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Comparing jsr166/src/test/tck/RecursiveTaskTest.java (file contents):
Revision 1.8 by jsr166, Sat Nov 21 02:07:27 2009 UTC vs.
Revision 1.23 by jsr166, Sun Nov 21 20:32:15 2010 UTC

#	Line 3 | Line 3
3		* Expert Group and released to the public domain, as explained at
4		* http://creativecommons.org/licenses/publicdomain
5		*/
6	–	import junit.framework.*;
7	–	import java.util.concurrent.*;
8	–	import java.util.*;
6
7	+	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 {
19
20		public static void main(String[] args) {
21	<	junit.textui.TestRunner.run (suite());
21	>	junit.textui.TestRunner.run(suite());
22		}
23		public static Test suite() {
24		return new TestSuite(RecursiveTaskTest.class);
25		}
26
27	<	static final ForkJoinPool mainPool = new ForkJoinPool();
28	<	static final ForkJoinPool singletonPool = new ForkJoinPool(1);
29	<	static final ForkJoinPool asyncSingletonPool = new ForkJoinPool(1);
30	<	static {
31	<	asyncSingletonPool.setAsyncMode(true);
27	>	private static ForkJoinPool mainPool() {
28	>	return new ForkJoinPool();
29	>	}
30	>
31	>	private static ForkJoinPool singletonPool() {
32	>	return new ForkJoinPool(1);
33	>	}
34	>
35	>	private static ForkJoinPool asyncSingletonPool() {
36	>	return new ForkJoinPool(1,
37	>	ForkJoinPool.defaultForkJoinWorkerThreadFactory,
38	>	null, true);
39	>	}
40	>
41	>	private <T> T testInvokeOnPool(ForkJoinPool pool, RecursiveTask<T> a) {
42	>	try {
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	>	assertFalse(a.cancel(false));
94	>	assertFalse(a.cancel(true));
95	>	try {
96	>	assertSame(expected, a.get());
97	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
98	>	try {
99	>	assertSame(expected, a.get(5L, SECONDS));
100	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
101	>	}
102	>
103	>	/**
104	>	* Waits for the task to complete, and checks that when it does,
105	>	* it will have an Integer result equals to the given int.
106	>	*/
107	>	void checkCompletesNormally(RecursiveTask<Integer> a, int expected) {
108	>	Integer r = a.join();
109	>	assertEquals(expected, (int) r);
110	>	checkCompletedNormally(a, r);
111	>	}
112	>
113	>	/**
114	>	* Like checkCompletesNormally, but verifies that the task has
115	>	* already completed.
116	>	*/
117	>	void checkCompletedNormally(RecursiveTask<Integer> a, int expected) {
118	>	Integer r = a.getRawResult();
119	>	assertEquals(expected, (int) r);
120	>	checkCompletedNormally(a, r);
121	>	}
122	>
123	>	void checkCancelled(RecursiveTask a) {
124	>	assertTrue(a.isDone());
125	>	assertTrue(a.isCancelled());
126	>	assertFalse(a.isCompletedNormally());
127	>	assertTrue(a.isCompletedAbnormally());
128	>	assertTrue(a.getException() instanceof CancellationException);
129	>	assertNull(a.getRawResult());
130	>
131	>	try {
132	>	a.join();
133	>	shouldThrow();
134	>	} catch (CancellationException success) {
135	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
136	>
137	>	try {
138	>	a.get();
139	>	shouldThrow();
140	>	} catch (CancellationException success) {
141	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
142	>
143	>	try {
144	>	a.get(5L, SECONDS);
145	>	shouldThrow();
146	>	} catch (CancellationException success) {
147	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
148	>	}
149	>
150	>	void checkCompletedAbnormally(RecursiveTask a, Throwable t) {
151	>	assertTrue(a.isDone());
152	>	assertFalse(a.isCancelled());
153	>	assertFalse(a.isCompletedNormally());
154	>	assertTrue(a.isCompletedAbnormally());
155	>	assertSame(t, a.getException());
156	>	assertNull(a.getRawResult());
157	>	assertFalse(a.cancel(false));
158	>	assertFalse(a.cancel(true));
159	>
160	>	try {
161	>	a.join();
162	>	shouldThrow();
163	>	} catch (Throwable expected) {
164	>	assertSame(t, expected);
165	>	}
166	>
167	>	try {
168	>	a.get();
169	>	shouldThrow();
170	>	} catch (ExecutionException success) {
171	>	assertSame(t, success.getCause());
172	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
173	>
174	>	try {
175	>	a.get(5L, SECONDS);
176	>	shouldThrow();
177	>	} catch (ExecutionException success) {
178	>	assertSame(t, success.getCause());
179	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
180		}
181
182		static final class FJException extends RuntimeException {
#	Line 32 | Line 187 | public class RecursiveTaskTest extends J
187		static final Integer NoResult = Integer.valueOf(-17);
188
189		// A simple recursive task for testing
190	<	static final class FibTask extends RecursiveTask<Integer> {
190	>	final class FibTask extends CheckedRecursiveTask<Integer> {
191		final int number;
192		FibTask(int n) { number = n; }
193	<	public Integer compute() {
193	>	public Integer realCompute() {
194		int n = number;
195		if (n <= 1)
196		return n;
#	Line 43 | Line 198 | public class RecursiveTaskTest extends J
198		f1.fork();
199		return (new FibTask(n - 2)).compute() + f1.join();
200		}
201	+
202	+	public void publicSetRawResult(Integer result) {
203	+	setRawResult(result);
204	+	}
205		}
206
207		// A recursive action failing in base case
208	<	static final class FailingFibTask extends RecursiveTask<Integer> {
208	>	final class FailingFibTask extends RecursiveTask<Integer> {
209		final int number;
210		int result;
211		FailingFibTask(int n) { number = n; }
#	Line 65 | Line 224 | public class RecursiveTaskTest extends J
224		* isCompletedAbnormally and isCancelled return false for normally
225		* completed tasks. getRawResult of a completed non-null task
226		* returns value;
68	–	*
227		*/
228		public void testInvoke() {
229	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
