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Comparing jsr166/src/test/tck/ForkJoinTaskTest.java (file contents):
Revision 1.11 by jsr166, Sat Sep 11 07:31:52 2010 UTC vs.
Revision 1.53 by jsr166, Wed Aug 16 17:18:34 2017 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.*;
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;
6	>
7	>	import static java.util.concurrent.TimeUnit.MILLISECONDS;
8	>
9	>	import java.util.Arrays;
10	>	import java.util.HashSet;
11		import java.util.concurrent.Callable;
13	–	import java.util.concurrent.Future;
14	–	import java.util.concurrent.ExecutionException;
12		import java.util.concurrent.CancellationException;
13	<	import java.util.concurrent.RejectedExecutionException;
13	>	import java.util.concurrent.ExecutionException;
14		import java.util.concurrent.ForkJoinPool;
15		import java.util.concurrent.ForkJoinTask;
19	–	import java.util.concurrent.ForkJoinWorkerThread;
16		import java.util.concurrent.RecursiveAction;
17	<	import java.util.concurrent.RecursiveTask;
18	<	import java.util.concurrent.TimeUnit;
19	<	import junit.framework.*;
20	<	import java.util.concurrent.TimeUnit;
21	<	import java.util.concurrent.atomic.*;
26	<	import java.util.*;
17	>	import java.util.concurrent.TimeoutException;
18	>	import java.util.concurrent.atomic.AtomicIntegerFieldUpdater;
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	<	/**
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(mainPoolSize);
39	>	}
40	>
41	>	private static ForkJoinPool singletonPool() {
42	>	return new ForkJoinPool(1);
43	>	}
44	>
45	>	private static ForkJoinPool asyncSingletonPool() {
46	>	return new ForkJoinPool(1,
47	>	ForkJoinPool.defaultForkJoinWorkerThreadFactory,
48	>	null, true);
49	>	}
50	>
51	>	private void testInvokeOnPool(ForkJoinPool pool, RecursiveAction a) {
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	>
62	>	assertTrue(a.isDone());
63	>	assertTrue(a.isCompletedNormally());
64	>	assertFalse(a.isCompletedAbnormally());
65	>	assertFalse(a.isCancelled());
66	>	assertNull(a.getException());
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(randomExpiredTimeout(), randomTimeUnit());
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) < LONG_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) < LONG_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	>	assertSame(expected, a.get(randomTimeout(), randomTimeUnit()));
119	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
120	>	}
121	>
122	>	void checkCancelled(ForkJoinTask a) {
123	>	assertTrue(a.isDone());
124	>	assertTrue(a.isCancelled());
125	>	assertFalse(a.isCompletedNormally());
126	>	assertTrue(a.isCompletedAbnormally());
127	>	assertTrue(a.getException() instanceof CancellationException);
128	>	assertNull(a.getRawResult());
129	>	assertTrue(a.cancel(false));
130	>	assertTrue(a.cancel(true));
131	>
132	>	try {
133	>	Thread.currentThread().interrupt();
134	>	a.join();
135	>	shouldThrow();
136	>	} catch (CancellationException success) {
137	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
138	>	Thread.interrupted();
139	>
140	>	{
141	>	long startTime = System.nanoTime();
142	>	a.quietlyJoin();        // should be no-op
143	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
144	>	}
145	>
146	>	try {
147	>	a.get();
148	>	shouldThrow();
149	>	} catch (CancellationException success) {
150	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
151	>
152	>	try {
153	>	a.get(randomTimeout(), randomTimeUnit());
154	>	shouldThrow();
155	>	} catch (CancellationException success) {
156	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
157	>	}
158	>
159	>	void checkCompletedAbnormally(ForkJoinTask a, Throwable t) {
160	>	assertTrue(a.isDone());
161	>	assertFalse(a.isCancelled());
162	>	assertFalse(a.isCompletedNormally());
163	>	assertTrue(a.isCompletedAbnormally());
164	>	assertSame(t.getClass(), a.getException().getClass());
165	>	assertNull(a.getRawResult());
166	>	assertFalse(a.cancel(false));
167	>	assertFalse(a.cancel(true));
168	>
169	>	try {
170	>	Thread.currentThread().interrupt();
171	>	a.join();
172	>	shouldThrow();
173	>	} catch (Throwable expected) {
174	>	assertSame(t.getClass(), expected.getClass());
175	>	}
176	>	Thread.interrupted();
177	>
178	>	{
179	>	long startTime = System.nanoTime();
180	>	a.quietlyJoin();        // should be no-op
181	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
182	>	}
183	>
184	>	try {
185	>	a.get();
186	>	shouldThrow();
187	>	} catch (ExecutionException success) {
188	>	assertSame(t.getClass(), success.getCause().getClass());
189	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
190	>
191	>	try {
192	>	a.get(randomTimeout(), randomTimeUnit());
193	>	shouldThrow();
194	>	} catch (ExecutionException success) {
195	>	assertSame(t.getClass(), success.getCause().getClass());
196	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
197	>	}
198	>
199	>	/*
200		* Testing coverage notes:
201		*
202		* To test extension methods and overrides, most tests use
#	Line 42 | Line 204 | public class ForkJoinTaskTest extends JS
204		* differently than supplied Recursive forms.
205		*/
206
207	<	static final ForkJoinPool mainPool = new ForkJoinPool();
46	<	static final ForkJoinPool singletonPool = new ForkJoinPool(1);
47	<	static final ForkJoinPool asyncSingletonPool =
48	<	new ForkJoinPool(1, ForkJoinPool.defaultForkJoinWorkerThreadFactory,
49	<	null, true);
50	<	static final class FJException extends RuntimeException {
207	>	public static final class FJException extends RuntimeException {
208		FJException() { super(); }
209		}
210
211	<	static abstract class BinaryAsyncAction extends ForkJoinTask<Void> {
211	>	abstract static class BinaryAsyncAction extends ForkJoinTask<Void> {
212		private volatile int controlState;
213
214		static final AtomicIntegerFieldUpdater<BinaryAsyncAction> controlStateUpdater =
215		AtomicIntegerFieldUpdater.newUpdater(BinaryAsyncAction.class,
216		"controlState");
217
218	<	private BinaryAsyncAction parent;
218	>	private volatile BinaryAsyncAction parent;
219
220	<	private BinaryAsyncAction sibling;
220	>	private volatile BinaryAsyncAction sibling;
221
222		protected BinaryAsyncAction() {
223		}
#	Line 95 | Line 252 | public class ForkJoinTaskTest extends JS
252		super.completeExceptionally(ex);
253		}
254
255	+	public boolean cancel(boolean mayInterruptIfRunning) {
256	+	if (super.cancel(mayInterruptIfRunning)) {
257	+	completeExceptionally(new FJException());
258	+	return true;
259	+	}
260	+	return false;
261	+	}
262	+
263		public final void complete() {
264		BinaryAsyncAction a = this;
265		for (;;) {
#	Line 116 | Line 281 | public class ForkJoinTaskTest extends JS
281		}
282
283		public final void completeExceptionally(Throwable ex) {
284	<	BinaryAsyncAction a = this;
120	<	while (!a.isCompletedAbnormally()) {
284	>	for (BinaryAsyncAction a = this;;) {
285		a.completeThisExceptionally(ex);
286		BinaryAsyncAction s = a.sibling;
287	<	if (s != null)
288	<	s.cancel(false);
289	<	if (!a.onException() || (a = a.parent) == null)
287	>	if (s != null && !s.isDone())
288	>	s.completeExceptionally(ex);
289	>	if ((a = a.parent) == null)
290		break;
291		}
292		}
#	Line 172 | Line 336 | public class ForkJoinTaskTest extends JS
336		public final boolean exec() {
337		AsyncFib f = this;
338		int n = f.number;
339	<	if (n > 1) {
340	<	while (n > 1) {
341	<	AsyncFib p = f;
342	<	AsyncFib r = new AsyncFib(n - 2);
343	<	f = new AsyncFib(--n);
344	<	p.linkSubtasks(r, f);
181	<	r.fork();
182	<	}
183	<	f.number = n;
339	>	while (n > 1) {
340	>	AsyncFib p = f;
341	>	AsyncFib r = new AsyncFib(n - 2);
342	>	f = new AsyncFib(--n);
343	>	p.linkSubtasks(r, f);
344	>	r.fork();
345		}
346		f.complete();
347		return false;
#	Line 191 | Line 352 | public class ForkJoinTaskTest extends JS
352		}
353		}
354
194	–
355		static final class FailingAsyncFib extends BinaryAsyncAction {
356		int number;
357		public FailingAsyncFib(int n) {
#	Line 201 | Line 361 | public class ForkJoinTaskTest extends JS
361		public final boolean exec() {
362		FailingAsyncFib f = this;
363		int n = f.number;
364	<	if (n > 1) {
365	<	while (n > 1) {
366	<	FailingAsyncFib p = f;
367	<	FailingAsyncFib r = new FailingAsyncFib(n - 2);
368	<	f = new FailingAsyncFib(--n);
369	<	p.linkSubtasks(r, f);
210	<	r.fork();
211	<	}
212	<	f.number = n;
364	>	while (n > 1) {
365	>	FailingAsyncFib p = f;
366	>	FailingAsyncFib r = new FailingAsyncFib(n - 2);
367	>	f = new FailingAsyncFib(--n);
368	>	p.linkSubtasks(r, f);
369	>	r.fork();
370		}
371		f.complete();
372		return false;
#	Line 223 | Line 380 | public class ForkJoinTaskTest extends JS
380		/**
381		* invoke returns when task completes normally.
382		* isCompletedAbnormally and isCancelled return false for normally
383	<	* completed tasks. getRawResult of a RecursiveAction returns null;
383	>	* completed tasks; getRawResult returns null.
