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

Comparing jsr166/src/test/tck/ScheduledExecutorTest.java (file contents):
Revision 1.27 by jsr166, Sat Nov 21 17:38:05 2009 UTC vs.
Revision 1.89 by jsr166, Tue Mar 28 18:13:10 2017 UTC

#	Line 1 | Line 1
1		/*
2		* Written by Doug Lea with assistance from members of JCP JSR-166
3		* Expert Group and released to the public domain, as explained at
4	<	* http://creativecommons.org/licenses/publicdomain
4	>	* http://creativecommons.org/publicdomain/zero/1.0/
5		* 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 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.HashSet;
15	>	import java.util.List;
16	>	import java.util.concurrent.BlockingQueue;
17	>	import java.util.concurrent.Callable;
18	>	import java.util.concurrent.CancellationException;
19	>	import java.util.concurrent.CountDownLatch;
20	>	import java.util.concurrent.ExecutionException;
21	>	import java.util.concurrent.ExecutorService;
22	>	import java.util.concurrent.Future;
23	>	import java.util.concurrent.RejectedExecutionException;
24	>	import java.util.concurrent.ScheduledFuture;
25	>	import java.util.concurrent.ScheduledThreadPoolExecutor;
26	>	import java.util.concurrent.ThreadFactory;
27	>	import java.util.concurrent.ThreadLocalRandom;
28	>	import java.util.concurrent.ThreadPoolExecutor;
29	>	import java.util.concurrent.atomic.AtomicBoolean;
30	>	import java.util.concurrent.atomic.AtomicInteger;
31	>	import java.util.concurrent.atomic.AtomicLong;
32	>	import java.util.stream.Stream;
33	>
34	>	import junit.framework.Test;
35	>	import junit.framework.TestSuite;
36
37		public class ScheduledExecutorTest extends JSR166TestCase {
38		public static void main(String[] args) {
39	<	junit.textui.TestRunner.run (suite());
39	>	main(suite(), args);
40		}
41		public static Test suite() {
42		return new TestSuite(ScheduledExecutorTest.class);
43		}
44
23	–
45		/**
46		* execute successfully executes a runnable
47		*/
48		public void testExecute() throws InterruptedException {
49	<	TrackedShortRunnable runnable =new TrackedShortRunnable();
50	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
51	<	p1.execute(runnable);
52	<	assertFalse(runnable.done);
53	<	Thread.sleep(SHORT_DELAY_MS);
54	<	try { p1.shutdown(); } catch (SecurityException ok) { return; }
55	<	Thread.sleep(MEDIUM_DELAY_MS);
56	<	assertTrue(runnable.done);
36	<	try { p1.shutdown(); } catch (SecurityException ok) { return; }
37	<	joinPool(p1);
49	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
50	>	try (PoolCleaner cleaner = cleaner(p)) {
51	>	final CountDownLatch done = new CountDownLatch(1);
52	>	final Runnable task = new CheckedRunnable() {
53	>	public void realRun() { done.countDown(); }};
54	>	p.execute(task);
55	>	await(done);
56	>	}
57		}
58
40	–
59		/**
60		* delayed schedule of callable successfully executes after delay
61		*/
62		public void testSchedule1() throws Exception {
63	<	TrackedCallable callable = new TrackedCallable();
64	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
65	<	Future f = p1.schedule(callable, SHORT_DELAY_MS, MILLISECONDS);
66	<	assertFalse(callable.done);
67	<	Thread.sleep(MEDIUM_DELAY_MS);
68	<	assertTrue(callable.done);
69	<	assertEquals(Boolean.TRUE, f.get());
70	<	try { p1.shutdown(); } catch (SecurityException ok) { return; }
71	<	joinPool(p1);
63	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
64	>	try (PoolCleaner cleaner = cleaner(p)) {
65	>	final long startTime = System.nanoTime();
66	>	final CountDownLatch done = new CountDownLatch(1);
67	>	Callable task = new CheckedCallable<Boolean>() {
68	>	public Boolean realCall() {
69	>	done.countDown();
70	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
71	>	return Boolean.TRUE;
72	>	}};
73	>	Future f = p.schedule(task, timeoutMillis(), MILLISECONDS);
74	>	assertSame(Boolean.TRUE, f.get());
75	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
76	>	assertTrue(done.await(0L, MILLISECONDS));
77	>	}
78		}
79
80		/**
81	<	*  delayed schedule of runnable successfully executes after delay
82	<	*/
83	<	public void testSchedule3() throws InterruptedException {
84	<	TrackedShortRunnable runnable = new TrackedShortRunnable();
85	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
86	<	p1.schedule(runnable, SMALL_DELAY_MS, MILLISECONDS);
87	<	Thread.sleep(SHORT_DELAY_MS);
88	<	assertFalse(runnable.done);
89	<	Thread.sleep(MEDIUM_DELAY_MS);
90	<	assertTrue(runnable.done);
91	<	try { p1.shutdown(); } catch (SecurityException ok) { return; }
92	<	joinPool(p1);
81	>	* delayed schedule of runnable successfully executes after delay
82	>	*/
83	>	public void testSchedule3() throws Exception {
84	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
85	>	try (PoolCleaner cleaner = cleaner(p)) {
86	>	final long startTime = System.nanoTime();
87	>	final CountDownLatch done = new CountDownLatch(1);
88	>	Runnable task = new CheckedRunnable() {
89	>	public void realRun() {
90	>	done.countDown();
91	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
92	>	}};
93	>	Future f = p.schedule(task, timeoutMillis(), MILLISECONDS);
94	>	await(done);
95	>	assertNull(f.get(LONG_DELAY_MS, MILLISECONDS));
96	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
97	>	}
98		}
99
100		/**
101		* scheduleAtFixedRate executes runnable after given initial delay
102		*/
103	<	public void testSchedule4() throws InterruptedException {
104	<	TrackedShortRunnable runnable = new TrackedShortRunnable();
105	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
106	<	ScheduledFuture h = p1.scheduleAtFixedRate(runnable, SHORT_DELAY_MS, SHORT_DELAY_MS, MILLISECONDS);
107	<	assertFalse(runnable.done);
108	<	Thread.sleep(MEDIUM_DELAY_MS);
109	<	assertTrue(runnable.done);
110	<	h.cancel(true);
111	<	joinPool(p1);
112	<	}
113	<
114	<	static class RunnableCounter implements Runnable {
115	<	AtomicInteger count = new AtomicInteger(0);
116	<	public void run() { count.getAndIncrement(); }
103	>	public void testSchedule4() throws Exception {
104	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
105	>	try (PoolCleaner cleaner = cleaner(p)) {
106	>	final long startTime = System.nanoTime();
107	>	final CountDownLatch done = new CountDownLatch(1);
108	>	Runnable task = new CheckedRunnable() {
109	>	public void realRun() {
110	>	done.countDown();
111	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
112	>	}};
113	>	ScheduledFuture f =
114	>	p.scheduleAtFixedRate(task, timeoutMillis(),
115	>	LONG_DELAY_MS, MILLISECONDS);
116	>	await(done);
117	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
118	>	f.cancel(true);
119	>	}
120		}
121
122		/**
123		* scheduleWithFixedDelay executes runnable after given initial delay
124		*/
125	<	public void testSchedule5() throws InterruptedException {
126	<	TrackedShortRunnable runnable = new TrackedShortRunnable();
127	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
128	<	ScheduledFuture h = p1.scheduleWithFixedDelay(runnable, SHORT_DELAY_MS, SHORT_DELAY_MS, MILLISECONDS);
129	<	assertFalse(runnable.done);
130	<	Thread.sleep(MEDIUM_DELAY_MS);
131	<	assertTrue(runnable.done);
132	<	h.cancel(true);
133	<	joinPool(p1);
125	>	public void testSchedule5() throws Exception {
126	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
127	>	try (PoolCleaner cleaner = cleaner(p)) {
128	>	final long startTime = System.nanoTime();
129	>	final CountDownLatch done = new CountDownLatch(1);
130	>	Runnable task = new CheckedRunnable() {
131	>	public void realRun() {
132	>	done.countDown();
133	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
134	>	}};
135	>	ScheduledFuture f =
136	>	p.scheduleWithFixedDelay(task, timeoutMillis(),
137	>	LONG_DELAY_MS, MILLISECONDS);
138	>	await(done);
139	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
140	>	f.cancel(true);
141	>	}
142	>	}
143	>
144	>	static class RunnableCounter implements Runnable {
145	>	AtomicInteger count = new AtomicInteger(0);
146	>	public void run() { count.getAndIncrement(); }
147		}
148
149		/**
150	<	* scheduleAtFixedRate executes series of tasks at given rate
150	>	* scheduleAtFixedRate executes series of tasks at given rate.
151	>	* Eventually, it must hold that:
152	>	*   cycles - 1 <= elapsedMillis/delay < cycles
153		*/
154		public void testFixedRateSequence() throws InterruptedException {
155	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
156	<	RunnableCounter counter = new RunnableCounter();
157	<	ScheduledFuture h =
158	<	p1.scheduleAtFixedRate(counter, 0, 1, MILLISECONDS);
159	<	Thread.sleep(SMALL_DELAY_MS);
160	<	h.cancel(true);
161	<	int c = counter.count.get();
162	<	// By time scaling conventions, we must have at least
163	<	// an execution per SHORT delay, but no more than one SHORT more
164	<	assertTrue(c >= SMALL_DELAY_MS / SHORT_DELAY_MS);
165	<	assertTrue(c <= SMALL_DELAY_MS + SHORT_DELAY_MS);
166	<	joinPool(p1);
155	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
156	>	try (PoolCleaner cleaner = cleaner(p)) {
157	>	for (int delay = 1; delay <= LONG_DELAY_MS; delay *= 3) {
158	>	final long startTime = System.nanoTime();
159	>	final int cycles = 8;
160	>	final CountDownLatch done = new CountDownLatch(cycles);
161	>	final Runnable task = new CheckedRunnable() {
162	>	public void realRun() { done.countDown(); }};
163	>	final ScheduledFuture periodicTask =
164	>	p.scheduleAtFixedRate(task, 0, delay, MILLISECONDS);
165	>	final int totalDelayMillis = (cycles - 1) * delay;
166	>	await(done, totalDelayMillis + LONG_DELAY_MS);
167	>	periodicTask.cancel(true);
168	>	final long elapsedMillis = millisElapsedSince(startTime);
169	>	assertTrue(elapsedMillis >= totalDelayMillis);
170	>	if (elapsedMillis <= cycles * delay)
171	>	return;
172	>	// else retry with longer delay
173	>	}
174	>	fail("unexpected execution rate");
175	>	}
176		}
177
178		/**
179	<	* scheduleWithFixedDelay executes series of tasks with given period
179	>	* scheduleWithFixedDelay executes series of tasks with given period.
