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Comparing jsr166/src/test/tck/CompletableFutureTest.java (file contents):
Revision 1.9 by dl, Wed Mar 27 19:45:42 2013 UTC vs.
Revision 1.54 by jsr166, Mon Jun 2 21:32:24 2014 UTC

# Line 16 | Line 16 | import java.util.concurrent.ExecutionExc
16   import java.util.concurrent.Future;
17   import java.util.concurrent.CompletableFuture;
18   import java.util.concurrent.CompletionException;
19 + import java.util.concurrent.CompletionStage;
20 + import java.util.concurrent.ForkJoinPool;
21 + import java.util.concurrent.ForkJoinTask;
22   import java.util.concurrent.TimeoutException;
23   import java.util.concurrent.atomic.AtomicInteger;
24   import static java.util.concurrent.TimeUnit.MILLISECONDS;
# Line 53 | Line 56 | public class CompletableFutureTest exten
56          catch (Throwable fail) { threadUnexpectedException(fail); }
57      }
58  
59 <    void checkCompletedNormally(CompletableFuture<?> f, Object value) {
59 >    <T> void checkCompletedNormally(CompletableFuture<T> f, T value) {
60 >        try {
61 >            assertEquals(value, f.get(LONG_DELAY_MS, MILLISECONDS));
62 >        } catch (Throwable fail) { threadUnexpectedException(fail); }
63          try {
64              assertEquals(value, f.join());
65          } catch (Throwable fail) { threadUnexpectedException(fail); }
# Line 63 | Line 69 | public class CompletableFutureTest exten
69          try {
70              assertEquals(value, f.get());
71          } catch (Throwable fail) { threadUnexpectedException(fail); }
66        try {
67            assertEquals(value, f.get(0L, SECONDS));
68        } catch (Throwable fail) { threadUnexpectedException(fail); }
72          assertTrue(f.isDone());
73          assertFalse(f.isCancelled());
74 +        assertFalse(f.isCompletedExceptionally());
75          assertTrue(f.toString().contains("[Completed normally]"));
76      }
77  
78      void checkCompletedWithWrappedCFException(CompletableFuture<?> f) {
79          try {
80 +            f.get(LONG_DELAY_MS, MILLISECONDS);
81 +            shouldThrow();
82 +        } catch (ExecutionException success) {
83 +            assertTrue(success.getCause() instanceof CFException);
84 +        } catch (Throwable fail) { threadUnexpectedException(fail); }
85 +        try {
86              f.join();
87              shouldThrow();
88          } catch (CompletionException success) {
# Line 90 | Line 100 | public class CompletableFutureTest exten
100          } catch (ExecutionException success) {
101              assertTrue(success.getCause() instanceof CFException);
102          } catch (Throwable fail) { threadUnexpectedException(fail); }
103 +        assertTrue(f.isDone());
104 +        assertFalse(f.isCancelled());
105 +        assertTrue(f.toString().contains("[Completed exceptionally]"));
106 +    }
107 +
108 +    void checkCompletedWithWrappedCFException(CompletableFuture<?> f,
109 +                                              CFException ex) {
110          try {
111 <            f.get(0L, SECONDS);
111 >            f.get(LONG_DELAY_MS, MILLISECONDS);
112              shouldThrow();
113          } catch (ExecutionException success) {
114 <            assertTrue(success.getCause() instanceof CFException);
114 >            assertSame(ex, success.getCause());
115 >        } catch (Throwable fail) { threadUnexpectedException(fail); }
116 >        try {
117 >            f.join();
118 >            shouldThrow();
119 >        } catch (CompletionException success) {
120 >            assertSame(ex, success.getCause());
121 >        }
122 >        try {
123 >            f.getNow(null);
124 >            shouldThrow();
125 >        } catch (CompletionException success) {
126 >            assertSame(ex, success.getCause());
127 >        }
128 >        try {
129 >            f.get();
130 >            shouldThrow();
131 >        } catch (ExecutionException success) {
132 >            assertSame(ex, success.getCause());
133          } catch (Throwable fail) { threadUnexpectedException(fail); }
134          assertTrue(f.isDone());
135          assertFalse(f.isCancelled());
136 +        assertTrue(f.toString().contains("[Completed exceptionally]"));
137      }
138  
139      void checkCancelled(CompletableFuture<?> f) {
140          try {
141 +            f.get(LONG_DELAY_MS, MILLISECONDS);
142 +            shouldThrow();
143 +        } catch (CancellationException success) {
144 +        } catch (Throwable fail) { threadUnexpectedException(fail); }
145 +        try {
146              f.join();
147              shouldThrow();
148          } catch (CancellationException success) {}
# Line 114 | Line 155 | public class CompletableFutureTest exten
155              shouldThrow();
156          } catch (CancellationException success) {
157          } catch (Throwable fail) { threadUnexpectedException(fail); }
117        try {
118            f.get(0L, SECONDS);
119            shouldThrow();
120        } catch (CancellationException success) {
121        } catch (Throwable fail) { threadUnexpectedException(fail); }
158          assertTrue(f.isDone());
159 +        assertTrue(f.isCompletedExceptionally());
160          assertTrue(f.isCancelled());
161 +        assertTrue(f.toString().contains("[Completed exceptionally]"));
162      }
163  
164      void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) {
165          try {
166 +            f.get(LONG_DELAY_MS, MILLISECONDS);
167 +            shouldThrow();
168 +        } catch (ExecutionException success) {
169 +            assertTrue(success.getCause() instanceof CancellationException);
170 +        } catch (Throwable fail) { threadUnexpectedException(fail); }
171 +        try {
172              f.join();
173              shouldThrow();
174          } catch (CompletionException success) {
# Line 142 | Line 186 | public class CompletableFutureTest exten
186          } catch (ExecutionException success) {
187              assertTrue(success.getCause() instanceof CancellationException);
188          } catch (Throwable fail) { threadUnexpectedException(fail); }
145        try {
146            f.get(0L, SECONDS);
147            shouldThrow();
148        } catch (ExecutionException success) {
149            assertTrue(success.getCause() instanceof CancellationException);
150        } catch (Throwable fail) { threadUnexpectedException(fail); }
189          assertTrue(f.isDone());
190          assertFalse(f.isCancelled());
191 +        assertTrue(f.isCompletedExceptionally());
192 +        assertTrue(f.toString().contains("[Completed exceptionally]"));
193      }
194  
195      /**
# Line 157 | Line 197 | public class CompletableFutureTest exten
197       * by methods isDone, isCancelled, and getNow
198       */
199      public void testConstructor() {
200 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
200 >        CompletableFuture<Integer> f = new CompletableFuture<>();
201          checkIncomplete(f);
202      }
203  
# Line 166 | Line 206 | public class CompletableFutureTest exten
206       * isCancelled, join, get, and getNow
207       */
208      public void testComplete() {
209 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
209 >        CompletableFuture<Integer> f = new CompletableFuture<>();
210          checkIncomplete(f);
211          f.complete(one);
212          checkCompletedNormally(f, one);
# Line 177 | Line 217 | public class CompletableFutureTest exten
217       * methods isDone, isCancelled, join, get, and getNow
218       */
219      public void testCompleteExceptionally() {
220 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
220 >        CompletableFuture<Integer> f = new CompletableFuture<>();
221          checkIncomplete(f);
222          f.completeExceptionally(new CFException());
223          checkCompletedWithWrappedCFException(f);
# Line 188 | Line 228 | public class CompletableFutureTest exten
228       * methods isDone, isCancelled, join, get, and getNow
229       */
230      public void testCancel() {
231 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
231 >        CompletableFuture<Integer> f = new CompletableFuture<>();
232          checkIncomplete(f);
233          assertTrue(f.cancel(true));
234          checkCancelled(f);
# Line 198 | Line 238 | public class CompletableFutureTest exten
238       * obtrudeValue forces completion with given value
239       */
240      public void testObtrudeValue() {
241 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
241 >        CompletableFuture<Integer> f = new CompletableFuture<>();
242          checkIncomplete(f);
243          f.complete(one);
244          checkCompletedNormally(f, one);
# Line 206 | Line 246 | public class CompletableFutureTest exten
246          checkCompletedNormally(f, three);
247          f.obtrudeValue(two);
248          checkCompletedNormally(f, two);
249 <        f = new CompletableFuture<Integer>();
249 >        f = new CompletableFuture<>();
250          f.obtrudeValue(three);
251          checkCompletedNormally(f, three);
252 <        f = new CompletableFuture<Integer>();
252 >        f.obtrudeValue(null);
253 >        checkCompletedNormally(f, null);
254 >        f = new CompletableFuture<>();
255          f.completeExceptionally(new CFException());
256          f.obtrudeValue(four);
257          checkCompletedNormally(f, four);
# Line 219 | Line 261 | public class CompletableFutureTest exten
261       * obtrudeException forces completion with given exception
262       */
263      public void testObtrudeException() {
264 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
264 >        CompletableFuture<Integer> f = new CompletableFuture<>();
265          checkIncomplete(f);
266          f.complete(one);
267          checkCompletedNormally(f, one);
268          f.obtrudeException(new CFException());
269          checkCompletedWithWrappedCFException(f);
270 <        f = new CompletableFuture<Integer>();
270 >        f = new CompletableFuture<>();
271          f.obtrudeException(new CFException());
272          checkCompletedWithWrappedCFException(f);
273 <        f = new CompletableFuture<Integer>();
273 >        f = new CompletableFuture<>();
274          f.completeExceptionally(new CFException());
275          f.obtrudeValue(four);
276          checkCompletedNormally(f, four);
# Line 240 | Line 282 | public class CompletableFutureTest exten
282       * getNumberOfDependents returns number of dependent tasks
283       */
284      public void testGetNumberOfDependents() {
285 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
286 <        assertEquals(f.getNumberOfDependents(), 0);
285 >        CompletableFuture<Integer> f = new CompletableFuture<>();
286 >        assertEquals(0, f.getNumberOfDependents());
287          CompletableFuture g = f.thenRun(new Noop());
288 <        assertEquals(f.getNumberOfDependents(), 1);
289 <        assertEquals(g.getNumberOfDependents(), 0);
288 >        assertEquals(1, f.getNumberOfDependents());
289 >        assertEquals(0, g.getNumberOfDependents());
290          CompletableFuture h = f.thenRun(new Noop());
291 <        assertEquals(f.getNumberOfDependents(), 2);
291 >        assertEquals(2, f.getNumberOfDependents());
292          f.complete(1);
293          checkCompletedNormally(g, null);
294 <        assertEquals(f.getNumberOfDependents(), 0);
295 <        assertEquals(g.getNumberOfDependents(), 0);
294 >        assertEquals(0, f.getNumberOfDependents());
295 >        assertEquals(0, g.getNumberOfDependents());
296      }
297  
256
298      /**
299       * toString indicates current completion state
300       */
# Line 272 | Line 313 | public class CompletableFutureTest exten
313      }
314  
315      /**
316 <     * completedFuture returns a completed CompletableFuture with give value
316 >     * completedFuture returns a completed CompletableFuture with given value
317       */
318      public void testCompletedFuture() {
319          CompletableFuture<String> f = CompletableFuture.completedFuture("test");
320          checkCompletedNormally(f, "test");
321      }
322  
323 +    // Choose non-commutative actions for better coverage
324 +
325 +    // A non-commutative function that handles and produces null values as well.
326 +    static Integer subtract(Integer x, Integer y) {
327 +        return (x == null && y == null) ? null :
328 +            ((x == null) ? 42 : x.intValue())
329 +            - ((y == null) ? 99 : y.intValue());
330 +    }
331 +
332 +    // A function that handles and produces null values as well.
333 +    static Integer inc(Integer x) {
334 +        return (x == null) ? null : x + 1;
335 +    }
336 +
337      static final Supplier<Integer> supplyOne =
338          () -> Integer.valueOf(1);
339      static final Function<Integer, Integer> inc =
340          (Integer x) -> Integer.valueOf(x.intValue() + 1);
341 <    static final BiFunction<Integer, Integer, Integer> add =
342 <        (Integer x, Integer y) -> Integer.valueOf(x.intValue() + y.intValue());
341 >    static final BiFunction<Integer, Integer, Integer> subtract =
342 >        (Integer x, Integer y) -> subtract(x, y);
343      static final class IncAction implements Consumer<Integer> {
344 <        int value;
345 <        public void accept(Integer x) { value = x.intValue() + 1; }
344 >        int invocationCount = 0;
345 >        Integer value;
346 >        public void accept(Integer x) {
347 >            invocationCount++;
348 >            value = inc(x);
349 >        }
350 >    }
351 >    static final class IncFunction implements Function<Integer,Integer> {
352 >        int invocationCount = 0;
353 >        Integer value;
354 >        public Integer apply(Integer x) {
355 >            invocationCount++;
356 >            return value = inc(x);
357 >        }
358      }
359 <    static final class AddAction implements BiConsumer<Integer, Integer> {
360 <        int value;
359 >    static final class SubtractAction implements BiConsumer<Integer, Integer> {
360 >        int invocationCount = 0;
361 >        Integer value;
362 >        // Check this action was invoked exactly once when result is computed.
363          public void accept(Integer x, Integer y) {
364 <            value = x.intValue() + y.intValue();
364 >            invocationCount++;
365 >            value = subtract(x, y);
366 >        }
367 >    }
368 >    static final class SubtractFunction implements BiFunction<Integer, Integer, Integer> {
369 >        int invocationCount = 0;
370 >        Integer value;
371 >        // Check this action was invoked exactly once when result is computed.
372 >        public Integer apply(Integer x, Integer y) {
373 >            invocationCount++;
374 >            return value = subtract(x, y);
375          }
376      }
377      static final class Noop implements Runnable {
378 <        boolean ran;
379 <        public void run() { ran = true; }
378 >        int invocationCount = 0;
379 >        public void run() {
380 >            invocationCount++;
381 >        }
382      }
383  
384      static final class FailingSupplier implements Supplier<Integer> {
385 <        boolean ran;
386 <        public Integer get() { ran = true; throw new CFException(); }
385 >        int invocationCount = 0;
386 >        public Integer get() {
387 >            invocationCount++;
388 >            throw new CFException();
389 >        }
390      }
391      static final class FailingConsumer implements Consumer<Integer> {
392 <        boolean ran;
393 <        public void accept(Integer x) { ran = true; throw new CFException(); }
392 >        int invocationCount = 0;
393 >        public void accept(Integer x) {
394 >            invocationCount++;
395 >            throw new CFException();
396 >        }
397      }
398      static final class FailingBiConsumer implements BiConsumer<Integer, Integer> {
399 <        boolean ran;
400 <        public void accept(Integer x, Integer y) { ran = true; throw new CFException(); }
399 >        int invocationCount = 0;
400 >        public void accept(Integer x, Integer y) {
401 >            invocationCount++;
402 >            throw new CFException();
403 >        }
404      }
405      static final class FailingFunction implements Function<Integer, Integer> {
406 <        boolean ran;
407 <        public Integer apply(Integer x) { ran = true; throw new CFException(); }
406 >        int invocationCount = 0;
407 >        public Integer apply(Integer x) {
408 >            invocationCount++;
409 >            throw new CFException();
410 >        }
411      }
412      static final class FailingBiFunction implements BiFunction<Integer, Integer, Integer> {
413 <        boolean ran;
414 <        public Integer apply(Integer x, Integer y) { ran = true; throw new CFException(); }
413 >        int invocationCount = 0;
414 >        public Integer apply(Integer x, Integer y) {
415 >            invocationCount++;
416 >            throw new CFException();
417 >        }
418      }
419 <    static final class FailingNoop implements Runnable {
420 <        boolean ran;
421 <        public void run() { ran = true; throw new CFException(); }
419 >    static final class FailingRunnable implements Runnable {
420 >        int invocationCount = 0;
421 >        public void run() {
422 >            invocationCount++;
423 >            throw new CFException();
424 >        }
425      }
426  
427 <    static final class CompletableFutureInc implements Function<Integer, CompletableFuture<Integer>> {
427 >    static final class CompletableFutureInc
428 >        implements Function<Integer, CompletableFuture<Integer>> {
429 >        int invocationCount = 0;
430          public CompletableFuture<Integer> apply(Integer x) {
431 <            CompletableFuture<Integer> f = new CompletableFuture<Integer>();
432 <            f.complete(Integer.valueOf(x.intValue() + 1));
431 >            invocationCount++;
432 >            CompletableFuture<Integer> f = new CompletableFuture<>();
433 >            f.complete(inc(x));
434              return f;
435          }
436      }
437  
438 <    static final class FailingCompletableFutureFunction implements Function<Integer, CompletableFuture<Integer>> {
439 <        boolean ran;
438 >    static final class FailingCompletableFutureFunction
439 >        implements Function<Integer, CompletableFuture<Integer>> {
440 >        int invocationCount = 0;
441          public CompletableFuture<Integer> apply(Integer x) {
442 <            ran = true; throw new CFException();
442 >            invocationCount++;
443 >            throw new CFException();
444          }
445      }
446  
447      // Used for explicit executor tests
448      static final class ThreadExecutor implements Executor {
449 +        AtomicInteger count = new AtomicInteger(0);
450 +
451          public void execute(Runnable r) {
452 +            count.getAndIncrement();
453              new Thread(r).start();
454          }
455      }
456  
457 <    static final class ExceptionToInteger implements Function<Throwable, Integer> {
458 <        public Integer apply(Throwable x) { return Integer.valueOf(3); }
459 <    }
457 >    /**
458 >     * Permits the testing of parallel code for the 3 different
459 >     * execution modes without repeating all the testing code.
