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

Comparing jsr166/src/test/tck/ScheduledExecutorTest.java (file contents):
Revision 1.40 by jsr166, Sat May 7 19:34:51 2011 UTC vs.
Revision 1.100 by jsr166, Wed Jan 27 01:57:24 2021 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);
45		}
46
23	–
47		/**
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();
33	<	}};
34	<	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));
37	<	} finally {
38	<	joinPool(p);
57	>	await(done);
58		}
59		}
60
42	–
61		/**
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 t0 = System.nanoTime();
67	<	final long timeoutNanos = SHORT_DELAY_MS * 1000L * 1000L;
68	<	final CountDownLatch done = new CountDownLatch(1);
69	<	try {
52	<	Callable task = new CheckedCallable<Boolean>() {
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<Boolean> task = new CheckedCallable<>() {
70		public Boolean realCall() {
71		done.countDown();
72	<	assertTrue(System.nanoTime() - t0 >= timeoutNanos);
72	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
73		return Boolean.TRUE;
74		}};
75	<	Future f = p.schedule(task, SHORT_DELAY_MS, MILLISECONDS);
76	<	assertEquals(Boolean.TRUE, f.get());
77	<	assertTrue(System.nanoTime() - t0 >= timeoutNanos);
78	<	assertTrue(done.await(0L, MILLISECONDS));
62	<	} finally {
63	<	joinPool(p);
75	>	Future<Boolean> f = p.schedule(task, timeoutMillis(), MILLISECONDS);
76	>	assertSame(Boolean.TRUE, f.get());
77	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
78	>	assertEquals(0L, done.getCount());
79		}
80		}
81
#	Line 68 | 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 t0 = System.nanoTime();
88	<	final long timeoutNanos = SHORT_DELAY_MS * 1000L * 1000L;
89	<	final CountDownLatch done = new CountDownLatch(1);
75	<	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();
93	<	assertTrue(System.nanoTime() - t0 >= timeoutNanos);
93	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
94		}};
95	<	Future f = p.schedule(task, SHORT_DELAY_MS, MILLISECONDS);
96	<	assertNull(f.get());
97	<	assertTrue(System.nanoTime() - t0 >= timeoutNanos);
98	<	assertTrue(done.await(0L, MILLISECONDS));
85	<	} finally {
86	<	joinPool(p);
95	>	Future<?> f = p.schedule(task, timeoutMillis(), MILLISECONDS);
96	>	await(done);
97	>	assertNull(f.get(LONG_DELAY_MS, MILLISECONDS));
98	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
99		}
100		}
101
#	Line 91 | 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 t0 = System.nanoTime();
108	<	final long timeoutNanos = SHORT_DELAY_MS * 1000L * 1000L;
109	<	final CountDownLatch done = new CountDownLatch(1);
98	<	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();
113	<	assertTrue(System.nanoTime() - t0 >= timeoutNanos);
113	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
114		}};
115	<	ScheduledFuture f =
116	<	p.scheduleAtFixedRate(task, SHORT_DELAY_MS,
117	<	SHORT_DELAY_MS, MILLISECONDS);
118	<	assertTrue(done.await(SMALL_DELAY_MS, MILLISECONDS));
119	<	assertTrue(System.nanoTime() - t0 >= timeoutNanos);
115	>	ScheduledFuture<?> f =
116	>	p.scheduleAtFixedRate(task, timeoutMillis(),
117	>	LONG_DELAY_MS, MILLISECONDS);
118	>	await(done);
119	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
120		f.cancel(true);
110	–	} finally {
111	–	joinPool(p);
121		}
122		}
123
124		/**
125		* scheduleWithFixedDelay executes runnable after given initial delay
126		*/
127	<	public void testSchedule5() throws InterruptedException {
128	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
129	<	final long t0 = System.nanoTime();
130	<	final long timeoutNanos = SHORT_DELAY_MS * 1000L * 1000L;
131	<	final CountDownLatch done = new CountDownLatch(1);
123	<	try {
127	>	public void testSchedule5() throws Exception {
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();
135	<	assertTrue(System.nanoTime() - t0 >= timeoutNanos);
135	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
136		}};
137	<	ScheduledFuture f =
138	<	p.scheduleWithFixedDelay(task, SHORT_DELAY_MS,
139	<	SHORT_DELAY_MS, MILLISECONDS);
140	<	assertTrue(done.await(SMALL_DELAY_MS, MILLISECONDS));
141	<	assertTrue(System.nanoTime() - t0 >= timeoutNanos);
137	>	ScheduledFuture<?> f =
138	>	p.scheduleWithFixedDelay(task, timeoutMillis(),
139	>	LONG_DELAY_MS, MILLISECONDS);
140	>	await(done);
141	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
142		f.cancel(true);
135	–	} finally {
136	–	joinPool(p);
143		}
144		}
145
#	Line 143 | 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
179	–
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);
188	<	shouldThrow();
189	<	} catch (NullPointerException success) {}
190	<
191	<	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);
216	<	shouldThrow();
217	<	} catch (RejectedExecutionException success) {
218	<	} catch (SecurityException ok) {
219	<	}
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();
231	<	se.schedule(new NoOpCallable(),
232	<	MEDIUM_DELAY_MS, MILLISECONDS);
233	<	shouldThrow();
234	<	} catch (RejectedExecutionException success) {
235	<	} catch (SecurityException ok) {
236	<	}
237	<	joinPool(se);
238	<	}
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
242	<	*/
243	<	public void testSchedule3_RejectedExecutionException() throws InterruptedException {
244	<	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
245	<	try {
246	<	se.shutdown();
247	<	se.schedule(new NoOpCallable(),
248	<	MEDIUM_DELAY_MS, MILLISECONDS);
249	<	shouldThrow();
250	<	} catch (RejectedExecutionException success) {
251	<	} catch (SecurityException ok) {
252	<	}
253	<	joinPool(se);
254	<	}
282	>	done.countDown();   // release blocking tasks
283	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
284
285	<	/**
257	<	* scheduleAtFixedRate throws RejectedExecutionException if shutdown
258	<	*/
259	<	public void testScheduleAtFixedRate1_RejectedExecutionException() throws InterruptedException {
260	<	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
261	<	try {
262	<	se.shutdown();
263	<	se.scheduleAtFixedRate(new NoOpRunnable(),
264	<	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS);
265	<	shouldThrow();
266	<	} catch (RejectedExecutionException success) {
267	<	} catch (SecurityException ok) {
268	<	}
269	<	joinPool(se);
270	<	}
271	<
272	<	/**
273	<	* scheduleWithFixedDelay throws RejectedExecutionException if shutdown
274	<	*/
275	<	public void testScheduleWithFixedDelay1_RejectedExecutionException() throws InterruptedException {
276	<	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
277	<	try {
278	<	se.shutdown();
279	<	se.scheduleWithFixedDelay(new NoOpRunnable(),
280	<	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS);
281	<	shouldThrow();
282	<	} catch (RejectedExecutionException success) {
283	<	} catch (SecurityException ok) {
285	>	assertTaskSubmissionsAreRejected(p);
286		}
287	<	joinPool(se);
287	>	assertEquals(p.getCorePoolSize(), p.getCompletedTaskCount());
288		}
289
290		/**
#	Line 290 | Line 292 | public class ScheduledExecutorTest exten
292		* thread becomes active
293		*/
294		public void testGetActiveCount() throws InterruptedException {
293	–	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(2);
294	–	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());
306	–	} finally {
307	–	done.countDown();
308	–	joinPool(p);
308		}
309		}
310
#	Line 315 | 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();
333	<	delay(SHORT_DELAY_MS);
334	<	assertEquals(1, p.getCompletedTaskCount());
335	<	} finally {
336	<	joinPool(p);
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	>	}
339		}
340		}
341
#	Line 343 | 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 356 | 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));
369	<	assertEquals(THREADS, p.getLargestPoolSize());
370	<	} finally {
371	<	done.countDown();
372	<	joinPool(p);
370	>	await(threadsStarted);
371		assertEquals(THREADS, p.getLargestPoolSize());
372		}
373	+	assertEquals(THREADS, p.getLargestPoolSize());
374		}
375
376		/**
#	Line 382 | 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());
395	–	} finally {
396	–	done.countDown();
397	–	joinPool(p);
394		}
395		}
396
#	Line 403 | Line 399 | public class ScheduledExecutorTest exten
399		* submitted
400		*/
401		public void testGetTaskCount() throws InterruptedException {
402	<	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
407	<	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 {
421	<	done.countDown();
422	<	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 {
457	<	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	<	* isShutDown is false before shutdown, true after
471	>	* The default rejected execution handler is AbortPolicy.
