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Comparing jsr166/src/test/tck/RecursiveTaskTest.java (file contents):
Revision 1.15 by jsr166, Mon Sep 13 20:48:58 2010 UTC vs.
Revision 1.20 by jsr166, Sun Nov 21 08:25:10 2010 UTC

#	Line 8 | Line 8 | import junit.framework.*;
8		import java.util.concurrent.CancellationException;
9		import java.util.concurrent.ExecutionException;
10		import java.util.concurrent.ForkJoinPool;
11	+	import java.util.concurrent.ForkJoinWorkerThread;
12		import java.util.concurrent.RecursiveTask;
13		import java.util.concurrent.TimeUnit;
14	+	import java.util.concurrent.TimeoutException;
15	+	import static java.util.concurrent.TimeUnit.SECONDS;
16		import java.util.HashSet;
17
18		public class RecursiveTaskTest extends JSR166TestCase {
#	Line 37 | Line 40 | public class RecursiveTaskTest extends J
40
41		private <T> T testInvokeOnPool(ForkJoinPool pool, RecursiveTask<T> a) {
42		try {
43	<	return pool.invoke(a);
43	>	checkNotDone(a);
44	>
45	>	T result = pool.invoke(a);
46	>
47	>	checkCompletedNormally(a, result);
48	>	return result;
49		} finally {
50		joinPool(pool);
51		}
52		}
53
54	+	void checkNotDone(RecursiveTask a) {
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	+	if (! (Thread.currentThread() instanceof ForkJoinWorkerThread)) {
63	+	Thread.currentThread().interrupt();
64	+	try {
65	+	a.get();
66	+	shouldThrow();
67	+	} catch (InterruptedException success) {
68	+	} catch (Throwable fail) { threadUnexpectedException(fail); }
69	+
70	+	Thread.currentThread().interrupt();
71	+	try {
72	+	a.get(5L, SECONDS);
73	+	shouldThrow();
74	+	} catch (InterruptedException success) {
75	+	} catch (Throwable fail) { threadUnexpectedException(fail); }
76	+	}
77	+
78	+	try {
79	+	a.get(0L, SECONDS);
80	+	shouldThrow();
81	+	} catch (TimeoutException success) {
82	+	} catch (Throwable fail) { threadUnexpectedException(fail); }
83	+	}
84	+
85	+	<T> void checkCompletedNormally(RecursiveTask<T> a, T expected) {
86	+	assertTrue(a.isDone());
87	+	assertFalse(a.isCancelled());
88	+	assertTrue(a.isCompletedNormally());
89	+	assertFalse(a.isCompletedAbnormally());
90	+	assertNull(a.getException());
91	+	assertSame(expected, a.getRawResult());
92	+	assertSame(expected, a.join());
93	+	try {
94	+	assertSame(expected, a.get());
95	+	} catch (Throwable fail) { threadUnexpectedException(fail); }
96	+	try {
97	+	assertSame(expected, a.get(5L, SECONDS));
98	+	} catch (Throwable fail) { threadUnexpectedException(fail); }
99	+	}
100	+
101	+	/**
102	+	* Waits for the task to complete, and checks that when it does,
103	+	* it will have an Integer result equals to the given int.
104	+	*/
105	+	void checkCompletesNormally(RecursiveTask<Integer> a, int expected) {
106	+	Integer r = a.join();
107	+	assertEquals(expected, (int) r);
108	+	checkCompletedNormally(a, r);
109	+	}
110	+
111	+	/**
112	+	* Like checkCompletesNormally, but verifies that the task has
113	+	* already completed.
114	+	*/
115	+	void checkCompletedNormally(RecursiveTask<Integer> a, int expected) {
116	+	Integer r = a.getRawResult();
117	+	assertEquals(expected, (int) r);
118	+	checkCompletedNormally(a, r);
119	+	}
120	+
121	+	void checkCancelled(RecursiveTask a) {
122	+	assertTrue(a.isDone());
123	+	assertTrue(a.isCancelled());
124	+	assertFalse(a.isCompletedNormally());
125	+	assertTrue(a.isCompletedAbnormally());
126	+	assertTrue(a.getException() instanceof CancellationException);
127	+	assertNull(a.getRawResult());
128	+
129	+	try {
130	+	a.join();
131	+	shouldThrow();
132	+	} catch (CancellationException success) {
133	+	} catch (Throwable fail) { threadUnexpectedException(fail); }
134	+
135	+	try {
136	+	a.get();
137	+	shouldThrow();
138	+	} catch (CancellationException success) {
139	+	} catch (Throwable fail) { threadUnexpectedException(fail); }
140	+
141	+	try {
142	+	a.get(5L, SECONDS);
143	+	shouldThrow();
144	+	} catch (CancellationException success) {
145	+	} catch (Throwable fail) { threadUnexpectedException(fail); }
146	+	}
147	+
148	+	void checkTaskThrew(RecursiveTask a, Throwable t) {
149	+	assertTrue(a.isDone());
150	+	assertFalse(a.isCancelled());
151	+	assertFalse(a.isCompletedNormally());
152	+	assertTrue(a.isCompletedAbnormally());
153	+	assertSame(t, a.getException());
154	+	assertNull(a.getRawResult());
155	+
156	+	try {
157	+	a.join();
158	+	shouldThrow();
159	+	} catch (Throwable expected) {
160	+	assertSame(t, expected);
161	+	}
162	+
163	+	try {
164	+	a.get();
165	+	shouldThrow();
166	+	} catch (ExecutionException success) {
167	+	assertSame(t, success.getCause());
168	+	} catch (Throwable fail) { threadUnexpectedException(fail); }
169	+
170	+	try {
171	+	a.get(5L, SECONDS);
172	+	shouldThrow();
173	+	} catch (ExecutionException success) {
174	+	assertSame(t, success.getCause());
175	+	} catch (Throwable fail) { threadUnexpectedException(fail); }
176	+	}
177	+
178		static final class FJException extends RuntimeException {
179		FJException() { super(); }
180		}
#	Line 51 | Line 183 | public class RecursiveTaskTest extends J
183		static final Integer NoResult = Integer.valueOf(-17);
184
185		// A simple recursive task for testing