384		*/
385		public void testInvoke() {
386	<	RecursiveAction a = new RecursiveAction() {
387	<	public void compute() {
388	<	AsyncFib f = new AsyncFib(8);
389	<	f.invoke();
390	<	threadAssertTrue(f.number == 21);
391	<	threadAssertTrue(f.isDone());
392	<	threadAssertFalse(f.isCancelled());
393	<	threadAssertFalse(f.isCompletedAbnormally());
237	<	threadAssertTrue(f.getRawResult() == null);
238	<	}
239	<	};
240	<	mainPool.invoke(a);
386	>	RecursiveAction a = new CheckedRecursiveAction() {
387	>	protected void realCompute() {
388	>	AsyncFib f = new AsyncFib(8);
389	>	assertNull(f.invoke());
390	>	assertEquals(21, f.number);
391	>	checkCompletedNormally(f);
392	>	}};
393	>	testInvokeOnPool(mainPool(), a);
394		}
395
396		/**
#	Line 246 | Line 399 | public class ForkJoinTaskTest extends JS
399		* completed tasks
400		*/
401		public void testQuietlyInvoke() {
402	<	RecursiveAction a = new RecursiveAction() {
403	<	public void compute() {
404	<	AsyncFib f = new AsyncFib(8);
405	<	f.quietlyInvoke();
406	<	threadAssertTrue(f.number == 21);
407	<	threadAssertTrue(f.isDone());
408	<	threadAssertFalse(f.isCancelled());
409	<	threadAssertFalse(f.isCompletedAbnormally());
257	<	threadAssertTrue(f.getRawResult() == null);
258	<	}
259	<	};
260	<	mainPool.invoke(a);
402	>	RecursiveAction a = new CheckedRecursiveAction() {
403	>	protected void realCompute() {
404	>	AsyncFib f = new AsyncFib(8);
405	>	f.quietlyInvoke();
406	>	assertEquals(21, f.number);
407	>	checkCompletedNormally(f);
408	>	}};
409	>	testInvokeOnPool(mainPool(), a);
410		}
411
412		/**
413		* join of a forked task returns when task completes
414		*/
415		public void testForkJoin() {
416	<	RecursiveAction a = new RecursiveAction() {
417	<	public void compute() {
418	<	AsyncFib f = new AsyncFib(8);
419	<	f.fork();
420	<	f.join();
421	<	threadAssertTrue(f.number == 21);
422	<	threadAssertTrue(f.isDone());
423	<	threadAssertTrue(f.getRawResult() == null);
424	<	}
276	<	};
277	<	mainPool.invoke(a);
416	>	RecursiveAction a = new CheckedRecursiveAction() {
417	>	protected void realCompute() {
418	>	AsyncFib f = new AsyncFib(8);
419	>	assertSame(f, f.fork());
420	>	assertNull(f.join());
421	>	assertEquals(21, f.number);
422	>	checkCompletedNormally(f);
423	>	}};
424	>	testInvokeOnPool(mainPool(), a);
425		}
426
427		/**
428		* get of a forked task returns when task completes
429		*/
430		public void testForkGet() {
431	<	RecursiveAction a = new RecursiveAction() {
432	<	public void compute() {
433	<	try {
434	<	AsyncFib f = new AsyncFib(8);
435	<	f.fork();
436	<	f.get();
437	<	threadAssertTrue(f.number == 21);
438	<	threadAssertTrue(f.isDone());
439	<	} catch (Exception ex) {
293	<	unexpectedException(ex);
294	<	}
295	<	}
296	<	};
297	<	mainPool.invoke(a);
431	>	RecursiveAction a = new CheckedRecursiveAction() {
432	>	protected void realCompute() throws Exception {
433	>	AsyncFib f = new AsyncFib(8);
434	>	assertSame(f, f.fork());
435	>	assertNull(f.get());
436	>	assertEquals(21, f.number);
437	>	checkCompletedNormally(f);
438	>	}};
439	>	testInvokeOnPool(mainPool(), a);
440		}
441
442		/**
443		* timed get of a forked task returns when task completes
444		*/
445		public void testForkTimedGet() {
446	<	RecursiveAction a = new RecursiveAction() {
447	<	public void compute() {
448	<	try {
449	<	AsyncFib f = new AsyncFib(8);
450	<	f.fork();
451	<	f.get(LONG_DELAY_MS, TimeUnit.MILLISECONDS);
452	<	threadAssertTrue(f.number == 21);
453	<	threadAssertTrue(f.isDone());
454	<	} catch (Exception ex) {
313	<	unexpectedException(ex);
314	<	}
315	<	}
316	<	};
317	<	mainPool.invoke(a);
446	>	RecursiveAction a = new CheckedRecursiveAction() {
447	>	protected void realCompute() throws Exception {
448	>	AsyncFib f = new AsyncFib(8);
449	>	assertSame(f, f.fork());
450	>	assertNull(f.get(LONG_DELAY_MS, MILLISECONDS));
451	>	assertEquals(21, f.number);
452	>	checkCompletedNormally(f);
453	>	}};
454	>	testInvokeOnPool(mainPool(), a);
455		}
456
457		/**
458		* timed get with null time unit throws NPE
459		*/
460		public void testForkTimedGetNPE() {
461	<	RecursiveAction a = new RecursiveAction() {
462	<	public void compute() {
463	<	try {
464	<	AsyncFib f = new AsyncFib(8);
465	<	f.fork();
466	<	f.get(5L, null);
467	<	shouldThrow();
468	<	} catch (NullPointerException success) {
469	<	} catch (Exception ex) {
470	<	unexpectedException(ex);
334	<	}
335	<	}
336	<	};
337	<	mainPool.invoke(a);
461	>	RecursiveAction a = new CheckedRecursiveAction() {
462	>	protected void realCompute() throws Exception {
463	>	AsyncFib f = new AsyncFib(8);
464	>	assertSame(f, f.fork());
465	>	try {
466	>	f.get(randomTimeout(), null);
467	>	shouldThrow();
468	>	} catch (NullPointerException success) {}
469	>	}};
470	>	testInvokeOnPool(mainPool(), a);
471		}
472
473		/**
474		* quietlyJoin of a forked task returns when task completes
475		*/
476		public void testForkQuietlyJoin() {
477	<	RecursiveAction a = new RecursiveAction() {
478	<	public void compute() {
479	<	AsyncFib f = new AsyncFib(8);
480	<	f.fork();
481	<	f.quietlyJoin();
482	<	threadAssertTrue(f.number == 21);
483	<	threadAssertTrue(f.isDone());
484	<	}
485	<	};
353	<	mainPool.invoke(a);
477	>	RecursiveAction a = new CheckedRecursiveAction() {
478	>	protected void realCompute() {
479	>	AsyncFib f = new AsyncFib(8);
480	>	assertSame(f, f.fork());
481	>	f.quietlyJoin();
482	>	assertEquals(21, f.number);
483	>	checkCompletedNormally(f);
484	>	}};
485	>	testInvokeOnPool(mainPool(), a);
486		}
487
356	–
488		/**
489		* helpQuiesce returns when tasks are complete.
490		* getQueuedTaskCount returns 0 when quiescent
491		*/
492		public void testForkHelpQuiesce() {
493	<	RecursiveAction a = new RecursiveAction() {
494	<	public void compute() {
495	<	AsyncFib f = new AsyncFib(8);
496	<	f.fork();
497	<	f.helpQuiesce();
498	<	threadAssertTrue(f.number == 21);
499	<	threadAssertTrue(f.isDone());
500	<	threadAssertTrue(getQueuedTaskCount() == 0);
501	<	}
502	<	};
372	<	mainPool.invoke(a);
493	>	RecursiveAction a = new CheckedRecursiveAction() {
494	>	protected void realCompute() {
495	>	AsyncFib f = new AsyncFib(8);
496	>	assertSame(f, f.fork());
497	>	helpQuiesce();
498	>	assertEquals(21, f.number);
499	>	assertEquals(0, getQueuedTaskCount());
500	>	checkCompletedNormally(f);
501	>	}};
502	>	testInvokeOnPool(mainPool(), a);
503		}
504
375	–
505		/**
506		* invoke task throws exception when task completes abnormally
507		*/
508		public void testAbnormalInvoke() {
509	<	RecursiveAction a = new RecursiveAction() {
510	<	public void compute() {
511	<	try {
512	<	FailingAsyncFib f = new FailingAsyncFib(8);
513	<	f.invoke();
514	<	shouldThrow();
515	<	} catch (FJException success) {
516	<	}
509	>	RecursiveAction a = new CheckedRecursiveAction() {
510	>	protected void realCompute() {
511	>	FailingAsyncFib f = new FailingAsyncFib(8);
512	>	try {
513	>	f.invoke();
514	>	shouldThrow();
515	>	} catch (FJException success) {
516	>	checkCompletedAbnormally(f, success);
517		}
518	<	};
519	<	mainPool.invoke(a);
518	>	}};
519	>	testInvokeOnPool(mainPool(), a);
520		}
521
522		/**
523		* quietlyInvoke task returns when task completes abnormally
524		*/
525		public void testAbnormalQuietlyInvoke() {
526	<	RecursiveAction a = new RecursiveAction() {
527	<	public void compute() {
528	<	FailingAsyncFib f = new FailingAsyncFib(8);
529	<	f.quietlyInvoke();
530	<	threadAssertTrue(f.isDone());
531	<	}
532	<	};
533	<	mainPool.invoke(a);
526	>	RecursiveAction a = new CheckedRecursiveAction() {
527	>	protected void realCompute() {