472		*/
473	<	public void testIsShutdown() {
474	<
475	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
476	<	try {
477	<	assertFalse(p.isShutdown());
469	<	}
470	<	finally {
471	<	try { p.shutdown(); } catch (SecurityException ok) { return; }
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		}
473	–	assertTrue(p.isShutdown());
479		}
480
481	+	/**
482	+	* isShutdown is false before shutdown, true after
483	+	*/
484	+	public void testIsShutdown() {
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	+	}
493	+	}
494
495		/**
496		* isTerminated is false before termination, true after
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();
495	–	} finally {
513		try { p.shutdown(); } catch (SecurityException ok) { return; }
514	+	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
515	+	assertTrue(p.isTerminated());
516		}
498	–	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
499	–	assertTrue(p.isTerminated());
517		}
518
519		/**
#	Line 506 | 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();
520	–	} 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		}
523	–	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
524	–	assertTrue(p.isTerminated());
525	–	assertFalse(p.isTerminating());
542		}
543
544		/**
545		* getQueue returns the work queue, which contains queued tasks
546		*/
547		public void testGetQueue() throws InterruptedException {
532	–	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
533	–	final CountDownLatch threadStarted = new CountDownLatch(1);
548		final CountDownLatch done = new CountDownLatch(1);
549	<	try {
550	<	ScheduledFuture[] tasks = new ScheduledFuture[5];
549	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
550	>	try (PoolCleaner cleaner = cleaner(p, done)) {
551	>	final CountDownLatch threadStarted = new CountDownLatch(1);
552	>	@SuppressWarnings("unchecked")
553	>	ScheduledFuture<?>[] tasks = (ScheduledFuture<?>[])new ScheduledFuture[5];
554		for (int i = 0; i < tasks.length; i++) {
555		Runnable r = new CheckedRunnable() {
556		public void realRun() throws InterruptedException {
557		threadStarted.countDown();
558	<	done.await();
558	>	await(done);
559		}};
560		tasks[i] = p.schedule(r, 1, MILLISECONDS);
561		}
562	<	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
562	>	await(threadStarted);
563		BlockingQueue<Runnable> q = p.getQueue();
564		assertTrue(q.contains(tasks[tasks.length - 1]));
565		assertFalse(q.contains(tasks[0]));
549	–	} finally {
550	–	done.countDown();
551	–	joinPool(p);
566		}
567		}
568
#	Line 556 | Line 570 | public class ScheduledExecutorTest exten
570		* remove(task) removes queued task, and fails to remove active task
571		*/
572		public void testRemove() throws InterruptedException {
559	–	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
560	–	ScheduledFuture[] tasks = new ScheduledFuture[5];
561	–	final CountDownLatch threadStarted = new CountDownLatch(1);
573		final CountDownLatch done = new CountDownLatch(1);
574	<	try {
574	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
575	>	try (PoolCleaner cleaner = cleaner(p, done)) {
576	>	@SuppressWarnings("unchecked")
577	>	ScheduledFuture<?>[] tasks = (ScheduledFuture<?>[])new ScheduledFuture[5];
578	>	final CountDownLatch threadStarted = new CountDownLatch(1);
579		for (int i = 0; i < tasks.length; i++) {
580		Runnable r = new CheckedRunnable() {
581		public void realRun() throws InterruptedException {
582		threadStarted.countDown();
583	<	done.await();
583	>	await(done);
584		}};
585		tasks[i] = p.schedule(r, 1, MILLISECONDS);
586		}
587	<	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
587	>	await(threadStarted);
588		BlockingQueue<Runnable> q = p.getQueue();
589		assertFalse(p.remove((Runnable)tasks[0]));
590		assertTrue(q.contains((Runnable)tasks[4]));
#	Line 580 | Line 595 | public class ScheduledExecutorTest exten
595		assertTrue(q.contains((Runnable)tasks[3]));
596		assertTrue(p.remove((Runnable)tasks[3]));
597		assertFalse(q.contains((Runnable)tasks[3]));
583	–	} finally {
584	–	done.countDown();
585	–	joinPool(p);
598		}
599		}
600
#	Line 590 | Line 602 | public class ScheduledExecutorTest exten
602		* purge eventually removes cancelled tasks from the queue
603		*/
604		public void testPurge() throws InterruptedException {
605	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
606	<	ScheduledFuture[] tasks = new ScheduledFuture[5];
607	<	for (int i = 0; i < tasks.length; i++)
608	<	tasks[i] = p.schedule(new SmallPossiblyInterruptedRunnable(),
609	<	LONG_DELAY_MS, MILLISECONDS);
610	<	try {
605	>	@SuppressWarnings("unchecked")
606	>	ScheduledFuture<?>[] tasks = (ScheduledFuture<?>[])new ScheduledFuture[5];
607	>	final Runnable releaser = new Runnable() { public void run() {
608	>	for (ScheduledFuture<?> task : tasks)
609	>	if (task != null) task.cancel(true); }};
610	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
611	>	try (PoolCleaner cleaner = cleaner(p, releaser)) {
612	>	for (int i = 0; i < tasks.length; i++)
613	>	tasks[i] = p.schedule(possiblyInterruptedRunnable(SMALL_DELAY_MS),
614	>	LONG_DELAY_MS, MILLISECONDS);
615		int max = tasks.length;
616		if (tasks[4].cancel(true)) --max;
617		if (tasks[3].cancel(true)) --max;
#	Line 607 | Line 623 | public class ScheduledExecutorTest exten
623		long count = p.getTaskCount();
624		if (count == max)
625		return;
626	<	} while (millisElapsedSince(startTime) < MEDIUM_DELAY_MS);
626	>	} while (millisElapsedSince(startTime) < LONG_DELAY_MS);
627		fail("Purge failed to remove cancelled tasks");
612	–	} finally {
