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Comparing jsr166/src/test/tck/CompletableFutureTest.java (file contents):
Revision 1.2 by jsr166, Wed Feb 6 20:29:55 2013 UTC vs.
Revision 1.76 by jsr166, Sat Jun 7 21:45:13 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.ForkJoinPool;
21 + import java.util.concurrent.ForkJoinTask;
22   import java.util.concurrent.TimeoutException;
23   import java.util.concurrent.atomic.AtomicInteger;
24   import static java.util.concurrent.TimeUnit.MILLISECONDS;
25   import static java.util.concurrent.TimeUnit.SECONDS;
26   import java.util.*;
27 + import java.util.function.Supplier;
28 + import java.util.function.Consumer;
29 + import java.util.function.BiConsumer;
30 + import java.util.function.Function;
31 + import java.util.function.BiFunction;
32  
33   public class CompletableFutureTest extends JSR166TestCase {
34  
# Line 28 | Line 39 | public class CompletableFutureTest exten
39          return new TestSuite(CompletableFutureTest.class);
40      }
41  
42 +    static class CFException extends RuntimeException {}
43 +
44 +    void checkIncomplete(CompletableFuture<?> f) {
45 +        assertFalse(f.isDone());
46 +        assertFalse(f.isCancelled());
47 +        assertTrue(f.toString().contains("[Not completed]"));
48 +        try {
49 +            assertNull(f.getNow(null));
50 +        } catch (Throwable fail) { threadUnexpectedException(fail); }
51 +        try {
52 +            f.get(0L, SECONDS);
53 +            shouldThrow();
54 +        }
55 +        catch (TimeoutException success) {}
56 +        catch (Throwable fail) { threadUnexpectedException(fail); }
57 +    }
58 +
59 +    <T> void checkCompletedNormally(CompletableFuture<T> f, T value) {
60 +        try {
61 +            assertEquals(value, f.get(LONG_DELAY_MS, MILLISECONDS));
62 +        } catch (Throwable fail) { threadUnexpectedException(fail); }
63 +        try {
64 +            assertEquals(value, f.join());
65 +        } catch (Throwable fail) { threadUnexpectedException(fail); }
66 +        try {
67 +            assertEquals(value, f.getNow(null));
68 +        } catch (Throwable fail) { threadUnexpectedException(fail); }
69 +        try {
70 +            assertEquals(value, f.get());
71 +        } catch (Throwable fail) { threadUnexpectedException(fail); }
72 +        assertTrue(f.isDone());
73 +        assertFalse(f.isCancelled());
74 +        assertFalse(f.isCompletedExceptionally());
75 +        assertTrue(f.toString().contains("[Completed normally]"));
76 +    }
77 +
78 +    void checkCompletedWithWrappedCFException(CompletableFuture<?> f) {
79 +        try {
80 +            f.get(LONG_DELAY_MS, MILLISECONDS);
81 +            shouldThrow();
82 +        } catch (ExecutionException success) {
83 +            assertTrue(success.getCause() instanceof CFException);
84 +        } catch (Throwable fail) { threadUnexpectedException(fail); }
85 +        try {
86 +            f.join();
87 +            shouldThrow();
88 +        } catch (CompletionException success) {
89 +            assertTrue(success.getCause() instanceof CFException);
90 +        }
91 +        try {
92 +            f.getNow(null);
93 +            shouldThrow();
94 +        } catch (CompletionException success) {
95 +            assertTrue(success.getCause() instanceof CFException);
96 +        }
97 +        try {
98 +            f.get();
99 +            shouldThrow();
100 +        } catch (ExecutionException success) {
101 +            assertTrue(success.getCause() instanceof CFException);
102 +        } catch (Throwable fail) { threadUnexpectedException(fail); }
103 +        assertTrue(f.isDone());
104 +        assertFalse(f.isCancelled());
105 +        assertTrue(f.toString().contains("[Completed exceptionally]"));
106 +    }
107 +
108 +    <U> void checkCompletedExceptionallyWithRootCause(CompletableFuture<U> f,
109 +                                                      Throwable ex) {
110 +        try {
111 +            f.get(LONG_DELAY_MS, MILLISECONDS);
112 +            shouldThrow();
113 +        } catch (ExecutionException success) {
114 +            assertSame(ex, success.getCause());
115 +        } catch (Throwable fail) { threadUnexpectedException(fail); }
116 +        try {
117 +            f.join();
118 +            shouldThrow();
119 +        } catch (CompletionException success) {
120 +            assertSame(ex, success.getCause());
121 +        }
122 +        try {
123 +            f.getNow(null);
124 +            shouldThrow();
125 +        } catch (CompletionException success) {
126 +            assertSame(ex, success.getCause());
127 +        }
128 +        try {
129 +            f.get();
130 +            shouldThrow();
131 +        } catch (ExecutionException success) {
132 +            assertSame(ex, success.getCause());
133 +        } catch (Throwable fail) { threadUnexpectedException(fail); }
134 +
135 +        assertTrue(f.isDone());
136 +        assertFalse(f.isCancelled());
137 +        assertTrue(f.toString().contains("[Completed exceptionally]"));
138 +    }
139 +
140 +    <U> void checkCompletedWithWrappedException(CompletableFuture<U> f,
141 +                                                Throwable ex) {
142 +        checkCompletedExceptionallyWithRootCause(f, ex);
143 +        try {
144 +            CompletableFuture<Throwable> spy = f.handle
145 +                ((U u, Throwable t) -> t);
146 +            assertTrue(spy.join() instanceof CompletionException);
147 +            assertSame(ex, spy.join().getCause());
148 +        } catch (Throwable fail) { threadUnexpectedException(fail); }
149 +    }
150 +
151 +    <U> void checkCompletedExceptionally(CompletableFuture<U> f, Throwable ex) {
152 +        checkCompletedExceptionallyWithRootCause(f, ex);
153 +        try {
154 +            CompletableFuture<Throwable> spy = f.handle
155 +                ((U u, Throwable t) -> t);
156 +            assertSame(ex, spy.join());
157 +        } catch (Throwable fail) { threadUnexpectedException(fail); }
158 +    }
159 +
160 +    void checkCancelled(CompletableFuture<?> f) {
161 +        try {
162 +            f.get(LONG_DELAY_MS, MILLISECONDS);
163 +            shouldThrow();
164 +        } catch (CancellationException success) {
165 +        } catch (Throwable fail) { threadUnexpectedException(fail); }
166 +        try {
167 +            f.join();
168 +            shouldThrow();
169 +        } catch (CancellationException success) {}
170 +        try {
171 +            f.getNow(null);
172 +            shouldThrow();
173 +        } catch (CancellationException success) {}
174 +        try {
175 +            f.get();
176 +            shouldThrow();
177 +        } catch (CancellationException success) {
178 +        } catch (Throwable fail) { threadUnexpectedException(fail); }
179 +        assertTrue(f.isDone());
180 +        assertTrue(f.isCompletedExceptionally());
181 +        assertTrue(f.isCancelled());
182 +        assertTrue(f.toString().contains("[Completed exceptionally]"));
183 +    }
184 +
185 +    void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) {
186 +        try {
187 +            f.get(LONG_DELAY_MS, MILLISECONDS);
188 +            shouldThrow();
189 +        } catch (ExecutionException success) {
190 +            assertTrue(success.getCause() instanceof CancellationException);
191 +        } catch (Throwable fail) { threadUnexpectedException(fail); }
192 +        try {
193 +            f.join();
194 +            shouldThrow();
195 +        } catch (CompletionException success) {
196 +            assertTrue(success.getCause() instanceof CancellationException);
197 +        }
198 +        try {
199 +            f.getNow(null);
200 +            shouldThrow();
201 +        } catch (CompletionException success) {
202 +            assertTrue(success.getCause() instanceof CancellationException);
203 +        }
204 +        try {
205 +            f.get();
206 +            shouldThrow();
207 +        } catch (ExecutionException success) {
208 +            assertTrue(success.getCause() instanceof CancellationException);
209 +        } catch (Throwable fail) { threadUnexpectedException(fail); }
210 +        assertTrue(f.isDone());
211 +        assertFalse(f.isCancelled());
212 +        assertTrue(f.isCompletedExceptionally());
213 +        assertTrue(f.toString().contains("[Completed exceptionally]"));
214 +    }
215 +
216 +    /**
217 +     * A newly constructed CompletableFuture is incomplete, as indicated
218 +     * by methods isDone, isCancelled, and getNow
219 +     */
220 +    public void testConstructor() {
221 +        CompletableFuture<Integer> f = new CompletableFuture<>();
222 +        checkIncomplete(f);
223 +    }
224 +
225 +    /**
226 +     * complete completes normally, as indicated by methods isDone,
227 +     * isCancelled, join, get, and getNow
228 +     */
229 +    public void testComplete() {
230 +        CompletableFuture<Integer> f = new CompletableFuture<>();
231 +        checkIncomplete(f);
232 +        f.complete(one);
233 +        checkCompletedNormally(f, one);
234 +    }
235 +
236 +    /**
237 +     * completeExceptionally completes exceptionally, as indicated by
238 +     * methods isDone, isCancelled, join, get, and getNow
239 +     */
240 +    public void testCompleteExceptionally() {
241 +        CompletableFuture<Integer> f = new CompletableFuture<>();
242 +        CFException ex = new CFException();
243 +        checkIncomplete(f);
244 +        f.completeExceptionally(ex);
245 +        checkCompletedExceptionally(f, ex);
246 +    }
247 +
248 +    /**
249 +     * cancel completes exceptionally and reports cancelled, as indicated by
250 +     * methods isDone, isCancelled, join, get, and getNow
251 +     */
252 +    public void testCancel() {
253 +        CompletableFuture<Integer> f = new CompletableFuture<>();
254 +        checkIncomplete(f);
255 +        assertTrue(f.cancel(true));
256 +        checkCancelled(f);
257 +    }
258 +
259 +    /**
260 +     * obtrudeValue forces completion with given value
261 +     */
262 +    public void testObtrudeValue() {
263 +        CompletableFuture<Integer> f = new CompletableFuture<>();
264 +        checkIncomplete(f);
265 +        f.complete(one);
266 +        checkCompletedNormally(f, one);
267 +        f.obtrudeValue(three);
268 +        checkCompletedNormally(f, three);
269 +        f.obtrudeValue(two);
270 +        checkCompletedNormally(f, two);
271 +        f = new CompletableFuture<>();
272 +        f.obtrudeValue(three);
273 +        checkCompletedNormally(f, three);
274 +        f.obtrudeValue(null);
275 +        checkCompletedNormally(f, null);
276 +        f = new CompletableFuture<>();
277 +        f.completeExceptionally(new CFException());
278 +        f.obtrudeValue(four);
279 +        checkCompletedNormally(f, four);
280 +    }
281 +
282 +    /**
283 +     * obtrudeException forces completion with given exception
284 +     */
285 +    public void testObtrudeException() {
286 +        for (Integer v1 : new Integer[] { 1, null })
287 +    {
288 +        CFException ex;
289 +        CompletableFuture<Integer> f;
290 +
291 +        f = new CompletableFuture<>();
292 +        f.complete(v1);
293 +        for (int i = 0; i < 2; i++) {
294 +            f.obtrudeException(ex = new CFException());
295 +            checkCompletedExceptionally(f, ex);
296 +        }
297 +
298 +        f = new CompletableFuture<>();
299 +        for (int i = 0; i < 2; i++) {
300 +            f.obtrudeException(ex = new CFException());
301 +            checkCompletedExceptionally(f, ex);
302 +        }
303 +
304 +        f = new CompletableFuture<>();
305 +        f.completeExceptionally(ex = new CFException());
306 +        f.obtrudeValue(v1);
307 +        checkCompletedNormally(f, v1);
308 +        f.obtrudeException(ex = new CFException());
309 +        checkCompletedExceptionally(f, ex);
310 +        f.completeExceptionally(new CFException());
311 +        checkCompletedExceptionally(f, ex);
312 +        f.complete(v1);
313 +        checkCompletedExceptionally(f, ex);
314 +    }}
315 +
316 +    /**
317 +     * getNumberOfDependents returns number of dependent tasks
318 +     */
319 +    public void testGetNumberOfDependents() {
320 +        for (ExecutionMode m : ExecutionMode.values())
321 +    {
322 +        CompletableFuture<Integer> f = new CompletableFuture<>();
323 +        assertEquals(0, f.getNumberOfDependents());
324 +        final CompletableFuture<Void> g = m.thenRun(f, new Noop(m));
325 +        assertEquals(1, f.getNumberOfDependents());
326 +        assertEquals(0, g.getNumberOfDependents());
327 +        final CompletableFuture<Void> h = m.thenRun(f, new Noop(m));
328 +        assertEquals(2, f.getNumberOfDependents());
329 +        assertEquals(0, h.getNumberOfDependents());
330 +        f.complete(1);
331 +        checkCompletedNormally(g, null);
332 +        checkCompletedNormally(h, null);
333 +        assertEquals(0, f.getNumberOfDependents());
334 +        assertEquals(0, g.getNumberOfDependents());
335 +        assertEquals(0, h.getNumberOfDependents());
336 +    }}
337 +
338 +    /**
339 +     * toString indicates current completion state
340 +     */
341      public void testToString() {
342          CompletableFuture<String> f;
343  
# Line 40 | Line 350 | public class CompletableFutureTest exten
350          f = new CompletableFuture<String>();
351          f.completeExceptionally(new IndexOutOfBoundsException());
352          assertTrue(f.toString().contains("[Completed exceptionally]"));
353 +
354 +        f = new CompletableFuture<String>();
355 +        f.cancel(true);
356 +        assertTrue(f.toString().contains("[Completed exceptionally]"));
357 +
358 +        f = new CompletableFuture<String>();
359 +        f.cancel(false);
360 +        assertTrue(f.toString().contains("[Completed exceptionally]"));
361 +    }
362 +
363 +    /**
364 +     * completedFuture returns a completed CompletableFuture with given value
365 +     */
366 +    public void testCompletedFuture() {
367 +        CompletableFuture<String> f = CompletableFuture.completedFuture("test");
368 +        checkCompletedNormally(f, "test");
369 +    }
370 +
371 +    abstract class CheckedAction {
372 +        int invocationCount = 0;
373 +        final ExecutionMode m;
374 +        CheckedAction(ExecutionMode m) { this.m = m; }
375 +        void invoked() {
376 +            m.checkExecutionMode();
377 +            assertEquals(0, invocationCount++);
378 +        }
379 +        void assertNotInvoked() { assertEquals(0, invocationCount); }
380 +        void assertInvoked() { assertEquals(1, invocationCount); }
381 +    }
382 +
383 +    abstract class CheckedIntegerAction extends CheckedAction {
384 +        Integer value;
385 +        CheckedIntegerAction(ExecutionMode m) { super(m); }
386 +        void assertValue(Integer expected) {
387 +            assertInvoked();
388 +            assertEquals(expected, value);
389 +        }
390 +    }
391 +
392 +    class IntegerSupplier extends CheckedAction
393 +        implements Supplier<Integer>
394 +    {
395 +        final Integer value;
396 +        IntegerSupplier(ExecutionMode m, Integer value) {
397 +            super(m);
398 +            this.value = value;
399 +        }
400 +        public Integer get() {
401 +            invoked();
402 +            return value;
403 +        }
404 +    }
405 +
406 +    // A function that handles and produces null values as well.
