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Comparing jsr166/src/test/tck/CompletableFutureTest.java (file contents):
Revision 1.58 by jsr166, Mon Jun 2 23:10:08 2014 UTC vs.
Revision 1.92 by jsr166, Tue Jun 17 20:50:01 2014 UTC

# Line 105 | Line 105 | public class CompletableFutureTest exten
105          assertTrue(f.toString().contains("[Completed exceptionally]"));
106      }
107  
108 <    void checkCompletedWithWrappedCFException(CompletableFuture<?> f,
109 <                                              CFException ex) {
108 >    <U> void checkCompletedExceptionallyWithRootCause(CompletableFuture<U> f,
109 >                                                      Throwable ex) {
110          try {
111              f.get(LONG_DELAY_MS, MILLISECONDS);
112              shouldThrow();
# Line 131 | Line 131 | public class CompletableFutureTest exten
131          } catch (ExecutionException success) {
132              assertSame(ex, success.getCause());
133          } catch (Throwable fail) { threadUnexpectedException(fail); }
134 +
135          assertTrue(f.isDone());
136          assertFalse(f.isCancelled());
137          assertTrue(f.toString().contains("[Completed exceptionally]"));
138      }
139  
140 +    <U> void checkCompletedWithWrappedException(CompletableFuture<U> f,
141 +                                                Throwable ex) {
142 +        checkCompletedExceptionallyWithRootCause(f, ex);
143 +        try {
144 +            CompletableFuture<Throwable> spy = f.handle
145 +                ((U u, Throwable t) -> t);
146 +            assertTrue(spy.join() instanceof CompletionException);
147 +            assertSame(ex, spy.join().getCause());
148 +        } catch (Throwable fail) { threadUnexpectedException(fail); }
149 +    }
150 +
151 +    <U> void checkCompletedExceptionally(CompletableFuture<U> f, Throwable ex) {
152 +        checkCompletedExceptionallyWithRootCause(f, ex);
153 +        try {
154 +            CompletableFuture<Throwable> spy = f.handle
155 +                ((U u, Throwable t) -> t);
156 +            assertSame(ex, spy.join());
157 +        } catch (Throwable fail) { threadUnexpectedException(fail); }
158 +    }
159 +
160      void checkCancelled(CompletableFuture<?> f) {
161          try {
162              f.get(LONG_DELAY_MS, MILLISECONDS);
# Line 206 | Line 227 | public class CompletableFutureTest exten
227       * isCancelled, join, get, and getNow
228       */
229      public void testComplete() {
230 +        for (Integer v1 : new Integer[] { 1, null })
231 +    {
232          CompletableFuture<Integer> f = new CompletableFuture<>();
233          checkIncomplete(f);
234 <        f.complete(one);
235 <        checkCompletedNormally(f, one);
236 <    }
234 >        assertTrue(f.complete(v1));
235 >        assertFalse(f.complete(v1));
236 >        checkCompletedNormally(f, v1);
237 >    }}
238  
239      /**
240       * completeExceptionally completes exceptionally, as indicated by
# Line 218 | Line 242 | public class CompletableFutureTest exten
242       */
243      public void testCompleteExceptionally() {
244          CompletableFuture<Integer> f = new CompletableFuture<>();
245 +        CFException ex = new CFException();
246          checkIncomplete(f);
247 <        f.completeExceptionally(new CFException());
248 <        checkCompletedWithWrappedCFException(f);
247 >        f.completeExceptionally(ex);
248 >        checkCompletedExceptionally(f, ex);
249      }
250  
251      /**
# Line 228 | Line 253 | public class CompletableFutureTest exten
253       * methods isDone, isCancelled, join, get, and getNow
254       */
255      public void testCancel() {
256 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
257 +    {
258          CompletableFuture<Integer> f = new CompletableFuture<>();
259          checkIncomplete(f);
260          assertTrue(f.cancel(true));
261 +        assertTrue(f.cancel(true));
262          checkCancelled(f);
263 <    }
263 >    }}
264  
265      /**
266       * obtrudeValue forces completion with given value
# Line 240 | Line 268 | public class CompletableFutureTest exten
268      public void testObtrudeValue() {
269          CompletableFuture<Integer> f = new CompletableFuture<>();
270          checkIncomplete(f);
271 <        f.complete(one);
271 >        assertTrue(f.complete(one));
272          checkCompletedNormally(f, one);
273          f.obtrudeValue(three);
274          checkCompletedNormally(f, three);
# Line 261 | Line 289 | public class CompletableFutureTest exten
289       * obtrudeException forces completion with given exception
290       */
291      public void testObtrudeException() {
292 <        CompletableFuture<Integer> f = new CompletableFuture<>();
293 <        checkIncomplete(f);
294 <        f.complete(one);
295 <        checkCompletedNormally(f, one);
296 <        f.obtrudeException(new CFException());
269 <        checkCompletedWithWrappedCFException(f);
292 >        for (Integer v1 : new Integer[] { 1, null })
293 >    {
294 >        CFException ex;
295 >        CompletableFuture<Integer> f;
296 >
297          f = new CompletableFuture<>();
298 <        f.obtrudeException(new CFException());
299 <        checkCompletedWithWrappedCFException(f);
298 >        assertTrue(f.complete(v1));
299 >        for (int i = 0; i < 2; i++) {
300 >            f.obtrudeException(ex = new CFException());
301 >            checkCompletedExceptionally(f, ex);
302 >        }
303 >
304 >        f = new CompletableFuture<>();
305 >        for (int i = 0; i < 2; i++) {
306 >            f.obtrudeException(ex = new CFException());
307 >            checkCompletedExceptionally(f, ex);
308 >        }
309 >
310          f = new CompletableFuture<>();
311 +        f.completeExceptionally(ex = new CFException());
312 +        f.obtrudeValue(v1);
313 +        checkCompletedNormally(f, v1);
314 +        f.obtrudeException(ex = new CFException());
315 +        checkCompletedExceptionally(f, ex);
316          f.completeExceptionally(new CFException());
317 <        f.obtrudeValue(four);
318 <        checkCompletedNormally(f, four);
319 <        f.obtrudeException(new CFException());
320 <        checkCompletedWithWrappedCFException(f);
279 <    }
317 >        checkCompletedExceptionally(f, ex);
318 >        assertFalse(f.complete(v1));
319 >        checkCompletedExceptionally(f, ex);
320 >    }}
321  
322      /**
323       * getNumberOfDependents returns number of dependent tasks
324       */
325      public void testGetNumberOfDependents() {
326 +        for (ExecutionMode m : ExecutionMode.values())
327 +        for (Integer v1 : new Integer[] { 1, null })
328 +    {
329          CompletableFuture<Integer> f = new CompletableFuture<>();
330          assertEquals(0, f.getNumberOfDependents());
331 <        CompletableFuture g = f.thenRun(new Noop(ExecutionMode.DEFAULT));
331 >        final CompletableFuture<Void> g = m.thenRun(f, new Noop(m));
332          assertEquals(1, f.getNumberOfDependents());
333          assertEquals(0, g.getNumberOfDependents());
334 <        CompletableFuture h = f.thenRun(new Noop(ExecutionMode.DEFAULT));
334 >        final CompletableFuture<Void> h = m.thenRun(f, new Noop(m));
335          assertEquals(2, f.getNumberOfDependents());
336 <        f.complete(1);
336 >        assertEquals(0, h.getNumberOfDependents());
337 >        assertTrue(f.complete(v1));
338          checkCompletedNormally(g, null);
339 +        checkCompletedNormally(h, null);
340          assertEquals(0, f.getNumberOfDependents());
341          assertEquals(0, g.getNumberOfDependents());
342 <    }
342 >        assertEquals(0, h.getNumberOfDependents());
343 >    }}
344  
345      /**
346       * toString indicates current completion state
# Line 304 | Line 351 | public class CompletableFutureTest exten
351          f = new CompletableFuture<String>();
352          assertTrue(f.toString().contains("[Not completed]"));
353  
354 <        f.complete("foo");
354 >        assertTrue(f.complete("foo"));
355          assertTrue(f.toString().contains("[Completed normally]"));
356  
357          f = new CompletableFuture<String>();
358 <        f.completeExceptionally(new IndexOutOfBoundsException());
358 >        assertTrue(f.completeExceptionally(new IndexOutOfBoundsException()));
359          assertTrue(f.toString().contains("[Completed exceptionally]"));
360 +
361 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false }) {
362 +            f = new CompletableFuture<String>();
363 +            assertTrue(f.cancel(mayInterruptIfRunning));
364 +            assertTrue(f.toString().contains("[Completed exceptionally]"));
365 +        }
366      }
367  
368      /**
# Line 320 | Line 373 | public class CompletableFutureTest exten
373          checkCompletedNormally(f, "test");
374      }
375  
376 <    // Choose non-commutative actions for better coverage
377 <
378 <    // A non-commutative function that handles and produces null values as well.
379 <    static Integer subtract(Integer x, Integer y) {
380 <        return (x == null && y == null) ? null :
381 <            ((x == null) ? 42 : x.intValue())
382 <            - ((y == null) ? 99 : y.intValue());
376 >    abstract class CheckedAction {
377 >        int invocationCount = 0;
378 >        final ExecutionMode m;
379 >        CheckedAction(ExecutionMode m) { this.m = m; }
380 >        void invoked() {
381 >            m.checkExecutionMode();
382 >            assertEquals(0, invocationCount++);
383 >        }
384 >        void assertNotInvoked() { assertEquals(0, invocationCount); }
385 >        void assertInvoked() { assertEquals(1, invocationCount); }
386      }
387  
388 <    // A function that handles and produces null values as well.
389 <    static Integer inc(Integer x) {
390 <        return (x == null) ? null : x + 1;
388 >    abstract class CheckedIntegerAction extends CheckedAction {
389 >        Integer value;
390 >        CheckedIntegerAction(ExecutionMode m) { super(m); }
391 >        void assertValue(Integer expected) {
392 >            assertInvoked();
393 >            assertEquals(expected, value);
394 >        }
395      }
396  
397 <    static final class IntegerSupplier implements Supplier<Integer> {
398 <        final ExecutionMode m;
399 <        int invocationCount = 0;
397 >    class IntegerSupplier extends CheckedAction
398 >        implements Supplier<Integer>
399 >    {
400          final Integer value;
401          IntegerSupplier(ExecutionMode m, Integer value) {
402 <            this.m = m;
402 >            super(m);
403              this.value = value;
404          }
405          public Integer get() {
406 <            m.checkExecutionMode();
347 <            invocationCount++;
406 >            invoked();
407              return value;
408          }
409      }
410 <        
411 <    static final class IncAction implements Consumer<Integer> {
412 <        int invocationCount = 0;
413 <        Integer value;
410 >
411 >    // A function that handles and produces null values as well.
412 >    static Integer inc(Integer x) {
413 >        return (x == null) ? null : x + 1;
414 >    }
415 >
416 >    class NoopConsumer extends CheckedIntegerAction
417 >        implements Consumer<Integer>
418 >    {
419 >        NoopConsumer(ExecutionMode m) { super(m); }
420          public void accept(Integer x) {
421 <            invocationCount++;
422 <            value = inc(x);
421 >            invoked();
422 >            value = x;
423          }
424      }
425 <    static final class IncFunction implements Function<Integer,Integer> {
426 <        final ExecutionMode m;
427 <        int invocationCount = 0;
428 <        Integer value;
429 <        IncFunction(ExecutionMode m) { this.m = m; }
425 >
426 >    class IncFunction extends CheckedIntegerAction
427 >        implements Function<Integer,Integer>
428 >    {
429 >        IncFunction(ExecutionMode m) { super(m); }
430          public Integer apply(Integer x) {
431 <            m.checkExecutionMode();
367 <            invocationCount++;
431 >            invoked();
432              return value = inc(x);
433          }
434      }
435 <    static final class SubtractAction implements BiConsumer<Integer, Integer> {
436 <        final ExecutionMode m;
437 <        int invocationCount = 0;
438 <        Integer value;
439 <        // Check this action was invoked exactly once when result is computed.
440 <        SubtractAction(ExecutionMode m) { this.m = m; }
435 >
436 >    // Choose non-commutative actions for better coverage
437 >    // A non-commutative function that handles and produces null values as well.
438 >    static Integer subtract(Integer x, Integer y) {
439 >        return (x == null && y == null) ? null :
440 >            ((x == null) ? 42 : x.intValue())
441 >            - ((y == null) ? 99 : y.intValue());
442 >    }
443 >
444 >    class SubtractAction extends CheckedIntegerAction
445 >        implements BiConsumer<Integer, Integer>
446 >    {
447 >        SubtractAction(ExecutionMode m) { super(m); }
448          public void accept(Integer x, Integer y) {
449 <            m.checkExecutionMode();
379 <            invocationCount++;
449 >            invoked();
450              value = subtract(x, y);
451          }
452      }
453 <    static final class SubtractFunction implements BiFunction<Integer, Integer, Integer> {
454 <        final ExecutionMode m;
455 <        int invocationCount = 0;
456 <        Integer value;
457 <        // Check this action was invoked exactly once when result is computed.
388 <        SubtractFunction(ExecutionMode m) { this.m = m; }
453 >
454 >    class SubtractFunction extends CheckedIntegerAction
455 >        implements BiFunction<Integer, Integer, Integer>
456 >    {
457 >        SubtractFunction(ExecutionMode m) { super(m); }
458          public Integer apply(Integer x, Integer y) {
459 <            m.checkExecutionMode();
391 <            invocationCount++;
459 >            invoked();
460              return value = subtract(x, y);
461          }
462      }
463 <    static final class Noop implements Runnable {
464 <        final ExecutionMode m;
465 <        int invocationCount = 0;
398 <        Noop(ExecutionMode m) { this.m = m; }
463 >
464 >    class Noop extends CheckedAction implements Runnable {
465 >        Noop(ExecutionMode m) { super(m); }
466          public void run() {
467 <            m.checkExecutionMode();
401 <            invocationCount++;
467 >            invoked();
468          }
469      }
470  
471 <    static final class FailingSupplier implements Supplier<Integer> {
472 <        final ExecutionMode m;
473 <        int invocationCount = 0;
474 <        FailingSupplier(ExecutionMode m) { this.m = m; }
471 >    class FailingSupplier extends CheckedAction
472 >        implements Supplier<Integer>
473 >    {
474 >        FailingSupplier(ExecutionMode m) { super(m); }
475          public Integer get() {
476 <            m.checkExecutionMode();
411 <            invocationCount++;
476 >            invoked();
477              throw new CFException();
478          }
479      }
480 <    static final class FailingConsumer implements Consumer<Integer> {
481 <        final ExecutionMode m;
482 <        int invocationCount = 0;
483 <        FailingConsumer(ExecutionMode m) { this.m = m; }
480 >
481 >    class FailingConsumer extends CheckedIntegerAction
482 >        implements Consumer<Integer>
483 >    {
484 >        FailingConsumer(ExecutionMode m) { super(m); }
485          public void accept(Integer x) {
486 <            m.checkExecutionMode();
487 <            invocationCount++;
486 >            invoked();
487 >            value = x;
488              throw new CFException();
489          }
490      }
491 <    static final class FailingBiConsumer implements BiConsumer<Integer, Integer> {
492 <        final ExecutionMode m;
493 <        int invocationCount = 0;
494 <        FailingBiConsumer(ExecutionMode m) { this.m = m; }
491 >
492 >    class FailingBiConsumer extends CheckedIntegerAction
493 >        implements BiConsumer<Integer, Integer>
494 >    {
495 >        FailingBiConsumer(ExecutionMode m) { super(m); }
496          public void accept(Integer x, Integer y) {
497 <            m.checkExecutionMode();
498 <            invocationCount++;
497 >            invoked();
498 >            value = subtract(x, y);
499              throw new CFException();
500          }
501      }
502 <    static final class FailingFunction implements Function<Integer, Integer> {
503 <        final ExecutionMode m;
504 <        int invocationCount = 0;
505 <        FailingFunction(ExecutionMode m) { this.m = m; }
502 >
503 >    class FailingFunction extends CheckedIntegerAction
504 >        implements Function<Integer, Integer>
505 >    {
506 >        FailingFunction(ExecutionMode m) { super(m); }
507          public Integer apply(Integer x) {
508 <            m.checkExecutionMode();
509 <            invocationCount++;
508 >            invoked();
509 >            value = x;
510              throw new CFException();
511          }
512      }
513 <    static final class FailingBiFunction implements BiFunction<Integer, Integer, Integer> {
514 <        final ExecutionMode m;
515 <        int invocationCount = 0;
516 <        FailingBiFunction(ExecutionMode m) { this.m = m; }
513 >
514 >    class FailingBiFunction extends CheckedIntegerAction
515 >        implements BiFunction<Integer, Integer, Integer>
516 >    {
517 >        FailingBiFunction(ExecutionMode m) { super(m); }
518          public Integer apply(Integer x, Integer y) {
519 <            m.checkExecutionMode();
520 <            invocationCount++;
519 >            invoked();
520 >            value = subtract(x, y);
521              throw new CFException();
522          }
523      }
524 <    static final class FailingRunnable implements Runnable {
525 <        final ExecutionMode m;
526 <        int invocationCount = 0;
458 <        FailingRunnable(ExecutionMode m) { this.m = m; }
524 >
525 >    class FailingRunnable extends CheckedAction implements Runnable {
526 >        FailingRunnable(ExecutionMode m) { super(m); }
527          public void run() {
528 <            m.checkExecutionMode();
461 <            invocationCount++;
528 >            invoked();
529              throw new CFException();
530          }
531      }
532  
533 <    static final class CompletableFutureInc
534 <        implements Function<Integer, CompletableFuture<Integer>> {
535 <        final ExecutionMode m;
536 <        int invocationCount = 0;
537 <        CompletableFutureInc(ExecutionMode m) { this.m = m; }
533 >
534 >    class CompletableFutureInc extends CheckedIntegerAction
535 >        implements Function<Integer, CompletableFuture<Integer>>
536 >    {
537 >        CompletableFutureInc(ExecutionMode m) { super(m); }
538          public CompletableFuture<Integer> apply(Integer x) {
539 <            m.checkExecutionMode();
540 <            invocationCount++;
539 >            invoked();
540 >            value = x;
541              CompletableFuture<Integer> f = new CompletableFuture<>();
542 <            f.complete(inc(x));
542 >            assertTrue(f.complete(inc(x)));
543              return f;
544          }
545      }
546  
547 <    static final class FailingCompletableFutureFunction
548 <        implements Function<Integer, CompletableFuture<Integer>> {
549 <        final ExecutionMode m;
550 <        int invocationCount = 0;
484 <        FailingCompletableFutureFunction(ExecutionMode m) { this.m = m; }
547 >    class FailingCompletableFutureFunction extends CheckedIntegerAction
548 >        implements Function<Integer, CompletableFuture<Integer>>
549 >    {
550 >        FailingCompletableFutureFunction(ExecutionMode m) { super(m); }
551          public CompletableFuture<Integer> apply(Integer x) {
552 <            m.checkExecutionMode();
553 <            invocationCount++;
552 >            invoked();
553 >            value = x;
554              throw new CFException();
555          }
556      }
# Line 505 | Line 571 | public class CompletableFutureTest exten
571  
572      /**
573       * Permits the testing of parallel code for the 3 different
574 <     * execution modes without repeating all the testing code.
574 >     * execution modes without copy/pasting all the test methods.
