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Comparing jsr166/src/test/tck/CompletableFutureTest.java (file contents):
Revision 1.1 by jsr166, Wed Feb 6 19:55:06 2013 UTC vs.
Revision 1.39 by jsr166, Mon Jun 2 00:46:52 2014 UTC

# Line 1 | Line 1
1   /*
2 < * Written by Doug Lea with assistance from members of JCP JSR-166
3 < * Expert Group and released to the public domain, as explained at
2 > * Written by Doug Lea and Martin Buchholz with assistance from
3 > * members of JCP JSR-166 Expert Group and released to the public
4 > * domain, as explained at
5   * http://creativecommons.org/publicdomain/zero/1.0/
5 * Other contributors include Andrew Wright, Jeffrey Hayes,
6 * Pat Fisher, Mike Judd.
6   */
7  
8   import junit.framework.*;
9   import java.util.concurrent.Callable;
10 + import java.util.concurrent.Executor;
11 + import java.util.concurrent.ExecutorService;
12 + import java.util.concurrent.Executors;
13   import java.util.concurrent.CancellationException;
14   import java.util.concurrent.CountDownLatch;
15   import java.util.concurrent.ExecutionException;
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.TimeoutException;
21   import java.util.concurrent.atomic.AtomicInteger;
22   import static java.util.concurrent.TimeUnit.MILLISECONDS;
23   import static java.util.concurrent.TimeUnit.SECONDS;
24   import java.util.*;
25 + import java.util.function.Supplier;
26 + import java.util.function.Consumer;
27 + import java.util.function.BiConsumer;
28 + import java.util.function.Function;
29 + import java.util.function.BiFunction;
30  
31   public class CompletableFutureTest extends JSR166TestCase {
32  
# Line 28 | Line 37 | public class CompletableFutureTest exten
37          return new TestSuite(CompletableFutureTest.class);
38      }
39  
40 +    static class CFException extends RuntimeException {}
41 +
42 +    void checkIncomplete(CompletableFuture<?> f) {
43 +        assertFalse(f.isDone());
44 +        assertFalse(f.isCancelled());
45 +        assertTrue(f.toString().contains("[Not completed]"));
46 +        try {
47 +            assertNull(f.getNow(null));
48 +        } catch (Throwable fail) { threadUnexpectedException(fail); }
49 +        try {
50 +            f.get(0L, SECONDS);
51 +            shouldThrow();
52 +        }
53 +        catch (TimeoutException success) {}
54 +        catch (Throwable fail) { threadUnexpectedException(fail); }
55 +    }
56 +
57 +    <T> void checkCompletedNormally(CompletableFuture<T> f, T value) {
58 +        try {
59 +            assertEquals(value, f.get(LONG_DELAY_MS, MILLISECONDS));
60 +        } catch (Throwable fail) { threadUnexpectedException(fail); }
61 +        try {
62 +            assertEquals(value, f.join());
63 +        } catch (Throwable fail) { threadUnexpectedException(fail); }
64 +        try {
65 +            assertEquals(value, f.getNow(null));
66 +        } catch (Throwable fail) { threadUnexpectedException(fail); }
67 +        try {
68 +            assertEquals(value, f.get());
69 +        } catch (Throwable fail) { threadUnexpectedException(fail); }
70 +        assertTrue(f.isDone());
71 +        assertFalse(f.isCancelled());
72 +        assertFalse(f.isCompletedExceptionally());
73 +        assertTrue(f.toString().contains("[Completed normally]"));
74 +    }
75 +
76 +    void checkCompletedWithWrappedCFException(CompletableFuture<?> f) {
77 +        try {
78 +            f.get(LONG_DELAY_MS, MILLISECONDS);
79 +            shouldThrow();
80 +        } catch (ExecutionException success) {
81 +            assertTrue(success.getCause() instanceof CFException);
82 +        } catch (Throwable fail) { threadUnexpectedException(fail); }
83 +        try {
84 +            f.join();
85 +            shouldThrow();
86 +        } catch (CompletionException success) {
87 +            assertTrue(success.getCause() instanceof CFException);
88 +        }
89 +        try {
90 +            f.getNow(null);
91 +            shouldThrow();
92 +        } catch (CompletionException success) {
93 +            assertTrue(success.getCause() instanceof CFException);
94 +        }
95 +        try {
96 +            f.get();
97 +            shouldThrow();
98 +        } catch (ExecutionException success) {
99 +            assertTrue(success.getCause() instanceof CFException);
100 +        } catch (Throwable fail) { threadUnexpectedException(fail); }
101 +        assertTrue(f.isDone());
102 +        assertFalse(f.isCancelled());
103 +        assertTrue(f.toString().contains("[Completed exceptionally]"));
104 +    }
105 +
106 +    void checkCompletedWithWrappedCFException(CompletableFuture<?> f,
107 +                                              CFException ex) {
108 +        try {
109 +            f.get(LONG_DELAY_MS, MILLISECONDS);
110 +            shouldThrow();
111 +        } catch (ExecutionException success) {
112 +            assertSame(ex, success.getCause());
113 +        } catch (Throwable fail) { threadUnexpectedException(fail); }
114 +        try {
115 +            f.join();
116 +            shouldThrow();
117 +        } catch (CompletionException success) {
118 +            assertSame(ex, success.getCause());
119 +        }
120 +        try {
121 +            f.getNow(null);
122 +            shouldThrow();
123 +        } catch (CompletionException success) {
124 +            assertSame(ex, success.getCause());
125 +        }
126 +        try {
127 +            f.get();
128 +            shouldThrow();
129 +        } catch (ExecutionException success) {
130 +            assertSame(ex, success.getCause());
131 +        } catch (Throwable fail) { threadUnexpectedException(fail); }
132 +        assertTrue(f.isDone());
133 +        assertFalse(f.isCancelled());
134 +        assertTrue(f.toString().contains("[Completed exceptionally]"));
135 +    }
136 +
137 +    void checkCancelled(CompletableFuture<?> f) {
138 +        try {
139 +            f.get(LONG_DELAY_MS, MILLISECONDS);
140 +            shouldThrow();
141 +        } catch (CancellationException success) {
142 +        } catch (Throwable fail) { threadUnexpectedException(fail); }
143 +        try {
144 +            f.join();
145 +            shouldThrow();
146 +        } catch (CancellationException success) {}
147 +        try {
148 +            f.getNow(null);
149 +            shouldThrow();
150 +        } catch (CancellationException success) {}
151 +        try {
152 +            f.get();
153 +            shouldThrow();
154 +        } catch (CancellationException success) {
155 +        } catch (Throwable fail) { threadUnexpectedException(fail); }
156 +        assertTrue(f.isDone());
157 +        assertTrue(f.isCompletedExceptionally());
158 +        assertTrue(f.isCancelled());
159 +        assertTrue(f.toString().contains("[Completed exceptionally]"));
160 +    }
161 +
162 +    void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) {
163 +        try {
164 +            f.get(LONG_DELAY_MS, MILLISECONDS);
165 +            shouldThrow();
166 +        } catch (ExecutionException success) {
167 +            assertTrue(success.getCause() instanceof CancellationException);
168 +        } catch (Throwable fail) { threadUnexpectedException(fail); }
169 +        try {
170 +            f.join();
171 +            shouldThrow();
172 +        } catch (CompletionException success) {
173 +            assertTrue(success.getCause() instanceof CancellationException);
174 +        }
175 +        try {
176 +            f.getNow(null);
177 +            shouldThrow();
178 +        } catch (CompletionException success) {
179 +            assertTrue(success.getCause() instanceof CancellationException);
180 +        }
181 +        try {
182 +            f.get();
183 +            shouldThrow();
184 +        } catch (ExecutionException success) {
185 +            assertTrue(success.getCause() instanceof CancellationException);
186 +        } catch (Throwable fail) { threadUnexpectedException(fail); }
187 +        assertTrue(f.isDone());
188 +        assertFalse(f.isCancelled());
189 +        assertTrue(f.isCompletedExceptionally());
190 +        assertTrue(f.toString().contains("[Completed exceptionally]"));
191 +    }
192 +
193 +    /**
194 +     * A newly constructed CompletableFuture is incomplete, as indicated
195 +     * by methods isDone, isCancelled, and getNow
196 +     */
197 +    public void testConstructor() {
198 +        CompletableFuture<Integer> f = new CompletableFuture<>();
199 +        checkIncomplete(f);
200 +    }
201 +
202 +    /**
203 +     * complete completes normally, as indicated by methods isDone,
204 +     * isCancelled, join, get, and getNow
205 +     */
206 +    public void testComplete() {
207 +        CompletableFuture<Integer> f = new CompletableFuture<>();
208 +        checkIncomplete(f);
209 +        f.complete(one);
210 +        checkCompletedNormally(f, one);
211 +    }
212 +
213 +    /**
214 +     * completeExceptionally completes exceptionally, as indicated by
215 +     * methods isDone, isCancelled, join, get, and getNow
216 +     */
217 +    public void testCompleteExceptionally() {
218 +        CompletableFuture<Integer> f = new CompletableFuture<>();
219 +        checkIncomplete(f);
220 +        f.completeExceptionally(new CFException());
221 +        checkCompletedWithWrappedCFException(f);
222 +    }
223 +
224 +    /**
225 +     * cancel completes exceptionally and reports cancelled, as indicated by
226 +     * methods isDone, isCancelled, join, get, and getNow
227 +     */
228 +    public void testCancel() {
229 +        CompletableFuture<Integer> f = new CompletableFuture<>();
230 +        checkIncomplete(f);
231 +        assertTrue(f.cancel(true));
232 +        checkCancelled(f);
233 +    }
234 +
235 +    /**
236 +     * obtrudeValue forces completion with given value
237 +     */
238 +    public void testObtrudeValue() {
239 +        CompletableFuture<Integer> f = new CompletableFuture<>();
240 +        checkIncomplete(f);
241 +        f.complete(one);
242 +        checkCompletedNormally(f, one);
243 +        f.obtrudeValue(three);
244 +        checkCompletedNormally(f, three);
245 +        f.obtrudeValue(two);
246 +        checkCompletedNormally(f, two);
247 +        f = new CompletableFuture<>();
248 +        f.obtrudeValue(three);
249 +        checkCompletedNormally(f, three);
250 +        f = new CompletableFuture<>();
251 +        f.completeExceptionally(new CFException());
252 +        f.obtrudeValue(four);
253 +        checkCompletedNormally(f, four);
254 +    }
255 +
256 +    /**
257 +     * obtrudeException forces completion with given exception
258 +     */
259 +    public void testObtrudeException() {
260 +        CompletableFuture<Integer> f = new CompletableFuture<>();
261 +        checkIncomplete(f);
262 +        f.complete(one);
263 +        checkCompletedNormally(f, one);
264 +        f.obtrudeException(new CFException());
265 +        checkCompletedWithWrappedCFException(f);
266 +        f = new CompletableFuture<>();
267 +        f.obtrudeException(new CFException());
268 +        checkCompletedWithWrappedCFException(f);
269 +        f = new CompletableFuture<>();
270 +        f.completeExceptionally(new CFException());
271 +        f.obtrudeValue(four);
272 +        checkCompletedNormally(f, four);
273 +        f.obtrudeException(new CFException());
274 +        checkCompletedWithWrappedCFException(f);
275 +    }
276 +
277 +    /**
278 +     * getNumberOfDependents returns number of dependent tasks
279 +     */
280 +    public void testGetNumberOfDependents() {
281 +        CompletableFuture<Integer> f = new CompletableFuture<>();
282 +        assertEquals(f.getNumberOfDependents(), 0);
283 +        CompletableFuture g = f.thenRun(new Noop());
284 +        assertEquals(f.getNumberOfDependents(), 1);
285 +        assertEquals(g.getNumberOfDependents(), 0);
286 +        CompletableFuture h = f.thenRun(new Noop());
287 +        assertEquals(f.getNumberOfDependents(), 2);
288 +        f.complete(1);
289 +        checkCompletedNormally(g, null);
290 +        assertEquals(f.getNumberOfDependents(), 0);
291 +        assertEquals(g.getNumberOfDependents(), 0);
292 +    }
293 +
294 +    /**
295 +     * toString indicates current completion state
296 +     */
297      public void testToString() {
298          CompletableFuture<String> f;
299 <        assertTrue(new CompletableFuture<String>().toString()
34 <                   .contains("[Not completed]"));
299 >
300          f = new CompletableFuture<String>();
301 +        assertTrue(f.toString().contains("[Not completed]"));
302 +
303          f.complete("foo");
304          assertTrue(f.toString().contains("[Completed normally]"));
305 +
306          f = new CompletableFuture<String>();
307          f.completeExceptionally(new IndexOutOfBoundsException());
308          assertTrue(f.toString().contains("[Completed exceptionally]"));
309      }
310 +
311 +    /**
312 +     * completedFuture returns a completed CompletableFuture with given value
313 +     */
314 +    public void testCompletedFuture() {
315 +        CompletableFuture<String> f = CompletableFuture.completedFuture("test");
316 +        checkCompletedNormally(f, "test");
317 +    }
318 +
319 +    // Choose non-commutative actions for better coverage
320 +
321 +    // A non-commutative function that handles and produces null values as well.
322 +    static Integer subtract(Integer x, Integer y) {
323 +        return (x == null && y == null) ? null :
324 +            ((x == null) ? 42 : x.intValue())
325 +            - ((y == null) ? 99 : y.intValue());
326 +    }
327 +
328 +    // A function that handles and produces null values as well.
329 +    static Integer inc(Integer x) {
330 +        return (x == null) ? null : x + 1;
331 +    }
332 +
333 +    static final Supplier<Integer> supplyOne =
334 +        () -> Integer.valueOf(1);
335 +    static final Function<Integer, Integer> inc =
336 +        (Integer x) -> Integer.valueOf(x.intValue() + 1);
337 +    static final BiFunction<Integer, Integer, Integer> subtract =
338 +        (Integer x, Integer y) -> subtract(x, y);
339 +    static final class IncAction implements Consumer<Integer> {
340 +        int invocationCount = 0;
341 +        Integer value;
342 +        public boolean ran() { return invocationCount == 1; }
343 +        public void accept(Integer x) {
344 +            invocationCount++;
345 +            value = inc(x);
346 +        }
347 +    }
348 +    static final class IncFunction implements Function<Integer,Integer> {
349 +        int invocationCount = 0;
350 +        Integer value;
351 +        public boolean ran() { return invocationCount == 1; }
352 +        public Integer apply(Integer x) {
353 +            invocationCount++;
354 +            return value = inc(x);
355 +        }
356 +    }
357 +    static final class SubtractAction implements BiConsumer<Integer, Integer> {
358 +        int invocationCount = 0;
359 +        Integer value;
360 +        // Check this action was invoked exactly once when result is computed.
361 +        public boolean ran() { return invocationCount == 1; }
362 +        public void accept(Integer x, Integer y) {
363 +            invocationCount++;
364 +            value = subtract(x, y);
365 +        }
366 +    }
367 +    static final class SubtractFunction implements BiFunction<Integer, Integer, Integer> {
368 +        int invocationCount = 0;
369 +        Integer value;
370 +        // Check this action was invoked exactly once when result is computed.
371 +        public boolean ran() { return invocationCount == 1; }
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; }
380 +    }
381 +
382 +    static final class FailingSupplier implements Supplier<Integer> {
383 +        boolean ran;
384 +        public Integer get() { ran = true; throw new CFException(); }
385 +    }
386 +    static final class FailingConsumer implements Consumer<Integer> {
387 +        boolean ran;
388 +        public void accept(Integer x) { ran = true; throw new CFException(); }
389 +    }
390 +    static final class FailingBiConsumer implements BiConsumer<Integer, Integer> {
391 +        boolean ran;
392 +        public void accept(Integer x, Integer y) { ran = true; throw new CFException(); }
393 +    }
394 +    static final class FailingFunction implements Function<Integer, Integer> {
395 +        boolean ran;
396 +        public Integer apply(Integer x) { ran = true; throw new CFException(); }
397 +    }
398 +    static final class FailingBiFunction implements BiFunction<Integer, Integer, Integer> {
399 +        boolean ran;
400 +        public Integer apply(Integer x, Integer y) { ran = true; throw new CFException(); }
401 +    }
402 +    static final class FailingNoop implements Runnable {
403 +        boolean ran;
404 +        public void run() { ran = true; throw new CFException(); }
405 +    }
406 +
407 +    static final class CompletableFutureInc
408 +        implements Function<Integer, CompletableFuture<Integer>> {
409 +        boolean ran;
410 +        public CompletableFuture<Integer> apply(Integer x) {
411 +            ran = true;
412 +            CompletableFuture<Integer> f = new CompletableFuture<>();
413 +            f.complete(Integer.valueOf(x.intValue() + 1));
414 +            return f;
415 +        }
416 +    }
417 +
418 +    static final class FailingCompletableFutureFunction
419 +        implements Function<Integer, CompletableFuture<Integer>> {
420 +        boolean ran;
421 +        public CompletableFuture<Integer> apply(Integer x) {
422 +            ran = true; throw new CFException();
423 +        }
424 +    }
425 +
426 +    // Used for explicit executor tests
427 +    static final class ThreadExecutor implements Executor {
428 +        AtomicInteger count = new AtomicInteger(0);
429 +
430 +        public void execute(Runnable r) {
431 +            count.getAndIncrement();
432 +            new Thread(r).start();
433 +        }
434 +    }
435 +
436 +    static final class ExceptionToInteger implements Function<Throwable, Integer> {
437 +        public Integer apply(Throwable x) { return Integer.valueOf(3); }
438 +    }
439 +
440 +    static final class IntegerHandler implements BiFunction<Integer, Throwable, Integer> {
441 +        boolean ran;
442 +        public Integer apply(Integer x, Throwable t) {
443 +            ran = true;
444 +            return (t == null) ? two : three;
445 +        }
446 +    }
447 +
448 +    /**
449 +     * Permits the testing of parallel code for the 3 different
450 +     * execution modes without repeating all the testing code.
