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Comparing jsr166/src/test/tck/CompletableFutureTest.java (file contents):
Revision 1.68 by jsr166, Fri Jun 6 19:35:54 2014 UTC vs.
Revision 1.138 by jsr166, Sun Nov 15 23:31:51 2015 UTC

#	Line 5 | Line 5
5		* http://creativecommons.org/publicdomain/zero/1.0/
6		*/
7
8	<	import junit.framework.*;
8	>	import static java.util.concurrent.TimeUnit.MILLISECONDS;
9	>	import static java.util.concurrent.TimeUnit.SECONDS;
10	>	import static java.util.concurrent.CompletableFuture.completedFuture;
11	>	import static java.util.concurrent.CompletableFuture.failedFuture;
12	>
13	>	import java.lang.reflect.Method;
14	>	import java.lang.reflect.Modifier;
15	>
16	>	import java.util.stream.Collectors;
17	>	import java.util.stream.Stream;
18	>
19	>	import java.util.ArrayList;
20	>	import java.util.Arrays;
21	>	import java.util.List;
22	>	import java.util.Objects;
23	>	import java.util.Set;
24		import java.util.concurrent.Callable;
10	–	import java.util.concurrent.Executor;
11	–	import java.util.concurrent.ExecutorService;
12	–	import java.util.concurrent.Executors;
25		import java.util.concurrent.CancellationException;
14	–	import java.util.concurrent.CountDownLatch;
15	–	import java.util.concurrent.ExecutionException;
16	–	import java.util.concurrent.Future;
26		import java.util.concurrent.CompletableFuture;
27		import java.util.concurrent.CompletionException;
28		import java.util.concurrent.CompletionStage;
29	+	import java.util.concurrent.ExecutionException;
30	+	import java.util.concurrent.Executor;
31		import java.util.concurrent.ForkJoinPool;
32		import java.util.concurrent.ForkJoinTask;
33		import java.util.concurrent.TimeoutException;
34	+	import java.util.concurrent.TimeUnit;
35		import java.util.concurrent.atomic.AtomicInteger;
36	<	import static java.util.concurrent.TimeUnit.MILLISECONDS;
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	>	assertEquals(defaultExecutorIsCommonPool,
644	>	(ForkJoinPool.commonPool() == ForkJoinTask.getPool()));
645		}
646		public CompletableFuture<Void> runAsync(Runnable a) {
647		return CompletableFuture.runAsync(a);
#	Line 794 | Line 837 | public class CompletableFutureTest exten
837		{
838		final AtomicInteger a = new AtomicInteger(0);
839		final CompletableFuture<Integer> f = new CompletableFuture<>();
840	<	if (!createIncomplete) f.complete(v1);
840	>	if (!createIncomplete) assertTrue(f.complete(v1));
841		final CompletableFuture<Integer> g = f.exceptionally
842		((Throwable t) -> {
800	–	// Should not be called
843		a.getAndIncrement();
844	<	throw new AssertionError();
844	>	threadFail("should not be called");
845	>	return null;            // unreached
846		});
847	<	if (createIncomplete) f.complete(v1);
847	>	if (createIncomplete) assertTrue(f.complete(v1));
848
849		checkCompletedNormally(g, v1);
850		checkCompletedNormally(f, v1);
851		assertEquals(0, a.get());
852		}}
853
811	–
854		/**
855		* exceptionally action completes with function value on source
856		* exception
#	Line 823 | Line 865 | public class CompletableFutureTest exten
865		if (!createIncomplete) f.completeExceptionally(ex);
866		final CompletableFuture<Integer> g = f.exceptionally
867		((Throwable t) -> {
868	<	ExecutionMode.DEFAULT.checkExecutionMode();
868	>	ExecutionMode.SYNC.checkExecutionMode();
869		threadAssertSame(t, ex);
870		a.getAndIncrement();
871		return v1;
#	Line 834 | Line 876 | public class CompletableFutureTest exten
876		assertEquals(1, a.get());
877		}}
878
879	+	/**
880	+	* If an "exceptionally action" throws an exception, it completes
881	+	* exceptionally with that exception
882	+	*/
883		public void testExceptionally_exceptionalCompletionActionFailed() {
884		for (boolean createIncomplete : new boolean[] { true, false })
839	–	for (Integer v1 : new Integer[] { 1, null })
885		{
886		final AtomicInteger a = new AtomicInteger(0);
887		final CFException ex1 = new CFException();
#	Line 845 | Line 890 | public class CompletableFutureTest exten
890		if (!createIncomplete) f.completeExceptionally(ex1);
891		final CompletableFuture<Integer> g = f.exceptionally
892		((Throwable t) -> {
893	<	ExecutionMode.DEFAULT.checkExecutionMode();
893	>	ExecutionMode.SYNC.checkExecutionMode();
894		threadAssertSame(t, ex1);
895		a.getAndIncrement();
896		throw ex2;
897		});
898		if (createIncomplete) f.completeExceptionally(ex1);
899
900	<	checkCompletedWithWrappedCFException(g, ex2);
900	>	checkCompletedWithWrappedException(g, ex2);
901	>	checkCompletedExceptionally(f, ex1);
902	>	assertEquals(1, a.get());
903	>	}}
904	>
905	>	/**
906	>	* whenComplete action executes on normal completion, propagating
907	>	* source result.
908	>	*/
909	>	public void testWhenComplete_normalCompletion() {
910	>	for (ExecutionMode m : ExecutionMode.values())
911	>	for (boolean createIncomplete : new boolean[] { true, false })
912	>	for (Integer v1 : new Integer[] { 1, null })
913	>	{
914	>	final AtomicInteger a = new AtomicInteger(0);
915	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
916	>	if (!createIncomplete) assertTrue(f.complete(v1));
917	>	final CompletableFuture<Integer> g = m.whenComplete
918	>	(f,
919	>	(Integer result, Throwable t) -> {
920	>	m.checkExecutionMode();
921	>	threadAssertSame(result, v1);
922	>	threadAssertNull(t);
923	>	a.getAndIncrement();
924	>	});
925	>	if (createIncomplete) assertTrue(f.complete(v1));
926	>
927	>	checkCompletedNormally(g, v1);
928	>	checkCompletedNormally(f, v1);
929	>	assertEquals(1, a.get());
930	>	}}
931	>
932	>	/**
933	>	* whenComplete action executes on exceptional completion, propagating
934	>	* source result.
935	>	*/
936	>	public void testWhenComplete_exceptionalCompletion() {
937	>	for (ExecutionMode m : ExecutionMode.values())
938	>	for (boolean createIncomplete : new boolean[] { true, false })
939	>	{
940	>	final AtomicInteger a = new AtomicInteger(0);
941	>	final CFException ex = new CFException();
942	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
943	>	if (!createIncomplete) f.completeExceptionally(ex);
944	>	final CompletableFuture<Integer> g = m.whenComplete
945	>	(f,
946	>	(Integer result, Throwable t) -> {
947	>	m.checkExecutionMode();
948	>	threadAssertNull(result);
949	>	threadAssertSame(t, ex);
950	>	a.getAndIncrement();
951	>	});
952	>	if (createIncomplete) f.completeExceptionally(ex);
953	>
954	>	checkCompletedWithWrappedException(g, ex);
955	>	checkCompletedExceptionally(f, ex);
956	>	assertEquals(1, a.get());
957	>	}}
958	>
959	>	/**
960	>	* whenComplete action executes on cancelled source, propagating
961	>	* CancellationException.
962	>	*/
963	>	public void testWhenComplete_sourceCancelled() {
964	>	for (ExecutionMode m : ExecutionMode.values())
965	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
966	>	for (boolean createIncomplete : new boolean[] { true, false })
967	>	{
968	>	final AtomicInteger a = new AtomicInteger(0);
969	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
970	>	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
971	>	final CompletableFuture<Integer> g = m.whenComplete
972	>	(f,
973	>	(Integer result, Throwable t) -> {
974	>	m.checkExecutionMode();
975	>	threadAssertNull(result);
976	>	threadAssertTrue(t instanceof CancellationException);
977	>	a.getAndIncrement();
978	>	});
979	>	if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
980	>
981	>	checkCompletedWithWrappedCancellationException(g);
982	>	checkCancelled(f);
983	>	assertEquals(1, a.get());
984	>	}}
985	>
986	>	/**
987	>	* If a whenComplete action throws an exception when triggered by
988	>	* a normal completion, it completes exceptionally
989	>	*/
990	>	public void testWhenComplete_sourceCompletedNormallyActionFailed() {
991	>	for (boolean createIncomplete : new boolean[] { true, false })
992	>	for (ExecutionMode m : ExecutionMode.values())
993	>	for (Integer v1 : new Integer[] { 1, null })
994	>	{
995	>	final AtomicInteger a = new AtomicInteger(0);
996	>	final CFException ex = new CFException();
997	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
998	>	if (!createIncomplete) assertTrue(f.complete(v1));
999	>	final CompletableFuture<Integer> g = m.whenComplete
1000	>	(f,
1001	>	(Integer result, Throwable t) -> {
1002	>	m.checkExecutionMode();
1003	>	threadAssertSame(result, v1);
1004	>	threadAssertNull(t);
1005	>	a.getAndIncrement();
1006	>	throw ex;
1007	>	});
1008	>	if (createIncomplete) assertTrue(f.complete(v1));
1009	>
1010	>	checkCompletedWithWrappedException(g, ex);
1011	>	checkCompletedNormally(f, v1);
1012	>	assertEquals(1, a.get());
1013	>	}}
1014	>
1015	>	/**
1016	>	* If a whenComplete action throws an exception when triggered by
1017	>	* a source completion that also throws an exception, the source
1018	>	* exception takes precedence (unlike handle)
1019	>	*/
1020	>	public void testWhenComplete_sourceFailedActionFailed() {
1021	>	for (boolean createIncomplete : new boolean[] { true, false })
1022	>	for (ExecutionMode m : ExecutionMode.values())
1023	>	{
1024	>	final AtomicInteger a = new AtomicInteger(0);
1025	>	final CFException ex1 = new CFException();
1026	>	final CFException ex2 = new CFException();
1027	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1028	>
1029	>	if (!createIncomplete) f.completeExceptionally(ex1);
1030	>	final CompletableFuture<Integer> g = m.whenComplete
1031	>	(f,
1032	>	(Integer result, Throwable t) -> {
1033	>	m.checkExecutionMode();
1034	>	threadAssertSame(t, ex1);
1035	>	threadAssertNull(result);
1036	>	a.getAndIncrement();
1037	>	throw ex2;
1038	>	});
1039	>	if (createIncomplete) f.completeExceptionally(ex1);
1040	>
1041	>	checkCompletedWithWrappedException(g, ex1);
1042	>	checkCompletedExceptionally(f, ex1);
1043	>	assertEquals(1, ex1.getSuppressed().length);
1044	>	assertSame(ex2, ex1.getSuppressed()[0]);
1045		assertEquals(1, a.get());
1046		}}
1047
#	Line 867 | Line 1056 | public class CompletableFutureTest exten
1056		{
1057		final CompletableFuture<Integer> f = new CompletableFuture<>();
1058		final AtomicInteger a = new AtomicInteger(0);
1059	<	if (!createIncomplete) f.complete(v1);
1059	>	if (!createIncomplete) assertTrue(f.complete(v1));
1060		final CompletableFuture<Integer> g = m.handle
1061		(f,
1062	<	(Integer x, Throwable t) -> {
1062	>	(Integer result, Throwable t) -> {
1063		m.checkExecutionMode();
1064	<	threadAssertSame(x, v1);
1064	>	threadAssertSame(result, v1);
1065		threadAssertNull(t);
1066		a.getAndIncrement();
1067		return inc(v1);
1068		});
1069	<	if (createIncomplete) f.complete(v1);
1069	>	if (createIncomplete) assertTrue(f.complete(v1));
1070
1071		checkCompletedNormally(g, inc(v1));
1072		checkCompletedNormally(f, v1);
#	Line 899 | Line 1088 | public class CompletableFutureTest exten
1088		if (!createIncomplete) f.completeExceptionally(ex);
1089		final CompletableFuture<Integer> g = m.handle
1090		(f,
1091	<	(Integer x, Throwable t) -> {
1091	>	(Integer result, Throwable t) -> {
1092		m.checkExecutionMode();
1093	<	threadAssertNull(x);
1093	>	threadAssertNull(result);
1094		threadAssertSame(t, ex);
1095		a.getAndIncrement();
1096		return v1;
#	Line 909 | Line 1098 | public class CompletableFutureTest exten
1098		if (createIncomplete) f.completeExceptionally(ex);
1099
1100		checkCompletedNormally(g, v1);
1101	<	checkCompletedWithWrappedCFException(f, ex);
1101	>	checkCompletedExceptionally(f, ex);
1102		assertEquals(1, a.get());
1103		}}
1104
#	Line 928 | Line 1117 | public class CompletableFutureTest exten
1117		if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1118		final CompletableFuture<Integer> g = m.handle
1119		(f,
1120	<	(Integer x, Throwable t) -> {
1120	>	(Integer result, Throwable t) -> {
1121		m.checkExecutionMode();
1122	<	threadAssertNull(x);
1122	>	threadAssertNull(result);
1123		threadAssertTrue(t instanceof CancellationException);
1124		a.getAndIncrement();
1125		return v1;
#	Line 943 | Line 1132 | public class CompletableFutureTest exten
1132		}}
1133
1134		/**
1135	<	* handle result completes exceptionally if action does
1135	>	* If a "handle action" throws an exception when triggered by
1136	>	* a normal completion, it completes exceptionally
1137		*/
1138	<	public void testHandle_sourceFailedActionFailed() {
1138	>	public void testHandle_sourceCompletedNormallyActionFailed() {
1139		for (ExecutionMode m : ExecutionMode.values())
1140		for (boolean createIncomplete : new boolean[] { true, false })
1141	+	for (Integer v1 : new Integer[] { 1, null })
1142		{
1143		final CompletableFuture<Integer> f = new CompletableFuture<>();
1144		final AtomicInteger a = new AtomicInteger(0);
1145	<	final CFException ex1 = new CFException();
1146	<	final CFException ex2 = new CFException();
956	<	if (!createIncomplete) f.completeExceptionally(ex1);
1145	>	final CFException ex = new CFException();
1146	>	if (!createIncomplete) assertTrue(f.complete(v1));
1147		final CompletableFuture<Integer> g = m.handle
1148		(f,
1149	<	(Integer x, Throwable t) -> {
1149	>	(Integer result, Throwable t) -> {
1150		m.checkExecutionMode();
1151	<	threadAssertNull(x);
1152	<	threadAssertSame(ex1, t);
1151	>	threadAssertSame(result, v1);
1152	>	threadAssertNull(t);
1153		a.getAndIncrement();
1154	<	throw ex2;
1154	>	throw ex;
1155		});
1156	<	if (createIncomplete) f.completeExceptionally(ex1);
1156	>	if (createIncomplete) assertTrue(f.complete(v1));
1157
1158	<	checkCompletedWithWrappedCFException(g, ex2);
1159	<	checkCompletedWithWrappedCFException(f, ex1);
1158	>	checkCompletedWithWrappedException(g, ex);
1159	>	checkCompletedNormally(f, v1);
1160		assertEquals(1, a.get());
1161		}}
1162
1163	<	public void testHandle_sourceCompletedNormallyActionFailed() {
1164	<	for (ExecutionMode m : ExecutionMode.values())
1163	>	/**
1164	>	* If a "handle action" throws an exception when triggered by
1165	>	* a source completion that also throws an exception, the action
1166	>	* exception takes precedence (unlike whenComplete)
1167	>	*/
1168	>	public void testHandle_sourceFailedActionFailed() {
1169		for (boolean createIncomplete : new boolean[] { true, false })
1170	<	for (Integer v1 : new Integer[] { 1, null })
1170	>	for (ExecutionMode m : ExecutionMode.values())
1171		{
978	–	final CompletableFuture<Integer> f = new CompletableFuture<>();
1172		final AtomicInteger a = new AtomicInteger(0);
1173	<	final CFException ex = new CFException();
1174	<	if (!createIncomplete) f.complete(v1);
1173	>	final CFException ex1 = new CFException();
1174	>	final CFException ex2 = new CFException();
1175	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1176	>
1177	>	if (!createIncomplete) f.completeExceptionally(ex1);
1178		final CompletableFuture<Integer> g = m.handle
1179		(f,
1180	<	(Integer x, Throwable t) -> {
1180	>	(Integer result, Throwable t) -> {
1181		m.checkExecutionMode();
1182	<	threadAssertSame(x, v1);
1183	<	threadAssertNull(t);
1182	>	threadAssertNull(result);
1183	>	threadAssertSame(ex1, t);
1184		a.getAndIncrement();
1185	<	throw ex;
1185	>	throw ex2;
1186		});
1187	<	if (createIncomplete) f.complete(v1);
