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Comparing jsr166/src/test/tck/ForkJoinTaskTest.java (file contents):
Revision 1.12 by jsr166, Mon Sep 13 07:22:29 2010 UTC vs.
Revision 1.27 by jsr166, Mon Nov 22 07:50:50 2010 UTC

#	Line 3 | Line 3
3		* Expert Group and released to the public domain, as explained at
4		* http://creativecommons.org/licenses/publicdomain
5		*/
6	–	import java.util.*;
7	–	import java.util.concurrent.Executor;
8	–	import java.util.concurrent.Executors;
9	–	import java.util.concurrent.ExecutorService;
10	–	import java.util.concurrent.AbstractExecutorService;
11	–	import java.util.concurrent.CountDownLatch;
12	–	import java.util.concurrent.Callable;
13	–	import java.util.concurrent.Future;
6		import java.util.concurrent.ExecutionException;
7		import java.util.concurrent.CancellationException;
16	–	import java.util.concurrent.RejectedExecutionException;
8		import java.util.concurrent.ForkJoinPool;
9		import java.util.concurrent.ForkJoinTask;
10		import java.util.concurrent.ForkJoinWorkerThread;
11		import java.util.concurrent.RecursiveAction;
21	–	import java.util.concurrent.RecursiveTask;
12		import java.util.concurrent.TimeUnit;
13	+	import java.util.concurrent.TimeoutException;
14	+	import java.util.concurrent.atomic.AtomicIntegerFieldUpdater;
15	+	import static java.util.concurrent.TimeUnit.MILLISECONDS;
16	+	import static java.util.concurrent.TimeUnit.SECONDS;
17	+	import java.util.HashSet;
18		import junit.framework.*;
24	–	import java.util.concurrent.TimeUnit;
25	–	import java.util.concurrent.atomic.*;
26	–	import java.util.*;
19
20		public class ForkJoinTaskTest extends JSR166TestCase {
21
#	Line 35 | Line 27 | public class ForkJoinTaskTest extends JS
27		return new TestSuite(ForkJoinTaskTest.class);
28		}
29
30	<	/**
30	>	// Runs with "mainPool" use > 1 thread. singletonPool tests use 1
31	>	static final int mainPoolSize =
32	>	Math.max(2, Runtime.getRuntime().availableProcessors());
33	>
34	>	private static ForkJoinPool mainPool() {
35	>	return new ForkJoinPool(mainPoolSize);
36	>	}
37	>
38	>	private static ForkJoinPool singletonPool() {
39	>	return new ForkJoinPool(1);
40	>	}
41	>
42	>	private static ForkJoinPool asyncSingletonPool() {
43	>	return new ForkJoinPool(1,
44	>	ForkJoinPool.defaultForkJoinWorkerThreadFactory,
45	>	null, true);
46	>	}
47	>
48	>	private void testInvokeOnPool(ForkJoinPool pool, RecursiveAction a) {
49	>	try {
50	>	assertFalse(a.isDone());
51	>	assertFalse(a.isCompletedNormally());
52	>	assertFalse(a.isCompletedAbnormally());
53	>	assertFalse(a.isCancelled());
54	>	assertNull(a.getException());
55	>	assertNull(a.getRawResult());
56	>
57	>	assertNull(pool.invoke(a));
58	>
59	>	assertTrue(a.isDone());
60	>	assertTrue(a.isCompletedNormally());
61	>	assertFalse(a.isCompletedAbnormally());
62	>	assertFalse(a.isCancelled());
63	>	assertNull(a.getException());
64	>	assertNull(a.getRawResult());
65	>	} finally {
66	>	joinPool(pool);
67	>	}
68	>	}
69	>
70	>	void checkNotDone(ForkJoinTask a) {
71	>	assertFalse(a.isDone());
72	>	assertFalse(a.isCompletedNormally());
73	>	assertFalse(a.isCompletedAbnormally());
74	>	assertFalse(a.isCancelled());
75	>	assertNull(a.getException());
76	>	assertNull(a.getRawResult());
77	>
78	>	try {
79	>	a.get(0L, SECONDS);
80	>	shouldThrow();
81	>	} catch (TimeoutException success) {
82	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
83	>	}
84	>
85	>	<T> void checkCompletedNormally(ForkJoinTask<T> a) {
86	>	checkCompletedNormally(a, null);
87	>	}
88	>
89	>	<T> void checkCompletedNormally(ForkJoinTask<T> a, T expected) {
90	>	assertTrue(a.isDone());
91	>	assertFalse(a.isCancelled());
92	>	assertTrue(a.isCompletedNormally());
93	>	assertFalse(a.isCompletedAbnormally());
94	>	assertNull(a.getException());
95	>	assertSame(expected, a.getRawResult());
96	>	assertSame(expected, a.join());
97	>	assertFalse(a.cancel(false));
98	>	assertFalse(a.cancel(true));
99	>	try {
100	>	assertSame(expected, a.get());
101	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
102	>	try {
103	>	assertSame(expected, a.get(5L, SECONDS));
104	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
105	>	}
106	>
107	>	void checkCancelled(ForkJoinTask a) {
108	>	assertTrue(a.isDone());
109	>	assertTrue(a.isCancelled());
110	>	assertFalse(a.isCompletedNormally());
111	>	assertTrue(a.isCompletedAbnormally());
112	>	assertTrue(a.getException() instanceof CancellationException);
113	>	assertNull(a.getRawResult());
114	>	assertTrue(a.cancel(false));
115	>	assertTrue(a.cancel(true));
116	>
117	>	try {
118	>	a.join();
119	>	shouldThrow();
120	>	} catch (CancellationException success) {
121	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
122	>
123	>	try {
124	>	a.get();
125	>	shouldThrow();
126	>	} catch (CancellationException success) {
127	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
128	>
129	>	try {
130	>	a.get(5L, SECONDS);
131	>	shouldThrow();
132	>	} catch (CancellationException success) {
133	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
134	>	}
135	>
136	>	void checkCompletedAbnormally(ForkJoinTask a, Throwable t) {
137	>	assertTrue(a.isDone());
138	>	assertFalse(a.isCancelled());
139	>	assertFalse(a.isCompletedNormally());
140	>	assertTrue(a.isCompletedAbnormally());
141	>	assertSame(t, a.getException());
142	>	assertNull(a.getRawResult());
143	>	assertFalse(a.cancel(false));
144	>	assertFalse(a.cancel(true));
145	>
146	>	try {
147	>	a.join();
148	>	shouldThrow();
149	>	} catch (Throwable expected) {
150	>	assertSame(t, expected);
151	>	}
152	>
153	>	try {
154	>	a.get();
155	>	shouldThrow();
156	>	} catch (ExecutionException success) {
157	>	assertSame(t, success.getCause());
158	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
159	>
160	>	try {
161	>	a.get(5L, SECONDS);
162	>	shouldThrow();
163	>	} catch (ExecutionException success) {
164	>	assertSame(t, success.getCause());
165	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
166	>	}
167	>
168	>	/*
169		* Testing coverage notes:
170		*
171		* To test extension methods and overrides, most tests use
#	Line 43 | Line 173 | public class ForkJoinTaskTest extends JS
173		* differently than supplied Recursive forms.
174		*/
175
46	–	static final ForkJoinPool mainPool = new ForkJoinPool();
47	–	static final ForkJoinPool singletonPool = new ForkJoinPool(1);
48	–	static final ForkJoinPool asyncSingletonPool =
49	–	new ForkJoinPool(1, ForkJoinPool.defaultForkJoinWorkerThreadFactory,
50	–	null, true);
176		static final class FJException extends RuntimeException {
177		FJException() { super(); }
178		}
179
180	<	static abstract class BinaryAsyncAction extends ForkJoinTask<Void> {
180	>	abstract static class BinaryAsyncAction extends ForkJoinTask<Void> {
181		private volatile int controlState;
182
183		static final AtomicIntegerFieldUpdater<BinaryAsyncAction> controlStateUpdater =
#	Line 224 | Line 349 | public class ForkJoinTaskTest extends JS
349		/**
350		* invoke returns when task completes normally.
351		* isCompletedAbnormally and isCancelled return false for normally
352	<	* completed tasks. getRawResult of a RecursiveAction returns null;
352	>	* completed tasks; getRawResult returns null.