451 +     */
452 +    enum ExecutionMode {
453 +        DEFAULT {
454 +            public <T,U> CompletableFuture<Void> runAfterBoth
455 +                (CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) {
456 +                return f.runAfterBoth(g, a);
457 +            }
458 +            public <T,U> CompletableFuture<Void> thenAcceptBoth
459 +                (CompletableFuture<T> f,
460 +                 CompletionStage<? extends U> g,
461 +                 BiConsumer<? super T,? super U> a) {
462 +                return f.thenAcceptBoth(g, a);
463 +            }
464 +            public <T,U,V> CompletableFuture<V> thenCombine
465 +                (CompletableFuture<T> f,
466 +                 CompletionStage<? extends U> g,
467 +                 BiFunction<? super T,? super U,? extends V> a) {
468 +                return f.thenCombine(g, a);
469 +            }
470 +            public <T,U> CompletableFuture<U> applyToEither
471 +                (CompletableFuture<T> f,
472 +                 CompletionStage<? extends T> g,
473 +                 Function<? super T,U> a) {
474 +                return f.applyToEither(g, a);
475 +            }
476 +            public <T> CompletableFuture<Void> acceptEither
477 +                (CompletableFuture<T> f,
478 +                 CompletionStage<? extends T> g,
479 +                 Consumer<? super T> a) {
480 +                return f.acceptEither(g, a);
481 +            }
482 +            public <T> CompletableFuture<Void> runAfterEither
483 +                (CompletableFuture<T> f,
484 +                 CompletionStage<?> g,
485 +                 java.lang.Runnable a) {
486 +                return f.runAfterEither(g, a);
487 +            }
488 +            public <T,U> CompletableFuture<U> thenCompose
489 +                (CompletableFuture<T> f,
490 +                 Function<? super T,? extends CompletionStage<U>> a) {
491 +                return f.thenCompose(a);
492 +            }
493 +            public <T> CompletableFuture<T> whenComplete
494 +                (CompletableFuture<T> f,
495 +                 BiConsumer<? super T,? super Throwable> a) {
496 +                return f.whenComplete(a);
497 +            }
498 +        },
499 +
500 + //             /** Experimental way to do more testing */
501 + //         REVERSE_DEFAULT {
502 + //             public <T,U> CompletableFuture<Void> runAfterBoth
503 + //                 (CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) {
504 + //                 return g.runAfterBoth(f, a);
505 + //             }
506 + //             public <T,U> CompletableFuture<Void> thenAcceptBoth
507 + //                 (CompletableFuture<T> f,
508 + //                  CompletionStage<? extends U> g,
509 + //                  BiConsumer<? super T,? super U> a) {
510 + //                 return DEFAULT.thenAcceptBoth(f, g, a);
511 + //             }
512 + //         },
513 +
514 +        DEFAULT_ASYNC {
515 +            public <T,U> CompletableFuture<Void> runAfterBoth
516 +                (CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) {
517 +                return f.runAfterBothAsync(g, a);
518 +            }
519 +            public <T,U> CompletableFuture<Void> thenAcceptBoth
520 +                (CompletableFuture<T> f,
521 +                 CompletionStage<? extends U> g,
522 +                 BiConsumer<? super T,? super U> a) {
523 +                return f.thenAcceptBothAsync(g, a);
524 +            }
525 +            public <T,U,V> CompletableFuture<V> thenCombine
526 +                (CompletableFuture<T> f,
527 +                 CompletionStage<? extends U> g,
528 +                 BiFunction<? super T,? super U,? extends V> a) {
529 +                return f.thenCombineAsync(g, a);
530 +            }
531 +            public <T,U> CompletableFuture<U> applyToEither
532 +                (CompletableFuture<T> f,
533 +                 CompletionStage<? extends T> g,
534 +                 Function<? super T,U> a) {
535 +                return f.applyToEitherAsync(g, a);
536 +            }
537 +            public <T> CompletableFuture<Void> acceptEither
538 +                (CompletableFuture<T> f,
539 +                 CompletionStage<? extends T> g,
540 +                 Consumer<? super T> a) {
541 +                return f.acceptEitherAsync(g, a);
542 +            }
543 +            public <T> CompletableFuture<Void> runAfterEither
544 +                (CompletableFuture<T> f,
545 +                 CompletionStage<?> g,
546 +                 java.lang.Runnable a) {
547 +                return f.runAfterEitherAsync(g, a);
548 +            }
549 +            public <T,U> CompletableFuture<U> thenCompose
550 +                (CompletableFuture<T> f,
551 +                 Function<? super T,? extends CompletionStage<U>> a) {
552 +                return f.thenComposeAsync(a);
553 +            }
554 +            public <T> CompletableFuture<T> whenComplete
555 +                (CompletableFuture<T> f,
556 +                 BiConsumer<? super T,? super Throwable> a) {
557 +                return f.whenCompleteAsync(a);
558 +            }
559 +        },
560 +
561 + //         REVERSE_DEFAULT_ASYNC {
562 + //             public <T,U> CompletableFuture<Void> runAfterBoth
563 + //                 (CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) {
564 + //                 return f.runAfterBothAsync(g, a);
565 + //             }
566 + //             public <T,U> CompletableFuture<Void> thenAcceptBoth
567 + //                 (CompletableFuture<T> f,
568 + //                  CompletionStage<? extends U> g,
569 + //                  BiConsumer<? super T,? super U> a) {
570 + //                 return DEFAULT_ASYNC.thenAcceptBoth(f, g, a);
571 + //             }
572 + //         },
573 +
574 +        EXECUTOR {
575 +            public <T,U> CompletableFuture<Void> runAfterBoth
576 +                (CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) {
577 +                return f.runAfterBothAsync(g, a, new ThreadExecutor());
578 +            }
579 +            public <T,U> CompletableFuture<Void> thenAcceptBoth
580 +                (CompletableFuture<T> f,
581 +                 CompletionStage<? extends U> g,
582 +                 BiConsumer<? super T,? super U> a) {
583 +                return f.thenAcceptBothAsync(g, a, new ThreadExecutor());
584 +            }
585 +            public <T,U,V> CompletableFuture<V> thenCombine
586 +                (CompletableFuture<T> f,
587 +                 CompletionStage<? extends U> g,
588 +                 BiFunction<? super T,? super U,? extends V> a) {
589 +                return f.thenCombineAsync(g, a, new ThreadExecutor());
590 +            }
591 +            public <T,U> CompletableFuture<U> applyToEither
592 +                (CompletableFuture<T> f,
593 +                 CompletionStage<? extends T> g,
594 +                 Function<? super T,U> a) {
595 +                return f.applyToEitherAsync(g, a, new ThreadExecutor());
596 +            }
597 +            public <T> CompletableFuture<Void> acceptEither
598 +                (CompletableFuture<T> f,
599 +                 CompletionStage<? extends T> g,
600 +                 Consumer<? super T> a) {
601 +                return f.acceptEitherAsync(g, a, new ThreadExecutor());
602 +            }
603 +            public <T> CompletableFuture<Void> runAfterEither
604 +                (CompletableFuture<T> f,
605 +                 CompletionStage<?> g,
606 +                 java.lang.Runnable a) {
607 +                return f.runAfterEitherAsync(g, a, new ThreadExecutor());
608 +            }
609 +            public <T,U> CompletableFuture<U> thenCompose
610 +                (CompletableFuture<T> f,
611 +                 Function<? super T,? extends CompletionStage<U>> a) {
612 +                return f.thenComposeAsync(a, new ThreadExecutor());
613 +            }
614 +            public <T> CompletableFuture<T> whenComplete
615 +                (CompletableFuture<T> f,
616 +                 BiConsumer<? super T,? super Throwable> a) {
617 +                return f.whenCompleteAsync(a, new ThreadExecutor());
618 +            }
619 +        };
620 +
621 +        public abstract <T,U> CompletableFuture<Void> runAfterBoth
622 +            (CompletableFuture<T> f, CompletableFuture<U> g, Runnable a);
623 +        public abstract <T,U> CompletableFuture<Void> thenAcceptBoth
624 +            (CompletableFuture<T> f,
625 +             CompletionStage<? extends U> g,
626 +             BiConsumer<? super T,? super U> a);
627 +        public abstract <T,U,V> CompletableFuture<V> thenCombine
628 +            (CompletableFuture<T> f,
629 +             CompletionStage<? extends U> g,
630 +             BiFunction<? super T,? super U,? extends V> a);
631 +        public abstract <T,U> CompletableFuture<U> applyToEither
632 +            (CompletableFuture<T> f,
633 +             CompletionStage<? extends T> g,
634 +             Function<? super T,U> a);
635 +        public abstract <T> CompletableFuture<Void> acceptEither
636 +            (CompletableFuture<T> f,
637 +             CompletionStage<? extends T> g,
638 +             Consumer<? super T> a);
639 +        public abstract <T> CompletableFuture<Void> runAfterEither
640 +            (CompletableFuture<T> f,
641 +             CompletionStage<?> g,
642 +             java.lang.Runnable a);
643 +        public abstract <T,U> CompletableFuture<U> thenCompose
644 +            (CompletableFuture<T> f,
645 +             Function<? super T,? extends CompletionStage<U>> a);
646 +        public abstract <T> CompletableFuture<T> whenComplete
647 +            (CompletableFuture<T> f,
648 +             BiConsumer<? super T,? super Throwable> a);
649 +
650 +
651 +    }
652 +
653 +    /**
654 +     * exceptionally action completes with function value on source
655 +     * exception; otherwise with source value
656 +     */
657 +    public void testExceptionally() {
658 +        CompletableFuture<Integer> f = new CompletableFuture<>();
659 +        ExceptionToInteger r = new ExceptionToInteger();
660 +        CompletableFuture<Integer> g = f.exceptionally(r);
661 +        f.completeExceptionally(new CFException());
662 +        checkCompletedNormally(g, three);
663 +
664 +        f = new CompletableFuture<>();
665 +        r = new ExceptionToInteger();
666 +        g = f.exceptionally(r);
667 +        f.complete(one);
668 +        checkCompletedNormally(g, one);
669 +    }
670 +
671 +    /**
672 +     * handle action completes normally with function value on either
673 +     * normal or exceptional completion of source
674 +     */
675 +    public void testHandle() {
676 +        CompletableFuture<Integer> f, g;
677 +        IntegerHandler r;
678 +
679 +        f = new CompletableFuture<>();
680 +        f.completeExceptionally(new CFException());
681 +        g = f.handle(r = new IntegerHandler());
682 +        assertTrue(r.ran);
683 +        checkCompletedNormally(g, three);
684 +
685 +        f = new CompletableFuture<>();
686 +        g = f.handle(r = new IntegerHandler());
687 +        assertFalse(r.ran);
688 +        f.completeExceptionally(new CFException());
689 +        checkCompletedNormally(g, three);
690 +        assertTrue(r.ran);
691 +
692 +        f = new CompletableFuture<>();
693 +        f.complete(one);
694 +        g = f.handle(r = new IntegerHandler());
695 +        assertTrue(r.ran);
696 +        checkCompletedNormally(g, two);
697 +
698 +        f = new CompletableFuture<>();
699 +        g = f.handle(r = new IntegerHandler());
700 +        assertFalse(r.ran);
701 +        f.complete(one);
702 +        assertTrue(r.ran);
703 +        checkCompletedNormally(g, two);
704 +    }
705 +
706 +    /**
707 +     * runAsync completes after running Runnable
708 +     */
709 +    public void testRunAsync() {
710 +        Noop r = new Noop();
711 +        CompletableFuture<Void> f = CompletableFuture.runAsync(r);
712 +        assertNull(f.join());
713 +        assertTrue(r.ran);
714 +        checkCompletedNormally(f, null);
715 +    }
716 +
717 +    /**
718 +     * runAsync with executor completes after running Runnable
719 +     */
720 +    public void testRunAsync2() {
721 +        Noop r = new Noop();
722 +        ThreadExecutor exec = new ThreadExecutor();
723 +        CompletableFuture<Void> f = CompletableFuture.runAsync(r, exec);
724 +        assertNull(f.join());
725 +        assertTrue(r.ran);
726 +        checkCompletedNormally(f, null);
727 +        assertEquals(1, exec.count.get());
728 +    }
729 +
730 +    /**
731 +     * failing runAsync completes exceptionally after running Runnable
732 +     */
733 +    public void testRunAsync3() {
734 +        FailingNoop r = new FailingNoop();
735 +        CompletableFuture<Void> f = CompletableFuture.runAsync(r);
736 +        checkCompletedWithWrappedCFException(f);
737 +        assertTrue(r.ran);
738 +    }
739 +
740 +    /**
741 +     * supplyAsync completes with result of supplier
742 +     */
743 +    public void testSupplyAsync() {
744 +        CompletableFuture<Integer> f;
745 +        f = CompletableFuture.supplyAsync(supplyOne);
746 +        assertEquals(f.join(), one);
747 +        checkCompletedNormally(f, one);
748 +    }
749 +
750 +    /**
751 +     * supplyAsync with executor completes with result of supplier
752 +     */
753 +    public void testSupplyAsync2() {
754 +        CompletableFuture<Integer> f;
755 +        f = CompletableFuture.supplyAsync(supplyOne, new ThreadExecutor());
756 +        assertEquals(f.join(), one);
757 +        checkCompletedNormally(f, one);
758 +    }
759 +
760 +    /**
761 +     * Failing supplyAsync completes exceptionally
762 +     */
763 +    public void testSupplyAsync3() {
764 +        FailingSupplier r = new FailingSupplier();
765 +        CompletableFuture<Integer> f = CompletableFuture.supplyAsync(r);
766 +        checkCompletedWithWrappedCFException(f);
767 +        assertTrue(r.ran);
768 +    }
769 +
770 +    // seq completion methods
771 +
772 +    /**
773 +     * thenRun result completes normally after normal completion of source
774 +     */
775 +    public void testThenRun() {
776 +        CompletableFuture<Integer> f;
777 +        CompletableFuture<Void> g;
778 +        Noop r;
779 +
780 +        f = new CompletableFuture<>();
781 +        g = f.thenRun(r = new Noop());
782 +        f.complete(null);
783 +        checkCompletedNormally(g, null);
784 +        assertTrue(r.ran);
785 +
786 +        f = new CompletableFuture<>();
787 +        f.complete(null);
788 +        g = f.thenRun(r = new Noop());
789 +        checkCompletedNormally(g, null);
790 +        assertTrue(r.ran);
791 +    }
792 +
793 +    /**
794 +     * thenRun result completes exceptionally after exceptional
795 +     * completion of source
796 +     */
797 +    public void testThenRun2() {
798 +        CompletableFuture<Integer> f;
799 +        CompletableFuture<Void> g;
800 +        Noop r;
801 +
802 +        f = new CompletableFuture<>();
803 +        g = f.thenRun(r = new Noop());
804 +        f.completeExceptionally(new CFException());
805 +        checkCompletedWithWrappedCFException(g);
806 +        assertFalse(r.ran);
807 +
808 +        f = new CompletableFuture<>();
809 +        f.completeExceptionally(new CFException());
810 +        g = f.thenRun(r = new Noop());
811 +        checkCompletedWithWrappedCFException(g);
812 +        assertFalse(r.ran);
813 +    }
814 +
815 +    /**
816 +     * thenRun result completes exceptionally if action does
817 +     */
818 +    public void testThenRun3() {
819 +        CompletableFuture<Integer> f;
820 +        CompletableFuture<Void> g;
821 +        FailingNoop r;
822 +
823 +        f = new CompletableFuture<>();
824 +        g = f.thenRun(r = new FailingNoop());
825 +        f.complete(null);
826 +        checkCompletedWithWrappedCFException(g);
827 +
828 +        f = new CompletableFuture<>();
829 +        f.complete(null);
830 +        g = f.thenRun(r = new FailingNoop());
831 +        checkCompletedWithWrappedCFException(g);
832 +    }
833 +
834 +    /**
835 +     * thenRun result completes exceptionally if source cancelled
836 +     */
837 +    public void testThenRun4() {
838 +        CompletableFuture<Integer> f;
839 +        CompletableFuture<Void> g;
840 +        Noop r;
841 +
842 +        f = new CompletableFuture<>();
843 +        g = f.thenRun(r = new Noop());
844 +        assertTrue(f.cancel(true));
845 +        checkCompletedWithWrappedCancellationException(g);
846 +
847 +        f = new CompletableFuture<>();
848 +        assertTrue(f.cancel(true));
849 +        g = f.thenRun(r = new Noop());
850 +        checkCompletedWithWrappedCancellationException(g);
851 +    }
852 +
853 +    /**
854 +     * thenApply result completes normally after normal completion of source
855 +     */
856 +    public void testThenApply() {
857 +        CompletableFuture<Integer> f = new CompletableFuture<>();
858 +        CompletableFuture<Integer> g = f.thenApply(inc);
859 +        f.complete(one);
860 +        checkCompletedNormally(g, two);
861 +    }
862 +
863 +    /**
864 +     * thenApply result completes exceptionally after exceptional
865 +     * completion of source
866 +     */
867 +    public void testThenApply2() {
868 +        CompletableFuture<Integer> f = new CompletableFuture<>();
869 +        CompletableFuture<Integer> g = f.thenApply(inc);
870 +        f.completeExceptionally(new CFException());
871 +        checkCompletedWithWrappedCFException(g);
872 +    }
873 +
874 +    /**
875 +     * thenApply result completes exceptionally if action does
876 +     */
877 +    public void testThenApply3() {
878 +        CompletableFuture<Integer> f = new CompletableFuture<>();
879 +        CompletableFuture<Integer> g = f.thenApply(new FailingFunction());
