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

Comparing jsr166/src/test/tck/CompletableFutureTest.java (file contents):
Revision 1.68 by jsr166, Fri Jun 6 19:35:54 2014 UTC vs.
Revision 1.142 by dl, Fri Apr 1 23:18:00 2016 UTC

#	Line 5 | Line 5
5		* http://creativecommons.org/publicdomain/zero/1.0/
6		*/
7
8	<	import junit.framework.*;
8	>	import static java.util.concurrent.TimeUnit.MILLISECONDS;
9	>	import static java.util.concurrent.TimeUnit.SECONDS;
10	>	import static java.util.concurrent.CompletableFuture.completedFuture;
11	>	import static java.util.concurrent.CompletableFuture.failedFuture;
12	>
13	>	import java.lang.reflect.Method;
14	>	import java.lang.reflect.Modifier;
15	>
16	>	import java.util.stream.Collectors;
17	>	import java.util.stream.Stream;
18	>
19	>	import java.util.ArrayList;
20	>	import java.util.Arrays;
21	>	import java.util.List;
22	>	import java.util.Objects;
23	>	import java.util.Set;
24		import java.util.concurrent.Callable;
10	–	import java.util.concurrent.Executor;
11	–	import java.util.concurrent.ExecutorService;
12	–	import java.util.concurrent.Executors;
25		import java.util.concurrent.CancellationException;
14	–	import java.util.concurrent.CountDownLatch;
15	–	import java.util.concurrent.ExecutionException;
16	–	import java.util.concurrent.Future;
26		import java.util.concurrent.CompletableFuture;
27		import java.util.concurrent.CompletionException;
28		import java.util.concurrent.CompletionStage;
29	+	import java.util.concurrent.ExecutionException;
30	+	import java.util.concurrent.Executor;
31		import java.util.concurrent.ForkJoinPool;
32		import java.util.concurrent.ForkJoinTask;
33		import java.util.concurrent.TimeoutException;
34	+	import java.util.concurrent.TimeUnit;
35		import java.util.concurrent.atomic.AtomicInteger;
36	<	import static java.util.concurrent.TimeUnit.MILLISECONDS;
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.AssertionFailedError;
45	+	import junit.framework.Test;
46	+	import junit.framework.TestSuite;
47
48		public class CompletableFutureTest extends JSR166TestCase {
49
50		public static void main(String[] args) {
51	<	junit.textui.TestRunner.run(suite());
51	>	main(suite(), args);
52		}
53		public static Test suite() {
54		return new TestSuite(CompletableFutureTest.class);
#	Line 44 | Line 59 | public class CompletableFutureTest exten
59		void checkIncomplete(CompletableFuture<?> f) {
60		assertFalse(f.isDone());
61		assertFalse(f.isCancelled());
62	<	assertTrue(f.toString().contains("[Not completed]"));
62	>	assertTrue(f.toString().contains("Not completed"));
63		try {
64		assertNull(f.getNow(null));
65		} catch (Throwable fail) { threadUnexpectedException(fail); }
#	Line 57 | Line 72 | public class CompletableFutureTest exten
72		}
73
74		<T> void checkCompletedNormally(CompletableFuture<T> f, T value) {
75	<	try {
76	<	assertEquals(value, f.get(LONG_DELAY_MS, MILLISECONDS));
62	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
75	>	checkTimedGet(f, value);
76	>
77		try {
78		assertEquals(value, f.join());
79		} catch (Throwable fail) { threadUnexpectedException(fail); }
#	Line 75 | Line 89 | public class CompletableFutureTest exten
89		assertTrue(f.toString().contains("[Completed normally]"));
90		}
91
92	<	void checkCompletedWithWrappedCFException(CompletableFuture<?> f) {
93	<	try {
94	<	f.get(LONG_DELAY_MS, MILLISECONDS);
95	<	shouldThrow();
96	<	} catch (ExecutionException success) {
97	<	assertTrue(success.getCause() instanceof CFException);
98	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
99	<	try {
100	<	f.join();
101	<	shouldThrow();
102	<	} catch (CompletionException success) {
103	<	assertTrue(success.getCause() instanceof CFException);
104	<	}
105	<	try {
106	<	f.getNow(null);
107	<	shouldThrow();
108	<	} catch (CompletionException success) {
95	<	assertTrue(success.getCause() instanceof CFException);
92	>	/**
93	>	* Returns the "raw" internal exceptional completion of f,
94	>	* without any additional wrapping with CompletionException.
95	>	*/
96	>	<U> Throwable exceptionalCompletion(CompletableFuture<U> f) {
97	>	// handle (and whenComplete) can distinguish between "direct"
98	>	// and "wrapped" exceptional completion
99	>	return f.handle((U u, Throwable t) -> t).join();
100	>	}
101	>
102	>	void checkCompletedExceptionally(CompletableFuture<?> f,
103	>	boolean wrapped,
104	>	Consumer<Throwable> checker) {
105	>	Throwable cause = exceptionalCompletion(f);
106	>	if (wrapped) {
107	>	assertTrue(cause instanceof CompletionException);
108	>	cause = cause.getCause();
109		}
110	<	try {
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]"));
106	<	}
110	>	checker.accept(cause);
111
112	<	void checkCompletedWithWrappedCFException(CompletableFuture<?> f,
109	<	CFException ex) {
112	>	long startTime = System.nanoTime();
113		try {
114		f.get(LONG_DELAY_MS, MILLISECONDS);
115		shouldThrow();
116		} catch (ExecutionException success) {
117	<	assertSame(ex, success.getCause());
117	>	assertSame(cause, success.getCause());
118		} catch (Throwable fail) { threadUnexpectedException(fail); }
119	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
120	+
121		try {
122		f.join();
123		shouldThrow();
124		} catch (CompletionException success) {
125	<	assertSame(ex, success.getCause());
126	<	}
125	>	assertSame(cause, success.getCause());
126	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
127	>
128		try {
129		f.getNow(null);
130		shouldThrow();
131		} catch (CompletionException success) {
132	<	assertSame(ex, success.getCause());
133	<	}
132	>	assertSame(cause, success.getCause());
133	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
134	>
135		try {
136		f.get();
137		shouldThrow();
138		} catch (ExecutionException success) {
139	<	assertSame(ex, success.getCause());
139	>	assertSame(cause, success.getCause());
140		} catch (Throwable fail) { threadUnexpectedException(fail); }
141	<	assertTrue(f.isDone());
141	>
142		assertFalse(f.isCancelled());
143	+	assertTrue(f.isDone());
144	+	assertTrue(f.isCompletedExceptionally());
145		assertTrue(f.toString().contains("[Completed exceptionally]"));
146		}
147
148	+	void checkCompletedWithWrappedCFException(CompletableFuture<?> f) {
149	+	checkCompletedExceptionally(f, true,
150	+	(t) -> assertTrue(t instanceof CFException));
151	+	}
152	+
153	+	void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) {
154	+	checkCompletedExceptionally(f, true,
155	+	(t) -> assertTrue(t instanceof CancellationException));
156	+	}
157	+
158	+	void checkCompletedWithTimeoutException(CompletableFuture<?> f) {
159	+	checkCompletedExceptionally(f, false,
160	+	(t) -> assertTrue(t instanceof TimeoutException));
161	+	}
162	+
163	+	void checkCompletedWithWrappedException(CompletableFuture<?> f,
164	+	Throwable ex) {
165	+	checkCompletedExceptionally(f, true, (t) -> assertSame(t, ex));
166	+	}
167	+
168	+	void checkCompletedExceptionally(CompletableFuture<?> f, Throwable ex) {
169	+	checkCompletedExceptionally(f, false, (t) -> assertSame(t, ex));
170	+	}
171	+
172		void checkCancelled(CompletableFuture<?> f) {
173	+	long startTime = System.nanoTime();
174		try {
175		f.get(LONG_DELAY_MS, MILLISECONDS);
176		shouldThrow();
177		} catch (CancellationException success) {
178		} catch (Throwable fail) { threadUnexpectedException(fail); }
179	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
180	+
181		try {
182		f.join();
183		shouldThrow();
#	Line 155 | Line 191 | public class CompletableFutureTest exten
191		shouldThrow();
192		} catch (CancellationException success) {
193		} 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	–	}
194
195	<	void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) {
196	<	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); }
195	>	assertTrue(exceptionalCompletion(f) instanceof CancellationException);
196	>
197		assertTrue(f.isDone());
190	–	assertFalse(f.isCancelled());
198		assertTrue(f.isCompletedExceptionally());
199	+	assertTrue(f.isCancelled());
200		assertTrue(f.toString().contains("[Completed exceptionally]"));
201		}
202
#	Line 206 | Line 214 | public class CompletableFutureTest exten
214		* isCancelled, join, get, and getNow
215		*/
216		public void testComplete() {
217	+	for (Integer v1 : new Integer[] { 1, null })
218	+	{
219		CompletableFuture<Integer> f = new CompletableFuture<>();
220		checkIncomplete(f);
221	<	f.complete(one);
222	<	checkCompletedNormally(f, one);
223	<	}
221	>	assertTrue(f.complete(v1));
222	>	assertFalse(f.complete(v1));
223	>	checkCompletedNormally(f, v1);
224	>	}}
225
226		/**
227		* completeExceptionally completes exceptionally, as indicated by
#	Line 218 | Line 229 | public class CompletableFutureTest exten
229		*/
230		public void testCompleteExceptionally() {
231		CompletableFuture<Integer> f = new CompletableFuture<>();
232	+	CFException ex = new CFException();
233		checkIncomplete(f);
234	<	f.completeExceptionally(new CFException());
235	<	checkCompletedWithWrappedCFException(f);
234	>	f.completeExceptionally(ex);
235	>	checkCompletedExceptionally(f, ex);
236		}
237
238		/**
#	Line 228 | Line 240 | public class CompletableFutureTest exten
240		* methods isDone, isCancelled, join, get, and getNow
241		*/
242		public void testCancel() {
243	+	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
244	+	{
245		CompletableFuture<Integer> f = new CompletableFuture<>();
246		checkIncomplete(f);
247	<	assertTrue(f.cancel(true));
247	>	assertTrue(f.cancel(mayInterruptIfRunning));
248	>	assertTrue(f.cancel(mayInterruptIfRunning));
249	>	assertTrue(f.cancel(!mayInterruptIfRunning));
250		checkCancelled(f);
251	<	}
251	>	}}
252
253		/**
254		* obtrudeValue forces completion with given value
#	Line 240 | Line 256 | public class CompletableFutureTest exten
256		public void testObtrudeValue() {
257		CompletableFuture<Integer> f = new CompletableFuture<>();
258		checkIncomplete(f);
259	<	f.complete(one);
259	>	assertTrue(f.complete(one));
260		checkCompletedNormally(f, one);
261		f.obtrudeValue(three);
262		checkCompletedNormally(f, three);
#	Line 261 | Line 277 | public class CompletableFutureTest exten
277		* obtrudeException forces completion with given exception
278		*/
279		public void testObtrudeException() {
280	<	CompletableFuture<Integer> f = new CompletableFuture<>();
281	<	checkIncomplete(f);
282	<	f.complete(one);
283	<	checkCompletedNormally(f, one);
284	<	f.obtrudeException(new CFException());
269	<	checkCompletedWithWrappedCFException(f);
280	>	for (Integer v1 : new Integer[] { 1, null })
281	>	{
282	>	CFException ex;
283	>	CompletableFuture<Integer> f;
284	>
285		f = new CompletableFuture<>();
286	<	f.obtrudeException(new CFException());
287	<	checkCompletedWithWrappedCFException(f);
286	>	assertTrue(f.complete(v1));
287	>	for (int i = 0; i < 2; i++) {
288	>	f.obtrudeException(ex = new CFException());
289	>	checkCompletedExceptionally(f, ex);
290	>	}
291	>
292		f = new CompletableFuture<>();
293	+	for (int i = 0; i < 2; i++) {
294	+	f.obtrudeException(ex = new CFException());
295	+	checkCompletedExceptionally(f, ex);
296	+	}
297	+
298	+	f = new CompletableFuture<>();
299	+	f.completeExceptionally(ex = new CFException());
300	+	f.obtrudeValue(v1);
301	+	checkCompletedNormally(f, v1);
302	+	f.obtrudeException(ex = new CFException());
303	+	checkCompletedExceptionally(f, ex);
304		f.completeExceptionally(new CFException());
305	<	f.obtrudeValue(four);
306	<	checkCompletedNormally(f, four);
307	<	f.obtrudeException(new CFException());
308	<	checkCompletedWithWrappedCFException(f);
279	<	}
305	>	checkCompletedExceptionally(f, ex);
306	>	assertFalse(f.complete(v1));
307	>	checkCompletedExceptionally(f, ex);
308	>	}}
309
310		/**
311		* getNumberOfDependents returns number of dependent tasks
312		*/
313		public void testGetNumberOfDependents() {
314	+	for (ExecutionMode m : ExecutionMode.values())
315	+	for (Integer v1 : new Integer[] { 1, null })
316	+	{
317		CompletableFuture<Integer> f = new CompletableFuture<>();
318		assertEquals(0, f.getNumberOfDependents());
319	<	CompletableFuture g = f.thenRun(new Noop(ExecutionMode.DEFAULT));
319	>	final CompletableFuture<Void> g = m.thenRun(f, new Noop(m));
320		assertEquals(1, f.getNumberOfDependents());
321		assertEquals(0, g.getNumberOfDependents());
322	<	CompletableFuture h = f.thenRun(new Noop(ExecutionMode.DEFAULT));
322	>	final CompletableFuture<Void> h = m.thenRun(f, new Noop(m));
323		assertEquals(2, f.getNumberOfDependents());
324	<	f.complete(1);
324	>	assertEquals(0, h.getNumberOfDependents());
325	>	assertTrue(f.complete(v1));
326		checkCompletedNormally(g, null);
327	+	checkCompletedNormally(h, null);
328		assertEquals(0, f.getNumberOfDependents());
329		assertEquals(0, g.getNumberOfDependents());
330	<	}
330	>	assertEquals(0, h.getNumberOfDependents());
331	>	}}
332
333		/**
334		* toString indicates current completion state
#	Line 304 | Line 339 | public class CompletableFutureTest exten
339		f = new CompletableFuture<String>();
340		assertTrue(f.toString().contains("[Not completed]"));
341
342	<	f.complete("foo");
342	>	assertTrue(f.complete("foo"));
343		assertTrue(f.toString().contains("[Completed normally]"));
344
345		f = new CompletableFuture<String>();
346	<	f.completeExceptionally(new IndexOutOfBoundsException());
346	>	assertTrue(f.completeExceptionally(new IndexOutOfBoundsException()));
347		assertTrue(f.toString().contains("[Completed exceptionally]"));
348	+
349	+	for (boolean mayInterruptIfRunning : new boolean[] { true, false }) {
350	+	f = new CompletableFuture<String>();
351	+	assertTrue(f.cancel(mayInterruptIfRunning));
352	+	assertTrue(f.toString().contains("[Completed exceptionally]"));
353	+	}
354		}
355
356		/**
#	Line 477 | Line 518 | public class CompletableFutureTest exten
518		}
519		}
520
480	–
521		class CompletableFutureInc extends CheckedIntegerAction
522		implements Function<Integer, CompletableFuture<Integer>>
523		{
#	Line 486 | Line 526 | public class CompletableFutureTest exten
526		invoked();
527		value = x;
528		CompletableFuture<Integer> f = new CompletableFuture<>();
529	<	f.complete(inc(x));
529	>	assertTrue(f.complete(inc(x)));
530		return f;
531		}
532		}
#	Line 516 | Line 556 | public class CompletableFutureTest exten
556		}
557		}
558
559	+	static final boolean defaultExecutorIsCommonPool
560	+	= ForkJoinPool.getCommonPoolParallelism() > 1;
561	+
562		/**
563		* Permits the testing of parallel code for the 3 different
564		* execution modes without copy/pasting all the test methods.
565		*/
566		enum ExecutionMode {
567	<	DEFAULT {
567	>	SYNC {
568		public void checkExecutionMode() {
569		assertFalse(ThreadExecutor.startedCurrentThread());
570		assertNull(ForkJoinTask.getPool());
#	Line 597 | Line 640 | public class CompletableFutureTest exten
640
641		ASYNC {
642		public void checkExecutionMode() {
643	<	assertSame(ForkJoinPool.commonPool(),
644	<	ForkJoinTask.getPool());
643	>	// If tests are added that may run across different
644	>	// pools, this needs to be weakened to no-op.
