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Comparing jsr166/src/test/tck/CompletableFutureTest.java (file contents):
Revision 1.48 by jsr166, Mon Jun 2 19:07:14 2014 UTC vs.
Revision 1.95 by jsr166, Wed Jun 25 15:32:10 2014 UTC

# Line 57 | Line 57 | public class CompletableFutureTest exten
57      }
58  
59      <T> void checkCompletedNormally(CompletableFuture<T> f, T value) {
60 <        try {
61 <            assertEquals(value, f.get(LONG_DELAY_MS, MILLISECONDS));
62 <        } catch (Throwable fail) { threadUnexpectedException(fail); }
60 >        checkTimedGet(f, value);
61 >
62          try {
63              assertEquals(value, f.join());
64          } catch (Throwable fail) { threadUnexpectedException(fail); }
# Line 76 | Line 75 | public class CompletableFutureTest exten
75      }
76  
77      void checkCompletedWithWrappedCFException(CompletableFuture<?> f) {
78 +        long startTime = System.nanoTime();
79 +        long timeoutMillis = LONG_DELAY_MS;
80          try {
81 <            f.get(LONG_DELAY_MS, MILLISECONDS);
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 105 | Line 108 | public class CompletableFutureTest exten
108          assertTrue(f.toString().contains("[Completed exceptionally]"));
109      }
110  
111 <    void checkCompletedWithWrappedCFException(CompletableFuture<?> f,
112 <                                              CFException ex) {
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(LONG_DELAY_MS, MILLISECONDS);
116 >            f.get(timeoutMillis, MILLISECONDS);
117              shouldThrow();
118          } catch (ExecutionException success) {
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();
# Line 131 | Line 138 | public class CompletableFutureTest exten
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(LONG_DELAY_MS, MILLISECONDS);
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 162 | Line 194 | public class CompletableFutureTest exten
194      }
195  
196      void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) {
197 +        long startTime = System.nanoTime();
198 +        long timeoutMillis = LONG_DELAY_MS;
199          try {
200 <            f.get(LONG_DELAY_MS, MILLISECONDS);
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 206 | Line 242 | public class CompletableFutureTest exten
242       * isCancelled, join, get, and getNow
243       */
244      public void testComplete() {
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
# Line 218 | Line 257 | public class CompletableFutureTest exten
257       */
258      public void testCompleteExceptionally() {
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 228 | Line 268 | public class CompletableFutureTest exten
268       * methods isDone, isCancelled, join, get, and getNow
269       */
270      public void testCancel() {
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
# Line 240 | Line 283 | public class CompletableFutureTest exten
283      public void testObtrudeValue() {
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);
# Line 261 | Line 304 | public class CompletableFutureTest exten
304       * obtrudeException forces completion with given exception
305       */
306      public void testObtrudeException() {
307 <        CompletableFuture<Integer> f = new CompletableFuture<>();
308 <        checkIncomplete(f);
309 <        f.complete(one);
310 <        checkCompletedNormally(f, one);
311 <        f.obtrudeException(new CFException());
269 <        checkCompletedWithWrappedCFException(f);
307 >        for (Integer v1 : new Integer[] { 1, null })
308 >    {
309 >        CFException ex;
310 >        CompletableFuture<Integer> f;
311 >
312          f = new CompletableFuture<>();
313 <        f.obtrudeException(new CFException());
314 <        checkCompletedWithWrappedCFException(f);
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 <        f.obtrudeValue(four);
333 <        checkCompletedNormally(f, four);
334 <        f.obtrudeException(new CFException());
335 <        checkCompletedWithWrappedCFException(f);
279 <    }
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 +        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 <        CompletableFuture g = f.thenRun(new Noop());
346 >        final CompletableFuture<Void> g = m.thenRun(f, new Noop(m));
347          assertEquals(1, f.getNumberOfDependents());
348          assertEquals(0, g.getNumberOfDependents());
349 <        CompletableFuture h = f.thenRun(new Noop());
349 >        final CompletableFuture<Void> h = m.thenRun(f, new Noop(m));
350          assertEquals(2, f.getNumberOfDependents());
351 <        f.complete(1);
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 <    }
357 >        assertEquals(0, h.getNumberOfDependents());
358 >    }}
359  
360      /**
361       * toString indicates current completion state
# Line 304 | 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 320 | Line 388 | public class CompletableFutureTest exten
388          checkCompletedNormally(f, "test");
389      }
390  
391 <    // Choose non-commutative actions for better coverage
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 <    // A non-commutative function that handles and produces null values as well.
404 <    static Integer subtract(Integer x, Integer y) {
405 <        return (x == null && y == null) ? null :
406 <            ((x == null) ? 42 : x.intValue())
407 <            - ((y == null) ? 99 : y.intValue());
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 >
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.
# Line 334 | Line 428 | public class CompletableFutureTest exten
428          return (x == null) ? null : x + 1;
429      }
430  
431 <    static final Supplier<Integer> supplyOne =
432 <        () -> Integer.valueOf(1);
433 <    static final Function<Integer, Integer> inc =
434 <        (Integer x) -> Integer.valueOf(x.intValue() + 1);
341 <    static final BiFunction<Integer, Integer, Integer> subtract =
342 <        (Integer x, Integer y) -> subtract(x, y);
343 <    static final class IncAction implements Consumer<Integer> {
344 <        int invocationCount = 0;
345 <        Integer value;
431 >    class NoopConsumer extends CheckedIntegerAction
432 >        implements Consumer<Integer>
433 >    {
434 >        NoopConsumer(ExecutionMode m) { super(m); }
435          public void accept(Integer x) {
436 <            invocationCount++;
437 <            value = inc(x);
436 >            invoked();
437 >            value = x;
438          }
439      }
440 <    static final class IncFunction implements Function<Integer,Integer> {
441 <        int invocationCount = 0;
442 <        Integer value;
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 <            invocationCount++;
446 >            invoked();
447              return value = inc(x);
448          }
449      }
450 <    static final class SubtractAction implements BiConsumer<Integer, Integer> {
451 <        int invocationCount = 0;
452 <        Integer value;
453 <        // Check this action was invoked exactly once when result is computed.
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 <            invocationCount++;
464 >            invoked();
465              value = subtract(x, y);
466          }
467      }
468 <    static final class SubtractFunction implements BiFunction<Integer, Integer, Integer> {
469 <        int invocationCount = 0;
470 <        Integer value;
471 <        // Check this action was invoked exactly once when result is computed.
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 <            invocationCount++;
474 >            invoked();
475              return value = subtract(x, y);
476          }
477      }
478 <    static final class Noop implements Runnable {
479 <        int invocationCount = 0;
478 >
479 >    class Noop extends CheckedAction implements Runnable {
480 >        Noop(ExecutionMode m) { super(m); }
481          public void run() {
482 <            invocationCount++;
482 >            invoked();
483          }
484      }
485  
486 <    static final class FailingSupplier implements Supplier<Integer> {
487 <        int invocationCount = 0;
486 >    class FailingSupplier extends CheckedAction
487 >        implements Supplier<Integer>
488 >    {
489 >        FailingSupplier(ExecutionMode m) { super(m); }
490          public Integer get() {
491 <            invocationCount++;
491 >            invoked();
492              throw new CFException();
493          }
494      }
495 <    static final class FailingConsumer implements Consumer<Integer> {
496 <        int invocationCount = 0;
495 >
496 >    class FailingConsumer extends CheckedIntegerAction
497 >        implements Consumer<Integer>
498 >    {
499 >        FailingConsumer(ExecutionMode m) { super(m); }
500          public void accept(Integer x) {
501 <            invocationCount++;
501 >            invoked();
502 >            value = x;
503              throw new CFException();
504          }
505      }
506 <    static final class FailingBiConsumer implements BiConsumer<Integer, Integer> {
507 <        int invocationCount = 0;
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 <            invocationCount++;
512 >            invoked();
513 >            value = subtract(x, y);
514              throw new CFException();
515          }
516      }
517 <    static final class FailingFunction implements Function<Integer, Integer> {
518 <        int invocationCount = 0;
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 <            invocationCount++;
523 >            invoked();
524 >            value = x;
525              throw new CFException();
526          }
527      }
528 <    static final class FailingBiFunction implements BiFunction<Integer, Integer, Integer> {
529 <        int invocationCount = 0;
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 <            invocationCount++;
534 >            invoked();
535 >            value = subtract(x, y);
536              throw new CFException();
537          }
538      }
539 <    static final class FailingNoop implements Runnable {
540 <        int invocationCount = 0;
539 >
540 >    class FailingRunnable extends CheckedAction implements Runnable {
541 >        FailingRunnable(ExecutionMode m) { super(m); }
542          public void run() {
543 <            invocationCount++;
543 >            invoked();
544              throw new CFException();
545          }
546      }
547  
548 <    static final class CompletableFutureInc
549 <        implements Function<Integer, CompletableFuture<Integer>> {
550 <        int invocationCount = 0;
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 <            invocationCount++;
554 >            invoked();
555 >            value = x;
556              CompletableFuture<Integer> f = new CompletableFuture<>();
557 <            f.complete(inc(x));
557 >            assertTrue(f.complete(inc(x)));
558              return f;
559          }
560      }
561  
562 <    static final class FailingCompletableFutureFunction
563 <        implements Function<Integer, CompletableFuture<Integer>> {
564 <        int invocationCount = 0;
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 <            invocationCount++;
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 <        AtomicInteger count = new AtomicInteger(0);
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              count.getAndIncrement();
583 <            new Thread(r).start();
583 >            new Thread(tg, r).start();
584          }
585      }
586  
587      /**
588       * Permits the testing of parallel code for the 3 different
589 <     * execution modes without repeating all the testing code.
589 >     * execution modes without copy/pasting all the test methods.