460 >     */
461 >    enum ExecutionMode {
462 >        DEFAULT {
463 >            public void checkExecutionMode() {
464 >                assertNull(ForkJoinTask.getPool());
465 >            }
466 >            public <T> CompletableFuture<Void> thenRun
467 >                (CompletableFuture<T> f, Runnable a) {
468 >                return f.thenRun(a);
469 >            }
470 >            public <T> CompletableFuture<Void> thenAccept
471 >                (CompletableFuture<T> f, Consumer<? super T> a) {
472 >                return f.thenAccept(a);
473 >            }
474 >            public <T,U> CompletableFuture<U> thenApply
475 >                (CompletableFuture<T> f, Function<? super T,U> a) {
476 >                return f.thenApply(a);
477 >            }
478 >            public <T,U> CompletableFuture<U> thenCompose
479 >                (CompletableFuture<T> f,
480 >                 Function<? super T,? extends CompletionStage<U>> a) {
481 >                return f.thenCompose(a);
482 >            }
483 >            public <T,U> CompletableFuture<U> handle
484 >                (CompletableFuture<T> f,
485 >                 BiFunction<? super T,Throwable,? extends U> a) {
486 >                return f.handle(a);
487 >            }
488 >            public <T> CompletableFuture<T> whenComplete
489 >                (CompletableFuture<T> f,
490 >                 BiConsumer<? super T,? super Throwable> a) {
491 >                return f.whenComplete(a);
492 >            }
493 >            public <T,U> CompletableFuture<Void> runAfterBoth
494 >                (CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) {
495 >                return f.runAfterBoth(g, a);
496 >            }
497 >            public <T,U> CompletableFuture<Void> thenAcceptBoth
498 >                (CompletableFuture<T> f,
499 >                 CompletionStage<? extends U> g,
500 >                 BiConsumer<? super T,? super U> a) {
501 >                return f.thenAcceptBoth(g, a);
502 >            }
503 >            public <T,U,V> CompletableFuture<V> thenCombine
504 >                (CompletableFuture<T> f,
505 >                 CompletionStage<? extends U> g,
506 >                 BiFunction<? super T,? super U,? extends V> a) {
507 >                return f.thenCombine(g, a);
508 >            }
509 >            public <T> CompletableFuture<Void> runAfterEither
510 >                (CompletableFuture<T> f,
511 >                 CompletionStage<?> g,
512 >                 java.lang.Runnable a) {
513 >                return f.runAfterEither(g, a);
514 >            }
515 >            public <T> CompletableFuture<Void> acceptEither
516 >                (CompletableFuture<T> f,
517 >                 CompletionStage<? extends T> g,
518 >                 Consumer<? super T> a) {
519 >                return f.acceptEither(g, a);
520 >            }
521 >            public <T,U> CompletableFuture<U> applyToEither
522 >                (CompletableFuture<T> f,
523 >                 CompletionStage<? extends T> g,
524 >                 Function<? super T,U> a) {
525 >                return f.applyToEither(g, a);
526 >            }
527 >        },
528  
529 <    static final class IntegerHandler implements BiFunction<Integer, Throwable, Integer> {
530 <        public Integer apply(Integer x, Throwable t) {
531 <            return (t == null) ? two : three;
532 <        }
533 <    }
529 >        ASYNC {
530 >            public void checkExecutionMode() {
531 >                assertSame(ForkJoinPool.commonPool(),
532 >                           ForkJoinTask.getPool());
533 >            }
534 >            public <T> CompletableFuture<Void> thenRun
535 >                (CompletableFuture<T> f, Runnable a) {
536 >                return f.thenRunAsync(a);
537 >            }
538 >            public <T> CompletableFuture<Void> thenAccept
539 >                (CompletableFuture<T> f, Consumer<? super T> a) {
540 >                return f.thenAcceptAsync(a);
541 >            }
542 >            public <T,U> CompletableFuture<U> thenApply
543 >                (CompletableFuture<T> f, Function<? super T,U> a) {
544 >                return f.thenApplyAsync(a);
545 >            }
546 >            public <T,U> CompletableFuture<U> thenCompose
547 >                (CompletableFuture<T> f,
548 >                 Function<? super T,? extends CompletionStage<U>> a) {
549 >                return f.thenComposeAsync(a);
550 >            }
551 >            public <T,U> CompletableFuture<U> handle
552 >                (CompletableFuture<T> f,
553 >                 BiFunction<? super T,Throwable,? extends U> a) {
554 >                return f.handleAsync(a);
555 >            }
556 >            public <T> CompletableFuture<T> whenComplete
557 >                (CompletableFuture<T> f,
558 >                 BiConsumer<? super T,? super Throwable> a) {
559 >                return f.whenCompleteAsync(a);
560 >            }
561 >            public <T,U> CompletableFuture<Void> runAfterBoth
562 >                (CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) {
563 >                return f.runAfterBothAsync(g, a);
564 >            }
565 >            public <T,U> CompletableFuture<Void> thenAcceptBoth
566 >                (CompletableFuture<T> f,
567 >                 CompletionStage<? extends U> g,
568 >                 BiConsumer<? super T,? super U> a) {
569 >                return f.thenAcceptBothAsync(g, a);
570 >            }
571 >            public <T,U,V> CompletableFuture<V> thenCombine
572 >                (CompletableFuture<T> f,
573 >                 CompletionStage<? extends U> g,
574 >                 BiFunction<? super T,? super U,? extends V> a) {
575 >                return f.thenCombineAsync(g, a);
576 >            }
577 >            public <T> CompletableFuture<Void> runAfterEither
578 >                (CompletableFuture<T> f,
579 >                 CompletionStage<?> g,
580 >                 java.lang.Runnable a) {
581 >                return f.runAfterEitherAsync(g, a);
582 >            }
583 >            public <T> CompletableFuture<Void> acceptEither
584 >                (CompletableFuture<T> f,
585 >                 CompletionStage<? extends T> g,
586 >                 Consumer<? super T> a) {
587 >                return f.acceptEitherAsync(g, a);
588 >            }
589 >            public <T,U> CompletableFuture<U> applyToEither
590 >                (CompletableFuture<T> f,
591 >                 CompletionStage<? extends T> g,
592 >                 Function<? super T,U> a) {
593 >                return f.applyToEitherAsync(g, a);
594 >            }
595 >        },
596 >
597 >        EXECUTOR {
598 >            public void checkExecutionMode() {
599 >                //TODO
600 >            }
601 >            public <T> CompletableFuture<Void> thenRun
602 >                (CompletableFuture<T> f, Runnable a) {
603 >                return f.thenRunAsync(a, new ThreadExecutor());
604 >            }
605 >            public <T> CompletableFuture<Void> thenAccept
606 >                (CompletableFuture<T> f, Consumer<? super T> a) {
607 >                return f.thenAcceptAsync(a, new ThreadExecutor());
608 >            }
609 >            public <T,U> CompletableFuture<U> thenApply
610 >                (CompletableFuture<T> f, Function<? super T,U> a) {
611 >                return f.thenApplyAsync(a, new ThreadExecutor());
612 >            }
613 >            public <T,U> CompletableFuture<U> thenCompose
614 >                (CompletableFuture<T> f,
615 >                 Function<? super T,? extends CompletionStage<U>> a) {
616 >                return f.thenComposeAsync(a, new ThreadExecutor());
617 >            }
618 >            public <T,U> CompletableFuture<U> handle
619 >                (CompletableFuture<T> f,
620 >                 BiFunction<? super T,Throwable,? extends U> a) {
621 >                return f.handleAsync(a, new ThreadExecutor());
622 >            }
623 >            public <T> CompletableFuture<T> whenComplete
624 >                (CompletableFuture<T> f,
625 >                 BiConsumer<? super T,? super Throwable> a) {
626 >                return f.whenCompleteAsync(a, new ThreadExecutor());
627 >            }
628 >            public <T,U> CompletableFuture<Void> runAfterBoth
629 >                (CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) {
630 >                return f.runAfterBothAsync(g, a, new ThreadExecutor());
631 >            }
632 >            public <T,U> CompletableFuture<Void> thenAcceptBoth
633 >                (CompletableFuture<T> f,
634 >                 CompletionStage<? extends U> g,
635 >                 BiConsumer<? super T,? super U> a) {
636 >                return f.thenAcceptBothAsync(g, a, new ThreadExecutor());
637 >            }
638 >            public <T,U,V> CompletableFuture<V> thenCombine
639 >                (CompletableFuture<T> f,
640 >                 CompletionStage<? extends U> g,
641 >                 BiFunction<? super T,? super U,? extends V> a) {
642 >                return f.thenCombineAsync(g, a, new ThreadExecutor());
643 >            }
644 >            public <T> CompletableFuture<Void> runAfterEither
645 >                (CompletableFuture<T> f,
646 >                 CompletionStage<?> g,
647 >                 java.lang.Runnable a) {
648 >                return f.runAfterEitherAsync(g, a, new ThreadExecutor());
649 >            }
650 >            public <T> CompletableFuture<Void> acceptEither
651 >                (CompletableFuture<T> f,
652 >                 CompletionStage<? extends T> g,
653 >                 Consumer<? super T> a) {
654 >                return f.acceptEitherAsync(g, a, new ThreadExecutor());
655 >            }
656 >            public <T,U> CompletableFuture<U> applyToEither
657 >                (CompletableFuture<T> f,
658 >                 CompletionStage<? extends T> g,
659 >                 Function<? super T,U> a) {
660 >                return f.applyToEitherAsync(g, a, new ThreadExecutor());
661 >            }
662 >        };
663 >
664 >        public abstract void checkExecutionMode();
665 >        public abstract <T> CompletableFuture<Void> thenRun
666 >            (CompletableFuture<T> f, Runnable a);
667 >        public abstract <T> CompletableFuture<Void> thenAccept
668 >            (CompletableFuture<T> f, Consumer<? super T> a);
669 >        public abstract <T,U> CompletableFuture<U> thenApply
670 >            (CompletableFuture<T> f, Function<? super T,U> a);
671 >        public abstract <T,U> CompletableFuture<U> thenCompose
672 >            (CompletableFuture<T> f,
673 >             Function<? super T,? extends CompletionStage<U>> a);
674 >        public abstract <T,U> CompletableFuture<U> handle
675 >            (CompletableFuture<T> f,
676 >             BiFunction<? super T,Throwable,? extends U> a);
677 >        public abstract <T> CompletableFuture<T> whenComplete
678 >            (CompletableFuture<T> f,
679 >             BiConsumer<? super T,? super Throwable> a);
680 >        public abstract <T,U> CompletableFuture<Void> runAfterBoth
681 >            (CompletableFuture<T> f, CompletableFuture<U> g, Runnable a);
682 >        public abstract <T,U> CompletableFuture<Void> thenAcceptBoth
683 >            (CompletableFuture<T> f,
684 >             CompletionStage<? extends U> g,
685 >             BiConsumer<? super T,? super U> a);
686 >        public abstract <T,U,V> CompletableFuture<V> thenCombine
687 >            (CompletableFuture<T> f,
688 >             CompletionStage<? extends U> g,
689 >             BiFunction<? super T,? super U,? extends V> a);
690 >        public abstract <T> CompletableFuture<Void> runAfterEither
691 >            (CompletableFuture<T> f,
692 >             CompletionStage<?> g,
693 >             java.lang.Runnable a);
694 >        public abstract <T> CompletableFuture<Void> acceptEither
695 >            (CompletableFuture<T> f,
696 >             CompletionStage<? extends T> g,
697 >             Consumer<? super T> a);
698 >        public abstract <T,U> CompletableFuture<U> applyToEither
699 >            (CompletableFuture<T> f,
700 >             CompletionStage<? extends T> g,
701 >             Function<? super T,U> a);
702 >    }
703 >
704 >    /**
705 >     * exceptionally action is not invoked when source completes
706 >     * normally, and source result is propagated
707 >     */
708 >    public void testExceptionally_normalCompletion() {
709 >        for (boolean createIncomplete : new boolean[] { true, false })
710 >        for (Integer v1 : new Integer[] { 1, null })
711 >    {
712 >        final AtomicInteger a = new AtomicInteger(0);
713 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
714 >        if (!createIncomplete) f.complete(v1);
715 >        final CompletableFuture<Integer> g = f.exceptionally
716 >            ((Throwable t) -> {
717 >                // Should not be called
718 >                a.getAndIncrement();
719 >                throw new AssertionError();
720 >            });
721 >        if (createIncomplete) f.complete(v1);
722 >
723 >        checkCompletedNormally(g, v1);
724 >        checkCompletedNormally(f, v1);
725 >        assertEquals(0, a.get());
726 >    }}
727  
728  
729      /**
730       * exceptionally action completes with function value on source
731 <     * exception;  otherwise with source value
731 >     * exception
732       */
733 <    public void testExceptionally() {
734 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
735 <        ExceptionToInteger r = new ExceptionToInteger();
736 <        CompletableFuture<Integer> g = f.exceptionally(r);
737 <        f.completeExceptionally(new CFException());
738 <        checkCompletedNormally(g, three);
739 <
740 <        f = new CompletableFuture<Integer>();
741 <        r = new ExceptionToInteger();
742 <        g = f.exceptionally(r);
743 <        f.complete(one);
744 <        checkCompletedNormally(g, one);
745 <    }
733 >    public void testExceptionally_exceptionalCompletion() {
734 >        for (boolean createIncomplete : new boolean[] { true, false })
735 >        for (Integer v1 : new Integer[] { 1, null })
736 >    {
737 >        final AtomicInteger a = new AtomicInteger(0);
738 >        final CFException ex = new CFException();
739 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
740 >        if (!createIncomplete) f.completeExceptionally(ex);
741 >        final CompletableFuture<Integer> g = f.exceptionally
742 >            ((Throwable t) -> {
743 >                threadAssertSame(t, ex);
744 >                a.getAndIncrement();
745 >                return v1;
746 >            });
747 >        if (createIncomplete) f.completeExceptionally(ex);
748 >
749 >        checkCompletedNormally(g, v1);
750 >        assertEquals(1, a.get());
751 >    }}
752 >
753 >    public void testExceptionally_exceptionalCompletionActionFailed() {
754 >        for (boolean createIncomplete : new boolean[] { true, false })
755 >        for (Integer v1 : new Integer[] { 1, null })
756 >    {
757 >        final AtomicInteger a = new AtomicInteger(0);
758 >        final CFException ex1 = new CFException();
759 >        final CFException ex2 = new CFException();
760 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
761 >        if (!createIncomplete) f.completeExceptionally(ex1);
762 >        final CompletableFuture<Integer> g = f.exceptionally
763 >            ((Throwable t) -> {
764 >                threadAssertSame(t, ex1);
765 >                a.getAndIncrement();
766 >                throw ex2;
767 >            });
768 >        if (createIncomplete) f.completeExceptionally(ex1);
769 >
770 >        checkCompletedWithWrappedCFException(g, ex2);
771 >        assertEquals(1, a.get());
772 >    }}
773 >
774 >    /**
775 >     * handle action completes normally with function value on normal
776 >     * completion of source
777 >     */
778 >    public void testHandle_normalCompletion() {
779 >        for (ExecutionMode m : ExecutionMode.values())
780 >        for (boolean createIncomplete : new boolean[] { true, false })
781 >        for (Integer v1 : new Integer[] { 1, null })
782 >    {
783 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
784 >        final AtomicInteger a = new AtomicInteger(0);
785 >        if (!createIncomplete) f.complete(v1);
786 >        final CompletableFuture<Integer> g = m.handle
787 >            (f,
788 >             (Integer x, Throwable t) -> {
789 >                threadAssertSame(x, v1);
790 >                threadAssertNull(t);
791 >                a.getAndIncrement();
792 >                return inc(v1);
793 >            });
794 >        if (createIncomplete) f.complete(v1);
795 >
796 >        checkCompletedNormally(g, inc(v1));
797 >        checkCompletedNormally(f, v1);
798 >        assertEquals(1, a.get());
799 >    }}
800  
801      /**
802 <     * handle action completes normally with function value on either
803 <     * normal or exceptional completion of source
802 >     * handle action completes normally with function value on
803 >     * exceptional completion of source
804       */
805 <    public void testHandle() {
806 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
807 <        IntegerHandler r = new IntegerHandler();
808 <        CompletableFuture<Integer> g = f.handle(r);
809 <        f.completeExceptionally(new CFException());
810 <        checkCompletedNormally(g, three);
805 >    public void testHandle_exceptionalCompletion() {
806 >        for (ExecutionMode m : ExecutionMode.values())
807 >        for (boolean createIncomplete : new boolean[] { true, false })
808 >        for (Integer v1 : new Integer[] { 1, null })
809 >    {
810 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
811 >        final AtomicInteger a = new AtomicInteger(0);
812 >        final CFException ex = new CFException();
813 >        if (!createIncomplete) f.completeExceptionally(ex);
814 >        final CompletableFuture<Integer> g = m.handle
815 >            (f,
816 >             (Integer x, Throwable t) -> {
817 >                threadAssertNull(x);
818 >                threadAssertSame(t, ex);
819 >                a.getAndIncrement();
820 >                return v1;
821 >            });
822 >        if (createIncomplete) f.completeExceptionally(ex);
823 >
824 >        checkCompletedNormally(g, v1);
825 >        checkCompletedWithWrappedCFException(f, ex);
826 >        assertEquals(1, a.get());
827 >    }}
828 >
829 >    /**
830 >     * handle action completes normally with function value on
831 >     * cancelled source
832 >     */
833 >    public void testHandle_sourceCancelled() {
834 >        for (ExecutionMode m : ExecutionMode.values())
835 >        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
836 >        for (boolean createIncomplete : new boolean[] { true, false })
837 >        for (Integer v1 : new Integer[] { 1, null })
838 >    {
839 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
840 >        final AtomicInteger a = new AtomicInteger(0);
841 >        if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
842 >        final CompletableFuture<Integer> g = m.handle
843 >            (f,
844 >             (Integer x, Throwable t) -> {
845 >                threadAssertNull(x);
846 >                threadAssertTrue(t instanceof CancellationException);
847 >                a.getAndIncrement();
848 >                return v1;
849 >            });
850 >        if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
851  
852 <        f = new CompletableFuture<Integer>();
853 <        r = new IntegerHandler();
854 <        g = f.handle(r);
855 <        f.complete(one);
856 <        checkCompletedNormally(g, two);
857 <    }
852 >        checkCompletedNormally(g, v1);
853 >        checkCancelled(f);
854 >        assertEquals(1, a.get());
855 >    }}
856 >
857 >    /**
858 >     * handle result completes exceptionally if action does
859 >     */
860 >    public void testHandle_sourceFailedActionFailed() {
861 >        for (ExecutionMode m : ExecutionMode.values())
862 >        for (boolean createIncomplete : new boolean[] { true, false })
863 >    {
864 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
865 >        final AtomicInteger a = new AtomicInteger(0);
866 >        final CFException ex1 = new CFException();
867 >        final CFException ex2 = new CFException();
868 >        if (!createIncomplete) f.completeExceptionally(ex1);
869 >        final CompletableFuture<Integer> g = m.handle
870 >            (f,
871 >             (Integer x, Throwable t) -> {
872 >                threadAssertNull(x);
873 >                threadAssertSame(ex1, t);
874 >                a.getAndIncrement();
875 >                throw ex2;
876 >            });
877 >        if (createIncomplete) f.completeExceptionally(ex1);
878 >
879 >        checkCompletedWithWrappedCFException(g, ex2);
880 >        checkCompletedWithWrappedCFException(f, ex1);
881 >        assertEquals(1, a.get());
882 >    }}
883 >
884 >    public void testHandle_sourceCompletedNormallyActionFailed() {
885 >        for (ExecutionMode m : ExecutionMode.values())
886 >        for (boolean createIncomplete : new boolean[] { true, false })
887 >        for (Integer v1 : new Integer[] { 1, null })
888 >    {
889 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
890 >        final AtomicInteger a = new AtomicInteger(0);
891 >        final CFException ex = new CFException();
892 >        if (!createIncomplete) f.complete(v1);
893 >        final CompletableFuture<Integer> g = m.handle
894 >            (f,
895 >             (Integer x, Throwable t) -> {
896 >                threadAssertSame(x, v1);
897 >                threadAssertNull(t);
898 >                a.getAndIncrement();
899 >                throw ex;
900 >            });
901 >        if (createIncomplete) f.complete(v1);
902 >
903 >        checkCompletedWithWrappedCFException(g, ex);
904 >        checkCompletedNormally(f, v1);
905 >        assertEquals(1, a.get());
906 >    }}
907  
908      /**
909       * runAsync completes after running Runnable
# Line 401 | Line 912 | public class CompletableFutureTest exten
912          Noop r = new Noop();
913          CompletableFuture<Void> f = CompletableFuture.runAsync(r);
914          assertNull(f.join());
915 <        assertTrue(r.ran);
915 >        assertEquals(1, r.invocationCount);
916 >        checkCompletedNormally(f, null);
917      }
918  
919      /**
# Line 409 | Line 921 | public class CompletableFutureTest exten
921       */
922      public void testRunAsync2() {
923          Noop r = new Noop();
924 <        CompletableFuture<Void> f = CompletableFuture.runAsync(r, new ThreadExecutor());
924 >        ThreadExecutor exec = new ThreadExecutor();
925 >        CompletableFuture<Void> f = CompletableFuture.runAsync(r, exec);
926          assertNull(f.join());
927 <        assertTrue(r.ran);
927 >        assertEquals(1, r.invocationCount);
928 >        checkCompletedNormally(f, null);
929 >        assertEquals(1, exec.count.get());
930      }
931  
932      /**
933       * failing runAsync completes exceptionally after running Runnable
934       */
935      public void testRunAsync3() {
936 <        FailingNoop r = new FailingNoop();
936 >        FailingRunnable r = new FailingRunnable();
937          CompletableFuture<Void> f = CompletableFuture.runAsync(r);
938          checkCompletedWithWrappedCFException(f);
939 <        assertTrue(r.ran);
939 >        assertEquals(1, r.invocationCount);
940      }
941  
942      /**
943       * supplyAsync completes with result of supplier
944       */
945      public void testSupplyAsync() {
946 <        CompletableFuture<Integer> f = CompletableFuture.supplyAsync(supplyOne);
946 >        CompletableFuture<Integer> f;
947 >        f = CompletableFuture.supplyAsync(supplyOne);
948          assertEquals(f.join(), one);
949 +        checkCompletedNormally(f, one);
950      }
951  
952      /**
953       * supplyAsync with executor completes with result of supplier
954       */
955      public void testSupplyAsync2() {
956 <        CompletableFuture<Integer> f = CompletableFuture.supplyAsync(supplyOne, new ThreadExecutor());
956 >        CompletableFuture<Integer> f;
957 >        f = CompletableFuture.supplyAsync(supplyOne, new ThreadExecutor());
958          assertEquals(f.join(), one);
959 +        checkCompletedNormally(f, one);
960      }
961  
962      /**
# Line 447 | Line 966 | public class CompletableFutureTest exten
966          FailingSupplier r = new FailingSupplier();
967          CompletableFuture<Integer> f = CompletableFuture.supplyAsync(r);
968          checkCompletedWithWrappedCFException(f);
969 <        assertTrue(r.ran);
969 >        assertEquals(1, r.invocationCount);
970      }
971  
972      // seq completion methods
# Line 455 | Line 974 | public class CompletableFutureTest exten
974      /**
975       * thenRun result completes normally after normal completion of source
976       */
977 <    public void testThenRun() {
978 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
979 <        Noop r = new Noop();
980 <        CompletableFuture<Void> g = f.thenRun(r);
981 <        f.complete(null);
982 <        checkCompletedNormally(g, null);
983 <        // reordered version
984 <        f = new CompletableFuture<Integer>();
985 <        f.complete(null);
986 <        r = new Noop();
987 <        g = f.thenRun(r);
977 >    public void testThenRun_normalCompletion() {
978 >        for (ExecutionMode m : ExecutionMode.values())
979 >        for (boolean createIncomplete : new boolean[] { true, false })
980 >        for (Integer v1 : new Integer[] { 1, null })
981 >    {
982 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
983 >        final Noop r = new Noop();
984 >        if (!createIncomplete) f.complete(v1);
985 >        final CompletableFuture<Void> g = m.thenRun(f, r);
986 >        if (createIncomplete) {
987 >            checkIncomplete(g);
988 >            f.complete(v1);
989 >        }
990 >
991          checkCompletedNormally(g, null);
992 <    }
992 >        checkCompletedNormally(f, v1);
993 >        assertEquals(1, r.invocationCount);
994 >    }}
995  
996      /**
997       * thenRun result completes exceptionally after exceptional
998       * completion of source
999       */
1000 <    public void testThenRun2() {
1001 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1002 <        Noop r = new Noop();
1003 <        CompletableFuture<Void> g = f.thenRun(r);
1004 <        f.completeExceptionally(new CFException());
1005 <        checkCompletedWithWrappedCFException(g);
1006 <    }
1000 >    public void testThenRun_exceptionalCompletion() {
1001 >        for (ExecutionMode m : ExecutionMode.values())
1002 >        for (boolean createIncomplete : new boolean[] { true, false })
1003 >    {
1004 >        final CFException ex = new CFException();
1005 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1006 >        final Noop r = new Noop();
1007 >        if (!createIncomplete) f.completeExceptionally(ex);
1008 >        final CompletableFuture<Void> g = m.thenRun(f, r);
1009 >        if (createIncomplete) {
1010 >            checkIncomplete(g);
1011 >            f.completeExceptionally(ex);
1012 >        }
1013  
1014 <    /**
1015 <     * thenRun result completes exceptionally if action does
1016 <     */
1017 <    public void testThenRun3() {
488 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
489 <        FailingNoop r = new FailingNoop();
