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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 1.47 by jsr166, Mon Jun 2 18:21:34 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.obtrudeValue(null);
251 +        checkCompletedNormally(f, null);
252 +        f = new CompletableFuture<>();
253 +        f.completeExceptionally(new CFException());
254 +        f.obtrudeValue(four);
255 +        checkCompletedNormally(f, four);
256 +    }
257 +
258 +    /**
259 +     * obtrudeException forces completion with given exception
260 +     */
261 +    public void testObtrudeException() {
262 +        CompletableFuture<Integer> f = new CompletableFuture<>();
263 +        checkIncomplete(f);
264 +        f.complete(one);
265 +        checkCompletedNormally(f, one);
266 +        f.obtrudeException(new CFException());
267 +        checkCompletedWithWrappedCFException(f);
268 +        f = new CompletableFuture<>();
269 +        f.obtrudeException(new CFException());
270 +        checkCompletedWithWrappedCFException(f);
271 +        f = new CompletableFuture<>();
272 +        f.completeExceptionally(new CFException());
273 +        f.obtrudeValue(four);
274 +        checkCompletedNormally(f, four);
275 +        f.obtrudeException(new CFException());
276 +        checkCompletedWithWrappedCFException(f);
277 +    }
278 +
279 +    /**
280 +     * getNumberOfDependents returns number of dependent tasks
281 +     */
282 +    public void testGetNumberOfDependents() {
283 +        CompletableFuture<Integer> f = new CompletableFuture<>();
284 +        assertEquals(0, f.getNumberOfDependents());
285 +        CompletableFuture g = f.thenRun(new Noop());
286 +        assertEquals(1, f.getNumberOfDependents());
287 +        assertEquals(0, g.getNumberOfDependents());
288 +        CompletableFuture h = f.thenRun(new Noop());
289 +        assertEquals(2, f.getNumberOfDependents());
290 +        f.complete(1);
291 +        checkCompletedNormally(g, null);
292 +        assertEquals(0, f.getNumberOfDependents());
293 +        assertEquals(0, g.getNumberOfDependents());
294 +    }
295 +
296 +    /**
297 +     * toString indicates current completion state
298 +     */
299      public void testToString() {
300          CompletableFuture<String> f;
301 <        assertTrue(new CompletableFuture<String>().toString()
34 <                   .contains("[Not completed]"));
301 >
302          f = new CompletableFuture<String>();
303 +        assertTrue(f.toString().contains("[Not completed]"));
304 +
305          f.complete("foo");
306          assertTrue(f.toString().contains("[Completed normally]"));
307 +
308          f = new CompletableFuture<String>();
309          f.completeExceptionally(new IndexOutOfBoundsException());
310          assertTrue(f.toString().contains("[Completed exceptionally]"));
311      }
312 +
313 +    /**
314 +     * completedFuture returns a completed CompletableFuture with given value
315 +     */
316 +    public void testCompletedFuture() {
317 +        CompletableFuture<String> f = CompletableFuture.completedFuture("test");
318 +        checkCompletedNormally(f, "test");
319 +    }
320 +
321 +    // Choose non-commutative actions for better coverage
322 +
323 +    // A non-commutative function that handles and produces null values as well.
324 +    static Integer subtract(Integer x, Integer y) {
325 +        return (x == null && y == null) ? null :
326 +            ((x == null) ? 42 : x.intValue())
327 +            - ((y == null) ? 99 : y.intValue());
328 +    }
329 +
330 +    // A function that handles and produces null values as well.
331 +    static Integer inc(Integer x) {
332 +        return (x == null) ? null : x + 1;
333 +    }
334 +
335 +    static final Supplier<Integer> supplyOne =
336 +        () -> Integer.valueOf(1);
337 +    static final Function<Integer, Integer> inc =
338 +        (Integer x) -> Integer.valueOf(x.intValue() + 1);
339 +    static final BiFunction<Integer, Integer, Integer> subtract =
340 +        (Integer x, Integer y) -> subtract(x, y);
341 +    static final class IncAction implements Consumer<Integer> {
342 +        int invocationCount = 0;
343 +        Integer value;
344 +        public void accept(Integer x) {
345 +            invocationCount++;
346 +            value = inc(x);
347 +        }
348 +    }
349 +    static final class IncFunction implements Function<Integer,Integer> {
350 +        int invocationCount = 0;
351 +        Integer value;
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 void accept(Integer x, Integer y) {
362 +            invocationCount++;
363 +            value = subtract(x, y);
364 +        }
365 +    }
366 +    static final class SubtractFunction implements BiFunction<Integer, Integer, Integer> {
367 +        int invocationCount = 0;
368 +        Integer value;
369 +        // Check this action was invoked exactly once when result is computed.
370 +        public Integer apply(Integer x, Integer y) {
371 +            invocationCount++;
372 +            return value = subtract(x, y);
373 +        }
374 +    }
375 +    static final class Noop implements Runnable {
376 +        int invocationCount = 0;
377 +        public void run() {
378 +            invocationCount++;
379 +        }
380 +    }
381 +
382 +    static final class FailingSupplier implements Supplier<Integer> {
383 +        int invocationCount = 0;
384 +        public Integer get() {
385 +            invocationCount++;
386 +            throw new CFException();
387 +        }
388 +    }
389 +    static final class FailingConsumer implements Consumer<Integer> {
390 +        int invocationCount = 0;
391 +        public void accept(Integer x) {
392 +            invocationCount++;
393 +            throw new CFException();
394 +        }
395 +    }
396 +    static final class FailingBiConsumer implements BiConsumer<Integer, Integer> {
397 +        int invocationCount = 0;
398 +        public void accept(Integer x, Integer y) {
399 +            invocationCount++;
400 +            throw new CFException();
401 +        }
402 +    }
403 +    static final class FailingFunction implements Function<Integer, Integer> {
404 +        int invocationCount = 0;
405 +        public Integer apply(Integer x) {
406 +            invocationCount++;
407 +            throw new CFException();
408 +        }
409 +    }
410 +    static final class FailingBiFunction implements BiFunction<Integer, Integer, Integer> {
411 +        int invocationCount = 0;
412 +        public Integer apply(Integer x, Integer y) {
413 +            invocationCount++;
414 +            throw new CFException();
415 +        }
416 +    }
417 +    static final class FailingNoop implements Runnable {
418 +        int invocationCount = 0;
419 +        public void run() {
420 +            invocationCount++;
421 +            throw new CFException();
422 +        }
423 +    }
424 +
425 +    static final class CompletableFutureInc
426 +        implements Function<Integer, CompletableFuture<Integer>> {
427 +        int invocationCount = 0;
428 +        public CompletableFuture<Integer> apply(Integer x) {
429 +            invocationCount++;
430 +            CompletableFuture<Integer> f = new CompletableFuture<>();
431 +            f.complete(inc(x));
432 +            return f;
433 +        }
434 +    }
435 +
436 +    static final class FailingCompletableFutureFunction
437 +        implements Function<Integer, CompletableFuture<Integer>> {
438 +        int invocationCount = 0;
439 +        public CompletableFuture<Integer> apply(Integer x) {
440 +            invocationCount++;
441 +            throw new CFException();
442 +        }
443 +    }
444 +
445 +    // Used for explicit executor tests
446 +    static final class ThreadExecutor implements Executor {
447 +        AtomicInteger count = new AtomicInteger(0);
448 +
449 +        public void execute(Runnable r) {
450 +            count.getAndIncrement();
451 +            new Thread(r).start();
452 +        }
453 +    }
454 +
455 +    /**
456 +     * Permits the testing of parallel code for the 3 different
457 +     * execution modes without repeating all the testing code.
458 +     */
459 +    enum ExecutionMode {
460 +        DEFAULT {
461 +            public <T> CompletableFuture<Void> thenRun
462 +                (CompletableFuture<T> f, Runnable a) {
463 +                return f.thenRun(a);
464 +            }
465 +            public <T> CompletableFuture<Void> thenAccept
466 +                (CompletableFuture<T> f, Consumer<? super T> a) {
467 +                return f.thenAccept(a);
468 +            }
469 +            public <T,U> CompletableFuture<U> thenApply
470 +                (CompletableFuture<T> f, Function<? super T,U> a) {
471 +                return f.thenApply(a);
472 +            }
473 +            public <T,U> CompletableFuture<U> thenCompose
474 +                (CompletableFuture<T> f,
475 +                 Function<? super T,? extends CompletionStage<U>> a) {
476 +                return f.thenCompose(a);
477 +            }
478 +            public <T,U> CompletableFuture<U> handle
479 +                (CompletableFuture<T> f,
480 +                 BiFunction<? super T,Throwable,? extends U> a) {
481 +                return f.handle(a);
482 +            }
483 +            public <T> CompletableFuture<T> whenComplete
484 +                (CompletableFuture<T> f,
485 +                 BiConsumer<? super T,? super Throwable> a) {
486 +                return f.whenComplete(a);
487 +            }
488 +            public <T,U> CompletableFuture<Void> runAfterBoth
489 +                (CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) {
490 +                return f.runAfterBoth(g, a);
491 +            }
492 +            public <T,U> CompletableFuture<Void> thenAcceptBoth
493 +                (CompletableFuture<T> f,
494 +                 CompletionStage<? extends U> g,
495 +                 BiConsumer<? super T,? super U> a) {
496 +                return f.thenAcceptBoth(g, a);
497 +            }
498 +            public <T,U,V> CompletableFuture<V> thenCombine
499 +                (CompletableFuture<T> f,
500 +                 CompletionStage<? extends U> g,
501 +                 BiFunction<? super T,? super U,? extends V> a) {
502 +                return f.thenCombine(g, a);
503 +            }
504 +            public <T> CompletableFuture<Void> runAfterEither
505 +                (CompletableFuture<T> f,
506 +                 CompletionStage<?> g,
507 +                 java.lang.Runnable a) {
508 +                return f.runAfterEither(g, a);
509 +            }
510 +            public <T> CompletableFuture<Void> acceptEither
511 +                (CompletableFuture<T> f,
512 +                 CompletionStage<? extends T> g,
513 +                 Consumer<? super T> a) {
514 +                return f.acceptEither(g, a);
515 +            }
516 +            public <T,U> CompletableFuture<U> applyToEither
517 +                (CompletableFuture<T> f,
518 +                 CompletionStage<? extends T> g,
519 +                 Function<? super T,U> a) {
520 +                return f.applyToEither(g, a);
521 +            }
522 +        },
523 +
524 +        DEFAULT_ASYNC {
525 +            public <T> CompletableFuture<Void> thenRun
526 +                (CompletableFuture<T> f, Runnable a) {
527 +                return f.thenRunAsync(a);
528 +            }
529 +            public <T> CompletableFuture<Void> thenAccept
530 +                (CompletableFuture<T> f, Consumer<? super T> a) {
531 +                return f.thenAcceptAsync(a);
532 +            }
533 +            public <T,U> CompletableFuture<U> thenApply
534 +                (CompletableFuture<T> f, Function<? super T,U> a) {
535 +                return f.thenApplyAsync(a);
536 +            }
537 +            public <T,U> CompletableFuture<U> thenCompose
538 +                (CompletableFuture<T> f,
539 +                 Function<? super T,? extends CompletionStage<U>> a) {
540 +                return f.thenComposeAsync(a);
541 +            }
542 +            public <T,U> CompletableFuture<U> handle
543 +                (CompletableFuture<T> f,
544 +                 BiFunction<? super T,Throwable,? extends U> a) {
545 +                return f.handleAsync(a);
546 +            }
547 +            public <T> CompletableFuture<T> whenComplete
548 +                (CompletableFuture<T> f,
549 +                 BiConsumer<? super T,? super Throwable> a) {
550 +                return f.whenCompleteAsync(a);
551 +            }
552 +            public <T,U> CompletableFuture<Void> runAfterBoth
553 +                (CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) {
554 +                return f.runAfterBothAsync(g, a);
555 +            }
556 +            public <T,U> CompletableFuture<Void> thenAcceptBoth
557 +                (CompletableFuture<T> f,
558 +                 CompletionStage<? extends U> g,
559 +                 BiConsumer<? super T,? super U> a) {
560 +                return f.thenAcceptBothAsync(g, a);
561 +            }
562 +            public <T,U,V> CompletableFuture<V> thenCombine
563 +                (CompletableFuture<T> f,
564 +                 CompletionStage<? extends U> g,
565 +                 BiFunction<? super T,? super U,? extends V> a) {
566 +                return f.thenCombineAsync(g, a);
567 +            }
568 +            public <T> CompletableFuture<Void> runAfterEither
569 +                (CompletableFuture<T> f,
570 +                 CompletionStage<?> g,
571 +                 java.lang.Runnable a) {
572 +                return f.runAfterEitherAsync(g, a);
573 +            }
574 +            public <T> CompletableFuture<Void> acceptEither
575 +                (CompletableFuture<T> f,
576 +                 CompletionStage<? extends T> g,
577 +                 Consumer<? super T> a) {
578 +                return f.acceptEitherAsync(g, a);
579 +            }
580 +            public <T,U> CompletableFuture<U> applyToEither
581 +                (CompletableFuture<T> f,
582 +                 CompletionStage<? extends T> g,
583 +                 Function<? super T,U> a) {
584 +                return f.applyToEitherAsync(g, a);
585 +            }
586 +        },
587 +
588 +        EXECUTOR {
589 +            public <T> CompletableFuture<Void> thenRun
590 +                (CompletableFuture<T> f, Runnable a) {
591 +                return f.thenRunAsync(a, new ThreadExecutor());
592 +            }
593 +            public <T> CompletableFuture<Void> thenAccept
594 +                (CompletableFuture<T> f, Consumer<? super T> a) {
595 +                return f.thenAcceptAsync(a, new ThreadExecutor());
596 +            }
597 +            public <T,U> CompletableFuture<U> thenApply
598 +                (CompletableFuture<T> f, Function<? super T,U> a) {
599 +                return f.thenApplyAsync(a, new ThreadExecutor());
600 +            }
601 +            public <T,U> CompletableFuture<U> thenCompose
602 +                (CompletableFuture<T> f,
603 +                 Function<? super T,? extends CompletionStage<U>> a) {
604 +                return f.thenComposeAsync(a, new ThreadExecutor());
605 +            }
606 +            public <T,U> CompletableFuture<U> handle
607 +                (CompletableFuture<T> f,
608 +                 BiFunction<? super T,Throwable,? extends U> a) {
609 +                return f.handleAsync(a, new ThreadExecutor());
610 +            }
611 +            public <T> CompletableFuture<T> whenComplete
612 +                (CompletableFuture<T> f,
613 +                 BiConsumer<? super T,? super Throwable> a) {
614 +                return f.whenCompleteAsync(a, new ThreadExecutor());
615 +            }
616 +            public <T,U> CompletableFuture<Void> runAfterBoth
617 +                (CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) {
618 +                return f.runAfterBothAsync(g, a, new ThreadExecutor());
619 +            }
620 +            public <T,U> CompletableFuture<Void> thenAcceptBoth
621 +                (CompletableFuture<T> f,
622 +                 CompletionStage<? extends U> g,
623 +                 BiConsumer<? super T,? super U> a) {
624 +                return f.thenAcceptBothAsync(g, a, new ThreadExecutor());
625 +            }
626 +            public <T,U,V> CompletableFuture<V> thenCombine
627 +                (CompletableFuture<T> f,
628 +                 CompletionStage<? extends U> g,
629 +                 BiFunction<? super T,? super U,? extends V> a) {
630 +                return f.thenCombineAsync(g, a, new ThreadExecutor());
631 +            }
632 +            public <T> CompletableFuture<Void> runAfterEither
633 +                (CompletableFuture<T> f,
634 +                 CompletionStage<?> g,
635 +                 java.lang.Runnable a) {
636 +                return f.runAfterEitherAsync(g, a, new ThreadExecutor());
637 +            }
638 +            public <T> CompletableFuture<Void> acceptEither
639 +                (CompletableFuture<T> f,
640 +                 CompletionStage<? extends T> g,
641 +                 Consumer<? super T> a) {
642 +                return f.acceptEitherAsync(g, a, new ThreadExecutor());
643 +            }
644 +            public <T,U> CompletableFuture<U> applyToEither
645 +                (CompletableFuture<T> f,
646 +                 CompletionStage<? extends T> g,
647 +                 Function<? super T,U> a) {
648 +                return f.applyToEitherAsync(g, a, new ThreadExecutor());
649 +            }
650 +        };
651 +
652 +        public abstract <T> CompletableFuture<Void> thenRun
653 +            (CompletableFuture<T> f, Runnable a);
654 +        public abstract <T> CompletableFuture<Void> thenAccept
655 +            (CompletableFuture<T> f, Consumer<? super T> a);
656 +        public abstract <T,U> CompletableFuture<U> thenApply
657 +            (CompletableFuture<T> f, Function<? super T,U> a);
658 +        public abstract <T,U> CompletableFuture<U> thenCompose