180	>	* Eventually, it must hold that each task starts at least delay and at
181	>	* most 2 * delay after the termination of the previous task.
182		*/
183		public void testFixedDelaySequence() throws InterruptedException {
184	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
185	<	RunnableCounter counter = new RunnableCounter();
186	<	ScheduledFuture h =
187	<	p1.scheduleWithFixedDelay(counter, 0, 1, MILLISECONDS);
188	<	Thread.sleep(SMALL_DELAY_MS);
189	<	h.cancel(true);
190	<	int c = counter.count.get();
191	<	assertTrue(c >= SMALL_DELAY_MS / SHORT_DELAY_MS);
192	<	assertTrue(c <= SMALL_DELAY_MS + SHORT_DELAY_MS);
193	<	joinPool(p1);
184	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
185	>	try (PoolCleaner cleaner = cleaner(p)) {
186	>	for (int delay = 1; delay <= LONG_DELAY_MS; delay *= 3) {
187	>	final long startTime = System.nanoTime();
188	>	final AtomicLong previous = new AtomicLong(startTime);
189	>	final AtomicBoolean tryLongerDelay = new AtomicBoolean(false);
190	>	final int cycles = 8;
191	>	final CountDownLatch done = new CountDownLatch(cycles);
192	>	final int d = delay;
193	>	final Runnable task = new CheckedRunnable() {
194	>	public void realRun() {
195	>	long now = System.nanoTime();
196	>	long elapsedMillis
197	>	= NANOSECONDS.toMillis(now - previous.get());
198	>	if (done.getCount() == cycles) { // first execution
199	>	if (elapsedMillis >= d)
200	>	tryLongerDelay.set(true);
201	>	} else {
202	>	assertTrue(elapsedMillis >= d);
203	>	if (elapsedMillis >= 2 * d)
204	>	tryLongerDelay.set(true);
205	>	}
206	>	previous.set(now);
207	>	done.countDown();
208	>	}};
209	>	final ScheduledFuture periodicTask =
210	>	p.scheduleWithFixedDelay(task, 0, delay, MILLISECONDS);
211	>	final int totalDelayMillis = (cycles - 1) * delay;
212	>	await(done, totalDelayMillis + cycles * LONG_DELAY_MS);
213	>	periodicTask.cancel(true);
214	>	final long elapsedMillis = millisElapsedSince(startTime);
215	>	assertTrue(elapsedMillis >= totalDelayMillis);
216	>	if (!tryLongerDelay.get())
217	>	return;
218	>	// else retry with longer delay
219	>	}
220	>	fail("unexpected execution rate");
221	>	}
222		}
223
138	–
224		/**
225	<	*  execute (null) throws NPE
225	>	* execute(null) throws NPE
226		*/
227		public void testExecuteNull() throws InterruptedException {
228	<	ScheduledThreadPoolExecutor se = null;
229	<	try {
230	<	se = new ScheduledThreadPoolExecutor(1);
231	<	se.execute(null);
232	<	shouldThrow();
233	<	} catch (NullPointerException success) {}
234	<
150	<	joinPool(se);
228	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
229	>	try (PoolCleaner cleaner = cleaner(p)) {
230	>	try {
231	>	p.execute(null);
232	>	shouldThrow();
233	>	} catch (NullPointerException success) {}
234	>	}
235		}
236
237		/**
238	<	* schedule (null) throws NPE
238	>	* schedule(null) throws NPE
239		*/
240		public void testScheduleNull() throws InterruptedException {
241	<	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
242	<	try {
243	<	TrackedCallable callable = null;
244	<	Future f = se.schedule(callable, SHORT_DELAY_MS, MILLISECONDS);
245	<	shouldThrow();
246	<	} catch (NullPointerException success) {}
247	<	joinPool(se);
241	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
242	>	try (PoolCleaner cleaner = cleaner(p)) {
243	>	try {
244	>	TrackedCallable callable = null;
245	>	Future f = p.schedule(callable, SHORT_DELAY_MS, MILLISECONDS);
246	>	shouldThrow();
247	>	} catch (NullPointerException success) {}
248	>	}
249		}
250
251		/**
252		* execute throws RejectedExecutionException if shutdown
253		*/
254		public void testSchedule1_RejectedExecutionException() throws InterruptedException {
255	<	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
256	<	try {
257	<	se.shutdown();
258	<	se.schedule(new NoOpRunnable(),
259	<	MEDIUM_DELAY_MS, MILLISECONDS);
260	<	shouldThrow();
261	<	} catch (RejectedExecutionException success) {
262	<	} catch (SecurityException ok) {
255	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
256	>	try (PoolCleaner cleaner = cleaner(p)) {
257	>	try {
258	>	p.shutdown();
259	>	p.schedule(new NoOpRunnable(),
260	>	MEDIUM_DELAY_MS, MILLISECONDS);
261	>	shouldThrow();
262	>	} catch (RejectedExecutionException success) {
263	>	} catch (SecurityException ok) {}
264		}
179	–
180	–	joinPool(se);
181	–
265		}
266
267		/**
268		* schedule throws RejectedExecutionException if shutdown
269		*/
270		public void testSchedule2_RejectedExecutionException() throws InterruptedException {
271	<	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
272	<	try {
273	<	se.shutdown();
274	<	se.schedule(new NoOpCallable(),
275	<	MEDIUM_DELAY_MS, MILLISECONDS);
276	<	shouldThrow();
277	<	} catch (RejectedExecutionException success) {
278	<	} catch (SecurityException ok) {
271	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
272	>	try (PoolCleaner cleaner = cleaner(p)) {
273	>	try {
274	>	p.shutdown();
275	>	p.schedule(new NoOpCallable(),
276	>	MEDIUM_DELAY_MS, MILLISECONDS);
277	>	shouldThrow();
278	>	} catch (RejectedExecutionException success) {
279	>	} catch (SecurityException ok) {}
280		}
197	–	joinPool(se);
281		}
282
283		/**
284		* schedule callable throws RejectedExecutionException if shutdown
285		*/
286	<	public void testSchedule3_RejectedExecutionException() throws InterruptedException {
287	<	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
288	<	try {
289	<	se.shutdown();
290	<	se.schedule(new NoOpCallable(),
291	<	MEDIUM_DELAY_MS, MILLISECONDS);
292	<	shouldThrow();
293	<	} catch (RejectedExecutionException success) {
294	<	} catch (SecurityException ok) {
286	>	public void testSchedule3_RejectedExecutionException() throws InterruptedException {
287	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
288	>	try (PoolCleaner cleaner = cleaner(p)) {
289	>	try {
290	>	p.shutdown();
291	>	p.schedule(new NoOpCallable(),
292	>	MEDIUM_DELAY_MS, MILLISECONDS);
293	>	shouldThrow();
294	>	} catch (RejectedExecutionException success) {
295	>	} catch (SecurityException ok) {}
296		}
213	–	joinPool(se);
297		}
298
299		/**
300	<	*  scheduleAtFixedRate throws RejectedExecutionException if shutdown
300	>	* scheduleAtFixedRate throws RejectedExecutionException if shutdown
301		*/
302		public void testScheduleAtFixedRate1_RejectedExecutionException() throws InterruptedException {
303	<	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
304	<	try {
305	<	se.shutdown();
306	<	se.scheduleAtFixedRate(new NoOpRunnable(),
307	<	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS);
308	<	shouldThrow();
309	<	} catch (RejectedExecutionException success) {
310	<	} catch (SecurityException ok) {
303	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
304	>	try (PoolCleaner cleaner = cleaner(p)) {
305	>	try {
306	>	p.shutdown();
307	>	p.scheduleAtFixedRate(new NoOpRunnable(),
308	>	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS);
309	>	shouldThrow();
310	>	} catch (RejectedExecutionException success) {
311	>	} catch (SecurityException ok) {}
312		}
229	–	joinPool(se);
313		}
314
315		/**
316		* scheduleWithFixedDelay throws RejectedExecutionException if shutdown
317		*/
318		public void testScheduleWithFixedDelay1_RejectedExecutionException() throws InterruptedException {
319	<	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
320	<	try {
321	<	se.shutdown();
322	<	se.scheduleWithFixedDelay(new NoOpRunnable(),
323	<	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS);
324	<	shouldThrow();
325	<	} catch (RejectedExecutionException success) {
326	<	} catch (SecurityException ok) {
319	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
320	>	try (PoolCleaner cleaner = cleaner(p)) {
321	>	try {
322	>	p.shutdown();
323	>	p.scheduleWithFixedDelay(new NoOpRunnable(),
324	>	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS);
325	>	shouldThrow();
326	>	} catch (RejectedExecutionException success) {
327	>	} catch (SecurityException ok) {}
328		}
245	–	joinPool(se);
329		}
330
331		/**
332	<	*  getActiveCount increases but doesn't overestimate, when a
333	<	*  thread becomes active
332	>	* getActiveCount increases but doesn't overestimate, when a
333	>	* thread becomes active
334		*/
335		public void testGetActiveCount() throws InterruptedException {
336	<	ScheduledThreadPoolExecutor p2 = new ScheduledThreadPoolExecutor(2);
337	<	assertEquals(0, p2.getActiveCount());
338	<	p2.execute(new SmallRunnable());
339	<	Thread.sleep(SHORT_DELAY_MS);
340	<	assertEquals(1, p2.getActiveCount());
341	<	joinPool(p2);
336	>	final CountDownLatch done = new CountDownLatch(1);
337	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(2);
