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

Comparing jsr166/src/test/tck/ForkJoinPoolTest.java (file contents):
Revision 1.8 by jsr166, Tue Aug 4 21:10:19 2009 UTC vs.
Revision 1.44 by dl, Tue Jan 10 13:48:27 2012 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
7	–
7		import junit.framework.*;
8	<	import java.util.*;
9	<	import java.util.concurrent.*;
8	>	import java.util.ArrayList;
9	>	import java.util.Collection;
10	>	import java.util.List;
11	>	import java.util.concurrent.Executors;
12	>	import java.util.concurrent.ExecutorService;
13	>	import java.util.concurrent.AbstractExecutorService;
14	>	import java.util.concurrent.CountDownLatch;
15	>	import java.util.concurrent.Callable;
16	>	import java.util.concurrent.Future;
17	>	import java.util.concurrent.ExecutionException;
18	>	import java.util.concurrent.CancellationException;
19	>	import java.util.concurrent.RejectedExecutionException;
20	>	import java.util.concurrent.ForkJoinPool;
21	>	import java.util.concurrent.ForkJoinTask;
22	>	import java.util.concurrent.ForkJoinWorkerThread;
23	>	import java.util.concurrent.RecursiveTask;
24	>	import java.util.concurrent.TimeUnit;
25	>	import java.util.concurrent.atomic.AtomicBoolean;
26	>	import java.util.concurrent.locks.ReentrantLock;
27		import static java.util.concurrent.TimeUnit.MILLISECONDS;
28	<	import java.util.concurrent.locks.*;
29	<	import java.security.*;
28	>	import java.security.AccessControlException;
29	>	import java.security.Policy;
30	>	import java.security.PrivilegedAction;
31	>	import java.security.PrivilegedExceptionAction;
32
33		public class ForkJoinPoolTest extends JSR166TestCase {
34		public static void main(String[] args) {
35	<	junit.textui.TestRunner.run (suite());
35	>	junit.textui.TestRunner.run(suite());
36		}
37	+
38		public static Test suite() {
39		return new TestSuite(ForkJoinPoolTest.class);
40		}
#	Line 39 | Line 58 | public class ForkJoinPoolTest extends JS
58		// Some classes to test extension and factory methods
59
60		static class MyHandler implements Thread.UncaughtExceptionHandler {
61	<	int catches = 0;
61	>	volatile int catches = 0;
62		public void uncaughtException(Thread t, Throwable e) {
63		++catches;
64		}
#	Line 48 | Line 67 | public class ForkJoinPoolTest extends JS
67		// to test handlers
68		static class FailingFJWSubclass extends ForkJoinWorkerThread {
69		public FailingFJWSubclass(ForkJoinPool p) { super(p) ; }
70	<	protected void onStart() { throw new Error(); }
70	>	protected void onStart() { super.onStart(); throw new Error(); }
71		}
72
73		static class FailingThreadFactory
74		implements ForkJoinPool.ForkJoinWorkerThreadFactory {
75	<	int calls = 0;
75	>	volatile int calls = 0;
76		public ForkJoinWorkerThread newThread(ForkJoinPool p) {
77		if (++calls > 1) return null;
78		return new FailingFJWSubclass(p);
#	Line 142 | Line 161 | public class ForkJoinPoolTest extends JS
161		* tasks, and quiescent running state.
162		*/
163		public void testDefaultInitialState() {
164	<	ForkJoinPool p = null;
164	>	ForkJoinPool p = new ForkJoinPool(1);
165		try {
166	<	p = new ForkJoinPool(1);
167	<	assertTrue(p.getFactory() ==
149	<	ForkJoinPool.defaultForkJoinWorkerThreadFactory);
150	<	assertTrue(p.isQuiescent());
151	<	assertTrue(p.getMaintainsParallelism());
166	>	assertSame(ForkJoinPool.defaultForkJoinWorkerThreadFactory,
167	>	p.getFactory());
168		assertFalse(p.getAsyncMode());
169	<	assertTrue(p.getActiveThreadCount() == 0);
170	<	assertTrue(p.getStealCount() == 0);
171	<	assertTrue(p.getQueuedTaskCount() == 0);
172	<	assertTrue(p.getQueuedSubmissionCount() == 0);
169	>	assertEquals(0, p.getActiveThreadCount());
170	>	assertEquals(0, p.getStealCount());
171	>	assertEquals(0, p.getQueuedTaskCount());
172	>	assertEquals(0, p.getQueuedSubmissionCount());
173		assertFalse(p.hasQueuedSubmissions());
174		assertFalse(p.isShutdown());
175		assertFalse(p.isTerminating());
#	Line 170 | Line 186 | public class ForkJoinPoolTest extends JS
186		try {
187		new ForkJoinPool(-1);
188		shouldThrow();
189	<	}
174	<	catch (IllegalArgumentException success) {}
189	>	} catch (IllegalArgumentException success) {}
190		}
191
192		/**
#	Line 179 | Line 194 | public class ForkJoinPoolTest extends JS
194		*/
195		public void testConstructor2() {
196		try {
197	<	new ForkJoinPool(1, null);
197	>	new ForkJoinPool(1, null, null, false);
198		shouldThrow();
199	<	} catch (NullPointerException success) {
185	<	}
199	>	} catch (NullPointerException success) {}
200		}
201
188	–
202		/**
203		* getParallelism returns size set in constructor
204		*/
205		public void testGetParallelism() {
206	<	ForkJoinPool p = null;
194	<	try {
195	<	p = new ForkJoinPool(1);
196	<	assertTrue(p.getParallelism() == 1);
197	<	} finally {
198	<	joinPool(p);
199	<	}
200	<	}
201	<
202	<	/**
203	<	* setParallelism changes reported parallelism level.
