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root/jsr166/jsr166/src/test/tck/ForkJoinTaskTest.java

Comparing jsr166/src/test/tck/ForkJoinTaskTest.java (file contents):
Revision 1.7 by jsr166, Tue Dec 1 23:01:44 2009 UTC vs.
Revision 1.50 by jsr166, Wed Aug 10 01:28:14 2016 UTC

#	Line 1 | Line 1
1		/*
2		* Written by Doug Lea with assistance from members of JCP JSR-166
3		* Expert Group and released to the public domain, as explained at
4	<	* http://creativecommons.org/licenses/publicdomain
4	>	* http://creativecommons.org/publicdomain/zero/1.0/
5		*/
6	<	import junit.framework.*;
7	<	import java.util.concurrent.*;
8	<	import java.util.concurrent.atomic.*;
9	<	import java.util.*;
6	>
7	>	import static java.util.concurrent.TimeUnit.MILLISECONDS;
8	>	import static java.util.concurrent.TimeUnit.SECONDS;
9	>
10	>	import java.util.Arrays;
11	>	import java.util.Collections;
12	>	import java.util.HashSet;
13	>	import java.util.List;
14	>	import java.util.concurrent.CancellationException;
15	>	import java.util.concurrent.ExecutionException;
16	>	import java.util.concurrent.ForkJoinPool;
17	>	import java.util.concurrent.ForkJoinTask;
18	>	import java.util.concurrent.RecursiveAction;
19	>	import java.util.concurrent.TimeoutException;
20	>	import java.util.concurrent.atomic.AtomicIntegerFieldUpdater;
21	>
22	>	import junit.framework.Test;
23	>	import junit.framework.TestSuite;
24
25		public class ForkJoinTaskTest extends JSR166TestCase {
26
27		public static void main(String[] args) {
28	<	junit.textui.TestRunner.run (suite());
28	>	main(suite(), args);
29		}
30	+
31		public static Test suite() {
32		return new TestSuite(ForkJoinTaskTest.class);
33		}
34
35	<	/**
35	>	// Runs with "mainPool" use > 1 thread. singletonPool tests use 1
36	>	static final int mainPoolSize =
37	>	Math.max(2, Runtime.getRuntime().availableProcessors());
38	>
39	>	private static ForkJoinPool mainPool() {
40	>	return new ForkJoinPool(mainPoolSize);
41	>	}
42	>
43	>	private static ForkJoinPool singletonPool() {
44	>	return new ForkJoinPool(1);
45	>	}
46	>
47	>	private static ForkJoinPool asyncSingletonPool() {
48	>	return new ForkJoinPool(1,
49	>	ForkJoinPool.defaultForkJoinWorkerThreadFactory,
50	>	null, true);
51	>	}
52	>
53	>	private void testInvokeOnPool(ForkJoinPool pool, RecursiveAction a) {
54	>	try (PoolCleaner cleaner = cleaner(pool)) {
55	>	assertFalse(a.isDone());
56	>	assertFalse(a.isCompletedNormally());
57	>	assertFalse(a.isCompletedAbnormally());
58	>	assertFalse(a.isCancelled());
59	>	assertNull(a.getException());
60	>	assertNull(a.getRawResult());
61	>
62	>	assertNull(pool.invoke(a));
63	>
64	>	assertTrue(a.isDone());
65	>	assertTrue(a.isCompletedNormally());
66	>	assertFalse(a.isCompletedAbnormally());
67	>	assertFalse(a.isCancelled());
68	>	assertNull(a.getException());
69	>	assertNull(a.getRawResult());
70	>	}
71	>	}
72	>
73	>	void checkNotDone(ForkJoinTask a) {
74	>	assertFalse(a.isDone());
75	>	assertFalse(a.isCompletedNormally());
76	>	assertFalse(a.isCompletedAbnormally());
77	>	assertFalse(a.isCancelled());
78	>	assertNull(a.getException());
79	>	assertNull(a.getRawResult());
80	>
81	>	try {
82	>	a.get(0L, SECONDS);
83	>	shouldThrow();
84	>	} catch (TimeoutException success) {
85	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
86	>	}
87	>
88	>	<T> void checkCompletedNormally(ForkJoinTask<T> a) {
89	>	checkCompletedNormally(a, null);
90	>	}
91	>
92	>	<T> void checkCompletedNormally(ForkJoinTask<T> a, T expected) {
93	>	assertTrue(a.isDone());
94	>	assertFalse(a.isCancelled());
95	>	assertTrue(a.isCompletedNormally());
96	>	assertFalse(a.isCompletedAbnormally());
97	>	assertNull(a.getException());
98	>	assertSame(expected, a.getRawResult());
99	>
100	>	{
101	>	Thread.currentThread().interrupt();
102	>	long startTime = System.nanoTime();
103	>	assertSame(expected, a.join());
104	>	assertTrue(millisElapsedSince(startTime) < SMALL_DELAY_MS);
105	>	Thread.interrupted();
106	>	}
107	>
108	>	{
109	>	Thread.currentThread().interrupt();
110	>	long startTime = System.nanoTime();
111	>	a.quietlyJoin();        // should be no-op
112	>	assertTrue(millisElapsedSince(startTime) < SMALL_DELAY_MS);
113	>	Thread.interrupted();
114	>	}
115	>
116	>	assertFalse(a.cancel(false));
117	>	assertFalse(a.cancel(true));
118	>	try {
119	>	assertSame(expected, a.get());
120	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
121	>	try {
122	>	assertSame(expected, a.get(5L, SECONDS));
123	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
124	>	}
125	>
126	>	void checkCancelled(ForkJoinTask a) {
127	>	assertTrue(a.isDone());
128	>	assertTrue(a.isCancelled());
129	>	assertFalse(a.isCompletedNormally());
130	>	assertTrue(a.isCompletedAbnormally());
131	>	assertTrue(a.getException() instanceof CancellationException);
132	>	assertNull(a.getRawResult());
133	>	assertTrue(a.cancel(false));
134	>	assertTrue(a.cancel(true));
135	>
136	>	try {
137	>	Thread.currentThread().interrupt();
138	>	a.join();
139	>	shouldThrow();
140	>	} catch (CancellationException success) {
141	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
142	>	Thread.interrupted();
143	>
144	>	{
145	>	long startTime = System.nanoTime();
146	>	a.quietlyJoin();        // should be no-op
147	>	assertTrue(millisElapsedSince(startTime) < SMALL_DELAY_MS);
148	>	}
149	>
150	>	try {
151	>	a.get();
152	>	shouldThrow();
153	>	} catch (CancellationException success) {
154	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
155	>
156	>	try {
157	>	a.get(5L, SECONDS);
158	>	shouldThrow();
159	>	} catch (CancellationException success) {
160	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
161	>	}
162	>
163	>	void checkCompletedAbnormally(ForkJoinTask a, Throwable t) {
164	>	assertTrue(a.isDone());
165	>	assertFalse(a.isCancelled());
166	>	assertFalse(a.isCompletedNormally());
167	>	assertTrue(a.isCompletedAbnormally());
168	>	assertSame(t.getClass(), a.getException().getClass());
169	>	assertNull(a.getRawResult());
170	>	assertFalse(a.cancel(false));
171	>	assertFalse(a.cancel(true));
172	>
173	>	try {
174	>	Thread.currentThread().interrupt();
175	>	a.join();
176	>	shouldThrow();
177	>	} catch (Throwable expected) {
178	>	assertSame(t.getClass(), expected.getClass());
179	>	}
180	>	Thread.interrupted();
181	>
182	>	{
183	>	long startTime = System.nanoTime();
184	>	a.quietlyJoin();        // should be no-op
185	>	assertTrue(millisElapsedSince(startTime) < SMALL_DELAY_MS);
186	>	}
187	>
188	>	try {
189	>	a.get();
190	>	shouldThrow();
191	>	} catch (ExecutionException success) {
192	>	assertSame(t.getClass(), success.getCause().getClass());
193	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
194	>
195	>	try {
196	>	a.get(5L, SECONDS);
197	>	shouldThrow();
198	>	} catch (ExecutionException success) {
199	>	assertSame(t.getClass(), success.getCause().getClass());
200	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
201	>	}
202	>
203	>	/*
204		* Testing coverage notes:
205		*
206		* To test extension methods and overrides, most tests use
#	Line 25 | Line 208 | public class ForkJoinTaskTest extends JS
208		* differently than supplied Recursive forms.
209		*/
210
211	<	static final ForkJoinPool mainPool = new ForkJoinPool();
29	<	static final ForkJoinPool singletonPool = new ForkJoinPool(1);
30	<	static final ForkJoinPool asyncSingletonPool = new ForkJoinPool(1);
31	<	static {
32	<	asyncSingletonPool.setAsyncMode(true);
33	<	}
34	<
35	<	static final class FJException extends RuntimeException {
211	>	public static final class FJException extends RuntimeException {
212		FJException() { super(); }
213		}
214
215	<	static abstract class BinaryAsyncAction extends ForkJoinTask<Void> {
215	>	abstract static class BinaryAsyncAction extends ForkJoinTask<Void> {
216		private volatile int controlState;
217
218		static final AtomicIntegerFieldUpdater<BinaryAsyncAction> controlStateUpdater =
219		AtomicIntegerFieldUpdater.newUpdater(BinaryAsyncAction.class,
220		"controlState");
221
222	<	private BinaryAsyncAction parent;
222	>	private volatile BinaryAsyncAction parent;
223
224	<	private BinaryAsyncAction sibling;
224	>	private volatile BinaryAsyncAction sibling;
225
226		protected BinaryAsyncAction() {
227		}
#	Line 80 | Line 256 | public class ForkJoinTaskTest extends JS
256		super.completeExceptionally(ex);
257		}
258
259	+	public boolean cancel(boolean mayInterruptIfRunning) {
260	+	if (super.cancel(mayInterruptIfRunning)) {
261	+	completeExceptionally(new FJException());
262	+	return true;
263	+	}
264	+	return false;
265	+	}
266	+
267		public final void complete() {
268		BinaryAsyncAction a = this;
269		for (;;) {
#	Line 101 | Line 285 | public class ForkJoinTaskTest extends JS
285		}
286
287		public final void completeExceptionally(Throwable ex) {
288	<	BinaryAsyncAction a = this;
105	<	while (!a.isCompletedAbnormally()) {
288	>	for (BinaryAsyncAction a = this;;) {
289		a.completeThisExceptionally(ex);
290		BinaryAsyncAction s = a.sibling;
291	<	if (s != null)
292	<	s.cancel(false);
293	<	if (!a.onException() || (a = a.parent) == null)
291	>	if (s != null && !s.isDone())
292	>	s.completeExceptionally(ex);
293	>	if ((a = a.parent) == null)
294		break;
295		}
296		}
#	Line 157 | Line 340 | public class ForkJoinTaskTest extends JS
340		public final boolean exec() {
341		AsyncFib f = this;
342		int n = f.number;
343	<	if (n > 1) {
344	<	while (n > 1) {
345	<	AsyncFib p = f;
346	<	AsyncFib r = new AsyncFib(n - 2);
347	<	f = new AsyncFib(--n);
348	<	p.linkSubtasks(r, f);
166	<	r.fork();
167	<	}
168	<	f.number = n;
343	>	while (n > 1) {
344	>	AsyncFib p = f;
345	>	AsyncFib r = new AsyncFib(n - 2);
346	>	f = new AsyncFib(--n);
347	>	p.linkSubtasks(r, f);
348	>	r.fork();
349		}
350		f.complete();
351		return false;
#	Line 176 | Line 356 | public class ForkJoinTaskTest extends JS
356		}
357		}
358
179	–
359		static final class FailingAsyncFib extends BinaryAsyncAction {
360		int number;
361		public FailingAsyncFib(int n) {
#	Line 186 | Line 365 | public class ForkJoinTaskTest extends JS
365		public final boolean exec() {
366		FailingAsyncFib f = this;
367		int n = f.number;
368	<	if (n > 1) {
369	<	while (n > 1) {
370	<	FailingAsyncFib p = f;
371	<	FailingAsyncFib r = new FailingAsyncFib(n - 2);
372	<	f = new FailingAsyncFib(--n);
373	<	p.linkSubtasks(r, f);
195	<	r.fork();
196	<	}
197	<	f.number = n;
368	>	while (n > 1) {
369	>	FailingAsyncFib p = f;
370	>	FailingAsyncFib r = new FailingAsyncFib(n - 2);
371	>	f = new FailingAsyncFib(--n);
372	>	p.linkSubtasks(r, f);
373	>	r.fork();
374		}
375		f.complete();
376		return false;
#	Line 208 | Line 384 | public class ForkJoinTaskTest extends JS
384		/**
385		* invoke returns when task completes normally.
