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

Comparing jsr166/src/test/tck/ForkJoinPoolTest.java (file contents):
Revision 1.10 by jsr166, Sat Nov 21 10:25:05 2009 UTC vs.
Revision 1.52 by jsr166, Wed Sep 25 07:39:17 2013 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 static java.util.concurrent.TimeUnit.NANOSECONDS;
29	>	import java.security.AccessControlException;
30	>	import java.security.Policy;
31	>	import java.security.PrivilegedAction;
32	>	import java.security.PrivilegedExceptionAction;
33
34		public class ForkJoinPoolTest extends JSR166TestCase {
35		public static void main(String[] args) {
36	<	junit.textui.TestRunner.run (suite());
36	>	junit.textui.TestRunner.run(suite());
37		}
38	+
39		public static Test suite() {
40		return new TestSuite(ForkJoinPoolTest.class);
41		}
42
43	<	/**
43	>	/*
44		* Testing coverage notes:
45		*
46		* 1. shutdown and related methods are tested via super.joinPool.
#	Line 39 | Line 59 | public class ForkJoinPoolTest extends JS
59		// Some classes to test extension and factory methods
60
61		static class MyHandler implements Thread.UncaughtExceptionHandler {
62	<	int catches = 0;
62	>	volatile int catches = 0;
63		public void uncaughtException(Thread t, Throwable e) {
64		++catches;
65		}
#	Line 48 | Line 68 | public class ForkJoinPoolTest extends JS
68		// to test handlers
69		static class FailingFJWSubclass extends ForkJoinWorkerThread {
70		public FailingFJWSubclass(ForkJoinPool p) { super(p) ; }
71	<	protected void onStart() { throw new Error(); }
71	>	protected void onStart() { super.onStart(); throw new Error(); }
72		}
73
74		static class FailingThreadFactory
75		implements ForkJoinPool.ForkJoinWorkerThreadFactory {
76	<	int calls = 0;
76	>	volatile int calls = 0;
77		public ForkJoinWorkerThread newThread(ForkJoinPool p) {
78		if (++calls > 1) return null;
79		return new FailingFJWSubclass(p);
#	Line 88 | Line 108 | public class ForkJoinPoolTest extends JS
108		static final class FibTask extends RecursiveTask<Integer> {
109		final int number;
110		FibTask(int n) { number = n; }
111	<	public Integer compute() {
111	>	protected Integer compute() {
112		int n = number;
113		if (n <= 1)
114		return n;
#	Line 116 | Line 136 | public class ForkJoinPoolTest extends JS
136		this.locker = locker;
137		this.lock = lock;
138		}
139	<	public Integer compute() {
139	>	protected Integer compute() {
140		int n;
141		LockingFibTask f1 = null;
142		LockingFibTask f2 = null;
#	Line 142 | Line 162 | public class ForkJoinPoolTest extends JS
162		* tasks, and quiescent running state.
163		*/
164		public void testDefaultInitialState() {
165	<	ForkJoinPool p = null;
165	>	ForkJoinPool p = new ForkJoinPool(1);
166		try {
167	<	p = new ForkJoinPool(1);
168	<	assertTrue(p.getFactory() ==
149	<	ForkJoinPool.defaultForkJoinWorkerThreadFactory);
150	<	assertTrue(p.isQuiescent());
151	<	assertTrue(p.getMaintainsParallelism());
167	>	assertSame(ForkJoinPool.defaultForkJoinWorkerThreadFactory,
168	>	p.getFactory());
169		assertFalse(p.getAsyncMode());
170	<	assertTrue(p.getActiveThreadCount() == 0);
171	<	assertTrue(p.getStealCount() == 0);
172	<	assertTrue(p.getQueuedTaskCount() == 0);
173	<	assertTrue(p.getQueuedSubmissionCount() == 0);
170	>	assertEquals(0, p.getActiveThreadCount());
171	>	assertEquals(0, p.getStealCount());
172	>	assertEquals(0, p.getQueuedTaskCount());
173	>	assertEquals(0, p.getQueuedSubmissionCount());
174		assertFalse(p.hasQueuedSubmissions());
175		assertFalse(p.isShutdown());
176		assertFalse(p.isTerminating());
#	Line 178 | Line 195 | public class ForkJoinPoolTest extends JS
195		*/
196		public void testConstructor2() {
197		try {
198	<	new ForkJoinPool(1, null);
198	>	new ForkJoinPool(1, null, null, false);
199		shouldThrow();
200		} catch (NullPointerException success) {}
201		}
202
186	–
203		/**
204		* getParallelism returns size set in constructor
205		*/
206		public void testGetParallelism() {
207	<	ForkJoinPool p = null;
192	<	try {
193	<	p = new ForkJoinPool(1);
194	<	assertTrue(p.getParallelism() == 1);
195	<	} finally {
196	<	joinPool(p);
197	<	}
198	<	}
199	<
200	<	/**
201	<	* setParallelism changes reported parallelism level.