338	>	try (PoolCleaner cleaner = cleaner(p, done)) {
339	>	final CountDownLatch threadStarted = new CountDownLatch(1);
340	>	assertEquals(0, p.getActiveCount());
341	>	p.execute(new CheckedRunnable() {
342	>	public void realRun() throws InterruptedException {
343	>	threadStarted.countDown();
344	>	assertEquals(1, p.getActiveCount());
345	>	await(done);
346	>	}});
347	>	await(threadStarted);
348	>	assertEquals(1, p.getActiveCount());
349	>	}
350		}
351
352		/**
353	<	*    getCompletedTaskCount increases, but doesn't overestimate,
354	<	*   when tasks complete
353	>	* getCompletedTaskCount increases, but doesn't overestimate,
354	>	* when tasks complete
355		*/
356		public void testGetCompletedTaskCount() throws InterruptedException {
357	<	ScheduledThreadPoolExecutor p2 = new ScheduledThreadPoolExecutor(2);
358	<	assertEquals(0, p2.getCompletedTaskCount());
359	<	p2.execute(new SmallRunnable());
360	<	Thread.sleep(MEDIUM_DELAY_MS);
361	<	assertEquals(1, p2.getCompletedTaskCount());
362	<	joinPool(p2);
357	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(2);
358	>	try (PoolCleaner cleaner = cleaner(p)) {
359	>	final CountDownLatch threadStarted = new CountDownLatch(1);
360	>	final CountDownLatch threadProceed = new CountDownLatch(1);
361	>	final CountDownLatch threadDone = new CountDownLatch(1);
362	>	assertEquals(0, p.getCompletedTaskCount());
363	>	p.execute(new CheckedRunnable() {
364	>	public void realRun() throws InterruptedException {
365	>	threadStarted.countDown();
366	>	assertEquals(0, p.getCompletedTaskCount());
367	>	await(threadProceed);
368	>	threadDone.countDown();
369	>	}});
370	>	await(threadStarted);
371	>	assertEquals(0, p.getCompletedTaskCount());
372	>	threadProceed.countDown();
373	>	await(threadDone);
374	>	long startTime = System.nanoTime();
375	>	while (p.getCompletedTaskCount() != 1) {
376	>	if (millisElapsedSince(startTime) > LONG_DELAY_MS)
377	>	fail("timed out");
378	>	Thread.yield();
379	>	}
380	>	}
381		}
382
383		/**
384	<	*  getCorePoolSize returns size given in constructor if not otherwise set
384	>	* getCorePoolSize returns size given in constructor if not otherwise set
385		*/
386		public void testGetCorePoolSize() throws InterruptedException {
387	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
388	<	assertEquals(1, p1.getCorePoolSize());
389	<	joinPool(p1);
387	>	ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
388	>	try (PoolCleaner cleaner = cleaner(p)) {
389	>	assertEquals(1, p.getCorePoolSize());
390	>	}
391		}
392
393		/**
394	<	*    getLargestPoolSize increases, but doesn't overestimate, when
395	<	*   multiple threads active
394	>	* getLargestPoolSize increases, but doesn't overestimate, when
395	>	* multiple threads active
396		*/
397		public void testGetLargestPoolSize() throws InterruptedException {
398	<	ScheduledThreadPoolExecutor p2 = new ScheduledThreadPoolExecutor(2);
399	<	assertEquals(0, p2.getLargestPoolSize());
400	<	p2.execute(new SmallRunnable());
401	<	p2.execute(new SmallRunnable());
402	<	Thread.sleep(SHORT_DELAY_MS);
403	<	assertEquals(2, p2.getLargestPoolSize());
404	<	joinPool(p2);
398	>	final int THREADS = 3;
399	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(THREADS);
400	>	final CountDownLatch threadsStarted = new CountDownLatch(THREADS);
401	>	final CountDownLatch done = new CountDownLatch(1);
402	>	try (PoolCleaner cleaner = cleaner(p, done)) {
403	>	assertEquals(0, p.getLargestPoolSize());
404	>	for (int i = 0; i < THREADS; i++)
405	>	p.execute(new CheckedRunnable() {
406	>	public void realRun() throws InterruptedException {
407	>	threadsStarted.countDown();
408	>	await(done);
409	>	assertEquals(THREADS, p.getLargestPoolSize());
410	>	}});
411	>	await(threadsStarted);
412	>	assertEquals(THREADS, p.getLargestPoolSize());
413	>	}
414	>	assertEquals(THREADS, p.getLargestPoolSize());
415		}
416
417		/**
418	<	*   getPoolSize increases, but doesn't overestimate, when threads
419	<	*   become active
418	>	* getPoolSize increases, but doesn't overestimate, when threads
419	>	* become active
420		*/
421		public void testGetPoolSize() throws InterruptedException {
422	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
423	<	assertEquals(0, p1.getPoolSize());
424	<	p1.execute(new SmallRunnable());
425	<	assertEquals(1, p1.getPoolSize());
426	<	joinPool(p1);
422	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
423	>	final CountDownLatch threadStarted = new CountDownLatch(1);
424	>	final CountDownLatch done = new CountDownLatch(1);
425	>	try (PoolCleaner cleaner = cleaner(p, done)) {
426	>	assertEquals(0, p.getPoolSize());
427	>	p.execute(new CheckedRunnable() {
428	>	public void realRun() throws InterruptedException {
429	>	threadStarted.countDown();
430	>	assertEquals(1, p.getPoolSize());
431	>	await(done);
432	>	}});
433	>	await(threadStarted);
434	>	assertEquals(1, p.getPoolSize());
435	>	}
436		}
437
438		/**
439	<	*    getTaskCount increases, but doesn't overestimate, when tasks
440	<	*    submitted
439	>	* getTaskCount increases, but doesn't overestimate, when tasks
440	>	* submitted
441		*/
442		public void testGetTaskCount() throws InterruptedException {
443	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
444	<	assertEquals(0, p1.getTaskCount());
445	<	for (int i = 0; i < 5; i++)
446	<	p1.execute(new SmallRunnable());
447	<	Thread.sleep(SHORT_DELAY_MS);
448	<	assertEquals(5, p1.getTaskCount());
449	<	joinPool(p1);
443	>	final int TASKS = 3;
444	>	final CountDownLatch done = new CountDownLatch(1);
445	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
446	>	try (PoolCleaner cleaner = cleaner(p, done)) {
447	>	final CountDownLatch threadStarted = new CountDownLatch(1);
448	>	assertEquals(0, p.getTaskCount());
449	>	assertEquals(0, p.getCompletedTaskCount());
450	>	p.execute(new CheckedRunnable() {
451	>	public void realRun() throws InterruptedException {
452	>	threadStarted.countDown();
453	>	await(done);
454	>	}});
455	>	await(threadStarted);
456	>	assertEquals(1, p.getTaskCount());
457	>	assertEquals(0, p.getCompletedTaskCount());
458	>	for (int i = 0; i < TASKS; i++) {
459	>	assertEquals(1 + i, p.getTaskCount());
460	>	p.execute(new CheckedRunnable() {
461	>	public void realRun() throws InterruptedException {
462	>	threadStarted.countDown();
463	>	assertEquals(1 + TASKS, p.getTaskCount());
464	>	await(done);
465	>	}});
466	>	}
467	>	assertEquals(1 + TASKS, p.getTaskCount());
468	>	assertEquals(0, p.getCompletedTaskCount());
469	>	}
470	>	assertEquals(1 + TASKS, p.getTaskCount());
471	>	assertEquals(1 + TASKS, p.getCompletedTaskCount());
472		}
473
474		/**
475		* getThreadFactory returns factory in constructor if not set
476		*/
477		public void testGetThreadFactory() throws InterruptedException {
478	<	ThreadFactory tf = new SimpleThreadFactory();
479	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1, tf);
480	<	assertSame(tf, p.getThreadFactory());
481	<	joinPool(p);
478	>	final ThreadFactory threadFactory = new SimpleThreadFactory();
479	>	final ScheduledThreadPoolExecutor p =
480	>	new ScheduledThreadPoolExecutor(1, threadFactory);
481	>	try (PoolCleaner cleaner = cleaner(p)) {
482	>	assertSame(threadFactory, p.getThreadFactory());
483	>	}
484		}
485
486		/**
487		* setThreadFactory sets the thread factory returned by getThreadFactory
488		*/
489		public void testSetThreadFactory() throws InterruptedException {
490	<	ThreadFactory tf = new SimpleThreadFactory();
491	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
492	<	p.setThreadFactory(tf);
493	<	assertSame(tf, p.getThreadFactory());
494	<	joinPool(p);
490	>	ThreadFactory threadFactory = new SimpleThreadFactory();
491	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
492	>	try (PoolCleaner cleaner = cleaner(p)) {
493	>	p.setThreadFactory(threadFactory);
494	>	assertSame(threadFactory, p.getThreadFactory());
495	>	}
496		}
497
498		/**
499		* setThreadFactory(null) throws NPE
500		*/
501		public void testSetThreadFactoryNull() throws InterruptedException {
502	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
503	<	try {
504	<	p.setThreadFactory(null);
505	<	shouldThrow();
506	<	} catch (NullPointerException success) {
507	<	} finally {
354	<	joinPool(p);
502	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
503	>	try (PoolCleaner cleaner = cleaner(p)) {
504	>	try {
505	>	p.setThreadFactory(null);
506	>	shouldThrow();
507	>	} catch (NullPointerException success) {}
508		}
509		}
510
511		/**
512	<	*   is isShutDown is false before shutdown, true after
512	>	* The default rejected execution handler is AbortPolicy.