407 +    static Integer inc(Integer x) {
408 +        return (x == null) ? null : x + 1;
409 +    }
410 +
411 +    class NoopConsumer extends CheckedIntegerAction
412 +        implements Consumer<Integer>
413 +    {
414 +        NoopConsumer(ExecutionMode m) { super(m); }
415 +        public void accept(Integer x) {
416 +            invoked();
417 +            value = x;
418 +        }
419      }
420 +
421 +    class IncFunction extends CheckedIntegerAction
422 +        implements Function<Integer,Integer>
423 +    {
424 +        IncFunction(ExecutionMode m) { super(m); }
425 +        public Integer apply(Integer x) {
426 +            invoked();
427 +            return value = inc(x);
428 +        }
429 +    }
430 +
431 +    // Choose non-commutative actions for better coverage
432 +    // A non-commutative function that handles and produces null values as well.
433 +    static Integer subtract(Integer x, Integer y) {
434 +        return (x == null && y == null) ? null :
435 +            ((x == null) ? 42 : x.intValue())
436 +            - ((y == null) ? 99 : y.intValue());
437 +    }
438 +
439 +    class SubtractAction extends CheckedIntegerAction
440 +        implements BiConsumer<Integer, Integer>
441 +    {
442 +        SubtractAction(ExecutionMode m) { super(m); }
443 +        public void accept(Integer x, Integer y) {
444 +            invoked();
445 +            value = subtract(x, y);
446 +        }
447 +    }
448 +
449 +    class SubtractFunction extends CheckedIntegerAction
450 +        implements BiFunction<Integer, Integer, Integer>
451 +    {
452 +        SubtractFunction(ExecutionMode m) { super(m); }
453 +        public Integer apply(Integer x, Integer y) {
454 +            invoked();
455 +            return value = subtract(x, y);
456 +        }
457 +    }
458 +
459 +    class Noop extends CheckedAction implements Runnable {
460 +        Noop(ExecutionMode m) { super(m); }
461 +        public void run() {
462 +            invoked();
463 +        }
464 +    }
465 +
466 +    class FailingSupplier extends CheckedAction
467 +        implements Supplier<Integer>
468 +    {
469 +        FailingSupplier(ExecutionMode m) { super(m); }
470 +        public Integer get() {
471 +            invoked();
472 +            throw new CFException();
473 +        }
474 +    }
475 +
476 +    class FailingConsumer extends CheckedIntegerAction
477 +        implements Consumer<Integer>
478 +    {
479 +        FailingConsumer(ExecutionMode m) { super(m); }
480 +        public void accept(Integer x) {
481 +            invoked();
482 +            value = x;
483 +            throw new CFException();
484 +        }
485 +    }
486 +
487 +    class FailingBiConsumer extends CheckedIntegerAction
488 +        implements BiConsumer<Integer, Integer>
489 +    {
490 +        FailingBiConsumer(ExecutionMode m) { super(m); }
491 +        public void accept(Integer x, Integer y) {
492 +            invoked();
493 +            value = subtract(x, y);
494 +            throw new CFException();
495 +        }
496 +    }
497 +
498 +    class FailingFunction extends CheckedIntegerAction
499 +        implements Function<Integer, Integer>
500 +    {
501 +        FailingFunction(ExecutionMode m) { super(m); }
502 +        public Integer apply(Integer x) {
503 +            invoked();
504 +            value = x;
505 +            throw new CFException();
506 +        }
507 +    }
508 +
509 +    class FailingBiFunction extends CheckedIntegerAction
510 +        implements BiFunction<Integer, Integer, Integer>
511 +    {
512 +        FailingBiFunction(ExecutionMode m) { super(m); }
513 +        public Integer apply(Integer x, Integer y) {
514 +            invoked();
515 +            value = subtract(x, y);
516 +            throw new CFException();
517 +        }
518 +    }
519 +
520 +    class FailingRunnable extends CheckedAction implements Runnable {
521 +        FailingRunnable(ExecutionMode m) { super(m); }
522 +        public void run() {
523 +            invoked();
524 +            throw new CFException();
525 +        }
526 +    }
527 +
528 +
529 +    class CompletableFutureInc extends CheckedIntegerAction
530 +        implements Function<Integer, CompletableFuture<Integer>>
531 +    {
532 +        CompletableFutureInc(ExecutionMode m) { super(m); }
533 +        public CompletableFuture<Integer> apply(Integer x) {
534 +            invoked();
535 +            value = x;
536 +            CompletableFuture<Integer> f = new CompletableFuture<>();
537 +            f.complete(inc(x));
538 +            return f;
539 +        }
540 +    }
541 +
542 +    class FailingCompletableFutureFunction extends CheckedIntegerAction
543 +        implements Function<Integer, CompletableFuture<Integer>>
544 +    {
545 +        FailingCompletableFutureFunction(ExecutionMode m) { super(m); }
546 +        public CompletableFuture<Integer> apply(Integer x) {
547 +            invoked();
548 +            value = x;
549 +            throw new CFException();
550 +        }
551 +    }
552 +
553 +    // Used for explicit executor tests
554 +    static final class ThreadExecutor implements Executor {
555 +        final AtomicInteger count = new AtomicInteger(0);
556 +        static final ThreadGroup tg = new ThreadGroup("ThreadExecutor");
557 +        static boolean startedCurrentThread() {
558 +            return Thread.currentThread().getThreadGroup() == tg;
559 +        }
560 +
561 +        public void execute(Runnable r) {
562 +            count.getAndIncrement();
563 +            new Thread(tg, r).start();
564 +        }
565 +    }
566 +
567 +    /**
568 +     * Permits the testing of parallel code for the 3 different
569 +     * execution modes without copy/pasting all the test methods.
570 +     */
571 +    enum ExecutionMode {
572 +        DEFAULT {
573 +            public void checkExecutionMode() {
574 +                assertFalse(ThreadExecutor.startedCurrentThread());
575 +                assertNull(ForkJoinTask.getPool());
576 +            }
577 +            public CompletableFuture<Void> runAsync(Runnable a) {
578 +                throw new UnsupportedOperationException();
579 +            }
580 +            public <U> CompletableFuture<U> supplyAsync(Supplier<U> a) {
581 +                throw new UnsupportedOperationException();
582 +            }
583 +            public <T> CompletableFuture<Void> thenRun
584 +                (CompletableFuture<T> f, Runnable a) {
585 +                return f.thenRun(a);
586 +            }
587 +            public <T> CompletableFuture<Void> thenAccept
588 +                (CompletableFuture<T> f, Consumer<? super T> a) {
589 +                return f.thenAccept(a);
590 +            }
591 +            public <T,U> CompletableFuture<U> thenApply
592 +                (CompletableFuture<T> f, Function<? super T,U> a) {
593 +                return f.thenApply(a);
594 +            }
595 +            public <T,U> CompletableFuture<U> thenCompose
596 +                (CompletableFuture<T> f,
597 +                 Function<? super T,? extends CompletionStage<U>> a) {
598 +                return f.thenCompose(a);
599 +            }
600 +            public <T,U> CompletableFuture<U> handle
601 +                (CompletableFuture<T> f,
602 +                 BiFunction<? super T,Throwable,? extends U> a) {
603 +                return f.handle(a);
604 +            }
605 +            public <T> CompletableFuture<T> whenComplete
606 +                (CompletableFuture<T> f,
607 +                 BiConsumer<? super T,? super Throwable> a) {
608 +                return f.whenComplete(a);
609 +            }
610 +            public <T,U> CompletableFuture<Void> runAfterBoth
611 +                (CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) {
612 +                return f.runAfterBoth(g, a);
613 +            }
614 +            public <T,U> CompletableFuture<Void> thenAcceptBoth
615 +                (CompletableFuture<T> f,
616 +                 CompletionStage<? extends U> g,
617 +                 BiConsumer<? super T,? super U> a) {
618 +                return f.thenAcceptBoth(g, a);
619 +            }
620 +            public <T,U,V> CompletableFuture<V> thenCombine
621 +                (CompletableFuture<T> f,
622 +                 CompletionStage<? extends U> g,
623 +                 BiFunction<? super T,? super U,? extends V> a) {
624 +                return f.thenCombine(g, a);
625 +            }
626 +            public <T> CompletableFuture<Void> runAfterEither
627 +                (CompletableFuture<T> f,
628 +                 CompletionStage<?> g,
629 +                 java.lang.Runnable a) {
630 +                return f.runAfterEither(g, a);
631 +            }
632 +            public <T> CompletableFuture<Void> acceptEither
633 +                (CompletableFuture<T> f,
634 +                 CompletionStage<? extends T> g,
635 +                 Consumer<? super T> a) {
636 +                return f.acceptEither(g, a);
637 +            }
638 +            public <T,U> CompletableFuture<U> applyToEither
639 +                (CompletableFuture<T> f,
640 +                 CompletionStage<? extends T> g,
641 +                 Function<? super T,U> a) {
642 +                return f.applyToEither(g, a);
643 +            }
644 +        },
645 +
646 +        ASYNC {
647 +            public void checkExecutionMode() {
648 +                assertSame(ForkJoinPool.commonPool(),
649 +                           ForkJoinTask.getPool());
650 +            }
651 +            public CompletableFuture<Void> runAsync(Runnable a) {
652 +                return CompletableFuture.runAsync(a);
653 +            }
654 +            public <U> CompletableFuture<U> supplyAsync(Supplier<U> a) {
655 +                return CompletableFuture.supplyAsync(a);
656 +            }
657 +            public <T> CompletableFuture<Void> thenRun
658 +                (CompletableFuture<T> f, Runnable a) {
659 +                return f.thenRunAsync(a);
660 +            }
661 +            public <T> CompletableFuture<Void> thenAccept
662 +                (CompletableFuture<T> f, Consumer<? super T> a) {
663 +                return f.thenAcceptAsync(a);
664 +            }
665 +            public <T,U> CompletableFuture<U> thenApply
666 +                (CompletableFuture<T> f, Function<? super T,U> a) {
667 +                return f.thenApplyAsync(a);
668 +            }
669 +            public <T,U> CompletableFuture<U> thenCompose
670 +                (CompletableFuture<T> f,
671 +                 Function<? super T,? extends CompletionStage<U>> a) {
672 +                return f.thenComposeAsync(a);
673 +            }
674 +            public <T,U> CompletableFuture<U> handle
675 +                (CompletableFuture<T> f,
676 +                 BiFunction<? super T,Throwable,? extends U> a) {
677 +                return f.handleAsync(a);
678 +            }
679 +            public <T> CompletableFuture<T> whenComplete
680 +                (CompletableFuture<T> f,
681 +                 BiConsumer<? super T,? super Throwable> a) {
682 +                return f.whenCompleteAsync(a);
683 +            }
684 +            public <T,U> CompletableFuture<Void> runAfterBoth
685 +                (CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) {
686 +                return f.runAfterBothAsync(g, a);
687 +            }
688 +            public <T,U> CompletableFuture<Void> thenAcceptBoth
689 +                (CompletableFuture<T> f,
690 +                 CompletionStage<? extends U> g,
691 +                 BiConsumer<? super T,? super U> a) {
692 +                return f.thenAcceptBothAsync(g, a);
693 +            }
694 +            public <T,U,V> CompletableFuture<V> thenCombine
695 +                (CompletableFuture<T> f,
696 +                 CompletionStage<? extends U> g,
697 +                 BiFunction<? super T,? super U,? extends V> a) {
698 +                return f.thenCombineAsync(g, a);
699 +            }
700 +            public <T> CompletableFuture<Void> runAfterEither
701 +                (CompletableFuture<T> f,
702 +                 CompletionStage<?> g,
703 +                 java.lang.Runnable a) {
704 +                return f.runAfterEitherAsync(g, a);
705 +            }
706 +            public <T> CompletableFuture<Void> acceptEither
707 +                (CompletableFuture<T> f,
708 +                 CompletionStage<? extends T> g,
709 +                 Consumer<? super T> a) {
710 +                return f.acceptEitherAsync(g, a);
711 +            }
712 +            public <T,U> CompletableFuture<U> applyToEither
713 +                (CompletableFuture<T> f,
714 +                 CompletionStage<? extends T> g,
715 +                 Function<? super T,U> a) {
716 +                return f.applyToEitherAsync(g, a);
717 +            }
718 +        },
719 +
720 +        EXECUTOR {
721 +            public void checkExecutionMode() {
722 +                assertTrue(ThreadExecutor.startedCurrentThread());
723 +            }
724 +            public CompletableFuture<Void> runAsync(Runnable a) {
725 +                return CompletableFuture.runAsync(a, new ThreadExecutor());
726 +            }
727 +            public <U> CompletableFuture<U> supplyAsync(Supplier<U> a) {
728 +                return CompletableFuture.supplyAsync(a, new ThreadExecutor());
729 +            }
730 +            public <T> CompletableFuture<Void> thenRun
731 +                (CompletableFuture<T> f, Runnable a) {