386		* isCompletedAbnormally and isCancelled return false for normally
387	<	* completed tasks. getRawResult of a RecursiveAction returns null;
212	<	*
387	>	* completed tasks; getRawResult returns null.
388		*/
389		public void testInvoke() {
390	<	RecursiveAction a = new RecursiveAction() {
391	<	public void compute() {
392	<	AsyncFib f = new AsyncFib(8);
393	<	f.invoke();
394	<	threadAssertTrue(f.number == 21);
395	<	threadAssertTrue(f.isDone());
396	<	threadAssertFalse(f.isCancelled());
397	<	threadAssertFalse(f.isCompletedAbnormally());
223	<	threadAssertTrue(f.getRawResult() == null);
224	<	}
225	<	};
226	<	mainPool.invoke(a);
390	>	RecursiveAction a = new CheckedRecursiveAction() {
391	>	protected void realCompute() {
392	>	AsyncFib f = new AsyncFib(8);
393	>	assertNull(f.invoke());
394	>	assertEquals(21, f.number);
395	>	checkCompletedNormally(f);
396	>	}};
397	>	testInvokeOnPool(mainPool(), a);
398		}
399
400		/**
#	Line 232 | Line 403 | public class ForkJoinTaskTest extends JS
403		* completed tasks
404		*/
405		public void testQuietlyInvoke() {
406	<	RecursiveAction a = new RecursiveAction() {
407	<	public void compute() {
408	<	AsyncFib f = new AsyncFib(8);
409	<	f.quietlyInvoke();
410	<	threadAssertTrue(f.number == 21);
411	<	threadAssertTrue(f.isDone());
412	<	threadAssertFalse(f.isCancelled());
413	<	threadAssertFalse(f.isCompletedAbnormally());
243	<	threadAssertTrue(f.getRawResult() == null);
244	<	}
245	<	};
246	<	mainPool.invoke(a);
406	>	RecursiveAction a = new CheckedRecursiveAction() {
407	>	protected void realCompute() {
408	>	AsyncFib f = new AsyncFib(8);
409	>	f.quietlyInvoke();
410	>	assertEquals(21, f.number);
411	>	checkCompletedNormally(f);
412	>	}};
413	>	testInvokeOnPool(mainPool(), a);
414		}
415
416		/**
417		* join of a forked task returns when task completes
418		*/
419		public void testForkJoin() {
420	<	RecursiveAction a = new RecursiveAction() {
421	<	public void compute() {
422	<	AsyncFib f = new AsyncFib(8);
423	<	f.fork();
424	<	f.join();
425	<	threadAssertTrue(f.number == 21);
426	<	threadAssertTrue(f.isDone());
427	<	threadAssertTrue(f.getRawResult() == null);
428	<	}
262	<	};
263	<	mainPool.invoke(a);
420	>	RecursiveAction a = new CheckedRecursiveAction() {
421	>	protected void realCompute() {
422	>	AsyncFib f = new AsyncFib(8);
423	>	assertSame(f, f.fork());
424	>	assertNull(f.join());
425	>	assertEquals(21, f.number);
426	>	checkCompletedNormally(f);
427	>	}};
428	>	testInvokeOnPool(mainPool(), a);
429		}
430
431		/**
432		* get of a forked task returns when task completes
433		*/
434		public void testForkGet() {
435	<	RecursiveAction a = new RecursiveAction() {
436	<	public void compute() {
437	<	try {
438	<	AsyncFib f = new AsyncFib(8);
439	<	f.fork();
440	<	f.get();
441	<	threadAssertTrue(f.number == 21);
442	<	threadAssertTrue(f.isDone());
443	<	} catch (Exception ex) {
279	<	unexpectedException(ex);
280	<	}
281	<	}
282	<	};
283	<	mainPool.invoke(a);
435	>	RecursiveAction a = new CheckedRecursiveAction() {
436	>	protected void realCompute() throws Exception {
437	>	AsyncFib f = new AsyncFib(8);
438	>	assertSame(f, f.fork());
439	>	assertNull(f.get());
440	>	assertEquals(21, f.number);
441	>	checkCompletedNormally(f);
442	>	}};
443	>	testInvokeOnPool(mainPool(), a);
444		}
445
446		/**
447		* timed get of a forked task returns when task completes
448		*/
449		public void testForkTimedGet() {
450	<	RecursiveAction a = new RecursiveAction() {
451	<	public void compute() {
452	<	try {
453	<	AsyncFib f = new AsyncFib(8);
454	<	f.fork();
455	<	f.get(LONG_DELAY_MS, TimeUnit.MILLISECONDS);
456	<	threadAssertTrue(f.number == 21);
457	<	threadAssertTrue(f.isDone());
458	<	} catch (Exception ex) {
299	<	unexpectedException(ex);
300	<	}
301	<	}
302	<	};
303	<	mainPool.invoke(a);
450	>	RecursiveAction a = new CheckedRecursiveAction() {
451	>	protected void realCompute() throws Exception {
452	>	AsyncFib f = new AsyncFib(8);
453	>	assertSame(f, f.fork());
454	>	assertNull(f.get(LONG_DELAY_MS, MILLISECONDS));
455	>	assertEquals(21, f.number);
456	>	checkCompletedNormally(f);
457	>	}};
458	>	testInvokeOnPool(mainPool(), a);
459		}
460
461		/**
462		* timed get with null time unit throws NPE
463		*/
464		public void testForkTimedGetNPE() {
465	<	RecursiveAction a = new RecursiveAction() {
466	<	public void compute() {
467	<	try {
468	<	AsyncFib f = new AsyncFib(8);
469	<	f.fork();
470	<	f.get(5L, null);
471	<	shouldThrow();
472	<	} catch (NullPointerException success) {
473	<	} catch (Exception ex) {
474	<	unexpectedException(ex);
320	<	}
321	<	}
322	<	};
323	<	mainPool.invoke(a);
324	<	}
325	<
326	<	/**
327	<	* helpJoin of a forked task returns when task completes
328	<	*/
329	<	public void testForkHelpJoin() {
330	<	RecursiveAction a = new RecursiveAction() {
331	<	public void compute() {
332	<	AsyncFib f = new AsyncFib(8);
333	<	f.fork();
334	<	f.helpJoin();
335	<	threadAssertTrue(f.number == 21);
336	<	threadAssertTrue(f.isDone());
337	<	}
338	<	};
339	<	mainPool.invoke(a);
465	>	RecursiveAction a = new CheckedRecursiveAction() {
466	>	protected void realCompute() throws Exception {
467	>	AsyncFib f = new AsyncFib(8);
468	>	assertSame(f, f.fork());
469	>	try {
470	>	f.get(5L, null);
471	>	shouldThrow();
472	>	} catch (NullPointerException success) {}
473	>	}};
474	>	testInvokeOnPool(mainPool(), a);
475		}
476
477		/**
478		* quietlyJoin of a forked task returns when task completes
479		*/
480		public void testForkQuietlyJoin() {
481	<	RecursiveAction a = new RecursiveAction() {
482	<	public void compute() {
483	<	AsyncFib f = new AsyncFib(8);
484	<	f.fork();
485	<	f.quietlyJoin();
486	<	threadAssertTrue(f.number == 21);
487	<	threadAssertTrue(f.isDone());
488	<	}
489	<	};
355	<	mainPool.invoke(a);
356	<	}
357	<
358	<
359	<	/**
360	<	* quietlyHelpJoin of a forked task returns when task completes
361	<	*/
362	<	public void testForkQuietlyHelpJoin() {
363	<	RecursiveAction a = new RecursiveAction() {
364	<	public void compute() {
365	<	AsyncFib f = new AsyncFib(8);
366	<	f.fork();
367	<	f.quietlyHelpJoin();
368	<	threadAssertTrue(f.number == 21);
369	<	threadAssertTrue(f.isDone());
370	<	}
371	<	};
372	<	mainPool.invoke(a);
481	>	RecursiveAction a = new CheckedRecursiveAction() {
482	>	protected void realCompute() {
483	>	AsyncFib f = new AsyncFib(8);
484	>	assertSame(f, f.fork());
485	>	f.quietlyJoin();
486	>	assertEquals(21, f.number);
487	>	checkCompletedNormally(f);
488	>	}};
489	>	testInvokeOnPool(mainPool(), a);
490		}
491
375	–
492		/**
493		* helpQuiesce returns when tasks are complete.
