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

Comparing jsr166/src/test/tck/CompletableFutureTest.java (file contents):
Revision 1.57 by jsr166, Mon Jun 2 22:48:50 2014 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;
25	<	import static java.util.concurrent.TimeUnit.SECONDS;
26	<	import java.util.*;
27	<	import java.util.function.Supplier;
28	<	import java.util.function.Consumer;
36	>	import java.util.concurrent.atomic.AtomicReference;
37		import java.util.function.BiConsumer;
30	–	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 44 | Line 58 | public class CompletableFutureTest exten
58		void checkIncomplete(CompletableFuture<?> f) {
59		assertFalse(f.isDone());
60		assertFalse(f.isCancelled());
61	<	assertTrue(f.toString().contains("[Not completed]"));
61	>	assertTrue(f.toString().matches(".*\\[.*Not completed.*\\]"));
62	>
63	>	Object result = null;
64		try {
65	<	assertNull(f.getNow(null));
65	>	result = f.getNow(null);
66		} catch (Throwable fail) { threadUnexpectedException(fail); }
67	+	assertNull(result);
68	+
69		try {
70	<	f.get(0L, SECONDS);
70	>	f.get(randomExpiredTimeout(), randomTimeUnit());
71		shouldThrow();
72		}
73		catch (TimeoutException success) {}
74		catch (Throwable fail) { threadUnexpectedException(fail); }
75		}
76
77	<	<T> void checkCompletedNormally(CompletableFuture<T> f, T value) {
78	<	try {
79	<	assertEquals(value, f.get(LONG_DELAY_MS, MILLISECONDS));
80	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
81	<	try {
82	<	assertEquals(value, f.join());
83	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
66	<	try {
67	<	assertEquals(value, f.getNow(null));
68	<	} 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());
85	>	result = f.get();
86		} catch (Throwable fail) { threadUnexpectedException(fail); }
87	+	mustEqual(expectedValue, result);
88	+
89		assertTrue(f.isDone());
90		assertFalse(f.isCancelled());
91		assertFalse(f.isCompletedExceptionally());
92	<	assertTrue(f.toString().contains("[Completed normally]"));
92	>	assertTrue(f.toString().matches(".*\\[.*Completed normally.*\\]"));
93		}
94
95	<	void checkCompletedWithWrappedCFException(CompletableFuture<?> f) {
96	<	try {
97	<	f.get(LONG_DELAY_MS, MILLISECONDS);
98	<	shouldThrow();
99	<	} catch (ExecutionException success) {
100	<	assertTrue(success.getCause() instanceof CFException);
101	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
102	<	try {
86	<	f.join();
87	<	shouldThrow();
88	<	} catch (CompletionException success) {
89	<	assertTrue(success.getCause() instanceof CFException);
90	<	}
91	<	try {
92	<	f.getNow(null);
93	<	shouldThrow();
94	<	} catch (CompletionException success) {
95	<	assertTrue(success.getCause() instanceof CFException);
96	<	}
97	<	try {
98	<	f.get();
99	<	shouldThrow();
100	<	} catch (ExecutionException success) {
101	<	assertTrue(success.getCause() instanceof CFException);
102	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
103	<	assertTrue(f.isDone());
104	<	assertFalse(f.isCancelled());
105	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
95	>	/**
96	>	* Returns the "raw" internal exceptional completion of f,
97	>	* without any additional wrapping with CompletionException.
98	>	*/
99	>	Throwable exceptionalCompletion(CompletableFuture<?> f) {
100	>	// handle (and whenComplete and exceptionally) can distinguish
101	>	// between "direct" and "wrapped" exceptional completion
102	>	return f.handle((u, t) -> t).join();
103		}
104
105	<	void checkCompletedWithWrappedCFException(CompletableFuture<?> f,
106	<	CFException ex) {
105	>	void checkCompletedExceptionally(CompletableFuture<?> f,
106	>	boolean wrapped,
107	>	Consumer<Throwable> checker) {
108	>	Throwable cause = exceptionalCompletion(f);
109	>	if (wrapped) {
110	>	assertTrue(cause instanceof CompletionException);
111	>	cause = cause.getCause();
112	>	}
113	>	checker.accept(cause);
114	>
115	>	long startTime = System.nanoTime();
116		try {
117		f.get(LONG_DELAY_MS, MILLISECONDS);
118		shouldThrow();
119		} catch (ExecutionException success) {
120	<	assertSame(ex, success.getCause());
120	>	assertSame(cause, success.getCause());
121		} catch (Throwable fail) { threadUnexpectedException(fail); }
122	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
123	+
124		try {
125		f.join();
126		shouldThrow();
127		} catch (CompletionException success) {
128	<	assertSame(ex, success.getCause());
129	<	}
128	>	assertSame(cause, success.getCause());
129	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
130	>
131		try {
132		f.getNow(null);
133		shouldThrow();
134		} catch (CompletionException success) {
135	<	assertSame(ex, success.getCause());
136	<	}
135	>	assertSame(cause, success.getCause());
136	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
137	>
138		try {
139		f.get();
140		shouldThrow();
141		} catch (ExecutionException success) {
142	<	assertSame(ex, success.getCause());
142	>	assertSame(cause, success.getCause());
143		} catch (Throwable fail) { threadUnexpectedException(fail); }
144	<	assertTrue(f.isDone());
144	>
145		assertFalse(f.isCancelled());
146	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
146	>	assertTrue(f.isDone());
147	>	assertTrue(f.isCompletedExceptionally());
148	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
149	>	}
150	>
151	>	void checkCompletedWithWrappedCFException(CompletableFuture<?> f) {
152	>	checkCompletedExceptionally(f, true,
153	>	t -> assertTrue(t instanceof CFException));
154	>	}
155	>
156	>	void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) {
157	>	checkCompletedExceptionally(f, true,
158	>	t -> assertTrue(t instanceof CancellationException));
159	>	}
160	>
161	>	void checkCompletedWithTimeoutException(CompletableFuture<?> f) {
162	>	checkCompletedExceptionally(f, false,
163	>	t -> assertTrue(t instanceof TimeoutException));
164	>	}
165	>
166	>	void checkCompletedWithWrappedException(CompletableFuture<?> f,
167	>	Throwable ex) {
168	>	checkCompletedExceptionally(f, true, t -> assertSame(t, ex));
169	>	}
170	>
171	>	void checkCompletedExceptionally(CompletableFuture<?> f, Throwable ex) {
172	>	checkCompletedExceptionally(f, false, t -> assertSame(t, ex));
173		}
174
175		void checkCancelled(CompletableFuture<?> f) {
176	+	long startTime = System.nanoTime();
177		try {
178		f.get(LONG_DELAY_MS, MILLISECONDS);
179		shouldThrow();
180		} catch (CancellationException success) {
181		} catch (Throwable fail) { threadUnexpectedException(fail); }
182	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
183	+
184		try {
185		f.join();
186		shouldThrow();
#	Line 155 | Line 194 | public class CompletableFutureTest exten
194		shouldThrow();
195		} catch (CancellationException success) {
196		} catch (Throwable fail) { threadUnexpectedException(fail); }
158	–	assertTrue(f.isDone());
159	–	assertTrue(f.isCompletedExceptionally());
160	–	assertTrue(f.isCancelled());
161	–	assertTrue(f.toString().contains("[Completed exceptionally]"));
162	–	}
197
198	<	void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) {
199	<	try {
166	<	f.get(LONG_DELAY_MS, MILLISECONDS);
167	<	shouldThrow();
168	<	} catch (ExecutionException success) {
169	<	assertTrue(success.getCause() instanceof CancellationException);
170	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
171	<	try {
172	<	f.join();
173	<	shouldThrow();
174	<	} catch (CompletionException success) {
175	<	assertTrue(success.getCause() instanceof CancellationException);
176	<	}
177	<	try {
178	<	f.getNow(null);
179	<	shouldThrow();
180	<	} catch (CompletionException success) {
181	<	assertTrue(success.getCause() instanceof CancellationException);
182	<	}
183	<	try {
184	<	f.get();
185	<	shouldThrow();
186	<	} catch (ExecutionException success) {
187	<	assertTrue(success.getCause() instanceof CancellationException);
188	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
198	>	assertTrue(exceptionalCompletion(f) instanceof CancellationException);
199	>
200		assertTrue(f.isDone());
190	–	assertFalse(f.isCancelled());
201		assertTrue(f.isCompletedExceptionally());
202	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
202	>	assertTrue(f.isCancelled());
203	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
204		}
205
206		/**
#	Line 197 | Line 208 | public class CompletableFutureTest exten
208		* by methods isDone, isCancelled, and getNow
209		*/
210		public void testConstructor() {
211	<	CompletableFuture<Integer> f = new CompletableFuture<>();
211	>	CompletableFuture<Item> f = new CompletableFuture<>();
212		checkIncomplete(f);
213		}
214
#	Line 206 | Line 217 | public class CompletableFutureTest exten
217		* isCancelled, join, get, and getNow
218		*/
219		public void testComplete() {
220	<	CompletableFuture<Integer> f = new CompletableFuture<>();
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<>();
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 228 | 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<>();
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<>();
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);
#	Line 261 | Line 280 | public class CompletableFutureTest exten
280		* obtrudeException forces completion with given exception
281		*/
282		public void testObtrudeException() {
283	<	CompletableFuture<Integer> f = new CompletableFuture<>();
284	<	checkIncomplete(f);
285	<	f.complete(one);
286	<	checkCompletedNormally(f, one);
287	<	f.obtrudeException(new CFException());
269	<	checkCompletedWithWrappedCFException(f);
283	>	for (Item v1 : new Item[] { one, null })
284	>	{
285	>	CFException ex;
286	>	CompletableFuture<Item> f;
287	>
288		f = new CompletableFuture<>();
289	<	f.obtrudeException(new CFException());
290	<	checkCompletedWithWrappedCFException(f);
289	>	assertTrue(f.complete(v1));
290	>	for (int i = 0; i < 2; i++) {
291	>	f.obtrudeException(ex = new CFException());
292	>	checkCompletedExceptionally(f, ex);
293	>	}
294	>
295	>	f = new CompletableFuture<>();
296	>	for (int i = 0; i < 2; i++) {
297	>	f.obtrudeException(ex = new CFException());
298	>	checkCompletedExceptionally(f, ex);
299	>	}
300	>
301		f = new CompletableFuture<>();
302		f.completeExceptionally(new CFException());
303	<	f.obtrudeValue(four);
304	<	checkCompletedNormally(f, four);
305	<	f.obtrudeException(new CFException());
306	<	checkCompletedWithWrappedCFException(f);
307	<	}
303	>	f.obtrudeValue(v1);
304	>	checkCompletedNormally(f, v1);
305	>	f.obtrudeException(ex = new CFException());
306	>	checkCompletedExceptionally(f, ex);
307	>	f.completeExceptionally(new CFException());
308	>	checkCompletedExceptionally(f, ex);
309	>	assertFalse(f.complete(v1));
310	>	checkCompletedExceptionally(f, ex);
311	>	}}
312
313		/**
314		* getNumberOfDependents returns number of dependent tasks
315		*/
316		public void testGetNumberOfDependents() {
317	<	CompletableFuture<Integer> f = new CompletableFuture<>();
318	<	assertEquals(0, f.getNumberOfDependents());
319	<	CompletableFuture g = f.thenRun(new Noop(ExecutionMode.DEFAULT));
320	<	assertEquals(1, f.getNumberOfDependents());
321	<	assertEquals(0, g.getNumberOfDependents());
322	<	CompletableFuture h = f.thenRun(new Noop(ExecutionMode.DEFAULT));
323	<	assertEquals(2, f.getNumberOfDependents());
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(0, f.getNumberOfDependents());
331	<	assertEquals(0, g.getNumberOfDependents());
332	<	}
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 320 | Line 381 | public class CompletableFutureTest exten
381		checkCompletedNormally(f, "test");
382		}
383
384	<	// Choose non-commutative actions for better coverage
384	>	abstract static class CheckedAction {
385	>	int invocationCount = 0;
386	>	final ExecutionMode m;
387	>	CheckedAction(ExecutionMode m) { this.m = m; }
388	>	void invoked() {
389	>	m.checkExecutionMode();
390	>	mustEqual(0, invocationCount++);
391	>	}
392	>	void assertNotInvoked() { mustEqual(0, invocationCount); }
393	>	void assertInvoked() { mustEqual(1, invocationCount); }
394	>	}
395
396	<	// A non-commutative function that handles and produces null values as well.
397	<	static Integer subtract(Integer x, Integer y) {
398	<	return (x == null && y == null) ? null :
399	<	((x == null) ? 42 : x.intValue())
400	<	- ((y == null) ? 99 : y.intValue());
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	>
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 Integer inc(Integer x) {
421	<	return (x == null) ? null : x + 1;
420	>	static Item inc(Item x) {
421	>	return (x == null) ? null : new Item(x.value + 1);
422		}
423
424	<	static final Supplier<Integer> supplyOne =
425	<	() -> Integer.valueOf(1);
426	<	static final Function<Integer, Integer> inc =
427	<	(Integer x) -> Integer.valueOf(x.intValue() + 1);
428	<	static final BiFunction<Integer, Integer, Integer> subtract =
429	<	(Integer x, Integer y) -> subtract(x, y);
430	<	static final class IncAction implements Consumer<Integer> {
344	<	int invocationCount = 0;
345	<	Integer value;
346	<	public void accept(Integer x) {
347	<	invocationCount++;
348	<	value = inc(x);
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 IncFunction implements Function<Integer,Integer> {
434	<	final ExecutionMode m;
435	<	int invocationCount = 0;
436	<	Integer value;
437	<	IncFunction(ExecutionMode m) { this.m = m; }
438	<	public Integer apply(Integer x) {
439	<	m.checkExecutionMode();
358	<	invocationCount++;
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 SubtractAction implements BiConsumer<Integer, Integer> {
444	<	final ExecutionMode m;
445	<	int invocationCount = 0;
446	<	Integer value;
447	<	// Check this action was invoked exactly once when result is computed.
448	<	SubtractAction(ExecutionMode m) { this.m = m; }
449	<	public void accept(Integer x, Integer y) {
450	<	m.checkExecutionMode();
451	<	invocationCount++;
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	>
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 SubtractFunction implements BiFunction<Integer, Integer, Integer> {
462	<	final ExecutionMode m;
463	<	int invocationCount = 0;
464	<	Integer value;
465	<	// Check this action was invoked exactly once when result is computed.