1187	>	if (createIncomplete) f.completeExceptionally(ex1);
1188
1189	<	checkCompletedWithWrappedCFException(g, ex);
1190	<	checkCompletedNormally(f, v1);
1189	>	checkCompletedWithWrappedException(g, ex2);
1190	>	checkCompletedExceptionally(f, ex1);
1191		assertEquals(1, a.get());
1192		}}
1193
#	Line 1069 | Line 1265 | public class CompletableFutureTest exten
1265		*/
1266		public void testThenRun_normalCompletion() {
1267		for (ExecutionMode m : ExecutionMode.values())
1072	–	for (boolean createIncomplete : new boolean[] { true, false })
1268		for (Integer v1 : new Integer[] { 1, null })
1269		{
1270		final CompletableFuture<Integer> f = new CompletableFuture<>();
1271	<	final Noop r = new Noop(m);
1272	<	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	<	}
1271	>	final Noop[] rs = new Noop[6];
1272	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1273
1274	<	checkCompletedNormally(g, null);
1274	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1275	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1276	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1277	>	checkIncomplete(h0);
1278	>	checkIncomplete(h1);
1279	>	checkIncomplete(h2);
1280	>	assertTrue(f.complete(v1));
1281	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1282	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1283	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1284	>
1285	>	checkCompletedNormally(h0, null);
1286	>	checkCompletedNormally(h1, null);
1287	>	checkCompletedNormally(h2, null);
1288	>	checkCompletedNormally(h3, null);
1289	>	checkCompletedNormally(h4, null);
1290	>	checkCompletedNormally(h5, null);
1291		checkCompletedNormally(f, v1);
1292	<	r.assertInvoked();
1292	>	for (Noop r : rs) r.assertInvoked();
1293		}}
1294
1295		/**
#	Line 1092 | Line 1298 | public class CompletableFutureTest exten
1298		*/
1299		public void testThenRun_exceptionalCompletion() {
1300		for (ExecutionMode m : ExecutionMode.values())
1095	–	for (boolean createIncomplete : new boolean[] { true, false })
1301		{
1302		final CFException ex = new CFException();
1303		final CompletableFuture<Integer> f = new CompletableFuture<>();
1304	<	final Noop r = new Noop(m);
1305	<	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	<	}
1304	>	final Noop[] rs = new Noop[6];
1305	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1306
1307	<	checkCompletedWithWrappedCFException(g, ex);
1308	<	checkCompletedWithWrappedCFException(f, ex);
1309	<	r.assertNotInvoked();
1307	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1308	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1309	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1310	>	checkIncomplete(h0);
1311	>	checkIncomplete(h1);
1312	>	checkIncomplete(h2);
1313	>	assertTrue(f.completeExceptionally(ex));
1314	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1315	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1316	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1317	>
1318	>	checkCompletedWithWrappedException(h0, ex);
1319	>	checkCompletedWithWrappedException(h1, ex);
1320	>	checkCompletedWithWrappedException(h2, ex);
1321	>	checkCompletedWithWrappedException(h3, ex);
1322	>	checkCompletedWithWrappedException(h4, ex);
1323	>	checkCompletedWithWrappedException(h5, ex);
1324	>	checkCompletedExceptionally(f, ex);
1325	>	for (Noop r : rs) r.assertNotInvoked();
1326		}}
1327
1328		/**
#	Line 1114 | Line 1330 | public class CompletableFutureTest exten
1330		*/
1331		public void testThenRun_sourceCancelled() {
1332		for (ExecutionMode m : ExecutionMode.values())
1117	–	for (boolean createIncomplete : new boolean[] { true, false })
1333		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1334		{
1335		final CompletableFuture<Integer> f = new CompletableFuture<>();
1336	<	final Noop r = new Noop(m);
1337	<	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	<	}
1336	>	final Noop[] rs = new Noop[6];
1337	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1338
1339	<	checkCompletedWithWrappedCancellationException(g);
1339	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1340	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1341	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1342	>	checkIncomplete(h0);
1343	>	checkIncomplete(h1);
1344	>	checkIncomplete(h2);
1345	>	assertTrue(f.cancel(mayInterruptIfRunning));
1346	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1347	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1348	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1349	>
1350	>	checkCompletedWithWrappedCancellationException(h0);
1351	>	checkCompletedWithWrappedCancellationException(h1);
1352	>	checkCompletedWithWrappedCancellationException(h2);
1353	>	checkCompletedWithWrappedCancellationException(h3);
1354	>	checkCompletedWithWrappedCancellationException(h4);
1355	>	checkCompletedWithWrappedCancellationException(h5);
1356		checkCancelled(f);
1357	<	r.assertNotInvoked();
1357	>	for (Noop r : rs) r.assertNotInvoked();
1358		}}
1359
1360		/**
#	Line 1136 | Line 1362 | public class CompletableFutureTest exten
1362		*/
1363		public void testThenRun_actionFailed() {
1364		for (ExecutionMode m : ExecutionMode.values())
1139	–	for (boolean createIncomplete : new boolean[] { true, false })
1365		for (Integer v1 : new Integer[] { 1, null })
1366		{
1367		final CompletableFuture<Integer> f = new CompletableFuture<>();
1368	<	final FailingRunnable r = new FailingRunnable(m);
1369	<	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	<	}
1368	>	final FailingRunnable[] rs = new FailingRunnable[6];
1369	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingRunnable(m);
1370
1371	<	checkCompletedWithWrappedCFException(g);
1371	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1372	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1373	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1374	>	assertTrue(f.complete(v1));
1375	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1376	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1377	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1378	>
1379	>	checkCompletedWithWrappedCFException(h0);
1380	>	checkCompletedWithWrappedCFException(h1);
1381	>	checkCompletedWithWrappedCFException(h2);
1382	>	checkCompletedWithWrappedCFException(h3);
1383	>	checkCompletedWithWrappedCFException(h4);
1384	>	checkCompletedWithWrappedCFException(h5);
1385		checkCompletedNormally(f, v1);
1386		}}
1387
#	Line 1157 | Line 1390 | public class CompletableFutureTest exten
1390		*/
1391		public void testThenApply_normalCompletion() {
1392		for (ExecutionMode m : ExecutionMode.values())
1160	–	for (boolean createIncomplete : new boolean[] { true, false })
1393		for (Integer v1 : new Integer[] { 1, null })
1394		{
1395		final CompletableFuture<Integer> f = new CompletableFuture<>();
1396	<	final IncFunction r = new IncFunction(m);
1397	<	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	<	}
1396	>	final IncFunction[] rs = new IncFunction[4];
1397	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1398
1399	<	checkCompletedNormally(g, inc(v1));
1399	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1400	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1401	>	checkIncomplete(h0);
1402	>	checkIncomplete(h1);
1403	>	assertTrue(f.complete(v1));
1404	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1405	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1406	>
1407	>	checkCompletedNormally(h0, inc(v1));
1408	>	checkCompletedNormally(h1, inc(v1));
1409	>	checkCompletedNormally(h2, inc(v1));
1410	>	checkCompletedNormally(h3, inc(v1));
1411		checkCompletedNormally(f, v1);
1412	<	r.assertInvoked();
1412	>	for (IncFunction r : rs) r.assertValue(inc(v1));
1413		}}
1414
1415		/**
#	Line 1180 | Line 1418 | public class CompletableFutureTest exten
1418		*/
1419		public void testThenApply_exceptionalCompletion() {
1420		for (ExecutionMode m : ExecutionMode.values())
1183	–	for (boolean createIncomplete : new boolean[] { true, false })
1421		{
1422		final CFException ex = new CFException();
1423		final CompletableFuture<Integer> f = new CompletableFuture<>();
1424	<	final IncFunction r = new IncFunction(m);
1425	<	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	<	}
1424	>	final IncFunction[] rs = new IncFunction[4];
1425	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1426
1427	<	checkCompletedWithWrappedCFException(g, ex);
1428	<	checkCompletedWithWrappedCFException(f, ex);
1429	<	r.assertNotInvoked();
1427	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1428	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1429	>	assertTrue(f.completeExceptionally(ex));
1430	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1431	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1432	>
1433	>	checkCompletedWithWrappedException(h0, ex);
1434	>	checkCompletedWithWrappedException(h1, ex);
1435	>	checkCompletedWithWrappedException(h2, ex);
1436	>	checkCompletedWithWrappedException(h3, ex);
1437	>	checkCompletedExceptionally(f, ex);
1438	>	for (IncFunction r : rs) r.assertNotInvoked();
1439		}}
1440
1441		/**
#	Line 1202 | Line 1443 | public class CompletableFutureTest exten
1443		*/
1444		public void testThenApply_sourceCancelled() {
1445		for (ExecutionMode m : ExecutionMode.values())
1205	–	for (boolean createIncomplete : new boolean[] { true, false })
1446		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1447		{
1448		final CompletableFuture<Integer> f = new CompletableFuture<>();
1449	<	final IncFunction r = new IncFunction(m);
1450	<	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	<	}
1449	>	final IncFunction[] rs = new IncFunction[4];
1450	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1451
1452	<	checkCompletedWithWrappedCancellationException(g);
1452	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1453	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1454	>	assertTrue(f.cancel(mayInterruptIfRunning));
1455	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1456	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1457	>
1458	>	checkCompletedWithWrappedCancellationException(h0);
1459	>	checkCompletedWithWrappedCancellationException(h1);
1460	>	checkCompletedWithWrappedCancellationException(h2);
1461	>	checkCompletedWithWrappedCancellationException(h3);
1462		checkCancelled(f);
1463	<	r.assertNotInvoked();
1463	>	for (IncFunction r : rs) r.assertNotInvoked();
1464		}}
1465
1466		/**
#	Line 1224 | Line 1468 | public class CompletableFutureTest exten
1468		*/
1469		public void testThenApply_actionFailed() {
1470		for (ExecutionMode m : ExecutionMode.values())
1227	–	for (boolean createIncomplete : new boolean[] { true, false })
1471		for (Integer v1 : new Integer[] { 1, null })
1472		{
1473		final CompletableFuture<Integer> f = new CompletableFuture<>();
1474	<	final FailingFunction r = new FailingFunction(m);
1475	<	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	<	}
1474	>	final FailingFunction[] rs = new FailingFunction[4];
1475	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingFunction(m);
1476
1477	<	checkCompletedWithWrappedCFException(g);
1477	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1478	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1479	>	assertTrue(f.complete(v1));
1480	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1481	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1482	>
1483	>	checkCompletedWithWrappedCFException(h0);
1484	>	checkCompletedWithWrappedCFException(h1);
1485	>	checkCompletedWithWrappedCFException(h2);
1486	>	checkCompletedWithWrappedCFException(h3);
1487		checkCompletedNormally(f, v1);
1488		}}
1489
#	Line 1245 | Line 1492 | public class CompletableFutureTest exten
1492		*/
1493		public void testThenAccept_normalCompletion() {
1494		for (ExecutionMode m : ExecutionMode.values())
1248	–	for (boolean createIncomplete : new boolean[] { true, false })
1495		for (Integer v1 : new Integer[] { 1, null })
1496		{
1497		final CompletableFuture<Integer> f = new CompletableFuture<>();
1498	<	final NoopConsumer r = new NoopConsumer(m);
1499	<	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	<	}
1498	>	final NoopConsumer[] rs = new NoopConsumer[4];
1499	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1500
1501	<	checkCompletedNormally(g, null);
1502	<	r.assertValue(v1);
1501	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1502	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1503	>	checkIncomplete(h0);
1504	>	checkIncomplete(h1);
1505	>	assertTrue(f.complete(v1));
1506	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1507	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1508	>
1509	>	checkCompletedNormally(h0, null);
1510	>	checkCompletedNormally(h1, null);
1511	>	checkCompletedNormally(h2, null);
1512	>	checkCompletedNormally(h3, null);
1513		checkCompletedNormally(f, v1);
1514	+	for (NoopConsumer r : rs) r.assertValue(v1);
1515		}}
1516
1517		/**
#	Line 1268 | Line 1520 | public class CompletableFutureTest exten
1520		*/
1521		public void testThenAccept_exceptionalCompletion() {
1522		for (ExecutionMode m : ExecutionMode.values())
1271	–	for (boolean createIncomplete : new boolean[] { true, false })
1523		{
1524		final CFException ex = new CFException();
1525		final CompletableFuture<Integer> f = new CompletableFuture<>();
1526	<	final NoopConsumer r = new NoopConsumer(m);
1527	<	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	<	}
1526	>	final NoopConsumer[] rs = new NoopConsumer[4];
1527	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1528
1529	<	checkCompletedWithWrappedCFException(g, ex);
1530	<	checkCompletedWithWrappedCFException(f, ex);
1531	<	r.assertNotInvoked();
1529	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1530	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1531	>	assertTrue(f.completeExceptionally(ex));
1532	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1533	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1534	>
1535	>	checkCompletedWithWrappedException(h0, ex);
1536	>	checkCompletedWithWrappedException(h1, ex);
1537	>	checkCompletedWithWrappedException(h2, ex);
1538	>	checkCompletedWithWrappedException(h3, ex);
1539	>	checkCompletedExceptionally(f, ex);
1540	>	for (NoopConsumer r : rs) r.assertNotInvoked();
1541		}}
1542
1543		/**
#	Line 1290 | Line 1545 | public class CompletableFutureTest exten
1545		*/
1546		public void testThenAccept_sourceCancelled() {
1547		for (ExecutionMode m : ExecutionMode.values())
1293	–	for (boolean createIncomplete : new boolean[] { true, false })
1548		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1549		{
1550		final CompletableFuture<Integer> f = new CompletableFuture<>();
1551	<	final NoopConsumer r = new NoopConsumer(m);
1552	<	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	<	}
1551	>	final NoopConsumer[] rs = new NoopConsumer[4];
1552	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1553
1554	<	checkCompletedWithWrappedCancellationException(g);