494		* getQueuedTaskCount returns 0 when quiescent
495		*/
496		public void testForkHelpQuiesce() {
497	<	RecursiveAction a = new RecursiveAction() {
498	<	public void compute() {
499	<	AsyncFib f = new AsyncFib(8);
500	<	f.fork();
501	<	f.helpQuiesce();
502	<	threadAssertTrue(f.number == 21);
503	<	threadAssertTrue(f.isDone());
504	<	threadAssertTrue(getQueuedTaskCount() == 0);
505	<	}
506	<	};
391	<	mainPool.invoke(a);
497	>	RecursiveAction a = new CheckedRecursiveAction() {
498	>	protected void realCompute() {
499	>	AsyncFib f = new AsyncFib(8);
500	>	assertSame(f, f.fork());
501	>	helpQuiesce();
502	>	assertEquals(21, f.number);
503	>	assertEquals(0, getQueuedTaskCount());
504	>	checkCompletedNormally(f);
505	>	}};
506	>	testInvokeOnPool(mainPool(), a);
507		}
508
394	–
509		/**
510		* invoke task throws exception when task completes abnormally
511		*/
512		public void testAbnormalInvoke() {
513	<	RecursiveAction a = new RecursiveAction() {
514	<	public void compute() {
515	<	try {
516	<	FailingAsyncFib f = new FailingAsyncFib(8);
517	<	f.invoke();
518	<	shouldThrow();
519	<	} catch (FJException success) {
520	<	}
513	>	RecursiveAction a = new CheckedRecursiveAction() {
514	>	protected void realCompute() {
515	>	FailingAsyncFib f = new FailingAsyncFib(8);
516	>	try {
517	>	f.invoke();
518	>	shouldThrow();
519	>	} catch (FJException success) {
520	>	checkCompletedAbnormally(f, success);
521		}
522	<	};
523	<	mainPool.invoke(a);
522	>	}};
523	>	testInvokeOnPool(mainPool(), a);
524		}
525
526		/**
527		* quietlyInvoke task returns when task completes abnormally
528		*/
529		public void testAbnormalQuietlyInvoke() {
530	<	RecursiveAction a = new RecursiveAction() {
531	<	public void compute() {
532	<	FailingAsyncFib f = new FailingAsyncFib(8);
533	<	f.quietlyInvoke();
534	<	threadAssertTrue(f.isDone());
535	<	}
536	<	};
537	<	mainPool.invoke(a);
530	>	RecursiveAction a = new CheckedRecursiveAction() {
531	>	protected void realCompute() {
532	>	FailingAsyncFib f = new FailingAsyncFib(8);
533	>	f.quietlyInvoke();
534	>	assertTrue(f.getException() instanceof FJException);
535	>	checkCompletedAbnormally(f, f.getException());
536	>	}};
537	>	testInvokeOnPool(mainPool(), a);
538		}
539
540		/**
541		* join of a forked task throws exception when task completes abnormally
542		*/
543		public void testAbnormalForkJoin() {
544	<	RecursiveAction a = new RecursiveAction() {
545	<	public void compute() {
546	<	try {
547	<	FailingAsyncFib f = new FailingAsyncFib(8);
548	<	f.fork();
549	<	f.join();
550	<	shouldThrow();
551	<	} catch (FJException success) {
552	<	}
544	>	RecursiveAction a = new CheckedRecursiveAction() {
545	>	protected void realCompute() {
546	>	FailingAsyncFib f = new FailingAsyncFib(8);
547	>	assertSame(f, f.fork());
548	>	try {
549	>	f.join();
550	>	shouldThrow();
551	>	} catch (FJException success) {
552	>	checkCompletedAbnormally(f, success);
553		}
554	<	};
555	<	mainPool.invoke(a);
554	>	}};
555	>	testInvokeOnPool(mainPool(), a);
556		}
557
558		/**
559		* get of a forked task throws exception when task completes abnormally
560		*/
561		public void testAbnormalForkGet() {
562	<	RecursiveAction a = new RecursiveAction() {
563	<	public void compute() {
564	<	try {
565	<	FailingAsyncFib f = new FailingAsyncFib(8);
566	<	f.fork();
567	<	f.get();
568	<	shouldThrow();
569	<	} catch (ExecutionException success) {
570	<	} catch (Exception ex) {
571	<	unexpectedException(ex);
572	<	}
562	>	RecursiveAction a = new CheckedRecursiveAction() {
563	>	protected void realCompute() throws Exception {
564	>	FailingAsyncFib f = new FailingAsyncFib(8);
565	>	assertSame(f, f.fork());
566	>	try {
567	>	f.get();
568	>	shouldThrow();
569	>	} catch (ExecutionException success) {
570	>	Throwable cause = success.getCause();
571	>	assertTrue(cause instanceof FJException);
572	>	checkCompletedAbnormally(f, cause);
573		}
574	<	};
575	<	mainPool.invoke(a);
574	>	}};
575	>	testInvokeOnPool(mainPool(), a);
576		}
577
578		/**
579		* timed get of a forked task throws exception when task completes abnormally
580		*/
581		public void testAbnormalForkTimedGet() {
582	<	RecursiveAction a = new RecursiveAction() {
583	<	public void compute() {
584	<	try {
585	<	FailingAsyncFib f = new FailingAsyncFib(8);
586	<	f.fork();
587	<	f.get(LONG_DELAY_MS, TimeUnit.MILLISECONDS);
588	<	shouldThrow();
589	<	} catch (ExecutionException success) {
590	<	} catch (Exception ex) {
591	<	unexpectedException(ex);
592	<	}
479	<	}
480	<	};
481	<	mainPool.invoke(a);
482	<	}
483	<
484	<	/**
485	<	* join of a forked task throws exception when task completes abnormally
486	<	*/
487	<	public void testAbnormalForkHelpJoin() {
488	<	RecursiveAction a = new RecursiveAction() {
489	<	public void compute() {
490	<	try {
491	<	FailingAsyncFib f = new FailingAsyncFib(8);
492	<	f.fork();
493	<	f.helpJoin();
494	<	shouldThrow();
495	<	} catch (FJException success) {
496	<	}
497	<	}
498	<	};
499	<	mainPool.invoke(a);
500	<	}
501	<
502	<	/**
503	<	* quietlyHelpJoin of a forked task returns when task completes abnormally.
504	<	* getException of failed task returns its exception.
505	<	* isCompletedAbnormally of a failed task returns true.
506	<	* isCancelled of a failed uncancelled task returns false
507	<	*/
508	<	public void testAbnormalForkQuietlyHelpJoin() {
509	<	RecursiveAction a = new RecursiveAction() {
510	<	public void compute() {
511	<	FailingAsyncFib f = new FailingAsyncFib(8);
512	<	f.fork();
513	<	f.quietlyHelpJoin();
514	<	threadAssertTrue(f.isDone());
515	<	threadAssertTrue(f.isCompletedAbnormally());
516	<	threadAssertFalse(f.isCancelled());
517	<	threadAssertTrue(f.getException() instanceof FJException);
582	>	RecursiveAction a = new CheckedRecursiveAction() {
583	>	protected void realCompute() throws Exception {
584	>	FailingAsyncFib f = new FailingAsyncFib(8);
585	>	assertSame(f, f.fork());
586	>	try {
587	>	f.get(LONG_DELAY_MS, MILLISECONDS);
588	>	shouldThrow();
589	>	} catch (ExecutionException success) {
590	>	Throwable cause = success.getCause();
591	>	assertTrue(cause instanceof FJException);
592	>	checkCompletedAbnormally(f, cause);
593		}
594	<	};
595	<	mainPool.invoke(a);
594	>	}};
595	>	testInvokeOnPool(mainPool(), a);
596		}
597
598		/**
599		* quietlyJoin of a forked task returns when task completes abnormally
600		*/
601		public void testAbnormalForkQuietlyJoin() {
602	<	RecursiveAction a = new RecursiveAction() {
603	<	public void compute() {
604	<	FailingAsyncFib f = new FailingAsyncFib(8);
605	<	f.fork();
606	<	f.quietlyJoin();
607	<	threadAssertTrue(f.isDone());
608	<	threadAssertTrue(f.isCompletedAbnormally());
609	<	threadAssertTrue(f.getException() instanceof FJException);
610	<	}
536	<	};
537	<	mainPool.invoke(a);
602	>	RecursiveAction a = new CheckedRecursiveAction() {
603	>	protected void realCompute() {
604	>	FailingAsyncFib f = new FailingAsyncFib(8);
605	>	assertSame(f, f.fork());
606	>	f.quietlyJoin();
607	>	assertTrue(f.getException() instanceof FJException);
608	>	checkCompletedAbnormally(f, f.getException());
609	>	}};
610	>	testInvokeOnPool(mainPool(), a);
611		}
612
613		/**
614		* invoke task throws exception when task cancelled
615		*/
616		public void testCancelledInvoke() {
617	<	RecursiveAction a = new RecursiveAction() {
618	<	public void compute() {
619	<	try {
620	<	AsyncFib f = new AsyncFib(8);
621	<	f.cancel(true);
622	<	f.invoke();
623	<	shouldThrow();
624	<	} catch (CancellationException success) {
625	<	}
617	>	RecursiveAction a = new CheckedRecursiveAction() {
618	>	protected void realCompute() {
619	>	AsyncFib f = new AsyncFib(8);
620	>	assertTrue(f.cancel(true));
621	>	try {
622	>	f.invoke();
623	>	shouldThrow();
624	>	} catch (CancellationException success) {
625	>	checkCancelled(f);
626		}
627	<	};
628	<	mainPool.invoke(a);
627	>	}};
628	>	testInvokeOnPool(mainPool(), a);
629		}
630
631		/**
632		* join of a forked task throws exception when task cancelled
633		*/
634		public void testCancelledForkJoin() {
635	<	RecursiveAction a = new RecursiveAction() {
636	<	public void compute() {
637	<	try {
638	<	AsyncFib f = new AsyncFib(8);
639	<	f.cancel(true);
640	<	f.fork();
641	<	f.join();
642	<	shouldThrow();
643	<	} catch (CancellationException success) {
644	<	}
635	>	RecursiveAction a = new CheckedRecursiveAction() {
636	>	protected void realCompute() {
637	>	AsyncFib f = new AsyncFib(8);
638	>	assertTrue(f.cancel(true));
639	>	assertSame(f, f.fork());
640	>	try {
641	>	f.join();
642	>	shouldThrow();
643	>	} catch (CancellationException success) {
644	>	checkCancelled(f);
645		}
646	<	};
647	<	mainPool.invoke(a);
646	>	}};
647	>	testInvokeOnPool(mainPool(), a);
648		}
649
650		/**
651		* get of a forked task throws exception when task cancelled
652		*/
653		public void testCancelledForkGet() {
654	<	RecursiveAction a = new RecursiveAction() {
655	<	public void compute() {
656	<	try {
657	<	AsyncFib f = new AsyncFib(8);
658	<	f.cancel(true);
659	<	f.fork();
660	<	f.get();
661	<	shouldThrow();
662	<	} catch (CancellationException success) {
663	<	} catch (Exception ex) {
591	<	unexpectedException(ex);
592	<	}
654	>	RecursiveAction a = new CheckedRecursiveAction() {
655	>	protected void realCompute() throws Exception {
656	>	AsyncFib f = new AsyncFib(8);
657	>	assertTrue(f.cancel(true));
658	>	assertSame(f, f.fork());
659	>	try {
660	>	f.get();
661	>	shouldThrow();
662	>	} catch (CancellationException success) {
663	>	checkCancelled(f);
664		}
665	<	};
666	<	mainPool.invoke(a);
665	>	}};
666	>	testInvokeOnPool(mainPool(), a);
667		}
668
669		/**
670		* timed get of a forked task throws exception when task cancelled
671		*/
672	<	public void testCancelledForkTimedGet() {
673	<	RecursiveAction a = new RecursiveAction() {
674	<	public void compute() {
675	<	try {
676	<	AsyncFib f = new AsyncFib(8);
677	<	f.cancel(true);
678	<	f.fork();
679	<	f.get(LONG_DELAY_MS, TimeUnit.MILLISECONDS);
680	<	shouldThrow();
681	<	} catch (CancellationException success) {
682	<	} catch (Exception ex) {
612	<	unexpectedException(ex);
613	<	}
614	<	}
615	<	};
616	<	mainPool.invoke(a);
617	<	}
618	<
619	<	/**
620	<	* join of a forked task throws exception when task cancelled
621	<	*/
622	<	public void testCancelledForkHelpJoin() {
623	<	RecursiveAction a = new RecursiveAction() {
624	<	public void compute() {
625	<	try {
626	<	AsyncFib f = new AsyncFib(8);
627	<	f.cancel(true);
628	<	f.fork();
629	<	f.helpJoin();
630	<	shouldThrow();
631	<	} catch (CancellationException success) {
632	<	}
633	<	}
634	<	};
635	<	mainPool.invoke(a);
636	<	}
637	<
638	<	/**
639	<	* quietlyHelpJoin of a forked task returns when task cancelled.