613	–	for (ScheduledFuture task : tasks)
614	–	task.cancel(true);
615	–	joinPool(p);
628		}
629		}
630
631		/**
632	<	* shutDownNow returns a list containing tasks that were not run
632	>	* shutdownNow returns a list containing tasks that were not run,
633	>	* and those tasks are drained from the queue
634		*/
635	<	public void testShutdownNow() {
636	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
637	<	for (int i = 0; i < 5; i++)
638	<	p.schedule(new SmallPossiblyInterruptedRunnable(),
639	<	LONG_DELAY_MS, MILLISECONDS);
635	>	public void testShutdownNow() throws InterruptedException {
636	>	final int poolSize = 2;
637	>	final int count = 5;
638	>	final AtomicInteger ran = new AtomicInteger(0);
639	>	final ScheduledThreadPoolExecutor p =
640	>	new ScheduledThreadPoolExecutor(poolSize);
641	>	final CountDownLatch threadsStarted = new CountDownLatch(poolSize);
642	>	Runnable waiter = new CheckedRunnable() { public void realRun() {
643	>	threadsStarted.countDown();
644	>	try {
645	>	MILLISECONDS.sleep(LONGER_DELAY_MS);
646	>	} catch (InterruptedException success) {}
647	>	ran.getAndIncrement();
648	>	}};
649	>	for (int i = 0; i < count; i++)
650	>	p.execute(waiter);
651	>	await(threadsStarted);
652	>	assertEquals(poolSize, p.getActiveCount());
653	>	assertEquals(0, p.getCompletedTaskCount());
654	>	final List<Runnable> queuedTasks;
655		try {
656	<	List<Runnable> l = p.shutdownNow();
629	<	assertTrue(p.isShutdown());
630	<	assertEquals(5, l.size());
656	>	queuedTasks = p.shutdownNow();
657		} catch (SecurityException ok) {
658	<	// Allowed in case test doesn't have privs
633	<	} finally {
634	<	joinPool(p);
658	>	return; // Allowed in case test doesn't have privs
659		}
660	+	assertTrue(p.isShutdown());
661	+	assertTrue(p.getQueue().isEmpty());
662	+	assertEquals(count - poolSize, queuedTasks.size());
663	+	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
664	+	assertTrue(p.isTerminated());
665	+	assertEquals(poolSize, ran.get());
666	+	assertEquals(poolSize, p.getCompletedTaskCount());
667		}
668
669		/**
670	<	* In default setting, shutdown cancels periodic but not delayed
671	<	* tasks at shutdown
670	>	* shutdownNow returns a list containing tasks that were not run,
671	>	* and those tasks are drained from the queue
672		*/
673	<	public void testShutDown1() throws InterruptedException {
674	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
675	<	assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
676	<	assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
677	<
678	<	ScheduledFuture[] tasks = new ScheduledFuture[5];
679	<	for (int i = 0; i < tasks.length; i++)
680	<	tasks[i] = p.schedule(new NoOpRunnable(),
681	<	SHORT_DELAY_MS, MILLISECONDS);
682	<	try { p.shutdown(); } catch (SecurityException ok) { return; }
683	<	BlockingQueue<Runnable> q = p.getQueue();
684	<	for (ScheduledFuture task : tasks) {
685	<	assertFalse(task.isDone());
686	<	assertFalse(task.isCancelled());
687	<	assertTrue(q.contains(task));
673	>	public void testShutdownNow_delayedTasks() throws InterruptedException {
674	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
675	>	List<ScheduledFuture<?>> tasks = new ArrayList<>();
676	>	for (int i = 0; i < 3; i++) {
677	>	Runnable r = new NoOpRunnable();
678	>	tasks.add(p.schedule(r, 9, SECONDS));
679	>	tasks.add(p.scheduleAtFixedRate(r, 9, 9, SECONDS));
680	>	tasks.add(p.scheduleWithFixedDelay(r, 9, 9, SECONDS));
681	>	}
682	>	if (testImplementationDetails)
683	>	assertEquals(new HashSet<Object>(tasks), new HashSet<Object>(p.getQueue()));
684	>	final List<Runnable> queuedTasks;
685	>	try {
686	>	queuedTasks = p.shutdownNow();
687	>	} catch (SecurityException ok) {
688	>	return; // Allowed in case test doesn't have privs
689		}
690		assertTrue(p.isShutdown());
691	<	assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS));
692	<	assertTrue(p.isTerminated());
693	<	for (ScheduledFuture task : tasks) {
694	<	assertTrue(task.isDone());
691	>	assertTrue(p.getQueue().isEmpty());
692	>	if (testImplementationDetails)
693	>	assertEquals(new HashSet<Object>(tasks), new HashSet<Object>(queuedTasks));
694	>	assertEquals(tasks.size(), queuedTasks.size());
695	>	for (ScheduledFuture<?> task : tasks) {
696	>	assertFalse(task.isDone());
697		assertFalse(task.isCancelled());
698		}
699	+	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
700	+	assertTrue(p.isTerminated());
701		}
702
667	–
703		/**
704	<	* If setExecuteExistingDelayedTasksAfterShutdownPolicy is false,
705	<	* delayed tasks are cancelled at shutdown
706	<	*/
707	<	public void testShutDown2() throws InterruptedException {
708	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
709	<	p.setExecuteExistingDelayedTasksAfterShutdownPolicy(false);
710	<	assertFalse(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
711	<	assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
712	<	ScheduledFuture[] tasks = new ScheduledFuture[5];
713	<	for (int i = 0; i < tasks.length; i++)
714	<	tasks[i] = p.schedule(new NoOpRunnable(),
715	<	SHORT_DELAY_MS, MILLISECONDS);
716	<	BlockingQueue q = p.getQueue();
717	<	assertEquals(tasks.length, q.size());
718	<	try { p.shutdown(); } catch (SecurityException ok) { return; }
719	<	assertTrue(p.isShutdown());
720	<	assertTrue(q.isEmpty());
721	<	assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS));
722	<	assertTrue(p.isTerminated());
723	<	for (ScheduledFuture task : tasks) {
724	<	assertTrue(task.isDone());
725	<	assertTrue(task.isCancelled());
704	>	* By default, periodic tasks are cancelled at shutdown.
