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

Comparing jsr166/src/test/tck/ForkJoinPoolTest.java (file contents):
Revision 1.6 by jsr166, Mon Aug 3 22:08:07 2009 UTC vs.
Revision 1.53 by jsr166, Wed Dec 31 16:44:01 2014 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.CountDownLatch;
14	>	import java.util.concurrent.Callable;
15	>	import java.util.concurrent.Future;
16	>	import java.util.concurrent.ExecutionException;
17	>	import java.util.concurrent.RejectedExecutionException;
18	>	import java.util.concurrent.ForkJoinPool;
19	>	import java.util.concurrent.ForkJoinTask;
20	>	import java.util.concurrent.ForkJoinWorkerThread;
21	>	import java.util.concurrent.RecursiveTask;
22	>	import java.util.concurrent.atomic.AtomicBoolean;
23	>	import java.util.concurrent.locks.ReentrantLock;
24		import static java.util.concurrent.TimeUnit.MILLISECONDS;
25	<	import java.util.concurrent.locks.*;
26	<	import java.security.*;
25	>	import static java.util.concurrent.TimeUnit.NANOSECONDS;
26	>	import java.security.PrivilegedAction;
27	>	import java.security.PrivilegedExceptionAction;
28
29		public class ForkJoinPoolTest extends JSR166TestCase {
30		public static void main(String[] args) {
31	<	junit.textui.TestRunner.run (suite());
31	>	junit.textui.TestRunner.run(suite());
32		}
33	+
34		public static Test suite() {
35		return new TestSuite(ForkJoinPoolTest.class);
36		}
37
38	<	/**
38	>	/*
39		* Testing coverage notes:
40		*
41		* 1. shutdown and related methods are tested via super.joinPool.
#	Line 39 | Line 54 | public class ForkJoinPoolTest extends JS
54		// Some classes to test extension and factory methods
55
56		static class MyHandler implements Thread.UncaughtExceptionHandler {
57	<	int catches = 0;
57	>	volatile int catches = 0;
58		public void uncaughtException(Thread t, Throwable e) {
59		++catches;
60		}
#	Line 48 | Line 63 | public class ForkJoinPoolTest extends JS
63		// to test handlers
64		static class FailingFJWSubclass extends ForkJoinWorkerThread {
65		public FailingFJWSubclass(ForkJoinPool p) { super(p) ; }
66	<	protected void onStart() { throw new Error(); }
66	>	protected void onStart() { super.onStart(); throw new Error(); }
67		}
68
69		static class FailingThreadFactory
70		implements ForkJoinPool.ForkJoinWorkerThreadFactory {
71	<	int calls = 0;
71	>	volatile int calls = 0;
72		public ForkJoinWorkerThread newThread(ForkJoinPool p) {
73		if (++calls > 1) return null;
74		return new FailingFJWSubclass(p);
#	Line 88 | Line 103 | public class ForkJoinPoolTest extends JS
103		static final class FibTask extends RecursiveTask<Integer> {
104		final int number;
105		FibTask(int n) { number = n; }
106	<	public Integer compute() {
106	>	protected Integer compute() {
107		int n = number;
108		if (n <= 1)
109		return n;
#	Line 116 | Line 131 | public class ForkJoinPoolTest extends JS
131		this.locker = locker;
132		this.lock = lock;
133		}
134	<	public Integer compute() {
134	>	protected Integer compute() {
135		int n;
136		LockingFibTask f1 = null;
137		LockingFibTask f2 = null;
#	Line 142 | Line 157 | public class ForkJoinPoolTest extends JS
157		* tasks, and quiescent running state.