186	<	static final class FibTask extends RecursiveTask<Integer> {
186	>	final class FibTask extends CheckedRecursiveTask<Integer> {
187		final int number;
188		FibTask(int n) { number = n; }
189	<	public Integer compute() {
189	>	public Integer realCompute() {
190		int n = number;
191		if (n <= 1)
192		return n;
#	Line 62 | Line 194 | public class RecursiveTaskTest extends J
194		f1.fork();
195		return (new FibTask(n - 2)).compute() + f1.join();
196		}
197	+
198	+	public void publicSetRawResult(Integer result) {
199	+	setRawResult(result);
200	+	}
201		}
202
203		// A recursive action failing in base case
204	<	static final class FailingFibTask extends RecursiveTask<Integer> {
204	>	final class FailingFibTask extends RecursiveTask<Integer> {
205		final int number;
206		int result;
207		FailingFibTask(int n) { number = n; }
#	Line 86 | Line 222 | public class RecursiveTaskTest extends J
222		* returns value;
223		*/
224		public void testInvoke() {
225	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
226	<	public Integer compute() {
225	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
226	>	public Integer realCompute() {
227		FibTask f = new FibTask(8);
228		Integer r = f.invoke();
229	<	threadAssertTrue(r == 21);
230	<	threadAssertTrue(f.isDone());
95	<	threadAssertFalse(f.isCancelled());
96	<	threadAssertFalse(f.isCompletedAbnormally());
97	<	threadAssertTrue(f.getRawResult() == 21);
229	>	assertEquals(21, (int) r);
230	>	checkCompletedNormally(f, r);
231		return r;
232	<	}
100	<	};
232	>	}};
233		assertEquals(21, (int) testInvokeOnPool(mainPool(), a));
234		}
235
#	Line 107 | Line 239 | public class RecursiveTaskTest extends J
239		* completed tasks
240		*/
241		public void testQuietlyInvoke() {
242	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
243	<	public Integer compute() {
242	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
243	>	public Integer realCompute() {
244		FibTask f = new FibTask(8);
245		f.quietlyInvoke();
246	<	Integer r = f.getRawResult();
247	<	threadAssertTrue(r == 21);
248	<	threadAssertTrue(f.isDone());
249	<	threadAssertFalse(f.isCancelled());
118	<	threadAssertFalse(f.isCompletedAbnormally());
119	<	return r;
120	<	}
121	<	};
122	<	assertEquals(21, (int) testInvokeOnPool(mainPool(), a));
246	>	checkCompletedNormally(f, 21);
247	>	return NoResult;
248	>	}};
249	>	assertSame(NoResult, testInvokeOnPool(mainPool(), a));
250		}
251
252		/**
253		* join of a forked task returns when task completes
254		*/
255		public void testForkJoin() {
256	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
257	<	public Integer compute() {
256	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
257	>	public Integer realCompute() {
258		FibTask f = new FibTask(8);
259	<	f.fork();
259	>	assertSame(f, f.fork());
260		Integer r = f.join();
261	<	threadAssertTrue(r == 21);
262	<	threadAssertTrue(f.isDone());
261	>	assertEquals(21, (int) r);
262	>	checkCompletedNormally(f, r);
263		return r;
264	<	}
138	<	};
264	>	}};
265		assertEquals(21, (int) testInvokeOnPool(mainPool(), a));
266		}
267
#	Line 143 | Line 269 | public class RecursiveTaskTest extends J
269		* get of a forked task returns when task completes
270		*/
271		public void testForkGet() {
272	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
273	<	public Integer compute() {
274	<	try {
275	<	FibTask f = new FibTask(8);
276	<	f.fork();
277	<	Integer r = f.get();
278	<	threadAssertTrue(r == 21);
279	<	threadAssertTrue(f.isDone());
280	<	return r;
155	<	} catch (Exception ex) {
156	<	unexpectedException(ex);
157	<	}
158	<	return NoResult;
159	<	}
160	<	};
272	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
273	>	public Integer realCompute() throws Exception {
274	>	FibTask f = new FibTask(8);
275	>	assertSame(f, f.fork());
276	>	Integer r = f.get();
277	>	assertEquals(21, (int) r);
278	>	checkCompletedNormally(f, r);
279	>	return r;
280	>	}};
281		assertEquals(21, (int) testInvokeOnPool(mainPool(), a));
282		}
283
#	Line 165 | Line 285 | public class RecursiveTaskTest extends J
285		* timed get of a forked task returns when task completes
286		*/
287		public void testForkTimedGet() {
288	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
289	<	public Integer compute() {
290	<	try {
291	<	FibTask f = new FibTask(8);
292	<	f.fork();
293	<	Integer r = f.get(5L, TimeUnit.SECONDS);
294	<	threadAssertTrue(r == 21);
295	<	threadAssertTrue(f.isDone());
296	<	return r;
177	<	} catch (Exception ex) {
178	<	unexpectedException(ex);
179	<	}
180	<	return NoResult;
181	<	}
182	<	};
288	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
289	>	public Integer realCompute() throws Exception {
290	>	FibTask f = new FibTask(8);
291	>	assertSame(f, f.fork());
292	>	Integer r = f.get(5L, SECONDS);
293	>	assertEquals(21, (int) r);
294	>	checkCompletedNormally(f, r);
295	>	return r;
296	>	}};
297		assertEquals(21, (int) testInvokeOnPool(mainPool(), a));
298		}
299
#	Line 187 | Line 301 | public class RecursiveTaskTest extends J
301		* quietlyJoin of a forked task returns when task completes
302		*/
303		public void testForkQuietlyJoin() {
304	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