202	<	*/
203	<	public void testSetParallelism() {
204	<	ForkJoinPool p = null;
205	<	try {
206	<	p = new ForkJoinPool(1);
207	<	assertTrue(p.getParallelism() == 1);
208	<	p.setParallelism(2);
209	<	assertTrue(p.getParallelism() == 2);
210	<	} finally {
211	<	joinPool(p);
212	<	}
213	<	}
214	<
215	<	/**
216	<	* setParallelism with argument <= 0 throws exception
217	<	*/
218	<	public void testSetParallelism2() {
219	<	ForkJoinPool p = null;
207	>	ForkJoinPool p = new ForkJoinPool(1);
208		try {
209	<	p = new ForkJoinPool(1);
222	<	assertTrue(p.getParallelism() == 1);
223	<	p.setParallelism(-2);
224	<	shouldThrow();
225	<	} catch (IllegalArgumentException success) {
209	>	assertEquals(1, p.getParallelism());
210		} finally {
211		joinPool(p);
212		}
#	Line 232 | Line 216 | public class ForkJoinPoolTest extends JS
216		* getPoolSize returns number of started workers.
217		*/
218		public void testGetPoolSize() {
219	<	ForkJoinPool p = null;
219	>	ForkJoinPool p = new ForkJoinPool(1);
220		try {
221	<	p = new ForkJoinPool(1);
238	<	assertTrue(p.getPoolSize() == 0);
221	>	assertEquals(0, p.getActiveThreadCount());
222		Future<String> future = p.submit(new StringTask());
223	<	assertTrue(p.getPoolSize() == 1);
241	<
223	>	assertEquals(1, p.getPoolSize());
224		} finally {
225		joinPool(p);
226		}
227		}
228
229		/**
230	<	* setMaximumPoolSize changes size reported by getMaximumPoolSize.
230	>	* awaitTermination on a non-shutdown pool times out
231		*/
232	<	public void testSetMaximumPoolSize() {
233	<	ForkJoinPool p = null;
234	<	try {
235	<	p = new ForkJoinPool(1);
236	<	p.setMaximumPoolSize(2);
237	<	assertTrue(p.getMaximumPoolSize() == 2);
238	<	} finally {
239	<	joinPool(p);
240	<	}
241	<	}
242	<
243	<	/**
244	<	* setMaximumPoolSize with argument <= 0 throws exception
245	<	*/
246	<	public void testSetMaximumPoolSize2() {
247	<	ForkJoinPool p = null;
248	<	try {
249	<	p = new ForkJoinPool(1);
250	<	p.setMaximumPoolSize(-2);
251	<	shouldThrow();
252	<	} catch (IllegalArgumentException success) {
253	<	} finally {
272	<	joinPool(p);
273	<	}
274	<	}
275	<
276	<	/**
277	<	* setMaintainsParallelism changes policy reported by
278	<	* getMaintainsParallelism.
279	<	*/
280	<	public void testSetMaintainsParallelism() {
281	<	ForkJoinPool p = null;
282	<	try {
283	<	p = new ForkJoinPool(1);
284	<	p.setMaintainsParallelism(false);
285	<	assertFalse(p.getMaintainsParallelism());
286	<	} finally {
287	<	joinPool(p);
288	<	}
289	<	}
290	<
291	<	/**
292	<	* setAsyncMode changes policy reported by
293	<	* getAsyncMode.
294	<	*/
295	<	public void testSetAsyncMode() {
296	<	ForkJoinPool p = null;
297	<	try {
298	<	p = new ForkJoinPool(1);
299	<	p.setAsyncMode(true);
300	<	assertTrue(p.getAsyncMode());
301	<	} finally {
302	<	joinPool(p);
303	<	}
232	>	public void testAwaitTermination_timesOut() throws InterruptedException {
233	>	ForkJoinPool p = new ForkJoinPool(1);
234	>	assertFalse(p.isTerminated());
235	>	assertFalse(p.awaitTermination(Long.MIN_VALUE, NANOSECONDS));
236	>	assertFalse(p.awaitTermination(Long.MIN_VALUE, MILLISECONDS));
237	>	assertFalse(p.awaitTermination(-1L, NANOSECONDS));
238	>	assertFalse(p.awaitTermination(-1L, MILLISECONDS));
239	>	assertFalse(p.awaitTermination(0L, NANOSECONDS));
240	>	assertFalse(p.awaitTermination(0L, MILLISECONDS));
241	>	long timeoutNanos = 999999L;
242	>	long startTime = System.nanoTime();
243	>	assertFalse(p.awaitTermination(timeoutNanos, NANOSECONDS));
244	>	assertTrue(System.nanoTime() - startTime >= timeoutNanos);
245	>	assertFalse(p.isTerminated());
246	>	startTime = System.nanoTime();
247	>	long timeoutMillis = timeoutMillis();
248	>	assertFalse(p.awaitTermination(timeoutMillis, MILLISECONDS));
249	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
250	>	assertFalse(p.isTerminated());
251	>	p.shutdown();
252	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
253	>	assertTrue(p.isTerminated());
254		}
255