575       */
576      enum ExecutionMode {
577          DEFAULT {
578              public void checkExecutionMode() {
579 +                assertFalse(ThreadExecutor.startedCurrentThread());
580                  assertNull(ForkJoinTask.getPool());
581              }
582              public CompletableFuture<Void> runAsync(Runnable a) {
# Line 780 | Line 847 | public class CompletableFutureTest exten
847      {
848          final AtomicInteger a = new AtomicInteger(0);
849          final CompletableFuture<Integer> f = new CompletableFuture<>();
850 <        if (!createIncomplete) f.complete(v1);
850 >        if (!createIncomplete) assertTrue(f.complete(v1));
851          final CompletableFuture<Integer> g = f.exceptionally
852              ((Throwable t) -> {
853                  // Should not be called
854                  a.getAndIncrement();
855                  throw new AssertionError();
856              });
857 <        if (createIncomplete) f.complete(v1);
857 >        if (createIncomplete) assertTrue(f.complete(v1));
858  
859          checkCompletedNormally(g, v1);
860          checkCompletedNormally(f, v1);
861          assertEquals(0, a.get());
862      }}
863  
797
864      /**
865       * exceptionally action completes with function value on source
866       * exception
# Line 838 | Line 904 | public class CompletableFutureTest exten
904              });
905          if (createIncomplete) f.completeExceptionally(ex1);
906  
907 <        checkCompletedWithWrappedCFException(g, ex2);
907 >        checkCompletedWithWrappedException(g, ex2);
908 >        assertEquals(1, a.get());
909 >    }}
910 >
911 >    /**
912 >     * whenComplete action executes on normal completion, propagating
913 >     * source result.
914 >     */
915 >    public void testWhenComplete_normalCompletion1() {
916 >        for (ExecutionMode m : ExecutionMode.values())
917 >        for (boolean createIncomplete : new boolean[] { true, false })
918 >        for (Integer v1 : new Integer[] { 1, null })
919 >    {
920 >        final AtomicInteger a = new AtomicInteger(0);
921 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
922 >        if (!createIncomplete) assertTrue(f.complete(v1));
923 >        final CompletableFuture<Integer> g = m.whenComplete
924 >            (f,
925 >             (Integer x, Throwable t) -> {
926 >                m.checkExecutionMode();
927 >                threadAssertSame(x, v1);
928 >                threadAssertNull(t);
929 >                a.getAndIncrement();
930 >            });
931 >        if (createIncomplete) assertTrue(f.complete(v1));
932 >
933 >        checkCompletedNormally(g, v1);
934 >        checkCompletedNormally(f, v1);
935 >        assertEquals(1, a.get());
936 >    }}
937 >
938 >    /**
939 >     * whenComplete action executes on exceptional completion, propagating
940 >     * source result.
941 >     */
942 >    public void testWhenComplete_exceptionalCompletion() {
943 >        for (ExecutionMode m : ExecutionMode.values())
944 >        for (boolean createIncomplete : new boolean[] { true, false })
945 >        for (Integer v1 : new Integer[] { 1, null })
946 >    {
947 >        final AtomicInteger a = new AtomicInteger(0);
948 >        final CFException ex = new CFException();
949 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
950 >        if (!createIncomplete) f.completeExceptionally(ex);
951 >        final CompletableFuture<Integer> g = m.whenComplete
952 >            (f,
953 >             (Integer x, Throwable t) -> {
954 >                m.checkExecutionMode();
955 >                threadAssertNull(x);
956 >                threadAssertSame(t, ex);
957 >                a.getAndIncrement();
958 >            });
959 >        if (createIncomplete) f.completeExceptionally(ex);
960 >
961 >        checkCompletedWithWrappedException(g, ex);
962 >        checkCompletedExceptionally(f, ex);
963 >        assertEquals(1, a.get());
964 >    }}
965 >
966 >    /**
967 >     * whenComplete action executes on cancelled source, propagating
968 >     * CancellationException.
969 >     */
970 >    public void testWhenComplete_sourceCancelled() {
971 >        for (ExecutionMode m : ExecutionMode.values())
972 >        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
973 >        for (boolean createIncomplete : new boolean[] { true, false })
974 >    {
975 >        final AtomicInteger a = new AtomicInteger(0);
976 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
977 >        if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
978 >        final CompletableFuture<Integer> g = m.whenComplete
979 >            (f,
980 >             (Integer x, Throwable t) -> {
981 >                m.checkExecutionMode();
982 >                threadAssertNull(x);
983 >                threadAssertTrue(t instanceof CancellationException);
984 >                a.getAndIncrement();
985 >            });
986 >        if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
987 >
988 >        checkCompletedWithWrappedCancellationException(g);
989 >        checkCancelled(f);
990 >        assertEquals(1, a.get());
991 >    }}
992 >
993 >    /**
994 >     * If a whenComplete action throws an exception when triggered by
995 >     * a normal completion, it completes exceptionally
996 >     */
997 >    public void testWhenComplete_actionFailed() {
998 >        for (boolean createIncomplete : new boolean[] { true, false })
999 >        for (ExecutionMode m : ExecutionMode.values())
1000 >        for (Integer v1 : new Integer[] { 1, null })
1001 >    {
1002 >        final AtomicInteger a = new AtomicInteger(0);
1003 >        final CFException ex = new CFException();
1004 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1005 >        if (!createIncomplete) assertTrue(f.complete(v1));
1006 >        final CompletableFuture<Integer> g = m.whenComplete
1007 >            (f,
1008 >             (Integer x, Throwable t) -> {
1009 >                m.checkExecutionMode();
1010 >                threadAssertSame(x, v1);
1011 >                threadAssertNull(t);
1012 >                a.getAndIncrement();
1013 >                throw ex;
1014 >            });
1015 >        if (createIncomplete) assertTrue(f.complete(v1));
1016 >
1017 >        checkCompletedWithWrappedException(g, ex);
1018 >        checkCompletedNormally(f, v1);
1019 >        assertEquals(1, a.get());
1020 >    }}
1021 >
1022 >    /**
1023 >     * If a whenComplete action throws an exception when triggered by
1024 >     * a source completion that also throws an exception, the source
1025 >     * exception takes precedence.
1026 >     */
1027 >    public void testWhenComplete_actionFailedSourceFailed() {
1028 >        for (boolean createIncomplete : new boolean[] { true, false })
1029 >        for (ExecutionMode m : ExecutionMode.values())
1030 >        for (Integer v1 : new Integer[] { 1, null })
1031 >    {
1032 >        final AtomicInteger a = new AtomicInteger(0);
1033 >        final CFException ex1 = new CFException();
1034 >        final CFException ex2 = new CFException();
1035 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1036 >
1037 >        if (!createIncomplete) f.completeExceptionally(ex1);
1038 >        final CompletableFuture<Integer> g = m.whenComplete
1039 >            (f,
1040 >             (Integer x, Throwable t) -> {
1041 >                m.checkExecutionMode();
1042 >                threadAssertSame(t, ex1);
1043 >                threadAssertNull(x);
1044 >                a.getAndIncrement();
1045 >                throw ex2;
1046 >            });
1047 >        if (createIncomplete) f.completeExceptionally(ex1);
1048 >
1049 >        checkCompletedWithWrappedException(g, ex1);
1050 >        checkCompletedExceptionally(f, ex1);
1051          assertEquals(1, a.get());
1052      }}
1053  
# Line 853 | Line 1062 | public class CompletableFutureTest exten
1062      {
1063          final CompletableFuture<Integer> f = new CompletableFuture<>();
1064          final AtomicInteger a = new AtomicInteger(0);
1065 <        if (!createIncomplete) f.complete(v1);
1065 >        if (!createIncomplete) assertTrue(f.complete(v1));
1066          final CompletableFuture<Integer> g = m.handle
1067              (f,
1068               (Integer x, Throwable t) -> {
# Line 863 | Line 1072 | public class CompletableFutureTest exten
1072                  a.getAndIncrement();
1073                  return inc(v1);
1074              });
1075 <        if (createIncomplete) f.complete(v1);
1075 >        if (createIncomplete) assertTrue(f.complete(v1));
1076  
1077          checkCompletedNormally(g, inc(v1));
1078          checkCompletedNormally(f, v1);
# Line 895 | Line 1104 | public class CompletableFutureTest exten
1104          if (createIncomplete) f.completeExceptionally(ex);
1105  
1106          checkCompletedNormally(g, v1);
1107 <        checkCompletedWithWrappedCFException(f, ex);
1107 >        checkCompletedExceptionally(f, ex);
1108          assertEquals(1, a.get());
1109      }}
1110  
# Line 951 | Line 1160 | public class CompletableFutureTest exten
1160              });
1161          if (createIncomplete) f.completeExceptionally(ex1);
1162  
1163 <        checkCompletedWithWrappedCFException(g, ex2);
1164 <        checkCompletedWithWrappedCFException(f, ex1);
1163 >        checkCompletedWithWrappedException(g, ex2);
1164 >        checkCompletedExceptionally(f, ex1);
1165          assertEquals(1, a.get());
1166      }}
1167  
# Line 964 | Line 1173 | public class CompletableFutureTest exten
1173          final CompletableFuture<Integer> f = new CompletableFuture<>();
1174          final AtomicInteger a = new AtomicInteger(0);
1175          final CFException ex = new CFException();
1176 <        if (!createIncomplete) f.complete(v1);
1176 >        if (!createIncomplete) assertTrue(f.complete(v1));
1177          final CompletableFuture<Integer> g = m.handle
1178              (f,
1179               (Integer x, Throwable t) -> {
# Line 974 | Line 1183 | public class CompletableFutureTest exten
1183                  a.getAndIncrement();
1184                  throw ex;
1185              });
1186 <        if (createIncomplete) f.complete(v1);
1186 >        if (createIncomplete) assertTrue(f.complete(v1));
1187  
1188 <        checkCompletedWithWrappedCFException(g, ex);
1188 >        checkCompletedWithWrappedException(g, ex);
1189          checkCompletedNormally(f, v1);
1190          assertEquals(1, a.get());
1191      }}
# Line 995 | Line 1204 | public class CompletableFutureTest exten
1204          final CompletableFuture<Void> f = m.runAsync(r);
1205          assertNull(f.join());
1206          checkCompletedNormally(f, null);
1207 <        assertEquals(1, r.invocationCount);
1207 >        r.assertInvoked();
1208      }}
1209  
1210      /**
# Line 1011 | Line 1220 | public class CompletableFutureTest exten
1220          final FailingRunnable r = new FailingRunnable(m);
1221          final CompletableFuture<Void> f = m.runAsync(r);
1222          checkCompletedWithWrappedCFException(f);
1223 <        assertEquals(1, r.invocationCount);
1223 >        r.assertInvoked();
1224      }}
1225  
1226      /**
# Line 1029 | Line 1238 | public class CompletableFutureTest exten
1238          final CompletableFuture<Integer> f = m.supplyAsync(r);
1239          assertSame(v1, f.join());
1240          checkCompletedNormally(f, v1);
1241 <        assertEquals(1, r.invocationCount);
1241 >        r.assertInvoked();
1242      }}
1243  
1244      /**
# Line 1045 | Line 1254 | public class CompletableFutureTest exten
1254          FailingSupplier r = new FailingSupplier(m);
1255          CompletableFuture<Integer> f = m.supplyAsync(r);
1256          checkCompletedWithWrappedCFException(f);
1257 <        assertEquals(1, r.invocationCount);
1257 >        r.assertInvoked();
1258      }}
1259  
1260      // seq completion methods
# Line 1055 | Line 1264 | public class CompletableFutureTest exten
1264       */
1265      public void testThenRun_normalCompletion() {
1266          for (ExecutionMode m : ExecutionMode.values())
1058        for (boolean createIncomplete : new boolean[] { true, false })
1267          for (Integer v1 : new Integer[] { 1, null })
1268      {
1269          final CompletableFuture<Integer> f = new CompletableFuture<>();
1270 <        final Noop r = new Noop(m);
1271 <        if (!createIncomplete) f.complete(v1);
1064 <        final CompletableFuture<Void> g = m.thenRun(f, r);
1065 <        if (createIncomplete) {
1066 <            checkIncomplete(g);
1067 <            f.complete(v1);
1068 <        }
1270 >        final Noop[] rs = new Noop[6];
1271 >        for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1272  
1273 <        checkCompletedNormally(g, null);
1273 >        final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1274 >        final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1275 >        final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1276 >        checkIncomplete(h0);
1277 >        checkIncomplete(h1);
1278 >        checkIncomplete(h2);
1279 >        assertTrue(f.complete(v1));
1280 >        final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1281 >        final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1282 >        final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1283 >
1284 >        checkCompletedNormally(h0, null);
1285 >        checkCompletedNormally(h1, null);
1286 >        checkCompletedNormally(h2, null);
1287 >        checkCompletedNormally(h3, null);
1288 >        checkCompletedNormally(h4, null);
1289 >        checkCompletedNormally(h5, null);
1290          checkCompletedNormally(f, v1);
1291 <        assertEquals(1, r.invocationCount);
1291 >        for (Noop r : rs) r.assertInvoked();
1292      }}
1293  
1294      /**
# Line 1078 | Line 1297 | public class CompletableFutureTest exten
1297       */
1298      public void testThenRun_exceptionalCompletion() {
1299          for (ExecutionMode m : ExecutionMode.values())
1081        for (boolean createIncomplete : new boolean[] { true, false })
1300      {
1301          final CFException ex = new CFException();
1302          final CompletableFuture<Integer> f = new CompletableFuture<>();
1303 <        final Noop r = new Noop(m);
1304 <        if (!createIncomplete) f.completeExceptionally(ex);
1087 <        final CompletableFuture<Void> g = m.thenRun(f, r);
1088 <        if (createIncomplete) {
1089 <            checkIncomplete(g);
1090 <            f.completeExceptionally(ex);
1091 <        }
1303 >        final Noop[] rs = new Noop[6];
1304 >        for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1305  
1306 <        checkCompletedWithWrappedCFException(g, ex);
1307 <        checkCompletedWithWrappedCFException(f, ex);
1308 <        assertEquals(0, r.invocationCount);
1306 >        final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1307 >        final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1308 >        final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1309 >        checkIncomplete(h0);
1310 >        checkIncomplete(h1);
1311 >        checkIncomplete(h2);
1312 >        assertTrue(f.completeExceptionally(ex));
1313 >        final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1314 >        final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1315 >        final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1316 >
1317 >        checkCompletedWithWrappedException(h0, ex);
1318 >        checkCompletedWithWrappedException(h1, ex);
1319 >        checkCompletedWithWrappedException(h2, ex);
1320 >        checkCompletedWithWrappedException(h3, ex);
1321 >        checkCompletedWithWrappedException(h4, ex);
1322 >        checkCompletedWithWrappedException(h5, ex);
1323 >        checkCompletedExceptionally(f, ex);
1324 >        for (Noop r : rs) r.assertNotInvoked();
1325      }}
1326  
1327      /**
# Line 1100 | Line 1329 | public class CompletableFutureTest exten
1329       */
1330      public void testThenRun_sourceCancelled() {
1331          for (ExecutionMode m : ExecutionMode.values())
1103        for (boolean createIncomplete : new boolean[] { true, false })
1332          for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1333      {
1334          final CompletableFuture<Integer> f = new CompletableFuture<>();
1335 <        final Noop r = new Noop(m);
1336 <        if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1109 <        final CompletableFuture<Void> g = m.thenRun(f, r);
1110 <        if (createIncomplete) {
1111 <            checkIncomplete(g);
1112 <            assertTrue(f.cancel(mayInterruptIfRunning));
1113 <        }
1335 >        final Noop[] rs = new Noop[6];
1336 >        for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1337  
1338 <        checkCompletedWithWrappedCancellationException(g);
1338 >        final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1339 >        final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1340 >        final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1341 >        checkIncomplete(h0);
1342 >        checkIncomplete(h1);
1343 >        checkIncomplete(h2);
1344 >        assertTrue(f.cancel(mayInterruptIfRunning));
1345 >        final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1346 >        final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1347 >        final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1348 >
1349 >        checkCompletedWithWrappedCancellationException(h0);
1350 >        checkCompletedWithWrappedCancellationException(h1);
1351 >        checkCompletedWithWrappedCancellationException(h2);
1352 >        checkCompletedWithWrappedCancellationException(h3);
1353 >        checkCompletedWithWrappedCancellationException(h4);
1354 >        checkCompletedWithWrappedCancellationException(h5);
1355          checkCancelled(f);
1356 <        assertEquals(0, r.invocationCount);
1356 >        for (Noop r : rs) r.assertNotInvoked();
1357      }}
1358  
1359      /**
# Line 1122 | Line 1361 | public class CompletableFutureTest exten
1361       */
1362      public void testThenRun_actionFailed() {
1363          for (ExecutionMode m : ExecutionMode.values())
1125        for (boolean createIncomplete : new boolean[] { true, false })
1364          for (Integer v1 : new Integer[] { 1, null })
1365      {
1366          final CompletableFuture<Integer> f = new CompletableFuture<>();
1367 <        final FailingRunnable r = new FailingRunnable(m);
1368 <        if (!createIncomplete) f.complete(v1);
1131 <        final CompletableFuture<Void> g = m.thenRun(f, r);
1132 <        if (createIncomplete) {
1133 <            checkIncomplete(g);
1134 <            f.complete(v1);
1135 <        }
1367 >        final FailingRunnable[] rs = new FailingRunnable[6];
1368 >        for (int i = 0; i < rs.length; i++) rs[i] = new FailingRunnable(m);
1369  
1370 <        checkCompletedWithWrappedCFException(g);
1370 >        final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1371 >        final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1372 >        final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1373 >        assertTrue(f.complete(v1));
1374 >        final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1375 >        final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1376 >        final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1377 >
1378 >        checkCompletedWithWrappedCFException(h0);
1379 >        checkCompletedWithWrappedCFException(h1);
1380 >        checkCompletedWithWrappedCFException(h2);
1381 >        checkCompletedWithWrappedCFException(h3);
1382 >        checkCompletedWithWrappedCFException(h4);
1383 >        checkCompletedWithWrappedCFException(h5);
1384          checkCompletedNormally(f, v1);
1385      }}
1386  
# Line 1143 | Line 1389 | public class CompletableFutureTest exten
1389       */
1390      public void testThenApply_normalCompletion() {
1391          for (ExecutionMode m : ExecutionMode.values())
1146        for (boolean createIncomplete : new boolean[] { true, false })
1392          for (Integer v1 : new Integer[] { 1, null })
1393      {
1394          final CompletableFuture<Integer> f = new CompletableFuture<>();
1395 <        final IncFunction r = new IncFunction(m);
1396 <        if (!createIncomplete) f.complete(v1);
1152 <        final CompletableFuture<Integer> g = m.thenApply(f, r);
1153 <        if (createIncomplete) {
1154 <            checkIncomplete(g);
1155 <            f.complete(v1);
1156 <        }
1395 >        final IncFunction[] rs = new IncFunction[4];
1396 >        for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1397  
1398 <        checkCompletedNormally(g, inc(v1));