204	<	*/
205	<	public void testSetParallelism() {
206	<	ForkJoinPool p = null;
207	<	try {
208	<	p = new ForkJoinPool(1);
209	<	assertTrue(p.getParallelism() == 1);
210	<	p.setParallelism(2);
211	<	assertTrue(p.getParallelism() == 2);
212	<	} finally {
213	<	joinPool(p);
214	<	}
215	<	}
216	<
217	<	/**
218	<	* setParallelism with argument <= 0 throws exception
219	<	*/
220	<	public void testSetParallelism2() {
221	<	ForkJoinPool p = null;
206	>	ForkJoinPool p = new ForkJoinPool(1);
207		try {
208	<	p = new ForkJoinPool(1);
224	<	assertTrue(p.getParallelism() == 1);
225	<	p.setParallelism(-2);
226	<	shouldThrow();
227	<	} catch (IllegalArgumentException success) {
208	>	assertEquals(1, p.getParallelism());
209		} finally {
210		joinPool(p);
211		}
#	Line 234 | Line 215 | public class ForkJoinPoolTest extends JS
215		* getPoolSize returns number of started workers.
216		*/
217		public void testGetPoolSize() {
218	<	ForkJoinPool p = null;
218	>	ForkJoinPool p = new ForkJoinPool(1);
219		try {
220	<	p = new ForkJoinPool(1);
240	<	assertTrue(p.getPoolSize() == 0);
220	>	assertEquals(0, p.getActiveThreadCount());
221		Future<String> future = p.submit(new StringTask());
222	<	assertTrue(p.getPoolSize() == 1);
243	<
244	<	} finally {
245	<	joinPool(p);
246	<	}
247	<	}
248	<
249	<	/**
250	<	* setMaximumPoolSize changes size reported by getMaximumPoolSize.
251	<	*/
252	<	public void testSetMaximumPoolSize() {
253	<	ForkJoinPool p = null;
254	<	try {
255	<	p = new ForkJoinPool(1);
256	<	p.setMaximumPoolSize(2);
257	<	assertTrue(p.getMaximumPoolSize() == 2);
258	<	} finally {
259	<	joinPool(p);
260	<	}
261	<	}
262	<
263	<	/**
264	<	* setMaximumPoolSize with argument <= 0 throws exception
265	<	*/
266	<	public void testSetMaximumPoolSize2() {
267	<	ForkJoinPool p = null;
268	<	try {
269	<	p = new ForkJoinPool(1);
270	<	p.setMaximumPoolSize(-2);
271	<	shouldThrow();
272	<	} catch (IllegalArgumentException success) {
273	<	} finally {
274	<	joinPool(p);
275	<	}
276	<	}
277	<
278	<	/**
279	<	* setMaintainsParallelism changes policy reported by
280	<	* getMaintainsParallelism.
281	<	*/
282	<	public void testSetMaintainsParallelism() {
283	<	ForkJoinPool p = null;
284	<	try {
285	<	p = new ForkJoinPool(1);
286	<	p.setMaintainsParallelism(false);
287	<	assertFalse(p.getMaintainsParallelism());
288	<	} finally {
289	<	joinPool(p);
290	<	}
291	<	}
292	<
293	<	/**
294	<	* setAsyncMode changes policy reported by
295	<	* getAsyncMode.