256		/**
#	Line 310 | Line 260 | public class ForkJoinPoolTest extends JS
260		* performs its defined action
261		*/
262		public void testSetUncaughtExceptionHandler() throws InterruptedException {
263	<	ForkJoinPool p = null;
264	<	try {
265	<	p = new ForkJoinPool(1, new FailingThreadFactory());
266	<	MyHandler eh = new MyHandler();
267	<	p.setUncaughtExceptionHandler(eh);
268	<	assertEquals(eh, p.getUncaughtExceptionHandler());
269	<	p.execute(new FailingTask());
270	<	Thread.sleep(MEDIUM_DELAY_MS);
271	<	assertTrue(eh.catches > 0);
263	>	final CountDownLatch uehInvoked = new CountDownLatch(1);
264	>	final Thread.UncaughtExceptionHandler eh =
265	>	new Thread.UncaughtExceptionHandler() {
266	>	public void uncaughtException(Thread t, Throwable e) {
267	>	uehInvoked.countDown();
268	>	}};
269	>	ForkJoinPool p = new ForkJoinPool(1, new FailingThreadFactory(),
270	>	eh, false);
271	>	try {
272	>	assertSame(eh, p.getUncaughtExceptionHandler());
273	>	try {
274	>	p.execute(new FibTask(8));
275	>	assertTrue(uehInvoked.await(MEDIUM_DELAY_MS, MILLISECONDS));
276	>	} catch (RejectedExecutionException ok) {
277	>	}
278		} finally {
279	+	p.shutdownNow(); // failure might have prevented processing task
280		joinPool(p);
281		}
282		}
283
284		/**
285	<	* setUncaughtExceptionHandler of null removes handler
285	>	* After invoking a single task, isQuiescent eventually becomes
286	>	* true, at which time queues are empty, threads are not active,
287	>	* the task has completed successfully, and construction
288	>	* parameters continue to hold
289		*/
290	<	public void testSetUncaughtExceptionHandler2() {
291	<	ForkJoinPool p = null;
290	>	public void testIsQuiescent() throws Exception {
291	>	ForkJoinPool p = new ForkJoinPool(2);
292		try {
293	<	p = new ForkJoinPool(1);
294	<	p.setUncaughtExceptionHandler(null);
295	<	assertNull(p.getUncaughtExceptionHandler());
296	<	} finally {
297	<	joinPool(p);
298	<	}
299	<	}
300	<
293	>	assertTrue(p.isQuiescent());
294	>	long startTime = System.nanoTime();
295	>	FibTask f = new FibTask(20);
296	>	p.invoke(f);
297	>	assertSame(ForkJoinPool.defaultForkJoinWorkerThreadFactory,
298	>	p.getFactory());
299	>	while (! p.isQuiescent()) {
300	>	if (millisElapsedSince(startTime) > LONG_DELAY_MS)
301	>	throw new AssertionFailedError("timed out");
302	>	assertFalse(p.getAsyncMode());
303	>	assertFalse(p.isShutdown());
304	>	assertFalse(p.isTerminating());
305	>	assertFalse(p.isTerminated());
306	>	Thread.yield();
307	>	}
308
342	–	/**
343	–	* After invoking a single task, isQuiescent is true,
344	–	* queues are empty, threads are not active, and
345	–	* construction parameters continue to hold
346	–	*/
347	–	public void testisQuiescent() throws InterruptedException {
348	–	ForkJoinPool p = null;
349	–	try {
350	–	p = new ForkJoinPool(2);
351	–	p.invoke(new FibTask(20));
352	–	assertTrue(p.getFactory() ==
353	–	ForkJoinPool.defaultForkJoinWorkerThreadFactory);
354	–	Thread.sleep(MEDIUM_DELAY_MS);
309		assertTrue(p.isQuiescent());
356	–	assertTrue(p.getMaintainsParallelism());
310		assertFalse(p.getAsyncMode());
311	<	assertTrue(p.getActiveThreadCount() == 0);
312	<	assertTrue(p.getQueuedTaskCount() == 0);
313	<	assertTrue(p.getQueuedSubmissionCount() == 0);
311	>	assertEquals(0, p.getActiveThreadCount());
312	>	assertEquals(0, p.getQueuedTaskCount());
313	>	assertEquals(0, p.getQueuedSubmissionCount());
314		assertFalse(p.hasQueuedSubmissions());
315		assertFalse(p.isShutdown());
316		assertFalse(p.isTerminating());
317		assertFalse(p.isTerminated());
318	+	assertTrue(f.isDone());
319	+	assertEquals(6765, (int) f.get());
320		} finally {
321		joinPool(p);
322		}
#	Line 371 | Line 326 | public class ForkJoinPoolTest extends JS
326		* Completed submit(ForkJoinTask) returns result
327		*/
328		public void testSubmitForkJoinTask() throws Throwable {
329	<	ForkJoinPool p = null;
329	>	ForkJoinPool p = new ForkJoinPool(1);
330		try {
