ViewVC Help
View File | Revision Log | Show Annotations | Download File | Root Listing
root/jsr166/jsr166/src/test/tck/CompletableFutureTest.java
(Generate patch)

Comparing jsr166/src/test/tck/CompletableFutureTest.java (file contents):
Revision 1.2 by jsr166, Wed Feb 6 20:29:55 2013 UTC vs.
Revision 1.74 by jsr166, Fri Jun 6 21:19:22 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 +        CompletableFuture<Integer> f = new CompletableFuture<>();
321 +        assertEquals(0, f.getNumberOfDependents());
322 +        CompletableFuture g = f.thenRun(new Noop(ExecutionMode.DEFAULT));
323 +        assertEquals(1, f.getNumberOfDependents());
324 +        assertEquals(0, g.getNumberOfDependents());
325 +        CompletableFuture h = f.thenRun(new Noop(ExecutionMode.DEFAULT));
326 +        assertEquals(2, f.getNumberOfDependents());
327 +        f.complete(1);
328 +        checkCompletedNormally(g, null);
329 +        assertEquals(0, f.getNumberOfDependents());
330 +        assertEquals(0, g.getNumberOfDependents());
331 +    }
332 +
333 +    /**
334 +     * toString indicates current completion state
335 +     */
336      public void testToString() {
337          CompletableFuture<String> f;
338  
# Line 40 | Line 345 | public class CompletableFutureTest exten
345          f = new CompletableFuture<String>();
346          f.completeExceptionally(new IndexOutOfBoundsException());
347          assertTrue(f.toString().contains("[Completed exceptionally]"));
348 +
349 +        f = new CompletableFuture<String>();
350 +        f.cancel(true);
351 +        assertTrue(f.toString().contains("[Completed exceptionally]"));
352 +
353 +        f = new CompletableFuture<String>();
354 +        f.cancel(false);
355 +        assertTrue(f.toString().contains("[Completed exceptionally]"));
356 +    }
357 +
358 +    /**
359 +     * completedFuture returns a completed CompletableFuture with given value
360 +     */
361 +    public void testCompletedFuture() {
362 +        CompletableFuture<String> f = CompletableFuture.completedFuture("test");
363 +        checkCompletedNormally(f, "test");
364 +    }
365 +
366 +    abstract class CheckedAction {
367 +        int invocationCount = 0;
368 +        final ExecutionMode m;
369 +        CheckedAction(ExecutionMode m) { this.m = m; }
370 +        void invoked() {
371 +            m.checkExecutionMode();
372 +            assertEquals(0, invocationCount++);
373 +        }
374 +        void assertNotInvoked() { assertEquals(0, invocationCount); }
375 +        void assertInvoked() { assertEquals(1, invocationCount); }
376 +    }
377 +
378 +    abstract class CheckedIntegerAction extends CheckedAction {
379 +        Integer value;
380 +        CheckedIntegerAction(ExecutionMode m) { super(m); }
381 +        void assertValue(Integer expected) {
382 +            assertInvoked();
383 +            assertEquals(expected, value);
384 +        }
385 +    }
386 +
387 +    class IntegerSupplier extends CheckedAction
388 +        implements Supplier<Integer>
389 +    {
390 +        final Integer value;
391 +        IntegerSupplier(ExecutionMode m, Integer value) {
392 +            super(m);
393 +            this.value = value;
394 +        }
395 +        public Integer get() {
396 +            invoked();
397 +            return value;
398 +        }
399 +    }
400 +
401 +    // A function that handles and produces null values as well.
402 +    static Integer inc(Integer x) {
403 +        return (x == null) ? null : x + 1;
404 +    }
405 +
406 +    class NoopConsumer extends CheckedIntegerAction
407 +        implements Consumer<Integer>
408 +    {
409 +        NoopConsumer(ExecutionMode m) { super(m); }
410 +        public void accept(Integer x) {
411 +            invoked();
412 +            value = x;
413 +        }
414 +    }
415 +
416 +    class IncFunction extends CheckedIntegerAction
417 +        implements Function<Integer,Integer>
418 +    {
419 +        IncFunction(ExecutionMode m) { super(m); }
420 +        public Integer apply(Integer x) {
421 +            invoked();
422 +            return value = inc(x);
423 +        }
424 +    }
425 +
426 +    // Choose non-commutative actions for better coverage
427 +    // A non-commutative function that handles and produces null values as well.
428 +    static Integer subtract(Integer x, Integer y) {
429 +        return (x == null && y == null) ? null :
430 +            ((x == null) ? 42 : x.intValue())
431 +            - ((y == null) ? 99 : y.intValue());
432 +    }
433 +
434 +    class SubtractAction extends CheckedIntegerAction
435 +        implements BiConsumer<Integer, Integer>
436 +    {
437 +        SubtractAction(ExecutionMode m) { super(m); }
438 +        public void accept(Integer x, Integer y) {
439 +            invoked();
440 +            value = subtract(x, y);
441 +        }
442 +    }
443 +
444 +    class SubtractFunction extends CheckedIntegerAction
445 +        implements BiFunction<Integer, Integer, Integer>
446 +    {
447 +        SubtractFunction(ExecutionMode m) { super(m); }
448 +        public Integer apply(Integer x, Integer y) {
449 +            invoked();
450 +            return value = subtract(x, y);
451 +        }
452 +    }
453 +
454 +    class Noop extends CheckedAction implements Runnable {
455 +        Noop(ExecutionMode m) { super(m); }
456 +        public void run() {
457 +            invoked();
458 +        }
459 +    }
460 +
461 +    class FailingSupplier extends CheckedAction
462 +        implements Supplier<Integer>
463 +    {
464 +        FailingSupplier(ExecutionMode m) { super(m); }
465 +        public Integer get() {
466 +            invoked();
467 +            throw new CFException();
468 +        }
469 +    }
470 +
471 +    class FailingConsumer extends CheckedIntegerAction
472 +        implements Consumer<Integer>
473 +    {
474 +        FailingConsumer(ExecutionMode m) { super(m); }
475 +        public void accept(Integer x) {
476 +            invoked();
477 +            value = x;
478 +            throw new CFException();
479 +        }
480 +    }
481 +
482 +    class FailingBiConsumer extends CheckedIntegerAction
483 +        implements BiConsumer<Integer, Integer>
484 +    {
485 +        FailingBiConsumer(ExecutionMode m) { super(m); }
486 +        public void accept(Integer x, Integer y) {
487 +            invoked();
488 +            value = subtract(x, y);
489 +            throw new CFException();
490 +        }
491 +    }
492 +
493 +    class FailingFunction extends CheckedIntegerAction
494 +        implements Function<Integer, Integer>
495 +    {
496 +        FailingFunction(ExecutionMode m) { super(m); }
497 +        public Integer apply(Integer x) {
498 +            invoked();
499 +            value = x;
500 +            throw new CFException();
501 +        }
502 +    }
503 +
504 +    class FailingBiFunction extends CheckedIntegerAction
505 +        implements BiFunction<Integer, Integer, Integer>
506 +    {
507 +        FailingBiFunction(ExecutionMode m) { super(m); }
508 +        public Integer apply(Integer x, Integer y) {
509 +            invoked();
510 +            value = subtract(x, y);
511 +            throw new CFException();
512 +        }
513 +    }
514 +
515 +    class FailingRunnable extends CheckedAction implements Runnable {
516 +        FailingRunnable(ExecutionMode m) { super(m); }
517 +        public void run() {
518 +            invoked();
519 +            throw new CFException();
520 +        }
521 +    }
522 +
523 +
524 +    class CompletableFutureInc extends CheckedIntegerAction
525 +        implements Function<Integer, CompletableFuture<Integer>>
526 +    {
527 +        CompletableFutureInc(ExecutionMode m) { super(m); }
528 +        public CompletableFuture<Integer> apply(Integer x) {
529 +            invoked();
530 +            value = x;
531 +            CompletableFuture<Integer> f = new CompletableFuture<>();
532 +            f.complete(inc(x));
533 +            return f;
534 +        }
535 +    }
536 +
537 +    class FailingCompletableFutureFunction extends CheckedIntegerAction
538 +        implements Function<Integer, CompletableFuture<Integer>>
539 +    {
540 +        FailingCompletableFutureFunction(ExecutionMode m) { super(m); }
541 +        public CompletableFuture<Integer> apply(Integer x) {
542 +            invoked();
543 +            value = x;
544 +            throw new CFException();
545 +        }
546 +    }
547 +
548 +    // Used for explicit executor tests
549 +    static final class ThreadExecutor implements Executor {
550 +        final AtomicInteger count = new AtomicInteger(0);
551 +        static final ThreadGroup tg = new ThreadGroup("ThreadExecutor");
552 +        static boolean startedCurrentThread() {
553 +            return Thread.currentThread().getThreadGroup() == tg;
554 +        }
555 +
556 +        public void execute(Runnable r) {
557 +            count.getAndIncrement();
558 +            new Thread(tg, r).start();
559 +        }
560 +    }
561 +
562 +    /**
563 +     * Permits the testing of parallel code for the 3 different
564 +     * execution modes without copy/pasting all the test methods.
565 +     */
566 +    enum ExecutionMode {
567 +        DEFAULT {
568 +            public void checkExecutionMode() {
569 +                assertFalse(ThreadExecutor.startedCurrentThread());
570 +                assertNull(ForkJoinTask.getPool());
571 +            }
572 +            public CompletableFuture<Void> runAsync(Runnable a) {
573 +                throw new UnsupportedOperationException();
574 +            }
575 +            public <U> CompletableFuture<U> supplyAsync(Supplier<U> a) {
576 +                throw new UnsupportedOperationException();
577 +            }
578 +            public <T> CompletableFuture<Void> thenRun
579 +                (CompletableFuture<T> f, Runnable a) {
580 +                return f.thenRun(a);
581 +            }
582 +            public <T> CompletableFuture<Void> thenAccept
583 +                (CompletableFuture<T> f, Consumer<? super T> a) {
584 +                return f.thenAccept(a);
585 +            }
586 +            public <T,U> CompletableFuture<U> thenApply
587 +                (CompletableFuture<T> f, Function<? super T,U> a) {
588 +                return f.thenApply(a);
589 +            }
590 +            public <T,U> CompletableFuture<U> thenCompose
591 +                (CompletableFuture<T> f,
592 +                 Function<? super T,? extends CompletionStage<U>> a) {
593 +                return f.thenCompose(a);
594 +            }
595 +            public <T,U> CompletableFuture<U> handle
596 +                (CompletableFuture<T> f,
597 +                 BiFunction<? super T,Throwable,? extends U> a) {
598 +                return f.handle(a);
599 +            }
600 +            public <T> CompletableFuture<T> whenComplete
601 +                (CompletableFuture<T> f,
602 +                 BiConsumer<? super T,? super Throwable> a) {
603 +                return f.whenComplete(a);
604 +            }
605 +            public <T,U> CompletableFuture<Void> runAfterBoth
606 +                (CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) {
607 +                return f.runAfterBoth(g, a);
608 +            }
609 +            public <T,U> CompletableFuture<Void> thenAcceptBoth
610 +                (CompletableFuture<T> f,
611 +                 CompletionStage<? extends U> g,
612 +                 BiConsumer<? super T,? super U> a) {
613 +                return f.thenAcceptBoth(g, a);
614 +            }
615 +            public <T,U,V> CompletableFuture<V> thenCombine
616 +                (CompletableFuture<T> f,
617 +                 CompletionStage<? extends U> g,
618 +                 BiFunction<? super T,? super U,? extends V> a) {
619 +                return f.thenCombine(g, a);
620 +            }
621 +            public <T> CompletableFuture<Void> runAfterEither
622 +                (CompletableFuture<T> f,
623 +                 CompletionStage<?> g,
624 +                 java.lang.Runnable a) {
625 +                return f.runAfterEither(g, a);
626 +            }
627 +            public <T> CompletableFuture<Void> acceptEither
628 +                (CompletableFuture<T> f,
629 +                 CompletionStage<? extends T> g,
630 +                 Consumer<? super T> a) {
631 +                return f.acceptEither(g, a);
632 +            }
633 +            public <T,U> CompletableFuture<U> applyToEither
634 +                (CompletableFuture<T> f,
635 +                 CompletionStage<? extends T> g,
636 +                 Function<? super T,U> a) {
637 +                return f.applyToEither(g, a);
638 +            }
639 +        },
640 +
641 +        ASYNC {
642 +            public void checkExecutionMode() {
643 +                assertSame(ForkJoinPool.commonPool(),
644 +                           ForkJoinTask.getPool());
645 +            }
646 +            public CompletableFuture<Void> runAsync(Runnable a) {
647 +                return CompletableFuture.runAsync(a);
648 +            }
649 +            public <U> CompletableFuture<U> supplyAsync(Supplier<U> a) {
650 +                return CompletableFuture.supplyAsync(a);
651 +            }
652 +            public <T> CompletableFuture<Void> thenRun
653 +                (CompletableFuture<T> f, Runnable a) {
654 +                return f.thenRunAsync(a);
655 +            }
656 +            public <T> CompletableFuture<Void> thenAccept
657 +                (CompletableFuture<T> f, Consumer<? super T> a) {
658 +                return f.thenAcceptAsync(a);
659 +            }
660 +            public <T,U> CompletableFuture<U> thenApply
661 +                (CompletableFuture<T> f, Function<? super T,U> a) {
662 +                return f.thenApplyAsync(a);
663 +            }
664 +            public <T,U> CompletableFuture<U> thenCompose
665 +                (CompletableFuture<T> f,
666 +                 Function<? super T,? extends CompletionStage<U>> a) {
667 +                return f.thenComposeAsync(a);
668 +            }
669 +            public <T,U> CompletableFuture<U> handle
670 +                (CompletableFuture<T> f,
671 +                 BiFunction<? super T,Throwable,? extends U> a) {
672 +                return f.handleAsync(a);
673 +            }
674 +            public <T> CompletableFuture<T> whenComplete
675 +                (CompletableFuture<T> f,
676 +                 BiConsumer<? super T,? super Throwable> a) {
677 +                return f.whenCompleteAsync(a);
678 +            }
679 +            public <T,U> CompletableFuture<Void> runAfterBoth
680 +                (CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) {
681 +                return f.runAfterBothAsync(g, a);
682 +            }
683 +            public <T,U> CompletableFuture<Void> thenAcceptBoth
684 +                (CompletableFuture<T> f,
