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

Comparing jsr166/src/test/tck/ScheduledExecutorTest.java (file contents):
Revision 1.44 by jsr166, Sat May 28 15:33:20 2011 UTC vs.
Revision 1.97 by jsr166, Sat Nov 24 21:41:21 2018 UTC

#	Line 6 | Line 6
6		* Pat Fisher, Mike Judd.
7		*/
8
9	–	import junit.framework.*;
10	–	import java.util.*;
11	–	import java.util.concurrent.*;
9		import static java.util.concurrent.TimeUnit.MILLISECONDS;
10	<	import java.util.concurrent.atomic.*;
10	>	import static java.util.concurrent.TimeUnit.NANOSECONDS;
11	>	import static java.util.concurrent.TimeUnit.SECONDS;
12	>
13	>	import java.util.ArrayList;
14	>	import java.util.Collection;
15	>	import java.util.Collections;
16	>	import java.util.HashSet;
17	>	import java.util.List;
18	>	import java.util.concurrent.BlockingQueue;
19	>	import java.util.concurrent.Callable;
20	>	import java.util.concurrent.CancellationException;
21	>	import java.util.concurrent.CountDownLatch;
22	>	import java.util.concurrent.ExecutionException;
23	>	import java.util.concurrent.ExecutorService;
24	>	import java.util.concurrent.Future;
25	>	import java.util.concurrent.RejectedExecutionException;
26	>	import java.util.concurrent.ScheduledFuture;
27	>	import java.util.concurrent.ScheduledThreadPoolExecutor;
28	>	import java.util.concurrent.ThreadFactory;
29	>	import java.util.concurrent.ThreadLocalRandom;
30	>	import java.util.concurrent.ThreadPoolExecutor;
31	>	import java.util.concurrent.atomic.AtomicBoolean;
32	>	import java.util.concurrent.atomic.AtomicInteger;
33	>	import java.util.concurrent.atomic.AtomicLong;
34	>	import java.util.stream.Stream;
35	>
36	>	import junit.framework.Test;
37	>	import junit.framework.TestSuite;
38
39		public class ScheduledExecutorTest extends JSR166TestCase {
40		public static void main(String[] args) {
41	<	junit.textui.TestRunner.run(suite());
41	>	main(suite(), args);
42		}
43		public static Test suite() {
44		return new TestSuite(ScheduledExecutorTest.class);
#	Line 24 | Line 48 | public class ScheduledExecutorTest exten
48		* execute successfully executes a runnable
49		*/
50		public void testExecute() throws InterruptedException {
51	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
52	<	final CountDownLatch done = new CountDownLatch(1);
53	<	final Runnable task = new CheckedRunnable() {
54	<	public void realRun() {
55	<	done.countDown();
32	<	}};
33	<	try {
51	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
52	>	try (PoolCleaner cleaner = cleaner(p)) {
53	>	final CountDownLatch done = new CountDownLatch(1);
54	>	final Runnable task = new CheckedRunnable() {
55	>	public void realRun() { done.countDown(); }};
56		p.execute(task);
57	<	assertTrue(done.await(SMALL_DELAY_MS, MILLISECONDS));
36	<	} finally {
37	<	joinPool(p);
57	>	await(done);
58		}
59		}
60
#	Line 42 | Line 62 | public class ScheduledExecutorTest exten
62		* delayed schedule of callable successfully executes after delay
63		*/
64		public void testSchedule1() throws Exception {
65	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
66	<	final long startTime = System.nanoTime();
67	<	final CountDownLatch done = new CountDownLatch(1);
68	<	try {
65	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
66	>	try (PoolCleaner cleaner = cleaner(p)) {
67	>	final long startTime = System.nanoTime();
68	>	final CountDownLatch done = new CountDownLatch(1);
69		Callable task = new CheckedCallable<Boolean>() {
70		public Boolean realCall() {
71		done.countDown();
#	Line 55 | Line 75 | public class ScheduledExecutorTest exten
75		Future f = p.schedule(task, timeoutMillis(), MILLISECONDS);
76		assertSame(Boolean.TRUE, f.get());
77		assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
78	<	assertTrue(done.await(0L, MILLISECONDS));
59	<	} finally {
60	<	joinPool(p);
78	>	assertEquals(0L, done.getCount());
79		}
80		}
81
#	Line 65 | Line 83 | public class ScheduledExecutorTest exten
83		* delayed schedule of runnable successfully executes after delay
84		*/
85		public void testSchedule3() throws Exception {
86	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
87	<	final long startTime = System.nanoTime();
88	<	final CountDownLatch done = new CountDownLatch(1);
89	<	try {
86	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
87	>	try (PoolCleaner cleaner = cleaner(p)) {
88	>	final long startTime = System.nanoTime();
89	>	final CountDownLatch done = new CountDownLatch(1);
90		Runnable task = new CheckedRunnable() {
91		public void realRun() {
92		done.countDown();
#	Line 78 | Line 96 | public class ScheduledExecutorTest exten
96		await(done);
97		assertNull(f.get(LONG_DELAY_MS, MILLISECONDS));
98		assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
81	–	} finally {
82	–	joinPool(p);
99		}
100		}
101
#	Line 87 | Line 103 | public class ScheduledExecutorTest exten
103		* scheduleAtFixedRate executes runnable after given initial delay
104		*/
105		public void testSchedule4() throws Exception {
106	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
107	<	final long startTime = System.nanoTime();
108	<	final CountDownLatch done = new CountDownLatch(1);
109	<	try {
106	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
107	>	try (PoolCleaner cleaner = cleaner(p)) {
108	>	final long startTime = System.nanoTime();
109	>	final CountDownLatch done = new CountDownLatch(1);
110		Runnable task = new CheckedRunnable() {
111		public void realRun() {
112		done.countDown();
#	Line 102 | Line 118 | public class ScheduledExecutorTest exten
118		await(done);
119		assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
120		f.cancel(true);
105	–	} finally {
106	–	joinPool(p);
121		}
122		}
123
#	Line 111 | Line 125 | public class ScheduledExecutorTest exten
125		* scheduleWithFixedDelay executes runnable after given initial delay
126		*/
127		public void testSchedule5() throws Exception {
128	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
129	<	final long startTime = System.nanoTime();
130	<	final CountDownLatch done = new CountDownLatch(1);
131	<	try {
128	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
129	>	try (PoolCleaner cleaner = cleaner(p)) {
130	>	final long startTime = System.nanoTime();
131	>	final CountDownLatch done = new CountDownLatch(1);
132		Runnable task = new CheckedRunnable() {
133		public void realRun() {
134		done.countDown();
#	Line 126 | Line 140 | public class ScheduledExecutorTest exten
140		await(done);
141		assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
142		f.cancel(true);
129	–	} finally {
130	–	joinPool(p);
143		}
144		}
145
#	Line 137 | Line 149 | public class ScheduledExecutorTest exten
149		}
150
151		/**
152	<	* scheduleAtFixedRate executes series of tasks at given rate
152	>	* scheduleAtFixedRate executes series of tasks at given rate.
153	>	* Eventually, it must hold that:
154	>	*   cycles - 1 <= elapsedMillis/delay < cycles
155		*/
156		public void testFixedRateSequence() throws InterruptedException {
157	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
158	<	RunnableCounter counter = new RunnableCounter();
159	<	ScheduledFuture h =
160	<	p.scheduleAtFixedRate(counter, 0, 1, MILLISECONDS);
161	<	delay(SMALL_DELAY_MS);
162	<	h.cancel(true);
163	<	int c = counter.count.get();
164	<	// By time scaling conventions, we must have at least
165	<	// an execution per SHORT delay, but no more than one SHORT more
166	<	assertTrue(c >= SMALL_DELAY_MS / SHORT_DELAY_MS);
167	<	assertTrue(c <= SMALL_DELAY_MS + SHORT_DELAY_MS);
168	<	joinPool(p);
157	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
158	>	try (PoolCleaner cleaner = cleaner(p)) {
159	>	for (int delay = 1; delay <= LONG_DELAY_MS; delay *= 3) {
160	>	final long startTime = System.nanoTime();
161	>	final int cycles = 8;
162	>	final CountDownLatch done = new CountDownLatch(cycles);
163	>	final Runnable task = new CheckedRunnable() {
164	>	public void realRun() { done.countDown(); }};
165	>	final ScheduledFuture periodicTask =
166	>	p.scheduleAtFixedRate(task, 0, delay, MILLISECONDS);
167	>	final int totalDelayMillis = (cycles - 1) * delay;
168	>	await(done, totalDelayMillis + LONG_DELAY_MS);
169	>	periodicTask.cancel(true);
170	>	final long elapsedMillis = millisElapsedSince(startTime);
171	>	assertTrue(elapsedMillis >= totalDelayMillis);
172	>	if (elapsedMillis <= cycles * delay)
173	>	return;
174	>	// else retry with longer delay
175	>	}
176	>	fail("unexpected execution rate");
177	>	}
178		}
179
180		/**
181	<	* scheduleWithFixedDelay executes series of tasks with given period
181	>	* scheduleWithFixedDelay executes series of tasks with given period.
182	>	* Eventually, it must hold that each task starts at least delay and at
183	>	* most 2 * delay after the termination of the previous task.