353		*/
354		public void testInvoke() {
355	<	RecursiveAction a = new RecursiveAction() {
356	<	public void compute() {
355	>	RecursiveAction a = new CheckedRecursiveAction() {
356	>	public void realCompute() {
357		AsyncFib f = new AsyncFib(8);
358	<	f.invoke();
359	<	threadAssertTrue(f.number == 21);
360	<	threadAssertTrue(f.isDone());
236	<	threadAssertFalse(f.isCancelled());
237	<	threadAssertFalse(f.isCompletedAbnormally());
238	<	threadAssertTrue(f.getRawResult() == null);
358	>	assertNull(f.invoke());
359	>	assertEquals(21, f.number);
360	>	checkCompletedNormally(f);
361		}};
362	<	mainPool.invoke(a);
362	>	testInvokeOnPool(mainPool(), a);
363		}
364
365		/**
#	Line 246 | Line 368 | public class ForkJoinTaskTest extends JS
368		* completed tasks
369		*/
370		public void testQuietlyInvoke() {
371	<	RecursiveAction a = new RecursiveAction() {
372	<	public void compute() {
371	>	RecursiveAction a = new CheckedRecursiveAction() {
372	>	public void realCompute() {
373		AsyncFib f = new AsyncFib(8);
374		f.quietlyInvoke();
375	<	threadAssertTrue(f.number == 21);
376	<	threadAssertTrue(f.isDone());
255	<	threadAssertFalse(f.isCancelled());
256	<	threadAssertFalse(f.isCompletedAbnormally());
257	<	threadAssertTrue(f.getRawResult() == null);
375	>	assertEquals(21, f.number);
376	>	checkCompletedNormally(f);
377		}};
378	<	mainPool.invoke(a);
378	>	testInvokeOnPool(mainPool(), a);
379		}
380
381		/**
382		* join of a forked task returns when task completes
383		*/
384		public void testForkJoin() {
385	<	RecursiveAction a = new RecursiveAction() {
386	<	public void compute() {
385	>	RecursiveAction a = new CheckedRecursiveAction() {
386	>	public void realCompute() {
387		AsyncFib f = new AsyncFib(8);
388	<	f.fork();
389	<	f.join();
390	<	threadAssertTrue(f.number == 21);
391	<	threadAssertTrue(f.isDone());
273	<	threadAssertTrue(f.getRawResult() == null);
388	>	assertSame(f, f.fork());
389	>	assertNull(f.join());
390	>	assertEquals(21, f.number);
391	>	checkCompletedNormally(f);
392		}};
393	<	mainPool.invoke(a);
393	>	testInvokeOnPool(mainPool(), a);
394		}
395
396		/**
397		* get of a forked task returns when task completes
398		*/
399		public void testForkGet() {
400	<	RecursiveAction a = new RecursiveAction() {
401	<	public void compute() {
402	<	try {
403	<	AsyncFib f = new AsyncFib(8);
404	<	f.fork();
405	<	f.get();
406	<	threadAssertTrue(f.number == 21);
289	<	threadAssertTrue(f.isDone());
290	<	} catch (Exception ex) {
291	<	unexpectedException(ex);
292	<	}
400	>	RecursiveAction a = new CheckedRecursiveAction() {
401	>	public void realCompute() throws Exception {
402	>	AsyncFib f = new AsyncFib(8);
403	>	assertSame(f, f.fork());
404	>	assertNull(f.get());
405	>	assertEquals(21, f.number);
406	>	checkCompletedNormally(f);
407		}};
408	<	mainPool.invoke(a);
408	>	testInvokeOnPool(mainPool(), a);
409		}
410
411		/**
412		* timed get of a forked task returns when task completes
413		*/
414		public void testForkTimedGet() {
415	<	RecursiveAction a = new RecursiveAction() {
416	<	public void compute() {
417	<	try {
418	<	AsyncFib f = new AsyncFib(8);
419	<	f.fork();
420	<	f.get(LONG_DELAY_MS, TimeUnit.MILLISECONDS);
421	<	threadAssertTrue(f.number == 21);
308	<	threadAssertTrue(f.isDone());
309	<	} catch (Exception ex) {
310	<	unexpectedException(ex);
311	<	}
415	>	RecursiveAction a = new CheckedRecursiveAction() {
416	>	public void realCompute() throws Exception {
417	>	AsyncFib f = new AsyncFib(8);
418	>	assertSame(f, f.fork());
419	>	assertNull(f.get(LONG_DELAY_MS, MILLISECONDS));
420	>	assertEquals(21, f.number);
421	>	checkCompletedNormally(f);
422		}};
423	<	mainPool.invoke(a);
423	>	testInvokeOnPool(mainPool(), a);
424		}
425
426		/**
427		* timed get with null time unit throws NPE
428		*/
429		public void testForkTimedGetNPE() {
430	<	RecursiveAction a = new RecursiveAction() {
431	<	public void compute() {
430	>	RecursiveAction a = new CheckedRecursiveAction() {
431	>	public void realCompute() throws Exception {
432	>	AsyncFib f = new AsyncFib(8);
433	>	assertSame(f, f.fork());
434		try {
323	–	AsyncFib f = new AsyncFib(8);
324	–	f.fork();
435		f.get(5L, null);
436		shouldThrow();
437	<	} catch (NullPointerException success) {
328	<	} catch (Exception ex) {
329	<	unexpectedException(ex);
330	<	}
437	>	} catch (NullPointerException success) {}
438		}};
439	<	mainPool.invoke(a);
439	>	testInvokeOnPool(mainPool(), a);
440		}
441
442		/**
443		* quietlyJoin of a forked task returns when task completes
444		*/
445		public void testForkQuietlyJoin() {
446	<	RecursiveAction a = new RecursiveAction() {
447	<	public void compute() {
446	>	RecursiveAction a = new CheckedRecursiveAction() {
447	>	public void realCompute() {
448		AsyncFib f = new AsyncFib(8);
449	<	f.fork();
449	>	assertSame(f, f.fork());
450		f.quietlyJoin();
451	<	threadAssertTrue(f.number == 21);
452	<	threadAssertTrue(f.isDone());
451	>	assertEquals(21, f.number);
452	>	checkCompletedNormally(f);
453		}};
454	<	mainPool.invoke(a);
454	>	testInvokeOnPool(mainPool(), a);
455		}
456
457
#	Line 353 | Line 460 | public class ForkJoinTaskTest extends JS
460		* getQueuedTaskCount returns 0 when quiescent
461		*/
462		public void testForkHelpQuiesce() {
463	<	RecursiveAction a = new RecursiveAction() {
464	<	public void compute() {
463	>	RecursiveAction a = new CheckedRecursiveAction() {
464	>	public void realCompute() {
465		AsyncFib f = new AsyncFib(8);
466	<	f.fork();
466	>	assertSame(f, f.fork());
467		f.helpQuiesce();
468	<	threadAssertTrue(f.number == 21);
469	<	threadAssertTrue(f.isDone());
470	<	threadAssertTrue(getQueuedTaskCount() == 0);
468	>	assertEquals(21, f.number);
469	>	assertEquals(0, getQueuedTaskCount());
470	>	checkCompletedNormally(f);
471		}};
472	<	mainPool.invoke(a);
472	>	testInvokeOnPool(mainPool(), a);
473		}
474
475
#	Line 370 | Line 477 | public class ForkJoinTaskTest extends JS
477		* invoke task throws exception when task completes abnormally
478		*/
479		public void testAbnormalInvoke() {
480	<	RecursiveAction a = new RecursiveAction() {
481	<	public void compute() {
480	>	RecursiveAction a = new CheckedRecursiveAction() {
481	>	public void realCompute() {
482	>	FailingAsyncFib f = new FailingAsyncFib(8);
483		try {
376	–	FailingAsyncFib f = new FailingAsyncFib(8);
484		f.invoke();
485		shouldThrow();
486		} catch (FJException success) {
487	+	checkCompletedAbnormally(f, success);
488		}
489		}};
490	<	mainPool.invoke(a);
490	>	testInvokeOnPool(mainPool(), a);
