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Comparing jsr166/src/test/tck/ForkJoinTaskTest.java (file contents):
Revision 1.18 by jsr166, Fri Sep 17 00:55:19 2010 UTC vs.
Revision 1.51 by jsr166, Wed Aug 24 22:22:39 2016 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
4	<	* http://creativecommons.org/licenses/publicdomain
4	>	* http://creativecommons.org/publicdomain/zero/1.0/
5		*/
6	<	import java.util.concurrent.ExecutionException;
6	>
7	>	import static java.util.concurrent.TimeUnit.MILLISECONDS;
8	>	import static java.util.concurrent.TimeUnit.SECONDS;
9	>
10	>	import java.util.Arrays;
11	>	import java.util.HashSet;
12		import java.util.concurrent.CancellationException;
13	+	import java.util.concurrent.ExecutionException;
14		import java.util.concurrent.ForkJoinPool;
15		import java.util.concurrent.ForkJoinTask;
10	–	import java.util.concurrent.ForkJoinWorkerThread;
16		import java.util.concurrent.RecursiveAction;
17	<	import java.util.concurrent.TimeUnit;
17	>	import java.util.concurrent.TimeoutException;
18		import java.util.concurrent.atomic.AtomicIntegerFieldUpdater;
19	<	import static java.util.concurrent.TimeUnit.MILLISECONDS;
20	<	import java.util.HashSet;
21	<	import junit.framework.*;
19	>
20	>	import junit.framework.Test;
21	>	import junit.framework.TestSuite;
22
23		public class ForkJoinTaskTest extends JSR166TestCase {
24
25		public static void main(String[] args) {
26	<	junit.textui.TestRunner.run(suite());
26	>	main(suite(), args);
27		}
28
29		public static Test suite() {
30		return new TestSuite(ForkJoinTaskTest.class);
31		}
32
33	+	// Runs with "mainPool" use > 1 thread. singletonPool tests use 1
34	+	static final int mainPoolSize =
35	+	Math.max(2, Runtime.getRuntime().availableProcessors());
36	+
37		private static ForkJoinPool mainPool() {
38	<	return new ForkJoinPool();
38	>	return new ForkJoinPool(mainPoolSize);
39		}
40
41		private static ForkJoinPool singletonPool() {
#	Line 40 | Line 49 | public class ForkJoinTaskTest extends JS
49		}
50
51		private void testInvokeOnPool(ForkJoinPool pool, RecursiveAction a) {
52	<	try {
52	>	try (PoolCleaner cleaner = cleaner(pool)) {
53		assertFalse(a.isDone());
54		assertFalse(a.isCompletedNormally());
55		assertFalse(a.isCompletedAbnormally());
56		assertFalse(a.isCancelled());
57		assertNull(a.getException());
58	+	assertNull(a.getRawResult());
59
60		assertNull(pool.invoke(a));
61
#	Line 54 | Line 64 | public class ForkJoinTaskTest extends JS
64		assertFalse(a.isCompletedAbnormally());
65		assertFalse(a.isCancelled());
66		assertNull(a.getException());
67	<	} finally {
58	<	joinPool(pool);
67	>	assertNull(a.getRawResult());
68		}
69		}
70
71	+	void checkNotDone(ForkJoinTask a) {
72	+	assertFalse(a.isDone());
73	+	assertFalse(a.isCompletedNormally());
74	+	assertFalse(a.isCompletedAbnormally());
75	+	assertFalse(a.isCancelled());
76	+	assertNull(a.getException());
77	+	assertNull(a.getRawResult());
78	+
79	+	try {
80	+	a.get(0L, SECONDS);
81	+	shouldThrow();
82	+	} catch (TimeoutException success) {
83	+	} catch (Throwable fail) { threadUnexpectedException(fail); }
84	+	}
85	+
86	+	<T> void checkCompletedNormally(ForkJoinTask<T> a) {
87	+	checkCompletedNormally(a, null);
88	+	}
89	+
90	+	<T> void checkCompletedNormally(ForkJoinTask<T> a, T expected) {
91	+	assertTrue(a.isDone());
92	+	assertFalse(a.isCancelled());
93	+	assertTrue(a.isCompletedNormally());
94	+	assertFalse(a.isCompletedAbnormally());
95	+	assertNull(a.getException());
96	+	assertSame(expected, a.getRawResult());
97	+
98	+	{
99	+	Thread.currentThread().interrupt();
100	+	long startTime = System.nanoTime();
101	+	assertSame(expected, a.join());
102	+	assertTrue(millisElapsedSince(startTime) < SMALL_DELAY_MS);
103	+	Thread.interrupted();
104	+	}
105	+
106	+	{
107	+	Thread.currentThread().interrupt();
108	+	long startTime = System.nanoTime();
109	+	a.quietlyJoin();        // should be no-op
110	+	assertTrue(millisElapsedSince(startTime) < SMALL_DELAY_MS);
111	+	Thread.interrupted();
112	+	}
113	+
114	+	assertFalse(a.cancel(false));
115	+	assertFalse(a.cancel(true));
116	+	try {
117	+	assertSame(expected, a.get());
118	+	} catch (Throwable fail) { threadUnexpectedException(fail); }
119	+	try {
120	+	assertSame(expected, a.get(5L, SECONDS));
121	+	} catch (Throwable fail) { threadUnexpectedException(fail); }
122	+	}
123	+
124	+	void checkCancelled(ForkJoinTask a) {
125	+	assertTrue(a.isDone());
126	+	assertTrue(a.isCancelled());
127	+	assertFalse(a.isCompletedNormally());
128	+	assertTrue(a.isCompletedAbnormally());
129	+	assertTrue(a.getException() instanceof CancellationException);
130	+	assertNull(a.getRawResult());
131	+	assertTrue(a.cancel(false));
132	+	assertTrue(a.cancel(true));
133	+
134	+	try {
135	+	Thread.currentThread().interrupt();
136	+	a.join();
137	+	shouldThrow();
138	+	} catch (CancellationException success) {
139	+	} catch (Throwable fail) { threadUnexpectedException(fail); }
140	+	Thread.interrupted();
141	+
142	+	{
143	+	long startTime = System.nanoTime();
144	+	a.quietlyJoin();        // should be no-op
145	+	assertTrue(millisElapsedSince(startTime) < SMALL_DELAY_MS);
146	+	}
147	+
148	+	try {
149	+	a.get();
150	+	shouldThrow();
151	+	} catch (CancellationException success) {
152	+	} catch (Throwable fail) { threadUnexpectedException(fail); }
153	+
154	+	try {
155	+	a.get(5L, SECONDS);
156	+	shouldThrow();
157	+	} catch (CancellationException success) {
158	+	} catch (Throwable fail) { threadUnexpectedException(fail); }
159	+	}
160	+
161	+	void checkCompletedAbnormally(ForkJoinTask a, Throwable t) {
162	+	assertTrue(a.isDone());
163	+	assertFalse(a.isCancelled());
164	+	assertFalse(a.isCompletedNormally());
165	+	assertTrue(a.isCompletedAbnormally());
166	+	assertSame(t.getClass(), a.getException().getClass());
167	+	assertNull(a.getRawResult());
168	+	assertFalse(a.cancel(false));
169	+	assertFalse(a.cancel(true));
170	+
171	+	try {
172	+	Thread.currentThread().interrupt();
173	+	a.join();
174	+	shouldThrow();
175	+	} catch (Throwable expected) {
176	+	assertSame(t.getClass(), expected.getClass());
177	+	}
178	+	Thread.interrupted();
179	+
180	+	{
181	+	long startTime = System.nanoTime();
182	+	a.quietlyJoin();        // should be no-op
183	+	assertTrue(millisElapsedSince(startTime) < SMALL_DELAY_MS);
184	+	}
185	+
186	+	try {
187	+	a.get();
188	+	shouldThrow();
189	+	} catch (ExecutionException success) {
190	+	assertSame(t.getClass(), success.getCause().getClass());
191	+	} catch (Throwable fail) { threadUnexpectedException(fail); }
192	+
193	+	try {
194	+	a.get(5L, SECONDS);
195	+	shouldThrow();
196	+	} catch (ExecutionException success) {
197	+	assertSame(t.getClass(), success.getCause().getClass());
198	+	} catch (Throwable fail) { threadUnexpectedException(fail); }
199	+	}
200	+
201		/*
202		* Testing coverage notes:
203		*
#	Line 67 | Line 206 | public class ForkJoinTaskTest extends JS
206		* differently than supplied Recursive forms.