1554	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1555	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1556	>	assertTrue(f.cancel(mayInterruptIfRunning));
1557	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1558	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1559	>
1560	>	checkCompletedWithWrappedCancellationException(h0);
1561	>	checkCompletedWithWrappedCancellationException(h1);
1562	>	checkCompletedWithWrappedCancellationException(h2);
1563	>	checkCompletedWithWrappedCancellationException(h3);
1564		checkCancelled(f);
1565	<	r.assertNotInvoked();
1565	>	for (NoopConsumer r : rs) r.assertNotInvoked();
1566		}}
1567
1568		/**
#	Line 1312 | Line 1570 | public class CompletableFutureTest exten
1570		*/
1571		public void testThenAccept_actionFailed() {
1572		for (ExecutionMode m : ExecutionMode.values())
1315	–	for (boolean createIncomplete : new boolean[] { true, false })
1573		for (Integer v1 : new Integer[] { 1, null })
1574		{
1575		final CompletableFuture<Integer> f = new CompletableFuture<>();
1576	<	final FailingConsumer r = new FailingConsumer(m);
1577	<	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	<	}
1576	>	final FailingConsumer[] rs = new FailingConsumer[4];
1577	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingConsumer(m);
1578
1579	<	checkCompletedWithWrappedCFException(g);
1579	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1580	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1581	>	assertTrue(f.complete(v1));
1582	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1583	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1584	>
1585	>	checkCompletedWithWrappedCFException(h0);
1586	>	checkCompletedWithWrappedCFException(h1);
1587	>	checkCompletedWithWrappedCFException(h2);
1588	>	checkCompletedWithWrappedCFException(h3);
1589		checkCompletedNormally(f, v1);
1590		}}
1591
#	Line 1334 | Line 1595 | public class CompletableFutureTest exten
1595		*/
1596		public void testThenCombine_normalCompletion() {
1597		for (ExecutionMode m : ExecutionMode.values())
1337	–	for (boolean createIncomplete : new boolean[] { true, false })
1598		for (boolean fFirst : new boolean[] { true, false })
1599		for (Integer v1 : new Integer[] { 1, null })
1600		for (Integer v2 : new Integer[] { 2, null })
1601		{
1602		final CompletableFuture<Integer> f = new CompletableFuture<>();
1603		final CompletableFuture<Integer> g = new CompletableFuture<>();
1604	<	final SubtractFunction r = new SubtractFunction(m);
1604	>	final SubtractFunction[] rs = new SubtractFunction[6];
1605	>	for (int i = 0; i < rs.length; i++) rs[i] = new SubtractFunction(m);
1606
1607	<	if (fFirst) f.complete(v1); else g.complete(v2);
1608	<	if (!createIncomplete)
1609	<	if (!fFirst) f.complete(v1); else g.complete(v2);
1610	<	final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1611	<	if (createIncomplete) {
1612	<	checkIncomplete(h);
1613	<	r.assertNotInvoked();
1614	<	if (!fFirst) f.complete(v1); else g.complete(v2);
1615	<	}
1607	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1608	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1609	>	final Integer w1 =  fFirst ? v1 : v2;
1610	>	final Integer w2 = !fFirst ? v1 : v2;
1611	>
1612	>	final CompletableFuture<Integer> h0 = m.thenCombine(f, g, rs[0]);
1613	>	final CompletableFuture<Integer> h1 = m.thenCombine(fst, fst, rs[1]);
1614	>	assertTrue(fst.complete(w1));
1615	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, rs[2]);
1616	>	final CompletableFuture<Integer> h3 = m.thenCombine(fst, fst, rs[3]);
1617	>	checkIncomplete(h0); rs[0].assertNotInvoked();
1618	>	checkIncomplete(h2); rs[2].assertNotInvoked();
1619	>	checkCompletedNormally(h1, subtract(w1, w1));
1620	>	checkCompletedNormally(h3, subtract(w1, w1));
1621	>	rs[1].assertValue(subtract(w1, w1));
1622	>	rs[3].assertValue(subtract(w1, w1));
1623	>	assertTrue(snd.complete(w2));
1624	>	final CompletableFuture<Integer> h4 = m.thenCombine(f, g, rs[4]);
1625	>
1626	>	checkCompletedNormally(h0, subtract(v1, v2));
1627	>	checkCompletedNormally(h2, subtract(v1, v2));
1628	>	checkCompletedNormally(h4, subtract(v1, v2));
1629	>	rs[0].assertValue(subtract(v1, v2));
1630	>	rs[2].assertValue(subtract(v1, v2));
1631	>	rs[4].assertValue(subtract(v1, v2));
1632
1356	–	checkCompletedNormally(h, subtract(v1, v2));
1633		checkCompletedNormally(f, v1);
1634		checkCompletedNormally(g, v2);
1359	–	r.assertInvoked();
1635		}}
1636
1637		/**
1638		* thenCombine result completes exceptionally after exceptional
1639		* completion of either source
1640		*/
1641	<	public void testThenCombine_exceptionalCompletion() {
1641	>	public void testThenCombine_exceptionalCompletion() throws Throwable {
1642		for (ExecutionMode m : ExecutionMode.values())
1368	–	for (boolean createIncomplete : new boolean[] { true, false })
1643		for (boolean fFirst : new boolean[] { true, false })
1644	+	for (boolean failFirst : new boolean[] { true, false })
1645		for (Integer v1 : new Integer[] { 1, null })
1646		{
1647		final CompletableFuture<Integer> f = new CompletableFuture<>();
1648		final CompletableFuture<Integer> g = new CompletableFuture<>();
1649		final CFException ex = new CFException();
1650	<	final SubtractFunction r = new SubtractFunction(m);
1651	<
1652	<	(fFirst ? f : g).complete(v1);
1653	<	if (!createIncomplete)
1654	<	(!fFirst ? f : g).completeExceptionally(ex);
1655	<	final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1656	<	if (createIncomplete) {
1657	<	checkIncomplete(h);
1658	<	(!fFirst ? f : g).completeExceptionally(ex);
1659	<	}
1660	<
1661	<	checkCompletedWithWrappedCFException(h, ex);
1662	<	r.assertNotInvoked();
1663	<	checkCompletedNormally(fFirst ? f : g, v1);
1664	<	checkCompletedWithWrappedCFException(!fFirst ? f : g, ex);
1650	>	final SubtractFunction r1 = new SubtractFunction(m);
1651	>	final SubtractFunction r2 = new SubtractFunction(m);
1652	>	final SubtractFunction r3 = new SubtractFunction(m);
1653	>
1654	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1655	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1656	>	final Callable<Boolean> complete1 = failFirst ?
1657	>	() -> fst.completeExceptionally(ex) :
1658	>	() -> fst.complete(v1);
1659	>	final Callable<Boolean> complete2 = failFirst ?
1660	>	() -> snd.complete(v1) :
1661	>	() -> snd.completeExceptionally(ex);
1662	>
1663	>	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1664	>	assertTrue(complete1.call());
1665	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1666	>	checkIncomplete(h1);
1667	>	checkIncomplete(h2);
1668	>	assertTrue(complete2.call());
1669	>	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1670	>
1671	>	checkCompletedWithWrappedException(h1, ex);
1672	>	checkCompletedWithWrappedException(h2, ex);
1673	>	checkCompletedWithWrappedException(h3, ex);
1674	>	r1.assertNotInvoked();
1675	>	r2.assertNotInvoked();
1676	>	r3.assertNotInvoked();
1677	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1678	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
1679		}}
1680
1681		/**
1682		* thenCombine result completes exceptionally if either source cancelled
1683		*/
1684	<	public void testThenCombine_sourceCancelled() {
1684	>	public void testThenCombine_sourceCancelled() throws Throwable {
1685		for (ExecutionMode m : ExecutionMode.values())
1686		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1398	–	for (boolean createIncomplete : new boolean[] { true, false })
1687		for (boolean fFirst : new boolean[] { true, false })
1688	+	for (boolean failFirst : new boolean[] { true, false })
1689		for (Integer v1 : new Integer[] { 1, null })
1690		{
1691		final CompletableFuture<Integer> f = new CompletableFuture<>();
1692		final CompletableFuture<Integer> g = new CompletableFuture<>();
1693	<	final SubtractFunction r = new SubtractFunction(m);
1693	>	final SubtractFunction r1 = new SubtractFunction(m);
1694	>	final SubtractFunction r2 = new SubtractFunction(m);
1695	>	final SubtractFunction r3 = new SubtractFunction(m);
1696
1697	<	(fFirst ? f : g).complete(v1);
1698	<	if (!createIncomplete)
1699	<	assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
1700	<	final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1701	<	if (createIncomplete) {
1702	<	checkIncomplete(h);
1703	<	assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
1704	<	}
1697	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1698	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1699	>	final Callable<Boolean> complete1 = failFirst ?
1700	>	() -> fst.cancel(mayInterruptIfRunning) :
1701	>	() -> fst.complete(v1);
1702	>	final Callable<Boolean> complete2 = failFirst ?
1703	>	() -> snd.complete(v1) :
1704	>	() -> snd.cancel(mayInterruptIfRunning);
1705
1706	<	checkCompletedWithWrappedCancellationException(h);
1707	<	checkCancelled(!fFirst ? f : g);
1708	<	r.assertNotInvoked();
1709	<	checkCompletedNormally(fFirst ? f : g, v1);
1706	>	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1707	>	assertTrue(complete1.call());
1708	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1709	>	checkIncomplete(h1);
1710	>	checkIncomplete(h2);
1711	>	assertTrue(complete2.call());
1712	>	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1713	>
1714	>	checkCompletedWithWrappedCancellationException(h1);
1715	>	checkCompletedWithWrappedCancellationException(h2);
1716	>	checkCompletedWithWrappedCancellationException(h3);
1717	>	r1.assertNotInvoked();
1718	>	r2.assertNotInvoked();
1719	>	r3.assertNotInvoked();
1720	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1721	>	checkCancelled(failFirst ? fst : snd);
1722		}}
1723
1724		/**
#	Line 1429 | Line 1732 | public class CompletableFutureTest exten
1732		{
1733		final CompletableFuture<Integer> f = new CompletableFuture<>();
1734		final CompletableFuture<Integer> g = new CompletableFuture<>();
1735	<	final FailingBiFunction r = new FailingBiFunction(m);
1736	<	final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1737	<
1738	<	if (fFirst) {
1739	<	f.complete(v1);
1740	<	g.complete(v2);
1741	<	} else {
1742	<	g.complete(v2);
1743	<	f.complete(v1);
1744	<	}
1735	>	final FailingBiFunction r1 = new FailingBiFunction(m);
1736	>	final FailingBiFunction r2 = new FailingBiFunction(m);
1737	>	final FailingBiFunction r3 = new FailingBiFunction(m);
1738	>
1739	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1740	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1741	>	final Integer w1 =  fFirst ? v1 : v2;
1742	>	final Integer w2 = !fFirst ? v1 : v2;
1743	>
1744	>	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1745	>	assertTrue(fst.complete(w1));
1746	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1747	>	assertTrue(snd.complete(w2));
1748	>	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1749
1750	<	checkCompletedWithWrappedCFException(h);
1750	>	checkCompletedWithWrappedCFException(h1);
1751	>	checkCompletedWithWrappedCFException(h2);
1752	>	checkCompletedWithWrappedCFException(h3);
1753	>	r1.assertInvoked();
1754	>	r2.assertInvoked();
1755	>	r3.assertInvoked();
1756		checkCompletedNormally(f, v1);
1757		checkCompletedNormally(g, v2);
1758		}}
#	Line 1451 | Line 1763 | public class CompletableFutureTest exten
1763		*/
1764		public void testThenAcceptBoth_normalCompletion() {
1765		for (ExecutionMode m : ExecutionMode.values())
1454	–	for (boolean createIncomplete : new boolean[] { true, false })
1766		for (boolean fFirst : new boolean[] { true, false })
1767		for (Integer v1 : new Integer[] { 1, null })
1768		for (Integer v2 : new Integer[] { 2, null })
1769		{
1770		final CompletableFuture<Integer> f = new CompletableFuture<>();
1771		final CompletableFuture<Integer> g = new CompletableFuture<>();
1772	<	final SubtractAction r = new SubtractAction(m);
1773	<
1774	<	if (fFirst) f.complete(v1); else g.complete(v2);
1775	<	if (!createIncomplete)
1776	<	if (!fFirst) f.complete(v1); else g.complete(v2);
1777	<	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1778	<	if (createIncomplete) {
1779	<	checkIncomplete(h);
1780	<	r.assertNotInvoked();
1781	<	if (!fFirst) f.complete(v1); else g.complete(v2);
1782	<	}
1772	>	final SubtractAction r1 = new SubtractAction(m);
1773	>	final SubtractAction r2 = new SubtractAction(m);
1774	>	final SubtractAction r3 = new SubtractAction(m);
1775	>
1776	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1777	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1778	>	final Integer w1 =  fFirst ? v1 : v2;
1779	>	final Integer w2 = !fFirst ? v1 : v2;
1780	>
1781	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1782	>	assertTrue(fst.complete(w1));
1783	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1784	>	checkIncomplete(h1);
1785	>	checkIncomplete(h2);
1786	>	r1.assertNotInvoked();
1787	>	r2.assertNotInvoked();
1788	>	assertTrue(snd.complete(w2));
1789	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1790
1791	<	checkCompletedNormally(h, null);
1792	<	r.assertValue(subtract(v1, v2));
1791	>	checkCompletedNormally(h1, null);
1792	>	checkCompletedNormally(h2, null);
1793	>	checkCompletedNormally(h3, null);
1794	>	r1.assertValue(subtract(v1, v2));
1795	>	r2.assertValue(subtract(v1, v2));
1796	>	r3.assertValue(subtract(v1, v2));
1797		checkCompletedNormally(f, v1);
1798		checkCompletedNormally(g, v2);
1799		}}
#	Line 1480 | Line 1802 | public class CompletableFutureTest exten
1802		* thenAcceptBoth result completes exceptionally after exceptional
1803		* completion of either source
1804		*/
1805	<	public void testThenAcceptBoth_exceptionalCompletion() {
1805	>	public void testThenAcceptBoth_exceptionalCompletion() throws Throwable {
1806		for (ExecutionMode m : ExecutionMode.values())
1485	–	for (boolean createIncomplete : new boolean[] { true, false })
1807		for (boolean fFirst : new boolean[] { true, false })
1808	+	for (boolean failFirst : new boolean[] { true, false })
1809		for (Integer v1 : new Integer[] { 1, null })
1810		{
1811		final CompletableFuture<Integer> f = new CompletableFuture<>();
1812		final CompletableFuture<Integer> g = new CompletableFuture<>();
1813		final CFException ex = new CFException();
1814	<	final SubtractAction r = new SubtractAction(m);
1815	<
1816	<	(fFirst ? f : g).complete(v1);
1817	<	if (!createIncomplete)
1818	<	(!fFirst ? f : g).completeExceptionally(ex);
1819	<	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1820	<	if (createIncomplete) {
1821	<	checkIncomplete(h);
1822	<	(!fFirst ? f : g).completeExceptionally(ex);
1823	<	}
1824	<
1825	<	checkCompletedWithWrappedCFException(h, ex);
1826	<	r.assertNotInvoked();
1827	<	checkCompletedNormally(fFirst ? f : g, v1);
1828	<	checkCompletedWithWrappedCFException(!fFirst ? f : g, ex);
1814	>	final SubtractAction r1 = new SubtractAction(m);
1815	>	final SubtractAction r2 = new SubtractAction(m);
1816	>	final SubtractAction r3 = new SubtractAction(m);
1817	>
1818	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1819	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1820	>	final Callable<Boolean> complete1 = failFirst ?
