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Comparing jsr166/src/test/tck/CompletableFutureTest.java (file contents):
Revision 1.13 by jsr166, Sun Mar 31 18:17:18 2013 UTC vs.
Revision 1.95 by jsr166, Wed Jun 25 15:32:10 2014 UTC

# Line 16 | Line 16 | import java.util.concurrent.ExecutionExc
16   import java.util.concurrent.Future;
17   import java.util.concurrent.CompletableFuture;
18   import java.util.concurrent.CompletionException;
19 + import java.util.concurrent.CompletionStage;
20 + import java.util.concurrent.ForkJoinPool;
21 + import java.util.concurrent.ForkJoinTask;
22   import java.util.concurrent.TimeoutException;
23   import java.util.concurrent.atomic.AtomicInteger;
24   import static java.util.concurrent.TimeUnit.MILLISECONDS;
# Line 54 | Line 57 | public class CompletableFutureTest exten
57      }
58  
59      <T> void checkCompletedNormally(CompletableFuture<T> f, T value) {
60 +        checkTimedGet(f, value);
61 +
62          try {
63              assertEquals(value, f.join());
64          } catch (Throwable fail) { threadUnexpectedException(fail); }
# Line 63 | Line 68 | public class CompletableFutureTest exten
68          try {
69              assertEquals(value, f.get());
70          } catch (Throwable fail) { threadUnexpectedException(fail); }
66        try {
67            assertEquals(value, f.get(0L, SECONDS));
68        } catch (Throwable fail) { threadUnexpectedException(fail); }
71          assertTrue(f.isDone());
72          assertFalse(f.isCancelled());
73 +        assertFalse(f.isCompletedExceptionally());
74          assertTrue(f.toString().contains("[Completed normally]"));
75      }
76  
77      void checkCompletedWithWrappedCFException(CompletableFuture<?> f) {
78 +        long startTime = System.nanoTime();
79 +        long timeoutMillis = LONG_DELAY_MS;
80 +        try {
81 +            f.get(timeoutMillis, MILLISECONDS);
82 +            shouldThrow();
83 +        } catch (ExecutionException success) {
84 +            assertTrue(success.getCause() instanceof CFException);
85 +        } catch (Throwable fail) { threadUnexpectedException(fail); }
86 +        assertTrue(millisElapsedSince(startTime) < timeoutMillis/2);
87 +
88          try {
89              f.join();
90              shouldThrow();
# Line 90 | Line 103 | public class CompletableFutureTest exten
103          } catch (ExecutionException success) {
104              assertTrue(success.getCause() instanceof CFException);
105          } catch (Throwable fail) { threadUnexpectedException(fail); }
106 +        assertTrue(f.isDone());
107 +        assertFalse(f.isCancelled());
108 +        assertTrue(f.toString().contains("[Completed exceptionally]"));
109 +    }
110 +
111 +    <U> void checkCompletedExceptionallyWithRootCause(CompletableFuture<U> f,
112 +                                                      Throwable ex) {
113 +        long startTime = System.nanoTime();
114 +        long timeoutMillis = LONG_DELAY_MS;
115          try {
116 <            f.get(0L, SECONDS);
116 >            f.get(timeoutMillis, MILLISECONDS);
117              shouldThrow();
118          } catch (ExecutionException success) {
119 <            assertTrue(success.getCause() instanceof CFException);
119 >            assertSame(ex, success.getCause());
120 >        } catch (Throwable fail) { threadUnexpectedException(fail); }
121 >        assertTrue(millisElapsedSince(startTime) < timeoutMillis/2);
122 >
123 >        try {
124 >            f.join();
125 >            shouldThrow();
126 >        } catch (CompletionException success) {
127 >            assertSame(ex, success.getCause());
128 >        }
129 >        try {
130 >            f.getNow(null);
131 >            shouldThrow();
132 >        } catch (CompletionException success) {
133 >            assertSame(ex, success.getCause());
134 >        }
135 >        try {
136 >            f.get();
137 >            shouldThrow();
138 >        } catch (ExecutionException success) {
139 >            assertSame(ex, success.getCause());
140          } catch (Throwable fail) { threadUnexpectedException(fail); }
141 +
142          assertTrue(f.isDone());
143          assertFalse(f.isCancelled());
144 +        assertTrue(f.toString().contains("[Completed exceptionally]"));
145 +    }
146 +
147 +    <U> void checkCompletedWithWrappedException(CompletableFuture<U> f,
148 +                                                Throwable ex) {
149 +        checkCompletedExceptionallyWithRootCause(f, ex);
150 +        try {
151 +            CompletableFuture<Throwable> spy = f.handle
152 +                ((U u, Throwable t) -> t);
153 +            assertTrue(spy.join() instanceof CompletionException);
154 +            assertSame(ex, spy.join().getCause());
155 +        } catch (Throwable fail) { threadUnexpectedException(fail); }
156 +    }
157 +
158 +    <U> void checkCompletedExceptionally(CompletableFuture<U> f, Throwable ex) {
159 +        checkCompletedExceptionallyWithRootCause(f, ex);
160 +        try {
161 +            CompletableFuture<Throwable> spy = f.handle
162 +                ((U u, Throwable t) -> t);
163 +            assertSame(ex, spy.join());
164 +        } catch (Throwable fail) { threadUnexpectedException(fail); }
165      }
166  
167      void checkCancelled(CompletableFuture<?> f) {
168 +        long startTime = System.nanoTime();
169 +        long timeoutMillis = LONG_DELAY_MS;
170 +        try {
171 +            f.get(timeoutMillis, MILLISECONDS);
172 +            shouldThrow();
173 +        } catch (CancellationException success) {
174 +        } catch (Throwable fail) { threadUnexpectedException(fail); }
175 +        assertTrue(millisElapsedSince(startTime) < timeoutMillis/2);
176 +
177          try {
178              f.join();
179              shouldThrow();
# Line 114 | Line 187 | public class CompletableFutureTest exten
187              shouldThrow();
188          } catch (CancellationException success) {
189          } catch (Throwable fail) { threadUnexpectedException(fail); }
117        try {
118            f.get(0L, SECONDS);
119            shouldThrow();
120        } catch (CancellationException success) {
121        } catch (Throwable fail) { threadUnexpectedException(fail); }
190          assertTrue(f.isDone());
191 +        assertTrue(f.isCompletedExceptionally());
192          assertTrue(f.isCancelled());
193 +        assertTrue(f.toString().contains("[Completed exceptionally]"));
194      }
195  
196      void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) {
197 +        long startTime = System.nanoTime();
198 +        long timeoutMillis = LONG_DELAY_MS;
199 +        try {
200 +            f.get(timeoutMillis, MILLISECONDS);
201 +            shouldThrow();
202 +        } catch (ExecutionException success) {
203 +            assertTrue(success.getCause() instanceof CancellationException);
204 +        } catch (Throwable fail) { threadUnexpectedException(fail); }
205 +        assertTrue(millisElapsedSince(startTime) < timeoutMillis/2);
206 +
207          try {
208              f.join();
209              shouldThrow();
# Line 142 | Line 222 | public class CompletableFutureTest exten
222          } catch (ExecutionException success) {
223              assertTrue(success.getCause() instanceof CancellationException);
224          } catch (Throwable fail) { threadUnexpectedException(fail); }
145        try {
146            f.get(0L, SECONDS);
147            shouldThrow();
148        } catch (ExecutionException success) {
149            assertTrue(success.getCause() instanceof CancellationException);
150        } catch (Throwable fail) { threadUnexpectedException(fail); }
225          assertTrue(f.isDone());
226          assertFalse(f.isCancelled());
227 +        assertTrue(f.isCompletedExceptionally());
228 +        assertTrue(f.toString().contains("[Completed exceptionally]"));
229      }
230  
231      /**
# Line 157 | Line 233 | public class CompletableFutureTest exten
233       * by methods isDone, isCancelled, and getNow
234       */
235      public void testConstructor() {
236 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
236 >        CompletableFuture<Integer> f = new CompletableFuture<>();
237          checkIncomplete(f);
238      }
239  
# Line 166 | Line 242 | public class CompletableFutureTest exten
242       * isCancelled, join, get, and getNow
243       */
244      public void testComplete() {
245 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
245 >        for (Integer v1 : new Integer[] { 1, null })
246 >    {
247 >        CompletableFuture<Integer> f = new CompletableFuture<>();
248          checkIncomplete(f);
249 <        f.complete(one);
250 <        checkCompletedNormally(f, one);
251 <    }
249 >        assertTrue(f.complete(v1));
250 >        assertFalse(f.complete(v1));
251 >        checkCompletedNormally(f, v1);
252 >    }}
253  
254      /**
255       * completeExceptionally completes exceptionally, as indicated by
256       * methods isDone, isCancelled, join, get, and getNow
257       */
258      public void testCompleteExceptionally() {
259 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
259 >        CompletableFuture<Integer> f = new CompletableFuture<>();
260 >        CFException ex = new CFException();
261          checkIncomplete(f);
262 <        f.completeExceptionally(new CFException());
263 <        checkCompletedWithWrappedCFException(f);
262 >        f.completeExceptionally(ex);
263 >        checkCompletedExceptionally(f, ex);
264      }
265  
266      /**
# Line 188 | Line 268 | public class CompletableFutureTest exten
268       * methods isDone, isCancelled, join, get, and getNow
269       */
270      public void testCancel() {
271 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
271 >        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
272 >    {
273 >        CompletableFuture<Integer> f = new CompletableFuture<>();
274          checkIncomplete(f);
275          assertTrue(f.cancel(true));
276 +        assertTrue(f.cancel(true));
277          checkCancelled(f);
278 <    }
278 >    }}
279  
280      /**
281       * obtrudeValue forces completion with given value
282       */
283      public void testObtrudeValue() {
284 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
284 >        CompletableFuture<Integer> f = new CompletableFuture<>();
285          checkIncomplete(f);
286 <        f.complete(one);
286 >        assertTrue(f.complete(one));
287          checkCompletedNormally(f, one);
288          f.obtrudeValue(three);
289          checkCompletedNormally(f, three);
290          f.obtrudeValue(two);
291          checkCompletedNormally(f, two);
292 <        f = new CompletableFuture<Integer>();
292 >        f = new CompletableFuture<>();
293          f.obtrudeValue(three);
294          checkCompletedNormally(f, three);
295 <        f = new CompletableFuture<Integer>();
295 >        f.obtrudeValue(null);
296 >        checkCompletedNormally(f, null);
297 >        f = new CompletableFuture<>();
298          f.completeExceptionally(new CFException());
299          f.obtrudeValue(four);
300          checkCompletedNormally(f, four);
# Line 219 | Line 304 | public class CompletableFutureTest exten
304       * obtrudeException forces completion with given exception
305       */
306      public void testObtrudeException() {
307 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
308 <        checkIncomplete(f);
309 <        f.complete(one);
310 <        checkCompletedNormally(f, one);
311 <        f.obtrudeException(new CFException());
312 <        checkCompletedWithWrappedCFException(f);
313 <        f = new CompletableFuture<Integer>();
314 <        f.obtrudeException(new CFException());
315 <        checkCompletedWithWrappedCFException(f);
316 <        f = new CompletableFuture<Integer>();
317 <        f.completeExceptionally(new CFException());
318 <        f.obtrudeValue(four);
319 <        checkCompletedNormally(f, four);
320 <        f.obtrudeException(new CFException());
321 <        checkCompletedWithWrappedCFException(f);
322 <    }
307 >        for (Integer v1 : new Integer[] { 1, null })
308 >    {
309 >        CFException ex;
310 >        CompletableFuture<Integer> f;
311 >
312 >        f = new CompletableFuture<>();
313 >        assertTrue(f.complete(v1));
314 >        for (int i = 0; i < 2; i++) {
315 >            f.obtrudeException(ex = new CFException());
316 >            checkCompletedExceptionally(f, ex);
317 >        }
318 >
319 >        f = new CompletableFuture<>();
320 >        for (int i = 0; i < 2; i++) {
321 >            f.obtrudeException(ex = new CFException());
322 >            checkCompletedExceptionally(f, ex);
323 >        }
324 >
325 >        f = new CompletableFuture<>();
326 >        f.completeExceptionally(ex = new CFException());
327 >        f.obtrudeValue(v1);
328 >        checkCompletedNormally(f, v1);
329 >        f.obtrudeException(ex = new CFException());
330 >        checkCompletedExceptionally(f, ex);
331 >        f.completeExceptionally(new CFException());
332 >        checkCompletedExceptionally(f, ex);
333 >        assertFalse(f.complete(v1));
334 >        checkCompletedExceptionally(f, ex);
335 >    }}
336  
337      /**
338       * getNumberOfDependents returns number of dependent tasks
339       */
340      public void testGetNumberOfDependents() {
341 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
342 <        assertEquals(f.getNumberOfDependents(), 0);
343 <        CompletableFuture g = f.thenRun(new Noop());
344 <        assertEquals(f.getNumberOfDependents(), 1);
345 <        assertEquals(g.getNumberOfDependents(), 0);
346 <        CompletableFuture h = f.thenRun(new Noop());
347 <        assertEquals(f.getNumberOfDependents(), 2);
348 <        f.complete(1);
349 <        checkCompletedNormally(g, null);
350 <        assertEquals(f.getNumberOfDependents(), 0);
351 <        assertEquals(g.getNumberOfDependents(), 0);
352 <    }
353 <
341 >        for (ExecutionMode m : ExecutionMode.values())
342 >        for (Integer v1 : new Integer[] { 1, null })
343 >    {
344 >        CompletableFuture<Integer> f = new CompletableFuture<>();
345 >        assertEquals(0, f.getNumberOfDependents());
346 >        final CompletableFuture<Void> g = m.thenRun(f, new Noop(m));
347 >        assertEquals(1, f.getNumberOfDependents());
348 >        assertEquals(0, g.getNumberOfDependents());
349 >        final CompletableFuture<Void> h = m.thenRun(f, new Noop(m));
350 >        assertEquals(2, f.getNumberOfDependents());
351 >        assertEquals(0, h.getNumberOfDependents());
352 >        assertTrue(f.complete(v1));
353 >        checkCompletedNormally(g, null);
354 >        checkCompletedNormally(h, null);
355 >        assertEquals(0, f.getNumberOfDependents());
356 >        assertEquals(0, g.getNumberOfDependents());
357 >        assertEquals(0, h.getNumberOfDependents());
358 >    }}
359  
360      /**
361       * toString indicates current completion state
# Line 263 | Line 366 | public class CompletableFutureTest exten
366          f = new CompletableFuture<String>();
367          assertTrue(f.toString().contains("[Not completed]"));
368  
369 <        f.complete("foo");
369 >        assertTrue(f.complete("foo"));
370          assertTrue(f.toString().contains("[Completed normally]"));
371  
372          f = new CompletableFuture<String>();
373 <        f.completeExceptionally(new IndexOutOfBoundsException());
373 >        assertTrue(f.completeExceptionally(new IndexOutOfBoundsException()));
374          assertTrue(f.toString().contains("[Completed exceptionally]"));
375 +
376 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false }) {
377 +            f = new CompletableFuture<String>();
378 +            assertTrue(f.cancel(mayInterruptIfRunning));
379 +            assertTrue(f.toString().contains("[Completed exceptionally]"));
380 +        }
381      }
382  
383      /**
# Line 279 | Line 388 | public class CompletableFutureTest exten
388          checkCompletedNormally(f, "test");
389      }
390  
391 <    static final Supplier<Integer> supplyOne =
392 <        () -> Integer.valueOf(1);
393 <    static final Function<Integer, Integer> inc =
394 <        (Integer x) -> Integer.valueOf(x.intValue() + 1);
395 <    static final BiFunction<Integer, Integer, Integer> add =
396 <        (Integer x, Integer y) -> Integer.valueOf(x.intValue() + y.intValue());
397 <    static final class IncAction implements Consumer<Integer> {
398 <        int value;
399 <        public void accept(Integer x) { value = x.intValue() + 1; }
391 >    abstract class CheckedAction {
392 >        int invocationCount = 0;
393 >        final ExecutionMode m;
394 >        CheckedAction(ExecutionMode m) { this.m = m; }
395 >        void invoked() {
396 >            m.checkExecutionMode();
397 >            assertEquals(0, invocationCount++);
398 >        }
399 >        void assertNotInvoked() { assertEquals(0, invocationCount); }
400 >        void assertInvoked() { assertEquals(1, invocationCount); }
401 >    }
402 >
403 >    abstract class CheckedIntegerAction extends CheckedAction {
404 >        Integer value;
405 >        CheckedIntegerAction(ExecutionMode m) { super(m); }
406 >        void assertValue(Integer expected) {
407 >            assertInvoked();
408 >            assertEquals(expected, value);
409 >        }
410      }
411 <    static final class AddAction implements BiConsumer<Integer, Integer> {
412 <        int value;
411 >
412 >    class IntegerSupplier extends CheckedAction
413 >        implements Supplier<Integer>
414 >    {
415 >        final Integer value;
416 >        IntegerSupplier(ExecutionMode m, Integer value) {
417 >            super(m);
418 >            this.value = value;
419 >        }
420 >        public Integer get() {
421 >            invoked();
422 >            return value;
423 >        }
424 >    }
425 >
426 >    // A function that handles and produces null values as well.
427 >    static Integer inc(Integer x) {
428 >        return (x == null) ? null : x + 1;
429 >    }
430 >
431 >    class NoopConsumer extends CheckedIntegerAction
432 >        implements Consumer<Integer>
433 >    {
434 >        NoopConsumer(ExecutionMode m) { super(m); }
435 >        public void accept(Integer x) {
436 >            invoked();
437 >            value = x;
438 >        }
439 >    }
440 >
441 >    class IncFunction extends CheckedIntegerAction
442 >        implements Function<Integer,Integer>
443 >    {
444 >        IncFunction(ExecutionMode m) { super(m); }
445 >        public Integer apply(Integer x) {
446 >            invoked();
447 >            return value = inc(x);
448 >        }
449 >    }
450 >
451 >    // Choose non-commutative actions for better coverage
452 >    // A non-commutative function that handles and produces null values as well.
453 >    static Integer subtract(Integer x, Integer y) {
454 >        return (x == null && y == null) ? null :
455 >            ((x == null) ? 42 : x.intValue())
456 >            - ((y == null) ? 99 : y.intValue());
457 >    }
458 >
459 >    class SubtractAction extends CheckedIntegerAction
460 >        implements BiConsumer<Integer, Integer>
461 >    {
462 >        SubtractAction(ExecutionMode m) { super(m); }
463          public void accept(Integer x, Integer y) {
464 <            value = x.intValue() + y.intValue();
464 >            invoked();
465 >            value = subtract(x, y);
466          }
467      }
468 <    static final class Noop implements Runnable {
469 <        boolean ran;
470 <        public void run() { ran = true; }
468 >
469 >    class SubtractFunction extends CheckedIntegerAction
470 >        implements BiFunction<Integer, Integer, Integer>
471 >    {
472 >        SubtractFunction(ExecutionMode m) { super(m); }
473 >        public Integer apply(Integer x, Integer y) {
474 >            invoked();
475 >            return value = subtract(x, y);
476 >        }
477      }
478  
479 <    static final class FailingSupplier implements Supplier<Integer> {
480 <        boolean ran;
481 <        public Integer get() { ran = true; throw new CFException(); }
479 >    class Noop extends CheckedAction implements Runnable {
480 >        Noop(ExecutionMode m) { super(m); }
481 >        public void run() {
482 >            invoked();
483 >        }
484      }
485 <    static final class FailingConsumer implements Consumer<Integer> {
486 <        boolean ran;
487 <        public void accept(Integer x) { ran = true; throw new CFException(); }
485 >
486 >    class FailingSupplier extends CheckedAction
487 >        implements Supplier<Integer>
488 >    {
489 >        FailingSupplier(ExecutionMode m) { super(m); }
490 >        public Integer get() {
491 >            invoked();
492 >            throw new CFException();
493 >        }
494      }
495 <    static final class FailingBiConsumer implements BiConsumer<Integer, Integer> {
496 <        boolean ran;
497 <        public void accept(Integer x, Integer y) { ran = true; throw new CFException(); }
495 >
496 >    class FailingConsumer extends CheckedIntegerAction
497 >        implements Consumer<Integer>
498 >    {
499 >        FailingConsumer(ExecutionMode m) { super(m); }
500 >        public void accept(Integer x) {
501 >            invoked();
502 >            value = x;
503 >            throw new CFException();
504 >        }
505      }
506 <    static final class FailingFunction implements Function<Integer, Integer> {
507 <        boolean ran;
508 <        public Integer apply(Integer x) { ran = true; throw new CFException(); }
506 >
507 >    class FailingBiConsumer extends CheckedIntegerAction
508 >        implements BiConsumer<Integer, Integer>
509 >    {
510 >        FailingBiConsumer(ExecutionMode m) { super(m); }
511 >        public void accept(Integer x, Integer y) {
512 >            invoked();
513 >            value = subtract(x, y);
514 >            throw new CFException();
515 >        }
516      }
517 <    static final class FailingBiFunction implements BiFunction<Integer, Integer, Integer> {
518 <        boolean ran;
519 <        public Integer apply(Integer x, Integer y) { ran = true; throw new CFException(); }
517 >
518 >    class FailingFunction extends CheckedIntegerAction
519 >        implements Function<Integer, Integer>
520 >    {
521 >        FailingFunction(ExecutionMode m) { super(m); }
522 >        public Integer apply(Integer x) {
523 >            invoked();
524 >            value = x;
525 >            throw new CFException();
526 >        }
527      }
528 <    static final class FailingNoop implements Runnable {
529 <        boolean ran;
530 <        public void run() { ran = true; throw new CFException(); }
528 >
529 >    class FailingBiFunction extends CheckedIntegerAction
530 >        implements BiFunction<Integer, Integer, Integer>
531 >    {
532 >        FailingBiFunction(ExecutionMode m) { super(m); }
533 >        public Integer apply(Integer x, Integer y) {
534 >            invoked();
535 >            value = subtract(x, y);
536 >            throw new CFException();
537 >        }
538 >    }
539 >
540 >    class FailingRunnable extends CheckedAction implements Runnable {
541 >        FailingRunnable(ExecutionMode m) { super(m); }
542 >        public void run() {
543 >            invoked();
544 >            throw new CFException();
545 >        }
546      }
547  
548 <    static final class CompletableFutureInc implements Function<Integer, CompletableFuture<Integer>> {
548 >
549 >    class CompletableFutureInc extends CheckedIntegerAction
550 >        implements Function<Integer, CompletableFuture<Integer>>
551 >    {
552 >        CompletableFutureInc(ExecutionMode m) { super(m); }
553          public CompletableFuture<Integer> apply(Integer x) {
554 <            CompletableFuture<Integer> f = new CompletableFuture<Integer>();
555 <            f.complete(Integer.valueOf(x.intValue() + 1));
554 >            invoked();
555 >            value = x;
556 >            CompletableFuture<Integer> f = new CompletableFuture<>();
557 >            assertTrue(f.complete(inc(x)));
558              return f;
559          }
560      }
561  
562 <    static final class FailingCompletableFutureFunction implements Function<Integer, CompletableFuture<Integer>> {
563 <        boolean ran;
562 >    class FailingCompletableFutureFunction extends CheckedIntegerAction
563 >        implements Function<Integer, CompletableFuture<Integer>>
564 >    {
565 >        FailingCompletableFutureFunction(ExecutionMode m) { super(m); }
566          public CompletableFuture<Integer> apply(Integer x) {
567 <            ran = true; throw new CFException();
567 >            invoked();
568 >            value = x;
569 >            throw new CFException();
570          }
571      }
572  
573      // Used for explicit executor tests
574      static final class ThreadExecutor implements Executor {
575 +        final AtomicInteger count = new AtomicInteger(0);
576 +        static final ThreadGroup tg = new ThreadGroup("ThreadExecutor");
577 +        static boolean startedCurrentThread() {
578 +            return Thread.currentThread().getThreadGroup() == tg;
579 +        }
580 +
581          public void execute(Runnable r) {
582 <            new Thread(r).start();
582 >            count.getAndIncrement();
583 >            new Thread(tg, r).start();
584          }
585      }
586  
587 <    static final class ExceptionToInteger implements Function<Throwable, Integer> {
588 <        public Integer apply(Throwable x) { return Integer.valueOf(3); }
589 <    }
587 >    /**
588 >     * Permits the testing of parallel code for the 3 different
589 >     * execution modes without copy/pasting all the test methods.