296	<	*/
297	<	public void testSetAsyncMode() {
298	<	ForkJoinPool p = null;
299	<	try {
300	<	p = new ForkJoinPool(1);
301	<	p.setAsyncMode(true);
302	<	assertTrue(p.getAsyncMode());
222	>	assertEquals(1, p.getPoolSize());
223		} finally {
224		joinPool(p);
225		}
#	Line 312 | Line 232 | public class ForkJoinPoolTest extends JS
232		* performs its defined action
233		*/
234		public void testSetUncaughtExceptionHandler() throws InterruptedException {
235	<	ForkJoinPool p = null;
236	<	try {
237	<	p = new ForkJoinPool(1, new FailingThreadFactory());
238	<	MyHandler eh = new MyHandler();
239	<	p.setUncaughtExceptionHandler(eh);
240	<	assertEquals(eh, p.getUncaughtExceptionHandler());
241	<	p.execute(new FailingTask());
242	<	Thread.sleep(MEDIUM_DELAY_MS);
243	<	assertTrue(eh.catches > 0);
235	>	final CountDownLatch uehInvoked = new CountDownLatch(1);
236	>	final Thread.UncaughtExceptionHandler eh =
237	>	new Thread.UncaughtExceptionHandler() {
238	>	public void uncaughtException(Thread t, Throwable e) {
239	>	uehInvoked.countDown();
240	>	}};
241	>	ForkJoinPool p = new ForkJoinPool(1, new FailingThreadFactory(),
242	>	eh, false);
243	>	try {
244	>	assertSame(eh, p.getUncaughtExceptionHandler());
245	>	try {
246	>	p.execute(new FibTask(8));
247	>	assertTrue(uehInvoked.await(10000, MILLISECONDS));
248	>	} catch(RejectedExecutionException ok) {
249	>	}
250		} finally {
251	+	p.shutdownNow(); // failure might have prevented processing task
252		joinPool(p);
253		}
254		}
255
256		/**
257	<	* setUncaughtExceptionHandler of null removes handler
257	>	* After invoking a single task, isQuiescent eventually becomes
258	>	* true, at which time queues are empty, threads are not active,
259	>	* the task has completed successfully, and construction
260	>	* parameters continue to hold
261		*/
262	<	public void testSetUncaughtExceptionHandler2() {
263	<	ForkJoinPool p = null;
262	>	public void testIsQuiescent() throws Exception {
263	>	ForkJoinPool p = new ForkJoinPool(2);
264		try {
265	<	p = new ForkJoinPool(1);
266	<	p.setUncaughtExceptionHandler(null);
267	<	assertNull(p.getUncaughtExceptionHandler());
268	<	} finally {
269	<	joinPool(p);
270	<	}
271	<	}
272	<
265	>	assertTrue(p.isQuiescent());
266	>	long startTime = System.nanoTime();
267	>	FibTask f = new FibTask(20);
268	>	p.invoke(f);
269	>	assertSame(ForkJoinPool.defaultForkJoinWorkerThreadFactory,
270	>	p.getFactory());
271	>	while (! p.isQuiescent()) {
272	>	if (millisElapsedSince(startTime) > LONG_DELAY_MS)
273	>	throw new AssertionFailedError("timed out");
274	>	assertFalse(p.getAsyncMode());
275	>	assertFalse(p.isShutdown());
276	>	assertFalse(p.isTerminating());
277	>	assertFalse(p.isTerminated());
278	>	Thread.yield();
279	>	}
280
344	–	/**
345	–	* After invoking a single task, isQuiescent is true,
346	–	* queues are empty, threads are not active, and
347	–	* construction parameters continue to hold
348	–	*/
349	–	public void testisQuiescent() throws InterruptedException {
350	–	ForkJoinPool p = null;
351	–	try {
352	–	p = new ForkJoinPool(2);
353	–	p.invoke(new FibTask(20));
354	–	assertTrue(p.getFactory() ==
355	–	ForkJoinPool.defaultForkJoinWorkerThreadFactory);
356	–	Thread.sleep(MEDIUM_DELAY_MS);
281		assertTrue(p.isQuiescent());
358	–	assertTrue(p.getMaintainsParallelism());
282		assertFalse(p.getAsyncMode());
283	<	assertTrue(p.getActiveThreadCount() == 0);
284	<	assertTrue(p.getQueuedTaskCount() == 0);
285	<	assertTrue(p.getQueuedSubmissionCount() == 0);
283	>	assertEquals(0, p.getActiveThreadCount());
284	>	assertEquals(0, p.getQueuedTaskCount());
285	>	assertEquals(0, p.getQueuedSubmissionCount());
286		assertFalse(p.hasQueuedSubmissions());
287		assertFalse(p.isShutdown());
288		assertFalse(p.isTerminating());
289		assertFalse(p.isTerminated());
290	+	assertTrue(f.isDone());
291	+	assertEquals(6765, (int) f.get());
292		} finally {
293		joinPool(p);
294		}
#	Line 373 | Line 298 | public class ForkJoinPoolTest extends JS
298		* Completed submit(ForkJoinTask) returns result
299		*/
300		public void testSubmitForkJoinTask() throws Throwable {
301	<	ForkJoinPool p = null;
301	>	ForkJoinPool p = new ForkJoinPool(1);
302		try {
378	–	p = new ForkJoinPool(1);
303		ForkJoinTask<Integer> f = p.submit(new FibTask(8));
304	<	int r = f.get();
381	<	assertTrue(r == 21);
304	>	assertEquals(21, (int) f.get());
305		} finally {
306		joinPool(p);
307		}
#	Line 388 | Line 311 | public class ForkJoinPoolTest extends JS
311		* A task submitted after shutdown is rejected