305	<	public Integer compute() {
304	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
305	>	public Integer realCompute() {
306		FibTask f = new FibTask(8);
307	<	f.fork();
307	>	assertSame(f, f.fork());
308		f.quietlyJoin();
309		Integer r = f.getRawResult();
310	<	threadAssertTrue(r == 21);
311	<	threadAssertTrue(f.isDone());
310	>	assertEquals(21, (int) r);
311	>	checkCompletedNormally(f, r);
312		return r;
313	<	}
200	<	};
313	>	}};
314		assertEquals(21, (int) testInvokeOnPool(mainPool(), a));
315		}
316
#	Line 207 | Line 320 | public class RecursiveTaskTest extends J
320		* getQueuedTaskCount returns 0 when quiescent
321		*/
322		public void testForkHelpQuiesce() {
323	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
324	<	public Integer compute() {
323	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
324	>	public Integer realCompute() {
325		FibTask f = new FibTask(8);
326	<	f.fork();
326	>	assertSame(f, f.fork());
327		f.helpQuiesce();
328	<	Integer r = f.getRawResult();
329	<	threadAssertTrue(r == 21);
330	<	threadAssertTrue(f.isDone());
331	<	threadAssertTrue(getQueuedTaskCount() == 0);
332	<	return r;
220	<	}
221	<	};
222	<	assertEquals(21, (int) testInvokeOnPool(mainPool(), a));
328	>	assertEquals(0, getQueuedTaskCount());
329	>	checkCompletedNormally(f, 21);
330	>	return NoResult;
331	>	}};
332	>	assertSame(NoResult, testInvokeOnPool(mainPool(), a));
333		}
334
335
#	Line 227 | Line 337 | public class RecursiveTaskTest extends J
337		* invoke task throws exception when task completes abnormally
338		*/
339		public void testAbnormalInvoke() {
340	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
341	<	public Integer compute() {
340	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
341	>	public Integer realCompute() {
342	>	FailingFibTask f = new FailingFibTask(8);
343		try {
233	–	FailingFibTask f = new FailingFibTask(8);
344		f.invoke();
345		shouldThrow();
236	–	return NoResult;
346		} catch (FJException success) {
347	+	checkTaskThrew(f, success);
348		}
349		return NoResult;
350	<	}
241	<	};
350	>	}};
351		assertSame(NoResult, testInvokeOnPool(mainPool(), a));
352		}
353
#	Line 246 | Line 355 | public class RecursiveTaskTest extends J
355		* quietlyInvoke task returns when task completes abnormally
356		*/
357		public void testAbnormalQuietlyInvoke() {
358	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
359	<	public Integer compute() {
358	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
359	>	public Integer realCompute() {
360		FailingFibTask f = new FailingFibTask(8);
361		f.quietlyInvoke();
362	<	threadAssertTrue(f.isDone());
362	>	assertTrue(f.getException() instanceof FJException);
363	>	checkTaskThrew(f, f.getException());
364		return NoResult;
365	<	}
256	<	};
365	>	}};
366		assertSame(NoResult, testInvokeOnPool(mainPool(), a));
367		}
368
#	Line 261 | Line 370 | public class RecursiveTaskTest extends J
370		* join of a forked task throws exception when task completes abnormally
371		*/
372		public void testAbnormalForkJoin() {
373	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
374	<	public Integer compute() {
373	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
374	>	public Integer realCompute() {
375	>	FailingFibTask f = new FailingFibTask(8);
376	>	assertSame(f, f.fork());
377		try {
267	–	FailingFibTask f = new FailingFibTask(8);
268	–	f.fork();
378		Integer r = f.join();
379		shouldThrow();
271	–	return r;
380		} catch (FJException success) {
381	+	checkTaskThrew(f, success);
382		}
383		return NoResult;
384	<	}
276	<	};
384	>	}};
385		assertSame(NoResult, testInvokeOnPool(mainPool(), a));
386		}
387
#	Line 281 | Line 389 | public class RecursiveTaskTest extends J
389		* get of a forked task throws exception when task completes abnormally
390		*/
391		public void testAbnormalForkGet() {
392	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
393	<	public Integer compute() {
392	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
393	>	public Integer realCompute() throws Exception {
394	>	FailingFibTask f = new FailingFibTask(8);
395	>	assertSame(f, f.fork());
396		try {
287	–	FailingFibTask f = new FailingFibTask(8);
288	–	f.fork();
397		Integer r = f.get();
398		shouldThrow();
291	–	return r;
399		} catch (ExecutionException success) {
400	<	} catch (Exception ex) {
294	<	unexpectedException(ex);
400	>	checkTaskThrew(f, success.getCause());
401		}
402		return NoResult;
403	<	}
298	<	};
403	>	}};
404		assertSame(NoResult, testInvokeOnPool(mainPool(), a));
405		}
406
#	Line 303 | Line 408 | public class RecursiveTaskTest extends J
408		* timed get of a forked task throws exception when task completes abnormally
409		*/
410		public void testAbnormalForkTimedGet() {
411	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
412	<	public Integer compute() {
411	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
412	>	public Integer realCompute() throws Exception {
413	>	FailingFibTask f = new FailingFibTask(8);
414	>	assertSame(f, f.fork());
415		try {
416	<	FailingFibTask f = new FailingFibTask(8);
310	<	f.fork();
311	<	Integer r = f.get(5L, TimeUnit.SECONDS);