158		*/
159		public void testDefaultInitialState() {
160	<	ForkJoinPool p = null;
160	>	ForkJoinPool p = new ForkJoinPool(1);
161		try {
162	<	p = new ForkJoinPool(1);
163	<	assertTrue(p.getFactory() ==
149	<	ForkJoinPool.defaultForkJoinWorkerThreadFactory);
150	<	assertTrue(p.isQuiescent());
151	<	assertTrue(p.getMaintainsParallelism());
162	>	assertSame(ForkJoinPool.defaultForkJoinWorkerThreadFactory,
163	>	p.getFactory());
164		assertFalse(p.getAsyncMode());
165	<	assertTrue(p.getActiveThreadCount() == 0);
166	<	assertTrue(p.getStealCount() == 0);
167	<	assertTrue(p.getQueuedTaskCount() == 0);
168	<	assertTrue(p.getQueuedSubmissionCount() == 0);
165	>	assertEquals(0, p.getActiveThreadCount());
166	>	assertEquals(0, p.getStealCount());
167	>	assertEquals(0, p.getQueuedTaskCount());
168	>	assertEquals(0, p.getQueuedSubmissionCount());
169		assertFalse(p.hasQueuedSubmissions());
170		assertFalse(p.isShutdown());
171		assertFalse(p.isTerminating());
#	Line 170 | Line 182 | public class ForkJoinPoolTest extends JS
182		try {
183		new ForkJoinPool(-1);
184		shouldThrow();
185	<	}
174	<	catch (IllegalArgumentException success) {}
185	>	} catch (IllegalArgumentException success) {}
186		}
187
188		/**
#	Line 179 | Line 190 | public class ForkJoinPoolTest extends JS
190		*/
191		public void testConstructor2() {
192		try {
193	<	new ForkJoinPool(1, null);
193	>	new ForkJoinPool(1, null, null, false);
194		shouldThrow();
195	<	} catch (NullPointerException success) {
185	<	}
195	>	} catch (NullPointerException success) {}
196		}
197
188	–
198		/**
199		* getParallelism returns size set in constructor
200		*/
201		public void testGetParallelism() {
202	<	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;
202	>	ForkJoinPool p = new ForkJoinPool(1);
203		try {
204	<	p = new ForkJoinPool(1);
224	<	assertTrue(p.getParallelism() == 1);
225	<	p.setParallelism(-2);
226	<	shouldThrow();
227	<	} catch (IllegalArgumentException success) {
204	>	assertEquals(1, p.getParallelism());
205		} finally {
206		joinPool(p);
207		}
#	Line 234 | Line 211 | public class ForkJoinPoolTest extends JS
211		* getPoolSize returns number of started workers.
212		*/
213		public void testGetPoolSize() {
214	<	ForkJoinPool p = null;
214	>	ForkJoinPool p = new ForkJoinPool(1);
215		try {
216	<	p = new ForkJoinPool(1);
240	<	assertTrue(p.getPoolSize() == 0);
216	>	assertEquals(0, p.getActiveThreadCount());
217		Future<String> future = p.submit(new StringTask());
218	<	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) {
218	>	assertEquals(1, p.getPoolSize());
219		} finally {
220		joinPool(p);
221		}
222		}
223
224		/**
225	<	* setMaintainsParallelism changes policy reported by
280	<	* getMaintainsParallelism.
225	>	* awaitTermination on a non-shutdown pool times out
226		*/
227	<	public void testSetMaintainsParallelism() {
228	<	ForkJoinPool p = null;
229	<	try {
230	<	p = new ForkJoinPool(1);
231	<	p.setMaintainsParallelism(false);
232	<	assertFalse(p.getMaintainsParallelism());
233	<	} finally {
234	<	joinPool(p);
235	<	}
236	<	}
237	<
238	<	/**
239	<	* setAsyncMode changes policy reported by
240	<	* getAsyncMode.
241	<	*/
242	<	public void testSetAsyncMode() {
243	<	ForkJoinPool p = null;
244	<	try {
245	<	p = new ForkJoinPool(1);
246	<	p.setAsyncMode(true);
247	<	assertTrue(p.getAsyncMode());
248	<	} finally {
304	<	joinPool(p);
305	<	}
227	>	public void testAwaitTermination_timesOut() throws InterruptedException {
228	>	ForkJoinPool p = new ForkJoinPool(1);
229	>	assertFalse(p.isTerminated());
230	>	assertFalse(p.awaitTermination(Long.MIN_VALUE, NANOSECONDS));
231	>	assertFalse(p.awaitTermination(Long.MIN_VALUE, MILLISECONDS));
232	>	assertFalse(p.awaitTermination(-1L, NANOSECONDS));
233	>	assertFalse(p.awaitTermination(-1L, MILLISECONDS));
234	>	assertFalse(p.awaitTermination(0L, NANOSECONDS));
235	>	assertFalse(p.awaitTermination(0L, MILLISECONDS));
236	>	long timeoutNanos = 999999L;
237	>	long startTime = System.nanoTime();
238	>	assertFalse(p.awaitTermination(timeoutNanos, NANOSECONDS));
239	>	assertTrue(System.nanoTime() - startTime >= timeoutNanos);
240	>	assertFalse(p.isTerminated());
241	>	startTime = System.nanoTime();
242	>	long timeoutMillis = timeoutMillis();
243	>	assertFalse(p.awaitTermination(timeoutMillis, MILLISECONDS));
244	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
245	>	assertFalse(p.isTerminated());
