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

Comparing jsr166/src/test/tck/ScheduledExecutorTest.java (file contents):
Revision 1.6 by dl, Thu Sep 25 11:02:41 2003 UTC vs.
Revision 1.98 by jsr166, Fri Sep 6 18:43:35 2019 UTC

#	Line 1 | Line 1
1		/*
2	<	* Written by members of JCP JSR-166 Expert Group and released to the
3	<	* public domain. Use, modify, and redistribute this code in any way
4	<	* without acknowledgement. Other contributors include Andrew Wright,
5	<	* Jeffrey Hayes, Pat Fischer, Mike Judd.
2	>	* Written by Doug Lea with assistance from members of JCP JSR-166
3	>	* Expert Group and released to the public domain, as explained at
4	>	* http://creativecommons.org/publicdomain/zero/1.0/
5	>	* Other contributors include Andrew Wright, Jeffrey Hayes,
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 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);
44	>	return new TestSuite(ScheduledExecutorTest.class);
45		}
46
47	<	static class MyRunnable implements Runnable {
48	<	volatile boolean done = false;
49	<	public void run() {
50	<	try {
51	<	Thread.sleep(SMALL_DELAY_MS);
52	<	done = true;
53	<	} catch(Exception e){
47	>	/**
48	>	* execute successfully executes a runnable
49	>	*/
50	>	public void testExecute() throws InterruptedException {
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	>	await(done);
58	>	}
59	>	}
60	>
61	>	/**
62	>	* delayed schedule of callable successfully executes after delay
63	>	*/
64	>	public void testSchedule1() throws Exception {
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();
72	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
73	>	return Boolean.TRUE;
74	>	}};
75	>	Future 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	>
82	>	/**
83	>	* delayed schedule of runnable successfully executes after delay
84	>	*/
85	>	public void testSchedule3() throws Exception {
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(millisElapsedSince(startTime) >= timeoutMillis());
94	>	}};
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	>
102	>	/**
103	>	* scheduleAtFixedRate executes runnable after given initial delay
104	>	*/
105	>	public void testSchedule4() throws Exception {
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(millisElapsedSince(startTime) >= timeoutMillis());
114	>	}};
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);
121	>	}
122	>	}
123	>
124	>	/**
125	>	* scheduleWithFixedDelay executes runnable after given initial delay
126	>	*/
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(millisElapsedSince(startTime) >= timeoutMillis());
136	>	}};
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);
143	>	}
144	>	}
145	>
146	>	static class RunnableCounter implements Runnable {
147	>	AtomicInteger count = new AtomicInteger(0);
148	>	public void run() { count.getAndIncrement(); }
149	>	}
150	>
151	>	/**
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	>	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	<	static class MyCallable implements Callable {
181	<	volatile boolean done = false;
182	<	public Object call() {
183	<	try {
184	<	Thread.sleep(SMALL_DELAY_MS);
185	<	done = true;
186	<	} catch(Exception e){
180	>	/**
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	>	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	<	return Boolean.TRUE;
222	>	fail("unexpected execution rate");
223		}
224		}
225
226		/**
227	<	* execute successfully executes a runnable
227	>	* Submitting null tasks throws NullPointerException
228		*/
229	<	public void testExecute() {
230	<	try {
231	<	MyRunnable runnable =new MyRunnable();
232	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
50	<	p1.execute(runnable);
51	<	assertFalse(runnable.done);
52	<	Thread.sleep(SHORT_DELAY_MS);
53	<	p1.shutdown();
54	<	try {
55	<	Thread.sleep(MEDIUM_DELAY_MS);
56	<	} catch(InterruptedException e){
57	<	unexpectedException();
58	<	}
59	<	assertTrue(runnable.done);
60	<	p1.shutdown();
61	<	joinPool(p1);
229	>	public void testNullTaskSubmission() {
230	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
231	>	try (PoolCleaner cleaner = cleaner(p)) {
232	>	assertNullTaskSubmissionThrowsNullPointerException(p);
233		}
234	<	catch(Exception e){
235	<	unexpectedException();
234	>	}
235	>
236	>	/**
237	>	* Submitted tasks are rejected when shutdown
238	>	*/
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	>	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	>	// ScheduledThreadPoolExecutor has an unbounded queue, so never saturated.