1398 >        final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1399 >        final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1400 >        checkIncomplete(h0);
1401 >        checkIncomplete(h1);
1402 >        assertTrue(f.complete(v1));
1403 >        final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1404 >        final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1405 >
1406 >        checkCompletedNormally(h0, inc(v1));
1407 >        checkCompletedNormally(h1, inc(v1));
1408 >        checkCompletedNormally(h2, inc(v1));
1409 >        checkCompletedNormally(h3, inc(v1));
1410          checkCompletedNormally(f, v1);
1411 <        assertEquals(1, r.invocationCount);
1411 >        for (IncFunction r : rs) r.assertValue(inc(v1));
1412      }}
1413  
1414      /**
# Line 1166 | Line 1417 | public class CompletableFutureTest exten
1417       */
1418      public void testThenApply_exceptionalCompletion() {
1419          for (ExecutionMode m : ExecutionMode.values())
1169        for (boolean createIncomplete : new boolean[] { true, false })
1420      {
1421          final CFException ex = new CFException();
1422          final CompletableFuture<Integer> f = new CompletableFuture<>();
1423 <        final IncFunction r = new IncFunction(m);
1424 <        if (!createIncomplete) f.completeExceptionally(ex);
1175 <        final CompletableFuture<Integer> g = m.thenApply(f, r);
1176 <        if (createIncomplete) {
1177 <            checkIncomplete(g);
1178 <            f.completeExceptionally(ex);
1179 <        }
1423 >        final IncFunction[] rs = new IncFunction[4];
1424 >        for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1425  
1426 <        checkCompletedWithWrappedCFException(g, ex);
1427 <        checkCompletedWithWrappedCFException(f, ex);
1428 <        assertEquals(0, r.invocationCount);
1426 >        final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1427 >        final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1428 >        assertTrue(f.completeExceptionally(ex));
1429 >        final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1430 >        final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1431 >
1432 >        checkCompletedWithWrappedException(h0, ex);
1433 >        checkCompletedWithWrappedException(h1, ex);
1434 >        checkCompletedWithWrappedException(h2, ex);
1435 >        checkCompletedWithWrappedException(h3, ex);
1436 >        checkCompletedExceptionally(f, ex);
1437 >        for (IncFunction r : rs) r.assertNotInvoked();
1438      }}
1439  
1440      /**
# Line 1188 | Line 1442 | public class CompletableFutureTest exten
1442       */
1443      public void testThenApply_sourceCancelled() {
1444          for (ExecutionMode m : ExecutionMode.values())
1191        for (boolean createIncomplete : new boolean[] { true, false })
1445          for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1446      {
1447          final CompletableFuture<Integer> f = new CompletableFuture<>();
1448 <        final IncFunction r = new IncFunction(m);
1449 <        if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1197 <        final CompletableFuture<Integer> g = m.thenApply(f, r);
1198 <        if (createIncomplete) {
1199 <            checkIncomplete(g);
1200 <            assertTrue(f.cancel(mayInterruptIfRunning));
1201 <        }
1448 >        final IncFunction[] rs = new IncFunction[4];
1449 >        for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1450  
1451 <        checkCompletedWithWrappedCancellationException(g);
1451 >        final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1452 >        final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1453 >        assertTrue(f.cancel(mayInterruptIfRunning));
1454 >        final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1455 >        final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1456 >
1457 >        checkCompletedWithWrappedCancellationException(h0);
1458 >        checkCompletedWithWrappedCancellationException(h1);
1459 >        checkCompletedWithWrappedCancellationException(h2);
1460 >        checkCompletedWithWrappedCancellationException(h3);
1461          checkCancelled(f);
1462 <        assertEquals(0, r.invocationCount);
1462 >        for (IncFunction r : rs) r.assertNotInvoked();
1463      }}
1464  
1465      /**
# Line 1210 | Line 1467 | public class CompletableFutureTest exten
1467       */
1468      public void testThenApply_actionFailed() {
1469          for (ExecutionMode m : ExecutionMode.values())
1213        for (boolean createIncomplete : new boolean[] { true, false })
1470          for (Integer v1 : new Integer[] { 1, null })
1471      {
1472          final CompletableFuture<Integer> f = new CompletableFuture<>();
1473 <        final FailingFunction r = new FailingFunction(m);
1474 <        if (!createIncomplete) f.complete(v1);
1219 <        final CompletableFuture<Integer> g = m.thenApply(f, r);
1220 <        if (createIncomplete) {
1221 <            checkIncomplete(g);
1222 <            f.complete(v1);
1223 <        }
1473 >        final FailingFunction[] rs = new FailingFunction[4];
1474 >        for (int i = 0; i < rs.length; i++) rs[i] = new FailingFunction(m);
1475  
1476 <        checkCompletedWithWrappedCFException(g);
1476 >        final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1477 >        final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1478 >        assertTrue(f.complete(v1));
1479 >        final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1480 >        final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1481 >
1482 >        checkCompletedWithWrappedCFException(h0);
1483 >        checkCompletedWithWrappedCFException(h1);
1484 >        checkCompletedWithWrappedCFException(h2);
1485 >        checkCompletedWithWrappedCFException(h3);
1486          checkCompletedNormally(f, v1);
1487      }}
1488  
# Line 1231 | Line 1491 | public class CompletableFutureTest exten
1491       */
1492      public void testThenAccept_normalCompletion() {
1493          for (ExecutionMode m : ExecutionMode.values())
1234        for (boolean createIncomplete : new boolean[] { true, false })
1494          for (Integer v1 : new Integer[] { 1, null })
1495      {
1496          final CompletableFuture<Integer> f = new CompletableFuture<>();
1497 <        final IncAction r = new IncAction();
1498 <        if (!createIncomplete) f.complete(v1);
1240 <        final CompletableFuture<Void> g = m.thenAccept(f, r);
1241 <        if (createIncomplete) {
1242 <            checkIncomplete(g);
1243 <            f.complete(v1);
1244 <        }
1497 >        final NoopConsumer[] rs = new NoopConsumer[4];
1498 >        for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1499  
1500 <        checkCompletedNormally(g, null);
1500 >        final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1501 >        final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1502 >        checkIncomplete(h0);
1503 >        checkIncomplete(h1);
1504 >        assertTrue(f.complete(v1));
1505 >        final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1506 >        final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1507 >
1508 >        checkCompletedNormally(h0, null);
1509 >        checkCompletedNormally(h1, null);
1510 >        checkCompletedNormally(h2, null);
1511 >        checkCompletedNormally(h3, null);
1512          checkCompletedNormally(f, v1);
1513 <        assertEquals(1, r.invocationCount);
1249 <        assertEquals(inc(v1), r.value);
1513 >        for (NoopConsumer r : rs) r.assertValue(v1);
1514      }}
1515  
1516      /**
# Line 1255 | Line 1519 | public class CompletableFutureTest exten
1519       */
1520      public void testThenAccept_exceptionalCompletion() {
1521          for (ExecutionMode m : ExecutionMode.values())
1258        for (boolean createIncomplete : new boolean[] { true, false })
1522      {
1523          final CFException ex = new CFException();
1524          final CompletableFuture<Integer> f = new CompletableFuture<>();
1525 <        final IncAction r = new IncAction();
1526 <        if (!createIncomplete) f.completeExceptionally(ex);
1264 <        final CompletableFuture<Void> g = m.thenAccept(f, r);
1265 <        if (createIncomplete) {
1266 <            checkIncomplete(g);
1267 <            f.completeExceptionally(ex);
1268 <        }
1525 >        final NoopConsumer[] rs = new NoopConsumer[4];
1526 >        for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1527  
1528 <        checkCompletedWithWrappedCFException(g, ex);
1529 <        checkCompletedWithWrappedCFException(f, ex);
1530 <        assertEquals(0, r.invocationCount);
1528 >        final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1529 >        final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1530 >        assertTrue(f.completeExceptionally(ex));
1531 >        final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1532 >        final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1533 >
1534 >        checkCompletedWithWrappedException(h0, ex);
1535 >        checkCompletedWithWrappedException(h1, ex);
1536 >        checkCompletedWithWrappedException(h2, ex);
1537 >        checkCompletedWithWrappedException(h3, ex);
1538 >        checkCompletedExceptionally(f, ex);
1539 >        for (NoopConsumer r : rs) r.assertNotInvoked();
1540      }}
1541  
1542      /**
1543 <     * thenAccept result completes exceptionally if action does
1543 >     * thenAccept result completes exceptionally if source cancelled
1544       */
1545 <    public void testThenAccept_actionFailed() {
1545 >    public void testThenAccept_sourceCancelled() {
1546          for (ExecutionMode m : ExecutionMode.values())
1547 <        for (boolean createIncomplete : new boolean[] { true, false })
1281 <        for (Integer v1 : new Integer[] { 1, null })
1547 >        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1548      {
1549          final CompletableFuture<Integer> f = new CompletableFuture<>();
1550 <        final FailingConsumer r = new FailingConsumer(m);
1551 <        if (!createIncomplete) f.complete(v1);
1286 <        final CompletableFuture<Void> g = m.thenAccept(f, r);
1287 <        if (createIncomplete) {
1288 <            checkIncomplete(g);
1289 <            f.complete(v1);
1290 <        }
1550 >        final NoopConsumer[] rs = new NoopConsumer[4];
1551 >        for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1552  
1553 <        checkCompletedWithWrappedCFException(g);
1554 <        checkCompletedNormally(f, v1);
1553 >        final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1554 >        final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1555 >        assertTrue(f.cancel(mayInterruptIfRunning));
1556 >        final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1557 >        final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1558 >
1559 >        checkCompletedWithWrappedCancellationException(h0);
1560 >        checkCompletedWithWrappedCancellationException(h1);
1561 >        checkCompletedWithWrappedCancellationException(h2);
1562 >        checkCompletedWithWrappedCancellationException(h3);
1563 >        checkCancelled(f);
1564 >        for (NoopConsumer r : rs) r.assertNotInvoked();
1565      }}
1566  
1567      /**
1568 <     * thenAccept result completes exceptionally if source cancelled
1568 >     * thenAccept result completes exceptionally if action does
1569       */
1570 <    public void testThenAccept_sourceCancelled() {
1570 >    public void testThenAccept_actionFailed() {
1571          for (ExecutionMode m : ExecutionMode.values())
1572 <        for (boolean createIncomplete : new boolean[] { true, false })
1302 <        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1572 >        for (Integer v1 : new Integer[] { 1, null })
1573      {
1574          final CompletableFuture<Integer> f = new CompletableFuture<>();
1575 <        final IncAction r = new IncAction();
1576 <        if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1307 <        final CompletableFuture<Void> g = m.thenAccept(f, r);
1308 <        if (createIncomplete) {
1309 <            checkIncomplete(g);
1310 <            assertTrue(f.cancel(mayInterruptIfRunning));
1311 <        }
1575 >        final FailingConsumer[] rs = new FailingConsumer[4];
1576 >        for (int i = 0; i < rs.length; i++) rs[i] = new FailingConsumer(m);
1577  
1578 <        checkCompletedWithWrappedCancellationException(g);
1579 <        checkCancelled(f);
1580 <        assertEquals(0, r.invocationCount);
1578 >        final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1579 >        final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1580 >        assertTrue(f.complete(v1));
1581 >        final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1582 >        final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1583 >
1584 >        checkCompletedWithWrappedCFException(h0);
1585 >        checkCompletedWithWrappedCFException(h1);
1586 >        checkCompletedWithWrappedCFException(h2);
1587 >        checkCompletedWithWrappedCFException(h3);
1588 >        checkCompletedNormally(f, v1);
1589      }}
1590  
1591      /**
# Line 1321 | Line 1594 | public class CompletableFutureTest exten
1594       */
1595      public void testThenCombine_normalCompletion() {
1596          for (ExecutionMode m : ExecutionMode.values())
1324        for (boolean createIncomplete : new boolean[] { true, false })
1597          for (boolean fFirst : new boolean[] { true, false })
1598          for (Integer v1 : new Integer[] { 1, null })
1599          for (Integer v2 : new Integer[] { 2, null })
1600      {
1601          final CompletableFuture<Integer> f = new CompletableFuture<>();
1602          final CompletableFuture<Integer> g = new CompletableFuture<>();
1603 <        final SubtractFunction r = new SubtractFunction(m);
1604 <
1605 <        if (fFirst) f.complete(v1); else g.complete(v2);
1606 <        if (!createIncomplete)
1607 <            if (!fFirst) f.complete(v1); else g.complete(v2);
1608 <        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1609 <        if (createIncomplete) {
1610 <            checkIncomplete(h);
1611 <            assertEquals(0, r.invocationCount);
1612 <            if (!fFirst) f.complete(v1); else g.complete(v2);
1613 <        }
1614 <
1615 <        checkCompletedNormally(h, subtract(v1, v2));
1603 >        final SubtractFunction r1 = new SubtractFunction(m);
1604 >        final SubtractFunction r2 = new SubtractFunction(m);
1605 >        final SubtractFunction r3 = new SubtractFunction(m);
1606 >
1607 >        final CompletableFuture<Integer> fst =  fFirst ? f : g;
1608 >        final CompletableFuture<Integer> snd = !fFirst ? f : g;
1609 >        final Integer w1 =  fFirst ? v1 : v2;
1610 >        final Integer w2 = !fFirst ? v1 : v2;
1611 >
1612 >        final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1613 >        assertTrue(fst.complete(w1));
1614 >        final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1615 >        checkIncomplete(h1);
1616 >        checkIncomplete(h2);
1617 >        r1.assertNotInvoked();
1618 >        r2.assertNotInvoked();
1619 >        assertTrue(snd.complete(w2));
1620 >        final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1621 >
1622 >        checkCompletedNormally(h1, subtract(v1, v2));
1623 >        checkCompletedNormally(h2, subtract(v1, v2));
1624 >        checkCompletedNormally(h3, subtract(v1, v2));
1625 >        r1.assertValue(subtract(v1, v2));
1626 >        r2.assertValue(subtract(v1, v2));
1627 >        r3.assertValue(subtract(v1, v2));
1628          checkCompletedNormally(f, v1);
1629          checkCompletedNormally(g, v2);
1346        assertEquals(1, r.invocationCount);
1630      }}
1631  
1632      /**
1633       * thenCombine result completes exceptionally after exceptional
1634       * completion of either source
1635       */
1636 <    public void testThenCombine_exceptionalCompletion() {
1636 >    public void testThenCombine_exceptionalCompletion() throws Throwable {
1637          for (ExecutionMode m : ExecutionMode.values())
1355        for (boolean createIncomplete : new boolean[] { true, false })
1638          for (boolean fFirst : new boolean[] { true, false })
1639 +        for (boolean failFirst : new boolean[] { true, false })
1640          for (Integer v1 : new Integer[] { 1, null })
1641      {
1642          final CompletableFuture<Integer> f = new CompletableFuture<>();
1643          final CompletableFuture<Integer> g = new CompletableFuture<>();
1644          final CFException ex = new CFException();
1645 <        final SubtractFunction r = new SubtractFunction(m);
1646 <
1647 <        (fFirst ? f : g).complete(v1);
1648 <        if (!createIncomplete)
1649 <            (!fFirst ? f : g).completeExceptionally(ex);
1650 <        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1651 <        if (createIncomplete) {
1652 <            checkIncomplete(h);
1653 <            (!fFirst ? f : g).completeExceptionally(ex);
1654 <        }
1655 <
1656 <        checkCompletedWithWrappedCFException(h, ex);
1657 <        assertEquals(0, r.invocationCount);
1658 <        checkCompletedNormally(fFirst ? f : g, v1);
1659 <        checkCompletedWithWrappedCFException(!fFirst ? f : g, ex);
1645 >        final SubtractFunction r1 = new SubtractFunction(m);
1646 >        final SubtractFunction r2 = new SubtractFunction(m);
1647 >        final SubtractFunction r3 = new SubtractFunction(m);
1648 >
1649 >        final CompletableFuture<Integer> fst =  fFirst ? f : g;
1650 >        final CompletableFuture<Integer> snd = !fFirst ? f : g;
1651 >        final Callable<Boolean> complete1 = failFirst ?
1652 >            () -> fst.completeExceptionally(ex) :
1653 >            () -> fst.complete(v1);
1654 >        final Callable<Boolean> complete2 = failFirst ?
1655 >            () -> snd.complete(v1) :
1656 >            () -> snd.completeExceptionally(ex);
1657 >
1658 >        final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1659 >        assertTrue(complete1.call());
1660 >        final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1661 >        checkIncomplete(h1);
1662 >        checkIncomplete(h2);
1663 >        assertTrue(complete2.call());
1664 >        final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1665 >
1666 >        checkCompletedWithWrappedException(h1, ex);
1667 >        checkCompletedWithWrappedException(h2, ex);
1668 >        checkCompletedWithWrappedException(h3, ex);
1669 >        r1.assertNotInvoked();
1670 >        r2.assertNotInvoked();
1671 >        r3.assertNotInvoked();
1672 >        checkCompletedNormally(failFirst ? snd : fst, v1);
1673 >        checkCompletedExceptionally(failFirst ? fst : snd, ex);
1674      }}
1675  
1676      /**
1677 <     * thenCombine result completes exceptionally if action does
1677 >     * thenCombine result completes exceptionally if either source cancelled
1678       */
1679 <    public void testThenCombine_actionFailed() {
1679 >    public void testThenCombine_sourceCancelled() throws Throwable {
1680          for (ExecutionMode m : ExecutionMode.values())
1681 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1682          for (boolean fFirst : new boolean[] { true, false })
1683 +        for (boolean failFirst : new boolean[] { true, false })
1684          for (Integer v1 : new Integer[] { 1, null })
1386        for (Integer v2 : new Integer[] { 2, null })
1685      {
1686          final CompletableFuture<Integer> f = new CompletableFuture<>();
1687          final CompletableFuture<Integer> g = new CompletableFuture<>();
1688 <        final FailingBiFunction r = new FailingBiFunction(m);
1689 <        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1690 <
1691 <        if (fFirst) {
1692 <            f.complete(v1);
1693 <            g.complete(v2);
1694 <        } else {
1695 <            g.complete(v2);
1696 <            f.complete(v1);
1697 <        }
1698 <
1699 <        checkCompletedWithWrappedCFException(h);
1700 <        checkCompletedNormally(f, v1);
1701 <        checkCompletedNormally(g, v2);
1688 >        final SubtractFunction r1 = new SubtractFunction(m);
1689 >        final SubtractFunction r2 = new SubtractFunction(m);
1690 >        final SubtractFunction r3 = new SubtractFunction(m);
1691 >
1692 >        final CompletableFuture<Integer> fst =  fFirst ? f : g;
1693 >        final CompletableFuture<Integer> snd = !fFirst ? f : g;
1694 >        final Callable<Boolean> complete1 = failFirst ?
1695 >            () -> fst.cancel(mayInterruptIfRunning) :
1696 >            () -> fst.complete(v1);
1697 >        final Callable<Boolean> complete2 = failFirst ?