312		*/
313		public void testSubmitAfterShutdown() {
314	<	ForkJoinPool p = null;
314	>	ForkJoinPool p = new ForkJoinPool(1);
315		try {
393	–	p = new ForkJoinPool(1);
316		p.shutdown();
317		assertTrue(p.isShutdown());
318	<	ForkJoinTask<Integer> f = p.submit(new FibTask(8));
319	<	shouldThrow();
320	<	} catch (RejectedExecutionException success) {
318	>	try {
319	>	ForkJoinTask<Integer> f = p.submit(new FibTask(8));
320	>	shouldThrow();
321	>	} catch (RejectedExecutionException success) {}
322		} finally {
323		joinPool(p);
324		}
#	Line 405 | Line 328 | public class ForkJoinPoolTest extends JS
328		* Pool maintains parallelism when using ManagedBlocker
329		*/
330		public void testBlockingForkJoinTask() throws Throwable {
331	<	ForkJoinPool p = null;
331	>	ForkJoinPool p = new ForkJoinPool(4);
332		try {
410	–	p = new ForkJoinPool(4);
333		ReentrantLock lock = new ReentrantLock();
334		ManagedLocker locker = new ManagedLocker(lock);
335	<	ForkJoinTask<Integer> f = new LockingFibTask(30, locker, lock);
335	>	ForkJoinTask<Integer> f = new LockingFibTask(20, locker, lock);
336		p.execute(f);
337	<	assertTrue(p.getPoolSize() >= 4);
416	<	int r = f.get();
417	<	assertTrue(r ==  832040);
337	>	assertEquals(6765, (int) f.get());
338		} finally {
339		p.shutdownNow(); // don't wait out shutdown
340		}
#	Line 424 | Line 344 | public class ForkJoinPoolTest extends JS
344		* pollSubmission returns unexecuted submitted task, if present
345		*/
346		public void testPollSubmission() {
347	<	SubFJP p = null;
347	>	final CountDownLatch done = new CountDownLatch(1);
348	>	SubFJP p = new SubFJP();
349		try {
350	<	p = new SubFJP();
351	<	ForkJoinTask a = p.submit(new MediumRunnable());
352	<	ForkJoinTask b = p.submit(new MediumRunnable());
432	<	ForkJoinTask c = p.submit(new MediumRunnable());
350	>	ForkJoinTask a = p.submit(awaiter(done));
351	>	ForkJoinTask b = p.submit(awaiter(done));
352	>	ForkJoinTask c = p.submit(awaiter(done));
353		ForkJoinTask r = p.pollSubmission();
354		assertTrue(r == a || r == b || r == c);
355		assertFalse(r.isDone());
356		} finally {
357	+	done.countDown();
358		joinPool(p);
359		}
360		}
#	Line 442 | Line 363 | public class ForkJoinPoolTest extends JS
363		* drainTasksTo transfers unexecuted submitted tasks, if present
364		*/
365		public void testDrainTasksTo() {
366	<	SubFJP p = null;
366	>	final CountDownLatch done = new CountDownLatch(1);
367	>	SubFJP p = new SubFJP();
368		try {
369	<	p = new SubFJP();
370	<	ForkJoinTask a = p.submit(new MediumRunnable());
371	<	ForkJoinTask b = p.submit(new MediumRunnable());
450	<	ForkJoinTask c = p.submit(new MediumRunnable());
369	>	ForkJoinTask a = p.submit(awaiter(done));
370	>	ForkJoinTask b = p.submit(awaiter(done));
371	>	ForkJoinTask c = p.submit(awaiter(done));
372		ArrayList<ForkJoinTask> al = new ArrayList();
373		p.drainTasksTo(al);
374		assertTrue(al.size() > 0);
#	Line 456 | Line 377 | public class ForkJoinPoolTest extends JS
377		assertFalse(r.isDone());
378		}
379		} finally {
380	+	done.countDown();
381		joinPool(p);
382		}
383		}
384
463	–
385		// FJ Versions of AbstractExecutorService tests
386
387		/**
#	Line 468 | Line 389 | public class ForkJoinPoolTest extends JS
389		*/
390		public void testExecuteRunnable() throws Throwable {
391		ExecutorService e = new ForkJoinPool(1);
392	<	TrackedShortRunnable task = new TrackedShortRunnable();
393	<	assertFalse(task.done);
394	<	Future<?> future = e.submit(task);
395	<	future.get();
396	<	assertTrue(task.done);
392	>	try {
393	>	final AtomicBoolean done = new AtomicBoolean(false);
394	>	CheckedRunnable task = new CheckedRunnable() {
395	>	public void realRun() {
396	>	done.set(true);
397	>	}};
398	>	Future<?> future = e.submit(task);
399	>	assertNull(future.get());
400	>	assertNull(future.get(0, MILLISECONDS));
401	>	assertTrue(done.get());
402	>	assertTrue(future.isDone());
403	>	assertFalse(future.isCancelled());
404	>	} finally {
405	>	joinPool(e);
406	>	}
407		}
408
478	–
409		/**
410		* Completed submit(callable) returns result
411		*/
412		public void testSubmitCallable() throws Throwable {
413		ExecutorService e = new ForkJoinPool(1);
414	<	Future<String> future = e.submit(new StringTask());
415	<	String result = future.get();
416	<	assertSame(TEST_STRING, result);
414	>	try {
415	>	Future<String> future = e.submit(new StringTask());
416	>	assertSame(TEST_STRING, future.get());
417	>	assertTrue(future.isDone());
418	>	assertFalse(future.isCancelled());