645	>	ForkJoinPool p = ForkJoinTask.getPool();
646	>	assertTrue(p == null ||
647	>	(defaultExecutorIsCommonPool &&
648	>	p == ForkJoinPool.commonPool()));
649		}
650		public CompletableFuture<Void> runAsync(Runnable a) {
651		return CompletableFuture.runAsync(a);
#	Line 794 | Line 841 | public class CompletableFutureTest exten
841		{
842		final AtomicInteger a = new AtomicInteger(0);
843		final CompletableFuture<Integer> f = new CompletableFuture<>();
844	<	if (!createIncomplete) f.complete(v1);
844	>	if (!createIncomplete) assertTrue(f.complete(v1));
845		final CompletableFuture<Integer> g = f.exceptionally
846		((Throwable t) -> {
800	–	// Should not be called
847		a.getAndIncrement();
848	<	throw new AssertionError();
848	>	threadFail("should not be called");
849	>	return null;            // unreached
850		});
851	<	if (createIncomplete) f.complete(v1);
851	>	if (createIncomplete) assertTrue(f.complete(v1));
852
853		checkCompletedNormally(g, v1);
854		checkCompletedNormally(f, v1);
855		assertEquals(0, a.get());
856		}}
857
811	–
858		/**
859		* exceptionally action completes with function value on source
860		* exception
#	Line 823 | Line 869 | public class CompletableFutureTest exten
869		if (!createIncomplete) f.completeExceptionally(ex);
870		final CompletableFuture<Integer> g = f.exceptionally
871		((Throwable t) -> {
872	<	ExecutionMode.DEFAULT.checkExecutionMode();
872	>	ExecutionMode.SYNC.checkExecutionMode();
873		threadAssertSame(t, ex);
874		a.getAndIncrement();
875		return v1;
#	Line 834 | Line 880 | public class CompletableFutureTest exten
880		assertEquals(1, a.get());
881		}}
882
883	+	/**
884	+	* If an "exceptionally action" throws an exception, it completes
885	+	* exceptionally with that exception
886	+	*/
887		public void testExceptionally_exceptionalCompletionActionFailed() {
888		for (boolean createIncomplete : new boolean[] { true, false })
839	–	for (Integer v1 : new Integer[] { 1, null })
889		{
890		final AtomicInteger a = new AtomicInteger(0);
891		final CFException ex1 = new CFException();
#	Line 845 | Line 894 | public class CompletableFutureTest exten
894		if (!createIncomplete) f.completeExceptionally(ex1);
895		final CompletableFuture<Integer> g = f.exceptionally
896		((Throwable t) -> {
897	<	ExecutionMode.DEFAULT.checkExecutionMode();
897	>	ExecutionMode.SYNC.checkExecutionMode();
898	>	threadAssertSame(t, ex1);
899	>	a.getAndIncrement();
900	>	throw ex2;
901	>	});
902	>	if (createIncomplete) f.completeExceptionally(ex1);
903	>
904	>	checkCompletedWithWrappedException(g, ex2);
905	>	checkCompletedExceptionally(f, ex1);
906	>	assertEquals(1, a.get());
907	>	}}
908	>
909	>	/**
910	>	* whenComplete action executes on normal completion, propagating
911	>	* source result.
912	>	*/
913	>	public void testWhenComplete_normalCompletion() {
914	>	for (ExecutionMode m : ExecutionMode.values())
915	>	for (boolean createIncomplete : new boolean[] { true, false })
916	>	for (Integer v1 : new Integer[] { 1, null })
917	>	{
918	>	final AtomicInteger a = new AtomicInteger(0);
919	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
920	>	if (!createIncomplete) assertTrue(f.complete(v1));
921	>	final CompletableFuture<Integer> g = m.whenComplete
922	>	(f,
923	>	(Integer result, Throwable t) -> {
924	>	m.checkExecutionMode();
925	>	threadAssertSame(result, v1);
926	>	threadAssertNull(t);
927	>	a.getAndIncrement();
928	>	});
929	>	if (createIncomplete) assertTrue(f.complete(v1));
930	>
931	>	checkCompletedNormally(g, v1);
932	>	checkCompletedNormally(f, v1);
933	>	assertEquals(1, a.get());
934	>	}}
935	>
936	>	/**
937	>	* whenComplete action executes on exceptional completion, propagating
938	>	* source result.
939	>	*/
940	>	public void testWhenComplete_exceptionalCompletion() {
941	>	for (ExecutionMode m : ExecutionMode.values())
942	>	for (boolean createIncomplete : new boolean[] { true, false })
943	>	{
944	>	final AtomicInteger a = new AtomicInteger(0);
945	>	final CFException ex = new CFException();
946	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
947	>	if (!createIncomplete) f.completeExceptionally(ex);
948	>	final CompletableFuture<Integer> g = m.whenComplete
949	>	(f,
950	>	(Integer result, Throwable t) -> {
951	>	m.checkExecutionMode();
952	>	threadAssertNull(result);
953	>	threadAssertSame(t, ex);
954	>	a.getAndIncrement();
955	>	});
956	>	if (createIncomplete) f.completeExceptionally(ex);
957	>
958	>	checkCompletedWithWrappedException(g, ex);
959	>	checkCompletedExceptionally(f, ex);
960	>	assertEquals(1, a.get());
961	>	}}
962	>
963	>	/**
964	>	* whenComplete action executes on cancelled source, propagating
965	>	* CancellationException.
966	>	*/
967	>	public void testWhenComplete_sourceCancelled() {
968	>	for (ExecutionMode m : ExecutionMode.values())
969	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
970	>	for (boolean createIncomplete : new boolean[] { true, false })
971	>	{
972	>	final AtomicInteger a = new AtomicInteger(0);
973	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
974	>	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
975	>	final CompletableFuture<Integer> g = m.whenComplete
976	>	(f,
977	>	(Integer result, Throwable t) -> {
978	>	m.checkExecutionMode();
979	>	threadAssertNull(result);
980	>	threadAssertTrue(t instanceof CancellationException);
981	>	a.getAndIncrement();
982	>	});
983	>	if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
984	>
985	>	checkCompletedWithWrappedCancellationException(g);
986	>	checkCancelled(f);
987	>	assertEquals(1, a.get());
988	>	}}
989	>
990	>	/**
991	>	* If a whenComplete action throws an exception when triggered by
992	>	* a normal completion, it completes exceptionally
993	>	*/
994	>	public void testWhenComplete_sourceCompletedNormallyActionFailed() {
995	>	for (boolean createIncomplete : new boolean[] { true, false })
996	>	for (ExecutionMode m : ExecutionMode.values())
997	>	for (Integer v1 : new Integer[] { 1, null })
998	>	{
999	>	final AtomicInteger a = new AtomicInteger(0);
1000	>	final CFException ex = new CFException();
1001	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1002	>	if (!createIncomplete) assertTrue(f.complete(v1));
1003	>	final CompletableFuture<Integer> g = m.whenComplete
1004	>	(f,
1005	>	(Integer result, Throwable t) -> {
1006	>	m.checkExecutionMode();
1007	>	threadAssertSame(result, v1);
1008	>	threadAssertNull(t);
1009	>	a.getAndIncrement();
1010	>	throw ex;
1011	>	});
1012	>	if (createIncomplete) assertTrue(f.complete(v1));
1013	>
1014	>	checkCompletedWithWrappedException(g, ex);
1015	>	checkCompletedNormally(f, v1);
1016	>	assertEquals(1, a.get());
1017	>	}}
1018	>
1019	>	/**
1020	>	* If a whenComplete action throws an exception when triggered by
1021	>	* a source completion that also throws an exception, the source
1022	>	* exception takes precedence (unlike handle)
1023	>	*/
1024	>	public void testWhenComplete_sourceFailedActionFailed() {
1025	>	for (boolean createIncomplete : new boolean[] { true, false })
1026	>	for (ExecutionMode m : ExecutionMode.values())
1027	>	{
1028	>	final AtomicInteger a = new AtomicInteger(0);
1029	>	final CFException ex1 = new CFException();
1030	>	final CFException ex2 = new CFException();
1031	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1032	>
1033	>	if (!createIncomplete) f.completeExceptionally(ex1);
1034	>	final CompletableFuture<Integer> g = m.whenComplete
1035	>	(f,
1036	>	(Integer result, Throwable t) -> {
1037	>	m.checkExecutionMode();
1038		threadAssertSame(t, ex1);
1039	+	threadAssertNull(result);
1040		a.getAndIncrement();
1041		throw ex2;
1042		});
1043		if (createIncomplete) f.completeExceptionally(ex1);
1044
1045	<	checkCompletedWithWrappedCFException(g, ex2);
1045	>	checkCompletedWithWrappedException(g, ex1);
1046	>	checkCompletedExceptionally(f, ex1);
1047	>	if (testImplementationDetails) {
1048	>	assertEquals(1, ex1.getSuppressed().length);
1049	>	assertSame(ex2, ex1.getSuppressed()[0]);
1050	>	}
1051		assertEquals(1, a.get());
1052		}}
1053
#	Line 867 | Line 1062 | public class CompletableFutureTest exten
1062		{
1063		final CompletableFuture<Integer> f = new CompletableFuture<>();
1064		final AtomicInteger a = new AtomicInteger(0);
1065	<	if (!createIncomplete) f.complete(v1);
1065	>	if (!createIncomplete) assertTrue(f.complete(v1));
1066		final CompletableFuture<Integer> g = m.handle
1067		(f,
1068	<	(Integer x, Throwable t) -> {
1068	>	(Integer result, Throwable t) -> {
1069		m.checkExecutionMode();
1070	<	threadAssertSame(x, v1);
1070	>	threadAssertSame(result, v1);
1071		threadAssertNull(t);
1072		a.getAndIncrement();
1073		return inc(v1);
1074		});
1075	<	if (createIncomplete) f.complete(v1);
1075	>	if (createIncomplete) assertTrue(f.complete(v1));
1076
1077		checkCompletedNormally(g, inc(v1));
1078		checkCompletedNormally(f, v1);
#	Line 899 | Line 1094 | public class CompletableFutureTest exten
1094		if (!createIncomplete) f.completeExceptionally(ex);
1095		final CompletableFuture<Integer> g = m.handle
1096		(f,
1097	<	(Integer x, Throwable t) -> {
1097	>	(Integer result, Throwable t) -> {
1098		m.checkExecutionMode();
1099	<	threadAssertNull(x);
1099	>	threadAssertNull(result);
1100		threadAssertSame(t, ex);
1101		a.getAndIncrement();
1102		return v1;
#	Line 909 | Line 1104 | public class CompletableFutureTest exten
1104		if (createIncomplete) f.completeExceptionally(ex);
1105
1106		checkCompletedNormally(g, v1);
1107	<	checkCompletedWithWrappedCFException(f, ex);
1107	>	checkCompletedExceptionally(f, ex);
1108		assertEquals(1, a.get());
1109		}}
1110
#	Line 928 | Line 1123 | public class CompletableFutureTest exten
1123		if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1124		final CompletableFuture<Integer> g = m.handle
1125		(f,
1126	<	(Integer x, Throwable t) -> {
1126	>	(Integer result, Throwable t) -> {
1127		m.checkExecutionMode();
1128	<	threadAssertNull(x);
1128	>	threadAssertNull(result);
1129		threadAssertTrue(t instanceof CancellationException);
1130		a.getAndIncrement();
1131		return v1;
#	Line 943 | Line 1138 | public class CompletableFutureTest exten
1138		}}
1139
1140		/**
1141	<	* handle result completes exceptionally if action does
1141	>	* If a "handle action" throws an exception when triggered by
1142	>	* a normal completion, it completes exceptionally
1143		*/
1144	<	public void testHandle_sourceFailedActionFailed() {
1144	>	public void testHandle_sourceCompletedNormallyActionFailed() {
1145		for (ExecutionMode m : ExecutionMode.values())
1146		for (boolean createIncomplete : new boolean[] { true, false })
1147	+	for (Integer v1 : new Integer[] { 1, null })
1148		{
1149		final CompletableFuture<Integer> f = new CompletableFuture<>();
1150		final AtomicInteger a = new AtomicInteger(0);
1151	<	final CFException ex1 = new CFException();
1152	<	final CFException ex2 = new CFException();
956	<	if (!createIncomplete) f.completeExceptionally(ex1);
1151	>	final CFException ex = new CFException();
1152	>	if (!createIncomplete) assertTrue(f.complete(v1));
1153		final CompletableFuture<Integer> g = m.handle
1154		(f,
1155	<	(Integer x, Throwable t) -> {
1155	>	(Integer result, Throwable t) -> {
1156		m.checkExecutionMode();
1157	<	threadAssertNull(x);
1158	<	threadAssertSame(ex1, t);
1157	>	threadAssertSame(result, v1);
1158	>	threadAssertNull(t);
1159		a.getAndIncrement();
1160	<	throw ex2;
1160	>	throw ex;
1161		});
1162	<	if (createIncomplete) f.completeExceptionally(ex1);
1162	>	if (createIncomplete) assertTrue(f.complete(v1));
1163
1164	<	checkCompletedWithWrappedCFException(g, ex2);
1165	<	checkCompletedWithWrappedCFException(f, ex1);
1164	>	checkCompletedWithWrappedException(g, ex);
1165	>	checkCompletedNormally(f, v1);
1166		assertEquals(1, a.get());
1167		}}
1168
1169	<	public void testHandle_sourceCompletedNormallyActionFailed() {
1170	<	for (ExecutionMode m : ExecutionMode.values())
1169	>	/**
1170	>	* If a "handle action" throws an exception when triggered by
1171	>	* a source completion that also throws an exception, the action
1172	>	* exception takes precedence (unlike whenComplete)
1173	>	*/
1174	>	public void testHandle_sourceFailedActionFailed() {
1175		for (boolean createIncomplete : new boolean[] { true, false })
1176	<	for (Integer v1 : new Integer[] { 1, null })
1176	>	for (ExecutionMode m : ExecutionMode.values())
1177		{
978	–	final CompletableFuture<Integer> f = new CompletableFuture<>();
1178		final AtomicInteger a = new AtomicInteger(0);
1179	<	final CFException ex = new CFException();
1180	<	if (!createIncomplete) f.complete(v1);
1179	>	final CFException ex1 = new CFException();
1180	>	final CFException ex2 = new CFException();
1181	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1182	>
1183	>	if (!createIncomplete) f.completeExceptionally(ex1);
1184		final CompletableFuture<Integer> g = m.handle
1185		(f,
1186	<	(Integer x, Throwable t) -> {
1186	>	(Integer result, Throwable t) -> {
1187		m.checkExecutionMode();
1188	<	threadAssertSame(x, v1);
1189	<	threadAssertNull(t);
1188	>	threadAssertNull(result);
1189	>	threadAssertSame(ex1, t);
1190		a.getAndIncrement();
1191	<	throw ex;
1191	>	throw ex2;
1192		});
1193	<	if (createIncomplete) f.complete(v1);
1193	>	if (createIncomplete) f.completeExceptionally(ex1);
1194
1195	<	checkCompletedWithWrappedCFException(g, ex);
1196	<	checkCompletedNormally(f, v1);
1195	>	checkCompletedWithWrappedException(g, ex2);
1196	>	checkCompletedExceptionally(f, ex1);
1197		assertEquals(1, a.get());
1198		}}
1199
#	Line 1069 | Line 1271 | public class CompletableFutureTest exten
1271		*/
1272		public void testThenRun_normalCompletion() {
1273		for (ExecutionMode m : ExecutionMode.values())
1072	–	for (boolean createIncomplete : new boolean[] { true, false })
1274		for (Integer v1 : new Integer[] { 1, null })
1275		{
1276		final CompletableFuture<Integer> f = new CompletableFuture<>();
1277	<	final Noop r = new Noop(m);
1278	<	if (!createIncomplete) f.complete(v1);
1078	<	final CompletableFuture<Void> g = m.thenRun(f, r);
1079	<	if (createIncomplete) {
1080	<	checkIncomplete(g);
1081	<	f.complete(v1);
1082	<	}
1277	>	final Noop[] rs = new Noop[6];
1278	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1279
1280	<	checkCompletedNormally(g, null);
1280	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1281	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1282	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1283	>	checkIncomplete(h0);
1284	>	checkIncomplete(h1);
1285	>	checkIncomplete(h2);
1286	>	assertTrue(f.complete(v1));
1287	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1288	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1289	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1290	>
1291	>	checkCompletedNormally(h0, null);
1292	>	checkCompletedNormally(h1, null);
1293	>	checkCompletedNormally(h2, null);
1294	>	checkCompletedNormally(h3, null);
1295	>	checkCompletedNormally(h4, null);
1296	>	checkCompletedNormally(h5, null);
1297		checkCompletedNormally(f, v1);
1298	<	r.assertInvoked();
1298	>	for (Noop r : rs) r.assertInvoked();
1299		}}
1300
1301		/**
#	Line 1092 | Line 1304 | public class CompletableFutureTest exten
1304		*/
1305		public void testThenRun_exceptionalCompletion() {
1306		for (ExecutionMode m : ExecutionMode.values())
1095	–	for (boolean createIncomplete : new boolean[] { true, false })
1307		{
1308		final CFException ex = new CFException();
1309		final CompletableFuture<Integer> f = new CompletableFuture<>();
1310	<	final Noop r = new Noop(m);
1311	<	if (!createIncomplete) f.completeExceptionally(ex);
1101	<	final CompletableFuture<Void> g = m.thenRun(f, r);
1102	<	if (createIncomplete) {
1103	<	checkIncomplete(g);
1104	<	f.completeExceptionally(ex);
1105	<	}
1310	>	final Noop[] rs = new Noop[6];
1311	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1312
1313	<	checkCompletedWithWrappedCFException(g, ex);
1314	<	checkCompletedWithWrappedCFException(f, ex);
1315	<	r.assertNotInvoked();
1313	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1314	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1315	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1316	>	checkIncomplete(h0);
1317	>	checkIncomplete(h1);
1318	>	checkIncomplete(h2);
1319	>	assertTrue(f.completeExceptionally(ex));
1320	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1321	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1322	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1323	>
1324	>	checkCompletedWithWrappedException(h0, ex);
1325	>	checkCompletedWithWrappedException(h1, ex);
1326	>	checkCompletedWithWrappedException(h2, ex);
1327	>	checkCompletedWithWrappedException(h3, ex);
1328	>	checkCompletedWithWrappedException(h4, ex);
1329	>	checkCompletedWithWrappedException(h5, ex);
1330	>	checkCompletedExceptionally(f, ex);
1331	>	for (Noop r : rs) r.assertNotInvoked();
1332		}}
1333
1334		/**
#	Line 1114 | Line 1336 | public class CompletableFutureTest exten
1336		*/
1337		public void testThenRun_sourceCancelled() {
1338		for (ExecutionMode m : ExecutionMode.values())
1117	–	for (boolean createIncomplete : new boolean[] { true, false })
1339		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1340		{
1341		final CompletableFuture<Integer> f = new CompletableFuture<>();
1342	<	final Noop r = new Noop(m);
1343	<	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1123	<	final CompletableFuture<Void> g = m.thenRun(f, r);
1124	<	if (createIncomplete) {
1125	<	checkIncomplete(g);
1126	<	assertTrue(f.cancel(mayInterruptIfRunning));
1127	<	}
1342	>	final Noop[] rs = new Noop[6];
1343	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1344
1345	<	checkCompletedWithWrappedCancellationException(g);
1345	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1346	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1347	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1348	>	checkIncomplete(h0);
1349	>	checkIncomplete(h1);
1350	>	checkIncomplete(h2);
1351	>	assertTrue(f.cancel(mayInterruptIfRunning));