659 +            (CompletableFuture<T> f,
660 +             Function<? super T,? extends CompletionStage<U>> a);
661 +        public abstract <T,U> CompletableFuture<U> handle
662 +            (CompletableFuture<T> f,
663 +             BiFunction<? super T,Throwable,? extends U> a);
664 +        public abstract <T> CompletableFuture<T> whenComplete
665 +            (CompletableFuture<T> f,
666 +             BiConsumer<? super T,? super Throwable> a);
667 +        public abstract <T,U> CompletableFuture<Void> runAfterBoth
668 +            (CompletableFuture<T> f, CompletableFuture<U> g, Runnable a);
669 +        public abstract <T,U> CompletableFuture<Void> thenAcceptBoth
670 +            (CompletableFuture<T> f,
671 +             CompletionStage<? extends U> g,
672 +             BiConsumer<? super T,? super U> a);
673 +        public abstract <T,U,V> CompletableFuture<V> thenCombine
674 +            (CompletableFuture<T> f,
675 +             CompletionStage<? extends U> g,
676 +             BiFunction<? super T,? super U,? extends V> a);
677 +        public abstract <T> CompletableFuture<Void> runAfterEither
678 +            (CompletableFuture<T> f,
679 +             CompletionStage<?> g,
680 +             java.lang.Runnable a);
681 +        public abstract <T> CompletableFuture<Void> acceptEither
682 +            (CompletableFuture<T> f,
683 +             CompletionStage<? extends T> g,
684 +             Consumer<? super T> a);
685 +        public abstract <T,U> CompletableFuture<U> applyToEither
686 +            (CompletableFuture<T> f,
687 +             CompletionStage<? extends T> g,
688 +             Function<? super T,U> a);
689 +    }
690 +
691 +    /**
692 +     * exceptionally action is not invoked when source completes
693 +     * normally, and source result is propagated
694 +     */
695 +    public void testExceptionally_normalCompletion() {
696 +        for (boolean createIncomplete : new boolean[] { true, false })
697 +        for (Integer v1 : new Integer[] { 1, null })
698 +    {
699 +        final AtomicInteger a = new AtomicInteger(0);
700 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
701 +        if (!createIncomplete) f.complete(v1);
702 +        final CompletableFuture<Integer> g = f.exceptionally
703 +            ((Throwable t) -> {
704 +                // Should not be called
705 +                a.getAndIncrement();
706 +                throw new AssertionError();
707 +            });
708 +        if (createIncomplete) f.complete(v1);
709 +
710 +        checkCompletedNormally(g, v1);
711 +        checkCompletedNormally(f, v1);
712 +        assertEquals(0, a.get());
713 +    }}
714 +
715 +
716 +    /**
717 +     * exceptionally action completes with function value on source
718 +     * exception
719 +     */
720 +    public void testExceptionally_exceptionalCompletion() {
721 +        for (boolean createIncomplete : new boolean[] { true, false })
722 +        for (Integer v1 : new Integer[] { 1, null })
723 +    {
724 +        final AtomicInteger a = new AtomicInteger(0);
725 +        final CFException ex = new CFException();
726 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
727 +        if (!createIncomplete) f.completeExceptionally(ex);
728 +        final CompletableFuture<Integer> g = f.exceptionally
729 +            ((Throwable t) -> {
730 +                threadAssertSame(t, ex);
731 +                a.getAndIncrement();
732 +                return v1;
733 +            });
734 +        if (createIncomplete) f.completeExceptionally(ex);
735 +
736 +        checkCompletedNormally(g, v1);
737 +        assertEquals(1, a.get());
738 +    }}
739 +
740 +    public void testExceptionally_exceptionalCompletionActionFailed() {
741 +        for (boolean createIncomplete : new boolean[] { true, false })
742 +        for (Integer v1 : new Integer[] { 1, null })
743 +    {
744 +        final AtomicInteger a = new AtomicInteger(0);
745 +        final CFException ex1 = new CFException();
746 +        final CFException ex2 = new CFException();
747 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
748 +        if (!createIncomplete) f.completeExceptionally(ex1);
749 +        final CompletableFuture<Integer> g = f.exceptionally
750 +            ((Throwable t) -> {
751 +                threadAssertSame(t, ex1);
752 +                a.getAndIncrement();
753 +                throw ex2;
754 +            });
755 +        if (createIncomplete) f.completeExceptionally(ex1);
756 +
757 +        checkCompletedWithWrappedCFException(g, ex2);
758 +        assertEquals(1, a.get());
759 +    }}
760 +
761 +    /**
762 +     * handle action completes normally with function value on normal
763 +     * completion of source
764 +     */
765 +    public void testHandle_normalCompletion() {
766 +        for (ExecutionMode m : ExecutionMode.values())
767 +        for (boolean createIncomplete : new boolean[] { true, false })
768 +        for (Integer v1 : new Integer[] { 1, null })
769 +    {
770 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
771 +        final AtomicInteger a = new AtomicInteger(0);
772 +        if (!createIncomplete) f.complete(v1);
773 +        final CompletableFuture<Integer> g = m.handle
774 +            (f,
775 +             (Integer x, Throwable t) -> {
776 +                threadAssertSame(x, v1);
777 +                threadAssertNull(t);
778 +                a.getAndIncrement();
779 +                return inc(v1);
780 +            });
781 +        if (createIncomplete) f.complete(v1);
782 +
783 +        checkCompletedNormally(g, inc(v1));
784 +        checkCompletedNormally(f, v1);
785 +        assertEquals(1, a.get());
786 +    }}
787 +
788 +    /**
789 +     * handle action completes normally with function value on
790 +     * exceptional completion of source
791 +     */
792 +    public void testHandle_exceptionalCompletion() {
793 +        for (ExecutionMode m : ExecutionMode.values())
794 +        for (boolean createIncomplete : new boolean[] { true, false })
795 +        for (Integer v1 : new Integer[] { 1, null })
796 +    {
797 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
798 +        final AtomicInteger a = new AtomicInteger(0);
799 +        final CFException ex = new CFException();
800 +        if (!createIncomplete) f.completeExceptionally(ex);
801 +        final CompletableFuture<Integer> g = m.handle
802 +            (f,
803 +             (Integer x, Throwable t) -> {
804 +                threadAssertNull(x);
805 +                threadAssertSame(t, ex);
806 +                a.getAndIncrement();
807 +                return v1;
808 +            });
809 +        if (createIncomplete) f.completeExceptionally(ex);
810 +
811 +        checkCompletedNormally(g, v1);
812 +        checkCompletedWithWrappedCFException(f, ex);
813 +        assertEquals(1, a.get());
814 +    }}
815 +
816 +    /**
817 +     * handle action completes normally with function value on
818 +     * cancelled source
819 +     */
820 +    public void testHandle_sourceCancelled() {
821 +        for (ExecutionMode m : ExecutionMode.values())
822 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
823 +        for (boolean createIncomplete : new boolean[] { true, false })
824 +        for (Integer v1 : new Integer[] { 1, null })
825 +    {
826 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
827 +        final AtomicInteger a = new AtomicInteger(0);
828 +        if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
829 +        final CompletableFuture<Integer> g = m.handle
830 +            (f,
831 +             (Integer x, Throwable t) -> {
832 +                threadAssertNull(x);
833 +                threadAssertTrue(t instanceof CancellationException);
834 +                a.getAndIncrement();
835 +                return v1;
836 +            });
837 +        if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
838 +
839 +        checkCompletedNormally(g, v1);
840 +        checkCancelled(f);
841 +        assertEquals(1, a.get());
842 +    }}
843 +
844 +    /**
845 +     * handle result completes exceptionally if action does
846 +     */
847 +    public void testHandle_sourceFailedActionFailed() {
848 +        for (ExecutionMode m : ExecutionMode.values())
849 +        for (boolean createIncomplete : new boolean[] { true, false })
850 +    {
851 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
852 +        final AtomicInteger a = new AtomicInteger(0);
853 +        final CFException ex1 = new CFException();
854 +        final CFException ex2 = new CFException();
855 +        if (!createIncomplete) f.completeExceptionally(ex1);
856 +        final CompletableFuture<Integer> g = m.handle
857 +            (f,
858 +             (Integer x, Throwable t) -> {
859 +                threadAssertNull(x);
860 +                threadAssertSame(ex1, t);
861 +                a.getAndIncrement();
862 +                throw ex2;
863 +            });
864 +        if (createIncomplete) f.completeExceptionally(ex1);
865 +
866 +        checkCompletedWithWrappedCFException(g, ex2);
867 +        checkCompletedWithWrappedCFException(f, ex1);
868 +        assertEquals(1, a.get());
869 +    }}
870 +
871 +    public void testHandle_sourceCompletedNormallyActionFailed() {
872 +        for (ExecutionMode m : ExecutionMode.values())
873 +        for (boolean createIncomplete : new boolean[] { true, false })
874 +        for (Integer v1 : new Integer[] { 1, null })
875 +    {
876 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
877 +        final AtomicInteger a = new AtomicInteger(0);
878 +        final CFException ex = new CFException();
879 +        if (!createIncomplete) f.complete(v1);
880 +        final CompletableFuture<Integer> g = m.handle
881 +            (f,
882 +             (Integer x, Throwable t) -> {
883 +                threadAssertSame(x, v1);
884 +                threadAssertNull(t);
885 +                a.getAndIncrement();
886 +                throw ex;
887 +            });
888 +        if (createIncomplete) f.complete(v1);
889 +
890 +        checkCompletedWithWrappedCFException(g, ex);
891 +        checkCompletedNormally(f, v1);
892 +        assertEquals(1, a.get());
893 +    }}
894 +
895 +    /**
896 +     * runAsync completes after running Runnable
897 +     */
898 +    public void testRunAsync() {
899 +        Noop r = new Noop();
900 +        CompletableFuture<Void> f = CompletableFuture.runAsync(r);
901 +        assertNull(f.join());
902 +        assertEquals(1, r.invocationCount);
903 +        checkCompletedNormally(f, null);
904 +    }
905 +
906 +    /**
907 +     * runAsync with executor completes after running Runnable
908 +     */
909 +    public void testRunAsync2() {
910 +        Noop r = new Noop();
911 +        ThreadExecutor exec = new ThreadExecutor();
912 +        CompletableFuture<Void> f = CompletableFuture.runAsync(r, exec);
913 +        assertNull(f.join());
914 +        assertEquals(1, r.invocationCount);
915 +        checkCompletedNormally(f, null);
916 +        assertEquals(1, exec.count.get());
917 +    }
918 +
919 +    /**
920 +     * failing runAsync completes exceptionally after running Runnable
921 +     */
922 +    public void testRunAsync3() {
923 +        FailingNoop r = new FailingNoop();
924 +        CompletableFuture<Void> f = CompletableFuture.runAsync(r);
925 +        checkCompletedWithWrappedCFException(f);
926 +        assertEquals(1, r.invocationCount);
927 +    }
928 +
929 +    /**
930 +     * supplyAsync completes with result of supplier
931 +     */
932 +    public void testSupplyAsync() {
933 +        CompletableFuture<Integer> f;
934 +        f = CompletableFuture.supplyAsync(supplyOne);
935 +        assertEquals(f.join(), one);
936 +        checkCompletedNormally(f, one);
937 +    }
938 +
939 +    /**
940 +     * supplyAsync with executor completes with result of supplier
941 +     */
942 +    public void testSupplyAsync2() {
943 +        CompletableFuture<Integer> f;
944 +        f = CompletableFuture.supplyAsync(supplyOne, new ThreadExecutor());
945 +        assertEquals(f.join(), one);
946 +        checkCompletedNormally(f, one);
947 +    }
948 +
949 +    /**
950 +     * Failing supplyAsync completes exceptionally
951 +     */
952 +    public void testSupplyAsync3() {
953 +        FailingSupplier r = new FailingSupplier();
954 +        CompletableFuture<Integer> f = CompletableFuture.supplyAsync(r);
955 +        checkCompletedWithWrappedCFException(f);
956 +        assertEquals(1, r.invocationCount);
957 +    }
958 +
959 +    // seq completion methods
960 +
961 +    /**
962 +     * thenRun result completes normally after normal completion of source
963 +     */
964 +    public void testThenRun() {
965 +        CompletableFuture<Integer> f;
966 +        CompletableFuture<Void> g;
967 +        Noop r;
968 +
969 +        f = new CompletableFuture<>();
970 +        g = f.thenRun(r = new Noop());
971 +        f.complete(null);
972 +        checkCompletedNormally(g, null);
973 +        assertEquals(1, r.invocationCount);
974 +
975 +        f = new CompletableFuture<>();
976 +        f.complete(null);
977 +        g = f.thenRun(r = new Noop());
978 +        checkCompletedNormally(g, null);
979 +        assertEquals(1, r.invocationCount);
980 +    }
981 +
982 +    /**
983 +     * thenRun result completes exceptionally after exceptional
984 +     * completion of source
985 +     */
986 +    public void testThenRun2() {
987 +        CompletableFuture<Integer> f;
988 +        CompletableFuture<Void> g;
989 +        Noop r;
990 +
991 +        f = new CompletableFuture<>();
992 +        g = f.thenRun(r = new Noop());
993 +        f.completeExceptionally(new CFException());
994 +        checkCompletedWithWrappedCFException(g);
995 +        assertEquals(0, r.invocationCount);
996 +
997 +        f = new CompletableFuture<>();
998 +        f.completeExceptionally(new CFException());
999 +        g = f.thenRun(r = new Noop());
1000 +        checkCompletedWithWrappedCFException(g);
1001 +        assertEquals(0, r.invocationCount);
1002 +    }
1003 +
1004 +    /**
1005 +     * thenRun result completes exceptionally if action does
1006 +     */
1007 +    public void testThenRun3() {
1008 +        CompletableFuture<Integer> f;
1009 +        CompletableFuture<Void> g;
1010 +        FailingNoop r;
1011 +
1012 +        f = new CompletableFuture<>();
1013 +        g = f.thenRun(r = new FailingNoop());
1014 +        f.complete(null);
1015 +        checkCompletedWithWrappedCFException(g);
1016 +
1017 +        f = new CompletableFuture<>();
1018 +        f.complete(null);
1019 +        g = f.thenRun(r = new FailingNoop());
1020 +        checkCompletedWithWrappedCFException(g);
1021 +    }
1022 +
1023 +    /**
1024 +     * thenRun result completes exceptionally if source cancelled
1025 +     */
1026 +    public void testThenRun4() {
1027 +        CompletableFuture<Integer> f;
1028 +        CompletableFuture<Void> g;
1029 +        Noop r;
1030 +
1031 +        f = new CompletableFuture<>();
1032 +        g = f.thenRun(r = new Noop());
1033 +        assertTrue(f.cancel(true));
1034 +        checkCompletedWithWrappedCancellationException(g);
1035 +
1036 +        f = new CompletableFuture<>();
1037 +        assertTrue(f.cancel(true));
1038 +        g = f.thenRun(r = new Noop());
1039 +        checkCompletedWithWrappedCancellationException(g);
1040 +    }
1041 +
1042 +    /**
1043 +     * thenApply result completes normally after normal completion of source
1044 +     */
1045 +    public void testThenApply() {
1046 +        CompletableFuture<Integer> f = new CompletableFuture<>();
1047 +        CompletableFuture<Integer> g = f.thenApply(inc);
1048 +        f.complete(one);
1049 +        checkCompletedNormally(g, two);
1050 +    }
1051 +
1052 +    /**
1053 +     * thenApply result completes exceptionally after exceptional
1054 +     * completion of source
1055 +     */
1056 +    public void testThenApply2() {
1057 +        CompletableFuture<Integer> f = new CompletableFuture<>();
1058 +        CompletableFuture<Integer> g = f.thenApply(inc);
1059 +        f.completeExceptionally(new CFException());
1060 +        checkCompletedWithWrappedCFException(g);
1061 +    }
1062 +
1063 +    /**
1064 +     * thenApply result completes exceptionally if action does
1065 +     */
1066 +    public void testThenApply3() {
1067 +        CompletableFuture<Integer> f = new CompletableFuture<>();
1068 +        CompletableFuture<Integer> g = f.thenApply(new FailingFunction());
1069 +        f.complete(one);
1070 +        checkCompletedWithWrappedCFException(g);
1071 +    }
1072 +
1073 +    /**
1074 +     * thenApply result completes exceptionally if source cancelled
1075 +     */
1076 +    public void testThenApply4() {
1077 +        CompletableFuture<Integer> f = new CompletableFuture<>();
1078 +        CompletableFuture<Integer> g = f.thenApply(inc);
1079 +        assertTrue(f.cancel(true));
1080 +        checkCompletedWithWrappedCancellationException(g);
1081 +    }
1082 +
1083 +    /**
1084 +     * thenAccept result completes normally after normal completion of source
1085 +     */
1086 +    public void testThenAccept() {
1087 +        CompletableFuture<Integer> f = new CompletableFuture<>();
1088 +        IncAction r = new IncAction();
1089 +        CompletableFuture<Void> g = f.thenAccept(r);
1090 +        f.complete(one);
1091 +        checkCompletedNormally(g, null);
1092 +        assertEquals(r.value, (Integer) 2);
1093 +    }
1094 +
1095 +    /**
1096 +     * thenAccept result completes exceptionally after exceptional
1097 +     * completion of source
1098 +     */
1099 +    public void testThenAccept2() {
1100 +        CompletableFuture<Integer> f = new CompletableFuture<>();
1101 +        IncAction r = new IncAction();
1102 +        CompletableFuture<Void> g = f.thenAccept(r);
1103 +        f.completeExceptionally(new CFException());
1104 +        checkCompletedWithWrappedCFException(g);
1105 +    }