419	>	} finally {
420	>	joinPool(e);
421	>	}
422		}
423
424		/**
#	Line 491 | Line 426 | public class ForkJoinPoolTest extends JS
426		*/
427		public void testSubmitRunnable() throws Throwable {
428		ExecutorService e = new ForkJoinPool(1);
429	<	Future<?> future = e.submit(new NoOpRunnable());
430	<	future.get();
431	<	assertTrue(future.isDone());
429	>	try {
430	>	Future<?> future = e.submit(new NoOpRunnable());
431	>	assertNull(future.get());
432	>	assertTrue(future.isDone());
433	>	assertFalse(future.isCancelled());
434	>	} finally {
435	>	joinPool(e);
436	>	}
437		}
438
439		/**
#	Line 501 | Line 441 | public class ForkJoinPoolTest extends JS
441		*/
442		public void testSubmitRunnable2() throws Throwable {
443		ExecutorService e = new ForkJoinPool(1);
444	<	Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING);
445	<	String result = future.get();
446	<	assertSame(TEST_STRING, result);
444	>	try {
445	>	Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING);
446	>	assertSame(TEST_STRING, future.get());
447	>	assertTrue(future.isDone());
448	>	assertFalse(future.isCancelled());
449	>	} finally {
450	>	joinPool(e);
451	>	}
452		}
453
509	–
454		/**
455	<	* A submitted privileged action to completion
455	>	* A submitted privileged action runs to completion
456		*/
457	<	public void testSubmitPrivilegedAction() throws Throwable {
458	<	Policy savedPolicy = null;
459	<	try {
460	<	savedPolicy = Policy.getPolicy();
461	<	AdjustablePolicy policy = new AdjustablePolicy();
518	<	policy.addPermission(new RuntimePermission("getContextClassLoader"));
519	<	policy.addPermission(new RuntimePermission("setContextClassLoader"));
520	<	Policy.setPolicy(policy);
521	<	} catch (AccessControlException ok) {
522	<	return;
523	<	}
524	<	try {
525	<	ExecutorService e = new ForkJoinPool(1);
526	<	Future future = e.submit(Executors.callable(new PrivilegedAction() {
457	>	public void testSubmitPrivilegedAction() throws Exception {
458	>	Runnable r = new CheckedRunnable() {
459	>	public void realRun() throws Exception {
460	>	ExecutorService e = new ForkJoinPool(1);
461	>	Future future = e.submit(Executors.callable(new PrivilegedAction() {
462		public Object run() {
463		return TEST_STRING;
464		}}));
465
466	<	Object result = future.get();
467	<	assertSame(TEST_STRING, result);
468	<	}
469	<	finally {
470	<	Policy.setPolicy(savedPolicy);
536	<	}
466	>	assertSame(TEST_STRING, future.get());
467	>	}};
468	>
469	>	runWithPermissions(r,
470	>	new RuntimePermission("modifyThread"));
471		}
472
473		/**
474	<	* A submitted a privileged exception action runs to completion
474	>	* A submitted privileged exception action runs to completion
475		*/
476	<	public void testSubmitPrivilegedExceptionAction() throws Throwable {
477	<	Policy savedPolicy = null;
478	<	try {
479	<	savedPolicy = Policy.getPolicy();
480	<	AdjustablePolicy policy = new AdjustablePolicy();
547	<	policy.addPermission(new RuntimePermission("getContextClassLoader"));
548	<	policy.addPermission(new RuntimePermission("setContextClassLoader"));
549	<	Policy.setPolicy(policy);
550	<	} catch (AccessControlException ok) {
551	<	return;
552	<	}
553	<
554	<	try {
555	<	ExecutorService e = new ForkJoinPool(1);
556	<	Future future = e.submit(Executors.callable(new PrivilegedExceptionAction() {
476	>	public void testSubmitPrivilegedExceptionAction() throws Exception {
477	>	Runnable r = new CheckedRunnable() {
478	>	public void realRun() throws Exception {
479	>	ExecutorService e = new ForkJoinPool(1);
480	>	Future future = e.submit(Executors.callable(new PrivilegedExceptionAction() {
481		public Object run() {
482		return TEST_STRING;
483		}}));
484
485	<	Object result = future.get();
486	<	assertSame(TEST_STRING, result);
487	<	}
488	<	finally {
565	<	Policy.setPolicy(savedPolicy);
566	<	}
485	>	assertSame(TEST_STRING, future.get());
486	>	}};
487	>
488	>	runWithPermissions(r, new RuntimePermission("modifyThread"));
489		}
490
491		/**
492		* A submitted failed privileged exception action reports exception
493		*/
494	<	public void testSubmitFailedPrivilegedExceptionAction() throws Throwable {
495	<	Policy savedPolicy = null;
496	<	try {
497	<	savedPolicy = Policy.getPolicy();
498	<	AdjustablePolicy policy = new AdjustablePolicy();
577	<	policy.addPermission(new RuntimePermission("getContextClassLoader"));
578	<	policy.addPermission(new RuntimePermission("setContextClassLoader"));
579	<	Policy.setPolicy(policy);
580	<	} catch (AccessControlException ok) {
581	<	return;