490 <        CompletableFuture<Void> g = f.thenRun(r);
491 <        f.complete(null);
492 <        checkCompletedWithWrappedCFException(g);
493 <    }
1014 >        checkCompletedWithWrappedCFException(g, ex);
1015 >        checkCompletedWithWrappedCFException(f, ex);
1016 >        assertEquals(0, r.invocationCount);
1017 >    }}
1018  
1019      /**
1020       * thenRun result completes exceptionally if source cancelled
1021       */
1022 <    public void testThenRun4() {
1023 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1024 <        Noop r = new Noop();
1025 <        CompletableFuture<Void> g = f.thenRun(r);
1026 <        assertTrue(f.cancel(true));
1022 >    public void testThenRun_sourceCancelled() {
1023 >        for (ExecutionMode m : ExecutionMode.values())
1024 >        for (boolean createIncomplete : new boolean[] { true, false })
1025 >        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1026 >    {
1027 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1028 >        final Noop r = new Noop();
1029 >        if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1030 >        final CompletableFuture<Void> g = f.thenRun(r);
1031 >        if (createIncomplete) {
1032 >            checkIncomplete(g);
1033 >            assertTrue(f.cancel(mayInterruptIfRunning));
1034 >        }
1035 >
1036          checkCompletedWithWrappedCancellationException(g);
1037 <    }
1037 >        checkCancelled(f);
1038 >        assertEquals(0, r.invocationCount);
1039 >    }}
1040 >
1041 >    /**
1042 >     * thenRun result completes exceptionally if action does
1043 >     */
1044 >    public void testThenRun_actionFailed() {
1045 >        for (ExecutionMode m : ExecutionMode.values())
1046 >        for (boolean createIncomplete : new boolean[] { true, false })
1047 >        for (Integer v1 : new Integer[] { 1, null })
1048 >    {
1049 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1050 >        final FailingRunnable r = new FailingRunnable();
1051 >        if (!createIncomplete) f.complete(v1);
1052 >        final CompletableFuture<Void> g = f.thenRun(r);
1053 >        if (createIncomplete) {
1054 >            checkIncomplete(g);
1055 >            f.complete(v1);
1056 >        }
1057 >
1058 >        checkCompletedWithWrappedCFException(g);
1059 >        checkCompletedNormally(f, v1);
1060 >    }}
1061  
1062      /**
1063       * thenApply result completes normally after normal completion of source
1064       */
1065 <    public void testThenApply() {
1066 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1067 <        CompletableFuture<Integer> g = f.thenApply(inc);
1068 <        f.complete(one);
1069 <        checkCompletedNormally(g, two);
1070 <    }
1065 >    public void testThenApply_normalCompletion() {
1066 >        for (ExecutionMode m : ExecutionMode.values())
1067 >        for (boolean createIncomplete : new boolean[] { true, false })
1068 >        for (Integer v1 : new Integer[] { 1, null })
1069 >    {
1070 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1071 >        final IncFunction r = new IncFunction();
1072 >        if (!createIncomplete) f.complete(v1);
1073 >        final CompletableFuture<Integer> g = m.thenApply(f, r);
1074 >        if (createIncomplete) {
1075 >            checkIncomplete(g);
1076 >            f.complete(v1);
1077 >        }
1078 >
1079 >        checkCompletedNormally(g, inc(v1));
1080 >        checkCompletedNormally(f, v1);
1081 >        assertEquals(1, r.invocationCount);
1082 >    }}
1083  
1084      /**
1085       * thenApply result completes exceptionally after exceptional
1086       * completion of source
1087       */
1088 <    public void testThenApply2() {
1089 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1090 <        CompletableFuture<Integer> g = f.thenApply(inc);
1091 <        f.completeExceptionally(new CFException());
1092 <        checkCompletedWithWrappedCFException(g);
1093 <    }
1088 >    public void testThenApply_exceptionalCompletion() {
1089 >        for (ExecutionMode m : ExecutionMode.values())
1090 >        for (boolean createIncomplete : new boolean[] { true, false })
1091 >    {
1092 >        final CFException ex = new CFException();
1093 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1094 >        final IncFunction r = new IncFunction();
1095 >        if (!createIncomplete) f.completeExceptionally(ex);
1096 >        final CompletableFuture<Integer> g = m.thenApply(f, r);
1097 >        if (createIncomplete) {
1098 >            checkIncomplete(g);
1099 >            f.completeExceptionally(ex);
1100 >        }
1101  
1102 <    /**
1103 <     * thenApply result completes exceptionally if action does
1104 <     */
1105 <    public void testThenApply3() {
531 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
532 <        CompletableFuture<Integer> g = f.thenApply(new FailingFunction());
533 <        f.complete(one);
534 <        checkCompletedWithWrappedCFException(g);
535 <    }
1102 >        checkCompletedWithWrappedCFException(g, ex);
1103 >        checkCompletedWithWrappedCFException(f, ex);
1104 >        assertEquals(0, r.invocationCount);
1105 >    }}
1106  
1107      /**
1108       * thenApply result completes exceptionally if source cancelled
1109       */
1110 <    public void testThenApply4() {
1111 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1112 <        CompletableFuture<Integer> g = f.thenApply(inc);
1113 <        assertTrue(f.cancel(true));
1110 >    public void testThenApply_sourceCancelled() {
1111 >        for (ExecutionMode m : ExecutionMode.values())
1112 >        for (boolean createIncomplete : new boolean[] { true, false })
1113 >        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1114 >    {
1115 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1116 >        final IncFunction r = new IncFunction();
1117 >        if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1118 >        final CompletableFuture<Integer> g = f.thenApply(r);
1119 >        if (createIncomplete) {
1120 >            checkIncomplete(g);
1121 >            assertTrue(f.cancel(mayInterruptIfRunning));
1122 >        }
1123 >
1124          checkCompletedWithWrappedCancellationException(g);
1125 <    }
1125 >        checkCancelled(f);
1126 >        assertEquals(0, r.invocationCount);
1127 >    }}
1128 >
1129 >    /**
1130 >     * thenApply result completes exceptionally if action does
1131 >     */
1132 >    public void testThenApply_actionFailed() {
1133 >        for (ExecutionMode m : ExecutionMode.values())
1134 >        for (boolean createIncomplete : new boolean[] { true, false })
1135 >        for (Integer v1 : new Integer[] { 1, null })
1136 >    {
1137 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1138 >        final FailingFunction r = new FailingFunction();
1139 >        if (!createIncomplete) f.complete(v1);
1140 >        final CompletableFuture<Integer> g = f.thenApply(r);
1141 >        if (createIncomplete) {
1142 >            checkIncomplete(g);
1143 >            f.complete(v1);
1144 >        }
1145 >
1146 >        checkCompletedWithWrappedCFException(g);
1147 >        checkCompletedNormally(f, v1);
1148 >    }}
1149  
1150      /**
1151       * thenAccept result completes normally after normal completion of source
1152       */
1153 <    public void testThenAccept() {
1154 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1155 <        IncAction r = new IncAction();
1156 <        CompletableFuture<Void> g = f.thenAccept(r);
1157 <        f.complete(one);
1153 >    public void testThenAccept_normalCompletion() {
1154 >        for (ExecutionMode m : ExecutionMode.values())
1155 >        for (boolean createIncomplete : new boolean[] { true, false })
1156 >        for (Integer v1 : new Integer[] { 1, null })
1157 >    {
1158 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1159 >        final IncAction r = new IncAction();
1160 >        if (!createIncomplete) f.complete(v1);
1161 >        final CompletableFuture<Void> g = m.thenAccept(f, r);
1162 >        if (createIncomplete) {
1163 >            checkIncomplete(g);
1164 >            f.complete(v1);
1165 >        }
1166 >
1167          checkCompletedNormally(g, null);
1168 <        assertEquals(r.value, 2);
1169 <    }
1168 >        checkCompletedNormally(f, v1);
1169 >        assertEquals(1, r.invocationCount);
1170 >        assertEquals(inc(v1), r.value);
1171 >    }}
1172  
1173      /**
1174       * thenAccept result completes exceptionally after exceptional
1175       * completion of source
1176       */
1177 <    public void testThenAccept2() {
1178 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1179 <        IncAction r = new IncAction();
1180 <        CompletableFuture<Void> g = f.thenAccept(r);
1181 <        f.completeExceptionally(new CFException());
1182 <        checkCompletedWithWrappedCFException(g);
1183 <    }
1177 >    public void testThenAccept_exceptionalCompletion() {
1178 >        for (ExecutionMode m : ExecutionMode.values())
1179 >        for (boolean createIncomplete : new boolean[] { true, false })
1180 >    {
1181 >        final CFException ex = new CFException();
1182 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1183 >        final IncAction r = new IncAction();
1184 >        if (!createIncomplete) f.completeExceptionally(ex);
1185 >        final CompletableFuture<Void> g = m.thenAccept(f, r);
1186 >        if (createIncomplete) {
1187 >            checkIncomplete(g);
1188 >            f.completeExceptionally(ex);
1189 >        }
1190 >
1191 >        checkCompletedWithWrappedCFException(g, ex);
1192 >        checkCompletedWithWrappedCFException(f, ex);
1193 >        assertEquals(0, r.invocationCount);
1194 >    }}
1195  
1196      /**
1197       * thenAccept result completes exceptionally if action does
1198       */
1199 <    public void testThenAccept3() {
1200 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1201 <        FailingConsumer r = new FailingConsumer();
1202 <        CompletableFuture<Void> g = f.thenAccept(r);
1203 <        f.complete(one);
1199 >    public void testThenAccept_actionFailed() {
1200 >        for (ExecutionMode m : ExecutionMode.values())
1201 >        for (boolean createIncomplete : new boolean[] { true, false })
1202 >        for (Integer v1 : new Integer[] { 1, null })
1203 >    {
1204 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1205 >        final FailingConsumer r = new FailingConsumer();
1206 >        if (!createIncomplete) f.complete(v1);
1207 >        final CompletableFuture<Void> g = f.thenAccept(r);
1208 >        if (createIncomplete) {
1209 >            checkIncomplete(g);
1210 >            f.complete(v1);
1211 >        }
1212 >
1213          checkCompletedWithWrappedCFException(g);
1214 <        assertTrue(r.ran);
1215 <    }
1214 >        checkCompletedNormally(f, v1);
1215 >    }}
1216  
1217      /**
1218       * thenAccept result completes exceptionally if source cancelled
1219       */
1220 <    public void testThenAccept4() {
1221 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1222 <        IncAction r = new IncAction();
1223 <        CompletableFuture<Void> g = f.thenAccept(r);
1224 <        assertTrue(f.cancel(true));
1225 <        checkCompletedWithWrappedCancellationException(g);
1226 <    }
1220 >    public void testThenAccept_sourceCancelled() {
1221 >        for (ExecutionMode m : ExecutionMode.values())
1222 >        for (boolean createIncomplete : new boolean[] { true, false })
1223 >        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1224 >    {
1225 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1226 >        final IncAction r = new IncAction();
1227 >        if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1228 >        final CompletableFuture<Void> g = f.thenAccept(r);
1229 >        if (createIncomplete) {
1230 >            checkIncomplete(g);
1231 >            assertTrue(f.cancel(mayInterruptIfRunning));
1232 >        }
1233  
1234 +        checkCompletedWithWrappedCancellationException(g);
1235 +        checkCancelled(f);
1236 +        assertEquals(0, r.invocationCount);
1237 +    }}
1238  
1239      /**
1240 <     * thenCombine result completes normally after normal completion of sources
1240 >     * thenCombine result completes normally after normal completion
1241 >     * of sources
1242       */
1243 <    public void testThenCombine() {
1244 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1245 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1246 <        CompletableFuture<Integer> g = f.thenCombine(f2, add);
1247 <        f.complete(one);
1248 <        checkIncomplete(g);
1249 <        f2.complete(two);
1250 <        checkCompletedNormally(g, three);
1243 >    public void testThenCombine_normalCompletion() {
1244 >        for (ExecutionMode m : ExecutionMode.values())
1245 >        for (boolean createIncomplete : new boolean[] { true, false })
1246 >        for (boolean fFirst : new boolean[] { true, false })
1247 >        for (Integer v1 : new Integer[] { 1, null })
1248 >        for (Integer v2 : new Integer[] { 2, null })
1249 >    {
1250 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1251 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
1252 >        final SubtractFunction r = new SubtractFunction();
1253 >
1254 >        if (fFirst) f.complete(v1); else g.complete(v2);
1255 >        if (!createIncomplete)
1256 >            if (!fFirst) f.complete(v1); else g.complete(v2);
1257 >        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1258 >        if (createIncomplete) {
1259 >            checkIncomplete(h);
1260 >            assertEquals(0, r.invocationCount);
1261 >            if (!fFirst) f.complete(v1); else g.complete(v2);
1262 >        }
1263  
1264 <        f = new CompletableFuture<Integer>();
1265 <        f.complete(one);
1266 <        f2 = new CompletableFuture<Integer>();
1267 <        g = f.thenCombine(f2, add);
1268 <        checkIncomplete(g);
612 <        f2.complete(two);
613 <        checkCompletedNormally(g, three);
614 <    }
1264 >        checkCompletedNormally(h, subtract(v1, v2));
1265 >        checkCompletedNormally(f, v1);
1266 >        checkCompletedNormally(g, v2);
1267 >        assertEquals(1, r.invocationCount);
1268 >    }}
1269  
1270      /**
1271       * thenCombine result completes exceptionally after exceptional
1272       * completion of either source
1273       */
1274 <    public void testThenCombine2() {
1275 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1276 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1277 <        CompletableFuture<Integer> g = f.thenCombine(f2, add);
1278 <        f.completeExceptionally(new CFException());
1279 <        f2.complete(two);
1280 <        checkCompletedWithWrappedCFException(g);
1274 >    public void testThenCombine_exceptionalCompletion() {
1275 >        for (ExecutionMode m : ExecutionMode.values())
1276 >        for (boolean createIncomplete : new boolean[] { true, false })
1277 >        for (boolean fFirst : new boolean[] { true, false })
1278 >        for (Integer v1 : new Integer[] { 1, null })
1279 >    {
1280 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1281 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
1282 >        final CFException ex = new CFException();
1283 >        final SubtractFunction r = new SubtractFunction();
1284 >
1285 >        (fFirst ? f : g).complete(v1);
1286 >        if (!createIncomplete)
1287 >            (!fFirst ? f : g).completeExceptionally(ex);
1288 >        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1289 >        if (createIncomplete) {
1290 >            checkIncomplete(h);
1291 >            (!fFirst ? f : g).completeExceptionally(ex);
1292 >        }
1293  
1294 <        f = new CompletableFuture<Integer>();
1295 <        f.complete(one);
1296 <        f2 = new CompletableFuture<Integer>();
1297 <        g = f.thenCombine(f2, add);
1298 <        f2.completeExceptionally(new CFException());
633 <        checkCompletedWithWrappedCFException(g);
634 <    }
1294 >        checkCompletedWithWrappedCFException(h, ex);
1295 >        assertEquals(0, r.invocationCount);
1296 >        checkCompletedNormally(fFirst ? f : g, v1);
1297 >        checkCompletedWithWrappedCFException(!fFirst ? f : g, ex);
1298 >    }}
1299  
1300      /**
1301       * thenCombine result completes exceptionally if action does
1302       */
1303 <    public void testThenCombine3() {
1304 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1305 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1306 <        FailingBiFunction r = new FailingBiFunction();
1307 <        CompletableFuture<Integer> g = f.thenCombine(f2, r);
1308 <        f.complete(one);
1309 <        checkIncomplete(g);
1310 <        f2.complete(two);
1311 <        checkCompletedWithWrappedCFException(g);
1312 <    }
1303 >    public void testThenCombine_actionFailed() {
1304 >        for (ExecutionMode m : ExecutionMode.values())
1305 >        for (boolean fFirst : new boolean[] { true, false })
1306 >        for (Integer v1 : new Integer[] { 1, null })
1307 >        for (Integer v2 : new Integer[] { 2, null })
1308 >    {
1309 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1310 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
1311 >        final FailingBiFunction r = new FailingBiFunction();
1312 >        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1313 >
1314 >        if (fFirst) {
1315 >            f.complete(v1);
1316 >            g.complete(v2);
1317 >        } else {
1318 >            g.complete(v2);
1319 >            f.complete(v1);
1320 >        }
1321 >
1322 >        checkCompletedWithWrappedCFException(h);
1323 >        checkCompletedNormally(f, v1);
1324 >        checkCompletedNormally(g, v2);
1325 >    }}
1326  
1327      /**
1328       * thenCombine result completes exceptionally if either source cancelled
1329       */
1330 <    public void testThenCombine4() {
1331 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1332 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1333 <        CompletableFuture<Integer> g = f.thenCombine(f2, add);
1334 <        assertTrue(f.cancel(true));
1335 <        f2.complete(two);
1336 <        checkCompletedWithWrappedCancellationException(g);
1337 <        f = new CompletableFuture<Integer>();
1338 <        f2 = new CompletableFuture<Integer>();
1339 <        g = f.thenCombine(f2, add);
1340 <        f.complete(one);
1341 <        assertTrue(f2.cancel(true));
1342 <        checkCompletedWithWrappedCancellationException(g);
1343 <    }
1330 >    public void testThenCombine_sourceCancelled() {
1331 >        for (ExecutionMode m : ExecutionMode.values())
1332 >        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1333 >        for (boolean createIncomplete : new boolean[] { true, false })
1334 >        for (boolean fFirst : new boolean[] { true, false })
1335 >        for (Integer v1 : new Integer[] { 1, null })
1336 >    {
1337 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1338 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
1339 >        final SubtractFunction r = new SubtractFunction();
1340 >
1341 >        (fFirst ? f : g).complete(v1);
1342 >        if (!createIncomplete)
1343 >            assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
1344 >        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1345 >        if (createIncomplete) {
1346 >            checkIncomplete(h);
1347 >            assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
1348 >        }
1349 >
1350 >        checkCompletedWithWrappedCancellationException(h);
1351 >        checkCancelled(!fFirst ? f : g);
1352 >        assertEquals(0, r.invocationCount);
1353 >        checkCompletedNormally(fFirst ? f : g, v1);
1354 >    }}
1355  
1356      /**
1357       * thenAcceptBoth result completes normally after normal
1358       * completion of sources
1359       */
1360 <    public void testThenAcceptBoth() {
1361 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1362 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1363 <        AddAction r = new AddAction();
1364 <        CompletableFuture<Void> g = f.thenAcceptBoth(f2, r);
1365 <        f.complete(one);
1366 <        checkIncomplete(g);
1367 <        f2.complete(two);
1368 <        checkCompletedNormally(g, null);
1369 <        assertEquals(r.value, 3);
1360 >    public void testThenAcceptBoth_normalCompletion() {
1361 >        for (ExecutionMode m : ExecutionMode.values())
1362 >        for (boolean createIncomplete : new boolean[] { true, false })
1363 >        for (boolean fFirst : new boolean[] { true, false })
1364 >        for (Integer v1 : new Integer[] { 1, null })
1365 >        for (Integer v2 : new Integer[] { 2, null })
1366 >    {
1367 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1368 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
1369 >        final SubtractAction r = new SubtractAction();
1370 >
1371 >        if (fFirst) f.complete(v1); else g.complete(v2);
1372 >        if (!createIncomplete)
1373 >            if (!fFirst) f.complete(v1); else g.complete(v2);
1374 >        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1375 >        if (createIncomplete) {
1376 >            checkIncomplete(h);
1377 >            assertEquals(0, r.invocationCount);
1378 >            if (!fFirst) f.complete(v1); else g.complete(v2);
1379 >        }
1380  
1381 <        r = new AddAction();
1382 <        f = new CompletableFuture<Integer>();
1383 <        f.complete(one);
1384 <        f2 = new CompletableFuture<Integer>();
1385 <        g = f.thenAcceptBoth(f2, r);
688 <        checkIncomplete(g);
689 <        f2.complete(two);
690 <        checkCompletedNormally(g, null);
691 <        assertEquals(r.value, 3);
692 <    }
1381 >        checkCompletedNormally(h, null);
1382 >        assertEquals(subtract(v1, v2), r.value);
1383 >        checkCompletedNormally(f, v1);
1384 >        checkCompletedNormally(g, v2);
1385 >    }}
1386  
1387      /**
1388       * thenAcceptBoth result completes exceptionally after exceptional
1389       * completion of either source
1390       */
1391 <    public void testThenAcceptBoth2() {
1392 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1393 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1394 <        AddAction r = new AddAction();
1395 <        CompletableFuture<Void> g = f.thenAcceptBoth(f2, r);
1396 <        f.completeExceptionally(new CFException());
1397 <        f2.complete(two);
1398 <        checkCompletedWithWrappedCFException(g);
1391 >    public void testThenAcceptBoth_exceptionalCompletion() {
1392 >        for (ExecutionMode m : ExecutionMode.values())
1393 >        for (boolean createIncomplete : new boolean[] { true, false })
1394 >        for (boolean fFirst : new boolean[] { true, false })
1395 >        for (Integer v1 : new Integer[] { 1, null })
1396 >    {
1397 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1398 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
1399 >        final CFException ex = new CFException();
1400 >        final SubtractAction r = new SubtractAction();
1401 >
1402 >        (fFirst ? f : g).complete(v1);
1403 >        if (!createIncomplete)
1404 >            (!fFirst ? f : g).completeExceptionally(ex);
1405 >        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1406 >        if (createIncomplete) {
1407 >            checkIncomplete(h);
1408 >            (!fFirst ? f : g).completeExceptionally(ex);
1409 >        }
1410  
1411 <        r = new AddAction();
1412 <        f = new CompletableFuture<Integer>();
1413 <        f.complete(one);
1414 <        f2 = new CompletableFuture<Integer>();
1415 <        g = f.thenAcceptBoth(f2, r);
712 <        f2.completeExceptionally(new CFException());
713 <        checkCompletedWithWrappedCFException(g);
714 <    }
1411 >        checkCompletedWithWrappedCFException(h, ex);
1412 >        assertEquals(0, r.invocationCount);
1413 >        checkCompletedNormally(fFirst ? f : g, v1);
1414 >        checkCompletedWithWrappedCFException(!fFirst ? f : g, ex);
1415 >    }}
1416  
1417      /**
1418       * thenAcceptBoth result completes exceptionally if action does
1419       */
1420 <    public void testThenAcceptBoth3() {
1421 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1422 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1423 <        FailingBiConsumer r = new FailingBiConsumer();
1424 <        CompletableFuture<Void> g = f.thenAcceptBoth(f2, r);
1425 <        f.complete(one);
1426 <        checkIncomplete(g);
1427 <        f2.complete(two);
1428 <        checkCompletedWithWrappedCFException(g);
1429 <    }
1420 >    public void testThenAcceptBoth_actionFailed() {
1421 >        for (ExecutionMode m : ExecutionMode.values())
1422 >        for (boolean fFirst : new boolean[] { true, false })
1423 >        for (Integer v1 : new Integer[] { 1, null })
1424 >        for (Integer v2 : new Integer[] { 2, null })
1425 >    {
1426 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1427 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
1428 >        final FailingBiConsumer r = new FailingBiConsumer();
1429 >        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1430 >
1431 >        if (fFirst) {
1432 >            f.complete(v1);
1433 >            g.complete(v2);
1434 >        } else {
1435 >            g.complete(v2);
1436 >            f.complete(v1);
1437 >        }
1438 >
1439 >        checkCompletedWithWrappedCFException(h);
1440 >        checkCompletedNormally(f, v1);
1441 >        checkCompletedNormally(g, v2);
1442 >    }}
1443  
1444      /**
1445       * thenAcceptBoth result completes exceptionally if either source cancelled
1446       */
1447 <    public void testThenAcceptBoth4() {
1448 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1449 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1450 <        AddAction r = new AddAction();
1451 <        CompletableFuture<Void> g = f.thenAcceptBoth(f2, r);
1452 <        assertTrue(f.cancel(true));
1453 <        f2.complete(two);
1454 <        checkCompletedWithWrappedCancellationException(g);
1455 <        f = new CompletableFuture<Integer>();
1456 <        f2 = new CompletableFuture<Integer>();
1457 <        r = new AddAction();
1458 <        g = f.thenAcceptBoth(f2, r);
1459 <        f.complete(one);
1460 <        assertTrue(f2.cancel(true));
1461 <        checkCompletedWithWrappedCancellationException(g);
1462 <    }
1447 >    public void testThenAcceptBoth_sourceCancelled() {
1448 >        for (ExecutionMode m : ExecutionMode.values())
1449 >        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1450 >        for (boolean createIncomplete : new boolean[] { true, false })
1451 >        for (boolean fFirst : new boolean[] { true, false })
1452 >        for (Integer v1 : new Integer[] { 1, null })
1453 >    {
1454 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1455 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
1456 >        final SubtractAction r = new SubtractAction();
1457 >
1458 >        (fFirst ? f : g).complete(v1);
1459 >        if (!createIncomplete)
1460 >            assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
1461 >        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1462 >        if (createIncomplete) {
1463 >            checkIncomplete(h);
1464 >            assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
1465 >        }
1466 >
