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Comparing jsr166/src/test/tck/CompletableFutureTest.java (file contents):
Revision 1.55 by jsr166, Mon Jun 2 21:41:37 2014 UTC vs.
Revision 1.77 by jsr166, Sat Jun 7 21:46:50 2014 UTC

# Line 105 | Line 105 | public class CompletableFutureTest exten
105          assertTrue(f.toString().contains("[Completed exceptionally]"));
106      }
107  
108 <    void checkCompletedWithWrappedCFException(CompletableFuture<?> f,
109 <                                              CFException ex) {
108 >    <U> void checkCompletedExceptionallyWithRootCause(CompletableFuture<U> f,
109 >                                                      Throwable ex) {
110          try {
111              f.get(LONG_DELAY_MS, MILLISECONDS);
112              shouldThrow();
# Line 131 | Line 131 | public class CompletableFutureTest exten
131          } catch (ExecutionException success) {
132              assertSame(ex, success.getCause());
133          } catch (Throwable fail) { threadUnexpectedException(fail); }
134 +
135          assertTrue(f.isDone());
136          assertFalse(f.isCancelled());
137          assertTrue(f.toString().contains("[Completed exceptionally]"));
138      }
139  
140 +    <U> void checkCompletedWithWrappedException(CompletableFuture<U> f,
141 +                                                Throwable ex) {
142 +        checkCompletedExceptionallyWithRootCause(f, ex);
143 +        try {
144 +            CompletableFuture<Throwable> spy = f.handle
145 +                ((U u, Throwable t) -> t);
146 +            assertTrue(spy.join() instanceof CompletionException);
147 +            assertSame(ex, spy.join().getCause());
148 +        } catch (Throwable fail) { threadUnexpectedException(fail); }
149 +    }
150 +
151 +    <U> void checkCompletedExceptionally(CompletableFuture<U> f, Throwable ex) {
152 +        checkCompletedExceptionallyWithRootCause(f, ex);
153 +        try {
154 +            CompletableFuture<Throwable> spy = f.handle
155 +                ((U u, Throwable t) -> t);
156 +            assertSame(ex, spy.join());
157 +        } catch (Throwable fail) { threadUnexpectedException(fail); }
158 +    }
159 +
160      void checkCancelled(CompletableFuture<?> f) {
161          try {
162              f.get(LONG_DELAY_MS, MILLISECONDS);
# Line 218 | Line 239 | public class CompletableFutureTest exten
239       */
240      public void testCompleteExceptionally() {
241          CompletableFuture<Integer> f = new CompletableFuture<>();
242 +        CFException ex = new CFException();
243          checkIncomplete(f);
244 <        f.completeExceptionally(new CFException());
245 <        checkCompletedWithWrappedCFException(f);
244 >        f.completeExceptionally(ex);
245 >        checkCompletedExceptionally(f, ex);
246      }
247  
248      /**
# Line 261 | Line 283 | public class CompletableFutureTest exten
283       * obtrudeException forces completion with given exception
284       */
285      public void testObtrudeException() {
286 <        CompletableFuture<Integer> f = new CompletableFuture<>();
287 <        checkIncomplete(f);
288 <        f.complete(one);
289 <        checkCompletedNormally(f, one);
290 <        f.obtrudeException(new CFException());
269 <        checkCompletedWithWrappedCFException(f);
286 >        for (Integer v1 : new Integer[] { 1, null })
287 >    {
288 >        CFException ex;
289 >        CompletableFuture<Integer> f;
290 >
291          f = new CompletableFuture<>();
292 <        f.obtrudeException(new CFException());
293 <        checkCompletedWithWrappedCFException(f);
292 >        f.complete(v1);
293 >        for (int i = 0; i < 2; i++) {
294 >            f.obtrudeException(ex = new CFException());
295 >            checkCompletedExceptionally(f, ex);
296 >        }
297 >
298 >        f = new CompletableFuture<>();
299 >        for (int i = 0; i < 2; i++) {
300 >            f.obtrudeException(ex = new CFException());
301 >            checkCompletedExceptionally(f, ex);
302 >        }
303 >
304          f = new CompletableFuture<>();
305 +        f.completeExceptionally(ex = new CFException());
306 +        f.obtrudeValue(v1);
307 +        checkCompletedNormally(f, v1);
308 +        f.obtrudeException(ex = new CFException());
309 +        checkCompletedExceptionally(f, ex);
310          f.completeExceptionally(new CFException());
311 <        f.obtrudeValue(four);
312 <        checkCompletedNormally(f, four);
313 <        f.obtrudeException(new CFException());
314 <        checkCompletedWithWrappedCFException(f);
279 <    }
311 >        checkCompletedExceptionally(f, ex);
312 >        f.complete(v1);
313 >        checkCompletedExceptionally(f, ex);
314 >    }}
315  
316      /**
317       * getNumberOfDependents returns number of dependent tasks
318       */
319      public void testGetNumberOfDependents() {
320 +        for (ExecutionMode m : ExecutionMode.values())
321 +    {
322          CompletableFuture<Integer> f = new CompletableFuture<>();
323          assertEquals(0, f.getNumberOfDependents());
324 <        CompletableFuture g = f.thenRun(new Noop(ExecutionMode.DEFAULT));
324 >        final CompletableFuture<Void> g = m.thenRun(f, new Noop(m));
325          assertEquals(1, f.getNumberOfDependents());
326          assertEquals(0, g.getNumberOfDependents());
327 <        CompletableFuture h = f.thenRun(new Noop(ExecutionMode.DEFAULT));
327 >        final CompletableFuture<Void> h = m.thenRun(f, new Noop(m));
328          assertEquals(2, f.getNumberOfDependents());
329 +        assertEquals(0, h.getNumberOfDependents());
330          f.complete(1);
331          checkCompletedNormally(g, null);
332 +        checkCompletedNormally(h, null);
333          assertEquals(0, f.getNumberOfDependents());
334          assertEquals(0, g.getNumberOfDependents());
335 <    }
335 >        assertEquals(0, h.getNumberOfDependents());
336 >    }}
337  
338      /**
339       * toString indicates current completion state
# Line 310 | Line 350 | public class CompletableFutureTest exten
350          f = new CompletableFuture<String>();
351          f.completeExceptionally(new IndexOutOfBoundsException());
352          assertTrue(f.toString().contains("[Completed exceptionally]"));
353 +
354 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false }) {
355 +            f = new CompletableFuture<String>();
356 +            f.cancel(mayInterruptIfRunning);
357 +            assertTrue(f.toString().contains("[Completed exceptionally]"));
358 +        }
359      }
360  
361      /**
# Line 320 | Line 366 | public class CompletableFutureTest exten
366          checkCompletedNormally(f, "test");
367      }
368  
369 <    // Choose non-commutative actions for better coverage
369 >    abstract class CheckedAction {
370 >        int invocationCount = 0;
371 >        final ExecutionMode m;
372 >        CheckedAction(ExecutionMode m) { this.m = m; }
373 >        void invoked() {
374 >            m.checkExecutionMode();
375 >            assertEquals(0, invocationCount++);
376 >        }
377 >        void assertNotInvoked() { assertEquals(0, invocationCount); }
378 >        void assertInvoked() { assertEquals(1, invocationCount); }
379 >    }
380  
381 <    // A non-commutative function that handles and produces null values as well.
382 <    static Integer subtract(Integer x, Integer y) {
383 <        return (x == null && y == null) ? null :
384 <            ((x == null) ? 42 : x.intValue())
385 <            - ((y == null) ? 99 : y.intValue());
381 >    abstract class CheckedIntegerAction extends CheckedAction {
382 >        Integer value;
383 >        CheckedIntegerAction(ExecutionMode m) { super(m); }
384 >        void assertValue(Integer expected) {
385 >            assertInvoked();
386 >            assertEquals(expected, value);
387 >        }
388 >    }
389 >
390 >    class IntegerSupplier extends CheckedAction
391 >        implements Supplier<Integer>
392 >    {
393 >        final Integer value;
394 >        IntegerSupplier(ExecutionMode m, Integer value) {
395 >            super(m);
396 >            this.value = value;
397 >        }
398 >        public Integer get() {
399 >            invoked();
400 >            return value;
401 >        }
402      }
403  
404      // A function that handles and produces null values as well.
# Line 334 | Line 406 | public class CompletableFutureTest exten
406          return (x == null) ? null : x + 1;
407      }
408  
409 <    static final Supplier<Integer> supplyOne =
410 <        () -> Integer.valueOf(1);
411 <    static final Function<Integer, Integer> inc =
412 <        (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;
409 >    class NoopConsumer extends CheckedIntegerAction
410 >        implements Consumer<Integer>
411 >    {
412 >        NoopConsumer(ExecutionMode m) { super(m); }
413          public void accept(Integer x) {
414 <            invocationCount++;
415 <            value = inc(x);
414 >            invoked();
415 >            value = x;
416          }
417      }
418 <    static final class IncFunction implements Function<Integer,Integer> {
419 <        int invocationCount = 0;
420 <        Integer value;
418 >
419 >    class IncFunction extends CheckedIntegerAction
420 >        implements Function<Integer,Integer>
421 >    {
422 >        IncFunction(ExecutionMode m) { super(m); }
423          public Integer apply(Integer x) {
424 <            invocationCount++;
424 >            invoked();
425              return value = inc(x);
426          }
427      }
428 <    static final class SubtractAction implements BiConsumer<Integer, Integer> {
429 <        int invocationCount = 0;
430 <        Integer value;
431 <        // Check this action was invoked exactly once when result is computed.
428 >
429 >    // Choose non-commutative actions for better coverage
430 >    // A non-commutative function that handles and produces null values as well.
431 >    static Integer subtract(Integer x, Integer y) {
432 >        return (x == null && y == null) ? null :
433 >            ((x == null) ? 42 : x.intValue())
434 >            - ((y == null) ? 99 : y.intValue());
435 >    }
436 >
437 >    class SubtractAction extends CheckedIntegerAction
438 >        implements BiConsumer<Integer, Integer>
439 >    {
440 >        SubtractAction(ExecutionMode m) { super(m); }
441          public void accept(Integer x, Integer y) {
442 <            invocationCount++;
442 >            invoked();
443              value = subtract(x, y);
444          }
445      }
446 <    static final class SubtractFunction implements BiFunction<Integer, Integer, Integer> {
447 <        int invocationCount = 0;
448 <        Integer value;
449 <        // Check this action was invoked exactly once when result is computed.
446 >
447 >    class SubtractFunction extends CheckedIntegerAction
448 >        implements BiFunction<Integer, Integer, Integer>
449 >    {
450 >        SubtractFunction(ExecutionMode m) { super(m); }
451          public Integer apply(Integer x, Integer y) {
452 <            invocationCount++;
452 >            invoked();
453              return value = subtract(x, y);
454          }
455      }
456 <    static final class Noop implements Runnable {
457 <        final ExecutionMode m;
458 <        int invocationCount = 0;
380 <        Noop(ExecutionMode m) { this.m = m; }
456 >
457 >    class Noop extends CheckedAction implements Runnable {
458 >        Noop(ExecutionMode m) { super(m); }
459          public void run() {
460 <            m.checkExecutionMode();
383 <            invocationCount++;
460 >            invoked();
461          }
462      }
463  
464 <    static final class FailingSupplier implements Supplier<Integer> {
465 <        int invocationCount = 0;
464 >    class FailingSupplier extends CheckedAction
465 >        implements Supplier<Integer>
466 >    {
467 >        FailingSupplier(ExecutionMode m) { super(m); }
468          public Integer get() {
469 <            invocationCount++;
469 >            invoked();
470              throw new CFException();
471          }
472      }
473 <    static final class FailingConsumer implements Consumer<Integer> {
474 <        int invocationCount = 0;
473 >
474 >    class FailingConsumer extends CheckedIntegerAction
475 >        implements Consumer<Integer>
476 >    {
477 >        FailingConsumer(ExecutionMode m) { super(m); }
478          public void accept(Integer x) {
479 <            invocationCount++;
479 >            invoked();
480 >            value = x;
481              throw new CFException();
482          }
483      }
484 <    static final class FailingBiConsumer implements BiConsumer<Integer, Integer> {
485 <        int invocationCount = 0;
484 >
485 >    class FailingBiConsumer extends CheckedIntegerAction
486 >        implements BiConsumer<Integer, Integer>
487 >    {
488 >        FailingBiConsumer(ExecutionMode m) { super(m); }
489          public void accept(Integer x, Integer y) {
490 <            invocationCount++;
490 >            invoked();
491 >            value = subtract(x, y);
492              throw new CFException();
493          }
494      }
495 <    static final class FailingFunction implements Function<Integer, Integer> {
496 <        int invocationCount = 0;
495 >
496 >    class FailingFunction extends CheckedIntegerAction
497 >        implements Function<Integer, Integer>
498 >    {
499 >        FailingFunction(ExecutionMode m) { super(m); }
500          public Integer apply(Integer x) {
501 <            invocationCount++;
501 >            invoked();
502 >            value = x;
503              throw new CFException();
504          }
505      }
506 <    static final class FailingBiFunction implements BiFunction<Integer, Integer, Integer> {
507 <        int invocationCount = 0;
506 >
507 >    class FailingBiFunction extends CheckedIntegerAction
508 >        implements BiFunction<Integer, Integer, Integer>
509 >    {
510 >        FailingBiFunction(ExecutionMode m) { super(m); }
511          public Integer apply(Integer x, Integer y) {
512 <            invocationCount++;
512 >            invoked();
513 >            value = subtract(x, y);
514              throw new CFException();
515          }
516      }
517 <    static final class FailingRunnable implements Runnable {
518 <        int invocationCount = 0;
517 >
518 >    class FailingRunnable extends CheckedAction implements Runnable {
519 >        FailingRunnable(ExecutionMode m) { super(m); }
520          public void run() {
521 <            invocationCount++;
521 >            invoked();
522              throw new CFException();
523          }
524      }
525  
526 <    static final class CompletableFutureInc
527 <        implements Function<Integer, CompletableFuture<Integer>> {
528 <        int invocationCount = 0;
526 >
527 >    class CompletableFutureInc extends CheckedIntegerAction
528 >        implements Function<Integer, CompletableFuture<Integer>>
529 >    {
530 >        CompletableFutureInc(ExecutionMode m) { super(m); }
531          public CompletableFuture<Integer> apply(Integer x) {
532 <            invocationCount++;
532 >            invoked();
533 >            value = x;
534              CompletableFuture<Integer> f = new CompletableFuture<>();
535              f.complete(inc(x));
536              return f;
537          }
538      }
539  
540 <    static final class FailingCompletableFutureFunction
541 <        implements Function<Integer, CompletableFuture<Integer>> {
542 <        int invocationCount = 0;
540 >    class FailingCompletableFutureFunction extends CheckedIntegerAction
541 >        implements Function<Integer, CompletableFuture<Integer>>
542 >    {
543 >        FailingCompletableFutureFunction(ExecutionMode m) { super(m); }
544          public CompletableFuture<Integer> apply(Integer x) {
545 <            invocationCount++;
545 >            invoked();
546 >            value = x;
547              throw new CFException();
548          }
549      }
550  
551      // Used for explicit executor tests
552      static final class ThreadExecutor implements Executor {
553 <        AtomicInteger count = new AtomicInteger(0);
553 >        final AtomicInteger count = new AtomicInteger(0);
554 >        static final ThreadGroup tg = new ThreadGroup("ThreadExecutor");
555 >        static boolean startedCurrentThread() {
556 >            return Thread.currentThread().getThreadGroup() == tg;
557 >        }
558  
559          public void execute(Runnable r) {
560              count.getAndIncrement();
561 <            new Thread(r).start();
561 >            new Thread(tg, r).start();
562          }
563      }
564  
565      /**
566       * Permits the testing of parallel code for the 3 different
567 <     * execution modes without repeating all the testing code.
