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

Comparing jsr166/src/test/tck/ScheduledExecutorTest.java (file contents):
Revision 1.18 by dl, Wed Jan 21 01:47:07 2004 UTC vs.
Revision 1.84 by jsr166, Mon Mar 20 00:34:27 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
5	<	* Other contributors include Andrew Wright, Jeffrey Hayes,
6	<	* Pat Fisher, Mike Judd.
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.*;
12	<	import java.util.concurrent.atomic.*;
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.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.ThreadPoolExecutor;
28	>	import java.util.concurrent.atomic.AtomicBoolean;
29	>	import java.util.concurrent.atomic.AtomicInteger;
30	>	import java.util.concurrent.atomic.AtomicLong;
31	>
32	>	import junit.framework.Test;
33	>	import junit.framework.TestSuite;
34
35		public class ScheduledExecutorTest extends JSR166TestCase {
36		public static void main(String[] args) {
37	<	junit.textui.TestRunner.run (suite());
37	>	main(suite(), args);
38		}
39		public static Test suite() {
40	<	return new TestSuite(ScheduledExecutorTest.class);
40	>	return new TestSuite(ScheduledExecutorTest.class);
41		}
42
22	–
43		/**
44		* execute successfully executes a runnable
45		*/
46	<	public void testExecute() {
47	<	try {
48	<	TrackedShortRunnable runnable =new TrackedShortRunnable();
49	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
50	<	p1.execute(runnable);
51	<	assertFalse(runnable.done);
52	<	Thread.sleep(SHORT_DELAY_MS);
53	<	try { p1.shutdown(); } catch(SecurityException ok) { return; }
34	<	try {
35	<	Thread.sleep(MEDIUM_DELAY_MS);
36	<	} catch(InterruptedException e){
37	<	unexpectedException();
38	<	}
39	<	assertTrue(runnable.done);
40	<	try { p1.shutdown(); } catch(SecurityException ok) { return; }
41	<	joinPool(p1);
46	>	public void testExecute() throws InterruptedException {
47	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
48	>	try (PoolCleaner cleaner = cleaner(p)) {
49	>	final CountDownLatch done = new CountDownLatch(1);
50	>	final Runnable task = new CheckedRunnable() {
51	>	public void realRun() { done.countDown(); }};
52	>	p.execute(task);
53	>	assertTrue(done.await(LONG_DELAY_MS, MILLISECONDS));
54		}
43	–	catch(Exception e){
44	–	unexpectedException();
45	–	}
46	–
55		}
56
49	–
57		/**
58		* delayed schedule of callable successfully executes after delay
59		*/
60	<	public void testSchedule1() {
61	<	try {
62	<	TrackedCallable callable = new TrackedCallable();
63	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
64	<	Future f = p1.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
65	<	assertFalse(callable.done);
66	<	Thread.sleep(MEDIUM_DELAY_MS);
67	<	assertTrue(callable.done);
68	<	assertEquals(Boolean.TRUE, f.get());
69	<	try { p1.shutdown(); } catch(SecurityException ok) { return; }
70	<	joinPool(p1);
71	<	} catch(RejectedExecutionException e){}
72	<	catch(Exception e){
73	<	e.printStackTrace();
74	<	unexpectedException();
60	>	public void testSchedule1() throws Exception {
61	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
62	>	try (PoolCleaner cleaner = cleaner(p)) {
63	>	final long startTime = System.nanoTime();
64	>	final CountDownLatch done = new CountDownLatch(1);
65	>	Callable task = new CheckedCallable<Boolean>() {
66	>	public Boolean realCall() {
67	>	done.countDown();
68	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
69	>	return Boolean.TRUE;
70	>	}};
71	>	Future f = p.schedule(task, timeoutMillis(), MILLISECONDS);
72	>	assertSame(Boolean.TRUE, f.get());
73	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
74	>	assertTrue(done.await(0L, MILLISECONDS));
75		}
76		}
77
78		/**
79	<	*  delayed schedule of runnable successfully executes after delay
80	<	*/
81	<	public void testSchedule3() {
82	<	try {
83	<	TrackedShortRunnable runnable = new TrackedShortRunnable();
84	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
85	<	p1.schedule(runnable, SMALL_DELAY_MS, TimeUnit.MILLISECONDS);
86	<	Thread.sleep(SHORT_DELAY_MS);
87	<	assertFalse(runnable.done);
88	<	Thread.sleep(MEDIUM_DELAY_MS);
89	<	assertTrue(runnable.done);
90	<	try { p1.shutdown(); } catch(SecurityException ok) { return; }
91	<	joinPool(p1);
92	<	} catch(Exception e){
93	<	unexpectedException();
79	>	* delayed schedule of runnable successfully executes after delay
80	>	*/
81	>	public void testSchedule3() throws Exception {
82	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
83	>	try (PoolCleaner cleaner = cleaner(p)) {
84	>	final long startTime = System.nanoTime();
85	>	final CountDownLatch done = new CountDownLatch(1);
86	>	Runnable task = new CheckedRunnable() {
87	>	public void realRun() {
88	>	done.countDown();
89	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
90	>	}};
91	>	Future f = p.schedule(task, timeoutMillis(), MILLISECONDS);
92	>	await(done);
93	>	assertNull(f.get(LONG_DELAY_MS, MILLISECONDS));
94	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
95		}
96		}
97	<
97	>
98		/**
99		* scheduleAtFixedRate executes runnable after given initial delay
100		*/
101	<	public void testSchedule4() {
102	<	try {
103	<	TrackedShortRunnable runnable = new TrackedShortRunnable();
104	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
105	<	ScheduledFuture h = p1.scheduleAtFixedRate(runnable, SHORT_DELAY_MS, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
106	<	assertFalse(runnable.done);
107	<	Thread.sleep(MEDIUM_DELAY_MS);
108	<	assertTrue(runnable.done);
109	<	h.cancel(true);
110	<	joinPool(p1);
111	<	} catch(Exception e){
112	<	unexpectedException();
101	>	public void testSchedule4() throws Exception {
102	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
103	>	try (PoolCleaner cleaner = cleaner(p)) {
104	>	final long startTime = System.nanoTime();
105	>	final CountDownLatch done = new CountDownLatch(1);
106	>	Runnable task = new CheckedRunnable() {
107	>	public void realRun() {
108	>	done.countDown();
109	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
110	>	}};
111	>	ScheduledFuture f =
112	>	p.scheduleAtFixedRate(task, timeoutMillis(),
113	>	LONG_DELAY_MS, MILLISECONDS);
114	>	await(done);
115	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
116	>	f.cancel(true);
117	>	}
118	>	}
119	>
120	>	/**
121	>	* scheduleWithFixedDelay executes runnable after given initial delay
122	>	*/
123	>	public void testSchedule5() throws Exception {
124	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
125	>	try (PoolCleaner cleaner = cleaner(p)) {
126	>	final long startTime = System.nanoTime();
127	>	final CountDownLatch done = new CountDownLatch(1);
128	>	Runnable task = new CheckedRunnable() {
129	>	public void realRun() {
130	>	done.countDown();
131	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
132	>	}};
133	>	ScheduledFuture f =
134	>	p.scheduleWithFixedDelay(task, timeoutMillis(),
135	>	LONG_DELAY_MS, MILLISECONDS);
136	>	await(done);
137	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
138	>	f.cancel(true);
139		}
140		}
141
#	Line 111 | Line 145 | public class ScheduledExecutorTest exten
145		}
146
147		/**
148	<	* scheduleWithFixedDelay executes runnable after given initial delay
149	<	*/
150	<	public void testSchedule5() {
151	<	try {
152	<	TrackedShortRunnable runnable = new TrackedShortRunnable();
153	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
154	<	ScheduledFuture h = p1.scheduleWithFixedDelay(runnable, SHORT_DELAY_MS, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
155	<	assertFalse(runnable.done);
156	<	Thread.sleep(MEDIUM_DELAY_MS);
157	<	assertTrue(runnable.done);
158	<	h.cancel(true);
159	<	joinPool(p1);
160	<	} catch(Exception e){
161	<	unexpectedException();
162	<	}
163	<	}
164	<
165	<	/**
166	<	* scheduleAtFixedRate executes series of tasks at given rate
167	<	*/
168	<	public void testFixedRateSequence() {
169	<	try {
170	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
171	<	RunnableCounter counter = new RunnableCounter();
172	<	ScheduledFuture h =
139	<	p1.scheduleAtFixedRate(counter, 0, 1, TimeUnit.MILLISECONDS);
140	<	Thread.sleep(SMALL_DELAY_MS);
141	<	h.cancel(true);
142	<	int c = counter.count.get();
143	<	// By time scaling conventions, we must have at least
144	<	// an execution per SHORT delay, but no more than one SHORT more
145	<	assertTrue(c >= SMALL_DELAY_MS / SHORT_DELAY_MS);
146	<	assertTrue(c <= SMALL_DELAY_MS + SHORT_DELAY_MS);
147	<	assertTrue(h.isDone());
148	<	joinPool(p1);
149	<	} catch(Exception e){
150	<	unexpectedException();
151	<	}
152	<	}
153	<
154	<	/**
155	<	* scheduleWithFixedDelay executes series of tasks with given period
156	<	*/
157	<	public void testFixedDelaySequence() {
158	<	try {
159	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
160	<	RunnableCounter counter = new RunnableCounter();
161	<	ScheduledFuture h =
162	<	p1.scheduleWithFixedDelay(counter, 0, 1, TimeUnit.MILLISECONDS);
163	<	Thread.sleep(SMALL_DELAY_MS);
164	<	h.cancel(true);
165	<	int c = counter.count.get();
166	<	assertTrue(c >= SMALL_DELAY_MS / SHORT_DELAY_MS);
167	<	assertTrue(c <= SMALL_DELAY_MS + SHORT_DELAY_MS);
168	<	assertTrue(h.isDone());
169	<	joinPool(p1);
170	<	} catch(Exception e){
171	<	unexpectedException();
148	>	* scheduleAtFixedRate executes series of tasks at given rate.