491		}
492
493		/**
494		* quietlyInvoke task returns when task completes abnormally
495		*/
496		public void testAbnormalQuietlyInvoke() {
497	<	RecursiveAction a = new RecursiveAction() {
498	<	public void compute() {
497	>	RecursiveAction a = new CheckedRecursiveAction() {
498	>	public void realCompute() {
499		FailingAsyncFib f = new FailingAsyncFib(8);
500		f.quietlyInvoke();
501	<	threadAssertTrue(f.isDone());
501	>	assertTrue(f.getException() instanceof FJException);
502	>	checkCompletedAbnormally(f, f.getException());
503		}};
504	<	mainPool.invoke(a);
504	>	testInvokeOnPool(mainPool(), a);
505		}
506
507		/**
508		* join of a forked task throws exception when task completes abnormally
509		*/
510		public void testAbnormalForkJoin() {
511	<	RecursiveAction a = new RecursiveAction() {
512	<	public void compute() {
511	>	RecursiveAction a = new CheckedRecursiveAction() {
512	>	public void realCompute() {
513	>	FailingAsyncFib f = new FailingAsyncFib(8);
514	>	assertSame(f, f.fork());
515		try {
405	–	FailingAsyncFib f = new FailingAsyncFib(8);
406	–	f.fork();
516		f.join();
517		shouldThrow();
518		} catch (FJException success) {
519	+	checkCompletedAbnormally(f, success);
520		}
521		}};
522	<	mainPool.invoke(a);
522	>	testInvokeOnPool(mainPool(), a);
523		}
524
525		/**
526		* get of a forked task throws exception when task completes abnormally
527		*/
528		public void testAbnormalForkGet() {
529	<	RecursiveAction a = new RecursiveAction() {
530	<	public void compute() {
529	>	RecursiveAction a = new CheckedRecursiveAction() {
530	>	public void realCompute() throws Exception {
531	>	FailingAsyncFib f = new FailingAsyncFib(8);
532	>	assertSame(f, f.fork());
533		try {
422	–	FailingAsyncFib f = new FailingAsyncFib(8);
423	–	f.fork();
534		f.get();
535		shouldThrow();
536		} catch (ExecutionException success) {
537	<	} catch (Exception ex) {
538	<	unexpectedException(ex);
537	>	Throwable cause = success.getCause();
538	>	assertTrue(cause instanceof FJException);
539	>	checkCompletedAbnormally(f, cause);
540		}
541		}};
542	<	mainPool.invoke(a);
542	>	testInvokeOnPool(mainPool(), a);
543		}
544
545		/**
546		* timed get of a forked task throws exception when task completes abnormally
547		*/
548		public void testAbnormalForkTimedGet() {
549	<	RecursiveAction a = new RecursiveAction() {
550	<	public void compute() {
549	>	RecursiveAction a = new CheckedRecursiveAction() {
550	>	public void realCompute() throws Exception {
551	>	FailingAsyncFib f = new FailingAsyncFib(8);
552	>	assertSame(f, f.fork());
553		try {
554	<	FailingAsyncFib f = new FailingAsyncFib(8);
442	<	f.fork();
443	<	f.get(LONG_DELAY_MS, TimeUnit.MILLISECONDS);
554	>	f.get(LONG_DELAY_MS, MILLISECONDS);
555		shouldThrow();
556		} catch (ExecutionException success) {
557	<	} catch (Exception ex) {
558	<	unexpectedException(ex);
557	>	Throwable cause = success.getCause();
558	>	assertTrue(cause instanceof FJException);
559	>	checkCompletedAbnormally(f, cause);
560		}
561		}};
562	<	mainPool.invoke(a);
562	>	testInvokeOnPool(mainPool(), a);
563		}
564
565		/**
566		* quietlyJoin of a forked task returns when task completes abnormally
567		*/
568		public void testAbnormalForkQuietlyJoin() {
569	<	RecursiveAction a = new RecursiveAction() {
570	<	public void compute() {
569	>	RecursiveAction a = new CheckedRecursiveAction() {
570	>	public void realCompute() {
571		FailingAsyncFib f = new FailingAsyncFib(8);
572	<	f.fork();
572	>	assertSame(f, f.fork());
573		f.quietlyJoin();
574	<	threadAssertTrue(f.isDone());
575	<	threadAssertTrue(f.isCompletedAbnormally());
464	<	threadAssertTrue(f.getException() instanceof FJException);
574	>	assertTrue(f.getException() instanceof FJException);
575	>	checkCompletedAbnormally(f, f.getException());
576		}};
577	<	mainPool.invoke(a);
577	>	testInvokeOnPool(mainPool(), a);
578		}
579
580		/**
581		* invoke task throws exception when task cancelled
582		*/
583		public void testCancelledInvoke() {
584	<	RecursiveAction a = new RecursiveAction() {
585	<	public void compute() {
584	>	RecursiveAction a = new CheckedRecursiveAction() {
585	>	public void realCompute() {
586	>	AsyncFib f = new AsyncFib(8);
587	>	assertTrue(f.cancel(true));
588		try {
476	–	AsyncFib f = new AsyncFib(8);
477	–	f.cancel(true);
589		f.invoke();
590		shouldThrow();
591		} catch (CancellationException success) {
592	+	checkCancelled(f);
593		}
594		}};
595	<	mainPool.invoke(a);
595	>	testInvokeOnPool(mainPool(), a);
596		}
597
598		/**
599		* join of a forked task throws exception when task cancelled
600		*/
601		public void testCancelledForkJoin() {
602	<	RecursiveAction a = new RecursiveAction() {
603	<	public void compute() {
602	>	RecursiveAction a = new CheckedRecursiveAction() {
603	>	public void realCompute() {
604	>	AsyncFib f = new AsyncFib(8);
605	>	assertTrue(f.cancel(true));
606	>	assertSame(f, f.fork());
607		try {
493	–	AsyncFib f = new AsyncFib(8);
494	–	f.cancel(true);
495	–	f.fork();
608		f.join();
609		shouldThrow();
610		} catch (CancellationException success) {
611	+	checkCancelled(f);
612		}
613		}};
614	<	mainPool.invoke(a);
614	>	testInvokeOnPool(mainPool(), a);
615		}
616
617		/**
618		* get of a forked task throws exception when task cancelled
619		*/
620		public void testCancelledForkGet() {
621	<	RecursiveAction a = new RecursiveAction() {
622	<	public void compute() {
621	>	RecursiveAction a = new CheckedRecursiveAction() {
622	>	public void realCompute() throws Exception {
623	>	AsyncFib f = new AsyncFib(8);
624	>	assertTrue(f.cancel(true));
625	>	assertSame(f, f.fork());
626		try {
511	–	AsyncFib f = new AsyncFib(8);
512	–	f.cancel(true);
513	–	f.fork();
627		f.get();
628		shouldThrow();
629		} catch (CancellationException success) {
630	<	} catch (Exception ex) {
518	<	unexpectedException(ex);
630	>	checkCancelled(f);
631		}
632		}};
633	<	mainPool.invoke(a);
633	>	testInvokeOnPool(mainPool(), a);
634		}
635
636		/**
637		* timed get of a forked task throws exception when task cancelled
638		*/
639	<	public void testCancelledForkTimedGet() {
640	<	RecursiveAction a = new RecursiveAction() {
641	<	public void compute() {
642	<	try {
643	<	AsyncFib f = new AsyncFib(8);
644	<	f.cancel(true);
645	<	f.fork();
646	<	f.get(LONG_DELAY_MS, TimeUnit.MILLISECONDS);
639	>	public void testCancelledForkTimedGet() throws Exception {
640	>	RecursiveAction a = new CheckedRecursiveAction() {
641	>	public void realCompute() throws Exception {