880 +        f.complete(one);
881 +        checkCompletedWithWrappedCFException(g);
882 +    }
883 +
884 +    /**
885 +     * thenApply result completes exceptionally if source cancelled
886 +     */
887 +    public void testThenApply4() {
888 +        CompletableFuture<Integer> f = new CompletableFuture<>();
889 +        CompletableFuture<Integer> g = f.thenApply(inc);
890 +        assertTrue(f.cancel(true));
891 +        checkCompletedWithWrappedCancellationException(g);
892 +    }
893 +
894 +    /**
895 +     * thenAccept result completes normally after normal completion of source
896 +     */
897 +    public void testThenAccept() {
898 +        CompletableFuture<Integer> f = new CompletableFuture<>();
899 +        IncAction r = new IncAction();
900 +        CompletableFuture<Void> g = f.thenAccept(r);
901 +        f.complete(one);
902 +        checkCompletedNormally(g, null);
903 +        assertEquals(r.value, (Integer) 2);
904 +    }
905 +
906 +    /**
907 +     * thenAccept result completes exceptionally after exceptional
908 +     * completion of source
909 +     */
910 +    public void testThenAccept2() {
911 +        CompletableFuture<Integer> f = new CompletableFuture<>();
912 +        IncAction r = new IncAction();
913 +        CompletableFuture<Void> g = f.thenAccept(r);
914 +        f.completeExceptionally(new CFException());
915 +        checkCompletedWithWrappedCFException(g);
916 +    }
917 +
918 +    /**
919 +     * thenAccept result completes exceptionally if action does
920 +     */
921 +    public void testThenAccept3() {
922 +        CompletableFuture<Integer> f = new CompletableFuture<>();
923 +        FailingConsumer r = new FailingConsumer();
924 +        CompletableFuture<Void> g = f.thenAccept(r);
925 +        f.complete(one);
926 +        checkCompletedWithWrappedCFException(g);
927 +        assertTrue(r.ran);
928 +    }
929 +
930 +    /**
931 +     * thenAccept result completes exceptionally if source cancelled
932 +     */
933 +    public void testThenAccept4() {
934 +        CompletableFuture<Integer> f = new CompletableFuture<>();
935 +        IncAction r = new IncAction();
936 +        CompletableFuture<Void> g = f.thenAccept(r);
937 +        assertTrue(f.cancel(true));
938 +        checkCompletedWithWrappedCancellationException(g);
939 +    }
940 +
941 +    /**
942 +     * thenCombine result completes normally after normal completion
943 +     * of sources
944 +     */
945 +    public void testThenCombine_normalCompletion1() {
946 +        for (ExecutionMode m : ExecutionMode.values())
947 +        for (Integer v1 : new Integer[] { 1, null })
948 +        for (Integer v2 : new Integer[] { 2, null }) {
949 +
950 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
951 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
952 +        final SubtractFunction r = new SubtractFunction();
953 +        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
954 +
955 +        f.complete(v1);
956 +        checkIncomplete(h);
957 +        assertFalse(r.ran());
958 +        g.complete(v2);
959 +
960 +        checkCompletedNormally(h, subtract(v1, v2));
961 +        checkCompletedNormally(f, v1);
962 +        checkCompletedNormally(g, v2);
963 +        }
964 +    }
965 +
966 +    public void testThenCombine_normalCompletion2() {
967 +        for (ExecutionMode m : ExecutionMode.values())
968 +        for (Integer v1 : new Integer[] { 1, null })
969 +        for (Integer v2 : new Integer[] { 2, null }) {
970 +
971 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
972 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
973 +        final SubtractFunction r = new SubtractFunction();
974 +        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
975 +
976 +        g.complete(v2);
977 +        checkIncomplete(h);
978 +        assertFalse(r.ran());
979 +        f.complete(v1);
980 +
981 +        checkCompletedNormally(h, subtract(v1, v2));
982 +        checkCompletedNormally(f, v1);
983 +        checkCompletedNormally(g, v2);
984 +        }
985 +    }
986 +
987 +    public void testThenCombine_normalCompletion3() {
988 +        for (ExecutionMode m : ExecutionMode.values())
989 +        for (Integer v1 : new Integer[] { 1, null })
990 +        for (Integer v2 : new Integer[] { 2, null }) {
991 +
992 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
993 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
994 +        final SubtractFunction r = new SubtractFunction();
995 +
996 +        g.complete(v2);
997 +        f.complete(v1);
998 +        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
999 +
1000 +        checkCompletedNormally(h, subtract(v1, v2));
1001 +        checkCompletedNormally(f, v1);
1002 +        checkCompletedNormally(g, v2);
1003 +        }
1004 +    }
1005 +
1006 +    public void testThenCombine_normalCompletion4() {
1007 +        for (ExecutionMode m : ExecutionMode.values())
1008 +        for (Integer v1 : new Integer[] { 1, null })
1009 +        for (Integer v2 : new Integer[] { 2, null }) {
1010 +
1011 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1012 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1013 +        final SubtractFunction r = new SubtractFunction();
1014 +
1015 +        f.complete(v1);
1016 +        g.complete(v2);
1017 +        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1018 +
1019 +        checkCompletedNormally(h, subtract(v1, v2));
1020 +        checkCompletedNormally(f, v1);
1021 +        checkCompletedNormally(g, v2);
1022 +        }
1023 +    }
1024 +
1025 +    /**
1026 +     * thenCombine result completes exceptionally after exceptional
1027 +     * completion of either source
1028 +     */
1029 +    public void testThenCombine_exceptionalCompletion1() {
1030 +        for (ExecutionMode m : ExecutionMode.values())
1031 +        for (Integer v1 : new Integer[] { 1, null }) {
1032 +
1033 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1034 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1035 +        final SubtractFunction r = new SubtractFunction();
1036 +        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1037 +        final CFException ex = new CFException();
1038 +
1039 +        f.completeExceptionally(ex);
1040 +        checkIncomplete(h);
1041 +        g.complete(v1);
1042 +
1043 +        checkCompletedWithWrappedCFException(h, ex);
1044 +        checkCompletedWithWrappedCFException(f, ex);
1045 +        assertFalse(r.ran());
1046 +        checkCompletedNormally(g, v1);
1047 +        }
1048 +    }
1049 +
1050 +    public void testThenCombine_exceptionalCompletion2() {
1051 +        for (ExecutionMode m : ExecutionMode.values())
1052 +        for (Integer v1 : new Integer[] { 1, null }) {
1053 +
1054 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1055 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1056 +        final SubtractFunction r = new SubtractFunction();
1057 +        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1058 +        final CFException ex = new CFException();
1059 +
1060 +        g.completeExceptionally(ex);
1061 +        checkIncomplete(h);
1062 +        f.complete(v1);
1063 +
1064 +        checkCompletedWithWrappedCFException(h, ex);
1065 +        checkCompletedWithWrappedCFException(g, ex);
1066 +        assertFalse(r.ran());
1067 +        checkCompletedNormally(f, v1);
1068 +        }
1069 +    }
1070 +
1071 +    public void testThenCombine_exceptionalCompletion3() {
1072 +        for (ExecutionMode m : ExecutionMode.values())
1073 +        for (Integer v1 : new Integer[] { 1, null }) {
1074 +
1075 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1076 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1077 +        final SubtractFunction r = new SubtractFunction();
1078 +        final CFException ex = new CFException();
1079 +
1080 +        g.completeExceptionally(ex);
1081 +        f.complete(v1);
1082 +        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1083 +
1084 +        checkCompletedWithWrappedCFException(h, ex);
1085 +        checkCompletedWithWrappedCFException(g, ex);
1086 +        assertFalse(r.ran());
1087 +        checkCompletedNormally(f, v1);
1088 +        }
1089 +    }
1090 +
1091 +    public void testThenCombine_exceptionalCompletion4() {
1092 +        for (ExecutionMode m : ExecutionMode.values())
1093 +        for (Integer v1 : new Integer[] { 1, null }) {
1094 +
1095 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1096 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1097 +        final SubtractFunction r = new SubtractFunction();
1098 +        final CFException ex = new CFException();
1099 +
1100 +        f.completeExceptionally(ex);
1101 +        g.complete(v1);
1102 +        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1103 +
1104 +        checkCompletedWithWrappedCFException(h, ex);
1105 +        checkCompletedWithWrappedCFException(f, ex);
1106 +        assertFalse(r.ran());
1107 +        checkCompletedNormally(g, v1);
1108 +        }
1109 +    }
1110 +
1111 +    /**
1112 +     * thenCombine result completes exceptionally if action does
1113 +     */
1114 +    public void testThenCombine_actionFailed1() {
1115 +        for (ExecutionMode m : ExecutionMode.values())
1116 +        for (Integer v1 : new Integer[] { 1, null })
1117 +        for (Integer v2 : new Integer[] { 2, null }) {
1118 +
1119 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1120 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1121 +        final FailingBiFunction r = new FailingBiFunction();
1122 +        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1123 +
1124 +        f.complete(v1);
1125 +        checkIncomplete(h);
1126 +        g.complete(v2);
1127 +
1128 +        checkCompletedWithWrappedCFException(h);
1129 +        checkCompletedNormally(f, v1);
1130 +        checkCompletedNormally(g, v2);
1131 +        }
1132 +    }
1133 +
1134 +    public void testThenCombine_actionFailed2() {
1135 +        for (ExecutionMode m : ExecutionMode.values())
1136 +        for (Integer v1 : new Integer[] { 1, null })
1137 +        for (Integer v2 : new Integer[] { 2, null }) {
1138 +
1139 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1140 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1141 +        final FailingBiFunction r = new FailingBiFunction();
1142 +        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1143 +
1144 +        g.complete(v2);
1145 +        checkIncomplete(h);
1146 +        f.complete(v1);
1147 +
1148 +        checkCompletedWithWrappedCFException(h);
1149 +        checkCompletedNormally(f, v1);
1150 +        checkCompletedNormally(g, v2);
1151 +        }
1152 +    }
1153 +
1154 +    /**
1155 +     * thenCombine result completes exceptionally if either source cancelled
1156 +     */
1157 +    public void testThenCombine_sourceCancelled1() {
1158 +        for (ExecutionMode m : ExecutionMode.values())
1159 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1160 +        for (Integer v1 : new Integer[] { 1, null }) {
1161 +
1162 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1163 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1164 +        final SubtractFunction r = new SubtractFunction();
1165 +        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1166 +
1167 +        assertTrue(f.cancel(mayInterruptIfRunning));
1168 +        checkIncomplete(h);
1169 +        g.complete(v1);
1170 +
1171 +        checkCompletedWithWrappedCancellationException(h);
1172 +        checkCancelled(f);
1173 +        assertFalse(r.ran());
1174 +        checkCompletedNormally(g, v1);
1175 +        }
1176 +    }
1177 +
1178 +    public void testThenCombine_sourceCancelled2() {
1179 +        for (ExecutionMode m : ExecutionMode.values())
1180 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1181 +        for (Integer v1 : new Integer[] { 1, null }) {
1182 +
1183 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1184 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1185 +        final SubtractFunction r = new SubtractFunction();
1186 +        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1187 +
1188 +        assertTrue(g.cancel(mayInterruptIfRunning));
1189 +        checkIncomplete(h);
1190 +        f.complete(v1);
1191 +
1192 +        checkCompletedWithWrappedCancellationException(h);
1193 +        checkCancelled(g);
1194 +        assertFalse(r.ran());
1195 +        checkCompletedNormally(f, v1);
1196 +        }
1197 +    }
1198 +
1199 +    public void testThenCombine_sourceCancelled3() {
1200 +        for (ExecutionMode m : ExecutionMode.values())
1201 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1202 +        for (Integer v1 : new Integer[] { 1, null }) {
1203 +
1204 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1205 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1206 +        final SubtractFunction r = new SubtractFunction();
1207 +
1208 +        assertTrue(g.cancel(mayInterruptIfRunning));
1209 +        f.complete(v1);
1210 +        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1211 +
1212 +        checkCompletedWithWrappedCancellationException(h);
1213 +        checkCancelled(g);
1214 +        assertFalse(r.ran());
1215 +        checkCompletedNormally(f, v1);
1216 +        }
1217 +    }
1218 +
1219 +    public void testThenCombine_sourceCancelled4() {
1220 +        for (ExecutionMode m : ExecutionMode.values())
1221 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1222 +        for (Integer v1 : new Integer[] { 1, null }) {
1223 +
1224 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1225 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1226 +        final SubtractFunction r = new SubtractFunction();
1227 +
1228 +        assertTrue(f.cancel(mayInterruptIfRunning));
1229 +        g.complete(v1);
1230 +        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1231 +
1232 +        checkCompletedWithWrappedCancellationException(h);
1233 +        checkCancelled(f);
1234 +        assertFalse(r.ran());
1235 +        checkCompletedNormally(g, v1);
1236 +        }
1237 +    }
1238 +
1239 +    /**
1240 +     * thenAcceptBoth result completes normally after normal
1241 +     * completion of sources
1242 +     */
1243 +    public void testThenAcceptBoth_normalCompletion1() {
1244 +        for (ExecutionMode m : ExecutionMode.values())
1245 +        for (Integer v1 : new Integer[] { 1, null })
1246 +        for (Integer v2 : new Integer[] { 2, null }) {
1247 +
1248 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1249 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1250 +        final SubtractAction r = new SubtractAction();
1251 +        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1252 +
1253 +        f.complete(v1);
1254 +        checkIncomplete(h);
1255 +        assertFalse(r.ran());
1256 +        g.complete(v2);
1257 +
1258 +        checkCompletedNormally(h, null);
1259 +        assertEquals(r.value, subtract(v1, v2));
1260 +        checkCompletedNormally(f, v1);
1261 +        checkCompletedNormally(g, v2);
1262 +        }
1263 +    }
1264 +
1265 +    public void testThenAcceptBoth_normalCompletion2() {
1266 +        for (ExecutionMode m : ExecutionMode.values())
1267 +        for (Integer v1 : new Integer[] { 1, null })
1268 +        for (Integer v2 : new Integer[] { 2, null }) {
1269 +
1270 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1271 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1272 +        final SubtractAction r = new SubtractAction();
1273 +        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1274 +
1275 +        g.complete(v2);
1276 +        checkIncomplete(h);
1277 +        assertFalse(r.ran());
1278 +        f.complete(v1);
1279 +
1280 +        checkCompletedNormally(h, null);
1281 +        assertEquals(r.value, subtract(v1, v2));
1282 +        checkCompletedNormally(f, v1);
1283 +        checkCompletedNormally(g, v2);
1284 +        }
1285 +    }
1286 +
1287 +    public void testThenAcceptBoth_normalCompletion3() {
1288 +        for (ExecutionMode m : ExecutionMode.values())
1289 +        for (Integer v1 : new Integer[] { 1, null })
1290 +        for (Integer v2 : new Integer[] { 2, null }) {
1291 +
1292 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1293 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1294 +        final SubtractAction r = new SubtractAction();
1295 +
1296 +        g.complete(v2);
1297 +        f.complete(v1);
1298 +        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1299 +
1300 +        checkCompletedNormally(h, null);
1301 +        assertEquals(r.value, subtract(v1, v2));
1302 +        checkCompletedNormally(f, v1);
1303 +        checkCompletedNormally(g, v2);
1304 +        }
1305 +    }
1306 +
1307 +    public void testThenAcceptBoth_normalCompletion4() {
1308 +        for (ExecutionMode m : ExecutionMode.values())
1309 +        for (Integer v1 : new Integer[] { 1, null })
1310 +        for (Integer v2 : new Integer[] { 2, null }) {
1311 +
1312 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1313 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1314 +        final SubtractAction r = new SubtractAction();
1315 +
1316 +        f.complete(v1);
1317 +        g.complete(v2);
1318 +        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1319 +
1320 +        checkCompletedNormally(h, null);
1321 +        assertEquals(r.value, subtract(v1, v2));
1322 +        checkCompletedNormally(f, v1);
1323 +        checkCompletedNormally(g, v2);
1324 +        }
1325 +    }
1326 +
1327 +    /**
1328 +     * thenAcceptBoth result completes exceptionally after exceptional
1329 +     * completion of either source
1330 +     */
1331 +    public void testThenAcceptBoth_exceptionalCompletion1() {