376	–	p = new ForkJoinPool(1);
331		ForkJoinTask<Integer> f = p.submit(new FibTask(8));
332	<	int r = f.get();
379	<	assertTrue(r == 21);
332	>	assertEquals(21, (int) f.get());
333		} finally {
334		joinPool(p);
335		}
#	Line 386 | Line 339 | public class ForkJoinPoolTest extends JS
339		* A task submitted after shutdown is rejected
340		*/
341		public void testSubmitAfterShutdown() {
342	<	ForkJoinPool p = null;
342	>	ForkJoinPool p = new ForkJoinPool(1);
343		try {
391	–	p = new ForkJoinPool(1);
344		p.shutdown();
345		assertTrue(p.isShutdown());
346	<	ForkJoinTask<Integer> f = p.submit(new FibTask(8));
347	<	shouldThrow();
348	<	} catch (RejectedExecutionException success) {
346	>	try {
347	>	ForkJoinTask<Integer> f = p.submit(new FibTask(8));
348	>	shouldThrow();
349	>	} catch (RejectedExecutionException success) {}
350		} finally {
351		joinPool(p);
352		}
#	Line 403 | Line 356 | public class ForkJoinPoolTest extends JS
356		* Pool maintains parallelism when using ManagedBlocker
357		*/
358		public void testBlockingForkJoinTask() throws Throwable {
359	<	ForkJoinPool p = null;
359	>	ForkJoinPool p = new ForkJoinPool(4);
360		try {
408	–	p = new ForkJoinPool(4);
361		ReentrantLock lock = new ReentrantLock();
362		ManagedLocker locker = new ManagedLocker(lock);
363	<	ForkJoinTask<Integer> f = new LockingFibTask(30, locker, lock);
363	>	ForkJoinTask<Integer> f = new LockingFibTask(20, locker, lock);
364		p.execute(f);
365	<	assertTrue(p.getPoolSize() >= 4);
414	<	int r = f.get();
415	<	assertTrue(r ==  832040);
365	>	assertEquals(6765, (int) f.get());
366		} finally {
367		p.shutdownNow(); // don't wait out shutdown
368		}
#	Line 422 | Line 372 | public class ForkJoinPoolTest extends JS
372		* pollSubmission returns unexecuted submitted task, if present
373		*/
374		public void testPollSubmission() {
375	<	SubFJP p = null;
375	>	final CountDownLatch done = new CountDownLatch(1);
376	>	SubFJP p = new SubFJP();
377		try {
378	<	p = new SubFJP();
379	<	ForkJoinTask a = p.submit(new MediumRunnable());
380	<	ForkJoinTask b = p.submit(new MediumRunnable());
430	<	ForkJoinTask c = p.submit(new MediumRunnable());
378	>	ForkJoinTask a = p.submit(awaiter(done));
379	>	ForkJoinTask b = p.submit(awaiter(done));
380	>	ForkJoinTask c = p.submit(awaiter(done));
381		ForkJoinTask r = p.pollSubmission();
382		assertTrue(r == a || r == b || r == c);
383		assertFalse(r.isDone());
384		} finally {
385	+	done.countDown();
386		joinPool(p);
387		}
388		}
#	Line 440 | Line 391 | public class ForkJoinPoolTest extends JS
391		* drainTasksTo transfers unexecuted submitted tasks, if present
392		*/
393		public void testDrainTasksTo() {
394	<	SubFJP p = null;
394	>	final CountDownLatch done = new CountDownLatch(1);
395	>	SubFJP p = new SubFJP();
396		try {
397	<	p = new SubFJP();
398	<	ForkJoinTask a = p.submit(new MediumRunnable());
399	<	ForkJoinTask b = p.submit(new MediumRunnable());
448	<	ForkJoinTask c = p.submit(new MediumRunnable());
397	>	ForkJoinTask a = p.submit(awaiter(done));
398	>	ForkJoinTask b = p.submit(awaiter(done));
399	>	ForkJoinTask c = p.submit(awaiter(done));
400		ArrayList<ForkJoinTask> al = new ArrayList();
401		p.drainTasksTo(al);
402		assertTrue(al.size() > 0);
#	Line 454 | Line 405 | public class ForkJoinPoolTest extends JS
405		assertFalse(r.isDone());
406		}
407		} finally {
408	+	done.countDown();
409		joinPool(p);
410		}
411		}
412
461	–
413		// FJ Versions of AbstractExecutorService tests
414
415		/**
#	Line 466 | Line 417 | public class ForkJoinPoolTest extends JS
417		*/
418		public void testExecuteRunnable() throws Throwable {
419		ExecutorService e = new ForkJoinPool(1);
420	<	TrackedShortRunnable task = new TrackedShortRunnable();
421	<	assertFalse(task.done);
422	<	Future<?> future = e.submit(task);
423	<	future.get();
424	<	assertTrue(task.done);
420	>	try {
421	>	final AtomicBoolean done = new AtomicBoolean(false);