590       */
591      enum ExecutionMode {
592 <        DEFAULT {
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);
# Line 531 | Line 668 | public class CompletableFutureTest exten
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);
# Line 596 | Line 739 | public class CompletableFutureTest exten
739  
740          EXECUTOR {
741              public void checkExecutionMode() {
742 <                //TODO
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) {
# Line 662 | Line 811 | public class CompletableFutureTest exten
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
# Line 711 | Line 862 | public class CompletableFutureTest exten
862      {
863          final AtomicInteger a = new AtomicInteger(0);
864          final CompletableFuture<Integer> f = new CompletableFuture<>();
865 <        if (!createIncomplete) f.complete(v1);
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) f.complete(v1);
872 >        if (createIncomplete) assertTrue(f.complete(v1));
873  
874          checkCompletedNormally(g, v1);
875          checkCompletedNormally(f, v1);
876          assertEquals(0, a.get());
877      }}
878  
728
879      /**
880       * exceptionally action completes with function value on source
881       * exception
# Line 740 | Line 890 | public class CompletableFutureTest exten
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;
# Line 761 | Line 912 | public class CompletableFutureTest exten
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 +        checkCompletedWithWrappedCancellationException(g);
1004 +        checkCancelled(f);
1005 +        assertEquals(1, a.get());
1006 +    }}
1007 +
1008 +    /**
1009 +     * If a whenComplete action throws an exception when triggered by
1010 +     * a normal completion, it completes exceptionally
1011 +     */
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 <        checkCompletedWithWrappedCFException(g, ex2);
1064 >        checkCompletedWithWrappedException(g, ex1);
1065 >        checkCompletedExceptionally(f, ex1);
1066          assertEquals(1, a.get());
1067      }}
1068  
# Line 782 | Line 1077 | public class CompletableFutureTest exten
1077      {
1078          final CompletableFuture<Integer> f = new CompletableFuture<>();
1079          final AtomicInteger a = new AtomicInteger(0);
1080 <        if (!createIncomplete) f.complete(v1);
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) f.complete(v1);
1090 >        if (createIncomplete) assertTrue(f.complete(v1));
1091  
1092          checkCompletedNormally(g, inc(v1));
1093          checkCompletedNormally(f, v1);
# Line 814 | Line 1110 | public class CompletableFutureTest exten
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();
# Line 822 | Line 1119 | public class CompletableFutureTest exten
1119          if (createIncomplete) f.completeExceptionally(ex);
1120  
1121          checkCompletedNormally(g, v1);
1122 <        checkCompletedWithWrappedCFException(f, ex);
1122 >        checkCompletedExceptionally(f, ex);
1123          assertEquals(1, a.get());
1124      }}
1125  
# Line 842 | Line 1139 | public class CompletableFutureTest exten
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();
# Line 869 | Line 1167 | public class CompletableFutureTest exten
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();
# Line 876 | Line 1175 | public class CompletableFutureTest exten
1175              });
1176          if (createIncomplete) f.completeExceptionally(ex1);
1177  
1178 <        checkCompletedWithWrappedCFException(g, ex2);
1179 <        checkCompletedWithWrappedCFException(f, ex1);
1178 >        checkCompletedWithWrappedException(g, ex2);
1179 >        checkCompletedExceptionally(f, ex1);
1180          assertEquals(1, a.get());
1181      }}
1182  
# Line 889 | Line 1188 | public class CompletableFutureTest exten
1188          final CompletableFuture<Integer> f = new CompletableFuture<>();
1189          final AtomicInteger a = new AtomicInteger(0);
1190          final CFException ex = new CFException();
1191 <        if (!createIncomplete) f.complete(v1);
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) f.complete(v1);
1201 >        if (createIncomplete) assertTrue(f.complete(v1));
1202  
1203 <        checkCompletedWithWrappedCFException(g, ex);
1203 >        checkCompletedWithWrappedException(g, ex);
1204          checkCompletedNormally(f, v1);
1205          assertEquals(1, a.get());
1206      }}
# Line 908 | Line 1208 | public class CompletableFutureTest exten
1208      /**
1209       * runAsync completes after running Runnable
1210       */
1211 <    public void testRunAsync() {
1212 <        Noop r = new Noop();
1213 <        CompletableFuture<Void> f = CompletableFuture.runAsync(r);
1214 <        assertNull(f.join());
1215 <        assertEquals(1, r.invocationCount);
1216 <        checkCompletedNormally(f, null);
1217 <    }
1218 <
1219 <    /**
920 <     * runAsync with executor completes after running Runnable
921 <     */
922 <    public void testRunAsync2() {
923 <        Noop r = new Noop();
924 <        ThreadExecutor exec = new ThreadExecutor();
925 <        CompletableFuture<Void> f = CompletableFuture.runAsync(r, exec);
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());
927        assertEquals(1, r.invocationCount);
1221          checkCompletedNormally(f, null);
1222 <        assertEquals(1, exec.count.get());
1223 <    }
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 <        assertEquals(1, r.invocationCount);
1239 <    }
1238 >        r.assertInvoked();
1239 >    }}
1240  
1241      /**
1242       * supplyAsync completes with result of supplier
1243       */
1244 <    public void testSupplyAsync() {
1245 <        CompletableFuture<Integer> f;
1246 <        f = CompletableFuture.supplyAsync(supplyOne);
1247 <        assertEquals(f.join(), one);
1248 <        checkCompletedNormally(f, one);
1249 <    }
1250 <
1251 <    /**
1252 <     * supplyAsync with executor completes with result of supplier
1253 <     */
1254 <    public void testSupplyAsync2() {
1255 <        CompletableFuture<Integer> f;
1256 <        f = CompletableFuture.supplyAsync(supplyOne, new ThreadExecutor());
1257 <        assertEquals(f.join(), one);
959 <        checkCompletedNormally(f, one);
960 <    }
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 <        assertEquals(1, r.invocationCount);
1273 <    }
1272 >        r.assertInvoked();
1273 >    }}
1274  
1275      // seq completion methods
1276  
# Line 976 | Line 1279 | public class CompletableFutureTest exten
1279       */
1280      public void testThenRun_normalCompletion() {
1281          for (ExecutionMode m : ExecutionMode.values())
979        for (boolean createIncomplete : new boolean[] { true, false })
1282          for (Integer v1 : new Integer[] { 1, null })
1283      {
1284          final CompletableFuture<Integer> f = new CompletableFuture<>();
1285 <        final Noop r = new Noop();
1286 <        if (!createIncomplete) f.complete(v1);
985 <        final CompletableFuture<Void> g = m.thenRun(f, r);
986 <        if (createIncomplete) f.complete(v1);
1285 >        final Noop[] rs = new Noop[6];
1286 >        for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1287  
1288 <        checkCompletedNormally(g, null);
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 <        assertEquals(1, r.invocationCount);
1306 >        for (Noop r : rs) r.assertInvoked();
1307      }}
1308  
1309      /**
# Line 996 | Line 1312 | public class CompletableFutureTest exten
1312       */
1313      public void testThenRun_exceptionalCompletion() {
1314          for (ExecutionMode m : ExecutionMode.values())
999        for (boolean createIncomplete : new boolean[] { true, false })
1315      {
1316          final CFException ex = new CFException();
1317          final CompletableFuture<Integer> f = new CompletableFuture<>();
1318 <        final Noop r = new Noop();
1319 <        if (!createIncomplete) f.completeExceptionally(ex);
1005 <        final CompletableFuture<Void> g = m.thenRun(f, r);
1006 <        if (createIncomplete) f.completeExceptionally(ex);
1318 >        final Noop[] rs = new Noop[6];
1319 >        for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1320  
1321 <        checkCompletedWithWrappedCFException(g, ex);
1322 <        checkCompletedWithWrappedCFException(f, ex);
1323 <        assertEquals(0, r.invocationCount);
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      /**
# Line 1015 | Line 1344 | public class CompletableFutureTest exten
1344       */
1345      public void testThenRun_sourceCancelled() {
1346          for (ExecutionMode m : ExecutionMode.values())
1018        for (boolean createIncomplete : new boolean[] { true, false })
1347          for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1348      {
1349          final CompletableFuture<Integer> f = new CompletableFuture<>();
1350 <        final Noop r = new Noop();
1351 <        if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1024 <        final CompletableFuture<Void> g = f.thenRun(r);
1025 <        if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1350 >        final Noop[] rs = new Noop[6];
1351 >        for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1352  
1353 <        checkCompletedWithWrappedCancellationException(g);
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 <        assertEquals(0, r.invocationCount);
1371 >        for (Noop r : rs) r.assertNotInvoked();
1372      }}
1373  
1374      /**
# Line 1034 | Line 1376 | public class CompletableFutureTest exten
1376       */
1377      public void testThenRun_actionFailed() {
1378          for (ExecutionMode m : ExecutionMode.values())
1037        for (boolean createIncomplete : new boolean[] { true, false })
1379          for (Integer v1 : new Integer[] { 1, null })
1380      {
1381          final CompletableFuture<Integer> f = new CompletableFuture<>();
1382 <        final FailingNoop r = new FailingNoop();
1383 <        if (!createIncomplete) f.complete(v1);
1043 <        final CompletableFuture<Void> g = f.thenRun(r);
1044 <        if (createIncomplete) f.complete(v1);
1382 >        final FailingRunnable[] rs = new FailingRunnable[6];
1383 >        for (int i = 0; i < rs.length; i++) rs[i] = new FailingRunnable(m);
1384  
1385 <        checkCompletedWithWrappedCFException(g);
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() {
1054 <        CompletableFuture<Integer> f = new CompletableFuture<>();
1055 <        CompletableFuture<Integer> g = f.thenApply(inc);
1056 <        f.complete(one);
1057 <        checkCompletedNormally(g, two);
1058 <    }
1059 <
1060 <    /**
1061 <     * thenApply result completes exceptionally after exceptional
1062 <     * completion of source
1063 <     */
1064 <    public void testThenApply2() {
1065 <        CompletableFuture<Integer> f = new CompletableFuture<>();
1066 <        CompletableFuture<Integer> g = f.thenApply(inc);
1067 <        f.completeExceptionally(new CFException());
1068 <        checkCompletedWithWrappedCFException(g);
1069 <    }
1070 <
1071 <    /**
1072 <     * thenApply result completes exceptionally if action does
1073 <     */
1074 <    public void testThenApply3() {
1075 <        CompletableFuture<Integer> f = new CompletableFuture<>();
1076 <        CompletableFuture<Integer> g = f.thenApply(new FailingFunction());
1077 <        f.complete(one);
1078 <        checkCompletedWithWrappedCFException(g);
1079 <    }
1080 <
1081 <    /**
1082 <     * thenApply result completes exceptionally if source cancelled
1083 <     */
1084 <    public void testThenApply4() {
1085 <        CompletableFuture<Integer> f = new CompletableFuture<>();
1086 <        CompletableFuture<Integer> g = f.thenApply(inc);
1087 <        assertTrue(f.cancel(true));
1088 <        checkCompletedWithWrappedCancellationException(g);
1089 <    }
1090 <
1091 <    /**
1092 <     * thenAccept result completes normally after normal completion of source
1093 <     */
1094 <    public void testThenAccept() {
1095 <        CompletableFuture<Integer> f = new CompletableFuture<>();
1096 <        IncAction r = new IncAction();
1097 <        CompletableFuture<Void> g = f.thenAccept(r);
1098 <        f.complete(one);
1099 <        checkCompletedNormally(g, null);
1100 <        assertEquals(r.value, (Integer) 2);
1101 <    }
1102 <
1103 <    /**
1104 <     * thenAccept result completes exceptionally after exceptional
1105 <     * completion of source
1106 <     */
1107 <    public void testThenAccept2() {
1108 <        CompletableFuture<Integer> f = new CompletableFuture<>();
1109 <        IncAction r = new IncAction();
1110 <        CompletableFuture<Void> g = f.thenAccept(r);
1111 <        f.completeExceptionally(new CFException());
1112 <        checkCompletedWithWrappedCFException(g);
1113 <    }
1114 <
1115 <    /**
1116 <     * thenAccept result completes exceptionally if action does
1117 <     */
1118 <    public void testThenAccept3() {
1119 <        CompletableFuture<Integer> f = new CompletableFuture<>();
1120 <        FailingConsumer r = new FailingConsumer();
1121 <        CompletableFuture<Void> g = f.thenAccept(r);
1122 <        f.complete(one);
1123 <        checkCompletedWithWrappedCFException(g);
1124 <        assertEquals(1, r.invocationCount);
1125 <    }
1126 <
1127 <    /**
1128 <     * thenAccept result completes exceptionally if source cancelled
1129 <     */
1130 <    public void testThenAccept4() {
1131 <        CompletableFuture<Integer> f = new CompletableFuture<>();
1132 <        IncAction r = new IncAction();
1133 <        CompletableFuture<Void> g = f.thenAccept(r);
1134 <        assertTrue(f.cancel(true));
1135 <        checkCompletedWithWrappedCancellationException(g);
1136 <    }
1137 <
1138 <    /**
1139 <     * thenCombine result completes normally after normal completion
1140 <     * of sources
1141 <     */
1142 <    public void testThenCombine_normalCompletion1() {
1143 <        for (boolean createIncomplete : new boolean[] { true, false })
1144 <        for (boolean fFirst : new boolean[] { true, false })
1405 >    public void testThenApply_normalCompletion() {
1406          for (ExecutionMode m : ExecutionMode.values())
1407          for (Integer v1 : new Integer[] { 1, null })
1147        for (Integer v2 : new Integer[] { 2, null })
1408      {
1409          final CompletableFuture<Integer> f = new CompletableFuture<>();
1410 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
1411 <        final SubtractFunction r = new SubtractFunction();
1412 <        CompletableFuture<Integer> h = null;
1413 <        if (createIncomplete) h = m.thenCombine(f, g, r);
1414 <
1415 <        if (fFirst)
1416 <            f.complete(v1);
1417 <        else
1418 <            g.complete(v2);
1419 <        if (createIncomplete) checkIncomplete(h);
1160 <        assertEquals(0, r.invocationCount);
1161 <        if (!fFirst)
1162 <            f.complete(v1);
1163 <        else
1164 <            g.complete(v2);
1165 <        if (!createIncomplete) h = m.thenCombine(f, g, r);
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(h, subtract(v1, v2));
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 <        checkCompletedNormally(g, v2);