1821	>	() -> fst.completeExceptionally(ex) :
1822	>	() -> fst.complete(v1);
1823	>	final Callable<Boolean> complete2 = failFirst ?
1824	>	() -> snd.complete(v1) :
1825	>	() -> snd.completeExceptionally(ex);
1826	>
1827	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1828	>	assertTrue(complete1.call());
1829	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1830	>	checkIncomplete(h1);
1831	>	checkIncomplete(h2);
1832	>	assertTrue(complete2.call());
1833	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1834	>
1835	>	checkCompletedWithWrappedException(h1, ex);
1836	>	checkCompletedWithWrappedException(h2, ex);
1837	>	checkCompletedWithWrappedException(h3, ex);
1838	>	r1.assertNotInvoked();
1839	>	r2.assertNotInvoked();
1840	>	r3.assertNotInvoked();
1841	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1842	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
1843		}}
1844
1845		/**
1846		* thenAcceptBoth result completes exceptionally if either source cancelled
1847		*/
1848	<	public void testThenAcceptBoth_sourceCancelled() {
1848	>	public void testThenAcceptBoth_sourceCancelled() throws Throwable {
1849		for (ExecutionMode m : ExecutionMode.values())
1850		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1515	–	for (boolean createIncomplete : new boolean[] { true, false })
1851		for (boolean fFirst : new boolean[] { true, false })
1852	+	for (boolean failFirst : new boolean[] { true, false })
1853		for (Integer v1 : new Integer[] { 1, null })
1854		{
1855		final CompletableFuture<Integer> f = new CompletableFuture<>();
1856		final CompletableFuture<Integer> g = new CompletableFuture<>();
1857	<	final SubtractAction r = new SubtractAction(m);
1857	>	final SubtractAction r1 = new SubtractAction(m);
1858	>	final SubtractAction r2 = new SubtractAction(m);
1859	>	final SubtractAction r3 = new SubtractAction(m);
1860
1861	<	(fFirst ? f : g).complete(v1);
1862	<	if (!createIncomplete)
1863	<	assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
1864	<	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1865	<	if (createIncomplete) {
1866	<	checkIncomplete(h);
1867	<	assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
1868	<	}
1861	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1862	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1863	>	final Callable<Boolean> complete1 = failFirst ?
1864	>	() -> fst.cancel(mayInterruptIfRunning) :
1865	>	() -> fst.complete(v1);
1866	>	final Callable<Boolean> complete2 = failFirst ?
1867	>	() -> snd.complete(v1) :
1868	>	() -> snd.cancel(mayInterruptIfRunning);
1869
1870	<	checkCompletedWithWrappedCancellationException(h);
1871	<	checkCancelled(!fFirst ? f : g);
1872	<	r.assertNotInvoked();
1873	<	checkCompletedNormally(fFirst ? f : g, v1);
1870	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1871	>	assertTrue(complete1.call());
1872	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1873	>	checkIncomplete(h1);
1874	>	checkIncomplete(h2);
1875	>	assertTrue(complete2.call());
1876	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1877	>
1878	>	checkCompletedWithWrappedCancellationException(h1);
1879	>	checkCompletedWithWrappedCancellationException(h2);
1880	>	checkCompletedWithWrappedCancellationException(h3);
1881	>	r1.assertNotInvoked();
1882	>	r2.assertNotInvoked();
1883	>	r3.assertNotInvoked();
1884	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1885	>	checkCancelled(failFirst ? fst : snd);
1886		}}
1887
1888		/**
#	Line 1546 | Line 1896 | public class CompletableFutureTest exten
1896		{
1897		final CompletableFuture<Integer> f = new CompletableFuture<>();
1898		final CompletableFuture<Integer> g = new CompletableFuture<>();
1899	<	final FailingBiConsumer r = new FailingBiConsumer(m);
1900	<	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1901	<
1902	<	if (fFirst) {
1903	<	f.complete(v1);
1904	<	g.complete(v2);
1905	<	} else {
1906	<	g.complete(v2);
1907	<	f.complete(v1);
1908	<	}
1899	>	final FailingBiConsumer r1 = new FailingBiConsumer(m);
1900	>	final FailingBiConsumer r2 = new FailingBiConsumer(m);
1901	>	final FailingBiConsumer r3 = new FailingBiConsumer(m);
1902	>
1903	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1904	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1905	>	final Integer w1 =  fFirst ? v1 : v2;
1906	>	final Integer w2 = !fFirst ? v1 : v2;
1907	>
1908	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1909	>	assertTrue(fst.complete(w1));
1910	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1911	>	assertTrue(snd.complete(w2));
1912	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1913
1914	<	checkCompletedWithWrappedCFException(h);
1914	>	checkCompletedWithWrappedCFException(h1);
1915	>	checkCompletedWithWrappedCFException(h2);
1916	>	checkCompletedWithWrappedCFException(h3);
1917	>	r1.assertInvoked();
1918	>	r2.assertInvoked();
1919	>	r3.assertInvoked();
1920		checkCompletedNormally(f, v1);
1921		checkCompletedNormally(g, v2);
1922		}}
#	Line 1568 | Line 1927 | public class CompletableFutureTest exten
1927		*/
1928		public void testRunAfterBoth_normalCompletion() {
1929		for (ExecutionMode m : ExecutionMode.values())
1571	–	for (boolean createIncomplete : new boolean[] { true, false })
1930		for (boolean fFirst : new boolean[] { true, false })
1931		for (Integer v1 : new Integer[] { 1, null })
1932		for (Integer v2 : new Integer[] { 2, null })
1933		{
1934		final CompletableFuture<Integer> f = new CompletableFuture<>();
1935		final CompletableFuture<Integer> g = new CompletableFuture<>();
1936	<	final Noop r = new Noop(m);
1937	<
1938	<	if (fFirst) f.complete(v1); else g.complete(v2);
1939	<	if (!createIncomplete)
1940	<	if (!fFirst) f.complete(v1); else g.complete(v2);
1941	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1942	<	if (createIncomplete) {
1943	<	checkIncomplete(h);
1944	<	r.assertNotInvoked();
1945	<	if (!fFirst) f.complete(v1); else g.complete(v2);
1946	<	}
1936	>	final Noop r1 = new Noop(m);
1937	>	final Noop r2 = new Noop(m);
1938	>	final Noop r3 = new Noop(m);
1939	>
1940	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1941	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1942	>	final Integer w1 =  fFirst ? v1 : v2;
1943	>	final Integer w2 = !fFirst ? v1 : v2;
1944	>
1945	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
1946	>	assertTrue(fst.complete(w1));
1947	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
1948	>	checkIncomplete(h1);
1949	>	checkIncomplete(h2);
1950	>	r1.assertNotInvoked();
1951	>	r2.assertNotInvoked();
1952	>	assertTrue(snd.complete(w2));
1953	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
1954
1955	<	checkCompletedNormally(h, null);
1956	<	r.assertInvoked();
1955	>	checkCompletedNormally(h1, null);
1956	>	checkCompletedNormally(h2, null);
1957	>	checkCompletedNormally(h3, null);
1958	>	r1.assertInvoked();
1959	>	r2.assertInvoked();
1960	>	r3.assertInvoked();
1961		checkCompletedNormally(f, v1);
1962		checkCompletedNormally(g, v2);
1963		}}
#	Line 1597 | Line 1966 | public class CompletableFutureTest exten
1966		* runAfterBoth result completes exceptionally after exceptional
1967		* completion of either source
1968		*/
1969	<	public void testRunAfterBoth_exceptionalCompletion() {
1969	>	public void testRunAfterBoth_exceptionalCompletion() throws Throwable {
1970		for (ExecutionMode m : ExecutionMode.values())
1602	–	for (boolean createIncomplete : new boolean[] { true, false })
1971		for (boolean fFirst : new boolean[] { true, false })
1972	+	for (boolean failFirst : new boolean[] { true, false })
1973		for (Integer v1 : new Integer[] { 1, null })
1974		{
1975		final CompletableFuture<Integer> f = new CompletableFuture<>();
1976		final CompletableFuture<Integer> g = new CompletableFuture<>();
1977		final CFException ex = new CFException();
1978	<	final Noop r = new Noop(m);
1979	<
1980	<	(fFirst ? f : g).complete(v1);
1981	<	if (!createIncomplete)
1982	<	(!fFirst ? f : g).completeExceptionally(ex);
1983	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1984	<	if (createIncomplete) {
1985	<	checkIncomplete(h);
1986	<	(!fFirst ? f : g).completeExceptionally(ex);
1987	<	}
1988	<
1989	<	checkCompletedWithWrappedCFException(h, ex);
1990	<	r.assertNotInvoked();
1991	<	checkCompletedNormally(fFirst ? f : g, v1);
1992	<	checkCompletedWithWrappedCFException(!fFirst ? f : g, ex);
1978	>	final Noop r1 = new Noop(m);
1979	>	final Noop r2 = new Noop(m);
1980	>	final Noop r3 = new Noop(m);
1981	>
1982	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1983	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1984	>	final Callable<Boolean> complete1 = failFirst ?
1985	>	() -> fst.completeExceptionally(ex) :
1986	>	() -> fst.complete(v1);
1987	>	final Callable<Boolean> complete2 = failFirst ?
1988	>	() -> snd.complete(v1) :
1989	>	() -> snd.completeExceptionally(ex);
1990	>
1991	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
1992	>	assertTrue(complete1.call());
1993	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
1994	>	checkIncomplete(h1);
1995	>	checkIncomplete(h2);
1996	>	assertTrue(complete2.call());
1997	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
1998	>
1999	>	checkCompletedWithWrappedException(h1, ex);
2000	>	checkCompletedWithWrappedException(h2, ex);
2001	>	checkCompletedWithWrappedException(h3, ex);
2002	>	r1.assertNotInvoked();
2003	>	r2.assertNotInvoked();
2004	>	r3.assertNotInvoked();
2005	>	checkCompletedNormally(failFirst ? snd : fst, v1);
2006	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
2007		}}
2008
2009		/**
2010		* runAfterBoth result completes exceptionally if either source cancelled
2011		*/
2012	<	public void testRunAfterBoth_sourceCancelled() {
2012	>	public void testRunAfterBoth_sourceCancelled() throws Throwable {
2013		for (ExecutionMode m : ExecutionMode.values())
2014		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1632	–	for (boolean createIncomplete : new boolean[] { true, false })
2015		for (boolean fFirst : new boolean[] { true, false })
2016	+	for (boolean failFirst : new boolean[] { true, false })
2017		for (Integer v1 : new Integer[] { 1, null })
2018		{
2019		final CompletableFuture<Integer> f = new CompletableFuture<>();
2020		final CompletableFuture<Integer> g = new CompletableFuture<>();
2021	<	final Noop r = new Noop(m);
2021	>	final Noop r1 = new Noop(m);
2022	>	final Noop r2 = new Noop(m);
2023	>	final Noop r3 = new Noop(m);
2024
2025	+	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2026	+	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2027	+	final Callable<Boolean> complete1 = failFirst ?
2028	+	() -> fst.cancel(mayInterruptIfRunning) :
2029	+	() -> fst.complete(v1);
2030	+	final Callable<Boolean> complete2 = failFirst ?