246	>	p.shutdown();
247	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
248	>	assertTrue(p.isTerminated());
249		}
250
251		/**
#	Line 312 | Line 255 | public class ForkJoinPoolTest extends JS
255		* performs its defined action
256		*/
257		public void testSetUncaughtExceptionHandler() throws InterruptedException {
258	<	ForkJoinPool p = null;
259	<	try {
260	<	p = new ForkJoinPool(1, new FailingThreadFactory());
261	<	MyHandler eh = new MyHandler();
262	<	p.setUncaughtExceptionHandler(eh);
263	<	assertEquals(eh, p.getUncaughtExceptionHandler());
264	<	p.execute(new FailingTask());
265	<	Thread.sleep(MEDIUM_DELAY_MS);
266	<	assertTrue(eh.catches > 0);
258	>	final CountDownLatch uehInvoked = new CountDownLatch(1);
259	>	final Thread.UncaughtExceptionHandler eh =
260	>	new Thread.UncaughtExceptionHandler() {
261	>	public void uncaughtException(Thread t, Throwable e) {
262	>	uehInvoked.countDown();
263	>	}};
264	>	ForkJoinPool p = new ForkJoinPool(1, new FailingThreadFactory(),
265	>	eh, false);
266	>	try {
267	>	assertSame(eh, p.getUncaughtExceptionHandler());
268	>	try {
269	>	p.execute(new FibTask(8));
270	>	assertTrue(uehInvoked.await(MEDIUM_DELAY_MS, MILLISECONDS));
271	>	} catch (RejectedExecutionException ok) {
272	>	}
273		} finally {
274	+	p.shutdownNow(); // failure might have prevented processing task
275		joinPool(p);
276		}
277		}
278
279		/**
280	<	* setUncaughtExceptionHandler of null removes handler
280	>	* After invoking a single task, isQuiescent eventually becomes
281	>	* true, at which time queues are empty, threads are not active,
282	>	* the task has completed successfully, and construction
283	>	* parameters continue to hold
284		*/
285	<	public void testSetUncaughtExceptionHandler2() {
286	<	ForkJoinPool p = null;
285	>	public void testIsQuiescent() throws Exception {
286	>	ForkJoinPool p = new ForkJoinPool(2);
287		try {
288	<	p = new ForkJoinPool(1);
289	<	p.setUncaughtExceptionHandler(null);
290	<	assertNull(p.getUncaughtExceptionHandler());
291	<	} finally {
292	<	joinPool(p);
293	<	}
294	<	}
295	<
288	>	assertTrue(p.isQuiescent());
289	>	long startTime = System.nanoTime();
290	>	FibTask f = new FibTask(20);
291	>	p.invoke(f);
292	>	assertSame(ForkJoinPool.defaultForkJoinWorkerThreadFactory,
293	>	p.getFactory());
294	>	while (! p.isQuiescent()) {
295	>	if (millisElapsedSince(startTime) > LONG_DELAY_MS)
296	>	throw new AssertionFailedError("timed out");
297	>	assertFalse(p.getAsyncMode());
298	>	assertFalse(p.isShutdown());
299	>	assertFalse(p.isTerminating());
300	>	assertFalse(p.isTerminated());
301	>	Thread.yield();
302	>	}
303
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);
304		assertTrue(p.isQuiescent());
358	–	assertTrue(p.getMaintainsParallelism());
305		assertFalse(p.getAsyncMode());
306	<	assertTrue(p.getActiveThreadCount() == 0);
307	<	assertTrue(p.getQueuedTaskCount() == 0);
308	<	assertTrue(p.getQueuedSubmissionCount() == 0);
306	>	assertEquals(0, p.getActiveThreadCount());
307	>	assertEquals(0, p.getQueuedTaskCount());
308	>	assertEquals(0, p.getQueuedSubmissionCount());
309		assertFalse(p.hasQueuedSubmissions());
310		assertFalse(p.isShutdown());
311		assertFalse(p.isTerminating());
312		assertFalse(p.isTerminated());
313	+	assertTrue(f.isDone());
314	+	assertEquals(6765, (int) f.get());
315		} finally {
316		joinPool(p);
317		}
#	Line 373 | Line 321 | public class ForkJoinPoolTest extends JS
321		* Completed submit(ForkJoinTask) returns result
322		*/
323		public void testSubmitForkJoinTask() throws Throwable {
324	<	ForkJoinPool p = null;
324	>	ForkJoinPool p = new ForkJoinPool(1);
325		try {
378	–	p = new ForkJoinPool(1);
326		ForkJoinTask<Integer> f = p.submit(new FibTask(8));
327	<	int r = f.get();
381	<	assertTrue(r == 21);
327	>	assertEquals(21, (int) f.get());
328		} finally {
329		joinPool(p);
330		}
#	Line 388 | Line 334 | public class ForkJoinPoolTest extends JS
334		* A task submitted after shutdown is rejected
335		*/
336		public void testSubmitAfterShutdown() {
337	<	ForkJoinPool p = null;
337	>	ForkJoinPool p = new ForkJoinPool(1);
338		try {
393	–	p = new ForkJoinPool(1);
339		p.shutdown();
340		assertTrue(p.isShutdown());
341	<	ForkJoinTask<Integer> f = p.submit(new FibTask(8));
342	<	shouldThrow();
343	<	} catch (RejectedExecutionException success) {
341	>	try {
342	>	ForkJoinTask<Integer> f = p.submit(new FibTask(8));
343	>	shouldThrow();
