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Comparing jsr166/src/test/tck/ScheduledExecutorSubclassTest.java (file contents):
Revision 1.19 by jsr166, Tue Mar 15 19:47:07 2011 UTC vs.
Revision 1.74 by jsr166, Wed Jan 27 01:57:24 2021 UTC

#	Line 4 | Line 4
4		* http://creativecommons.org/publicdomain/zero/1.0/
5		*/
6
7	–	import junit.framework.*;
8	–	import java.util.*;
9	–	import java.util.concurrent.*;
7		import static java.util.concurrent.TimeUnit.MILLISECONDS;
8	<	import java.util.concurrent.atomic.*;
8	>	import static java.util.concurrent.TimeUnit.NANOSECONDS;
9	>	import static java.util.concurrent.TimeUnit.SECONDS;
10	>
11	>	import java.util.ArrayList;
12	>	import java.util.Collection;
13	>	import java.util.Collections;
14	>	import java.util.HashSet;
15	>	import java.util.List;
16	>	import java.util.concurrent.BlockingQueue;
17	>	import java.util.concurrent.Callable;
18	>	import java.util.concurrent.CancellationException;
19	>	import java.util.concurrent.CountDownLatch;
20	>	import java.util.concurrent.Delayed;
21	>	import java.util.concurrent.ExecutionException;
22	>	import java.util.concurrent.ExecutorService;
23	>	import java.util.concurrent.Future;
24	>	import java.util.concurrent.RejectedExecutionException;
25	>	import java.util.concurrent.RejectedExecutionHandler;
26	>	import java.util.concurrent.RunnableScheduledFuture;
27	>	import java.util.concurrent.ScheduledFuture;
28	>	import java.util.concurrent.ScheduledThreadPoolExecutor;
29	>	import java.util.concurrent.ThreadFactory;
30	>	import java.util.concurrent.ThreadLocalRandom;
31	>	import java.util.concurrent.ThreadPoolExecutor;
32	>	import java.util.concurrent.TimeoutException;
33	>	import java.util.concurrent.TimeUnit;
34	>	import java.util.concurrent.atomic.AtomicBoolean;
35	>	import java.util.concurrent.atomic.AtomicInteger;
36	>	import java.util.concurrent.atomic.AtomicLong;
37	>	import java.util.stream.Stream;
38	>
39	>	import junit.framework.Test;
40	>	import junit.framework.TestSuite;
41
42		public class ScheduledExecutorSubclassTest extends JSR166TestCase {
43		public static void main(String[] args) {
44	<	junit.textui.TestRunner.run(suite());
44	>	main(suite(), args);
45		}
46		public static Test suite() {
47		return new TestSuite(ScheduledExecutorSubclassTest.class);
48		}
49
50		static class CustomTask<V> implements RunnableScheduledFuture<V> {
51	<	RunnableScheduledFuture<V> task;
51	>	private final RunnableScheduledFuture<V> task;
52		volatile boolean ran;
53	<	CustomTask(RunnableScheduledFuture<V> t) { task = t; }
53	>	CustomTask(RunnableScheduledFuture<V> task) { this.task = task; }
54		public boolean isPeriodic() { return task.isPeriodic(); }
55		public void run() {
56		ran = true;
#	Line 36 | Line 65 | public class ScheduledExecutorSubclassTe
65		}
66		public boolean isCancelled() { return task.isCancelled(); }
67		public boolean isDone() { return task.isDone(); }
68	<	public V get() throws InterruptedException,  ExecutionException {
68	>	public V get() throws InterruptedException, ExecutionException {
69		V v = task.get();
70		assertTrue(ran);
71		return v;
72		}
73	<	public V get(long time, TimeUnit unit) throws InterruptedException,  ExecutionException, TimeoutException {
73	>	public V get(long time, TimeUnit unit) throws InterruptedException, ExecutionException, TimeoutException {
74		V v = task.get(time, unit);
75		assertTrue(ran);
76		return v;
77		}
78		}
79
51	–
80		public class CustomExecutor extends ScheduledThreadPoolExecutor {
81
82		protected <V> RunnableScheduledFuture<V> decorateTask(Runnable r, RunnableScheduledFuture<V> task) {
#	Line 58 | Line 86 | public class ScheduledExecutorSubclassTe
86		protected <V> RunnableScheduledFuture<V> decorateTask(Callable<V> c, RunnableScheduledFuture<V> task) {
87		return new CustomTask<V>(task);
88		}
89	<	CustomExecutor(int corePoolSize) { super(corePoolSize);}
89	>	CustomExecutor(int corePoolSize) { super(corePoolSize); }
90		CustomExecutor(int corePoolSize, RejectedExecutionHandler handler) {
91		super(corePoolSize, handler);
92		}
#	Line 73 | Line 101 | public class ScheduledExecutorSubclassTe
101
102		}
103
76	–
104		/**
105		* execute successfully executes a runnable
106		*/
107		public void testExecute() throws InterruptedException {
108	<	CustomExecutor p = new CustomExecutor(1);
109	<	final CountDownLatch done = new CountDownLatch(1);
110	<	final Runnable task = new CheckedRunnable() {
111	<	public void realRun() {
112	<	done.countDown();
86	<	}};
87	<	try {
108	>	final CustomExecutor p = new CustomExecutor(1);
109	>	try (PoolCleaner cleaner = cleaner(p)) {
110	>	final CountDownLatch done = new CountDownLatch(1);
111	>	final Runnable task = new CheckedRunnable() {
112	>	public void realRun() { done.countDown(); }};
113		p.execute(task);
114	<	assertTrue(done.await(SMALL_DELAY_MS, MILLISECONDS));
90	<	} finally {
91	<	joinPool(p);
114	>	await(done);
115		}
116		}
117
95	–
118		/**
119		* delayed schedule of callable successfully executes after delay
120		*/
121		public void testSchedule1() throws Exception {
100	–	CustomExecutor p = new CustomExecutor(1);
101	–	final long t0 = System.nanoTime();
102	–	final long timeoutNanos = SHORT_DELAY_MS * 1000L * 1000L;
122		final CountDownLatch done = new CountDownLatch(1);
123	<	try {
124	<	Callable task = new CheckedCallable<Boolean>() {
123	>	final CustomExecutor p = new CustomExecutor(1);
124	>	try (PoolCleaner cleaner = cleaner(p, done)) {
125	>	final long startTime = System.nanoTime();
126	>	Callable<Boolean> task = new CheckedCallable<>() {
127		public Boolean realCall() {
128		done.countDown();
129	<	assertTrue(System.nanoTime() - t0 >= timeoutNanos);
129	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
130		return Boolean.TRUE;
131		}};
132	<	Future f = p.schedule(task, SHORT_DELAY_MS, MILLISECONDS);
133	<	assertEquals(Boolean.TRUE, f.get());
134	<	assertTrue(System.nanoTime() - t0 >= timeoutNanos);
114	<	assertTrue(done.await(0L, MILLISECONDS));
115	<	} finally {
116	<	joinPool(p);
132	>	Future<Boolean> f = p.schedule(task, timeoutMillis(), MILLISECONDS);
133	>	assertSame(Boolean.TRUE, f.get());
134	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
135		}
136		}
137
#	Line 121 | Line 139 | public class ScheduledExecutorSubclassTe
139		* delayed schedule of runnable successfully executes after delay
140		*/
141		public void testSchedule3() throws Exception {
142	<	CustomExecutor p = new CustomExecutor(1);
143	<	final long t0 = System.nanoTime();
144	<	final long timeoutNanos = SHORT_DELAY_MS * 1000L * 1000L;
145	<	final CountDownLatch done = new CountDownLatch(1);
128	<	try {
142	>	final CustomExecutor p = new CustomExecutor(1);
143	>	try (PoolCleaner cleaner = cleaner(p)) {
144	>	final long startTime = System.nanoTime();
145	>	final CountDownLatch done = new CountDownLatch(1);
146		Runnable task = new CheckedRunnable() {
147		public void realRun() {
148		done.countDown();
149	<	assertTrue(System.nanoTime() - t0 >= timeoutNanos);
149	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
150		}};
151	<	Future f = p.schedule(task, SHORT_DELAY_MS, MILLISECONDS);
152	<	assertNull(f.get());
153	<	assertTrue(System.nanoTime() - t0 >= timeoutNanos);
154	<	assertTrue(done.await(0L, MILLISECONDS));
138	<	} finally {
139	<	joinPool(p);
151	>	Future<?> f = p.schedule(task, timeoutMillis(), MILLISECONDS);
152	>	await(done);
153	>	assertNull(f.get(LONG_DELAY_MS, MILLISECONDS));
154	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
155		}
156		}
157
#	Line 144 | Line 159 | public class ScheduledExecutorSubclassTe
159		* scheduleAtFixedRate executes runnable after given initial delay
160		*/
161		public void testSchedule4() throws InterruptedException {
162	<	CustomExecutor p = new CustomExecutor(1);
163	<	final long t0 = System.nanoTime();
164	<	final long timeoutNanos = SHORT_DELAY_MS * 1000L * 1000L;
165	<	final CountDownLatch done = new CountDownLatch(1);
151	<	try {
162	>	final CustomExecutor p = new CustomExecutor(1);
163	>	try (PoolCleaner cleaner = cleaner(p)) {
164	>	final long startTime = System.nanoTime();
165	>	final CountDownLatch done = new CountDownLatch(1);
166		Runnable task = new CheckedRunnable() {
167		public void realRun() {
168		done.countDown();
169	<	assertTrue(System.nanoTime() - t0 >= timeoutNanos);
169	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
170		}};
171	<	ScheduledFuture f =
172	<	p.scheduleAtFixedRate(task, SHORT_DELAY_MS,
173	<	SHORT_DELAY_MS, MILLISECONDS);
174	<	assertTrue(done.await(SMALL_DELAY_MS, MILLISECONDS));
175	<	assertTrue(System.nanoTime() - t0 >= timeoutNanos);
171	>	ScheduledFuture<?> f =
172	>	p.scheduleAtFixedRate(task, timeoutMillis(),
173	>	LONG_DELAY_MS, MILLISECONDS);
174	>	await(done);
175	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
176		f.cancel(true);
163	–	} finally {
164	–	joinPool(p);
177		}
178		}
179
#	Line 169 | Line 181 | public class ScheduledExecutorSubclassTe
181		* scheduleWithFixedDelay executes runnable after given initial delay
182		*/
183		public void testSchedule5() throws InterruptedException {
184	<	CustomExecutor p = new CustomExecutor(1);
185	<	final long t0 = System.nanoTime();
186	<	final long timeoutNanos = SHORT_DELAY_MS * 1000L * 1000L;
187	<	final CountDownLatch done = new CountDownLatch(1);
176	<	try {
184	>	final CustomExecutor p = new CustomExecutor(1);
185	>	try (PoolCleaner cleaner = cleaner(p)) {
186	>	final long startTime = System.nanoTime();
187	>	final CountDownLatch done = new CountDownLatch(1);
188		Runnable task = new CheckedRunnable() {
189		public void realRun() {
190		done.countDown();
191	<	assertTrue(System.nanoTime() - t0 >= timeoutNanos);
191	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
192		}};
193	<	ScheduledFuture f =
194	<	p.scheduleWithFixedDelay(task, SHORT_DELAY_MS,
195	<	SHORT_DELAY_MS, MILLISECONDS);
196	<	assertTrue(done.await(SMALL_DELAY_MS, MILLISECONDS));
197	<	assertTrue(System.nanoTime() - t0 >= timeoutNanos);
193	>	ScheduledFuture<?> f =
194	>	p.scheduleWithFixedDelay(task, timeoutMillis(),
195	>	LONG_DELAY_MS, MILLISECONDS);
196	>	await(done);
197	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
198		f.cancel(true);
188	–	} finally {
189	–	joinPool(p);
199		}
200		}
201
#	Line 196 | Line 205 | public class ScheduledExecutorSubclassTe
205		}
206
207		/**
208	<	* scheduleAtFixedRate executes series of tasks at given rate
208	>	* scheduleAtFixedRate executes series of tasks at given rate.