590 >     */
591 >    enum ExecutionMode {
592 >        SYNC {
593 >            public void checkExecutionMode() {
594 >                assertFalse(ThreadExecutor.startedCurrentThread());
595 >                assertNull(ForkJoinTask.getPool());
596 >            }
597 >            public CompletableFuture<Void> runAsync(Runnable a) {
598 >                throw new UnsupportedOperationException();
599 >            }
600 >            public <U> CompletableFuture<U> supplyAsync(Supplier<U> a) {
601 >                throw new UnsupportedOperationException();
602 >            }
603 >            public <T> CompletableFuture<Void> thenRun
604 >                (CompletableFuture<T> f, Runnable a) {
605 >                return f.thenRun(a);
606 >            }
607 >            public <T> CompletableFuture<Void> thenAccept
608 >                (CompletableFuture<T> f, Consumer<? super T> a) {
609 >                return f.thenAccept(a);
610 >            }
611 >            public <T,U> CompletableFuture<U> thenApply
612 >                (CompletableFuture<T> f, Function<? super T,U> a) {
613 >                return f.thenApply(a);
614 >            }
615 >            public <T,U> CompletableFuture<U> thenCompose
616 >                (CompletableFuture<T> f,
617 >                 Function<? super T,? extends CompletionStage<U>> a) {
618 >                return f.thenCompose(a);
619 >            }
620 >            public <T,U> CompletableFuture<U> handle
621 >                (CompletableFuture<T> f,
622 >                 BiFunction<? super T,Throwable,? extends U> a) {
623 >                return f.handle(a);
624 >            }
625 >            public <T> CompletableFuture<T> whenComplete
626 >                (CompletableFuture<T> f,
627 >                 BiConsumer<? super T,? super Throwable> a) {
628 >                return f.whenComplete(a);
629 >            }
630 >            public <T,U> CompletableFuture<Void> runAfterBoth
631 >                (CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) {
632 >                return f.runAfterBoth(g, a);
633 >            }
634 >            public <T,U> CompletableFuture<Void> thenAcceptBoth
635 >                (CompletableFuture<T> f,
636 >                 CompletionStage<? extends U> g,
637 >                 BiConsumer<? super T,? super U> a) {
638 >                return f.thenAcceptBoth(g, a);
639 >            }
640 >            public <T,U,V> CompletableFuture<V> thenCombine
641 >                (CompletableFuture<T> f,
642 >                 CompletionStage<? extends U> g,
643 >                 BiFunction<? super T,? super U,? extends V> a) {
644 >                return f.thenCombine(g, a);
645 >            }
646 >            public <T> CompletableFuture<Void> runAfterEither
647 >                (CompletableFuture<T> f,
648 >                 CompletionStage<?> g,
649 >                 java.lang.Runnable a) {
650 >                return f.runAfterEither(g, a);
651 >            }
652 >            public <T> CompletableFuture<Void> acceptEither
653 >                (CompletableFuture<T> f,
654 >                 CompletionStage<? extends T> g,
655 >                 Consumer<? super T> a) {
656 >                return f.acceptEither(g, a);
657 >            }
658 >            public <T,U> CompletableFuture<U> applyToEither
659 >                (CompletableFuture<T> f,
660 >                 CompletionStage<? extends T> g,
661 >                 Function<? super T,U> a) {
662 >                return f.applyToEither(g, a);
663 >            }
664 >        },
665  
666 <    static final class IntegerHandler implements BiFunction<Integer, Throwable, Integer> {
667 <        public Integer apply(Integer x, Throwable t) {
668 <            return (t == null) ? two : three;
669 <        }
670 <    }
666 >        ASYNC {
667 >            public void checkExecutionMode() {
668 >                assertSame(ForkJoinPool.commonPool(),
669 >                           ForkJoinTask.getPool());
670 >            }
671 >            public CompletableFuture<Void> runAsync(Runnable a) {
672 >                return CompletableFuture.runAsync(a);
673 >            }
674 >            public <U> CompletableFuture<U> supplyAsync(Supplier<U> a) {
675 >                return CompletableFuture.supplyAsync(a);
676 >            }
677 >            public <T> CompletableFuture<Void> thenRun
678 >                (CompletableFuture<T> f, Runnable a) {
679 >                return f.thenRunAsync(a);
680 >            }
681 >            public <T> CompletableFuture<Void> thenAccept
682 >                (CompletableFuture<T> f, Consumer<? super T> a) {
683 >                return f.thenAcceptAsync(a);
684 >            }
685 >            public <T,U> CompletableFuture<U> thenApply
686 >                (CompletableFuture<T> f, Function<? super T,U> a) {
687 >                return f.thenApplyAsync(a);
688 >            }
689 >            public <T,U> CompletableFuture<U> thenCompose
690 >                (CompletableFuture<T> f,
691 >                 Function<? super T,? extends CompletionStage<U>> a) {
692 >                return f.thenComposeAsync(a);
693 >            }
694 >            public <T,U> CompletableFuture<U> handle
695 >                (CompletableFuture<T> f,
696 >                 BiFunction<? super T,Throwable,? extends U> a) {
697 >                return f.handleAsync(a);
698 >            }
699 >            public <T> CompletableFuture<T> whenComplete
700 >                (CompletableFuture<T> f,
701 >                 BiConsumer<? super T,? super Throwable> a) {
702 >                return f.whenCompleteAsync(a);
703 >            }
704 >            public <T,U> CompletableFuture<Void> runAfterBoth
705 >                (CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) {
706 >                return f.runAfterBothAsync(g, a);
707 >            }
708 >            public <T,U> CompletableFuture<Void> thenAcceptBoth
709 >                (CompletableFuture<T> f,
710 >                 CompletionStage<? extends U> g,
711 >                 BiConsumer<? super T,? super U> a) {
712 >                return f.thenAcceptBothAsync(g, a);
713 >            }
714 >            public <T,U,V> CompletableFuture<V> thenCombine
715 >                (CompletableFuture<T> f,
716 >                 CompletionStage<? extends U> g,
717 >                 BiFunction<? super T,? super U,? extends V> a) {
718 >                return f.thenCombineAsync(g, a);
719 >            }
720 >            public <T> CompletableFuture<Void> runAfterEither
721 >                (CompletableFuture<T> f,
722 >                 CompletionStage<?> g,
723 >                 java.lang.Runnable a) {
724 >                return f.runAfterEitherAsync(g, a);
725 >            }
726 >            public <T> CompletableFuture<Void> acceptEither
727 >                (CompletableFuture<T> f,
728 >                 CompletionStage<? extends T> g,
729 >                 Consumer<? super T> a) {
730 >                return f.acceptEitherAsync(g, a);
731 >            }
732 >            public <T,U> CompletableFuture<U> applyToEither
733 >                (CompletableFuture<T> f,
734 >                 CompletionStage<? extends T> g,
735 >                 Function<? super T,U> a) {
736 >                return f.applyToEitherAsync(g, a);
737 >            }
738 >        },
739 >
740 >        EXECUTOR {
741 >            public void checkExecutionMode() {
742 >                assertTrue(ThreadExecutor.startedCurrentThread());
743 >            }
744 >            public CompletableFuture<Void> runAsync(Runnable a) {
745 >                return CompletableFuture.runAsync(a, new ThreadExecutor());
746 >            }
747 >            public <U> CompletableFuture<U> supplyAsync(Supplier<U> a) {
748 >                return CompletableFuture.supplyAsync(a, new ThreadExecutor());
749 >            }
750 >            public <T> CompletableFuture<Void> thenRun
751 >                (CompletableFuture<T> f, Runnable a) {
752 >                return f.thenRunAsync(a, new ThreadExecutor());
753 >            }
754 >            public <T> CompletableFuture<Void> thenAccept
755 >                (CompletableFuture<T> f, Consumer<? super T> a) {
756 >                return f.thenAcceptAsync(a, new ThreadExecutor());
757 >            }
758 >            public <T,U> CompletableFuture<U> thenApply
759 >                (CompletableFuture<T> f, Function<? super T,U> a) {
760 >                return f.thenApplyAsync(a, new ThreadExecutor());
761 >            }
762 >            public <T,U> CompletableFuture<U> thenCompose
763 >                (CompletableFuture<T> f,
764 >                 Function<? super T,? extends CompletionStage<U>> a) {
765 >                return f.thenComposeAsync(a, new ThreadExecutor());
766 >            }
767 >            public <T,U> CompletableFuture<U> handle
768 >                (CompletableFuture<T> f,
769 >                 BiFunction<? super T,Throwable,? extends U> a) {
770 >                return f.handleAsync(a, new ThreadExecutor());
771 >            }
772 >            public <T> CompletableFuture<T> whenComplete
773 >                (CompletableFuture<T> f,
774 >                 BiConsumer<? super T,? super Throwable> a) {
775 >                return f.whenCompleteAsync(a, new ThreadExecutor());
776 >            }
777 >            public <T,U> CompletableFuture<Void> runAfterBoth
778 >                (CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) {
779 >                return f.runAfterBothAsync(g, a, new ThreadExecutor());
780 >            }
781 >            public <T,U> CompletableFuture<Void> thenAcceptBoth
782 >                (CompletableFuture<T> f,
783 >                 CompletionStage<? extends U> g,
784 >                 BiConsumer<? super T,? super U> a) {
785 >                return f.thenAcceptBothAsync(g, a, new ThreadExecutor());
786 >            }
787 >            public <T,U,V> CompletableFuture<V> thenCombine
788 >                (CompletableFuture<T> f,
789 >                 CompletionStage<? extends U> g,
790 >                 BiFunction<? super T,? super U,? extends V> a) {
791 >                return f.thenCombineAsync(g, a, new ThreadExecutor());
792 >            }
793 >            public <T> CompletableFuture<Void> runAfterEither
794 >                (CompletableFuture<T> f,
795 >                 CompletionStage<?> g,
796 >                 java.lang.Runnable a) {
797 >                return f.runAfterEitherAsync(g, a, new ThreadExecutor());
798 >            }
799 >            public <T> CompletableFuture<Void> acceptEither
800 >                (CompletableFuture<T> f,
801 >                 CompletionStage<? extends T> g,
802 >                 Consumer<? super T> a) {
803 >                return f.acceptEitherAsync(g, a, new ThreadExecutor());
804 >            }
805 >            public <T,U> CompletableFuture<U> applyToEither
806 >                (CompletableFuture<T> f,
807 >                 CompletionStage<? extends T> g,
808 >                 Function<? super T,U> a) {
809 >                return f.applyToEitherAsync(g, a, new ThreadExecutor());
810 >            }
811 >        };
812  
813 +        public abstract void checkExecutionMode();
814 +        public abstract CompletableFuture<Void> runAsync(Runnable a);
815 +        public abstract <U> CompletableFuture<U> supplyAsync(Supplier<U> a);
816 +        public abstract <T> CompletableFuture<Void> thenRun
817 +            (CompletableFuture<T> f, Runnable a);
818 +        public abstract <T> CompletableFuture<Void> thenAccept
819 +            (CompletableFuture<T> f, Consumer<? super T> a);
820 +        public abstract <T,U> CompletableFuture<U> thenApply
821 +            (CompletableFuture<T> f, Function<? super T,U> a);
822 +        public abstract <T,U> CompletableFuture<U> thenCompose
823 +            (CompletableFuture<T> f,
824 +             Function<? super T,? extends CompletionStage<U>> a);
825 +        public abstract <T,U> CompletableFuture<U> handle
826 +            (CompletableFuture<T> f,
827 +             BiFunction<? super T,Throwable,? extends U> a);
828 +        public abstract <T> CompletableFuture<T> whenComplete
829 +            (CompletableFuture<T> f,
830 +             BiConsumer<? super T,? super Throwable> a);
831 +        public abstract <T,U> CompletableFuture<Void> runAfterBoth
832 +            (CompletableFuture<T> f, CompletableFuture<U> g, Runnable a);
833 +        public abstract <T,U> CompletableFuture<Void> thenAcceptBoth
834 +            (CompletableFuture<T> f,
835 +             CompletionStage<? extends U> g,
836 +             BiConsumer<? super T,? super U> a);
837 +        public abstract <T,U,V> CompletableFuture<V> thenCombine
838 +            (CompletableFuture<T> f,
839 +             CompletionStage<? extends U> g,
840 +             BiFunction<? super T,? super U,? extends V> a);
841 +        public abstract <T> CompletableFuture<Void> runAfterEither
842 +            (CompletableFuture<T> f,
843 +             CompletionStage<?> g,
844 +             java.lang.Runnable a);
845 +        public abstract <T> CompletableFuture<Void> acceptEither
846 +            (CompletableFuture<T> f,
847 +             CompletionStage<? extends T> g,
848 +             Consumer<? super T> a);
849 +        public abstract <T,U> CompletableFuture<U> applyToEither
850 +            (CompletableFuture<T> f,
851 +             CompletionStage<? extends T> g,
852 +             Function<? super T,U> a);
853 +    }
854 +
855 +    /**
856 +     * exceptionally action is not invoked when source completes
857 +     * normally, and source result is propagated
858 +     */
859 +    public void testExceptionally_normalCompletion() {
860 +        for (boolean createIncomplete : new boolean[] { true, false })
861 +        for (Integer v1 : new Integer[] { 1, null })
862 +    {
863 +        final AtomicInteger a = new AtomicInteger(0);
864 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
865 +        if (!createIncomplete) assertTrue(f.complete(v1));
866 +        final CompletableFuture<Integer> g = f.exceptionally
867 +            ((Throwable t) -> {
868 +                // Should not be called
869 +                a.getAndIncrement();
870 +                throw new AssertionError();
871 +            });
872 +        if (createIncomplete) assertTrue(f.complete(v1));
873 +
874 +        checkCompletedNormally(g, v1);
875 +        checkCompletedNormally(f, v1);
876 +        assertEquals(0, a.get());
877 +    }}
878  
879      /**
880       * exceptionally action completes with function value on source
881 <     * exception;  otherwise with source value
881 >     * exception
882       */
883 <    public void testExceptionally() {
884 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
885 <        ExceptionToInteger r = new ExceptionToInteger();
886 <        CompletableFuture<Integer> g = f.exceptionally(r);
887 <        f.completeExceptionally(new CFException());
888 <        checkCompletedNormally(g, three);
883 >    public void testExceptionally_exceptionalCompletion() {
884 >        for (boolean createIncomplete : new boolean[] { true, false })
885 >        for (Integer v1 : new Integer[] { 1, null })
886 >    {
887 >        final AtomicInteger a = new AtomicInteger(0);
888 >        final CFException ex = new CFException();
889 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
890 >        if (!createIncomplete) f.completeExceptionally(ex);
891 >        final CompletableFuture<Integer> g = f.exceptionally
892 >            ((Throwable t) -> {
893 >                ExecutionMode.SYNC.checkExecutionMode();
894 >                threadAssertSame(t, ex);
895 >                a.getAndIncrement();
896 >                return v1;
897 >            });
898 >        if (createIncomplete) f.completeExceptionally(ex);
899 >
900 >        checkCompletedNormally(g, v1);
901 >        assertEquals(1, a.get());
902 >    }}
903 >
904 >    public void testExceptionally_exceptionalCompletionActionFailed() {
905 >        for (boolean createIncomplete : new boolean[] { true, false })
906 >        for (Integer v1 : new Integer[] { 1, null })
907 >    {
908 >        final AtomicInteger a = new AtomicInteger(0);
909 >        final CFException ex1 = new CFException();
910 >        final CFException ex2 = new CFException();
911 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
912 >        if (!createIncomplete) f.completeExceptionally(ex1);
913 >        final CompletableFuture<Integer> g = f.exceptionally
914 >            ((Throwable t) -> {
915 >                ExecutionMode.SYNC.checkExecutionMode();
916 >                threadAssertSame(t, ex1);
917 >                a.getAndIncrement();
918 >                throw ex2;
919 >            });
920 >        if (createIncomplete) f.completeExceptionally(ex1);
921 >
922 >        checkCompletedWithWrappedException(g, ex2);
923 >        assertEquals(1, a.get());
924 >    }}
925 >
926 >    /**
927 >     * whenComplete action executes on normal completion, propagating
928 >     * source result.
929 >     */
930 >    public void testWhenComplete_normalCompletion1() {
931 >        for (ExecutionMode m : ExecutionMode.values())
932 >        for (boolean createIncomplete : new boolean[] { true, false })
933 >        for (Integer v1 : new Integer[] { 1, null })
934 >    {
935 >        final AtomicInteger a = new AtomicInteger(0);
936 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
937 >        if (!createIncomplete) assertTrue(f.complete(v1));
938 >        final CompletableFuture<Integer> g = m.whenComplete
939 >            (f,
940 >             (Integer x, Throwable t) -> {
941 >                m.checkExecutionMode();
942 >                threadAssertSame(x, v1);
943 >                threadAssertNull(t);
944 >                a.getAndIncrement();
945 >            });
946 >        if (createIncomplete) assertTrue(f.complete(v1));
947 >
948 >        checkCompletedNormally(g, v1);
949 >        checkCompletedNormally(f, v1);
950 >        assertEquals(1, a.get());
951 >    }}
952 >
953 >    /**
954 >     * whenComplete action executes on exceptional completion, propagating
955 >     * source result.
956 >     */
957 >    public void testWhenComplete_exceptionalCompletion() {
958 >        for (ExecutionMode m : ExecutionMode.values())
959 >        for (boolean createIncomplete : new boolean[] { true, false })
960 >        for (Integer v1 : new Integer[] { 1, null })
961 >    {
962 >        final AtomicInteger a = new AtomicInteger(0);
963 >        final CFException ex = new CFException();
964 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
965 >        if (!createIncomplete) f.completeExceptionally(ex);
966 >        final CompletableFuture<Integer> g = m.whenComplete
967 >            (f,
968 >             (Integer x, Throwable t) -> {
969 >                m.checkExecutionMode();
970 >                threadAssertNull(x);
971 >                threadAssertSame(t, ex);
972 >                a.getAndIncrement();
973 >            });
974 >        if (createIncomplete) f.completeExceptionally(ex);
975 >
976 >        checkCompletedWithWrappedException(g, ex);
977 >        checkCompletedExceptionally(f, ex);
978 >        assertEquals(1, a.get());
979 >    }}
980 >
981 >    /**
982 >     * whenComplete action executes on cancelled source, propagating
983 >     * CancellationException.
984 >     */
985 >    public void testWhenComplete_sourceCancelled() {
986 >        for (ExecutionMode m : ExecutionMode.values())
987 >        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
988 >        for (boolean createIncomplete : new boolean[] { true, false })
989 >    {
990 >        final AtomicInteger a = new AtomicInteger(0);
991 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
992 >        if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
993 >        final CompletableFuture<Integer> g = m.whenComplete
994 >            (f,
995 >             (Integer x, Throwable t) -> {
996 >                m.checkExecutionMode();
997 >                threadAssertNull(x);
998 >                threadAssertTrue(t instanceof CancellationException);
999 >                a.getAndIncrement();
1000 >            });
1001 >        if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1002  
1003 <        f = new CompletableFuture<Integer>();
1004 <        r = new ExceptionToInteger();
1005 <        g = f.exceptionally(r);
1006 <        f.complete(one);
376 <        checkCompletedNormally(g, one);
377 <    }
1003 >        checkCompletedWithWrappedCancellationException(g);
1004 >        checkCancelled(f);
1005 >        assertEquals(1, a.get());
1006 >    }}
1007  
1008      /**
1009 <     * handle action completes normally with function value on either
1010 <     * normal or exceptional completion of source
1009 >     * If a whenComplete action throws an exception when triggered by
1010 >     * a normal completion, it completes exceptionally
1011       */
1012 <    public void testHandle() {
1013 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1014 <        IntegerHandler r = new IntegerHandler();
1015 <        CompletableFuture<Integer> g = f.handle(r);
1016 <        f.completeExceptionally(new CFException());
1017 <        checkCompletedNormally(g, three);
1012 >    public void testWhenComplete_actionFailed() {
1013 >        for (boolean createIncomplete : new boolean[] { true, false })
1014 >        for (ExecutionMode m : ExecutionMode.values())
1015 >        for (Integer v1 : new Integer[] { 1, null })
1016 >    {
1017 >        final AtomicInteger a = new AtomicInteger(0);
1018 >        final CFException ex = new CFException();
1019 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1020 >        if (!createIncomplete) assertTrue(f.complete(v1));
1021 >        final CompletableFuture<Integer> g = m.whenComplete
1022 >            (f,
1023 >             (Integer x, Throwable t) -> {
1024 >                m.checkExecutionMode();
1025 >                threadAssertSame(x, v1);
1026 >                threadAssertNull(t);
1027 >                a.getAndIncrement();
1028 >                throw ex;
1029 >            });
1030 >        if (createIncomplete) assertTrue(f.complete(v1));
1031 >
1032 >        checkCompletedWithWrappedException(g, ex);
1033 >        checkCompletedNormally(f, v1);
1034 >        assertEquals(1, a.get());
1035 >    }}
1036 >
1037 >    /**
1038 >     * If a whenComplete action throws an exception when triggered by
1039 >     * a source completion that also throws an exception, the source
1040 >     * exception takes precedence.