272	>	await(threadsStarted);
273	>
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	>	done.countDown();   // release blocking tasks
283	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
284	>
285	>	assertTaskSubmissionsAreRejected(p);
286	>	}
287	>	assertEquals(p.getCorePoolSize(), p.getCompletedTaskCount());
288	>	}
289	>
290	>	/**
291	>	* getActiveCount increases but doesn't overestimate, when a
292	>	* thread becomes active
293	>	*/
294	>	public void testGetActiveCount() throws InterruptedException {
295	>	final CountDownLatch done = new CountDownLatch(1);
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	>	await(done);
305	>	}});
306	>	await(threadStarted);
307	>	assertEquals(1, p.getActiveCount());
308	>	}
309	>	}
310	>
311	>	/**
312	>	* getCompletedTaskCount increases, but doesn't overestimate,
313	>	* when tasks complete
314	>	*/
315	>	public void testGetCompletedTaskCount() throws InterruptedException {
316	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(2);
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	>	await(threadProceed);
327	>	threadDone.countDown();
328	>	}});
329	>	await(threadStarted);
330	>	assertEquals(0, p.getCompletedTaskCount());
331	>	threadProceed.countDown();
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		}
66	–
340		}
341
342	+	/**
343	+	* getCorePoolSize returns size given in constructor if not otherwise set
344	+	*/
345	+	public void testGetCorePoolSize() throws InterruptedException {
346	+	ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
347	+	try (PoolCleaner cleaner = cleaner(p)) {
348	+	assertEquals(1, p.getCorePoolSize());
349	+	}
350	+	}
351	+
352	+	/**
353	+	* getLargestPoolSize increases, but doesn't overestimate, when
354	+	* multiple threads active
355	+	*/
356	+	public void testGetLargestPoolSize() throws InterruptedException {
357	+	final int THREADS = 3;
358	+	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(THREADS);
359	+	final CountDownLatch threadsStarted = new CountDownLatch(THREADS);
360	+	final CountDownLatch done = new CountDownLatch(1);
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	+	await(done);
368	+	assertEquals(THREADS, p.getLargestPoolSize());
369	+	}});
370	+	await(threadsStarted);
371	+	assertEquals(THREADS, p.getLargestPoolSize());
372	+	}
373	+	assertEquals(THREADS, p.getLargestPoolSize());
374	+	}
375	+
376	+	/**
377	+	* getPoolSize increases, but doesn't overestimate, when threads
378	+	* become active
379	+	*/
380	+	public void testGetPoolSize() throws InterruptedException {
381	+	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
382	+	final CountDownLatch threadStarted = new CountDownLatch(1);
383	+	final CountDownLatch done = new CountDownLatch(1);
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	+	await(done);
391	+	}});
392	+	await(threadStarted);
393	+	assertEquals(1, p.getPoolSize());
394	+	}
395	+	}
396	+
397	+	/**
398	+	* getTaskCount increases, but doesn't overestimate, when tasks
399	+	* submitted
400	+	*/
401	+	public void testGetTaskCount() throws InterruptedException {
402	+	final int TASKS = 3;
403	+	final CountDownLatch done = new CountDownLatch(1);
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	+	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	+	assertEquals(1 + TASKS, p.getTaskCount());
423	+	await(done);
424	+	}});
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	<	* delayed schedule of callable successfully executes after delay
434	>	* getThreadFactory returns factory in constructor if not set
435		*/
436	<	public void testSchedule1() {
437	<	try {
438	<	MyCallable callable = new MyCallable();
439	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
440	<	Future f = p1.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
441	<	assertFalse(callable.done);
79	<	Thread.sleep(MEDIUM_DELAY_MS);
80	<	assertTrue(callable.done);
81	<	assertEquals(Boolean.TRUE, f.get());