466	<	SubtractFunction(ExecutionMode m) { this.m = m; }
467	<	public Integer apply(Integer x, Integer y) {
381	<	m.checkExecutionMode();
382	<	invocationCount++;
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 Noop implements Runnable {
472	<	final ExecutionMode m;
473	<	int invocationCount = 0;
389	<	Noop(ExecutionMode m) { this.m = m; }
471	>
472	>	static class Noop extends CheckedAction implements Runnable {
473	>	Noop(ExecutionMode m) { super(m); }
474		public void run() {
475	<	m.checkExecutionMode();
392	<	invocationCount++;
475	>	invoked();
476		}
477		}
478
479	<	static final class FailingSupplier implements Supplier<Integer> {
480	<	final ExecutionMode m;
481	<	int invocationCount = 0;
482	<	FailingSupplier(ExecutionMode m) { this.m = m; }
483	<	public Integer get() {
484	<	m.checkExecutionMode();
485	<	invocationCount++;
486	<	throw new CFException();
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	<	static final class FailingConsumer implements Consumer<Integer> {
490	<	final ExecutionMode m;
491	<	int invocationCount = 0;
492	<	FailingConsumer(ExecutionMode m) { this.m = m; }
493	<	public void accept(Integer x) {
494	<	m.checkExecutionMode();
495	<	invocationCount++;
496	<	throw new CFException();
489	>
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	<	static final class FailingBiConsumer implements BiConsumer<Integer, Integer> {
502	<	final ExecutionMode m;
503	<	int invocationCount = 0;
504	<	FailingBiConsumer(ExecutionMode m) { this.m = m; }
505	<	public void accept(Integer x, Integer y) {
506	<	m.checkExecutionMode();
507	<	invocationCount++;
508	<	throw new CFException();
501	>
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	<	static final class FailingFunction implements Function<Integer, Integer> {
514	<	final ExecutionMode m;
515	<	int invocationCount = 0;
516	<	FailingFunction(ExecutionMode m) { this.m = m; }
517	<	public Integer apply(Integer x) {
518	<	m.checkExecutionMode();
519	<	invocationCount++;
520	<	throw new CFException();
513	>
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	<	static final class FailingBiFunction implements BiFunction<Integer, Integer, Integer> {
526	<	final ExecutionMode m;
527	<	int invocationCount = 0;
528	<	FailingBiFunction(ExecutionMode m) { this.m = m; }
529	<	public Integer apply(Integer x, Integer y) {
530	<	m.checkExecutionMode();
531	<	invocationCount++;
532	<	throw new CFException();
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	<	static final class FailingRunnable implements Runnable {
538	<	final ExecutionMode m;
539	<	int invocationCount = 0;
540	<	FailingRunnable(ExecutionMode m) { this.m = m; }
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	<	m.checkExecutionMode();
543	<	invocationCount++;
453	<	throw new CFException();
542	>	invoked();
543	>	throw ex;
544		}
545		}
546
547	<	static final class CompletableFutureInc
548	<	implements Function<Integer, CompletableFuture<Integer>> {
549	<	final ExecutionMode m;
550	<	int invocationCount = 0;
551	<	CompletableFutureInc(ExecutionMode m) { this.m = m; }
552	<	public CompletableFuture<Integer> apply(Integer x) {
553	<	m.checkExecutionMode();
554	<	invocationCount++;
465	<	CompletableFuture<Integer> f = new CompletableFuture<>();
466	<	f.complete(inc(x));
467	<	return f;
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 final class FailingCompletableFutureFunction
559	<	implements Function<Integer, CompletableFuture<Integer>> {
560	<	final ExecutionMode m;
561	<	int invocationCount = 0;
562	<	FailingCompletableFutureFunction(ExecutionMode m) { this.m = m; }
563	<	public CompletableFuture<Integer> apply(Integer x) {
564	<	m.checkExecutionMode();
565	<	invocationCount++;
566	<	throw new CFException();
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 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
#	Line 494 | Line 611 | public class CompletableFutureTest exten
611		}
612		}
613
614	+	static final boolean defaultExecutorIsCommonPool
615	+	= ForkJoinPool.getCommonPoolParallelism() > 1;
616	+
617		/**
618		* Permits the testing of parallel code for the 3 different
619	<	* execution modes without repeating all the testing code.
619	>	* execution modes without copy/pasting all the test methods.
620		*/
621		enum ExecutionMode {
622	<	DEFAULT {
622	>	SYNC {
623		public void checkExecutionMode() {
624	+	assertFalse(ThreadExecutor.startedCurrentThread());
625		assertNull(ForkJoinTask.getPool());
626		}
627		public CompletableFuture<Void> runAsync(Runnable a) {
628		throw new UnsupportedOperationException();
629		}
630	+	public <U> CompletableFuture<U> supplyAsync(Supplier<U> a) {
631	+	throw new UnsupportedOperationException();
632	+	}
633		public <T> CompletableFuture<Void> thenRun
634		(CompletableFuture<T> f, Runnable a) {
635		return f.thenRun(a);
#	Line 567 | Line 691 | public class CompletableFutureTest exten
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		},
571	–
704		ASYNC {
705		public void checkExecutionMode() {
706	<	assertSame(ForkJoinPool.commonPool(),
707	<	ForkJoinTask.getPool());
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);
#	Line 638 | Line 773 | public class CompletableFutureTest exten
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 {
#	Line 647 | Line 793 | public class CompletableFutureTest exten
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());
#	Line 708 | Line 857 | public class CompletableFutureTest exten
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
#	Line 749 | Line 909 | public class CompletableFutureTest exten
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		/**
#	Line 756 | Line 922 | public class CompletableFutureTest exten
922		* normally, and source result is propagated
923		*/
924		public void testExceptionally_normalCompletion() {
925	+	for (ExecutionMode m : ExecutionMode.values())
926		for (boolean createIncomplete : new boolean[] { true, false })
927	<	for (Integer v1 : new Integer[] { 1, null })
927	>	for (Item v1 : new Item[] { one, null })
928		{
929	<	final AtomicInteger a = new AtomicInteger(0);
930	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
931	<	if (!createIncomplete) f.complete(v1);
932	<	final CompletableFuture<Integer> g = f.exceptionally
933	<	((Throwable t) -> {
934	<	// Should not be called
935	<	a.getAndIncrement();
769	<	throw new AssertionError();
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) f.complete(v1);
937	>	if (createIncomplete) assertTrue(f.complete(v1));
938
939		checkCompletedNormally(g, v1);
940		checkCompletedNormally(f, v1);
941	<	assertEquals(0, a.get());
941	>	mustEqual(0, ran.get());
942		}}
943
778	–
944		/**
945		* exceptionally action completes with function value on source
946		* exception
947		*/
948		public void testExceptionally_exceptionalCompletion() {
949	+	for (ExecutionMode m : ExecutionMode.values())
950		for (boolean createIncomplete : new boolean[] { true, false })
951	<	for (Integer v1 : new Integer[] { 1, null })
951	>	for (Item v1 : new Item[] { one, null })
952		{
953	<	final AtomicInteger a = new AtomicInteger(0);
953	>	final AtomicInteger ran = new AtomicInteger(0);
954		final CFException ex = new CFException();
955	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
955	>	final CompletableFuture<Item> f = new CompletableFuture<>();
956		if (!createIncomplete) f.completeExceptionally(ex);
957	<	final CompletableFuture<Integer> g = f.exceptionally
958	<	((Throwable t) -> {
959	<	ExecutionMode.DEFAULT.checkExecutionMode();
960	<	threadAssertSame(t, ex);
961	<	a.getAndIncrement();
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	<	assertEquals(1, a.get());
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 })
806	–	for (Integer v1 : new Integer[] { 1, null })
977		{
978	<	final AtomicInteger a = new AtomicInteger(0);
978	>	final AtomicInteger ran = new AtomicInteger(0);
979		final CFException ex1 = new CFException();
980		final CFException ex2 = new CFException();
981	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
981	>	final CompletableFuture<Item> f = new CompletableFuture<>();
982		if (!createIncomplete) f.completeExceptionally(ex1);
983	<	final CompletableFuture<Integer> g = f.exceptionally
984	<	((Throwable t) -> {
985	<	ExecutionMode.DEFAULT.checkExecutionMode();
986	<	threadAssertSame(t, ex1);
987	<	a.getAndIncrement();
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	>	checkCompletedWithWrappedCancellationException(g);
1074	>	checkCancelled(f);
1075	>	mustEqual(1, ran.get());
1076	>	}}
1077	>
1078	>	/**
1079	>	* If a whenComplete action throws an exception when triggered by
1080	>	* a normal completion, it completes exceptionally
1081	>	*/
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	<	checkCompletedWithWrappedCFException(g, ex2);
1134	<	assertEquals(1, a.get());
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		/**
#	Line 830 | Line 1146 | public class CompletableFutureTest exten
1146		public void testHandle_normalCompletion() {
1147		for (ExecutionMode m : ExecutionMode.values())
1148		for (boolean createIncomplete : new boolean[] { true, false })
1149	<	for (Integer v1 : new Integer[] { 1, null })
1149	>	for (Item v1 : new Item[] { one, null })
1150		{
1151	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
1152	<	final AtomicInteger a = new AtomicInteger(0);
1153	<	if (!createIncomplete) f.complete(v1);
1154	<	final CompletableFuture<Integer> g = m.handle
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	<	(Integer x, Throwable t) -> {
1156	>	(Item result, Throwable t) -> {
1157		m.checkExecutionMode();
1158	<	threadAssertSame(x, v1);
1159	<	threadAssertNull(t);
1160	<	a.getAndIncrement();
1158	>	assertSame(result, v1);
1159	>	assertNull(t);
1160	>	ran.getAndIncrement();
1161		return inc(v1);
1162		});
1163	<	if (createIncomplete) f.complete(v1);
1163	>	if (createIncomplete) assertTrue(f.complete(v1));
1164
1165		checkCompletedNormally(g, inc(v1));
1166		checkCompletedNormally(f, v1);
1167	<	assertEquals(1, a.get());
1167	>	mustEqual(1, ran.get());
1168		}}
1169
1170		/**
#	Line 858 | Line 1174 | public class CompletableFutureTest exten
1174		public void testHandle_exceptionalCompletion() {
1175		for (ExecutionMode m : ExecutionMode.values())
1176		for (boolean createIncomplete : new boolean[] { true, false })
1177	<	for (Integer v1 : new Integer[] { 1, null })
1177	>	for (Item v1 : new Item[] { one, null })
1178		{
1179	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
1180	<	final AtomicInteger a = new AtomicInteger(0);
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<Integer> g = m.handle
1183	>	final CompletableFuture<Item> g = m.handle
1184		(f,
1185	<	(Integer x, Throwable t) -> {
1185	>	(Item result, Throwable t) -> {
1186		m.checkExecutionMode();
1187	<	threadAssertNull(x);
1188	<	threadAssertSame(t, ex);
1189	<	a.getAndIncrement();
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	<	checkCompletedWithWrappedCFException(f, ex);
1196	<	assertEquals(1, a.get());
1195	>	checkCompletedExceptionally(f, ex);
1196	>	mustEqual(1, ran.get());
1197		}}
1198
1199		/**
#	Line 888 | Line 1204 | public class CompletableFutureTest exten
1204		for (ExecutionMode m : ExecutionMode.values())
1205		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1206		for (boolean createIncomplete : new boolean[] { true, false })
1207	<	for (Integer v1 : new Integer[] { 1, null })
1207	>	for (Item v1 : new Item[] { one, null })
1208		{
1209	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
1210	<	final AtomicInteger a = new AtomicInteger(0);
1209	>	final CompletableFuture<Item> f = new CompletableFuture<>();
1210	>	final AtomicInteger ran = new AtomicInteger(0);
1211		if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1212	<	final CompletableFuture<Integer> g = m.handle
1212	>	final CompletableFuture<Item> g = m.handle
1213		(f,
1214	<	(Integer x, Throwable t) -> {
1214	>	(Item result, Throwable t) -> {
1215		m.checkExecutionMode();
1216	<	threadAssertNull(x);
1217	<	threadAssertTrue(t instanceof CancellationException);
1218	<	a.getAndIncrement();
1216	>	assertNull(result);
1217	>	assertTrue(t instanceof CancellationException);
1218	>	ran.getAndIncrement();
1219		return v1;
1220		});
1221		if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1222
1223		checkCompletedNormally(g, v1);
1224		checkCancelled(f);
1225	<	assertEquals(1, a.get());
1225	>	mustEqual(1, ran.get());
1226		}}
1227
1228		/**
1229	<	* handle result completes exceptionally if action does
1229	>	* If a "handle action" throws an exception when triggered by
1230	>	* a normal completion, it completes exceptionally
1231		*/
1232	<	public void testHandle_sourceFailedActionFailed() {
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<Integer> f = new CompletableFuture<>();
1238	<	final AtomicInteger a = new AtomicInteger(0);
1239	<	final CFException ex1 = new CFException();
1240	<	final CFException ex2 = new CFException();
1241	<	if (!createIncomplete) f.completeExceptionally(ex1);
924	<	final CompletableFuture<Integer> g = m.handle
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	<	(Integer x, Throwable t) -> {
1243	>	(Item result, Throwable t) -> {
1244		m.checkExecutionMode();
1245	<	threadAssertNull(x);
1246	<	threadAssertSame(ex1, t);
1247	<	a.getAndIncrement();
1248	<	throw ex2;
1245	>	assertSame(result, v1);
1246	>	assertNull(t);
1247	>	ran.getAndIncrement();
1248	>	throw ex;
1249		});
1250	<	if (createIncomplete) f.completeExceptionally(ex1);
1250	>	if (createIncomplete) assertTrue(f.complete(v1));
1251
1252	<	checkCompletedWithWrappedCFException(g, ex2);
1253	<	checkCompletedWithWrappedCFException(f, ex1);
1254	<	assertEquals(1, a.get());
1252	>	checkCompletedWithWrappedException(g, ex);
1253	>	checkCompletedNormally(f, v1);
1254	>	mustEqual(1, ran.get());
1255		}}
1256
1257	<	public void testHandle_sourceCompletedNormallyActionFailed() {
1258	<	for (ExecutionMode m : ExecutionMode.values())
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 (Integer v1 : new Integer[] { 1, null })
1264	>	for (ExecutionMode m : ExecutionMode.values())
1265		{
1266	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
1267	<	final AtomicInteger a = new AtomicInteger(0);
1268	<	final CFException ex = new CFException();
1269	<	if (!createIncomplete) f.complete(v1);
1270	<	final CompletableFuture<Integer> g = m.handle
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	<	(Integer x, Throwable t) -> {
1274	>	(Item result, Throwable t) -> {
1275		m.checkExecutionMode();
