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Comparing jsr166/src/test/tck/ForkJoinTaskTest.java (file contents):
Revision 1.1 by dl, Fri Jul 31 23:02:49 2009 UTC vs.
Revision 1.48 by dl, Sun Oct 11 19:53:59 2015 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);
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	<	*
205	>	*
206		* To test extension methods and overrides, most tests use
207		* BinaryAsyncAction extension class that processes joins
208		* differently than supplied Recursive forms.
209	<	*/
27	<
28	<	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	<	}
209	>	*/
210
211	<	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,
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 92 | Line 276 | public class ForkJoinTaskTest extends JS
276		break;
277		try {
278		p.onComplete(a, s);
279	<	} catch(Throwable rex) {
279	>	} catch (Throwable rex) {
280		p.completeExceptionally(rex);
281		return;
282		}
#	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 129 | Line 312 | public class ForkJoinTaskTest extends JS
312		return controlState;
313		}
314
315	<	protected final boolean compareAndSetControlState(int expect,
315	>	protected final boolean compareAndSetControlState(int expect,
316		int update) {
317		return controlStateUpdater.compareAndSet(this, expect, update);
318		}
#	Line 148 | Line 331 | public class ForkJoinTaskTest extends JS
331
332		}
333
334	<	static final class AsyncFib  extends BinaryAsyncAction {
334	>	static final class AsyncFib extends BinaryAsyncAction {
335		int number;
336	<	public AsyncFib(int n) {
336	>	public AsyncFib(int n) {
337		this.number = n;
338		}
339	<
339	>
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
359	<
180	<	static final class FailingAsyncFib  extends BinaryAsyncAction {
359	>	static final class FailingAsyncFib extends BinaryAsyncAction {
360		int number;
361	<	public FailingAsyncFib(int n) {
361	>	public FailingAsyncFib(int n) {
362		this.number = n;
363		}
364	<
364	>
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 205 | Line 381 | public class ForkJoinTaskTest extends JS
381		}
382		}
383
384	<	/**
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	<	/**
400	>	/**
401		* quietlyInvoke task returns when task completes normally.
402		* isCompletedAbnormally and isCancelled return false for normally
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	<	/**
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	<	/**
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();
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	<	/**
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(5L, TimeUnit.SECONDS);
456	<	threadAssertTrue(f.number == 21);
457	<	threadAssertTrue(f.isDone());
458	<	} catch(Exception ex) {
299	<	unexpectedException();
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	<	/**
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	<	} catch(NullPointerException success) {
472	<	} catch(Exception ex) {
473	<	unexpectedException();
474	<	}
320	<	}
321	<	};
322	<	mainPool.invoke(a);
323	<	}
324	<
325	<	/**
326	<	* helpJoin of a forked task returns when task completes
327	<	*/
328	<	public void testForkHelpJoin() {
329	<	RecursiveAction a = new RecursiveAction() {
330	<	public void compute() {
331	<	AsyncFib f = new AsyncFib(8);
332	<	f.fork();
333	<	f.helpJoin();
334	<	threadAssertTrue(f.number == 21);
335	<	threadAssertTrue(f.isDone());
336	<	}
337	<	};
338	<	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	<	/**
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	<	};
354	<	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
492	<
358	<	/**
359	<	* quietlyHelpJoin of a forked task returns when task completes
360	<	*/
361	<	public void testForkQuietlyHelpJoin() {
362	<	RecursiveAction a = new RecursiveAction() {
363	<	public void compute() {
364	<	AsyncFib f = new AsyncFib(8);
365	<	f.fork();
366	<	f.quietlyHelpJoin();
367	<	threadAssertTrue(f.number == 21);
368	<	threadAssertTrue(f.isDone());
369	<	}
370	<	};
371	<	mainPool.invoke(a);
372	<	}
373	<
374	<
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	<	};
390	<	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
509	<
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	<	* quietelyInvoke task returns when task completes abnormally
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	<	/**
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	<	/**
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(Exception success) {
570	<	}
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	<	/**
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(5L, TimeUnit.SECONDS);
588	<	shouldThrow();
589	<	} catch(Exception success) {
590	<	}
591	<	}
592	<	};
476	<	mainPool.invoke(a);
477	<	}
478	<
479	<	/**
480	<	* join of a forked task throws exception when task completes abnormally
481	<	*/
482	<	public void testAbnormalForkHelpJoin() {
483	<	RecursiveAction a = new RecursiveAction() {
484	<	public void compute() {
485	<	try {
486	<	FailingAsyncFib f = new FailingAsyncFib(8);
487	<	f.fork();
488	<	f.helpJoin();
489	<	shouldThrow();
490	<	} catch(FJException success) {
491	<	}
492	<	}
493	<	};
494	<	mainPool.invoke(a);
495	<	}
496	<
497	<	/**
498	<	* quietlyHelpJoin of a forked task returns when task completes abnormally.
499	<	* getException of failed task returns its exception.
500	<	* isCompletedAbnormally of a failed task returns true.
501	<	* isCancelled of a failed uncancelled task returns false
502	<	*/
503	<	public void testAbnormalForkQuietlyHelpJoin() {
504	<	RecursiveAction a = new RecursiveAction() {
505	<	public void compute() {
506	<	FailingAsyncFib f = new FailingAsyncFib(8);
507	<	f.fork();
508	<	f.quietlyHelpJoin();
509	<	threadAssertTrue(f.isDone());
510	<	threadAssertTrue(f.isCompletedAbnormally());
511	<	threadAssertFalse(f.isCancelled());
512	<	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	<	/**
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	<	}
531	<	};
532	<	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	<	/**
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	<	/**
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	<	/**
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(Exception success) {
663	<	}
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	<	/**
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(5L, TimeUnit.SECONDS);
680	<	shouldThrow();
681	<	} catch(Exception success) {
682	<	}
605	<	}
606	<	};
607	<	mainPool.invoke(a);
608	<	}
609	<
610	<	/**
611	<	* join of a forked task throws exception when task cancelled
612	<	*/
613	<	public void testCancelledForkHelpJoin() {
614	<	RecursiveAction a = new RecursiveAction() {
615	<	public void compute() {
616	<	try {
617	<	AsyncFib f = new AsyncFib(8);
618	<	f.cancel(true);
619	<	f.fork();
620	<	f.helpJoin();
621	<	shouldThrow();
622	<	} catch(CancellationException success) {
623	<	}
624	<	}
625	<	};
626	<	mainPool.invoke(a);
627	<	}
628	<
629	<	/**
630	<	* quietlyHelpJoin of a forked task returns when task cancelled.