207		*/
208
209	<	static final class FJException extends RuntimeException {
209	>	public static final class FJException extends RuntimeException {
210		FJException() { super(); }
211		}
212
213	<	static abstract class BinaryAsyncAction extends ForkJoinTask<Void> {
213	>	abstract static class BinaryAsyncAction extends ForkJoinTask<Void> {
214		private volatile int controlState;
215
216		static final AtomicIntegerFieldUpdater<BinaryAsyncAction> controlStateUpdater =
217		AtomicIntegerFieldUpdater.newUpdater(BinaryAsyncAction.class,
218		"controlState");
219
220	<	private BinaryAsyncAction parent;
220	>	private volatile BinaryAsyncAction parent;
221
222	<	private BinaryAsyncAction sibling;
222	>	private volatile BinaryAsyncAction sibling;
223
224		protected BinaryAsyncAction() {
225		}
#	Line 115 | Line 254 | public class ForkJoinTaskTest extends JS
254		super.completeExceptionally(ex);
255		}
256
257	+	public boolean cancel(boolean mayInterruptIfRunning) {
258	+	if (super.cancel(mayInterruptIfRunning)) {
259	+	completeExceptionally(new FJException());
260	+	return true;
261	+	}
262	+	return false;
263	+	}
264	+
265		public final void complete() {
266		BinaryAsyncAction a = this;
267		for (;;) {
#	Line 136 | Line 283 | public class ForkJoinTaskTest extends JS
283		}
284
285		public final void completeExceptionally(Throwable ex) {
286	<	BinaryAsyncAction a = this;
140	<	while (!a.isCompletedAbnormally()) {
286	>	for (BinaryAsyncAction a = this;;) {
287		a.completeThisExceptionally(ex);
288		BinaryAsyncAction s = a.sibling;
289	<	if (s != null)
290	<	s.cancel(false);
291	<	if (!a.onException() || (a = a.parent) == null)
289	>	if (s != null && !s.isDone())
290	>	s.completeExceptionally(ex);
291	>	if ((a = a.parent) == null)
292		break;
293		}
294		}
#	Line 192 | Line 338 | public class ForkJoinTaskTest extends JS
338		public final boolean exec() {
339		AsyncFib f = this;
340		int n = f.number;
341	<	if (n > 1) {
342	<	while (n > 1) {
343	<	AsyncFib p = f;
344	<	AsyncFib r = new AsyncFib(n - 2);
345	<	f = new AsyncFib(--n);
346	<	p.linkSubtasks(r, f);
201	<	r.fork();
202	<	}
203	<	f.number = n;
341	>	while (n > 1) {
342	>	AsyncFib p = f;
343	>	AsyncFib r = new AsyncFib(n - 2);
344	>	f = new AsyncFib(--n);
345	>	p.linkSubtasks(r, f);
346	>	r.fork();
347		}
348		f.complete();
349		return false;
#	Line 211 | Line 354 | public class ForkJoinTaskTest extends JS
354		}
355		}
356
214	–
357		static final class FailingAsyncFib extends BinaryAsyncAction {
358		int number;
359		public FailingAsyncFib(int n) {
#	Line 221 | Line 363 | public class ForkJoinTaskTest extends JS
363		public final boolean exec() {
364		FailingAsyncFib f = this;
365		int n = f.number;
366	<	if (n > 1) {
367	<	while (n > 1) {
368	<	FailingAsyncFib p = f;
369	<	FailingAsyncFib r = new FailingAsyncFib(n - 2);
370	<	f = new FailingAsyncFib(--n);
371	<	p.linkSubtasks(r, f);
230	<	r.fork();
231	<	}
232	<	f.number = n;
366	>	while (n > 1) {
367	>	FailingAsyncFib p = f;
368	>	FailingAsyncFib r = new FailingAsyncFib(n - 2);
369	>	f = new FailingAsyncFib(--n);
370	>	p.linkSubtasks(r, f);
371	>	r.fork();
372		}
373		f.complete();
374		return false;
#	Line 243 | Line 382 | public class ForkJoinTaskTest extends JS
382		/**
383		* invoke returns when task completes normally.
384		* isCompletedAbnormally and isCancelled return false for normally
385	<	* completed tasks. getRawResult of a RecursiveAction returns null;
385	>	* completed tasks; getRawResult returns null.
386		*/
387		public void testInvoke() {
388		RecursiveAction a = new CheckedRecursiveAction() {
389	<	public void realCompute() {
389	>	protected void realCompute() {
390		AsyncFib f = new AsyncFib(8);
391		assertNull(f.invoke());
392		assertEquals(21, f.number);
393	<	assertTrue(f.isDone());
255	<	assertFalse(f.isCancelled());
256	<	assertFalse(f.isCompletedAbnormally());
257	<	assertNull(f.getRawResult());
393	>	checkCompletedNormally(f);
394		}};
395		testInvokeOnPool(mainPool(), a);
396		}
#	Line 266 | Line 402 | public class ForkJoinTaskTest extends JS
402		*/
403		public void testQuietlyInvoke() {
404		RecursiveAction a = new CheckedRecursiveAction() {
405	<	public void realCompute() {
405	>	protected void realCompute() {
406		AsyncFib f = new AsyncFib(8);
407		f.quietlyInvoke();
408		assertEquals(21, f.number);
409	<	assertTrue(f.isDone());
274	<	assertFalse(f.isCancelled());
275	<	assertFalse(f.isCompletedAbnormally());
276	<	assertNull(f.getRawResult());
409	>	checkCompletedNormally(f);
410		}};
411		testInvokeOnPool(mainPool(), a);
412		}
#	Line 283 | Line 416 | public class ForkJoinTaskTest extends JS
416		*/
417		public void testForkJoin() {
418		RecursiveAction a = new CheckedRecursiveAction() {
419	<	public void realCompute() {
419	>	protected void realCompute() {
420		AsyncFib f = new AsyncFib(8);
421		assertSame(f, f.fork());
422		assertNull(f.join());
423		assertEquals(21, f.number);
424	<	assertTrue(f.isDone());
292	<	assertNull(f.getRawResult());
424	>	checkCompletedNormally(f);
425		}};
426		testInvokeOnPool(mainPool(), a);
427		}
#	Line 299 | Line 431 | public class ForkJoinTaskTest extends JS
431		*/
432		public void testForkGet() {
433		RecursiveAction a = new CheckedRecursiveAction() {
434	<	public void realCompute() throws Exception {
434	>	protected void realCompute() throws Exception {
435		AsyncFib f = new AsyncFib(8);
436		assertSame(f, f.fork());
437		assertNull(f.get());
438		assertEquals(21, f.number);
439	<	assertTrue(f.isDone());
439	>	checkCompletedNormally(f);
440		}};
441		testInvokeOnPool(mainPool(), a);
442		}
#	Line 314 | Line 446 | public class ForkJoinTaskTest extends JS
446		*/
447		public void testForkTimedGet() {
448		RecursiveAction a = new CheckedRecursiveAction() {
449	<	public void realCompute() throws Exception {
449	>	protected void realCompute() throws Exception {
450		AsyncFib f = new AsyncFib(8);
451		assertSame(f, f.fork());
452		assertNull(f.get(LONG_DELAY_MS, MILLISECONDS));
453		assertEquals(21, f.number);
454	<	assertTrue(f.isDone());
454	>	checkCompletedNormally(f);
455		}};
456		testInvokeOnPool(mainPool(), a);
457		}
#	Line 329 | Line 461 | public class ForkJoinTaskTest extends JS
461		*/
462		public void testForkTimedGetNPE() {
463		RecursiveAction a = new CheckedRecursiveAction() {
464	<	public void realCompute() throws Exception {
464	>	protected void realCompute() throws Exception {
465		AsyncFib f = new AsyncFib(8);
466		assertSame(f, f.fork());
467		try {
#	Line 345 | Line 477 | public class ForkJoinTaskTest extends JS
477		*/
478		public void testForkQuietlyJoin() {
479		RecursiveAction a = new CheckedRecursiveAction() {
480	<	public void realCompute() {
480	>	protected void realCompute() {
481		AsyncFib f = new AsyncFib(8);
482		assertSame(f, f.fork());
483		f.quietlyJoin();
484		assertEquals(21, f.number);
485	<	assertTrue(f.isDone());
485	>	checkCompletedNormally(f);
486		}};
487		testInvokeOnPool(mainPool(), a);
488		}
489
358	–
490		/**
491		* helpQuiesce returns when tasks are complete.
