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Comparing jsr166/src/test/tck/ForkJoinTaskTest.java (file contents):
Revision 1.16 by jsr166, Mon Sep 13 23:23:44 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.concurrent.ExecutionException;
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;
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 java.util.HashSet;
20	<	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 39 | Line 49 | public class ForkJoinTaskTest extends JS
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	<	assertTrue(pool.invoke(a) == null);
118	<	} finally {
119	<	joinPool(pool);
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		/*
#	Line 54 | Line 204 | public class ForkJoinTaskTest extends JS
204		* differently than supplied Recursive forms.
205		*/
206
207	<	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 102 | 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 123 | Line 281 | public class ForkJoinTaskTest extends JS
281		}
282
283		public final void completeExceptionally(Throwable ex) {
284	<	BinaryAsyncAction a = this;
127	<	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 179 | 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);
188	<	r.fork();
189	<	}
190	<	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 198 | Line 352 | public class ForkJoinTaskTest extends JS
352		}
353		}
354
201	–
355		static final class FailingAsyncFib extends BinaryAsyncAction {
356		int number;
357		public FailingAsyncFib(int n) {
#	Line 208 | 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);
217	<	r.fork();
218	<	}
219	<	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 230 | 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() {
386	>	RecursiveAction a = new CheckedRecursiveAction() {
387	>	protected void realCompute() {
388		AsyncFib f = new AsyncFib(8);
389	<	threadAssertNull(f.invoke());
390	<	threadAssertTrue(f.number == 21);
391	<	threadAssertTrue(f.isDone());
242	<	threadAssertFalse(f.isCancelled());
243	<	threadAssertFalse(f.isCompletedAbnormally());
244	<	threadAssertTrue(f.getRawResult() == null);
389	>	assertNull(f.invoke());
390	>	assertEquals(21, f.number);
391	>	checkCompletedNormally(f);
392		}};
393		testInvokeOnPool(mainPool(), a);
394		}
#	Line 252 | Line 399 | public class ForkJoinTaskTest extends JS
399		* completed tasks
400		*/
401		public void testQuietlyInvoke() {
402	<	RecursiveAction a = new RecursiveAction() {
403	<	public void compute() {
402	>	RecursiveAction a = new CheckedRecursiveAction() {
403	>	protected void realCompute() {
404		AsyncFib f = new AsyncFib(8);
405		f.quietlyInvoke();
406	<	threadAssertTrue(f.number == 21);
407	<	threadAssertTrue(f.isDone());
261	<	threadAssertFalse(f.isCancelled());
262	<	threadAssertFalse(f.isCompletedAbnormally());
263	<	threadAssertTrue(f.getRawResult() == null);
406	>	assertEquals(21, f.number);
407	>	checkCompletedNormally(f);
408		}};
409		testInvokeOnPool(mainPool(), a);
410		}
#	Line 269 | Line 413 | public class ForkJoinTaskTest extends JS
413		* join of a forked task returns when task completes
414		*/
415		public void testForkJoin() {
416	<	RecursiveAction a = new RecursiveAction() {
417	<	public void compute() {
416	>	RecursiveAction a = new CheckedRecursiveAction() {
417	>	protected void realCompute() {
418		AsyncFib f = new AsyncFib(8);
419	<	threadAssertSame(f, f.fork());
420	<	threadAssertNull(f.join());
421	<	threadAssertTrue(f.number == 21);
422	<	threadAssertTrue(f.isDone());
279	<	threadAssertTrue(f.getRawResult() == null);
419	>	assertSame(f, f.fork());
420	>	assertNull(f.join());
421	>	assertEquals(21, f.number);
422	>	checkCompletedNormally(f);
423		}};
424		testInvokeOnPool(mainPool(), a);
425		}
#	Line 285 | Line 428 | public class ForkJoinTaskTest extends JS
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	<	threadAssertSame(f, f.fork());