1467 >        checkCompletedWithWrappedCancellationException(h);
1468 >        checkCancelled(!fFirst ? f : g);
1469 >        assertEquals(0, r.invocationCount);
1470 >        checkCompletedNormally(fFirst ? f : g, v1);
1471 >    }}
1472  
1473      /**
1474       * runAfterBoth result completes normally after normal
1475       * completion of sources
1476       */
1477 <    public void testRunAfterBoth() {
1478 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1479 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1480 <        Noop r = new Noop();
1481 <        CompletableFuture<Void> g = f.runAfterBoth(f2, r);
1482 <        f.complete(one);
1483 <        checkIncomplete(g);
1484 <        f2.complete(two);
1485 <        checkCompletedNormally(g, null);
1486 <        assertTrue(r.ran);
1477 >    public void testRunAfterBoth_normalCompletion() {
1478 >        for (ExecutionMode m : ExecutionMode.values())
1479 >        for (boolean createIncomplete : new boolean[] { true, false })
1480 >        for (boolean fFirst : new boolean[] { true, false })
1481 >        for (Integer v1 : new Integer[] { 1, null })
1482 >        for (Integer v2 : new Integer[] { 2, null })
1483 >    {
1484 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1485 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
1486 >        final Noop r = new Noop();
1487 >
1488 >        if (fFirst) f.complete(v1); else g.complete(v2);
1489 >        if (!createIncomplete)
1490 >            if (!fFirst) f.complete(v1); else g.complete(v2);
1491 >        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1492 >        if (createIncomplete) {
1493 >            checkIncomplete(h);
1494 >            assertEquals(0, r.invocationCount);
1495 >            if (!fFirst) f.complete(v1); else g.complete(v2);
1496 >        }
1497  
1498 <        r = new Noop();
1499 <        f = new CompletableFuture<Integer>();
1500 <        f.complete(one);
1501 <        f2 = new CompletableFuture<Integer>();
1502 <        g = f.runAfterBoth(f2, r);
770 <        checkIncomplete(g);
771 <        f2.complete(two);
772 <        checkCompletedNormally(g, null);
773 <        assertTrue(r.ran);
774 <    }
1498 >        checkCompletedNormally(h, null);
1499 >        assertEquals(1, r.invocationCount);
1500 >        checkCompletedNormally(f, v1);
1501 >        checkCompletedNormally(g, v2);
1502 >    }}
1503  
1504      /**
1505       * runAfterBoth result completes exceptionally after exceptional
1506       * completion of either source
1507       */
1508 <    public void testRunAfterBoth2() {
1509 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1510 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1511 <        Noop r = new Noop();
1512 <        CompletableFuture<Void> g = f.runAfterBoth(f2, r);
1513 <        f.completeExceptionally(new CFException());
1514 <        f2.complete(two);
1515 <        checkCompletedWithWrappedCFException(g);
1508 >    public void testRunAfterBoth_exceptionalCompletion() {
1509 >        for (ExecutionMode m : ExecutionMode.values())
1510 >        for (boolean createIncomplete : new boolean[] { true, false })
1511 >        for (boolean fFirst : new boolean[] { true, false })
1512 >        for (Integer v1 : new Integer[] { 1, null })
1513 >    {
1514 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1515 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
1516 >        final CFException ex = new CFException();
1517 >        final Noop r = new Noop();
1518 >
1519 >        (fFirst ? f : g).complete(v1);
1520 >        if (!createIncomplete)
1521 >            (!fFirst ? f : g).completeExceptionally(ex);
1522 >        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1523 >        if (createIncomplete) {
1524 >            checkIncomplete(h);
1525 >            (!fFirst ? f : g).completeExceptionally(ex);
1526 >        }
1527  
1528 <        r = new Noop();
1529 <        f = new CompletableFuture<Integer>();
1530 <        f.complete(one);
1531 <        f2 = new CompletableFuture<Integer>();
1532 <        g = f.runAfterBoth(f2, r);
794 <        f2.completeExceptionally(new CFException());
795 <        checkCompletedWithWrappedCFException(g);
796 <    }
1528 >        checkCompletedWithWrappedCFException(h, ex);
1529 >        assertEquals(0, r.invocationCount);
1530 >        checkCompletedNormally(fFirst ? f : g, v1);
1531 >        checkCompletedWithWrappedCFException(!fFirst ? f : g, ex);
1532 >    }}
1533  
1534      /**
1535       * runAfterBoth result completes exceptionally if action does
1536       */
1537 <    public void testRunAfterBoth3() {
1538 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1539 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1540 <        FailingNoop r = new FailingNoop();
1541 <        CompletableFuture<Void> g = f.runAfterBoth(f2, r);
1542 <        f.complete(one);
1543 <        checkIncomplete(g);
1544 <        f2.complete(two);
1545 <        checkCompletedWithWrappedCFException(g);
1546 <    }
1547 <
1548 <    /**
1549 <     * runAfterBoth result completes exceptionally if either source cancelled
1550 <     */
1551 <    public void testRunAfterBoth4() {
1552 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1553 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1554 <        Noop r = new Noop();
1555 <        CompletableFuture<Void> g = f.runAfterBoth(f2, r);
820 <        assertTrue(f.cancel(true));
821 <        f2.complete(two);
822 <        checkCompletedWithWrappedCancellationException(g);
823 <        f = new CompletableFuture<Integer>();
824 <        f2 = new CompletableFuture<Integer>();
825 <        r = new Noop();
826 <        g = f.runAfterBoth(f2, r);
827 <        f.complete(one);
828 <        assertTrue(f2.cancel(true));
829 <        checkCompletedWithWrappedCancellationException(g);
830 <    }
831 <
832 <    /**
833 <     * applyToEither result completes normally after normal completion
834 <     * of either source
835 <     */
836 <    public void testApplyToEither() {
837 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
838 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
839 <        CompletableFuture<Integer> g = f.applyToEither(f2, inc);
840 <        f.complete(one);
841 <        checkCompletedNormally(g, two);
842 <        f2.complete(one);
843 <        checkCompletedNormally(g, two);
1537 >    public void testRunAfterBoth_actionFailed() {
1538 >        for (ExecutionMode m : ExecutionMode.values())
1539 >        for (boolean fFirst : new boolean[] { true, false })
1540 >        for (Integer v1 : new Integer[] { 1, null })
1541 >        for (Integer v2 : new Integer[] { 2, null })
1542 >    {
1543 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1544 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
1545 >        final FailingRunnable r = new FailingRunnable();
1546 >
1547 >        CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r);
1548 >        if (fFirst) {
1549 >            f.complete(v1);
1550 >            g.complete(v2);
1551 >        } else {
1552 >            g.complete(v2);
1553 >            f.complete(v1);
1554 >        }
1555 >        CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r);
1556  
1557 <        f = new CompletableFuture<Integer>();
1558 <        f.complete(one);
1559 <        f2 = new CompletableFuture<Integer>();
1560 <        g = f.applyToEither(f2, inc);
1561 <        checkCompletedNormally(g, two);
850 <    }
1557 >        checkCompletedWithWrappedCFException(h1);
1558 >        checkCompletedWithWrappedCFException(h2);
1559 >        checkCompletedNormally(f, v1);
1560 >        checkCompletedNormally(g, v2);
1561 >    }}
1562  
1563      /**
1564 <     * applyToEither result completes exceptionally after exceptional
854 <     * completion of either source
855 <     */
856 <    public void testApplyToEither2() {
857 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
858 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
859 <        CompletableFuture<Integer> g = f.applyToEither(f2, inc);
860 <        f.completeExceptionally(new CFException());
861 <        f2.complete(one);
862 <        checkCompletedWithWrappedCFException(g);
863 <
864 <        f = new CompletableFuture<Integer>();
865 <        f2 = new CompletableFuture<Integer>();
866 <        f2.completeExceptionally(new CFException());
867 <        g = f.applyToEither(f2, inc);
868 <        checkCompletedWithWrappedCFException(g);
869 <    }
870 <
871 <    /**
872 <     * applyToEither result completes exceptionally if action does
1564 >     * runAfterBoth result completes exceptionally if either source cancelled
1565       */
1566 <    public void testApplyToEither3() {
1567 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1568 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1569 <        FailingFunction r = new FailingFunction();
1570 <        CompletableFuture<Integer> g = f.applyToEither(f2, r);
1571 <        f2.complete(two);
1572 <        checkCompletedWithWrappedCFException(g);
1573 <    }
1566 >    public void testRunAfterBoth_sourceCancelled() {
1567 >        for (ExecutionMode m : ExecutionMode.values())
1568 >        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1569 >        for (boolean createIncomplete : new boolean[] { true, false })
1570 >        for (boolean fFirst : new boolean[] { true, false })
1571 >        for (Integer v1 : new Integer[] { 1, null })
1572 >    {
1573 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1574 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
1575 >        final Noop r = new Noop();
1576 >
1577 >
1578 >        (fFirst ? f : g).complete(v1);
1579 >        if (!createIncomplete)
1580 >            assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
1581 >        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1582 >        if (createIncomplete) {
1583 >            checkIncomplete(h);
1584 >            assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
1585 >        }
1586  
1587 <    /**
1588 <     * applyToEither result completes exceptionally if either source cancelled
1589 <     */
1590 <    public void testApplyToEither4() {
1591 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
888 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
889 <        CompletableFuture<Integer> g = f.applyToEither(f2, inc);
890 <        assertTrue(f.cancel(true));
891 <        checkCompletedWithWrappedCancellationException(g);
892 <        f = new CompletableFuture<Integer>();
893 <        f2 = new CompletableFuture<Integer>();
894 <        assertTrue(f2.cancel(true));
895 <        checkCompletedWithWrappedCancellationException(g);
896 <    }
1587 >        checkCompletedWithWrappedCancellationException(h);
1588 >        checkCancelled(!fFirst ? f : g);
1589 >        assertEquals(0, r.invocationCount);
1590 >        checkCompletedNormally(fFirst ? f : g, v1);
1591 >    }}
1592  
1593      /**
1594 <     * acceptEither result completes normally after normal completion
1594 >     * applyToEither result completes normally after normal completion
1595       * of either source
1596       */
1597 <    public void testAcceptEither() {
1598 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1599 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1600 <        IncAction r = new IncAction();
1601 <        CompletableFuture<Void> g = f.acceptEither(f2, r);
1602 <        f.complete(one);
1603 <        checkCompletedNormally(g, null);
1604 <        f2.complete(one);
1605 <        checkCompletedNormally(g, null);
1606 <        assertEquals(r.value, 2);
1607 <
1608 <        r = new IncAction();
1609 <        f = new CompletableFuture<Integer>();
1610 <        f.complete(one);
1611 <        f2 = new CompletableFuture<Integer>();
1612 <        g = f.acceptEither(f2, r);
1613 <        checkCompletedNormally(g, null);
1614 <        assertEquals(r.value, 2);
1615 <    }
1616 <
1617 <    /**
923 <     * acceptEither result completes exceptionally after exceptional
924 <     * completion of either source
925 <     */
926 <    public void testAcceptEither2() {
927 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
928 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
929 <        IncAction r = new IncAction();
930 <        CompletableFuture<Void> g = f.acceptEither(f2, r);
931 <        f.completeExceptionally(new CFException());
932 <        f2.complete(one);
933 <        checkCompletedWithWrappedCFException(g);
1597 >    public void testApplyToEither_normalCompletion() {
1598 >        for (ExecutionMode m : ExecutionMode.values())
1599 >        for (boolean createIncomplete : new boolean[] { true, false })
1600 >        for (boolean fFirst : new boolean[] { true, false })
1601 >        for (Integer v1 : new Integer[] { 1, null })
1602 >        for (Integer v2 : new Integer[] { 2, null })
1603 >    {
1604 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1605 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
1606 >        final IncFunction r = new IncFunction();
1607 >
1608 >        if (!createIncomplete)
1609 >            if (fFirst) f.complete(v1); else g.complete(v2);
1610 >        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
1611 >        if (createIncomplete) {
1612 >            checkIncomplete(h);
1613 >            assertEquals(0, r.invocationCount);
1614 >            if (fFirst) f.complete(v1); else g.complete(v2);
1615 >        }
1616 >        checkCompletedNormally(h, inc(fFirst ? v1 : v2));
1617 >        if (!fFirst) f.complete(v1); else g.complete(v2);
1618  
1619 <        r = new IncAction();
1620 <        f = new CompletableFuture<Integer>();
1621 <        f2 = new CompletableFuture<Integer>();
1622 <        f2.completeExceptionally(new CFException());
1623 <        g = f.acceptEither(f2, r);
1624 <        checkCompletedWithWrappedCFException(g);
1625 <    }
1619 >        checkCompletedNormally(f, v1);
1620 >        checkCompletedNormally(g, v2);
1621 >        checkCompletedNormally(h, inc(fFirst ? v1 : v2));
1622 >    }}
1623 >
1624 >    public void testApplyToEither_normalCompletionBothAvailable() {
1625 >        for (ExecutionMode m : ExecutionMode.values())
1626 >        for (boolean fFirst : new boolean[] { true, false })
1627 >        for (Integer v1 : new Integer[] { 1, null })
1628 >        for (Integer v2 : new Integer[] { 2, null })
1629 >    {
1630 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1631 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
1632 >        final IncFunction r = new IncFunction();
1633 >
1634 >        if (fFirst) {
1635 >            f.complete(v1);
1636 >            g.complete(v2);
1637 >        } else {
1638 >            g.complete(v2);
1639 >            f.complete(v1);
1640 >        }
1641  
1642 <    /**
944 <     * acceptEither result completes exceptionally if action does
945 <     */
946 <    public void testAcceptEither3() {
947 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
948 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
949 <        FailingConsumer r = new FailingConsumer();
950 <        CompletableFuture<Void> g = f.acceptEither(f2, r);
951 <        f2.complete(two);
952 <        checkCompletedWithWrappedCFException(g);
953 <    }
1642 >        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
1643  
1644 <    /**
1645 <     * acceptEither result completes exceptionally if either source cancelled
957 <     */
958 <    public void testAcceptEither4() {
959 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
960 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
961 <        IncAction r = new IncAction();
962 <        CompletableFuture<Void> g = f.acceptEither(f2, r);
963 <        assertTrue(f.cancel(true));
964 <        checkCompletedWithWrappedCancellationException(g);
965 <        f = new CompletableFuture<Integer>();
966 <        f2 = new CompletableFuture<Integer>();
967 <        assertTrue(f2.cancel(true));
968 <        checkCompletedWithWrappedCancellationException(g);
969 <    }
1644 >        checkCompletedNormally(f, v1);
1645 >        checkCompletedNormally(g, v2);
1646  
1647 +        // unspecified behavior
1648 +        assertTrue(Objects.equals(h.join(), inc(v1)) ||
1649 +                   Objects.equals(h.join(), inc(v2)));
1650 +        assertEquals(1, r.invocationCount);
1651 +    }}
1652  
1653      /**
1654 <     * runAfterEither result completes normally after normal completion
974 <     * of either source
975 <     */
976 <    public void testRunAfterEither() {
977 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
978 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
979 <        Noop r = new Noop();
980 <        CompletableFuture<Void> g = f.runAfterEither(f2, r);
981 <        f.complete(one);
982 <        checkCompletedNormally(g, null);
983 <        f2.complete(one);
984 <        checkCompletedNormally(g, null);
985 <        assertTrue(r.ran);
986 <
987 <        r = new Noop();
988 <        f = new CompletableFuture<Integer>();
989 <        f.complete(one);
990 <        f2 = new CompletableFuture<Integer>();
991 <        g = f.runAfterEither(f2, r);
992 <        checkCompletedNormally(g, null);
993 <        assertTrue(r.ran);
994 <    }
995 <
996 <    /**
997 <     * runAfterEither result completes exceptionally after exceptional
1654 >     * applyToEither result completes exceptionally after exceptional
1655       * completion of either source
1656       */
1657 <    public void testRunAfterEither2() {
1658 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1659 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1660 <        Noop r = new Noop();
1661 <        CompletableFuture<Void> g = f.runAfterEither(f2, r);
1662 <        f.completeExceptionally(new CFException());
1663 <        f2.complete(one);
1664 <        checkCompletedWithWrappedCFException(g);
1665 <
1666 <        r = new Noop();
1667 <        f = new CompletableFuture<Integer>();
1668 <        f2 = new CompletableFuture<Integer>();
1669 <        f2.completeExceptionally(new CFException());
1670 <        g = f.runAfterEither(f2, r);
1671 <        checkCompletedWithWrappedCFException(g);
1672 <    }
1673 <
1674 <    /**
1018 <     * runAfterEither result completes exceptionally if action does
1019 <     */
1020 <    public void testRunAfterEither3() {
1021 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1022 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1023 <        FailingNoop r = new FailingNoop();
1024 <        CompletableFuture<Void> g = f.runAfterEither(f2, r);
1025 <        f2.complete(two);
1026 <        checkCompletedWithWrappedCFException(g);
1027 <    }
1028 <
1029 <    /**
1030 <     * runAfterEither result completes exceptionally if either source cancelled
1031 <     */
1032 <    public void testRunAfterEither4() {
1033 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1034 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1035 <        Noop r = new Noop();
1036 <        CompletableFuture<Void> g = f.runAfterEither(f2, r);
1037 <        assertTrue(f.cancel(true));
1038 <        checkCompletedWithWrappedCancellationException(g);
1039 <        f = new CompletableFuture<Integer>();
1040 <        f2 = new CompletableFuture<Integer>();
1041 <        assertTrue(f2.cancel(true));
1042 <        checkCompletedWithWrappedCancellationException(g);
1043 <    }
1044 <
1045 <    /**
1046 <     * thenCompose result completes normally after normal completion of source
1047 <     */
1048 <    public void testThenCompose() {
1049 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1050 <        CompletableFutureInc r = new CompletableFutureInc();
1051 <        CompletableFuture<Integer> g = f.thenCompose(r);
1052 <        f.complete(one);
1053 <        checkCompletedNormally(g, two);
1054 <    }
1055 <
1056 <    /**
1057 <     * thenCompose result completes exceptionally after exceptional
1058 <     * completion of source
1059 <     */
1060 <    public void testThenCompose2() {
1061 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1062 <        CompletableFutureInc r = new CompletableFutureInc();
1063 <        CompletableFuture<Integer> g = f.thenCompose(r);
1064 <        f.completeExceptionally(new CFException());
1065 <        checkCompletedWithWrappedCFException(g);
1066 <    }
1067 <
1068 <    /**
1069 <     * thenCompose result completes exceptionally if action does
1070 <     */
1071 <    public void testThenCompose3() {
1072 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1073 <        FailingCompletableFutureFunction r = new FailingCompletableFutureFunction();
1074 <        CompletableFuture<Integer> g = f.thenCompose(r);
1075 <        f.complete(one);
1076 <        checkCompletedWithWrappedCFException(g);
1077 <    }
1078 <
1079 <    /**
1080 <     * thenCompose result completes exceptionally if source cancelled
1081 <     */
1082 <    public void testThenCompose4() {
1083 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1084 <        CompletableFutureInc r = new CompletableFutureInc();
1085 <        CompletableFuture<Integer> g = f.thenCompose(r);
1086 <        assertTrue(f.cancel(true));
1087 <        checkCompletedWithWrappedCancellationException(g);
1088 <    }
1089 <
1090 <
1091 <    // asyncs
1657 >    public void testApplyToEither_exceptionalCompletion1() {
1658 >        for (ExecutionMode m : ExecutionMode.values())
1659 >        for (boolean createIncomplete : new boolean[] { true, false })
1660 >        for (boolean fFirst : new boolean[] { true, false })
1661 >        for (Integer v1 : new Integer[] { 1, null })
1662 >    {
1663 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1664 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
1665 >        final CFException ex = new CFException();
1666 >        final IncFunction r = new IncFunction();
1667 >
1668 >        if (!createIncomplete) (fFirst ? f : g).completeExceptionally(ex);
1669 >        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
1670 >        if (createIncomplete) {
1671 >            checkIncomplete(h);
1672 >            assertEquals(0, r.invocationCount);
1673 >            (fFirst ? f : g).completeExceptionally(ex);
1674 >        }
1675  
1676 <    /**
1677 <     * thenRunAsync result completes normally after normal completion of source
1095 <     */
1096 <    public void testThenRunAsync() {
1097 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1098 <        Noop r = new Noop();
1099 <        CompletableFuture<Void> g = f.thenRunAsync(r);
1100 <        f.complete(null);
1101 <        checkCompletedNormally(g, null);
1676 >        checkCompletedWithWrappedCFException(h, ex);
1677 >        (!fFirst ? f : g).complete(v1);
1678  
1679 <        // reordered version
1680 <        f = new CompletableFuture<Integer>();
1681 <        f.complete(null);
1682 <        r = new Noop();
1683 <        g = f.thenRunAsync(r);
1684 <        checkCompletedNormally(g, null);
1685 <    }
1679 >        assertEquals(0, r.invocationCount);
1680 >        checkCompletedNormally(!fFirst ? f : g, v1);
1681 >        checkCompletedWithWrappedCFException(fFirst ? f : g, ex);
1682 >        checkCompletedWithWrappedCFException(h, ex);
1683 >    }}
1684 >
1685 >    public void testApplyToEither_exceptionalCompletion2() {
1686 >        for (ExecutionMode m : ExecutionMode.values())
1687 >        for (boolean reverseArgs : new boolean[] { true, false })
1688 >        for (boolean fFirst : new boolean[] { true, false })
1689 >        for (Integer v1 : new Integer[] { 1, null })
1690 >    {
1691 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1692 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
1693 >        final IncFunction r1 = new IncFunction();
1694 >        final IncFunction r2 = new IncFunction();
1695 >        final CFException ex = new CFException();
1696 >        final CompletableFuture<Integer> j = (reverseArgs ? g : f);
1697 >        final CompletableFuture<Integer> k = (reverseArgs ? f : g);
1698 >        final CompletableFuture<Integer> h1 = m.applyToEither(j, k, r1);
1699 >        if (fFirst) {
1700 >            f.complete(v1);
1701 >            g.completeExceptionally(ex);
1702 >        } else {
1703 >            g.completeExceptionally(ex);
1704 >            f.complete(v1);
1705 >        }
1706 >        final CompletableFuture<Integer> h2 = m.applyToEither(j, k, r2);
1707  
1708 <    /**
1112 <     * thenRunAsync result completes exceptionally after exceptional
1113 <     * completion of source
1114 <     */
1115 <    public void testThenRunAsync2() {
1116 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1117 <        Noop r = new Noop();
1118 <        CompletableFuture<Void> g = f.thenRunAsync(r);
1119 <        f.completeExceptionally(new CFException());
1708 >        // unspecified behavior
1709          try {
1710 <            g.join();
1711 <            shouldThrow();
1712 <        } catch (Exception ok) {
1710 >            assertEquals(inc(v1), h1.join());
1711 >            assertEquals(1, r1.invocationCount);
1712 >        } catch (CompletionException ok) {
1713 >            checkCompletedWithWrappedCFException(h1, ex);
1714 >            assertEquals(0, r1.invocationCount);
1715          }
1125        checkCompletedWithWrappedCFException(g);
1126    }
1127
1128    /**
1129     * thenRunAsync result completes exceptionally if action does
1130     */
1131    public void testThenRunAsync3() {
1132        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1133        FailingNoop r = new FailingNoop();
1134        CompletableFuture<Void> g = f.thenRunAsync(r);
1135        f.complete(null);
1136        checkCompletedWithWrappedCFException(g);
1137    }
1138
1139    /**
1140     * thenRunAsync result completes exceptionally if source cancelled
1141     */
1142    public void testThenRunAsync4() {
1143        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1144        Noop r = new Noop();
1145        CompletableFuture<Void> g = f.thenRunAsync(r);
1146        assertTrue(f.cancel(true));
1147        checkCompletedWithWrappedCancellationException(g);
1148    }
1149
1150    /**
1151     * thenApplyAsync result completes normally after normal completion of source
1152     */
1153    public void testThenApplyAsync() {
1154        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1155        CompletableFuture<Integer> g = f.thenApplyAsync(inc);
1156        f.complete(one);
1157        checkCompletedNormally(g, two);
1158    }
1159
1160    /**
1161     * thenApplyAsync result completes exceptionally after exceptional
1162     * completion of source
1163     */
1164    public void testThenApplyAsync2() {
1165        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1166        CompletableFuture<Integer> g = f.thenApplyAsync(inc);
1167        f.completeExceptionally(new CFException());
1168        checkCompletedWithWrappedCFException(g);
1169    }
1170
1171    /**
1172     * thenApplyAsync result completes exceptionally if action does
1173     */
1174    public void testThenApplyAsync3() {
1175        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1176        FailingFunction r = new FailingFunction();
1177        CompletableFuture<Integer> g = f.thenApplyAsync(r);
1178        f.complete(null);
1179        checkCompletedWithWrappedCFException(g);
1180    }
1181
1182    /**
1183     * thenApplyAsync result completes exceptionally if source cancelled
1184     */
1185    public void testThenApplyAsync4() {
1186        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1187        CompletableFuture<Integer> g = f.thenApplyAsync(inc);