642	>	AsyncFib f = new AsyncFib(8);
643	>	assertTrue(f.cancel(true));
644	>	assertSame(f, f.fork());
645	>	try {
646	>	f.get(LONG_DELAY_MS, MILLISECONDS);
647		shouldThrow();
648		} catch (CancellationException success) {
649	<	} catch (Exception ex) {
538	<	unexpectedException(ex);
649	>	checkCancelled(f);
650		}
651		}};
652	<	mainPool.invoke(a);
652	>	testInvokeOnPool(mainPool(), a);
653		}
654
655		/**
656		* quietlyJoin of a forked task returns when task cancelled
657		*/
658		public void testCancelledForkQuietlyJoin() {
659	<	RecursiveAction a = new RecursiveAction() {
660	<	public void compute() {
659	>	RecursiveAction a = new CheckedRecursiveAction() {
660	>	public void realCompute() {
661		AsyncFib f = new AsyncFib(8);
662	<	f.cancel(true);
663	<	f.fork();
662	>	assertTrue(f.cancel(true));
663	>	assertSame(f, f.fork());
664		f.quietlyJoin();
665	<	threadAssertTrue(f.isDone());
555	<	threadAssertTrue(f.isCompletedAbnormally());
556	<	threadAssertTrue(f.getException() instanceof CancellationException);
665	>	checkCancelled(f);
666		}};
667	<	mainPool.invoke(a);
667	>	testInvokeOnPool(mainPool(), a);
668		}
669
670		/**
671		* getPool of executing task returns its pool
672		*/
673		public void testGetPool() {
674	<	RecursiveAction a = new RecursiveAction() {
675	<	public void compute() {
676	<	threadAssertTrue(getPool() == mainPool);
674	>	final ForkJoinPool mainPool = mainPool();
675	>	RecursiveAction a = new CheckedRecursiveAction() {
676	>	public void realCompute() {
677	>	assertSame(mainPool, getPool());
678		}};
679	<	mainPool.invoke(a);
679	>	testInvokeOnPool(mainPool, a);
680		}
681
682		/**
683		* getPool of non-FJ task returns null
684		*/
685		public void testGetPool2() {
686	<	RecursiveAction a = new RecursiveAction() {
687	<	public void compute() {
688	<	threadAssertTrue(getPool() == null);
686	>	RecursiveAction a = new CheckedRecursiveAction() {
687	>	public void realCompute() {
688	>	assertNull(getPool());
689		}};
690	<	a.invoke();
690	>	assertNull(a.invoke());
691		}
692
693		/**
694		* inForkJoinPool of executing task returns true
695		*/
696		public void testInForkJoinPool() {
697	<	RecursiveAction a = new RecursiveAction() {
698	<	public void compute() {
699	<	threadAssertTrue(inForkJoinPool());
697	>	RecursiveAction a = new CheckedRecursiveAction() {
698	>	public void realCompute() {
699	>	assertTrue(inForkJoinPool());
700		}};
701	<	mainPool.invoke(a);
701	>	testInvokeOnPool(mainPool(), a);
702		}
703
704		/**
705		* inForkJoinPool of non-FJ task returns false
706		*/
707		public void testInForkJoinPool2() {
708	<	RecursiveAction a = new RecursiveAction() {
709	<	public void compute() {
710	<	threadAssertTrue(!inForkJoinPool());
708	>	RecursiveAction a = new CheckedRecursiveAction() {
709	>	public void realCompute() {
710	>	assertFalse(inForkJoinPool());
711		}};
712	<	a.invoke();
712	>	assertNull(a.invoke());
713		}
714
715		/**
716		* setRawResult(null) succeeds
717		*/
718		public void testSetRawResult() {
719	<	RecursiveAction a = new RecursiveAction() {
720	<	public void compute() {
719	>	RecursiveAction a = new CheckedRecursiveAction() {
720	>	public void realCompute() {
721		setRawResult(null);
722	+	assertNull(getRawResult());
723		}};
724	<	a.invoke();
724	>	assertNull(a.invoke());
725		}
726
727		/**
728		* invoke task throws exception after invoking completeExceptionally
729		*/
730		public void testCompleteExceptionally() {
731	<	RecursiveAction a = new RecursiveAction() {
732	<	public void compute() {
731	>	RecursiveAction a = new CheckedRecursiveAction() {
732	>	public void realCompute() {
733	>	AsyncFib f = new AsyncFib(8);
734	>	f.completeExceptionally(new FJException());
735		try {
623	–	AsyncFib f = new AsyncFib(8);
624	–	f.completeExceptionally(new FJException());
736		f.invoke();
737		shouldThrow();
738		} catch (FJException success) {
739	+	checkCompletedAbnormally(f, success);
740		}
741		}};
742	<	mainPool.invoke(a);
742	>	testInvokeOnPool(mainPool(), a);
743		}
744
745		/**
746		* invokeAll(t1, t2) invokes all task arguments
747		*/
748		public void testInvokeAll2() {
749	<	RecursiveAction a = new RecursiveAction() {
750	<	public void compute() {
749	>	RecursiveAction a = new CheckedRecursiveAction() {
750	>	public void realCompute() {
751		AsyncFib f = new AsyncFib(8);
752		AsyncFib g = new AsyncFib(9);
753		invokeAll(f, g);
754	<	threadAssertTrue(f.isDone());
755	<	threadAssertTrue(f.number == 21);
756	<	threadAssertTrue(g.isDone());
757	<	threadAssertTrue(g.number == 34);
754	>	assertEquals(21, f.number);
755	>	assertEquals(34, g.number);
756	>	checkCompletedNormally(f);
757	>	checkCompletedNormally(g);
758		}};
759	<	mainPool.invoke(a);
759	>	testInvokeOnPool(mainPool(), a);
760		}
761
762		/**
763		* invokeAll(tasks) with 1 argument invokes task
764		*/
765		public void testInvokeAll1() {
766	<	RecursiveAction a = new RecursiveAction() {
767	<	public void compute() {
766	>	RecursiveAction a = new CheckedRecursiveAction() {
767	>	public void realCompute() {
768		AsyncFib f = new AsyncFib(8);
769		invokeAll(f);
770	<	threadAssertTrue(f.isDone());
771	<	threadAssertTrue(f.number == 21);
770	>	checkCompletedNormally(f);
771	>	assertEquals(21, f.number);
772		}};
773	<	mainPool.invoke(a);
773	>	testInvokeOnPool(mainPool(), a);
774		}
775
776		/**
777		* invokeAll(tasks) with > 2 argument invokes tasks
778		*/
779		public void testInvokeAll3() {
780	<	RecursiveAction a = new RecursiveAction() {
781	<	public void compute() {
780	>	RecursiveAction a = new CheckedRecursiveAction() {
781	>	public void realCompute() {
782		AsyncFib f = new AsyncFib(8);
783		AsyncFib g = new AsyncFib(9);
784		AsyncFib h = new AsyncFib(7);
785		invokeAll(f, g, h);
786	<	threadAssertTrue(f.isDone());
787	<	threadAssertTrue(f.number == 21);
788	<	threadAssertTrue(g.isDone());
789	<	threadAssertTrue(g.number == 34);
790	<	threadAssertTrue(h.isDone());
791	<	threadAssertTrue(h.number == 13);
786	>	assertEquals(21, f.number);
787	>	assertEquals(34, g.number);
788	>	assertEquals(13, h.number);
789	>	checkCompletedNormally(f);
790	>	checkCompletedNormally(g);
791	>	checkCompletedNormally(h);
792		}};
793	<	mainPool.invoke(a);
793	>	testInvokeOnPool(mainPool(), a);
794		}
795
796		/**
797		* invokeAll(collection) invokes all tasks in the collection
798		*/
799		public void testInvokeAllCollection() {
800	<	RecursiveAction a = new RecursiveAction() {
801	<	public void compute() {
800	>	RecursiveAction a = new CheckedRecursiveAction() {