1041 >     */
1042 >    public void testWhenComplete_actionFailedSourceFailed() {
1043 >        for (boolean createIncomplete : new boolean[] { true, false })
1044 >        for (ExecutionMode m : ExecutionMode.values())
1045 >        for (Integer v1 : new Integer[] { 1, null })
1046 >    {
1047 >        final AtomicInteger a = new AtomicInteger(0);
1048 >        final CFException ex1 = new CFException();
1049 >        final CFException ex2 = new CFException();
1050 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1051 >
1052 >        if (!createIncomplete) f.completeExceptionally(ex1);
1053 >        final CompletableFuture<Integer> g = m.whenComplete
1054 >            (f,
1055 >             (Integer x, Throwable t) -> {
1056 >                m.checkExecutionMode();
1057 >                threadAssertSame(t, ex1);
1058 >                threadAssertNull(x);
1059 >                a.getAndIncrement();
1060 >                throw ex2;
1061 >            });
1062 >        if (createIncomplete) f.completeExceptionally(ex1);
1063 >
1064 >        checkCompletedWithWrappedException(g, ex1);
1065 >        checkCompletedExceptionally(f, ex1);
1066 >        assertEquals(1, a.get());
1067 >    }}
1068 >
1069 >    /**
1070 >     * handle action completes normally with function value on normal
1071 >     * completion of source
1072 >     */
1073 >    public void testHandle_normalCompletion() {
1074 >        for (ExecutionMode m : ExecutionMode.values())
1075 >        for (boolean createIncomplete : new boolean[] { true, false })
1076 >        for (Integer v1 : new Integer[] { 1, null })
1077 >    {
1078 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1079 >        final AtomicInteger a = new AtomicInteger(0);
1080 >        if (!createIncomplete) assertTrue(f.complete(v1));
1081 >        final CompletableFuture<Integer> g = m.handle
1082 >            (f,
1083 >             (Integer x, Throwable t) -> {
1084 >                m.checkExecutionMode();
1085 >                threadAssertSame(x, v1);
1086 >                threadAssertNull(t);
1087 >                a.getAndIncrement();
1088 >                return inc(v1);
1089 >            });
1090 >        if (createIncomplete) assertTrue(f.complete(v1));
1091 >
1092 >        checkCompletedNormally(g, inc(v1));
1093 >        checkCompletedNormally(f, v1);
1094 >        assertEquals(1, a.get());
1095 >    }}
1096  
1097 <        f = new CompletableFuture<Integer>();
1098 <        r = new IntegerHandler();
1099 <        g = f.handle(r);
1100 <        f.complete(one);
1101 <        checkCompletedNormally(g, two);
1102 <    }
1097 >    /**
1098 >     * handle action completes normally with function value on
1099 >     * exceptional completion of source
1100 >     */
1101 >    public void testHandle_exceptionalCompletion() {
1102 >        for (ExecutionMode m : ExecutionMode.values())
1103 >        for (boolean createIncomplete : new boolean[] { true, false })
1104 >        for (Integer v1 : new Integer[] { 1, null })
1105 >    {
1106 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1107 >        final AtomicInteger a = new AtomicInteger(0);
1108 >        final CFException ex = new CFException();
1109 >        if (!createIncomplete) f.completeExceptionally(ex);
1110 >        final CompletableFuture<Integer> g = m.handle
1111 >            (f,
1112 >             (Integer x, Throwable t) -> {
1113 >                m.checkExecutionMode();
1114 >                threadAssertNull(x);
1115 >                threadAssertSame(t, ex);
1116 >                a.getAndIncrement();
1117 >                return v1;
1118 >            });
1119 >        if (createIncomplete) f.completeExceptionally(ex);
1120 >
1121 >        checkCompletedNormally(g, v1);
1122 >        checkCompletedExceptionally(f, ex);
1123 >        assertEquals(1, a.get());
1124 >    }}
1125 >
1126 >    /**
1127 >     * handle action completes normally with function value on
1128 >     * cancelled source
1129 >     */
1130 >    public void testHandle_sourceCancelled() {
1131 >        for (ExecutionMode m : ExecutionMode.values())
1132 >        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1133 >        for (boolean createIncomplete : new boolean[] { true, false })
1134 >        for (Integer v1 : new Integer[] { 1, null })
1135 >    {
1136 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1137 >        final AtomicInteger a = new AtomicInteger(0);
1138 >        if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1139 >        final CompletableFuture<Integer> g = m.handle
1140 >            (f,
1141 >             (Integer x, Throwable t) -> {
1142 >                m.checkExecutionMode();
1143 >                threadAssertNull(x);
1144 >                threadAssertTrue(t instanceof CancellationException);
1145 >                a.getAndIncrement();
1146 >                return v1;
1147 >            });
1148 >        if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1149 >
1150 >        checkCompletedNormally(g, v1);
1151 >        checkCancelled(f);
1152 >        assertEquals(1, a.get());
1153 >    }}
1154  
1155      /**
1156 <     * runAsync completes after running Runnable
1156 >     * handle result completes exceptionally if action does
1157       */
1158 <    public void testRunAsync() {
1159 <        Noop r = new Noop();
1160 <        CompletableFuture<Void> f = CompletableFuture.runAsync(r);
1161 <        assertNull(f.join());
1162 <        assertTrue(r.ran);
1163 <    }
1158 >    public void testHandle_sourceFailedActionFailed() {
1159 >        for (ExecutionMode m : ExecutionMode.values())
1160 >        for (boolean createIncomplete : new boolean[] { true, false })
1161 >    {
1162 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1163 >        final AtomicInteger a = new AtomicInteger(0);
1164 >        final CFException ex1 = new CFException();
1165 >        final CFException ex2 = new CFException();
1166 >        if (!createIncomplete) f.completeExceptionally(ex1);
1167 >        final CompletableFuture<Integer> g = m.handle
1168 >            (f,
1169 >             (Integer x, Throwable t) -> {
1170 >                m.checkExecutionMode();
1171 >                threadAssertNull(x);
1172 >                threadAssertSame(ex1, t);
1173 >                a.getAndIncrement();
1174 >                throw ex2;
1175 >            });
1176 >        if (createIncomplete) f.completeExceptionally(ex1);
1177 >
1178 >        checkCompletedWithWrappedException(g, ex2);
1179 >        checkCompletedExceptionally(f, ex1);
1180 >        assertEquals(1, a.get());
1181 >    }}
1182 >
1183 >    public void testHandle_sourceCompletedNormallyActionFailed() {
1184 >        for (ExecutionMode m : ExecutionMode.values())
1185 >        for (boolean createIncomplete : new boolean[] { true, false })
1186 >        for (Integer v1 : new Integer[] { 1, null })
1187 >    {
1188 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1189 >        final AtomicInteger a = new AtomicInteger(0);
1190 >        final CFException ex = new CFException();
1191 >        if (!createIncomplete) assertTrue(f.complete(v1));
1192 >        final CompletableFuture<Integer> g = m.handle
1193 >            (f,
1194 >             (Integer x, Throwable t) -> {
1195 >                m.checkExecutionMode();
1196 >                threadAssertSame(x, v1);
1197 >                threadAssertNull(t);
1198 >                a.getAndIncrement();
1199 >                throw ex;
1200 >            });
1201 >        if (createIncomplete) assertTrue(f.complete(v1));
1202 >
1203 >        checkCompletedWithWrappedException(g, ex);
1204 >        checkCompletedNormally(f, v1);
1205 >        assertEquals(1, a.get());
1206 >    }}
1207  
1208      /**
1209 <     * runAsync with executor completes after running Runnable
1209 >     * runAsync completes after running Runnable
1210       */
1211 <    public void testRunAsync2() {
1212 <        Noop r = new Noop();
1213 <        CompletableFuture<Void> f = CompletableFuture.runAsync(r, new ThreadExecutor());
1211 >    public void testRunAsync_normalCompletion() {
1212 >        ExecutionMode[] executionModes = {
1213 >            ExecutionMode.ASYNC,
1214 >            ExecutionMode.EXECUTOR,
1215 >        };
1216 >        for (ExecutionMode m : executionModes)
1217 >    {
1218 >        final Noop r = new Noop(m);
1219 >        final CompletableFuture<Void> f = m.runAsync(r);
1220          assertNull(f.join());
1221 <        assertTrue(r.ran);
1222 <    }
1221 >        checkCompletedNormally(f, null);
1222 >        r.assertInvoked();
1223 >    }}
1224  
1225      /**
1226       * failing runAsync completes exceptionally after running Runnable
1227       */
1228 <    public void testRunAsync3() {
1229 <        FailingNoop r = new FailingNoop();
1230 <        CompletableFuture<Void> f = CompletableFuture.runAsync(r);
1228 >    public void testRunAsync_exceptionalCompletion() {
1229 >        ExecutionMode[] executionModes = {
1230 >            ExecutionMode.ASYNC,
1231 >            ExecutionMode.EXECUTOR,
1232 >        };
1233 >        for (ExecutionMode m : executionModes)
1234 >    {
1235 >        final FailingRunnable r = new FailingRunnable(m);
1236 >        final CompletableFuture<Void> f = m.runAsync(r);
1237          checkCompletedWithWrappedCFException(f);
1238 <        assertTrue(r.ran);
1239 <    }
1238 >        r.assertInvoked();
1239 >    }}
1240  
1241      /**
1242       * supplyAsync completes with result of supplier
1243       */
1244 <    public void testSupplyAsync() {
1245 <        CompletableFuture<Integer> f = CompletableFuture.supplyAsync(supplyOne);
1246 <        assertEquals(f.join(), one);
1247 <    }
1248 <
1249 <    /**
1250 <     * supplyAsync with executor completes with result of supplier
1251 <     */
1252 <    public void testSupplyAsync2() {
1253 <        CompletableFuture<Integer> f = CompletableFuture.supplyAsync(supplyOne, new ThreadExecutor());
1254 <        assertEquals(f.join(), one);
1255 <    }
1244 >    public void testSupplyAsync_normalCompletion() {
1245 >        ExecutionMode[] executionModes = {
1246 >            ExecutionMode.ASYNC,
1247 >            ExecutionMode.EXECUTOR,
1248 >        };
1249 >        for (ExecutionMode m : executionModes)
1250 >        for (Integer v1 : new Integer[] { 1, null })
1251 >    {
1252 >        final IntegerSupplier r = new IntegerSupplier(m, v1);
1253 >        final CompletableFuture<Integer> f = m.supplyAsync(r);
1254 >        assertSame(v1, f.join());
1255 >        checkCompletedNormally(f, v1);
1256 >        r.assertInvoked();
1257 >    }}
1258  
1259      /**
1260       * Failing supplyAsync completes exceptionally
1261       */
1262 <    public void testSupplyAsync3() {
1263 <        FailingSupplier r = new FailingSupplier();
1264 <        CompletableFuture<Integer> f = CompletableFuture.supplyAsync(r);
1262 >    public void testSupplyAsync_exceptionalCompletion() {
1263 >        ExecutionMode[] executionModes = {
1264 >            ExecutionMode.ASYNC,
1265 >            ExecutionMode.EXECUTOR,
1266 >        };
1267 >        for (ExecutionMode m : executionModes)
1268 >    {
1269 >        FailingSupplier r = new FailingSupplier(m);
1270 >        CompletableFuture<Integer> f = m.supplyAsync(r);
1271          checkCompletedWithWrappedCFException(f);
1272 <        assertTrue(r.ran);
1273 <    }
1272 >        r.assertInvoked();
1273 >    }}
1274  
1275      // seq completion methods
1276  
1277      /**
1278       * thenRun result completes normally after normal completion of source
1279       */
1280 <    public void testThenRun() {
1281 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1282 <        Noop r = new Noop();
1283 <        CompletableFuture<Void> g = f.thenRun(r);
1284 <        f.complete(null);
1285 <        checkCompletedNormally(g, null);
1286 <        // reordered version
1287 <        f = new CompletableFuture<Integer>();
1288 <        f.complete(null);
1289 <        r = new Noop();
1290 <        g = f.thenRun(r);
1291 <        checkCompletedNormally(g, null);
1292 <    }
1280 >    public void testThenRun_normalCompletion() {
1281 >        for (ExecutionMode m : ExecutionMode.values())
1282 >        for (Integer v1 : new Integer[] { 1, null })
1283 >    {
1284 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1285 >        final Noop[] rs = new Noop[6];
1286 >        for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1287 >
1288 >        final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1289 >        final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1290 >        final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1291 >        checkIncomplete(h0);
1292 >        checkIncomplete(h1);
1293 >        checkIncomplete(h2);
1294 >        assertTrue(f.complete(v1));
1295 >        final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1296 >        final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1297 >        final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1298 >
1299 >        checkCompletedNormally(h0, null);
1300 >        checkCompletedNormally(h1, null);
1301 >        checkCompletedNormally(h2, null);
1302 >        checkCompletedNormally(h3, null);
1303 >        checkCompletedNormally(h4, null);
1304 >        checkCompletedNormally(h5, null);
1305 >        checkCompletedNormally(f, v1);
1306 >        for (Noop r : rs) r.assertInvoked();
1307 >    }}
1308  
1309      /**
1310       * thenRun result completes exceptionally after exceptional
1311       * completion of source
1312       */
1313 <    public void testThenRun2() {
1314 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1315 <        Noop r = new Noop();
1316 <        CompletableFuture<Void> g = f.thenRun(r);
1317 <        f.completeExceptionally(new CFException());
1318 <        checkCompletedWithWrappedCFException(g);
1319 <    }
1313 >    public void testThenRun_exceptionalCompletion() {
1314 >        for (ExecutionMode m : ExecutionMode.values())
1315 >    {
1316 >        final CFException ex = new CFException();
1317 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1318 >        final Noop[] rs = new Noop[6];
1319 >        for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1320 >
1321 >        final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1322 >        final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1323 >        final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1324 >        checkIncomplete(h0);
1325 >        checkIncomplete(h1);
1326 >        checkIncomplete(h2);
1327 >        assertTrue(f.completeExceptionally(ex));
1328 >        final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1329 >        final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1330 >        final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1331 >
1332 >        checkCompletedWithWrappedException(h0, ex);
1333 >        checkCompletedWithWrappedException(h1, ex);
1334 >        checkCompletedWithWrappedException(h2, ex);
1335 >        checkCompletedWithWrappedException(h3, ex);
1336 >        checkCompletedWithWrappedException(h4, ex);
1337 >        checkCompletedWithWrappedException(h5, ex);
1338 >        checkCompletedExceptionally(f, ex);
1339 >        for (Noop r : rs) r.assertNotInvoked();
1340 >    }}
1341  
1342      /**
1343 <     * thenRun result completes exceptionally if action does
1343 >     * thenRun result completes exceptionally if source cancelled
1344       */
1345 <    public void testThenRun3() {
1346 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1347 <        FailingNoop r = new FailingNoop();
1348 <        CompletableFuture<Void> g = f.thenRun(r);
1349 <        f.complete(null);
1350 <        checkCompletedWithWrappedCFException(g);
1351 <    }
1345 >    public void testThenRun_sourceCancelled() {
1346 >        for (ExecutionMode m : ExecutionMode.values())
1347 >        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1348 >    {
1349 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1350 >        final Noop[] rs = new Noop[6];
1351 >        for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1352 >
1353 >        final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1354 >        final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1355 >        final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1356 >        checkIncomplete(h0);
1357 >        checkIncomplete(h1);
1358 >        checkIncomplete(h2);
1359 >        assertTrue(f.cancel(mayInterruptIfRunning));
1360 >        final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1361 >        final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1362 >        final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1363 >
1364 >        checkCompletedWithWrappedCancellationException(h0);
1365 >        checkCompletedWithWrappedCancellationException(h1);
1366 >        checkCompletedWithWrappedCancellationException(h2);
1367 >        checkCompletedWithWrappedCancellationException(h3);
1368 >        checkCompletedWithWrappedCancellationException(h4);
1369 >        checkCompletedWithWrappedCancellationException(h5);
1370 >        checkCancelled(f);
1371 >        for (Noop r : rs) r.assertNotInvoked();
1372 >    }}
1373  
1374      /**
1375 <     * thenRun result completes exceptionally if source cancelled
1375 >     * thenRun result completes exceptionally if action does
1376       */
1377 <    public void testThenRun4() {
1378 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1379 <        Noop r = new Noop();
1380 <        CompletableFuture<Void> g = f.thenRun(r);
1381 <        assertTrue(f.cancel(true));
1382 <        checkCompletedWithWrappedCancellationException(g);
1383 <    }
1377 >    public void testThenRun_actionFailed() {
1378 >        for (ExecutionMode m : ExecutionMode.values())
1379 >        for (Integer v1 : new Integer[] { 1, null })
1380 >    {
1381 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1382 >        final FailingRunnable[] rs = new FailingRunnable[6];
1383 >        for (int i = 0; i < rs.length; i++) rs[i] = new FailingRunnable(m);
1384 >
1385 >        final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1386 >        final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1387 >        final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1388 >        assertTrue(f.complete(v1));
1389 >        final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1390 >        final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1391 >        final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1392 >
1393 >        checkCompletedWithWrappedCFException(h0);
1394 >        checkCompletedWithWrappedCFException(h1);
1395 >        checkCompletedWithWrappedCFException(h2);
1396 >        checkCompletedWithWrappedCFException(h3);
1397 >        checkCompletedWithWrappedCFException(h4);
1398 >        checkCompletedWithWrappedCFException(h5);
1399 >        checkCompletedNormally(f, v1);
1400 >    }}
1401  
1402      /**
1403       * thenApply result completes normally after normal completion of source
1404       */
1405 <    public void testThenApply() {
1406 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1407 <        CompletableFuture<Integer> g = f.thenApply(inc);
1408 <        f.complete(one);
1409 <        checkCompletedNormally(g, two);
1410 <    }
1405 >    public void testThenApply_normalCompletion() {
1406 >        for (ExecutionMode m : ExecutionMode.values())
1407 >        for (Integer v1 : new Integer[] { 1, null })
1408 >    {
1409 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1410 >        final IncFunction[] rs = new IncFunction[4];
1411 >        for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1412 >
1413 >        final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1414 >        final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1415 >        checkIncomplete(h0);
1416 >        checkIncomplete(h1);
1417 >        assertTrue(f.complete(v1));
1418 >        final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1419 >        final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1420 >
1421 >        checkCompletedNormally(h0, inc(v1));
1422 >        checkCompletedNormally(h1, inc(v1));
1423 >        checkCompletedNormally(h2, inc(v1));
1424 >        checkCompletedNormally(h3, inc(v1));
1425 >        checkCompletedNormally(f, v1);
1426 >        for (IncFunction r : rs) r.assertValue(inc(v1));
1427 >    }}
1428  
1429      /**
1430       * thenApply result completes exceptionally after exceptional
1431       * completion of source
1432       */
1433 <    public void testThenApply2() {
1434 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1435 <        CompletableFuture<Integer> g = f.thenApply(inc);
1436 <        f.completeExceptionally(new CFException());
1437 <        checkCompletedWithWrappedCFException(g);
1438 <    }
1433 >    public void testThenApply_exceptionalCompletion() {
1434 >        for (ExecutionMode m : ExecutionMode.values())
1435 >    {
1436 >        final CFException ex = new CFException();
1437 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1438 >        final IncFunction[] rs = new IncFunction[4];
1439 >        for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1440 >
1441 >        final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1442 >        final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1443 >        assertTrue(f.completeExceptionally(ex));
1444 >        final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1445 >        final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1446 >
1447 >        checkCompletedWithWrappedException(h0, ex);
1448 >        checkCompletedWithWrappedException(h1, ex);
1449 >        checkCompletedWithWrappedException(h2, ex);
1450 >        checkCompletedWithWrappedException(h3, ex);
1451 >        checkCompletedExceptionally(f, ex);
1452 >        for (IncFunction r : rs) r.assertNotInvoked();
1453 >    }}
1454  
1455      /**
1456 <     * thenApply result completes exceptionally if action does
1456 >     * thenApply result completes exceptionally if source cancelled
1457       */
1458 <    public void testThenApply3() {
1459 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1460 <        CompletableFuture<Integer> g = f.thenApply(new FailingFunction());
1461 <        f.complete(one);
1462 <        checkCompletedWithWrappedCFException(g);
1463 <    }
1458 >    public void testThenApply_sourceCancelled() {
1459 >        for (ExecutionMode m : ExecutionMode.values())
1460 >        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1461 >    {
1462 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1463 >        final IncFunction[] rs = new IncFunction[4];
1464 >        for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1465 >
1466 >        final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1467 >        final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1468 >        assertTrue(f.cancel(mayInterruptIfRunning));
1469 >        final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1470 >        final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1471 >
1472 >        checkCompletedWithWrappedCancellationException(h0);
1473 >        checkCompletedWithWrappedCancellationException(h1);
1474 >        checkCompletedWithWrappedCancellationException(h2);
1475 >        checkCompletedWithWrappedCancellationException(h3);
1476 >        checkCancelled(f);
1477 >        for (IncFunction r : rs) r.assertNotInvoked();
1478 >    }}
1479  
1480      /**
1481 <     * thenApply result completes exceptionally if source cancelled
1481 >     * thenApply result completes exceptionally if action does
1482       */
1483 <    public void testThenApply4() {
1484 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1485 <        CompletableFuture<Integer> g = f.thenApply(inc);
1486 <        assertTrue(f.cancel(true));
1487 <        checkCompletedWithWrappedCancellationException(g);
1488 <    }
1483 >    public void testThenApply_actionFailed() {
1484 >        for (ExecutionMode m : ExecutionMode.values())
1485 >        for (Integer v1 : new Integer[] { 1, null })
1486 >    {
1487 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1488 >        final FailingFunction[] rs = new FailingFunction[4];
1489 >        for (int i = 0; i < rs.length; i++) rs[i] = new FailingFunction(m);
1490 >
1491 >        final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1492 >        final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1493 >        assertTrue(f.complete(v1));
1494 >        final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1495 >        final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1496 >
1497 >        checkCompletedWithWrappedCFException(h0);
1498 >        checkCompletedWithWrappedCFException(h1);
1499 >        checkCompletedWithWrappedCFException(h2);
1500 >        checkCompletedWithWrappedCFException(h3);
1501 >        checkCompletedNormally(f, v1);
1502 >    }}
1503  
1504      /**
1505       * thenAccept result completes normally after normal completion of source
1506       */
1507 <    public void testThenAccept() {
1508 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1509 <        IncAction r = new IncAction();
1510 <        CompletableFuture<Void> g = f.thenAccept(r);
1511 <        f.complete(one);
1512 <        checkCompletedNormally(g, null);
1513 <        assertEquals(r.value, 2);
1514 <    }
1507 >    public void testThenAccept_normalCompletion() {
1508 >        for (ExecutionMode m : ExecutionMode.values())
1509 >        for (Integer v1 : new Integer[] { 1, null })
1510 >    {
1511 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1512 >        final NoopConsumer[] rs = new NoopConsumer[4];
1513 >        for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1514 >
1515 >        final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1516 >        final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1517 >        checkIncomplete(h0);
1518 >        checkIncomplete(h1);
1519 >        assertTrue(f.complete(v1));
1520 >        final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1521 >        final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1522 >
1523 >        checkCompletedNormally(h0, null);
1524 >        checkCompletedNormally(h1, null);
1525 >        checkCompletedNormally(h2, null);
1526 >        checkCompletedNormally(h3, null);
1527 >        checkCompletedNormally(f, v1);
1528 >        for (NoopConsumer r : rs) r.assertValue(v1);
1529 >    }}
1530  
1531      /**
1532       * thenAccept result completes exceptionally after exceptional
1533       * completion of source
1534       */
1535 <    public void testThenAccept2() {
1536 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1537 <        IncAction r = new IncAction();
1538 <        CompletableFuture<Void> g = f.thenAccept(r);
1539 <        f.completeExceptionally(new CFException());
1540 <        checkCompletedWithWrappedCFException(g);
1541 <    }
1542 <
1543 <    /**
1544 <     * thenAccept result completes exceptionally if action does
1545 <     */
1546 <    public void testThenAccept3() {
1547 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1548 <        FailingConsumer r = new FailingConsumer();
1549 <        CompletableFuture<Void> g = f.thenAccept(r);
1550 <        f.complete(one);
1551 <        checkCompletedWithWrappedCFException(g);
1552 <        assertTrue(r.ran);
1553 <    }
1535 >    public void testThenAccept_exceptionalCompletion() {
1536 >        for (ExecutionMode m : ExecutionMode.values())
1537 >    {
1538 >        final CFException ex = new CFException();
1539 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1540 >        final NoopConsumer[] rs = new NoopConsumer[4];
1541 >        for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1542 >
1543 >        final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1544 >        final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1545 >        assertTrue(f.completeExceptionally(ex));
1546 >        final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1547 >        final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1548 >
1549 >        checkCompletedWithWrappedException(h0, ex);
1550 >        checkCompletedWithWrappedException(h1, ex);
1551 >        checkCompletedWithWrappedException(h2, ex);
1552 >        checkCompletedWithWrappedException(h3, ex);
1553 >        checkCompletedExceptionally(f, ex);
1554 >        for (NoopConsumer r : rs) r.assertNotInvoked();
1555 >    }}
1556  
1557      /**
1558       * thenAccept result completes exceptionally if source cancelled
1559       */
1560 <    public void testThenAccept4() {
1561 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1562 <        IncAction r = new IncAction();
1563 <        CompletableFuture<Void> g = f.thenAccept(r);
1564 <        assertTrue(f.cancel(true));
1565 <        checkCompletedWithWrappedCancellationException(g);
1566 <    }
1567 <
1560 >    public void testThenAccept_sourceCancelled() {
1561 >        for (ExecutionMode m : ExecutionMode.values())
1562 >        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1563 >    {
1564 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1565 >        final NoopConsumer[] rs = new NoopConsumer[4];
1566 >        for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1567 >
1568 >        final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1569 >        final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1570 >        assertTrue(f.cancel(mayInterruptIfRunning));
1571 >        final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1572 >        final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1573 >
1574 >        checkCompletedWithWrappedCancellationException(h0);
1575 >        checkCompletedWithWrappedCancellationException(h1);
1576 >        checkCompletedWithWrappedCancellationException(h2);
1577 >        checkCompletedWithWrappedCancellationException(h3);
1578 >        checkCancelled(f);
1579 >        for (NoopConsumer r : rs) r.assertNotInvoked();
1580 >    }}
1581  
1582      /**
1583 <     * thenCombine result completes normally after normal completion of sources
1583 >     * thenAccept result completes exceptionally if action does
1584       */
1585 <    public void testThenCombine() {
1586 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1587 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1588 <        CompletableFuture<Integer> g = f.thenCombine(f2, add);
1589 <        f.complete(one);
1590 <        checkIncomplete(g);
1591 <        f2.complete(two);
1592 <        checkCompletedNormally(g, three);
1593 <
1594 <        f = new CompletableFuture<Integer>();
1595 <        f.complete(one);
1596 <        f2 = new CompletableFuture<Integer>();
1597 <        g = f.thenCombine(f2, add);
1598 <        checkIncomplete(g);
1599 <        f2.complete(two);
1600 <        checkCompletedNormally(g, three);
1601 <    }
1585 >    public void testThenAccept_actionFailed() {
1586 >        for (ExecutionMode m : ExecutionMode.values())
1587 >        for (Integer v1 : new Integer[] { 1, null })
1588 >    {
1589 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1590 >        final FailingConsumer[] rs = new FailingConsumer[4];
1591 >        for (int i = 0; i < rs.length; i++) rs[i] = new FailingConsumer(m);
1592 >
1593 >        final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1594 >        final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1595 >        assertTrue(f.complete(v1));
1596 >        final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1597 >        final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1598 >
1599 >        checkCompletedWithWrappedCFException(h0);
1600 >        checkCompletedWithWrappedCFException(h1);
1601 >        checkCompletedWithWrappedCFException(h2);
1602 >        checkCompletedWithWrappedCFException(h3);
1603 >        checkCompletedNormally(f, v1);
1604 >    }}
1605 >
1606 >    /**
1607 >     * thenCombine result completes normally after normal completion
1608 >     * of sources
1609 >     */
1610 >    public void testThenCombine_normalCompletion() {
1611 >        for (ExecutionMode m : ExecutionMode.values())
1612 >        for (boolean fFirst : new boolean[] { true, false })
1613 >        for (Integer v1 : new Integer[] { 1, null })
1614 >        for (Integer v2 : new Integer[] { 2, null })
1615 >    {
1616 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1617 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
1618 >        final SubtractFunction[] rs = new SubtractFunction[6];
1619 >        for (int i = 0; i < rs.length; i++) rs[i] = new SubtractFunction(m);
1620 >
1621 >        final CompletableFuture<Integer> fst =  fFirst ? f : g;
1622 >        final CompletableFuture<Integer> snd = !fFirst ? f : g;
1623 >        final Integer w1 =  fFirst ? v1 : v2;
1624 >        final Integer w2 = !fFirst ? v1 : v2;
1625 >
1626 >        final CompletableFuture<Integer> h0 = m.thenCombine(f, g, rs[0]);
1627 >        final CompletableFuture<Integer> h1 = m.thenCombine(fst, fst, rs[1]);
1628 >        assertTrue(fst.complete(w1));
1629 >        final CompletableFuture<Integer> h2 = m.thenCombine(f, g, rs[2]);
1630 >        final CompletableFuture<Integer> h3 = m.thenCombine(fst, fst, rs[3]);
1631 >        checkIncomplete(h0); rs[0].assertNotInvoked();
1632 >        checkIncomplete(h2); rs[2].assertNotInvoked();
1633 >        checkCompletedNormally(h1, subtract(w1, w1));
1634 >        checkCompletedNormally(h3, subtract(w1, w1));
1635 >        rs[1].assertValue(subtract(w1, w1));
1636 >        rs[3].assertValue(subtract(w1, w1));
1637 >        assertTrue(snd.complete(w2));
1638 >        final CompletableFuture<Integer> h4 = m.thenCombine(f, g, rs[4]);
1639 >
1640 >        checkCompletedNormally(h0, subtract(v1, v2));
1641 >        checkCompletedNormally(h2, subtract(v1, v2));
1642 >        checkCompletedNormally(h4, subtract(v1, v2));
1643 >        rs[0].assertValue(subtract(v1, v2));
1644 >        rs[2].assertValue(subtract(v1, v2));
1645 >        rs[4].assertValue(subtract(v1, v2));
1646 >
1647 >        checkCompletedNormally(f, v1);
1648 >        checkCompletedNormally(g, v2);
1649 >    }}
1650  
1651      /**
1652       * thenCombine result completes exceptionally after exceptional
1653       * completion of either source
1654       */
1655 <    public void testThenCombine2() {
1656 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1657 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1658 <        CompletableFuture<Integer> g = f.thenCombine(f2, add);
1659 <        f.completeExceptionally(new CFException());
1660 <        f2.complete(two);
1661 <        checkCompletedWithWrappedCFException(g);
1662 <
1663 <        f = new CompletableFuture<Integer>();
1664 <        f.complete(one);
1665 <        f2 = new CompletableFuture<Integer>();
1666 <        g = f.thenCombine(f2, add);
1667 <        f2.completeExceptionally(new CFException());
1668 <        checkCompletedWithWrappedCFException(g);
1669 <    }
1655 >    public void testThenCombine_exceptionalCompletion() throws Throwable {
1656 >        for (ExecutionMode m : ExecutionMode.values())
1657 >        for (boolean fFirst : new boolean[] { true, false })
1658 >        for (boolean failFirst : new boolean[] { true, false })
1659 >        for (Integer v1 : new Integer[] { 1, null })
1660 >    {
1661 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1662 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
1663 >        final CFException ex = new CFException();
1664 >        final SubtractFunction r1 = new SubtractFunction(m);
1665 >        final SubtractFunction r2 = new SubtractFunction(m);
1666 >        final SubtractFunction r3 = new SubtractFunction(m);
1667 >
1668 >        final CompletableFuture<Integer> fst =  fFirst ? f : g;
1669 >        final CompletableFuture<Integer> snd = !fFirst ? f : g;
1670 >        final Callable<Boolean> complete1 = failFirst ?
1671 >            () -> fst.completeExceptionally(ex) :
1672 >            () -> fst.complete(v1);
1673 >        final Callable<Boolean> complete2 = failFirst ?