1698 >            () -> snd.complete(v1) :
1699 >            () -> snd.cancel(mayInterruptIfRunning);
1700 >
1701 >        final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1702 >        assertTrue(complete1.call());
1703 >        final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1704 >        checkIncomplete(h1);
1705 >        checkIncomplete(h2);
1706 >        assertTrue(complete2.call());
1707 >        final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1708 >
1709 >        checkCompletedWithWrappedCancellationException(h1);
1710 >        checkCompletedWithWrappedCancellationException(h2);
1711 >        checkCompletedWithWrappedCancellationException(h3);
1712 >        r1.assertNotInvoked();
1713 >        r2.assertNotInvoked();
1714 >        r3.assertNotInvoked();
1715 >        checkCompletedNormally(failFirst ? snd : fst, v1);
1716 >        checkCancelled(failFirst ? fst : snd);
1717      }}
1718  
1719      /**
1720 <     * thenCombine result completes exceptionally if either source cancelled
1720 >     * thenCombine result completes exceptionally if action does
1721       */
1722 <    public void testThenCombine_sourceCancelled() {
1722 >    public void testThenCombine_actionFailed() {
1723          for (ExecutionMode m : ExecutionMode.values())
1411        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1412        for (boolean createIncomplete : new boolean[] { true, false })
1724          for (boolean fFirst : new boolean[] { true, false })
1725          for (Integer v1 : new Integer[] { 1, null })
1726 +        for (Integer v2 : new Integer[] { 2, null })
1727      {
1728          final CompletableFuture<Integer> f = new CompletableFuture<>();
1729          final CompletableFuture<Integer> g = new CompletableFuture<>();
1730 <        final SubtractFunction r = new SubtractFunction(m);
1730 >        final FailingBiFunction r1 = new FailingBiFunction(m);
1731 >        final FailingBiFunction r2 = new FailingBiFunction(m);
1732 >        final FailingBiFunction r3 = new FailingBiFunction(m);
1733 >
1734 >        final CompletableFuture<Integer> fst =  fFirst ? f : g;
1735 >        final CompletableFuture<Integer> snd = !fFirst ? f : g;
1736 >        final Integer w1 =  fFirst ? v1 : v2;
1737 >        final Integer w2 = !fFirst ? v1 : v2;
1738 >
1739 >        final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1740 >        assertTrue(fst.complete(w1));
1741 >        final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1742 >        assertTrue(snd.complete(w2));
1743 >        final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1744  
1745 <        (fFirst ? f : g).complete(v1);
1746 <        if (!createIncomplete)
1747 <            assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
1748 <        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1749 <        if (createIncomplete) {
1750 <            checkIncomplete(h);
1751 <            assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
1752 <        }
1428 <
1429 <        checkCompletedWithWrappedCancellationException(h);
1430 <        checkCancelled(!fFirst ? f : g);
1431 <        assertEquals(0, r.invocationCount);
1432 <        checkCompletedNormally(fFirst ? f : g, v1);
1745 >        checkCompletedWithWrappedCFException(h1);
1746 >        checkCompletedWithWrappedCFException(h2);
1747 >        checkCompletedWithWrappedCFException(h3);
1748 >        r1.assertInvoked();
1749 >        r2.assertInvoked();
1750 >        r3.assertInvoked();
1751 >        checkCompletedNormally(f, v1);
1752 >        checkCompletedNormally(g, v2);
1753      }}
1754  
1755      /**
# Line 1438 | Line 1758 | public class CompletableFutureTest exten
1758       */
1759      public void testThenAcceptBoth_normalCompletion() {
1760          for (ExecutionMode m : ExecutionMode.values())
1441        for (boolean createIncomplete : new boolean[] { true, false })
1761          for (boolean fFirst : new boolean[] { true, false })
1762          for (Integer v1 : new Integer[] { 1, null })
1763          for (Integer v2 : new Integer[] { 2, null })
1764      {
1765          final CompletableFuture<Integer> f = new CompletableFuture<>();
1766          final CompletableFuture<Integer> g = new CompletableFuture<>();
1767 <        final SubtractAction r = new SubtractAction(m);
1768 <
1769 <        if (fFirst) f.complete(v1); else g.complete(v2);
1770 <        if (!createIncomplete)
1771 <            if (!fFirst) f.complete(v1); else g.complete(v2);
1772 <        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1773 <        if (createIncomplete) {
1774 <            checkIncomplete(h);
1775 <            assertEquals(0, r.invocationCount);
1776 <            if (!fFirst) f.complete(v1); else g.complete(v2);
1777 <        }
1778 <
1779 <        checkCompletedNormally(h, null);
1780 <        assertEquals(subtract(v1, v2), r.value);
1767 >        final SubtractAction r1 = new SubtractAction(m);
1768 >        final SubtractAction r2 = new SubtractAction(m);
1769 >        final SubtractAction r3 = new SubtractAction(m);
1770 >
1771 >        final CompletableFuture<Integer> fst =  fFirst ? f : g;
1772 >        final CompletableFuture<Integer> snd = !fFirst ? f : g;
1773 >        final Integer w1 =  fFirst ? v1 : v2;
1774 >        final Integer w2 = !fFirst ? v1 : v2;
1775 >
1776 >        final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1777 >        assertTrue(fst.complete(w1));
1778 >        final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1779 >        checkIncomplete(h1);
1780 >        checkIncomplete(h2);
1781 >        r1.assertNotInvoked();
1782 >        r2.assertNotInvoked();
1783 >        assertTrue(snd.complete(w2));
1784 >        final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1785 >
1786 >        checkCompletedNormally(h1, null);
1787 >        checkCompletedNormally(h2, null);
1788 >        checkCompletedNormally(h3, null);
1789 >        r1.assertValue(subtract(v1, v2));
1790 >        r2.assertValue(subtract(v1, v2));
1791 >        r3.assertValue(subtract(v1, v2));
1792          checkCompletedNormally(f, v1);
1793          checkCompletedNormally(g, v2);
1794      }}
# Line 1467 | Line 1797 | public class CompletableFutureTest exten
1797       * thenAcceptBoth result completes exceptionally after exceptional
1798       * completion of either source
1799       */
1800 <    public void testThenAcceptBoth_exceptionalCompletion() {
1800 >    public void testThenAcceptBoth_exceptionalCompletion() throws Throwable {
1801          for (ExecutionMode m : ExecutionMode.values())
1472        for (boolean createIncomplete : new boolean[] { true, false })
1802          for (boolean fFirst : new boolean[] { true, false })
1803 +        for (boolean failFirst : new boolean[] { true, false })
1804          for (Integer v1 : new Integer[] { 1, null })
1805      {
1806          final CompletableFuture<Integer> f = new CompletableFuture<>();
1807          final CompletableFuture<Integer> g = new CompletableFuture<>();
1808          final CFException ex = new CFException();
1809 <        final SubtractAction r = new SubtractAction(m);
1810 <
1811 <        (fFirst ? f : g).complete(v1);
1812 <        if (!createIncomplete)
1813 <            (!fFirst ? f : g).completeExceptionally(ex);
1814 <        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1815 <        if (createIncomplete) {
1816 <            checkIncomplete(h);
1817 <            (!fFirst ? f : g).completeExceptionally(ex);
1818 <        }
1819 <
1820 <        checkCompletedWithWrappedCFException(h, ex);
1821 <        assertEquals(0, r.invocationCount);
1822 <        checkCompletedNormally(fFirst ? f : g, v1);
1823 <        checkCompletedWithWrappedCFException(!fFirst ? f : g, ex);
1809 >        final SubtractAction r1 = new SubtractAction(m);
1810 >        final SubtractAction r2 = new SubtractAction(m);
1811 >        final SubtractAction r3 = new SubtractAction(m);
1812 >
1813 >        final CompletableFuture<Integer> fst =  fFirst ? f : g;
1814 >        final CompletableFuture<Integer> snd = !fFirst ? f : g;
1815 >        final Callable<Boolean> complete1 = failFirst ?
1816 >            () -> fst.completeExceptionally(ex) :
1817 >            () -> fst.complete(v1);
1818 >        final Callable<Boolean> complete2 = failFirst ?
1819 >            () -> snd.complete(v1) :
1820 >            () -> snd.completeExceptionally(ex);
1821 >
1822 >        final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1823 >        assertTrue(complete1.call());
1824 >        final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1825 >        checkIncomplete(h1);
1826 >        checkIncomplete(h2);
1827 >        assertTrue(complete2.call());
1828 >        final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1829 >
1830 >        checkCompletedWithWrappedException(h1, ex);
1831 >        checkCompletedWithWrappedException(h2, ex);
1832 >        checkCompletedWithWrappedException(h3, ex);
1833 >        r1.assertNotInvoked();
1834 >        r2.assertNotInvoked();
1835 >        r3.assertNotInvoked();
1836 >        checkCompletedNormally(failFirst ? snd : fst, v1);
1837 >        checkCompletedExceptionally(failFirst ? fst : snd, ex);
1838      }}
1839  
1840      /**
1841 <     * thenAcceptBoth result completes exceptionally if action does
1841 >     * thenAcceptBoth result completes exceptionally if either source cancelled
1842       */
1843 <    public void testThenAcceptBoth_actionFailed() {
1843 >    public void testThenAcceptBoth_sourceCancelled() throws Throwable {
1844          for (ExecutionMode m : ExecutionMode.values())
1845 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1846          for (boolean fFirst : new boolean[] { true, false })
1847 +        for (boolean failFirst : new boolean[] { true, false })
1848          for (Integer v1 : new Integer[] { 1, null })
1503        for (Integer v2 : new Integer[] { 2, null })
1849      {
1850          final CompletableFuture<Integer> f = new CompletableFuture<>();
1851          final CompletableFuture<Integer> g = new CompletableFuture<>();
1852 <        final FailingBiConsumer r = new FailingBiConsumer(m);
1853 <        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1854 <
1855 <        if (fFirst) {
1856 <            f.complete(v1);
1857 <            g.complete(v2);
1858 <        } else {
1859 <            g.complete(v2);
1860 <            f.complete(v1);
1861 <        }
1862 <
1863 <        checkCompletedWithWrappedCFException(h);
1864 <        checkCompletedNormally(f, v1);
1865 <        checkCompletedNormally(g, v2);
1852 >        final SubtractAction r1 = new SubtractAction(m);
1853 >        final SubtractAction r2 = new SubtractAction(m);
1854 >        final SubtractAction r3 = new SubtractAction(m);
1855 >
1856 >        final CompletableFuture<Integer> fst =  fFirst ? f : g;
1857 >        final CompletableFuture<Integer> snd = !fFirst ? f : g;
1858 >        final Callable<Boolean> complete1 = failFirst ?
1859 >            () -> fst.cancel(mayInterruptIfRunning) :
1860 >            () -> fst.complete(v1);
1861 >        final Callable<Boolean> complete2 = failFirst ?
1862 >            () -> snd.complete(v1) :
1863 >            () -> snd.cancel(mayInterruptIfRunning);
1864 >
1865 >        final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1866 >        assertTrue(complete1.call());
1867 >        final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1868 >        checkIncomplete(h1);
1869 >        checkIncomplete(h2);
1870 >        assertTrue(complete2.call());
1871 >        final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1872 >
1873 >        checkCompletedWithWrappedCancellationException(h1);
1874 >        checkCompletedWithWrappedCancellationException(h2);
1875 >        checkCompletedWithWrappedCancellationException(h3);
1876 >        r1.assertNotInvoked();
1877 >        r2.assertNotInvoked();
1878 >        r3.assertNotInvoked();
1879 >        checkCompletedNormally(failFirst ? snd : fst, v1);
1880 >        checkCancelled(failFirst ? fst : snd);
1881      }}
1882  
1883      /**
1884 <     * thenAcceptBoth result completes exceptionally if either source cancelled
1884 >     * thenAcceptBoth result completes exceptionally if action does
1885       */
1886 <    public void testThenAcceptBoth_sourceCancelled() {
1886 >    public void testThenAcceptBoth_actionFailed() {
1887          for (ExecutionMode m : ExecutionMode.values())
1528        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1529        for (boolean createIncomplete : new boolean[] { true, false })
1888          for (boolean fFirst : new boolean[] { true, false })
1889          for (Integer v1 : new Integer[] { 1, null })
1890 +        for (Integer v2 : new Integer[] { 2, null })
1891      {
1892          final CompletableFuture<Integer> f = new CompletableFuture<>();
1893          final CompletableFuture<Integer> g = new CompletableFuture<>();
1894 <        final SubtractAction r = new SubtractAction(m);
1894 >        final FailingBiConsumer r1 = new FailingBiConsumer(m);
1895 >        final FailingBiConsumer r2 = new FailingBiConsumer(m);
1896 >        final FailingBiConsumer r3 = new FailingBiConsumer(m);
1897 >
1898 >        final CompletableFuture<Integer> fst =  fFirst ? f : g;
1899 >        final CompletableFuture<Integer> snd = !fFirst ? f : g;
1900 >        final Integer w1 =  fFirst ? v1 : v2;
1901 >        final Integer w2 = !fFirst ? v1 : v2;
1902 >
1903 >        final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1904 >        assertTrue(fst.complete(w1));
1905 >        final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1906 >        assertTrue(snd.complete(w2));
1907 >        final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1908  
1909 <        (fFirst ? f : g).complete(v1);
1910 <        if (!createIncomplete)
1911 <            assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
1912 <        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1913 <        if (createIncomplete) {
1914 <            checkIncomplete(h);
1915 <            assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
1916 <        }
1545 <
1546 <        checkCompletedWithWrappedCancellationException(h);
1547 <        checkCancelled(!fFirst ? f : g);
1548 <        assertEquals(0, r.invocationCount);
1549 <        checkCompletedNormally(fFirst ? f : g, v1);
1909 >        checkCompletedWithWrappedCFException(h1);
1910 >        checkCompletedWithWrappedCFException(h2);
1911 >        checkCompletedWithWrappedCFException(h3);
1912 >        r1.assertInvoked();
1913 >        r2.assertInvoked();
1914 >        r3.assertInvoked();
1915 >        checkCompletedNormally(f, v1);
1916 >        checkCompletedNormally(g, v2);
1917      }}
1918  
1919      /**
# Line 1555 | Line 1922 | public class CompletableFutureTest exten
1922       */
1923      public void testRunAfterBoth_normalCompletion() {
1924          for (ExecutionMode m : ExecutionMode.values())
1558        for (boolean createIncomplete : new boolean[] { true, false })
1925          for (boolean fFirst : new boolean[] { true, false })
1926          for (Integer v1 : new Integer[] { 1, null })
1927          for (Integer v2 : new Integer[] { 2, null })
1928      {
1929          final CompletableFuture<Integer> f = new CompletableFuture<>();
1930          final CompletableFuture<Integer> g = new CompletableFuture<>();
1931 <        final Noop r = new Noop(m);
1932 <
1933 <        if (fFirst) f.complete(v1); else g.complete(v2);
1934 <        if (!createIncomplete)
1935 <            if (!fFirst) f.complete(v1); else g.complete(v2);
1936 <        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1937 <        if (createIncomplete) {
1938 <            checkIncomplete(h);
1939 <            assertEquals(0, r.invocationCount);
1940 <            if (!fFirst) f.complete(v1); else g.complete(v2);
1941 <        }
1942 <
1943 <        checkCompletedNormally(h, null);
1944 <        assertEquals(1, r.invocationCount);
1931 >        final Noop r1 = new Noop(m);
1932 >        final Noop r2 = new Noop(m);
1933 >        final Noop r3 = new Noop(m);
1934 >
1935 >        final CompletableFuture<Integer> fst =  fFirst ? f : g;
1936 >        final CompletableFuture<Integer> snd = !fFirst ? f : g;
1937 >        final Integer w1 =  fFirst ? v1 : v2;
1938 >        final Integer w2 = !fFirst ? v1 : v2;
1939 >
1940 >        final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
1941 >        assertTrue(fst.complete(w1));
1942 >        final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
1943 >        checkIncomplete(h1);
1944 >        checkIncomplete(h2);
1945 >        r1.assertNotInvoked();
1946 >        r2.assertNotInvoked();
1947 >        assertTrue(snd.complete(w2));
1948 >        final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
1949 >
1950 >        checkCompletedNormally(h1, null);
1951 >        checkCompletedNormally(h2, null);
1952 >        checkCompletedNormally(h3, null);
1953 >        r1.assertInvoked();
1954 >        r2.assertInvoked();
1955 >        r3.assertInvoked();
1956          checkCompletedNormally(f, v1);
1957          checkCompletedNormally(g, v2);
1958      }}
# Line 1584 | Line 1961 | public class CompletableFutureTest exten
1961       * runAfterBoth result completes exceptionally after exceptional
1962       * completion of either source
1963       */
1964 <    public void testRunAfterBoth_exceptionalCompletion() {
1964 >    public void testRunAfterBoth_exceptionalCompletion() throws Throwable {
1965          for (ExecutionMode m : ExecutionMode.values())
1589        for (boolean createIncomplete : new boolean[] { true, false })
1966          for (boolean fFirst : new boolean[] { true, false })
1967 +        for (boolean failFirst : new boolean[] { true, false })
1968          for (Integer v1 : new Integer[] { 1, null })
1969      {
1970          final CompletableFuture<Integer> f = new CompletableFuture<>();
1971          final CompletableFuture<Integer> g = new CompletableFuture<>();
1972          final CFException ex = new CFException();
1973 <        final Noop r = new Noop(m);
1974 <
1975 <        (fFirst ? f : g).complete(v1);
1976 <        if (!createIncomplete)
1977 <            (!fFirst ? f : g).completeExceptionally(ex);
1978 <        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1979 <        if (createIncomplete) {
1980 <            checkIncomplete(h);
1981 <            (!fFirst ? f : g).completeExceptionally(ex);
1982 <        }
1983 <
1984 <        checkCompletedWithWrappedCFException(h, ex);
1985 <        assertEquals(0, r.invocationCount);
1986 <        checkCompletedNormally(fFirst ? f : g, v1);
1987 <        checkCompletedWithWrappedCFException(!fFirst ? f : g, ex);
1988 <    }}
1989 <
1990 <    /**
1991 <     * runAfterBoth result completes exceptionally if action does
1992 <     */
1993 <    public void testRunAfterBoth_actionFailed() {
1994 <        for (ExecutionMode m : ExecutionMode.values())
1995 <        for (boolean fFirst : new boolean[] { true, false })
1996 <        for (Integer v1 : new Integer[] { 1, null })
1997 <        for (Integer v2 : new Integer[] { 2, null })
1998 <    {
1999 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
2000 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
2001 <        final FailingRunnable r = new FailingRunnable(m);
1625 <
1626 <        CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r);
1627 <        if (fFirst) {
1628 <            f.complete(v1);
1629 <            g.complete(v2);
1630 <        } else {
1631 <            g.complete(v2);
1632 <            f.complete(v1);
1633 <        }
1634 <        CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r);
1635 <
1636 <        checkCompletedWithWrappedCFException(h1);
1637 <        checkCompletedWithWrappedCFException(h2);
1638 <        checkCompletedNormally(f, v1);
1639 <        checkCompletedNormally(g, v2);
1973 >        final Noop r1 = new Noop(m);
1974 >        final Noop r2 = new Noop(m);
1975 >        final Noop r3 = new Noop(m);
1976 >
1977 >        final CompletableFuture<Integer> fst =  fFirst ? f : g;
1978 >        final CompletableFuture<Integer> snd = !fFirst ? f : g;
1979 >        final Callable<Boolean> complete1 = failFirst ?
1980 >            () -> fst.completeExceptionally(ex) :
1981 >            () -> fst.complete(v1);
1982 >        final Callable<Boolean> complete2 = failFirst ?
1983 >            () -> snd.complete(v1) :
1984 >            () -> snd.completeExceptionally(ex);
1985 >
1986 >        final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
1987 >        assertTrue(complete1.call());
1988 >        final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
1989 >        checkIncomplete(h1);
1990 >        checkIncomplete(h2);
1991 >        assertTrue(complete2.call());
1992 >        final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
1993 >
1994 >        checkCompletedWithWrappedException(h1, ex);
1995 >        checkCompletedWithWrappedException(h2, ex);
1996 >        checkCompletedWithWrappedException(h3, ex);
1997 >        r1.assertNotInvoked();
1998 >        r2.assertNotInvoked();
1999 >        r3.assertNotInvoked();
2000 >        checkCompletedNormally(failFirst ? snd : fst, v1);
2001 >        checkCompletedExceptionally(failFirst ? fst : snd, ex);
2002      }}
2003  
2004      /**
2005       * runAfterBoth result completes exceptionally if either source cancelled
2006       */
2007 <    public void testRunAfterBoth_sourceCancelled() {
2007 >    public void testRunAfterBoth_sourceCancelled() throws Throwable {
2008          for (ExecutionMode m : ExecutionMode.values())
2009          for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1648        for (boolean createIncomplete : new boolean[] { true, false })
2010          for (boolean fFirst : new boolean[] { true, false })
2011 +        for (boolean failFirst : new boolean[] { true, false })
2012          for (Integer v1 : new Integer[] { 1, null })
2013      {
2014          final CompletableFuture<Integer> f = new CompletableFuture<>();
2015          final CompletableFuture<Integer> g = new CompletableFuture<>();
2016 <        final Noop r = new Noop(m);
2017 <
2018 <
2019 <        (fFirst ? f : g).complete(v1);
2020 <        if (!createIncomplete)
2021 <            assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
2022 <        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
2023 <        if (createIncomplete) {
2024 <            checkIncomplete(h);
2025 <            assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
2026 <        }
2027 <
2028 <        checkCompletedWithWrappedCancellationException(h);
2029 <        checkCancelled(!fFirst ? f : g);
2030 <        assertEquals(0, r.invocationCount);
2031 <        checkCompletedNormally(fFirst ? f : g, v1);
2016 >        final Noop r1 = new Noop(m);
2017 >        final Noop r2 = new Noop(m);
2018 >        final Noop r3 = new Noop(m);
2019 >
2020 >        final CompletableFuture<Integer> fst =  fFirst ? f : g;
2021 >        final CompletableFuture<Integer> snd = !fFirst ? f : g;
2022 >        final Callable<Boolean> complete1 = failFirst ?