1106 +
1107 +    /**
1108 +     * thenAccept result completes exceptionally if action does
1109 +     */
1110 +    public void testThenAccept3() {
1111 +        CompletableFuture<Integer> f = new CompletableFuture<>();
1112 +        FailingConsumer r = new FailingConsumer();
1113 +        CompletableFuture<Void> g = f.thenAccept(r);
1114 +        f.complete(one);
1115 +        checkCompletedWithWrappedCFException(g);
1116 +        assertEquals(1, r.invocationCount);
1117 +    }
1118 +
1119 +    /**
1120 +     * thenAccept result completes exceptionally if source cancelled
1121 +     */
1122 +    public void testThenAccept4() {
1123 +        CompletableFuture<Integer> f = new CompletableFuture<>();
1124 +        IncAction r = new IncAction();
1125 +        CompletableFuture<Void> g = f.thenAccept(r);
1126 +        assertTrue(f.cancel(true));
1127 +        checkCompletedWithWrappedCancellationException(g);
1128 +    }
1129 +
1130 +    /**
1131 +     * thenCombine result completes normally after normal completion
1132 +     * of sources
1133 +     */
1134 +    public void testThenCombine_normalCompletion1() {
1135 +        for (boolean createIncomplete : new boolean[] { true, false })
1136 +        for (boolean fFirst : new boolean[] { true, false })
1137 +        for (ExecutionMode m : ExecutionMode.values())
1138 +        for (Integer v1 : new Integer[] { 1, null })
1139 +        for (Integer v2 : new Integer[] { 2, null })
1140 +    {
1141 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1142 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1143 +        final SubtractFunction r = new SubtractFunction();
1144 +        CompletableFuture<Integer> h = null;
1145 +        if (createIncomplete) h = m.thenCombine(f, g, r);
1146 +
1147 +        if (fFirst)
1148 +            f.complete(v1);
1149 +        else
1150 +            g.complete(v2);
1151 +        if (createIncomplete) checkIncomplete(h);
1152 +        assertEquals(0, r.invocationCount);
1153 +        if (!fFirst)
1154 +            f.complete(v1);
1155 +        else
1156 +            g.complete(v2);
1157 +        if (!createIncomplete) h = m.thenCombine(f, g, r);
1158 +
1159 +        checkCompletedNormally(h, subtract(v1, v2));
1160 +        checkCompletedNormally(f, v1);
1161 +        checkCompletedNormally(g, v2);
1162 +        assertEquals(1, r.invocationCount);
1163 +    }}
1164 +
1165 +    /**
1166 +     * thenCombine result completes exceptionally after exceptional
1167 +     * completion of either source
1168 +     */
1169 +    public void testThenCombine_exceptionalCompletion1() {
1170 +        for (ExecutionMode m : ExecutionMode.values())
1171 +        for (Integer v1 : new Integer[] { 1, null })
1172 +    {
1173 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1174 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1175 +        final SubtractFunction r = new SubtractFunction();
1176 +        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1177 +        final CFException ex = new CFException();
1178 +
1179 +        f.completeExceptionally(ex);
1180 +        checkIncomplete(h);
1181 +        g.complete(v1);
1182 +
1183 +        checkCompletedWithWrappedCFException(h, ex);
1184 +        checkCompletedWithWrappedCFException(f, ex);
1185 +        assertEquals(0, r.invocationCount);
1186 +        checkCompletedNormally(g, v1);
1187 +    }}
1188 +
1189 +    public void testThenCombine_exceptionalCompletion2() {
1190 +        for (ExecutionMode m : ExecutionMode.values())
1191 +        for (Integer v1 : new Integer[] { 1, null })
1192 +    {
1193 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1194 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1195 +        final SubtractFunction r = new SubtractFunction();
1196 +        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1197 +        final CFException ex = new CFException();
1198 +
1199 +        g.completeExceptionally(ex);
1200 +        checkIncomplete(h);
1201 +        f.complete(v1);
1202 +
1203 +        checkCompletedWithWrappedCFException(h, ex);
1204 +        checkCompletedWithWrappedCFException(g, ex);
1205 +        assertEquals(0, r.invocationCount);
1206 +        checkCompletedNormally(f, v1);
1207 +    }}
1208 +
1209 +    public void testThenCombine_exceptionalCompletion3() {
1210 +        for (ExecutionMode m : ExecutionMode.values())
1211 +        for (Integer v1 : new Integer[] { 1, null })
1212 +    {
1213 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1214 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1215 +        final SubtractFunction r = new SubtractFunction();
1216 +        final CFException ex = new CFException();
1217 +
1218 +        g.completeExceptionally(ex);
1219 +        f.complete(v1);
1220 +        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1221 +
1222 +        checkCompletedWithWrappedCFException(h, ex);
1223 +        checkCompletedWithWrappedCFException(g, ex);
1224 +        assertEquals(0, r.invocationCount);
1225 +        checkCompletedNormally(f, v1);
1226 +    }}
1227 +
1228 +    public void testThenCombine_exceptionalCompletion4() {
1229 +        for (ExecutionMode m : ExecutionMode.values())
1230 +        for (Integer v1 : new Integer[] { 1, null })
1231 +    {
1232 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1233 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1234 +        final SubtractFunction r = new SubtractFunction();
1235 +        final CFException ex = new CFException();
1236 +
1237 +        f.completeExceptionally(ex);
1238 +        g.complete(v1);
1239 +        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1240 +
1241 +        checkCompletedWithWrappedCFException(h, ex);
1242 +        checkCompletedWithWrappedCFException(f, ex);
1243 +        assertEquals(0, r.invocationCount);
1244 +        checkCompletedNormally(g, v1);
1245 +    }}
1246 +
1247 +    /**
1248 +     * thenCombine result completes exceptionally if action does
1249 +     */
1250 +    public void testThenCombine_actionFailed1() {
1251 +        for (ExecutionMode m : ExecutionMode.values())
1252 +        for (Integer v1 : new Integer[] { 1, null })
1253 +        for (Integer v2 : new Integer[] { 2, null })
1254 +    {
1255 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1256 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1257 +        final FailingBiFunction r = new FailingBiFunction();
1258 +        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1259 +
1260 +        f.complete(v1);
1261 +        checkIncomplete(h);
1262 +        g.complete(v2);
1263 +
1264 +        checkCompletedWithWrappedCFException(h);
1265 +        checkCompletedNormally(f, v1);
1266 +        checkCompletedNormally(g, v2);
1267 +    }}
1268 +
1269 +    public void testThenCombine_actionFailed2() {
1270 +        for (ExecutionMode m : ExecutionMode.values())
1271 +        for (Integer v1 : new Integer[] { 1, null })
1272 +        for (Integer v2 : new Integer[] { 2, null })
1273 +    {
1274 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1275 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1276 +        final FailingBiFunction r = new FailingBiFunction();
1277 +        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1278 +
1279 +        g.complete(v2);
1280 +        checkIncomplete(h);
1281 +        f.complete(v1);
1282 +
1283 +        checkCompletedWithWrappedCFException(h);
1284 +        checkCompletedNormally(f, v1);
1285 +        checkCompletedNormally(g, v2);
1286 +    }}
1287 +
1288 +    /**
1289 +     * thenCombine result completes exceptionally if either source cancelled
1290 +     */
1291 +    public void testThenCombine_sourceCancelled1() {
1292 +        for (ExecutionMode m : ExecutionMode.values())
1293 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1294 +        for (Integer v1 : new Integer[] { 1, null })
1295 +    {
1296 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1297 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1298 +        final SubtractFunction r = new SubtractFunction();
1299 +        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1300 +
1301 +        assertTrue(f.cancel(mayInterruptIfRunning));
1302 +        checkIncomplete(h);
1303 +        g.complete(v1);
1304 +
1305 +        checkCompletedWithWrappedCancellationException(h);
1306 +        checkCancelled(f);
1307 +        assertEquals(0, r.invocationCount);
1308 +        checkCompletedNormally(g, v1);
1309 +    }}
1310 +
1311 +    public void testThenCombine_sourceCancelled2() {
1312 +        for (ExecutionMode m : ExecutionMode.values())
1313 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1314 +        for (Integer v1 : new Integer[] { 1, null })
1315 +    {
1316 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1317 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1318 +        final SubtractFunction r = new SubtractFunction();
1319 +        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1320 +
1321 +        assertTrue(g.cancel(mayInterruptIfRunning));
1322 +        checkIncomplete(h);
1323 +        f.complete(v1);
1324 +
1325 +        checkCompletedWithWrappedCancellationException(h);
1326 +        checkCancelled(g);
1327 +        assertEquals(0, r.invocationCount);
1328 +        checkCompletedNormally(f, v1);
1329 +    }}
1330 +
1331 +    public void testThenCombine_sourceCancelled3() {
1332 +        for (ExecutionMode m : ExecutionMode.values())
1333 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1334 +        for (Integer v1 : new Integer[] { 1, null })
1335 +    {
1336 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1337 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1338 +        final SubtractFunction r = new SubtractFunction();
1339 +
1340 +        assertTrue(g.cancel(mayInterruptIfRunning));
1341 +        f.complete(v1);
1342 +        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1343 +
1344 +        checkCompletedWithWrappedCancellationException(h);
1345 +        checkCancelled(g);
1346 +        assertEquals(0, r.invocationCount);
1347 +        checkCompletedNormally(f, v1);
1348 +    }}
1349 +
1350 +    public void testThenCombine_sourceCancelled4() {
1351 +        for (ExecutionMode m : ExecutionMode.values())
1352 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1353 +        for (Integer v1 : new Integer[] { 1, null })
1354 +    {
1355 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1356 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1357 +        final SubtractFunction r = new SubtractFunction();
1358 +
1359 +        assertTrue(f.cancel(mayInterruptIfRunning));
1360 +        g.complete(v1);
1361 +        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1362 +
1363 +        checkCompletedWithWrappedCancellationException(h);
1364 +        checkCancelled(f);
1365 +        assertEquals(0, r.invocationCount);
1366 +        checkCompletedNormally(g, v1);
1367 +    }}
1368 +
1369 +    /**
1370 +     * thenAcceptBoth result completes normally after normal
1371 +     * completion of sources
1372 +     */
1373 +    public void testThenAcceptBoth_normalCompletion1() {
1374 +        for (ExecutionMode m : ExecutionMode.values())
1375 +        for (Integer v1 : new Integer[] { 1, null })
1376 +        for (Integer v2 : new Integer[] { 2, null })
1377 +    {
1378 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1379 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1380 +        final SubtractAction r = new SubtractAction();
1381 +        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1382 +
1383 +        f.complete(v1);
1384 +        checkIncomplete(h);
1385 +        assertEquals(0, r.invocationCount);
1386 +        g.complete(v2);
1387 +
1388 +        checkCompletedNormally(h, null);
1389 +        assertEquals(subtract(v1, v2), r.value);
1390 +        checkCompletedNormally(f, v1);
1391 +        checkCompletedNormally(g, v2);
1392 +    }}
1393 +
1394 +    public void testThenAcceptBoth_normalCompletion2() {
1395 +        for (ExecutionMode m : ExecutionMode.values())
1396 +        for (Integer v1 : new Integer[] { 1, null })
1397 +        for (Integer v2 : new Integer[] { 2, null })
1398 +    {
1399 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1400 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1401 +        final SubtractAction r = new SubtractAction();
1402 +        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1403 +
1404 +        g.complete(v2);
1405 +        checkIncomplete(h);
1406 +        assertEquals(0, r.invocationCount);
1407 +        f.complete(v1);
1408 +
1409 +        checkCompletedNormally(h, null);
1410 +        assertEquals(subtract(v1, v2), r.value);
1411 +        checkCompletedNormally(f, v1);
1412 +        checkCompletedNormally(g, v2);
1413 +    }}
1414 +
1415 +    public void testThenAcceptBoth_normalCompletion3() {
1416 +        for (ExecutionMode m : ExecutionMode.values())
1417 +        for (Integer v1 : new Integer[] { 1, null })
1418 +        for (Integer v2 : new Integer[] { 2, null })
1419 +    {
1420 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1421 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1422 +        final SubtractAction r = new SubtractAction();
1423 +
1424 +        g.complete(v2);
1425 +        f.complete(v1);
1426 +        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1427 +
1428 +        checkCompletedNormally(h, null);
1429 +        assertEquals(subtract(v1, v2), r.value);
1430 +        checkCompletedNormally(f, v1);
1431 +        checkCompletedNormally(g, v2);
1432 +    }}
1433 +
1434 +    public void testThenAcceptBoth_normalCompletion4() {
1435 +        for (ExecutionMode m : ExecutionMode.values())
1436 +        for (Integer v1 : new Integer[] { 1, null })
1437 +        for (Integer v2 : new Integer[] { 2, null })
1438 +    {
1439 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1440 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1441 +        final SubtractAction r = new SubtractAction();
1442 +
1443 +        f.complete(v1);
1444 +        g.complete(v2);
1445 +        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1446 +
1447 +        checkCompletedNormally(h, null);
1448 +        assertEquals(subtract(v1, v2), r.value);
1449 +        checkCompletedNormally(f, v1);
1450 +        checkCompletedNormally(g, v2);
1451 +    }}
1452 +
1453 +    /**
1454 +     * thenAcceptBoth result completes exceptionally after exceptional
1455 +     * completion of either source
1456 +     */
1457 +    public void testThenAcceptBoth_exceptionalCompletion1() {
1458 +        for (ExecutionMode m : ExecutionMode.values())
1459 +        for (Integer v1 : new Integer[] { 1, null })
1460 +    {
1461 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1462 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1463 +        final SubtractAction r = new SubtractAction();
1464 +        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1465 +        final CFException ex = new CFException();
1466 +
1467 +        f.completeExceptionally(ex);
1468 +        checkIncomplete(h);
1469 +        g.complete(v1);
1470 +
1471 +        checkCompletedWithWrappedCFException(h, ex);
1472 +        checkCompletedWithWrappedCFException(f, ex);
1473 +        assertEquals(0, r.invocationCount);
1474 +        checkCompletedNormally(g, v1);
1475 +    }}
1476 +
1477 +    public void testThenAcceptBoth_exceptionalCompletion2() {
1478 +        for (ExecutionMode m : ExecutionMode.values())
1479 +        for (Integer v1 : new Integer[] { 1, null })
1480 +    {
1481 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1482 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1483 +        final SubtractAction r = new SubtractAction();
1484 +        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1485 +        final CFException ex = new CFException();
1486 +
1487 +        g.completeExceptionally(ex);
1488 +        checkIncomplete(h);
1489 +        f.complete(v1);
1490 +
1491 +        checkCompletedWithWrappedCFException(h, ex);
1492 +        checkCompletedWithWrappedCFException(g, ex);
1493 +        assertEquals(0, r.invocationCount);
1494 +        checkCompletedNormally(f, v1);
1495 +    }}
1496 +
1497 +    public void testThenAcceptBoth_exceptionalCompletion3() {
1498 +        for (ExecutionMode m : ExecutionMode.values())
1499 +        for (Integer v1 : new Integer[] { 1, null })
1500 +    {
1501 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1502 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1503 +        final SubtractAction r = new SubtractAction();
1504 +        final CFException ex = new CFException();
1505 +
1506 +        g.completeExceptionally(ex);
1507 +        f.complete(v1);
1508 +        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1509 +
1510 +        checkCompletedWithWrappedCFException(h, ex);
1511 +        checkCompletedWithWrappedCFException(g, ex);
1512 +        assertEquals(0, r.invocationCount);
1513 +        checkCompletedNormally(f, v1);
1514 +    }}
1515 +
1516 +    public void testThenAcceptBoth_exceptionalCompletion4() {
1517 +        for (ExecutionMode m : ExecutionMode.values())
1518 +        for (Integer v1 : new Integer[] { 1, null })
1519 +    {
1520 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1521 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1522 +        final SubtractAction r = new SubtractAction();
1523 +        final CFException ex = new CFException();
1524 +
1525 +        f.completeExceptionally(ex);
1526 +        g.complete(v1);
1527 +        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1528 +
1529 +        checkCompletedWithWrappedCFException(h, ex);
1530 +        checkCompletedWithWrappedCFException(f, ex);
1531 +        assertEquals(0, r.invocationCount);
1532 +        checkCompletedNormally(g, v1);
1533 +    }}
1534 +
1535 +    /**
1536 +     * thenAcceptBoth result completes exceptionally if action does
1537 +     */
1538 +    public void testThenAcceptBoth_actionFailed1() {