82	<	p1.shutdown();
83	<	joinPool(p1);
84	<	} catch(RejectedExecutionException e){}
85	<	catch(Exception e){
86	<	unexpectedException();
436	>	public void testGetThreadFactory() throws InterruptedException {
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	<	*  delayed schedule of runnable successfully executes after delay
447	<	*/
448	<	public void testSchedule3() {
449	<	try {
450	<	MyRunnable runnable = new MyRunnable();
451	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
452	<	p1.schedule(runnable, SMALL_DELAY_MS, TimeUnit.MILLISECONDS);
453	<	Thread.sleep(SHORT_DELAY_MS);
99	<	assertFalse(runnable.done);
100	<	Thread.sleep(MEDIUM_DELAY_MS);
101	<	assertTrue(runnable.done);
102	<	p1.shutdown();
103	<	joinPool(p1);
104	<	} catch(Exception e){
105	<	unexpectedException();
446	>	* setThreadFactory sets the thread factory returned by getThreadFactory
447	>	*/
448	>	public void testSetThreadFactory() throws InterruptedException {
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	<
456	>
457		/**
458	<	* scheduleAtFixedRate executes runnable after given initial delay
458	>	* setThreadFactory(null) throws NPE
459		*/
460	<	public void testSchedule4() {
461	<	try {
462	<	MyRunnable runnable = new MyRunnable();
463	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
464	<	ScheduledCancellable h = p1.scheduleAtFixedRate(runnable, SHORT_DELAY_MS, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
465	<	assertFalse(runnable.done);
466	<	Thread.sleep(MEDIUM_DELAY_MS);
119	<	assertTrue(runnable.done);
120	<	h.cancel(true);
121	<	p1.shutdown();
122	<	joinPool(p1);
123	<	} catch(Exception e){
124	<	unexpectedException();
460	>	public void testSetThreadFactoryNull() throws InterruptedException {
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	<	* scheduleWithFixedDelay executes runnable after given initial delay
471	>	* The default rejected execution handler is AbortPolicy.
472		*/
473	<	public void testSchedule5() {
474	<	try {
475	<	MyRunnable runnable = new MyRunnable();
476	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
477	<	ScheduledCancellable h = p1.scheduleWithFixedDelay(runnable, SHORT_DELAY_MS, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
136	<	assertFalse(runnable.done);
137	<	Thread.sleep(MEDIUM_DELAY_MS);
138	<	assertTrue(runnable.done);
139	<	h.cancel(true);
140	<	p1.shutdown();
141	<	joinPool(p1);
142	<	} catch(Exception e){
143	<	unexpectedException();
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	<
480	>
481		/**
482	<	*  execute (null) throws NPE
482	>	* isShutdown is false before shutdown, true after
483		*/
484	<	public void testExecuteNull() {
485	<	ScheduledExecutor se = null;
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	>	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	>	await(done);
509	>	}});
510	>	await(threadStarted);
511	>	assertFalse(p.isTerminating());
512	>	done.countDown();
513	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
514	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
515	>	assertTrue(p.isTerminated());
516	>	}
517	>	}
518	>
519	>	/**
520	>	* isTerminating is not true when running or when terminated
521	>	*/
522	>	public void testIsTerminating() throws InterruptedException {
523	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
524	>	final CountDownLatch threadStarted = new CountDownLatch(1);
525	>	final CountDownLatch done = new CountDownLatch(1);
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	>	await(done);
533	>	}});
534	>	await(threadStarted);
535	>	assertFalse(p.isTerminating());
536	>	done.countDown();
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	>	}
542	>	}
543	>
544	>	/**
545	>	* getQueue returns the work queue, which contains queued tasks
546	>	*/
547	>	public void testGetQueue() throws InterruptedException {
548	>	final CountDownLatch done = new CountDownLatch(1);
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	>	await(done);