149	>	* Eventually, it must hold that:
150	>	*   cycles - 1 <= elapsedMillis/delay < cycles
151	>	*/
152	>	public void testFixedRateSequence() throws InterruptedException {
153	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
154	>	try (PoolCleaner cleaner = cleaner(p)) {
155	>	for (int delay = 1; delay <= LONG_DELAY_MS; delay *= 3) {
156	>	final long startTime = System.nanoTime();
157	>	final int cycles = 8;
158	>	final CountDownLatch done = new CountDownLatch(cycles);
159	>	final Runnable task = new CheckedRunnable() {
160	>	public void realRun() { done.countDown(); }};
161	>	final ScheduledFuture periodicTask =
162	>	p.scheduleAtFixedRate(task, 0, delay, MILLISECONDS);
163	>	final int totalDelayMillis = (cycles - 1) * delay;
164	>	await(done, totalDelayMillis + LONG_DELAY_MS);
165	>	periodicTask.cancel(true);
166	>	final long elapsedMillis = millisElapsedSince(startTime);
167	>	assertTrue(elapsedMillis >= totalDelayMillis);
168	>	if (elapsedMillis <= cycles * delay)
169	>	return;
170	>	// else retry with longer delay
171	>	}
172	>	fail("unexpected execution rate");
173		}
174		}
175
176	+	/**
177	+	* scheduleWithFixedDelay executes series of tasks with given period.
178	+	* Eventually, it must hold that each task starts at least delay and at
179	+	* most 2 * delay after the termination of the previous task.
180	+	*/
181	+	public void testFixedDelaySequence() throws InterruptedException {
182	+	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
183	+	try (PoolCleaner cleaner = cleaner(p)) {
184	+	for (int delay = 1; delay <= LONG_DELAY_MS; delay *= 3) {
185	+	final long startTime = System.nanoTime();
186	+	final AtomicLong previous = new AtomicLong(startTime);
187	+	final AtomicBoolean tryLongerDelay = new AtomicBoolean(false);
188	+	final int cycles = 8;
189	+	final CountDownLatch done = new CountDownLatch(cycles);
190	+	final int d = delay;
191	+	final Runnable task = new CheckedRunnable() {
192	+	public void realRun() {
193	+	long now = System.nanoTime();
194	+	long elapsedMillis
195	+	= NANOSECONDS.toMillis(now - previous.get());
196	+	if (done.getCount() == cycles) { // first execution
197	+	if (elapsedMillis >= d)
198	+	tryLongerDelay.set(true);
199	+	} else {
200	+	assertTrue(elapsedMillis >= d);
201	+	if (elapsedMillis >= 2 * d)
202	+	tryLongerDelay.set(true);
203	+	}
204	+	previous.set(now);
205	+	done.countDown();
206	+	}};
207	+	final ScheduledFuture periodicTask =
208	+	p.scheduleWithFixedDelay(task, 0, delay, MILLISECONDS);
209	+	final int totalDelayMillis = (cycles - 1) * delay;
210	+	await(done, totalDelayMillis + cycles * LONG_DELAY_MS);
211	+	periodicTask.cancel(true);
212	+	final long elapsedMillis = millisElapsedSince(startTime);
213	+	assertTrue(elapsedMillis >= totalDelayMillis);
214	+	if (!tryLongerDelay.get())
215	+	return;
216	+	// else retry with longer delay
217	+	}
218	+	fail("unexpected execution rate");
219	+	}
220	+	}
221
222		/**
223	<	*  execute (null) throws NPE
223	>	* execute(null) throws NPE
224		*/
225	<	public void testExecuteNull() {
226	<	ScheduledThreadPoolExecutor se = null;
227	<	try {
228	<	se = new ScheduledThreadPoolExecutor(1);
229	<	se.execute(null);
230	<	shouldThrow();
231	<	} catch(NullPointerException success){}
186	<	catch(Exception e){
187	<	unexpectedException();
225	>	public void testExecuteNull() throws InterruptedException {
226	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
227	>	try (PoolCleaner cleaner = cleaner(p)) {
228	>	try {
229	>	p.execute(null);
230	>	shouldThrow();
231	>	} catch (NullPointerException success) {}
232		}
189	–
190	–	joinPool(se);
233		}
234
235		/**
236	<	* schedule (null) throws NPE
236	>	* schedule(null) throws NPE
237		*/
238	<	public void testScheduleNull() {
239	<	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
240	<	try {
241	<	TrackedCallable callable = null;
242	<	Future f = se.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
243	<	shouldThrow();
244	<	} catch(NullPointerException success){}
245	<	catch(Exception e){
204	<	unexpectedException();
238	>	public void testScheduleNull() throws InterruptedException {
239	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
240	>	try (PoolCleaner cleaner = cleaner(p)) {
241	>	try {
242	>	TrackedCallable callable = null;
243	>	Future f = p.schedule(callable, SHORT_DELAY_MS, MILLISECONDS);
244	>	shouldThrow();
245	>	} catch (NullPointerException success) {}
246		}
206	–	joinPool(se);
247		}
248	<
248	>
249		/**
250		* execute throws RejectedExecutionException if shutdown
251		*/
252	<	public void testSchedule1_RejectedExecutionException() {
253	<	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
254	<	try {
255	<	se.shutdown();
256	<	se.schedule(new NoOpRunnable(),
257	<	MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
258	<	shouldThrow();
259	<	} catch(RejectedExecutionException success){
260	<	} catch (SecurityException ok) {
252	>	public void testSchedule1_RejectedExecutionException() throws InterruptedException {
253	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
254	>	try (PoolCleaner cleaner = cleaner(p)) {
255	>	try {
256	>	p.shutdown();
257	>	p.schedule(new NoOpRunnable(),
258	>	MEDIUM_DELAY_MS, MILLISECONDS);
259	>	shouldThrow();
260	>	} catch (RejectedExecutionException success) {
261	>	} catch (SecurityException ok) {}
262		}
222	–
223	–	joinPool(se);
224	–
263		}
264
265		/**
266		* schedule throws RejectedExecutionException if shutdown
267		*/
268	<	public void testSchedule2_RejectedExecutionException() {
269	<	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
270	<	try {
271	<	se.shutdown();
272	<	se.schedule(new NoOpCallable(),
273	<	MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
274	<	shouldThrow();
275	<	} catch(RejectedExecutionException success){
276	<	} catch (SecurityException ok) {
268	>	public void testSchedule2_RejectedExecutionException() throws InterruptedException {
269	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
270	>	try (PoolCleaner cleaner = cleaner(p)) {
271	>	try {
272	>	p.shutdown();
273	>	p.schedule(new NoOpCallable(),
274	>	MEDIUM_DELAY_MS, MILLISECONDS);
275	>	shouldThrow();
276	>	} catch (RejectedExecutionException success) {
277	>	} catch (SecurityException ok) {}
278		}
240	–	joinPool(se);
279		}
280
281		/**
282		* schedule callable throws RejectedExecutionException if shutdown
283		*/
284	<	public void testSchedule3_RejectedExecutionException() {
285	<	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
286	<	try {
287	<	se.shutdown();
288	<	se.schedule(new NoOpCallable(),
289	<	MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
290	<	shouldThrow();
291	<	} catch(RejectedExecutionException success){
292	<	} catch (SecurityException ok) {
284	>	public void testSchedule3_RejectedExecutionException() throws InterruptedException {
285	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
286	>	try (PoolCleaner cleaner = cleaner(p)) {
287	>	try {
288	>	p.shutdown();
289	>	p.schedule(new NoOpCallable(),
290	>	MEDIUM_DELAY_MS, MILLISECONDS);
291	>	shouldThrow();
292	>	} catch (RejectedExecutionException success) {
293	>	} catch (SecurityException ok) {}
294		}
256	–	joinPool(se);
295		}
296
297		/**
298	<	*  scheduleAtFixedRate throws RejectedExecutionException if shutdown
299	<	*/
300	<	public void testScheduleAtFixedRate1_RejectedExecutionException() {
301	<	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
302	<	try {
303	<	se.shutdown();
304	<	se.scheduleAtFixedRate(new NoOpRunnable(),
305	<	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
306	<	shouldThrow();
307	<	} catch(RejectedExecutionException success){
308	<	} catch (SecurityException ok) {
309	<	}
310	<	joinPool(se);
298	>	* scheduleAtFixedRate throws RejectedExecutionException if shutdown
299	>	*/
300	>	public void testScheduleAtFixedRate1_RejectedExecutionException() throws InterruptedException {
301	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
302	>	try (PoolCleaner cleaner = cleaner(p)) {
303	>	try {
304	>	p.shutdown();
305	>	p.scheduleAtFixedRate(new NoOpRunnable(),
306	>	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS);
307	>	shouldThrow();
308	>	} catch (RejectedExecutionException success) {
309	>	} catch (SecurityException ok) {}
310	>	}
311		}
312	<
312	>
313		/**
314		* scheduleWithFixedDelay throws RejectedExecutionException if shutdown
315		*/
316	<	public void testScheduleWithFixedDelay1_RejectedExecutionException() {
317	<	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
318	<	try {
319	<	se.shutdown();
320	<	se.scheduleWithFixedDelay(new NoOpRunnable(),
321	<	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
322	<	shouldThrow();
323	<	} catch(RejectedExecutionException success){
324	<	} catch (SecurityException ok) {
325	<	}
326	<	joinPool(se);
316	>	public void testScheduleWithFixedDelay1_RejectedExecutionException() throws InterruptedException {
317	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
318	>	try (PoolCleaner cleaner = cleaner(p)) {
319	>	try {
320	>	p.shutdown();
321	>	p.scheduleWithFixedDelay(new NoOpRunnable(),
322	>	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS);
323	>	shouldThrow();
324	>	} catch (RejectedExecutionException success) {
325	>	} catch (SecurityException ok) {}
326	>	}
327		}
328
329		/**
330	<	*  getActiveCount increases but doesn't overestimate, when a