528	>	FailingAsyncFib f = new FailingAsyncFib(8);
529	>	f.quietlyInvoke();
530	>	assertTrue(f.getException() instanceof FJException);
531	>	checkCompletedAbnormally(f, f.getException());
532	>	}};
533	>	testInvokeOnPool(mainPool(), a);
534		}
535
536		/**
537		* join of a forked task throws exception when task completes abnormally
538		*/
539		public void testAbnormalForkJoin() {
540	<	RecursiveAction a = new RecursiveAction() {
541	<	public void compute() {
542	<	try {
543	<	FailingAsyncFib f = new FailingAsyncFib(8);
544	<	f.fork();
545	<	f.join();
546	<	shouldThrow();
547	<	} catch (FJException success) {
548	<	}
540	>	RecursiveAction a = new CheckedRecursiveAction() {
541	>	protected void realCompute() {
542	>	FailingAsyncFib f = new FailingAsyncFib(8);
543	>	assertSame(f, f.fork());
544	>	try {
545	>	f.join();
546	>	shouldThrow();
547	>	} catch (FJException success) {
548	>	checkCompletedAbnormally(f, success);
549		}
550	<	};
551	<	mainPool.invoke(a);
550	>	}};
551	>	testInvokeOnPool(mainPool(), a);
552		}
553
554		/**
555		* get of a forked task throws exception when task completes abnormally
556		*/
557		public void testAbnormalForkGet() {
558	<	RecursiveAction a = new RecursiveAction() {
559	<	public void compute() {
560	<	try {
561	<	FailingAsyncFib f = new FailingAsyncFib(8);
562	<	f.fork();
563	<	f.get();
564	<	shouldThrow();
565	<	} catch (ExecutionException success) {
566	<	} catch (Exception ex) {
567	<	unexpectedException(ex);
568	<	}
558	>	RecursiveAction a = new CheckedRecursiveAction() {
559	>	protected void realCompute() throws Exception {
560	>	FailingAsyncFib f = new FailingAsyncFib(8);
561	>	assertSame(f, f.fork());
562	>	try {
563	>	f.get();
564	>	shouldThrow();
565	>	} catch (ExecutionException success) {
566	>	Throwable cause = success.getCause();
567	>	assertTrue(cause instanceof FJException);
568	>	checkCompletedAbnormally(f, cause);
569		}
570	<	};
571	<	mainPool.invoke(a);
570	>	}};
571	>	testInvokeOnPool(mainPool(), a);
572		}
573
574		/**
575		* timed get of a forked task throws exception when task completes abnormally
576		*/
577		public void testAbnormalForkTimedGet() {
578	<	RecursiveAction a = new RecursiveAction() {
579	<	public void compute() {
580	<	try {
581	<	FailingAsyncFib f = new FailingAsyncFib(8);
582	<	f.fork();
583	<	f.get(LONG_DELAY_MS, TimeUnit.MILLISECONDS);
584	<	shouldThrow();
585	<	} catch (ExecutionException success) {
586	<	} catch (Exception ex) {
587	<	unexpectedException(ex);
588	<	}
578	>	RecursiveAction a = new CheckedRecursiveAction() {
579	>	protected void realCompute() throws Exception {
580	>	FailingAsyncFib f = new FailingAsyncFib(8);
581	>	assertSame(f, f.fork());
582	>	try {
583	>	f.get(LONG_DELAY_MS, MILLISECONDS);
584	>	shouldThrow();
585	>	} catch (ExecutionException success) {
586	>	Throwable cause = success.getCause();
587	>	assertTrue(cause instanceof FJException);
588	>	checkCompletedAbnormally(f, cause);
589		}
590	<	};
591	<	mainPool.invoke(a);
590	>	}};
591	>	testInvokeOnPool(mainPool(), a);
592		}
593
594		/**
595		* quietlyJoin of a forked task returns when task completes abnormally
596		*/
597		public void testAbnormalForkQuietlyJoin() {
598	<	RecursiveAction a = new RecursiveAction() {
599	<	public void compute() {
600	<	FailingAsyncFib f = new FailingAsyncFib(8);
601	<	f.fork();
602	<	f.quietlyJoin();
603	<	threadAssertTrue(f.isDone());
604	<	threadAssertTrue(f.isCompletedAbnormally());
605	<	threadAssertTrue(f.getException() instanceof FJException);
606	<	}
478	<	};
479	<	mainPool.invoke(a);
598	>	RecursiveAction a = new CheckedRecursiveAction() {
599	>	protected void realCompute() {
600	>	FailingAsyncFib f = new FailingAsyncFib(8);
601	>	assertSame(f, f.fork());
602	>	f.quietlyJoin();
603	>	assertTrue(f.getException() instanceof FJException);
604	>	checkCompletedAbnormally(f, f.getException());
605	>	}};
606	>	testInvokeOnPool(mainPool(), a);
607		}
608
609		/**
610		* invoke task throws exception when task cancelled
611		*/
612		public void testCancelledInvoke() {
613	<	RecursiveAction a = new RecursiveAction() {
614	<	public void compute() {
615	<	try {
616	<	AsyncFib f = new AsyncFib(8);
617	<	f.cancel(true);
618	<	f.invoke();
619	<	shouldThrow();
620	<	} catch (CancellationException success) {
621	<	}
613	>	RecursiveAction a = new CheckedRecursiveAction() {
614	>	protected void realCompute() {
615	>	AsyncFib f = new AsyncFib(8);
616	>	assertTrue(f.cancel(true));
617	>	try {
618	>	f.invoke();
619	>	shouldThrow();
620	>	} catch (CancellationException success) {
621	>	checkCancelled(f);
622		}
623	<	};
624	<	mainPool.invoke(a);
623	>	}};
624	>	testInvokeOnPool(mainPool(), a);
625		}
626
627		/**
628		* join of a forked task throws exception when task cancelled
629		*/
630		public void testCancelledForkJoin() {
631	<	RecursiveAction a = new RecursiveAction() {
632	<	public void compute() {
633	<	try {
634	<	AsyncFib f = new AsyncFib(8);
635	<	f.cancel(true);
636	<	f.fork();
637	<	f.join();
638	<	shouldThrow();
639	<	} catch (CancellationException success) {
640	<	}
631	>	RecursiveAction a = new CheckedRecursiveAction() {
632	>	protected void realCompute() {
633	>	AsyncFib f = new AsyncFib(8);
634	>	assertTrue(f.cancel(true));
635	>	assertSame(f, f.fork());
636	>	try {
637	>	f.join();
638	>	shouldThrow();
639	>	} catch (CancellationException success) {
640	>	checkCancelled(f);
641		}
642	<	};
643	<	mainPool.invoke(a);
642	>	}};
643	>	testInvokeOnPool(mainPool(), a);
644		}
645
646		/**
647		* get of a forked task throws exception when task cancelled
648		*/
649		public void testCancelledForkGet() {
650	<	RecursiveAction a = new RecursiveAction() {
651	<	public void compute() {
652	<	try {
653	<	AsyncFib f = new AsyncFib(8);
654	<	f.cancel(true);
655	<	f.fork();
656	<	f.get();
657	<	shouldThrow();
658	<	} catch (CancellationException success) {
659	<	} catch (Exception ex) {
533	<	unexpectedException(ex);
534	<	}
650	>	RecursiveAction a = new CheckedRecursiveAction() {
651	>	protected void realCompute() throws Exception {
652	>	AsyncFib f = new AsyncFib(8);
653	>	assertTrue(f.cancel(true));
654	>	assertSame(f, f.fork());
655	>	try {
656	>	f.get();
657	>	shouldThrow();
658	>	} catch (CancellationException success) {
659	>	checkCancelled(f);
660		}
661	<	};
662	<	mainPool.invoke(a);
661	>	}};
662	>	testInvokeOnPool(mainPool(), a);
663		}
664
665		/**
666		* timed get of a forked task throws exception when task cancelled
667		*/
668	<	public void testCancelledForkTimedGet() {
669	<	RecursiveAction a = new RecursiveAction() {
670	<	public void compute() {
671	<	try {
672	<	AsyncFib f = new AsyncFib(8);
673	<	f.cancel(true);
674	<	f.fork();
675	<	f.get(LONG_DELAY_MS, TimeUnit.MILLISECONDS);
676	<	shouldThrow();
677	<	} catch (CancellationException success) {
678	<	} catch (Exception ex) {
554	<	unexpectedException(ex);
555	<	}
668	>	public void testCancelledForkTimedGet() throws Exception {
669	>	RecursiveAction a = new CheckedRecursiveAction() {
670	>	protected void realCompute() throws Exception {
671	>	AsyncFib f = new AsyncFib(8);
672	>	assertTrue(f.cancel(true));
673	>	assertSame(f, f.fork());
674	>	try {
675	>	f.get(LONG_DELAY_MS, MILLISECONDS);
676	>	shouldThrow();
677	>	} catch (CancellationException success) {
678	>	checkCancelled(f);
679		}
680	<	};
681	<	mainPool.invoke(a);
680	>	}};
681	>	testInvokeOnPool(mainPool(), a);
682		}
683
684		/**
685		* quietlyJoin of a forked task returns when task cancelled
686		*/
687		public void testCancelledForkQuietlyJoin() {