558	>	}};
559	>	tasks[i] = p.schedule(r, 1, MILLISECONDS);
560	>	}
561	>	await(threadStarted);
562	>	BlockingQueue<Runnable> q = p.getQueue();
563	>	assertTrue(q.contains(tasks[tasks.length - 1]));
564	>	assertFalse(q.contains(tasks[0]));
565	>	}
566	>	}
567	>
568	>	/**
569	>	* remove(task) removes queued task, and fails to remove active task
570	>	*/
571	>	public void testRemove() throws InterruptedException {
572	>	final CountDownLatch done = new CountDownLatch(1);
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	>	await(done);
582	>	}};
583	>	tasks[i] = p.schedule(r, 1, MILLISECONDS);
584	>	}
585	>	await(threadStarted);
586	>	BlockingQueue<Runnable> q = p.getQueue();
587	>	assertFalse(p.remove((Runnable)tasks[0]));
588	>	assertTrue(q.contains((Runnable)tasks[4]));
589	>	assertTrue(q.contains((Runnable)tasks[3]));
590	>	assertTrue(p.remove((Runnable)tasks[4]));
591	>	assertFalse(p.remove((Runnable)tasks[4]));
592	>	assertFalse(q.contains((Runnable)tasks[4]));
593	>	assertTrue(q.contains((Runnable)tasks[3]));
594	>	assertTrue(p.remove((Runnable)tasks[3]));
595	>	assertFalse(q.contains((Runnable)tasks[3]));
596	>	}
597	>	}
598	>
599	>	/**
600	>	* purge eventually removes cancelled tasks from the queue
601	>	*/
602	>	public void testPurge() throws InterruptedException {
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;
615	>	// There must eventually be an interference-free point at
616	>	// which purge will not fail. (At worst, when queue is empty.)
617	>	long startTime = System.nanoTime();
618	>	do {
619	>	p.purge();
620	>	long count = p.getTaskCount();
621	>	if (count == max)
622	>	return;
623	>	} while (millisElapsedSince(startTime) < LONG_DELAY_MS);
624	>	fail("Purge failed to remove cancelled tasks");
625	>	}
626	>	}
627	>
628	>	/**
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() 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(LONGER_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	<	se = new ScheduledExecutor(1);
654	<	se.execute(null);
655	<	shouldThrow();
656	<	} catch(NullPointerException success){}
657	<	catch(Exception e){
658	<	unexpectedException();
653	>	queuedTasks = p.shutdownNow();
654	>	} catch (SecurityException ok) {
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	>	* shutdownNow returns a list containing tasks that were not run,
668	>	* and those tasks are drained from the queue
669	>	*/
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.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	>	assertFalse(task.isDone());
694	>	assertFalse(task.isCancelled());
695		}
696	<
697	<	joinPool(se);
696	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
697	>	assertTrue(p.isTerminated());
698		}
699
700		/**
701	<	* schedule (null) throws NPE
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	>	}
762	>
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.isTerminating());
813	>	assertFalse(p.isTerminated());
814	>
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 testScheduleNull() {
894	<	ScheduledExecutor se = new ScheduledExecutor(1);
895	<	try {
896	<	MyCallable callable = null;
897	<	Future f = se.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
898	<	shouldThrow();
173	<	} catch(NullPointerException success){}
174	<	catch(Exception e){
175	<	unexpectedException();
893	>	public void testSubmitCallable() throws Exception {
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);
899		}
177	–	joinPool(se);
900		}
901	<
901	>
902		/**
903	<	* execute throws RejectedExecutionException if shutdown
903	>	* completed submit of runnable returns successfully
904		*/
905	<	public void testSchedule1_RejectedExecutionException() {
906	<	ScheduledExecutor se = new ScheduledExecutor(1);
907	<	try {
908	<	se.shutdown();
909	<	se.schedule(new NoOpRunnable(),
910	<	MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
189	<	shouldThrow();