1332 +        for (ExecutionMode m : ExecutionMode.values())
1333 +        for (Integer v1 : new Integer[] { 1, null }) {
1334 +
1335 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1336 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1337 +        final SubtractAction r = new SubtractAction();
1338 +        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1339 +        final CFException ex = new CFException();
1340 +
1341 +        f.completeExceptionally(ex);
1342 +        checkIncomplete(h);
1343 +        g.complete(v1);
1344 +
1345 +        checkCompletedWithWrappedCFException(h, ex);
1346 +        checkCompletedWithWrappedCFException(f, ex);
1347 +        assertFalse(r.ran());
1348 +        checkCompletedNormally(g, v1);
1349 +        }
1350 +    }
1351 +
1352 +    public void testThenAcceptBoth_exceptionalCompletion2() {
1353 +        for (ExecutionMode m : ExecutionMode.values())
1354 +        for (Integer v1 : new Integer[] { 1, null }) {
1355 +
1356 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1357 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1358 +        final SubtractAction r = new SubtractAction();
1359 +        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1360 +        final CFException ex = new CFException();
1361 +
1362 +        g.completeExceptionally(ex);
1363 +        checkIncomplete(h);
1364 +        f.complete(v1);
1365 +
1366 +        checkCompletedWithWrappedCFException(h, ex);
1367 +        checkCompletedWithWrappedCFException(g, ex);
1368 +        assertFalse(r.ran());
1369 +        checkCompletedNormally(f, v1);
1370 +        }
1371 +    }
1372 +
1373 +    public void testThenAcceptBoth_exceptionalCompletion3() {
1374 +        for (ExecutionMode m : ExecutionMode.values())
1375 +        for (Integer v1 : new Integer[] { 1, null }) {
1376 +
1377 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1378 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1379 +        final SubtractAction r = new SubtractAction();
1380 +        final CFException ex = new CFException();
1381 +
1382 +        g.completeExceptionally(ex);
1383 +        f.complete(v1);
1384 +        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1385 +
1386 +        checkCompletedWithWrappedCFException(h, ex);
1387 +        checkCompletedWithWrappedCFException(g, ex);
1388 +        assertFalse(r.ran());
1389 +        checkCompletedNormally(f, v1);
1390 +        }
1391 +    }
1392 +
1393 +    public void testThenAcceptBoth_exceptionalCompletion4() {
1394 +        for (ExecutionMode m : ExecutionMode.values())
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 SubtractAction r = new SubtractAction();
1400 +        final CFException ex = new CFException();
1401 +
1402 +        f.completeExceptionally(ex);
1403 +        g.complete(v1);
1404 +        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1405 +
1406 +        checkCompletedWithWrappedCFException(h, ex);
1407 +        checkCompletedWithWrappedCFException(f, ex);
1408 +        assertFalse(r.ran());
1409 +        checkCompletedNormally(g, v1);
1410 +        }
1411 +    }
1412 +
1413 +    /**
1414 +     * thenAcceptBoth result completes exceptionally if action does
1415 +     */
1416 +    public void testThenAcceptBoth_actionFailed1() {
1417 +        for (ExecutionMode m : ExecutionMode.values())
1418 +        for (Integer v1 : new Integer[] { 1, null })
1419 +        for (Integer v2 : new Integer[] { 2, null }) {
1420 +
1421 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1422 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1423 +        final FailingBiConsumer r = new FailingBiConsumer();
1424 +        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1425 +
1426 +        f.complete(v1);
1427 +        checkIncomplete(h);
1428 +        g.complete(v2);
1429 +
1430 +        checkCompletedWithWrappedCFException(h);
1431 +        checkCompletedNormally(f, v1);
1432 +        checkCompletedNormally(g, v2);
1433 +        }
1434 +    }
1435 +
1436 +    public void testThenAcceptBoth_actionFailed2() {
1437 +        for (ExecutionMode m : ExecutionMode.values())
1438 +        for (Integer v1 : new Integer[] { 1, null })
1439 +        for (Integer v2 : new Integer[] { 2, null }) {
1440 +
1441 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1442 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1443 +        final FailingBiConsumer r = new FailingBiConsumer();
1444 +        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1445 +
1446 +        g.complete(v2);
1447 +        checkIncomplete(h);
1448 +        f.complete(v1);
1449 +
1450 +        checkCompletedWithWrappedCFException(h);
1451 +        checkCompletedNormally(f, v1);
1452 +        checkCompletedNormally(g, v2);
1453 +        }
1454 +    }
1455 +
1456 +    /**
1457 +     * thenAcceptBoth result completes exceptionally if either source cancelled
1458 +     */
1459 +    public void testThenAcceptBoth_sourceCancelled1() {
1460 +        for (ExecutionMode m : ExecutionMode.values())
1461 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1462 +        for (Integer v1 : new Integer[] { 1, null }) {
1463 +
1464 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1465 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1466 +        final SubtractAction r = new SubtractAction();
1467 +        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1468 +
1469 +        assertTrue(f.cancel(mayInterruptIfRunning));
1470 +        checkIncomplete(h);
1471 +        g.complete(v1);
1472 +
1473 +        checkCompletedWithWrappedCancellationException(h);
1474 +        checkCancelled(f);
1475 +        assertFalse(r.ran());
1476 +        checkCompletedNormally(g, v1);
1477 +        }
1478 +    }
1479 +
1480 +    public void testThenAcceptBoth_sourceCancelled2() {
1481 +        for (ExecutionMode m : ExecutionMode.values())
1482 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1483 +        for (Integer v1 : new Integer[] { 1, null }) {
1484 +
1485 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1486 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1487 +        final SubtractAction r = new SubtractAction();
1488 +        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1489 +
1490 +        assertTrue(g.cancel(mayInterruptIfRunning));
1491 +        checkIncomplete(h);
1492 +        f.complete(v1);
1493 +
1494 +        checkCompletedWithWrappedCancellationException(h);
1495 +        checkCancelled(g);
1496 +        assertFalse(r.ran());
1497 +        checkCompletedNormally(f, v1);
1498 +        }
1499 +    }
1500 +
1501 +    public void testThenAcceptBoth_sourceCancelled3() {
1502 +        for (ExecutionMode m : ExecutionMode.values())
1503 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1504 +        for (Integer v1 : new Integer[] { 1, null }) {
1505 +
1506 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1507 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1508 +        final SubtractAction r = new SubtractAction();
1509 +
1510 +        assertTrue(g.cancel(mayInterruptIfRunning));
1511 +        f.complete(v1);
1512 +        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1513 +
1514 +        checkCompletedWithWrappedCancellationException(h);
1515 +        checkCancelled(g);
1516 +        assertFalse(r.ran());
1517 +        checkCompletedNormally(f, v1);
1518 +        }
1519 +    }
1520 +
1521 +    public void testThenAcceptBoth_sourceCancelled4() {
1522 +        for (ExecutionMode m : ExecutionMode.values())
1523 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1524 +        for (Integer v1 : new Integer[] { 1, null }) {
1525 +
1526 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1527 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1528 +        final SubtractAction r = new SubtractAction();
1529 +
1530 +        assertTrue(f.cancel(mayInterruptIfRunning));
1531 +        g.complete(v1);
1532 +        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1533 +
1534 +        checkCompletedWithWrappedCancellationException(h);
1535 +        checkCancelled(f);
1536 +        assertFalse(r.ran());
1537 +        checkCompletedNormally(g, v1);
1538 +        }
1539 +    }
1540 +
1541 +    /**
1542 +     * runAfterBoth result completes normally after normal
1543 +     * completion of sources
1544 +     */
1545 +    public void testRunAfterBoth_normalCompletion1() {
1546 +        for (ExecutionMode m : ExecutionMode.values())
1547 +        for (Integer v1 : new Integer[] { 1, null })
1548 +        for (Integer v2 : new Integer[] { 2, null }) {
1549 +
1550 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1551 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1552 +        final Noop r = new Noop();
1553 +        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1554 +
1555 +        f.complete(v1);
1556 +        checkIncomplete(h);
1557 +        assertFalse(r.ran);
1558 +        g.complete(v2);
1559 +
1560 +        checkCompletedNormally(h, null);
1561 +        assertTrue(r.ran);
1562 +        checkCompletedNormally(f, v1);
1563 +        checkCompletedNormally(g, v2);
1564 +        }
1565 +    }
1566 +
1567 +    public void testRunAfterBoth_normalCompletion2() {
1568 +        for (ExecutionMode m : ExecutionMode.values())
1569 +        for (Integer v1 : new Integer[] { 1, null })
1570 +        for (Integer v2 : new Integer[] { 2, null }) {
1571 +
1572 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1573 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1574 +        final Noop r = new Noop();
1575 +        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1576 +
1577 +        g.complete(v2);
1578 +        checkIncomplete(h);
1579 +        assertFalse(r.ran);
1580 +        f.complete(v1);
1581 +
1582 +        checkCompletedNormally(h, null);
1583 +        assertTrue(r.ran);
1584 +        checkCompletedNormally(f, v1);
1585 +        checkCompletedNormally(g, v2);
1586 +        }
1587 +    }
1588 +
1589 +    public void testRunAfterBoth_normalCompletion3() {
1590 +        for (ExecutionMode m : ExecutionMode.values())
1591 +        for (Integer v1 : new Integer[] { 1, null })
1592 +        for (Integer v2 : new Integer[] { 2, null }) {
1593 +
1594 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1595 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1596 +        final Noop r = new Noop();
1597 +
1598 +        g.complete(v2);
1599 +        f.complete(v1);
1600 +        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1601 +
1602 +        checkCompletedNormally(h, null);
1603 +        assertTrue(r.ran);
1604 +        checkCompletedNormally(f, v1);
1605 +        checkCompletedNormally(g, v2);
1606 +        }
1607 +    }
1608 +
1609 +    public void testRunAfterBoth_normalCompletion4() {
1610 +        for (ExecutionMode m : ExecutionMode.values())
1611 +        for (Integer v1 : new Integer[] { 1, null })
1612 +        for (Integer v2 : new Integer[] { 2, null }) {
1613 +
1614 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1615 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1616 +        final Noop r = new Noop();
1617 +
1618 +        f.complete(v1);
1619 +        g.complete(v2);
1620 +        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1621 +
1622 +        checkCompletedNormally(h, null);
1623 +        assertTrue(r.ran);
1624 +        checkCompletedNormally(f, v1);
1625 +        checkCompletedNormally(g, v2);
1626 +        }
1627 +    }
1628 +
1629 +    /**
1630 +     * runAfterBoth result completes exceptionally after exceptional
1631 +     * completion of either source
1632 +     */
1633 +    public void testRunAfterBoth_exceptionalCompletion1() {
1634 +        for (ExecutionMode m : ExecutionMode.values())
1635 +        for (Integer v1 : new Integer[] { 1, null }) {
1636 +
1637 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1638 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1639 +        final Noop r = new Noop();
1640 +        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1641 +        final CFException ex = new CFException();
1642 +
1643 +        f.completeExceptionally(ex);
1644 +        checkIncomplete(h);
1645 +        g.complete(v1);
1646 +
1647 +        checkCompletedWithWrappedCFException(h, ex);
1648 +        checkCompletedWithWrappedCFException(f, ex);
1649 +        assertFalse(r.ran);
1650 +        checkCompletedNormally(g, v1);
1651 +        }
1652 +    }
1653 +
1654 +    public void testRunAfterBoth_exceptionalCompletion2() {
1655 +        for (ExecutionMode m : ExecutionMode.values())
1656 +        for (Integer v1 : new Integer[] { 1, null }) {
1657 +
1658 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1659 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1660 +        final Noop r = new Noop();
1661 +        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1662 +        final CFException ex = new CFException();
1663 +
1664 +        g.completeExceptionally(ex);
1665 +        checkIncomplete(h);
1666 +        f.complete(v1);
1667 +
1668 +        checkCompletedWithWrappedCFException(h, ex);
1669 +        checkCompletedWithWrappedCFException(g, ex);
1670 +        assertFalse(r.ran);
1671 +        checkCompletedNormally(f, v1);
1672 +        }
1673 +    }
1674 +
1675 +    public void testRunAfterBoth_exceptionalCompletion3() {
1676 +        for (ExecutionMode m : ExecutionMode.values())
1677 +        for (Integer v1 : new Integer[] { 1, null }) {
1678 +
1679 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1680 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1681 +        final Noop r = new Noop();
1682 +        final CFException ex = new CFException();
1683 +
1684 +        g.completeExceptionally(ex);
1685 +        f.complete(v1);
1686 +        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1687 +
1688 +        checkCompletedWithWrappedCFException(h, ex);
1689 +        checkCompletedWithWrappedCFException(g, ex);
1690 +        assertFalse(r.ran);
1691 +        checkCompletedNormally(f, v1);
1692 +        }
1693 +    }
1694 +
1695 +    public void testRunAfterBoth_exceptionalCompletion4() {
1696 +        for (ExecutionMode m : ExecutionMode.values())
1697 +        for (Integer v1 : new Integer[] { 1, null }) {
1698 +
1699 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1700 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1701 +        final Noop r = new Noop();
1702 +        final CFException ex = new CFException();
1703 +
1704 +        f.completeExceptionally(ex);
1705 +        g.complete(v1);
1706 +        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1707 +
1708 +        checkCompletedWithWrappedCFException(h, ex);
1709 +        checkCompletedWithWrappedCFException(f, ex);
1710 +        assertFalse(r.ran);
1711 +        checkCompletedNormally(g, v1);
1712 +        }
1713 +    }
1714 +
1715 +    /**
1716 +     * runAfterBoth result completes exceptionally if action does
1717 +     */
1718 +    public void testRunAfterBoth_actionFailed1() {
1719 +        for (ExecutionMode m : ExecutionMode.values())
1720 +        for (Integer v1 : new Integer[] { 1, null })
1721 +        for (Integer v2 : new Integer[] { 2, null }) {
1722 +
1723 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1724 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1725 +        final FailingNoop r = new FailingNoop();
1726 +        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1727 +
1728 +        f.complete(v1);
1729 +        checkIncomplete(h);
1730 +        g.complete(v2);
1731 +
1732 +        checkCompletedWithWrappedCFException(h);
1733 +        checkCompletedNormally(f, v1);
1734 +        checkCompletedNormally(g, v2);
1735 +        }
1736 +    }
1737 +
1738 +    public void testRunAfterBoth_actionFailed2() {
1739 +        for (ExecutionMode m : ExecutionMode.values())
1740 +        for (Integer v1 : new Integer[] { 1, null })
1741 +        for (Integer v2 : new Integer[] { 2, null }) {
1742 +
1743 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1744 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1745 +        final FailingNoop r = new FailingNoop();
1746 +        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1747 +
1748 +        g.complete(v2);
1749 +        checkIncomplete(h);
1750 +        f.complete(v1);
1751 +
1752 +        checkCompletedWithWrappedCFException(h);
1753 +        checkCompletedNormally(f, v1);
1754 +        checkCompletedNormally(g, v2);
1755 +        }
1756 +    }
1757 +
1758 +    /**
1759 +     * runAfterBoth result completes exceptionally if either source cancelled
1760 +     */
1761 +    public void testRunAfterBoth_sourceCancelled1() {
1762 +        for (ExecutionMode m : ExecutionMode.values())
1763 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1764 +        for (Integer v1 : new Integer[] { 1, null }) {
1765 +
1766 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1767 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1768 +        final Noop r = new Noop();
1769 +        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1770 +
1771 +        assertTrue(f.cancel(mayInterruptIfRunning));
1772 +        checkIncomplete(h);
1773 +        g.complete(v1);
1774 +
1775 +        checkCompletedWithWrappedCancellationException(h);
1776 +        checkCancelled(f);
1777 +        assertFalse(r.ran);
1778 +        checkCompletedNormally(g, v1);
1779 +        }
1780 +    }
1781 +
1782 +    public void testRunAfterBoth_sourceCancelled2() {
1783 +        for (ExecutionMode m : ExecutionMode.values())
1784 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1785 +        for (Integer v1 : new Integer[] { 1, null }) {
1786 +
1787 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1788 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1789 +        final Noop r = new Noop();