1539 +        for (ExecutionMode m : ExecutionMode.values())
1540 +        for (Integer v1 : new Integer[] { 1, null })
1541 +        for (Integer v2 : new Integer[] { 2, null })
1542 +    {
1543 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1544 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1545 +        final FailingBiConsumer r = new FailingBiConsumer();
1546 +        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1547 +
1548 +        f.complete(v1);
1549 +        checkIncomplete(h);
1550 +        g.complete(v2);
1551 +
1552 +        checkCompletedWithWrappedCFException(h);
1553 +        checkCompletedNormally(f, v1);
1554 +        checkCompletedNormally(g, v2);
1555 +    }}
1556 +
1557 +    public void testThenAcceptBoth_actionFailed2() {
1558 +        for (ExecutionMode m : ExecutionMode.values())
1559 +        for (Integer v1 : new Integer[] { 1, null })
1560 +        for (Integer v2 : new Integer[] { 2, null })
1561 +    {
1562 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1563 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1564 +        final FailingBiConsumer r = new FailingBiConsumer();
1565 +        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1566 +
1567 +        g.complete(v2);
1568 +        checkIncomplete(h);
1569 +        f.complete(v1);
1570 +
1571 +        checkCompletedWithWrappedCFException(h);
1572 +        checkCompletedNormally(f, v1);
1573 +        checkCompletedNormally(g, v2);
1574 +    }}
1575 +
1576 +    /**
1577 +     * thenAcceptBoth result completes exceptionally if either source cancelled
1578 +     */
1579 +    public void testThenAcceptBoth_sourceCancelled1() {
1580 +        for (ExecutionMode m : ExecutionMode.values())
1581 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1582 +        for (Integer v1 : new Integer[] { 1, null })
1583 +    {
1584 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1585 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1586 +        final SubtractAction r = new SubtractAction();
1587 +        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1588 +
1589 +        assertTrue(f.cancel(mayInterruptIfRunning));
1590 +        checkIncomplete(h);
1591 +        g.complete(v1);
1592 +
1593 +        checkCompletedWithWrappedCancellationException(h);
1594 +        checkCancelled(f);
1595 +        assertEquals(0, r.invocationCount);
1596 +        checkCompletedNormally(g, v1);
1597 +    }}
1598 +
1599 +    public void testThenAcceptBoth_sourceCancelled2() {
1600 +        for (ExecutionMode m : ExecutionMode.values())
1601 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1602 +        for (Integer v1 : new Integer[] { 1, null })
1603 +    {
1604 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1605 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1606 +        final SubtractAction r = new SubtractAction();
1607 +        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1608 +
1609 +        assertTrue(g.cancel(mayInterruptIfRunning));
1610 +        checkIncomplete(h);
1611 +        f.complete(v1);
1612 +
1613 +        checkCompletedWithWrappedCancellationException(h);
1614 +        checkCancelled(g);
1615 +        assertEquals(0, r.invocationCount);
1616 +        checkCompletedNormally(f, v1);
1617 +    }}
1618 +
1619 +    public void testThenAcceptBoth_sourceCancelled3() {
1620 +        for (ExecutionMode m : ExecutionMode.values())
1621 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1622 +        for (Integer v1 : new Integer[] { 1, null })
1623 +    {
1624 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1625 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1626 +        final SubtractAction r = new SubtractAction();
1627 +
1628 +        assertTrue(g.cancel(mayInterruptIfRunning));
1629 +        f.complete(v1);
1630 +        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1631 +
1632 +        checkCompletedWithWrappedCancellationException(h);
1633 +        checkCancelled(g);
1634 +        assertEquals(0, r.invocationCount);
1635 +        checkCompletedNormally(f, v1);
1636 +    }}
1637 +
1638 +    public void testThenAcceptBoth_sourceCancelled4() {
1639 +        for (ExecutionMode m : ExecutionMode.values())
1640 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1641 +        for (Integer v1 : new Integer[] { 1, null })
1642 +    {
1643 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1644 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1645 +        final SubtractAction r = new SubtractAction();
1646 +
1647 +        assertTrue(f.cancel(mayInterruptIfRunning));
1648 +        g.complete(v1);
1649 +        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1650 +
1651 +        checkCompletedWithWrappedCancellationException(h);
1652 +        checkCancelled(f);
1653 +        assertEquals(0, r.invocationCount);
1654 +        checkCompletedNormally(g, v1);
1655 +    }}
1656 +
1657 +    /**
1658 +     * runAfterBoth result completes normally after normal
1659 +     * completion of sources
1660 +     */
1661 +    public void testRunAfterBoth_normalCompletion1() {
1662 +        for (ExecutionMode m : ExecutionMode.values())
1663 +        for (Integer v1 : new Integer[] { 1, null })
1664 +        for (Integer v2 : new Integer[] { 2, null })
1665 +    {
1666 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1667 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1668 +        final Noop r = new Noop();
1669 +        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1670 +
1671 +        f.complete(v1);
1672 +        checkIncomplete(h);
1673 +        assertEquals(0, r.invocationCount);
1674 +        g.complete(v2);
1675 +
1676 +        checkCompletedNormally(h, null);
1677 +        assertEquals(1, r.invocationCount);
1678 +        checkCompletedNormally(f, v1);
1679 +        checkCompletedNormally(g, v2);
1680 +    }}
1681 +
1682 +    public void testRunAfterBoth_normalCompletion2() {
1683 +        for (ExecutionMode m : ExecutionMode.values())
1684 +        for (Integer v1 : new Integer[] { 1, null })
1685 +        for (Integer v2 : new Integer[] { 2, null })
1686 +    {
1687 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1688 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1689 +        final Noop r = new Noop();
1690 +        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1691 +
1692 +        g.complete(v2);
1693 +        checkIncomplete(h);
1694 +        assertEquals(0, r.invocationCount);
1695 +        f.complete(v1);
1696 +
1697 +        checkCompletedNormally(h, null);
1698 +        assertEquals(1, r.invocationCount);
1699 +        checkCompletedNormally(f, v1);
1700 +        checkCompletedNormally(g, v2);
1701 +    }}
1702 +
1703 +    public void testRunAfterBoth_normalCompletion3() {
1704 +        for (ExecutionMode m : ExecutionMode.values())
1705 +        for (Integer v1 : new Integer[] { 1, null })
1706 +        for (Integer v2 : new Integer[] { 2, null })
1707 +    {
1708 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1709 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1710 +        final Noop r = new Noop();
1711 +
1712 +        g.complete(v2);
1713 +        f.complete(v1);
1714 +        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1715 +
1716 +        checkCompletedNormally(h, null);
1717 +        assertEquals(1, r.invocationCount);
1718 +        checkCompletedNormally(f, v1);
1719 +        checkCompletedNormally(g, v2);
1720 +    }}
1721 +
1722 +    public void testRunAfterBoth_normalCompletion4() {
1723 +        for (ExecutionMode m : ExecutionMode.values())
1724 +        for (Integer v1 : new Integer[] { 1, null })
1725 +        for (Integer v2 : new Integer[] { 2, null })
1726 +    {
1727 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1728 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1729 +        final Noop r = new Noop();
1730 +
1731 +        f.complete(v1);
1732 +        g.complete(v2);
1733 +        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1734 +
1735 +        checkCompletedNormally(h, null);
1736 +        assertEquals(1, r.invocationCount);
1737 +        checkCompletedNormally(f, v1);
1738 +        checkCompletedNormally(g, v2);
1739 +    }}
1740 +
1741 +    /**
1742 +     * runAfterBoth result completes exceptionally after exceptional
1743 +     * completion of either source
1744 +     */
1745 +    public void testRunAfterBoth_exceptionalCompletion1() {
1746 +        for (ExecutionMode m : ExecutionMode.values())
1747 +        for (Integer v1 : new Integer[] { 1, null })
1748 +    {
1749 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1750 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1751 +        final Noop r = new Noop();
1752 +        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1753 +        final CFException ex = new CFException();
1754 +
1755 +        f.completeExceptionally(ex);
1756 +        checkIncomplete(h);
1757 +        g.complete(v1);
1758 +
1759 +        checkCompletedWithWrappedCFException(h, ex);
1760 +        checkCompletedWithWrappedCFException(f, ex);
1761 +        assertEquals(0, r.invocationCount);
1762 +        checkCompletedNormally(g, v1);
1763 +    }}
1764 +
1765 +    public void testRunAfterBoth_exceptionalCompletion2() {
1766 +        for (ExecutionMode m : ExecutionMode.values())
1767 +        for (Integer v1 : new Integer[] { 1, null })
1768 +    {
1769 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1770 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1771 +        final Noop r = new Noop();
1772 +        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1773 +        final CFException ex = new CFException();
1774 +
1775 +        g.completeExceptionally(ex);
1776 +        checkIncomplete(h);
1777 +        f.complete(v1);
1778 +
1779 +        checkCompletedWithWrappedCFException(h, ex);
1780 +        checkCompletedWithWrappedCFException(g, ex);
1781 +        assertEquals(0, r.invocationCount);
1782 +        checkCompletedNormally(f, v1);
1783 +    }}
1784 +
1785 +    public void testRunAfterBoth_exceptionalCompletion3() {
1786 +        for (ExecutionMode m : ExecutionMode.values())
1787 +        for (Integer v1 : new Integer[] { 1, null })
1788 +    {
1789 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1790 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1791 +        final Noop r = new Noop();
1792 +        final CFException ex = new CFException();
1793 +
1794 +        g.completeExceptionally(ex);
1795 +        f.complete(v1);
1796 +        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1797 +
1798 +        checkCompletedWithWrappedCFException(h, ex);
1799 +        checkCompletedWithWrappedCFException(g, ex);
1800 +        assertEquals(0, r.invocationCount);
1801 +        checkCompletedNormally(f, v1);
1802 +    }}
1803 +
1804 +    public void testRunAfterBoth_exceptionalCompletion4() {
1805 +        for (ExecutionMode m : ExecutionMode.values())
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 +        final CFException ex = new CFException();
1812 +
1813 +        f.completeExceptionally(ex);
1814 +        g.complete(v1);
1815 +        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1816 +
1817 +        checkCompletedWithWrappedCFException(h, ex);
1818 +        checkCompletedWithWrappedCFException(f, ex);
1819 +        assertEquals(0, r.invocationCount);
1820 +        checkCompletedNormally(g, v1);
1821 +    }}
1822 +
1823 +    /**
1824 +     * runAfterBoth result completes exceptionally if action does
1825 +     */
1826 +    public void testRunAfterBoth_actionFailed1() {
1827 +        for (ExecutionMode m : ExecutionMode.values())
1828 +        for (Integer v1 : new Integer[] { 1, null })
1829 +        for (Integer v2 : new Integer[] { 2, null })
1830 +    {
1831 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1832 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1833 +        final FailingNoop r = new FailingNoop();
1834 +        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1835 +
1836 +        f.complete(v1);
1837 +        checkIncomplete(h);
1838 +        g.complete(v2);
1839 +
1840 +        checkCompletedWithWrappedCFException(h);
1841 +        checkCompletedNormally(f, v1);
1842 +        checkCompletedNormally(g, v2);
1843 +    }}
1844 +
1845 +    public void testRunAfterBoth_actionFailed2() {
1846 +        for (ExecutionMode m : ExecutionMode.values())
1847 +        for (Integer v1 : new Integer[] { 1, null })
1848 +        for (Integer v2 : new Integer[] { 2, null })
1849 +    {
1850 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1851 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1852 +        final FailingNoop r = new FailingNoop();
1853 +        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1854 +
1855 +        g.complete(v2);
1856 +        checkIncomplete(h);
1857 +        f.complete(v1);
1858 +
1859 +        checkCompletedWithWrappedCFException(h);
1860 +        checkCompletedNormally(f, v1);
1861 +        checkCompletedNormally(g, v2);
1862 +    }}
1863 +
1864 +    /**
1865 +     * runAfterBoth result completes exceptionally if either source cancelled
1866 +     */
1867 +    public void testRunAfterBoth_sourceCancelled1() {
1868 +        for (ExecutionMode m : ExecutionMode.values())
1869 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1870 +        for (Integer v1 : new Integer[] { 1, null })
1871 +    {
1872 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1873 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1874 +        final Noop r = new Noop();
1875 +        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1876 +
1877 +        assertTrue(f.cancel(mayInterruptIfRunning));
1878 +        checkIncomplete(h);
1879 +        g.complete(v1);
1880 +
1881 +        checkCompletedWithWrappedCancellationException(h);
1882 +        checkCancelled(f);
1883 +        assertEquals(0, r.invocationCount);
1884 +        checkCompletedNormally(g, v1);
1885 +    }}
1886 +
1887 +    public void testRunAfterBoth_sourceCancelled2() {
1888 +        for (ExecutionMode m : ExecutionMode.values())
1889 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1890 +        for (Integer v1 : new Integer[] { 1, null })
1891 +    {
1892 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1893 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1894 +        final Noop r = new Noop();
1895 +        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1896 +
1897 +        assertTrue(g.cancel(mayInterruptIfRunning));
1898 +        checkIncomplete(h);
1899 +        f.complete(v1);
1900 +
1901 +        checkCompletedWithWrappedCancellationException(h);
1902 +        checkCancelled(g);
1903 +        assertEquals(0, r.invocationCount);
1904 +        checkCompletedNormally(f, v1);
1905 +    }}
1906 +
1907 +    public void testRunAfterBoth_sourceCancelled3() {
1908 +        for (ExecutionMode m : ExecutionMode.values())
1909 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1910 +        for (Integer v1 : new Integer[] { 1, null })
1911 +    {
1912 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1913 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1914 +        final Noop r = new Noop();
1915 +
1916 +        assertTrue(g.cancel(mayInterruptIfRunning));
1917 +        f.complete(v1);
1918 +        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1919 +
1920 +        checkCompletedWithWrappedCancellationException(h);
1921 +        checkCancelled(g);
1922 +        assertEquals(0, r.invocationCount);
1923 +        checkCompletedNormally(f, v1);
1924 +    }}
1925 +
1926 +    public void testRunAfterBoth_sourceCancelled4() {
1927 +        for (ExecutionMode m : ExecutionMode.values())
1928 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1929 +        for (Integer v1 : new Integer[] { 1, null })
1930 +    {
1931 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1932 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1933 +        final Noop r = new Noop();
1934 +
1935 +        assertTrue(f.cancel(mayInterruptIfRunning));
1936 +        g.complete(v1);
1937 +        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1938 +
1939 +        checkCompletedWithWrappedCancellationException(h);
1940 +        checkCancelled(f);
1941 +        assertEquals(0, r.invocationCount);
1942 +        checkCompletedNormally(g, v1);
1943 +    }}
1944 +
1945 +    /**
1946 +     * applyToEither result completes normally after normal completion
1947 +     * of either source
1948 +     */
1949 +    public void testApplyToEither_normalCompletion1() {
1950 +        for (ExecutionMode m : ExecutionMode.values())
1951 +        for (Integer v1 : new Integer[] { 1, null })
1952 +        for (Integer v2 : new Integer[] { 2, null })
1953 +    {
1954 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1955 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1956 +        final IncFunction r = new IncFunction();
1957 +        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
1958 +
1959 +        f.complete(v1);
1960 +        checkCompletedNormally(h, inc(v1));
1961 +        g.complete(v2);
1962 +
1963 +        checkCompletedNormally(f, v1);
1964 +        checkCompletedNormally(g, v2);
1965 +        checkCompletedNormally(h, inc(v1));
1966 +    }}
1967 +
1968 +    public void testApplyToEither_normalCompletion2() {
1969 +        for (ExecutionMode m : ExecutionMode.values())
1970 +        for (Integer v1 : new Integer[] { 1, null })
1971 +        for (Integer v2 : new Integer[] { 2, null })
1972 +    {
1973 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1974 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1975 +        final IncFunction r = new IncFunction();
1976 +        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
1977 +
1978 +        g.complete(v2);
1979 +        checkCompletedNormally(h, inc(v2));
1980 +        f.complete(v1);
1981 +
1982 +        checkCompletedNormally(f, v1);