582	<	}
583	<
584	<
585	<	try {
586	<	ExecutorService e = new ForkJoinPool(1);
587	<	Future future = e.submit(Executors.callable(new PrivilegedExceptionAction() {
494	>	public void testSubmitFailedPrivilegedExceptionAction() throws Exception {
495	>	Runnable r = new CheckedRunnable() {
496	>	public void realRun() throws Exception {
497	>	ExecutorService e = new ForkJoinPool(1);
498	>	Future future = e.submit(Executors.callable(new PrivilegedExceptionAction() {
499		public Object run() throws Exception {
500		throw new IndexOutOfBoundsException();
501		}}));
502
503	<	Object result = future.get();
504	<	shouldThrow();
505	<	} catch (ExecutionException success) {
506	<	} finally {
507	<	Policy.setPolicy(savedPolicy);
508	<	}
503	>	try {
504	>	future.get();
505	>	shouldThrow();
506	>	} catch (ExecutionException success) {
507	>	assertTrue(success.getCause() instanceof IndexOutOfBoundsException);
508	>	}}};
509	>
510	>	runWithPermissions(r, new RuntimePermission("modifyThread"));
511		}
512
513		/**
514		* execute(null runnable) throws NullPointerException
515		*/
516		public void testExecuteNullRunnable() {
517	+	ExecutorService e = new ForkJoinPool(1);
518		try {
519	<	ExecutorService e = new ForkJoinPool(1);
606	<	TrackedShortRunnable task = null;
607	<	Future<?> future = e.submit(task);
519	>	Future<?> future = e.submit((Runnable) null);
520		shouldThrow();
521		} catch (NullPointerException success) {
522	+	} finally {
523	+	joinPool(e);
524		}
525		}
526
613	–
527		/**
528		* submit(null callable) throws NullPointerException
529		*/
530		public void testSubmitNullCallable() {
531	+	ExecutorService e = new ForkJoinPool(1);
532		try {
533	<	ExecutorService e = new ForkJoinPool(1);
620	<	StringTask t = null;
621	<	Future<String> future = e.submit(t);
533	>	Future<String> future = e.submit((Callable) null);
534		shouldThrow();
535		} catch (NullPointerException success) {
536	+	} finally {
537	+	joinPool(e);
538		}
539		}
540
627	–
541		/**
542	<	* Blocking on submit(callable) throws InterruptedException if
630	<	* caller interrupted.
542	>	* submit(callable).get() throws InterruptedException if interrupted
543		*/
544		public void testInterruptedSubmit() throws InterruptedException {
545	<	final ForkJoinPool p = new ForkJoinPool(1);
546	<
547	<	Thread t = new Thread(new CheckedInterruptedRunnable() {
548	<	void realRun() throws Throwable {
549	<	p.submit(new CheckedCallable<Object>() {
550	<	public Object realCall() throws Throwable {
551	<	try {
552	<	Thread.sleep(MEDIUM_DELAY_MS);
553	<	} catch (InterruptedException ok) {
554	<	}
555	<	return null;
556	<	}}).get();
557	<	}});
558	<
559	<	t.start();
560	<	Thread.sleep(SHORT_DELAY_MS);
561	<	t.interrupt();
562	<	t.join();
563	<	p.shutdownNow();
564	<	joinPool(p);
545	>	final CountDownLatch submitted    = new CountDownLatch(1);
546	>	final CountDownLatch quittingTime = new CountDownLatch(1);
547	>	final ExecutorService p = new ForkJoinPool(1);
548	>	final Callable<Void> awaiter = new CheckedCallable<Void>() {
549	>	public Void realCall() throws InterruptedException {
550	>	assertTrue(quittingTime.await(MEDIUM_DELAY_MS, MILLISECONDS));
551	>	return null;
552	>	}};
553	>	try {
554	>	Thread t = new Thread(new CheckedInterruptedRunnable() {
555	>	public void realRun() throws Exception {
556	>	Future<Void> future = p.submit(awaiter);
557	>	submitted.countDown();
558	>	future.get();
559	>	}});
560	>	t.start();
561	>	assertTrue(submitted.await(MEDIUM_DELAY_MS, MILLISECONDS));
562	>	t.interrupt();
563	>	t.join();
564	>	} finally {
565	>	quittingTime.countDown();
566	>	joinPool(p);
567	>	}
568		}
569
570		/**
#	Line 666 | Line 581 | public class ForkJoinPoolTest extends JS
581		}}).get();
582		shouldThrow();
583		} catch (ExecutionException success) {
584	+	assertTrue(success.getCause() instanceof ArithmeticException);
585	+	} finally {
586	+	joinPool(p);
587		}
670	–	joinPool(p);
588		}
589
590		/**
#	Line 699 | Line 616 | public class ForkJoinPoolTest extends JS
616		}
617
618		/**
619	<	* invokeAny(c) throws NullPointerException if c has null elements
619	>	* invokeAny(c) throws NullPointerException if c has a single null element
620		*/
621		public void testInvokeAny3() throws Throwable {
622		ExecutorService e = new ForkJoinPool(1);
623	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
624	+	l.add(null);
625		try {
707	–	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
708	–	l.add(new StringTask());
709	–	l.add(null);
626		e.invokeAny(l);