344	>	} catch (RejectedExecutionException success) {}
345		} finally {
346		joinPool(p);
347		}
#	Line 405 | Line 351 | public class ForkJoinPoolTest extends JS
351		* Pool maintains parallelism when using ManagedBlocker
352		*/
353		public void testBlockingForkJoinTask() throws Throwable {
354	<	ForkJoinPool p = null;
354	>	ForkJoinPool p = new ForkJoinPool(4);
355		try {
410	–	p = new ForkJoinPool(4);
356		ReentrantLock lock = new ReentrantLock();
357		ManagedLocker locker = new ManagedLocker(lock);
358	<	ForkJoinTask<Integer> f = new LockingFibTask(30, locker, lock);
358	>	ForkJoinTask<Integer> f = new LockingFibTask(20, locker, lock);
359		p.execute(f);
360	<	assertTrue(p.getPoolSize() >= 4);
416	<	int r = f.get();
417	<	assertTrue(r ==  832040);
360	>	assertEquals(6765, (int) f.get());
361		} finally {
362	<	joinPool(p);
362	>	p.shutdownNow(); // don't wait out shutdown
363		}
364		}
365
#	Line 424 | Line 367 | public class ForkJoinPoolTest extends JS
367		* pollSubmission returns unexecuted submitted task, if present
368		*/
369		public void testPollSubmission() {
370	<	SubFJP p = null;
370	>	final CountDownLatch done = new CountDownLatch(1);
371	>	SubFJP p = new SubFJP();
372		try {
373	<	p = new SubFJP();
374	<	ForkJoinTask a = p.submit(new MediumRunnable());
375	<	ForkJoinTask b = p.submit(new MediumRunnable());
432	<	ForkJoinTask c = p.submit(new MediumRunnable());
373	>	ForkJoinTask a = p.submit(awaiter(done));
374	>	ForkJoinTask b = p.submit(awaiter(done));
375	>	ForkJoinTask c = p.submit(awaiter(done));
376		ForkJoinTask r = p.pollSubmission();
377		assertTrue(r == a || r == b || r == c);
378		assertFalse(r.isDone());
379		} finally {
380	+	done.countDown();
381		joinPool(p);
382		}
383		}
#	Line 442 | Line 386 | public class ForkJoinPoolTest extends JS
386		* drainTasksTo transfers unexecuted submitted tasks, if present
387		*/
388		public void testDrainTasksTo() {
389	<	SubFJP p = null;
389	>	final CountDownLatch done = new CountDownLatch(1);
390	>	SubFJP p = new SubFJP();
391		try {
392	<	p = new SubFJP();
393	<	ForkJoinTask a = p.submit(new MediumRunnable());
394	<	ForkJoinTask b = p.submit(new MediumRunnable());
450	<	ForkJoinTask c = p.submit(new MediumRunnable());
392	>	ForkJoinTask a = p.submit(awaiter(done));
393	>	ForkJoinTask b = p.submit(awaiter(done));
394	>	ForkJoinTask c = p.submit(awaiter(done));
395		ArrayList<ForkJoinTask> al = new ArrayList();
396		p.drainTasksTo(al);
397		assertTrue(al.size() > 0);
#	Line 456 | Line 400 | public class ForkJoinPoolTest extends JS
400		assertFalse(r.isDone());
401		}
402		} finally {
403	+	done.countDown();
404		joinPool(p);
405		}
406		}
407
463	–
408		// FJ Versions of AbstractExecutorService tests
409
410		/**
#	Line 468 | Line 412 | public class ForkJoinPoolTest extends JS
412		*/
413		public void testExecuteRunnable() throws Throwable {
414		ExecutorService e = new ForkJoinPool(1);
415	<	TrackedShortRunnable task = new TrackedShortRunnable();
416	<	assertFalse(task.done);
417	<	Future<?> future = e.submit(task);
418	<	future.get();
419	<	assertTrue(task.done);
415	>	try {
416	>	final AtomicBoolean done = new AtomicBoolean(false);
417	>	Future<?> future = e.submit(new CheckedRunnable() {
418	>	public void realRun() {
419	>	done.set(true);
420	>	}});
421	>	assertNull(future.get());
422	>	assertNull(future.get(0, MILLISECONDS));
423	>	assertTrue(done.get());
424	>	assertTrue(future.isDone());
425	>	assertFalse(future.isCancelled());
426	>	} finally {
427	>	joinPool(e);
428	>	}
429		}
430
478	–
431		/**
432		* Completed submit(callable) returns result
433		*/
434		public void testSubmitCallable() throws Throwable {
435		ExecutorService e = new ForkJoinPool(1);
436	<	Future<String> future = e.submit(new StringTask());
437	<	String result = future.get();
438	<	assertSame(TEST_STRING, result);
436	>	try {
437	>	Future<String> future = e.submit(new StringTask());
438	>	assertSame(TEST_STRING, future.get());
439	>	assertTrue(future.isDone());
440	>	assertFalse(future.isCancelled());
441	>	} finally {
442	>	joinPool(e);
443	>	}
444		}
445
446		/**
#	Line 491 | Line 448 | public class ForkJoinPoolTest extends JS
448		*/
449		public void testSubmitRunnable() throws Throwable {
450		ExecutorService e = new ForkJoinPool(1);
451	<	Future<?> future = e.submit(new NoOpRunnable());
452	<	future.get();
453	<	assertTrue(future.isDone());
451	>	try {