492		* getQueuedTaskCount returns 0 when quiescent
493		*/
494		public void testForkHelpQuiesce() {
495		RecursiveAction a = new CheckedRecursiveAction() {
496	<	public void realCompute() {
496	>	protected void realCompute() {
497		AsyncFib f = new AsyncFib(8);
498		assertSame(f, f.fork());
499	<	f.helpQuiesce();
499	>	helpQuiesce();
500		assertEquals(21, f.number);
370	–	assertTrue(f.isDone());
501		assertEquals(0, getQueuedTaskCount());
502	+	checkCompletedNormally(f);
503		}};
504		testInvokeOnPool(mainPool(), a);
505		}
506
376	–
507		/**
508		* invoke task throws exception when task completes abnormally
509		*/
510		public void testAbnormalInvoke() {
511		RecursiveAction a = new CheckedRecursiveAction() {
512	<	public void realCompute() {
512	>	protected void realCompute() {
513		FailingAsyncFib f = new FailingAsyncFib(8);
514		try {
515		f.invoke();
516		shouldThrow();
517	<	} catch (FJException success) {}
517	>	} catch (FJException success) {
518	>	checkCompletedAbnormally(f, success);
519	>	}
520		}};
521		testInvokeOnPool(mainPool(), a);
522		}
#	Line 394 | Line 526 | public class ForkJoinTaskTest extends JS
526		*/
527		public void testAbnormalQuietlyInvoke() {
528		RecursiveAction a = new CheckedRecursiveAction() {
529	<	public void realCompute() {
529	>	protected void realCompute() {
530		FailingAsyncFib f = new FailingAsyncFib(8);
531		f.quietlyInvoke();
532	<	assertTrue(f.isDone());
532	>	assertTrue(f.getException() instanceof FJException);
533	>	checkCompletedAbnormally(f, f.getException());
534		}};
535		testInvokeOnPool(mainPool(), a);
536		}
#	Line 407 | Line 540 | public class ForkJoinTaskTest extends JS
540		*/
541		public void testAbnormalForkJoin() {
542		RecursiveAction a = new CheckedRecursiveAction() {
543	<	public void realCompute() {
543	>	protected void realCompute() {
544		FailingAsyncFib f = new FailingAsyncFib(8);
545		assertSame(f, f.fork());
546		try {
547		f.join();
548		shouldThrow();
549	<	} catch (FJException success) {}
549	>	} catch (FJException success) {
550	>	checkCompletedAbnormally(f, success);
551	>	}
552		}};
553		testInvokeOnPool(mainPool(), a);
554		}
#	Line 423 | Line 558 | public class ForkJoinTaskTest extends JS
558		*/
559		public void testAbnormalForkGet() {
560		RecursiveAction a = new CheckedRecursiveAction() {
561	<	public void realCompute() throws Exception {
561	>	protected void realCompute() throws Exception {
562		FailingAsyncFib f = new FailingAsyncFib(8);
563		assertSame(f, f.fork());
564		try {
#	Line 432 | Line 567 | public class ForkJoinTaskTest extends JS
567		} catch (ExecutionException success) {
568		Throwable cause = success.getCause();
569		assertTrue(cause instanceof FJException);
570	<	assertTrue(f.isDone());
436	<	assertTrue(f.isCompletedAbnormally());
437	<	assertSame(cause, f.getException());
570	>	checkCompletedAbnormally(f, cause);
571		}
572		}};
573		testInvokeOnPool(mainPool(), a);
#	Line 445 | Line 578 | public class ForkJoinTaskTest extends JS
578		*/
579		public void testAbnormalForkTimedGet() {
580		RecursiveAction a = new CheckedRecursiveAction() {
581	<	public void realCompute() throws Exception {
581	>	protected void realCompute() throws Exception {
582		FailingAsyncFib f = new FailingAsyncFib(8);
583		assertSame(f, f.fork());
584		try {
#	Line 454 | Line 587 | public class ForkJoinTaskTest extends JS
587		} catch (ExecutionException success) {
588		Throwable cause = success.getCause();
589		assertTrue(cause instanceof FJException);
590	<	assertTrue(f.isDone());
458	<	assertTrue(f.isCompletedAbnormally());
459	<	assertSame(cause, f.getException());
590	>	checkCompletedAbnormally(f, cause);
591		}
592		}};
593		testInvokeOnPool(mainPool(), a);
#	Line 467 | Line 598 | public class ForkJoinTaskTest extends JS
598		*/
599		public void testAbnormalForkQuietlyJoin() {
600		RecursiveAction a = new CheckedRecursiveAction() {
601	<	public void realCompute() {
601	>	protected void realCompute() {
602		FailingAsyncFib f = new FailingAsyncFib(8);
603		assertSame(f, f.fork());
604		f.quietlyJoin();
474	–	assertTrue(f.isDone());
475	–	assertTrue(f.isCompletedAbnormally());
605		assertTrue(f.getException() instanceof FJException);
606	+	checkCompletedAbnormally(f, f.getException());
607		}};
608		testInvokeOnPool(mainPool(), a);
609		}
#	Line 483 | Line 613 | public class ForkJoinTaskTest extends JS
613		*/
614		public void testCancelledInvoke() {
615		RecursiveAction a = new CheckedRecursiveAction() {
616	<	public void realCompute() {
616	>	protected void realCompute() {
617		AsyncFib f = new AsyncFib(8);
618		assertTrue(f.cancel(true));
619		try {
620		f.invoke();
621		shouldThrow();
622		} catch (CancellationException success) {
623	<	assertTrue(f.isDone());
494	<	assertTrue(f.isCancelled());
495	<	assertTrue(f.isCompletedAbnormally());
496	<	assertTrue(f.getException() instanceof CancellationException);
623	>	checkCancelled(f);
624		}
625		}};
626		testInvokeOnPool(mainPool(), a);
#	Line 504 | Line 631 | public class ForkJoinTaskTest extends JS
631		*/
632		public void testCancelledForkJoin() {
633		RecursiveAction a = new CheckedRecursiveAction() {
634	<	public void realCompute() {
634	>	protected void realCompute() {
635		AsyncFib f = new AsyncFib(8);
636		assertTrue(f.cancel(true));
637		assertSame(f, f.fork());
#	Line 512 | Line 639 | public class ForkJoinTaskTest extends JS
639		f.join();
640		shouldThrow();
641		} catch (CancellationException success) {
642	<	assertTrue(f.isDone());
516	<	assertTrue(f.isCancelled());
517	<	assertTrue(f.isCompletedAbnormally());
518	<	assertTrue(f.getException() instanceof CancellationException);
642	>	checkCancelled(f);
643		}
644		}};
645		testInvokeOnPool(mainPool(), a);
#	Line 526 | Line 650 | public class ForkJoinTaskTest extends JS
650		*/
651		public void testCancelledForkGet() {
652		RecursiveAction a = new CheckedRecursiveAction() {
653	<	public void realCompute() throws Exception {
653	>	protected void realCompute() throws Exception {
654		AsyncFib f = new AsyncFib(8);
655		assertTrue(f.cancel(true));
656		assertSame(f, f.fork());
#	Line 534 | Line 658 | public class ForkJoinTaskTest extends JS
658		f.get();
659		shouldThrow();
660		} catch (CancellationException success) {
661	<	assertTrue(f.isDone());
538	<	assertTrue(f.isCancelled());
539	<	assertTrue(f.isCompletedAbnormally());
540	<	assertTrue(f.getException() instanceof CancellationException);
661	>	checkCancelled(f);
662		}
663		}};
664		testInvokeOnPool(mainPool(), a);