1188        assertTrue(f.cancel(true));
1189        checkCompletedWithWrappedCancellationException(g);
1190    }
1191
1192    /**
1193     * thenAcceptAsync result completes normally after normal
1194     * completion of source
1195     */
1196    public void testThenAcceptAsync() {
1197        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1198        IncAction r = new IncAction();
1199        CompletableFuture<Void> g = f.thenAcceptAsync(r);
1200        f.complete(one);
1201        checkCompletedNormally(g, null);
1202        assertEquals(r.value, 2);
1203    }
1716  
1205    /**
1206     * thenAcceptAsync result completes exceptionally after exceptional
1207     * completion of source
1208     */
1209    public void testThenAcceptAsync2() {
1210        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1211        IncAction r = new IncAction();
1212        CompletableFuture<Void> g = f.thenAcceptAsync(r);
1213        f.completeExceptionally(new CFException());
1214        checkCompletedWithWrappedCFException(g);
1215    }
1216
1217    /**
1218     * thenAcceptAsync result completes exceptionally if action does
1219     */
1220    public void testThenAcceptAsync3() {
1221        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1222        FailingConsumer r = new FailingConsumer();
1223        CompletableFuture<Void> g = f.thenAcceptAsync(r);
1224        f.complete(null);
1225        checkCompletedWithWrappedCFException(g);
1226    }
1227
1228    /**
1229     * thenAcceptAsync result completes exceptionally if source cancelled
1230     */
1231    public void testThenAcceptAsync4() {
1232        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1233        IncAction r = new IncAction();
1234        CompletableFuture<Void> g = f.thenAcceptAsync(r);
1235        assertTrue(f.cancel(true));
1236        checkCompletedWithWrappedCancellationException(g);
1237    }
1238    /**
1239     * thenCombineAsync result completes normally after normal
1240     * completion of sources
1241     */
1242    public void testThenCombineAsync() {
1243        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1244        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1245        CompletableFuture<Integer> g = f.thenCombineAsync(f2, add);
1246        f.complete(one);
1247        checkIncomplete(g);
1248        f2.complete(two);
1249        checkCompletedNormally(g, three);
1250    }
1251
1252    /**
1253     * thenCombineAsync result completes exceptionally after exceptional
1254     * completion of source
1255     */
1256    public void testThenCombineAsync2() {
1257        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1258        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1259        CompletableFuture<Integer> g = f.thenCombineAsync(f2, add);
1260        f.completeExceptionally(new CFException());
1261        f2.complete(two);
1262        checkCompletedWithWrappedCFException(g);
1263
1264        f = new CompletableFuture<Integer>();
1265        f2 = new CompletableFuture<Integer>();
1266        g = f.thenCombineAsync(f2, add);
1267        f.complete(one);
1268        f2.completeExceptionally(new CFException());
1269        checkCompletedWithWrappedCFException(g);
1270    }
1271
1272    /**
1273     * thenCombineAsync result completes exceptionally if action does
1274     */
1275    public void testThenCombineAsync3() {
1276        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1277        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1278        FailingBiFunction r = new FailingBiFunction();
1279        CompletableFuture<Integer> g = f.thenCombineAsync(f2, r);
1280        f.complete(one);
1281        checkIncomplete(g);
1282        f2.complete(two);
1283        checkCompletedWithWrappedCFException(g);
1284    }
1285
1286    /**
1287     * thenCombineAsync result completes exceptionally if either source cancelled
1288     */
1289    public void testThenCombineAsync4() {
1290        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1291        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1292        CompletableFuture<Integer> g = f.thenCombineAsync(f2, add);
1293        assertTrue(f.cancel(true));
1294        f2.complete(two);
1295        checkCompletedWithWrappedCancellationException(g);
1296
1297        f = new CompletableFuture<Integer>();
1298        f2 = new CompletableFuture<Integer>();
1299        g = f.thenCombineAsync(f2, add);
1300        f.complete(one);
1301        assertTrue(f2.cancel(true));
1302        checkCompletedWithWrappedCancellationException(g);
1303    }
1304
1305    /**
1306     * thenAcceptBothAsync result completes normally after normal
1307     * completion of sources
1308     */
1309    public void testThenAcceptBothAsync() {
1310        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1311        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1312        AddAction r = new AddAction();
1313        CompletableFuture<Void> g = f.thenAcceptBothAsync(f2, r);
1314        f.complete(one);
1315        checkIncomplete(g);
1316        f2.complete(two);
1317        checkCompletedNormally(g, null);
1318        assertEquals(r.value, 3);
1319    }
1320
1321    /**
1322     * thenAcceptBothAsync result completes exceptionally after exceptional
1323     * completion of source
1324     */
1325    public void testThenAcceptBothAsync2() {
1326        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1327        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1328        AddAction r = new AddAction();
1329        CompletableFuture<Void> g = f.thenAcceptBothAsync(f2, r);
1330        f.completeExceptionally(new CFException());
1331        f2.complete(two);
1332        checkCompletedWithWrappedCFException(g);
1333
1334        r = new AddAction();
1335        f = new CompletableFuture<Integer>();
1336        f2 = new CompletableFuture<Integer>();
1337        g = f.thenAcceptBothAsync(f2, r);
1338        f.complete(one);
1339        f2.completeExceptionally(new CFException());
1340        checkCompletedWithWrappedCFException(g);
1341    }
1342
1343    /**
1344     * thenAcceptBothAsync result completes exceptionally if action does
1345     */
1346    public void testThenAcceptBothAsync3() {
1347        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1348        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1349        FailingBiConsumer r = new FailingBiConsumer();
1350        CompletableFuture<Void> g = f.thenAcceptBothAsync(f2, r);
1351        f.complete(one);
1352        checkIncomplete(g);
1353        f2.complete(two);
1354        checkCompletedWithWrappedCFException(g);
1355    }
1356
1357    /**
1358     * thenAcceptBothAsync result completes exceptionally if either source cancelled
1359     */
1360    public void testThenAcceptBothAsync4() {
1361        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1362        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1363        AddAction r = new AddAction();
1364        CompletableFuture<Void> g = f.thenAcceptBothAsync(f2, r);
1365        assertTrue(f.cancel(true));
1366        f2.complete(two);
1367        checkCompletedWithWrappedCancellationException(g);
1368
1369        r = new AddAction();
1370        f = new CompletableFuture<Integer>();
1371        f2 = new CompletableFuture<Integer>();
1372        g = f.thenAcceptBothAsync(f2, r);
1373        f.complete(one);
1374        assertTrue(f2.cancel(true));
1375        checkCompletedWithWrappedCancellationException(g);
1376    }
1377
1378    /**
1379     * runAfterBothAsync result completes normally after normal
1380     * completion of sources
1381     */
1382    public void testRunAfterBothAsync() {
1383        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1384        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1385        Noop r = new Noop();
1386        CompletableFuture<Void> g = f.runAfterBothAsync(f2, r);
1387        f.complete(one);
1388        checkIncomplete(g);
1389        f2.complete(two);
1390        checkCompletedNormally(g, null);
1391        assertTrue(r.ran);
1392    }
1393
1394    /**
1395     * runAfterBothAsync result completes exceptionally after exceptional
1396     * completion of source
1397     */
1398    public void testRunAfterBothAsync2() {
1399        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1400        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1401        Noop r = new Noop();
1402        CompletableFuture<Void> g = f.runAfterBothAsync(f2, r);
1403        f.completeExceptionally(new CFException());
1404        f2.complete(two);
1405        checkCompletedWithWrappedCFException(g);
1406
1407        r = new Noop();
1408        f = new CompletableFuture<Integer>();
1409        f2 = new CompletableFuture<Integer>();
1410        g = f.runAfterBothAsync(f2, r);
1411        f.complete(one);
1412        f2.completeExceptionally(new CFException());
1413        checkCompletedWithWrappedCFException(g);
1414    }
1415
1416    /**
1417     * runAfterBothAsync result completes exceptionally if action does
1418     */
1419    public void testRunAfterBothAsync3() {
1420        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1421        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1422        FailingNoop r = new FailingNoop();
1423        CompletableFuture<Void> g = f.runAfterBothAsync(f2, r);
1424        f.complete(one);
1425        checkIncomplete(g);
1426        f2.complete(two);
1427        checkCompletedWithWrappedCFException(g);
1428    }
1429
1430    /**
1431     * runAfterBothAsync result completes exceptionally if either source cancelled
1432     */
1433    public void testRunAfterBothAsync4() {
1434        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1435        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1436        Noop r = new Noop();
1437        CompletableFuture<Void> g = f.runAfterBothAsync(f2, r);
1438        assertTrue(f.cancel(true));
1439        f2.complete(two);
1440        checkCompletedWithWrappedCancellationException(g);
1441
1442        r = new Noop();
1443        f = new CompletableFuture<Integer>();
1444        f2 = new CompletableFuture<Integer>();
1445        g = f.runAfterBothAsync(f2, r);
1446        f.complete(one);
1447        assertTrue(f2.cancel(true));
1448        checkCompletedWithWrappedCancellationException(g);
1449    }
1450
1451    /**
1452     * applyToEitherAsync result completes normally after normal
1453     * completion of sources
1454     */
1455    public void testApplyToEitherAsync() {
1456        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1457        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1458        CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc);
1459        f.complete(one);
1460        checkCompletedNormally(g, two);
1461
1462        f = new CompletableFuture<Integer>();
1463        f.complete(one);
1464        f2 = new CompletableFuture<Integer>();
1465        g = f.applyToEitherAsync(f2, inc);
1466        checkCompletedNormally(g, two);
1467    }
1468
1469    /**
1470     * applyToEitherAsync result completes exceptionally after exceptional
1471     * completion of source
1472     */
1473    public void testApplyToEitherAsync2() {
1474        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1475        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1476        CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc);
1477        f.completeExceptionally(new CFException());
1478        checkCompletedWithWrappedCFException(g);
1479
1480        f = new CompletableFuture<Integer>();
1481        f2 = new CompletableFuture<Integer>();
1482        f2.completeExceptionally(new CFException());
1483        g = f.applyToEitherAsync(f2, inc);
1484        f.complete(one);
1485        checkCompletedWithWrappedCFException(g);
1486    }
1487
1488    /**
1489     * applyToEitherAsync result completes exceptionally if action does
1490     */
1491    public void testApplyToEitherAsync3() {
1492        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1493        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1494        FailingFunction r = new FailingFunction();
1495        CompletableFuture<Integer> g = f.applyToEitherAsync(f2, r);
1496        f.complete(one);
1497        checkCompletedWithWrappedCFException(g);
1498    }
1499
1500    /**
1501     * applyToEitherAsync result completes exceptionally if either source cancelled
1502     */
1503    public void testApplyToEitherAsync4() {
1504        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1505        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1506        CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc);
1507        assertTrue(f.cancel(true));
1508        checkCompletedWithWrappedCancellationException(g);
1509
1510        f = new CompletableFuture<Integer>();
1511        f2 = new CompletableFuture<Integer>();
1512        assertTrue(f2.cancel(true));
1513        g = f.applyToEitherAsync(f2, inc);
1514        checkCompletedWithWrappedCancellationException(g);
1515    }
1516
1517    /**
1518     * acceptEitherAsync result completes normally after normal
1519     * completion of sources
1520     */
1521    public void testAcceptEitherAsync() {
1522        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1523        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1524        IncAction r = new IncAction();
1525        CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
1526        f.complete(one);
1527        checkCompletedNormally(g, null);
1528        assertEquals(r.value, 2);
1529
1530        r = new IncAction();
1531        f = new CompletableFuture<Integer>();
1532        f.complete(one);
1533        f2 = new CompletableFuture<Integer>();
1534        g = f.acceptEitherAsync(f2, r);
1535        checkCompletedNormally(g, null);
1536        assertEquals(r.value, 2);
1537    }
1538
1539    /**
1540     * acceptEitherAsync result completes exceptionally after exceptional
1541     * completion of source
1542     */
1543    public void testAcceptEitherAsync2() {
1544        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1545        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1546        IncAction r = new IncAction();
1547        CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
1548        f.completeExceptionally(new CFException());
1549        checkCompletedWithWrappedCFException(g);
1550
1551        r = new IncAction();
1552        f = new CompletableFuture<Integer>();
1553        f2 = new CompletableFuture<Integer>();
1554        f2.completeExceptionally(new CFException());
1555        g = f.acceptEitherAsync(f2, r);
1556        f.complete(one);
1557        checkCompletedWithWrappedCFException(g);
1558    }
1559
1560    /**
1561     * acceptEitherAsync result completes exceptionally if action does
1562     */
1563    public void testAcceptEitherAsync3() {
1564        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1565        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1566        FailingConsumer r = new FailingConsumer();
1567        CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
1568        f.complete(one);
1569        checkCompletedWithWrappedCFException(g);
1570    }
1571
1572    /**
1573     * acceptEitherAsync result completes exceptionally if either
1574     * source cancelled
1575     */
1576    public void testAcceptEitherAsync4() {
1577        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1578        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1579        IncAction r = new IncAction();
1580        CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
1581        assertTrue(f.cancel(true));
1582        checkCompletedWithWrappedCancellationException(g);
1583
1584        r = new IncAction();
1585        f = new CompletableFuture<Integer>();
1586        f2 = new CompletableFuture<Integer>();
1587        assertTrue(f2.cancel(true));
1588        g = f.acceptEitherAsync(f2, r);
1589        checkCompletedWithWrappedCancellationException(g);
1590    }
1591
1592    /**
1593     * runAfterEitherAsync result completes normally after normal
1594     * completion of sources
1595     */
1596    public void testRunAfterEitherAsync() {
1597        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1598        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1599        Noop r = new Noop();
1600        CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
1601        f.complete(one);
1602        checkCompletedNormally(g, null);
1603        assertTrue(r.ran);
1604
1605        r = new Noop();
1606        f = new CompletableFuture<Integer>();
1607        f.complete(one);
1608        f2 = new CompletableFuture<Integer>();
1609        g = f.runAfterEitherAsync(f2, r);
1610        checkCompletedNormally(g, null);
1611        assertTrue(r.ran);
1612    }
1613
1614    /**
1615     * runAfterEitherAsync result completes exceptionally after exceptional
1616     * completion of source
1617     */
1618    public void testRunAfterEitherAsync2() {
1619        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1620        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1621        Noop r = new Noop();
1622        CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
1623        f.completeExceptionally(new CFException());
1624        checkCompletedWithWrappedCFException(g);
1625
1626        r = new Noop();
1627        f = new CompletableFuture<Integer>();
1628        f2 = new CompletableFuture<Integer>();
1629        f2.completeExceptionally(new CFException());
1630        g = f.runAfterEitherAsync(f2, r);
1631        f.complete(one);
1632        checkCompletedWithWrappedCFException(g);
1633    }
1634
1635    /**
1636     * runAfterEitherAsync result completes exceptionally if action does
1637     */
1638    public void testRunAfterEitherAsync3() {
1639        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1640        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1641        FailingNoop r = new FailingNoop();
1642        CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
1643        f.complete(one);
1644        checkCompletedWithWrappedCFException(g);
1645    }
1646
1647    /**
1648     * runAfterEitherAsync result completes exceptionally if either
1649     * source cancelled
1650     */
1651    public void testRunAfterEitherAsync4() {
1652        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1653        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1654        Noop r = new Noop();
1655        CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
1656        assertTrue(f.cancel(true));
1657        checkCompletedWithWrappedCancellationException(g);
1658
1659        r = new Noop();
1660        f = new CompletableFuture<Integer>();
1661        f2 = new CompletableFuture<Integer>();
1662        assertTrue(f2.cancel(true));
1663        g = f.runAfterEitherAsync(f2, r);
1664        checkCompletedWithWrappedCancellationException(g);
1665    }
1666
1667    /**
1668     * thenComposeAsync result completes normally after normal
1669     * completion of source
1670     */
1671    public void testThenComposeAsync() {
1672        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1673        CompletableFutureInc r = new CompletableFutureInc();
1674        CompletableFuture<Integer> g = f.thenComposeAsync(r);
1675        f.complete(one);
1676        checkCompletedNormally(g, two);
1677    }
1678
1679    /**
1680     * thenComposeAsync result completes exceptionally after
1681     * exceptional completion of source
1682     */
1683    public void testThenComposeAsync2() {
1684        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1685        CompletableFutureInc r = new CompletableFutureInc();
1686        CompletableFuture<Integer> g = f.thenComposeAsync(r);
1687        f.completeExceptionally(new CFException());
1688        checkCompletedWithWrappedCFException(g);
1689    }
1690
1691    /**
1692     * thenComposeAsync result completes exceptionally if action does
1693     */
1694    public void testThenComposeAsync3() {
1695        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1696        FailingCompletableFutureFunction r = new FailingCompletableFutureFunction();
1697        CompletableFuture<Integer> g = f.thenComposeAsync(r);
1698        f.complete(one);
1699        checkCompletedWithWrappedCFException(g);
1700    }
1701
1702    /**
1703     * thenComposeAsync result completes exceptionally if source cancelled
1704     */
1705    public void testThenComposeAsync4() {
1706        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1707        CompletableFutureInc r = new CompletableFutureInc();
1708        CompletableFuture<Integer> g = f.thenComposeAsync(r);
1709        assertTrue(f.cancel(true));
1710        checkCompletedWithWrappedCancellationException(g);
1711    }
1712
1713
1714    // async with explicit executors
1715
1716    /**
1717     * thenRunAsync result completes normally after normal completion of source
1718     */
1719    public void testThenRunAsyncE() {
1720        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1721        Noop r = new Noop();
1722        CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
1723        f.complete(null);
1724        checkCompletedNormally(g, null);
1725
1726        // reordered version
1727        f = new CompletableFuture<Integer>();
1728        f.complete(null);
1729        r = new Noop();
1730        g = f.thenRunAsync(r, new ThreadExecutor());
1731        checkCompletedNormally(g, null);
1732    }
1733
1734    /**
1735     * thenRunAsync result completes exceptionally after exceptional
1736     * completion of source
1737     */
1738    public void testThenRunAsync2E() {
1739        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1740        Noop r = new Noop();
1741        CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
1742        f.completeExceptionally(new CFException());
1717          try {
1718 <            g.join();
1719 <            shouldThrow();
1720 <        } catch (Exception ok) {
1718 >            assertEquals(inc(v1), h2.join());
1719 >            assertEquals(1, r2.invocationCount);
1720 >        } catch (CompletionException ok) {
1721 >            checkCompletedWithWrappedCFException(h2, ex);
1722 >            assertEquals(0, r2.invocationCount);
1723          }
1748        checkCompletedWithWrappedCFException(g);
1749    }
1750
1751    /**
1752     * thenRunAsync result completes exceptionally if action does
1753     */
1754    public void testThenRunAsync3E() {
1755        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1756        FailingNoop r = new FailingNoop();
1757        CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
1758        f.complete(null);
1759        checkCompletedWithWrappedCFException(g);
1760    }
1724  
1725 <    /**
1726 <     * thenRunAsync result completes exceptionally if source cancelled
1727 <     */
1765 <    public void testThenRunAsync4E() {
1766 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1767 <        Noop r = new Noop();
1768 <        CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
1769 <        assertTrue(f.cancel(true));
1770 <        checkCompletedWithWrappedCancellationException(g);
1771 <    }
1772 <
1773 <    /**
1774 <     * thenApplyAsync result completes normally after normal completion of source
1775 <     */
1776 <    public void testThenApplyAsyncE() {
1777 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1778 <        CompletableFuture<Integer> g = f.thenApplyAsync(inc, new ThreadExecutor());
1779 <        f.complete(one);
1780 <        checkCompletedNormally(g, two);
1781 <    }
1782 <
1783 <    /**
1784 <     * thenApplyAsync result completes exceptionally after exceptional
1785 <     * completion of source
1786 <     */
1787 <    public void testThenApplyAsync2E() {
1788 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1789 <        CompletableFuture<Integer> g = f.thenApplyAsync(inc, new ThreadExecutor());
1790 <        f.completeExceptionally(new CFException());
1791 <        checkCompletedWithWrappedCFException(g);
1792 <    }
1793 <
1794 <    /**
1795 <     * thenApplyAsync result completes exceptionally if action does
1796 <     */
1797 <    public void testThenApplyAsync3E() {
1798 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1799 <        FailingFunction r = new FailingFunction();
1800 <        CompletableFuture<Integer> g = f.thenApplyAsync(r, new ThreadExecutor());
1801 <        f.complete(null);
1802 <        checkCompletedWithWrappedCFException(g);
1803 <    }
1725 >        checkCompletedWithWrappedCFException(g, ex);
1726 >        checkCompletedNormally(f, v1);
1727 >    }}
1728  
1729      /**
1730 <     * thenApplyAsync result completes exceptionally if source cancelled
1730 >     * applyToEither result completes exceptionally if action does
1731       */
1732 <    public void testThenApplyAsync4E() {
1733 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1734 <        CompletableFuture<Integer> g = f.thenApplyAsync(inc, new ThreadExecutor());
1735 <        assertTrue(f.cancel(true));
1736 <        checkCompletedWithWrappedCancellationException(g);
1737 <    }
1732 >    public void testApplyToEither_actionFailed1() {
1733 >        for (ExecutionMode m : ExecutionMode.values())
1734 >        for (Integer v1 : new Integer[] { 1, null })
1735 >        for (Integer v2 : new Integer[] { 2, null })
1736 >    {
1737 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1738 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
1739 >        final FailingFunction r = new FailingFunction();
1740 >        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
1741 >
1742 >        f.complete(v1);
1743 >        checkCompletedWithWrappedCFException(h);
1744 >        g.complete(v2);
1745 >        checkCompletedNormally(f, v1);
1746 >        checkCompletedNormally(g, v2);
1747 >    }}
1748 >
1749 >    public void testApplyToEither_actionFailed2() {
1750 >        for (ExecutionMode m : ExecutionMode.values())
1751 >        for (Integer v1 : new Integer[] { 1, null })
1752 >        for (Integer v2 : new Integer[] { 2, null })
1753 >    {
1754 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1755 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
1756 >        final FailingFunction r = new FailingFunction();
1757 >        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
1758 >
1759 >        g.complete(v2);
1760 >        checkCompletedWithWrappedCFException(h);
1761 >        f.complete(v1);
1762 >        checkCompletedNormally(f, v1);
1763 >        checkCompletedNormally(g, v2);
1764 >    }}
1765  
1766      /**
1767 <     * thenAcceptAsync result completes normally after normal
1817 <     * completion of source
1767 >     * applyToEither result completes exceptionally if either source cancelled
1768       */
1769 <    public void testThenAcceptAsyncE() {
1770 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1771 <        IncAction r = new IncAction();
1772 <        CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
1773 <        f.complete(one);
1774 <        checkCompletedNormally(g, null);
1775 <        assertEquals(r.value, 2);
1776 <    }
1769 >    public void testApplyToEither_sourceCancelled1() {
1770 >        for (ExecutionMode m : ExecutionMode.values())