1352	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1353	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1354	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1355	>
1356	>	checkCompletedWithWrappedCancellationException(h0);
1357	>	checkCompletedWithWrappedCancellationException(h1);
1358	>	checkCompletedWithWrappedCancellationException(h2);
1359	>	checkCompletedWithWrappedCancellationException(h3);
1360	>	checkCompletedWithWrappedCancellationException(h4);
1361	>	checkCompletedWithWrappedCancellationException(h5);
1362		checkCancelled(f);
1363	<	r.assertNotInvoked();
1363	>	for (Noop r : rs) r.assertNotInvoked();
1364		}}
1365
1366		/**
#	Line 1136 | Line 1368 | public class CompletableFutureTest exten
1368		*/
1369		public void testThenRun_actionFailed() {
1370		for (ExecutionMode m : ExecutionMode.values())
1139	–	for (boolean createIncomplete : new boolean[] { true, false })
1371		for (Integer v1 : new Integer[] { 1, null })
1372		{
1373		final CompletableFuture<Integer> f = new CompletableFuture<>();
1374	<	final FailingRunnable r = new FailingRunnable(m);
1375	<	if (!createIncomplete) f.complete(v1);
1145	<	final CompletableFuture<Void> g = m.thenRun(f, r);
1146	<	if (createIncomplete) {
1147	<	checkIncomplete(g);
1148	<	f.complete(v1);
1149	<	}
1374	>	final FailingRunnable[] rs = new FailingRunnable[6];
1375	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingRunnable(m);
1376
1377	<	checkCompletedWithWrappedCFException(g);
1377	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1378	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1379	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1380	>	assertTrue(f.complete(v1));
1381	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1382	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1383	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1384	>
1385	>	checkCompletedWithWrappedCFException(h0);
1386	>	checkCompletedWithWrappedCFException(h1);
1387	>	checkCompletedWithWrappedCFException(h2);
1388	>	checkCompletedWithWrappedCFException(h3);
1389	>	checkCompletedWithWrappedCFException(h4);
1390	>	checkCompletedWithWrappedCFException(h5);
1391		checkCompletedNormally(f, v1);
1392		}}
1393
#	Line 1157 | Line 1396 | public class CompletableFutureTest exten
1396		*/
1397		public void testThenApply_normalCompletion() {
1398		for (ExecutionMode m : ExecutionMode.values())
1160	–	for (boolean createIncomplete : new boolean[] { true, false })
1399		for (Integer v1 : new Integer[] { 1, null })
1400		{
1401		final CompletableFuture<Integer> f = new CompletableFuture<>();
1402	<	final IncFunction r = new IncFunction(m);
1403	<	if (!createIncomplete) f.complete(v1);
1166	<	final CompletableFuture<Integer> g = m.thenApply(f, r);
1167	<	if (createIncomplete) {
1168	<	checkIncomplete(g);
1169	<	f.complete(v1);
1170	<	}
1402	>	final IncFunction[] rs = new IncFunction[4];
1403	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1404
1405	<	checkCompletedNormally(g, inc(v1));
1405	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1406	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1407	>	checkIncomplete(h0);
1408	>	checkIncomplete(h1);
1409	>	assertTrue(f.complete(v1));
1410	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1411	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1412	>
1413	>	checkCompletedNormally(h0, inc(v1));
1414	>	checkCompletedNormally(h1, inc(v1));
1415	>	checkCompletedNormally(h2, inc(v1));
1416	>	checkCompletedNormally(h3, inc(v1));
1417		checkCompletedNormally(f, v1);
1418	<	r.assertInvoked();
1418	>	for (IncFunction r : rs) r.assertValue(inc(v1));
1419		}}
1420
1421		/**
#	Line 1180 | Line 1424 | public class CompletableFutureTest exten
1424		*/
1425		public void testThenApply_exceptionalCompletion() {
1426		for (ExecutionMode m : ExecutionMode.values())
1183	–	for (boolean createIncomplete : new boolean[] { true, false })
1427		{
1428		final CFException ex = new CFException();
1429		final CompletableFuture<Integer> f = new CompletableFuture<>();
1430	<	final IncFunction r = new IncFunction(m);
1431	<	if (!createIncomplete) f.completeExceptionally(ex);
1189	<	final CompletableFuture<Integer> g = m.thenApply(f, r);
1190	<	if (createIncomplete) {
1191	<	checkIncomplete(g);
1192	<	f.completeExceptionally(ex);
1193	<	}
1430	>	final IncFunction[] rs = new IncFunction[4];
1431	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1432
1433	<	checkCompletedWithWrappedCFException(g, ex);
1434	<	checkCompletedWithWrappedCFException(f, ex);
1435	<	r.assertNotInvoked();
1433	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1434	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1435	>	assertTrue(f.completeExceptionally(ex));
1436	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1437	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1438	>
1439	>	checkCompletedWithWrappedException(h0, ex);
1440	>	checkCompletedWithWrappedException(h1, ex);
1441	>	checkCompletedWithWrappedException(h2, ex);
1442	>	checkCompletedWithWrappedException(h3, ex);
1443	>	checkCompletedExceptionally(f, ex);
1444	>	for (IncFunction r : rs) r.assertNotInvoked();
1445		}}
1446
1447		/**
#	Line 1202 | Line 1449 | public class CompletableFutureTest exten
1449		*/
1450		public void testThenApply_sourceCancelled() {
1451		for (ExecutionMode m : ExecutionMode.values())
1205	–	for (boolean createIncomplete : new boolean[] { true, false })
1452		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1453		{
1454		final CompletableFuture<Integer> f = new CompletableFuture<>();
1455	<	final IncFunction r = new IncFunction(m);
1456	<	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1211	<	final CompletableFuture<Integer> g = m.thenApply(f, r);
1212	<	if (createIncomplete) {
1213	<	checkIncomplete(g);
1214	<	assertTrue(f.cancel(mayInterruptIfRunning));
1215	<	}
1455	>	final IncFunction[] rs = new IncFunction[4];
1456	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1457
1458	<	checkCompletedWithWrappedCancellationException(g);
1458	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1459	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1460	>	assertTrue(f.cancel(mayInterruptIfRunning));
1461	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1462	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1463	>
1464	>	checkCompletedWithWrappedCancellationException(h0);
1465	>	checkCompletedWithWrappedCancellationException(h1);
1466	>	checkCompletedWithWrappedCancellationException(h2);
1467	>	checkCompletedWithWrappedCancellationException(h3);
1468		checkCancelled(f);
1469	<	r.assertNotInvoked();
1469	>	for (IncFunction r : rs) r.assertNotInvoked();
1470		}}
1471
1472		/**
#	Line 1224 | Line 1474 | public class CompletableFutureTest exten
1474		*/
1475		public void testThenApply_actionFailed() {
1476		for (ExecutionMode m : ExecutionMode.values())
1227	–	for (boolean createIncomplete : new boolean[] { true, false })
1477		for (Integer v1 : new Integer[] { 1, null })
1478		{
1479		final CompletableFuture<Integer> f = new CompletableFuture<>();
1480	<	final FailingFunction r = new FailingFunction(m);
1481	<	if (!createIncomplete) f.complete(v1);
1233	<	final CompletableFuture<Integer> g = m.thenApply(f, r);
1234	<	if (createIncomplete) {
1235	<	checkIncomplete(g);
1236	<	f.complete(v1);
1237	<	}
1480	>	final FailingFunction[] rs = new FailingFunction[4];
1481	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingFunction(m);
1482
1483	<	checkCompletedWithWrappedCFException(g);
1483	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1484	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1485	>	assertTrue(f.complete(v1));
1486	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1487	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1488	>
1489	>	checkCompletedWithWrappedCFException(h0);
1490	>	checkCompletedWithWrappedCFException(h1);
1491	>	checkCompletedWithWrappedCFException(h2);
1492	>	checkCompletedWithWrappedCFException(h3);
1493		checkCompletedNormally(f, v1);
1494		}}
1495
#	Line 1245 | Line 1498 | public class CompletableFutureTest exten
1498		*/
1499		public void testThenAccept_normalCompletion() {
1500		for (ExecutionMode m : ExecutionMode.values())
1248	–	for (boolean createIncomplete : new boolean[] { true, false })
1501		for (Integer v1 : new Integer[] { 1, null })
1502		{
1503		final CompletableFuture<Integer> f = new CompletableFuture<>();
1504	<	final NoopConsumer r = new NoopConsumer(m);
1505	<	if (!createIncomplete) f.complete(v1);
1254	<	final CompletableFuture<Void> g = m.thenAccept(f, r);
1255	<	if (createIncomplete) {
1256	<	checkIncomplete(g);
1257	<	f.complete(v1);
1258	<	}
1504	>	final NoopConsumer[] rs = new NoopConsumer[4];
1505	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1506
1507	<	checkCompletedNormally(g, null);
1508	<	r.assertValue(v1);
1507	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1508	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1509	>	checkIncomplete(h0);
1510	>	checkIncomplete(h1);
1511	>	assertTrue(f.complete(v1));
1512	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1513	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1514	>
1515	>	checkCompletedNormally(h0, null);
1516	>	checkCompletedNormally(h1, null);
1517	>	checkCompletedNormally(h2, null);
1518	>	checkCompletedNormally(h3, null);
1519		checkCompletedNormally(f, v1);
1520	+	for (NoopConsumer r : rs) r.assertValue(v1);
1521		}}
1522
1523		/**
#	Line 1268 | Line 1526 | public class CompletableFutureTest exten
1526		*/
1527		public void testThenAccept_exceptionalCompletion() {
1528		for (ExecutionMode m : ExecutionMode.values())
1271	–	for (boolean createIncomplete : new boolean[] { true, false })
1529		{
1530		final CFException ex = new CFException();
1531		final CompletableFuture<Integer> f = new CompletableFuture<>();
1532	<	final NoopConsumer r = new NoopConsumer(m);
1533	<	if (!createIncomplete) f.completeExceptionally(ex);
1277	<	final CompletableFuture<Void> g = m.thenAccept(f, r);
1278	<	if (createIncomplete) {
1279	<	checkIncomplete(g);
1280	<	f.completeExceptionally(ex);
1281	<	}
1532	>	final NoopConsumer[] rs = new NoopConsumer[4];
1533	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1534
1535	<	checkCompletedWithWrappedCFException(g, ex);
1536	<	checkCompletedWithWrappedCFException(f, ex);
1537	<	r.assertNotInvoked();
1535	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1536	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1537	>	assertTrue(f.completeExceptionally(ex));
1538	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1539	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1540	>
1541	>	checkCompletedWithWrappedException(h0, ex);
1542	>	checkCompletedWithWrappedException(h1, ex);
1543	>	checkCompletedWithWrappedException(h2, ex);
1544	>	checkCompletedWithWrappedException(h3, ex);
1545	>	checkCompletedExceptionally(f, ex);
1546	>	for (NoopConsumer r : rs) r.assertNotInvoked();
1547		}}
1548
1549		/**
#	Line 1290 | Line 1551 | public class CompletableFutureTest exten
1551		*/
1552		public void testThenAccept_sourceCancelled() {
1553		for (ExecutionMode m : ExecutionMode.values())
1293	–	for (boolean createIncomplete : new boolean[] { true, false })
1554		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1555		{
1556		final CompletableFuture<Integer> f = new CompletableFuture<>();
1557	<	final NoopConsumer r = new NoopConsumer(m);
1558	<	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1299	<	final CompletableFuture<Void> g = m.thenAccept(f, r);
1300	<	if (createIncomplete) {
1301	<	checkIncomplete(g);
1302	<	assertTrue(f.cancel(mayInterruptIfRunning));
1303	<	}
1557	>	final NoopConsumer[] rs = new NoopConsumer[4];
1558	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1559
1560	<	checkCompletedWithWrappedCancellationException(g);
1560	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1561	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1562	>	assertTrue(f.cancel(mayInterruptIfRunning));
1563	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1564	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1565	>
1566	>	checkCompletedWithWrappedCancellationException(h0);
1567	>	checkCompletedWithWrappedCancellationException(h1);
1568	>	checkCompletedWithWrappedCancellationException(h2);
1569	>	checkCompletedWithWrappedCancellationException(h3);
1570		checkCancelled(f);
1571	<	r.assertNotInvoked();
1571	>	for (NoopConsumer r : rs) r.assertNotInvoked();
1572		}}
1573
1574		/**
#	Line 1312 | Line 1576 | public class CompletableFutureTest exten
1576		*/
1577		public void testThenAccept_actionFailed() {
1578		for (ExecutionMode m : ExecutionMode.values())
1315	–	for (boolean createIncomplete : new boolean[] { true, false })
1579		for (Integer v1 : new Integer[] { 1, null })
1580		{
1581		final CompletableFuture<Integer> f = new CompletableFuture<>();
1582	<	final FailingConsumer r = new FailingConsumer(m);
1583	<	if (!createIncomplete) f.complete(v1);
1321	<	final CompletableFuture<Void> g = m.thenAccept(f, r);
1322	<	if (createIncomplete) {
1323	<	checkIncomplete(g);
1324	<	f.complete(v1);
1325	<	}
1582	>	final FailingConsumer[] rs = new FailingConsumer[4];
1583	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingConsumer(m);
1584
1585	<	checkCompletedWithWrappedCFException(g);
1585	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1586	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1587	>	assertTrue(f.complete(v1));
1588	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1589	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1590	>
1591	>	checkCompletedWithWrappedCFException(h0);
1592	>	checkCompletedWithWrappedCFException(h1);
1593	>	checkCompletedWithWrappedCFException(h2);
1594	>	checkCompletedWithWrappedCFException(h3);
1595		checkCompletedNormally(f, v1);
1596		}}
1597
#	Line 1334 | Line 1601 | public class CompletableFutureTest exten
1601		*/
1602		public void testThenCombine_normalCompletion() {
1603		for (ExecutionMode m : ExecutionMode.values())
1337	–	for (boolean createIncomplete : new boolean[] { true, false })
1604		for (boolean fFirst : new boolean[] { true, false })
1605		for (Integer v1 : new Integer[] { 1, null })
1606		for (Integer v2 : new Integer[] { 2, null })
1607		{
1608		final CompletableFuture<Integer> f = new CompletableFuture<>();
1609		final CompletableFuture<Integer> g = new CompletableFuture<>();
1610	<	final SubtractFunction r = new SubtractFunction(m);
1610	>	final SubtractFunction[] rs = new SubtractFunction[6];
1611	>	for (int i = 0; i < rs.length; i++) rs[i] = new SubtractFunction(m);
1612
1613	<	if (fFirst) f.complete(v1); else g.complete(v2);
1614	<	if (!createIncomplete)
1615	<	if (!fFirst) f.complete(v1); else g.complete(v2);
1616	<	final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1617	<	if (createIncomplete) {
1618	<	checkIncomplete(h);
1619	<	r.assertNotInvoked();
1620	<	if (!fFirst) f.complete(v1); else g.complete(v2);
1621	<	}
1613	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1614	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1615	>	final Integer w1 =  fFirst ? v1 : v2;
1616	>	final Integer w2 = !fFirst ? v1 : v2;
1617	>
1618	>	final CompletableFuture<Integer> h0 = m.thenCombine(f, g, rs[0]);
1619	>	final CompletableFuture<Integer> h1 = m.thenCombine(fst, fst, rs[1]);
1620	>	assertTrue(fst.complete(w1));
1621	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, rs[2]);
1622	>	final CompletableFuture<Integer> h3 = m.thenCombine(fst, fst, rs[3]);
1623	>	checkIncomplete(h0); rs[0].assertNotInvoked();
1624	>	checkIncomplete(h2); rs[2].assertNotInvoked();
1625	>	checkCompletedNormally(h1, subtract(w1, w1));
1626	>	checkCompletedNormally(h3, subtract(w1, w1));
1627	>	rs[1].assertValue(subtract(w1, w1));
1628	>	rs[3].assertValue(subtract(w1, w1));
1629	>	assertTrue(snd.complete(w2));
1630	>	final CompletableFuture<Integer> h4 = m.thenCombine(f, g, rs[4]);
1631	>
1632	>	checkCompletedNormally(h0, subtract(v1, v2));
1633	>	checkCompletedNormally(h2, subtract(v1, v2));
1634	>	checkCompletedNormally(h4, subtract(v1, v2));
1635	>	rs[0].assertValue(subtract(v1, v2));
1636	>	rs[2].assertValue(subtract(v1, v2));
1637	>	rs[4].assertValue(subtract(v1, v2));
1638
1356	–	checkCompletedNormally(h, subtract(v1, v2));
1639		checkCompletedNormally(f, v1);
1640		checkCompletedNormally(g, v2);
1359	–	r.assertInvoked();
1641		}}
1642
1643		/**
1644		* thenCombine result completes exceptionally after exceptional
1645		* completion of either source
1646		*/
1647	<	public void testThenCombine_exceptionalCompletion() {
1647	>	public void testThenCombine_exceptionalCompletion() throws Throwable {
1648		for (ExecutionMode m : ExecutionMode.values())
1368	–	for (boolean createIncomplete : new boolean[] { true, false })
1649		for (boolean fFirst : new boolean[] { true, false })
1650	+	for (boolean failFirst : new boolean[] { true, false })
1651		for (Integer v1 : new Integer[] { 1, null })
1652		{
1653		final CompletableFuture<Integer> f = new CompletableFuture<>();
1654		final CompletableFuture<Integer> g = new CompletableFuture<>();
1655		final CFException ex = new CFException();
1656	<	final SubtractFunction r = new SubtractFunction(m);
1657	<
1658	<	(fFirst ? f : g).complete(v1);
1659	<	if (!createIncomplete)
1660	<	(!fFirst ? f : g).completeExceptionally(ex);
1661	<	final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1662	<	if (createIncomplete) {
1663	<	checkIncomplete(h);
1664	<	(!fFirst ? f : g).completeExceptionally(ex);
1665	<	}
1666	<
1667	<	checkCompletedWithWrappedCFException(h, ex);
1668	<	r.assertNotInvoked();
1669	<	checkCompletedNormally(fFirst ? f : g, v1);
1670	<	checkCompletedWithWrappedCFException(!fFirst ? f : g, ex);
1656	>	final SubtractFunction r1 = new SubtractFunction(m);
1657	>	final SubtractFunction r2 = new SubtractFunction(m);
1658	>	final SubtractFunction r3 = new SubtractFunction(m);
1659	>
1660	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1661	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1662	>	final Callable<Boolean> complete1 = failFirst ?