#	Line 548 | Line 669 | public class ForkJoinTaskTest extends JS
669		*/
670		public void testCancelledForkTimedGet() throws Exception {
671		RecursiveAction a = new CheckedRecursiveAction() {
672	<	public void realCompute() throws Exception {
672	>	protected void realCompute() throws Exception {
673		AsyncFib f = new AsyncFib(8);
674		assertTrue(f.cancel(true));
675		assertSame(f, f.fork());
#	Line 556 | Line 677 | public class ForkJoinTaskTest extends JS
677		f.get(LONG_DELAY_MS, MILLISECONDS);
678		shouldThrow();
679		} catch (CancellationException success) {
680	<	assertTrue(f.isDone());
560	<	assertTrue(f.isCancelled());
561	<	assertTrue(f.isCompletedAbnormally());
562	<	assertTrue(f.getException() instanceof CancellationException);
680	>	checkCancelled(f);
681		}
682		}};
683		testInvokeOnPool(mainPool(), a);
#	Line 570 | Line 688 | public class ForkJoinTaskTest extends JS
688		*/
689		public void testCancelledForkQuietlyJoin() {
690		RecursiveAction a = new CheckedRecursiveAction() {
691	<	public void realCompute() {
691	>	protected void realCompute() {
692		AsyncFib f = new AsyncFib(8);
693		assertTrue(f.cancel(true));
694		assertSame(f, f.fork());
695		f.quietlyJoin();
696	<	assertTrue(f.isDone());
579	<	assertTrue(f.isCompletedAbnormally());
580	<	assertTrue(f.isCancelled());
581	<	assertTrue(f.getException() instanceof CancellationException);
696	>	checkCancelled(f);
697		}};
698		testInvokeOnPool(mainPool(), a);
699		}
#	Line 589 | Line 704 | public class ForkJoinTaskTest extends JS
704		public void testGetPool() {
705		final ForkJoinPool mainPool = mainPool();
706		RecursiveAction a = new CheckedRecursiveAction() {
707	<	public void realCompute() {
707	>	protected void realCompute() {
708		assertSame(mainPool, getPool());
709		}};
710		testInvokeOnPool(mainPool, a);
#	Line 600 | Line 715 | public class ForkJoinTaskTest extends JS
715		*/
716		public void testGetPool2() {
717		RecursiveAction a = new CheckedRecursiveAction() {
718	<	public void realCompute() {
718	>	protected void realCompute() {
719		assertNull(getPool());
720		}};
721		assertNull(a.invoke());
#	Line 611 | Line 726 | public class ForkJoinTaskTest extends JS
726		*/
727		public void testInForkJoinPool() {
728		RecursiveAction a = new CheckedRecursiveAction() {
729	<	public void realCompute() {
729	>	protected void realCompute() {
730		assertTrue(inForkJoinPool());
731		}};
732		testInvokeOnPool(mainPool(), a);
#	Line 622 | Line 737 | public class ForkJoinTaskTest extends JS
737		*/
738		public void testInForkJoinPool2() {
739		RecursiveAction a = new CheckedRecursiveAction() {
740	<	public void realCompute() {
741	<	assertTrue(!inForkJoinPool());
740	>	protected void realCompute() {
741	>	assertFalse(inForkJoinPool());
742		}};
743		assertNull(a.invoke());
744		}
#	Line 633 | Line 748 | public class ForkJoinTaskTest extends JS
748		*/
749		public void testSetRawResult() {
750		RecursiveAction a = new CheckedRecursiveAction() {
751	<	public void realCompute() {
751	>	protected void realCompute() {
752		setRawResult(null);
753	+	assertNull(getRawResult());
754		}};
755		assertNull(a.invoke());
756		}
#	Line 644 | Line 760 | public class ForkJoinTaskTest extends JS
760		*/
761		public void testCompleteExceptionally() {
762		RecursiveAction a = new CheckedRecursiveAction() {
763	<	public void realCompute() {
763	>	protected void realCompute() {
764		AsyncFib f = new AsyncFib(8);
765		f.completeExceptionally(new FJException());
766		try {
767		f.invoke();
768		shouldThrow();
769	<	} catch (FJException success) {}
769	>	} catch (FJException success) {
770	>	checkCompletedAbnormally(f, success);
771	>	}
772	>	}};
773	>	testInvokeOnPool(mainPool(), a);
774	>	}
775	>
776	>	/**
777	>	* completeExceptionally(null) surprisingly has the same effect as
778	>	* completeExceptionally(new RuntimeException())
779	>	*/
780	>	public void testCompleteExceptionally_null() {
781	>	RecursiveAction a = new CheckedRecursiveAction() {
782	>	protected void realCompute() {
783	>	AsyncFib f = new AsyncFib(8);
784	>	f.completeExceptionally(null);
785	>	try {
786	>	f.invoke();
787	>	shouldThrow();
788	>	} catch (RuntimeException success) {
789	>	assertSame(success.getClass(), RuntimeException.class);
790	>	assertNull(success.getCause());
791	>	checkCompletedAbnormally(f, success);
792	>	}
793		}};
794		testInvokeOnPool(mainPool(), a);
795		}
#	Line 660 | Line 799 | public class ForkJoinTaskTest extends JS
799		*/
800		public void testInvokeAll2() {
801		RecursiveAction a = new CheckedRecursiveAction() {
802	<	public void realCompute() {
802	>	protected void realCompute() {
803		AsyncFib f = new AsyncFib(8);
804		AsyncFib g = new AsyncFib(9);
805		invokeAll(f, g);
667	–	assertTrue(f.isDone());
806		assertEquals(21, f.number);
669	–	assertTrue(g.isDone());
807		assertEquals(34, g.number);
808	+	checkCompletedNormally(f);
809	+	checkCompletedNormally(g);
810		}};
811		testInvokeOnPool(mainPool(), a);
812		}
#	Line 677 | Line 816 | public class ForkJoinTaskTest extends JS
816		*/
817		public void testInvokeAll1() {
818		RecursiveAction a = new CheckedRecursiveAction() {
819	<	public void realCompute() {
819	>	protected void realCompute() {
820		AsyncFib f = new AsyncFib(8);
821		invokeAll(f);
822	<	assertTrue(f.isDone());
822	>	checkCompletedNormally(f);
823		assertEquals(21, f.number);
824		}};
825		testInvokeOnPool(mainPool(), a);
#	Line 691 | Line 830 | public class ForkJoinTaskTest extends JS
830		*/
831		public void testInvokeAll3() {
832		RecursiveAction a = new CheckedRecursiveAction() {
833	<	public void realCompute() {
833	>	protected void realCompute() {
834		AsyncFib f = new AsyncFib(8);
835		AsyncFib g = new AsyncFib(9);
836		AsyncFib h = new AsyncFib(7);
837		invokeAll(f, g, h);
699	–	assertTrue(f.isDone());
838		assertEquals(21, f.number);
701	–	assertTrue(g.isDone());
839		assertEquals(34, g.number);
703	–	assertTrue(h.isDone());
840		assertEquals(13, h.number);
841	+	checkCompletedNormally(f);
842	+	checkCompletedNormally(g);
843	+	checkCompletedNormally(h);
844		}};
845		testInvokeOnPool(mainPool(), a);
846		}
#	Line 711 | Line 850 | public class ForkJoinTaskTest extends JS
850		*/
851		public void testInvokeAllCollection() {
852		RecursiveAction a = new CheckedRecursiveAction() {
853	<	public void realCompute() {
853	>	protected void realCompute() {
854		AsyncFib f = new AsyncFib(8);
855		AsyncFib g = new AsyncFib(9);
856		AsyncFib h = new AsyncFib(7);