631	<	* getException of cancelled task returns its exception.
632	<	* isCompletedAbnormally of a cancelled task returns true.
633	<	* isCancelled of a cancelled task returns true
634	<	*/
635	<	public void testCancelledForkQuietlyHelpJoin() {
636	<	RecursiveAction a = new RecursiveAction() {
637	<	public void compute() {
638	<	AsyncFib f = new AsyncFib(8);
639	<	f.cancel(true);
640	<	f.fork();
641	<	f.quietlyHelpJoin();
642	<	threadAssertTrue(f.isDone());
643	<	threadAssertTrue(f.isCompletedAbnormally());
644	<	threadAssertTrue(f.isCancelled());
645	<	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	<	/**
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);
664	<	}
665	<	};
666	<	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	<	};
690	<	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	<	};
702	<	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	<	};
714	<	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	<	/**
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	<	mainPool.invoke(a);
774	>	}};
775	>	testInvokeOnPool(mainPool(), a);
776		}
777
778	<	/**
778	>	/**
779		* invokeAll(t1, t2) invokes all task arguments
780		*/
781		public void testInvokeAll2() {
782	<	RecursiveAction a = new RecursiveAction() {
783	<	public void compute() {
784	<	AsyncFib f = new AsyncFib(8);
785	<	AsyncFib g = new AsyncFib(9);
786	<	invokeAll(f, g);
787	<	threadAssertTrue(f.isDone());
788	<	threadAssertTrue(f.number == 21);
789	<	threadAssertTrue(g.isDone());
790	<	threadAssertTrue(g.number == 34);
791	<	}
792	<	};
762	<	mainPool.invoke(a);
782	>	RecursiveAction a = new CheckedRecursiveAction() {
783	>	protected void realCompute() {
784	>	AsyncFib f = new AsyncFib(8);
785	>	AsyncFib g = new AsyncFib(9);
786	>	invokeAll(f, g);
787	>	assertEquals(21, f.number);
788	>	assertEquals(34, g.number);
789	>	checkCompletedNormally(f);
790	>	checkCompletedNormally(g);
791	>	}};
792	>	testInvokeOnPool(mainPool(), a);
793		}
794
795	<	/**
795	>	/**
796		* invokeAll(tasks) with 1 argument invokes task
797		*/
798		public void testInvokeAll1() {
799	<	RecursiveAction a = new RecursiveAction() {
800	<	public void compute() {
801	<	AsyncFib f = new AsyncFib(8);
802	<	invokeAll(f);
803	<	threadAssertTrue(f.isDone());
804	<	threadAssertTrue(f.number == 21);
805	<	}
806	<	};
777	<	mainPool.invoke(a);
799	>	RecursiveAction a = new CheckedRecursiveAction() {
800	>	protected void realCompute() {
801	>	AsyncFib f = new AsyncFib(8);
802	>	invokeAll(f);
803	>	checkCompletedNormally(f);
804	>	assertEquals(21, f.number);
805	>	}};
806	>	testInvokeOnPool(mainPool(), a);
807		}
808
809	<	/**
809	>	/**
810		* invokeAll(tasks) with > 2 argument invokes tasks
811		*/
812		public void testInvokeAll3() {
813	<	RecursiveAction a = new RecursiveAction() {
814	<	public void compute() {
815	<	AsyncFib f = new AsyncFib(8);
816	<	AsyncFib g = new AsyncFib(9);
817	<	AsyncFib h = new AsyncFib(7);
818	<	invokeAll(f, g, h);
819	<	threadAssertTrue(f.isDone());
820	<	threadAssertTrue(f.number == 21);
821	<	threadAssertTrue(g.isDone());
822	<	threadAssertTrue(g.number == 34);
823	<	threadAssertTrue(h.isDone());
824	<	threadAssertTrue(h.number == 13);
825	<	}
826	<	};
798	<	mainPool.invoke(a);
813	>	RecursiveAction a = new CheckedRecursiveAction() {
814	>	protected void realCompute() {
815	>	AsyncFib f = new AsyncFib(8);
816	>	AsyncFib g = new AsyncFib(9);
817	>	AsyncFib h = new AsyncFib(7);
818	>	invokeAll(f, g, h);
819	>	assertEquals(21, f.number);
820	>	assertEquals(34, g.number);
821	>	assertEquals(13, h.number);
822	>	checkCompletedNormally(f);
823	>	checkCompletedNormally(g);
824	>	checkCompletedNormally(h);
825	>	}};
826	>	testInvokeOnPool(mainPool(), a);
827		}
828
829	<	/**
829	>	/**
830		* invokeAll(collection) invokes all tasks in the collection
831		*/
832		public void testInvokeAllCollection() {
833	<	RecursiveAction a = new RecursiveAction() {
834	<	public void compute() {
835	<	AsyncFib f = new AsyncFib(8);
836	<	AsyncFib g = new AsyncFib(9);
837	<	AsyncFib h = new AsyncFib(7);
838	<	HashSet set = new HashSet();
839	<	set.add(f);
840	<	set.add(g);
841	<	set.add(h);
842	<	invokeAll(set);
843	<	threadAssertTrue(f.isDone());
844	<	threadAssertTrue(f.number == 21);
845	<	threadAssertTrue(g.isDone());
846	<	threadAssertTrue(g.number == 34);
847	<	threadAssertTrue(h.isDone());
848	<	threadAssertTrue(h.number == 13);
849	<	}
850	<	};
823	<	mainPool.invoke(a);
833	>	RecursiveAction a = new CheckedRecursiveAction() {