705	>	* By default, delayed tasks keep running after shutdown.
706	>	* Check that changing the default values work:
707	>	* - setExecuteExistingDelayedTasksAfterShutdownPolicy
708	>	* - setContinueExistingPeriodicTasksAfterShutdownPolicy
709	>	*/
710	>	@SuppressWarnings("FutureReturnValueIgnored")
711	>	public void testShutdown_cancellation() throws Exception {
712	>	final int poolSize = 4;
713	>	final ScheduledThreadPoolExecutor p
714	>	= new ScheduledThreadPoolExecutor(poolSize);
715	>	final BlockingQueue<Runnable> q = p.getQueue();
716	>	final ThreadLocalRandom rnd = ThreadLocalRandom.current();
717	>	final long delay = rnd.nextInt(2);
718	>	final int rounds = rnd.nextInt(1, 3);
719	>	final boolean effectiveDelayedPolicy;
720	>	final boolean effectivePeriodicPolicy;
721	>	final boolean effectiveRemovePolicy;
722	>
723	>	if (rnd.nextBoolean())
724	>	p.setExecuteExistingDelayedTasksAfterShutdownPolicy(
725	>	effectiveDelayedPolicy = rnd.nextBoolean());
726	>	else
727	>	effectiveDelayedPolicy = true;
728	>	assertEquals(effectiveDelayedPolicy,
729	>	p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
730	>
731	>	if (rnd.nextBoolean())
732	>	p.setContinueExistingPeriodicTasksAfterShutdownPolicy(
733	>	effectivePeriodicPolicy = rnd.nextBoolean());
734	>	else
735	>	effectivePeriodicPolicy = false;
736	>	assertEquals(effectivePeriodicPolicy,
737	>	p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
738	>
739	>	if (rnd.nextBoolean())
740	>	p.setRemoveOnCancelPolicy(
741	>	effectiveRemovePolicy = rnd.nextBoolean());
742	>	else
743	>	effectiveRemovePolicy = false;
744	>	assertEquals(effectiveRemovePolicy,
745	>	p.getRemoveOnCancelPolicy());
746	>
747	>	final boolean periodicTasksContinue = effectivePeriodicPolicy && rnd.nextBoolean();
748	>
749	>	// Strategy: Wedge the pool with one wave of "blocker" tasks,
750	>	// then add a second wave that waits in the queue until unblocked.
751	>	final AtomicInteger ran = new AtomicInteger(0);
752	>	final CountDownLatch poolBlocked = new CountDownLatch(poolSize);
753	>	final CountDownLatch unblock = new CountDownLatch(1);
754	>	final RuntimeException exception = new RuntimeException();
755	>
756	>	class Task implements Runnable {
757	>	public void run() {
758	>	try {
759	>	ran.getAndIncrement();
760	>	poolBlocked.countDown();
761	>	await(unblock);
762	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
763	>	}
764		}
692	–	}
765
766	<	/**
767	<	* If setContinueExistingPeriodicTasksAfterShutdownPolicy is set false,
768	<	* periodic tasks are cancelled at shutdown
769	<	*/
770	<	public void testShutDown3() throws InterruptedException {
771	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
772	<	assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
773	<	assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
774	<	p.setContinueExistingPeriodicTasksAfterShutdownPolicy(false);
775	<	assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
776	<	assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
777	<	ScheduledFuture task =
778	<	p.scheduleAtFixedRate(new NoOpRunnable(), 5, 5, MILLISECONDS);
766	>	class PeriodicTask extends Task {
767	>	PeriodicTask(int rounds) { this.rounds = rounds; }
768	>	int rounds;
769	>	public void run() {
770	>	if (--rounds == 0) super.run();
771	>	// throw exception to surely terminate this periodic task,
772	>	// but in a separate execution and in a detectable way.
773	>	if (rounds == -1) throw exception;
774	>	}
775	>	}
776	>
777	>	Runnable task = new Task();
778	>
779	>	List<Future<?>> immediates = new ArrayList<>();
780	>	List<Future<?>> delayeds   = new ArrayList<>();
781	>	List<Future<?>> periodics  = new ArrayList<>();
782	>
783	>	immediates.add(p.submit(task));
784	>	delayeds.add(p.schedule(task, delay, MILLISECONDS));
785	>	periodics.add(p.scheduleAtFixedRate(
786	>	new PeriodicTask(rounds), delay, 1, MILLISECONDS));
787	>	periodics.add(p.scheduleWithFixedDelay(
788	>	new PeriodicTask(rounds), delay, 1, MILLISECONDS));
789	>
790	>	await(poolBlocked);
791	>
792	>	assertEquals(poolSize, ran.get());
793	>	assertEquals(poolSize, p.getActiveCount());
794	>	assertTrue(q.isEmpty());
795	>
796	>	// Add second wave of tasks.
797	>	immediates.add(p.submit(task));
798	>	delayeds.add(p.schedule(task, effectiveDelayedPolicy ? delay : LONG_DELAY_MS, MILLISECONDS));
799	>	periodics.add(p.scheduleAtFixedRate(
800	>	new PeriodicTask(rounds), delay, 1, MILLISECONDS));
801	>	periodics.add(p.scheduleWithFixedDelay(
802	>	new PeriodicTask(rounds), delay, 1, MILLISECONDS));
803	>
804	>	assertEquals(poolSize, q.size());
805	>	assertEquals(poolSize, ran.get());
806	>
807	>	immediates.forEach(
808	>	f -> assertTrue(((ScheduledFuture)f).getDelay(NANOSECONDS) <= 0L));
809	>
810	>	Stream.of(immediates, delayeds, periodics).flatMap(Collection::stream)
811	>	.forEach(f -> assertFalse(f.isDone()));
812	>
813		try { p.shutdown(); } catch (SecurityException ok) { return; }
814		assertTrue(p.isShutdown());
815	<	BlockingQueue q = p.getQueue();
816	<	assertTrue(p.getQueue().isEmpty());
711	<	assertTrue(task.isDone());
712	<	assertTrue(task.isCancelled());
713	<	assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS));
714	<	assertTrue(p.isTerminated());
715	<	}
815	>	assertTrue(p.isTerminating());
816	>	assertFalse(p.isTerminated());
817
818	<	/**
819	<	* if setContinueExistingPeriodicTasksAfterShutdownPolicy is true,
820	<	* periodic tasks are not cancelled at shutdown
821	<	*/
822	<	public void testShutDown4() throws InterruptedException {
823	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
824	<	final CountDownLatch counter = new CountDownLatch(2);
825	<	try {
826	<	p.setContinueExistingPeriodicTasksAfterShutdownPolicy(true);
827	<	assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
828	<	assertTrue(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
829	<	final Runnable r = new CheckedRunnable() {
830	<	public void realRun() {
831	<	counter.countDown();
832	<	}};
833	<	ScheduledFuture task =
834	<	p.scheduleAtFixedRate(r, 1, 1, MILLISECONDS);
835	<	assertFalse(task.isDone());
836	<	assertFalse(task.isCancelled());
837	<	try { p.shutdown(); } catch (SecurityException ok) { return; }
838	<	assertFalse(task.isCancelled());
839	<	assertFalse(p.isTerminated());
840	<	assertTrue(p.isShutdown());
841	<	assertTrue(counter.await(SMALL_DELAY_MS, MILLISECONDS));
842	<	assertFalse(task.isCancelled());
843	<	assertTrue(task.cancel(false));
844	<	assertTrue(task.isDone());