331	<	*  thread becomes active
332	<	*/
333	<	public void testGetActiveCount() {
334	<	ScheduledThreadPoolExecutor p2 = new ScheduledThreadPoolExecutor(2);
335	<	assertEquals(0, p2.getActiveCount());
336	<	p2.execute(new SmallRunnable());
337	<	try {
338	<	Thread.sleep(SHORT_DELAY_MS);
339	<	} catch(Exception e){
340	<	unexpectedException();
341	<	}
342	<	assertEquals(1, p2.getActiveCount());
343	<	joinPool(p2);
344	<	}
345	<
346	<	/**
309	<	*    getCompletedTaskCount increases, but doesn't overestimate,
310	<	*   when tasks complete
311	<	*/
312	<	public void testGetCompletedTaskCount() {
313	<	ScheduledThreadPoolExecutor p2 = new ScheduledThreadPoolExecutor(2);
314	<	assertEquals(0, p2.getCompletedTaskCount());
315	<	p2.execute(new SmallRunnable());
316	<	try {
317	<	Thread.sleep(MEDIUM_DELAY_MS);
318	<	} catch(Exception e){
319	<	unexpectedException();
330	>	* getActiveCount increases but doesn't overestimate, when a
331	>	* thread becomes active
332	>	*/
333	>	public void testGetActiveCount() throws InterruptedException {
334	>	final CountDownLatch done = new CountDownLatch(1);
335	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(2);
336	>	try (PoolCleaner cleaner = cleaner(p, done)) {
337	>	final CountDownLatch threadStarted = new CountDownLatch(1);
338	>	assertEquals(0, p.getActiveCount());
339	>	p.execute(new CheckedRunnable() {
340	>	public void realRun() throws InterruptedException {
341	>	threadStarted.countDown();
342	>	assertEquals(1, p.getActiveCount());
343	>	await(done);
344	>	}});
345	>	await(threadStarted);
346	>	assertEquals(1, p.getActiveCount());
347		}
321	–	assertEquals(1, p2.getCompletedTaskCount());
322	–	joinPool(p2);
348		}
349	<
349	>
350		/**
351	<	*  getCorePoolSize returns size given in constructor if not otherwise set
352	<	*/
353	<	public void testGetCorePoolSize() {
354	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
355	<	assertEquals(1, p1.getCorePoolSize());
356	<	joinPool(p1);
351	>	* getCompletedTaskCount increases, but doesn't overestimate,
352	>	* when tasks complete
353	>	*/
354	>	public void testGetCompletedTaskCount() throws InterruptedException {
355	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(2);
356	>	try (PoolCleaner cleaner = cleaner(p)) {
357	>	final CountDownLatch threadStarted = new CountDownLatch(1);
358	>	final CountDownLatch threadProceed = new CountDownLatch(1);
359	>	final CountDownLatch threadDone = new CountDownLatch(1);
360	>	assertEquals(0, p.getCompletedTaskCount());
361	>	p.execute(new CheckedRunnable() {
362	>	public void realRun() throws InterruptedException {
363	>	threadStarted.countDown();
364	>	assertEquals(0, p.getCompletedTaskCount());
365	>	threadProceed.await();
366	>	threadDone.countDown();
367	>	}});
368	>	await(threadStarted);
369	>	assertEquals(0, p.getCompletedTaskCount());
370	>	threadProceed.countDown();
371	>	threadDone.await();
372	>	long startTime = System.nanoTime();
373	>	while (p.getCompletedTaskCount() != 1) {
374	>	if (millisElapsedSince(startTime) > LONG_DELAY_MS)
375	>	fail("timed out");
376	>	Thread.yield();
377	>	}
378	>	}
379		}
380	<
380	>
381		/**
382	<	*    getLargestPoolSize increases, but doesn't overestimate, when
336	<	*   multiple threads active
382	>	* getCorePoolSize returns size given in constructor if not otherwise set
383		*/
384	<	public void testGetLargestPoolSize() {
385	<	ScheduledThreadPoolExecutor p2 = new ScheduledThreadPoolExecutor(2);
386	<	assertEquals(0, p2.getLargestPoolSize());
387	<	p2.execute(new SmallRunnable());
388	<	p2.execute(new SmallRunnable());
389	<	try {
390	<	Thread.sleep(SHORT_DELAY_MS);
391	<	} catch(Exception e){
392	<	unexpectedException();
393	<	}
394	<	assertEquals(2, p2.getLargestPoolSize());
395	<	joinPool(p2);
396	<	}
397	<
398	<	/**
399	<	*   getPoolSize increases, but doesn't overestimate, when threads
400	<	*   become active
401	<	*/
402	<	public void testGetPoolSize() {
403	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
404	<	assertEquals(0, p1.getPoolSize());
405	<	p1.execute(new SmallRunnable());
406	<	assertEquals(1, p1.getPoolSize());
407	<	joinPool(p1);
408	<	}
409	<
410	<	/**
411	<	*    getTaskCount increases, but doesn't overestimate, when tasks
412	<	*    submitted
413	<	*/
414	<	public void testGetTaskCount() {
415	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
416	<	assertEquals(0, p1.getTaskCount());
417	<	for(int i = 0; i < 5; i++)
418	<	p1.execute(new SmallRunnable());
419	<	try {
420	<	Thread.sleep(SHORT_DELAY_MS);
421	<	} catch(Exception e){
422	<	unexpectedException();
384	>	public void testGetCorePoolSize() throws InterruptedException {
385	>	ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
386	>	try (PoolCleaner cleaner = cleaner(p)) {
387	>	assertEquals(1, p.getCorePoolSize());
388	>	}
389	>	}
390	>
391	>	/**
392	>	* getLargestPoolSize increases, but doesn't overestimate, when
393	>	* multiple threads active
394	>	*/
395	>	public void testGetLargestPoolSize() throws InterruptedException {
396	>	final int THREADS = 3;
397	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(THREADS);
398	>	final CountDownLatch threadsStarted = new CountDownLatch(THREADS);
399	>	final CountDownLatch done = new CountDownLatch(1);
400	>	try (PoolCleaner cleaner = cleaner(p, done)) {
401	>	assertEquals(0, p.getLargestPoolSize());
402	>	for (int i = 0; i < THREADS; i++)
403	>	p.execute(new CheckedRunnable() {
404	>	public void realRun() throws InterruptedException {
405	>	threadsStarted.countDown();
406	>	await(done);
407	>	assertEquals(THREADS, p.getLargestPoolSize());
408	>	}});
409	>	await(threadsStarted);
410	>	assertEquals(THREADS, p.getLargestPoolSize());
411	>	}
412	>	assertEquals(THREADS, p.getLargestPoolSize());
413	>	}
414	>
415	>	/**
416	>	* getPoolSize increases, but doesn't overestimate, when threads
417	>	* become active
418	>	*/
419	>	public void testGetPoolSize() throws InterruptedException {
420	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
421	>	final CountDownLatch threadStarted = new CountDownLatch(1);
422	>	final CountDownLatch done = new CountDownLatch(1);
423	>	try (PoolCleaner cleaner = cleaner(p, done)) {
424	>	assertEquals(0, p.getPoolSize());
425	>	p.execute(new CheckedRunnable() {
426	>	public void realRun() throws InterruptedException {
427	>	threadStarted.countDown();
428	>	assertEquals(1, p.getPoolSize());
429	>	await(done);
430	>	}});
431	>	await(threadStarted);
432	>	assertEquals(1, p.getPoolSize());
433	>	}
434	>	}
435	>
436	>	/**
437	>	* getTaskCount increases, but doesn't overestimate, when tasks
438	>	* submitted
439	>	*/
440	>	public void testGetTaskCount() throws InterruptedException {
441	>	final int TASKS = 3;
442	>	final CountDownLatch done = new CountDownLatch(1);
443	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
444	>	try (PoolCleaner cleaner = cleaner(p, done)) {
445	>	final CountDownLatch threadStarted = new CountDownLatch(1);
446	>	assertEquals(0, p.getTaskCount());
447	>	assertEquals(0, p.getCompletedTaskCount());
448	>	p.execute(new CheckedRunnable() {
449	>	public void realRun() throws InterruptedException {
450	>	threadStarted.countDown();
451	>	await(done);
452	>	}});
453	>	await(threadStarted);
454	>	assertEquals(1, p.getTaskCount());
455	>	assertEquals(0, p.getCompletedTaskCount());
456	>	for (int i = 0; i < TASKS; i++) {
457	>	assertEquals(1 + i, p.getTaskCount());
458	>	p.execute(new CheckedRunnable() {
459	>	public void realRun() throws InterruptedException {
460	>	threadStarted.countDown();
461	>	assertEquals(1 + TASKS, p.getTaskCount());
462	>	await(done);
463	>	}});
464	>	}
465	>	assertEquals(1 + TASKS, p.getTaskCount());
466	>	assertEquals(0, p.getCompletedTaskCount());
467		}
468	<	assertEquals(5, p1.getTaskCount());
469	<	joinPool(p1);
468	>	assertEquals(1 + TASKS, p.getTaskCount());
469	>	assertEquals(1 + TASKS, p.getCompletedTaskCount());
470		}
471
472	<	/**
472	>	/**
473		* getThreadFactory returns factory in constructor if not set
474		*/
475	<	public void testGetThreadFactory() {
476	<	ThreadFactory tf = new SimpleThreadFactory();
477	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1, tf);
478	<	assertSame(tf, p.getThreadFactory());
479	<	joinPool(p);
475	>	public void testGetThreadFactory() throws InterruptedException {
476	>	final ThreadFactory threadFactory = new SimpleThreadFactory();
477	>	final ScheduledThreadPoolExecutor p =
478	>	new ScheduledThreadPoolExecutor(1, threadFactory);
479	>	try (PoolCleaner cleaner = cleaner(p)) {
480	>	assertSame(threadFactory, p.getThreadFactory());
481	>	}
482		}
483
484	<	/**
484	>	/**
485		* setThreadFactory sets the thread factory returned by getThreadFactory
486		*/
487	<	public void testSetThreadFactory() {
488	<	ThreadFactory tf = new SimpleThreadFactory();
489	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
490	<	p.setThreadFactory(tf);
491	<	assertSame(tf, p.getThreadFactory());
492	<	joinPool(p);
487	>	public void testSetThreadFactory() throws InterruptedException {
488	>	ThreadFactory threadFactory = new SimpleThreadFactory();
489	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
490	>	try (PoolCleaner cleaner = cleaner(p)) {
491	>	p.setThreadFactory(threadFactory);
492	>	assertSame(threadFactory, p.getThreadFactory());
493	>	}
494		}
495
496	<	/**
496	>	/**
497		* setThreadFactory(null) throws NPE
498		*/