1663	>	() -> fst.completeExceptionally(ex) :
1664	>	() -> fst.complete(v1);
1665	>	final Callable<Boolean> complete2 = failFirst ?
1666	>	() -> snd.complete(v1) :
1667	>	() -> snd.completeExceptionally(ex);
1668	>
1669	>	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1670	>	assertTrue(complete1.call());
1671	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1672	>	checkIncomplete(h1);
1673	>	checkIncomplete(h2);
1674	>	assertTrue(complete2.call());
1675	>	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1676	>
1677	>	checkCompletedWithWrappedException(h1, ex);
1678	>	checkCompletedWithWrappedException(h2, ex);
1679	>	checkCompletedWithWrappedException(h3, ex);
1680	>	r1.assertNotInvoked();
1681	>	r2.assertNotInvoked();
1682	>	r3.assertNotInvoked();
1683	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1684	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
1685		}}
1686
1687		/**
1688		* thenCombine result completes exceptionally if either source cancelled
1689		*/
1690	<	public void testThenCombine_sourceCancelled() {
1690	>	public void testThenCombine_sourceCancelled() throws Throwable {
1691		for (ExecutionMode m : ExecutionMode.values())
1692		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1398	–	for (boolean createIncomplete : new boolean[] { true, false })
1693		for (boolean fFirst : new boolean[] { true, false })
1694	+	for (boolean failFirst : new boolean[] { true, false })
1695		for (Integer v1 : new Integer[] { 1, null })
1696		{
1697		final CompletableFuture<Integer> f = new CompletableFuture<>();
1698		final CompletableFuture<Integer> g = new CompletableFuture<>();
1699	<	final SubtractFunction r = new SubtractFunction(m);
1699	>	final SubtractFunction r1 = new SubtractFunction(m);
1700	>	final SubtractFunction r2 = new SubtractFunction(m);
1701	>	final SubtractFunction r3 = new SubtractFunction(m);
1702
1703	<	(fFirst ? f : g).complete(v1);
1704	<	if (!createIncomplete)
1705	<	assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
1706	<	final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1707	<	if (createIncomplete) {
1708	<	checkIncomplete(h);
1709	<	assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
1710	<	}
1703	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1704	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1705	>	final Callable<Boolean> complete1 = failFirst ?
1706	>	() -> fst.cancel(mayInterruptIfRunning) :
1707	>	() -> fst.complete(v1);
1708	>	final Callable<Boolean> complete2 = failFirst ?
1709	>	() -> snd.complete(v1) :
1710	>	() -> snd.cancel(mayInterruptIfRunning);
1711
1712	<	checkCompletedWithWrappedCancellationException(h);
1713	<	checkCancelled(!fFirst ? f : g);
1714	<	r.assertNotInvoked();
1715	<	checkCompletedNormally(fFirst ? f : g, v1);
1712	>	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1713	>	assertTrue(complete1.call());
1714	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1715	>	checkIncomplete(h1);
1716	>	checkIncomplete(h2);
1717	>	assertTrue(complete2.call());
1718	>	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1719	>
1720	>	checkCompletedWithWrappedCancellationException(h1);
1721	>	checkCompletedWithWrappedCancellationException(h2);
1722	>	checkCompletedWithWrappedCancellationException(h3);
1723	>	r1.assertNotInvoked();
1724	>	r2.assertNotInvoked();
1725	>	r3.assertNotInvoked();
1726	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1727	>	checkCancelled(failFirst ? fst : snd);
1728		}}
1729
1730		/**
#	Line 1429 | Line 1738 | public class CompletableFutureTest exten
1738		{
1739		final CompletableFuture<Integer> f = new CompletableFuture<>();
1740		final CompletableFuture<Integer> g = new CompletableFuture<>();
1741	<	final FailingBiFunction r = new FailingBiFunction(m);
1742	<	final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1743	<
1744	<	if (fFirst) {
1745	<	f.complete(v1);
1746	<	g.complete(v2);
1747	<	} else {
1748	<	g.complete(v2);
1749	<	f.complete(v1);
1750	<	}
1741	>	final FailingBiFunction r1 = new FailingBiFunction(m);
1742	>	final FailingBiFunction r2 = new FailingBiFunction(m);
1743	>	final FailingBiFunction r3 = new FailingBiFunction(m);
1744	>
1745	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1746	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1747	>	final Integer w1 =  fFirst ? v1 : v2;
1748	>	final Integer w2 = !fFirst ? v1 : v2;
1749	>
1750	>	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1751	>	assertTrue(fst.complete(w1));
1752	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1753	>	assertTrue(snd.complete(w2));
1754	>	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1755
1756	<	checkCompletedWithWrappedCFException(h);
1756	>	checkCompletedWithWrappedCFException(h1);
1757	>	checkCompletedWithWrappedCFException(h2);
1758	>	checkCompletedWithWrappedCFException(h3);
1759	>	r1.assertInvoked();
1760	>	r2.assertInvoked();
1761	>	r3.assertInvoked();
1762		checkCompletedNormally(f, v1);
1763		checkCompletedNormally(g, v2);
1764		}}
#	Line 1451 | Line 1769 | public class CompletableFutureTest exten
1769		*/
1770		public void testThenAcceptBoth_normalCompletion() {
1771		for (ExecutionMode m : ExecutionMode.values())
1454	–	for (boolean createIncomplete : new boolean[] { true, false })
1772		for (boolean fFirst : new boolean[] { true, false })
1773		for (Integer v1 : new Integer[] { 1, null })
1774		for (Integer v2 : new Integer[] { 2, null })
1775		{
1776		final CompletableFuture<Integer> f = new CompletableFuture<>();
1777		final CompletableFuture<Integer> g = new CompletableFuture<>();
1778	<	final SubtractAction r = new SubtractAction(m);
1779	<
1780	<	if (fFirst) f.complete(v1); else g.complete(v2);
1781	<	if (!createIncomplete)
1782	<	if (!fFirst) f.complete(v1); else g.complete(v2);
1783	<	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1784	<	if (createIncomplete) {
1785	<	checkIncomplete(h);
1786	<	r.assertNotInvoked();
1787	<	if (!fFirst) f.complete(v1); else g.complete(v2);
1788	<	}
1778	>	final SubtractAction r1 = new SubtractAction(m);
1779	>	final SubtractAction r2 = new SubtractAction(m);
1780	>	final SubtractAction r3 = new SubtractAction(m);
1781	>
1782	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1783	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1784	>	final Integer w1 =  fFirst ? v1 : v2;
1785	>	final Integer w2 = !fFirst ? v1 : v2;
1786	>
1787	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1788	>	assertTrue(fst.complete(w1));
1789	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1790	>	checkIncomplete(h1);
1791	>	checkIncomplete(h2);
1792	>	r1.assertNotInvoked();
1793	>	r2.assertNotInvoked();
1794	>	assertTrue(snd.complete(w2));
1795	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1796
1797	<	checkCompletedNormally(h, null);
1798	<	r.assertValue(subtract(v1, v2));
1797	>	checkCompletedNormally(h1, null);
1798	>	checkCompletedNormally(h2, null);
1799	>	checkCompletedNormally(h3, null);
1800	>	r1.assertValue(subtract(v1, v2));
1801	>	r2.assertValue(subtract(v1, v2));
1802	>	r3.assertValue(subtract(v1, v2));
1803		checkCompletedNormally(f, v1);
1804		checkCompletedNormally(g, v2);
1805		}}
#	Line 1480 | Line 1808 | public class CompletableFutureTest exten
1808		* thenAcceptBoth result completes exceptionally after exceptional
1809		* completion of either source
1810		*/
1811	<	public void testThenAcceptBoth_exceptionalCompletion() {
1811	>	public void testThenAcceptBoth_exceptionalCompletion() throws Throwable {
1812		for (ExecutionMode m : ExecutionMode.values())
1485	–	for (boolean createIncomplete : new boolean[] { true, false })
1813		for (boolean fFirst : new boolean[] { true, false })
1814	+	for (boolean failFirst : new boolean[] { true, false })
1815		for (Integer v1 : new Integer[] { 1, null })
1816		{
1817		final CompletableFuture<Integer> f = new CompletableFuture<>();
1818		final CompletableFuture<Integer> g = new CompletableFuture<>();
1819		final CFException ex = new CFException();
1820	<	final SubtractAction r = new SubtractAction(m);
1821	<
1822	<	(fFirst ? f : g).complete(v1);
1823	<	if (!createIncomplete)
1824	<	(!fFirst ? f : g).completeExceptionally(ex);
1825	<	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1826	<	if (createIncomplete) {
1827	<	checkIncomplete(h);
1828	<	(!fFirst ? f : g).completeExceptionally(ex);
1829	<	}
1830	<
1831	<	checkCompletedWithWrappedCFException(h, ex);
1832	<	r.assertNotInvoked();
1833	<	checkCompletedNormally(fFirst ? f : g, v1);
1834	<	checkCompletedWithWrappedCFException(!fFirst ? f : g, ex);
1820	>	final SubtractAction r1 = new SubtractAction(m);
1821	>	final SubtractAction r2 = new SubtractAction(m);
1822	>	final SubtractAction r3 = new SubtractAction(m);
1823	>
1824	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1825	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1826	>	final Callable<Boolean> complete1 = failFirst ?
1827	>	() -> fst.completeExceptionally(ex) :
1828	>	() -> fst.complete(v1);
1829	>	final Callable<Boolean> complete2 = failFirst ?
1830	>	() -> snd.complete(v1) :
1831	>	() -> snd.completeExceptionally(ex);
1832	>
1833	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1834	>	assertTrue(complete1.call());
1835	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1836	>	checkIncomplete(h1);
1837	>	checkIncomplete(h2);
1838	>	assertTrue(complete2.call());
1839	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1840	>
1841	>	checkCompletedWithWrappedException(h1, ex);
1842	>	checkCompletedWithWrappedException(h2, ex);
1843	>	checkCompletedWithWrappedException(h3, ex);
1844	>	r1.assertNotInvoked();
1845	>	r2.assertNotInvoked();
1846	>	r3.assertNotInvoked();
1847	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1848	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
1849		}}
1850
1851		/**
1852		* thenAcceptBoth result completes exceptionally if either source cancelled
1853		*/
1854	<	public void testThenAcceptBoth_sourceCancelled() {
1854	>	public void testThenAcceptBoth_sourceCancelled() throws Throwable {
1855		for (ExecutionMode m : ExecutionMode.values())
1856		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1515	–	for (boolean createIncomplete : new boolean[] { true, false })
1857		for (boolean fFirst : new boolean[] { true, false })
1858	+	for (boolean failFirst : new boolean[] { true, false })
1859		for (Integer v1 : new Integer[] { 1, null })
1860		{
1861		final CompletableFuture<Integer> f = new CompletableFuture<>();
1862		final CompletableFuture<Integer> g = new CompletableFuture<>();
1863	<	final SubtractAction r = new SubtractAction(m);
1863	>	final SubtractAction r1 = new SubtractAction(m);
1864	>	final SubtractAction r2 = new SubtractAction(m);
1865	>	final SubtractAction r3 = new SubtractAction(m);
1866
1867	<	(fFirst ? f : g).complete(v1);
1868	<	if (!createIncomplete)
1869	<	assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
1870	<	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1871	<	if (createIncomplete) {
1872	<	checkIncomplete(h);
1873	<	assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
1874	<	}
1867	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1868	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1869	>	final Callable<Boolean> complete1 = failFirst ?
1870	>	() -> fst.cancel(mayInterruptIfRunning) :
1871	>	() -> fst.complete(v1);
1872	>	final Callable<Boolean> complete2 = failFirst ?
1873	>	() -> snd.complete(v1) :
1874	>	() -> snd.cancel(mayInterruptIfRunning);
1875
1876	<	checkCompletedWithWrappedCancellationException(h);
1877	<	checkCancelled(!fFirst ? f : g);
1878	<	r.assertNotInvoked();
1879	<	checkCompletedNormally(fFirst ? f : g, v1);
1876	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1877	>	assertTrue(complete1.call());
1878	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1879	>	checkIncomplete(h1);
1880	>	checkIncomplete(h2);
1881	>	assertTrue(complete2.call());
1882	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1883	>
1884	>	checkCompletedWithWrappedCancellationException(h1);
1885	>	checkCompletedWithWrappedCancellationException(h2);
1886	>	checkCompletedWithWrappedCancellationException(h3);
1887	>	r1.assertNotInvoked();
1888	>	r2.assertNotInvoked();
1889	>	r3.assertNotInvoked();
1890	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1891	>	checkCancelled(failFirst ? fst : snd);
1892		}}
1893
1894		/**
#	Line 1546 | Line 1902 | public class CompletableFutureTest exten
1902		{
1903		final CompletableFuture<Integer> f = new CompletableFuture<>();
1904		final CompletableFuture<Integer> g = new CompletableFuture<>();
1905	<	final FailingBiConsumer r = new FailingBiConsumer(m);
1906	<	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1907	<
1908	<	if (fFirst) {
1909	<	f.complete(v1);
1910	<	g.complete(v2);
1911	<	} else {
1912	<	g.complete(v2);
1913	<	f.complete(v1);
1914	<	}
1905	>	final FailingBiConsumer r1 = new FailingBiConsumer(m);
1906	>	final FailingBiConsumer r2 = new FailingBiConsumer(m);
1907	>	final FailingBiConsumer r3 = new FailingBiConsumer(m);
1908	>
1909	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1910	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1911	>	final Integer w1 =  fFirst ? v1 : v2;
1912	>	final Integer w2 = !fFirst ? v1 : v2;
1913	>
1914	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1915	>	assertTrue(fst.complete(w1));
1916	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1917	>	assertTrue(snd.complete(w2));
1918	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1919
1920	<	checkCompletedWithWrappedCFException(h);
1920	>	checkCompletedWithWrappedCFException(h1);
1921	>	checkCompletedWithWrappedCFException(h2);
1922	>	checkCompletedWithWrappedCFException(h3);
1923	>	r1.assertInvoked();
1924	>	r2.assertInvoked();
1925	>	r3.assertInvoked();
1926		checkCompletedNormally(f, v1);
1927		checkCompletedNormally(g, v2);
1928		}}
#	Line 1568 | Line 1933 | public class CompletableFutureTest exten
1933		*/
1934		public void testRunAfterBoth_normalCompletion() {
1935		for (ExecutionMode m : ExecutionMode.values())
1571	–	for (boolean createIncomplete : new boolean[] { true, false })
1936		for (boolean fFirst : new boolean[] { true, false })
1937		for (Integer v1 : new Integer[] { 1, null })
1938		for (Integer v2 : new Integer[] { 2, null })
1939		{
1940		final CompletableFuture<Integer> f = new CompletableFuture<>();
1941		final CompletableFuture<Integer> g = new CompletableFuture<>();
1942	<	final Noop r = new Noop(m);
1943	<
1944	<	if (fFirst) f.complete(v1); else g.complete(v2);
1945	<	if (!createIncomplete)
1946	<	if (!fFirst) f.complete(v1); else g.complete(v2);
1947	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1948	<	if (createIncomplete) {
1949	<	checkIncomplete(h);
1950	<	r.assertNotInvoked();
1951	<	if (!fFirst) f.complete(v1); else g.complete(v2);
1952	<	}
1942	>	final Noop r1 = new Noop(m);
1943	>	final Noop r2 = new Noop(m);
1944	>	final Noop r3 = new Noop(m);
1945	>
1946	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1947	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1948	>	final Integer w1 =  fFirst ? v1 : v2;
1949	>	final Integer w2 = !fFirst ? v1 : v2;
1950	>
1951	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
1952	>	assertTrue(fst.complete(w1));
1953	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
1954	>	checkIncomplete(h1);
1955	>	checkIncomplete(h2);
1956	>	r1.assertNotInvoked();
1957	>	r2.assertNotInvoked();
1958	>	assertTrue(snd.complete(w2));
1959	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
1960
1961	<	checkCompletedNormally(h, null);
1962	<	r.assertInvoked();
1961	>	checkCompletedNormally(h1, null);
1962	>	checkCompletedNormally(h2, null);
1963	>	checkCompletedNormally(h3, null);
1964	>	r1.assertInvoked();
1965	>	r2.assertInvoked();
1966	>	r3.assertInvoked();
1967		checkCompletedNormally(f, v1);
1968		checkCompletedNormally(g, v2);
1969		}}
#	Line 1597 | Line 1972 | public class CompletableFutureTest exten
1972		* runAfterBoth result completes exceptionally after exceptional
1973		* completion of either source
1974		*/
1975	<	public void testRunAfterBoth_exceptionalCompletion() {
1975	>	public void testRunAfterBoth_exceptionalCompletion() throws Throwable {
1976		for (ExecutionMode m : ExecutionMode.values())
1602	–	for (boolean createIncomplete : new boolean[] { true, false })
1977		for (boolean fFirst : new boolean[] { true, false })
1978	+	for (boolean failFirst : new boolean[] { true, false })
1979		for (Integer v1 : new Integer[] { 1, null })
1980		{
1981		final CompletableFuture<Integer> f = new CompletableFuture<>();
1982		final CompletableFuture<Integer> g = new CompletableFuture<>();
1983		final CFException ex = new CFException();
1984	<	final Noop r = new Noop(m);
1985	<
1986	<	(fFirst ? f : g).complete(v1);
1987	<	if (!createIncomplete)
1988	<	(!fFirst ? f : g).completeExceptionally(ex);
1989	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1990	<	if (createIncomplete) {
1991	<	checkIncomplete(h);
1992	<	(!fFirst ? f : g).completeExceptionally(ex);
1993	<	}
1994	<
1995	<	checkCompletedWithWrappedCFException(h, ex);
1996	<	r.assertNotInvoked();
1997	<	checkCompletedNormally(fFirst ? f : g, v1);
1998	<	checkCompletedWithWrappedCFException(!fFirst ? f : g, ex);
1984	>	final Noop r1 = new Noop(m);
1985	>	final Noop r2 = new Noop(m);
1986	>	final Noop r3 = new Noop(m);
1987	>
1988	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1989	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1990	>	final Callable<Boolean> complete1 = failFirst ?