688	<	RecursiveAction a = new RecursiveAction() {
689	<	public void compute() {
690	<	AsyncFib f = new AsyncFib(8);
691	<	f.cancel(true);
692	<	f.fork();
693	<	f.quietlyJoin();
694	<	threadAssertTrue(f.isDone());
695	<	threadAssertTrue(f.isCompletedAbnormally());
696	<	threadAssertTrue(f.getException() instanceof CancellationException);
574	<	}
575	<	};
576	<	mainPool.invoke(a);
688	>	RecursiveAction a = new CheckedRecursiveAction() {
689	>	protected void realCompute() {
690	>	AsyncFib f = new AsyncFib(8);
691	>	assertTrue(f.cancel(true));
692	>	assertSame(f, f.fork());
693	>	f.quietlyJoin();
694	>	checkCancelled(f);
695	>	}};
696	>	testInvokeOnPool(mainPool(), a);
697		}
698
699		/**
700		* getPool of executing task returns its pool
701		*/
702		public void testGetPool() {
703	<	RecursiveAction a = new RecursiveAction() {
704	<	public void compute() {
705	<	threadAssertTrue(getPool() == mainPool);
706	<	}
707	<	};
708	<	mainPool.invoke(a);
703	>	final ForkJoinPool mainPool = mainPool();
704	>	RecursiveAction a = new CheckedRecursiveAction() {
705	>	protected void realCompute() {
706	>	assertSame(mainPool, getPool());
707	>	}};
708	>	testInvokeOnPool(mainPool, a);
709		}
710
711		/**
712		* getPool of non-FJ task returns null
713		*/
714		public void testGetPool2() {
715	<	RecursiveAction a = new RecursiveAction() {
716	<	public void compute() {
717	<	threadAssertTrue(getPool() == null);
718	<	}
719	<	};
600	<	a.invoke();
715	>	RecursiveAction a = new CheckedRecursiveAction() {
716	>	protected void realCompute() {
717	>	assertNull(getPool());
718	>	}};
719	>	assertNull(a.invoke());
720		}
721
722		/**
723		* inForkJoinPool of executing task returns true
724		*/
725		public void testInForkJoinPool() {
726	<	RecursiveAction a = new RecursiveAction() {
727	<	public void compute() {
728	<	threadAssertTrue(inForkJoinPool());
729	<	}
730	<	};
612	<	mainPool.invoke(a);
726	>	RecursiveAction a = new CheckedRecursiveAction() {
727	>	protected void realCompute() {
728	>	assertTrue(inForkJoinPool());
729	>	}};
730	>	testInvokeOnPool(mainPool(), a);
731		}
732
733		/**
734		* inForkJoinPool of non-FJ task returns false
735		*/
736		public void testInForkJoinPool2() {
737	<	RecursiveAction a = new RecursiveAction() {
738	<	public void compute() {
739	<	threadAssertTrue(!inForkJoinPool());
740	<	}
741	<	};
624	<	a.invoke();
737	>	RecursiveAction a = new CheckedRecursiveAction() {
738	>	protected void realCompute() {
739	>	assertFalse(inForkJoinPool());
740	>	}};
741	>	assertNull(a.invoke());
742		}
743
744		/**
745		* setRawResult(null) succeeds
746		*/
747		public void testSetRawResult() {
748	<	RecursiveAction a = new RecursiveAction() {
749	<	public void compute() {
750	<	setRawResult(null);
751	<	}
752	<	};
753	<	a.invoke();
748	>	RecursiveAction a = new CheckedRecursiveAction() {
749	>	protected void realCompute() {
750	>	setRawResult(null);
751	>	assertNull(getRawResult());
752	>	}};
753	>	assertNull(a.invoke());
754		}
755
756		/**
757		* invoke task throws exception after invoking completeExceptionally
758		*/
759		public void testCompleteExceptionally() {
760	<	RecursiveAction a = new RecursiveAction() {
761	<	public void compute() {
762	<	try {
763	<	AsyncFib f = new AsyncFib(8);
764	<	f.completeExceptionally(new FJException());
765	<	f.invoke();
766	<	shouldThrow();
767	<	} catch (FJException success) {
768	<	}
760	>	RecursiveAction a = new CheckedRecursiveAction() {
761	>	protected void realCompute() {
762	>	AsyncFib f = new AsyncFib(8);
763	>	f.completeExceptionally(new FJException());
764	>	try {
765	>	f.invoke();
766	>	shouldThrow();
767	>	} catch (FJException success) {
768	>	checkCompletedAbnormally(f, success);
769		}
770	<	};
771	<	mainPool.invoke(a);
770	>	}};
771	>	testInvokeOnPool(mainPool(), a);
772	>	}
773	>
774	>	/**
775	>	* completeExceptionally(null) surprisingly has the same effect as
776	>	* completeExceptionally(new RuntimeException())
777	>	*/
778	>	public void testCompleteExceptionally_null() {
779	>	RecursiveAction a = new CheckedRecursiveAction() {
780	>	protected void realCompute() {
781	>	AsyncFib f = new AsyncFib(8);
782	>	f.completeExceptionally(null);
783	>	try {
784	>	f.invoke();
785	>	shouldThrow();
786	>	} catch (RuntimeException success) {
787	>	assertSame(success.getClass(), RuntimeException.class);
788	>	assertNull(success.getCause());
789	>	checkCompletedAbnormally(f, success);
790	>	}
791	>	}};
792	>	testInvokeOnPool(mainPool(), a);
793		}
794
795		/**
796		* invokeAll(t1, t2) invokes all task arguments
797		*/
798		public void testInvokeAll2() {
799	<	RecursiveAction a = new RecursiveAction() {
800	<	public void compute() {
801	<	AsyncFib f = new AsyncFib(8);
802	<	AsyncFib g = new AsyncFib(9);
803	<	invokeAll(f, g);
804	<	threadAssertTrue(f.isDone());
805	<	threadAssertTrue(f.number == 21);
806	<	threadAssertTrue(g.isDone());
807	<	threadAssertTrue(g.number == 34);
808	<	}
809	<	};
672	<	mainPool.invoke(a);
799	>	RecursiveAction a = new CheckedRecursiveAction() {
800	>	protected void realCompute() {
801	>	AsyncFib f = new AsyncFib(8);
802	>	AsyncFib g = new AsyncFib(9);
803	>	invokeAll(f, g);
804	>	assertEquals(21, f.number);
805	>	assertEquals(34, g.number);
806	>	checkCompletedNormally(f);
807	>	checkCompletedNormally(g);
808	>	}};
809	>	testInvokeOnPool(mainPool(), a);
810		}
811
812		/**
813		* invokeAll(tasks) with 1 argument invokes task
814		*/
815		public void testInvokeAll1() {
816	<	RecursiveAction a = new RecursiveAction() {
817	<	public void compute() {
818	<	AsyncFib f = new AsyncFib(8);
819	<	invokeAll(f);
820	<	threadAssertTrue(f.isDone());
821	<	threadAssertTrue(f.number == 21);
822	<	}
823	<	};
687	<	mainPool.invoke(a);
816	>	RecursiveAction a = new CheckedRecursiveAction() {
817	>	protected void realCompute() {
818	>	AsyncFib f = new AsyncFib(8);
819	>	invokeAll(f);
820	>	checkCompletedNormally(f);
821	>	assertEquals(21, f.number);
822	>	}};
823	>	testInvokeOnPool(mainPool(), a);
824		}
825
826		/**
827		* invokeAll(tasks) with > 2 argument invokes tasks
828		*/
829		public void testInvokeAll3() {
830	<	RecursiveAction a = new RecursiveAction() {
831	<	public void compute() {
832	<	AsyncFib f = new AsyncFib(8);
833	<	AsyncFib g = new AsyncFib(9);
834	<	AsyncFib h = new AsyncFib(7);
835	<	invokeAll(f, g, h);
836	<	threadAssertTrue(f.isDone());
837	<	threadAssertTrue(f.number == 21);
838	<	threadAssertTrue(g.isDone());
839	<	threadAssertTrue(g.number == 34);
840	<	threadAssertTrue(h.isDone());
841	<	threadAssertTrue(h.number == 13);
842	<	}
843	<	};
708	<	mainPool.invoke(a);
830	>	RecursiveAction a = new CheckedRecursiveAction() {
831	>	protected void realCompute() {
832	>	AsyncFib f = new AsyncFib(8);
833	>	AsyncFib g = new AsyncFib(9);
834	>	AsyncFib h = new AsyncFib(7);
835	>	invokeAll(f, g, h);
836	>	assertEquals(21, f.number);
837	>	assertEquals(34, g.number);
838	>	assertEquals(13, h.number);
839	>	checkCompletedNormally(f);
840	>	checkCompletedNormally(g);
841	>	checkCompletedNormally(h);
842	>	}};
843	>	testInvokeOnPool(mainPool(), a);
844		}
845
846		/**
847		* invokeAll(collection) invokes all tasks in the collection
848		*/
849		public void testInvokeAllCollection() {
850	<	RecursiveAction a = new RecursiveAction() {
851	<	public void compute() {
852	<	AsyncFib f = new AsyncFib(8);
853	<	AsyncFib g = new AsyncFib(9);
854	<	AsyncFib h = new AsyncFib(7);
855	<	HashSet set = new HashSet();
856	<	set.add(f);
857	<	set.add(g);
858	<	set.add(h);
859	<	invokeAll(set);