436	<	threadAssertNull(f.get());
437	<	threadAssertTrue(f.number == 21);
295	<	threadAssertTrue(f.isDone());
296	<	} catch (Exception ex) {
297	<	unexpectedException(ex);
298	<	}
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		}
#	Line 304 | Line 443 | public class ForkJoinTaskTest extends JS
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	<	threadAssertSame(f, f.fork());
451	<	threadAssertNull(f.get(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
452	<	threadAssertTrue(f.number == 21);
314	<	threadAssertTrue(f.isDone());
315	<	} catch (Exception ex) {
316	<	unexpectedException(ex);
317	<	}
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		}
#	Line 323 | Line 458 | public class ForkJoinTaskTest extends JS
458		* timed get with null time unit throws NPE
459		*/
460		public void testForkTimedGetNPE() {
461	<	RecursiveAction a = new RecursiveAction() {
462	<	public void compute() {
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	<	AsyncFib f = new AsyncFib(8);
330	<	threadAssertSame(f, f.fork());
331	<	f.get(5L, null);
466	>	f.get(randomTimeout(), null);
467		shouldThrow();
468	<	} catch (NullPointerException success) {
334	<	} catch (Exception ex) {
335	<	unexpectedException(ex);
336	<	}
468	>	} catch (NullPointerException success) {}
469		}};
470		testInvokeOnPool(mainPool(), a);
471		}
#	Line 342 | Line 474 | public class ForkJoinTaskTest extends JS
474		* quietlyJoin of a forked task returns when task completes
475		*/
476		public void testForkQuietlyJoin() {
477	<	RecursiveAction a = new RecursiveAction() {
478	<	public void compute() {
477	>	RecursiveAction a = new CheckedRecursiveAction() {
478	>	protected void realCompute() {
479		AsyncFib f = new AsyncFib(8);
480	<	threadAssertSame(f, f.fork());
480	>	assertSame(f, f.fork());
481		f.quietlyJoin();
482	<	threadAssertTrue(f.number == 21);
483	<	threadAssertTrue(f.isDone());
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() {
493	>	RecursiveAction a = new CheckedRecursiveAction() {
494	>	protected void realCompute() {
495		AsyncFib f = new AsyncFib(8);
496	<	threadAssertSame(f, f.fork());
497	<	f.helpQuiesce();
498	<	threadAssertTrue(f.number == 21);
499	<	threadAssertTrue(f.isDone());
500	<	threadAssertTrue(getQueuedTaskCount() == 0);
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
374	–
505		/**
506		* invoke task throws exception when task completes abnormally
507		*/
508		public void testAbnormalInvoke() {
509	<	RecursiveAction a = new RecursiveAction() {
510	<	public void compute() {
509	>	RecursiveAction a = new CheckedRecursiveAction() {
510	>	protected void realCompute() {
511	>	FailingAsyncFib f = new FailingAsyncFib(8);
512		try {
382	–	FailingAsyncFib f = new FailingAsyncFib(8);
513		f.invoke();
514		shouldThrow();
515		} catch (FJException success) {
516	+	checkCompletedAbnormally(f, success);
517		}
518		}};
519		testInvokeOnPool(mainPool(), a);
#	Line 392 | Line 523 | public class ForkJoinTaskTest extends JS
523		* quietlyInvoke task returns when task completes abnormally
524		*/
525		public void testAbnormalQuietlyInvoke() {
526	<	RecursiveAction a = new RecursiveAction() {
527	<	public void compute() {
526	>	RecursiveAction a = new CheckedRecursiveAction() {
527	>	protected void realCompute() {
528		FailingAsyncFib f = new FailingAsyncFib(8);
529		f.quietlyInvoke();
530	<	threadAssertTrue(f.isDone());
530	>	assertTrue(f.getException() instanceof FJException);
531	>	checkCompletedAbnormally(f, f.getException());
532		}};
533		testInvokeOnPool(mainPool(), a);
534		}
#	Line 405 | Line 537 | public class ForkJoinTaskTest extends JS
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() {
540	>	RecursiveAction a = new CheckedRecursiveAction() {
541	>	protected void realCompute() {
542	>	FailingAsyncFib f = new FailingAsyncFib(8);