2023 >            () -> fst.cancel(mayInterruptIfRunning) :
2024 >            () -> fst.complete(v1);
2025 >        final Callable<Boolean> complete2 = failFirst ?
2026 >            () -> snd.complete(v1) :
2027 >            () -> snd.cancel(mayInterruptIfRunning);
2028 >
2029 >        final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2030 >        assertTrue(complete1.call());
2031 >        final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2032 >        checkIncomplete(h1);
2033 >        checkIncomplete(h2);
2034 >        assertTrue(complete2.call());
2035 >        final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2036 >
2037 >        checkCompletedWithWrappedCancellationException(h1);
2038 >        checkCompletedWithWrappedCancellationException(h2);
2039 >        checkCompletedWithWrappedCancellationException(h3);
2040 >        r1.assertNotInvoked();
2041 >        r2.assertNotInvoked();
2042 >        r3.assertNotInvoked();
2043 >        checkCompletedNormally(failFirst ? snd : fst, v1);
2044 >        checkCancelled(failFirst ? fst : snd);
2045      }}
2046  
2047      /**
2048 <     * applyToEither result completes normally after normal completion
1674 <     * of either source
2048 >     * runAfterBoth result completes exceptionally if action does
2049       */
2050 <    public void testApplyToEither_normalCompletion() {
2050 >    public void testRunAfterBoth_actionFailed() {
2051          for (ExecutionMode m : ExecutionMode.values())
1678        for (boolean createIncomplete : new boolean[] { true, false })
2052          for (boolean fFirst : new boolean[] { true, false })
2053          for (Integer v1 : new Integer[] { 1, null })
2054          for (Integer v2 : new Integer[] { 2, null })
2055      {
2056          final CompletableFuture<Integer> f = new CompletableFuture<>();
2057          final CompletableFuture<Integer> g = new CompletableFuture<>();
2058 <        final IncFunction r = new IncFunction(m);
2059 <
2060 <        if (!createIncomplete)
2061 <            if (fFirst) f.complete(v1); else g.complete(v2);
2062 <        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2063 <        if (createIncomplete) {
2064 <            checkIncomplete(h);
2065 <            assertEquals(0, r.invocationCount);
2066 <            if (fFirst) f.complete(v1); else g.complete(v2);
2067 <        }
2068 <        checkCompletedNormally(h, inc(fFirst ? v1 : v2));
2069 <        if (!fFirst) f.complete(v1); else g.complete(v2);
2058 >        final FailingRunnable r1 = new FailingRunnable(m);
2059 >        final FailingRunnable r2 = new FailingRunnable(m);
2060 >        final FailingRunnable r3 = new FailingRunnable(m);
2061 >
2062 >        final CompletableFuture<Integer> fst =  fFirst ? f : g;
2063 >        final CompletableFuture<Integer> snd = !fFirst ? f : g;
2064 >        final Integer w1 =  fFirst ? v1 : v2;
2065 >        final Integer w2 = !fFirst ? v1 : v2;
2066 >
2067 >        final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2068 >        assertTrue(fst.complete(w1));
2069 >        final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2070 >        assertTrue(snd.complete(w2));
2071 >        final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2072  
2073 +        checkCompletedWithWrappedCFException(h1);
2074 +        checkCompletedWithWrappedCFException(h2);
2075 +        checkCompletedWithWrappedCFException(h3);
2076 +        r1.assertInvoked();
2077 +        r2.assertInvoked();
2078 +        r3.assertInvoked();
2079          checkCompletedNormally(f, v1);
2080          checkCompletedNormally(g, v2);
1700        checkCompletedNormally(h, inc(fFirst ? v1 : v2));
2081      }}
2082  
2083 <    public void testApplyToEither_normalCompletionBothAvailable() {
2083 >    /**
2084 >     * applyToEither result completes normally after normal completion
2085 >     * of either source
2086 >     */
2087 >    public void testApplyToEither_normalCompletion() {
2088          for (ExecutionMode m : ExecutionMode.values())
1705        for (boolean fFirst : new boolean[] { true, false })
2089          for (Integer v1 : new Integer[] { 1, null })
2090          for (Integer v2 : new Integer[] { 2, null })
2091      {
2092          final CompletableFuture<Integer> f = new CompletableFuture<>();
2093          final CompletableFuture<Integer> g = new CompletableFuture<>();
2094 <        final IncFunction r = new IncFunction(m);
2094 >        final IncFunction[] rs = new IncFunction[6];
2095 >        for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2096  
2097 <        if (fFirst) {
2098 <            f.complete(v1);
2099 <            g.complete(v2);
2100 <        } else {
2101 <            g.complete(v2);
2102 <            f.complete(v1);
2103 <        }
2097 >        final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2098 >        final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2099 >        checkIncomplete(h0);
2100 >        checkIncomplete(h1);
2101 >        rs[0].assertNotInvoked();
2102 >        rs[1].assertNotInvoked();
2103 >        f.complete(v1);
2104 >        checkCompletedNormally(h0, inc(v1));
2105 >        checkCompletedNormally(h1, inc(v1));
2106 >        final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2107 >        final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2108 >        checkCompletedNormally(h2, inc(v1));
2109 >        checkCompletedNormally(h3, inc(v1));
2110 >        g.complete(v2);
2111  
2112 <        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2112 >        // unspecified behavior - both source completions available
2113 >        final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2114 >        final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2115 >        rs[4].assertValue(h4.join());
2116 >        rs[5].assertValue(h5.join());
2117 >        assertTrue(Objects.equals(inc(v1), h4.join()) ||
2118 >                   Objects.equals(inc(v2), h4.join()));
2119 >        assertTrue(Objects.equals(inc(v1), h5.join()) ||
2120 >                   Objects.equals(inc(v2), h5.join()));
2121  
2122          checkCompletedNormally(f, v1);
2123          checkCompletedNormally(g, v2);
2124 <
2125 <        // unspecified behavior
2126 <        assertTrue(Objects.equals(h.join(), inc(v1)) ||
2127 <                   Objects.equals(h.join(), inc(v2)));
2128 <        assertEquals(1, r.invocationCount);
2124 >        checkCompletedNormally(h0, inc(v1));
2125 >        checkCompletedNormally(h1, inc(v1));
2126 >        checkCompletedNormally(h2, inc(v1));
2127 >        checkCompletedNormally(h3, inc(v1));
2128 >        for (int i = 0; i < 4; i++) rs[i].assertValue(inc(v1));
2129      }}
2130  
2131      /**
2132       * applyToEither result completes exceptionally after exceptional
2133       * completion of either source
2134       */
2135 <    public void testApplyToEither_exceptionalCompletion1() {
2135 >    public void testApplyToEither_exceptionalCompletion() {
2136          for (ExecutionMode m : ExecutionMode.values())
1738        for (boolean createIncomplete : new boolean[] { true, false })
1739        for (boolean fFirst : new boolean[] { true, false })
2137          for (Integer v1 : new Integer[] { 1, null })
2138      {
2139          final CompletableFuture<Integer> f = new CompletableFuture<>();
2140          final CompletableFuture<Integer> g = new CompletableFuture<>();
2141          final CFException ex = new CFException();
2142 <        final IncFunction r = new IncFunction(m);
2142 >        final IncFunction[] rs = new IncFunction[6];
2143 >        for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2144  
2145 <        if (!createIncomplete) (fFirst ? f : g).completeExceptionally(ex);
2146 <        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2147 <        if (createIncomplete) {
2148 <            checkIncomplete(h);
2149 <            assertEquals(0, r.invocationCount);
2150 <            (fFirst ? f : g).completeExceptionally(ex);
2145 >        final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2146 >        final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2147 >        checkIncomplete(h0);
2148 >        checkIncomplete(h1);
2149 >        rs[0].assertNotInvoked();
2150 >        rs[1].assertNotInvoked();
2151 >        f.completeExceptionally(ex);
2152 >        checkCompletedWithWrappedException(h0, ex);
2153 >        checkCompletedWithWrappedException(h1, ex);
2154 >        final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2155 >        final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2156 >        checkCompletedWithWrappedException(h2, ex);
2157 >        checkCompletedWithWrappedException(h3, ex);
2158 >        g.complete(v1);
2159 >
2160 >        // unspecified behavior - both source completions available
2161 >        final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2162 >        final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2163 >        try {
2164 >            assertEquals(inc(v1), h4.join());
2165 >            rs[4].assertValue(inc(v1));
2166 >        } catch (CompletionException ok) {
2167 >            checkCompletedWithWrappedException(h4, ex);
2168 >            rs[4].assertNotInvoked();
2169 >        }
2170 >        try {
2171 >            assertEquals(inc(v1), h5.join());
2172 >            rs[5].assertValue(inc(v1));
2173 >        } catch (CompletionException ok) {
2174 >            checkCompletedWithWrappedException(h5, ex);
2175 >            rs[5].assertNotInvoked();
2176          }
2177  
2178 <        checkCompletedWithWrappedCFException(h, ex);
2179 <        (!fFirst ? f : g).complete(v1);
2180 <
2181 <        assertEquals(0, r.invocationCount);
2182 <        checkCompletedNormally(!fFirst ? f : g, v1);
2183 <        checkCompletedWithWrappedCFException(fFirst ? f : g, ex);
2184 <        checkCompletedWithWrappedCFException(h, ex);
2178 >        checkCompletedExceptionally(f, ex);
2179 >        checkCompletedNormally(g, v1);
2180 >        checkCompletedWithWrappedException(h0, ex);
2181 >        checkCompletedWithWrappedException(h1, ex);
2182 >        checkCompletedWithWrappedException(h2, ex);
2183 >        checkCompletedWithWrappedException(h3, ex);
2184 >        checkCompletedWithWrappedException(h4, ex);
2185 >        for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2186      }}
2187  
2188      public void testApplyToEither_exceptionalCompletion2() {
2189          for (ExecutionMode m : ExecutionMode.values())
1766        for (boolean reverseArgs : new boolean[] { true, false })
2190          for (boolean fFirst : new boolean[] { true, false })
2191          for (Integer v1 : new Integer[] { 1, null })
2192      {
2193          final CompletableFuture<Integer> f = new CompletableFuture<>();
2194          final CompletableFuture<Integer> g = new CompletableFuture<>();
1772        final IncFunction r1 = new IncFunction(m);
1773        final IncFunction r2 = new IncFunction(m);
2195          final CFException ex = new CFException();
2196 <        final CompletableFuture<Integer> j = (reverseArgs ? g : f);
2197 <        final CompletableFuture<Integer> k = (reverseArgs ? f : g);
2198 <        final CompletableFuture<Integer> h1 = m.applyToEither(j, k, r1);
2199 <        if (fFirst) {
2200 <            f.complete(v1);
2201 <            g.completeExceptionally(ex);
2202 <        } else {
2203 <            g.completeExceptionally(ex);
2204 <            f.complete(v1);
1784 <        }
1785 <        final CompletableFuture<Integer> h2 = m.applyToEither(j, k, r2);
2196 >        final IncFunction[] rs = new IncFunction[6];
2197 >        for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2198 >
2199 >        final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2200 >        final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2201 >        assertTrue(fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2202 >        assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2203 >        final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2204 >        final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2205  
2206 <        // unspecified behavior
2206 >        // unspecified behavior - both source completions available
2207 >        try {
2208 >            assertEquals(inc(v1), h0.join());
2209 >            rs[0].assertValue(inc(v1));
2210 >        } catch (CompletionException ok) {
2211 >            checkCompletedWithWrappedException(h0, ex);
2212 >            rs[0].assertNotInvoked();
2213 >        }
2214          try {
2215              assertEquals(inc(v1), h1.join());
2216 <            assertEquals(1, r1.invocationCount);
2216 >            rs[1].assertValue(inc(v1));
2217          } catch (CompletionException ok) {
2218 <            checkCompletedWithWrappedCFException(h1, ex);
2219 <            assertEquals(0, r1.invocationCount);
2218 >            checkCompletedWithWrappedException(h1, ex);
2219 >            rs[1].assertNotInvoked();
2220          }
1795
2221          try {
2222              assertEquals(inc(v1), h2.join());
2223 <            assertEquals(1, r2.invocationCount);
2223 >            rs[2].assertValue(inc(v1));
2224          } catch (CompletionException ok) {
2225 <            checkCompletedWithWrappedCFException(h2, ex);
2226 <            assertEquals(0, r2.invocationCount);
2225 >            checkCompletedWithWrappedException(h2, ex);
2226 >            rs[2].assertNotInvoked();
2227 >        }
2228 >        try {
2229 >            assertEquals(inc(v1), h3.join());
2230 >            rs[3].assertValue(inc(v1));
2231 >        } catch (CompletionException ok) {
2232 >            checkCompletedWithWrappedException(h3, ex);
2233 >            rs[3].assertNotInvoked();
2234          }
2235  
1804        checkCompletedWithWrappedCFException(g, ex);
1805        checkCompletedNormally(f, v1);
1806    }}
1807
1808    /**
1809     * applyToEither result completes exceptionally if action does
1810     */
1811    public void testApplyToEither_actionFailed1() {
1812        for (ExecutionMode m : ExecutionMode.values())
1813        for (Integer v1 : new Integer[] { 1, null })
1814        for (Integer v2 : new Integer[] { 2, null })
1815    {
1816        final CompletableFuture<Integer> f = new CompletableFuture<>();
1817        final CompletableFuture<Integer> g = new CompletableFuture<>();
1818        final FailingFunction r = new FailingFunction(m);
1819        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
1820
1821        f.complete(v1);
1822        checkCompletedWithWrappedCFException(h);
1823        g.complete(v2);
1824        checkCompletedNormally(f, v1);
1825        checkCompletedNormally(g, v2);
1826    }}
1827
1828    public void testApplyToEither_actionFailed2() {
1829        for (ExecutionMode m : ExecutionMode.values())
1830        for (Integer v1 : new Integer[] { 1, null })
1831        for (Integer v2 : new Integer[] { 2, null })
1832    {
1833        final CompletableFuture<Integer> f = new CompletableFuture<>();
1834        final CompletableFuture<Integer> g = new CompletableFuture<>();
1835        final FailingFunction r = new FailingFunction(m);
1836        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
1837
1838        g.complete(v2);
1839        checkCompletedWithWrappedCFException(h);
1840        f.complete(v1);
2236          checkCompletedNormally(f, v1);
2237 <        checkCompletedNormally(g, v2);
2237 >        checkCompletedExceptionally(g, ex);
2238      }}
2239  
2240      /**
2241       * applyToEither result completes exceptionally if either source cancelled
2242       */
2243 <    public void testApplyToEither_sourceCancelled1() {
2243 >    public void testApplyToEither_sourceCancelled() {
2244          for (ExecutionMode m : ExecutionMode.values())
2245          for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1851        for (boolean createIncomplete : new boolean[] { true, false })
1852        for (boolean fFirst : new boolean[] { true, false })
2246          for (Integer v1 : new Integer[] { 1, null })
2247      {
2248          final CompletableFuture<Integer> f = new CompletableFuture<>();
2249          final CompletableFuture<Integer> g = new CompletableFuture<>();
2250 <        final IncFunction r = new IncFunction(m);
2250 >        final IncFunction[] rs = new IncFunction[6];
2251 >        for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2252  
2253 <        if (!createIncomplete) assertTrue((fFirst ? f : g).cancel(mayInterruptIfRunning));
2254 <        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2255 <        if (createIncomplete) {
2256 <            checkIncomplete(h);
2257 <            assertEquals(0, r.invocationCount);
2258 <            assertTrue((fFirst ? f : g).cancel(mayInterruptIfRunning));
2253 >        final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2254 >        final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2255 >        checkIncomplete(h0);
2256 >        checkIncomplete(h1);
2257 >        rs[0].assertNotInvoked();
2258 >        rs[1].assertNotInvoked();
2259 >        f.cancel(mayInterruptIfRunning);
2260 >        checkCompletedWithWrappedCancellationException(h0);
2261 >        checkCompletedWithWrappedCancellationException(h1);
2262 >        final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2263 >        final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2264 >        checkCompletedWithWrappedCancellationException(h2);
2265 >        checkCompletedWithWrappedCancellationException(h3);
2266 >        g.complete(v1);
2267 >
2268 >        // unspecified behavior - both source completions available
2269 >        final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2270 >        final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2271 >        try {
2272 >            assertEquals(inc(v1), h4.join());
2273 >            rs[4].assertValue(inc(v1));
2274 >        } catch (CompletionException ok) {
2275 >            checkCompletedWithWrappedCancellationException(h4);
2276 >            rs[4].assertNotInvoked();
2277 >        }
2278 >        try {
2279 >            assertEquals(inc(v1), h5.join());
2280 >            rs[5].assertValue(inc(v1));
2281 >        } catch (CompletionException ok) {
2282 >            checkCompletedWithWrappedCancellationException(h5);
2283 >            rs[5].assertNotInvoked();
2284          }
2285  
2286 <        checkCompletedWithWrappedCancellationException(h);
2287 <        (!fFirst ? f : g).complete(v1);
2288 <
2289 <        assertEquals(0, r.invocationCount);
2290 <        checkCompletedNormally(!fFirst ? f : g, v1);
2291 <        checkCancelled(fFirst ? f : g);
2292 <        checkCompletedWithWrappedCancellationException(h);
2286 >        checkCancelled(f);
2287 >        checkCompletedNormally(g, v1);
2288 >        checkCompletedWithWrappedCancellationException(h0);
2289 >        checkCompletedWithWrappedCancellationException(h1);
2290 >        checkCompletedWithWrappedCancellationException(h2);
2291 >        checkCompletedWithWrappedCancellationException(h3);
2292 >        for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2293      }}
2294  
2295      public void testApplyToEither_sourceCancelled2() {
2296          for (ExecutionMode m : ExecutionMode.values())
2297          for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1879        for (boolean reverseArgs : new boolean[] { true, false })
2298          for (boolean fFirst : new boolean[] { true, false })
2299          for (Integer v1 : new Integer[] { 1, null })
2300      {
2301          final CompletableFuture<Integer> f = new CompletableFuture<>();
2302          final CompletableFuture<Integer> g = new CompletableFuture<>();
2303 <        final IncFunction r1 = new IncFunction(m);
2304 <        final IncFunction r2 = new IncFunction(m);
1887 <        final CFException ex = new CFException();
1888 <        final CompletableFuture<Integer> j = (reverseArgs ? g : f);
1889 <        final CompletableFuture<Integer> k = (reverseArgs ? f : g);
2303 >        final IncFunction[] rs = new IncFunction[6];
2304 >        for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2305  
2306 <        final CompletableFuture<Integer> h1 = m.applyToEither(j, k, r1);
2307 <        if (fFirst) {
2308 <            f.complete(v1);
2309 <            assertTrue(g.cancel(mayInterruptIfRunning));
2310 <        } else {
2311 <            assertTrue(g.cancel(mayInterruptIfRunning));
1897 <            f.complete(v1);
1898 <        }
1899 <        final CompletableFuture<Integer> h2 = m.applyToEither(j, k, r2);
2306 >        final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2307 >        final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2308 >        assertTrue(fFirst ? f.complete(v1) : g.cancel(mayInterruptIfRunning));
2309 >        assertTrue(!fFirst ? f.complete(v1) : g.cancel(mayInterruptIfRunning));
2310 >        final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2311 >        final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2312  
2313 <        // unspecified behavior
2313 >        // unspecified behavior - both source completions available
2314 >        try {
2315 >            assertEquals(inc(v1), h0.join());
2316 >            rs[0].assertValue(inc(v1));
2317 >        } catch (CompletionException ok) {
2318 >            checkCompletedWithWrappedCancellationException(h0);
2319 >            rs[0].assertNotInvoked();
2320 >        }
2321          try {
2322              assertEquals(inc(v1), h1.join());
2323 <            assertEquals(1, r1.invocationCount);
2323 >            rs[1].assertValue(inc(v1));
2324          } catch (CompletionException ok) {
2325              checkCompletedWithWrappedCancellationException(h1);
2326 <            assertEquals(0, r1.invocationCount);