834	>	protected void realCompute() {
835	>	AsyncFib f = new AsyncFib(8);
836	>	AsyncFib g = new AsyncFib(9);
837	>	AsyncFib h = new AsyncFib(7);
838	>	HashSet set = new HashSet();
839	>	set.add(f);
840	>	set.add(g);
841	>	set.add(h);
842	>	invokeAll(set);
843	>	assertEquals(21, f.number);
844	>	assertEquals(34, g.number);
845	>	assertEquals(13, h.number);
846	>	checkCompletedNormally(f);
847	>	checkCompletedNormally(g);
848	>	checkCompletedNormally(h);
849	>	}};
850	>	testInvokeOnPool(mainPool(), a);
851		}
852
853	<
827	<	/**
853	>	/**
854		* invokeAll(tasks) with any null task throws NPE
855		*/
856		public void testInvokeAllNPE() {
857	<	RecursiveAction a = new RecursiveAction() {
858	<	public void compute() {
859	<	try {
860	<	AsyncFib f = new AsyncFib(8);
861	<	AsyncFib g = new AsyncFib(9);
862	<	AsyncFib h = null;
863	<	invokeAll(f, g, h);
864	<	shouldThrow();
865	<	} catch (NullPointerException success) {
866	<	}
867	<	}
842	<	};
843	<	mainPool.invoke(a);
857	>	RecursiveAction a = new CheckedRecursiveAction() {
858	>	protected void realCompute() {
859	>	AsyncFib f = new AsyncFib(8);
860	>	AsyncFib g = new AsyncFib(9);
861	>	AsyncFib h = null;
862	>	try {
863	>	invokeAll(f, g, h);
864	>	shouldThrow();
865	>	} catch (NullPointerException success) {}
866	>	}};
867	>	testInvokeOnPool(mainPool(), a);
868		}
869
870	<	/**
870	>	/**
871		* invokeAll(t1, t2) throw exception if any task does
872		*/
873		public void testAbnormalInvokeAll2() {
874	<	RecursiveAction a = new RecursiveAction() {
875	<	public void compute() {
876	<	try {
877	<	AsyncFib f = new AsyncFib(8);
878	<	FailingAsyncFib g = new FailingAsyncFib(9);
879	<	invokeAll(f, g);
880	<	shouldThrow();
881	<	} catch(FJException success) {
882	<	}
874	>	RecursiveAction a = new CheckedRecursiveAction() {
875	>	protected void realCompute() {
876	>	AsyncFib f = new AsyncFib(8);
877	>	FailingAsyncFib g = new FailingAsyncFib(9);
878	>	ForkJoinTask[] tasks = { f, g };
879	>	Collections.shuffle(Arrays.asList(tasks));
880	>	try {
881	>	invokeAll(tasks);
882	>	shouldThrow();
883	>	} catch (FJException success) {
884	>	checkCompletedAbnormally(g, success);
885		}
886	<	};
887	<	mainPool.invoke(a);
886	>	}};
887	>	testInvokeOnPool(mainPool(), a);
888		}
889
890	<	/**
890	>	/**
891		* invokeAll(tasks) with 1 argument throws exception if task does
892		*/
893		public void testAbnormalInvokeAll1() {
894	<	RecursiveAction a = new RecursiveAction() {
895	<	public void compute() {
896	<	try {
897	<	FailingAsyncFib g = new FailingAsyncFib(9);
898	<	invokeAll(g);
899	<	shouldThrow();
900	<	} catch(FJException success) {
901	<	}
894	>	RecursiveAction a = new CheckedRecursiveAction() {
895	>	protected void realCompute() {
896	>	FailingAsyncFib g = new FailingAsyncFib(9);
897	>	try {
898	>	invokeAll(g);
899	>	shouldThrow();
900	>	} catch (FJException success) {
901	>	checkCompletedAbnormally(g, success);
902		}
903	<	};
904	<	mainPool.invoke(a);
903	>	}};
904	>	testInvokeOnPool(mainPool(), a);
905		}
906
907	<	/**
907	>	/**
908		* invokeAll(tasks) with > 2 argument throws exception if any task does
909		*/
910		public void testAbnormalInvokeAll3() {
911	<	RecursiveAction a = new RecursiveAction() {
912	<	public void compute() {
913	<	try {
914	<	AsyncFib f = new AsyncFib(8);
915	<	FailingAsyncFib g = new FailingAsyncFib(9);
916	<	AsyncFib h = new AsyncFib(7);
917	<	invokeAll(f, g, h);
918	<	shouldThrow();
919	<	} catch(FJException success) {
920	<	}
911	>	RecursiveAction a = new CheckedRecursiveAction() {
912	>	protected void realCompute() {
913	>	AsyncFib f = new AsyncFib(8);
914	>	FailingAsyncFib g = new FailingAsyncFib(9);
915	>	AsyncFib h = new AsyncFib(7);
916	>	ForkJoinTask[] tasks = { f, g, h };
917	>	Collections.shuffle(Arrays.asList(tasks));
918	>	try {
919	>	invokeAll(tasks);
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(collection)  throws exception if any task does
928	>	/**
929	>	* invokeAll(collection) throws exception if any task does
930		*/
931		public void testAbnormalInvokeAllCollection() {
932	<	RecursiveAction a = new RecursiveAction() {
933	<	public void compute() {
934	<	try {
935	<	FailingAsyncFib f = new FailingAsyncFib(8);
936	<	AsyncFib g = new AsyncFib(9);
937	<	AsyncFib h = new AsyncFib(7);
938	<	HashSet set = new HashSet();
939	<	set.add(f);
940	<	set.add(g);
941	<	set.add(h);
942	<	invokeAll(set);
943	<	shouldThrow();
944	<	} catch(FJException success) {
917	<	}
932	>	RecursiveAction a = new CheckedRecursiveAction() {