685 +                 CompletionStage<? extends U> g,
686 +                 BiConsumer<? super T,? super U> a) {
687 +                return f.thenAcceptBothAsync(g, a);
688 +            }
689 +            public <T,U,V> CompletableFuture<V> thenCombine
690 +                (CompletableFuture<T> f,
691 +                 CompletionStage<? extends U> g,
692 +                 BiFunction<? super T,? super U,? extends V> a) {
693 +                return f.thenCombineAsync(g, a);
694 +            }
695 +            public <T> CompletableFuture<Void> runAfterEither
696 +                (CompletableFuture<T> f,
697 +                 CompletionStage<?> g,
698 +                 java.lang.Runnable a) {
699 +                return f.runAfterEitherAsync(g, a);
700 +            }
701 +            public <T> CompletableFuture<Void> acceptEither
702 +                (CompletableFuture<T> f,
703 +                 CompletionStage<? extends T> g,
704 +                 Consumer<? super T> a) {
705 +                return f.acceptEitherAsync(g, a);
706 +            }
707 +            public <T,U> CompletableFuture<U> applyToEither
708 +                (CompletableFuture<T> f,
709 +                 CompletionStage<? extends T> g,
710 +                 Function<? super T,U> a) {
711 +                return f.applyToEitherAsync(g, a);
712 +            }
713 +        },
714 +
715 +        EXECUTOR {
716 +            public void checkExecutionMode() {
717 +                assertTrue(ThreadExecutor.startedCurrentThread());
718 +            }
719 +            public CompletableFuture<Void> runAsync(Runnable a) {
720 +                return CompletableFuture.runAsync(a, new ThreadExecutor());
721 +            }
722 +            public <U> CompletableFuture<U> supplyAsync(Supplier<U> a) {
723 +                return CompletableFuture.supplyAsync(a, new ThreadExecutor());
724 +            }
725 +            public <T> CompletableFuture<Void> thenRun
726 +                (CompletableFuture<T> f, Runnable a) {
727 +                return f.thenRunAsync(a, new ThreadExecutor());
728 +            }
729 +            public <T> CompletableFuture<Void> thenAccept
730 +                (CompletableFuture<T> f, Consumer<? super T> a) {
731 +                return f.thenAcceptAsync(a, new ThreadExecutor());
732 +            }
733 +            public <T,U> CompletableFuture<U> thenApply
734 +                (CompletableFuture<T> f, Function<? super T,U> a) {
735 +                return f.thenApplyAsync(a, new ThreadExecutor());
736 +            }
737 +            public <T,U> CompletableFuture<U> thenCompose
738 +                (CompletableFuture<T> f,
739 +                 Function<? super T,? extends CompletionStage<U>> a) {
740 +                return f.thenComposeAsync(a, new ThreadExecutor());
741 +            }
742 +            public <T,U> CompletableFuture<U> handle
743 +                (CompletableFuture<T> f,
744 +                 BiFunction<? super T,Throwable,? extends U> a) {
745 +                return f.handleAsync(a, new ThreadExecutor());
746 +            }
747 +            public <T> CompletableFuture<T> whenComplete
748 +                (CompletableFuture<T> f,
749 +                 BiConsumer<? super T,? super Throwable> a) {
750 +                return f.whenCompleteAsync(a, new ThreadExecutor());
751 +            }
752 +            public <T,U> CompletableFuture<Void> runAfterBoth
753 +                (CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) {
754 +                return f.runAfterBothAsync(g, a, new ThreadExecutor());
755 +            }
756 +            public <T,U> CompletableFuture<Void> thenAcceptBoth
757 +                (CompletableFuture<T> f,
758 +                 CompletionStage<? extends U> g,
759 +                 BiConsumer<? super T,? super U> a) {
760 +                return f.thenAcceptBothAsync(g, a, new ThreadExecutor());
761 +            }
762 +            public <T,U,V> CompletableFuture<V> thenCombine
763 +                (CompletableFuture<T> f,
764 +                 CompletionStage<? extends U> g,
765 +                 BiFunction<? super T,? super U,? extends V> a) {
766 +                return f.thenCombineAsync(g, a, new ThreadExecutor());
767 +            }
768 +            public <T> CompletableFuture<Void> runAfterEither
769 +                (CompletableFuture<T> f,
770 +                 CompletionStage<?> g,
771 +                 java.lang.Runnable a) {
772 +                return f.runAfterEitherAsync(g, a, new ThreadExecutor());
773 +            }
774 +            public <T> CompletableFuture<Void> acceptEither
775 +                (CompletableFuture<T> f,
776 +                 CompletionStage<? extends T> g,
777 +                 Consumer<? super T> a) {
778 +                return f.acceptEitherAsync(g, a, new ThreadExecutor());
779 +            }
780 +            public <T,U> CompletableFuture<U> applyToEither
781 +                (CompletableFuture<T> f,
782 +                 CompletionStage<? extends T> g,
783 +                 Function<? super T,U> a) {
784 +                return f.applyToEitherAsync(g, a, new ThreadExecutor());
785 +            }
786 +        };
787 +
788 +        public abstract void checkExecutionMode();
789 +        public abstract CompletableFuture<Void> runAsync(Runnable a);
790 +        public abstract <U> CompletableFuture<U> supplyAsync(Supplier<U> a);
791 +        public abstract <T> CompletableFuture<Void> thenRun
792 +            (CompletableFuture<T> f, Runnable a);
793 +        public abstract <T> CompletableFuture<Void> thenAccept
794 +            (CompletableFuture<T> f, Consumer<? super T> a);
795 +        public abstract <T,U> CompletableFuture<U> thenApply
796 +            (CompletableFuture<T> f, Function<? super T,U> a);
797 +        public abstract <T,U> CompletableFuture<U> thenCompose
798 +            (CompletableFuture<T> f,
799 +             Function<? super T,? extends CompletionStage<U>> a);
800 +        public abstract <T,U> CompletableFuture<U> handle
801 +            (CompletableFuture<T> f,
802 +             BiFunction<? super T,Throwable,? extends U> a);
803 +        public abstract <T> CompletableFuture<T> whenComplete
804 +            (CompletableFuture<T> f,
805 +             BiConsumer<? super T,? super Throwable> a);
806 +        public abstract <T,U> CompletableFuture<Void> runAfterBoth
807 +            (CompletableFuture<T> f, CompletableFuture<U> g, Runnable a);
808 +        public abstract <T,U> CompletableFuture<Void> thenAcceptBoth
809 +            (CompletableFuture<T> f,
810 +             CompletionStage<? extends U> g,
811 +             BiConsumer<? super T,? super U> a);
812 +        public abstract <T,U,V> CompletableFuture<V> thenCombine
813 +            (CompletableFuture<T> f,
814 +             CompletionStage<? extends U> g,
815 +             BiFunction<? super T,? super U,? extends V> a);
816 +        public abstract <T> CompletableFuture<Void> runAfterEither
817 +            (CompletableFuture<T> f,
818 +             CompletionStage<?> g,
819 +             java.lang.Runnable a);
820 +        public abstract <T> CompletableFuture<Void> acceptEither
821 +            (CompletableFuture<T> f,
822 +             CompletionStage<? extends T> g,
823 +             Consumer<? super T> a);
824 +        public abstract <T,U> CompletableFuture<U> applyToEither
825 +            (CompletableFuture<T> f,
826 +             CompletionStage<? extends T> g,
827 +             Function<? super T,U> a);
828 +    }
829 +
830 +    /**
831 +     * exceptionally action is not invoked when source completes
832 +     * normally, and source result is propagated
833 +     */
834 +    public void testExceptionally_normalCompletion() {
835 +        for (boolean createIncomplete : new boolean[] { true, false })
836 +        for (Integer v1 : new Integer[] { 1, null })
837 +    {
838 +        final AtomicInteger a = new AtomicInteger(0);
839 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
840 +        if (!createIncomplete) f.complete(v1);
841 +        final CompletableFuture<Integer> g = f.exceptionally
842 +            ((Throwable t) -> {
843 +                // Should not be called
844 +                a.getAndIncrement();
845 +                throw new AssertionError();
846 +            });
847 +        if (createIncomplete) f.complete(v1);
848 +
849 +        checkCompletedNormally(g, v1);
850 +        checkCompletedNormally(f, v1);
851 +        assertEquals(0, a.get());
852 +    }}
853 +
854 +
855 +    /**
856 +     * exceptionally action completes with function value on source
857 +     * exception
858 +     */
859 +    public void testExceptionally_exceptionalCompletion() {
860 +        for (boolean createIncomplete : new boolean[] { true, false })
861 +        for (Integer v1 : new Integer[] { 1, null })
862 +    {
863 +        final AtomicInteger a = new AtomicInteger(0);
864 +        final CFException ex = new CFException();
865 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
866 +        if (!createIncomplete) f.completeExceptionally(ex);
867 +        final CompletableFuture<Integer> g = f.exceptionally
868 +            ((Throwable t) -> {
869 +                ExecutionMode.DEFAULT.checkExecutionMode();
870 +                threadAssertSame(t, ex);
871 +                a.getAndIncrement();
872 +                return v1;
873 +            });
874 +        if (createIncomplete) f.completeExceptionally(ex);
875 +
876 +        checkCompletedNormally(g, v1);
877 +        assertEquals(1, a.get());
878 +    }}
879 +
880 +    public void testExceptionally_exceptionalCompletionActionFailed() {
881 +        for (boolean createIncomplete : new boolean[] { true, false })
882 +        for (Integer v1 : new Integer[] { 1, null })
883 +    {
884 +        final AtomicInteger a = new AtomicInteger(0);
885 +        final CFException ex1 = new CFException();
886 +        final CFException ex2 = new CFException();
887 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
888 +        if (!createIncomplete) f.completeExceptionally(ex1);
889 +        final CompletableFuture<Integer> g = f.exceptionally
890 +            ((Throwable t) -> {
891 +                ExecutionMode.DEFAULT.checkExecutionMode();
892 +                threadAssertSame(t, ex1);
893 +                a.getAndIncrement();
894 +                throw ex2;
895 +            });
896 +        if (createIncomplete) f.completeExceptionally(ex1);
897 +
898 +        checkCompletedWithWrappedException(g, ex2);
899 +        assertEquals(1, a.get());
900 +    }}
901 +
902 +    /**
903 +     * handle action completes normally with function value on normal
904 +     * completion of source
905 +     */
906 +    public void testHandle_normalCompletion() {
907 +        for (ExecutionMode m : ExecutionMode.values())
908 +        for (boolean createIncomplete : new boolean[] { true, false })
909 +        for (Integer v1 : new Integer[] { 1, null })
910 +    {
911 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
912 +        final AtomicInteger a = new AtomicInteger(0);
913 +        if (!createIncomplete) f.complete(v1);
914 +        final CompletableFuture<Integer> g = m.handle
915 +            (f,
916 +             (Integer x, Throwable t) -> {
917 +                m.checkExecutionMode();
918 +                threadAssertSame(x, v1);
919 +                threadAssertNull(t);
920 +                a.getAndIncrement();
921 +                return inc(v1);
922 +            });
923 +        if (createIncomplete) f.complete(v1);
924 +
925 +        checkCompletedNormally(g, inc(v1));
926 +        checkCompletedNormally(f, v1);
927 +        assertEquals(1, a.get());
928 +    }}
929 +
930 +    /**
931 +     * handle action completes normally with function value on
932 +     * exceptional completion of source
933 +     */
934 +    public void testHandle_exceptionalCompletion() {
935 +        for (ExecutionMode m : ExecutionMode.values())
936 +        for (boolean createIncomplete : new boolean[] { true, false })
937 +        for (Integer v1 : new Integer[] { 1, null })
938 +    {
939 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
940 +        final AtomicInteger a = new AtomicInteger(0);
941 +        final CFException ex = new CFException();
942 +        if (!createIncomplete) f.completeExceptionally(ex);
943 +        final CompletableFuture<Integer> g = m.handle
944 +            (f,
945 +             (Integer x, Throwable t) -> {
946 +                m.checkExecutionMode();
947 +                threadAssertNull(x);
948 +                threadAssertSame(t, ex);
949 +                a.getAndIncrement();
950 +                return v1;
951 +            });
952 +        if (createIncomplete) f.completeExceptionally(ex);
953 +
954 +        checkCompletedNormally(g, v1);
955 +        checkCompletedExceptionally(f, ex);
956 +        assertEquals(1, a.get());
957 +    }}
958 +
959 +    /**
960 +     * handle action completes normally with function value on
961 +     * cancelled source
962 +     */
963 +    public void testHandle_sourceCancelled() {
964 +        for (ExecutionMode m : ExecutionMode.values())
965 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
966 +        for (boolean createIncomplete : new boolean[] { true, false })
967 +        for (Integer v1 : new Integer[] { 1, null })
968 +    {
969 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
970 +        final AtomicInteger a = new AtomicInteger(0);
971 +        if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
972 +        final CompletableFuture<Integer> g = m.handle
973 +            (f,
974 +             (Integer x, Throwable t) -> {
975 +                m.checkExecutionMode();
976 +                threadAssertNull(x);
977 +                threadAssertTrue(t instanceof CancellationException);
978 +                a.getAndIncrement();
979 +                return v1;
980 +            });
981 +        if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
982 +
983 +        checkCompletedNormally(g, v1);
984 +        checkCancelled(f);
985 +        assertEquals(1, a.get());
986 +    }}
987 +
988 +    /**
989 +     * handle result completes exceptionally if action does
990 +     */
991 +    public void testHandle_sourceFailedActionFailed() {
992 +        for (ExecutionMode m : ExecutionMode.values())
993 +        for (boolean createIncomplete : new boolean[] { true, false })
994 +    {
995 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
996 +        final AtomicInteger a = new AtomicInteger(0);
997 +        final CFException ex1 = new CFException();
998 +        final CFException ex2 = new CFException();
999 +        if (!createIncomplete) f.completeExceptionally(ex1);
1000 +        final CompletableFuture<Integer> g = m.handle
1001 +            (f,
1002 +             (Integer x, Throwable t) -> {
1003 +                m.checkExecutionMode();