499	<	public void testSetThreadFactoryNull() {
500	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
501	<	try {
502	<	p.setThreadFactory(null);
503	<	shouldThrow();
504	<	} catch (NullPointerException success) {
505	<	} finally {
413	<	joinPool(p);
499	>	public void testSetThreadFactoryNull() throws InterruptedException {
500	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
501	>	try (PoolCleaner cleaner = cleaner(p)) {
502	>	try {
503	>	p.setThreadFactory(null);
504	>	shouldThrow();
505	>	} catch (NullPointerException success) {}
506		}
507		}
508	<
508	>
509		/**
510	<	*   is isShutDown is false before shutdown, true after
510	>	* isShutdown is false before shutdown, true after
511		*/
512		public void testIsShutdown() {
513	<
514	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
515	<	try {
516	<	assertFalse(p1.isShutdown());
513	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
514	>	assertFalse(p.isShutdown());
515	>	try (PoolCleaner cleaner = cleaner(p)) {
516	>	try {
517	>	p.shutdown();
518	>	assertTrue(p.isShutdown());
519	>	} catch (SecurityException ok) {}
520		}
426	–	finally {
427	–	try { p1.shutdown(); } catch(SecurityException ok) { return; }
428	–	}
429	–	assertTrue(p1.isShutdown());
521		}
522
432	–
523		/**
524	<	*   isTerminated is false before termination, true after
525	<	*/
526	<	public void testIsTerminated() {
527	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
528	<	try {
529	<	p1.execute(new SmallRunnable());
530	<	} finally {
531	<	try { p1.shutdown(); } catch(SecurityException ok) { return; }
524	>	* isTerminated is false before termination, true after
525	>	*/
526	>	public void testIsTerminated() throws InterruptedException {
527	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
528	>	try (PoolCleaner cleaner = cleaner(p)) {
529	>	final CountDownLatch threadStarted = new CountDownLatch(1);
530	>	final CountDownLatch done = new CountDownLatch(1);
531	>	assertFalse(p.isTerminated());
532	>	p.execute(new CheckedRunnable() {
533	>	public void realRun() throws InterruptedException {
534	>	assertFalse(p.isTerminated());
535	>	threadStarted.countDown();
536	>	await(done);
537	>	}});
538	>	await(threadStarted);
539	>	assertFalse(p.isTerminating());
540	>	done.countDown();
541	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
542	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
543	>	assertTrue(p.isTerminated());
544		}
443	–	try {
444	–	assertTrue(p1.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
445	–	assertTrue(p1.isTerminated());
446	–	} catch(Exception e){
447	–	unexpectedException();
448	–	}
545		}
546
547		/**
548	<	*  isTerminating is not true when running or when terminated
549	<	*/
550	<	public void testIsTerminating() {
551	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
552	<	assertFalse(p1.isTerminating());
553	<	try {
554	<	p1.execute(new SmallRunnable());
555	<	assertFalse(p1.isTerminating());
556	<	} finally {
557	<	try { p1.shutdown(); } catch(SecurityException ok) { return; }
548	>	* isTerminating is not true when running or when terminated
549	>	*/
550	>	public void testIsTerminating() throws InterruptedException {
551	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
552	>	final CountDownLatch threadStarted = new CountDownLatch(1);
553	>	final CountDownLatch done = new CountDownLatch(1);
554	>	try (PoolCleaner cleaner = cleaner(p)) {
555	>	assertFalse(p.isTerminating());
556	>	p.execute(new CheckedRunnable() {
557	>	public void realRun() throws InterruptedException {
558	>	assertFalse(p.isTerminating());
559	>	threadStarted.countDown();
560	>	await(done);
561	>	}});
562	>	await(threadStarted);
563	>	assertFalse(p.isTerminating());
564	>	done.countDown();
565	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
566	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
567	>	assertTrue(p.isTerminated());
568	>	assertFalse(p.isTerminating());
569		}
463	–	try {
464	–	assertTrue(p1.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
465	–	assertTrue(p1.isTerminated());
466	–	assertFalse(p1.isTerminating());
467	–	} catch(Exception e){
468	–	unexpectedException();
469	–	}
570		}
571
572		/**
573		* getQueue returns the work queue, which contains queued tasks
574		*/
575	<	public void testGetQueue() {
576	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
577	<	ScheduledFuture[] tasks = new ScheduledFuture[5];
578	<	for(int i = 0; i < 5; i++){
579	<	tasks[i] = p1.schedule(new SmallPossiblyInterruptedRunnable(), 1, TimeUnit.MILLISECONDS);
580	<	}
581	<	try {
582	<	Thread.sleep(SHORT_DELAY_MS);
583	<	BlockingQueue<Runnable> q = p1.getQueue();
584	<	assertTrue(q.contains(tasks[4]));
575	>	public void testGetQueue() throws InterruptedException {
576	>	final CountDownLatch done = new CountDownLatch(1);
577	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
578	>	try (PoolCleaner cleaner = cleaner(p, done)) {
579	>	final CountDownLatch threadStarted = new CountDownLatch(1);
580	>	ScheduledFuture[] tasks = new ScheduledFuture[5];
581	>	for (int i = 0; i < tasks.length; i++) {
582	>	Runnable r = new CheckedRunnable() {
583	>	public void realRun() throws InterruptedException {
584	>	threadStarted.countDown();
585	>	await(done);
586	>	}};
587	>	tasks[i] = p.schedule(r, 1, MILLISECONDS);
588	>	}
589	>	await(threadStarted);
590	>	BlockingQueue<Runnable> q = p.getQueue();
591	>	assertTrue(q.contains(tasks[tasks.length - 1]));
592		assertFalse(q.contains(tasks[0]));
486	–	} catch(Exception e) {
487	–	unexpectedException();
488	–	} finally {
489	–	joinPool(p1);
593		}
594		}
595
596		/**
597		* remove(task) removes queued task, and fails to remove active task
598		*/
599	<	public void testRemove() {
600	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
601	<	ScheduledFuture[] tasks = new ScheduledFuture[5];
602	<	for(int i = 0; i < 5; i++){
603	<	tasks[i] = p1.schedule(new SmallPossiblyInterruptedRunnable(), 1, TimeUnit.MILLISECONDS);
604	<	}
605	<	try {
606	<	Thread.sleep(SHORT_DELAY_MS);
607	<	BlockingQueue<Runnable> q = p1.getQueue();
608	<	assertFalse(p1.remove((Runnable)tasks[0]));
599	>	public void testRemove() throws InterruptedException {
600	>	final CountDownLatch done = new CountDownLatch(1);
601	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
602	>	try (PoolCleaner cleaner = cleaner(p, done)) {
603	>	ScheduledFuture[] tasks = new ScheduledFuture[5];
604	>	final CountDownLatch threadStarted = new CountDownLatch(1);
605	>	for (int i = 0; i < tasks.length; i++) {
606	>	Runnable r = new CheckedRunnable() {
607	>	public void realRun() throws InterruptedException {
608	>	threadStarted.countDown();
609	>	await(done);
610	>	}};
611	>	tasks[i] = p.schedule(r, 1, MILLISECONDS);
612	>	}
613	>	await(threadStarted);
614	>	BlockingQueue<Runnable> q = p.getQueue();
615	>	assertFalse(p.remove((Runnable)tasks[0]));
616		assertTrue(q.contains((Runnable)tasks[4]));
617		assertTrue(q.contains((Runnable)tasks[3]));
618	<	assertTrue(p1.remove((Runnable)tasks[4]));
619	<	assertFalse(p1.remove((Runnable)tasks[4]));
618	>	assertTrue(p.remove((Runnable)tasks[4]));
619	>	assertFalse(p.remove((Runnable)tasks[4]));
620		assertFalse(q.contains((Runnable)tasks[4]));
621		assertTrue(q.contains((Runnable)tasks[3]));
622	<	assertTrue(p1.remove((Runnable)tasks[3]));
622	>	assertTrue(p.remove((Runnable)tasks[3]));
623		assertFalse(q.contains((Runnable)tasks[3]));
514	–	} catch(Exception e) {
515	–	unexpectedException();
516	–	} finally {
517	–	joinPool(p1);
518	–	}
519	–	}
520	–
521	–	/**
522	–	*  purge removes cancelled tasks from the queue
523	–	*/
524	–	public void testPurge() {
525	–	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
526	–	ScheduledFuture[] tasks = new ScheduledFuture[5];
527	–	for(int i = 0; i < 5; i++){
528	–	tasks[i] = p1.schedule(new SmallPossiblyInterruptedRunnable(), 1, TimeUnit.MILLISECONDS);
624		}
530	–	int max = 5;
531	–	if (tasks[4].cancel(true)) --max;
532	–	if (tasks[3].cancel(true)) --max;
533	–	p1.purge();
534	–	long count = p1.getTaskCount();
535	–	assertTrue(count > 0 && count <= max);
536	–	joinPool(p1);
625		}
626
627		/**
628	<	*  shutDownNow returns a list containing tasks that were not run
628	>	* purge eventually removes cancelled tasks from the queue
629		*/
630	<	public void testShutDownNow() {
631	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
632	<	for(int i = 0; i < 5; i++)
633	<	p1.schedule(new SmallPossiblyInterruptedRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
634	<	List l;
635	<	try {
636	<	l = p1.shutdownNow();
637	<	} catch (SecurityException ok) {
638	<	return;
630	>	public void testPurge() throws InterruptedException {
631	>	final ScheduledFuture[] tasks = new ScheduledFuture[5];
632	>	final Runnable releaser = new Runnable() { public void run() {
633	>	for (ScheduledFuture task : tasks)
634	>	if (task != null) task.cancel(true); }};
635	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
636	>	try (PoolCleaner cleaner = cleaner(p, releaser)) {
637	>	for (int i = 0; i < tasks.length; i++)
638	>	tasks[i] = p.schedule(new SmallPossiblyInterruptedRunnable(),
639	>	LONG_DELAY_MS, MILLISECONDS);
640	>	int max = tasks.length;
641	>	if (tasks[4].cancel(true)) --max;
642	>	if (tasks[3].cancel(true)) --max;
643	>	// There must eventually be an interference-free point at
644	>	// which purge will not fail. (At worst, when queue is empty.)