190	<	} catch(RejectedExecutionException success){
905	>	public void testSubmitRunnable() throws Exception {
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());
911		}
912	<	joinPool(se);
912	>	}
913
914	+	/**
915	+	* completed submit of (runnable, result) returns result
916	+	*/
917	+	public void testSubmitRunnable2() throws Exception {
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);
923	+	}
924		}
925
926		/**
927	<	* schedule throws RejectedExecutionException if shutdown
927	>	* invokeAny(null) throws NullPointerException
928		*/
929	<	public void testSchedule2_RejectedExecutionException() {
930	<	ScheduledExecutor se = new ScheduledExecutor(1);
931	<	try {
932	<	se.shutdown();
933	<	se.schedule(new NoOpCallable(),
934	<	MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
935	<	shouldThrow();
206	<	} catch(RejectedExecutionException success){
929	>	public void testInvokeAny1() throws Exception {
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		}
208	–	joinPool(se);
937		}
938
939		/**
940	<	* schedule callable throws RejectedExecutionException if shutdown
940	>	* invokeAny(empty collection) throws IllegalArgumentException
941		*/
942	<	public void testSchedule3_RejectedExecutionException() {
943	<	ScheduledExecutor se = new ScheduledExecutor(1);
944	<	try {
945	<	se.shutdown();
946	<	se.schedule(new NoOpCallable(),
947	<	MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
948	<	shouldThrow();
949	<	} catch(RejectedExecutionException success){
222	<	}
223	<	joinPool(se);
942	>	public void testInvokeAny2() throws Exception {
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	<	*  scheduleAtFixedRate throws RejectedExecutionException if shutdown
953	>	* invokeAny(c) throws NullPointerException if c has null elements
954		*/
955	<	public void testScheduleAtFixedRate1_RejectedExecutionException() {
956	<	ScheduledExecutor se = new ScheduledExecutor(1);
957	<	try {
958	<	se.shutdown();
959	<	se.scheduleAtFixedRate(new NoOpRunnable(),
960	<	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
961	<	shouldThrow();
962	<	} catch(RejectedExecutionException success){
963	<	}
964	<	joinPool(se);
955	>	public void testInvokeAny3() throws Exception {
956	>	CountDownLatch latch = new CountDownLatch(1);
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();
967	>	}
968		}
969	<
969	>
970		/**
971	<	* scheduleWithFixedDelay throws RejectedExecutionException if shutdown
971	>	* invokeAny(c) throws ExecutionException if no task completes
972		*/
973	<	public void testScheduleWithFixedDelay1_RejectedExecutionException() {
974	<	ScheduledExecutor se = new ScheduledExecutor(1);
975	<	try {
976	<	se.shutdown();
977	<	se.scheduleWithFixedDelay(new NoOpRunnable(),
978	<	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
979	<	shouldThrow();
980	<	} catch(RejectedExecutionException success){
981	<	}
982	<	joinPool(se);
973	>	public void testInvokeAny4() throws Exception {
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
987		/**
988	<	*  getActiveCount increases but doesn't overestimate, when a
989	<	*  thread becomes active
990	<	*/
991	<	public void testGetActiveCount() {
992	<	ScheduledExecutor p2 = new ScheduledExecutor(2);
993	<	assertEquals(0, p2.getActiveCount());
994	<	p2.execute(new SmallRunnable());
995	<	try {
996	<	Thread.sleep(SHORT_DELAY_MS);
997	<	} catch(Exception e){
267	<	unexpectedException();
268	<	}
269	<	assertEquals(1, p2.getActiveCount());
270	<	joinPool(p2);
271	<	}
272	<
273	<	/**
274	<	*    getCompletedTaskCount increases, but doesn't overestimate,
275	<	*   when tasks complete
276	<	*/
277	<	public void testGetCompletedTaskCount() {
278	<	ScheduledExecutor p2 = new ScheduledExecutor(2);
279	<	assertEquals(0, p2.getCompletedTaskCount());
280	<	p2.execute(new SmallRunnable());
281	<	try {
282	<	Thread.sleep(MEDIUM_DELAY_MS);
283	<	} catch(Exception e){
284	<	unexpectedException();
988	>	* invokeAny(c) returns result of some task
