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Comparing jsr166/src/test/tck/CompletableFutureTest.java (file contents):
Revision 1.51 by jsr166, Mon Jun 2 19:49:28 2014 UTC vs.
Revision 1.95 by jsr166, Wed Jun 25 15:32:10 2014 UTC

# Line 57 | Line 57 | public class CompletableFutureTest exten
57      }
58  
59      <T> void checkCompletedNormally(CompletableFuture<T> f, T value) {
60 <        try {
61 <            assertEquals(value, f.get(LONG_DELAY_MS, MILLISECONDS));
62 <        } catch (Throwable fail) { threadUnexpectedException(fail); }
60 >        checkTimedGet(f, value);
61 >
62          try {
63              assertEquals(value, f.join());
64          } catch (Throwable fail) { threadUnexpectedException(fail); }
# Line 76 | Line 75 | public class CompletableFutureTest exten
75      }
76  
77      void checkCompletedWithWrappedCFException(CompletableFuture<?> f) {
78 +        long startTime = System.nanoTime();
79 +        long timeoutMillis = LONG_DELAY_MS;
80          try {
81 <            f.get(LONG_DELAY_MS, MILLISECONDS);
81 >            f.get(timeoutMillis, MILLISECONDS);
82              shouldThrow();
83          } catch (ExecutionException success) {
84              assertTrue(success.getCause() instanceof CFException);
85          } catch (Throwable fail) { threadUnexpectedException(fail); }
86 +        assertTrue(millisElapsedSince(startTime) < timeoutMillis/2);
87 +
88          try {
89              f.join();
90              shouldThrow();
# Line 105 | Line 108 | public class CompletableFutureTest exten
108          assertTrue(f.toString().contains("[Completed exceptionally]"));
109      }
110  
111 <    void checkCompletedWithWrappedCFException(CompletableFuture<?> f,
112 <                                              CFException ex) {
111 >    <U> void checkCompletedExceptionallyWithRootCause(CompletableFuture<U> f,
112 >                                                      Throwable ex) {
113 >        long startTime = System.nanoTime();
114 >        long timeoutMillis = LONG_DELAY_MS;
115          try {
116 <            f.get(LONG_DELAY_MS, MILLISECONDS);
116 >            f.get(timeoutMillis, MILLISECONDS);
117              shouldThrow();
118          } catch (ExecutionException success) {
119              assertSame(ex, success.getCause());
120          } catch (Throwable fail) { threadUnexpectedException(fail); }
121 +        assertTrue(millisElapsedSince(startTime) < timeoutMillis/2);
122 +
123          try {
124              f.join();
125              shouldThrow();
# Line 131 | Line 138 | public class CompletableFutureTest exten
138          } catch (ExecutionException success) {
139              assertSame(ex, success.getCause());
140          } catch (Throwable fail) { threadUnexpectedException(fail); }
141 +
142          assertTrue(f.isDone());
143          assertFalse(f.isCancelled());
144          assertTrue(f.toString().contains("[Completed exceptionally]"));
145      }
146  
147 +    <U> void checkCompletedWithWrappedException(CompletableFuture<U> f,
148 +                                                Throwable ex) {
149 +        checkCompletedExceptionallyWithRootCause(f, ex);
150 +        try {
151 +            CompletableFuture<Throwable> spy = f.handle
152 +                ((U u, Throwable t) -> t);
153 +            assertTrue(spy.join() instanceof CompletionException);
154 +            assertSame(ex, spy.join().getCause());
155 +        } catch (Throwable fail) { threadUnexpectedException(fail); }
156 +    }
157 +
158 +    <U> void checkCompletedExceptionally(CompletableFuture<U> f, Throwable ex) {
159 +        checkCompletedExceptionallyWithRootCause(f, ex);
160 +        try {
161 +            CompletableFuture<Throwable> spy = f.handle
162 +                ((U u, Throwable t) -> t);
163 +            assertSame(ex, spy.join());
164 +        } catch (Throwable fail) { threadUnexpectedException(fail); }
165 +    }
166 +
167      void checkCancelled(CompletableFuture<?> f) {
168 +        long startTime = System.nanoTime();
169 +        long timeoutMillis = LONG_DELAY_MS;
170          try {
171 <            f.get(LONG_DELAY_MS, MILLISECONDS);
171 >            f.get(timeoutMillis, MILLISECONDS);
172              shouldThrow();
173          } catch (CancellationException success) {
174          } catch (Throwable fail) { threadUnexpectedException(fail); }
175 +        assertTrue(millisElapsedSince(startTime) < timeoutMillis/2);
176 +
177          try {
178              f.join();
179              shouldThrow();
# Line 162 | Line 194 | public class CompletableFutureTest exten
194      }
195  
196      void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) {
197 +        long startTime = System.nanoTime();
198 +        long timeoutMillis = LONG_DELAY_MS;
199          try {
200 <            f.get(LONG_DELAY_MS, MILLISECONDS);
200 >            f.get(timeoutMillis, MILLISECONDS);
201              shouldThrow();
202          } catch (ExecutionException success) {
203              assertTrue(success.getCause() instanceof CancellationException);
204          } catch (Throwable fail) { threadUnexpectedException(fail); }
205 +        assertTrue(millisElapsedSince(startTime) < timeoutMillis/2);
206 +
207          try {
208              f.join();
209              shouldThrow();
# Line 206 | Line 242 | public class CompletableFutureTest exten
242       * isCancelled, join, get, and getNow
243       */
244      public void testComplete() {
245 +        for (Integer v1 : new Integer[] { 1, null })
246 +    {
247          CompletableFuture<Integer> f = new CompletableFuture<>();
248          checkIncomplete(f);
249 <        f.complete(one);
250 <        checkCompletedNormally(f, one);
251 <    }
249 >        assertTrue(f.complete(v1));
250 >        assertFalse(f.complete(v1));
251 >        checkCompletedNormally(f, v1);
252 >    }}
253  
254      /**
255       * completeExceptionally completes exceptionally, as indicated by
# Line 218 | Line 257 | public class CompletableFutureTest exten
257       */
258      public void testCompleteExceptionally() {
259          CompletableFuture<Integer> f = new CompletableFuture<>();
260 +        CFException ex = new CFException();
261          checkIncomplete(f);
262 <        f.completeExceptionally(new CFException());
263 <        checkCompletedWithWrappedCFException(f);
262 >        f.completeExceptionally(ex);
263 >        checkCompletedExceptionally(f, ex);
264      }
265  
266      /**
# Line 228 | Line 268 | public class CompletableFutureTest exten
268       * methods isDone, isCancelled, join, get, and getNow
269       */
270      public void testCancel() {
271 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
272 +    {
273          CompletableFuture<Integer> f = new CompletableFuture<>();
274          checkIncomplete(f);
275          assertTrue(f.cancel(true));
276 +        assertTrue(f.cancel(true));
277          checkCancelled(f);
278 <    }
278 >    }}
279  
280      /**
281       * obtrudeValue forces completion with given value
# Line 240 | Line 283 | public class CompletableFutureTest exten
283      public void testObtrudeValue() {
284          CompletableFuture<Integer> f = new CompletableFuture<>();
285          checkIncomplete(f);
286 <        f.complete(one);
286 >        assertTrue(f.complete(one));
287          checkCompletedNormally(f, one);
288          f.obtrudeValue(three);
289          checkCompletedNormally(f, three);
# Line 261 | Line 304 | public class CompletableFutureTest exten
304       * obtrudeException forces completion with given exception
305       */
306      public void testObtrudeException() {
307 <        CompletableFuture<Integer> f = new CompletableFuture<>();
308 <        checkIncomplete(f);
309 <        f.complete(one);
310 <        checkCompletedNormally(f, one);
311 <        f.obtrudeException(new CFException());
269 <        checkCompletedWithWrappedCFException(f);
307 >        for (Integer v1 : new Integer[] { 1, null })
308 >    {
309 >        CFException ex;
310 >        CompletableFuture<Integer> f;
311 >
312          f = new CompletableFuture<>();
313 <        f.obtrudeException(new CFException());
314 <        checkCompletedWithWrappedCFException(f);
313 >        assertTrue(f.complete(v1));
314 >        for (int i = 0; i < 2; i++) {
315 >            f.obtrudeException(ex = new CFException());
316 >            checkCompletedExceptionally(f, ex);
317 >        }
318 >
319          f = new CompletableFuture<>();
320 +        for (int i = 0; i < 2; i++) {
321 +            f.obtrudeException(ex = new CFException());
322 +            checkCompletedExceptionally(f, ex);
323 +        }
324 +
325 +        f = new CompletableFuture<>();
326 +        f.completeExceptionally(ex = new CFException());
327 +        f.obtrudeValue(v1);
328 +        checkCompletedNormally(f, v1);
329 +        f.obtrudeException(ex = new CFException());
330 +        checkCompletedExceptionally(f, ex);
331          f.completeExceptionally(new CFException());
332 <        f.obtrudeValue(four);
333 <        checkCompletedNormally(f, four);
334 <        f.obtrudeException(new CFException());
335 <        checkCompletedWithWrappedCFException(f);
279 <    }
332 >        checkCompletedExceptionally(f, ex);
333 >        assertFalse(f.complete(v1));
334 >        checkCompletedExceptionally(f, ex);
335 >    }}
336  
337      /**
338       * getNumberOfDependents returns number of dependent tasks
339       */
340      public void testGetNumberOfDependents() {
341 +        for (ExecutionMode m : ExecutionMode.values())
342 +        for (Integer v1 : new Integer[] { 1, null })
343 +    {
344          CompletableFuture<Integer> f = new CompletableFuture<>();
345          assertEquals(0, f.getNumberOfDependents());
346 <        CompletableFuture g = f.thenRun(new Noop());
346 >        final CompletableFuture<Void> g = m.thenRun(f, new Noop(m));
347          assertEquals(1, f.getNumberOfDependents());
348          assertEquals(0, g.getNumberOfDependents());
349 <        CompletableFuture h = f.thenRun(new Noop());
349 >        final CompletableFuture<Void> h = m.thenRun(f, new Noop(m));
350          assertEquals(2, f.getNumberOfDependents());
351 <        f.complete(1);
351 >        assertEquals(0, h.getNumberOfDependents());
352 >        assertTrue(f.complete(v1));
353          checkCompletedNormally(g, null);
354 +        checkCompletedNormally(h, null);
355          assertEquals(0, f.getNumberOfDependents());
356          assertEquals(0, g.getNumberOfDependents());
357 <    }
357 >        assertEquals(0, h.getNumberOfDependents());
358 >    }}
359  
360      /**
361       * toString indicates current completion state
# Line 304 | Line 366 | public class CompletableFutureTest exten
366          f = new CompletableFuture<String>();
367          assertTrue(f.toString().contains("[Not completed]"));
368  
369 <        f.complete("foo");
369 >        assertTrue(f.complete("foo"));
370          assertTrue(f.toString().contains("[Completed normally]"));
371  
372          f = new CompletableFuture<String>();
373 <        f.completeExceptionally(new IndexOutOfBoundsException());
373 >        assertTrue(f.completeExceptionally(new IndexOutOfBoundsException()));
374          assertTrue(f.toString().contains("[Completed exceptionally]"));
375 +
376 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false }) {
377 +            f = new CompletableFuture<String>();
378 +            assertTrue(f.cancel(mayInterruptIfRunning));
379 +            assertTrue(f.toString().contains("[Completed exceptionally]"));
380 +        }
381      }
382  
383      /**
# Line 320 | Line 388 | public class CompletableFutureTest exten
388          checkCompletedNormally(f, "test");
389      }
390  
391 <    // Choose non-commutative actions for better coverage
391 >    abstract class CheckedAction {
392 >        int invocationCount = 0;
393 >        final ExecutionMode m;
394 >        CheckedAction(ExecutionMode m) { this.m = m; }
395 >        void invoked() {
396 >            m.checkExecutionMode();
397 >            assertEquals(0, invocationCount++);
398 >        }
399 >        void assertNotInvoked() { assertEquals(0, invocationCount); }
400 >        void assertInvoked() { assertEquals(1, invocationCount); }
401 >    }
402  
403 <    // A non-commutative function that handles and produces null values as well.
404 <    static Integer subtract(Integer x, Integer y) {
405 <        return (x == null && y == null) ? null :
406 <            ((x == null) ? 42 : x.intValue())
407 <            - ((y == null) ? 99 : y.intValue());
403 >    abstract class CheckedIntegerAction extends CheckedAction {
404 >        Integer value;
405 >        CheckedIntegerAction(ExecutionMode m) { super(m); }
406 >        void assertValue(Integer expected) {
407 >            assertInvoked();
408 >            assertEquals(expected, value);
409 >        }
410 >    }
411 >
412 >    class IntegerSupplier extends CheckedAction
413 >        implements Supplier<Integer>
414 >    {
415 >        final Integer value;
416 >        IntegerSupplier(ExecutionMode m, Integer value) {
417 >            super(m);
418 >            this.value = value;
419 >        }
420 >        public Integer get() {
421 >            invoked();
422 >            return value;
423 >        }
424      }
425  
426      // A function that handles and produces null values as well.
# Line 334 | Line 428 | public class CompletableFutureTest exten
428          return (x == null) ? null : x + 1;
429      }
430  
431 <    static final Supplier<Integer> supplyOne =
432 <        () -> Integer.valueOf(1);
433 <    static final Function<Integer, Integer> inc =
434 <        (Integer x) -> Integer.valueOf(x.intValue() + 1);
341 <    static final BiFunction<Integer, Integer, Integer> subtract =
342 <        (Integer x, Integer y) -> subtract(x, y);
343 <    static final class IncAction implements Consumer<Integer> {
344 <        int invocationCount = 0;
345 <        Integer value;
431 >    class NoopConsumer extends CheckedIntegerAction
432 >        implements Consumer<Integer>
433 >    {
434 >        NoopConsumer(ExecutionMode m) { super(m); }
435          public void accept(Integer x) {
436 <            invocationCount++;
437 <            value = inc(x);
436 >            invoked();
437 >            value = x;
438          }
439      }
440 <    static final class IncFunction implements Function<Integer,Integer> {
441 <        int invocationCount = 0;
442 <        Integer value;
440 >
441 >    class IncFunction extends CheckedIntegerAction
442 >        implements Function<Integer,Integer>
443 >    {
444 >        IncFunction(ExecutionMode m) { super(m); }
445          public Integer apply(Integer x) {
446 <            invocationCount++;
446 >            invoked();
447              return value = inc(x);
448          }
449      }
450 <    static final class SubtractAction implements BiConsumer<Integer, Integer> {
451 <        int invocationCount = 0;
452 <        Integer value;
453 <        // Check this action was invoked exactly once when result is computed.
450 >
451 >    // Choose non-commutative actions for better coverage
452 >    // A non-commutative function that handles and produces null values as well.
453 >    static Integer subtract(Integer x, Integer y) {
454 >        return (x == null && y == null) ? null :
455 >            ((x == null) ? 42 : x.intValue())
456 >            - ((y == null) ? 99 : y.intValue());
457 >    }
458 >
459 >    class SubtractAction extends CheckedIntegerAction
460 >        implements BiConsumer<Integer, Integer>
461 >    {
462 >        SubtractAction(ExecutionMode m) { super(m); }
463          public void accept(Integer x, Integer y) {
464 <            invocationCount++;
464 >            invoked();
465              value = subtract(x, y);
466          }
467      }
468 <    static final class SubtractFunction implements BiFunction<Integer, Integer, Integer> {
469 <        int invocationCount = 0;
470 <        Integer value;
471 <        // Check this action was invoked exactly once when result is computed.
468 >
469 >    class SubtractFunction extends CheckedIntegerAction
470 >        implements BiFunction<Integer, Integer, Integer>
471 >    {
472 >        SubtractFunction(ExecutionMode m) { super(m); }
473          public Integer apply(Integer x, Integer y) {
474 <            invocationCount++;
474 >            invoked();
475              return value = subtract(x, y);
476          }
477      }
478 <    static final class Noop implements Runnable {
479 <        int invocationCount = 0;
478 >
479 >    class Noop extends CheckedAction implements Runnable {
480 >        Noop(ExecutionMode m) { super(m); }
481          public void run() {
482 <            invocationCount++;
482 >            invoked();
483          }
484      }
485  
486 <    static final class FailingSupplier implements Supplier<Integer> {
487 <        int invocationCount = 0;
486 >    class FailingSupplier extends CheckedAction
487 >        implements Supplier<Integer>
488 >    {
489 >        FailingSupplier(ExecutionMode m) { super(m); }
490          public Integer get() {
491 <            invocationCount++;
491 >            invoked();
492              throw new CFException();
493          }
494      }
495 <    static final class FailingConsumer implements Consumer<Integer> {
496 <        int invocationCount = 0;
495 >
496 >    class FailingConsumer extends CheckedIntegerAction
497 >        implements Consumer<Integer>
498 >    {
499 >        FailingConsumer(ExecutionMode m) { super(m); }
500          public void accept(Integer x) {
501 <            invocationCount++;
501 >            invoked();
502 >            value = x;
503              throw new CFException();
504          }
505      }
506 <    static final class FailingBiConsumer implements BiConsumer<Integer, Integer> {
507 <        int invocationCount = 0;
506 >
507 >    class FailingBiConsumer extends CheckedIntegerAction
508 >        implements BiConsumer<Integer, Integer>
509 >    {
510 >        FailingBiConsumer(ExecutionMode m) { super(m); }
511          public void accept(Integer x, Integer y) {
512 <            invocationCount++;
512 >            invoked();
513 >            value = subtract(x, y);
514              throw new CFException();
515          }
516      }
517 <    static final class FailingFunction implements Function<Integer, Integer> {
518 <        int invocationCount = 0;
517 >
518 >    class FailingFunction extends CheckedIntegerAction
519 >        implements Function<Integer, Integer>
520 >    {
521 >        FailingFunction(ExecutionMode m) { super(m); }
522          public Integer apply(Integer x) {
523 <            invocationCount++;
523 >            invoked();
524 >            value = x;
525              throw new CFException();
526          }
527      }
528 <    static final class FailingBiFunction implements BiFunction<Integer, Integer, Integer> {
529 <        int invocationCount = 0;
528 >
529 >    class FailingBiFunction extends CheckedIntegerAction
530 >        implements BiFunction<Integer, Integer, Integer>
531 >    {
532 >        FailingBiFunction(ExecutionMode m) { super(m); }
533          public Integer apply(Integer x, Integer y) {
534 <            invocationCount++;
534 >            invoked();
535 >            value = subtract(x, y);
536              throw new CFException();
537          }
538      }
539 <    static final class FailingRunnable implements Runnable {
540 <        int invocationCount = 0;
539 >
540 >    class FailingRunnable extends CheckedAction implements Runnable {
541 >        FailingRunnable(ExecutionMode m) { super(m); }
542          public void run() {
543 <            invocationCount++;
543 >            invoked();
544              throw new CFException();
545          }
546      }
547  
548 <    static final class CompletableFutureInc
549 <        implements Function<Integer, CompletableFuture<Integer>> {
550 <        int invocationCount = 0;
548 >
549 >    class CompletableFutureInc extends CheckedIntegerAction
550 >        implements Function<Integer, CompletableFuture<Integer>>
551 >    {
552 >        CompletableFutureInc(ExecutionMode m) { super(m); }
553          public CompletableFuture<Integer> apply(Integer x) {
554 <            invocationCount++;
554 >            invoked();
555 >            value = x;
556              CompletableFuture<Integer> f = new CompletableFuture<>();
557 <            f.complete(inc(x));
557 >            assertTrue(f.complete(inc(x)));
558              return f;
559          }
560      }
561  
562 <    static final class FailingCompletableFutureFunction
563 <        implements Function<Integer, CompletableFuture<Integer>> {
564 <        int invocationCount = 0;
562 >    class FailingCompletableFutureFunction extends CheckedIntegerAction
563 >        implements Function<Integer, CompletableFuture<Integer>>
564 >    {
565 >        FailingCompletableFutureFunction(ExecutionMode m) { super(m); }
566          public CompletableFuture<Integer> apply(Integer x) {
567 <            invocationCount++;
567 >            invoked();
568 >            value = x;
569              throw new CFException();
570          }
571      }
572  
573      // Used for explicit executor tests
574      static final class ThreadExecutor implements Executor {
575 <        AtomicInteger count = new AtomicInteger(0);
575 >        final AtomicInteger count = new AtomicInteger(0);
576 >        static final ThreadGroup tg = new ThreadGroup("ThreadExecutor");
577 >        static boolean startedCurrentThread() {
578 >            return Thread.currentThread().getThreadGroup() == tg;
579 >        }
580  
581          public void execute(Runnable r) {
582              count.getAndIncrement();
583 <            new Thread(r).start();
583 >            new Thread(tg, r).start();
584          }
585      }
586  
587      /**
588       * Permits the testing of parallel code for the 3 different
589 <     * execution modes without repeating all the testing code.
589 >     * execution modes without copy/pasting all the test methods.
590       */
591      enum ExecutionMode {
592 <        DEFAULT {
592 >        SYNC {
593              public void checkExecutionMode() {
594 +                assertFalse(ThreadExecutor.startedCurrentThread());
595                  assertNull(ForkJoinTask.getPool());
596              }
597 +            public CompletableFuture<Void> runAsync(Runnable a) {
598 +                throw new UnsupportedOperationException();
599 +            }
600 +            public <U> CompletableFuture<U> supplyAsync(Supplier<U> a) {
601 +                throw new UnsupportedOperationException();
602 +            }
603              public <T> CompletableFuture<Void> thenRun
604                  (CompletableFuture<T> f, Runnable a) {
605                  return f.thenRun(a);
# Line 531 | Line 668 | public class CompletableFutureTest exten
668                  assertSame(ForkJoinPool.commonPool(),
669                             ForkJoinTask.getPool());
670              }
671 +            public CompletableFuture<Void> runAsync(Runnable a) {
672 +                return CompletableFuture.runAsync(a);
673 +            }
674 +            public <U> CompletableFuture<U> supplyAsync(Supplier<U> a) {
675 +                return CompletableFuture.supplyAsync(a);
676 +            }
677              public <T> CompletableFuture<Void> thenRun
678                  (CompletableFuture<T> f, Runnable a) {
679                  return f.thenRunAsync(a);
# Line 596 | Line 739 | public class CompletableFutureTest exten
739  
740          EXECUTOR {
741              public void checkExecutionMode() {
742 <                //TODO
742 >                assertTrue(ThreadExecutor.startedCurrentThread());
743 >            }
744 >            public CompletableFuture<Void> runAsync(Runnable a) {
745 >                return CompletableFuture.runAsync(a, new ThreadExecutor());
746 >            }
747 >            public <U> CompletableFuture<U> supplyAsync(Supplier<U> a) {
748 >                return CompletableFuture.supplyAsync(a, new ThreadExecutor());
749              }
750              public <T> CompletableFuture<Void> thenRun
751                  (CompletableFuture<T> f, Runnable a) {
# Line 662 | Line 811 | public class CompletableFutureTest exten
811          };
812  
813          public abstract void checkExecutionMode();
814 +        public abstract CompletableFuture<Void> runAsync(Runnable a);
815 +        public abstract <U> CompletableFuture<U> supplyAsync(Supplier<U> a);
816          public abstract <T> CompletableFuture<Void> thenRun
817              (CompletableFuture<T> f, Runnable a);
818          public abstract <T> CompletableFuture<Void> thenAccept
# Line 711 | Line 862 | public class CompletableFutureTest exten
862      {
863          final AtomicInteger a = new AtomicInteger(0);
864          final CompletableFuture<Integer> f = new CompletableFuture<>();
865 <        if (!createIncomplete) f.complete(v1);
865 >        if (!createIncomplete) assertTrue(f.complete(v1));
866          final CompletableFuture<Integer> g = f.exceptionally
867              ((Throwable t) -> {
868                  // Should not be called
869                  a.getAndIncrement();
870                  throw new AssertionError();
871              });
872 <        if (createIncomplete) f.complete(v1);
872 >        if (createIncomplete) assertTrue(f.complete(v1));
873  
874          checkCompletedNormally(g, v1);
875          checkCompletedNormally(f, v1);
876          assertEquals(0, a.get());
877      }}
878  
728
879      /**
880       * exceptionally action completes with function value on source
881       * exception
# Line 740 | Line 890 | public class CompletableFutureTest exten
890          if (!createIncomplete) f.completeExceptionally(ex);
891          final CompletableFuture<Integer> g = f.exceptionally
892              ((Throwable t) -> {
893 +                ExecutionMode.SYNC.checkExecutionMode();
894                  threadAssertSame(t, ex);
895                  a.getAndIncrement();
896                  return v1;
# Line 761 | Line 912 | public class CompletableFutureTest exten
912          if (!createIncomplete) f.completeExceptionally(ex1);
913          final CompletableFuture<Integer> g = f.exceptionally
914              ((Throwable t) -> {
915 +                ExecutionMode.SYNC.checkExecutionMode();
916 +                threadAssertSame(t, ex1);
917 +                a.getAndIncrement();
918 +                throw ex2;
919 +            });
920 +        if (createIncomplete) f.completeExceptionally(ex1);
921 +
922 +        checkCompletedWithWrappedException(g, ex2);
923 +        assertEquals(1, a.get());
924 +    }}
925 +
926 +    /**
927 +     * whenComplete action executes on normal completion, propagating
928 +     * source result.