1991	>	() -> fst.completeExceptionally(ex) :
1992	>	() -> fst.complete(v1);
1993	>	final Callable<Boolean> complete2 = failFirst ?
1994	>	() -> snd.complete(v1) :
1995	>	() -> snd.completeExceptionally(ex);
1996	>
1997	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
1998	>	assertTrue(complete1.call());
1999	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2000	>	checkIncomplete(h1);
2001	>	checkIncomplete(h2);
2002	>	assertTrue(complete2.call());
2003	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2004	>
2005	>	checkCompletedWithWrappedException(h1, ex);
2006	>	checkCompletedWithWrappedException(h2, ex);
2007	>	checkCompletedWithWrappedException(h3, ex);
2008	>	r1.assertNotInvoked();
2009	>	r2.assertNotInvoked();
2010	>	r3.assertNotInvoked();
2011	>	checkCompletedNormally(failFirst ? snd : fst, v1);
2012	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
2013		}}
2014
2015		/**
2016		* runAfterBoth result completes exceptionally if either source cancelled
2017		*/
2018	<	public void testRunAfterBoth_sourceCancelled() {
2018	>	public void testRunAfterBoth_sourceCancelled() throws Throwable {
2019		for (ExecutionMode m : ExecutionMode.values())
2020		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1632	–	for (boolean createIncomplete : new boolean[] { true, false })
2021		for (boolean fFirst : new boolean[] { true, false })
2022	+	for (boolean failFirst : new boolean[] { true, false })
2023		for (Integer v1 : new Integer[] { 1, null })
2024		{
2025		final CompletableFuture<Integer> f = new CompletableFuture<>();
2026		final CompletableFuture<Integer> g = new CompletableFuture<>();
2027	<	final Noop r = new Noop(m);
2027	>	final Noop r1 = new Noop(m);
2028	>	final Noop r2 = new Noop(m);
2029	>	final Noop r3 = new Noop(m);
2030
2031	+	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2032	+	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2033	+	final Callable<Boolean> complete1 = failFirst ?
2034	+	() -> fst.cancel(mayInterruptIfRunning) :
2035	+	() -> fst.complete(v1);
2036	+	final Callable<Boolean> complete2 = failFirst ?
2037	+	() -> snd.complete(v1) :
2038	+	() -> snd.cancel(mayInterruptIfRunning);
2039
2040	<	(fFirst ? f : g).complete(v1);
2041	<	if (!createIncomplete)
2042	<	assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
2043	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
2044	<	if (createIncomplete) {
2045	<	checkIncomplete(h);
2046	<	assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
1648	<	}
2040	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2041	>	assertTrue(complete1.call());
2042	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2043	>	checkIncomplete(h1);
2044	>	checkIncomplete(h2);
2045	>	assertTrue(complete2.call());
2046	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2047
2048	<	checkCompletedWithWrappedCancellationException(h);
2049	<	checkCancelled(!fFirst ? f : g);
2050	<	r.assertNotInvoked();
2051	<	checkCompletedNormally(fFirst ? f : g, v1);
2048	>	checkCompletedWithWrappedCancellationException(h1);
2049	>	checkCompletedWithWrappedCancellationException(h2);
2050	>	checkCompletedWithWrappedCancellationException(h3);
2051	>	r1.assertNotInvoked();
2052	>	r2.assertNotInvoked();
2053	>	r3.assertNotInvoked();
2054	>	checkCompletedNormally(failFirst ? snd : fst, v1);
2055	>	checkCancelled(failFirst ? fst : snd);
2056		}}
2057
2058		/**
#	Line 1666 | Line 2068 | public class CompletableFutureTest exten
2068		final CompletableFuture<Integer> g = new CompletableFuture<>();
2069		final FailingRunnable r1 = new FailingRunnable(m);
2070		final FailingRunnable r2 = new FailingRunnable(m);
2071	+	final FailingRunnable r3 = new FailingRunnable(m);
2072
2073	<	CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2074	<	if (fFirst) {
2075	<	f.complete(v1);
2076	<	g.complete(v2);
2077	<	} else {
2078	<	g.complete(v2);
2079	<	f.complete(v1);
2080	<	}
2081	<	CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2073	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2074	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2075	>	final Integer w1 =  fFirst ? v1 : v2;
2076	>	final Integer w2 = !fFirst ? v1 : v2;
2077	>
2078	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2079	>	assertTrue(fst.complete(w1));
2080	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2081	>	assertTrue(snd.complete(w2));
2082	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2083
2084		checkCompletedWithWrappedCFException(h1);
2085		checkCompletedWithWrappedCFException(h2);
2086	+	checkCompletedWithWrappedCFException(h3);
2087	+	r1.assertInvoked();
2088	+	r2.assertInvoked();
2089	+	r3.assertInvoked();
2090		checkCompletedNormally(f, v1);
2091		checkCompletedNormally(g, v2);
2092		}}
#	Line 1752 | Line 2160 | public class CompletableFutureTest exten
2160		rs[0].assertNotInvoked();
2161		rs[1].assertNotInvoked();
2162		f.completeExceptionally(ex);
2163	<	checkCompletedWithWrappedCFException(h0, ex);
2164	<	checkCompletedWithWrappedCFException(h1, ex);
2163	>	checkCompletedWithWrappedException(h0, ex);
2164	>	checkCompletedWithWrappedException(h1, ex);
2165		final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2166		final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2167	<	checkCompletedWithWrappedCFException(h2, ex);
2168	<	checkCompletedWithWrappedCFException(h3, ex);
2167	>	checkCompletedWithWrappedException(h2, ex);
2168	>	checkCompletedWithWrappedException(h3, ex);
2169		g.complete(v1);
2170
2171		// unspecified behavior - both source completions available
#	Line 1767 | Line 2175 | public class CompletableFutureTest exten
2175		assertEquals(inc(v1), h4.join());
2176		rs[4].assertValue(inc(v1));
2177		} catch (CompletionException ok) {
2178	<	checkCompletedWithWrappedCFException(h4, ex);
2178	>	checkCompletedWithWrappedException(h4, ex);
2179		rs[4].assertNotInvoked();
2180		}
2181		try {
2182		assertEquals(inc(v1), h5.join());
2183		rs[5].assertValue(inc(v1));
2184		} catch (CompletionException ok) {
2185	<	checkCompletedWithWrappedCFException(h5, ex);
2185	>	checkCompletedWithWrappedException(h5, ex);
2186		rs[5].assertNotInvoked();
2187		}
2188
2189	<	checkCompletedWithWrappedCFException(f, ex);
2189	>	checkCompletedExceptionally(f, ex);
2190		checkCompletedNormally(g, v1);
2191	<	checkCompletedWithWrappedCFException(h0, ex);
2192	<	checkCompletedWithWrappedCFException(h1, ex);
2193	<	checkCompletedWithWrappedCFException(h2, ex);
2194	<	checkCompletedWithWrappedCFException(h3, ex);
2195	<	checkCompletedWithWrappedCFException(h4, ex);
2191	>	checkCompletedWithWrappedException(h0, ex);
2192	>	checkCompletedWithWrappedException(h1, ex);
2193	>	checkCompletedWithWrappedException(h2, ex);
2194	>	checkCompletedWithWrappedException(h3, ex);
2195	>	checkCompletedWithWrappedException(h4, ex);
2196		for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2197		}}
2198
#	Line 1801 | Line 2209 | public class CompletableFutureTest exten
2209
2210		final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2211		final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2212	<	if (fFirst) {
2213	<	f.complete(v1);
1806	<	g.completeExceptionally(ex);
1807	<	} else {
1808	<	g.completeExceptionally(ex);
1809	<	f.complete(v1);
1810	<	}
2212	>	assertTrue(fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2213	>	assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2214		final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2215		final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2216
#	Line 1816 | Line 2219 | public class CompletableFutureTest exten
2219		assertEquals(inc(v1), h0.join());
2220		rs[0].assertValue(inc(v1));
2221		} catch (CompletionException ok) {
2222	<	checkCompletedWithWrappedCFException(h0, ex);
2222	>	checkCompletedWithWrappedException(h0, ex);
2223		rs[0].assertNotInvoked();
2224		}
2225		try {
2226		assertEquals(inc(v1), h1.join());
2227		rs[1].assertValue(inc(v1));
2228		} catch (CompletionException ok) {
2229	<	checkCompletedWithWrappedCFException(h1, ex);
2229	>	checkCompletedWithWrappedException(h1, ex);
2230		rs[1].assertNotInvoked();
2231		}
2232		try {
2233		assertEquals(inc(v1), h2.join());
2234		rs[2].assertValue(inc(v1));
2235		} catch (CompletionException ok) {
2236	<	checkCompletedWithWrappedCFException(h2, ex);
2236	>	checkCompletedWithWrappedException(h2, ex);
2237		rs[2].assertNotInvoked();
2238		}
2239		try {
2240		assertEquals(inc(v1), h3.join());
2241		rs[3].assertValue(inc(v1));
2242		} catch (CompletionException ok) {
2243	<	checkCompletedWithWrappedCFException(h3, ex);
2243	>	checkCompletedWithWrappedException(h3, ex);
2244		rs[3].assertNotInvoked();
2245		}
2246
2247		checkCompletedNormally(f, v1);
2248	<	checkCompletedWithWrappedCFException(g, ex);
2248	>	checkCompletedExceptionally(g, ex);
2249		}}
2250
2251		/**
#	Line 1913 | Line 2316 | public class CompletableFutureTest exten
2316
2317		final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2318		final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2319	<	if (fFirst) {
2320	<	f.complete(v1);
1918	<	g.cancel(mayInterruptIfRunning);
1919	<	} else {
1920	<	g.cancel(mayInterruptIfRunning);
1921	<	f.complete(v1);
1922	<	}
2319	>	assertTrue(fFirst ? f.complete(v1) : g.cancel(mayInterruptIfRunning));
2320	>	assertTrue(!fFirst ? f.complete(v1) : g.cancel(mayInterruptIfRunning));
2321		final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2322		final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2323
#	Line 2071 | Line 2469 | public class CompletableFutureTest exten
2469		rs[0].assertNotInvoked();
2470		rs[1].assertNotInvoked();
2471		f.completeExceptionally(ex);
2472	<	checkCompletedWithWrappedCFException(h0, ex);
2473	<	checkCompletedWithWrappedCFException(h1, ex);
2472	>	checkCompletedWithWrappedException(h0, ex);
2473	>	checkCompletedWithWrappedException(h1, ex);
2474		final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2475		final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2476	<	checkCompletedWithWrappedCFException(h2, ex);
2477	<	checkCompletedWithWrappedCFException(h3, ex);
2476	>	checkCompletedWithWrappedException(h2, ex);
2477	>	checkCompletedWithWrappedException(h3, ex);
2478
2479		g.complete(v1);
2480
#	Line 2087 | Line 2485 | public class CompletableFutureTest exten
2485		assertNull(h4.join());
2486		rs[4].assertValue(v1);
2487		} catch (CompletionException ok) {
2488	<	checkCompletedWithWrappedCFException(h4, ex);
2488	>	checkCompletedWithWrappedException(h4, ex);
2489		rs[4].assertNotInvoked();
2490		}
2491		try {
2492		assertNull(h5.join());
2493		rs[5].assertValue(v1);
2494		} catch (CompletionException ok) {
2495	<	checkCompletedWithWrappedCFException(h5, ex);
2495	>	checkCompletedWithWrappedException(h5, ex);
2496		rs[5].assertNotInvoked();
2497		}
2498
2499	<	checkCompletedWithWrappedCFException(f, ex);
2499	>	checkCompletedExceptionally(f, ex);
2500		checkCompletedNormally(g, v1);
2501	<	checkCompletedWithWrappedCFException(h0, ex);
2502	<	checkCompletedWithWrappedCFException(h1, ex);
2503	<	checkCompletedWithWrappedCFException(h2, ex);
2504	<	checkCompletedWithWrappedCFException(h3, ex);
2505	<	checkCompletedWithWrappedCFException(h4, ex);
2501	>	checkCompletedWithWrappedException(h0, ex);
2502	>	checkCompletedWithWrappedException(h1, ex);
2503	>	checkCompletedWithWrappedException(h2, ex);
2504	>	checkCompletedWithWrappedException(h3, ex);
2505	>	checkCompletedWithWrappedException(h4, ex);
2506		for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2507		}}
2508
#	Line 2121 | Line 2519 | public class CompletableFutureTest exten
2519
2520		final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2521		final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2522	<	if (fFirst) {
2523	<	f.complete(v1);
2126	<	g.completeExceptionally(ex);
2127	<	} else {
2128	<	g.completeExceptionally(ex);
2129	<	f.complete(v1);
2130	<	}
2522	>	assertTrue(fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2523	>	assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2524		final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2525		final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2526
#	Line 2136 | Line 2529 | public class CompletableFutureTest exten
2529		assertEquals(null, h0.join());
2530		rs[0].assertValue(v1);
2531		} catch (CompletionException ok) {
2532	<	checkCompletedWithWrappedCFException(h0, ex);
2532	>	checkCompletedWithWrappedException(h0, ex);
2533		rs[0].assertNotInvoked();
2534		}
2535		try {
2536		assertEquals(null, h1.join());
2537		rs[1].assertValue(v1);
2538		} catch (CompletionException ok) {
2539	<	checkCompletedWithWrappedCFException(h1, ex);
2539	>	checkCompletedWithWrappedException(h1, ex);
2540		rs[1].assertNotInvoked();
2541		}
2542		try {
2543		assertEquals(null, h2.join());
2544		rs[2].assertValue(v1);
2545		} catch (CompletionException ok) {
2546	<	checkCompletedWithWrappedCFException(h2, ex);
2546	>	checkCompletedWithWrappedException(h2, ex);
2547		rs[2].assertNotInvoked();
2548		}
2549		try {
2550		assertEquals(null, h3.join());
2551		rs[3].assertValue(v1);
2552		} catch (CompletionException ok) {
2553	<	checkCompletedWithWrappedCFException(h3, ex);
2553	>	checkCompletedWithWrappedException(h3, ex);
2554		rs[3].assertNotInvoked();
2555		}
2556
2557		checkCompletedNormally(f, v1);
2558	<	checkCompletedWithWrappedCFException(g, ex);
2558	>	checkCompletedExceptionally(g, ex);
2559		}}
2560
2561		/**
#	Line 2330 | Line 2723 | public class CompletableFutureTest exten
2723		checkIncomplete(h1);
2724		rs[0].assertNotInvoked();
2725		rs[1].assertNotInvoked();
2726	<	f.completeExceptionally(ex);
2727	<	checkCompletedWithWrappedCFException(h0, ex);
2728	<	checkCompletedWithWrappedCFException(h1, ex);
2726	>	assertTrue(f.completeExceptionally(ex));
2727	>	checkCompletedWithWrappedException(h0, ex);
2728	>	checkCompletedWithWrappedException(h1, ex);
2729		final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2730		final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2731	<	checkCompletedWithWrappedCFException(h2, ex);
2732	<	checkCompletedWithWrappedCFException(h3, ex);
2731	>	checkCompletedWithWrappedException(h2, ex);
2732	>	checkCompletedWithWrappedException(h3, ex);
2733
2734	<	g.complete(v1);
2734	>	assertTrue(g.complete(v1));
2735
2736		// unspecified behavior - both source completions available
2737		final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
#	Line 2347 | Line 2740 | public class CompletableFutureTest exten
2740		assertNull(h4.join());
2741		rs[4].assertInvoked();
2742		} catch (CompletionException ok) {
2743	<	checkCompletedWithWrappedCFException(h4, ex);
2743	>	checkCompletedWithWrappedException(h4, ex);
2744		rs[4].assertNotInvoked();
2745		}
2746		try {
2747		assertNull(h5.join());
2748		rs[5].assertInvoked();
2749		} catch (CompletionException ok) {
2750	<	checkCompletedWithWrappedCFException(h5, ex);
2750	>	checkCompletedWithWrappedException(h5, ex);
2751		rs[5].assertNotInvoked();
2752		}
2753