543	>	assertSame(f, f.fork());
544		try {
411	–	FailingAsyncFib f = new FailingAsyncFib(8);
412	–	threadAssertSame(f, f.fork());
545		f.join();
546		shouldThrow();
547		} catch (FJException success) {
548	+	checkCompletedAbnormally(f, success);
549		}
550		}};
551		testInvokeOnPool(mainPool(), a);
#	Line 422 | Line 555 | public class ForkJoinTaskTest extends JS
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() {
558	>	RecursiveAction a = new CheckedRecursiveAction() {
559	>	protected void realCompute() throws Exception {
560	>	FailingAsyncFib f = new FailingAsyncFib(8);
561	>	assertSame(f, f.fork());
562		try {
428	–	FailingAsyncFib f = new FailingAsyncFib(8);
429	–	threadAssertSame(f, f.fork());
563		f.get();
564		shouldThrow();
565		} catch (ExecutionException success) {
566	<	} catch (Exception ex) {
567	<	unexpectedException(ex);
566	>	Throwable cause = success.getCause();
567	>	assertTrue(cause instanceof FJException);
568	>	checkCompletedAbnormally(f, cause);
569		}
570		}};
571		testInvokeOnPool(mainPool(), a);
#	Line 441 | Line 575 | public class ForkJoinTaskTest extends JS
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() {
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	<	FailingAsyncFib f = new FailingAsyncFib(8);
448	<	threadAssertSame(f, f.fork());
449	<	f.get(LONG_DELAY_MS, TimeUnit.MILLISECONDS);
583	>	f.get(LONG_DELAY_MS, MILLISECONDS);
584		shouldThrow();
585		} catch (ExecutionException success) {
586	<	} catch (Exception ex) {
587	<	unexpectedException(ex);
586	>	Throwable cause = success.getCause();
587	>	assertTrue(cause instanceof FJException);
588	>	checkCompletedAbnormally(f, cause);
589		}
590		}};
591		testInvokeOnPool(mainPool(), a);
#	Line 460 | Line 595 | public class ForkJoinTaskTest extends JS
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() {
598	>	RecursiveAction a = new CheckedRecursiveAction() {
599	>	protected void realCompute() {
600		FailingAsyncFib f = new FailingAsyncFib(8);
601	<	threadAssertSame(f, f.fork());
601	>	assertSame(f, f.fork());
602		f.quietlyJoin();
603	<	threadAssertTrue(f.isDone());
604	<	threadAssertTrue(f.isCompletedAbnormally());
470	<	threadAssertTrue(f.getException() instanceof FJException);
603	>	assertTrue(f.getException() instanceof FJException);
604	>	checkCompletedAbnormally(f, f.getException());
605		}};
606		testInvokeOnPool(mainPool(), a);
607		}
#	Line 476 | Line 610 | public class ForkJoinTaskTest extends JS
610		* invoke task throws exception when task cancelled
611		*/
612		public void testCancelledInvoke() {
613	<	RecursiveAction a = new RecursiveAction() {
614	<	public void compute() {
613	>	RecursiveAction a = new CheckedRecursiveAction() {
614	>	protected void realCompute() {
615	>	AsyncFib f = new AsyncFib(8);
616	>	assertTrue(f.cancel(true));
617		try {
482	–	AsyncFib f = new AsyncFib(8);
483	–	threadAssertTrue(f.cancel(true));
618		f.invoke();
619		shouldThrow();
620		} catch (CancellationException success) {
621	+	checkCancelled(f);
622		}
623		}};
624		testInvokeOnPool(mainPool(), a);
#	Line 493 | Line 628 | public class ForkJoinTaskTest extends JS
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() {
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 {
499	–	AsyncFib f = new AsyncFib(8);
500	–	threadAssertTrue(f.cancel(true));
501	–	threadAssertSame(f, f.fork());
637		f.join();
638		shouldThrow();
639		} catch (CancellationException success) {
640	+	checkCancelled(f);
641		}
642		}};
643		testInvokeOnPool(mainPool(), a);
#	Line 511 | Line 647 | public class ForkJoinTaskTest extends JS
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() {
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 {
517	–	AsyncFib f = new AsyncFib(8);
518	–	threadAssertTrue(f.cancel(true));
519	–	threadAssertSame(f, f.fork());
656		f.get();