567 >     * execution modes without copy/pasting all the test methods.
568       */
569      enum ExecutionMode {
570          DEFAULT {
571              public void checkExecutionMode() {
572 +                assertFalse(ThreadExecutor.startedCurrentThread());
573                  assertNull(ForkJoinTask.getPool());
574              }
575 +            public CompletableFuture<Void> runAsync(Runnable a) {
576 +                throw new UnsupportedOperationException();
577 +            }
578 +            public <U> CompletableFuture<U> supplyAsync(Supplier<U> a) {
579 +                throw new UnsupportedOperationException();
580 +            }
581              public <T> CompletableFuture<Void> thenRun
582                  (CompletableFuture<T> f, Runnable a) {
583                  return f.thenRun(a);
# Line 534 | Line 646 | public class CompletableFutureTest exten
646                  assertSame(ForkJoinPool.commonPool(),
647                             ForkJoinTask.getPool());
648              }
649 +            public CompletableFuture<Void> runAsync(Runnable a) {
650 +                return CompletableFuture.runAsync(a);
651 +            }
652 +            public <U> CompletableFuture<U> supplyAsync(Supplier<U> a) {
653 +                return CompletableFuture.supplyAsync(a);
654 +            }
655              public <T> CompletableFuture<Void> thenRun
656                  (CompletableFuture<T> f, Runnable a) {
657                  return f.thenRunAsync(a);
# Line 599 | Line 717 | public class CompletableFutureTest exten
717  
718          EXECUTOR {
719              public void checkExecutionMode() {
720 <                //TODO
720 >                assertTrue(ThreadExecutor.startedCurrentThread());
721 >            }
722 >            public CompletableFuture<Void> runAsync(Runnable a) {
723 >                return CompletableFuture.runAsync(a, new ThreadExecutor());
724 >            }
725 >            public <U> CompletableFuture<U> supplyAsync(Supplier<U> a) {
726 >                return CompletableFuture.supplyAsync(a, new ThreadExecutor());
727              }
728              public <T> CompletableFuture<Void> thenRun
729                  (CompletableFuture<T> f, Runnable a) {
# Line 665 | Line 789 | public class CompletableFutureTest exten
789          };
790  
791          public abstract void checkExecutionMode();
792 +        public abstract CompletableFuture<Void> runAsync(Runnable a);
793 +        public abstract <U> CompletableFuture<U> supplyAsync(Supplier<U> a);
794          public abstract <T> CompletableFuture<Void> thenRun
795              (CompletableFuture<T> f, Runnable a);
796          public abstract <T> CompletableFuture<Void> thenAccept
# Line 728 | Line 854 | public class CompletableFutureTest exten
854          assertEquals(0, a.get());
855      }}
856  
731
857      /**
858       * exceptionally action completes with function value on source
859       * exception
# Line 743 | Line 868 | public class CompletableFutureTest exten
868          if (!createIncomplete) f.completeExceptionally(ex);
869          final CompletableFuture<Integer> g = f.exceptionally
870              ((Throwable t) -> {
871 +                ExecutionMode.DEFAULT.checkExecutionMode();
872                  threadAssertSame(t, ex);
873                  a.getAndIncrement();
874                  return v1;
# Line 764 | Line 890 | public class CompletableFutureTest exten
890          if (!createIncomplete) f.completeExceptionally(ex1);
891          final CompletableFuture<Integer> g = f.exceptionally
892              ((Throwable t) -> {
893 +                ExecutionMode.DEFAULT.checkExecutionMode();
894                  threadAssertSame(t, ex1);
895                  a.getAndIncrement();
896                  throw ex2;
897              });
898          if (createIncomplete) f.completeExceptionally(ex1);
899  
900 <        checkCompletedWithWrappedCFException(g, ex2);
900 >        checkCompletedWithWrappedException(g, ex2);
901 >        assertEquals(1, a.get());
902 >    }}
903 >
904 >    /**
905 >     * whenComplete action executes on normal completion, propagating
906 >     * source result.
907 >     */
908 >    public void testWhenComplete_normalCompletion1() {
909 >        for (ExecutionMode m : ExecutionMode.values())
910 >        for (boolean createIncomplete : new boolean[] { true, false })
911 >        for (Integer v1 : new Integer[] { 1, null })
912 >    {
913 >        final AtomicInteger a = new AtomicInteger(0);
914 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
915 >        if (!createIncomplete) f.complete(v1);
916 >        final CompletableFuture<Integer> g = m.whenComplete
917 >            (f,
918 >             (Integer x, Throwable t) -> {
919 >                m.checkExecutionMode();
920 >                threadAssertSame(x, v1);
921 >                threadAssertNull(t);
922 >                a.getAndIncrement();
923 >            });
924 >        if (createIncomplete) f.complete(v1);
925 >
926 >        checkCompletedNormally(g, v1);
927 >        checkCompletedNormally(f, v1);
928 >        assertEquals(1, a.get());
929 >    }}
930 >
931 >    /**
932 >     * whenComplete action executes on exceptional completion, propagating
933 >     * source result.
934 >     */
935 >    public void testWhenComplete_exceptionalCompletion() {
936 >        for (ExecutionMode m : ExecutionMode.values())
937 >        for (boolean createIncomplete : new boolean[] { true, false })
938 >        for (Integer v1 : new Integer[] { 1, null })
939 >    {
940 >        final AtomicInteger a = new AtomicInteger(0);
941 >        final CFException ex = new CFException();
942 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
943 >        if (!createIncomplete) f.completeExceptionally(ex);
944 >        final CompletableFuture<Integer> g = m.whenComplete
945 >            (f,
946 >             (Integer x, Throwable t) -> {
947 >                m.checkExecutionMode();
948 >                threadAssertNull(x);
949 >                threadAssertSame(t, ex);
950 >                a.getAndIncrement();
951 >            });
952 >        if (createIncomplete) f.completeExceptionally(ex);
953 >
954 >        checkCompletedWithWrappedException(g, ex);
955 >        checkCompletedExceptionally(f, ex);
956 >        assertEquals(1, a.get());
957 >    }}
958 >
959 >    /**
960 >     * whenComplete action executes on cancelled source, propagating
961 >     * CancellationException.
962 >     */
963 >    public void testWhenComplete_sourceCancelled() {
964 >        for (ExecutionMode m : ExecutionMode.values())
965 >        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
966 >        for (boolean createIncomplete : new boolean[] { true, false })
967 >    {
968 >        final AtomicInteger a = new AtomicInteger(0);
969 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
970 >        if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
971 >        final CompletableFuture<Integer> g = m.whenComplete
972 >            (f,
973 >             (Integer x, Throwable t) -> {
974 >                m.checkExecutionMode();
975 >                threadAssertNull(x);
976 >                threadAssertTrue(t instanceof CancellationException);
977 >                a.getAndIncrement();
978 >            });
979 >        if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
980 >
981 >        checkCompletedWithWrappedCancellationException(g);
982 >        checkCancelled(f);
983 >        assertEquals(1, a.get());
984 >    }}
985 >
986 >    /**
987 >     * If a whenComplete action throws an exception when triggered by
988 >     * a normal completion, it completes exceptionally
989 >     */
990 >    public void testWhenComplete_actionFailed() {
991 >        for (boolean createIncomplete : new boolean[] { true, false })
992 >        for (ExecutionMode m : ExecutionMode.values())
993 >        for (Integer v1 : new Integer[] { 1, null })
994 >    {
995 >        final AtomicInteger a = new AtomicInteger(0);
996 >        final CFException ex = new CFException();
997 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
998 >        if (!createIncomplete) f.complete(v1);
999 >        final CompletableFuture<Integer> g = m.whenComplete
1000 >            (f,
1001 >             (Integer x, Throwable t) -> {
1002 >                m.checkExecutionMode();
1003 >                threadAssertSame(x, v1);
1004 >                threadAssertNull(t);
1005 >                a.getAndIncrement();
1006 >                throw ex;
1007 >            });
1008 >        if (createIncomplete) f.complete(v1);
1009 >
1010 >        checkCompletedWithWrappedException(g, ex);
1011 >        checkCompletedNormally(f, v1);
1012 >        assertEquals(1, a.get());
1013 >    }}
1014 >
1015 >    /**
1016 >     * If a whenComplete action throws an exception when triggered by
1017 >     * a source completion that also throws an exception, the source
1018 >     * exception takes precedence.
1019 >     */
1020 >    public void testWhenComplete_actionFailedSourceFailed() {
1021 >        for (boolean createIncomplete : new boolean[] { true, false })
1022 >        for (ExecutionMode m : ExecutionMode.values())
1023 >        for (Integer v1 : new Integer[] { 1, null })
1024 >    {
1025 >        final AtomicInteger a = new AtomicInteger(0);
1026 >        final CFException ex1 = new CFException();
1027 >        final CFException ex2 = new CFException();
1028 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1029 >
1030 >        if (!createIncomplete) f.completeExceptionally(ex1);
1031 >        final CompletableFuture<Integer> g = m.whenComplete
1032 >            (f,
1033 >             (Integer x, Throwable t) -> {
1034 >                m.checkExecutionMode();
1035 >                threadAssertSame(t, ex1);
1036 >                threadAssertNull(x);
1037 >                a.getAndIncrement();
1038 >                throw ex2;
1039 >            });
1040 >        if (createIncomplete) f.completeExceptionally(ex1);
1041 >
1042 >        checkCompletedWithWrappedException(g, ex1);
1043 >        checkCompletedExceptionally(f, ex1);
1044          assertEquals(1, a.get());
1045      }}
1046  
# Line 789 | Line 1059 | public class CompletableFutureTest exten
1059          final CompletableFuture<Integer> g = m.handle
1060              (f,
1061               (Integer x, Throwable t) -> {
1062 +                m.checkExecutionMode();
1063                  threadAssertSame(x, v1);
1064                  threadAssertNull(t);
1065                  a.getAndIncrement();
# Line 817 | Line 1088 | public class CompletableFutureTest exten
1088          final CompletableFuture<Integer> g = m.handle
1089              (f,
1090               (Integer x, Throwable t) -> {
1091 +                m.checkExecutionMode();
1092                  threadAssertNull(x);
1093                  threadAssertSame(t, ex);
1094                  a.getAndIncrement();
# Line 825 | Line 1097 | public class CompletableFutureTest exten
1097          if (createIncomplete) f.completeExceptionally(ex);
1098  
1099          checkCompletedNormally(g, v1);
1100 <        checkCompletedWithWrappedCFException(f, ex);
1100 >        checkCompletedExceptionally(f, ex);
1101          assertEquals(1, a.get());
1102      }}
1103  
# Line 845 | Line 1117 | public class CompletableFutureTest exten
1117          final CompletableFuture<Integer> g = m.handle
1118              (f,
1119               (Integer x, Throwable t) -> {
1120 +                m.checkExecutionMode();
1121                  threadAssertNull(x);
1122                  threadAssertTrue(t instanceof CancellationException);
1123                  a.getAndIncrement();
# Line 872 | Line 1145 | public class CompletableFutureTest exten
1145          final CompletableFuture<Integer> g = m.handle
1146              (f,
1147               (Integer x, Throwable t) -> {
1148 +                m.checkExecutionMode();
1149                  threadAssertNull(x);
1150                  threadAssertSame(ex1, t);
1151                  a.getAndIncrement();
# Line 879 | Line 1153 | public class CompletableFutureTest exten
1153              });
1154          if (createIncomplete) f.completeExceptionally(ex1);
1155  
1156 <        checkCompletedWithWrappedCFException(g, ex2);
1157 <        checkCompletedWithWrappedCFException(f, ex1);
1156 >        checkCompletedWithWrappedException(g, ex2);
1157 >        checkCompletedExceptionally(f, ex1);
1158          assertEquals(1, a.get());
1159      }}
1160  
# Line 896 | Line 1170 | public class CompletableFutureTest exten
1170          final CompletableFuture<Integer> g = m.handle
1171              (f,
1172               (Integer x, Throwable t) -> {
1173 +                m.checkExecutionMode();
1174                  threadAssertSame(x, v1);
1175                  threadAssertNull(t);
1176                  a.getAndIncrement();
# Line 903 | Line 1178 | public class CompletableFutureTest exten
1178              });
1179          if (createIncomplete) f.complete(v1);
1180  
1181 <        checkCompletedWithWrappedCFException(g, ex);
1181 >        checkCompletedWithWrappedException(g, ex);
1182          checkCompletedNormally(f, v1);
1183          assertEquals(1, a.get());
1184      }}
# Line 911 | Line 1186 | public class CompletableFutureTest exten
1186      /**
1187       * runAsync completes after running Runnable
1188       */
1189 <    public void testRunAsync() {
1190 <        Noop r = new Noop(ExecutionMode.ASYNC);
1191 <        CompletableFuture<Void> f = CompletableFuture.runAsync(r);
1192 <        assertNull(f.join());
1193 <        assertEquals(1, r.invocationCount);
1194 <        checkCompletedNormally(f, null);
1195 <    }
1196 <
1197 <    /**
923 <     * runAsync with executor completes after running Runnable
924 <     */
925 <    public void testRunAsync2() {
926 <        Noop r = new Noop(ExecutionMode.EXECUTOR);
927 <        ThreadExecutor exec = new ThreadExecutor();
928 <        CompletableFuture<Void> f = CompletableFuture.runAsync(r, exec);
1189 >    public void testRunAsync_normalCompletion() {
1190 >        ExecutionMode[] executionModes = {
1191 >            ExecutionMode.ASYNC,
1192 >            ExecutionMode.EXECUTOR,
1193 >        };
1194 >        for (ExecutionMode m : executionModes)
1195 >    {
1196 >        final Noop r = new Noop(m);
1197 >        final CompletableFuture<Void> f = m.runAsync(r);
1198          assertNull(f.join());
930        assertEquals(1, r.invocationCount);
1199          checkCompletedNormally(f, null);
1200 <        assertEquals(1, exec.count.get());
1201 <    }
1200 >        r.assertInvoked();
1201 >    }}
1202  
1203      /**
1204       * failing runAsync completes exceptionally after running Runnable
1205       */
1206 <    public void testRunAsync3() {
1207 <        FailingRunnable r = new FailingRunnable();
1208 <        CompletableFuture<Void> f = CompletableFuture.runAsync(r);
1206 >    public void testRunAsync_exceptionalCompletion() {
1207 >        ExecutionMode[] executionModes = {
1208 >            ExecutionMode.ASYNC,
1209 >            ExecutionMode.EXECUTOR,
1210 >        };
1211 >        for (ExecutionMode m : executionModes)
1212 >    {
1213 >        final FailingRunnable r = new FailingRunnable(m);
1214 >        final CompletableFuture<Void> f = m.runAsync(r);
1215          checkCompletedWithWrappedCFException(f);
1216 <        assertEquals(1, r.invocationCount);
1217 <    }
1216 >        r.assertInvoked();
1217 >    }}
1218  
1219      /**
1220       * supplyAsync completes with result of supplier
1221       */
1222 <    public void testSupplyAsync() {
1223 <        CompletableFuture<Integer> f;
1224 <        f = CompletableFuture.supplyAsync(supplyOne);
1225 <        assertEquals(f.join(), one);
1226 <        checkCompletedNormally(f, one);
1227 <    }
1228 <
1229 <    /**
1230 <     * supplyAsync with executor completes with result of supplier
1231 <     */
1232 <    public void testSupplyAsync2() {
1233 <        CompletableFuture<Integer> f;
1234 <        f = CompletableFuture.supplyAsync(supplyOne, new ThreadExecutor());
1235 <        assertEquals(f.join(), one);
962 <        checkCompletedNormally(f, one);
963 <    }
1222 >    public void testSupplyAsync_normalCompletion() {
1223 >        ExecutionMode[] executionModes = {
1224 >            ExecutionMode.ASYNC,
1225 >            ExecutionMode.EXECUTOR,
1226 >        };
1227 >        for (ExecutionMode m : executionModes)
1228 >        for (Integer v1 : new Integer[] { 1, null })
1229 >    {
1230 >        final IntegerSupplier r = new IntegerSupplier(m, v1);
1231 >        final CompletableFuture<Integer> f = m.supplyAsync(r);
1232 >        assertSame(v1, f.join());
1233 >        checkCompletedNormally(f, v1);
1234 >        r.assertInvoked();
1235 >    }}
1236  
1237      /**
1238       * Failing supplyAsync completes exceptionally
1239       */
1240 <    public void testSupplyAsync3() {