640	<	* getException of cancelled task returns its exception.
641	<	* isCompletedAbnormally of a cancelled task returns true.
642	<	* isCancelled of a cancelled task returns true
643	<	*/
644	<	public void testCancelledForkQuietlyHelpJoin() {
645	<	RecursiveAction a = new RecursiveAction() {
646	<	public void compute() {
647	<	AsyncFib f = new AsyncFib(8);
648	<	f.cancel(true);
649	<	f.fork();
650	<	f.quietlyHelpJoin();
651	<	threadAssertTrue(f.isDone());
652	<	threadAssertTrue(f.isCompletedAbnormally());
653	<	threadAssertTrue(f.isCancelled());
654	<	threadAssertTrue(f.getException() instanceof CancellationException);
672	>	public void testCancelledForkTimedGet() throws Exception {
673	>	RecursiveAction a = new CheckedRecursiveAction() {
674	>	protected void realCompute() throws Exception {
675	>	AsyncFib f = new AsyncFib(8);
676	>	assertTrue(f.cancel(true));
677	>	assertSame(f, f.fork());
678	>	try {
679	>	f.get(LONG_DELAY_MS, MILLISECONDS);
680	>	shouldThrow();
681	>	} catch (CancellationException success) {
682	>	checkCancelled(f);
683		}
684	<	};
685	<	mainPool.invoke(a);
684	>	}};
685	>	testInvokeOnPool(mainPool(), a);
686		}
687
688		/**
689		* quietlyJoin of a forked task returns when task cancelled
690		*/
691		public void testCancelledForkQuietlyJoin() {
692	<	RecursiveAction a = new RecursiveAction() {
693	<	public void compute() {
694	<	AsyncFib f = new AsyncFib(8);
695	<	f.cancel(true);
696	<	f.fork();
697	<	f.quietlyJoin();
698	<	threadAssertTrue(f.isDone());
699	<	threadAssertTrue(f.isCompletedAbnormally());
700	<	threadAssertTrue(f.getException() instanceof CancellationException);
673	<	}
674	<	};
675	<	mainPool.invoke(a);
692	>	RecursiveAction a = new CheckedRecursiveAction() {
693	>	protected void realCompute() {
694	>	AsyncFib f = new AsyncFib(8);
695	>	assertTrue(f.cancel(true));
696	>	assertSame(f, f.fork());
697	>	f.quietlyJoin();
698	>	checkCancelled(f);
699	>	}};
700	>	testInvokeOnPool(mainPool(), a);
701		}
702
703		/**
704		* getPool of executing task returns its pool
705		*/
706		public void testGetPool() {
707	<	RecursiveAction a = new RecursiveAction() {
708	<	public void compute() {
709	<	threadAssertTrue(getPool() == mainPool);
710	<	}
711	<	};
712	<	mainPool.invoke(a);
707	>	final ForkJoinPool mainPool = mainPool();
708	>	RecursiveAction a = new CheckedRecursiveAction() {
709	>	protected void realCompute() {
710	>	assertSame(mainPool, getPool());
711	>	}};
712	>	testInvokeOnPool(mainPool, a);
713		}
714
715		/**
716		* getPool of non-FJ task returns null
717		*/
718		public void testGetPool2() {
719	<	RecursiveAction a = new RecursiveAction() {
720	<	public void compute() {
721	<	threadAssertTrue(getPool() == null);
722	<	}
723	<	};
699	<	a.invoke();
719	>	RecursiveAction a = new CheckedRecursiveAction() {
720	>	protected void realCompute() {
721	>	assertNull(getPool());
722	>	}};
723	>	assertNull(a.invoke());
724		}
725
726		/**
727		* inForkJoinPool of executing task returns true
728		*/
729		public void testInForkJoinPool() {
730	<	RecursiveAction a = new RecursiveAction() {
731	<	public void compute() {
732	<	threadAssertTrue(inForkJoinPool());
733	<	}
734	<	};
711	<	mainPool.invoke(a);
730	>	RecursiveAction a = new CheckedRecursiveAction() {
731	>	protected void realCompute() {
732	>	assertTrue(inForkJoinPool());
733	>	}};
734	>	testInvokeOnPool(mainPool(), a);
735		}
736
737		/**
738		* inForkJoinPool of non-FJ task returns false
739		*/
740		public void testInForkJoinPool2() {
741	<	RecursiveAction a = new RecursiveAction() {
742	<	public void compute() {
743	<	threadAssertTrue(!inForkJoinPool());
744	<	}
745	<	};
723	<	a.invoke();
741	>	RecursiveAction a = new CheckedRecursiveAction() {
742	>	protected void realCompute() {
743	>	assertFalse(inForkJoinPool());
744	>	}};
745	>	assertNull(a.invoke());
746		}
747
748		/**
749		* setRawResult(null) succeeds
750		*/
751		public void testSetRawResult() {
752	<	RecursiveAction a = new RecursiveAction() {
753	<	public void compute() {
754	<	setRawResult(null);
755	<	}
756	<	};
757	<	a.invoke();
752	>	RecursiveAction a = new CheckedRecursiveAction() {
753	>	protected void realCompute() {
754	>	setRawResult(null);
755	>	assertNull(getRawResult());
756	>	}};
757	>	assertNull(a.invoke());
758		}
759
760		/**
761		* invoke task throws exception after invoking completeExceptionally
762		*/
763		public void testCompleteExceptionally() {
764	<	RecursiveAction a = new RecursiveAction() {
765	<	public void compute() {
766	<	try {
767	<	AsyncFib f = new AsyncFib(8);
768	<	f.completeExceptionally(new FJException());
769	<	f.invoke();
770	<	shouldThrow();
771	<	} catch (FJException success) {
772	<	}
764	>	RecursiveAction a = new CheckedRecursiveAction() {
765	>	protected void realCompute() {
766	>	AsyncFib f = new AsyncFib(8);
767	>	f.completeExceptionally(new FJException());
768	>	try {
769	>	f.invoke();
770	>	shouldThrow();
771	>	} catch (FJException success) {
772	>	checkCompletedAbnormally(f, success);
773	>	}
774	>	}};
775	>	testInvokeOnPool(mainPool(), a);
776	>	}
777	>
778	>	/**
779	>	* completeExceptionally(null) surprisingly has the same effect as
780	>	* completeExceptionally(new RuntimeException())
781	>	*/
782	>	public void testCompleteExceptionally_null() {
783	>	RecursiveAction a = new CheckedRecursiveAction() {
784	>	protected void realCompute() {
785	>	AsyncFib f = new AsyncFib(8);
786	>	f.completeExceptionally(null);
787	>	try {
788	>	f.invoke();
789	>	shouldThrow();
790	>	} catch (RuntimeException success) {
791	>	assertSame(success.getClass(), RuntimeException.class);
792	>	assertNull(success.getCause());
793	>	checkCompletedAbnormally(f, success);
794		}
795	<	};
796	<	mainPool.invoke(a);
795	>	}};
796	>	testInvokeOnPool(mainPool(), a);
797		}
798
799		/**
800		* invokeAll(t1, t2) invokes all task arguments
801		*/
802		public void testInvokeAll2() {
803	<	RecursiveAction a = new RecursiveAction() {
804	<	public void compute() {
805	<	AsyncFib f = new AsyncFib(8);
806	<	AsyncFib g = new AsyncFib(9);
807	<	invokeAll(f, g);
808	<	threadAssertTrue(f.isDone());
809	<	threadAssertTrue(f.number == 21);
810	<	threadAssertTrue(g.isDone());
811	<	threadAssertTrue(g.number == 34);
812	<	}
813	<	};
771	<	mainPool.invoke(a);
803	>	RecursiveAction a = new CheckedRecursiveAction() {
804	>	protected void realCompute() {
805	>	AsyncFib f = new AsyncFib(8);
806	>	AsyncFib g = new AsyncFib(9);
807	>	invokeAll(f, g);
808	>	assertEquals(21, f.number);
809	>	assertEquals(34, g.number);
810	>	checkCompletedNormally(f);
811	>	checkCompletedNormally(g);
812	>	}};
813	>	testInvokeOnPool(mainPool(), a);
814		}
815
816		/**
817		* invokeAll(tasks) with 1 argument invokes task
818		*/
819		public void testInvokeAll1() {
820	<	RecursiveAction a = new RecursiveAction() {
821	<	public void compute() {
822	<	AsyncFib f = new AsyncFib(8);
823	<	invokeAll(f);
824	<	threadAssertTrue(f.isDone());
825	<	threadAssertTrue(f.number == 21);
826	<	}
827	<	};
786	<	mainPool.invoke(a);
820	>	RecursiveAction a = new CheckedRecursiveAction() {
821	>	protected void realCompute() {
822	>	AsyncFib f = new AsyncFib(8);
823	>	invokeAll(f);
824	>	checkCompletedNormally(f);
825	>	assertEquals(21, f.number);
826	>	}};
827	>	testInvokeOnPool(mainPool(), a);
828		}
829
830		/**
831		* invokeAll(tasks) with > 2 argument invokes tasks
832		*/
833		public void testInvokeAll3() {
834	<	RecursiveAction a = new RecursiveAction() {
835	<	public void compute() {
836	<	AsyncFib f = new AsyncFib(8);
837	<	AsyncFib g = new AsyncFib(9);
838	<	AsyncFib h = new AsyncFib(7);
839	<	invokeAll(f, g, h);
840	<	threadAssertTrue(f.isDone());
841	<	threadAssertTrue(f.number == 21);
842	<	threadAssertTrue(g.isDone());
843	<	threadAssertTrue(g.number == 34);
844	<	threadAssertTrue(h.isDone());
845	<	threadAssertTrue(h.number == 13);
846	<	}
847	<	};
807	<	mainPool.invoke(a);
834	>	RecursiveAction a = new CheckedRecursiveAction() {
835	>	protected void realCompute() {
836	>	AsyncFib f = new AsyncFib(8);
837	>	AsyncFib g = new AsyncFib(9);
838	>	AsyncFib h = new AsyncFib(7);
839	>	invokeAll(f, g, h);
840	>	assertEquals(21, f.number);
841	>	assertEquals(34, g.number);