416	>	Integer r = f.get(5L, SECONDS);
417		shouldThrow();
313	–	return r;
418		} catch (ExecutionException success) {
419	<	} catch (Exception ex) {
316	<	unexpectedException(ex);
419	>	checkTaskThrew(f, success.getCause());
420		}
421		return NoResult;
422	<	}
320	<	};
422	>	}};
423		assertSame(NoResult, testInvokeOnPool(mainPool(), a));
424		}
425
#	Line 325 | Line 427 | public class RecursiveTaskTest extends J
427		* quietlyJoin of a forked task returns when task completes abnormally
428		*/
429		public void testAbnormalForkQuietlyJoin() {
430	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
431	<	public Integer compute() {
430	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
431	>	public Integer realCompute() {
432		FailingFibTask f = new FailingFibTask(8);
433	<	f.fork();
433	>	assertSame(f, f.fork());
434		f.quietlyJoin();
435	<	threadAssertTrue(f.isDone());
436	<	threadAssertTrue(f.isCompletedAbnormally());
335	<	threadAssertTrue(f.getException() instanceof FJException);
435	>	assertTrue(f.getException() instanceof FJException);
436	>	checkTaskThrew(f, f.getException());
437		return NoResult;
438	<	}
338	<	};
438	>	}};
439		assertSame(NoResult, testInvokeOnPool(mainPool(), a));
440		}
441
#	Line 343 | Line 443 | public class RecursiveTaskTest extends J
443		* invoke task throws exception when task cancelled
444		*/
445		public void testCancelledInvoke() {
446	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
447	<	public Integer compute() {
446	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
447	>	public Integer realCompute() {
448	>	FibTask f = new FibTask(8);
449	>	assertTrue(f.cancel(true));
450		try {
349	–	FibTask f = new FibTask(8);
350	–	f.cancel(true);
451		Integer r = f.invoke();
452		shouldThrow();
353	–	return r;
453		} catch (CancellationException success) {
454	+	checkCancelled(f);
455		}
456		return NoResult;
457	<	}
358	<	};
457	>	}};
458		assertSame(NoResult, testInvokeOnPool(mainPool(), a));
459		}
460
#	Line 363 | Line 462 | public class RecursiveTaskTest extends J
462		* join of a forked task throws exception when task cancelled
463		*/
464		public void testCancelledForkJoin() {
465	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
466	<	public Integer compute() {
465	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
466	>	public Integer realCompute() {
467	>	FibTask f = new FibTask(8);
468	>	assertTrue(f.cancel(true));
469	>	assertSame(f, f.fork());
470		try {
369	–	FibTask f = new FibTask(8);
370	–	f.cancel(true);
371	–	f.fork();
471		Integer r = f.join();
472		shouldThrow();
374	–	return r;
473		} catch (CancellationException success) {
474	+	checkCancelled(f);
475		}
476		return NoResult;
477	<	}
379	<	};
477	>	}};
478		assertSame(NoResult, testInvokeOnPool(mainPool(), a));
479		}
480
#	Line 384 | Line 482 | public class RecursiveTaskTest extends J
482		* get of a forked task throws exception when task cancelled
483		*/
484		public void testCancelledForkGet() {
485	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
486	<	public Integer compute() {
485	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
486	>	public Integer realCompute() throws Exception {
487	>	FibTask f = new FibTask(8);
488	>	assertTrue(f.cancel(true));
489	>	assertSame(f, f.fork());
490		try {
390	–	FibTask f = new FibTask(8);
391	–	f.cancel(true);
392	–	f.fork();
491		Integer r = f.get();
492		shouldThrow();
395	–	return r;
493		} catch (CancellationException success) {
494	<	} catch (Exception ex) {
398	<	unexpectedException(ex);
494	>	checkCancelled(f);
495		}
496		return NoResult;
497	<	}
402	<	};
497	>	}};
498		assertSame(NoResult, testInvokeOnPool(mainPool(), a));
499		}
500
#	Line 407 | Line 502 | public class RecursiveTaskTest extends J
502		* timed get of a forked task throws exception when task cancelled
503		*/
504		public void testCancelledForkTimedGet() {
505	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
506	<	public Integer compute() {
505	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
506	>	public Integer realCompute() throws Exception {
507	>	FibTask f = new FibTask(8);
508	>	assertTrue(f.cancel(true));
509	>	assertSame(f, f.fork());
510		try {
511	<	FibTask f = new FibTask(8);
414	<	f.cancel(true);
415	<	f.fork();
416	<	Integer r = f.get(5L, TimeUnit.SECONDS);
511	>	Integer r = f.get(5L, SECONDS);
512		shouldThrow();
418	–	return r;
513		} catch (CancellationException success) {
514	<	} catch (Exception ex) {
421	<	unexpectedException(ex);
514	>	checkCancelled(f);
515		}
516		return NoResult;
517	<	}
425	<	};
517	>	}};
518		assertSame(NoResult, testInvokeOnPool(mainPool(), a));
519		}
520
#	Line 430 | Line 522 | public class RecursiveTaskTest extends J
522		* quietlyJoin of a forked task returns when task cancelled
523		*/
524		public void testCancelledForkQuietlyJoin() {
525	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
526	<	public Integer compute() {
525	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
526	>	public Integer realCompute() {
527		FibTask f = new FibTask(8);
528	<	f.cancel(true);
529	<	f.fork();
528	>	assertTrue(f.cancel(true));
529	>	assertSame(f, f.fork());