1241 <        FailingSupplier r = new FailingSupplier();
1242 <        CompletableFuture<Integer> f = CompletableFuture.supplyAsync(r);
1240 >    public void testSupplyAsync_exceptionalCompletion() {
1241 >        ExecutionMode[] executionModes = {
1242 >            ExecutionMode.ASYNC,
1243 >            ExecutionMode.EXECUTOR,
1244 >        };
1245 >        for (ExecutionMode m : executionModes)
1246 >    {
1247 >        FailingSupplier r = new FailingSupplier(m);
1248 >        CompletableFuture<Integer> f = m.supplyAsync(r);
1249          checkCompletedWithWrappedCFException(f);
1250 <        assertEquals(1, r.invocationCount);
1251 <    }
1250 >        r.assertInvoked();
1251 >    }}
1252  
1253      // seq completion methods
1254  
# Line 993 | Line 1271 | public class CompletableFutureTest exten
1271  
1272          checkCompletedNormally(g, null);
1273          checkCompletedNormally(f, v1);
1274 <        assertEquals(1, r.invocationCount);
1274 >        r.assertInvoked();
1275      }}
1276  
1277      /**
# Line 1014 | Line 1292 | public class CompletableFutureTest exten
1292              f.completeExceptionally(ex);
1293          }
1294  
1295 <        checkCompletedWithWrappedCFException(g, ex);
1296 <        checkCompletedWithWrappedCFException(f, ex);
1297 <        assertEquals(0, r.invocationCount);
1295 >        checkCompletedWithWrappedException(g, ex);
1296 >        checkCompletedExceptionally(f, ex);
1297 >        r.assertNotInvoked();
1298      }}
1299  
1300      /**
# Line 1030 | Line 1308 | public class CompletableFutureTest exten
1308          final CompletableFuture<Integer> f = new CompletableFuture<>();
1309          final Noop r = new Noop(m);
1310          if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1311 <        final CompletableFuture<Void> g = f.thenRun(r);
1311 >        final CompletableFuture<Void> g = m.thenRun(f, r);
1312          if (createIncomplete) {
1313              checkIncomplete(g);
1314              assertTrue(f.cancel(mayInterruptIfRunning));
# Line 1038 | Line 1316 | public class CompletableFutureTest exten
1316  
1317          checkCompletedWithWrappedCancellationException(g);
1318          checkCancelled(f);
1319 <        assertEquals(0, r.invocationCount);
1319 >        r.assertNotInvoked();
1320      }}
1321  
1322      /**
# Line 1050 | Line 1328 | public class CompletableFutureTest exten
1328          for (Integer v1 : new Integer[] { 1, null })
1329      {
1330          final CompletableFuture<Integer> f = new CompletableFuture<>();
1331 <        final FailingRunnable r = new FailingRunnable();
1331 >        final FailingRunnable r = new FailingRunnable(m);
1332          if (!createIncomplete) f.complete(v1);
1333 <        final CompletableFuture<Void> g = f.thenRun(r);
1333 >        final CompletableFuture<Void> g = m.thenRun(f, r);
1334          if (createIncomplete) {
1335              checkIncomplete(g);
1336              f.complete(v1);
# Line 1071 | Line 1349 | public class CompletableFutureTest exten
1349          for (Integer v1 : new Integer[] { 1, null })
1350      {
1351          final CompletableFuture<Integer> f = new CompletableFuture<>();
1352 <        final IncFunction r = new IncFunction();
1352 >        final IncFunction r = new IncFunction(m);
1353          if (!createIncomplete) f.complete(v1);
1354          final CompletableFuture<Integer> g = m.thenApply(f, r);
1355          if (createIncomplete) {
# Line 1081 | Line 1359 | public class CompletableFutureTest exten
1359  
1360          checkCompletedNormally(g, inc(v1));
1361          checkCompletedNormally(f, v1);
1362 <        assertEquals(1, r.invocationCount);
1362 >        r.assertValue(inc(v1));
1363      }}
1364  
1365      /**
# Line 1094 | Line 1372 | public class CompletableFutureTest exten
1372      {
1373          final CFException ex = new CFException();
1374          final CompletableFuture<Integer> f = new CompletableFuture<>();
1375 <        final IncFunction r = new IncFunction();
1375 >        final IncFunction r = new IncFunction(m);
1376          if (!createIncomplete) f.completeExceptionally(ex);
1377          final CompletableFuture<Integer> g = m.thenApply(f, r);
1378          if (createIncomplete) {
# Line 1102 | Line 1380 | public class CompletableFutureTest exten
1380              f.completeExceptionally(ex);
1381          }
1382  
1383 <        checkCompletedWithWrappedCFException(g, ex);
1384 <        checkCompletedWithWrappedCFException(f, ex);
1385 <        assertEquals(0, r.invocationCount);
1383 >        checkCompletedWithWrappedException(g, ex);
1384 >        checkCompletedExceptionally(f, ex);
1385 >        r.assertNotInvoked();
1386      }}
1387  
1388      /**
# Line 1116 | Line 1394 | public class CompletableFutureTest exten
1394          for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1395      {
1396          final CompletableFuture<Integer> f = new CompletableFuture<>();
1397 <        final IncFunction r = new IncFunction();
1397 >        final IncFunction r = new IncFunction(m);
1398          if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1399 <        final CompletableFuture<Integer> g = f.thenApply(r);
1399 >        final CompletableFuture<Integer> g = m.thenApply(f, r);
1400          if (createIncomplete) {
1401              checkIncomplete(g);
1402              assertTrue(f.cancel(mayInterruptIfRunning));
# Line 1126 | Line 1404 | public class CompletableFutureTest exten
1404  
1405          checkCompletedWithWrappedCancellationException(g);
1406          checkCancelled(f);
1407 <        assertEquals(0, r.invocationCount);
1407 >        r.assertNotInvoked();
1408      }}
1409  
1410      /**
# Line 1138 | Line 1416 | public class CompletableFutureTest exten
1416          for (Integer v1 : new Integer[] { 1, null })
1417      {
1418          final CompletableFuture<Integer> f = new CompletableFuture<>();
1419 <        final FailingFunction r = new FailingFunction();
1419 >        final FailingFunction r = new FailingFunction(m);
1420          if (!createIncomplete) f.complete(v1);
1421 <        final CompletableFuture<Integer> g = f.thenApply(r);
1421 >        final CompletableFuture<Integer> g = m.thenApply(f, r);
1422          if (createIncomplete) {
1423              checkIncomplete(g);
1424              f.complete(v1);
# Line 1159 | Line 1437 | public class CompletableFutureTest exten
1437          for (Integer v1 : new Integer[] { 1, null })
1438      {
1439          final CompletableFuture<Integer> f = new CompletableFuture<>();
1440 <        final IncAction r = new IncAction();
1440 >        final NoopConsumer r = new NoopConsumer(m);
1441          if (!createIncomplete) f.complete(v1);
1442          final CompletableFuture<Void> g = m.thenAccept(f, r);
1443          if (createIncomplete) {
# Line 1168 | Line 1446 | public class CompletableFutureTest exten
1446          }
1447  
1448          checkCompletedNormally(g, null);
1449 +        r.assertValue(v1);
1450          checkCompletedNormally(f, v1);
1172        assertEquals(1, r.invocationCount);
1173        assertEquals(inc(v1), r.value);
1451      }}
1452  
1453      /**
# Line 1183 | Line 1460 | public class CompletableFutureTest exten
1460      {
1461          final CFException ex = new CFException();
1462          final CompletableFuture<Integer> f = new CompletableFuture<>();
1463 <        final IncAction r = new IncAction();
1463 >        final NoopConsumer r = new NoopConsumer(m);
1464          if (!createIncomplete) f.completeExceptionally(ex);
1465          final CompletableFuture<Void> g = m.thenAccept(f, r);
1466          if (createIncomplete) {
# Line 1191 | Line 1468 | public class CompletableFutureTest exten
1468              f.completeExceptionally(ex);
1469          }
1470  
1471 <        checkCompletedWithWrappedCFException(g, ex);
1472 <        checkCompletedWithWrappedCFException(f, ex);
1473 <        assertEquals(0, r.invocationCount);
1471 >        checkCompletedWithWrappedException(g, ex);
1472 >        checkCompletedExceptionally(f, ex);
1473 >        r.assertNotInvoked();
1474      }}
1475  
1476      /**
1477 <     * thenAccept result completes exceptionally if action does
1477 >     * thenAccept result completes exceptionally if source cancelled
1478       */
1479 <    public void testThenAccept_actionFailed() {
1479 >    public void testThenAccept_sourceCancelled() {
1480          for (ExecutionMode m : ExecutionMode.values())
1481          for (boolean createIncomplete : new boolean[] { true, false })
1482 <        for (Integer v1 : new Integer[] { 1, null })
1482 >        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1483      {
1484          final CompletableFuture<Integer> f = new CompletableFuture<>();
1485 <        final FailingConsumer r = new FailingConsumer();
1486 <        if (!createIncomplete) f.complete(v1);
1487 <        final CompletableFuture<Void> g = f.thenAccept(r);
1485 >        final NoopConsumer r = new NoopConsumer(m);
1486 >        if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1487 >        final CompletableFuture<Void> g = m.thenAccept(f, r);
1488          if (createIncomplete) {
1489              checkIncomplete(g);
1490 <            f.complete(v1);
1490 >            assertTrue(f.cancel(mayInterruptIfRunning));
1491          }
1492  
1493 <        checkCompletedWithWrappedCFException(g);
1494 <        checkCompletedNormally(f, v1);
1493 >        checkCompletedWithWrappedCancellationException(g);
1494 >        checkCancelled(f);
1495 >        r.assertNotInvoked();
1496      }}
1497  
1498      /**
1499 <     * thenAccept result completes exceptionally if source cancelled
1499 >     * thenAccept result completes exceptionally if action does
1500       */
1501 <    public void testThenAccept_sourceCancelled() {
1501 >    public void testThenAccept_actionFailed() {
1502          for (ExecutionMode m : ExecutionMode.values())
1503          for (boolean createIncomplete : new boolean[] { true, false })
1504 <        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1504 >        for (Integer v1 : new Integer[] { 1, null })
1505      {
1506          final CompletableFuture<Integer> f = new CompletableFuture<>();
1507 <        final IncAction r = new IncAction();
1508 <        if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1509 <        final CompletableFuture<Void> g = f.thenAccept(r);
1507 >        final FailingConsumer r = new FailingConsumer(m);
1508 >        if (!createIncomplete) f.complete(v1);
1509 >        final CompletableFuture<Void> g = m.thenAccept(f, r);
1510          if (createIncomplete) {
1511              checkIncomplete(g);
1512 <            assertTrue(f.cancel(mayInterruptIfRunning));
1512 >            f.complete(v1);
1513          }
1514  
1515 <        checkCompletedWithWrappedCancellationException(g);
1516 <        checkCancelled(f);
1239 <        assertEquals(0, r.invocationCount);
1515 >        checkCompletedWithWrappedCFException(g);
1516 >        checkCompletedNormally(f, v1);
1517      }}
1518  
1519      /**
# Line 1252 | Line 1529 | public class CompletableFutureTest exten
1529      {
1530          final CompletableFuture<Integer> f = new CompletableFuture<>();
1531          final CompletableFuture<Integer> g = new CompletableFuture<>();
1532 <        final SubtractFunction r = new SubtractFunction();
1532 >        final SubtractFunction r = new SubtractFunction(m);
1533  
1534          if (fFirst) f.complete(v1); else g.complete(v2);
1535          if (!createIncomplete)
# Line 1260 | Line 1537 | public class CompletableFutureTest exten
1537          final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1538          if (createIncomplete) {
1539              checkIncomplete(h);
1540 <            assertEquals(0, r.invocationCount);
1540 >            r.assertNotInvoked();
1541              if (!fFirst) f.complete(v1); else g.complete(v2);
1542          }
1543  
1544          checkCompletedNormally(h, subtract(v1, v2));
1545          checkCompletedNormally(f, v1);
1546          checkCompletedNormally(g, v2);
1547 <        assertEquals(1, r.invocationCount);
1547 >        r.assertValue(subtract(v1, v2));
1548      }}
1549  
1550      /**
# Line 1283 | Line 1560 | public class CompletableFutureTest exten
1560          final CompletableFuture<Integer> f = new CompletableFuture<>();
1561          final CompletableFuture<Integer> g = new CompletableFuture<>();
1562          final CFException ex = new CFException();
1563 <        final SubtractFunction r = new SubtractFunction();
1563 >        final SubtractFunction r = new SubtractFunction(m);
1564  
1565          (fFirst ? f : g).complete(v1);
1566          if (!createIncomplete)
# Line 1294 | Line 1571 | public class CompletableFutureTest exten
1571              (!fFirst ? f : g).completeExceptionally(ex);
1572          }
1573  
1574 <        checkCompletedWithWrappedCFException(h, ex);
1575 <        assertEquals(0, r.invocationCount);
1574 >        checkCompletedWithWrappedException(h, ex);
1575 >        r.assertNotInvoked();
1576          checkCompletedNormally(fFirst ? f : g, v1);
1577 <        checkCompletedWithWrappedCFException(!fFirst ? f : g, ex);
1301 <    }}
1302 <
1303 <    /**
1304 <     * thenCombine result completes exceptionally if action does
1305 <     */
1306 <    public void testThenCombine_actionFailed() {
1307 <        for (ExecutionMode m : ExecutionMode.values())
1308 <        for (boolean fFirst : new boolean[] { true, false })
1309 <        for (Integer v1 : new Integer[] { 1, null })
1310 <        for (Integer v2 : new Integer[] { 2, null })
1311 <    {
1312 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
1313 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
1314 <        final FailingBiFunction r = new FailingBiFunction();
1315 <        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1316 <
1317 <        if (fFirst) {
1318 <            f.complete(v1);
1319 <            g.complete(v2);
1320 <        } else {
1321 <            g.complete(v2);
1322 <            f.complete(v1);
1323 <        }
1324 <
1325 <        checkCompletedWithWrappedCFException(h);
1326 <        checkCompletedNormally(f, v1);
1327 <        checkCompletedNormally(g, v2);
1577 >        checkCompletedExceptionally(!fFirst ? f : g, ex);
1578      }}
1579  
1580      /**
# Line 1339 | Line 1589 | public class CompletableFutureTest exten
1589      {
1590          final CompletableFuture<Integer> f = new CompletableFuture<>();
1591          final CompletableFuture<Integer> g = new CompletableFuture<>();
1592 <        final SubtractFunction r = new SubtractFunction();
1592 >        final SubtractFunction r = new SubtractFunction(m);
1593  
1594          (fFirst ? f : g).complete(v1);
1595          if (!createIncomplete)
# Line 1352 | Line 1602 | public class CompletableFutureTest exten
1602  
1603          checkCompletedWithWrappedCancellationException(h);
1604          checkCancelled(!fFirst ? f : g);
1605 <        assertEquals(0, r.invocationCount);
1605 >        r.assertNotInvoked();
1606          checkCompletedNormally(fFirst ? f : g, v1);
1607      }}
1608  
1609      /**
1610 +     * thenCombine result completes exceptionally if action does
1611 +     */
1612 +    public void testThenCombine_actionFailed() {
1613 +        for (ExecutionMode m : ExecutionMode.values())
1614 +        for (boolean fFirst : new boolean[] { true, false })
1615 +        for (Integer v1 : new Integer[] { 1, null })
1616 +        for (Integer v2 : new Integer[] { 2, null })
1617 +    {
1618 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1619 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1620 +        final FailingBiFunction r = new FailingBiFunction(m);
1621 +        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1622 +
1623 +        if (fFirst) {
1624 +            f.complete(v1);
1625 +            g.complete(v2);
1626 +        } else {
1627 +            g.complete(v2);
1628 +            f.complete(v1);
1629 +        }
1630 +
1631 +        checkCompletedWithWrappedCFException(h);
1632 +        checkCompletedNormally(f, v1);
1633 +        checkCompletedNormally(g, v2);
1634 +    }}
1635 +
1636 +    /**
1637       * thenAcceptBoth result completes normally after normal
1638       * completion of sources
1639       */
# Line 1369 | Line 1646 | public class CompletableFutureTest exten
1646      {
1647          final CompletableFuture<Integer> f = new CompletableFuture<>();
1648          final CompletableFuture<Integer> g = new CompletableFuture<>();
1649 <        final SubtractAction r = new SubtractAction();
1649 >        final SubtractAction r = new SubtractAction(m);
1650  
1651          if (fFirst) f.complete(v1); else g.complete(v2);
1652          if (!createIncomplete)
# Line 1377 | Line 1654 | public class CompletableFutureTest exten
1654          final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1655          if (createIncomplete) {