842	>	assertEquals(13, h.number);
843	>	checkCompletedNormally(f);
844	>	checkCompletedNormally(g);
845	>	checkCompletedNormally(h);
846	>	}};
847	>	testInvokeOnPool(mainPool(), a);
848		}
849
850		/**
851		* invokeAll(collection) invokes all tasks in the collection
852		*/
853		public void testInvokeAllCollection() {
854	<	RecursiveAction a = new RecursiveAction() {
855	<	public void compute() {
856	<	AsyncFib f = new AsyncFib(8);
857	<	AsyncFib g = new AsyncFib(9);
858	<	AsyncFib h = new AsyncFib(7);
859	<	HashSet set = new HashSet();
860	<	set.add(f);
861	<	set.add(g);
862	<	set.add(h);
863	<	invokeAll(set);
864	<	threadAssertTrue(f.isDone());
865	<	threadAssertTrue(f.number == 21);
866	<	threadAssertTrue(g.isDone());
867	<	threadAssertTrue(g.number == 34);
868	<	threadAssertTrue(h.isDone());
869	<	threadAssertTrue(h.number == 13);
870	<	}
871	<	};
832	<	mainPool.invoke(a);
854	>	RecursiveAction a = new CheckedRecursiveAction() {
855	>	protected void realCompute() {
856	>	AsyncFib f = new AsyncFib(8);
857	>	AsyncFib g = new AsyncFib(9);
858	>	AsyncFib h = new AsyncFib(7);
859	>	HashSet set = new HashSet();
860	>	set.add(f);
861	>	set.add(g);
862	>	set.add(h);
863	>	invokeAll(set);
864	>	assertEquals(21, f.number);
865	>	assertEquals(34, g.number);
866	>	assertEquals(13, h.number);
867	>	checkCompletedNormally(f);
868	>	checkCompletedNormally(g);
869	>	checkCompletedNormally(h);
870	>	}};
871	>	testInvokeOnPool(mainPool(), a);
872		}
873
835	–
874		/**
875		* invokeAll(tasks) with any null task throws NPE
876		*/
877		public void testInvokeAllNPE() {
878	<	RecursiveAction a = new RecursiveAction() {
879	<	public void compute() {
880	<	try {
881	<	AsyncFib f = new AsyncFib(8);
882	<	AsyncFib g = new AsyncFib(9);
883	<	AsyncFib h = null;
884	<	invokeAll(f, g, h);
885	<	shouldThrow();
886	<	} catch (NullPointerException success) {
887	<	}
888	<	}
851	<	};
852	<	mainPool.invoke(a);
878	>	RecursiveAction a = new CheckedRecursiveAction() {
879	>	protected void realCompute() {
880	>	AsyncFib f = new AsyncFib(8);
881	>	AsyncFib g = new AsyncFib(9);
882	>	AsyncFib h = null;
883	>	try {
884	>	invokeAll(f, g, h);
885	>	shouldThrow();
886	>	} catch (NullPointerException success) {}
887	>	}};
888	>	testInvokeOnPool(mainPool(), a);
889		}
890
891		/**
892		* invokeAll(t1, t2) throw exception if any task does
893		*/
894		public void testAbnormalInvokeAll2() {
895	<	RecursiveAction a = new RecursiveAction() {
896	<	public void compute() {
897	<	try {
898	<	AsyncFib f = new AsyncFib(8);
899	<	FailingAsyncFib g = new FailingAsyncFib(9);
900	<	invokeAll(f, g);
901	<	shouldThrow();
902	<	} catch (FJException success) {
903	<	}
895	>	RecursiveAction a = new CheckedRecursiveAction() {
896	>	protected void realCompute() {
897	>	AsyncFib f = new AsyncFib(8);
898	>	FailingAsyncFib g = new FailingAsyncFib(9);
899	>	ForkJoinTask[] tasks = { f, g };
900	>	shuffle(tasks);
901	>	try {
902	>	invokeAll(tasks);
903	>	shouldThrow();
904	>	} catch (FJException success) {
905	>	checkCompletedAbnormally(g, success);
906		}
907	<	};
908	<	mainPool.invoke(a);
907	>	}};
908	>	testInvokeOnPool(mainPool(), a);
909		}
910
911		/**
912		* invokeAll(tasks) with 1 argument throws exception if task does
913		*/
914		public void testAbnormalInvokeAll1() {
915	<	RecursiveAction a = new RecursiveAction() {
916	<	public void compute() {
917	<	try {
918	<	FailingAsyncFib g = new FailingAsyncFib(9);
919	<	invokeAll(g);
920	<	shouldThrow();
921	<	} catch (FJException success) {
922	<	}
915	>	RecursiveAction a = new CheckedRecursiveAction() {
916	>	protected void realCompute() {
917	>	FailingAsyncFib g = new FailingAsyncFib(9);
918	>	try {
919	>	invokeAll(g);
920	>	shouldThrow();
921	>	} catch (FJException success) {
922	>	checkCompletedAbnormally(g, success);
923		}
924	<	};
925	<	mainPool.invoke(a);
924	>	}};
925	>	testInvokeOnPool(mainPool(), a);
926		}
927
928		/**
929		* invokeAll(tasks) with > 2 argument throws exception if any task does
930		*/
931		public void testAbnormalInvokeAll3() {
932	<	RecursiveAction a = new RecursiveAction() {
933	<	public void compute() {
934	<	try {
935	<	AsyncFib f = new AsyncFib(8);
936	<	FailingAsyncFib g = new FailingAsyncFib(9);
937	<	AsyncFib h = new AsyncFib(7);
938	<	invokeAll(f, g, h);
939	<	shouldThrow();
940	<	} catch (FJException success) {
941	<	}
932	>	RecursiveAction a = new CheckedRecursiveAction() {
933	>	protected void realCompute() {
934	>	AsyncFib f = new AsyncFib(8);
935	>	FailingAsyncFib g = new FailingAsyncFib(9);
936	>	AsyncFib h = new AsyncFib(7);
937	>	ForkJoinTask[] tasks = { f, g, h };
938	>	shuffle(tasks);
939	>	try {
940	>	invokeAll(tasks);
941	>	shouldThrow();
942	>	} catch (FJException success) {
943	>	checkCompletedAbnormally(g, success);
944		}
945	<	};
946	<	mainPool.invoke(a);
945	>	}};
946	>	testInvokeOnPool(mainPool(), a);
947		}
948
949		/**
950	<	* invokeAll(collection)  throws exception if any task does
950	>	* invokeAll(collection) throws exception if any task does
951		*/
952		public void testAbnormalInvokeAllCollection() {
953	<	RecursiveAction a = new RecursiveAction() {
954	<	public void compute() {
955	<	try {
956	<	FailingAsyncFib f = new FailingAsyncFib(8);
957	<	AsyncFib g = new AsyncFib(9);
958	<	AsyncFib h = new AsyncFib(7);
959	<	HashSet set = new HashSet();
960	<	set.add(f);
961	<	set.add(g);
962	<	set.add(h);
963	<	invokeAll(set);
964	<	shouldThrow();
925	<	} catch (FJException success) {
926	<	}
953	>	RecursiveAction a = new CheckedRecursiveAction() {
954	>	protected void realCompute() {
955	>	FailingAsyncFib f = new FailingAsyncFib(8);
956	>	AsyncFib g = new AsyncFib(9);
957	>	AsyncFib h = new AsyncFib(7);
958	>	ForkJoinTask[] tasks = { f, g, h };
959	>	shuffle(tasks);
960	>	try {
961	>	invokeAll(Arrays.asList(tasks));
962	>	shouldThrow();
963	>	} catch (FJException success) {
964	>	checkCompletedAbnormally(f, success);
965		}
966	<	};
967	<	mainPool.invoke(a);
966	>	}};
967	>	testInvokeOnPool(mainPool(), a);
968		}
969
970		/**
#	Line 934 | Line 972 | public class ForkJoinTaskTest extends JS
972		* and suppresses execution
973		*/
974		public void testTryUnfork() {
975	<	RecursiveAction a = new RecursiveAction() {
976	<	public void compute() {
977	<	AsyncFib g = new AsyncFib(9);
978	<	g.fork();
979	<	AsyncFib f = new AsyncFib(8);
980	<	f.fork();
981	<	threadAssertTrue(f.tryUnfork());
982	<	helpQuiesce();
983	<	threadAssertFalse(f.isDone());
984	<	threadAssertTrue(g.isDone());
985	<	}
986	<	};
949	<	singletonPool.invoke(a);
975	>	RecursiveAction a = new CheckedRecursiveAction() {
976	>	protected void realCompute() {
977	>	AsyncFib g = new AsyncFib(9);
978	>	assertSame(g, g.fork());
979	>	AsyncFib f = new AsyncFib(8);
980	>	assertSame(f, f.fork());
981	>	assertTrue(f.tryUnfork());
982	>	helpQuiesce();
983	>	checkNotDone(f);
984	>	checkCompletedNormally(g);
985	>	}};
986	>	testInvokeOnPool(singletonPool(), a);
987		}
988
989		/**
#	Line 954 | Line 991 | public class ForkJoinTaskTest extends JS
991		* there are more tasks than threads
992		*/
993		public void testGetSurplusQueuedTaskCount() {
994	<	RecursiveAction a = new RecursiveAction() {
995	<	public void compute() {
996	<	AsyncFib h = new AsyncFib(7);
997	<	h.fork();
998	<	AsyncFib g = new AsyncFib(9);
999	<	g.fork();
1000	<	AsyncFib f = new AsyncFib(8);
1001	<	f.fork();
1002	<	threadAssertTrue(getSurplusQueuedTaskCount() > 0);
1003	<	helpQuiesce();
1004	<	}
1005	<	};
1006	<	singletonPool.invoke(a);
994	>	RecursiveAction a = new CheckedRecursiveAction() {
995	>	protected void realCompute() {
996	>	AsyncFib h = new AsyncFib(7);
997	>	assertSame(h, h.fork());
998	>	AsyncFib g = new AsyncFib(9);
999	>	assertSame(g, g.fork());
1000	>	AsyncFib f = new AsyncFib(8);
1001	>	assertSame(f, f.fork());
1002	>	assertTrue(getSurplusQueuedTaskCount() > 0);
1003	>	helpQuiesce();
1004	>	assertEquals(0, getSurplusQueuedTaskCount());
1005	>	checkCompletedNormally(f);
1006	>	checkCompletedNormally(g);
1007	>	checkCompletedNormally(h);
1008	>	}};
1009	>	testInvokeOnPool(singletonPool(), a);
1010		}
1011
1012		/**
1013		* peekNextLocalTask returns most recent unexecuted task.