657		shouldThrow();
658		} catch (CancellationException success) {
659	<	} catch (Exception ex) {
524	<	unexpectedException(ex);
659	>	checkCancelled(f);
660		}
661		}};
662		testInvokeOnPool(mainPool(), a);
#	Line 530 | Line 665 | public class ForkJoinTaskTest extends JS
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() {
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	<	AsyncFib f = new AsyncFib(8);
538	<	threadAssertTrue(f.cancel(true));
539	<	threadAssertSame(f, f.fork());
540	<	f.get(LONG_DELAY_MS, TimeUnit.MILLISECONDS);
675	>	f.get(LONG_DELAY_MS, MILLISECONDS);
676		shouldThrow();
677		} catch (CancellationException success) {
678	<	} catch (Exception ex) {
544	<	unexpectedException(ex);
678	>	checkCancelled(f);
679		}
680		}};
681		testInvokeOnPool(mainPool(), a);
#	Line 551 | Line 685 | public class ForkJoinTaskTest extends JS
685		* quietlyJoin of a forked task returns when task cancelled
686		*/
687		public void testCancelledForkQuietlyJoin() {
688	<	RecursiveAction a = new RecursiveAction() {
689	<	public void compute() {
688	>	RecursiveAction a = new CheckedRecursiveAction() {
689	>	protected void realCompute() {
690		AsyncFib f = new AsyncFib(8);
691	<	threadAssertTrue(f.cancel(true));
692	<	threadAssertSame(f, f.fork());
691	>	assertTrue(f.cancel(true));
692	>	assertSame(f, f.fork());
693		f.quietlyJoin();
694	<	threadAssertTrue(f.isDone());
561	<	threadAssertTrue(f.isCompletedAbnormally());
562	<	threadAssertTrue(f.getException() instanceof CancellationException);
694	>	checkCancelled(f);
695		}};
696		testInvokeOnPool(mainPool(), a);
697		}
#	Line 569 | Line 701 | public class ForkJoinTaskTest extends JS
701		*/
702		public void testGetPool() {
703		final ForkJoinPool mainPool = mainPool();
704	<	RecursiveAction a = new RecursiveAction() {
705	<	public void compute() {
706	<	threadAssertTrue(getPool() == mainPool);
704	>	RecursiveAction a = new CheckedRecursiveAction() {
705	>	protected void realCompute() {
706	>	assertSame(mainPool, getPool());
707		}};
708		testInvokeOnPool(mainPool, a);
709		}
#	Line 580 | Line 712 | public class ForkJoinTaskTest extends JS
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);
715	>	RecursiveAction a = new CheckedRecursiveAction() {
716	>	protected void realCompute() {
717	>	assertNull(getPool());
718		}};
719		assertNull(a.invoke());
720		}
#	Line 591 | Line 723 | public class ForkJoinTaskTest extends JS
723		* inForkJoinPool of executing task returns true
724		*/
725		public void testInForkJoinPool() {
726	<	RecursiveAction a = new RecursiveAction() {
727	<	public void compute() {
728	<	threadAssertTrue(inForkJoinPool());
726	>	RecursiveAction a = new CheckedRecursiveAction() {
727	>	protected void realCompute() {
728	>	assertTrue(inForkJoinPool());
729		}};
730		testInvokeOnPool(mainPool(), a);
731		}
#	Line 602 | Line 734 | public class ForkJoinTaskTest extends JS
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());
737	>	RecursiveAction a = new CheckedRecursiveAction() {
738	>	protected void realCompute() {
739	>	assertFalse(inForkJoinPool());
740		}};
741		assertNull(a.invoke());
742		}
#	Line 613 | Line 745 | public class ForkJoinTaskTest extends JS
745		* setRawResult(null) succeeds
746		*/
747		public void testSetRawResult() {
748	<	RecursiveAction a = new RecursiveAction() {
749	<	public void compute() {
748	>	RecursiveAction a = new CheckedRecursiveAction() {
749	>	protected void realCompute() {
750		setRawResult(null);
751	+	assertNull(getRawResult());
752		}};
753		assertNull(a.invoke());
754		}
#	Line 624 | Line 757 | public class ForkJoinTaskTest extends JS
757		* invoke task throws exception after invoking completeExceptionally
758		*/
759		public void testCompleteExceptionally() {
760	<	RecursiveAction a = new RecursiveAction() {
761	<	public void compute() {