929 +     */
930 +    public void testWhenComplete_normalCompletion1() {
931 +        for (ExecutionMode m : ExecutionMode.values())
932 +        for (boolean createIncomplete : new boolean[] { true, false })
933 +        for (Integer v1 : new Integer[] { 1, null })
934 +    {
935 +        final AtomicInteger a = new AtomicInteger(0);
936 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
937 +        if (!createIncomplete) assertTrue(f.complete(v1));
938 +        final CompletableFuture<Integer> g = m.whenComplete
939 +            (f,
940 +             (Integer x, Throwable t) -> {
941 +                m.checkExecutionMode();
942 +                threadAssertSame(x, v1);
943 +                threadAssertNull(t);
944 +                a.getAndIncrement();
945 +            });
946 +        if (createIncomplete) assertTrue(f.complete(v1));
947 +
948 +        checkCompletedNormally(g, v1);
949 +        checkCompletedNormally(f, v1);
950 +        assertEquals(1, a.get());
951 +    }}
952 +
953 +    /**
954 +     * whenComplete action executes on exceptional completion, propagating
955 +     * source result.
956 +     */
957 +    public void testWhenComplete_exceptionalCompletion() {
958 +        for (ExecutionMode m : ExecutionMode.values())
959 +        for (boolean createIncomplete : new boolean[] { true, false })
960 +        for (Integer v1 : new Integer[] { 1, null })
961 +    {
962 +        final AtomicInteger a = new AtomicInteger(0);
963 +        final CFException ex = new CFException();
964 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
965 +        if (!createIncomplete) f.completeExceptionally(ex);
966 +        final CompletableFuture<Integer> g = m.whenComplete
967 +            (f,
968 +             (Integer x, Throwable t) -> {
969 +                m.checkExecutionMode();
970 +                threadAssertNull(x);
971 +                threadAssertSame(t, ex);
972 +                a.getAndIncrement();
973 +            });
974 +        if (createIncomplete) f.completeExceptionally(ex);
975 +
976 +        checkCompletedWithWrappedException(g, ex);
977 +        checkCompletedExceptionally(f, ex);
978 +        assertEquals(1, a.get());
979 +    }}
980 +
981 +    /**
982 +     * whenComplete action executes on cancelled source, propagating
983 +     * CancellationException.
984 +     */
985 +    public void testWhenComplete_sourceCancelled() {
986 +        for (ExecutionMode m : ExecutionMode.values())
987 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
988 +        for (boolean createIncomplete : new boolean[] { true, false })
989 +    {
990 +        final AtomicInteger a = new AtomicInteger(0);
991 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
992 +        if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
993 +        final CompletableFuture<Integer> g = m.whenComplete
994 +            (f,
995 +             (Integer x, Throwable t) -> {
996 +                m.checkExecutionMode();
997 +                threadAssertNull(x);
998 +                threadAssertTrue(t instanceof CancellationException);
999 +                a.getAndIncrement();
1000 +            });
1001 +        if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1002 +
1003 +        checkCompletedWithWrappedCancellationException(g);
1004 +        checkCancelled(f);
1005 +        assertEquals(1, a.get());
1006 +    }}
1007 +
1008 +    /**
1009 +     * If a whenComplete action throws an exception when triggered by
1010 +     * a normal completion, it completes exceptionally
1011 +     */
1012 +    public void testWhenComplete_actionFailed() {
1013 +        for (boolean createIncomplete : new boolean[] { true, false })
1014 +        for (ExecutionMode m : ExecutionMode.values())
1015 +        for (Integer v1 : new Integer[] { 1, null })
1016 +    {
1017 +        final AtomicInteger a = new AtomicInteger(0);
1018 +        final CFException ex = new CFException();
1019 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1020 +        if (!createIncomplete) assertTrue(f.complete(v1));
1021 +        final CompletableFuture<Integer> g = m.whenComplete
1022 +            (f,
1023 +             (Integer x, Throwable t) -> {
1024 +                m.checkExecutionMode();
1025 +                threadAssertSame(x, v1);
1026 +                threadAssertNull(t);
1027 +                a.getAndIncrement();
1028 +                throw ex;
1029 +            });
1030 +        if (createIncomplete) assertTrue(f.complete(v1));
1031 +
1032 +        checkCompletedWithWrappedException(g, ex);
1033 +        checkCompletedNormally(f, v1);
1034 +        assertEquals(1, a.get());
1035 +    }}
1036 +
1037 +    /**
1038 +     * If a whenComplete action throws an exception when triggered by
1039 +     * a source completion that also throws an exception, the source
1040 +     * exception takes precedence.
1041 +     */
1042 +    public void testWhenComplete_actionFailedSourceFailed() {
1043 +        for (boolean createIncomplete : new boolean[] { true, false })
1044 +        for (ExecutionMode m : ExecutionMode.values())
1045 +        for (Integer v1 : new Integer[] { 1, null })
1046 +    {
1047 +        final AtomicInteger a = new AtomicInteger(0);
1048 +        final CFException ex1 = new CFException();
1049 +        final CFException ex2 = new CFException();
1050 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1051 +
1052 +        if (!createIncomplete) f.completeExceptionally(ex1);
1053 +        final CompletableFuture<Integer> g = m.whenComplete
1054 +            (f,
1055 +             (Integer x, Throwable t) -> {
1056 +                m.checkExecutionMode();
1057                  threadAssertSame(t, ex1);
1058 +                threadAssertNull(x);
1059                  a.getAndIncrement();
1060                  throw ex2;
1061              });
1062          if (createIncomplete) f.completeExceptionally(ex1);
1063  
1064 <        checkCompletedWithWrappedCFException(g, ex2);
1064 >        checkCompletedWithWrappedException(g, ex1);
1065 >        checkCompletedExceptionally(f, ex1);
1066          assertEquals(1, a.get());
1067      }}
1068  
# Line 782 | Line 1077 | public class CompletableFutureTest exten
1077      {
1078          final CompletableFuture<Integer> f = new CompletableFuture<>();
1079          final AtomicInteger a = new AtomicInteger(0);
1080 <        if (!createIncomplete) f.complete(v1);
1080 >        if (!createIncomplete) assertTrue(f.complete(v1));
1081          final CompletableFuture<Integer> g = m.handle
1082              (f,
1083               (Integer x, Throwable t) -> {
1084 +                m.checkExecutionMode();
1085                  threadAssertSame(x, v1);
1086                  threadAssertNull(t);
1087                  a.getAndIncrement();
1088                  return inc(v1);
1089              });
1090 <        if (createIncomplete) f.complete(v1);
1090 >        if (createIncomplete) assertTrue(f.complete(v1));
1091  
1092          checkCompletedNormally(g, inc(v1));
1093          checkCompletedNormally(f, v1);
# Line 814 | Line 1110 | public class CompletableFutureTest exten
1110          final CompletableFuture<Integer> g = m.handle
1111              (f,
1112               (Integer x, Throwable t) -> {
1113 +                m.checkExecutionMode();
1114                  threadAssertNull(x);
1115                  threadAssertSame(t, ex);
1116                  a.getAndIncrement();
# Line 822 | Line 1119 | public class CompletableFutureTest exten
1119          if (createIncomplete) f.completeExceptionally(ex);
1120  
1121          checkCompletedNormally(g, v1);
1122 <        checkCompletedWithWrappedCFException(f, ex);
1122 >        checkCompletedExceptionally(f, ex);
1123          assertEquals(1, a.get());
1124      }}
1125  
# Line 842 | Line 1139 | public class CompletableFutureTest exten
1139          final CompletableFuture<Integer> g = m.handle
1140              (f,
1141               (Integer x, Throwable t) -> {
1142 +                m.checkExecutionMode();
1143                  threadAssertNull(x);
1144                  threadAssertTrue(t instanceof CancellationException);
1145                  a.getAndIncrement();
# Line 869 | Line 1167 | public class CompletableFutureTest exten
1167          final CompletableFuture<Integer> g = m.handle
1168              (f,
1169               (Integer x, Throwable t) -> {
1170 +                m.checkExecutionMode();
1171                  threadAssertNull(x);
1172                  threadAssertSame(ex1, t);
1173                  a.getAndIncrement();
# Line 876 | Line 1175 | public class CompletableFutureTest exten
1175              });
1176          if (createIncomplete) f.completeExceptionally(ex1);
1177  
1178 <        checkCompletedWithWrappedCFException(g, ex2);
1179 <        checkCompletedWithWrappedCFException(f, ex1);
1178 >        checkCompletedWithWrappedException(g, ex2);
1179 >        checkCompletedExceptionally(f, ex1);
1180          assertEquals(1, a.get());
1181      }}
1182  
# Line 889 | Line 1188 | public class CompletableFutureTest exten
1188          final CompletableFuture<Integer> f = new CompletableFuture<>();
1189          final AtomicInteger a = new AtomicInteger(0);
1190          final CFException ex = new CFException();
1191 <        if (!createIncomplete) f.complete(v1);
1191 >        if (!createIncomplete) assertTrue(f.complete(v1));
1192          final CompletableFuture<Integer> g = m.handle
1193              (f,
1194               (Integer x, Throwable t) -> {
1195 +                m.checkExecutionMode();
1196                  threadAssertSame(x, v1);
1197                  threadAssertNull(t);
1198                  a.getAndIncrement();
1199                  throw ex;
1200              });
1201 <        if (createIncomplete) f.complete(v1);
1201 >        if (createIncomplete) assertTrue(f.complete(v1));
1202  
1203 <        checkCompletedWithWrappedCFException(g, ex);
1203 >        checkCompletedWithWrappedException(g, ex);
1204          checkCompletedNormally(f, v1);
1205          assertEquals(1, a.get());
1206      }}
# Line 908 | Line 1208 | public class CompletableFutureTest exten
1208      /**
1209       * runAsync completes after running Runnable
1210       */
1211 <    public void testRunAsync() {
1212 <        Noop r = new Noop();
1213 <        CompletableFuture<Void> f = CompletableFuture.runAsync(r);
1214 <        assertNull(f.join());
1215 <        assertEquals(1, r.invocationCount);
1216 <        checkCompletedNormally(f, null);
1217 <    }
1218 <
1219 <    /**
920 <     * runAsync with executor completes after running Runnable
921 <     */
922 <    public void testRunAsync2() {
923 <        Noop r = new Noop();
924 <        ThreadExecutor exec = new ThreadExecutor();
925 <        CompletableFuture<Void> f = CompletableFuture.runAsync(r, exec);
1211 >    public void testRunAsync_normalCompletion() {
1212 >        ExecutionMode[] executionModes = {
1213 >            ExecutionMode.ASYNC,
1214 >            ExecutionMode.EXECUTOR,
1215 >        };
1216 >        for (ExecutionMode m : executionModes)
1217 >    {
1218 >        final Noop r = new Noop(m);
1219 >        final CompletableFuture<Void> f = m.runAsync(r);
1220          assertNull(f.join());
927        assertEquals(1, r.invocationCount);
1221          checkCompletedNormally(f, null);
1222 <        assertEquals(1, exec.count.get());
1223 <    }
1222 >        r.assertInvoked();
1223 >    }}
1224  
1225      /**
1226       * failing runAsync completes exceptionally after running Runnable
1227       */
1228 <    public void testRunAsync3() {
1229 <        FailingRunnable r = new FailingRunnable();
1230 <        CompletableFuture<Void> f = CompletableFuture.runAsync(r);
1228 >    public void testRunAsync_exceptionalCompletion() {
1229 >        ExecutionMode[] executionModes = {
1230 >            ExecutionMode.ASYNC,
1231 >            ExecutionMode.EXECUTOR,
1232 >        };
1233 >        for (ExecutionMode m : executionModes)
1234 >    {
1235 >        final FailingRunnable r = new FailingRunnable(m);
1236 >        final CompletableFuture<Void> f = m.runAsync(r);
1237          checkCompletedWithWrappedCFException(f);
1238 <        assertEquals(1, r.invocationCount);
1239 <    }
1238 >        r.assertInvoked();
1239 >    }}
1240  
1241      /**
1242       * supplyAsync completes with result of supplier
1243       */
1244 <    public void testSupplyAsync() {
1245 <        CompletableFuture<Integer> f;
1246 <        f = CompletableFuture.supplyAsync(supplyOne);
1247 <        assertEquals(f.join(), one);
1248 <        checkCompletedNormally(f, one);
1249 <    }
1250 <
1251 <    /**
1252 <     * supplyAsync with executor completes with result of supplier
1253 <     */
1254 <    public void testSupplyAsync2() {
1255 <        CompletableFuture<Integer> f;
1256 <        f = CompletableFuture.supplyAsync(supplyOne, new ThreadExecutor());
1257 <        assertEquals(f.join(), one);
959 <        checkCompletedNormally(f, one);
960 <    }
1244 >    public void testSupplyAsync_normalCompletion() {
1245 >        ExecutionMode[] executionModes = {
1246 >            ExecutionMode.ASYNC,
1247 >            ExecutionMode.EXECUTOR,
1248 >        };
1249 >        for (ExecutionMode m : executionModes)
1250 >        for (Integer v1 : new Integer[] { 1, null })
1251 >    {
1252 >        final IntegerSupplier r = new IntegerSupplier(m, v1);
1253 >        final CompletableFuture<Integer> f = m.supplyAsync(r);
1254 >        assertSame(v1, f.join());
1255 >        checkCompletedNormally(f, v1);
1256 >        r.assertInvoked();
1257 >    }}
1258  
1259      /**
1260       * Failing supplyAsync completes exceptionally
1261       */
1262 <    public void testSupplyAsync3() {
1263 <        FailingSupplier r = new FailingSupplier();
1264 <        CompletableFuture<Integer> f = CompletableFuture.supplyAsync(r);
1262 >    public void testSupplyAsync_exceptionalCompletion() {
1263 >        ExecutionMode[] executionModes = {
1264 >            ExecutionMode.ASYNC,
1265 >            ExecutionMode.EXECUTOR,
1266 >        };
1267 >        for (ExecutionMode m : executionModes)
1268 >    {
1269 >        FailingSupplier r = new FailingSupplier(m);
1270 >        CompletableFuture<Integer> f = m.supplyAsync(r);
1271          checkCompletedWithWrappedCFException(f);
1272 <        assertEquals(1, r.invocationCount);
1273 <    }
1272 >        r.assertInvoked();
1273 >    }}
1274  
1275      // seq completion methods
1276  
# Line 976 | Line 1279 | public class CompletableFutureTest exten
1279       */
1280      public void testThenRun_normalCompletion() {
1281          for (ExecutionMode m : ExecutionMode.values())
979        for (boolean createIncomplete : new boolean[] { true, false })
1282          for (Integer v1 : new Integer[] { 1, null })
1283      {
1284          final CompletableFuture<Integer> f = new CompletableFuture<>();
1285 <        final Noop r = new Noop();
1286 <        if (!createIncomplete) f.complete(v1);
985 <        final CompletableFuture<Void> g = m.thenRun(f, r);
986 <        if (createIncomplete) {
987 <            checkIncomplete(g);
988 <            f.complete(v1);
989 <        }
1285 >        final Noop[] rs = new Noop[6];
1286 >        for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1287  
1288 <        checkCompletedNormally(g, null);
1288 >        final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1289 >        final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1290 >        final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1291 >        checkIncomplete(h0);
1292 >        checkIncomplete(h1);
1293 >        checkIncomplete(h2);
1294 >        assertTrue(f.complete(v1));
1295 >        final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1296 >        final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1297 >        final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1298 >
1299 >        checkCompletedNormally(h0, null);
1300 >        checkCompletedNormally(h1, null);
1301 >        checkCompletedNormally(h2, null);
1302 >        checkCompletedNormally(h3, null);
1303 >        checkCompletedNormally(h4, null);
1304 >        checkCompletedNormally(h5, null);
1305          checkCompletedNormally(f, v1);
1306 <        assertEquals(1, r.invocationCount);
1306 >        for (Noop r : rs) r.assertInvoked();
1307      }}
1308  
1309      /**
# Line 999 | Line 1312 | public class CompletableFutureTest exten
1312       */
1313      public void testThenRun_exceptionalCompletion() {
1314          for (ExecutionMode m : ExecutionMode.values())
1002        for (boolean createIncomplete : new boolean[] { true, false })
1315      {
1316          final CFException ex = new CFException();
1317          final CompletableFuture<Integer> f = new CompletableFuture<>();
1318 <        final Noop r = new Noop();
1319 <        if (!createIncomplete) f.completeExceptionally(ex);
1008 <        final CompletableFuture<Void> g = m.thenRun(f, r);
1009 <        if (createIncomplete) {
1010 <            checkIncomplete(g);
1011 <            f.completeExceptionally(ex);
1012 <        }
1318 >        final Noop[] rs = new Noop[6];
1319 >        for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1320  
1321 <        checkCompletedWithWrappedCFException(g, ex);
1322 <        checkCompletedWithWrappedCFException(f, ex);
1323 <        assertEquals(0, r.invocationCount);
1321 >        final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1322 >        final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1323 >        final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1324 >        checkIncomplete(h0);
1325 >        checkIncomplete(h1);
1326 >        checkIncomplete(h2);
1327 >        assertTrue(f.completeExceptionally(ex));
1328 >        final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1329 >        final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1330 >        final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1331 >
1332 >        checkCompletedWithWrappedException(h0, ex);
1333 >        checkCompletedWithWrappedException(h1, ex);
1334 >        checkCompletedWithWrappedException(h2, ex);
1335 >        checkCompletedWithWrappedException(h3, ex);
1336 >        checkCompletedWithWrappedException(h4, ex);
1337 >        checkCompletedWithWrappedException(h5, ex);
1338 >        checkCompletedExceptionally(f, ex);
1339 >        for (Noop r : rs) r.assertNotInvoked();
1340      }}
1341  
1342      /**
# Line 1021 | Line 1344 | public class CompletableFutureTest exten
1344       */
1345      public void testThenRun_sourceCancelled() {
1346          for (ExecutionMode m : ExecutionMode.values())
1024        for (boolean createIncomplete : new boolean[] { true, false })
1347          for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1348      {
1349          final CompletableFuture<Integer> f = new CompletableFuture<>();
1350 <        final Noop r = new Noop();
1351 <        if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1030 <        final CompletableFuture<Void> g = f.thenRun(r);
1031 <        if (createIncomplete) {
1032 <            checkIncomplete(g);
1033 <            assertTrue(f.cancel(mayInterruptIfRunning));
1034 <        }
1350 >        final Noop[] rs = new Noop[6];
1351 >        for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1352  
1353 <        checkCompletedWithWrappedCancellationException(g);
1353 >        final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1354 >        final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1355 >        final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1356 >        checkIncomplete(h0);
1357 >        checkIncomplete(h1);
1358 >        checkIncomplete(h2);
1359 >        assertTrue(f.cancel(mayInterruptIfRunning));
1360 >        final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1361 >        final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1362 >        final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1363 >
1364 >        checkCompletedWithWrappedCancellationException(h0);
1365 >        checkCompletedWithWrappedCancellationException(h1);
1366 >        checkCompletedWithWrappedCancellationException(h2);
1367 >        checkCompletedWithWrappedCancellationException(h3);
1368 >        checkCompletedWithWrappedCancellationException(h4);
1369 >        checkCompletedWithWrappedCancellationException(h5);
1370          checkCancelled(f);
1371 <        assertEquals(0, r.invocationCount);
1371 >        for (Noop r : rs) r.assertNotInvoked();
1372      }}
1373  
1374      /**
# Line 1043 | Line 1376 | public class CompletableFutureTest exten
1376       */
1377      public void testThenRun_actionFailed() {
1378          for (ExecutionMode m : ExecutionMode.values())
1046        for (boolean createIncomplete : new boolean[] { true, false })
1379          for (Integer v1 : new Integer[] { 1, null })
1380      {
1381          final CompletableFuture<Integer> f = new CompletableFuture<>();
1382 <        final FailingRunnable r = new FailingRunnable();
1383 <        if (!createIncomplete) f.complete(v1);
1052 <        final CompletableFuture<Void> g = f.thenRun(r);
1053 <        if (createIncomplete) {
1054 <            checkIncomplete(g);
1055 <            f.complete(v1);
1056 <        }
1382 >        final FailingRunnable[] rs = new FailingRunnable[6];
1383 >        for (int i = 0; i < rs.length; i++) rs[i] = new FailingRunnable(m);
1384  
1385 <        checkCompletedWithWrappedCFException(g);
1385 >        final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1386 >        final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1387 >        final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1388 >        assertTrue(f.complete(v1));
1389 >        final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1390 >        final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1391 >        final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1392 >
1393 >        checkCompletedWithWrappedCFException(h0);
1394 >        checkCompletedWithWrappedCFException(h1);
1395 >        checkCompletedWithWrappedCFException(h2);
1396 >        checkCompletedWithWrappedCFException(h3);
1397 >        checkCompletedWithWrappedCFException(h4);
1398 >        checkCompletedWithWrappedCFException(h5);
1399          checkCompletedNormally(f, v1);
1400      }}
1401  
# Line 1064 | Line 1404 | public class CompletableFutureTest exten
1404       */
1405      public void testThenApply_normalCompletion() {
1406          for (ExecutionMode m : ExecutionMode.values())
1067        for (boolean createIncomplete : new boolean[] { true, false })
1407          for (Integer v1 : new Integer[] { 1, null })
1408      {
1409          final CompletableFuture<Integer> f = new CompletableFuture<>();