845	<	assertTrue(task.isCancelled());
846	<	assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS));
847	<	assertTrue(p.isTerminated());
848	<	}
849	<	finally {
850	<	joinPool(p);
818	>	if (rnd.nextBoolean())
819	>	assertThrows(
820	>	RejectedExecutionException.class,
821	>	() -> p.submit(task),
822	>	() -> p.schedule(task, 1, SECONDS),
823	>	() -> p.scheduleAtFixedRate(
824	>	new PeriodicTask(1), 1, 1, SECONDS),
825	>	() -> p.scheduleWithFixedDelay(
826	>	new PeriodicTask(2), 1, 1, SECONDS));
827	>
828	>	assertTrue(q.contains(immediates.get(1)));
829	>	assertTrue(!effectiveDelayedPolicy
830	>	^ q.contains(delayeds.get(1)));
831	>	assertTrue(!effectivePeriodicPolicy
832	>	^ q.containsAll(periodics.subList(2, 4)));
833	>
834	>	immediates.forEach(f -> assertFalse(f.isDone()));
835	>
836	>	assertFalse(delayeds.get(0).isDone());
837	>	if (effectiveDelayedPolicy)
838	>	assertFalse(delayeds.get(1).isDone());
839	>	else
840	>	assertTrue(delayeds.get(1).isCancelled());
841	>
842	>	if (effectivePeriodicPolicy)
843	>	periodics.forEach(
844	>	f -> {
845	>	assertFalse(f.isDone());
846	>	if (!periodicTasksContinue) {
847	>	assertTrue(f.cancel(false));
848	>	assertTrue(f.isCancelled());
849	>	}
850	>	});
851	>	else {
852	>	periodics.subList(0, 2).forEach(f -> assertFalse(f.isDone()));
853	>	periodics.subList(2, 4).forEach(f -> assertTrue(f.isCancelled()));
854		}
855	+
856	+	unblock.countDown();    // Release all pool threads
857	+
858	+	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
859	+	assertFalse(p.isTerminating());
860	+	assertTrue(p.isTerminated());
861	+
862	+	assertTrue(q.isEmpty());
863	+
864	+	Stream.of(immediates, delayeds, periodics).flatMap(Collection::stream)
865	+	.forEach(f -> assertTrue(f.isDone()));
866	+
867	+	for (Future<?> f : immediates) assertNull(f.get());
868	+
869	+	assertNull(delayeds.get(0).get());
870	+	if (effectiveDelayedPolicy)
871	+	assertNull(delayeds.get(1).get());
872	+	else
873	+	assertTrue(delayeds.get(1).isCancelled());
874	+
875	+	if (periodicTasksContinue)
876	+	periodics.forEach(
877	+	f -> {
878	+	try { f.get(); }
879	+	catch (ExecutionException success) {
880	+	assertSame(exception, success.getCause());
881	+	}
882	+	catch (Throwable fail) { threadUnexpectedException(fail); }
883	+	});
884	+	else
885	+	periodics.forEach(f -> assertTrue(f.isCancelled()));
886	+
887	+	assertEquals(poolSize + 1
888	+	+ (effectiveDelayedPolicy ? 1 : 0)
889	+	+ (periodicTasksContinue ? 2 : 0),
890	+	ran.get());
891		}
892
893		/**
894		* completed submit of callable returns result
895		*/
896		public void testSubmitCallable() throws Exception {
897	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
898	<	try {
897	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
898	>	try (PoolCleaner cleaner = cleaner(e)) {
899		Future<String> future = e.submit(new StringTask());
900		String result = future.get();
901		assertSame(TEST_STRING, result);
762	–	} finally {
763	–	joinPool(e);
902		}
903		}
904
#	Line 768 | Line 906 | public class ScheduledExecutorTest exten
906		* completed submit of runnable returns successfully
907		*/
908		public void testSubmitRunnable() throws Exception {
909	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
910	<	try {
909	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
910	>	try (PoolCleaner cleaner = cleaner(e)) {
911		Future<?> future = e.submit(new NoOpRunnable());
912		future.get();
913		assertTrue(future.isDone());
776	–	} finally {
777	–	joinPool(e);
914		}
915		}
916
#	Line 782 | Line 918 | public class ScheduledExecutorTest exten
918		* completed submit of (runnable, result) returns result
919		*/
920		public void testSubmitRunnable2() throws Exception {
921	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
922	<	try {
921	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
922	>	try (PoolCleaner cleaner = cleaner(e)) {
923		Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING);
924		String result = future.get();
925		assertSame(TEST_STRING, result);
790	–	} finally {
791	–	joinPool(e);
926		}
927		}
928
929		/**
930	<	* invokeAny(null) throws NPE
930	>	* invokeAny(null) throws NullPointerException
931		*/
932		public void testInvokeAny1() throws Exception {
933	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
934	<	try {
935	<	e.invokeAny(null);
936	<	shouldThrow();
937	<	} catch (NullPointerException success) {
938	<	} finally {
805	<	joinPool(e);
933	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
934	>	try (PoolCleaner cleaner = cleaner(e)) {
935	>	try {
936	>	e.invokeAny(null);
937	>	shouldThrow();
938	>	} catch (NullPointerException success) {}
939		}
940		}
941
942		/**
943	<	* invokeAny(empty collection) throws IAE
943	>	* invokeAny(empty collection) throws IllegalArgumentException
944		*/
945		public void testInvokeAny2() throws Exception {
946	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
947	<	try {
948	<	e.invokeAny(new ArrayList<Callable<String>>());
949	<	shouldThrow();
950	<	} catch (IllegalArgumentException success) {
951	<	} finally {
819	<	joinPool(e);
946	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
947	>	try (PoolCleaner cleaner = cleaner(e)) {
948	>	try {
949	>	e.invokeAny(new ArrayList<Callable<String>>());
950	>	shouldThrow();
951	>	} catch (IllegalArgumentException success) {}
952		}
953		}
954
955		/**
956	<	* invokeAny(c) throws NPE if c has null elements
956	>	* invokeAny(c) throws NullPointerException if c has null elements
957		*/
958		public void testInvokeAny3() throws Exception {
959		CountDownLatch latch = new CountDownLatch(1);
960	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
961	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
962	<	l.add(latchAwaitingStringTask(latch));
963	<	l.add(null);
964	<	try {
965	<	e.invokeAny(l);
966	<	shouldThrow();
967	<	} catch (NullPointerException success) {
968	<	} finally {
960	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
961	>	try (PoolCleaner cleaner = cleaner(e)) {
962	>	List<Callable<String>> l = new ArrayList<>();
963	>	l.add(latchAwaitingStringTask(latch));
964	>	l.add(null);
965	>	try {
966	>	e.invokeAny(l);
967	>	shouldThrow();
968	>	} catch (NullPointerException success) {}
969		latch.countDown();
838	–	joinPool(e);
970		}
971		}
972
#	Line 843 | Line 974 | public class ScheduledExecutorTest exten
974		* invokeAny(c) throws ExecutionException if no task completes
975		*/
976		public void testInvokeAny4() throws Exception {