933	>	protected void realCompute() {
934	>	FailingAsyncFib f = new FailingAsyncFib(8);
935	>	AsyncFib g = new AsyncFib(9);
936	>	AsyncFib h = new AsyncFib(7);
937	>	ForkJoinTask[] tasks = { f, g, h };
938	>	List taskList = Arrays.asList(tasks);
939	>	Collections.shuffle(taskList);
940	>	try {
941	>	invokeAll(taskList);
942	>	shouldThrow();
943	>	} catch (FJException success) {
944	>	checkCompletedAbnormally(f, success);
945		}
946	<	};
947	<	mainPool.invoke(a);
946	>	}};
947	>	testInvokeOnPool(mainPool(), a);
948		}
949
950	<	/**
950	>	/**
951		* tryUnfork returns true for most recent unexecuted task,
952		* and suppresses execution
953		*/
954		public void testTryUnfork() {
955	<	RecursiveAction a = new RecursiveAction() {
956	<	public void compute() {
957	<	AsyncFib g = new AsyncFib(9);
958	<	g.fork();
959	<	AsyncFib f = new AsyncFib(8);
960	<	f.fork();
961	<	threadAssertTrue(f.tryUnfork());
962	<	helpQuiesce();
963	<	threadAssertFalse(f.isDone());
964	<	threadAssertTrue(g.isDone());
965	<	}
966	<	};
940	<	singletonPool.invoke(a);
955	>	RecursiveAction a = new CheckedRecursiveAction() {
956	>	protected void realCompute() {
957	>	AsyncFib g = new AsyncFib(9);
958	>	assertSame(g, g.fork());
959	>	AsyncFib f = new AsyncFib(8);
960	>	assertSame(f, f.fork());
961	>	assertTrue(f.tryUnfork());
962	>	helpQuiesce();
963	>	checkNotDone(f);
964	>	checkCompletedNormally(g);
965	>	}};
966	>	testInvokeOnPool(singletonPool(), a);
967		}
968
969	<	/**
969	>	/**
970		* getSurplusQueuedTaskCount returns > 0 when
971		* there are more tasks than threads
972		*/
973		public void testGetSurplusQueuedTaskCount() {
974	<	RecursiveAction a = new RecursiveAction() {
975	<	public void compute() {
976	<	AsyncFib h = new AsyncFib(7);
977	<	h.fork();
978	<	AsyncFib g = new AsyncFib(9);
979	<	g.fork();
980	<	AsyncFib f = new AsyncFib(8);
981	<	f.fork();
982	<	threadAssertTrue(getSurplusQueuedTaskCount() > 0);
983	<	helpQuiesce();
984	<	}
985	<	};
986	<	singletonPool.invoke(a);
974	>	RecursiveAction a = new CheckedRecursiveAction() {
975	>	protected void realCompute() {
976	>	AsyncFib h = new AsyncFib(7);
977	>	assertSame(h, h.fork());
978	>	AsyncFib g = new AsyncFib(9);
979	>	assertSame(g, g.fork());
980	>	AsyncFib f = new AsyncFib(8);
981	>	assertSame(f, f.fork());
982	>	assertTrue(getSurplusQueuedTaskCount() > 0);
983	>	helpQuiesce();
984	>	assertEquals(0, getSurplusQueuedTaskCount());
985	>	checkCompletedNormally(f);
986	>	checkCompletedNormally(g);
987	>	checkCompletedNormally(h);
988	>	}};
989	>	testInvokeOnPool(singletonPool(), a);
990		}
991
992	<	/**
992	>	/**
993		* peekNextLocalTask returns most recent unexecuted task.
994		*/
995		public void testPeekNextLocalTask() {
996	<	RecursiveAction a = new RecursiveAction() {
997	<	public void compute() {
998	<	AsyncFib g = new AsyncFib(9);
999	<	g.fork();
1000	<	AsyncFib f = new AsyncFib(8);
1001	<	f.fork();
1002	<	threadAssertTrue(peekNextLocalTask() == f);
1003	<	f.join();
1004	<	threadAssertTrue(f.isDone());
1005	<	helpQuiesce();
1006	<	}
1007	<	};
1008	<	singletonPool.invoke(a);
996	>	RecursiveAction a = new CheckedRecursiveAction() {
997	>	protected void realCompute() {
998	>	AsyncFib g = new AsyncFib(9);
999	>	assertSame(g, g.fork());
1000	>	AsyncFib f = new AsyncFib(8);
1001	>	assertSame(f, f.fork());
1002	>	assertSame(f, peekNextLocalTask());
1003	>	assertNull(f.join());
1004	>	checkCompletedNormally(f);
1005	>	helpQuiesce();
1006	>	checkCompletedNormally(g);
1007	>	}};
1008	>	testInvokeOnPool(singletonPool(), a);
1009		}
1010
1011	<	/**
1012	<	* pollNextLocalTask returns most recent unexecuted task
1013	<	* without executing it
1011	>	/**
1012	>	* pollNextLocalTask returns most recent unexecuted task without
1013	>	* executing it
1014		*/
1015		public void testPollNextLocalTask() {
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(pollNextLocalTask() == f);
1023	<	helpQuiesce();
1024	<	threadAssertFalse(f.isDone());
1025	<	}
1026	<	};
1027	<	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, pollNextLocalTask());
1023	>	helpQuiesce();
1024	>	checkNotDone(f);
1025	>	assertEquals(34, g.number);
1026	>	checkCompletedNormally(g);
1027	>	}};
1028	>	testInvokeOnPool(singletonPool(), a);
1029		}
1030
1031	<	/**
1032	<	* pollTask returns an unexecuted task
1003	<	* without executing it
1031	>	/**
1032	>	* pollTask returns an unexecuted task without executing it
1033		*/
1034		public void testPollTask() {
1035	<	RecursiveAction a = new RecursiveAction() {