184		*/
185		public void testFixedDelaySequence() throws InterruptedException {
186	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
187	<	RunnableCounter counter = new RunnableCounter();
188	<	ScheduledFuture h =
189	<	p.scheduleWithFixedDelay(counter, 0, 1, MILLISECONDS);
190	<	delay(SMALL_DELAY_MS);
191	<	h.cancel(true);
192	<	int c = counter.count.get();
193	<	assertTrue(c >= SMALL_DELAY_MS / SHORT_DELAY_MS);
194	<	assertTrue(c <= SMALL_DELAY_MS + SHORT_DELAY_MS);
195	<	joinPool(p);
186	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
187	>	try (PoolCleaner cleaner = cleaner(p)) {
188	>	for (int delay = 1; delay <= LONG_DELAY_MS; delay *= 3) {
189	>	final long startTime = System.nanoTime();
190	>	final AtomicLong previous = new AtomicLong(startTime);
191	>	final AtomicBoolean tryLongerDelay = new AtomicBoolean(false);
192	>	final int cycles = 8;
193	>	final CountDownLatch done = new CountDownLatch(cycles);
194	>	final int d = delay;
195	>	final Runnable task = new CheckedRunnable() {
196	>	public void realRun() {
197	>	long now = System.nanoTime();
198	>	long elapsedMillis
199	>	= NANOSECONDS.toMillis(now - previous.get());
200	>	if (done.getCount() == cycles) { // first execution
201	>	if (elapsedMillis >= d)
202	>	tryLongerDelay.set(true);
203	>	} else {
204	>	assertTrue(elapsedMillis >= d);
205	>	if (elapsedMillis >= 2 * d)
206	>	tryLongerDelay.set(true);
207	>	}
208	>	previous.set(now);
209	>	done.countDown();
210	>	}};
211	>	final ScheduledFuture periodicTask =
212	>	p.scheduleWithFixedDelay(task, 0, delay, MILLISECONDS);
213	>	final int totalDelayMillis = (cycles - 1) * delay;
214	>	await(done, totalDelayMillis + cycles * LONG_DELAY_MS);
215	>	periodicTask.cancel(true);
216	>	final long elapsedMillis = millisElapsedSince(startTime);
217	>	assertTrue(elapsedMillis >= totalDelayMillis);
218	>	if (!tryLongerDelay.get())
219	>	return;
220	>	// else retry with longer delay
221	>	}
222	>	fail("unexpected execution rate");
223	>	}
224		}
225
226		/**
227	<	* execute(null) throws NPE
227	>	* Submitting null tasks throws NullPointerException
228		*/
229	<	public void testExecuteNull() throws InterruptedException {
230	<	ScheduledThreadPoolExecutor se = null;
231	<	try {
232	<	se = new ScheduledThreadPoolExecutor(1);
233	<	se.execute(null);
181	<	shouldThrow();
182	<	} catch (NullPointerException success) {}
183	<
184	<	joinPool(se);
229	>	public void testNullTaskSubmission() {
230	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
231	>	try (PoolCleaner cleaner = cleaner(p)) {
232	>	assertNullTaskSubmissionThrowsNullPointerException(p);
233	>	}
234		}
235
236		/**
237	<	* schedule(null) throws NPE
237	>	* Submitted tasks are rejected when shutdown
238		*/
239	<	public void testScheduleNull() throws InterruptedException {
240	<	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
241	<	try {
242	<	TrackedCallable callable = null;
243	<	Future f = se.schedule(callable, SHORT_DELAY_MS, MILLISECONDS);
244	<	shouldThrow();
245	<	} catch (NullPointerException success) {}
246	<	joinPool(se);
247	<	}
239	>	public void testSubmittedTasksRejectedWhenShutdown() throws InterruptedException {
240	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
241	>	final ThreadLocalRandom rnd = ThreadLocalRandom.current();
242	>	final CountDownLatch threadsStarted = new CountDownLatch(p.getCorePoolSize());
243	>	final CountDownLatch done = new CountDownLatch(1);
244	>	final Runnable r = () -> {
245	>	threadsStarted.countDown();
246	>	for (;;) {
247	>	try {
248	>	done.await();
249	>	return;
250	>	} catch (InterruptedException shutdownNowDeliberatelyIgnored) {}
251	>	}};
252	>	final Callable<Boolean> c = () -> {
253	>	threadsStarted.countDown();
254	>	for (;;) {
255	>	try {
256	>	done.await();
257	>	return Boolean.TRUE;
258	>	} catch (InterruptedException shutdownNowDeliberatelyIgnored) {}
259	>	}};
260
261	<	/**
262	<	* execute throws RejectedExecutionException if shutdown
263	<	*/
264	<	public void testSchedule1_RejectedExecutionException() throws InterruptedException {
265	<	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
266	<	try {
267	<	se.shutdown();
268	<	se.schedule(new NoOpRunnable(),
269	<	MEDIUM_DELAY_MS, MILLISECONDS);
209	<	shouldThrow();
210	<	} catch (RejectedExecutionException success) {
211	<	} catch (SecurityException ok) {
212	<	}
261	>	try (PoolCleaner cleaner = cleaner(p, done)) {
262	>	for (int i = p.getCorePoolSize(); i--> 0; ) {
263	>	switch (rnd.nextInt(4)) {
264	>	case 0: p.execute(r); break;
265	>	case 1: assertFalse(p.submit(r).isDone()); break;
266	>	case 2: assertFalse(p.submit(r, Boolean.TRUE).isDone()); break;
267	>	case 3: assertFalse(p.submit(c).isDone()); break;
268	>	}
269	>	}
270
271	<	joinPool(se);
272	<	}
271	>	// ScheduledThreadPoolExecutor has an unbounded queue, so never saturated.
272	>	await(threadsStarted);
273
274	<	/**
275	<	* schedule throws RejectedExecutionException if shutdown
276	<	*/
277	<	public void testSchedule2_RejectedExecutionException() throws InterruptedException {
278	<	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
279	<	try {
280	<	se.shutdown();
224	<	se.schedule(new NoOpCallable(),
225	<	MEDIUM_DELAY_MS, MILLISECONDS);
226	<	shouldThrow();
227	<	} catch (RejectedExecutionException success) {
228	<	} catch (SecurityException ok) {
229	<	}
230	<	joinPool(se);
231	<	}
274	>	if (rnd.nextBoolean())
275	>	p.shutdownNow();
276	>	else
277	>	p.shutdown();
278	>	// Pool is shutdown, but not yet terminated
279	>	assertTaskSubmissionsAreRejected(p);
280	>	assertFalse(p.isTerminated());
281
282	<	/**
283	<	* schedule callable throws RejectedExecutionException if shutdown
235	<	*/
236	<	public void testSchedule3_RejectedExecutionException() throws InterruptedException {
237	<	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
238	<	try {
239	<	se.shutdown();
240	<	se.schedule(new NoOpCallable(),
241	<	MEDIUM_DELAY_MS, MILLISECONDS);
242	<	shouldThrow();
243	<	} catch (RejectedExecutionException success) {
244	<	} catch (SecurityException ok) {
245	<	}
246	<	joinPool(se);
247	<	}
282	>	done.countDown();   // release blocking tasks
283	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
284
285	<	/**
250	<	* scheduleAtFixedRate throws RejectedExecutionException if shutdown
251	<	*/
252	<	public void testScheduleAtFixedRate1_RejectedExecutionException() throws InterruptedException {
253	<	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
254	<	try {
255	<	se.shutdown();
256	<	se.scheduleAtFixedRate(new NoOpRunnable(),
257	<	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS);
258	<	shouldThrow();
259	<	} catch (RejectedExecutionException success) {
260	<	} catch (SecurityException ok) {
285	>	assertTaskSubmissionsAreRejected(p);
286		}
287	<	joinPool(se);
263	<	}
264	<
265	<	/**
266	<	* scheduleWithFixedDelay throws RejectedExecutionException if shutdown
267	<	*/
268	<	public void testScheduleWithFixedDelay1_RejectedExecutionException() throws InterruptedException {
269	<	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
270	<	try {
271	<	se.shutdown();
272	<	se.scheduleWithFixedDelay(new NoOpRunnable(),
273	<	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS);
274	<	shouldThrow();
275	<	} catch (RejectedExecutionException success) {
276	<	} catch (SecurityException ok) {
277	<	}
278	<	joinPool(se);
287	>	assertEquals(p.getCorePoolSize(), p.getCompletedTaskCount());
288		}
289
290		/**
#	Line 283 | Line 292 | public class ScheduledExecutorTest exten
292		* thread becomes active
293		*/
294		public void testGetActiveCount() throws InterruptedException {
286	–	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(2);
287	–	final CountDownLatch threadStarted = new CountDownLatch(1);
295		final CountDownLatch done = new CountDownLatch(1);
296	<	try {
296	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(2);