1170 <        assertEquals(1, r.invocationCount);
1426 >        for (IncFunction r : rs) r.assertValue(inc(v1));
1427      }}
1428  
1429      /**
1430 <     * thenCombine result completes exceptionally after exceptional
1431 <     * completion of either source
1430 >     * thenApply result completes exceptionally after exceptional
1431 >     * completion of source
1432       */
1433 <    public void testThenCombine_exceptionalCompletion1() {
1178 <        for (ExecutionMode m : ExecutionMode.values())
1179 <        for (Integer v1 : new Integer[] { 1, null })
1180 <    {
1181 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
1182 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
1183 <        final SubtractFunction r = new SubtractFunction();
1184 <        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1185 <        final CFException ex = new CFException();
1186 <
1187 <        f.completeExceptionally(ex);
1188 <        checkIncomplete(h);
1189 <        g.complete(v1);
1190 <
1191 <        checkCompletedWithWrappedCFException(h, ex);
1192 <        checkCompletedWithWrappedCFException(f, ex);
1193 <        assertEquals(0, r.invocationCount);
1194 <        checkCompletedNormally(g, v1);
1195 <    }}
1196 <
1197 <    public void testThenCombine_exceptionalCompletion2() {
1198 <        for (ExecutionMode m : ExecutionMode.values())
1199 <        for (Integer v1 : new Integer[] { 1, null })
1200 <    {
1201 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
1202 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
1203 <        final SubtractFunction r = new SubtractFunction();
1204 <        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1205 <        final CFException ex = new CFException();
1206 <
1207 <        g.completeExceptionally(ex);
1208 <        checkIncomplete(h);
1209 <        f.complete(v1);
1210 <
1211 <        checkCompletedWithWrappedCFException(h, ex);
1212 <        checkCompletedWithWrappedCFException(g, ex);
1213 <        assertEquals(0, r.invocationCount);
1214 <        checkCompletedNormally(f, v1);
1215 <    }}
1216 <
1217 <    public void testThenCombine_exceptionalCompletion3() {
1433 >    public void testThenApply_exceptionalCompletion() {
1434          for (ExecutionMode m : ExecutionMode.values())
1219        for (Integer v1 : new Integer[] { 1, null })
1435      {
1221        final CompletableFuture<Integer> f = new CompletableFuture<>();
1222        final CompletableFuture<Integer> g = new CompletableFuture<>();
1223        final SubtractFunction r = new SubtractFunction();
1436          final CFException ex = new CFException();
1225
1226        g.completeExceptionally(ex);
1227        f.complete(v1);
1228        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1229
1230        checkCompletedWithWrappedCFException(h, ex);
1231        checkCompletedWithWrappedCFException(g, ex);
1232        assertEquals(0, r.invocationCount);
1233        checkCompletedNormally(f, v1);
1234    }}
1235
1236    public void testThenCombine_exceptionalCompletion4() {
1237        for (ExecutionMode m : ExecutionMode.values())
1238        for (Integer v1 : new Integer[] { 1, null })
1239    {
1437          final CompletableFuture<Integer> f = new CompletableFuture<>();
1438 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
1439 <        final SubtractFunction r = new SubtractFunction();
1243 <        final CFException ex = new CFException();
1438 >        final IncFunction[] rs = new IncFunction[4];
1439 >        for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1440  
1441 <        f.completeExceptionally(ex);
1442 <        g.complete(v1);
1443 <        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
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 <        checkCompletedWithWrappedCFException(h, ex);
1448 <        checkCompletedWithWrappedCFException(f, ex);
1449 <        assertEquals(0, r.invocationCount);
1450 <        checkCompletedNormally(g, v1);
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 <     * thenCombine result completes exceptionally if action does
1456 >     * thenApply result completes exceptionally if source cancelled
1457       */
1458 <    public void testThenCombine_actionFailed1() {
1458 >    public void testThenApply_sourceCancelled() {
1459          for (ExecutionMode m : ExecutionMode.values())
1460 <        for (Integer v1 : new Integer[] { 1, null })
1261 <        for (Integer v2 : new Integer[] { 2, null })
1460 >        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1461      {
1462          final CompletableFuture<Integer> f = new CompletableFuture<>();
1463 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
1464 <        final FailingBiFunction r = new FailingBiFunction();
1266 <        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1463 >        final IncFunction[] rs = new IncFunction[4];
1464 >        for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1465  
1466 <        f.complete(v1);
1467 <        checkIncomplete(h);
1468 <        g.complete(v2);
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 <        checkCompletedWithWrappedCFException(h);
1473 <        checkCompletedNormally(f, v1);
1474 <        checkCompletedNormally(g, v2);
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 <    public void testThenCombine_actionFailed2() {
1480 >    /**
1481 >     * thenApply result completes exceptionally if action does
1482 >     */
1483 >    public void testThenApply_actionFailed() {
1484          for (ExecutionMode m : ExecutionMode.values())
1485          for (Integer v1 : new Integer[] { 1, null })
1280        for (Integer v2 : new Integer[] { 2, null })
1486      {
1487          final CompletableFuture<Integer> f = new CompletableFuture<>();
1488 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
1489 <        final FailingBiFunction r = new FailingBiFunction();
1285 <        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1488 >        final FailingFunction[] rs = new FailingFunction[4];
1489 >        for (int i = 0; i < rs.length; i++) rs[i] = new FailingFunction(m);
1490  
1491 <        g.complete(v2);
1492 <        checkIncomplete(h);
1493 <        f.complete(v1);
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(h);
1497 >        checkCompletedWithWrappedCFException(h0);
1498 >        checkCompletedWithWrappedCFException(h1);
1499 >        checkCompletedWithWrappedCFException(h2);
1500 >        checkCompletedWithWrappedCFException(h3);
1501          checkCompletedNormally(f, v1);
1293        checkCompletedNormally(g, v2);
1502      }}
1503  
1504      /**
1505 <     * thenCombine result completes exceptionally if either source cancelled
1505 >     * thenAccept result completes normally after normal completion of source
1506       */
1507 <    public void testThenCombine_sourceCancelled1() {
1507 >    public void testThenAccept_normalCompletion() {
1508          for (ExecutionMode m : ExecutionMode.values())
1301        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1509          for (Integer v1 : new Integer[] { 1, null })
1510      {
1511          final CompletableFuture<Integer> f = new CompletableFuture<>();
1512 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
1513 <        final SubtractFunction r = new SubtractFunction();
1307 <        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1308 <
1309 <        assertTrue(f.cancel(mayInterruptIfRunning));
1310 <        checkIncomplete(h);
1311 <        g.complete(v1);
1512 >        final NoopConsumer[] rs = new NoopConsumer[4];
1513 >        for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1514  
1515 <        checkCompletedWithWrappedCancellationException(h);
1516 <        checkCancelled(f);
1517 <        assertEquals(0, r.invocationCount);
1518 <        checkCompletedNormally(g, v1);
1519 <    }}
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 <    public void testThenCombine_sourceCancelled2() {
1524 <        for (ExecutionMode m : ExecutionMode.values())
1525 <        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1526 <        for (Integer v1 : new Integer[] { 1, null })
1323 <    {
1324 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
1325 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
1326 <        final SubtractFunction r = new SubtractFunction();
1327 <        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1328 <
1329 <        assertTrue(g.cancel(mayInterruptIfRunning));
1330 <        checkIncomplete(h);
1331 <        f.complete(v1);
1332 <
1333 <        checkCompletedWithWrappedCancellationException(h);
1334 <        checkCancelled(g);
1335 <        assertEquals(0, r.invocationCount);
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 <    public void testThenCombine_sourceCancelled3() {
1531 >    /**
1532 >     * thenAccept result completes exceptionally after exceptional
1533 >     * completion of source
1534 >     */
1535 >    public void testThenAccept_exceptionalCompletion() {
1536          for (ExecutionMode m : ExecutionMode.values())
1341        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1342        for (Integer v1 : new Integer[] { 1, null })
1537      {
1538 +        final CFException ex = new CFException();
1539          final CompletableFuture<Integer> f = new CompletableFuture<>();
1540 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
1541 <        final SubtractFunction r = new SubtractFunction();
1540 >        final NoopConsumer[] rs = new NoopConsumer[4];
1541 >        for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1542  
1543 <        assertTrue(g.cancel(mayInterruptIfRunning));
1544 <        f.complete(v1);
1545 <        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
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 <        checkCompletedWithWrappedCancellationException(h);
1550 <        checkCancelled(g);
1551 <        assertEquals(0, r.invocationCount);
1552 <        checkCompletedNormally(f, v1);
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 <    public void testThenCombine_sourceCancelled4() {
1557 >    /**
1558 >     * thenAccept result completes exceptionally if source cancelled
1559 >     */
1560 >    public void testThenAccept_sourceCancelled() {
1561          for (ExecutionMode m : ExecutionMode.values())
1562          for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1361        for (Integer v1 : new Integer[] { 1, null })
1563      {
1564          final CompletableFuture<Integer> f = new CompletableFuture<>();
1565 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
1566 <        final SubtractFunction r = new SubtractFunction();
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 <        g.complete(v1);
1572 <        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1571 >        final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1572 >        final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1573  
1574 <        checkCompletedWithWrappedCancellationException(h);
1574 >        checkCompletedWithWrappedCancellationException(h0);
1575 >        checkCompletedWithWrappedCancellationException(h1);
1576 >        checkCompletedWithWrappedCancellationException(h2);
1577 >        checkCompletedWithWrappedCancellationException(h3);
1578          checkCancelled(f);
1579 <        assertEquals(0, r.invocationCount);
1374 <        checkCompletedNormally(g, v1);
1579 >        for (NoopConsumer r : rs) r.assertNotInvoked();
1580      }}
1581  
1582      /**
1583 <     * thenAcceptBoth result completes normally after normal
1379 <     * completion of sources
1583 >     * thenAccept result completes exceptionally if action does
1584       */
1585 <    public void testThenAcceptBoth_normalCompletion1() {
1382 <        for (ExecutionMode m : ExecutionMode.values())
1383 <        for (Integer v1 : new Integer[] { 1, null })
1384 <        for (Integer v2 : new Integer[] { 2, null })
1385 <    {
1386 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
1387 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
1388 <        final SubtractAction r = new SubtractAction();
1389 <        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1390 <
1391 <        f.complete(v1);
1392 <        checkIncomplete(h);
1393 <        assertEquals(0, r.invocationCount);
1394 <        g.complete(v2);
1395 <
1396 <        checkCompletedNormally(h, null);
1397 <        assertEquals(subtract(v1, v2), r.value);
1398 <        checkCompletedNormally(f, v1);
1399 <        checkCompletedNormally(g, v2);
1400 <    }}
1401 <
1402 <    public void testThenAcceptBoth_normalCompletion2() {
1403 <        for (ExecutionMode m : ExecutionMode.values())
1404 <        for (Integer v1 : new Integer[] { 1, null })
1405 <        for (Integer v2 : new Integer[] { 2, null })
1406 <    {
1407 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
1408 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
1409 <        final SubtractAction r = new SubtractAction();
1410 <        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1411 <
1412 <        g.complete(v2);
1413 <        checkIncomplete(h);
1414 <        assertEquals(0, r.invocationCount);
1415 <        f.complete(v1);
1416 <
1417 <        checkCompletedNormally(h, null);
1418 <        assertEquals(subtract(v1, v2), r.value);
1419 <        checkCompletedNormally(f, v1);
1420 <        checkCompletedNormally(g, v2);
1421 <    }}
1422 <
1423 <    public void testThenAcceptBoth_normalCompletion3() {
1585 >    public void testThenAccept_actionFailed() {
1586          for (ExecutionMode m : ExecutionMode.values())
1587          for (Integer v1 : new Integer[] { 1, null })
1426        for (Integer v2 : new Integer[] { 2, null })
1588      {
1589          final CompletableFuture<Integer> f = new CompletableFuture<>();
1590 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
1591 <        final SubtractAction r = new SubtractAction();
1590 >        final FailingConsumer[] rs = new FailingConsumer[4];
1591 >        for (int i = 0; i < rs.length; i++) rs[i] = new FailingConsumer(m);
1592  
1593 <        g.complete(v2);
1594 <        f.complete(v1);
1595 <        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
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 <        checkCompletedNormally(h, null);
1600 <        assertEquals(subtract(v1, v2), r.value);
1599 >        checkCompletedWithWrappedCFException(h0);
1600 >        checkCompletedWithWrappedCFException(h1);
1601 >        checkCompletedWithWrappedCFException(h2);
1602 >        checkCompletedWithWrappedCFException(h3);
1603          checkCompletedNormally(f, v1);
1439        checkCompletedNormally(g, v2);
1604      }}
1605  
1606 <    public void testThenAcceptBoth_normalCompletion4() {
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 SubtractAction r = new SubtractAction();
1618 >        final SubtractFunction[] rs = new SubtractFunction[6];
1619 >        for (int i = 0; i < rs.length; i++) rs[i] = new SubtractFunction(m);
1620  
1621 <        f.complete(v1);
1622 <        g.complete(v2);
1623 <        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
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  
1455        checkCompletedNormally(h, null);