627		shouldThrow();
628		} catch (NullPointerException success) {
#	Line 716 | Line 632 | public class ForkJoinPoolTest extends JS
632		}
633
634		/**
635	<	* invokeAny(c) throws ExecutionException if no task in c completes
635	>	* invokeAny(c) throws NullPointerException if c has null elements
636		*/
637		public void testInvokeAny4() throws Throwable {
638	+	CountDownLatch latch = new CountDownLatch(1);
639		ExecutorService e = new ForkJoinPool(1);
640	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
641	+	l.add(latchAwaitingStringTask(latch));
642	+	l.add(null);
643	+	try {
644	+	e.invokeAny(l);
645	+	shouldThrow();
646	+	} catch (NullPointerException success) {
647	+	} finally {
648	+	latch.countDown();
649	+	joinPool(e);
650	+	}
651	+	}
652	+
653	+	/**
654	+	* invokeAny(c) throws ExecutionException if no task in c completes
655	+	*/
656	+	public void testInvokeAny5() throws Throwable {
657	+	ExecutorService e = new ForkJoinPool(1);
658	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
659	+	l.add(new NPETask());
660		try {
724	–	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
725	–	l.add(new NPETask());
661		e.invokeAny(l);
662		shouldThrow();
663		} catch (ExecutionException success) {
664	+	assertTrue(success.getCause() instanceof NullPointerException);
665		} finally {
666		joinPool(e);
667		}
#	Line 734 | Line 670 | public class ForkJoinPoolTest extends JS
670		/**
671		* invokeAny(c) returns result of some task in c if at least one completes
672		*/
673	<	public void testInvokeAny5() throws Throwable {
673	>	public void testInvokeAny6() throws Throwable {
674		ExecutorService e = new ForkJoinPool(1);
675		try {
676	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
676	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
677		l.add(new StringTask());
678		l.add(new StringTask());
679		String result = e.invokeAny(l);
#	Line 780 | Line 716 | public class ForkJoinPoolTest extends JS
716		*/
717		public void testInvokeAll3() throws InterruptedException {
718		ExecutorService e = new ForkJoinPool(1);
719	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
720	+	l.add(new StringTask());
721	+	l.add(null);
722		try {
784	–	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
785	–	l.add(new StringTask());
786	–	l.add(null);
723		e.invokeAll(l);
724		shouldThrow();
725		} catch (NullPointerException success) {
#	Line 798 | Line 734 | public class ForkJoinPoolTest extends JS
734		*/
735		public void testInvokeAll4() throws Throwable {
736		ExecutorService e = new ForkJoinPool(1);
737	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
738	+	l.add(new NPETask());
739	+	List<Future<String>> futures = e.invokeAll(l);
740	+	assertEquals(1, futures.size());
741		try {
742	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
803	<	l.add(new NPETask());
804	<	List<Future<String>> result = e.invokeAll(l);
805	<	assertEquals(1, result.size());
806	<	for (Future<String> future : result)
807	<	future.get();
742	>	futures.get(0).get();
743		shouldThrow();
744		} catch (ExecutionException success) {
745	+	assertTrue(success.getCause() instanceof NullPointerException);
746		} finally {
747		joinPool(e);
748		}
#	Line 818 | Line 754 | public class ForkJoinPoolTest extends JS
754		public void testInvokeAll5() throws Throwable {
755		ExecutorService e = new ForkJoinPool(1);
756		try {
757	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
757	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
758		l.add(new StringTask());
759		l.add(new StringTask());
760	<	List<Future<String>> result = e.invokeAll(l);
761	<	assertEquals(2, result.size());
762	<	for (Future<String> future : result)
760	>	List<Future<String>> futures = e.invokeAll(l);
761	>	assertEquals(2, futures.size());
762	>	for (Future<String> future : futures)
763		assertSame(TEST_STRING, future.get());
764		} finally {
765		joinPool(e);
766		}
767		}
768
833	–
769		/**
770		* timed invokeAny(null) throws NullPointerException
771		*/
#	Line 850 | Line 785 | public class ForkJoinPoolTest extends JS
785		*/
786		public void testTimedInvokeAnyNullTimeUnit() throws Throwable {
787		ExecutorService e = new ForkJoinPool(1);
788	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
789	+	l.add(new StringTask());
790		try {
854	–	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
855	–	l.add(new StringTask());
791		e.invokeAny(l, MEDIUM_DELAY_MS, null);
792		shouldThrow();
793		} catch (NullPointerException success) {