513		*/
514	<	public void testIsShutdown() {
515	<
516	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
517	<	try {
518	<	assertFalse(p1.isShutdown());
366	<	}
367	<	finally {
368	<	try { p1.shutdown(); } catch (SecurityException ok) { return; }
514	>	public void testDefaultRejectedExecutionHandler() {
515	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
516	>	try (PoolCleaner cleaner = cleaner(p)) {
517	>	assertTrue(p.getRejectedExecutionHandler()
518	>	instanceof ThreadPoolExecutor.AbortPolicy);
519		}
370	–	assertTrue(p1.isShutdown());
520		}
521
522	+	/**
523	+	* isShutdown is false before shutdown, true after
524	+	*/
525	+	public void testIsShutdown() {
526	+	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
527	+	assertFalse(p.isShutdown());
528	+	try (PoolCleaner cleaner = cleaner(p)) {
529	+	try {
530	+	p.shutdown();
531	+	assertTrue(p.isShutdown());
532	+	} catch (SecurityException ok) {}
533	+	}
534	+	}
535
536		/**
537	<	*   isTerminated is false before termination, true after
537	>	* isTerminated is false before termination, true after
538		*/
539		public void testIsTerminated() throws InterruptedException {
540	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
541	<	try {
542	<	p1.execute(new SmallRunnable());
543	<	} finally {
544	<	try { p1.shutdown(); } catch (SecurityException ok) { return; }
540	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
541	>	try (PoolCleaner cleaner = cleaner(p)) {
542	>	final CountDownLatch threadStarted = new CountDownLatch(1);
543	>	final CountDownLatch done = new CountDownLatch(1);
544	>	assertFalse(p.isTerminated());
545	>	p.execute(new CheckedRunnable() {
546	>	public void realRun() throws InterruptedException {
547	>	assertFalse(p.isTerminated());
548	>	threadStarted.countDown();
549	>	await(done);
550	>	}});
551	>	await(threadStarted);
552	>	assertFalse(p.isTerminating());
553	>	done.countDown();
554	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
555	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
556	>	assertTrue(p.isTerminated());
557		}
384	–	assertTrue(p1.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
385	–	assertTrue(p1.isTerminated());
558		}
559
560		/**
561	<	*  isTerminating is not true when running or when terminated
561	>	* isTerminating is not true when running or when terminated
562		*/
563		public void testIsTerminating() throws InterruptedException {
564	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
565	<	assertFalse(p1.isTerminating());
566	<	try {
567	<	p1.execute(new SmallRunnable());
568	<	assertFalse(p1.isTerminating());
569	<	} finally {
570	<	try { p1.shutdown(); } catch (SecurityException ok) { return; }
564	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
565	>	final CountDownLatch threadStarted = new CountDownLatch(1);
566	>	final CountDownLatch done = new CountDownLatch(1);
567	>	try (PoolCleaner cleaner = cleaner(p)) {
568	>	assertFalse(p.isTerminating());
569	>	p.execute(new CheckedRunnable() {
570	>	public void realRun() throws InterruptedException {
571	>	assertFalse(p.isTerminating());
572	>	threadStarted.countDown();
573	>	await(done);
574	>	}});
575	>	await(threadStarted);
576	>	assertFalse(p.isTerminating());
577	>	done.countDown();
578	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
579	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
580	>	assertTrue(p.isTerminated());
581	>	assertFalse(p.isTerminating());
582		}
400	–
401	–	assertTrue(p1.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
402	–	assertTrue(p1.isTerminated());
403	–	assertFalse(p1.isTerminating());
583		}
584
585		/**
586		* getQueue returns the work queue, which contains queued tasks
587		*/
588		public void testGetQueue() throws InterruptedException {
589	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
590	<	ScheduledFuture[] tasks = new ScheduledFuture[5];
591	<	for (int i = 0; i < 5; i++) {
592	<	tasks[i] = p1.schedule(new SmallPossiblyInterruptedRunnable(), 1, MILLISECONDS);
593	<	}
594	<	try {
595	<	Thread.sleep(SHORT_DELAY_MS);
596	<	BlockingQueue<Runnable> q = p1.getQueue();
597	<	assertTrue(q.contains(tasks[4]));
589	>	final CountDownLatch done = new CountDownLatch(1);
590	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
591	>	try (PoolCleaner cleaner = cleaner(p, done)) {
592	>	final CountDownLatch threadStarted = new CountDownLatch(1);
593	>	ScheduledFuture[] tasks = new ScheduledFuture[5];
594	>	for (int i = 0; i < tasks.length; i++) {
595	>	Runnable r = new CheckedRunnable() {
596	>	public void realRun() throws InterruptedException {
597	>	threadStarted.countDown();
598	>	await(done);
599	>	}};
600	>	tasks[i] = p.schedule(r, 1, MILLISECONDS);
601	>	}
602	>	await(threadStarted);
603	>	BlockingQueue<Runnable> q = p.getQueue();
604	>	assertTrue(q.contains(tasks[tasks.length - 1]));
605		assertFalse(q.contains(tasks[0]));
420	–	} finally {
421	–	joinPool(p1);
606		}
607		}
608
#	Line 426 | Line 610 | public class ScheduledExecutorTest exten
610		* remove(task) removes queued task, and fails to remove active task
611		*/
612		public void testRemove() throws InterruptedException {
613	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
614	<	ScheduledFuture[] tasks = new ScheduledFuture[5];
615	<	for (int i = 0; i < 5; i++) {
616	<	tasks[i] = p1.schedule(new SmallPossiblyInterruptedRunnable(), 1, MILLISECONDS);
617	<	}
618	<	try {
619	<	Thread.sleep(SHORT_DELAY_MS);
620	<	BlockingQueue<Runnable> q = p1.getQueue();
621	<	assertFalse(p1.remove((Runnable)tasks[0]));
613	>	final CountDownLatch done = new CountDownLatch(1);
614	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
615	>	try (PoolCleaner cleaner = cleaner(p, done)) {
616	>	ScheduledFuture[] tasks = new ScheduledFuture[5];
617	>	final CountDownLatch threadStarted = new CountDownLatch(1);
618	>	for (int i = 0; i < tasks.length; i++) {
619	>	Runnable r = new CheckedRunnable() {
620	>	public void realRun() throws InterruptedException {
621	>	threadStarted.countDown();
622	>	await(done);
623	>	}};
624	>	tasks[i] = p.schedule(r, 1, MILLISECONDS);
625	>	}
626	>	await(threadStarted);
627	>	BlockingQueue<Runnable> q = p.getQueue();
628	>	assertFalse(p.remove((Runnable)tasks[0]));
629		assertTrue(q.contains((Runnable)tasks[4]));
630		assertTrue(q.contains((Runnable)tasks[3]));
631	<	assertTrue(p1.remove((Runnable)tasks[4]));
632	<	assertFalse(p1.remove((Runnable)tasks[4]));
631	>	assertTrue(p.remove((Runnable)tasks[4]));
632	>	assertFalse(p.remove((Runnable)tasks[4]));
633		assertFalse(q.contains((Runnable)tasks[4]));
634		assertTrue(q.contains((Runnable)tasks[3]));
635	<	assertTrue(p1.remove((Runnable)tasks[3]));
635	>	assertTrue(p.remove((Runnable)tasks[3]));
636		assertFalse(q.contains((Runnable)tasks[3]));
446	–	} finally {
447	–	joinPool(p1);
637		}
638		}
639
640		/**
641	<	*  purge removes cancelled tasks from the queue
641	>	* purge eventually removes cancelled tasks from the queue
642		*/
643		public void testPurge() throws InterruptedException {
644	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
645	<	ScheduledFuture[] tasks = new ScheduledFuture[5];
646	<	for (int i = 0; i < 5; i++) {
647	<	tasks[i] = p1.schedule(new SmallPossiblyInterruptedRunnable(), SHORT_DELAY_MS, MILLISECONDS);
648	<	}
649	<	try {
650	<	int max = 5;
644	>	final ScheduledFuture[] tasks = new ScheduledFuture[5];
645	>	final Runnable releaser = new Runnable() { public void run() {
646	>	for (ScheduledFuture task : tasks)
647	>	if (task != null) task.cancel(true); }};
648	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
649	>	try (PoolCleaner cleaner = cleaner(p, releaser)) {
650	>	for (int i = 0; i < tasks.length; i++)
651	>	tasks[i] = p.schedule(new SmallPossiblyInterruptedRunnable(),
652	>	LONG_DELAY_MS, MILLISECONDS);
653	>	int max = tasks.length;
654		if (tasks[4].cancel(true)) --max;
655		if (tasks[3].cancel(true)) --max;
656		// There must eventually be an interference-free point at
657		// which purge will not fail. (At worst, when queue is empty.)