1276	<	threadAssertSame(x, v1);
1277	<	threadAssertNull(t);
1278	<	a.getAndIncrement();
1279	<	throw ex;
1276	>	assertNull(result);
1277	>	assertSame(ex1, t);
1278	>	ran.getAndIncrement();
1279	>	throw ex2;
1280		});
1281	<	if (createIncomplete) f.complete(v1);
1281	>	if (createIncomplete) f.completeExceptionally(ex1);
1282
1283	<	checkCompletedWithWrappedCFException(g, ex);
1284	<	checkCompletedNormally(f, v1);
1285	<	assertEquals(1, a.get());
1283	>	checkCompletedWithWrappedException(g, ex2);
1284	>	checkCompletedExceptionally(f, ex1);
1285	>	mustEqual(1, ran.get());
1286		}}
1287
1288		/**
#	Line 976 | Line 1299 | public class CompletableFutureTest exten
1299		final CompletableFuture<Void> f = m.runAsync(r);
1300		assertNull(f.join());
1301		checkCompletedNormally(f, null);
1302	<	assertEquals(1, r.invocationCount);
1302	>	r.assertInvoked();
1303		}}
1304
1305		/**
#	Line 991 | Line 1314 | public class CompletableFutureTest exten
1314		{
1315		final FailingRunnable r = new FailingRunnable(m);
1316		final CompletableFuture<Void> f = m.runAsync(r);
1317	<	checkCompletedWithWrappedCFException(f);
1318	<	assertEquals(1, r.invocationCount);
1317	>	checkCompletedWithWrappedException(f, r.ex);
1318	>	r.assertInvoked();
1319		}}
1320
1321	<	/**
1322	<	* supplyAsync completes with result of supplier
1323	<	*/
1324	<	public void testSupplyAsync() {
1325	<	CompletableFuture<Integer> f;
1326	<	f = CompletableFuture.supplyAsync(supplyOne);
1327	<	assertEquals(f.join(), one);
1328	<	checkCompletedNormally(f, one);
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;
1339	<	f = CompletableFuture.supplyAsync(supplyOne, new ThreadExecutor());
1340	<	assertEquals(f.join(), one);
1341	<	checkCompletedNormally(f, one);
1342	<	}
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(ExecutionMode.ASYNC);
1357	<	CompletableFuture<Integer> f = CompletableFuture.supplyAsync(r);
1358	<	checkCompletedWithWrappedCFException(f);
1359	<	assertEquals(1, r.invocationCount);
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 1032 | Line 1385 | public class CompletableFutureTest exten
1385		*/
1386		public void testThenRun_normalCompletion() {
1387		for (ExecutionMode m : ExecutionMode.values())
1388	<	for (boolean createIncomplete : new boolean[] { true, false })
1036	<	for (Integer v1 : new Integer[] { 1, null })
1388	>	for (Item v1 : new Item[] { one, null })
1389		{
1390	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
1391	<	final Noop r = new Noop(m);
1392	<	if (!createIncomplete) f.complete(v1);
1393	<	final CompletableFuture<Void> g = m.thenRun(f, r);
1394	<	if (createIncomplete) {
1395	<	checkIncomplete(g);
1396	<	f.complete(v1);
1397	<	}
1398	<
1399	<	checkCompletedNormally(g, null);
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	<	assertEquals(1, r.invocationCount);
1412	>	for (Noop r : rs) r.assertInvoked();
1413		}}
1414
1415		/**
#	Line 1055 | Line 1418 | public class CompletableFutureTest exten
1418		*/
1419		public void testThenRun_exceptionalCompletion() {
1420		for (ExecutionMode m : ExecutionMode.values())
1058	–	for (boolean createIncomplete : new boolean[] { true, false })
1421		{
1422		final CFException ex = new CFException();
1423	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
1424	<	final Noop r = new Noop(m);
1425	<	if (!createIncomplete) f.completeExceptionally(ex);
1426	<	final CompletableFuture<Void> g = m.thenRun(f, r);
1427	<	if (createIncomplete) {
1428	<	checkIncomplete(g);
1429	<	f.completeExceptionally(ex);
1430	<	}
1431	<
1432	<	checkCompletedWithWrappedCFException(g, ex);
1433	<	checkCompletedWithWrappedCFException(f, ex);
1434	<	assertEquals(0, r.invocationCount);
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		/**
#	Line 1077 | Line 1450 | public class CompletableFutureTest exten
1450		*/
1451		public void testThenRun_sourceCancelled() {
1452		for (ExecutionMode m : ExecutionMode.values())
1080	–	for (boolean createIncomplete : new boolean[] { true, false })
1453		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1454		{
1455	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
1456	<	final Noop r = new Noop(m);
1457	<	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1458	<	final CompletableFuture<Void> g = m.thenRun(f, r);
1459	<	if (createIncomplete) {
1460	<	checkIncomplete(g);
1461	<	assertTrue(f.cancel(mayInterruptIfRunning));
1462	<	}
1463	<
1464	<	checkCompletedWithWrappedCancellationException(g);
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	<	assertEquals(0, r.invocationCount);
1477	>	for (Noop r : rs) r.assertNotInvoked();
1478		}}
1479
1480		/**
#	Line 1099 | Line 1482 | public class CompletableFutureTest exten
1482		*/
1483		public void testThenRun_actionFailed() {
1484		for (ExecutionMode m : ExecutionMode.values())
1485	<	for (boolean createIncomplete : new boolean[] { true, false })
1103	<	for (Integer v1 : new Integer[] { 1, null })
1485	>	for (Item v1 : new Item[] { one, null })
1486		{
1487	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
1488	<	final FailingRunnable r = new FailingRunnable(m);
1489	<	if (!createIncomplete) f.complete(v1);
1490	<	final CompletableFuture<Void> g = m.thenRun(f, r);
1491	<	if (createIncomplete) {
1492	<	checkIncomplete(g);
1493	<	f.complete(v1);
1494	<	}
1495	<
1496	<	checkCompletedWithWrappedCFException(g);
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
#	Line 1120 | Line 1510 | public class CompletableFutureTest exten
1510		*/
1511		public void testThenApply_normalCompletion() {
1512		for (ExecutionMode m : ExecutionMode.values())
1513	<	for (boolean createIncomplete : new boolean[] { true, false })
1124	<	for (Integer v1 : new Integer[] { 1, null })
1513	>	for (Item v1 : new Item[] { one, null })
1514		{
1515	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
1516	<	final IncFunction r = new IncFunction(m);
1517	<	if (!createIncomplete) f.complete(v1);
1518	<	final CompletableFuture<Integer> g = m.thenApply(f, r);
1519	<	if (createIncomplete) {
1520	<	checkIncomplete(g);
1521	<	f.complete(v1);
1522	<	}
1523	<
1524	<	checkCompletedNormally(g, inc(v1));
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	<	assertEquals(1, r.invocationCount);
1532	>	for (IncFunction r : rs) r.assertValue(inc(v1));
1533		}}
1534
1535		/**
#	Line 1143 | Line 1538 | public class CompletableFutureTest exten
1538		*/
1539		public void testThenApply_exceptionalCompletion() {
1540		for (ExecutionMode m : ExecutionMode.values())
1146	–	for (boolean createIncomplete : new boolean[] { true, false })
1541		{
1542		final CFException ex = new CFException();
1543	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
1544	<	final IncFunction r = new IncFunction(m);
1545	<	if (!createIncomplete) f.completeExceptionally(ex);
1546	<	final CompletableFuture<Integer> g = m.thenApply(f, r);
1547	<	if (createIncomplete) {
1548	<	checkIncomplete(g);
1549	<	f.completeExceptionally(ex);
1550	<	}
1551	<
1552	<	checkCompletedWithWrappedCFException(g, ex);
1553	<	checkCompletedWithWrappedCFException(f, ex);
1554	<	assertEquals(0, r.invocationCount);
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		/**
#	Line 1165 | Line 1563 | public class CompletableFutureTest exten
1563		*/
1564		public void testThenApply_sourceCancelled() {
1565		for (ExecutionMode m : ExecutionMode.values())
1168	–	for (boolean createIncomplete : new boolean[] { true, false })
1566		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1567		{
1568	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
1569	<	final IncFunction r = new IncFunction(m);
1570	<	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1174	<	final CompletableFuture<Integer> g = m.thenApply(f, r);
1175	<	if (createIncomplete) {
1176	<	checkIncomplete(g);
1177	<	assertTrue(f.cancel(mayInterruptIfRunning));
1178	<	}
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	<	checkCompletedWithWrappedCancellationException(g);
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	<	assertEquals(0, r.invocationCount);
1583	>	for (IncFunction r : rs) r.assertNotInvoked();
1584		}}
1585
1586		/**
#	Line 1187 | Line 1588 | public class CompletableFutureTest exten
1588		*/
1589		public void testThenApply_actionFailed() {
1590		for (ExecutionMode m : ExecutionMode.values())
1591	<	for (boolean createIncomplete : new boolean[] { true, false })
1191	<	for (Integer v1 : new Integer[] { 1, null })
1591	>	for (Item v1 : new Item[] { one, null })
1592		{
1593	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
1594	<	final FailingFunction r = new FailingFunction(m);
1595	<	if (!createIncomplete) f.complete(v1);
1596	<	final CompletableFuture<Integer> g = m.thenApply(f, r);
1597	<	if (createIncomplete) {
1598	<	checkIncomplete(g);
1599	<	f.complete(v1);
1600	<	}
1601	<
1602	<	checkCompletedWithWrappedCFException(g);
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
#	Line 1208 | Line 1612 | public class CompletableFutureTest exten
1612		*/
1613		public void testThenAccept_normalCompletion() {
1614		for (ExecutionMode m : ExecutionMode.values())
1615	<	for (boolean createIncomplete : new boolean[] { true, false })
1212	<	for (Integer v1 : new Integer[] { 1, null })
1615	>	for (Item v1 : new Item[] { one, null })
1616		{
1617	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
1618	<	final IncAction r = new IncAction();
1619	<	if (!createIncomplete) f.complete(v1);
1620	<	final CompletableFuture<Void> g = m.thenAccept(f, r);
1621	<	if (createIncomplete) {
1622	<	checkIncomplete(g);
1623	<	f.complete(v1);
1624	<	}
1625	<
1626	<	checkCompletedNormally(g, null);
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	<	assertEquals(1, r.invocationCount);
1226	<	assertEquals(inc(v1), r.value);
1634	>	for (NoopConsumer r : rs) r.assertValue(v1);
1635		}}
1636
1637		/**
#	Line 1232 | Line 1640 | public class CompletableFutureTest exten
1640		*/
1641		public void testThenAccept_exceptionalCompletion() {
1642		for (ExecutionMode m : ExecutionMode.values())
1235	–	for (boolean createIncomplete : new boolean[] { true, false })
1643		{
1644		final CFException ex = new CFException();
1645	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
1646	<	final IncAction r = new IncAction();
1647	<	if (!createIncomplete) f.completeExceptionally(ex);
1648	<	final CompletableFuture<Void> g = m.thenAccept(f, r);
1649	<	if (createIncomplete) {
1650	<	checkIncomplete(g);
1651	<	f.completeExceptionally(ex);
1652	<	}
1653	<
1654	<	checkCompletedWithWrappedCFException(g, ex);
1655	<	checkCompletedWithWrappedCFException(f, ex);
1656	<	assertEquals(0, r.invocationCount);
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 action does
1664	>	* thenAccept result completes exceptionally if source cancelled
1665		*/
1666	<	public void testThenAccept_actionFailed() {
1666	>	public void testThenAccept_sourceCancelled() {
1667		for (ExecutionMode m : ExecutionMode.values())
1668	<	for (boolean createIncomplete : new boolean[] { true, false })
1258	<	for (Integer v1 : new Integer[] { 1, null })
1668	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1669		{
1670	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
1671	<	final FailingConsumer r = new FailingConsumer(m);
1672	<	if (!createIncomplete) f.complete(v1);
1263	<	final CompletableFuture<Void> g = m.thenAccept(f, r);
1264	<	if (createIncomplete) {
1265	<	checkIncomplete(g);
1266	<	f.complete(v1);
1267	<	}
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	<	checkCompletedWithWrappedCFException(g);
1675	<	checkCompletedNormally(f, v1);
1674	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1675	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1676	>	assertTrue(f.cancel(mayInterruptIfRunning));
1677	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1678	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1679	>
1680	>	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	<	* thenAccept result completes exceptionally if source cancelled
1689	>	* thenAccept result completes exceptionally if action does
1690		*/
1691	<	public void testThenAccept_sourceCancelled() {
1691	>	public void testThenAccept_actionFailed() {
1692		for (ExecutionMode m : ExecutionMode.values())
1693	<	for (boolean createIncomplete : new boolean[] { true, false })
1279	<	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1693	>	for (Item v1 : new Item[] { one, null })
1694		{
1695	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
1696	<	final IncAction r = new IncAction();
1697	<	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1698	<	final CompletableFuture<Void> g = m.thenAccept(f, r);
1699	<	if (createIncomplete) {
1700	<	checkIncomplete(g);
1701	<	assertTrue(f.cancel(mayInterruptIfRunning));
1702	<	}
1703	<
1704	<	checkCompletedWithWrappedCancellationException(g);
1705	<	checkCancelled(f);
1706	<	assertEquals(0, r.invocationCount);
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		/**
#	Line 1298 | Line 1715 | public class CompletableFutureTest exten
1715		*/
1716		public void testThenCombine_normalCompletion() {
1717		for (ExecutionMode m : ExecutionMode.values())
1301	–	for (boolean createIncomplete : new boolean[] { true, false })
1718		for (boolean fFirst : new boolean[] { true, false })
1719	<	for (Integer v1 : new Integer[] { 1, null })
1720	<	for (Integer v2 : new Integer[] { 2, null })
1719	>	for (Item v1 : new Item[] { one, null })
1720	>	for (Item v2 : new Item[] { two, null })
1721		{
1722	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
1723	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
1724	<	final SubtractFunction r = new SubtractFunction(m);
1725	<
1726	<	if (fFirst) f.complete(v1); else g.complete(v2);
1727	<	if (!createIncomplete)
1728	<	if (!fFirst) f.complete(v1); else g.complete(v2);
1729	<	final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1730	<	if (createIncomplete) {
1731	<	checkIncomplete(h);
1732	<	assertEquals(0, r.invocationCount);
1733	<	if (!fFirst) f.complete(v1); else g.complete(v2);
1734	<	}
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
1320	–	checkCompletedNormally(h, subtract(v1, v2));
1753		checkCompletedNormally(f, v1);
1754		checkCompletedNormally(g, v2);
1323	–	assertEquals(1, r.invocationCount);
1755		}}
1756
1757		/**
1758		* thenCombine result completes exceptionally after exceptional
1759		* completion of either source
1760		*/
1761	<	public void testThenCombine_exceptionalCompletion() {
1761	>	public void testThenCombine_exceptionalCompletion() throws Throwable {
1762		for (ExecutionMode m : ExecutionMode.values())