1674 >            () -> snd.complete(v1) :
1675 >            () -> snd.completeExceptionally(ex);
1676 >
1677 >        final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1678 >        assertTrue(complete1.call());
1679 >        final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1680 >        checkIncomplete(h1);
1681 >        checkIncomplete(h2);
1682 >        assertTrue(complete2.call());
1683 >        final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1684 >
1685 >        checkCompletedWithWrappedException(h1, ex);
1686 >        checkCompletedWithWrappedException(h2, ex);
1687 >        checkCompletedWithWrappedException(h3, ex);
1688 >        r1.assertNotInvoked();
1689 >        r2.assertNotInvoked();
1690 >        r3.assertNotInvoked();
1691 >        checkCompletedNormally(failFirst ? snd : fst, v1);
1692 >        checkCompletedExceptionally(failFirst ? fst : snd, ex);
1693 >    }}
1694  
1695      /**
1696 <     * thenCombine result completes exceptionally if action does
1696 >     * thenCombine result completes exceptionally if either source cancelled
1697       */
1698 <    public void testThenCombine3() {
1699 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1700 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1701 <        FailingBiFunction r = new FailingBiFunction();
1702 <        CompletableFuture<Integer> g = f.thenCombine(f2, r);
1703 <        f.complete(one);
1704 <        checkIncomplete(g);
1705 <        f2.complete(two);
1706 <        checkCompletedWithWrappedCFException(g);
1707 <    }
1698 >    public void testThenCombine_sourceCancelled() throws Throwable {
1699 >        for (ExecutionMode m : ExecutionMode.values())
1700 >        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1701 >        for (boolean fFirst : new boolean[] { true, false })
1702 >        for (boolean failFirst : new boolean[] { true, false })
1703 >        for (Integer v1 : new Integer[] { 1, null })
1704 >    {
1705 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1706 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
1707 >        final SubtractFunction r1 = new SubtractFunction(m);
1708 >        final SubtractFunction r2 = new SubtractFunction(m);
1709 >        final SubtractFunction r3 = new SubtractFunction(m);
1710 >
1711 >        final CompletableFuture<Integer> fst =  fFirst ? f : g;
1712 >        final CompletableFuture<Integer> snd = !fFirst ? f : g;
1713 >        final Callable<Boolean> complete1 = failFirst ?
1714 >            () -> fst.cancel(mayInterruptIfRunning) :
1715 >            () -> fst.complete(v1);
1716 >        final Callable<Boolean> complete2 = failFirst ?
1717 >            () -> snd.complete(v1) :
1718 >            () -> snd.cancel(mayInterruptIfRunning);
1719 >
1720 >        final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1721 >        assertTrue(complete1.call());
1722 >        final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1723 >        checkIncomplete(h1);
1724 >        checkIncomplete(h2);
1725 >        assertTrue(complete2.call());
1726 >        final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1727 >
1728 >        checkCompletedWithWrappedCancellationException(h1);
1729 >        checkCompletedWithWrappedCancellationException(h2);
1730 >        checkCompletedWithWrappedCancellationException(h3);
1731 >        r1.assertNotInvoked();
1732 >        r2.assertNotInvoked();
1733 >        r3.assertNotInvoked();
1734 >        checkCompletedNormally(failFirst ? snd : fst, v1);
1735 >        checkCancelled(failFirst ? fst : snd);
1736 >    }}
1737  
1738      /**
1739 <     * thenCombine result completes exceptionally if either source cancelled
1739 >     * thenCombine result completes exceptionally if action does
1740       */
1741 <    public void testThenCombine4() {
1742 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1743 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1744 <        CompletableFuture<Integer> g = f.thenCombine(f2, add);
1745 <        assertTrue(f.cancel(true));
1746 <        f2.complete(two);
1747 <        checkCompletedWithWrappedCancellationException(g);
1748 <        f = new CompletableFuture<Integer>();
1749 <        f2 = new CompletableFuture<Integer>();
1750 <        g = f.thenCombine(f2, add);
1751 <        f.complete(one);
1752 <        assertTrue(f2.cancel(true));
1753 <        checkCompletedWithWrappedCancellationException(g);
1754 <    }
1741 >    public void testThenCombine_actionFailed() {
1742 >        for (ExecutionMode m : ExecutionMode.values())
1743 >        for (boolean fFirst : new boolean[] { true, false })
1744 >        for (Integer v1 : new Integer[] { 1, null })
1745 >        for (Integer v2 : new Integer[] { 2, null })
1746 >    {
1747 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1748 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
1749 >        final FailingBiFunction r1 = new FailingBiFunction(m);
1750 >        final FailingBiFunction r2 = new FailingBiFunction(m);
1751 >        final FailingBiFunction r3 = new FailingBiFunction(m);
1752 >
1753 >        final CompletableFuture<Integer> fst =  fFirst ? f : g;
1754 >        final CompletableFuture<Integer> snd = !fFirst ? f : g;
1755 >        final Integer w1 =  fFirst ? v1 : v2;
1756 >        final Integer w2 = !fFirst ? v1 : v2;
1757 >
1758 >        final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1759 >        assertTrue(fst.complete(w1));
1760 >        final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1761 >        assertTrue(snd.complete(w2));
1762 >        final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1763 >
1764 >        checkCompletedWithWrappedCFException(h1);
1765 >        checkCompletedWithWrappedCFException(h2);
1766 >        checkCompletedWithWrappedCFException(h3);
1767 >        r1.assertInvoked();
1768 >        r2.assertInvoked();
1769 >        r3.assertInvoked();
1770 >        checkCompletedNormally(f, v1);
1771 >        checkCompletedNormally(g, v2);
1772 >    }}
1773  
1774      /**
1775       * thenAcceptBoth result completes normally after normal
1776       * completion of sources
1777       */
1778 <    public void testThenAcceptBoth() {
1779 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1780 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1781 <        AddAction r = new AddAction();
1782 <        CompletableFuture<Void> g = f.thenAcceptBoth(f2, r);
1783 <        f.complete(one);
1784 <        checkIncomplete(g);
1785 <        f2.complete(two);
1786 <        checkCompletedNormally(g, null);
1787 <        assertEquals(r.value, 3);
1788 <
1789 <        r = new AddAction();
1790 <        f = new CompletableFuture<Integer>();
1791 <        f.complete(one);
1792 <        f2 = new CompletableFuture<Integer>();
1793 <        g = f.thenAcceptBoth(f2, r);
1794 <        checkIncomplete(g);
1795 <        f2.complete(two);
1796 <        checkCompletedNormally(g, null);
1797 <        assertEquals(r.value, 3);
1798 <    }
1778 >    public void testThenAcceptBoth_normalCompletion() {
1779 >        for (ExecutionMode m : ExecutionMode.values())
1780 >        for (boolean fFirst : new boolean[] { true, false })
1781 >        for (Integer v1 : new Integer[] { 1, null })
1782 >        for (Integer v2 : new Integer[] { 2, null })
1783 >    {
1784 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1785 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
1786 >        final SubtractAction r1 = new SubtractAction(m);
1787 >        final SubtractAction r2 = new SubtractAction(m);
1788 >        final SubtractAction r3 = new SubtractAction(m);
1789 >
1790 >        final CompletableFuture<Integer> fst =  fFirst ? f : g;
1791 >        final CompletableFuture<Integer> snd = !fFirst ? f : g;
1792 >        final Integer w1 =  fFirst ? v1 : v2;
1793 >        final Integer w2 = !fFirst ? v1 : v2;
1794 >
1795 >        final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1796 >        assertTrue(fst.complete(w1));
1797 >        final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1798 >        checkIncomplete(h1);
1799 >        checkIncomplete(h2);
1800 >        r1.assertNotInvoked();
1801 >        r2.assertNotInvoked();
1802 >        assertTrue(snd.complete(w2));
1803 >        final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1804 >
1805 >        checkCompletedNormally(h1, null);
1806 >        checkCompletedNormally(h2, null);
1807 >        checkCompletedNormally(h3, null);
1808 >        r1.assertValue(subtract(v1, v2));
1809 >        r2.assertValue(subtract(v1, v2));
1810 >        r3.assertValue(subtract(v1, v2));
1811 >        checkCompletedNormally(f, v1);
1812 >        checkCompletedNormally(g, v2);
1813 >    }}
1814  
1815      /**
1816       * thenAcceptBoth result completes exceptionally after exceptional
1817       * completion of either source
1818       */
1819 <    public void testThenAcceptBoth2() {
1820 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1821 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1822 <        AddAction r = new AddAction();
1823 <        CompletableFuture<Void> g = f.thenAcceptBoth(f2, r);
1824 <        f.completeExceptionally(new CFException());
1825 <        f2.complete(two);
1826 <        checkCompletedWithWrappedCFException(g);
1827 <
1828 <        r = new AddAction();
1829 <        f = new CompletableFuture<Integer>();
1830 <        f.complete(one);
1831 <        f2 = new CompletableFuture<Integer>();
1832 <        g = f.thenAcceptBoth(f2, r);
1833 <        f2.completeExceptionally(new CFException());
1834 <        checkCompletedWithWrappedCFException(g);
1835 <    }
1819 >    public void testThenAcceptBoth_exceptionalCompletion() throws Throwable {
1820 >        for (ExecutionMode m : ExecutionMode.values())
1821 >        for (boolean fFirst : new boolean[] { true, false })
1822 >        for (boolean failFirst : new boolean[] { true, false })
1823 >        for (Integer v1 : new Integer[] { 1, null })
1824 >    {
1825 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1826 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
1827 >        final CFException ex = new CFException();
1828 >        final SubtractAction r1 = new SubtractAction(m);
1829 >        final SubtractAction r2 = new SubtractAction(m);
1830 >        final SubtractAction r3 = new SubtractAction(m);
1831 >
1832 >        final CompletableFuture<Integer> fst =  fFirst ? f : g;
1833 >        final CompletableFuture<Integer> snd = !fFirst ? f : g;
1834 >        final Callable<Boolean> complete1 = failFirst ?
1835 >            () -> fst.completeExceptionally(ex) :
1836 >            () -> fst.complete(v1);
1837 >        final Callable<Boolean> complete2 = failFirst ?
1838 >            () -> snd.complete(v1) :
1839 >            () -> snd.completeExceptionally(ex);
1840 >
1841 >        final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1842 >        assertTrue(complete1.call());
1843 >        final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1844 >        checkIncomplete(h1);
1845 >        checkIncomplete(h2);
1846 >        assertTrue(complete2.call());
1847 >        final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1848 >
1849 >        checkCompletedWithWrappedException(h1, ex);
1850 >        checkCompletedWithWrappedException(h2, ex);
1851 >        checkCompletedWithWrappedException(h3, ex);
1852 >        r1.assertNotInvoked();
1853 >        r2.assertNotInvoked();
1854 >        r3.assertNotInvoked();
1855 >        checkCompletedNormally(failFirst ? snd : fst, v1);
1856 >        checkCompletedExceptionally(failFirst ? fst : snd, ex);
1857 >    }}
1858  
1859      /**
1860 <     * thenAcceptBoth result completes exceptionally if action does
1860 >     * thenAcceptBoth result completes exceptionally if either source cancelled
1861       */
1862 <    public void testThenAcceptBoth3() {
1863 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1864 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1865 <        FailingBiConsumer r = new FailingBiConsumer();
1866 <        CompletableFuture<Void> g = f.thenAcceptBoth(f2, r);
1867 <        f.complete(one);
1868 <        checkIncomplete(g);
1869 <        f2.complete(two);
1870 <        checkCompletedWithWrappedCFException(g);
1871 <    }
1862 >    public void testThenAcceptBoth_sourceCancelled() throws Throwable {
1863 >        for (ExecutionMode m : ExecutionMode.values())
1864 >        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1865 >        for (boolean fFirst : new boolean[] { true, false })
1866 >        for (boolean failFirst : new boolean[] { true, false })
1867 >        for (Integer v1 : new Integer[] { 1, null })
1868 >    {
1869 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1870 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
1871 >        final SubtractAction r1 = new SubtractAction(m);
1872 >        final SubtractAction r2 = new SubtractAction(m);
1873 >        final SubtractAction r3 = new SubtractAction(m);
1874 >
1875 >        final CompletableFuture<Integer> fst =  fFirst ? f : g;
1876 >        final CompletableFuture<Integer> snd = !fFirst ? f : g;
1877 >        final Callable<Boolean> complete1 = failFirst ?
1878 >            () -> fst.cancel(mayInterruptIfRunning) :
1879 >            () -> fst.complete(v1);
1880 >        final Callable<Boolean> complete2 = failFirst ?
1881 >            () -> snd.complete(v1) :
1882 >            () -> snd.cancel(mayInterruptIfRunning);
1883 >
1884 >        final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1885 >        assertTrue(complete1.call());
1886 >        final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1887 >        checkIncomplete(h1);
1888 >        checkIncomplete(h2);
1889 >        assertTrue(complete2.call());
1890 >        final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1891 >
1892 >        checkCompletedWithWrappedCancellationException(h1);
1893 >        checkCompletedWithWrappedCancellationException(h2);
1894 >        checkCompletedWithWrappedCancellationException(h3);
1895 >        r1.assertNotInvoked();
1896 >        r2.assertNotInvoked();
1897 >        r3.assertNotInvoked();
1898 >        checkCompletedNormally(failFirst ? snd : fst, v1);
1899 >        checkCancelled(failFirst ? fst : snd);
1900 >    }}
1901  
1902      /**
1903 <     * thenAcceptBoth result completes exceptionally if either source cancelled
1903 >     * thenAcceptBoth result completes exceptionally if action does
1904       */
1905 <    public void testThenAcceptBoth4() {
1906 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1907 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1908 <        AddAction r = new AddAction();
1909 <        CompletableFuture<Void> g = f.thenAcceptBoth(f2, r);
1910 <        assertTrue(f.cancel(true));
1911 <        f2.complete(two);
1912 <        checkCompletedWithWrappedCancellationException(g);
1913 <        f = new CompletableFuture<Integer>();
1914 <        f2 = new CompletableFuture<Integer>();
1915 <        r = new AddAction();
1916 <        g = f.thenAcceptBoth(f2, r);
1917 <        f.complete(one);
1918 <        assertTrue(f2.cancel(true));
1919 <        checkCompletedWithWrappedCancellationException(g);
1920 <    }
1905 >    public void testThenAcceptBoth_actionFailed() {
1906 >        for (ExecutionMode m : ExecutionMode.values())
1907 >        for (boolean fFirst : new boolean[] { true, false })
1908 >        for (Integer v1 : new Integer[] { 1, null })
1909 >        for (Integer v2 : new Integer[] { 2, null })
1910 >    {
1911 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1912 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
1913 >        final FailingBiConsumer r1 = new FailingBiConsumer(m);
1914 >        final FailingBiConsumer r2 = new FailingBiConsumer(m);
1915 >        final FailingBiConsumer r3 = new FailingBiConsumer(m);
1916 >
1917 >        final CompletableFuture<Integer> fst =  fFirst ? f : g;
1918 >        final CompletableFuture<Integer> snd = !fFirst ? f : g;
1919 >        final Integer w1 =  fFirst ? v1 : v2;
1920 >        final Integer w2 = !fFirst ? v1 : v2;
1921 >
1922 >        final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1923 >        assertTrue(fst.complete(w1));
1924 >        final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1925 >        assertTrue(snd.complete(w2));
1926 >        final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1927 >
1928 >        checkCompletedWithWrappedCFException(h1);
1929 >        checkCompletedWithWrappedCFException(h2);
1930 >        checkCompletedWithWrappedCFException(h3);
1931 >        r1.assertInvoked();
1932 >        r2.assertInvoked();
1933 >        r3.assertInvoked();
1934 >        checkCompletedNormally(f, v1);
1935 >        checkCompletedNormally(g, v2);
1936 >    }}
1937  
1938      /**
1939       * runAfterBoth result completes normally after normal
1940       * completion of sources
1941       */
1942 <    public void testRunAfterBoth() {
1943 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1944 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1945 <        Noop r = new Noop();
1946 <        CompletableFuture<Void> g = f.runAfterBoth(f2, r);
1947 <        f.complete(one);
1948 <        checkIncomplete(g);
1949 <        f2.complete(two);
1950 <        checkCompletedNormally(g, null);
1951 <        assertTrue(r.ran);
1952 <
1953 <        r = new Noop();
1954 <        f = new CompletableFuture<Integer>();
1955 <        f.complete(one);
1956 <        f2 = new CompletableFuture<Integer>();
1957 <        g = f.runAfterBoth(f2, r);
1958 <        checkIncomplete(g);
1959 <        f2.complete(two);
1960 <        checkCompletedNormally(g, null);
1961 <        assertTrue(r.ran);
1962 <    }
1942 >    public void testRunAfterBoth_normalCompletion() {
1943 >        for (ExecutionMode m : ExecutionMode.values())
1944 >        for (boolean fFirst : new boolean[] { true, false })
1945 >        for (Integer v1 : new Integer[] { 1, null })
1946 >        for (Integer v2 : new Integer[] { 2, null })
1947 >    {
1948 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1949 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
1950 >        final Noop r1 = new Noop(m);
1951 >        final Noop r2 = new Noop(m);
1952 >        final Noop r3 = new Noop(m);
1953 >
1954 >        final CompletableFuture<Integer> fst =  fFirst ? f : g;
1955 >        final CompletableFuture<Integer> snd = !fFirst ? f : g;
1956 >        final Integer w1 =  fFirst ? v1 : v2;
1957 >        final Integer w2 = !fFirst ? v1 : v2;
1958 >
1959 >        final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
1960 >        assertTrue(fst.complete(w1));
1961 >        final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
1962 >        checkIncomplete(h1);
1963 >        checkIncomplete(h2);
1964 >        r1.assertNotInvoked();
1965 >        r2.assertNotInvoked();
1966 >        assertTrue(snd.complete(w2));
1967 >        final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
1968 >
1969 >        checkCompletedNormally(h1, null);
1970 >        checkCompletedNormally(h2, null);
1971 >        checkCompletedNormally(h3, null);
1972 >        r1.assertInvoked();
1973 >        r2.assertInvoked();
1974 >        r3.assertInvoked();
1975 >        checkCompletedNormally(f, v1);
1976 >        checkCompletedNormally(g, v2);
1977 >    }}
1978  
1979      /**
1980       * runAfterBoth result completes exceptionally after exceptional
1981       * completion of either source
1982       */
1983 <    public void testRunAfterBoth2() {
1984 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1985 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1986 <        Noop r = new Noop();
1987 <        CompletableFuture<Void> g = f.runAfterBoth(f2, r);
1988 <        f.completeExceptionally(new CFException());
1989 <        f2.complete(two);
1990 <        checkCompletedWithWrappedCFException(g);
1991 <
1992 <        r = new Noop();
1993 <        f = new CompletableFuture<Integer>();
1994 <        f.complete(one);
1995 <        f2 = new CompletableFuture<Integer>();
1996 <        g = f.runAfterBoth(f2, r);
1997 <        f2.completeExceptionally(new CFException());
1998 <        checkCompletedWithWrappedCFException(g);
1999 <    }
1983 >    public void testRunAfterBoth_exceptionalCompletion() throws Throwable {
1984 >        for (ExecutionMode m : ExecutionMode.values())
1985 >        for (boolean fFirst : new boolean[] { true, false })
1986 >        for (boolean failFirst : new boolean[] { true, false })
1987 >        for (Integer v1 : new Integer[] { 1, null })
1988 >    {
1989 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1990 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
1991 >        final CFException ex = new CFException();
1992 >        final Noop r1 = new Noop(m);
1993 >        final Noop r2 = new Noop(m);
1994 >        final Noop r3 = new Noop(m);
1995 >
1996 >        final CompletableFuture<Integer> fst =  fFirst ? f : g;
1997 >        final CompletableFuture<Integer> snd = !fFirst ? f : g;
1998 >        final Callable<Boolean> complete1 = failFirst ?
1999 >            () -> fst.completeExceptionally(ex) :
2000 >            () -> fst.complete(v1);
2001 >        final Callable<Boolean> complete2 = failFirst ?
2002 >            () -> snd.complete(v1) :
2003 >            () -> snd.completeExceptionally(ex);
2004 >
2005 >        final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2006 >        assertTrue(complete1.call());
2007 >        final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2008 >        checkIncomplete(h1);
2009 >        checkIncomplete(h2);
2010 >        assertTrue(complete2.call());
2011 >        final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2012 >
2013 >        checkCompletedWithWrappedException(h1, ex);
2014 >        checkCompletedWithWrappedException(h2, ex);
2015 >        checkCompletedWithWrappedException(h3, ex);
2016 >        r1.assertNotInvoked();
2017 >        r2.assertNotInvoked();
2018 >        r3.assertNotInvoked();
2019 >        checkCompletedNormally(failFirst ? snd : fst, v1);
2020 >        checkCompletedExceptionally(failFirst ? fst : snd, ex);
2021 >    }}
2022  
2023      /**
2024 <     * runAfterBoth result completes exceptionally if action does
2024 >     * runAfterBoth result completes exceptionally if either source cancelled
2025       */
2026 <    public void testRunAfterBoth3() {
2027 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2028 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2029 <        FailingNoop r = new FailingNoop();
2030 <        CompletableFuture<Void> g = f.runAfterBoth(f2, r);
2031 <        f.complete(one);
2032 <        checkIncomplete(g);
2033 <        f2.complete(two);
2034 <        checkCompletedWithWrappedCFException(g);
2035 <    }
2026 >    public void testRunAfterBoth_sourceCancelled() throws Throwable {
2027 >        for (ExecutionMode m : ExecutionMode.values())
2028 >        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2029 >        for (boolean fFirst : new boolean[] { true, false })
2030 >        for (boolean failFirst : new boolean[] { true, false })
2031 >        for (Integer v1 : new Integer[] { 1, null })
2032 >    {
2033 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
2034 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
2035 >        final Noop r1 = new Noop(m);
2036 >        final Noop r2 = new Noop(m);
2037 >        final Noop r3 = new Noop(m);
2038 >
2039 >        final CompletableFuture<Integer> fst =  fFirst ? f : g;
2040 >        final CompletableFuture<Integer> snd = !fFirst ? f : g;
2041 >        final Callable<Boolean> complete1 = failFirst ?
2042 >            () -> fst.cancel(mayInterruptIfRunning) :
2043 >            () -> fst.complete(v1);
2044 >        final Callable<Boolean> complete2 = failFirst ?