989	>	*/
990	>	public void testInvokeAny5() throws Exception {
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);
998		}
286	–	assertEquals(1, p2.getCompletedTaskCount());
287	–	joinPool(p2);
999		}
1000	<
1000	>
1001		/**
1002	<	*  getCorePoolSize returns size given in constructor if not otherwise set
1002	>	* invokeAll(null) throws NPE
1003		*/
1004	<	public void testGetCorePoolSize() {
1005	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
1006	<	assertEquals(1, p1.getCorePoolSize());
1007	<	joinPool(p1);
1004	>	public void testInvokeAll1() throws Exception {
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	<
1013	>
1014		/**
1015	<	*    getLargestPoolSize increases, but doesn't overestimate, when
301	<	*   multiple threads active
1015	>	* invokeAll(empty collection) returns empty list
1016		*/
1017	<	public void testGetLargestPoolSize() {
1018	<	ScheduledExecutor p2 = new ScheduledExecutor(2);
1019	<	assertEquals(0, p2.getLargestPoolSize());
1020	<	p2.execute(new SmallRunnable());
1021	<	p2.execute(new SmallRunnable());
1022	<	try {
1023	<	Thread.sleep(SHORT_DELAY_MS);
310	<	} catch(Exception e){
311	<	unexpectedException();
312	<	}
313	<	assertEquals(2, p2.getLargestPoolSize());
314	<	joinPool(p2);
315	<	}
316	<
317	<	/**
318	<	*   getPoolSize increases, but doesn't overestimate, when threads
319	<	*   become active
320	<	*/
321	<	public void testGetPoolSize() {
322	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
323	<	assertEquals(0, p1.getPoolSize());
324	<	p1.execute(new SmallRunnable());
325	<	assertEquals(1, p1.getPoolSize());
326	<	joinPool(p1);
327	<	}
328	<
329	<	/**
330	<	*    getTaskCount increases, but doesn't overestimate, when tasks
331	<	*    submitted
332	<	*/
333	<	public void testGetTaskCount() {
334	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
335	<	assertEquals(0, p1.getTaskCount());
336	<	for(int i = 0; i < 5; i++)
337	<	p1.execute(new SmallRunnable());
338	<	try {
339	<	Thread.sleep(SHORT_DELAY_MS);
340	<	} catch(Exception e){
341	<	unexpectedException();
1017	>	public void testInvokeAll2() throws Exception {
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());
1024		}
343	–	assertEquals(5, p1.getTaskCount());
344	–	joinPool(p1);
1025		}
1026	<
1026	>
1027		/**
1028	<	*   is isShutDown is false before shutdown, true after
1028	>	* invokeAll(c) throws NPE if c has null elements
1029		*/
1030	<	public void testIsShutdown() {
1031	<
1032	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
1033	<	try {
1034	<	assertFalse(p1.isShutdown());
1030	>	public void testInvokeAll3() throws Exception {
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	<	finally {
1042	<	p1.shutdown();
1041	>	}
1042	>
1043	>	/**
1044	>	* get of invokeAll(c) throws exception on failed task
1045	>	*/
1046	>	public void testInvokeAll4() throws Exception {
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		}
359	–	assertTrue(p1.isShutdown());
1060		}
1061
362	–
1062		/**
1063	<	*   isTerminated is false before termination, true after
1063	>	* invokeAll(c) returns results of all completed tasks
1064		*/
1065	<	public void testIsTerminated() {
1066	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
1067	<	try {
1068	<	p1.execute(new SmallRunnable());
1069	<	} finally {
1070	<	p1.shutdown();
1065	>	public void testInvokeAll5() throws Exception {
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());
1075		}
373	–	try {
374	–	assertTrue(p1.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
375	–	assertTrue(p1.isTerminated());
376	–	} catch(Exception e){
377	–	unexpectedException();
378	–	}
1076		}
1077
1078		/**
1079	<	*  isTerminating is not true when running or when terminated
1079	>	* timed invokeAny(null) throws NPE
1080		*/
1081	<	public void testIsTerminating() {
1082	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
1083	<	assertFalse(p1.isTerminating());
1084	<	try {