732 +                return f.thenRunAsync(a, new ThreadExecutor());
733 +            }
734 +            public <T> CompletableFuture<Void> thenAccept
735 +                (CompletableFuture<T> f, Consumer<? super T> a) {
736 +                return f.thenAcceptAsync(a, new ThreadExecutor());
737 +            }
738 +            public <T,U> CompletableFuture<U> thenApply
739 +                (CompletableFuture<T> f, Function<? super T,U> a) {
740 +                return f.thenApplyAsync(a, new ThreadExecutor());
741 +            }
742 +            public <T,U> CompletableFuture<U> thenCompose
743 +                (CompletableFuture<T> f,
744 +                 Function<? super T,? extends CompletionStage<U>> a) {
745 +                return f.thenComposeAsync(a, new ThreadExecutor());
746 +            }
747 +            public <T,U> CompletableFuture<U> handle
748 +                (CompletableFuture<T> f,
749 +                 BiFunction<? super T,Throwable,? extends U> a) {
750 +                return f.handleAsync(a, new ThreadExecutor());
751 +            }
752 +            public <T> CompletableFuture<T> whenComplete
753 +                (CompletableFuture<T> f,
754 +                 BiConsumer<? super T,? super Throwable> a) {
755 +                return f.whenCompleteAsync(a, new ThreadExecutor());
756 +            }
757 +            public <T,U> CompletableFuture<Void> runAfterBoth
758 +                (CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) {
759 +                return f.runAfterBothAsync(g, a, new ThreadExecutor());
760 +            }
761 +            public <T,U> CompletableFuture<Void> thenAcceptBoth
762 +                (CompletableFuture<T> f,
763 +                 CompletionStage<? extends U> g,
764 +                 BiConsumer<? super T,? super U> a) {
765 +                return f.thenAcceptBothAsync(g, a, new ThreadExecutor());
766 +            }
767 +            public <T,U,V> CompletableFuture<V> thenCombine
768 +                (CompletableFuture<T> f,
769 +                 CompletionStage<? extends U> g,
770 +                 BiFunction<? super T,? super U,? extends V> a) {
771 +                return f.thenCombineAsync(g, a, new ThreadExecutor());
772 +            }
773 +            public <T> CompletableFuture<Void> runAfterEither
774 +                (CompletableFuture<T> f,
775 +                 CompletionStage<?> g,
776 +                 java.lang.Runnable a) {
777 +                return f.runAfterEitherAsync(g, a, new ThreadExecutor());
778 +            }
779 +            public <T> CompletableFuture<Void> acceptEither
780 +                (CompletableFuture<T> f,
781 +                 CompletionStage<? extends T> g,
782 +                 Consumer<? super T> a) {
783 +                return f.acceptEitherAsync(g, a, new ThreadExecutor());
784 +            }
785 +            public <T,U> CompletableFuture<U> applyToEither
786 +                (CompletableFuture<T> f,
787 +                 CompletionStage<? extends T> g,
788 +                 Function<? super T,U> a) {
789 +                return f.applyToEitherAsync(g, a, new ThreadExecutor());
790 +            }
791 +        };
792 +
793 +        public abstract void checkExecutionMode();
794 +        public abstract CompletableFuture<Void> runAsync(Runnable a);
795 +        public abstract <U> CompletableFuture<U> supplyAsync(Supplier<U> a);
796 +        public abstract <T> CompletableFuture<Void> thenRun
797 +            (CompletableFuture<T> f, Runnable a);
798 +        public abstract <T> CompletableFuture<Void> thenAccept
799 +            (CompletableFuture<T> f, Consumer<? super T> a);
800 +        public abstract <T,U> CompletableFuture<U> thenApply
801 +            (CompletableFuture<T> f, Function<? super T,U> a);
802 +        public abstract <T,U> CompletableFuture<U> thenCompose
803 +            (CompletableFuture<T> f,
804 +             Function<? super T,? extends CompletionStage<U>> a);
805 +        public abstract <T,U> CompletableFuture<U> handle
806 +            (CompletableFuture<T> f,
807 +             BiFunction<? super T,Throwable,? extends U> a);
808 +        public abstract <T> CompletableFuture<T> whenComplete
809 +            (CompletableFuture<T> f,
810 +             BiConsumer<? super T,? super Throwable> a);
811 +        public abstract <T,U> CompletableFuture<Void> runAfterBoth
812 +            (CompletableFuture<T> f, CompletableFuture<U> g, Runnable a);
813 +        public abstract <T,U> CompletableFuture<Void> thenAcceptBoth
814 +            (CompletableFuture<T> f,
815 +             CompletionStage<? extends U> g,
816 +             BiConsumer<? super T,? super U> a);
817 +        public abstract <T,U,V> CompletableFuture<V> thenCombine
818 +            (CompletableFuture<T> f,
819 +             CompletionStage<? extends U> g,
820 +             BiFunction<? super T,? super U,? extends V> a);
821 +        public abstract <T> CompletableFuture<Void> runAfterEither
822 +            (CompletableFuture<T> f,
823 +             CompletionStage<?> g,
824 +             java.lang.Runnable a);
825 +        public abstract <T> CompletableFuture<Void> acceptEither
826 +            (CompletableFuture<T> f,
827 +             CompletionStage<? extends T> g,
828 +             Consumer<? super T> a);
829 +        public abstract <T,U> CompletableFuture<U> applyToEither
830 +            (CompletableFuture<T> f,
831 +             CompletionStage<? extends T> g,
832 +             Function<? super T,U> a);
833 +    }
834 +
835 +    /**
836 +     * exceptionally action is not invoked when source completes
837 +     * normally, and source result is propagated
838 +     */
839 +    public void testExceptionally_normalCompletion() {
840 +        for (boolean createIncomplete : new boolean[] { true, false })
841 +        for (Integer v1 : new Integer[] { 1, null })
842 +    {
843 +        final AtomicInteger a = new AtomicInteger(0);
844 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
845 +        if (!createIncomplete) f.complete(v1);
846 +        final CompletableFuture<Integer> g = f.exceptionally
847 +            ((Throwable t) -> {
848 +                // Should not be called
849 +                a.getAndIncrement();
850 +                throw new AssertionError();
851 +            });
852 +        if (createIncomplete) f.complete(v1);
853 +
854 +        checkCompletedNormally(g, v1);
855 +        checkCompletedNormally(f, v1);
856 +        assertEquals(0, a.get());
857 +    }}
858 +
859 +    /**
860 +     * exceptionally action completes with function value on source
861 +     * exception
862 +     */
863 +    public void testExceptionally_exceptionalCompletion() {
864 +        for (boolean createIncomplete : new boolean[] { true, false })
865 +        for (Integer v1 : new Integer[] { 1, null })
866 +    {
867 +        final AtomicInteger a = new AtomicInteger(0);
868 +        final CFException ex = new CFException();
869 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
870 +        if (!createIncomplete) f.completeExceptionally(ex);
871 +        final CompletableFuture<Integer> g = f.exceptionally
872 +            ((Throwable t) -> {
873 +                ExecutionMode.DEFAULT.checkExecutionMode();
874 +                threadAssertSame(t, ex);
875 +                a.getAndIncrement();
876 +                return v1;
877 +            });
878 +        if (createIncomplete) f.completeExceptionally(ex);
879 +
880 +        checkCompletedNormally(g, v1);
881 +        assertEquals(1, a.get());
882 +    }}
883 +
884 +    public void testExceptionally_exceptionalCompletionActionFailed() {
885 +        for (boolean createIncomplete : new boolean[] { true, false })
886 +        for (Integer v1 : new Integer[] { 1, null })
887 +    {
888 +        final AtomicInteger a = new AtomicInteger(0);
889 +        final CFException ex1 = new CFException();
890 +        final CFException ex2 = new CFException();
891 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
892 +        if (!createIncomplete) f.completeExceptionally(ex1);
893 +        final CompletableFuture<Integer> g = f.exceptionally
894 +            ((Throwable t) -> {
895 +                ExecutionMode.DEFAULT.checkExecutionMode();
896 +                threadAssertSame(t, ex1);
897 +                a.getAndIncrement();
898 +                throw ex2;
899 +            });
900 +        if (createIncomplete) f.completeExceptionally(ex1);
901 +
902 +        checkCompletedWithWrappedException(g, ex2);
903 +        assertEquals(1, a.get());
904 +    }}
905 +
906 +    /**
907 +     * whenComplete action executes on normal completion, propagating
908 +     * source result.
909 +     */
910 +    public void testWhenComplete_normalCompletion1() {
911 +        for (ExecutionMode m : ExecutionMode.values())
912 +        for (boolean createIncomplete : new boolean[] { true, false })
913 +        for (Integer v1 : new Integer[] { 1, null })
914 +    {
915 +        final AtomicInteger a = new AtomicInteger(0);
916 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
917 +        if (!createIncomplete) f.complete(v1);
918 +        final CompletableFuture<Integer> g = m.whenComplete
919 +            (f,
920 +             (Integer x, Throwable t) -> {
921 +                m.checkExecutionMode();
922 +                threadAssertSame(x, v1);
923 +                threadAssertNull(t);
924 +                a.getAndIncrement();
925 +            });
926 +        if (createIncomplete) f.complete(v1);
927 +
928 +        checkCompletedNormally(g, v1);
929 +        checkCompletedNormally(f, v1);
930 +        assertEquals(1, a.get());
931 +    }}
932 +
933 +    /**
934 +     * whenComplete action executes on exceptional completion, propagating
935 +     * source result.
936 +     */
937 +    public void testWhenComplete_exceptionalCompletion() {
938 +        for (ExecutionMode m : ExecutionMode.values())
939 +        for (boolean createIncomplete : new boolean[] { true, false })
940 +        for (Integer v1 : new Integer[] { 1, null })
941 +    {
942 +        final AtomicInteger a = new AtomicInteger(0);
943 +        final CFException ex = new CFException();
944 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
945 +        if (!createIncomplete) f.completeExceptionally(ex);
946 +        final CompletableFuture<Integer> g = m.whenComplete
947 +            (f,
948 +             (Integer x, Throwable t) -> {
949 +                m.checkExecutionMode();
950 +                threadAssertNull(x);
951 +                threadAssertSame(t, ex);
952 +                a.getAndIncrement();
953 +            });
954 +        if (createIncomplete) f.completeExceptionally(ex);
955 +
956 +        checkCompletedWithWrappedException(g, ex);
957 +        checkCompletedExceptionally(f, ex);
958 +        assertEquals(1, a.get());
959 +    }}
960 +
961 +    /**
962 +     * whenComplete action executes on cancelled source, propagating
963 +     * CancellationException.
964 +     */
965 +    public void testWhenComplete_sourceCancelled() {
966 +        for (ExecutionMode m : ExecutionMode.values())
967 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
968 +        for (boolean createIncomplete : new boolean[] { true, false })
969 +    {
970 +        final AtomicInteger a = new AtomicInteger(0);
971 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
972 +        if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
973 +        final CompletableFuture<Integer> g = m.whenComplete
974 +            (f,
975 +             (Integer x, Throwable t) -> {
976 +                m.checkExecutionMode();
977 +                threadAssertNull(x);
978 +                threadAssertTrue(t instanceof CancellationException);
979 +                a.getAndIncrement();
980 +            });
981 +        if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
982 +
983 +        checkCompletedWithWrappedCancellationException(g);
984 +        checkCancelled(f);
985 +        assertEquals(1, a.get());
986 +    }}
987 +
988 +    /**
989 +     * If a whenComplete action throws an exception when triggered by
990 +     * a normal completion, it completes exceptionally
991 +     */
992 +    public void testWhenComplete_actionFailed() {
993 +        for (boolean createIncomplete : new boolean[] { true, false })
994 +        for (ExecutionMode m : ExecutionMode.values())
995 +        for (Integer v1 : new Integer[] { 1, null })
996 +    {
997 +        final AtomicInteger a = new AtomicInteger(0);
998 +        final CFException ex = new CFException();
999 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1000 +        if (!createIncomplete) f.complete(v1);
1001 +        final CompletableFuture<Integer> g = m.whenComplete
1002 +            (f,
1003 +             (Integer x, Throwable t) -> {
1004 +                m.checkExecutionMode();
1005 +                threadAssertSame(x, v1);
1006 +                threadAssertNull(t);
1007 +                a.getAndIncrement();
1008 +                throw ex;
1009 +            });
1010 +        if (createIncomplete) f.complete(v1);
1011 +
1012 +        checkCompletedWithWrappedException(g, ex);
1013 +        checkCompletedNormally(f, v1);
1014 +        assertEquals(1, a.get());
1015 +    }}
1016 +
1017 +    /**
1018 +     * If a whenComplete action throws an exception when triggered by
1019 +     * a source completion that also throws an exception, the source
1020 +     * exception takes precedence.