209	>	* Eventually, it must hold that:
210	>	*   cycles - 1 <= elapsedMillis/delay < cycles
211		*/
212		public void testFixedRateSequence() throws InterruptedException {
213	<	CustomExecutor p = new CustomExecutor(1);
214	<	RunnableCounter counter = new RunnableCounter();
215	<	ScheduledFuture h =
216	<	p.scheduleAtFixedRate(counter, 0, 1, MILLISECONDS);
217	<	Thread.sleep(SMALL_DELAY_MS);
218	<	h.cancel(true);
219	<	int c = counter.count.get();
220	<	// By time scaling conventions, we must have at least
221	<	// an execution per SHORT delay, but no more than one SHORT more
222	<	assertTrue(c >= SMALL_DELAY_MS / SHORT_DELAY_MS);
223	<	assertTrue(c <= SMALL_DELAY_MS + SHORT_DELAY_MS);
224	<	joinPool(p);
213	>	final CustomExecutor p = new CustomExecutor(1);
214	>	try (PoolCleaner cleaner = cleaner(p)) {
215	>	for (int delay = 1; delay <= LONG_DELAY_MS; delay *= 3) {
216	>	final long startTime = System.nanoTime();
217	>	final int cycles = 8;
218	>	final CountDownLatch done = new CountDownLatch(cycles);
219	>	final Runnable task = new CheckedRunnable() {
220	>	public void realRun() { done.countDown(); }};
221	>	final ScheduledFuture<?> periodicTask =
222	>	p.scheduleAtFixedRate(task, 0, delay, MILLISECONDS);
223	>	final int totalDelayMillis = (cycles - 1) * delay;
224	>	await(done, totalDelayMillis + LONG_DELAY_MS);
225	>	periodicTask.cancel(true);
226	>	final long elapsedMillis = millisElapsedSince(startTime);
227	>	assertTrue(elapsedMillis >= totalDelayMillis);
228	>	if (elapsedMillis <= cycles * delay)
229	>	return;
230	>	// else retry with longer delay
231	>	}
232	>	fail("unexpected execution rate");
233	>	}
234		}
235
236		/**
237	<	* scheduleWithFixedDelay executes series of tasks with given period
237	>	* scheduleWithFixedDelay executes series of tasks with given period.
238	>	* Eventually, it must hold that each task starts at least delay and at
239	>	* most 2 * delay after the termination of the previous task.
240		*/
241		public void testFixedDelaySequence() throws InterruptedException {
242	<	CustomExecutor p = new CustomExecutor(1);
243	<	RunnableCounter counter = new RunnableCounter();
244	<	ScheduledFuture h =
245	<	p.scheduleWithFixedDelay(counter, 0, 1, MILLISECONDS);
246	<	Thread.sleep(SMALL_DELAY_MS);
247	<	h.cancel(true);
248	<	int c = counter.count.get();
249	<	assertTrue(c >= SMALL_DELAY_MS / SHORT_DELAY_MS);
250	<	assertTrue(c <= SMALL_DELAY_MS + SHORT_DELAY_MS);
251	<	joinPool(p);
252	<	}
253	<
254	<
255	<	/**
256	<	* execute(null) throws NPE
257	<	*/
258	<	public void testExecuteNull() throws InterruptedException {
259	<	CustomExecutor se = new CustomExecutor(1);
260	<	try {
261	<	se.execute(null);
262	<	shouldThrow();
263	<	} catch (NullPointerException success) {}
264	<	joinPool(se);
242	>	final CustomExecutor p = new CustomExecutor(1);
243	>	try (PoolCleaner cleaner = cleaner(p)) {
244	>	for (int delay = 1; delay <= LONG_DELAY_MS; delay *= 3) {
245	>	final long startTime = System.nanoTime();
246	>	final AtomicLong previous = new AtomicLong(startTime);
247	>	final AtomicBoolean tryLongerDelay = new AtomicBoolean(false);
248	>	final int cycles = 8;
249	>	final CountDownLatch done = new CountDownLatch(cycles);
250	>	final int d = delay;
251	>	final Runnable task = new CheckedRunnable() {
252	>	public void realRun() {
253	>	long now = System.nanoTime();
254	>	long elapsedMillis
255	>	= NANOSECONDS.toMillis(now - previous.get());
256	>	if (done.getCount() == cycles) { // first execution
257	>	if (elapsedMillis >= d)
258	>	tryLongerDelay.set(true);
259	>	} else {
260	>	assertTrue(elapsedMillis >= d);
261	>	if (elapsedMillis >= 2 * d)
262	>	tryLongerDelay.set(true);
263	>	}
264	>	previous.set(now);
265	>	done.countDown();
266	>	}};
267	>	final ScheduledFuture<?> periodicTask =
268	>	p.scheduleWithFixedDelay(task, 0, delay, MILLISECONDS);
269	>	final int totalDelayMillis = (cycles - 1) * delay;
270	>	await(done, totalDelayMillis + cycles * LONG_DELAY_MS);
271	>	periodicTask.cancel(true);
272	>	final long elapsedMillis = millisElapsedSince(startTime);
273	>	assertTrue(elapsedMillis >= totalDelayMillis);
274	>	if (!tryLongerDelay.get())
275	>	return;
276	>	// else retry with longer delay
277	>	}
278	>	fail("unexpected execution rate");
279	>	}
280		}
281
282		/**
283	<	* schedule(null) throws NPE
283	>	* Submitting null tasks throws NullPointerException
284		*/
285	<	public void testScheduleNull() throws InterruptedException {
286	<	CustomExecutor se = new CustomExecutor(1);
287	<	try {
288	<	TrackedCallable callable = null;
289	<	Future f = se.schedule(callable, SHORT_DELAY_MS, MILLISECONDS);
253	<	shouldThrow();
254	<	} catch (NullPointerException success) {}
255	<	joinPool(se);
285	>	public void testNullTaskSubmission() {
286	>	final CustomExecutor p = new CustomExecutor(1);
287	>	try (PoolCleaner cleaner = cleaner(p)) {
288	>	assertNullTaskSubmissionThrowsNullPointerException(p);
289	>	}
290		}
291
292		/**
293	<	* execute throws RejectedExecutionException if shutdown
293	>	* Submitted tasks are rejected when shutdown
294		*/
295	<	public void testSchedule1_RejectedExecutionException() {
296	<	CustomExecutor se = new CustomExecutor(1);
297	<	try {
298	<	se.shutdown();
299	<	se.schedule(new NoOpRunnable(),
300	<	MEDIUM_DELAY_MS, MILLISECONDS);
301	<	shouldThrow();
302	<	} catch (RejectedExecutionException success) {
303	<	} catch (SecurityException ok) {
304	<	}
295	>	public void testSubmittedTasksRejectedWhenShutdown() throws InterruptedException {
296	>	final CustomExecutor p = new CustomExecutor(2);
297	>	final ThreadLocalRandom rnd = ThreadLocalRandom.current();
298	>	final CountDownLatch threadsStarted = new CountDownLatch(p.getCorePoolSize());
299	>	final CountDownLatch done = new CountDownLatch(1);
300	>	final Runnable r = () -> {
301	>	threadsStarted.countDown();
302	>	for (;;) {
303	>	try {
304	>	done.await();
305	>	return;
306	>	} catch (InterruptedException shutdownNowDeliberatelyIgnored) {}
307	>	}};
308	>	final Callable<Boolean> c = () -> {
309	>	threadsStarted.countDown();
310	>	for (;;) {
311	>	try {
312	>	done.await();
313	>	return Boolean.TRUE;
314	>	} catch (InterruptedException shutdownNowDeliberatelyIgnored) {}
315	>	}};
316
317	<	joinPool(se);
318	<	}
317	>	try (PoolCleaner cleaner = cleaner(p, done)) {
318	>	for (int i = p.getCorePoolSize(); i--> 0; ) {
319	>	switch (rnd.nextInt(4)) {
320	>	case 0: p.execute(r); break;
321	>	case 1: assertFalse(p.submit(r).isDone()); break;
322	>	case 2: assertFalse(p.submit(r, Boolean.TRUE).isDone()); break;
323	>	case 3: assertFalse(p.submit(c).isDone()); break;
324	>	}
325	>	}
326
327	<	/**
328	<	* schedule throws RejectedExecutionException if shutdown
277	<	*/
278	<	public void testSchedule2_RejectedExecutionException() {
279	<	CustomExecutor se = new CustomExecutor(1);
280	<	try {
281	<	se.shutdown();
282	<	se.schedule(new NoOpCallable(),
283	<	MEDIUM_DELAY_MS, MILLISECONDS);
284	<	shouldThrow();
285	<	} catch (RejectedExecutionException success) {
286	<	} catch (SecurityException ok) {
287	<	}
288	<	joinPool(se);
289	<	}
327	>	// ScheduledThreadPoolExecutor has an unbounded queue, so never saturated.