2754	<	checkCompletedWithWrappedCFException(f, ex);
2754	>	checkCompletedExceptionally(f, ex);
2755		checkCompletedNormally(g, v1);
2756	<	checkCompletedWithWrappedCFException(h0, ex);
2757	<	checkCompletedWithWrappedCFException(h1, ex);
2758	<	checkCompletedWithWrappedCFException(h2, ex);
2759	<	checkCompletedWithWrappedCFException(h3, ex);
2760	<	checkCompletedWithWrappedCFException(h4, ex);
2756	>	checkCompletedWithWrappedException(h0, ex);
2757	>	checkCompletedWithWrappedException(h1, ex);
2758	>	checkCompletedWithWrappedException(h2, ex);
2759	>	checkCompletedWithWrappedException(h3, ex);
2760	>	checkCompletedWithWrappedException(h4, ex);
2761		for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2762		}}
2763
2764	+	public void testRunAfterEither_exceptionalCompletion2() {
2765	+	for (ExecutionMode m : ExecutionMode.values())
2766	+	for (boolean fFirst : new boolean[] { true, false })
2767	+	for (Integer v1 : new Integer[] { 1, null })
2768	+	{
2769	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
2770	+	final CompletableFuture<Integer> g = new CompletableFuture<>();
2771	+	final CFException ex = new CFException();
2772	+	final Noop[] rs = new Noop[6];
2773	+	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2774	+
2775	+	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2776	+	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2777	+	assertTrue( fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2778	+	assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2779	+	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2780	+	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2781	+
2782	+	// unspecified behavior - both source completions available
2783	+	try {
2784	+	assertEquals(null, h0.join());
2785	+	rs[0].assertInvoked();
2786	+	} catch (CompletionException ok) {
2787	+	checkCompletedWithWrappedException(h0, ex);
2788	+	rs[0].assertNotInvoked();
2789	+	}
2790	+	try {
2791	+	assertEquals(null, h1.join());
2792	+	rs[1].assertInvoked();
2793	+	} catch (CompletionException ok) {
2794	+	checkCompletedWithWrappedException(h1, ex);
2795	+	rs[1].assertNotInvoked();
2796	+	}
2797	+	try {
2798	+	assertEquals(null, h2.join());
2799	+	rs[2].assertInvoked();
2800	+	} catch (CompletionException ok) {
2801	+	checkCompletedWithWrappedException(h2, ex);
2802	+	rs[2].assertNotInvoked();
2803	+	}
2804	+	try {
2805	+	assertEquals(null, h3.join());
2806	+	rs[3].assertInvoked();
2807	+	} catch (CompletionException ok) {
2808	+	checkCompletedWithWrappedException(h3, ex);
2809	+	rs[3].assertNotInvoked();
2810	+	}
2811	+
2812	+	checkCompletedNormally(f, v1);
2813	+	checkCompletedExceptionally(g, ex);
2814	+	}}
2815	+
2816		/**
2817		* runAfterEither result completes exceptionally if either source cancelled
2818		*/
#	Line 2395 | Line 2840 | public class CompletableFutureTest exten
2840		checkCompletedWithWrappedCancellationException(h2);
2841		checkCompletedWithWrappedCancellationException(h3);
2842
2843	<	g.complete(v1);
2843	>	assertTrue(g.complete(v1));
2844
2845		// unspecified behavior - both source completions available
2846		final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
#	Line 2439 | Line 2884 | public class CompletableFutureTest exten
2884
2885		final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2886		final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2887	<	f.complete(v1);
2887	>	assertTrue(f.complete(v1));
2888		final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2889		final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2890		checkCompletedWithWrappedCFException(h0);
#	Line 2447 | Line 2892 | public class CompletableFutureTest exten
2892		checkCompletedWithWrappedCFException(h2);
2893		checkCompletedWithWrappedCFException(h3);
2894		for (int i = 0; i < 4; i++) rs[i].assertInvoked();
2895	<	g.complete(v2);
2895	>	assertTrue(g.complete(v2));
2896		final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2897		final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2898		checkCompletedWithWrappedCFException(h4);
#	Line 2468 | Line 2913 | public class CompletableFutureTest exten
2913		{
2914		final CompletableFuture<Integer> f = new CompletableFuture<>();
2915		final CompletableFutureInc r = new CompletableFutureInc(m);
2916	<	if (!createIncomplete) f.complete(v1);
2916	>	if (!createIncomplete) assertTrue(f.complete(v1));
2917		final CompletableFuture<Integer> g = m.thenCompose(f, r);
2918	<	if (createIncomplete) f.complete(v1);
2918	>	if (createIncomplete) assertTrue(f.complete(v1));
2919
2920		checkCompletedNormally(g, inc(v1));
2921		checkCompletedNormally(f, v1);
2922	<	r.assertInvoked();
2922	>	r.assertValue(v1);
2923		}}
2924
2925		/**
#	Line 2492 | Line 2937 | public class CompletableFutureTest exten
2937		final CompletableFuture<Integer> g = m.thenCompose(f, r);
2938		if (createIncomplete) f.completeExceptionally(ex);
2939
2940	<	checkCompletedWithWrappedCFException(g, ex);
2941	<	checkCompletedWithWrappedCFException(f, ex);
2940	>	checkCompletedWithWrappedException(g, ex);
2941	>	checkCompletedExceptionally(f, ex);
2942		r.assertNotInvoked();
2943		}}
2944
#	Line 2508 | Line 2953 | public class CompletableFutureTest exten
2953		final CompletableFuture<Integer> f = new CompletableFuture<>();
2954		final FailingCompletableFutureFunction r
2955		= new FailingCompletableFutureFunction(m);
2956	<	if (!createIncomplete) f.complete(v1);
2956	>	if (!createIncomplete) assertTrue(f.complete(v1));
2957		final CompletableFuture<Integer> g = m.thenCompose(f, r);
2958	<	if (createIncomplete) f.complete(v1);
2958	>	if (createIncomplete) assertTrue(f.complete(v1));
2959
2960		checkCompletedWithWrappedCFException(g);
2961		checkCompletedNormally(f, v1);
#	Line 2537 | Line 2982 | public class CompletableFutureTest exten
2982		checkCancelled(f);
2983		}}
2984
2985	+	/**
2986	+	* thenCompose result completes exceptionally if the result of the action does
2987	+	*/
2988	+	public void testThenCompose_actionReturnsFailingFuture() {
2989	+	for (ExecutionMode m : ExecutionMode.values())
2990	+	for (int order = 0; order < 6; order++)
2991	+	for (Integer v1 : new Integer[] { 1, null })
2992	+	{
2993	+	final CFException ex = new CFException();
2994	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
2995	+	final CompletableFuture<Integer> g = new CompletableFuture<>();
2996	+	final CompletableFuture<Integer> h;
2997	+	// Test all permutations of orders
2998	+	switch (order) {
2999	+	case 0:
3000	+	assertTrue(f.complete(v1));
3001	+	assertTrue(g.completeExceptionally(ex));
3002	+	h = m.thenCompose(f, (x -> g));
3003	+	break;
3004	+	case 1:
3005	+	assertTrue(f.complete(v1));
3006	+	h = m.thenCompose(f, (x -> g));
3007	+	assertTrue(g.completeExceptionally(ex));
3008	+	break;
3009	+	case 2:
3010	+	assertTrue(g.completeExceptionally(ex));
3011	+	assertTrue(f.complete(v1));
3012	+	h = m.thenCompose(f, (x -> g));
3013	+	break;
3014	+	case 3:
3015	+	assertTrue(g.completeExceptionally(ex));
3016	+	h = m.thenCompose(f, (x -> g));
3017	+	assertTrue(f.complete(v1));
3018	+	break;
3019	+	case 4:
3020	+	h = m.thenCompose(f, (x -> g));
3021	+	assertTrue(f.complete(v1));
3022	+	assertTrue(g.completeExceptionally(ex));
3023	+	break;
3024	+	case 5:
3025	+	h = m.thenCompose(f, (x -> g));
3026	+	assertTrue(f.complete(v1));
3027	+	assertTrue(g.completeExceptionally(ex));
3028	+	break;
3029	+	default: throw new AssertionError();
3030	+	}
3031	+
3032	+	checkCompletedExceptionally(g, ex);
3033	+	checkCompletedWithWrappedException(h, ex);
3034	+	checkCompletedNormally(f, v1);
3035	+	}}
3036	+
3037		// other static methods
3038
3039		/**
#	Line 2553 | Line 3050 | public class CompletableFutureTest exten
3050		* when all components complete normally
3051		*/
3052		public void testAllOf_normal() throws Exception {
3053	<	for (int k = 1; k < 20; ++k) {
3053	>	for (int k = 1; k < 10; k++) {
3054		CompletableFuture<Integer>[] fs
3055		= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3056	<	for (int i = 0; i < k; ++i)
3056	>	for (int i = 0; i < k; i++)
3057		fs[i] = new CompletableFuture<>();
3058		CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3059	<	for (int i = 0; i < k; ++i) {
3059	>	for (int i = 0; i < k; i++) {
3060		checkIncomplete(f);
3061		checkIncomplete(CompletableFuture.allOf(fs));
3062		fs[i].complete(one);
#	Line 2570 | Line 3067 | public class CompletableFutureTest exten
3067		}
3068
3069		public void testAllOf_backwards() throws Exception {
3070	<	for (int k = 1; k < 20; ++k) {
3070	>	for (int k = 1; k < 10; k++) {
3071		CompletableFuture<Integer>[] fs
3072		= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3073	<	for (int i = 0; i < k; ++i)
3073	>	for (int i = 0; i < k; i++)
3074		fs[i] = new CompletableFuture<>();
3075		CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3076		for (int i = k - 1; i >= 0; i--) {
#	Line 2586 | Line 3083 | public class CompletableFutureTest exten
3083		}
3084		}
3085
3086	+	public void testAllOf_exceptional() throws Exception {
3087	+	for (int k = 1; k < 10; k++) {
3088	+	CompletableFuture<Integer>[] fs
3089	+	= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3090	+	CFException ex = new CFException();
3091	+	for (int i = 0; i < k; i++)
3092	+	fs[i] = new CompletableFuture<>();
3093	+	CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3094	+	for (int i = 0; i < k; i++) {
3095	+	checkIncomplete(f);
3096	+	checkIncomplete(CompletableFuture.allOf(fs));
3097	+	if (i != k / 2) {
3098	+	fs[i].complete(i);
3099	+	checkCompletedNormally(fs[i], i);
3100	+	} else {
3101	+	fs[i].completeExceptionally(ex);
3102	+	checkCompletedExceptionally(fs[i], ex);
3103	+	}
3104	+	}
3105	+	checkCompletedWithWrappedException(f, ex);
3106	+	checkCompletedWithWrappedException(CompletableFuture.allOf(fs), ex);
3107	+	}
3108	+	}
3109	+
3110		/**
3111		* anyOf(no component futures) returns an incomplete future
3112		*/
3113		public void testAnyOf_empty() throws Exception {
3114	+	for (Integer v1 : new Integer[] { 1, null })
3115	+	{
3116		CompletableFuture<Object> f = CompletableFuture.anyOf();
3117		checkIncomplete(f);
3118	<	}
3118	>
3119	>	f.complete(v1);
3120	>	checkCompletedNormally(f, v1);
3121	>	}}
3122
3123		/**
3124		* anyOf returns a future completed normally with a value when
3125		* a component future does
3126		*/
3127		public void testAnyOf_normal() throws Exception {
3128	<	for (int k = 0; k < 10; ++k) {
3128	>	for (int k = 0; k < 10; k++) {
3129		CompletableFuture[] fs = new CompletableFuture[k];
3130	<	for (int i = 0; i < k; ++i)
3130	>	for (int i = 0; i < k; i++)
3131		fs[i] = new CompletableFuture<>();
3132		CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3133		checkIncomplete(f);
3134	<	for (int i = 0; i < k; ++i) {
3135	<	fs[i].complete(one);
3136	<	checkCompletedNormally(f, one);
3137	<	checkCompletedNormally(CompletableFuture.anyOf(fs), one);
3134	>	for (int i = 0; i < k; i++) {
3135	>	fs[i].complete(i);
3136	>	checkCompletedNormally(f, 0);
3137	>	int x = (int) CompletableFuture.anyOf(fs).join();
3138	>	assertTrue(0 <= x && x <= i);
3139	>	}
3140	>	}
3141	>	}
3142	>	public void testAnyOf_normal_backwards() throws Exception {
3143	>	for (int k = 0; k < 10; k++) {
3144	>	CompletableFuture[] fs = new CompletableFuture[k];
3145	>	for (int i = 0; i < k; i++)
3146	>	fs[i] = new CompletableFuture<>();
3147	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3148	>	checkIncomplete(f);
3149	>	for (int i = k - 1; i >= 0; i--) {
3150	>	fs[i].complete(i);
3151	>	checkCompletedNormally(f, k - 1);
3152	>	int x = (int) CompletableFuture.anyOf(fs).join();
3153	>	assertTrue(i <= x && x <= k - 1);
3154		}
3155		}
3156		}
#	Line 2617 | Line 3159 | public class CompletableFutureTest exten
3159		* anyOf result completes exceptionally when any component does.
3160		*/
3161		public void testAnyOf_exceptional() throws Exception {
3162	<	for (int k = 0; k < 10; ++k) {
3162	>	for (int k = 0; k < 10; k++) {
3163		CompletableFuture[] fs = new CompletableFuture[k];
3164	<	for (int i = 0; i < k; ++i)
3164	>	CFException[] exs = new CFException[k];
3165	>	for (int i = 0; i < k; i++) {
3166		fs[i] = new CompletableFuture<>();
3167	+	exs[i] = new CFException();
3168	+	}
3169		CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3170		checkIncomplete(f);
3171	<	for (int i = 0; i < k; ++i) {
3172	<	fs[i].completeExceptionally(new CFException());
3173	<	checkCompletedWithWrappedCFException(f);
3171	>	for (int i = 0; i < k; i++) {
3172	>	fs[i].completeExceptionally(exs[i]);
3173	>	checkCompletedWithWrappedException(f, exs[0]);
3174	>	checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3175	>	}
3176	>	}
3177	>	}
3178	>
3179	>	public void testAnyOf_exceptional_backwards() throws Exception {
3180	>	for (int k = 0; k < 10; k++) {
3181	>	CompletableFuture[] fs = new CompletableFuture[k];
3182	>	CFException[] exs = new CFException[k];
3183	>	for (int i = 0; i < k; i++) {
3184	>	fs[i] = new CompletableFuture<>();
3185	>	exs[i] = new CFException();
3186	>	}
3187	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3188	>	checkIncomplete(f);
3189	>	for (int i = k - 1; i >= 0; i--) {
3190	>	fs[i].completeExceptionally(exs[i]);
3191	>	checkCompletedWithWrappedException(f, exs[k - 1]);
3192		checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3193		}
3194		}
#	Line 2638 | Line 3201 | public class CompletableFutureTest exten
3201		CompletableFuture<Integer> f = new CompletableFuture<>();
3202		CompletableFuture<Integer> g = new CompletableFuture<>();
3203		CompletableFuture<Integer> nullFuture = (CompletableFuture<Integer>)null;
2641	–	CompletableFuture<?> h;
3204		ThreadExecutor exec = new ThreadExecutor();
3205
3206		Runnable[] throwingActions = {
3207		() -> CompletableFuture.supplyAsync(null),
3208		() -> CompletableFuture.supplyAsync(null, exec),
3209	<	() -> CompletableFuture.supplyAsync(new IntegerSupplier(ExecutionMode.DEFAULT, 42), null),
3209	>	() -> CompletableFuture.supplyAsync(new IntegerSupplier(ExecutionMode.SYNC, 42), null),
3210
3211		() -> CompletableFuture.runAsync(null),
3212		() -> CompletableFuture.runAsync(null, exec),
#	Line 2735 | Line 3297 | public class CompletableFutureTest exten
3297		() -> CompletableFuture.anyOf(null, f),
3298
3299		() -> f.obtrudeException(null),
3300	+
3301	+	() -> CompletableFuture.delayedExecutor(1L, SECONDS, null),
3302	+	() -> CompletableFuture.delayedExecutor(1L, null, new ThreadExecutor()),
3303	+	() -> CompletableFuture.delayedExecutor(1L, null),
3304	+
3305	+	() -> f.orTimeout(1L, null),
3306	+	() -> f.completeOnTimeout(42, 1L, null),
3307	+
3308	+	() -> CompletableFuture.failedFuture(null),
3309	+	() -> CompletableFuture.failedStage(null),
3310		};
3311
3312		assertThrows(NullPointerException.class, throwingActions);
#	Line 2749 | Line 3321 | public class CompletableFutureTest exten
3321		assertSame(f, f.toCompletableFuture());
3322		}
3323
3324	+	// jdk9
3325	+
3326		/**
3327	<	* whenComplete action executes on normal completion, propagating
2754	<	* source result.