1332	–	for (boolean createIncomplete : new boolean[] { true, false })
1763		for (boolean fFirst : new boolean[] { true, false })
1764	<	for (Integer v1 : new Integer[] { 1, null })
1764	>	for (boolean failFirst : new boolean[] { true, false })
1765	>	for (Item v1 : new Item[] { one, null })
1766		{
1767	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
1768	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
1767	>	final CompletableFuture<Item> f = new CompletableFuture<>();
1768	>	final CompletableFuture<Item> g = new CompletableFuture<>();
1769		final CFException ex = new CFException();
1770	<	final SubtractFunction r = new SubtractFunction(m);
1771	<
1772	<	(fFirst ? f : g).complete(v1);
1773	<	if (!createIncomplete)
1774	<	(!fFirst ? f : g).completeExceptionally(ex);
1775	<	final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1776	<	if (createIncomplete) {
1777	<	checkIncomplete(h);
1778	<	(!fFirst ? f : g).completeExceptionally(ex);
1779	<	}
1780	<
1781	<	checkCompletedWithWrappedCFException(h, ex);
1782	<	assertEquals(0, r.invocationCount);
1783	<	checkCompletedNormally(fFirst ? f : g, v1);
1784	<	checkCompletedWithWrappedCFException(!fFirst ? f : g, ex);
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 testThenCombine_actionFailed() {
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 (Integer v1 : new Integer[] { 1, null })
1809	<	for (Integer v2 : new Integer[] { 2, null })
1808	>	for (boolean failFirst : new boolean[] { true, false })
1809	>	for (Item v1 : new Item[] { one, null })
1810		{
1811	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
1812	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
1813	<	final FailingBiFunction r = new FailingBiFunction(m);
1814	<	final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1815	<
1816	<	if (fFirst) {
1817	<	f.complete(v1);
1818	<	g.complete(v2);
1819	<	} else {
1820	<	g.complete(v2);
1821	<	f.complete(v1);
1822	<	}
1823	<
1824	<	checkCompletedWithWrappedCFException(h);
1825	<	checkCompletedNormally(f, v1);
1826	<	checkCompletedNormally(g, v2);
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 testThenCombine_sourceCancelled() {
1847	>	public void testThenCombine_actionFailed() {
1848		for (ExecutionMode m : ExecutionMode.values())
1388	–	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1389	–	for (boolean createIncomplete : new boolean[] { true, false })
1849		for (boolean fFirst : new boolean[] { true, false })
1850	<	for (Integer v1 : new Integer[] { 1, null })
1850	>	for (Item v1 : new Item[] { one, null })
1851	>	for (Item v2 : new Item[] { two, null })
1852		{
1853	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
1854	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
1855	<	final SubtractFunction r = new SubtractFunction(m);
1856	<
1857	<	(fFirst ? f : g).complete(v1);
1858	<	if (!createIncomplete)
1859	<	assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
1860	<	final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1861	<	if (createIncomplete) {
1862	<	checkIncomplete(h);
1863	<	assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
1864	<	}
1865	<
1866	<	checkCompletedWithWrappedCancellationException(h);
1867	<	checkCancelled(!fFirst ? f : g);
1868	<	assertEquals(0, r.invocationCount);
1869	<	checkCompletedNormally(fFirst ? f : g, v1);
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		/**
#	Line 1415 | Line 1883 | public class CompletableFutureTest exten
1883		*/
1884		public void testThenAcceptBoth_normalCompletion() {
1885		for (ExecutionMode m : ExecutionMode.values())
1418	–	for (boolean createIncomplete : new boolean[] { true, false })
1886		for (boolean fFirst : new boolean[] { true, false })
1887	<	for (Integer v1 : new Integer[] { 1, null })
1888	<	for (Integer v2 : new Integer[] { 2, null })
1887	>	for (Item v1 : new Item[] { one, null })
1888	>	for (Item v2 : new Item[] { two, null })
1889		{
1890	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
1891	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
1892	<	final SubtractAction r = new SubtractAction(m);
1893	<
1894	<	if (fFirst) f.complete(v1); else g.complete(v2);
1895	<	if (!createIncomplete)
1896	<	if (!fFirst) f.complete(v1); else g.complete(v2);
1897	<	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1898	<	if (createIncomplete) {
1899	<	checkIncomplete(h);
1900	<	assertEquals(0, r.invocationCount);
1901	<	if (!fFirst) f.complete(v1); else g.complete(v2);
1902	<	}
1903	<
1904	<	checkCompletedNormally(h, null);
1905	<	assertEquals(subtract(v1, v2), r.value);
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		}}
#	Line 1444 | Line 1922 | public class CompletableFutureTest exten
1922		* thenAcceptBoth result completes exceptionally after exceptional
1923		* completion of either source
1924		*/
1925	<	public void testThenAcceptBoth_exceptionalCompletion() {
1925	>	public void testThenAcceptBoth_exceptionalCompletion() throws Throwable {
1926		for (ExecutionMode m : ExecutionMode.values())
1449	–	for (boolean createIncomplete : new boolean[] { true, false })
1927		for (boolean fFirst : new boolean[] { true, false })
1928	<	for (Integer v1 : new Integer[] { 1, null })
1928	>	for (boolean failFirst : new boolean[] { true, false })
1929	>	for (Item v1 : new Item[] { one, null })
1930		{
1931	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
1932	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
1931	>	final CompletableFuture<Item> f = new CompletableFuture<>();
1932	>	final CompletableFuture<Item> g = new CompletableFuture<>();
1933		final CFException ex = new CFException();
1934	<	final SubtractAction r = new SubtractAction(m);
1935	<
1936	<	(fFirst ? f : g).complete(v1);
1937	<	if (!createIncomplete)
1938	<	(!fFirst ? f : g).completeExceptionally(ex);
1939	<	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1940	<	if (createIncomplete) {
1941	<	checkIncomplete(h);
1942	<	(!fFirst ? f : g).completeExceptionally(ex);
1943	<	}
1944	<
1945	<	checkCompletedWithWrappedCFException(h, ex);
1946	<	assertEquals(0, r.invocationCount);
1947	<	checkCompletedNormally(fFirst ? f : g, v1);
1948	<	checkCompletedWithWrappedCFException(!fFirst ? f : g, ex);
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 testThenAcceptBoth_actionFailed() {
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 (Integer v1 : new Integer[] { 1, null })
1973	<	for (Integer v2 : new Integer[] { 2, null })
1972	>	for (boolean failFirst : new boolean[] { true, false })
1973	>	for (Item v1 : new Item[] { one, null })
1974		{
1975	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
1976	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
1977	<	final FailingBiConsumer r = new FailingBiConsumer(m);
1978	<	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1979	<
1980	<	if (fFirst) {
1981	<	f.complete(v1);
1982	<	g.complete(v2);
1983	<	} else {
1984	<	g.complete(v2);
1985	<	f.complete(v1);
1986	<	}
1987	<
1988	<	checkCompletedWithWrappedCFException(h);
1989	<	checkCompletedNormally(f, v1);
1990	<	checkCompletedNormally(g, v2);
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 testThenAcceptBoth_sourceCancelled() {
2011	>	public void testThenAcceptBoth_actionFailed() {
2012		for (ExecutionMode m : ExecutionMode.values())
1505	–	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1506	–	for (boolean createIncomplete : new boolean[] { true, false })
2013		for (boolean fFirst : new boolean[] { true, false })
2014	<	for (Integer v1 : new Integer[] { 1, null })
2014	>	for (Item v1 : new Item[] { one, null })
2015	>	for (Item v2 : new Item[] { two, null })
2016		{
2017	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
2018	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
2019	<	final SubtractAction r = new SubtractAction(m);
2020	<
2021	<	(fFirst ? f : g).complete(v1);
2022	<	if (!createIncomplete)
2023	<	assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
2024	<	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
2025	<	if (createIncomplete) {
2026	<	checkIncomplete(h);
2027	<	assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
2028	<	}
2029	<
2030	<	checkCompletedWithWrappedCancellationException(h);
2031	<	checkCancelled(!fFirst ? f : g);
2032	<	assertEquals(0, r.invocationCount);
2033	<	checkCompletedNormally(fFirst ? f : g, v1);
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		/**
#	Line 1532 | Line 2047 | public class CompletableFutureTest exten
2047		*/
2048		public void testRunAfterBoth_normalCompletion() {
2049		for (ExecutionMode m : ExecutionMode.values())
1535	–	for (boolean createIncomplete : new boolean[] { true, false })
2050		for (boolean fFirst : new boolean[] { true, false })
2051	<	for (Integer v1 : new Integer[] { 1, null })
2052	<	for (Integer v2 : new Integer[] { 2, null })
2051	>	for (Item v1 : new Item[] { one, null })
2052	>	for (Item v2 : new Item[] { two, null })
2053		{
2054	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
2055	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
2056	<	final Noop r = new Noop(m);
2057	<
2058	<	if (fFirst) f.complete(v1); else g.complete(v2);
2059	<	if (!createIncomplete)
2060	<	if (!fFirst) f.complete(v1); else g.complete(v2);
2061	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
2062	<	if (createIncomplete) {
2063	<	checkIncomplete(h);
2064	<	assertEquals(0, r.invocationCount);
2065	<	if (!fFirst) f.complete(v1); else g.complete(v2);
2066	<	}
2067	<
2068	<	checkCompletedNormally(h, null);
2069	<	assertEquals(1, r.invocationCount);
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		}}
#	Line 1561 | Line 2086 | public class CompletableFutureTest exten
2086		* runAfterBoth result completes exceptionally after exceptional
2087		* completion of either source
2088		*/
2089	<	public void testRunAfterBoth_exceptionalCompletion() {
2089	>	public void testRunAfterBoth_exceptionalCompletion() throws Throwable {
2090		for (ExecutionMode m : ExecutionMode.values())
1566	–	for (boolean createIncomplete : new boolean[] { true, false })
2091		for (boolean fFirst : new boolean[] { true, false })
2092	<	for (Integer v1 : new Integer[] { 1, null })
2092	>	for (boolean failFirst : new boolean[] { true, false })
2093	>	for (Item v1 : new Item[] { one, null })
2094		{
2095	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
2096	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
2095	>	final CompletableFuture<Item> f = new CompletableFuture<>();
2096	>	final CompletableFuture<Item> g = new CompletableFuture<>();
2097		final CFException ex = new CFException();
2098	<	final Noop r = new Noop(m);
2099	<
2100	<	(fFirst ? f : g).complete(v1);
2101	<	if (!createIncomplete)
2102	<	(!fFirst ? f : g).completeExceptionally(ex);
2103	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
2104	<	if (createIncomplete) {
2105	<	checkIncomplete(h);
2106	<	(!fFirst ? f : g).completeExceptionally(ex);
2107	<	}
2108	<
2109	<	checkCompletedWithWrappedCFException(h, ex);
2110	<	assertEquals(0, r.invocationCount);
2111	<	checkCompletedNormally(fFirst ? f : g, v1);
2112	<	checkCompletedWithWrappedCFException(!fFirst ? f : g, ex);
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 testRunAfterBoth_actionFailed() {
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 (Integer v1 : new Integer[] { 1, null })
2137	<	for (Integer v2 : new Integer[] { 2, null })
2136	>	for (boolean failFirst : new boolean[] { true, false })
2137	>	for (Item v1 : new Item[] { one, null })
2138		{
2139	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
2140	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
2141	<	final FailingRunnable r = new FailingRunnable(m);
2142	<
2143	<	CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r);
2144	<	if (fFirst) {
2145	<	f.complete(v1);
2146	<	g.complete(v2);
2147	<	} else {
2148	<	g.complete(v2);
2149	<	f.complete(v1);
2150	<	}
2151	<	CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r);
2152	<
2153	<	checkCompletedWithWrappedCFException(h1);
2154	<	checkCompletedWithWrappedCFException(h2);
2155	<	checkCompletedNormally(f, v1);
2156	<	checkCompletedNormally(g, v2);
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 testRunAfterBoth_sourceCancelled() {
2175	>	public void testRunAfterBoth_actionFailed() {
2176		for (ExecutionMode m : ExecutionMode.values())
1624	–	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1625	–	for (boolean createIncomplete : new boolean[] { true, false })
2177		for (boolean fFirst : new boolean[] { true, false })
2178	<	for (Integer v1 : new Integer[] { 1, null })
2178	>	for (Item v1 : new Item[] { one, null })
2179	>	for (Item v2 : new Item[] { two, null })
2180		{
2181	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
2182	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
2183	<	final Noop r = new Noop(m);
2184	<
2185	<
2186	<	(fFirst ? f : g).complete(v1);
2187	<	if (!createIncomplete)
2188	<	assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
2189	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
2190	<	if (createIncomplete) {
2191	<	checkIncomplete(h);
2192	<	assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
2193	<	}
2194	<
2195	<	checkCompletedWithWrappedCancellationException(h);
2196	<	checkCancelled(!fFirst ? f : g);
2197	<	assertEquals(0, r.invocationCount);
2198	<	checkCompletedNormally(fFirst ? f : g, v1);
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		/**
#	Line 1652 | Line 2211 | public class CompletableFutureTest exten
2211		*/
2212		public void testApplyToEither_normalCompletion() {
2213		for (ExecutionMode m : ExecutionMode.values())
2214	<	for (boolean createIncomplete : new boolean[] { true, false })
2215	<	for (boolean fFirst : new boolean[] { true, false })
1657	<	for (Integer v1 : new Integer[] { 1, null })
1658	<	for (Integer v2 : new Integer[] { 2, null })
2214	>	for (Item v1 : new Item[] { one, null })
2215	>	for (Item v2 : new Item[] { two, null })
2216		{
2217	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
2218	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
2219	<	final IncFunction r = new IncFunction(m);
2220	<
2221	<	if (!createIncomplete)
2222	<	if (fFirst) f.complete(v1); else g.complete(v2);
2223	<	final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2224	<	if (createIncomplete) {
2225	<	checkIncomplete(h);
2226	<	assertEquals(0, r.invocationCount);
2227	<	if (fFirst) f.complete(v1); else g.complete(v2);
2228	<	}
2229	<	checkCompletedNormally(h, inc(fFirst ? v1 : v2));
2230	<	if (!fFirst) f.complete(v1); else g.complete(v2);
2231	<