530		f.quietlyJoin();
531	<	threadAssertTrue(f.isDone());
440	<	threadAssertTrue(f.isCompletedAbnormally());
441	<	threadAssertTrue(f.getException() instanceof CancellationException);
531	>	checkCancelled(f);
532		return NoResult;
533	<	}
444	<	};
533	>	}};
534		assertSame(NoResult, testInvokeOnPool(mainPool(), a));
535		}
536
#	Line 450 | Line 539 | public class RecursiveTaskTest extends J
539		*/
540		public void testGetPool() {
541		final ForkJoinPool mainPool = mainPool();
542	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
543	<	public Integer compute() {
544	<	threadAssertTrue(getPool() == mainPool);
542	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
543	>	public Integer realCompute() {
544	>	assertSame(mainPool, getPool());
545		return NoResult;
546	<	}
458	<	};
546	>	}};
547		assertSame(NoResult, testInvokeOnPool(mainPool, a));
548		}
549
#	Line 463 | Line 551 | public class RecursiveTaskTest extends J
551		* getPool of non-FJ task returns null
552		*/
553		public void testGetPool2() {
554	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
555	<	public Integer compute() {
556	<	threadAssertTrue(getPool() == null);
554	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
555	>	public Integer realCompute() {
556	>	assertNull(getPool());
557		return NoResult;
558	<	}
559	<	};
472	<	a.invoke();
558	>	}};
559	>	assertSame(NoResult, a.invoke());
560		}
561
562		/**
563		* inForkJoinPool of executing task returns true
564		*/
565		public void testInForkJoinPool() {
566	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
567	<	public Integer compute() {
568	<	threadAssertTrue(inForkJoinPool());
566	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
567	>	public Integer realCompute() {
568	>	assertTrue(inForkJoinPool());
569		return NoResult;
570	<	}
484	<	};
570	>	}};
571		assertSame(NoResult, testInvokeOnPool(mainPool(), a));
572		}
573
#	Line 489 | Line 575 | public class RecursiveTaskTest extends J
575		* inForkJoinPool of non-FJ task returns false
576		*/
577		public void testInForkJoinPool2() {
578	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
579	<	public Integer compute() {
580	<	threadAssertTrue(!inForkJoinPool());
578	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
579	>	public Integer realCompute() {
580	>	assertTrue(!inForkJoinPool());
581		return NoResult;
582	<	}
583	<	};
498	<	a.invoke();
582	>	}};
583	>	assertSame(NoResult, a.invoke());
584		}
585
586		/**
587	<	* The value set by setRawResult is returned by invoke
587	>	* The value set by setRawResult is returned by getRawResult
588		*/
589		public void testSetRawResult() {
590	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
591	<	public Integer compute() {
590	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
591	>	public Integer realCompute() {
592		setRawResult(NoResult);
593	+	assertSame(NoResult, getRawResult());
594		return NoResult;
595		}
596		};
597	<	assertSame(NoResult, a.invoke());
597	>	a.invoke();
598		}
599
600		/**
601	<	* A reinitialized task may be re-invoked
601	>	* A reinitialized normally completed task may be re-invoked
602		*/
603		public void testReinitialize() {
604	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
605	<	public Integer compute() {
604	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
605	>	public Integer realCompute() {
606		FibTask f = new FibTask(8);
607	<	Integer r = f.invoke();
608	<	threadAssertTrue(r == 21);
609	<	threadAssertTrue(f.isDone());
610	<	threadAssertFalse(f.isCancelled());
611	<	threadAssertFalse(f.isCompletedAbnormally());
612	<	f.reinitialize();
613	<	r = f.invoke();
614	<	threadAssertTrue(r == 21);
607	>	checkNotDone(f);
608	>
609	>	for (int i = 0; i < 3; i++) {
610	>	Integer r = f.invoke();
611	>	assertEquals(21, (int) r);
612	>	checkCompletedNormally(f, r);
613	>	f.reinitialize();
614	>	f.publicSetRawResult(null);
615	>	checkNotDone(f);
616	>	}
617		return NoResult;
618	<	}
619	<	};
618	>	}};
619	>	assertSame(NoResult, testInvokeOnPool(mainPool(), a));
620	>	}
621	>
622	>	/**
623	>	* A reinitialized abnormally completed task may be re-invoked
624	>	*/
625	>	public void testReinitializeAbnormal() {
626	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
627	>	public Integer realCompute() {
628	>	FailingFibTask f = new FailingFibTask(8);
629	>	checkNotDone(f);
630	>
631	>	for (int i = 0; i < 3; i++) {
632	>	try {
633	>	f.invoke();
634	>	shouldThrow();
635	>	} catch (FJException success) {
636	>	checkTaskThrew(f, success);
637	>	}
638	>	f.reinitialize();
639	>	checkNotDone(f);
640	>	}
641	>	return NoResult;
642	>	}};
643		assertSame(NoResult, testInvokeOnPool(mainPool(), a));
644		}
645
#	Line 536 | Line 647 | public class RecursiveTaskTest extends J
647		* invoke task throws exception after invoking completeExceptionally
648		*/
649		public void testCompleteExceptionally() {
650	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
651	<	public Integer compute() {
650	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
651	>	public Integer realCompute() {
652	>	FibTask f = new FibTask(8);
653	>	f.completeExceptionally(new FJException());
654		try {
542	–	FibTask f = new FibTask(8);