1983 +        checkCompletedNormally(g, v2);
1984 +        checkCompletedNormally(h, inc(v2));
1985 +        }}
1986 +
1987 +    public void testApplyToEither_normalCompletion3() {
1988 +        for (ExecutionMode m : ExecutionMode.values())
1989 +        for (Integer v1 : new Integer[] { 1, null })
1990 +        for (Integer v2 : new Integer[] { 2, null })
1991 +    {
1992 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1993 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1994 +        final IncFunction r = new IncFunction();
1995 +
1996 +        f.complete(v1);
1997 +        g.complete(v2);
1998 +        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
1999 +
2000 +        checkCompletedNormally(f, v1);
2001 +        checkCompletedNormally(g, v2);
2002 +
2003 +        // unspecified behavior
2004 +        assertTrue(Objects.equals(h.join(), inc(v1)) ||
2005 +                   Objects.equals(h.join(), inc(v2)));
2006 +        assertEquals(1, r.invocationCount);
2007 +    }}
2008 +
2009 +    /**
2010 +     * applyToEither result completes exceptionally after exceptional
2011 +     * completion of either source
2012 +     */
2013 +    public void testApplyToEither_exceptionalCompletion1() {
2014 +        for (ExecutionMode m : ExecutionMode.values())
2015 +        for (Integer v1 : new Integer[] { 1, null })
2016 +    {
2017 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2018 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2019 +        final IncFunction r = new IncFunction();
2020 +        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2021 +        final CFException ex = new CFException();
2022 +
2023 +        f.completeExceptionally(ex);
2024 +        checkCompletedWithWrappedCFException(h, ex);
2025 +        g.complete(v1);
2026 +
2027 +        assertEquals(0, r.invocationCount);
2028 +        checkCompletedNormally(g, v1);
2029 +        checkCompletedWithWrappedCFException(f, ex);
2030 +        checkCompletedWithWrappedCFException(h, ex);
2031 +    }}
2032 +
2033 +    public void testApplyToEither_exceptionalCompletion2() {
2034 +        for (ExecutionMode m : ExecutionMode.values())
2035 +        for (Integer v1 : new Integer[] { 1, null })
2036 +    {
2037 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2038 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2039 +        final IncFunction r = new IncFunction();
2040 +        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2041 +        final CFException ex = new CFException();
2042 +
2043 +        g.completeExceptionally(ex);
2044 +        checkCompletedWithWrappedCFException(h, ex);
2045 +        f.complete(v1);
2046 +
2047 +        assertEquals(0, r.invocationCount);
2048 +        checkCompletedNormally(f, v1);
2049 +        checkCompletedWithWrappedCFException(g, ex);
2050 +        checkCompletedWithWrappedCFException(h, ex);
2051 +    }}
2052 +
2053 +    public void testApplyToEither_exceptionalCompletion3() {
2054 +        for (ExecutionMode m : ExecutionMode.values())
2055 +        for (Integer v1 : new Integer[] { 1, null })
2056 +    {
2057 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2058 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2059 +        final IncFunction r = new IncFunction();
2060 +        final CFException ex = new CFException();
2061 +
2062 +        g.completeExceptionally(ex);
2063 +        f.complete(v1);
2064 +        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2065 +
2066 +        // unspecified behavior
2067 +        Integer v;
2068 +        try {
2069 +            assertEquals(inc(v1), h.join());
2070 +            assertEquals(1, r.invocationCount);
2071 +        } catch (CompletionException ok) {
2072 +            checkCompletedWithWrappedCFException(h, ex);
2073 +            assertEquals(0, r.invocationCount);
2074 +        }
2075 +
2076 +        checkCompletedWithWrappedCFException(g, ex);
2077 +        checkCompletedNormally(f, v1);
2078 +    }}
2079 +
2080 +    public void testApplyToEither_exceptionalCompletion4() {
2081 +        for (ExecutionMode m : ExecutionMode.values())
2082 +        for (Integer v1 : new Integer[] { 1, null })
2083 +    {
2084 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2085 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2086 +        final IncFunction r = new IncFunction();
2087 +        final CFException ex = new CFException();
2088 +
2089 +        f.completeExceptionally(ex);
2090 +        g.complete(v1);
2091 +        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2092 +
2093 +        // unspecified behavior
2094 +        Integer v;
2095 +        try {
2096 +            assertEquals(inc(v1), h.join());
2097 +            assertEquals(1, r.invocationCount);
2098 +        } catch (CompletionException ok) {
2099 +            checkCompletedWithWrappedCFException(h, ex);
2100 +            assertEquals(0, r.invocationCount);
2101 +        }
2102 +
2103 +        checkCompletedWithWrappedCFException(f, ex);
2104 +        checkCompletedNormally(g, v1);
2105 +    }}
2106 +
2107 +    /**
2108 +     * applyToEither result completes exceptionally if action does
2109 +     */
2110 +    public void testApplyToEither_actionFailed1() {
2111 +        for (ExecutionMode m : ExecutionMode.values())
2112 +        for (Integer v1 : new Integer[] { 1, null })
2113 +        for (Integer v2 : new Integer[] { 2, null })
2114 +    {
2115 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2116 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2117 +        final FailingFunction r = new FailingFunction();
2118 +        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2119 +
2120 +        f.complete(v1);
2121 +        checkCompletedWithWrappedCFException(h);
2122 +        g.complete(v2);
2123 +        checkCompletedNormally(f, v1);
2124 +        checkCompletedNormally(g, v2);
2125 +    }}
2126 +
2127 +    public void testApplyToEither_actionFailed2() {
2128 +        for (ExecutionMode m : ExecutionMode.values())
2129 +        for (Integer v1 : new Integer[] { 1, null })
2130 +        for (Integer v2 : new Integer[] { 2, null })
2131 +    {
2132 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2133 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2134 +        final FailingFunction r = new FailingFunction();
2135 +        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2136 +
2137 +        g.complete(v2);
2138 +        checkCompletedWithWrappedCFException(h);
2139 +        f.complete(v1);
2140 +        checkCompletedNormally(f, v1);
2141 +        checkCompletedNormally(g, v2);
2142 +    }}
2143 +
2144 +    /**
2145 +     * applyToEither result completes exceptionally if either source cancelled
2146 +     */
2147 +    public void testApplyToEither_sourceCancelled1() {
2148 +        for (ExecutionMode m : ExecutionMode.values())
2149 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2150 +        for (Integer v1 : new Integer[] { 1, null })
2151 +    {
2152 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2153 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2154 +        final IncFunction r = new IncFunction();
2155 +        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2156 +
2157 +        assertTrue(f.cancel(mayInterruptIfRunning));
2158 +        checkCompletedWithWrappedCancellationException(h);
2159 +        g.complete(v1);
2160 +
2161 +        checkCancelled(f);
2162 +        assertEquals(0, r.invocationCount);
2163 +        checkCompletedNormally(g, v1);
2164 +        checkCompletedWithWrappedCancellationException(h);
2165 +    }}
2166 +
2167 +    public void testApplyToEither_sourceCancelled2() {
2168 +        for (ExecutionMode m : ExecutionMode.values())
2169 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2170 +        for (Integer v1 : new Integer[] { 1, null })
2171 +    {
2172 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2173 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2174 +        final IncFunction r = new IncFunction();
2175 +        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2176 +
2177 +        assertTrue(g.cancel(mayInterruptIfRunning));
2178 +        checkCompletedWithWrappedCancellationException(h);
2179 +        f.complete(v1);
2180 +
2181 +        checkCancelled(g);
2182 +        assertEquals(0, r.invocationCount);
2183 +        checkCompletedNormally(f, v1);
2184 +        checkCompletedWithWrappedCancellationException(h);
2185 +    }}
2186 +
2187 +    public void testApplyToEither_sourceCancelled3() {
2188 +        for (ExecutionMode m : ExecutionMode.values())
2189 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2190 +        for (Integer v1 : new Integer[] { 1, null })
2191 +    {
2192 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2193 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2194 +        final IncFunction r = new IncFunction();
2195 +
2196 +        assertTrue(g.cancel(mayInterruptIfRunning));
2197 +        f.complete(v1);
2198 +        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2199 +
2200 +        // unspecified behavior
2201 +        Integer v;
2202 +        try {
2203 +            assertEquals(inc(v1), h.join());
2204 +            assertEquals(1, r.invocationCount);
2205 +        } catch (CompletionException ok) {
2206 +            checkCompletedWithWrappedCancellationException(h);
2207 +            assertEquals(0, r.invocationCount);
2208 +        }
2209 +
2210 +        checkCancelled(g);
2211 +        checkCompletedNormally(f, v1);
2212 +    }}
2213 +
2214 +    public void testApplyToEither_sourceCancelled4() {
2215 +        for (ExecutionMode m : ExecutionMode.values())
2216 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2217 +        for (Integer v1 : new Integer[] { 1, null })
2218 +    {
2219 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2220 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2221 +        final IncFunction r = new IncFunction();
2222 +
2223 +        assertTrue(f.cancel(mayInterruptIfRunning));
2224 +        g.complete(v1);
2225 +        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2226 +
2227 +        // unspecified behavior
2228 +        Integer v;
2229 +        try {
2230 +            assertEquals(inc(v1), h.join());
2231 +            assertEquals(1, r.invocationCount);
2232 +        } catch (CompletionException ok) {
2233 +            checkCompletedWithWrappedCancellationException(h);
2234 +            assertEquals(0, r.invocationCount);
2235 +        }
2236 +
2237 +        checkCancelled(f);
2238 +        checkCompletedNormally(g, v1);
2239 +    }}
2240 +
2241 +    /**
2242 +     * acceptEither result completes normally after normal completion
2243 +     * of either source
2244 +     */
2245 +    public void testAcceptEither_normalCompletion1() {
2246 +        for (ExecutionMode m : ExecutionMode.values())
2247 +        for (Integer v1 : new Integer[] { 1, null })
2248 +        for (Integer v2 : new Integer[] { 2, null })
2249 +    {
2250 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2251 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2252 +        final IncAction r = new IncAction();
2253 +        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2254 +
2255 +        f.complete(v1);
2256 +        checkCompletedNormally(h, null);
2257 +        assertEquals(inc(v1), r.value);
2258 +        g.complete(v2);
2259 +
2260 +        checkCompletedNormally(f, v1);
2261 +        checkCompletedNormally(g, v2);
2262 +        checkCompletedNormally(h, null);
2263 +    }}
2264 +
2265 +    public void testAcceptEither_normalCompletion2() {
2266 +        for (ExecutionMode m : ExecutionMode.values())
2267 +        for (Integer v1 : new Integer[] { 1, null })
2268 +        for (Integer v2 : new Integer[] { 2, null })
2269 +    {
2270 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2271 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2272 +        final IncAction r = new IncAction();
2273 +        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2274 +
2275 +        g.complete(v2);
2276 +        checkCompletedNormally(h, null);
2277 +        assertEquals(inc(v2), r.value);
2278 +        f.complete(v1);
2279 +
2280 +        checkCompletedNormally(f, v1);
2281 +        checkCompletedNormally(g, v2);
2282 +        checkCompletedNormally(h, null);
2283 +    }}
2284 +
2285 +    public void testAcceptEither_normalCompletion3() {
2286 +        for (ExecutionMode m : ExecutionMode.values())
2287 +        for (Integer v1 : new Integer[] { 1, null })
2288 +        for (Integer v2 : new Integer[] { 2, null })
2289 +    {
2290 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2291 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2292 +        final IncAction r = new IncAction();
2293 +
2294 +        f.complete(v1);
2295 +        g.complete(v2);
2296 +        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2297 +
2298 +        checkCompletedNormally(h, null);
2299 +        checkCompletedNormally(f, v1);
2300 +        checkCompletedNormally(g, v2);
2301 +
2302 +        // unspecified behavior
2303 +        assertTrue(Objects.equals(r.value, inc(v1)) ||
2304 +                   Objects.equals(r.value, inc(v2)));
2305 +    }}
2306 +
2307 +    /**
2308 +     * acceptEither result completes exceptionally after exceptional
2309 +     * completion of either source
2310 +     */
2311 +    public void testAcceptEither_exceptionalCompletion1() {
2312 +        for (ExecutionMode m : ExecutionMode.values())
2313 +        for (Integer v1 : new Integer[] { 1, null })
2314 +    {
2315 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2316 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2317 +        final IncAction r = new IncAction();
2318 +        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2319 +        final CFException ex = new CFException();
2320 +
2321 +        f.completeExceptionally(ex);
2322 +        checkCompletedWithWrappedCFException(h, ex);
2323 +        g.complete(v1);
2324 +
2325 +        assertEquals(0, r.invocationCount);
2326 +        checkCompletedNormally(g, v1);
2327 +        checkCompletedWithWrappedCFException(f, ex);
2328 +        checkCompletedWithWrappedCFException(h, ex);
2329 +    }}
2330 +
2331 +    public void testAcceptEither_exceptionalCompletion2() {
2332 +        for (ExecutionMode m : ExecutionMode.values())
2333 +        for (Integer v1 : new Integer[] { 1, null })
2334 +    {
2335 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2336 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2337 +        final IncAction r = new IncAction();
2338 +        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2339 +        final CFException ex = new CFException();
2340 +
2341 +        g.completeExceptionally(ex);
2342 +        checkCompletedWithWrappedCFException(h, ex);
2343 +        f.complete(v1);
2344 +
2345 +        assertEquals(0, r.invocationCount);
2346 +        checkCompletedNormally(f, v1);
2347 +        checkCompletedWithWrappedCFException(g, ex);
2348 +        checkCompletedWithWrappedCFException(h, ex);
2349 +    }}
2350 +
2351 +    public void testAcceptEither_exceptionalCompletion3() {
2352 +        for (ExecutionMode m : ExecutionMode.values())
2353 +        for (Integer v1 : new Integer[] { 1, null })
2354 +    {
2355 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2356 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2357 +        final IncAction r = new IncAction();
2358 +        final CFException ex = new CFException();
2359 +
2360 +        g.completeExceptionally(ex);
2361 +        f.complete(v1);
2362 +        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2363 +
2364 +        // unspecified behavior
2365 +        Integer v;
2366 +        try {
2367 +            assertNull(h.join());
2368 +            assertEquals(1, r.invocationCount);
2369 +            assertEquals(inc(v1), r.value);
2370 +        } catch (CompletionException ok) {
2371 +            checkCompletedWithWrappedCFException(h, ex);
2372 +            assertEquals(0, r.invocationCount);
2373 +        }
2374 +
2375 +        checkCompletedWithWrappedCFException(g, ex);
2376 +        checkCompletedNormally(f, v1);
2377 +    }}
2378 +
2379 +    public void testAcceptEither_exceptionalCompletion4() {
2380 +        for (ExecutionMode m : ExecutionMode.values())
2381 +        for (Integer v1 : new Integer[] { 1, null })
2382 +    {
2383 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2384 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2385 +        final IncAction r = new IncAction();
2386 +        final CFException ex = new CFException();
2387 +
2388 +        f.completeExceptionally(ex);
2389 +        g.complete(v1);
2390 +        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2391 +
2392 +        // unspecified behavior
2393 +        Integer v;
2394 +        try {
2395 +            assertNull(h.join());
2396 +            assertEquals(1, r.invocationCount);
2397 +            assertEquals(inc(v1), r.value);
2398 +        } catch (CompletionException ok) {
2399 +            checkCompletedWithWrappedCFException(h, ex);
2400 +            assertEquals(0, r.invocationCount);
2401 +        }
2402 +
2403 +        checkCompletedWithWrappedCFException(f, ex);
2404 +        checkCompletedNormally(g, v1);
2405 +    }}
2406 +
2407 +    /**
2408 +     * acceptEither result completes exceptionally if action does
2409 +     */
2410 +    public void testAcceptEither_actionFailed1() {
2411 +        for (ExecutionMode m : ExecutionMode.values())
2412 +        for (Integer v1 : new Integer[] { 1, null })
2413 +        for (Integer v2 : new Integer[] { 2, null })
2414 +    {
2415 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2416 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2417 +        final FailingConsumer r = new FailingConsumer();
2418 +        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2419 +
2420 +        f.complete(v1);