1771 >        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1772 >        for (boolean createIncomplete : new boolean[] { true, false })
1773 >        for (boolean fFirst : new boolean[] { true, false })
1774 >        for (Integer v1 : new Integer[] { 1, null })
1775 >    {
1776 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1777 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
1778 >        final IncFunction r = new IncFunction();
1779 >
1780 >        if (!createIncomplete) assertTrue((fFirst ? f : g).cancel(mayInterruptIfRunning));
1781 >        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
1782 >        if (createIncomplete) {
1783 >            checkIncomplete(h);
1784 >            assertEquals(0, r.invocationCount);
1785 >            assertTrue((fFirst ? f : g).cancel(mayInterruptIfRunning));
1786 >        }
1787  
1788 <    /**
1789 <     * thenAcceptAsync result completes exceptionally after exceptional
1830 <     * completion of source
1831 <     */
1832 <    public void testThenAcceptAsync2E() {
1833 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1834 <        IncAction r = new IncAction();
1835 <        CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
1836 <        f.completeExceptionally(new CFException());
1837 <        checkCompletedWithWrappedCFException(g);
1838 <    }
1788 >        checkCompletedWithWrappedCancellationException(h);
1789 >        (!fFirst ? f : g).complete(v1);
1790  
1791 <    /**
1792 <     * thenAcceptAsync result completes exceptionally if action does
1793 <     */
1794 <    public void testThenAcceptAsync3E() {
1795 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1796 <        FailingConsumer r = new FailingConsumer();
1797 <        CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
1798 <        f.complete(null);
1799 <        checkCompletedWithWrappedCFException(g);
1800 <    }
1791 >        assertEquals(0, r.invocationCount);
1792 >        checkCompletedNormally(!fFirst ? f : g, v1);
1793 >        checkCancelled(fFirst ? f : g);
1794 >        checkCompletedWithWrappedCancellationException(h);
1795 >    }}
1796 >
1797 >    public void testApplyToEither_sourceCancelled2() {
1798 >        for (ExecutionMode m : ExecutionMode.values())
1799 >        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1800 >        for (boolean reverseArgs : new boolean[] { true, false })
1801 >        for (boolean fFirst : new boolean[] { true, false })
1802 >        for (Integer v1 : new Integer[] { 1, null })
1803 >    {
1804 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1805 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
1806 >        final IncFunction r1 = new IncFunction();
1807 >        final IncFunction r2 = new IncFunction();
1808 >        final CFException ex = new CFException();
1809 >        final CompletableFuture<Integer> j = (reverseArgs ? g : f);
1810 >        final CompletableFuture<Integer> k = (reverseArgs ? f : g);
1811 >
1812 >        final CompletableFuture<Integer> h1 = m.applyToEither(j, k, r1);
1813 >        if (fFirst) {
1814 >            f.complete(v1);
1815 >            assertTrue(g.cancel(mayInterruptIfRunning));
1816 >        } else {
1817 >            assertTrue(g.cancel(mayInterruptIfRunning));
1818 >            f.complete(v1);
1819 >        }
1820 >        final CompletableFuture<Integer> h2 = m.applyToEither(j, k, r2);
1821  
1822 <    /**
1823 <     * thenAcceptAsync result completes exceptionally if source cancelled
1824 <     */
1825 <    public void testThenAcceptAsync4E() {
1826 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1827 <        IncAction r = new IncAction();
1828 <        CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
1829 <        assertTrue(f.cancel(true));
1859 <        checkCompletedWithWrappedCancellationException(g);
1860 <    }
1861 <    /**
1862 <     * thenCombineAsync result completes normally after normal
1863 <     * completion of sources
1864 <     */
1865 <    public void testThenCombineAsyncE() {
1866 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1867 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1868 <        CompletableFuture<Integer> g = f.thenCombineAsync(f2, add, new ThreadExecutor());
1869 <        f.complete(one);
1870 <        checkIncomplete(g);
1871 <        f2.complete(two);
1872 <        checkCompletedNormally(g, three);
1873 <    }
1822 >        // unspecified behavior
1823 >        try {
1824 >            assertEquals(inc(v1), h1.join());
1825 >            assertEquals(1, r1.invocationCount);
1826 >        } catch (CompletionException ok) {
1827 >            checkCompletedWithWrappedCancellationException(h1);
1828 >            assertEquals(0, r1.invocationCount);
1829 >        }
1830  
1831 <    /**
1832 <     * thenCombineAsync result completes exceptionally after exceptional
1833 <     * completion of source
1834 <     */
1835 <    public void testThenCombineAsync2E() {
1836 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1837 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1882 <        CompletableFuture<Integer> g = f.thenCombineAsync(f2, add, new ThreadExecutor());
1883 <        f.completeExceptionally(new CFException());
1884 <        f2.complete(two);
1885 <        checkCompletedWithWrappedCFException(g);
1831 >        try {
1832 >            assertEquals(inc(v1), h2.join());
1833 >            assertEquals(1, r2.invocationCount);
1834 >        } catch (CompletionException ok) {
1835 >            checkCompletedWithWrappedCancellationException(h2);
1836 >            assertEquals(0, r2.invocationCount);
1837 >        }
1838  
1839 <        f = new CompletableFuture<Integer>();
1840 <        f2 = new CompletableFuture<Integer>();
1841 <        g = f.thenCombineAsync(f2, add, new ThreadExecutor());
1890 <        f.complete(one);
1891 <        f2.completeExceptionally(new CFException());
1892 <        checkCompletedWithWrappedCFException(g);
1893 <    }
1839 >        checkCancelled(g);
1840 >        checkCompletedNormally(f, v1);
1841 >    }}
1842  
1843      /**
1844 <     * thenCombineAsync result completes exceptionally if action does
1844 >     * acceptEither result completes normally after normal completion
1845 >     * of either source
1846       */
1847 <    public void testThenCombineAsync3E() {
1848 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1849 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1850 <        FailingBiFunction r = new FailingBiFunction();
1851 <        CompletableFuture<Integer> g = f.thenCombineAsync(f2, r, new ThreadExecutor());
1852 <        f.complete(one);
1853 <        checkIncomplete(g);
1854 <        f2.complete(two);
1855 <        checkCompletedWithWrappedCFException(g);
1856 <    }
1847 >    public void testAcceptEither_normalCompletion1() {
1848 >        for (ExecutionMode m : ExecutionMode.values())
1849 >        for (Integer v1 : new Integer[] { 1, null })
1850 >        for (Integer v2 : new Integer[] { 2, null })
1851 >    {
1852 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1853 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
1854 >        final IncAction r = new IncAction();
1855 >        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
1856 >
1857 >        f.complete(v1);
1858 >        checkCompletedNormally(h, null);
1859 >        assertEquals(inc(v1), r.value);
1860 >        g.complete(v2);
1861 >
1862 >        checkCompletedNormally(f, v1);
1863 >        checkCompletedNormally(g, v2);
1864 >        checkCompletedNormally(h, null);
1865 >    }}
1866 >
1867 >    public void testAcceptEither_normalCompletion2() {
1868 >        for (ExecutionMode m : ExecutionMode.values())
1869 >        for (Integer v1 : new Integer[] { 1, null })
1870 >        for (Integer v2 : new Integer[] { 2, null })
1871 >    {
1872 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1873 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
1874 >        final IncAction r = new IncAction();
1875 >        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
1876 >
1877 >        g.complete(v2);
1878 >        checkCompletedNormally(h, null);
1879 >        assertEquals(inc(v2), r.value);
1880 >        f.complete(v1);
1881 >
1882 >        checkCompletedNormally(f, v1);
1883 >        checkCompletedNormally(g, v2);
1884 >        checkCompletedNormally(h, null);
1885 >    }}
1886 >
1887 >    public void testAcceptEither_normalCompletion3() {
1888 >        for (ExecutionMode m : ExecutionMode.values())
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 IncAction r = new IncAction();
1895 >
1896 >        f.complete(v1);
1897 >        g.complete(v2);
1898 >        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
1899 >
1900 >        checkCompletedNormally(h, null);
1901 >        checkCompletedNormally(f, v1);
1902 >        checkCompletedNormally(g, v2);
1903 >
1904 >        // unspecified behavior
1905 >        assertTrue(Objects.equals(r.value, inc(v1)) ||
1906 >                   Objects.equals(r.value, inc(v2)));
1907 >    }}
1908  
1909      /**
1910 <     * thenCombineAsync result completes exceptionally if either source cancelled
1910 >     * acceptEither result completes exceptionally after exceptional
1911 >     * completion of either source
1912       */
1913 <    public void testThenCombineAsync4E() {
1914 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1915 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1916 <        CompletableFuture<Integer> g = f.thenCombineAsync(f2, add, new ThreadExecutor());
1917 <        assertTrue(f.cancel(true));
1918 <        f2.complete(two);
1919 <        checkCompletedWithWrappedCancellationException(g);
1913 >    public void testAcceptEither_exceptionalCompletion1() {
1914 >        for (ExecutionMode m : ExecutionMode.values())
1915 >        for (Integer v1 : new Integer[] { 1, null })
1916 >    {
1917 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1918 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
1919 >        final IncAction r = new IncAction();
1920 >        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
1921 >        final CFException ex = new CFException();
1922 >
1923 >        f.completeExceptionally(ex);
1924 >        checkCompletedWithWrappedCFException(h, ex);
1925 >        g.complete(v1);
1926 >
1927 >        assertEquals(0, r.invocationCount);
1928 >        checkCompletedNormally(g, v1);
1929 >        checkCompletedWithWrappedCFException(f, ex);
1930 >        checkCompletedWithWrappedCFException(h, ex);
1931 >    }}
1932 >
1933 >    public void testAcceptEither_exceptionalCompletion2() {
1934 >        for (ExecutionMode m : ExecutionMode.values())
1935 >        for (Integer v1 : new Integer[] { 1, null })
1936 >    {
1937 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1938 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
1939 >        final IncAction r = new IncAction();
1940 >        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
1941 >        final CFException ex = new CFException();
1942 >
1943 >        g.completeExceptionally(ex);
1944 >        checkCompletedWithWrappedCFException(h, ex);
1945 >        f.complete(v1);
1946 >
1947 >        assertEquals(0, r.invocationCount);
1948 >        checkCompletedNormally(f, v1);
1949 >        checkCompletedWithWrappedCFException(g, ex);
1950 >        checkCompletedWithWrappedCFException(h, ex);
1951 >    }}
1952 >
1953 >    public void testAcceptEither_exceptionalCompletion3() {
1954 >        for (ExecutionMode m : ExecutionMode.values())
1955 >        for (Integer v1 : new Integer[] { 1, null })
1956 >    {
1957 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1958 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
1959 >        final IncAction r = new IncAction();
1960 >        final CFException ex = new CFException();
1961 >
1962 >        g.completeExceptionally(ex);
1963 >        f.complete(v1);
1964 >        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
1965  
1966 <        f = new CompletableFuture<Integer>();
1967 <        f2 = new CompletableFuture<Integer>();
1968 <        g = f.thenCombineAsync(f2, add, new ThreadExecutor());
1969 <        f.complete(one);
1970 <        assertTrue(f2.cancel(true));
1971 <        checkCompletedWithWrappedCancellationException(g);
1972 <    }
1966 >        // unspecified behavior
1967 >        Integer v;
1968 >        try {
1969 >            assertNull(h.join());
1970 >            assertEquals(1, r.invocationCount);
1971 >            assertEquals(inc(v1), r.value);
1972 >        } catch (CompletionException ok) {
1973 >            checkCompletedWithWrappedCFException(h, ex);
1974 >            assertEquals(0, r.invocationCount);
1975 >        }
1976  
1977 <    /**
1978 <     * thenAcceptBothAsync result completes normally after normal
1979 <     * completion of sources
1980 <     */
1981 <    public void testThenAcceptBothAsyncE() {
1982 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1983 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1984 <        AddAction r = new AddAction();
1985 <        CompletableFuture<Void> g = f.thenAcceptBothAsync(f2, r, new ThreadExecutor());
1986 <        f.complete(one);
1987 <        checkIncomplete(g);
1988 <        f2.complete(two);
1989 <        checkCompletedNormally(g, null);
1990 <        assertEquals(r.value, 3);
1991 <    }
1977 >        checkCompletedWithWrappedCFException(g, ex);
1978 >        checkCompletedNormally(f, v1);
1979 >    }}
1980 >
1981 >    public void testAcceptEither_exceptionalCompletion4() {
1982 >        for (ExecutionMode m : ExecutionMode.values())
1983 >        for (Integer v1 : new Integer[] { 1, null })
1984 >    {
1985 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
1986 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
1987 >        final IncAction r = new IncAction();
1988 >        final CFException ex = new CFException();
1989 >
1990 >        f.completeExceptionally(ex);
1991 >        g.complete(v1);
1992 >        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
1993  
1994 <    /**
1995 <     * thenAcceptBothAsync result completes exceptionally after exceptional
1996 <     * completion of source
1997 <     */
1998 <    public void testThenAcceptBothAsync2E() {
1999 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2000 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2001 <        AddAction r = new AddAction();
2002 <        CompletableFuture<Void> g = f.thenAcceptBothAsync(f2, r, new ThreadExecutor());
2003 <        f.completeExceptionally(new CFException());
1954 <        f2.complete(two);
1955 <        checkCompletedWithWrappedCFException(g);
1994 >        // unspecified behavior
1995 >        Integer v;
1996 >        try {
1997 >            assertNull(h.join());
1998 >            assertEquals(1, r.invocationCount);
1999 >            assertEquals(inc(v1), r.value);
2000 >        } catch (CompletionException ok) {
2001 >            checkCompletedWithWrappedCFException(h, ex);
2002 >            assertEquals(0, r.invocationCount);
2003 >        }
2004  
2005 <        r = new AddAction();
2006 <        f = new CompletableFuture<Integer>();
2007 <        f2 = new CompletableFuture<Integer>();
1960 <        g = f.thenAcceptBothAsync(f2, r, new ThreadExecutor());
1961 <        f.complete(one);
1962 <        f2.completeExceptionally(new CFException());
1963 <        checkCompletedWithWrappedCFException(g);
1964 <    }
2005 >        checkCompletedWithWrappedCFException(f, ex);
2006 >        checkCompletedNormally(g, v1);
2007 >    }}
2008  
2009      /**
2010 <     * thenAcceptBothAsync result completes exceptionally if action does
2010 >     * acceptEither result completes exceptionally if action does
2011       */
2012 <    public void testThenAcceptBothAsync3E() {
2013 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2014 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2015 <        FailingBiConsumer r = new FailingBiConsumer();
2016 <        CompletableFuture<Void> g = f.thenAcceptBothAsync(f2, r, new ThreadExecutor());
2017 <        f.complete(one);
2018 <        checkIncomplete(g);
2019 <        f2.complete(two);
2020 <        checkCompletedWithWrappedCFException(g);
2021 <    }
2012 >    public void testAcceptEither_actionFailed1() {
2013 >        for (ExecutionMode m : ExecutionMode.values())
2014 >        for (Integer v1 : new Integer[] { 1, null })
2015 >        for (Integer v2 : new Integer[] { 2, null })
2016 >    {
2017 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
2018 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
2019 >        final FailingConsumer r = new FailingConsumer();
2020 >        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2021 >
2022 >        f.complete(v1);
2023 >        checkCompletedWithWrappedCFException(h);
2024 >        g.complete(v2);
2025 >        checkCompletedNormally(f, v1);
2026 >        checkCompletedNormally(g, v2);
2027 >    }}
2028 >
2029 >    public void testAcceptEither_actionFailed2() {
2030 >        for (ExecutionMode m : ExecutionMode.values())
2031 >        for (Integer v1 : new Integer[] { 1, null })
2032 >        for (Integer v2 : new Integer[] { 2, null })
2033 >    {
2034 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
2035 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
2036 >        final FailingConsumer r = new FailingConsumer();
2037 >        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2038 >
2039 >        g.complete(v2);
2040 >        checkCompletedWithWrappedCFException(h);
2041 >        f.complete(v1);
2042 >        checkCompletedNormally(f, v1);
2043 >        checkCompletedNormally(g, v2);
2044 >    }}
2045  
2046      /**
2047 <     * thenAcceptBothAsync result completes exceptionally if either source cancelled
2047 >     * acceptEither result completes exceptionally if either source cancelled
2048       */
2049 <    public void testThenAcceptBothAsync4E() {
2050 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2051 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2052 <        AddAction r = new AddAction();
2053 <        CompletableFuture<Void> g = f.thenAcceptBothAsync(f2, r, new ThreadExecutor());
2054 <        assertTrue(f.cancel(true));
2055 <        f2.complete(two);
2056 <        checkCompletedWithWrappedCancellationException(g);
2049 >    public void testAcceptEither_sourceCancelled1() {
2050 >        for (ExecutionMode m : ExecutionMode.values())
2051 >        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2052 >        for (Integer v1 : new Integer[] { 1, null })
2053 >    {
2054 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
2055 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
2056 >        final IncAction r = new IncAction();
2057 >        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2058 >
2059 >        assertTrue(f.cancel(mayInterruptIfRunning));
2060 >        checkCompletedWithWrappedCancellationException(h);
2061 >        g.complete(v1);
2062  
2063 <        r = new AddAction();
2064 <        f = new CompletableFuture<Integer>();
2065 <        f2 = new CompletableFuture<Integer>();
2066 <        g = f.thenAcceptBothAsync(f2, r, new ThreadExecutor());
2067 <        f.complete(one);
2068 <        assertTrue(f2.cancel(true));
2069 <        checkCompletedWithWrappedCancellationException(g);
2070 <    }
2063 >        checkCancelled(f);
2064 >        assertEquals(0, r.invocationCount);
2065 >        checkCompletedNormally(g, v1);
2066 >        checkCompletedWithWrappedCancellationException(h);
2067 >    }}
2068 >
2069 >    public void testAcceptEither_sourceCancelled2() {
2070 >        for (ExecutionMode m : ExecutionMode.values())
2071 >        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2072 >        for (Integer v1 : new Integer[] { 1, null })
2073 >    {
2074 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
2075 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
2076 >        final IncAction r = new IncAction();
2077 >        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2078 >
2079 >        assertTrue(g.cancel(mayInterruptIfRunning));
2080 >        checkCompletedWithWrappedCancellationException(h);
2081 >        f.complete(v1);
2082 >
2083 >        checkCancelled(g);
2084 >        assertEquals(0, r.invocationCount);
2085 >        checkCompletedNormally(f, v1);
2086 >        checkCompletedWithWrappedCancellationException(h);
2087 >    }}
2088 >
2089 >    public void testAcceptEither_sourceCancelled3() {
2090 >        for (ExecutionMode m : ExecutionMode.values())
2091 >        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2092 >        for (Integer v1 : new Integer[] { 1, null })
2093 >    {
2094 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
2095 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
2096 >        final IncAction r = new IncAction();
2097 >
2098 >        assertTrue(g.cancel(mayInterruptIfRunning));
2099 >        f.complete(v1);
2100 >        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2101  
2102 <    /**
2103 <     * runAfterBothAsync result completes normally after normal
2104 <     * completion of sources
2105 <     */
2106 <    public void testRunAfterBothAsyncE() {
2107 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2108 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2109 <        Noop r = new Noop();
2110 <        CompletableFuture<Void> g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
2111 <        f.complete(one);
2011 <        checkIncomplete(g);
2012 <        f2.complete(two);
2013 <        checkCompletedNormally(g, null);
2014 <        assertTrue(r.ran);
2015 <    }
2102 >        // unspecified behavior
2103 >        Integer v;
2104 >        try {
2105 >            assertNull(h.join());
2106 >            assertEquals(1, r.invocationCount);
2107 >            assertEquals(inc(v1), r.value);
2108 >        } catch (CompletionException ok) {
2109 >            checkCompletedWithWrappedCancellationException(h);
2110 >            assertEquals(0, r.invocationCount);
2111 >        }
2112  
2113 <    /**
2114 <     * runAfterBothAsync result completes exceptionally after exceptional
2115 <     * completion of source
2116 <     */
2117 <    public void testRunAfterBothAsync2E() {
2118 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2119 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2120 <        Noop r = new Noop();
2121 <        CompletableFuture<Void> g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
2122 <        f.completeExceptionally(new CFException());
2123 <        f2.complete(two);
2124 <        checkCompletedWithWrappedCFException(g);
2113 >        checkCancelled(g);
2114 >        checkCompletedNormally(f, v1);
2115 >    }}
2116 >
2117 >    public void testAcceptEither_sourceCancelled4() {
2118 >        for (ExecutionMode m : ExecutionMode.values())
2119 >        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2120 >        for (Integer v1 : new Integer[] { 1, null })
2121 >    {
2122 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
2123 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
2124 >        final IncAction r = new IncAction();
2125 >
2126 >        assertTrue(f.cancel(mayInterruptIfRunning));
2127 >        g.complete(v1);
2128 >        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2129  
2130 <        r = new Noop();
2131 <        f = new CompletableFuture<Integer>();
2132 <        f2 = new CompletableFuture<Integer>();
2133 <        g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
2134 <        f.complete(one);
2135 <        f2.completeExceptionally(new CFException());
2136 <        checkCompletedWithWrappedCFException(g);
2137 <    }
2130 >        // unspecified behavior
2131 >        Integer v;
2132 >        try {
2133 >            assertNull(h.join());
2134 >            assertEquals(1, r.invocationCount);
2135 >            assertEquals(inc(v1), r.value);
2136 >        } catch (CompletionException ok) {
2137 >            checkCompletedWithWrappedCancellationException(h);
2138 >            assertEquals(0, r.invocationCount);
2139 >        }
2140  
2141 <    /**
2142 <     * runAfterBothAsync result completes exceptionally if action does
2143 <     */
2042 <    public void testRunAfterBothAsync3E() {
2043 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2044 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2045 <        FailingNoop r = new FailingNoop();
2046 <        CompletableFuture<Void> g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
2047 <        f.complete(one);
2048 <        checkIncomplete(g);
2049 <        f2.complete(two);
2050 <        checkCompletedWithWrappedCFException(g);
2051 <    }
2141 >        checkCancelled(f);
2142 >        checkCompletedNormally(g, v1);
2143 >    }}
2144  
2145      /**
2146 <     * runAfterBothAsync result completes exceptionally if either source cancelled
2146 >     * runAfterEither result completes normally after normal completion
2147 >     * of either source
2148       */
2149 <    public void testRunAfterBothAsync4E() {
2150 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2151 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2152 <        Noop r = new Noop();
2153 <        CompletableFuture<Void> g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
2154 <        assertTrue(f.cancel(true));
2155 <        f2.complete(two);
2156 <        checkCompletedWithWrappedCancellationException(g);
2157 <
2158 <        r = new Noop();
2159 <        f = new CompletableFuture<Integer>();
2160 <        f2 = new CompletableFuture<Integer>();
2161 <        g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
2162 <        f.complete(one);
2163 <        assertTrue(f2.cancel(true));
2164 <        checkCompletedWithWrappedCancellationException(g);
2165 <    }
2149 >    public void testRunAfterEither_normalCompletion1() {
2150 >        for (ExecutionMode m : ExecutionMode.values())
2151 >        for (Integer v1 : new Integer[] { 1, null })
2152 >        for (Integer v2 : new Integer[] { 2, null })
2153 >    {
2154 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
2155 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
2156 >        final Noop r = new Noop();
2157 >        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2158 >
2159 >        f.complete(v1);
2160 >        checkCompletedNormally(h, null);
2161 >        assertEquals(1, r.invocationCount);
2162 >        g.complete(v2);
2163 >
2164 >        checkCompletedNormally(f, v1);
2165 >        checkCompletedNormally(g, v2);
2166 >        checkCompletedNormally(h, null);
2167 >        assertEquals(1, r.invocationCount);
2168 >    }}
2169 >
2170 >    public void testRunAfterEither_normalCompletion2() {
2171 >        for (ExecutionMode m : ExecutionMode.values())
2172 >        for (Integer v1 : new Integer[] { 1, null })
2173 >        for (Integer v2 : new Integer[] { 2, null })
2174 >    {
2175 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
2176 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
2177 >        final Noop r = new Noop();
2178 >        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2179 >
2180 >        g.complete(v2);
2181 >        checkCompletedNormally(h, null);
2182 >        assertEquals(1, r.invocationCount);
2183 >        f.complete(v1);
2184 >
2185 >        checkCompletedNormally(f, v1);
2186 >        checkCompletedNormally(g, v2);
2187 >        checkCompletedNormally(h, null);
2188 >        assertEquals(1, r.invocationCount);
2189 >        }}
2190 >