328	>	await(threadsStarted);
329
330	<	/**
331	<	* schedule callable throws RejectedExecutionException if shutdown
332	<	*/
333	<	public void testSchedule3_RejectedExecutionException() {
334	<	CustomExecutor se = new CustomExecutor(1);
335	<	try {
336	<	se.shutdown();
298	<	se.schedule(new NoOpCallable(),
299	<	MEDIUM_DELAY_MS, MILLISECONDS);
300	<	shouldThrow();
301	<	} catch (RejectedExecutionException success) {
302	<	} catch (SecurityException ok) {
303	<	}
304	<	joinPool(se);
305	<	}
330	>	if (rnd.nextBoolean())
331	>	p.shutdownNow();
332	>	else
333	>	p.shutdown();
334	>	// Pool is shutdown, but not yet terminated
335	>	assertTaskSubmissionsAreRejected(p);
336	>	assertFalse(p.isTerminated());
337
338	<	/**
339	<	* scheduleAtFixedRate throws RejectedExecutionException if shutdown
309	<	*/
310	<	public void testScheduleAtFixedRate1_RejectedExecutionException() {
311	<	CustomExecutor se = new CustomExecutor(1);
312	<	try {
313	<	se.shutdown();
314	<	se.scheduleAtFixedRate(new NoOpRunnable(),
315	<	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS);
316	<	shouldThrow();
317	<	} catch (RejectedExecutionException success) {
318	<	} catch (SecurityException ok) {
319	<	}
320	<	joinPool(se);
321	<	}
338	>	done.countDown();   // release blocking tasks
339	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
340
341	<	/**
324	<	* scheduleWithFixedDelay throws RejectedExecutionException if shutdown
325	<	*/
326	<	public void testScheduleWithFixedDelay1_RejectedExecutionException() {
327	<	CustomExecutor se = new CustomExecutor(1);
328	<	try {
329	<	se.shutdown();
330	<	se.scheduleWithFixedDelay(new NoOpRunnable(),
331	<	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS);
332	<	shouldThrow();
333	<	} catch (RejectedExecutionException success) {
334	<	} catch (SecurityException ok) {
341	>	assertTaskSubmissionsAreRejected(p);
342		}
343	<	joinPool(se);
343	>	assertEquals(p.getCorePoolSize(), p.getCompletedTaskCount());
344		}
345
346		/**
#	Line 341 | Line 348 | public class ScheduledExecutorSubclassTe
348		* thread becomes active
349		*/
350		public void testGetActiveCount() throws InterruptedException {
344	–	final ThreadPoolExecutor p = new CustomExecutor(2);
345	–	final CountDownLatch threadStarted = new CountDownLatch(1);
351		final CountDownLatch done = new CountDownLatch(1);
352	<	try {
352	>	final ThreadPoolExecutor p = new CustomExecutor(2);
353	>	try (PoolCleaner cleaner = cleaner(p, done)) {
354	>	final CountDownLatch threadStarted = new CountDownLatch(1);
355		assertEquals(0, p.getActiveCount());
356		p.execute(new CheckedRunnable() {
357		public void realRun() throws InterruptedException {
358		threadStarted.countDown();
359		assertEquals(1, p.getActiveCount());
360	<	done.await();
360	>	await(done);
361		}});
362	<	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
362	>	await(threadStarted);
363		assertEquals(1, p.getActiveCount());
357	–	} finally {
358	–	done.countDown();
359	–	joinPool(p);
364		}
365		}
366
#	Line 366 | Line 370 | public class ScheduledExecutorSubclassTe
370		*/
371		public void testGetCompletedTaskCount() throws InterruptedException {
372		final ThreadPoolExecutor p = new CustomExecutor(2);
373	<	final CountDownLatch threadStarted = new CountDownLatch(1);
374	<	final CountDownLatch threadProceed = new CountDownLatch(1);
375	<	final CountDownLatch threadDone = new CountDownLatch(1);
376	<	try {
373	>	try (PoolCleaner cleaner = cleaner(p)) {
374	>	final CountDownLatch threadStarted = new CountDownLatch(1);
375	>	final CountDownLatch threadProceed = new CountDownLatch(1);
376	>	final CountDownLatch threadDone = new CountDownLatch(1);
377		assertEquals(0, p.getCompletedTaskCount());
378		p.execute(new CheckedRunnable() {
379		public void realRun() throws InterruptedException {
380		threadStarted.countDown();
381		assertEquals(0, p.getCompletedTaskCount());
382	<	threadProceed.await();
382	>	await(threadProceed);
383		threadDone.countDown();
384		}});
385	<	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
385	>	await(threadStarted);
386		assertEquals(0, p.getCompletedTaskCount());
387		threadProceed.countDown();
388	<	threadDone.await();
389	<	Thread.sleep(SHORT_DELAY_MS);
390	<	assertEquals(1, p.getCompletedTaskCount());
391	<	} finally {
392	<	joinPool(p);
388	>	await(threadDone);
389	>	long startTime = System.nanoTime();
390	>	while (p.getCompletedTaskCount() != 1) {
391	>	if (millisElapsedSince(startTime) > LONG_DELAY_MS)
392	>	fail("timed out");
393	>	Thread.yield();
394	>	}
395		}
396		}
397
#	Line 393 | Line 399 | public class ScheduledExecutorSubclassTe
399		* getCorePoolSize returns size given in constructor if not otherwise set
400		*/
401		public void testGetCorePoolSize() {
402	<	CustomExecutor p = new CustomExecutor(1);
403	<	assertEquals(1, p.getCorePoolSize());
404	<	joinPool(p);
402	>	final CustomExecutor p = new CustomExecutor(1);
403	>	try (PoolCleaner cleaner = cleaner(p)) {
404	>	assertEquals(1, p.getCorePoolSize());
405	>	}
406		}
407
408		/**
#	Line 404 | Line 411 | public class ScheduledExecutorSubclassTe
411		*/
412		public void testGetLargestPoolSize() throws InterruptedException {
413		final int THREADS = 3;
407	–	final ThreadPoolExecutor p = new CustomExecutor(THREADS);
408	–	final CountDownLatch threadsStarted = new CountDownLatch(THREADS);
414		final CountDownLatch done = new CountDownLatch(1);
415	<	try {
415	>	final ThreadPoolExecutor p = new CustomExecutor(THREADS);
416	>	try (PoolCleaner cleaner = cleaner(p, done)) {
417	>	final CountDownLatch threadsStarted = new CountDownLatch(THREADS);
418		assertEquals(0, p.getLargestPoolSize());
419		for (int i = 0; i < THREADS; i++)
420		p.execute(new CheckedRunnable() {
421		public void realRun() throws InterruptedException {
422		threadsStarted.countDown();
423	<	done.await();
423	>	await(done);
424		assertEquals(THREADS, p.getLargestPoolSize());
425		}});
426	<	assertTrue(threadsStarted.await(SMALL_DELAY_MS, MILLISECONDS));
420	<	assertEquals(THREADS, p.getLargestPoolSize());
421	<	} finally {
422	<	done.countDown();
423	<	joinPool(p);
426	>	await(threadsStarted);
427		assertEquals(THREADS, p.getLargestPoolSize());
428		}
429	+	assertEquals(THREADS, p.getLargestPoolSize());
430		}
431
432		/**
#	Line 430 | Line 434 | public class ScheduledExecutorSubclassTe
434		* become active
435		*/
436		public void testGetPoolSize() throws InterruptedException {
433	–	final ThreadPoolExecutor p = new CustomExecutor(1);
434	–	final CountDownLatch threadStarted = new CountDownLatch(1);
437		final CountDownLatch done = new CountDownLatch(1);
438	<	try {
438	>	final ThreadPoolExecutor p = new CustomExecutor(1);
439	>	try (PoolCleaner cleaner = cleaner(p, done)) {
440	>	final CountDownLatch threadStarted = new CountDownLatch(1);
441		assertEquals(0, p.getPoolSize());
442		p.execute(new CheckedRunnable() {
443		public void realRun() throws InterruptedException {
444		threadStarted.countDown();
445		assertEquals(1, p.getPoolSize());
446	<	done.await();
446	>	await(done);
447		}});
448	<	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
448	>	await(threadStarted);
449		assertEquals(1, p.getPoolSize());
446	–	} finally {
447	–	done.countDown();
448	–	joinPool(p);
450		}
451		}
452
#	Line 454 | Line 455 | public class ScheduledExecutorSubclassTe
455		* submitted
456		*/
457		public void testGetTaskCount() throws InterruptedException {
458	<	final ThreadPoolExecutor p = new CustomExecutor(1);
458	<	final CountDownLatch threadStarted = new CountDownLatch(1);
458	>	final int TASKS = 3;
459		final CountDownLatch done = new CountDownLatch(1);
460	<	final int TASKS = 5;
461	<	try {
460	>	final ThreadPoolExecutor p = new CustomExecutor(1);
461	>	try (PoolCleaner cleaner = cleaner(p, done)) {
462	>	final CountDownLatch threadStarted = new CountDownLatch(1);
463		assertEquals(0, p.getTaskCount());
464	<	for (int i = 0; i < TASKS; i++)
464	>	assertEquals(0, p.getCompletedTaskCount());
465	>	p.execute(new CheckedRunnable() {
466	>	public void realRun() throws InterruptedException {
467	>	threadStarted.countDown();
468	>	await(done);
469	>	}});
470	>	await(threadStarted);
471	>	assertEquals(1, p.getTaskCount());
472	>	assertEquals(0, p.getCompletedTaskCount());
473	>	for (int i = 0; i < TASKS; i++) {
474	>	assertEquals(1 + i, p.getTaskCount());
475		p.execute(new CheckedRunnable() {
476		public void realRun() throws InterruptedException {
477		threadStarted.countDown();
478	<	done.await();
478	>	assertEquals(1 + TASKS, p.getTaskCount());
479	>	await(done);
480		}});
481	<	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
482	<	assertEquals(TASKS, p.getTaskCount());
483	<	} finally {
472	<	done.countDown();
473	<	joinPool(p);
481	>	}
482	>	assertEquals(1 + TASKS, p.getTaskCount());
483	>	assertEquals(0, p.getCompletedTaskCount());
484		}
485	+	assertEquals(1 + TASKS, p.getTaskCount());
486	+	assertEquals(1 + TASKS, p.getCompletedTaskCount());