1656              checkIncomplete(h);
1657 <            assertEquals(0, r.invocationCount);
1657 >            r.assertNotInvoked();
1658              if (!fFirst) f.complete(v1); else g.complete(v2);
1659          }
1660  
1661          checkCompletedNormally(h, null);
1662 <        assertEquals(subtract(v1, v2), r.value);
1662 >        r.assertValue(subtract(v1, v2));
1663          checkCompletedNormally(f, v1);
1664          checkCompletedNormally(g, v2);
1665      }}
# Line 1400 | Line 1677 | public class CompletableFutureTest exten
1677          final CompletableFuture<Integer> f = new CompletableFuture<>();
1678          final CompletableFuture<Integer> g = new CompletableFuture<>();
1679          final CFException ex = new CFException();
1680 <        final SubtractAction r = new SubtractAction();
1680 >        final SubtractAction r = new SubtractAction(m);
1681  
1682          (fFirst ? f : g).complete(v1);
1683          if (!createIncomplete)
# Line 1411 | Line 1688 | public class CompletableFutureTest exten
1688              (!fFirst ? f : g).completeExceptionally(ex);
1689          }
1690  
1691 <        checkCompletedWithWrappedCFException(h, ex);
1692 <        assertEquals(0, r.invocationCount);
1691 >        checkCompletedWithWrappedException(h, ex);
1692 >        r.assertNotInvoked();
1693          checkCompletedNormally(fFirst ? f : g, v1);
1694 <        checkCompletedWithWrappedCFException(!fFirst ? f : g, ex);
1418 <    }}
1419 <
1420 <    /**
1421 <     * thenAcceptBoth result completes exceptionally if action does
1422 <     */
1423 <    public void testThenAcceptBoth_actionFailed() {
1424 <        for (ExecutionMode m : ExecutionMode.values())
1425 <        for (boolean fFirst : new boolean[] { true, false })
1426 <        for (Integer v1 : new Integer[] { 1, null })
1427 <        for (Integer v2 : new Integer[] { 2, null })
1428 <    {
1429 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
1430 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
1431 <        final FailingBiConsumer r = new FailingBiConsumer();
1432 <        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1433 <
1434 <        if (fFirst) {
1435 <            f.complete(v1);
1436 <            g.complete(v2);
1437 <        } else {
1438 <            g.complete(v2);
1439 <            f.complete(v1);
1440 <        }
1441 <
1442 <        checkCompletedWithWrappedCFException(h);
1443 <        checkCompletedNormally(f, v1);
1444 <        checkCompletedNormally(g, v2);
1694 >        checkCompletedExceptionally(!fFirst ? f : g, ex);
1695      }}
1696  
1697      /**
# Line 1456 | Line 1706 | public class CompletableFutureTest exten
1706      {
1707          final CompletableFuture<Integer> f = new CompletableFuture<>();
1708          final CompletableFuture<Integer> g = new CompletableFuture<>();
1709 <        final SubtractAction r = new SubtractAction();
1709 >        final SubtractAction r = new SubtractAction(m);
1710  
1711          (fFirst ? f : g).complete(v1);
1712          if (!createIncomplete)
# Line 1469 | Line 1719 | public class CompletableFutureTest exten
1719  
1720          checkCompletedWithWrappedCancellationException(h);
1721          checkCancelled(!fFirst ? f : g);
1722 <        assertEquals(0, r.invocationCount);
1722 >        r.assertNotInvoked();
1723          checkCompletedNormally(fFirst ? f : g, v1);
1724      }}
1725  
1726      /**
1727 +     * thenAcceptBoth result completes exceptionally if action does
1728 +     */
1729 +    public void testThenAcceptBoth_actionFailed() {
1730 +        for (ExecutionMode m : ExecutionMode.values())
1731 +        for (boolean fFirst : new boolean[] { true, false })
1732 +        for (Integer v1 : new Integer[] { 1, null })
1733 +        for (Integer v2 : new Integer[] { 2, null })
1734 +    {
1735 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1736 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1737 +        final FailingBiConsumer r = new FailingBiConsumer(m);
1738 +        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1739 +
1740 +        if (fFirst) {
1741 +            f.complete(v1);
1742 +            g.complete(v2);
1743 +        } else {
1744 +            g.complete(v2);
1745 +            f.complete(v1);
1746 +        }
1747 +
1748 +        checkCompletedWithWrappedCFException(h);
1749 +        checkCompletedNormally(f, v1);
1750 +        checkCompletedNormally(g, v2);
1751 +    }}
1752 +
1753 +    /**
1754       * runAfterBoth result completes normally after normal
1755       * completion of sources
1756       */
# Line 1494 | Line 1771 | public class CompletableFutureTest exten
1771          final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1772          if (createIncomplete) {
1773              checkIncomplete(h);
1774 <            assertEquals(0, r.invocationCount);
1774 >            r.assertNotInvoked();
1775              if (!fFirst) f.complete(v1); else g.complete(v2);
1776          }
1777  
1778          checkCompletedNormally(h, null);
1779 <        assertEquals(1, r.invocationCount);
1779 >        r.assertInvoked();
1780          checkCompletedNormally(f, v1);
1781          checkCompletedNormally(g, v2);
1782      }}
# Line 1528 | Line 1805 | public class CompletableFutureTest exten
1805              (!fFirst ? f : g).completeExceptionally(ex);
1806          }
1807  
1808 <        checkCompletedWithWrappedCFException(h, ex);
1809 <        assertEquals(0, r.invocationCount);
1808 >        checkCompletedWithWrappedException(h, ex);
1809 >        r.assertNotInvoked();
1810          checkCompletedNormally(fFirst ? f : g, v1);
1811 <        checkCompletedWithWrappedCFException(!fFirst ? f : g, ex);
1535 <    }}
1536 <
1537 <    /**
1538 <     * runAfterBoth result completes exceptionally if action does
1539 <     */
1540 <    public void testRunAfterBoth_actionFailed() {
1541 <        for (ExecutionMode m : ExecutionMode.values())
1542 <        for (boolean fFirst : new boolean[] { true, false })
1543 <        for (Integer v1 : new Integer[] { 1, null })
1544 <        for (Integer v2 : new Integer[] { 2, null })
1545 <    {
1546 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
1547 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
1548 <        final FailingRunnable r = new FailingRunnable();
1549 <
1550 <        CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r);
1551 <        if (fFirst) {
1552 <            f.complete(v1);
1553 <            g.complete(v2);
1554 <        } else {
1555 <            g.complete(v2);
1556 <            f.complete(v1);
1557 <        }
1558 <        CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r);
1559 <
1560 <        checkCompletedWithWrappedCFException(h1);
1561 <        checkCompletedWithWrappedCFException(h2);
1562 <        checkCompletedNormally(f, v1);
1563 <        checkCompletedNormally(g, v2);
1811 >        checkCompletedExceptionally(!fFirst ? f : g, ex);
1812      }}
1813  
1814      /**
# Line 1577 | Line 1825 | public class CompletableFutureTest exten
1825          final CompletableFuture<Integer> g = new CompletableFuture<>();
1826          final Noop r = new Noop(m);
1827  
1580
1828          (fFirst ? f : g).complete(v1);
1829          if (!createIncomplete)
1830              assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
# Line 1589 | Line 1836 | public class CompletableFutureTest exten
1836  
1837          checkCompletedWithWrappedCancellationException(h);
1838          checkCancelled(!fFirst ? f : g);
1839 <        assertEquals(0, r.invocationCount);
1839 >        r.assertNotInvoked();
1840          checkCompletedNormally(fFirst ? f : g, v1);
1841      }}
1842  
1843      /**
1844 <     * applyToEither result completes normally after normal completion
1598 <     * of either source
1844 >     * runAfterBoth result completes exceptionally if action does
1845       */
1846 <    public void testApplyToEither_normalCompletion() {
1846 >    public void testRunAfterBoth_actionFailed() {
1847          for (ExecutionMode m : ExecutionMode.values())
1602        for (boolean createIncomplete : new boolean[] { true, false })
1848          for (boolean fFirst : new boolean[] { true, false })
1849          for (Integer v1 : new Integer[] { 1, null })
1850          for (Integer v2 : new Integer[] { 2, null })
1851      {
1852          final CompletableFuture<Integer> f = new CompletableFuture<>();
1853          final CompletableFuture<Integer> g = new CompletableFuture<>();
1854 <        final IncFunction r = new IncFunction();
1854 >        final FailingRunnable r1 = new FailingRunnable(m);
1855 >        final FailingRunnable r2 = new FailingRunnable(m);
1856  
1857 <        if (!createIncomplete)
1858 <            if (fFirst) f.complete(v1); else g.complete(v2);
1859 <        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
1860 <        if (createIncomplete) {
1861 <            checkIncomplete(h);
1862 <            assertEquals(0, r.invocationCount);
1863 <            if (fFirst) f.complete(v1); else g.complete(v2);
1857 >        CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
1858 >        if (fFirst) {
1859 >            f.complete(v1);
1860 >            g.complete(v2);
1861 >        } else {
1862 >            g.complete(v2);
1863 >            f.complete(v1);
1864          }
1865 <        checkCompletedNormally(h, inc(fFirst ? v1 : v2));
1620 <        if (!fFirst) f.complete(v1); else g.complete(v2);
1865 >        CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
1866  
1867 +        checkCompletedWithWrappedCFException(h1);
1868 +        checkCompletedWithWrappedCFException(h2);
1869          checkCompletedNormally(f, v1);
1870          checkCompletedNormally(g, v2);
1624        checkCompletedNormally(h, inc(fFirst ? v1 : v2));
1871      }}
1872  
1873 <    public void testApplyToEither_normalCompletionBothAvailable() {
1873 >    /**
1874 >     * applyToEither result completes normally after normal completion
1875 >     * of either source
1876 >     */
1877 >    public void testApplyToEither_normalCompletion() {
1878          for (ExecutionMode m : ExecutionMode.values())
1629        for (boolean fFirst : new boolean[] { true, false })
1879          for (Integer v1 : new Integer[] { 1, null })
1880          for (Integer v2 : new Integer[] { 2, null })
1881      {
1882          final CompletableFuture<Integer> f = new CompletableFuture<>();
1883          final CompletableFuture<Integer> g = new CompletableFuture<>();
1884 <        final IncFunction r = new IncFunction();
1884 >        final IncFunction[] rs = new IncFunction[6];
1885 >        for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1886  
1887 <        if (fFirst) {
1888 <            f.complete(v1);
1889 <            g.complete(v2);
1890 <        } else {
1891 <            g.complete(v2);
1892 <            f.complete(v1);
1893 <        }
1887 >        final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
1888 >        final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
1889 >        checkIncomplete(h0);
1890 >        checkIncomplete(h1);
1891 >        rs[0].assertNotInvoked();
1892 >        rs[1].assertNotInvoked();
1893 >        f.complete(v1);
1894 >        checkCompletedNormally(h0, inc(v1));
1895 >        checkCompletedNormally(h1, inc(v1));
1896 >        final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
1897 >        final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
1898 >        checkCompletedNormally(h2, inc(v1));
1899 >        checkCompletedNormally(h3, inc(v1));
1900 >        g.complete(v2);
1901  
1902 <        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
1902 >        // unspecified behavior - both source completions available
1903 >        final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
1904 >        final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
1905 >        rs[4].assertValue(h4.join());
1906 >        rs[5].assertValue(h5.join());
1907 >        assertTrue(Objects.equals(inc(v1), h4.join()) ||
1908 >                   Objects.equals(inc(v2), h4.join()));
1909 >        assertTrue(Objects.equals(inc(v1), h5.join()) ||
1910 >                   Objects.equals(inc(v2), h5.join()));
1911  
1912          checkCompletedNormally(f, v1);
1913          checkCompletedNormally(g, v2);
1914 <
1915 <        // unspecified behavior
1916 <        assertTrue(Objects.equals(h.join(), inc(v1)) ||
1917 <                   Objects.equals(h.join(), inc(v2)));
1918 <        assertEquals(1, r.invocationCount);
1914 >        checkCompletedNormally(h0, inc(v1));
1915 >        checkCompletedNormally(h1, inc(v1));
1916 >        checkCompletedNormally(h2, inc(v1));
1917 >        checkCompletedNormally(h3, inc(v1));
1918 >        for (int i = 0; i < 4; i++) rs[i].assertValue(inc(v1));
1919      }}
1920  
1921      /**
1922       * applyToEither result completes exceptionally after exceptional
1923       * completion of either source
1924       */
1925 <    public void testApplyToEither_exceptionalCompletion1() {
1925 >    public void testApplyToEither_exceptionalCompletion() {
1926          for (ExecutionMode m : ExecutionMode.values())
1662        for (boolean createIncomplete : new boolean[] { true, false })
1663        for (boolean fFirst : new boolean[] { true, false })
1927          for (Integer v1 : new Integer[] { 1, null })
1928      {
1929          final CompletableFuture<Integer> f = new CompletableFuture<>();
1930          final CompletableFuture<Integer> g = new CompletableFuture<>();
1931          final CFException ex = new CFException();
1932 <        final IncFunction r = new IncFunction();
1932 >        final IncFunction[] rs = new IncFunction[6];
1933 >        for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1934  
1935 <        if (!createIncomplete) (fFirst ? f : g).completeExceptionally(ex);
1936 <        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
1937 <        if (createIncomplete) {
1938 <            checkIncomplete(h);
1939 <            assertEquals(0, r.invocationCount);
1940 <            (fFirst ? f : g).completeExceptionally(ex);
1941 <        }
1935 >        final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
1936 >        final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
1937 >        checkIncomplete(h0);
1938 >        checkIncomplete(h1);
1939 >        rs[0].assertNotInvoked();
1940 >        rs[1].assertNotInvoked();
1941 >        f.completeExceptionally(ex);
1942 >        checkCompletedWithWrappedException(h0, ex);
1943 >        checkCompletedWithWrappedException(h1, ex);
1944 >        final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
1945 >        final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
1946 >        checkCompletedWithWrappedException(h2, ex);
1947 >        checkCompletedWithWrappedException(h3, ex);
1948 >        g.complete(v1);
1949  
1950 <        checkCompletedWithWrappedCFException(h, ex);
1951 <        (!fFirst ? f : g).complete(v1);
1950 >        // unspecified behavior - both source completions available
1951 >        final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
1952 >        final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
1953 >        try {
1954 >            assertEquals(inc(v1), h4.join());
1955 >            rs[4].assertValue(inc(v1));
1956 >        } catch (CompletionException ok) {
1957 >            checkCompletedWithWrappedException(h4, ex);
1958 >            rs[4].assertNotInvoked();
1959 >        }
1960 >        try {
1961 >            assertEquals(inc(v1), h5.join());
1962 >            rs[5].assertValue(inc(v1));
1963 >        } catch (CompletionException ok) {
1964 >            checkCompletedWithWrappedException(h5, ex);
1965 >            rs[5].assertNotInvoked();
1966 >        }
1967  
1968 <        assertEquals(0, r.invocationCount);
1969 <        checkCompletedNormally(!fFirst ? f : g, v1);
1970 <        checkCompletedWithWrappedCFException(fFirst ? f : g, ex);
1971 <        checkCompletedWithWrappedCFException(h, ex);
1968 >        checkCompletedExceptionally(f, ex);
1969 >        checkCompletedNormally(g, v1);
1970 >        checkCompletedWithWrappedException(h0, ex);
1971 >        checkCompletedWithWrappedException(h1, ex);
1972 >        checkCompletedWithWrappedException(h2, ex);
1973 >        checkCompletedWithWrappedException(h3, ex);
1974 >        checkCompletedWithWrappedException(h4, ex);
1975 >        for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
1976      }}
1977  
1978      public void testApplyToEither_exceptionalCompletion2() {
1979          for (ExecutionMode m : ExecutionMode.values())
1690        for (boolean reverseArgs : new boolean[] { true, false })
1980          for (boolean fFirst : new boolean[] { true, false })
1981          for (Integer v1 : new Integer[] { 1, null })
1982      {
1983          final CompletableFuture<Integer> f = new CompletableFuture<>();