230	<	public Integer compute() {
229	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
230	>	public Integer realCompute() {
231		FibTask f = new FibTask(8);
232		Integer r = f.invoke();
233	<	threadAssertTrue(r == 21);
234	<	threadAssertTrue(f.isDone());
77	<	threadAssertFalse(f.isCancelled());
78	<	threadAssertFalse(f.isCompletedAbnormally());
79	<	threadAssertTrue(f.getRawResult() == 21);
233	>	assertEquals(21, (int) r);
234	>	checkCompletedNormally(f, r);
235		return r;
236	<	}
237	<	};
83	<	assertTrue(mainPool.invoke(a) == 21);
236	>	}};
237	>	assertEquals(21, (int) testInvokeOnPool(mainPool(), a));
238		}
239
240		/**
#	Line 89 | Line 243 | public class RecursiveTaskTest extends J
243		* completed tasks
244		*/
245		public void testQuietlyInvoke() {
246	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
247	<	public Integer compute() {
246	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
247	>	public Integer realCompute() {
248		FibTask f = new FibTask(8);
249		f.quietlyInvoke();
250	<	Integer r = f.getRawResult();
251	<	threadAssertTrue(r == 21);
252	<	threadAssertTrue(f.isDone());
253	<	threadAssertFalse(f.isCancelled());
100	<	threadAssertFalse(f.isCompletedAbnormally());
101	<	return r;
102	<	}
103	<	};
104	<	assertTrue(mainPool.invoke(a) == 21);
250	>	checkCompletedNormally(f, 21);
251	>	return NoResult;
252	>	}};
253	>	assertSame(NoResult, testInvokeOnPool(mainPool(), a));
254		}
255
256		/**
257		* join of a forked task returns when task completes
258		*/
259		public void testForkJoin() {
260	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
261	<	public Integer compute() {
260	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
261	>	public Integer realCompute() {
262		FibTask f = new FibTask(8);
263	<	f.fork();
263	>	assertSame(f, f.fork());
264		Integer r = f.join();
265	<	threadAssertTrue(r == 21);
266	<	threadAssertTrue(f.isDone());
265	>	assertEquals(21, (int) r);
266	>	checkCompletedNormally(f, r);
267		return r;
268	<	}
269	<	};
121	<	assertTrue(mainPool.invoke(a) == 21);
268	>	}};
269	>	assertEquals(21, (int) testInvokeOnPool(mainPool(), a));
270		}
271
272		/**
273		* get of a forked task returns when task completes
274		*/
275		public void testForkGet() {
276	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
277	<	public Integer compute() {
278	<	try {
279	<	FibTask f = new FibTask(8);
280	<	f.fork();
281	<	Integer r = f.get();
282	<	threadAssertTrue(r == 21);
283	<	threadAssertTrue(f.isDone());
284	<	return r;
285	<	} catch (Exception ex) {
138	<	unexpectedException(ex);
139	<	}
140	<	return NoResult;
141	<	}
142	<	};
143	<	assertTrue(mainPool.invoke(a) == 21);
276	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
277	>	public Integer realCompute() throws Exception {
278	>	FibTask f = new FibTask(8);
279	>	assertSame(f, f.fork());
280	>	Integer r = f.get();
281	>	assertEquals(21, (int) r);
282	>	checkCompletedNormally(f, r);
283	>	return r;
284	>	}};
285	>	assertEquals(21, (int) testInvokeOnPool(mainPool(), a));
286		}
287
288		/**
289		* timed get of a forked task returns when task completes
290		*/
291		public void testForkTimedGet() {
292	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
293	<	public Integer compute() {
152	<	try {
153	<	FibTask f = new FibTask(8);
154	<	f.fork();
155	<	Integer r = f.get(5L, TimeUnit.SECONDS);
156	<	threadAssertTrue(r == 21);
157	<	threadAssertTrue(f.isDone());
158	<	return r;
159	<	} catch (Exception ex) {
160	<	unexpectedException(ex);
161	<	}
162	<	return NoResult;
163	<	}
164	<	};
165	<	assertTrue(mainPool.invoke(a) == 21);
166	<	}
167	<
168	<	/**
169	<	* helpJoin of a forked task returns when task completes
170	<	*/
171	<	public void testForkHelpJoin() {
172	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
173	<	public Integer compute() {
292	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
293	>	public Integer realCompute() throws Exception {
294		FibTask f = new FibTask(8);
295	<	f.fork();
296	<	Integer r = f.helpJoin();
297	<	threadAssertTrue(r == 21);
298	<	threadAssertTrue(f.isDone());
295	>	assertSame(f, f.fork());
296	>	Integer r = f.get(5L, SECONDS);
297	>	assertEquals(21, (int) r);
298	>	checkCompletedNormally(f, r);
299		return r;
300	<	}
301	<	};
182	<	assertTrue(mainPool.invoke(a) == 21);
300	>	}};
301	>	assertEquals(21, (int) testInvokeOnPool(mainPool(), a));
302		}
303
304		/**
305		* quietlyJoin of a forked task returns when task completes
306		*/
307		public void testForkQuietlyJoin() {
308	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
309	<	public Integer compute() {
308	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
309	>	public Integer realCompute() {
310		FibTask f = new FibTask(8);
311	<	f.fork();
311	>	assertSame(f, f.fork());
312		f.quietlyJoin();
313		Integer r = f.getRawResult();
314	<	threadAssertTrue(r == 21);
315	<	threadAssertTrue(f.isDone());
314	>	assertEquals(21, (int) r);
315	>	checkCompletedNormally(f, r);
316		return r;
317	<	}
318	<	};
200	<	assertTrue(mainPool.invoke(a) == 21);
201	<	}
202	<
203	<
204	<	/**
205	<	* quietlyHelpJoin of a forked task returns when task completes
206	<	*/
207	<	public void testForkQuietlyHelpJoin() {
208	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
209	<	public Integer compute() {
210	<	FibTask f = new FibTask(8);
211	<	f.fork();
212	<	f.quietlyHelpJoin();
213	<	Integer r = f.getRawResult();
214	<	threadAssertTrue(r == 21);
215	<	threadAssertTrue(f.isDone());
216	<	return r;
217	<	}
218	<	};
219	<	assertTrue(mainPool.invoke(a) == 21);
317	>	}};
318	>	assertEquals(21, (int) testInvokeOnPool(mainPool(), a));
319		}
320
321