2045 >            () -> snd.complete(v1) :
2046 >            () -> snd.cancel(mayInterruptIfRunning);
2047 >
2048 >        final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2049 >        assertTrue(complete1.call());
2050 >        final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2051 >        checkIncomplete(h1);
2052 >        checkIncomplete(h2);
2053 >        assertTrue(complete2.call());
2054 >        final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2055 >
2056 >        checkCompletedWithWrappedCancellationException(h1);
2057 >        checkCompletedWithWrappedCancellationException(h2);
2058 >        checkCompletedWithWrappedCancellationException(h3);
2059 >        r1.assertNotInvoked();
2060 >        r2.assertNotInvoked();
2061 >        r3.assertNotInvoked();
2062 >        checkCompletedNormally(failFirst ? snd : fst, v1);
2063 >        checkCancelled(failFirst ? fst : snd);
2064 >    }}
2065  
2066      /**
2067 <     * runAfterBoth result completes exceptionally if either source cancelled
2067 >     * runAfterBoth result completes exceptionally if action does
2068       */
2069 <    public void testRunAfterBoth4() {
2070 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2071 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2072 <        Noop r = new Noop();
2073 <        CompletableFuture<Void> g = f.runAfterBoth(f2, r);
2074 <        assertTrue(f.cancel(true));
2075 <        f2.complete(two);
2076 <        checkCompletedWithWrappedCancellationException(g);
2077 <        f = new CompletableFuture<Integer>();
2078 <        f2 = new CompletableFuture<Integer>();
2079 <        r = new Noop();
2080 <        g = f.runAfterBoth(f2, r);
2081 <        f.complete(one);
2082 <        assertTrue(f2.cancel(true));
2083 <        checkCompletedWithWrappedCancellationException(g);
2084 <    }
2069 >    public void testRunAfterBoth_actionFailed() {
2070 >        for (ExecutionMode m : ExecutionMode.values())
2071 >        for (boolean fFirst : new boolean[] { true, false })
2072 >        for (Integer v1 : new Integer[] { 1, null })
2073 >        for (Integer v2 : new Integer[] { 2, null })
2074 >    {
2075 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
2076 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
2077 >        final FailingRunnable r1 = new FailingRunnable(m);
2078 >        final FailingRunnable r2 = new FailingRunnable(m);
2079 >        final FailingRunnable r3 = new FailingRunnable(m);
2080 >
2081 >        final CompletableFuture<Integer> fst =  fFirst ? f : g;
2082 >        final CompletableFuture<Integer> snd = !fFirst ? f : g;
2083 >        final Integer w1 =  fFirst ? v1 : v2;
2084 >        final Integer w2 = !fFirst ? v1 : v2;
2085 >
2086 >        final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2087 >        assertTrue(fst.complete(w1));
2088 >        final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2089 >        assertTrue(snd.complete(w2));
2090 >        final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2091 >
2092 >        checkCompletedWithWrappedCFException(h1);
2093 >        checkCompletedWithWrappedCFException(h2);
2094 >        checkCompletedWithWrappedCFException(h3);
2095 >        r1.assertInvoked();
2096 >        r2.assertInvoked();
2097 >        r3.assertInvoked();
2098 >        checkCompletedNormally(f, v1);
2099 >        checkCompletedNormally(g, v2);
2100 >    }}
2101  
2102      /**
2103       * applyToEither result completes normally after normal completion
2104       * of either source
2105       */
2106 <    public void testApplyToEither() {
2107 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2108 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2109 <        CompletableFuture<Integer> g = f.applyToEither(f2, inc);
2110 <        f.complete(one);
2111 <        checkCompletedNormally(g, two);
2112 <        f2.complete(one);
2113 <        checkCompletedNormally(g, two);
2114 <
2115 <        f = new CompletableFuture<Integer>();
2116 <        f.complete(one);
2117 <        f2 = new CompletableFuture<Integer>();
2118 <        g = f.applyToEither(f2, inc);
2119 <        checkCompletedNormally(g, two);
2120 <    }
2106 >    public void testApplyToEither_normalCompletion() {
2107 >        for (ExecutionMode m : ExecutionMode.values())
2108 >        for (Integer v1 : new Integer[] { 1, null })
2109 >        for (Integer v2 : new Integer[] { 2, null })
2110 >    {
2111 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
2112 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
2113 >        final IncFunction[] rs = new IncFunction[6];
2114 >        for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2115 >
2116 >        final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2117 >        final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2118 >        checkIncomplete(h0);
2119 >        checkIncomplete(h1);
2120 >        rs[0].assertNotInvoked();
2121 >        rs[1].assertNotInvoked();
2122 >        f.complete(v1);
2123 >        checkCompletedNormally(h0, inc(v1));
2124 >        checkCompletedNormally(h1, inc(v1));
2125 >        final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2126 >        final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2127 >        checkCompletedNormally(h2, inc(v1));
2128 >        checkCompletedNormally(h3, inc(v1));
2129 >        g.complete(v2);
2130 >
2131 >        // unspecified behavior - both source completions available
2132 >        final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2133 >        final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2134 >        rs[4].assertValue(h4.join());
2135 >        rs[5].assertValue(h5.join());
2136 >        assertTrue(Objects.equals(inc(v1), h4.join()) ||
2137 >                   Objects.equals(inc(v2), h4.join()));
2138 >        assertTrue(Objects.equals(inc(v1), h5.join()) ||
2139 >                   Objects.equals(inc(v2), h5.join()));
2140 >
2141 >        checkCompletedNormally(f, v1);
2142 >        checkCompletedNormally(g, v2);
2143 >        checkCompletedNormally(h0, inc(v1));
2144 >        checkCompletedNormally(h1, inc(v1));
2145 >        checkCompletedNormally(h2, inc(v1));
2146 >        checkCompletedNormally(h3, inc(v1));
2147 >        for (int i = 0; i < 4; i++) rs[i].assertValue(inc(v1));
2148 >    }}
2149  
2150      /**
2151       * applyToEither result completes exceptionally after exceptional
2152       * completion of either source
2153       */
2154 <    public void testApplyToEither2() {
2155 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2156 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2157 <        CompletableFuture<Integer> g = f.applyToEither(f2, inc);
2158 <        f.completeExceptionally(new CFException());
2159 <        f2.complete(one);
2160 <        checkCompletedWithWrappedCFException(g);
2154 >    public void testApplyToEither_exceptionalCompletion() {
2155 >        for (ExecutionMode m : ExecutionMode.values())
2156 >        for (Integer v1 : new Integer[] { 1, null })
2157 >    {
2158 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
2159 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
2160 >        final CFException ex = new CFException();
2161 >        final IncFunction[] rs = new IncFunction[6];
2162 >        for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2163 >
2164 >        final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2165 >        final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2166 >        checkIncomplete(h0);
2167 >        checkIncomplete(h1);
2168 >        rs[0].assertNotInvoked();
2169 >        rs[1].assertNotInvoked();
2170 >        f.completeExceptionally(ex);
2171 >        checkCompletedWithWrappedException(h0, ex);
2172 >        checkCompletedWithWrappedException(h1, ex);
2173 >        final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2174 >        final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2175 >        checkCompletedWithWrappedException(h2, ex);
2176 >        checkCompletedWithWrappedException(h3, ex);
2177 >        g.complete(v1);
2178 >
2179 >        // unspecified behavior - both source completions available
2180 >        final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2181 >        final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2182 >        try {
2183 >            assertEquals(inc(v1), h4.join());
2184 >            rs[4].assertValue(inc(v1));
2185 >        } catch (CompletionException ok) {
2186 >            checkCompletedWithWrappedException(h4, ex);
2187 >            rs[4].assertNotInvoked();
2188 >        }
2189 >        try {
2190 >            assertEquals(inc(v1), h5.join());
2191 >            rs[5].assertValue(inc(v1));
2192 >        } catch (CompletionException ok) {
2193 >            checkCompletedWithWrappedException(h5, ex);
2194 >            rs[5].assertNotInvoked();
2195 >        }
2196  
2197 <        f = new CompletableFuture<Integer>();
2198 <        f2 = new CompletableFuture<Integer>();
2199 <        f2.completeExceptionally(new CFException());
2200 <        g = f.applyToEither(f2, inc);
2201 <        checkCompletedWithWrappedCFException(g);
2202 <    }
2197 >        checkCompletedExceptionally(f, ex);
2198 >        checkCompletedNormally(g, v1);
2199 >        checkCompletedWithWrappedException(h0, ex);
2200 >        checkCompletedWithWrappedException(h1, ex);
2201 >        checkCompletedWithWrappedException(h2, ex);
2202 >        checkCompletedWithWrappedException(h3, ex);
2203 >        checkCompletedWithWrappedException(h4, ex);
2204 >        for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2205 >    }}
2206 >
2207 >    public void testApplyToEither_exceptionalCompletion2() {
2208 >        for (ExecutionMode m : ExecutionMode.values())
2209 >        for (boolean fFirst : new boolean[] { true, false })
2210 >        for (Integer v1 : new Integer[] { 1, null })
2211 >    {
2212 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
2213 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
2214 >        final CFException ex = new CFException();
2215 >        final IncFunction[] rs = new IncFunction[6];
2216 >        for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2217 >
2218 >        final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2219 >        final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2220 >        assertTrue(fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2221 >        assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2222 >        final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2223 >        final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2224  
2225 <    /**
2226 <     * applyToEither result completes exceptionally if action does
2227 <     */
2228 <    public void testApplyToEither3() {
2229 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2230 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2231 <        FailingFunction r = new FailingFunction();
2232 <        CompletableFuture<Integer> g = f.applyToEither(f2, r);
2233 <        f2.complete(two);
2234 <        checkCompletedWithWrappedCFException(g);
2235 <    }
2225 >        // unspecified behavior - both source completions available
2226 >        try {
2227 >            assertEquals(inc(v1), h0.join());
2228 >            rs[0].assertValue(inc(v1));
2229 >        } catch (CompletionException ok) {
2230 >            checkCompletedWithWrappedException(h0, ex);
2231 >            rs[0].assertNotInvoked();
2232 >        }
2233 >        try {
2234 >            assertEquals(inc(v1), h1.join());
2235 >            rs[1].assertValue(inc(v1));
2236 >        } catch (CompletionException ok) {
2237 >            checkCompletedWithWrappedException(h1, ex);
2238 >            rs[1].assertNotInvoked();
2239 >        }
2240 >        try {
2241 >            assertEquals(inc(v1), h2.join());
2242 >            rs[2].assertValue(inc(v1));
2243 >        } catch (CompletionException ok) {
2244 >            checkCompletedWithWrappedException(h2, ex);
2245 >            rs[2].assertNotInvoked();
2246 >        }
2247 >        try {
2248 >            assertEquals(inc(v1), h3.join());
2249 >            rs[3].assertValue(inc(v1));
2250 >        } catch (CompletionException ok) {
2251 >            checkCompletedWithWrappedException(h3, ex);
2252 >            rs[3].assertNotInvoked();
2253 >        }
2254  
2255 <    /**
2256 <     * applyToEither result completes exceptionally if either source cancelled
2257 <     */
886 <    public void testApplyToEither4() {
887 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
888 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
889 <        CompletableFuture<Integer> g = f.applyToEither(f2, inc);
890 <        assertTrue(f.cancel(true));
891 <        checkCompletedWithWrappedCancellationException(g);
892 <        f = new CompletableFuture<Integer>();
893 <        f2 = new CompletableFuture<Integer>();
894 <        assertTrue(f2.cancel(true));
895 <        checkCompletedWithWrappedCancellationException(g);
896 <    }
2255 >        checkCompletedNormally(f, v1);
2256 >        checkCompletedExceptionally(g, ex);
2257 >    }}
2258  
2259      /**
2260 <     * acceptEither result completes normally after normal completion
900 <     * of either source
2260 >     * applyToEither result completes exceptionally if either source cancelled
2261       */
2262 <    public void testAcceptEither() {
2263 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2264 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2265 <        IncAction r = new IncAction();
2266 <        CompletableFuture<Void> g = f.acceptEither(f2, r);
2267 <        f.complete(one);
2268 <        checkCompletedNormally(g, null);
2269 <        f2.complete(one);
2270 <        checkCompletedNormally(g, null);
2271 <        assertEquals(r.value, 2);
2272 <
2273 <        r = new IncAction();
2274 <        f = new CompletableFuture<Integer>();
2275 <        f.complete(one);
2276 <        f2 = new CompletableFuture<Integer>();
2277 <        g = f.acceptEither(f2, r);
2278 <        checkCompletedNormally(g, null);
2279 <        assertEquals(r.value, 2);
2280 <    }
2262 >    public void testApplyToEither_sourceCancelled() {
2263 >        for (ExecutionMode m : ExecutionMode.values())
2264 >        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2265 >        for (Integer v1 : new Integer[] { 1, null })
2266 >    {
2267 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
2268 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
2269 >        final IncFunction[] rs = new IncFunction[6];
2270 >        for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2271 >
2272 >        final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2273 >        final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2274 >        checkIncomplete(h0);
2275 >        checkIncomplete(h1);
2276 >        rs[0].assertNotInvoked();
2277 >        rs[1].assertNotInvoked();
2278 >        f.cancel(mayInterruptIfRunning);
2279 >        checkCompletedWithWrappedCancellationException(h0);
2280 >        checkCompletedWithWrappedCancellationException(h1);
2281 >        final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2282 >        final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2283 >        checkCompletedWithWrappedCancellationException(h2);
2284 >        checkCompletedWithWrappedCancellationException(h3);
2285 >        g.complete(v1);
2286 >
2287 >        // unspecified behavior - both source completions available
2288 >        final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2289 >        final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2290 >        try {
2291 >            assertEquals(inc(v1), h4.join());
2292 >            rs[4].assertValue(inc(v1));
2293 >        } catch (CompletionException ok) {
2294 >            checkCompletedWithWrappedCancellationException(h4);
2295 >            rs[4].assertNotInvoked();
2296 >        }
2297 >        try {
2298 >            assertEquals(inc(v1), h5.join());
2299 >            rs[5].assertValue(inc(v1));
2300 >        } catch (CompletionException ok) {
2301 >            checkCompletedWithWrappedCancellationException(h5);
2302 >            rs[5].assertNotInvoked();
2303 >        }
2304  
2305 <    /**
2306 <     * acceptEither result completes exceptionally after exceptional
2307 <     * completion of either source
2308 <     */
2309 <    public void testAcceptEither2() {
2310 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2311 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2312 <        IncAction r = new IncAction();
2313 <        CompletableFuture<Void> g = f.acceptEither(f2, r);
2314 <        f.completeExceptionally(new CFException());
2315 <        f2.complete(one);
2316 <        checkCompletedWithWrappedCFException(g);
2305 >        checkCancelled(f);
2306 >        checkCompletedNormally(g, v1);
2307 >        checkCompletedWithWrappedCancellationException(h0);
2308 >        checkCompletedWithWrappedCancellationException(h1);
2309 >        checkCompletedWithWrappedCancellationException(h2);
2310 >        checkCompletedWithWrappedCancellationException(h3);
2311 >        for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2312 >    }}
2313 >
2314 >    public void testApplyToEither_sourceCancelled2() {
2315 >        for (ExecutionMode m : ExecutionMode.values())
2316 >        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2317 >        for (boolean fFirst : new boolean[] { true, false })
2318 >        for (Integer v1 : new Integer[] { 1, null })
2319 >    {
2320 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
2321 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
2322 >        final IncFunction[] rs = new IncFunction[6];
2323 >        for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2324 >
2325 >        final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2326 >        final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2327 >        assertTrue(fFirst ? f.complete(v1) : g.cancel(mayInterruptIfRunning));
2328 >        assertTrue(!fFirst ? f.complete(v1) : g.cancel(mayInterruptIfRunning));
2329 >        final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2330 >        final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2331  
2332 <        r = new IncAction();
2333 <        f = new CompletableFuture<Integer>();
2334 <        f2 = new CompletableFuture<Integer>();
2335 <        f2.completeExceptionally(new CFException());
2336 <        g = f.acceptEither(f2, r);
2337 <        checkCompletedWithWrappedCFException(g);
2338 <    }
2332 >        // unspecified behavior - both source completions available
2333 >        try {
2334 >            assertEquals(inc(v1), h0.join());
2335 >            rs[0].assertValue(inc(v1));
2336 >        } catch (CompletionException ok) {
2337 >            checkCompletedWithWrappedCancellationException(h0);
2338 >            rs[0].assertNotInvoked();
2339 >        }
2340 >        try {
2341 >            assertEquals(inc(v1), h1.join());
2342 >            rs[1].assertValue(inc(v1));
2343 >        } catch (CompletionException ok) {
2344 >            checkCompletedWithWrappedCancellationException(h1);
2345 >            rs[1].assertNotInvoked();
2346 >        }
2347 >        try {
2348 >            assertEquals(inc(v1), h2.join());
2349 >            rs[2].assertValue(inc(v1));
2350 >        } catch (CompletionException ok) {
2351 >            checkCompletedWithWrappedCancellationException(h2);
2352 >            rs[2].assertNotInvoked();
2353 >        }
2354 >        try {
2355 >            assertEquals(inc(v1), h3.join());
2356 >            rs[3].assertValue(inc(v1));
2357 >        } catch (CompletionException ok) {
2358 >            checkCompletedWithWrappedCancellationException(h3);
2359 >            rs[3].assertNotInvoked();
2360 >        }
2361  
2362 <    /**
2363 <     * acceptEither result completes exceptionally if action does
2364 <     */
946 <    public void testAcceptEither3() {
947 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
948 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
949 <        FailingConsumer r = new FailingConsumer();
950 <        CompletableFuture<Void> g = f.acceptEither(f2, r);
951 <        f2.complete(two);
952 <        checkCompletedWithWrappedCFException(g);
953 <    }
2362 >        checkCompletedNormally(f, v1);
2363 >        checkCancelled(g);
2364 >    }}
2365  
2366      /**
2367 <     * acceptEither result completes exceptionally if either source cancelled
2367 >     * applyToEither result completes exceptionally if action does
2368       */
2369 <    public void testAcceptEither4() {
2370 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2371 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2372 <        IncAction r = new IncAction();
2373 <        CompletableFuture<Void> g = f.acceptEither(f2, r);
2374 <        assertTrue(f.cancel(true));
2375 <        checkCompletedWithWrappedCancellationException(g);
2376 <        f = new CompletableFuture<Integer>();
2377 <        f2 = new CompletableFuture<Integer>();
2378 <        assertTrue(f2.cancel(true));
2379 <        checkCompletedWithWrappedCancellationException(g);
2380 <    }
2381 <
2369 >    public void testApplyToEither_actionFailed() {
2370 >        for (ExecutionMode m : ExecutionMode.values())
2371 >        for (Integer v1 : new Integer[] { 1, null })
2372 >        for (Integer v2 : new Integer[] { 2, null })
2373 >    {
2374 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
2375 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
2376 >        final FailingFunction[] rs = new FailingFunction[6];
2377 >        for (int i = 0; i < rs.length; i++) rs[i] = new FailingFunction(m);
2378 >
2379 >        final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2380 >        final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2381 >        f.complete(v1);
2382 >        final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2383 >        final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2384 >        checkCompletedWithWrappedCFException(h0);
2385 >        checkCompletedWithWrappedCFException(h1);
2386 >        checkCompletedWithWrappedCFException(h2);
2387 >        checkCompletedWithWrappedCFException(h3);
2388 >        for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2389 >
2390 >        g.complete(v2);
2391 >
2392 >        // unspecified behavior - both source completions available
2393 >        final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2394 >        final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2395 >
2396 >        checkCompletedWithWrappedCFException(h4);
2397 >        assertTrue(Objects.equals(v1, rs[4].value) ||
2398 >                   Objects.equals(v2, rs[4].value));
2399 >        checkCompletedWithWrappedCFException(h5);
2400 >        assertTrue(Objects.equals(v1, rs[5].value) ||
2401 >                   Objects.equals(v2, rs[5].value));
2402 >
2403 >        checkCompletedNormally(f, v1);
2404 >        checkCompletedNormally(g, v2);
2405 >    }}
2406  
2407      /**
2408 <     * runAfterEither result completes normally after normal completion
2408 >     * acceptEither result completes normally after normal completion
2409       * of either source
2410       */
2411 <    public void testRunAfterEither() {
2412 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2413 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2414 <        Noop r = new Noop();
2415 <        CompletableFuture<Void> g = f.runAfterEither(f2, r);
2416 <        f.complete(one);
2417 <        checkCompletedNormally(g, null);
2418 <        f2.complete(one);
2419 <        checkCompletedNormally(g, null);
2420 <        assertTrue(r.ran);
2421 <
2422 <        r = new Noop();
2423 <        f = new CompletableFuture<Integer>();
2424 <        f.complete(one);
2425 <        f2 = new CompletableFuture<Integer>();
2426 <        g = f.runAfterEither(f2, r);
2427 <        checkCompletedNormally(g, null);
2428 <        assertTrue(r.ran);
2429 <    }
2411 >    public void testAcceptEither_normalCompletion() {
2412 >        for (ExecutionMode m : ExecutionMode.values())
2413 >        for (Integer v1 : new Integer[] { 1, null })
2414 >        for (Integer v2 : new Integer[] { 2, null })
2415 >    {
2416 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
2417 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
2418 >        final NoopConsumer[] rs = new NoopConsumer[6];
2419 >        for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2420 >
2421 >        final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2422 >        final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2423 >        checkIncomplete(h0);
2424 >        checkIncomplete(h1);
2425 >        rs[0].assertNotInvoked();
2426 >        rs[1].assertNotInvoked();
2427 >        f.complete(v1);
2428 >        checkCompletedNormally(h0, null);
2429 >        checkCompletedNormally(h1, null);
2430 >        rs[0].assertValue(v1);
2431 >        rs[1].assertValue(v1);
2432 >        final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2433 >        final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2434 >        checkCompletedNormally(h2, null);
2435 >        checkCompletedNormally(h3, null);
2436 >        rs[2].assertValue(v1);
2437 >        rs[3].assertValue(v1);
2438 >        g.complete(v2);
2439 >
2440 >        // unspecified behavior - both source completions available
2441 >        final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2442 >        final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2443 >        checkCompletedNormally(h4, null);
2444 >        checkCompletedNormally(h5, null);
2445 >        assertTrue(Objects.equals(v1, rs[4].value) ||
2446 >                   Objects.equals(v2, rs[4].value));
2447 >        assertTrue(Objects.equals(v1, rs[5].value) ||
2448 >                   Objects.equals(v2, rs[5].value));
2449 >
2450 >        checkCompletedNormally(f, v1);
2451 >        checkCompletedNormally(g, v2);
2452 >        checkCompletedNormally(h0, null);
2453 >        checkCompletedNormally(h1, null);
2454 >        checkCompletedNormally(h2, null);
2455 >        checkCompletedNormally(h3, null);
2456 >        for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2457 >    }}
2458  
2459      /**
2460 <     * runAfterEither result completes exceptionally after exceptional
2460 >     * acceptEither result completes exceptionally after exceptional
2461       * completion of either source
2462       */
2463 <    public void testRunAfterEither2() {
2464 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2465 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2466 <        Noop r = new Noop();
2467 <        CompletableFuture<Void> g = f.runAfterEither(f2, r);
2468 <        f.completeExceptionally(new CFException());
2469 <        f2.complete(one);
2470 <        checkCompletedWithWrappedCFException(g);
2471 <
2472 <        r = new Noop();
2473 <        f = new CompletableFuture<Integer>();
2474 <        f2 = new CompletableFuture<Integer>();
2475 <        f2.completeExceptionally(new CFException());
2476 <        g = f.runAfterEither(f2, r);
2477 <        checkCompletedWithWrappedCFException(g);
2478 <    }
2479 <
2480 <    /**
2481 <     * runAfterEither result completes exceptionally if action does
2482 <     */
2483 <    public void testRunAfterEither3() {
2484 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2485 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2486 <        FailingNoop r = new FailingNoop();
2487 <        CompletableFuture<Void> g = f.runAfterEither(f2, r);
2488 <        f2.complete(two);
2489 <        checkCompletedWithWrappedCFException(g);
2490 <    }
2491 <
1029 <    /**
1030 <     * runAfterEither result completes exceptionally if either source cancelled
1031 <     */
1032 <    public void testRunAfterEither4() {
1033 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1034 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1035 <        Noop r = new Noop();
1036 <        CompletableFuture<Void> g = f.runAfterEither(f2, r);
1037 <        assertTrue(f.cancel(true));
1038 <        checkCompletedWithWrappedCancellationException(g);
1039 <        f = new CompletableFuture<Integer>();
1040 <        f2 = new CompletableFuture<Integer>();
1041 <        assertTrue(f2.cancel(true));
1042 <        checkCompletedWithWrappedCancellationException(g);
1043 <    }
1044 <
1045 <    /**
1046 <     * thenCompose result completes normally after normal completion of source
1047 <     */
1048 <    public void testThenCompose() {
1049 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1050 <        CompletableFutureInc r = new CompletableFutureInc();
1051 <        CompletableFuture<Integer> g = f.thenCompose(r);
1052 <        f.complete(one);
1053 <        checkCompletedNormally(g, two);
1054 <    }
1055 <
1056 <    /**
1057 <     * thenCompose result completes exceptionally after exceptional
1058 <     * completion of source
1059 <     */
1060 <    public void testThenCompose2() {
1061 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1062 <        CompletableFutureInc r = new CompletableFutureInc();
1063 <        CompletableFuture<Integer> g = f.thenCompose(r);
1064 <        f.completeExceptionally(new CFException());
1065 <        checkCompletedWithWrappedCFException(g);
1066 <    }
1067 <
1068 <    /**
1069 <     * thenCompose result completes exceptionally if action does
1070 <     */
1071 <    public void testThenCompose3() {
1072 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1073 <        FailingCompletableFutureFunction r = new FailingCompletableFutureFunction();
1074 <        CompletableFuture<Integer> g = f.thenCompose(r);
1075 <        f.complete(one);
1076 <        checkCompletedWithWrappedCFException(g);
1077 <    }
1078 <
1079 <    /**
1080 <     * thenCompose result completes exceptionally if source cancelled
1081 <     */
1082 <    public void testThenCompose4() {
1083 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1084 <        CompletableFutureInc r = new CompletableFutureInc();
1085 <        CompletableFuture<Integer> g = f.thenCompose(r);
1086 <        assertTrue(f.cancel(true));
1087 <        checkCompletedWithWrappedCancellationException(g);
1088 <    }
1089 <
1090 <
1091 <    // asyncs
1092 <
1093 <    /**
1094 <     * thenRunAsync result completes normally after normal completion of source
1095 <     */
1096 <    public void testThenRunAsync() {
1097 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1098 <        Noop r = new Noop();
1099 <        CompletableFuture<Void> g = f.thenRunAsync(r);
1100 <        f.complete(null);
1101 <        checkCompletedNormally(g, null);
1102 <
1103 <        // reordered version
1104 <        f = new CompletableFuture<Integer>();
1105 <        f.complete(null);
1106 <        r = new Noop();
1107 <        g = f.thenRunAsync(r);
1108 <        checkCompletedNormally(g, null);
1109 <    }
1110 <
1111 <    /**
1112 <     * thenRunAsync result completes exceptionally after exceptional
1113 <     * completion of source
1114 <     */
1115 <    public void testThenRunAsync2() {
1116 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1117 <        Noop r = new Noop();
1118 <        CompletableFuture<Void> g = f.thenRunAsync(r);