452	>	Future<?> future = e.submit(new NoOpRunnable());
453	>	assertNull(future.get());
454	>	assertTrue(future.isDone());
455	>	assertFalse(future.isCancelled());
456	>	} finally {
457	>	joinPool(e);
458	>	}
459		}
460
461		/**
#	Line 501 | Line 463 | public class ForkJoinPoolTest extends JS
463		*/
464		public void testSubmitRunnable2() throws Throwable {
465		ExecutorService e = new ForkJoinPool(1);
466	<	Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING);
467	<	String result = future.get();
468	<	assertSame(TEST_STRING, result);
466	>	try {
467	>	Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING);
468	>	assertSame(TEST_STRING, future.get());
469	>	assertTrue(future.isDone());
470	>	assertFalse(future.isCancelled());
471	>	} finally {
472	>	joinPool(e);
473	>	}
474		}
475
509	–
476		/**
477	<	* A submitted privileged action to completion
477	>	* A submitted privileged action runs to completion
478		*/
479	<	public void testSubmitPrivilegedAction() throws Throwable {
480	<	Policy savedPolicy = null;
481	<	try {
482	<	savedPolicy = Policy.getPolicy();
483	<	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 {
479	>	public void testSubmitPrivilegedAction() throws Exception {
480	>	final Callable callable = Executors.callable(new PrivilegedAction() {
481	>	public Object run() { return TEST_STRING; }});
482	>	Runnable r = new CheckedRunnable() {
483	>	public void realRun() throws Exception {
484		ExecutorService e = new ForkJoinPool(1);
485	<	Future future = e.submit(Executors.callable(new PrivilegedAction() {
486	<	public Object run() {
487	<	return TEST_STRING;
488	<	}}));
485	>	try {
486	>	Future future = e.submit(callable);
487	>	assertSame(TEST_STRING, future.get());
488	>	} finally {
489	>	joinPool(e);
490	>	}
491	>	}};
492
493	<	Object result = future.get();
532	<	assertSame(TEST_STRING, result);
533	<	}
534	<	finally {
535	<	Policy.setPolicy(savedPolicy);
536	<	}
493	>	runWithPermissions(r, new RuntimePermission("modifyThread"));
494		}
495
496		/**
497	<	* A submitted a privileged exception action runs to completion
497	>	* A submitted privileged exception action runs to completion
498		*/
499	<	public void testSubmitPrivilegedExceptionAction() throws Throwable {
500	<	Policy savedPolicy = null;
501	<	try {
502	<	savedPolicy = Policy.getPolicy();
503	<	AdjustablePolicy policy = new AdjustablePolicy();
504	<	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 {
499	>	public void testSubmitPrivilegedExceptionAction() throws Exception {
500	>	final Callable callable =
501	>	Executors.callable(new PrivilegedExceptionAction() {
502	>	public Object run() { return TEST_STRING; }});
503	>	Runnable r = new CheckedRunnable() {
504	>	public void realRun() throws Exception {
505		ExecutorService e = new ForkJoinPool(1);
506	<	Future future = e.submit(Executors.callable(new PrivilegedExceptionAction() {
507	<	public Object run() {
508	<	return TEST_STRING;
509	<	}}));
506	>	try {
507	>	Future future = e.submit(callable);
508	>	assertSame(TEST_STRING, future.get());
509	>	} finally {
510	>	joinPool(e);
511	>	}
512	>	}};
513
514	<	Object result = future.get();
562	<	assertSame(TEST_STRING, result);
563	<	}
564	<	finally {
565	<	Policy.setPolicy(savedPolicy);
566	<	}
514	>	runWithPermissions(r, new RuntimePermission("modifyThread"));
515		}
516
517		/**
518		* A submitted failed privileged exception action reports exception
519		*/
520	<	public void testSubmitFailedPrivilegedExceptionAction() throws Throwable {
521	<	Policy savedPolicy = null;
522	<	try {
523	<	savedPolicy = Policy.getPolicy();
524	<	AdjustablePolicy policy = new AdjustablePolicy();
525	<	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 {
520	>	public void testSubmitFailedPrivilegedExceptionAction() throws Exception {
521	>	final Callable callable =
522	>	Executors.callable(new PrivilegedExceptionAction() {
523	>	public Object run() { throw new IndexOutOfBoundsException(); }});
524	>	Runnable r = new CheckedRunnable() {
525	>	public void realRun() throws Exception {
526		ExecutorService e = new ForkJoinPool(1);
527	<	Future future = e.submit(Executors.callable(new PrivilegedExceptionAction() {
528	<	public Object run() throws Exception {
529	<	throw new IndexOutOfBoundsException();
530	<	}}));
527	>	try {
528	>	Future future = e.submit(callable);
529	>	try {
530	>	future.get();
531	>	shouldThrow();
532	>	} catch (ExecutionException success) {