#	Line 225 | Line 324 | public class RecursiveTaskTest extends J
324		* getQueuedTaskCount returns 0 when quiescent
325		*/
326		public void testForkHelpQuiesce() {
327	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
328	<	public Integer compute() {
327	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
328	>	public Integer realCompute() {
329		FibTask f = new FibTask(8);
330	<	f.fork();
330	>	assertSame(f, f.fork());
331		f.helpQuiesce();
332	<	Integer r = f.getRawResult();
333	<	threadAssertTrue(r == 21);
334	<	threadAssertTrue(f.isDone());
335	<	threadAssertTrue(getQueuedTaskCount() == 0);
336	<	return r;
238	<	}
239	<	};
240	<	assertTrue(mainPool.invoke(a) == 21);
332	>	assertEquals(0, getQueuedTaskCount());
333	>	checkCompletedNormally(f, 21);
334	>	return NoResult;
335	>	}};
336	>	assertSame(NoResult, testInvokeOnPool(mainPool(), a));
337		}
338
339
#	Line 245 | Line 341 | public class RecursiveTaskTest extends J
341		* invoke task throws exception when task completes abnormally
342		*/
343		public void testAbnormalInvoke() {
344	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
345	<	public Integer compute() {
344	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
345	>	public Integer realCompute() {
346	>	FailingFibTask f = new FailingFibTask(8);
347		try {
251	–	FailingFibTask f = new FailingFibTask(8);
348		f.invoke();
349		shouldThrow();
254	–	return NoResult;
350		} catch (FJException success) {
351	+	checkCompletedAbnormally(f, success);
352		}
353		return NoResult;
354	<	}
355	<	};
260	<	mainPool.invoke(a);
354	>	}};
355	>	assertSame(NoResult, testInvokeOnPool(mainPool(), a));
356		}
357
358		/**
359		* quietlyInvoke task returns when task completes abnormally
360		*/
361		public void testAbnormalQuietlyInvoke() {
362	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
363	<	public Integer compute() {
362	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
363	>	public Integer realCompute() {
364		FailingFibTask f = new FailingFibTask(8);
365		f.quietlyInvoke();
366	<	threadAssertTrue(f.isDone());
366	>	assertTrue(f.getException() instanceof FJException);
367	>	checkCompletedAbnormally(f, f.getException());
368		return NoResult;
369	<	}
370	<	};
275	<	mainPool.invoke(a);
369	>	}};
370	>	assertSame(NoResult, testInvokeOnPool(mainPool(), a));
371		}
372
373		/**
374		* join of a forked task throws exception when task completes abnormally
375		*/
376		public void testAbnormalForkJoin() {
377	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
378	<	public Integer compute() {
377	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
378	>	public Integer realCompute() {
379	>	FailingFibTask f = new FailingFibTask(8);
380	>	assertSame(f, f.fork());
381		try {
285	–	FailingFibTask f = new FailingFibTask(8);
286	–	f.fork();
382		Integer r = f.join();
383		shouldThrow();
289	–	return r;
384		} catch (FJException success) {
385	+	checkCompletedAbnormally(f, success);
386		}
387		return NoResult;
388	<	}
389	<	};
295	<	mainPool.invoke(a);
388	>	}};
389	>	assertSame(NoResult, testInvokeOnPool(mainPool(), a));
390		}
391
392		/**
393		* get of a forked task throws exception when task completes abnormally
394		*/
395		public void testAbnormalForkGet() {
396	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
397	<	public Integer compute() {
396	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
397	>	public Integer realCompute() throws Exception {
398	>	FailingFibTask f = new FailingFibTask(8);
399	>	assertSame(f, f.fork());
400		try {
305	–	FailingFibTask f = new FailingFibTask(8);
306	–	f.fork();
401		Integer r = f.get();
402		shouldThrow();
309	–	return r;
403		} catch (ExecutionException success) {
404	<	} catch (Exception ex) {
405	<	unexpectedException(ex);
404	>	Throwable cause = success.getCause();
405	>	assertTrue(cause instanceof FJException);
406	>	checkCompletedAbnormally(f, cause);
407		}
408		return NoResult;
409	<	}
410	<	};
317	<	mainPool.invoke(a);
409	>	}};
410	>	assertSame(NoResult, testInvokeOnPool(mainPool(), a));
411		}
412
413		/**
414		* timed get of a forked task throws exception when task completes abnormally
415		*/
416		public void testAbnormalForkTimedGet() {
417	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
418	<	public Integer compute() {
417	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
418	>	public Integer realCompute() throws Exception {
419	>	FailingFibTask f = new FailingFibTask(8);
420	>	assertSame(f, f.fork());
421		try {
422	<	FailingFibTask f = new FailingFibTask(8);
328	<	f.fork();
329	<	Integer r = f.get(5L, TimeUnit.SECONDS);
422	>	Integer r = f.get(5L, SECONDS);
423		shouldThrow();
331	–	return r;
424		} catch (ExecutionException success) {
425	<	} catch (Exception ex) {
426	<	unexpectedException(ex);
425	>	Throwable cause = success.getCause();
426	>	assertTrue(cause instanceof FJException);
427	>	checkCompletedAbnormally(f, cause);
428		}
429		return NoResult;
430	<	}
431	<	};
339	<	mainPool.invoke(a);
340	<	}
341	<
342	<	/**
343	<	* join of a forked task throws exception when task completes abnormally
344	<	*/
345	<	public void testAbnormalForkHelpJoin() {
346	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
347	<	public Integer compute() {
348	<	try {
349	<	FailingFibTask f = new FailingFibTask(8);
350	<	f.fork();
351	<	Integer r = f.helpJoin();
352	<	shouldThrow();
353	<	return r;
354	<	} catch (FJException success) {
355	<	}
356	<	return NoResult;
357	<	}
358	<	};
359	<	mainPool.invoke(a);
360	<	}
361	<
362	<	/**
363	<	* quietlyHelpJoin of a forked task returns when task completes abnormally.
364	<	* getException of failed task returns its exception.