1410 <        final IncFunction r = new IncFunction();
1411 <        if (!createIncomplete) f.complete(v1);
1073 <        final CompletableFuture<Integer> g = m.thenApply(f, r);
1074 <        if (createIncomplete) {
1075 <            checkIncomplete(g);
1076 <            f.complete(v1);
1077 <        }
1410 >        final IncFunction[] rs = new IncFunction[4];
1411 >        for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1412  
1413 <        checkCompletedNormally(g, inc(v1));
1413 >        final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1414 >        final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1415 >        checkIncomplete(h0);
1416 >        checkIncomplete(h1);
1417 >        assertTrue(f.complete(v1));
1418 >        final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1419 >        final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1420 >
1421 >        checkCompletedNormally(h0, inc(v1));
1422 >        checkCompletedNormally(h1, inc(v1));
1423 >        checkCompletedNormally(h2, inc(v1));
1424 >        checkCompletedNormally(h3, inc(v1));
1425          checkCompletedNormally(f, v1);
1426 <        assertEquals(1, r.invocationCount);
1426 >        for (IncFunction r : rs) r.assertValue(inc(v1));
1427      }}
1428  
1429      /**
# Line 1087 | Line 1432 | public class CompletableFutureTest exten
1432       */
1433      public void testThenApply_exceptionalCompletion() {
1434          for (ExecutionMode m : ExecutionMode.values())
1090        for (boolean createIncomplete : new boolean[] { true, false })
1435      {
1436          final CFException ex = new CFException();
1437          final CompletableFuture<Integer> f = new CompletableFuture<>();
1438 <        final IncFunction r = new IncFunction();
1439 <        if (!createIncomplete) f.completeExceptionally(ex);
1096 <        final CompletableFuture<Integer> g = m.thenApply(f, r);
1097 <        if (createIncomplete) {
1098 <            checkIncomplete(g);
1099 <            f.completeExceptionally(ex);
1100 <        }
1438 >        final IncFunction[] rs = new IncFunction[4];
1439 >        for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1440  
1441 <        checkCompletedWithWrappedCFException(g, ex);
1442 <        checkCompletedWithWrappedCFException(f, ex);
1443 <        assertEquals(0, r.invocationCount);
1441 >        final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1442 >        final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1443 >        assertTrue(f.completeExceptionally(ex));
1444 >        final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1445 >        final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1446 >
1447 >        checkCompletedWithWrappedException(h0, ex);
1448 >        checkCompletedWithWrappedException(h1, ex);
1449 >        checkCompletedWithWrappedException(h2, ex);
1450 >        checkCompletedWithWrappedException(h3, ex);
1451 >        checkCompletedExceptionally(f, ex);
1452 >        for (IncFunction r : rs) r.assertNotInvoked();
1453      }}
1454  
1455      /**
# Line 1109 | Line 1457 | public class CompletableFutureTest exten
1457       */
1458      public void testThenApply_sourceCancelled() {
1459          for (ExecutionMode m : ExecutionMode.values())
1112        for (boolean createIncomplete : new boolean[] { true, false })
1460          for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1461      {
1462          final CompletableFuture<Integer> f = new CompletableFuture<>();
1463 <        final IncFunction r = new IncFunction();
1464 <        if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1118 <        final CompletableFuture<Integer> g = f.thenApply(r);
1119 <        if (createIncomplete) {
1120 <            checkIncomplete(g);
1121 <            assertTrue(f.cancel(mayInterruptIfRunning));
1122 <        }
1463 >        final IncFunction[] rs = new IncFunction[4];
1464 >        for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1465  
1466 <        checkCompletedWithWrappedCancellationException(g);
1466 >        final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1467 >        final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1468 >        assertTrue(f.cancel(mayInterruptIfRunning));
1469 >        final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1470 >        final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1471 >
1472 >        checkCompletedWithWrappedCancellationException(h0);
1473 >        checkCompletedWithWrappedCancellationException(h1);
1474 >        checkCompletedWithWrappedCancellationException(h2);
1475 >        checkCompletedWithWrappedCancellationException(h3);
1476          checkCancelled(f);
1477 <        assertEquals(0, r.invocationCount);
1477 >        for (IncFunction r : rs) r.assertNotInvoked();
1478      }}
1479  
1480      /**
# Line 1131 | Line 1482 | public class CompletableFutureTest exten
1482       */
1483      public void testThenApply_actionFailed() {
1484          for (ExecutionMode m : ExecutionMode.values())
1134        for (boolean createIncomplete : new boolean[] { true, false })
1485          for (Integer v1 : new Integer[] { 1, null })
1486      {
1487          final CompletableFuture<Integer> f = new CompletableFuture<>();
1488 <        final FailingFunction r = new FailingFunction();
1489 <        if (!createIncomplete) f.complete(v1);
1140 <        final CompletableFuture<Integer> g = f.thenApply(r);
1141 <        if (createIncomplete) {
1142 <            checkIncomplete(g);
1143 <            f.complete(v1);
1144 <        }
1488 >        final FailingFunction[] rs = new FailingFunction[4];
1489 >        for (int i = 0; i < rs.length; i++) rs[i] = new FailingFunction(m);
1490  
1491 <        checkCompletedWithWrappedCFException(g);
1491 >        final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1492 >        final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1493 >        assertTrue(f.complete(v1));
1494 >        final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1495 >        final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1496 >
1497 >        checkCompletedWithWrappedCFException(h0);
1498 >        checkCompletedWithWrappedCFException(h1);
1499 >        checkCompletedWithWrappedCFException(h2);
1500 >        checkCompletedWithWrappedCFException(h3);
1501          checkCompletedNormally(f, v1);
1502      }}
1503  
# Line 1152 | Line 1506 | public class CompletableFutureTest exten
1506       */
1507      public void testThenAccept_normalCompletion() {
1508          for (ExecutionMode m : ExecutionMode.values())
1155        for (boolean createIncomplete : new boolean[] { true, false })
1509          for (Integer v1 : new Integer[] { 1, null })
1510      {
1511          final CompletableFuture<Integer> f = new CompletableFuture<>();
1512 <        final IncAction r = new IncAction();
1513 <        if (!createIncomplete) f.complete(v1);
1161 <        final CompletableFuture<Void> g = m.thenAccept(f, r);
1162 <        if (createIncomplete) {
1163 <            checkIncomplete(g);
1164 <            f.complete(v1);
1165 <        }
1512 >        final NoopConsumer[] rs = new NoopConsumer[4];
1513 >        for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1514  
1515 <        checkCompletedNormally(g, null);
1515 >        final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1516 >        final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1517 >        checkIncomplete(h0);
1518 >        checkIncomplete(h1);
1519 >        assertTrue(f.complete(v1));
1520 >        final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1521 >        final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1522 >
1523 >        checkCompletedNormally(h0, null);
1524 >        checkCompletedNormally(h1, null);
1525 >        checkCompletedNormally(h2, null);
1526 >        checkCompletedNormally(h3, null);
1527          checkCompletedNormally(f, v1);
1528 <        assertEquals(1, r.invocationCount);
1170 <        assertEquals(inc(v1), r.value);
1528 >        for (NoopConsumer r : rs) r.assertValue(v1);
1529      }}
1530  
1531      /**
# Line 1176 | Line 1534 | public class CompletableFutureTest exten
1534       */
1535      public void testThenAccept_exceptionalCompletion() {
1536          for (ExecutionMode m : ExecutionMode.values())
1179        for (boolean createIncomplete : new boolean[] { true, false })
1537      {
1538          final CFException ex = new CFException();
1539          final CompletableFuture<Integer> f = new CompletableFuture<>();
1540 <        final IncAction r = new IncAction();
1541 <        if (!createIncomplete) f.completeExceptionally(ex);
1185 <        final CompletableFuture<Void> g = m.thenAccept(f, r);
1186 <        if (createIncomplete) {
1187 <            checkIncomplete(g);
1188 <            f.completeExceptionally(ex);
1189 <        }
1540 >        final NoopConsumer[] rs = new NoopConsumer[4];
1541 >        for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1542  
1543 <        checkCompletedWithWrappedCFException(g, ex);
1544 <        checkCompletedWithWrappedCFException(f, ex);
1545 <        assertEquals(0, r.invocationCount);
1543 >        final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1544 >        final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1545 >        assertTrue(f.completeExceptionally(ex));
1546 >        final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1547 >        final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1548 >
1549 >        checkCompletedWithWrappedException(h0, ex);
1550 >        checkCompletedWithWrappedException(h1, ex);
1551 >        checkCompletedWithWrappedException(h2, ex);
1552 >        checkCompletedWithWrappedException(h3, ex);
1553 >        checkCompletedExceptionally(f, ex);
1554 >        for (NoopConsumer r : rs) r.assertNotInvoked();
1555      }}
1556  
1557      /**
1558 <     * thenAccept result completes exceptionally if action does
1558 >     * thenAccept result completes exceptionally if source cancelled
1559       */
1560 <    public void testThenAccept_actionFailed() {
1560 >    public void testThenAccept_sourceCancelled() {
1561          for (ExecutionMode m : ExecutionMode.values())
1562 <        for (boolean createIncomplete : new boolean[] { true, false })
1202 <        for (Integer v1 : new Integer[] { 1, null })
1562 >        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1563      {
1564          final CompletableFuture<Integer> f = new CompletableFuture<>();
1565 <        final FailingConsumer r = new FailingConsumer();
1566 <        if (!createIncomplete) f.complete(v1);
1207 <        final CompletableFuture<Void> g = f.thenAccept(r);
1208 <        if (createIncomplete) {
1209 <            checkIncomplete(g);
1210 <            f.complete(v1);
1211 <        }
1565 >        final NoopConsumer[] rs = new NoopConsumer[4];
1566 >        for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1567  
1568 <        checkCompletedWithWrappedCFException(g);
1569 <        checkCompletedNormally(f, v1);
1568 >        final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1569 >        final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1570 >        assertTrue(f.cancel(mayInterruptIfRunning));
1571 >        final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1572 >        final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1573 >
1574 >        checkCompletedWithWrappedCancellationException(h0);
1575 >        checkCompletedWithWrappedCancellationException(h1);
1576 >        checkCompletedWithWrappedCancellationException(h2);
1577 >        checkCompletedWithWrappedCancellationException(h3);
1578 >        checkCancelled(f);
1579 >        for (NoopConsumer r : rs) r.assertNotInvoked();
1580      }}
1581  
1582      /**
1583 <     * thenAccept result completes exceptionally if source cancelled
1583 >     * thenAccept result completes exceptionally if action does
1584       */
1585 <    public void testThenAccept_sourceCancelled() {
1585 >    public void testThenAccept_actionFailed() {
1586          for (ExecutionMode m : ExecutionMode.values())
1587 <        for (boolean createIncomplete : new boolean[] { true, false })
1223 <        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1587 >        for (Integer v1 : new Integer[] { 1, null })
1588      {
1589          final CompletableFuture<Integer> f = new CompletableFuture<>();
1590 <        final IncAction r = new IncAction();
1591 <        if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1228 <        final CompletableFuture<Void> g = f.thenAccept(r);
1229 <        if (createIncomplete) {
1230 <            checkIncomplete(g);
1231 <            assertTrue(f.cancel(mayInterruptIfRunning));
1232 <        }
1590 >        final FailingConsumer[] rs = new FailingConsumer[4];
1591 >        for (int i = 0; i < rs.length; i++) rs[i] = new FailingConsumer(m);
1592  
1593 <        checkCompletedWithWrappedCancellationException(g);
1594 <        checkCancelled(f);
1595 <        assertEquals(0, r.invocationCount);
1593 >        final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1594 >        final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1595 >        assertTrue(f.complete(v1));
1596 >        final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1597 >        final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1598 >
1599 >        checkCompletedWithWrappedCFException(h0);
1600 >        checkCompletedWithWrappedCFException(h1);
1601 >        checkCompletedWithWrappedCFException(h2);
1602 >        checkCompletedWithWrappedCFException(h3);
1603 >        checkCompletedNormally(f, v1);
1604      }}
1605  
1606      /**
# Line 1242 | Line 1609 | public class CompletableFutureTest exten
1609       */
1610      public void testThenCombine_normalCompletion() {
1611          for (ExecutionMode m : ExecutionMode.values())
1245        for (boolean createIncomplete : new boolean[] { true, false })
1612          for (boolean fFirst : new boolean[] { true, false })
1613          for (Integer v1 : new Integer[] { 1, null })
1614          for (Integer v2 : new Integer[] { 2, null })
1615      {
1616          final CompletableFuture<Integer> f = new CompletableFuture<>();
1617          final CompletableFuture<Integer> g = new CompletableFuture<>();
1618 <        final SubtractFunction r = new SubtractFunction();
1618 >        final SubtractFunction[] rs = new SubtractFunction[6];
1619 >        for (int i = 0; i < rs.length; i++) rs[i] = new SubtractFunction(m);
1620  
1621 <        if (fFirst) f.complete(v1); else g.complete(v2);
1622 <        if (!createIncomplete)
1623 <            if (!fFirst) f.complete(v1); else g.complete(v2);
1624 <        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1625 <        if (createIncomplete) {
1626 <            checkIncomplete(h);
1627 <            assertEquals(0, r.invocationCount);
1628 <            if (!fFirst) f.complete(v1); else g.complete(v2);
1629 <        }
1621 >        final CompletableFuture<Integer> fst =  fFirst ? f : g;
1622 >        final CompletableFuture<Integer> snd = !fFirst ? f : g;
1623 >        final Integer w1 =  fFirst ? v1 : v2;
1624 >        final Integer w2 = !fFirst ? v1 : v2;
1625 >
1626 >        final CompletableFuture<Integer> h0 = m.thenCombine(f, g, rs[0]);
1627 >        final CompletableFuture<Integer> h1 = m.thenCombine(fst, fst, rs[1]);
1628 >        assertTrue(fst.complete(w1));
1629 >        final CompletableFuture<Integer> h2 = m.thenCombine(f, g, rs[2]);
1630 >        final CompletableFuture<Integer> h3 = m.thenCombine(fst, fst, rs[3]);
1631 >        checkIncomplete(h0); rs[0].assertNotInvoked();
1632 >        checkIncomplete(h2); rs[2].assertNotInvoked();
1633 >        checkCompletedNormally(h1, subtract(w1, w1));
1634 >        checkCompletedNormally(h3, subtract(w1, w1));
1635 >        rs[1].assertValue(subtract(w1, w1));
1636 >        rs[3].assertValue(subtract(w1, w1));
1637 >        assertTrue(snd.complete(w2));
1638 >        final CompletableFuture<Integer> h4 = m.thenCombine(f, g, rs[4]);
1639 >
1640 >        checkCompletedNormally(h0, subtract(v1, v2));
1641 >        checkCompletedNormally(h2, subtract(v1, v2));
1642 >        checkCompletedNormally(h4, subtract(v1, v2));
1643 >        rs[0].assertValue(subtract(v1, v2));
1644 >        rs[2].assertValue(subtract(v1, v2));
1645 >        rs[4].assertValue(subtract(v1, v2));
1646  
1264        checkCompletedNormally(h, subtract(v1, v2));
1647          checkCompletedNormally(f, v1);
1648          checkCompletedNormally(g, v2);
1267        assertEquals(1, r.invocationCount);
1649      }}
1650  
1651      /**
1652       * thenCombine result completes exceptionally after exceptional
1653       * completion of either source
1654       */
1655 <    public void testThenCombine_exceptionalCompletion1() {
1275 <        for (ExecutionMode m : ExecutionMode.values())
1276 <        for (Integer v1 : new Integer[] { 1, null })
1277 <    {
1278 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
1279 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
1280 <        final SubtractFunction r = new SubtractFunction();
1281 <        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1282 <        final CFException ex = new CFException();
1283 <
1284 <        f.completeExceptionally(ex);
1285 <        checkIncomplete(h);
1286 <        g.complete(v1);
1287 <
1288 <        checkCompletedWithWrappedCFException(h, ex);
1289 <        checkCompletedWithWrappedCFException(f, ex);
1290 <        assertEquals(0, r.invocationCount);
1291 <        checkCompletedNormally(g, v1);
1292 <    }}
1293 <
1294 <    public void testThenCombine_exceptionalCompletion2() {
1295 <        for (ExecutionMode m : ExecutionMode.values())
1296 <        for (Integer v1 : new Integer[] { 1, null })
1297 <    {
1298 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
1299 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
1300 <        final SubtractFunction r = new SubtractFunction();
1301 <        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1302 <        final CFException ex = new CFException();
1303 <
1304 <        g.completeExceptionally(ex);
1305 <        checkIncomplete(h);
1306 <        f.complete(v1);
1307 <
1308 <        checkCompletedWithWrappedCFException(h, ex);
1309 <        checkCompletedWithWrappedCFException(g, ex);
1310 <        assertEquals(0, r.invocationCount);
1311 <        checkCompletedNormally(f, v1);
1312 <    }}
1313 <
1314 <    public void testThenCombine_exceptionalCompletion3() {
1655 >    public void testThenCombine_exceptionalCompletion() throws Throwable {
1656          for (ExecutionMode m : ExecutionMode.values())
1657 +        for (boolean fFirst : new boolean[] { true, false })
1658 +        for (boolean failFirst : new boolean[] { true, false })
1659          for (Integer v1 : new Integer[] { 1, null })
1660      {
1661          final CompletableFuture<Integer> f = new CompletableFuture<>();
1662          final CompletableFuture<Integer> g = new CompletableFuture<>();
1320        final SubtractFunction r = new SubtractFunction();
1663          final CFException ex = new CFException();
1664 <
1665 <        g.completeExceptionally(ex);
1666 <        f.complete(v1);
1667 <        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1668 <
1669 <        checkCompletedWithWrappedCFException(h, ex);
1670 <        checkCompletedWithWrappedCFException(g, ex);
1671 <        assertEquals(0, r.invocationCount);
1672 <        checkCompletedNormally(f, v1);
1664 >        final SubtractFunction r1 = new SubtractFunction(m);
1665 >        final SubtractFunction r2 = new SubtractFunction(m);
1666 >        final SubtractFunction r3 = new SubtractFunction(m);
1667 >
1668 >        final CompletableFuture<Integer> fst =  fFirst ? f : g;
1669 >        final CompletableFuture<Integer> snd = !fFirst ? f : g;
1670 >        final Callable<Boolean> complete1 = failFirst ?
1671 >            () -> fst.completeExceptionally(ex) :
1672 >            () -> fst.complete(v1);
1673 >        final Callable<Boolean> complete2 = failFirst ?
1674 >            () -> snd.complete(v1) :
1675 >            () -> snd.completeExceptionally(ex);
1676 >
1677 >        final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1678 >        assertTrue(complete1.call());
1679 >        final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1680 >        checkIncomplete(h1);
1681 >        checkIncomplete(h2);
1682 >        assertTrue(complete2.call());
1683 >        final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1684 >
1685 >        checkCompletedWithWrappedException(h1, ex);
1686 >        checkCompletedWithWrappedException(h2, ex);
1687 >        checkCompletedWithWrappedException(h3, ex);
1688 >        r1.assertNotInvoked();
1689 >        r2.assertNotInvoked();
1690 >        r3.assertNotInvoked();
1691 >        checkCompletedNormally(failFirst ? snd : fst, v1);
1692 >        checkCompletedExceptionally(failFirst ? fst : snd, ex);
1693      }}
1694  
1695 <    public void testThenCombine_exceptionalCompletion4() {
1695 >    /**
1696 >     * thenCombine result completes exceptionally if either source cancelled
1697 >     */
1698 >    public void testThenCombine_sourceCancelled() throws Throwable {
1699          for (ExecutionMode m : ExecutionMode.values())
1700 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1701 +        for (boolean fFirst : new boolean[] { true, false })
1702 +        for (boolean failFirst : new boolean[] { true, false })
1703          for (Integer v1 : new Integer[] { 1, null })
1704      {
1705          final CompletableFuture<Integer> f = new CompletableFuture<>();
1706          final CompletableFuture<Integer> g = new CompletableFuture<>();
1707 <        final SubtractFunction r = new SubtractFunction();
1708 <        final CFException ex = new CFException();
1709 <
1710 <        f.completeExceptionally(ex);
1711 <        g.complete(v1);
1712 <        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1713 <
1714 <        checkCompletedWithWrappedCFException(h, ex);
1715 <        checkCompletedWithWrappedCFException(f, ex);
1716 <        assertEquals(0, r.invocationCount);
1717 <        checkCompletedNormally(g, v1);
1707 >        final SubtractFunction r1 = new SubtractFunction(m);
1708 >        final SubtractFunction r2 = new SubtractFunction(m);
1709 >        final SubtractFunction r3 = new SubtractFunction(m);
1710 >
1711 >        final CompletableFuture<Integer> fst =  fFirst ? f : g;
1712 >        final CompletableFuture<Integer> snd = !fFirst ? f : g;
1713 >        final Callable<Boolean> complete1 = failFirst ?
1714 >            () -> fst.cancel(mayInterruptIfRunning) :
1715 >            () -> fst.complete(v1);
1716 >        final Callable<Boolean> complete2 = failFirst ?