487		}
488
489		/**
490		* getThreadFactory returns factory in constructor if not set
491		*/
492		public void testGetThreadFactory() {
493	<	ThreadFactory tf = new SimpleThreadFactory();
494	<	CustomExecutor p = new CustomExecutor(1, tf);
495	<	assertSame(tf, p.getThreadFactory());
496	<	joinPool(p);
493	>	final ThreadFactory threadFactory = new SimpleThreadFactory();
494	>	final CustomExecutor p = new CustomExecutor(1, threadFactory);
495	>	try (PoolCleaner cleaner = cleaner(p)) {
496	>	assertSame(threadFactory, p.getThreadFactory());
497	>	}
498		}
499
500		/**
501		* setThreadFactory sets the thread factory returned by getThreadFactory
502		*/
503		public void testSetThreadFactory() {
504	<	ThreadFactory tf = new SimpleThreadFactory();
505	<	CustomExecutor p = new CustomExecutor(1);
506	<	p.setThreadFactory(tf);
507	<	assertSame(tf, p.getThreadFactory());
508	<	joinPool(p);
504	>	final ThreadFactory threadFactory = new SimpleThreadFactory();
505	>	final CustomExecutor p = new CustomExecutor(1);
506	>	try (PoolCleaner cleaner = cleaner(p)) {
507	>	p.setThreadFactory(threadFactory);
508	>	assertSame(threadFactory, p.getThreadFactory());
509	>	}
510		}
511
512		/**
513		* setThreadFactory(null) throws NPE
514		*/
515		public void testSetThreadFactoryNull() {
516	<	CustomExecutor p = new CustomExecutor(1);
517	<	try {
518	<	p.setThreadFactory(null);
519	<	shouldThrow();
520	<	} catch (NullPointerException success) {
521	<	} finally {
508	<	joinPool(p);
516	>	final CustomExecutor p = new CustomExecutor(1);
517	>	try (PoolCleaner cleaner = cleaner(p)) {
518	>	try {
519	>	p.setThreadFactory(null);
520	>	shouldThrow();
521	>	} catch (NullPointerException success) {}
522		}
523		}
524
525		/**
526	<	* isShutDown is false before shutdown, true after
526	>	* isShutdown is false before shutdown, true after
527		*/
528		public void testIsShutdown() {
529	<	CustomExecutor p = new CustomExecutor(1);
530	<	try {
529	>	final CustomExecutor p = new CustomExecutor(1);
530	>	try (PoolCleaner cleaner = cleaner(p)) {
531		assertFalse(p.isShutdown());
519	–	}
520	–	finally {
532		try { p.shutdown(); } catch (SecurityException ok) { return; }
533	+	assertTrue(p.isShutdown());
534		}
523	–	assertTrue(p.isShutdown());
535		}
536
526	–
537		/**
538		* isTerminated is false before termination, true after
539		*/
540		public void testIsTerminated() throws InterruptedException {
531	–	final ThreadPoolExecutor p = new CustomExecutor(1);
532	–	final CountDownLatch threadStarted = new CountDownLatch(1);
541		final CountDownLatch done = new CountDownLatch(1);
542	<	assertFalse(p.isTerminated());
543	<	try {
542	>	final ThreadPoolExecutor p = new CustomExecutor(1);
543	>	try (PoolCleaner cleaner = cleaner(p)) {
544	>	final CountDownLatch threadStarted = new CountDownLatch(1);
545		p.execute(new CheckedRunnable() {
546		public void realRun() throws InterruptedException {
547		assertFalse(p.isTerminated());
548		threadStarted.countDown();
549	<	done.await();
549	>	await(done);
550		}});
551	<	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
551	>	await(threadStarted);
552	>	assertFalse(p.isTerminated());
553		assertFalse(p.isTerminating());
554		done.countDown();
545	–	} finally {
555		try { p.shutdown(); } catch (SecurityException ok) { return; }
556	+	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
557	+	assertTrue(p.isTerminated());
558		}
548	–	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
549	–	assertTrue(p.isTerminated());
559		}
560
561		/**
562		* isTerminating is not true when running or when terminated
563		*/
564		public void testIsTerminating() throws InterruptedException {
556	–	final ThreadPoolExecutor p = new CustomExecutor(1);
557	–	final CountDownLatch threadStarted = new CountDownLatch(1);
565		final CountDownLatch done = new CountDownLatch(1);
566	<	try {
566	>	final ThreadPoolExecutor p = new CustomExecutor(1);
567	>	try (PoolCleaner cleaner = cleaner(p)) {
568	>	final CountDownLatch threadStarted = new CountDownLatch(1);
569		assertFalse(p.isTerminating());
570		p.execute(new CheckedRunnable() {
571		public void realRun() throws InterruptedException {
572		assertFalse(p.isTerminating());
573		threadStarted.countDown();
574	<	done.await();
574	>	await(done);
575		}});
576	<	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
576	>	await(threadStarted);
577		assertFalse(p.isTerminating());
578		done.countDown();
570	–	} finally {
579		try { p.shutdown(); } catch (SecurityException ok) { return; }
580	+	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
581	+	assertTrue(p.isTerminated());
582	+	assertFalse(p.isTerminating());
583		}
573	–	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
574	–	assertTrue(p.isTerminated());
575	–	assertFalse(p.isTerminating());
584		}
585
586		/**
587		* getQueue returns the work queue, which contains queued tasks
588		*/
589		public void testGetQueue() throws InterruptedException {
582	–	ScheduledThreadPoolExecutor p = new CustomExecutor(1);
583	–	final CountDownLatch threadStarted = new CountDownLatch(1);
590		final CountDownLatch done = new CountDownLatch(1);
591	<	try {
592	<	ScheduledFuture[] tasks = new ScheduledFuture[5];
591	>	final ScheduledThreadPoolExecutor p = new CustomExecutor(1);
592	>	try (PoolCleaner cleaner = cleaner(p, done)) {
593	>	final CountDownLatch threadStarted = new CountDownLatch(1);
594	>	@SuppressWarnings("unchecked")
595	>	ScheduledFuture<?>[] tasks = (ScheduledFuture<?>[])new ScheduledFuture[5];
596		for (int i = 0; i < tasks.length; i++) {
597		Runnable r = new CheckedRunnable() {
598		public void realRun() throws InterruptedException {
599		threadStarted.countDown();
600	<	done.await();
600	>	await(done);
601		}};
602		tasks[i] = p.schedule(r, 1, MILLISECONDS);
603		}
604	<	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
604	>	await(threadStarted);
605		BlockingQueue<Runnable> q = p.getQueue();
606		assertTrue(q.contains(tasks[tasks.length - 1]));
607		assertFalse(q.contains(tasks[0]));
599	–	} finally {
600	–	done.countDown();
601	–	joinPool(p);
608		}
609		}
610
#	Line 606 | Line 612 | public class ScheduledExecutorSubclassTe
612		* remove(task) removes queued task, and fails to remove active task
613		*/
614		public void testRemove() throws InterruptedException {
609	–	final ScheduledThreadPoolExecutor p = new CustomExecutor(1);
610	–	ScheduledFuture[] tasks = new ScheduledFuture[5];
611	–	final CountDownLatch threadStarted = new CountDownLatch(1);
615		final CountDownLatch done = new CountDownLatch(1);
616	<	try {
616	>	final ScheduledThreadPoolExecutor p = new CustomExecutor(1);
617	>	try (PoolCleaner cleaner = cleaner(p, done)) {
618	>	@SuppressWarnings("unchecked")
619	>	ScheduledFuture<?>[] tasks = (ScheduledFuture<?>[])new ScheduledFuture[5];
620	>	final CountDownLatch threadStarted = new CountDownLatch(1);
621		for (int i = 0; i < tasks.length; i++) {
622		Runnable r = new CheckedRunnable() {
623		public void realRun() throws InterruptedException {
624		threadStarted.countDown();
625	<	done.await();
625	>	await(done);
626		}};
627		tasks[i] = p.schedule(r, 1, MILLISECONDS);
628		}
629	<	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
629	>	await(threadStarted);
630		BlockingQueue<Runnable> q = p.getQueue();
631		assertFalse(p.remove((Runnable)tasks[0]));
632		assertTrue(q.contains((Runnable)tasks[4]));
#	Line 630 | Line 637 | public class ScheduledExecutorSubclassTe
637		assertTrue(q.contains((Runnable)tasks[3]));
638		assertTrue(p.remove((Runnable)tasks[3]));
639		assertFalse(q.contains((Runnable)tasks[3]));
633	–	} finally {
634	–	done.countDown();
635	–	joinPool(p);
640		}
641		}
642
#	Line 640 | Line 644 | public class ScheduledExecutorSubclassTe
644		* purge removes cancelled tasks from the queue
645		*/
646		public void testPurge() throws InterruptedException {
647	<	CustomExecutor p = new CustomExecutor(1);
648	<	ScheduledFuture[] tasks = new ScheduledFuture[5];
649	<	for (int i = 0; i < tasks.length; i++) {
650	<	tasks[i] = p.schedule(new SmallPossiblyInterruptedRunnable(), SHORT_DELAY_MS, MILLISECONDS);
651	<	}
652	<	try {
647	>	@SuppressWarnings("unchecked")
648	>	ScheduledFuture<?>[] tasks = (ScheduledFuture<?>[])new ScheduledFuture[5];
649	>	final Runnable releaser = new Runnable() { public void run() {
650	>	for (ScheduledFuture<?> task : tasks)
651	>	if (task != null) task.cancel(true); }};
652	>	final CustomExecutor p = new CustomExecutor(1);
653	>	try (PoolCleaner cleaner = cleaner(p, releaser)) {
654	>	for (int i = 0; i < tasks.length; i++)
655	>	tasks[i] = p.schedule(possiblyInterruptedRunnable(SMALL_DELAY_MS),
656	>	LONG_DELAY_MS, MILLISECONDS);
657		int max = tasks.length;
658		if (tasks[4].cancel(true)) --max;
659		if (tasks[3].cancel(true)) --max;
660		// There must eventually be an interference-free point at
661		// which purge will not fail. (At worst, when queue is empty.)