1456        assertEquals(subtract(v1, v2), r.value);
1647          checkCompletedNormally(f, v1);
1648          checkCompletedNormally(g, v2);
1649      }}
1650  
1651      /**
1652 <     * thenAcceptBoth result completes exceptionally after exceptional
1652 >     * thenCombine result completes exceptionally after exceptional
1653       * completion of either source
1654       */
1655 <    public void testThenAcceptBoth_exceptionalCompletion1() {
1466 <        for (ExecutionMode m : ExecutionMode.values())
1467 <        for (Integer v1 : new Integer[] { 1, null })
1468 <    {
1469 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
1470 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
1471 <        final SubtractAction r = new SubtractAction();
1472 <        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1473 <        final CFException ex = new CFException();
1474 <
1475 <        f.completeExceptionally(ex);
1476 <        checkIncomplete(h);
1477 <        g.complete(v1);
1478 <
1479 <        checkCompletedWithWrappedCFException(h, ex);
1480 <        checkCompletedWithWrappedCFException(f, ex);
1481 <        assertEquals(0, r.invocationCount);
1482 <        checkCompletedNormally(g, v1);
1483 <    }}
1484 <
1485 <    public void testThenAcceptBoth_exceptionalCompletion2() {
1486 <        for (ExecutionMode m : ExecutionMode.values())
1487 <        for (Integer v1 : new Integer[] { 1, null })
1488 <    {
1489 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
1490 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
1491 <        final SubtractAction r = new SubtractAction();
1492 <        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1493 <        final CFException ex = new CFException();
1494 <
1495 <        g.completeExceptionally(ex);
1496 <        checkIncomplete(h);
1497 <        f.complete(v1);
1498 <
1499 <        checkCompletedWithWrappedCFException(h, ex);
1500 <        checkCompletedWithWrappedCFException(g, ex);
1501 <        assertEquals(0, r.invocationCount);
1502 <        checkCompletedNormally(f, v1);
1503 <    }}
1504 <
1505 <    public void testThenAcceptBoth_exceptionalCompletion3() {
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<>();
1511        final SubtractAction r = new SubtractAction();
1663          final CFException ex = new CFException();
1664 <
1665 <        g.completeExceptionally(ex);
1666 <        f.complete(v1);
1667 <        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1668 <
1669 <        checkCompletedWithWrappedCFException(h, ex);
1670 <        checkCompletedWithWrappedCFException(g, ex);
1671 <        assertEquals(0, r.invocationCount);
1672 <        checkCompletedNormally(f, v1);
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 <    public void testThenAcceptBoth_exceptionalCompletion4() {
1695 >    /**
1696 >     * thenCombine result completes exceptionally if either source cancelled
1697 >     */
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 SubtractAction r = new SubtractAction();
1708 <        final CFException ex = new CFException();
1709 <
1710 <        f.completeExceptionally(ex);
1711 <        g.complete(v1);
1712 <        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1713 <
1714 <        checkCompletedWithWrappedCFException(h, ex);
1715 <        checkCompletedWithWrappedCFException(f, ex);
1716 <        assertEquals(0, r.invocationCount);
1717 <        checkCompletedNormally(g, v1);
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 <     * thenAcceptBoth result completes exceptionally if action does
1739 >     * thenCombine result completes exceptionally if action does
1740       */
1741 <    public void testThenAcceptBoth_actionFailed1() {
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 FailingBiConsumer r = new FailingBiConsumer();
1750 <        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1751 <
1752 <        f.complete(v1);
1753 <        checkIncomplete(h);
1754 <        g.complete(v2);
1755 <
1756 <        checkCompletedWithWrappedCFException(h);
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 <    public void testThenAcceptBoth_actionFailed2() {
1774 >    /**
1775 >     * thenAcceptBoth result completes normally after normal
1776 >     * completion of sources
1777 >     */
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 FailingBiConsumer r = new FailingBiConsumer();
1787 <        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1788 <
1789 <        g.complete(v2);
1790 <        checkIncomplete(h);
1791 <        f.complete(v1);
1792 <
1793 <        checkCompletedWithWrappedCFException(h);
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 if either source cancelled
1816 >     * thenAcceptBoth result completes exceptionally after exceptional
1817 >     * completion of either source
1818       */
1819 <    public void testThenAcceptBoth_sourceCancelled1() {
1588 <        for (ExecutionMode m : ExecutionMode.values())
1589 <        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1590 <        for (Integer v1 : new Integer[] { 1, null })
1591 <    {
1592 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
1593 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
1594 <        final SubtractAction r = new SubtractAction();
1595 <        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1596 <
1597 <        assertTrue(f.cancel(mayInterruptIfRunning));
1598 <        checkIncomplete(h);
1599 <        g.complete(v1);
1600 <
1601 <        checkCompletedWithWrappedCancellationException(h);
1602 <        checkCancelled(f);
1603 <        assertEquals(0, r.invocationCount);
1604 <        checkCompletedNormally(g, v1);
1605 <    }}
1606 <
1607 <    public void testThenAcceptBoth_sourceCancelled2() {
1608 <        for (ExecutionMode m : ExecutionMode.values())
1609 <        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1610 <        for (Integer v1 : new Integer[] { 1, null })
1611 <    {
1612 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
1613 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
1614 <        final SubtractAction r = new SubtractAction();
1615 <        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1616 <
1617 <        assertTrue(g.cancel(mayInterruptIfRunning));
1618 <        checkIncomplete(h);
1619 <        f.complete(v1);
1620 <
1621 <        checkCompletedWithWrappedCancellationException(h);
1622 <        checkCancelled(g);
1623 <        assertEquals(0, r.invocationCount);
1624 <        checkCompletedNormally(f, v1);
1625 <    }}
1626 <
1627 <    public void testThenAcceptBoth_sourceCancelled3() {
1819 >    public void testThenAcceptBoth_exceptionalCompletion() throws Throwable {
1820          for (ExecutionMode m : ExecutionMode.values())
1821 <        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
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 SubtractAction r = new SubtractAction();
1828 <
1829 <        assertTrue(g.cancel(mayInterruptIfRunning));
1830 <        f.complete(v1);
1831 <        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1832 <
1833 <        checkCompletedWithWrappedCancellationException(h);
1834 <        checkCancelled(g);
1835 <        assertEquals(0, r.invocationCount);
1836 <        checkCompletedNormally(f, v1);
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 <    public void testThenAcceptBoth_sourceCancelled4() {
1859 >    /**
1860 >     * thenAcceptBoth result completes exceptionally if either source cancelled
1861 >     */
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 r = new SubtractAction();
1872 <
1873 <        assertTrue(f.cancel(mayInterruptIfRunning));
1874 <        g.complete(v1);
1875 <        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1876 <
1877 <        checkCompletedWithWrappedCancellationException(h);
1878 <        checkCancelled(f);
1879 <        assertEquals(0, r.invocationCount);
1880 <        checkCompletedNormally(g, v1);
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 <     * runAfterBoth result completes normally after normal
1667 <     * completion of sources
1903 >     * thenAcceptBoth result completes exceptionally if action does
1904       */
1905 <    public void testRunAfterBoth_normalCompletion1() {
1670 <        for (ExecutionMode m : ExecutionMode.values())
1671 <        for (Integer v1 : new Integer[] { 1, null })
1672 <        for (Integer v2 : new Integer[] { 2, null })
1673 <    {
1674 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
1675 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
1676 <        final Noop r = new Noop();
1677 <        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1678 <
1679 <        f.complete(v1);
1680 <        checkIncomplete(h);
1681 <        assertEquals(0, r.invocationCount);
1682 <        g.complete(v2);
1683 <
1684 <        checkCompletedNormally(h, null);
1685 <        assertEquals(1, r.invocationCount);
1686 <        checkCompletedNormally(f, v1);
1687 <        checkCompletedNormally(g, v2);
1688 <    }}
1689 <
1690 <    public void testRunAfterBoth_normalCompletion2() {
1691 <        for (ExecutionMode m : ExecutionMode.values())
1692 <        for (Integer v1 : new Integer[] { 1, null })
1693 <        for (Integer v2 : new Integer[] { 2, null })
1694 <    {
1695 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
1696 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
1697 <        final Noop r = new Noop();
1698 <        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1699 <
1700 <        g.complete(v2);
1701 <        checkIncomplete(h);
1702 <        assertEquals(0, r.invocationCount);
1703 <        f.complete(v1);
1704 <
1705 <        checkCompletedNormally(h, null);
1706 <        assertEquals(1, r.invocationCount);
1707 <        checkCompletedNormally(f, v1);
1708 <        checkCompletedNormally(g, v2);
1709 <    }}
1710 <
1711 <    public void testRunAfterBoth_normalCompletion3() {
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 Noop r = new Noop();
1914 <
1915 <        g.complete(v2);
1916 <        f.complete(v1);
1917 <        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1918 <
1919 <        checkCompletedNormally(h, null);
1920 <        assertEquals(1, r.invocationCount);
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 <    public void testRunAfterBoth_normalCompletion4() {
1938 >    /**
1939 >     * runAfterBoth result completes normally after normal
1940 >     * completion of sources
1941 >     */
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 r = new Noop();
1951 <
1952 <        f.complete(v1);
1953 <        g.complete(v2);
1954 <        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1955 <
1956 <        checkCompletedNormally(h, null);
1957 <        assertEquals(1, r.invocationCount);
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      }}
# Line 1750 | Line 1980 | public class CompletableFutureTest exten
1980       * runAfterBoth result completes exceptionally after exceptional
1981       * completion of either source
1982       */
1983 <    public void testRunAfterBoth_exceptionalCompletion1() {
1754 <        for (ExecutionMode m : ExecutionMode.values())
1755 <        for (Integer v1 : new Integer[] { 1, null })
1756 <    {
1757 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
1758 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
1759 <        final Noop r = new Noop();
1760 <        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1761 <        final CFException ex = new CFException();
1762 <
1763 <        f.completeExceptionally(ex);
1764 <        checkIncomplete(h);
1765 <        g.complete(v1);
1766 <
1767 <        checkCompletedWithWrappedCFException(h, ex);
1768 <        checkCompletedWithWrappedCFException(f, ex);
1769 <        assertEquals(0, r.invocationCount);
1770 <        checkCompletedNormally(g, v1);
1771 <    }}
1772 <
1773 <    public void testRunAfterBoth_exceptionalCompletion2() {
1774 <        for (ExecutionMode m : ExecutionMode.values())
1775 <        for (Integer v1 : new Integer[] { 1, null })
1776 <    {
1777 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
1778 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
1779 <        final Noop r = new Noop();
1780 <        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1781 <        final CFException ex = new CFException();
1782 <
1783 <        g.completeExceptionally(ex);
1784 <        checkIncomplete(h);
1785 <        f.complete(v1);
1786 <
1787 <        checkCompletedWithWrappedCFException(h, ex);
1788 <        checkCompletedWithWrappedCFException(g, ex);
1789 <        assertEquals(0, r.invocationCount);
1790 <        checkCompletedNormally(f, v1);
1791 <    }}
1792 <
1793 <    public void testRunAfterBoth_exceptionalCompletion3() {
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<>();
1799        final Noop r = new Noop();
1991          final CFException ex = new CFException();
1992 <
1993 <        g.completeExceptionally(ex);
1994 <        f.complete(v1);
1995 <        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1996 <
1997 <        checkCompletedWithWrappedCFException(h, ex);
1998 <        checkCompletedWithWrappedCFException(g, ex);
1999 <        assertEquals(0, r.invocationCount);
2000 <        checkCompletedNormally(f, v1);
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 <    public void testRunAfterBoth_exceptionalCompletion4() {
2023 >    /**
2024 >     * runAfterBoth result completes exceptionally if either source cancelled
2025 >     */
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 r = new Noop();
2036 <        final CFException ex = new CFException();
2037 <
2038 <        f.completeExceptionally(ex);
2039 <        g.complete(v1);
2040 <        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
2041 <
2042 <        checkCompletedWithWrappedCFException(h, ex);
2043 <        checkCompletedWithWrappedCFException(f, ex);
2044 <        assertEquals(0, r.invocationCount);
2045 <        checkCompletedNormally(g, v1);
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 action does
2068       */
2069 <    public void testRunAfterBoth_actionFailed1() {
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 FailingNoop r = new FailingNoop();
2078 <        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
2079 <
2080 <        f.complete(v1);
2081 <        checkIncomplete(h);
2082 <        g.complete(v2);
2083 <
2084 <        checkCompletedWithWrappedCFException(h);
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  
1853    public void testRunAfterBoth_actionFailed2() {
1854        for (ExecutionMode m : ExecutionMode.values())
1855        for (Integer v1 : new Integer[] { 1, null })
1856        for (Integer v2 : new Integer[] { 2, null })
1857    {
1858        final CompletableFuture<Integer> f = new CompletableFuture<>();
1859        final CompletableFuture<Integer> g = new CompletableFuture<>();
1860        final FailingNoop r = new FailingNoop();
1861        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1862
1863        g.complete(v2);
1864        checkIncomplete(h);
1865        f.complete(v1);
1866
1867        checkCompletedWithWrappedCFException(h);
1868        checkCompletedNormally(f, v1);