2326 >            rs[1].assertNotInvoked();
2327          }
1909
2328          try {
2329              assertEquals(inc(v1), h2.join());
2330 <            assertEquals(1, r2.invocationCount);
2330 >            rs[2].assertValue(inc(v1));
2331          } catch (CompletionException ok) {
2332              checkCompletedWithWrappedCancellationException(h2);
2333 <            assertEquals(0, r2.invocationCount);
2333 >            rs[2].assertNotInvoked();
2334 >        }
2335 >        try {
2336 >            assertEquals(inc(v1), h3.join());
2337 >            rs[3].assertValue(inc(v1));
2338 >        } catch (CompletionException ok) {
2339 >            checkCompletedWithWrappedCancellationException(h3);
2340 >            rs[3].assertNotInvoked();
2341          }
2342  
1918        checkCancelled(g);
2343          checkCompletedNormally(f, v1);
2344 +        checkCancelled(g);
2345      }}
2346  
2347      /**
2348 <     * acceptEither result completes normally after normal completion
1924 <     * of either source
2348 >     * applyToEither result completes exceptionally if action does
2349       */
2350 <    public void testAcceptEither_normalCompletion1() {
2350 >    public void testApplyToEither_actionFailed() {
2351          for (ExecutionMode m : ExecutionMode.values())
2352          for (Integer v1 : new Integer[] { 1, null })
2353          for (Integer v2 : new Integer[] { 2, null })
2354      {
2355          final CompletableFuture<Integer> f = new CompletableFuture<>();
2356          final CompletableFuture<Integer> g = new CompletableFuture<>();
2357 <        final IncAction r = new IncAction();
2358 <        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2357 >        final FailingFunction[] rs = new FailingFunction[6];
2358 >        for (int i = 0; i < rs.length; i++) rs[i] = new FailingFunction(m);
2359  
2360 +        final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2361 +        final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2362          f.complete(v1);
2363 <        checkCompletedNormally(h, null);
2364 <        assertEquals(inc(v1), r.value);
2365 <        g.complete(v2);
2366 <
2367 <        checkCompletedNormally(f, v1);
2368 <        checkCompletedNormally(g, v2);
2369 <        checkCompletedNormally(h, null);
1944 <    }}
1945 <
1946 <    public void testAcceptEither_normalCompletion2() {
1947 <        for (ExecutionMode m : ExecutionMode.values())
1948 <        for (Integer v1 : new Integer[] { 1, null })
1949 <        for (Integer v2 : new Integer[] { 2, null })
1950 <    {
1951 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
1952 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
1953 <        final IncAction r = new IncAction();
1954 <        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2363 >        final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2364 >        final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2365 >        checkCompletedWithWrappedCFException(h0);
2366 >        checkCompletedWithWrappedCFException(h1);
2367 >        checkCompletedWithWrappedCFException(h2);
2368 >        checkCompletedWithWrappedCFException(h3);
2369 >        for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2370  
2371          g.complete(v2);
2372 <        checkCompletedNormally(h, null);
2373 <        assertEquals(inc(v2), r.value);
2374 <        f.complete(v1);
2372 >
2373 >        // unspecified behavior - both source completions available
2374 >        final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2375 >        final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2376 >
2377 >        checkCompletedWithWrappedCFException(h4);
2378 >        assertTrue(Objects.equals(v1, rs[4].value) ||
2379 >                   Objects.equals(v2, rs[4].value));
2380 >        checkCompletedWithWrappedCFException(h5);
2381 >        assertTrue(Objects.equals(v1, rs[5].value) ||
2382 >                   Objects.equals(v2, rs[5].value));
2383  
2384          checkCompletedNormally(f, v1);
2385          checkCompletedNormally(g, v2);
1963        checkCompletedNormally(h, null);
2386      }}
2387  
2388 <    public void testAcceptEither_normalCompletion3() {
2388 >    /**
2389 >     * acceptEither result completes normally after normal completion
2390 >     * of either source
2391 >     */
2392 >    public void testAcceptEither_normalCompletion() {
2393          for (ExecutionMode m : ExecutionMode.values())
2394          for (Integer v1 : new Integer[] { 1, null })
2395          for (Integer v2 : new Integer[] { 2, null })
2396      {
2397          final CompletableFuture<Integer> f = new CompletableFuture<>();
2398          final CompletableFuture<Integer> g = new CompletableFuture<>();
2399 <        final IncAction r = new IncAction();
2399 >        final NoopConsumer[] rs = new NoopConsumer[6];
2400 >        for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2401  
2402 +        final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2403 +        final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2404 +        checkIncomplete(h0);
2405 +        checkIncomplete(h1);
2406 +        rs[0].assertNotInvoked();
2407 +        rs[1].assertNotInvoked();
2408          f.complete(v1);
2409 +        checkCompletedNormally(h0, null);
2410 +        checkCompletedNormally(h1, null);
2411 +        rs[0].assertValue(v1);
2412 +        rs[1].assertValue(v1);
2413 +        final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2414 +        final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2415 +        checkCompletedNormally(h2, null);
2416 +        checkCompletedNormally(h3, null);
2417 +        rs[2].assertValue(v1);
2418 +        rs[3].assertValue(v1);
2419          g.complete(v2);
1977        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2420  
2421 <        checkCompletedNormally(h, null);
2421 >        // unspecified behavior - both source completions available
2422 >        final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2423 >        final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2424 >        checkCompletedNormally(h4, null);
2425 >        checkCompletedNormally(h5, null);
2426 >        assertTrue(Objects.equals(v1, rs[4].value) ||
2427 >                   Objects.equals(v2, rs[4].value));
2428 >        assertTrue(Objects.equals(v1, rs[5].value) ||
2429 >                   Objects.equals(v2, rs[5].value));
2430 >
2431          checkCompletedNormally(f, v1);
2432          checkCompletedNormally(g, v2);
2433 <
2434 <        // unspecified behavior
2435 <        assertTrue(Objects.equals(r.value, inc(v1)) ||
2436 <                   Objects.equals(r.value, inc(v2)));
2433 >        checkCompletedNormally(h0, null);
2434 >        checkCompletedNormally(h1, null);
2435 >        checkCompletedNormally(h2, null);
2436 >        checkCompletedNormally(h3, null);
2437 >        for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2438      }}
2439  
2440      /**
2441       * acceptEither result completes exceptionally after exceptional
2442       * completion of either source
2443       */
2444 <    public void testAcceptEither_exceptionalCompletion1() {
2444 >    public void testAcceptEither_exceptionalCompletion() {
2445          for (ExecutionMode m : ExecutionMode.values())
2446          for (Integer v1 : new Integer[] { 1, null })
2447      {
2448          final CompletableFuture<Integer> f = new CompletableFuture<>();
2449          final CompletableFuture<Integer> g = new CompletableFuture<>();
1998        final IncAction r = new IncAction();
1999        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2450          final CFException ex = new CFException();
2451 +        final NoopConsumer[] rs = new NoopConsumer[6];
2452 +        for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2453  
2454 +        final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2455 +        final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2456 +        checkIncomplete(h0);
2457 +        checkIncomplete(h1);
2458 +        rs[0].assertNotInvoked();
2459 +        rs[1].assertNotInvoked();
2460          f.completeExceptionally(ex);
2461 <        checkCompletedWithWrappedCFException(h, ex);
2461 >        checkCompletedWithWrappedException(h0, ex);
2462 >        checkCompletedWithWrappedException(h1, ex);
2463 >        final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2464 >        final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2465 >        checkCompletedWithWrappedException(h2, ex);
2466 >        checkCompletedWithWrappedException(h3, ex);
2467 >
2468          g.complete(v1);
2469  
2470 <        assertEquals(0, r.invocationCount);
2470 >        // unspecified behavior - both source completions available
2471 >        final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2472 >        final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2473 >        try {
2474 >            assertNull(h4.join());
2475 >            rs[4].assertValue(v1);
2476 >        } catch (CompletionException ok) {
2477 >            checkCompletedWithWrappedException(h4, ex);
2478 >            rs[4].assertNotInvoked();
2479 >        }
2480 >        try {
2481 >            assertNull(h5.join());
2482 >            rs[5].assertValue(v1);
2483 >        } catch (CompletionException ok) {
2484 >            checkCompletedWithWrappedException(h5, ex);
2485 >            rs[5].assertNotInvoked();
2486 >        }
2487 >
2488 >        checkCompletedExceptionally(f, ex);
2489          checkCompletedNormally(g, v1);
2490 <        checkCompletedWithWrappedCFException(f, ex);
2491 <        checkCompletedWithWrappedCFException(h, ex);
2490 >        checkCompletedWithWrappedException(h0, ex);
2491 >        checkCompletedWithWrappedException(h1, ex);
2492 >        checkCompletedWithWrappedException(h2, ex);
2493 >        checkCompletedWithWrappedException(h3, ex);
2494 >        checkCompletedWithWrappedException(h4, ex);
2495 >        for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2496      }}
2497  
2498      public void testAcceptEither_exceptionalCompletion2() {
2499          for (ExecutionMode m : ExecutionMode.values())
2500 +        for (boolean fFirst : new boolean[] { true, false })
2501          for (Integer v1 : new Integer[] { 1, null })
2502      {
2503          final CompletableFuture<Integer> f = new CompletableFuture<>();
2504          final CompletableFuture<Integer> g = new CompletableFuture<>();
2018        final IncAction r = new IncAction();
2019        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2020        final CFException ex = new CFException();
2021
2022        g.completeExceptionally(ex);
2023        checkCompletedWithWrappedCFException(h, ex);
2024        f.complete(v1);
2025
2026        assertEquals(0, r.invocationCount);
2027        checkCompletedNormally(f, v1);
2028        checkCompletedWithWrappedCFException(g, ex);
2029        checkCompletedWithWrappedCFException(h, ex);
2030    }}
2031
2032    public void testAcceptEither_exceptionalCompletion3() {
2033        for (ExecutionMode m : ExecutionMode.values())
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 IncAction r = new IncAction();
2505          final CFException ex = new CFException();
2506 +        final NoopConsumer[] rs = new NoopConsumer[6];
2507 +        for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2508  
2509 <        g.completeExceptionally(ex);
2510 <        f.complete(v1);
2511 <        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2509 >        final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2510 >        final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2511 >        assertTrue(fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2512 >        assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2513 >        final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2514 >        final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2515  
2516 <        // unspecified behavior
2046 <        Integer v;
2516 >        // unspecified behavior - both source completions available
2517          try {
2518 <            assertNull(h.join());
2519 <            assertEquals(1, r.invocationCount);
2050 <            assertEquals(inc(v1), r.value);
2518 >            assertEquals(null, h0.join());
2519 >            rs[0].assertValue(v1);
2520          } catch (CompletionException ok) {
2521 <            checkCompletedWithWrappedCFException(h, ex);
2522 <            assertEquals(0, r.invocationCount);
2521 >            checkCompletedWithWrappedException(h0, ex);
2522 >            rs[0].assertNotInvoked();
2523          }
2055
2056        checkCompletedWithWrappedCFException(g, ex);
2057        checkCompletedNormally(f, v1);
2058    }}
2059
2060    public void testAcceptEither_exceptionalCompletion4() {
2061        for (ExecutionMode m : ExecutionMode.values())
2062        for (Integer v1 : new Integer[] { 1, null })
2063    {
2064        final CompletableFuture<Integer> f = new CompletableFuture<>();
2065        final CompletableFuture<Integer> g = new CompletableFuture<>();
2066        final IncAction r = new IncAction();
2067        final CFException ex = new CFException();
2068
2069        f.completeExceptionally(ex);
2070        g.complete(v1);
2071        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2072
2073        // unspecified behavior
2074        Integer v;
2524          try {
2525 <            assertNull(h.join());
2526 <            assertEquals(1, r.invocationCount);
2078 <            assertEquals(inc(v1), r.value);
2525 >            assertEquals(null, h1.join());
2526 >            rs[1].assertValue(v1);
2527          } catch (CompletionException ok) {
2528 <            checkCompletedWithWrappedCFException(h, ex);
2529 <            assertEquals(0, r.invocationCount);
2528 >            checkCompletedWithWrappedException(h1, ex);
2529 >            rs[1].assertNotInvoked();
2530 >        }
2531 >        try {
2532 >            assertEquals(null, h2.join());
2533 >            rs[2].assertValue(v1);
2534 >        } catch (CompletionException ok) {
2535 >            checkCompletedWithWrappedException(h2, ex);
2536 >            rs[2].assertNotInvoked();
2537 >        }
2538 >        try {
2539 >            assertEquals(null, h3.join());
2540 >            rs[3].assertValue(v1);
2541 >        } catch (CompletionException ok) {
2542 >            checkCompletedWithWrappedException(h3, ex);
2543 >            rs[3].assertNotInvoked();
2544          }
2545  
2084        checkCompletedWithWrappedCFException(f, ex);
2085        checkCompletedNormally(g, v1);
2086    }}
2087
2088    /**
2089     * acceptEither result completes exceptionally if action does
2090     */
2091    public void testAcceptEither_actionFailed1() {
2092        for (ExecutionMode m : ExecutionMode.values())
2093        for (Integer v1 : new Integer[] { 1, null })
2094        for (Integer v2 : new Integer[] { 2, null })
2095    {
2096        final CompletableFuture<Integer> f = new CompletableFuture<>();
2097        final CompletableFuture<Integer> g = new CompletableFuture<>();
2098        final FailingConsumer r = new FailingConsumer(m);
2099        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2100
2101        f.complete(v1);
2102        checkCompletedWithWrappedCFException(h);
2103        g.complete(v2);
2104        checkCompletedNormally(f, v1);
2105        checkCompletedNormally(g, v2);
2106    }}
2107
2108    public void testAcceptEither_actionFailed2() {
2109        for (ExecutionMode m : ExecutionMode.values())
2110        for (Integer v1 : new Integer[] { 1, null })
2111        for (Integer v2 : new Integer[] { 2, null })
2112    {
2113        final CompletableFuture<Integer> f = new CompletableFuture<>();
2114        final CompletableFuture<Integer> g = new CompletableFuture<>();
2115        final FailingConsumer r = new FailingConsumer(m);
2116        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2117
2118        g.complete(v2);
2119        checkCompletedWithWrappedCFException(h);
2120        f.complete(v1);
2546          checkCompletedNormally(f, v1);
2547 <        checkCompletedNormally(g, v2);
2547 >        checkCompletedExceptionally(g, ex);
2548      }}
2549  
2550      /**
2551       * acceptEither result completes exceptionally if either source cancelled
2552       */
2553 <    public void testAcceptEither_sourceCancelled1() {
2129 <        for (ExecutionMode m : ExecutionMode.values())
2130 <        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2131 <        for (Integer v1 : new Integer[] { 1, null })
2132 <    {
2133 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
2134 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
2135 <        final IncAction r = new IncAction();
2136 <        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2137 <
2138 <        assertTrue(f.cancel(mayInterruptIfRunning));
2139 <        checkCompletedWithWrappedCancellationException(h);
2140 <        g.complete(v1);
2141 <
2142 <        checkCancelled(f);
2143 <        assertEquals(0, r.invocationCount);
2144 <        checkCompletedNormally(g, v1);
2145 <        checkCompletedWithWrappedCancellationException(h);
2146 <    }}
2147 <
2148 <    public void testAcceptEither_sourceCancelled2() {
2553 >    public void testAcceptEither_sourceCancelled() {
2554          for (ExecutionMode m : ExecutionMode.values())
2555          for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2556          for (Integer v1 : new Integer[] { 1, null })
2557      {
2558          final CompletableFuture<Integer> f = new CompletableFuture<>();
2559          final CompletableFuture<Integer> g = new CompletableFuture<>();
2560 <        final IncAction r = new IncAction();
2561 <        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2157 <
2158 <        assertTrue(g.cancel(mayInterruptIfRunning));
2159 <        checkCompletedWithWrappedCancellationException(h);
2160 <        f.complete(v1);
2161 <
2162 <        checkCancelled(g);
2163 <        assertEquals(0, r.invocationCount);
2164 <        checkCompletedNormally(f, v1);
2165 <        checkCompletedWithWrappedCancellationException(h);
2166 <    }}
2560 >        final NoopConsumer[] rs = new NoopConsumer[6];
2561 >        for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2562  
2563 <    public void testAcceptEither_sourceCancelled3() {
2564 <        for (ExecutionMode m : ExecutionMode.values())
2565 <        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2566 <        for (Integer v1 : new Integer[] { 1, null })
2567 <    {
2568 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
2569 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
2570 <        final IncAction r = new IncAction();
2563 >        final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2564 >        final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2565 >        checkIncomplete(h0);
2566 >        checkIncomplete(h1);
2567 >        rs[0].assertNotInvoked();
2568 >        rs[1].assertNotInvoked();
2569 >        f.cancel(mayInterruptIfRunning);
2570 >        checkCompletedWithWrappedCancellationException(h0);
2571 >        checkCompletedWithWrappedCancellationException(h1);
2572 >        final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2573 >        final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2574 >        checkCompletedWithWrappedCancellationException(h2);
2575 >        checkCompletedWithWrappedCancellationException(h3);
2576  
2577 <        assertTrue(g.cancel(mayInterruptIfRunning));
2178 <        f.complete(v1);
2179 <        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2577 >        g.complete(v1);
2578  
2579 <        // unspecified behavior
2580 <        Integer v;
2579 >        // unspecified behavior - both source completions available
2580 >        final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2581 >        final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2582          try {
2583 <            assertNull(h.join());
2584 <            assertEquals(1, r.invocationCount);
2186 <            assertEquals(inc(v1), r.value);
2583 >            assertNull(h4.join());
2584 >            rs[4].assertValue(v1);
2585          } catch (CompletionException ok) {
2586 <            checkCompletedWithWrappedCancellationException(h);
2587 <            assertEquals(0, r.invocationCount);
2586 >            checkCompletedWithWrappedCancellationException(h4);
2587 >            rs[4].assertNotInvoked();
2588          }
2191
2192        checkCancelled(g);
2193        checkCompletedNormally(f, v1);
2194    }}
2195
2196    public void testAcceptEither_sourceCancelled4() {
2197        for (ExecutionMode m : ExecutionMode.values())
2198        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2199        for (Integer v1 : new Integer[] { 1, null })
2200    {
2201        final CompletableFuture<Integer> f = new CompletableFuture<>();
2202        final CompletableFuture<Integer> g = new CompletableFuture<>();
2203        final IncAction r = new IncAction();
2204
2205        assertTrue(f.cancel(mayInterruptIfRunning));
2206        g.complete(v1);
2207        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2208
2209        // unspecified behavior
2210        Integer v;
2589          try {
2590 <            assertNull(h.join());
2591 <            assertEquals(1, r.invocationCount);
2214 <            assertEquals(inc(v1), r.value);
2590 >            assertNull(h5.join());
2591 >            rs[5].assertValue(v1);
2592          } catch (CompletionException ok) {
2593 <            checkCompletedWithWrappedCancellationException(h);
2594 <            assertEquals(0, r.invocationCount);
