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

Comparing jsr166/src/test/tck/ForkJoinPoolTest.java (file contents):
Revision 1.1 by dl, Fri Jul 31 23:02:49 2009 UTC vs.
Revision 1.75 by jsr166, Mon May 29 22:44:27 2017 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	+	import static java.util.concurrent.TimeUnit.MILLISECONDS;
8	+	import static java.util.concurrent.TimeUnit.NANOSECONDS;
9
10	<	import junit.framework.*;
11	<	import java.util.*;
12	<	import java.util.concurrent.*;
13	<	import java.util.concurrent.locks.*;
14	<	import java.security.*;
10	>	import java.security.PrivilegedAction;
11	>	import java.security.PrivilegedExceptionAction;
12	>	import java.util.ArrayList;
13	>	import java.util.Collection;
14	>	import java.util.Collections;
15	>	import java.util.List;
16	>	import java.util.concurrent.Callable;
17	>	import java.util.concurrent.CountDownLatch;
18	>	import java.util.concurrent.ExecutionException;
19	>	import java.util.concurrent.Executors;
20	>	import java.util.concurrent.ExecutorService;
21	>	import java.util.concurrent.ForkJoinPool;
22	>	import java.util.concurrent.ForkJoinTask;
23	>	import java.util.concurrent.ForkJoinWorkerThread;
24	>	import java.util.concurrent.Future;
25	>	import java.util.concurrent.RecursiveTask;
26	>	import java.util.concurrent.RejectedExecutionException;
27	>	import java.util.concurrent.atomic.AtomicBoolean;
28	>	import java.util.concurrent.atomic.AtomicInteger;
29	>	import java.util.concurrent.locks.ReentrantLock;
30	>
31	>	import junit.framework.AssertionFailedError;
32	>	import junit.framework.Test;
33	>	import junit.framework.TestSuite;
34
35	<	public class ForkJoinPoolTest extends JSR166TestCase{
35	>	public class ForkJoinPoolTest extends JSR166TestCase {
36		public static void main(String[] args) {
37	<	junit.textui.TestRunner.run (suite());
37	>	main(suite(), args);
38		}
39	+
40		public static Test suite() {
41		return new TestSuite(ForkJoinPoolTest.class);
42		}
43
44	<	/**
44	>	/*
45		* Testing coverage notes:
46		*
47		* 1. shutdown and related methods are tested via super.joinPool.
48		*
49		* 2. newTaskFor and adapters are tested in submit/invoke tests
50	<	*
50	>	*
51		* 3. We cannot portably test monitoring methods such as
52		* getStealCount() since they rely ultimately on random task
53		* stealing that may cause tasks not to be stolen/propagated
54		* across threads, especially on uniprocessors.
55	<	*
55	>	*
56		* 4. There are no independently testable ForkJoinWorkerThread
57		* methods, but they are covered here and in task tests.
58		*/
59
60		// Some classes to test extension and factory methods
61
62	<	static class MyHandler implements Thread.UncaughtExceptionHandler {
41	<	int catches = 0;
42	<	public void uncaughtException(Thread t, Throwable e) {
43	<	++catches;
44	<	}
45	<	}
62	>	static class MyError extends Error {}
63
64		// to test handlers
65		static class FailingFJWSubclass extends ForkJoinWorkerThread {
66		public FailingFJWSubclass(ForkJoinPool p) { super(p) ; }
67	<	protected void onStart() { throw new Error(); }
67	>	protected void onStart() { super.onStart(); throw new MyError(); }
68		}
69
70	<	static class FailingThreadFactory implements ForkJoinPool.ForkJoinWorkerThreadFactory {
71	<	int calls = 0;
72	<	public ForkJoinWorkerThread newThread(ForkJoinPool p){
73	<	if (++calls > 1) return null;
70	>	static class FailingThreadFactory
71	>	implements ForkJoinPool.ForkJoinWorkerThreadFactory {
72	>	final AtomicInteger calls = new AtomicInteger(0);
73	>	public ForkJoinWorkerThread newThread(ForkJoinPool p) {
74	>	if (calls.incrementAndGet() > 1) return null;
75		return new FailingFJWSubclass(p);
76	<	}
76	>	}
77		}
78
79	<	static class SubFJP extends ForkJoinPool { // to expose protected
79	>	static class SubFJP extends ForkJoinPool { // to expose protected
80		SubFJP() { super(1); }
81		public int drainTasksTo(Collection<? super ForkJoinTask<?>> c) {
82		return super.drainTasksTo(c);
#	Line 83 | Line 101 | public class ForkJoinPoolTest extends JS
101		}
102
103		// A simple recursive task for testing
104	<	static final class FibTask extends RecursiveTask<Integer> {
104	>	static final class FibTask extends RecursiveTask<Integer> {
105		final int number;
106		FibTask(int n) { number = n; }
107	<	public Integer compute() {
107	>	protected Integer compute() {
108		int n = number;
109		if (n <= 1)
110		return n;
#	Line 97 | Line 115 | public class ForkJoinPoolTest extends JS
115		}
116
117		// A failing task for testing
118	<	static final class FailingTask extends ForkJoinTask<Void> {
118	>	static final class FailingTask extends ForkJoinTask<Void> {
119		public final Void getRawResult() { return null; }
120		protected final void setRawResult(Void mustBeNull) { }
121		protected final boolean exec() { throw new Error(); }
#	Line 105 | Line 123 | public class ForkJoinPoolTest extends JS
123		}
124
125		// Fib needlessly using locking to test ManagedBlockers
126	<	static final class LockingFibTask extends RecursiveTask<Integer> {
126	>	static final class LockingFibTask extends RecursiveTask<Integer> {
127		final int number;
128		final ManagedLocker locker;
129		final ReentrantLock lock;
130	<	LockingFibTask(int n, ManagedLocker locker, ReentrantLock lock) {
131	<	number = n;
130	>	LockingFibTask(int n, ManagedLocker locker, ReentrantLock lock) {
131	>	number = n;
132		this.locker = locker;
133		this.lock = lock;
134		}
135	<	public Integer compute() {
135	>	protected Integer compute() {
136		int n;
137		LockingFibTask f1 = null;
138		LockingFibTask f2 = null;
139		locker.block();
140	<	n = number;
140	>	n = number;
141		if (n > 1) {
142		f1 = new LockingFibTask(n - 1, locker, lock);
143		f2 = new LockingFibTask(n - 2, locker, lock);
#	Line 134 | Line 152 | public class ForkJoinPoolTest extends JS
152		}
153		}
154
155	<	/**
156	<	* Succesfully constructed pool reports default factory,
155	>	/**
156	>	* Successfully constructed pool reports default factory,
157		* parallelism and async mode policies, no active threads or
158		* tasks, and quiescent running state.