1790 +        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1791 +
1792 +        assertTrue(g.cancel(mayInterruptIfRunning));
1793 +        checkIncomplete(h);
1794 +        f.complete(v1);
1795 +
1796 +        checkCompletedWithWrappedCancellationException(h);
1797 +        checkCancelled(g);
1798 +        assertFalse(r.ran);
1799 +        checkCompletedNormally(f, v1);
1800 +        }
1801 +    }
1802 +
1803 +    public void testRunAfterBoth_sourceCancelled3() {
1804 +        for (ExecutionMode m : ExecutionMode.values())
1805 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1806 +        for (Integer v1 : new Integer[] { 1, null }) {
1807 +
1808 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1809 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1810 +        final Noop r = new Noop();
1811 +
1812 +        assertTrue(g.cancel(mayInterruptIfRunning));
1813 +        f.complete(v1);
1814 +        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1815 +
1816 +        checkCompletedWithWrappedCancellationException(h);
1817 +        checkCancelled(g);
1818 +        assertFalse(r.ran);
1819 +        checkCompletedNormally(f, v1);
1820 +        }
1821 +    }
1822 +
1823 +    public void testRunAfterBoth_sourceCancelled4() {
1824 +        for (ExecutionMode m : ExecutionMode.values())
1825 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1826 +        for (Integer v1 : new Integer[] { 1, null }) {
1827 +
1828 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1829 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1830 +        final Noop r = new Noop();
1831 +
1832 +        assertTrue(f.cancel(mayInterruptIfRunning));
1833 +        g.complete(v1);
1834 +        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1835 +
1836 +        checkCompletedWithWrappedCancellationException(h);
1837 +        checkCancelled(f);
1838 +        assertFalse(r.ran);
1839 +        checkCompletedNormally(g, v1);
1840 +        }
1841 +    }
1842 +
1843 +    /**
1844 +     * applyToEither result completes normally after normal completion
1845 +     * of either source
1846 +     */
1847 +    public void testApplyToEither_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 IncFunction r = new IncFunction();
1855 +        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
1856 +
1857 +        f.complete(v1);
1858 +        checkCompletedNormally(h, inc(v1));
1859 +        g.complete(v2);
1860 +
1861 +        checkCompletedNormally(f, v1);
1862 +        checkCompletedNormally(g, v2);
1863 +        checkCompletedNormally(h, inc(v1));
1864 +        }
1865 +    }
1866 +
1867 +    public void testApplyToEither_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 IncFunction r = new IncFunction();
1875 +        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
1876 +
1877 +        g.complete(v2);
1878 +        checkCompletedNormally(h, inc(v2));
1879 +        f.complete(v1);
1880 +
1881 +        checkCompletedNormally(f, v1);
1882 +        checkCompletedNormally(g, v2);
1883 +        checkCompletedNormally(h, inc(v2));
1884 +        }
1885 +    }
1886 +    public void testApplyToEither_normalCompletion3() {
1887 +        for (ExecutionMode m : ExecutionMode.values())
1888 +        for (Integer v1 : new Integer[] { 1, null })
1889 +        for (Integer v2 : new Integer[] { 2, null }) {
1890 +
1891 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1892 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1893 +        final IncFunction r = new IncFunction();
1894 +
1895 +        f.complete(v1);
1896 +        g.complete(v2);
1897 +        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
1898 +
1899 +        checkCompletedNormally(f, v1);
1900 +        checkCompletedNormally(g, v2);
1901 +
1902 +        // unspecified behavior
1903 +        assertTrue(Objects.equals(h.join(), inc(v1)) ||
1904 +                   Objects.equals(h.join(), inc(v2)));
1905 +        }
1906 +    }
1907 +
1908 +    /**
1909 +     * applyToEither result completes exceptionally after exceptional
1910 +     * completion of either source
1911 +     */
1912 +    public void testApplyToEither_exceptionalCompletion1() {
1913 +        for (ExecutionMode m : ExecutionMode.values())
1914 +        for (Integer v1 : new Integer[] { 1, null }) {
1915 +
1916 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1917 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1918 +        final IncFunction r = new IncFunction();
1919 +        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
1920 +        final CFException ex = new CFException();
1921 +
1922 +        f.completeExceptionally(ex);
1923 +        checkCompletedWithWrappedCFException(h, ex);
1924 +        g.complete(v1);
1925 +
1926 +        assertFalse(r.ran());
1927 +        checkCompletedNormally(g, v1);
1928 +        checkCompletedWithWrappedCFException(f, ex);
1929 +        checkCompletedWithWrappedCFException(h, ex);
1930 +        }
1931 +    }
1932 +
1933 +    public void testApplyToEither_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 IncFunction r = new IncFunction();
1940 +        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
1941 +        final CFException ex = new CFException();
1942 +
1943 +        g.completeExceptionally(ex);
1944 +        checkCompletedWithWrappedCFException(h, ex);
1945 +        f.complete(v1);
1946 +
1947 +        assertFalse(r.ran());
1948 +        checkCompletedNormally(f, v1);
1949 +        checkCompletedWithWrappedCFException(g, ex);
1950 +        checkCompletedWithWrappedCFException(h, ex);
1951 +        }
1952 +    }
1953 +
1954 +    public void testApplyToEither_exceptionalCompletion3() {
1955 +        for (ExecutionMode m : ExecutionMode.values())
1956 +        for (Integer v1 : new Integer[] { 1, null }) {
1957 +
1958 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1959 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1960 +        final IncFunction r = new IncFunction();
1961 +        final CFException ex = new CFException();
1962 +
1963 +        g.completeExceptionally(ex);
1964 +        f.complete(v1);
1965 +        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
1966 +
1967 +        // unspecified behavior
1968 +        Integer v;
1969 +        try {
1970 +            assertEquals(h.join(), inc(v1));
1971 +            assertTrue(r.ran());
1972 +        } catch (CompletionException ok) {
1973 +            checkCompletedWithWrappedCFException(h, ex);
1974 +            assertFalse(r.ran());
1975 +        }
1976 +
1977 +        checkCompletedWithWrappedCFException(g, ex);
1978 +        checkCompletedNormally(f, v1);
1979 +        }
1980 +    }
1981 +
1982 +    public void testApplyToEither_exceptionalCompletion4() {
1983 +        for (ExecutionMode m : ExecutionMode.values())
1984 +        for (Integer v1 : new Integer[] { 1, null }) {
1985 +
1986 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1987 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1988 +        final IncFunction r = new IncFunction();
1989 +        final CFException ex = new CFException();
1990 +
1991 +        f.completeExceptionally(ex);
1992 +        g.complete(v1);
1993 +        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
1994 +
1995 +        // unspecified behavior
1996 +        Integer v;
1997 +        try {
1998 +            assertEquals(h.join(), inc(v1));
1999 +            assertTrue(r.ran());
2000 +        } catch (CompletionException ok) {
2001 +            checkCompletedWithWrappedCFException(h, ex);
2002 +            assertFalse(r.ran());
2003 +        }
2004 +
2005 +        checkCompletedWithWrappedCFException(f, ex);
2006 +        assertFalse(r.ran());
2007 +        checkCompletedNormally(g, v1);
2008 +        }
2009 +    }
2010 +
2011 +    /**
2012 +     * applyToEither result completes exceptionally if action does
2013 +     */
2014 +    public void testApplyToEither_actionFailed1() {
2015 +        for (ExecutionMode m : ExecutionMode.values())
2016 +        for (Integer v1 : new Integer[] { 1, null })
2017 +        for (Integer v2 : new Integer[] { 2, null }) {
2018 +
2019 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2020 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2021 +        final FailingFunction r = new FailingFunction();
2022 +        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2023 +
2024 +        f.complete(v1);
2025 +        checkCompletedWithWrappedCFException(h);
2026 +        g.complete(v2);
2027 +        checkCompletedNormally(f, v1);
2028 +        checkCompletedNormally(g, v2);
2029 +        }
2030 +    }
2031 +
2032 +    public void testApplyToEither_actionFailed2() {
2033 +        for (ExecutionMode m : ExecutionMode.values())
2034 +        for (Integer v1 : new Integer[] { 1, null })
2035 +        for (Integer v2 : new Integer[] { 2, null }) {
2036 +
2037 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2038 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2039 +        final FailingFunction r = new FailingFunction();
2040 +        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2041 +
2042 +        g.complete(v2);
2043 +        checkCompletedWithWrappedCFException(h);
2044 +        f.complete(v1);
2045 +        checkCompletedNormally(f, v1);
2046 +        checkCompletedNormally(g, v2);
2047 +        }
2048 +    }
2049 +
2050 +    /**
2051 +     * applyToEither result completes exceptionally if either source cancelled
2052 +     */
2053 +    public void testApplyToEither_sourceCancelled1() {
2054 +        for (ExecutionMode m : ExecutionMode.values())
2055 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2056 +        for (Integer v1 : new Integer[] { 1, null }) {
2057 +
2058 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2059 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2060 +        final IncFunction r = new IncFunction();
2061 +        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2062 +
2063 +        assertTrue(f.cancel(mayInterruptIfRunning));
2064 +        checkCompletedWithWrappedCancellationException(h);
2065 +        g.complete(v1);
2066 +
2067 +        checkCancelled(f);
2068 +        assertFalse(r.ran());
2069 +        checkCompletedNormally(g, v1);
2070 +        checkCompletedWithWrappedCancellationException(h);
2071 +        }
2072 +    }
2073 +
2074 +    public void testApplyToEither_sourceCancelled2() {
2075 +        for (ExecutionMode m : ExecutionMode.values())
2076 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2077 +        for (Integer v1 : new Integer[] { 1, null }) {
2078 +
2079 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2080 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2081 +        final IncFunction r = new IncFunction();
2082 +        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2083 +
2084 +        assertTrue(g.cancel(mayInterruptIfRunning));
2085 +        checkCompletedWithWrappedCancellationException(h);
2086 +        f.complete(v1);
2087 +
2088 +        checkCancelled(g);
2089 +        assertFalse(r.ran());
2090 +        checkCompletedNormally(f, v1);
2091 +        checkCompletedWithWrappedCancellationException(h);
2092 +        }
2093 +    }
2094 +
2095 +    public void testApplyToEither_sourceCancelled3() {
2096 +        for (ExecutionMode m : ExecutionMode.values())
2097 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2098 +        for (Integer v1 : new Integer[] { 1, null }) {
2099 +
2100 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2101 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2102 +        final IncFunction r = new IncFunction();
2103 +
2104 +        assertTrue(g.cancel(mayInterruptIfRunning));
2105 +        f.complete(v1);
2106 +        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2107 +
2108 +        // unspecified behavior
2109 +        Integer v;
2110 +        try {
2111 +            assertEquals(h.join(), inc(v1));
2112 +            assertTrue(r.ran());
2113 +        } catch (CompletionException ok) {
2114 +            checkCompletedWithWrappedCancellationException(h);
2115 +            assertFalse(r.ran());
2116 +        }
2117 +
2118 +        checkCancelled(g);
2119 +        checkCompletedNormally(f, v1);
2120 +        }
2121 +    }
2122 +
2123 +    public void testApplyToEither_sourceCancelled4() {
2124 +        for (ExecutionMode m : ExecutionMode.values())
2125 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2126 +        for (Integer v1 : new Integer[] { 1, null }) {
2127 +
2128 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2129 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2130 +        final IncFunction r = new IncFunction();
2131 +
2132 +        assertTrue(f.cancel(mayInterruptIfRunning));
2133 +        g.complete(v1);
2134 +        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2135 +
2136 +        // unspecified behavior
2137 +        Integer v;
2138 +        try {
2139 +            assertEquals(h.join(), inc(v1));
2140 +            assertTrue(r.ran());
2141 +        } catch (CompletionException ok) {
2142 +            checkCompletedWithWrappedCancellationException(h);
2143 +            assertFalse(r.ran());
2144 +        }
2145 +
2146 +        checkCancelled(f);
2147 +        checkCompletedNormally(g, v1);
2148 +        }
2149 +    }
2150 +
2151 +    /**
2152 +     * acceptEither result completes normally after normal completion
2153 +     * of either source
2154 +     */
2155 +    public void testAcceptEither() {
2156 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2157 +        CompletableFuture<Integer> f2 = new CompletableFuture<>();
2158 +        IncAction r = new IncAction();
2159 +        CompletableFuture<Void> g = f.acceptEither(f2, r);
2160 +        f.complete(one);
2161 +        checkCompletedNormally(g, null);
2162 +        f2.complete(one);
2163 +        checkCompletedNormally(g, null);
2164 +        assertEquals(r.value, (Integer) 2);
2165 +
2166 +        r = new IncAction();
2167 +        f = new CompletableFuture<>();
2168 +        f.complete(one);
2169 +        f2 = new CompletableFuture<>();
2170 +        g = f.acceptEither(f2, r);
2171 +        checkCompletedNormally(g, null);
2172 +        assertEquals(r.value, (Integer) 2);
2173 +    }
2174 +
2175 +    /**
2176 +     * acceptEither result completes exceptionally after exceptional
2177 +     * completion of either source
2178 +     */
2179 +    public void testAcceptEither2() {
2180 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2181 +        CompletableFuture<Integer> f2 = new CompletableFuture<>();
2182 +        IncAction r = new IncAction();
2183 +        CompletableFuture<Void> g = f.acceptEither(f2, r);
2184 +        f.completeExceptionally(new CFException());
2185 +        f2.complete(one);
2186 +        checkCompletedWithWrappedCFException(g);
2187 +
2188 +        r = new IncAction();
2189 +        f = new CompletableFuture<>();
2190 +        f2 = new CompletableFuture<>();
2191 +        f2.completeExceptionally(new CFException());
2192 +        g = f.acceptEither(f2, r);
2193 +        checkCompletedWithWrappedCFException(g);
2194 +    }
2195 +
2196 +    /**
2197 +     * acceptEither result completes exceptionally if action does
2198 +     */
2199 +    public void testAcceptEither3() {
2200 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2201 +        CompletableFuture<Integer> f2 = new CompletableFuture<>();
2202 +        FailingConsumer r = new FailingConsumer();
2203 +        CompletableFuture<Void> g = f.acceptEither(f2, r);
2204 +        f2.complete(two);
2205 +        checkCompletedWithWrappedCFException(g);
2206 +    }
2207 +
2208 +    /**
2209 +     * acceptEither result completes exceptionally if either source cancelled
2210 +     */
2211 +    public void testAcceptEither4() {
2212 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2213 +        CompletableFuture<Integer> f2 = new CompletableFuture<>();
2214 +        IncAction r = new IncAction();
2215 +        CompletableFuture<Void> g = f.acceptEither(f2, r);
2216 +        assertTrue(f.cancel(true));
2217 +        checkCompletedWithWrappedCancellationException(g);
2218 +        f = new CompletableFuture<>();
2219 +        f2 = new CompletableFuture<>();
2220 +        assertTrue(f2.cancel(true));
2221 +        checkCompletedWithWrappedCancellationException(g);
2222 +    }
2223 +
2224 +    /**
2225 +     * runAfterEither result completes normally after normal completion
2226 +     * of either source
2227 +     */
2228 +    public void testRunAfterEither() {
2229 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2230 +        CompletableFuture<Integer> f2 = new CompletableFuture<>();
2231 +        Noop r = new Noop();
2232 +        CompletableFuture<Void> g = f.runAfterEither(f2, r);
2233 +        f.complete(one);
2234 +        checkCompletedNormally(g, null);
2235 +        f2.complete(one);
2236 +        checkCompletedNormally(g, null);
2237 +        assertTrue(r.ran);
2238 +
2239 +        r = new Noop();
2240 +        f = new CompletableFuture<>();
2241 +        f.complete(one);
2242 +        f2 = new CompletableFuture<>();
2243 +        g = f.runAfterEither(f2, r);
2244 +        checkCompletedNormally(g, null);
2245 +        assertTrue(r.ran);
2246 +    }
2247 +
2248 +    /**
2249 +     * runAfterEither result completes exceptionally after exceptional
2250 +     * completion of either source
2251 +     */
2252 +    public void testRunAfterEither2() {
2253 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2254 +        CompletableFuture<Integer> f2 = new CompletableFuture<>();
2255 +        Noop r = new Noop();
2256 +        CompletableFuture<Void> g = f.runAfterEither(f2, r);
2257 +        f.completeExceptionally(new CFException());
2258 +        f2.complete(one);
2259 +        checkCompletedWithWrappedCFException(g);
2260 +