365	<	* isCompletedAbnormally of a failed task returns true.
366	<	* isCancelled of a failed uncancelled task returns false
367	<	*/
368	<	public void testAbnormalForkQuietlyHelpJoin() {
369	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
370	<	public Integer compute() {
371	<	FailingFibTask f = new FailingFibTask(8);
372	<	f.fork();
373	<	f.quietlyHelpJoin();
374	<	threadAssertTrue(f.isDone());
375	<	threadAssertTrue(f.isCompletedAbnormally());
376	<	threadAssertFalse(f.isCancelled());
377	<	threadAssertTrue(f.getException() instanceof FJException);
378	<	return NoResult;
379	<	}
380	<	};
381	<	mainPool.invoke(a);
430	>	}};
431	>	assertSame(NoResult, testInvokeOnPool(mainPool(), a));
432		}
433
434		/**
435		* quietlyJoin of a forked task returns when task completes abnormally
436		*/
437		public void testAbnormalForkQuietlyJoin() {
438	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
439	<	public Integer compute() {
438	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
439	>	public Integer realCompute() {
440		FailingFibTask f = new FailingFibTask(8);
441	<	f.fork();
441	>	assertSame(f, f.fork());
442		f.quietlyJoin();
443	<	threadAssertTrue(f.isDone());
444	<	threadAssertTrue(f.isCompletedAbnormally());
395	<	threadAssertTrue(f.getException() instanceof FJException);
443	>	assertTrue(f.getException() instanceof FJException);
444	>	checkCompletedAbnormally(f, f.getException());
445		return NoResult;
446	<	}
447	<	};
399	<	mainPool.invoke(a);
446	>	}};
447	>	assertSame(NoResult, testInvokeOnPool(mainPool(), a));
448		}
449
450		/**
451		* invoke task throws exception when task cancelled
452		*/
453		public void testCancelledInvoke() {
454	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
455	<	public Integer compute() {
454	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
455	>	public Integer realCompute() {
456	>	FibTask f = new FibTask(8);
457	>	assertTrue(f.cancel(true));
458		try {
409	–	FibTask f = new FibTask(8);
410	–	f.cancel(true);
459		Integer r = f.invoke();
460		shouldThrow();
413	–	return r;
461		} catch (CancellationException success) {
462	+	checkCancelled(f);
463		}
464		return NoResult;
465	<	}
466	<	};
419	<	mainPool.invoke(a);
465	>	}};
466	>	assertSame(NoResult, testInvokeOnPool(mainPool(), a));
467		}
468
469		/**
470		* join of a forked task throws exception when task cancelled
471		*/
472		public void testCancelledForkJoin() {
473	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
474	<	public Integer compute() {
473	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
474	>	public Integer realCompute() {
475	>	FibTask f = new FibTask(8);
476	>	assertTrue(f.cancel(true));
477	>	assertSame(f, f.fork());
478		try {
429	–	FibTask f = new FibTask(8);
430	–	f.cancel(true);
431	–	f.fork();
479		Integer r = f.join();
480		shouldThrow();
434	–	return r;
481		} catch (CancellationException success) {
482	+	checkCancelled(f);
483		}
484		return NoResult;
485	<	}
486	<	};
440	<	mainPool.invoke(a);
485	>	}};
486	>	assertSame(NoResult, testInvokeOnPool(mainPool(), a));
487		}
488
489		/**
490		* get of a forked task throws exception when task cancelled
491		*/
492		public void testCancelledForkGet() {
493	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
494	<	public Integer compute() {
493	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
494	>	public Integer realCompute() throws Exception {
495	>	FibTask f = new FibTask(8);
496	>	assertTrue(f.cancel(true));
497	>	assertSame(f, f.fork());
498		try {
450	–	FibTask f = new FibTask(8);
451	–	f.cancel(true);
452	–	f.fork();
499		Integer r = f.get();
500		shouldThrow();
455	–	return r;
501		} catch (CancellationException success) {
502	<	} catch (Exception ex) {
458	<	unexpectedException(ex);
502	>	checkCancelled(f);
503		}
504		return NoResult;
505	<	}
506	<	};
463	<	mainPool.invoke(a);
505	>	}};
506	>	assertSame(NoResult, testInvokeOnPool(mainPool(), a));
507		}
508
509		/**
510		* timed get of a forked task throws exception when task cancelled
511		*/
512		public void testCancelledForkTimedGet() {
513	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
514	<	public Integer compute() {
513	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
514	>	public Integer realCompute() throws Exception {
515	>	FibTask f = new FibTask(8);
516	>	assertTrue(f.cancel(true));
517	>	assertSame(f, f.fork());
518		try {
519	<	FibTask f = new FibTask(8);
474	<	f.cancel(true);
475	<	f.fork();
476	<	Integer r = f.get(5L, TimeUnit.SECONDS);
519	>	Integer r = f.get(5L, SECONDS);
520		shouldThrow();
478	–	return r;
521		} catch (CancellationException success) {
522	<	} catch (Exception ex) {
481	<	unexpectedException(ex);
522	>	checkCancelled(f);
523		}
524		return NoResult;
525	<	}
526	<	};
486	<	mainPool.invoke(a);
487	<	}
488	<
489	<	/**
490	<	* join of a forked task throws exception when task cancelled
491	<	*/
492	<	public void testCancelledForkHelpJoin() {
493	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
494	<	public Integer compute() {
495	<	try {
496	<	FibTask f = new FibTask(8);
497	<	f.cancel(true);
498	<	f.fork();
499	<	Integer r = f.helpJoin();
500	<	shouldThrow();
501	<	return r;
502	<	} catch (CancellationException success) {
503	<	}
504	<	return NoResult;
505	<	}
506	<	};
507	<	mainPool.invoke(a);
508	<	}
509	<
510	<	/**
511	<	* quietlyHelpJoin of a forked task returns when task cancelled.
512	<	* getException of cancelled task returns its exception
513	<	* isCompletedAbnormally of a cancelled task returns true.