297	>	try (PoolCleaner cleaner = cleaner(p, done)) {
298	>	final CountDownLatch threadStarted = new CountDownLatch(1);
299		assertEquals(0, p.getActiveCount());
300		p.execute(new CheckedRunnable() {
301		public void realRun() throws InterruptedException {
302		threadStarted.countDown();
303		assertEquals(1, p.getActiveCount());
304	<	done.await();
304	>	await(done);
305		}});
306	<	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
306	>	await(threadStarted);
307		assertEquals(1, p.getActiveCount());
299	–	} finally {
300	–	done.countDown();
301	–	joinPool(p);
308		}
309		}
310
#	Line 308 | Line 314 | public class ScheduledExecutorTest exten
314		*/
315		public void testGetCompletedTaskCount() throws InterruptedException {
316		final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(2);
317	<	final CountDownLatch threadStarted = new CountDownLatch(1);
318	<	final CountDownLatch threadProceed = new CountDownLatch(1);
319	<	final CountDownLatch threadDone = new CountDownLatch(1);
320	<	try {
317	>	try (PoolCleaner cleaner = cleaner(p)) {
318	>	final CountDownLatch threadStarted = new CountDownLatch(1);
319	>	final CountDownLatch threadProceed = new CountDownLatch(1);
320	>	final CountDownLatch threadDone = new CountDownLatch(1);
321		assertEquals(0, p.getCompletedTaskCount());
322		p.execute(new CheckedRunnable() {
323		public void realRun() throws InterruptedException {
324		threadStarted.countDown();
325		assertEquals(0, p.getCompletedTaskCount());
326	<	threadProceed.await();
326	>	await(threadProceed);
327		threadDone.countDown();
328		}});
329	<	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
329	>	await(threadStarted);
330		assertEquals(0, p.getCompletedTaskCount());
331		threadProceed.countDown();
332	<	threadDone.await();
332	>	await(threadDone);
333		long startTime = System.nanoTime();
334		while (p.getCompletedTaskCount() != 1) {
335		if (millisElapsedSince(startTime) > LONG_DELAY_MS)
336		fail("timed out");
337		Thread.yield();
338		}
333	–	} finally {
334	–	joinPool(p);
339		}
340		}
341
#	Line 340 | Line 344 | public class ScheduledExecutorTest exten
344		*/
345		public void testGetCorePoolSize() throws InterruptedException {
346		ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
347	<	assertEquals(1, p.getCorePoolSize());
348	<	joinPool(p);
347	>	try (PoolCleaner cleaner = cleaner(p)) {
348	>	assertEquals(1, p.getCorePoolSize());
349	>	}
350		}
351
352		/**
#	Line 353 | Line 358 | public class ScheduledExecutorTest exten
358		final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(THREADS);
359		final CountDownLatch threadsStarted = new CountDownLatch(THREADS);
360		final CountDownLatch done = new CountDownLatch(1);
361	<	try {
361	>	try (PoolCleaner cleaner = cleaner(p, done)) {
362		assertEquals(0, p.getLargestPoolSize());
363		for (int i = 0; i < THREADS; i++)
364		p.execute(new CheckedRunnable() {
365		public void realRun() throws InterruptedException {
366		threadsStarted.countDown();
367	<	done.await();
367	>	await(done);
368		assertEquals(THREADS, p.getLargestPoolSize());
369		}});
370	<	assertTrue(threadsStarted.await(SMALL_DELAY_MS, MILLISECONDS));
366	<	assertEquals(THREADS, p.getLargestPoolSize());
367	<	} finally {
368	<	done.countDown();
369	<	joinPool(p);
370	>	await(threadsStarted);
371		assertEquals(THREADS, p.getLargestPoolSize());
372		}
373	+	assertEquals(THREADS, p.getLargestPoolSize());
374		}
375
376		/**
#	Line 379 | Line 381 | public class ScheduledExecutorTest exten
381		final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
382		final CountDownLatch threadStarted = new CountDownLatch(1);
383		final CountDownLatch done = new CountDownLatch(1);
384	<	try {
384	>	try (PoolCleaner cleaner = cleaner(p, done)) {
385		assertEquals(0, p.getPoolSize());
386		p.execute(new CheckedRunnable() {
387		public void realRun() throws InterruptedException {
388		threadStarted.countDown();
389		assertEquals(1, p.getPoolSize());
390	<	done.await();
390	>	await(done);
391		}});
392	<	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
392	>	await(threadStarted);
393		assertEquals(1, p.getPoolSize());
392	–	} finally {
393	–	done.countDown();
394	–	joinPool(p);
394		}
395		}
396
#	Line 400 | Line 399 | public class ScheduledExecutorTest exten
399		* submitted
400		*/
401		public void testGetTaskCount() throws InterruptedException {
402	<	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
404	<	final CountDownLatch threadStarted = new CountDownLatch(1);
402	>	final int TASKS = 3;
403		final CountDownLatch done = new CountDownLatch(1);
404	<	final int TASKS = 5;
405	<	try {
404	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
405	>	try (PoolCleaner cleaner = cleaner(p, done)) {
406	>	final CountDownLatch threadStarted = new CountDownLatch(1);
407		assertEquals(0, p.getTaskCount());
408	<	for (int i = 0; i < TASKS; i++)
408	>	assertEquals(0, p.getCompletedTaskCount());
409	>	p.execute(new CheckedRunnable() {
410	>	public void realRun() throws InterruptedException {
411	>	threadStarted.countDown();
412	>	await(done);
413	>	}});
414	>	await(threadStarted);
415	>	assertEquals(1, p.getTaskCount());
416	>	assertEquals(0, p.getCompletedTaskCount());
417	>	for (int i = 0; i < TASKS; i++) {
418	>	assertEquals(1 + i, p.getTaskCount());
419		p.execute(new CheckedRunnable() {
420		public void realRun() throws InterruptedException {
421		threadStarted.countDown();
422	<	done.await();
422	>	assertEquals(1 + TASKS, p.getTaskCount());
423	>	await(done);
424		}});
425	<	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
426	<	assertEquals(TASKS, p.getTaskCount());
427	<	} finally {
418	<	done.countDown();
419	<	joinPool(p);
425	>	}
426	>	assertEquals(1 + TASKS, p.getTaskCount());
427	>	assertEquals(0, p.getCompletedTaskCount());
428		}
429	+	assertEquals(1 + TASKS, p.getTaskCount());
430	+	assertEquals(1 + TASKS, p.getCompletedTaskCount());
431		}
432
433		/**
434		* getThreadFactory returns factory in constructor if not set
435		*/
436		public void testGetThreadFactory() throws InterruptedException {
437	<	ThreadFactory tf = new SimpleThreadFactory();
438	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1, tf);
439	<	assertSame(tf, p.getThreadFactory());
440	<	joinPool(p);
437	>	final ThreadFactory threadFactory = new SimpleThreadFactory();
438	>	final ScheduledThreadPoolExecutor p =
439	>	new ScheduledThreadPoolExecutor(1, threadFactory);
440	>	try (PoolCleaner cleaner = cleaner(p)) {
441	>	assertSame(threadFactory, p.getThreadFactory());
442	>	}
443		}
444
445		/**
446		* setThreadFactory sets the thread factory returned by getThreadFactory
447		*/
448		public void testSetThreadFactory() throws InterruptedException {
449	<	ThreadFactory tf = new SimpleThreadFactory();
450	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
451	<	p.setThreadFactory(tf);
452	<	assertSame(tf, p.getThreadFactory());
453	<	joinPool(p);
449	>	ThreadFactory threadFactory = new SimpleThreadFactory();
450	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
451	>	try (PoolCleaner cleaner = cleaner(p)) {
452	>	p.setThreadFactory(threadFactory);
453	>	assertSame(threadFactory, p.getThreadFactory());
454	>	}
455		}
456
457		/**
458		* setThreadFactory(null) throws NPE
459		*/
460		public void testSetThreadFactoryNull() throws InterruptedException {
461	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
462	<	try {
463	<	p.setThreadFactory(null);
464	<	shouldThrow();
465	<	} catch (NullPointerException success) {
466	<	} finally {
467	<	joinPool(p);
461	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
462	>	try (PoolCleaner cleaner = cleaner(p)) {
463	>	try {
464	>	p.setThreadFactory(null);
465	>	shouldThrow();
466	>	} catch (NullPointerException success) {}
467	>	}
468	>	}
469	>
470	>	/**
471	>	* The default rejected execution handler is AbortPolicy.