159		*/
160		public void testDefaultInitialState() {
161	<	ForkJoinPool p = null;
162	<	try {
163	<	p = new ForkJoinPool(1);
164	<	assertTrue(p.getFactory() == ForkJoinPool.defaultForkJoinWorkerThreadFactory);
147	<	assertTrue(p.isQuiescent());
148	<	assertTrue(p.getMaintainsParallelism());
161	>	ForkJoinPool p = new ForkJoinPool(1);
162	>	try (PoolCleaner cleaner = cleaner(p)) {
163	>	assertSame(ForkJoinPool.defaultForkJoinWorkerThreadFactory,
164	>	p.getFactory());
165		assertFalse(p.getAsyncMode());
166	<	assertTrue(p.getActiveThreadCount() == 0);
167	<	assertTrue(p.getStealCount() == 0);
168	<	assertTrue(p.getQueuedTaskCount() == 0);
169	<	assertTrue(p.getQueuedSubmissionCount() == 0);
166	>	assertEquals(0, p.getActiveThreadCount());
167	>	assertEquals(0, p.getStealCount());
168	>	assertEquals(0, p.getQueuedTaskCount());
169	>	assertEquals(0, p.getQueuedSubmissionCount());
170		assertFalse(p.hasQueuedSubmissions());
171		assertFalse(p.isShutdown());
172		assertFalse(p.isTerminating());
173		assertFalse(p.isTerminated());
158	–	} finally {
159	–	joinPool(p);
174		}
175		}
176
177	<	/**
178	<	* Constructor throws if size argument is less than zero
177	>	/**
178	>	* Constructor throws if size argument is less than zero
179		*/
180		public void testConstructor1() {
181		try {
182		new ForkJoinPool(-1);
183		shouldThrow();
184	<	}
171	<	catch (IllegalArgumentException success){}
184	>	} catch (IllegalArgumentException success) {}
185		}
186
187	<	/**
188	<	* Constructor throws if factory argument is null
187	>	/**
188	>	* Constructor throws if factory argument is null
189		*/
190		public void testConstructor2() {
191		try {
192	<	new ForkJoinPool(1, null);
192	>	new ForkJoinPool(1, null, null, false);
193		shouldThrow();
194	<	}
182	<	catch (NullPointerException success){}
194	>	} catch (NullPointerException success) {}
195		}
196
197	<
198	<	/**
187	<	* getParallelism returns size set in constructor
197	>	/**
198	>	* getParallelism returns size set in constructor
199		*/
200		public void testGetParallelism() {
201	<	ForkJoinPool p = null;
202	<	try {
203	<	p = new ForkJoinPool(1);
193	<	assertTrue(p.getParallelism() == 1);
194	<	} finally {
195	<	joinPool(p);
196	<	}
197	<	}
198	<
199	<	/**
200	<	* setParallelism changes reported parallelism level.
201	<	*/
202	<	public void testSetParallelism() {
203	<	ForkJoinPool p = null;
204	<	try {
205	<	p = new ForkJoinPool(1);
206	<	assertTrue(p.getParallelism() == 1);
207	<	p.setParallelism(2);
208	<	assertTrue(p.getParallelism() == 2);
209	<	} finally {
210	<	joinPool(p);
211	<	}
212	<	}
213	<
214	<	/**
215	<	* setParallelism with argument <= 0 throws exception
216	<	*/
217	<	public void testSetParallelism2() {
218	<	ForkJoinPool p = null;
219	<	try {
220	<	p = new ForkJoinPool(1);
221	<	assertTrue(p.getParallelism() == 1);
222	<	p.setParallelism(-2);
223	<	shouldThrow();
224	<	}catch (IllegalArgumentException success){
225	<	} finally {
226	<	joinPool(p);
201	>	ForkJoinPool p = new ForkJoinPool(1);
202	>	try (PoolCleaner cleaner = cleaner(p)) {
203	>	assertEquals(1, p.getParallelism());
204		}
205		}
206
207	<	/**
207	>	/**
208		* getPoolSize returns number of started workers.
209		*/
210		public void testGetPoolSize() {
211	<	ForkJoinPool p = null;
212	<	try {
213	<	p = new ForkJoinPool(1);
214	<	assertTrue(p.getPoolSize() == 0);
215	<	Future<String> future = p.submit(new StringTask());
216	<	assertTrue(p.getPoolSize() == 1);
217	<
218	<	} finally {
219	<	joinPool(p);
220	<	}
221	<	}
222	<
223	<	/**
224	<	* setMaximumPoolSize changes size reported by getMaximumPoolSize.
225	<	*/
226	<	public void testSetMaximumPoolSize() {
227	<	ForkJoinPool p = null;
251	<	try {
252	<	p = new ForkJoinPool(1);
253	<	p.setMaximumPoolSize(2);
254	<	assertTrue(p.getMaximumPoolSize() == 2);
255	<	} finally {
256	<	joinPool(p);
257	<	}
258	<	}
259	<
260	<	/**
261	<	* setMaximumPoolSize with argument <= 0 throws exception
262	<	*/
263	<	public void testSetMaximumPoolSize2() {
264	<	ForkJoinPool p = null;
265	<	try {
266	<	p = new ForkJoinPool(1);
267	<	p.setMaximumPoolSize(-2);
268	<	shouldThrow();
269	<	}catch (IllegalArgumentException success){
270	<	} finally {
271	<	joinPool(p);
211	>	final CountDownLatch taskStarted = new CountDownLatch(1);
212	>	final CountDownLatch done = new CountDownLatch(1);
213	>	final ForkJoinPool p = new ForkJoinPool(1);
214	>	try (PoolCleaner cleaner = cleaner(p)) {
215	>	assertEquals(0, p.getActiveThreadCount());
216	>	final Runnable task = new CheckedRunnable() {
217	>	public void realRun() throws InterruptedException {
218	>	taskStarted.countDown();
219	>	assertEquals(1, p.getPoolSize());
220	>	assertEquals(1, p.getActiveThreadCount());
221	>	await(done);
222	>	}};
223	>	Future<?> future = p.submit(task);
224	>	await(taskStarted);
225	>	assertEquals(1, p.getPoolSize());
226	>	assertEquals(1, p.getActiveThreadCount());
227	>	done.countDown();
228		}
229	+	assertEquals(0, p.getPoolSize());
230	+	assertEquals(0, p.getActiveThreadCount());
231		}
232
233	<	/**
234	<	* setMaintainsParallelism changes policy reported by
277	<	* getMaintainsParallelism.
278	<	*/
279	<	public void testSetMaintainsParallelism() {
280	<	ForkJoinPool p = null;
281	<	try {
282	<	p = new ForkJoinPool(1);
283	<	p.setMaintainsParallelism(false);
284	<	assertFalse(p.getMaintainsParallelism());
285	<	} finally {
286	<	joinPool(p);
287	<	}
288	<	}
289	<
290	<	/**
291	<	* setAsyncMode changes policy reported by
292	<	* getAsyncMode.
233	>	/**
234	>	* awaitTermination on a non-shutdown pool times out
235		*/
236	<	public void testSetAsyncMode() {
237	<	ForkJoinPool p = null;
238	<	try {
239	<	p = new ForkJoinPool(1);
240	<	p.setAsyncMode(true);
241	<	assertTrue(p.getAsyncMode());
242	<	} finally {
243	<	joinPool(p);
236	>	public void testAwaitTermination_timesOut() throws InterruptedException {
237	>	ForkJoinPool p = new ForkJoinPool(1);
238	>	try (PoolCleaner cleaner = cleaner(p)) {
239	>	assertFalse(p.isTerminated());
240	>	assertFalse(p.awaitTermination(Long.MIN_VALUE, NANOSECONDS));
241	>	assertFalse(p.awaitTermination(Long.MIN_VALUE, MILLISECONDS));
242	>	assertFalse(p.awaitTermination(-1L, NANOSECONDS));
243	>	assertFalse(p.awaitTermination(-1L, MILLISECONDS));
244	>	assertFalse(p.awaitTermination(randomExpiredTimeout(),
245	>	randomTimeUnit()));
246	>	long timeoutNanos = 999999L;
247	>	long startTime = System.nanoTime();
248	>	assertFalse(p.awaitTermination(timeoutNanos, NANOSECONDS));
249	>	assertTrue(System.nanoTime() - startTime >= timeoutNanos);
250	>	assertFalse(p.isTerminated());
251	>	startTime = System.nanoTime();
252	>	long timeoutMillis = timeoutMillis();
253	>	assertFalse(p.awaitTermination(timeoutMillis, MILLISECONDS));
254	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
255	>	assertFalse(p.isTerminated());
256	>	p.shutdown();
257	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
258	>	assertTrue(p.isTerminated());
259		}
260		}
261
262	<	/**
262	>	/**
263		* setUncaughtExceptionHandler changes handler for uncaught exceptions.