1085	<	p1.execute(new SmallRunnable());
1086	<	assertFalse(p1.isTerminating());
1087	<	} finally {
391	<	p1.shutdown();
1081	>	public void testTimedInvokeAny1() throws Exception {
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		}
393	–	try {
394	–	assertTrue(p1.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
395	–	assertTrue(p1.isTerminated());
396	–	assertFalse(p1.isTerminating());
397	–	} catch(Exception e){
398	–	unexpectedException();
399	–	}
1089		}
1090
1091		/**
1092	<	*   purge removes cancelled tasks from the queue
1092	>	* timed invokeAny(,,null) throws NullPointerException
1093		*/
1094	<	public void testPurge() {
1095	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
1096	<	ScheduledCancellable[] tasks = new ScheduledCancellable[5];
1097	<	for(int i = 0; i < 5; i++){
1098	<	tasks[i] = p1.schedule(new SmallRunnable(), 1, TimeUnit.MILLISECONDS);
1094	>	public void testTimedInvokeAnyNullTimeUnit() throws Exception {
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		}
411	–	int max = 5;
412	–	if (tasks[4].cancel(true)) --max;
413	–	if (tasks[3].cancel(true)) --max;
414	–	p1.purge();
415	–	long count = p1.getTaskCount();
416	–	assertTrue(count > 0 && count <= max);
417	–	joinPool(p1);
1104		}
1105
1106		/**
1107	<	*  shutDownNow returns a list containing tasks that were not run
1107	>	* timed invokeAny(empty collection) throws IllegalArgumentException
1108		*/
1109	<	public void testShutDownNow() {
1110	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
1111	<	for(int i = 0; i < 5; i++)
1112	<	p1.schedule(new SmallRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
1113	<	List l = p1.shutdownNow();
1114	<	assertTrue(p1.isShutdown());
1115	<	assertTrue(l.size() > 0 && l.size() <= 5);
1116	<	joinPool(p1);
1109	>	public void testTimedInvokeAny2() throws Exception {
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
1121		/**
1122	<	* In default setting, shutdown cancels periodic but not delayed
435	<	* tasks at shutdown
1122	>	* timed invokeAny(c) throws NPE if c has null elements
1123		*/
1124	<	public void testShutDown1() {
1125	<	try {
1126	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
1127	<	assertTrue(p1.getExecuteExistingDelayedTasksAfterShutdownPolicy());
1128	<	assertFalse(p1.getContinueExistingPeriodicTasksAfterShutdownPolicy());
1124	>	public void testTimedInvokeAny3() throws Exception {
1125	>	CountDownLatch latch = new CountDownLatch(1);
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();
1136	>	}
1137	>	}
1138
1139	<	ScheduledCancellable[] tasks = new ScheduledCancellable[5];
1140	<	for(int i = 0; i < 5; i++)
1141	<	tasks[i] = p1.schedule(new NoOpRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
1142	<	p1.shutdown();
1143	<	BlockingQueue q = p1.getQueue();
1144	<	for (Iterator it = q.iterator(); it.hasNext();) {
1145	<	ScheduledCancellable t = (ScheduledCancellable)it.next();
1146	<	assertFalse(t.isCancelled());
1147	<	}
1148	<	assertTrue(p1.isShutdown());
1149	<	Thread.sleep(SMALL_DELAY_MS);
1150	<	for (int i = 0; i < 5; ++i) {
1151	<	assertTrue(tasks[i].isDone());
1152	<	assertFalse(tasks[i].isCancelled());
1139	>	/**
1140	>	* timed invokeAny(c) throws ExecutionException if no task completes
1141	>	*/
1142	>	public void testTimedInvokeAny4() throws Exception {
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	<
459	<	}
460	<	catch(Exception ex) {
461	<	unexpectedException();
1154	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1155		}
1156		}
1157
1158	+	/**
1159	+	* timed invokeAny(c) returns result of some task
1160	+	*/
1161	+	public void testTimedInvokeAny5() throws Exception {
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, LONG_DELAY_MS, MILLISECONDS);
1169	+	assertSame(TEST_STRING, result);
1170	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1171	+	}
1172	+	}
1173
1174		/**
1175	<	* If setExecuteExistingDelayedTasksAfterShutdownPolicy is false,