658	<	int k;
659	<	for (k = 0; k < SMALL_DELAY_MS; ++k) {
660	<	p1.purge();
661	<	long count = p1.getTaskCount();
662	<	if (count >= 0 && count <= max)
663	<	break;
664	<	Thread.sleep(1);
665	<	}
474	<	assertTrue(k < SMALL_DELAY_MS);
475	<	} finally {
476	<	joinPool(p1);
658	>	long startTime = System.nanoTime();
659	>	do {
660	>	p.purge();
661	>	long count = p.getTaskCount();
662	>	if (count == max)
663	>	return;
664	>	} while (millisElapsedSince(startTime) < LONG_DELAY_MS);
665	>	fail("Purge failed to remove cancelled tasks");
666		}
667		}
668
669		/**
670	<	*  shutDownNow returns a list containing tasks that were not run
671	<	*/
672	<	public void testShutDownNow() throws InterruptedException {
673	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
674	<	for (int i = 0; i < 5; i++)
675	<	p1.schedule(new SmallPossiblyInterruptedRunnable(), SHORT_DELAY_MS, MILLISECONDS);
676	<	List l;
670	>	* shutdownNow returns a list containing tasks that were not run,
671	>	* and those tasks are drained from the queue
672	>	*/
673	>	public void testShutdownNow() throws InterruptedException {
674	>	final int poolSize = 2;
675	>	final int count = 5;
676	>	final AtomicInteger ran = new AtomicInteger(0);
677	>	final ScheduledThreadPoolExecutor p =
678	>	new ScheduledThreadPoolExecutor(poolSize);
679	>	final CountDownLatch threadsStarted = new CountDownLatch(poolSize);
680	>	Runnable waiter = new CheckedRunnable() { public void realRun() {
681	>	threadsStarted.countDown();
682	>	try {
683	>	MILLISECONDS.sleep(2 * LONG_DELAY_MS);
684	>	} catch (InterruptedException success) {}
685	>	ran.getAndIncrement();
686	>	}};
687	>	for (int i = 0; i < count; i++)
688	>	p.execute(waiter);
689	>	await(threadsStarted);
690	>	assertEquals(poolSize, p.getActiveCount());
691	>	assertEquals(0, p.getCompletedTaskCount());
692	>	final List<Runnable> queuedTasks;
693		try {
694	<	l = p1.shutdownNow();
694	>	queuedTasks = p.shutdownNow();
695		} catch (SecurityException ok) {
696	<	return;
696	>	return; // Allowed in case test doesn't have privs
697		}
698	<	assertTrue(p1.isShutdown());
699	<	assertTrue(l.size() > 0 && l.size() <= 5);
700	<	joinPool(p1);
698	>	assertTrue(p.isShutdown());
699	>	assertTrue(p.getQueue().isEmpty());
700	>	assertEquals(count - poolSize, queuedTasks.size());
701	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
702	>	assertTrue(p.isTerminated());
703	>	assertEquals(poolSize, ran.get());
704	>	assertEquals(poolSize, p.getCompletedTaskCount());
705		}
706
707		/**
708	<	* In default setting, shutdown cancels periodic but not delayed
709	<	* tasks at shutdown
710	<	*/
711	<	public void testShutDown1() throws InterruptedException {
712	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
713	<	assertTrue(p1.getExecuteExistingDelayedTasksAfterShutdownPolicy());
714	<	assertFalse(p1.getContinueExistingPeriodicTasksAfterShutdownPolicy());
715	<
716	<	ScheduledFuture[] tasks = new ScheduledFuture[5];
717	<	for (int i = 0; i < 5; i++)
718	<	tasks[i] = p1.schedule(new NoOpRunnable(), SHORT_DELAY_MS, MILLISECONDS);
719	<	try { p1.shutdown(); } catch (SecurityException ok) { return; }
720	<	BlockingQueue q = p1.getQueue();
721	<	for (Iterator it = q.iterator(); it.hasNext();) {
722	<	ScheduledFuture t = (ScheduledFuture)it.next();
723	<	assertFalse(t.isCancelled());
708	>	* shutdownNow returns a list containing tasks that were not run,
709	>	* and those tasks are drained from the queue
710	>	*/
711	>	public void testShutdownNow_delayedTasks() throws InterruptedException {
712	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
713	>	List<ScheduledFuture> tasks = new ArrayList<>();
714	>	for (int i = 0; i < 3; i++) {
715	>	Runnable r = new NoOpRunnable();
716	>	tasks.add(p.schedule(r, 9, SECONDS));
717	>	tasks.add(p.scheduleAtFixedRate(r, 9, 9, SECONDS));
718	>	tasks.add(p.scheduleWithFixedDelay(r, 9, 9, SECONDS));
719	>	}
720	>	if (testImplementationDetails)
721	>	assertEquals(new HashSet(tasks), new HashSet(p.getQueue()));
722	>	final List<Runnable> queuedTasks;
723	>	try {
724	>	queuedTasks = p.shutdownNow();
725	>	} catch (SecurityException ok) {
726	>	return; // Allowed in case test doesn't have privs
727		}
728	<	assertTrue(p1.isShutdown());
729	<	Thread.sleep(SMALL_DELAY_MS);
730	<	for (int i = 0; i < 5; ++i) {
731	<	assertTrue(tasks[i].isDone());
732	<	assertFalse(tasks[i].isCancelled());
728	>	assertTrue(p.isShutdown());
729	>	assertTrue(p.getQueue().isEmpty());
730	>	if (testImplementationDetails)
731	>	assertEquals(new HashSet(tasks), new HashSet(queuedTasks));
732	>	assertEquals(tasks.size(), queuedTasks.size());
733	>	for (ScheduledFuture task : tasks) {
734	>	assertFalse(task.isDone());
735	>	assertFalse(task.isCancelled());
736		}
737	+	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
738	+	assertTrue(p.isTerminated());
739		}
740
524	–
741		/**
742	<	* If setExecuteExistingDelayedTasksAfterShutdownPolicy is false,
743	<	* delayed tasks are cancelled at shutdown
744	<	*/
745	<	public void testShutDown2() throws InterruptedException {
746	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
747	<	p1.setExecuteExistingDelayedTasksAfterShutdownPolicy(false);
748	<	ScheduledFuture[] tasks = new ScheduledFuture[5];
749	<	for (int i = 0; i < 5; i++)
750	<	tasks[i] = p1.schedule(new NoOpRunnable(), SHORT_DELAY_MS, MILLISECONDS);
751	<	try { p1.shutdown(); } catch (SecurityException ok) { return; }
752	<	assertTrue(p1.isShutdown());
753	<	BlockingQueue q = p1.getQueue();
754	<	assertTrue(q.isEmpty());
755	<	Thread.sleep(SMALL_DELAY_MS);
756	<	assertTrue(p1.isTerminated());
757	<	}
742	>	* By default, periodic tasks are cancelled at shutdown.
743	>	* By default, delayed tasks keep running after shutdown.
744	>	* Check that changing the default values work:
745	>	* - setExecuteExistingDelayedTasksAfterShutdownPolicy
746	>	* - setContinueExistingPeriodicTasksAfterShutdownPolicy
747	>	*/
748	>	public void testShutdown_cancellation() throws Exception {
749	>	final int poolSize = 6;
750	>	final ScheduledThreadPoolExecutor p
751	>	= new ScheduledThreadPoolExecutor(poolSize);
752	>	final BlockingQueue<Runnable> q = p.getQueue();
753	>	final ThreadLocalRandom rnd = ThreadLocalRandom.current();
754	>	final boolean effectiveDelayedPolicy;
755	>	final boolean effectivePeriodicPolicy;
756	>	final boolean effectiveRemovePolicy;
757	>
758	>	if (rnd.nextBoolean())
759	>	p.setExecuteExistingDelayedTasksAfterShutdownPolicy(
760	>	effectiveDelayedPolicy = rnd.nextBoolean());
761	>	else
762	>	effectiveDelayedPolicy = true;
763	>	assertEquals(effectiveDelayedPolicy,
764	>	p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
765	>
766	>	if (rnd.nextBoolean())
767	>	p.setContinueExistingPeriodicTasksAfterShutdownPolicy(
768	>	effectivePeriodicPolicy = rnd.nextBoolean());
769	>	else
770	>	effectivePeriodicPolicy = false;
771	>	assertEquals(effectivePeriodicPolicy,
772	>	p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
773	>
774	>	if (rnd.nextBoolean())
775	>	p.setRemoveOnCancelPolicy(
776	>	effectiveRemovePolicy = rnd.nextBoolean());
777	>	else
778	>	effectiveRemovePolicy = false;
779	>	assertEquals(effectiveRemovePolicy,
780	>	p.getRemoveOnCancelPolicy());
781	>
782	>	// System.err.println("effectiveDelayedPolicy="+effectiveDelayedPolicy);
783	>	// System.err.println("effectivePeriodicPolicy="+effectivePeriodicPolicy);
784	>	// System.err.println("effectiveRemovePolicy="+effectiveRemovePolicy);
785	>
786	>	// Strategy: Wedge the pool with one wave of "blocker" tasks,
787	>	// then add a second wave that waits in the queue.