1036	<	public void compute() {
1037	<	AsyncFib g = new AsyncFib(9);
1038	<	g.fork();
1039	<	AsyncFib f = new AsyncFib(8);
1040	<	f.fork();
1041	<	threadAssertTrue(pollTask() == f);
1042	<	helpQuiesce();
1043	<	threadAssertFalse(f.isDone());
1044	<	threadAssertTrue(g.isDone());
1045	<	}
1046	<	};
1018	<	singletonPool.invoke(a);
1035	>	RecursiveAction a = new CheckedRecursiveAction() {
1036	>	protected void realCompute() {
1037	>	AsyncFib g = new AsyncFib(9);
1038	>	assertSame(g, g.fork());
1039	>	AsyncFib f = new AsyncFib(8);
1040	>	assertSame(f, f.fork());
1041	>	assertSame(f, pollTask());
1042	>	helpQuiesce();
1043	>	checkNotDone(f);
1044	>	checkCompletedNormally(g);
1045	>	}};
1046	>	testInvokeOnPool(singletonPool(), a);
1047		}
1048
1049	<	/**
1049	>	/**
1050		* peekNextLocalTask returns least recent unexecuted task in async mode
1051		*/
1052		public void testPeekNextLocalTaskAsync() {
1053	<	RecursiveAction a = new RecursiveAction() {
1054	<	public void compute() {
1055	<	AsyncFib g = new AsyncFib(9);
1056	<	g.fork();
1057	<	AsyncFib f = new AsyncFib(8);
1058	<	f.fork();
1059	<	threadAssertTrue(peekNextLocalTask() == g);
1060	<	f.join();
1061	<	helpQuiesce();
1062	<	threadAssertTrue(f.isDone());
1063	<	}
1064	<	};
1065	<	asyncSingletonPool.invoke(a);
1053	>	RecursiveAction a = new CheckedRecursiveAction() {
1054	>	protected void realCompute() {
1055	>	AsyncFib g = new AsyncFib(9);
1056	>	assertSame(g, g.fork());
1057	>	AsyncFib f = new AsyncFib(8);
1058	>	assertSame(f, f.fork());
1059	>	assertSame(g, peekNextLocalTask());
1060	>	assertNull(f.join());
1061	>	helpQuiesce();
1062	>	checkCompletedNormally(f);
1063	>	assertEquals(34, g.number);
1064	>	checkCompletedNormally(g);
1065	>	}};
1066	>	testInvokeOnPool(asyncSingletonPool(), a);
1067		}
1068
1069	<	/**
1070	<	* pollNextLocalTask returns least recent unexecuted task
1071	<	* without executing it, in async mode
1069	>	/**
1070	>	* pollNextLocalTask returns least recent unexecuted task without
1071	>	* executing it, in async mode
1072		*/
1073		public void testPollNextLocalTaskAsync() {
1074	<	RecursiveAction a = new RecursiveAction() {
1075	<	public void compute() {
1076	<	AsyncFib g = new AsyncFib(9);
1077	<	g.fork();
1078	<	AsyncFib f = new AsyncFib(8);
1079	<	f.fork();
1080	<	threadAssertTrue(pollNextLocalTask() == g);
1081	<	helpQuiesce();
1082	<	threadAssertTrue(f.isDone());
1083	<	threadAssertFalse(g.isDone());
1084	<	}
1085	<	};
1086	<	asyncSingletonPool.invoke(a);
1074	>	RecursiveAction a = new CheckedRecursiveAction() {
1075	>	protected void realCompute() {
1076	>	AsyncFib g = new AsyncFib(9);
1077	>	assertSame(g, g.fork());
1078	>	AsyncFib f = new AsyncFib(8);
1079	>	assertSame(f, f.fork());
1080	>	assertSame(g, pollNextLocalTask());
1081	>	helpQuiesce();
1082	>	assertEquals(21, f.number);
1083	>	checkCompletedNormally(f);
1084	>	checkNotDone(g);
1085	>	}};
1086	>	testInvokeOnPool(asyncSingletonPool(), a);
1087		}
1088
1089	<	/**
1090	<	* pollTask returns an unexecuted task
1091	<	* without executing it, in async mode
1089	>	/**
1090	>	* pollTask returns an unexecuted task without executing it, in
1091	>	* async mode
1092		*/
1093		public void testPollTaskAsync() {
1094	<	RecursiveAction a = new RecursiveAction() {
1095	<	public void compute() {
1096	<	AsyncFib g = new AsyncFib(9);
1097	<	g.fork();
1098	<	AsyncFib f = new AsyncFib(8);
1099	<	f.fork();
1100	<	threadAssertTrue(pollTask() == g);
1101	<	helpQuiesce();
1102	<	threadAssertTrue(f.isDone());
1103	<	threadAssertFalse(g.isDone());
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, pollTask());
1101	>	helpQuiesce();
1102	>	assertEquals(21, f.number);
1103	>	checkCompletedNormally(f);
1104	>	checkNotDone(g);
1105	>	}};
1106	>	testInvokeOnPool(asyncSingletonPool(), a);
1107	>	}
1108	>
1109	>	// versions for singleton pools
1110	>
1111	>	/**
1112	>	* invoke returns when task completes normally.
1113	>	* isCompletedAbnormally and isCancelled return false for normally
1114	>	* completed tasks; getRawResult returns null.
1115	>	*/
1116	>	public void testInvokeSingleton() {
1117	>	RecursiveAction a = new CheckedRecursiveAction() {
1118	>	protected void realCompute() {
1119	>	AsyncFib f = new AsyncFib(8);
1120	>	assertNull(f.invoke());
1121	>	assertEquals(21, f.number);
1122	>	checkCompletedNormally(f);
1123	>	}};
1124	>	testInvokeOnPool(singletonPool(), a);
1125	>	}
1126	>
1127	>	/**
1128	>	* quietlyInvoke task returns when task completes normally.