533	>	assertTrue(success.getCause() instanceof IndexOutOfBoundsException);
534	>	}
535	>	} finally {
536	>	joinPool(e);
537	>	}
538	>	}};
539
540	<	Object result = future.get();
593	<	shouldThrow();
594	<	} catch (ExecutionException success) {
595	<	} finally {
596	<	Policy.setPolicy(savedPolicy);
597	<	}
540	>	runWithPermissions(r, new RuntimePermission("modifyThread"));
541		}
542
543		/**
544		* execute(null runnable) throws NullPointerException
545		*/
546		public void testExecuteNullRunnable() {
547	+	ExecutorService e = new ForkJoinPool(1);
548		try {
549	<	ExecutorService e = new ForkJoinPool(1);
606	<	TrackedShortRunnable task = null;
607	<	Future<?> future = e.submit(task);
549	>	Future<?> future = e.submit((Runnable) null);
550		shouldThrow();
551		} catch (NullPointerException success) {
552	+	} finally {
553	+	joinPool(e);
554		}
555		}
556
613	–
557		/**
558		* submit(null callable) throws NullPointerException
559		*/
560		public void testSubmitNullCallable() {
561	+	ExecutorService e = new ForkJoinPool(1);
562		try {
563	<	ExecutorService e = new ForkJoinPool(1);
620	<	StringTask t = null;
621	<	Future<String> future = e.submit(t);
563	>	Future<String> future = e.submit((Callable) null);
564		shouldThrow();
565		} catch (NullPointerException success) {
566	+	} finally {
567	+	joinPool(e);
568		}
569		}
570
627	–
571		/**
572	<	* Blocking on submit(callable) throws InterruptedException if
630	<	* caller interrupted.
572	>	* submit(callable).get() throws InterruptedException if interrupted
573		*/
574		public void testInterruptedSubmit() throws InterruptedException {
575	<	final ForkJoinPool p = new ForkJoinPool(1);
576	<
577	<	Thread t = new Thread(new CheckedInterruptedRunnable() {
578	<	void realRun() throws Throwable {
579	<	p.submit(new CheckedCallable<Object>() {
580	<	public Object realCall() throws Throwable {
581	<	Thread.sleep(MEDIUM_DELAY_MS);
582	<	return null;
583	<	}}).get();
584	<	}});
585	<
586	<	t.start();
587	<	Thread.sleep(SHORT_DELAY_MS);
588	<	t.interrupt();
589	<	joinPool(p);
575	>	final CountDownLatch submitted    = new CountDownLatch(1);
576	>	final CountDownLatch quittingTime = new CountDownLatch(1);
577	>	final ExecutorService p = new ForkJoinPool(1);
578	>	final Callable<Void> awaiter = new CheckedCallable<Void>() {
579	>	public Void realCall() throws InterruptedException {
580	>	assertTrue(quittingTime.await(MEDIUM_DELAY_MS, MILLISECONDS));
581	>	return null;
582	>	}};
583	>	try {
584	>	Thread t = new Thread(new CheckedInterruptedRunnable() {
585	>	public void realRun() throws Exception {
586	>	Future<Void> future = p.submit(awaiter);
587	>	submitted.countDown();
588	>	future.get();
589	>	}});
590	>	t.start();
591	>	assertTrue(submitted.await(MEDIUM_DELAY_MS, MILLISECONDS));
592	>	t.interrupt();
593	>	t.join();
594	>	} finally {
595	>	quittingTime.countDown();
596	>	joinPool(p);
597	>	}
598		}
599
600		/**
#	Line 653 | Line 603 | public class ForkJoinPoolTest extends JS
603		*/
604		public void testSubmitEE() throws Throwable {
605		ForkJoinPool p = new ForkJoinPool(1);
656	–
606		try {
607	<	Callable c = new Callable() {
608	<	public Object call() {
609	<	int i = 5/0;
661	<	return Boolean.TRUE;
662	<	}
663	<	};
664	<
665	<	for (int i = 0; i < 5; i++) {
666	<	p.submit(c).get();
667	<	}
607	>	p.submit(new Callable() {
608	>	public Object call() { throw new ArithmeticException(); }})
609	>	.get();
610		shouldThrow();
611		} catch (ExecutionException success) {
612	+	assertTrue(success.getCause() instanceof ArithmeticException);
613	+	} finally {
614	+	joinPool(p);
615		}
671	–	joinPool(p);
616		}
617
618		/**
#	Line 700 | Line 644 | public class ForkJoinPoolTest extends JS
644		}
645
646		/**
647	<	* invokeAny(c) throws NullPointerException if c has null elements
647	>	* invokeAny(c) throws NullPointerException if c has a single null element
648		*/
649		public void testInvokeAny3() throws Throwable {
650		ExecutorService e = new ForkJoinPool(1);
651	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
652	+	l.add(null);
653		try {
708	–	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
709	–	l.add(new StringTask());
710	–	l.add(null);
654		e.invokeAny(l);
655		shouldThrow();
656		} catch (NullPointerException success) {
#	Line 717 | Line 660 | public class ForkJoinPoolTest extends JS
660		}
661
662		/**
663	<	* invokeAny(c) throws ExecutionException if no task in c completes