264		*
265		* Additionally tests: Overriding ForkJoinWorkerThread.onStart
266		* performs its defined action
267		*/
268	<	public void testSetUncaughtExceptionHandler() {
269	<	ForkJoinPool p = null;
270	<	try {
271	<	p = new ForkJoinPool(1, new FailingThreadFactory());
272	<	MyHandler eh = new MyHandler();
273	<	p.setUncaughtExceptionHandler(eh);
274	<	assertEquals(eh, p.getUncaughtExceptionHandler());
275	<	p.execute(new FailingTask());
276	<	Thread.sleep(MEDIUM_DELAY_MS);
277	<	assertTrue(eh.catches > 0);
278	<	} catch(InterruptedException e){
279	<	unexpectedException();
280	<	} finally {
281	<	joinPool(p);
282	<	}
283	<	}
284	<
285	<	/**
286	<	* setUncaughtExceptionHandler of null removes handler
330	<	*/
331	<	public void testSetUncaughtExceptionHandler2() {
332	<	ForkJoinPool p = null;
333	<	try {
334	<	p = new ForkJoinPool(1);
335	<	p.setUncaughtExceptionHandler(null);
336	<	assertNull(p.getUncaughtExceptionHandler());
337	<	} finally {
338	<	joinPool(p);
268	>	public void testSetUncaughtExceptionHandler() throws InterruptedException {
269	>	final CountDownLatch uehInvoked = new CountDownLatch(1);
270	>	final Thread.UncaughtExceptionHandler ueh =
271	>	new Thread.UncaughtExceptionHandler() {
272	>	public void uncaughtException(Thread t, Throwable e) {
273	>	threadAssertTrue(e instanceof MyError);
274	>	threadAssertTrue(t instanceof FailingFJWSubclass);
275	>	uehInvoked.countDown();
276	>	}};
277	>	ForkJoinPool p = new ForkJoinPool(1, new FailingThreadFactory(),
278	>	ueh, false);
279	>	try (PoolCleaner cleaner = cleaner(p)) {
280	>	assertSame(ueh, p.getUncaughtExceptionHandler());
281	>	try {
282	>	p.execute(new FibTask(8));
283	>	await(uehInvoked);
284	>	} finally {
285	>	p.shutdownNow(); // failure might have prevented processing task
286	>	}
287		}
288		}
289
290	+	/**
291	+	* After invoking a single task, isQuiescent eventually becomes
292	+	* true, at which time queues are empty, threads are not active,
293	+	* the task has completed successfully, and construction
294	+	* parameters continue to hold
295	+	*/
296	+	public void testIsQuiescent() throws Exception {
297	+	ForkJoinPool p = new ForkJoinPool(2);
298	+	try (PoolCleaner cleaner = cleaner(p)) {
299	+	assertTrue(p.isQuiescent());
300	+	long startTime = System.nanoTime();
301	+	FibTask f = new FibTask(20);
302	+	p.invoke(f);
303	+	assertSame(ForkJoinPool.defaultForkJoinWorkerThreadFactory,
304	+	p.getFactory());
305	+	while (! p.isQuiescent()) {
306	+	if (millisElapsedSince(startTime) > LONG_DELAY_MS)
307	+	throw new AssertionFailedError("timed out");
308	+	assertFalse(p.getAsyncMode());
309	+	assertFalse(p.isShutdown());
310	+	assertFalse(p.isTerminating());
311	+	assertFalse(p.isTerminated());
312	+	Thread.yield();
313	+	}
314
343	–	/**
344	–	* After invoking a single task, isQuiescent is true,
345	–	* queues are empty, threads are not active, and
346	–	* construction parameters continue to hold
347	–	*/
348	–	public void testisQuiescent() {
349	–	ForkJoinPool p = null;
350	–	try {
351	–	p = new ForkJoinPool(2);
352	–	p.invoke(new FibTask(20));
353	–	assertTrue(p.getFactory() == ForkJoinPool.defaultForkJoinWorkerThreadFactory);
354	–	Thread.sleep(MEDIUM_DELAY_MS);
315		assertTrue(p.isQuiescent());
356	–	assertTrue(p.getMaintainsParallelism());
316		assertFalse(p.getAsyncMode());
317	<	assertTrue(p.getActiveThreadCount() == 0);
318	<	assertTrue(p.getQueuedTaskCount() == 0);
360	<	assertTrue(p.getQueuedSubmissionCount() == 0);
317	>	assertEquals(0, p.getQueuedTaskCount());
318	>	assertEquals(0, p.getQueuedSubmissionCount());
319		assertFalse(p.hasQueuedSubmissions());
320	+	while (p.getActiveThreadCount() != 0
321	+	&& millisElapsedSince(startTime) < LONG_DELAY_MS)
322	+	Thread.yield();
323		assertFalse(p.isShutdown());
324		assertFalse(p.isTerminating());
325		assertFalse(p.isTerminated());
326	<	} catch(InterruptedException e){
327	<	unexpectedException();
328	<	} finally {
368	<	joinPool(p);
326	>	assertTrue(f.isDone());
327	>	assertEquals(6765, (int) f.get());
328	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
329		}
330		}
331
332		/**
333		* Completed submit(ForkJoinTask) returns result
334		*/
335	<	public void testSubmitForkJoinTask() {
336	<	ForkJoinPool p = null;
337	<	try {
378	<	p = new ForkJoinPool(1);
335	>	public void testSubmitForkJoinTask() throws Throwable {
336	>	ForkJoinPool p = new ForkJoinPool(1);
337	>	try (PoolCleaner cleaner = cleaner(p)) {
338		ForkJoinTask<Integer> f = p.submit(new FibTask(8));
339	<	int r = f.get();
381	<	assertTrue(r == 21);
382	<	} catch (ExecutionException ex) {
383	<	unexpectedException();
384	<	} catch (InterruptedException ex) {
385	<	unexpectedException();
386	<	} finally {
387	<	joinPool(p);
339	>	assertEquals(21, (int) f.get());
340		}
341		}
342
#	Line 392 | Line 344 | public class ForkJoinPoolTest extends JS
344		* A task submitted after shutdown is rejected
345		*/
346		public void testSubmitAfterShutdown() {
347	<	ForkJoinPool p = null;
348	<	try {
397	<	p = new ForkJoinPool(1);
347	>	ForkJoinPool p = new ForkJoinPool(1);
348	>	try (PoolCleaner cleaner = cleaner(p)) {
349		p.shutdown();
350		assertTrue(p.isShutdown());
351	<	ForkJoinTask<Integer> f = p.submit(new FibTask(8));
352	<	shouldThrow();
353	<	} catch (RejectedExecutionException success) {
354	<	} finally {
404	<	joinPool(p);
351	>	try {
352	>	ForkJoinTask<Integer> f = p.submit(new FibTask(8));
353	>	shouldThrow();
354	>	} catch (RejectedExecutionException success) {}
355		}
356		}
357
358		/**
359		* Pool maintains parallelism when using ManagedBlocker
360		*/
361	<	public void testBlockingForkJoinTask() {
362	<	ForkJoinPool p = null;
361	>	public void testBlockingForkJoinTask() throws Throwable {
362	>	ForkJoinPool p = new ForkJoinPool(4);
363		try {
414	–	p = new ForkJoinPool(4);
364		ReentrantLock lock = new ReentrantLock();
365		ManagedLocker locker = new ManagedLocker(lock);
366	<	ForkJoinTask<Integer> f = new LockingFibTask(30, locker, lock);
366	>	ForkJoinTask<Integer> f = new LockingFibTask(20, locker, lock);