1021 +     */
1022 +    public void testWhenComplete_actionFailedSourceFailed() {
1023 +        for (boolean createIncomplete : new boolean[] { true, false })
1024 +        for (ExecutionMode m : ExecutionMode.values())
1025 +        for (Integer v1 : new Integer[] { 1, null })
1026 +    {
1027 +        final AtomicInteger a = new AtomicInteger(0);
1028 +        final CFException ex1 = new CFException();
1029 +        final CFException ex2 = new CFException();
1030 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1031 +
1032 +        if (!createIncomplete) f.completeExceptionally(ex1);
1033 +        final CompletableFuture<Integer> g = m.whenComplete
1034 +            (f,
1035 +             (Integer x, Throwable t) -> {
1036 +                m.checkExecutionMode();
1037 +                threadAssertSame(t, ex1);
1038 +                threadAssertNull(x);
1039 +                a.getAndIncrement();
1040 +                throw ex2;
1041 +            });
1042 +        if (createIncomplete) f.completeExceptionally(ex1);
1043 +
1044 +        checkCompletedWithWrappedException(g, ex1);
1045 +        checkCompletedExceptionally(f, ex1);
1046 +        assertEquals(1, a.get());
1047 +    }}
1048 +
1049 +    /**
1050 +     * handle action completes normally with function value on normal
1051 +     * completion of source
1052 +     */
1053 +    public void testHandle_normalCompletion() {
1054 +        for (ExecutionMode m : ExecutionMode.values())
1055 +        for (boolean createIncomplete : new boolean[] { true, false })
1056 +        for (Integer v1 : new Integer[] { 1, null })
1057 +    {
1058 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1059 +        final AtomicInteger a = new AtomicInteger(0);
1060 +        if (!createIncomplete) f.complete(v1);
1061 +        final CompletableFuture<Integer> g = m.handle
1062 +            (f,
1063 +             (Integer x, Throwable t) -> {
1064 +                m.checkExecutionMode();
1065 +                threadAssertSame(x, v1);
1066 +                threadAssertNull(t);
1067 +                a.getAndIncrement();
1068 +                return inc(v1);
1069 +            });
1070 +        if (createIncomplete) f.complete(v1);
1071 +
1072 +        checkCompletedNormally(g, inc(v1));
1073 +        checkCompletedNormally(f, v1);
1074 +        assertEquals(1, a.get());
1075 +    }}
1076 +
1077 +    /**
1078 +     * handle action completes normally with function value on
1079 +     * exceptional completion of source
1080 +     */
1081 +    public void testHandle_exceptionalCompletion() {
1082 +        for (ExecutionMode m : ExecutionMode.values())
1083 +        for (boolean createIncomplete : new boolean[] { true, false })
1084 +        for (Integer v1 : new Integer[] { 1, null })
1085 +    {
1086 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1087 +        final AtomicInteger a = new AtomicInteger(0);
1088 +        final CFException ex = new CFException();
1089 +        if (!createIncomplete) f.completeExceptionally(ex);
1090 +        final CompletableFuture<Integer> g = m.handle
1091 +            (f,
1092 +             (Integer x, Throwable t) -> {
1093 +                m.checkExecutionMode();
1094 +                threadAssertNull(x);
1095 +                threadAssertSame(t, ex);
1096 +                a.getAndIncrement();
1097 +                return v1;
1098 +            });
1099 +        if (createIncomplete) f.completeExceptionally(ex);
1100 +
1101 +        checkCompletedNormally(g, v1);
1102 +        checkCompletedExceptionally(f, ex);
1103 +        assertEquals(1, a.get());
1104 +    }}
1105 +
1106 +    /**
1107 +     * handle action completes normally with function value on
1108 +     * cancelled source
1109 +     */
1110 +    public void testHandle_sourceCancelled() {
1111 +        for (ExecutionMode m : ExecutionMode.values())
1112 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1113 +        for (boolean createIncomplete : new boolean[] { true, false })
1114 +        for (Integer v1 : new Integer[] { 1, null })
1115 +    {
1116 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1117 +        final AtomicInteger a = new AtomicInteger(0);
1118 +        if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1119 +        final CompletableFuture<Integer> g = m.handle
1120 +            (f,
1121 +             (Integer x, Throwable t) -> {
1122 +                m.checkExecutionMode();
1123 +                threadAssertNull(x);
1124 +                threadAssertTrue(t instanceof CancellationException);
1125 +                a.getAndIncrement();
1126 +                return v1;
1127 +            });
1128 +        if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1129 +
1130 +        checkCompletedNormally(g, v1);
1131 +        checkCancelled(f);
1132 +        assertEquals(1, a.get());
1133 +    }}
1134 +
1135 +    /**
1136 +     * handle result completes exceptionally if action does
1137 +     */
1138 +    public void testHandle_sourceFailedActionFailed() {
1139 +        for (ExecutionMode m : ExecutionMode.values())
1140 +        for (boolean createIncomplete : new boolean[] { true, false })
1141 +    {
1142 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1143 +        final AtomicInteger a = new AtomicInteger(0);
1144 +        final CFException ex1 = new CFException();
1145 +        final CFException ex2 = new CFException();
1146 +        if (!createIncomplete) f.completeExceptionally(ex1);
1147 +        final CompletableFuture<Integer> g = m.handle
1148 +            (f,
1149 +             (Integer x, Throwable t) -> {
1150 +                m.checkExecutionMode();
1151 +                threadAssertNull(x);
1152 +                threadAssertSame(ex1, t);
1153 +                a.getAndIncrement();
1154 +                throw ex2;
1155 +            });
1156 +        if (createIncomplete) f.completeExceptionally(ex1);
1157 +
1158 +        checkCompletedWithWrappedException(g, ex2);
1159 +        checkCompletedExceptionally(f, ex1);
1160 +        assertEquals(1, a.get());
1161 +    }}
1162 +
1163 +    public void testHandle_sourceCompletedNormallyActionFailed() {
1164 +        for (ExecutionMode m : ExecutionMode.values())
1165 +        for (boolean createIncomplete : new boolean[] { true, false })
1166 +        for (Integer v1 : new Integer[] { 1, null })
1167 +    {
1168 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1169 +        final AtomicInteger a = new AtomicInteger(0);
1170 +        final CFException ex = new CFException();
1171 +        if (!createIncomplete) f.complete(v1);
1172 +        final CompletableFuture<Integer> g = m.handle
1173 +            (f,
1174 +             (Integer x, Throwable t) -> {
1175 +                m.checkExecutionMode();
1176 +                threadAssertSame(x, v1);
1177 +                threadAssertNull(t);
1178 +                a.getAndIncrement();
1179 +                throw ex;
1180 +            });
1181 +        if (createIncomplete) f.complete(v1);
1182 +
1183 +        checkCompletedWithWrappedException(g, ex);
1184 +        checkCompletedNormally(f, v1);
1185 +        assertEquals(1, a.get());
1186 +    }}
1187 +
1188 +    /**
1189 +     * runAsync completes after running Runnable
1190 +     */
1191 +    public void testRunAsync_normalCompletion() {
1192 +        ExecutionMode[] executionModes = {
1193 +            ExecutionMode.ASYNC,
1194 +            ExecutionMode.EXECUTOR,
1195 +        };
1196 +        for (ExecutionMode m : executionModes)
1197 +    {
1198 +        final Noop r = new Noop(m);
1199 +        final CompletableFuture<Void> f = m.runAsync(r);
1200 +        assertNull(f.join());
1201 +        checkCompletedNormally(f, null);
1202 +        r.assertInvoked();
1203 +    }}
1204 +
1205 +    /**
1206 +     * failing runAsync completes exceptionally after running Runnable
1207 +     */
1208 +    public void testRunAsync_exceptionalCompletion() {
1209 +        ExecutionMode[] executionModes = {
1210 +            ExecutionMode.ASYNC,
1211 +            ExecutionMode.EXECUTOR,
1212 +        };
1213 +        for (ExecutionMode m : executionModes)
1214 +    {
1215 +        final FailingRunnable r = new FailingRunnable(m);
1216 +        final CompletableFuture<Void> f = m.runAsync(r);
1217 +        checkCompletedWithWrappedCFException(f);
1218 +        r.assertInvoked();
1219 +    }}
1220 +
1221 +    /**
1222 +     * supplyAsync completes with result of supplier
1223 +     */
1224 +    public void testSupplyAsync_normalCompletion() {
1225 +        ExecutionMode[] executionModes = {
1226 +            ExecutionMode.ASYNC,
1227 +            ExecutionMode.EXECUTOR,
1228 +        };
1229 +        for (ExecutionMode m : executionModes)
1230 +        for (Integer v1 : new Integer[] { 1, null })
1231 +    {
1232 +        final IntegerSupplier r = new IntegerSupplier(m, v1);
1233 +        final CompletableFuture<Integer> f = m.supplyAsync(r);
1234 +        assertSame(v1, f.join());
1235 +        checkCompletedNormally(f, v1);
1236 +        r.assertInvoked();
1237 +    }}
1238 +
1239 +    /**
1240 +     * Failing supplyAsync completes exceptionally
1241 +     */
1242 +    public void testSupplyAsync_exceptionalCompletion() {
1243 +        ExecutionMode[] executionModes = {
1244 +            ExecutionMode.ASYNC,
1245 +            ExecutionMode.EXECUTOR,
1246 +        };
1247 +        for (ExecutionMode m : executionModes)
1248 +    {
1249 +        FailingSupplier r = new FailingSupplier(m);
1250 +        CompletableFuture<Integer> f = m.supplyAsync(r);
1251 +        checkCompletedWithWrappedCFException(f);
1252 +        r.assertInvoked();
1253 +    }}
1254 +
1255 +    // seq completion methods
1256 +
1257 +    /**
1258 +     * thenRun result completes normally after normal completion of source
1259 +     */
1260 +    public void testThenRun_normalCompletion() {
1261 +        for (ExecutionMode m : ExecutionMode.values())
1262 +        for (boolean createIncomplete : new boolean[] { true, false })
1263 +        for (Integer v1 : new Integer[] { 1, null })
1264 +    {
1265 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1266 +        final Noop r = new Noop(m);
1267 +        if (!createIncomplete) f.complete(v1);
1268 +        final CompletableFuture<Void> g = m.thenRun(f, r);
1269 +        if (createIncomplete) {
1270 +            checkIncomplete(g);
1271 +            f.complete(v1);
1272 +        }
1273 +
1274 +        checkCompletedNormally(g, null);
1275 +        checkCompletedNormally(f, v1);
1276 +        r.assertInvoked();
1277 +    }}
1278 +
1279 +    /**
1280 +     * thenRun result completes exceptionally after exceptional
1281 +     * completion of source
1282 +     */
1283 +    public void testThenRun_exceptionalCompletion() {
1284 +        for (ExecutionMode m : ExecutionMode.values())
1285 +        for (boolean createIncomplete : new boolean[] { true, false })
1286 +    {
1287 +        final CFException ex = new CFException();
1288 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1289 +        final Noop r = new Noop(m);
1290 +        if (!createIncomplete) f.completeExceptionally(ex);
1291 +        final CompletableFuture<Void> g = m.thenRun(f, r);
1292 +        if (createIncomplete) {
1293 +            checkIncomplete(g);
1294 +            f.completeExceptionally(ex);
1295 +        }
1296 +
1297 +        checkCompletedWithWrappedException(g, ex);
1298 +        checkCompletedExceptionally(f, ex);
1299 +        r.assertNotInvoked();
1300 +    }}
1301 +
1302 +    /**
1303 +     * thenRun result completes exceptionally if source cancelled
1304 +     */
1305 +    public void testThenRun_sourceCancelled() {
1306 +        for (ExecutionMode m : ExecutionMode.values())
1307 +        for (boolean createIncomplete : new boolean[] { true, false })
1308 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1309 +    {
1310 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1311 +        final Noop r = new Noop(m);
1312 +        if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1313 +        final CompletableFuture<Void> g = m.thenRun(f, r);
1314 +        if (createIncomplete) {
1315 +            checkIncomplete(g);
1316 +            assertTrue(f.cancel(mayInterruptIfRunning));
1317 +        }
1318 +
1319 +        checkCompletedWithWrappedCancellationException(g);
1320 +        checkCancelled(f);
1321 +        r.assertNotInvoked();
1322 +    }}
1323 +
1324 +    /**
1325 +     * thenRun result completes exceptionally if action does
1326 +     */
1327 +    public void testThenRun_actionFailed() {
1328 +        for (ExecutionMode m : ExecutionMode.values())
1329 +        for (boolean createIncomplete : new boolean[] { true, false })
1330 +        for (Integer v1 : new Integer[] { 1, null })
1331 +    {
1332 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1333 +        final FailingRunnable r = new FailingRunnable(m);
1334 +        if (!createIncomplete) f.complete(v1);
1335 +        final CompletableFuture<Void> g = m.thenRun(f, r);
1336 +        if (createIncomplete) {
1337 +            checkIncomplete(g);
1338 +            f.complete(v1);
1339 +        }
1340 +
1341 +        checkCompletedWithWrappedCFException(g);
1342 +        checkCompletedNormally(f, v1);
1343 +    }}
1344 +
1345 +    /**
1346 +     * thenApply result completes normally after normal completion of source
1347 +     */
1348 +    public void testThenApply_normalCompletion() {
1349 +        for (ExecutionMode m : ExecutionMode.values())
1350 +        for (boolean createIncomplete : new boolean[] { true, false })
1351 +        for (Integer v1 : new Integer[] { 1, null })
1352 +    {
1353 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1354 +        final IncFunction r = new IncFunction(m);
1355 +        if (!createIncomplete) f.complete(v1);
1356 +        final CompletableFuture<Integer> g = m.thenApply(f, r);
1357 +        if (createIncomplete) {
1358 +            checkIncomplete(g);
1359 +            f.complete(v1);
1360 +        }
1361 +
1362 +        checkCompletedNormally(g, inc(v1));
1363 +        checkCompletedNormally(f, v1);
1364 +        r.assertValue(inc(v1));
1365 +    }}
1366 +
1367 +    /**
1368 +     * thenApply result completes exceptionally after exceptional
1369 +     * completion of source
1370 +     */
1371 +    public void testThenApply_exceptionalCompletion() {
1372 +        for (ExecutionMode m : ExecutionMode.values())
1373 +        for (boolean createIncomplete : new boolean[] { true, false })
1374 +    {
1375 +        final CFException ex = new CFException();
1376 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1377 +        final IncFunction r = new IncFunction(m);
1378 +        if (!createIncomplete) f.completeExceptionally(ex);
1379 +        final CompletableFuture<Integer> g = m.thenApply(f, r);
1380 +        if (createIncomplete) {
1381 +            checkIncomplete(g);
1382 +            f.completeExceptionally(ex);
1383 +        }
1384 +
1385 +        checkCompletedWithWrappedException(g, ex);
1386 +        checkCompletedExceptionally(f, ex);
1387 +        r.assertNotInvoked();
1388 +    }}
1389 +
1390 +    /**
1391 +     * thenApply result completes exceptionally if source cancelled
1392 +     */
1393 +    public void testThenApply_sourceCancelled() {
1394 +        for (ExecutionMode m : ExecutionMode.values())
1395 +        for (boolean createIncomplete : new boolean[] { true, false })
1396 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1397 +    {
1398 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1399 +        final IncFunction r = new IncFunction(m);
1400 +        if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1401 +        final CompletableFuture<Integer> g = m.thenApply(f, r);
1402 +        if (createIncomplete) {
1403 +            checkIncomplete(g);
1404 +            assertTrue(f.cancel(mayInterruptIfRunning));
1405 +        }
1406 +
1407 +        checkCompletedWithWrappedCancellationException(g);
1408 +        checkCancelled(f);
1409 +        r.assertNotInvoked();
1410 +    }}
1411 +
1412 +    /**
1413 +     * thenApply result completes exceptionally if action does
1414 +     */
1415 +    public void testThenApply_actionFailed() {
1416 +        for (ExecutionMode m : ExecutionMode.values())
1417 +        for (boolean createIncomplete : new boolean[] { true, false })
1418 +        for (Integer v1 : new Integer[] { 1, null })
1419 +    {
1420 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1421 +        final FailingFunction r = new FailingFunction(m);
1422 +        if (!createIncomplete) f.complete(v1);
1423 +        final CompletableFuture<Integer> g = m.thenApply(f, r);
1424 +        if (createIncomplete) {
1425 +            checkIncomplete(g);
1426 +            f.complete(v1);
1427 +        }
1428 +
1429 +        checkCompletedWithWrappedCFException(g);
1430 +        checkCompletedNormally(f, v1);
1431 +    }}
1432 +
1433 +    /**
1434 +     * thenAccept result completes normally after normal completion of source
1435 +     */
1436 +    public void testThenAccept_normalCompletion() {
1437 +        for (ExecutionMode m : ExecutionMode.values())
1438 +        for (boolean createIncomplete : new boolean[] { true, false })
1439 +        for (Integer v1 : new Integer[] { 1, null })
1440 +    {
1441 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1442 +        final NoopConsumer r = new NoopConsumer(m);