801	>	public void realCompute() {
802		AsyncFib f = new AsyncFib(8);
803		AsyncFib g = new AsyncFib(9);
804		AsyncFib h = new AsyncFib(7);
#	Line 695 | Line 807 | public class ForkJoinTaskTest extends JS
807		set.add(g);
808		set.add(h);
809		invokeAll(set);
810	<	threadAssertTrue(f.isDone());
811	<	threadAssertTrue(f.number == 21);
812	<	threadAssertTrue(g.isDone());
813	<	threadAssertTrue(g.number == 34);
814	<	threadAssertTrue(h.isDone());
815	<	threadAssertTrue(h.number == 13);
810	>	assertEquals(21, f.number);
811	>	assertEquals(34, g.number);
812	>	assertEquals(13, h.number);
813	>	checkCompletedNormally(f);
814	>	checkCompletedNormally(g);
815	>	checkCompletedNormally(h);
816		}};
817	<	mainPool.invoke(a);
817	>	testInvokeOnPool(mainPool(), a);
818		}
819
820
#	Line 710 | Line 822 | public class ForkJoinTaskTest extends JS
822		* invokeAll(tasks) with any null task throws NPE
823		*/
824		public void testInvokeAllNPE() {
825	<	RecursiveAction a = new RecursiveAction() {
826	<	public void compute() {
825	>	RecursiveAction a = new CheckedRecursiveAction() {
826	>	public void realCompute() {
827	>	AsyncFib f = new AsyncFib(8);
828	>	AsyncFib g = new AsyncFib(9);
829	>	AsyncFib h = null;
830		try {
716	–	AsyncFib f = new AsyncFib(8);
717	–	AsyncFib g = new AsyncFib(9);
718	–	AsyncFib h = null;
831		invokeAll(f, g, h);
832		shouldThrow();
833	<	} catch (NullPointerException success) {
722	<	}
833	>	} catch (NullPointerException success) {}
834		}};
835	<	mainPool.invoke(a);
835	>	testInvokeOnPool(mainPool(), a);
836		}
837
838		/**
839		* invokeAll(t1, t2) throw exception if any task does
840		*/
841		public void testAbnormalInvokeAll2() {
842	<	RecursiveAction a = new RecursiveAction() {
843	<	public void compute() {
842	>	RecursiveAction a = new CheckedRecursiveAction() {
843	>	public void realCompute() {
844	>	AsyncFib f = new AsyncFib(8);
845	>	FailingAsyncFib g = new FailingAsyncFib(9);
846		try {
734	–	AsyncFib f = new AsyncFib(8);
735	–	FailingAsyncFib g = new FailingAsyncFib(9);
847		invokeAll(f, g);
848		shouldThrow();
849		} catch (FJException success) {
850	+	checkCompletedAbnormally(g, success);
851		}
852		}};
853	<	mainPool.invoke(a);
853	>	testInvokeOnPool(mainPool(), a);
854		}
855
856		/**
857		* invokeAll(tasks) with 1 argument throws exception if task does
858		*/
859		public void testAbnormalInvokeAll1() {
860	<	RecursiveAction a = new RecursiveAction() {
861	<	public void compute() {
860	>	RecursiveAction a = new CheckedRecursiveAction() {
861	>	public void realCompute() {
862	>	FailingAsyncFib g = new FailingAsyncFib(9);
863		try {
751	–	FailingAsyncFib g = new FailingAsyncFib(9);
864		invokeAll(g);
865		shouldThrow();
866		} catch (FJException success) {
867	+	checkCompletedAbnormally(g, success);
868		}
869		}};
870	<	mainPool.invoke(a);
870	>	testInvokeOnPool(mainPool(), a);
871		}
872
873		/**
874		* invokeAll(tasks) with > 2 argument throws exception if any task does
875		*/
876		public void testAbnormalInvokeAll3() {
877	<	RecursiveAction a = new RecursiveAction() {
878	<	public void compute() {
877	>	RecursiveAction a = new CheckedRecursiveAction() {
878	>	public void realCompute() {
879	>	AsyncFib f = new AsyncFib(8);
880	>	FailingAsyncFib g = new FailingAsyncFib(9);
881	>	AsyncFib h = new AsyncFib(7);
882		try {
767	–	AsyncFib f = new AsyncFib(8);
768	–	FailingAsyncFib g = new FailingAsyncFib(9);
769	–	AsyncFib h = new AsyncFib(7);
883		invokeAll(f, g, h);
884		shouldThrow();
885		} catch (FJException success) {
886	+	checkCompletedAbnormally(g, success);
887		}
888		}};
889	<	mainPool.invoke(a);
889	>	testInvokeOnPool(mainPool(), a);
890		}
891
892		/**
893		* invokeAll(collection)  throws exception if any task does
894		*/
895		public void testAbnormalInvokeAllCollection() {
896	<	RecursiveAction a = new RecursiveAction() {
897	<	public void compute() {
896	>	RecursiveAction a = new CheckedRecursiveAction() {
897	>	public void realCompute() {
898	>	FailingAsyncFib f = new FailingAsyncFib(8);
899	>	AsyncFib g = new AsyncFib(9);
900	>	AsyncFib h = new AsyncFib(7);
901	>	HashSet set = new HashSet();
902	>	set.add(f);
903	>	set.add(g);
904	>	set.add(h);
905		try {
785	–	FailingAsyncFib f = new FailingAsyncFib(8);
786	–	AsyncFib g = new AsyncFib(9);
787	–	AsyncFib h = new AsyncFib(7);
788	–	HashSet set = new HashSet();
789	–	set.add(f);
790	–	set.add(g);
791	–	set.add(h);
906		invokeAll(set);
907		shouldThrow();
908		} catch (FJException success) {
909	+	checkCompletedAbnormally(f, success);
910		}
911		}};
912	<	mainPool.invoke(a);
912	>	testInvokeOnPool(mainPool(), a);
913		}
914
915		/**
#	Line 802 | Line 917 | public class ForkJoinTaskTest extends JS
917		* and suppresses execution
918		*/
919		public void testTryUnfork() {
920	<	RecursiveAction a = new RecursiveAction() {
921	<	public void compute() {
920	>	RecursiveAction a = new CheckedRecursiveAction() {
921	>	public void realCompute() {
922		AsyncFib g = new AsyncFib(9);
923	<	g.fork();
923	>	assertSame(g, g.fork());
924		AsyncFib f = new AsyncFib(8);
925	<	f.fork();
926	<	threadAssertTrue(f.tryUnfork());
925	>	assertSame(f, f.fork());
926	>	assertTrue(f.tryUnfork());
927		helpQuiesce();
928	<	threadAssertFalse(f.isDone());
929	<	threadAssertTrue(g.isDone());
928	>	checkNotDone(f);
929	>	checkCompletedNormally(g);
930		}};
931	<	singletonPool.invoke(a);
931	>	testInvokeOnPool(singletonPool(), a);
932		}
933
934		/**
#	Line 821 | Line 936 | public class ForkJoinTaskTest extends JS
936		* there are more tasks than threads
937		*/
938		public void testGetSurplusQueuedTaskCount() {
939	<	RecursiveAction a = new RecursiveAction() {
940	<	public void compute() {
939	>	RecursiveAction a = new CheckedRecursiveAction() {
940	>	public void realCompute() {
941		AsyncFib h = new AsyncFib(7);
942	<	h.fork();
942	>	assertSame(h, h.fork());
943		AsyncFib g = new AsyncFib(9);
944	<	g.fork();
944	>	assertSame(g, g.fork());
945		AsyncFib f = new AsyncFib(8);
946	<	f.fork();
947	<	threadAssertTrue(getSurplusQueuedTaskCount() > 0);
946	>	assertSame(f, f.fork());
947	>	assertTrue(getSurplusQueuedTaskCount() > 0);
948		helpQuiesce();
949	+	assertEquals(0, getSurplusQueuedTaskCount());
950	+	checkCompletedNormally(f);
951	+	checkCompletedNormally(g);
952	+	checkCompletedNormally(h);
953		}};
954	<	singletonPool.invoke(a);
954	>	testInvokeOnPool(singletonPool(), a);
955		}
956
957		/**
958		* peekNextLocalTask returns most recent unexecuted task.