367		p.execute(f);
368	<	assertTrue(p.getPoolSize() >= 4);
420	<	int r = f.get();
421	<	assertTrue(r ==  832040);
422	<	} catch (ExecutionException ex) {
423	<	unexpectedException();
424	<	} catch (InterruptedException ex) {
425	<	unexpectedException();
368	>	assertEquals(6765, (int) f.get());
369		} finally {
370	<	joinPool(p);
370	>	p.shutdownNow(); // don't wait out shutdown
371		}
372		}
373
#	Line 432 | Line 375 | public class ForkJoinPoolTest extends JS
375		* pollSubmission returns unexecuted submitted task, if present
376		*/
377		public void testPollSubmission() {
378	<	SubFJP p = null;
379	<	try {
380	<	p = new SubFJP();
381	<	ForkJoinTask a = p.submit(new MediumRunnable());
382	<	ForkJoinTask b = p.submit(new MediumRunnable());
383	<	ForkJoinTask c = p.submit(new MediumRunnable());
378	>	final CountDownLatch done = new CountDownLatch(1);
379	>	SubFJP p = new SubFJP();
380	>	try (PoolCleaner cleaner = cleaner(p)) {
381	>	ForkJoinTask a = p.submit(awaiter(done));
382	>	ForkJoinTask b = p.submit(awaiter(done));
383	>	ForkJoinTask c = p.submit(awaiter(done));
384		ForkJoinTask r = p.pollSubmission();
385		assertTrue(r == a || r == b || r == c);
386		assertFalse(r.isDone());
387	<	} finally {
445	<	joinPool(p);
387	>	done.countDown();
388		}
389		}
390
#	Line 450 | Line 392 | public class ForkJoinPoolTest extends JS
392		* drainTasksTo transfers unexecuted submitted tasks, if present
393		*/
394		public void testDrainTasksTo() {
395	<	SubFJP p = null;
396	<	try {
397	<	p = new SubFJP();
398	<	ForkJoinTask a = p.submit(new MediumRunnable());
399	<	ForkJoinTask b = p.submit(new MediumRunnable());
400	<	ForkJoinTask c = p.submit(new MediumRunnable());
395	>	final CountDownLatch done = new CountDownLatch(1);
396	>	SubFJP p = new SubFJP();
397	>	try (PoolCleaner cleaner = cleaner(p)) {
398	>	ForkJoinTask a = p.submit(awaiter(done));
399	>	ForkJoinTask b = p.submit(awaiter(done));
400	>	ForkJoinTask c = p.submit(awaiter(done));
401		ArrayList<ForkJoinTask> al = new ArrayList();
402		p.drainTasksTo(al);
403		assertTrue(al.size() > 0);
#	Line 463 | Line 405 | public class ForkJoinPoolTest extends JS
405		assertTrue(r == a || r == b || r == c);
406		assertFalse(r.isDone());
407		}
408	<	} finally {
467	<	joinPool(p);
408	>	done.countDown();
409		}
410		}
411
471	–
412		// FJ Versions of AbstractExecutorService tests
413
414		/**
415		* execute(runnable) runs it to completion
416		*/
417	<	public void testExecuteRunnable() {
418	<	try {
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);
425	<	}
426	<	catch (ExecutionException ex) {
427	<	unexpectedException();
428	<	}
429	<	catch (InterruptedException ex) {
490	<	unexpectedException();
417	>	public void testExecuteRunnable() throws Throwable {
418	>	ExecutorService e = new ForkJoinPool(1);
419	>	try (PoolCleaner cleaner = cleaner(e)) {
420	>	final AtomicBoolean done = new AtomicBoolean(false);
421	>	Future<?> future = e.submit(new CheckedRunnable() {
422	>	public void realRun() {
423	>	done.set(true);
424	>	}});
425	>	assertNull(future.get());
426	>	assertNull(future.get(randomExpiredTimeout(), randomTimeUnit()));
427	>	assertTrue(done.get());
428	>	assertTrue(future.isDone());
429	>	assertFalse(future.isCancelled());
430		}
431		}
432
494	–
433		/**
434		* Completed submit(callable) returns result
435		*/
436	<	public void testSubmitCallable() {
437	<	try {
438	<	ExecutorService e = new ForkJoinPool(1);
436	>	public void testSubmitCallable() throws Throwable {
437	>	ExecutorService e = new ForkJoinPool(1);
438	>	try (PoolCleaner cleaner = cleaner(e)) {
439		Future<String> future = e.submit(new StringTask());
440	<	String result = future.get();
441	<	assertSame(TEST_STRING, result);
442	<	}
505	<	catch (ExecutionException ex) {
506	<	unexpectedException();
507	<	}
508	<	catch (InterruptedException ex) {
509	<	unexpectedException();
440	>	assertSame(TEST_STRING, future.get());
441	>	assertTrue(future.isDone());
442	>	assertFalse(future.isCancelled());
443		}
444		}
445
446		/**
447		* Completed submit(runnable) returns successfully
448		*/
449	<	public void testSubmitRunnable() {
450	<	try {
451	<	ExecutorService e = new ForkJoinPool(1);
449	>	public void testSubmitRunnable() throws Throwable {
450	>	ExecutorService e = new ForkJoinPool(1);
451	>	try (PoolCleaner cleaner = cleaner(e)) {
452		Future<?> future = e.submit(new NoOpRunnable());
453	<	future.get();
453	>	assertNull(future.get());
454		assertTrue(future.isDone());
455	<	}
523	<	catch (ExecutionException ex) {
524	<	unexpectedException();
525	<	}
526	<	catch (InterruptedException ex) {
527	<	unexpectedException();
455	>	assertFalse(future.isCancelled());
456		}
457		}
458
459		/**
460		* Completed submit(runnable, result) returns result
461		*/
462	<	public void testSubmitRunnable2() {
463	<	try {
464	<	ExecutorService e = new ForkJoinPool(1);
462	>	public void testSubmitRunnable2() throws Throwable {
463	>	ExecutorService e = new ForkJoinPool(1);
464	>	try (PoolCleaner cleaner = cleaner(e)) {
465		Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING);
466	<	String result = future.get();
467	<	assertSame(TEST_STRING, result);
468	<	}
541	<	catch (ExecutionException ex) {
542	<	unexpectedException();
543	<	}
544	<	catch (InterruptedException ex) {
545	<	unexpectedException();
466	>	assertSame(TEST_STRING, future.get());
467	>	assertTrue(future.isDone());
468	>	assertFalse(future.isCancelled());
469		}
470		}
471
549	–
472		/**
473	<	* A submitted privileged action to completion
473	>	* A submitted privileged action runs to completion
474		*/
475	<	public void testSubmitPrivilegedAction() {
476	<	Policy savedPolicy = null;
477	<	try {
478	<	savedPolicy = Policy.getPolicy();
479	<	AdjustablePolicy policy = new AdjustablePolicy();
558	<	policy.addPermission(new RuntimePermission("getContextClassLoader"));
559	<	policy.addPermission(new RuntimePermission("setContextClassLoader"));
560	<	Policy.setPolicy(policy);
561	<	} catch(AccessControlException ok) {
562	<	return;
563	<	}
564	<	try {