760	>	RecursiveAction a = new CheckedRecursiveAction() {
761	>	protected void realCompute() {
762	>	AsyncFib f = new AsyncFib(8);
763	>	f.completeExceptionally(new FJException());
764		try {
630	–	AsyncFib f = new AsyncFib(8);
631	–	f.completeExceptionally(new FJException());
765		f.invoke();
766		shouldThrow();
767		} catch (FJException success) {
768	+	checkCompletedAbnormally(f, success);
769	+	}
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);
#	Line 641 | Line 796 | public class ForkJoinTaskTest extends JS
796		* invokeAll(t1, t2) invokes all task arguments
797		*/
798		public void testInvokeAll2() {
799	<	RecursiveAction a = new RecursiveAction() {
800	<	public void compute() {
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	<	threadAssertTrue(f.isDone());
805	<	threadAssertTrue(f.number == 21);
806	<	threadAssertTrue(g.isDone());
807	<	threadAssertTrue(g.number == 34);
804	>	assertEquals(21, f.number);
805	>	assertEquals(34, g.number);
806	>	checkCompletedNormally(f);
807	>	checkCompletedNormally(g);
808		}};
809		testInvokeOnPool(mainPool(), a);
810		}
#	Line 658 | Line 813 | public class ForkJoinTaskTest extends JS
813		* invokeAll(tasks) with 1 argument invokes task
814		*/
815		public void testInvokeAll1() {
816	<	RecursiveAction a = new RecursiveAction() {
817	<	public void compute() {
816	>	RecursiveAction a = new CheckedRecursiveAction() {
817	>	protected void realCompute() {
818		AsyncFib f = new AsyncFib(8);
819		invokeAll(f);
820	<	threadAssertTrue(f.isDone());
821	<	threadAssertTrue(f.number == 21);
820	>	checkCompletedNormally(f);
821	>	assertEquals(21, f.number);
822		}};
823		testInvokeOnPool(mainPool(), a);
824		}
#	Line 672 | Line 827 | public class ForkJoinTaskTest extends JS
827		* invokeAll(tasks) with > 2 argument invokes tasks
828		*/
829		public void testInvokeAll3() {
830	<	RecursiveAction a = new RecursiveAction() {
831	<	public void compute() {
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	<	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);
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		}
#	Line 692 | Line 847 | public class ForkJoinTaskTest extends JS
847		* invokeAll(collection) invokes all tasks in the collection
848		*/
849		public void testInvokeAllCollection() {
850	<	RecursiveAction a = new RecursiveAction() {
851	<	public void compute() {
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);
#	Line 702 | Line 857 | public class ForkJoinTaskTest extends JS
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);
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
715	–
870		/**
871		* invokeAll(tasks) with any null task throws NPE
872		*/
873		public void testInvokeAllNPE() {
874	<	RecursiveAction a = new RecursiveAction() {
875	<	public void compute() {
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 {
723	–	AsyncFib f = new AsyncFib(8);
724	–	AsyncFib g = new AsyncFib(9);
725	–	AsyncFib h = null;
880		invokeAll(f, g, h);
881		shouldThrow();
882	<	} catch (NullPointerException success) {
729	<	}
882	>	} catch (NullPointerException success) {}
883		}};
884		testInvokeOnPool(mainPool(), a);
885		}
#	Line 735 | Line 888 | public class ForkJoinTaskTest extends JS
888		* invokeAll(t1, t2) throw exception if any task does
889		*/
890		public void testAbnormalInvokeAll2() {
891	<	RecursiveAction a = new RecursiveAction() {
892	<	public void compute() {
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	<	AsyncFib f = new AsyncFib(8);
742	<	FailingAsyncFib g = new FailingAsyncFib(9);
743	<	invokeAll(f, g);
898	>	invokeAll(tasks);
899		shouldThrow();
900		} catch (FJException success) {
901	+	checkCompletedAbnormally(g, success);
902		}
903		}};
904		testInvokeOnPool(mainPool(), a);
#	Line 752 | Line 908 | public class ForkJoinTaskTest extends JS
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() {