2031	+	() -> snd.complete(v1) :
2032	+	() -> snd.cancel(mayInterruptIfRunning);
2033
2034	<	(fFirst ? f : g).complete(v1);
2035	<	if (!createIncomplete)
2036	<	assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
2037	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
2038	<	if (createIncomplete) {
2039	<	checkIncomplete(h);
2040	<	assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
1648	<	}
2034	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2035	>	assertTrue(complete1.call());
2036	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2037	>	checkIncomplete(h1);
2038	>	checkIncomplete(h2);
2039	>	assertTrue(complete2.call());
2040	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2041
2042	<	checkCompletedWithWrappedCancellationException(h);
2043	<	checkCancelled(!fFirst ? f : g);
2044	<	r.assertNotInvoked();
2045	<	checkCompletedNormally(fFirst ? f : g, v1);
2042	>	checkCompletedWithWrappedCancellationException(h1);
2043	>	checkCompletedWithWrappedCancellationException(h2);
2044	>	checkCompletedWithWrappedCancellationException(h3);
2045	>	r1.assertNotInvoked();
2046	>	r2.assertNotInvoked();
2047	>	r3.assertNotInvoked();
2048	>	checkCompletedNormally(failFirst ? snd : fst, v1);
2049	>	checkCancelled(failFirst ? fst : snd);
2050		}}
2051
2052		/**
#	Line 1666 | Line 2062 | public class CompletableFutureTest exten
2062		final CompletableFuture<Integer> g = new CompletableFuture<>();
2063		final FailingRunnable r1 = new FailingRunnable(m);
2064		final FailingRunnable r2 = new FailingRunnable(m);
2065	+	final FailingRunnable r3 = new FailingRunnable(m);
2066
2067	<	CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2068	<	if (fFirst) {
2069	<	f.complete(v1);
2070	<	g.complete(v2);
2071	<	} else {
2072	<	g.complete(v2);
2073	<	f.complete(v1);
2074	<	}
2075	<	CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2067	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2068	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2069	>	final Integer w1 =  fFirst ? v1 : v2;
2070	>	final Integer w2 = !fFirst ? v1 : v2;
2071	>
2072	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2073	>	assertTrue(fst.complete(w1));
2074	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2075	>	assertTrue(snd.complete(w2));
2076	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2077
2078		checkCompletedWithWrappedCFException(h1);
2079		checkCompletedWithWrappedCFException(h2);
2080	+	checkCompletedWithWrappedCFException(h3);
2081	+	r1.assertInvoked();
2082	+	r2.assertInvoked();
2083	+	r3.assertInvoked();
2084		checkCompletedNormally(f, v1);
2085		checkCompletedNormally(g, v2);
2086		}}
#	Line 1752 | Line 2154 | public class CompletableFutureTest exten
2154		rs[0].assertNotInvoked();
2155		rs[1].assertNotInvoked();
2156		f.completeExceptionally(ex);
2157	<	checkCompletedWithWrappedCFException(h0, ex);
2158	<	checkCompletedWithWrappedCFException(h1, ex);
2157	>	checkCompletedWithWrappedException(h0, ex);
2158	>	checkCompletedWithWrappedException(h1, ex);
2159		final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2160		final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2161	<	checkCompletedWithWrappedCFException(h2, ex);
2162	<	checkCompletedWithWrappedCFException(h3, ex);
2161	>	checkCompletedWithWrappedException(h2, ex);
2162	>	checkCompletedWithWrappedException(h3, ex);
2163		g.complete(v1);
2164
2165		// unspecified behavior - both source completions available
#	Line 1767 | Line 2169 | public class CompletableFutureTest exten
2169		assertEquals(inc(v1), h4.join());
2170		rs[4].assertValue(inc(v1));
2171		} catch (CompletionException ok) {
2172	<	checkCompletedWithWrappedCFException(h4, ex);
2172	>	checkCompletedWithWrappedException(h4, ex);
2173		rs[4].assertNotInvoked();
2174		}
2175		try {
2176		assertEquals(inc(v1), h5.join());
2177		rs[5].assertValue(inc(v1));
2178		} catch (CompletionException ok) {
2179	<	checkCompletedWithWrappedCFException(h5, ex);
2179	>	checkCompletedWithWrappedException(h5, ex);
2180		rs[5].assertNotInvoked();
2181		}
2182
2183	<	checkCompletedWithWrappedCFException(f, ex);
2183	>	checkCompletedExceptionally(f, ex);
2184		checkCompletedNormally(g, v1);
2185	<	checkCompletedWithWrappedCFException(h0, ex);
2186	<	checkCompletedWithWrappedCFException(h1, ex);
2187	<	checkCompletedWithWrappedCFException(h2, ex);
2188	<	checkCompletedWithWrappedCFException(h3, ex);
2189	<	checkCompletedWithWrappedCFException(h4, ex);
2185	>	checkCompletedWithWrappedException(h0, ex);
2186	>	checkCompletedWithWrappedException(h1, ex);
2187	>	checkCompletedWithWrappedException(h2, ex);
2188	>	checkCompletedWithWrappedException(h3, ex);
2189	>	checkCompletedWithWrappedException(h4, ex);
2190		for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2191		}}
2192
#	Line 1801 | Line 2203 | public class CompletableFutureTest exten
2203
2204		final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2205		final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2206	<	if (fFirst) {
2207	<	f.complete(v1);
1806	<	g.completeExceptionally(ex);
1807	<	} else {
1808	<	g.completeExceptionally(ex);
1809	<	f.complete(v1);
1810	<	}
2206	>	assertTrue(fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2207	>	assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2208		final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2209		final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2210
#	Line 1816 | Line 2213 | public class CompletableFutureTest exten
2213		assertEquals(inc(v1), h0.join());
2214		rs[0].assertValue(inc(v1));
2215		} catch (CompletionException ok) {
2216	<	checkCompletedWithWrappedCFException(h0, ex);
2216	>	checkCompletedWithWrappedException(h0, ex);
2217		rs[0].assertNotInvoked();
2218		}
2219		try {
2220		assertEquals(inc(v1), h1.join());
2221		rs[1].assertValue(inc(v1));
2222		} catch (CompletionException ok) {
2223	<	checkCompletedWithWrappedCFException(h1, ex);
2223	>	checkCompletedWithWrappedException(h1, ex);
2224		rs[1].assertNotInvoked();
2225		}
2226		try {
2227		assertEquals(inc(v1), h2.join());
2228		rs[2].assertValue(inc(v1));
2229		} catch (CompletionException ok) {
2230	<	checkCompletedWithWrappedCFException(h2, ex);
2230	>	checkCompletedWithWrappedException(h2, ex);
2231		rs[2].assertNotInvoked();
2232		}
2233		try {
2234		assertEquals(inc(v1), h3.join());
2235		rs[3].assertValue(inc(v1));
2236		} catch (CompletionException ok) {
2237	<	checkCompletedWithWrappedCFException(h3, ex);
2237	>	checkCompletedWithWrappedException(h3, ex);
2238		rs[3].assertNotInvoked();
2239		}
2240
2241		checkCompletedNormally(f, v1);
2242	<	checkCompletedWithWrappedCFException(g, ex);
2242	>	checkCompletedExceptionally(g, ex);
2243		}}
2244
2245		/**
#	Line 1913 | Line 2310 | public class CompletableFutureTest exten
2310
2311		final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2312		final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2313	<	if (fFirst) {
2314	<	f.complete(v1);
1918	<	g.cancel(mayInterruptIfRunning);
1919	<	} else {
1920	<	g.cancel(mayInterruptIfRunning);
1921	<	f.complete(v1);
1922	<	}
2313	>	assertTrue(fFirst ? f.complete(v1) : g.cancel(mayInterruptIfRunning));
2314	>	assertTrue(!fFirst ? f.complete(v1) : g.cancel(mayInterruptIfRunning));
2315		final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2316		final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2317
#	Line 2071 | Line 2463 | public class CompletableFutureTest exten
2463		rs[0].assertNotInvoked();
2464		rs[1].assertNotInvoked();
2465		f.completeExceptionally(ex);
2466	<	checkCompletedWithWrappedCFException(h0, ex);
2467	<	checkCompletedWithWrappedCFException(h1, ex);
2466	>	checkCompletedWithWrappedException(h0, ex);
2467	>	checkCompletedWithWrappedException(h1, ex);
2468		final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2469		final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2470	<	checkCompletedWithWrappedCFException(h2, ex);
2471	<	checkCompletedWithWrappedCFException(h3, ex);
2470	>	checkCompletedWithWrappedException(h2, ex);
2471	>	checkCompletedWithWrappedException(h3, ex);
2472
2473		g.complete(v1);
2474
#	Line 2087 | Line 2479 | public class CompletableFutureTest exten
2479		assertNull(h4.join());
2480		rs[4].assertValue(v1);
2481		} catch (CompletionException ok) {
2482	<	checkCompletedWithWrappedCFException(h4, ex);
2482	>	checkCompletedWithWrappedException(h4, ex);
2483		rs[4].assertNotInvoked();
2484		}
2485		try {
2486		assertNull(h5.join());
2487		rs[5].assertValue(v1);
2488		} catch (CompletionException ok) {
2489	<	checkCompletedWithWrappedCFException(h5, ex);
2489	>	checkCompletedWithWrappedException(h5, ex);
2490		rs[5].assertNotInvoked();
2491		}
2492
2493	<	checkCompletedWithWrappedCFException(f, ex);
2493	>	checkCompletedExceptionally(f, ex);
2494		checkCompletedNormally(g, v1);
2495	<	checkCompletedWithWrappedCFException(h0, ex);
2496	<	checkCompletedWithWrappedCFException(h1, ex);
2497	<	checkCompletedWithWrappedCFException(h2, ex);
2498	<	checkCompletedWithWrappedCFException(h3, ex);
2499	<	checkCompletedWithWrappedCFException(h4, ex);
2495	>	checkCompletedWithWrappedException(h0, ex);
2496	>	checkCompletedWithWrappedException(h1, ex);
2497	>	checkCompletedWithWrappedException(h2, ex);
2498	>	checkCompletedWithWrappedException(h3, ex);
2499	>	checkCompletedWithWrappedException(h4, ex);
2500		for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2501		}}
2502
#	Line 2121 | Line 2513 | public class CompletableFutureTest exten
2513
2514		final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2515		final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2516	<	if (fFirst) {
2517	<	f.complete(v1);
2126	<	g.completeExceptionally(ex);
2127	<	} else {
2128	<	g.completeExceptionally(ex);
2129	<	f.complete(v1);
2130	<	}
2516	>	assertTrue(fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2517	>	assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2518		final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2519		final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2520
#	Line 2136 | Line 2523 | public class CompletableFutureTest exten
2523		assertEquals(null, h0.join());
2524		rs[0].assertValue(v1);
2525		} catch (CompletionException ok) {
2526	<	checkCompletedWithWrappedCFException(h0, ex);
2526	>	checkCompletedWithWrappedException(h0, ex);
2527		rs[0].assertNotInvoked();
2528		}
2529		try {
2530		assertEquals(null, h1.join());
2531		rs[1].assertValue(v1);
2532		} catch (CompletionException ok) {
2533	<	checkCompletedWithWrappedCFException(h1, ex);
2533	>	checkCompletedWithWrappedException(h1, ex);
2534		rs[1].assertNotInvoked();
2535		}
2536		try {
2537		assertEquals(null, h2.join());
2538		rs[2].assertValue(v1);
2539		} catch (CompletionException ok) {
2540	<	checkCompletedWithWrappedCFException(h2, ex);
2540	>	checkCompletedWithWrappedException(h2, ex);
2541		rs[2].assertNotInvoked();
2542		}
2543		try {
2544		assertEquals(null, h3.join());
2545		rs[3].assertValue(v1);
2546		} catch (CompletionException ok) {
2547	<	checkCompletedWithWrappedCFException(h3, ex);
2547	>	checkCompletedWithWrappedException(h3, ex);
2548		rs[3].assertNotInvoked();
2549		}
2550
2551		checkCompletedNormally(f, v1);
2552	<	checkCompletedWithWrappedCFException(g, ex);
2552	>	checkCompletedExceptionally(g, ex);
2553		}}
2554
2555		/**
#	Line 2330 | Line 2717 | public class CompletableFutureTest exten
2717		checkIncomplete(h1);
2718		rs[0].assertNotInvoked();
2719		rs[1].assertNotInvoked();
2720	<	f.completeExceptionally(ex);
2721	<	checkCompletedWithWrappedCFException(h0, ex);
2722	<	checkCompletedWithWrappedCFException(h1, ex);
2720	>	assertTrue(f.completeExceptionally(ex));
2721	>	checkCompletedWithWrappedException(h0, ex);
2722	>	checkCompletedWithWrappedException(h1, ex);
2723		final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2724		final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2725	<	checkCompletedWithWrappedCFException(h2, ex);
2726	<	checkCompletedWithWrappedCFException(h3, ex);
2725	>	checkCompletedWithWrappedException(h2, ex);
2726	>	checkCompletedWithWrappedException(h3, ex);
2727
2728	<	g.complete(v1);
2728	>	assertTrue(g.complete(v1));
2729
2730		// unspecified behavior - both source completions available
2731		final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
#	Line 2347 | Line 2734 | public class CompletableFutureTest exten
2734		assertNull(h4.join());
2735		rs[4].assertInvoked();
2736		} catch (CompletionException ok) {
2737	<	checkCompletedWithWrappedCFException(h4, ex);
2737	>	checkCompletedWithWrappedException(h4, ex);
2738		rs[4].assertNotInvoked();
2739		}
2740		try {
2741		assertNull(h5.join());
2742		rs[5].assertInvoked();
2743		} catch (CompletionException ok) {
2744	<	checkCompletedWithWrappedCFException(h5, ex);
2744	>	checkCompletedWithWrappedException(h5, ex);
2745		rs[5].assertNotInvoked();
2746		}
2747
2748	<	checkCompletedWithWrappedCFException(f, ex);
2748	>	checkCompletedExceptionally(f, ex);
2749		checkCompletedNormally(g, v1);
2750	<	checkCompletedWithWrappedCFException(h0, ex);
2751	<	checkCompletedWithWrappedCFException(h1, ex);
2752	<	checkCompletedWithWrappedCFException(h2, ex);
2753	<	checkCompletedWithWrappedCFException(h3, ex);
2754	<	checkCompletedWithWrappedCFException(h4, ex);
2750	>	checkCompletedWithWrappedException(h0, ex);
2751	>	checkCompletedWithWrappedException(h1, ex);
2752	>	checkCompletedWithWrappedException(h2, ex);
2753	>	checkCompletedWithWrappedException(h3, ex);
2754	>	checkCompletedWithWrappedException(h4, ex);
2755		for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2756		}}
2757
2758	+	public void testRunAfterEither_exceptionalCompletion2() {
2759	+	for (ExecutionMode m : ExecutionMode.values())
2760	+	for (boolean fFirst : new boolean[] { true, false })
2761	+	for (Integer v1 : new Integer[] { 1, null })
2762	+	{
2763	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