422	>	Future<?> future = e.submit(new CheckedRunnable() {
423	>	public void realRun() {
424	>	done.set(true);
425	>	}});
426	>	assertNull(future.get());
427	>	assertNull(future.get(0, MILLISECONDS));
428	>	assertTrue(done.get());
429	>	assertTrue(future.isDone());
430	>	assertFalse(future.isCancelled());
431	>	} finally {
432	>	joinPool(e);
433	>	}
434		}
435
476	–
436		/**
437		* Completed submit(callable) returns result
438		*/
439		public void testSubmitCallable() throws Throwable {
440		ExecutorService e = new ForkJoinPool(1);
441	<	Future<String> future = e.submit(new StringTask());
442	<	String result = future.get();
443	<	assertSame(TEST_STRING, result);
441	>	try {
442	>	Future<String> future = e.submit(new StringTask());
443	>	assertSame(TEST_STRING, future.get());
444	>	assertTrue(future.isDone());
445	>	assertFalse(future.isCancelled());
446	>	} finally {
447	>	joinPool(e);
448	>	}
449		}
450
451		/**
#	Line 489 | Line 453 | public class ForkJoinPoolTest extends JS
453		*/
454		public void testSubmitRunnable() throws Throwable {
455		ExecutorService e = new ForkJoinPool(1);
456	<	Future<?> future = e.submit(new NoOpRunnable());
457	<	future.get();
458	<	assertTrue(future.isDone());
456	>	try {
457	>	Future<?> future = e.submit(new NoOpRunnable());
458	>	assertNull(future.get());
459	>	assertTrue(future.isDone());
460	>	assertFalse(future.isCancelled());
461	>	} finally {
462	>	joinPool(e);
463	>	}
464		}
465
466		/**
#	Line 499 | Line 468 | public class ForkJoinPoolTest extends JS
468		*/
469		public void testSubmitRunnable2() throws Throwable {
470		ExecutorService e = new ForkJoinPool(1);
471	<	Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING);
472	<	String result = future.get();
473	<	assertSame(TEST_STRING, result);
471	>	try {
472	>	Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING);
473	>	assertSame(TEST_STRING, future.get());
474	>	assertTrue(future.isDone());
475	>	assertFalse(future.isCancelled());
476	>	} finally {
477	>	joinPool(e);
478	>	}
479		}
480
507	–
481		/**
482	<	* A submitted privileged action to completion
482	>	* A submitted privileged action runs to completion
483		*/
484	<	public void testSubmitPrivilegedAction() throws Throwable {
485	<	Policy savedPolicy = null;
486	<	try {
487	<	savedPolicy = Policy.getPolicy();
488	<	AdjustablePolicy policy = new AdjustablePolicy();
516	<	policy.addPermission(new RuntimePermission("getContextClassLoader"));
517	<	policy.addPermission(new RuntimePermission("setContextClassLoader"));
518	<	Policy.setPolicy(policy);
519	<	} catch (AccessControlException ok) {
520	<	return;
521	<	}
522	<	try {
484	>	public void testSubmitPrivilegedAction() throws Exception {
485	>	final Callable callable = Executors.callable(new PrivilegedAction() {
486	>	public Object run() { return TEST_STRING; }});
487	>	Runnable r = new CheckedRunnable() {
488	>	public void realRun() throws Exception {
489		ExecutorService e = new ForkJoinPool(1);
490	<	Future future = e.submit(Executors.callable(new PrivilegedAction() {
491	<	public Object run() {
492	<	return TEST_STRING;
493	<	}}));
490	>	try {
491	>	Future future = e.submit(callable);
492	>	assertSame(TEST_STRING, future.get());
493	>	} finally {
494	>	joinPool(e);
495	>	}
496	>	}};
497
498	<	Object result = future.get();
530	<	assertSame(TEST_STRING, result);
531	<	}
532	<	finally {
533	<	Policy.setPolicy(savedPolicy);
534	<	}
498	>	runWithPermissions(r, new RuntimePermission("modifyThread"));
499		}
500
501		/**
502	<	* A submitted a privileged exception action runs to completion
502	>	* A submitted privileged exception action runs to completion
503		*/
504	<	public void testSubmitPrivilegedExceptionAction() throws Throwable {
505	<	Policy savedPolicy = null;
506	<	try {
507	<	savedPolicy = Policy.getPolicy();
508	<	AdjustablePolicy policy = new AdjustablePolicy();
509	<	policy.addPermission(new RuntimePermission("getContextClassLoader"));