1014		*/
1015		public void testPeekNextLocalTask() {
1016	<	RecursiveAction a = new RecursiveAction() {
1017	<	public void compute() {
1018	<	AsyncFib g = new AsyncFib(9);
1019	<	g.fork();
1020	<	AsyncFib f = new AsyncFib(8);
1021	<	f.fork();
1022	<	threadAssertTrue(peekNextLocalTask() == f);
1023	<	f.join();
1024	<	threadAssertTrue(f.isDone());
1025	<	helpQuiesce();
1026	<	}
1027	<	};
1028	<	singletonPool.invoke(a);
1016	>	RecursiveAction a = new CheckedRecursiveAction() {
1017	>	protected void realCompute() {
1018	>	AsyncFib g = new AsyncFib(9);
1019	>	assertSame(g, g.fork());
1020	>	AsyncFib f = new AsyncFib(8);
1021	>	assertSame(f, f.fork());
1022	>	assertSame(f, peekNextLocalTask());
1023	>	assertNull(f.join());
1024	>	checkCompletedNormally(f);
1025	>	helpQuiesce();
1026	>	checkCompletedNormally(g);
1027	>	}};
1028	>	testInvokeOnPool(singletonPool(), a);
1029		}
1030
1031		/**
1032	<	* pollNextLocalTask returns most recent unexecuted task
1033	<	* without executing it
1032	>	* pollNextLocalTask returns most recent unexecuted task without
1033	>	* executing it
1034		*/
1035		public void testPollNextLocalTask() {
1036	<	RecursiveAction a = new RecursiveAction() {
1037	<	public void compute() {
1038	<	AsyncFib g = new AsyncFib(9);
1039	<	g.fork();
1040	<	AsyncFib f = new AsyncFib(8);
1041	<	f.fork();
1042	<	threadAssertTrue(pollNextLocalTask() == f);
1043	<	helpQuiesce();
1044	<	threadAssertFalse(f.isDone());
1045	<	}
1046	<	};
1047	<	singletonPool.invoke(a);
1036	>	RecursiveAction a = new CheckedRecursiveAction() {
1037	>	protected void realCompute() {
1038	>	AsyncFib g = new AsyncFib(9);
1039	>	assertSame(g, g.fork());
1040	>	AsyncFib f = new AsyncFib(8);
1041	>	assertSame(f, f.fork());
1042	>	assertSame(f, pollNextLocalTask());
1043	>	helpQuiesce();
1044	>	checkNotDone(f);
1045	>	assertEquals(34, g.number);
1046	>	checkCompletedNormally(g);
1047	>	}};
1048	>	testInvokeOnPool(singletonPool(), a);
1049		}
1050
1051		/**
1052	<	* pollTask returns an unexecuted task
1012	<	* without executing it
1052	>	* pollTask returns an unexecuted task without executing it
1053		*/
1054		public void testPollTask() {
1055	<	RecursiveAction a = new RecursiveAction() {
1056	<	public void compute() {
1057	<	AsyncFib g = new AsyncFib(9);
1058	<	g.fork();
1059	<	AsyncFib f = new AsyncFib(8);
1060	<	f.fork();
1061	<	threadAssertTrue(pollTask() == f);
1062	<	helpQuiesce();
1063	<	threadAssertFalse(f.isDone());
1064	<	threadAssertTrue(g.isDone());
1065	<	}
1066	<	};
1027	<	singletonPool.invoke(a);
1055	>	RecursiveAction a = new CheckedRecursiveAction() {
1056	>	protected void realCompute() {
1057	>	AsyncFib g = new AsyncFib(9);
1058	>	assertSame(g, g.fork());
1059	>	AsyncFib f = new AsyncFib(8);
1060	>	assertSame(f, f.fork());
1061	>	assertSame(f, pollTask());
1062	>	helpQuiesce();
1063	>	checkNotDone(f);
1064	>	checkCompletedNormally(g);
1065	>	}};
1066	>	testInvokeOnPool(singletonPool(), a);
1067		}
1068
1069		/**
1070		* peekNextLocalTask returns least recent unexecuted task in async mode
1071		*/
1072		public void testPeekNextLocalTaskAsync() {
1073	<	RecursiveAction a = new RecursiveAction() {
1074	<	public void compute() {
1075	<	AsyncFib g = new AsyncFib(9);
1076	<	g.fork();
1077	<	AsyncFib f = new AsyncFib(8);
1078	<	f.fork();
1079	<	threadAssertTrue(peekNextLocalTask() == g);
1073	>	RecursiveAction a = new CheckedRecursiveAction() {
1074	>	protected void realCompute() {
1075	>	AsyncFib g = new AsyncFib(9);
1076	>	assertSame(g, g.fork());
1077	>	AsyncFib f = new AsyncFib(8);
1078	>	assertSame(f, f.fork());
1079	>	assertSame(g, peekNextLocalTask());
1080	>	assertNull(f.join());
1081	>	helpQuiesce();
1082	>	checkCompletedNormally(f);
1083	>	assertEquals(34, g.number);
1084	>	checkCompletedNormally(g);
1085	>	}};
1086	>	testInvokeOnPool(asyncSingletonPool(), a);
1087	>	}
1088	>
1089	>	/**
1090	>	* pollNextLocalTask returns least recent unexecuted task without
1091	>	* executing it, in async mode
1092	>	*/
1093	>	public void testPollNextLocalTaskAsync() {
1094	>	RecursiveAction a = new CheckedRecursiveAction() {
1095	>	protected void realCompute() {
1096	>	AsyncFib g = new AsyncFib(9);
1097	>	assertSame(g, g.fork());
1098	>	AsyncFib f = new AsyncFib(8);
1099	>	assertSame(f, f.fork());
1100	>	assertSame(g, pollNextLocalTask());
1101	>	helpQuiesce();
1102	>	assertEquals(21, f.number);
1103	>	checkCompletedNormally(f);
1104	>	checkNotDone(g);
1105	>	}};
1106	>	testInvokeOnPool(asyncSingletonPool(), a);
1107	>	}
1108	>
1109	>	/**
1110	>	* pollTask returns an unexecuted task without executing it, in
1111	>	* async mode
1112	>	*/
1113	>	public void testPollTaskAsync() {
1114	>	RecursiveAction a = new CheckedRecursiveAction() {
1115	>	protected void realCompute() {
1116	>	AsyncFib g = new AsyncFib(9);
1117	>	assertSame(g, g.fork());
1118	>	AsyncFib f = new AsyncFib(8);
1119	>	assertSame(f, f.fork());
1120	>	assertSame(g, pollTask());
1121	>	helpQuiesce();
1122	>	assertEquals(21, f.number);
1123	>	checkCompletedNormally(f);
1124	>	checkNotDone(g);
1125	>	}};
1126	>	testInvokeOnPool(asyncSingletonPool(), a);
1127	>	}
1128	>
1129	>	// versions for singleton pools
1130	>
1131	>	/**
1132	>	* invoke returns when task completes normally.
1133	>	* isCompletedAbnormally and isCancelled return false for normally
1134	>	* completed tasks; getRawResult returns null.
1135	>	*/
1136	>	public void testInvokeSingleton() {
1137	>	RecursiveAction a = new CheckedRecursiveAction() {
1138	>	protected void realCompute() {
1139	>	AsyncFib f = new AsyncFib(8);
1140	>	assertNull(f.invoke());
1141	>	assertEquals(21, f.number);
1142	>	checkCompletedNormally(f);
1143	>	}};
1144	>	testInvokeOnPool(singletonPool(), a);
1145	>	}
1146	>
1147	>	/**
1148	>	* quietlyInvoke task returns when task completes normally.