2764	+	final CompletableFuture<Integer> g = new CompletableFuture<>();
2765	+	final CFException ex = new CFException();
2766	+	final Noop[] rs = new Noop[6];
2767	+	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2768	+
2769	+	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2770	+	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2771	+	assertTrue( fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2772	+	assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2773	+	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2774	+	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2775	+
2776	+	// unspecified behavior - both source completions available
2777	+	try {
2778	+	assertEquals(null, h0.join());
2779	+	rs[0].assertInvoked();
2780	+	} catch (CompletionException ok) {
2781	+	checkCompletedWithWrappedException(h0, ex);
2782	+	rs[0].assertNotInvoked();
2783	+	}
2784	+	try {
2785	+	assertEquals(null, h1.join());
2786	+	rs[1].assertInvoked();
2787	+	} catch (CompletionException ok) {
2788	+	checkCompletedWithWrappedException(h1, ex);
2789	+	rs[1].assertNotInvoked();
2790	+	}
2791	+	try {
2792	+	assertEquals(null, h2.join());
2793	+	rs[2].assertInvoked();
2794	+	} catch (CompletionException ok) {
2795	+	checkCompletedWithWrappedException(h2, ex);
2796	+	rs[2].assertNotInvoked();
2797	+	}
2798	+	try {
2799	+	assertEquals(null, h3.join());
2800	+	rs[3].assertInvoked();
2801	+	} catch (CompletionException ok) {
2802	+	checkCompletedWithWrappedException(h3, ex);
2803	+	rs[3].assertNotInvoked();
2804	+	}
2805	+
2806	+	checkCompletedNormally(f, v1);
2807	+	checkCompletedExceptionally(g, ex);
2808	+	}}
2809	+
2810		/**
2811		* runAfterEither result completes exceptionally if either source cancelled
2812		*/
#	Line 2395 | Line 2834 | public class CompletableFutureTest exten
2834		checkCompletedWithWrappedCancellationException(h2);
2835		checkCompletedWithWrappedCancellationException(h3);
2836
2837	<	g.complete(v1);
2837	>	assertTrue(g.complete(v1));
2838
2839		// unspecified behavior - both source completions available
2840		final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
#	Line 2439 | Line 2878 | public class CompletableFutureTest exten
2878
2879		final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2880		final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2881	<	f.complete(v1);
2881	>	assertTrue(f.complete(v1));
2882		final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2883		final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2884		checkCompletedWithWrappedCFException(h0);
#	Line 2447 | Line 2886 | public class CompletableFutureTest exten
2886		checkCompletedWithWrappedCFException(h2);
2887		checkCompletedWithWrappedCFException(h3);
2888		for (int i = 0; i < 4; i++) rs[i].assertInvoked();
2889	<	g.complete(v2);
2889	>	assertTrue(g.complete(v2));
2890		final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2891		final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2892		checkCompletedWithWrappedCFException(h4);
#	Line 2468 | Line 2907 | public class CompletableFutureTest exten
2907		{
2908		final CompletableFuture<Integer> f = new CompletableFuture<>();
2909		final CompletableFutureInc r = new CompletableFutureInc(m);
2910	<	if (!createIncomplete) f.complete(v1);
2910	>	if (!createIncomplete) assertTrue(f.complete(v1));
2911		final CompletableFuture<Integer> g = m.thenCompose(f, r);
2912	<	if (createIncomplete) f.complete(v1);
2912	>	if (createIncomplete) assertTrue(f.complete(v1));
2913
2914		checkCompletedNormally(g, inc(v1));
2915		checkCompletedNormally(f, v1);
2916	<	r.assertInvoked();
2916	>	r.assertValue(v1);
2917		}}
2918
2919		/**
#	Line 2492 | Line 2931 | public class CompletableFutureTest exten
2931		final CompletableFuture<Integer> g = m.thenCompose(f, r);
2932		if (createIncomplete) f.completeExceptionally(ex);
2933
2934	<	checkCompletedWithWrappedCFException(g, ex);
2935	<	checkCompletedWithWrappedCFException(f, ex);
2934	>	checkCompletedWithWrappedException(g, ex);
2935	>	checkCompletedExceptionally(f, ex);
2936		r.assertNotInvoked();
2937		}}
2938
#	Line 2508 | Line 2947 | public class CompletableFutureTest exten
2947		final CompletableFuture<Integer> f = new CompletableFuture<>();
2948		final FailingCompletableFutureFunction r
2949		= new FailingCompletableFutureFunction(m);
2950	<	if (!createIncomplete) f.complete(v1);
2950	>	if (!createIncomplete) assertTrue(f.complete(v1));
2951		final CompletableFuture<Integer> g = m.thenCompose(f, r);
2952	<	if (createIncomplete) f.complete(v1);
2952	>	if (createIncomplete) assertTrue(f.complete(v1));
2953
2954		checkCompletedWithWrappedCFException(g);
2955		checkCompletedNormally(f, v1);
#	Line 2537 | Line 2976 | public class CompletableFutureTest exten
2976		checkCancelled(f);
2977		}}
2978
2979	+	/**
2980	+	* thenCompose result completes exceptionally if the result of the action does
2981	+	*/
2982	+	public void testThenCompose_actionReturnsFailingFuture() {
2983	+	for (ExecutionMode m : ExecutionMode.values())
2984	+	for (int order = 0; order < 6; order++)
2985	+	for (Integer v1 : new Integer[] { 1, null })
2986	+	{
2987	+	final CFException ex = new CFException();
2988	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
2989	+	final CompletableFuture<Integer> g = new CompletableFuture<>();
2990	+	final CompletableFuture<Integer> h;
2991	+	// Test all permutations of orders
2992	+	switch (order) {
2993	+	case 0:
2994	+	assertTrue(f.complete(v1));
2995	+	assertTrue(g.completeExceptionally(ex));
2996	+	h = m.thenCompose(f, (x -> g));
2997	+	break;
2998	+	case 1:
2999	+	assertTrue(f.complete(v1));
3000	+	h = m.thenCompose(f, (x -> g));
3001	+	assertTrue(g.completeExceptionally(ex));
3002	+	break;
3003	+	case 2:
3004	+	assertTrue(g.completeExceptionally(ex));
3005	+	assertTrue(f.complete(v1));
3006	+	h = m.thenCompose(f, (x -> g));
3007	+	break;
3008	+	case 3:
3009	+	assertTrue(g.completeExceptionally(ex));
3010	+	h = m.thenCompose(f, (x -> g));
3011	+	assertTrue(f.complete(v1));
3012	+	break;
3013	+	case 4:
3014	+	h = m.thenCompose(f, (x -> g));
3015	+	assertTrue(f.complete(v1));
3016	+	assertTrue(g.completeExceptionally(ex));
3017	+	break;
3018	+	case 5:
3019	+	h = m.thenCompose(f, (x -> g));
3020	+	assertTrue(f.complete(v1));
3021	+	assertTrue(g.completeExceptionally(ex));
3022	+	break;
3023	+	default: throw new AssertionError();
3024	+	}
3025	+
3026	+	checkCompletedExceptionally(g, ex);
3027	+	checkCompletedWithWrappedException(h, ex);
3028	+	checkCompletedNormally(f, v1);
3029	+	}}
3030	+
3031		// other static methods
3032
3033		/**
#	Line 2553 | Line 3044 | public class CompletableFutureTest exten
3044		* when all components complete normally
3045		*/
3046		public void testAllOf_normal() throws Exception {
3047	<	for (int k = 1; k < 20; ++k) {
3047	>	for (int k = 1; k < 10; k++) {
3048		CompletableFuture<Integer>[] fs
3049		= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3050	<	for (int i = 0; i < k; ++i)
3050	>	for (int i = 0; i < k; i++)
3051		fs[i] = new CompletableFuture<>();
3052		CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3053	<	for (int i = 0; i < k; ++i) {
3053	>	for (int i = 0; i < k; i++) {
3054		checkIncomplete(f);
3055		checkIncomplete(CompletableFuture.allOf(fs));
3056		fs[i].complete(one);
#	Line 2570 | Line 3061 | public class CompletableFutureTest exten
3061		}
3062
3063		public void testAllOf_backwards() throws Exception {
3064	<	for (int k = 1; k < 20; ++k) {
3064	>	for (int k = 1; k < 10; k++) {
3065		CompletableFuture<Integer>[] fs
3066		= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3067	<	for (int i = 0; i < k; ++i)
3067	>	for (int i = 0; i < k; i++)
3068		fs[i] = new CompletableFuture<>();
3069		CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3070		for (int i = k - 1; i >= 0; i--) {
#	Line 2586 | Line 3077 | public class CompletableFutureTest exten
3077		}
3078		}
3079
3080	+	public void testAllOf_exceptional() throws Exception {
3081	+	for (int k = 1; k < 10; k++) {
3082	+	CompletableFuture<Integer>[] fs
3083	+	= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3084	+	CFException ex = new CFException();
3085	+	for (int i = 0; i < k; i++)
3086	+	fs[i] = new CompletableFuture<>();
3087	+	CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3088	+	for (int i = 0; i < k; i++) {
3089	+	checkIncomplete(f);
3090	+	checkIncomplete(CompletableFuture.allOf(fs));
3091	+	if (i != k / 2) {
3092	+	fs[i].complete(i);
3093	+	checkCompletedNormally(fs[i], i);
3094	+	} else {
3095	+	fs[i].completeExceptionally(ex);
3096	+	checkCompletedExceptionally(fs[i], ex);
3097	+	}
3098	+	}
3099	+	checkCompletedWithWrappedException(f, ex);
3100	+	checkCompletedWithWrappedException(CompletableFuture.allOf(fs), ex);
3101	+	}
3102	+	}
3103	+
3104		/**
3105		* anyOf(no component futures) returns an incomplete future
3106		*/
3107		public void testAnyOf_empty() throws Exception {
3108	+	for (Integer v1 : new Integer[] { 1, null })
3109	+	{
3110		CompletableFuture<Object> f = CompletableFuture.anyOf();
3111		checkIncomplete(f);
3112	<	}
3112	>
3113	>	f.complete(v1);
3114	>	checkCompletedNormally(f, v1);
3115	>	}}
3116
3117		/**
3118		* anyOf returns a future completed normally with a value when
3119		* a component future does
3120		*/
3121		public void testAnyOf_normal() throws Exception {
3122	<	for (int k = 0; k < 10; ++k) {
3122	>	for (int k = 0; k < 10; k++) {
3123		CompletableFuture[] fs = new CompletableFuture[k];
3124	<	for (int i = 0; i < k; ++i)
3124	>	for (int i = 0; i < k; i++)
3125		fs[i] = new CompletableFuture<>();
3126		CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3127		checkIncomplete(f);
3128	<	for (int i = 0; i < k; ++i) {
3129	<	fs[i].complete(one);
3130	<	checkCompletedNormally(f, one);
3131	<	checkCompletedNormally(CompletableFuture.anyOf(fs), one);
3128	>	for (int i = 0; i < k; i++) {
3129	>	fs[i].complete(i);
3130	>	checkCompletedNormally(f, 0);
3131	>	int x = (int) CompletableFuture.anyOf(fs).join();
3132	>	assertTrue(0 <= x && x <= i);
3133	>	}
3134	>	}
3135	>	}
3136	>	public void testAnyOf_normal_backwards() throws Exception {
3137	>	for (int k = 0; k < 10; k++) {
3138	>	CompletableFuture[] fs = new CompletableFuture[k];
3139	>	for (int i = 0; i < k; i++)
3140	>	fs[i] = new CompletableFuture<>();
3141	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3142	>	checkIncomplete(f);
3143	>	for (int i = k - 1; i >= 0; i--) {
3144	>	fs[i].complete(i);
3145	>	checkCompletedNormally(f, k - 1);
3146	>	int x = (int) CompletableFuture.anyOf(fs).join();
3147	>	assertTrue(i <= x && x <= k - 1);
3148		}
3149		}
3150		}
#	Line 2617 | Line 3153 | public class CompletableFutureTest exten
3153		* anyOf result completes exceptionally when any component does.
3154		*/
3155		public void testAnyOf_exceptional() throws Exception {
3156	<	for (int k = 0; k < 10; ++k) {
3156	>	for (int k = 0; k < 10; k++) {
3157		CompletableFuture[] fs = new CompletableFuture[k];
3158	<	for (int i = 0; i < k; ++i)
3158	>	CFException[] exs = new CFException[k];
3159	>	for (int i = 0; i < k; i++) {
3160		fs[i] = new CompletableFuture<>();
3161	+	exs[i] = new CFException();
3162	+	}
3163		CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3164		checkIncomplete(f);
3165	<	for (int i = 0; i < k; ++i) {
3166	<	fs[i].completeExceptionally(new CFException());
3167	<	checkCompletedWithWrappedCFException(f);
3165	>	for (int i = 0; i < k; i++) {
3166	>	fs[i].completeExceptionally(exs[i]);
3167	>	checkCompletedWithWrappedException(f, exs[0]);
3168	>	checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3169	>	}
3170	>	}
3171	>	}
3172	>
3173	>	public void testAnyOf_exceptional_backwards() throws Exception {
3174	>	for (int k = 0; k < 10; k++) {
3175	>	CompletableFuture[] fs = new CompletableFuture[k];
3176	>	CFException[] exs = new CFException[k];
3177	>	for (int i = 0; i < k; i++) {
3178	>	fs[i] = new CompletableFuture<>();
3179	>	exs[i] = new CFException();
3180	>	}
3181	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3182	>	checkIncomplete(f);
3183	>	for (int i = k - 1; i >= 0; i--) {
3184	>	fs[i].completeExceptionally(exs[i]);
3185	>	checkCompletedWithWrappedException(f, exs[k - 1]);
3186		checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3187		}
3188		}
#	Line 2638 | Line 3195 | public class CompletableFutureTest exten
3195		CompletableFuture<Integer> f = new CompletableFuture<>();
3196		CompletableFuture<Integer> g = new CompletableFuture<>();
3197		CompletableFuture<Integer> nullFuture = (CompletableFuture<Integer>)null;
2641	–	CompletableFuture<?> h;
3198		ThreadExecutor exec = new ThreadExecutor();
3199
3200		Runnable[] throwingActions = {
3201		() -> CompletableFuture.supplyAsync(null),
3202		() -> CompletableFuture.supplyAsync(null, exec),
3203	<	() -> CompletableFuture.supplyAsync(new IntegerSupplier(ExecutionMode.DEFAULT, 42), null),
3203	>	() -> CompletableFuture.supplyAsync(new IntegerSupplier(ExecutionMode.SYNC, 42), null),
3204
3205		() -> CompletableFuture.runAsync(null),
3206		() -> CompletableFuture.runAsync(null, exec),
#	Line 2735 | Line 3291 | public class CompletableFutureTest exten
3291		() -> CompletableFuture.anyOf(null, f),
3292
3293		() -> f.obtrudeException(null),
3294	+
3295	+	() -> CompletableFuture.delayedExecutor(1L, SECONDS, null),
3296	+	() -> CompletableFuture.delayedExecutor(1L, null, new ThreadExecutor()),
3297	+	() -> CompletableFuture.delayedExecutor(1L, null),
3298	+
3299	+	() -> f.orTimeout(1L, null),
3300	+	() -> f.completeOnTimeout(42, 1L, null),
3301	+
3302	+	() -> CompletableFuture.failedFuture(null),
3303	+	() -> CompletableFuture.failedStage(null),
3304		};
3305
3306		assertThrows(NullPointerException.class, throwingActions);
#	Line 2749 | Line 3315 | public class CompletableFutureTest exten
3315		assertSame(f, f.toCompletableFuture());
3316		}
3317
3318	+	// jdk9
3319	+
3320		/**
3321	<	* whenComplete action executes on normal completion, propagating
2754	<	* source result.