546	<	policy.addPermission(new RuntimePermission("setContextClassLoader"));
547	<	Policy.setPolicy(policy);
548	<	} catch (AccessControlException ok) {
549	<	return;
550	<	}
551	<
552	<	try {
504	>	public void testSubmitPrivilegedExceptionAction() throws Exception {
505	>	final Callable callable =
506	>	Executors.callable(new PrivilegedExceptionAction() {
507	>	public Object run() { return TEST_STRING; }});
508	>	Runnable r = new CheckedRunnable() {
509	>	public void realRun() throws Exception {
510		ExecutorService e = new ForkJoinPool(1);
511	<	Future future = e.submit(Executors.callable(new PrivilegedExceptionAction() {
512	<	public Object run() {
513	<	return TEST_STRING;
514	<	}}));
511	>	try {
512	>	Future future = e.submit(callable);
513	>	assertSame(TEST_STRING, future.get());
514	>	} finally {
515	>	joinPool(e);
516	>	}
517	>	}};
518
519	<	Object result = future.get();
560	<	assertSame(TEST_STRING, result);
561	<	}
562	<	finally {
563	<	Policy.setPolicy(savedPolicy);
564	<	}
519	>	runWithPermissions(r, new RuntimePermission("modifyThread"));
520		}
521
522		/**
523		* A submitted failed privileged exception action reports exception
524		*/
525	<	public void testSubmitFailedPrivilegedExceptionAction() throws Throwable {
526	<	Policy savedPolicy = null;
527	<	try {
528	<	savedPolicy = Policy.getPolicy();
529	<	AdjustablePolicy policy = new AdjustablePolicy();
530	<	policy.addPermission(new RuntimePermission("getContextClassLoader"));
576	<	policy.addPermission(new RuntimePermission("setContextClassLoader"));
577	<	Policy.setPolicy(policy);
578	<	} catch (AccessControlException ok) {
579	<	return;
580	<	}
581	<
582	<
583	<	try {
525	>	public void testSubmitFailedPrivilegedExceptionAction() throws Exception {
526	>	final Callable callable =
527	>	Executors.callable(new PrivilegedExceptionAction() {
528	>	public Object run() { throw new IndexOutOfBoundsException(); }});
529	>	Runnable r = new CheckedRunnable() {
530	>	public void realRun() throws Exception {
531		ExecutorService e = new ForkJoinPool(1);
532	<	Future future = e.submit(Executors.callable(new PrivilegedExceptionAction() {
533	<	public Object run() throws Exception {
534	<	throw new IndexOutOfBoundsException();
535	<	}}));
532	>	try {
533	>	Future future = e.submit(callable);
534	>	try {
535	>	future.get();
536	>	shouldThrow();
537	>	} catch (ExecutionException success) {
538	>	assertTrue(success.getCause() instanceof IndexOutOfBoundsException);
539	>	}
540	>	} finally {
541	>	joinPool(e);
542	>	}
543	>	}};
544
545	<	Object result = future.get();
591	<	shouldThrow();
592	<	} catch (ExecutionException success) {
593	<	} finally {
594	<	Policy.setPolicy(savedPolicy);
595	<	}
545	>	runWithPermissions(r, new RuntimePermission("modifyThread"));
546		}
547
548		/**
549		* execute(null runnable) throws NullPointerException
550		*/
551		public void testExecuteNullRunnable() {
552	+	ExecutorService e = new ForkJoinPool(1);
553		try {
554	<	ExecutorService e = new ForkJoinPool(1);
604	<	TrackedShortRunnable task = null;
605	<	Future<?> future = e.submit(task);
554	>	Future<?> future = e.submit((Runnable) null);
555		shouldThrow();
556	<	} catch (NullPointerException success) {}
556	>	} catch (NullPointerException success) {
557	>	} finally {
558	>	joinPool(e);
559	>	}
560		}
561
610	–
562		/**
563		* submit(null callable) throws NullPointerException
564		*/
565		public void testSubmitNullCallable() {
566	+	ExecutorService e = new ForkJoinPool(1);
567		try {
568	<	ExecutorService e = new ForkJoinPool(1);
617	<	StringTask t = null;
618	<	Future<String> future = e.submit(t);
568	>	Future<String> future = e.submit((Callable) null);
569		shouldThrow();
570	<	} catch (NullPointerException success) {}
570	>	} catch (NullPointerException success) {
571	>	} finally {
572	>	joinPool(e);
573	>	}
574		}
575
623	–
576		/**
577	<	* Blocking on submit(callable) throws InterruptedException if
626	<	* caller interrupted.