1984          final CompletableFuture<Integer> g = new CompletableFuture<>();
1696        final IncFunction r1 = new IncFunction();
1697        final IncFunction r2 = new IncFunction();
1985          final CFException ex = new CFException();
1986 <        final CompletableFuture<Integer> j = (reverseArgs ? g : f);
1987 <        final CompletableFuture<Integer> k = (reverseArgs ? f : g);
1988 <        final CompletableFuture<Integer> h1 = m.applyToEither(j, k, r1);
1986 >        final IncFunction[] rs = new IncFunction[6];
1987 >        for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1988 >
1989 >        final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
1990 >        final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
1991          if (fFirst) {
1992              f.complete(v1);
1993              g.completeExceptionally(ex);
# Line 1706 | Line 1995 | public class CompletableFutureTest exten
1995              g.completeExceptionally(ex);
1996              f.complete(v1);
1997          }
1998 <        final CompletableFuture<Integer> h2 = m.applyToEither(j, k, r2);
1998 >        final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
1999 >        final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2000  
2001 <        // unspecified behavior
2001 >        // unspecified behavior - both source completions available
2002 >        try {
2003 >            assertEquals(inc(v1), h0.join());
2004 >            rs[0].assertValue(inc(v1));
2005 >        } catch (CompletionException ok) {
2006 >            checkCompletedWithWrappedException(h0, ex);
2007 >            rs[0].assertNotInvoked();
2008 >        }
2009          try {
2010              assertEquals(inc(v1), h1.join());
2011 <            assertEquals(1, r1.invocationCount);
2011 >            rs[1].assertValue(inc(v1));
2012          } catch (CompletionException ok) {
2013 <            checkCompletedWithWrappedCFException(h1, ex);
2014 <            assertEquals(0, r1.invocationCount);
2013 >            checkCompletedWithWrappedException(h1, ex);
2014 >            rs[1].assertNotInvoked();
2015          }
1719
2016          try {
2017              assertEquals(inc(v1), h2.join());
2018 <            assertEquals(1, r2.invocationCount);
2018 >            rs[2].assertValue(inc(v1));
2019          } catch (CompletionException ok) {
2020 <            checkCompletedWithWrappedCFException(h2, ex);
2021 <            assertEquals(0, r2.invocationCount);
2020 >            checkCompletedWithWrappedException(h2, ex);
2021 >            rs[2].assertNotInvoked();
2022 >        }
2023 >        try {
2024 >            assertEquals(inc(v1), h3.join());
2025 >            rs[3].assertValue(inc(v1));
2026 >        } catch (CompletionException ok) {
2027 >            checkCompletedWithWrappedException(h3, ex);
2028 >            rs[3].assertNotInvoked();
2029          }
2030  
1728        checkCompletedWithWrappedCFException(g, ex);
1729        checkCompletedNormally(f, v1);
1730    }}
1731
1732    /**
1733     * applyToEither result completes exceptionally if action does
1734     */
1735    public void testApplyToEither_actionFailed1() {
1736        for (ExecutionMode m : ExecutionMode.values())
1737        for (Integer v1 : new Integer[] { 1, null })
1738        for (Integer v2 : new Integer[] { 2, null })
1739    {
1740        final CompletableFuture<Integer> f = new CompletableFuture<>();
1741        final CompletableFuture<Integer> g = new CompletableFuture<>();
1742        final FailingFunction r = new FailingFunction();
1743        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
1744
1745        f.complete(v1);
1746        checkCompletedWithWrappedCFException(h);
1747        g.complete(v2);
1748        checkCompletedNormally(f, v1);
1749        checkCompletedNormally(g, v2);
1750    }}
1751
1752    public void testApplyToEither_actionFailed2() {
1753        for (ExecutionMode m : ExecutionMode.values())
1754        for (Integer v1 : new Integer[] { 1, null })
1755        for (Integer v2 : new Integer[] { 2, null })
1756    {
1757        final CompletableFuture<Integer> f = new CompletableFuture<>();
1758        final CompletableFuture<Integer> g = new CompletableFuture<>();
1759        final FailingFunction r = new FailingFunction();
1760        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
1761
1762        g.complete(v2);
1763        checkCompletedWithWrappedCFException(h);
1764        f.complete(v1);
2031          checkCompletedNormally(f, v1);
2032 <        checkCompletedNormally(g, v2);
2032 >        checkCompletedExceptionally(g, ex);
2033      }}
2034  
2035      /**
2036       * applyToEither result completes exceptionally if either source cancelled
2037       */
2038 <    public void testApplyToEither_sourceCancelled1() {
2038 >    public void testApplyToEither_sourceCancelled() {
2039          for (ExecutionMode m : ExecutionMode.values())
2040          for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1775        for (boolean createIncomplete : new boolean[] { true, false })
1776        for (boolean fFirst : new boolean[] { true, false })
2041          for (Integer v1 : new Integer[] { 1, null })
2042      {
2043          final CompletableFuture<Integer> f = new CompletableFuture<>();
2044          final CompletableFuture<Integer> g = new CompletableFuture<>();
2045 <        final IncFunction r = new IncFunction();
2045 >        final IncFunction[] rs = new IncFunction[6];
2046 >        for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2047  
2048 <        if (!createIncomplete) assertTrue((fFirst ? f : g).cancel(mayInterruptIfRunning));
2049 <        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2050 <        if (createIncomplete) {
2051 <            checkIncomplete(h);
2052 <            assertEquals(0, r.invocationCount);
2053 <            assertTrue((fFirst ? f : g).cancel(mayInterruptIfRunning));
2054 <        }
2048 >        final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2049 >        final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2050 >        checkIncomplete(h0);
2051 >        checkIncomplete(h1);
2052 >        rs[0].assertNotInvoked();
2053 >        rs[1].assertNotInvoked();
2054 >        f.cancel(mayInterruptIfRunning);
2055 >        checkCompletedWithWrappedCancellationException(h0);
2056 >        checkCompletedWithWrappedCancellationException(h1);
2057 >        final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2058 >        final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2059 >        checkCompletedWithWrappedCancellationException(h2);
2060 >        checkCompletedWithWrappedCancellationException(h3);
2061 >        g.complete(v1);
2062  
2063 <        checkCompletedWithWrappedCancellationException(h);
2064 <        (!fFirst ? f : g).complete(v1);
2063 >        // unspecified behavior - both source completions available
2064 >        final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2065 >        final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2066 >        try {
2067 >            assertEquals(inc(v1), h4.join());
2068 >            rs[4].assertValue(inc(v1));
2069 >        } catch (CompletionException ok) {
2070 >            checkCompletedWithWrappedCancellationException(h4);
2071 >            rs[4].assertNotInvoked();
2072 >        }
2073 >        try {
2074 >            assertEquals(inc(v1), h5.join());
2075 >            rs[5].assertValue(inc(v1));
2076 >        } catch (CompletionException ok) {
2077 >            checkCompletedWithWrappedCancellationException(h5);
2078 >            rs[5].assertNotInvoked();
2079 >        }
2080  
2081 <        assertEquals(0, r.invocationCount);
2082 <        checkCompletedNormally(!fFirst ? f : g, v1);
2083 <        checkCancelled(fFirst ? f : g);
2084 <        checkCompletedWithWrappedCancellationException(h);
2081 >        checkCancelled(f);
2082 >        checkCompletedNormally(g, v1);
2083 >        checkCompletedWithWrappedCancellationException(h0);
2084 >        checkCompletedWithWrappedCancellationException(h1);
2085 >        checkCompletedWithWrappedCancellationException(h2);
2086 >        checkCompletedWithWrappedCancellationException(h3);
2087 >        for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2088      }}
2089  
2090      public void testApplyToEither_sourceCancelled2() {
2091          for (ExecutionMode m : ExecutionMode.values())
2092          for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1803        for (boolean reverseArgs : new boolean[] { true, false })
2093          for (boolean fFirst : new boolean[] { true, false })
2094          for (Integer v1 : new Integer[] { 1, null })
2095      {
2096          final CompletableFuture<Integer> f = new CompletableFuture<>();
2097          final CompletableFuture<Integer> g = new CompletableFuture<>();
2098 <        final IncFunction r1 = new IncFunction();
2099 <        final IncFunction r2 = new IncFunction();
1811 <        final CFException ex = new CFException();
1812 <        final CompletableFuture<Integer> j = (reverseArgs ? g : f);
1813 <        final CompletableFuture<Integer> k = (reverseArgs ? f : g);
2098 >        final IncFunction[] rs = new IncFunction[6];
2099 >        for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2100  
2101 <        final CompletableFuture<Integer> h1 = m.applyToEither(j, k, r1);
2101 >        final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2102 >        final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2103          if (fFirst) {
2104              f.complete(v1);
2105 <            assertTrue(g.cancel(mayInterruptIfRunning));
2105 >            g.cancel(mayInterruptIfRunning);
2106          } else {
2107 <            assertTrue(g.cancel(mayInterruptIfRunning));
2107 >            g.cancel(mayInterruptIfRunning);
2108              f.complete(v1);
2109          }
2110 <        final CompletableFuture<Integer> h2 = m.applyToEither(j, k, r2);
2110 >        final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2111 >        final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2112  
2113 <        // unspecified behavior
2113 >        // unspecified behavior - both source completions available
2114 >        try {
2115 >            assertEquals(inc(v1), h0.join());
2116 >            rs[0].assertValue(inc(v1));
2117 >        } catch (CompletionException ok) {
2118 >            checkCompletedWithWrappedCancellationException(h0);
2119 >            rs[0].assertNotInvoked();
2120 >        }
2121          try {
2122              assertEquals(inc(v1), h1.join());
2123 <            assertEquals(1, r1.invocationCount);
2123 >            rs[1].assertValue(inc(v1));
2124          } catch (CompletionException ok) {
2125              checkCompletedWithWrappedCancellationException(h1);
2126 <            assertEquals(0, r1.invocationCount);
2126 >            rs[1].assertNotInvoked();
2127          }
1833
2128          try {
2129              assertEquals(inc(v1), h2.join());
2130 <            assertEquals(1, r2.invocationCount);
2130 >            rs[2].assertValue(inc(v1));
2131          } catch (CompletionException ok) {
2132              checkCompletedWithWrappedCancellationException(h2);
2133 <            assertEquals(0, r2.invocationCount);
2133 >            rs[2].assertNotInvoked();
2134 >        }
2135 >        try {
2136 >            assertEquals(inc(v1), h3.join());
2137 >            rs[3].assertValue(inc(v1));
2138 >        } catch (CompletionException ok) {
2139 >            checkCompletedWithWrappedCancellationException(h3);
2140 >            rs[3].assertNotInvoked();
2141          }
2142  
1842        checkCancelled(g);
2143          checkCompletedNormally(f, v1);
2144 +        checkCancelled(g);
2145      }}
2146  
2147      /**
2148 <     * acceptEither result completes normally after normal completion
1848 <     * of either source
2148 >     * applyToEither result completes exceptionally if action does
2149       */
2150 <    public void testAcceptEither_normalCompletion1() {
2150 >    public void testApplyToEither_actionFailed() {
2151          for (ExecutionMode m : ExecutionMode.values())
2152          for (Integer v1 : new Integer[] { 1, null })
2153          for (Integer v2 : new Integer[] { 2, null })
2154      {
2155          final CompletableFuture<Integer> f = new CompletableFuture<>();
2156          final CompletableFuture<Integer> g = new CompletableFuture<>();
2157 <        final IncAction r = new IncAction();
2158 <        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2157 >        final FailingFunction[] rs = new FailingFunction[6];
2158 >        for (int i = 0; i < rs.length; i++) rs[i] = new FailingFunction(m);
2159  
2160 +        final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2161 +        final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2162          f.complete(v1);
2163 <        checkCompletedNormally(h, null);
2164 <        assertEquals(inc(v1), r.value);
2165 <        g.complete(v2);
2166 <
2167 <        checkCompletedNormally(f, v1);
2168 <        checkCompletedNormally(g, v2);
2169 <        checkCompletedNormally(h, null);
1868 <    }}
1869 <
1870 <    public void testAcceptEither_normalCompletion2() {
1871 <        for (ExecutionMode m : ExecutionMode.values())
1872 <        for (Integer v1 : new Integer[] { 1, null })
1873 <        for (Integer v2 : new Integer[] { 2, null })
1874 <    {
1875 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
1876 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
1877 <        final IncAction r = new IncAction();
1878 <        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2163 >        final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2164 >        final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2165 >        checkCompletedWithWrappedCFException(h0);
2166 >        checkCompletedWithWrappedCFException(h1);
2167 >        checkCompletedWithWrappedCFException(h2);
2168 >        checkCompletedWithWrappedCFException(h3);
2169 >        for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2170  
2171          g.complete(v2);
2172 <        checkCompletedNormally(h, null);
2173 <        assertEquals(inc(v2), r.value);
2174 <        f.complete(v1);
2172 >
2173 >        // unspecified behavior - both source completions available
2174 >        final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2175 >        final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2176 >
2177 >        checkCompletedWithWrappedCFException(h4);
2178 >        assertTrue(Objects.equals(v1, rs[4].value) ||
2179 >                   Objects.equals(v2, rs[4].value));
2180 >        checkCompletedWithWrappedCFException(h5);
2181 >        assertTrue(Objects.equals(v1, rs[5].value) ||
2182 >                   Objects.equals(v2, rs[5].value));
2183  
2184          checkCompletedNormally(f, v1);
2185          checkCompletedNormally(g, v2);
1887        checkCompletedNormally(h, null);
2186      }}
2187  
2188 <    public void testAcceptEither_normalCompletion3() {
2188 >    /**
2189 >     * acceptEither result completes normally after normal completion
2190 >     * of either source
2191 >     */
2192 >    public void testAcceptEither_normalCompletion() {
2193          for (ExecutionMode m : ExecutionMode.values())
2194          for (Integer v1 : new Integer[] { 1, null })
2195          for (Integer v2 : new Integer[] { 2, null })
2196      {
2197          final CompletableFuture<Integer> f = new CompletableFuture<>();
2198          final CompletableFuture<Integer> g = new CompletableFuture<>();
2199 <        final IncAction r = new IncAction();
2199 >        final NoopConsumer[] rs = new NoopConsumer[6];
2200 >        for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2201  
2202 +        final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2203 +        final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2204 +        checkIncomplete(h0);
2205 +        checkIncomplete(h1);
2206 +        rs[0].assertNotInvoked();
2207 +        rs[1].assertNotInvoked();
2208          f.complete(v1);
2209 +        checkCompletedNormally(h0, null);
2210 +        checkCompletedNormally(h1, null);
2211 +        rs[0].assertValue(v1);
2212 +        rs[1].assertValue(v1);
2213 +        final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2214 +        final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2215 +        checkCompletedNormally(h2, null);
2216 +        checkCompletedNormally(h3, null);
2217 +        rs[2].assertValue(v1);
2218 +        rs[3].assertValue(v1);
2219          g.complete(v2);
1901        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2220  
2221 <        checkCompletedNormally(h, null);
2221 >        // unspecified behavior - both source completions available
2222 >        final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2223 >        final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2224 >        checkCompletedNormally(h4, null);