645	>	long startTime = System.nanoTime();
646	>	do {
647	>	p.purge();
648	>	long count = p.getTaskCount();
649	>	if (count == max)
650	>	return;
651	>	} while (millisElapsedSince(startTime) < LONG_DELAY_MS);
652	>	fail("Purge failed to remove cancelled tasks");
653		}
552	–	assertTrue(p1.isShutdown());
553	–	assertTrue(l.size() > 0 && l.size() <= 5);
554	–	joinPool(p1);
654		}
655
656		/**
657	<	* In default setting, shutdown cancels periodic but not delayed
658	<	* tasks at shutdown
659	<	*/
660	<	public void testShutDown1() {
657	>	* shutdownNow returns a list containing tasks that were not run,
658	>	* and those tasks are drained from the queue
659	>	*/
660	>	public void testShutdownNow() throws InterruptedException {
661	>	final int poolSize = 2;
662	>	final int count = 5;
663	>	final AtomicInteger ran = new AtomicInteger(0);
664	>	final ScheduledThreadPoolExecutor p =
665	>	new ScheduledThreadPoolExecutor(poolSize);
666	>	final CountDownLatch threadsStarted = new CountDownLatch(poolSize);
667	>	Runnable waiter = new CheckedRunnable() { public void realRun() {
668	>	threadsStarted.countDown();
669	>	try {
670	>	MILLISECONDS.sleep(2 * LONG_DELAY_MS);
671	>	} catch (InterruptedException success) {}
672	>	ran.getAndIncrement();
673	>	}};
674	>	for (int i = 0; i < count; i++)
675	>	p.execute(waiter);
676	>	await(threadsStarted);
677	>	assertEquals(poolSize, p.getActiveCount());
678	>	assertEquals(0, p.getCompletedTaskCount());
679	>	final List<Runnable> queuedTasks;
680		try {
681	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
682	<	assertTrue(p1.getExecuteExistingDelayedTasksAfterShutdownPolicy());
683	<	assertFalse(p1.getContinueExistingPeriodicTasksAfterShutdownPolicy());
566	<
567	<	ScheduledFuture[] tasks = new ScheduledFuture[5];
568	<	for(int i = 0; i < 5; i++)
569	<	tasks[i] = p1.schedule(new NoOpRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
570	<	try { p1.shutdown(); } catch(SecurityException ok) { return; }
571	<	BlockingQueue q = p1.getQueue();
572	<	for (Iterator it = q.iterator(); it.hasNext();) {
573	<	ScheduledFuture t = (ScheduledFuture)it.next();
574	<	assertFalse(t.isCancelled());
575	<	}
576	<	assertTrue(p1.isShutdown());
577	<	Thread.sleep(SMALL_DELAY_MS);
578	<	for (int i = 0; i < 5; ++i) {
579	<	assertTrue(tasks[i].isDone());
580	<	assertFalse(tasks[i].isCancelled());
581	<	}
582	<
583	<	}
584	<	catch(Exception ex) {
585	<	unexpectedException();
586	<	}
587	<	}
588	<
589	<
590	<	/**
591	<	* If setExecuteExistingDelayedTasksAfterShutdownPolicy is false,
592	<	* delayed tasks are cancelled at shutdown
593	<	*/
594	<	public void testShutDown2() {
595	<	try {
596	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
597	<	p1.setExecuteExistingDelayedTasksAfterShutdownPolicy(false);
598	<	ScheduledFuture[] tasks = new ScheduledFuture[5];
599	<	for(int i = 0; i < 5; i++)
600	<	tasks[i] = p1.schedule(new NoOpRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
601	<	try { p1.shutdown(); } catch(SecurityException ok) { return; }
602	<	assertTrue(p1.isShutdown());
603	<	BlockingQueue q = p1.getQueue();
604	<	assertTrue(q.isEmpty());
605	<	Thread.sleep(SMALL_DELAY_MS);
606	<	assertTrue(p1.isTerminated());
607	<	}
608	<	catch(Exception ex) {
609	<	unexpectedException();
681	>	queuedTasks = p.shutdownNow();
682	>	} catch (SecurityException ok) {
683	>	return; // Allowed in case test doesn't have privs
684		}
685	+	assertTrue(p.isShutdown());
686	+	assertTrue(p.getQueue().isEmpty());
687	+	assertEquals(count - poolSize, queuedTasks.size());
688	+	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
689	+	assertTrue(p.isTerminated());
690	+	assertEquals(poolSize, ran.get());
691	+	assertEquals(poolSize, p.getCompletedTaskCount());
692		}
693
613	–
694		/**
695	<	* If setContinueExistingPeriodicTasksAfterShutdownPolicy is set false,
696	<	* periodic tasks are not cancelled at shutdown
697	<	*/
698	<	public void testShutDown3() {
695	>	* shutdownNow returns a list containing tasks that were not run,
696	>	* and those tasks are drained from the queue
697	>	*/
698	>	public void testShutdownNow_delayedTasks() throws InterruptedException {
699	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
700	>	List<ScheduledFuture> tasks = new ArrayList<>();
701	>	for (int i = 0; i < 3; i++) {
702	>	Runnable r = new NoOpRunnable();
703	>	tasks.add(p.schedule(r, 9, SECONDS));
704	>	tasks.add(p.scheduleAtFixedRate(r, 9, 9, SECONDS));
705	>	tasks.add(p.scheduleWithFixedDelay(r, 9, 9, SECONDS));
706	>	}
707	>	if (testImplementationDetails)
708	>	assertEquals(new HashSet(tasks), new HashSet(p.getQueue()));
709	>	final List<Runnable> queuedTasks;
710		try {
711	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
712	<	p1.setContinueExistingPeriodicTasksAfterShutdownPolicy(false);
713	<	ScheduledFuture task =
623	<	p1.scheduleAtFixedRate(new NoOpRunnable(), 5, 5, TimeUnit.MILLISECONDS);
624	<	try { p1.shutdown(); } catch(SecurityException ok) { return; }
625	<	assertTrue(p1.isShutdown());
626	<	BlockingQueue q = p1.getQueue();
627	<	assertTrue(q.isEmpty());
628	<	Thread.sleep(SHORT_DELAY_MS);
629	<	assertTrue(p1.isTerminated());
711	>	queuedTasks = p.shutdownNow();
712	>	} catch (SecurityException ok) {
713	>	return; // Allowed in case test doesn't have privs
714		}
715	<	catch(Exception ex) {
716	<	unexpectedException();
715	>	assertTrue(p.isShutdown());
716	>	assertTrue(p.getQueue().isEmpty());
717	>	if (testImplementationDetails)
718	>	assertEquals(new HashSet(tasks), new HashSet(queuedTasks));
719	>	assertEquals(tasks.size(), queuedTasks.size());
720	>	for (ScheduledFuture task : tasks) {
721	>	assertFalse(task.isDone());
722	>	assertFalse(task.isCancelled());
723		}
724	+	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
725	+	assertTrue(p.isTerminated());
726		}
727
728		/**
729	<	* if setContinueExistingPeriodicTasksAfterShutdownPolicy is true,
730	<	* periodic tasks are cancelled at shutdown
731	<	*/
732	<	public void testShutDown4() {
733	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
734	<	try {
735	<	p1.setContinueExistingPeriodicTasksAfterShutdownPolicy(true);
736	<	ScheduledFuture task =
737	<	p1.scheduleAtFixedRate(new NoOpRunnable(), 1, 1, TimeUnit.MILLISECONDS);
738	<	assertFalse(task.isCancelled());
739	<	try { p1.shutdown(); } catch(SecurityException ok) { return; }
740	<	assertFalse(task.isCancelled());
741	<	assertFalse(p1.isTerminated());
742	<	assertTrue(p1.isShutdown());
743	<	Thread.sleep(SHORT_DELAY_MS);
744	<	assertFalse(task.isCancelled());
745	<	assertTrue(task.cancel(true));
746	<	assertTrue(task.isDone());
747	<	Thread.sleep(SHORT_DELAY_MS);
748	<	assertTrue(p1.isTerminated());
749	<	}
750	<	catch(Exception ex) {
751	<	unexpectedException();
729	>	* By default, periodic tasks are cancelled at shutdown.