2261 +        r = new Noop();
2262 +        f = new CompletableFuture<>();
2263 +        f2 = new CompletableFuture<>();
2264 +        f2.completeExceptionally(new CFException());
2265 +        g = f.runAfterEither(f2, r);
2266 +        checkCompletedWithWrappedCFException(g);
2267 +    }
2268 +
2269 +    /**
2270 +     * runAfterEither result completes exceptionally if action does
2271 +     */
2272 +    public void testRunAfterEither3() {
2273 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2274 +        CompletableFuture<Integer> f2 = new CompletableFuture<>();
2275 +        FailingNoop r = new FailingNoop();
2276 +        CompletableFuture<Void> g = f.runAfterEither(f2, r);
2277 +        f2.complete(two);
2278 +        checkCompletedWithWrappedCFException(g);
2279 +    }
2280 +
2281 +    /**
2282 +     * runAfterEither result completes exceptionally if either source cancelled
2283 +     */
2284 +    public void testRunAfterEither4() {
2285 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2286 +        CompletableFuture<Integer> f2 = new CompletableFuture<>();
2287 +        Noop r = new Noop();
2288 +        CompletableFuture<Void> g = f.runAfterEither(f2, r);
2289 +        assertTrue(f.cancel(true));
2290 +        checkCompletedWithWrappedCancellationException(g);
2291 +        f = new CompletableFuture<>();
2292 +        f2 = new CompletableFuture<>();
2293 +        assertTrue(f2.cancel(true));
2294 +        checkCompletedWithWrappedCancellationException(g);
2295 +    }
2296 +
2297 +    /**
2298 +     * thenCompose result completes normally after normal completion of source
2299 +     */
2300 +    public void testThenCompose() {
2301 +        CompletableFuture<Integer> f, g;
2302 +        CompletableFutureInc r;
2303 +
2304 +        f = new CompletableFuture<>();
2305 +        g = f.thenCompose(r = new CompletableFutureInc());
2306 +        f.complete(one);
2307 +        checkCompletedNormally(g, two);
2308 +        assertTrue(r.ran);
2309 +
2310 +        f = new CompletableFuture<>();
2311 +        f.complete(one);
2312 +        g = f.thenCompose(r = new CompletableFutureInc());
2313 +        checkCompletedNormally(g, two);
2314 +        assertTrue(r.ran);
2315 +    }
2316 +
2317 +    /**
2318 +     * thenCompose result completes exceptionally after exceptional
2319 +     * completion of source
2320 +     */
2321 +    public void testThenCompose2() {
2322 +        CompletableFuture<Integer> f, g;
2323 +        CompletableFutureInc r;
2324 +
2325 +        f = new CompletableFuture<>();
2326 +        g = f.thenCompose(r = new CompletableFutureInc());
2327 +        f.completeExceptionally(new CFException());
2328 +        checkCompletedWithWrappedCFException(g);
2329 +
2330 +        f = new CompletableFuture<>();
2331 +        f.completeExceptionally(new CFException());
2332 +        g = f.thenCompose(r = new CompletableFutureInc());
2333 +        checkCompletedWithWrappedCFException(g);
2334 +    }
2335 +
2336 +    /**
2337 +     * thenCompose result completes exceptionally if action does
2338 +     */
2339 +    public void testThenCompose3() {
2340 +        CompletableFuture<Integer> f, g;
2341 +        FailingCompletableFutureFunction r;
2342 +
2343 +        f = new CompletableFuture<>();
2344 +        g = f.thenCompose(r = new FailingCompletableFutureFunction());
2345 +        f.complete(one);
2346 +        checkCompletedWithWrappedCFException(g);
2347 +
2348 +        f = new CompletableFuture<>();
2349 +        f.complete(one);
2350 +        g = f.thenCompose(r = new FailingCompletableFutureFunction());
2351 +        checkCompletedWithWrappedCFException(g);
2352 +    }
2353 +
2354 +    /**
2355 +     * thenCompose result completes exceptionally if source cancelled
2356 +     */
2357 +    public void testThenCompose4() {
2358 +        CompletableFuture<Integer> f, g;
2359 +        CompletableFutureInc r;
2360 +
2361 +        f = new CompletableFuture<>();
2362 +        g = f.thenCompose(r = new CompletableFutureInc());
2363 +        assertTrue(f.cancel(true));
2364 +        checkCompletedWithWrappedCancellationException(g);
2365 +
2366 +        f = new CompletableFuture<>();
2367 +        assertTrue(f.cancel(true));
2368 +        g = f.thenCompose(r = new CompletableFutureInc());
2369 +        checkCompletedWithWrappedCancellationException(g);
2370 +    }
2371 +
2372 +    // asyncs
2373 +
2374 +    /**
2375 +     * thenRunAsync result completes normally after normal completion of source
2376 +     */
2377 +    public void testThenRunAsync() {
2378 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2379 +        Noop r = new Noop();
2380 +        CompletableFuture<Void> g = f.thenRunAsync(r);
2381 +        f.complete(null);
2382 +        checkCompletedNormally(g, null);
2383 +
2384 +        // reordered version
2385 +        f = new CompletableFuture<>();
2386 +        f.complete(null);
2387 +        r = new Noop();
2388 +        g = f.thenRunAsync(r);
2389 +        checkCompletedNormally(g, null);
2390 +    }
2391 +
2392 +    /**
2393 +     * thenRunAsync result completes exceptionally after exceptional
2394 +     * completion of source
2395 +     */
2396 +    public void testThenRunAsync2() {
2397 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2398 +        Noop r = new Noop();
2399 +        CompletableFuture<Void> g = f.thenRunAsync(r);
2400 +        f.completeExceptionally(new CFException());
2401 +        try {
2402 +            g.join();
2403 +            shouldThrow();
2404 +        } catch (CompletionException success) {}
2405 +        checkCompletedWithWrappedCFException(g);
2406 +    }
2407 +
2408 +    /**
2409 +     * thenRunAsync result completes exceptionally if action does
2410 +     */
2411 +    public void testThenRunAsync3() {
2412 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2413 +        FailingNoop r = new FailingNoop();
2414 +        CompletableFuture<Void> g = f.thenRunAsync(r);
2415 +        f.complete(null);
2416 +        checkCompletedWithWrappedCFException(g);
2417 +    }
2418 +
2419 +    /**
2420 +     * thenRunAsync result completes exceptionally if source cancelled
2421 +     */
2422 +    public void testThenRunAsync4() {
2423 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2424 +        Noop r = new Noop();
2425 +        CompletableFuture<Void> g = f.thenRunAsync(r);
2426 +        assertTrue(f.cancel(true));
2427 +        checkCompletedWithWrappedCancellationException(g);
2428 +    }
2429 +
2430 +    /**
2431 +     * thenApplyAsync result completes normally after normal completion of source
2432 +     */
2433 +    public void testThenApplyAsync() {
2434 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2435 +        CompletableFuture<Integer> g = f.thenApplyAsync(inc);
2436 +        f.complete(one);
2437 +        checkCompletedNormally(g, two);
2438 +    }
2439 +
2440 +    /**
2441 +     * thenApplyAsync result completes exceptionally after exceptional
2442 +     * completion of source
2443 +     */
2444 +    public void testThenApplyAsync2() {
2445 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2446 +        CompletableFuture<Integer> g = f.thenApplyAsync(inc);
2447 +        f.completeExceptionally(new CFException());
2448 +        checkCompletedWithWrappedCFException(g);
2449 +    }
2450 +
2451 +    /**
2452 +     * thenApplyAsync result completes exceptionally if action does
2453 +     */
2454 +    public void testThenApplyAsync3() {
2455 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2456 +        FailingFunction r = new FailingFunction();
2457 +        CompletableFuture<Integer> g = f.thenApplyAsync(r);
2458 +        f.complete(null);
2459 +        checkCompletedWithWrappedCFException(g);
2460 +    }
2461 +
2462 +    /**
2463 +     * thenApplyAsync result completes exceptionally if source cancelled
2464 +     */
2465 +    public void testThenApplyAsync4() {
2466 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2467 +        CompletableFuture<Integer> g = f.thenApplyAsync(inc);
2468 +        assertTrue(f.cancel(true));
2469 +        checkCompletedWithWrappedCancellationException(g);
2470 +    }
2471 +
2472 +    /**
2473 +     * thenAcceptAsync result completes normally after normal
2474 +     * completion of source
2475 +     */
2476 +    public void testThenAcceptAsync() {
2477 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2478 +        IncAction r = new IncAction();
2479 +        CompletableFuture<Void> g = f.thenAcceptAsync(r);
2480 +        f.complete(one);
2481 +        checkCompletedNormally(g, null);
2482 +        assertEquals(r.value, (Integer) 2);
2483 +    }
2484 +
2485 +    /**
2486 +     * thenAcceptAsync result completes exceptionally after exceptional
2487 +     * completion of source
2488 +     */
2489 +    public void testThenAcceptAsync2() {
2490 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2491 +        IncAction r = new IncAction();
2492 +        CompletableFuture<Void> g = f.thenAcceptAsync(r);
2493 +        f.completeExceptionally(new CFException());
2494 +        checkCompletedWithWrappedCFException(g);
2495 +    }
2496 +
2497 +    /**
2498 +     * thenAcceptAsync result completes exceptionally if action does
2499 +     */
2500 +    public void testThenAcceptAsync3() {
2501 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2502 +        FailingConsumer r = new FailingConsumer();
2503 +        CompletableFuture<Void> g = f.thenAcceptAsync(r);
2504 +        f.complete(null);
2505 +        checkCompletedWithWrappedCFException(g);
2506 +    }
2507 +
2508 +    /**
2509 +     * thenAcceptAsync result completes exceptionally if source cancelled
2510 +     */
2511 +    public void testThenAcceptAsync4() {
2512 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2513 +        IncAction r = new IncAction();
2514 +        CompletableFuture<Void> g = f.thenAcceptAsync(r);
2515 +        assertTrue(f.cancel(true));
2516 +        checkCompletedWithWrappedCancellationException(g);
2517 +    }
2518 +
2519 +    /**
2520 +     * acceptEitherAsync result completes normally after normal
2521 +     * completion of sources
2522 +     */
2523 +    public void testAcceptEitherAsync() {
2524 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2525 +        CompletableFuture<Integer> f2 = new CompletableFuture<>();
2526 +        IncAction r = new IncAction();
2527 +        CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
2528 +        f.complete(one);
2529 +        checkCompletedNormally(g, null);
2530 +        assertEquals(r.value, (Integer) 2);
2531 +
2532 +        r = new IncAction();
2533 +        f = new CompletableFuture<>();
2534 +        f.complete(one);
2535 +        f2 = new CompletableFuture<>();
2536 +        g = f.acceptEitherAsync(f2, r);
2537 +        checkCompletedNormally(g, null);
2538 +        assertEquals(r.value, (Integer) 2);
2539 +    }
2540 +
2541 +    /**
2542 +     * acceptEitherAsync result completes exceptionally after exceptional
2543 +     * completion of source
2544 +     */
2545 +    public void testAcceptEitherAsync2() {
2546 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2547 +        CompletableFuture<Integer> f2 = new CompletableFuture<>();
2548 +        IncAction r = new IncAction();
2549 +        CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
2550 +        f.completeExceptionally(new CFException());
2551 +        checkCompletedWithWrappedCFException(g);
2552 +
2553 +        r = new IncAction();
2554 +        f = new CompletableFuture<>();
2555 +        f2 = new CompletableFuture<>();
2556 +        f2.completeExceptionally(new CFException());
2557 +        g = f.acceptEitherAsync(f2, r);
2558 +        f.complete(one);
2559 +        checkCompletedWithWrappedCFException(g);
2560 +    }
2561 +
2562 +    /**
2563 +     * acceptEitherAsync result completes exceptionally if action does
2564 +     */
2565 +    public void testAcceptEitherAsync3() {
2566 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2567 +        CompletableFuture<Integer> f2 = new CompletableFuture<>();
2568 +        FailingConsumer r = new FailingConsumer();
2569 +        CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
2570 +        f.complete(one);
2571 +        checkCompletedWithWrappedCFException(g);
2572 +    }
2573 +
2574 +    /**
2575 +     * acceptEitherAsync result completes exceptionally if either
2576 +     * source cancelled
2577 +     */
2578 +    public void testAcceptEitherAsync4() {
2579 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2580 +        CompletableFuture<Integer> f2 = new CompletableFuture<>();
2581 +        IncAction r = new IncAction();
2582 +        CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
2583 +        assertTrue(f.cancel(true));
2584 +        checkCompletedWithWrappedCancellationException(g);
2585 +
2586 +        r = new IncAction();
2587 +        f = new CompletableFuture<>();
2588 +        f2 = new CompletableFuture<>();
2589 +        assertTrue(f2.cancel(true));
2590 +        g = f.acceptEitherAsync(f2, r);
2591 +        checkCompletedWithWrappedCancellationException(g);
2592 +    }
2593 +
2594 +    /**
2595 +     * runAfterEitherAsync result completes normally after normal
2596 +     * completion of sources
2597 +     */
2598 +    public void testRunAfterEitherAsync() {
2599 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2600 +        CompletableFuture<Integer> f2 = new CompletableFuture<>();
2601 +        Noop r = new Noop();
2602 +        CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
2603 +        f.complete(one);
2604 +        checkCompletedNormally(g, null);
2605 +        assertTrue(r.ran);
2606 +
2607 +        r = new Noop();
2608 +        f = new CompletableFuture<>();
2609 +        f.complete(one);
2610 +        f2 = new CompletableFuture<>();
2611 +        g = f.runAfterEitherAsync(f2, r);
2612 +        checkCompletedNormally(g, null);
2613 +        assertTrue(r.ran);
2614 +    }
2615 +
2616 +    /**
2617 +     * runAfterEitherAsync result completes exceptionally after exceptional
2618 +     * completion of source
2619 +     */
2620 +    public void testRunAfterEitherAsync2() {
2621 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2622 +        CompletableFuture<Integer> f2 = new CompletableFuture<>();
2623 +        Noop r = new Noop();
2624 +        CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
2625 +        f.completeExceptionally(new CFException());
2626 +        checkCompletedWithWrappedCFException(g);
2627 +
2628 +        r = new Noop();
2629 +        f = new CompletableFuture<>();
2630 +        f2 = new CompletableFuture<>();
2631 +        f2.completeExceptionally(new CFException());
2632 +        g = f.runAfterEitherAsync(f2, r);
2633 +        f.complete(one);
2634 +        checkCompletedWithWrappedCFException(g);
2635 +    }
2636 +
2637 +    /**
2638 +     * runAfterEitherAsync result completes exceptionally if action does
2639 +     */
2640 +    public void testRunAfterEitherAsync3() {
2641 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2642 +        CompletableFuture<Integer> f2 = new CompletableFuture<>();
2643 +        FailingNoop r = new FailingNoop();
2644 +        CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
2645 +        f.complete(one);
2646 +        checkCompletedWithWrappedCFException(g);
2647 +    }
2648 +
2649 +    /**
2650 +     * runAfterEitherAsync result completes exceptionally if either
2651 +     * source cancelled
2652 +     */
2653 +    public void testRunAfterEitherAsync4() {
2654 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2655 +        CompletableFuture<Integer> f2 = new CompletableFuture<>();
2656 +        Noop r = new Noop();
2657 +        CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
2658 +        assertTrue(f.cancel(true));
2659 +        checkCompletedWithWrappedCancellationException(g);
2660 +
2661 +        r = new Noop();
2662 +        f = new CompletableFuture<>();
2663 +        f2 = new CompletableFuture<>();
2664 +        assertTrue(f2.cancel(true));
2665 +        g = f.runAfterEitherAsync(f2, r);
2666 +        checkCompletedWithWrappedCancellationException(g);
2667 +    }
2668 +
2669 +    /**
2670 +     * thenComposeAsync result completes normally after normal
2671 +     * completion of source
2672 +     */
2673 +    public void testThenComposeAsync() {
2674 +        CompletableFuture<Integer> f, g;
2675 +        CompletableFutureInc r;
2676 +
2677 +        f = new CompletableFuture<>();
2678 +        g = f.thenComposeAsync(r = new CompletableFutureInc());
2679 +        f.complete(one);
2680 +        checkCompletedNormally(g, two);
2681 +
2682 +        f = new CompletableFuture<>();
2683 +        f.complete(one);
2684 +        g = f.thenComposeAsync(r = new CompletableFutureInc());
2685 +        checkCompletedNormally(g, two);
2686 +    }
2687 +
2688 +    /**
2689 +     * thenComposeAsync result completes exceptionally after
2690 +     * exceptional completion of source
2691 +     */
2692 +    public void testThenComposeAsync2() {
2693 +        CompletableFuture<Integer> f, g;
2694 +        CompletableFutureInc r;
2695 +
2696 +        f = new CompletableFuture<>();
2697 +        g = f.thenComposeAsync(r = new CompletableFutureInc());
2698 +        f.completeExceptionally(new CFException());
2699 +        checkCompletedWithWrappedCFException(g);
2700 +        assertFalse(r.ran);
2701 +
2702 +        f = new CompletableFuture<>();
2703 +        f.completeExceptionally(new CFException());
2704 +        g = f.thenComposeAsync(r = new CompletableFutureInc());
2705 +        checkCompletedWithWrappedCFException(g);
2706 +        assertFalse(r.ran);
2707 +    }
2708 +
2709 +    /**
2710 +     * thenComposeAsync result completes exceptionally if action does
2711 +     */
2712 +    public void testThenComposeAsync3() {