860	<	threadAssertTrue(f.isDone());
861	<	threadAssertTrue(f.number == 21);
862	<	threadAssertTrue(g.isDone());
863	<	threadAssertTrue(g.number == 34);
864	<	threadAssertTrue(h.isDone());
865	<	threadAssertTrue(h.number == 13);
866	<	}
867	<	};
733	<	mainPool.invoke(a);
850	>	RecursiveAction a = new CheckedRecursiveAction() {
851	>	protected void realCompute() {
852	>	AsyncFib f = new AsyncFib(8);
853	>	AsyncFib g = new AsyncFib(9);
854	>	AsyncFib h = new AsyncFib(7);
855	>	HashSet set = new HashSet();
856	>	set.add(f);
857	>	set.add(g);
858	>	set.add(h);
859	>	invokeAll(set);
860	>	assertEquals(21, f.number);
861	>	assertEquals(34, g.number);
862	>	assertEquals(13, h.number);
863	>	checkCompletedNormally(f);
864	>	checkCompletedNormally(g);
865	>	checkCompletedNormally(h);
866	>	}};
867	>	testInvokeOnPool(mainPool(), a);
868		}
869
736	–
870		/**
871		* invokeAll(tasks) with any null task throws NPE
872		*/
873		public void testInvokeAllNPE() {
874	<	RecursiveAction a = new RecursiveAction() {
875	<	public void compute() {
876	<	try {
877	<	AsyncFib f = new AsyncFib(8);
878	<	AsyncFib g = new AsyncFib(9);
879	<	AsyncFib h = null;
880	<	invokeAll(f, g, h);
881	<	shouldThrow();
882	<	} catch (NullPointerException success) {
883	<	}
884	<	}
752	<	};
753	<	mainPool.invoke(a);
874	>	RecursiveAction a = new CheckedRecursiveAction() {
875	>	protected void realCompute() {
876	>	AsyncFib f = new AsyncFib(8);
877	>	AsyncFib g = new AsyncFib(9);
878	>	AsyncFib h = null;
879	>	try {
880	>	invokeAll(f, g, h);
881	>	shouldThrow();
882	>	} catch (NullPointerException success) {}
883	>	}};
884	>	testInvokeOnPool(mainPool(), a);
885		}
886
887		/**
888		* invokeAll(t1, t2) throw exception if any task does
889		*/
890		public void testAbnormalInvokeAll2() {
891	<	RecursiveAction a = new RecursiveAction() {
892	<	public void compute() {
893	<	try {
894	<	AsyncFib f = new AsyncFib(8);
895	<	FailingAsyncFib g = new FailingAsyncFib(9);
896	<	invokeAll(f, g);
897	<	shouldThrow();
898	<	} catch (FJException success) {
899	<	}
891	>	RecursiveAction a = new CheckedRecursiveAction() {
892	>	protected void realCompute() {
893	>	AsyncFib f = new AsyncFib(8);
894	>	FailingAsyncFib g = new FailingAsyncFib(9);
895	>	ForkJoinTask[] tasks = { f, g };
896	>	shuffle(tasks);
897	>	try {
898	>	invokeAll(tasks);
899	>	shouldThrow();
900	>	} catch (FJException success) {
901	>	checkCompletedAbnormally(g, success);
902		}
903	<	};
904	<	mainPool.invoke(a);
903	>	}};
904	>	testInvokeOnPool(mainPool(), a);
905		}
906
907		/**
908		* invokeAll(tasks) with 1 argument throws exception if task does
909		*/
910		public void testAbnormalInvokeAll1() {
911	<	RecursiveAction a = new RecursiveAction() {
912	<	public void compute() {
913	<	try {
914	<	FailingAsyncFib g = new FailingAsyncFib(9);
915	<	invokeAll(g);
916	<	shouldThrow();
917	<	} catch (FJException success) {
918	<	}
911	>	RecursiveAction a = new CheckedRecursiveAction() {
912	>	protected void realCompute() {
913	>	FailingAsyncFib g = new FailingAsyncFib(9);
914	>	try {
915	>	invokeAll(g);
916	>	shouldThrow();
917	>	} catch (FJException success) {
918	>	checkCompletedAbnormally(g, success);
919		}
920	<	};
921	<	mainPool.invoke(a);
920	>	}};
921	>	testInvokeOnPool(mainPool(), a);
922		}
923
924		/**
925		* invokeAll(tasks) with > 2 argument throws exception if any task does
926		*/
927		public void testAbnormalInvokeAll3() {
928	<	RecursiveAction a = new RecursiveAction() {
929	<	public void compute() {
930	<	try {
931	<	AsyncFib f = new AsyncFib(8);
932	<	FailingAsyncFib g = new FailingAsyncFib(9);
933	<	AsyncFib h = new AsyncFib(7);
934	<	invokeAll(f, g, h);
935	<	shouldThrow();
936	<	} catch (FJException success) {
937	<	}
928	>	RecursiveAction a = new CheckedRecursiveAction() {
929	>	protected void realCompute() {
930	>	AsyncFib f = new AsyncFib(8);
931	>	FailingAsyncFib g = new FailingAsyncFib(9);
932	>	AsyncFib h = new AsyncFib(7);
933	>	ForkJoinTask[] tasks = { f, g, h };
934	>	shuffle(tasks);
935	>	try {
936	>	invokeAll(tasks);
937	>	shouldThrow();
938	>	} catch (FJException success) {
939	>	checkCompletedAbnormally(g, success);
940		}
941	<	};
942	<	mainPool.invoke(a);
941	>	}};
942	>	testInvokeOnPool(mainPool(), a);
943		}
944
945		/**
946	<	* invokeAll(collection)  throws exception if any task does
946	>	* invokeAll(collection) throws exception if any task does
947		*/
948		public void testAbnormalInvokeAllCollection() {
949	<	RecursiveAction a = new RecursiveAction() {
950	<	public void compute() {
951	<	try {
952	<	FailingAsyncFib f = new FailingAsyncFib(8);
953	<	AsyncFib g = new AsyncFib(9);
954	<	AsyncFib h = new AsyncFib(7);
955	<	HashSet set = new HashSet();
956	<	set.add(f);
957	<	set.add(g);
958	<	set.add(h);
959	<	invokeAll(set);
960	<	shouldThrow();
826	<	} catch (FJException success) {
827	<	}
949	>	RecursiveAction a = new CheckedRecursiveAction() {
950	>	protected void realCompute() {
951	>	FailingAsyncFib f = new FailingAsyncFib(8);
952	>	AsyncFib g = new AsyncFib(9);
953	>	AsyncFib h = new AsyncFib(7);
954	>	ForkJoinTask[] tasks = { f, g, h };
955	>	shuffle(tasks);
956	>	try {
957	>	invokeAll(Arrays.asList(tasks));
958	>	shouldThrow();
959	>	} catch (FJException success) {
960	>	checkCompletedAbnormally(f, success);
961		}
962	<	};
963	<	mainPool.invoke(a);
962	>	}};
963	>	testInvokeOnPool(mainPool(), a);
964		}
965
966		/**
#	Line 835 | Line 968 | public class ForkJoinTaskTest extends JS
968		* and suppresses execution
969		*/
970		public void testTryUnfork() {
971	<	RecursiveAction a = new RecursiveAction() {
972	<	public void compute() {
973	<	AsyncFib g = new AsyncFib(9);
974	<	g.fork();
975	<	AsyncFib f = new AsyncFib(8);
976	<	f.fork();
977	<	threadAssertTrue(f.tryUnfork());
978	<	helpQuiesce();
979	<	threadAssertFalse(f.isDone());
980	<	threadAssertTrue(g.isDone());
981	<	}
982	<	};
850	<	singletonPool.invoke(a);
971	>	RecursiveAction a = new CheckedRecursiveAction() {
972	>	protected void realCompute() {
973	>	AsyncFib g = new AsyncFib(9);
974	>	assertSame(g, g.fork());
975	>	AsyncFib f = new AsyncFib(8);
976	>	assertSame(f, f.fork());
977	>	assertTrue(f.tryUnfork());
978	>	helpQuiesce();
979	>	checkNotDone(f);
980	>	checkCompletedNormally(g);
981	>	}};
982	>	testInvokeOnPool(singletonPool(), a);
983		}
984
985		/**
#	Line 855 | Line 987 | public class ForkJoinTaskTest extends JS
987		* there are more tasks than threads
988		*/
989		public void testGetSurplusQueuedTaskCount() {
990	<	RecursiveAction a = new RecursiveAction() {
991	<	public void compute() {
992	<	AsyncFib h = new AsyncFib(7);
993	<	h.fork();
994	<	AsyncFib g = new AsyncFib(9);
995	<	g.fork();
996	<	AsyncFib f = new AsyncFib(8);
997	<	f.fork();
998	<	threadAssertTrue(getSurplusQueuedTaskCount() > 0);
999	<	helpQuiesce();
1000	<	}
1001	<	};
1002	<	singletonPool.invoke(a);
990	>	RecursiveAction a = new CheckedRecursiveAction() {
991	>	protected void realCompute() {
992	>	AsyncFib h = new AsyncFib(7);
993	>	assertSame(h, h.fork());
994	>	AsyncFib g = new AsyncFib(9);
995	>	assertSame(g, g.fork());
996	>	AsyncFib f = new AsyncFib(8);
997	>	assertSame(f, f.fork());
998	>	assertTrue(getSurplusQueuedTaskCount() > 0);
999	>	helpQuiesce();
1000	>	assertEquals(0, getSurplusQueuedTaskCount());
1001	>	checkCompletedNormally(f);
1002	>	checkCompletedNormally(g);
1003	>	checkCompletedNormally(h);
1004	>	}};
1005	>	testInvokeOnPool(singletonPool(), a);
1006		}
1007
1008		/**
1009		* peekNextLocalTask returns most recent unexecuted task.