2421 +        checkCompletedWithWrappedCFException(h);
2422 +        g.complete(v2);
2423 +        checkCompletedNormally(f, v1);
2424 +        checkCompletedNormally(g, v2);
2425 +    }}
2426 +
2427 +    public void testAcceptEither_actionFailed2() {
2428 +        for (ExecutionMode m : ExecutionMode.values())
2429 +        for (Integer v1 : new Integer[] { 1, null })
2430 +        for (Integer v2 : new Integer[] { 2, null })
2431 +    {
2432 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2433 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2434 +        final FailingConsumer r = new FailingConsumer();
2435 +        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2436 +
2437 +        g.complete(v2);
2438 +        checkCompletedWithWrappedCFException(h);
2439 +        f.complete(v1);
2440 +        checkCompletedNormally(f, v1);
2441 +        checkCompletedNormally(g, v2);
2442 +    }}
2443 +
2444 +    /**
2445 +     * acceptEither result completes exceptionally if either source cancelled
2446 +     */
2447 +    public void testAcceptEither_sourceCancelled1() {
2448 +        for (ExecutionMode m : ExecutionMode.values())
2449 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2450 +        for (Integer v1 : new Integer[] { 1, null })
2451 +    {
2452 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2453 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2454 +        final IncAction r = new IncAction();
2455 +        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2456 +
2457 +        assertTrue(f.cancel(mayInterruptIfRunning));
2458 +        checkCompletedWithWrappedCancellationException(h);
2459 +        g.complete(v1);
2460 +
2461 +        checkCancelled(f);
2462 +        assertEquals(0, r.invocationCount);
2463 +        checkCompletedNormally(g, v1);
2464 +        checkCompletedWithWrappedCancellationException(h);
2465 +    }}
2466 +
2467 +    public void testAcceptEither_sourceCancelled2() {
2468 +        for (ExecutionMode m : ExecutionMode.values())
2469 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2470 +        for (Integer v1 : new Integer[] { 1, null })
2471 +    {
2472 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2473 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2474 +        final IncAction r = new IncAction();
2475 +        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2476 +
2477 +        assertTrue(g.cancel(mayInterruptIfRunning));
2478 +        checkCompletedWithWrappedCancellationException(h);
2479 +        f.complete(v1);
2480 +
2481 +        checkCancelled(g);
2482 +        assertEquals(0, r.invocationCount);
2483 +        checkCompletedNormally(f, v1);
2484 +        checkCompletedWithWrappedCancellationException(h);
2485 +    }}
2486 +
2487 +    public void testAcceptEither_sourceCancelled3() {
2488 +        for (ExecutionMode m : ExecutionMode.values())
2489 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2490 +        for (Integer v1 : new Integer[] { 1, null })
2491 +    {
2492 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2493 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2494 +        final IncAction r = new IncAction();
2495 +
2496 +        assertTrue(g.cancel(mayInterruptIfRunning));
2497 +        f.complete(v1);
2498 +        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2499 +
2500 +        // unspecified behavior
2501 +        Integer v;
2502 +        try {
2503 +            assertNull(h.join());
2504 +            assertEquals(1, r.invocationCount);
2505 +            assertEquals(inc(v1), r.value);
2506 +        } catch (CompletionException ok) {
2507 +            checkCompletedWithWrappedCancellationException(h);
2508 +            assertEquals(0, r.invocationCount);
2509 +        }
2510 +
2511 +        checkCancelled(g);
2512 +        checkCompletedNormally(f, v1);
2513 +    }}
2514 +
2515 +    public void testAcceptEither_sourceCancelled4() {
2516 +        for (ExecutionMode m : ExecutionMode.values())
2517 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2518 +        for (Integer v1 : new Integer[] { 1, null })
2519 +    {
2520 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2521 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2522 +        final IncAction r = new IncAction();
2523 +
2524 +        assertTrue(f.cancel(mayInterruptIfRunning));
2525 +        g.complete(v1);
2526 +        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2527 +
2528 +        // unspecified behavior
2529 +        Integer v;
2530 +        try {
2531 +            assertNull(h.join());
2532 +            assertEquals(1, r.invocationCount);
2533 +            assertEquals(inc(v1), r.value);
2534 +        } catch (CompletionException ok) {
2535 +            checkCompletedWithWrappedCancellationException(h);
2536 +            assertEquals(0, r.invocationCount);
2537 +        }
2538 +
2539 +        checkCancelled(f);
2540 +        checkCompletedNormally(g, v1);
2541 +    }}
2542 +
2543 +    /**
2544 +     * runAfterEither result completes normally after normal completion
2545 +     * of either source
2546 +     */
2547 +    public void testRunAfterEither_normalCompletion1() {
2548 +        for (ExecutionMode m : ExecutionMode.values())
2549 +        for (Integer v1 : new Integer[] { 1, null })
2550 +        for (Integer v2 : new Integer[] { 2, null })
2551 +    {
2552 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2553 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2554 +        final Noop r = new Noop();
2555 +        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2556 +
2557 +        f.complete(v1);
2558 +        checkCompletedNormally(h, null);
2559 +        assertEquals(1, r.invocationCount);
2560 +        g.complete(v2);
2561 +
2562 +        checkCompletedNormally(f, v1);
2563 +        checkCompletedNormally(g, v2);
2564 +        checkCompletedNormally(h, null);
2565 +        assertEquals(1, r.invocationCount);
2566 +    }}
2567 +
2568 +    public void testRunAfterEither_normalCompletion2() {
2569 +        for (ExecutionMode m : ExecutionMode.values())
2570 +        for (Integer v1 : new Integer[] { 1, null })
2571 +        for (Integer v2 : new Integer[] { 2, null })
2572 +    {
2573 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2574 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2575 +        final Noop r = new Noop();
2576 +        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2577 +
2578 +        g.complete(v2);
2579 +        checkCompletedNormally(h, null);
2580 +        assertEquals(1, r.invocationCount);
2581 +        f.complete(v1);
2582 +
2583 +        checkCompletedNormally(f, v1);
2584 +        checkCompletedNormally(g, v2);
2585 +        checkCompletedNormally(h, null);
2586 +        assertEquals(1, r.invocationCount);
2587 +        }}
2588 +
2589 +    public void testRunAfterEither_normalCompletion3() {
2590 +        for (ExecutionMode m : ExecutionMode.values())
2591 +        for (Integer v1 : new Integer[] { 1, null })
2592 +        for (Integer v2 : new Integer[] { 2, null })
2593 +    {
2594 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2595 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2596 +        final Noop r = new Noop();
2597 +
2598 +        f.complete(v1);
2599 +        g.complete(v2);
2600 +        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2601 +
2602 +        checkCompletedNormally(h, null);
2603 +        checkCompletedNormally(f, v1);
2604 +        checkCompletedNormally(g, v2);
2605 +        assertEquals(1, r.invocationCount);
2606 +    }}
2607 +
2608 +    /**
2609 +     * runAfterEither result completes exceptionally after exceptional
2610 +     * completion of either source
2611 +     */
2612 +    public void testRunAfterEither_exceptionalCompletion1() {
2613 +        for (ExecutionMode m : ExecutionMode.values())
2614 +        for (Integer v1 : new Integer[] { 1, null })
2615 +    {
2616 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2617 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2618 +        final Noop r = new Noop();
2619 +        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2620 +        final CFException ex = new CFException();
2621 +
2622 +        f.completeExceptionally(ex);
2623 +        checkCompletedWithWrappedCFException(h, ex);
2624 +        g.complete(v1);
2625 +
2626 +        assertEquals(0, r.invocationCount);
2627 +        checkCompletedNormally(g, v1);
2628 +        checkCompletedWithWrappedCFException(f, ex);
2629 +        checkCompletedWithWrappedCFException(h, ex);
2630 +    }}
2631 +
2632 +    public void testRunAfterEither_exceptionalCompletion2() {
2633 +        for (ExecutionMode m : ExecutionMode.values())
2634 +        for (Integer v1 : new Integer[] { 1, null })
2635 +    {
2636 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2637 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2638 +        final Noop r = new Noop();
2639 +        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2640 +        final CFException ex = new CFException();
2641 +
2642 +        g.completeExceptionally(ex);
2643 +        checkCompletedWithWrappedCFException(h, ex);
2644 +        f.complete(v1);
2645 +
2646 +        assertEquals(0, r.invocationCount);
2647 +        checkCompletedNormally(f, v1);
2648 +        checkCompletedWithWrappedCFException(g, ex);
2649 +        checkCompletedWithWrappedCFException(h, ex);
2650 +    }}
2651 +
2652 +    public void testRunAfterEither_exceptionalCompletion3() {
2653 +        for (ExecutionMode m : ExecutionMode.values())
2654 +        for (Integer v1 : new Integer[] { 1, null })
2655 +    {
2656 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2657 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2658 +        final Noop r = new Noop();
2659 +        final CFException ex = new CFException();
2660 +
2661 +        g.completeExceptionally(ex);
2662 +        f.complete(v1);
2663 +        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2664 +
2665 +        // unspecified behavior
2666 +        Integer v;
2667 +        try {
2668 +            assertNull(h.join());
2669 +            assertEquals(1, r.invocationCount);
2670 +        } catch (CompletionException ok) {
2671 +            checkCompletedWithWrappedCFException(h, ex);
2672 +            assertEquals(0, r.invocationCount);
2673 +        }
2674 +
2675 +        checkCompletedWithWrappedCFException(g, ex);
2676 +        checkCompletedNormally(f, v1);
2677 +    }}
2678 +
2679 +    public void testRunAfterEither_exceptionalCompletion4() {
2680 +        for (ExecutionMode m : ExecutionMode.values())
2681 +        for (Integer v1 : new Integer[] { 1, null })
2682 +    {
2683 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2684 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2685 +        final Noop r = new Noop();
2686 +        final CFException ex = new CFException();
2687 +
2688 +        f.completeExceptionally(ex);
2689 +        g.complete(v1);
2690 +        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2691 +
2692 +        // unspecified behavior
2693 +        Integer v;
2694 +        try {
2695 +            assertNull(h.join());
2696 +            assertEquals(1, r.invocationCount);
2697 +        } catch (CompletionException ok) {
2698 +            checkCompletedWithWrappedCFException(h, ex);
2699 +            assertEquals(0, r.invocationCount);
2700 +        }
2701 +
2702 +        checkCompletedWithWrappedCFException(f, ex);
2703 +        checkCompletedNormally(g, v1);
2704 +    }}
2705 +
2706 +    /**
2707 +     * runAfterEither result completes exceptionally if action does
2708 +     */
2709 +    public void testRunAfterEither_actionFailed1() {
2710 +        for (ExecutionMode m : ExecutionMode.values())
2711 +        for (Integer v1 : new Integer[] { 1, null })
2712 +        for (Integer v2 : new Integer[] { 2, null })
2713 +    {
2714 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2715 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2716 +        final FailingNoop r = new FailingNoop();
2717 +        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2718 +
2719 +        f.complete(v1);
2720 +        checkCompletedWithWrappedCFException(h);
2721 +        g.complete(v2);
2722 +        checkCompletedNormally(f, v1);
2723 +        checkCompletedNormally(g, v2);
2724 +    }}
2725 +
2726 +    public void testRunAfterEither_actionFailed2() {
2727 +        for (ExecutionMode m : ExecutionMode.values())
2728 +        for (Integer v1 : new Integer[] { 1, null })
2729 +        for (Integer v2 : new Integer[] { 2, null })
2730 +    {
2731 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2732 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2733 +        final FailingNoop r = new FailingNoop();
2734 +        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2735 +
2736 +        g.complete(v2);
2737 +        checkCompletedWithWrappedCFException(h);
2738 +        f.complete(v1);
2739 +        checkCompletedNormally(f, v1);
2740 +        checkCompletedNormally(g, v2);
2741 +    }}
2742 +
2743 +    /**
2744 +     * runAfterEither result completes exceptionally if either source cancelled
2745 +     */
2746 +    public void testRunAfterEither_sourceCancelled1() {
2747 +        for (ExecutionMode m : ExecutionMode.values())
2748 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2749 +        for (Integer v1 : new Integer[] { 1, null })
2750 +    {
2751 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2752 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2753 +        final Noop r = new Noop();
2754 +        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2755 +
2756 +        assertTrue(f.cancel(mayInterruptIfRunning));
2757 +        checkCompletedWithWrappedCancellationException(h);
2758 +        g.complete(v1);
2759 +
2760 +        checkCancelled(f);
2761 +        assertEquals(0, r.invocationCount);
2762 +        checkCompletedNormally(g, v1);
2763 +        checkCompletedWithWrappedCancellationException(h);
2764 +    }}
2765 +
2766 +    public void testRunAfterEither_sourceCancelled2() {
2767 +        for (ExecutionMode m : ExecutionMode.values())
2768 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2769 +        for (Integer v1 : new Integer[] { 1, null })
2770 +    {
2771 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2772 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2773 +        final Noop r = new Noop();
2774 +        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2775 +
2776 +        assertTrue(g.cancel(mayInterruptIfRunning));
2777 +        checkCompletedWithWrappedCancellationException(h);
2778 +        f.complete(v1);
2779 +
2780 +        checkCancelled(g);
2781 +        assertEquals(0, r.invocationCount);
2782 +        checkCompletedNormally(f, v1);
2783 +        checkCompletedWithWrappedCancellationException(h);
2784 +    }}
2785 +
2786 +    public void testRunAfterEither_sourceCancelled3() {
2787 +        for (ExecutionMode m : ExecutionMode.values())
2788 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2789 +        for (Integer v1 : new Integer[] { 1, null })
2790 +    {
2791 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2792 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2793 +        final Noop r = new Noop();
2794 +
2795 +        assertTrue(g.cancel(mayInterruptIfRunning));
2796 +        f.complete(v1);
2797 +        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2798 +
2799 +        // unspecified behavior
2800 +        Integer v;
2801 +        try {
2802 +            assertNull(h.join());
2803 +            assertEquals(1, r.invocationCount);
2804 +        } catch (CompletionException ok) {
2805 +            checkCompletedWithWrappedCancellationException(h);
2806 +            assertEquals(0, r.invocationCount);
2807 +        }
2808 +
2809 +        checkCancelled(g);
2810 +        checkCompletedNormally(f, v1);
2811 +    }}
2812 +
2813 +    public void testRunAfterEither_sourceCancelled4() {
2814 +        for (ExecutionMode m : ExecutionMode.values())
2815 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2816 +        for (Integer v1 : new Integer[] { 1, null })
2817 +    {
2818 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2819 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2820 +        final Noop r = new Noop();
2821 +
2822 +        assertTrue(f.cancel(mayInterruptIfRunning));
2823 +        g.complete(v1);
2824 +        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2825 +
2826 +        // unspecified behavior
2827 +        Integer v;
2828 +        try {
2829 +            assertNull(h.join());
2830 +            assertEquals(1, r.invocationCount);
2831 +        } catch (CompletionException ok) {
2832 +            checkCompletedWithWrappedCancellationException(h);
2833 +            assertEquals(0, r.invocationCount);
2834 +        }
2835 +
2836 +        checkCancelled(f);
2837 +        checkCompletedNormally(g, v1);
2838 +    }}
2839 +
2840 +    /**
2841 +     * thenCompose result completes normally after normal completion of source
2842 +     */
2843 +    public void testThenCompose_normalCompletion1() {
2844 +        for (ExecutionMode m : ExecutionMode.values())
2845 +        for (Integer v1 : new Integer[] { 1, null })
2846 +    {
2847 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2848 +        final CompletableFutureInc r = new CompletableFutureInc();
2849 +        final CompletableFuture<Integer> g = f.thenCompose(r);
2850 +        f.complete(v1);
2851 +        checkCompletedNormally(g, inc(v1));
2852 +        checkCompletedNormally(f, v1);
2853 +        assertEquals(1, r.invocationCount);
2854 +    }}
2855 +
2856 +    public void testThenCompose_normalCompletion2() {
2857 +        for (ExecutionMode m : ExecutionMode.values())
2858 +        for (Integer v1 : new Integer[] { 1, null })
2859 +    {
2860 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2861 +        final CompletableFutureInc r = new CompletableFutureInc();
