732	+	(CompletionStage<? extends U> other,
4733	+	BiConsumer<? super T, ? super U> action) {
4734	+	return cf.thenAcceptBothAsync(other, action); }
4735	+	public <U> CompletionStage<Void> thenAcceptBothAsync
4736	+	(CompletionStage<? extends U> other,
4737	+	BiConsumer<? super T, ? super U> action,
4738	+	Executor executor) {
4739	+	return cf.thenAcceptBothAsync(other, action, executor); }
4740	+	public CompletionStage<Void> runAfterBoth
4741	+	(CompletionStage<?> other,
4742	+	Runnable action) {
4743	+	return cf.runAfterBoth(other, action); }
4744	+	public CompletionStage<Void> runAfterBothAsync
4745	+	(CompletionStage<?> other,
4746	+	Runnable action) {
4747	+	return cf.runAfterBothAsync(other, action); }
4748	+	public CompletionStage<Void> runAfterBothAsync
4749	+	(CompletionStage<?> other,
4750	+	Runnable action,
4751	+	Executor executor) {
4752	+	return cf.runAfterBothAsync(other, action, executor); }
4753	+	public <U> CompletionStage<U> applyToEither
4754	+	(CompletionStage<? extends T> other,
4755	+	Function<? super T, U> fn) {
4756	+	return cf.applyToEither(other, fn); }
4757	+	public <U> CompletionStage<U> applyToEitherAsync
4758	+	(CompletionStage<? extends T> other,
4759	+	Function<? super T, U> fn) {
4760	+	return cf.applyToEitherAsync(other, fn); }
4761	+	public <U> CompletionStage<U> applyToEitherAsync
4762	+	(CompletionStage<? extends T> other,
4763	+	Function<? super T, U> fn,
4764	+	Executor executor) {
4765	+	return cf.applyToEitherAsync(other, fn, executor); }
4766	+	public CompletionStage<Void> acceptEither
4767	+	(CompletionStage<? extends T> other,
4768	+	Consumer<? super T> action) {
4769	+	return cf.acceptEither(other, action); }
4770	+	public CompletionStage<Void> acceptEitherAsync
4771	+	(CompletionStage<? extends T> other,
4772	+	Consumer<? super T> action) {
4773	+	return cf.acceptEitherAsync(other, action); }
4774	+	public CompletionStage<Void> acceptEitherAsync
4775	+	(CompletionStage<? extends T> other,
4776	+	Consumer<? super T> action,
4777	+	Executor executor) {
4778	+	return cf.acceptEitherAsync(other, action, executor); }
4779	+	public CompletionStage<Void> runAfterEither
4780	+	(CompletionStage<?> other,
4781	+	Runnable action) {
4782	+	return cf.runAfterEither(other, action); }
4783	+	public CompletionStage<Void> runAfterEitherAsync
4784	+	(CompletionStage<?> other,
4785	+	Runnable action) {
4786	+	return cf.runAfterEitherAsync(other, action); }
4787	+	public CompletionStage<Void> runAfterEitherAsync
4788	+	(CompletionStage<?> other,
4789	+	Runnable action,
4790	+	Executor executor) {
4791	+	return cf.runAfterEitherAsync(other, action, executor); }
4792	+	public <U> CompletionStage<U> thenCompose
4793	+	(Function<? super T, ? extends CompletionStage<U>> fn) {
4794	+	return cf.thenCompose(fn); }
4795	+	public <U> CompletionStage<U> thenComposeAsync
4796	+	(Function<? super T, ? extends CompletionStage<U>> fn) {
4797	+	return cf.thenComposeAsync(fn); }
4798	+	public <U> CompletionStage<U> thenComposeAsync
4799	+	(Function<? super T, ? extends CompletionStage<U>> fn,
4800	+	Executor executor) {
4801	+	return cf.thenComposeAsync(fn, executor); }
4802	+	public <U> CompletionStage<U> handle
4803	+	(BiFunction<? super T, Throwable, ? extends U> fn) {
4804	+	return cf.handle(fn); }
4805	+	public <U> CompletionStage<U> handleAsync
4806	+	(BiFunction<? super T, Throwable, ? extends U> fn) {
4807	+	return cf.handleAsync(fn); }
4808	+	public <U> CompletionStage<U> handleAsync
4809	+	(BiFunction<? super T, Throwable, ? extends U> fn,
4810	+	Executor executor) {
4811	+	return cf.handleAsync(fn, executor); }
4812	+	public CompletionStage<T> whenComplete
4813	+	(BiConsumer<? super T, ? super Throwable> action) {
4814	+	return cf.whenComplete(action); }
4815	+	public CompletionStage<T> whenCompleteAsync
4816	+	(BiConsumer<? super T, ? super Throwable> action) {
4817	+	return cf.whenCompleteAsync(action); }
4818	+	public CompletionStage<T> whenCompleteAsync
4819	+	(BiConsumer<? super T, ? super Throwable> action,
4820	+	Executor executor) {
4821	+	return cf.whenCompleteAsync(action, executor); }