788	>	final AtomicInteger ran = new AtomicInteger(0);
789	>	final CountDownLatch poolBlocked = new CountDownLatch(poolSize);
790	>	final CountDownLatch unblock = new CountDownLatch(1);
791	>
792	>	class Task extends CheckedRunnable {
793	>	public void realRun() throws InterruptedException {
794	>	ran.getAndIncrement();
795	>	poolBlocked.countDown();
796	>	await(unblock);
797	>	}
798	>	}
799
800	+	class PeriodicTask extends Task {
801	+	PeriodicTask(int rounds) { this.rounds = rounds; }
802	+	int rounds;
803	+	public void realRun() throws InterruptedException {
804	+	if (--rounds == 0) super.realRun();
805	+	}
806	+	}
807
808	<	/**
545	<	* If setContinueExistingPeriodicTasksAfterShutdownPolicy is set false,
546	<	* periodic tasks are not cancelled at shutdown
547	<	*/
548	<	public void testShutDown3() throws InterruptedException {
549	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
550	<	p1.setContinueExistingPeriodicTasksAfterShutdownPolicy(false);
551	<	ScheduledFuture task =
552	<	p1.scheduleAtFixedRate(new NoOpRunnable(), 5, 5, MILLISECONDS);
553	<	try { p1.shutdown(); } catch (SecurityException ok) { return; }
554	<	assertTrue(p1.isShutdown());
555	<	BlockingQueue q = p1.getQueue();
556	<	assertTrue(q.isEmpty());
557	<	Thread.sleep(SHORT_DELAY_MS);
558	<	assertTrue(p1.isTerminated());
559	<	}
808	>	Runnable task = new Task();
809
810	<	/**
811	<	* if setContinueExistingPeriodicTasksAfterShutdownPolicy is true,
812	<	* periodic tasks are cancelled at shutdown
813	<	*/
814	<	public void testShutDown4() throws InterruptedException {
815	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
816	<	try {
817	<	p1.setContinueExistingPeriodicTasksAfterShutdownPolicy(true);
818	<	ScheduledFuture task =
819	<	p1.scheduleAtFixedRate(new NoOpRunnable(), 1, 1, MILLISECONDS);
820	<	assertFalse(task.isCancelled());
572	<	try { p1.shutdown(); } catch (SecurityException ok) { return; }
573	<	assertFalse(task.isCancelled());
574	<	assertFalse(p1.isTerminated());
575	<	assertTrue(p1.isShutdown());
576	<	Thread.sleep(SHORT_DELAY_MS);
577	<	assertFalse(task.isCancelled());
578	<	assertTrue(task.cancel(true));
579	<	assertTrue(task.isDone());
580	<	Thread.sleep(SHORT_DELAY_MS);
581	<	assertTrue(p1.isTerminated());
810	>	List<Future<?>> immediates = new ArrayList<>();
811	>	List<Future<?>> delayeds   = new ArrayList<>();
812	>	List<Future<?>> periodics  = new ArrayList<>();
813	>
814	>	immediates.add(p.submit(task));
815	>	delayeds.add(p.schedule(task, 1, MILLISECONDS));
816	>	for (int rounds : new int[] { 1, 2 }) {
817	>	periodics.add(p.scheduleAtFixedRate(
818	>	new PeriodicTask(rounds), 1, 1, MILLISECONDS));
819	>	periodics.add(p.scheduleWithFixedDelay(
820	>	new PeriodicTask(rounds), 1, 1, MILLISECONDS));
821		}
822	<	finally {
823	<	joinPool(p1);
822	>
823	>	await(poolBlocked);
824	>
825	>	assertEquals(poolSize, ran.get());
826	>	assertTrue(q.isEmpty());
827	>
828	>	// Add second wave of tasks.
829	>	immediates.add(p.submit(task));
830	>	long delay_ms = effectiveDelayedPolicy ? 1 : LONG_DELAY_MS;
831	>	delayeds.add(p.schedule(task, delay_ms, MILLISECONDS));
832	>	for (int rounds : new int[] { 1, 2 }) {
833	>	periodics.add(p.scheduleAtFixedRate(
834	>	new PeriodicTask(rounds), 1, 1, MILLISECONDS));
835	>	periodics.add(p.scheduleWithFixedDelay(
836	>	new PeriodicTask(rounds), 1, 1, MILLISECONDS));
837	>	}
838	>
839	>	assertEquals(poolSize, q.size());
840	>	assertEquals(poolSize, ran.get());
841	>
842	>	immediates.forEach(
843	>	f -> assertTrue(((ScheduledFuture)f).getDelay(NANOSECONDS) <= 0L));
844	>
845	>	Stream.of(immediates, delayeds, periodics).flatMap(c -> c.stream())
846	>	.forEach(f -> assertFalse(f.isDone()));
847	>
848	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
849	>	assertTrue(p.isShutdown());
850	>	assertTrue(p.isTerminating());
851	>	assertFalse(p.isTerminated());
852	>
853	>	if (rnd.nextBoolean())
854	>	assertThrows(
855	>	RejectedExecutionException.class,
856	>	() -> p.submit(task),
857	>	() -> p.schedule(task, 1, SECONDS),
858	>	() -> p.scheduleAtFixedRate(
859	>	new PeriodicTask(1), 1, 1, SECONDS),
860	>	() -> p.scheduleWithFixedDelay(
861	>	new PeriodicTask(2), 1, 1, SECONDS));
862	>
863	>	assertTrue(q.contains(immediates.get(1)));
864	>	assertTrue(!effectiveDelayedPolicy
865	>	^ q.contains(delayeds.get(1)));
866	>	assertTrue(!effectivePeriodicPolicy
867	>	^ q.containsAll(periodics.subList(4, 8)));
868	>
869	>	immediates.forEach(f -> assertFalse(f.isDone()));
870	>
871	>	assertFalse(delayeds.get(0).isDone());
872	>	if (effectiveDelayedPolicy)
873	>	assertFalse(delayeds.get(1).isDone());
874	>	else
875	>	assertTrue(delayeds.get(1).isCancelled());
876	>
877	>	if (testImplementationDetails) {
878	>	if (effectivePeriodicPolicy)
879	>	// TODO: ensure periodic tasks continue executing
880	>	periodics.forEach(
881	>	f -> {
882	>	assertFalse(f.isDone());
883	>	assertTrue(f.cancel(false));
884	>	});
885	>	else {
886	>	periodics.subList(0, 4).forEach(f -> assertFalse(f.isDone()));
887	>	periodics.subList(4, 8).forEach(f -> assertTrue(f.isCancelled()));
888	>	}
889		}
890	+
891	+	unblock.countDown();    // Release all pool threads
892	+
893	+	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
894	+	assertFalse(p.isTerminating());
895	+	assertTrue(p.isTerminated());
896	+
897	+	assertTrue(q.isEmpty());
898	+
899	+	for (Future<?> f : immediates) assertNull(f.get());
900	+
901	+	assertNull(delayeds.get(0).get());
902	+	if (effectiveDelayedPolicy)
903	+	assertNull(delayeds.get(1).get());
904	+	else
905	+	assertTrue(delayeds.get(1).isCancelled());
906	+
907	+	periodics.forEach(f -> assertTrue(f.isDone()));
908	+	periodics.forEach(f -> assertTrue(f.isCancelled()));
909	+
910	+	assertEquals(poolSize + 1 + (effectiveDelayedPolicy ? 1 : 0), ran.get());
911		}
912
913		/**
914		* completed submit of callable returns result
915		*/
916		public void testSubmitCallable() throws Exception {
917	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
918	<	try {
917	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
918	>	try (PoolCleaner cleaner = cleaner(e)) {
919		Future<String> future = e.submit(new StringTask());
920		String result = future.get();
921		assertSame(TEST_STRING, result);
597	–	} finally {
598	–	joinPool(e);
922		}
923		}
924
#	Line 603 | Line 926 | public class ScheduledExecutorTest exten
926		* completed submit of runnable returns successfully
927		*/
928		public void testSubmitRunnable() throws Exception {
929	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
930	<	try {
929	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
930	>	try (PoolCleaner cleaner = cleaner(e)) {
931		Future<?> future = e.submit(new NoOpRunnable());
932		future.get();
933		assertTrue(future.isDone());
611	–	} finally {
612	–	joinPool(e);
934		}
935		}
936
#	Line 617 | Line 938 | public class ScheduledExecutorTest exten
938		* completed submit of (runnable, result) returns result
939		*/
940		public void testSubmitRunnable2() throws Exception {
941	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
942	<	try {
941	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
942	>	try (PoolCleaner cleaner = cleaner(e)) {
943		Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING);
944		String result = future.get();
945		assertSame(TEST_STRING, result);
625	–	} finally {
626	–	joinPool(e);
946		}
947		}
948
#	Line 631 | Line 950 | public class ScheduledExecutorTest exten
950		* invokeAny(null) throws NPE
951		*/
952		public void testInvokeAny1() throws Exception {
953	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
954	<	try {
955	<	e.invokeAny(null);
956	<	shouldThrow();
957	<	} catch (NullPointerException success) {
958	<	} finally {
640	<	joinPool(e);
953	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
954	>	try (PoolCleaner cleaner = cleaner(e)) {
955	>	try {
956	>	e.invokeAny(null);
957	>	shouldThrow();
958	>	} catch (NullPointerException success) {}
959		}
960		}
961
#	Line 645 | Line 963 | public class ScheduledExecutorTest exten
963		* invokeAny(empty collection) throws IAE
964		*/
965		public void testInvokeAny2() throws Exception {
966	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
967	<	try {
968	<	e.invokeAny(new ArrayList<Callable<String>>());
969	<	shouldThrow();
970	<	} catch (IllegalArgumentException success) {
971	<	} finally {
654	<	joinPool(e);
966	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
967	>	try (PoolCleaner cleaner = cleaner(e)) {
968	>	try {
969	>	e.invokeAny(new ArrayList<Callable<String>>());
970	>	shouldThrow();
971	>	} catch (IllegalArgumentException success) {}
972		}
973		}
974
#	Line 659 | Line 976 | public class ScheduledExecutorTest exten
976		* invokeAny(c) throws NPE if c has null elements
977		*/
978		public void testInvokeAny3() throws Exception {
979	<	final CountDownLatch latch = new CountDownLatch(1);
980	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
981	<	try {
982	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
983	<	l.add(new Callable<String>() {
667	<	public String call() {
668	<	try {
669	<	latch.await();
670	<	} catch (InterruptedException quittingTime) {}
671	<	return TEST_STRING;
672	<	}});
979	>	CountDownLatch latch = new CountDownLatch(1);
980	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
981	>	try (PoolCleaner cleaner = cleaner(e)) {
982	>	List<Callable<String>> l = new ArrayList<>();
983	>	l.add(latchAwaitingStringTask(latch));
984		l.add(null);
985	<	e.invokeAny(l);
986	<	shouldThrow();
987	<	} catch (NullPointerException success) {
988	<	} finally {
985	>	try {
986	>	e.invokeAny(l);
987	>	shouldThrow();
988	>	} catch (NullPointerException success) {}
989		latch.countDown();
679	–	joinPool(e);
990		}
991		}
992