2593 >            checkCompletedWithWrappedCancellationException(h5);
2594 >            rs[5].assertNotInvoked();
2595          }
2596  
2597          checkCancelled(f);
2598          checkCompletedNormally(g, v1);
2599 +        checkCompletedWithWrappedCancellationException(h0);
2600 +        checkCompletedWithWrappedCancellationException(h1);
2601 +        checkCompletedWithWrappedCancellationException(h2);
2602 +        checkCompletedWithWrappedCancellationException(h3);
2603 +        for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2604      }}
2605  
2606      /**
2607 <     * runAfterEither result completes normally after normal completion
2226 <     * of either source
2607 >     * acceptEither result completes exceptionally if action does
2608       */
2609 <    public void testRunAfterEither_normalCompletion1() {
2609 >    public void testAcceptEither_actionFailed() {
2610          for (ExecutionMode m : ExecutionMode.values())
2611          for (Integer v1 : new Integer[] { 1, null })
2612          for (Integer v2 : new Integer[] { 2, null })
2613      {
2614          final CompletableFuture<Integer> f = new CompletableFuture<>();
2615          final CompletableFuture<Integer> g = new CompletableFuture<>();
2616 <        final Noop r = new Noop(m);
2617 <        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2616 >        final FailingConsumer[] rs = new FailingConsumer[6];
2617 >        for (int i = 0; i < rs.length; i++) rs[i] = new FailingConsumer(m);
2618  
2619 +        final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2620 +        final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2621          f.complete(v1);
2622 <        checkCompletedNormally(h, null);
2623 <        assertEquals(1, r.invocationCount);
2622 >        final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2623 >        final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2624 >        checkCompletedWithWrappedCFException(h0);
2625 >        checkCompletedWithWrappedCFException(h1);
2626 >        checkCompletedWithWrappedCFException(h2);
2627 >        checkCompletedWithWrappedCFException(h3);
2628 >        for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2629 >
2630          g.complete(v2);
2631  
2632 +        // unspecified behavior - both source completions available
2633 +        final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2634 +        final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2635 +
2636 +        checkCompletedWithWrappedCFException(h4);
2637 +        assertTrue(Objects.equals(v1, rs[4].value) ||
2638 +                   Objects.equals(v2, rs[4].value));
2639 +        checkCompletedWithWrappedCFException(h5);
2640 +        assertTrue(Objects.equals(v1, rs[5].value) ||
2641 +                   Objects.equals(v2, rs[5].value));
2642 +
2643          checkCompletedNormally(f, v1);
2644          checkCompletedNormally(g, v2);
2245        checkCompletedNormally(h, null);
2246        assertEquals(1, r.invocationCount);
2645      }}
2646  
2647 <    public void testRunAfterEither_normalCompletion2() {
2647 >    /**
2648 >     * runAfterEither result completes normally after normal completion
2649 >     * of either source
2650 >     */
2651 >    public void testRunAfterEither_normalCompletion() {
2652          for (ExecutionMode m : ExecutionMode.values())
2653          for (Integer v1 : new Integer[] { 1, null })
2654          for (Integer v2 : new Integer[] { 2, null })
2655      {
2656          final CompletableFuture<Integer> f = new CompletableFuture<>();
2657          final CompletableFuture<Integer> g = new CompletableFuture<>();
2658 <        final Noop r = new Noop(m);
2659 <        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2658 >        final Noop[] rs = new Noop[6];
2659 >        for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2660  
2661 <        g.complete(v2);
2662 <        checkCompletedNormally(h, null);
2663 <        assertEquals(1, r.invocationCount);
2661 >        final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2662 >        final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2663 >        checkIncomplete(h0);
2664 >        checkIncomplete(h1);
2665 >        rs[0].assertNotInvoked();
2666 >        rs[1].assertNotInvoked();
2667          f.complete(v1);
2668 +        checkCompletedNormally(h0, null);
2669 +        checkCompletedNormally(h1, null);
2670 +        rs[0].assertInvoked();
2671 +        rs[1].assertInvoked();
2672 +        final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2673 +        final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2674 +        checkCompletedNormally(h2, null);
2675 +        checkCompletedNormally(h3, null);
2676 +        rs[2].assertInvoked();
2677 +        rs[3].assertInvoked();
2678  
2264        checkCompletedNormally(f, v1);
2265        checkCompletedNormally(g, v2);
2266        checkCompletedNormally(h, null);
2267        assertEquals(1, r.invocationCount);
2268        }}
2269
2270    public void testRunAfterEither_normalCompletion3() {
2271        for (ExecutionMode m : ExecutionMode.values())
2272        for (Integer v1 : new Integer[] { 1, null })
2273        for (Integer v2 : new Integer[] { 2, null })
2274    {
2275        final CompletableFuture<Integer> f = new CompletableFuture<>();
2276        final CompletableFuture<Integer> g = new CompletableFuture<>();
2277        final Noop r = new Noop(m);
2278
2279        f.complete(v1);
2679          g.complete(v2);
2281        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2680  
2681 <        checkCompletedNormally(h, null);
2681 >        final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2682 >        final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2683 >
2684          checkCompletedNormally(f, v1);
2685          checkCompletedNormally(g, v2);
2686 <        assertEquals(1, r.invocationCount);
2686 >        checkCompletedNormally(h0, null);
2687 >        checkCompletedNormally(h1, null);
2688 >        checkCompletedNormally(h2, null);
2689 >        checkCompletedNormally(h3, null);
2690 >        checkCompletedNormally(h4, null);
2691 >        checkCompletedNormally(h5, null);
2692 >        for (int i = 0; i < 6; i++) rs[i].assertInvoked();
2693      }}
2694  
2695      /**
2696       * runAfterEither result completes exceptionally after exceptional
2697       * completion of either source
2698       */
2699 <    public void testRunAfterEither_exceptionalCompletion1() {
2699 >    public void testRunAfterEither_exceptionalCompletion() {
2700          for (ExecutionMode m : ExecutionMode.values())
2701          for (Integer v1 : new Integer[] { 1, null })
2702      {
2703          final CompletableFuture<Integer> f = new CompletableFuture<>();
2704          final CompletableFuture<Integer> g = new CompletableFuture<>();
2299        final Noop r = new Noop(m);
2300        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2705          final CFException ex = new CFException();
2706 +        final Noop[] rs = new Noop[6];
2707 +        for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2708  
2709 <        f.completeExceptionally(ex);
2710 <        checkCompletedWithWrappedCFException(h, ex);
2711 <        g.complete(v1);
2709 >        final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2710 >        final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2711 >        checkIncomplete(h0);
2712 >        checkIncomplete(h1);
2713 >        rs[0].assertNotInvoked();
2714 >        rs[1].assertNotInvoked();
2715 >        assertTrue(f.completeExceptionally(ex));
2716 >        checkCompletedWithWrappedException(h0, ex);
2717 >        checkCompletedWithWrappedException(h1, ex);
2718 >        final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2719 >        final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2720 >        checkCompletedWithWrappedException(h2, ex);
2721 >        checkCompletedWithWrappedException(h3, ex);
2722  
2723 <        assertEquals(0, r.invocationCount);
2308 <        checkCompletedNormally(g, v1);
2309 <        checkCompletedWithWrappedCFException(f, ex);
2310 <        checkCompletedWithWrappedCFException(h, ex);
2311 <    }}
2723 >        assertTrue(g.complete(v1));
2724  
2725 <    public void testRunAfterEither_exceptionalCompletion2() {
2726 <        for (ExecutionMode m : ExecutionMode.values())
2727 <        for (Integer v1 : new Integer[] { 1, null })
2316 <    {
2317 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
2318 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
2319 <        final Noop r = new Noop(m);
2320 <        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2321 <        final CFException ex = new CFException();
2322 <
2323 <        g.completeExceptionally(ex);
2324 <        checkCompletedWithWrappedCFException(h, ex);
2325 <        f.complete(v1);
2326 <
2327 <        assertEquals(0, r.invocationCount);
2328 <        checkCompletedNormally(f, v1);
2329 <        checkCompletedWithWrappedCFException(g, ex);
2330 <        checkCompletedWithWrappedCFException(h, ex);
2331 <    }}
2332 <
2333 <    public void testRunAfterEither_exceptionalCompletion3() {
2334 <        for (ExecutionMode m : ExecutionMode.values())
2335 <        for (Integer v1 : new Integer[] { 1, null })
2336 <    {
2337 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
2338 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
2339 <        final Noop r = new Noop(m);
2340 <        final CFException ex = new CFException();
2341 <
2342 <        g.completeExceptionally(ex);
2343 <        f.complete(v1);
2344 <        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2345 <
2346 <        // unspecified behavior
2347 <        Integer v;
2725 >        // unspecified behavior - both source completions available
2726 >        final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2727 >        final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2728          try {
2729 <            assertNull(h.join());
2730 <            assertEquals(1, r.invocationCount);
2729 >            assertNull(h4.join());
2730 >            rs[4].assertInvoked();
2731          } catch (CompletionException ok) {
2732 <            checkCompletedWithWrappedCFException(h, ex);
2733 <            assertEquals(0, r.invocationCount);
2732 >            checkCompletedWithWrappedException(h4, ex);
2733 >            rs[4].assertNotInvoked();
2734          }
2355
2356        checkCompletedWithWrappedCFException(g, ex);
2357        checkCompletedNormally(f, v1);
2358    }}
2359
2360    public void testRunAfterEither_exceptionalCompletion4() {
2361        for (ExecutionMode m : ExecutionMode.values())
2362        for (Integer v1 : new Integer[] { 1, null })
2363    {
2364        final CompletableFuture<Integer> f = new CompletableFuture<>();
2365        final CompletableFuture<Integer> g = new CompletableFuture<>();
2366        final Noop r = new Noop(m);
2367        final CFException ex = new CFException();
2368
2369        f.completeExceptionally(ex);
2370        g.complete(v1);
2371        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2372
2373        // unspecified behavior
2374        Integer v;
2735          try {
2736 <            assertNull(h.join());
2737 <            assertEquals(1, r.invocationCount);
2736 >            assertNull(h5.join());
2737 >            rs[5].assertInvoked();
2738          } catch (CompletionException ok) {
2739 <            checkCompletedWithWrappedCFException(h, ex);
2740 <            assertEquals(0, r.invocationCount);
2739 >            checkCompletedWithWrappedException(h5, ex);
2740 >            rs[5].assertNotInvoked();
2741          }
2742  
2743 <        checkCompletedWithWrappedCFException(f, ex);
2743 >        checkCompletedExceptionally(f, ex);
2744          checkCompletedNormally(g, v1);
2745 +        checkCompletedWithWrappedException(h0, ex);
2746 +        checkCompletedWithWrappedException(h1, ex);
2747 +        checkCompletedWithWrappedException(h2, ex);
2748 +        checkCompletedWithWrappedException(h3, ex);
2749 +        checkCompletedWithWrappedException(h4, ex);
2750 +        for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2751      }}
2752  
2753 <    /**
2388 <     * runAfterEither result completes exceptionally if action does
2389 <     */
2390 <    public void testRunAfterEither_actionFailed1() {
2753 >    public void testRunAfterEither_exceptionalCompletion2() {
2754          for (ExecutionMode m : ExecutionMode.values())
2755 +        for (boolean fFirst : new boolean[] { true, false })
2756          for (Integer v1 : new Integer[] { 1, null })
2393        for (Integer v2 : new Integer[] { 2, null })
2757      {
2758          final CompletableFuture<Integer> f = new CompletableFuture<>();
2759          final CompletableFuture<Integer> g = new CompletableFuture<>();
2760 <        final FailingRunnable r = new FailingRunnable(m);
2761 <        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2760 >        final CFException ex = new CFException();
2761 >        final Noop[] rs = new Noop[6];
2762 >        for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2763  
2764 <        f.complete(v1);
2765 <        checkCompletedWithWrappedCFException(h);
2766 <        g.complete(v2);
2767 <        checkCompletedNormally(f, v1);
2768 <        checkCompletedNormally(g, v2);
2769 <    }}
2764 >        final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2765 >        final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2766 >        assertTrue( fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2767 >        assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2768 >        final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2769 >        final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2770  
2771 <    public void testRunAfterEither_actionFailed2() {
2772 <        for (ExecutionMode m : ExecutionMode.values())
2773 <        for (Integer v1 : new Integer[] { 1, null })
2774 <        for (Integer v2 : new Integer[] { 2, null })
2775 <    {
2776 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
2777 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
2778 <        final FailingRunnable r = new FailingRunnable(m);
2779 <        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2771 >        // unspecified behavior - both source completions available
2772 >        try {
2773 >            assertEquals(null, h0.join());
2774 >            rs[0].assertInvoked();
2775 >        } catch (CompletionException ok) {
2776 >            checkCompletedWithWrappedException(h0, ex);
2777 >            rs[0].assertNotInvoked();
2778 >        }
2779 >        try {
2780 >            assertEquals(null, h1.join());
2781 >            rs[1].assertInvoked();
2782 >        } catch (CompletionException ok) {
2783 >            checkCompletedWithWrappedException(h1, ex);
2784 >            rs[1].assertNotInvoked();
2785 >        }
2786 >        try {
2787 >            assertEquals(null, h2.join());
2788 >            rs[2].assertInvoked();
2789 >        } catch (CompletionException ok) {
2790 >            checkCompletedWithWrappedException(h2, ex);
2791 >            rs[2].assertNotInvoked();
2792 >        }
2793 >        try {
2794 >            assertEquals(null, h3.join());
2795 >            rs[3].assertInvoked();
2796 >        } catch (CompletionException ok) {
2797 >            checkCompletedWithWrappedException(h3, ex);
2798 >            rs[3].assertNotInvoked();
2799 >        }
2800  
2417        g.complete(v2);
2418        checkCompletedWithWrappedCFException(h);
2419        f.complete(v1);
2801          checkCompletedNormally(f, v1);
2802 <        checkCompletedNormally(g, v2);
2802 >        checkCompletedExceptionally(g, ex);
2803      }}
2804  
2805      /**
2806       * runAfterEither result completes exceptionally if either source cancelled
2807       */
2808 <    public void testRunAfterEither_sourceCancelled1() {
2808 >    public void testRunAfterEither_sourceCancelled() {
2809          for (ExecutionMode m : ExecutionMode.values())
2810          for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2811          for (Integer v1 : new Integer[] { 1, null })
2812      {
2813          final CompletableFuture<Integer> f = new CompletableFuture<>();
2814          final CompletableFuture<Integer> g = new CompletableFuture<>();
2815 <        final Noop r = new Noop(m);
2816 <        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2436 <
2437 <        assertTrue(f.cancel(mayInterruptIfRunning));
2438 <        checkCompletedWithWrappedCancellationException(h);
2439 <        g.complete(v1);
2440 <
2441 <        checkCancelled(f);
2442 <        assertEquals(0, r.invocationCount);
2443 <        checkCompletedNormally(g, v1);
2444 <        checkCompletedWithWrappedCancellationException(h);
2445 <    }}
2446 <
2447 <    public void testRunAfterEither_sourceCancelled2() {
2448 <        for (ExecutionMode m : ExecutionMode.values())
2449 <        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2450 <        for (Integer v1 : new Integer[] { 1, null })
2451 <    {
2452 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
2453 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
2454 <        final Noop r = new Noop(m);
2455 <        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2456 <
2457 <        assertTrue(g.cancel(mayInterruptIfRunning));
2458 <        checkCompletedWithWrappedCancellationException(h);
2459 <        f.complete(v1);
2460 <
2461 <        checkCancelled(g);
2462 <        assertEquals(0, r.invocationCount);
2463 <        checkCompletedNormally(f, v1);
2464 <        checkCompletedWithWrappedCancellationException(h);
2465 <    }}
2815 >        final Noop[] rs = new Noop[6];
2816 >        for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2817  
2818 <    public void testRunAfterEither_sourceCancelled3() {
2819 <        for (ExecutionMode m : ExecutionMode.values())
2820 <        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2821 <        for (Integer v1 : new Integer[] { 1, null })
2822 <    {
2823 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
2824 <        final CompletableFuture<Integer> g = new CompletableFuture<>();
2825 <        final Noop r = new Noop(m);
2826 <
2827 <        assertTrue(g.cancel(mayInterruptIfRunning));
2828 <        f.complete(v1);
2829 <        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2830 <
2831 <        // unspecified behavior
2832 <        Integer v;
2818 >        final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2819 >        final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2820 >        checkIncomplete(h0);
2821 >        checkIncomplete(h1);
2822 >        rs[0].assertNotInvoked();
2823 >        rs[1].assertNotInvoked();
2824 >        f.cancel(mayInterruptIfRunning);
2825 >        checkCompletedWithWrappedCancellationException(h0);
2826 >        checkCompletedWithWrappedCancellationException(h1);
2827 >        final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2828 >        final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2829 >        checkCompletedWithWrappedCancellationException(h2);
2830 >        checkCompletedWithWrappedCancellationException(h3);
2831 >
2832 >        assertTrue(g.complete(v1));
2833 >
2834 >        // unspecified behavior - both source completions available
2835 >        final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2836 >        final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2837          try {
2838 <            assertNull(h.join());
2839 <            assertEquals(1, r.invocationCount);
2838 >            assertNull(h4.join());
2839 >            rs[4].assertInvoked();
2840          } catch (CompletionException ok) {
2841 <            checkCompletedWithWrappedCancellationException(h);
2842 <            assertEquals(0, r.invocationCount);
2841 >            checkCompletedWithWrappedCancellationException(h4);
2842 >            rs[4].assertNotInvoked();
2843 >        }
2844 >        try {
2845 >            assertNull(h5.join());
2846 >            rs[5].assertInvoked();
2847 >        } catch (CompletionException ok) {
2848 >            checkCompletedWithWrappedCancellationException(h5);
2849 >            rs[5].assertNotInvoked();
2850          }
2851  
2852 <        checkCancelled(g);
2853 <        checkCompletedNormally(f, v1);
2852 >        checkCancelled(f);
2853 >        checkCompletedNormally(g, v1);
2854 >        checkCompletedWithWrappedCancellationException(h0);
2855 >        checkCompletedWithWrappedCancellationException(h1);
2856 >        checkCompletedWithWrappedCancellationException(h2);
2857 >        checkCompletedWithWrappedCancellationException(h3);
2858 >        for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2859      }}
2860  
2861 <    public void testRunAfterEither_sourceCancelled4() {
2861 >    /**
2862 >     * runAfterEither result completes exceptionally if action does
2863 >     */
2864 >    public void testRunAfterEither_actionFailed() {
2865          for (ExecutionMode m : ExecutionMode.values())
2496        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2866          for (Integer v1 : new Integer[] { 1, null })
2867 +        for (Integer v2 : new Integer[] { 2, null })
2868      {
2869          final CompletableFuture<Integer> f = new CompletableFuture<>();
2870          final CompletableFuture<Integer> g = new CompletableFuture<>();
2871 <        final Noop r = new Noop(m);
2872 <
2503 <        assertTrue(f.cancel(mayInterruptIfRunning));
2504 <        g.complete(v1);
2505 <        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2871 >        final FailingRunnable[] rs = new FailingRunnable[6];