4822	+	public CompletionStage<T> exceptionally
4823	+	(Function<Throwable, ? extends T> fn) {
4824	+	return cf.exceptionally(fn); }
4825	+	}
4826	+
4827	+	/**
4828	+	* default-implemented exceptionallyAsync action is not invoked when
4829	+	* source completes normally, and source result is propagated
4830	+	*/
4831	+	public void testDefaultExceptionallyAsync_normalCompletion() {
4832	+	for (boolean createIncomplete : new boolean[] { true, false })
4833	+	for (Item v1 : new Item[] { one, null })
4834	+	{
4835	+	final AtomicInteger ran = new AtomicInteger(0);
4836	+	final CompletableFuture<Item> f = new CompletableFuture<>();
4837	+	final DelegatedCompletionStage<Item> d =
4838	+	new DelegatedCompletionStage<Item>(f);
4839	+	if (!createIncomplete) assertTrue(f.complete(v1));
4840	+	final CompletionStage<Item> g = d.exceptionallyAsync
4841	+	((Throwable t) -> {
4842	+	ran.getAndIncrement();
4843	+	throw new AssertionError("should not be called");
4844	+	});
4845	+	if (createIncomplete) assertTrue(f.complete(v1));
4846	+
4847	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4848	+	checkCompletedNormally(f, v1);
4849	+	mustEqual(0, ran.get());
4850	+	}}
4851	+
4852	+	/**
4853	+	* default-implemented exceptionallyAsync action completes with
4854	+	* function value on source exception
4855	+	*/
4856	+	public void testDefaultExceptionallyAsync_exceptionalCompletion() {
4857	+	for (boolean createIncomplete : new boolean[] { true, false })
4858	+	for (Item v1 : new Item[] { one, null })
4859	+	{
4860	+	final AtomicInteger ran = new AtomicInteger(0);
4861	+	final CFException ex = new CFException();
4862	+	final CompletableFuture<Item> f = new CompletableFuture<>();
4863	+	final DelegatedCompletionStage<Item> d =
4864	+	new DelegatedCompletionStage<Item>(f);
4865	+	if (!createIncomplete) f.completeExceptionally(ex);
4866	+	final CompletionStage<Item> g = d.exceptionallyAsync
4867	+	((Throwable t) -> {
4868	+	assertSame(t, ex);
4869	+	ran.getAndIncrement();
4870	+	return v1;
4871	+	});
4872	+	if (createIncomplete) f.completeExceptionally(ex);
4873	+
4874	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4875	+	checkCompletedExceptionally(f, ex);
4876	+	mustEqual(1, ran.get());
4877	+	}}
4878	+
4879	+	/**
4880	+	* Under default implementation, if an "exceptionally action"
4881	+	* throws an exception, it completes exceptionally with that
4882	+	* exception
4883	+	*/
4884	+	public void testDefaultExceptionallyAsync_exceptionalCompletionActionFailed() {
4885	+	for (boolean createIncomplete : new boolean[] { true, false })
4886	+	{
4887	+	final AtomicInteger ran = new AtomicInteger(0);
4888	+	final CFException ex1 = new CFException();
4889	+	final CFException ex2 = new CFException();
4890	+	final CompletableFuture<Item> f = new CompletableFuture<>();
4891	+	final DelegatedCompletionStage<Item> d =
4892	+	new DelegatedCompletionStage<Item>(f);
4893	+	if (!createIncomplete) f.completeExceptionally(ex1);
4894	+	final CompletionStage<Item> g = d.exceptionallyAsync
4895	+	((Throwable t) -> {
4896	+	assertSame(t, ex1);
4897	+	ran.getAndIncrement();
4898	+	throw ex2;
4899	+	});
4900	+	if (createIncomplete) f.completeExceptionally(ex1);
4901	+
4902	+	checkCompletedWithWrappedException(g.toCompletableFuture(), ex2);
4903	+	checkCompletedExceptionally(f, ex1);
4904	+	checkCompletedExceptionally(d.toCompletableFuture(), ex1);
4905	+	mustEqual(1, ran.get());
4906	+	}}
4907	+
4908	+	/**
4909	+	* default-implemented exceptionallyCompose result completes
4910	+	* normally after normal completion of source
4911	+	*/
4912	+	public void testDefaultExceptionallyCompose_normalCompletion() {
4913	+	for (boolean createIncomplete : new boolean[] { true, false })
4914	+	for (Item v1 : new Item[] { one, null })
4915	+	{
4916	+	final CompletableFuture<Item> f = new CompletableFuture<>();
4917	+	final ExceptionalCompletableFutureFunction r =
4918	+	new ExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4919	+	final DelegatedCompletionStage<Item> d =
4920	+	new DelegatedCompletionStage<Item>(f);
4921	+	if (!createIncomplete) assertTrue(f.complete(v1));