3327	>	* newIncompleteFuture returns an incomplete CompletableFuture
3328		*/
3329	<	public void testWhenComplete_normalCompletion1() {
2757	<	for (ExecutionMode m : ExecutionMode.values())
2758	<	for (boolean createIncomplete : new boolean[] { true, false })
3329	>	public void testNewIncompleteFuture() {
3330		for (Integer v1 : new Integer[] { 1, null })
3331		{
3332	<	final AtomicInteger a = new AtomicInteger(0);
3333	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
3334	<	if (!createIncomplete) f.complete(v1);
3335	<	final CompletableFuture<Integer> g = m.whenComplete
3336	<	(f,
2766	<	(Integer x, Throwable t) -> {
2767	<	threadAssertSame(x, v1);
2768	<	threadAssertNull(t);
2769	<	a.getAndIncrement();
2770	<	});
2771	<	if (createIncomplete) f.complete(v1);
2772	<
2773	<	checkCompletedNormally(g, v1);
3332	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3333	>	CompletableFuture<Integer> g = f.newIncompleteFuture();
3334	>	checkIncomplete(f);
3335	>	checkIncomplete(g);
3336	>	f.complete(v1);
3337		checkCompletedNormally(f, v1);
3338	<	assertEquals(1, a.get());
3338	>	checkIncomplete(g);
3339	>	g.complete(v1);
3340	>	checkCompletedNormally(g, v1);
3341	>	assertSame(g.getClass(), CompletableFuture.class);
3342		}}
3343
3344		/**
3345	<	* whenComplete action executes on exceptional completion, propagating
2780	<	* source result.
3345	>	* completedStage returns a completed CompletionStage
3346		*/
3347	<	public void testWhenComplete_exceptionalCompletion() {
3348	<	for (ExecutionMode m : ExecutionMode.values())
3349	<	for (boolean createIncomplete : new boolean[] { true, false })
3347	>	public void testCompletedStage() {
3348	>	AtomicInteger x = new AtomicInteger(0);
3349	>	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3350	>	CompletionStage<Integer> f = CompletableFuture.completedStage(1);
3351	>	f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3352	>	assertEquals(x.get(), 1);
3353	>	assertNull(r.get());
3354	>	}
3355	>
3356	>	/**
3357	>	* defaultExecutor by default returns the commonPool if
3358	>	* it supports more than one thread.
3359	>	*/
3360	>	public void testDefaultExecutor() {
3361	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3362	>	Executor e = f.defaultExecutor();
3363	>	Executor c = ForkJoinPool.commonPool();
3364	>	if (ForkJoinPool.getCommonPoolParallelism() > 1)
3365	>	assertSame(e, c);
3366	>	else
3367	>	assertNotSame(e, c);
3368	>	}
3369	>
3370	>	/**
3371	>	* failedFuture returns a CompletableFuture completed
3372	>	* exceptionally with the given Exception
3373	>	*/
3374	>	public void testFailedFuture() {
3375	>	CFException ex = new CFException();
3376	>	CompletableFuture<Integer> f = CompletableFuture.failedFuture(ex);
3377	>	checkCompletedExceptionally(f, ex);
3378	>	}
3379	>
3380	>	/**
3381	>	* failedFuture(null) throws NPE
3382	>	*/
3383	>	public void testFailedFuture_null() {
3384	>	try {
3385	>	CompletableFuture<Integer> f = CompletableFuture.failedFuture(null);
3386	>	shouldThrow();
3387	>	} catch (NullPointerException success) {}
3388	>	}
3389	>
3390	>	/**
3391	>	* copy returns a CompletableFuture that is completed normally,
3392	>	* with the same value, when source is.
3393	>	*/
3394	>	public void testCopy() {
3395	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3396	>	CompletableFuture<Integer> g = f.copy();
3397	>	checkIncomplete(f);
3398	>	checkIncomplete(g);
3399	>	f.complete(1);
3400	>	checkCompletedNormally(f, 1);
3401	>	checkCompletedNormally(g, 1);
3402	>	}
3403	>
3404	>	/**
3405	>	* copy returns a CompletableFuture that is completed exceptionally
3406	>	* when source is.
3407	>	*/
3408	>	public void testCopy2() {
3409	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3410	>	CompletableFuture<Integer> g = f.copy();
3411	>	checkIncomplete(f);
3412	>	checkIncomplete(g);
3413	>	CFException ex = new CFException();
3414	>	f.completeExceptionally(ex);
3415	>	checkCompletedExceptionally(f, ex);
3416	>	checkCompletedWithWrappedException(g, ex);
3417	>	}
3418	>
3419	>	/**
3420	>	* minimalCompletionStage returns a CompletableFuture that is
3421	>	* completed normally, with the same value, when source is.
3422	>	*/
3423	>	public void testMinimalCompletionStage() {
3424	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3425	>	CompletionStage<Integer> g = f.minimalCompletionStage();
3426	>	AtomicInteger x = new AtomicInteger(0);
3427	>	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3428	>	checkIncomplete(f);
3429	>	g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3430	>	f.complete(1);
3431	>	checkCompletedNormally(f, 1);
3432	>	assertEquals(x.get(), 1);
3433	>	assertNull(r.get());
3434	>	}
3435	>
3436	>	/**
3437	>	* minimalCompletionStage returns a CompletableFuture that is
3438	>	* completed exceptionally when source is.
3439	>	*/
3440	>	public void testMinimalCompletionStage2() {
3441	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3442	>	CompletionStage<Integer> g = f.minimalCompletionStage();
3443	>	AtomicInteger x = new AtomicInteger(0);
3444	>	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3445	>	g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3446	>	checkIncomplete(f);
3447	>	CFException ex = new CFException();
3448	>	f.completeExceptionally(ex);
3449	>	checkCompletedExceptionally(f, ex);
3450	>	assertEquals(x.get(), 0);
3451	>	assertEquals(r.get().getCause(), ex);
3452	>	}
3453	>
3454	>	/**
3455	>	* failedStage returns a CompletionStage completed
3456	>	* exceptionally with the given Exception
3457	>	*/
3458	>	public void testFailedStage() {
3459	>	CFException ex = new CFException();
3460	>	CompletionStage<Integer> f = CompletableFuture.failedStage(ex);
3461	>	AtomicInteger x = new AtomicInteger(0);
3462	>	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3463	>	f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3464	>	assertEquals(x.get(), 0);
3465	>	assertEquals(r.get(), ex);
3466	>	}
3467	>
3468	>	/**
3469	>	* completeAsync completes with value of given supplier
3470	>	*/
3471	>	public void testCompleteAsync() {
3472		for (Integer v1 : new Integer[] { 1, null })
3473		{
3474	<	final AtomicInteger a = new AtomicInteger(0);
3475	<	final CFException ex = new CFException();
3476	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
3477	<	if (!createIncomplete) f.completeExceptionally(ex);
2791	<	final CompletableFuture<Integer> g = m.whenComplete
2792	<	(f,
2793	<	(Integer x, Throwable t) -> {
2794	<	threadAssertNull(x);
2795	<	threadAssertSame(t, ex);
2796	<	a.getAndIncrement();
2797	<	});
2798	<	if (createIncomplete) f.completeExceptionally(ex);
2799	<	checkCompletedWithWrappedCFException(f, ex);
2800	<	checkCompletedWithWrappedCFException(g, ex);
2801	<	assertEquals(1, a.get());
3474	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3475	>	f.completeAsync(() -> v1);
3476	>	f.join();
3477	>	checkCompletedNormally(f, v1);
3478		}}
3479
3480		/**
3481	<	* whenComplete action executes on cancelled source, propagating
2806	<	* CancellationException.
3481	>	* completeAsync completes exceptionally if given supplier throws
3482		*/
3483	<	public void testWhenComplete_sourceCancelled() {
3484	<	for (ExecutionMode m : ExecutionMode.values())
3485	<	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3486	<	for (boolean createIncomplete : new boolean[] { true, false })
3483	>	public void testCompleteAsync2() {
3484	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3485	>	CFException ex = new CFException();
3486	>	f.completeAsync(() -> {if (true) throw ex; return 1;});
3487	>	try {
3488	>	f.join();
3489	>	shouldThrow();
3490	>	} catch (CompletionException success) {}
3491	>	checkCompletedWithWrappedException(f, ex);
3492	>	}
3493	>
3494	>	/**
3495	>	* completeAsync with given executor completes with value of given supplier
3496	>	*/
3497	>	public void testCompleteAsync3() {
3498	>	for (Integer v1 : new Integer[] { 1, null })
3499		{
3500	<	final AtomicInteger a = new AtomicInteger(0);
3501	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
3502	<	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
3503	<	final CompletableFuture<Integer> g = m.whenComplete
3504	<	(f,
3505	<	(Integer x, Throwable t) -> {
3506	<	threadAssertNull(x);
2820	<	threadAssertTrue(t instanceof CancellationException);
2821	<	a.getAndIncrement();
2822	<	});
2823	<	if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
3500	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3501	>	ThreadExecutor executor = new ThreadExecutor();
3502	>	f.completeAsync(() -> v1, executor);
3503	>	assertSame(v1, f.join());
3504	>	checkCompletedNormally(f, v1);
3505	>	assertEquals(1, executor.count.get());
3506	>	}}
3507
3508	<	//try { g.join(); } catch (Throwable t) { throw new Error(t); }
3509	<	checkCompletedWithWrappedCancellationException(g);
3510	<	checkCancelled(f);
3511	<	assertEquals(1, a.get());
3508	>	/**
3509	>	* completeAsync with given executor completes exceptionally if
3510	>	* given supplier throws
3511	>	*/
3512	>	public void testCompleteAsync4() {
3513	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3514	>	CFException ex = new CFException();
3515	>	ThreadExecutor executor = new ThreadExecutor();
3516	>	f.completeAsync(() -> {if (true) throw ex; return 1;}, executor);
3517	>	try {
3518	>	f.join();
3519	>	shouldThrow();
3520	>	} catch (CompletionException success) {}
3521	>	checkCompletedWithWrappedException(f, ex);
3522	>	assertEquals(1, executor.count.get());
3523	>	}
3524	>
3525	>	/**
3526	>	* orTimeout completes with TimeoutException if not complete
3527	>	*/
3528	>	public void testOrTimeout_timesOut() {
3529	>	long timeoutMillis = timeoutMillis();
3530	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3531	>	long startTime = System.nanoTime();
3532	>	f.orTimeout(timeoutMillis, MILLISECONDS);
3533	>	checkCompletedWithTimeoutException(f);
3534	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3535	>	}
3536	>
3537	>	/**
3538	>	* orTimeout completes normally if completed before timeout
3539	>	*/
3540	>	public void testOrTimeout_completed() {
3541	>	for (Integer v1 : new Integer[] { 1, null })
3542	>	{
3543	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3544	>	CompletableFuture<Integer> g = new CompletableFuture<>();
3545	>	long startTime = System.nanoTime();
3546	>	f.complete(v1);
3547	>	f.orTimeout(LONG_DELAY_MS, MILLISECONDS);
3548	>	g.orTimeout(LONG_DELAY_MS, MILLISECONDS);
3549	>	g.complete(v1);
3550	>	checkCompletedNormally(f, v1);
3551	>	checkCompletedNormally(g, v1);
3552	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3553		}}
3554
3555		/**
3556	<	* If a whenComplete action throws an exception when triggered by
2833	<	* a normal completion, it completes exceptionally
3556	>	* completeOnTimeout completes with given value if not complete
3557		*/
3558	<	public void testWhenComplete_actionFailed() {
3559	<	for (boolean createIncomplete : new boolean[] { true, false })
3560	<	for (ExecutionMode m : ExecutionMode.values())
3558	>	public void testCompleteOnTimeout_timesOut() {
3559	>	testInParallel(() -> testCompleteOnTimeout_timesOut(42),
3560	>	() -> testCompleteOnTimeout_timesOut(null));
3561	>	}
3562	>
3563	>	public void testCompleteOnTimeout_timesOut(Integer v) {
3564	>	long timeoutMillis = timeoutMillis();
3565	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3566	>	long startTime = System.nanoTime();
3567	>	f.completeOnTimeout(v, timeoutMillis, MILLISECONDS);
3568	>	assertSame(v, f.join());
3569	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3570	>	f.complete(99);         // should have no effect
3571	>	checkCompletedNormally(f, v);
3572	>	}
3573	>
3574	>	/**
3575	>	* completeOnTimeout has no effect if completed within timeout
3576	>	*/
3577	>	public void testCompleteOnTimeout_completed() {
3578		for (Integer v1 : new Integer[] { 1, null })
3579		{
3580	<	final AtomicInteger a = new AtomicInteger(0);
3581	<	final CFException ex = new CFException();
3582	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
3583	<	if (!createIncomplete) f.complete(v1);
3584	<	final CompletableFuture<Integer> g = m.whenComplete
3585	<	(f,
3586	<	(Integer x, Throwable t) -> {
2847	<	threadAssertSame(x, v1);
2848	<	threadAssertNull(t);
2849	<	a.getAndIncrement();
2850	<	throw ex;
2851	<	});
2852	<	if (createIncomplete) f.complete(v1);
3580	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3581	>	CompletableFuture<Integer> g = new CompletableFuture<>();
3582	>	long startTime = System.nanoTime();
3583	>	f.complete(v1);
3584	>	f.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS);
3585	>	g.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS);
3586	>	g.complete(v1);
3587		checkCompletedNormally(f, v1);
3588	<	checkCompletedWithWrappedCFException(g, ex);
3589	<	assertEquals(1, a.get());
3588	>	checkCompletedNormally(g, v1);
3589	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3590		}}
3591
3592		/**
3593	<	* If a whenComplete action throws an exception when triggered by
2860	<	* a source completion that also throws an exception, the source
2861	<	* exception takes precedence.