472	>	*/
473	>	public void testDefaultRejectedExecutionHandler() {
474	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
475	>	try (PoolCleaner cleaner = cleaner(p)) {
476	>	assertTrue(p.getRejectedExecutionHandler()
477	>	instanceof ThreadPoolExecutor.AbortPolicy);
478		}
479		}
480
#	Line 459 | Line 482 | public class ScheduledExecutorTest exten
482		* isShutdown is false before shutdown, true after
483		*/
484		public void testIsShutdown() {
485	<
486	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
487	<	try {
488	<	assertFalse(p.isShutdown());
489	<	}
490	<	finally {
491	<	try { p.shutdown(); } catch (SecurityException ok) { return; }
485	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
486	>	assertFalse(p.isShutdown());
487	>	try (PoolCleaner cleaner = cleaner(p)) {
488	>	try {
489	>	p.shutdown();
490	>	assertTrue(p.isShutdown());
491	>	} catch (SecurityException ok) {}
492		}
470	–	assertTrue(p.isShutdown());
493		}
494
495		/**
#	Line 475 | Line 497 | public class ScheduledExecutorTest exten
497		*/
498		public void testIsTerminated() throws InterruptedException {
499		final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
500	<	final CountDownLatch threadStarted = new CountDownLatch(1);
501	<	final CountDownLatch done = new CountDownLatch(1);
502	<	assertFalse(p.isTerminated());
503	<	try {
500	>	try (PoolCleaner cleaner = cleaner(p)) {
501	>	final CountDownLatch threadStarted = new CountDownLatch(1);
502	>	final CountDownLatch done = new CountDownLatch(1);
503	>	assertFalse(p.isTerminated());
504		p.execute(new CheckedRunnable() {
505		public void realRun() throws InterruptedException {
506		assertFalse(p.isTerminated());
507		threadStarted.countDown();
508	<	done.await();
508	>	await(done);
509		}});
510	<	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
510	>	await(threadStarted);
511		assertFalse(p.isTerminating());
512		done.countDown();
491	–	} finally {
513		try { p.shutdown(); } catch (SecurityException ok) { return; }
514	+	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
515	+	assertTrue(p.isTerminated());
516		}
494	–	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
495	–	assertTrue(p.isTerminated());
517		}
518
519		/**
#	Line 502 | Line 523 | public class ScheduledExecutorTest exten
523		final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
524		final CountDownLatch threadStarted = new CountDownLatch(1);
525		final CountDownLatch done = new CountDownLatch(1);
526	<	try {
526	>	try (PoolCleaner cleaner = cleaner(p)) {
527		assertFalse(p.isTerminating());
528		p.execute(new CheckedRunnable() {
529		public void realRun() throws InterruptedException {
530		assertFalse(p.isTerminating());
531		threadStarted.countDown();
532	<	done.await();
532	>	await(done);
533		}});
534	<	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
534	>	await(threadStarted);
535		assertFalse(p.isTerminating());
536		done.countDown();
516	–	} finally {
537		try { p.shutdown(); } catch (SecurityException ok) { return; }
538	+	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
539	+	assertTrue(p.isTerminated());
540	+	assertFalse(p.isTerminating());
541		}
519	–	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
520	–	assertTrue(p.isTerminated());
521	–	assertFalse(p.isTerminating());
542		}
543
544		/**
545		* getQueue returns the work queue, which contains queued tasks
546		*/
547		public void testGetQueue() throws InterruptedException {
528	–	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
529	–	final CountDownLatch threadStarted = new CountDownLatch(1);
548		final CountDownLatch done = new CountDownLatch(1);
549	<	try {
549	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
550	>	try (PoolCleaner cleaner = cleaner(p, done)) {
551	>	final CountDownLatch threadStarted = new CountDownLatch(1);
552		ScheduledFuture[] tasks = new ScheduledFuture[5];
553		for (int i = 0; i < tasks.length; i++) {
554		Runnable r = new CheckedRunnable() {
555		public void realRun() throws InterruptedException {
556		threadStarted.countDown();
557	<	done.await();
557	>	await(done);
558		}};
559		tasks[i] = p.schedule(r, 1, MILLISECONDS);
560		}
561	<	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
561	>	await(threadStarted);
562		BlockingQueue<Runnable> q = p.getQueue();
563		assertTrue(q.contains(tasks[tasks.length - 1]));
564		assertFalse(q.contains(tasks[0]));
545	–	} finally {
546	–	done.countDown();
547	–	joinPool(p);
565		}
566		}
567
#	Line 552 | Line 569 | public class ScheduledExecutorTest exten
569		* remove(task) removes queued task, and fails to remove active task
570		*/
571		public void testRemove() throws InterruptedException {
555	–	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
556	–	ScheduledFuture[] tasks = new ScheduledFuture[5];
557	–	final CountDownLatch threadStarted = new CountDownLatch(1);
572		final CountDownLatch done = new CountDownLatch(1);
573	<	try {
573	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
574	>	try (PoolCleaner cleaner = cleaner(p, done)) {
575	>	ScheduledFuture[] tasks = new ScheduledFuture[5];
576	>	final CountDownLatch threadStarted = new CountDownLatch(1);
577		for (int i = 0; i < tasks.length; i++) {
578		Runnable r = new CheckedRunnable() {
579		public void realRun() throws InterruptedException {
580		threadStarted.countDown();
581	<	done.await();
581	>	await(done);
582		}};
583		tasks[i] = p.schedule(r, 1, MILLISECONDS);
584		}
585	<	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
585	>	await(threadStarted);
586		BlockingQueue<Runnable> q = p.getQueue();
587		assertFalse(p.remove((Runnable)tasks[0]));
588		assertTrue(q.contains((Runnable)tasks[4]));
#	Line 576 | Line 593 | public class ScheduledExecutorTest exten
593		assertTrue(q.contains((Runnable)tasks[3]));
594		assertTrue(p.remove((Runnable)tasks[3]));
595		assertFalse(q.contains((Runnable)tasks[3]));
579	–	} finally {
580	–	done.countDown();
581	–	joinPool(p);
596		}
597		}
598
#	Line 586 | Line 600 | public class ScheduledExecutorTest exten
600		* purge eventually removes cancelled tasks from the queue
601		*/
602		public void testPurge() throws InterruptedException {
603	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
604	<	ScheduledFuture[] tasks = new ScheduledFuture[5];
605	<	for (int i = 0; i < tasks.length; i++)
606	<	tasks[i] = p.schedule(new SmallPossiblyInterruptedRunnable(),
607	<	LONG_DELAY_MS, MILLISECONDS);
608	<	try {
603	>	final ScheduledFuture[] tasks = new ScheduledFuture[5];
604	>	final Runnable releaser = new Runnable() { public void run() {
605	>	for (ScheduledFuture task : tasks)
606	>	if (task != null) task.cancel(true); }};
607	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
608	>	try (PoolCleaner cleaner = cleaner(p, releaser)) {
609	>	for (int i = 0; i < tasks.length; i++)
610	>	tasks[i] = p.schedule(possiblyInterruptedRunnable(SMALL_DELAY_MS),
611	>	LONG_DELAY_MS, MILLISECONDS);
612		int max = tasks.length;
613		if (tasks[4].cancel(true)) --max;
614		if (tasks[3].cancel(true)) --max;
#	Line 603 | Line 620 | public class ScheduledExecutorTest exten
620		long count = p.getTaskCount();
621		if (count == max)
622		return;
623	<	} while (millisElapsedSince(startTime) < MEDIUM_DELAY_MS);
623	>	} while (millisElapsedSince(startTime) < LONG_DELAY_MS);
624		fail("Purge failed to remove cancelled tasks");
608	–	} finally {
609	–	for (ScheduledFuture task : tasks)
610	–	task.cancel(true);
611	–	joinPool(p);
625		}
626		}
627
628		/**
629	<	* shutdownNow returns a list containing tasks that were not run
629	>	* shutdownNow returns a list containing tasks that were not run,
630	>	* and those tasks are drained from the queue
631		*/
632	<	public void testShutdownNow() {
633	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
634	<	for (int i = 0; i < 5; i++)
635	<	p.schedule(new SmallPossiblyInterruptedRunnable(),
636	<	LONG_DELAY_MS, MILLISECONDS);
632	>	public void testShutdownNow() throws InterruptedException {
633	>	final int poolSize = 2;
634	>	final int count = 5;
635	>	final AtomicInteger ran = new AtomicInteger(0);
636	>	final ScheduledThreadPoolExecutor p =
637	>	new ScheduledThreadPoolExecutor(poolSize);
638	>	final CountDownLatch threadsStarted = new CountDownLatch(poolSize);
639	>	Runnable waiter = new CheckedRunnable() { public void realRun() {
640	>	threadsStarted.countDown();
641	>	try {
642	>	MILLISECONDS.sleep(2 * LONG_DELAY_MS);
643	>	} catch (InterruptedException success) {}
644	>	ran.getAndIncrement();
645	>	}};
646	>	for (int i = 0; i < count; i++)