577	>	* submit(callable).get() throws InterruptedException if interrupted
578		*/
579		public void testInterruptedSubmit() throws InterruptedException {
580	<	final ForkJoinPool p = new ForkJoinPool(1);
581	<
582	<	Thread t = new Thread(new CheckedInterruptedRunnable() {
583	<	void realRun() throws Throwable {
584	<	p.submit(new CheckedCallable<Object>() {
585	<	public Object realCall() throws Throwable {
586	<	try {
587	<	Thread.sleep(MEDIUM_DELAY_MS);
588	<	} catch (InterruptedException ok) {
589	<	}
590	<	return null;
591	<	}}).get();
592	<	}});
593	<
594	<	t.start();
595	<	Thread.sleep(SHORT_DELAY_MS);
596	<	t.interrupt();
597	<	t.join();
598	<	p.shutdownNow();
599	<	joinPool(p);
580	>	final CountDownLatch submitted    = new CountDownLatch(1);
581	>	final CountDownLatch quittingTime = new CountDownLatch(1);
582	>	final ExecutorService p = new ForkJoinPool(1);
583	>	final Callable<Void> awaiter = new CheckedCallable<Void>() {
584	>	public Void realCall() throws InterruptedException {
585	>	assertTrue(quittingTime.await(MEDIUM_DELAY_MS, MILLISECONDS));
586	>	return null;
587	>	}};
588	>	try {
589	>	Thread t = new Thread(new CheckedInterruptedRunnable() {
590	>	public void realRun() throws Exception {
591	>	Future<Void> future = p.submit(awaiter);
592	>	submitted.countDown();
593	>	future.get();
594	>	}});
595	>	t.start();
596	>	assertTrue(submitted.await(MEDIUM_DELAY_MS, MILLISECONDS));
597	>	t.interrupt();
598	>	t.join();
599	>	} finally {
600	>	quittingTime.countDown();
601	>	joinPool(p);
602	>	}
603		}
604
605		/**
#	Line 656 | Line 610 | public class ForkJoinPoolTest extends JS
610		ForkJoinPool p = new ForkJoinPool(1);
611		try {
612		p.submit(new Callable() {
613	<	public Object call() {
614	<	int i = 5/0;
661	<	return Boolean.TRUE;
662	<	}}).get();
613	>	public Object call() { throw new ArithmeticException(); }})
614	>	.get();
615		shouldThrow();
616	<	} catch (ExecutionException success) {}
617	<
618	<	joinPool(p);
616	>	} catch (ExecutionException success) {
617	>	assertTrue(success.getCause() instanceof ArithmeticException);
618	>	} finally {
619	>	joinPool(p);
620	>	}
621		}
622
623		/**
#	Line 699 | Line 653 | public class ForkJoinPoolTest extends JS
653		*/
654		public void testInvokeAny3() throws Throwable {
655		ExecutorService e = new ForkJoinPool(1);
656	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
657	+	l.add(null);
658		try {
703	–	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
704	–	l.add(null);
659		e.invokeAny(l);
660		shouldThrow();
661		} catch (NullPointerException success) {
#	Line 714 | Line 668 | public class ForkJoinPoolTest extends JS
668		* invokeAny(c) throws NullPointerException if c has null elements
669		*/
670		public void testInvokeAny4() throws Throwable {
671	+	CountDownLatch latch = new CountDownLatch(1);
672		ExecutorService e = new ForkJoinPool(1);
673	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
674	+	l.add(latchAwaitingStringTask(latch));
675	+	l.add(null);
676		try {
719	–	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
720	–	l.add(new Callable<String>() {
721	–	public String call() {
722	–	// The delay gives the pool a chance to notice
723	–	// the null element.
724	–	sleepTillInterrupted(SMALL_DELAY_MS);
725	–	return "foo";
726	–	}});
727	–	l.add(null);
677		e.invokeAny(l);
678		shouldThrow();
679		} catch (NullPointerException success) {
680		} finally {
681	+	latch.countDown();
682		joinPool(e);
683		}
684		}
#	Line 738 | Line 688 | public class ForkJoinPoolTest extends JS
688		*/
689		public void testInvokeAny5() throws Throwable {
690		ExecutorService e = new ForkJoinPool(1);
691	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
692	+	l.add(new NPETask());
693		try {
742	–	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
743	–	l.add(new NPETask());
694		e.invokeAny(l);
695		shouldThrow();
696		} catch (ExecutionException success) {
697	+	assertTrue(success.getCause() instanceof NullPointerException);
698		} finally {
699		joinPool(e);
700		}
#	Line 755 | Line 706 | public class ForkJoinPoolTest extends JS
706		public void testInvokeAny6() throws Throwable {
707		ExecutorService e = new ForkJoinPool(1);
708		try {
709	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
709	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
710		l.add(new StringTask());
711		l.add(new StringTask());
712		String result = e.invokeAny(l);
#	Line 798 | Line 749 | public class ForkJoinPoolTest extends JS
749		*/
750		public void testInvokeAll3() throws InterruptedException {
751		ExecutorService e = new ForkJoinPool(1);
752	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
753	+	l.add(new StringTask());
754	+	l.add(null);
755		try {
802	–	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
803	–	l.add(new StringTask());
804	–	l.add(null);
756		e.invokeAll(l);
757		shouldThrow();
758		} catch (NullPointerException success) {
#	Line 816 | Line 767 | public class ForkJoinPoolTest extends JS
767		*/
768		public void testInvokeAll4() throws Throwable {
769		ExecutorService e = new ForkJoinPool(1);
770	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
771	+	l.add(new NPETask());
772	+	List<Future<String>> futures = e.invokeAll(l);
773	+	assertEquals(1, futures.size());
774		try {
775	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
821	<	l.add(new NPETask());
822	<	List<Future<String>> result = e.invokeAll(l);
823	<	assertEquals(1, result.size());
824	<	for (Future<String> future : result)
825	<	future.get();
775	>	futures.get(0).get();
776		shouldThrow();
777		} catch (ExecutionException success) {
778	+	assertTrue(success.getCause() instanceof NullPointerException);
779		} finally {
780		joinPool(e);
781		}