977	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
978	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
979	<	l.add(new NPETask());
980	<	try {
981	<	e.invokeAny(l);
982	<	shouldThrow();
983	<	} catch (ExecutionException success) {
984	<	assertTrue(success.getCause() instanceof NullPointerException);
985	<	} finally {
986	<	joinPool(e);
977	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
978	>	try (PoolCleaner cleaner = cleaner(e)) {
979	>	List<Callable<String>> l = new ArrayList<>();
980	>	l.add(new NPETask());
981	>	try {
982	>	e.invokeAny(l);
983	>	shouldThrow();
984	>	} catch (ExecutionException success) {
985	>	assertTrue(success.getCause() instanceof NullPointerException);
986	>	}
987		}
988		}
989
#	Line 860 | Line 991 | public class ScheduledExecutorTest exten
991		* invokeAny(c) returns result of some task
992		*/
993		public void testInvokeAny5() throws Exception {
994	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
995	<	try {
996	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
994	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
995	>	try (PoolCleaner cleaner = cleaner(e)) {
996	>	List<Callable<String>> l = new ArrayList<>();
997		l.add(new StringTask());
998		l.add(new StringTask());
999		String result = e.invokeAny(l);
1000		assertSame(TEST_STRING, result);
870	–	} finally {
871	–	joinPool(e);
1001		}
1002		}
1003
#	Line 876 | Line 1005 | public class ScheduledExecutorTest exten
1005		* invokeAll(null) throws NPE
1006		*/
1007		public void testInvokeAll1() throws Exception {
1008	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1009	<	try {
1010	<	e.invokeAll(null);
1011	<	shouldThrow();
1012	<	} catch (NullPointerException success) {
1013	<	} finally {
885	<	joinPool(e);
1008	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1009	>	try (PoolCleaner cleaner = cleaner(e)) {
1010	>	try {
1011	>	e.invokeAll(null);
1012	>	shouldThrow();
1013	>	} catch (NullPointerException success) {}
1014		}
1015		}
1016
1017		/**
1018	<	* invokeAll(empty collection) returns empty collection
1018	>	* invokeAll(empty collection) returns empty list
1019		*/
1020		public void testInvokeAll2() throws Exception {
1021	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1022	<	try {
1023	<	List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>());
1021	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1022	>	final Collection<Callable<String>> emptyCollection
1023	>	= Collections.emptyList();
1024	>	try (PoolCleaner cleaner = cleaner(e)) {
1025	>	List<Future<String>> r = e.invokeAll(emptyCollection);
1026		assertTrue(r.isEmpty());
897	–	} finally {
898	–	joinPool(e);
1027		}
1028		}
1029
#	Line 903 | Line 1031 | public class ScheduledExecutorTest exten
1031		* invokeAll(c) throws NPE if c has null elements
1032		*/
1033		public void testInvokeAll3() throws Exception {
1034	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1035	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1036	<	l.add(new StringTask());
1037	<	l.add(null);
1038	<	try {
1039	<	e.invokeAll(l);
1040	<	shouldThrow();
1041	<	} catch (NullPointerException success) {
1042	<	} finally {
915	<	joinPool(e);
1034	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1035	>	try (PoolCleaner cleaner = cleaner(e)) {
1036	>	List<Callable<String>> l = new ArrayList<>();
1037	>	l.add(new StringTask());
1038	>	l.add(null);
1039	>	try {
1040	>	e.invokeAll(l);
1041	>	shouldThrow();
1042	>	} catch (NullPointerException success) {}
1043		}
1044		}
1045
#	Line 920 | Line 1047 | public class ScheduledExecutorTest exten
1047		* get of invokeAll(c) throws exception on failed task
1048		*/
1049		public void testInvokeAll4() throws Exception {
1050	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1051	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1052	<	l.add(new NPETask());
1053	<	List<Future<String>> futures = e.invokeAll(l);
1054	<	assertEquals(1, futures.size());
1055	<	try {
1056	<	futures.get(0).get();
1057	<	shouldThrow();
1058	<	} catch (ExecutionException success) {
1059	<	assertTrue(success.getCause() instanceof NullPointerException);
1060	<	} finally {
1061	<	joinPool(e);
1050	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1051	>	try (PoolCleaner cleaner = cleaner(e)) {
1052	>	List<Callable<String>> l = new ArrayList<>();
1053	>	l.add(new NPETask());
1054	>	List<Future<String>> futures = e.invokeAll(l);
1055	>	assertEquals(1, futures.size());
1056	>	try {
1057	>	futures.get(0).get();
1058	>	shouldThrow();
1059	>	} catch (ExecutionException success) {
1060	>	assertTrue(success.getCause() instanceof NullPointerException);
1061	>	}
1062		}
1063		}
1064
#	Line 939 | Line 1066 | public class ScheduledExecutorTest exten
1066		* invokeAll(c) returns results of all completed tasks
1067		*/
1068		public void testInvokeAll5() throws Exception {
1069	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1070	<	try {
1071	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1069	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1070	>	try (PoolCleaner cleaner = cleaner(e)) {
1071	>	List<Callable<String>> l = new ArrayList<>();
1072		l.add(new StringTask());
1073		l.add(new StringTask());
1074		List<Future<String>> futures = e.invokeAll(l);
1075		assertEquals(2, futures.size());
1076		for (Future<String> future : futures)
1077		assertSame(TEST_STRING, future.get());
951	–	} finally {
952	–	joinPool(e);
1078		}
1079		}
1080
#	Line 957 | Line 1082 | public class ScheduledExecutorTest exten
1082		* timed invokeAny(null) throws NPE
1083		*/
1084		public void testTimedInvokeAny1() throws Exception {
1085	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1086	<	try {
1087	<	e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS);
1088	<	shouldThrow();
1089	<	} catch (NullPointerException success) {
1090	<	} finally {
966	<	joinPool(e);
1085	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1086	>	try (PoolCleaner cleaner = cleaner(e)) {
1087	>	try {
1088	>	e.invokeAny(null, randomTimeout(), randomTimeUnit());
1089	>	shouldThrow();
1090	>	} catch (NullPointerException success) {}
1091		}
1092		}
1093
1094		/**
1095	<	* timed invokeAny(,,null) throws NPE
1095	>	* timed invokeAny(,,null) throws NullPointerException
1096		*/
1097		public void testTimedInvokeAnyNullTimeUnit() throws Exception {
1098	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1099	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1100	<	l.add(new StringTask());