2232	<	checkCompletedNormally(f, v1);
2233	<	checkCompletedNormally(g, v2);
2234	<	checkCompletedNormally(h, inc(fFirst ? v1 : v2));
2235	<	}}
1679	<
1680	<	public void testApplyToEither_normalCompletionBothAvailable() {
1681	<	for (ExecutionMode m : ExecutionMode.values())
1682	<	for (boolean fFirst : new boolean[] { true, false })
1683	<	for (Integer v1 : new Integer[] { 1, null })
1684	<	for (Integer v2 : new Integer[] { 2, null })
1685	<	{
1686	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
1687	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
1688	<	final IncFunction r = new IncFunction(m);
1689	<
1690	<	if (fFirst) {
1691	<	f.complete(v1);
1692	<	g.complete(v2);
1693	<	} else {
1694	<	g.complete(v2);
1695	<	f.complete(v1);
1696	<	}
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	<	final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
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	<
2250	<	// unspecified behavior
2251	<	assertTrue(Objects.equals(h.join(), inc(v1)) ||
2252	<	Objects.equals(h.join(), inc(v2)));
2253	<	assertEquals(1, r.invocationCount);
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 testApplyToEither_exceptionalCompletion1() {
2260	>	public void testApplyToEither_exceptionalCompletion() {
2261		for (ExecutionMode m : ExecutionMode.values())
2262	<	for (boolean createIncomplete : new boolean[] { true, false })
1716	<	for (boolean fFirst : new boolean[] { true, false })
1717	<	for (Integer v1 : new Integer[] { 1, null })
2262	>	for (Item v1 : new Item[] { one, null })
2263		{
2264	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
2265	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
2264	>	final CompletableFuture<Item> f = new CompletableFuture<>();
2265	>	final CompletableFuture<Item> g = new CompletableFuture<>();
2266		final CFException ex = new CFException();
2267	<	final IncFunction r = new IncFunction(m);
2267	>	final IncFunction[] rs = new IncFunction[6];
2268	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2269
2270	<	if (!createIncomplete) (fFirst ? f : g).completeExceptionally(ex);
2271	<	final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2272	<	if (createIncomplete) {
2273	<	checkIncomplete(h);
2274	<	assertEquals(0, r.invocationCount);
2275	<	(fFirst ? f : g).completeExceptionally(ex);
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	<	checkCompletedWithWrappedCFException(h, ex);
2304	<	(!fFirst ? f : g).complete(v1);
2305	<
2306	<	assertEquals(0, r.invocationCount);
2307	<	checkCompletedNormally(!fFirst ? f : g, v1);
2308	<	checkCompletedWithWrappedCFException(fFirst ? f : g, ex);
2309	<	checkCompletedWithWrappedCFException(h, ex);
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())
1743	–	for (boolean reverseArgs : new boolean[] { true, false })
2315		for (boolean fFirst : new boolean[] { true, false })
2316	<	for (Integer v1 : new Integer[] { 1, null })
2316	>	for (Item v1 : new Item[] { one, null })
2317		{
2318	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
2319	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
2320	<	final IncFunction r1 = new IncFunction(m);
2321	<	final IncFunction r2 = new IncFunction(m);
2322	<	final CFException ex = new CFException();
2323	<	final CompletableFuture<Integer> j = (reverseArgs ? g : f);
2324	<	final CompletableFuture<Integer> k = (reverseArgs ? f : g);
2325	<	final CompletableFuture<Integer> h1 = m.applyToEither(j, k, r1);
2326	<	if (fFirst) {
2327	<	f.complete(v1);
2328	<	g.completeExceptionally(ex);
2329	<	} else {
1759	<	g.completeExceptionally(ex);
1760	<	f.complete(v1);
1761	<	}
1762	<	final CompletableFuture<Integer> h2 = m.applyToEither(j, k, r2);
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	<	// unspecified behavior
2331	>	// unspecified behavior - both source completions available
2332		try {
2333	<	assertEquals(inc(v1), h1.join());
2334	<	assertEquals(1, r1.invocationCount);
2333	>	mustEqual(inc(v1), h0.join());
2334	>	rs[0].assertValue(inc(v1));
2335		} catch (CompletionException ok) {
2336	<	checkCompletedWithWrappedCFException(h1, ex);
2337	<	assertEquals(0, r1.invocationCount);
2336	>	checkCompletedWithWrappedException(h0, ex);
2337	>	rs[0].assertNotInvoked();
2338		}
1772	–
2339		try {
2340	<	assertEquals(inc(v1), h2.join());
2341	<	assertEquals(1, r2.invocationCount);
2340	>	mustEqual(inc(v1), h1.join());
2341	>	rs[1].assertValue(inc(v1));
2342		} catch (CompletionException ok) {
2343	<	checkCompletedWithWrappedCFException(h2, ex);
2344	<	assertEquals(0, r2.invocationCount);
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
1781	–	checkCompletedWithWrappedCFException(g, ex);
1782	–	checkCompletedNormally(f, v1);
1783	–	}}
1784	–
1785	–	/**
1786	–	* applyToEither result completes exceptionally if action does
1787	–	*/
1788	–	public void testApplyToEither_actionFailed1() {
1789	–	for (ExecutionMode m : ExecutionMode.values())
1790	–	for (Integer v1 : new Integer[] { 1, null })
1791	–	for (Integer v2 : new Integer[] { 2, null })
1792	–	{
1793	–	final CompletableFuture<Integer> f = new CompletableFuture<>();
1794	–	final CompletableFuture<Integer> g = new CompletableFuture<>();
1795	–	final FailingFunction r = new FailingFunction(m);
1796	–	final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
1797	–
1798	–	f.complete(v1);
1799	–	checkCompletedWithWrappedCFException(h);
1800	–	g.complete(v2);
1801	–	checkCompletedNormally(f, v1);
1802	–	checkCompletedNormally(g, v2);
1803	–	}}
1804	–
1805	–	public void testApplyToEither_actionFailed2() {
1806	–	for (ExecutionMode m : ExecutionMode.values())
1807	–	for (Integer v1 : new Integer[] { 1, null })
1808	–	for (Integer v2 : new Integer[] { 2, null })
1809	–	{
1810	–	final CompletableFuture<Integer> f = new CompletableFuture<>();
1811	–	final CompletableFuture<Integer> g = new CompletableFuture<>();
1812	–	final FailingFunction r = new FailingFunction(m);
1813	–	final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
1814	–
1815	–	g.complete(v2);
1816	–	checkCompletedWithWrappedCFException(h);
1817	–	f.complete(v1);
2361		checkCompletedNormally(f, v1);
2362	<	checkCompletedNormally(g, v2);
2362	>	checkCompletedExceptionally(g, ex);
2363		}}
2364
2365		/**
2366		* applyToEither result completes exceptionally if either source cancelled
2367		*/
2368	<	public void testApplyToEither_sourceCancelled1() {
2368	>	public void testApplyToEither_sourceCancelled() {
2369		for (ExecutionMode m : ExecutionMode.values())
2370		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2371	<	for (boolean createIncomplete : new boolean[] { true, false })
1829	<	for (boolean fFirst : new boolean[] { true, false })
1830	<	for (Integer v1 : new Integer[] { 1, null })
2371	>	for (Item v1 : new Item[] { one, null })
2372		{
2373	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
2374	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
2375	<	final IncFunction r = new IncFunction(m);
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	<	if (!createIncomplete) assertTrue((fFirst ? f : g).cancel(mayInterruptIfRunning));
2394	<	final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2395	<	if (createIncomplete) {
2396	<	checkIncomplete(h);
2397	<	assertEquals(0, r.invocationCount);
2398	<	assertTrue((fFirst ? f : g).cancel(mayInterruptIfRunning));
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	<	checkCompletedWithWrappedCancellationException(h);
2412	<	(!fFirst ? f : g).complete(v1);
2413	<
2414	<	assertEquals(0, r.invocationCount);
2415	<	checkCompletedNormally(!fFirst ? f : g, v1);
2416	<	checkCancelled(fFirst ? f : g);
2417	<	checkCompletedWithWrappedCancellationException(h);
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 })
1856	–	for (boolean reverseArgs : new boolean[] { true, false })
2423		for (boolean fFirst : new boolean[] { true, false })
2424	<	for (Integer v1 : new Integer[] { 1, null })
2424	>	for (Item v1 : new Item[] { one, null })
2425		{
2426	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
2427	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
2428	<	final IncFunction r1 = new IncFunction(m);
2429	<	final IncFunction r2 = new IncFunction(m);
2430	<	final CFException ex = new CFException();
2431	<	final CompletableFuture<Integer> j = (reverseArgs ? g : f);
2432	<	final CompletableFuture<Integer> k = (reverseArgs ? f : g);
2433	<
2434	<	final CompletableFuture<Integer> h1 = m.applyToEither(j, k, r1);
2435	<	if (fFirst) {
2436	<	f.complete(v1);
1871	<	assertTrue(g.cancel(mayInterruptIfRunning));
1872	<	} else {
1873	<	assertTrue(g.cancel(mayInterruptIfRunning));
1874	<	f.complete(v1);
1875	<	}
1876	<	final CompletableFuture<Integer> h2 = m.applyToEither(j, k, r2);
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	<	// unspecified behavior
2438	>	// unspecified behavior - both source completions available
2439		try {
2440	<	assertEquals(inc(v1), h1.join());
2441	<	assertEquals(1, r1.invocationCount);
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	<	assertEquals(0, r1.invocationCount);
2451	>	rs[1].assertNotInvoked();
2452		}
1886	–
2453		try {
2454	<	assertEquals(inc(v1), h2.join());
2455	<	assertEquals(1, r2.invocationCount);
2454	>	mustEqual(inc(v1), h2.join());
2455	>	rs[2].assertValue(inc(v1));
2456		} catch (CompletionException ok) {
2457		checkCompletedWithWrappedCancellationException(h2);
2458	<	assertEquals(0, r2.invocationCount);
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
1895	–	checkCancelled(g);
2468		checkCompletedNormally(f, v1);
2469	+	checkCancelled(g);
2470		}}
2471
2472		/**
2473	<	* acceptEither result completes normally after normal completion
1901	<	* of either source
2473	>	* applyToEither result completes exceptionally if action does
2474		*/
2475	<	public void testAcceptEither_normalCompletion1() {
2475	>	public void testApplyToEither_actionFailed() {
2476		for (ExecutionMode m : ExecutionMode.values())
2477	<	for (Integer v1 : new Integer[] { 1, null })
2478	<	for (Integer v2 : new Integer[] { 2, null })
2477	>	for (Item v1 : new Item[] { one, null })
2478	>	for (Item v2 : new Item[] { two, null })
2479		{
2480	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
2481	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
2482	<	final IncAction r = new IncAction();
2483	<	final CompletableFuture<Void> h = m.acceptEither(f, g, r);
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	<	checkCompletedNormally(h, null);
2489	<	assertEquals(inc(v1), r.value);
2490	<	g.complete(v2);
2491	<
2492	<	checkCompletedNormally(f, v1);
2493	<	checkCompletedNormally(g, v2);
2494	<	checkCompletedNormally(h, null);
1921	<	}}
1922	<
1923	<	public void testAcceptEither_normalCompletion2() {
1924	<	for (ExecutionMode m : ExecutionMode.values())
1925	<	for (Integer v1 : new Integer[] { 1, null })
1926	<	for (Integer v2 : new Integer[] { 2, null })
1927	<	{
1928	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
1929	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
1930	<	final IncAction r = new IncAction();
1931	<	final CompletableFuture<Void> h = m.acceptEither(f, g, r);
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	<	checkCompletedNormally(h, null);
2498	<	assertEquals(inc(v2), r.value);
2499	<	f.complete(v1);
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);
1940	–	checkCompletedNormally(h, null);
2511		}}
2512
2513	<	public void testAcceptEither_normalCompletion3() {
2513	>	/**
2514	>	* acceptEither result completes normally after normal completion
2515	>	* of either source
2516	>	*/
2517	>	public void testAcceptEither_normalCompletion() {
2518		for (ExecutionMode m : ExecutionMode.values())
2519	<	for (Integer v1 : new Integer[] { 1, null })
2520	<	for (Integer v2 : new Integer[] { 2, null })
2519	>	for (Item v1 : new Item[] { one, null })
2520	>	for (Item v2 : new Item[] { two, null })
2521		{
2522	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
2523	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
2524	<	final IncAction r = new IncAction();
2525	<
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);
1954	–	final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2545
2546	<	checkCompletedNormally(h, null);
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	<
2559	<	// unspecified behavior
2560	<	assertTrue(Objects.equals(r.value, inc(v1)) ||
2561	<	Objects.equals(r.value, inc(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		* acceptEither result completes exceptionally after exceptional
2567		* completion of either source
2568		*/
2569	<	public void testAcceptEither_exceptionalCompletion1() {
2569	>	public void testAcceptEither_exceptionalCompletion() {
2570		for (ExecutionMode m : ExecutionMode.values())
2571	<	for (Integer v1 : new Integer[] { 1, null })
2571	>	for (Item v1 : new Item[] { one, null })
2572		{
2573	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
2574	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
1975	<	final IncAction r = new IncAction();
1976	<	final CompletableFuture<Void> h = m.acceptEither(f, g, r);
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	<	checkCompletedWithWrappedCFException(h, 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	<	assertEquals(0, r.invocationCount);
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	>	checkCompletedExceptionally(f, ex);
2614		checkCompletedNormally(g, v1);
2615	<	checkCompletedWithWrappedCFException(f, ex);
2616	<	checkCompletedWithWrappedCFException(h, ex);
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 (Integer v1 : new Integer[] { 1, null })
2626	<	{
1993	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
1994	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
1995	<	final IncAction r = new IncAction();
1996	<	final CompletableFuture<Void> h = m.acceptEither(f, g, r);
1997	<	final CFException ex = new CFException();
1998	<
1999	<	g.completeExceptionally(ex);
2000	<	checkCompletedWithWrappedCFException(h, ex);
2001	<	f.complete(v1);
2002	<
2003	<	assertEquals(0, r.invocationCount);
2004	<	checkCompletedNormally(f, v1);
2005	<	checkCompletedWithWrappedCFException(g, ex);
2006	<	checkCompletedWithWrappedCFException(h, ex);
2007	<	}}
2008	<
2009	<	public void testAcceptEither_exceptionalCompletion3() {
2010	<	for (ExecutionMode m : ExecutionMode.values())
2011	<	for (Integer v1 : new Integer[] { 1, null })
2625	>	for (boolean fFirst : new boolean[] { true, false })
2626	>	for (Item v1 : new Item[] { one, null })
2627		{
2628	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