1119 <        f.completeExceptionally(new CFException());
2463 >    public void testAcceptEither_exceptionalCompletion() {
2464 >        for (ExecutionMode m : ExecutionMode.values())
2465 >        for (Integer v1 : new Integer[] { 1, null })
2466 >    {
2467 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
2468 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
2469 >        final CFException ex = new CFException();
2470 >        final NoopConsumer[] rs = new NoopConsumer[6];
2471 >        for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2472 >
2473 >        final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2474 >        final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2475 >        checkIncomplete(h0);
2476 >        checkIncomplete(h1);
2477 >        rs[0].assertNotInvoked();
2478 >        rs[1].assertNotInvoked();
2479 >        f.completeExceptionally(ex);
2480 >        checkCompletedWithWrappedException(h0, ex);
2481 >        checkCompletedWithWrappedException(h1, ex);
2482 >        final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2483 >        final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2484 >        checkCompletedWithWrappedException(h2, ex);
2485 >        checkCompletedWithWrappedException(h3, ex);
2486 >
2487 >        g.complete(v1);
2488 >
2489 >        // unspecified behavior - both source completions available
2490 >        final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2491 >        final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2492          try {
2493 <            g.join();
2494 <            shouldThrow();
2495 <        } catch (Exception ok) {
2493 >            assertNull(h4.join());
2494 >            rs[4].assertValue(v1);
2495 >        } catch (CompletionException ok) {
2496 >            checkCompletedWithWrappedException(h4, ex);
2497 >            rs[4].assertNotInvoked();
2498          }
1125        checkCompletedWithWrappedCFException(g);
1126    }
1127
1128    /**
1129     * thenRunAsync result completes exceptionally if action does
1130     */
1131    public void testThenRunAsync3() {
1132        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1133        FailingNoop r = new FailingNoop();
1134        CompletableFuture<Void> g = f.thenRunAsync(r);
1135        f.complete(null);
1136        checkCompletedWithWrappedCFException(g);
1137    }
1138
1139    /**
1140     * thenRunAsync result completes exceptionally if source cancelled
1141     */
1142    public void testThenRunAsync4() {
1143        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1144        Noop r = new Noop();
1145        CompletableFuture<Void> g = f.thenRunAsync(r);
1146        assertTrue(f.cancel(true));
1147        checkCompletedWithWrappedCancellationException(g);
1148    }
1149
1150    /**
1151     * thenApplyAsync result completes normally after normal completion of source
1152     */
1153    public void testThenApplyAsync() {
1154        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1155        CompletableFuture<Integer> g = f.thenApplyAsync(inc);
1156        f.complete(one);
1157        checkCompletedNormally(g, two);
1158    }
1159
1160    /**
1161     * thenApplyAsync result completes exceptionally after exceptional
1162     * completion of source
1163     */
1164    public void testThenApplyAsync2() {
1165        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1166        CompletableFuture<Integer> g = f.thenApplyAsync(inc);
1167        f.completeExceptionally(new CFException());
1168        checkCompletedWithWrappedCFException(g);
1169    }
1170
1171    /**
1172     * thenApplyAsync result completes exceptionally if action does
1173     */
1174    public void testThenApplyAsync3() {
1175        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1176        FailingFunction r = new FailingFunction();
1177        CompletableFuture<Integer> g = f.thenApplyAsync(r);
1178        f.complete(null);
1179        checkCompletedWithWrappedCFException(g);
1180    }
1181
1182    /**
1183     * thenApplyAsync result completes exceptionally if source cancelled
1184     */
1185    public void testThenApplyAsync4() {
1186        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1187        CompletableFuture<Integer> g = f.thenApplyAsync(inc);
1188        assertTrue(f.cancel(true));
1189        checkCompletedWithWrappedCancellationException(g);
1190    }
1191
1192    /**
1193     * thenAcceptAsync result completes normally after normal
1194     * completion of source
1195     */
1196    public void testThenAcceptAsync() {
1197        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1198        IncAction r = new IncAction();
1199        CompletableFuture<Void> g = f.thenAcceptAsync(r);
1200        f.complete(one);
1201        checkCompletedNormally(g, null);
1202        assertEquals(r.value, 2);
1203    }
1204
1205    /**
1206     * thenAcceptAsync result completes exceptionally after exceptional
1207     * completion of source
1208     */
1209    public void testThenAcceptAsync2() {
1210        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1211        IncAction r = new IncAction();
1212        CompletableFuture<Void> g = f.thenAcceptAsync(r);
1213        f.completeExceptionally(new CFException());
1214        checkCompletedWithWrappedCFException(g);
1215    }
1216
1217    /**
1218     * thenAcceptAsync result completes exceptionally if action does
1219     */
1220    public void testThenAcceptAsync3() {
1221        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1222        FailingConsumer r = new FailingConsumer();
1223        CompletableFuture<Void> g = f.thenAcceptAsync(r);
1224        f.complete(null);
1225        checkCompletedWithWrappedCFException(g);
1226    }
1227
1228    /**
1229     * thenAcceptAsync result completes exceptionally if source cancelled
1230     */
1231    public void testThenAcceptAsync4() {
1232        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1233        IncAction r = new IncAction();
1234        CompletableFuture<Void> g = f.thenAcceptAsync(r);
1235        assertTrue(f.cancel(true));
1236        checkCompletedWithWrappedCancellationException(g);
1237    }
1238    /**
1239     * thenCombineAsync result completes normally after normal
1240     * completion of sources
1241     */
1242    public void testThenCombineAsync() {
1243        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1244        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1245        CompletableFuture<Integer> g = f.thenCombineAsync(f2, add);
1246        f.complete(one);
1247        checkIncomplete(g);
1248        f2.complete(two);
1249        checkCompletedNormally(g, three);
1250    }
1251
1252    /**
1253     * thenCombineAsync result completes exceptionally after exceptional
1254     * completion of source
1255     */
1256    public void testThenCombineAsync2() {
1257        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1258        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1259        CompletableFuture<Integer> g = f.thenCombineAsync(f2, add);
1260        f.completeExceptionally(new CFException());
1261        f2.complete(two);
1262        checkCompletedWithWrappedCFException(g);
1263
1264        f = new CompletableFuture<Integer>();
1265        f2 = new CompletableFuture<Integer>();
1266        g = f.thenCombineAsync(f2, add);
1267        f.complete(one);
1268        f2.completeExceptionally(new CFException());
1269        checkCompletedWithWrappedCFException(g);
1270    }
1271
1272    /**
1273     * thenCombineAsync result completes exceptionally if action does
1274     */
1275    public void testThenCombineAsync3() {
1276        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1277        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1278        FailingBiFunction r = new FailingBiFunction();
1279        CompletableFuture<Integer> g = f.thenCombineAsync(f2, r);
1280        f.complete(one);
1281        checkIncomplete(g);
1282        f2.complete(two);
1283        checkCompletedWithWrappedCFException(g);
1284    }
1285
1286    /**
1287     * thenCombineAsync result completes exceptionally if either source cancelled
1288     */
1289    public void testThenCombineAsync4() {
1290        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1291        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1292        CompletableFuture<Integer> g = f.thenCombineAsync(f2, add);
1293        assertTrue(f.cancel(true));
1294        f2.complete(two);
1295        checkCompletedWithWrappedCancellationException(g);
1296
1297        f = new CompletableFuture<Integer>();
1298        f2 = new CompletableFuture<Integer>();
1299        g = f.thenCombineAsync(f2, add);
1300        f.complete(one);
1301        assertTrue(f2.cancel(true));
1302        checkCompletedWithWrappedCancellationException(g);
1303    }
1304
1305    /**
1306     * thenAcceptBothAsync result completes normally after normal
1307     * completion of sources
1308     */
1309    public void testThenAcceptBothAsync() {
1310        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1311        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1312        AddAction r = new AddAction();
1313        CompletableFuture<Void> g = f.thenAcceptBothAsync(f2, r);
1314        f.complete(one);
1315        checkIncomplete(g);
1316        f2.complete(two);
1317        checkCompletedNormally(g, null);
1318        assertEquals(r.value, 3);
1319    }
1320
1321    /**
1322     * thenAcceptBothAsync result completes exceptionally after exceptional
1323     * completion of source
1324     */
1325    public void testThenAcceptBothAsync2() {
1326        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1327        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1328        AddAction r = new AddAction();
1329        CompletableFuture<Void> g = f.thenAcceptBothAsync(f2, r);
1330        f.completeExceptionally(new CFException());
1331        f2.complete(two);
1332        checkCompletedWithWrappedCFException(g);
1333
1334        r = new AddAction();
1335        f = new CompletableFuture<Integer>();
1336        f2 = new CompletableFuture<Integer>();
1337        g = f.thenAcceptBothAsync(f2, r);
1338        f.complete(one);
1339        f2.completeExceptionally(new CFException());
1340        checkCompletedWithWrappedCFException(g);
1341    }
1342
1343    /**
1344     * thenAcceptBothAsync result completes exceptionally if action does
1345     */
1346    public void testThenAcceptBothAsync3() {
1347        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1348        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1349        FailingBiConsumer r = new FailingBiConsumer();
1350        CompletableFuture<Void> g = f.thenAcceptBothAsync(f2, r);
1351        f.complete(one);
1352        checkIncomplete(g);
1353        f2.complete(two);
1354        checkCompletedWithWrappedCFException(g);
1355    }
1356
1357    /**
1358     * thenAcceptBothAsync result completes exceptionally if either source cancelled
1359     */
1360    public void testThenAcceptBothAsync4() {
1361        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1362        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1363        AddAction r = new AddAction();
1364        CompletableFuture<Void> g = f.thenAcceptBothAsync(f2, r);
1365        assertTrue(f.cancel(true));
1366        f2.complete(two);
1367        checkCompletedWithWrappedCancellationException(g);
1368
1369        r = new AddAction();
1370        f = new CompletableFuture<Integer>();
1371        f2 = new CompletableFuture<Integer>();
1372        g = f.thenAcceptBothAsync(f2, r);
1373        f.complete(one);
1374        assertTrue(f2.cancel(true));
1375        checkCompletedWithWrappedCancellationException(g);
1376    }
1377
1378    /**
1379     * runAfterBothAsync result completes normally after normal
1380     * completion of sources
1381     */
1382    public void testRunAfterBothAsync() {
1383        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1384        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1385        Noop r = new Noop();
1386        CompletableFuture<Void> g = f.runAfterBothAsync(f2, r);
1387        f.complete(one);
1388        checkIncomplete(g);
1389        f2.complete(two);
1390        checkCompletedNormally(g, null);
1391        assertTrue(r.ran);
1392    }
1393
1394    /**
1395     * runAfterBothAsync result completes exceptionally after exceptional
1396     * completion of source
1397     */
1398    public void testRunAfterBothAsync2() {
1399        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1400        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1401        Noop r = new Noop();
1402        CompletableFuture<Void> g = f.runAfterBothAsync(f2, r);
1403        f.completeExceptionally(new CFException());
1404        f2.complete(two);
1405        checkCompletedWithWrappedCFException(g);
1406
1407        r = new Noop();
1408        f = new CompletableFuture<Integer>();
1409        f2 = new CompletableFuture<Integer>();
1410        g = f.runAfterBothAsync(f2, r);
1411        f.complete(one);
1412        f2.completeExceptionally(new CFException());
1413        checkCompletedWithWrappedCFException(g);
1414    }
1415
1416    /**
1417     * runAfterBothAsync result completes exceptionally if action does
1418     */
1419    public void testRunAfterBothAsync3() {
1420        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1421        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1422        FailingNoop r = new FailingNoop();
1423        CompletableFuture<Void> g = f.runAfterBothAsync(f2, r);
1424        f.complete(one);
1425        checkIncomplete(g);
1426        f2.complete(two);
1427        checkCompletedWithWrappedCFException(g);
1428    }
1429
1430    /**
1431     * runAfterBothAsync result completes exceptionally if either source cancelled
1432     */
1433    public void testRunAfterBothAsync4() {
1434        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1435        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1436        Noop r = new Noop();
1437        CompletableFuture<Void> g = f.runAfterBothAsync(f2, r);
1438        assertTrue(f.cancel(true));
1439        f2.complete(two);
1440        checkCompletedWithWrappedCancellationException(g);
1441
1442        r = new Noop();
1443        f = new CompletableFuture<Integer>();
1444        f2 = new CompletableFuture<Integer>();
1445        g = f.runAfterBothAsync(f2, r);
1446        f.complete(one);
1447        assertTrue(f2.cancel(true));
1448        checkCompletedWithWrappedCancellationException(g);
1449    }
1450
1451    /**
1452     * applyToEitherAsync result completes normally after normal
1453     * completion of sources
1454     */
1455    public void testApplyToEitherAsync() {
1456        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1457        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1458        CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc);
1459        f.complete(one);
1460        checkCompletedNormally(g, two);
1461
1462        f = new CompletableFuture<Integer>();
1463        f.complete(one);
1464        f2 = new CompletableFuture<Integer>();
1465        g = f.applyToEitherAsync(f2, inc);
1466        checkCompletedNormally(g, two);
1467    }
1468
1469    /**
1470     * applyToEitherAsync result completes exceptionally after exceptional
1471     * completion of source
1472     */
1473    public void testApplyToEitherAsync2() {
1474        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1475        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1476        CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc);
1477        f.completeExceptionally(new CFException());
1478        checkCompletedWithWrappedCFException(g);
1479
1480        f = new CompletableFuture<Integer>();
1481        f2 = new CompletableFuture<Integer>();
1482        f2.completeExceptionally(new CFException());
1483        g = f.applyToEitherAsync(f2, inc);
1484        f.complete(one);
1485        checkCompletedWithWrappedCFException(g);
1486    }
1487
1488    /**
1489     * applyToEitherAsync result completes exceptionally if action does
1490     */
1491    public void testApplyToEitherAsync3() {
1492        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1493        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1494        FailingFunction r = new FailingFunction();
1495        CompletableFuture<Integer> g = f.applyToEitherAsync(f2, r);
1496        f.complete(one);
1497        checkCompletedWithWrappedCFException(g);
1498    }
1499
1500    /**
1501     * applyToEitherAsync result completes exceptionally if either source cancelled
1502     */
1503    public void testApplyToEitherAsync4() {
1504        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1505        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1506        CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc);
1507        assertTrue(f.cancel(true));
1508        checkCompletedWithWrappedCancellationException(g);
1509
1510        f = new CompletableFuture<Integer>();
1511        f2 = new CompletableFuture<Integer>();
1512        assertTrue(f2.cancel(true));
1513        g = f.applyToEitherAsync(f2, inc);
1514        checkCompletedWithWrappedCancellationException(g);
1515    }
1516
1517    /**
1518     * acceptEitherAsync result completes normally after normal
1519     * completion of sources
1520     */
1521    public void testAcceptEitherAsync() {
1522        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1523        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1524        IncAction r = new IncAction();
1525        CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
1526        f.complete(one);
1527        checkCompletedNormally(g, null);
1528        assertEquals(r.value, 2);
1529
1530        r = new IncAction();
1531        f = new CompletableFuture<Integer>();
1532        f.complete(one);
1533        f2 = new CompletableFuture<Integer>();
1534        g = f.acceptEitherAsync(f2, r);
1535        checkCompletedNormally(g, null);
1536        assertEquals(r.value, 2);
1537    }
1538
1539    /**
1540     * acceptEitherAsync result completes exceptionally after exceptional
1541     * completion of source
1542     */
1543    public void testAcceptEitherAsync2() {
1544        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1545        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1546        IncAction r = new IncAction();
1547        CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
1548        f.completeExceptionally(new CFException());
1549        checkCompletedWithWrappedCFException(g);
1550
1551        r = new IncAction();
1552        f = new CompletableFuture<Integer>();
1553        f2 = new CompletableFuture<Integer>();
1554        f2.completeExceptionally(new CFException());
1555        g = f.acceptEitherAsync(f2, r);
1556        f.complete(one);
1557        checkCompletedWithWrappedCFException(g);
1558    }
1559
1560    /**
1561     * acceptEitherAsync result completes exceptionally if action does
1562     */
1563    public void testAcceptEitherAsync3() {
1564        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1565        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1566        FailingConsumer r = new FailingConsumer();
1567        CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
1568        f.complete(one);
1569        checkCompletedWithWrappedCFException(g);
1570    }
1571
1572    /**
1573     * acceptEitherAsync result completes exceptionally if either
1574     * source cancelled
1575     */
1576    public void testAcceptEitherAsync4() {
1577        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1578        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1579        IncAction r = new IncAction();
1580        CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
1581        assertTrue(f.cancel(true));
1582        checkCompletedWithWrappedCancellationException(g);
1583
1584        r = new IncAction();
1585        f = new CompletableFuture<Integer>();
1586        f2 = new CompletableFuture<Integer>();
1587        assertTrue(f2.cancel(true));
1588        g = f.acceptEitherAsync(f2, r);
1589        checkCompletedWithWrappedCancellationException(g);
1590    }
1591
1592    /**
1593     * runAfterEitherAsync result completes normally after normal
1594     * completion of sources
1595     */
1596    public void testRunAfterEitherAsync() {
1597        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1598        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1599        Noop r = new Noop();
1600        CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
1601        f.complete(one);
1602        checkCompletedNormally(g, null);
1603        assertTrue(r.ran);
1604
1605        r = new Noop();
1606        f = new CompletableFuture<Integer>();
1607        f.complete(one);
1608        f2 = new CompletableFuture<Integer>();
1609        g = f.runAfterEitherAsync(f2, r);
1610        checkCompletedNormally(g, null);
1611        assertTrue(r.ran);
1612    }
1613
1614    /**
1615     * runAfterEitherAsync result completes exceptionally after exceptional
1616     * completion of source
1617     */
1618    public void testRunAfterEitherAsync2() {
1619        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1620        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1621        Noop r = new Noop();
1622        CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
1623        f.completeExceptionally(new CFException());
1624        checkCompletedWithWrappedCFException(g);
1625
1626        r = new Noop();
1627        f = new CompletableFuture<Integer>();
1628        f2 = new CompletableFuture<Integer>();
1629        f2.completeExceptionally(new CFException());
1630        g = f.runAfterEitherAsync(f2, r);
1631        f.complete(one);
1632        checkCompletedWithWrappedCFException(g);
1633    }
1634
1635    /**
1636     * runAfterEitherAsync result completes exceptionally if action does
1637     */
1638    public void testRunAfterEitherAsync3() {
1639        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1640        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1641        FailingNoop r = new FailingNoop();
1642        CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
1643        f.complete(one);
1644        checkCompletedWithWrappedCFException(g);
1645    }
1646
1647    /**
1648     * runAfterEitherAsync result completes exceptionally if either
1649     * source cancelled
1650     */
1651    public void testRunAfterEitherAsync4() {
1652        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1653        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1654        Noop r = new Noop();
1655        CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
1656        assertTrue(f.cancel(true));
1657        checkCompletedWithWrappedCancellationException(g);
1658
1659        r = new Noop();
1660        f = new CompletableFuture<Integer>();
1661        f2 = new CompletableFuture<Integer>();
1662        assertTrue(f2.cancel(true));
1663        g = f.runAfterEitherAsync(f2, r);
1664        checkCompletedWithWrappedCancellationException(g);
1665    }
1666
1667    /**
1668     * thenComposeAsync result completes normally after normal
1669     * completion of source
1670     */
1671    public void testThenComposeAsync() {
1672        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1673        CompletableFutureInc r = new CompletableFutureInc();
1674        CompletableFuture<Integer> g = f.thenComposeAsync(r);
1675        f.complete(one);
1676        checkCompletedNormally(g, two);
1677    }
1678
1679    /**
1680     * thenComposeAsync result completes exceptionally after
1681     * exceptional completion of source
1682     */
1683    public void testThenComposeAsync2() {
1684        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1685        CompletableFutureInc r = new CompletableFutureInc();
1686        CompletableFuture<Integer> g = f.thenComposeAsync(r);
1687        f.completeExceptionally(new CFException());
1688        checkCompletedWithWrappedCFException(g);
1689    }
1690
1691    /**
1692     * thenComposeAsync result completes exceptionally if action does
1693     */
1694    public void testThenComposeAsync3() {
1695        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1696        FailingCompletableFutureFunction r = new FailingCompletableFutureFunction();
1697        CompletableFuture<Integer> g = f.thenComposeAsync(r);
1698        f.complete(one);
1699        checkCompletedWithWrappedCFException(g);
1700    }
1701
1702    /**
1703     * thenComposeAsync result completes exceptionally if source cancelled
1704     */
1705    public void testThenComposeAsync4() {
1706        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1707        CompletableFutureInc r = new CompletableFutureInc();
1708        CompletableFuture<Integer> g = f.thenComposeAsync(r);
1709        assertTrue(f.cancel(true));
1710        checkCompletedWithWrappedCancellationException(g);
1711    }
1712
1713
1714    // async with explicit executors
1715
1716    /**
1717     * thenRunAsync result completes normally after normal completion of source
1718     */
1719    public void testThenRunAsyncE() {
1720        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1721        Noop r = new Noop();
1722        CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
1723        f.complete(null);
1724        checkCompletedNormally(g, null);
1725
1726        // reordered version
1727        f = new CompletableFuture<Integer>();
1728        f.complete(null);
1729        r = new Noop();
1730        g = f.thenRunAsync(r, new ThreadExecutor());
1731        checkCompletedNormally(g, null);
1732    }
1733
1734    /**
1735     * thenRunAsync result completes exceptionally after exceptional
1736     * completion of source
1737     */
1738    public void testThenRunAsync2E() {
1739        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1740        Noop r = new Noop();
1741        CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
1742        f.completeExceptionally(new CFException());
2499          try {
2500 <            g.join();
2501 <            shouldThrow();
2502 <        } catch (Exception ok) {
2500 >            assertNull(h5.join());
2501 >            rs[5].assertValue(v1);
2502 >        } catch (CompletionException ok) {
2503 >            checkCompletedWithWrappedException(h5, ex);
2504 >            rs[5].assertNotInvoked();
2505          }
1748        checkCompletedWithWrappedCFException(g);
1749    }
1750
1751    /**
1752     * thenRunAsync result completes exceptionally if action does
1753     */
1754    public void testThenRunAsync3E() {
1755        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1756        FailingNoop r = new FailingNoop();
1757        CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
1758        f.complete(null);
1759        checkCompletedWithWrappedCFException(g);
1760    }
1761
1762    /**
1763     * thenRunAsync result completes exceptionally if source cancelled
1764     */
1765    public void testThenRunAsync4E() {
1766        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1767        Noop r = new Noop();
1768        CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
1769        assertTrue(f.cancel(true));
1770        checkCompletedWithWrappedCancellationException(g);
1771    }
1772
1773    /**
1774     * thenApplyAsync result completes normally after normal completion of source
1775     */
1776    public void testThenApplyAsyncE() {
1777        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1778        CompletableFuture<Integer> g = f.thenApplyAsync(inc, new ThreadExecutor());
1779        f.complete(one);
1780        checkCompletedNormally(g, two);
1781    }
1782
1783    /**
1784     * thenApplyAsync result completes exceptionally after exceptional
1785     * completion of source
1786     */
1787    public void testThenApplyAsync2E() {
1788        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1789        CompletableFuture<Integer> g = f.thenApplyAsync(inc, new ThreadExecutor());
1790        f.completeExceptionally(new CFException());
1791        checkCompletedWithWrappedCFException(g);
1792    }
1793
1794    /**
1795     * thenApplyAsync result completes exceptionally if action does
1796     */
1797    public void testThenApplyAsync3E() {
1798        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1799        FailingFunction r = new FailingFunction();
1800        CompletableFuture<Integer> g = f.thenApplyAsync(r, new ThreadExecutor());
1801        f.complete(null);
1802        checkCompletedWithWrappedCFException(g);
1803    }
1804
1805    /**
1806     * thenApplyAsync result completes exceptionally if source cancelled
1807     */
1808    public void testThenApplyAsync4E() {
1809        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1810        CompletableFuture<Integer> g = f.thenApplyAsync(inc, new ThreadExecutor());
1811        assertTrue(f.cancel(true));
1812        checkCompletedWithWrappedCancellationException(g);
1813    }
1814
1815    /**
1816     * thenAcceptAsync result completes normally after normal
1817     * completion of source
1818     */
1819    public void testThenAcceptAsyncE() {
1820        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1821        IncAction r = new IncAction();
1822        CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
1823        f.complete(one);
1824        checkCompletedNormally(g, null);
1825        assertEquals(r.value, 2);
1826    }
1827
1828    /**
1829     * thenAcceptAsync result completes exceptionally after exceptional
1830     * completion of source
1831     */
1832    public void testThenAcceptAsync2E() {
1833        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1834        IncAction r = new IncAction();
1835        CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
1836        f.completeExceptionally(new CFException());
1837        checkCompletedWithWrappedCFException(g);
1838    }
1839
1840    /**
1841     * thenAcceptAsync result completes exceptionally if action does
1842     */
1843    public void testThenAcceptAsync3E() {
1844        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1845        FailingConsumer r = new FailingConsumer();
1846        CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
1847        f.complete(null);
1848        checkCompletedWithWrappedCFException(g);
1849    }
1850
1851    /**
1852     * thenAcceptAsync result completes exceptionally if source cancelled
1853     */
1854    public void testThenAcceptAsync4E() {
1855        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1856        IncAction r = new IncAction();
1857        CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
1858        assertTrue(f.cancel(true));
1859        checkCompletedWithWrappedCancellationException(g);
1860    }
1861    /**
1862     * thenCombineAsync result completes normally after normal
1863     * completion of sources
1864     */
1865    public void testThenCombineAsyncE() {
1866        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1867        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1868        CompletableFuture<Integer> g = f.thenCombineAsync(f2, add, new ThreadExecutor());