1101	<	try {
1102	<	e.invokeAny(l, MEDIUM_DELAY_MS, null);
1103	<	shouldThrow();
1104	<	} catch (NullPointerException success) {
1105	<	} finally {
982	<	joinPool(e);
1098	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1099	>	try (PoolCleaner cleaner = cleaner(e)) {
1100	>	List<Callable<String>> l = new ArrayList<>();
1101	>	l.add(new StringTask());
1102	>	try {
1103	>	e.invokeAny(l, randomTimeout(), null);
1104	>	shouldThrow();
1105	>	} catch (NullPointerException success) {}
1106		}
1107		}
1108
1109		/**
1110	<	* timed invokeAny(empty collection) throws IAE
1110	>	* timed invokeAny(empty collection) throws IllegalArgumentException
1111		*/
1112		public void testTimedInvokeAny2() throws Exception {
1113	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1114	<	try {
1115	<	e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
1116	<	shouldThrow();
1117	<	} catch (IllegalArgumentException success) {
1118	<	} finally {
1119	<	joinPool(e);
1113	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1114	>	final Collection<Callable<String>> emptyCollection
1115	>	= Collections.emptyList();
1116	>	try (PoolCleaner cleaner = cleaner(e)) {
1117	>	try {
1118	>	e.invokeAny(emptyCollection, randomTimeout(), randomTimeUnit());
1119	>	shouldThrow();
1120	>	} catch (IllegalArgumentException success) {}
1121		}
1122		}
1123
#	Line 1002 | Line 1126 | public class ScheduledExecutorTest exten
1126		*/
1127		public void testTimedInvokeAny3() throws Exception {
1128		CountDownLatch latch = new CountDownLatch(1);
1129	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1130	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1131	<	l.add(latchAwaitingStringTask(latch));
1132	<	l.add(null);
1133	<	try {
1134	<	e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1135	<	shouldThrow();
1136	<	} catch (NullPointerException success) {
1137	<	} finally {
1129	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1130	>	try (PoolCleaner cleaner = cleaner(e)) {
1131	>	List<Callable<String>> l = new ArrayList<>();
1132	>	l.add(latchAwaitingStringTask(latch));
1133	>	l.add(null);
1134	>	try {
1135	>	e.invokeAny(l, randomTimeout(), randomTimeUnit());
1136	>	shouldThrow();
1137	>	} catch (NullPointerException success) {}
1138		latch.countDown();
1015	–	joinPool(e);
1139		}
1140		}
1141
#	Line 1020 | Line 1143 | public class ScheduledExecutorTest exten
1143		* timed invokeAny(c) throws ExecutionException if no task completes
1144		*/
1145		public void testTimedInvokeAny4() throws Exception {
1146	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1147	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1148	<	l.add(new NPETask());
1149	<	try {
1150	<	e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1151	<	shouldThrow();
1152	<	} catch (ExecutionException success) {
1153	<	assertTrue(success.getCause() instanceof NullPointerException);
1154	<	} finally {
1155	<	joinPool(e);
1146	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1147	>	try (PoolCleaner cleaner = cleaner(e)) {
1148	>	long startTime = System.nanoTime();
1149	>	List<Callable<String>> l = new ArrayList<>();
1150	>	l.add(new NPETask());
1151	>	try {
1152	>	e.invokeAny(l, LONG_DELAY_MS, MILLISECONDS);
1153	>	shouldThrow();
1154	>	} catch (ExecutionException success) {
1155	>	assertTrue(success.getCause() instanceof NullPointerException);
1156	>	}
1157	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1158		}
1159		}
1160
#	Line 1037 | Line 1162 | public class ScheduledExecutorTest exten
1162		* timed invokeAny(c) returns result of some task
1163		*/
1164		public void testTimedInvokeAny5() throws Exception {
1165	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1166	<	try {
1167	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1165	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1166	>	try (PoolCleaner cleaner = cleaner(e)) {
1167	>	long startTime = System.nanoTime();
1168	>	List<Callable<String>> l = new ArrayList<>();
1169		l.add(new StringTask());
1170		l.add(new StringTask());
1171	<	String result = e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1171	>	String result = e.invokeAny(l, LONG_DELAY_MS, MILLISECONDS);
1172		assertSame(TEST_STRING, result);
1173	<	} finally {
1048	<	joinPool(e);
1173	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1174		}
1175		}
1176
#	Line 1053 | Line 1178 | public class ScheduledExecutorTest exten
1178		* timed invokeAll(null) throws NPE
1179		*/
1180		public void testTimedInvokeAll1() throws Exception {
1181	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1182	<	try {
1183	<	e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS);
1184	<	shouldThrow();
1185	<	} catch (NullPointerException success) {
1186	<	} finally {
1062	<	joinPool(e);
1181	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1182	>	try (PoolCleaner cleaner = cleaner(e)) {
1183	>	try {
1184	>	e.invokeAll(null, randomTimeout(), randomTimeUnit());
1185	>	shouldThrow();
1186	>	} catch (NullPointerException success) {}
1187		}
1188		}
1189
#	Line 1067 | Line 1191 | public class ScheduledExecutorTest exten
1191		* timed invokeAll(,,null) throws NPE
1192		*/
1193		public void testTimedInvokeAllNullTimeUnit() throws Exception {
1194	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1195	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1196	<	l.add(new StringTask());
1197	<	try {
1198	<	e.invokeAll(l, MEDIUM_DELAY_MS, null);
1199	<	shouldThrow();
1200	<	} catch (NullPointerException success) {
1201	<	} finally {
1078	<	joinPool(e);
1194	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1195	>	try (PoolCleaner cleaner = cleaner(e)) {
1196	>	List<Callable<String>> l = new ArrayList<>();
1197	>	l.add(new StringTask());
1198	>	try {
1199	>	e.invokeAll(l, randomTimeout(), null);
1200	>	shouldThrow();
1201	>	} catch (NullPointerException success) {}
1202		}
1203		}
1204
1205		/**
1206	<	* timed invokeAll(empty collection) returns empty collection
1206	>	* timed invokeAll(empty collection) returns empty list
1207		*/
1208		public void testTimedInvokeAll2() throws Exception {
1209	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1210	<	try {
1211	<	List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
1209	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1210	>	final Collection<Callable<String>> emptyCollection
1211	>	= Collections.emptyList();
1212	>	try (PoolCleaner cleaner = cleaner(e)) {
1213	>	List<Future<String>> r =