730	>	* By default, delayed tasks keep running after shutdown.
731	>	* Check that changing the default values work:
732	>	* - setExecuteExistingDelayedTasksAfterShutdownPolicy
733	>	* - setContinueExistingPeriodicTasksAfterShutdownPolicy
734	>	*/
735	>	public void testShutdown_cancellation() throws Exception {
736	>	Boolean[] allBooleans = { null, Boolean.FALSE, Boolean.TRUE };
737	>	for (Boolean policy : allBooleans)
738	>	{
739	>	final int poolSize = 2;
740	>	final ScheduledThreadPoolExecutor p
741	>	= new ScheduledThreadPoolExecutor(poolSize);
742	>	final boolean effectiveDelayedPolicy = (policy != Boolean.FALSE);
743	>	final boolean effectivePeriodicPolicy = (policy == Boolean.TRUE);
744	>	final boolean effectiveRemovePolicy = (policy == Boolean.TRUE);
745	>	if (policy != null) {
746	>	p.setExecuteExistingDelayedTasksAfterShutdownPolicy(policy);
747	>	p.setContinueExistingPeriodicTasksAfterShutdownPolicy(policy);
748	>	p.setRemoveOnCancelPolicy(policy);
749	>	}
750	>	assertEquals(effectiveDelayedPolicy,
751	>	p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
752	>	assertEquals(effectivePeriodicPolicy,
753	>	p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
754	>	assertEquals(effectiveRemovePolicy,
755	>	p.getRemoveOnCancelPolicy());
756	>	// Strategy: Wedge the pool with poolSize "blocker" threads
757	>	final AtomicInteger ran = new AtomicInteger(0);
758	>	final CountDownLatch poolBlocked = new CountDownLatch(poolSize);
759	>	final CountDownLatch unblock = new CountDownLatch(1);
760	>	final CountDownLatch periodicLatch1 = new CountDownLatch(2);
761	>	final CountDownLatch periodicLatch2 = new CountDownLatch(2);
762	>	Runnable task = new CheckedRunnable() { public void realRun()
763	>	throws InterruptedException {
764	>	poolBlocked.countDown();
765	>	assertTrue(unblock.await(LONG_DELAY_MS, MILLISECONDS));
766	>	ran.getAndIncrement();
767	>	}};
768	>	List<Future<?>> blockers = new ArrayList<>();
769	>	List<Future<?>> periodics = new ArrayList<>();
770	>	List<Future<?>> delayeds = new ArrayList<>();
771	>	for (int i = 0; i < poolSize; i++)
772	>	blockers.add(p.submit(task));
773	>	assertTrue(poolBlocked.await(LONG_DELAY_MS, MILLISECONDS));
774	>
775	>	periodics.add(p.scheduleAtFixedRate(countDowner(periodicLatch1),
776	>	1, 1, MILLISECONDS));
777	>	periodics.add(p.scheduleWithFixedDelay(countDowner(periodicLatch2),
778	>	1, 1, MILLISECONDS));
779	>	delayeds.add(p.schedule(task, 1, MILLISECONDS));
780	>
781	>	assertTrue(p.getQueue().containsAll(periodics));
782	>	assertTrue(p.getQueue().containsAll(delayeds));
783	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
784	>	assertTrue(p.isShutdown());
785	>	assertFalse(p.isTerminated());
786	>	for (Future<?> periodic : periodics) {
787	>	assertTrue(effectivePeriodicPolicy ^ periodic.isCancelled());
788	>	assertTrue(effectivePeriodicPolicy ^ periodic.isDone());
789	>	}
790	>	for (Future<?> delayed : delayeds) {
791	>	assertTrue(effectiveDelayedPolicy ^ delayed.isCancelled());
792	>	assertTrue(effectiveDelayedPolicy ^ delayed.isDone());
793	>	}
794	>	if (testImplementationDetails) {
795	>	assertEquals(effectivePeriodicPolicy,
796	>	p.getQueue().containsAll(periodics));
797	>	assertEquals(effectiveDelayedPolicy,
798	>	p.getQueue().containsAll(delayeds));
799	>	}
800	>	// Release all pool threads
801	>	unblock.countDown();
802	>
803	>	for (Future<?> delayed : delayeds) {
804	>	if (effectiveDelayedPolicy) {
805	>	assertNull(delayed.get());
806	>	}
807		}
808	<	finally {
809	<	joinPool(p1);
808	>	if (effectivePeriodicPolicy) {
809	>	assertTrue(periodicLatch1.await(LONG_DELAY_MS, MILLISECONDS));
810	>	assertTrue(periodicLatch2.await(LONG_DELAY_MS, MILLISECONDS));
811	>	for (Future<?> periodic : periodics) {
812	>	assertTrue(periodic.cancel(false));
813	>	assertTrue(periodic.isCancelled());
814	>	assertTrue(periodic.isDone());
815	>	}
816		}
817	<	}
817	>	for (Future<?> blocker : blockers) assertNull(blocker.get());
818	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
819	>	assertTrue(p.isTerminated());
820	>	assertEquals(2 + (effectiveDelayedPolicy ? 1 : 0), ran.get());
821	>	}}
822
823		/**
824		* completed submit of callable returns result
825		*/
826	<	public void testSubmitCallable() {
827	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
828	<	try {
826	>	public void testSubmitCallable() throws Exception {
827	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
828	>	try (PoolCleaner cleaner = cleaner(e)) {
829		Future<String> future = e.submit(new StringTask());
830		String result = future.get();
831		assertSame(TEST_STRING, result);
832		}
676	–	catch (ExecutionException ex) {
677	–	unexpectedException();
678	–	}
679	–	catch (InterruptedException ex) {
680	–	unexpectedException();
681	–	} finally {
682	–	joinPool(e);
683	–	}
833		}
834
835		/**
836		* completed submit of runnable returns successfully
837		*/
838	<	public void testSubmitRunnable() {
839	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
840	<	try {
838	>	public void testSubmitRunnable() throws Exception {
839	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
840	>	try (PoolCleaner cleaner = cleaner(e)) {
841		Future<?> future = e.submit(new NoOpRunnable());
842		future.get();
843		assertTrue(future.isDone());
844		}
696	–	catch (ExecutionException ex) {
697	–	unexpectedException();
698	–	}
699	–	catch (InterruptedException ex) {
700	–	unexpectedException();
701	–	} finally {
702	–	joinPool(e);
703	–	}
845		}
846
847		/**
848		* completed submit of (runnable, result) returns result
849		*/
850	<	public void testSubmitRunnable2() {
851	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
852	<	try {
850	>	public void testSubmitRunnable2() throws Exception {
851	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
852	>	try (PoolCleaner cleaner = cleaner(e)) {
853		Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING);
854		String result = future.get();
855		assertSame(TEST_STRING, result);
856		}
716	–	catch (ExecutionException ex) {
717	–	unexpectedException();
718	–	}
719	–	catch (InterruptedException ex) {
720	–	unexpectedException();
721	–	} finally {
722	–	joinPool(e);
723	–	}
857		}
858
859		/**
860		* invokeAny(null) throws NPE
861		*/
862	<	public void testInvokeAny1() {
863	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
864	<	try {
865	<	e.invokeAny(null);
866	<	} catch (NullPointerException success) {
867	<	} catch(Exception ex) {
868	<	unexpectedException();
736	<	} finally {
737	<	joinPool(e);
862	>	public void testInvokeAny1() throws Exception {
863	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
864	>	try (PoolCleaner cleaner = cleaner(e)) {
865	>	try {
866	>	e.invokeAny(null);
867	>	shouldThrow();
868	>	} catch (NullPointerException success) {}
869		}
870		}
871
872		/**
873		* invokeAny(empty collection) throws IAE
874		*/
875	<	public void testInvokeAny2() {
876	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
877	<	try {
878	<	e.invokeAny(new ArrayList<Callable<String>>());
879	<	} catch (IllegalArgumentException success) {
880	<	} catch(Exception ex) {
881	<	unexpectedException();
751	<	} finally {
752	<	joinPool(e);
875	>	public void testInvokeAny2() throws Exception {
876	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
877	>	try (PoolCleaner cleaner = cleaner(e)) {
878	>	try {
879	>	e.invokeAny(new ArrayList<Callable<String>>());
880	>	shouldThrow();
881	>	} catch (IllegalArgumentException success) {}
882		}
883		}
884
885		/**
886		* invokeAny(c) throws NPE if c has null elements
887		*/
888	<	public void testInvokeAny3() {
889	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
890	<	try {
891	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
892	<	l.add(new StringTask());
888	>	public void testInvokeAny3() throws Exception {
889	>	CountDownLatch latch = new CountDownLatch(1);
890	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
891	>	try (PoolCleaner cleaner = cleaner(e)) {
892	>	List<Callable<String>> l = new ArrayList<>();
893	>	l.add(latchAwaitingStringTask(latch));
894		l.add(null);
895	<	e.invokeAny(l);
896	<	} catch (NullPointerException success) {
897	<	} catch(Exception ex) {
898	<	unexpectedException();
899	<	} finally {
770	<	joinPool(e);
895	>	try {
896	>	e.invokeAny(l);
897	>	shouldThrow();
898	>	} catch (NullPointerException success) {}
899	>	latch.countDown();
900		}
901		}
902
903		/**
904		* invokeAny(c) throws ExecutionException if no task completes
905		*/
906	<	public void testInvokeAny4() {
907	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
908	<	try {
909	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
906	>	public void testInvokeAny4() throws Exception {
907	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
908	>	try (PoolCleaner cleaner = cleaner(e)) {
909	>	List<Callable<String>> l = new ArrayList<>();
910		l.add(new NPETask());
911	<	e.invokeAny(l);
912	<	} catch (ExecutionException success) {
913	<	} catch(Exception ex) {
914	<	unexpectedException();
915	<	} finally {
916	<	joinPool(e);
911	>	try {
912	>	e.invokeAny(l);
913	>	shouldThrow();
914	>	} catch (ExecutionException success) {
915	>	assertTrue(success.getCause() instanceof NullPointerException);
916	>	}
917		}
918		}
919
920		/**
921		* invokeAny(c) returns result of some task
922		*/
923	<	public void testInvokeAny5() {
924	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
925	<	try {
926	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
923	>	public void testInvokeAny5() throws Exception {