1717 >            () -> snd.complete(v1) :
1718 >            () -> snd.cancel(mayInterruptIfRunning);
1719 >
1720 >        final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1721 >        assertTrue(complete1.call());
1722 >        final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1723 >        checkIncomplete(h1);
1724 >        checkIncomplete(h2);
1725 >        assertTrue(complete2.call());
1726 >        final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1727 >
1728 >        checkCompletedWithWrappedCancellationException(h1);
1729 >        checkCompletedWithWrappedCancellationException(h2);
1730 >        checkCompletedWithWrappedCancellationException(h3);
1731 >        r1.assertNotInvoked();
1732 >        r2.assertNotInvoked();
1733 >        r3.assertNotInvoked();
1734 >        checkCompletedNormally(failFirst ? snd : fst, v1);
1735 >        checkCancelled(failFirst ? fst : snd);
1736      }}
1737  
1738      /**
1739       * thenCombine result completes exceptionally if action does
1740       */
1741 <    public void testThenCombine_actionFailed1() {
1356 <        for (ExecutionMode m : ExecutionMode.values())
1357 <        for (Integer v1 : new Integer[] { 1, null })
1358 <        for (Integer v2 : new Integer[] { 2, null })
1359 <    {
1360 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
1361 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
1362 <        final FailingBiFunction r = new FailingBiFunction();
1363 <        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1364 <
1365 <        f.complete(v1);
1366 <        checkIncomplete(h);
1367 <        g.complete(v2);
1368 <
1369 <        checkCompletedWithWrappedCFException(h);
1370 <        checkCompletedNormally(f, v1);
1371 <        checkCompletedNormally(g, v2);
1372 <    }}
1373 <
1374 <    public void testThenCombine_actionFailed2() {
1741 >    public void testThenCombine_actionFailed() {
1742          for (ExecutionMode m : ExecutionMode.values())
1743 +        for (boolean fFirst : new boolean[] { true, false })
1744          for (Integer v1 : new Integer[] { 1, null })
1745          for (Integer v2 : new Integer[] { 2, null })
1746      {
1747          final CompletableFuture<Integer> f = new CompletableFuture<>();
1748          final CompletableFuture<Integer> g = new CompletableFuture<>();
1749 <        final FailingBiFunction r = new FailingBiFunction();
1750 <        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1751 <
1752 <        g.complete(v2);
1753 <        checkIncomplete(h);
1754 <        f.complete(v1);
1755 <
1756 <        checkCompletedWithWrappedCFException(h);
1749 >        final FailingBiFunction r1 = new FailingBiFunction(m);
1750 >        final FailingBiFunction r2 = new FailingBiFunction(m);
1751 >        final FailingBiFunction r3 = new FailingBiFunction(m);
1752 >
1753 >        final CompletableFuture<Integer> fst =  fFirst ? f : g;
1754 >        final CompletableFuture<Integer> snd = !fFirst ? f : g;
1755 >        final Integer w1 =  fFirst ? v1 : v2;
1756 >        final Integer w2 = !fFirst ? v1 : v2;
1757 >
1758 >        final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1759 >        assertTrue(fst.complete(w1));
1760 >        final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1761 >        assertTrue(snd.complete(w2));
1762 >        final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1763 >
1764 >        checkCompletedWithWrappedCFException(h1);
1765 >        checkCompletedWithWrappedCFException(h2);
1766 >        checkCompletedWithWrappedCFException(h3);
1767 >        r1.assertInvoked();
1768 >        r2.assertInvoked();
1769 >        r3.assertInvoked();
1770          checkCompletedNormally(f, v1);
1771          checkCompletedNormally(g, v2);
1772      }}
1773  
1774      /**
1394     * thenCombine result completes exceptionally if either source cancelled
1395     */
1396    public void testThenCombine_sourceCancelled1() {
1397        for (ExecutionMode m : ExecutionMode.values())
1398        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1399        for (Integer v1 : new Integer[] { 1, null })
1400    {
1401        final CompletableFuture<Integer> f = new CompletableFuture<>();
1402        final CompletableFuture<Integer> g = new CompletableFuture<>();
1403        final SubtractFunction r = new SubtractFunction();
1404        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1405
1406        assertTrue(f.cancel(mayInterruptIfRunning));
1407        checkIncomplete(h);
1408        g.complete(v1);
1409
1410        checkCompletedWithWrappedCancellationException(h);
1411        checkCancelled(f);
1412        assertEquals(0, r.invocationCount);
1413        checkCompletedNormally(g, v1);
1414    }}
1415
1416    public void testThenCombine_sourceCancelled2() {
1417        for (ExecutionMode m : ExecutionMode.values())
1418        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1419        for (Integer v1 : new Integer[] { 1, null })
1420    {
1421        final CompletableFuture<Integer> f = new CompletableFuture<>();
1422        final CompletableFuture<Integer> g = new CompletableFuture<>();
1423        final SubtractFunction r = new SubtractFunction();
1424        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1425
1426        assertTrue(g.cancel(mayInterruptIfRunning));
1427        checkIncomplete(h);
1428        f.complete(v1);
1429
1430        checkCompletedWithWrappedCancellationException(h);
1431        checkCancelled(g);
1432        assertEquals(0, r.invocationCount);
1433        checkCompletedNormally(f, v1);
1434    }}
1435
1436    public void testThenCombine_sourceCancelled3() {
1437        for (ExecutionMode m : ExecutionMode.values())
1438        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1439        for (Integer v1 : new Integer[] { 1, null })
1440    {
1441        final CompletableFuture<Integer> f = new CompletableFuture<>();
1442        final CompletableFuture<Integer> g = new CompletableFuture<>();
1443        final SubtractFunction r = new SubtractFunction();
1444
1445        assertTrue(g.cancel(mayInterruptIfRunning));
1446        f.complete(v1);
1447        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1448
1449        checkCompletedWithWrappedCancellationException(h);
1450        checkCancelled(g);
1451        assertEquals(0, r.invocationCount);
1452        checkCompletedNormally(f, v1);
1453    }}
1454
1455    public void testThenCombine_sourceCancelled4() {
1456        for (ExecutionMode m : ExecutionMode.values())
1457        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1458        for (Integer v1 : new Integer[] { 1, null })
1459    {
1460        final CompletableFuture<Integer> f = new CompletableFuture<>();
1461        final CompletableFuture<Integer> g = new CompletableFuture<>();
1462        final SubtractFunction r = new SubtractFunction();
1463
1464        assertTrue(f.cancel(mayInterruptIfRunning));
1465        g.complete(v1);
1466        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1467
1468        checkCompletedWithWrappedCancellationException(h);
1469        checkCancelled(f);
1470        assertEquals(0, r.invocationCount);
1471        checkCompletedNormally(g, v1);
1472    }}
1473
1474    /**
1775       * thenAcceptBoth result completes normally after normal
1776       * completion of sources
1777       */
1778 <    public void testThenAcceptBoth_normalCompletion1() {
1479 <        for (ExecutionMode m : ExecutionMode.values())
1480 <        for (Integer v1 : new Integer[] { 1, null })
1481 <        for (Integer v2 : new Integer[] { 2, null })
1482 <    {
1483 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
1484 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
1485 <        final SubtractAction r = new SubtractAction();
1486 <        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1487 <
1488 <        f.complete(v1);
1489 <        checkIncomplete(h);
1490 <        assertEquals(0, r.invocationCount);
1491 <        g.complete(v2);
1492 <
1493 <        checkCompletedNormally(h, null);
1494 <        assertEquals(subtract(v1, v2), r.value);
1495 <        checkCompletedNormally(f, v1);
1496 <        checkCompletedNormally(g, v2);
1497 <    }}
1498 <
1499 <    public void testThenAcceptBoth_normalCompletion2() {
1500 <        for (ExecutionMode m : ExecutionMode.values())
1501 <        for (Integer v1 : new Integer[] { 1, null })
1502 <        for (Integer v2 : new Integer[] { 2, null })
1503 <    {
1504 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
1505 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
1506 <        final SubtractAction r = new SubtractAction();
1507 <        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1508 <
1509 <        g.complete(v2);
1510 <        checkIncomplete(h);
1511 <        assertEquals(0, r.invocationCount);
1512 <        f.complete(v1);
1513 <
1514 <        checkCompletedNormally(h, null);
1515 <        assertEquals(subtract(v1, v2), r.value);
1516 <        checkCompletedNormally(f, v1);
1517 <        checkCompletedNormally(g, v2);
1518 <    }}
1519 <
1520 <    public void testThenAcceptBoth_normalCompletion3() {
1521 <        for (ExecutionMode m : ExecutionMode.values())
1522 <        for (Integer v1 : new Integer[] { 1, null })
1523 <        for (Integer v2 : new Integer[] { 2, null })
1524 <    {
1525 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
1526 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
1527 <        final SubtractAction r = new SubtractAction();
1528 <
1529 <        g.complete(v2);
1530 <        f.complete(v1);
1531 <        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1532 <
1533 <        checkCompletedNormally(h, null);
1534 <        assertEquals(subtract(v1, v2), r.value);
1535 <        checkCompletedNormally(f, v1);
1536 <        checkCompletedNormally(g, v2);
1537 <    }}
1538 <
1539 <    public void testThenAcceptBoth_normalCompletion4() {
1778 >    public void testThenAcceptBoth_normalCompletion() {
1779          for (ExecutionMode m : ExecutionMode.values())
1780 +        for (boolean fFirst : new boolean[] { true, false })
1781          for (Integer v1 : new Integer[] { 1, null })
1782          for (Integer v2 : new Integer[] { 2, null })
1783      {
1784          final CompletableFuture<Integer> f = new CompletableFuture<>();
1785          final CompletableFuture<Integer> g = new CompletableFuture<>();
1786 <        final SubtractAction r = new SubtractAction();
1787 <
1788 <        f.complete(v1);
1789 <        g.complete(v2);
1790 <        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1791 <
1792 <        checkCompletedNormally(h, null);
1793 <        assertEquals(subtract(v1, v2), r.value);
1786 >        final SubtractAction r1 = new SubtractAction(m);
1787 >        final SubtractAction r2 = new SubtractAction(m);
1788 >        final SubtractAction r3 = new SubtractAction(m);
1789 >
1790 >        final CompletableFuture<Integer> fst =  fFirst ? f : g;
1791 >        final CompletableFuture<Integer> snd = !fFirst ? f : g;
1792 >        final Integer w1 =  fFirst ? v1 : v2;
1793 >        final Integer w2 = !fFirst ? v1 : v2;
1794 >
1795 >        final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1796 >        assertTrue(fst.complete(w1));
1797 >        final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1798 >        checkIncomplete(h1);
1799 >        checkIncomplete(h2);
1800 >        r1.assertNotInvoked();
1801 >        r2.assertNotInvoked();
1802 >        assertTrue(snd.complete(w2));
1803 >        final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1804 >
1805 >        checkCompletedNormally(h1, null);
1806 >        checkCompletedNormally(h2, null);
1807 >        checkCompletedNormally(h3, null);
1808 >        r1.assertValue(subtract(v1, v2));
1809 >        r2.assertValue(subtract(v1, v2));
1810 >        r3.assertValue(subtract(v1, v2));
1811          checkCompletedNormally(f, v1);
1812          checkCompletedNormally(g, v2);
1813      }}
# Line 1559 | Line 1816 | public class CompletableFutureTest exten
1816       * thenAcceptBoth result completes exceptionally after exceptional
1817       * completion of either source
1818       */
1819 <    public void testThenAcceptBoth_exceptionalCompletion1() {
1563 <        for (ExecutionMode m : ExecutionMode.values())
1564 <        for (Integer v1 : new Integer[] { 1, null })
1565 <    {
1566 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
1567 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
1568 <        final SubtractAction r = new SubtractAction();
1569 <        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1570 <        final CFException ex = new CFException();
1571 <
1572 <        f.completeExceptionally(ex);
1573 <        checkIncomplete(h);
1574 <        g.complete(v1);
1575 <
1576 <        checkCompletedWithWrappedCFException(h, ex);
1577 <        checkCompletedWithWrappedCFException(f, ex);
1578 <        assertEquals(0, r.invocationCount);
1579 <        checkCompletedNormally(g, v1);
1580 <    }}
1581 <
1582 <    public void testThenAcceptBoth_exceptionalCompletion2() {
1819 >    public void testThenAcceptBoth_exceptionalCompletion() throws Throwable {
1820          for (ExecutionMode m : ExecutionMode.values())
1821 +        for (boolean fFirst : new boolean[] { true, false })
1822 +        for (boolean failFirst : new boolean[] { true, false })
1823          for (Integer v1 : new Integer[] { 1, null })
1824      {
1825          final CompletableFuture<Integer> f = new CompletableFuture<>();
1826          final CompletableFuture<Integer> g = new CompletableFuture<>();
1588        final SubtractAction r = new SubtractAction();
1589        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1827          final CFException ex = new CFException();
1828 <
1829 <        g.completeExceptionally(ex);
1830 <        checkIncomplete(h);
1831 <        f.complete(v1);
1832 <
1833 <        checkCompletedWithWrappedCFException(h, ex);
1834 <        checkCompletedWithWrappedCFException(g, ex);
1835 <        assertEquals(0, r.invocationCount);
1836 <        checkCompletedNormally(f, v1);
1828 >        final SubtractAction r1 = new SubtractAction(m);
1829 >        final SubtractAction r2 = new SubtractAction(m);
1830 >        final SubtractAction r3 = new SubtractAction(m);
1831 >
1832 >        final CompletableFuture<Integer> fst =  fFirst ? f : g;
1833 >        final CompletableFuture<Integer> snd = !fFirst ? f : g;
1834 >        final Callable<Boolean> complete1 = failFirst ?
1835 >            () -> fst.completeExceptionally(ex) :
1836 >            () -> fst.complete(v1);
1837 >        final Callable<Boolean> complete2 = failFirst ?
1838 >            () -> snd.complete(v1) :
1839 >            () -> snd.completeExceptionally(ex);
1840 >
1841 >        final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1842 >        assertTrue(complete1.call());
1843 >        final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1844 >        checkIncomplete(h1);
1845 >        checkIncomplete(h2);
1846 >        assertTrue(complete2.call());
1847 >        final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1848 >
1849 >        checkCompletedWithWrappedException(h1, ex);
1850 >        checkCompletedWithWrappedException(h2, ex);
1851 >        checkCompletedWithWrappedException(h3, ex);
1852 >        r1.assertNotInvoked();
1853 >        r2.assertNotInvoked();
1854 >        r3.assertNotInvoked();
1855 >        checkCompletedNormally(failFirst ? snd : fst, v1);
1856 >        checkCompletedExceptionally(failFirst ? fst : snd, ex);
1857      }}
1858  
1859 <    public void testThenAcceptBoth_exceptionalCompletion3() {
1859 >    /**
1860 >     * thenAcceptBoth result completes exceptionally if either source cancelled
1861 >     */
1862 >    public void testThenAcceptBoth_sourceCancelled() throws Throwable {
1863          for (ExecutionMode m : ExecutionMode.values())
1864 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1865 +        for (boolean fFirst : new boolean[] { true, false })
1866 +        for (boolean failFirst : new boolean[] { true, false })
1867          for (Integer v1 : new Integer[] { 1, null })
1868      {
1869          final CompletableFuture<Integer> f = new CompletableFuture<>();
1870          final CompletableFuture<Integer> g = new CompletableFuture<>();
1871 <        final SubtractAction r = new SubtractAction();
1872 <        final CFException ex = new CFException();
1873 <
1874 <        g.completeExceptionally(ex);
1875 <        f.complete(v1);
1876 <        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1877 <
1878 <        checkCompletedWithWrappedCFException(h, ex);
1879 <        checkCompletedWithWrappedCFException(g, ex);
1880 <        assertEquals(0, r.invocationCount);
1881 <        checkCompletedNormally(f, v1);
1882 <    }}
1883 <
1884 <    public void testThenAcceptBoth_exceptionalCompletion4() {
1885 <        for (ExecutionMode m : ExecutionMode.values())
1886 <        for (Integer v1 : new Integer[] { 1, null })
1887 <    {
1888 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
1889 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
1890 <        final SubtractAction r = new SubtractAction();
1891 <        final CFException ex = new CFException();
1892 <
1893 <        f.completeExceptionally(ex);
1894 <        g.complete(v1);
1895 <        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1896 <
1897 <        checkCompletedWithWrappedCFException(h, ex);
1898 <        checkCompletedWithWrappedCFException(f, ex);
1899 <        assertEquals(0, r.invocationCount);
1637 <        checkCompletedNormally(g, v1);
1871 >        final SubtractAction r1 = new SubtractAction(m);
1872 >        final SubtractAction r2 = new SubtractAction(m);
1873 >        final SubtractAction r3 = new SubtractAction(m);
1874 >
1875 >        final CompletableFuture<Integer> fst =  fFirst ? f : g;
1876 >        final CompletableFuture<Integer> snd = !fFirst ? f : g;
1877 >        final Callable<Boolean> complete1 = failFirst ?
1878 >            () -> fst.cancel(mayInterruptIfRunning) :
1879 >            () -> fst.complete(v1);
1880 >        final Callable<Boolean> complete2 = failFirst ?
1881 >            () -> snd.complete(v1) :
1882 >            () -> snd.cancel(mayInterruptIfRunning);
1883 >
1884 >        final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1885 >        assertTrue(complete1.call());
1886 >        final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1887 >        checkIncomplete(h1);
1888 >        checkIncomplete(h2);
1889 >        assertTrue(complete2.call());
1890 >        final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1891 >
1892 >        checkCompletedWithWrappedCancellationException(h1);
1893 >        checkCompletedWithWrappedCancellationException(h2);
1894 >        checkCompletedWithWrappedCancellationException(h3);
1895 >        r1.assertNotInvoked();
1896 >        r2.assertNotInvoked();
1897 >        r3.assertNotInvoked();
1898 >        checkCompletedNormally(failFirst ? snd : fst, v1);
1899 >        checkCancelled(failFirst ? fst : snd);
1900      }}
1901  
1902      /**
1903       * thenAcceptBoth result completes exceptionally if action does
1904       */
1905 <    public void testThenAcceptBoth_actionFailed1() {
1644 <        for (ExecutionMode m : ExecutionMode.values())
1645 <        for (Integer v1 : new Integer[] { 1, null })
1646 <        for (Integer v2 : new Integer[] { 2, null })
1647 <    {
1648 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
1649 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
1650 <        final FailingBiConsumer r = new FailingBiConsumer();
1651 <        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1652 <
1653 <        f.complete(v1);
1654 <        checkIncomplete(h);
1655 <        g.complete(v2);
1656 <
1657 <        checkCompletedWithWrappedCFException(h);
1658 <        checkCompletedNormally(f, v1);
1659 <        checkCompletedNormally(g, v2);
1660 <    }}
1661 <
1662 <    public void testThenAcceptBoth_actionFailed2() {
1905 >    public void testThenAcceptBoth_actionFailed() {
1906          for (ExecutionMode m : ExecutionMode.values())
1907 +        for (boolean fFirst : new boolean[] { true, false })
1908          for (Integer v1 : new Integer[] { 1, null })
1909          for (Integer v2 : new Integer[] { 2, null })
1910      {
1911          final CompletableFuture<Integer> f = new CompletableFuture<>();
1912          final CompletableFuture<Integer> g = new CompletableFuture<>();
1913 <        final FailingBiConsumer r = new FailingBiConsumer();
1914 <        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1915 <
1916 <        g.complete(v2);
1917 <        checkIncomplete(h);
1918 <        f.complete(v1);
1919 <
1920 <        checkCompletedWithWrappedCFException(h);
1913 >        final FailingBiConsumer r1 = new FailingBiConsumer(m);
1914 >        final FailingBiConsumer r2 = new FailingBiConsumer(m);
1915 >        final FailingBiConsumer r3 = new FailingBiConsumer(m);
1916 >
1917 >        final CompletableFuture<Integer> fst =  fFirst ? f : g;
1918 >        final CompletableFuture<Integer> snd = !fFirst ? f : g;
1919 >        final Integer w1 =  fFirst ? v1 : v2;
1920 >        final Integer w2 = !fFirst ? v1 : v2;
1921 >
1922 >        final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1923 >        assertTrue(fst.complete(w1));
1924 >        final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1925 >        assertTrue(snd.complete(w2));
1926 >        final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1927 >
1928 >        checkCompletedWithWrappedCFException(h1);
1929 >        checkCompletedWithWrappedCFException(h2);
1930 >        checkCompletedWithWrappedCFException(h3);
1931 >        r1.assertInvoked();
1932 >        r2.assertInvoked();
1933 >        r3.assertInvoked();
1934          checkCompletedNormally(f, v1);
1935          checkCompletedNormally(g, v2);
1936      }}
1937  
1938      /**
1682     * thenAcceptBoth result completes exceptionally if either source cancelled
1683     */
1684    public void testThenAcceptBoth_sourceCancelled1() {
1685        for (ExecutionMode m : ExecutionMode.values())
1686        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1687        for (Integer v1 : new Integer[] { 1, null })
1688    {
1689        final CompletableFuture<Integer> f = new CompletableFuture<>();
1690        final CompletableFuture<Integer> g = new CompletableFuture<>();
1691        final SubtractAction r = new SubtractAction();
1692        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1693
1694        assertTrue(f.cancel(mayInterruptIfRunning));
1695        checkIncomplete(h);
1696        g.complete(v1);
1697
1698        checkCompletedWithWrappedCancellationException(h);
1699        checkCancelled(f);
1700        assertEquals(0, r.invocationCount);
1701        checkCompletedNormally(g, v1);
1702    }}
1703
1704    public void testThenAcceptBoth_sourceCancelled2() {
1705        for (ExecutionMode m : ExecutionMode.values())
1706        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1707        for (Integer v1 : new Integer[] { 1, null })
1708    {
1709        final CompletableFuture<Integer> f = new CompletableFuture<>();
1710        final CompletableFuture<Integer> g = new CompletableFuture<>();
1711        final SubtractAction r = new SubtractAction();
1712        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1713
1714        assertTrue(g.cancel(mayInterruptIfRunning));
1715        checkIncomplete(h);
1716        f.complete(v1);
1717
1718        checkCompletedWithWrappedCancellationException(h);
1719        checkCancelled(g);
1720        assertEquals(0, r.invocationCount);
1721        checkCompletedNormally(f, v1);
1722    }}
1723
1724    public void testThenAcceptBoth_sourceCancelled3() {
1725        for (ExecutionMode m : ExecutionMode.values())
1726        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1727        for (Integer v1 : new Integer[] { 1, null })
1728    {
1729        final CompletableFuture<Integer> f = new CompletableFuture<>();
1730        final CompletableFuture<Integer> g = new CompletableFuture<>();
1731        final SubtractAction r = new SubtractAction();
1732
1733        assertTrue(g.cancel(mayInterruptIfRunning));
1734        f.complete(v1);
1735        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1736
1737        checkCompletedWithWrappedCancellationException(h);
1738        checkCancelled(g);
1739        assertEquals(0, r.invocationCount);
1740        checkCompletedNormally(f, v1);
1741    }}
1742
1743    public void testThenAcceptBoth_sourceCancelled4() {
1744        for (ExecutionMode m : ExecutionMode.values())
1745        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1746        for (Integer v1 : new Integer[] { 1, null })
1747    {
1748        final CompletableFuture<Integer> f = new CompletableFuture<>();
1749        final CompletableFuture<Integer> g = new CompletableFuture<>();
1750        final SubtractAction r = new SubtractAction();
1751
1752        assertTrue(f.cancel(mayInterruptIfRunning));
1753        g.complete(v1);
1754        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1755
1756        checkCompletedWithWrappedCancellationException(h);
1757        checkCancelled(f);
1758        assertEquals(0, r.invocationCount);
1759        checkCompletedNormally(g, v1);
1760    }}
1761
1762    /**
1939       * runAfterBoth result completes normally after normal
1940       * completion of sources
1941       */
1942 <    public void testRunAfterBoth_normalCompletion1() {
1767 <        for (ExecutionMode m : ExecutionMode.values())
1768 <        for (Integer v1 : new Integer[] { 1, null })
1769 <        for (Integer v2 : new Integer[] { 2, null })
1770 <    {
1771 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
1772 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
1773 <        final Noop r = new Noop();
1774 <        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1775 <
1776 <        f.complete(v1);
1777 <        checkIncomplete(h);
1778 <        assertEquals(0, r.invocationCount);
1779 <        g.complete(v2);
1780 <
1781 <        checkCompletedNormally(h, null);
1782 <        assertEquals(1, r.invocationCount);
1783 <        checkCompletedNormally(f, v1);
1784 <        checkCompletedNormally(g, v2);
1785 <    }}
1786 <
1787 <    public void testRunAfterBoth_normalCompletion2() {
1788 <        for (ExecutionMode m : ExecutionMode.values())
1789 <        for (Integer v1 : new Integer[] { 1, null })
1790 <        for (Integer v2 : new Integer[] { 2, null })
1791 <    {
1792 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
1793 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
1794 <        final Noop r = new Noop();
1795 <        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1796 <
1797 <        g.complete(v2);
1798 <        checkIncomplete(h);
1799 <        assertEquals(0, r.invocationCount);
1800 <        f.complete(v1);
1801 <
1802 <        checkCompletedNormally(h, null);
1803 <        assertEquals(1, r.invocationCount);
1804 <        checkCompletedNormally(f, v1);
1805 <        checkCompletedNormally(g, v2);
1806 <    }}
1807 <
1808 <    public void testRunAfterBoth_normalCompletion3() {
1809 <        for (ExecutionMode m : ExecutionMode.values())
1810 <        for (Integer v1 : new Integer[] { 1, null })
1811 <        for (Integer v2 : new Integer[] { 2, null })
1812 <    {
1813 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
1814 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
1815 <        final Noop r = new Noop();
1816 <
1817 <        g.complete(v2);
1818 <        f.complete(v1);
1819 <        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1820 <
1821 <        checkCompletedNormally(h, null);
1822 <        assertEquals(1, r.invocationCount);
1823 <        checkCompletedNormally(f, v1);
1824 <        checkCompletedNormally(g, v2);
1825 <    }}
1826 <
1827 <    public void testRunAfterBoth_normalCompletion4() {
1942 >    public void testRunAfterBoth_normalCompletion() {
1943          for (ExecutionMode m : ExecutionMode.values())
1944 +        for (boolean fFirst : new boolean[] { true, false })
1945          for (Integer v1 : new Integer[] { 1, null })
1946          for (Integer v2 : new Integer[] { 2, null })
1947      {
1948          final CompletableFuture<Integer> f = new CompletableFuture<>();
1949          final CompletableFuture<Integer> g = new CompletableFuture<>();
1950 <        final Noop r = new Noop();
1951 <
1952 <        f.complete(v1);
1953 <        g.complete(v2);
1954 <        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1955 <
1956 <        checkCompletedNormally(h, null);
1957 <        assertEquals(1, r.invocationCount);
1950 >        final Noop r1 = new Noop(m);
1951 >        final Noop r2 = new Noop(m);
1952 >        final Noop r3 = new Noop(m);
1953 >
1954 >        final CompletableFuture<Integer> fst =  fFirst ? f : g;
1955 >        final CompletableFuture<Integer> snd = !fFirst ? f : g;
1956 >        final Integer w1 =  fFirst ? v1 : v2;
1957 >        final Integer w2 = !fFirst ? v1 : v2;
1958 >
1959 >        final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
1960 >        assertTrue(fst.complete(w1));
1961 >        final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
1962 >        checkIncomplete(h1);
1963 >        checkIncomplete(h2);
1964 >        r1.assertNotInvoked();
1965 >        r2.assertNotInvoked();
1966 >        assertTrue(snd.complete(w2));
1967 >        final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
1968 >
1969 >        checkCompletedNormally(h1, null);
1970 >        checkCompletedNormally(h2, null);
1971 >        checkCompletedNormally(h3, null);
1972 >        r1.assertInvoked();
1973 >        r2.assertInvoked();
1974 >        r3.assertInvoked();
1975          checkCompletedNormally(f, v1);
1976          checkCompletedNormally(g, v2);
1977      }}
# Line 1847 | Line 1980 | public class CompletableFutureTest exten
1980       * runAfterBoth result completes exceptionally after exceptional
1981       * completion of either source
1982       */
1983 <    public void testRunAfterBoth_exceptionalCompletion1() {
1851 <        for (ExecutionMode m : ExecutionMode.values())
1852 <        for (Integer v1 : new Integer[] { 1, null })
1853 <    {
1854 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
1855 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
1856 <        final Noop r = new Noop();
1857 <        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1858 <        final CFException ex = new CFException();
1859 <
1860 <        f.completeExceptionally(ex);
1861 <        checkIncomplete(h);
1862 <        g.complete(v1);
1863 <
1864 <        checkCompletedWithWrappedCFException(h, ex);
1865 <        checkCompletedWithWrappedCFException(f, ex);
1866 <        assertEquals(0, r.invocationCount);
1867 <        checkCompletedNormally(g, v1);
1868 <    }}
1869 <
1870 <    public void testRunAfterBoth_exceptionalCompletion2() {
1871 <        for (ExecutionMode m : ExecutionMode.values())
1872 <        for (Integer v1 : new Integer[] { 1, null })
1873 <    {
1874 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
1875 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
1876 <        final Noop r = new Noop();
1877 <        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1878 <        final CFException ex = new CFException();
1879 <
1880 <        g.completeExceptionally(ex);
1881 <        checkIncomplete(h);
1882 <        f.complete(v1);
1883 <
1884 <        checkCompletedWithWrappedCFException(h, ex);
1885 <        checkCompletedWithWrappedCFException(g, ex);
1886 <        assertEquals(0, r.invocationCount);
1887 <        checkCompletedNormally(f, v1);
1888 <    }}
1889 <
1890 <    public void testRunAfterBoth_exceptionalCompletion3() {
1983 >    public void testRunAfterBoth_exceptionalCompletion() throws Throwable {
1984          for (ExecutionMode m : ExecutionMode.values())
1985 +        for (boolean fFirst : new boolean[] { true, false })
1986 +        for (boolean failFirst : new boolean[] { true, false })
1987          for (Integer v1 : new Integer[] { 1, null })
1988      {
1989          final CompletableFuture<Integer> f = new CompletableFuture<>();
1990          final CompletableFuture<Integer> g = new CompletableFuture<>();
1896        final Noop r = new Noop();
1991          final CFException ex = new CFException();
1992 <
1993 <        g.completeExceptionally(ex);
1994 <        f.complete(v1);
1995 <        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1996 <
1997 <        checkCompletedWithWrappedCFException(h, ex);
1998 <        checkCompletedWithWrappedCFException(g, ex);
1999 <        assertEquals(0, r.invocationCount);
2000 <        checkCompletedNormally(f, v1);
1992 >        final Noop r1 = new Noop(m);
1993 >        final Noop r2 = new Noop(m);
1994 >        final Noop r3 = new Noop(m);
1995 >
1996 >        final CompletableFuture<Integer> fst =  fFirst ? f : g;
1997 >        final CompletableFuture<Integer> snd = !fFirst ? f : g;
1998 >        final Callable<Boolean> complete1 = failFirst ?