911	>	RecursiveAction a = new CheckedRecursiveAction() {
912	>	protected void realCompute() {
913	>	FailingAsyncFib g = new FailingAsyncFib(9);
914		try {
758	–	FailingAsyncFib g = new FailingAsyncFib(9);
915		invokeAll(g);
916		shouldThrow();
917		} catch (FJException success) {
918	+	checkCompletedAbnormally(g, success);
919		}
920		}};
921		testInvokeOnPool(mainPool(), a);
#	Line 768 | Line 925 | public class ForkJoinTaskTest extends JS
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() {
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	<	AsyncFib f = new AsyncFib(8);
775	<	FailingAsyncFib g = new FailingAsyncFib(9);
776	<	AsyncFib h = new AsyncFib(7);
777	<	invokeAll(f, g, h);
936	>	invokeAll(tasks);
937		shouldThrow();
938		} catch (FJException success) {
939	+	checkCompletedAbnormally(g, success);
940		}
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() {
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	<	FailingAsyncFib f = new FailingAsyncFib(8);
793	<	AsyncFib g = new AsyncFib(9);
794	<	AsyncFib h = new AsyncFib(7);
795	<	HashSet set = new HashSet();
796	<	set.add(f);
797	<	set.add(g);
798	<	set.add(h);
799	<	invokeAll(set);
957	>	invokeAll(Arrays.asList(tasks));
958		shouldThrow();
959		} catch (FJException success) {
960	+	checkCompletedAbnormally(f, success);
961		}
962		}};
963		testInvokeOnPool(mainPool(), a);
#	Line 809 | 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() {
971	>	RecursiveAction a = new CheckedRecursiveAction() {
972	>	protected void realCompute() {
973		AsyncFib g = new AsyncFib(9);
974	<	threadAssertSame(g, g.fork());
974	>	assertSame(g, g.fork());
975		AsyncFib f = new AsyncFib(8);
976	<	threadAssertSame(f, f.fork());
977	<	threadAssertTrue(f.tryUnfork());
976	>	assertSame(f, f.fork());
977	>	assertTrue(f.tryUnfork());
978		helpQuiesce();
979	<	threadAssertFalse(f.isDone());
980	<	threadAssertTrue(g.isDone());
979	>	checkNotDone(f);
980	>	checkCompletedNormally(g);
981		}};
982		testInvokeOnPool(singletonPool(), a);
983		}
#	Line 828 | 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() {
990	>	RecursiveAction a = new CheckedRecursiveAction() {
991	>	protected void realCompute() {
992		AsyncFib h = new AsyncFib(7);
993	<	threadAssertSame(h, h.fork());
993	>	assertSame(h, h.fork());
994		AsyncFib g = new AsyncFib(9);
995	<	threadAssertSame(g, g.fork());
995	>	assertSame(g, g.fork());
996		AsyncFib f = new AsyncFib(8);
997	<	threadAssertSame(f, f.fork());
998	<	threadAssertTrue(getSurplusQueuedTaskCount() > 0);
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		}
#	Line 846 | Line 1009 | public class ForkJoinTaskTest extends JS
1009		* peekNextLocalTask returns most recent unexecuted task.
1010		*/
1011		public void testPeekNextLocalTask() {
1012	<	RecursiveAction a = new RecursiveAction() {
1013	<	public void compute() {
1012	>	RecursiveAction a = new CheckedRecursiveAction() {
1013	>	protected void realCompute() {
1014		AsyncFib g = new AsyncFib(9);
1015	<	threadAssertSame(g, g.fork());
1015	>	assertSame(g, g.fork());
1016		AsyncFib f = new AsyncFib(8);
1017	<	threadAssertSame(f, f.fork());
1018	<	threadAssertTrue(peekNextLocalTask() == f);
1019	<	threadAssertNull(f.join());
1020	<	threadAssertTrue(f.isDone());
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() {
1032	>	RecursiveAction a = new CheckedRecursiveAction() {
1033	>	protected void realCompute() {
1034		AsyncFib g = new AsyncFib(9);
1035	<	threadAssertSame(g, g.fork());
1035	>	assertSame(g, g.fork());
1036		AsyncFib f = new AsyncFib(8);
1037	<	threadAssertSame(f, f.fork());
1038	<	threadAssertTrue(pollNextLocalTask() == f);
1037	>	assertSame(f, f.fork());
1038	>	assertSame(f, pollNextLocalTask());
1039		helpQuiesce();
1040	<	threadAssertFalse(f.isDone());
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