2629	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
2015	<	final IncAction r = new IncAction();
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	<	g.completeExceptionally(ex);
2635	<	f.complete(v1);
2636	<	final CompletableFuture<Void> h = m.acceptEither(f, g, r);
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	<	// unspecified behavior
2023	<	Integer v;
2641	>	// unspecified behavior - both source completions available
2642		try {
2643	<	assertNull(h.join());
2644	<	assertEquals(1, r.invocationCount);
2027	<	assertEquals(inc(v1), r.value);
2643	>	assertNull(h0.join());
2644	>	rs[0].assertValue(v1);
2645		} catch (CompletionException ok) {
2646	<	checkCompletedWithWrappedCFException(h, ex);
2647	<	assertEquals(0, r.invocationCount);
2646	>	checkCompletedWithWrappedException(h0, ex);
2647	>	rs[0].assertNotInvoked();
2648		}
2032	–
2033	–	checkCompletedWithWrappedCFException(g, ex);
2034	–	checkCompletedNormally(f, v1);
2035	–	}}
2036	–
2037	–	public void testAcceptEither_exceptionalCompletion4() {
2038	–	for (ExecutionMode m : ExecutionMode.values())
2039	–	for (Integer v1 : new Integer[] { 1, null })
2040	–	{
2041	–	final CompletableFuture<Integer> f = new CompletableFuture<>();
2042	–	final CompletableFuture<Integer> g = new CompletableFuture<>();
2043	–	final IncAction r = new IncAction();
2044	–	final CFException ex = new CFException();
2045	–
2046	–	f.completeExceptionally(ex);
2047	–	g.complete(v1);
2048	–	final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2049	–
2050	–	// unspecified behavior
2051	–	Integer v;
2649		try {
2650	<	assertNull(h.join());
2651	<	assertEquals(1, r.invocationCount);
2055	<	assertEquals(inc(v1), r.value);
2650	>	assertNull(h1.join());
2651	>	rs[1].assertValue(v1);
2652		} catch (CompletionException ok) {
2653	<	checkCompletedWithWrappedCFException(h, ex);
2654	<	assertEquals(0, r.invocationCount);
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
2061	–	checkCompletedWithWrappedCFException(f, ex);
2062	–	checkCompletedNormally(g, v1);
2063	–	}}
2064	–
2065	–	/**
2066	–	* acceptEither result completes exceptionally if action does
2067	–	*/
2068	–	public void testAcceptEither_actionFailed1() {
2069	–	for (ExecutionMode m : ExecutionMode.values())
2070	–	for (Integer v1 : new Integer[] { 1, null })
2071	–	for (Integer v2 : new Integer[] { 2, null })
2072	–	{
2073	–	final CompletableFuture<Integer> f = new CompletableFuture<>();
2074	–	final CompletableFuture<Integer> g = new CompletableFuture<>();
2075	–	final FailingConsumer r = new FailingConsumer(m);
2076	–	final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2077	–
2078	–	f.complete(v1);
2079	–	checkCompletedWithWrappedCFException(h);
2080	–	g.complete(v2);
2081	–	checkCompletedNormally(f, v1);
2082	–	checkCompletedNormally(g, v2);
2083	–	}}
2084	–
2085	–	public void testAcceptEither_actionFailed2() {
2086	–	for (ExecutionMode m : ExecutionMode.values())
2087	–	for (Integer v1 : new Integer[] { 1, null })
2088	–	for (Integer v2 : new Integer[] { 2, null })
2089	–	{
2090	–	final CompletableFuture<Integer> f = new CompletableFuture<>();
2091	–	final CompletableFuture<Integer> g = new CompletableFuture<>();
2092	–	final FailingConsumer r = new FailingConsumer(m);
2093	–	final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2094	–
2095	–	g.complete(v2);
2096	–	checkCompletedWithWrappedCFException(h);
2097	–	f.complete(v1);
2671		checkCompletedNormally(f, v1);
2672	<	checkCompletedNormally(g, v2);
2672	>	checkCompletedExceptionally(g, ex);
2673		}}
2674
2675		/**
2676		* acceptEither result completes exceptionally if either source cancelled
2677		*/
2678	<	public void testAcceptEither_sourceCancelled1() {
2678	>	public void testAcceptEither_sourceCancelled() {
2679		for (ExecutionMode m : ExecutionMode.values())
2680		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2681	<	for (Integer v1 : new Integer[] { 1, null })
2681	>	for (Item v1 : new Item[] { one, null })
2682		{
2683	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
2684	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
2685	<	final IncAction r = new IncAction();
2686	<	final CompletableFuture<Void> h = m.acceptEither(f, g, r);
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
2115	–	assertTrue(f.cancel(mayInterruptIfRunning));
2116	–	checkCompletedWithWrappedCancellationException(h);
2702		g.complete(v1);
2703
2704	<	checkCancelled(f);
2705	<	assertEquals(0, r.invocationCount);
2706	<	checkCompletedNormally(g, v1);
2122	<	checkCompletedWithWrappedCancellationException(h);
2123	<	}}
2124	<
2125	<	public void testAcceptEither_sourceCancelled2() {
2126	<	for (ExecutionMode m : ExecutionMode.values())
2127	<	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2128	<	for (Integer v1 : new Integer[] { 1, null })
2129	<	{
2130	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
2131	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
2132	<	final IncAction r = new IncAction();
2133	<	final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2134	<
2135	<	assertTrue(g.cancel(mayInterruptIfRunning));
2136	<	checkCompletedWithWrappedCancellationException(h);
2137	<	f.complete(v1);
2138	<
2139	<	checkCancelled(g);
2140	<	assertEquals(0, r.invocationCount);
2141	<	checkCompletedNormally(f, v1);
2142	<	checkCompletedWithWrappedCancellationException(h);
2143	<	}}
2144	<
2145	<	public void testAcceptEither_sourceCancelled3() {
2146	<	for (ExecutionMode m : ExecutionMode.values())
2147	<	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2148	<	for (Integer v1 : new Integer[] { 1, null })
2149	<	{
2150	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
2151	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
2152	<	final IncAction r = new IncAction();
2153	<
2154	<	assertTrue(g.cancel(mayInterruptIfRunning));
2155	<	f.complete(v1);
2156	<	final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2157	<
2158	<	// unspecified behavior
2159	<	Integer v;
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(h.join());
2709	<	assertEquals(1, r.invocationCount);
2163	<	assertEquals(inc(v1), r.value);
2708	>	assertNull(h4.join());
2709	>	rs[4].assertValue(v1);
2710		} catch (CompletionException ok) {
2711	<	checkCompletedWithWrappedCancellationException(h);
2712	<	assertEquals(0, r.invocationCount);
2711	>	checkCompletedWithWrappedCancellationException(h4);
2712	>	rs[4].assertNotInvoked();
2713		}
2168	–
2169	–	checkCancelled(g);
2170	–	checkCompletedNormally(f, v1);
2171	–	}}
2172	–
2173	–	public void testAcceptEither_sourceCancelled4() {
2174	–	for (ExecutionMode m : ExecutionMode.values())
2175	–	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2176	–	for (Integer v1 : new Integer[] { 1, null })
2177	–	{
2178	–	final CompletableFuture<Integer> f = new CompletableFuture<>();
2179	–	final CompletableFuture<Integer> g = new CompletableFuture<>();
2180	–	final IncAction r = new IncAction();
2181	–
2182	–	assertTrue(f.cancel(mayInterruptIfRunning));
2183	–	g.complete(v1);
2184	–	final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2185	–
2186	–	// unspecified behavior
2187	–	Integer v;
2714		try {
2715	<	assertNull(h.join());
2716	<	assertEquals(1, r.invocationCount);
2191	<	assertEquals(inc(v1), r.value);
2715	>	assertNull(h5.join());
2716	>	rs[5].assertValue(v1);
2717		} catch (CompletionException ok) {
2718	<	checkCompletedWithWrappedCancellationException(h);
2719	<	assertEquals(0, r.invocationCount);
2718	>	checkCompletedWithWrappedCancellationException(h5);
2719	>	rs[5].assertNotInvoked();
2720		}
2721
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	<	* runAfterEither result completes normally after normal completion
2203	<	* of either source
2732	>	* acceptEither result completes exceptionally if action does
2733		*/
2734	<	public void testRunAfterEither_normalCompletion1() {
2734	>	public void testAcceptEither_actionFailed() {
2735		for (ExecutionMode m : ExecutionMode.values())
2736	<	for (Integer v1 : new Integer[] { 1, null })
2737	<	for (Integer v2 : new Integer[] { 2, null })
2736	>	for (Item v1 : new Item[] { one, null })
2737	>	for (Item v2 : new Item[] { two, null })
2738		{
2739	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
2740	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
2741	<	final Noop r = new Noop(m);
2742	<	final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
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	<	checkCompletedNormally(h, null);
2748	<	assertEquals(1, r.invocationCount);
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);
2222	–	checkCompletedNormally(h, null);
2223	–	assertEquals(1, r.invocationCount);
2770		}}
2771
2772	<	public void testRunAfterEither_normalCompletion2() {
2772	>	/**
2773	>	* runAfterEither result completes normally after normal completion
2774	>	* of either source
2775	>	*/
2776	>	public void testRunAfterEither_normalCompletion() {
2777		for (ExecutionMode m : ExecutionMode.values())
2778	<	for (Integer v1 : new Integer[] { 1, null })
2779	<	for (Integer v2 : new Integer[] { 2, null })
2780	<	{
2781	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
2782	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
2783	<	final Noop r = new Noop(m);
2784	<	final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2785	<
2786	<	g.complete(v2);
2787	<	checkCompletedNormally(h, null);
2788	<	assertEquals(1, r.invocationCount);
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
2241	–	checkCompletedNormally(f, v1);
2242	–	checkCompletedNormally(g, v2);
2243	–	checkCompletedNormally(h, null);
2244	–	assertEquals(1, r.invocationCount);
2245	–	}}
2246	–
2247	–	public void testRunAfterEither_normalCompletion3() {
2248	–	for (ExecutionMode m : ExecutionMode.values())
2249	–	for (Integer v1 : new Integer[] { 1, null })
2250	–	for (Integer v2 : new Integer[] { 2, null })
2251	–	{
2252	–	final CompletableFuture<Integer> f = new CompletableFuture<>();
2253	–	final CompletableFuture<Integer> g = new CompletableFuture<>();
2254	–	final Noop r = new Noop(m);
2255	–
2256	–	f.complete(v1);
2809		g.complete(v2);
2258	–	final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2810
2811	<	checkCompletedNormally(h, null);
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	<	assertEquals(1, r.invocationCount);
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		* runAfterEither result completes exceptionally after exceptional
2827		* completion of either source
2828		*/
2829	<	public void testRunAfterEither_exceptionalCompletion1() {
2829	>	public void testRunAfterEither_exceptionalCompletion() {
2830		for (ExecutionMode m : ExecutionMode.values())
2831	<	for (Integer v1 : new Integer[] { 1, null })
2831	>	for (Item v1 : new Item[] { one, null })
2832		{
2833	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
2834	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
2276	<	final Noop r = new Noop(m);
2277	<	final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
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	<	f.completeExceptionally(ex);
2840	<	checkCompletedWithWrappedCFException(h, ex);
2841	<	g.complete(v1);
2839	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2840	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2841	>	checkIncomplete(h0);
2842	>	checkIncomplete(h1);
2843	>	rs[0].assertNotInvoked();
2844	>	rs[1].assertNotInvoked();
2845	>	assertTrue(f.completeExceptionally(ex));
2846	>	checkCompletedWithWrappedException(h0, ex);
2847	>	checkCompletedWithWrappedException(h1, ex);
2848	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2849	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2850	>	checkCompletedWithWrappedException(h2, ex);
2851	>	checkCompletedWithWrappedException(h3, ex);
2852	>
2853	>	assertTrue(g.complete(v1));
2854	>
2855	>	// unspecified behavior - both source completions available
2856	>	final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2857	>	final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2858	>	try {
2859	>	assertNull(h4.join());
2860	>	rs[4].assertInvoked();
2861	>	} catch (CompletionException ok) {
2862	>	checkCompletedWithWrappedException(h4, ex);
2863	>	rs[4].assertNotInvoked();
2864	>	}
2865	>	try {
2866	>	assertNull(h5.join());
2867	>	rs[5].assertInvoked();
2868	>	} catch (CompletionException ok) {
2869	>	checkCompletedWithWrappedException(h5, ex);
2870	>	rs[5].assertNotInvoked();
2871	>	}
2872
2873	<	assertEquals(0, r.invocationCount);
2873	>	checkCompletedExceptionally(f, ex);
2874		checkCompletedNormally(g, v1);
2875	<	checkCompletedWithWrappedCFException(f, ex);
2876	<	checkCompletedWithWrappedCFException(h, ex);
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 (Integer v1 : new Integer[] { 1, null })
2886	<	{
2294	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
2295	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
2296	<	final Noop r = new Noop(m);
2297	<	final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2298	<	final CFException ex = new CFException();
2299	<
2300	<	g.completeExceptionally(ex);
2301	<	checkCompletedWithWrappedCFException(h, ex);
2302	<	f.complete(v1);
2303	<
2304	<	assertEquals(0, r.invocationCount);
2305	<	checkCompletedNormally(f, v1);
2306	<	checkCompletedWithWrappedCFException(g, ex);
2307	<	checkCompletedWithWrappedCFException(h, ex);
2308	<	}}
2309	<
2310	<	public void testRunAfterEither_exceptionalCompletion3() {
2311	<	for (ExecutionMode m : ExecutionMode.values())
2312	<	for (Integer v1 : new Integer[] { 1, null })
2885	>	for (boolean fFirst : new boolean[] { true, false })
2886	>	for (Item v1 : new Item[] { one, null })
2887		{
2888	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
2889	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
2316	<	final Noop r = new Noop(m);
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	<	g.completeExceptionally(ex);
2895	<	f.complete(v1);
2896	<	final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
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	<	// unspecified behavior
2324	<	Integer v;
2901	>	// unspecified behavior - both source completions available
2902		try {
2903	<	assertNull(h.join());
2904	<	assertEquals(1, r.invocationCount);
2903	>	assertNull(h0.join());
2904	>	rs[0].assertInvoked();
2905		} catch (CompletionException ok) {
2906	<	checkCompletedWithWrappedCFException(h, ex);
2907	<	assertEquals(0, r.invocationCount);
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		}
2930
2333	–	checkCompletedWithWrappedCFException(g, ex);
2931		checkCompletedNormally(f, v1);