1004 +                threadAssertNull(x);
1005 +                threadAssertSame(ex1, t);
1006 +                a.getAndIncrement();
1007 +                throw ex2;
1008 +            });
1009 +        if (createIncomplete) f.completeExceptionally(ex1);
1010 +
1011 +        checkCompletedWithWrappedException(g, ex2);
1012 +        checkCompletedExceptionally(f, ex1);
1013 +        assertEquals(1, a.get());
1014 +    }}
1015 +
1016 +    public void testHandle_sourceCompletedNormallyActionFailed() {
1017 +        for (ExecutionMode m : ExecutionMode.values())
1018 +        for (boolean createIncomplete : new boolean[] { true, false })
1019 +        for (Integer v1 : new Integer[] { 1, null })
1020 +    {
1021 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1022 +        final AtomicInteger a = new AtomicInteger(0);
1023 +        final CFException ex = new CFException();
1024 +        if (!createIncomplete) f.complete(v1);
1025 +        final CompletableFuture<Integer> g = m.handle
1026 +            (f,
1027 +             (Integer x, Throwable t) -> {
1028 +                m.checkExecutionMode();
1029 +                threadAssertSame(x, v1);
1030 +                threadAssertNull(t);
1031 +                a.getAndIncrement();
1032 +                throw ex;
1033 +            });
1034 +        if (createIncomplete) f.complete(v1);
1035 +
1036 +        checkCompletedWithWrappedException(g, ex);
1037 +        checkCompletedNormally(f, v1);
1038 +        assertEquals(1, a.get());
1039 +    }}
1040 +
1041 +    /**
1042 +     * runAsync completes after running Runnable
1043 +     */
1044 +    public void testRunAsync_normalCompletion() {
1045 +        ExecutionMode[] executionModes = {
1046 +            ExecutionMode.ASYNC,
1047 +            ExecutionMode.EXECUTOR,
1048 +        };
1049 +        for (ExecutionMode m : executionModes)
1050 +    {
1051 +        final Noop r = new Noop(m);
1052 +        final CompletableFuture<Void> f = m.runAsync(r);
1053 +        assertNull(f.join());
1054 +        checkCompletedNormally(f, null);
1055 +        r.assertInvoked();
1056 +    }}
1057 +
1058 +    /**
1059 +     * failing runAsync completes exceptionally after running Runnable
1060 +     */
1061 +    public void testRunAsync_exceptionalCompletion() {
1062 +        ExecutionMode[] executionModes = {
1063 +            ExecutionMode.ASYNC,
1064 +            ExecutionMode.EXECUTOR,
1065 +        };
1066 +        for (ExecutionMode m : executionModes)
1067 +    {
1068 +        final FailingRunnable r = new FailingRunnable(m);
1069 +        final CompletableFuture<Void> f = m.runAsync(r);
1070 +        checkCompletedWithWrappedCFException(f);
1071 +        r.assertInvoked();
1072 +    }}
1073 +
1074 +    /**
1075 +     * supplyAsync completes with result of supplier
1076 +     */
1077 +    public void testSupplyAsync_normalCompletion() {
1078 +        ExecutionMode[] executionModes = {
1079 +            ExecutionMode.ASYNC,
1080 +            ExecutionMode.EXECUTOR,
1081 +        };
1082 +        for (ExecutionMode m : executionModes)
1083 +        for (Integer v1 : new Integer[] { 1, null })
1084 +    {
1085 +        final IntegerSupplier r = new IntegerSupplier(m, v1);
1086 +        final CompletableFuture<Integer> f = m.supplyAsync(r);
1087 +        assertSame(v1, f.join());
1088 +        checkCompletedNormally(f, v1);
1089 +        r.assertInvoked();
1090 +    }}
1091 +
1092 +    /**
1093 +     * Failing supplyAsync completes exceptionally
1094 +     */
1095 +    public void testSupplyAsync_exceptionalCompletion() {
1096 +        ExecutionMode[] executionModes = {
1097 +            ExecutionMode.ASYNC,
1098 +            ExecutionMode.EXECUTOR,
1099 +        };
1100 +        for (ExecutionMode m : executionModes)
1101 +    {
1102 +        FailingSupplier r = new FailingSupplier(m);
1103 +        CompletableFuture<Integer> f = m.supplyAsync(r);
1104 +        checkCompletedWithWrappedCFException(f);
1105 +        r.assertInvoked();
1106 +    }}
1107 +
1108 +    // seq completion methods
1109 +
1110 +    /**
1111 +     * thenRun result completes normally after normal completion of source
1112 +     */
1113 +    public void testThenRun_normalCompletion() {
1114 +        for (ExecutionMode m : ExecutionMode.values())
1115 +        for (boolean createIncomplete : new boolean[] { true, false })
1116 +        for (Integer v1 : new Integer[] { 1, null })
1117 +    {
1118 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1119 +        final Noop r = new Noop(m);
1120 +        if (!createIncomplete) f.complete(v1);
1121 +        final CompletableFuture<Void> g = m.thenRun(f, r);
1122 +        if (createIncomplete) {
1123 +            checkIncomplete(g);
1124 +            f.complete(v1);
1125 +        }
1126 +
1127 +        checkCompletedNormally(g, null);
1128 +        checkCompletedNormally(f, v1);
1129 +        r.assertInvoked();
1130 +    }}
1131 +
1132 +    /**
1133 +     * thenRun result completes exceptionally after exceptional
1134 +     * completion of source
1135 +     */
1136 +    public void testThenRun_exceptionalCompletion() {
1137 +        for (ExecutionMode m : ExecutionMode.values())
1138 +        for (boolean createIncomplete : new boolean[] { true, false })
1139 +    {
1140 +        final CFException ex = new CFException();
1141 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1142 +        final Noop r = new Noop(m);
1143 +        if (!createIncomplete) f.completeExceptionally(ex);
1144 +        final CompletableFuture<Void> g = m.thenRun(f, r);
1145 +        if (createIncomplete) {
1146 +            checkIncomplete(g);
1147 +            f.completeExceptionally(ex);
1148 +        }
1149 +
1150 +        checkCompletedWithWrappedException(g, ex);
1151 +        checkCompletedExceptionally(f, ex);
1152 +        r.assertNotInvoked();
1153 +    }}
1154 +
1155 +    /**
1156 +     * thenRun result completes exceptionally if source cancelled
1157 +     */
1158 +    public void testThenRun_sourceCancelled() {
1159 +        for (ExecutionMode m : ExecutionMode.values())
1160 +        for (boolean createIncomplete : new boolean[] { true, false })
1161 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1162 +    {
1163 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1164 +        final Noop r = new Noop(m);
1165 +        if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1166 +        final CompletableFuture<Void> g = m.thenRun(f, r);
1167 +        if (createIncomplete) {
1168 +            checkIncomplete(g);
1169 +            assertTrue(f.cancel(mayInterruptIfRunning));
1170 +        }
1171 +
1172 +        checkCompletedWithWrappedCancellationException(g);
1173 +        checkCancelled(f);
1174 +        r.assertNotInvoked();
1175 +    }}
1176 +
1177 +    /**
1178 +     * thenRun result completes exceptionally if action does
1179 +     */
1180 +    public void testThenRun_actionFailed() {
1181 +        for (ExecutionMode m : ExecutionMode.values())
1182 +        for (boolean createIncomplete : new boolean[] { true, false })
1183 +        for (Integer v1 : new Integer[] { 1, null })
1184 +    {
1185 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1186 +        final FailingRunnable r = new FailingRunnable(m);
1187 +        if (!createIncomplete) f.complete(v1);
1188 +        final CompletableFuture<Void> g = m.thenRun(f, r);
1189 +        if (createIncomplete) {
1190 +            checkIncomplete(g);
1191 +            f.complete(v1);
1192 +        }
1193 +
1194 +        checkCompletedWithWrappedCFException(g);
1195 +        checkCompletedNormally(f, v1);
1196 +    }}
1197 +
1198 +    /**
1199 +     * thenApply result completes normally after normal completion of source
1200 +     */
1201 +    public void testThenApply_normalCompletion() {
1202 +        for (ExecutionMode m : ExecutionMode.values())
1203 +        for (boolean createIncomplete : new boolean[] { true, false })
1204 +        for (Integer v1 : new Integer[] { 1, null })
1205 +    {
1206 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1207 +        final IncFunction r = new IncFunction(m);
1208 +        if (!createIncomplete) f.complete(v1);
1209 +        final CompletableFuture<Integer> g = m.thenApply(f, r);
1210 +        if (createIncomplete) {
1211 +            checkIncomplete(g);
1212 +            f.complete(v1);
1213 +        }
1214 +
1215 +        checkCompletedNormally(g, inc(v1));
1216 +        checkCompletedNormally(f, v1);
1217 +        r.assertValue(inc(v1));
1218 +    }}
1219 +
1220 +    /**
1221 +     * thenApply result completes exceptionally after exceptional
1222 +     * completion of source
1223 +     */
1224 +    public void testThenApply_exceptionalCompletion() {
1225 +        for (ExecutionMode m : ExecutionMode.values())
1226 +        for (boolean createIncomplete : new boolean[] { true, false })
1227 +    {
1228 +        final CFException ex = new CFException();
1229 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1230 +        final IncFunction r = new IncFunction(m);
1231 +        if (!createIncomplete) f.completeExceptionally(ex);
1232 +        final CompletableFuture<Integer> g = m.thenApply(f, r);
1233 +        if (createIncomplete) {
1234 +            checkIncomplete(g);
1235 +            f.completeExceptionally(ex);
1236 +        }
1237 +
1238 +        checkCompletedWithWrappedException(g, ex);
1239 +        checkCompletedExceptionally(f, ex);
1240 +        r.assertNotInvoked();
1241 +    }}
1242 +
1243 +    /**
1244 +     * thenApply result completes exceptionally if source cancelled
1245 +     */
1246 +    public void testThenApply_sourceCancelled() {
1247 +        for (ExecutionMode m : ExecutionMode.values())
1248 +        for (boolean createIncomplete : new boolean[] { true, false })
1249 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1250 +    {
1251 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1252 +        final IncFunction r = new IncFunction(m);
1253 +        if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1254 +        final CompletableFuture<Integer> g = m.thenApply(f, r);
1255 +        if (createIncomplete) {
1256 +            checkIncomplete(g);
1257 +            assertTrue(f.cancel(mayInterruptIfRunning));
1258 +        }
1259 +
1260 +        checkCompletedWithWrappedCancellationException(g);
1261 +        checkCancelled(f);
1262 +        r.assertNotInvoked();
1263 +    }}
1264 +
1265 +    /**
1266 +     * thenApply result completes exceptionally if action does
1267 +     */
1268 +    public void testThenApply_actionFailed() {
1269 +        for (ExecutionMode m : ExecutionMode.values())
1270 +        for (boolean createIncomplete : new boolean[] { true, false })
1271 +        for (Integer v1 : new Integer[] { 1, null })
1272 +    {
1273 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1274 +        final FailingFunction r = new FailingFunction(m);
1275 +        if (!createIncomplete) f.complete(v1);
1276 +        final CompletableFuture<Integer> g = m.thenApply(f, r);
1277 +        if (createIncomplete) {
1278 +            checkIncomplete(g);
1279 +            f.complete(v1);
1280 +        }
1281 +
1282 +        checkCompletedWithWrappedCFException(g);
1283 +        checkCompletedNormally(f, v1);
1284 +    }}
1285 +
1286 +    /**
1287 +     * thenAccept result completes normally after normal completion of source
1288 +     */
1289 +    public void testThenAccept_normalCompletion() {
1290 +        for (ExecutionMode m : ExecutionMode.values())
1291 +        for (boolean createIncomplete : new boolean[] { true, false })
1292 +        for (Integer v1 : new Integer[] { 1, null })
1293 +    {
1294 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1295 +        final NoopConsumer r = new NoopConsumer(m);
1296 +        if (!createIncomplete) f.complete(v1);
1297 +        final CompletableFuture<Void> g = m.thenAccept(f, r);
1298 +        if (createIncomplete) {
1299 +            checkIncomplete(g);
1300 +            f.complete(v1);
1301 +        }
1302 +
1303 +        checkCompletedNormally(g, null);
1304 +        r.assertValue(v1);
1305 +        checkCompletedNormally(f, v1);
1306 +    }}
1307 +
1308 +    /**
1309 +     * thenAccept result completes exceptionally after exceptional
1310 +     * completion of source
1311 +     */
1312 +    public void testThenAccept_exceptionalCompletion() {
1313 +        for (ExecutionMode m : ExecutionMode.values())
1314 +        for (boolean createIncomplete : new boolean[] { true, false })
1315 +    {
1316 +        final CFException ex = new CFException();
1317 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1318 +        final NoopConsumer r = new NoopConsumer(m);
1319 +        if (!createIncomplete) f.completeExceptionally(ex);
1320 +        final CompletableFuture<Void> g = m.thenAccept(f, r);
1321 +        if (createIncomplete) {
1322 +            checkIncomplete(g);
1323 +            f.completeExceptionally(ex);
1324 +        }
1325 +
1326 +        checkCompletedWithWrappedException(g, ex);
1327 +        checkCompletedExceptionally(f, ex);
1328 +        r.assertNotInvoked();
1329 +    }}
1330 +
1331 +    /**
1332 +     * thenAccept result completes exceptionally if source cancelled
1333 +     */
1334 +    public void testThenAccept_sourceCancelled() {
1335 +        for (ExecutionMode m : ExecutionMode.values())
1336 +        for (boolean createIncomplete : new boolean[] { true, false })
1337 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1338 +    {
1339 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1340 +        final NoopConsumer r = new NoopConsumer(m);
1341 +        if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1342 +        final CompletableFuture<Void> g = m.thenAccept(f, r);
1343 +        if (createIncomplete) {
1344 +            checkIncomplete(g);
1345 +            assertTrue(f.cancel(mayInterruptIfRunning));
1346 +        }
1347 +
1348 +        checkCompletedWithWrappedCancellationException(g);
1349 +        checkCancelled(f);
1350 +        r.assertNotInvoked();
1351 +    }}
1352 +
1353 +    /**
1354 +     * thenAccept result completes exceptionally if action does
1355 +     */
1356 +    public void testThenAccept_actionFailed() {
1357 +        for (ExecutionMode m : ExecutionMode.values())
1358 +        for (boolean createIncomplete : new boolean[] { true, false })
1359 +        for (Integer v1 : new Integer[] { 1, null })
1360 +    {
1361 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1362 +        final FailingConsumer r = new FailingConsumer(m);
1363 +        if (!createIncomplete) f.complete(v1);
1364 +        final CompletableFuture<Void> g = m.thenAccept(f, r);
1365 +        if (createIncomplete) {
1366 +            checkIncomplete(g);
1367 +            f.complete(v1);
1368 +        }
1369 +
1370 +        checkCompletedWithWrappedCFException(g);
1371 +        checkCompletedNormally(f, v1);