663	>	* invokeAny(c) throws NullPointerException if c has null elements
664		*/
665		public void testInvokeAny4() throws Throwable {
666	+	CountDownLatch latch = new CountDownLatch(1);
667		ExecutorService e = new ForkJoinPool(1);
668	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
669	+	l.add(latchAwaitingStringTask(latch));
670	+	l.add(null);
671	+	try {
672	+	e.invokeAny(l);
673	+	shouldThrow();
674	+	} catch (NullPointerException success) {
675	+	} finally {
676	+	latch.countDown();
677	+	joinPool(e);
678	+	}
679	+	}
680	+
681	+	/**
682	+	* invokeAny(c) throws ExecutionException if no task in c completes
683	+	*/
684	+	public void testInvokeAny5() throws Throwable {
685	+	ExecutorService e = new ForkJoinPool(1);
686	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
687	+	l.add(new NPETask());
688		try {
725	–	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
726	–	l.add(new NPETask());
689		e.invokeAny(l);
690		shouldThrow();
691		} catch (ExecutionException success) {
692	+	assertTrue(success.getCause() instanceof NullPointerException);
693		} finally {
694		joinPool(e);
695		}
#	Line 735 | Line 698 | public class ForkJoinPoolTest extends JS
698		/**
699		* invokeAny(c) returns result of some task in c if at least one completes
700		*/
701	<	public void testInvokeAny5() throws Throwable {
701	>	public void testInvokeAny6() throws Throwable {
702		ExecutorService e = new ForkJoinPool(1);
703		try {
704	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
704	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
705		l.add(new StringTask());
706		l.add(new StringTask());
707		String result = e.invokeAny(l);
#	Line 781 | Line 744 | public class ForkJoinPoolTest extends JS
744		*/
745		public void testInvokeAll3() throws InterruptedException {
746		ExecutorService e = new ForkJoinPool(1);
747	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
748	+	l.add(new StringTask());
749	+	l.add(null);
750		try {
785	–	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
786	–	l.add(new StringTask());
787	–	l.add(null);
751		e.invokeAll(l);
752		shouldThrow();
753		} catch (NullPointerException success) {
#	Line 799 | Line 762 | public class ForkJoinPoolTest extends JS
762		*/
763		public void testInvokeAll4() throws Throwable {
764		ExecutorService e = new ForkJoinPool(1);
765	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
766	+	l.add(new NPETask());
767	+	List<Future<String>> futures = e.invokeAll(l);
768	+	assertEquals(1, futures.size());
769		try {
770	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
804	<	l.add(new NPETask());
805	<	List<Future<String>> result = e.invokeAll(l);
806	<	assertEquals(1, result.size());
807	<	for (Future<String> future : result)
808	<	future.get();
770	>	futures.get(0).get();
771		shouldThrow();
772		} catch (ExecutionException success) {
773	+	assertTrue(success.getCause() instanceof NullPointerException);
774		} finally {
775		joinPool(e);
776		}
#	Line 819 | Line 782 | public class ForkJoinPoolTest extends JS
782		public void testInvokeAll5() throws Throwable {
783		ExecutorService e = new ForkJoinPool(1);
784		try {
785	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
785	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
786		l.add(new StringTask());
787		l.add(new StringTask());
788	<	List<Future<String>> result = e.invokeAll(l);
789	<	assertEquals(2, result.size());
790	<	for (Future<String> future : result)
788	>	List<Future<String>> futures = e.invokeAll(l);
789	>	assertEquals(2, futures.size());
790	>	for (Future<String> future : futures)
791		assertSame(TEST_STRING, future.get());
792		} finally {
793		joinPool(e);
794		}
795		}
796
834	–
797		/**
798		* timed invokeAny(null) throws NullPointerException
799		*/
#	Line 851 | Line 813 | public class ForkJoinPoolTest extends JS
813		*/
814		public void testTimedInvokeAnyNullTimeUnit() throws Throwable {
815		ExecutorService e = new ForkJoinPool(1);
816	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
817	+	l.add(new StringTask());
818		try {
855	–	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
856	–	l.add(new StringTask());
819		e.invokeAny(l, MEDIUM_DELAY_MS, null);
820		shouldThrow();
821		} catch (NullPointerException success) {
#	Line 881 | Line 843 | public class ForkJoinPoolTest extends JS
843		* timed invokeAny(c) throws NullPointerException if c has null elements