1869        checkCompletedNormally(g, v2);
1870    }}
1871
1872    /**
1873     * runAfterBoth result completes exceptionally if either source cancelled
1874     */
1875    public void testRunAfterBoth_sourceCancelled1() {
1876        for (ExecutionMode m : ExecutionMode.values())
1877        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1878        for (Integer v1 : new Integer[] { 1, null })
1879    {
1880        final CompletableFuture<Integer> f = new CompletableFuture<>();
1881        final CompletableFuture<Integer> g = new CompletableFuture<>();
1882        final Noop r = new Noop();
1883        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1884
1885        assertTrue(f.cancel(mayInterruptIfRunning));
1886        checkIncomplete(h);
1887        g.complete(v1);
1888
1889        checkCompletedWithWrappedCancellationException(h);
1890        checkCancelled(f);
1891        assertEquals(0, r.invocationCount);
1892        checkCompletedNormally(g, v1);
1893    }}
1894
1895    public void testRunAfterBoth_sourceCancelled2() {
1896        for (ExecutionMode m : ExecutionMode.values())
1897        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1898        for (Integer v1 : new Integer[] { 1, null })
1899    {
1900        final CompletableFuture<Integer> f = new CompletableFuture<>();
1901        final CompletableFuture<Integer> g = new CompletableFuture<>();
1902        final Noop r = new Noop();
1903        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1904
1905        assertTrue(g.cancel(mayInterruptIfRunning));
1906        checkIncomplete(h);
1907        f.complete(v1);
1908
1909        checkCompletedWithWrappedCancellationException(h);
1910        checkCancelled(g);
1911        assertEquals(0, r.invocationCount);
1912        checkCompletedNormally(f, v1);
1913    }}
1914
1915    public void testRunAfterBoth_sourceCancelled3() {
1916        for (ExecutionMode m : ExecutionMode.values())
1917        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1918        for (Integer v1 : new Integer[] { 1, null })
1919    {
1920        final CompletableFuture<Integer> f = new CompletableFuture<>();
1921        final CompletableFuture<Integer> g = new CompletableFuture<>();
1922        final Noop r = new Noop();
1923
1924        assertTrue(g.cancel(mayInterruptIfRunning));
1925        f.complete(v1);
1926        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1927
1928        checkCompletedWithWrappedCancellationException(h);
1929        checkCancelled(g);
1930        assertEquals(0, r.invocationCount);
1931        checkCompletedNormally(f, v1);
1932    }}
1933
1934    public void testRunAfterBoth_sourceCancelled4() {
1935        for (ExecutionMode m : ExecutionMode.values())
1936        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1937        for (Integer v1 : new Integer[] { 1, null })
1938    {
1939        final CompletableFuture<Integer> f = new CompletableFuture<>();
1940        final CompletableFuture<Integer> g = new CompletableFuture<>();
1941        final Noop r = new Noop();
1942
1943        assertTrue(f.cancel(mayInterruptIfRunning));
1944        g.complete(v1);
1945        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1946
1947        checkCompletedWithWrappedCancellationException(h);
1948        checkCancelled(f);
1949        assertEquals(0, r.invocationCount);
1950        checkCompletedNormally(g, v1);
1951    }}
1952
2102      /**
2103       * applyToEither result completes normally after normal completion
2104       * of either source
2105       */
2106 <    public void testApplyToEither_normalCompletion1() {
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 r = new IncFunction();
2114 <        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
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(h, inc(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 <        checkCompletedNormally(f, v1);
2132 <        checkCompletedNormally(g, v2);
2133 <        checkCompletedNormally(h, inc(v1));
2134 <    }}
2135 <
2136 <    public void testApplyToEither_normalCompletion2() {
2137 <        for (ExecutionMode m : ExecutionMode.values())
2138 <        for (Integer v1 : new Integer[] { 1, null })
2139 <        for (Integer v2 : new Integer[] { 2, null })
1980 <    {
1981 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
1982 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
1983 <        final IncFunction r = new IncFunction();
1984 <        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
1985 <
1986 <        g.complete(v2);
1987 <        checkCompletedNormally(h, inc(v2));
1988 <        f.complete(v1);
1989 <
1990 <        checkCompletedNormally(f, v1);
1991 <        checkCompletedNormally(g, v2);
1992 <        checkCompletedNormally(h, inc(v2));
1993 <        }}
1994 <
1995 <    public void testApplyToEither_normalCompletion3() {
1996 <        for (ExecutionMode m : ExecutionMode.values())
1997 <        for (Integer v1 : new Integer[] { 1, null })
1998 <        for (Integer v2 : new Integer[] { 2, null })
1999 <    {
2000 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
2001 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
2002 <        final IncFunction r = new IncFunction();
2003 <
2004 <        f.complete(v1);
2005 <        g.complete(v2);
2006 <        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
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 <
2144 <        // unspecified behavior
2145 <        assertTrue(Objects.equals(h.join(), inc(v1)) ||
2146 <                   Objects.equals(h.join(), inc(v2)));
2147 <        assertEquals(1, r.invocationCount);
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 testApplyToEither_exceptionalCompletion1() {
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<>();
2027        final IncFunction r = new IncFunction();
2028        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
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 <        checkCompletedWithWrappedCFException(h, 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 <        assertEquals(0, r.invocationCount);
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 >        checkCompletedExceptionally(f, ex);
2198          checkCompletedNormally(g, v1);
2199 <        checkCompletedWithWrappedCFException(f, ex);
2200 <        checkCompletedWithWrappedCFException(h, ex);
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<>();
2047        final IncFunction r = new IncFunction();
2048        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2049        final CFException ex = new CFException();
2050
2051        g.completeExceptionally(ex);
2052        checkCompletedWithWrappedCFException(h, ex);
2053        f.complete(v1);
2054
2055        assertEquals(0, r.invocationCount);
2056        checkCompletedNormally(f, v1);
2057        checkCompletedWithWrappedCFException(g, ex);
2058        checkCompletedWithWrappedCFException(h, ex);
2059    }}
2060
2061    public void testApplyToEither_exceptionalCompletion3() {
2062        for (ExecutionMode m : ExecutionMode.values())
2063        for (Integer v1 : new Integer[] { 1, null })
2064    {
2065        final CompletableFuture<Integer> f = new CompletableFuture<>();
2066        final CompletableFuture<Integer> g = new CompletableFuture<>();
2067        final IncFunction r = new IncFunction();
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 <        g.completeExceptionally(ex);
2219 <        f.complete(v1);
2220 <        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
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 <        // unspecified behavior
2075 <        Integer v;
2225 >        // unspecified behavior - both source completions available
2226          try {
2227 <            assertEquals(inc(v1), h.join());
2228 <            assertEquals(1, r.invocationCount);
2227 >            assertEquals(inc(v1), h0.join());
2228 >            rs[0].assertValue(inc(v1));
2229          } catch (CompletionException ok) {
2230 <            checkCompletedWithWrappedCFException(h, ex);
2231 <            assertEquals(0, r.invocationCount);
2230 >            checkCompletedWithWrappedException(h0, ex);
2231 >            rs[0].assertNotInvoked();
2232          }
2083
2084        checkCompletedWithWrappedCFException(g, ex);
2085        checkCompletedNormally(f, v1);
2086    }}
2087
2088    public void testApplyToEither_exceptionalCompletion4() {
2089        for (ExecutionMode m : ExecutionMode.values())
2090        for (Integer v1 : new Integer[] { 1, null })
2091    {
2092        final CompletableFuture<Integer> f = new CompletableFuture<>();
2093        final CompletableFuture<Integer> g = new CompletableFuture<>();
2094        final IncFunction r = new IncFunction();
2095        final CFException ex = new CFException();
2096
2097        f.completeExceptionally(ex);
2098        g.complete(v1);
2099        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2100
2101        // unspecified behavior
2102        Integer v;
2233          try {
2234 <            assertEquals(inc(v1), h.join());
2235 <            assertEquals(1, r.invocationCount);
2234 >            assertEquals(inc(v1), h1.join());
2235 >            rs[1].assertValue(inc(v1));
2236          } catch (CompletionException ok) {
2237 <            checkCompletedWithWrappedCFException(h, ex);
2238 <            assertEquals(0, r.invocationCount);
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  
2111        checkCompletedWithWrappedCFException(f, ex);
2112        checkCompletedNormally(g, v1);
2113    }}
2114
2115    /**
2116     * applyToEither result completes exceptionally if action does
2117     */
2118    public void testApplyToEither_actionFailed1() {
2119        for (ExecutionMode m : ExecutionMode.values())
2120        for (Integer v1 : new Integer[] { 1, null })
2121        for (Integer v2 : new Integer[] { 2, null })
2122    {
2123        final CompletableFuture<Integer> f = new CompletableFuture<>();
2124        final CompletableFuture<Integer> g = new CompletableFuture<>();
2125        final FailingFunction r = new FailingFunction();
2126        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2127
2128        f.complete(v1);
2129        checkCompletedWithWrappedCFException(h);
2130        g.complete(v2);
2131        checkCompletedNormally(f, v1);
2132        checkCompletedNormally(g, v2);
2133    }}
2134
2135    public void testApplyToEither_actionFailed2() {
2136        for (ExecutionMode m : ExecutionMode.values())
2137        for (Integer v1 : new Integer[] { 1, null })
2138        for (Integer v2 : new Integer[] { 2, null })
2139    {
2140        final CompletableFuture<Integer> f = new CompletableFuture<>();
2141        final CompletableFuture<Integer> g = new CompletableFuture<>();
2142        final FailingFunction r = new FailingFunction();
2143        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2144
2145        g.complete(v2);
2146        checkCompletedWithWrappedCFException(h);
2147        f.complete(v1);
2255          checkCompletedNormally(f, v1);
2256 <        checkCompletedNormally(g, v2);
2256 >        checkCompletedExceptionally(g, ex);
2257      }}
2258  
2259      /**
2260       * applyToEither result completes exceptionally if either source cancelled
2261       */
2262 <    public void testApplyToEither_sourceCancelled1() {
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 r = new IncFunction();
2270 <        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2269 >        final IncFunction[] rs = new IncFunction[6];
2270 >        for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2271  
2272 <        assertTrue(f.cancel(mayInterruptIfRunning));
2273 <        checkCompletedWithWrappedCancellationException(h);
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          checkCancelled(f);
2170        assertEquals(0, r.invocationCount);
2306          checkCompletedNormally(g, v1);
2307 <        checkCompletedWithWrappedCancellationException(h);
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 r = new IncFunction();
2323 <        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2184 <
2185 <        assertTrue(g.cancel(mayInterruptIfRunning));
2186 <        checkCompletedWithWrappedCancellationException(h);
2187 <        f.complete(v1);
2188 <
2189 <        checkCancelled(g);
2190 <        assertEquals(0, r.invocationCount);
2191 <        checkCompletedNormally(f, v1);
2192 <        checkCompletedWithWrappedCancellationException(h);
2193 <    }}
2194 <
2195 <    public void testApplyToEither_sourceCancelled3() {
2196 <        for (ExecutionMode m : ExecutionMode.values())
2197 <        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2198 <        for (Integer v1 : new Integer[] { 1, null })
2199 <    {
2200 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
2201 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
2202 <        final IncFunction r = new IncFunction();
2322 >        final IncFunction[] rs = new IncFunction[6];
2323 >        for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2324  
2325 <        assertTrue(g.cancel(mayInterruptIfRunning));
2326 <        f.complete(v1);
2327 <        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
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 <        // unspecified behavior
2209 <        Integer v;
2332 >        // unspecified behavior - both source completions available
2333          try {
2334 <            assertEquals(inc(v1), h.join());
2335 <            assertEquals(1, r.invocationCount);
2334 >            assertEquals(inc(v1), h0.join());
2335 >            rs[0].assertValue(inc(v1));
2336          } catch (CompletionException ok) {
2337 <            checkCompletedWithWrappedCancellationException(h);
2338 <            assertEquals(0, r.invocationCount);
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          }
2217
2218        checkCancelled(g);
2219        checkCompletedNormally(f, v1);
2220    }}
2221
2222    public void testApplyToEither_sourceCancelled4() {
2223        for (ExecutionMode m : ExecutionMode.values())
2224        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2225        for (Integer v1 : new Integer[] { 1, null })
2226    {
2227        final CompletableFuture<Integer> f = new CompletableFuture<>();
2228        final CompletableFuture<Integer> g = new CompletableFuture<>();
2229        final IncFunction r = new IncFunction();
2230
2231        assertTrue(f.cancel(mayInterruptIfRunning));
2232        g.complete(v1);
2233        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2234
2235        // unspecified behavior
2236        Integer v;
2354          try {
2355 <            assertEquals(inc(v1), h.join());
2356 <            assertEquals(1, r.invocationCount);
2355 >            assertEquals(inc(v1), h3.join());
2356 >            rs[3].assertValue(inc(v1));
2357          } catch (CompletionException ok) {
2358 <            checkCompletedWithWrappedCancellationException(h);
2359 <            assertEquals(0, r.invocationCount);
2358 >            checkCompletedWithWrappedCancellationException(h3);
2359 >            rs[3].assertNotInvoked();
2360          }
2361  
2362 <        checkCancelled(f);