924	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
925	>	try (PoolCleaner cleaner = cleaner(e)) {
926	>	List<Callable<String>> l = new ArrayList<>();
927		l.add(new StringTask());
928		l.add(new StringTask());
929		String result = e.invokeAny(l);
930		assertSame(TEST_STRING, result);
802	–	} catch (ExecutionException success) {
803	–	} catch(Exception ex) {
804	–	unexpectedException();
805	–	} finally {
806	–	joinPool(e);
931		}
932		}
933
934		/**
935		* invokeAll(null) throws NPE
936		*/
937	<	public void testInvokeAll1() {
938	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
939	<	try {
940	<	e.invokeAll(null);
941	<	} catch (NullPointerException success) {
942	<	} catch(Exception ex) {
943	<	unexpectedException();
820	<	} finally {
821	<	joinPool(e);
937	>	public void testInvokeAll1() throws Exception {
938	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
939	>	try (PoolCleaner cleaner = cleaner(e)) {
940	>	try {
941	>	e.invokeAll(null);
942	>	shouldThrow();
943	>	} catch (NullPointerException success) {}
944		}
945		}
946
947		/**
948		* invokeAll(empty collection) returns empty collection
949		*/
950	<	public void testInvokeAll2() {
951	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
952	<	try {
950	>	public void testInvokeAll2() throws Exception {
951	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
952	>	try (PoolCleaner cleaner = cleaner(e)) {
953		List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>());
954		assertTrue(r.isEmpty());
833	–	} catch(Exception ex) {
834	–	unexpectedException();
835	–	} finally {
836	–	joinPool(e);
955		}
956		}
957
958		/**
959		* invokeAll(c) throws NPE if c has null elements
960		*/
961	<	public void testInvokeAll3() {
962	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
963	<	try {
964	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
961	>	public void testInvokeAll3() throws Exception {
962	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
963	>	try (PoolCleaner cleaner = cleaner(e)) {
964	>	List<Callable<String>> l = new ArrayList<>();
965		l.add(new StringTask());
966		l.add(null);
967	<	e.invokeAll(l);
968	<	} catch (NullPointerException success) {
969	<	} catch(Exception ex) {
970	<	unexpectedException();
853	<	} finally {
854	<	joinPool(e);
967	>	try {
968	>	e.invokeAll(l);
969	>	shouldThrow();
970	>	} catch (NullPointerException success) {}
971		}
972		}
973
974		/**
975		* get of invokeAll(c) throws exception on failed task
976		*/
977	<	public void testInvokeAll4() {
978	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
979	<	try {
980	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
977	>	public void testInvokeAll4() throws Exception {
978	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
979	>	try (PoolCleaner cleaner = cleaner(e)) {
980	>	List<Callable<String>> l = new ArrayList<>();
981		l.add(new NPETask());
982	<	List<Future<String>> result = e.invokeAll(l);
983	<	assertEquals(1, result.size());
984	<	for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
985	<	it.next().get();
986	<	} catch(ExecutionException success) {
987	<	} catch(Exception ex) {
988	<	unexpectedException();
989	<	} finally {
874	<	joinPool(e);
982	>	List<Future<String>> futures = e.invokeAll(l);
983	>	assertEquals(1, futures.size());
984	>	try {
985	>	futures.get(0).get();
986	>	shouldThrow();
987	>	} catch (ExecutionException success) {
988	>	assertTrue(success.getCause() instanceof NullPointerException);
989	>	}
990		}
991		}
992
993		/**
994		* invokeAll(c) returns results of all completed tasks
995		*/
996	<	public void testInvokeAll5() {
997	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
998	<	try {
999	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
996	>	public void testInvokeAll5() throws Exception {
997	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
998	>	try (PoolCleaner cleaner = cleaner(e)) {
999	>	List<Callable<String>> l = new ArrayList<>();
1000		l.add(new StringTask());
1001		l.add(new StringTask());
1002	<	List<Future<String>> result = e.invokeAll(l);
1003	<	assertEquals(2, result.size());
1004	<	for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
1005	<	assertSame(TEST_STRING, it.next().get());
891	<	} catch (ExecutionException success) {
892	<	} catch(Exception ex) {
893	<	unexpectedException();
894	<	} finally {
895	<	joinPool(e);
1002	>	List<Future<String>> futures = e.invokeAll(l);
1003	>	assertEquals(2, futures.size());
1004	>	for (Future<String> future : futures)
1005	>	assertSame(TEST_STRING, future.get());
1006		}
1007		}
1008
1009		/**
1010		* timed invokeAny(null) throws NPE
1011		*/
1012	<	public void testTimedInvokeAny1() {
1013	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1014	<	try {
1015	<	e.invokeAny(null, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1016	<	} catch (NullPointerException success) {
1017	<	} catch(Exception ex) {
1018	<	unexpectedException();
909	<	} finally {
910	<	joinPool(e);
1012	>	public void testTimedInvokeAny1() throws Exception {
1013	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1014	>	try (PoolCleaner cleaner = cleaner(e)) {
1015	>	try {
1016	>	e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS);
1017	>	shouldThrow();
1018	>	} catch (NullPointerException success) {}
1019		}
1020		}
1021
1022		/**
1023		* timed invokeAny(,,null) throws NPE
1024		*/
1025	<	public void testTimedInvokeAnyNullTimeUnit() {
1026	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1027	<	try {
1028	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1025	>	public void testTimedInvokeAnyNullTimeUnit() throws Exception {
1026	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1027	>	try (PoolCleaner cleaner = cleaner(e)) {
1028	>	List<Callable<String>> l = new ArrayList<>();
1029		l.add(new StringTask());
1030	<	e.invokeAny(l, MEDIUM_DELAY_MS, null);
1031	<	} catch (NullPointerException success) {
1032	<	} catch(Exception ex) {
1033	<	unexpectedException();
926	<	} finally {
927	<	joinPool(e);
1030	>	try {
1031	>	e.invokeAny(l, MEDIUM_DELAY_MS, null);
1032	>	shouldThrow();
1033	>	} catch (NullPointerException success) {}
1034		}
1035		}
1036
1037		/**
1038		* timed invokeAny(empty collection) throws IAE
1039		*/
1040	<	public void testTimedInvokeAny2() {
1041	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1042	<	try {
1043	<	e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1044	<	} catch (IllegalArgumentException success) {
1045	<	} catch(Exception ex) {
1046	<	unexpectedException();
941	<	} finally {
942	<	joinPool(e);
1040	>	public void testTimedInvokeAny2() throws Exception {
1041	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1042	>	try (PoolCleaner cleaner = cleaner(e)) {
1043	>	try {
1044	>	e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
1045	>	shouldThrow();
1046	>	} catch (IllegalArgumentException success) {}
1047		}
1048		}
1049
1050		/**
1051		* timed invokeAny(c) throws NPE if c has null elements
1052		*/
1053	<	public void testTimedInvokeAny3() {
1054	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1055	<	try {
1056	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1057	<	l.add(new StringTask());
1053	>	public void testTimedInvokeAny3() throws Exception {
1054	>	CountDownLatch latch = new CountDownLatch(1);
1055	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1056	>	try (PoolCleaner cleaner = cleaner(e)) {
1057	>	List<Callable<String>> l = new ArrayList<>();
1058	>	l.add(latchAwaitingStringTask(latch));
1059		l.add(null);
1060	<	e.invokeAny(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1061	<	} catch (NullPointerException success) {
1062	<	} catch(Exception ex) {
1063	<	ex.printStackTrace();
1064	<	unexpectedException();
960	<	} finally {
961	<	joinPool(e);
1060	>	try {
1061	>	e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1062	>	shouldThrow();
1063	>	} catch (NullPointerException success) {}
1064	>	latch.countDown();
1065		}
1066		}
1067
1068		/**
1069		* timed invokeAny(c) throws ExecutionException if no task completes
1070		*/
1071	<	public void testTimedInvokeAny4() {
1072	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1073	<	try {
1074	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1071	>	public void testTimedInvokeAny4() throws Exception {
1072	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1073	>	try (PoolCleaner cleaner = cleaner(e)) {
1074	>	long startTime = System.nanoTime();
1075	>	List<Callable<String>> l = new ArrayList<>();
1076		l.add(new NPETask());
1077	<	e.invokeAny(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1078	<	} catch(ExecutionException success) {
1079	<	} catch(Exception ex) {
1080	<	unexpectedException();
1081	<	} finally {
1082	<	joinPool(e);
1077	>	try {
1078	>	e.invokeAny(l, LONG_DELAY_MS, MILLISECONDS);
1079	>	shouldThrow();
1080	>	} catch (ExecutionException success) {
1081	>	assertTrue(success.getCause() instanceof NullPointerException);
1082	>	}
1083	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1084		}
1085		}
1086
1087		/**
1088		* timed invokeAny(c) returns result of some task
1089		*/
1090	<	public void testTimedInvokeAny5() {
1091	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1092	<	try {
1093	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1090	>	public void testTimedInvokeAny5() throws Exception {
1091	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1092	>	try (PoolCleaner cleaner = cleaner(e)) {
1093	>	long startTime = System.nanoTime();