514	<	* isCancelled of a cancelled task returns true
515	<	*/
516	<	public void testCancelledForkQuietlyHelpJoin() {
517	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
518	<	public Integer compute() {
519	<	FibTask f = new FibTask(8);
520	<	f.cancel(true);
521	<	f.fork();
522	<	f.quietlyHelpJoin();
523	<	threadAssertTrue(f.isDone());
524	<	threadAssertTrue(f.isCompletedAbnormally());
525	<	threadAssertTrue(f.isCancelled());
526	<	threadAssertTrue(f.getException() instanceof CancellationException);
527	<	return NoResult;
528	<	}
529	<	};
530	<	mainPool.invoke(a);
525	>	}};
526	>	assertSame(NoResult, testInvokeOnPool(mainPool(), a));
527		}
528
529		/**
530		* quietlyJoin of a forked task returns when task cancelled
531		*/
532		public void testCancelledForkQuietlyJoin() {
533	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
534	<	public Integer compute() {
533	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
534	>	public Integer realCompute() {
535		FibTask f = new FibTask(8);
536	<	f.cancel(true);
537	<	f.fork();
536	>	assertTrue(f.cancel(true));
537	>	assertSame(f, f.fork());
538		f.quietlyJoin();
539	<	threadAssertTrue(f.isDone());
544	<	threadAssertTrue(f.isCompletedAbnormally());
545	<	threadAssertTrue(f.getException() instanceof CancellationException);
539	>	checkCancelled(f);
540		return NoResult;
541	<	}
542	<	};
549	<	mainPool.invoke(a);
541	>	}};
542	>	assertSame(NoResult, testInvokeOnPool(mainPool(), a));
543		}
544
545		/**
546		* getPool of executing task returns its pool
547		*/
548		public void testGetPool() {
549	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
550	<	public Integer compute() {
551	<	threadAssertTrue(getPool() == mainPool);
549	>	final ForkJoinPool mainPool = mainPool();
550	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
551	>	public Integer realCompute() {
552	>	assertSame(mainPool, getPool());
553		return NoResult;
554	<	}
555	<	};
562	<	mainPool.invoke(a);
554	>	}};
555	>	assertSame(NoResult, testInvokeOnPool(mainPool, a));
556		}
557
558		/**
559		* getPool of non-FJ task returns null
560		*/
561		public void testGetPool2() {
562	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
563	<	public Integer compute() {
564	<	threadAssertTrue(getPool() == null);
562	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
563	>	public Integer realCompute() {
564	>	assertNull(getPool());
565		return NoResult;
566	<	}
567	<	};
575	<	a.invoke();
566	>	}};
567	>	assertSame(NoResult, a.invoke());
568		}
569
570		/**
571		* inForkJoinPool of executing task returns true
572		*/
573		public void testInForkJoinPool() {
574	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
575	<	public Integer compute() {
576	<	threadAssertTrue(inForkJoinPool());
574	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
575	>	public Integer realCompute() {
576	>	assertTrue(inForkJoinPool());
577		return NoResult;
578	<	}
579	<	};
588	<	mainPool.invoke(a);
578	>	}};
579	>	assertSame(NoResult, testInvokeOnPool(mainPool(), a));
580		}
581
582		/**
583		* inForkJoinPool of non-FJ task returns false
584		*/
585		public void testInForkJoinPool2() {
586	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
587	<	public Integer compute() {
588	<	threadAssertTrue(!inForkJoinPool());
586	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
587	>	public Integer realCompute() {
588	>	assertFalse(inForkJoinPool());
589		return NoResult;
590	<	}
591	<	};
601	<	a.invoke();
590	>	}};
591	>	assertSame(NoResult, a.invoke());
592		}
593
594		/**
595	<	* setRawResult(null) succeeds
595	>	* The value set by setRawResult is returned by getRawResult
596		*/
597		public void testSetRawResult() {
598	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
599	<	public Integer compute() {
598	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
599	>	public Integer realCompute() {
600		setRawResult(NoResult);
601	+	assertSame(NoResult, getRawResult());
602		return NoResult;
603		}
604		};
605	<	assertEquals(a.invoke(), NoResult);
605	>	a.invoke();
606		}
607
608		/**
609	<	* A reinitialized task may be re-invoked
609	>	* A reinitialized normally completed task may be re-invoked
610		*/
611		public void testReinitialize() {
612	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
613	<	public Integer compute() {
612	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
613	>	public Integer realCompute() {
614		FibTask f = new FibTask(8);
615	<	Integer r = f.invoke();
616	<	threadAssertTrue(r == 21);
617	<	threadAssertTrue(f.isDone());
618	<	threadAssertFalse(f.isCancelled());
619	<	threadAssertFalse(f.isCompletedAbnormally());
620	<	f.reinitialize();
621	<	r = f.invoke();
622	<	threadAssertTrue(r == 21);
615	>	checkNotDone(f);
616	>
617	>	for (int i = 0; i < 3; i++) {
618	>	Integer r = f.invoke();
619	>	assertEquals(21, (int) r);
620	>	checkCompletedNormally(f, r);
621	>	f.reinitialize();
622	>	f.publicSetRawResult(null);
623	>	checkNotDone(f);
624	>	}
625		return NoResult;
626	<	}
627	<	};
628	<	mainPool.invoke(a);
626	>	}};
627	>	assertSame(NoResult, testInvokeOnPool(mainPool(), a));
628	>	}
629	>
630	>	/**
631	>	* A reinitialized abnormally completed task may be re-invoked
632	>	*/
633	>	public void testReinitializeAbnormal() {
634	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
635	>	public Integer realCompute() {
636	>	FailingFibTask f = new FailingFibTask(8);
637	>	checkNotDone(f);
638	>
639	>	for (int i = 0; i < 3; i++) {
640	>	try {
641	>	f.invoke();
642	>	shouldThrow();
643	>	} catch (FJException success) {