475	>	public void testSubmitPrivilegedAction() throws Exception {
476	>	final Callable callable = Executors.callable(new PrivilegedAction() {
477	>	public Object run() { return TEST_STRING; }});
478	>	Runnable r = new CheckedRunnable() {
479	>	public void realRun() throws Exception {
480		ExecutorService e = new ForkJoinPool(1);
481	<	Future future = e.submit(Executors.callable(new PrivilegedAction() {
482	<	public Object run() {
483	<	return TEST_STRING;
569	<	}}));
570	<
571	<	Object result = future.get();
572	<	assertSame(TEST_STRING, result);
573	<	}
574	<	catch (ExecutionException ex) {
575	<	unexpectedException();
576	<	}
577	<	catch (InterruptedException ex) {
578	<	unexpectedException();
579	<	}
580	<	finally {
581	<	try {
582	<	Policy.setPolicy(savedPolicy);
583	<	} catch(AccessControlException ok) {
584	<	return;
481	>	try (PoolCleaner cleaner = cleaner(e)) {
482	>	Future future = e.submit(callable);
483	>	assertSame(TEST_STRING, future.get());
484		}
485	<	}
485	>	}};
486	>
487	>	runWithPermissions(r, new RuntimePermission("modifyThread"));
488		}
489
490		/**
491	<	* A submitted a privileged exception action runs to completion
491	>	* A submitted privileged exception action runs to completion
492		*/
493	<	public void testSubmitPrivilegedExceptionAction() {
494	<	Policy savedPolicy = null;
495	<	try {
496	<	savedPolicy = Policy.getPolicy();
497	<	AdjustablePolicy policy = new AdjustablePolicy();
498	<	policy.addPermission(new RuntimePermission("getContextClassLoader"));
598	<	policy.addPermission(new RuntimePermission("setContextClassLoader"));
599	<	Policy.setPolicy(policy);
600	<	} catch(AccessControlException ok) {
601	<	return;
602	<	}
603	<
604	<	try {
493	>	public void testSubmitPrivilegedExceptionAction() throws Exception {
494	>	final Callable callable =
495	>	Executors.callable(new PrivilegedExceptionAction() {
496	>	public Object run() { return TEST_STRING; }});
497	>	Runnable r = new CheckedRunnable() {
498	>	public void realRun() throws Exception {
499		ExecutorService e = new ForkJoinPool(1);
500	<	Future future = e.submit(Executors.callable(new PrivilegedExceptionAction() {
501	<	public Object run() {
502	<	return TEST_STRING;
503	<	}}));
500	>	try (PoolCleaner cleaner = cleaner(e)) {
501	>	Future future = e.submit(callable);
502	>	assertSame(TEST_STRING, future.get());
503	>	}
504	>	}};
505
506	<	Object result = future.get();
612	<	assertSame(TEST_STRING, result);
613	<	}
614	<	catch (ExecutionException ex) {
615	<	unexpectedException();
616	<	}
617	<	catch (InterruptedException ex) {
618	<	unexpectedException();
619	<	}
620	<	finally {
621	<	Policy.setPolicy(savedPolicy);
622	<	}
506	>	runWithPermissions(r, new RuntimePermission("modifyThread"));
507		}
508
509		/**
510		* A submitted failed privileged exception action reports exception
511		*/
512	<	public void testSubmitFailedPrivilegedExceptionAction() {
513	<	Policy savedPolicy = null;
514	<	try {
515	<	savedPolicy = Policy.getPolicy();
516	<	AdjustablePolicy policy = new AdjustablePolicy();
517	<	policy.addPermission(new RuntimePermission("getContextClassLoader"));
634	<	policy.addPermission(new RuntimePermission("setContextClassLoader"));
635	<	Policy.setPolicy(policy);
636	<	} catch(AccessControlException ok) {
637	<	return;
638	<	}
639	<
640	<
641	<	try {
512	>	public void testSubmitFailedPrivilegedExceptionAction() throws Exception {
513	>	final Callable callable =
514	>	Executors.callable(new PrivilegedExceptionAction() {
515	>	public Object run() { throw new IndexOutOfBoundsException(); }});
516	>	Runnable r = new CheckedRunnable() {
517	>	public void realRun() throws Exception {
518		ExecutorService e = new ForkJoinPool(1);
519	<	Future future = e.submit(Executors.callable(new PrivilegedExceptionAction() {
520	<	public Object run() throws Exception {
521	<	throw new IndexOutOfBoundsException();
522	<	}}));
519	>	try (PoolCleaner cleaner = cleaner(e)) {
520	>	Future future = e.submit(callable);
521	>	try {
522	>	future.get();
523	>	shouldThrow();
524	>	} catch (ExecutionException success) {
525	>	assertTrue(success.getCause() instanceof IndexOutOfBoundsException);
526	>	}
527	>	}
528	>	}};
529
530	<	Object result = future.get();
649	<	shouldThrow();
650	<	}
651	<	catch (ExecutionException success) {
652	<	} catch (CancellationException success) {
653	<	} catch (InterruptedException ex) {
654	<	unexpectedException();
655	<	}
656	<	finally {
657	<	Policy.setPolicy(savedPolicy);
658	<	}
530	>	runWithPermissions(r, new RuntimePermission("modifyThread"));
531		}
532
533		/**
534	<	* execute(null runnable) throws NPE
534	>	* execute(null runnable) throws NullPointerException
535		*/
536		public void testExecuteNullRunnable() {
537	<	try {
538	<	ExecutorService e = new ForkJoinPool(1);
539	<	TrackedShortRunnable task = null;
540	<	Future<?> future = e.submit(task);
541	<	shouldThrow();
542	<	}
671	<	catch (NullPointerException success) {
672	<	}
673	<	catch (Exception ex) {
674	<	unexpectedException();
537	>	ExecutorService e = new ForkJoinPool(1);
538	>	try (PoolCleaner cleaner = cleaner(e)) {
539	>	try {
540	>	Future<?> future = e.submit((Runnable) null);
541	>	shouldThrow();
542	>	} catch (NullPointerException success) {}
543		}
544		}
545
678	–
546		/**
547	<	* submit(null callable) throws NPE
547	>	* submit(null callable) throws NullPointerException
548		*/
549		public void testSubmitNullCallable() {
550	<	try {
551	<	ExecutorService e = new ForkJoinPool(1);
552	<	StringTask t = null;
553	<	Future<String> future = e.submit(t);
554	<	shouldThrow();
555	<	}
689	<	catch (NullPointerException success) {
690	<	}
691	<	catch (Exception ex) {
692	<	unexpectedException();
550	>	ExecutorService e = new ForkJoinPool(1);
551	>	try (PoolCleaner cleaner = cleaner(e)) {
552	>	try {
553	>	Future<String> future = e.submit((Callable) null);
554	>	shouldThrow();
555	>	} catch (NullPointerException success) {}
556		}
557		}
558
696	–
559		/**
560	<	*  Blocking on submit(callable) throws InterruptedException if
561	<	*  caller interrupted.