1869        f.complete(one);
1870        checkIncomplete(g);
1871        f2.complete(two);
1872        checkCompletedNormally(g, three);
1873    }
1874
1875    /**
1876     * thenCombineAsync result completes exceptionally after exceptional
1877     * completion of source
1878     */
1879    public void testThenCombineAsync2E() {
1880        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1881        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1882        CompletableFuture<Integer> g = f.thenCombineAsync(f2, add, new ThreadExecutor());
1883        f.completeExceptionally(new CFException());
1884        f2.complete(two);
1885        checkCompletedWithWrappedCFException(g);
1886
1887        f = new CompletableFuture<Integer>();
1888        f2 = new CompletableFuture<Integer>();
1889        g = f.thenCombineAsync(f2, add, new ThreadExecutor());
1890        f.complete(one);
1891        f2.completeExceptionally(new CFException());
1892        checkCompletedWithWrappedCFException(g);
1893    }
1894
1895    /**
1896     * thenCombineAsync result completes exceptionally if action does
1897     */
1898    public void testThenCombineAsync3E() {
1899        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1900        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1901        FailingBiFunction r = new FailingBiFunction();
1902        CompletableFuture<Integer> g = f.thenCombineAsync(f2, r, new ThreadExecutor());
1903        f.complete(one);
1904        checkIncomplete(g);
1905        f2.complete(two);
1906        checkCompletedWithWrappedCFException(g);
1907    }
1908
1909    /**
1910     * thenCombineAsync result completes exceptionally if either source cancelled
1911     */
1912    public void testThenCombineAsync4E() {
1913        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1914        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1915        CompletableFuture<Integer> g = f.thenCombineAsync(f2, add, new ThreadExecutor());
1916        assertTrue(f.cancel(true));
1917        f2.complete(two);
1918        checkCompletedWithWrappedCancellationException(g);
1919
1920        f = new CompletableFuture<Integer>();
1921        f2 = new CompletableFuture<Integer>();
1922        g = f.thenCombineAsync(f2, add, new ThreadExecutor());
1923        f.complete(one);
1924        assertTrue(f2.cancel(true));
1925        checkCompletedWithWrappedCancellationException(g);
1926    }
1927
1928    /**
1929     * thenAcceptBothAsync result completes normally after normal
1930     * completion of sources
1931     */
1932    public void testThenAcceptBothAsyncE() {
1933        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1934        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1935        AddAction r = new AddAction();
1936        CompletableFuture<Void> g = f.thenAcceptBothAsync(f2, r, new ThreadExecutor());
1937        f.complete(one);
1938        checkIncomplete(g);
1939        f2.complete(two);
1940        checkCompletedNormally(g, null);
1941        assertEquals(r.value, 3);
1942    }
1943
1944    /**
1945     * thenAcceptBothAsync result completes exceptionally after exceptional
1946     * completion of source
1947     */
1948    public void testThenAcceptBothAsync2E() {
1949        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1950        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1951        AddAction r = new AddAction();
1952        CompletableFuture<Void> g = f.thenAcceptBothAsync(f2, r, new ThreadExecutor());
1953        f.completeExceptionally(new CFException());
1954        f2.complete(two);
1955        checkCompletedWithWrappedCFException(g);
2506  
2507 <        r = new AddAction();
2508 <        f = new CompletableFuture<Integer>();
2509 <        f2 = new CompletableFuture<Integer>();
2510 <        g = f.thenAcceptBothAsync(f2, r, new ThreadExecutor());
2511 <        f.complete(one);
2512 <        f2.completeExceptionally(new CFException());
2513 <        checkCompletedWithWrappedCFException(g);
2514 <    }
2515 <
2516 <    /**
2517 <     * thenAcceptBothAsync result completes exceptionally if action does
2518 <     */
2519 <    public void testThenAcceptBothAsync3E() {
2520 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2521 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2522 <        FailingBiConsumer r = new FailingBiConsumer();
2523 <        CompletableFuture<Void> g = f.thenAcceptBothAsync(f2, r, new ThreadExecutor());
2524 <        f.complete(one);
2525 <        checkIncomplete(g);
2526 <        f2.complete(two);
2527 <        checkCompletedWithWrappedCFException(g);
2528 <    }
2529 <
2530 <    /**
2531 <     * thenAcceptBothAsync result completes exceptionally if either source cancelled
2532 <     */
2533 <    public void testThenAcceptBothAsync4E() {
1984 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1985 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1986 <        AddAction r = new AddAction();
1987 <        CompletableFuture<Void> g = f.thenAcceptBothAsync(f2, r, new ThreadExecutor());
1988 <        assertTrue(f.cancel(true));
1989 <        f2.complete(two);
1990 <        checkCompletedWithWrappedCancellationException(g);
2507 >        checkCompletedExceptionally(f, ex);
2508 >        checkCompletedNormally(g, v1);
2509 >        checkCompletedWithWrappedException(h0, ex);
2510 >        checkCompletedWithWrappedException(h1, ex);
2511 >        checkCompletedWithWrappedException(h2, ex);
2512 >        checkCompletedWithWrappedException(h3, ex);
2513 >        checkCompletedWithWrappedException(h4, ex);
2514 >        for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2515 >    }}
2516 >
2517 >    public void testAcceptEither_exceptionalCompletion2() {
2518 >        for (ExecutionMode m : ExecutionMode.values())
2519 >        for (boolean fFirst : new boolean[] { true, false })
2520 >        for (Integer v1 : new Integer[] { 1, null })
2521 >    {
2522 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
2523 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
2524 >        final CFException ex = new CFException();
2525 >        final NoopConsumer[] rs = new NoopConsumer[6];
2526 >        for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2527 >
2528 >        final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2529 >        final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2530 >        assertTrue(fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2531 >        assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2532 >        final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2533 >        final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2534  
2535 <        r = new AddAction();
2536 <        f = new CompletableFuture<Integer>();
2537 <        f2 = new CompletableFuture<Integer>();
2538 <        g = f.thenAcceptBothAsync(f2, r, new ThreadExecutor());
2539 <        f.complete(one);
2540 <        assertTrue(f2.cancel(true));
2541 <        checkCompletedWithWrappedCancellationException(g);
2542 <    }
2543 <
2544 <    /**
2545 <     * runAfterBothAsync result completes normally after normal
2546 <     * completion of sources
2547 <     */
2548 <    public void testRunAfterBothAsyncE() {
2549 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2550 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2551 <        Noop r = new Noop();
2552 <        CompletableFuture<Void> g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
2553 <        f.complete(one);
2554 <        checkIncomplete(g);
2555 <        f2.complete(two);
2556 <        checkCompletedNormally(g, null);
2557 <        assertTrue(r.ran);
2558 <    }
2559 <
2560 <    /**
2561 <     * runAfterBothAsync result completes exceptionally after exceptional
2562 <     * completion of source
2563 <     */
2021 <    public void testRunAfterBothAsync2E() {
2022 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2023 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2024 <        Noop r = new Noop();
2025 <        CompletableFuture<Void> g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
2026 <        f.completeExceptionally(new CFException());
2027 <        f2.complete(two);
2028 <        checkCompletedWithWrappedCFException(g);
2029 <
2030 <        r = new Noop();
2031 <        f = new CompletableFuture<Integer>();
2032 <        f2 = new CompletableFuture<Integer>();
2033 <        g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
2034 <        f.complete(one);
2035 <        f2.completeExceptionally(new CFException());
2036 <        checkCompletedWithWrappedCFException(g);
2037 <    }
2535 >        // unspecified behavior - both source completions available
2536 >        try {
2537 >            assertEquals(null, h0.join());
2538 >            rs[0].assertValue(v1);
2539 >        } catch (CompletionException ok) {
2540 >            checkCompletedWithWrappedException(h0, ex);
2541 >            rs[0].assertNotInvoked();
2542 >        }
2543 >        try {
2544 >            assertEquals(null, h1.join());
2545 >            rs[1].assertValue(v1);
2546 >        } catch (CompletionException ok) {
2547 >            checkCompletedWithWrappedException(h1, ex);
2548 >            rs[1].assertNotInvoked();
2549 >        }
2550 >        try {
2551 >            assertEquals(null, h2.join());
2552 >            rs[2].assertValue(v1);
2553 >        } catch (CompletionException ok) {
2554 >            checkCompletedWithWrappedException(h2, ex);
2555 >            rs[2].assertNotInvoked();
2556 >        }
2557 >        try {
2558 >            assertEquals(null, h3.join());
2559 >            rs[3].assertValue(v1);
2560 >        } catch (CompletionException ok) {
2561 >            checkCompletedWithWrappedException(h3, ex);
2562 >            rs[3].assertNotInvoked();
2563 >        }
2564  
2565 <    /**
2566 <     * runAfterBothAsync result completes exceptionally if action does
2567 <     */
2042 <    public void testRunAfterBothAsync3E() {
2043 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2044 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2045 <        FailingNoop r = new FailingNoop();
2046 <        CompletableFuture<Void> g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
2047 <        f.complete(one);
2048 <        checkIncomplete(g);
2049 <        f2.complete(two);
2050 <        checkCompletedWithWrappedCFException(g);
2051 <    }
2565 >        checkCompletedNormally(f, v1);
2566 >        checkCompletedExceptionally(g, ex);
2567 >    }}
2568  
2569      /**
2570 <     * runAfterBothAsync result completes exceptionally if either source cancelled
2570 >     * acceptEither result completes exceptionally if either source cancelled
2571       */
2572 <    public void testRunAfterBothAsync4E() {
2573 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2574 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2575 <        Noop r = new Noop();
2576 <        CompletableFuture<Void> g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
2577 <        assertTrue(f.cancel(true));
2578 <        f2.complete(two);
2579 <        checkCompletedWithWrappedCancellationException(g);
2580 <
2581 <        r = new Noop();
2582 <        f = new CompletableFuture<Integer>();
2583 <        f2 = new CompletableFuture<Integer>();
2584 <        g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
2585 <        f.complete(one);
2586 <        assertTrue(f2.cancel(true));
2587 <        checkCompletedWithWrappedCancellationException(g);
2588 <    }
2572 >    public void testAcceptEither_sourceCancelled() {
2573 >        for (ExecutionMode m : ExecutionMode.values())
2574 >        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2575 >        for (Integer v1 : new Integer[] { 1, null })
2576 >    {
2577 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
2578 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
2579 >        final NoopConsumer[] rs = new NoopConsumer[6];
2580 >        for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2581 >
2582 >        final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2583 >        final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2584 >        checkIncomplete(h0);
2585 >        checkIncomplete(h1);
2586 >        rs[0].assertNotInvoked();
2587 >        rs[1].assertNotInvoked();
2588 >        f.cancel(mayInterruptIfRunning);
2589 >        checkCompletedWithWrappedCancellationException(h0);
2590 >        checkCompletedWithWrappedCancellationException(h1);
2591 >        final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2592 >        final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2593 >        checkCompletedWithWrappedCancellationException(h2);
2594 >        checkCompletedWithWrappedCancellationException(h3);
2595 >
2596 >        g.complete(v1);
2597 >
2598 >        // unspecified behavior - both source completions available
2599 >        final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2600 >        final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2601 >        try {
2602 >            assertNull(h4.join());
2603 >            rs[4].assertValue(v1);
2604 >        } catch (CompletionException ok) {
2605 >            checkCompletedWithWrappedCancellationException(h4);
2606 >            rs[4].assertNotInvoked();
2607 >        }
2608 >        try {
2609 >            assertNull(h5.join());
2610 >            rs[5].assertValue(v1);
2611 >        } catch (CompletionException ok) {
2612 >            checkCompletedWithWrappedCancellationException(h5);
2613 >            rs[5].assertNotInvoked();
2614 >        }
2615  
2616 <    /**
2617 <     * applyToEitherAsync result completes normally after normal
2618 <     * completion of sources
2619 <     */
2620 <    public void testApplyToEitherAsyncE() {
2621 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2622 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2623 <        CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
2082 <        f.complete(one);
2083 <        checkCompletedNormally(g, two);
2084 <
2085 <        f = new CompletableFuture<Integer>();
2086 <        f.complete(one);
2087 <        f2 = new CompletableFuture<Integer>();
2088 <        g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
2089 <        checkCompletedNormally(g, two);
2090 <    }
2616 >        checkCancelled(f);
2617 >        checkCompletedNormally(g, v1);
2618 >        checkCompletedWithWrappedCancellationException(h0);
2619 >        checkCompletedWithWrappedCancellationException(h1);
2620 >        checkCompletedWithWrappedCancellationException(h2);
2621 >        checkCompletedWithWrappedCancellationException(h3);
2622 >        for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2623 >    }}
2624  
2625      /**
2626 <     * applyToEitherAsync result completes exceptionally after exceptional
2094 <     * completion of source
2626 >     * acceptEither result completes exceptionally if action does
2627       */
2628 <    public void testApplyToEitherAsync2E() {
2629 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2630 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2631 <        CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
2632 <        f.completeExceptionally(new CFException());
2633 <        checkCompletedWithWrappedCFException(g);
2634 <
2635 <        f = new CompletableFuture<Integer>();
2636 <        f2 = new CompletableFuture<Integer>();
2637 <        f2.completeExceptionally(new CFException());
2638 <        g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
2639 <        f.complete(one);
2640 <        checkCompletedWithWrappedCFException(g);
2641 <    }
2628 >    public void testAcceptEither_actionFailed() {
2629 >        for (ExecutionMode m : ExecutionMode.values())
2630 >        for (Integer v1 : new Integer[] { 1, null })
2631 >        for (Integer v2 : new Integer[] { 2, null })
2632 >    {
2633 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
2634 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
2635 >        final FailingConsumer[] rs = new FailingConsumer[6];
2636 >        for (int i = 0; i < rs.length; i++) rs[i] = new FailingConsumer(m);
2637 >
2638 >        final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2639 >        final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2640 >        f.complete(v1);
2641 >        final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2642 >        final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2643 >        checkCompletedWithWrappedCFException(h0);
2644 >        checkCompletedWithWrappedCFException(h1);
2645 >        checkCompletedWithWrappedCFException(h2);
2646 >        checkCompletedWithWrappedCFException(h3);
2647 >        for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2648 >
2649 >        g.complete(v2);
2650 >
2651 >        // unspecified behavior - both source completions available
2652 >        final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2653 >        final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2654 >
2655 >        checkCompletedWithWrappedCFException(h4);
2656 >        assertTrue(Objects.equals(v1, rs[4].value) ||
2657 >                   Objects.equals(v2, rs[4].value));
2658 >        checkCompletedWithWrappedCFException(h5);
2659 >        assertTrue(Objects.equals(v1, rs[5].value) ||
2660 >                   Objects.equals(v2, rs[5].value));
2661 >
2662 >        checkCompletedNormally(f, v1);
2663 >        checkCompletedNormally(g, v2);
2664 >    }}
2665  
2666      /**
2667 <     * applyToEitherAsync result completes exceptionally if action does
2667 >     * runAfterEither result completes normally after normal completion
2668 >     * of either source
2669       */
2670 <    public void testApplyToEitherAsync3E() {
2671 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2672 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2673 <        FailingFunction r = new FailingFunction();
2674 <        CompletableFuture<Integer> g = f.applyToEitherAsync(f2, r, new ThreadExecutor());
2675 <        f.complete(one);
2676 <        checkCompletedWithWrappedCFException(g);
2677 <    }
2670 >    public void testRunAfterEither_normalCompletion() {
2671 >        for (ExecutionMode m : ExecutionMode.values())
2672 >        for (Integer v1 : new Integer[] { 1, null })
2673 >        for (Integer v2 : new Integer[] { 2, null })
2674 >    {
2675 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
2676 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
2677 >        final Noop[] rs = new Noop[6];
2678 >        for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2679 >
2680 >        final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2681 >        final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2682 >        checkIncomplete(h0);
2683 >        checkIncomplete(h1);
2684 >        rs[0].assertNotInvoked();
2685 >        rs[1].assertNotInvoked();
2686 >        f.complete(v1);
2687 >        checkCompletedNormally(h0, null);
2688 >        checkCompletedNormally(h1, null);
2689 >        rs[0].assertInvoked();
2690 >        rs[1].assertInvoked();
2691 >        final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2692 >        final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2693 >        checkCompletedNormally(h2, null);
2694 >        checkCompletedNormally(h3, null);
2695 >        rs[2].assertInvoked();
2696 >        rs[3].assertInvoked();
2697 >
2698 >        g.complete(v2);
2699 >
2700 >        final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2701 >        final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2702 >
2703 >        checkCompletedNormally(f, v1);
2704 >        checkCompletedNormally(g, v2);
2705 >        checkCompletedNormally(h0, null);
2706 >        checkCompletedNormally(h1, null);
2707 >        checkCompletedNormally(h2, null);
2708 >        checkCompletedNormally(h3, null);
2709 >        checkCompletedNormally(h4, null);
2710 >        checkCompletedNormally(h5, null);
2711 >        for (int i = 0; i < 6; i++) rs[i].assertInvoked();
2712 >    }}
2713  
2714      /**
2715 <     * applyToEitherAsync result completes exceptionally if either source cancelled
2715 >     * runAfterEither result completes exceptionally after exceptional
2716 >     * completion of either source
2717       */
2718 <    public void testApplyToEitherAsync4E() {
2719 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2720 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2721 <        CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
2722 <        assertTrue(f.cancel(true));
2723 <        checkCompletedWithWrappedCancellationException(g);
2718 >    public void testRunAfterEither_exceptionalCompletion() {
2719 >        for (ExecutionMode m : ExecutionMode.values())
2720 >        for (Integer v1 : new Integer[] { 1, null })
2721 >    {
2722 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
2723 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
2724 >        final CFException ex = new CFException();
2725 >        final Noop[] rs = new Noop[6];
2726 >        for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2727 >
2728 >        final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2729 >        final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2730 >        checkIncomplete(h0);
2731 >        checkIncomplete(h1);
2732 >        rs[0].assertNotInvoked();
2733 >        rs[1].assertNotInvoked();
2734 >        assertTrue(f.completeExceptionally(ex));
2735 >        checkCompletedWithWrappedException(h0, ex);
2736 >        checkCompletedWithWrappedException(h1, ex);
2737 >        final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2738 >        final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2739 >        checkCompletedWithWrappedException(h2, ex);
2740 >        checkCompletedWithWrappedException(h3, ex);
2741 >
2742 >        assertTrue(g.complete(v1));
2743 >
2744 >        // unspecified behavior - both source completions available
2745 >        final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2746 >        final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2747 >        try {
2748 >            assertNull(h4.join());
2749 >            rs[4].assertInvoked();
2750 >        } catch (CompletionException ok) {
2751 >            checkCompletedWithWrappedException(h4, ex);
2752 >            rs[4].assertNotInvoked();
2753 >        }
2754 >        try {
2755 >            assertNull(h5.join());
2756 >            rs[5].assertInvoked();
2757 >        } catch (CompletionException ok) {
2758 >            checkCompletedWithWrappedException(h5, ex);
2759 >            rs[5].assertNotInvoked();
2760 >        }
2761  
2762 <        f = new CompletableFuture<Integer>();
2763 <        f2 = new CompletableFuture<Integer>();
2764 <        assertTrue(f2.cancel(true));
2765 <        g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
2766 <        checkCompletedWithWrappedCancellationException(g);
2767 <    }
2762 >        checkCompletedExceptionally(f, ex);
2763 >        checkCompletedNormally(g, v1);
2764 >        checkCompletedWithWrappedException(h0, ex);
2765 >        checkCompletedWithWrappedException(h1, ex);
2766 >        checkCompletedWithWrappedException(h2, ex);
2767 >        checkCompletedWithWrappedException(h3, ex);
2768 >        checkCompletedWithWrappedException(h4, ex);
2769 >        for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2770 >    }}
2771 >
2772 >    public void testRunAfterEither_exceptionalCompletion2() {
2773 >        for (ExecutionMode m : ExecutionMode.values())
2774 >        for (boolean fFirst : new boolean[] { true, false })
2775 >        for (Integer v1 : new Integer[] { 1, null })
2776 >    {
2777 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
2778 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
2779 >        final CFException ex = new CFException();
2780 >        final Noop[] rs = new Noop[6];
2781 >        for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2782 >
2783 >        final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2784 >        final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2785 >        assertTrue( fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2786 >        assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2787 >        final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2788 >        final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2789  
2790 <    /**
2791 <     * acceptEitherAsync result completes normally after normal
2792 <     * completion of sources
2793 <     */
2794 <    public void testAcceptEitherAsyncE() {
2795 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2796 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2797 <        IncAction r = new IncAction();
2798 <        CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2799 <        f.complete(one);
2800 <        checkCompletedNormally(g, null);
2801 <        assertEquals(r.value, 2);
2790 >        // unspecified behavior - both source completions available
2791 >        try {
2792 >            assertEquals(null, h0.join());
2793 >            rs[0].assertInvoked();
2794 >        } catch (CompletionException ok) {
2795 >            checkCompletedWithWrappedException(h0, ex);
2796 >            rs[0].assertNotInvoked();
2797 >        }
2798 >        try {
2799 >            assertEquals(null, h1.join());
2800 >            rs[1].assertInvoked();
2801 >        } catch (CompletionException ok) {
2802 >            checkCompletedWithWrappedException(h1, ex);
2803 >            rs[1].assertNotInvoked();
2804 >        }
2805 >        try {
2806 >            assertEquals(null, h2.join());
2807 >            rs[2].assertInvoked();
2808 >        } catch (CompletionException ok) {
2809 >            checkCompletedWithWrappedException(h2, ex);
2810 >            rs[2].assertNotInvoked();
2811 >        }
2812 >        try {
2813 >            assertEquals(null, h3.join());
2814 >            rs[3].assertInvoked();
2815 >        } catch (CompletionException ok) {
2816 >            checkCompletedWithWrappedException(h3, ex);
2817 >            rs[3].assertNotInvoked();
2818 >        }
2819  
2820 <        r = new IncAction();
2821 <        f = new CompletableFuture<Integer>();
2822 <        f.complete(one);
2156 <        f2 = new CompletableFuture<Integer>();
2157 <        g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2158 <        checkCompletedNormally(g, null);
2159 <        assertEquals(r.value, 2);
2160 <    }
2820 >        checkCompletedNormally(f, v1);
2821 >        checkCompletedExceptionally(g, ex);
2822 >    }}
2823  
2824      /**
2825 <     * acceptEitherAsync result completes exceptionally after exceptional
2164 <     * completion of source
2825 >     * runAfterEither result completes exceptionally if either source cancelled
2826       */
2827 <    public void testAcceptEitherAsync2E() {
2828 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2829 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2830 <        IncAction r = new IncAction();
2831 <        CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2832 <        f.completeExceptionally(new CFException());
2833 <        checkCompletedWithWrappedCFException(g);
2827 >    public void testRunAfterEither_sourceCancelled() {
2828 >        for (ExecutionMode m : ExecutionMode.values())
2829 >        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2830 >        for (Integer v1 : new Integer[] { 1, null })
2831 >    {
2832 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
2833 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
2834 >        final Noop[] rs = new Noop[6];
2835 >        for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2836 >
2837 >        final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2838 >        final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2839 >        checkIncomplete(h0);
2840 >        checkIncomplete(h1);
2841 >        rs[0].assertNotInvoked();
2842 >        rs[1].assertNotInvoked();
2843 >        f.cancel(mayInterruptIfRunning);
2844 >        checkCompletedWithWrappedCancellationException(h0);
2845 >        checkCompletedWithWrappedCancellationException(h1);
2846 >        final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2847 >        final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2848 >        checkCompletedWithWrappedCancellationException(h2);
2849 >        checkCompletedWithWrappedCancellationException(h3);
2850 >
2851 >        assertTrue(g.complete(v1));
2852 >
2853 >        // unspecified behavior - both source completions available
2854 >        final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2855 >        final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2856 >        try {
2857 >            assertNull(h4.join());
2858 >            rs[4].assertInvoked();
2859 >        } catch (CompletionException ok) {
2860 >            checkCompletedWithWrappedCancellationException(h4);
2861 >            rs[4].assertNotInvoked();
2862 >        }
2863 >        try {
2864 >            assertNull(h5.join());
2865 >            rs[5].assertInvoked();
2866 >        } catch (CompletionException ok) {
2867 >            checkCompletedWithWrappedCancellationException(h5);
2868 >            rs[5].assertNotInvoked();
2869 >        }
2870  
2871 <        r = new IncAction();
2872 <        f = new CompletableFuture<Integer>();
2873 <        f2 = new CompletableFuture<Integer>();
2874 <        f2.completeExceptionally(new CFException());
2875 <        g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2876 <        f.complete(one);
2877 <        checkCompletedWithWrappedCFException(g);
2878 <    }
2871 >        checkCancelled(f);
2872 >        checkCompletedNormally(g, v1);
2873 >        checkCompletedWithWrappedCancellationException(h0);
2874 >        checkCompletedWithWrappedCancellationException(h1);
2875 >        checkCompletedWithWrappedCancellationException(h2);
2876 >        checkCompletedWithWrappedCancellationException(h3);
2877 >        for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2878 >    }}
2879  
2880      /**
2881 <     * acceptEitherAsync result completes exceptionally if action does
2881 >     * runAfterEither result completes exceptionally if action does
2882       */
2883 <    public void testAcceptEitherAsync3E() {
2884 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2885 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2886 <        FailingConsumer r = new FailingConsumer();
2887 <        CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2888 <        f.complete(one);
2889 <        checkCompletedWithWrappedCFException(g);
2890 <    }
2883 >    public void testRunAfterEither_actionFailed() {
2884 >        for (ExecutionMode m : ExecutionMode.values())
2885 >        for (Integer v1 : new Integer[] { 1, null })
2886 >        for (Integer v2 : new Integer[] { 2, null })
2887 >    {
2888 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
2889 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
2890 >        final FailingRunnable[] rs = new FailingRunnable[6];
2891 >        for (int i = 0; i < rs.length; i++) rs[i] = new FailingRunnable(m);
2892 >