3321	>	* newIncompleteFuture returns an incomplete CompletableFuture
3322		*/
3323	<	public void testWhenComplete_normalCompletion1() {
2757	<	for (ExecutionMode m : ExecutionMode.values())
2758	<	for (boolean createIncomplete : new boolean[] { true, false })
3323	>	public void testNewIncompleteFuture() {
3324		for (Integer v1 : new Integer[] { 1, null })
3325		{
3326	<	final AtomicInteger a = new AtomicInteger(0);
3327	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
3328	<	if (!createIncomplete) f.complete(v1);
3329	<	final CompletableFuture<Integer> g = m.whenComplete
3330	<	(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);
3326	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3327	>	CompletableFuture<Integer> g = f.newIncompleteFuture();
3328	>	checkIncomplete(f);
3329	>	checkIncomplete(g);
3330	>	f.complete(v1);
3331		checkCompletedNormally(f, v1);
3332	<	assertEquals(1, a.get());
3332	>	checkIncomplete(g);
3333	>	g.complete(v1);
3334	>	checkCompletedNormally(g, v1);
3335	>	assertSame(g.getClass(), CompletableFuture.class);
3336		}}
3337
3338		/**
3339	<	* whenComplete action executes on exceptional completion, propagating
2780	<	* source result.
3339	>	* completedStage returns a completed CompletionStage
3340		*/
3341	<	public void testWhenComplete_exceptionalCompletion() {
3342	<	for (ExecutionMode m : ExecutionMode.values())
3343	<	for (boolean createIncomplete : new boolean[] { true, false })
3341	>	public void testCompletedStage() {
3342	>	AtomicInteger x = new AtomicInteger(0);
3343	>	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3344	>	CompletionStage<Integer> f = CompletableFuture.completedStage(1);
3345	>	f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3346	>	assertEquals(x.get(), 1);
3347	>	assertNull(r.get());
3348	>	}
3349	>
3350	>	/**
3351	>	* defaultExecutor by default returns the commonPool if
3352	>	* it supports more than one thread.
3353	>	*/
3354	>	public void testDefaultExecutor() {
3355	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3356	>	Executor e = f.defaultExecutor();
3357	>	Executor c = ForkJoinPool.commonPool();
3358	>	if (ForkJoinPool.getCommonPoolParallelism() > 1)
3359	>	assertSame(e, c);
3360	>	else
3361	>	assertNotSame(e, c);
3362	>	}
3363	>
3364	>	/**
3365	>	* failedFuture returns a CompletableFuture completed
3366	>	* exceptionally with the given Exception
3367	>	*/
3368	>	public void testFailedFuture() {
3369	>	CFException ex = new CFException();
3370	>	CompletableFuture<Integer> f = CompletableFuture.failedFuture(ex);
3371	>	checkCompletedExceptionally(f, ex);
3372	>	}
3373	>
3374	>	/**
3375	>	* failedFuture(null) throws NPE
3376	>	*/
3377	>	public void testFailedFuture_null() {
3378	>	try {
3379	>	CompletableFuture<Integer> f = CompletableFuture.failedFuture(null);
3380	>	shouldThrow();
3381	>	} catch (NullPointerException success) {}
3382	>	}
3383	>
3384	>	/**
3385	>	* copy returns a CompletableFuture that is completed normally,
3386	>	* with the same value, when source is.
3387	>	*/
3388	>	public void testCopy() {
3389	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3390	>	CompletableFuture<Integer> g = f.copy();
3391	>	checkIncomplete(f);
3392	>	checkIncomplete(g);
3393	>	f.complete(1);
3394	>	checkCompletedNormally(f, 1);
3395	>	checkCompletedNormally(g, 1);
3396	>	}
3397	>
3398	>	/**
3399	>	* copy returns a CompletableFuture that is completed exceptionally
3400	>	* when source is.
3401	>	*/
3402	>	public void testCopy2() {
3403	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3404	>	CompletableFuture<Integer> g = f.copy();
3405	>	checkIncomplete(f);
3406	>	checkIncomplete(g);
3407	>	CFException ex = new CFException();
3408	>	f.completeExceptionally(ex);
3409	>	checkCompletedExceptionally(f, ex);
3410	>	checkCompletedWithWrappedException(g, ex);
3411	>	}
3412	>
3413	>	/**
3414	>	* minimalCompletionStage returns a CompletableFuture that is
3415	>	* completed normally, with the same value, when source is.
3416	>	*/
3417	>	public void testMinimalCompletionStage() {
3418	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3419	>	CompletionStage<Integer> g = f.minimalCompletionStage();
3420	>	AtomicInteger x = new AtomicInteger(0);
3421	>	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3422	>	checkIncomplete(f);
3423	>	g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3424	>	f.complete(1);
3425	>	checkCompletedNormally(f, 1);
3426	>	assertEquals(x.get(), 1);
3427	>	assertNull(r.get());
3428	>	}
3429	>
3430	>	/**
3431	>	* minimalCompletionStage returns a CompletableFuture that is
3432	>	* completed exceptionally when source is.
3433	>	*/
3434	>	public void testMinimalCompletionStage2() {
3435	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3436	>	CompletionStage<Integer> g = f.minimalCompletionStage();
3437	>	AtomicInteger x = new AtomicInteger(0);
3438	>	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3439	>	g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3440	>	checkIncomplete(f);
3441	>	CFException ex = new CFException();
3442	>	f.completeExceptionally(ex);
3443	>	checkCompletedExceptionally(f, ex);
3444	>	assertEquals(x.get(), 0);
3445	>	assertEquals(r.get().getCause(), ex);
3446	>	}
3447	>
3448	>	/**
3449	>	* failedStage returns a CompletionStage completed
3450	>	* exceptionally with the given Exception
3451	>	*/
3452	>	public void testFailedStage() {
3453	>	CFException ex = new CFException();
3454	>	CompletionStage<Integer> f = CompletableFuture.failedStage(ex);
3455	>	AtomicInteger x = new AtomicInteger(0);
3456	>	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3457	>	f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3458	>	assertEquals(x.get(), 0);
3459	>	assertEquals(r.get(), ex);
3460	>	}
3461	>
3462	>	/**
3463	>	* completeAsync completes with value of given supplier
3464	>	*/
3465	>	public void testCompleteAsync() {
3466		for (Integer v1 : new Integer[] { 1, null })
3467		{
3468	<	final AtomicInteger a = new AtomicInteger(0);
3469	<	final CFException ex = new CFException();
3470	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
3471	<	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());
3468	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3469	>	f.completeAsync(() -> v1);
3470	>	f.join();
3471	>	checkCompletedNormally(f, v1);
3472		}}
3473
3474		/**
3475	<	* whenComplete action executes on cancelled source, propagating
2806	<	* CancellationException.
3475	>	* completeAsync completes exceptionally if given supplier throws
3476		*/
3477	<	public void testWhenComplete_sourceCancelled() {
3478	<	for (ExecutionMode m : ExecutionMode.values())
3479	<	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3480	<	for (boolean createIncomplete : new boolean[] { true, false })
3477	>	public void testCompleteAsync2() {
3478	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3479	>	CFException ex = new CFException();
3480	>	f.completeAsync(() -> {if (true) throw ex; return 1;});
3481	>	try {
3482	>	f.join();
3483	>	shouldThrow();
3484	>	} catch (CompletionException success) {}
3485	>	checkCompletedWithWrappedException(f, ex);
3486	>	}
3487	>
3488	>	/**
3489	>	* completeAsync with given executor completes with value of given supplier
3490	>	*/
3491	>	public void testCompleteAsync3() {
3492	>	for (Integer v1 : new Integer[] { 1, null })
3493		{
3494	<	final AtomicInteger a = new AtomicInteger(0);
3495	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
3496	<	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
3497	<	final CompletableFuture<Integer> g = m.whenComplete
3498	<	(f,
3499	<	(Integer x, Throwable t) -> {
3500	<	threadAssertNull(x);
2820	<	threadAssertTrue(t instanceof CancellationException);
2821	<	a.getAndIncrement();
2822	<	});
2823	<	if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
3494	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3495	>	ThreadExecutor executor = new ThreadExecutor();
3496	>	f.completeAsync(() -> v1, executor);
3497	>	assertSame(v1, f.join());
3498	>	checkCompletedNormally(f, v1);
3499	>	assertEquals(1, executor.count.get());
3500	>	}}
3501
3502	<	//try { g.join(); } catch (Throwable t) { throw new Error(t); }
3503	<	checkCompletedWithWrappedCancellationException(g);
3504	<	checkCancelled(f);
3505	<	assertEquals(1, a.get());
3502	>	/**
3503	>	* completeAsync with given executor completes exceptionally if
3504	>	* given supplier throws
3505	>	*/
3506	>	public void testCompleteAsync4() {
3507	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3508	>	CFException ex = new CFException();
3509	>	ThreadExecutor executor = new ThreadExecutor();
3510	>	f.completeAsync(() -> {if (true) throw ex; return 1;}, executor);
3511	>	try {
3512	>	f.join();
3513	>	shouldThrow();
3514	>	} catch (CompletionException success) {}
3515	>	checkCompletedWithWrappedException(f, ex);
3516	>	assertEquals(1, executor.count.get());
3517	>	}
3518	>
3519	>	/**
3520	>	* orTimeout completes with TimeoutException if not complete
3521	>	*/
3522	>	public void testOrTimeout_timesOut() {
3523	>	long timeoutMillis = timeoutMillis();
3524	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3525	>	long startTime = System.nanoTime();
3526	>	f.orTimeout(timeoutMillis, MILLISECONDS);
3527	>	checkCompletedWithTimeoutException(f);
3528	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3529	>	}
3530	>
3531	>	/**
3532	>	* orTimeout completes normally if completed before timeout
3533	>	*/
3534	>	public void testOrTimeout_completed() {
3535	>	for (Integer v1 : new Integer[] { 1, null })
3536	>	{
3537	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3538	>	CompletableFuture<Integer> g = new CompletableFuture<>();
3539	>	long startTime = System.nanoTime();
3540	>	f.complete(v1);
3541	>	f.orTimeout(LONG_DELAY_MS, MILLISECONDS);
3542	>	g.orTimeout(LONG_DELAY_MS, MILLISECONDS);
3543	>	g.complete(v1);
3544	>	checkCompletedNormally(f, v1);
3545	>	checkCompletedNormally(g, v1);
3546	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3547		}}
3548
3549		/**
3550	<	* If a whenComplete action throws an exception when triggered by
2833	<	* a normal completion, it completes exceptionally
3550	>	* completeOnTimeout completes with given value if not complete
3551		*/
3552	<	public void testWhenComplete_actionFailed() {
3553	<	for (boolean createIncomplete : new boolean[] { true, false })
3554	<	for (ExecutionMode m : ExecutionMode.values())
3552	>	public void testCompleteOnTimeout_timesOut() {
3553	>	testInParallel(() -> testCompleteOnTimeout_timesOut(42),
3554	>	() -> testCompleteOnTimeout_timesOut(null));
3555	>	}
3556	>
3557	>	public void testCompleteOnTimeout_timesOut(Integer v) {
3558	>	long timeoutMillis = timeoutMillis();
3559	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3560	>	long startTime = System.nanoTime();
3561	>	f.completeOnTimeout(v, timeoutMillis, MILLISECONDS);
3562	>	assertSame(v, f.join());
3563	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3564	>	f.complete(99);         // should have no effect
3565	>	checkCompletedNormally(f, v);
3566	>	}
3567	>
3568	>	/**
3569	>	* completeOnTimeout has no effect if completed within timeout
3570	>	*/
3571	>	public void testCompleteOnTimeout_completed() {
3572		for (Integer v1 : new Integer[] { 1, null })
3573		{
3574	<	final AtomicInteger a = new AtomicInteger(0);
3575	<	final CFException ex = new CFException();
3576	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
3577	<	if (!createIncomplete) f.complete(v1);
3578	<	final CompletableFuture<Integer> g = m.whenComplete
3579	<	(f,
3580	<	(Integer x, Throwable t) -> {
2847	<	threadAssertSame(x, v1);
2848	<	threadAssertNull(t);
2849	<	a.getAndIncrement();
2850	<	throw ex;
2851	<	});
2852	<	if (createIncomplete) f.complete(v1);
3574	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3575	>	CompletableFuture<Integer> g = new CompletableFuture<>();
3576	>	long startTime = System.nanoTime();
3577	>	f.complete(v1);
3578	>	f.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS);
3579	>	g.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS);
3580	>	g.complete(v1);
3581		checkCompletedNormally(f, v1);
3582	<	checkCompletedWithWrappedCFException(g, ex);
3583	<	assertEquals(1, a.get());
3582	>	checkCompletedNormally(g, v1);
3583	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3584		}}
3585
3586		/**
3587	<	* 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.