#	Line 684 | Line 994 | public class ScheduledExecutorTest exten
994		* invokeAny(c) throws ExecutionException if no task completes
995		*/
996		public void testInvokeAny4() throws Exception {
997	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
998	<	try {
999	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
997	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
998	>	try (PoolCleaner cleaner = cleaner(e)) {
999	>	List<Callable<String>> l = new ArrayList<>();
1000		l.add(new NPETask());
1001	<	e.invokeAny(l);
1002	<	shouldThrow();
1003	<	} catch (ExecutionException success) {
1004	<	assertTrue(success.getCause() instanceof NullPointerException);
1005	<	} finally {
1006	<	joinPool(e);
1001	>	try {
1002	>	e.invokeAny(l);
1003	>	shouldThrow();
1004	>	} catch (ExecutionException success) {
1005	>	assertTrue(success.getCause() instanceof NullPointerException);
1006	>	}
1007		}
1008		}
1009
#	Line 701 | Line 1011 | public class ScheduledExecutorTest exten
1011		* invokeAny(c) returns result of some task
1012		*/
1013		public void testInvokeAny5() throws Exception {
1014	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1015	<	try {
1016	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1014	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1015	>	try (PoolCleaner cleaner = cleaner(e)) {
1016	>	List<Callable<String>> l = new ArrayList<>();
1017		l.add(new StringTask());
1018		l.add(new StringTask());
1019		String result = e.invokeAny(l);
1020		assertSame(TEST_STRING, result);
711	–	} finally {
712	–	joinPool(e);
1021		}
1022		}
1023
#	Line 717 | Line 1025 | public class ScheduledExecutorTest exten
1025		* invokeAll(null) throws NPE
1026		*/
1027		public void testInvokeAll1() throws Exception {
1028	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1029	<	try {
1030	<	e.invokeAll(null);
1031	<	shouldThrow();
1032	<	} catch (NullPointerException success) {
1033	<	} finally {
726	<	joinPool(e);
1028	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1029	>	try (PoolCleaner cleaner = cleaner(e)) {
1030	>	try {
1031	>	e.invokeAll(null);
1032	>	shouldThrow();
1033	>	} catch (NullPointerException success) {}
1034		}
1035		}
1036
#	Line 731 | Line 1038 | public class ScheduledExecutorTest exten
1038		* invokeAll(empty collection) returns empty collection
1039		*/
1040		public void testInvokeAll2() throws Exception {
1041	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1042	<	try {
1041	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1042	>	try (PoolCleaner cleaner = cleaner(e)) {
1043		List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>());
1044		assertTrue(r.isEmpty());
738	–	} finally {
739	–	joinPool(e);
1045		}
1046		}
1047
#	Line 744 | Line 1049 | public class ScheduledExecutorTest exten
1049		* invokeAll(c) throws NPE if c has null elements
1050		*/
1051		public void testInvokeAll3() throws Exception {
1052	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1053	<	try {
1054	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1052	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1053	>	try (PoolCleaner cleaner = cleaner(e)) {
1054	>	List<Callable<String>> l = new ArrayList<>();
1055		l.add(new StringTask());
1056		l.add(null);
1057	<	e.invokeAll(l);
1058	<	shouldThrow();
1059	<	} catch (NullPointerException success) {
1060	<	} finally {
756	<	joinPool(e);
1057	>	try {
1058	>	e.invokeAll(l);
1059	>	shouldThrow();
1060	>	} catch (NullPointerException success) {}
1061		}
1062		}
1063
#	Line 761 | Line 1065 | public class ScheduledExecutorTest exten
1065		* get of invokeAll(c) throws exception on failed task
1066		*/
1067		public void testInvokeAll4() throws Exception {
1068	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1069	<	try {
1070	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1068	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1069	>	try (PoolCleaner cleaner = cleaner(e)) {
1070	>	List<Callable<String>> l = new ArrayList<>();
1071		l.add(new NPETask());
1072	<	List<Future<String>> result = e.invokeAll(l);
1073	<	assertEquals(1, result.size());
1074	<	for (Future<String> future : result)
1075	<	future.get();
1076	<	shouldThrow();
1077	<	} catch (ExecutionException success) {
1078	<	assertTrue(success.getCause() instanceof NullPointerException);
1079	<	} finally {
776	<	joinPool(e);
1072	>	List<Future<String>> futures = e.invokeAll(l);
1073	>	assertEquals(1, futures.size());
1074	>	try {
1075	>	futures.get(0).get();
1076	>	shouldThrow();
1077	>	} catch (ExecutionException success) {
1078	>	assertTrue(success.getCause() instanceof NullPointerException);
1079	>	}
1080		}
1081		}
1082
#	Line 781 | Line 1084 | public class ScheduledExecutorTest exten
1084		* invokeAll(c) returns results of all completed tasks
1085		*/
1086		public void testInvokeAll5() throws Exception {
1087	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1088	<	try {
1089	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1087	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1088	>	try (PoolCleaner cleaner = cleaner(e)) {
1089	>	List<Callable<String>> l = new ArrayList<>();
1090		l.add(new StringTask());
1091		l.add(new StringTask());
1092	<	List<Future<String>> result = e.invokeAll(l);
1093	<	assertEquals(2, result.size());
1094	<	for (Future<String> future : result)
1092	>	List<Future<String>> futures = e.invokeAll(l);
1093	>	assertEquals(2, futures.size());
1094	>	for (Future<String> future : futures)
1095		assertSame(TEST_STRING, future.get());
793	–	} finally {
794	–	joinPool(e);
1096		}
1097		}
1098
#	Line 799 | Line 1100 | public class ScheduledExecutorTest exten
1100		* timed invokeAny(null) throws NPE
1101		*/
1102		public void testTimedInvokeAny1() throws Exception {
1103	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1104	<	try {
1105	<	e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS);
1106	<	shouldThrow();
1107	<	} catch (NullPointerException success) {
1108	<	} finally {
808	<	joinPool(e);
1103	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1104	>	try (PoolCleaner cleaner = cleaner(e)) {
1105	>	try {
1106	>	e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS);
1107	>	shouldThrow();
1108	>	} catch (NullPointerException success) {}
1109		}
1110		}
1111
#	Line 813 | Line 1113 | public class ScheduledExecutorTest exten
1113		* timed invokeAny(,,null) throws NPE
1114		*/
1115		public void testTimedInvokeAnyNullTimeUnit() throws Exception {
1116	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1117	<	try {
1118	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1116	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1117	>	try (PoolCleaner cleaner = cleaner(e)) {
1118	>	List<Callable<String>> l = new ArrayList<>();
1119		l.add(new StringTask());
1120	<	e.invokeAny(l, MEDIUM_DELAY_MS, null);
1121	<	shouldThrow();
1122	<	} catch (NullPointerException success) {
1123	<	} finally {
824	<	joinPool(e);
1120	>	try {
1121	>	e.invokeAny(l, MEDIUM_DELAY_MS, null);
1122	>	shouldThrow();
1123	>	} catch (NullPointerException success) {}
1124		}
1125		}
1126
#	Line 829 | Line 1128 | public class ScheduledExecutorTest exten
1128		* timed invokeAny(empty collection) throws IAE
1129		*/
1130		public void testTimedInvokeAny2() throws Exception {
1131	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1132	<	try {
1133	<	e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
1134	<	shouldThrow();
1135	<	} catch (IllegalArgumentException success) {
1136	<	} finally {
838	<	joinPool(e);
1131	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1132	>	try (PoolCleaner cleaner = cleaner(e)) {
1133	>	try {
1134	>	e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
1135	>	shouldThrow();
1136	>	} catch (IllegalArgumentException success) {}
1137		}
1138		}
1139
#	Line 843 | Line 1141 | public class ScheduledExecutorTest exten
1141		* timed invokeAny(c) throws NPE if c has null elements
1142		*/
1143		public void testTimedInvokeAny3() throws Exception {
1144	<	final CountDownLatch latch = new CountDownLatch(1);
1145	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1146	<	try {
1147	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1148	<	l.add(new Callable<String>() {
851	<	public String call() {
852	<	try {
853	<	latch.await();
854	<	} catch (InterruptedException quittingTime) {}
855	<	return TEST_STRING;
856	<	}});
1144	>	CountDownLatch latch = new CountDownLatch(1);
1145	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1146	>	try (PoolCleaner cleaner = cleaner(e)) {
1147	>	List<Callable<String>> l = new ArrayList<>();
1148	>	l.add(latchAwaitingStringTask(latch));
1149		l.add(null);
1150	<	e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1151	<	shouldThrow();
1152	<	} catch (NullPointerException success) {
1153	<	} finally {
1150	>	try {
1151	>	e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1152	>	shouldThrow();
1153	>	} catch (NullPointerException success) {}
1154		latch.countDown();
863	–	joinPool(e);
1155		}
1156		}
1157
#	Line 868 | Line 1159 | public class ScheduledExecutorTest exten
1159		* timed invokeAny(c) throws ExecutionException if no task completes
1160		*/
1161		public void testTimedInvokeAny4() throws Exception {
1162	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1163	<	try {
1164	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1162	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1163	>	try (PoolCleaner cleaner = cleaner(e)) {
1164	>	long startTime = System.nanoTime();
1165	>	List<Callable<String>> l = new ArrayList<>();
1166		l.add(new NPETask());
1167	<	e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1168	<	shouldThrow();
1169	<	} catch (ExecutionException success) {
1170	<	assertTrue(success.getCause() instanceof NullPointerException);
1171	<	} finally {
1172	<	joinPool(e);