1010		*/
1011		public void testPeekNextLocalTask() {
1012	<	RecursiveAction a = new RecursiveAction() {
1013	<	public void compute() {
1014	<	AsyncFib g = new AsyncFib(9);
1015	<	g.fork();
1016	<	AsyncFib f = new AsyncFib(8);
1017	<	f.fork();
1018	<	threadAssertTrue(peekNextLocalTask() == f);
1019	<	f.join();
1020	<	threadAssertTrue(f.isDone());
1021	<	helpQuiesce();
1022	<	}
1023	<	};
1024	<	singletonPool.invoke(a);
1012	>	RecursiveAction a = new CheckedRecursiveAction() {
1013	>	protected void realCompute() {
1014	>	AsyncFib g = new AsyncFib(9);
1015	>	assertSame(g, g.fork());
1016	>	AsyncFib f = new AsyncFib(8);
1017	>	assertSame(f, f.fork());
1018	>	assertSame(f, peekNextLocalTask());
1019	>	assertNull(f.join());
1020	>	checkCompletedNormally(f);
1021	>	helpQuiesce();
1022	>	checkCompletedNormally(g);
1023	>	}};
1024	>	testInvokeOnPool(singletonPool(), a);
1025		}
1026
1027		/**
1028	<	* pollNextLocalTask returns most recent unexecuted task
1029	<	* without executing it
1028	>	* pollNextLocalTask returns most recent unexecuted task without
1029	>	* executing it
1030		*/
1031		public void testPollNextLocalTask() {
1032	<	RecursiveAction a = new RecursiveAction() {
1033	<	public void compute() {
1034	<	AsyncFib g = new AsyncFib(9);
1035	<	g.fork();
1036	<	AsyncFib f = new AsyncFib(8);
1037	<	f.fork();
1038	<	threadAssertTrue(pollNextLocalTask() == f);
1039	<	helpQuiesce();
1040	<	threadAssertFalse(f.isDone());
1041	<	}
1042	<	};
1043	<	singletonPool.invoke(a);
1032	>	RecursiveAction a = new CheckedRecursiveAction() {
1033	>	protected void realCompute() {
1034	>	AsyncFib g = new AsyncFib(9);
1035	>	assertSame(g, g.fork());
1036	>	AsyncFib f = new AsyncFib(8);
1037	>	assertSame(f, f.fork());
1038	>	assertSame(f, pollNextLocalTask());
1039	>	helpQuiesce();
1040	>	checkNotDone(f);
1041	>	assertEquals(34, g.number);
1042	>	checkCompletedNormally(g);
1043	>	}};
1044	>	testInvokeOnPool(singletonPool(), a);
1045		}
1046
1047		/**
1048	<	* pollTask returns an unexecuted task
913	<	* without executing it
1048	>	* pollTask returns an unexecuted task without executing it
1049		*/
1050		public void testPollTask() {
1051	<	RecursiveAction a = new RecursiveAction() {
1052	<	public void compute() {
1053	<	AsyncFib g = new AsyncFib(9);
1054	<	g.fork();
1055	<	AsyncFib f = new AsyncFib(8);
1056	<	f.fork();
1057	<	threadAssertTrue(pollTask() == f);
1058	<	helpQuiesce();
1059	<	threadAssertFalse(f.isDone());
1060	<	threadAssertTrue(g.isDone());
1061	<	}
1062	<	};
928	<	singletonPool.invoke(a);
1051	>	RecursiveAction a = new CheckedRecursiveAction() {
1052	>	protected void realCompute() {
1053	>	AsyncFib g = new AsyncFib(9);
1054	>	assertSame(g, g.fork());
1055	>	AsyncFib f = new AsyncFib(8);
1056	>	assertSame(f, f.fork());
1057	>	assertSame(f, pollTask());
1058	>	helpQuiesce();
1059	>	checkNotDone(f);
1060	>	checkCompletedNormally(g);
1061	>	}};
1062	>	testInvokeOnPool(singletonPool(), a);
1063		}
1064
1065		/**
1066		* peekNextLocalTask returns least recent unexecuted task in async mode
1067		*/
1068		public void testPeekNextLocalTaskAsync() {
1069	<	RecursiveAction a = new RecursiveAction() {
1070	<	public void compute() {
1071	<	AsyncFib g = new AsyncFib(9);
1072	<	g.fork();
1073	<	AsyncFib f = new AsyncFib(8);
1074	<	f.fork();
1075	<	threadAssertTrue(peekNextLocalTask() == g);
1069	>	RecursiveAction a = new CheckedRecursiveAction() {
1070	>	protected void realCompute() {
1071	>	AsyncFib g = new AsyncFib(9);
1072	>	assertSame(g, g.fork());
1073	>	AsyncFib f = new AsyncFib(8);
1074	>	assertSame(f, f.fork());
1075	>	assertSame(g, peekNextLocalTask());
1076	>	assertNull(f.join());
1077	>	helpQuiesce();
1078	>	checkCompletedNormally(f);
1079	>	assertEquals(34, g.number);
1080	>	checkCompletedNormally(g);
1081	>	}};
1082	>	testInvokeOnPool(asyncSingletonPool(), a);
1083	>	}
1084	>
1085	>	/**
1086	>	* pollNextLocalTask returns least recent unexecuted task without
1087	>	* executing it, in async mode
1088	>	*/
1089	>	public void testPollNextLocalTaskAsync() {
1090	>	RecursiveAction a = new CheckedRecursiveAction() {
1091	>	protected void realCompute() {
1092	>	AsyncFib g = new AsyncFib(9);
1093	>	assertSame(g, g.fork());
1094	>	AsyncFib f = new AsyncFib(8);
1095	>	assertSame(f, f.fork());
1096	>	assertSame(g, pollNextLocalTask());
1097	>	helpQuiesce();
1098	>	assertEquals(21, f.number);
1099	>	checkCompletedNormally(f);
1100	>	checkNotDone(g);
1101	>	}};
1102	>	testInvokeOnPool(asyncSingletonPool(), a);
1103	>	}
1104	>
1105	>	/**
1106	>	* pollTask returns an unexecuted task without executing it, in
1107	>	* async mode
1108	>	*/
1109	>	public void testPollTaskAsync() {
1110	>	RecursiveAction a = new CheckedRecursiveAction() {
1111	>	protected void realCompute() {
1112	>	AsyncFib g = new AsyncFib(9);
1113	>	assertSame(g, g.fork());
1114	>	AsyncFib f = new AsyncFib(8);
1115	>	assertSame(f, f.fork());
1116	>	assertSame(g, pollTask());
1117	>	helpQuiesce();
1118	>	assertEquals(21, f.number);
1119	>	checkCompletedNormally(f);
1120	>	checkNotDone(g);
1121	>	}};
1122	>	testInvokeOnPool(asyncSingletonPool(), a);
1123	>	}
1124	>
1125	>	// versions for singleton pools
1126	>
1127	>	/**
1128	>	* invoke returns when task completes normally.
1129	>	* isCompletedAbnormally and isCancelled return false for normally
1130	>	* completed tasks; getRawResult returns null.
1131	>	*/
1132	>	public void testInvokeSingleton() {
1133	>	RecursiveAction a = new CheckedRecursiveAction() {
1134	>	protected void realCompute() {
1135	>	AsyncFib f = new AsyncFib(8);
1136	>	assertNull(f.invoke());
1137	>	assertEquals(21, f.number);
1138	>	checkCompletedNormally(f);
1139	>	}};
1140	>	testInvokeOnPool(singletonPool(), a);
1141	>	}
1142	>
1143	>	/**
1144	>	* quietlyInvoke task returns when task completes normally.
1145	>	* isCompletedAbnormally and isCancelled return false for normally
1146	>	* completed tasks
1147	>	*/
1148	>	public void testQuietlyInvokeSingleton() {
1149	>	RecursiveAction a = new CheckedRecursiveAction() {
1150	>	protected void realCompute() {
1151	>	AsyncFib f = new AsyncFib(8);
1152	>	f.quietlyInvoke();
1153	>	assertEquals(21, f.number);
1154	>	checkCompletedNormally(f);
1155	>	}};
1156	>	testInvokeOnPool(singletonPool(), a);
1157	>	}
1158	>
1159	>	/**
1160	>	* join of a forked task returns when task completes
1161	>	*/
1162	>	public void testForkJoinSingleton() {
1163	>	RecursiveAction a = new CheckedRecursiveAction() {
1164	>	protected void realCompute() {
1165	>	AsyncFib f = new AsyncFib(8);
1166	>	assertSame(f, f.fork());
1167	>	assertNull(f.join());
1168	>	assertEquals(21, f.number);
1169	>	checkCompletedNormally(f);
1170	>	}};
1171	>	testInvokeOnPool(singletonPool(), a);
1172	>	}
1173	>
1174	>	/**
1175	>	* get of a forked task returns when task completes
1176	>	*/
1177	>	public void testForkGetSingleton() {
1178	>	RecursiveAction a = new CheckedRecursiveAction() {
1179	>	protected void realCompute() throws Exception {
1180	>	AsyncFib f = new AsyncFib(8);
1181	>	assertSame(f, f.fork());
1182	>	assertNull(f.get());
1183	>	assertEquals(21, f.number);
1184	>	checkCompletedNormally(f);
1185	>	}};
1186	>	testInvokeOnPool(singletonPool(), a);
1187	>	}
1188	>
1189	>	/**
1190	>	* timed get of a forked task returns when task completes
1191	>	*/
1192	>	public void testForkTimedGetSingleton() {
1193	>	RecursiveAction a = new CheckedRecursiveAction() {
1194	>	protected void realCompute() throws Exception {
1195	>	AsyncFib f = new AsyncFib(8);
1196	>	assertSame(f, f.fork());
1197	>	assertNull(f.get(LONG_DELAY_MS, MILLISECONDS));
1198	>	assertEquals(21, f.number);
1199	>	checkCompletedNormally(f);
1200	>	}};
1201	>	testInvokeOnPool(singletonPool(), a);
1202	>	}
1203	>
1204	>	/**
1205	>	* timed get with null time unit throws NPE
1206	>	*/
1207	>	public void testForkTimedGetNPESingleton() {
1208	>	RecursiveAction a = new CheckedRecursiveAction() {
1209	>	protected void realCompute() throws Exception {
1210	>	AsyncFib f = new AsyncFib(8);
1211	>	assertSame(f, f.fork());
1212	>	try {
1213	>	f.get(randomTimeout(), null);
1214	>	shouldThrow();
1215	>	} catch (NullPointerException success) {}
1216	>	}};
1217	>	testInvokeOnPool(singletonPool(), a);
1218	>	}
1219	>
1220	>	/**
1221	>	* quietlyJoin of a forked task returns when task completes
1222	>	*/
1223	>	public void testForkQuietlyJoinSingleton() {
1224	>	RecursiveAction a = new CheckedRecursiveAction() {
1225	>	protected void realCompute() {
1226	>	AsyncFib f = new AsyncFib(8);
1227	>	assertSame(f, f.fork());
1228	>	f.quietlyJoin();
1229	>	assertEquals(21, f.number);
1230	>	checkCompletedNormally(f);
1231	>	}};
1232	>	testInvokeOnPool(singletonPool(), a);
1233	>	}
1234	>
1235	>	/**
1236	>	* helpQuiesce returns when tasks are complete.