1999 >            () -> fst.completeExceptionally(ex) :
2000 >            () -> fst.complete(v1);
2001 >        final Callable<Boolean> complete2 = failFirst ?
2002 >            () -> snd.complete(v1) :
2003 >            () -> snd.completeExceptionally(ex);
2004 >
2005 >        final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2006 >        assertTrue(complete1.call());
2007 >        final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2008 >        checkIncomplete(h1);
2009 >        checkIncomplete(h2);
2010 >        assertTrue(complete2.call());
2011 >        final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2012 >
2013 >        checkCompletedWithWrappedException(h1, ex);
2014 >        checkCompletedWithWrappedException(h2, ex);
2015 >        checkCompletedWithWrappedException(h3, ex);
2016 >        r1.assertNotInvoked();
2017 >        r2.assertNotInvoked();
2018 >        r3.assertNotInvoked();
2019 >        checkCompletedNormally(failFirst ? snd : fst, v1);
2020 >        checkCompletedExceptionally(failFirst ? fst : snd, ex);
2021      }}
2022  
2023 <    public void testRunAfterBoth_exceptionalCompletion4() {
2023 >    /**
2024 >     * runAfterBoth result completes exceptionally if either source cancelled
2025 >     */
2026 >    public void testRunAfterBoth_sourceCancelled() throws Throwable {
2027          for (ExecutionMode m : ExecutionMode.values())
2028 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2029 +        for (boolean fFirst : new boolean[] { true, false })
2030 +        for (boolean failFirst : new boolean[] { true, false })
2031          for (Integer v1 : new Integer[] { 1, null })
2032      {
2033          final CompletableFuture<Integer> f = new CompletableFuture<>();
2034          final CompletableFuture<Integer> g = new CompletableFuture<>();
2035 <        final Noop r = new Noop();
2036 <        final CFException ex = new CFException();
2037 <
2038 <        f.completeExceptionally(ex);
2039 <        g.complete(v1);
2040 <        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
2041 <
2042 <        checkCompletedWithWrappedCFException(h, ex);
2043 <        checkCompletedWithWrappedCFException(f, ex);
2044 <        assertEquals(0, r.invocationCount);
2045 <        checkCompletedNormally(g, v1);
2035 >        final Noop r1 = new Noop(m);
2036 >        final Noop r2 = new Noop(m);
2037 >        final Noop r3 = new Noop(m);
2038 >
2039 >        final CompletableFuture<Integer> fst =  fFirst ? f : g;
2040 >        final CompletableFuture<Integer> snd = !fFirst ? f : g;
2041 >        final Callable<Boolean> complete1 = failFirst ?
2042 >            () -> fst.cancel(mayInterruptIfRunning) :
2043 >            () -> fst.complete(v1);
2044 >        final Callable<Boolean> complete2 = failFirst ?
2045 >            () -> snd.complete(v1) :
2046 >            () -> snd.cancel(mayInterruptIfRunning);
2047 >
2048 >        final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2049 >        assertTrue(complete1.call());
2050 >        final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2051 >        checkIncomplete(h1);
2052 >        checkIncomplete(h2);
2053 >        assertTrue(complete2.call());
2054 >        final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2055 >
2056 >        checkCompletedWithWrappedCancellationException(h1);
2057 >        checkCompletedWithWrappedCancellationException(h2);
2058 >        checkCompletedWithWrappedCancellationException(h3);
2059 >        r1.assertNotInvoked();
2060 >        r2.assertNotInvoked();
2061 >        r3.assertNotInvoked();
2062 >        checkCompletedNormally(failFirst ? snd : fst, v1);
2063 >        checkCancelled(failFirst ? fst : snd);
2064      }}
2065  
2066      /**
2067       * runAfterBoth result completes exceptionally if action does
2068       */
2069 <    public void testRunAfterBoth_actionFailed1() {
1932 <        for (ExecutionMode m : ExecutionMode.values())
1933 <        for (Integer v1 : new Integer[] { 1, null })
1934 <        for (Integer v2 : new Integer[] { 2, null })
1935 <    {
1936 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
1937 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
1938 <        final FailingRunnable r = new FailingRunnable();
1939 <        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1940 <
1941 <        f.complete(v1);
1942 <        checkIncomplete(h);
1943 <        g.complete(v2);
1944 <
1945 <        checkCompletedWithWrappedCFException(h);
1946 <        checkCompletedNormally(f, v1);
1947 <        checkCompletedNormally(g, v2);
1948 <    }}
1949 <
1950 <    public void testRunAfterBoth_actionFailed2() {
2069 >    public void testRunAfterBoth_actionFailed() {
2070          for (ExecutionMode m : ExecutionMode.values())
2071 +        for (boolean fFirst : new boolean[] { true, false })
2072          for (Integer v1 : new Integer[] { 1, null })
2073          for (Integer v2 : new Integer[] { 2, null })
2074      {
2075          final CompletableFuture<Integer> f = new CompletableFuture<>();
2076          final CompletableFuture<Integer> g = new CompletableFuture<>();
2077 <        final FailingRunnable r = new FailingRunnable();
2078 <        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
2079 <
2080 <        g.complete(v2);
2081 <        checkIncomplete(h);
2082 <        f.complete(v1);
2083 <
2084 <        checkCompletedWithWrappedCFException(h);
2077 >        final FailingRunnable r1 = new FailingRunnable(m);
2078 >        final FailingRunnable r2 = new FailingRunnable(m);
2079 >        final FailingRunnable r3 = new FailingRunnable(m);
2080 >
2081 >        final CompletableFuture<Integer> fst =  fFirst ? f : g;
2082 >        final CompletableFuture<Integer> snd = !fFirst ? f : g;
2083 >        final Integer w1 =  fFirst ? v1 : v2;
2084 >        final Integer w2 = !fFirst ? v1 : v2;
2085 >
2086 >        final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2087 >        assertTrue(fst.complete(w1));
2088 >        final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2089 >        assertTrue(snd.complete(w2));
2090 >        final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2091 >
2092 >        checkCompletedWithWrappedCFException(h1);
2093 >        checkCompletedWithWrappedCFException(h2);
2094 >        checkCompletedWithWrappedCFException(h3);
2095 >        r1.assertInvoked();
2096 >        r2.assertInvoked();
2097 >        r3.assertInvoked();
2098          checkCompletedNormally(f, v1);
2099          checkCompletedNormally(g, v2);
2100      }}
2101  
2102      /**
1970     * runAfterBoth result completes exceptionally if either source cancelled
1971     */
1972    public void testRunAfterBoth_sourceCancelled1() {
1973        for (ExecutionMode m : ExecutionMode.values())
1974        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1975        for (Integer v1 : new Integer[] { 1, null })
1976    {
1977        final CompletableFuture<Integer> f = new CompletableFuture<>();
1978        final CompletableFuture<Integer> g = new CompletableFuture<>();
1979        final Noop r = new Noop();
1980        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1981
1982        assertTrue(f.cancel(mayInterruptIfRunning));
1983        checkIncomplete(h);
1984        g.complete(v1);
1985
1986        checkCompletedWithWrappedCancellationException(h);
1987        checkCancelled(f);
1988        assertEquals(0, r.invocationCount);
1989        checkCompletedNormally(g, v1);
1990    }}
1991
1992    public void testRunAfterBoth_sourceCancelled2() {
1993        for (ExecutionMode m : ExecutionMode.values())
1994        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1995        for (Integer v1 : new Integer[] { 1, null })
1996    {
1997        final CompletableFuture<Integer> f = new CompletableFuture<>();
1998        final CompletableFuture<Integer> g = new CompletableFuture<>();
1999        final Noop r = new Noop();
2000        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
2001
2002        assertTrue(g.cancel(mayInterruptIfRunning));
2003        checkIncomplete(h);
2004        f.complete(v1);
2005
2006        checkCompletedWithWrappedCancellationException(h);
2007        checkCancelled(g);
2008        assertEquals(0, r.invocationCount);
2009        checkCompletedNormally(f, v1);
2010    }}
2011
2012    public void testRunAfterBoth_sourceCancelled3() {
2013        for (ExecutionMode m : ExecutionMode.values())
2014        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2015        for (Integer v1 : new Integer[] { 1, null })
2016    {
2017        final CompletableFuture<Integer> f = new CompletableFuture<>();
2018        final CompletableFuture<Integer> g = new CompletableFuture<>();
2019        final Noop r = new Noop();
2020
2021        assertTrue(g.cancel(mayInterruptIfRunning));
2022        f.complete(v1);
2023        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
2024
2025        checkCompletedWithWrappedCancellationException(h);
2026        checkCancelled(g);
2027        assertEquals(0, r.invocationCount);
2028        checkCompletedNormally(f, v1);
2029    }}
2030
2031    public void testRunAfterBoth_sourceCancelled4() {
2032        for (ExecutionMode m : ExecutionMode.values())
2033        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2034        for (Integer v1 : new Integer[] { 1, null })
2035    {
2036        final CompletableFuture<Integer> f = new CompletableFuture<>();
2037        final CompletableFuture<Integer> g = new CompletableFuture<>();
2038        final Noop r = new Noop();
2039
2040        assertTrue(f.cancel(mayInterruptIfRunning));
2041        g.complete(v1);
2042        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
2043
2044        checkCompletedWithWrappedCancellationException(h);
2045        checkCancelled(f);
2046        assertEquals(0, r.invocationCount);
2047        checkCompletedNormally(g, v1);
2048    }}
2049
2050    /**
2103       * applyToEither result completes normally after normal completion
2104       * of either source
2105       */
2106 <    public void testApplyToEither_normalCompletion1() {
2106 >    public void testApplyToEither_normalCompletion() {
2107          for (ExecutionMode m : ExecutionMode.values())
2108          for (Integer v1 : new Integer[] { 1, null })
2109          for (Integer v2 : new Integer[] { 2, null })
2110      {
2111          final CompletableFuture<Integer> f = new CompletableFuture<>();
2112          final CompletableFuture<Integer> g = new CompletableFuture<>();
2113 <        final IncFunction r = new IncFunction();
2114 <        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2113 >        final IncFunction[] rs = new IncFunction[6];
2114 >        for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2115  
2116 +        final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2117 +        final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2118 +        checkIncomplete(h0);
2119 +        checkIncomplete(h1);
2120 +        rs[0].assertNotInvoked();
2121 +        rs[1].assertNotInvoked();
2122          f.complete(v1);
2123 <        checkCompletedNormally(h, inc(v1));
2123 >        checkCompletedNormally(h0, inc(v1));
2124 >        checkCompletedNormally(h1, inc(v1));
2125 >        final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2126 >        final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2127 >        checkCompletedNormally(h2, inc(v1));
2128 >        checkCompletedNormally(h3, inc(v1));
2129          g.complete(v2);
2130  
2131 <        checkCompletedNormally(f, v1);
2132 <        checkCompletedNormally(g, v2);
2133 <        checkCompletedNormally(h, inc(v1));
2134 <    }}
2135 <
2136 <    public void testApplyToEither_normalCompletion2() {
2137 <        for (ExecutionMode m : ExecutionMode.values())
2138 <        for (Integer v1 : new Integer[] { 1, null })
2139 <        for (Integer v2 : new Integer[] { 2, null })
2077 <    {
2078 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
2079 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
2080 <        final IncFunction r = new IncFunction();
2081 <        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2082 <
2083 <        g.complete(v2);
2084 <        checkCompletedNormally(h, inc(v2));
2085 <        f.complete(v1);
2131 >        // unspecified behavior - both source completions available
2132 >        final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2133 >        final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2134 >        rs[4].assertValue(h4.join());
2135 >        rs[5].assertValue(h5.join());
2136 >        assertTrue(Objects.equals(inc(v1), h4.join()) ||
2137 >                   Objects.equals(inc(v2), h4.join()));
2138 >        assertTrue(Objects.equals(inc(v1), h5.join()) ||
2139 >                   Objects.equals(inc(v2), h5.join()));
2140  
2141          checkCompletedNormally(f, v1);
2142          checkCompletedNormally(g, v2);
2143 <        checkCompletedNormally(h, inc(v2));
2144 <        }}
2145 <
2146 <    public void testApplyToEither_normalCompletion3() {
2147 <        for (ExecutionMode m : ExecutionMode.values())
2094 <        for (Integer v1 : new Integer[] { 1, null })
2095 <        for (Integer v2 : new Integer[] { 2, null })
2096 <    {
2097 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
2098 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
2099 <        final IncFunction r = new IncFunction();
2100 <
2101 <        f.complete(v1);
2102 <        g.complete(v2);
2103 <        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2104 <
2105 <        checkCompletedNormally(f, v1);
2106 <        checkCompletedNormally(g, v2);
2107 <
2108 <        // unspecified behavior
2109 <        assertTrue(Objects.equals(h.join(), inc(v1)) ||
2110 <                   Objects.equals(h.join(), inc(v2)));
2111 <        assertEquals(1, r.invocationCount);
2143 >        checkCompletedNormally(h0, inc(v1));
2144 >        checkCompletedNormally(h1, inc(v1));
2145 >        checkCompletedNormally(h2, inc(v1));
2146 >        checkCompletedNormally(h3, inc(v1));
2147 >        for (int i = 0; i < 4; i++) rs[i].assertValue(inc(v1));
2148      }}
2149  
2150      /**
2151       * applyToEither result completes exceptionally after exceptional
2152       * completion of either source
2153       */
2154 <    public void testApplyToEither_exceptionalCompletion1() {
2154 >    public void testApplyToEither_exceptionalCompletion() {
2155          for (ExecutionMode m : ExecutionMode.values())
2156          for (Integer v1 : new Integer[] { 1, null })
2157      {
2158          final CompletableFuture<Integer> f = new CompletableFuture<>();
2159          final CompletableFuture<Integer> g = new CompletableFuture<>();
2124        final IncFunction r = new IncFunction();
2125        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2160          final CFException ex = new CFException();
2161 +        final IncFunction[] rs = new IncFunction[6];
2162 +        for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2163  
2164 +        final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2165 +        final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2166 +        checkIncomplete(h0);
2167 +        checkIncomplete(h1);
2168 +        rs[0].assertNotInvoked();
2169 +        rs[1].assertNotInvoked();
2170          f.completeExceptionally(ex);
2171 <        checkCompletedWithWrappedCFException(h, ex);
2171 >        checkCompletedWithWrappedException(h0, ex);
2172 >        checkCompletedWithWrappedException(h1, ex);
2173 >        final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2174 >        final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2175 >        checkCompletedWithWrappedException(h2, ex);
2176 >        checkCompletedWithWrappedException(h3, ex);
2177          g.complete(v1);
2178  
2179 <        assertEquals(0, r.invocationCount);
2179 >        // unspecified behavior - both source completions available
2180 >        final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2181 >        final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2182 >        try {
2183 >            assertEquals(inc(v1), h4.join());
2184 >            rs[4].assertValue(inc(v1));
2185 >        } catch (CompletionException ok) {
2186 >            checkCompletedWithWrappedException(h4, ex);
2187 >            rs[4].assertNotInvoked();
2188 >        }
2189 >        try {
2190 >            assertEquals(inc(v1), h5.join());
2191 >            rs[5].assertValue(inc(v1));
2192 >        } catch (CompletionException ok) {
2193 >            checkCompletedWithWrappedException(h5, ex);
2194 >            rs[5].assertNotInvoked();
2195 >        }
2196 >
2197 >        checkCompletedExceptionally(f, ex);
2198          checkCompletedNormally(g, v1);
2199 <        checkCompletedWithWrappedCFException(f, ex);
2200 <        checkCompletedWithWrappedCFException(h, ex);
2199 >        checkCompletedWithWrappedException(h0, ex);
2200 >        checkCompletedWithWrappedException(h1, ex);
2201 >        checkCompletedWithWrappedException(h2, ex);
2202 >        checkCompletedWithWrappedException(h3, ex);
2203 >        checkCompletedWithWrappedException(h4, ex);
2204 >        for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2205      }}
2206  
2207      public void testApplyToEither_exceptionalCompletion2() {
2208          for (ExecutionMode m : ExecutionMode.values())
2209 +        for (boolean fFirst : new boolean[] { true, false })
2210          for (Integer v1 : new Integer[] { 1, null })
2211      {
2212          final CompletableFuture<Integer> f = new CompletableFuture<>();
2213          final CompletableFuture<Integer> g = new CompletableFuture<>();
2144        final IncFunction r = new IncFunction();
2145        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2146        final CFException ex = new CFException();
2147
2148        g.completeExceptionally(ex);
2149        checkCompletedWithWrappedCFException(h, ex);
2150        f.complete(v1);
2151
2152        assertEquals(0, r.invocationCount);
2153        checkCompletedNormally(f, v1);
2154        checkCompletedWithWrappedCFException(g, ex);
2155        checkCompletedWithWrappedCFException(h, ex);
2156    }}
2157
2158    public void testApplyToEither_exceptionalCompletion3() {
2159        for (ExecutionMode m : ExecutionMode.values())
2160        for (Integer v1 : new Integer[] { 1, null })
2161    {
2162        final CompletableFuture<Integer> f = new CompletableFuture<>();
2163        final CompletableFuture<Integer> g = new CompletableFuture<>();
2164        final IncFunction r = new IncFunction();
2214          final CFException ex = new CFException();
2215 +        final IncFunction[] rs = new IncFunction[6];
2216 +        for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2217  
2218 <        g.completeExceptionally(ex);
2219 <        f.complete(v1);
2220 <        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2218 >        final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2219 >        final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2220 >        assertTrue(fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2221 >        assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2222 >        final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2223 >        final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2224  
2225 <        // unspecified behavior
2172 <        Integer v;
2225 >        // unspecified behavior - both source completions available
2226          try {
2227 <            assertEquals(inc(v1), h.join());
2228 <            assertEquals(1, r.invocationCount);
2227 >            assertEquals(inc(v1), h0.join());
2228 >            rs[0].assertValue(inc(v1));
2229          } catch (CompletionException ok) {
2230 <            checkCompletedWithWrappedCFException(h, ex);
2231 <            assertEquals(0, r.invocationCount);
2230 >            checkCompletedWithWrappedException(h0, ex);
2231 >            rs[0].assertNotInvoked();
2232          }
2180
2181        checkCompletedWithWrappedCFException(g, ex);
2182        checkCompletedNormally(f, v1);
2183    }}
2184
2185    public void testApplyToEither_exceptionalCompletion4() {
2186        for (ExecutionMode m : ExecutionMode.values())
2187        for (Integer v1 : new Integer[] { 1, null })
2188    {
2189        final CompletableFuture<Integer> f = new CompletableFuture<>();
2190        final CompletableFuture<Integer> g = new CompletableFuture<>();
2191        final IncFunction r = new IncFunction();
2192        final CFException ex = new CFException();
2193
2194        f.completeExceptionally(ex);
2195        g.complete(v1);
2196        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2197
2198        // unspecified behavior
2199        Integer v;
2233          try {
2234 <            assertEquals(inc(v1), h.join());
2235 <            assertEquals(1, r.invocationCount);
2234 >            assertEquals(inc(v1), h1.join());
2235 >            rs[1].assertValue(inc(v1));
2236          } catch (CompletionException ok) {
2237 <            checkCompletedWithWrappedCFException(h, ex);
2238 <            assertEquals(0, r.invocationCount);
2237 >            checkCompletedWithWrappedException(h1, ex);
2238 >            rs[1].assertNotInvoked();
2239 >        }
2240 >        try {
2241 >            assertEquals(inc(v1), h2.join());
2242 >            rs[2].assertValue(inc(v1));
2243 >        } catch (CompletionException ok) {
2244 >            checkCompletedWithWrappedException(h2, ex);
2245 >            rs[2].assertNotInvoked();
2246 >        }
2247 >        try {
2248 >            assertEquals(inc(v1), h3.join());
2249 >            rs[3].assertValue(inc(v1));
2250 >        } catch (CompletionException ok) {
2251 >            checkCompletedWithWrappedException(h3, ex);
2252 >            rs[3].assertNotInvoked();
2253          }
2254  
2208        checkCompletedWithWrappedCFException(f, ex);
2209        checkCompletedNormally(g, v1);
2210    }}
2211
2212    /**
2213     * applyToEither result completes exceptionally if action does
2214     */
2215    public void testApplyToEither_actionFailed1() {
2216        for (ExecutionMode m : ExecutionMode.values())
2217        for (Integer v1 : new Integer[] { 1, null })
2218        for (Integer v2 : new Integer[] { 2, null })
2219    {
2220        final CompletableFuture<Integer> f = new CompletableFuture<>();
2221        final CompletableFuture<Integer> g = new CompletableFuture<>();
2222        final FailingFunction r = new FailingFunction();
2223        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2224
2225        f.complete(v1);
2226        checkCompletedWithWrappedCFException(h);
2227        g.complete(v2);
2228        checkCompletedNormally(f, v1);
2229        checkCompletedNormally(g, v2);
2230    }}
2231
2232    public void testApplyToEither_actionFailed2() {
2233        for (ExecutionMode m : ExecutionMode.values())
2234        for (Integer v1 : new Integer[] { 1, null })
2235        for (Integer v2 : new Integer[] { 2, null })
2236    {
2237        final CompletableFuture<Integer> f = new CompletableFuture<>();
2238        final CompletableFuture<Integer> g = new CompletableFuture<>();
2239        final FailingFunction r = new FailingFunction();
2240        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2241
2242        g.complete(v2);
2243        checkCompletedWithWrappedCFException(h);
2244        f.complete(v1);
2255          checkCompletedNormally(f, v1);
2256 <        checkCompletedNormally(g, v2);
2256 >        checkCompletedExceptionally(g, ex);
2257      }}
2258  
2259      /**
2260       * applyToEither result completes exceptionally if either source cancelled
2261       */
2262 <    public void testApplyToEither_sourceCancelled1() {
2262 >    public void testApplyToEither_sourceCancelled() {
2263          for (ExecutionMode m : ExecutionMode.values())
2264          for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2265          for (Integer v1 : new Integer[] { 1, null })
2266      {
2267          final CompletableFuture<Integer> f = new CompletableFuture<>();
2268          final CompletableFuture<Integer> g = new CompletableFuture<>();
2269 <        final IncFunction r = new IncFunction();
2270 <        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2269 >        final IncFunction[] rs = new IncFunction[6];
2270 >        for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2271  
2272 <        assertTrue(f.cancel(mayInterruptIfRunning));
2273 <        checkCompletedWithWrappedCancellationException(h);