644	>	checkCompletedAbnormally(f, success);
645	>	}
646	>	f.reinitialize();
647	>	checkNotDone(f);
648	>	}
649	>	return NoResult;
650	>	}};
651	>	assertSame(NoResult, testInvokeOnPool(mainPool(), a));
652		}
653
654		/**
655		* invoke task throws exception after invoking completeExceptionally
656		*/
657		public void testCompleteExceptionally() {
658	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
659	<	public Integer compute() {
658	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
659	>	public Integer realCompute() {
660	>	FibTask f = new FibTask(8);
661	>	f.completeExceptionally(new FJException());
662		try {
645	–	FibTask f = new FibTask(8);
646	–	f.completeExceptionally(new FJException());
663		Integer r = f.invoke();
664		shouldThrow();
649	–	return r;
665		} catch (FJException success) {
666	+	checkCompletedAbnormally(f, success);
667		}
668		return NoResult;
669	<	}
670	<	};
655	<	mainPool.invoke(a);
669	>	}};
670	>	assertSame(NoResult, testInvokeOnPool(mainPool(), a));
671		}
672
673		/**
674		* invoke task suppresses execution invoking complete
675		*/
676		public void testComplete() {
677	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
678	<	public Integer compute() {
677	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
678	>	public Integer realCompute() {
679		FibTask f = new FibTask(8);
680		f.complete(NoResult);
681		Integer r = f.invoke();
682	<	threadAssertTrue(f.isDone());
683	<	threadAssertTrue(r == NoResult);
682	>	assertSame(NoResult, r);
683	>	checkCompletedNormally(f, NoResult);
684		return r;
685	<	}
686	<	};
672	<	mainPool.invoke(a);
685	>	}};
686	>	assertSame(NoResult, testInvokeOnPool(mainPool(), a));
687		}
688
689		/**
690		* invokeAll(t1, t2) invokes all task arguments
691		*/
692		public void testInvokeAll2() {
693	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
694	<	public Integer compute() {
693	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
694	>	public Integer realCompute() {
695		FibTask f = new FibTask(8);
696		FibTask g = new FibTask(9);
697		invokeAll(f, g);
698	<	threadAssertTrue(f.isDone());
699	<	threadAssertTrue(f.join() == 21);
686	<	threadAssertTrue(g.isDone());
687	<	threadAssertTrue(g.join() == 34);
698	>	checkCompletedNormally(f, 21);
699	>	checkCompletedNormally(g, 34);
700		return NoResult;
701	<	}
702	<	};
691	<	mainPool.invoke(a);
701	>	}};
702	>	assertSame(NoResult, testInvokeOnPool(mainPool(), a));
703		}
704
705		/**
706		* invokeAll(tasks) with 1 argument invokes task
707		*/
708		public void testInvokeAll1() {
709	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
710	<	public Integer compute() {
709	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
710	>	public Integer realCompute() {
711		FibTask f = new FibTask(8);
712		invokeAll(f);
713	<	threadAssertTrue(f.isDone());
703	<	threadAssertTrue(f.join() == 21);
713	>	checkCompletedNormally(f, 21);
714		return NoResult;
715	<	}
716	<	};
707	<	mainPool.invoke(a);
715	>	}};
716	>	assertSame(NoResult, testInvokeOnPool(mainPool(), a));
717		}
718
719		/**
720		* invokeAll(tasks) with > 2 argument invokes tasks
721		*/
722		public void testInvokeAll3() {
723	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
724	<	public Integer compute() {
723	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
724	>	public Integer realCompute() {
725		FibTask f = new FibTask(8);
726		FibTask g = new FibTask(9);
727		FibTask h = new FibTask(7);
728		invokeAll(f, g, h);
729	<	threadAssertTrue(f.isDone());
730	<	threadAssertTrue(f.join() == 21);
731	<	threadAssertTrue(g.isDone());
732	<	threadAssertTrue(g.join() == 34);
733	<	threadAssertTrue(h.isDone());
734	<	threadAssertTrue(h.join() == 13);
729	>	assertTrue(f.isDone());
730	>	assertTrue(g.isDone());
731	>	assertTrue(h.isDone());
732	>	checkCompletedNormally(f, 21);
733	>	checkCompletedNormally(g, 34);
734	>	checkCompletedNormally(h, 13);
735		return NoResult;
736	<	}
737	<	};
729	<	mainPool.invoke(a);
736	>	}};
737	>	assertSame(NoResult, testInvokeOnPool(mainPool(), a));
738		}
739
740		/**
741		* invokeAll(collection) invokes all tasks in the collection
742		*/
743		public void testInvokeAllCollection() {
744	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
745	<	public Integer compute() {
744	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
745	>	public Integer realCompute() {
746		FibTask f = new FibTask(8);
747		FibTask g = new FibTask(9);
748		FibTask h = new FibTask(7);
#	Line 743 | Line 751 | public class RecursiveTaskTest extends J
751		set.add(g);
752		set.add(h);
753		invokeAll(set);
754	<	threadAssertTrue(f.isDone());
755	<	threadAssertTrue(f.join() == 21);
756	<	threadAssertTrue(g.isDone());
757	<	threadAssertTrue(g.join() == 34);
758	<	threadAssertTrue(h.isDone());
759	<	threadAssertTrue(h.join() == 13);
754	>	assertTrue(f.isDone());
755	>	assertTrue(g.isDone());
756	>	assertTrue(h.isDone());
757	>	checkCompletedNormally(f, 21);
758	>	checkCompletedNormally(g, 34);
759	>	checkCompletedNormally(h, 13);
760		return NoResult;
761	<	}
762	<	};
755	<	mainPool.invoke(a);
761	>	}};
762	>	assertSame(NoResult, testInvokeOnPool(mainPool(), a));
763		}
764
765
766		/**
767	+	* invokeAll(tasks) with any null task throws NPE
768	+	*/
769	+	public void testInvokeAllNPE() {
770	+	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
771	+	public Integer realCompute() {
772	+	FibTask f = new FibTask(8);
773	+	FibTask g = new FibTask(9);
774	+	FibTask h = null;
775	+	try {
776	+	invokeAll(f, g, h);
777	+	shouldThrow();
778	+	} catch (NullPointerException success) {}