1094	>	List<Callable<String>> l = new ArrayList<>();
1095		l.add(new StringTask());
1096		l.add(new StringTask());
1097	<	String result = e.invokeAny(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1097	>	String result = e.invokeAny(l, LONG_DELAY_MS, MILLISECONDS);
1098		assertSame(TEST_STRING, result);
1099	<	} catch (ExecutionException success) {
994	<	} catch(Exception ex) {
995	<	unexpectedException();
996	<	} finally {
997	<	joinPool(e);
1099	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1100		}
1101		}
1102
1103		/**
1104		* timed invokeAll(null) throws NPE
1105		*/
1106	<	public void testTimedInvokeAll1() {
1107	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1108	<	try {
1109	<	e.invokeAll(null, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1110	<	} catch (NullPointerException success) {
1111	<	} catch(Exception ex) {
1112	<	unexpectedException();
1011	<	} finally {
1012	<	joinPool(e);
1106	>	public void testTimedInvokeAll1() throws Exception {
1107	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1108	>	try (PoolCleaner cleaner = cleaner(e)) {
1109	>	try {
1110	>	e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS);
1111	>	shouldThrow();
1112	>	} catch (NullPointerException success) {}
1113		}
1114		}
1115
1116		/**
1117		* timed invokeAll(,,null) throws NPE
1118		*/
1119	<	public void testTimedInvokeAllNullTimeUnit() {
1120	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1121	<	try {
1122	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1119	>	public void testTimedInvokeAllNullTimeUnit() throws Exception {
1120	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1121	>	try (PoolCleaner cleaner = cleaner(e)) {
1122	>	List<Callable<String>> l = new ArrayList<>();
1123		l.add(new StringTask());
1124	<	e.invokeAll(l, MEDIUM_DELAY_MS, null);
1125	<	} catch (NullPointerException success) {
1126	<	} catch(Exception ex) {
1127	<	unexpectedException();
1028	<	} finally {
1029	<	joinPool(e);
1124	>	try {
1125	>	e.invokeAll(l, MEDIUM_DELAY_MS, null);
1126	>	shouldThrow();
1127	>	} catch (NullPointerException success) {}
1128		}
1129		}
1130
1131		/**
1132		* timed invokeAll(empty collection) returns empty collection
1133		*/
1134	<	public void testTimedInvokeAll2() {
1135	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1136	<	try {
1137	<	List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1134	>	public void testTimedInvokeAll2() throws Exception {
1135	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1136	>	try (PoolCleaner cleaner = cleaner(e)) {
1137	>	List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(),
1138	>	MEDIUM_DELAY_MS, MILLISECONDS);
1139		assertTrue(r.isEmpty());
1041	–	} catch(Exception ex) {
1042	–	unexpectedException();
1043	–	} finally {
1044	–	joinPool(e);
1140		}
1141		}
1142
1143		/**
1144		* timed invokeAll(c) throws NPE if c has null elements
1145		*/
1146	<	public void testTimedInvokeAll3() {
1147	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1148	<	try {
1149	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1146	>	public void testTimedInvokeAll3() throws Exception {
1147	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1148	>	try (PoolCleaner cleaner = cleaner(e)) {
1149	>	List<Callable<String>> l = new ArrayList<>();
1150		l.add(new StringTask());
1151		l.add(null);
1152	<	e.invokeAll(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1153	<	} catch (NullPointerException success) {
1154	<	} catch(Exception ex) {
1155	<	unexpectedException();
1061	<	} finally {
1062	<	joinPool(e);
1152	>	try {
1153	>	e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1154	>	shouldThrow();
1155	>	} catch (NullPointerException success) {}
1156		}
1157		}
1158
1159		/**
1160		* get of element of invokeAll(c) throws exception on failed task
1161		*/
1162	<	public void testTimedInvokeAll4() {
1163	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1164	<	try {
1165	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1162	>	public void testTimedInvokeAll4() throws Exception {
1163	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1164	>	try (PoolCleaner cleaner = cleaner(e)) {
1165	>	List<Callable<String>> l = new ArrayList<>();
1166		l.add(new NPETask());
1167	<	List<Future<String>> result = e.invokeAll(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1168	<	assertEquals(1, result.size());
1169	<	for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
1170	<	it.next().get();
1171	<	} catch(ExecutionException success) {
1172	<	} catch(Exception ex) {
1173	<	unexpectedException();
1174	<	} finally {
1175	<	joinPool(e);
1167	>	List<Future<String>> futures =
1168	>	e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS);
1169	>	assertEquals(1, futures.size());
1170	>	try {
1171	>	futures.get(0).get();
1172	>	shouldThrow();
1173	>	} catch (ExecutionException success) {
1174	>	assertTrue(success.getCause() instanceof NullPointerException);
1175	>	}
1176		}
1177		}
1178
1179		/**
1180		* timed invokeAll(c) returns results of all completed tasks
1181		*/
1182	<	public void testTimedInvokeAll5() {
1183	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1184	<	try {
1185	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1182	>	public void testTimedInvokeAll5() throws Exception {
1183	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1184	>	try (PoolCleaner cleaner = cleaner(e)) {
1185	>	List<Callable<String>> l = new ArrayList<>();
1186		l.add(new StringTask());
1187		l.add(new StringTask());
1188	<	List<Future<String>> result = e.invokeAll(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1189	<	assertEquals(2, result.size());
1190	<	for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
1191	<	assertSame(TEST_STRING, it.next().get());
1192	<	} catch (ExecutionException success) {
1100	<	} catch(Exception ex) {
1101	<	unexpectedException();
1102	<	} finally {
1103	<	joinPool(e);
1188	>	List<Future<String>> futures =
1189	>	e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS);
1190	>	assertEquals(2, futures.size());
1191	>	for (Future<String> future : futures)
1192	>	assertSame(TEST_STRING, future.get());
1193		}
1194		}
1195
1196		/**
1197		* timed invokeAll(c) cancels tasks not completed by timeout
1198		*/
1199	<	public void testTimedInvokeAll6() {
1200	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1201	<	try {
1202	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1203	<	l.add(new StringTask());
1204	<	l.add(Executors.callable(new MediumPossiblyInterruptedRunnable(), TEST_STRING));
1205	<	l.add(new StringTask());
1206	<	List<Future<String>> result = e.invokeAll(l, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
1207	<	assertEquals(3, result.size());
1208	<	Iterator<Future<String>> it = result.iterator();
1209	<	Future<String> f1 = it.next();
1210	<	Future<String> f2 = it.next();
1211	<	Future<String> f3 = it.next();
1212	<	assertTrue(f1.isDone());
1213	<	assertTrue(f2.isDone());
1214	<	assertTrue(f3.isDone());
1215	<	assertFalse(f1.isCancelled());
1216	<	assertTrue(f2.isCancelled());
1217	<	} catch(Exception ex) {
1218	<	unexpectedException();
1219	<	} finally {
1220	<	joinPool(e);
1199	>	public void testTimedInvokeAll6() throws Exception {
1200	>	for (long timeout = timeoutMillis();;) {
1201	>	final CountDownLatch done = new CountDownLatch(1);
1202	>	final Callable<String> waiter = new CheckedCallable<String>() {
1203	>	public String realCall() {
1204	>	try { done.await(LONG_DELAY_MS, MILLISECONDS); }
1205	>	catch (InterruptedException ok) {}
1206	>	return "1"; }};
1207	>	final ExecutorService p = new ScheduledThreadPoolExecutor(2);
1208	>	try (PoolCleaner cleaner = cleaner(p, done)) {
1209	>	List<Callable<String>> tasks = new ArrayList<>();
1210	>	tasks.add(new StringTask("0"));
1211	>	tasks.add(waiter);
1212	>	tasks.add(new StringTask("2"));
1213	>	long startTime = System.nanoTime();
1214	>	List<Future<String>> futures =
1215	>	p.invokeAll(tasks, timeout, MILLISECONDS);
1216	>	assertEquals(tasks.size(), futures.size());
1217	>	assertTrue(millisElapsedSince(startTime) >= timeout);
1218	>	for (Future future : futures)
1219	>	assertTrue(future.isDone());
1220	>	assertTrue(futures.get(1).isCancelled());
1221	>	try {
1222	>	assertEquals("0", futures.get(0).get());
1223	>	assertEquals("2", futures.get(2).get());
1224	>	break;
1225	>	} catch (CancellationException retryWithLongerTimeout) {
1226	>	timeout *= 2;
1227	>	if (timeout >= LONG_DELAY_MS / 2)
1228	>	fail("expected exactly one task to be cancelled");
1229	>	}
1230	>	}
1231		}
1232		}
1233
1234	+	/**
1235	+	* A fixed delay task with overflowing period should not prevent a
1236	+	* one-shot task from executing.
1237	+	* https://bugs.openjdk.java.net/browse/JDK-8051859
1238	+	*/
1239	+	public void testScheduleWithFixedDelay_overflow() throws Exception {
1240	+	final CountDownLatch delayedDone = new CountDownLatch(1);
1241	+	final CountDownLatch immediateDone = new CountDownLatch(1);
1242	+	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
1243	+	try (PoolCleaner cleaner = cleaner(p)) {
1244	+	final Runnable immediate = new Runnable() { public void run() {
1245	+	immediateDone.countDown();
1246	+	}};
1247	+	final Runnable delayed = new Runnable() { public void run() {
1248	+	delayedDone.countDown();
1249	+	p.submit(immediate);
1250	+	}};
1251	+	p.scheduleWithFixedDelay(delayed, 0L, Long.MAX_VALUE, SECONDS);
1252	+	await(delayedDone);
1253	+	await(immediateDone);
1254	+	}
1255	+	}
1256
1257		}

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