2272 >        final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2273 >        final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2274 >        checkIncomplete(h0);
2275 >        checkIncomplete(h1);
2276 >        rs[0].assertNotInvoked();
2277 >        rs[1].assertNotInvoked();
2278 >        f.cancel(mayInterruptIfRunning);
2279 >        checkCompletedWithWrappedCancellationException(h0);
2280 >        checkCompletedWithWrappedCancellationException(h1);
2281 >        final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2282 >        final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2283 >        checkCompletedWithWrappedCancellationException(h2);
2284 >        checkCompletedWithWrappedCancellationException(h3);
2285          g.complete(v1);
2286  
2287 +        // unspecified behavior - both source completions available
2288 +        final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2289 +        final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2290 +        try {
2291 +            assertEquals(inc(v1), h4.join());
2292 +            rs[4].assertValue(inc(v1));
2293 +        } catch (CompletionException ok) {
2294 +            checkCompletedWithWrappedCancellationException(h4);
2295 +            rs[4].assertNotInvoked();
2296 +        }
2297 +        try {
2298 +            assertEquals(inc(v1), h5.join());
2299 +            rs[5].assertValue(inc(v1));
2300 +        } catch (CompletionException ok) {
2301 +            checkCompletedWithWrappedCancellationException(h5);
2302 +            rs[5].assertNotInvoked();
2303 +        }
2304 +
2305          checkCancelled(f);
2267        assertEquals(0, r.invocationCount);
2306          checkCompletedNormally(g, v1);
2307 <        checkCompletedWithWrappedCancellationException(h);
2307 >        checkCompletedWithWrappedCancellationException(h0);
2308 >        checkCompletedWithWrappedCancellationException(h1);
2309 >        checkCompletedWithWrappedCancellationException(h2);
2310 >        checkCompletedWithWrappedCancellationException(h3);
2311 >        for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2312      }}
2313  
2314      public void testApplyToEither_sourceCancelled2() {
2315          for (ExecutionMode m : ExecutionMode.values())
2316          for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2317 +        for (boolean fFirst : new boolean[] { true, false })
2318          for (Integer v1 : new Integer[] { 1, null })
2319      {
2320          final CompletableFuture<Integer> f = new CompletableFuture<>();
2321          final CompletableFuture<Integer> g = new CompletableFuture<>();
2322 <        final IncFunction r = new IncFunction();
2323 <        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2281 <
2282 <        assertTrue(g.cancel(mayInterruptIfRunning));
2283 <        checkCompletedWithWrappedCancellationException(h);
2284 <        f.complete(v1);
2285 <
2286 <        checkCancelled(g);
2287 <        assertEquals(0, r.invocationCount);
2288 <        checkCompletedNormally(f, v1);
2289 <        checkCompletedWithWrappedCancellationException(h);
2290 <    }}
2291 <
2292 <    public void testApplyToEither_sourceCancelled3() {
2293 <        for (ExecutionMode m : ExecutionMode.values())
2294 <        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2295 <        for (Integer v1 : new Integer[] { 1, null })
2296 <    {
2297 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
2298 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
2299 <        final IncFunction r = new IncFunction();
2322 >        final IncFunction[] rs = new IncFunction[6];
2323 >        for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2324  
2325 <        assertTrue(g.cancel(mayInterruptIfRunning));
2326 <        f.complete(v1);
2327 <        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2325 >        final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2326 >        final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2327 >        assertTrue(fFirst ? f.complete(v1) : g.cancel(mayInterruptIfRunning));
2328 >        assertTrue(!fFirst ? f.complete(v1) : g.cancel(mayInterruptIfRunning));
2329 >        final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2330 >        final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2331  
2332 <        // unspecified behavior
2306 <        Integer v;
2332 >        // unspecified behavior - both source completions available
2333          try {
2334 <            assertEquals(inc(v1), h.join());
2335 <            assertEquals(1, r.invocationCount);
2334 >            assertEquals(inc(v1), h0.join());
2335 >            rs[0].assertValue(inc(v1));
2336          } catch (CompletionException ok) {
2337 <            checkCompletedWithWrappedCancellationException(h);
2338 <            assertEquals(0, r.invocationCount);
2337 >            checkCompletedWithWrappedCancellationException(h0);
2338 >            rs[0].assertNotInvoked();
2339          }
2314
2315        checkCancelled(g);
2316        checkCompletedNormally(f, v1);
2317    }}
2318
2319    public void testApplyToEither_sourceCancelled4() {
2320        for (ExecutionMode m : ExecutionMode.values())
2321        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2322        for (Integer v1 : new Integer[] { 1, null })
2323    {
2324        final CompletableFuture<Integer> f = new CompletableFuture<>();
2325        final CompletableFuture<Integer> g = new CompletableFuture<>();
2326        final IncFunction r = new IncFunction();
2327
2328        assertTrue(f.cancel(mayInterruptIfRunning));
2329        g.complete(v1);
2330        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2331
2332        // unspecified behavior
2333        Integer v;
2340          try {
2341 <            assertEquals(inc(v1), h.join());
2342 <            assertEquals(1, r.invocationCount);
2341 >            assertEquals(inc(v1), h1.join());
2342 >            rs[1].assertValue(inc(v1));
2343          } catch (CompletionException ok) {
2344 <            checkCompletedWithWrappedCancellationException(h);
2345 <            assertEquals(0, r.invocationCount);
2344 >            checkCompletedWithWrappedCancellationException(h1);
2345 >            rs[1].assertNotInvoked();
2346 >        }
2347 >        try {
2348 >            assertEquals(inc(v1), h2.join());
2349 >            rs[2].assertValue(inc(v1));
2350 >        } catch (CompletionException ok) {
2351 >            checkCompletedWithWrappedCancellationException(h2);
2352 >            rs[2].assertNotInvoked();
2353 >        }
2354 >        try {
2355 >            assertEquals(inc(v1), h3.join());
2356 >            rs[3].assertValue(inc(v1));
2357 >        } catch (CompletionException ok) {
2358 >            checkCompletedWithWrappedCancellationException(h3);
2359 >            rs[3].assertNotInvoked();
2360          }
2361  
2362 <        checkCancelled(f);
2363 <        checkCompletedNormally(g, v1);
2362 >        checkCompletedNormally(f, v1);
2363 >        checkCancelled(g);
2364      }}
2365  
2366      /**
2367 <     * acceptEither result completes normally after normal completion
2348 <     * of either source
2367 >     * applyToEither result completes exceptionally if action does
2368       */
2369 <    public void testAcceptEither_normalCompletion1() {
2369 >    public void testApplyToEither_actionFailed() {
2370          for (ExecutionMode m : ExecutionMode.values())
2371          for (Integer v1 : new Integer[] { 1, null })
2372          for (Integer v2 : new Integer[] { 2, null })
2373      {
2374          final CompletableFuture<Integer> f = new CompletableFuture<>();
2375          final CompletableFuture<Integer> g = new CompletableFuture<>();
2376 <        final IncAction r = new IncAction();
2377 <        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2376 >        final FailingFunction[] rs = new FailingFunction[6];
2377 >        for (int i = 0; i < rs.length; i++) rs[i] = new FailingFunction(m);
2378  
2379 +        final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2380 +        final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2381          f.complete(v1);
2382 <        checkCompletedNormally(h, null);
2383 <        assertEquals(inc(v1), r.value);
2382 >        final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2383 >        final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2384 >        checkCompletedWithWrappedCFException(h0);
2385 >        checkCompletedWithWrappedCFException(h1);
2386 >        checkCompletedWithWrappedCFException(h2);
2387 >        checkCompletedWithWrappedCFException(h3);
2388 >        for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2389 >
2390          g.complete(v2);
2391  
2392 <        checkCompletedNormally(f, v1);
2393 <        checkCompletedNormally(g, v2);
2394 <        checkCompletedNormally(h, null);
2368 <    }}
2392 >        // unspecified behavior - both source completions available
2393 >        final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2394 >        final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2395  
2396 <    public void testAcceptEither_normalCompletion2() {
2397 <        for (ExecutionMode m : ExecutionMode.values())
2398 <        for (Integer v1 : new Integer[] { 1, null })
2399 <        for (Integer v2 : new Integer[] { 2, null })
2400 <    {
2401 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
2376 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
2377 <        final IncAction r = new IncAction();
2378 <        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2379 <
2380 <        g.complete(v2);
2381 <        checkCompletedNormally(h, null);
2382 <        assertEquals(inc(v2), r.value);
2383 <        f.complete(v1);
2396 >        checkCompletedWithWrappedCFException(h4);
2397 >        assertTrue(Objects.equals(v1, rs[4].value) ||
2398 >                   Objects.equals(v2, rs[4].value));
2399 >        checkCompletedWithWrappedCFException(h5);
2400 >        assertTrue(Objects.equals(v1, rs[5].value) ||
2401 >                   Objects.equals(v2, rs[5].value));
2402  
2403          checkCompletedNormally(f, v1);
2404          checkCompletedNormally(g, v2);
2387        checkCompletedNormally(h, null);
2405      }}
2406  
2407 <    public void testAcceptEither_normalCompletion3() {
2407 >    /**
2408 >     * acceptEither result completes normally after normal completion
2409 >     * of either source
2410 >     */
2411 >    public void testAcceptEither_normalCompletion() {
2412          for (ExecutionMode m : ExecutionMode.values())
2413          for (Integer v1 : new Integer[] { 1, null })
2414          for (Integer v2 : new Integer[] { 2, null })
2415      {
2416          final CompletableFuture<Integer> f = new CompletableFuture<>();
2417          final CompletableFuture<Integer> g = new CompletableFuture<>();
2418 <        final IncAction r = new IncAction();
2418 >        final NoopConsumer[] rs = new NoopConsumer[6];
2419 >        for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2420  
2421 +        final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2422 +        final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2423 +        checkIncomplete(h0);
2424 +        checkIncomplete(h1);
2425 +        rs[0].assertNotInvoked();
2426 +        rs[1].assertNotInvoked();
2427          f.complete(v1);
2428 +        checkCompletedNormally(h0, null);
2429 +        checkCompletedNormally(h1, null);
2430 +        rs[0].assertValue(v1);
2431 +        rs[1].assertValue(v1);
2432 +        final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2433 +        final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2434 +        checkCompletedNormally(h2, null);
2435 +        checkCompletedNormally(h3, null);
2436 +        rs[2].assertValue(v1);
2437 +        rs[3].assertValue(v1);
2438          g.complete(v2);
2401        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2439  
2440 <        checkCompletedNormally(h, null);
2440 >        // unspecified behavior - both source completions available
2441 >        final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2442 >        final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2443 >        checkCompletedNormally(h4, null);
2444 >        checkCompletedNormally(h5, null);
2445 >        assertTrue(Objects.equals(v1, rs[4].value) ||
2446 >                   Objects.equals(v2, rs[4].value));
2447 >        assertTrue(Objects.equals(v1, rs[5].value) ||
2448 >                   Objects.equals(v2, rs[5].value));
2449 >
2450          checkCompletedNormally(f, v1);
2451          checkCompletedNormally(g, v2);
2452 <
2453 <        // unspecified behavior
2454 <        assertTrue(Objects.equals(r.value, inc(v1)) ||
2455 <                   Objects.equals(r.value, inc(v2)));
2452 >        checkCompletedNormally(h0, null);
2453 >        checkCompletedNormally(h1, null);
2454 >        checkCompletedNormally(h2, null);
2455 >        checkCompletedNormally(h3, null);
2456 >        for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2457      }}
2458  
2459      /**
2460       * acceptEither result completes exceptionally after exceptional
2461       * completion of either source
2462       */
2463 <    public void testAcceptEither_exceptionalCompletion1() {
2463 >    public void testAcceptEither_exceptionalCompletion() {
2464          for (ExecutionMode m : ExecutionMode.values())
2465          for (Integer v1 : new Integer[] { 1, null })
2466      {
2467          final CompletableFuture<Integer> f = new CompletableFuture<>();
2468          final CompletableFuture<Integer> g = new CompletableFuture<>();
2422        final IncAction r = new IncAction();
2423        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2469          final CFException ex = new CFException();
2470 +        final NoopConsumer[] rs = new NoopConsumer[6];
2471 +        for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2472  
2473 +        final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2474 +        final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2475 +        checkIncomplete(h0);
2476 +        checkIncomplete(h1);
2477 +        rs[0].assertNotInvoked();
2478 +        rs[1].assertNotInvoked();
2479          f.completeExceptionally(ex);
2480 <        checkCompletedWithWrappedCFException(h, ex);
2480 >        checkCompletedWithWrappedException(h0, ex);
2481 >        checkCompletedWithWrappedException(h1, ex);
2482 >        final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2483 >        final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2484 >        checkCompletedWithWrappedException(h2, ex);
2485 >        checkCompletedWithWrappedException(h3, ex);
2486 >
2487          g.complete(v1);
2488  
2489 <        assertEquals(0, r.invocationCount);
2489 >        // unspecified behavior - both source completions available
2490 >        final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2491 >        final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2492 >        try {
2493 >            assertNull(h4.join());
2494 >            rs[4].assertValue(v1);
2495 >        } catch (CompletionException ok) {
2496 >            checkCompletedWithWrappedException(h4, ex);
2497 >            rs[4].assertNotInvoked();
2498 >        }
2499 >        try {
2500 >            assertNull(h5.join());
2501 >            rs[5].assertValue(v1);
2502 >        } catch (CompletionException ok) {
2503 >            checkCompletedWithWrappedException(h5, ex);
2504 >            rs[5].assertNotInvoked();
2505 >        }
2506 >
2507 >        checkCompletedExceptionally(f, ex);
2508          checkCompletedNormally(g, v1);
2509 <        checkCompletedWithWrappedCFException(f, ex);
2510 <        checkCompletedWithWrappedCFException(h, ex);
2509 >        checkCompletedWithWrappedException(h0, ex);
2510 >        checkCompletedWithWrappedException(h1, ex);
2511 >        checkCompletedWithWrappedException(h2, ex);
2512 >        checkCompletedWithWrappedException(h3, ex);
2513 >        checkCompletedWithWrappedException(h4, ex);
2514 >        for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2515      }}
2516  
2517      public void testAcceptEither_exceptionalCompletion2() {
2518          for (ExecutionMode m : ExecutionMode.values())
2519 +        for (boolean fFirst : new boolean[] { true, false })
2520          for (Integer v1 : new Integer[] { 1, null })
2521      {
2522          final CompletableFuture<Integer> f = new CompletableFuture<>();
2523          final CompletableFuture<Integer> g = new CompletableFuture<>();
2442        final IncAction r = new IncAction();
2443        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2444        final CFException ex = new CFException();
2445
2446        g.completeExceptionally(ex);
2447        checkCompletedWithWrappedCFException(h, ex);
2448        f.complete(v1);
2449
2450        assertEquals(0, r.invocationCount);
2451        checkCompletedNormally(f, v1);
2452        checkCompletedWithWrappedCFException(g, ex);
2453        checkCompletedWithWrappedCFException(h, ex);
2454    }}
2455
2456    public void testAcceptEither_exceptionalCompletion3() {
2457        for (ExecutionMode m : ExecutionMode.values())
2458        for (Integer v1 : new Integer[] { 1, null })
2459    {
2460        final CompletableFuture<Integer> f = new CompletableFuture<>();
2461        final CompletableFuture<Integer> g = new CompletableFuture<>();
2462        final IncAction r = new IncAction();
2524          final CFException ex = new CFException();
2525 +        final NoopConsumer[] rs = new NoopConsumer[6];
2526 +        for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2527  
2528 <        g.completeExceptionally(ex);
2529 <        f.complete(v1);
2530 <        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2528 >        final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2529 >        final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2530 >        assertTrue(fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2531 >        assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2532 >        final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2533 >        final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2534  
2535 <        // unspecified behavior
2470 <        Integer v;
2535 >        // unspecified behavior - both source completions available
2536          try {
2537 <            assertNull(h.join());
2538 <            assertEquals(1, r.invocationCount);
2474 <            assertEquals(inc(v1), r.value);
2537 >            assertEquals(null, h0.join());
2538 >            rs[0].assertValue(v1);
2539          } catch (CompletionException ok) {
2540 <            checkCompletedWithWrappedCFException(h, ex);
2541 <            assertEquals(0, r.invocationCount);
2540 >            checkCompletedWithWrappedException(h0, ex);
2541 >            rs[0].assertNotInvoked();
2542          }
2479
2480        checkCompletedWithWrappedCFException(g, ex);
2481        checkCompletedNormally(f, v1);
2482    }}
2483
2484    public void testAcceptEither_exceptionalCompletion4() {
2485        for (ExecutionMode m : ExecutionMode.values())
2486        for (Integer v1 : new Integer[] { 1, null })
2487    {
2488        final CompletableFuture<Integer> f = new CompletableFuture<>();
2489        final CompletableFuture<Integer> g = new CompletableFuture<>();
2490        final IncAction r = new IncAction();
2491        final CFException ex = new CFException();
2492
2493        f.completeExceptionally(ex);
2494        g.complete(v1);
2495        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2496
2497        // unspecified behavior
2498        Integer v;
2543          try {
2544 <            assertNull(h.join());
2545 <            assertEquals(1, r.invocationCount);
2502 <            assertEquals(inc(v1), r.value);
2544 >            assertEquals(null, h1.join());
2545 >            rs[1].assertValue(v1);
2546          } catch (CompletionException ok) {
2547 <            checkCompletedWithWrappedCFException(h, ex);
2548 <            assertEquals(0, r.invocationCount);
2547 >            checkCompletedWithWrappedException(h1, ex);
2548 >            rs[1].assertNotInvoked();
2549 >        }
2550 >        try {
2551 >            assertEquals(null, h2.join());
2552 >            rs[2].assertValue(v1);
2553 >        } catch (CompletionException ok) {
2554 >            checkCompletedWithWrappedException(h2, ex);
2555 >            rs[2].assertNotInvoked();
2556 >        }
2557 >        try {
2558 >            assertEquals(null, h3.join());
2559 >            rs[3].assertValue(v1);
2560 >        } catch (CompletionException ok) {
2561 >            checkCompletedWithWrappedException(h3, ex);
2562 >            rs[3].assertNotInvoked();
2563          }
2564  
2508        checkCompletedWithWrappedCFException(f, ex);
2509        checkCompletedNormally(g, v1);
2510    }}
2511
2512    /**
2513     * acceptEither result completes exceptionally if action does
2514     */
2515    public void testAcceptEither_actionFailed1() {
2516        for (ExecutionMode m : ExecutionMode.values())
2517        for (Integer v1 : new Integer[] { 1, null })
2518        for (Integer v2 : new Integer[] { 2, null })
2519    {
2520        final CompletableFuture<Integer> f = new CompletableFuture<>();
2521        final CompletableFuture<Integer> g = new CompletableFuture<>();
2522        final FailingConsumer r = new FailingConsumer();
2523        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2524
2525        f.complete(v1);
2526        checkCompletedWithWrappedCFException(h);
2527        g.complete(v2);
2528        checkCompletedNormally(f, v1);
2529        checkCompletedNormally(g, v2);
2530    }}
2531
2532    public void testAcceptEither_actionFailed2() {
2533        for (ExecutionMode m : ExecutionMode.values())
2534        for (Integer v1 : new Integer[] { 1, null })
2535        for (Integer v2 : new Integer[] { 2, null })
2536    {
2537        final CompletableFuture<Integer> f = new CompletableFuture<>();
2538        final CompletableFuture<Integer> g = new CompletableFuture<>();
2539        final FailingConsumer r = new FailingConsumer();
2540        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2541
2542        g.complete(v2);
2543        checkCompletedWithWrappedCFException(h);
2544        f.complete(v1);
2565          checkCompletedNormally(f, v1);
2566 <        checkCompletedNormally(g, v2);
2566 >        checkCompletedExceptionally(g, ex);
2567      }}
2568  
2569      /**
2570       * acceptEither result completes exceptionally if either source cancelled
2571       */
2572 <    public void testAcceptEither_sourceCancelled1() {
2553 <        for (ExecutionMode m : ExecutionMode.values())
2554 <        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2555 <        for (Integer v1 : new Integer[] { 1, null })
2556 <    {
2557 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
2558 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
2559 <        final IncAction r = new IncAction();
2560 <        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2561 <
2562 <        assertTrue(f.cancel(mayInterruptIfRunning));
2563 <        checkCompletedWithWrappedCancellationException(h);
2564 <        g.complete(v1);
2565 <
2566 <        checkCancelled(f);
2567 <        assertEquals(0, r.invocationCount);
2568 <        checkCompletedNormally(g, v1);
2569 <        checkCompletedWithWrappedCancellationException(h);
2570 <    }}
2571 <
2572 <    public void testAcceptEither_sourceCancelled2() {
2572 >    public void testAcceptEither_sourceCancelled() {
2573          for (ExecutionMode m : ExecutionMode.values())
2574          for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2575          for (Integer v1 : new Integer[] { 1, null })
2576      {
2577          final CompletableFuture<Integer> f = new CompletableFuture<>();
2578          final CompletableFuture<Integer> g = new CompletableFuture<>();
2579 <        final IncAction r = new IncAction();
2580 <        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2579 >        final NoopConsumer[] rs = new NoopConsumer[6];
2580 >        for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2581  
2582 <        assertTrue(g.cancel(mayInterruptIfRunning));
2583 <        checkCompletedWithWrappedCancellationException(h);
2584 <        f.complete(v1);
2585 <
2586 <        checkCancelled(g);
2587 <        assertEquals(0, r.invocationCount);
2588 <        checkCompletedNormally(f, v1);
2589 <        checkCompletedWithWrappedCancellationException(h);
2590 <    }}