1443 +        if (!createIncomplete) f.complete(v1);
1444 +        final CompletableFuture<Void> g = m.thenAccept(f, r);
1445 +        if (createIncomplete) {
1446 +            checkIncomplete(g);
1447 +            f.complete(v1);
1448 +        }
1449 +
1450 +        checkCompletedNormally(g, null);
1451 +        r.assertValue(v1);
1452 +        checkCompletedNormally(f, v1);
1453 +    }}
1454 +
1455 +    /**
1456 +     * thenAccept result completes exceptionally after exceptional
1457 +     * completion of source
1458 +     */
1459 +    public void testThenAccept_exceptionalCompletion() {
1460 +        for (ExecutionMode m : ExecutionMode.values())
1461 +        for (boolean createIncomplete : new boolean[] { true, false })
1462 +    {
1463 +        final CFException ex = new CFException();
1464 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1465 +        final NoopConsumer r = new NoopConsumer(m);
1466 +        if (!createIncomplete) f.completeExceptionally(ex);
1467 +        final CompletableFuture<Void> g = m.thenAccept(f, r);
1468 +        if (createIncomplete) {
1469 +            checkIncomplete(g);
1470 +            f.completeExceptionally(ex);
1471 +        }
1472 +
1473 +        checkCompletedWithWrappedException(g, ex);
1474 +        checkCompletedExceptionally(f, ex);
1475 +        r.assertNotInvoked();
1476 +    }}
1477 +
1478 +    /**
1479 +     * thenAccept result completes exceptionally if source cancelled
1480 +     */
1481 +    public void testThenAccept_sourceCancelled() {
1482 +        for (ExecutionMode m : ExecutionMode.values())
1483 +        for (boolean createIncomplete : new boolean[] { true, false })
1484 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1485 +    {
1486 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1487 +        final NoopConsumer r = new NoopConsumer(m);
1488 +        if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1489 +        final CompletableFuture<Void> g = m.thenAccept(f, r);
1490 +        if (createIncomplete) {
1491 +            checkIncomplete(g);
1492 +            assertTrue(f.cancel(mayInterruptIfRunning));
1493 +        }
1494 +
1495 +        checkCompletedWithWrappedCancellationException(g);
1496 +        checkCancelled(f);
1497 +        r.assertNotInvoked();
1498 +    }}
1499 +
1500 +    /**
1501 +     * thenAccept result completes exceptionally if action does
1502 +     */
1503 +    public void testThenAccept_actionFailed() {
1504 +        for (ExecutionMode m : ExecutionMode.values())
1505 +        for (boolean createIncomplete : new boolean[] { true, false })
1506 +        for (Integer v1 : new Integer[] { 1, null })
1507 +    {
1508 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1509 +        final FailingConsumer r = new FailingConsumer(m);
1510 +        if (!createIncomplete) f.complete(v1);
1511 +        final CompletableFuture<Void> g = m.thenAccept(f, r);
1512 +        if (createIncomplete) {
1513 +            checkIncomplete(g);
1514 +            f.complete(v1);
1515 +        }
1516 +
1517 +        checkCompletedWithWrappedCFException(g);
1518 +        checkCompletedNormally(f, v1);
1519 +    }}
1520 +
1521 +    /**
1522 +     * thenCombine result completes normally after normal completion
1523 +     * of sources
1524 +     */
1525 +    public void testThenCombine_normalCompletion() {
1526 +        for (ExecutionMode m : ExecutionMode.values())
1527 +        for (boolean createIncomplete : new boolean[] { true, false })
1528 +        for (boolean fFirst : new boolean[] { true, false })
1529 +        for (Integer v1 : new Integer[] { 1, null })
1530 +        for (Integer v2 : new Integer[] { 2, null })
1531 +    {
1532 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1533 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1534 +        final SubtractFunction r = new SubtractFunction(m);
1535 +
1536 +        if (fFirst) f.complete(v1); else g.complete(v2);
1537 +        if (!createIncomplete)
1538 +            if (!fFirst) f.complete(v1); else g.complete(v2);
1539 +        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1540 +        if (createIncomplete) {
1541 +            checkIncomplete(h);
1542 +            r.assertNotInvoked();
1543 +            if (!fFirst) f.complete(v1); else g.complete(v2);
1544 +        }
1545 +
1546 +        checkCompletedNormally(h, subtract(v1, v2));
1547 +        checkCompletedNormally(f, v1);
1548 +        checkCompletedNormally(g, v2);
1549 +        r.assertValue(subtract(v1, v2));
1550 +    }}
1551 +
1552 +    /**
1553 +     * thenCombine result completes exceptionally after exceptional
1554 +     * completion of either source
1555 +     */
1556 +    public void testThenCombine_exceptionalCompletion() {
1557 +        for (ExecutionMode m : ExecutionMode.values())
1558 +        for (boolean createIncomplete : new boolean[] { true, false })
1559 +        for (boolean fFirst : new boolean[] { true, false })
1560 +        for (Integer v1 : new Integer[] { 1, null })
1561 +    {
1562 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1563 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1564 +        final CFException ex = new CFException();
1565 +        final SubtractFunction r = new SubtractFunction(m);
1566 +
1567 +        (fFirst ? f : g).complete(v1);
1568 +        if (!createIncomplete)
1569 +            (!fFirst ? f : g).completeExceptionally(ex);
1570 +        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1571 +        if (createIncomplete) {
1572 +            checkIncomplete(h);
1573 +            (!fFirst ? f : g).completeExceptionally(ex);
1574 +        }
1575 +
1576 +        checkCompletedWithWrappedException(h, ex);
1577 +        r.assertNotInvoked();
1578 +        checkCompletedNormally(fFirst ? f : g, v1);
1579 +        checkCompletedExceptionally(!fFirst ? f : g, ex);
1580 +    }}
1581 +
1582 +    /**
1583 +     * thenCombine result completes exceptionally if either source cancelled
1584 +     */
1585 +    public void testThenCombine_sourceCancelled() {
1586 +        for (ExecutionMode m : ExecutionMode.values())
1587 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1588 +        for (boolean createIncomplete : new boolean[] { true, false })
1589 +        for (boolean fFirst : new boolean[] { true, false })
1590 +        for (Integer v1 : new Integer[] { 1, null })
1591 +    {
1592 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1593 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1594 +        final SubtractFunction r = new SubtractFunction(m);
1595 +
1596 +        (fFirst ? f : g).complete(v1);
1597 +        if (!createIncomplete)
1598 +            assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
1599 +        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1600 +        if (createIncomplete) {
1601 +            checkIncomplete(h);
1602 +            assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
1603 +        }
1604 +
1605 +        checkCompletedWithWrappedCancellationException(h);
1606 +        checkCancelled(!fFirst ? f : g);
1607 +        r.assertNotInvoked();
1608 +        checkCompletedNormally(fFirst ? f : g, v1);
1609 +    }}
1610 +
1611 +    /**
1612 +     * thenCombine result completes exceptionally if action does
1613 +     */
1614 +    public void testThenCombine_actionFailed() {
1615 +        for (ExecutionMode m : ExecutionMode.values())
1616 +        for (boolean fFirst : new boolean[] { true, false })
1617 +        for (Integer v1 : new Integer[] { 1, null })
1618 +        for (Integer v2 : new Integer[] { 2, null })
1619 +    {
1620 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1621 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1622 +        final FailingBiFunction r = new FailingBiFunction(m);
1623 +        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1624 +
1625 +        if (fFirst) {
1626 +            f.complete(v1);
1627 +            g.complete(v2);
1628 +        } else {
1629 +            g.complete(v2);
1630 +            f.complete(v1);
1631 +        }
1632 +
1633 +        checkCompletedWithWrappedCFException(h);
1634 +        checkCompletedNormally(f, v1);
1635 +        checkCompletedNormally(g, v2);
1636 +    }}
1637 +
1638 +    /**
1639 +     * thenAcceptBoth result completes normally after normal
1640 +     * completion of sources
1641 +     */
1642 +    public void testThenAcceptBoth_normalCompletion() {
1643 +        for (ExecutionMode m : ExecutionMode.values())
1644 +        for (boolean createIncomplete : new boolean[] { true, false })
1645 +        for (boolean fFirst : new boolean[] { true, false })
1646 +        for (Integer v1 : new Integer[] { 1, null })
1647 +        for (Integer v2 : new Integer[] { 2, null })
1648 +    {
1649 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1650 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1651 +        final SubtractAction r = new SubtractAction(m);
1652 +
1653 +        if (fFirst) f.complete(v1); else g.complete(v2);
1654 +        if (!createIncomplete)
1655 +            if (!fFirst) f.complete(v1); else g.complete(v2);
1656 +        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1657 +        if (createIncomplete) {
1658 +            checkIncomplete(h);
1659 +            r.assertNotInvoked();
1660 +            if (!fFirst) f.complete(v1); else g.complete(v2);
1661 +        }
1662 +
1663 +        checkCompletedNormally(h, null);
1664 +        r.assertValue(subtract(v1, v2));
1665 +        checkCompletedNormally(f, v1);
1666 +        checkCompletedNormally(g, v2);
1667 +    }}
1668 +
1669 +    /**
1670 +     * thenAcceptBoth result completes exceptionally after exceptional
1671 +     * completion of either source
1672 +     */
1673 +    public void testThenAcceptBoth_exceptionalCompletion() {
1674 +        for (ExecutionMode m : ExecutionMode.values())
1675 +        for (boolean createIncomplete : new boolean[] { true, false })
1676 +        for (boolean fFirst : new boolean[] { true, false })
1677 +        for (Integer v1 : new Integer[] { 1, null })
1678 +    {
1679 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1680 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1681 +        final CFException ex = new CFException();
1682 +        final SubtractAction r = new SubtractAction(m);
1683 +
1684 +        (fFirst ? f : g).complete(v1);
1685 +        if (!createIncomplete)
1686 +            (!fFirst ? f : g).completeExceptionally(ex);
1687 +        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1688 +        if (createIncomplete) {
1689 +            checkIncomplete(h);
1690 +            (!fFirst ? f : g).completeExceptionally(ex);
1691 +        }
1692 +
1693 +        checkCompletedWithWrappedException(h, ex);
1694 +        r.assertNotInvoked();
1695 +        checkCompletedNormally(fFirst ? f : g, v1);
1696 +        checkCompletedExceptionally(!fFirst ? f : g, ex);
1697 +    }}
1698 +
1699 +    /**
1700 +     * thenAcceptBoth result completes exceptionally if either source cancelled
1701 +     */
1702 +    public void testThenAcceptBoth_sourceCancelled() {
1703 +        for (ExecutionMode m : ExecutionMode.values())
1704 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1705 +        for (boolean createIncomplete : new boolean[] { true, false })
1706 +        for (boolean fFirst : new boolean[] { true, false })
1707 +        for (Integer v1 : new Integer[] { 1, null })
1708 +    {
1709 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1710 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1711 +        final SubtractAction r = new SubtractAction(m);
1712 +
1713 +        (fFirst ? f : g).complete(v1);
1714 +        if (!createIncomplete)
1715 +            assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
1716 +        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1717 +        if (createIncomplete) {
1718 +            checkIncomplete(h);
1719 +            assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
1720 +        }
1721 +
1722 +        checkCompletedWithWrappedCancellationException(h);
1723 +        checkCancelled(!fFirst ? f : g);
1724 +        r.assertNotInvoked();
1725 +        checkCompletedNormally(fFirst ? f : g, v1);
1726 +    }}
1727 +
1728 +    /**
1729 +     * thenAcceptBoth result completes exceptionally if action does
1730 +     */
1731 +    public void testThenAcceptBoth_actionFailed() {
1732 +        for (ExecutionMode m : ExecutionMode.values())
1733 +        for (boolean fFirst : new boolean[] { true, false })
1734 +        for (Integer v1 : new Integer[] { 1, null })
1735 +        for (Integer v2 : new Integer[] { 2, null })
1736 +    {
1737 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1738 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1739 +        final FailingBiConsumer r = new FailingBiConsumer(m);
1740 +        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1741 +
1742 +        if (fFirst) {
1743 +            f.complete(v1);
1744 +            g.complete(v2);
1745 +        } else {
1746 +            g.complete(v2);
1747 +            f.complete(v1);
1748 +        }
1749 +
1750 +        checkCompletedWithWrappedCFException(h);
1751 +        checkCompletedNormally(f, v1);
1752 +        checkCompletedNormally(g, v2);
1753 +    }}
1754 +
1755 +    /**
1756 +     * runAfterBoth result completes normally after normal
1757 +     * completion of sources
1758 +     */
1759 +    public void testRunAfterBoth_normalCompletion() {
1760 +        for (ExecutionMode m : ExecutionMode.values())
1761 +        for (boolean createIncomplete : new boolean[] { true, false })
1762 +        for (boolean fFirst : new boolean[] { true, false })
1763 +        for (Integer v1 : new Integer[] { 1, null })
1764 +        for (Integer v2 : new Integer[] { 2, null })
1765 +    {
1766 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1767 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1768 +        final Noop r = new Noop(m);
1769 +
1770 +        if (fFirst) f.complete(v1); else g.complete(v2);
1771 +        if (!createIncomplete)
1772 +            if (!fFirst) f.complete(v1); else g.complete(v2);
1773 +        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1774 +        if (createIncomplete) {
1775 +            checkIncomplete(h);
1776 +            r.assertNotInvoked();
1777 +            if (!fFirst) f.complete(v1); else g.complete(v2);
1778 +        }
1779 +
1780 +        checkCompletedNormally(h, null);
1781 +        r.assertInvoked();
1782 +        checkCompletedNormally(f, v1);
1783 +        checkCompletedNormally(g, v2);
1784 +    }}
1785 +
1786 +    /**
1787 +     * runAfterBoth result completes exceptionally after exceptional
1788 +     * completion of either source
1789 +     */
1790 +    public void testRunAfterBoth_exceptionalCompletion() {
1791 +        for (ExecutionMode m : ExecutionMode.values())
1792 +        for (boolean createIncomplete : new boolean[] { true, false })
1793 +        for (boolean fFirst : new boolean[] { true, false })
1794 +        for (Integer v1 : new Integer[] { 1, null })
1795 +    {
1796 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1797 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1798 +        final CFException ex = new CFException();
1799 +        final Noop r = new Noop(m);
1800 +
1801 +        (fFirst ? f : g).complete(v1);
1802 +        if (!createIncomplete)
1803 +            (!fFirst ? f : g).completeExceptionally(ex);
1804 +        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1805 +        if (createIncomplete) {
1806 +            checkIncomplete(h);
1807 +            (!fFirst ? f : g).completeExceptionally(ex);
1808 +        }
1809 +
1810 +        checkCompletedWithWrappedException(h, ex);
1811 +        r.assertNotInvoked();
1812 +        checkCompletedNormally(fFirst ? f : g, v1);
1813 +        checkCompletedExceptionally(!fFirst ? f : g, ex);
1814 +    }}
1815 +
1816 +    /**
1817 +     * runAfterBoth result completes exceptionally if either source cancelled
1818 +     */
1819 +    public void testRunAfterBoth_sourceCancelled() {
1820 +        for (ExecutionMode m : ExecutionMode.values())
1821 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1822 +        for (boolean createIncomplete : new boolean[] { true, false })
1823 +        for (boolean fFirst : new boolean[] { true, false })
1824 +        for (Integer v1 : new Integer[] { 1, null })
1825 +    {
1826 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1827 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1828 +        final Noop r = new Noop(m);
1829 +
1830 +        (fFirst ? f : g).complete(v1);
1831 +        if (!createIncomplete)
1832 +            assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
1833 +        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1834 +        if (createIncomplete) {
1835 +            checkIncomplete(h);
1836 +            assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
1837 +        }
1838 +
1839 +        checkCompletedWithWrappedCancellationException(h);
1840 +        checkCancelled(!fFirst ? f : g);
1841 +        r.assertNotInvoked();
1842 +        checkCompletedNormally(fFirst ? f : g, v1);
1843 +    }}
1844 +
1845 +    /**
1846 +     * runAfterBoth result completes exceptionally if action does
1847 +     */
1848 +    public void testRunAfterBoth_actionFailed() {
1849 +        for (ExecutionMode m : ExecutionMode.values())