2713 +        CompletableFuture<Integer> f, g;
2714 +        FailingCompletableFutureFunction r;
2715 +
2716 +        f = new CompletableFuture<>();
2717 +        g = f.thenComposeAsync(r = new FailingCompletableFutureFunction());
2718 +        f.complete(one);
2719 +        checkCompletedWithWrappedCFException(g);
2720 +
2721 +        f = new CompletableFuture<>();
2722 +        f.complete(one);
2723 +        g = f.thenComposeAsync(r = new FailingCompletableFutureFunction());
2724 +        checkCompletedWithWrappedCFException(g);
2725 +    }
2726 +
2727 +    /**
2728 +     * thenComposeAsync result completes exceptionally if source cancelled
2729 +     */
2730 +    public void testThenComposeAsync4() {
2731 +        CompletableFuture<Integer> f, g;
2732 +        CompletableFutureInc r;
2733 +
2734 +        f = new CompletableFuture<>();
2735 +        g = f.thenComposeAsync(r = new CompletableFutureInc());
2736 +        assertTrue(f.cancel(true));
2737 +        checkCompletedWithWrappedCancellationException(g);
2738 +
2739 +        f = new CompletableFuture<>();
2740 +        assertTrue(f.cancel(true));
2741 +        g = f.thenComposeAsync(r = new CompletableFutureInc());
2742 +        checkCompletedWithWrappedCancellationException(g);
2743 +    }
2744 +
2745 +    // async with explicit executors
2746 +
2747 +    /**
2748 +     * thenRunAsync result completes normally after normal completion of source
2749 +     */
2750 +    public void testThenRunAsyncE() {
2751 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2752 +        Noop r = new Noop();
2753 +        CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
2754 +        f.complete(null);
2755 +        checkCompletedNormally(g, null);
2756 +
2757 +        // reordered version
2758 +        f = new CompletableFuture<>();
2759 +        f.complete(null);
2760 +        r = new Noop();
2761 +        g = f.thenRunAsync(r, new ThreadExecutor());
2762 +        checkCompletedNormally(g, null);
2763 +    }
2764 +
2765 +    /**
2766 +     * thenRunAsync result completes exceptionally after exceptional
2767 +     * completion of source
2768 +     */
2769 +    public void testThenRunAsync2E() {
2770 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2771 +        Noop r = new Noop();
2772 +        CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
2773 +        f.completeExceptionally(new CFException());
2774 +        try {
2775 +            g.join();
2776 +            shouldThrow();
2777 +        } catch (CompletionException success) {}
2778 +        checkCompletedWithWrappedCFException(g);
2779 +    }
2780 +
2781 +    /**
2782 +     * thenRunAsync result completes exceptionally if action does
2783 +     */
2784 +    public void testThenRunAsync3E() {
2785 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2786 +        FailingNoop r = new FailingNoop();
2787 +        CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
2788 +        f.complete(null);
2789 +        checkCompletedWithWrappedCFException(g);
2790 +    }
2791 +
2792 +    /**
2793 +     * thenRunAsync result completes exceptionally if source cancelled
2794 +     */
2795 +    public void testThenRunAsync4E() {
2796 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2797 +        Noop r = new Noop();
2798 +        CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
2799 +        assertTrue(f.cancel(true));
2800 +        checkCompletedWithWrappedCancellationException(g);
2801 +    }
2802 +
2803 +    /**
2804 +     * thenApplyAsync result completes normally after normal completion of source
2805 +     */
2806 +    public void testThenApplyAsyncE() {
2807 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2808 +        CompletableFuture<Integer> g = f.thenApplyAsync(inc, new ThreadExecutor());
2809 +        f.complete(one);
2810 +        checkCompletedNormally(g, two);
2811 +    }
2812 +
2813 +    /**
2814 +     * thenApplyAsync result completes exceptionally after exceptional
2815 +     * completion of source
2816 +     */
2817 +    public void testThenApplyAsync2E() {
2818 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2819 +        CompletableFuture<Integer> g = f.thenApplyAsync(inc, new ThreadExecutor());
2820 +        f.completeExceptionally(new CFException());
2821 +        checkCompletedWithWrappedCFException(g);
2822 +    }
2823 +
2824 +    /**
2825 +     * thenApplyAsync result completes exceptionally if action does
2826 +     */
2827 +    public void testThenApplyAsync3E() {
2828 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2829 +        FailingFunction r = new FailingFunction();
2830 +        CompletableFuture<Integer> g = f.thenApplyAsync(r, new ThreadExecutor());
2831 +        f.complete(null);
2832 +        checkCompletedWithWrappedCFException(g);
2833 +    }
2834 +
2835 +    /**
2836 +     * thenApplyAsync result completes exceptionally if source cancelled
2837 +     */
2838 +    public void testThenApplyAsync4E() {
2839 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2840 +        CompletableFuture<Integer> g = f.thenApplyAsync(inc, new ThreadExecutor());
2841 +        assertTrue(f.cancel(true));
2842 +        checkCompletedWithWrappedCancellationException(g);
2843 +    }
2844 +
2845 +    /**
2846 +     * thenAcceptAsync result completes normally after normal
2847 +     * completion of source
2848 +     */
2849 +    public void testThenAcceptAsyncE() {
2850 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2851 +        IncAction r = new IncAction();
2852 +        CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
2853 +        f.complete(one);
2854 +        checkCompletedNormally(g, null);
2855 +        assertEquals(r.value, (Integer) 2);
2856 +    }
2857 +
2858 +    /**
2859 +     * thenAcceptAsync result completes exceptionally after exceptional
2860 +     * completion of source
2861 +     */
2862 +    public void testThenAcceptAsync2E() {
2863 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2864 +        IncAction r = new IncAction();
2865 +        CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
2866 +        f.completeExceptionally(new CFException());
2867 +        checkCompletedWithWrappedCFException(g);
2868 +    }
2869 +
2870 +    /**
2871 +     * thenAcceptAsync result completes exceptionally if action does
2872 +     */
2873 +    public void testThenAcceptAsync3E() {
2874 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2875 +        FailingConsumer r = new FailingConsumer();
2876 +        CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
2877 +        f.complete(null);
2878 +        checkCompletedWithWrappedCFException(g);
2879 +    }
2880 +
2881 +    /**
2882 +     * thenAcceptAsync result completes exceptionally if source cancelled
2883 +     */
2884 +    public void testThenAcceptAsync4E() {
2885 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2886 +        IncAction r = new IncAction();
2887 +        CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
2888 +        assertTrue(f.cancel(true));
2889 +        checkCompletedWithWrappedCancellationException(g);
2890 +    }
2891 +
2892 +    /**
2893 +     * acceptEitherAsync result completes normally after normal
2894 +     * completion of sources
2895 +     */
2896 +    public void testAcceptEitherAsyncE() {
2897 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2898 +        CompletableFuture<Integer> f2 = new CompletableFuture<>();
2899 +        IncAction r = new IncAction();
2900 +        CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2901 +        f.complete(one);
2902 +        checkCompletedNormally(g, null);
2903 +        assertEquals(r.value, (Integer) 2);
2904 +
2905 +        r = new IncAction();
2906 +        f = new CompletableFuture<>();
2907 +        f.complete(one);
2908 +        f2 = new CompletableFuture<>();
2909 +        g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2910 +        checkCompletedNormally(g, null);
2911 +        assertEquals(r.value, (Integer) 2);
2912 +    }
2913 +
2914 +    /**
2915 +     * acceptEitherAsync result completes exceptionally after exceptional
2916 +     * completion of source
2917 +     */
2918 +    public void testAcceptEitherAsync2E() {
2919 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2920 +        CompletableFuture<Integer> f2 = new CompletableFuture<>();
2921 +        IncAction r = new IncAction();
2922 +        CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2923 +        f.completeExceptionally(new CFException());
2924 +        checkCompletedWithWrappedCFException(g);
2925 +
2926 +        r = new IncAction();
2927 +        f = new CompletableFuture<>();
2928 +        f2 = new CompletableFuture<>();
2929 +        f2.completeExceptionally(new CFException());
2930 +        g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2931 +        f.complete(one);
2932 +        checkCompletedWithWrappedCFException(g);
2933 +    }
2934 +
2935 +    /**
2936 +     * acceptEitherAsync result completes exceptionally if action does
2937 +     */
2938 +    public void testAcceptEitherAsync3E() {
2939 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2940 +        CompletableFuture<Integer> f2 = new CompletableFuture<>();
2941 +        FailingConsumer r = new FailingConsumer();
2942 +        CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2943 +        f.complete(one);
2944 +        checkCompletedWithWrappedCFException(g);
2945 +    }
2946 +
2947 +    /**
2948 +     * acceptEitherAsync result completes exceptionally if either
2949 +     * source cancelled
2950 +     */
2951 +    public void testAcceptEitherAsync4E() {
2952 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2953 +        CompletableFuture<Integer> f2 = new CompletableFuture<>();
2954 +        IncAction r = new IncAction();
2955 +        CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2956 +        assertTrue(f.cancel(true));
2957 +        checkCompletedWithWrappedCancellationException(g);
2958 +
2959 +        r = new IncAction();
2960 +        f = new CompletableFuture<>();
2961 +        f2 = new CompletableFuture<>();
2962 +        assertTrue(f2.cancel(true));
2963 +        g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2964 +        checkCompletedWithWrappedCancellationException(g);
2965 +    }
2966 +
2967 +    /**
2968 +     * runAfterEitherAsync result completes normally after normal
2969 +     * completion of sources
2970 +     */
2971 +    public void testRunAfterEitherAsyncE() {
2972 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2973 +        CompletableFuture<Integer> f2 = new CompletableFuture<>();
2974 +        Noop r = new Noop();
2975 +        CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2976 +        f.complete(one);
2977 +        checkCompletedNormally(g, null);
2978 +        assertTrue(r.ran);
2979 +
2980 +        r = new Noop();
2981 +        f = new CompletableFuture<>();
2982 +        f.complete(one);
2983 +        f2 = new CompletableFuture<>();
2984 +        g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2985 +        checkCompletedNormally(g, null);
2986 +        assertTrue(r.ran);
2987 +    }
2988 +
2989 +    /**
2990 +     * runAfterEitherAsync result completes exceptionally after exceptional
2991 +     * completion of source
2992 +     */
2993 +    public void testRunAfterEitherAsync2E() {
2994 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2995 +        CompletableFuture<Integer> f2 = new CompletableFuture<>();
2996 +        Noop r = new Noop();
2997 +        CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2998 +        f.completeExceptionally(new CFException());
2999 +        checkCompletedWithWrappedCFException(g);
3000 +
3001 +        r = new Noop();
3002 +        f = new CompletableFuture<>();
3003 +        f2 = new CompletableFuture<>();
3004 +        f2.completeExceptionally(new CFException());
3005 +        g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
3006 +        f.complete(one);
3007 +        checkCompletedWithWrappedCFException(g);
3008 +    }
3009 +
3010 +    /**
3011 +     * runAfterEitherAsync result completes exceptionally if action does
3012 +     */
3013 +    public void testRunAfterEitherAsync3E() {
3014 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3015 +        CompletableFuture<Integer> f2 = new CompletableFuture<>();
3016 +        FailingNoop r = new FailingNoop();
3017 +        CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
3018 +        f.complete(one);
3019 +        checkCompletedWithWrappedCFException(g);
3020 +    }
3021 +
3022 +    /**
3023 +     * runAfterEitherAsync result completes exceptionally if either
3024 +     * source cancelled
3025 +     */
3026 +    public void testRunAfterEitherAsync4E() {
3027 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3028 +        CompletableFuture<Integer> f2 = new CompletableFuture<>();
3029 +        Noop r = new Noop();
3030 +        CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
3031 +        assertTrue(f.cancel(true));
3032 +        checkCompletedWithWrappedCancellationException(g);
3033 +
3034 +        r = new Noop();
3035 +        f = new CompletableFuture<>();
3036 +        f2 = new CompletableFuture<>();
3037 +        assertTrue(f2.cancel(true));
3038 +        g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
3039 +        checkCompletedWithWrappedCancellationException(g);
3040 +    }
3041 +
3042 +    /**
3043 +     * thenComposeAsync result completes normally after normal
3044 +     * completion of source
3045 +     */
3046 +    public void testThenComposeAsyncE() {
3047 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3048 +        CompletableFutureInc r = new CompletableFutureInc();
3049 +        CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
3050 +        f.complete(one);
3051 +        checkCompletedNormally(g, two);
3052 +    }
3053 +
3054 +    /**
3055 +     * thenComposeAsync result completes exceptionally after
3056 +     * exceptional completion of source
3057 +     */
3058 +    public void testThenComposeAsync2E() {
3059 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3060 +        CompletableFutureInc r = new CompletableFutureInc();
3061 +        CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
3062 +        f.completeExceptionally(new CFException());
3063 +        checkCompletedWithWrappedCFException(g);
3064 +    }
3065 +
3066 +    /**
3067 +     * thenComposeAsync result completes exceptionally if action does
3068 +     */
3069 +    public void testThenComposeAsync3E() {
3070 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3071 +        FailingCompletableFutureFunction r = new FailingCompletableFutureFunction();
3072 +        CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
3073 +        f.complete(one);
3074 +        checkCompletedWithWrappedCFException(g);
3075 +    }
3076 +
3077 +    /**
3078 +     * thenComposeAsync result completes exceptionally if source cancelled
3079 +     */
3080 +    public void testThenComposeAsync4E() {
3081 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3082 +        CompletableFutureInc r = new CompletableFutureInc();
3083 +        CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
3084 +        assertTrue(f.cancel(true));
3085 +        checkCompletedWithWrappedCancellationException(g);
3086 +    }
3087 +
3088 +    // other static methods
3089 +
3090 +    /**
3091 +     * allOf(no component futures) returns a future completed normally
3092 +     * with the value null
3093 +     */
3094 +    public void testAllOf_empty() throws Exception {
3095 +        CompletableFuture<Void> f = CompletableFuture.allOf();
3096 +        checkCompletedNormally(f, null);
3097 +    }
3098 +
3099 +    /**
3100 +     * allOf returns a future completed normally with the value null
3101 +     * when all components complete normally
3102 +     */
3103 +    public void testAllOf_normal() throws Exception {
3104 +        for (int k = 1; k < 20; ++k) {
3105 +            CompletableFuture<Integer>[] fs = (CompletableFuture<Integer>[]) new CompletableFuture[k];
3106 +            for (int i = 0; i < k; ++i)
3107 +                fs[i] = new CompletableFuture<>();
3108 +            CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3109 +            for (int i = 0; i < k; ++i) {
3110 +                checkIncomplete(f);
3111 +                checkIncomplete(CompletableFuture.allOf(fs));
3112 +                fs[i].complete(one);
3113 +            }
3114 +            checkCompletedNormally(f, null);
3115 +            checkCompletedNormally(CompletableFuture.allOf(fs), null);
3116 +        }
3117 +    }
3118 +
3119 +    /**
3120 +     * anyOf(no component futures) returns an incomplete future
3121 +     */
3122 +    public void testAnyOf_empty() throws Exception {
3123 +        CompletableFuture<Object> f = CompletableFuture.anyOf();
3124 +        checkIncomplete(f);
3125 +    }
3126 +
3127 +    /**
3128 +     * anyOf returns a future completed normally with a value when
3129 +     * a component future does
3130 +     */
3131 +    public void testAnyOf_normal() throws Exception {
3132 +        for (int k = 0; k < 10; ++k) {
3133 +            CompletableFuture[] fs = new CompletableFuture[k];
3134 +            for (int i = 0; i < k; ++i)
3135 +                fs[i] = new CompletableFuture<>();
3136 +            CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3137 +            checkIncomplete(f);
3138 +            for (int i = 0; i < k; ++i) {
3139 +                fs[i].complete(one);
3140 +                checkCompletedNormally(f, one);
3141 +                checkCompletedNormally(CompletableFuture.anyOf(fs), one);
3142 +            }
3143 +        }
3144 +    }
3145 +
3146 +    /**
3147 +     * anyOf result completes exceptionally when any component does.