1372 +    }}
1373 +
1374 +    /**
1375 +     * thenCombine result completes normally after normal completion
1376 +     * of sources
1377 +     */
1378 +    public void testThenCombine_normalCompletion() {
1379 +        for (ExecutionMode m : ExecutionMode.values())
1380 +        for (boolean createIncomplete : new boolean[] { true, false })
1381 +        for (boolean fFirst : new boolean[] { true, false })
1382 +        for (Integer v1 : new Integer[] { 1, null })
1383 +        for (Integer v2 : new Integer[] { 2, null })
1384 +    {
1385 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1386 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1387 +        final SubtractFunction r = new SubtractFunction(m);
1388 +
1389 +        if (fFirst) f.complete(v1); else g.complete(v2);
1390 +        if (!createIncomplete)
1391 +            if (!fFirst) f.complete(v1); else g.complete(v2);
1392 +        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1393 +        if (createIncomplete) {
1394 +            checkIncomplete(h);
1395 +            r.assertNotInvoked();
1396 +            if (!fFirst) f.complete(v1); else g.complete(v2);
1397 +        }
1398 +
1399 +        checkCompletedNormally(h, subtract(v1, v2));
1400 +        checkCompletedNormally(f, v1);
1401 +        checkCompletedNormally(g, v2);
1402 +        r.assertValue(subtract(v1, v2));
1403 +    }}
1404 +
1405 +    /**
1406 +     * thenCombine result completes exceptionally after exceptional
1407 +     * completion of either source
1408 +     */
1409 +    public void testThenCombine_exceptionalCompletion() {
1410 +        for (ExecutionMode m : ExecutionMode.values())
1411 +        for (boolean createIncomplete : new boolean[] { true, false })
1412 +        for (boolean fFirst : new boolean[] { true, false })
1413 +        for (Integer v1 : new Integer[] { 1, null })
1414 +    {
1415 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1416 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1417 +        final CFException ex = new CFException();
1418 +        final SubtractFunction r = new SubtractFunction(m);
1419 +
1420 +        (fFirst ? f : g).complete(v1);
1421 +        if (!createIncomplete)
1422 +            (!fFirst ? f : g).completeExceptionally(ex);
1423 +        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1424 +        if (createIncomplete) {
1425 +            checkIncomplete(h);
1426 +            (!fFirst ? f : g).completeExceptionally(ex);
1427 +        }
1428 +
1429 +        checkCompletedWithWrappedException(h, ex);
1430 +        r.assertNotInvoked();
1431 +        checkCompletedNormally(fFirst ? f : g, v1);
1432 +        checkCompletedExceptionally(!fFirst ? f : g, ex);
1433 +    }}
1434 +
1435 +    /**
1436 +     * thenCombine result completes exceptionally if either source cancelled
1437 +     */
1438 +    public void testThenCombine_sourceCancelled() {
1439 +        for (ExecutionMode m : ExecutionMode.values())
1440 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1441 +        for (boolean createIncomplete : new boolean[] { true, false })
1442 +        for (boolean fFirst : new boolean[] { true, false })
1443 +        for (Integer v1 : new Integer[] { 1, null })
1444 +    {
1445 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1446 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1447 +        final SubtractFunction r = new SubtractFunction(m);
1448 +
1449 +        (fFirst ? f : g).complete(v1);
1450 +        if (!createIncomplete)
1451 +            assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
1452 +        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1453 +        if (createIncomplete) {
1454 +            checkIncomplete(h);
1455 +            assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
1456 +        }
1457 +
1458 +        checkCompletedWithWrappedCancellationException(h);
1459 +        checkCancelled(!fFirst ? f : g);
1460 +        r.assertNotInvoked();
1461 +        checkCompletedNormally(fFirst ? f : g, v1);
1462 +    }}
1463 +
1464 +    /**
1465 +     * thenCombine result completes exceptionally if action does
1466 +     */
1467 +    public void testThenCombine_actionFailed() {
1468 +        for (ExecutionMode m : ExecutionMode.values())
1469 +        for (boolean fFirst : new boolean[] { true, false })
1470 +        for (Integer v1 : new Integer[] { 1, null })
1471 +        for (Integer v2 : new Integer[] { 2, null })
1472 +    {
1473 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1474 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1475 +        final FailingBiFunction r = new FailingBiFunction(m);
1476 +        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1477 +
1478 +        if (fFirst) {
1479 +            f.complete(v1);
1480 +            g.complete(v2);
1481 +        } else {
1482 +            g.complete(v2);
1483 +            f.complete(v1);
1484 +        }
1485 +
1486 +        checkCompletedWithWrappedCFException(h);
1487 +        checkCompletedNormally(f, v1);
1488 +        checkCompletedNormally(g, v2);
1489 +    }}
1490 +
1491 +    /**
1492 +     * thenAcceptBoth result completes normally after normal
1493 +     * completion of sources
1494 +     */
1495 +    public void testThenAcceptBoth_normalCompletion() {
1496 +        for (ExecutionMode m : ExecutionMode.values())
1497 +        for (boolean createIncomplete : new boolean[] { true, false })
1498 +        for (boolean fFirst : new boolean[] { true, false })
1499 +        for (Integer v1 : new Integer[] { 1, null })
1500 +        for (Integer v2 : new Integer[] { 2, null })
1501 +    {
1502 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1503 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1504 +        final SubtractAction r = new SubtractAction(m);
1505 +
1506 +        if (fFirst) f.complete(v1); else g.complete(v2);
1507 +        if (!createIncomplete)
1508 +            if (!fFirst) f.complete(v1); else g.complete(v2);
1509 +        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1510 +        if (createIncomplete) {
1511 +            checkIncomplete(h);
1512 +            r.assertNotInvoked();
1513 +            if (!fFirst) f.complete(v1); else g.complete(v2);
1514 +        }
1515 +
1516 +        checkCompletedNormally(h, null);
1517 +        r.assertValue(subtract(v1, v2));
1518 +        checkCompletedNormally(f, v1);
1519 +        checkCompletedNormally(g, v2);
1520 +    }}
1521 +
1522 +    /**
1523 +     * thenAcceptBoth result completes exceptionally after exceptional
1524 +     * completion of either source
1525 +     */
1526 +    public void testThenAcceptBoth_exceptionalCompletion() {
1527 +        for (ExecutionMode m : ExecutionMode.values())
1528 +        for (boolean createIncomplete : new boolean[] { true, false })
1529 +        for (boolean fFirst : new boolean[] { true, false })
1530 +        for (Integer v1 : new Integer[] { 1, null })
1531 +    {
1532 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1533 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1534 +        final CFException ex = new CFException();
1535 +        final SubtractAction r = new SubtractAction(m);
1536 +
1537 +        (fFirst ? f : g).complete(v1);
1538 +        if (!createIncomplete)
1539 +            (!fFirst ? f : g).completeExceptionally(ex);
1540 +        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1541 +        if (createIncomplete) {
1542 +            checkIncomplete(h);
1543 +            (!fFirst ? f : g).completeExceptionally(ex);
1544 +        }
1545 +
1546 +        checkCompletedWithWrappedException(h, ex);
1547 +        r.assertNotInvoked();
1548 +        checkCompletedNormally(fFirst ? f : g, v1);
1549 +        checkCompletedExceptionally(!fFirst ? f : g, ex);
1550 +    }}
1551 +
1552 +    /**
1553 +     * thenAcceptBoth result completes exceptionally if either source cancelled
1554 +     */
1555 +    public void testThenAcceptBoth_sourceCancelled() {
1556 +        for (ExecutionMode m : ExecutionMode.values())
1557 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
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 SubtractAction r = new SubtractAction(m);
1565 +
1566 +        (fFirst ? f : g).complete(v1);
1567 +        if (!createIncomplete)
1568 +            assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
1569 +        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1570 +        if (createIncomplete) {
1571 +            checkIncomplete(h);
1572 +            assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
1573 +        }
1574 +
1575 +        checkCompletedWithWrappedCancellationException(h);
1576 +        checkCancelled(!fFirst ? f : g);
1577 +        r.assertNotInvoked();
1578 +        checkCompletedNormally(fFirst ? f : g, v1);
1579 +    }}
1580 +
1581 +    /**
1582 +     * thenAcceptBoth result completes exceptionally if action does
1583 +     */
1584 +    public void testThenAcceptBoth_actionFailed() {
1585 +        for (ExecutionMode m : ExecutionMode.values())
1586 +        for (boolean fFirst : new boolean[] { true, false })
1587 +        for (Integer v1 : new Integer[] { 1, null })
1588 +        for (Integer v2 : new Integer[] { 2, null })
1589 +    {
1590 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1591 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1592 +        final FailingBiConsumer r = new FailingBiConsumer(m);
1593 +        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1594 +
1595 +        if (fFirst) {
1596 +            f.complete(v1);
1597 +            g.complete(v2);
1598 +        } else {
1599 +            g.complete(v2);
1600 +            f.complete(v1);
1601 +        }
1602 +
1603 +        checkCompletedWithWrappedCFException(h);
1604 +        checkCompletedNormally(f, v1);
1605 +        checkCompletedNormally(g, v2);
1606 +    }}
1607 +
1608 +    /**
1609 +     * runAfterBoth result completes normally after normal
1610 +     * completion of sources
1611 +     */
1612 +    public void testRunAfterBoth_normalCompletion() {
1613 +        for (ExecutionMode m : ExecutionMode.values())
1614 +        for (boolean createIncomplete : new boolean[] { true, false })
1615 +        for (boolean fFirst : new boolean[] { true, false })
1616 +        for (Integer v1 : new Integer[] { 1, null })
1617 +        for (Integer v2 : new Integer[] { 2, null })
1618 +    {
1619 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1620 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1621 +        final Noop r = new Noop(m);
1622 +
1623 +        if (fFirst) f.complete(v1); else g.complete(v2);
1624 +        if (!createIncomplete)
1625 +            if (!fFirst) f.complete(v1); else g.complete(v2);
1626 +        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1627 +        if (createIncomplete) {
1628 +            checkIncomplete(h);
1629 +            r.assertNotInvoked();
1630 +            if (!fFirst) f.complete(v1); else g.complete(v2);
1631 +        }
1632 +
1633 +        checkCompletedNormally(h, null);
1634 +        r.assertInvoked();
1635 +        checkCompletedNormally(f, v1);
1636 +        checkCompletedNormally(g, v2);
1637 +    }}
1638 +
1639 +    /**
1640 +     * runAfterBoth result completes exceptionally after exceptional
1641 +     * completion of either source
1642 +     */
1643 +    public void testRunAfterBoth_exceptionalCompletion() {
1644 +        for (ExecutionMode m : ExecutionMode.values())
1645 +        for (boolean createIncomplete : new boolean[] { true, false })
1646 +        for (boolean fFirst : new boolean[] { true, false })
1647 +        for (Integer v1 : new Integer[] { 1, null })
1648 +    {
1649 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1650 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1651 +        final CFException ex = new CFException();
1652 +        final Noop r = new Noop(m);
1653 +
1654 +        (fFirst ? f : g).complete(v1);
1655 +        if (!createIncomplete)
1656 +            (!fFirst ? f : g).completeExceptionally(ex);
1657 +        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1658 +        if (createIncomplete) {
1659 +            checkIncomplete(h);
1660 +            (!fFirst ? f : g).completeExceptionally(ex);
1661 +        }
1662 +
1663 +        checkCompletedWithWrappedException(h, ex);
1664 +        r.assertNotInvoked();
1665 +        checkCompletedNormally(fFirst ? f : g, v1);
1666 +        checkCompletedExceptionally(!fFirst ? f : g, ex);
1667 +    }}
1668 +
1669 +    /**
1670 +     * runAfterBoth result completes exceptionally if either source cancelled
1671 +     */
1672 +    public void testRunAfterBoth_sourceCancelled() {
1673 +        for (ExecutionMode m : ExecutionMode.values())
1674 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
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 Noop r = new Noop(m);
1682 +
1683 +
1684 +        (fFirst ? f : g).complete(v1);
1685 +        if (!createIncomplete)
1686 +            assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
1687 +        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1688 +        if (createIncomplete) {
1689 +            checkIncomplete(h);
1690 +            assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
1691 +        }
1692 +
1693 +        checkCompletedWithWrappedCancellationException(h);
1694 +        checkCancelled(!fFirst ? f : g);
1695 +        r.assertNotInvoked();
1696 +        checkCompletedNormally(fFirst ? f : g, v1);
1697 +    }}
1698 +
1699 +    /**
1700 +     * runAfterBoth result completes exceptionally if action does
1701 +     */
1702 +    public void testRunAfterBoth_actionFailed() {
1703 +        for (ExecutionMode m : ExecutionMode.values())
1704 +        for (boolean fFirst : new boolean[] { true, false })
1705 +        for (Integer v1 : new Integer[] { 1, null })
1706 +        for (Integer v2 : new Integer[] { 2, null })
1707 +    {
1708 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1709 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1710 +        final FailingRunnable r1 = new FailingRunnable(m);
1711 +        final FailingRunnable r2 = new FailingRunnable(m);
1712 +
1713 +        CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
1714 +        if (fFirst) {
1715 +            f.complete(v1);
1716 +            g.complete(v2);
1717 +        } else {
1718 +            g.complete(v2);
1719 +            f.complete(v1);
1720 +        }
1721 +        CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
1722 +
1723 +        checkCompletedWithWrappedCFException(h1);
1724 +        checkCompletedWithWrappedCFException(h2);
1725 +        checkCompletedNormally(f, v1);
1726 +        checkCompletedNormally(g, v2);
1727 +    }}
1728 +
1729 +    /**
1730 +     * applyToEither result completes normally after normal completion
1731 +     * of either source
1732 +     */
1733 +    public void testApplyToEither_normalCompletion() {