468	<	* delayed tasks are cancelled at shutdown
1175	>	* timed invokeAll(null) throws NPE
1176		*/
1177	<	public void testShutDown2() {
1178	<	try {
1179	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
1180	<	p1.setExecuteExistingDelayedTasksAfterShutdownPolicy(false);
1181	<	ScheduledCancellable[] tasks = new ScheduledCancellable[5];
1182	<	for(int i = 0; i < 5; i++)
1183	<	tasks[i] = p1.schedule(new NoOpRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
477	<	p1.shutdown();
478	<	assertTrue(p1.isShutdown());
479	<	BlockingQueue q = p1.getQueue();
480	<	assertTrue(q.isEmpty());
481	<	Thread.sleep(SMALL_DELAY_MS);
482	<	assertTrue(p1.isTerminated());
1177	>	public void testTimedInvokeAll1() throws Exception {
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	<	catch(Exception ex) {
1186	<	unexpectedException();
1185	>	}
1186	>
1187	>	/**
1188	>	* timed invokeAll(,,null) throws NPE
1189	>	*/
1190	>	public void testTimedInvokeAllNullTimeUnit() throws Exception {
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 list
1204	+	*/
1205	+	public void testTimedInvokeAll2() throws Exception {
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());
1213	+	}
1214	+	}
1215
1216		/**
1217	<	* If setContinueExistingPeriodicTasksAfterShutdownPolicy is set false,
492	<	* periodic tasks are not cancelled at shutdown
1217	>	* timed invokeAll(c) throws NPE if c has null elements
1218		*/
1219	<	public void testShutDown3() {
1220	<	try {
1221	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
1222	<	p1.setContinueExistingPeriodicTasksAfterShutdownPolicy(false);
1223	<	ScheduledCancellable task =
1224	<	p1.scheduleAtFixedRate(new NoOpRunnable(), 5, 5, TimeUnit.MILLISECONDS);
1225	<	p1.shutdown();
1226	<	assertTrue(p1.isShutdown());
1227	<	BlockingQueue q = p1.getQueue();
1228	<	assertTrue(q.isEmpty());
504	<	Thread.sleep(SHORT_DELAY_MS);
505	<	assertTrue(p1.isTerminated());
1219	>	public void testTimedInvokeAll3() throws Exception {
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	<	catch(Exception ex) {
1231	<	unexpectedException();
1230	>	}
1231	>
1232	>	/**
1233	>	* get of element of invokeAll(c) throws exception on failed task
1234	>	*/
1235	>	public void testTimedInvokeAll4() throws Exception {
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
1252		/**
1253	<	* if setContinueExistingPeriodicTasksAfterShutdownPolicy is true,
514	<	* periodic tasks are cancelled at shutdown
1253	>	* timed invokeAll(c) returns results of all completed tasks
1254		*/
1255	<	public void testShutDown4() {
1256	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
1257	<	try {
1258	<	p1.setContinueExistingPeriodicTasksAfterShutdownPolicy(true);
1259	<	ScheduledCancellable task =
1260	<	p1.scheduleAtFixedRate(new NoOpRunnable(), 5, 5, TimeUnit.MILLISECONDS);
1261	<	assertFalse(task.isCancelled());
1262	<	p1.shutdown();
1263	<	assertFalse(task.isCancelled());
1264	<	assertFalse(p1.isTerminated());
1265	<	assertTrue(p1.isShutdown());
527	<	Thread.sleep(SHORT_DELAY_MS);
528	<	assertFalse(task.isCancelled());
529	<	task.cancel(true);
530	<	assertTrue(task.isCancelled());
531	<	Thread.sleep(SHORT_DELAY_MS);
532	<	assertTrue(p1.isTerminated());
1255	>	public void testTimedInvokeAll5() throws Exception {
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, LONG_DELAY_MS, MILLISECONDS);
1263	>	assertEquals(2, futures.size());
1264	>	for (Future<String> future : futures)
1265	>	assertSame(TEST_STRING, future.get());
1266		}
1267	<	catch(Exception ex) {
1268	<	unexpectedException();
1267	>	}
1268	>
1269	>	/**
1270	>	* timed invokeAll(c) cancels tasks not completed by timeout
1271	>	*/
1272	>	public void testTimedInvokeAll6() throws Exception {
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	<	finally {
1306	<	p1.shutdownNow();
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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