2225 >        checkCompletedNormally(h5, null);
2226 >        assertTrue(Objects.equals(v1, rs[4].value) ||
2227 >                   Objects.equals(v2, rs[4].value));
2228 >        assertTrue(Objects.equals(v1, rs[5].value) ||
2229 >                   Objects.equals(v2, rs[5].value));
2230 >
2231          checkCompletedNormally(f, v1);
2232          checkCompletedNormally(g, v2);
2233 <
2234 <        // unspecified behavior
2235 <        assertTrue(Objects.equals(r.value, inc(v1)) ||
2236 <                   Objects.equals(r.value, inc(v2)));
2233 >        checkCompletedNormally(h0, null);
2234 >        checkCompletedNormally(h1, null);
2235 >        checkCompletedNormally(h2, null);
2236 >        checkCompletedNormally(h3, null);
2237 >        for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2238      }}
2239  
2240      /**
2241       * acceptEither result completes exceptionally after exceptional
2242       * completion of either source
2243       */
2244 <    public void testAcceptEither_exceptionalCompletion1() {
2244 >    public void testAcceptEither_exceptionalCompletion() {
2245          for (ExecutionMode m : ExecutionMode.values())
2246          for (Integer v1 : new Integer[] { 1, null })
2247      {
2248          final CompletableFuture<Integer> f = new CompletableFuture<>();
2249          final CompletableFuture<Integer> g = new CompletableFuture<>();
1922        final IncAction r = new IncAction();
1923        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2250          final CFException ex = new CFException();
2251 +        final NoopConsumer[] rs = new NoopConsumer[6];
2252 +        for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2253  
2254 +        final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2255 +        final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2256 +        checkIncomplete(h0);
2257 +        checkIncomplete(h1);
2258 +        rs[0].assertNotInvoked();
2259 +        rs[1].assertNotInvoked();
2260          f.completeExceptionally(ex);
2261 <        checkCompletedWithWrappedCFException(h, ex);
2261 >        checkCompletedWithWrappedException(h0, ex);
2262 >        checkCompletedWithWrappedException(h1, ex);
2263 >        final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2264 >        final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2265 >        checkCompletedWithWrappedException(h2, ex);
2266 >        checkCompletedWithWrappedException(h3, ex);
2267 >
2268          g.complete(v1);
2269  
2270 <        assertEquals(0, r.invocationCount);
2270 >        // unspecified behavior - both source completions available
2271 >        final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2272 >        final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2273 >        try {
2274 >            assertNull(h4.join());
2275 >            rs[4].assertValue(v1);
2276 >        } catch (CompletionException ok) {
2277 >            checkCompletedWithWrappedException(h4, ex);
2278 >            rs[4].assertNotInvoked();
2279 >        }
2280 >        try {
2281 >            assertNull(h5.join());
2282 >            rs[5].assertValue(v1);
2283 >        } catch (CompletionException ok) {
2284 >            checkCompletedWithWrappedException(h5, ex);
2285 >            rs[5].assertNotInvoked();
2286 >        }
2287 >
2288 >        checkCompletedExceptionally(f, ex);
2289          checkCompletedNormally(g, v1);
2290 <        checkCompletedWithWrappedCFException(f, ex);
2291 <        checkCompletedWithWrappedCFException(h, ex);
2290 >        checkCompletedWithWrappedException(h0, ex);
2291 >        checkCompletedWithWrappedException(h1, ex);
2292 >        checkCompletedWithWrappedException(h2, ex);
2293 >        checkCompletedWithWrappedException(h3, ex);
2294 >        checkCompletedWithWrappedException(h4, ex);
2295 >        for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2296      }}
2297  
2298      public void testAcceptEither_exceptionalCompletion2() {
2299          for (ExecutionMode m : ExecutionMode.values())
2300 +        for (boolean fFirst : new boolean[] { true, false })
2301          for (Integer v1 : new Integer[] { 1, null })
2302      {
2303          final CompletableFuture<Integer> f = new CompletableFuture<>();
2304          final CompletableFuture<Integer> g = new CompletableFuture<>();
1942        final IncAction r = new IncAction();
1943        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
1944        final CFException ex = new CFException();
1945
1946        g.completeExceptionally(ex);
1947        checkCompletedWithWrappedCFException(h, ex);
1948        f.complete(v1);
1949
1950        assertEquals(0, r.invocationCount);
1951        checkCompletedNormally(f, v1);
1952        checkCompletedWithWrappedCFException(g, ex);
1953        checkCompletedWithWrappedCFException(h, ex);
1954    }}
1955
1956    public void testAcceptEither_exceptionalCompletion3() {
1957        for (ExecutionMode m : ExecutionMode.values())
1958        for (Integer v1 : new Integer[] { 1, null })
1959    {
1960        final CompletableFuture<Integer> f = new CompletableFuture<>();
1961        final CompletableFuture<Integer> g = new CompletableFuture<>();
1962        final IncAction r = new IncAction();
2305          final CFException ex = new CFException();
2306 +        final NoopConsumer[] rs = new NoopConsumer[6];
2307 +        for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2308  
2309 <        g.completeExceptionally(ex);
2310 <        f.complete(v1);
2311 <        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2309 >        final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2310 >        final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2311 >        if (fFirst) {
2312 >            f.complete(v1);
2313 >            g.completeExceptionally(ex);
2314 >        } else {
2315 >            g.completeExceptionally(ex);
2316 >            f.complete(v1);
2317 >        }
2318 >        final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2319 >        final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2320  
2321 <        // unspecified behavior
1970 <        Integer v;
2321 >        // unspecified behavior - both source completions available
2322          try {
2323 <            assertNull(h.join());
2324 <            assertEquals(1, r.invocationCount);
1974 <            assertEquals(inc(v1), r.value);
2323 >            assertEquals(null, h0.join());
2324 >            rs[0].assertValue(v1);
2325          } catch (CompletionException ok) {
2326 <            checkCompletedWithWrappedCFException(h, ex);
2327 <            assertEquals(0, r.invocationCount);
2326 >            checkCompletedWithWrappedException(h0, ex);
2327 >            rs[0].assertNotInvoked();
2328          }
1979
1980        checkCompletedWithWrappedCFException(g, ex);
1981        checkCompletedNormally(f, v1);
1982    }}
1983
1984    public void testAcceptEither_exceptionalCompletion4() {
1985        for (ExecutionMode m : ExecutionMode.values())
1986        for (Integer v1 : new Integer[] { 1, null })
1987    {
1988        final CompletableFuture<Integer> f = new CompletableFuture<>();
1989        final CompletableFuture<Integer> g = new CompletableFuture<>();
1990        final IncAction r = new IncAction();
1991        final CFException ex = new CFException();
1992
1993        f.completeExceptionally(ex);
1994        g.complete(v1);
1995        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
1996
1997        // unspecified behavior
1998        Integer v;
2329          try {
2330 <            assertNull(h.join());
2331 <            assertEquals(1, r.invocationCount);
2002 <            assertEquals(inc(v1), r.value);
2330 >            assertEquals(null, h1.join());
2331 >            rs[1].assertValue(v1);
2332          } catch (CompletionException ok) {
2333 <            checkCompletedWithWrappedCFException(h, ex);
2334 <            assertEquals(0, r.invocationCount);
2333 >            checkCompletedWithWrappedException(h1, ex);
2334 >            rs[1].assertNotInvoked();
2335 >        }
2336 >        try {
2337 >            assertEquals(null, h2.join());
2338 >            rs[2].assertValue(v1);
2339 >        } catch (CompletionException ok) {
2340 >            checkCompletedWithWrappedException(h2, ex);
2341 >            rs[2].assertNotInvoked();
2342 >        }
2343 >        try {
2344 >            assertEquals(null, h3.join());
2345 >            rs[3].assertValue(v1);
2346 >        } catch (CompletionException ok) {
2347 >            checkCompletedWithWrappedException(h3, ex);
2348 >            rs[3].assertNotInvoked();
2349          }
2350  
2008        checkCompletedWithWrappedCFException(f, ex);
2009        checkCompletedNormally(g, v1);
2010    }}
2011
2012    /**
2013     * acceptEither result completes exceptionally if action does
2014     */
2015    public void testAcceptEither_actionFailed1() {
2016        for (ExecutionMode m : ExecutionMode.values())
2017        for (Integer v1 : new Integer[] { 1, null })
2018        for (Integer v2 : new Integer[] { 2, null })
2019    {
2020        final CompletableFuture<Integer> f = new CompletableFuture<>();
2021        final CompletableFuture<Integer> g = new CompletableFuture<>();
2022        final FailingConsumer r = new FailingConsumer();
2023        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2024
2025        f.complete(v1);
2026        checkCompletedWithWrappedCFException(h);
2027        g.complete(v2);
2028        checkCompletedNormally(f, v1);
2029        checkCompletedNormally(g, v2);
2030    }}
2031
2032    public void testAcceptEither_actionFailed2() {
2033        for (ExecutionMode m : ExecutionMode.values())
2034        for (Integer v1 : new Integer[] { 1, null })
2035        for (Integer v2 : new Integer[] { 2, null })
2036    {
2037        final CompletableFuture<Integer> f = new CompletableFuture<>();
2038        final CompletableFuture<Integer> g = new CompletableFuture<>();
2039        final FailingConsumer r = new FailingConsumer();
2040        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2041
2042        g.complete(v2);
2043        checkCompletedWithWrappedCFException(h);
2044        f.complete(v1);
2351          checkCompletedNormally(f, v1);
2352 <        checkCompletedNormally(g, v2);
2352 >        checkCompletedExceptionally(g, ex);
2353      }}
2354  
2355      /**
2356       * acceptEither result completes exceptionally if either source cancelled
2357       */
2358 <    public void testAcceptEither_sourceCancelled1() {
2358 >    public void testAcceptEither_sourceCancelled() {
2359          for (ExecutionMode m : ExecutionMode.values())
2360          for (boolean mayInterruptIfRunning : new boolean[] { true, false })
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();
2366 <        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2061 <
2062 <        assertTrue(f.cancel(mayInterruptIfRunning));
2063 <        checkCompletedWithWrappedCancellationException(h);
2064 <        g.complete(v1);
2365 >        final NoopConsumer[] rs = new NoopConsumer[6];
2366 >        for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2367  
2368 <        checkCancelled(f);
2369 <        assertEquals(0, r.invocationCount);
2370 <        checkCompletedNormally(g, v1);
2371 <        checkCompletedWithWrappedCancellationException(h);
2372 <    }}
2368 >        final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2369 >        final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2370 >        checkIncomplete(h0);
2371 >        checkIncomplete(h1);
2372 >        rs[0].assertNotInvoked();
2373 >        rs[1].assertNotInvoked();
2374 >        f.cancel(mayInterruptIfRunning);
2375 >        checkCompletedWithWrappedCancellationException(h0);
2376 >        checkCompletedWithWrappedCancellationException(h1);
2377 >        final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2378 >        final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2379 >        checkCompletedWithWrappedCancellationException(h2);
2380 >        checkCompletedWithWrappedCancellationException(h3);
2381  
2382 <    public void testAcceptEither_sourceCancelled2() {
2073 <        for (ExecutionMode m : ExecutionMode.values())
2074 <        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2075 <        for (Integer v1 : new Integer[] { 1, null })
2076 <    {
2077 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
2078 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
2079 <        final IncAction r = new IncAction();
2080 <        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2081 <
2082 <        assertTrue(g.cancel(mayInterruptIfRunning));
2083 <        checkCompletedWithWrappedCancellationException(h);
2084 <        f.complete(v1);
2085 <
2086 <        checkCancelled(g);
2087 <        assertEquals(0, r.invocationCount);
2088 <        checkCompletedNormally(f, v1);
2089 <        checkCompletedWithWrappedCancellationException(h);
2090 <    }}
2091 <
2092 <    public void testAcceptEither_sourceCancelled3() {
2093 <        for (ExecutionMode m : ExecutionMode.values())
2094 <        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2095 <        for (Integer v1 : new Integer[] { 1, null })
2096 <    {
2097 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
2098 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
2099 <        final IncAction r = new IncAction();
2100 <
2101 <        assertTrue(g.cancel(mayInterruptIfRunning));
2102 <        f.complete(v1);
2103 <        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2382 >        g.complete(v1);
2383  
2384 <        // unspecified behavior
2385 <        Integer v;
2384 >        // unspecified behavior - both source completions available
2385 >        final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2386 >        final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2387          try {
2388 <            assertNull(h.join());
2389 <            assertEquals(1, r.invocationCount);
2110 <            assertEquals(inc(v1), r.value);
2388 >            assertNull(h4.join());
2389 >            rs[4].assertValue(v1);
2390          } catch (CompletionException ok) {
2391 <            checkCompletedWithWrappedCancellationException(h);
2392 <            assertEquals(0, r.invocationCount);
2391 >            checkCompletedWithWrappedCancellationException(h4);
2392 >            rs[4].assertNotInvoked();
2393          }
2115
2116        checkCancelled(g);
2117        checkCompletedNormally(f, v1);
2118    }}
2119
2120    public void testAcceptEither_sourceCancelled4() {
2121        for (ExecutionMode m : ExecutionMode.values())
2122        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2123        for (Integer v1 : new Integer[] { 1, null })
2124    {
2125        final CompletableFuture<Integer> f = new CompletableFuture<>();
2126        final CompletableFuture<Integer> g = new CompletableFuture<>();
2127        final IncAction r = new IncAction();
2128
2129        assertTrue(f.cancel(mayInterruptIfRunning));
2130        g.complete(v1);
2131        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2132
2133        // unspecified behavior
2134        Integer v;
2394          try {
2395 <            assertNull(h.join());
2396 <            assertEquals(1, r.invocationCount);
2138 <            assertEquals(inc(v1), r.value);
2395 >            assertNull(h5.join());
2396 >            rs[5].assertValue(v1);
2397          } catch (CompletionException ok) {
2398 <            checkCompletedWithWrappedCancellationException(h);
2399 <            assertEquals(0, r.invocationCount);
2398 >            checkCompletedWithWrappedCancellationException(h5);
2399 >            rs[5].assertNotInvoked();
2400          }
2401  
2402          checkCancelled(f);
2403          checkCompletedNormally(g, v1);
2404 +        checkCompletedWithWrappedCancellationException(h0);
2405 +        checkCompletedWithWrappedCancellationException(h1);
2406 +        checkCompletedWithWrappedCancellationException(h2);
2407 +        checkCompletedWithWrappedCancellationException(h3);
2408 +        for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2409      }}
2410  
2411      /**
2412 <     * runAfterEither result completes normally after normal completion
2150 <     * of either source
2412 >     * acceptEither result completes exceptionally if action does
2413       */
2414 <    public void testRunAfterEither_normalCompletion1() {
2414 >    public void testAcceptEither_actionFailed() {
2415          for (ExecutionMode m : ExecutionMode.values())
2416          for (Integer v1 : new Integer[] { 1, null })
2417          for (Integer v2 : new Integer[] { 2, null })
2418      {
2419          final CompletableFuture<Integer> f = new CompletableFuture<>();
2420          final CompletableFuture<Integer> g = new CompletableFuture<>();