2932	+	checkCompletedExceptionally(g, ex);
2933		}}
2934
2935	<	public void testRunAfterEither_exceptionalCompletion4() {
2935	>	/**
2936	>	* runAfterEither result completes exceptionally if either source cancelled
2937	>	*/
2938	>	public void testRunAfterEither_sourceCancelled() {
2939		for (ExecutionMode m : ExecutionMode.values())
2940	<	for (Integer v1 : new Integer[] { 1, null })
2940	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2941	>	for (Item v1 : new Item[] { one, null })
2942		{
2943	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
2944	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
2945	<	final Noop r = new Noop(m);
2946	<	final CFException ex = new CFException();
2947	<
2948	<	f.completeExceptionally(ex);
2949	<	g.complete(v1);
2950	<	final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2951	<
2952	<	// unspecified behavior
2953	<	Integer v;
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(h.join());
2976	<	assertEquals(1, r.invocationCount);
2975	>	assertNull(h5.join());
2976	>	rs[5].assertInvoked();
2977		} catch (CompletionException ok) {
2978	<	checkCompletedWithWrappedCFException(h, ex);
2979	<	assertEquals(0, r.invocationCount);
2978	>	checkCompletedWithWrappedCancellationException(h5);
2979	>	rs[5].assertNotInvoked();
2980		}
2981
2982	<	checkCompletedWithWrappedCFException(f, ex);
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		* runAfterEither result completes exceptionally if action does
2993		*/
2994	<	public void testRunAfterEither_actionFailed1() {
2994	>	public void testRunAfterEither_actionFailed() {
2995		for (ExecutionMode m : ExecutionMode.values())
2996	<	for (Integer v1 : new Integer[] { 1, null })
2997	<	for (Integer v2 : new Integer[] { 2, null })
2996	>	for (Item v1 : new Item[] { one, null })
2997	>	for (Item v2 : new Item[] { two, null })
2998		{
2999	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
3000	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
3001	<	final FailingRunnable r = new FailingRunnable(m);
3002	<	final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
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
2377	–	f.complete(v1);
2378	–	checkCompletedWithWrappedCFException(h);
2379	–	g.complete(v2);
3020		checkCompletedNormally(f, v1);
3021		checkCompletedNormally(g, v2);
3022	+	for (int i = 0; i < 6; i++) rs[i].assertInvoked();
3023		}}
3024
3025	<	public void testRunAfterEither_actionFailed2() {
3025	>	/**
3026	>	* thenCompose result completes normally after normal completion of source
3027	>	*/
3028	>	public void testThenCompose_normalCompletion() {
3029		for (ExecutionMode m : ExecutionMode.values())
3030	<	for (Integer v1 : new Integer[] { 1, null })
3031	<	for (Integer v2 : new Integer[] { 2, null })
3030	>	for (boolean createIncomplete : new boolean[] { true, false })
3031	>	for (Item v1 : new Item[] { one, null })
3032		{
3033	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
3034	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
3035	<	final FailingRunnable r = new FailingRunnable(m);
3036	<	final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
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	<	g.complete(v2);
2395	<	checkCompletedWithWrappedCFException(h);
2396	<	f.complete(v1);
3039	>	checkCompletedNormally(g, inc(v1));
3040		checkCompletedNormally(f, v1);
3041	<	checkCompletedNormally(g, v2);
3041	>	r.assertValue(v1);
3042		}}
3043
3044		/**
3045	<	* runAfterEither result completes exceptionally if either source cancelled
3045	>	* thenCompose result completes exceptionally after exceptional
3046	>	* completion of source
3047		*/
3048	<	public void testRunAfterEither_sourceCancelled1() {
3048	>	public void testThenCompose_exceptionalCompletion() {
3049		for (ExecutionMode m : ExecutionMode.values())
3050	<	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2407	<	for (Integer v1 : new Integer[] { 1, null })
3050	>	for (boolean createIncomplete : new boolean[] { true, false })
3051		{
3052	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
3053	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
3054	<	final Noop r = new Noop(m);
3055	<	final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
3056	<
3057	<	assertTrue(f.cancel(mayInterruptIfRunning));
2415	<	checkCompletedWithWrappedCancellationException(h);
2416	<	g.complete(v1);
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	<	checkCancelled(f);
3060	<	assertEquals(0, r.invocationCount);
3061	<	checkCompletedNormally(g, v1);
2421	<	checkCompletedWithWrappedCancellationException(h);
3059	>	checkCompletedWithWrappedException(g, ex);
3060	>	checkCompletedExceptionally(f, ex);
3061	>	r.assertNotInvoked();
3062		}}
3063
3064	<	public void testRunAfterEither_sourceCancelled2() {
3064	>	/**
3065	>	* thenCompose result completes exceptionally if action does
3066	>	*/
3067	>	public void testThenCompose_actionFailed() {
3068		for (ExecutionMode m : ExecutionMode.values())
3069	<	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3070	<	for (Integer v1 : new Integer[] { 1, null })
3069	>	for (boolean createIncomplete : new boolean[] { true, false })
3070	>	for (Item v1 : new Item[] { one, null })
3071		{
3072	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
3073	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
3074	<	final Noop r = new Noop(m);
3075	<	final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
3076	<
3077	<	assertTrue(g.cancel(mayInterruptIfRunning));
2435	<	checkCompletedWithWrappedCancellationException(h);
2436	<	f.complete(v1);
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	<	checkCancelled(g);
2439	<	assertEquals(0, r.invocationCount);
3079	>	checkCompletedWithWrappedException(g, r.ex);
3080		checkCompletedNormally(f, v1);
2441	–	checkCompletedWithWrappedCancellationException(h);
3081		}}
3082
3083	<	public void testRunAfterEither_sourceCancelled3() {
3083	>	/**
3084	>	* thenCompose result completes exceptionally if source cancelled
3085	>	*/
3086	>	public void testThenCompose_sourceCancelled() {
3087		for (ExecutionMode m : ExecutionMode.values())
3088	+	for (boolean createIncomplete : new boolean[] { true, false })
3089		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2447	–	for (Integer v1 : new Integer[] { 1, null })
3090		{
3091	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
3092	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
3093	<	final Noop r = new Noop(m);
3094	<
3095	<	assertTrue(g.cancel(mayInterruptIfRunning));
3096	<	f.complete(v1);
3097	<	final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2456	<
2457	<	// unspecified behavior
2458	<	Integer v;
2459	<	try {
2460	<	assertNull(h.join());
2461	<	assertEquals(1, r.invocationCount);
2462	<	} catch (CompletionException ok) {
2463	<	checkCompletedWithWrappedCancellationException(h);
2464	<	assertEquals(0, r.invocationCount);
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
3100	<	checkCancelled(g);
3101	<	checkCompletedNormally(f, v1);
3100	>	checkCompletedWithWrappedCancellationException(g);
3101	>	checkCancelled(f);
3102		}}
3103
3104	<	public void testRunAfterEither_sourceCancelled4() {
3104	>	/**
3105	>	* thenCompose result completes exceptionally if the result of the action does
3106	>	*/
3107	>	public void testThenCompose_actionReturnsFailingFuture() {
3108		for (ExecutionMode m : ExecutionMode.values())
3109	<	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3110	<	for (Integer v1 : new Integer[] { 1, null })
3109	>	for (int order = 0; order < 6; order++)
3110	>	for (Item v1 : new Item[] { one, null })
3111		{
3112	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
3113	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
3114	<	final Noop r = new Noop(m);
3115	<
3116	<	assertTrue(f.cancel(mayInterruptIfRunning));
3117	<	g.complete(v1);
3118	<	final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
3119	<
3120	<	// unspecified behavior
3121	<	Integer v;
3122	<	try {
3123	<	assertNull(h.join());
3124	<	assertEquals(1, r.invocationCount);
3125	<	} catch (CompletionException ok) {
3126	<	checkCompletedWithWrappedCancellationException(h);
3127	<	assertEquals(0, r.invocationCount);
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	<	checkCancelled(f);
3152	<	checkCompletedNormally(g, v1);
3151	>	checkCompletedExceptionally(g, ex);
3152	>	checkCompletedWithWrappedException(h, ex);
3153	>	checkCompletedNormally(f, v1);
3154		}}
3155
3156		/**
3157	<	* thenCompose result completes normally after normal completion of source
3157	>	* exceptionallyCompose result completes normally after normal
3158	>	* completion of source
3159		*/
3160	<	public void testThenCompose_normalCompletion() {
3160	>	public void testExceptionallyCompose_normalCompletion() {
3161		for (ExecutionMode m : ExecutionMode.values())
3162		for (boolean createIncomplete : new boolean[] { true, false })
3163	<	for (Integer v1 : new Integer[] { 1, null })
3163	>	for (Item v1 : new Item[] { one, null })
3164		{
3165	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
3166	<	final CompletableFutureInc r = new CompletableFutureInc(m);
3167	<	if (!createIncomplete) f.complete(v1);
3168	<	final CompletableFuture<Integer> g = m.thenCompose(f, r);
3169	<	if (createIncomplete) f.complete(v1);
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
2512	–	checkCompletedNormally(g, inc(v1));
3172		checkCompletedNormally(f, v1);
3173	<	assertEquals(1, r.invocationCount);
3173	>	checkCompletedNormally(g, v1);
3174	>	r.assertNotInvoked();
3175		}}
3176
3177		/**
3178	<	* thenCompose result completes exceptionally after exceptional
3178	>	* exceptionallyCompose result completes normally after exceptional
3179		* completion of source
3180		*/
3181	<	public void testThenCompose_exceptionalCompletion() {
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 CompletableFutureInc r = new CompletableFutureInc(m);
3187	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
3186	>	final ExceptionalCompletableFutureFunction r =
3187	>	new ExceptionalCompletableFutureFunction(m);
3188	>	final CompletableFuture<Item> f = new CompletableFuture<>();
3189		if (!createIncomplete) f.completeExceptionally(ex);
3190	<	final CompletableFuture<Integer> g = m.thenCompose(f, r);
3190	>	final CompletableFuture<Item> g = m.exceptionallyCompose(f, r);
3191		if (createIncomplete) f.completeExceptionally(ex);
3192
3193	<	checkCompletedWithWrappedCFException(g, ex);
3194	<	checkCompletedWithWrappedCFException(f, ex);
3195	<	assertEquals(0, r.invocationCount);
3193	>	checkCompletedExceptionally(f, ex);
3194	>	checkCompletedNormally(g, r.value);
3195	>	r.assertInvoked();
3196		}}
3197
3198		/**
3199	<	* thenCompose result completes exceptionally if action does
3199	>	* exceptionallyCompose completes exceptionally on exception if action does
3200		*/
3201	<	public void testThenCompose_actionFailed() {
3201	>	public void testExceptionallyCompose_actionFailed() {
3202		for (ExecutionMode m : ExecutionMode.values())
3203		for (boolean createIncomplete : new boolean[] { true, false })
2543	–	for (Integer v1 : new Integer[] { 1, null })
3204		{
3205	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
3206	<	final FailingCompletableFutureFunction r
3207	<	= new FailingCompletableFutureFunction(m);
3208	<	if (!createIncomplete) f.complete(v1);
3209	<	final CompletableFuture<Integer> g = m.thenCompose(f, r);
3210	<	if (createIncomplete) f.complete(v1);
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	<	checkCompletedWithWrappedCFException(g);
3214	<	checkCompletedNormally(f, v1);
3213	>	checkCompletedExceptionally(f, ex);
3214	>	checkCompletedWithWrappedException(g, r.ex);
3215	>	r.assertInvoked();
3216		}}
3217
3218		/**
3219	<	* thenCompose result completes exceptionally if source cancelled
3219	>	* exceptionallyCompose result completes exceptionally if the
3220	>	* result of the action does
3221		*/
3222	<	public void testThenCompose_sourceCancelled() {
3222	>	public void testExceptionallyCompose_actionReturnsFailingFuture() {
3223		for (ExecutionMode m : ExecutionMode.values())
3224	<	for (boolean createIncomplete : new boolean[] { true, false })
2562	<	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3224	>	for (int order = 0; order < 6; order++)
3225		{
3226	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
3227	<	final CompletableFutureInc r = new CompletableFutureInc(m);
3228	<	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
3229	<	final CompletableFuture<Integer> g = m.thenCompose(f, r);
3230	<	if (createIncomplete) {
3231	<	checkIncomplete(g);
3232	<	assertTrue(f.cancel(mayInterruptIfRunning));
3233	<	}
3234	<
3235	<	checkCompletedWithWrappedCancellationException(g);
3236	<	checkCancelled(f);
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	>	checkCompletedExceptionally(g, ex);
3267	>	checkCompletedWithWrappedException(h, ex);
3268	>	checkCompletedExceptionally(f, ex0);
3269		}}
3270
3271		// other static methods
#	Line 2590 | Line 3284 | public class CompletableFutureTest exten
3284		* when all components complete normally
3285		*/
3286		public void testAllOf_normal() throws Exception {
3287	<	for (int k = 1; k < 20; ++k) {
3288	<	CompletableFuture<Integer>[] fs = (CompletableFuture<Integer>[]) new CompletableFuture[k];
3289	<	for (int i = 0; i < k; ++i)
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	>	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 = 0; i < k; ++i) {
3312	>	for (int i = k - 1; i >= 0; i--) {
3313		checkIncomplete(f);
3314		checkIncomplete(CompletableFuture.allOf(fs));
3315		fs[i].complete(one);
#	Line 2605 | Line 3319 | public class CompletableFutureTest exten
3319		}
3320		}
3321
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		* anyOf(no component futures) returns an incomplete future
3350		*/
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	<	}
3356	>
3357	>	f.complete(v1);
3358	>	checkCompletedNormally(f, v1);
3359	>	}}
3360
3361		/**
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	<	CompletableFuture[] fs = new CompletableFuture[k];
3368	<	for (int i = 0; i < k; ++i)
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(one);
3376	<	checkCompletedNormally(f, one);
3377	<	checkCompletedNormally(CompletableFuture.anyOf(fs), one);
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	>	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		}
#	Line 2636 | Line 3401 | public class CompletableFutureTest exten
3401		* anyOf result completes exceptionally when any component does.