959		*/
960		public void testPeekNextLocalTask() {
961	<	RecursiveAction a = new RecursiveAction() {
962	<	public void compute() {
961	>	RecursiveAction a = new CheckedRecursiveAction() {
962	>	public void realCompute() {
963		AsyncFib g = new AsyncFib(9);
964	<	g.fork();
964	>	assertSame(g, g.fork());
965		AsyncFib f = new AsyncFib(8);
966	<	f.fork();
967	<	threadAssertTrue(peekNextLocalTask() == f);
968	<	f.join();
969	<	threadAssertTrue(f.isDone());
966	>	assertSame(f, f.fork());
967	>	assertSame(f, peekNextLocalTask());
968	>	assertNull(f.join());
969	>	checkCompletedNormally(f);
970		helpQuiesce();
971	+	checkCompletedNormally(g);
972		}};
973	<	singletonPool.invoke(a);
973	>	testInvokeOnPool(singletonPool(), a);
974		}
975
976		/**
977	<	* pollNextLocalTask returns most recent unexecuted task
978	<	* without executing it
977	>	* pollNextLocalTask returns most recent unexecuted task without
978	>	* executing it
979		*/
980		public void testPollNextLocalTask() {
981	<	RecursiveAction a = new RecursiveAction() {
982	<	public void compute() {
981	>	RecursiveAction a = new CheckedRecursiveAction() {
982	>	public void realCompute() {
983		AsyncFib g = new AsyncFib(9);
984	<	g.fork();
984	>	assertSame(g, g.fork());
985		AsyncFib f = new AsyncFib(8);
986	<	f.fork();
987	<	threadAssertTrue(pollNextLocalTask() == f);
986	>	assertSame(f, f.fork());
987	>	assertSame(f, pollNextLocalTask());
988		helpQuiesce();
989	<	threadAssertFalse(f.isDone());
989	>	checkNotDone(f);
990	>	assertEquals(34, g.number);
991	>	checkCompletedNormally(g);
992		}};
993	<	singletonPool.invoke(a);
993	>	testInvokeOnPool(singletonPool(), a);
994		}
995
996		/**
997	<	* pollTask returns an unexecuted task
876	<	* without executing it
997	>	* pollTask returns an unexecuted task without executing it
998		*/
999		public void testPollTask() {
1000	<	RecursiveAction a = new RecursiveAction() {
1001	<	public void compute() {
1000	>	RecursiveAction a = new CheckedRecursiveAction() {
1001	>	public void realCompute() {
1002		AsyncFib g = new AsyncFib(9);
1003	<	g.fork();
1003	>	assertSame(g, g.fork());
1004		AsyncFib f = new AsyncFib(8);
1005	<	f.fork();
1006	<	threadAssertTrue(pollTask() == f);
1005	>	assertSame(f, f.fork());
1006	>	assertSame(f, pollTask());
1007		helpQuiesce();
1008	<	threadAssertFalse(f.isDone());
1009	<	threadAssertTrue(g.isDone());
1008	>	checkNotDone(f);
1009	>	checkCompletedNormally(g);
1010		}};
1011	<	singletonPool.invoke(a);
1011	>	testInvokeOnPool(singletonPool(), a);
1012		}
1013
1014		/**
1015		* peekNextLocalTask returns least recent unexecuted task in async mode
1016		*/
1017		public void testPeekNextLocalTaskAsync() {
1018	<	RecursiveAction a = new RecursiveAction() {
1019	<	public void compute() {
1018	>	RecursiveAction a = new CheckedRecursiveAction() {
1019	>	public void realCompute() {
1020		AsyncFib g = new AsyncFib(9);
1021	<	g.fork();
1021	>	assertSame(g, g.fork());
1022		AsyncFib f = new AsyncFib(8);
1023	<	f.fork();
1024	<	threadAssertTrue(peekNextLocalTask() == g);
1025	<	f.join();
1023	>	assertSame(f, f.fork());
1024	>	assertSame(g, peekNextLocalTask());
1025	>	assertNull(f.join());
1026		helpQuiesce();
1027	<	threadAssertTrue(f.isDone());
1027	>	checkCompletedNormally(f);
1028	>	assertEquals(34, g.number);
1029	>	checkCompletedNormally(g);
1030		}};
1031	<	asyncSingletonPool.invoke(a);
1031	>	testInvokeOnPool(asyncSingletonPool(), a);
1032		}
1033
1034		/**
1035	<	* pollNextLocalTask returns least recent unexecuted task
1036	<	* without executing it, in async mode
1035	>	* pollNextLocalTask returns least recent unexecuted task without
1036	>	* executing it, in async mode
1037		*/
1038		public void testPollNextLocalTaskAsync() {
1039	<	RecursiveAction a = new RecursiveAction() {
1040	<	public void compute() {
1039	>	RecursiveAction a = new CheckedRecursiveAction() {
1040	>	public void realCompute() {
1041		AsyncFib g = new AsyncFib(9);
1042	<	g.fork();
1042	>	assertSame(g, g.fork());
1043		AsyncFib f = new AsyncFib(8);
1044	<	f.fork();
1045	<	threadAssertTrue(pollNextLocalTask() == g);
1044	>	assertSame(f, f.fork());
1045	>	assertSame(g, pollNextLocalTask());
1046		helpQuiesce();
1047	<	threadAssertTrue(f.isDone());
1048	<	threadAssertFalse(g.isDone());
1047	>	assertEquals(21, f.number);
1048	>	checkCompletedNormally(f);
1049	>	checkNotDone(g);
1050		}};
1051	<	asyncSingletonPool.invoke(a);
1051	>	testInvokeOnPool(asyncSingletonPool(), a);
1052		}
1053
1054		/**
1055	<	* pollTask returns an unexecuted task
1056	<	* without executing it, in async mode
1055	>	* pollTask returns an unexecuted task without executing it, in
1056	>	* async mode
1057		*/
1058		public void testPollTaskAsync() {
1059	<	RecursiveAction a = new RecursiveAction() {
1060	<	public void compute() {
1059	>	RecursiveAction a = new CheckedRecursiveAction() {
1060	>	public void realCompute() {
1061		AsyncFib g = new AsyncFib(9);
1062	<	g.fork();
1062	>	assertSame(g, g.fork());
1063		AsyncFib f = new AsyncFib(8);
1064	<	f.fork();
1065	<	threadAssertTrue(pollTask() == g);
1064	>	assertSame(f, f.fork());
1065	>	assertSame(g, pollTask());
1066		helpQuiesce();
1067	<	threadAssertTrue(f.isDone());
1068	<	threadAssertFalse(g.isDone());
1067	>	assertEquals(21, f.number);
1068	>	checkCompletedNormally(f);
1069	>	checkNotDone(g);
1070	>	}};
1071	>	testInvokeOnPool(asyncSingletonPool(), a);
1072	>	}
1073	>
1074	>	// versions for singleton pools
1075	>
1076	>	/**
1077	>	* invoke returns when task completes normally.
1078	>	* isCompletedAbnormally and isCancelled return false for normally
1079	>	* completed tasks; getRawResult returns null.
1080	>	*/
1081	>	public void testInvokeSingleton() {
1082	>	RecursiveAction a = new CheckedRecursiveAction() {
1083	>	public void realCompute() {
1084	>	AsyncFib f = new AsyncFib(8);
1085	>	assertNull(f.invoke());
1086	>	assertEquals(21, f.number);
1087	>	checkCompletedNormally(f);
1088	>	}};
1089	>	testInvokeOnPool(singletonPool(), a);
1090	>	}
1091	>
1092	>	/**
1093	>	* quietlyInvoke task returns when task completes normally.
1094	>	* isCompletedAbnormally and isCancelled return false for normally
1095	>	* completed tasks
1096	>	*/
1097	>	public void testQuietlyInvokeSingleton() {
1098	>	RecursiveAction a = new CheckedRecursiveAction() {
1099	>	public void realCompute() {
1100	>	AsyncFib f = new AsyncFib(8);
1101	>	f.quietlyInvoke();
1102	>	assertEquals(21, f.number);
1103	>	checkCompletedNormally(f);
1104	>	}};
1105	>	testInvokeOnPool(singletonPool(), a);
1106	>	}
1107	>
1108	>	/**
1109	>	* join of a forked task returns when task completes
1110	>	*/
1111	>	public void testForkJoinSingleton() {
1112	>	RecursiveAction a = new CheckedRecursiveAction() {
1113	>	public void realCompute() {
1114	>	AsyncFib f = new AsyncFib(8);
1115	>	assertSame(f, f.fork());
1116	>	assertNull(f.join());
1117	>	assertEquals(21, f.number);
1118	>	checkCompletedNormally(f);
1119	>	}};
1120	>	testInvokeOnPool(singletonPool(), a);
1121	>	}
1122	>
1123	>	/**
1124	>	* get of a forked task returns when task completes
1125	>	*/
1126	>	public void testForkGetSingleton() {
1127	>	RecursiveAction a = new CheckedRecursiveAction() {
1128	>	public void realCompute() throws Exception {
1129	>	AsyncFib f = new AsyncFib(8);
1130	>	assertSame(f, f.fork());
1131	>	assertNull(f.get());
1132	>	assertEquals(21, f.number);
1133	>	checkCompletedNormally(f);
1134	>	}};
1135	>	testInvokeOnPool(singletonPool(), a);
1136	>	}
1137	>
1138	>	/**
1139	>	* timed get of a forked task returns when task completes
1140	>	*/
1141	>	public void testForkTimedGetSingleton() {
1142	>	RecursiveAction a = new CheckedRecursiveAction() {
1143	>	public void realCompute() throws Exception {
1144	>	AsyncFib f = new AsyncFib(8);
1145	>	assertSame(f, f.fork());
1146	>	assertNull(f.get(LONG_DELAY_MS, MILLISECONDS));
1147	>	assertEquals(21, f.number);
1148	>	checkCompletedNormally(f);
1149	>	}};
1150	>	testInvokeOnPool(singletonPool(), a);
1151	>	}
1152	>
1153	>	/**
1154	>	* timed get with null time unit throws NPE
1155	>	*/
1156	>	public void testForkTimedGetNPESingleton() {
1157	>	RecursiveAction a = new CheckedRecursiveAction() {
1158	>	public void realCompute() throws Exception {
1159	>	AsyncFib f = new AsyncFib(8);
1160	>	assertSame(f, f.fork());
1161	>	try {
1162	>	f.get(5L, null);
1163	>	shouldThrow();
1164	>	} catch (NullPointerException success) {}
1165		}};
1166	<	asyncSingletonPool.invoke(a);
1166	>	testInvokeOnPool(singletonPool(), a);
1167		}
1168	+
1169	+	/**
1170	+	* quietlyJoin of a forked task returns when task completes
1171	+	*/
1172	+	public void testForkQuietlyJoinSingleton() {
1173	+	RecursiveAction a = new CheckedRecursiveAction() {
1174	+	public void realCompute() {
1175	+	AsyncFib f = new AsyncFib(8);
1176	+	assertSame(f, f.fork());
1177	+	f.quietlyJoin();
1178	+	assertEquals(21, f.number);
1179	+	checkCompletedNormally(f);
1180	+	}};
1181	+	testInvokeOnPool(singletonPool(), a);
1182	+	}
1183	+
1184	+
1185	+	/**
1186	+	* helpQuiesce returns when tasks are complete.