662	<	int k;
663	<	for (k = 0; k < SMALL_DELAY_MS; ++k) {
662	>	long startTime = System.nanoTime();
663	>	do {
664		p.purge();
665		long count = p.getTaskCount();
666	<	if (count >= 0 && count <= max)
667	<	break;
668	<	Thread.sleep(1);
669	<	}
662	<	assertTrue(k < SMALL_DELAY_MS);
663	<	} finally {
664	<	for (ScheduledFuture task : tasks)
665	<	task.cancel(true);
666	<	joinPool(p);
666	>	if (count == max)
667	>	return;
668	>	} while (millisElapsedSince(startTime) < LONG_DELAY_MS);
669	>	fail("Purge failed to remove cancelled tasks");
670		}
671		}
672
673		/**
674	<	* shutDownNow returns a list containing tasks that were not run
675	<	*/
676	<	public void testShutDownNow() {
677	<	CustomExecutor p = new CustomExecutor(1);
678	<	for (int i = 0; i < 5; i++)
679	<	p.schedule(new SmallPossiblyInterruptedRunnable(), SHORT_DELAY_MS, MILLISECONDS);
680	<	List l;
674	>	* shutdownNow returns a list containing tasks that were not run,
675	>	* and those tasks are drained from the queue
676	>	*/
677	>	public void testShutdownNow() throws InterruptedException {
678	>	final int poolSize = 2;
679	>	final int count = 5;
680	>	final AtomicInteger ran = new AtomicInteger(0);
681	>	final CustomExecutor p = new CustomExecutor(poolSize);
682	>	final CountDownLatch threadsStarted = new CountDownLatch(poolSize);
683	>	Runnable waiter = new CheckedRunnable() { public void realRun() {
684	>	threadsStarted.countDown();
685	>	try {
686	>	MILLISECONDS.sleep(LONGER_DELAY_MS);
687	>	} catch (InterruptedException success) {}
688	>	ran.getAndIncrement();
689	>	}};
690	>	for (int i = 0; i < count; i++)
691	>	p.execute(waiter);
692	>	await(threadsStarted);
693	>	assertEquals(poolSize, p.getActiveCount());
694	>	assertEquals(0, p.getCompletedTaskCount());
695	>	final List<Runnable> queuedTasks;
696		try {
697	<	l = p.shutdownNow();
697	>	queuedTasks = p.shutdownNow();
698		} catch (SecurityException ok) {
699	<	return;
699	>	return; // Allowed in case test doesn't have privs
700		}
701		assertTrue(p.isShutdown());
702	<	assertTrue(l.size() > 0 && l.size() <= 5);
703	<	joinPool(p);
702	>	assertTrue(p.getQueue().isEmpty());
703	>	assertEquals(count - poolSize, queuedTasks.size());
704	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
705	>	assertTrue(p.isTerminated());
706	>	assertEquals(poolSize, ran.get());
707	>	assertEquals(poolSize, p.getCompletedTaskCount());
708		}
709
710		/**
711	<	* In default setting, shutdown cancels periodic but not delayed
712	<	* tasks at shutdown
711	>	* shutdownNow returns a list containing tasks that were not run,
712	>	* and those tasks are drained from the queue
713		*/
714	<	public void testShutDown1() throws InterruptedException {
715	<	CustomExecutor p = new CustomExecutor(1);
716	<	assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
717	<	assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
718	<
719	<	ScheduledFuture[] tasks = new ScheduledFuture[5];
720	<	for (int i = 0; i < tasks.length; i++)
721	<	tasks[i] = p.schedule(new NoOpRunnable(),
722	<	SHORT_DELAY_MS, MILLISECONDS);
723	<	try { p.shutdown(); } catch (SecurityException ok) { return; }
724	<	BlockingQueue<Runnable> q = p.getQueue();
725	<	for (ScheduledFuture task : tasks) {
726	<	assertFalse(task.isDone());
727	<	assertFalse(task.isCancelled());
728	<	assertTrue(q.contains(task));
714	>	public void testShutdownNow_delayedTasks() throws InterruptedException {
715	>	final CustomExecutor p = new CustomExecutor(1);
716	>	List<ScheduledFuture<?>> tasks = new ArrayList<>();
717	>	for (int i = 0; i < 3; i++) {
718	>	Runnable r = new NoOpRunnable();
719	>	tasks.add(p.schedule(r, 9, SECONDS));
720	>	tasks.add(p.scheduleAtFixedRate(r, 9, 9, SECONDS));
721	>	tasks.add(p.scheduleWithFixedDelay(r, 9, 9, SECONDS));
722	>	}
723	>	if (testImplementationDetails)
724	>	assertEquals(new HashSet<Object>(tasks), new HashSet<Object>(p.getQueue()));
725	>	final List<Runnable> queuedTasks;
726	>	try {
727	>	queuedTasks = p.shutdownNow();
728	>	} catch (SecurityException ok) {
729	>	return; // Allowed in case test doesn't have privs
730		}
731		assertTrue(p.isShutdown());
732	<	assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS));
733	<	assertTrue(p.isTerminated());
734	<	for (ScheduledFuture task : tasks) {
735	<	assertTrue(task.isDone());
732	>	assertTrue(p.getQueue().isEmpty());
733	>	if (testImplementationDetails)
734	>	assertEquals(new HashSet<Object>(tasks), new HashSet<Object>(queuedTasks));
735	>	assertEquals(tasks.size(), queuedTasks.size());
736	>	for (ScheduledFuture<?> task : tasks) {
737	>	assertFalse(((CustomTask)task).ran);
738	>	assertFalse(task.isDone());
739		assertFalse(task.isCancelled());
740		}
741	+	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
742	+	assertTrue(p.isTerminated());
743		}
744
717	–
745		/**
746	<	* If setExecuteExistingDelayedTasksAfterShutdownPolicy is false,
747	<	* delayed tasks are cancelled at shutdown
748	<	*/
749	<	public void testShutDown2() throws InterruptedException {
750	<	CustomExecutor p = new CustomExecutor(1);
751	<	p.setExecuteExistingDelayedTasksAfterShutdownPolicy(false);
752	<	assertFalse(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
753	<	assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
754	<	ScheduledFuture[] tasks = new ScheduledFuture[5];
755	<	for (int i = 0; i < tasks.length; i++)
756	<	tasks[i] = p.schedule(new NoOpRunnable(),
757	<	SHORT_DELAY_MS, MILLISECONDS);
758	<	BlockingQueue q = p.getQueue();
759	<	assertEquals(tasks.length, q.size());
760	<	try { p.shutdown(); } catch (SecurityException ok) { return; }
761	<	assertTrue(p.isShutdown());
762	<	assertTrue(q.isEmpty());
763	<	assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS));
764	<	assertTrue(p.isTerminated());
765	<	for (ScheduledFuture task : tasks) {
766	<	assertTrue(task.isDone());
767	<	assertTrue(task.isCancelled());
746	>	* By default, periodic tasks are cancelled at shutdown.
747	>	* By default, delayed tasks keep running after shutdown.
748	>	* Check that changing the default values work:
749	>	* - setExecuteExistingDelayedTasksAfterShutdownPolicy
750	>	* - setContinueExistingPeriodicTasksAfterShutdownPolicy
751	>	*/
752	>	@SuppressWarnings("FutureReturnValueIgnored")
753	>	public void testShutdown_cancellation() throws Exception {
754	>	final int poolSize = 4;
755	>	final CustomExecutor p = new CustomExecutor(poolSize);
756	>	final BlockingQueue<Runnable> q = p.getQueue();
757	>	final ThreadLocalRandom rnd = ThreadLocalRandom.current();
758	>	final long delay = rnd.nextInt(2);
759	>	final int rounds = rnd.nextInt(1, 3);
760	>	final boolean effectiveDelayedPolicy;
761	>	final boolean effectivePeriodicPolicy;
762	>	final boolean effectiveRemovePolicy;
763	>
764	>	if (rnd.nextBoolean())
765	>	p.setExecuteExistingDelayedTasksAfterShutdownPolicy(
766	>	effectiveDelayedPolicy = rnd.nextBoolean());
767	>	else
768	>	effectiveDelayedPolicy = true;
769	>	assertEquals(effectiveDelayedPolicy,
770	>	p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
771	>
772	>	if (rnd.nextBoolean())
773	>	p.setContinueExistingPeriodicTasksAfterShutdownPolicy(
774	>	effectivePeriodicPolicy = rnd.nextBoolean());
775	>	else
776	>	effectivePeriodicPolicy = false;
777	>	assertEquals(effectivePeriodicPolicy,
778	>	p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
779	>
780	>	if (rnd.nextBoolean())
781	>	p.setRemoveOnCancelPolicy(
782	>	effectiveRemovePolicy = rnd.nextBoolean());
783	>	else
784	>	effectiveRemovePolicy = false;
785	>	assertEquals(effectiveRemovePolicy,
786	>	p.getRemoveOnCancelPolicy());
787	>
788	>	final boolean periodicTasksContinue = effectivePeriodicPolicy && rnd.nextBoolean();
789	>
790	>	// Strategy: Wedge the pool with one wave of "blocker" tasks,
791	>	// then add a second wave that waits in the queue until unblocked.
792	>	final AtomicInteger ran = new AtomicInteger(0);
793	>	final CountDownLatch poolBlocked = new CountDownLatch(poolSize);
794	>	final CountDownLatch unblock = new CountDownLatch(1);
795	>	final RuntimeException exception = new RuntimeException();
796	>
797	>	class Task implements Runnable {
798	>	public void run() {
799	>	try {
800	>	ran.getAndIncrement();
801	>	poolBlocked.countDown();
802	>	await(unblock);
803	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
804	>	}
805		}
742	–	}
806
807	+	class PeriodicTask extends Task {
808	+	PeriodicTask(int rounds) { this.rounds = rounds; }
809	+	int rounds;
810	+	public void run() {
811	+	if (--rounds == 0) super.run();
812	+	// throw exception to surely terminate this periodic task,
813	+	// but in a separate execution and in a detectable way.
814	+	if (rounds == -1) throw exception;
815	+	}
816	+	}
817	+
818	+	Runnable task = new Task();
819	+
820	+	List<Future<?>> immediates = new ArrayList<>();
821	+	List<Future<?>> delayeds   = new ArrayList<>();
822	+	List<Future<?>> periodics  = new ArrayList<>();
823	+
824	+	immediates.add(p.submit(task));
825	+	delayeds.add(p.schedule(task, delay, MILLISECONDS));
826	+	periodics.add(p.scheduleAtFixedRate(
827	+	new PeriodicTask(rounds), delay, 1, MILLISECONDS));
828	+	periodics.add(p.scheduleWithFixedDelay(
829	+	new PeriodicTask(rounds), delay, 1, MILLISECONDS));
830	+
831	+	await(poolBlocked);
832	+
833	+	assertEquals(poolSize, ran.get());
834	+	assertEquals(poolSize, p.getActiveCount());
835	+	assertTrue(q.isEmpty());
836	+
837	+	// Add second wave of tasks.