779	+	return NoResult;
780	+	}};
781	+	assertSame(NoResult, testInvokeOnPool(mainPool(), a));
782	+	}
783	+
784	+	/**
785		* invokeAll(t1, t2) throw exception if any task does
786		*/
787		public void testAbnormalInvokeAll2() {
788	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
789	<	public Integer compute() {
788	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
789	>	public Integer realCompute() {
790	>	FibTask f = new FibTask(8);
791	>	FailingFibTask g = new FailingFibTask(9);
792		try {
766	–	FibTask f = new FibTask(8);
767	–	FailingFibTask g = new FailingFibTask(9);
793		invokeAll(f, g);
794		shouldThrow();
770	–	return NoResult;
795		} catch (FJException success) {
796	+	checkCompletedAbnormally(g, success);
797		}
798		return NoResult;
799	<	}
800	<	};
776	<	mainPool.invoke(a);
799	>	}};
800	>	assertSame(NoResult, testInvokeOnPool(mainPool(), a));
801		}
802
803		/**
804		* invokeAll(tasks) with 1 argument throws exception if task does
805		*/
806		public void testAbnormalInvokeAll1() {
807	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
808	<	public Integer compute() {
807	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
808	>	public Integer realCompute() {
809	>	FailingFibTask g = new FailingFibTask(9);
810		try {
786	–	FailingFibTask g = new FailingFibTask(9);
811		invokeAll(g);
812		shouldThrow();
789	–	return NoResult;
813		} catch (FJException success) {
814	+	checkCompletedAbnormally(g, success);
815		}
816		return NoResult;
817	<	}
818	<	};
795	<	mainPool.invoke(a);
817	>	}};
818	>	assertSame(NoResult, testInvokeOnPool(mainPool(), a));
819		}
820
821		/**
822		* invokeAll(tasks) with > 2 argument throws exception if any task does
823		*/
824		public void testAbnormalInvokeAll3() {
825	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
826	<	public Integer compute() {
825	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
826	>	public Integer realCompute() {
827	>	FibTask f = new FibTask(8);
828	>	FailingFibTask g = new FailingFibTask(9);
829	>	FibTask h = new FibTask(7);
830		try {
805	–	FibTask f = new FibTask(8);
806	–	FailingFibTask g = new FailingFibTask(9);
807	–	FibTask h = new FibTask(7);
831		invokeAll(f, g, h);
832		shouldThrow();
810	–	return NoResult;
833		} catch (FJException success) {
834	+	checkCompletedAbnormally(g, success);
835		}
836		return NoResult;
837	<	}
838	<	};
816	<	mainPool.invoke(a);
837	>	}};
838	>	assertSame(NoResult, testInvokeOnPool(mainPool(), a));
839		}
840
841		/**
842		* invokeAll(collection) throws exception if any task does
843		*/
844		public void testAbnormalInvokeAllCollection() {
845	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
846	<	public Integer compute() {
845	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
846	>	public Integer realCompute() {
847	>	FailingFibTask f = new FailingFibTask(8);
848	>	FibTask g = new FibTask(9);
849	>	FibTask h = new FibTask(7);
850	>	HashSet set = new HashSet();
851	>	set.add(f);
852	>	set.add(g);
853	>	set.add(h);
854		try {
826	–	FailingFibTask f = new FailingFibTask(8);
827	–	FibTask g = new FibTask(9);
828	–	FibTask h = new FibTask(7);
829	–	HashSet set = new HashSet();
830	–	set.add(f);
831	–	set.add(g);
832	–	set.add(h);
855		invokeAll(set);
856		shouldThrow();
835	–	return NoResult;
857		} catch (FJException success) {
858	+	checkCompletedAbnormally(f, success);
859		}
860		return NoResult;
861	<	}
862	<	};
841	<	mainPool.invoke(a);
861	>	}};
862	>	assertSame(NoResult, testInvokeOnPool(mainPool(), a));
863		}
864
865		/**
#	Line 846 | Line 867 | public class RecursiveTaskTest extends J
867		* and suppresses execution
868		*/
869		public void testTryUnfork() {
870	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
871	<	public Integer compute() {
870	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
871	>	public Integer realCompute() {
872		FibTask g = new FibTask(9);
873	<	g.fork();
873	>	assertSame(g, g.fork());
874		FibTask f = new FibTask(8);
875	<	f.fork();
876	<	threadAssertTrue(f.tryUnfork());
875	>	assertSame(f, f.fork());
876	>	assertTrue(f.tryUnfork());
877		helpQuiesce();
878	<	threadAssertFalse(f.isDone());
879	<	threadAssertTrue(g.isDone());
878	>	checkNotDone(f);
879	>	checkCompletedNormally(g, 34);
880		return NoResult;
881	<	}
882	<	};
862	<	singletonPool.invoke(a);
881	>	}};
882	>	assertSame(NoResult, testInvokeOnPool(singletonPool(), a));
883		}
884
885		/**
#	Line 867 | Line 887 | public class RecursiveTaskTest extends J
887		* there are more tasks than threads
888		*/
889		public void testGetSurplusQueuedTaskCount() {
890	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
891	<	public Integer compute() {
890	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
891	>	public Integer realCompute() {
892		FibTask h = new FibTask(7);
893	<	h.fork();
893	>	assertSame(h, h.fork());
894		FibTask g = new FibTask(9);
895	<	g.fork();
895	>	assertSame(g, g.fork());
896		FibTask f = new FibTask(8);
897	<	f.fork();
898	<	threadAssertTrue(getSurplusQueuedTaskCount() > 0);
897	>	assertSame(f, f.fork());
898	>	assertTrue(getSurplusQueuedTaskCount() > 0);
899		helpQuiesce();
900	+	assertEquals(0, getSurplusQueuedTaskCount());
901	+	checkCompletedNormally(f, 21);
902	+	checkCompletedNormally(g, 34);
903	+	checkCompletedNormally(h, 13);
904		return NoResult;
905	<	}
906	<	};
883	<	singletonPool.invoke(a);
905	>	}};
906	>	assertSame(NoResult, testInvokeOnPool(singletonPool(), a));
907		}
908
909		/**
910		* peekNextLocalTask returns most recent unexecuted task.