1734 +        for (ExecutionMode m : ExecutionMode.values())
1735 +        for (Integer v1 : new Integer[] { 1, null })
1736 +        for (Integer v2 : new Integer[] { 2, null })
1737 +    {
1738 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1739 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1740 +        final IncFunction[] rs = new IncFunction[6];
1741 +        for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1742 +
1743 +        final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
1744 +        final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
1745 +        checkIncomplete(h0);
1746 +        checkIncomplete(h1);
1747 +        rs[0].assertNotInvoked();
1748 +        rs[1].assertNotInvoked();
1749 +        f.complete(v1);
1750 +        checkCompletedNormally(h0, inc(v1));
1751 +        checkCompletedNormally(h1, inc(v1));
1752 +        final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
1753 +        final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
1754 +        checkCompletedNormally(h2, inc(v1));
1755 +        checkCompletedNormally(h3, inc(v1));
1756 +        g.complete(v2);
1757 +
1758 +        // unspecified behavior - both source completions available
1759 +        final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
1760 +        final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
1761 +        rs[4].assertValue(h4.join());
1762 +        rs[5].assertValue(h5.join());
1763 +        assertTrue(Objects.equals(inc(v1), h4.join()) ||
1764 +                   Objects.equals(inc(v2), h4.join()));
1765 +        assertTrue(Objects.equals(inc(v1), h5.join()) ||
1766 +                   Objects.equals(inc(v2), h5.join()));
1767 +
1768 +        checkCompletedNormally(f, v1);
1769 +        checkCompletedNormally(g, v2);
1770 +        checkCompletedNormally(h0, inc(v1));
1771 +        checkCompletedNormally(h1, inc(v1));
1772 +        checkCompletedNormally(h2, inc(v1));
1773 +        checkCompletedNormally(h3, inc(v1));
1774 +        for (int i = 0; i < 4; i++) rs[i].assertValue(inc(v1));
1775 +    }}
1776 +
1777 +    /**
1778 +     * applyToEither result completes exceptionally after exceptional
1779 +     * completion of either source
1780 +     */
1781 +    public void testApplyToEither_exceptionalCompletion() {
1782 +        for (ExecutionMode m : ExecutionMode.values())
1783 +        for (Integer v1 : new Integer[] { 1, null })
1784 +    {
1785 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1786 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1787 +        final CFException ex = new CFException();
1788 +        final IncFunction[] rs = new IncFunction[6];
1789 +        for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1790 +
1791 +        final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
1792 +        final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
1793 +        checkIncomplete(h0);
1794 +        checkIncomplete(h1);
1795 +        rs[0].assertNotInvoked();
1796 +        rs[1].assertNotInvoked();
1797 +        f.completeExceptionally(ex);
1798 +        checkCompletedWithWrappedException(h0, ex);
1799 +        checkCompletedWithWrappedException(h1, ex);
1800 +        final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
1801 +        final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
1802 +        checkCompletedWithWrappedException(h2, ex);
1803 +        checkCompletedWithWrappedException(h3, ex);
1804 +        g.complete(v1);
1805 +
1806 +        // unspecified behavior - both source completions available
1807 +        final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
1808 +        final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
1809 +        try {
1810 +            assertEquals(inc(v1), h4.join());
1811 +            rs[4].assertValue(inc(v1));
1812 +        } catch (CompletionException ok) {
1813 +            checkCompletedWithWrappedException(h4, ex);
1814 +            rs[4].assertNotInvoked();
1815 +        }
1816 +        try {
1817 +            assertEquals(inc(v1), h5.join());
1818 +            rs[5].assertValue(inc(v1));
1819 +        } catch (CompletionException ok) {
1820 +            checkCompletedWithWrappedException(h5, ex);
1821 +            rs[5].assertNotInvoked();
1822 +        }
1823 +
1824 +        checkCompletedExceptionally(f, ex);
1825 +        checkCompletedNormally(g, v1);
1826 +        checkCompletedWithWrappedException(h0, ex);
1827 +        checkCompletedWithWrappedException(h1, ex);
1828 +        checkCompletedWithWrappedException(h2, ex);
1829 +        checkCompletedWithWrappedException(h3, ex);
1830 +        checkCompletedWithWrappedException(h4, ex);
1831 +        for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
1832 +    }}
1833 +
1834 +    public void testApplyToEither_exceptionalCompletion2() {
1835 +        for (ExecutionMode m : ExecutionMode.values())
1836 +        for (boolean fFirst : new boolean[] { true, false })
1837 +        for (Integer v1 : new Integer[] { 1, null })
1838 +    {
1839 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1840 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1841 +        final CFException ex = new CFException();
1842 +        final IncFunction[] rs = new IncFunction[6];
1843 +        for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1844 +
1845 +        final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
1846 +        final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
1847 +        if (fFirst) {
1848 +            f.complete(v1);
1849 +            g.completeExceptionally(ex);
1850 +        } else {
1851 +            g.completeExceptionally(ex);
1852 +            f.complete(v1);
1853 +        }
1854 +        final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
1855 +        final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
1856 +
1857 +        // unspecified behavior - both source completions available
1858 +        try {
1859 +            assertEquals(inc(v1), h0.join());
1860 +            rs[0].assertValue(inc(v1));
1861 +        } catch (CompletionException ok) {
1862 +            checkCompletedWithWrappedException(h0, ex);
1863 +            rs[0].assertNotInvoked();
1864 +        }
1865 +        try {
1866 +            assertEquals(inc(v1), h1.join());
1867 +            rs[1].assertValue(inc(v1));
1868 +        } catch (CompletionException ok) {
1869 +            checkCompletedWithWrappedException(h1, ex);
1870 +            rs[1].assertNotInvoked();
1871 +        }
1872 +        try {
1873 +            assertEquals(inc(v1), h2.join());
1874 +            rs[2].assertValue(inc(v1));
1875 +        } catch (CompletionException ok) {
1876 +            checkCompletedWithWrappedException(h2, ex);
1877 +            rs[2].assertNotInvoked();
1878 +        }
1879 +        try {
1880 +            assertEquals(inc(v1), h3.join());
1881 +            rs[3].assertValue(inc(v1));
1882 +        } catch (CompletionException ok) {
1883 +            checkCompletedWithWrappedException(h3, ex);
1884 +            rs[3].assertNotInvoked();
1885 +        }
1886 +
1887 +        checkCompletedNormally(f, v1);
1888 +        checkCompletedExceptionally(g, ex);
1889 +    }}
1890 +
1891 +    /**
1892 +     * applyToEither result completes exceptionally if either source cancelled
1893 +     */
1894 +    public void testApplyToEither_sourceCancelled() {
1895 +        for (ExecutionMode m : ExecutionMode.values())
1896 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1897 +        for (Integer v1 : new Integer[] { 1, null })
1898 +    {
1899 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1900 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1901 +        final IncFunction[] rs = new IncFunction[6];
1902 +        for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1903 +
1904 +        final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
1905 +        final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
1906 +        checkIncomplete(h0);
1907 +        checkIncomplete(h1);
1908 +        rs[0].assertNotInvoked();
1909 +        rs[1].assertNotInvoked();
1910 +        f.cancel(mayInterruptIfRunning);
1911 +        checkCompletedWithWrappedCancellationException(h0);
1912 +        checkCompletedWithWrappedCancellationException(h1);
1913 +        final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
1914 +        final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
1915 +        checkCompletedWithWrappedCancellationException(h2);
1916 +        checkCompletedWithWrappedCancellationException(h3);
1917 +        g.complete(v1);
1918 +
1919 +        // unspecified behavior - both source completions available
1920 +        final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
1921 +        final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
1922 +        try {
1923 +            assertEquals(inc(v1), h4.join());
1924 +            rs[4].assertValue(inc(v1));
1925 +        } catch (CompletionException ok) {
1926 +            checkCompletedWithWrappedCancellationException(h4);
1927 +            rs[4].assertNotInvoked();
1928 +        }
1929 +        try {
1930 +            assertEquals(inc(v1), h5.join());
1931 +            rs[5].assertValue(inc(v1));
1932 +        } catch (CompletionException ok) {
1933 +            checkCompletedWithWrappedCancellationException(h5);
1934 +            rs[5].assertNotInvoked();
1935 +        }
1936 +
1937 +        checkCancelled(f);
1938 +        checkCompletedNormally(g, v1);
1939 +        checkCompletedWithWrappedCancellationException(h0);
1940 +        checkCompletedWithWrappedCancellationException(h1);
1941 +        checkCompletedWithWrappedCancellationException(h2);
1942 +        checkCompletedWithWrappedCancellationException(h3);
1943 +        for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
1944 +    }}
1945 +
1946 +    public void testApplyToEither_sourceCancelled2() {
1947 +        for (ExecutionMode m : ExecutionMode.values())
1948 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1949 +        for (boolean fFirst : new boolean[] { true, false })
1950 +        for (Integer v1 : new Integer[] { 1, null })
1951 +    {
1952 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1953 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1954 +        final IncFunction[] rs = new IncFunction[6];
1955 +        for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1956 +
1957 +        final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
1958 +        final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
1959 +        if (fFirst) {
1960 +            f.complete(v1);
1961 +            g.cancel(mayInterruptIfRunning);
1962 +        } else {
1963 +            g.cancel(mayInterruptIfRunning);
1964 +            f.complete(v1);
1965 +        }
1966 +        final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
1967 +        final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
1968 +
1969 +        // unspecified behavior - both source completions available
1970 +        try {
1971 +            assertEquals(inc(v1), h0.join());
1972 +            rs[0].assertValue(inc(v1));
1973 +        } catch (CompletionException ok) {
1974 +            checkCompletedWithWrappedCancellationException(h0);
1975 +            rs[0].assertNotInvoked();
1976 +        }
1977 +        try {
1978 +            assertEquals(inc(v1), h1.join());
1979 +            rs[1].assertValue(inc(v1));
1980 +        } catch (CompletionException ok) {
1981 +            checkCompletedWithWrappedCancellationException(h1);
1982 +            rs[1].assertNotInvoked();
1983 +        }
1984 +        try {
1985 +            assertEquals(inc(v1), h2.join());
1986 +            rs[2].assertValue(inc(v1));
1987 +        } catch (CompletionException ok) {
1988 +            checkCompletedWithWrappedCancellationException(h2);
1989 +            rs[2].assertNotInvoked();
1990 +        }
1991 +        try {
1992 +            assertEquals(inc(v1), h3.join());
1993 +            rs[3].assertValue(inc(v1));
1994 +        } catch (CompletionException ok) {
1995 +            checkCompletedWithWrappedCancellationException(h3);
1996 +            rs[3].assertNotInvoked();
1997 +        }
1998 +
1999 +        checkCompletedNormally(f, v1);
2000 +        checkCancelled(g);
2001 +    }}
2002 +
2003 +    /**
2004 +     * applyToEither result completes exceptionally if action does
2005 +     */
2006 +    public void testApplyToEither_actionFailed() {
2007 +        for (ExecutionMode m : ExecutionMode.values())
2008 +        for (Integer v1 : new Integer[] { 1, null })
2009 +        for (Integer v2 : new Integer[] { 2, null })
2010 +    {
2011 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2012 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2013 +        final FailingFunction[] rs = new FailingFunction[6];
2014 +        for (int i = 0; i < rs.length; i++) rs[i] = new FailingFunction(m);
2015 +
2016 +        final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2017 +        final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2018 +        f.complete(v1);
2019 +        final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2020 +        final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2021 +        checkCompletedWithWrappedCFException(h0);
2022 +        checkCompletedWithWrappedCFException(h1);
2023 +        checkCompletedWithWrappedCFException(h2);
2024 +        checkCompletedWithWrappedCFException(h3);
2025 +        for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2026 +
2027 +        g.complete(v2);
2028 +
2029 +        // unspecified behavior - both source completions available
2030 +        final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2031 +        final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2032 +
2033 +        checkCompletedWithWrappedCFException(h4);
2034 +        assertTrue(Objects.equals(v1, rs[4].value) ||
2035 +                   Objects.equals(v2, rs[4].value));
2036 +        checkCompletedWithWrappedCFException(h5);
2037 +        assertTrue(Objects.equals(v1, rs[5].value) ||
2038 +                   Objects.equals(v2, rs[5].value));
2039 +
2040 +        checkCompletedNormally(f, v1);
2041 +        checkCompletedNormally(g, v2);
2042 +    }}
2043 +
2044 +    /**
2045 +     * acceptEither result completes normally after normal completion
2046 +     * of either source
2047 +     */
2048 +    public void testAcceptEither_normalCompletion() {
2049 +        for (ExecutionMode m : ExecutionMode.values())
2050 +        for (Integer v1 : new Integer[] { 1, null })
2051 +        for (Integer v2 : new Integer[] { 2, null })
2052 +    {
2053 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2054 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2055 +        final NoopConsumer[] rs = new NoopConsumer[6];