2363 <        checkCompletedNormally(g, v1);
2362 >        checkCompletedNormally(f, v1);
2363 >        checkCancelled(g);
2364      }}
2365  
2366      /**
2367 <     * acceptEither result completes normally after normal completion
2251 <     * of either source
2367 >     * applyToEither result completes exceptionally if action does
2368       */
2369 <    public void testAcceptEither_normalCompletion1() {
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 IncAction r = new IncAction();
2377 <        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
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 <        checkCompletedNormally(h, null);
2383 <        assertEquals(inc(v1), r.value);
2384 <        g.complete(v2);
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 <        checkCompletedNormally(f, v1);
2269 <        checkCompletedNormally(g, v2);
2270 <        checkCompletedNormally(h, null);
2271 <    }}
2390 >        g.complete(v2);
2391  
2392 <    public void testAcceptEither_normalCompletion2() {
2393 <        for (ExecutionMode m : ExecutionMode.values())
2394 <        for (Integer v1 : new Integer[] { 1, null })
2276 <        for (Integer v2 : new Integer[] { 2, null })
2277 <    {
2278 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
2279 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
2280 <        final IncAction r = new IncAction();
2281 <        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
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 <        g.complete(v2);
2397 <        checkCompletedNormally(h, null);
2398 <        assertEquals(inc(v2), r.value);
2399 <        f.complete(v1);
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);
2290        checkCompletedNormally(h, null);
2405      }}
2406  
2407 <    public void testAcceptEither_normalCompletion3() {
2407 >    /**
2408 >     * acceptEither result completes normally after normal completion
2409 >     * of either source
2410 >     */
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 IncAction r = new IncAction();
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);
2304        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2439  
2440 <        checkCompletedNormally(h, null);
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 <
2453 <        // unspecified behavior
2454 <        assertTrue(Objects.equals(r.value, inc(v1)) ||
2455 <                   Objects.equals(r.value, inc(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       * acceptEither result completes exceptionally after exceptional
2461       * completion of either source
2462       */
2463 <    public void testAcceptEither_exceptionalCompletion1() {
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<>();
2325        final IncAction r = new IncAction();
2326        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
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 <        checkCompletedWithWrappedCFException(h, 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 <        assertEquals(0, r.invocationCount);
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 >            assertNull(h4.join());
2494 >            rs[4].assertValue(v1);
2495 >        } catch (CompletionException ok) {
2496 >            checkCompletedWithWrappedException(h4, ex);
2497 >            rs[4].assertNotInvoked();
2498 >        }
2499 >        try {
2500 >            assertNull(h5.join());
2501 >            rs[5].assertValue(v1);
2502 >        } catch (CompletionException ok) {
2503 >            checkCompletedWithWrappedException(h5, ex);
2504 >            rs[5].assertNotInvoked();
2505 >        }
2506 >
2507 >        checkCompletedExceptionally(f, ex);
2508          checkCompletedNormally(g, v1);
2509 <        checkCompletedWithWrappedCFException(f, ex);
2510 <        checkCompletedWithWrappedCFException(h, ex);
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<>();
2345        final IncAction r = new IncAction();
2346        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2347        final CFException ex = new CFException();
2348
2349        g.completeExceptionally(ex);
2350        checkCompletedWithWrappedCFException(h, ex);
2351        f.complete(v1);
2352
2353        assertEquals(0, r.invocationCount);
2354        checkCompletedNormally(f, v1);
2355        checkCompletedWithWrappedCFException(g, ex);
2356        checkCompletedWithWrappedCFException(h, ex);
2357    }}
2358
2359    public void testAcceptEither_exceptionalCompletion3() {
2360        for (ExecutionMode m : ExecutionMode.values())
2361        for (Integer v1 : new Integer[] { 1, null })
2362    {
2363        final CompletableFuture<Integer> f = new CompletableFuture<>();
2364        final CompletableFuture<Integer> g = new CompletableFuture<>();
2365        final IncAction r = new IncAction();
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 <        g.completeExceptionally(ex);
2529 <        f.complete(v1);
2530 <        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
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 <        // unspecified behavior
2373 <        Integer v;
2535 >        // unspecified behavior - both source completions available
2536          try {
2537 <            assertNull(h.join());
2538 <            assertEquals(1, r.invocationCount);
2377 <            assertEquals(inc(v1), r.value);
2537 >            assertEquals(null, h0.join());
2538 >            rs[0].assertValue(v1);
2539          } catch (CompletionException ok) {
2540 <            checkCompletedWithWrappedCFException(h, ex);
2541 <            assertEquals(0, r.invocationCount);
2540 >            checkCompletedWithWrappedException(h0, ex);
2541 >            rs[0].assertNotInvoked();
2542          }
2382
2383        checkCompletedWithWrappedCFException(g, ex);
2384        checkCompletedNormally(f, v1);
2385    }}
2386
2387    public void testAcceptEither_exceptionalCompletion4() {
2388        for (ExecutionMode m : ExecutionMode.values())
2389        for (Integer v1 : new Integer[] { 1, null })
2390    {
2391        final CompletableFuture<Integer> f = new CompletableFuture<>();
2392        final CompletableFuture<Integer> g = new CompletableFuture<>();
2393        final IncAction r = new IncAction();
2394        final CFException ex = new CFException();
2395
2396        f.completeExceptionally(ex);
2397        g.complete(v1);
2398        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2399
2400        // unspecified behavior
2401        Integer v;
2543          try {
2544 <            assertNull(h.join());
2545 <            assertEquals(1, r.invocationCount);
2405 <            assertEquals(inc(v1), r.value);
2544 >            assertEquals(null, h1.join());
2545 >            rs[1].assertValue(v1);
2546          } catch (CompletionException ok) {
2547 <            checkCompletedWithWrappedCFException(h, ex);
2548 <            assertEquals(0, r.invocationCount);
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  
2411        checkCompletedWithWrappedCFException(f, ex);
2412        checkCompletedNormally(g, v1);
2413    }}
2414
2415    /**
2416     * acceptEither result completes exceptionally if action does
2417     */
2418    public void testAcceptEither_actionFailed1() {
2419        for (ExecutionMode m : ExecutionMode.values())
2420        for (Integer v1 : new Integer[] { 1, null })
2421        for (Integer v2 : new Integer[] { 2, null })
2422    {
2423        final CompletableFuture<Integer> f = new CompletableFuture<>();
2424        final CompletableFuture<Integer> g = new CompletableFuture<>();
2425        final FailingConsumer r = new FailingConsumer();
2426        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2427
2428        f.complete(v1);
2429        checkCompletedWithWrappedCFException(h);
2430        g.complete(v2);
2431        checkCompletedNormally(f, v1);
2432        checkCompletedNormally(g, v2);
2433    }}
2434
2435    public void testAcceptEither_actionFailed2() {
2436        for (ExecutionMode m : ExecutionMode.values())
2437        for (Integer v1 : new Integer[] { 1, null })
2438        for (Integer v2 : new Integer[] { 2, null })
2439    {
2440        final CompletableFuture<Integer> f = new CompletableFuture<>();
2441        final CompletableFuture<Integer> g = new CompletableFuture<>();
2442        final FailingConsumer r = new FailingConsumer();
2443        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2444
2445        g.complete(v2);
2446        checkCompletedWithWrappedCFException(h);
2447        f.complete(v1);
2565          checkCompletedNormally(f, v1);
2566 <        checkCompletedNormally(g, v2);
2566 >        checkCompletedExceptionally(g, ex);
2567      }}
2568  
2569      /**
2570       * acceptEither result completes exceptionally if either source cancelled
2571       */
2572 <    public void testAcceptEither_sourceCancelled1() {
2456 <        for (ExecutionMode m : ExecutionMode.values())
2457 <        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2458 <        for (Integer v1 : new Integer[] { 1, null })
2459 <    {
2460 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
2461 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
2462 <        final IncAction r = new IncAction();
2463 <        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2464 <
2465 <        assertTrue(f.cancel(mayInterruptIfRunning));
2466 <        checkCompletedWithWrappedCancellationException(h);
2467 <        g.complete(v1);
2468 <
2469 <        checkCancelled(f);
2470 <        assertEquals(0, r.invocationCount);
2471 <        checkCompletedNormally(g, v1);
2472 <        checkCompletedWithWrappedCancellationException(h);
2473 <    }}
2474 <
2475 <    public void testAcceptEither_sourceCancelled2() {
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 IncAction r = new IncAction();
2580 <        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2484 <
2485 <        assertTrue(g.cancel(mayInterruptIfRunning));
2486 <        checkCompletedWithWrappedCancellationException(h);
2487 <        f.complete(v1);
2488 <
2489 <        checkCancelled(g);
2490 <        assertEquals(0, r.invocationCount);
2491 <        checkCompletedNormally(f, v1);
2492 <        checkCompletedWithWrappedCancellationException(h);
2493 <    }}
2579 >        final NoopConsumer[] rs = new NoopConsumer[6];
2580 >        for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2581  
2582 <    public void testAcceptEither_sourceCancelled3() {
2583 <        for (ExecutionMode m : ExecutionMode.values())
2584 <        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2585 <        for (Integer v1 : new Integer[] { 1, null })
2586 <    {
2587 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
2588 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
2589 <        final IncAction r = new IncAction();
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 <        assertTrue(g.cancel(mayInterruptIfRunning));
2505 <        f.complete(v1);
2506 <        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2596 >        g.complete(v1);
2597  
2598 <        // unspecified behavior
2599 <        Integer v;
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(h.join());
2603 <            assertEquals(1, r.invocationCount);
2513 <            assertEquals(inc(v1), r.value);
2602 >            assertNull(h4.join());
2603 >            rs[4].assertValue(v1);
2604          } catch (CompletionException ok) {
2605 <            checkCompletedWithWrappedCancellationException(h);
2606 <            assertEquals(0, r.invocationCount);
2605 >            checkCompletedWithWrappedCancellationException(h4);
2606 >            rs[4].assertNotInvoked();
2607          }
2518
2519        checkCancelled(g);
2520        checkCompletedNormally(f, v1);
2521    }}
2522
2523    public void testAcceptEither_sourceCancelled4() {
2524        for (ExecutionMode m : ExecutionMode.values())
2525        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2526        for (Integer v1 : new Integer[] { 1, null })
2527    {
2528        final CompletableFuture<Integer> f = new CompletableFuture<>();
2529        final CompletableFuture<Integer> g = new CompletableFuture<>();
2530        final IncAction r = new IncAction();
2531
2532        assertTrue(f.cancel(mayInterruptIfRunning));
2533        g.complete(v1);
2534        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2535
2536        // unspecified behavior
2537        Integer v;
2608          try {
2609 <            assertNull(h.join());
2610 <            assertEquals(1, r.invocationCount);
2541 <            assertEquals(inc(v1), r.value);
2609 >            assertNull(h5.join());
2610 >            rs[5].assertValue(v1);
2611          } catch (CompletionException ok) {
2612 <            checkCompletedWithWrappedCancellationException(h);
2613 <            assertEquals(0, r.invocationCount);
2612 >            checkCompletedWithWrappedCancellationException(h5);
2613 >            rs[5].assertNotInvoked();
2614          }
2615  
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 <     * runAfterEither result completes normally after normal completion
2553 <     * of either source
2626 >     * acceptEither result completes exceptionally if action does
2627       */
2628 <    public void testRunAfterEither_normalCompletion1() {
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 Noop r = new Noop();
2636 <        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
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 <        checkCompletedNormally(h, null);
2642 <        assertEquals(1, r.invocationCount);
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 <        checkCompletedNormally(f, v1);
2652 <        checkCompletedNormally(g, v2);
2653 <        checkCompletedNormally(h, null);
2573 <        assertEquals(1, r.invocationCount);
2574 <    }}
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 <    public void testRunAfterEither_normalCompletion2() {
2656 <        for (ExecutionMode m : ExecutionMode.values())
2657 <        for (Integer v1 : new Integer[] { 1, null })
2658 <        for (Integer v2 : new Integer[] { 2, null })
2659 <    {
2660 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
2582 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
2583 <        final Noop r = new Noop();
2584 <        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2585 <
2586 <        g.complete(v2);
2587 <        checkCompletedNormally(h, null);
2588 <        assertEquals(1, r.invocationCount);
2589 <        f.complete(v1);
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 <        checkCompletedNormally(h, null);
2594 <        assertEquals(1, r.invocationCount);
2595 <        }}
2664 >    }}
2665  
2666 <    public void testRunAfterEither_normalCompletion3() {
2666 >    /**
2667 >     * runAfterEither result completes normally after normal completion
2668 >     * of either source
2669 >     */
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 r = new Noop();
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);
2608        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2699  
2700 <        checkCompletedNormally(h, null);