3402		*/
3403		public void testAnyOf_exceptional() throws Exception {
3404	<	for (int k = 0; k < 10; ++k) {
3405	<	CompletableFuture[] fs = new CompletableFuture[k];
3406	<	for (int i = 0; i < k; ++i)
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	>	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 = 0; i < k; ++i) {
3436	<	fs[i].completeExceptionally(new CFException());
3437	<	checkCompletedWithWrappedCFException(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		}
#	Line 2653 | Line 3443 | public class CompletableFutureTest exten
3443		/**
3444		* Completion methods throw NullPointerException with null arguments
3445		*/
3446	+	@SuppressWarnings("FutureReturnValueIgnored")
3447		public void testNPE() {
3448	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3449	<	CompletableFuture<Integer> g = new CompletableFuture<>();
3450	<	CompletableFuture<Integer> nullFuture = (CompletableFuture<Integer>)null;
2660	<	CompletableFuture<?> h;
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	<	Runnable[] throwingActions = {
3453	>	assertThrows(
3454	>	NullPointerException.class,
3455	>
3456		() -> CompletableFuture.supplyAsync(null),
3457		() -> CompletableFuture.supplyAsync(null, exec),
3458	<	() -> CompletableFuture.supplyAsync(supplyOne, null),
3458	>	() -> CompletableFuture.supplyAsync(new ItemSupplier(ExecutionMode.SYNC, fortytwo), null),
3459
3460		() -> CompletableFuture.runAsync(null),
3461		() -> CompletableFuture.runAsync(null, exec),
#	Line 2673 | Line 3465 | public class CompletableFutureTest exten
3465
3466		() -> f.thenApply(null),
3467		() -> f.thenApplyAsync(null),
3468	<	() -> f.thenApplyAsync((x) -> x, 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),
3473	>	() -> f.thenAcceptAsync(x -> {} , null),
3474		() -> f.thenAcceptAsync(null, exec),
3475
3476		() -> f.thenRun(null),
#	Line 2713 | Line 3505 | public class CompletableFutureTest exten
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),
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),
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),
#	Line 2754 | Line 3546 | public class CompletableFutureTest exten
3546		() -> CompletableFuture.anyOf(null, f),
3547
3548		() -> f.obtrudeException(null),
2757	–	};
3549
3550	<	assertThrows(NullPointerException.class, throwingActions);
3551	<	assertEquals(0, exec.count.get());
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	+	{
3608	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3609	+
3610	+	fs.add(complete.thenCombineAsync(incomplete, (x, y) -> x, e));
3611	+	fs.add(incomplete.thenCombineAsync(complete, (x, y) -> x, e));
3612	+
3613	+	fs.add(complete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3614	+	fs.add(incomplete.thenAcceptBothAsync(complete, (x, y) -> {}, e));
3615	+
3616	+	fs.add(complete.runAfterBothAsync(incomplete, () -> {}, e));
3617	+	fs.add(incomplete.runAfterBothAsync(complete, () -> {}, e));
3618	+
3619	+	for (CompletableFuture<?> future : fs)
3620	+	checkIncomplete(future);
3621	+	futures.addAll(fs);
3622	+	}
3623	+
3624	+	{
3625	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3626	+
3627	+	fs.add(complete.applyToEitherAsync(incomplete, z -> z, e));
3628	+	fs.add(incomplete.applyToEitherAsync(complete, z -> z, e));
3629	+
3630	+	fs.add(complete.acceptEitherAsync(incomplete, z -> {}, e));
3631	+	fs.add(incomplete.acceptEitherAsync(complete, z -> {}, e));
3632	+
3633	+	fs.add(complete.runAfterEitherAsync(incomplete, () -> {}, e));
3634	+	fs.add(incomplete.runAfterEitherAsync(complete, () -> {}, e));
3635	+
3636	+	for (CompletableFuture<?> future : fs)
3637	+	checkCompletedWithWrappedException(future, e.ex);
3638	+	futures.addAll(fs);
3639	+	}
3640	+
3641	+	incomplete.complete(v);
3642	+
3643	+	for (CompletableFuture<?> future : futures)
3644	+	checkCompletedWithWrappedException(future, e.ex);
3645	+
3646	+	mustEqual(futures.size(), e.count.get());
3647	+	}}
3648	+
3649	+	/**
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 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	+	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	+	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	+	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	+	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	+	fs.add(complete.thenCombineAsync(incomplete, (x, y) -> x, e));
3680	+	fs.add(incomplete.thenCombineAsync(complete, (x, y) -> x, e));
3681	+
3682	+	fs.add(complete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3683	+	fs.add(incomplete.thenAcceptBothAsync(complete, (x, y) -> {}, e));
3684	+
3685	+	fs.add(complete.runAfterBothAsync(incomplete, () -> {}, e));
3686	+	fs.add(incomplete.runAfterBothAsync(complete, () -> {}, e));
3687	+
3688	+	for (CompletableFuture<?> future : fs)
3689	+	checkIncomplete(future);
3690	+
3691	+	for (CompletableFuture<?> future : fs)
3692	+	future.complete(null);
3693	+
3694	+	incomplete.complete(v);
3695	+
3696	+	for (CompletableFuture<?> future : fs)
3697	+	checkCompletedNormally(future, null);
3698	+
3699	+	mustEqual(0, e.count.get());
3700	+	}}
3701	+
3702	+	/**
3703		* toCompletableFuture returns this CompletableFuture.
3704		*/
3705		public void testToCompletableFuture() {
3706	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3706	>	CompletableFuture<Item> f = new CompletableFuture<>();
3707		assertSame(f, f.toCompletableFuture());
3708		}
3709
3710	+	// jdk9
3711	+
3712		/**
3713	<	* whenComplete action executes on normal completion, propagating
2773	<	* source result.
3713	>	* newIncompleteFuture returns an incomplete CompletableFuture
3714		*/
3715	<	public void testWhenComplete_normalCompletion1() {
3716	<	for (ExecutionMode m : ExecutionMode.values())
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	>	f.complete(v1);
3723	>	checkCompletedNormally(f, v1);
3724	>	checkIncomplete(g);
3725	>	g.complete(v1);
3726	>	checkCompletedNormally(g, v1);
3727	>	assertSame(g.getClass(), CompletableFuture.class);
3728	>	}}
3729	>
3730	>	/**
3731	>	* completedStage returns a completed CompletionStage
3732	>	*/
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	>	* defaultExecutor by default returns the commonPool if
3744	>	* it supports more than one thread.
3745	>	*/
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	>	* failedFuture returns a CompletableFuture completed
3758	>	* exceptionally with the given Exception
3759	>	*/
3760	>	public void testFailedFuture() {
3761	>	CFException ex = new CFException();
3762	>	CompletableFuture<Item> f = CompletableFuture.failedFuture(ex);
3763	>	checkCompletedExceptionally(f, ex);
3764	>	}
3765	>
3766	>	/**
3767	>	* copy returns a CompletableFuture that is completed normally,
3768	>	* with the same value, when source is.
3769	>	*/
3770	>	public void testCopy_normalCompletion() {
3771		for (boolean createIncomplete : new boolean[] { true, false })
3772	<	for (Integer v1 : new Integer[] { 1, null })
3772	>	for (Item v1 : new Item[] { one, null })
3773		{
3774	<	final AtomicInteger a = new AtomicInteger(0);
3775	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
3776	<	if (!createIncomplete) f.complete(v1);
3777	<	final CompletableFuture<Integer> g = m.whenComplete
3778	<	(f,
3779	<	(Integer x, Throwable t) -> {
3780	<	threadAssertSame(x, v1);
3781	<	threadAssertNull(t);
3782	<	a.getAndIncrement();
3783	<	});
3784	<	if (createIncomplete) f.complete(v1);
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	>	* 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	>	* minimalCompletionStage returns a CompletableFuture that is
3821	>	* completed normally, with the same value, when source is.
3822	>	*/
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	>	checkCompletedNormally(f, one);
3832	>	mustEqual(x.get(), 1);
3833	>	assertNull(r.get());
3834	>	}
3835	>
3836	>	/**
3837	>	* minimalCompletionStage returns a CompletableFuture that is
3838	>	* completed exceptionally when source is.
3839	>	*/
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	>	* failedStage returns a CompletionStage completed
3856	>	* exceptionally with the given Exception
3857	>	*/
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	>	* completeAsync completes with value of given supplier
3870	>	*/
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	>	* completeAsync completes exceptionally if given supplier throws
3882	>	*/
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	+	* completeAsync with given executor completes with value of given supplier
3896	+	*/
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	+	* completeAsync with given executor completes exceptionally if
3910	+	* given supplier throws
3911	+	*/
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	<	assertEquals(1, a.get());
3991	>	checkCompletedNormally(g, v1);
3992	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3993		}}
3994
3995		/**
3996	<	* whenComplete action executes on exceptional completion, propagating
2799	<	* source result.
3996	>	* delayedExecutor returns an executor that delays submission
3997		*/
3998	<	public void testWhenComplete_exceptionalCompletion() {
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	>	checkCompletedNormally(f, v);
4031	>
4032	>	checkIncomplete(g);
4033	>	assertTrue(g.cancel(true));
4034	>	}
4035	>
4036	>	//--- tests of implementation details; not part of official tck ---
4037	>
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	>	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	>	public void testExceptionPropagationReusesResultObject() {
4061	>	if (!testImplementationDetails) return;
4062		for (ExecutionMode m : ExecutionMode.values())
2803	–	for (boolean createIncomplete : new boolean[] { true, false })
2804	–	for (Integer v1 : new Integer[] { 1, null })
4063		{
2806	–	final AtomicInteger a = new AtomicInteger(0);
4064		final CFException ex = new CFException();
4065	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
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	>	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	>	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	>	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	>	* Minimal completion stages throw UOE for most non-CompletionStage methods
4152	>	*/
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	>	* minimalStage.toCompletableFuture() returns a CompletableFuture that
4219	>	* is completed normally, with the same value, when source is.
4220	>	*/
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	<	final CompletableFuture<Integer> g = m.whenComplete
4250	<	(f,
4251	<	(Integer x, Throwable t) -> {
4252	<	threadAssertNull(x);
4253	<	threadAssertSame(t, ex);
4254	<	a.getAndIncrement();
4255	<	});
4256	<	if (createIncomplete) f.completeExceptionally(ex);
2818	<	checkCompletedWithWrappedCFException(f, ex);
2819	<	checkCompletedWithWrappedCFException(g, ex);
2820	<	assertEquals(1, a.get());
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	<	* whenComplete action executes on cancelled source, propagating
2825	<	* CancellationException.
4260	>	* minimalStage.toCompletableFuture() gives mutable CompletableFuture
4261		*/
4262	<	public void testWhenComplete_sourceCancelled() {
4263	<	for (ExecutionMode m : ExecutionMode.values())
4264	<	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
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	>	* minimalStage.toCompletableFuture().join() awaits completion
4276	>	*/
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	<	final AtomicInteger a = new AtomicInteger(0);
4282	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
4283	<	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
4284	<	final CompletableFuture<Integer> g = m.whenComplete
4285	<	(f,
4286	<	(Integer x, Throwable t) -> {
4287	<	threadAssertNull(x);
4288	<	threadAssertTrue(t instanceof CancellationException);
4289	<	a.getAndIncrement();
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	>	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	>	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	>	static class PlusFuture<T> extends CompletableFuture<T> {
4390	>	AtomicReference<Throwable> firstFailure = new AtomicReference<>(null);
4391	>	}
4392	>
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	>	* CompletableFuture is an additive monad - sort of.
4430	>	* https://en.wikipedia.org/wiki/Monad_(functional_programming)#Additive_monads
4431	>	*/
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	>	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	>	/** 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.cancel(mayInterruptIfRunning));
4845	>	if (createIncomplete) assertTrue(f.complete(v1));
4846
4847	<	//try { g.join(); } catch (Throwable t) { throw new Error(t); }
4848	<	checkCompletedWithWrappedCancellationException(g);
4849	<	checkCancelled(f);
2847	<	assertEquals(1, a.get());
4847	>	checkCompletedNormally(g.toCompletableFuture(), v1);
4848	>	checkCompletedNormally(f, v1);
4849	>	mustEqual(0, ran.get());
4850		}}
4851
4852		/**
4853	<	* If a whenComplete action throws an exception when triggered by
4854	<	* a normal completion, it completes exceptionally
4853	>	* default-implemented exceptionallyAsync action completes with
4854	>	* function value on source exception
4855		*/
4856	<	public void testWhenComplete_actionFailed() {
4856	>	public void testDefaultExceptionallyAsync_exceptionalCompletion() {
4857		for (boolean createIncomplete : new boolean[] { true, false })
4858	<	for (ExecutionMode m : ExecutionMode.values())
2857	<	for (Integer v1 : new Integer[] { 1, null })
4858	>	for (Item v1 : new Item[] { one, null })
4859		{
4860	<	final AtomicInteger a = new AtomicInteger(0);
4860	>	final AtomicInteger ran = new AtomicInteger(0);
4861		final CFException ex = new CFException();
4862	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
4863	<	if (!createIncomplete) f.complete(v1);
4864	<	final CompletableFuture<Integer> g = m.whenComplete
4865	<	(f,
4866	<	(Integer x, Throwable t) -> {
4867	<	threadAssertSame(x, v1);
4868	<	threadAssertNull(t);
4869	<	a.getAndIncrement();
4870	<	throw ex;
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.complete(v1);
4873	<	checkCompletedNormally(f, v1);
4874	<	checkCompletedWithWrappedCFException(g, ex);
4875	<	assertEquals(1, a.get());
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	<	* If a whenComplete action throws an exception when triggered by
4881	<	* a source completion that also throws an exception, the source
4882	<	* exception takes precedence.
4880	>	* Under default implementation, if an "exceptionally action"
4881	>	* throws an exception, it completes exceptionally with that
4882	>	* exception
4883		*/
4884	<	public void testWhenComplete_actionFailedSourceFailed() {
4884	>	public void testDefaultExceptionallyAsync_exceptionalCompletionActionFailed() {
4885		for (boolean createIncomplete : new boolean[] { true, false })
2884	–	for (ExecutionMode m : ExecutionMode.values())
2885	–	for (Integer v1 : new Integer[] { 1, null })
4886		{
4887	<	final AtomicInteger a = new AtomicInteger(0);
4887	>	final AtomicInteger ran = new AtomicInteger(0);
4888		final CFException ex1 = new CFException();
4889		final CFException ex2 = new CFException();
4890	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
4891	<
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 CompletableFuture<Integer> g = m.whenComplete
4895	<	(f,
4896	<	(Integer x, Throwable t) -> {
4897	<	threadAssertSame(t, ex1);
2897	<	threadAssertNull(x);
2898	<	a.getAndIncrement();
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	<	checkCompletedWithWrappedCFException(f, ex1);
4903	<	checkCompletedWithWrappedCFException(g, ex1);
4904	<	assertEquals(1, a.get());
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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