2191 >    public void testRunAfterEither_normalCompletion3() {
2192 >        for (ExecutionMode m : ExecutionMode.values())
2193 >        for (Integer v1 : new Integer[] { 1, null })
2194 >        for (Integer v2 : new Integer[] { 2, null })
2195 >    {
2196 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
2197 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
2198 >        final Noop r = new Noop();
2199 >
2200 >        f.complete(v1);
2201 >        g.complete(v2);
2202 >        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2203 >
2204 >        checkCompletedNormally(h, null);
2205 >        checkCompletedNormally(f, v1);
2206 >        checkCompletedNormally(g, v2);
2207 >        assertEquals(1, r.invocationCount);
2208 >    }}
2209  
2210      /**
2211 <     * applyToEitherAsync result completes normally after normal
2212 <     * completion of sources
2211 >     * runAfterEither result completes exceptionally after exceptional
2212 >     * completion of either source
2213       */
2214 <    public void testApplyToEitherAsyncE() {
2215 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2216 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2217 <        CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
2218 <        f.complete(one);
2219 <        checkCompletedNormally(g, two);
2214 >    public void testRunAfterEither_exceptionalCompletion1() {
2215 >        for (ExecutionMode m : ExecutionMode.values())
2216 >        for (Integer v1 : new Integer[] { 1, null })
2217 >    {
2218 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
2219 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
2220 >        final Noop r = new Noop();
2221 >        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2222 >        final CFException ex = new CFException();
2223 >
2224 >        f.completeExceptionally(ex);
2225 >        checkCompletedWithWrappedCFException(h, ex);
2226 >        g.complete(v1);
2227 >
2228 >        assertEquals(0, r.invocationCount);
2229 >        checkCompletedNormally(g, v1);
2230 >        checkCompletedWithWrappedCFException(f, ex);
2231 >        checkCompletedWithWrappedCFException(h, ex);
2232 >    }}
2233 >
2234 >    public void testRunAfterEither_exceptionalCompletion2() {
2235 >        for (ExecutionMode m : ExecutionMode.values())
2236 >        for (Integer v1 : new Integer[] { 1, null })
2237 >    {
2238 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
2239 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
2240 >        final Noop r = new Noop();
2241 >        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2242 >        final CFException ex = new CFException();
2243 >
2244 >        g.completeExceptionally(ex);
2245 >        checkCompletedWithWrappedCFException(h, ex);
2246 >        f.complete(v1);
2247 >
2248 >        assertEquals(0, r.invocationCount);
2249 >        checkCompletedNormally(f, v1);
2250 >        checkCompletedWithWrappedCFException(g, ex);
2251 >        checkCompletedWithWrappedCFException(h, ex);
2252 >    }}
2253 >
2254 >    public void testRunAfterEither_exceptionalCompletion3() {
2255 >        for (ExecutionMode m : ExecutionMode.values())
2256 >        for (Integer v1 : new Integer[] { 1, null })
2257 >    {
2258 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
2259 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
2260 >        final Noop r = new Noop();
2261 >        final CFException ex = new CFException();
2262 >
2263 >        g.completeExceptionally(ex);
2264 >        f.complete(v1);
2265 >        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2266  
2267 <        f = new CompletableFuture<Integer>();
2268 <        f.complete(one);
2269 <        f2 = new CompletableFuture<Integer>();
2270 <        g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
2271 <        checkCompletedNormally(g, two);
2272 <    }
2267 >        // unspecified behavior
2268 >        Integer v;
2269 >        try {
2270 >            assertNull(h.join());
2271 >            assertEquals(1, r.invocationCount);
2272 >        } catch (CompletionException ok) {
2273 >            checkCompletedWithWrappedCFException(h, ex);
2274 >            assertEquals(0, r.invocationCount);
2275 >        }
2276  
2277 <    /**
2278 <     * applyToEitherAsync result completes exceptionally after exceptional
2279 <     * completion of source
2280 <     */
2281 <    public void testApplyToEitherAsync2E() {
2282 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2283 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2284 <        CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
2285 <        f.completeExceptionally(new CFException());
2286 <        checkCompletedWithWrappedCFException(g);
2277 >        checkCompletedWithWrappedCFException(g, ex);
2278 >        checkCompletedNormally(f, v1);
2279 >    }}
2280 >
2281 >    public void testRunAfterEither_exceptionalCompletion4() {
2282 >        for (ExecutionMode m : ExecutionMode.values())
2283 >        for (Integer v1 : new Integer[] { 1, null })
2284 >    {
2285 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
2286 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
2287 >        final Noop r = new Noop();
2288 >        final CFException ex = new CFException();
2289 >
2290 >        f.completeExceptionally(ex);
2291 >        g.complete(v1);
2292 >        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2293  
2294 <        f = new CompletableFuture<Integer>();
2295 <        f2 = new CompletableFuture<Integer>();
2296 <        f2.completeExceptionally(new CFException());
2297 <        g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
2298 <        f.complete(one);
2299 <        checkCompletedWithWrappedCFException(g);
2300 <    }
2294 >        // unspecified behavior
2295 >        Integer v;
2296 >        try {
2297 >            assertNull(h.join());
2298 >            assertEquals(1, r.invocationCount);
2299 >        } catch (CompletionException ok) {
2300 >            checkCompletedWithWrappedCFException(h, ex);
2301 >            assertEquals(0, r.invocationCount);
2302 >        }
2303  
2304 <    /**
2305 <     * applyToEitherAsync result completes exceptionally if action does
2306 <     */
2114 <    public void testApplyToEitherAsync3E() {
2115 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2116 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2117 <        FailingFunction r = new FailingFunction();
2118 <        CompletableFuture<Integer> g = f.applyToEitherAsync(f2, r, new ThreadExecutor());
2119 <        f.complete(one);
2120 <        checkCompletedWithWrappedCFException(g);
2121 <    }
2304 >        checkCompletedWithWrappedCFException(f, ex);
2305 >        checkCompletedNormally(g, v1);
2306 >    }}
2307  
2308      /**
2309 <     * applyToEitherAsync result completes exceptionally if either source cancelled
2309 >     * runAfterEither result completes exceptionally if action does
2310       */
2311 <    public void testApplyToEitherAsync4E() {
2312 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2313 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2314 <        CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
2315 <        assertTrue(f.cancel(true));
2316 <        checkCompletedWithWrappedCancellationException(g);
2317 <
2318 <        f = new CompletableFuture<Integer>();
2319 <        f2 = new CompletableFuture<Integer>();
2320 <        assertTrue(f2.cancel(true));
2321 <        g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
2322 <        checkCompletedWithWrappedCancellationException(g);
2323 <    }
2311 >    public void testRunAfterEither_actionFailed1() {
2312 >        for (ExecutionMode m : ExecutionMode.values())
2313 >        for (Integer v1 : new Integer[] { 1, null })
2314 >        for (Integer v2 : new Integer[] { 2, null })
2315 >    {
2316 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
2317 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
2318 >        final FailingRunnable r = new FailingRunnable();
2319 >        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2320 >
2321 >        f.complete(v1);
2322 >        checkCompletedWithWrappedCFException(h);
2323 >        g.complete(v2);
2324 >        checkCompletedNormally(f, v1);
2325 >        checkCompletedNormally(g, v2);
2326 >    }}
2327 >
2328 >    public void testRunAfterEither_actionFailed2() {
2329 >        for (ExecutionMode m : ExecutionMode.values())
2330 >        for (Integer v1 : new Integer[] { 1, null })
2331 >        for (Integer v2 : new Integer[] { 2, null })
2332 >    {
2333 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
2334 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
2335 >        final FailingRunnable r = new FailingRunnable();
2336 >        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2337 >
2338 >        g.complete(v2);
2339 >        checkCompletedWithWrappedCFException(h);
2340 >        f.complete(v1);
2341 >        checkCompletedNormally(f, v1);
2342 >        checkCompletedNormally(g, v2);
2343 >    }}
2344  
2345      /**
2346 <     * acceptEitherAsync result completes normally after normal
2142 <     * completion of sources
2346 >     * runAfterEither result completes exceptionally if either source cancelled
2347       */
2348 <    public void testAcceptEitherAsyncE() {
2349 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2350 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2351 <        IncAction r = new IncAction();
2352 <        CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2353 <        f.complete(one);
2354 <        checkCompletedNormally(g, null);
2355 <        assertEquals(r.value, 2);
2356 <
2357 <        r = new IncAction();
2358 <        f = new CompletableFuture<Integer>();
2359 <        f.complete(one);
2360 <        f2 = new CompletableFuture<Integer>();
2157 <        g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2158 <        checkCompletedNormally(g, null);
2159 <        assertEquals(r.value, 2);
2160 <    }
2348 >    public void testRunAfterEither_sourceCancelled1() {
2349 >        for (ExecutionMode m : ExecutionMode.values())
2350 >        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2351 >        for (Integer v1 : new Integer[] { 1, null })
2352 >    {
2353 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
2354 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
2355 >        final Noop r = new Noop();
2356 >        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2357 >
2358 >        assertTrue(f.cancel(mayInterruptIfRunning));
2359 >        checkCompletedWithWrappedCancellationException(h);
2360 >        g.complete(v1);
2361  
2362 <    /**
2363 <     * acceptEitherAsync result completes exceptionally after exceptional
2364 <     * completion of source
2365 <     */
2366 <    public void testAcceptEitherAsync2E() {
2367 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2368 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2369 <        IncAction r = new IncAction();
2370 <        CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2371 <        f.completeExceptionally(new CFException());
2372 <        checkCompletedWithWrappedCFException(g);
2362 >        checkCancelled(f);
2363 >        assertEquals(0, r.invocationCount);
2364 >        checkCompletedNormally(g, v1);
2365 >        checkCompletedWithWrappedCancellationException(h);
2366 >    }}
2367 >
2368 >    public void testRunAfterEither_sourceCancelled2() {
2369 >        for (ExecutionMode m : ExecutionMode.values())
2370 >        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2371 >        for (Integer v1 : new Integer[] { 1, null })
2372 >    {
2373 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
2374 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
2375 >        final Noop r = new Noop();
2376 >        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2377 >
2378 >        assertTrue(g.cancel(mayInterruptIfRunning));
2379 >        checkCompletedWithWrappedCancellationException(h);
2380 >        f.complete(v1);
2381 >
2382 >        checkCancelled(g);
2383 >        assertEquals(0, r.invocationCount);
2384 >        checkCompletedNormally(f, v1);
2385 >        checkCompletedWithWrappedCancellationException(h);
2386 >    }}
2387 >
2388 >    public void testRunAfterEither_sourceCancelled3() {
2389 >        for (ExecutionMode m : ExecutionMode.values())
2390 >        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2391 >        for (Integer v1 : new Integer[] { 1, null })
2392 >    {
2393 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
2394 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
2395 >        final Noop r = new Noop();
2396 >
2397 >        assertTrue(g.cancel(mayInterruptIfRunning));
2398 >        f.complete(v1);
2399 >        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2400  
2401 <        r = new IncAction();
2402 <        f = new CompletableFuture<Integer>();
2403 <        f2 = new CompletableFuture<Integer>();
2404 <        f2.completeExceptionally(new CFException());
2405 <        g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2406 <        f.complete(one);
2407 <        checkCompletedWithWrappedCFException(g);
2408 <    }
2401 >        // unspecified behavior
2402 >        Integer v;
2403 >        try {
2404 >            assertNull(h.join());
2405 >            assertEquals(1, r.invocationCount);
2406 >        } catch (CompletionException ok) {
2407 >            checkCompletedWithWrappedCancellationException(h);
2408 >            assertEquals(0, r.invocationCount);
2409 >        }
2410  
2411 <    /**
2412 <     * acceptEitherAsync result completes exceptionally if action does
2413 <     */
2414 <    public void testAcceptEitherAsync3E() {
2415 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2416 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2417 <        FailingConsumer r = new FailingConsumer();
2418 <        CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2419 <        f.complete(one);
2420 <        checkCompletedWithWrappedCFException(g);
2421 <    }
2411 >        checkCancelled(g);
2412 >        checkCompletedNormally(f, v1);
2413 >    }}
2414 >
2415 >    public void testRunAfterEither_sourceCancelled4() {
2416 >        for (ExecutionMode m : ExecutionMode.values())
2417 >        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2418 >        for (Integer v1 : new Integer[] { 1, null })
2419 >    {
2420 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
2421 >        final CompletableFuture<Integer> g = new CompletableFuture<>();
2422 >        final Noop r = new Noop();
2423 >
2424 >        assertTrue(f.cancel(mayInterruptIfRunning));
2425 >        g.complete(v1);
2426 >        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2427  
2428 <    /**
2429 <     * acceptEitherAsync result completes exceptionally if either
2430 <     * source cancelled
2431 <     */
2432 <    public void testAcceptEitherAsync4E() {
2433 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2434 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2435 <        IncAction r = new IncAction();
2436 <        CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2204 <        assertTrue(f.cancel(true));
2205 <        checkCompletedWithWrappedCancellationException(g);
2428 >        // unspecified behavior
2429 >        Integer v;
2430 >        try {
2431 >            assertNull(h.join());
2432 >            assertEquals(1, r.invocationCount);
2433 >        } catch (CompletionException ok) {
2434 >            checkCompletedWithWrappedCancellationException(h);
2435 >            assertEquals(0, r.invocationCount);
2436 >        }
2437  
2438 <        r = new IncAction();
2439 <        f = new CompletableFuture<Integer>();
2440 <        f2 = new CompletableFuture<Integer>();
2210 <        assertTrue(f2.cancel(true));
2211 <        g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2212 <        checkCompletedWithWrappedCancellationException(g);
2213 <    }
2438 >        checkCancelled(f);
2439 >        checkCompletedNormally(g, v1);
2440 >    }}
2441  
2442      /**
2443 <     * runAfterEitherAsync result completes normally after normal
2217 <     * completion of sources
2443 >     * thenCompose result completes normally after normal completion of source
2444       */
2445 <    public void testRunAfterEitherAsyncE() {
2446 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2447 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2448 <        Noop r = new Noop();
2449 <        CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2450 <        f.complete(one);
2451 <        checkCompletedNormally(g, null);
2452 <        assertTrue(r.ran);
2453 <
2454 <        r = new Noop();
2455 <        f = new CompletableFuture<Integer>();
2456 <        f.complete(one);
2457 <        f2 = new CompletableFuture<Integer>();
2458 <        g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2459 <        checkCompletedNormally(g, null);
2234 <        assertTrue(r.ran);
2235 <    }
2445 >    public void testThenCompose_normalCompletion() {
2446 >        for (ExecutionMode m : ExecutionMode.values())
2447 >        for (boolean createIncomplete : new boolean[] { true, false })
2448 >        for (Integer v1 : new Integer[] { 1, null })
2449 >    {
2450 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
2451 >        final CompletableFutureInc r = new CompletableFutureInc();
2452 >        if (!createIncomplete) f.complete(v1);
2453 >        final CompletableFuture<Integer> g = f.thenCompose(r);
2454 >        if (createIncomplete) f.complete(v1);
2455 >
2456 >        checkCompletedNormally(g, inc(v1));
2457 >        checkCompletedNormally(f, v1);
2458 >        assertEquals(1, r.invocationCount);
2459 >    }}
2460  
2461      /**
2462 <     * runAfterEitherAsync result completes exceptionally after exceptional
2462 >     * thenCompose result completes exceptionally after exceptional
2463       * completion of source
2464       */
2465 <    public void testRunAfterEitherAsync2E() {
2466 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2467 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2468 <        Noop r = new Noop();
2469 <        CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2470 <        f.completeExceptionally(new CFException());
2471 <        checkCompletedWithWrappedCFException(g);
2472 <
2473 <        r = new Noop();
2474 <        f = new CompletableFuture<Integer>();
2475 <        f2 = new CompletableFuture<Integer>();
2476 <        f2.completeExceptionally(new CFException());
2477 <        g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2478 <        f.complete(one);
2479 <        checkCompletedWithWrappedCFException(g);
2256 <    }
2257 <
2258 <    /**
2259 <     * runAfterEitherAsync result completes exceptionally if action does
2260 <     */
2261 <    public void testRunAfterEitherAsync3E() {
2262 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2263 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2264 <        FailingNoop r = new FailingNoop();
2265 <        CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2266 <        f.complete(one);
2267 <        checkCompletedWithWrappedCFException(g);
2268 <    }
2269 <
2270 <    /**
2271 <     * runAfterEitherAsync result completes exceptionally if either
2272 <     * source cancelled
2273 <     */
2274 <    public void testRunAfterEitherAsync4E() {
2275 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2276 <        CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2277 <        Noop r = new Noop();
2278 <        CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2279 <        assertTrue(f.cancel(true));
2280 <        checkCompletedWithWrappedCancellationException(g);
2281 <
2282 <        r = new Noop();
2283 <        f = new CompletableFuture<Integer>();
2284 <        f2 = new CompletableFuture<Integer>();
2285 <        assertTrue(f2.cancel(true));
2286 <        g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2287 <        checkCompletedWithWrappedCancellationException(g);
2288 <    }
2465 >    public void testThenCompose_exceptionalCompletion() {
2466 >        for (ExecutionMode m : ExecutionMode.values())
2467 >        for (boolean createIncomplete : new boolean[] { true, false })
2468 >    {
2469 >        final CFException ex = new CFException();
2470 >        final CompletableFutureInc r = new CompletableFutureInc();
2471 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
2472 >        if (!createIncomplete) f.completeExceptionally(ex);
2473 >        final CompletableFuture<Integer> g = f.thenCompose(r);
2474 >        if (createIncomplete) f.completeExceptionally(ex);
2475 >
2476 >        checkCompletedWithWrappedCFException(g, ex);
2477 >        checkCompletedWithWrappedCFException(f, ex);
2478 >        assertEquals(0, r.invocationCount);
2479 >    }}
2480  
2481      /**
2482 <     * thenComposeAsync result completes normally after normal
2292 <     * completion of source
2482 >     * thenCompose result completes exceptionally if action does
2483       */
2484 <    public void testThenComposeAsyncE() {
2485 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2486 <        CompletableFutureInc r = new CompletableFutureInc();
2487 <        CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
2488 <        f.complete(one);
2489 <        checkCompletedNormally(g, two);
2490 <    }
2484 >    public void testThenCompose_actionFailed() {
2485 >        for (ExecutionMode m : ExecutionMode.values())
2486 >        for (boolean createIncomplete : new boolean[] { true, false })
2487 >        for (Integer v1 : new Integer[] { 1, null })
2488 >    {
2489 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
2490 >        final FailingCompletableFutureFunction r
2491 >            = new FailingCompletableFutureFunction();
2492 >        if (!createIncomplete) f.complete(v1);
2493 >        final CompletableFuture<Integer> g = f.thenCompose(r);
2494 >        if (createIncomplete) f.complete(v1);
2495  
2302    /**
2303     * thenComposeAsync result completes exceptionally after
2304     * exceptional completion of source
2305     */
2306    public void testThenComposeAsync2E() {
2307        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2308        CompletableFutureInc r = new CompletableFutureInc();
2309        CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
2310        f.completeExceptionally(new CFException());
2496          checkCompletedWithWrappedCFException(g);
2497 <    }
2497 >        checkCompletedNormally(f, v1);
2498 >    }}
2499  
2500      /**
2501 <     * thenComposeAsync result completes exceptionally if action does
2501 >     * thenCompose result completes exceptionally if source cancelled
2502       */
2503 <    public void testThenComposeAsync3E() {
2504 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2505 <        FailingCompletableFutureFunction r = new FailingCompletableFutureFunction();
2506 <        CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
2507 <        f.complete(one);
2508 <        checkCompletedWithWrappedCFException(g);
2509 <    }
2503 >    public void testThenCompose_sourceCancelled() {
2504 >        for (ExecutionMode m : ExecutionMode.values())
2505 >        for (boolean createIncomplete : new boolean[] { true, false })
2506 >        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2507 >    {
2508 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
2509 >        final CompletableFutureInc r = new CompletableFutureInc();
2510 >        if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
2511 >        final CompletableFuture<Integer> g = f.thenCompose(r);
2512 >        if (createIncomplete) {
2513 >            checkIncomplete(g);
2514 >            assertTrue(f.cancel(mayInterruptIfRunning));
2515 >        }
2516  
2325    /**
2326     * thenComposeAsync result completes exceptionally if source cancelled
2327     */
2328    public void testThenComposeAsync4E() {
2329        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2330        CompletableFutureInc r = new CompletableFutureInc();
2331        CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
2332        assertTrue(f.cancel(true));
2517          checkCompletedWithWrappedCancellationException(g);
2518 <    }
2518 >        checkCancelled(f);
2519 >    }}
2520  
2521      // other static methods
2522  
# Line 2340 | Line 2525 | public class CompletableFutureTest exten
2525       * with the value null
2526       */
2527      public void testAllOf_empty() throws Exception {
2528 <        CompletableFuture<?> f = CompletableFuture.allOf();
2528 >        CompletableFuture<Void> f = CompletableFuture.allOf();
2529          checkCompletedNormally(f, null);
2530      }
2531  
2532      /**
2533 <     * allOf returns a future completed when all components complete
2533 >     * allOf returns a future completed normally with the value null
2534 >     * when all components complete normally
2535       */
2536 <    public void testAllOf() throws Exception {
2536 >    public void testAllOf_normal() throws Exception {
2537          for (int k = 1; k < 20; ++k) {
2538 <            CompletableFuture[] fs = new CompletableFuture[k];
2538 >            CompletableFuture<Integer>[] fs = (CompletableFuture<Integer>[]) new CompletableFuture[k];
2539              for (int i = 0; i < k; ++i)
2540 <                fs[i] = new CompletableFuture<Integer>();
2540 >                fs[i] = new CompletableFuture<>();
2541              CompletableFuture<Void> f = CompletableFuture.allOf(fs);
2542              for (int i = 0; i < k; ++i) {
2543                  checkIncomplete(f);
2544 +                checkIncomplete(CompletableFuture.allOf(fs));
2545                  fs[i].complete(one);
2546              }
2547              checkCompletedNormally(f, null);
2548 +            checkCompletedNormally(CompletableFuture.allOf(fs), null);
2549          }
2550      }
2551  
# Line 2365 | Line 2553 | public class CompletableFutureTest exten
2553       * anyOf(no component futures) returns an incomplete future
2554       */
2555      public void testAnyOf_empty() throws Exception {
2556 <        CompletableFuture<?> f = CompletableFuture.anyOf();
2556 >        CompletableFuture<Object> f = CompletableFuture.anyOf();
2557          checkIncomplete(f);
2558      }
2559  
2560      /**
2561 <     * allOf returns a future completed when any components complete
2561 >     * anyOf returns a future completed normally with a value when
2562 >     * a component future does
2563       */
2564 <    public void testAnyOf() throws Exception {
2565 <        for (int k = 1; k < 20; ++k) {
2564 >    public void testAnyOf_normal() throws Exception {
2565 >        for (int k = 0; k < 10; ++k) {
2566              CompletableFuture[] fs = new CompletableFuture[k];
2567              for (int i = 0; i < k; ++i)
2568 <                fs[i] = new CompletableFuture<Integer>();
2568 >                fs[i] = new CompletableFuture<>();
2569              CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
2570              checkIncomplete(f);
2571              for (int i = 0; i < k; ++i) {
2572                  fs[i].complete(one);
2573                  checkCompletedNormally(f, one);
2574 +                checkCompletedNormally(CompletableFuture.anyOf(fs), one);
2575 +            }
2576 +        }
2577 +    }
2578 +
2579 +    /**
2580 +     * anyOf result completes exceptionally when any component does.