#	Line 720 | Line 859 | public class ForkJoinTaskTest extends JS
859		set.add(g);
860		set.add(h);
861		invokeAll(set);
723	–	assertTrue(f.isDone());
862		assertEquals(21, f.number);
725	–	assertTrue(g.isDone());
863		assertEquals(34, g.number);
727	–	assertTrue(h.isDone());
864		assertEquals(13, h.number);
865	+	checkCompletedNormally(f);
866	+	checkCompletedNormally(g);
867	+	checkCompletedNormally(h);
868		}};
869		testInvokeOnPool(mainPool(), a);
870		}
871
733	–
872		/**
873		* invokeAll(tasks) with any null task throws NPE
874		*/
875		public void testInvokeAllNPE() {
876		RecursiveAction a = new CheckedRecursiveAction() {
877	<	public void realCompute() {
877	>	protected void realCompute() {
878		AsyncFib f = new AsyncFib(8);
879		AsyncFib g = new AsyncFib(9);
880		AsyncFib h = null;
#	Line 753 | Line 891 | public class ForkJoinTaskTest extends JS
891		*/
892		public void testAbnormalInvokeAll2() {
893		RecursiveAction a = new CheckedRecursiveAction() {
894	<	public void realCompute() {
894	>	protected void realCompute() {
895		AsyncFib f = new AsyncFib(8);
896		FailingAsyncFib g = new FailingAsyncFib(9);
897	+	ForkJoinTask[] tasks = { f, g };
898	+	shuffle(tasks);
899		try {
900	<	invokeAll(f, g);
900	>	invokeAll(tasks);
901		shouldThrow();
902	<	} catch (FJException success) {}
902	>	} catch (FJException success) {
903	>	checkCompletedAbnormally(g, success);
904	>	}
905		}};
906		testInvokeOnPool(mainPool(), a);
907		}
#	Line 769 | Line 911 | public class ForkJoinTaskTest extends JS
911		*/
912		public void testAbnormalInvokeAll1() {
913		RecursiveAction a = new CheckedRecursiveAction() {
914	<	public void realCompute() {
914	>	protected void realCompute() {
915		FailingAsyncFib g = new FailingAsyncFib(9);
916		try {
917		invokeAll(g);
918		shouldThrow();
919	<	} catch (FJException success) {}
919	>	} catch (FJException success) {
920	>	checkCompletedAbnormally(g, success);
921	>	}
922		}};
923		testInvokeOnPool(mainPool(), a);
924		}
#	Line 784 | Line 928 | public class ForkJoinTaskTest extends JS
928		*/
929		public void testAbnormalInvokeAll3() {
930		RecursiveAction a = new CheckedRecursiveAction() {
931	<	public void realCompute() {
931	>	protected void realCompute() {
932		AsyncFib f = new AsyncFib(8);
933		FailingAsyncFib g = new FailingAsyncFib(9);
934		AsyncFib h = new AsyncFib(7);
935	+	ForkJoinTask[] tasks = { f, g, h };
936	+	shuffle(tasks);
937		try {
938	<	invokeAll(f, g, h);
938	>	invokeAll(tasks);
939		shouldThrow();
940	<	} catch (FJException success) {}
940	>	} catch (FJException success) {
941	>	checkCompletedAbnormally(g, success);
942	>	}
943		}};
944		testInvokeOnPool(mainPool(), a);
945		}
946
947		/**
948	<	* invokeAll(collection)  throws exception if any task does
948	>	* invokeAll(collection) throws exception if any task does
949		*/
950		public void testAbnormalInvokeAllCollection() {
951		RecursiveAction a = new CheckedRecursiveAction() {
952	<	public void realCompute() {
952	>	protected void realCompute() {
953		FailingAsyncFib f = new FailingAsyncFib(8);
954		AsyncFib g = new AsyncFib(9);
955		AsyncFib h = new AsyncFib(7);
956	<	HashSet set = new HashSet();
957	<	set.add(f);
810	<	set.add(g);
811	<	set.add(h);
956	>	ForkJoinTask[] tasks = { f, g, h };
957	>	shuffle(tasks);
958		try {
959	<	invokeAll(set);
959	>	invokeAll(Arrays.asList(tasks));
960		shouldThrow();
961	<	} catch (FJException success) {}
961	>	} catch (FJException success) {
962	>	checkCompletedAbnormally(f, success);
963	>	}
964		}};
965		testInvokeOnPool(mainPool(), a);
966		}
#	Line 823 | Line 971 | public class ForkJoinTaskTest extends JS
971		*/
972		public void testTryUnfork() {
973		RecursiveAction a = new CheckedRecursiveAction() {
974	<	public void realCompute() {
974	>	protected void realCompute() {
975		AsyncFib g = new AsyncFib(9);
976		assertSame(g, g.fork());
977		AsyncFib f = new AsyncFib(8);
978		assertSame(f, f.fork());
979		assertTrue(f.tryUnfork());
980		helpQuiesce();
981	<	assertFalse(f.isDone());
982	<	assertTrue(g.isDone());
981	>	checkNotDone(f);
982	>	checkCompletedNormally(g);
983		}};
984		testInvokeOnPool(singletonPool(), a);
985		}
#	Line 842 | Line 990 | public class ForkJoinTaskTest extends JS
990		*/
991		public void testGetSurplusQueuedTaskCount() {
992		RecursiveAction a = new CheckedRecursiveAction() {
993	<	public void realCompute() {
993	>	protected void realCompute() {
994		AsyncFib h = new AsyncFib(7);
995		assertSame(h, h.fork());
996		AsyncFib g = new AsyncFib(9);
#	Line 851 | Line 999 | public class ForkJoinTaskTest extends JS
999		assertSame(f, f.fork());
1000		assertTrue(getSurplusQueuedTaskCount() > 0);
1001		helpQuiesce();
1002	+	assertEquals(0, getSurplusQueuedTaskCount());
1003	+	checkCompletedNormally(f);
1004	+	checkCompletedNormally(g);
1005	+	checkCompletedNormally(h);
1006		}};
1007		testInvokeOnPool(singletonPool(), a);
1008		}
#	Line 860 | Line 1012 | public class ForkJoinTaskTest extends JS
1012		*/
1013		public void testPeekNextLocalTask() {
1014		RecursiveAction a = new CheckedRecursiveAction() {
1015	<	public void realCompute() {
1015	>	protected void realCompute() {
1016		AsyncFib g = new AsyncFib(9);
1017		assertSame(g, g.fork());
1018		AsyncFib f = new AsyncFib(8);
1019		assertSame(f, f.fork());
1020		assertSame(f, peekNextLocalTask());
1021		assertNull(f.join());
1022	<	assertTrue(f.isDone());
1022	>	checkCompletedNormally(f);
1023		helpQuiesce();
1024	+	checkCompletedNormally(g);
1025		}};
1026		testInvokeOnPool(singletonPool(), a);
1027		}
1028
1029		/**
1030	<	* pollNextLocalTask returns most recent unexecuted task
1031	<	* without executing it
1030	>	* pollNextLocalTask returns most recent unexecuted task without
1031	>	* executing it
1032		*/
1033		public void testPollNextLocalTask() {
1034		RecursiveAction a = new CheckedRecursiveAction() {
1035	<	public void realCompute() {
1035	>	protected void realCompute() {
1036		AsyncFib g = new AsyncFib(9);
1037		assertSame(g, g.fork());
1038		AsyncFib f = new AsyncFib(8);
1039		assertSame(f, f.fork());
1040		assertSame(f, pollNextLocalTask());
1041		helpQuiesce();
1042	<	assertFalse(f.isDone());
1042	>	checkNotDone(f);
1043	>	assertEquals(34, g.number);
1044	>	checkCompletedNormally(g);
1045		}};
1046		testInvokeOnPool(singletonPool(), a);
1047		}
1048
1049		/**
1050	<	* pollTask returns an unexecuted task
896	<	* without executing it
1050	>	* pollTask returns an unexecuted task without executing it
1051		*/
1052		public void testPollTask() {