#	Line 836 | Line 787 | public class ForkJoinPoolTest extends JS
787		public void testInvokeAll5() throws Throwable {
788		ExecutorService e = new ForkJoinPool(1);
789		try {
790	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
790	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
791		l.add(new StringTask());
792		l.add(new StringTask());
793	<	List<Future<String>> result = e.invokeAll(l);
794	<	assertEquals(2, result.size());
795	<	for (Future<String> future : result)
793	>	List<Future<String>> futures = e.invokeAll(l);
794	>	assertEquals(2, futures.size());
795	>	for (Future<String> future : futures)
796		assertSame(TEST_STRING, future.get());
797		} finally {
798		joinPool(e);
799		}
800		}
801
851	–
802		/**
803		* timed invokeAny(null) throws NullPointerException
804		*/
#	Line 868 | Line 818 | public class ForkJoinPoolTest extends JS
818		*/
819		public void testTimedInvokeAnyNullTimeUnit() throws Throwable {
820		ExecutorService e = new ForkJoinPool(1);
821	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
822	+	l.add(new StringTask());
823		try {
872	–	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
873	–	l.add(new StringTask());
824		e.invokeAny(l, MEDIUM_DELAY_MS, null);
825		shouldThrow();
826		} catch (NullPointerException success) {
#	Line 898 | Line 848 | public class ForkJoinPoolTest extends JS
848		* timed invokeAny(c) throws NullPointerException if c has null elements
849		*/
850		public void testTimedInvokeAny3() throws Throwable {
851	+	CountDownLatch latch = new CountDownLatch(1);
852		ExecutorService e = new ForkJoinPool(1);
853	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
854	+	l.add(latchAwaitingStringTask(latch));
855	+	l.add(null);
856		try {
903	–	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
904	–	l.add(new StringTask());
905	–	l.add(null);
857		e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
858		shouldThrow();
859		} catch (NullPointerException success) {
860		} finally {
861	+	latch.countDown();
862		joinPool(e);
863		}
864		}
#	Line 916 | Line 868 | public class ForkJoinPoolTest extends JS
868		*/
869		public void testTimedInvokeAny4() throws Throwable {
870		ExecutorService e = new ForkJoinPool(1);
871	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
872	+	l.add(new NPETask());
873		try {
920	–	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
921	–	l.add(new NPETask());
874		e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
875		shouldThrow();
876		} catch (ExecutionException success) {
877	+	assertTrue(success.getCause() instanceof NullPointerException);
878		} finally {
879		joinPool(e);
880		}
#	Line 933 | Line 886 | public class ForkJoinPoolTest extends JS
886		public void testTimedInvokeAny5() throws Throwable {
887		ExecutorService e = new ForkJoinPool(1);
888		try {
889	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
889	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
890		l.add(new StringTask());
891		l.add(new StringTask());
892		String result = e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
#	Line 962 | Line 915 | public class ForkJoinPoolTest extends JS
915		*/
916		public void testTimedInvokeAllNullTimeUnit() throws Throwable {
917		ExecutorService e = new ForkJoinPool(1);
918	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
919	+	l.add(new StringTask());
920		try {
966	–	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
967	–	l.add(new StringTask());
921		e.invokeAll(l, MEDIUM_DELAY_MS, null);
922		shouldThrow();
923		} catch (NullPointerException success) {
#	Line 993 | Line 946 | public class ForkJoinPoolTest extends JS
946		*/
947		public void testTimedInvokeAll3() throws InterruptedException {
948		ExecutorService e = new ForkJoinPool(1);
949	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
950	+	l.add(new StringTask());
951	+	l.add(null);
952		try {
997	–	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
998	–	l.add(new StringTask());
999	–	l.add(null);
953		e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
954		shouldThrow();
955		} catch (NullPointerException success) {
#	Line 1010 | Line 963 | public class ForkJoinPoolTest extends JS
963		*/
964		public void testTimedInvokeAll4() throws Throwable {
965		ExecutorService e = new ForkJoinPool(1);
966	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
967	+	l.add(new NPETask());
968	+	List<Future<String>> futures
969	+	= e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
970	+	assertEquals(1, futures.size());
971		try {
972	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1015	<	l.add(new NPETask());
1016	<	List<Future<String>> result
1017	<	= e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1018	<	assertEquals(1, result.size());
1019	<	for (Future<String> future : result)
1020	<	future.get();
972	>	futures.get(0).get();
973		shouldThrow();
974		} catch (ExecutionException success) {
975	+	assertTrue(success.getCause() instanceof NullPointerException);
976		} finally {
977		joinPool(e);
978		}
#	Line 1031 | Line 984 | public class ForkJoinPoolTest extends JS
984		public void testTimedInvokeAll5() throws Throwable {
985		ExecutorService e = new ForkJoinPool(1);
986		try {
987	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
987	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
988		l.add(new StringTask());
989		l.add(new StringTask());
990	<	List<Future<String>> result
990	>	List<Future<String>> futures
991		= e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
992	<	assertEquals(2, result.size());
993	<	for (Future<String> future : result)
992	>	assertEquals(2, futures.size());
993	>	for (Future<String> future : futures)
994		assertSame(TEST_STRING, future.get());
995		} finally {
996		joinPool(e);

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