2581 +     */
2582 +    public void testAnyOf_exceptional() throws Exception {
2583 +        for (int k = 0; k < 10; ++k) {
2584 +            CompletableFuture[] fs = new CompletableFuture[k];
2585 +            for (int i = 0; i < k; ++i)
2586 +                fs[i] = new CompletableFuture<>();
2587 +            CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
2588 +            checkIncomplete(f);
2589 +            for (int i = 0; i < k; ++i) {
2590 +                fs[i].completeExceptionally(new CFException());
2591 +                checkCompletedWithWrappedCFException(f);
2592 +                checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
2593              }
2594          }
2595      }
# Line 2390 | Line 2598 | public class CompletableFutureTest exten
2598       * Completion methods throw NullPointerException with null arguments
2599       */
2600      public void testNPE() {
2601 <        CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2602 <        CompletableFuture<Integer> g = new CompletableFuture<Integer>();
2603 <        CompletableFuture h;
2604 <        try { h = f.thenApply(null); } catch (NullPointerException ok) {}
2605 <        try { h = f.thenAccept(null); } catch (NullPointerException ok) {}
2606 <        try { h = f.thenRun(null); } catch (NullPointerException ok) {}
2607 <        try { h = f.thenCombine(g, null); } catch (NullPointerException ok) {}
2608 <        try { h = f.thenCombine(null, null); } catch (NullPointerException ok) {}
2609 <        try { h = f.applyToEither(g, null); } catch (NullPointerException ok) {}
2610 <        try { h = f.applyToEither(null, null); } catch (NullPointerException ok) {}
2611 <        try { h = f.thenAcceptBoth(g, null); } catch (NullPointerException ok) {}
2612 <        try { h = f.thenAcceptBoth(null, null); } catch (NullPointerException ok) {}
2613 <        try { h = f.runAfterEither(g, null); } catch (NullPointerException ok) {}
2614 <        try { h = f.runAfterEither(null, null); } catch (NullPointerException ok) {}
2615 <        try { h = f.runAfterBoth(g, null); } catch (NullPointerException ok) {}
2616 <        try { h = f.runAfterBoth(null, null); } catch (NullPointerException ok) {}
2617 <        try { h = f.exceptionally(null); } catch (NullPointerException ok) {}
2618 <        try { h = f.handle(null); } catch (NullPointerException ok) {}
2619 <        try { h = f.thenCompose(null); } catch (NullPointerException ok) {}
2620 <
2621 <        try { h = f.thenApplyAsync(null); } catch (NullPointerException ok) {}
2622 <        try { h = f.thenAcceptAsync(null); } catch (NullPointerException ok) {}
2623 <        try { h = f.thenRunAsync(null); } catch (NullPointerException ok) {}
2624 <        try { h = f.thenCombineAsync(g, null); } catch (NullPointerException ok) {}
2625 <        try { h = f.thenCombineAsync(null, null); } catch (NullPointerException ok) {}
2626 <        try { h = f.applyToEitherAsync(g, null); } catch (NullPointerException ok) {}
2627 <        try { h = f.applyToEitherAsync(null, null); } catch (NullPointerException ok) {}
2628 <        try { h = f.thenAcceptBothAsync(g, null); } catch (NullPointerException ok) {}
2629 <        try { h = f.thenAcceptBothAsync(null, null); } catch (NullPointerException ok) {}
2630 <        try { h = f.runAfterEitherAsync(g, null); } catch (NullPointerException ok) {}
2631 <        try { h = f.runAfterEitherAsync(null, null); } catch (NullPointerException ok) {}
2632 <        try { h = f.runAfterBothAsync(g, null); } catch (NullPointerException ok) {}
2633 <        try { h = f.runAfterBothAsync(null, null); } catch (NullPointerException ok) {}
2601 >        CompletableFuture<Integer> f = new CompletableFuture<>();
2602 >        CompletableFuture<Integer> g = new CompletableFuture<>();
2603 >        CompletableFuture<Integer> nullFuture = (CompletableFuture<Integer>)null;
2604 >        CompletableFuture<?> h;
2605 >        ThreadExecutor exec = new ThreadExecutor();
2606 >
2607 >        Runnable[] throwingActions = {
2608 >            () -> CompletableFuture.supplyAsync(null),
2609 >            () -> CompletableFuture.supplyAsync(null, exec),
2610 >            () -> CompletableFuture.supplyAsync(supplyOne, null),
2611 >
2612 >            () -> CompletableFuture.runAsync(null),
2613 >            () -> CompletableFuture.runAsync(null, exec),
2614 >            () -> CompletableFuture.runAsync(() -> {}, null),
2615 >
2616 >            () -> f.completeExceptionally(null),
2617 >
2618 >            () -> f.thenApply(null),
2619 >            () -> f.thenApplyAsync(null),
2620 >            () -> f.thenApplyAsync((x) -> x, null),
2621 >            () -> f.thenApplyAsync(null, exec),
2622 >
2623 >            () -> f.thenAccept(null),
2624 >            () -> f.thenAcceptAsync(null),
2625 >            () -> f.thenAcceptAsync((x) -> {} , null),
2626 >            () -> f.thenAcceptAsync(null, exec),
2627 >
2628 >            () -> f.thenRun(null),
2629 >            () -> f.thenRunAsync(null),
2630 >            () -> f.thenRunAsync(() -> {} , null),
2631 >            () -> f.thenRunAsync(null, exec),
2632 >
2633 >            () -> f.thenCombine(g, null),
2634 >            () -> f.thenCombineAsync(g, null),
2635 >            () -> f.thenCombineAsync(g, null, exec),
2636 >            () -> f.thenCombine(nullFuture, (x, y) -> x),
2637 >            () -> f.thenCombineAsync(nullFuture, (x, y) -> x),
2638 >            () -> f.thenCombineAsync(nullFuture, (x, y) -> x, exec),
2639 >            () -> f.thenCombineAsync(g, (x, y) -> x, null),
2640 >
2641 >            () -> f.thenAcceptBoth(g, null),
2642 >            () -> f.thenAcceptBothAsync(g, null),
2643 >            () -> f.thenAcceptBothAsync(g, null, exec),
2644 >            () -> f.thenAcceptBoth(nullFuture, (x, y) -> {}),
2645 >            () -> f.thenAcceptBothAsync(nullFuture, (x, y) -> {}),
2646 >            () -> f.thenAcceptBothAsync(nullFuture, (x, y) -> {}, exec),
2647 >            () -> f.thenAcceptBothAsync(g, (x, y) -> {}, null),
2648 >
2649 >            () -> f.runAfterBoth(g, null),
2650 >            () -> f.runAfterBothAsync(g, null),
2651 >            () -> f.runAfterBothAsync(g, null, exec),
2652 >            () -> f.runAfterBoth(nullFuture, () -> {}),
2653 >            () -> f.runAfterBothAsync(nullFuture, () -> {}),
2654 >            () -> f.runAfterBothAsync(nullFuture, () -> {}, exec),
2655 >            () -> f.runAfterBothAsync(g, () -> {}, null),
2656 >
2657 >            () -> f.applyToEither(g, null),
2658 >            () -> f.applyToEitherAsync(g, null),
2659 >            () -> f.applyToEitherAsync(g, null, exec),
2660 >            () -> f.applyToEither(nullFuture, (x) -> x),
2661 >            () -> f.applyToEitherAsync(nullFuture, (x) -> x),
2662 >            () -> f.applyToEitherAsync(nullFuture, (x) -> x, exec),
2663 >            () -> f.applyToEitherAsync(g, (x) -> x, null),
2664 >
2665 >            () -> f.acceptEither(g, null),
2666 >            () -> f.acceptEitherAsync(g, null),
2667 >            () -> f.acceptEitherAsync(g, null, exec),
2668 >            () -> f.acceptEither(nullFuture, (x) -> {}),
2669 >            () -> f.acceptEitherAsync(nullFuture, (x) -> {}),
2670 >            () -> f.acceptEitherAsync(nullFuture, (x) -> {}, exec),
2671 >            () -> f.acceptEitherAsync(g, (x) -> {}, null),
2672 >
2673 >            () -> f.runAfterEither(g, null),
2674 >            () -> f.runAfterEitherAsync(g, null),
2675 >            () -> f.runAfterEitherAsync(g, null, exec),
2676 >            () -> f.runAfterEither(nullFuture, () -> {}),
2677 >            () -> f.runAfterEitherAsync(nullFuture, () -> {}),
2678 >            () -> f.runAfterEitherAsync(nullFuture, () -> {}, exec),
2679 >            () -> f.runAfterEitherAsync(g, () -> {}, null),
2680 >
2681 >            () -> f.thenCompose(null),
2682 >            () -> f.thenComposeAsync(null),
2683 >            () -> f.thenComposeAsync(new CompletableFutureInc(), null),
2684 >            () -> f.thenComposeAsync(null, exec),
2685 >
2686 >            () -> f.exceptionally(null),
2687 >
2688 >            () -> f.handle(null),
2689 >
2690 >            () -> CompletableFuture.allOf((CompletableFuture<?>)null),
2691 >            () -> CompletableFuture.allOf((CompletableFuture<?>[])null),
2692 >            () -> CompletableFuture.allOf(f, null),
2693 >            () -> CompletableFuture.allOf(null, f),
2694 >
2695 >            () -> CompletableFuture.anyOf((CompletableFuture<?>)null),
2696 >            () -> CompletableFuture.anyOf((CompletableFuture<?>[])null),
2697 >            () -> CompletableFuture.anyOf(f, null),
2698 >            () -> CompletableFuture.anyOf(null, f),
2699 >
2700 >            () -> f.obtrudeException(null),
2701 >        };
2702 >
2703 >        assertThrows(NullPointerException.class, throwingActions);
2704 >        assertEquals(0, exec.count.get());
2705 >    }
2706 >
2707 >    /**
2708 >     * toCompletableFuture returns this CompletableFuture.
2709 >     */
2710 >    public void testToCompletableFuture() {
2711 >        CompletableFuture<Integer> f = new CompletableFuture<>();
2712 >        assertSame(f, f.toCompletableFuture());
2713 >    }
2714 >
2715 >    /**
2716 >     * whenComplete action executes on normal completion, propagating
2717 >     * source result.
2718 >     */
2719 >    public void testWhenComplete_normalCompletion1() {
2720 >        for (ExecutionMode m : ExecutionMode.values())
2721 >        for (boolean createIncomplete : new boolean[] { true, false })
2722 >        for (Integer v1 : new Integer[] { 1, null })
2723 >    {
2724 >        final AtomicInteger a = new AtomicInteger(0);
2725 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
2726 >        if (!createIncomplete) f.complete(v1);
2727 >        final CompletableFuture<Integer> g = m.whenComplete
2728 >            (f,
2729 >             (Integer x, Throwable t) -> {
2730 >                threadAssertSame(x, v1);
2731 >                threadAssertNull(t);
2732 >                a.getAndIncrement();
2733 >            });
2734 >        if (createIncomplete) f.complete(v1);
2735 >
2736 >        checkCompletedNormally(g, v1);
2737 >        checkCompletedNormally(f, v1);
2738 >        assertEquals(1, a.get());
2739 >    }}
2740 >
2741 >    /**
2742 >     * whenComplete action executes on exceptional completion, propagating
2743 >     * source result.
2744 >     */
2745 >    public void testWhenComplete_exceptionalCompletion() {
2746 >        for (ExecutionMode m : ExecutionMode.values())
2747 >        for (boolean createIncomplete : new boolean[] { true, false })
2748 >        for (Integer v1 : new Integer[] { 1, null })
2749 >    {
2750 >        final AtomicInteger a = new AtomicInteger(0);
2751 >        final CFException ex = new CFException();
2752 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
2753 >        if (!createIncomplete) f.completeExceptionally(ex);
2754 >        final CompletableFuture<Integer> g = m.whenComplete
2755 >            (f,
2756 >             (Integer x, Throwable t) -> {
2757 >                threadAssertNull(x);
2758 >                threadAssertSame(t, ex);
2759 >                a.getAndIncrement();
2760 >            });
2761 >        if (createIncomplete) f.completeExceptionally(ex);
2762 >        checkCompletedWithWrappedCFException(f, ex);
2763 >        checkCompletedWithWrappedCFException(g, ex);
2764 >        assertEquals(1, a.get());
2765 >    }}
2766 >
2767 >    /**
2768 >     * whenComplete action executes on cancelled source, propagating
2769 >     * CancellationException.
2770 >     */
2771 >    public void testWhenComplete_sourceCancelled() {
2772 >        for (ExecutionMode m : ExecutionMode.values())
2773 >        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2774 >        for (boolean createIncomplete : new boolean[] { true, false })
2775 >    {
2776 >        final AtomicInteger a = new AtomicInteger(0);
2777 >        final CompletableFuture<Integer> f = new CompletableFuture<>();
2778 >        if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
2779 >        final CompletableFuture<Integer> g = m.whenComplete
2780 >            (f,
2781 >             (Integer x, Throwable t) -> {
2782 >                threadAssertNull(x);
2783 >                threadAssertTrue(t instanceof CancellationException);
2784 >                a.getAndIncrement();
2785 >            });
2786 >        if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
2787  
2788 <    }
2788 >        //try { g.join(); } catch (Throwable t) { throw new Error(t); }
2789 >        checkCompletedWithWrappedCancellationException(g);
2790 >        checkCancelled(f);
2791 >        assertEquals(1, a.get());
2792 >    }}
2793  
2794 +    /**
2795 +     * If a whenComplete action throws an exception when triggered by
2796 +     * a normal completion, it completes exceptionally
2797 +     */
2798 +    public void testWhenComplete_actionFailed() {
2799 +        for (boolean createIncomplete : new boolean[] { true, false })
2800 +        for (ExecutionMode m : ExecutionMode.values())
2801 +        for (Integer v1 : new Integer[] { 1, null })
2802 +    {
2803 +        final AtomicInteger a = new AtomicInteger(0);
2804 +        final CFException ex = new CFException();
2805 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2806 +        if (!createIncomplete) f.complete(v1);
2807 +        final CompletableFuture<Integer> g = m.whenComplete
2808 +            (f,
2809 +             (Integer x, Throwable t) -> {
2810 +                threadAssertSame(x, v1);
2811 +                threadAssertNull(t);
2812 +                a.getAndIncrement();
2813 +                throw ex;
2814 +            });
2815 +        if (createIncomplete) f.complete(v1);
2816 +        checkCompletedNormally(f, v1);
2817 +        checkCompletedWithWrappedCFException(g, ex);
2818 +        assertEquals(1, a.get());
2819 +    }}
2820 +
2821 +    /**
2822 +     * If a whenComplete action throws an exception when triggered by
2823 +     * a source completion that also throws an exception, the source
2824 +     * exception takes precedence.
2825 +     */
2826 +    public void testWhenComplete_actionFailedSourceFailed() {
2827 +        for (boolean createIncomplete : new boolean[] { true, false })
2828 +        for (ExecutionMode m : ExecutionMode.values())
2829 +        for (Integer v1 : new Integer[] { 1, null })
2830 +    {
2831 +        final AtomicInteger a = new AtomicInteger(0);
2832 +        final CFException ex1 = new CFException();
2833 +        final CFException ex2 = new CFException();
2834 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2835 +
2836 +        if (!createIncomplete) f.completeExceptionally(ex1);
2837 +        final CompletableFuture<Integer> g = m.whenComplete
2838 +            (f,
2839 +             (Integer x, Throwable t) -> {
2840 +                threadAssertSame(t, ex1);
2841 +                threadAssertNull(x);
2842 +                a.getAndIncrement();
2843 +                throw ex2;
2844 +            });
2845 +        if (createIncomplete) f.completeExceptionally(ex1);
2846 +
2847 +        checkCompletedWithWrappedCFException(f, ex1);
2848 +        checkCompletedWithWrappedCFException(g, ex1);
2849 +        assertEquals(1, a.get());
2850 +    }}
2851  
2852   }

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