1237	>	* getQueuedTaskCount returns 0 when quiescent
1238	>	*/
1239	>	public void testForkHelpQuiesceSingleton() {
1240	>	RecursiveAction a = new CheckedRecursiveAction() {
1241	>	protected void realCompute() {
1242	>	AsyncFib f = new AsyncFib(8);
1243	>	assertSame(f, f.fork());
1244	>	helpQuiesce();
1245	>	assertEquals(0, getQueuedTaskCount());
1246	>	assertEquals(21, f.number);
1247	>	checkCompletedNormally(f);
1248	>	}};
1249	>	testInvokeOnPool(singletonPool(), a);
1250	>	}
1251	>
1252	>	/**
1253	>	* invoke task throws exception when task completes abnormally
1254	>	*/
1255	>	public void testAbnormalInvokeSingleton() {
1256	>	RecursiveAction a = new CheckedRecursiveAction() {
1257	>	protected void realCompute() {
1258	>	FailingAsyncFib f = new FailingAsyncFib(8);
1259	>	try {
1260	>	f.invoke();
1261	>	shouldThrow();
1262	>	} catch (FJException success) {
1263	>	checkCompletedAbnormally(f, success);
1264	>	}
1265	>	}};
1266	>	testInvokeOnPool(singletonPool(), a);
1267	>	}
1268	>
1269	>	/**
1270	>	* quietlyInvoke task returns when task completes abnormally
1271	>	*/
1272	>	public void testAbnormalQuietlyInvokeSingleton() {
1273	>	RecursiveAction a = new CheckedRecursiveAction() {
1274	>	protected void realCompute() {
1275	>	FailingAsyncFib f = new FailingAsyncFib(8);
1276	>	f.quietlyInvoke();
1277	>	assertTrue(f.getException() instanceof FJException);
1278	>	checkCompletedAbnormally(f, f.getException());
1279	>	}};
1280	>	testInvokeOnPool(singletonPool(), a);
1281	>	}
1282	>
1283	>	/**
1284	>	* join of a forked task throws exception when task completes abnormally
1285	>	*/
1286	>	public void testAbnormalForkJoinSingleton() {
1287	>	RecursiveAction a = new CheckedRecursiveAction() {
1288	>	protected void realCompute() {
1289	>	FailingAsyncFib f = new FailingAsyncFib(8);
1290	>	assertSame(f, f.fork());
1291	>	try {
1292		f.join();
1293	<	helpQuiesce();
1294	<	threadAssertTrue(f.isDone());
1293	>	shouldThrow();
1294	>	} catch (FJException success) {
1295	>	checkCompletedAbnormally(f, success);
1296		}
1297	<	};
1298	<	asyncSingletonPool.invoke(a);
1297	>	}};
1298	>	testInvokeOnPool(singletonPool(), a);
1299		}
1300
1301		/**
1302	<	* pollNextLocalTask returns least recent unexecuted task
952	<	* without executing it, in async mode
1302	>	* get of a forked task throws exception when task completes abnormally
1303		*/
1304	<	public void testPollNextLocalTaskAsync() {
1305	<	RecursiveAction a = new RecursiveAction() {
1306	<	public void compute() {
1307	<	AsyncFib g = new AsyncFib(9);
1308	<	g.fork();
1309	<	AsyncFib f = new AsyncFib(8);
1310	<	f.fork();
1311	<	threadAssertTrue(pollNextLocalTask() == g);
1312	<	helpQuiesce();
1313	<	threadAssertTrue(f.isDone());
1314	<	threadAssertFalse(g.isDone());
1304	>	public void testAbnormalForkGetSingleton() {
1305	>	RecursiveAction a = new CheckedRecursiveAction() {
1306	>	protected void realCompute() throws Exception {
1307	>	FailingAsyncFib f = new FailingAsyncFib(8);
1308	>	assertSame(f, f.fork());
1309	>	try {
1310	>	f.get();
1311	>	shouldThrow();
1312	>	} catch (ExecutionException success) {
1313	>	Throwable cause = success.getCause();
1314	>	assertTrue(cause instanceof FJException);
1315	>	checkCompletedAbnormally(f, cause);
1316		}
1317	<	};
1318	<	asyncSingletonPool.invoke(a);
1317	>	}};
1318	>	testInvokeOnPool(singletonPool(), a);
1319		}
1320
1321		/**
1322	<	* pollTask returns an unexecuted task
972	<	* without executing it, in async mode
1322	>	* timed get of a forked task throws exception when task completes abnormally
1323		*/
1324	<	public void testPollTaskAsync() {
1325	<	RecursiveAction a = new RecursiveAction() {
1326	<	public void compute() {
1327	<	AsyncFib g = new AsyncFib(9);
1328	<	g.fork();
1329	<	AsyncFib f = new AsyncFib(8);
1330	<	f.fork();
1331	<	threadAssertTrue(pollTask() == g);
1332	<	helpQuiesce();
1333	<	threadAssertTrue(f.isDone());
1334	<	threadAssertFalse(g.isDone());
1324	>	public void testAbnormalForkTimedGetSingleton() {
1325	>	RecursiveAction a = new CheckedRecursiveAction() {
1326	>	protected void realCompute() throws Exception {
1327	>	FailingAsyncFib f = new FailingAsyncFib(8);
1328	>	assertSame(f, f.fork());
1329	>	try {
1330	>	f.get(LONG_DELAY_MS, MILLISECONDS);
1331	>	shouldThrow();
1332	>	} catch (ExecutionException success) {
1333	>	Throwable cause = success.getCause();
1334	>	assertTrue(cause instanceof FJException);
1335	>	checkCompletedAbnormally(f, cause);
1336	>	}
1337	>	}};
1338	>	testInvokeOnPool(singletonPool(), a);
1339	>	}
1340	>
1341	>	/**
1342	>	* quietlyJoin of a forked task returns when task completes abnormally
1343	>	*/
1344	>	public void testAbnormalForkQuietlyJoinSingleton() {
1345	>	RecursiveAction a = new CheckedRecursiveAction() {
1346	>	protected void realCompute() {
1347	>	FailingAsyncFib f = new FailingAsyncFib(8);
1348	>	assertSame(f, f.fork());
1349	>	f.quietlyJoin();
1350	>	assertTrue(f.getException() instanceof FJException);
1351	>	checkCompletedAbnormally(f, f.getException());
1352	>	}};
1353	>	testInvokeOnPool(singletonPool(), a);
1354	>	}
1355	>
1356	>	/**
1357	>	* invoke task throws exception when task cancelled
1358	>	*/
1359	>	public void testCancelledInvokeSingleton() {
1360	>	RecursiveAction a = new CheckedRecursiveAction() {
1361	>	protected void realCompute() {
1362	>	AsyncFib f = new AsyncFib(8);
1363	>	assertTrue(f.cancel(true));
1364	>	try {
1365	>	f.invoke();
1366	>	shouldThrow();
1367	>	} catch (CancellationException success) {
1368	>	checkCancelled(f);
1369	>	}
1370	>	}};
1371	>	testInvokeOnPool(singletonPool(), a);
1372	>	}
1373	>
1374	>	/**
1375	>	* join of a forked task throws exception when task cancelled
1376	>	*/
1377	>	public void testCancelledForkJoinSingleton() {
1378	>	RecursiveAction a = new CheckedRecursiveAction() {
1379	>	protected void realCompute() {
1380	>	AsyncFib f = new AsyncFib(8);
1381	>	assertTrue(f.cancel(true));
1382	>	assertSame(f, f.fork());
1383	>	try {
1384	>	f.join();
1385	>	shouldThrow();
1386	>	} catch (CancellationException success) {
1387	>	checkCancelled(f);
1388	>	}
1389	>	}};
1390	>	testInvokeOnPool(singletonPool(), a);
1391	>	}
1392	>
1393	>	/**
1394	>	* get of a forked task throws exception when task cancelled
1395	>	*/
1396	>	public void testCancelledForkGetSingleton() {
1397	>	RecursiveAction a = new CheckedRecursiveAction() {
1398	>	protected void realCompute() throws Exception {
1399	>	AsyncFib f = new AsyncFib(8);
1400	>	assertTrue(f.cancel(true));
1401	>	assertSame(f, f.fork());
1402	>	try {
1403	>	f.get();
1404	>	shouldThrow();
1405	>	} catch (CancellationException success) {
1406	>	checkCancelled(f);
1407	>	}
1408	>	}};
1409	>	testInvokeOnPool(singletonPool(), a);
1410	>	}
1411	>
1412	>	/**
1413	>	* timed get of a forked task throws exception when task cancelled
1414	>	*/
1415	>	public void testCancelledForkTimedGetSingleton() throws Exception {
1416	>	RecursiveAction a = new CheckedRecursiveAction() {
1417	>	protected void realCompute() throws Exception {
1418	>	AsyncFib f = new AsyncFib(8);
1419	>	assertTrue(f.cancel(true));
1420	>	assertSame(f, f.fork());
1421	>	try {
1422	>	f.get(LONG_DELAY_MS, MILLISECONDS);
1423	>	shouldThrow();
1424	>	} catch (CancellationException success) {
1425	>	checkCancelled(f);
1426	>	}
1427	>	}};
1428	>	testInvokeOnPool(singletonPool(), a);
1429	>	}
1430	>
1431	>	/**
1432	>	* quietlyJoin of a forked task returns when task cancelled
1433	>	*/
1434	>	public void testCancelledForkQuietlyJoinSingleton() {
1435	>	RecursiveAction a = new CheckedRecursiveAction() {
1436	>	protected void realCompute() {
1437	>	AsyncFib f = new AsyncFib(8);
1438	>	assertTrue(f.cancel(true));
1439	>	assertSame(f, f.fork());
1440	>	f.quietlyJoin();
1441	>	checkCancelled(f);
1442	>	}};
1443	>	testInvokeOnPool(singletonPool(), a);
1444	>	}
1445	>
1446	>	/**