844		*/
845		public void testTimedInvokeAny3() throws Throwable {
846	+	CountDownLatch latch = new CountDownLatch(1);
847		ExecutorService e = new ForkJoinPool(1);
848	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
849	+	l.add(latchAwaitingStringTask(latch));
850	+	l.add(null);
851		try {
886	–	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
887	–	l.add(new StringTask());
888	–	l.add(null);
852		e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
853		shouldThrow();
854		} catch (NullPointerException success) {
855		} finally {
856	+	latch.countDown();
857		joinPool(e);
858		}
859		}
#	Line 899 | Line 863 | public class ForkJoinPoolTest extends JS
863		*/
864		public void testTimedInvokeAny4() throws Throwable {
865		ExecutorService e = new ForkJoinPool(1);
866	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
867	+	l.add(new NPETask());
868		try {
903	–	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
904	–	l.add(new NPETask());
869		e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
870		shouldThrow();
871		} catch (ExecutionException success) {
872	+	assertTrue(success.getCause() instanceof NullPointerException);
873		} finally {
874		joinPool(e);
875		}
#	Line 916 | Line 881 | public class ForkJoinPoolTest extends JS
881		public void testTimedInvokeAny5() throws Throwable {
882		ExecutorService e = new ForkJoinPool(1);
883		try {
884	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
884	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
885		l.add(new StringTask());
886		l.add(new StringTask());
887		String result = e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
#	Line 945 | Line 910 | public class ForkJoinPoolTest extends JS
910		*/
911		public void testTimedInvokeAllNullTimeUnit() throws Throwable {
912		ExecutorService e = new ForkJoinPool(1);
913	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
914	+	l.add(new StringTask());
915		try {
949	–	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
950	–	l.add(new StringTask());
916		e.invokeAll(l, MEDIUM_DELAY_MS, null);
917		shouldThrow();
918		} catch (NullPointerException success) {
#	Line 976 | Line 941 | public class ForkJoinPoolTest extends JS
941		*/
942		public void testTimedInvokeAll3() throws InterruptedException {
943		ExecutorService e = new ForkJoinPool(1);
944	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
945	+	l.add(new StringTask());
946	+	l.add(null);
947		try {
980	–	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
981	–	l.add(new StringTask());
982	–	l.add(null);
948		e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
949		shouldThrow();
950		} catch (NullPointerException success) {
#	Line 993 | Line 958 | public class ForkJoinPoolTest extends JS
958		*/
959		public void testTimedInvokeAll4() throws Throwable {
960		ExecutorService e = new ForkJoinPool(1);
961	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
962	+	l.add(new NPETask());
963	+	List<Future<String>> futures
964	+	= e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
965	+	assertEquals(1, futures.size());
966		try {
967	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
998	<	l.add(new NPETask());
999	<	List<Future<String>> result
1000	<	= e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1001	<	assertEquals(1, result.size());
1002	<	for (Future<String> future : result)
1003	<	future.get();
967	>	futures.get(0).get();
968		shouldThrow();
969		} catch (ExecutionException success) {
970	+	assertTrue(success.getCause() instanceof NullPointerException);
971		} finally {
972		joinPool(e);
973		}
#	Line 1014 | Line 979 | public class ForkJoinPoolTest extends JS
979		public void testTimedInvokeAll5() throws Throwable {
980		ExecutorService e = new ForkJoinPool(1);
981		try {
982	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
982	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
983		l.add(new StringTask());
984		l.add(new StringTask());
985	<	List<Future<String>> result
985	>	List<Future<String>> futures
986		= e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
987	<	assertEquals(2, result.size());
988	<	for (Future<String> future : result)
987	>	assertEquals(2, futures.size());
988	>	for (Future<String> future : futures)
989		assertSame(TEST_STRING, future.get());
990		} finally {
991		joinPool(e);

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