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 <        assertEquals(1, r.invocationCount);
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       * runAfterEither result completes exceptionally after exceptional
2716       * completion of either source
2717       */
2718 <    public void testRunAfterEither_exceptionalCompletion1() {
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<>();
2626        final Noop r = new Noop();
2627        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
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 <        f.completeExceptionally(ex);
2729 <        checkCompletedWithWrappedCFException(h, ex);
2730 <        g.complete(v1);
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 <        assertEquals(0, r.invocationCount);
2635 <        checkCompletedNormally(g, v1);
2636 <        checkCompletedWithWrappedCFException(f, ex);
2637 <        checkCompletedWithWrappedCFException(h, ex);
2638 <    }}
2742 >        assertTrue(g.complete(v1));
2743  
2744 <    public void testRunAfterEither_exceptionalCompletion2() {
2745 <        for (ExecutionMode m : ExecutionMode.values())
2746 <        for (Integer v1 : new Integer[] { 1, null })
2643 <    {
2644 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
2645 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
2646 <        final Noop r = new Noop();
2647 <        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2648 <        final CFException ex = new CFException();
2649 <
2650 <        g.completeExceptionally(ex);
2651 <        checkCompletedWithWrappedCFException(h, ex);
2652 <        f.complete(v1);
2653 <
2654 <        assertEquals(0, r.invocationCount);
2655 <        checkCompletedNormally(f, v1);
2656 <        checkCompletedWithWrappedCFException(g, ex);
2657 <        checkCompletedWithWrappedCFException(h, ex);
2658 <    }}
2659 <
2660 <    public void testRunAfterEither_exceptionalCompletion3() {
2661 <        for (ExecutionMode m : ExecutionMode.values())
2662 <        for (Integer v1 : new Integer[] { 1, null })
2663 <    {
2664 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
2665 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
2666 <        final Noop r = new Noop();
2667 <        final CFException ex = new CFException();
2668 <
2669 <        g.completeExceptionally(ex);
2670 <        f.complete(v1);
2671 <        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2672 <
2673 <        // unspecified behavior
2674 <        Integer v;
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(h.join());
2749 <            assertEquals(1, r.invocationCount);
2748 >            assertNull(h4.join());
2749 >            rs[4].assertInvoked();
2750          } catch (CompletionException ok) {
2751 <            checkCompletedWithWrappedCFException(h, ex);
2752 <            assertEquals(0, r.invocationCount);
2751 >            checkCompletedWithWrappedException(h4, ex);
2752 >            rs[4].assertNotInvoked();
2753          }
2682
2683        checkCompletedWithWrappedCFException(g, ex);
2684        checkCompletedNormally(f, v1);
2685    }}
2686
2687    public void testRunAfterEither_exceptionalCompletion4() {
2688        for (ExecutionMode m : ExecutionMode.values())
2689        for (Integer v1 : new Integer[] { 1, null })
2690    {
2691        final CompletableFuture<Integer> f = new CompletableFuture<>();
2692        final CompletableFuture<Integer> g = new CompletableFuture<>();
2693        final Noop r = new Noop();
2694        final CFException ex = new CFException();
2695
2696        f.completeExceptionally(ex);
2697        g.complete(v1);
2698        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2699
2700        // unspecified behavior
2701        Integer v;
2754          try {
2755 <            assertNull(h.join());
2756 <            assertEquals(1, r.invocationCount);
2755 >            assertNull(h5.join());
2756 >            rs[5].assertInvoked();
2757          } catch (CompletionException ok) {
2758 <            checkCompletedWithWrappedCFException(h, ex);
2759 <            assertEquals(0, r.invocationCount);
2758 >            checkCompletedWithWrappedException(h5, ex);
2759 >            rs[5].assertNotInvoked();
2760          }
2761  
2762 <        checkCompletedWithWrappedCFException(f, ex);
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 <    /**
2715 <     * runAfterEither result completes exceptionally if action does
2716 <     */
2717 <    public void testRunAfterEither_actionFailed1() {
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 })
2720        for (Integer v2 : new Integer[] { 2, null })
2776      {
2777          final CompletableFuture<Integer> f = new CompletableFuture<>();
2778          final CompletableFuture<Integer> g = new CompletableFuture<>();
2779 <        final FailingNoop r = new FailingNoop();
2780 <        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
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 <        f.complete(v1);
2784 <        checkCompletedWithWrappedCFException(h);
2785 <        g.complete(v2);
2786 <        checkCompletedNormally(f, v1);
2787 <        checkCompletedNormally(g, v2);
2788 <    }}
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 <    public void testRunAfterEither_actionFailed2() {
2791 <        for (ExecutionMode m : ExecutionMode.values())
2792 <        for (Integer v1 : new Integer[] { 1, null })
2793 <        for (Integer v2 : new Integer[] { 2, null })
2794 <    {
2795 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
2796 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
2797 <        final FailingNoop r = new FailingNoop();
2798 <        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
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  
2744        g.complete(v2);
2745        checkCompletedWithWrappedCFException(h);
2746        f.complete(v1);
2820          checkCompletedNormally(f, v1);
2821 <        checkCompletedNormally(g, v2);
2821 >        checkCompletedExceptionally(g, ex);
2822      }}
2823  
2824      /**
2825       * runAfterEither result completes exceptionally if either source cancelled
2826       */
2827 <    public void testRunAfterEither_sourceCancelled1() {
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 r = new Noop();
2835 <        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2834 >        final Noop[] rs = new Noop[6];
2835 >        for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2836  
2837 <        assertTrue(f.cancel(mayInterruptIfRunning));
2838 <        checkCompletedWithWrappedCancellationException(h);
2839 <        g.complete(v1);
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 <        checkCancelled(f);
2769 <        assertEquals(0, r.invocationCount);
2770 <        checkCompletedNormally(g, v1);
2771 <        checkCompletedWithWrappedCancellationException(h);
2772 <    }}
2851 >        assertTrue(g.complete(v1));
2852  
2853 <    public void testRunAfterEither_sourceCancelled2() {
2854 <        for (ExecutionMode m : ExecutionMode.values())
2855 <        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2777 <        for (Integer v1 : new Integer[] { 1, null })
2778 <    {
2779 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
2780 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
2781 <        final Noop r = new Noop();
2782 <        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2783 <
2784 <        assertTrue(g.cancel(mayInterruptIfRunning));
2785 <        checkCompletedWithWrappedCancellationException(h);
2786 <        f.complete(v1);
2787 <
2788 <        checkCancelled(g);
2789 <        assertEquals(0, r.invocationCount);
2790 <        checkCompletedNormally(f, v1);
2791 <        checkCompletedWithWrappedCancellationException(h);
2792 <    }}
2793 <
2794 <    public void testRunAfterEither_sourceCancelled3() {
2795 <        for (ExecutionMode m : ExecutionMode.values())
2796 <        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2797 <        for (Integer v1 : new Integer[] { 1, null })
2798 <    {
2799 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
2800 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
2801 <        final Noop r = new Noop();
2802 <
2803 <        assertTrue(g.cancel(mayInterruptIfRunning));
2804 <        f.complete(v1);
2805 <        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2806 <
2807 <        // unspecified behavior
2808 <        Integer v;
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(h.join());
2858 <            assertEquals(1, r.invocationCount);
2857 >            assertNull(h4.join());
2858 >            rs[4].assertInvoked();
2859          } catch (CompletionException ok) {
2860 <            checkCompletedWithWrappedCancellationException(h);
2861 <            assertEquals(0, r.invocationCount);
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 <        checkCancelled(g);
2872 <        checkCompletedNormally(f, v1);
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 <    public void testRunAfterEither_sourceCancelled4() {
2880 >    /**
2881 >     * runAfterEither result completes exceptionally if action does
2882 >     */
2883 >    public void testRunAfterEither_actionFailed() {
2884          for (ExecutionMode m : ExecutionMode.values())
2823        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
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 Noop r = new Noop();
2890 >        final FailingRunnable[] rs = new FailingRunnable[6];
2891 >        for (int i = 0; i < rs.length; i++) rs[i] = new FailingRunnable(m);
2892  
2893 <        assertTrue(f.cancel(mayInterruptIfRunning));
2894 <        g.complete(v1);
2895 <        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
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 <        // unspecified behavior
2910 <        Integer v;
2911 <        try {
2837 <            assertNull(h.join());
2838 <            assertEquals(1, r.invocationCount);
2839 <        } catch (CompletionException ok) {
2840 <            checkCompletedWithWrappedCancellationException(h);
2841 <            assertEquals(0, r.invocationCount);
2842 <        }
2843 <
2844 <        checkCancelled(f);
2845 <        checkCompletedNormally(g, v1);
2909 >        checkCompletedNormally(f, v1);
2910 >        checkCompletedNormally(g, v2);
2911 >        for (int i = 0; i < 6; i++) rs[i].assertInvoked();
2912      }}
2913  
2914      /**
# Line 2854 | Line 2920 | public class CompletableFutureTest exten
2920          for (Integer v1 : new Integer[] { 1, null })
2921      {
2922          final CompletableFuture<Integer> f = new CompletableFuture<>();
2923 <        final CompletableFutureInc r = new CompletableFutureInc();
2924 <        if (!createIncomplete) f.complete(v1);
2925 <        final CompletableFuture<Integer> g = f.thenCompose(r);
2926 <        if (createIncomplete) f.complete(v1);
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 <        assertEquals(1, r.invocationCount);
2930 >        r.assertValue(v1);
2931      }}
2932  
2933      /**
# Line 2873 | Line 2939 | public class CompletableFutureTest exten
2939          for (boolean createIncomplete : new boolean[] { true, false })
2940      {
2941          final CFException ex = new CFException();
2942 <        final CompletableFutureInc r = new CompletableFutureInc();
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 = f.thenCompose(r);
2945 >        final CompletableFuture<Integer> g = m.thenCompose(f, r);
2946          if (createIncomplete) f.completeExceptionally(ex);
2947  
2948 <        checkCompletedWithWrappedCFException(g, ex);
2949 <        checkCompletedWithWrappedCFException(f, ex);
2950 <        assertEquals(0, r.invocationCount);
2948 >        checkCompletedWithWrappedException(g, ex);
2949 >        checkCompletedExceptionally(f, ex);
2950 >        r.assertNotInvoked();
2951      }}
2952  
2953      /**
# Line 2894 | Line 2960 | public class CompletableFutureTest exten
2960      {
2961          final CompletableFuture<Integer> f = new CompletableFuture<>();
2962          final FailingCompletableFutureFunction r
2963 <            = new FailingCompletableFutureFunction();
2964 <        if (!createIncomplete) f.complete(v1);
2965 <        final CompletableFuture<Integer> g = f.thenCompose(r);
2966 <        if (createIncomplete) f.complete(v1);
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  
2968          checkCompletedWithWrappedCFException(g);
2969          checkCompletedNormally(f, v1);
# Line 2912 | Line 2978 | public class CompletableFutureTest exten
2978          for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2979      {
2980          final CompletableFuture<Integer> f = new CompletableFuture<>();
2981 <        final CompletableFutureInc r = new CompletableFutureInc();
2981 >        final CompletableFutureInc r = new CompletableFutureInc(m);
2982          if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
2983 <        final CompletableFuture<Integer> g = f.thenCompose(r);
2984 <        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  
2989          checkCompletedWithWrappedCancellationException(g);
2990          checkCancelled(f);
2991      }}
2992  
2924    // asyncs
2925
2926    /**
2927     * thenApplyAsync result completes normally after normal completion of source
2928     */
2929    public void testThenApplyAsync() {
2930        CompletableFuture<Integer> f = new CompletableFuture<>();
2931        CompletableFuture<Integer> g = f.thenApplyAsync(inc);
2932        f.complete(one);
2933        checkCompletedNormally(g, two);
2934    }
2935
2936    /**
2937     * thenApplyAsync result completes exceptionally after exceptional
2938     * completion of source
2939     */
2940    public void testThenApplyAsync2() {
2941        CompletableFuture<Integer> f = new CompletableFuture<>();
2942        CompletableFuture<Integer> g = f.thenApplyAsync(inc);
2943        f.completeExceptionally(new CFException());
2944        checkCompletedWithWrappedCFException(g);
2945    }
2946
2947    /**
2948     * thenApplyAsync result completes exceptionally if action does
2949     */
2950    public void testThenApplyAsync3() {
2951        CompletableFuture<Integer> f = new CompletableFuture<>();
2952        FailingFunction r = new FailingFunction();
2953        CompletableFuture<Integer> g = f.thenApplyAsync(r);
2954        f.complete(null);
2955        checkCompletedWithWrappedCFException(g);
2956    }
2957
2958    /**
2959     * thenApplyAsync result completes exceptionally if source cancelled
2960     */
2961    public void testThenApplyAsync4() {
2962        CompletableFuture<Integer> f = new CompletableFuture<>();
2963        CompletableFuture<Integer> g = f.thenApplyAsync(inc);
2964        assertTrue(f.cancel(true));
2965        checkCompletedWithWrappedCancellationException(g);
2966    }
2967
2968    /**
2969     * thenAcceptAsync result completes normally after normal
2970     * completion of source
2971     */
2972    public void testThenAcceptAsync() {
2973        CompletableFuture<Integer> f = new CompletableFuture<>();
2974        IncAction r = new IncAction();
2975        CompletableFuture<Void> g = f.thenAcceptAsync(r);
2976        f.complete(one);
2977        checkCompletedNormally(g, null);