2862 +        f.complete(v1);
2863 +        final CompletableFuture<Integer> g = f.thenCompose(r);
2864 +        checkCompletedNormally(g, inc(v1));
2865 +        checkCompletedNormally(f, v1);
2866 +        assertEquals(1, r.invocationCount);
2867 +    }}
2868 +
2869 +    /**
2870 +     * thenCompose result completes exceptionally after exceptional
2871 +     * completion of source
2872 +     */
2873 +    public void testThenCompose_exceptionalCompletion1() {
2874 +        for (ExecutionMode m : ExecutionMode.values())
2875 +    {
2876 +        final CFException ex = new CFException();
2877 +        final CompletableFutureInc r = new CompletableFutureInc();
2878 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2879 +        final CompletableFuture<Integer> g = f.thenCompose(r);
2880 +        f.completeExceptionally(ex);
2881 +        checkCompletedWithWrappedCFException(g, ex);
2882 +        checkCompletedWithWrappedCFException(f, ex);
2883 +    }}
2884 +
2885 +    public void testThenCompose_exceptionalCompletion2() {
2886 +        for (ExecutionMode m : ExecutionMode.values())
2887 +    {
2888 +        final CFException ex = new CFException();
2889 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2890 +        f.completeExceptionally(ex);
2891 +        final CompletableFutureInc r = new CompletableFutureInc();
2892 +        final CompletableFuture<Integer> g = f.thenCompose(r);
2893 +        checkCompletedWithWrappedCFException(g, ex);
2894 +        checkCompletedWithWrappedCFException(f, ex);
2895 +    }}
2896 +
2897 +    /**
2898 +     * thenCompose result completes exceptionally if action does
2899 +     */
2900 +    public void testThenCompose_actionFailed1() {
2901 +        for (ExecutionMode m : ExecutionMode.values())
2902 +        for (Integer v1 : new Integer[] { 1, null })
2903 +    {
2904 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2905 +        final FailingCompletableFutureFunction r
2906 +            = new FailingCompletableFutureFunction();
2907 +        final CompletableFuture<Integer> g = f.thenCompose(r);
2908 +        f.complete(v1);
2909 +        checkCompletedWithWrappedCFException(g);
2910 +        checkCompletedNormally(f, v1);
2911 +    }}
2912 +
2913 +    public void testThenCompose_actionFailed2() {
2914 +        for (ExecutionMode m : ExecutionMode.values())
2915 +        for (Integer v1 : new Integer[] { 1, null })
2916 +    {
2917 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2918 +        f.complete(v1);
2919 +        final FailingCompletableFutureFunction r
2920 +            = new FailingCompletableFutureFunction();
2921 +        final CompletableFuture<Integer> g = f.thenCompose(r);
2922 +        checkCompletedWithWrappedCFException(g);
2923 +        checkCompletedNormally(f, v1);
2924 +    }}
2925 +
2926 +    /**
2927 +     * thenCompose result completes exceptionally if source cancelled
2928 +     */
2929 +    public void testThenCompose_sourceCancelled1() {
2930 +        for (ExecutionMode m : ExecutionMode.values())
2931 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2932 +    {
2933 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2934 +        final CompletableFutureInc r = new CompletableFutureInc();
2935 +        final CompletableFuture<Integer> g = f.thenCompose(r);
2936 +        assertTrue(f.cancel(mayInterruptIfRunning));
2937 +        checkCompletedWithWrappedCancellationException(g);
2938 +        checkCancelled(f);
2939 +    }}
2940 +
2941 +    public void testThenCompose_sourceCancelled2() {
2942 +        for (ExecutionMode m : ExecutionMode.values())
2943 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2944 +    {
2945 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2946 +        assertTrue(f.cancel(mayInterruptIfRunning));
2947 +        final CompletableFutureInc r = new CompletableFutureInc();
2948 +        final CompletableFuture<Integer> g = f.thenCompose(r);
2949 +        checkCompletedWithWrappedCancellationException(g);
2950 +        checkCancelled(f);
2951 +    }}
2952 +
2953 +    // asyncs
2954 +
2955 +    /**
2956 +     * thenRunAsync result completes normally after normal completion of source
2957 +     */
2958 +    public void testThenRunAsync() {
2959 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2960 +        Noop r = new Noop();
2961 +        CompletableFuture<Void> g = f.thenRunAsync(r);
2962 +        f.complete(null);
2963 +        checkCompletedNormally(g, null);
2964 +
2965 +        // reordered version
2966 +        f = new CompletableFuture<>();
2967 +        f.complete(null);
2968 +        r = new Noop();
2969 +        g = f.thenRunAsync(r);
2970 +        checkCompletedNormally(g, null);
2971 +    }
2972 +
2973 +    /**
2974 +     * thenRunAsync result completes exceptionally after exceptional
2975 +     * completion of source
2976 +     */
2977 +    public void testThenRunAsync2() {
2978 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2979 +        Noop r = new Noop();
2980 +        CompletableFuture<Void> g = f.thenRunAsync(r);
2981 +        f.completeExceptionally(new CFException());
2982 +        try {
2983 +            g.join();
2984 +            shouldThrow();
2985 +        } catch (CompletionException success) {}
2986 +        checkCompletedWithWrappedCFException(g);
2987 +    }
2988 +
2989 +    /**
2990 +     * thenRunAsync result completes exceptionally if action does
2991 +     */
2992 +    public void testThenRunAsync3() {
2993 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2994 +        FailingNoop r = new FailingNoop();
2995 +        CompletableFuture<Void> g = f.thenRunAsync(r);
2996 +        f.complete(null);
2997 +        checkCompletedWithWrappedCFException(g);
2998 +    }
2999 +
3000 +    /**
3001 +     * thenRunAsync result completes exceptionally if source cancelled
3002 +     */
3003 +    public void testThenRunAsync4() {
3004 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3005 +        Noop r = new Noop();
3006 +        CompletableFuture<Void> g = f.thenRunAsync(r);
3007 +        assertTrue(f.cancel(true));
3008 +        checkCompletedWithWrappedCancellationException(g);
3009 +    }
3010 +
3011 +    /**
3012 +     * thenApplyAsync result completes normally after normal completion of source
3013 +     */
3014 +    public void testThenApplyAsync() {
3015 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3016 +        CompletableFuture<Integer> g = f.thenApplyAsync(inc);
3017 +        f.complete(one);
3018 +        checkCompletedNormally(g, two);
3019 +    }
3020 +
3021 +    /**
3022 +     * thenApplyAsync result completes exceptionally after exceptional
3023 +     * completion of source
3024 +     */
3025 +    public void testThenApplyAsync2() {
3026 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3027 +        CompletableFuture<Integer> g = f.thenApplyAsync(inc);
3028 +        f.completeExceptionally(new CFException());
3029 +        checkCompletedWithWrappedCFException(g);
3030 +    }
3031 +
3032 +    /**
3033 +     * thenApplyAsync result completes exceptionally if action does
3034 +     */
3035 +    public void testThenApplyAsync3() {
3036 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3037 +        FailingFunction r = new FailingFunction();
3038 +        CompletableFuture<Integer> g = f.thenApplyAsync(r);
3039 +        f.complete(null);
3040 +        checkCompletedWithWrappedCFException(g);
3041 +    }
3042 +
3043 +    /**
3044 +     * thenApplyAsync result completes exceptionally if source cancelled
3045 +     */
3046 +    public void testThenApplyAsync4() {
3047 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3048 +        CompletableFuture<Integer> g = f.thenApplyAsync(inc);
3049 +        assertTrue(f.cancel(true));
3050 +        checkCompletedWithWrappedCancellationException(g);
3051 +    }
3052 +
3053 +    /**
3054 +     * thenAcceptAsync result completes normally after normal
3055 +     * completion of source
3056 +     */
3057 +    public void testThenAcceptAsync() {
3058 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3059 +        IncAction r = new IncAction();
3060 +        CompletableFuture<Void> g = f.thenAcceptAsync(r);
3061 +        f.complete(one);
3062 +        checkCompletedNormally(g, null);
3063 +        assertEquals(r.value, (Integer) 2);
3064 +    }
3065 +
3066 +    /**
3067 +     * thenAcceptAsync result completes exceptionally after exceptional
3068 +     * completion of source
3069 +     */
3070 +    public void testThenAcceptAsync2() {
3071 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3072 +        IncAction r = new IncAction();
3073 +        CompletableFuture<Void> g = f.thenAcceptAsync(r);
3074 +        f.completeExceptionally(new CFException());
3075 +        checkCompletedWithWrappedCFException(g);
3076 +    }
3077 +
3078 +    /**
3079 +     * thenAcceptAsync result completes exceptionally if action does
3080 +     */
3081 +    public void testThenAcceptAsync3() {
3082 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3083 +        FailingConsumer r = new FailingConsumer();
3084 +        CompletableFuture<Void> g = f.thenAcceptAsync(r);
3085 +        f.complete(null);
3086 +        checkCompletedWithWrappedCFException(g);
3087 +    }
3088 +
3089 +    /**
3090 +     * thenAcceptAsync result completes exceptionally if source cancelled
3091 +     */
3092 +    public void testThenAcceptAsync4() {
3093 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3094 +        IncAction r = new IncAction();
3095 +        CompletableFuture<Void> g = f.thenAcceptAsync(r);
3096 +        assertTrue(f.cancel(true));
3097 +        checkCompletedWithWrappedCancellationException(g);
3098 +    }
3099 +
3100 +    // async with explicit executors
3101 +
3102 +    /**
3103 +     * thenRunAsync result completes normally after normal completion of source
3104 +     */
3105 +    public void testThenRunAsyncE() {
3106 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3107 +        Noop r = new Noop();
3108 +        CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
3109 +        f.complete(null);
3110 +        checkCompletedNormally(g, null);
3111 +
3112 +        // reordered version
3113 +        f = new CompletableFuture<>();
3114 +        f.complete(null);
3115 +        r = new Noop();
3116 +        g = f.thenRunAsync(r, new ThreadExecutor());
3117 +        checkCompletedNormally(g, null);
3118 +    }
3119 +
3120 +    /**
3121 +     * thenRunAsync result completes exceptionally after exceptional
3122 +     * completion of source
3123 +     */
3124 +    public void testThenRunAsync2E() {
3125 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3126 +        Noop r = new Noop();
3127 +        CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
3128 +        f.completeExceptionally(new CFException());
3129 +        try {
3130 +            g.join();
3131 +            shouldThrow();
3132 +        } catch (CompletionException success) {}
3133 +        checkCompletedWithWrappedCFException(g);
3134 +    }
3135 +
3136 +    /**
3137 +     * thenRunAsync result completes exceptionally if action does
3138 +     */
3139 +    public void testThenRunAsync3E() {
3140 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3141 +        FailingNoop r = new FailingNoop();
3142 +        CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
3143 +        f.complete(null);
3144 +        checkCompletedWithWrappedCFException(g);
3145 +    }
3146 +
3147 +    /**
3148 +     * thenRunAsync result completes exceptionally if source cancelled
3149 +     */
3150 +    public void testThenRunAsync4E() {
3151 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3152 +        Noop r = new Noop();
3153 +        CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
3154 +        assertTrue(f.cancel(true));
3155 +        checkCompletedWithWrappedCancellationException(g);
3156 +    }
3157 +
3158 +    /**
3159 +     * thenApplyAsync result completes normally after normal completion of source
3160 +     */
3161 +    public void testThenApplyAsyncE() {
3162 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3163 +        CompletableFuture<Integer> g = f.thenApplyAsync(inc, new ThreadExecutor());
3164 +        f.complete(one);
3165 +        checkCompletedNormally(g, two);
3166 +    }
3167 +
3168 +    /**
3169 +     * thenApplyAsync result completes exceptionally after exceptional
3170 +     * completion of source
3171 +     */
3172 +    public void testThenApplyAsync2E() {
3173 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3174 +        CompletableFuture<Integer> g = f.thenApplyAsync(inc, new ThreadExecutor());
3175 +        f.completeExceptionally(new CFException());
3176 +        checkCompletedWithWrappedCFException(g);
3177 +    }
3178 +
3179 +    /**
3180 +     * thenApplyAsync result completes exceptionally if action does
3181 +     */
3182 +    public void testThenApplyAsync3E() {
3183 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3184 +        FailingFunction r = new FailingFunction();
3185 +        CompletableFuture<Integer> g = f.thenApplyAsync(r, new ThreadExecutor());
3186 +        f.complete(null);
3187 +        checkCompletedWithWrappedCFException(g);
3188 +    }
3189 +
3190 +    /**
3191 +     * thenApplyAsync result completes exceptionally if source cancelled
3192 +     */
3193 +    public void testThenApplyAsync4E() {
3194 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3195 +        CompletableFuture<Integer> g = f.thenApplyAsync(inc, new ThreadExecutor());
3196 +        assertTrue(f.cancel(true));
3197 +        checkCompletedWithWrappedCancellationException(g);
3198 +    }
3199 +
3200 +    /**
3201 +     * thenAcceptAsync result completes normally after normal
3202 +     * completion of source
3203 +     */
3204 +    public void testThenAcceptAsyncE() {
3205 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3206 +        IncAction r = new IncAction();
3207 +        CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
3208 +        f.complete(one);
3209 +        checkCompletedNormally(g, null);
3210 +        assertEquals(r.value, (Integer) 2);
3211 +    }
3212 +
3213 +    /**
3214 +     * thenAcceptAsync result completes exceptionally after exceptional
3215 +     * completion of source
3216 +     */
3217 +    public void testThenAcceptAsync2E() {
3218 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3219 +        IncAction r = new IncAction();
3220 +        CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
3221 +        f.completeExceptionally(new CFException());
3222 +        checkCompletedWithWrappedCFException(g);
3223 +    }
3224 +
3225 +    /**
3226 +     * thenAcceptAsync result completes exceptionally if action does
3227 +     */
3228 +    public void testThenAcceptAsync3E() {
3229 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3230 +        FailingConsumer r = new FailingConsumer();
3231 +        CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
3232 +        f.complete(null);
3233 +        checkCompletedWithWrappedCFException(g);
3234 +    }
3235 +
3236 +    /**
3237 +     * thenAcceptAsync result completes exceptionally if source cancelled
3238 +     */
3239 +    public void testThenAcceptAsync4E() {
3240 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3241 +        IncAction r = new IncAction();
3242 +        CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
3243 +        assertTrue(f.cancel(true));
3244 +        checkCompletedWithWrappedCancellationException(g);
3245 +    }
3246 +
3247 +    // other static methods
3248 +
3249 +    /**
3250 +     * allOf(no component futures) returns a future completed normally
3251 +     * with the value null
3252 +     */
3253 +    public void testAllOf_empty() throws Exception {
3254 +        CompletableFuture<Void> f = CompletableFuture.allOf();
3255 +        checkCompletedNormally(f, null);
3256 +    }
3257 +
3258 +    /**
3259 +     * allOf returns a future completed normally with the value null
3260 +     * when all components complete normally
3261 +     */
3262 +    public void testAllOf_normal() throws Exception {
3263 +        for (int k = 1; k < 20; ++k) {
3264 +            CompletableFuture<Integer>[] fs = (CompletableFuture<Integer>[]) new CompletableFuture[k];
3265 +            for (int i = 0; i < k; ++i)
3266 +                fs[i] = new CompletableFuture<>();
3267 +            CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3268 +            for (int i = 0; i < k; ++i) {
3269 +                checkIncomplete(f);
3270 +                checkIncomplete(CompletableFuture.allOf(fs));
3271 +                fs[i].complete(one);
3272 +            }
3273 +            checkCompletedNormally(f, null);
3274 +            checkCompletedNormally(CompletableFuture.allOf(fs), null);
3275 +        }
3276 +    }
3277 +
3278 +    /**
3279 +     * anyOf(no component futures) returns an incomplete future
3280 +     */
3281 +    public void testAnyOf_empty() throws Exception {
3282 +        CompletableFuture<Object> f = CompletableFuture.anyOf();
3283 +        checkIncomplete(f);
3284 +    }
3285 +
3286 +    /**
3287 +     * anyOf returns a future completed normally with a value when
3288 +     * a component future does
3289 +     */
3290 +    public void testAnyOf_normal() throws Exception {
3291 +        for (int k = 0; k < 10; ++k) {
3292 +            CompletableFuture[] fs = new CompletableFuture[k];
3293 +            for (int i = 0; i < k; ++i)
3294 +                fs[i] = new CompletableFuture<>();
3295 +            CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3296 +            checkIncomplete(f);
3297 +            for (int i = 0; i < k; ++i) {
3298 +                fs[i].complete(one);
3299 +                checkCompletedNormally(f, one);
3300 +                checkCompletedNormally(CompletableFuture.anyOf(fs), one);
3301 +            }
3302 +        }
3303 +    }
3304 +
3305 +    /**
3306 +     * anyOf result completes exceptionally when any component does.