562	<	*/
563	<	public void testInterruptedSubmit() {
564	<	final ForkJoinPool p = new ForkJoinPool(1);
565	<	Thread t = new Thread(new Runnable() {
566	<	public void run() {
567	<	try {
568	<	p.submit(new Callable<Object>() {
569	<	public Object call() {
570	<	try {
571	<	Thread.sleep(MEDIUM_DELAY_MS);
572	<	shouldThrow();
573	<	} catch(InterruptedException e){
574	<	}
575	<	return null;
576	<	}
577	<	}).get();
716	<	} catch(InterruptedException success){
717	<	} catch(Exception e) {
718	<	unexpectedException();
719	<	}
720	<
721	<	}
722	<	});
723	<	try {
560	>	* submit(callable).get() throws InterruptedException if interrupted
561	>	*/
562	>	public void testInterruptedSubmit() throws InterruptedException {
563	>	final CountDownLatch submitted    = new CountDownLatch(1);
564	>	final CountDownLatch quittingTime = new CountDownLatch(1);
565	>	final Callable<Void> awaiter = new CheckedCallable<Void>() {
566	>	public Void realCall() throws InterruptedException {
567	>	assertTrue(quittingTime.await(2*LONG_DELAY_MS, MILLISECONDS));
568	>	return null;
569	>	}};
570	>	final ExecutorService p = new ForkJoinPool(1);
571	>	try (PoolCleaner cleaner = cleaner(p, quittingTime)) {
572	>	Thread t = new Thread(new CheckedInterruptedRunnable() {
573	>	public void realRun() throws Exception {
574	>	Future<Void> future = p.submit(awaiter);
575	>	submitted.countDown();
576	>	future.get();
577	>	}});
578		t.start();
579	<	Thread.sleep(SHORT_DELAY_MS);
579	>	await(submitted);
580		t.interrupt();
581	<	} catch(Exception e){
728	<	unexpectedException();
581	>	awaitTermination(t);
582		}
730	–	joinPool(p);
583		}
584
585		/**
586	<	*  get of submit(callable) throws ExecutionException if callable
587	<	*  throws exception
586	>	* get of submit(callable) throws ExecutionException if callable
587	>	* throws exception
588		*/
589	<	public void testSubmitEE() {
589	>	public void testSubmitEE() throws Throwable {
590		ForkJoinPool p = new ForkJoinPool(1);
591	<
592	<	try {
593	<	Callable c = new Callable() {
594	<	public Object call() {
595	<	int i = 5/0;
596	<	return Boolean.TRUE;
597	<	}
598	<	};
747	<
748	<	for(int i =0; i < 5; i++){
749	<	p.submit(c).get();
591	>	try (PoolCleaner cleaner = cleaner(p)) {
592	>	try {
593	>	p.submit(new Callable() {
594	>	public Object call() { throw new ArithmeticException(); }})
595	>	.get();
596	>	shouldThrow();
597	>	} catch (ExecutionException success) {
598	>	assertTrue(success.getCause() instanceof ArithmeticException);
599		}
751	–
752	–	shouldThrow();
600		}
601	<	catch(ExecutionException success){
602	<	} catch (CancellationException success) {
603	<	} catch(Exception e) {
604	<	unexpectedException();
601	>	}
602	>
603	>	/**
604	>	* invokeAny(null) throws NullPointerException
605	>	*/
606	>	public void testInvokeAny1() throws Throwable {
607	>	ExecutorService e = new ForkJoinPool(1);
608	>	try (PoolCleaner cleaner = cleaner(e)) {
609	>	try {
610	>	e.invokeAny(null);
611	>	shouldThrow();
612	>	} catch (NullPointerException success) {}
613		}
759	–	joinPool(p);
614		}
615
616		/**
617	<	* invokeAny(null) throws NPE
617	>	* invokeAny(empty collection) throws IllegalArgumentException
618		*/
619	<	public void testInvokeAny1() {
619	>	public void testInvokeAny2() throws Throwable {
620		ExecutorService e = new ForkJoinPool(1);
621	<	try {
622	<	e.invokeAny(null);
623	<	} catch (NullPointerException success) {
624	<	} catch(Exception ex) {
625	<	unexpectedException();
772	<	} finally {
773	<	joinPool(e);
621	>	try (PoolCleaner cleaner = cleaner(e)) {
622	>	try {
623	>	e.invokeAny(new ArrayList<Callable<String>>());
624	>	shouldThrow();
625	>	} catch (IllegalArgumentException success) {}
626		}
627		}
628
629		/**
630	<	* invokeAny(empty collection) throws IAE
630	>	* invokeAny(c) throws NullPointerException if c has a single null element
631		*/
632	<	public void testInvokeAny2() {
632	>	public void testInvokeAny3() throws Throwable {
633		ExecutorService e = new ForkJoinPool(1);
634	<	try {
635	<	e.invokeAny(new ArrayList<Callable<String>>());
636	<	} catch (IllegalArgumentException success) {
637	<	} catch(Exception ex) {
638	<	unexpectedException();
639	<	} finally {
640	<	joinPool(e);
634	>	try (PoolCleaner cleaner = cleaner(e)) {
635	>	List<Callable<String>> l = new ArrayList<>();
636	>	l.add(null);
637	>	try {
638	>	e.invokeAny(l);
639	>	shouldThrow();
640	>	} catch (NullPointerException success) {}
641		}
642		}
643
644		/**
645	<	* invokeAny(c) throws NPE if c has null elements
645	>	* invokeAny(c) throws NullPointerException if c has null elements
646		*/
647	<	public void testInvokeAny3() {
647	>	public void testInvokeAny4() throws Throwable {
648	>	CountDownLatch latch = new CountDownLatch(1);
649		ExecutorService e = new ForkJoinPool(1);
650	<	try {
651	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
652	<	l.add(new StringTask());
650	>	try (PoolCleaner cleaner = cleaner(e)) {
651	>	List<Callable<String>> l = new ArrayList<>();
652	>	l.add(latchAwaitingStringTask(latch));
653		l.add(null);
654	<	e.invokeAny(l);
655	<	} catch (NullPointerException success) {
656	<	} catch(Exception ex) {
657	<	ex.printStackTrace();
658	<	unexpectedException();
806	<	} finally {
807	<	joinPool(e);
654	>	try {
655	>	e.invokeAny(l);
656	>	shouldThrow();
657	>	} catch (NullPointerException success) {}
658	>	latch.countDown();
659		}
660		}
661
662		/**
663		* invokeAny(c) throws ExecutionException if no task in c completes
664		*/
665	<	public void testInvokeAny4() {
665	>	public void testInvokeAny5() throws Throwable {
666		ExecutorService e = new ForkJoinPool(1);
667	<	try {
668	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
667	>	try (PoolCleaner cleaner = cleaner(e)) {
668	>	List<Callable<String>> l = new ArrayList<>();
669		l.add(new NPETask());
670	<	e.invokeAny(l);
671	<	} catch(ExecutionException success) {
672	<	} catch (CancellationException success) {
673	<	} catch(Exception ex) {
674	<	unexpectedException();
675	<	} finally {
825	<	joinPool(e);
670	>	try {
671	>	e.invokeAny(l);
672	>	shouldThrow();
673	>	} catch (ExecutionException success) {
674	>	assertTrue(success.getCause() instanceof NullPointerException);
675	>	}
676		}
677		}
678
679		/**
680		* invokeAny(c) returns result of some task in c if at least one completes
681		*/
682	<	public void testInvokeAny5() {
682	>	public void testInvokeAny6() throws Throwable {
683		ExecutorService e = new ForkJoinPool(1);
684	<	try {
685	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
684	>	try (PoolCleaner cleaner = cleaner(e)) {
685	>	List<Callable<String>> l = new ArrayList<>();
686		l.add(new StringTask());
687		l.add(new StringTask());
688		String result = e.invokeAny(l);
689		assertSame(TEST_STRING, result);
840	–	} catch (ExecutionException success) {
841	–	} catch (CancellationException success) {
842	–	} catch(Exception ex) {
843	–	unexpectedException();
844	–	} finally {
845	–	joinPool(e);
690		}
691		}
692
693		/**
694	<	* invokeAll(null) throws NPE
694	>	* invokeAll(null) throws NullPointerException
695		*/
696	<	public void testInvokeAll1() {
696	>	public void testInvokeAll1() throws Throwable {
697		ExecutorService e = new ForkJoinPool(1);
698	<	try {
699	<	e.invokeAll(null);
700	<	} catch (NullPointerException success) {
701	<	} catch(Exception ex) {
702	<	unexpectedException();
859	<	} finally {
860	<	joinPool(e);
698	>	try (PoolCleaner cleaner = cleaner(e)) {
699	>	try {
700	>	e.invokeAll(null);
701	>	shouldThrow();
702	>	} catch (NullPointerException success) {}
703		}
704		}
705
706		/**