647	>	p.execute(waiter);
648	>	await(threadsStarted);
649	>	assertEquals(poolSize, p.getActiveCount());
650	>	assertEquals(0, p.getCompletedTaskCount());
651	>	final List<Runnable> queuedTasks;
652		try {
653	<	List<Runnable> l = p.shutdownNow();
625	<	assertTrue(p.isShutdown());
626	<	assertEquals(5, l.size());
653	>	queuedTasks = p.shutdownNow();
654		} catch (SecurityException ok) {
655	<	// Allowed in case test doesn't have privs
629	<	} finally {
630	<	joinPool(p);
655	>	return; // Allowed in case test doesn't have privs
656		}
657	+	assertTrue(p.isShutdown());
658	+	assertTrue(p.getQueue().isEmpty());
659	+	assertEquals(count - poolSize, queuedTasks.size());
660	+	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
661	+	assertTrue(p.isTerminated());
662	+	assertEquals(poolSize, ran.get());
663	+	assertEquals(poolSize, p.getCompletedTaskCount());
664		}
665
666		/**
667	<	* In default setting, shutdown cancels periodic but not delayed
668	<	* tasks at shutdown
667	>	* shutdownNow returns a list containing tasks that were not run,
668	>	* and those tasks are drained from the queue
669		*/
670	<	public void testShutdown1() throws InterruptedException {
671	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
672	<	assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
673	<	assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
674	<
675	<	ScheduledFuture[] tasks = new ScheduledFuture[5];
676	<	for (int i = 0; i < tasks.length; i++)
677	<	tasks[i] = p.schedule(new NoOpRunnable(),
678	<	SHORT_DELAY_MS, MILLISECONDS);
679	<	try { p.shutdown(); } catch (SecurityException ok) { return; }
680	<	BlockingQueue<Runnable> q = p.getQueue();
681	<	for (ScheduledFuture task : tasks) {
682	<	assertFalse(task.isDone());
683	<	assertFalse(task.isCancelled());
684	<	assertTrue(q.contains(task));
670	>	public void testShutdownNow_delayedTasks() throws InterruptedException {
671	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
672	>	List<ScheduledFuture> tasks = new ArrayList<>();
673	>	for (int i = 0; i < 3; i++) {
674	>	Runnable r = new NoOpRunnable();
675	>	tasks.add(p.schedule(r, 9, SECONDS));
676	>	tasks.add(p.scheduleAtFixedRate(r, 9, 9, SECONDS));
677	>	tasks.add(p.scheduleWithFixedDelay(r, 9, 9, SECONDS));
678	>	}
679	>	if (testImplementationDetails)
680	>	assertEquals(new HashSet(tasks), new HashSet(p.getQueue()));
681	>	final List<Runnable> queuedTasks;
682	>	try {
683	>	queuedTasks = p.shutdownNow();
684	>	} catch (SecurityException ok) {
685	>	return; // Allowed in case test doesn't have privs
686		}
687		assertTrue(p.isShutdown());
688	<	assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS));
689	<	assertTrue(p.isTerminated());
688	>	assertTrue(p.getQueue().isEmpty());
689	>	if (testImplementationDetails)
690	>	assertEquals(new HashSet(tasks), new HashSet(queuedTasks));
691	>	assertEquals(tasks.size(), queuedTasks.size());
692		for (ScheduledFuture task : tasks) {
693	<	assertTrue(task.isDone());
693	>	assertFalse(task.isDone());
694		assertFalse(task.isCancelled());
695		}
696	+	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
697	+	assertTrue(p.isTerminated());
698		}
699
700		/**
701	<	* If setExecuteExistingDelayedTasksAfterShutdownPolicy is false,
702	<	* delayed tasks are cancelled at shutdown
703	<	*/
704	<	public void testShutdown2() throws InterruptedException {
705	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
706	<	p.setExecuteExistingDelayedTasksAfterShutdownPolicy(false);
707	<	assertFalse(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
708	<	assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
709	<	ScheduledFuture[] tasks = new ScheduledFuture[5];
710	<	for (int i = 0; i < tasks.length; i++)
711	<	tasks[i] = p.schedule(new NoOpRunnable(),
712	<	SHORT_DELAY_MS, MILLISECONDS);
713	<	BlockingQueue q = p.getQueue();
714	<	assertEquals(tasks.length, q.size());
715	<	try { p.shutdown(); } catch (SecurityException ok) { return; }
716	<	assertTrue(p.isShutdown());
717	<	assertTrue(q.isEmpty());
718	<	assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS));
719	<	assertTrue(p.isTerminated());
720	<	for (ScheduledFuture task : tasks) {
721	<	assertTrue(task.isDone());
722	<	assertTrue(task.isCancelled());
701	>	* By default, periodic tasks are cancelled at shutdown.
702	>	* By default, delayed tasks keep running after shutdown.
703	>	* Check that changing the default values work:
704	>	* - setExecuteExistingDelayedTasksAfterShutdownPolicy
705	>	* - setContinueExistingPeriodicTasksAfterShutdownPolicy
706	>	*/
707	>	@SuppressWarnings("FutureReturnValueIgnored")
708	>	public void testShutdown_cancellation() throws Exception {
709	>	final int poolSize = 4;
710	>	final ScheduledThreadPoolExecutor p
711	>	= new ScheduledThreadPoolExecutor(poolSize);
712	>	final BlockingQueue<Runnable> q = p.getQueue();
713	>	final ThreadLocalRandom rnd = ThreadLocalRandom.current();
714	>	final long delay = rnd.nextInt(2);
715	>	final int rounds = rnd.nextInt(1, 3);
716	>	final boolean effectiveDelayedPolicy;
717	>	final boolean effectivePeriodicPolicy;
718	>	final boolean effectiveRemovePolicy;
719	>
720	>	if (rnd.nextBoolean())
721	>	p.setExecuteExistingDelayedTasksAfterShutdownPolicy(
722	>	effectiveDelayedPolicy = rnd.nextBoolean());
723	>	else
724	>	effectiveDelayedPolicy = true;
725	>	assertEquals(effectiveDelayedPolicy,
726	>	p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
727	>
728	>	if (rnd.nextBoolean())
729	>	p.setContinueExistingPeriodicTasksAfterShutdownPolicy(
730	>	effectivePeriodicPolicy = rnd.nextBoolean());
731	>	else
732	>	effectivePeriodicPolicy = false;
733	>	assertEquals(effectivePeriodicPolicy,
734	>	p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
735	>
736	>	if (rnd.nextBoolean())
737	>	p.setRemoveOnCancelPolicy(
738	>	effectiveRemovePolicy = rnd.nextBoolean());
739	>	else
740	>	effectiveRemovePolicy = false;
741	>	assertEquals(effectiveRemovePolicy,
742	>	p.getRemoveOnCancelPolicy());
743	>
744	>	final boolean periodicTasksContinue = effectivePeriodicPolicy && rnd.nextBoolean();
745	>
746	>	// Strategy: Wedge the pool with one wave of "blocker" tasks,
747	>	// then add a second wave that waits in the queue until unblocked.
748	>	final AtomicInteger ran = new AtomicInteger(0);
749	>	final CountDownLatch poolBlocked = new CountDownLatch(poolSize);
750	>	final CountDownLatch unblock = new CountDownLatch(1);
751	>	final RuntimeException exception = new RuntimeException();
752	>
753	>	class Task implements Runnable {
754	>	public void run() {
755	>	try {
756	>	ran.getAndIncrement();
757	>	poolBlocked.countDown();
758	>	await(unblock);
759	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
760	>	}
761		}
687	–	}
762
763	<	/**
764	<	* If setContinueExistingPeriodicTasksAfterShutdownPolicy is set false,
765	<	* periodic tasks are cancelled at shutdown
766	<	*/
767	<	public void testShutdown3() throws InterruptedException {
768	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
769	<	assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
770	<	assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
771	<	p.setContinueExistingPeriodicTasksAfterShutdownPolicy(false);
772	<	assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
773	<	assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
774	<	long initialDelay = LONG_DELAY_MS;
775	<	ScheduledFuture task =
776	<	p.scheduleAtFixedRate(new NoOpRunnable(), initialDelay,
777	<	5, MILLISECONDS);
763	>	class PeriodicTask extends Task {
764	>	PeriodicTask(int rounds) { this.rounds = rounds; }
765	>	int rounds;
766	>	public void run() {
767	>	if (--rounds == 0) super.run();
768	>	// throw exception to surely terminate this periodic task,
769	>	// but in a separate execution and in a detectable way.
770	>	if (rounds == -1) throw exception;
771	>	}
772	>	}
773	>
774	>	Runnable task = new Task();
775	>
776	>	List<Future<?>> immediates = new ArrayList<>();
777	>	List<Future<?>> delayeds   = new ArrayList<>();
778	>	List<Future<?>> periodics  = new ArrayList<>();
779	>
780	>	immediates.add(p.submit(task));
781	>	delayeds.add(p.schedule(task, delay, MILLISECONDS));
782	>	periodics.add(p.scheduleAtFixedRate(
783	>	new PeriodicTask(rounds), delay, 1, MILLISECONDS));
784	>	periodics.add(p.scheduleWithFixedDelay(
785	>	new PeriodicTask(rounds), delay, 1, MILLISECONDS));
786	>
787	>	await(poolBlocked);
788	>
789	>	assertEquals(poolSize, ran.get());
790	>	assertEquals(poolSize, p.getActiveCount());
791	>	assertTrue(q.isEmpty());
792	>
793	>	// Add second wave of tasks.