2056 +        for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2057 +
2058 +        final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2059 +        final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2060 +        checkIncomplete(h0);
2061 +        checkIncomplete(h1);
2062 +        rs[0].assertNotInvoked();
2063 +        rs[1].assertNotInvoked();
2064 +        f.complete(v1);
2065 +        checkCompletedNormally(h0, null);
2066 +        checkCompletedNormally(h1, null);
2067 +        rs[0].assertValue(v1);
2068 +        rs[1].assertValue(v1);
2069 +        final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2070 +        final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2071 +        checkCompletedNormally(h2, null);
2072 +        checkCompletedNormally(h3, null);
2073 +        rs[2].assertValue(v1);
2074 +        rs[3].assertValue(v1);
2075 +        g.complete(v2);
2076 +
2077 +        // unspecified behavior - both source completions available
2078 +        final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2079 +        final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2080 +        checkCompletedNormally(h4, null);
2081 +        checkCompletedNormally(h5, null);
2082 +        assertTrue(Objects.equals(v1, rs[4].value) ||
2083 +                   Objects.equals(v2, rs[4].value));
2084 +        assertTrue(Objects.equals(v1, rs[5].value) ||
2085 +                   Objects.equals(v2, rs[5].value));
2086 +
2087 +        checkCompletedNormally(f, v1);
2088 +        checkCompletedNormally(g, v2);
2089 +        checkCompletedNormally(h0, null);
2090 +        checkCompletedNormally(h1, null);
2091 +        checkCompletedNormally(h2, null);
2092 +        checkCompletedNormally(h3, null);
2093 +        for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2094 +    }}
2095 +
2096 +    /**
2097 +     * acceptEither result completes exceptionally after exceptional
2098 +     * completion of either source
2099 +     */
2100 +    public void testAcceptEither_exceptionalCompletion() {
2101 +        for (ExecutionMode m : ExecutionMode.values())
2102 +        for (Integer v1 : new Integer[] { 1, null })
2103 +    {
2104 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2105 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2106 +        final CFException ex = new CFException();
2107 +        final NoopConsumer[] rs = new NoopConsumer[6];
2108 +        for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2109 +
2110 +        final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2111 +        final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2112 +        checkIncomplete(h0);
2113 +        checkIncomplete(h1);
2114 +        rs[0].assertNotInvoked();
2115 +        rs[1].assertNotInvoked();
2116 +        f.completeExceptionally(ex);
2117 +        checkCompletedWithWrappedException(h0, ex);
2118 +        checkCompletedWithWrappedException(h1, ex);
2119 +        final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2120 +        final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2121 +        checkCompletedWithWrappedException(h2, ex);
2122 +        checkCompletedWithWrappedException(h3, ex);
2123 +
2124 +        g.complete(v1);
2125 +
2126 +        // unspecified behavior - both source completions available
2127 +        final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2128 +        final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2129 +        try {
2130 +            assertNull(h4.join());
2131 +            rs[4].assertValue(v1);
2132 +        } catch (CompletionException ok) {
2133 +            checkCompletedWithWrappedException(h4, ex);
2134 +            rs[4].assertNotInvoked();
2135 +        }
2136 +        try {
2137 +            assertNull(h5.join());
2138 +            rs[5].assertValue(v1);
2139 +        } catch (CompletionException ok) {
2140 +            checkCompletedWithWrappedException(h5, ex);
2141 +            rs[5].assertNotInvoked();
2142 +        }
2143 +
2144 +        checkCompletedExceptionally(f, ex);
2145 +        checkCompletedNormally(g, v1);
2146 +        checkCompletedWithWrappedException(h0, ex);
2147 +        checkCompletedWithWrappedException(h1, ex);
2148 +        checkCompletedWithWrappedException(h2, ex);
2149 +        checkCompletedWithWrappedException(h3, ex);
2150 +        checkCompletedWithWrappedException(h4, ex);
2151 +        for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2152 +    }}
2153 +
2154 +    public void testAcceptEither_exceptionalCompletion2() {
2155 +        for (ExecutionMode m : ExecutionMode.values())
2156 +        for (boolean fFirst : new boolean[] { true, false })
2157 +        for (Integer v1 : new Integer[] { 1, null })
2158 +    {
2159 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2160 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2161 +        final CFException ex = new CFException();
2162 +        final NoopConsumer[] rs = new NoopConsumer[6];
2163 +        for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2164 +
2165 +        final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2166 +        final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2167 +        if (fFirst) {
2168 +            f.complete(v1);
2169 +            g.completeExceptionally(ex);
2170 +        } else {
2171 +            g.completeExceptionally(ex);
2172 +            f.complete(v1);
2173 +        }
2174 +        final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2175 +        final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2176 +
2177 +        // unspecified behavior - both source completions available
2178 +        try {
2179 +            assertEquals(null, h0.join());
2180 +            rs[0].assertValue(v1);
2181 +        } catch (CompletionException ok) {
2182 +            checkCompletedWithWrappedException(h0, ex);
2183 +            rs[0].assertNotInvoked();
2184 +        }
2185 +        try {
2186 +            assertEquals(null, h1.join());
2187 +            rs[1].assertValue(v1);
2188 +        } catch (CompletionException ok) {
2189 +            checkCompletedWithWrappedException(h1, ex);
2190 +            rs[1].assertNotInvoked();
2191 +        }
2192 +        try {
2193 +            assertEquals(null, h2.join());
2194 +            rs[2].assertValue(v1);
2195 +        } catch (CompletionException ok) {
2196 +            checkCompletedWithWrappedException(h2, ex);
2197 +            rs[2].assertNotInvoked();
2198 +        }
2199 +        try {
2200 +            assertEquals(null, h3.join());
2201 +            rs[3].assertValue(v1);
2202 +        } catch (CompletionException ok) {
2203 +            checkCompletedWithWrappedException(h3, ex);
2204 +            rs[3].assertNotInvoked();
2205 +        }
2206 +
2207 +        checkCompletedNormally(f, v1);
2208 +        checkCompletedExceptionally(g, ex);
2209 +    }}
2210 +
2211 +    /**
2212 +     * acceptEither result completes exceptionally if either source cancelled
2213 +     */
2214 +    public void testAcceptEither_sourceCancelled() {
2215 +        for (ExecutionMode m : ExecutionMode.values())
2216 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2217 +        for (Integer v1 : new Integer[] { 1, null })
2218 +    {
2219 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2220 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2221 +        final NoopConsumer[] rs = new NoopConsumer[6];
2222 +        for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2223 +
2224 +        final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2225 +        final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2226 +        checkIncomplete(h0);
2227 +        checkIncomplete(h1);
2228 +        rs[0].assertNotInvoked();
2229 +        rs[1].assertNotInvoked();
2230 +        f.cancel(mayInterruptIfRunning);
2231 +        checkCompletedWithWrappedCancellationException(h0);
2232 +        checkCompletedWithWrappedCancellationException(h1);
2233 +        final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2234 +        final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2235 +        checkCompletedWithWrappedCancellationException(h2);
2236 +        checkCompletedWithWrappedCancellationException(h3);
2237 +
2238 +        g.complete(v1);
2239 +
2240 +        // unspecified behavior - both source completions available
2241 +        final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2242 +        final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2243 +        try {
2244 +            assertNull(h4.join());
2245 +            rs[4].assertValue(v1);
2246 +        } catch (CompletionException ok) {
2247 +            checkCompletedWithWrappedCancellationException(h4);
2248 +            rs[4].assertNotInvoked();
2249 +        }
2250 +        try {
2251 +            assertNull(h5.join());
2252 +            rs[5].assertValue(v1);
2253 +        } catch (CompletionException ok) {
2254 +            checkCompletedWithWrappedCancellationException(h5);
2255 +            rs[5].assertNotInvoked();
2256 +        }
2257 +
2258 +        checkCancelled(f);
2259 +        checkCompletedNormally(g, v1);
2260 +        checkCompletedWithWrappedCancellationException(h0);
2261 +        checkCompletedWithWrappedCancellationException(h1);
2262 +        checkCompletedWithWrappedCancellationException(h2);
2263 +        checkCompletedWithWrappedCancellationException(h3);
2264 +        for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2265 +    }}
2266 +
2267 +    /**
2268 +     * acceptEither result completes exceptionally if action does
2269 +     */
2270 +    public void testAcceptEither_actionFailed() {
2271 +        for (ExecutionMode m : ExecutionMode.values())
2272 +        for (Integer v1 : new Integer[] { 1, null })
2273 +        for (Integer v2 : new Integer[] { 2, null })
2274 +    {
2275 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2276 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2277 +        final FailingConsumer[] rs = new FailingConsumer[6];
2278 +        for (int i = 0; i < rs.length; i++) rs[i] = new FailingConsumer(m);
2279 +
2280 +        final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2281 +        final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2282 +        f.complete(v1);
2283 +        final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2284 +        final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2285 +        checkCompletedWithWrappedCFException(h0);
2286 +        checkCompletedWithWrappedCFException(h1);
2287 +        checkCompletedWithWrappedCFException(h2);
2288 +        checkCompletedWithWrappedCFException(h3);
2289 +        for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2290 +
2291 +        g.complete(v2);
2292 +
2293 +        // unspecified behavior - both source completions available
2294 +        final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2295 +        final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2296 +
2297 +        checkCompletedWithWrappedCFException(h4);
2298 +        assertTrue(Objects.equals(v1, rs[4].value) ||
2299 +                   Objects.equals(v2, rs[4].value));
2300 +        checkCompletedWithWrappedCFException(h5);
2301 +        assertTrue(Objects.equals(v1, rs[5].value) ||
2302 +                   Objects.equals(v2, rs[5].value));
2303 +
2304 +        checkCompletedNormally(f, v1);
2305 +        checkCompletedNormally(g, v2);
2306 +    }}
2307 +
2308 +    /**
2309 +     * runAfterEither result completes normally after normal completion
2310 +     * of either source
2311 +     */
2312 +    public void testRunAfterEither_normalCompletion() {
2313 +        for (ExecutionMode m : ExecutionMode.values())
2314 +        for (Integer v1 : new Integer[] { 1, null })
2315 +        for (Integer v2 : new Integer[] { 2, null })
2316 +    {
2317 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2318 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2319 +        final Noop[] rs = new Noop[6];
2320 +        for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2321 +
2322 +        final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2323 +        final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2324 +        checkIncomplete(h0);
2325 +        checkIncomplete(h1);
2326 +        rs[0].assertNotInvoked();
2327 +        rs[1].assertNotInvoked();
2328 +        f.complete(v1);
2329 +        checkCompletedNormally(h0, null);
2330 +        checkCompletedNormally(h1, null);
2331 +        rs[0].assertInvoked();
2332 +        rs[1].assertInvoked();
2333 +        final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2334 +        final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2335 +        checkCompletedNormally(h2, null);
2336 +        checkCompletedNormally(h3, null);
2337 +        rs[2].assertInvoked();
2338 +        rs[3].assertInvoked();
2339 +
2340 +        g.complete(v2);
2341 +
2342 +        final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2343 +        final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2344 +
2345 +        checkCompletedNormally(f, v1);
2346 +        checkCompletedNormally(g, v2);
2347 +        checkCompletedNormally(h0, null);
2348 +        checkCompletedNormally(h1, null);
2349 +        checkCompletedNormally(h2, null);
2350 +        checkCompletedNormally(h3, null);
2351 +        checkCompletedNormally(h4, null);
2352 +        checkCompletedNormally(h5, null);
2353 +        for (int i = 0; i < 6; i++) rs[i].assertInvoked();
2354 +    }}
2355 +
2356 +    /**
2357 +     * runAfterEither result completes exceptionally after exceptional
2358 +     * completion of either source
2359 +     */
2360 +    public void testRunAfterEither_exceptionalCompletion() {
2361 +        for (ExecutionMode m : ExecutionMode.values())
2362 +        for (Integer v1 : new Integer[] { 1, null })
2363 +    {
2364 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2365 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2366 +        final CFException ex = new CFException();
2367 +        final Noop[] rs = new Noop[6];
2368 +        for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2369 +
2370 +        final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2371 +        final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2372 +        checkIncomplete(h0);
2373 +        checkIncomplete(h1);
2374 +        rs[0].assertNotInvoked();
2375 +        rs[1].assertNotInvoked();
2376 +        f.completeExceptionally(ex);
2377 +        checkCompletedWithWrappedException(h0, ex);
2378 +        checkCompletedWithWrappedException(h1, ex);
2379 +        final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2380 +        final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2381 +        checkCompletedWithWrappedException(h2, ex);