1149	>	* isCompletedAbnormally and isCancelled return false for normally
1150	>	* completed tasks
1151	>	*/
1152	>	public void testQuietlyInvokeSingleton() {
1153	>	RecursiveAction a = new CheckedRecursiveAction() {
1154	>	protected void realCompute() {
1155	>	AsyncFib f = new AsyncFib(8);
1156	>	f.quietlyInvoke();
1157	>	assertEquals(21, f.number);
1158	>	checkCompletedNormally(f);
1159	>	}};
1160	>	testInvokeOnPool(singletonPool(), a);
1161	>	}
1162	>
1163	>	/**
1164	>	* join of a forked task returns when task completes
1165	>	*/
1166	>	public void testForkJoinSingleton() {
1167	>	RecursiveAction a = new CheckedRecursiveAction() {
1168	>	protected void realCompute() {
1169	>	AsyncFib f = new AsyncFib(8);
1170	>	assertSame(f, f.fork());
1171	>	assertNull(f.join());
1172	>	assertEquals(21, f.number);
1173	>	checkCompletedNormally(f);
1174	>	}};
1175	>	testInvokeOnPool(singletonPool(), a);
1176	>	}
1177	>
1178	>	/**
1179	>	* get of a forked task returns when task completes
1180	>	*/
1181	>	public void testForkGetSingleton() {
1182	>	RecursiveAction a = new CheckedRecursiveAction() {
1183	>	protected void realCompute() throws Exception {
1184	>	AsyncFib f = new AsyncFib(8);
1185	>	assertSame(f, f.fork());
1186	>	assertNull(f.get());
1187	>	assertEquals(21, f.number);
1188	>	checkCompletedNormally(f);
1189	>	}};
1190	>	testInvokeOnPool(singletonPool(), a);
1191	>	}
1192	>
1193	>	/**
1194	>	* timed get of a forked task returns when task completes
1195	>	*/
1196	>	public void testForkTimedGetSingleton() {
1197	>	RecursiveAction a = new CheckedRecursiveAction() {
1198	>	protected void realCompute() throws Exception {
1199	>	AsyncFib f = new AsyncFib(8);
1200	>	assertSame(f, f.fork());
1201	>	assertNull(f.get(LONG_DELAY_MS, MILLISECONDS));
1202	>	assertEquals(21, f.number);
1203	>	checkCompletedNormally(f);
1204	>	}};
1205	>	testInvokeOnPool(singletonPool(), a);
1206	>	}
1207	>
1208	>	/**
1209	>	* timed get with null time unit throws NPE
1210	>	*/
1211	>	public void testForkTimedGetNPESingleton() {
1212	>	RecursiveAction a = new CheckedRecursiveAction() {
1213	>	protected void realCompute() throws Exception {
1214	>	AsyncFib f = new AsyncFib(8);
1215	>	assertSame(f, f.fork());
1216	>	try {
1217	>	f.get(5L, null);
1218	>	shouldThrow();
1219	>	} catch (NullPointerException success) {}
1220	>	}};
1221	>	testInvokeOnPool(singletonPool(), a);
1222	>	}
1223	>
1224	>	/**
1225	>	* quietlyJoin of a forked task returns when task completes
1226	>	*/
1227	>	public void testForkQuietlyJoinSingleton() {
1228	>	RecursiveAction a = new CheckedRecursiveAction() {
1229	>	protected void realCompute() {
1230	>	AsyncFib f = new AsyncFib(8);
1231	>	assertSame(f, f.fork());
1232	>	f.quietlyJoin();
1233	>	assertEquals(21, f.number);
1234	>	checkCompletedNormally(f);
1235	>	}};
1236	>	testInvokeOnPool(singletonPool(), a);
1237	>	}
1238	>
1239	>	/**
1240	>	* helpQuiesce returns when tasks are complete.
1241	>	* getQueuedTaskCount returns 0 when quiescent
1242	>	*/
1243	>	public void testForkHelpQuiesceSingleton() {
1244	>	RecursiveAction a = new CheckedRecursiveAction() {
1245	>	protected void realCompute() {
1246	>	AsyncFib f = new AsyncFib(8);
1247	>	assertSame(f, f.fork());
1248	>	helpQuiesce();
1249	>	assertEquals(0, getQueuedTaskCount());
1250	>	assertEquals(21, f.number);
1251	>	checkCompletedNormally(f);
1252	>	}};
1253	>	testInvokeOnPool(singletonPool(), a);
1254	>	}
1255	>
1256	>	/**
1257	>	* invoke task throws exception when task completes abnormally
1258	>	*/
1259	>	public void testAbnormalInvokeSingleton() {
1260	>	RecursiveAction a = new CheckedRecursiveAction() {
1261	>	protected void realCompute() {
1262	>	FailingAsyncFib f = new FailingAsyncFib(8);
1263	>	try {
1264	>	f.invoke();
1265	>	shouldThrow();
1266	>	} catch (FJException success) {
1267	>	checkCompletedAbnormally(f, success);
1268	>	}
1269	>	}};
1270	>	testInvokeOnPool(singletonPool(), a);
1271	>	}
1272	>
1273	>	/**
1274	>	* quietlyInvoke task returns when task completes abnormally
1275	>	*/
1276	>	public void testAbnormalQuietlyInvokeSingleton() {
1277	>	RecursiveAction a = new CheckedRecursiveAction() {
1278	>	protected void realCompute() {
1279	>	FailingAsyncFib f = new FailingAsyncFib(8);
1280	>	f.quietlyInvoke();
1281	>	assertTrue(f.getException() instanceof FJException);
1282	>	checkCompletedAbnormally(f, f.getException());
1283	>	}};
1284	>	testInvokeOnPool(singletonPool(), a);
1285	>	}
1286	>
1287	>	/**
1288	>	* join of a forked task throws exception when task completes abnormally
1289	>	*/
1290	>	public void testAbnormalForkJoinSingleton() {
1291	>	RecursiveAction a = new CheckedRecursiveAction() {
1292	>	protected void realCompute() {
1293	>	FailingAsyncFib f = new FailingAsyncFib(8);
1294	>	assertSame(f, f.fork());
1295	>	try {
1296		f.join();
1297	<	helpQuiesce();
1298	<	threadAssertTrue(f.isDone());
1297	>	shouldThrow();
1298	>	} catch (FJException success) {
1299	>	checkCompletedAbnormally(f, success);
1300		}
1301	<	};
1302	<	asyncSingletonPool.invoke(a);
1301	>	}};
1302	>	testInvokeOnPool(singletonPool(), a);
1303		}
1304
1305		/**
1306	<	* pollNextLocalTask returns least recent unexecuted task
1051	<	* without executing it, in async mode
1306	>	* get of a forked task throws exception when task completes abnormally
1307		*/
1308	<	public void testPollNextLocalTaskAsync() {
1309	<	RecursiveAction a = new RecursiveAction() {
1310	<	public void compute() {
1311	<	AsyncFib g = new AsyncFib(9);
1312	<	g.fork();
1313	<	AsyncFib f = new AsyncFib(8);
1314	<	f.fork();
1315	<	threadAssertTrue(pollNextLocalTask() == g);
1316	<	helpQuiesce();
1317	<	threadAssertTrue(f.isDone());
1318	<	threadAssertFalse(g.isDone());
1308	>	public void testAbnormalForkGetSingleton() {
1309	>	RecursiveAction a = new CheckedRecursiveAction() {
1310	>	protected void realCompute() throws Exception {
1311	>	FailingAsyncFib f = new FailingAsyncFib(8);
1312	>	assertSame(f, f.fork());
1313	>	try {
1314	>	f.get();
1315	>	shouldThrow();
1316	>	} catch (ExecutionException success) {
1317	>	Throwable cause = success.getCause();
1318	>	assertTrue(cause instanceof FJException);
1319	>	checkCompletedAbnormally(f, cause);
1320		}
1321	<	};
1322	<	asyncSingletonPool.invoke(a);
1321	>	}};
1322	>	testInvokeOnPool(singletonPool(), a);
1323		}
1324
1325		/**
1326	<	* pollTask returns an unexecuted task
1071	<	* without executing it, in async mode
1326	>	* timed get of a forked task throws exception when task completes abnormally
1327		*/
1328	<	public void testPollTaskAsync() {
1329	<	RecursiveAction a = new RecursiveAction() {
1330	<	public void compute() {
1331	<	AsyncFib g = new AsyncFib(9);
1332	<	g.fork();
1333	<	AsyncFib f = new AsyncFib(8);
1334	<	f.fork();
1335	<	threadAssertTrue(pollTask() == g);
1336	<	helpQuiesce();
1337	<	threadAssertTrue(f.isDone());
1338	<	threadAssertFalse(g.isDone());
1328	>	public void testAbnormalForkTimedGetSingleton() {
1329	>	RecursiveAction a = new CheckedRecursiveAction() {
1330	>	protected void realCompute() throws Exception {
1331	>	FailingAsyncFib f = new FailingAsyncFib(8);
1332	>	assertSame(f, f.fork());
1333	>	try {
1334	>	f.get(LONG_DELAY_MS, MILLISECONDS);
1335	>	shouldThrow();
1336	>	} catch (ExecutionException success) {
1337	>	Throwable cause = success.getCause();
1338	>	assertTrue(cause instanceof FJException);
1339	>	checkCompletedAbnormally(f, cause);
1340		}
1341	<	};
1342	<	asyncSingletonPool.invoke(a);
1341	>	}};
1342	>	testInvokeOnPool(singletonPool(), a);
1343	>	}
1344	>
1345	>	/**
1346	>	* quietlyJoin of a forked task returns when task completes abnormally
1347	>	*/
1348	>	public void testAbnormalForkQuietlyJoinSingleton() {
1349	>	RecursiveAction a = new CheckedRecursiveAction() {
1350	>	protected void realCompute() {
1351	>	FailingAsyncFib f = new FailingAsyncFib(8);
1352	>	assertSame(f, f.fork());
1353	>	f.quietlyJoin();
1354	>	assertTrue(f.getException() instanceof FJException);
1355	>	checkCompletedAbnormally(f, f.getException());
1356	>	}};
1357	>	testInvokeOnPool(singletonPool(), a);
1358		}
1359	+
1360	+	/**
1361	+	* invoke task throws exception when task cancelled
1362	+	*/
1363	+	public void testCancelledInvokeSingleton() {
1364	+	RecursiveAction a = new CheckedRecursiveAction() {
1365	+	protected void realCompute() {
1366	+	AsyncFib f = new AsyncFib(8);
1367	+	assertTrue(f.cancel(true));
1368	+	try {
1369	+	f.invoke();
1370	+	shouldThrow();
1371	+	} catch (CancellationException success) {
1372	+	checkCancelled(f);
1373	+	}
1374	+	}};
1375	+	testInvokeOnPool(singletonPool(), a);
1376	+	}
1377	+
1378	+	/**
1379	+	* join of a forked task throws exception when task cancelled
1380	+	*/