1850 +        for (boolean fFirst : new boolean[] { true, false })
1851 +        for (Integer v1 : new Integer[] { 1, null })
1852 +        for (Integer v2 : new Integer[] { 2, null })
1853 +    {
1854 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1855 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1856 +        final FailingRunnable r1 = new FailingRunnable(m);
1857 +        final FailingRunnable r2 = new FailingRunnable(m);
1858 +
1859 +        CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
1860 +        if (fFirst) {
1861 +            f.complete(v1);
1862 +            g.complete(v2);
1863 +        } else {
1864 +            g.complete(v2);
1865 +            f.complete(v1);
1866 +        }
1867 +        CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
1868 +
1869 +        checkCompletedWithWrappedCFException(h1);
1870 +        checkCompletedWithWrappedCFException(h2);
1871 +        checkCompletedNormally(f, v1);
1872 +        checkCompletedNormally(g, v2);
1873 +    }}
1874 +
1875 +    /**
1876 +     * applyToEither result completes normally after normal completion
1877 +     * of either source
1878 +     */
1879 +    public void testApplyToEither_normalCompletion() {
1880 +        for (ExecutionMode m : ExecutionMode.values())
1881 +        for (Integer v1 : new Integer[] { 1, null })
1882 +        for (Integer v2 : new Integer[] { 2, null })
1883 +    {
1884 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1885 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1886 +        final IncFunction[] rs = new IncFunction[6];
1887 +        for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1888 +
1889 +        final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
1890 +        final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
1891 +        checkIncomplete(h0);
1892 +        checkIncomplete(h1);
1893 +        rs[0].assertNotInvoked();
1894 +        rs[1].assertNotInvoked();
1895 +        f.complete(v1);
1896 +        checkCompletedNormally(h0, inc(v1));
1897 +        checkCompletedNormally(h1, inc(v1));
1898 +        final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
1899 +        final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
1900 +        checkCompletedNormally(h2, inc(v1));
1901 +        checkCompletedNormally(h3, inc(v1));
1902 +        g.complete(v2);
1903 +
1904 +        // unspecified behavior - both source completions available
1905 +        final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
1906 +        final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
1907 +        rs[4].assertValue(h4.join());
1908 +        rs[5].assertValue(h5.join());
1909 +        assertTrue(Objects.equals(inc(v1), h4.join()) ||
1910 +                   Objects.equals(inc(v2), h4.join()));
1911 +        assertTrue(Objects.equals(inc(v1), h5.join()) ||
1912 +                   Objects.equals(inc(v2), h5.join()));
1913 +
1914 +        checkCompletedNormally(f, v1);
1915 +        checkCompletedNormally(g, v2);
1916 +        checkCompletedNormally(h0, inc(v1));
1917 +        checkCompletedNormally(h1, inc(v1));
1918 +        checkCompletedNormally(h2, inc(v1));
1919 +        checkCompletedNormally(h3, inc(v1));
1920 +        for (int i = 0; i < 4; i++) rs[i].assertValue(inc(v1));
1921 +    }}
1922 +
1923 +    /**
1924 +     * applyToEither result completes exceptionally after exceptional
1925 +     * completion of either source
1926 +     */
1927 +    public void testApplyToEither_exceptionalCompletion() {
1928 +        for (ExecutionMode m : ExecutionMode.values())
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 CFException ex = new CFException();
1934 +        final IncFunction[] rs = new IncFunction[6];
1935 +        for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1936 +
1937 +        final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
1938 +        final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
1939 +        checkIncomplete(h0);
1940 +        checkIncomplete(h1);
1941 +        rs[0].assertNotInvoked();
1942 +        rs[1].assertNotInvoked();
1943 +        f.completeExceptionally(ex);
1944 +        checkCompletedWithWrappedException(h0, ex);
1945 +        checkCompletedWithWrappedException(h1, ex);
1946 +        final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
1947 +        final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
1948 +        checkCompletedWithWrappedException(h2, ex);
1949 +        checkCompletedWithWrappedException(h3, ex);
1950 +        g.complete(v1);
1951 +
1952 +        // unspecified behavior - both source completions available
1953 +        final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
1954 +        final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
1955 +        try {
1956 +            assertEquals(inc(v1), h4.join());
1957 +            rs[4].assertValue(inc(v1));
1958 +        } catch (CompletionException ok) {
1959 +            checkCompletedWithWrappedException(h4, ex);
1960 +            rs[4].assertNotInvoked();
1961 +        }
1962 +        try {
1963 +            assertEquals(inc(v1), h5.join());
1964 +            rs[5].assertValue(inc(v1));
1965 +        } catch (CompletionException ok) {
1966 +            checkCompletedWithWrappedException(h5, ex);
1967 +            rs[5].assertNotInvoked();
1968 +        }
1969 +
1970 +        checkCompletedExceptionally(f, ex);
1971 +        checkCompletedNormally(g, v1);
1972 +        checkCompletedWithWrappedException(h0, ex);
1973 +        checkCompletedWithWrappedException(h1, ex);
1974 +        checkCompletedWithWrappedException(h2, ex);
1975 +        checkCompletedWithWrappedException(h3, ex);
1976 +        checkCompletedWithWrappedException(h4, ex);
1977 +        for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
1978 +    }}
1979 +
1980 +    public void testApplyToEither_exceptionalCompletion2() {
1981 +        for (ExecutionMode m : ExecutionMode.values())
1982 +        for (boolean fFirst : new boolean[] { true, false })
1983 +        for (Integer v1 : new Integer[] { 1, null })
1984 +    {
1985 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1986 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1987 +        final CFException ex = new CFException();
1988 +        final IncFunction[] rs = new IncFunction[6];
1989 +        for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1990 +
1991 +        final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
1992 +        final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
1993 +        if (fFirst) {
1994 +            f.complete(v1);
1995 +            g.completeExceptionally(ex);
1996 +        } else {
1997 +            g.completeExceptionally(ex);
1998 +            f.complete(v1);
1999 +        }
2000 +        final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2001 +        final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2002 +
2003 +        // unspecified behavior - both source completions available
2004 +        try {
2005 +            assertEquals(inc(v1), h0.join());
2006 +            rs[0].assertValue(inc(v1));
2007 +        } catch (CompletionException ok) {
2008 +            checkCompletedWithWrappedException(h0, ex);
2009 +            rs[0].assertNotInvoked();
2010 +        }
2011 +        try {
2012 +            assertEquals(inc(v1), h1.join());
2013 +            rs[1].assertValue(inc(v1));
2014 +        } catch (CompletionException ok) {
2015 +            checkCompletedWithWrappedException(h1, ex);
2016 +            rs[1].assertNotInvoked();
2017 +        }
2018 +        try {
2019 +            assertEquals(inc(v1), h2.join());
2020 +            rs[2].assertValue(inc(v1));
2021 +        } catch (CompletionException ok) {
2022 +            checkCompletedWithWrappedException(h2, ex);
2023 +            rs[2].assertNotInvoked();
2024 +        }
2025 +        try {
2026 +            assertEquals(inc(v1), h3.join());
2027 +            rs[3].assertValue(inc(v1));
2028 +        } catch (CompletionException ok) {
2029 +            checkCompletedWithWrappedException(h3, ex);
2030 +            rs[3].assertNotInvoked();
2031 +        }
2032 +
2033 +        checkCompletedNormally(f, v1);
2034 +        checkCompletedExceptionally(g, ex);
2035 +    }}
2036 +
2037 +    /**
2038 +     * applyToEither result completes exceptionally if either source cancelled
2039 +     */
2040 +    public void testApplyToEither_sourceCancelled() {
2041 +        for (ExecutionMode m : ExecutionMode.values())
2042 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2043 +        for (Integer v1 : new Integer[] { 1, null })
2044 +    {
2045 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2046 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2047 +        final IncFunction[] rs = new IncFunction[6];
2048 +        for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2049 +
2050 +        final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2051 +        final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2052 +        checkIncomplete(h0);
2053 +        checkIncomplete(h1);
2054 +        rs[0].assertNotInvoked();
2055 +        rs[1].assertNotInvoked();
2056 +        f.cancel(mayInterruptIfRunning);
2057 +        checkCompletedWithWrappedCancellationException(h0);
2058 +        checkCompletedWithWrappedCancellationException(h1);
2059 +        final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2060 +        final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2061 +        checkCompletedWithWrappedCancellationException(h2);
2062 +        checkCompletedWithWrappedCancellationException(h3);
2063 +        g.complete(v1);
2064 +
2065 +        // unspecified behavior - both source completions available
2066 +        final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2067 +        final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2068 +        try {
2069 +            assertEquals(inc(v1), h4.join());
2070 +            rs[4].assertValue(inc(v1));
2071 +        } catch (CompletionException ok) {
2072 +            checkCompletedWithWrappedCancellationException(h4);
2073 +            rs[4].assertNotInvoked();
2074 +        }
2075 +        try {
2076 +            assertEquals(inc(v1), h5.join());
2077 +            rs[5].assertValue(inc(v1));
2078 +        } catch (CompletionException ok) {
2079 +            checkCompletedWithWrappedCancellationException(h5);
2080 +            rs[5].assertNotInvoked();
2081 +        }
2082 +
2083 +        checkCancelled(f);
2084 +        checkCompletedNormally(g, v1);
2085 +        checkCompletedWithWrappedCancellationException(h0);
2086 +        checkCompletedWithWrappedCancellationException(h1);
2087 +        checkCompletedWithWrappedCancellationException(h2);
2088 +        checkCompletedWithWrappedCancellationException(h3);
2089 +        for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2090 +    }}
2091 +
2092 +    public void testApplyToEither_sourceCancelled2() {
2093 +        for (ExecutionMode m : ExecutionMode.values())
2094 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2095 +        for (boolean fFirst : new boolean[] { true, false })
2096 +        for (Integer v1 : new Integer[] { 1, null })
2097 +    {
2098 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2099 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2100 +        final IncFunction[] rs = new IncFunction[6];
2101 +        for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2102 +
2103 +        final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2104 +        final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2105 +        if (fFirst) {
2106 +            f.complete(v1);
2107 +            g.cancel(mayInterruptIfRunning);
2108 +        } else {
2109 +            g.cancel(mayInterruptIfRunning);
2110 +            f.complete(v1);
2111 +        }
2112 +        final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2113 +        final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2114 +
2115 +        // unspecified behavior - both source completions available
2116 +        try {
2117 +            assertEquals(inc(v1), h0.join());
2118 +            rs[0].assertValue(inc(v1));
2119 +        } catch (CompletionException ok) {
2120 +            checkCompletedWithWrappedCancellationException(h0);
2121 +            rs[0].assertNotInvoked();
2122 +        }
2123 +        try {
2124 +            assertEquals(inc(v1), h1.join());
2125 +            rs[1].assertValue(inc(v1));
2126 +        } catch (CompletionException ok) {
2127 +            checkCompletedWithWrappedCancellationException(h1);
2128 +            rs[1].assertNotInvoked();
2129 +        }
2130 +        try {
2131 +            assertEquals(inc(v1), h2.join());
2132 +            rs[2].assertValue(inc(v1));
2133 +        } catch (CompletionException ok) {
2134 +            checkCompletedWithWrappedCancellationException(h2);
2135 +            rs[2].assertNotInvoked();
2136 +        }
2137 +        try {
2138 +            assertEquals(inc(v1), h3.join());
2139 +            rs[3].assertValue(inc(v1));
2140 +        } catch (CompletionException ok) {
2141 +            checkCompletedWithWrappedCancellationException(h3);
2142 +            rs[3].assertNotInvoked();
2143 +        }
2144 +
2145 +        checkCompletedNormally(f, v1);
2146 +        checkCancelled(g);
2147 +    }}
2148 +
2149 +    /**
2150 +     * applyToEither result completes exceptionally if action does
2151 +     */
2152 +    public void testApplyToEither_actionFailed() {
2153 +        for (ExecutionMode m : ExecutionMode.values())
2154 +        for (Integer v1 : new Integer[] { 1, null })
2155 +        for (Integer v2 : new Integer[] { 2, null })
2156 +    {
2157 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2158 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2159 +        final FailingFunction[] rs = new FailingFunction[6];
2160 +        for (int i = 0; i < rs.length; i++) rs[i] = new FailingFunction(m);
2161 +
2162 +        final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2163 +        final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2164 +        f.complete(v1);
2165 +        final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2166 +        final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2167 +        checkCompletedWithWrappedCFException(h0);
2168 +        checkCompletedWithWrappedCFException(h1);
2169 +        checkCompletedWithWrappedCFException(h2);
2170 +        checkCompletedWithWrappedCFException(h3);
2171 +        for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2172 +
2173 +        g.complete(v2);
2174 +
2175 +        // unspecified behavior - both source completions available
2176 +        final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2177 +        final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2178 +
2179 +        checkCompletedWithWrappedCFException(h4);
2180 +        assertTrue(Objects.equals(v1, rs[4].value) ||
2181 +                   Objects.equals(v2, rs[4].value));
2182 +        checkCompletedWithWrappedCFException(h5);
2183 +        assertTrue(Objects.equals(v1, rs[5].value) ||
2184 +                   Objects.equals(v2, rs[5].value));
2185 +
2186 +        checkCompletedNormally(f, v1);
2187 +        checkCompletedNormally(g, v2);
2188 +    }}
2189 +
2190 +    /**
2191 +     * acceptEither result completes normally after normal completion
2192 +     * of either source
2193 +     */
2194 +    public void testAcceptEither_normalCompletion() {
2195 +        for (ExecutionMode m : ExecutionMode.values())
2196 +        for (Integer v1 : new Integer[] { 1, null })
2197 +        for (Integer v2 : new Integer[] { 2, null })
2198 +    {
2199 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2200 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2201 +        final NoopConsumer[] rs = new NoopConsumer[6];
2202 +        for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2203 +
2204 +        final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2205 +        final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2206 +        checkIncomplete(h0);
2207 +        checkIncomplete(h1);
2208 +        rs[0].assertNotInvoked();
2209 +        rs[1].assertNotInvoked();
2210 +        f.complete(v1);
2211 +        checkCompletedNormally(h0, null);
2212 +        checkCompletedNormally(h1, null);
2213 +        rs[0].assertValue(v1);
2214 +        rs[1].assertValue(v1);
2215 +        final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2216 +        final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2217 +        checkCompletedNormally(h2, null);
2218 +        checkCompletedNormally(h3, null);
2219 +        rs[2].assertValue(v1);
2220 +        rs[3].assertValue(v1);
2221 +        g.complete(v2);
2222 +
2223 +        // unspecified behavior - both source completions available
2224 +        final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2225 +        final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2226 +        checkCompletedNormally(h4, null);
2227 +        checkCompletedNormally(h5, null);
2228 +        assertTrue(Objects.equals(v1, rs[4].value) ||
2229 +                   Objects.equals(v2, rs[4].value));
2230 +        assertTrue(Objects.equals(v1, rs[5].value) ||
2231 +                   Objects.equals(v2, rs[5].value));