#	Line 880 | Line 815 | public class ForkJoinPoolTest extends JS
815		* timed invokeAny(c) throws NullPointerException if c has null elements
816		*/
817		public void testTimedInvokeAny3() throws Throwable {
818	+	CountDownLatch latch = new CountDownLatch(1);
819		ExecutorService e = new ForkJoinPool(1);
820	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
821	+	l.add(latchAwaitingStringTask(latch));
822	+	l.add(null);
823		try {
885	–	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
886	–	l.add(new StringTask());
887	–	l.add(null);
824		e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
825		shouldThrow();
826		} catch (NullPointerException success) {
827		} finally {
828	+	latch.countDown();
829		joinPool(e);
830		}
831		}
#	Line 898 | Line 835 | public class ForkJoinPoolTest extends JS
835		*/
836		public void testTimedInvokeAny4() throws Throwable {
837		ExecutorService e = new ForkJoinPool(1);
838	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
839	+	l.add(new NPETask());
840		try {
902	–	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
903	–	l.add(new NPETask());
841		e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
842		shouldThrow();
843		} catch (ExecutionException success) {
844	+	assertTrue(success.getCause() instanceof NullPointerException);
845		} finally {
846		joinPool(e);
847		}
#	Line 915 | Line 853 | public class ForkJoinPoolTest extends JS
853		public void testTimedInvokeAny5() throws Throwable {
854		ExecutorService e = new ForkJoinPool(1);
855		try {
856	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
856	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
857		l.add(new StringTask());
858		l.add(new StringTask());
859		String result = e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
#	Line 944 | Line 882 | public class ForkJoinPoolTest extends JS
882		*/
883		public void testTimedInvokeAllNullTimeUnit() throws Throwable {
884		ExecutorService e = new ForkJoinPool(1);
885	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
886	+	l.add(new StringTask());
887		try {
948	–	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
949	–	l.add(new StringTask());
888		e.invokeAll(l, MEDIUM_DELAY_MS, null);
889		shouldThrow();
890		} catch (NullPointerException success) {
#	Line 975 | Line 913 | public class ForkJoinPoolTest extends JS
913		*/
914		public void testTimedInvokeAll3() throws InterruptedException {
915		ExecutorService e = new ForkJoinPool(1);
916	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
917	+	l.add(new StringTask());
918	+	l.add(null);
919		try {
979	–	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
980	–	l.add(new StringTask());
981	–	l.add(null);
920		e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
921		shouldThrow();
922		} catch (NullPointerException success) {
#	Line 992 | Line 930 | public class ForkJoinPoolTest extends JS
930		*/
931		public void testTimedInvokeAll4() throws Throwable {
932		ExecutorService e = new ForkJoinPool(1);
933	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
934	+	l.add(new NPETask());
935	+	List<Future<String>> futures
936	+	= e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
937	+	assertEquals(1, futures.size());
938		try {
939	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
997	<	l.add(new NPETask());
998	<	List<Future<String>> result
999	<	= e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1000	<	assertEquals(1, result.size());
1001	<	for (Future<String> future : result)
1002	<	future.get();
939	>	futures.get(0).get();
940		shouldThrow();
941		} catch (ExecutionException success) {
942	+	assertTrue(success.getCause() instanceof NullPointerException);
943		} finally {
944		joinPool(e);
945		}
#	Line 1013 | Line 951 | public class ForkJoinPoolTest extends JS
951		public void testTimedInvokeAll5() throws Throwable {
952		ExecutorService e = new ForkJoinPool(1);
953		try {
954	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
954	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
955		l.add(new StringTask());
956		l.add(new StringTask());
957	<	List<Future<String>> result
957	>	List<Future<String>> futures
958		= e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
959	<	assertEquals(2, result.size());
960	<	for (Future<String> future : result)
959	>	assertEquals(2, futures.size());
960	>	for (Future<String> future : futures)
961		assertSame(TEST_STRING, future.get());
962		} finally {
963		joinPool(e);

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