707	<	* invokeAll(empty collection) returns empty collection
707	>	* invokeAll(empty collection) returns empty list
708		*/
709	<	public void testInvokeAll2() {
709	>	public void testInvokeAll2() throws InterruptedException {
710		ExecutorService e = new ForkJoinPool(1);
711	<	try {
712	<	List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>());
711	>	final Collection<Callable<String>> emptyCollection
712	>	= Collections.emptyList();
713	>	try (PoolCleaner cleaner = cleaner(e)) {
714	>	List<Future<String>> r = e.invokeAll(emptyCollection);
715		assertTrue(r.isEmpty());
872	–	} catch(Exception ex) {
873	–	unexpectedException();
874	–	} finally {
875	–	joinPool(e);
716		}
717		}
718
719		/**
720	<	* invokeAll(c) throws NPE if c has null elements
720	>	* invokeAll(c) throws NullPointerException if c has null elements
721		*/
722	<	public void testInvokeAll3() {
722	>	public void testInvokeAll3() throws InterruptedException {
723		ExecutorService e = new ForkJoinPool(1);
724	<	try {
725	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
724	>	try (PoolCleaner cleaner = cleaner(e)) {
725	>	List<Callable<String>> l = new ArrayList<>();
726		l.add(new StringTask());
727		l.add(null);
728	<	e.invokeAll(l);
729	<	} catch (NullPointerException success) {
730	<	} catch(Exception ex) {
731	<	unexpectedException();
892	<	} finally {
893	<	joinPool(e);
728	>	try {
729	>	e.invokeAll(l);
730	>	shouldThrow();
731	>	} catch (NullPointerException success) {}
732		}
733		}
734
735		/**
736	<	* get of returned element of invokeAll(c) throws exception on failed task
736	>	* get of returned element of invokeAll(c) throws
737	>	* ExecutionException on failed task
738		*/
739	<	public void testInvokeAll4() {
739	>	public void testInvokeAll4() throws Throwable {
740		ExecutorService e = new ForkJoinPool(1);
741	<	try {
742	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
741	>	try (PoolCleaner cleaner = cleaner(e)) {
742	>	List<Callable<String>> l = new ArrayList<>();
743		l.add(new NPETask());
744	<	List<Future<String>> result = e.invokeAll(l);
745	<	assertEquals(1, result.size());
746	<	for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
747	<	it.next().get();
748	<	} catch(ExecutionException success) {
749	<	} catch (CancellationException success) {
750	<	} catch(Exception ex) {
751	<	ex.printStackTrace();
913	<	unexpectedException();
914	<	} finally {
915	<	joinPool(e);
744	>	List<Future<String>> futures = e.invokeAll(l);
745	>	assertEquals(1, futures.size());
746	>	try {
747	>	futures.get(0).get();
748	>	shouldThrow();
749	>	} catch (ExecutionException success) {
750	>	assertTrue(success.getCause() instanceof NullPointerException);
751	>	}
752		}
753		}
754
755		/**
756		* invokeAll(c) returns results of all completed tasks in c
757		*/
758	<	public void testInvokeAll5() {
758	>	public void testInvokeAll5() throws Throwable {
759		ExecutorService e = new ForkJoinPool(1);
760	<	try {
761	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
760	>	try (PoolCleaner cleaner = cleaner(e)) {
761	>	List<Callable<String>> l = new ArrayList<>();
762		l.add(new StringTask());
763		l.add(new StringTask());
764	<	List<Future<String>> result = e.invokeAll(l);
765	<	assertEquals(2, result.size());
766	<	for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
767	<	assertSame(TEST_STRING, it.next().get());
932	<	} catch (ExecutionException success) {
933	<	} catch (CancellationException success) {
934	<	} catch(Exception ex) {
935	<	ex.printStackTrace();
936	<	unexpectedException();
937	<	} finally {
938	<	joinPool(e);
764	>	List<Future<String>> futures = e.invokeAll(l);
765	>	assertEquals(2, futures.size());
766	>	for (Future<String> future : futures)
767	>	assertSame(TEST_STRING, future.get());
768		}
769		}
770
942	–
771		/**
772	<	* timed invokeAny(null) throws NPE
772	>	* timed invokeAny(null) throws NullPointerException
773		*/
774	<	public void testTimedInvokeAny1() {
774	>	public void testTimedInvokeAny1() throws Throwable {
775		ExecutorService e = new ForkJoinPool(1);
776	<	try {
777	<	e.invokeAny(null, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
778	<	} catch (NullPointerException success) {
779	<	} catch(Exception ex) {
780	<	ex.printStackTrace();
953	<	unexpectedException();
954	<	} finally {
955	<	joinPool(e);
776	>	try (PoolCleaner cleaner = cleaner(e)) {
777	>	try {
778	>	e.invokeAny(null, randomTimeout(), randomTimeUnit());
779	>	shouldThrow();
780	>	} catch (NullPointerException success) {}
781		}
782		}
783
784		/**
785	<	* timed invokeAny(null time unit) throws NPE
785	>	* timed invokeAny(null time unit) throws NullPointerException
786		*/
787	<	public void testTimedInvokeAnyNullTimeUnit() {
787	>	public void testTimedInvokeAnyNullTimeUnit() throws Throwable {
788		ExecutorService e = new ForkJoinPool(1);
789	<	try {
790	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
789	>	try (PoolCleaner cleaner = cleaner(e)) {
790	>	List<Callable<String>> l = new ArrayList<>();
791		l.add(new StringTask());
792	<	e.invokeAny(l, MEDIUM_DELAY_MS, null);
793	<	} catch (NullPointerException success) {
794	<	} catch(Exception ex) {
795	<	ex.printStackTrace();
971	<	unexpectedException();
972	<	} finally {
973	<	joinPool(e);
792	>	try {
793	>	e.invokeAny(l, randomTimeout(), null);
794	>	shouldThrow();
795	>	} catch (NullPointerException success) {}
796		}
797		}
798
799		/**
800	<	* timed invokeAny(empty collection) throws IAE
800	>	* timed invokeAny(empty collection) throws IllegalArgumentException
801		*/
802	<	public void testTimedInvokeAny2() {
802	>	public void testTimedInvokeAny2() throws Throwable {
803		ExecutorService e = new ForkJoinPool(1);
804	<	try {
805	<	e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
806	<	} catch (IllegalArgumentException success) {
807	<	} catch(Exception ex) {
808	<	ex.printStackTrace();
809	<	unexpectedException();
988	<	} finally {
989	<	joinPool(e);
804	>	try (PoolCleaner cleaner = cleaner(e)) {
805	>	try {
806	>	e.invokeAny(new ArrayList<Callable<String>>(),
807	>	randomTimeout(), randomTimeUnit());
808	>	shouldThrow();
809	>	} catch (IllegalArgumentException success) {}
810		}
811		}
812
813		/**
814	<	* timed invokeAny(c) throws NPE if c has null elements
814	>	* timed invokeAny(c) throws NullPointerException if c has null elements
815		*/
816	<	public void testTimedInvokeAny3() {
816	>	public void testTimedInvokeAny3() throws Throwable {
817	>	CountDownLatch latch = new CountDownLatch(1);
818		ExecutorService e = new ForkJoinPool(1);
819	<	try {
820	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
821	<	l.add(new StringTask());
819	>	try (PoolCleaner cleaner = cleaner(e)) {
820	>	List<Callable<String>> l = new ArrayList<>();
821	>	l.add(latchAwaitingStringTask(latch));
822		l.add(null);
823	<	e.invokeAny(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
824	<	} catch (NullPointerException success) {
825	<	} catch(Exception ex) {
826	<	ex.printStackTrace();
827	<	unexpectedException();
1007	<	} finally {
1008	<	joinPool(e);
823	>	try {
824	>	e.invokeAny(l, randomTimeout(), randomTimeUnit());
825	>	shouldThrow();
826	>	} catch (NullPointerException success) {}
827	>	latch.countDown();
828		}
829		}
830
831		/**
832		* timed invokeAny(c) throws ExecutionException if no task completes
833		*/
834	<	public void testTimedInvokeAny4() {
834	>	public void testTimedInvokeAny4() throws Throwable {
835		ExecutorService e = new ForkJoinPool(1);
836	<	try {
837	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
836	>	try (PoolCleaner cleaner = cleaner(e)) {