543	–	f.completeExceptionally(new FJException());
655		Integer r = f.invoke();
656		shouldThrow();
546	–	return r;
657		} catch (FJException success) {
658	+	checkTaskThrew(f, success);
659		}
660		return NoResult;
661	<	}
551	<	};
661	>	}};
662		assertSame(NoResult, testInvokeOnPool(mainPool(), a));
663		}
664
#	Line 556 | Line 666 | public class RecursiveTaskTest extends J
666		* invoke task suppresses execution invoking complete
667		*/
668		public void testComplete() {
669	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
670	<	public Integer compute() {
669	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
670	>	public Integer realCompute() {
671		FibTask f = new FibTask(8);
672		f.complete(NoResult);
673		Integer r = f.invoke();
674	<	threadAssertTrue(f.isDone());
675	<	threadAssertTrue(r == NoResult);
674	>	assertSame(NoResult, r);
675	>	checkCompletedNormally(f, NoResult);
676		return r;
677	<	}
568	<	};
677	>	}};
678		assertSame(NoResult, testInvokeOnPool(mainPool(), a));
679		}
680
#	Line 573 | Line 682 | public class RecursiveTaskTest extends J
682		* invokeAll(t1, t2) invokes all task arguments
683		*/
684		public void testInvokeAll2() {
685	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
686	<	public Integer compute() {
685	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
686	>	public Integer realCompute() {
687		FibTask f = new FibTask(8);
688		FibTask g = new FibTask(9);
689		invokeAll(f, g);
690	<	threadAssertTrue(f.isDone());
691	<	threadAssertTrue(f.join() == 21);
583	<	threadAssertTrue(g.isDone());
584	<	threadAssertTrue(g.join() == 34);
690	>	checkCompletesNormally(f, 21);
691	>	checkCompletesNormally(g, 34);
692		return NoResult;
693	<	}
587	<	};
693	>	}};
694		assertSame(NoResult, testInvokeOnPool(mainPool(), a));
695		}
696
#	Line 592 | Line 698 | public class RecursiveTaskTest extends J
698		* invokeAll(tasks) with 1 argument invokes task
699		*/
700		public void testInvokeAll1() {
701	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
702	<	public Integer compute() {
701	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
702	>	public Integer realCompute() {
703		FibTask f = new FibTask(8);
704		invokeAll(f);
705	<	threadAssertTrue(f.isDone());
600	<	threadAssertTrue(f.join() == 21);
705	>	checkCompletesNormally(f, 21);
706		return NoResult;
707	<	}
603	<	};
707	>	}};
708		assertSame(NoResult, testInvokeOnPool(mainPool(), a));
709		}
710
#	Line 608 | Line 712 | public class RecursiveTaskTest extends J
712		* invokeAll(tasks) with > 2 argument invokes tasks
713		*/
714		public void testInvokeAll3() {
715	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
716	<	public Integer compute() {
715	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
716	>	public Integer realCompute() {
717		FibTask f = new FibTask(8);
718		FibTask g = new FibTask(9);
719		FibTask h = new FibTask(7);
720		invokeAll(f, g, h);
721	<	threadAssertTrue(f.isDone());
722	<	threadAssertTrue(f.join() == 21);
723	<	threadAssertTrue(g.isDone());
620	<	threadAssertTrue(g.join() == 34);
621	<	threadAssertTrue(h.isDone());
622	<	threadAssertTrue(h.join() == 13);
721	>	checkCompletesNormally(f, 21);
722	>	checkCompletesNormally(g, 34);
723	>	checkCompletesNormally(h, 13);
724		return NoResult;
725	<	}
625	<	};
725	>	}};
726		assertSame(NoResult, testInvokeOnPool(mainPool(), a));
727		}
728
#	Line 630 | Line 730 | public class RecursiveTaskTest extends J
730		* invokeAll(collection) invokes all tasks in the collection
731		*/
732		public void testInvokeAllCollection() {
733	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
734	<	public Integer compute() {
733	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
734	>	public Integer realCompute() {
735		FibTask f = new FibTask(8);
736		FibTask g = new FibTask(9);
737		FibTask h = new FibTask(7);
#	Line 640 | Line 740 | public class RecursiveTaskTest extends J
740		set.add(g);
741		set.add(h);
742		invokeAll(set);
743	<	threadAssertTrue(f.isDone());
744	<	threadAssertTrue(f.join() == 21);
745	<	threadAssertTrue(g.isDone());
646	<	threadAssertTrue(g.join() == 34);
647	<	threadAssertTrue(h.isDone());
648	<	threadAssertTrue(h.join() == 13);
743	>	checkCompletesNormally(f, 21);
744	>	checkCompletesNormally(g, 34);
745	>	checkCompletesNormally(h, 13);
746		return NoResult;
747	<	}
651	<	};
747	>	}};
748		assertSame(NoResult, testInvokeOnPool(mainPool(), a));
749		}
750
751
752		/**
753	+	* invokeAll(tasks) with any null task throws NPE
754	+	*/
755	+	public void testInvokeAllNPE() {
756	+	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
757	+	public Integer realCompute() {
758	+	FibTask f = new FibTask(8);
759	+	FibTask g = new FibTask(9);
760	+	FibTask h = null;
761	+	try {
762	+	invokeAll(f, g, h);
763	+	shouldThrow();
764	+	} catch (NullPointerException success) {}
765	+	return NoResult;
766	+	}};
767	+	assertSame(NoResult, testInvokeOnPool(mainPool(), a));
768	+	}
769	+
770	+	/**
771		* invokeAll(t1, t2) throw exception if any task does
772		*/
773		public void testAbnormalInvokeAll2() {
774	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
775	<	public Integer compute() {