1129	>	* isCompletedAbnormally and isCancelled return false for normally
1130	>	* completed tasks
1131	>	*/
1132	>	public void testQuietlyInvokeSingleton() {
1133	>	RecursiveAction a = new CheckedRecursiveAction() {
1134	>	protected void realCompute() {
1135	>	AsyncFib f = new AsyncFib(8);
1136	>	f.quietlyInvoke();
1137	>	assertEquals(21, f.number);
1138	>	checkCompletedNormally(f);
1139	>	}};
1140	>	testInvokeOnPool(singletonPool(), a);
1141	>	}
1142	>
1143	>	/**
1144	>	* join of a forked task returns when task completes
1145	>	*/
1146	>	public void testForkJoinSingleton() {
1147	>	RecursiveAction a = new CheckedRecursiveAction() {
1148	>	protected void realCompute() {
1149	>	AsyncFib f = new AsyncFib(8);
1150	>	assertSame(f, f.fork());
1151	>	assertNull(f.join());
1152	>	assertEquals(21, f.number);
1153	>	checkCompletedNormally(f);
1154	>	}};
1155	>	testInvokeOnPool(singletonPool(), a);
1156	>	}
1157	>
1158	>	/**
1159	>	* get of a forked task returns when task completes
1160	>	*/
1161	>	public void testForkGetSingleton() {
1162	>	RecursiveAction a = new CheckedRecursiveAction() {
1163	>	protected void realCompute() throws Exception {
1164	>	AsyncFib f = new AsyncFib(8);
1165	>	assertSame(f, f.fork());
1166	>	assertNull(f.get());
1167	>	assertEquals(21, f.number);
1168	>	checkCompletedNormally(f);
1169	>	}};
1170	>	testInvokeOnPool(singletonPool(), a);
1171	>	}
1172	>
1173	>	/**
1174	>	* timed get of a forked task returns when task completes
1175	>	*/
1176	>	public void testForkTimedGetSingleton() {
1177	>	RecursiveAction a = new CheckedRecursiveAction() {
1178	>	protected void realCompute() throws Exception {
1179	>	AsyncFib f = new AsyncFib(8);
1180	>	assertSame(f, f.fork());
1181	>	assertNull(f.get(LONG_DELAY_MS, MILLISECONDS));
1182	>	assertEquals(21, f.number);
1183	>	checkCompletedNormally(f);
1184	>	}};
1185	>	testInvokeOnPool(singletonPool(), a);
1186	>	}
1187	>
1188	>	/**
1189	>	* timed get with null time unit throws NPE
1190	>	*/
1191	>	public void testForkTimedGetNPESingleton() {
1192	>	RecursiveAction a = new CheckedRecursiveAction() {
1193	>	protected void realCompute() throws Exception {
1194	>	AsyncFib f = new AsyncFib(8);
1195	>	assertSame(f, f.fork());
1196	>	try {
1197	>	f.get(5L, null);
1198	>	shouldThrow();
1199	>	} catch (NullPointerException success) {}
1200	>	}};
1201	>	testInvokeOnPool(singletonPool(), a);
1202	>	}
1203	>
1204	>	/**
1205	>	* quietlyJoin of a forked task returns when task completes
1206	>	*/
1207	>	public void testForkQuietlyJoinSingleton() {
1208	>	RecursiveAction a = new CheckedRecursiveAction() {
1209	>	protected void realCompute() {
1210	>	AsyncFib f = new AsyncFib(8);
1211	>	assertSame(f, f.fork());
1212	>	f.quietlyJoin();
1213	>	assertEquals(21, f.number);
1214	>	checkCompletedNormally(f);
1215	>	}};
1216	>	testInvokeOnPool(singletonPool(), a);
1217	>	}
1218	>
1219	>	/**
1220	>	* helpQuiesce returns when tasks are complete.
1221	>	* getQueuedTaskCount returns 0 when quiescent
1222	>	*/
1223	>	public void testForkHelpQuiesceSingleton() {
1224	>	RecursiveAction a = new CheckedRecursiveAction() {
1225	>	protected void realCompute() {
1226	>	AsyncFib f = new AsyncFib(8);
1227	>	assertSame(f, f.fork());
1228	>	helpQuiesce();
1229	>	assertEquals(0, getQueuedTaskCount());
1230	>	assertEquals(21, f.number);
1231	>	checkCompletedNormally(f);
1232	>	}};
1233	>	testInvokeOnPool(singletonPool(), a);
1234	>	}
1235	>
1236	>	/**
1237	>	* invoke task throws exception when task completes abnormally
1238	>	*/
1239	>	public void testAbnormalInvokeSingleton() {
1240	>	RecursiveAction a = new CheckedRecursiveAction() {
1241	>	protected void realCompute() {
1242	>	FailingAsyncFib f = new FailingAsyncFib(8);
1243	>	try {
1244	>	f.invoke();
1245	>	shouldThrow();
1246	>	} catch (FJException success) {
1247	>	checkCompletedAbnormally(f, success);
1248	>	}
1249	>	}};
1250	>	testInvokeOnPool(singletonPool(), a);
1251	>	}
1252	>
1253	>	/**
1254	>	* quietlyInvoke task returns when task completes abnormally
1255	>	*/
1256	>	public void testAbnormalQuietlyInvokeSingleton() {
1257	>	RecursiveAction a = new CheckedRecursiveAction() {
1258	>	protected void realCompute() {
1259	>	FailingAsyncFib f = new FailingAsyncFib(8);
1260	>	f.quietlyInvoke();
1261	>	assertTrue(f.getException() instanceof FJException);
1262	>	checkCompletedAbnormally(f, f.getException());
1263	>	}};
1264	>	testInvokeOnPool(singletonPool(), a);
1265	>	}
1266	>
1267	>	/**
1268	>	* join of a forked task throws exception when task completes abnormally
1269	>	*/
1270	>	public void testAbnormalForkJoinSingleton() {
1271	>	RecursiveAction a = new CheckedRecursiveAction() {
1272	>	protected void realCompute() {
1273	>	FailingAsyncFib f = new FailingAsyncFib(8);
1274	>	assertSame(f, f.fork());
1275	>	try {
1276	>	f.join();
1277	>	shouldThrow();
1278	>	} catch (FJException success) {
1279	>	checkCompletedAbnormally(f, success);
1280	>	}
1281	>	}};
1282	>	testInvokeOnPool(singletonPool(), a);
1283	>	}
1284	>
1285	>	/**
1286	>	* get of a forked task throws exception when task completes abnormally
1287	>	*/
1288	>	public void testAbnormalForkGetSingleton() {
1289	>	RecursiveAction a = new CheckedRecursiveAction() {
1290	>	protected void realCompute() throws Exception {
1291	>	FailingAsyncFib f = new FailingAsyncFib(8);
1292	>	assertSame(f, f.fork());