4922	+	final CompletionStage<Item> g = d.exceptionallyCompose(r);
4923	+	if (createIncomplete) assertTrue(f.complete(v1));
4924	+
4925	+	checkCompletedNormally(f, v1);
4926	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4927	+	r.assertNotInvoked();
4928	+	}}
4929	+
4930	+	/**
4931	+	* default-implemented exceptionallyCompose result completes
4932	+	* normally after exceptional completion of source
4933	+	*/
4934	+	public void testDefaultExceptionallyCompose_exceptionalCompletion() {
4935	+	for (boolean createIncomplete : new boolean[] { true, false })
4936	+	{
4937	+	final CFException ex = new CFException();
4938	+	final ExceptionalCompletableFutureFunction r =
4939	+	new ExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4940	+	final CompletableFuture<Item> f = new CompletableFuture<>();
4941	+	final DelegatedCompletionStage<Item> d =
4942	+	new DelegatedCompletionStage<Item>(f);
4943	+	if (!createIncomplete) f.completeExceptionally(ex);
4944	+	final CompletionStage<Item> g = d.exceptionallyCompose(r);
4945	+	if (createIncomplete) f.completeExceptionally(ex);
4946	+
4947	+	checkCompletedExceptionally(f, ex);
4948	+	checkCompletedNormally(g.toCompletableFuture(), r.value);
4949	+	r.assertInvoked();
4950	+	}}
4951	+
4952	+	/**
4953	+	* default-implemented exceptionallyCompose completes
4954	+	* exceptionally on exception if action does
4955	+	*/
4956	+	public void testDefaultExceptionallyCompose_actionFailed() {
4957	+	for (boolean createIncomplete : new boolean[] { true, false })
4958	+	{
4959	+	final CFException ex = new CFException();
4960	+	final CompletableFuture<Item> f = new CompletableFuture<>();
4961	+	final FailingExceptionalCompletableFutureFunction r
4962	+	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4963	+	final DelegatedCompletionStage<Item> d =
4964	+	new DelegatedCompletionStage<Item>(f);
4965	+	if (!createIncomplete) f.completeExceptionally(ex);
4966	+	final CompletionStage<Item> g = d.exceptionallyCompose(r);
4967	+	if (createIncomplete) f.completeExceptionally(ex);
4968	+
4969	+	checkCompletedExceptionally(f, ex);
4970	+	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
4971	+	r.assertInvoked();
4972	+	}}
4973	+
4974	+	/**
4975	+	* default-implemented exceptionallyComposeAsync result completes
4976	+	* normally after normal completion of source
4977	+	*/
4978	+	public void testDefaultExceptionallyComposeAsync_normalCompletion() {
4979	+	for (boolean createIncomplete : new boolean[] { true, false })
4980	+	for (Item v1 : new Item[] { one, null })
4981	+	{
4982	+	final CompletableFuture<Item> f = new CompletableFuture<>();
4983	+	final ExceptionalCompletableFutureFunction r =
4984	+	new ExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
4985	+	final DelegatedCompletionStage<Item> d =
4986	+	new DelegatedCompletionStage<Item>(f);
4987	+	if (!createIncomplete) assertTrue(f.complete(v1));
4988	+	final CompletionStage<Item> g = d.exceptionallyComposeAsync(r);
4989	+	if (createIncomplete) assertTrue(f.complete(v1));
4990	+
4991	+	checkCompletedNormally(f, v1);
4992	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4993	+	r.assertNotInvoked();
4994	+	}}
4995	+
4996	+	/**
4997	+	* default-implemented exceptionallyComposeAsync result completes
4998	+	* normally after exceptional completion of source
4999	+	*/
5000	+	public void testDefaultExceptionallyComposeAsync_exceptionalCompletion() {
5001	+	for (boolean createIncomplete : new boolean[] { true, false })
5002	+	{
5003	+	final CFException ex = new CFException();
5004	+	final ExceptionalCompletableFutureFunction r =
5005	+	new ExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
5006	+	final CompletableFuture<Item> f = new CompletableFuture<>();
5007	+	final DelegatedCompletionStage<Item> d =
5008	+	new DelegatedCompletionStage<Item>(f);
5009	+	if (!createIncomplete) f.completeExceptionally(ex);
5010	+	final CompletionStage<Item> g = d.exceptionallyComposeAsync(r);
5011	+	if (createIncomplete) f.completeExceptionally(ex);
5012	+
5013	+	checkCompletedExceptionally(f, ex);
5014	+	checkCompletedNormally(g.toCompletableFuture(), r.value);