774	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
775	>	public Integer realCompute() {
776	>	FibTask f = new FibTask(8);
777	>	FailingFibTask g = new FailingFibTask(9);
778		try {
663	–	FibTask f = new FibTask(8);
664	–	FailingFibTask g = new FailingFibTask(9);
779		invokeAll(f, g);
780		shouldThrow();
667	–	return NoResult;
781		} catch (FJException success) {
782	+	checkTaskThrew(g, success);
783		}
784		return NoResult;
785	<	}
672	<	};
785	>	}};
786		assertSame(NoResult, testInvokeOnPool(mainPool(), a));
787		}
788
#	Line 677 | Line 790 | public class RecursiveTaskTest extends J
790		* invokeAll(tasks) with 1 argument throws exception if task does
791		*/
792		public void testAbnormalInvokeAll1() {
793	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
794	<	public Integer compute() {
793	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
794	>	public Integer realCompute() {
795	>	FailingFibTask g = new FailingFibTask(9);
796		try {
683	–	FailingFibTask g = new FailingFibTask(9);
797		invokeAll(g);
798		shouldThrow();
686	–	return NoResult;
799		} catch (FJException success) {
800	+	checkTaskThrew(g, success);
801		}
802		return NoResult;
803	<	}
691	<	};
803	>	}};
804		assertSame(NoResult, testInvokeOnPool(mainPool(), a));
805		}
806
#	Line 696 | Line 808 | public class RecursiveTaskTest extends J
808		* invokeAll(tasks) with > 2 argument throws exception if any task does
809		*/
810		public void testAbnormalInvokeAll3() {
811	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
812	<	public Integer compute() {
811	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
812	>	public Integer realCompute() {
813	>	FibTask f = new FibTask(8);
814	>	FailingFibTask g = new FailingFibTask(9);
815	>	FibTask h = new FibTask(7);
816		try {
702	–	FibTask f = new FibTask(8);
703	–	FailingFibTask g = new FailingFibTask(9);
704	–	FibTask h = new FibTask(7);
817		invokeAll(f, g, h);
818		shouldThrow();
707	–	return NoResult;
819		} catch (FJException success) {
820	+	checkTaskThrew(g, success);
821		}
822		return NoResult;
823	<	}
712	<	};
823	>	}};
824		assertSame(NoResult, testInvokeOnPool(mainPool(), a));
825		}
826
#	Line 717 | Line 828 | public class RecursiveTaskTest extends J
828		* invokeAll(collection) throws exception if any task does
829		*/
830		public void testAbnormalInvokeAllCollection() {
831	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
832	<	public Integer compute() {
831	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
832	>	public Integer realCompute() {
833	>	FailingFibTask f = new FailingFibTask(8);
834	>	FibTask g = new FibTask(9);
835	>	FibTask h = new FibTask(7);
836	>	HashSet set = new HashSet();
837	>	set.add(f);
838	>	set.add(g);
839	>	set.add(h);
840		try {
723	–	FailingFibTask f = new FailingFibTask(8);
724	–	FibTask g = new FibTask(9);
725	–	FibTask h = new FibTask(7);
726	–	HashSet set = new HashSet();
727	–	set.add(f);
728	–	set.add(g);
729	–	set.add(h);
841		invokeAll(set);
842		shouldThrow();
732	–	return NoResult;
843		} catch (FJException success) {
844	+	checkTaskThrew(f, success);
845		}
846		return NoResult;
847	<	}
737	<	};
847	>	}};
848		assertSame(NoResult, testInvokeOnPool(mainPool(), a));
849		}
850
#	Line 743 | Line 853 | public class RecursiveTaskTest extends J
853		* and suppresses execution
854		*/
855		public void testTryUnfork() {
856	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
857	<	public Integer compute() {
856	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
857	>	public Integer realCompute() {
858		FibTask g = new FibTask(9);
859	<	g.fork();
859	>	assertSame(g, g.fork());
860		FibTask f = new FibTask(8);
861	<	f.fork();
862	<	threadAssertTrue(f.tryUnfork());
861	>	assertSame(f, f.fork());
862	>	assertTrue(f.tryUnfork());
863		helpQuiesce();
864	<	threadAssertFalse(f.isDone());
865	<	threadAssertTrue(g.isDone());
864	>	checkNotDone(f);
865	>	checkCompletedNormally(g, 34);
866		return NoResult;
867	<	}
758	<	};
867	>	}};
868		assertSame(NoResult, testInvokeOnPool(singletonPool(), a));
869		}
870
#	Line 764 | Line 873 | public class RecursiveTaskTest extends J
873		* there are more tasks than threads
874		*/
875		public void testGetSurplusQueuedTaskCount() {
876	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
877	<	public Integer compute() {
876	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
877	>	public Integer realCompute() {
878		FibTask h = new FibTask(7);
879	<	h.fork();
879	>	assertSame(h, h.fork());
880		FibTask g = new FibTask(9);
881	<	g.fork();
881	>	assertSame(g, g.fork());
882		FibTask f = new FibTask(8);
883	<	f.fork();
884	<	threadAssertTrue(getSurplusQueuedTaskCount() > 0);
883	>	assertSame(f, f.fork());
884	>	assertTrue(getSurplusQueuedTaskCount() > 0);
885		helpQuiesce();
886	+	checkCompletedNormally(f, 21);
887	+	checkCompletedNormally(g, 34);
888	+	checkCompletedNormally(h, 13);
889		return NoResult;
890	<	}
779	<	};
890	>	}};
891		assertSame(NoResult, testInvokeOnPool(singletonPool(), a));
892		}
893
#	Line 784 | Line 895 | public class RecursiveTaskTest extends J
895		* peekNextLocalTask returns most recent unexecuted task.