1293	>	try {
1294	>	f.get();
1295	>	shouldThrow();
1296	>	} catch (ExecutionException success) {
1297	>	Throwable cause = success.getCause();
1298	>	assertTrue(cause instanceof FJException);
1299	>	checkCompletedAbnormally(f, cause);
1300	>	}
1301	>	}};
1302	>	testInvokeOnPool(singletonPool(), a);
1303	>	}
1304	>
1305	>	/**
1306	>	* timed get of a forked task throws exception when task completes abnormally
1307	>	*/
1308	>	public void testAbnormalForkTimedGetSingleton() {
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(LONG_DELAY_MS, MILLISECONDS);
1315	>	shouldThrow();
1316	>	} catch (ExecutionException success) {
1317	>	Throwable cause = success.getCause();
1318	>	assertTrue(cause instanceof FJException);
1319	>	checkCompletedAbnormally(f, cause);
1320	>	}
1321	>	}};
1322	>	testInvokeOnPool(singletonPool(), a);
1323	>	}
1324	>
1325	>	/**
1326	>	* quietlyJoin of a forked task returns when task completes abnormally
1327	>	*/
1328	>	public void testAbnormalForkQuietlyJoinSingleton() {
1329	>	RecursiveAction a = new CheckedRecursiveAction() {
1330	>	protected void realCompute() {
1331	>	FailingAsyncFib f = new FailingAsyncFib(8);
1332	>	assertSame(f, f.fork());
1333	>	f.quietlyJoin();
1334	>	assertTrue(f.getException() instanceof FJException);
1335	>	checkCompletedAbnormally(f, f.getException());
1336	>	}};
1337	>	testInvokeOnPool(singletonPool(), a);
1338	>	}
1339	>
1340	>	/**
1341	>	* invoke task throws exception when task cancelled
1342	>	*/
1343	>	public void testCancelledInvokeSingleton() {
1344	>	RecursiveAction a = new CheckedRecursiveAction() {
1345	>	protected void realCompute() {
1346	>	AsyncFib f = new AsyncFib(8);
1347	>	assertTrue(f.cancel(true));
1348	>	try {
1349	>	f.invoke();
1350	>	shouldThrow();
1351	>	} catch (CancellationException success) {
1352	>	checkCancelled(f);
1353	>	}
1354	>	}};
1355	>	testInvokeOnPool(singletonPool(), a);
1356	>	}
1357	>
1358	>	/**
1359	>	* join of a forked task throws exception when task cancelled
1360	>	*/
1361	>	public void testCancelledForkJoinSingleton() {
1362	>	RecursiveAction a = new CheckedRecursiveAction() {
1363	>	protected void realCompute() {
1364	>	AsyncFib f = new AsyncFib(8);
1365	>	assertTrue(f.cancel(true));
1366	>	assertSame(f, f.fork());
1367	>	try {
1368	>	f.join();
1369	>	shouldThrow();
1370	>	} catch (CancellationException success) {
1371	>	checkCancelled(f);
1372	>	}
1373	>	}};
1374	>	testInvokeOnPool(singletonPool(), a);
1375	>	}
1376	>
1377	>	/**
1378	>	* get of a forked task throws exception when task cancelled
1379	>	*/
1380	>	public void testCancelledForkGetSingleton() {
1381	>	RecursiveAction a = new CheckedRecursiveAction() {
1382	>	protected void realCompute() throws Exception {
1383	>	AsyncFib f = new AsyncFib(8);
1384	>	assertTrue(f.cancel(true));
1385	>	assertSame(f, f.fork());
1386	>	try {
1387	>	f.get();
1388	>	shouldThrow();
1389	>	} catch (CancellationException success) {
1390	>	checkCancelled(f);
1391	>	}
1392	>	}};
1393	>	testInvokeOnPool(singletonPool(), a);
1394	>	}
1395	>
1396	>	/**
1397	>	* timed get of a forked task throws exception when task cancelled
1398	>	*/
1399	>	public void testCancelledForkTimedGetSingleton() throws Exception {
1400	>	RecursiveAction a = new CheckedRecursiveAction() {
1401	>	protected void realCompute() throws Exception {
1402	>	AsyncFib f = new AsyncFib(8);
1403	>	assertTrue(f.cancel(true));
1404	>	assertSame(f, f.fork());
1405	>	try {
1406	>	f.get(LONG_DELAY_MS, MILLISECONDS);
1407	>	shouldThrow();
1408	>	} catch (CancellationException success) {
1409	>	checkCancelled(f);
1410	>	}
1411	>	}};
1412	>	testInvokeOnPool(singletonPool(), a);
1413	>	}
1414	>
1415	>	/**
1416	>	* quietlyJoin of a forked task returns when task cancelled
1417	>	*/
1418	>	public void testCancelledForkQuietlyJoinSingleton() {
1419	>	RecursiveAction a = new CheckedRecursiveAction() {
1420	>	protected void realCompute() {
1421	>	AsyncFib f = new AsyncFib(8);
1422	>	assertTrue(f.cancel(true));
1423	>	assertSame(f, f.fork());
1424	>	f.quietlyJoin();
1425	>	checkCancelled(f);
1426	>	}};
1427	>	testInvokeOnPool(singletonPool(), a);
1428	>	}
1429	>
1430	>	/**
1431	>	* invoke task throws exception after invoking completeExceptionally
1432	>	*/
1433	>	public void testCompleteExceptionallySingleton() {
1434	>	RecursiveAction a = new CheckedRecursiveAction() {
1435	>	protected void realCompute() {
1436	>	AsyncFib f = new AsyncFib(8);
1437	>	f.completeExceptionally(new FJException());
1438	>	try {
1439	>	f.invoke();
1440	>	shouldThrow();
1441	>	} catch (FJException success) {
1442	>	checkCompletedAbnormally(f, success);
1443		}
1444	<	};
1445	<	asyncSingletonPool.invoke(a);
1444	>	}};
1445	>	testInvokeOnPool(singletonPool(), a);
1446		}
1447	+
1448	+	/**
1449	+	* invokeAll(t1, t2) invokes all task arguments
1450	+	*/
1451	+	public void testInvokeAll2Singleton() {
1452	+	RecursiveAction a = new CheckedRecursiveAction() {
1453	+	protected void realCompute() {
1454	+	AsyncFib f = new AsyncFib(8);
1455	+	AsyncFib g = new AsyncFib(9);
1456	+	invokeAll(f, g);
1457	+	assertEquals(21, f.number);
1458	+	assertEquals(34, g.number);
1459	+	checkCompletedNormally(f);
1460	+	checkCompletedNormally(g);
1461	+	}};
1462	+	testInvokeOnPool(singletonPool(), a);
1463	+	}
1464	+
1465	+	/**
1466	+	* invokeAll(tasks) with 1 argument invokes task