911		*/
912		public void testPeekNextLocalTask() {
913	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
914	<	public Integer compute() {
913	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
914	>	public Integer realCompute() {
915		FibTask g = new FibTask(9);
916	<	g.fork();
916	>	assertSame(g, g.fork());
917		FibTask f = new FibTask(8);
918	<	f.fork();
919	<	threadAssertTrue(peekNextLocalTask() == f);
920	<	f.join();
898	<	threadAssertTrue(f.isDone());
918	>	assertSame(f, f.fork());
919	>	assertSame(f, peekNextLocalTask());
920	>	checkCompletesNormally(f, 21);
921		helpQuiesce();
922	+	checkCompletedNormally(g, 34);
923		return NoResult;
924	<	}
925	<	};
903	<	singletonPool.invoke(a);
924	>	}};
925	>	assertSame(NoResult, testInvokeOnPool(singletonPool(), a));
926		}
927
928		/**
#	Line 908 | Line 930 | public class RecursiveTaskTest extends J
930		* without executing it
931		*/
932		public void testPollNextLocalTask() {
933	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
934	<	public Integer compute() {
933	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
934	>	public Integer realCompute() {
935		FibTask g = new FibTask(9);
936	<	g.fork();
936	>	assertSame(g, g.fork());
937		FibTask f = new FibTask(8);
938	<	f.fork();
939	<	threadAssertTrue(pollNextLocalTask() == f);
938	>	assertSame(f, f.fork());
939	>	assertSame(f, pollNextLocalTask());
940		helpQuiesce();
941	<	threadAssertFalse(f.isDone());
941	>	checkNotDone(f);
942	>	checkCompletedNormally(g, 34);
943		return NoResult;
944	<	}
945	<	};
923	<	singletonPool.invoke(a);
944	>	}};
945	>	assertSame(NoResult, testInvokeOnPool(singletonPool(), a));
946		}
947
948		/**
949	<	* pollTask returns an unexecuted task
928	<	* without executing it
949	>	* pollTask returns an unexecuted task without executing it
950		*/
951		public void testPollTask() {
952	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
953	<	public Integer compute() {
952	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
953	>	public Integer realCompute() {
954		FibTask g = new FibTask(9);
955	<	g.fork();
955	>	assertSame(g, g.fork());
956		FibTask f = new FibTask(8);
957	<	f.fork();
958	<	threadAssertTrue(pollTask() == f);
957	>	assertSame(f, f.fork());
958	>	assertSame(f, pollTask());
959		helpQuiesce();
960	<	threadAssertFalse(f.isDone());
961	<	threadAssertTrue(g.isDone());
960	>	checkNotDone(f);
961	>	checkCompletedNormally(g, 34);
962		return NoResult;
963	<	}
964	<	};
944	<	singletonPool.invoke(a);
963	>	}};
964	>	assertSame(NoResult, testInvokeOnPool(singletonPool(), a));
965		}
966
967		/**
968		* peekNextLocalTask returns least recent unexecuted task in async mode
969		*/
970		public void testPeekNextLocalTaskAsync() {
971	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
972	<	public Integer compute() {
971	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
972	>	public Integer realCompute() {
973		FibTask g = new FibTask(9);
974	<	g.fork();
974	>	assertSame(g, g.fork());
975		FibTask f = new FibTask(8);
976	<	f.fork();
977	<	threadAssertTrue(peekNextLocalTask() == g);
978	<	f.join();
976	>	assertSame(f, f.fork());
977	>	assertSame(g, peekNextLocalTask());
978	>	assertEquals(21, (int) f.join());
979		helpQuiesce();
980	<	threadAssertTrue(f.isDone());
980	>	checkCompletedNormally(f, 21);
981	>	checkCompletedNormally(g, 34);
982		return NoResult;
983	<	}
984	<	};
964	<	asyncSingletonPool.invoke(a);
983	>	}};
984	>	assertSame(NoResult, testInvokeOnPool(asyncSingletonPool(), a));
985		}
986
987		/**
988	<	* pollNextLocalTask returns least recent unexecuted task
989	<	* without executing it, in async mode
988	>	* pollNextLocalTask returns least recent unexecuted task without
989	>	* executing it, in async mode
990		*/
991		public void testPollNextLocalTaskAsync() {
992	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
993	<	public Integer compute() {
992	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
993	>	public Integer realCompute() {
994		FibTask g = new FibTask(9);
995	<	g.fork();
995	>	assertSame(g, g.fork());
996		FibTask f = new FibTask(8);
997	<	f.fork();
998	<	threadAssertTrue(pollNextLocalTask() == g);
997	>	assertSame(f, f.fork());
998	>	assertSame(g, pollNextLocalTask());
999		helpQuiesce();
1000	<	threadAssertTrue(f.isDone());
1001	<	threadAssertFalse(g.isDone());
1000	>	checkCompletedNormally(f, 21);
1001	>	checkNotDone(g);
1002		return NoResult;
1003	<	}
1004	<	};
985	<	asyncSingletonPool.invoke(a);
1003	>	}};
1004	>	assertSame(NoResult, testInvokeOnPool(asyncSingletonPool(), a));
1005		}
1006
1007		/**
1008	<	* pollTask returns an unexecuted task
1009	<	* without executing it, in async mode
1008	>	* pollTask returns an unexecuted task without executing it, in
1009	>	* async mode
1010		*/
1011		public void testPollTaskAsync() {
1012	<	RecursiveTask<Integer> a = new RecursiveTask<Integer>() {
1013	<	public Integer compute() {
1012	>	RecursiveTask<Integer> a = new CheckedRecursiveTask<Integer>() {
1013	>	public Integer realCompute() {
1014		FibTask g = new FibTask(9);
1015	<	g.fork();
1015	>	assertSame(g, g.fork());
1016		FibTask f = new FibTask(8);
1017	<	f.fork();
1018	<	threadAssertTrue(pollTask() == g);
1017	>	assertSame(f, f.fork());
1018	>	assertSame(g, pollTask());
1019		helpQuiesce();
1020	<	threadAssertTrue(f.isDone());
1021	<	threadAssertFalse(g.isDone());
1020	>	checkCompletedNormally(f, 21);
1021	>	checkNotDone(g);
1022		return NoResult;
1023	<	}
1024	<	};
1006	<	asyncSingletonPool.invoke(a);
1023	>	}};
1024	>	assertSame(NoResult, testInvokeOnPool(asyncSingletonPool(), a));
1025		}
1026
1027		}

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