3593	>	* delayedExecutor returns an executor that delays submission
3594		*/
3595	<	public void testWhenComplete_actionFailedSourceFailed() {
3596	<	for (boolean createIncomplete : new boolean[] { true, false })
3595	>	public void testDelayedExecutor() {
3596	>	testInParallel(() -> testDelayedExecutor(null, null),
3597	>	() -> testDelayedExecutor(null, 1),
3598	>	() -> testDelayedExecutor(new ThreadExecutor(), 1),
3599	>	() -> testDelayedExecutor(new ThreadExecutor(), 1));
3600	>	}
3601	>
3602	>	public void testDelayedExecutor(Executor executor, Integer v) throws Exception {
3603	>	long timeoutMillis = timeoutMillis();
3604	>	// Use an "unreasonably long" long timeout to catch lingering threads
3605	>	long longTimeoutMillis = 1000 * 60 * 60 * 24;
3606	>	final Executor delayer, longDelayer;
3607	>	if (executor == null) {
3608	>	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS);
3609	>	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS);
3610	>	} else {
3611	>	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS, executor);
3612	>	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS, executor);
3613	>	}
3614	>	long startTime = System.nanoTime();
3615	>	CompletableFuture<Integer> f =
3616	>	CompletableFuture.supplyAsync(() -> v, delayer);
3617	>	CompletableFuture<Integer> g =
3618	>	CompletableFuture.supplyAsync(() -> v, longDelayer);
3619	>
3620	>	assertNull(g.getNow(null));
3621	>
3622	>	assertSame(v, f.get(LONG_DELAY_MS, MILLISECONDS));
3623	>	long millisElapsed = millisElapsedSince(startTime);
3624	>	assertTrue(millisElapsed >= timeoutMillis);
3625	>	assertTrue(millisElapsed < LONG_DELAY_MS / 2);
3626	>
3627	>	checkCompletedNormally(f, v);
3628	>
3629	>	checkIncomplete(g);
3630	>	assertTrue(g.cancel(true));
3631	>	}
3632	>
3633	>	//--- tests of implementation details; not part of official tck ---
3634	>
3635	>	Object resultOf(CompletableFuture<?> f) {
3636	>	try {
3637	>	java.lang.reflect.Field resultField
3638	>	= CompletableFuture.class.getDeclaredField("result");
3639	>	resultField.setAccessible(true);
3640	>	return resultField.get(f);
3641	>	} catch (Throwable t) { throw new AssertionError(t); }
3642	>	}
3643	>
3644	>	public void testExceptionPropagationReusesResultObject() {
3645	>	if (!testImplementationDetails) return;
3646		for (ExecutionMode m : ExecutionMode.values())
2866	–	for (Integer v1 : new Integer[] { 1, null })
3647		{
3648	<	final AtomicInteger a = new AtomicInteger(0);
3649	<	final CFException ex1 = new CFException();
3650	<	final CFException ex2 = new CFException();
2871	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
3648	>	final CFException ex = new CFException();
3649	>	final CompletableFuture<Integer> v42 = CompletableFuture.completedFuture(42);
3650	>	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3651
3652	<	if (!createIncomplete) f.completeExceptionally(ex1);
3653	<	final CompletableFuture<Integer> g = m.whenComplete
2875	<	(f,
2876	<	(Integer x, Throwable t) -> {
2877	<	threadAssertSame(t, ex1);
2878	<	threadAssertNull(x);
2879	<	a.getAndIncrement();
2880	<	throw ex2;
2881	<	});
2882	<	if (createIncomplete) f.completeExceptionally(ex1);
3652	>	List<Function<CompletableFuture<Integer>, CompletableFuture<?>>> funs
3653	>	= new ArrayList<>();
3654
3655	<	checkCompletedWithWrappedCFException(f, ex1);
3656	<	checkCompletedWithWrappedCFException(g, ex1);
3657	<	assertEquals(1, a.get());
3655	>	funs.add((y) -> m.thenRun(y, new Noop(m)));
3656	>	funs.add((y) -> m.thenAccept(y, new NoopConsumer(m)));
3657	>	funs.add((y) -> m.thenApply(y, new IncFunction(m)));
3658	>
3659	>	funs.add((y) -> m.runAfterEither(y, incomplete, new Noop(m)));
3660	>	funs.add((y) -> m.acceptEither(y, incomplete, new NoopConsumer(m)));
3661	>	funs.add((y) -> m.applyToEither(y, incomplete, new IncFunction(m)));
3662	>
3663	>	funs.add((y) -> m.runAfterBoth(y, v42, new Noop(m)));
3664	>	funs.add((y) -> m.thenAcceptBoth(y, v42, new SubtractAction(m)));
3665	>	funs.add((y) -> m.thenCombine(y, v42, new SubtractFunction(m)));
3666	>
3667	>	funs.add((y) -> m.whenComplete(y, (Integer r, Throwable t) -> {}));
3668	>
3669	>	funs.add((y) -> m.thenCompose(y, new CompletableFutureInc(m)));
3670	>
3671	>	funs.add((y) -> CompletableFuture.allOf(new CompletableFuture<?>[] {y, v42}));
3672	>	funs.add((y) -> CompletableFuture.anyOf(new CompletableFuture<?>[] {y, incomplete}));
3673	>
3674	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3675	>	fun : funs) {
3676	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3677	>	f.completeExceptionally(ex);
3678	>	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
3679	>	checkCompletedWithWrappedException(src, ex);
3680	>	CompletableFuture<?> dep = fun.apply(src);
3681	>	checkCompletedWithWrappedException(dep, ex);
3682	>	assertSame(resultOf(src), resultOf(dep));
3683	>	}
3684	>
3685	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3686	>	fun : funs) {
3687	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3688	>	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
3689	>	CompletableFuture<?> dep = fun.apply(src);
3690	>	f.completeExceptionally(ex);
3691	>	checkCompletedWithWrappedException(src, ex);
3692	>	checkCompletedWithWrappedException(dep, ex);
3693	>	assertSame(resultOf(src), resultOf(dep));
3694	>	}
3695	>
3696	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3697	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3698	>	fun : funs) {
3699	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3700	>	f.cancel(mayInterruptIfRunning);
3701	>	checkCancelled(f);
3702	>	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
3703	>	checkCompletedWithWrappedCancellationException(src);
3704	>	CompletableFuture<?> dep = fun.apply(src);
3705	>	checkCompletedWithWrappedCancellationException(dep);
3706	>	assertSame(resultOf(src), resultOf(dep));
3707	>	}
3708	>
3709	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3710	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3711	>	fun : funs) {
3712	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3713	>	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
3714	>	CompletableFuture<?> dep = fun.apply(src);
3715	>	f.cancel(mayInterruptIfRunning);
3716	>	checkCancelled(f);
3717	>	checkCompletedWithWrappedCancellationException(src);
3718	>	checkCompletedWithWrappedCancellationException(dep);
3719	>	assertSame(resultOf(src), resultOf(dep));
3720	>	}
3721		}}
3722
3723	+	/**
3724	+	* Minimal completion stages throw UOE for all non-CompletionStage methods
3725	+	*/
3726	+	public void testMinimalCompletionStage_minimality() {
3727	+	if (!testImplementationDetails) return;
3728	+	Function<Method, String> toSignature =
3729	+	(method) -> method.getName() + Arrays.toString(method.getParameterTypes());
3730	+	Predicate<Method> isNotStatic =
3731	+	(method) -> (method.getModifiers() & Modifier.STATIC) == 0;
3732	+	List<Method> minimalMethods =
3733	+	Stream.of(Object.class, CompletionStage.class)
3734	+	.flatMap((klazz) -> Stream.of(klazz.getMethods()))
3735	+	.filter(isNotStatic)
3736	+	.collect(Collectors.toList());
3737	+	// Methods from CompletableFuture permitted NOT to throw UOE
3738	+	String[] signatureWhitelist = {
3739	+	"newIncompleteFuture[]",
3740	+	"defaultExecutor[]",
3741	+	"minimalCompletionStage[]",
3742	+	"copy[]",
3743	+	};
3744	+	Set<String> permittedMethodSignatures =
3745	+	Stream.concat(minimalMethods.stream().map(toSignature),
3746	+	Stream.of(signatureWhitelist))
3747	+	.collect(Collectors.toSet());
3748	+	List<Method> allMethods = Stream.of(CompletableFuture.class.getMethods())
3749	+	.filter(isNotStatic)
3750	+	.filter((method) -> !permittedMethodSignatures.contains(toSignature.apply(method)))
3751	+	.collect(Collectors.toList());
3752	+
3753	+	CompletionStage<Integer> minimalStage =
3754	+	new CompletableFuture<Integer>().minimalCompletionStage();
3755	+
3756	+	List<Method> bugs = new ArrayList<>();
3757	+	for (Method method : allMethods) {
3758	+	Class<?>[] parameterTypes = method.getParameterTypes();
3759	+	Object[] args = new Object[parameterTypes.length];
3760	+	// Manufacture boxed primitives for primitive params
3761	+	for (int i = 0; i < args.length; i++) {
3762	+	Class<?> type = parameterTypes[i];
3763	+	if (parameterTypes[i] == boolean.class)
3764	+	args[i] = false;
3765	+	else if (parameterTypes[i] == int.class)
3766	+	args[i] = 0;
3767	+	else if (parameterTypes[i] == long.class)
3768	+	args[i] = 0L;
3769	+	}
3770	+	try {
3771	+	method.invoke(minimalStage, args);
3772	+	bugs.add(method);
3773	+	}
3774	+	catch (java.lang.reflect.InvocationTargetException expected) {
3775	+	if (! (expected.getCause() instanceof UnsupportedOperationException)) {
3776	+	bugs.add(method);
3777	+	// expected.getCause().printStackTrace();
3778	+	}
3779	+	}
3780	+	catch (ReflectiveOperationException bad) { throw new Error(bad); }
3781	+	}
3782	+	if (!bugs.isEmpty())
3783	+	throw new Error("Methods did not throw UOE: " + bugs.toString());
3784	+	}
3785	+
3786	+	static class Monad {
3787	+	static class ZeroException extends RuntimeException {
3788	+	public ZeroException() { super("monadic zero"); }
3789	+	}
3790	+	// "return", "unit"
3791	+	static <T> CompletableFuture<T> unit(T value) {
3792	+	return completedFuture(value);
3793	+	}
3794	+	// monadic zero ?
3795	+	static <T> CompletableFuture<T> zero() {
3796	+	return failedFuture(new ZeroException());
3797	+	}
3798	+	// >=>
3799	+	static <T,U,V> Function<T, CompletableFuture<V>> compose
3800	+	(Function<T, CompletableFuture<U>> f,
3801	+	Function<U, CompletableFuture<V>> g) {
3802	+	return (x) -> f.apply(x).thenCompose(g);
3803	+	}
3804	+
3805	+	static void assertZero(CompletableFuture<?> f) {
3806	+	try {
3807	+	f.getNow(null);
3808	+	throw new AssertionFailedError("should throw");
3809	+	} catch (CompletionException success) {
3810	+	assertTrue(success.getCause() instanceof ZeroException);
3811	+	}
3812	+	}
3813	+
3814	+	static <T> void assertFutureEquals(CompletableFuture<T> f,
3815	+	CompletableFuture<T> g) {
3816	+	T fval = null, gval = null;
3817	+	Throwable fex = null, gex = null;
3818	+
3819	+	try { fval = f.get(); }
3820	+	catch (ExecutionException ex) { fex = ex.getCause(); }
3821	+	catch (Throwable ex) { fex = ex; }
3822	+
3823	+	try { gval = g.get(); }
3824	+	catch (ExecutionException ex) { gex = ex.getCause(); }
3825	+	catch (Throwable ex) { gex = ex; }
3826	+
3827	+	if (fex != null || gex != null)
3828	+	assertSame(fex.getClass(), gex.getClass());
3829	+	else
3830	+	assertEquals(fval, gval);
3831	+	}
3832	+
3833	+	static class PlusFuture<T> extends CompletableFuture<T> {
3834	+	AtomicReference<Throwable> firstFailure = new AtomicReference<>(null);
3835	+	}
3836	+
3837	+	/** Implements "monadic plus". */
3838	+	static <T> CompletableFuture<T> plus(CompletableFuture<? extends T> f,
3839	+	CompletableFuture<? extends T> g) {
3840	+	PlusFuture<T> plus = new PlusFuture<T>();
3841	+	BiConsumer<T, Throwable> action = (T result, Throwable ex) -> {
3842	+	try {
3843	+	if (ex == null) {
3844	+	if (plus.complete(result))
3845	+	if (plus.firstFailure.get() != null)
3846	+	plus.firstFailure.set(null);
3847	+	}
3848	+	else if (plus.firstFailure.compareAndSet(null, ex)) {
3849	+	if (plus.isDone())
3850	+	plus.firstFailure.set(null);
3851	+	}
3852	+	else {
3853	+	// first failure has precedence
3854	+	Throwable first = plus.firstFailure.getAndSet(null);
3855	+
3856	+	// may fail with "Self-suppression not permitted"
3857	+	try { first.addSuppressed(ex); }
3858	+	catch (Exception ignored) {}
3859	+
3860	+	plus.completeExceptionally(first);
3861	+	}
3862	+	} catch (Throwable unexpected) {
3863	+	plus.completeExceptionally(unexpected);
3864	+	}
3865	+	};
3866	+	f.whenComplete(action);
3867	+	g.whenComplete(action);
3868	+	return plus;
3869	+	}
3870	+	}
3871	+
3872	+	/**
3873	+	* CompletableFuture is an additive monad - sort of.
3874	+	* https://en.wikipedia.org/wiki/Monad_(functional_programming)#Additive_monads
3875	+	*/
3876	+	public void testAdditiveMonad() throws Throwable {
3877	+	Function<Long, CompletableFuture<Long>> unit = Monad::unit;
3878	+	CompletableFuture<Long> zero = Monad.zero();
3879	+
3880	+	// Some mutually non-commutative functions
3881	+	Function<Long, CompletableFuture<Long>> triple
3882	+	= (x) -> Monad.unit(3 * x);
3883	+	Function<Long, CompletableFuture<Long>> inc
3884	+	= (x) -> Monad.unit(x + 1);
3885	+
3886	+	// unit is a right identity: m >>= unit === m
3887	+	Monad.assertFutureEquals(inc.apply(5L).thenCompose(unit),
3888	+	inc.apply(5L));
3889	+	// unit is a left identity: (unit x) >>= f === f x
3890	+	Monad.assertFutureEquals(unit.apply(5L).thenCompose(inc),
3891	+	inc.apply(5L));
3892	+
3893	+	// associativity: (m >>= f) >>= g === m >>= ( \x -> (f x >>= g) )
3894	+	Monad.assertFutureEquals(
3895	+	unit.apply(5L).thenCompose(inc).thenCompose(triple),
3896	+	unit.apply(5L).thenCompose((x) -> inc.apply(x).thenCompose(triple)));
3897	+
3898	+	// The case for CompletableFuture as an additive monad is weaker...
3899	+
3900	+	// zero is a monadic zero
3901	+	Monad.assertZero(zero);
3902	+
3903	+	// left zero: zero >>= f === zero
3904	+	Monad.assertZero(zero.thenCompose(inc));
3905	+	// right zero: f >>= (\x -> zero) === zero
3906	+	Monad.assertZero(inc.apply(5L).thenCompose((x) -> zero));
3907	+
3908	+	// f plus zero === f
3909	+	Monad.assertFutureEquals(Monad.unit(5L),
3910	+	Monad.plus(Monad.unit(5L), zero));
3911	+	// zero plus f === f
3912	+	Monad.assertFutureEquals(Monad.unit(5L),
3913	+	Monad.plus(zero, Monad.unit(5L)));
3914	+	// zero plus zero === zero
3915	+	Monad.assertZero(Monad.plus(zero, zero));
3916	+	{
3917	+	CompletableFuture<Long> f = Monad.plus(Monad.unit(5L),
3918	+	Monad.unit(8L));
3919	+	// non-determinism
3920	+	assertTrue(f.get() == 5L || f.get() == 8L);
3921	+	}
3922	+
3923	+	CompletableFuture<Long> godot = new CompletableFuture<>();
3924	+	// f plus godot === f (doesn't wait for godot)
3925	+	Monad.assertFutureEquals(Monad.unit(5L),
3926	+	Monad.plus(Monad.unit(5L), godot));
3927	+	// godot plus f === f (doesn't wait for godot)
3928	+	Monad.assertFutureEquals(Monad.unit(5L),
3929	+	Monad.plus(godot, Monad.unit(5L)));
3930	+	}
3931	+
3932	+	/**
3933	+	* A single CompletableFuture with many dependents.
3934	+	* A demo of scalability - runtime is O(n).
3935	+	*/
3936	+	public void testManyDependents() throws Throwable {
3937	+	final int n = 1_000;
3938	+	final CompletableFuture<Void> head = new CompletableFuture<>();
3939	+	final CompletableFuture<Void> complete = CompletableFuture.completedFuture((Void)null);
3940	+	final AtomicInteger count = new AtomicInteger(0);
3941	+	for (int i = 0; i < n; i++) {
3942	+	head.thenRun(() -> count.getAndIncrement());
3943	+	head.thenAccept((x) -> count.getAndIncrement());
3944	+	head.thenApply((x) -> count.getAndIncrement());
3945	+
3946	+	head.runAfterBoth(complete, () -> count.getAndIncrement());
3947	+	head.thenAcceptBoth(complete, (x, y) -> count.getAndIncrement());
3948	+	head.thenCombine(complete, (x, y) -> count.getAndIncrement());
3949	+	complete.runAfterBoth(head, () -> count.getAndIncrement());
3950	+	complete.thenAcceptBoth(head, (x, y) -> count.getAndIncrement());
3951	+	complete.thenCombine(head, (x, y) -> count.getAndIncrement());
3952	+
3953	+	head.runAfterEither(new CompletableFuture<Void>(), () -> count.getAndIncrement());
3954	+	head.acceptEither(new CompletableFuture<Void>(), (x) -> count.getAndIncrement());
3955	+	head.applyToEither(new CompletableFuture<Void>(), (x) -> count.getAndIncrement());
3956	+	new CompletableFuture<Void>().runAfterEither(head, () -> count.getAndIncrement());
3957	+	new CompletableFuture<Void>().acceptEither(head, (x) -> count.getAndIncrement());
3958	+	new CompletableFuture<Void>().applyToEither(head, (x) -> count.getAndIncrement());
3959	+	}
3960	+	head.complete(null);
3961	+	assertEquals(5 * 3 * n, count.get());
3962	+	}
3963	+
3964	+	//     static <U> U join(CompletionStage<U> stage) {
3965	+	//         CompletableFuture<U> f = new CompletableFuture<>();
3966	+	//         stage.whenComplete((v, ex) -> {
3967	+	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
3968	+	//         });
3969	+	//         return f.join();
3970	+	//     }
3971	+
3972	+	//     static <U> boolean isDone(CompletionStage<U> stage) {
3973	+	//         CompletableFuture<U> f = new CompletableFuture<>();
3974	+	//         stage.whenComplete((v, ex) -> {
3975	+	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
3976	+	//         });
3977	+	//         return f.isDone();
3978	+	//     }
3979	+
3980	+	//     static <U> U join2(CompletionStage<U> stage) {
3981	+	//         return stage.toCompletableFuture().copy().join();
3982	+	//     }
3983	+
3984	+	//     static <U> boolean isDone2(CompletionStage<U> stage) {
3985	+	//         return stage.toCompletableFuture().copy().isDone();
3986	+	//     }
3987	+
3988		}

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