3587	>	* delayedExecutor returns an executor that delays submission
3588		*/
3589	<	public void testWhenComplete_actionFailedSourceFailed() {
3590	<	for (boolean createIncomplete : new boolean[] { true, false })
3589	>	public void testDelayedExecutor() {
3590	>	testInParallel(() -> testDelayedExecutor(null, null),
3591	>	() -> testDelayedExecutor(null, 1),
3592	>	() -> testDelayedExecutor(new ThreadExecutor(), 1),
3593	>	() -> testDelayedExecutor(new ThreadExecutor(), 1));
3594	>	}
3595	>
3596	>	public void testDelayedExecutor(Executor executor, Integer v) throws Exception {
3597	>	long timeoutMillis = timeoutMillis();
3598	>	// Use an "unreasonably long" long timeout to catch lingering threads
3599	>	long longTimeoutMillis = 1000 * 60 * 60 * 24;
3600	>	final Executor delayer, longDelayer;
3601	>	if (executor == null) {
3602	>	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS);
3603	>	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS);
3604	>	} else {
3605	>	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS, executor);
3606	>	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS, executor);
3607	>	}
3608	>	long startTime = System.nanoTime();
3609	>	CompletableFuture<Integer> f =
3610	>	CompletableFuture.supplyAsync(() -> v, delayer);
3611	>	CompletableFuture<Integer> g =
3612	>	CompletableFuture.supplyAsync(() -> v, longDelayer);
3613	>
3614	>	assertNull(g.getNow(null));
3615	>
3616	>	assertSame(v, f.get(LONG_DELAY_MS, MILLISECONDS));
3617	>	long millisElapsed = millisElapsedSince(startTime);
3618	>	assertTrue(millisElapsed >= timeoutMillis);
3619	>	assertTrue(millisElapsed < LONG_DELAY_MS / 2);
3620	>
3621	>	checkCompletedNormally(f, v);
3622	>
3623	>	checkIncomplete(g);
3624	>	assertTrue(g.cancel(true));
3625	>	}
3626	>
3627	>	//--- tests of implementation details; not part of official tck ---
3628	>
3629	>	Object resultOf(CompletableFuture<?> f) {
3630	>	try {
3631	>	java.lang.reflect.Field resultField
3632	>	= CompletableFuture.class.getDeclaredField("result");
3633	>	resultField.setAccessible(true);
3634	>	return resultField.get(f);
3635	>	} catch (Throwable t) { throw new AssertionError(t); }
3636	>	}
3637	>
3638	>	public void testExceptionPropagationReusesResultObject() {
3639	>	if (!testImplementationDetails) return;
3640		for (ExecutionMode m : ExecutionMode.values())
2866	–	for (Integer v1 : new Integer[] { 1, null })
3641		{
3642	<	final AtomicInteger a = new AtomicInteger(0);
3643	<	final CFException ex1 = new CFException();
3644	<	final CFException ex2 = new CFException();
2871	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
3642	>	final CFException ex = new CFException();
3643	>	final CompletableFuture<Integer> v42 = CompletableFuture.completedFuture(42);
3644	>	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3645
3646	<	if (!createIncomplete) f.completeExceptionally(ex1);
3647	<	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);
3646	>	List<Function<CompletableFuture<Integer>, CompletableFuture<?>>> funs
3647	>	= new ArrayList<>();
3648
3649	<	checkCompletedWithWrappedCFException(f, ex1);
3650	<	checkCompletedWithWrappedCFException(g, ex1);
3651	<	assertEquals(1, a.get());
3649	>	funs.add((y) -> m.thenRun(y, new Noop(m)));
3650	>	funs.add((y) -> m.thenAccept(y, new NoopConsumer(m)));
3651	>	funs.add((y) -> m.thenApply(y, new IncFunction(m)));
3652	>
3653	>	funs.add((y) -> m.runAfterEither(y, incomplete, new Noop(m)));
3654	>	funs.add((y) -> m.acceptEither(y, incomplete, new NoopConsumer(m)));
3655	>	funs.add((y) -> m.applyToEither(y, incomplete, new IncFunction(m)));
3656	>
3657	>	funs.add((y) -> m.runAfterBoth(y, v42, new Noop(m)));
3658	>	funs.add((y) -> m.thenAcceptBoth(y, v42, new SubtractAction(m)));
3659	>	funs.add((y) -> m.thenCombine(y, v42, new SubtractFunction(m)));
3660	>
3661	>	funs.add((y) -> m.whenComplete(y, (Integer r, Throwable t) -> {}));
3662	>
3663	>	funs.add((y) -> m.thenCompose(y, new CompletableFutureInc(m)));
3664	>
3665	>	funs.add((y) -> CompletableFuture.allOf(new CompletableFuture<?>[] {y, v42}));
3666	>	funs.add((y) -> CompletableFuture.anyOf(new CompletableFuture<?>[] {y, incomplete}));
3667	>
3668	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3669	>	fun : funs) {
3670	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3671	>	f.completeExceptionally(ex);
3672	>	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
3673	>	checkCompletedWithWrappedException(src, ex);
3674	>	CompletableFuture<?> dep = fun.apply(src);
3675	>	checkCompletedWithWrappedException(dep, ex);
3676	>	assertSame(resultOf(src), resultOf(dep));
3677	>	}
3678	>
3679	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3680	>	fun : funs) {
3681	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3682	>	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
3683	>	CompletableFuture<?> dep = fun.apply(src);
3684	>	f.completeExceptionally(ex);
3685	>	checkCompletedWithWrappedException(src, ex);
3686	>	checkCompletedWithWrappedException(dep, ex);
3687	>	assertSame(resultOf(src), resultOf(dep));
3688	>	}
3689	>
3690	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3691	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3692	>	fun : funs) {
3693	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3694	>	f.cancel(mayInterruptIfRunning);
3695	>	checkCancelled(f);
3696	>	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
3697	>	checkCompletedWithWrappedCancellationException(src);
3698	>	CompletableFuture<?> dep = fun.apply(src);
3699	>	checkCompletedWithWrappedCancellationException(dep);
3700	>	assertSame(resultOf(src), resultOf(dep));
3701	>	}
3702	>
3703	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3704	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3705	>	fun : funs) {
3706	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3707	>	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
3708	>	CompletableFuture<?> dep = fun.apply(src);
3709	>	f.cancel(mayInterruptIfRunning);
3710	>	checkCancelled(f);
3711	>	checkCompletedWithWrappedCancellationException(src);
3712	>	checkCompletedWithWrappedCancellationException(dep);
3713	>	assertSame(resultOf(src), resultOf(dep));
3714	>	}
3715		}}
3716
3717	+	/**
3718	+	* Minimal completion stages throw UOE for all non-CompletionStage methods
3719	+	*/
3720	+	public void testMinimalCompletionStage_minimality() {
3721	+	if (!testImplementationDetails) return;
3722	+	Function<Method, String> toSignature =
3723	+	(method) -> method.getName() + Arrays.toString(method.getParameterTypes());
3724	+	Predicate<Method> isNotStatic =
3725	+	(method) -> (method.getModifiers() & Modifier.STATIC) == 0;
3726	+	List<Method> minimalMethods =
3727	+	Stream.of(Object.class, CompletionStage.class)
3728	+	.flatMap((klazz) -> Stream.of(klazz.getMethods()))
3729	+	.filter(isNotStatic)
3730	+	.collect(Collectors.toList());
3731	+	// Methods from CompletableFuture permitted NOT to throw UOE
3732	+	String[] signatureWhitelist = {
3733	+	"newIncompleteFuture[]",
3734	+	"defaultExecutor[]",
3735	+	"minimalCompletionStage[]",
3736	+	"copy[]",
3737	+	};
3738	+	Set<String> permittedMethodSignatures =
3739	+	Stream.concat(minimalMethods.stream().map(toSignature),
3740	+	Stream.of(signatureWhitelist))
3741	+	.collect(Collectors.toSet());
3742	+	List<Method> allMethods = Stream.of(CompletableFuture.class.getMethods())
3743	+	.filter(isNotStatic)
3744	+	.filter((method) -> !permittedMethodSignatures.contains(toSignature.apply(method)))
3745	+	.collect(Collectors.toList());
3746	+
3747	+	CompletionStage<Integer> minimalStage =
3748	+	new CompletableFuture<Integer>().minimalCompletionStage();
3749	+
3750	+	List<Method> bugs = new ArrayList<>();
3751	+	for (Method method : allMethods) {
3752	+	Class<?>[] parameterTypes = method.getParameterTypes();
3753	+	Object[] args = new Object[parameterTypes.length];
3754	+	// Manufacture boxed primitives for primitive params
3755	+	for (int i = 0; i < args.length; i++) {
3756	+	Class<?> type = parameterTypes[i];
3757	+	if (parameterTypes[i] == boolean.class)
3758	+	args[i] = false;
3759	+	else if (parameterTypes[i] == int.class)
3760	+	args[i] = 0;
3761	+	else if (parameterTypes[i] == long.class)
3762	+	args[i] = 0L;
3763	+	}
3764	+	try {
3765	+	method.invoke(minimalStage, args);
3766	+	bugs.add(method);
3767	+	}
3768	+	catch (java.lang.reflect.InvocationTargetException expected) {
3769	+	if (! (expected.getCause() instanceof UnsupportedOperationException)) {
3770	+	bugs.add(method);
3771	+	// expected.getCause().printStackTrace();
3772	+	}
3773	+	}
3774	+	catch (ReflectiveOperationException bad) { throw new Error(bad); }
3775	+	}
3776	+	if (!bugs.isEmpty())
3777	+	throw new Error("Methods did not throw UOE: " + bugs.toString());
3778	+	}
3779	+
3780	+	static class Monad {
3781	+	static class ZeroException extends RuntimeException {
3782	+	public ZeroException() { super("monadic zero"); }
3783	+	}
3784	+	// "return", "unit"
3785	+	static <T> CompletableFuture<T> unit(T value) {
3786	+	return completedFuture(value);
3787	+	}
3788	+	// monadic zero ?
3789	+	static <T> CompletableFuture<T> zero() {
3790	+	return failedFuture(new ZeroException());
3791	+	}
3792	+	// >=>
3793	+	static <T,U,V> Function<T, CompletableFuture<V>> compose
3794	+	(Function<T, CompletableFuture<U>> f,
3795	+	Function<U, CompletableFuture<V>> g) {
3796	+	return (x) -> f.apply(x).thenCompose(g);
3797	+	}
3798	+
3799	+	static void assertZero(CompletableFuture<?> f) {
3800	+	try {
3801	+	f.getNow(null);
3802	+	throw new AssertionFailedError("should throw");
3803	+	} catch (CompletionException success) {
3804	+	assertTrue(success.getCause() instanceof ZeroException);
3805	+	}
3806	+	}
3807	+
3808	+	static <T> void assertFutureEquals(CompletableFuture<T> f,
3809	+	CompletableFuture<T> g) {
3810	+	T fval = null, gval = null;
3811	+	Throwable fex = null, gex = null;
3812	+
3813	+	try { fval = f.get(); }
3814	+	catch (ExecutionException ex) { fex = ex.getCause(); }
3815	+	catch (Throwable ex) { fex = ex; }
3816	+
3817	+	try { gval = g.get(); }
3818	+	catch (ExecutionException ex) { gex = ex.getCause(); }
3819	+	catch (Throwable ex) { gex = ex; }
3820	+
3821	+	if (fex != null || gex != null)
3822	+	assertSame(fex.getClass(), gex.getClass());
3823	+	else
3824	+	assertEquals(fval, gval);
3825	+	}
3826	+
3827	+	static class PlusFuture<T> extends CompletableFuture<T> {
3828	+	AtomicReference<Throwable> firstFailure = new AtomicReference<>(null);
3829	+	}
3830	+
3831	+	/** Implements "monadic plus". */
3832	+	static <T> CompletableFuture<T> plus(CompletableFuture<? extends T> f,
3833	+	CompletableFuture<? extends T> g) {
3834	+	PlusFuture<T> plus = new PlusFuture<T>();
3835	+	BiConsumer<T, Throwable> action = (T result, Throwable ex) -> {
3836	+	try {
3837	+	if (ex == null) {
3838	+	if (plus.complete(result))
3839	+	if (plus.firstFailure.get() != null)
3840	+	plus.firstFailure.set(null);
3841	+	}
3842	+	else if (plus.firstFailure.compareAndSet(null, ex)) {
3843	+	if (plus.isDone())
3844	+	plus.firstFailure.set(null);
3845	+	}
3846	+	else {
3847	+	// first failure has precedence
3848	+	Throwable first = plus.firstFailure.getAndSet(null);
3849	+
3850	+	// may fail with "Self-suppression not permitted"
3851	+	try { first.addSuppressed(ex); }
3852	+	catch (Exception ignored) {}
3853	+
3854	+	plus.completeExceptionally(first);
3855	+	}
3856	+	} catch (Throwable unexpected) {
3857	+	plus.completeExceptionally(unexpected);
3858	+	}
3859	+	};
3860	+	f.whenComplete(action);
3861	+	g.whenComplete(action);
3862	+	return plus;
3863	+	}
3864	+	}
3865	+
3866	+	/**
3867	+	* CompletableFuture is an additive monad - sort of.
3868	+	* https://en.wikipedia.org/wiki/Monad_(functional_programming)#Additive_monads
3869	+	*/
3870	+	public void testAdditiveMonad() throws Throwable {
3871	+	Function<Long, CompletableFuture<Long>> unit = Monad::unit;
3872	+	CompletableFuture<Long> zero = Monad.zero();
3873	+
3874	+	// Some mutually non-commutative functions
3875	+	Function<Long, CompletableFuture<Long>> triple
3876	+	= (x) -> Monad.unit(3 * x);
3877	+	Function<Long, CompletableFuture<Long>> inc
3878	+	= (x) -> Monad.unit(x + 1);
3879	+
3880	+	// unit is a right identity: m >>= unit === m
3881	+	Monad.assertFutureEquals(inc.apply(5L).thenCompose(unit),
3882	+	inc.apply(5L));
3883	+	// unit is a left identity: (unit x) >>= f === f x
3884	+	Monad.assertFutureEquals(unit.apply(5L).thenCompose(inc),
3885	+	inc.apply(5L));
3886	+
3887	+	// associativity: (m >>= f) >>= g === m >>= ( \x -> (f x >>= g) )
3888	+	Monad.assertFutureEquals(
3889	+	unit.apply(5L).thenCompose(inc).thenCompose(triple),
3890	+	unit.apply(5L).thenCompose((x) -> inc.apply(x).thenCompose(triple)));
3891	+
3892	+	// The case for CompletableFuture as an additive monad is weaker...
3893	+
3894	+	// zero is a monadic zero
3895	+	Monad.assertZero(zero);
3896	+
3897	+	// left zero: zero >>= f === zero
3898	+	Monad.assertZero(zero.thenCompose(inc));
3899	+	// right zero: f >>= (\x -> zero) === zero
3900	+	Monad.assertZero(inc.apply(5L).thenCompose((x) -> zero));
3901	+
3902	+	// f plus zero === f
3903	+	Monad.assertFutureEquals(Monad.unit(5L),
3904	+	Monad.plus(Monad.unit(5L), zero));
3905	+	// zero plus f === f
3906	+	Monad.assertFutureEquals(Monad.unit(5L),
3907	+	Monad.plus(zero, Monad.unit(5L)));
3908	+	// zero plus zero === zero
3909	+	Monad.assertZero(Monad.plus(zero, zero));
3910	+	{
3911	+	CompletableFuture<Long> f = Monad.plus(Monad.unit(5L),
3912	+	Monad.unit(8L));
3913	+	// non-determinism
3914	+	assertTrue(f.get() == 5L || f.get() == 8L);
3915	+	}
3916	+
3917	+	CompletableFuture<Long> godot = new CompletableFuture<>();
3918	+	// f plus godot === f (doesn't wait for godot)
3919	+	Monad.assertFutureEquals(Monad.unit(5L),
3920	+	Monad.plus(Monad.unit(5L), godot));
3921	+	// godot plus f === f (doesn't wait for godot)
3922	+	Monad.assertFutureEquals(Monad.unit(5L),
3923	+	Monad.plus(godot, Monad.unit(5L)));
3924	+	}
3925	+
3926	+	//     static <U> U join(CompletionStage<U> stage) {
3927	+	//         CompletableFuture<U> f = new CompletableFuture<>();
3928	+	//         stage.whenComplete((v, ex) -> {
3929	+	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
3930	+	//         });
3931	+	//         return f.join();
3932	+	//     }
3933	+
3934	+	//     static <U> boolean isDone(CompletionStage<U> stage) {
3935	+	//         CompletableFuture<U> f = new CompletableFuture<>();
3936	+	//         stage.whenComplete((v, ex) -> {
3937	+	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
3938	+	//         });
3939	+	//         return f.isDone();
3940	+	//     }
3941	+
3942	+	//     static <U> U join2(CompletionStage<U> stage) {
3943	+	//         return stage.toCompletableFuture().copy().join();
3944	+	//     }
3945	+
3946	+	//     static <U> boolean isDone2(CompletionStage<U> stage) {
3947	+	//         return stage.toCompletableFuture().copy().isDone();
3948	+	//     }
3949	+
3950		}

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