2582 >        final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2583 >        final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2584 >        checkIncomplete(h0);
2585 >        checkIncomplete(h1);
2586 >        rs[0].assertNotInvoked();
2587 >        rs[1].assertNotInvoked();
2588 >        f.cancel(mayInterruptIfRunning);
2589 >        checkCompletedWithWrappedCancellationException(h0);
2590 >        checkCompletedWithWrappedCancellationException(h1);
2591 >        final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2592 >        final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2593 >        checkCompletedWithWrappedCancellationException(h2);
2594 >        checkCompletedWithWrappedCancellationException(h3);
2595  
2596 <    public void testAcceptEither_sourceCancelled3() {
2593 <        for (ExecutionMode m : ExecutionMode.values())
2594 <        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2595 <        for (Integer v1 : new Integer[] { 1, null })
2596 <    {
2597 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
2598 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
2599 <        final IncAction r = new IncAction();
2600 <
2601 <        assertTrue(g.cancel(mayInterruptIfRunning));
2602 <        f.complete(v1);
2603 <        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2596 >        g.complete(v1);
2597  
2598 <        // unspecified behavior
2599 <        Integer v;
2598 >        // unspecified behavior - both source completions available
2599 >        final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2600 >        final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2601          try {
2602 <            assertNull(h.join());
2603 <            assertEquals(1, r.invocationCount);
2610 <            assertEquals(inc(v1), r.value);
2602 >            assertNull(h4.join());
2603 >            rs[4].assertValue(v1);
2604          } catch (CompletionException ok) {
2605 <            checkCompletedWithWrappedCancellationException(h);
2606 <            assertEquals(0, r.invocationCount);
2605 >            checkCompletedWithWrappedCancellationException(h4);
2606 >            rs[4].assertNotInvoked();
2607          }
2615
2616        checkCancelled(g);
2617        checkCompletedNormally(f, v1);
2618    }}
2619
2620    public void testAcceptEither_sourceCancelled4() {
2621        for (ExecutionMode m : ExecutionMode.values())
2622        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2623        for (Integer v1 : new Integer[] { 1, null })
2624    {
2625        final CompletableFuture<Integer> f = new CompletableFuture<>();
2626        final CompletableFuture<Integer> g = new CompletableFuture<>();
2627        final IncAction r = new IncAction();
2628
2629        assertTrue(f.cancel(mayInterruptIfRunning));
2630        g.complete(v1);
2631        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2632
2633        // unspecified behavior
2634        Integer v;
2608          try {
2609 <            assertNull(h.join());
2610 <            assertEquals(1, r.invocationCount);
2638 <            assertEquals(inc(v1), r.value);
2609 >            assertNull(h5.join());
2610 >            rs[5].assertValue(v1);
2611          } catch (CompletionException ok) {
2612 <            checkCompletedWithWrappedCancellationException(h);
2613 <            assertEquals(0, r.invocationCount);
2612 >            checkCompletedWithWrappedCancellationException(h5);
2613 >            rs[5].assertNotInvoked();
2614          }
2615  
2616          checkCancelled(f);
2617          checkCompletedNormally(g, v1);
2618 +        checkCompletedWithWrappedCancellationException(h0);
2619 +        checkCompletedWithWrappedCancellationException(h1);
2620 +        checkCompletedWithWrappedCancellationException(h2);
2621 +        checkCompletedWithWrappedCancellationException(h3);
2622 +        for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2623      }}
2624  
2625      /**
2626 <     * runAfterEither result completes normally after normal completion
2650 <     * of either source
2626 >     * acceptEither result completes exceptionally if action does
2627       */
2628 <    public void testRunAfterEither_normalCompletion1() {
2628 >    public void testAcceptEither_actionFailed() {
2629          for (ExecutionMode m : ExecutionMode.values())
2630          for (Integer v1 : new Integer[] { 1, null })
2631          for (Integer v2 : new Integer[] { 2, null })
2632      {
2633          final CompletableFuture<Integer> f = new CompletableFuture<>();
2634          final CompletableFuture<Integer> g = new CompletableFuture<>();
2635 <        final Noop r = new Noop();
2636 <        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2635 >        final FailingConsumer[] rs = new FailingConsumer[6];
2636 >        for (int i = 0; i < rs.length; i++) rs[i] = new FailingConsumer(m);
2637  
2638 +        final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2639 +        final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2640          f.complete(v1);
2641 <        checkCompletedNormally(h, null);
2642 <        assertEquals(1, r.invocationCount);
2641 >        final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2642 >        final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2643 >        checkCompletedWithWrappedCFException(h0);
2644 >        checkCompletedWithWrappedCFException(h1);
2645 >        checkCompletedWithWrappedCFException(h2);
2646 >        checkCompletedWithWrappedCFException(h3);
2647 >        for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2648 >
2649          g.complete(v2);
2650  
2651 <        checkCompletedNormally(f, v1);
2652 <        checkCompletedNormally(g, v2);
2653 <        checkCompletedNormally(h, null);
2670 <        assertEquals(1, r.invocationCount);
2671 <    }}
2651 >        // unspecified behavior - both source completions available
2652 >        final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2653 >        final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2654  
2655 <    public void testRunAfterEither_normalCompletion2() {
2656 <        for (ExecutionMode m : ExecutionMode.values())
2657 <        for (Integer v1 : new Integer[] { 1, null })
2658 <        for (Integer v2 : new Integer[] { 2, null })
2659 <    {
2660 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
2679 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
2680 <        final Noop r = new Noop();
2681 <        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2682 <
2683 <        g.complete(v2);
2684 <        checkCompletedNormally(h, null);
2685 <        assertEquals(1, r.invocationCount);
2686 <        f.complete(v1);
2655 >        checkCompletedWithWrappedCFException(h4);
2656 >        assertTrue(Objects.equals(v1, rs[4].value) ||
2657 >                   Objects.equals(v2, rs[4].value));
2658 >        checkCompletedWithWrappedCFException(h5);
2659 >        assertTrue(Objects.equals(v1, rs[5].value) ||
2660 >                   Objects.equals(v2, rs[5].value));
2661  
2662          checkCompletedNormally(f, v1);
2663          checkCompletedNormally(g, v2);
2664 <        checkCompletedNormally(h, null);
2691 <        assertEquals(1, r.invocationCount);
2692 <        }}
2664 >    }}
2665  
2666 <    public void testRunAfterEither_normalCompletion3() {
2666 >    /**
2667 >     * runAfterEither result completes normally after normal completion
2668 >     * of either source
2669 >     */
2670 >    public void testRunAfterEither_normalCompletion() {
2671          for (ExecutionMode m : ExecutionMode.values())
2672          for (Integer v1 : new Integer[] { 1, null })
2673          for (Integer v2 : new Integer[] { 2, null })
2674      {
2675          final CompletableFuture<Integer> f = new CompletableFuture<>();
2676          final CompletableFuture<Integer> g = new CompletableFuture<>();
2677 <        final Noop r = new Noop();
2677 >        final Noop[] rs = new Noop[6];
2678 >        for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2679  
2680 +        final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2681 +        final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2682 +        checkIncomplete(h0);
2683 +        checkIncomplete(h1);
2684 +        rs[0].assertNotInvoked();
2685 +        rs[1].assertNotInvoked();
2686          f.complete(v1);
2687 +        checkCompletedNormally(h0, null);
2688 +        checkCompletedNormally(h1, null);
2689 +        rs[0].assertInvoked();
2690 +        rs[1].assertInvoked();
2691 +        final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2692 +        final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2693 +        checkCompletedNormally(h2, null);
2694 +        checkCompletedNormally(h3, null);
2695 +        rs[2].assertInvoked();
2696 +        rs[3].assertInvoked();
2697 +
2698          g.complete(v2);
2705        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2699  
2700 <        checkCompletedNormally(h, null);
2700 >        final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2701 >        final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2702 >
2703          checkCompletedNormally(f, v1);
2704          checkCompletedNormally(g, v2);
2705 <        assertEquals(1, r.invocationCount);
2705 >        checkCompletedNormally(h0, null);
2706 >        checkCompletedNormally(h1, null);
2707 >        checkCompletedNormally(h2, null);
2708 >        checkCompletedNormally(h3, null);
2709 >        checkCompletedNormally(h4, null);
2710 >        checkCompletedNormally(h5, null);
2711 >        for (int i = 0; i < 6; i++) rs[i].assertInvoked();
2712      }}
2713  
2714      /**
2715       * runAfterEither result completes exceptionally after exceptional
2716       * completion of either source
2717       */
2718 <    public void testRunAfterEither_exceptionalCompletion1() {
2718 >    public void testRunAfterEither_exceptionalCompletion() {
2719          for (ExecutionMode m : ExecutionMode.values())
2720          for (Integer v1 : new Integer[] { 1, null })
2721      {
2722          final CompletableFuture<Integer> f = new CompletableFuture<>();
2723          final CompletableFuture<Integer> g = new CompletableFuture<>();
2723        final Noop r = new Noop();
2724        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2724          final CFException ex = new CFException();
2725 +        final Noop[] rs = new Noop[6];
2726 +        for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2727  
2728 <        f.completeExceptionally(ex);
2729 <        checkCompletedWithWrappedCFException(h, ex);
2730 <        g.complete(v1);
2728 >        final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2729 >        final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2730 >        checkIncomplete(h0);
2731 >        checkIncomplete(h1);
2732 >        rs[0].assertNotInvoked();
2733 >        rs[1].assertNotInvoked();
2734 >        assertTrue(f.completeExceptionally(ex));
2735 >        checkCompletedWithWrappedException(h0, ex);
2736 >        checkCompletedWithWrappedException(h1, ex);
2737 >        final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2738 >        final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2739 >        checkCompletedWithWrappedException(h2, ex);
2740 >        checkCompletedWithWrappedException(h3, ex);
2741  
2742 <        assertEquals(0, r.invocationCount);
2732 <        checkCompletedNormally(g, v1);
2733 <        checkCompletedWithWrappedCFException(f, ex);
2734 <        checkCompletedWithWrappedCFException(h, ex);
2735 <    }}
2742 >        assertTrue(g.complete(v1));
2743  
2744 <    public void testRunAfterEither_exceptionalCompletion2() {
2745 <        for (ExecutionMode m : ExecutionMode.values())
2746 <        for (Integer v1 : new Integer[] { 1, null })
2740 <    {
2741 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
2742 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
2743 <        final Noop r = new Noop();
2744 <        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2745 <        final CFException ex = new CFException();
2746 <
2747 <        g.completeExceptionally(ex);
2748 <        checkCompletedWithWrappedCFException(h, ex);
2749 <        f.complete(v1);
2750 <
2751 <        assertEquals(0, r.invocationCount);
2752 <        checkCompletedNormally(f, v1);
2753 <        checkCompletedWithWrappedCFException(g, ex);
2754 <        checkCompletedWithWrappedCFException(h, ex);
2755 <    }}
2756 <
2757 <    public void testRunAfterEither_exceptionalCompletion3() {
2758 <        for (ExecutionMode m : ExecutionMode.values())
2759 <        for (Integer v1 : new Integer[] { 1, null })
2760 <    {
2761 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
2762 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
2763 <        final Noop r = new Noop();
2764 <        final CFException ex = new CFException();
2765 <
2766 <        g.completeExceptionally(ex);
2767 <        f.complete(v1);
2768 <        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2769 <
2770 <        // unspecified behavior
2771 <        Integer v;
2744 >        // unspecified behavior - both source completions available
2745 >        final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2746 >        final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2747          try {
2748 <            assertNull(h.join());
2749 <            assertEquals(1, r.invocationCount);
2748 >            assertNull(h4.join());
2749 >            rs[4].assertInvoked();
2750          } catch (CompletionException ok) {
2751 <            checkCompletedWithWrappedCFException(h, ex);
2752 <            assertEquals(0, r.invocationCount);
2751 >            checkCompletedWithWrappedException(h4, ex);
2752 >            rs[4].assertNotInvoked();
2753          }
2779
2780        checkCompletedWithWrappedCFException(g, ex);
2781        checkCompletedNormally(f, v1);
2782    }}
2783
2784    public void testRunAfterEither_exceptionalCompletion4() {
2785        for (ExecutionMode m : ExecutionMode.values())
2786        for (Integer v1 : new Integer[] { 1, null })
2787    {
2788        final CompletableFuture<Integer> f = new CompletableFuture<>();
2789        final CompletableFuture<Integer> g = new CompletableFuture<>();
2790        final Noop r = new Noop();
2791        final CFException ex = new CFException();
2792
2793        f.completeExceptionally(ex);
2794        g.complete(v1);
2795        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2796
2797        // unspecified behavior
2798        Integer v;
2754          try {
2755 <            assertNull(h.join());
2756 <            assertEquals(1, r.invocationCount);
2755 >            assertNull(h5.join());
2756 >            rs[5].assertInvoked();
2757          } catch (CompletionException ok) {
2758 <            checkCompletedWithWrappedCFException(h, ex);
2759 <            assertEquals(0, r.invocationCount);
2758 >            checkCompletedWithWrappedException(h5, ex);
2759 >            rs[5].assertNotInvoked();
2760          }
2761  
2762 <        checkCompletedWithWrappedCFException(f, ex);
2762 >        checkCompletedExceptionally(f, ex);
2763          checkCompletedNormally(g, v1);
2764 +        checkCompletedWithWrappedException(h0, ex);
2765 +        checkCompletedWithWrappedException(h1, ex);
2766 +        checkCompletedWithWrappedException(h2, ex);
2767 +        checkCompletedWithWrappedException(h3, ex);
2768 +        checkCompletedWithWrappedException(h4, ex);
2769 +        for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2770      }}
2771  
2772 <    /**
2812 <     * runAfterEither result completes exceptionally if action does
2813 <     */
2814 <    public void testRunAfterEither_actionFailed1() {
2772 >    public void testRunAfterEither_exceptionalCompletion2() {
2773          for (ExecutionMode m : ExecutionMode.values())
2774 +        for (boolean fFirst : new boolean[] { true, false })
2775          for (Integer v1 : new Integer[] { 1, null })
2817        for (Integer v2 : new Integer[] { 2, null })
2776      {
2777          final CompletableFuture<Integer> f = new CompletableFuture<>();
2778          final CompletableFuture<Integer> g = new CompletableFuture<>();
2779 <        final FailingRunnable r = new FailingRunnable();
2780 <        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2779 >        final CFException ex = new CFException();
2780 >        final Noop[] rs = new Noop[6];
2781 >        for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2782  
2783 <        f.complete(v1);
2784 <        checkCompletedWithWrappedCFException(h);
2785 <        g.complete(v2);
2786 <        checkCompletedNormally(f, v1);
2787 <        checkCompletedNormally(g, v2);
2788 <    }}
2783 >        final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2784 >        final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2785 >        assertTrue( fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2786 >        assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2787 >        final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2788 >        final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2789  
2790 <    public void testRunAfterEither_actionFailed2() {
2791 <        for (ExecutionMode m : ExecutionMode.values())
2792 <        for (Integer v1 : new Integer[] { 1, null })
2793 <        for (Integer v2 : new Integer[] { 2, null })
2794 <    {
2795 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
2796 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
2797 <        final FailingRunnable r = new FailingRunnable();
2798 <        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2790 >        // unspecified behavior - both source completions available
2791 >        try {
2792 >            assertEquals(null, h0.join());
2793 >            rs[0].assertInvoked();
2794 >        } catch (CompletionException ok) {
2795 >            checkCompletedWithWrappedException(h0, ex);
2796 >            rs[0].assertNotInvoked();
2797 >        }
2798 >        try {
2799 >            assertEquals(null, h1.join());
2800 >            rs[1].assertInvoked();
2801 >        } catch (CompletionException ok) {
2802 >            checkCompletedWithWrappedException(h1, ex);
2803 >            rs[1].assertNotInvoked();
2804 >        }
2805 >        try {
2806 >            assertEquals(null, h2.join());
2807 >            rs[2].assertInvoked();
2808 >        } catch (CompletionException ok) {
2809 >            checkCompletedWithWrappedException(h2, ex);
2810 >            rs[2].assertNotInvoked();
2811 >        }
2812 >        try {
2813 >            assertEquals(null, h3.join());
2814 >            rs[3].assertInvoked();
2815 >        } catch (CompletionException ok) {
2816 >            checkCompletedWithWrappedException(h3, ex);
2817 >            rs[3].assertNotInvoked();
2818 >        }
2819  
2841        g.complete(v2);
2842        checkCompletedWithWrappedCFException(h);
2843        f.complete(v1);
2820          checkCompletedNormally(f, v1);
2821 <        checkCompletedNormally(g, v2);
2821 >        checkCompletedExceptionally(g, ex);
2822      }}
2823  
2824      /**
2825       * runAfterEither result completes exceptionally if either source cancelled
2826       */
2827 <    public void testRunAfterEither_sourceCancelled1() {
2827 >    public void testRunAfterEither_sourceCancelled() {
2828          for (ExecutionMode m : ExecutionMode.values())
2829          for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2830          for (Integer v1 : new Integer[] { 1, null })
2831      {
2832          final CompletableFuture<Integer> f = new CompletableFuture<>();
2833          final CompletableFuture<Integer> g = new CompletableFuture<>();
2834 <        final Noop r = new Noop();
2835 <        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2834 >        final Noop[] rs = new Noop[6];
2835 >        for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2836  
2837 <        assertTrue(f.cancel(mayInterruptIfRunning));
2838 <        checkCompletedWithWrappedCancellationException(h);
2839 <        g.complete(v1);
2840 <
2841 <        checkCancelled(f);
2842 <        assertEquals(0, r.invocationCount);
2843 <        checkCompletedNormally(g, v1);
2844 <        checkCompletedWithWrappedCancellationException(h);
2845 <    }}
2837 >        final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2838 >        final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2839 >        checkIncomplete(h0);
2840 >        checkIncomplete(h1);
2841 >        rs[0].assertNotInvoked();
2842 >        rs[1].assertNotInvoked();
2843 >        f.cancel(mayInterruptIfRunning);
2844 >        checkCompletedWithWrappedCancellationException(h0);
2845 >        checkCompletedWithWrappedCancellationException(h1);
2846 >        final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2847 >        final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2848 >        checkCompletedWithWrappedCancellationException(h2);
2849 >        checkCompletedWithWrappedCancellationException(h3);
2850  
2851 <    public void testRunAfterEither_sourceCancelled2() {
2872 <        for (ExecutionMode m : ExecutionMode.values())
2873 <        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2874 <        for (Integer v1 : new Integer[] { 1, null })
2875 <    {
2876 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
2877 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
2878 <        final Noop r = new Noop();
2879 <        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2851 >        assertTrue(g.complete(v1));
2852  
2853 <        assertTrue(g.cancel(mayInterruptIfRunning));
2854 <        checkCompletedWithWrappedCancellationException(h);
2855 <        f.complete(v1);
2856 <
2857 <        checkCancelled(g);
2858 <        assertEquals(0, r.invocationCount);
2859 <        checkCompletedNormally(f, v1);
2860 <        checkCompletedWithWrappedCancellationException(h);
2861 <    }}
2862 <
2891 <    public void testRunAfterEither_sourceCancelled3() {
2892 <        for (ExecutionMode m : ExecutionMode.values())
2893 <        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2894 <        for (Integer v1 : new Integer[] { 1, null })
2895 <    {
2896 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
2897 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
2898 <        final Noop r = new Noop();
2899 <
2900 <        assertTrue(g.cancel(mayInterruptIfRunning));
2901 <        f.complete(v1);
2902 <        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2903 <
2904 <        // unspecified behavior
2905 <        Integer v;
2853 >        // unspecified behavior - both source completions available
2854 >        final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2855 >        final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2856 >        try {
2857 >            assertNull(h4.join());
2858 >            rs[4].assertInvoked();
2859 >        } catch (CompletionException ok) {
2860 >            checkCompletedWithWrappedCancellationException(h4);
2861 >            rs[4].assertNotInvoked();
2862 >        }
2863          try {
2864 <            assertNull(h.join());
2865 <            assertEquals(1, r.invocationCount);
2864 >            assertNull(h5.join());
2865 >            rs[5].assertInvoked();
2866          } catch (CompletionException ok) {
2867 <            checkCompletedWithWrappedCancellationException(h);
2868 <            assertEquals(0, r.invocationCount);
2867 >            checkCompletedWithWrappedCancellationException(h5);
2868 >            rs[5].assertNotInvoked();
2869          }
2870  
2871 <        checkCancelled(g);
2872 <        checkCompletedNormally(f, v1);
2871 >        checkCancelled(f);
2872 >        checkCompletedNormally(g, v1);
2873 >        checkCompletedWithWrappedCancellationException(h0);
2874 >        checkCompletedWithWrappedCancellationException(h1);
2875 >        checkCompletedWithWrappedCancellationException(h2);
2876 >        checkCompletedWithWrappedCancellationException(h3);
2877 >        for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2878      }}
2879  
2880 <    public void testRunAfterEither_sourceCancelled4() {
2880 >    /**
2881 >     * runAfterEither result completes exceptionally if action does
2882 >     */
2883 >    public void testRunAfterEither_actionFailed() {
2884          for (ExecutionMode m : ExecutionMode.values())
2920        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2885          for (Integer v1 : new Integer[] { 1, null })
2886 +        for (Integer v2 : new Integer[] { 2, null })
2887      {
2888          final CompletableFuture<Integer> f = new CompletableFuture<>();