883	<	* 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() {
1051	>	RecursiveAction a = new CheckedRecursiveAction() {
1052	>	protected void realCompute() {
1053		AsyncFib g = new AsyncFib(9);
1054	<	threadAssertSame(g, g.fork());
1054	>	assertSame(g, g.fork());
1055		AsyncFib f = new AsyncFib(8);
1056	<	threadAssertSame(f, f.fork());
1057	<	threadAssertTrue(pollTask() == f);
1056	>	assertSame(f, f.fork());
1057	>	assertSame(f, pollTask());
1058		helpQuiesce();
1059	<	threadAssertFalse(f.isDone());
1060	<	threadAssertTrue(g.isDone());
1059	>	checkNotDone(f);
1060	>	checkCompletedNormally(g);
1061		}};
1062		testInvokeOnPool(singletonPool(), a);
1063		}
#	Line 901 | Line 1066 | public class ForkJoinTaskTest extends JS
1066		* peekNextLocalTask returns least recent unexecuted task in async mode
1067		*/
1068		public void testPeekNextLocalTaskAsync() {
1069	<	RecursiveAction a = new RecursiveAction() {
1070	<	public void compute() {
1069	>	RecursiveAction a = new CheckedRecursiveAction() {
1070	>	protected void realCompute() {
1071		AsyncFib g = new AsyncFib(9);
1072	<	threadAssertSame(g, g.fork());
1072	>	assertSame(g, g.fork());
1073		AsyncFib f = new AsyncFib(8);
1074	<	threadAssertSame(f, f.fork());
1075	<	threadAssertTrue(peekNextLocalTask() == g);
1076	<	threadAssertNull(f.join());
1074	>	assertSame(f, f.fork());
1075	>	assertSame(g, peekNextLocalTask());
1076	>	assertNull(f.join());
1077		helpQuiesce();
1078	<	threadAssertTrue(f.isDone());
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
1087	<	* without executing it, in async mode
1086	>	* pollNextLocalTask returns least recent unexecuted task without
1087	>	* executing it, in async mode
1088		*/
1089		public void testPollNextLocalTaskAsync() {
1090	<	RecursiveAction a = new RecursiveAction() {
1091	<	public void compute() {
1090	>	RecursiveAction a = new CheckedRecursiveAction() {
1091	>	protected void realCompute() {
1092		AsyncFib g = new AsyncFib(9);
1093	<	threadAssertSame(g, g.fork());
1093	>	assertSame(g, g.fork());
1094		AsyncFib f = new AsyncFib(8);
1095	<	threadAssertSame(f, f.fork());
1096	<	threadAssertTrue(pollNextLocalTask() == g);
1095	>	assertSame(f, f.fork());
1096	>	assertSame(g, pollNextLocalTask());
1097		helpQuiesce();
1098	<	threadAssertTrue(f.isDone());
1099	<	threadAssertFalse(g.isDone());
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
1107	<	* without executing it, in async mode
1106	>	* pollTask returns an unexecuted task without executing it, in
1107	>	* async mode
1108		*/
1109		public void testPollTaskAsync() {
1110	<	RecursiveAction a = new RecursiveAction() {
1111	<	public void compute() {
1110	>	RecursiveAction a = new CheckedRecursiveAction() {
1111	>	protected void realCompute() {
1112		AsyncFib g = new AsyncFib(9);
1113	<	threadAssertSame(g, g.fork());
1113	>	assertSame(g, g.fork());
1114		AsyncFib f = new AsyncFib(8);
1115	<	threadAssertSame(f, f.fork());
1116	<	threadAssertTrue(pollTask() == g);
1115	>	assertSame(f, f.fork());
1116	>	assertSame(g, pollTask());
1117		helpQuiesce();
1118	<	threadAssertTrue(f.isDone());
1119	<	threadAssertFalse(g.isDone());
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	+	shouldThrow();
1294	+	} catch (FJException success) {
1295	+	checkCompletedAbnormally(f, success);
1296	+	}
1297	+	}};
1298	+	testInvokeOnPool(singletonPool(), a);
1299	+	}
1300	+
1301	+	/**
1302	+	* get of a forked task throws exception when task completes abnormally
1303	+	*/
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	+	testInvokeOnPool(singletonPool(), a);
1319	+	}
1320	+
1321	+	/**
1322	+	* timed get of a forked task throws exception when task completes abnormally
1323	+	*/
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	+	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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