1053		RecursiveAction a = new CheckedRecursiveAction() {
1054	<	public void realCompute() {
1054	>	protected void realCompute() {
1055		AsyncFib g = new AsyncFib(9);
1056		assertSame(g, g.fork());
1057		AsyncFib f = new AsyncFib(8);
1058		assertSame(f, f.fork());
1059		assertSame(f, pollTask());
1060		helpQuiesce();
1061	<	assertFalse(f.isDone());
1062	<	assertTrue(g.isDone());
1061	>	checkNotDone(f);
1062	>	checkCompletedNormally(g);
1063		}};
1064		testInvokeOnPool(singletonPool(), a);
1065		}
#	Line 915 | Line 1069 | public class ForkJoinTaskTest extends JS
1069		*/
1070		public void testPeekNextLocalTaskAsync() {
1071		RecursiveAction a = new CheckedRecursiveAction() {
1072	<	public void realCompute() {
1072	>	protected void realCompute() {
1073		AsyncFib g = new AsyncFib(9);
1074		assertSame(g, g.fork());
1075		AsyncFib f = new AsyncFib(8);
#	Line 923 | Line 1077 | public class ForkJoinTaskTest extends JS
1077		assertSame(g, peekNextLocalTask());
1078		assertNull(f.join());
1079		helpQuiesce();
1080	<	assertTrue(f.isDone());
1080	>	checkCompletedNormally(f);
1081	>	assertEquals(34, g.number);
1082	>	checkCompletedNormally(g);
1083		}};
1084		testInvokeOnPool(asyncSingletonPool(), a);
1085		}
1086
1087		/**
1088	<	* pollNextLocalTask returns least recent unexecuted task
1089	<	* without executing it, in async mode
1088	>	* pollNextLocalTask returns least recent unexecuted task without
1089	>	* executing it, in async mode
1090		*/
1091		public void testPollNextLocalTaskAsync() {
1092		RecursiveAction a = new CheckedRecursiveAction() {
1093	<	public void realCompute() {
1093	>	protected void realCompute() {
1094		AsyncFib g = new AsyncFib(9);
1095		assertSame(g, g.fork());
1096		AsyncFib f = new AsyncFib(8);
1097		assertSame(f, f.fork());
1098		assertSame(g, pollNextLocalTask());
1099		helpQuiesce();
1100	<	assertTrue(f.isDone());
1101	<	assertFalse(g.isDone());
1100	>	assertEquals(21, f.number);
1101	>	checkCompletedNormally(f);
1102	>	checkNotDone(g);
1103		}};
1104		testInvokeOnPool(asyncSingletonPool(), a);
1105		}
1106
1107		/**
1108	<	* pollTask returns an unexecuted task
1109	<	* without executing it, in async mode
1108	>	* pollTask returns an unexecuted task without executing it, in
1109	>	* async mode
1110		*/
1111		public void testPollTaskAsync() {
1112		RecursiveAction a = new CheckedRecursiveAction() {
1113	<	public void realCompute() {
1113	>	protected void realCompute() {
1114		AsyncFib g = new AsyncFib(9);
1115		assertSame(g, g.fork());
1116		AsyncFib f = new AsyncFib(8);
1117		assertSame(f, f.fork());
1118		assertSame(g, pollTask());
1119		helpQuiesce();
1120	<	assertTrue(f.isDone());
1121	<	assertFalse(g.isDone());
1120	>	assertEquals(21, f.number);
1121	>	checkCompletedNormally(f);
1122	>	checkNotDone(g);
1123		}};
1124		testInvokeOnPool(asyncSingletonPool(), a);
1125		}
1126	+
1127	+	// versions for singleton pools
1128	+
1129	+	/**
1130	+	* invoke returns when task completes normally.
1131	+	* isCompletedAbnormally and isCancelled return false for normally
1132	+	* completed tasks; getRawResult returns null.
1133	+	*/
1134	+	public void testInvokeSingleton() {
1135	+	RecursiveAction a = new CheckedRecursiveAction() {
1136	+	protected void realCompute() {
1137	+	AsyncFib f = new AsyncFib(8);
1138	+	assertNull(f.invoke());
1139	+	assertEquals(21, f.number);
1140	+	checkCompletedNormally(f);
1141	+	}};
1142	+	testInvokeOnPool(singletonPool(), a);
1143	+	}
1144	+
1145	+	/**
1146	+	* quietlyInvoke task returns when task completes normally.
1147	+	* isCompletedAbnormally and isCancelled return false for normally
1148	+	* completed tasks
1149	+	*/
1150	+	public void testQuietlyInvokeSingleton() {
1151	+	RecursiveAction a = new CheckedRecursiveAction() {
1152	+	protected void realCompute() {
1153	+	AsyncFib f = new AsyncFib(8);
1154	+	f.quietlyInvoke();
1155	+	assertEquals(21, f.number);
1156	+	checkCompletedNormally(f);
1157	+	}};
1158	+	testInvokeOnPool(singletonPool(), a);
1159	+	}
1160	+
1161	+	/**
1162	+	* join of a forked task returns when task completes
1163	+	*/
1164	+	public void testForkJoinSingleton() {
1165	+	RecursiveAction a = new CheckedRecursiveAction() {
1166	+	protected void realCompute() {
1167	+	AsyncFib f = new AsyncFib(8);
1168	+	assertSame(f, f.fork());
1169	+	assertNull(f.join());
1170	+	assertEquals(21, f.number);
1171	+	checkCompletedNormally(f);
1172	+	}};
1173	+	testInvokeOnPool(singletonPool(), a);
1174	+	}
1175	+
1176	+	/**
1177	+	* get of a forked task returns when task completes
1178	+	*/
1179	+	public void testForkGetSingleton() {
1180	+	RecursiveAction a = new CheckedRecursiveAction() {
1181	+	protected void realCompute() throws Exception {
1182	+	AsyncFib f = new AsyncFib(8);
1183	+	assertSame(f, f.fork());
1184	+	assertNull(f.get());
1185	+	assertEquals(21, f.number);
1186	+	checkCompletedNormally(f);
1187	+	}};
1188	+	testInvokeOnPool(singletonPool(), a);
1189	+	}
1190	+
1191	+	/**
1192	+	* timed get of a forked task returns when task completes
1193	+	*/
1194	+	public void testForkTimedGetSingleton() {
1195	+	RecursiveAction a = new CheckedRecursiveAction() {
1196	+	protected void realCompute() throws Exception {
1197	+	AsyncFib f = new AsyncFib(8);
1198	+	assertSame(f, f.fork());
1199	+	assertNull(f.get(LONG_DELAY_MS, MILLISECONDS));
1200	+	assertEquals(21, f.number);
1201	+	checkCompletedNormally(f);
1202	+	}};
1203	+	testInvokeOnPool(singletonPool(), a);
1204	+	}
1205	+
1206	+	/**
1207	+	* timed get with null time unit throws NPE
1208	+	*/
1209	+	public void testForkTimedGetNPESingleton() {
1210	+	RecursiveAction a = new CheckedRecursiveAction() {
1211	+	protected void realCompute() throws Exception {
1212	+	AsyncFib f = new AsyncFib(8);
1213	+	assertSame(f, f.fork());
1214	+	try {
1215	+	f.get(5L, null);
1216	+	shouldThrow();
1217	+	} catch (NullPointerException success) {}
1218	+	}};
1219	+	testInvokeOnPool(singletonPool(), a);
1220	+	}
1221	+
1222	+	/**
1223	+	* quietlyJoin of a forked task returns when task completes
1224	+	*/
1225	+	public void testForkQuietlyJoinSingleton() {
1226	+	RecursiveAction a = new CheckedRecursiveAction() {
1227	+	protected void realCompute() {
1228	+	AsyncFib f = new AsyncFib(8);
1229	+	assertSame(f, f.fork());
1230	+	f.quietlyJoin();
1231	+	assertEquals(21, f.number);
1232	+	checkCompletedNormally(f);
1233	+	}};
1234	+	testInvokeOnPool(singletonPool(), a);
1235	+	}
1236	+
1237	+	/**
1238	+	* helpQuiesce returns when tasks are complete.