2889          final CompletableFuture<Integer> g = new CompletableFuture<>();
2890 <        final Noop r = new Noop();
2890 >        final FailingRunnable[] rs = new FailingRunnable[6];
2891 >        for (int i = 0; i < rs.length; i++) rs[i] = new FailingRunnable(m);
2892  
2893 <        assertTrue(f.cancel(mayInterruptIfRunning));
2894 <        g.complete(v1);
2895 <        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2893 >        final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2894 >        final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2895 >        assertTrue(f.complete(v1));
2896 >        final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2897 >        final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2898 >        checkCompletedWithWrappedCFException(h0);
2899 >        checkCompletedWithWrappedCFException(h1);
2900 >        checkCompletedWithWrappedCFException(h2);
2901 >        checkCompletedWithWrappedCFException(h3);
2902 >        for (int i = 0; i < 4; i++) rs[i].assertInvoked();
2903 >        assertTrue(g.complete(v2));
2904 >        final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2905 >        final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2906 >        checkCompletedWithWrappedCFException(h4);
2907 >        checkCompletedWithWrappedCFException(h5);
2908  
2909 <        // unspecified behavior
2910 <        Integer v;
2911 <        try {
2934 <            assertNull(h.join());
2935 <            assertEquals(1, r.invocationCount);
2936 <        } catch (CompletionException ok) {
2937 <            checkCompletedWithWrappedCancellationException(h);
2938 <            assertEquals(0, r.invocationCount);
2939 <        }
2940 <
2941 <        checkCancelled(f);
2942 <        checkCompletedNormally(g, v1);
2909 >        checkCompletedNormally(f, v1);
2910 >        checkCompletedNormally(g, v2);
2911 >        for (int i = 0; i < 6; i++) rs[i].assertInvoked();
2912      }}
2913  
2914      /**
# Line 2951 | Line 2920 | public class CompletableFutureTest exten
2920          for (Integer v1 : new Integer[] { 1, null })
2921      {
2922          final CompletableFuture<Integer> f = new CompletableFuture<>();
2923 <        final CompletableFutureInc r = new CompletableFutureInc();
2924 <        if (!createIncomplete) f.complete(v1);
2925 <        final CompletableFuture<Integer> g = f.thenCompose(r);
2926 <        if (createIncomplete) f.complete(v1);
2923 >        final CompletableFutureInc r = new CompletableFutureInc(m);
2924 >        if (!createIncomplete) assertTrue(f.complete(v1));
2925 >        final CompletableFuture<Integer> g = m.thenCompose(f, r);
2926 >        if (createIncomplete) assertTrue(f.complete(v1));
2927  
2928          checkCompletedNormally(g, inc(v1));
2929          checkCompletedNormally(f, v1);
2930 <        assertEquals(1, r.invocationCount);
2930 >        r.assertValue(v1);
2931      }}
2932  
2933      /**
# Line 2970 | Line 2939 | public class CompletableFutureTest exten
2939          for (boolean createIncomplete : new boolean[] { true, false })
2940      {
2941          final CFException ex = new CFException();
2942 <        final CompletableFutureInc r = new CompletableFutureInc();
2942 >        final CompletableFutureInc r = new CompletableFutureInc(m);
2943          final CompletableFuture<Integer> f = new CompletableFuture<>();
2944          if (!createIncomplete) f.completeExceptionally(ex);
2945 <        final CompletableFuture<Integer> g = f.thenCompose(r);
2945 >        final CompletableFuture<Integer> g = m.thenCompose(f, r);
2946          if (createIncomplete) f.completeExceptionally(ex);
2947  
2948 <        checkCompletedWithWrappedCFException(g, ex);
2949 <        checkCompletedWithWrappedCFException(f, ex);
2950 <        assertEquals(0, r.invocationCount);
2948 >        checkCompletedWithWrappedException(g, ex);
2949 >        checkCompletedExceptionally(f, ex);
2950 >        r.assertNotInvoked();
2951      }}
2952  
2953      /**
# Line 2991 | Line 2960 | public class CompletableFutureTest exten
2960      {
2961          final CompletableFuture<Integer> f = new CompletableFuture<>();
2962          final FailingCompletableFutureFunction r
2963 <            = new FailingCompletableFutureFunction();
2964 <        if (!createIncomplete) f.complete(v1);
2965 <        final CompletableFuture<Integer> g = f.thenCompose(r);
2966 <        if (createIncomplete) f.complete(v1);
2963 >            = new FailingCompletableFutureFunction(m);
2964 >        if (!createIncomplete) assertTrue(f.complete(v1));
2965 >        final CompletableFuture<Integer> g = m.thenCompose(f, r);
2966 >        if (createIncomplete) assertTrue(f.complete(v1));
2967  
2968          checkCompletedWithWrappedCFException(g);
2969          checkCompletedNormally(f, v1);
# Line 3009 | Line 2978 | public class CompletableFutureTest exten
2978          for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2979      {
2980          final CompletableFuture<Integer> f = new CompletableFuture<>();
2981 <        final CompletableFutureInc r = new CompletableFutureInc();
2981 >        final CompletableFutureInc r = new CompletableFutureInc(m);
2982          if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
2983 <        final CompletableFuture<Integer> g = f.thenCompose(r);
2983 >        final CompletableFuture<Integer> g = m.thenCompose(f, r);
2984          if (createIncomplete) {
2985              checkIncomplete(g);
2986              assertTrue(f.cancel(mayInterruptIfRunning));
# Line 3037 | Line 3006 | public class CompletableFutureTest exten
3006       * when all components complete normally
3007       */
3008      public void testAllOf_normal() throws Exception {
3009 <        for (int k = 1; k < 20; ++k) {
3010 <            CompletableFuture<Integer>[] fs = (CompletableFuture<Integer>[]) new CompletableFuture[k];
3011 <            for (int i = 0; i < k; ++i)
3009 >        for (int k = 1; k < 10; k++) {
3010 >            CompletableFuture<Integer>[] fs
3011 >                = (CompletableFuture<Integer>[]) new CompletableFuture[k];
3012 >            for (int i = 0; i < k; i++)
3013                  fs[i] = new CompletableFuture<>();
3014              CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3015 <            for (int i = 0; i < k; ++i) {
3015 >            for (int i = 0; i < k; i++) {
3016                  checkIncomplete(f);
3017                  checkIncomplete(CompletableFuture.allOf(fs));
3018                  fs[i].complete(one);
# Line 3052 | Line 3022 | public class CompletableFutureTest exten
3022          }
3023      }
3024  
3025 +    public void testAllOf_backwards() throws Exception {
3026 +        for (int k = 1; k < 10; k++) {
3027 +            CompletableFuture<Integer>[] fs
3028 +                = (CompletableFuture<Integer>[]) new CompletableFuture[k];
3029 +            for (int i = 0; i < k; i++)
3030 +                fs[i] = new CompletableFuture<>();
3031 +            CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3032 +            for (int i = k - 1; i >= 0; i--) {
3033 +                checkIncomplete(f);
3034 +                checkIncomplete(CompletableFuture.allOf(fs));
3035 +                fs[i].complete(one);
3036 +            }
3037 +            checkCompletedNormally(f, null);
3038 +            checkCompletedNormally(CompletableFuture.allOf(fs), null);
3039 +        }
3040 +    }
3041 +
3042 +    public void testAllOf_exceptional() throws Exception {
3043 +        for (int k = 1; k < 10; k++) {
3044 +            CompletableFuture<Integer>[] fs
3045 +                = (CompletableFuture<Integer>[]) new CompletableFuture[k];
3046 +            CFException ex = new CFException();
3047 +            for (int i = 0; i < k; i++)
3048 +                fs[i] = new CompletableFuture<>();
3049 +            CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3050 +            for (int i = 0; i < k; i++) {
3051 +                checkIncomplete(f);
3052 +                checkIncomplete(CompletableFuture.allOf(fs));
3053 +                if (i != k/2) {
3054 +                    fs[i].complete(i);
3055 +                    checkCompletedNormally(fs[i], i);
3056 +                } else {
3057 +                    fs[i].completeExceptionally(ex);
3058 +                    checkCompletedExceptionally(fs[i], ex);
3059 +                }
3060 +            }
3061 +            checkCompletedWithWrappedException(f, ex);
3062 +            checkCompletedWithWrappedException(CompletableFuture.allOf(fs), ex);
3063 +        }
3064 +    }
3065 +
3066      /**
3067       * anyOf(no component futures) returns an incomplete future
3068       */
3069      public void testAnyOf_empty() throws Exception {
3070 +        for (Integer v1 : new Integer[] { 1, null })
3071 +    {
3072          CompletableFuture<Object> f = CompletableFuture.anyOf();
3073          checkIncomplete(f);
3074 <    }
3074 >
3075 >        f.complete(v1);
3076 >        checkCompletedNormally(f, v1);
3077 >    }}
3078  
3079      /**
3080       * anyOf returns a future completed normally with a value when
3081       * a component future does
3082       */
3083      public void testAnyOf_normal() throws Exception {
3084 <        for (int k = 0; k < 10; ++k) {
3084 >        for (int k = 0; k < 10; k++) {
3085              CompletableFuture[] fs = new CompletableFuture[k];
3086 <            for (int i = 0; i < k; ++i)
3086 >            for (int i = 0; i < k; i++)
3087                  fs[i] = new CompletableFuture<>();
3088              CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3089              checkIncomplete(f);
3090 <            for (int i = 0; i < k; ++i) {
3091 <                fs[i].complete(one);
3092 <                checkCompletedNormally(f, one);
3093 <                checkCompletedNormally(CompletableFuture.anyOf(fs), one);
3090 >            for (int i = 0; i < k; i++) {
3091 >                fs[i].complete(i);
3092 >                checkCompletedNormally(f, 0);
3093 >                int x = (int) CompletableFuture.anyOf(fs).join();
3094 >                assertTrue(0 <= x && x <= i);
3095 >            }
3096 >        }
3097 >    }
3098 >    public void testAnyOf_normal_backwards() throws Exception {
3099 >        for (int k = 0; k < 10; k++) {
3100 >            CompletableFuture[] fs = new CompletableFuture[k];
3101 >            for (int i = 0; i < k; i++)
3102 >                fs[i] = new CompletableFuture<>();
3103 >            CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3104 >            checkIncomplete(f);
3105 >            for (int i = k - 1; i >= 0; i--) {
3106 >                fs[i].complete(i);
3107 >                checkCompletedNormally(f, k - 1);
3108 >                int x = (int) CompletableFuture.anyOf(fs).join();
3109 >                assertTrue(i <= x && x <= k - 1);
3110              }
3111          }
3112      }
# Line 3083 | Line 3115 | public class CompletableFutureTest exten
3115       * anyOf result completes exceptionally when any component does.
3116       */
3117      public void testAnyOf_exceptional() throws Exception {
3118 <        for (int k = 0; k < 10; ++k) {
3118 >        for (int k = 0; k < 10; k++) {
3119              CompletableFuture[] fs = new CompletableFuture[k];
3120 <            for (int i = 0; i < k; ++i)
3120 >            CFException[] exs = new CFException[k];
3121 >            for (int i = 0; i < k; i++) {
3122                  fs[i] = new CompletableFuture<>();
3123 +                exs[i] = new CFException();
3124 +            }
3125              CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3126              checkIncomplete(f);
3127 <            for (int i = 0; i < k; ++i) {
3128 <                fs[i].completeExceptionally(new CFException());
3129 <                checkCompletedWithWrappedCFException(f);
3127 >            for (int i = 0; i < k; i++) {
3128 >                fs[i].completeExceptionally(exs[i]);
3129 >                checkCompletedWithWrappedException(f, exs[0]);
3130 >                checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3131 >            }
3132 >        }
3133 >    }
3134 >
3135 >    public void testAnyOf_exceptional_backwards() throws Exception {
3136 >        for (int k = 0; k < 10; k++) {
3137 >            CompletableFuture[] fs = new CompletableFuture[k];
3138 >            CFException[] exs = new CFException[k];
3139 >            for (int i = 0; i < k; i++) {
3140 >                fs[i] = new CompletableFuture<>();
3141 >                exs[i] = new CFException();
3142 >            }
3143 >            CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3144 >            checkIncomplete(f);
3145 >            for (int i = k - 1; i >= 0; i--) {
3146 >                fs[i].completeExceptionally(exs[i]);
3147 >                checkCompletedWithWrappedException(f, exs[k - 1]);
3148                  checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3149              }
3150          }
# Line 3110 | Line 3163 | public class CompletableFutureTest exten
3163          Runnable[] throwingActions = {
3164              () -> CompletableFuture.supplyAsync(null),
3165              () -> CompletableFuture.supplyAsync(null, exec),
3166 <            () -> CompletableFuture.supplyAsync(supplyOne, null),
3166 >            () -> CompletableFuture.supplyAsync(new IntegerSupplier(ExecutionMode.SYNC, 42), null),
3167  
3168              () -> CompletableFuture.runAsync(null),
3169              () -> CompletableFuture.runAsync(null, exec),
# Line 3183 | Line 3236 | public class CompletableFutureTest exten
3236  
3237              () -> f.thenCompose(null),
3238              () -> f.thenComposeAsync(null),
3239 <            () -> f.thenComposeAsync(new CompletableFutureInc(), null),
3239 >            () -> f.thenComposeAsync(new CompletableFutureInc(ExecutionMode.EXECUTOR), null),
3240              () -> f.thenComposeAsync(null, exec),
3241  
3242              () -> f.exceptionally(null),
# Line 3215 | Line 3268 | public class CompletableFutureTest exten
3268          assertSame(f, f.toCompletableFuture());
3269      }
3270  
3271 <    /**
3219 <     * whenComplete action executes on normal completion, propagating
3220 <     * source result.
3221 <     */
3222 <    public void testWhenComplete_normalCompletion1() {
3223 <        for (ExecutionMode m : ExecutionMode.values())
3224 <        for (boolean createIncomplete : new boolean[] { true, false })
3225 <        for (Integer v1 : new Integer[] { 1, null })
3226 <    {
3227 <        final AtomicInteger a = new AtomicInteger(0);
3228 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
3229 <        if (!createIncomplete) f.complete(v1);
3230 <        final CompletableFuture<Integer> g = m.whenComplete
3231 <            (f,
3232 <             (Integer x, Throwable t) -> {
3233 <                threadAssertSame(x, v1);
3234 <                threadAssertNull(t);
3235 <                a.getAndIncrement();
3236 <            });
3237 <        if (createIncomplete) f.complete(v1);
3271 >    //--- tests of implementation details; not part of official tck ---
3272  
3273 <        checkCompletedNormally(g, v1);
3274 <        checkCompletedNormally(f, v1);
3275 <        assertEquals(1, a.get());
3276 <    }}
3273 >    Object resultOf(CompletableFuture<?> f) {
3274 >        try {
3275 >            java.lang.reflect.Field resultField
3276 >                = CompletableFuture.class.getDeclaredField("result");
3277 >            resultField.setAccessible(true);
3278 >            return resultField.get(f);
3279 >        } catch (Throwable t) { throw new AssertionError(t); }
3280 >    }
3281  
3282 <    /**
3283 <     * whenComplete action executes on exceptional completion, propagating
3246 <     * source result.
3247 <     */
3248 <    public void testWhenComplete_exceptionalCompletion() {
3282 >    public void testExceptionPropagationReusesResultObject() {
3283 >        if (!testImplementationDetails) return;
3284          for (ExecutionMode m : ExecutionMode.values())
3250        for (boolean createIncomplete : new boolean[] { true, false })
3251        for (Integer v1 : new Integer[] { 1, null })
3285      {
3253        final AtomicInteger a = new AtomicInteger(0);
3286          final CFException ex = new CFException();
3287 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
3288 <        if (!createIncomplete) f.completeExceptionally(ex);
3257 <        final CompletableFuture<Integer> g = m.whenComplete
3258 <            (f,
3259 <             (Integer x, Throwable t) -> {
3260 <                threadAssertNull(x);
3261 <                threadAssertSame(t, ex);
3262 <                a.getAndIncrement();
3263 <            });
3264 <        if (createIncomplete) f.completeExceptionally(ex);
3265 <        checkCompletedWithWrappedCFException(f, ex);
3266 <        checkCompletedWithWrappedCFException(g, ex);
3267 <        assertEquals(1, a.get());
3268 <    }}
3287 >        final CompletableFuture<Integer> v42 = CompletableFuture.completedFuture(42);
3288 >        final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3289  
3290 <    /**
3291 <     * whenComplete action executes on cancelled source, propagating
3272 <     * CancellationException.
3273 <     */
3274 <    public void testWhenComplete_sourceCancelled() {
3275 <        for (ExecutionMode m : ExecutionMode.values())
3276 <        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3277 <        for (boolean createIncomplete : new boolean[] { true, false })
3278 <    {
3279 <        final AtomicInteger a = new AtomicInteger(0);
3280 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
3281 <        if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
3282 <        final CompletableFuture<Integer> g = m.whenComplete
3283 <            (f,
3284 <             (Integer x, Throwable t) -> {
3285 <                threadAssertNull(x);
3286 <                threadAssertTrue(t instanceof CancellationException);
3287 <                a.getAndIncrement();
3288 <            });
3289 <        if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
3290 >        List<Function<CompletableFuture<Integer>, CompletableFuture<?>>> funs
3291 >            = new ArrayList<>();
3292  
3293 <        //try { g.join(); } catch (Throwable t) { throw new Error(t); }
3294 <        checkCompletedWithWrappedCancellationException(g);
3295 <        checkCancelled(f);
3294 <        assertEquals(1, a.get());
3295 <    }}
3293 >        funs.add((y) -> m.thenRun(y, new Noop(m)));
3294 >        funs.add((y) -> m.thenAccept(y, new NoopConsumer(m)));
3295 >        funs.add((y) -> m.thenApply(y, new IncFunction(m)));
3296  
3297 <    /**
3298 <     * If a whenComplete action throws an exception when triggered by
3299 <     * a normal completion, it completes exceptionally
3300 <     */
3301 <    public void testWhenComplete_actionFailed() {
3302 <        for (boolean createIncomplete : new boolean[] { true, false })
3303 <        for (ExecutionMode m : ExecutionMode.values())
3304 <        for (Integer v1 : new Integer[] { 1, null })
3305 <    {
3306 <        final AtomicInteger a = new AtomicInteger(0);
3307 <        final CFException ex = new CFException();
3308 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
3309 <        if (!createIncomplete) f.complete(v1);
3310 <        final CompletableFuture<Integer> g = m.whenComplete
3311 <            (f,
3312 <             (Integer x, Throwable t) -> {
3313 <                threadAssertSame(x, v1);
3314 <                threadAssertNull(t);
3315 <                a.getAndIncrement();
3316 <                throw ex;
3317 <            });
3318 <        if (createIncomplete) f.complete(v1);
3319 <        checkCompletedNormally(f, v1);
3320 <        checkCompletedWithWrappedCFException(g, ex);
3321 <        assertEquals(1, a.get());
3322 <    }}
3297 >        funs.add((y) -> m.runAfterEither(y, incomplete, new Noop(m)));
3298 >        funs.add((y) -> m.acceptEither(y, incomplete, new NoopConsumer(m)));
3299 >        funs.add((y) -> m.applyToEither(y, incomplete, new IncFunction(m)));
3300  
3301 <    /**
3302 <     * If a whenComplete action throws an exception when triggered by
3303 <     * a source completion that also throws an exception, the source
3327 <     * exception takes precedence.
3328 <     */
3329 <    public void testWhenComplete_actionFailedSourceFailed() {
3330 <        for (boolean createIncomplete : new boolean[] { true, false })
3331 <        for (ExecutionMode m : ExecutionMode.values())
3332 <        for (Integer v1 : new Integer[] { 1, null })
3333 <    {
3334 <        final AtomicInteger a = new AtomicInteger(0);
3335 <        final CFException ex1 = new CFException();
3336 <        final CFException ex2 = new CFException();
3337 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
3301 >        funs.add((y) -> m.runAfterBoth(y, v42, new Noop(m)));
3302 >        funs.add((y) -> m.thenAcceptBoth(y, v42, new SubtractAction(m)));
3303 >        funs.add((y) -> m.thenCombine(y, v42, new SubtractFunction(m)));
3304  
3305 <        if (!createIncomplete) f.completeExceptionally(ex1);
3340 <        final CompletableFuture<Integer> g = m.whenComplete
3341 <            (f,
3342 <             (Integer x, Throwable t) -> {
3343 <                threadAssertSame(t, ex1);
3344 <                threadAssertNull(x);
3345 <                a.getAndIncrement();
3346 <                throw ex2;
3347 <            });
3348 <        if (createIncomplete) f.completeExceptionally(ex1);
3305 >        funs.add((y) -> m.whenComplete(y, (Integer x, Throwable t) -> {}));
3306  
3307 <        checkCompletedWithWrappedCFException(f, ex1);
3308 <        checkCompletedWithWrappedCFException(g, ex1);
3309 <        assertEquals(1, a.get());
3307 >        funs.add((y) -> m.thenCompose(y, new CompletableFutureInc(m)));
3308 >
3309 >        funs.add((y) -> CompletableFuture.allOf(new CompletableFuture<?>[] {y, v42}));
3310 >        funs.add((y) -> CompletableFuture.anyOf(new CompletableFuture<?>[] {y, incomplete}));
3311 >
3312 >        for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3313 >                 fun : funs) {
3314 >            CompletableFuture<Integer> f = new CompletableFuture<>();
3315 >            f.completeExceptionally(ex);
3316 >            CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
3317 >            checkCompletedWithWrappedException(src, ex);
3318 >            CompletableFuture<?> dep = fun.apply(src);
3319 >            checkCompletedWithWrappedException(dep, ex);
3320 >            assertSame(resultOf(src), resultOf(dep));
3321 >        }
3322 >
3323 >        for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3324 >                 fun : funs) {
3325 >            CompletableFuture<Integer> f = new CompletableFuture<>();
3326 >            CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
3327 >            CompletableFuture<?> dep = fun.apply(src);
3328 >            f.completeExceptionally(ex);
3329 >            checkCompletedWithWrappedException(src, ex);
3330 >            checkCompletedWithWrappedException(dep, ex);
3331 >            assertSame(resultOf(src), resultOf(dep));
3332 >        }
3333 >
3334 >        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3335 >        for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3336 >                 fun : funs) {
3337 >            CompletableFuture<Integer> f = new CompletableFuture<>();
3338 >            f.cancel(mayInterruptIfRunning);
3339 >            checkCancelled(f);
3340 >            CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
3341 >            checkCompletedWithWrappedCancellationException(src);
3342 >            CompletableFuture<?> dep = fun.apply(src);
3343 >            checkCompletedWithWrappedCancellationException(dep);
3344 >            assertSame(resultOf(src), resultOf(dep));
3345 >        }
3346 >
3347 >        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3348 >        for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3349 >                 fun : funs) {
3350 >            CompletableFuture<Integer> f = new CompletableFuture<>();
3351 >            CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
3352 >            CompletableFuture<?> dep = fun.apply(src);
3353 >            f.cancel(mayInterruptIfRunning);
3354 >            checkCancelled(f);
3355 >            checkCompletedWithWrappedCancellationException(src);
3356 >            checkCompletedWithWrappedCancellationException(dep);
3357 >            assertSame(resultOf(src), resultOf(dep));
3358 >        }
3359      }}
3360  
3361   }

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