837	>	long startTime = System.nanoTime();
838	>	List<Callable<String>> l = new ArrayList<>();
839		l.add(new NPETask());
840	<	e.invokeAny(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
841	<	} catch(ExecutionException success) {
842	<	} catch (CancellationException success) {
843	<	} catch(Exception ex) {
844	<	ex.printStackTrace();
845	<	unexpectedException();
846	<	} finally {
1027	<	joinPool(e);
840	>	try {
841	>	e.invokeAny(l, LONG_DELAY_MS, MILLISECONDS);
842	>	shouldThrow();
843	>	} catch (ExecutionException success) {
844	>	assertTrue(success.getCause() instanceof NullPointerException);
845	>	}
846	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
847		}
848		}
849
850		/**
851		* timed invokeAny(c) returns result of some task in c
852		*/
853	<	public void testTimedInvokeAny5() {
853	>	public void testTimedInvokeAny5() throws Throwable {
854		ExecutorService e = new ForkJoinPool(1);
855	<	try {
856	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
855	>	try (PoolCleaner cleaner = cleaner(e)) {
856	>	long startTime = System.nanoTime();
857	>	List<Callable<String>> l = new ArrayList<>();
858		l.add(new StringTask());
859		l.add(new StringTask());
860	<	String result = e.invokeAny(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
860	>	String result = e.invokeAny(l, LONG_DELAY_MS, MILLISECONDS);
861		assertSame(TEST_STRING, result);
862	<	} catch (ExecutionException success) {
1043	<	} catch (CancellationException success) {
1044	<	} catch(Exception ex) {
1045	<	ex.printStackTrace();
1046	<	unexpectedException();
1047	<	} finally {
1048	<	joinPool(e);
862	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
863		}
864		}
865
866		/**
867	<	* timed invokeAll(null) throws NPE
867	>	* timed invokeAll(null) throws NullPointerException
868		*/
869	<	public void testTimedInvokeAll1() {
869	>	public void testTimedInvokeAll1() throws Throwable {
870		ExecutorService e = new ForkJoinPool(1);
871	<	try {
872	<	e.invokeAll(null, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
873	<	} catch (NullPointerException success) {
874	<	} catch(Exception ex) {
875	<	ex.printStackTrace();
1062	<	unexpectedException();
1063	<	} finally {
1064	<	joinPool(e);
871	>	try (PoolCleaner cleaner = cleaner(e)) {
872	>	try {
873	>	e.invokeAll(null, randomTimeout(), randomTimeUnit());
874	>	shouldThrow();
875	>	} catch (NullPointerException success) {}
876		}
877		}
878
879		/**
880	<	* timed invokeAll(null time unit) throws NPE
880	>	* timed invokeAll(null time unit) throws NullPointerException
881		*/
882	<	public void testTimedInvokeAllNullTimeUnit() {
882	>	public void testTimedInvokeAllNullTimeUnit() throws Throwable {
883		ExecutorService e = new ForkJoinPool(1);
884	<	try {
885	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
884	>	try (PoolCleaner cleaner = cleaner(e)) {
885	>	List<Callable<String>> l = new ArrayList<>();
886		l.add(new StringTask());
887	<	e.invokeAll(l, MEDIUM_DELAY_MS, null);
888	<	} catch (NullPointerException success) {
889	<	} catch(Exception ex) {
890	<	ex.printStackTrace();
1080	<	unexpectedException();
1081	<	} finally {
1082	<	joinPool(e);
887	>	try {
888	>	e.invokeAll(l, randomTimeout(), null);
889	>	shouldThrow();
890	>	} catch (NullPointerException success) {}
891		}
892		}
893
894		/**
895	<	* timed invokeAll(empty collection) returns empty collection
895	>	* timed invokeAll(empty collection) returns empty list
896		*/
897	<	public void testTimedInvokeAll2() {
897	>	public void testTimedInvokeAll2() throws InterruptedException {
898		ExecutorService e = new ForkJoinPool(1);
899	<	try {
900	<	List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
899	>	final Collection<Callable<String>> emptyCollection
900	>	= Collections.emptyList();
901	>	try (PoolCleaner cleaner = cleaner(e)) {
902	>	List<Future<String>> r
903	>	= e.invokeAll(emptyCollection,
904	>	randomTimeout(), randomTimeUnit());
905		assertTrue(r.isEmpty());
1094	–	} catch(Exception ex) {
1095	–	ex.printStackTrace();
1096	–	unexpectedException();
1097	–	} finally {
1098	–	joinPool(e);
906		}
907		}
908
909		/**
910	<	* timed invokeAll(c) throws NPE if c has null elements
910	>	* timed invokeAll(c) throws NullPointerException if c has null elements
911		*/
912	<	public void testTimedInvokeAll3() {
912	>	public void testTimedInvokeAll3() throws InterruptedException {
913		ExecutorService e = new ForkJoinPool(1);
914	<	try {
915	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
914	>	try (PoolCleaner cleaner = cleaner(e)) {
915	>	List<Callable<String>> l = new ArrayList<>();
916		l.add(new StringTask());
917		l.add(null);
918	<	e.invokeAll(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
919	<	} catch (NullPointerException success) {
920	<	} catch(Exception ex) {
921	<	ex.printStackTrace();
1115	<	unexpectedException();
1116	<	} finally {
1117	<	joinPool(e);
918	>	try {
919	>	e.invokeAll(l, randomTimeout(), randomTimeUnit());
920	>	shouldThrow();
921	>	} catch (NullPointerException success) {}
922		}
923		}
924
925		/**
926		* get of returned element of invokeAll(c) throws exception on failed task
927		*/
928	<	public void testTimedInvokeAll4() {
928	>	public void testTimedInvokeAll4() throws Throwable {
929		ExecutorService e = new ForkJoinPool(1);
930	<	try {
931	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
930	>	try (PoolCleaner cleaner = cleaner(e)) {
931	>	List<Callable<String>> l = new ArrayList<>();
932		l.add(new NPETask());
933	<	List<Future<String>> result = e.invokeAll(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
934	<	assertEquals(1, result.size());
935	<	for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
936	<	it.next().get();
937	<	} catch(ExecutionException success) {
938	<	} catch (CancellationException success) {
939	<	} catch(Exception ex) {
940	<	ex.printStackTrace();
941	<	unexpectedException();
1138	<	} finally {
1139	<	joinPool(e);
933	>	List<Future<String>> futures
934	>	= e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS);
935	>	assertEquals(1, futures.size());
936	>	try {
937	>	futures.get(0).get();
938	>	shouldThrow();
939	>	} catch (ExecutionException success) {
940	>	assertTrue(success.getCause() instanceof NullPointerException);
941	>	}
942		}
943		}
944
945		/**
946		* timed invokeAll(c) returns results of all completed tasks in c
947		*/
948	<	public void testTimedInvokeAll5() {
949	<	ExecutorService e = new ForkJoinPool(1);
950	<	try {
951	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
948	>	public void testTimedInvokeAll5() throws Throwable {
949	>	ForkJoinPool e = new ForkJoinPool(1);
950	>	try (PoolCleaner cleaner = cleaner(e)) {
951	>	List<Callable<String>> l = new ArrayList<>();
952		l.add(new StringTask());
953		l.add(new StringTask());
954	<	List<Future<String>> result = e.invokeAll(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
955	<	assertEquals(2, result.size());
956	<	for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
957	<	assertSame(TEST_STRING, it.next().get());
958	<	} catch (ExecutionException success) {
1157	<	} catch (CancellationException success) {
1158	<	} catch(Exception ex) {
1159	<	ex.printStackTrace();
1160	<	unexpectedException();
1161	<	} finally {
1162	<	joinPool(e);
954	>	List<Future<String>> futures
955	>	= e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS);
956	>	assertEquals(2, futures.size());
957	>	for (Future<String> future : futures)
958	>	assertSame(TEST_STRING, future.get());
959		}
960		}
961

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