838	+	immediates.add(p.submit(task));
839	+	delayeds.add(p.schedule(task, effectiveDelayedPolicy ? delay : LONG_DELAY_MS, MILLISECONDS));
840	+	periodics.add(p.scheduleAtFixedRate(
841	+	new PeriodicTask(rounds), delay, 1, MILLISECONDS));
842	+	periodics.add(p.scheduleWithFixedDelay(
843	+	new PeriodicTask(rounds), delay, 1, MILLISECONDS));
844	+
845	+	assertEquals(poolSize, q.size());
846	+	assertEquals(poolSize, ran.get());
847	+
848	+	immediates.forEach(
849	+	f -> assertTrue(((ScheduledFuture)f).getDelay(NANOSECONDS) <= 0L));
850	+
851	+	Stream.of(immediates, delayeds, periodics).flatMap(Collection::stream)
852	+	.forEach(f -> assertFalse(f.isDone()));
853
745	–	/**
746	–	* If setContinueExistingPeriodicTasksAfterShutdownPolicy is set false,
747	–	* periodic tasks are cancelled at shutdown
748	–	*/
749	–	public void testShutDown3() throws InterruptedException {
750	–	CustomExecutor p = new CustomExecutor(1);
751	–	assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
752	–	assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
753	–	p.setContinueExistingPeriodicTasksAfterShutdownPolicy(false);
754	–	assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
755	–	assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
756	–	ScheduledFuture task =
757	–	p.scheduleAtFixedRate(new NoOpRunnable(), 5, 5, MILLISECONDS);
854		try { p.shutdown(); } catch (SecurityException ok) { return; }
855		assertTrue(p.isShutdown());
856	<	BlockingQueue q = p.getQueue();
857	<	assertTrue(p.getQueue().isEmpty());
762	<	assertTrue(task.isDone());
763	<	assertTrue(task.isCancelled());
764	<	assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS));
765	<	assertTrue(p.isTerminated());
766	<	}
856	>	assertTrue(p.isTerminating());
857	>	assertFalse(p.isTerminated());
858
859	<	/**
860	<	* if setContinueExistingPeriodicTasksAfterShutdownPolicy is true,
861	<	* periodic tasks are not cancelled at shutdown
862	<	*/
863	<	public void testShutDown4() throws InterruptedException {
864	<	CustomExecutor p = new CustomExecutor(1);
865	<	final CountDownLatch counter = new CountDownLatch(2);
866	<	try {
867	<	p.setContinueExistingPeriodicTasksAfterShutdownPolicy(true);
868	<	assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
869	<	assertTrue(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
870	<	final Runnable r = new CheckedRunnable() {
871	<	public void realRun() {
872	<	counter.countDown();
873	<	}};
874	<	ScheduledFuture task =
875	<	p.scheduleAtFixedRate(r, 1, 1, MILLISECONDS);
876	<	assertFalse(task.isDone());
877	<	assertFalse(task.isCancelled());
878	<	try { p.shutdown(); } catch (SecurityException ok) { return; }
879	<	assertFalse(task.isCancelled());
880	<	assertFalse(p.isTerminated());
881	<	assertTrue(p.isShutdown());
882	<	assertTrue(counter.await(SMALL_DELAY_MS, MILLISECONDS));
883	<	assertFalse(task.isCancelled());
884	<	assertTrue(task.cancel(false));
885	<	assertTrue(task.isDone());
886	<	assertTrue(task.isCancelled());
887	<	assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS));
888	<	assertTrue(p.isTerminated());
889	<	}
890	<	finally {
891	<	joinPool(p);
859	>	if (rnd.nextBoolean())
860	>	assertThrows(
861	>	RejectedExecutionException.class,
862	>	() -> p.submit(task),
863	>	() -> p.schedule(task, 1, SECONDS),
864	>	() -> p.scheduleAtFixedRate(
865	>	new PeriodicTask(1), 1, 1, SECONDS),
866	>	() -> p.scheduleWithFixedDelay(
867	>	new PeriodicTask(2), 1, 1, SECONDS));
868	>
869	>	assertTrue(q.contains(immediates.get(1)));
870	>	assertTrue(!effectiveDelayedPolicy
871	>	^ q.contains(delayeds.get(1)));
872	>	assertTrue(!effectivePeriodicPolicy
873	>	^ q.containsAll(periodics.subList(2, 4)));
874	>
875	>	immediates.forEach(f -> assertFalse(f.isDone()));
876	>
877	>	assertFalse(delayeds.get(0).isDone());
878	>	if (effectiveDelayedPolicy)
879	>	assertFalse(delayeds.get(1).isDone());
880	>	else
881	>	assertTrue(delayeds.get(1).isCancelled());
882	>
883	>	if (effectivePeriodicPolicy)
884	>	periodics.forEach(
885	>	f -> {
886	>	assertFalse(f.isDone());
887	>	if (!periodicTasksContinue) {
888	>	assertTrue(f.cancel(false));
889	>	assertTrue(f.isCancelled());
890	>	}
891	>	});
892	>	else {
893	>	periodics.subList(0, 2).forEach(f -> assertFalse(f.isDone()));
894	>	periodics.subList(2, 4).forEach(f -> assertTrue(f.isCancelled()));
895		}
896	+
897	+	unblock.countDown();    // Release all pool threads
898	+
899	+	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
900	+	assertFalse(p.isTerminating());
901	+	assertTrue(p.isTerminated());
902	+
903	+	assertTrue(q.isEmpty());
904	+
905	+	Stream.of(immediates, delayeds, periodics).flatMap(Collection::stream)
906	+	.forEach(f -> assertTrue(f.isDone()));
907	+
908	+	for (Future<?> f : immediates) assertNull(f.get());
909	+
910	+	assertNull(delayeds.get(0).get());
911	+	if (effectiveDelayedPolicy)
912	+	assertNull(delayeds.get(1).get());
913	+	else
914	+	assertTrue(delayeds.get(1).isCancelled());
915	+
916	+	if (periodicTasksContinue)
917	+	periodics.forEach(
918	+	f -> {
919	+	try { f.get(); }
920	+	catch (ExecutionException success) {
921	+	assertSame(exception, success.getCause());
922	+	}
923	+	catch (Throwable fail) { threadUnexpectedException(fail); }
924	+	});
925	+	else
926	+	periodics.forEach(f -> assertTrue(f.isCancelled()));
927	+
928	+	assertEquals(poolSize + 1
929	+	+ (effectiveDelayedPolicy ? 1 : 0)
930	+	+ (periodicTasksContinue ? 2 : 0),
931	+	ran.get());
932		}
933
934		/**
935		* completed submit of callable returns result
936		*/
937		public void testSubmitCallable() throws Exception {
938	<	ExecutorService e = new CustomExecutor(2);
939	<	try {
938	>	final ExecutorService e = new CustomExecutor(2);
939	>	try (PoolCleaner cleaner = cleaner(e)) {
940		Future<String> future = e.submit(new StringTask());
941		String result = future.get();
942		assertSame(TEST_STRING, result);
813	–	} finally {
814	–	joinPool(e);
943		}
944		}
945
#	Line 819 | Line 947 | public class ScheduledExecutorSubclassTe
947		* completed submit of runnable returns successfully
948		*/
949		public void testSubmitRunnable() throws Exception {
950	<	ExecutorService e = new CustomExecutor(2);
951	<	try {
950	>	final ExecutorService e = new CustomExecutor(2);
951	>	try (PoolCleaner cleaner = cleaner(e)) {
952		Future<?> future = e.submit(new NoOpRunnable());
953		future.get();
954		assertTrue(future.isDone());
827	–	} finally {
828	–	joinPool(e);
955		}
956		}
957
#	Line 833 | Line 959 | public class ScheduledExecutorSubclassTe
959		* completed submit of (runnable, result) returns result
960		*/
961		public void testSubmitRunnable2() throws Exception {
962	<	ExecutorService e = new CustomExecutor(2);
963	<	try {
962	>	final ExecutorService e = new CustomExecutor(2);
963	>	try (PoolCleaner cleaner = cleaner(e)) {
964		Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING);
965		String result = future.get();
966		assertSame(TEST_STRING, result);
841	–	} finally {
842	–	joinPool(e);
967		}
968		}
969
#	Line 847 | Line 971 | public class ScheduledExecutorSubclassTe
971		* invokeAny(null) throws NPE
972		*/
973		public void testInvokeAny1() throws Exception {
974	<	ExecutorService e = new CustomExecutor(2);
975	<	try {
976	<	e.invokeAny(null);
977	<	shouldThrow();
978	<	} catch (NullPointerException success) {
979	<	} finally {
856	<	joinPool(e);
974	>	final ExecutorService e = new CustomExecutor(2);
975	>	try (PoolCleaner cleaner = cleaner(e)) {
976	>	try {
977	>	e.invokeAny(null);
978	>	shouldThrow();
979	>	} catch (NullPointerException success) {}
980		}
981		}
982
983		/**
984	<	* invokeAny(empty collection) throws IAE
984	>	* invokeAny(empty collection) throws IllegalArgumentException
985		*/
986		public void testInvokeAny2() throws Exception {
987	<	ExecutorService e = new CustomExecutor(2);
988	<	try {
989	<	e.invokeAny(new ArrayList<Callable<String>>());
990	<	shouldThrow();
991	<	} catch (IllegalArgumentException success) {
992	<	} finally {
870	<	joinPool(e);
987	>	final ExecutorService e = new CustomExecutor(2);
988	>	try (PoolCleaner cleaner = cleaner(e)) {
989	>	try {
990	>	e.invokeAny(new ArrayList<Callable<String>>());
991	>	shouldThrow();
992	>	} catch (IllegalArgumentException success) {}
993		}
994		}
995
#	Line 875 | Line 997 | public class ScheduledExecutorSubclassTe
997		* invokeAny(c) throws NPE if c has null elements
998		*/
999		public void testInvokeAny3() throws Exception {
1000	<	CountDownLatch latch = new CountDownLatch(1);
1001	<	ExecutorService e = new CustomExecutor(2);
1002	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1003	<	l.add(latchAwaitingStringTask(latch));
1004	<	l.add(null);
1005	<	try {
1006	<	e.invokeAny(l);
1007	<	shouldThrow();
1008	<	} catch (NullPointerException success) {
1009	<	} finally {
1000	>	final CountDownLatch latch = new CountDownLatch(1);
1001	>	final ExecutorService e = new CustomExecutor(2);
1002	>	try (PoolCleaner cleaner = cleaner(e)) {
1003	>	List<Callable<String>> l = new ArrayList<>();
1004	>	l.add(latchAwaitingStringTask(latch));
1005	>	l.add(null);
1006	>	try {
1007	>	e.invokeAny(l);
1008	>	shouldThrow();
1009	>	} catch (NullPointerException success) {}
1010		latch.countDown();
889	–	joinPool(e);
1011		}
1012		}
1013