1187	+	* getQueuedTaskCount returns 0 when quiescent
1188	+	*/
1189	+	public void testForkHelpQuiesceSingleton() {
1190	+	RecursiveAction a = new CheckedRecursiveAction() {
1191	+	public void realCompute() {
1192	+	AsyncFib f = new AsyncFib(8);
1193	+	assertSame(f, f.fork());
1194	+	f.helpQuiesce();
1195	+	assertEquals(0, getQueuedTaskCount());
1196	+	assertEquals(21, f.number);
1197	+	checkCompletedNormally(f);
1198	+	}};
1199	+	testInvokeOnPool(singletonPool(), a);
1200	+	}
1201	+
1202	+
1203	+	/**
1204	+	* invoke task throws exception when task completes abnormally
1205	+	*/
1206	+	public void testAbnormalInvokeSingleton() {
1207	+	RecursiveAction a = new CheckedRecursiveAction() {
1208	+	public void realCompute() {
1209	+	FailingAsyncFib f = new FailingAsyncFib(8);
1210	+	try {
1211	+	f.invoke();
1212	+	shouldThrow();
1213	+	} catch (FJException success) {
1214	+	checkCompletedAbnormally(f, success);
1215	+	}
1216	+	}};
1217	+	testInvokeOnPool(singletonPool(), a);
1218	+	}
1219	+
1220	+	/**
1221	+	* quietlyInvoke task returns when task completes abnormally
1222	+	*/
1223	+	public void testAbnormalQuietlyInvokeSingleton() {
1224	+	RecursiveAction a = new CheckedRecursiveAction() {
1225	+	public void realCompute() {
1226	+	FailingAsyncFib f = new FailingAsyncFib(8);
1227	+	f.quietlyInvoke();
1228	+	assertTrue(f.getException() instanceof FJException);
1229	+	checkCompletedAbnormally(f, f.getException());
1230	+	}};
1231	+	testInvokeOnPool(singletonPool(), a);
1232	+	}
1233	+
1234	+	/**
1235	+	* join of a forked task throws exception when task completes abnormally
1236	+	*/
1237	+	public void testAbnormalForkJoinSingleton() {
1238	+	RecursiveAction a = new CheckedRecursiveAction() {
1239	+	public void realCompute() {
1240	+	FailingAsyncFib f = new FailingAsyncFib(8);
1241	+	assertSame(f, f.fork());
1242	+	try {
1243	+	f.join();
1244	+	shouldThrow();
1245	+	} catch (FJException success) {
1246	+	checkCompletedAbnormally(f, success);
1247	+	}
1248	+	}};
1249	+	testInvokeOnPool(singletonPool(), a);
1250	+	}
1251	+
1252	+	/**
1253	+	* get of a forked task throws exception when task completes abnormally
1254	+	*/
1255	+	public void testAbnormalForkGetSingleton() {
1256	+	RecursiveAction a = new CheckedRecursiveAction() {
1257	+	public void realCompute() throws Exception {
1258	+	FailingAsyncFib f = new FailingAsyncFib(8);
1259	+	assertSame(f, f.fork());
1260	+	try {
1261	+	f.get();
1262	+	shouldThrow();
1263	+	} catch (ExecutionException success) {
1264	+	Throwable cause = success.getCause();
1265	+	assertTrue(cause instanceof FJException);
1266	+	checkCompletedAbnormally(f, cause);
1267	+	}
1268	+	}};
1269	+	testInvokeOnPool(singletonPool(), a);
1270	+	}
1271	+
1272	+	/**
1273	+	* timed get of a forked task throws exception when task completes abnormally
1274	+	*/
1275	+	public void testAbnormalForkTimedGetSingleton() {
1276	+	RecursiveAction a = new CheckedRecursiveAction() {
1277	+	public void realCompute() throws Exception {
1278	+	FailingAsyncFib f = new FailingAsyncFib(8);
1279	+	assertSame(f, f.fork());
1280	+	try {
1281	+	f.get(LONG_DELAY_MS, MILLISECONDS);
1282	+	shouldThrow();
1283	+	} catch (ExecutionException success) {
1284	+	Throwable cause = success.getCause();
1285	+	assertTrue(cause instanceof FJException);
1286	+	checkCompletedAbnormally(f, cause);
1287	+	}
1288	+	}};
1289	+	testInvokeOnPool(singletonPool(), a);
1290	+	}
1291	+
1292	+	/**
1293	+	* quietlyJoin of a forked task returns when task completes abnormally
1294	+	*/
1295	+	public void testAbnormalForkQuietlyJoinSingleton() {
1296	+	RecursiveAction a = new CheckedRecursiveAction() {
1297	+	public void realCompute() {
1298	+	FailingAsyncFib f = new FailingAsyncFib(8);
1299	+	assertSame(f, f.fork());
1300	+	f.quietlyJoin();
1301	+	assertTrue(f.getException() instanceof FJException);
1302	+	checkCompletedAbnormally(f, f.getException());
1303	+	}};
1304	+	testInvokeOnPool(singletonPool(), a);
1305	+	}
1306	+
1307	+	/**
1308	+	* invoke task throws exception when task cancelled
1309	+	*/
1310	+	public void testCancelledInvokeSingleton() {
1311	+	RecursiveAction a = new CheckedRecursiveAction() {
1312	+	public void realCompute() {
1313	+	AsyncFib f = new AsyncFib(8);
1314	+	assertTrue(f.cancel(true));
1315	+	try {
1316	+	f.invoke();
1317	+	shouldThrow();
1318	+	} catch (CancellationException success) {
1319	+	checkCancelled(f);
1320	+	}
1321	+	}};
1322	+	testInvokeOnPool(singletonPool(), a);
1323	+	}
1324	+
1325	+	/**
1326	+	* join of a forked task throws exception when task cancelled
1327	+	*/
1328	+	public void testCancelledForkJoinSingleton() {
1329	+	RecursiveAction a = new CheckedRecursiveAction() {
1330	+	public void realCompute() {
1331	+	AsyncFib f = new AsyncFib(8);
1332	+	assertTrue(f.cancel(true));
1333	+	assertSame(f, f.fork());
1334	+	try {
1335	+	f.join();
1336	+	shouldThrow();
1337	+	} catch (CancellationException success) {
1338	+	checkCancelled(f);
1339	+	}
1340	+	}};
1341	+	testInvokeOnPool(singletonPool(), a);
1342	+	}
1343	+
1344	+	/**
1345	+	* get of a forked task throws exception when task cancelled
1346	+	*/
1347	+	public void testCancelledForkGetSingleton() {
1348	+	RecursiveAction a = new CheckedRecursiveAction() {
1349	+	public void realCompute() throws Exception {
1350	+	AsyncFib f = new AsyncFib(8);
1351	+	assertTrue(f.cancel(true));
1352	+	assertSame(f, f.fork());
1353	+	try {
1354	+	f.get();
1355	+	shouldThrow();
1356	+	} catch (CancellationException success) {
1357	+	checkCancelled(f);
1358	+	}
1359	+	}};
1360	+	testInvokeOnPool(singletonPool(), a);
1361	+	}
1362	+
1363	+	/**
1364	+	* timed get of a forked task throws exception when task cancelled
1365	+	*/
1366	+	public void testCancelledForkTimedGetSingleton() throws Exception {
1367	+	RecursiveAction a = new CheckedRecursiveAction() {
1368	+	public void realCompute() throws Exception {
1369	+	AsyncFib f = new AsyncFib(8);
1370	+	assertTrue(f.cancel(true));
1371	+	assertSame(f, f.fork());
1372	+	try {
1373	+	f.get(LONG_DELAY_MS, MILLISECONDS);
1374	+	shouldThrow();
1375	+	} catch (CancellationException success) {
1376	+	checkCancelled(f);
1377	+	}
1378	+	}};
1379	+	testInvokeOnPool(singletonPool(), a);
1380	+	}
1381	+
1382	+	/**