2232 +
2233 +        checkCompletedNormally(f, v1);
2234 +        checkCompletedNormally(g, v2);
2235 +        checkCompletedNormally(h0, null);
2236 +        checkCompletedNormally(h1, null);
2237 +        checkCompletedNormally(h2, null);
2238 +        checkCompletedNormally(h3, null);
2239 +        for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2240 +    }}
2241 +
2242 +    /**
2243 +     * acceptEither result completes exceptionally after exceptional
2244 +     * completion of either source
2245 +     */
2246 +    public void testAcceptEither_exceptionalCompletion() {
2247 +        for (ExecutionMode m : ExecutionMode.values())
2248 +        for (Integer v1 : new Integer[] { 1, null })
2249 +    {
2250 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2251 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2252 +        final CFException ex = new CFException();
2253 +        final NoopConsumer[] rs = new NoopConsumer[6];
2254 +        for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2255 +
2256 +        final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2257 +        final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2258 +        checkIncomplete(h0);
2259 +        checkIncomplete(h1);
2260 +        rs[0].assertNotInvoked();
2261 +        rs[1].assertNotInvoked();
2262 +        f.completeExceptionally(ex);
2263 +        checkCompletedWithWrappedException(h0, ex);
2264 +        checkCompletedWithWrappedException(h1, ex);
2265 +        final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2266 +        final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2267 +        checkCompletedWithWrappedException(h2, ex);
2268 +        checkCompletedWithWrappedException(h3, ex);
2269 +
2270 +        g.complete(v1);
2271 +
2272 +        // unspecified behavior - both source completions available
2273 +        final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2274 +        final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2275 +        try {
2276 +            assertNull(h4.join());
2277 +            rs[4].assertValue(v1);
2278 +        } catch (CompletionException ok) {
2279 +            checkCompletedWithWrappedException(h4, ex);
2280 +            rs[4].assertNotInvoked();
2281 +        }
2282 +        try {
2283 +            assertNull(h5.join());
2284 +            rs[5].assertValue(v1);
2285 +        } catch (CompletionException ok) {
2286 +            checkCompletedWithWrappedException(h5, ex);
2287 +            rs[5].assertNotInvoked();
2288 +        }
2289 +
2290 +        checkCompletedExceptionally(f, ex);
2291 +        checkCompletedNormally(g, v1);
2292 +        checkCompletedWithWrappedException(h0, ex);
2293 +        checkCompletedWithWrappedException(h1, ex);
2294 +        checkCompletedWithWrappedException(h2, ex);
2295 +        checkCompletedWithWrappedException(h3, ex);
2296 +        checkCompletedWithWrappedException(h4, ex);
2297 +        for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2298 +    }}
2299 +
2300 +    public void testAcceptEither_exceptionalCompletion2() {
2301 +        for (ExecutionMode m : ExecutionMode.values())
2302 +        for (boolean fFirst : new boolean[] { true, false })
2303 +        for (Integer v1 : new Integer[] { 1, null })
2304 +    {
2305 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2306 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2307 +        final CFException ex = new CFException();
2308 +        final NoopConsumer[] rs = new NoopConsumer[6];
2309 +        for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2310 +
2311 +        final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2312 +        final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2313 +        if (fFirst) {
2314 +            f.complete(v1);
2315 +            g.completeExceptionally(ex);
2316 +        } else {
2317 +            g.completeExceptionally(ex);
2318 +            f.complete(v1);
2319 +        }
2320 +        final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2321 +        final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2322 +
2323 +        // unspecified behavior - both source completions available
2324 +        try {
2325 +            assertEquals(null, h0.join());
2326 +            rs[0].assertValue(v1);
2327 +        } catch (CompletionException ok) {
2328 +            checkCompletedWithWrappedException(h0, ex);
2329 +            rs[0].assertNotInvoked();
2330 +        }
2331 +        try {
2332 +            assertEquals(null, h1.join());
2333 +            rs[1].assertValue(v1);
2334 +        } catch (CompletionException ok) {
2335 +            checkCompletedWithWrappedException(h1, ex);
2336 +            rs[1].assertNotInvoked();
2337 +        }
2338 +        try {
2339 +            assertEquals(null, h2.join());
2340 +            rs[2].assertValue(v1);
2341 +        } catch (CompletionException ok) {
2342 +            checkCompletedWithWrappedException(h2, ex);
2343 +            rs[2].assertNotInvoked();
2344 +        }
2345 +        try {
2346 +            assertEquals(null, h3.join());
2347 +            rs[3].assertValue(v1);
2348 +        } catch (CompletionException ok) {
2349 +            checkCompletedWithWrappedException(h3, ex);
2350 +            rs[3].assertNotInvoked();
2351 +        }
2352 +
2353 +        checkCompletedNormally(f, v1);
2354 +        checkCompletedExceptionally(g, ex);
2355 +    }}
2356 +
2357 +    /**
2358 +     * acceptEither result completes exceptionally if either source cancelled
2359 +     */
2360 +    public void testAcceptEither_sourceCancelled() {
2361 +        for (ExecutionMode m : ExecutionMode.values())
2362 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2363 +        for (Integer v1 : new Integer[] { 1, null })
2364 +    {
2365 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2366 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2367 +        final NoopConsumer[] rs = new NoopConsumer[6];
2368 +        for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2369 +
2370 +        final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2371 +        final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2372 +        checkIncomplete(h0);
2373 +        checkIncomplete(h1);
2374 +        rs[0].assertNotInvoked();
2375 +        rs[1].assertNotInvoked();
2376 +        f.cancel(mayInterruptIfRunning);
2377 +        checkCompletedWithWrappedCancellationException(h0);
2378 +        checkCompletedWithWrappedCancellationException(h1);
2379 +        final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2380 +        final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2381 +        checkCompletedWithWrappedCancellationException(h2);
2382 +        checkCompletedWithWrappedCancellationException(h3);
2383 +
2384 +        g.complete(v1);
2385 +
2386 +        // unspecified behavior - both source completions available
2387 +        final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2388 +        final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2389 +        try {
2390 +            assertNull(h4.join());
2391 +            rs[4].assertValue(v1);
2392 +        } catch (CompletionException ok) {
2393 +            checkCompletedWithWrappedCancellationException(h4);
2394 +            rs[4].assertNotInvoked();
2395 +        }
2396 +        try {
2397 +            assertNull(h5.join());
2398 +            rs[5].assertValue(v1);
2399 +        } catch (CompletionException ok) {
2400 +            checkCompletedWithWrappedCancellationException(h5);
2401 +            rs[5].assertNotInvoked();
2402 +        }
2403 +
2404 +        checkCancelled(f);
2405 +        checkCompletedNormally(g, v1);
2406 +        checkCompletedWithWrappedCancellationException(h0);
2407 +        checkCompletedWithWrappedCancellationException(h1);
2408 +        checkCompletedWithWrappedCancellationException(h2);
2409 +        checkCompletedWithWrappedCancellationException(h3);
2410 +        for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2411 +    }}
2412 +
2413 +    /**
2414 +     * acceptEither result completes exceptionally if action does
2415 +     */
2416 +    public void testAcceptEither_actionFailed() {
2417 +        for (ExecutionMode m : ExecutionMode.values())
2418 +        for (Integer v1 : new Integer[] { 1, null })
2419 +        for (Integer v2 : new Integer[] { 2, null })
2420 +    {
2421 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2422 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2423 +        final FailingConsumer[] rs = new FailingConsumer[6];
2424 +        for (int i = 0; i < rs.length; i++) rs[i] = new FailingConsumer(m);
2425 +
2426 +        final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2427 +        final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2428 +        f.complete(v1);
2429 +        final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2430 +        final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2431 +        checkCompletedWithWrappedCFException(h0);
2432 +        checkCompletedWithWrappedCFException(h1);
2433 +        checkCompletedWithWrappedCFException(h2);
2434 +        checkCompletedWithWrappedCFException(h3);
2435 +        for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2436 +
2437 +        g.complete(v2);
2438 +
2439 +        // unspecified behavior - both source completions available
2440 +        final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2441 +        final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2442 +
2443 +        checkCompletedWithWrappedCFException(h4);
2444 +        assertTrue(Objects.equals(v1, rs[4].value) ||
2445 +                   Objects.equals(v2, rs[4].value));
2446 +        checkCompletedWithWrappedCFException(h5);
2447 +        assertTrue(Objects.equals(v1, rs[5].value) ||
2448 +                   Objects.equals(v2, rs[5].value));
2449 +
2450 +        checkCompletedNormally(f, v1);
2451 +        checkCompletedNormally(g, v2);
2452 +    }}
2453 +
2454 +    /**
2455 +     * runAfterEither result completes normally after normal completion
2456 +     * of either source
2457 +     */
2458 +    public void testRunAfterEither_normalCompletion() {
2459 +        for (ExecutionMode m : ExecutionMode.values())
2460 +        for (Integer v1 : new Integer[] { 1, null })
2461 +        for (Integer v2 : new Integer[] { 2, null })
2462 +    {
2463 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2464 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2465 +        final Noop[] rs = new Noop[6];
2466 +        for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2467 +
2468 +        final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2469 +        final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2470 +        checkIncomplete(h0);
2471 +        checkIncomplete(h1);
2472 +        rs[0].assertNotInvoked();
2473 +        rs[1].assertNotInvoked();
2474 +        f.complete(v1);
2475 +        checkCompletedNormally(h0, null);
2476 +        checkCompletedNormally(h1, null);
2477 +        rs[0].assertInvoked();
2478 +        rs[1].assertInvoked();
2479 +        final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2480 +        final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2481 +        checkCompletedNormally(h2, null);
2482 +        checkCompletedNormally(h3, null);
2483 +        rs[2].assertInvoked();
2484 +        rs[3].assertInvoked();
2485 +
2486 +        g.complete(v2);
2487 +
2488 +        final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2489 +        final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2490 +
2491 +        checkCompletedNormally(f, v1);
2492 +        checkCompletedNormally(g, v2);
2493 +        checkCompletedNormally(h0, null);
2494 +        checkCompletedNormally(h1, null);
2495 +        checkCompletedNormally(h2, null);
2496 +        checkCompletedNormally(h3, null);
2497 +        checkCompletedNormally(h4, null);
2498 +        checkCompletedNormally(h5, null);
2499 +        for (int i = 0; i < 6; i++) rs[i].assertInvoked();
2500 +    }}
2501 +
2502 +    /**
2503 +     * runAfterEither result completes exceptionally after exceptional
2504 +     * completion of either source
2505 +     */
2506 +    public void testRunAfterEither_exceptionalCompletion() {
2507 +        for (ExecutionMode m : ExecutionMode.values())
2508 +        for (Integer v1 : new Integer[] { 1, null })
2509 +    {
2510 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2511 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2512 +        final CFException ex = new CFException();
2513 +        final Noop[] rs = new Noop[6];
2514 +        for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2515 +
2516 +        final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2517 +        final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2518 +        checkIncomplete(h0);
2519 +        checkIncomplete(h1);
2520 +        rs[0].assertNotInvoked();
2521 +        rs[1].assertNotInvoked();
2522 +        f.completeExceptionally(ex);
2523 +        checkCompletedWithWrappedException(h0, ex);
2524 +        checkCompletedWithWrappedException(h1, ex);
2525 +        final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2526 +        final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2527 +        checkCompletedWithWrappedException(h2, ex);
2528 +        checkCompletedWithWrappedException(h3, ex);
2529 +
2530 +        g.complete(v1);
2531 +
2532 +        // unspecified behavior - both source completions available
2533 +        final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2534 +        final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2535 +        try {
2536 +            assertNull(h4.join());
2537 +            rs[4].assertInvoked();
2538 +        } catch (CompletionException ok) {
2539 +            checkCompletedWithWrappedException(h4, ex);
2540 +            rs[4].assertNotInvoked();
2541 +        }
2542 +        try {
2543 +            assertNull(h5.join());
2544 +            rs[5].assertInvoked();
2545 +        } catch (CompletionException ok) {
2546 +            checkCompletedWithWrappedException(h5, ex);
2547 +            rs[5].assertNotInvoked();
2548 +        }
2549 +
2550 +        checkCompletedExceptionally(f, ex);
2551 +        checkCompletedNormally(g, v1);
2552 +        checkCompletedWithWrappedException(h0, ex);
2553 +        checkCompletedWithWrappedException(h1, ex);
2554 +        checkCompletedWithWrappedException(h2, ex);
2555 +        checkCompletedWithWrappedException(h3, ex);
2556 +        checkCompletedWithWrappedException(h4, ex);
2557 +        for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2558 +    }}
2559 +
2560 +    public void testRunAfterEither_exceptionalCompletion2() {
2561 +        for (ExecutionMode m : ExecutionMode.values())
2562 +        for (boolean fFirst : new boolean[] { true, false })
2563 +        for (Integer v1 : new Integer[] { 1, null })
2564 +    {
2565 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2566 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2567 +        final CFException ex = new CFException();
2568 +        final Noop[] rs = new Noop[6];
2569 +        for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2570 +
2571 +        final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2572 +        final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2573 +        if (fFirst) {
2574 +            f.complete(v1);
2575 +            g.completeExceptionally(ex);
2576 +        } else {
2577 +            g.completeExceptionally(ex);
2578 +            f.complete(v1);
2579 +        }
2580 +        final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2581 +        final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2582 +
2583 +        // unspecified behavior - both source completions available
2584 +        try {
2585 +            assertEquals(null, h0.join());
2586 +            rs[0].assertInvoked();
2587 +        } catch (CompletionException ok) {
2588 +            checkCompletedWithWrappedException(h0, ex);
2589 +            rs[0].assertNotInvoked();
2590 +        }
2591 +        try {
2592 +            assertEquals(null, h1.join());
2593 +            rs[1].assertInvoked();
2594 +        } catch (CompletionException ok) {
2595 +            checkCompletedWithWrappedException(h1, ex);
2596 +            rs[1].assertNotInvoked();
2597 +        }
2598 +        try {
2599 +            assertEquals(null, h2.join());
2600 +            rs[2].assertInvoked();
2601 +        } catch (CompletionException ok) {
2602 +            checkCompletedWithWrappedException(h2, ex);
2603 +            rs[2].assertNotInvoked();
2604 +        }
2605 +        try {
2606 +            assertEquals(null, h3.join());
2607 +            rs[3].assertInvoked();
2608 +        } catch (CompletionException ok) {
2609 +            checkCompletedWithWrappedException(h3, ex);
2610 +            rs[3].assertNotInvoked();
2611 +        }
2612 +
2613 +        checkCompletedNormally(f, v1);
2614 +        checkCompletedExceptionally(g, ex);
2615 +    }}
2616 +
2617 +    /**
2618 +     * runAfterEither result completes exceptionally if either source cancelled
2619 +     */
2620 +    public void testRunAfterEither_sourceCancelled() {
2621 +        for (ExecutionMode m : ExecutionMode.values())