794	>	immediates.add(p.submit(task));
795	>	delayeds.add(p.schedule(task, effectiveDelayedPolicy ? delay : LONG_DELAY_MS, MILLISECONDS));
796	>	periodics.add(p.scheduleAtFixedRate(
797	>	new PeriodicTask(rounds), delay, 1, MILLISECONDS));
798	>	periodics.add(p.scheduleWithFixedDelay(
799	>	new PeriodicTask(rounds), delay, 1, MILLISECONDS));
800	>
801	>	assertEquals(poolSize, q.size());
802	>	assertEquals(poolSize, ran.get());
803	>
804	>	immediates.forEach(
805	>	f -> assertTrue(((ScheduledFuture)f).getDelay(NANOSECONDS) <= 0L));
806	>
807	>	Stream.of(immediates, delayeds, periodics).flatMap(Collection::stream)
808	>	.forEach(f -> assertFalse(f.isDone()));
809	>
810		try { p.shutdown(); } catch (SecurityException ok) { return; }
811		assertTrue(p.isShutdown());
812	<	assertTrue(p.getQueue().isEmpty());
813	<	assertTrue(task.isDone());
708	<	assertTrue(task.isCancelled());
709	<	joinPool(p);
710	<	}
812	>	assertTrue(p.isTerminating());
813	>	assertFalse(p.isTerminated());
814
815	<	/**
816	<	* if setContinueExistingPeriodicTasksAfterShutdownPolicy is true,
817	<	* periodic tasks are not cancelled at shutdown
818	<	*/
819	<	public void testShutdown4() throws InterruptedException {
820	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
821	<	final CountDownLatch counter = new CountDownLatch(2);
822	<	try {
823	<	p.setContinueExistingPeriodicTasksAfterShutdownPolicy(true);
824	<	assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
825	<	assertTrue(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
826	<	final Runnable r = new CheckedRunnable() {
827	<	public void realRun() {
828	<	counter.countDown();
829	<	}};
830	<	ScheduledFuture task =
831	<	p.scheduleAtFixedRate(r, 1, 1, MILLISECONDS);
832	<	assertFalse(task.isDone());
833	<	assertFalse(task.isCancelled());
834	<	try { p.shutdown(); } catch (SecurityException ok) { return; }
835	<	assertFalse(task.isCancelled());
836	<	assertFalse(p.isTerminated());
837	<	assertTrue(p.isShutdown());
838	<	assertTrue(counter.await(SMALL_DELAY_MS, MILLISECONDS));
839	<	assertFalse(task.isCancelled());
840	<	assertTrue(task.cancel(false));
841	<	assertTrue(task.isDone());
842	<	assertTrue(task.isCancelled());
843	<	assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS));
844	<	assertTrue(p.isTerminated());
845	<	}
846	<	finally {
847	<	joinPool(p);
815	>	if (rnd.nextBoolean())
816	>	assertThrows(
817	>	RejectedExecutionException.class,
818	>	() -> p.submit(task),
819	>	() -> p.schedule(task, 1, SECONDS),
820	>	() -> p.scheduleAtFixedRate(
821	>	new PeriodicTask(1), 1, 1, SECONDS),
822	>	() -> p.scheduleWithFixedDelay(
823	>	new PeriodicTask(2), 1, 1, SECONDS));
824	>
825	>	assertTrue(q.contains(immediates.get(1)));
826	>	assertTrue(!effectiveDelayedPolicy
827	>	^ q.contains(delayeds.get(1)));
828	>	assertTrue(!effectivePeriodicPolicy
829	>	^ q.containsAll(periodics.subList(2, 4)));
830	>
831	>	immediates.forEach(f -> assertFalse(f.isDone()));
832	>
833	>	assertFalse(delayeds.get(0).isDone());
834	>	if (effectiveDelayedPolicy)
835	>	assertFalse(delayeds.get(1).isDone());
836	>	else
837	>	assertTrue(delayeds.get(1).isCancelled());
838	>
839	>	if (effectivePeriodicPolicy)
840	>	periodics.forEach(
841	>	f -> {
842	>	assertFalse(f.isDone());
843	>	if (!periodicTasksContinue) {
844	>	assertTrue(f.cancel(false));
845	>	assertTrue(f.isCancelled());
846	>	}
847	>	});
848	>	else {
849	>	periodics.subList(0, 2).forEach(f -> assertFalse(f.isDone()));
850	>	periodics.subList(2, 4).forEach(f -> assertTrue(f.isCancelled()));
851		}
852	+
853	+	unblock.countDown();    // Release all pool threads
854	+
855	+	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
856	+	assertFalse(p.isTerminating());
857	+	assertTrue(p.isTerminated());
858	+
859	+	assertTrue(q.isEmpty());
860	+
861	+	Stream.of(immediates, delayeds, periodics).flatMap(Collection::stream)
862	+	.forEach(f -> assertTrue(f.isDone()));
863	+
864	+	for (Future<?> f : immediates) assertNull(f.get());
865	+
866	+	assertNull(delayeds.get(0).get());
867	+	if (effectiveDelayedPolicy)
868	+	assertNull(delayeds.get(1).get());
869	+	else
870	+	assertTrue(delayeds.get(1).isCancelled());
871	+
872	+	if (periodicTasksContinue)
873	+	periodics.forEach(
874	+	f -> {
875	+	try { f.get(); }
876	+	catch (ExecutionException success) {
877	+	assertSame(exception, success.getCause());
878	+	}
879	+	catch (Throwable fail) { threadUnexpectedException(fail); }
880	+	});
881	+	else
882	+	periodics.forEach(f -> assertTrue(f.isCancelled()));
883	+
884	+	assertEquals(poolSize + 1
885	+	+ (effectiveDelayedPolicy ? 1 : 0)
886	+	+ (periodicTasksContinue ? 2 : 0),
887	+	ran.get());
888		}
889
890		/**
891		* completed submit of callable returns result
892		*/
893		public void testSubmitCallable() throws Exception {
894	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
895	<	try {
894	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
895	>	try (PoolCleaner cleaner = cleaner(e)) {
896		Future<String> future = e.submit(new StringTask());
897		String result = future.get();
898		assertSame(TEST_STRING, result);
757	–	} finally {
758	–	joinPool(e);
899		}
900		}
901
#	Line 763 | Line 903 | public class ScheduledExecutorTest exten
903		* completed submit of runnable returns successfully
904		*/
905		public void testSubmitRunnable() throws Exception {
906	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
907	<	try {
906	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
907	>	try (PoolCleaner cleaner = cleaner(e)) {
908		Future<?> future = e.submit(new NoOpRunnable());
909		future.get();
910		assertTrue(future.isDone());
771	–	} finally {
772	–	joinPool(e);
911		}
912		}
913
#	Line 777 | Line 915 | public class ScheduledExecutorTest exten
915		* completed submit of (runnable, result) returns result
916		*/
917		public void testSubmitRunnable2() throws Exception {
918	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
919	<	try {
918	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
919	>	try (PoolCleaner cleaner = cleaner(e)) {
920		Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING);
921		String result = future.get();
922		assertSame(TEST_STRING, result);
785	–	} finally {
786	–	joinPool(e);
923		}
924		}
925
926		/**
927	<	* invokeAny(null) throws NPE
927	>	* invokeAny(null) throws NullPointerException
928		*/
929		public void testInvokeAny1() throws Exception {
930	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
931	<	try {
932	<	e.invokeAny(null);
933	<	shouldThrow();
934	<	} catch (NullPointerException success) {
935	<	} finally {
800	<	joinPool(e);
930	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
931	>	try (PoolCleaner cleaner = cleaner(e)) {
932	>	try {
933	>	e.invokeAny(null);
934	>	shouldThrow();
935	>	} catch (NullPointerException success) {}
936		}
937		}
938
939		/**
940	<	* invokeAny(empty collection) throws IAE
940	>	* invokeAny(empty collection) throws IllegalArgumentException
941		*/
942		public void testInvokeAny2() throws Exception {
943	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
944	<	try {
945	<	e.invokeAny(new ArrayList<Callable<String>>());
946	<	shouldThrow();
947	<	} catch (IllegalArgumentException success) {
948	<	} finally {
814	<	joinPool(e);
943	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
944	>	try (PoolCleaner cleaner = cleaner(e)) {
945	>	try {
946	>	e.invokeAny(new ArrayList<Callable<String>>());
947	>	shouldThrow();
948	>	} catch (IllegalArgumentException success) {}
949		}
950		}
951
952		/**
953	<	* invokeAny(c) throws NPE if c has null elements
953	>	* invokeAny(c) throws NullPointerException if c has null elements
954		*/
955		public void testInvokeAny3() throws Exception {
956		CountDownLatch latch = new CountDownLatch(1);
957	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
958	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
959	<	l.add(latchAwaitingStringTask(latch));
960	<	l.add(null);
961	<	try {
962	<	e.invokeAny(l);
963	<	shouldThrow();
964	<	} catch (NullPointerException success) {
965	<	} finally {
957	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
958	>	try (PoolCleaner cleaner = cleaner(e)) {
959	>	List<Callable<String>> l = new ArrayList<>();
960	>	l.add(latchAwaitingStringTask(latch));
961	>	l.add(null);
962	>	try {
963	>	e.invokeAny(l);
964	>	shouldThrow();
965	>	} catch (NullPointerException success) {}
966		latch.countDown();
833	–	joinPool(e);
967		}
968		}
969
#	Line 838 | Line 971 | public class ScheduledExecutorTest exten
971		* invokeAny(c) throws ExecutionException if no task completes
972		*/
973		public void testInvokeAny4() throws Exception {
974	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
975	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
976	<	l.add(new NPETask());
977	<	try {
978	<	e.invokeAny(l);
979	<	shouldThrow();
980	<	} catch (ExecutionException success) {
981	<	assertTrue(success.getCause() instanceof NullPointerException);
982	<	} finally {
983	<	joinPool(e);
974	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
975	>	try (PoolCleaner cleaner = cleaner(e)) {
976	>	List<Callable<String>> l = new ArrayList<>();
977	>	l.add(new NPETask());
978	>	try {
979	>	e.invokeAny(l);
980	>	shouldThrow();
981	>	} catch (ExecutionException success) {
982	>	assertTrue(success.getCause() instanceof NullPointerException);
983	>	}