1383	+	* quietlyJoin of a forked task returns when task cancelled
1384	+	*/
1385	+	public void testCancelledForkQuietlyJoinSingleton() {
1386	+	RecursiveAction a = new CheckedRecursiveAction() {
1387	+	public void realCompute() {
1388	+	AsyncFib f = new AsyncFib(8);
1389	+	assertTrue(f.cancel(true));
1390	+	assertSame(f, f.fork());
1391	+	f.quietlyJoin();
1392	+	checkCancelled(f);
1393	+	}};
1394	+	testInvokeOnPool(singletonPool(), a);
1395	+	}
1396	+
1397	+	/**
1398	+	* invoke task throws exception after invoking completeExceptionally
1399	+	*/
1400	+	public void testCompleteExceptionallySingleton() {
1401	+	RecursiveAction a = new CheckedRecursiveAction() {
1402	+	public void realCompute() {
1403	+	AsyncFib f = new AsyncFib(8);
1404	+	f.completeExceptionally(new FJException());
1405	+	try {
1406	+	f.invoke();
1407	+	shouldThrow();
1408	+	} catch (FJException success) {
1409	+	checkCompletedAbnormally(f, success);
1410	+	}
1411	+	}};
1412	+	testInvokeOnPool(singletonPool(), a);
1413	+	}
1414	+
1415	+	/**
1416	+	* invokeAll(t1, t2) invokes all task arguments
1417	+	*/
1418	+	public void testInvokeAll2Singleton() {
1419	+	RecursiveAction a = new CheckedRecursiveAction() {
1420	+	public void realCompute() {
1421	+	AsyncFib f = new AsyncFib(8);
1422	+	AsyncFib g = new AsyncFib(9);
1423	+	invokeAll(f, g);
1424	+	assertEquals(21, f.number);
1425	+	assertEquals(34, g.number);
1426	+	checkCompletedNormally(f);
1427	+	checkCompletedNormally(g);
1428	+	}};
1429	+	testInvokeOnPool(singletonPool(), a);
1430	+	}
1431	+
1432	+	/**
1433	+	* invokeAll(tasks) with 1 argument invokes task
1434	+	*/
1435	+	public void testInvokeAll1Singleton() {
1436	+	RecursiveAction a = new CheckedRecursiveAction() {
1437	+	public void realCompute() {
1438	+	AsyncFib f = new AsyncFib(8);
1439	+	invokeAll(f);
1440	+	checkCompletedNormally(f);
1441	+	assertEquals(21, f.number);
1442	+	}};
1443	+	testInvokeOnPool(singletonPool(), a);
1444	+	}
1445	+
1446	+	/**
1447	+	* invokeAll(tasks) with > 2 argument invokes tasks
1448	+	*/
1449	+	public void testInvokeAll3Singleton() {
1450	+	RecursiveAction a = new CheckedRecursiveAction() {
1451	+	public void realCompute() {
1452	+	AsyncFib f = new AsyncFib(8);
1453	+	AsyncFib g = new AsyncFib(9);
1454	+	AsyncFib h = new AsyncFib(7);
1455	+	invokeAll(f, g, h);
1456	+	assertEquals(21, f.number);
1457	+	assertEquals(34, g.number);
1458	+	assertEquals(13, h.number);
1459	+	checkCompletedNormally(f);
1460	+	checkCompletedNormally(g);
1461	+	checkCompletedNormally(h);
1462	+	}};
1463	+	testInvokeOnPool(singletonPool(), a);
1464	+	}
1465	+
1466	+	/**
1467	+	* invokeAll(collection) invokes all tasks in the collection
1468	+	*/
1469	+	public void testInvokeAllCollectionSingleton() {
1470	+	RecursiveAction a = new CheckedRecursiveAction() {
1471	+	public void realCompute() {
1472	+	AsyncFib f = new AsyncFib(8);
1473	+	AsyncFib g = new AsyncFib(9);
1474	+	AsyncFib h = new AsyncFib(7);
1475	+	HashSet set = new HashSet();
1476	+	set.add(f);
1477	+	set.add(g);
1478	+	set.add(h);
1479	+	invokeAll(set);
1480	+	assertEquals(21, f.number);
1481	+	assertEquals(34, g.number);
1482	+	assertEquals(13, h.number);
1483	+	checkCompletedNormally(f);
1484	+	checkCompletedNormally(g);
1485	+	checkCompletedNormally(h);
1486	+	}};
1487	+	testInvokeOnPool(singletonPool(), a);
1488	+	}
1489	+
1490	+
1491	+	/**
1492	+	* invokeAll(tasks) with any null task throws NPE
1493	+	*/
1494	+	public void testInvokeAllNPESingleton() {
1495	+	RecursiveAction a = new CheckedRecursiveAction() {
1496	+	public void realCompute() {
1497	+	AsyncFib f = new AsyncFib(8);
1498	+	AsyncFib g = new AsyncFib(9);
1499	+	AsyncFib h = null;
1500	+	try {
1501	+	invokeAll(f, g, h);
1502	+	shouldThrow();
1503	+	} catch (NullPointerException success) {}
1504	+	}};
1505	+	testInvokeOnPool(singletonPool(), a);
1506	+	}
1507	+
1508	+	/**
1509	+	* invokeAll(t1, t2) throw exception if any task does
1510	+	*/
1511	+	public void testAbnormalInvokeAll2Singleton() {
1512	+	RecursiveAction a = new CheckedRecursiveAction() {
1513	+	public void realCompute() {
1514	+	AsyncFib f = new AsyncFib(8);
1515	+	FailingAsyncFib g = new FailingAsyncFib(9);
1516	+	try {
1517	+	invokeAll(f, g);
1518	+	shouldThrow();
1519	+	} catch (FJException success) {
1520	+	checkCompletedAbnormally(g, success);
1521	+	}
1522	+	}};
1523	+	testInvokeOnPool(singletonPool(), a);
1524	+	}
1525	+
1526	+	/**
1527	+	* invokeAll(tasks) with 1 argument throws exception if task does
1528	+	*/
1529	+	public void testAbnormalInvokeAll1Singleton() {
1530	+	RecursiveAction a = new CheckedRecursiveAction() {
1531	+	public void realCompute() {
1532	+	FailingAsyncFib g = new FailingAsyncFib(9);
1533	+	try {
1534	+	invokeAll(g);
1535	+	shouldThrow();
1536	+	} catch (FJException success) {
1537	+	checkCompletedAbnormally(g, success);
1538	+	}
1539	+	}};
1540	+	testInvokeOnPool(singletonPool(), a);
1541	+	}
1542	+
1543	+	/**
1544	+	* invokeAll(tasks) with > 2 argument throws exception if any task does
1545	+	*/
1546	+	public void testAbnormalInvokeAll3Singleton() {
1547	+	RecursiveAction a = new CheckedRecursiveAction() {
1548	+	public void realCompute() {
1549	+	AsyncFib f = new AsyncFib(8);
1550	+	FailingAsyncFib g = new FailingAsyncFib(9);
1551	+	AsyncFib h = new AsyncFib(7);
1552	+	try {
1553	+	invokeAll(f, g, h);
1554	+	shouldThrow();
1555	+	} catch (FJException success) {
1556	+	checkCompletedAbnormally(g, success);
1557	+	}
1558	+	}};
1559	+	testInvokeOnPool(singletonPool(), a);
1560	+	}
1561	+
1562	+	/**
1563	+	* invokeAll(collection)  throws exception if any task does
1564	+	*/
1565	+	public void testAbnormalInvokeAllCollectionSingleton() {
1566	+	RecursiveAction a = new CheckedRecursiveAction() {
1567	+	public void realCompute() {
1568	+	FailingAsyncFib f = new FailingAsyncFib(8);
1569	+	AsyncFib g = new AsyncFib(9);
1570	+	AsyncFib h = new AsyncFib(7);
1571	+	HashSet set = new HashSet();
1572	+	set.add(f);
1573	+	set.add(g);
1574	+	set.add(h);
1575	+	try {
1576	+	invokeAll(set);
1577	+	shouldThrow();
1578	+	} catch (FJException success) {
1579	+	checkCompletedAbnormally(f, success);
1580	+	}
1581	+	}};
1582	+	testInvokeOnPool(singletonPool(), a);
1583	+	}
1584	+
1585		}

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