3148 +     */
3149 +    public void testAnyOf_exceptional() throws Exception {
3150 +        for (int k = 0; k < 10; ++k) {
3151 +            CompletableFuture[] fs = new CompletableFuture[k];
3152 +            for (int i = 0; i < k; ++i)
3153 +                fs[i] = new CompletableFuture<>();
3154 +            CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3155 +            checkIncomplete(f);
3156 +            for (int i = 0; i < k; ++i) {
3157 +                fs[i].completeExceptionally(new CFException());
3158 +                checkCompletedWithWrappedCFException(f);
3159 +                checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3160 +            }
3161 +        }
3162 +    }
3163 +
3164 +    /**
3165 +     * Completion methods throw NullPointerException with null arguments
3166 +     */
3167 +    public void testNPE() {
3168 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3169 +        CompletableFuture<Integer> g = new CompletableFuture<>();
3170 +        CompletableFuture<Integer> nullFuture = (CompletableFuture<Integer>)null;
3171 +        CompletableFuture<?> h;
3172 +        ThreadExecutor exec = new ThreadExecutor();
3173 +
3174 +        Runnable[] throwingActions = {
3175 +            () -> CompletableFuture.supplyAsync(null),
3176 +            () -> CompletableFuture.supplyAsync(null, exec),
3177 +            () -> CompletableFuture.supplyAsync(supplyOne, null),
3178 +
3179 +            () -> CompletableFuture.runAsync(null),
3180 +            () -> CompletableFuture.runAsync(null, exec),
3181 +            () -> CompletableFuture.runAsync(() -> {}, null),
3182 +
3183 +            () -> f.completeExceptionally(null),
3184 +
3185 +            () -> f.thenApply(null),
3186 +            () -> f.thenApplyAsync(null),
3187 +            () -> f.thenApplyAsync((x) -> x, null),
3188 +            () -> f.thenApplyAsync(null, exec),
3189 +
3190 +            () -> f.thenAccept(null),
3191 +            () -> f.thenAcceptAsync(null),
3192 +            () -> f.thenAcceptAsync((x) -> {} , null),
3193 +            () -> f.thenAcceptAsync(null, exec),
3194 +
3195 +            () -> f.thenRun(null),
3196 +            () -> f.thenRunAsync(null),
3197 +            () -> f.thenRunAsync(() -> {} , null),
3198 +            () -> f.thenRunAsync(null, exec),
3199 +
3200 +            () -> f.thenCombine(g, null),
3201 +            () -> f.thenCombineAsync(g, null),
3202 +            () -> f.thenCombineAsync(g, null, exec),
3203 +            () -> f.thenCombine(nullFuture, (x, y) -> x),
3204 +            () -> f.thenCombineAsync(nullFuture, (x, y) -> x),
3205 +            () -> f.thenCombineAsync(nullFuture, (x, y) -> x, exec),
3206 +            () -> f.thenCombineAsync(g, (x, y) -> x, null),
3207 +
3208 +            () -> f.thenAcceptBoth(g, null),
3209 +            () -> f.thenAcceptBothAsync(g, null),
3210 +            () -> f.thenAcceptBothAsync(g, null, exec),
3211 +            () -> f.thenAcceptBoth(nullFuture, (x, y) -> {}),
3212 +            () -> f.thenAcceptBothAsync(nullFuture, (x, y) -> {}),
3213 +            () -> f.thenAcceptBothAsync(nullFuture, (x, y) -> {}, exec),
3214 +            () -> f.thenAcceptBothAsync(g, (x, y) -> {}, null),
3215 +
3216 +            () -> f.runAfterBoth(g, null),
3217 +            () -> f.runAfterBothAsync(g, null),
3218 +            () -> f.runAfterBothAsync(g, null, exec),
3219 +            () -> f.runAfterBoth(nullFuture, () -> {}),
3220 +            () -> f.runAfterBothAsync(nullFuture, () -> {}),
3221 +            () -> f.runAfterBothAsync(nullFuture, () -> {}, exec),
3222 +            () -> f.runAfterBothAsync(g, () -> {}, null),
3223 +
3224 +            () -> f.applyToEither(g, null),
3225 +            () -> f.applyToEitherAsync(g, null),
3226 +            () -> f.applyToEitherAsync(g, null, exec),
3227 +            () -> f.applyToEither(nullFuture, (x) -> x),
3228 +            () -> f.applyToEitherAsync(nullFuture, (x) -> x),
3229 +            () -> f.applyToEitherAsync(nullFuture, (x) -> x, exec),
3230 +            () -> f.applyToEitherAsync(g, (x) -> x, null),
3231 +
3232 +            () -> f.acceptEither(g, null),
3233 +            () -> f.acceptEitherAsync(g, null),
3234 +            () -> f.acceptEitherAsync(g, null, exec),
3235 +            () -> f.acceptEither(nullFuture, (x) -> {}),
3236 +            () -> f.acceptEitherAsync(nullFuture, (x) -> {}),
3237 +            () -> f.acceptEitherAsync(nullFuture, (x) -> {}, exec),
3238 +            () -> f.acceptEitherAsync(g, (x) -> {}, null),
3239 +
3240 +            () -> f.runAfterEither(g, null),
3241 +            () -> f.runAfterEitherAsync(g, null),
3242 +            () -> f.runAfterEitherAsync(g, null, exec),
3243 +            () -> f.runAfterEither(nullFuture, () -> {}),
3244 +            () -> f.runAfterEitherAsync(nullFuture, () -> {}),
3245 +            () -> f.runAfterEitherAsync(nullFuture, () -> {}, exec),
3246 +            () -> f.runAfterEitherAsync(g, () -> {}, null),
3247 +
3248 +            () -> f.thenCompose(null),
3249 +            () -> f.thenComposeAsync(null),
3250 +            () -> f.thenComposeAsync(new CompletableFutureInc(), null),
3251 +            () -> f.thenComposeAsync(null, exec),
3252 +
3253 +            () -> f.exceptionally(null),
3254 +
3255 +            () -> f.handle(null),
3256 +
3257 +            () -> CompletableFuture.allOf((CompletableFuture<?>)null),
3258 +            () -> CompletableFuture.allOf((CompletableFuture<?>[])null),
3259 +            () -> CompletableFuture.allOf(f, null),
3260 +            () -> CompletableFuture.allOf(null, f),
3261 +
3262 +            () -> CompletableFuture.anyOf((CompletableFuture<?>)null),
3263 +            () -> CompletableFuture.anyOf((CompletableFuture<?>[])null),
3264 +            () -> CompletableFuture.anyOf(f, null),
3265 +            () -> CompletableFuture.anyOf(null, f),
3266 +
3267 +            () -> f.obtrudeException(null),
3268 +        };
3269 +
3270 +        assertThrows(NullPointerException.class, throwingActions);
3271 +        assertEquals(0, exec.count.get());
3272 +    }
3273 +
3274 +    /**
3275 +     * toCompletableFuture returns this CompletableFuture.
3276 +     */
3277 +    public void testToCompletableFuture() {
3278 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3279 +        assertSame(f, f.toCompletableFuture());
3280 +    }
3281 +
3282 +    /**
3283 +     * whenComplete action executes on normal completion, propagating
3284 +     * source result.
3285 +     */
3286 +    public void testWhenComplete1() {
3287 +        final AtomicInteger a = new AtomicInteger();
3288 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3289 +        CompletableFuture<Integer> g =
3290 +            f.whenComplete((Integer x, Throwable t) -> a.getAndIncrement());
3291 +        f.complete(three);
3292 +        checkCompletedNormally(f, three);
3293 +        checkCompletedNormally(g, three);
3294 +        assertEquals(a.get(), 1);
3295 +    }
3296 +
3297 +    /**
3298 +     * whenComplete action executes on exceptional completion, propagating
3299 +     * source result.
3300 +     */
3301 +    public void testWhenComplete2() {
3302 +        final AtomicInteger a = new AtomicInteger();
3303 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3304 +        CompletableFuture<Integer> g =
3305 +            f.whenComplete((Integer x, Throwable t) -> a.getAndIncrement());
3306 +        f.completeExceptionally(new CFException());
3307 +        assertTrue(f.isCompletedExceptionally());
3308 +        assertTrue(g.isCompletedExceptionally());
3309 +        assertEquals(a.get(), 1);
3310 +    }
3311 +
3312 +    /**
3313 +     * If a whenComplete action throws an exception when triggered by
3314 +     * a normal completion, it completes exceptionally
3315 +     */
3316 +    public void testWhenComplete3() {
3317 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3318 +        CompletableFuture<Integer> g =
3319 +            f.whenComplete((Integer x, Throwable t) ->
3320 +                           { throw new CFException(); } );
3321 +        f.complete(three);
3322 +        checkCompletedNormally(f, three);
3323 +        assertTrue(g.isCompletedExceptionally());
3324 +        checkCompletedWithWrappedCFException(g);
3325 +    }
3326 +
3327 +    /**
3328 +     * whenCompleteAsync action executes on normal completion, propagating
3329 +     * source result.
3330 +     */
3331 +    public void testWhenCompleteAsync1() {
3332 +        final AtomicInteger a = new AtomicInteger();
3333 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3334 +        CompletableFuture<Integer> g =
3335 +            f.whenCompleteAsync((Integer x, Throwable t) -> a.getAndIncrement());
3336 +        f.complete(three);
3337 +        checkCompletedNormally(f, three);
3338 +        checkCompletedNormally(g, three);
3339 +        assertEquals(a.get(), 1);
3340 +    }
3341 +
3342 +    /**
3343 +     * whenCompleteAsync action executes on exceptional completion, propagating
3344 +     * source result.
3345 +     */
3346 +    public void testWhenCompleteAsync2() {
3347 +        final AtomicInteger a = new AtomicInteger();
3348 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3349 +        CompletableFuture<Integer> g =
3350 +            f.whenCompleteAsync((Integer x, Throwable t) -> a.getAndIncrement());
3351 +        f.completeExceptionally(new CFException());
3352 +        checkCompletedWithWrappedCFException(f);
3353 +        checkCompletedWithWrappedCFException(g);
3354 +    }
3355 +
3356 +    /**
3357 +     * If a whenCompleteAsync action throws an exception when
3358 +     * triggered by a normal completion, it completes exceptionally
3359 +     */
3360 +    public void testWhenCompleteAsync3() {
3361 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3362 +        CompletableFuture<Integer> g =
3363 +            f.whenCompleteAsync((Integer x, Throwable t) ->
3364 +                           { throw new CFException(); } );
3365 +        f.complete(three);
3366 +        checkCompletedNormally(f, three);
3367 +        checkCompletedWithWrappedCFException(g);
3368 +    }
3369 +
3370 +    /**
3371 +     * whenCompleteAsync action executes on normal completion, propagating
3372 +     * source result.
3373 +     */
3374 +    public void testWhenCompleteAsync1e() {
3375 +        final AtomicInteger a = new AtomicInteger();
3376 +        ThreadExecutor exec = new ThreadExecutor();
3377 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3378 +        CompletableFuture<Integer> g =
3379 +            f.whenCompleteAsync((Integer x, Throwable t) -> a.getAndIncrement(),
3380 +                                exec);
3381 +        f.complete(three);
3382 +        checkCompletedNormally(f, three);
3383 +        checkCompletedNormally(g, three);
3384 +        assertEquals(a.get(), 1);
3385 +    }
3386 +
3387 +    /**
3388 +     * whenCompleteAsync action executes on exceptional completion, propagating
3389 +     * source result.
3390 +     */
3391 +    public void testWhenCompleteAsync2e() {
3392 +        final AtomicInteger a = new AtomicInteger();
3393 +        ThreadExecutor exec = new ThreadExecutor();
3394 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3395 +        CompletableFuture<Integer> g =
3396 +            f.whenCompleteAsync((Integer x, Throwable t) -> a.getAndIncrement(),
3397 +                                exec);
3398 +        f.completeExceptionally(new CFException());
3399 +        checkCompletedWithWrappedCFException(f);
3400 +        checkCompletedWithWrappedCFException(g);
3401 +    }
3402 +
3403 +    /**
3404 +     * If a whenCompleteAsync action throws an exception when triggered
3405 +     * by a normal completion, it completes exceptionally
3406 +     */
3407 +    public void testWhenCompleteAsync3e() {
3408 +        ThreadExecutor exec = new ThreadExecutor();
3409 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3410 +        CompletableFuture<Integer> g =
3411 +            f.whenCompleteAsync((Integer x, Throwable t) ->
3412 +                                { throw new CFException(); },
3413 +                                exec);
3414 +        f.complete(three);
3415 +        checkCompletedNormally(f, three);
3416 +        checkCompletedWithWrappedCFException(g);
3417 +    }
3418 +
3419 +    /**
3420 +     * handleAsync action completes normally with function value on
3421 +     * either normal or exceptional completion of source
3422 +     */
3423 +    public void testHandleAsync() {
3424 +        CompletableFuture<Integer> f, g;
3425 +        IntegerHandler r;
3426 +
3427 +        f = new CompletableFuture<>();
3428 +        g = f.handleAsync(r = new IntegerHandler());
3429 +        assertFalse(r.ran);
3430 +        f.completeExceptionally(new CFException());
3431 +        checkCompletedWithWrappedCFException(f);
3432 +        checkCompletedNormally(g, three);
3433 +        assertTrue(r.ran);
3434 +
3435 +        f = new CompletableFuture<>();
3436 +        g = f.handleAsync(r = new IntegerHandler());
3437 +        assertFalse(r.ran);
3438 +        f.completeExceptionally(new CFException());
3439 +        checkCompletedWithWrappedCFException(f);
3440 +        checkCompletedNormally(g, three);
3441 +        assertTrue(r.ran);
3442 +
3443 +        f = new CompletableFuture<>();
3444 +        g = f.handleAsync(r = new IntegerHandler());
3445 +        assertFalse(r.ran);
3446 +        f.complete(one);
3447 +        checkCompletedNormally(f, one);
3448 +        checkCompletedNormally(g, two);
3449 +        assertTrue(r.ran);
3450 +
3451 +        f = new CompletableFuture<>();
3452 +        g = f.handleAsync(r = new IntegerHandler());
3453 +        assertFalse(r.ran);
3454 +        f.complete(one);
3455 +        checkCompletedNormally(f, one);
3456 +        checkCompletedNormally(g, two);
3457 +        assertTrue(r.ran);
3458 +    }
3459 +
3460 +    /**
3461 +     * handleAsync action with Executor completes normally with
3462 +     * function value on either normal or exceptional completion of
3463 +     * source
3464 +     */
3465 +    public void testHandleAsync2() {
3466 +        CompletableFuture<Integer> f, g;
3467 +        ThreadExecutor exec = new ThreadExecutor();
3468 +        IntegerHandler r;
3469 +
3470 +        f = new CompletableFuture<>();
3471 +        g = f.handleAsync(r = new IntegerHandler(), exec);
3472 +        assertFalse(r.ran);
3473 +        f.completeExceptionally(new CFException());
3474 +        checkCompletedWithWrappedCFException(f);
3475 +        checkCompletedNormally(g, three);
3476 +        assertTrue(r.ran);
3477 +
3478 +        f = new CompletableFuture<>();
3479 +        g = f.handleAsync(r = new IntegerHandler(), exec);
3480 +        assertFalse(r.ran);
3481 +        f.completeExceptionally(new CFException());
3482 +        checkCompletedWithWrappedCFException(f);
3483 +        checkCompletedNormally(g, three);
3484 +        assertTrue(r.ran);
3485 +
3486 +        f = new CompletableFuture<>();
3487 +        g = f.handleAsync(r = new IntegerHandler(), exec);
3488 +        assertFalse(r.ran);
3489 +        f.complete(one);
3490 +        checkCompletedNormally(f, one);
3491 +        checkCompletedNormally(g, two);
3492 +        assertTrue(r.ran);
3493 +
3494 +        f = new CompletableFuture<>();
3495 +        g = f.handleAsync(r = new IntegerHandler(), exec);
3496 +        assertFalse(r.ran);
3497 +        f.complete(one);
3498 +        checkCompletedNormally(f, one);
3499 +        checkCompletedNormally(g, two);
3500 +        assertTrue(r.ran);
3501 +    }
3502 +
3503   }

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