2421 <        final Noop r = new Noop(m);
2422 <        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2421 >        final FailingConsumer[] rs = new FailingConsumer[6];
2422 >        for (int i = 0; i < rs.length; i++) rs[i] = new FailingConsumer(m);
2423  
2424 +        final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2425 +        final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2426          f.complete(v1);
2427 <        checkCompletedNormally(h, null);
2428 <        assertEquals(1, r.invocationCount);
2427 >        final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2428 >        final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2429 >        checkCompletedWithWrappedCFException(h0);
2430 >        checkCompletedWithWrappedCFException(h1);
2431 >        checkCompletedWithWrappedCFException(h2);
2432 >        checkCompletedWithWrappedCFException(h3);
2433 >        for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2434 >
2435          g.complete(v2);
2436  
2437 +        // unspecified behavior - both source completions available
2438 +        final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2439 +        final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2440 +
2441 +        checkCompletedWithWrappedCFException(h4);
2442 +        assertTrue(Objects.equals(v1, rs[4].value) ||
2443 +                   Objects.equals(v2, rs[4].value));
2444 +        checkCompletedWithWrappedCFException(h5);
2445 +        assertTrue(Objects.equals(v1, rs[5].value) ||
2446 +                   Objects.equals(v2, rs[5].value));
2447 +
2448          checkCompletedNormally(f, v1);
2449          checkCompletedNormally(g, v2);
2169        checkCompletedNormally(h, null);
2170        assertEquals(1, r.invocationCount);
2450      }}
2451  
2452 <    public void testRunAfterEither_normalCompletion2() {
2452 >    /**
2453 >     * runAfterEither result completes normally after normal completion
2454 >     * of either source
2455 >     */
2456 >    public void testRunAfterEither_normalCompletion() {
2457          for (ExecutionMode m : ExecutionMode.values())
2458          for (Integer v1 : new Integer[] { 1, null })
2459          for (Integer v2 : new Integer[] { 2, null })
2460      {
2461          final CompletableFuture<Integer> f = new CompletableFuture<>();
2462          final CompletableFuture<Integer> g = new CompletableFuture<>();
2463 <        final Noop r = new Noop(m);
2464 <        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2463 >        final Noop[] rs = new Noop[6];
2464 >        for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2465  
2466 <        g.complete(v2);
2467 <        checkCompletedNormally(h, null);
2468 <        assertEquals(1, r.invocationCount);
2466 >        final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2467 >        final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2468 >        checkIncomplete(h0);
2469 >        checkIncomplete(h1);
2470 >        rs[0].assertNotInvoked();
2471 >        rs[1].assertNotInvoked();
2472          f.complete(v1);
2473 +        checkCompletedNormally(h0, null);
2474 +        checkCompletedNormally(h1, null);
2475 +        rs[0].assertInvoked();
2476 +        rs[1].assertInvoked();
2477 +        final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2478 +        final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2479 +        checkCompletedNormally(h2, null);
2480 +        checkCompletedNormally(h3, null);
2481 +        rs[2].assertInvoked();
2482 +        rs[3].assertInvoked();
2483  
2188        checkCompletedNormally(f, v1);
2189        checkCompletedNormally(g, v2);
2190        checkCompletedNormally(h, null);
2191        assertEquals(1, r.invocationCount);
2192        }}
2193
2194    public void testRunAfterEither_normalCompletion3() {
2195        for (ExecutionMode m : ExecutionMode.values())
2196        for (Integer v1 : new Integer[] { 1, null })
2197        for (Integer v2 : new Integer[] { 2, null })
2198    {
2199        final CompletableFuture<Integer> f = new CompletableFuture<>();
2200        final CompletableFuture<Integer> g = new CompletableFuture<>();
2201        final Noop r = new Noop(m);
2202
2203        f.complete(v1);
2484          g.complete(v2);
2205        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2485  
2486 <        checkCompletedNormally(h, null);
2486 >        final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2487 >        final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2488 >
2489          checkCompletedNormally(f, v1);
2490          checkCompletedNormally(g, v2);
2491 <        assertEquals(1, r.invocationCount);
2491 >        checkCompletedNormally(h0, null);
2492 >        checkCompletedNormally(h1, null);
2493 >        checkCompletedNormally(h2, null);
2494 >        checkCompletedNormally(h3, null);
2495 >        checkCompletedNormally(h4, null);
2496 >        checkCompletedNormally(h5, null);
2497 >        for (int i = 0; i < 6; i++) rs[i].assertInvoked();
2498      }}
2499  
2500      /**
2501       * runAfterEither result completes exceptionally after exceptional
2502       * completion of either source
2503       */
2504 <    public void testRunAfterEither_exceptionalCompletion1() {
2504 >    public void testRunAfterEither_exceptionalCompletion() {
2505          for (ExecutionMode m : ExecutionMode.values())
2506          for (Integer v1 : new Integer[] { 1, null })
2507      {
2508          final CompletableFuture<Integer> f = new CompletableFuture<>();
2509          final CompletableFuture<Integer> g = new CompletableFuture<>();
2223        final Noop r = new Noop(m);
2224        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2510          final CFException ex = new CFException();
2511 +        final Noop[] rs = new Noop[6];
2512 +        for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2513  
2514 +        final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2515 +        final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2516 +        checkIncomplete(h0);
2517 +        checkIncomplete(h1);
2518 +        rs[0].assertNotInvoked();
2519 +        rs[1].assertNotInvoked();
2520          f.completeExceptionally(ex);
2521 <        checkCompletedWithWrappedCFException(h, ex);
2521 >        checkCompletedWithWrappedException(h0, ex);
2522 >        checkCompletedWithWrappedException(h1, ex);
2523 >        final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2524 >        final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2525 >        checkCompletedWithWrappedException(h2, ex);
2526 >        checkCompletedWithWrappedException(h3, ex);
2527 >
2528          g.complete(v1);
2529  
2530 <        assertEquals(0, r.invocationCount);
2530 >        // unspecified behavior - both source completions available
2531 >        final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2532 >        final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2533 >        try {
2534 >            assertNull(h4.join());
2535 >            rs[4].assertInvoked();
2536 >        } catch (CompletionException ok) {
2537 >            checkCompletedWithWrappedException(h4, ex);
2538 >            rs[4].assertNotInvoked();
2539 >        }
2540 >        try {
2541 >            assertNull(h5.join());
2542 >            rs[5].assertInvoked();
2543 >        } catch (CompletionException ok) {
2544 >            checkCompletedWithWrappedException(h5, ex);
2545 >            rs[5].assertNotInvoked();
2546 >        }
2547 >
2548 >        checkCompletedExceptionally(f, ex);
2549          checkCompletedNormally(g, v1);
2550 <        checkCompletedWithWrappedCFException(f, ex);
2551 <        checkCompletedWithWrappedCFException(h, ex);
2550 >        checkCompletedWithWrappedException(h0, ex);
2551 >        checkCompletedWithWrappedException(h1, ex);
2552 >        checkCompletedWithWrappedException(h2, ex);
2553 >        checkCompletedWithWrappedException(h3, ex);
2554 >        checkCompletedWithWrappedException(h4, ex);
2555 >        for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2556      }}
2557  
2558      public void testRunAfterEither_exceptionalCompletion2() {
2559          for (ExecutionMode m : ExecutionMode.values())
2560 +        for (boolean fFirst : new boolean[] { true, false })
2561          for (Integer v1 : new Integer[] { 1, null })
2562      {
2563          final CompletableFuture<Integer> f = new CompletableFuture<>();
2564          final CompletableFuture<Integer> g = new CompletableFuture<>();
2243        final Noop r = new Noop(m);
2244        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2245        final CFException ex = new CFException();
2246
2247        g.completeExceptionally(ex);
2248        checkCompletedWithWrappedCFException(h, ex);
2249        f.complete(v1);
2250
2251        assertEquals(0, r.invocationCount);
2252        checkCompletedNormally(f, v1);
2253        checkCompletedWithWrappedCFException(g, ex);
2254        checkCompletedWithWrappedCFException(h, ex);
2255    }}
2256
2257    public void testRunAfterEither_exceptionalCompletion3() {
2258        for (ExecutionMode m : ExecutionMode.values())
2259        for (Integer v1 : new Integer[] { 1, null })
2260    {
2261        final CompletableFuture<Integer> f = new CompletableFuture<>();
2262        final CompletableFuture<Integer> g = new CompletableFuture<>();
2263        final Noop r = new Noop(m);
2565          final CFException ex = new CFException();
2566 +        final Noop[] rs = new Noop[6];
2567 +        for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2568  
2569 <        g.completeExceptionally(ex);
2570 <        f.complete(v1);
2571 <        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2569 >        final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2570 >        final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2571 >        if (fFirst) {
2572 >            f.complete(v1);
2573 >            g.completeExceptionally(ex);
2574 >        } else {
2575 >            g.completeExceptionally(ex);
2576 >            f.complete(v1);
2577 >        }
2578 >        final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2579 >        final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2580  
2581 <        // unspecified behavior
2582 <        Integer v;
2581 >        // unspecified behavior - both source completions available
2582 >        try {
2583 >            assertEquals(null, h0.join());
2584 >            rs[0].assertInvoked();
2585 >        } catch (CompletionException ok) {
2586 >            checkCompletedWithWrappedException(h0, ex);
2587 >            rs[0].assertNotInvoked();
2588 >        }
2589          try {
2590 <            assertNull(h.join());
2591 <            assertEquals(1, r.invocationCount);
2590 >            assertEquals(null, h1.join());
2591 >            rs[1].assertInvoked();
2592          } catch (CompletionException ok) {
2593 <            checkCompletedWithWrappedCFException(h, ex);
2594 <            assertEquals(0, r.invocationCount);
2593 >            checkCompletedWithWrappedException(h1, ex);
2594 >            rs[1].assertNotInvoked();
2595 >        }
2596 >        try {
2597 >            assertEquals(null, h2.join());
2598 >            rs[2].assertInvoked();
2599 >        } catch (CompletionException ok) {
2600 >            checkCompletedWithWrappedException(h2, ex);
2601 >            rs[2].assertNotInvoked();
2602 >        }
2603 >        try {
2604 >            assertEquals(null, h3.join());
2605 >            rs[3].assertInvoked();
2606 >        } catch (CompletionException ok) {
2607 >            checkCompletedWithWrappedException(h3, ex);
2608 >            rs[3].assertNotInvoked();
2609          }
2610  
2280        checkCompletedWithWrappedCFException(g, ex);
2611          checkCompletedNormally(f, v1);
2612 +        checkCompletedExceptionally(g, ex);
2613      }}
2614  
2615 <    public void testRunAfterEither_exceptionalCompletion4() {
2615 >    /**
2616 >     * runAfterEither result completes exceptionally if either source cancelled
2617 >     */
2618 >    public void testRunAfterEither_sourceCancelled() {
2619          for (ExecutionMode m : ExecutionMode.values())
2620 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2621          for (Integer v1 : new Integer[] { 1, null })
2622      {
2623          final CompletableFuture<Integer> f = new CompletableFuture<>();
2624          final CompletableFuture<Integer> g = new CompletableFuture<>();
2625 <        final Noop r = new Noop(m);
2626 <        final CFException ex = new CFException();
2625 >        final Noop[] rs = new Noop[6];
2626 >        for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2627 >
2628 >        final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2629 >        final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2630 >        checkIncomplete(h0);
2631 >        checkIncomplete(h1);
2632 >        rs[0].assertNotInvoked();
2633 >        rs[1].assertNotInvoked();
2634 >        f.cancel(mayInterruptIfRunning);
2635 >        checkCompletedWithWrappedCancellationException(h0);
2636 >        checkCompletedWithWrappedCancellationException(h1);
2637 >        final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2638 >        final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2639 >        checkCompletedWithWrappedCancellationException(h2);
2640 >        checkCompletedWithWrappedCancellationException(h3);
2641  
2293        f.completeExceptionally(ex);
2642          g.complete(v1);
2295        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2643  
2644 <        // unspecified behavior
2645 <        Integer v;
2644 >        // unspecified behavior - both source completions available
2645 >        final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2646 >        final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2647 >        try {
2648 >            assertNull(h4.join());
2649 >            rs[4].assertInvoked();
2650 >        } catch (CompletionException ok) {
2651 >            checkCompletedWithWrappedCancellationException(h4);
2652 >            rs[4].assertNotInvoked();
2653 >        }
2654          try {
2655 <            assertNull(h.join());
2656 <            assertEquals(1, r.invocationCount);
2655 >            assertNull(h5.join());
2656 >            rs[5].assertInvoked();
2657          } catch (CompletionException ok) {
2658 <            checkCompletedWithWrappedCFException(h, ex);
2659 <            assertEquals(0, r.invocationCount);
2658 >            checkCompletedWithWrappedCancellationException(h5);
2659 >            rs[5].assertNotInvoked();
2660          }
2661  
2662 <        checkCompletedWithWrappedCFException(f, ex);
2662 >        checkCancelled(f);
2663          checkCompletedNormally(g, v1);
2664 +        checkCompletedWithWrappedCancellationException(h0);
2665 +        checkCompletedWithWrappedCancellationException(h1);
2666 +        checkCompletedWithWrappedCancellationException(h2);
2667 +        checkCompletedWithWrappedCancellationException(h3);
2668 +        for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2669      }}
2670  
2671      /**
2672       * runAfterEither result completes exceptionally if action does
2673       */
2674 <    public void testRunAfterEither_actionFailed1() {
2674 >    public void testRunAfterEither_actionFailed() {
2675          for (ExecutionMode m : ExecutionMode.values())
2676          for (Integer v1 : new Integer[] { 1, null })
2677          for (Integer v2 : new Integer[] { 2, null })
2678      {
2679          final CompletableFuture<Integer> f = new CompletableFuture<>();
2680          final CompletableFuture<Integer> g = new CompletableFuture<>();
2681 <        final FailingRunnable r = new FailingRunnable();
2682 <        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2681 >        final FailingRunnable[] rs = new FailingRunnable[6];
2682 >        for (int i = 0; i < rs.length; i++) rs[i] = new FailingRunnable(m);
2683  
2684 +        final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2685 +        final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2686          f.complete(v1);
2687 <        checkCompletedWithWrappedCFException(h);
2687 >        final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2688 >        final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2689 >        checkCompletedWithWrappedCFException(h0);
2690 >        checkCompletedWithWrappedCFException(h1);
2691 >        checkCompletedWithWrappedCFException(h2);
2692 >        checkCompletedWithWrappedCFException(h3);
2693 >        for (int i = 0; i < 4; i++) rs[i].assertInvoked();
2694          g.complete(v2);
2695 <        checkCompletedNormally(f, v1);
2696 <        checkCompletedNormally(g, v2);
2697 <    }}