2978        assertEquals(r.value, (Integer) 2);
2979    }
2980
2981    /**
2982     * thenAcceptAsync result completes exceptionally after exceptional
2983     * completion of source
2984     */
2985    public void testThenAcceptAsync2() {
2986        CompletableFuture<Integer> f = new CompletableFuture<>();
2987        IncAction r = new IncAction();
2988        CompletableFuture<Void> g = f.thenAcceptAsync(r);
2989        f.completeExceptionally(new CFException());
2990        checkCompletedWithWrappedCFException(g);
2991    }
2992
2993    /**
2994     * thenAcceptAsync result completes exceptionally if action does
2995     */
2996    public void testThenAcceptAsync3() {
2997        CompletableFuture<Integer> f = new CompletableFuture<>();
2998        FailingConsumer r = new FailingConsumer();
2999        CompletableFuture<Void> g = f.thenAcceptAsync(r);
3000        f.complete(null);
3001        checkCompletedWithWrappedCFException(g);
3002    }
3003
3004    /**
3005     * thenAcceptAsync result completes exceptionally if source cancelled
3006     */
3007    public void testThenAcceptAsync4() {
3008        CompletableFuture<Integer> f = new CompletableFuture<>();
3009        IncAction r = new IncAction();
3010        CompletableFuture<Void> g = f.thenAcceptAsync(r);
3011        assertTrue(f.cancel(true));
3012        checkCompletedWithWrappedCancellationException(g);
3013    }
3014
3015    // async with explicit executors
3016
3017    /**
3018     * thenApplyAsync result completes normally after normal completion of source
3019     */
3020    public void testThenApplyAsyncE() {
3021        CompletableFuture<Integer> f = new CompletableFuture<>();
3022        CompletableFuture<Integer> g = f.thenApplyAsync(inc, new ThreadExecutor());
3023        f.complete(one);
3024        checkCompletedNormally(g, two);
3025    }
3026
3027    /**
3028     * thenApplyAsync result completes exceptionally after exceptional
3029     * completion of source
3030     */
3031    public void testThenApplyAsync2E() {
3032        CompletableFuture<Integer> f = new CompletableFuture<>();
3033        CompletableFuture<Integer> g = f.thenApplyAsync(inc, new ThreadExecutor());
3034        f.completeExceptionally(new CFException());
3035        checkCompletedWithWrappedCFException(g);
3036    }
3037
3038    /**
3039     * thenApplyAsync result completes exceptionally if action does
3040     */
3041    public void testThenApplyAsync3E() {
3042        CompletableFuture<Integer> f = new CompletableFuture<>();
3043        FailingFunction r = new FailingFunction();
3044        CompletableFuture<Integer> g = f.thenApplyAsync(r, new ThreadExecutor());
3045        f.complete(null);
3046        checkCompletedWithWrappedCFException(g);
3047    }
3048
3049    /**
3050     * thenApplyAsync result completes exceptionally if source cancelled
3051     */
3052    public void testThenApplyAsync4E() {
3053        CompletableFuture<Integer> f = new CompletableFuture<>();
3054        CompletableFuture<Integer> g = f.thenApplyAsync(inc, new ThreadExecutor());
3055        assertTrue(f.cancel(true));
3056        checkCompletedWithWrappedCancellationException(g);
3057    }
3058
3059    /**
3060     * thenAcceptAsync result completes normally after normal
3061     * completion of source
3062     */
3063    public void testThenAcceptAsyncE() {
3064        CompletableFuture<Integer> f = new CompletableFuture<>();
3065        IncAction r = new IncAction();
3066        CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
3067        f.complete(one);
3068        checkCompletedNormally(g, null);
3069        assertEquals(r.value, (Integer) 2);
3070    }
3071
3072    /**
3073     * thenAcceptAsync result completes exceptionally after exceptional
3074     * completion of source
3075     */
3076    public void testThenAcceptAsync2E() {
3077        CompletableFuture<Integer> f = new CompletableFuture<>();
3078        IncAction r = new IncAction();
3079        CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
3080        f.completeExceptionally(new CFException());
3081        checkCompletedWithWrappedCFException(g);
3082    }
3083
3084    /**
3085     * thenAcceptAsync result completes exceptionally if action does
3086     */
3087    public void testThenAcceptAsync3E() {
3088        CompletableFuture<Integer> f = new CompletableFuture<>();
3089        FailingConsumer r = new FailingConsumer();
3090        CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
3091        f.complete(null);
3092        checkCompletedWithWrappedCFException(g);
3093    }
3094
3095    /**
3096     * thenAcceptAsync result completes exceptionally if source cancelled
3097     */
3098    public void testThenAcceptAsync4E() {
3099        CompletableFuture<Integer> f = new CompletableFuture<>();
3100        IncAction r = new IncAction();
3101        CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
3102        assertTrue(f.cancel(true));
3103        checkCompletedWithWrappedCancellationException(g);
3104    }
3105
2993      // other static methods
2994  
2995      /**
# Line 3119 | Line 3006 | public class CompletableFutureTest exten
3006       * when all components complete normally
3007       */
3008      public void testAllOf_normal() throws Exception {
3009 <        for (int k = 1; k < 20; ++k) {
3010 <            CompletableFuture<Integer>[] fs = (CompletableFuture<Integer>[]) new CompletableFuture[k];
3011 <            for (int i = 0; i < k; ++i)
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);
# Line 3134 | Line 3039 | public class CompletableFutureTest exten
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 +
3066      /**
3067       * anyOf(no component futures) returns an incomplete future
3068       */
3069      public void testAnyOf_empty() throws Exception {
3070 +        for (Integer v1 : new Integer[] { 1, null })
3071 +    {
3072          CompletableFuture<Object> f = CompletableFuture.anyOf();
3073          checkIncomplete(f);
3074 <    }
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) {
3084 >        for (int k = 0; k < 10; k++) {
3085              CompletableFuture[] fs = new CompletableFuture[k];
3086 <            for (int i = 0; i < k; ++i)
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(one);
3092 <                checkCompletedNormally(f, one);
3093 <                checkCompletedNormally(CompletableFuture.anyOf(fs), one);
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      }
# Line 3165 | Line 3115 | public class CompletableFutureTest exten
3115       * anyOf result completes exceptionally when any component does.
3116       */
3117      public void testAnyOf_exceptional() throws Exception {
3118 <        for (int k = 0; k < 10; ++k) {
3118 >        for (int k = 0; k < 10; k++) {
3119              CompletableFuture[] fs = new CompletableFuture[k];
3120 <            for (int i = 0; i < k; ++i)
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].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 = 0; i < k; ++i) {
3146 <                fs[i].completeExceptionally(new CFException());
3147 <                checkCompletedWithWrappedCFException(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          }
# Line 3192 | Line 3163 | public class CompletableFutureTest exten
3163          Runnable[] throwingActions = {
3164              () -> CompletableFuture.supplyAsync(null),
3165              () -> CompletableFuture.supplyAsync(null, exec),
3166 <            () -> CompletableFuture.supplyAsync(supplyOne, null),
3166 >            () -> CompletableFuture.supplyAsync(new IntegerSupplier(ExecutionMode.SYNC, 42), null),
3167  
3168              () -> CompletableFuture.runAsync(null),
3169              () -> CompletableFuture.runAsync(null, exec),
# Line 3265 | Line 3236 | public class CompletableFutureTest exten
3236  
3237              () -> f.thenCompose(null),
3238              () -> f.thenComposeAsync(null),
3239 <            () -> f.thenComposeAsync(new CompletableFutureInc(), null),
3239 >            () -> f.thenComposeAsync(new CompletableFutureInc(ExecutionMode.EXECUTOR), null),
3240              () -> f.thenComposeAsync(null, exec),
3241  
3242              () -> f.exceptionally(null),
# Line 3297 | Line 3268 | public class CompletableFutureTest exten
3268          assertSame(f, f.toCompletableFuture());
3269      }
3270  
3271 <    /**
3301 <     * whenComplete action executes on normal completion, propagating
3302 <     * source result.
3303 <     */
3304 <    public void testWhenComplete_normalCompletion1() {
3305 <        for (ExecutionMode m : ExecutionMode.values())
3306 <        for (boolean createIncomplete : new boolean[] { true, false })
3307 <        for (Integer v1 : new Integer[] { 1, null })
3308 <    {
3309 <        final AtomicInteger a = new AtomicInteger(0);
3310 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
3311 <        if (!createIncomplete) f.complete(v1);
3312 <        final CompletableFuture<Integer> g = m.whenComplete
3313 <            (f,
3314 <             (Integer x, Throwable t) -> {
3315 <                threadAssertSame(x, v1);
3316 <                threadAssertNull(t);
3317 <                a.getAndIncrement();
3318 <            });
3319 <        if (createIncomplete) f.complete(v1);
3271 >    //--- tests of implementation details; not part of official tck ---
3272  
3273 <        checkCompletedNormally(g, v1);
3274 <        checkCompletedNormally(f, v1);
3275 <        assertEquals(1, a.get());
3276 <    }}
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 <    /**
3283 <     * whenComplete action executes on exceptional completion, propagating
3328 <     * source result.
3329 <     */
3330 <    public void testWhenComplete_exceptionalCompletion() {
3282 >    public void testExceptionPropagationReusesResultObject() {
3283 >        if (!testImplementationDetails) return;
3284          for (ExecutionMode m : ExecutionMode.values())
3332        for (boolean createIncomplete : new boolean[] { true, false })
3333        for (Integer v1 : new Integer[] { 1, null })
3285      {
3335        final AtomicInteger a = new AtomicInteger(0);
3286          final CFException ex = new CFException();
3287 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
3288 <        if (!createIncomplete) f.completeExceptionally(ex);
3339 <        final CompletableFuture<Integer> g = m.whenComplete
3340 <            (f,
3341 <             (Integer x, Throwable t) -> {
3342 <                threadAssertNull(x);
3343 <                threadAssertSame(t, ex);
3344 <                a.getAndIncrement();
3345 <            });
3346 <        if (createIncomplete) f.completeExceptionally(ex);
3347 <        checkCompletedWithWrappedCFException(f, ex);
3348 <        checkCompletedWithWrappedCFException(g, ex);
3349 <        assertEquals(1, a.get());
3350 <    }}
3287 >        final CompletableFuture<Integer> v42 = CompletableFuture.completedFuture(42);
3288 >        final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3289  
3290 <    /**
3291 <     * whenComplete action executes on cancelled source, propagating
3354 <     * CancellationException.
3355 <     */
3356 <    public void testWhenComplete_sourceCancelled() {
3357 <        for (ExecutionMode m : ExecutionMode.values())
3358 <        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3359 <        for (boolean createIncomplete : new boolean[] { true, false })
3360 <    {
3361 <        final AtomicInteger a = new AtomicInteger(0);
3362 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
3363 <        if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
3364 <        final CompletableFuture<Integer> g = m.whenComplete
3365 <            (f,
3366 <             (Integer x, Throwable t) -> {
3367 <                threadAssertNull(x);
3368 <                threadAssertTrue(t instanceof CancellationException);
3369 <                a.getAndIncrement();
3370 <            });
3371 <        if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
3290 >        List<Function<CompletableFuture<Integer>, CompletableFuture<?>>> funs
3291 >            = new ArrayList<>();
3292  
3293 <        //try { g.join(); } catch (Throwable t) { throw new Error(t); }
3294 <        checkCompletedWithWrappedCancellationException(g);
3295 <        checkCancelled(f);
3376 <        assertEquals(1, a.get());
3377 <    }}
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 <    /**
3298 <     * If a whenComplete action throws an exception when triggered by
3299 <     * a normal completion, it completes exceptionally
3382 <     */
3383 <    public void testWhenComplete_actionFailed() {
3384 <        for (boolean createIncomplete : new boolean[] { true, false })
3385 <        for (ExecutionMode m : ExecutionMode.values())
3386 <        for (Integer v1 : new Integer[] { 1, null })
3387 <    {
3388 <        final AtomicInteger a = new AtomicInteger(0);
3389 <        final CFException ex = new CFException();
3390 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
3391 <        if (!createIncomplete) f.complete(v1);
3392 <        final CompletableFuture<Integer> g = m.whenComplete
3393 <            (f,
3394 <             (Integer x, Throwable t) -> {
3395 <                threadAssertSame(x, v1);
3396 <                threadAssertNull(t);
3397 <                a.getAndIncrement();
3398 <                throw ex;
3399 <            });
3400 <        if (createIncomplete) f.complete(v1);
3401 <        checkCompletedNormally(f, v1);
3402 <        checkCompletedWithWrappedCFException(g, ex);
3403 <        assertEquals(1, a.get());
3404 <    }}
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 <    /**
3302 <     * If a whenComplete action throws an exception when triggered by
3303 <     * a source completion that also throws an exception, the source
3409 <     * exception takes precedence.
3410 <     */
3411 <    public void testWhenComplete_actionFailedSourceFailed() {
3412 <        for (boolean createIncomplete : new boolean[] { true, false })
3413 <        for (ExecutionMode m : ExecutionMode.values())
3414 <        for (Integer v1 : new Integer[] { 1, null })
3415 <    {
3416 <        final AtomicInteger a = new AtomicInteger(0);
3417 <        final CFException ex1 = new CFException();
3418 <        final CFException ex2 = new CFException();
3419 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
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 <        if (!createIncomplete) f.completeExceptionally(ex1);
3422 <        final CompletableFuture<Integer> g = m.whenComplete
3423 <            (f,
3424 <             (Integer x, Throwable t) -> {
3425 <                threadAssertSame(t, ex1);
3426 <                threadAssertNull(x);
3427 <                a.getAndIncrement();
3428 <                throw ex2;
3429 <            });
3430 <        if (createIncomplete) f.completeExceptionally(ex1);
3305 >        funs.add((y) -> m.whenComplete(y, (Integer x, Throwable t) -> {}));
3306  
3307 <        checkCompletedWithWrappedCFException(f, ex1);
3308 <        checkCompletedWithWrappedCFException(g, ex1);
3309 <        assertEquals(1, a.get());
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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