#	Line 894 | Line 1015 | public class ScheduledExecutorSubclassTe
1015		* invokeAny(c) throws ExecutionException if no task completes
1016		*/
1017		public void testInvokeAny4() throws Exception {
1018	<	ExecutorService e = new CustomExecutor(2);
1019	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1020	<	l.add(new NPETask());
1021	<	try {
1022	<	e.invokeAny(l);
1023	<	shouldThrow();
1024	<	} catch (ExecutionException success) {
1025	<	assertTrue(success.getCause() instanceof NullPointerException);
1026	<	} finally {
1027	<	joinPool(e);
1018	>	final ExecutorService e = new CustomExecutor(2);
1019	>	try (PoolCleaner cleaner = cleaner(e)) {
1020	>	List<Callable<String>> l = new ArrayList<>();
1021	>	l.add(new NPETask());
1022	>	try {
1023	>	e.invokeAny(l);
1024	>	shouldThrow();
1025	>	} catch (ExecutionException success) {
1026	>	assertTrue(success.getCause() instanceof NullPointerException);
1027	>	}
1028		}
1029		}
1030
#	Line 911 | Line 1032 | public class ScheduledExecutorSubclassTe
1032		* invokeAny(c) returns result of some task
1033		*/
1034		public void testInvokeAny5() throws Exception {
1035	<	ExecutorService e = new CustomExecutor(2);
1036	<	try {
1037	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1035	>	final ExecutorService e = new CustomExecutor(2);
1036	>	try (PoolCleaner cleaner = cleaner(e)) {
1037	>	List<Callable<String>> l = new ArrayList<>();
1038		l.add(new StringTask());
1039		l.add(new StringTask());
1040		String result = e.invokeAny(l);
1041		assertSame(TEST_STRING, result);
921	–	} finally {
922	–	joinPool(e);
1042		}
1043		}
1044
#	Line 927 | Line 1046 | public class ScheduledExecutorSubclassTe
1046		* invokeAll(null) throws NPE
1047		*/
1048		public void testInvokeAll1() throws Exception {
1049	<	ExecutorService e = new CustomExecutor(2);
1050	<	try {
1051	<	e.invokeAll(null);
1052	<	shouldThrow();
1053	<	} catch (NullPointerException success) {
1054	<	} finally {
936	<	joinPool(e);
1049	>	final ExecutorService e = new CustomExecutor(2);
1050	>	try (PoolCleaner cleaner = cleaner(e)) {
1051	>	try {
1052	>	e.invokeAll(null);
1053	>	shouldThrow();
1054	>	} catch (NullPointerException success) {}
1055		}
1056		}
1057
1058		/**
1059	<	* invokeAll(empty collection) returns empty collection
1059	>	* invokeAll(empty collection) returns empty list
1060		*/
1061		public void testInvokeAll2() throws Exception {
1062	<	ExecutorService e = new CustomExecutor(2);
1063	<	try {
1064	<	List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>());
1062	>	final ExecutorService e = new CustomExecutor(2);
1063	>	final Collection<Callable<String>> emptyCollection
1064	>	= Collections.emptyList();
1065	>	try (PoolCleaner cleaner = cleaner(e)) {
1066	>	List<Future<String>> r = e.invokeAll(emptyCollection);
1067		assertTrue(r.isEmpty());
948	–	} finally {
949	–	joinPool(e);
1068		}
1069		}
1070
#	Line 954 | Line 1072 | public class ScheduledExecutorSubclassTe
1072		* invokeAll(c) throws NPE if c has null elements
1073		*/
1074		public void testInvokeAll3() throws Exception {
1075	<	ExecutorService e = new CustomExecutor(2);
1076	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1077	<	l.add(new StringTask());
1078	<	l.add(null);
1079	<	try {
1080	<	e.invokeAll(l);
1081	<	shouldThrow();
1082	<	} catch (NullPointerException success) {
1083	<	} finally {
966	<	joinPool(e);
1075	>	final ExecutorService e = new CustomExecutor(2);
1076	>	try (PoolCleaner cleaner = cleaner(e)) {
1077	>	List<Callable<String>> l = new ArrayList<>();
1078	>	l.add(new StringTask());
1079	>	l.add(null);
1080	>	try {
1081	>	e.invokeAll(l);
1082	>	shouldThrow();
1083	>	} catch (NullPointerException success) {}
1084		}
1085		}
1086
#	Line 971 | Line 1088 | public class ScheduledExecutorSubclassTe
1088		* get of invokeAll(c) throws exception on failed task
1089		*/
1090		public void testInvokeAll4() throws Exception {
1091	<	ExecutorService e = new CustomExecutor(2);
1092	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1093	<	l.add(new NPETask());
1094	<	List<Future<String>> futures = e.invokeAll(l);
1095	<	assertEquals(1, futures.size());
1096	<	try {
1097	<	futures.get(0).get();
1098	<	shouldThrow();
1099	<	} catch (ExecutionException success) {
1100	<	assertTrue(success.getCause() instanceof NullPointerException);
1101	<	} finally {
1102	<	joinPool(e);
1091	>	final ExecutorService e = new CustomExecutor(2);
1092	>	try (PoolCleaner cleaner = cleaner(e)) {
1093	>	List<Callable<String>> l = new ArrayList<>();
1094	>	l.add(new NPETask());
1095	>	List<Future<String>> futures = e.invokeAll(l);
1096	>	assertEquals(1, futures.size());
1097	>	try {
1098	>	futures.get(0).get();
1099	>	shouldThrow();
1100	>	} catch (ExecutionException success) {
1101	>	assertTrue(success.getCause() instanceof NullPointerException);
1102	>	}
1103		}
1104		}
1105
#	Line 990 | Line 1107 | public class ScheduledExecutorSubclassTe
1107		* invokeAll(c) returns results of all completed tasks
1108		*/
1109		public void testInvokeAll5() throws Exception {
1110	<	ExecutorService e = new CustomExecutor(2);
1111	<	try {
1112	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1110	>	final ExecutorService e = new CustomExecutor(2);
1111	>	try (PoolCleaner cleaner = cleaner(e)) {
1112	>	List<Callable<String>> l = new ArrayList<>();
1113		l.add(new StringTask());
1114		l.add(new StringTask());
1115		List<Future<String>> futures = e.invokeAll(l);
1116		assertEquals(2, futures.size());
1117		for (Future<String> future : futures)
1118		assertSame(TEST_STRING, future.get());
1002	–	} finally {
1003	–	joinPool(e);
1119		}
1120		}
1121
#	Line 1008 | Line 1123 | public class ScheduledExecutorSubclassTe
1123		* timed invokeAny(null) throws NPE
1124		*/
1125		public void testTimedInvokeAny1() throws Exception {
1126	<	ExecutorService e = new CustomExecutor(2);
1127	<	try {
1128	<	e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS);
1129	<	shouldThrow();
1130	<	} catch (NullPointerException success) {
1131	<	} finally {
1017	<	joinPool(e);
1126	>	final ExecutorService e = new CustomExecutor(2);
1127	>	try (PoolCleaner cleaner = cleaner(e)) {
1128	>	try {
1129	>	e.invokeAny(null, randomTimeout(), randomTimeUnit());
1130	>	shouldThrow();
1131	>	} catch (NullPointerException success) {}
1132		}
1133		}
1134
#	Line 1022 | Line 1136 | public class ScheduledExecutorSubclassTe
1136		* timed invokeAny(,,null) throws NPE
1137		*/
1138		public void testTimedInvokeAnyNullTimeUnit() throws Exception {
1139	<	ExecutorService e = new CustomExecutor(2);
1140	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1141	<	l.add(new StringTask());
1142	<	try {
1143	<	e.invokeAny(l, MEDIUM_DELAY_MS, null);
1144	<	shouldThrow();
1145	<	} catch (NullPointerException success) {
1146	<	} finally {
1033	<	joinPool(e);
1139	>	final ExecutorService e = new CustomExecutor(2);
1140	>	try (PoolCleaner cleaner = cleaner(e)) {
1141	>	List<Callable<String>> l = new ArrayList<>();
1142	>	l.add(new StringTask());
1143	>	try {
1144	>	e.invokeAny(l, randomTimeout(), null);
1145	>	shouldThrow();
1146	>	} catch (NullPointerException success) {}
1147		}
1148		}
1149
1150		/**
1151	<	* timed invokeAny(empty collection) throws IAE
1151	>	* timed invokeAny(empty collection) throws IllegalArgumentException
1152		*/
1153		public void testTimedInvokeAny2() throws Exception {
1154	<	ExecutorService e = new CustomExecutor(2);
1155	<	try {
1156	<	e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
1157	<	shouldThrow();
1158	<	} catch (IllegalArgumentException success) {
1159	<	} finally {
1160	<	joinPool(e);
1154	>	final ExecutorService e = new CustomExecutor(2);
1155	>	final Collection<Callable<String>> emptyCollection
1156	>	= Collections.emptyList();
1157	>	try (PoolCleaner cleaner = cleaner(e)) {
1158	>	try {
1159	>	e.invokeAny(emptyCollection, randomTimeout(), randomTimeUnit());
1160	>	shouldThrow();
1161	>	} catch (IllegalArgumentException success) {}
1162		}
1163		}
1164
#	Line 1053 | Line 1167 | public class ScheduledExecutorSubclassTe
1167		*/
1168		public void testTimedInvokeAny3() throws Exception {
1169		CountDownLatch latch = new CountDownLatch(1);
1170	<	ExecutorService e = new CustomExecutor(2);
1171	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1172	<	l.add(latchAwaitingStringTask(latch));
1173	<	l.add(null);
1174	<	try {
1175	<	e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1176	<	shouldThrow();
1177	<	} catch (NullPointerException success) {
1178	<	} finally {
1170	>	final ExecutorService e = new CustomExecutor(2);
1171	>	try (PoolCleaner cleaner = cleaner(e)) {
1172	>	List<Callable<String>> l = new ArrayList<>();
1173	>	l.add(latchAwaitingStringTask(latch));
1174	>	l.add(null);
1175	>	try {
1176	>	e.invokeAny(l, randomTimeout(), randomTimeUnit());
1177	>	shouldThrow();
1178	>	} catch (NullPointerException success) {}
1179		latch.countDown();
1066	–	joinPool(e);
1180		}
1181		}
1182
#	Line 1071 | Line 1184 | public class ScheduledExecutorSubclassTe
1184		* timed invokeAny(c) throws ExecutionException if no task completes
1185		*/
1186		public void testTimedInvokeAny4() throws Exception {
1187	<	ExecutorService e = new CustomExecutor(2);
1188	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1189	<	l.add(new NPETask());
1190	<	try {
1191	<	e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1192	<	shouldThrow();