1447	>	* invoke task throws exception after invoking completeExceptionally
1448	>	*/
1449	>	public void testCompleteExceptionallySingleton() {
1450	>	RecursiveAction a = new CheckedRecursiveAction() {
1451	>	protected void realCompute() {
1452	>	AsyncFib f = new AsyncFib(8);
1453	>	f.completeExceptionally(new FJException());
1454	>	try {
1455	>	f.invoke();
1456	>	shouldThrow();
1457	>	} catch (FJException success) {
1458	>	checkCompletedAbnormally(f, success);
1459	>	}
1460	>	}};
1461	>	testInvokeOnPool(singletonPool(), a);
1462	>	}
1463	>
1464	>	/**
1465	>	* invokeAll(t1, t2) invokes all task arguments
1466	>	*/
1467	>	public void testInvokeAll2Singleton() {
1468	>	RecursiveAction a = new CheckedRecursiveAction() {
1469	>	protected void realCompute() {
1470	>	AsyncFib f = new AsyncFib(8);
1471	>	AsyncFib g = new AsyncFib(9);
1472	>	invokeAll(f, g);
1473	>	assertEquals(21, f.number);
1474	>	assertEquals(34, g.number);
1475	>	checkCompletedNormally(f);
1476	>	checkCompletedNormally(g);
1477	>	}};
1478	>	testInvokeOnPool(singletonPool(), a);
1479	>	}
1480	>
1481	>	/**
1482	>	* invokeAll(tasks) with 1 argument invokes task
1483	>	*/
1484	>	public void testInvokeAll1Singleton() {
1485	>	RecursiveAction a = new CheckedRecursiveAction() {
1486	>	protected void realCompute() {
1487	>	AsyncFib f = new AsyncFib(8);
1488	>	invokeAll(f);
1489	>	checkCompletedNormally(f);
1490	>	assertEquals(21, f.number);
1491	>	}};
1492	>	testInvokeOnPool(singletonPool(), a);
1493	>	}
1494	>
1495	>	/**
1496	>	* invokeAll(tasks) with > 2 argument invokes tasks
1497	>	*/
1498	>	public void testInvokeAll3Singleton() {
1499	>	RecursiveAction a = new CheckedRecursiveAction() {
1500	>	protected void realCompute() {
1501	>	AsyncFib f = new AsyncFib(8);
1502	>	AsyncFib g = new AsyncFib(9);
1503	>	AsyncFib h = new AsyncFib(7);
1504	>	invokeAll(f, g, h);
1505	>	assertEquals(21, f.number);
1506	>	assertEquals(34, g.number);
1507	>	assertEquals(13, h.number);
1508	>	checkCompletedNormally(f);
1509	>	checkCompletedNormally(g);
1510	>	checkCompletedNormally(h);
1511	>	}};
1512	>	testInvokeOnPool(singletonPool(), a);
1513	>	}
1514	>
1515	>	/**
1516	>	* invokeAll(collection) invokes all tasks in the collection
1517	>	*/
1518	>	public void testInvokeAllCollectionSingleton() {
1519	>	RecursiveAction a = new CheckedRecursiveAction() {
1520	>	protected void realCompute() {
1521	>	AsyncFib f = new AsyncFib(8);
1522	>	AsyncFib g = new AsyncFib(9);
1523	>	AsyncFib h = new AsyncFib(7);
1524	>	HashSet set = new HashSet();
1525	>	set.add(f);
1526	>	set.add(g);
1527	>	set.add(h);
1528	>	invokeAll(set);
1529	>	assertEquals(21, f.number);
1530	>	assertEquals(34, g.number);
1531	>	assertEquals(13, h.number);
1532	>	checkCompletedNormally(f);
1533	>	checkCompletedNormally(g);
1534	>	checkCompletedNormally(h);
1535	>	}};
1536	>	testInvokeOnPool(singletonPool(), a);
1537	>	}
1538	>
1539	>	/**
1540	>	* invokeAll(tasks) with any null task throws NPE
1541	>	*/
1542	>	public void testInvokeAllNPESingleton() {
1543	>	RecursiveAction a = new CheckedRecursiveAction() {
1544	>	protected void realCompute() {
1545	>	AsyncFib f = new AsyncFib(8);
1546	>	AsyncFib g = new AsyncFib(9);
1547	>	AsyncFib h = null;
1548	>	try {
1549	>	invokeAll(f, g, h);
1550	>	shouldThrow();
1551	>	} catch (NullPointerException success) {}
1552	>	}};
1553	>	testInvokeOnPool(singletonPool(), a);
1554	>	}
1555	>
1556	>	/**
1557	>	* invokeAll(t1, t2) throw exception if any task does
1558	>	*/
1559	>	public void testAbnormalInvokeAll2Singleton() {
1560	>	RecursiveAction a = new CheckedRecursiveAction() {
1561	>	protected void realCompute() {
1562	>	AsyncFib f = new AsyncFib(8);
1563	>	FailingAsyncFib g = new FailingAsyncFib(9);
1564	>	ForkJoinTask[] tasks = { f, g };
1565	>	shuffle(tasks);
1566	>	try {
1567	>	invokeAll(tasks);
1568	>	shouldThrow();
1569	>	} catch (FJException success) {
1570	>	checkCompletedAbnormally(g, success);
1571	>	}
1572	>	}};
1573	>	testInvokeOnPool(singletonPool(), a);
1574	>	}
1575	>
1576	>	/**
1577	>	* invokeAll(tasks) with 1 argument throws exception if task does
1578	>	*/
1579	>	public void testAbnormalInvokeAll1Singleton() {
1580	>	RecursiveAction a = new CheckedRecursiveAction() {
1581	>	protected void realCompute() {
1582	>	FailingAsyncFib g = new FailingAsyncFib(9);
1583	>	try {
1584	>	invokeAll(g);
1585	>	shouldThrow();
1586	>	} catch (FJException success) {
1587	>	checkCompletedAbnormally(g, success);
1588		}
1589	<	};
1590	<	asyncSingletonPool.invoke(a);
1589	>	}};
1590	>	testInvokeOnPool(singletonPool(), a);
1591	>	}
1592	>
1593	>	/**
1594	>	* invokeAll(tasks) with > 2 argument throws exception if any task does
1595	>	*/
1596	>	public void testAbnormalInvokeAll3Singleton() {
1597	>	RecursiveAction a = new CheckedRecursiveAction() {
1598	>	protected void realCompute() {
1599	>	AsyncFib f = new AsyncFib(8);
1600	>	FailingAsyncFib g = new FailingAsyncFib(9);
1601	>	AsyncFib h = new AsyncFib(7);
1602	>	ForkJoinTask[] tasks = { f, g, h };
1603	>	shuffle(tasks);
1604	>	try {
1605	>	invokeAll(tasks);
1606	>	shouldThrow();
1607	>	} catch (FJException success) {
1608	>	checkCompletedAbnormally(g, success);
1609	>	}
1610	>	}};
1611	>	testInvokeOnPool(singletonPool(), a);
1612	>	}
1613	>
1614	>	/**
1615	>	* invokeAll(collection) throws exception if any task does
1616	>	*/
1617	>	public void testAbnormalInvokeAllCollectionSingleton() {
1618	>	RecursiveAction a = new CheckedRecursiveAction() {
1619	>	protected void realCompute() {
1620	>	FailingAsyncFib f = new FailingAsyncFib(8);
1621	>	AsyncFib g = new AsyncFib(9);
1622	>	AsyncFib h = new AsyncFib(7);
1623	>	ForkJoinTask[] tasks = { f, g, h };
1624	>	shuffle(tasks);
1625	>	try {
1626	>	invokeAll(Arrays.asList(tasks));
1627	>	shouldThrow();
1628	>	} catch (FJException success) {
1629	>	checkCompletedAbnormally(f, success);
1630	>	}
1631	>	}};
1632	>	testInvokeOnPool(singletonPool(), a);
1633	>	}
1634	>
1635	>	/**
1636	>	* ForkJoinTask.quietlyComplete returns when task completes
1637	>	* normally without setting a value. The most recent value
1638	>	* established by setRawResult(V) (or null by default) is returned
1639	>	* from invoke.
1640	>	*/
1641	>	public void testQuietlyComplete() {
1642	>	RecursiveAction a = new CheckedRecursiveAction() {
1643	>	protected void realCompute() {
1644	>	AsyncFib f = new AsyncFib(8);
1645	>	f.quietlyComplete();
1646	>	assertEquals(8, f.number);
1647	>	checkCompletedNormally(f);
1648	>	}};
1649	>	testInvokeOnPool(mainPool(), a);
1650	>	}
1651	>
1652	>	/**
1653	>	* adapt(runnable).toString() contains toString of wrapped task
1654	>	*/
1655	>	public void testAdapt_Runnable_toString() {
1656	>	if (testImplementationDetails) {
1657	>	Runnable r = () -> {};
1658	>	ForkJoinTask<?> task = ForkJoinTask.adapt(r);
1659	>	assertEquals(
1660	>	identityString(task) + "[Wrapped task = " + r.toString() + "]",
1661	>	task.toString());
1662	>	}
1663	>	}
1664	>
1665	>	/**
1666	>	* adapt(runnable, x).toString() contains toString of wrapped task
1667	>	*/
1668	>	public void testAdapt_Runnable_withResult_toString() {
1669	>	if (testImplementationDetails) {
1670	>	Runnable r = () -> {};
1671	>	ForkJoinTask<String> task = ForkJoinTask.adapt(r, "");
1672	>	assertEquals(
1673	>	identityString(task) + "[Wrapped task = " + r.toString() + "]",
1674	>	task.toString());
1675	>	}
1676	>	}
1677	>
1678	>	/**
1679	>	* adapt(callable).toString() contains toString of wrapped task
1680	>	*/
1681	>	public void testAdapt_Callable_toString() {
1682	>	if (testImplementationDetails) {
1683	>	Callable<String> c = () -> "";
1684	>	ForkJoinTask<String> task = ForkJoinTask.adapt(c);
1685	>	assertEquals(
1686	>	identityString(task) + "[Wrapped task = " + c.toString() + "]",
1687	>	task.toString());
1688	>	}
1689		}
1690		}

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