2695 >        final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2696 >        final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2697 >        checkCompletedWithWrappedCFException(h4);
2698 >        checkCompletedWithWrappedCFException(h5);
2699  
2331    public void testRunAfterEither_actionFailed2() {
2332        for (ExecutionMode m : ExecutionMode.values())
2333        for (Integer v1 : new Integer[] { 1, null })
2334        for (Integer v2 : new Integer[] { 2, null })
2335    {
2336        final CompletableFuture<Integer> f = new CompletableFuture<>();
2337        final CompletableFuture<Integer> g = new CompletableFuture<>();
2338        final FailingRunnable r = new FailingRunnable();
2339        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2340
2341        g.complete(v2);
2342        checkCompletedWithWrappedCFException(h);
2343        f.complete(v1);
2700          checkCompletedNormally(f, v1);
2701          checkCompletedNormally(g, v2);
2702 <    }}
2347 <
2348 <    /**
2349 <     * runAfterEither result completes exceptionally if either source cancelled
2350 <     */
2351 <    public void testRunAfterEither_sourceCancelled1() {
2352 <        for (ExecutionMode m : ExecutionMode.values())
2353 <        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2354 <        for (Integer v1 : new Integer[] { 1, null })
2355 <    {
2356 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
2357 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
2358 <        final Noop r = new Noop(m);
2359 <        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2360 <
2361 <        assertTrue(f.cancel(mayInterruptIfRunning));
2362 <        checkCompletedWithWrappedCancellationException(h);
2363 <        g.complete(v1);
2364 <
2365 <        checkCancelled(f);
2366 <        assertEquals(0, r.invocationCount);
2367 <        checkCompletedNormally(g, v1);
2368 <        checkCompletedWithWrappedCancellationException(h);
2369 <    }}
2370 <
2371 <    public void testRunAfterEither_sourceCancelled2() {
2372 <        for (ExecutionMode m : ExecutionMode.values())
2373 <        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2374 <        for (Integer v1 : new Integer[] { 1, null })
2375 <    {
2376 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
2377 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
2378 <        final Noop r = new Noop(m);
2379 <        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2380 <
2381 <        assertTrue(g.cancel(mayInterruptIfRunning));
2382 <        checkCompletedWithWrappedCancellationException(h);
2383 <        f.complete(v1);
2384 <
2385 <        checkCancelled(g);
2386 <        assertEquals(0, r.invocationCount);
2387 <        checkCompletedNormally(f, v1);
2388 <        checkCompletedWithWrappedCancellationException(h);
2389 <    }}
2390 <
2391 <    public void testRunAfterEither_sourceCancelled3() {
2392 <        for (ExecutionMode m : ExecutionMode.values())
2393 <        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2394 <        for (Integer v1 : new Integer[] { 1, null })
2395 <    {
2396 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
2397 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
2398 <        final Noop r = new Noop(m);
2399 <
2400 <        assertTrue(g.cancel(mayInterruptIfRunning));
2401 <        f.complete(v1);
2402 <        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2403 <
2404 <        // unspecified behavior
2405 <        Integer v;
2406 <        try {
2407 <            assertNull(h.join());
2408 <            assertEquals(1, r.invocationCount);
2409 <        } catch (CompletionException ok) {
2410 <            checkCompletedWithWrappedCancellationException(h);
2411 <            assertEquals(0, r.invocationCount);
2412 <        }
2413 <
2414 <        checkCancelled(g);
2415 <        checkCompletedNormally(f, v1);
2416 <    }}
2417 <
2418 <    public void testRunAfterEither_sourceCancelled4() {
2419 <        for (ExecutionMode m : ExecutionMode.values())
2420 <        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2421 <        for (Integer v1 : new Integer[] { 1, null })
2422 <    {
2423 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
2424 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
2425 <        final Noop r = new Noop(m);
2426 <
2427 <        assertTrue(f.cancel(mayInterruptIfRunning));
2428 <        g.complete(v1);
2429 <        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2430 <
2431 <        // unspecified behavior
2432 <        Integer v;
2433 <        try {
2434 <            assertNull(h.join());
2435 <            assertEquals(1, r.invocationCount);
2436 <        } catch (CompletionException ok) {
2437 <            checkCompletedWithWrappedCancellationException(h);
2438 <            assertEquals(0, r.invocationCount);
2439 <        }
2440 <
2441 <        checkCancelled(f);
2442 <        checkCompletedNormally(g, v1);
2702 >        for (int i = 0; i < 6; i++) rs[i].assertInvoked();
2703      }}
2704  
2705      /**
# Line 2451 | Line 2711 | public class CompletableFutureTest exten
2711          for (Integer v1 : new Integer[] { 1, null })
2712      {
2713          final CompletableFuture<Integer> f = new CompletableFuture<>();
2714 <        final CompletableFutureInc r = new CompletableFutureInc();
2714 >        final CompletableFutureInc r = new CompletableFutureInc(m);
2715          if (!createIncomplete) f.complete(v1);
2716 <        final CompletableFuture<Integer> g = f.thenCompose(r);
2716 >        final CompletableFuture<Integer> g = m.thenCompose(f, r);
2717          if (createIncomplete) f.complete(v1);
2718  
2719          checkCompletedNormally(g, inc(v1));
2720          checkCompletedNormally(f, v1);
2721 <        assertEquals(1, r.invocationCount);
2721 >        r.assertValue(v1);
2722      }}
2723  
2724      /**
# Line 2470 | Line 2730 | public class CompletableFutureTest exten
2730          for (boolean createIncomplete : new boolean[] { true, false })
2731      {
2732          final CFException ex = new CFException();
2733 <        final CompletableFutureInc r = new CompletableFutureInc();
2733 >        final CompletableFutureInc r = new CompletableFutureInc(m);
2734          final CompletableFuture<Integer> f = new CompletableFuture<>();
2735          if (!createIncomplete) f.completeExceptionally(ex);
2736 <        final CompletableFuture<Integer> g = f.thenCompose(r);
2736 >        final CompletableFuture<Integer> g = m.thenCompose(f, r);
2737          if (createIncomplete) f.completeExceptionally(ex);
2738  
2739 <        checkCompletedWithWrappedCFException(g, ex);
2740 <        checkCompletedWithWrappedCFException(f, ex);
2741 <        assertEquals(0, r.invocationCount);
2739 >        checkCompletedWithWrappedException(g, ex);
2740 >        checkCompletedExceptionally(f, ex);
2741 >        r.assertNotInvoked();
2742      }}
2743  
2744      /**
# Line 2491 | Line 2751 | public class CompletableFutureTest exten
2751      {
2752          final CompletableFuture<Integer> f = new CompletableFuture<>();
2753          final FailingCompletableFutureFunction r
2754 <            = new FailingCompletableFutureFunction();
2754 >            = new FailingCompletableFutureFunction(m);
2755          if (!createIncomplete) f.complete(v1);
2756 <        final CompletableFuture<Integer> g = f.thenCompose(r);
2756 >        final CompletableFuture<Integer> g = m.thenCompose(f, r);
2757          if (createIncomplete) f.complete(v1);
2758  
2759          checkCompletedWithWrappedCFException(g);
# Line 2509 | Line 2769 | public class CompletableFutureTest exten
2769          for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2770      {
2771          final CompletableFuture<Integer> f = new CompletableFuture<>();
2772 <        final CompletableFutureInc r = new CompletableFutureInc();
2772 >        final CompletableFutureInc r = new CompletableFutureInc(m);
2773          if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
2774 <        final CompletableFuture<Integer> g = f.thenCompose(r);
2774 >        final CompletableFuture<Integer> g = m.thenCompose(f, r);
2775          if (createIncomplete) {
2776              checkIncomplete(g);
2777              assertTrue(f.cancel(mayInterruptIfRunning));
# Line 2538 | Line 2798 | public class CompletableFutureTest exten
2798       */
2799      public void testAllOf_normal() throws Exception {
2800          for (int k = 1; k < 20; ++k) {
2801 <            CompletableFuture<Integer>[] fs = (CompletableFuture<Integer>[]) new CompletableFuture[k];
2801 >            CompletableFuture<Integer>[] fs
2802 >                = (CompletableFuture<Integer>[]) new CompletableFuture[k];
2803              for (int i = 0; i < k; ++i)
2804                  fs[i] = new CompletableFuture<>();
2805              CompletableFuture<Void> f = CompletableFuture.allOf(fs);
# Line 2552 | Line 2813 | public class CompletableFutureTest exten
2813          }
2814      }
2815  
2816 +    public void testAllOf_backwards() throws Exception {
2817 +        for (int k = 1; k < 20; ++k) {
2818 +            CompletableFuture<Integer>[] fs
2819 +                = (CompletableFuture<Integer>[]) new CompletableFuture[k];
2820 +            for (int i = 0; i < k; ++i)
2821 +                fs[i] = new CompletableFuture<>();
2822 +            CompletableFuture<Void> f = CompletableFuture.allOf(fs);
2823 +            for (int i = k - 1; i >= 0; i--) {
2824 +                checkIncomplete(f);
2825 +                checkIncomplete(CompletableFuture.allOf(fs));
2826 +                fs[i].complete(one);
2827 +            }
2828 +            checkCompletedNormally(f, null);
2829 +            checkCompletedNormally(CompletableFuture.allOf(fs), null);
2830 +        }
2831 +    }
2832 +
2833      /**
2834       * anyOf(no component futures) returns an incomplete future
2835       */
# Line 2610 | Line 2888 | public class CompletableFutureTest exten
2888          Runnable[] throwingActions = {
2889              () -> CompletableFuture.supplyAsync(null),
2890              () -> CompletableFuture.supplyAsync(null, exec),
2891 <            () -> CompletableFuture.supplyAsync(supplyOne, null),
2891 >            () -> CompletableFuture.supplyAsync(new IntegerSupplier(ExecutionMode.DEFAULT, 42), null),
2892  
2893              () -> CompletableFuture.runAsync(null),
2894              () -> CompletableFuture.runAsync(null, exec),
# Line 2683 | Line 2961 | public class CompletableFutureTest exten
2961  
2962              () -> f.thenCompose(null),
2963              () -> f.thenComposeAsync(null),
2964 <            () -> f.thenComposeAsync(new CompletableFutureInc(), null),
2964 >            () -> f.thenComposeAsync(new CompletableFutureInc(ExecutionMode.EXECUTOR), null),
2965              () -> f.thenComposeAsync(null, exec),
2966  
2967              () -> f.exceptionally(null),
# Line 2715 | Line 2993 | public class CompletableFutureTest exten
2993          assertSame(f, f.toCompletableFuture());
2994      }
2995  
2718    /**
2719     * whenComplete action executes on normal completion, propagating
2720     * source result.
2721     */
2722    public void testWhenComplete_normalCompletion1() {
2723        for (ExecutionMode m : ExecutionMode.values())
2724        for (boolean createIncomplete : new boolean[] { true, false })
2725        for (Integer v1 : new Integer[] { 1, null })
2726    {
2727        final AtomicInteger a = new AtomicInteger(0);
2728        final CompletableFuture<Integer> f = new CompletableFuture<>();
2729        if (!createIncomplete) f.complete(v1);
2730        final CompletableFuture<Integer> g = m.whenComplete
2731            (f,
2732             (Integer x, Throwable t) -> {
2733                threadAssertSame(x, v1);
2734                threadAssertNull(t);
2735                a.getAndIncrement();
2736            });
2737        if (createIncomplete) f.complete(v1);
2738
2739        checkCompletedNormally(g, v1);
2740        checkCompletedNormally(f, v1);
2741        assertEquals(1, a.get());
2742    }}
2743
2744    /**
2745     * whenComplete action executes on exceptional completion, propagating
2746     * source result.
2747     */
2748    public void testWhenComplete_exceptionalCompletion() {
2749        for (ExecutionMode m : ExecutionMode.values())
2750        for (boolean createIncomplete : new boolean[] { true, false })
2751        for (Integer v1 : new Integer[] { 1, null })
2752    {
2753        final AtomicInteger a = new AtomicInteger(0);
2754        final CFException ex = new CFException();
2755        final CompletableFuture<Integer> f = new CompletableFuture<>();
2756        if (!createIncomplete) f.completeExceptionally(ex);
2757        final CompletableFuture<Integer> g = m.whenComplete
2758            (f,
2759             (Integer x, Throwable t) -> {
2760                threadAssertNull(x);
2761                threadAssertSame(t, ex);
2762                a.getAndIncrement();
2763            });
2764        if (createIncomplete) f.completeExceptionally(ex);
2765        checkCompletedWithWrappedCFException(f, ex);
2766        checkCompletedWithWrappedCFException(g, ex);
2767        assertEquals(1, a.get());
2768    }}
2769
2770    /**
2771     * whenComplete action executes on cancelled source, propagating
2772     * CancellationException.
2773     */
2774    public void testWhenComplete_sourceCancelled() {
2775        for (ExecutionMode m : ExecutionMode.values())
2776        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2777        for (boolean createIncomplete : new boolean[] { true, false })
2778    {
2779        final AtomicInteger a = new AtomicInteger(0);
2780        final CompletableFuture<Integer> f = new CompletableFuture<>();
2781        if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
2782        final CompletableFuture<Integer> g = m.whenComplete
2783            (f,
2784             (Integer x, Throwable t) -> {
2785                threadAssertNull(x);
2786                threadAssertTrue(t instanceof CancellationException);
2787                a.getAndIncrement();
2788            });
2789        if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
2790
2791        //try { g.join(); } catch (Throwable t) { throw new Error(t); }
2792        checkCompletedWithWrappedCancellationException(g);
2793        checkCancelled(f);
2794        assertEquals(1, a.get());
2795    }}
2796
2797    /**
2798     * If a whenComplete action throws an exception when triggered by
2799     * a normal completion, it completes exceptionally
2800     */
2801    public void testWhenComplete_actionFailed() {
2802        for (boolean createIncomplete : new boolean[] { true, false })
2803        for (ExecutionMode m : ExecutionMode.values())
2804        for (Integer v1 : new Integer[] { 1, null })
2805    {
2806        final AtomicInteger a = new AtomicInteger(0);
2807        final CFException ex = new CFException();
2808        final CompletableFuture<Integer> f = new CompletableFuture<>();
2809        if (!createIncomplete) f.complete(v1);
2810        final CompletableFuture<Integer> g = m.whenComplete
2811            (f,
2812             (Integer x, Throwable t) -> {
2813                threadAssertSame(x, v1);
2814                threadAssertNull(t);
2815                a.getAndIncrement();
2816                throw ex;
2817            });
2818        if (createIncomplete) f.complete(v1);
2819        checkCompletedNormally(f, v1);
2820        checkCompletedWithWrappedCFException(g, ex);
2821        assertEquals(1, a.get());
2822    }}
2823
2824    /**
2825     * If a whenComplete action throws an exception when triggered by
2826     * a source completion that also throws an exception, the source
2827     * exception takes precedence.
2828     */
2829    public void testWhenComplete_actionFailedSourceFailed() {
2830        for (boolean createIncomplete : new boolean[] { true, false })
2831        for (ExecutionMode m : ExecutionMode.values())
2832        for (Integer v1 : new Integer[] { 1, null })
2833    {
2834        final AtomicInteger a = new AtomicInteger(0);
2835        final CFException ex1 = new CFException();
2836        final CFException ex2 = new CFException();
2837        final CompletableFuture<Integer> f = new CompletableFuture<>();
2838
2839        if (!createIncomplete) f.completeExceptionally(ex1);
2840        final CompletableFuture<Integer> g = m.whenComplete
2841            (f,
2842             (Integer x, Throwable t) -> {
2843                threadAssertSame(t, ex1);
2844                threadAssertNull(x);
2845                a.getAndIncrement();
2846                throw ex2;
2847            });
2848        if (createIncomplete) f.completeExceptionally(ex1);
2849
2850        checkCompletedWithWrappedCFException(f, ex1);
2851        checkCompletedWithWrappedCFException(g, ex1);
2852        assertEquals(1, a.get());
2853    }}
2854
2996   }

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