984		}
985		}
986
#	Line 855 | Line 988 | public class ScheduledExecutorTest exten
988		* invokeAny(c) returns result of some task
989		*/
990		public void testInvokeAny5() throws Exception {
991	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
992	<	try {
993	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
991	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
992	>	try (PoolCleaner cleaner = cleaner(e)) {
993	>	List<Callable<String>> l = new ArrayList<>();
994		l.add(new StringTask());
995		l.add(new StringTask());
996		String result = e.invokeAny(l);
997		assertSame(TEST_STRING, result);
865	–	} finally {
866	–	joinPool(e);
998		}
999		}
1000
#	Line 871 | Line 1002 | public class ScheduledExecutorTest exten
1002		* invokeAll(null) throws NPE
1003		*/
1004		public void testInvokeAll1() throws Exception {
1005	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1006	<	try {
1007	<	e.invokeAll(null);
1008	<	shouldThrow();
1009	<	} catch (NullPointerException success) {
1010	<	} finally {
880	<	joinPool(e);
1005	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1006	>	try (PoolCleaner cleaner = cleaner(e)) {
1007	>	try {
1008	>	e.invokeAll(null);
1009	>	shouldThrow();
1010	>	} catch (NullPointerException success) {}
1011		}
1012		}
1013
1014		/**
1015	<	* invokeAll(empty collection) returns empty collection
1015	>	* invokeAll(empty collection) returns empty list
1016		*/
1017		public void testInvokeAll2() throws Exception {
1018	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1019	<	try {
1020	<	List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>());
1018	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1019	>	final Collection<Callable<String>> emptyCollection
1020	>	= Collections.emptyList();
1021	>	try (PoolCleaner cleaner = cleaner(e)) {
1022	>	List<Future<String>> r = e.invokeAll(emptyCollection);
1023		assertTrue(r.isEmpty());
892	–	} finally {
893	–	joinPool(e);
1024		}
1025		}
1026
#	Line 898 | Line 1028 | public class ScheduledExecutorTest exten
1028		* invokeAll(c) throws NPE if c has null elements
1029		*/
1030		public void testInvokeAll3() throws Exception {
1031	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1032	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1033	<	l.add(new StringTask());
1034	<	l.add(null);
1035	<	try {
1036	<	e.invokeAll(l);
1037	<	shouldThrow();
1038	<	} catch (NullPointerException success) {
1039	<	} finally {
910	<	joinPool(e);
1031	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1032	>	try (PoolCleaner cleaner = cleaner(e)) {
1033	>	List<Callable<String>> l = new ArrayList<>();
1034	>	l.add(new StringTask());
1035	>	l.add(null);
1036	>	try {
1037	>	e.invokeAll(l);
1038	>	shouldThrow();
1039	>	} catch (NullPointerException success) {}
1040		}
1041		}
1042
#	Line 915 | Line 1044 | public class ScheduledExecutorTest exten
1044		* get of invokeAll(c) throws exception on failed task
1045		*/
1046		public void testInvokeAll4() throws Exception {
1047	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1048	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1049	<	l.add(new NPETask());
1050	<	List<Future<String>> futures = e.invokeAll(l);
1051	<	assertEquals(1, futures.size());
1052	<	try {
1053	<	futures.get(0).get();
1054	<	shouldThrow();
1055	<	} catch (ExecutionException success) {
1056	<	assertTrue(success.getCause() instanceof NullPointerException);
1057	<	} finally {
1058	<	joinPool(e);
1047	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1048	>	try (PoolCleaner cleaner = cleaner(e)) {
1049	>	List<Callable<String>> l = new ArrayList<>();
1050	>	l.add(new NPETask());
1051	>	List<Future<String>> futures = e.invokeAll(l);
1052	>	assertEquals(1, futures.size());
1053	>	try {
1054	>	futures.get(0).get();
1055	>	shouldThrow();
1056	>	} catch (ExecutionException success) {
1057	>	assertTrue(success.getCause() instanceof NullPointerException);
1058	>	}
1059		}
1060		}
1061
#	Line 934 | Line 1063 | public class ScheduledExecutorTest exten
1063		* invokeAll(c) returns results of all completed tasks
1064		*/
1065		public void testInvokeAll5() throws Exception {
1066	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1067	<	try {
1068	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1066	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1067	>	try (PoolCleaner cleaner = cleaner(e)) {
1068	>	List<Callable<String>> l = new ArrayList<>();
1069		l.add(new StringTask());
1070		l.add(new StringTask());
1071		List<Future<String>> futures = e.invokeAll(l);
1072		assertEquals(2, futures.size());
1073		for (Future<String> future : futures)
1074		assertSame(TEST_STRING, future.get());
946	–	} finally {
947	–	joinPool(e);
1075		}
1076		}
1077
#	Line 952 | Line 1079 | public class ScheduledExecutorTest exten
1079		* timed invokeAny(null) throws NPE
1080		*/
1081		public void testTimedInvokeAny1() throws Exception {
1082	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1083	<	try {
1084	<	e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS);
1085	<	shouldThrow();
1086	<	} catch (NullPointerException success) {
1087	<	} finally {
961	<	joinPool(e);
1082	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1083	>	try (PoolCleaner cleaner = cleaner(e)) {
1084	>	try {
1085	>	e.invokeAny(null, randomTimeout(), randomTimeUnit());
1086	>	shouldThrow();
1087	>	} catch (NullPointerException success) {}
1088		}
1089		}
1090
1091		/**
1092	<	* timed invokeAny(,,null) throws NPE
1092	>	* timed invokeAny(,,null) throws NullPointerException
1093		*/
1094		public void testTimedInvokeAnyNullTimeUnit() throws Exception {
1095	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1096	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1097	<	l.add(new StringTask());
1098	<	try {
1099	<	e.invokeAny(l, MEDIUM_DELAY_MS, null);
1100	<	shouldThrow();
1101	<	} catch (NullPointerException success) {
1102	<	} finally {
977	<	joinPool(e);
1095	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1096	>	try (PoolCleaner cleaner = cleaner(e)) {
1097	>	List<Callable<String>> l = new ArrayList<>();
1098	>	l.add(new StringTask());
1099	>	try {
1100	>	e.invokeAny(l, randomTimeout(), null);
1101	>	shouldThrow();
1102	>	} catch (NullPointerException success) {}
1103		}
1104		}
1105
1106		/**
1107	<	* timed invokeAny(empty collection) throws IAE
1107	>	* timed invokeAny(empty collection) throws IllegalArgumentException
1108		*/
1109		public void testTimedInvokeAny2() throws Exception {
1110	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1111	<	try {
1112	<	e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
1113	<	shouldThrow();
1114	<	} catch (IllegalArgumentException success) {
1115	<	} finally {
1116	<	joinPool(e);
1110	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1111	>	final Collection<Callable<String>> emptyCollection
1112	>	= Collections.emptyList();
1113	>	try (PoolCleaner cleaner = cleaner(e)) {
1114	>	try {
1115	>	e.invokeAny(emptyCollection, randomTimeout(), randomTimeUnit());
1116	>	shouldThrow();
1117	>	} catch (IllegalArgumentException success) {}
1118		}
1119		}
1120
#	Line 997 | Line 1123 | public class ScheduledExecutorTest exten
1123		*/
1124		public void testTimedInvokeAny3() throws Exception {
1125		CountDownLatch latch = new CountDownLatch(1);
1126	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1127	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1128	<	l.add(latchAwaitingStringTask(latch));
1129	<	l.add(null);
1130	<	try {
1131	<	e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1132	<	shouldThrow();
1133	<	} catch (NullPointerException success) {
1134	<	} finally {
1126	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1127	>	try (PoolCleaner cleaner = cleaner(e)) {
1128	>	List<Callable<String>> l = new ArrayList<>();
1129	>	l.add(latchAwaitingStringTask(latch));
1130	>	l.add(null);
1131	>	try {
1132	>	e.invokeAny(l, randomTimeout(), randomTimeUnit());
1133	>	shouldThrow();
1134	>	} catch (NullPointerException success) {}
1135		latch.countDown();
1010	–	joinPool(e);
1136		}
1137		}
1138
#	Line 1015 | Line 1140 | public class ScheduledExecutorTest exten
1140		* timed invokeAny(c) throws ExecutionException if no task completes
1141		*/
1142		public void testTimedInvokeAny4() throws Exception {
1143	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1144	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1145	<	l.add(new NPETask());
1146	<	try {
1147	<	e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1148	<	shouldThrow();
1149	<	} catch (ExecutionException success) {
1150	<	assertTrue(success.getCause() instanceof NullPointerException);
1151	<	} finally {
1152	<	joinPool(e);
1143	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1144	>	try (PoolCleaner cleaner = cleaner(e)) {
1145	>	long startTime = System.nanoTime();
1146	>	List<Callable<String>> l = new ArrayList<>();
1147	>	l.add(new NPETask());
1148	>	try {
1149	>	e.invokeAny(l, LONG_DELAY_MS, MILLISECONDS);
1150	>	shouldThrow();
1151	>	} catch (ExecutionException success) {
1152	>	assertTrue(success.getCause() instanceof NullPointerException);
1153	>	}
1154	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1155		}
1156		}
1157
#	Line 1032 | Line 1159 | public class ScheduledExecutorTest exten
1159		* timed invokeAny(c) returns result of some task
1160		*/