1239	+	* getQueuedTaskCount returns 0 when quiescent
1240	+	*/
1241	+	public void testForkHelpQuiesceSingleton() {
1242	+	RecursiveAction a = new CheckedRecursiveAction() {
1243	+	protected void realCompute() {
1244	+	AsyncFib f = new AsyncFib(8);
1245	+	assertSame(f, f.fork());
1246	+	helpQuiesce();
1247	+	assertEquals(0, getQueuedTaskCount());
1248	+	assertEquals(21, f.number);
1249	+	checkCompletedNormally(f);
1250	+	}};
1251	+	testInvokeOnPool(singletonPool(), a);
1252	+	}
1253	+
1254	+	/**
1255	+	* invoke task throws exception when task completes abnormally
1256	+	*/
1257	+	public void testAbnormalInvokeSingleton() {
1258	+	RecursiveAction a = new CheckedRecursiveAction() {
1259	+	protected void realCompute() {
1260	+	FailingAsyncFib f = new FailingAsyncFib(8);
1261	+	try {
1262	+	f.invoke();
1263	+	shouldThrow();
1264	+	} catch (FJException success) {
1265	+	checkCompletedAbnormally(f, success);
1266	+	}
1267	+	}};
1268	+	testInvokeOnPool(singletonPool(), a);
1269	+	}
1270	+
1271	+	/**
1272	+	* quietlyInvoke task returns when task completes abnormally
1273	+	*/
1274	+	public void testAbnormalQuietlyInvokeSingleton() {
1275	+	RecursiveAction a = new CheckedRecursiveAction() {
1276	+	protected void realCompute() {
1277	+	FailingAsyncFib f = new FailingAsyncFib(8);
1278	+	f.quietlyInvoke();
1279	+	assertTrue(f.getException() instanceof FJException);
1280	+	checkCompletedAbnormally(f, f.getException());
1281	+	}};
1282	+	testInvokeOnPool(singletonPool(), a);
1283	+	}
1284	+
1285	+	/**
1286	+	* join of a forked task throws exception when task completes abnormally
1287	+	*/
1288	+	public void testAbnormalForkJoinSingleton() {
1289	+	RecursiveAction a = new CheckedRecursiveAction() {
1290	+	protected void realCompute() {
1291	+	FailingAsyncFib f = new FailingAsyncFib(8);
1292	+	assertSame(f, f.fork());
1293	+	try {
1294	+	f.join();
1295	+	shouldThrow();
1296	+	} catch (FJException success) {
1297	+	checkCompletedAbnormally(f, success);
1298	+	}
1299	+	}};
1300	+	testInvokeOnPool(singletonPool(), a);
1301	+	}
1302	+
1303	+	/**
1304	+	* get of a forked task throws exception when task completes abnormally
1305	+	*/
1306	+	public void testAbnormalForkGetSingleton() {
1307	+	RecursiveAction a = new CheckedRecursiveAction() {
1308	+	protected void realCompute() throws Exception {
1309	+	FailingAsyncFib f = new FailingAsyncFib(8);
1310	+	assertSame(f, f.fork());
1311	+	try {
1312	+	f.get();
1313	+	shouldThrow();
1314	+	} catch (ExecutionException success) {
1315	+	Throwable cause = success.getCause();
1316	+	assertTrue(cause instanceof FJException);
1317	+	checkCompletedAbnormally(f, cause);
1318	+	}
1319	+	}};
1320	+	testInvokeOnPool(singletonPool(), a);
1321	+	}
1322	+
1323	+	/**
1324	+	* timed get of a forked task throws exception when task completes abnormally
1325	+	*/
1326	+	public void testAbnormalForkTimedGetSingleton() {
1327	+	RecursiveAction a = new CheckedRecursiveAction() {
1328	+	protected void realCompute() throws Exception {
1329	+	FailingAsyncFib f = new FailingAsyncFib(8);
1330	+	assertSame(f, f.fork());
1331	+	try {
1332	+	f.get(LONG_DELAY_MS, MILLISECONDS);
1333	+	shouldThrow();
1334	+	} catch (ExecutionException success) {
1335	+	Throwable cause = success.getCause();
1336	+	assertTrue(cause instanceof FJException);
1337	+	checkCompletedAbnormally(f, cause);
1338	+	}
1339	+	}};
1340	+	testInvokeOnPool(singletonPool(), a);
1341	+	}
1342	+
1343	+	/**
1344	+	* quietlyJoin of a forked task returns when task completes abnormally
1345	+	*/
1346	+	public void testAbnormalForkQuietlyJoinSingleton() {
1347	+	RecursiveAction a = new CheckedRecursiveAction() {
1348	+	protected void realCompute() {
1349	+	FailingAsyncFib f = new FailingAsyncFib(8);
1350	+	assertSame(f, f.fork());
1351	+	f.quietlyJoin();
1352	+	assertTrue(f.getException() instanceof FJException);
1353	+	checkCompletedAbnormally(f, f.getException());
1354	+	}};
1355	+	testInvokeOnPool(singletonPool(), a);
1356	+	}
1357	+
1358	+	/**
1359	+	* invoke task throws exception when task cancelled
1360	+	*/
1361	+	public void testCancelledInvokeSingleton() {
1362	+	RecursiveAction a = new CheckedRecursiveAction() {
1363	+	protected void realCompute() {
1364	+	AsyncFib f = new AsyncFib(8);
1365	+	assertTrue(f.cancel(true));
1366	+	try {
1367	+	f.invoke();
1368	+	shouldThrow();
1369	+	} catch (CancellationException success) {
1370	+	checkCancelled(f);
1371	+	}
1372	+	}};
1373	+	testInvokeOnPool(singletonPool(), a);
1374	+	}
1375	+
1376	+	/**
1377	+	* join of a forked task throws exception when task cancelled
1378	+	*/
1379	+	public void testCancelledForkJoinSingleton() {
1380	+	RecursiveAction a = new CheckedRecursiveAction() {
1381	+	protected void realCompute() {
1382	+	AsyncFib f = new AsyncFib(8);
1383	+	assertTrue(f.cancel(true));
1384	+	assertSame(f, f.fork());
1385	+	try {
1386	+	f.join();
1387	+	shouldThrow();
1388	+	} catch (CancellationException success) {
1389	+	checkCancelled(f);
1390	+	}
1391	+	}};
1392	+	testInvokeOnPool(singletonPool(), a);
1393	+	}
1394	+
1395	+	/**
1396	+	* get of a forked task throws exception when task cancelled
1397	+	*/
1398	+	public void testCancelledForkGetSingleton() {
1399	+	RecursiveAction a = new CheckedRecursiveAction() {
1400	+	protected void realCompute() throws Exception {
1401	+	AsyncFib f = new AsyncFib(8);
1402	+	assertTrue(f.cancel(true));
1403	+	assertSame(f, f.fork());
1404	+	try {
1405	+	f.get();
1406	+	shouldThrow();
1407	+	} catch (CancellationException success) {
1408	+	checkCancelled(f);
1409	+	}
1410	+	}};
1411	+	testInvokeOnPool(singletonPool(), a);
1412	+	}
1413	+
1414	+	/**
1415	+	* timed get of a forked task throws exception when task cancelled
1416	+	*/
1417	+	public void testCancelledForkTimedGetSingleton() throws Exception {
1418	+	RecursiveAction a = new CheckedRecursiveAction() {
1419	+	protected void realCompute() throws Exception {
1420	+	AsyncFib f = new AsyncFib(8);
1421	+	assertTrue(f.cancel(true));
1422	+	assertSame(f, f.fork());
1423	+	try {
1424	+	f.get(LONG_DELAY_MS, MILLISECONDS);
1425	+	shouldThrow();
1426	+	} catch (CancellationException success) {
1427	+	checkCancelled(f);
1428	+	}
1429	+	}};
1430	+	testInvokeOnPool(singletonPool(), a);
1431	+	}
1432	+
1433	+	/**
1434	+	* quietlyJoin of a forked task returns when task cancelled
1435	+	*/
1436	+	public void testCancelledForkQuietlyJoinSingleton() {
1437	+	RecursiveAction a = new CheckedRecursiveAction() {
1438	+	protected void realCompute() {
1439	+	AsyncFib f = new AsyncFib(8);
1440	+	assertTrue(f.cancel(true));
1441	+	assertSame(f, f.fork());
1442	+	f.quietlyJoin();
1443	+	checkCancelled(f);