2382 +        checkCompletedWithWrappedException(h3, ex);
2383 +
2384 +        g.complete(v1);
2385 +
2386 +        // unspecified behavior - both source completions available
2387 +        final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2388 +        final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2389 +        try {
2390 +            assertNull(h4.join());
2391 +            rs[4].assertInvoked();
2392 +        } catch (CompletionException ok) {
2393 +            checkCompletedWithWrappedException(h4, ex);
2394 +            rs[4].assertNotInvoked();
2395 +        }
2396 +        try {
2397 +            assertNull(h5.join());
2398 +            rs[5].assertInvoked();
2399 +        } catch (CompletionException ok) {
2400 +            checkCompletedWithWrappedException(h5, ex);
2401 +            rs[5].assertNotInvoked();
2402 +        }
2403 +
2404 +        checkCompletedExceptionally(f, ex);
2405 +        checkCompletedNormally(g, v1);
2406 +        checkCompletedWithWrappedException(h0, ex);
2407 +        checkCompletedWithWrappedException(h1, ex);
2408 +        checkCompletedWithWrappedException(h2, ex);
2409 +        checkCompletedWithWrappedException(h3, ex);
2410 +        checkCompletedWithWrappedException(h4, ex);
2411 +        for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2412 +    }}
2413 +
2414 +    public void testRunAfterEither_exceptionalCompletion2() {
2415 +        for (ExecutionMode m : ExecutionMode.values())
2416 +        for (boolean fFirst : new boolean[] { true, false })
2417 +        for (Integer v1 : new Integer[] { 1, null })
2418 +    {
2419 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2420 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2421 +        final CFException ex = new CFException();
2422 +        final Noop[] rs = new Noop[6];
2423 +        for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2424 +
2425 +        final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2426 +        final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2427 +        if (fFirst) {
2428 +            f.complete(v1);
2429 +            g.completeExceptionally(ex);
2430 +        } else {
2431 +            g.completeExceptionally(ex);
2432 +            f.complete(v1);
2433 +        }
2434 +        final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2435 +        final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2436 +
2437 +        // unspecified behavior - both source completions available
2438 +        try {
2439 +            assertEquals(null, h0.join());
2440 +            rs[0].assertInvoked();
2441 +        } catch (CompletionException ok) {
2442 +            checkCompletedWithWrappedException(h0, ex);
2443 +            rs[0].assertNotInvoked();
2444 +        }
2445 +        try {
2446 +            assertEquals(null, h1.join());
2447 +            rs[1].assertInvoked();
2448 +        } catch (CompletionException ok) {
2449 +            checkCompletedWithWrappedException(h1, ex);
2450 +            rs[1].assertNotInvoked();
2451 +        }
2452 +        try {
2453 +            assertEquals(null, h2.join());
2454 +            rs[2].assertInvoked();
2455 +        } catch (CompletionException ok) {
2456 +            checkCompletedWithWrappedException(h2, ex);
2457 +            rs[2].assertNotInvoked();
2458 +        }
2459 +        try {
2460 +            assertEquals(null, h3.join());
2461 +            rs[3].assertInvoked();
2462 +        } catch (CompletionException ok) {
2463 +            checkCompletedWithWrappedException(h3, ex);
2464 +            rs[3].assertNotInvoked();
2465 +        }
2466 +
2467 +        checkCompletedNormally(f, v1);
2468 +        checkCompletedExceptionally(g, ex);
2469 +    }}
2470 +
2471 +    /**
2472 +     * runAfterEither result completes exceptionally if either source cancelled
2473 +     */
2474 +    public void testRunAfterEither_sourceCancelled() {
2475 +        for (ExecutionMode m : ExecutionMode.values())
2476 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2477 +        for (Integer v1 : new Integer[] { 1, null })
2478 +    {
2479 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2480 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2481 +        final Noop[] rs = new Noop[6];
2482 +        for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2483 +
2484 +        final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2485 +        final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2486 +        checkIncomplete(h0);
2487 +        checkIncomplete(h1);
2488 +        rs[0].assertNotInvoked();
2489 +        rs[1].assertNotInvoked();
2490 +        f.cancel(mayInterruptIfRunning);
2491 +        checkCompletedWithWrappedCancellationException(h0);
2492 +        checkCompletedWithWrappedCancellationException(h1);
2493 +        final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2494 +        final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2495 +        checkCompletedWithWrappedCancellationException(h2);
2496 +        checkCompletedWithWrappedCancellationException(h3);
2497 +
2498 +        g.complete(v1);
2499 +
2500 +        // unspecified behavior - both source completions available
2501 +        final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2502 +        final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2503 +        try {
2504 +            assertNull(h4.join());
2505 +            rs[4].assertInvoked();
2506 +        } catch (CompletionException ok) {
2507 +            checkCompletedWithWrappedCancellationException(h4);
2508 +            rs[4].assertNotInvoked();
2509 +        }
2510 +        try {
2511 +            assertNull(h5.join());
2512 +            rs[5].assertInvoked();
2513 +        } catch (CompletionException ok) {
2514 +            checkCompletedWithWrappedCancellationException(h5);
2515 +            rs[5].assertNotInvoked();
2516 +        }
2517 +
2518 +        checkCancelled(f);
2519 +        checkCompletedNormally(g, v1);
2520 +        checkCompletedWithWrappedCancellationException(h0);
2521 +        checkCompletedWithWrappedCancellationException(h1);
2522 +        checkCompletedWithWrappedCancellationException(h2);
2523 +        checkCompletedWithWrappedCancellationException(h3);
2524 +        for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2525 +    }}
2526 +
2527 +    /**
2528 +     * runAfterEither result completes exceptionally if action does
2529 +     */
2530 +    public void testRunAfterEither_actionFailed() {
2531 +        for (ExecutionMode m : ExecutionMode.values())
2532 +        for (Integer v1 : new Integer[] { 1, null })
2533 +        for (Integer v2 : new Integer[] { 2, null })
2534 +    {
2535 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2536 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2537 +        final FailingRunnable[] rs = new FailingRunnable[6];
2538 +        for (int i = 0; i < rs.length; i++) rs[i] = new FailingRunnable(m);
2539 +
2540 +        final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2541 +        final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2542 +        f.complete(v1);
2543 +        final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2544 +        final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2545 +        checkCompletedWithWrappedCFException(h0);
2546 +        checkCompletedWithWrappedCFException(h1);
2547 +        checkCompletedWithWrappedCFException(h2);
2548 +        checkCompletedWithWrappedCFException(h3);
2549 +        for (int i = 0; i < 4; i++) rs[i].assertInvoked();
2550 +        g.complete(v2);
2551 +        final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2552 +        final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2553 +        checkCompletedWithWrappedCFException(h4);
2554 +        checkCompletedWithWrappedCFException(h5);
2555 +
2556 +        checkCompletedNormally(f, v1);
2557 +        checkCompletedNormally(g, v2);
2558 +        for (int i = 0; i < 6; i++) rs[i].assertInvoked();
2559 +    }}
2560 +
2561 +    /**
2562 +     * thenCompose result completes normally after normal completion of source
2563 +     */
2564 +    public void testThenCompose_normalCompletion() {
2565 +        for (ExecutionMode m : ExecutionMode.values())
2566 +        for (boolean createIncomplete : new boolean[] { true, false })
2567 +        for (Integer v1 : new Integer[] { 1, null })
2568 +    {
2569 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2570 +        final CompletableFutureInc r = new CompletableFutureInc(m);
2571 +        if (!createIncomplete) f.complete(v1);
2572 +        final CompletableFuture<Integer> g = m.thenCompose(f, r);
2573 +        if (createIncomplete) f.complete(v1);
2574 +
2575 +        checkCompletedNormally(g, inc(v1));
2576 +        checkCompletedNormally(f, v1);
2577 +        r.assertValue(v1);
2578 +    }}
2579 +
2580 +    /**
2581 +     * thenCompose result completes exceptionally after exceptional
2582 +     * completion of source
2583 +     */
2584 +    public void testThenCompose_exceptionalCompletion() {
2585 +        for (ExecutionMode m : ExecutionMode.values())
2586 +        for (boolean createIncomplete : new boolean[] { true, false })
2587 +    {
2588 +        final CFException ex = new CFException();
2589 +        final CompletableFutureInc r = new CompletableFutureInc(m);
2590 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2591 +        if (!createIncomplete) f.completeExceptionally(ex);
2592 +        final CompletableFuture<Integer> g = m.thenCompose(f, r);
2593 +        if (createIncomplete) f.completeExceptionally(ex);
2594 +
2595 +        checkCompletedWithWrappedException(g, ex);
2596 +        checkCompletedExceptionally(f, ex);
2597 +        r.assertNotInvoked();
2598 +    }}
2599 +
2600 +    /**
2601 +     * thenCompose result completes exceptionally if action does
2602 +     */
2603 +    public void testThenCompose_actionFailed() {
2604 +        for (ExecutionMode m : ExecutionMode.values())
2605 +        for (boolean createIncomplete : new boolean[] { true, false })
2606 +        for (Integer v1 : new Integer[] { 1, null })
2607 +    {
2608 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2609 +        final FailingCompletableFutureFunction r
2610 +            = new FailingCompletableFutureFunction(m);
2611 +        if (!createIncomplete) f.complete(v1);
2612 +        final CompletableFuture<Integer> g = m.thenCompose(f, r);
2613 +        if (createIncomplete) f.complete(v1);
2614 +
2615 +        checkCompletedWithWrappedCFException(g);
2616 +        checkCompletedNormally(f, v1);
2617 +    }}
2618 +
2619 +    /**
2620 +     * thenCompose result completes exceptionally if source cancelled
2621 +     */
2622 +    public void testThenCompose_sourceCancelled() {
2623 +        for (ExecutionMode m : ExecutionMode.values())
2624 +        for (boolean createIncomplete : new boolean[] { true, false })
2625 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2626 +    {
2627 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2628 +        final CompletableFutureInc r = new CompletableFutureInc(m);
2629 +        if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
2630 +        final CompletableFuture<Integer> g = m.thenCompose(f, r);
2631 +        if (createIncomplete) {
2632 +            checkIncomplete(g);
2633 +            assertTrue(f.cancel(mayInterruptIfRunning));
2634 +        }
2635 +
2636 +        checkCompletedWithWrappedCancellationException(g);
2637 +        checkCancelled(f);
2638 +    }}
2639 +
2640 +    // other static methods
2641 +
2642 +    /**
2643 +     * allOf(no component futures) returns a future completed normally
2644 +     * with the value null
2645 +     */
2646 +    public void testAllOf_empty() throws Exception {
2647 +        CompletableFuture<Void> f = CompletableFuture.allOf();
2648 +        checkCompletedNormally(f, null);
2649 +    }
2650 +
2651 +    /**
2652 +     * allOf returns a future completed normally with the value null
2653 +     * when all components complete normally
2654 +     */
2655 +    public void testAllOf_normal() throws Exception {
2656 +        for (int k = 1; k < 20; ++k) {
2657 +            CompletableFuture<Integer>[] fs
2658 +                = (CompletableFuture<Integer>[]) new CompletableFuture[k];
2659 +            for (int i = 0; i < k; ++i)
2660 +                fs[i] = new CompletableFuture<>();
2661 +            CompletableFuture<Void> f = CompletableFuture.allOf(fs);
2662 +            for (int i = 0; i < k; ++i) {
2663 +                checkIncomplete(f);
2664 +                checkIncomplete(CompletableFuture.allOf(fs));
2665 +                fs[i].complete(one);
2666 +            }
2667 +            checkCompletedNormally(f, null);
2668 +            checkCompletedNormally(CompletableFuture.allOf(fs), null);
2669 +        }
2670 +    }
2671 +
2672 +    public void testAllOf_backwards() throws Exception {
2673 +        for (int k = 1; k < 20; ++k) {
2674 +            CompletableFuture<Integer>[] fs
2675 +                = (CompletableFuture<Integer>[]) new CompletableFuture[k];
2676 +            for (int i = 0; i < k; ++i)
2677 +                fs[i] = new CompletableFuture<>();
2678 +            CompletableFuture<Void> f = CompletableFuture.allOf(fs);
2679 +            for (int i = k - 1; i >= 0; i--) {
2680 +                checkIncomplete(f);
2681 +                checkIncomplete(CompletableFuture.allOf(fs));
2682 +                fs[i].complete(one);
2683 +            }
2684 +            checkCompletedNormally(f, null);
2685 +            checkCompletedNormally(CompletableFuture.allOf(fs), null);
2686 +        }
2687 +    }
2688 +
2689 +    /**
2690 +     * anyOf(no component futures) returns an incomplete future
2691 +     */
2692 +    public void testAnyOf_empty() throws Exception {
2693 +        CompletableFuture<Object> f = CompletableFuture.anyOf();
2694 +        checkIncomplete(f);
2695      }
2696 +
2697 +    /**
2698 +     * anyOf returns a future completed normally with a value when
2699 +     * a component future does
2700 +     */
2701 +    public void testAnyOf_normal() throws Exception {
2702 +        for (int k = 0; k < 10; ++k) {
2703 +            CompletableFuture[] fs = new CompletableFuture[k];
2704 +            for (int i = 0; i < k; ++i)
2705 +                fs[i] = new CompletableFuture<>();
2706 +            CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
2707 +            checkIncomplete(f);
2708 +            for (int i = 0; i < k; ++i) {
2709 +                fs[i].complete(one);
2710 +                checkCompletedNormally(f, one);
2711 +                checkCompletedNormally(CompletableFuture.anyOf(fs), one);
2712 +            }
2713 +        }
2714 +    }
2715 +
2716 +    /**
2717 +     * anyOf result completes exceptionally when any component does.