1467	+	*/
1468	+	public void testInvokeAll1Singleton() {
1469	+	RecursiveAction a = new CheckedRecursiveAction() {
1470	+	protected void realCompute() {
1471	+	AsyncFib f = new AsyncFib(8);
1472	+	invokeAll(f);
1473	+	checkCompletedNormally(f);
1474	+	assertEquals(21, f.number);
1475	+	}};
1476	+	testInvokeOnPool(singletonPool(), a);
1477	+	}
1478	+
1479	+	/**
1480	+	* invokeAll(tasks) with > 2 argument invokes tasks
1481	+	*/
1482	+	public void testInvokeAll3Singleton() {
1483	+	RecursiveAction a = new CheckedRecursiveAction() {
1484	+	protected void realCompute() {
1485	+	AsyncFib f = new AsyncFib(8);
1486	+	AsyncFib g = new AsyncFib(9);
1487	+	AsyncFib h = new AsyncFib(7);
1488	+	invokeAll(f, g, h);
1489	+	assertEquals(21, f.number);
1490	+	assertEquals(34, g.number);
1491	+	assertEquals(13, h.number);
1492	+	checkCompletedNormally(f);
1493	+	checkCompletedNormally(g);
1494	+	checkCompletedNormally(h);
1495	+	}};
1496	+	testInvokeOnPool(singletonPool(), a);
1497	+	}
1498	+
1499	+	/**
1500	+	* invokeAll(collection) invokes all tasks in the collection
1501	+	*/
1502	+	public void testInvokeAllCollectionSingleton() {
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	+	HashSet set = new HashSet();
1509	+	set.add(f);
1510	+	set.add(g);
1511	+	set.add(h);
1512	+	invokeAll(set);
1513	+	assertEquals(21, f.number);
1514	+	assertEquals(34, g.number);
1515	+	assertEquals(13, h.number);
1516	+	checkCompletedNormally(f);
1517	+	checkCompletedNormally(g);
1518	+	checkCompletedNormally(h);
1519	+	}};
1520	+	testInvokeOnPool(singletonPool(), a);
1521	+	}
1522	+
1523	+	/**
1524	+	* invokeAll(tasks) with any null task throws NPE
1525	+	*/
1526	+	public void testInvokeAllNPESingleton() {
1527	+	RecursiveAction a = new CheckedRecursiveAction() {
1528	+	protected void realCompute() {
1529	+	AsyncFib f = new AsyncFib(8);
1530	+	AsyncFib g = new AsyncFib(9);
1531	+	AsyncFib h = null;
1532	+	try {
1533	+	invokeAll(f, g, h);
1534	+	shouldThrow();
1535	+	} catch (NullPointerException success) {}
1536	+	}};
1537	+	testInvokeOnPool(singletonPool(), a);
1538	+	}
1539	+
1540	+	/**
1541	+	* invokeAll(t1, t2) throw exception if any task does
1542	+	*/
1543	+	public void testAbnormalInvokeAll2Singleton() {
1544	+	RecursiveAction a = new CheckedRecursiveAction() {
1545	+	protected void realCompute() {
1546	+	AsyncFib f = new AsyncFib(8);
1547	+	FailingAsyncFib g = new FailingAsyncFib(9);
1548	+	ForkJoinTask[] tasks = { f, g };
1549	+	Collections.shuffle(Arrays.asList(tasks));
1550	+	try {
1551	+	invokeAll(tasks);
1552	+	shouldThrow();
1553	+	} catch (FJException success) {
1554	+	checkCompletedAbnormally(g, success);
1555	+	}
1556	+	}};
1557	+	testInvokeOnPool(singletonPool(), a);
1558	+	}
1559	+
1560	+	/**
1561	+	* invokeAll(tasks) with 1 argument throws exception if task does
1562	+	*/
1563	+	public void testAbnormalInvokeAll1Singleton() {
1564	+	RecursiveAction a = new CheckedRecursiveAction() {
1565	+	protected void realCompute() {
1566	+	FailingAsyncFib g = new FailingAsyncFib(9);
1567	+	try {
1568	+	invokeAll(g);
1569	+	shouldThrow();
1570	+	} catch (FJException success) {
1571	+	checkCompletedAbnormally(g, success);
1572	+	}
1573	+	}};
1574	+	testInvokeOnPool(singletonPool(), a);
1575	+	}
1576	+
1577	+	/**
1578	+	* invokeAll(tasks) with > 2 argument throws exception if any task does
1579	+	*/
1580	+	public void testAbnormalInvokeAll3Singleton() {
1581	+	RecursiveAction a = new CheckedRecursiveAction() {
1582	+	protected void realCompute() {
1583	+	AsyncFib f = new AsyncFib(8);
1584	+	FailingAsyncFib g = new FailingAsyncFib(9);
1585	+	AsyncFib h = new AsyncFib(7);
1586	+	ForkJoinTask[] tasks = { f, g, h };
1587	+	Collections.shuffle(Arrays.asList(tasks));
1588	+	try {
1589	+	invokeAll(tasks);
1590	+	shouldThrow();
1591	+	} catch (FJException success) {
1592	+	checkCompletedAbnormally(g, success);
1593	+	}
1594	+	}};
1595	+	testInvokeOnPool(singletonPool(), a);
1596	+	}
1597	+
1598	+	/**
1599	+	* invokeAll(collection) throws exception if any task does
1600	+	*/
1601	+	public void testAbnormalInvokeAllCollectionSingleton() {
1602	+	RecursiveAction a = new CheckedRecursiveAction() {
1603	+	protected void realCompute() {
1604	+	FailingAsyncFib f = new FailingAsyncFib(8);
1605	+	AsyncFib g = new AsyncFib(9);
1606	+	AsyncFib h = new AsyncFib(7);
1607	+	ForkJoinTask[] tasks = { f, g, h };
1608	+	List taskList = Arrays.asList(tasks);
1609	+	Collections.shuffle(taskList);
1610	+	try {
1611	+	invokeAll(taskList);
1612	+	shouldThrow();
1613	+	} catch (FJException success) {
1614	+	checkCompletedAbnormally(f, success);
1615	+	}
1616	+	}};
1617	+	testInvokeOnPool(singletonPool(), a);
1618	+	}
1619	+
1620	+	/**
1621	+	* ForkJoinTask.quietlyComplete returns when task completes
1622	+	* normally without setting a value. The most recent value
1623	+	* established by setRawResult(V) (or null by default) is returned
1624	+	* from invoke.
1625	+	*/
1626	+	public void testQuietlyComplete() {
1627	+	RecursiveAction a = new CheckedRecursiveAction() {
1628	+	protected void realCompute() {
1629	+	AsyncFib f = new AsyncFib(8);
1630	+	f.quietlyComplete();
1631	+	assertEquals(8, f.number);
1632	+	checkCompletedNormally(f);
1633	+	}};
1634	+	testInvokeOnPool(mainPool(), a);
1635	+	}
1636	+
1637		}

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