1444	+	}};
1445	+	testInvokeOnPool(singletonPool(), a);
1446	+	}
1447	+
1448	+	/**
1449	+	* invoke task throws exception after invoking completeExceptionally
1450	+	*/
1451	+	public void testCompleteExceptionallySingleton() {
1452	+	RecursiveAction a = new CheckedRecursiveAction() {
1453	+	protected void realCompute() {
1454	+	AsyncFib f = new AsyncFib(8);
1455	+	f.completeExceptionally(new FJException());
1456	+	try {
1457	+	f.invoke();
1458	+	shouldThrow();
1459	+	} catch (FJException success) {
1460	+	checkCompletedAbnormally(f, success);
1461	+	}
1462	+	}};
1463	+	testInvokeOnPool(singletonPool(), a);
1464	+	}
1465	+
1466	+	/**
1467	+	* invokeAll(t1, t2) invokes all task arguments
1468	+	*/
1469	+	public void testInvokeAll2Singleton() {
1470	+	RecursiveAction a = new CheckedRecursiveAction() {
1471	+	protected void realCompute() {
1472	+	AsyncFib f = new AsyncFib(8);
1473	+	AsyncFib g = new AsyncFib(9);
1474	+	invokeAll(f, g);
1475	+	assertEquals(21, f.number);
1476	+	assertEquals(34, g.number);
1477	+	checkCompletedNormally(f);
1478	+	checkCompletedNormally(g);
1479	+	}};
1480	+	testInvokeOnPool(singletonPool(), a);
1481	+	}
1482	+
1483	+	/**
1484	+	* invokeAll(tasks) with 1 argument invokes task
1485	+	*/
1486	+	public void testInvokeAll1Singleton() {
1487	+	RecursiveAction a = new CheckedRecursiveAction() {
1488	+	protected void realCompute() {
1489	+	AsyncFib f = new AsyncFib(8);
1490	+	invokeAll(f);
1491	+	checkCompletedNormally(f);
1492	+	assertEquals(21, f.number);
1493	+	}};
1494	+	testInvokeOnPool(singletonPool(), a);
1495	+	}
1496	+
1497	+	/**
1498	+	* invokeAll(tasks) with > 2 argument invokes tasks
1499	+	*/
1500	+	public void testInvokeAll3Singleton() {
1501	+	RecursiveAction a = new CheckedRecursiveAction() {
1502	+	protected void realCompute() {
1503	+	AsyncFib f = new AsyncFib(8);
1504	+	AsyncFib g = new AsyncFib(9);
1505	+	AsyncFib h = new AsyncFib(7);
1506	+	invokeAll(f, g, h);
1507	+	assertEquals(21, f.number);
1508	+	assertEquals(34, g.number);
1509	+	assertEquals(13, h.number);
1510	+	checkCompletedNormally(f);
1511	+	checkCompletedNormally(g);
1512	+	checkCompletedNormally(h);
1513	+	}};
1514	+	testInvokeOnPool(singletonPool(), a);
1515	+	}
1516	+
1517	+	/**
1518	+	* invokeAll(collection) invokes all tasks in the collection
1519	+	*/
1520	+	public void testInvokeAllCollectionSingleton() {
1521	+	RecursiveAction a = new CheckedRecursiveAction() {
1522	+	protected void realCompute() {
1523	+	AsyncFib f = new AsyncFib(8);
1524	+	AsyncFib g = new AsyncFib(9);
1525	+	AsyncFib h = new AsyncFib(7);
1526	+	HashSet set = new HashSet();
1527	+	set.add(f);
1528	+	set.add(g);
1529	+	set.add(h);
1530	+	invokeAll(set);
1531	+	assertEquals(21, f.number);
1532	+	assertEquals(34, g.number);
1533	+	assertEquals(13, h.number);
1534	+	checkCompletedNormally(f);
1535	+	checkCompletedNormally(g);
1536	+	checkCompletedNormally(h);
1537	+	}};
1538	+	testInvokeOnPool(singletonPool(), a);
1539	+	}
1540	+
1541	+	/**
1542	+	* invokeAll(tasks) with any null task throws NPE
1543	+	*/
1544	+	public void testInvokeAllNPESingleton() {
1545	+	RecursiveAction a = new CheckedRecursiveAction() {
1546	+	protected void realCompute() {
1547	+	AsyncFib f = new AsyncFib(8);
1548	+	AsyncFib g = new AsyncFib(9);
1549	+	AsyncFib h = null;
1550	+	try {
1551	+	invokeAll(f, g, h);
1552	+	shouldThrow();
1553	+	} catch (NullPointerException success) {}
1554	+	}};
1555	+	testInvokeOnPool(singletonPool(), a);
1556	+	}
1557	+
1558	+	/**
1559	+	* invokeAll(t1, t2) throw exception if any task does
1560	+	*/
1561	+	public void testAbnormalInvokeAll2Singleton() {
1562	+	RecursiveAction a = new CheckedRecursiveAction() {
1563	+	protected void realCompute() {
1564	+	AsyncFib f = new AsyncFib(8);
1565	+	FailingAsyncFib g = new FailingAsyncFib(9);
1566	+	ForkJoinTask[] tasks = { f, g };
1567	+	shuffle(tasks);
1568	+	try {
1569	+	invokeAll(tasks);
1570	+	shouldThrow();
1571	+	} catch (FJException success) {
1572	+	checkCompletedAbnormally(g, success);
1573	+	}
1574	+	}};
1575	+	testInvokeOnPool(singletonPool(), a);
1576	+	}
1577	+
1578	+	/**
1579	+	* invokeAll(tasks) with 1 argument throws exception if task does
1580	+	*/
1581	+	public void testAbnormalInvokeAll1Singleton() {
1582	+	RecursiveAction a = new CheckedRecursiveAction() {
1583	+	protected void realCompute() {
1584	+	FailingAsyncFib g = new FailingAsyncFib(9);
1585	+	try {
1586	+	invokeAll(g);
1587	+	shouldThrow();
1588	+	} catch (FJException success) {
1589	+	checkCompletedAbnormally(g, success);
1590	+	}
1591	+	}};
1592	+	testInvokeOnPool(singletonPool(), a);
1593	+	}
1594	+
1595	+	/**
1596	+	* invokeAll(tasks) with > 2 argument throws exception if any task does
1597	+	*/
1598	+	public void testAbnormalInvokeAll3Singleton() {
1599	+	RecursiveAction a = new CheckedRecursiveAction() {
1600	+	protected void realCompute() {
1601	+	AsyncFib f = new AsyncFib(8);
1602	+	FailingAsyncFib g = new FailingAsyncFib(9);
1603	+	AsyncFib h = new AsyncFib(7);
1604	+	ForkJoinTask[] tasks = { f, g, h };
1605	+	shuffle(tasks);
1606	+	try {
1607	+	invokeAll(tasks);
1608	+	shouldThrow();
1609	+	} catch (FJException success) {
1610	+	checkCompletedAbnormally(g, success);
1611	+	}
1612	+	}};
1613	+	testInvokeOnPool(singletonPool(), a);
1614	+	}
1615	+
1616	+	/**
1617	+	* invokeAll(collection) throws exception if any task does
1618	+	*/
1619	+	public void testAbnormalInvokeAllCollectionSingleton() {
1620	+	RecursiveAction a = new CheckedRecursiveAction() {
1621	+	protected void realCompute() {
1622	+	FailingAsyncFib f = new FailingAsyncFib(8);
1623	+	AsyncFib g = new AsyncFib(9);
1624	+	AsyncFib h = new AsyncFib(7);
1625	+	ForkJoinTask[] tasks = { f, g, h };
1626	+	shuffle(tasks);
1627	+	try {
1628	+	invokeAll(Arrays.asList(tasks));
1629	+	shouldThrow();
1630	+	} catch (FJException success) {
1631	+	checkCompletedAbnormally(f, success);
1632	+	}
1633	+	}};
1634	+	testInvokeOnPool(singletonPool(), a);
1635	+	}
1636	+
1637	+	/**
1638	+	* ForkJoinTask.quietlyComplete returns when task completes
1639	+	* normally without setting a value. The most recent value
1640	+	* established by setRawResult(V) (or null by default) is returned
1641	+	* from invoke.
1642	+	*/
1643	+	public void testQuietlyComplete() {
1644	+	RecursiveAction a = new CheckedRecursiveAction() {
1645	+	protected void realCompute() {
1646	+	AsyncFib f = new AsyncFib(8);
1647	+	f.quietlyComplete();
1648	+	assertEquals(8, f.number);
1649	+	checkCompletedNormally(f);
1650	+	}};
1651	+	testInvokeOnPool(mainPool(), a);
1652	+	}
1653	+
1654		}

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