1161		public void testTimedInvokeAny5() throws Exception {
1162	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1163	<	try {
1164	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1162	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1163	>	try (PoolCleaner cleaner = cleaner(e)) {
1164	>	long startTime = System.nanoTime();
1165	>	List<Callable<String>> l = new ArrayList<>();
1166		l.add(new StringTask());
1167		l.add(new StringTask());
1168	<	String result = e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1168	>	String result = e.invokeAny(l, LONG_DELAY_MS, MILLISECONDS);
1169		assertSame(TEST_STRING, result);
1170	<	} finally {
1043	<	joinPool(e);
1170	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1171		}
1172		}
1173
#	Line 1048 | Line 1175 | public class ScheduledExecutorTest exten
1175		* timed invokeAll(null) throws NPE
1176		*/
1177		public void testTimedInvokeAll1() throws Exception {
1178	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1179	<	try {
1180	<	e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS);
1181	<	shouldThrow();
1182	<	} catch (NullPointerException success) {
1183	<	} finally {
1057	<	joinPool(e);
1178	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1179	>	try (PoolCleaner cleaner = cleaner(e)) {
1180	>	try {
1181	>	e.invokeAll(null, randomTimeout(), randomTimeUnit());
1182	>	shouldThrow();
1183	>	} catch (NullPointerException success) {}
1184		}
1185		}
1186
#	Line 1062 | Line 1188 | public class ScheduledExecutorTest exten
1188		* timed invokeAll(,,null) throws NPE
1189		*/
1190		public void testTimedInvokeAllNullTimeUnit() throws Exception {
1191	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1192	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1193	<	l.add(new StringTask());
1194	<	try {
1195	<	e.invokeAll(l, MEDIUM_DELAY_MS, null);
1196	<	shouldThrow();
1197	<	} catch (NullPointerException success) {
1198	<	} finally {
1073	<	joinPool(e);
1191	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1192	>	try (PoolCleaner cleaner = cleaner(e)) {
1193	>	List<Callable<String>> l = new ArrayList<>();
1194	>	l.add(new StringTask());
1195	>	try {
1196	>	e.invokeAll(l, randomTimeout(), null);
1197	>	shouldThrow();
1198	>	} catch (NullPointerException success) {}
1199		}
1200		}
1201
1202		/**
1203	<	* timed invokeAll(empty collection) returns empty collection
1203	>	* timed invokeAll(empty collection) returns empty list
1204		*/
1205		public void testTimedInvokeAll2() throws Exception {
1206	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1207	<	try {
1208	<	List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
1206	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1207	>	final Collection<Callable<String>> emptyCollection
1208	>	= Collections.emptyList();
1209	>	try (PoolCleaner cleaner = cleaner(e)) {
1210	>	List<Future<String>> r =
1211	>	e.invokeAll(emptyCollection, randomTimeout(), randomTimeUnit());
1212		assertTrue(r.isEmpty());
1085	–	} finally {
1086	–	joinPool(e);
1213		}
1214		}
1215
#	Line 1091 | Line 1217 | public class ScheduledExecutorTest exten
1217		* timed invokeAll(c) throws NPE if c has null elements
1218		*/
1219		public void testTimedInvokeAll3() throws Exception {
1220	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1221	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1222	<	l.add(new StringTask());
1223	<	l.add(null);
1224	<	try {
1225	<	e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1226	<	shouldThrow();
1227	<	} catch (NullPointerException success) {
1228	<	} finally {
1103	<	joinPool(e);
1220	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1221	>	try (PoolCleaner cleaner = cleaner(e)) {
1222	>	List<Callable<String>> l = new ArrayList<>();
1223	>	l.add(new StringTask());
1224	>	l.add(null);
1225	>	try {
1226	>	e.invokeAll(l, randomTimeout(), randomTimeUnit());
1227	>	shouldThrow();
1228	>	} catch (NullPointerException success) {}
1229		}
1230		}
1231
#	Line 1108 | Line 1233 | public class ScheduledExecutorTest exten
1233		* get of element of invokeAll(c) throws exception on failed task
1234		*/
1235		public void testTimedInvokeAll4() throws Exception {
1236	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1237	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1238	<	l.add(new NPETask());
1239	<	List<Future<String>> futures =
1240	<	e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1241	<	assertEquals(1, futures.size());
1242	<	try {
1243	<	futures.get(0).get();
1244	<	shouldThrow();
1245	<	} catch (ExecutionException success) {
1246	<	assertTrue(success.getCause() instanceof NullPointerException);
1247	<	} finally {
1248	<	joinPool(e);
1236	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1237	>	try (PoolCleaner cleaner = cleaner(e)) {
1238	>	List<Callable<String>> l = new ArrayList<>();
1239	>	l.add(new NPETask());
1240	>	List<Future<String>> futures =
1241	>	e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS);
1242	>	assertEquals(1, futures.size());
1243	>	try {
1244	>	futures.get(0).get();
1245	>	shouldThrow();
1246	>	} catch (ExecutionException success) {
1247	>	assertTrue(success.getCause() instanceof NullPointerException);
1248	>	}
1249		}
1250		}
1251
#	Line 1128 | Line 1253 | public class ScheduledExecutorTest exten
1253		* timed invokeAll(c) returns results of all completed tasks
1254		*/
1255		public void testTimedInvokeAll5() throws Exception {
1256	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1257	<	try {
1258	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1256	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1257	>	try (PoolCleaner cleaner = cleaner(e)) {
1258	>	List<Callable<String>> l = new ArrayList<>();
1259		l.add(new StringTask());
1260		l.add(new StringTask());
1261		List<Future<String>> futures =
1262	<	e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1262	>	e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS);
1263		assertEquals(2, futures.size());
1264		for (Future<String> future : futures)
1265		assertSame(TEST_STRING, future.get());
1141	–	} finally {
1142	–	joinPool(e);
1266		}
1267		}
1268
#	Line 1147 | Line 1270 | public class ScheduledExecutorTest exten
1270		* timed invokeAll(c) cancels tasks not completed by timeout
1271		*/
1272		public void testTimedInvokeAll6() throws Exception {
1273	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1274	<	try {
1275	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1276	<	l.add(new StringTask());
1277	<	l.add(Executors.callable(new MediumPossiblyInterruptedRunnable(), TEST_STRING));
1278	<	l.add(new StringTask());
1279	<	List<Future<String>> futures =
1280	<	e.invokeAll(l, SHORT_DELAY_MS, MILLISECONDS);
1281	<	assertEquals(3, futures.size());
1282	<	Iterator<Future<String>> it = futures.iterator();
1283	<	Future<String> f1 = it.next();
1284	<	Future<String> f2 = it.next();
1285	<	Future<String> f3 = it.next();
1286	<	assertTrue(f1.isDone());
1287	<	assertTrue(f2.isDone());
1288	<	assertTrue(f3.isDone());
1289	<	assertFalse(f1.isCancelled());
1290	<	assertTrue(f2.isCancelled());
1291	<	} finally {
1292	<	joinPool(e);
1273	>	for (long timeout = timeoutMillis();;) {
1274	>	final CountDownLatch done = new CountDownLatch(1);
1275	>	final Callable<String> waiter = new CheckedCallable<String>() {
1276	>	public String realCall() {
1277	>	try { done.await(LONG_DELAY_MS, MILLISECONDS); }
1278	>	catch (InterruptedException ok) {}
1279	>	return "1"; }};
1280	>	final ExecutorService p = new ScheduledThreadPoolExecutor(2);
1281	>	try (PoolCleaner cleaner = cleaner(p, done)) {
1282	>	List<Callable<String>> tasks = new ArrayList<>();
1283	>	tasks.add(new StringTask("0"));
1284	>	tasks.add(waiter);
1285	>	tasks.add(new StringTask("2"));
1286	>	long startTime = System.nanoTime();
1287	>	List<Future<String>> futures =
1288	>	p.invokeAll(tasks, timeout, MILLISECONDS);
1289	>	assertEquals(tasks.size(), futures.size());
1290	>	assertTrue(millisElapsedSince(startTime) >= timeout);
1291	>	for (Future future : futures)
1292	>	assertTrue(future.isDone());
1293	>	assertTrue(futures.get(1).isCancelled());
1294	>	try {
1295	>	assertEquals("0", futures.get(0).get());
1296	>	assertEquals("2", futures.get(2).get());
1297	>	break;
1298	>	} catch (CancellationException retryWithLongerTimeout) {
1299	>	timeout *= 2;
1300	>	if (timeout >= LONG_DELAY_MS / 2)
1301	>	fail("expected exactly one task to be cancelled");
1302	>	}
1303	>	}
1304	>	}
1305	>	}
1306	>
1307	>	/**
1308	>	* A fixed delay task with overflowing period should not prevent a
1309	>	* one-shot task from executing.
1310	>	* https://bugs.openjdk.java.net/browse/JDK-8051859
1311	>	*/
1312	>	@SuppressWarnings("FutureReturnValueIgnored")
1313	>	public void testScheduleWithFixedDelay_overflow() throws Exception {
1314	>	final CountDownLatch delayedDone = new CountDownLatch(1);
1315	>	final CountDownLatch immediateDone = new CountDownLatch(1);
1316	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
1317	>	try (PoolCleaner cleaner = cleaner(p)) {
1318	>	final Runnable delayed = () -> {
1319	>	delayedDone.countDown();
1320	>	p.submit(() -> immediateDone.countDown());
1321	>	};
1322	>	p.scheduleWithFixedDelay(delayed, 0L, Long.MAX_VALUE, SECONDS);
1323	>	await(delayedDone);
1324	>	await(immediateDone);
1325		}
1326		}
1327

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