2718 +     */
2719 +    public void testAnyOf_exceptional() throws Exception {
2720 +        for (int k = 0; k < 10; ++k) {
2721 +            CompletableFuture[] fs = new CompletableFuture[k];
2722 +            for (int i = 0; i < k; ++i)
2723 +                fs[i] = new CompletableFuture<>();
2724 +            CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
2725 +            checkIncomplete(f);
2726 +            for (int i = 0; i < k; ++i) {
2727 +                fs[i].completeExceptionally(new CFException());
2728 +                checkCompletedWithWrappedCFException(f);
2729 +                checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
2730 +            }
2731 +        }
2732 +    }
2733 +
2734 +    /**
2735 +     * Completion methods throw NullPointerException with null arguments
2736 +     */
2737 +    public void testNPE() {
2738 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2739 +        CompletableFuture<Integer> g = new CompletableFuture<>();
2740 +        CompletableFuture<Integer> nullFuture = (CompletableFuture<Integer>)null;
2741 +        CompletableFuture<?> h;
2742 +        ThreadExecutor exec = new ThreadExecutor();
2743 +
2744 +        Runnable[] throwingActions = {
2745 +            () -> CompletableFuture.supplyAsync(null),
2746 +            () -> CompletableFuture.supplyAsync(null, exec),
2747 +            () -> CompletableFuture.supplyAsync(new IntegerSupplier(ExecutionMode.DEFAULT, 42), null),
2748 +
2749 +            () -> CompletableFuture.runAsync(null),
2750 +            () -> CompletableFuture.runAsync(null, exec),
2751 +            () -> CompletableFuture.runAsync(() -> {}, null),
2752 +
2753 +            () -> f.completeExceptionally(null),
2754 +
2755 +            () -> f.thenApply(null),
2756 +            () -> f.thenApplyAsync(null),
2757 +            () -> f.thenApplyAsync((x) -> x, null),
2758 +            () -> f.thenApplyAsync(null, exec),
2759 +
2760 +            () -> f.thenAccept(null),
2761 +            () -> f.thenAcceptAsync(null),
2762 +            () -> f.thenAcceptAsync((x) -> {} , null),
2763 +            () -> f.thenAcceptAsync(null, exec),
2764 +
2765 +            () -> f.thenRun(null),
2766 +            () -> f.thenRunAsync(null),
2767 +            () -> f.thenRunAsync(() -> {} , null),
2768 +            () -> f.thenRunAsync(null, exec),
2769 +
2770 +            () -> f.thenCombine(g, null),
2771 +            () -> f.thenCombineAsync(g, null),
2772 +            () -> f.thenCombineAsync(g, null, exec),
2773 +            () -> f.thenCombine(nullFuture, (x, y) -> x),
2774 +            () -> f.thenCombineAsync(nullFuture, (x, y) -> x),
2775 +            () -> f.thenCombineAsync(nullFuture, (x, y) -> x, exec),
2776 +            () -> f.thenCombineAsync(g, (x, y) -> x, null),
2777 +
2778 +            () -> f.thenAcceptBoth(g, null),
2779 +            () -> f.thenAcceptBothAsync(g, null),
2780 +            () -> f.thenAcceptBothAsync(g, null, exec),
2781 +            () -> f.thenAcceptBoth(nullFuture, (x, y) -> {}),
2782 +            () -> f.thenAcceptBothAsync(nullFuture, (x, y) -> {}),
2783 +            () -> f.thenAcceptBothAsync(nullFuture, (x, y) -> {}, exec),
2784 +            () -> f.thenAcceptBothAsync(g, (x, y) -> {}, null),
2785 +
2786 +            () -> f.runAfterBoth(g, null),
2787 +            () -> f.runAfterBothAsync(g, null),
2788 +            () -> f.runAfterBothAsync(g, null, exec),
2789 +            () -> f.runAfterBoth(nullFuture, () -> {}),
2790 +            () -> f.runAfterBothAsync(nullFuture, () -> {}),
2791 +            () -> f.runAfterBothAsync(nullFuture, () -> {}, exec),
2792 +            () -> f.runAfterBothAsync(g, () -> {}, null),
2793 +
2794 +            () -> f.applyToEither(g, null),
2795 +            () -> f.applyToEitherAsync(g, null),
2796 +            () -> f.applyToEitherAsync(g, null, exec),
2797 +            () -> f.applyToEither(nullFuture, (x) -> x),
2798 +            () -> f.applyToEitherAsync(nullFuture, (x) -> x),
2799 +            () -> f.applyToEitherAsync(nullFuture, (x) -> x, exec),
2800 +            () -> f.applyToEitherAsync(g, (x) -> x, null),
2801 +
2802 +            () -> f.acceptEither(g, null),
2803 +            () -> f.acceptEitherAsync(g, null),
2804 +            () -> f.acceptEitherAsync(g, null, exec),
2805 +            () -> f.acceptEither(nullFuture, (x) -> {}),
2806 +            () -> f.acceptEitherAsync(nullFuture, (x) -> {}),
2807 +            () -> f.acceptEitherAsync(nullFuture, (x) -> {}, exec),
2808 +            () -> f.acceptEitherAsync(g, (x) -> {}, null),
2809 +
2810 +            () -> f.runAfterEither(g, null),
2811 +            () -> f.runAfterEitherAsync(g, null),
2812 +            () -> f.runAfterEitherAsync(g, null, exec),
2813 +            () -> f.runAfterEither(nullFuture, () -> {}),
2814 +            () -> f.runAfterEitherAsync(nullFuture, () -> {}),
2815 +            () -> f.runAfterEitherAsync(nullFuture, () -> {}, exec),
2816 +            () -> f.runAfterEitherAsync(g, () -> {}, null),
2817 +
2818 +            () -> f.thenCompose(null),
2819 +            () -> f.thenComposeAsync(null),
2820 +            () -> f.thenComposeAsync(new CompletableFutureInc(ExecutionMode.EXECUTOR), null),
2821 +            () -> f.thenComposeAsync(null, exec),
2822 +
2823 +            () -> f.exceptionally(null),
2824 +
2825 +            () -> f.handle(null),
2826 +
2827 +            () -> CompletableFuture.allOf((CompletableFuture<?>)null),
2828 +            () -> CompletableFuture.allOf((CompletableFuture<?>[])null),
2829 +            () -> CompletableFuture.allOf(f, null),
2830 +            () -> CompletableFuture.allOf(null, f),
2831 +
2832 +            () -> CompletableFuture.anyOf((CompletableFuture<?>)null),
2833 +            () -> CompletableFuture.anyOf((CompletableFuture<?>[])null),
2834 +            () -> CompletableFuture.anyOf(f, null),
2835 +            () -> CompletableFuture.anyOf(null, f),
2836 +
2837 +            () -> f.obtrudeException(null),
2838 +        };
2839 +
2840 +        assertThrows(NullPointerException.class, throwingActions);
2841 +        assertEquals(0, exec.count.get());
2842 +    }
2843 +
2844 +    /**
2845 +     * toCompletableFuture returns this CompletableFuture.
2846 +     */
2847 +    public void testToCompletableFuture() {
2848 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2849 +        assertSame(f, f.toCompletableFuture());
2850 +    }
2851 +
2852 +    /**
2853 +     * whenComplete action executes on normal completion, propagating
2854 +     * source result.
2855 +     */
2856 +    public void testWhenComplete_normalCompletion1() {
2857 +        for (ExecutionMode m : ExecutionMode.values())
2858 +        for (boolean createIncomplete : new boolean[] { true, false })
2859 +        for (Integer v1 : new Integer[] { 1, null })
2860 +    {
2861 +        final AtomicInteger a = new AtomicInteger(0);
2862 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2863 +        if (!createIncomplete) f.complete(v1);
2864 +        final CompletableFuture<Integer> g = m.whenComplete
2865 +            (f,
2866 +             (Integer x, Throwable t) -> {
2867 +                m.checkExecutionMode();
2868 +                threadAssertSame(x, v1);
2869 +                threadAssertNull(t);
2870 +                a.getAndIncrement();
2871 +            });
2872 +        if (createIncomplete) f.complete(v1);
2873 +
2874 +        checkCompletedNormally(g, v1);
2875 +        checkCompletedNormally(f, v1);
2876 +        assertEquals(1, a.get());
2877 +    }}
2878 +
2879 +    /**
2880 +     * whenComplete action executes on exceptional completion, propagating
2881 +     * source result.
2882 +     */
2883 +    public void testWhenComplete_exceptionalCompletion() {
2884 +        for (ExecutionMode m : ExecutionMode.values())
2885 +        for (boolean createIncomplete : new boolean[] { true, false })
2886 +        for (Integer v1 : new Integer[] { 1, null })
2887 +    {
2888 +        final AtomicInteger a = new AtomicInteger(0);
2889 +        final CFException ex = new CFException();
2890 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2891 +        if (!createIncomplete) f.completeExceptionally(ex);
2892 +        final CompletableFuture<Integer> g = m.whenComplete
2893 +            (f,
2894 +             (Integer x, Throwable t) -> {
2895 +                m.checkExecutionMode();
2896 +                threadAssertNull(x);
2897 +                threadAssertSame(t, ex);
2898 +                a.getAndIncrement();
2899 +            });
2900 +        if (createIncomplete) f.completeExceptionally(ex);
2901 +        checkCompletedExceptionally(f, ex);
2902 +        checkCompletedWithWrappedException(g, ex);
2903 +        assertEquals(1, a.get());
2904 +    }}
2905 +
2906 +    /**
2907 +     * whenComplete action executes on cancelled source, propagating
2908 +     * CancellationException.
2909 +     */
2910 +    public void testWhenComplete_sourceCancelled() {
2911 +        for (ExecutionMode m : ExecutionMode.values())
2912 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2913 +        for (boolean createIncomplete : new boolean[] { true, false })
2914 +    {
2915 +        final AtomicInteger a = new AtomicInteger(0);
2916 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2917 +        if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
2918 +        final CompletableFuture<Integer> g = m.whenComplete
2919 +            (f,
2920 +             (Integer x, Throwable t) -> {
2921 +                m.checkExecutionMode();
2922 +                threadAssertNull(x);
2923 +                threadAssertTrue(t instanceof CancellationException);
2924 +                a.getAndIncrement();
2925 +            });
2926 +        if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
2927 +
2928 +        checkCompletedWithWrappedCancellationException(g);
2929 +        checkCancelled(f);
2930 +        assertEquals(1, a.get());
2931 +    }}
2932 +
2933 +    /**
2934 +     * If a whenComplete action throws an exception when triggered by
2935 +     * a normal completion, it completes exceptionally
2936 +     */
2937 +    public void testWhenComplete_actionFailed() {
2938 +        for (boolean createIncomplete : new boolean[] { true, false })
2939 +        for (ExecutionMode m : ExecutionMode.values())
2940 +        for (Integer v1 : new Integer[] { 1, null })
2941 +    {
2942 +        final AtomicInteger a = new AtomicInteger(0);
2943 +        final CFException ex = new CFException();
2944 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2945 +        if (!createIncomplete) f.complete(v1);
2946 +        final CompletableFuture<Integer> g = m.whenComplete
2947 +            (f,
2948 +             (Integer x, Throwable t) -> {
2949 +                m.checkExecutionMode();
2950 +                threadAssertSame(x, v1);
2951 +                threadAssertNull(t);
2952 +                a.getAndIncrement();
2953 +                throw ex;
2954 +            });
2955 +        if (createIncomplete) f.complete(v1);
2956 +        checkCompletedNormally(f, v1);
2957 +        checkCompletedWithWrappedException(g, ex);
2958 +        assertEquals(1, a.get());
2959 +    }}
2960 +
2961 +    /**
2962 +     * If a whenComplete action throws an exception when triggered by
2963 +     * a source completion that also throws an exception, the source
2964 +     * exception takes precedence.
2965 +     */
2966 +    public void testWhenComplete_actionFailedSourceFailed() {
2967 +        for (boolean createIncomplete : new boolean[] { true, false })
2968 +        for (ExecutionMode m : ExecutionMode.values())
2969 +        for (Integer v1 : new Integer[] { 1, null })
2970 +    {
2971 +        final AtomicInteger a = new AtomicInteger(0);
2972 +        final CFException ex1 = new CFException();
2973 +        final CFException ex2 = new CFException();
2974 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2975 +
2976 +        if (!createIncomplete) f.completeExceptionally(ex1);
2977 +        final CompletableFuture<Integer> g = m.whenComplete
2978 +            (f,
2979 +             (Integer x, Throwable t) -> {
2980 +                m.checkExecutionMode();
2981 +                threadAssertSame(t, ex1);
2982 +                threadAssertNull(x);
2983 +                a.getAndIncrement();
2984 +                throw ex2;
2985 +            });
2986 +        if (createIncomplete) f.completeExceptionally(ex1);
2987 +
2988 +        checkCompletedExceptionally(f, ex1);
2989 +        checkCompletedWithWrappedException(g, ex1);
2990 +        assertEquals(1, a.get());
2991 +    }}
2992 +
2993   }

Diff Legend

Removed lines
+ Added lines
< Changed lines
> Changed lines