2622 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2623 +        for (Integer v1 : new Integer[] { 1, null })
2624 +    {
2625 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2626 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2627 +        final Noop[] rs = new Noop[6];
2628 +        for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2629 +
2630 +        final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2631 +        final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2632 +        checkIncomplete(h0);
2633 +        checkIncomplete(h1);
2634 +        rs[0].assertNotInvoked();
2635 +        rs[1].assertNotInvoked();
2636 +        f.cancel(mayInterruptIfRunning);
2637 +        checkCompletedWithWrappedCancellationException(h0);
2638 +        checkCompletedWithWrappedCancellationException(h1);
2639 +        final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2640 +        final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2641 +        checkCompletedWithWrappedCancellationException(h2);
2642 +        checkCompletedWithWrappedCancellationException(h3);
2643 +
2644 +        g.complete(v1);
2645 +
2646 +        // unspecified behavior - both source completions available
2647 +        final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2648 +        final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2649 +        try {
2650 +            assertNull(h4.join());
2651 +            rs[4].assertInvoked();
2652 +        } catch (CompletionException ok) {
2653 +            checkCompletedWithWrappedCancellationException(h4);
2654 +            rs[4].assertNotInvoked();
2655 +        }
2656 +        try {
2657 +            assertNull(h5.join());
2658 +            rs[5].assertInvoked();
2659 +        } catch (CompletionException ok) {
2660 +            checkCompletedWithWrappedCancellationException(h5);
2661 +            rs[5].assertNotInvoked();
2662 +        }
2663 +
2664 +        checkCancelled(f);
2665 +        checkCompletedNormally(g, v1);
2666 +        checkCompletedWithWrappedCancellationException(h0);
2667 +        checkCompletedWithWrappedCancellationException(h1);
2668 +        checkCompletedWithWrappedCancellationException(h2);
2669 +        checkCompletedWithWrappedCancellationException(h3);
2670 +        for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2671 +    }}
2672 +
2673 +    /**
2674 +     * runAfterEither result completes exceptionally if action does
2675 +     */
2676 +    public void testRunAfterEither_actionFailed() {
2677 +        for (ExecutionMode m : ExecutionMode.values())
2678 +        for (Integer v1 : new Integer[] { 1, null })
2679 +        for (Integer v2 : new Integer[] { 2, null })
2680 +    {
2681 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2682 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2683 +        final FailingRunnable[] rs = new FailingRunnable[6];
2684 +        for (int i = 0; i < rs.length; i++) rs[i] = new FailingRunnable(m);
2685 +
2686 +        final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2687 +        final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2688 +        f.complete(v1);
2689 +        final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2690 +        final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2691 +        checkCompletedWithWrappedCFException(h0);
2692 +        checkCompletedWithWrappedCFException(h1);
2693 +        checkCompletedWithWrappedCFException(h2);
2694 +        checkCompletedWithWrappedCFException(h3);
2695 +        for (int i = 0; i < 4; i++) rs[i].assertInvoked();
2696 +        g.complete(v2);
2697 +        final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2698 +        final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2699 +        checkCompletedWithWrappedCFException(h4);
2700 +        checkCompletedWithWrappedCFException(h5);
2701 +
2702 +        checkCompletedNormally(f, v1);
2703 +        checkCompletedNormally(g, v2);
2704 +        for (int i = 0; i < 6; i++) rs[i].assertInvoked();
2705 +    }}
2706 +
2707 +    /**
2708 +     * thenCompose result completes normally after normal completion of source
2709 +     */
2710 +    public void testThenCompose_normalCompletion() {
2711 +        for (ExecutionMode m : ExecutionMode.values())
2712 +        for (boolean createIncomplete : new boolean[] { true, false })
2713 +        for (Integer v1 : new Integer[] { 1, null })
2714 +    {
2715 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2716 +        final CompletableFutureInc r = new CompletableFutureInc(m);
2717 +        if (!createIncomplete) f.complete(v1);
2718 +        final CompletableFuture<Integer> g = m.thenCompose(f, r);
2719 +        if (createIncomplete) f.complete(v1);
2720 +
2721 +        checkCompletedNormally(g, inc(v1));
2722 +        checkCompletedNormally(f, v1);
2723 +        r.assertValue(v1);
2724 +    }}
2725 +
2726 +    /**
2727 +     * thenCompose result completes exceptionally after exceptional
2728 +     * completion of source
2729 +     */
2730 +    public void testThenCompose_exceptionalCompletion() {
2731 +        for (ExecutionMode m : ExecutionMode.values())
2732 +        for (boolean createIncomplete : new boolean[] { true, false })
2733 +    {
2734 +        final CFException ex = new CFException();
2735 +        final CompletableFutureInc r = new CompletableFutureInc(m);
2736 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2737 +        if (!createIncomplete) f.completeExceptionally(ex);
2738 +        final CompletableFuture<Integer> g = m.thenCompose(f, r);
2739 +        if (createIncomplete) f.completeExceptionally(ex);
2740 +
2741 +        checkCompletedWithWrappedException(g, ex);
2742 +        checkCompletedExceptionally(f, ex);
2743 +        r.assertNotInvoked();
2744 +    }}
2745 +
2746 +    /**
2747 +     * thenCompose result completes exceptionally if action does
2748 +     */
2749 +    public void testThenCompose_actionFailed() {
2750 +        for (ExecutionMode m : ExecutionMode.values())
2751 +        for (boolean createIncomplete : new boolean[] { true, false })
2752 +        for (Integer v1 : new Integer[] { 1, null })
2753 +    {
2754 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2755 +        final FailingCompletableFutureFunction r
2756 +            = new FailingCompletableFutureFunction(m);
2757 +        if (!createIncomplete) f.complete(v1);
2758 +        final CompletableFuture<Integer> g = m.thenCompose(f, r);
2759 +        if (createIncomplete) f.complete(v1);
2760 +
2761 +        checkCompletedWithWrappedCFException(g);
2762 +        checkCompletedNormally(f, v1);
2763 +    }}
2764 +
2765 +    /**
2766 +     * thenCompose result completes exceptionally if source cancelled
2767 +     */
2768 +    public void testThenCompose_sourceCancelled() {
2769 +        for (ExecutionMode m : ExecutionMode.values())
2770 +        for (boolean createIncomplete : new boolean[] { true, false })
2771 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2772 +    {
2773 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2774 +        final CompletableFutureInc r = new CompletableFutureInc(m);
2775 +        if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
2776 +        final CompletableFuture<Integer> g = m.thenCompose(f, r);
2777 +        if (createIncomplete) {
2778 +            checkIncomplete(g);
2779 +            assertTrue(f.cancel(mayInterruptIfRunning));
2780 +        }
2781 +
2782 +        checkCompletedWithWrappedCancellationException(g);
2783 +        checkCancelled(f);
2784 +    }}
2785 +
2786 +    // other static methods
2787 +
2788 +    /**
2789 +     * allOf(no component futures) returns a future completed normally
2790 +     * with the value null
2791 +     */
2792 +    public void testAllOf_empty() throws Exception {
2793 +        CompletableFuture<Void> f = CompletableFuture.allOf();
2794 +        checkCompletedNormally(f, null);
2795 +    }
2796 +
2797 +    /**
2798 +     * allOf returns a future completed normally with the value null
2799 +     * when all components complete normally
2800 +     */
2801 +    public void testAllOf_normal() throws Exception {
2802 +        for (int k = 1; k < 20; ++k) {
2803 +            CompletableFuture<Integer>[] fs
2804 +                = (CompletableFuture<Integer>[]) new CompletableFuture[k];
2805 +            for (int i = 0; i < k; ++i)
2806 +                fs[i] = new CompletableFuture<>();
2807 +            CompletableFuture<Void> f = CompletableFuture.allOf(fs);
2808 +            for (int i = 0; i < k; ++i) {
2809 +                checkIncomplete(f);
2810 +                checkIncomplete(CompletableFuture.allOf(fs));
2811 +                fs[i].complete(one);
2812 +            }
2813 +            checkCompletedNormally(f, null);
2814 +            checkCompletedNormally(CompletableFuture.allOf(fs), null);
2815 +        }
2816 +    }
2817 +
2818 +    public void testAllOf_backwards() throws Exception {
2819 +        for (int k = 1; k < 20; ++k) {
2820 +            CompletableFuture<Integer>[] fs
2821 +                = (CompletableFuture<Integer>[]) new CompletableFuture[k];
2822 +            for (int i = 0; i < k; ++i)
2823 +                fs[i] = new CompletableFuture<>();
2824 +            CompletableFuture<Void> f = CompletableFuture.allOf(fs);
2825 +            for (int i = k - 1; i >= 0; i--) {
2826 +                checkIncomplete(f);
2827 +                checkIncomplete(CompletableFuture.allOf(fs));
2828 +                fs[i].complete(one);
2829 +            }
2830 +            checkCompletedNormally(f, null);
2831 +            checkCompletedNormally(CompletableFuture.allOf(fs), null);
2832 +        }
2833 +    }
2834 +
2835 +    /**
2836 +     * anyOf(no component futures) returns an incomplete future
2837 +     */
2838 +    public void testAnyOf_empty() throws Exception {
2839 +        CompletableFuture<Object> f = CompletableFuture.anyOf();
2840 +        checkIncomplete(f);
2841 +    }
2842 +
2843 +    /**
2844 +     * anyOf returns a future completed normally with a value when
2845 +     * a component future does
2846 +     */
2847 +    public void testAnyOf_normal() throws Exception {
2848 +        for (int k = 0; k < 10; ++k) {
2849 +            CompletableFuture[] fs = new CompletableFuture[k];
2850 +            for (int i = 0; i < k; ++i)
2851 +                fs[i] = new CompletableFuture<>();
2852 +            CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
2853 +            checkIncomplete(f);
2854 +            for (int i = 0; i < k; ++i) {
2855 +                fs[i].complete(one);
2856 +                checkCompletedNormally(f, one);
2857 +                checkCompletedNormally(CompletableFuture.anyOf(fs), one);
2858 +            }
2859 +        }
2860 +    }
2861 +
2862 +    /**
2863 +     * anyOf result completes exceptionally when any component does.
2864 +     */
2865 +    public void testAnyOf_exceptional() throws Exception {
2866 +        for (int k = 0; k < 10; ++k) {
2867 +            CompletableFuture[] fs = new CompletableFuture[k];
2868 +            for (int i = 0; i < k; ++i)
2869 +                fs[i] = new CompletableFuture<>();
2870 +            CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
2871 +            checkIncomplete(f);
2872 +            for (int i = 0; i < k; ++i) {
2873 +                fs[i].completeExceptionally(new CFException());
2874 +                checkCompletedWithWrappedCFException(f);
2875 +                checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
2876 +            }
2877 +        }
2878 +    }
2879 +
2880 +    /**
2881 +     * Completion methods throw NullPointerException with null arguments
2882 +     */
2883 +    public void testNPE() {
2884 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2885 +        CompletableFuture<Integer> g = new CompletableFuture<>();
2886 +        CompletableFuture<Integer> nullFuture = (CompletableFuture<Integer>)null;
2887 +        CompletableFuture<?> h;
2888 +        ThreadExecutor exec = new ThreadExecutor();
2889 +
2890 +        Runnable[] throwingActions = {
2891 +            () -> CompletableFuture.supplyAsync(null),
2892 +            () -> CompletableFuture.supplyAsync(null, exec),
2893 +            () -> CompletableFuture.supplyAsync(new IntegerSupplier(ExecutionMode.DEFAULT, 42), null),
2894 +
2895 +            () -> CompletableFuture.runAsync(null),
2896 +            () -> CompletableFuture.runAsync(null, exec),
2897 +            () -> CompletableFuture.runAsync(() -> {}, null),
2898 +
2899 +            () -> f.completeExceptionally(null),
2900 +
2901 +            () -> f.thenApply(null),
2902 +            () -> f.thenApplyAsync(null),
2903 +            () -> f.thenApplyAsync((x) -> x, null),
2904 +            () -> f.thenApplyAsync(null, exec),
2905 +
2906 +            () -> f.thenAccept(null),
2907 +            () -> f.thenAcceptAsync(null),
2908 +            () -> f.thenAcceptAsync((x) -> {} , null),
2909 +            () -> f.thenAcceptAsync(null, exec),
2910 +
2911 +            () -> f.thenRun(null),
2912 +            () -> f.thenRunAsync(null),
2913 +            () -> f.thenRunAsync(() -> {} , null),
2914 +            () -> f.thenRunAsync(null, exec),
2915 +
2916 +            () -> f.thenCombine(g, null),
2917 +            () -> f.thenCombineAsync(g, null),
2918 +            () -> f.thenCombineAsync(g, null, exec),
2919 +            () -> f.thenCombine(nullFuture, (x, y) -> x),
2920 +            () -> f.thenCombineAsync(nullFuture, (x, y) -> x),
2921 +            () -> f.thenCombineAsync(nullFuture, (x, y) -> x, exec),
2922 +            () -> f.thenCombineAsync(g, (x, y) -> x, null),
2923 +
2924 +            () -> f.thenAcceptBoth(g, null),
2925 +            () -> f.thenAcceptBothAsync(g, null),
2926 +            () -> f.thenAcceptBothAsync(g, null, exec),
2927 +            () -> f.thenAcceptBoth(nullFuture, (x, y) -> {}),
2928 +            () -> f.thenAcceptBothAsync(nullFuture, (x, y) -> {}),
2929 +            () -> f.thenAcceptBothAsync(nullFuture, (x, y) -> {}, exec),
2930 +            () -> f.thenAcceptBothAsync(g, (x, y) -> {}, null),
2931 +
2932 +            () -> f.runAfterBoth(g, null),
2933 +            () -> f.runAfterBothAsync(g, null),
2934 +            () -> f.runAfterBothAsync(g, null, exec),
2935 +            () -> f.runAfterBoth(nullFuture, () -> {}),
2936 +            () -> f.runAfterBothAsync(nullFuture, () -> {}),
2937 +            () -> f.runAfterBothAsync(nullFuture, () -> {}, exec),
2938 +            () -> f.runAfterBothAsync(g, () -> {}, null),
2939 +
2940 +            () -> f.applyToEither(g, null),
2941 +            () -> f.applyToEitherAsync(g, null),
2942 +            () -> f.applyToEitherAsync(g, null, exec),
2943 +            () -> f.applyToEither(nullFuture, (x) -> x),
2944 +            () -> f.applyToEitherAsync(nullFuture, (x) -> x),
2945 +            () -> f.applyToEitherAsync(nullFuture, (x) -> x, exec),
2946 +            () -> f.applyToEitherAsync(g, (x) -> x, null),
2947 +
2948 +            () -> f.acceptEither(g, null),
2949 +            () -> f.acceptEitherAsync(g, null),
2950 +            () -> f.acceptEitherAsync(g, null, exec),
2951 +            () -> f.acceptEither(nullFuture, (x) -> {}),
2952 +            () -> f.acceptEitherAsync(nullFuture, (x) -> {}),
2953 +            () -> f.acceptEitherAsync(nullFuture, (x) -> {}, exec),
2954 +            () -> f.acceptEitherAsync(g, (x) -> {}, null),
2955 +
2956 +            () -> f.runAfterEither(g, null),
2957 +            () -> f.runAfterEitherAsync(g, null),
2958 +            () -> f.runAfterEitherAsync(g, null, exec),
2959 +            () -> f.runAfterEither(nullFuture, () -> {}),
2960 +            () -> f.runAfterEitherAsync(nullFuture, () -> {}),
2961 +            () -> f.runAfterEitherAsync(nullFuture, () -> {}, exec),
2962 +            () -> f.runAfterEitherAsync(g, () -> {}, null),
2963 +
2964 +            () -> f.thenCompose(null),
2965 +            () -> f.thenComposeAsync(null),
2966 +            () -> f.thenComposeAsync(new CompletableFutureInc(ExecutionMode.EXECUTOR), null),
2967 +            () -> f.thenComposeAsync(null, exec),
2968 +
2969 +            () -> f.exceptionally(null),
2970 +
2971 +            () -> f.handle(null),
2972 +
2973 +            () -> CompletableFuture.allOf((CompletableFuture<?>)null),
2974 +            () -> CompletableFuture.allOf((CompletableFuture<?>[])null),
2975 +            () -> CompletableFuture.allOf(f, null),
2976 +            () -> CompletableFuture.allOf(null, f),
2977 +
2978 +            () -> CompletableFuture.anyOf((CompletableFuture<?>)null),
2979 +            () -> CompletableFuture.anyOf((CompletableFuture<?>[])null),
2980 +            () -> CompletableFuture.anyOf(f, null),
2981 +            () -> CompletableFuture.anyOf(null, f),
2982 +
2983 +            () -> f.obtrudeException(null),
2984 +        };
2985 +
2986 +        assertThrows(NullPointerException.class, throwingActions);
2987 +        assertEquals(0, exec.count.get());
2988 +    }
2989 +
2990 +    /**
2991 +     * toCompletableFuture returns this CompletableFuture.
2992 +     */
2993 +    public void testToCompletableFuture() {
2994 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2995 +        assertSame(f, f.toCompletableFuture());
2996 +    }
2997 +
2998   }

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