2893 >        final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2894 >        final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2895 >        assertTrue(f.complete(v1));
2896 >        final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2897 >        final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2898 >        checkCompletedWithWrappedCFException(h0);
2899 >        checkCompletedWithWrappedCFException(h1);
2900 >        checkCompletedWithWrappedCFException(h2);
2901 >        checkCompletedWithWrappedCFException(h3);
2902 >        for (int i = 0; i < 4; i++) rs[i].assertInvoked();
2903 >        assertTrue(g.complete(v2));
2904 >        final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2905 >        final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2906 >        checkCompletedWithWrappedCFException(h4);
2907 >        checkCompletedWithWrappedCFException(h5);
2908 >
2909 >        checkCompletedNormally(f, v1);
2910 >        checkCompletedNormally(g, v2);
2911 >        for (int i = 0; i < 6; i++) rs[i].assertInvoked();
2912 >    }}
2913  
2914      /**
2915 <     * acceptEitherAsync result completes exceptionally if either
2197 <     * source cancelled
2198 <     */
2199 <    public void testAcceptEitherAsync4E() {
2200 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2201 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2202 <        IncAction r = new IncAction();
2203 <        CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2204 <        assertTrue(f.cancel(true));
2205 <        checkCompletedWithWrappedCancellationException(g);
2206 <
2207 <        r = new IncAction();
2208 <        f = new CompletableFuture<Integer>();
2209 <        f2 = new CompletableFuture<Integer>();
2210 <        assertTrue(f2.cancel(true));
2211 <        g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2212 <        checkCompletedWithWrappedCancellationException(g);
2213 <    }
2214 <
2215 <    /**
2216 <     * runAfterEitherAsync result completes normally after normal
2217 <     * completion of sources
2915 >     * thenCompose result completes normally after normal completion of source
2916       */
2917 <    public void testRunAfterEitherAsyncE() {
2918 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2919 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2920 <        Noop r = new Noop();
2921 <        CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2922 <        f.complete(one);
2923 <        checkCompletedNormally(g, null);
2924 <        assertTrue(r.ran);
2925 <
2926 <        r = new Noop();
2927 <        f = new CompletableFuture<Integer>();
2928 <        f.complete(one);
2929 <        f2 = new CompletableFuture<Integer>();
2930 <        g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2931 <        checkCompletedNormally(g, null);
2234 <        assertTrue(r.ran);
2235 <    }
2917 >    public void testThenCompose_normalCompletion() {
2918 >        for (ExecutionMode m : ExecutionMode.values())
2919 >        for (boolean createIncomplete : new boolean[] { true, false })
2920 >        for (Integer v1 : new Integer[] { 1, null })
2921 >    {
2922 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
2923 >        final CompletableFutureInc r = new CompletableFutureInc(m);
2924 >        if (!createIncomplete) assertTrue(f.complete(v1));
2925 >        final CompletableFuture<Integer> g = m.thenCompose(f, r);
2926 >        if (createIncomplete) assertTrue(f.complete(v1));
2927 >
2928 >        checkCompletedNormally(g, inc(v1));
2929 >        checkCompletedNormally(f, v1);
2930 >        r.assertValue(v1);
2931 >    }}
2932  
2933      /**
2934 <     * runAfterEitherAsync result completes exceptionally after exceptional
2934 >     * thenCompose result completes exceptionally after exceptional
2935       * completion of source
2936       */
2937 <    public void testRunAfterEitherAsync2E() {
2938 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2939 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2940 <        Noop r = new Noop();
2941 <        CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2942 <        f.completeExceptionally(new CFException());
2943 <        checkCompletedWithWrappedCFException(g);
2944 <
2945 <        r = new Noop();
2946 <        f = new CompletableFuture<Integer>();
2947 <        f2 = new CompletableFuture<Integer>();
2948 <        f2.completeExceptionally(new CFException());
2949 <        g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2950 <        f.complete(one);
2951 <        checkCompletedWithWrappedCFException(g);
2256 <    }
2937 >    public void testThenCompose_exceptionalCompletion() {
2938 >        for (ExecutionMode m : ExecutionMode.values())
2939 >        for (boolean createIncomplete : new boolean[] { true, false })
2940 >    {
2941 >        final CFException ex = new CFException();
2942 >        final CompletableFutureInc r = new CompletableFutureInc(m);
2943 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
2944 >        if (!createIncomplete) f.completeExceptionally(ex);
2945 >        final CompletableFuture<Integer> g = m.thenCompose(f, r);
2946 >        if (createIncomplete) f.completeExceptionally(ex);
2947 >
2948 >        checkCompletedWithWrappedException(g, ex);
2949 >        checkCompletedExceptionally(f, ex);
2950 >        r.assertNotInvoked();
2951 >    }}
2952  
2953      /**
2954 <     * runAfterEitherAsync result completes exceptionally if action does
2260 <     */
2261 <    public void testRunAfterEitherAsync3E() {
2262 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2263 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2264 <        FailingNoop r = new FailingNoop();
2265 <        CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2266 <        f.complete(one);
2267 <        checkCompletedWithWrappedCFException(g);
2268 <    }
2269 <
2270 <    /**
2271 <     * runAfterEitherAsync result completes exceptionally if either
2272 <     * source cancelled
2273 <     */
2274 <    public void testRunAfterEitherAsync4E() {
2275 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2276 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2277 <        Noop r = new Noop();
2278 <        CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2279 <        assertTrue(f.cancel(true));
2280 <        checkCompletedWithWrappedCancellationException(g);
2281 <
2282 <        r = new Noop();
2283 <        f = new CompletableFuture<Integer>();
2284 <        f2 = new CompletableFuture<Integer>();
2285 <        assertTrue(f2.cancel(true));
2286 <        g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2287 <        checkCompletedWithWrappedCancellationException(g);
2288 <    }
2289 <
2290 <    /**
2291 <     * thenComposeAsync result completes normally after normal
2292 <     * completion of source
2954 >     * thenCompose result completes exceptionally if action does
2955       */
2956 <    public void testThenComposeAsyncE() {
2957 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2958 <        CompletableFutureInc r = new CompletableFutureInc();
2959 <        CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
2960 <        f.complete(one);
2961 <        checkCompletedNormally(g, two);
2962 <    }
2956 >    public void testThenCompose_actionFailed() {
2957 >        for (ExecutionMode m : ExecutionMode.values())
2958 >        for (boolean createIncomplete : new boolean[] { true, false })
2959 >        for (Integer v1 : new Integer[] { 1, null })
2960 >    {
2961 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
2962 >        final FailingCompletableFutureFunction r
2963 >            = new FailingCompletableFutureFunction(m);
2964 >        if (!createIncomplete) assertTrue(f.complete(v1));
2965 >        final CompletableFuture<Integer> g = m.thenCompose(f, r);
2966 >        if (createIncomplete) assertTrue(f.complete(v1));
2967  
2302    /**
2303     * thenComposeAsync result completes exceptionally after
2304     * exceptional completion of source
2305     */
2306    public void testThenComposeAsync2E() {
2307        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2308        CompletableFutureInc r = new CompletableFutureInc();
2309        CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
2310        f.completeExceptionally(new CFException());
2968          checkCompletedWithWrappedCFException(g);
2969 <    }
2969 >        checkCompletedNormally(f, v1);
2970 >    }}
2971  
2972      /**
2973 <     * thenComposeAsync result completes exceptionally if action does
2973 >     * thenCompose result completes exceptionally if source cancelled
2974       */
2975 <    public void testThenComposeAsync3E() {
2976 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2977 <        FailingCompletableFutureFunction r = new FailingCompletableFutureFunction();
2978 <        CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
2979 <        f.complete(one);
2980 <        checkCompletedWithWrappedCFException(g);
2981 <    }
2975 >    public void testThenCompose_sourceCancelled() {
2976 >        for (ExecutionMode m : ExecutionMode.values())
2977 >        for (boolean createIncomplete : new boolean[] { true, false })
2978 >        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2979 >    {
2980 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
2981 >        final CompletableFutureInc r = new CompletableFutureInc(m);
2982 >        if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
2983 >        final CompletableFuture<Integer> g = m.thenCompose(f, r);
2984 >        if (createIncomplete) {
2985 >            checkIncomplete(g);
2986 >            assertTrue(f.cancel(mayInterruptIfRunning));
2987 >        }
2988  
2325    /**
2326     * thenComposeAsync result completes exceptionally if source cancelled
2327     */
2328    public void testThenComposeAsync4E() {
2329        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2330        CompletableFutureInc r = new CompletableFutureInc();
2331        CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
2332        assertTrue(f.cancel(true));
2989          checkCompletedWithWrappedCancellationException(g);
2990 <    }
2990 >        checkCancelled(f);
2991 >    }}
2992  
2993      // other static methods
2994  
# Line 2340 | Line 2997 | public class CompletableFutureTest exten
2997       * with the value null
2998       */
2999      public void testAllOf_empty() throws Exception {
3000 <        CompletableFuture<?> f = CompletableFuture.allOf();
3000 >        CompletableFuture<Void> f = CompletableFuture.allOf();
3001          checkCompletedNormally(f, null);
3002      }
3003  
3004      /**
3005 <     * allOf returns a future completed when all components complete
3005 >     * allOf returns a future completed normally with the value null
3006 >     * when all components complete normally
3007       */
3008 <    public void testAllOf() throws Exception {
3009 <        for (int k = 1; k < 20; ++k) {
3010 <            CompletableFuture[] fs = new CompletableFuture[k];
3011 <            for (int i = 0; i < k; ++i)
3012 <                fs[i] = new CompletableFuture<Integer>();
3008 >    public void testAllOf_normal() throws Exception {
3009 >        for (int k = 1; k < 10; k++) {
3010 >            CompletableFuture<Integer>[] fs
3011 >                = (CompletableFuture<Integer>[]) new CompletableFuture[k];
3012 >            for (int i = 0; i < k; i++)
3013 >                fs[i] = new CompletableFuture<>();
3014 >            CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3015 >            for (int i = 0; i < k; i++) {
3016 >                checkIncomplete(f);
3017 >                checkIncomplete(CompletableFuture.allOf(fs));
3018 >                fs[i].complete(one);
3019 >            }
3020 >            checkCompletedNormally(f, null);
3021 >            checkCompletedNormally(CompletableFuture.allOf(fs), null);
3022 >        }
3023 >    }
3024 >
3025 >    public void testAllOf_backwards() throws Exception {
3026 >        for (int k = 1; k < 10; k++) {
3027 >            CompletableFuture<Integer>[] fs
3028 >                = (CompletableFuture<Integer>[]) new CompletableFuture[k];
3029 >            for (int i = 0; i < k; i++)
3030 >                fs[i] = new CompletableFuture<>();
3031              CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3032 <            for (int i = 0; i < k; ++i) {
3032 >            for (int i = k - 1; i >= 0; i--) {
3033                  checkIncomplete(f);
3034 +                checkIncomplete(CompletableFuture.allOf(fs));
3035                  fs[i].complete(one);
3036              }
3037              checkCompletedNormally(f, null);
3038 +            checkCompletedNormally(CompletableFuture.allOf(fs), null);
3039 +        }
3040 +    }
3041 +
3042 +    public void testAllOf_exceptional() throws Exception {
3043 +        for (int k = 1; k < 10; k++) {
3044 +            CompletableFuture<Integer>[] fs
3045 +                = (CompletableFuture<Integer>[]) new CompletableFuture[k];
3046 +            CFException ex = new CFException();
3047 +            for (int i = 0; i < k; i++)
3048 +                fs[i] = new CompletableFuture<>();
3049 +            CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3050 +            for (int i = 0; i < k; i++) {
3051 +                checkIncomplete(f);
3052 +                checkIncomplete(CompletableFuture.allOf(fs));
3053 +                if (i != k/2) {
3054 +                    fs[i].complete(i);
3055 +                    checkCompletedNormally(fs[i], i);
3056 +                } else {
3057 +                    fs[i].completeExceptionally(ex);
3058 +                    checkCompletedExceptionally(fs[i], ex);
3059 +                }
3060 +            }
3061 +            checkCompletedWithWrappedException(f, ex);
3062 +            checkCompletedWithWrappedException(CompletableFuture.allOf(fs), ex);
3063          }
3064      }
3065  
# Line 2365 | Line 3067 | public class CompletableFutureTest exten
3067       * anyOf(no component futures) returns an incomplete future
3068       */
3069      public void testAnyOf_empty() throws Exception {
3070 <        CompletableFuture<?> f = CompletableFuture.anyOf();
3070 >        for (Integer v1 : new Integer[] { 1, null })
3071 >    {
3072 >        CompletableFuture<Object> f = CompletableFuture.anyOf();
3073          checkIncomplete(f);
3074 +
3075 +        f.complete(v1);
3076 +        checkCompletedNormally(f, v1);
3077 +    }}
3078 +
3079 +    /**
3080 +     * anyOf returns a future completed normally with a value when
3081 +     * a component future does
3082 +     */
3083 +    public void testAnyOf_normal() throws Exception {
3084 +        for (int k = 0; k < 10; k++) {
3085 +            CompletableFuture[] fs = new CompletableFuture[k];
3086 +            for (int i = 0; i < k; i++)
3087 +                fs[i] = new CompletableFuture<>();
3088 +            CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3089 +            checkIncomplete(f);
3090 +            for (int i = 0; i < k; i++) {
3091 +                fs[i].complete(i);
3092 +                checkCompletedNormally(f, 0);
3093 +                int x = (int) CompletableFuture.anyOf(fs).join();
3094 +                assertTrue(0 <= x && x <= i);
3095 +            }
3096 +        }
3097 +    }
3098 +    public void testAnyOf_normal_backwards() throws Exception {
3099 +        for (int k = 0; k < 10; k++) {
3100 +            CompletableFuture[] fs = new CompletableFuture[k];
3101 +            for (int i = 0; i < k; i++)
3102 +                fs[i] = new CompletableFuture<>();
3103 +            CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3104 +            checkIncomplete(f);
3105 +            for (int i = k - 1; i >= 0; i--) {
3106 +                fs[i].complete(i);
3107 +                checkCompletedNormally(f, k - 1);
3108 +                int x = (int) CompletableFuture.anyOf(fs).join();
3109 +                assertTrue(i <= x && x <= k - 1);
3110 +            }
3111 +        }
3112      }
3113  
3114      /**
3115 <     * allOf returns a future completed when any components complete
3115 >     * anyOf result completes exceptionally when any component does.
3116       */
3117 <    public void testAnyOf() throws Exception {
3118 <        for (int k = 1; k < 20; ++k) {
3117 >    public void testAnyOf_exceptional() throws Exception {
3118 >        for (int k = 0; k < 10; k++) {
3119              CompletableFuture[] fs = new CompletableFuture[k];
3120 <            for (int i = 0; i < k; ++i)
3121 <                fs[i] = new CompletableFuture<Integer>();
3120 >            CFException[] exs = new CFException[k];
3121 >            for (int i = 0; i < k; i++) {
3122 >                fs[i] = new CompletableFuture<>();
3123 >                exs[i] = new CFException();
3124 >            }
3125              CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3126              checkIncomplete(f);
3127 <            for (int i = 0; i < k; ++i) {
3128 <                fs[i].complete(one);
3129 <                checkCompletedNormally(f, one);
3127 >            for (int i = 0; i < k; i++) {
3128 >                fs[i].completeExceptionally(exs[i]);
3129 >                checkCompletedWithWrappedException(f, exs[0]);
3130 >                checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3131 >            }
3132 >        }
3133 >    }
3134 >
3135 >    public void testAnyOf_exceptional_backwards() throws Exception {
3136 >        for (int k = 0; k < 10; k++) {
3137 >            CompletableFuture[] fs = new CompletableFuture[k];
3138 >            CFException[] exs = new CFException[k];
3139 >            for (int i = 0; i < k; i++) {
3140 >                fs[i] = new CompletableFuture<>();
3141 >                exs[i] = new CFException();
3142 >            }
3143 >            CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3144 >            checkIncomplete(f);
3145 >            for (int i = k - 1; i >= 0; i--) {
3146 >                fs[i].completeExceptionally(exs[i]);
3147 >                checkCompletedWithWrappedException(f, exs[k - 1]);
3148 >                checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3149              }
3150          }
3151      }
# Line 2390 | Line 3154 | public class CompletableFutureTest exten
3154       * Completion methods throw NullPointerException with null arguments
3155       */
3156      public void testNPE() {
3157 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3158 <        CompletableFuture<Integer> g = new CompletableFuture<Integer>();
3159 <        CompletableFuture h;
3160 <        try { h = f.thenApply(null); } catch (NullPointerException ok) {}
3161 <        try { h = f.thenAccept(null); } catch (NullPointerException ok) {}
3162 <        try { h = f.thenRun(null); } catch (NullPointerException ok) {}
3163 <        try { h = f.thenCombine(g, null); } catch (NullPointerException ok) {}
3164 <        try { h = f.thenCombine(null, null); } catch (NullPointerException ok) {}
3165 <        try { h = f.applyToEither(g, null); } catch (NullPointerException ok) {}
3166 <        try { h = f.applyToEither(null, null); } catch (NullPointerException ok) {}
3167 <        try { h = f.thenAcceptBoth(g, null); } catch (NullPointerException ok) {}
3168 <        try { h = f.thenAcceptBoth(null, null); } catch (NullPointerException ok) {}
3169 <        try { h = f.runAfterEither(g, null); } catch (NullPointerException ok) {}
3170 <        try { h = f.runAfterEither(null, null); } catch (NullPointerException ok) {}
3171 <        try { h = f.runAfterBoth(g, null); } catch (NullPointerException ok) {}
3172 <        try { h = f.runAfterBoth(null, null); } catch (NullPointerException ok) {}
3173 <        try { h = f.exceptionally(null); } catch (NullPointerException ok) {}
3174 <        try { h = f.handle(null); } catch (NullPointerException ok) {}
3175 <        try { h = f.thenCompose(null); } catch (NullPointerException ok) {}
3176 <
3177 <        try { h = f.thenApplyAsync(null); } catch (NullPointerException ok) {}
3178 <        try { h = f.thenAcceptAsync(null); } catch (NullPointerException ok) {}
3179 <        try { h = f.thenRunAsync(null); } catch (NullPointerException ok) {}
3180 <        try { h = f.thenCombineAsync(g, null); } catch (NullPointerException ok) {}
3181 <        try { h = f.thenCombineAsync(null, null); } catch (NullPointerException ok) {}
3182 <        try { h = f.applyToEitherAsync(g, null); } catch (NullPointerException ok) {}
3183 <        try { h = f.applyToEitherAsync(null, null); } catch (NullPointerException ok) {}
3184 <        try { h = f.thenAcceptBothAsync(g, null); } catch (NullPointerException ok) {}
3185 <        try { h = f.thenAcceptBothAsync(null, null); } catch (NullPointerException ok) {}
3186 <        try { h = f.runAfterEitherAsync(g, null); } catch (NullPointerException ok) {}
3187 <        try { h = f.runAfterEitherAsync(null, null); } catch (NullPointerException ok) {}
3188 <        try { h = f.runAfterBothAsync(g, null); } catch (NullPointerException ok) {}
3189 <        try { h = f.runAfterBothAsync(null, null); } catch (NullPointerException ok) {}
3190 <
3157 >        CompletableFuture<Integer> f = new CompletableFuture<>();
3158 >        CompletableFuture<Integer> g = new CompletableFuture<>();
3159 >        CompletableFuture<Integer> nullFuture = (CompletableFuture<Integer>)null;
3160 >        CompletableFuture<?> h;
3161 >        ThreadExecutor exec = new ThreadExecutor();
3162 >
3163 >        Runnable[] throwingActions = {
3164 >            () -> CompletableFuture.supplyAsync(null),
3165 >            () -> CompletableFuture.supplyAsync(null, exec),
3166 >            () -> CompletableFuture.supplyAsync(new IntegerSupplier(ExecutionMode.SYNC, 42), null),
3167 >
3168 >            () -> CompletableFuture.runAsync(null),
3169 >            () -> CompletableFuture.runAsync(null, exec),
3170 >            () -> CompletableFuture.runAsync(() -> {}, null),
3171 >
3172 >            () -> f.completeExceptionally(null),
3173 >
3174 >            () -> f.thenApply(null),
3175 >            () -> f.thenApplyAsync(null),
3176 >            () -> f.thenApplyAsync((x) -> x, null),
3177 >            () -> f.thenApplyAsync(null, exec),
3178 >
3179 >            () -> f.thenAccept(null),
3180 >            () -> f.thenAcceptAsync(null),
3181 >            () -> f.thenAcceptAsync((x) -> {} , null),
3182 >            () -> f.thenAcceptAsync(null, exec),
3183 >
3184 >            () -> f.thenRun(null),
3185 >            () -> f.thenRunAsync(null),
3186 >            () -> f.thenRunAsync(() -> {} , null),
3187 >            () -> f.thenRunAsync(null, exec),
3188 >
3189 >            () -> f.thenCombine(g, null),
3190 >            () -> f.thenCombineAsync(g, null),
3191 >            () -> f.thenCombineAsync(g, null, exec),
3192 >            () -> f.thenCombine(nullFuture, (x, y) -> x),
3193 >            () -> f.thenCombineAsync(nullFuture, (x, y) -> x),
3194 >            () -> f.thenCombineAsync(nullFuture, (x, y) -> x, exec),
3195 >            () -> f.thenCombineAsync(g, (x, y) -> x, null),
3196 >
3197 >            () -> f.thenAcceptBoth(g, null),
3198 >            () -> f.thenAcceptBothAsync(g, null),
3199 >            () -> f.thenAcceptBothAsync(g, null, exec),
3200 >            () -> f.thenAcceptBoth(nullFuture, (x, y) -> {}),
3201 >            () -> f.thenAcceptBothAsync(nullFuture, (x, y) -> {}),
3202 >            () -> f.thenAcceptBothAsync(nullFuture, (x, y) -> {}, exec),
3203 >            () -> f.thenAcceptBothAsync(g, (x, y) -> {}, null),
3204 >
3205 >            () -> f.runAfterBoth(g, null),
3206 >            () -> f.runAfterBothAsync(g, null),
3207 >            () -> f.runAfterBothAsync(g, null, exec),
3208 >            () -> f.runAfterBoth(nullFuture, () -> {}),
3209 >            () -> f.runAfterBothAsync(nullFuture, () -> {}),
3210 >            () -> f.runAfterBothAsync(nullFuture, () -> {}, exec),
3211 >            () -> f.runAfterBothAsync(g, () -> {}, null),
3212 >
3213 >            () -> f.applyToEither(g, null),
3214 >            () -> f.applyToEitherAsync(g, null),
3215 >            () -> f.applyToEitherAsync(g, null, exec),
3216 >            () -> f.applyToEither(nullFuture, (x) -> x),
3217 >            () -> f.applyToEitherAsync(nullFuture, (x) -> x),
3218 >            () -> f.applyToEitherAsync(nullFuture, (x) -> x, exec),
3219 >            () -> f.applyToEitherAsync(g, (x) -> x, null),
3220 >
3221 >            () -> f.acceptEither(g, null),
3222 >            () -> f.acceptEitherAsync(g, null),
3223 >            () -> f.acceptEitherAsync(g, null, exec),
3224 >            () -> f.acceptEither(nullFuture, (x) -> {}),
3225 >            () -> f.acceptEitherAsync(nullFuture, (x) -> {}),
3226 >            () -> f.acceptEitherAsync(nullFuture, (x) -> {}, exec),
3227 >            () -> f.acceptEitherAsync(g, (x) -> {}, null),
3228 >
3229 >            () -> f.runAfterEither(g, null),
3230 >            () -> f.runAfterEitherAsync(g, null),
3231 >            () -> f.runAfterEitherAsync(g, null, exec),
3232 >            () -> f.runAfterEither(nullFuture, () -> {}),
3233 >            () -> f.runAfterEitherAsync(nullFuture, () -> {}),
3234 >            () -> f.runAfterEitherAsync(nullFuture, () -> {}, exec),
3235 >            () -> f.runAfterEitherAsync(g, () -> {}, null),
3236 >
3237 >            () -> f.thenCompose(null),
3238 >            () -> f.thenComposeAsync(null),
3239 >            () -> f.thenComposeAsync(new CompletableFutureInc(ExecutionMode.EXECUTOR), null),
3240 >            () -> f.thenComposeAsync(null, exec),
3241 >
3242 >            () -> f.exceptionally(null),
3243 >
3244 >            () -> f.handle(null),
3245 >
3246 >            () -> CompletableFuture.allOf((CompletableFuture<?>)null),
3247 >            () -> CompletableFuture.allOf((CompletableFuture<?>[])null),
3248 >            () -> CompletableFuture.allOf(f, null),
3249 >            () -> CompletableFuture.allOf(null, f),
3250 >
3251 >            () -> CompletableFuture.anyOf((CompletableFuture<?>)null),
3252 >            () -> CompletableFuture.anyOf((CompletableFuture<?>[])null),
3253 >            () -> CompletableFuture.anyOf(f, null),
3254 >            () -> CompletableFuture.anyOf(null, f),
3255 >
3256 >            () -> f.obtrudeException(null),
3257 >        };
3258 >
3259 >        assertThrows(NullPointerException.class, throwingActions);
3260 >        assertEquals(0, exec.count.get());
3261 >    }
3262 >
3263 >    /**
3264 >     * toCompletableFuture returns this CompletableFuture.
3265 >     */
3266 >    public void testToCompletableFuture() {
3267 >        CompletableFuture<Integer> f = new CompletableFuture<>();
3268 >        assertSame(f, f.toCompletableFuture());
3269      }
3270  
3271 +    //--- tests of implementation details; not part of official tck ---
3272 +
3273 +    Object resultOf(CompletableFuture<?> f) {
3274 +        try {
3275 +            java.lang.reflect.Field resultField
3276 +                = CompletableFuture.class.getDeclaredField("result");
3277 +            resultField.setAccessible(true);
3278 +            return resultField.get(f);
3279 +        } catch (Throwable t) { throw new AssertionError(t); }
3280 +    }
3281 +
3282 +    public void testExceptionPropagationReusesResultObject() {
3283 +        if (!testImplementationDetails) return;
3284 +        for (ExecutionMode m : ExecutionMode.values())
3285 +    {
3286 +        final CFException ex = new CFException();
3287 +        final CompletableFuture<Integer> v42 = CompletableFuture.completedFuture(42);
3288 +        final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3289 +
3290 +        List<Function<CompletableFuture<Integer>, CompletableFuture<?>>> funs
3291 +            = new ArrayList<>();
3292 +
3293 +        funs.add((y) -> m.thenRun(y, new Noop(m)));
3294 +        funs.add((y) -> m.thenAccept(y, new NoopConsumer(m)));
3295 +        funs.add((y) -> m.thenApply(y, new IncFunction(m)));
3296 +
3297 +        funs.add((y) -> m.runAfterEither(y, incomplete, new Noop(m)));
3298 +        funs.add((y) -> m.acceptEither(y, incomplete, new NoopConsumer(m)));
3299 +        funs.add((y) -> m.applyToEither(y, incomplete, new IncFunction(m)));
3300 +
3301 +        funs.add((y) -> m.runAfterBoth(y, v42, new Noop(m)));
3302 +        funs.add((y) -> m.thenAcceptBoth(y, v42, new SubtractAction(m)));
3303 +        funs.add((y) -> m.thenCombine(y, v42, new SubtractFunction(m)));
3304 +
3305 +        funs.add((y) -> m.whenComplete(y, (Integer x, Throwable t) -> {}));
3306 +
3307 +        funs.add((y) -> m.thenCompose(y, new CompletableFutureInc(m)));
3308 +
3309 +        funs.add((y) -> CompletableFuture.allOf(new CompletableFuture<?>[] {y, v42}));
3310 +        funs.add((y) -> CompletableFuture.anyOf(new CompletableFuture<?>[] {y, incomplete}));
3311 +
3312 +        for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3313 +                 fun : funs) {
3314 +            CompletableFuture<Integer> f = new CompletableFuture<>();
3315 +            f.completeExceptionally(ex);
3316 +            CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
3317 +            checkCompletedWithWrappedException(src, ex);
3318 +            CompletableFuture<?> dep = fun.apply(src);
3319 +            checkCompletedWithWrappedException(dep, ex);
3320 +            assertSame(resultOf(src), resultOf(dep));
3321 +        }
3322 +
3323 +        for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3324 +                 fun : funs) {
3325 +            CompletableFuture<Integer> f = new CompletableFuture<>();
3326 +            CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
3327 +            CompletableFuture<?> dep = fun.apply(src);
3328 +            f.completeExceptionally(ex);
3329 +            checkCompletedWithWrappedException(src, ex);
3330 +            checkCompletedWithWrappedException(dep, ex);
3331 +            assertSame(resultOf(src), resultOf(dep));
3332 +        }
3333 +
3334 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3335 +        for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3336 +                 fun : funs) {
3337 +            CompletableFuture<Integer> f = new CompletableFuture<>();
3338 +            f.cancel(mayInterruptIfRunning);
3339 +            checkCancelled(f);
3340 +            CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
3341 +            checkCompletedWithWrappedCancellationException(src);
3342 +            CompletableFuture<?> dep = fun.apply(src);
3343 +            checkCompletedWithWrappedCancellationException(dep);
3344 +            assertSame(resultOf(src), resultOf(dep));
3345 +        }
3346 +
3347 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3348 +        for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3349 +                 fun : funs) {
3350 +            CompletableFuture<Integer> f = new CompletableFuture<>();
3351 +            CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
3352 +            CompletableFuture<?> dep = fun.apply(src);
3353 +            f.cancel(mayInterruptIfRunning);
3354 +            checkCancelled(f);
3355 +            checkCompletedWithWrappedCancellationException(src);
3356 +            checkCompletedWithWrappedCancellationException(dep);
3357 +            assertSame(resultOf(src), resultOf(dep));
3358 +        }
3359 +    }}
3360  
3361   }

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