2872 >        for (int i = 0; i < rs.length; i++) rs[i] = new FailingRunnable(m);
2873  
2874 <        // unspecified behavior
2875 <        Integer v;
2876 <        try {
2877 <            assertNull(h.join());
2878 <            assertEquals(1, r.invocationCount);
2879 <        } catch (CompletionException ok) {
2880 <            checkCompletedWithWrappedCancellationException(h);
2881 <            assertEquals(0, r.invocationCount);
2882 <        }
2874 >        final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2875 >        final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2876 >        assertTrue(f.complete(v1));
2877 >        final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2878 >        final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2879 >        checkCompletedWithWrappedCFException(h0);
2880 >        checkCompletedWithWrappedCFException(h1);
2881 >        checkCompletedWithWrappedCFException(h2);
2882 >        checkCompletedWithWrappedCFException(h3);
2883 >        for (int i = 0; i < 4; i++) rs[i].assertInvoked();
2884 >        assertTrue(g.complete(v2));
2885 >        final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2886 >        final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2887 >        checkCompletedWithWrappedCFException(h4);
2888 >        checkCompletedWithWrappedCFException(h5);
2889  
2890 <        checkCancelled(f);
2891 <        checkCompletedNormally(g, v1);
2890 >        checkCompletedNormally(f, v1);
2891 >        checkCompletedNormally(g, v2);
2892 >        for (int i = 0; i < 6; i++) rs[i].assertInvoked();
2893      }}
2894  
2895      /**
# Line 2528 | Line 2902 | public class CompletableFutureTest exten
2902      {
2903          final CompletableFuture<Integer> f = new CompletableFuture<>();
2904          final CompletableFutureInc r = new CompletableFutureInc(m);
2905 <        if (!createIncomplete) f.complete(v1);
2905 >        if (!createIncomplete) assertTrue(f.complete(v1));
2906          final CompletableFuture<Integer> g = m.thenCompose(f, r);
2907 <        if (createIncomplete) f.complete(v1);
2907 >        if (createIncomplete) assertTrue(f.complete(v1));
2908  
2909          checkCompletedNormally(g, inc(v1));
2910          checkCompletedNormally(f, v1);
2911 <        assertEquals(1, r.invocationCount);
2911 >        r.assertValue(v1);
2912      }}
2913  
2914      /**
# Line 2552 | Line 2926 | public class CompletableFutureTest exten
2926          final CompletableFuture<Integer> g = m.thenCompose(f, r);
2927          if (createIncomplete) f.completeExceptionally(ex);
2928  
2929 <        checkCompletedWithWrappedCFException(g, ex);
2930 <        checkCompletedWithWrappedCFException(f, ex);
2931 <        assertEquals(0, r.invocationCount);
2929 >        checkCompletedWithWrappedException(g, ex);
2930 >        checkCompletedExceptionally(f, ex);
2931 >        r.assertNotInvoked();
2932      }}
2933  
2934      /**
# Line 2568 | Line 2942 | public class CompletableFutureTest exten
2942          final CompletableFuture<Integer> f = new CompletableFuture<>();
2943          final FailingCompletableFutureFunction r
2944              = new FailingCompletableFutureFunction(m);
2945 <        if (!createIncomplete) f.complete(v1);
2945 >        if (!createIncomplete) assertTrue(f.complete(v1));
2946          final CompletableFuture<Integer> g = m.thenCompose(f, r);
2947 <        if (createIncomplete) f.complete(v1);
2947 >        if (createIncomplete) assertTrue(f.complete(v1));
2948  
2949          checkCompletedWithWrappedCFException(g);
2950          checkCompletedNormally(f, v1);
# Line 2613 | Line 2987 | public class CompletableFutureTest exten
2987       * when all components complete normally
2988       */
2989      public void testAllOf_normal() throws Exception {
2990 <        for (int k = 1; k < 20; ++k) {
2991 <            CompletableFuture<Integer>[] fs = (CompletableFuture<Integer>[]) new CompletableFuture[k];
2992 <            for (int i = 0; i < k; ++i)
2990 >        for (int k = 1; k < 10; k++) {
2991 >            CompletableFuture<Integer>[] fs
2992 >                = (CompletableFuture<Integer>[]) new CompletableFuture[k];
2993 >            for (int i = 0; i < k; i++)
2994 >                fs[i] = new CompletableFuture<>();
2995 >            CompletableFuture<Void> f = CompletableFuture.allOf(fs);
2996 >            for (int i = 0; i < k; i++) {
2997 >                checkIncomplete(f);
2998 >                checkIncomplete(CompletableFuture.allOf(fs));
2999 >                fs[i].complete(one);
3000 >            }
3001 >            checkCompletedNormally(f, null);
3002 >            checkCompletedNormally(CompletableFuture.allOf(fs), null);
3003 >        }
3004 >    }
3005 >
3006 >    public void testAllOf_backwards() throws Exception {
3007 >        for (int k = 1; k < 10; k++) {
3008 >            CompletableFuture<Integer>[] fs
3009 >                = (CompletableFuture<Integer>[]) new CompletableFuture[k];
3010 >            for (int i = 0; i < k; i++)
3011                  fs[i] = new CompletableFuture<>();
3012              CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3013 <            for (int i = 0; i < k; ++i) {
3013 >            for (int i = k - 1; i >= 0; i--) {
3014                  checkIncomplete(f);
3015                  checkIncomplete(CompletableFuture.allOf(fs));
3016                  fs[i].complete(one);
# Line 2628 | Line 3020 | public class CompletableFutureTest exten
3020          }
3021      }
3022  
3023 +    public void testAllOf_exceptional() throws Exception {
3024 +        for (int k = 1; k < 10; k++) {
3025 +            CompletableFuture<Integer>[] fs
3026 +                = (CompletableFuture<Integer>[]) new CompletableFuture[k];
3027 +            CFException ex = new CFException();
3028 +            for (int i = 0; i < k; i++)
3029 +                fs[i] = new CompletableFuture<>();
3030 +            CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3031 +            for (int i = 0; i < k; i++) {
3032 +                checkIncomplete(f);
3033 +                checkIncomplete(CompletableFuture.allOf(fs));
3034 +                if (i != k/2) {
3035 +                    fs[i].complete(i);
3036 +                    checkCompletedNormally(fs[i], i);
3037 +                } else {
3038 +                    fs[i].completeExceptionally(ex);
3039 +                    checkCompletedExceptionally(fs[i], ex);
3040 +                }
3041 +            }
3042 +            checkCompletedWithWrappedException(f, ex);
3043 +            checkCompletedWithWrappedException(CompletableFuture.allOf(fs), ex);
3044 +        }
3045 +    }
3046 +
3047      /**
3048       * anyOf(no component futures) returns an incomplete future
3049       */
3050      public void testAnyOf_empty() throws Exception {
3051 +        for (Integer v1 : new Integer[] { 1, null })
3052 +    {
3053          CompletableFuture<Object> f = CompletableFuture.anyOf();
3054          checkIncomplete(f);
3055 <    }
3055 >
3056 >        f.complete(v1);
3057 >        checkCompletedNormally(f, v1);
3058 >    }}
3059  
3060      /**
3061       * anyOf returns a future completed normally with a value when
3062       * a component future does
3063       */
3064      public void testAnyOf_normal() throws Exception {
3065 <        for (int k = 0; k < 10; ++k) {
3065 >        for (int k = 0; k < 10; k++) {
3066              CompletableFuture[] fs = new CompletableFuture[k];
3067 <            for (int i = 0; i < k; ++i)
3067 >            for (int i = 0; i < k; i++)
3068                  fs[i] = new CompletableFuture<>();
3069              CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3070              checkIncomplete(f);
3071 <            for (int i = 0; i < k; ++i) {
3072 <                fs[i].complete(one);
3073 <                checkCompletedNormally(f, one);
3074 <                checkCompletedNormally(CompletableFuture.anyOf(fs), one);
3071 >            for (int i = 0; i < k; i++) {
3072 >                fs[i].complete(i);
3073 >                checkCompletedNormally(f, 0);
3074 >                int x = (int) CompletableFuture.anyOf(fs).join();
3075 >                assertTrue(0 <= x && x <= i);
3076 >            }
3077 >        }
3078 >    }
3079 >    public void testAnyOf_normal_backwards() throws Exception {
3080 >        for (int k = 0; k < 10; k++) {
3081 >            CompletableFuture[] fs = new CompletableFuture[k];
3082 >            for (int i = 0; i < k; i++)
3083 >                fs[i] = new CompletableFuture<>();
3084 >            CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3085 >            checkIncomplete(f);
3086 >            for (int i = k - 1; i >= 0; i--) {
3087 >                fs[i].complete(i);
3088 >                checkCompletedNormally(f, k - 1);
3089 >                int x = (int) CompletableFuture.anyOf(fs).join();
3090 >                assertTrue(i <= x && x <= k - 1);
3091              }
3092          }
3093      }
# Line 2659 | Line 3096 | public class CompletableFutureTest exten
3096       * anyOf result completes exceptionally when any component does.
3097       */
3098      public void testAnyOf_exceptional() throws Exception {
3099 <        for (int k = 0; k < 10; ++k) {
3099 >        for (int k = 0; k < 10; k++) {
3100              CompletableFuture[] fs = new CompletableFuture[k];
3101 <            for (int i = 0; i < k; ++i)
3101 >            CFException[] exs = new CFException[k];
3102 >            for (int i = 0; i < k; i++) {
3103                  fs[i] = new CompletableFuture<>();
3104 +                exs[i] = new CFException();
3105 +            }
3106              CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3107              checkIncomplete(f);
3108 <            for (int i = 0; i < k; ++i) {
3109 <                fs[i].completeExceptionally(new CFException());
3110 <                checkCompletedWithWrappedCFException(f);
3108 >            for (int i = 0; i < k; i++) {
3109 >                fs[i].completeExceptionally(exs[i]);
3110 >                checkCompletedWithWrappedException(f, exs[0]);
3111 >                checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3112 >            }
3113 >        }
3114 >    }
3115 >
3116 >    public void testAnyOf_exceptional_backwards() throws Exception {
3117 >        for (int k = 0; k < 10; k++) {
3118 >            CompletableFuture[] fs = new CompletableFuture[k];
3119 >            CFException[] exs = new CFException[k];
3120 >            for (int i = 0; i < k; i++) {
3121 >                fs[i] = new CompletableFuture<>();
3122 >                exs[i] = new CFException();
3123 >            }
3124 >            CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3125 >            checkIncomplete(f);
3126 >            for (int i = k - 1; i >= 0; i--) {
3127 >                fs[i].completeExceptionally(exs[i]);
3128 >                checkCompletedWithWrappedException(f, exs[k - 1]);
3129                  checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3130              }
3131          }
# Line 2791 | Line 3249 | public class CompletableFutureTest exten
3249          assertSame(f, f.toCompletableFuture());
3250      }
3251  
3252 <    /**
2795 <     * whenComplete action executes on normal completion, propagating
2796 <     * source result.
2797 <     */
2798 <    public void testWhenComplete_normalCompletion1() {
2799 <        for (ExecutionMode m : ExecutionMode.values())
2800 <        for (boolean createIncomplete : new boolean[] { true, false })
2801 <        for (Integer v1 : new Integer[] { 1, null })
2802 <    {
2803 <        final AtomicInteger a = new AtomicInteger(0);
2804 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
2805 <        if (!createIncomplete) f.complete(v1);
2806 <        final CompletableFuture<Integer> g = m.whenComplete
2807 <            (f,
2808 <             (Integer x, Throwable t) -> {
2809 <                threadAssertSame(x, v1);
2810 <                threadAssertNull(t);
2811 <                a.getAndIncrement();
2812 <            });
2813 <        if (createIncomplete) f.complete(v1);
3252 >    //--- tests of implementation details; not part of official tck ---
3253  
3254 <        checkCompletedNormally(g, v1);
3255 <        checkCompletedNormally(f, v1);
3256 <        assertEquals(1, a.get());
3257 <    }}
3254 >    Object resultOf(CompletableFuture<?> f) {
3255 >        try {
3256 >            java.lang.reflect.Field resultField
3257 >                = CompletableFuture.class.getDeclaredField("result");
3258 >            resultField.setAccessible(true);
3259 >            return resultField.get(f);
3260 >        } catch (Throwable t) { throw new AssertionError(t); }
3261 >    }
3262  
3263 <    /**
3264 <     * whenComplete action executes on exceptional completion, propagating
2822 <     * source result.
2823 <     */
2824 <    public void testWhenComplete_exceptionalCompletion() {
3263 >    public void testExceptionPropagationReusesResultObject() {
3264 >        if (!testImplementationDetails) return;
3265          for (ExecutionMode m : ExecutionMode.values())
2826        for (boolean createIncomplete : new boolean[] { true, false })
2827        for (Integer v1 : new Integer[] { 1, null })
3266      {
2829        final AtomicInteger a = new AtomicInteger(0);
3267          final CFException ex = new CFException();
3268 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
3269 <        if (!createIncomplete) f.completeExceptionally(ex);
2833 <        final CompletableFuture<Integer> g = m.whenComplete
2834 <            (f,
2835 <             (Integer x, Throwable t) -> {
2836 <                threadAssertNull(x);
2837 <                threadAssertSame(t, ex);
2838 <                a.getAndIncrement();
2839 <            });
2840 <        if (createIncomplete) f.completeExceptionally(ex);
2841 <        checkCompletedWithWrappedCFException(f, ex);
2842 <        checkCompletedWithWrappedCFException(g, ex);
2843 <        assertEquals(1, a.get());
2844 <    }}
3268 >        final CompletableFuture<Integer> v42 = CompletableFuture.completedFuture(42);
3269 >        final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3270  
3271 <    /**
3272 <     * whenComplete action executes on cancelled source, propagating
2848 <     * CancellationException.
2849 <     */
2850 <    public void testWhenComplete_sourceCancelled() {
2851 <        for (ExecutionMode m : ExecutionMode.values())
2852 <        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2853 <        for (boolean createIncomplete : new boolean[] { true, false })
2854 <    {
2855 <        final AtomicInteger a = new AtomicInteger(0);
2856 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
2857 <        if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
2858 <        final CompletableFuture<Integer> g = m.whenComplete
2859 <            (f,
2860 <             (Integer x, Throwable t) -> {
2861 <                threadAssertNull(x);
2862 <                threadAssertTrue(t instanceof CancellationException);
2863 <                a.getAndIncrement();
2864 <            });
2865 <        if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
3271 >        List<Function<CompletableFuture<Integer>, CompletableFuture<?>>> funs
3272 >            = new ArrayList<>();
3273  
3274 <        //try { g.join(); } catch (Throwable t) { throw new Error(t); }
3275 <        checkCompletedWithWrappedCancellationException(g);
3276 <        checkCancelled(f);
2870 <        assertEquals(1, a.get());
2871 <    }}
3274 >        funs.add((y) -> m.thenRun(y, new Noop(m)));
3275 >        funs.add((y) -> m.thenAccept(y, new NoopConsumer(m)));
3276 >        funs.add((y) -> m.thenApply(y, new IncFunction(m)));
3277  
3278 <    /**
3279 <     * If a whenComplete action throws an exception when triggered by
3280 <     * a normal completion, it completes exceptionally
2876 <     */
2877 <    public void testWhenComplete_actionFailed() {
2878 <        for (boolean createIncomplete : new boolean[] { true, false })
2879 <        for (ExecutionMode m : ExecutionMode.values())
2880 <        for (Integer v1 : new Integer[] { 1, null })
2881 <    {
2882 <        final AtomicInteger a = new AtomicInteger(0);
2883 <        final CFException ex = new CFException();
2884 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
2885 <        if (!createIncomplete) f.complete(v1);
2886 <        final CompletableFuture<Integer> g = m.whenComplete
2887 <            (f,
2888 <             (Integer x, Throwable t) -> {
2889 <                threadAssertSame(x, v1);
2890 <                threadAssertNull(t);
2891 <                a.getAndIncrement();
2892 <                throw ex;
2893 <            });
2894 <        if (createIncomplete) f.complete(v1);
2895 <        checkCompletedNormally(f, v1);
2896 <        checkCompletedWithWrappedCFException(g, ex);
2897 <        assertEquals(1, a.get());
2898 <    }}
3278 >        funs.add((y) -> m.runAfterEither(y, incomplete, new Noop(m)));
3279 >        funs.add((y) -> m.acceptEither(y, incomplete, new NoopConsumer(m)));
3280 >        funs.add((y) -> m.applyToEither(y, incomplete, new IncFunction(m)));
3281  
3282 <    /**
3283 <     * If a whenComplete action throws an exception when triggered by
3284 <     * a source completion that also throws an exception, the source
2903 <     * exception takes precedence.
2904 <     */
2905 <    public void testWhenComplete_actionFailedSourceFailed() {
2906 <        for (boolean createIncomplete : new boolean[] { true, false })
2907 <        for (ExecutionMode m : ExecutionMode.values())
2908 <        for (Integer v1 : new Integer[] { 1, null })
2909 <    {
2910 <        final AtomicInteger a = new AtomicInteger(0);
2911 <        final CFException ex1 = new CFException();
2912 <        final CFException ex2 = new CFException();
2913 <        final CompletableFuture<Integer> f = new CompletableFuture<>();
3282 >        funs.add((y) -> m.runAfterBoth(y, v42, new Noop(m)));
3283 >        funs.add((y) -> m.thenAcceptBoth(y, v42, new SubtractAction(m)));
3284 >        funs.add((y) -> m.thenCombine(y, v42, new SubtractFunction(m)));
3285  
3286 <        if (!createIncomplete) f.completeExceptionally(ex1);
2916 <        final CompletableFuture<Integer> g = m.whenComplete
2917 <            (f,
2918 <             (Integer x, Throwable t) -> {
2919 <                threadAssertSame(t, ex1);
2920 <                threadAssertNull(x);
2921 <                a.getAndIncrement();
2922 <                throw ex2;
2923 <            });
2924 <        if (createIncomplete) f.completeExceptionally(ex1);
3286 >        funs.add((y) -> m.whenComplete(y, (Integer x, Throwable t) -> {}));
3287  
3288 <        checkCompletedWithWrappedCFException(f, ex1);
3289 <        checkCompletedWithWrappedCFException(g, ex1);
3290 <        assertEquals(1, a.get());
3288 >        funs.add((y) -> m.thenCompose(y, new CompletableFutureInc(m)));
3289 >
3290 >        funs.add((y) -> CompletableFuture.allOf(new CompletableFuture<?>[] {y, v42}));
3291 >        funs.add((y) -> CompletableFuture.anyOf(new CompletableFuture<?>[] {y, incomplete}));
3292 >
3293 >        for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3294 >                 fun : funs) {
3295 >            CompletableFuture<Integer> f = new CompletableFuture<>();
3296 >            f.completeExceptionally(ex);
3297 >            CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
3298 >            checkCompletedWithWrappedException(src, ex);
3299 >            CompletableFuture<?> dep = fun.apply(src);
3300 >            checkCompletedWithWrappedException(dep, ex);
3301 >            assertSame(resultOf(src), resultOf(dep));
3302 >        }
3303 >
3304 >        for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3305 >                 fun : funs) {
3306 >            CompletableFuture<Integer> f = new CompletableFuture<>();
3307 >            CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
3308 >            CompletableFuture<?> dep = fun.apply(src);
3309 >            f.completeExceptionally(ex);
3310 >            checkCompletedWithWrappedException(src, ex);
3311 >            checkCompletedWithWrappedException(dep, ex);
3312 >            assertSame(resultOf(src), resultOf(dep));
3313 >        }
3314 >
3315 >        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3316 >        for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3317 >                 fun : funs) {
3318 >            CompletableFuture<Integer> f = new CompletableFuture<>();
3319 >            f.cancel(mayInterruptIfRunning);
3320 >            checkCancelled(f);
3321 >            CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
3322 >            checkCompletedWithWrappedCancellationException(src);
3323 >            CompletableFuture<?> dep = fun.apply(src);
3324 >            checkCompletedWithWrappedCancellationException(dep);
3325 >            assertSame(resultOf(src), resultOf(dep));
3326 >        }
3327 >
3328 >        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3329 >        for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3330 >                 fun : funs) {
3331 >            CompletableFuture<Integer> f = new CompletableFuture<>();
3332 >            CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
3333 >            CompletableFuture<?> dep = fun.apply(src);
3334 >            f.cancel(mayInterruptIfRunning);
3335 >            checkCancelled(f);
3336 >            checkCompletedWithWrappedCancellationException(src);
3337 >            checkCompletedWithWrappedCancellationException(dep);
3338 >            assertSame(resultOf(src), resultOf(dep));
3339 >        }
3340      }}
3341  
3342   }

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