1214	>	e.invokeAll(emptyCollection, randomTimeout(), randomTimeUnit());
1215		assertTrue(r.isEmpty());
1090	–	} finally {
1091	–	joinPool(e);
1216		}
1217		}
1218
#	Line 1096 | Line 1220 | public class ScheduledExecutorTest exten
1220		* timed invokeAll(c) throws NPE if c has null elements
1221		*/
1222		public void testTimedInvokeAll3() throws Exception {
1223	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1224	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1225	<	l.add(new StringTask());
1226	<	l.add(null);
1227	<	try {
1228	<	e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1229	<	shouldThrow();
1230	<	} catch (NullPointerException success) {
1231	<	} finally {
1108	<	joinPool(e);
1223	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1224	>	try (PoolCleaner cleaner = cleaner(e)) {
1225	>	List<Callable<String>> l = new ArrayList<>();
1226	>	l.add(new StringTask());
1227	>	l.add(null);
1228	>	try {
1229	>	e.invokeAll(l, randomTimeout(), randomTimeUnit());
1230	>	shouldThrow();
1231	>	} catch (NullPointerException success) {}
1232		}
1233		}
1234
#	Line 1113 | Line 1236 | public class ScheduledExecutorTest exten
1236		* get of element of invokeAll(c) throws exception on failed task
1237		*/
1238		public void testTimedInvokeAll4() throws Exception {
1239	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1240	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1241	<	l.add(new NPETask());
1242	<	List<Future<String>> futures =
1243	<	e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1244	<	assertEquals(1, futures.size());
1245	<	try {
1246	<	futures.get(0).get();
1247	<	shouldThrow();
1248	<	} catch (ExecutionException success) {
1249	<	assertTrue(success.getCause() instanceof NullPointerException);
1250	<	} finally {
1251	<	joinPool(e);
1239	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1240	>	try (PoolCleaner cleaner = cleaner(e)) {
1241	>	List<Callable<String>> l = new ArrayList<>();
1242	>	l.add(new NPETask());
1243	>	List<Future<String>> futures =
1244	>	e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS);
1245	>	assertEquals(1, futures.size());
1246	>	try {
1247	>	futures.get(0).get();
1248	>	shouldThrow();
1249	>	} catch (ExecutionException success) {
1250	>	assertTrue(success.getCause() instanceof NullPointerException);
1251	>	}
1252		}
1253		}
1254
#	Line 1133 | Line 1256 | public class ScheduledExecutorTest exten
1256		* timed invokeAll(c) returns results of all completed tasks
1257		*/
1258		public void testTimedInvokeAll5() throws Exception {
1259	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1260	<	try {
1261	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1259	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1260	>	try (PoolCleaner cleaner = cleaner(e)) {
1261	>	List<Callable<String>> l = new ArrayList<>();
1262		l.add(new StringTask());
1263		l.add(new StringTask());
1264		List<Future<String>> futures =
1265	<	e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1265	>	e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS);
1266		assertEquals(2, futures.size());
1267		for (Future<String> future : futures)
1268		assertSame(TEST_STRING, future.get());
1146	–	} finally {
1147	–	joinPool(e);
1269		}
1270		}
1271
#	Line 1152 | Line 1273 | public class ScheduledExecutorTest exten
1273		* timed invokeAll(c) cancels tasks not completed by timeout
1274		*/
1275		public void testTimedInvokeAll6() throws Exception {
1276	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1277	<	try {
1278	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1279	<	l.add(new StringTask());
1280	<	l.add(Executors.callable(new MediumPossiblyInterruptedRunnable(), TEST_STRING));
1281	<	l.add(new StringTask());
1282	<	List<Future<String>> futures =
1283	<	e.invokeAll(l, SHORT_DELAY_MS, MILLISECONDS);
1284	<	assertEquals(3, futures.size());
1285	<	Iterator<Future<String>> it = futures.iterator();
1286	<	Future<String> f1 = it.next();
1287	<	Future<String> f2 = it.next();
1288	<	Future<String> f3 = it.next();
1289	<	assertTrue(f1.isDone());
1290	<	assertTrue(f2.isDone());
1291	<	assertTrue(f3.isDone());
1292	<	assertFalse(f1.isCancelled());
1293	<	assertTrue(f2.isCancelled());
1294	<	} finally {
1295	<	joinPool(e);
1276	>	for (long timeout = timeoutMillis();;) {
1277	>	final CountDownLatch done = new CountDownLatch(1);
1278	>	final Callable<String> waiter = new CheckedCallable<>() {
1279	>	public String realCall() {
1280	>	try { done.await(LONG_DELAY_MS, MILLISECONDS); }
1281	>	catch (InterruptedException ok) {}
1282	>	return "1"; }};
1283	>	final ExecutorService p = new ScheduledThreadPoolExecutor(2);
1284	>	try (PoolCleaner cleaner = cleaner(p, done)) {
1285	>	List<Callable<String>> tasks = new ArrayList<>();
1286	>	tasks.add(new StringTask("0"));
1287	>	tasks.add(waiter);
1288	>	tasks.add(new StringTask("2"));
1289	>	long startTime = System.nanoTime();
1290	>	List<Future<String>> futures =
1291	>	p.invokeAll(tasks, timeout, MILLISECONDS);
1292	>	assertEquals(tasks.size(), futures.size());
1293	>	assertTrue(millisElapsedSince(startTime) >= timeout);
1294	>	for (Future<?> future : futures)
1295	>	assertTrue(future.isDone());
1296	>	assertTrue(futures.get(1).isCancelled());
1297	>	try {
1298	>	assertEquals("0", futures.get(0).get());
1299	>	assertEquals("2", futures.get(2).get());
1300	>	break;
1301	>	} catch (CancellationException retryWithLongerTimeout) {
1302	>	timeout *= 2;
1303	>	if (timeout >= LONG_DELAY_MS / 2)
1304	>	fail("expected exactly one task to be cancelled");
1305	>	}
1306	>	}
1307		}
1308		}
1309
1310	+	/**
1311	+	* A fixed delay task with overflowing period should not prevent a
1312	+	* one-shot task from executing.
1313	+	* https://bugs.openjdk.java.net/browse/JDK-8051859
1314	+	*/
1315	+	@SuppressWarnings("FutureReturnValueIgnored")
1316	+	public void testScheduleWithFixedDelay_overflow() throws Exception {
1317	+	final CountDownLatch delayedDone = new CountDownLatch(1);
1318	+	final CountDownLatch immediateDone = new CountDownLatch(1);
1319	+	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
1320	+	try (PoolCleaner cleaner = cleaner(p)) {
1321	+	final Runnable delayed = () -> {
1322	+	delayedDone.countDown();
1323	+	p.submit(() -> immediateDone.countDown());
1324	+	};
1325	+	p.scheduleWithFixedDelay(delayed, 0L, Long.MAX_VALUE, SECONDS);
1326	+	await(delayedDone);
1327	+	await(immediateDone);
1328	+	}
1329	+	}
1330
1331		}

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