5015	+	r.assertInvoked();
5016	+	}}
5017	+
5018	+	/**
5019	+	* default-implemented exceptionallyComposeAsync completes
5020	+	* exceptionally on exception if action does
5021	+	*/
5022	+	public void testDefaultExceptionallyComposeAsync_actionFailed() {
5023	+	for (boolean createIncomplete : new boolean[] { true, false })
5024	+	{
5025	+	final CFException ex = new CFException();
5026	+	final CompletableFuture<Item> f = new CompletableFuture<>();
5027	+	final FailingExceptionalCompletableFutureFunction r
5028	+	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
5029	+	final DelegatedCompletionStage<Item> d =
5030	+	new DelegatedCompletionStage<Item>(f);
5031	+	if (!createIncomplete) f.completeExceptionally(ex);
5032	+	final CompletionStage<Item> g = d.exceptionallyComposeAsync(r);
5033	+	if (createIncomplete) f.completeExceptionally(ex);
5034	+
5035	+	checkCompletedExceptionally(f, ex);
5036	+	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
5037	+	r.assertInvoked();
5038	+	}}
5039	+
5040	+	/**
5041	+	* default-implemented exceptionallyComposeAsync result completes
5042	+	* normally after normal completion of source
5043	+	*/
5044	+	public void testDefaultExceptionallyComposeAsyncExecutor_normalCompletion() {
5045	+	for (boolean createIncomplete : new boolean[] { true, false })
5046	+	for (Item v1 : new Item[] { one, null })
5047	+	{
5048	+	final CompletableFuture<Item> f = new CompletableFuture<>();
5049	+	final ExceptionalCompletableFutureFunction r =
5050	+	new ExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
5051	+	final DelegatedCompletionStage<Item> d =
5052	+	new DelegatedCompletionStage<Item>(f);
5053	+	if (!createIncomplete) assertTrue(f.complete(v1));
5054	+	final CompletionStage<Item> g = d.exceptionallyComposeAsync(r, new ThreadExecutor());
5055	+	if (createIncomplete) assertTrue(f.complete(v1));
5056	+
5057	+	checkCompletedNormally(f, v1);
5058	+	checkCompletedNormally(g.toCompletableFuture(), v1);
5059	+	r.assertNotInvoked();
5060	+	}}
5061	+
5062	+	/**
5063	+	* default-implemented exceptionallyComposeAsync result completes
5064	+	* normally after exceptional completion of source
5065	+	*/
5066	+	public void testDefaultExceptionallyComposeAsyncExecutor_exceptionalCompletion() {
5067	+	for (boolean createIncomplete : new boolean[] { true, false })
5068	+	{
5069	+	final CFException ex = new CFException();
5070	+	final ExceptionalCompletableFutureFunction r =
5071	+	new ExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
5072	+	final CompletableFuture<Item> f = new CompletableFuture<>();
5073	+	final DelegatedCompletionStage<Item> d =
5074	+	new DelegatedCompletionStage<Item>(f);
5075	+	if (!createIncomplete) f.completeExceptionally(ex);
5076	+	final CompletionStage<Item> g = d.exceptionallyComposeAsync(r, new ThreadExecutor());
5077	+	if (createIncomplete) f.completeExceptionally(ex);
5078	+
5079	+	checkCompletedExceptionally(f, ex);
5080	+	checkCompletedNormally(g.toCompletableFuture(), r.value);
5081	+	r.assertInvoked();
5082	+	}}
5083	+
5084	+	/**
5085	+	* default-implemented exceptionallyComposeAsync completes
5086	+	* exceptionally on exception if action does
5087	+	*/
5088	+	public void testDefaultExceptionallyComposeAsyncExecutor_actionFailed() {
5089	+	for (boolean createIncomplete : new boolean[] { true, false })
5090	+	{
5091	+	final CFException ex = new CFException();
5092	+	final CompletableFuture<Item> f = new CompletableFuture<>();
5093	+	final FailingExceptionalCompletableFutureFunction r
5094	+	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
5095	+	final DelegatedCompletionStage<Item> d =
5096	+	new DelegatedCompletionStage<Item>(f);
5097	+	if (!createIncomplete) f.completeExceptionally(ex);
5098	+	final CompletionStage<Item> g = d.exceptionallyComposeAsync(r, new ThreadExecutor());
5099	+	if (createIncomplete) f.completeExceptionally(ex);
5100	+
5101	+	checkCompletedExceptionally(f, ex);
5102	+	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
5103	+	r.assertInvoked();
5104	+	}}
5105
5106		}

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