1381	+	public void testCancelledForkJoinSingleton() {
1382	+	RecursiveAction a = new CheckedRecursiveAction() {
1383	+	protected void realCompute() {
1384	+	AsyncFib f = new AsyncFib(8);
1385	+	assertTrue(f.cancel(true));
1386	+	assertSame(f, f.fork());
1387	+	try {
1388	+	f.join();
1389	+	shouldThrow();
1390	+	} catch (CancellationException success) {
1391	+	checkCancelled(f);
1392	+	}
1393	+	}};
1394	+	testInvokeOnPool(singletonPool(), a);
1395	+	}
1396	+
1397	+	/**
1398	+	* get of a forked task throws exception when task cancelled
1399	+	*/
1400	+	public void testCancelledForkGetSingleton() {
1401	+	RecursiveAction a = new CheckedRecursiveAction() {
1402	+	protected void realCompute() throws Exception {
1403	+	AsyncFib f = new AsyncFib(8);
1404	+	assertTrue(f.cancel(true));
1405	+	assertSame(f, f.fork());
1406	+	try {
1407	+	f.get();
1408	+	shouldThrow();
1409	+	} catch (CancellationException success) {
1410	+	checkCancelled(f);
1411	+	}
1412	+	}};
1413	+	testInvokeOnPool(singletonPool(), a);
1414	+	}
1415	+
1416	+	/**
1417	+	* timed get of a forked task throws exception when task cancelled
1418	+	*/
1419	+	public void testCancelledForkTimedGetSingleton() throws Exception {
1420	+	RecursiveAction a = new CheckedRecursiveAction() {
1421	+	protected void realCompute() throws Exception {
1422	+	AsyncFib f = new AsyncFib(8);
1423	+	assertTrue(f.cancel(true));
1424	+	assertSame(f, f.fork());
1425	+	try {
1426	+	f.get(LONG_DELAY_MS, MILLISECONDS);
1427	+	shouldThrow();
1428	+	} catch (CancellationException success) {
1429	+	checkCancelled(f);
1430	+	}
1431	+	}};
1432	+	testInvokeOnPool(singletonPool(), a);
1433	+	}
1434	+
1435	+	/**
1436	+	* quietlyJoin of a forked task returns when task cancelled
1437	+	*/
1438	+	public void testCancelledForkQuietlyJoinSingleton() {
1439	+	RecursiveAction a = new CheckedRecursiveAction() {
1440	+	protected void realCompute() {
1441	+	AsyncFib f = new AsyncFib(8);
1442	+	assertTrue(f.cancel(true));
1443	+	assertSame(f, f.fork());
1444	+	f.quietlyJoin();
1445	+	checkCancelled(f);
1446	+	}};
1447	+	testInvokeOnPool(singletonPool(), a);
1448	+	}
1449	+
1450	+	/**
1451	+	* invoke task throws exception after invoking completeExceptionally
1452	+	*/
1453	+	public void testCompleteExceptionallySingleton() {
1454	+	RecursiveAction a = new CheckedRecursiveAction() {
1455	+	protected void realCompute() {
1456	+	AsyncFib f = new AsyncFib(8);
1457	+	f.completeExceptionally(new FJException());
1458	+	try {
1459	+	f.invoke();
1460	+	shouldThrow();
1461	+	} catch (FJException success) {
1462	+	checkCompletedAbnormally(f, success);
1463	+	}
1464	+	}};
1465	+	testInvokeOnPool(singletonPool(), a);
1466	+	}
1467	+
1468	+	/**
1469	+	* invokeAll(t1, t2) invokes all task arguments
1470	+	*/
1471	+	public void testInvokeAll2Singleton() {
1472	+	RecursiveAction a = new CheckedRecursiveAction() {
1473	+	protected void realCompute() {
1474	+	AsyncFib f = new AsyncFib(8);
1475	+	AsyncFib g = new AsyncFib(9);
1476	+	invokeAll(f, g);
1477	+	assertEquals(21, f.number);
1478	+	assertEquals(34, g.number);
1479	+	checkCompletedNormally(f);
1480	+	checkCompletedNormally(g);
1481	+	}};
1482	+	testInvokeOnPool(singletonPool(), a);
1483	+	}
1484	+
1485	+	/**
1486	+	* invokeAll(tasks) with 1 argument invokes task
1487	+	*/
1488	+	public void testInvokeAll1Singleton() {
1489	+	RecursiveAction a = new CheckedRecursiveAction() {
1490	+	protected void realCompute() {
1491	+	AsyncFib f = new AsyncFib(8);
1492	+	invokeAll(f);
1493	+	checkCompletedNormally(f);
1494	+	assertEquals(21, f.number);
1495	+	}};
1496	+	testInvokeOnPool(singletonPool(), a);
1497	+	}
1498	+
1499	+	/**
1500	+	* invokeAll(tasks) with > 2 argument invokes tasks
1501	+	*/
1502	+	public void testInvokeAll3Singleton() {
1503	+	RecursiveAction a = new CheckedRecursiveAction() {
1504	+	protected void realCompute() {
1505	+	AsyncFib f = new AsyncFib(8);
1506	+	AsyncFib g = new AsyncFib(9);
1507	+	AsyncFib h = new AsyncFib(7);
1508	+	invokeAll(f, g, h);
1509	+	assertEquals(21, f.number);
1510	+	assertEquals(34, g.number);
1511	+	assertEquals(13, h.number);
1512	+	checkCompletedNormally(f);
1513	+	checkCompletedNormally(g);
1514	+	checkCompletedNormally(h);
1515	+	}};
1516	+	testInvokeOnPool(singletonPool(), a);
1517	+	}
1518	+
1519	+	/**
1520	+	* invokeAll(collection) invokes all tasks in the collection
1521	+	*/
1522	+	public void testInvokeAllCollectionSingleton() {
1523	+	RecursiveAction a = new CheckedRecursiveAction() {
1524	+	protected void realCompute() {
1525	+	AsyncFib f = new AsyncFib(8);
1526	+	AsyncFib g = new AsyncFib(9);
1527	+	AsyncFib h = new AsyncFib(7);
1528	+	HashSet set = new HashSet();
1529	+	set.add(f);
1530	+	set.add(g);
1531	+	set.add(h);
1532	+	invokeAll(set);
1533	+	assertEquals(21, f.number);
1534	+	assertEquals(34, g.number);
1535	+	assertEquals(13, h.number);
1536	+	checkCompletedNormally(f);
1537	+	checkCompletedNormally(g);
1538	+	checkCompletedNormally(h);
1539	+	}};
1540	+	testInvokeOnPool(singletonPool(), a);
1541	+	}
1542	+
1543	+	/**
1544	+	* invokeAll(tasks) with any null task throws NPE
1545	+	*/
1546	+	public void testInvokeAllNPESingleton() {
1547	+	RecursiveAction a = new CheckedRecursiveAction() {
1548	+	protected void realCompute() {
1549	+	AsyncFib f = new AsyncFib(8);
1550	+	AsyncFib g = new AsyncFib(9);
1551	+	AsyncFib h = null;
1552	+	try {
1553	+	invokeAll(f, g, h);
1554	+	shouldThrow();
1555	+	} catch (NullPointerException success) {}
1556	+	}};
1557	+	testInvokeOnPool(singletonPool(), a);
1558	+	}
1559	+
1560	+	/**
1561	+	* invokeAll(t1, t2) throw exception if any task does
1562	+	*/
1563	+	public void testAbnormalInvokeAll2Singleton() {
1564	+	RecursiveAction a = new CheckedRecursiveAction() {
1565	+	protected void realCompute() {
1566	+	AsyncFib f = new AsyncFib(8);
1567	+	FailingAsyncFib g = new FailingAsyncFib(9);
1568	+	ForkJoinTask[] tasks = { f, g };
1569	+	shuffle(tasks);
1570	+	try {
1571	+	invokeAll(tasks);
1572	+	shouldThrow();
1573	+	} catch (FJException success) {
1574	+	checkCompletedAbnormally(g, success);
1575	+	}
1576	+	}};
1577	+	testInvokeOnPool(singletonPool(), a);
1578	+	}
1579	+
1580	+	/**
1581	+	* invokeAll(tasks) with 1 argument throws exception if task does
1582	+	*/
1583	+	public void testAbnormalInvokeAll1Singleton() {
1584	+	RecursiveAction a = new CheckedRecursiveAction() {
1585	+	protected void realCompute() {
1586	+	FailingAsyncFib g = new FailingAsyncFib(9);
1587	+	try {
1588	+	invokeAll(g);
1589	+	shouldThrow();
1590	+	} catch (FJException success) {
1591	+	checkCompletedAbnormally(g, success);
1592	+	}
1593	+	}};
1594	+	testInvokeOnPool(singletonPool(), a);
1595	+	}
1596	+
1597	+	/**
1598	+	* invokeAll(tasks) with > 2 argument throws exception if any task does
1599	+	*/
1600	+	public void testAbnormalInvokeAll3Singleton() {
1601	+	RecursiveAction a = new CheckedRecursiveAction() {
1602	+	protected void realCompute() {
1603	+	AsyncFib f = new AsyncFib(8);
1604	+	FailingAsyncFib g = new FailingAsyncFib(9);
1605	+	AsyncFib h = new AsyncFib(7);
1606	+	ForkJoinTask[] tasks = { f, g, h };
1607	+	shuffle(tasks);
1608	+	try {
1609	+	invokeAll(tasks);
1610	+	shouldThrow();
1611	+	} catch (FJException success) {
1612	+	checkCompletedAbnormally(g, success);
1613	+	}
1614	+	}};
1615	+	testInvokeOnPool(singletonPool(), a);
1616	+	}
1617	+
1618	+	/**
1619	+	* invokeAll(collection) throws exception if any task does
1620	+	*/
1621	+	public void testAbnormalInvokeAllCollectionSingleton() {
1622	+	RecursiveAction a = new CheckedRecursiveAction() {
1623	+	protected void realCompute() {
1624	+	FailingAsyncFib f = new FailingAsyncFib(8);
1625	+	AsyncFib g = new AsyncFib(9);
1626	+	AsyncFib h = new AsyncFib(7);
1627	+	ForkJoinTask[] tasks = { f, g, h };
1628	+	shuffle(tasks);
1629	+	try {
1630	+	invokeAll(Arrays.asList(tasks));
1631	+	shouldThrow();
1632	+	} catch (FJException success) {
1633	+	checkCompletedAbnormally(f, success);
1634	+	}
1635	+	}};
1636	+	testInvokeOnPool(singletonPool(), a);
1637	+	}
1638	+
1639	+	/**
1640	+	* ForkJoinTask.quietlyComplete returns when task completes
1641	+	* normally without setting a value. The most recent value
1642	+	* established by setRawResult(V) (or null by default) is returned
1643	+	* from invoke.
1644	+	*/
1645	+	public void testQuietlyComplete() {
1646	+	RecursiveAction a = new CheckedRecursiveAction() {
1647	+	protected void realCompute() {
1648	+	AsyncFib f = new AsyncFib(8);
1649	+	f.quietlyComplete();
1650	+	assertEquals(8, f.number);
1651	+	checkCompletedNormally(f);
1652	+	}};
1653	+	testInvokeOnPool(mainPool(), a);
1654	+	}
1655	+
1656		}

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