896		*/
897		public void testPeekNextLocalTask() {
898	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
899	<	public Integer compute() {
898	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
899	>	public Integer realCompute() {
900		FibTask g = new FibTask(9);
901	<	g.fork();
901	>	assertSame(g, g.fork());
902		FibTask f = new FibTask(8);
903	<	f.fork();
904	<	threadAssertTrue(peekNextLocalTask() == f);
905	<	f.join();
795	<	threadAssertTrue(f.isDone());
903	>	assertSame(f, f.fork());
904	>	assertSame(f, peekNextLocalTask());
905	>	checkCompletesNormally(f, 21);
906		helpQuiesce();
907	+	checkCompletedNormally(g, 34);
908		return NoResult;
909	<	}
799	<	};
909	>	}};
910		assertSame(NoResult, testInvokeOnPool(singletonPool(), a));
911		}
912
#	Line 805 | Line 915 | public class RecursiveTaskTest extends J
915		* without executing it
916		*/
917		public void testPollNextLocalTask() {
918	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
919	<	public Integer compute() {
918	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
919	>	public Integer realCompute() {
920		FibTask g = new FibTask(9);
921	<	g.fork();
921	>	assertSame(g, g.fork());
922		FibTask f = new FibTask(8);
923	<	f.fork();
924	<	threadAssertTrue(pollNextLocalTask() == f);
923	>	assertSame(f, f.fork());
924	>	assertSame(f, pollNextLocalTask());
925		helpQuiesce();
926	<	threadAssertFalse(f.isDone());
926	>	checkNotDone(f);
927	>	checkCompletedNormally(g, 34);
928		return NoResult;
929	<	}
819	<	};
929	>	}};
930		assertSame(NoResult, testInvokeOnPool(singletonPool(), a));
931		}
932
#	Line 824 | Line 934 | public class RecursiveTaskTest extends J
934		* pollTask returns an unexecuted task without executing it
935		*/
936		public void testPollTask() {
937	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
938	<	public Integer compute() {
937	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
938	>	public Integer realCompute() {
939		FibTask g = new FibTask(9);
940	<	g.fork();
940	>	assertSame(g, g.fork());
941		FibTask f = new FibTask(8);
942	<	f.fork();
943	<	threadAssertTrue(pollTask() == f);
942	>	assertSame(f, f.fork());
943	>	assertSame(f, pollTask());
944		helpQuiesce();
945	<	threadAssertFalse(f.isDone());
946	<	threadAssertTrue(g.isDone());
945	>	checkNotDone(f);
946	>	checkCompletedNormally(g, 34);
947		return NoResult;
948	<	}
839	<	};
948	>	}};
949		assertSame(NoResult, testInvokeOnPool(singletonPool(), a));
950		}
951
#	Line 844 | Line 953 | public class RecursiveTaskTest extends J
953		* peekNextLocalTask returns least recent unexecuted task in async mode
954		*/
955		public void testPeekNextLocalTaskAsync() {
956	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
957	<	public Integer compute() {
956	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
957	>	public Integer realCompute() {
958		FibTask g = new FibTask(9);
959	<	g.fork();
959	>	assertSame(g, g.fork());
960		FibTask f = new FibTask(8);
961	<	f.fork();
962	<	threadAssertTrue(peekNextLocalTask() == g);
963	<	f.join();
961	>	assertSame(f, f.fork());
962	>	assertSame(g, peekNextLocalTask());
963	>	assertEquals(21, (int) f.join());
964		helpQuiesce();
965	<	threadAssertTrue(f.isDone());
965	>	checkCompletedNormally(f, 21);
966	>	checkCompletedNormally(g, 34);
967		return NoResult;
968	<	}
859	<	};
968	>	}};
969		assertSame(NoResult, testInvokeOnPool(asyncSingletonPool(), a));
970		}
971
972		/**
973	<	* pollNextLocalTask returns least recent unexecuted task
974	<	* without executing it, in async mode
973	>	* pollNextLocalTask returns least recent unexecuted task without
974	>	* executing it, in async mode
975		*/
976		public void testPollNextLocalTaskAsync() {
977	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
978	<	public Integer compute() {
977	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
978	>	public Integer realCompute() {
979		FibTask g = new FibTask(9);
980	<	g.fork();
980	>	assertSame(g, g.fork());
981		FibTask f = new FibTask(8);
982	<	f.fork();
983	<	threadAssertTrue(pollNextLocalTask() == g);
982	>	assertSame(f, f.fork());
983	>	assertSame(g, pollNextLocalTask());
984		helpQuiesce();
985	<	threadAssertTrue(f.isDone());
986	<	threadAssertFalse(g.isDone());
985	>	checkCompletedNormally(f, 21);
986	>	checkNotDone(g);
987		return NoResult;
988	<	}
880	<	};
988	>	}};
989		assertSame(NoResult, testInvokeOnPool(asyncSingletonPool(), a));
990		}
991
992		/**
993	<	* pollTask returns an unexecuted task
994	<	* without executing it, in async mode
993	>	* pollTask returns an unexecuted task without executing it, in
994	>	* async mode
995		*/
996		public void testPollTaskAsync() {
997	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
998	<	public Integer compute() {
997	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
998	>	public Integer realCompute() {
999		FibTask g = new FibTask(9);
1000	<	g.fork();
1000	>	assertSame(g, g.fork());
1001		FibTask f = new FibTask(8);
1002	<	f.fork();
1003	<	threadAssertTrue(pollTask() == g);
1002	>	assertSame(f, f.fork());
1003	>	assertSame(g, pollTask());
1004		helpQuiesce();
1005	<	threadAssertTrue(f.isDone());
1006	<	threadAssertFalse(g.isDone());
1005	>	checkCompletedNormally(f, 21);
1006	>	checkNotDone(g);
1007		return NoResult;
1008	<	}
901	<	};
1008	>	}};
1009		assertSame(NoResult, testInvokeOnPool(asyncSingletonPool(), a));
1010		}
1011

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