1167	>	try {
1168	>	e.invokeAny(l, LONG_DELAY_MS, MILLISECONDS);
1169	>	shouldThrow();
1170	>	} catch (ExecutionException success) {
1171	>	assertTrue(success.getCause() instanceof NullPointerException);
1172	>	}
1173	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1174		}
1175		}
1176
#	Line 885 | Line 1178 | public class ScheduledExecutorTest exten
1178		* timed invokeAny(c) returns result of some task
1179		*/
1180		public void testTimedInvokeAny5() throws Exception {
1181	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1182	<	try {
1183	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1181	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1182	>	try (PoolCleaner cleaner = cleaner(e)) {
1183	>	long startTime = System.nanoTime();
1184	>	List<Callable<String>> l = new ArrayList<>();
1185		l.add(new StringTask());
1186		l.add(new StringTask());
1187	<	String result = e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1187	>	String result = e.invokeAny(l, LONG_DELAY_MS, MILLISECONDS);
1188		assertSame(TEST_STRING, result);
1189	<	} finally {
896	<	joinPool(e);
1189	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1190		}
1191		}
1192
#	Line 901 | Line 1194 | public class ScheduledExecutorTest exten
1194		* timed invokeAll(null) throws NPE
1195		*/
1196		public void testTimedInvokeAll1() throws Exception {
1197	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1198	<	try {
1199	<	e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS);
1200	<	shouldThrow();
1201	<	} catch (NullPointerException success) {
1202	<	} finally {
910	<	joinPool(e);
1197	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1198	>	try (PoolCleaner cleaner = cleaner(e)) {
1199	>	try {
1200	>	e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS);
1201	>	shouldThrow();
1202	>	} catch (NullPointerException success) {}
1203		}
1204		}
1205
#	Line 915 | Line 1207 | public class ScheduledExecutorTest exten
1207		* timed invokeAll(,,null) throws NPE
1208		*/
1209		public void testTimedInvokeAllNullTimeUnit() throws Exception {
1210	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1211	<	try {
1212	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1210	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1211	>	try (PoolCleaner cleaner = cleaner(e)) {
1212	>	List<Callable<String>> l = new ArrayList<>();
1213		l.add(new StringTask());
1214	<	e.invokeAll(l, MEDIUM_DELAY_MS, null);
1215	<	shouldThrow();
1216	<	} catch (NullPointerException success) {
1217	<	} finally {
926	<	joinPool(e);
1214	>	try {
1215	>	e.invokeAll(l, MEDIUM_DELAY_MS, null);
1216	>	shouldThrow();
1217	>	} catch (NullPointerException success) {}
1218		}
1219		}
1220
#	Line 931 | Line 1222 | public class ScheduledExecutorTest exten
1222		* timed invokeAll(empty collection) returns empty collection
1223		*/
1224		public void testTimedInvokeAll2() throws Exception {
1225	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1226	<	try {
1227	<	List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
1225	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1226	>	try (PoolCleaner cleaner = cleaner(e)) {
1227	>	List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(),
1228	>	MEDIUM_DELAY_MS, MILLISECONDS);
1229		assertTrue(r.isEmpty());
938	–	} finally {
939	–	joinPool(e);
1230		}
1231		}
1232
#	Line 944 | Line 1234 | public class ScheduledExecutorTest exten
1234		* timed invokeAll(c) throws NPE if c has null elements
1235		*/
1236		public void testTimedInvokeAll3() throws Exception {
1237	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1238	<	try {
1239	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1237	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1238	>	try (PoolCleaner cleaner = cleaner(e)) {
1239	>	List<Callable<String>> l = new ArrayList<>();
1240		l.add(new StringTask());
1241		l.add(null);
1242	<	e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1243	<	shouldThrow();
1244	<	} catch (NullPointerException success) {
1245	<	} finally {
956	<	joinPool(e);
1242	>	try {
1243	>	e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1244	>	shouldThrow();
1245	>	} catch (NullPointerException success) {}
1246		}
1247		}
1248
#	Line 961 | Line 1250 | public class ScheduledExecutorTest exten
1250		* get of element of invokeAll(c) throws exception on failed task
1251		*/
1252		public void testTimedInvokeAll4() throws Exception {
1253	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1254	<	try {
1255	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1253	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1254	>	try (PoolCleaner cleaner = cleaner(e)) {
1255	>	List<Callable<String>> l = new ArrayList<>();
1256		l.add(new NPETask());
1257	<	List<Future<String>> result = e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1258	<	assertEquals(1, result.size());
1259	<	for (Future<String> future : result)
1260	<	future.get();
1261	<	shouldThrow();
1262	<	} catch (ExecutionException success) {
1263	<	assertTrue(success.getCause() instanceof NullPointerException);
1264	<	} finally {
1265	<	joinPool(e);
1257	>	List<Future<String>> futures =
1258	>	e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS);
1259	>	assertEquals(1, futures.size());
1260	>	try {
1261	>	futures.get(0).get();
1262	>	shouldThrow();
1263	>	} catch (ExecutionException success) {
1264	>	assertTrue(success.getCause() instanceof NullPointerException);
1265	>	}
1266		}
1267		}
1268
#	Line 981 | Line 1270 | public class ScheduledExecutorTest exten
1270		* timed invokeAll(c) returns results of all completed tasks
1271		*/
1272		public void testTimedInvokeAll5() throws Exception {
1273	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1274	<	try {
1275	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1273	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1274	>	try (PoolCleaner cleaner = cleaner(e)) {
1275	>	List<Callable<String>> l = new ArrayList<>();
1276		l.add(new StringTask());
1277		l.add(new StringTask());
1278	<	List<Future<String>> result = e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1279	<	assertEquals(2, result.size());
1280	<	for (Future<String> future : result)
1278	>	List<Future<String>> futures =
1279	>	e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS);
1280	>	assertEquals(2, futures.size());
1281	>	for (Future<String> future : futures)
1282		assertSame(TEST_STRING, future.get());
993	–	} finally {
994	–	joinPool(e);
1283		}
1284		}
1285
#	Line 999 | Line 1287 | public class ScheduledExecutorTest exten
1287		* timed invokeAll(c) cancels tasks not completed by timeout
1288		*/
1289		public void testTimedInvokeAll6() throws Exception {
1290	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1291	<	try {
1292	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1293	<	l.add(new StringTask());
1294	<	l.add(Executors.callable(new MediumPossiblyInterruptedRunnable(), TEST_STRING));
1295	<	l.add(new StringTask());
1296	<	List<Future<String>> result = e.invokeAll(l, SHORT_DELAY_MS, MILLISECONDS);
1297	<	assertEquals(3, result.size());
1298	<	Iterator<Future<String>> it = result.iterator();
1299	<	Future<String> f1 = it.next();
1300	<	Future<String> f2 = it.next();
1301	<	Future<String> f3 = it.next();
1302	<	assertTrue(f1.isDone());
1303	<	assertTrue(f2.isDone());
1304	<	assertTrue(f3.isDone());
1305	<	assertFalse(f1.isCancelled());
1306	<	assertTrue(f2.isCancelled());
1307	<	} finally {
1308	<	joinPool(e);
1290	>	for (long timeout = timeoutMillis();;) {
1291	>	final CountDownLatch done = new CountDownLatch(1);
1292	>	final Callable<String> waiter = new CheckedCallable<String>() {
1293	>	public String realCall() {
1294	>	try { done.await(LONG_DELAY_MS, MILLISECONDS); }
1295	>	catch (InterruptedException ok) {}
1296	>	return "1"; }};
1297	>	final ExecutorService p = new ScheduledThreadPoolExecutor(2);
1298	>	try (PoolCleaner cleaner = cleaner(p, done)) {
1299	>	List<Callable<String>> tasks = new ArrayList<>();
1300	>	tasks.add(new StringTask("0"));
1301	>	tasks.add(waiter);
1302	>	tasks.add(new StringTask("2"));
1303	>	long startTime = System.nanoTime();
1304	>	List<Future<String>> futures =
1305	>	p.invokeAll(tasks, timeout, MILLISECONDS);
1306	>	assertEquals(tasks.size(), futures.size());
1307	>	assertTrue(millisElapsedSince(startTime) >= timeout);
1308	>	for (Future future : futures)
1309	>	assertTrue(future.isDone());
1310	>	assertTrue(futures.get(1).isCancelled());
1311	>	try {
1312	>	assertEquals("0", futures.get(0).get());
1313	>	assertEquals("2", futures.get(2).get());
1314	>	break;
1315	>	} catch (CancellationException retryWithLongerTimeout) {
1316	>	timeout *= 2;
1317	>	if (timeout >= LONG_DELAY_MS / 2)
1318	>	fail("expected exactly one task to be cancelled");
1319	>	}
1320	>	}
1321		}
1322		}
1323
1324	+	/**
1325	+	* A fixed delay task with overflowing period should not prevent a
1326	+	* one-shot task from executing.
1327	+	* https://bugs.openjdk.java.net/browse/JDK-8051859
1328	+	*/
1329	+	public void testScheduleWithFixedDelay_overflow() throws Exception {
1330	+	final CountDownLatch delayedDone = new CountDownLatch(1);
1331	+	final CountDownLatch immediateDone = new CountDownLatch(1);
1332	+	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
1333	+	try (PoolCleaner cleaner = cleaner(p)) {
1334	+	final Runnable immediate = new Runnable() { public void run() {
1335	+	immediateDone.countDown();
1336	+	}};
1337	+	final Runnable delayed = new Runnable() { public void run() {
1338	+	delayedDone.countDown();
1339	+	p.submit(immediate);
1340	+	}};
1341	+	p.scheduleWithFixedDelay(delayed, 0L, Long.MAX_VALUE, SECONDS);
1342	+	await(delayedDone);
1343	+	await(immediateDone);
1344	+	}
1345	+	}
1346
1347		}

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