1193	<	} catch (ExecutionException success) {
1194	<	assertTrue(success.getCause() instanceof NullPointerException);
1195	<	} finally {
1196	<	joinPool(e);
1187	>	final ExecutorService e = new CustomExecutor(2);
1188	>	try (PoolCleaner cleaner = cleaner(e)) {
1189	>	long startTime = System.nanoTime();
1190	>	List<Callable<String>> l = new ArrayList<>();
1191	>	l.add(new NPETask());
1192	>	try {
1193	>	e.invokeAny(l, LONG_DELAY_MS, MILLISECONDS);
1194	>	shouldThrow();
1195	>	} catch (ExecutionException success) {
1196	>	assertTrue(success.getCause() instanceof NullPointerException);
1197	>	}
1198	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1199		}
1200		}
1201
#	Line 1088 | Line 1203 | public class ScheduledExecutorSubclassTe
1203		* timed invokeAny(c) returns result of some task
1204		*/
1205		public void testTimedInvokeAny5() throws Exception {
1206	<	ExecutorService e = new CustomExecutor(2);
1207	<	try {
1208	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1206	>	final ExecutorService e = new CustomExecutor(2);
1207	>	try (PoolCleaner cleaner = cleaner(e)) {
1208	>	long startTime = System.nanoTime();
1209	>	List<Callable<String>> l = new ArrayList<>();
1210		l.add(new StringTask());
1211		l.add(new StringTask());
1212	<	String result = e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1212	>	String result = e.invokeAny(l, LONG_DELAY_MS, MILLISECONDS);
1213		assertSame(TEST_STRING, result);
1214	<	} finally {
1099	<	joinPool(e);
1214	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1215		}
1216		}
1217
1218		/**
1219	<	* timed invokeAll(null) throws NPE
1219	>	* timed invokeAll(null) throws NullPointerException
1220		*/
1221		public void testTimedInvokeAll1() throws Exception {
1222	<	ExecutorService e = new CustomExecutor(2);
1223	<	try {
1224	<	e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS);
1225	<	shouldThrow();
1226	<	} catch (NullPointerException success) {
1227	<	} finally {
1113	<	joinPool(e);
1222	>	final ExecutorService e = new CustomExecutor(2);
1223	>	try (PoolCleaner cleaner = cleaner(e)) {
1224	>	try {
1225	>	e.invokeAll(null, randomTimeout(), randomTimeUnit());
1226	>	shouldThrow();
1227	>	} catch (NullPointerException success) {}
1228		}
1229		}
1230
1231		/**
1232	<	* timed invokeAll(,,null) throws NPE
1232	>	* timed invokeAll(,,null) throws NullPointerException
1233		*/
1234		public void testTimedInvokeAllNullTimeUnit() throws Exception {
1235	<	ExecutorService e = new CustomExecutor(2);
1236	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1237	<	l.add(new StringTask());
1238	<	try {
1239	<	e.invokeAll(l, MEDIUM_DELAY_MS, null);
1240	<	shouldThrow();
1241	<	} catch (NullPointerException success) {
1242	<	} finally {
1129	<	joinPool(e);
1235	>	final ExecutorService e = new CustomExecutor(2);
1236	>	try (PoolCleaner cleaner = cleaner(e)) {
1237	>	List<Callable<String>> l = new ArrayList<>();
1238	>	l.add(new StringTask());
1239	>	try {
1240	>	e.invokeAll(l, randomTimeout(), null);
1241	>	shouldThrow();
1242	>	} catch (NullPointerException success) {}
1243		}
1244		}
1245
1246		/**
1247	<	* timed invokeAll(empty collection) returns empty collection
1247	>	* timed invokeAll(empty collection) returns empty list
1248		*/
1249		public void testTimedInvokeAll2() throws Exception {
1250	<	ExecutorService e = new CustomExecutor(2);
1251	<	try {
1252	<	List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
1250	>	final ExecutorService e = new CustomExecutor(2);
1251	>	final Collection<Callable<String>> emptyCollection
1252	>	= Collections.emptyList();
1253	>	try (PoolCleaner cleaner = cleaner(e)) {
1254	>	List<Future<String>> r =
1255	>	e.invokeAll(emptyCollection, randomTimeout(), randomTimeUnit());
1256		assertTrue(r.isEmpty());
1141	–	} finally {
1142	–	joinPool(e);
1257		}
1258		}
1259
#	Line 1147 | Line 1261 | public class ScheduledExecutorSubclassTe
1261		* timed invokeAll(c) throws NPE if c has null elements
1262		*/
1263		public void testTimedInvokeAll3() throws Exception {
1264	<	ExecutorService e = new CustomExecutor(2);
1265	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1266	<	l.add(new StringTask());
1267	<	l.add(null);
1268	<	try {
1269	<	e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1270	<	shouldThrow();
1271	<	} catch (NullPointerException success) {
1272	<	} finally {
1159	<	joinPool(e);
1264	>	final ExecutorService e = new CustomExecutor(2);
1265	>	try (PoolCleaner cleaner = cleaner(e)) {
1266	>	List<Callable<String>> l = new ArrayList<>();
1267	>	l.add(new StringTask());
1268	>	l.add(null);
1269	>	try {
1270	>	e.invokeAll(l, randomTimeout(), randomTimeUnit());
1271	>	shouldThrow();
1272	>	} catch (NullPointerException success) {}
1273		}
1274		}
1275
#	Line 1164 | Line 1277 | public class ScheduledExecutorSubclassTe
1277		* get of element of invokeAll(c) throws exception on failed task
1278		*/
1279		public void testTimedInvokeAll4() throws Exception {
1280	<	ExecutorService e = new CustomExecutor(2);
1281	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1282	<	l.add(new NPETask());
1283	<	List<Future<String>> futures =
1284	<	e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1285	<	assertEquals(1, futures.size());
1286	<	try {
1287	<	futures.get(0).get();
1288	<	shouldThrow();
1289	<	} catch (ExecutionException success) {
1290	<	assertTrue(success.getCause() instanceof NullPointerException);
1291	<	} finally {
1292	<	joinPool(e);
1280	>	final ExecutorService e = new CustomExecutor(2);
1281	>	final Collection<Callable<String>> c = new ArrayList<>();
1282	>	c.add(new NPETask());
1283	>	try (PoolCleaner cleaner = cleaner(e)) {
1284	>	List<Future<String>> futures =
1285	>	e.invokeAll(c, LONG_DELAY_MS, MILLISECONDS);
1286	>	assertEquals(1, futures.size());
1287	>	try {
1288	>	futures.get(0).get();
1289	>	shouldThrow();
1290	>	} catch (ExecutionException success) {
1291	>	assertTrue(success.getCause() instanceof NullPointerException);
1292	>	}
1293		}
1294		}
1295
#	Line 1184 | Line 1297 | public class ScheduledExecutorSubclassTe
1297		* timed invokeAll(c) returns results of all completed tasks
1298		*/
1299		public void testTimedInvokeAll5() throws Exception {
1300	<	ExecutorService e = new CustomExecutor(2);
1301	<	try {
1302	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1300	>	final ExecutorService e = new CustomExecutor(2);
1301	>	try (PoolCleaner cleaner = cleaner(e)) {
1302	>	List<Callable<String>> l = new ArrayList<>();
1303		l.add(new StringTask());
1304		l.add(new StringTask());
1305		List<Future<String>> futures =
1306	<	e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1306	>	e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS);
1307		assertEquals(2, futures.size());
1308		for (Future<String> future : futures)
1309		assertSame(TEST_STRING, future.get());
1197	–	} finally {
1198	–	joinPool(e);
1310		}
1311		}
1312
#	Line 1203 | Line 1314 | public class ScheduledExecutorSubclassTe
1314		* timed invokeAll(c) cancels tasks not completed by timeout
1315		*/
1316		public void testTimedInvokeAll6() throws Exception {
1317	<	ExecutorService e = new CustomExecutor(2);
1318	<	try {
1319	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1320	<	l.add(new StringTask());
1321	<	l.add(Executors.callable(new MediumPossiblyInterruptedRunnable(), TEST_STRING));
1322	<	l.add(new StringTask());
1323	<	List<Future<String>> futures =
1324	<	e.invokeAll(l, SHORT_DELAY_MS, MILLISECONDS);
1325	<	assertEquals(3, futures.size());
1326	<	Iterator<Future<String>> it = futures.iterator();
1327	<	Future<String> f1 = it.next();
1328	<	Future<String> f2 = it.next();
1329	<	Future<String> f3 = it.next();
1330	<	assertTrue(f1.isDone());
1331	<	assertTrue(f2.isDone());
1332	<	assertTrue(f3.isDone());
1333	<	assertFalse(f1.isCancelled());
1334	<	assertTrue(f2.isCancelled());
1335	<	} finally {
1336	<	joinPool(e);
1317	>	for (long timeout = timeoutMillis();;) {
1318	>	final CountDownLatch done = new CountDownLatch(1);
1319	>	final Callable<String> waiter = new CheckedCallable<>() {
1320	>	public String realCall() {
1321	>	try { done.await(LONG_DELAY_MS, MILLISECONDS); }
1322	>	catch (InterruptedException ok) {}
1323	>	return "1"; }};
1324	>	final ExecutorService p = new CustomExecutor(2);
1325	>	try (PoolCleaner cleaner = cleaner(p, done)) {
1326	>	List<Callable<String>> tasks = new ArrayList<>();
1327	>	tasks.add(new StringTask("0"));
1328	>	tasks.add(waiter);
1329	>	tasks.add(new StringTask("2"));
1330	>	long startTime = System.nanoTime();
1331	>	List<Future<String>> futures =
1332	>	p.invokeAll(tasks, timeout, MILLISECONDS);
1333	>	assertEquals(tasks.size(), futures.size());
1334	>	assertTrue(millisElapsedSince(startTime) >= timeout);
1335	>	for (Future<?> future : futures)
1336	>	assertTrue(future.isDone());
1337	>	assertTrue(futures.get(1).isCancelled());
1338	>	try {
1339	>	assertEquals("0", futures.get(0).get());
1340	>	assertEquals("2", futures.get(2).get());
1341	>	break;
1342	>	} catch (CancellationException retryWithLongerTimeout) {
1343	>	timeout *= 2;
1344	>	if (timeout >= LONG_DELAY_MS / 2)
1345	>	fail("expected exactly one task to be cancelled");
1346	>	}
1347	>	}
1348		}
1349		}
1350

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