3307 +     */
3308 +    public void testAnyOf_exceptional() throws Exception {
3309 +        for (int k = 0; k < 10; ++k) {
3310 +            CompletableFuture[] fs = new CompletableFuture[k];
3311 +            for (int i = 0; i < k; ++i)
3312 +                fs[i] = new CompletableFuture<>();
3313 +            CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3314 +            checkIncomplete(f);
3315 +            for (int i = 0; i < k; ++i) {
3316 +                fs[i].completeExceptionally(new CFException());
3317 +                checkCompletedWithWrappedCFException(f);
3318 +                checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3319 +            }
3320 +        }
3321 +    }
3322 +
3323 +    /**
3324 +     * Completion methods throw NullPointerException with null arguments
3325 +     */
3326 +    public void testNPE() {
3327 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3328 +        CompletableFuture<Integer> g = new CompletableFuture<>();
3329 +        CompletableFuture<Integer> nullFuture = (CompletableFuture<Integer>)null;
3330 +        CompletableFuture<?> h;
3331 +        ThreadExecutor exec = new ThreadExecutor();
3332 +
3333 +        Runnable[] throwingActions = {
3334 +            () -> CompletableFuture.supplyAsync(null),
3335 +            () -> CompletableFuture.supplyAsync(null, exec),
3336 +            () -> CompletableFuture.supplyAsync(supplyOne, null),
3337 +
3338 +            () -> CompletableFuture.runAsync(null),
3339 +            () -> CompletableFuture.runAsync(null, exec),
3340 +            () -> CompletableFuture.runAsync(() -> {}, null),
3341 +
3342 +            () -> f.completeExceptionally(null),
3343 +
3344 +            () -> f.thenApply(null),
3345 +            () -> f.thenApplyAsync(null),
3346 +            () -> f.thenApplyAsync((x) -> x, null),
3347 +            () -> f.thenApplyAsync(null, exec),
3348 +
3349 +            () -> f.thenAccept(null),
3350 +            () -> f.thenAcceptAsync(null),
3351 +            () -> f.thenAcceptAsync((x) -> {} , null),
3352 +            () -> f.thenAcceptAsync(null, exec),
3353 +
3354 +            () -> f.thenRun(null),
3355 +            () -> f.thenRunAsync(null),
3356 +            () -> f.thenRunAsync(() -> {} , null),
3357 +            () -> f.thenRunAsync(null, exec),
3358 +
3359 +            () -> f.thenCombine(g, null),
3360 +            () -> f.thenCombineAsync(g, null),
3361 +            () -> f.thenCombineAsync(g, null, exec),
3362 +            () -> f.thenCombine(nullFuture, (x, y) -> x),
3363 +            () -> f.thenCombineAsync(nullFuture, (x, y) -> x),
3364 +            () -> f.thenCombineAsync(nullFuture, (x, y) -> x, exec),
3365 +            () -> f.thenCombineAsync(g, (x, y) -> x, null),
3366 +
3367 +            () -> f.thenAcceptBoth(g, null),
3368 +            () -> f.thenAcceptBothAsync(g, null),
3369 +            () -> f.thenAcceptBothAsync(g, null, exec),
3370 +            () -> f.thenAcceptBoth(nullFuture, (x, y) -> {}),
3371 +            () -> f.thenAcceptBothAsync(nullFuture, (x, y) -> {}),
3372 +            () -> f.thenAcceptBothAsync(nullFuture, (x, y) -> {}, exec),
3373 +            () -> f.thenAcceptBothAsync(g, (x, y) -> {}, null),
3374 +
3375 +            () -> f.runAfterBoth(g, null),
3376 +            () -> f.runAfterBothAsync(g, null),
3377 +            () -> f.runAfterBothAsync(g, null, exec),
3378 +            () -> f.runAfterBoth(nullFuture, () -> {}),
3379 +            () -> f.runAfterBothAsync(nullFuture, () -> {}),
3380 +            () -> f.runAfterBothAsync(nullFuture, () -> {}, exec),
3381 +            () -> f.runAfterBothAsync(g, () -> {}, null),
3382 +
3383 +            () -> f.applyToEither(g, null),
3384 +            () -> f.applyToEitherAsync(g, null),
3385 +            () -> f.applyToEitherAsync(g, null, exec),
3386 +            () -> f.applyToEither(nullFuture, (x) -> x),
3387 +            () -> f.applyToEitherAsync(nullFuture, (x) -> x),
3388 +            () -> f.applyToEitherAsync(nullFuture, (x) -> x, exec),
3389 +            () -> f.applyToEitherAsync(g, (x) -> x, null),
3390 +
3391 +            () -> f.acceptEither(g, null),
3392 +            () -> f.acceptEitherAsync(g, null),
3393 +            () -> f.acceptEitherAsync(g, null, exec),
3394 +            () -> f.acceptEither(nullFuture, (x) -> {}),
3395 +            () -> f.acceptEitherAsync(nullFuture, (x) -> {}),
3396 +            () -> f.acceptEitherAsync(nullFuture, (x) -> {}, exec),
3397 +            () -> f.acceptEitherAsync(g, (x) -> {}, null),
3398 +
3399 +            () -> f.runAfterEither(g, null),
3400 +            () -> f.runAfterEitherAsync(g, null),
3401 +            () -> f.runAfterEitherAsync(g, null, exec),
3402 +            () -> f.runAfterEither(nullFuture, () -> {}),
3403 +            () -> f.runAfterEitherAsync(nullFuture, () -> {}),
3404 +            () -> f.runAfterEitherAsync(nullFuture, () -> {}, exec),
3405 +            () -> f.runAfterEitherAsync(g, () -> {}, null),
3406 +
3407 +            () -> f.thenCompose(null),
3408 +            () -> f.thenComposeAsync(null),
3409 +            () -> f.thenComposeAsync(new CompletableFutureInc(), null),
3410 +            () -> f.thenComposeAsync(null, exec),
3411 +
3412 +            () -> f.exceptionally(null),
3413 +
3414 +            () -> f.handle(null),
3415 +
3416 +            () -> CompletableFuture.allOf((CompletableFuture<?>)null),
3417 +            () -> CompletableFuture.allOf((CompletableFuture<?>[])null),
3418 +            () -> CompletableFuture.allOf(f, null),
3419 +            () -> CompletableFuture.allOf(null, f),
3420 +
3421 +            () -> CompletableFuture.anyOf((CompletableFuture<?>)null),
3422 +            () -> CompletableFuture.anyOf((CompletableFuture<?>[])null),
3423 +            () -> CompletableFuture.anyOf(f, null),
3424 +            () -> CompletableFuture.anyOf(null, f),
3425 +
3426 +            () -> f.obtrudeException(null),
3427 +        };
3428 +
3429 +        assertThrows(NullPointerException.class, throwingActions);
3430 +        assertEquals(0, exec.count.get());
3431 +    }
3432 +
3433 +    /**
3434 +     * toCompletableFuture returns this CompletableFuture.
3435 +     */
3436 +    public void testToCompletableFuture() {
3437 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3438 +        assertSame(f, f.toCompletableFuture());
3439 +    }
3440 +
3441 +    /**
3442 +     * whenComplete action executes on normal completion, propagating
3443 +     * source result.
3444 +     */
3445 +    public void testWhenComplete_normalCompletion1() {
3446 +        for (ExecutionMode m : ExecutionMode.values())
3447 +        for (boolean createIncomplete : new boolean[] { true, false })
3448 +        for (Integer v1 : new Integer[] { 1, null })
3449 +    {
3450 +        final AtomicInteger a = new AtomicInteger(0);
3451 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
3452 +        if (!createIncomplete) f.complete(v1);
3453 +        final CompletableFuture<Integer> g = m.whenComplete
3454 +            (f,
3455 +             (Integer x, Throwable t) -> {
3456 +                threadAssertSame(x, v1);
3457 +                threadAssertNull(t);
3458 +                a.getAndIncrement();
3459 +            });
3460 +        if (createIncomplete) f.complete(v1);
3461 +
3462 +        checkCompletedNormally(g, v1);
3463 +        checkCompletedNormally(f, v1);
3464 +        assertEquals(1, a.get());
3465 +    }}
3466 +
3467 +    /**
3468 +     * whenComplete action executes on exceptional completion, propagating
3469 +     * source result.
3470 +     */
3471 +    public void testWhenComplete_exceptionalCompletion() {
3472 +        for (ExecutionMode m : ExecutionMode.values())
3473 +        for (boolean createIncomplete : new boolean[] { true, false })
3474 +        for (Integer v1 : new Integer[] { 1, null })
3475 +    {
3476 +        final AtomicInteger a = new AtomicInteger(0);
3477 +        final CFException ex = new CFException();
3478 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
3479 +        if (!createIncomplete) f.completeExceptionally(ex);
3480 +        final CompletableFuture<Integer> g = m.whenComplete
3481 +            (f,
3482 +             (Integer x, Throwable t) -> {
3483 +                threadAssertNull(x);
3484 +                threadAssertSame(t, ex);
3485 +                a.getAndIncrement();
3486 +            });
3487 +        if (createIncomplete) f.completeExceptionally(ex);
3488 +        checkCompletedWithWrappedCFException(f, ex);
3489 +        checkCompletedWithWrappedCFException(g, ex);
3490 +        assertEquals(1, a.get());
3491 +    }}
3492 +
3493 +    /**
3494 +     * whenComplete action executes on cancelled source, propagating
3495 +     * CancellationException.
3496 +     */
3497 +    public void testWhenComplete_sourceCancelled() {
3498 +        for (ExecutionMode m : ExecutionMode.values())
3499 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3500 +        for (boolean createIncomplete : new boolean[] { true, false })
3501 +    {
3502 +        final AtomicInteger a = new AtomicInteger(0);
3503 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
3504 +        if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
3505 +        final CompletableFuture<Integer> g = m.whenComplete
3506 +            (f,
3507 +             (Integer x, Throwable t) -> {
3508 +                threadAssertNull(x);
3509 +                threadAssertTrue(t instanceof CancellationException);
3510 +                a.getAndIncrement();
3511 +            });
3512 +        if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
3513 +
3514 +        //try { g.join(); } catch (Throwable t) { throw new Error(t); }
3515 +        checkCompletedWithWrappedCancellationException(g);
3516 +        checkCancelled(f);
3517 +        assertEquals(1, a.get());
3518 +    }}
3519 +
3520 +    /**
3521 +     * If a whenComplete action throws an exception when triggered by
3522 +     * a normal completion, it completes exceptionally
3523 +     */
3524 +    public void testWhenComplete_actionFailed() {
3525 +        for (boolean createIncomplete : new boolean[] { true, false })
3526 +        for (ExecutionMode m : ExecutionMode.values())
3527 +        for (Integer v1 : new Integer[] { 1, null })
3528 +    {
3529 +        final AtomicInteger a = new AtomicInteger(0);
3530 +        final CFException ex = new CFException();
3531 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
3532 +        if (!createIncomplete) f.complete(v1);
3533 +        final CompletableFuture<Integer> g = m.whenComplete
3534 +            (f,
3535 +             (Integer x, Throwable t) -> {
3536 +                threadAssertSame(x, v1);
3537 +                threadAssertNull(t);
3538 +                a.getAndIncrement();
3539 +                throw ex;
3540 +            });
3541 +        if (createIncomplete) f.complete(v1);
3542 +        checkCompletedNormally(f, v1);
3543 +        checkCompletedWithWrappedCFException(g, ex);
3544 +        assertEquals(1, a.get());
3545 +    }}
3546 +
3547 +    /**
3548 +     * If a whenComplete action throws an exception when triggered by
3549 +     * a source completion that also throws an exception, the source
3550 +     * exception takes precedence.
3551 +     */
3552 +    public void testWhenComplete_actionFailedSourceFailed() {
3553 +        for (boolean createIncomplete : new boolean[] { true, false })
3554 +        for (ExecutionMode m : ExecutionMode.values())
3555 +        for (Integer v1 : new Integer[] { 1, null })
3556 +    {
3557 +        final AtomicInteger a = new AtomicInteger(0);
3558 +        final CFException ex1 = new CFException();
3559 +        final CFException ex2 = new CFException();
3560 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
3561 +
3562 +        if (!createIncomplete) f.completeExceptionally(ex1);
3563 +        final CompletableFuture<Integer> g = m.whenComplete
3564 +            (f,
3565 +             (Integer x, Throwable t) -> {
3566 +                threadAssertSame(t, ex1);
3567 +                threadAssertNull(x);
3568 +                a.getAndIncrement();
3569 +                throw ex2;
3570 +            });
3571 +        if (createIncomplete) f.completeExceptionally(ex1);
3572 +
3573 +        checkCompletedWithWrappedCFException(f, ex1);
3574 +        checkCompletedWithWrappedCFException(g, ex1);
3575 +        assertEquals(1, a.get());
3576 +    }}
3577 +
3578   }

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