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

Comparing jsr166/src/test/tck/ScheduledExecutorTest.java (file contents):
Revision 1.22 by jsr166, Mon Nov 2 20:28:32 2009 UTC vs.
Revision 1.80 by jsr166, Mon Feb 22 23:16:06 2016 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.*;
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.Executors;
22	>	import java.util.concurrent.ExecutorService;
23	>	import java.util.concurrent.Future;
24	>	import java.util.concurrent.RejectedExecutionException;
25	>	import java.util.concurrent.ScheduledFuture;
26	>	import java.util.concurrent.ScheduledThreadPoolExecutor;
27	>	import java.util.concurrent.ThreadFactory;
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	>
33	>	import junit.framework.Test;
34	>	import junit.framework.TestSuite;
35
36		public class ScheduledExecutorTest extends JSR166TestCase {
37		public static void main(String[] args) {
38	<	junit.textui.TestRunner.run (suite());
38	>	main(suite(), args);
39		}
40		public static Test suite() {
41	<	return new TestSuite(ScheduledExecutorTest.class);
41	>	return new TestSuite(ScheduledExecutorTest.class);
42		}
43
22	–
44		/**
45		* execute successfully executes a runnable
46		*/
47	<	public void testExecute() {
48	<	try {
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; }
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);
47	>	public void testExecute() throws InterruptedException {
48	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
49	>	try (PoolCleaner cleaner = cleaner(p)) {
50	>	final CountDownLatch done = new CountDownLatch(1);
51	>	final Runnable task = new CheckedRunnable() {
52	>	public void realRun() { done.countDown(); }};
53	>	p.execute(task);
54	>	assertTrue(done.await(LONG_DELAY_MS, MILLISECONDS));
55		}
43	–	catch(Exception e){
44	–	unexpectedException();
45	–	}
46	–
56		}
57
49	–
58		/**
59		* delayed schedule of callable successfully executes after delay
60		*/
61	<	public void testSchedule1() {
62	<	try {
63	<	TrackedCallable callable = new TrackedCallable();
64	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
65	<	Future f = p1.schedule(callable, SHORT_DELAY_MS, TimeUnit.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);
72	<	} catch(RejectedExecutionException e){}
73	<	catch(Exception e){
74	<	e.printStackTrace();
75	<	unexpectedException();
61	>	public void testSchedule1() throws Exception {
62	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
63	>	try (PoolCleaner cleaner = cleaner(p)) {
64	>	final long startTime = System.nanoTime();
65	>	final CountDownLatch done = new CountDownLatch(1);
66	>	Callable task = new CheckedCallable<Boolean>() {
67	>	public Boolean realCall() {
68	>	done.countDown();
69	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
70	>	return Boolean.TRUE;
71	>	}};
72	>	Future f = p.schedule(task, timeoutMillis(), MILLISECONDS);
73	>	assertSame(Boolean.TRUE, f.get());
74	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
75	>	assertTrue(done.await(0L, MILLISECONDS));
76		}
77		}
78
79		/**
80	<	*  delayed schedule of runnable successfully executes after delay
81	<	*/
82	<	public void testSchedule3() {
83	<	try {
84	<	TrackedShortRunnable runnable = new TrackedShortRunnable();
85	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
86	<	p1.schedule(runnable, SMALL_DELAY_MS, TimeUnit.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);
93	<	} catch(Exception e){
94	<	unexpectedException();
80	>	* delayed schedule of runnable successfully executes after delay
81	>	*/
82	>	public void testSchedule3() throws Exception {
83	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
84	>	try (PoolCleaner cleaner = cleaner(p)) {
85	>	final long startTime = System.nanoTime();
86	>	final CountDownLatch done = new CountDownLatch(1);
87	>	Runnable task = new CheckedRunnable() {
88	>	public void realRun() {
89	>	done.countDown();
90	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
91	>	}};
92	>	Future f = p.schedule(task, timeoutMillis(), MILLISECONDS);
93	>	await(done);
94	>	assertNull(f.get(LONG_DELAY_MS, MILLISECONDS));
95	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
96		}
97		}
98
99		/**
100		* scheduleAtFixedRate executes runnable after given initial delay
101		*/
102	<	public void testSchedule4() {
103	<	try {
104	<	TrackedShortRunnable runnable = new TrackedShortRunnable();
105	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
106	<	ScheduledFuture h = p1.scheduleAtFixedRate(runnable, SHORT_DELAY_MS, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
107	<	assertFalse(runnable.done);
108	<	Thread.sleep(MEDIUM_DELAY_MS);
109	<	assertTrue(runnable.done);
110	<	h.cancel(true);
111	<	joinPool(p1);
112	<	} catch(Exception e){
113	<	unexpectedException();
102	>	public void testSchedule4() throws Exception {
103	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
104	>	try (PoolCleaner cleaner = cleaner(p)) {
105	>	final long startTime = System.nanoTime();
106	>	final CountDownLatch done = new CountDownLatch(1);
107	>	Runnable task = new CheckedRunnable() {
108	>	public void realRun() {
109	>	done.countDown();
110	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
111	>	}};
112	>	ScheduledFuture f =
113	>	p.scheduleAtFixedRate(task, timeoutMillis(),
114	>	LONG_DELAY_MS, MILLISECONDS);
115	>	await(done);
116	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
117	>	f.cancel(true);
118		}
119		}
120
108	–	static class RunnableCounter implements Runnable {
109	–	AtomicInteger count = new AtomicInteger(0);
110	–	public void run() { count.getAndIncrement(); }
111	–	}
112	–
121		/**
122		* scheduleWithFixedDelay executes runnable after given initial delay
123		*/
124	<	public void testSchedule5() {
125	<	try {
126	<	TrackedShortRunnable runnable = new TrackedShortRunnable();
127	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
128	<	ScheduledFuture h = p1.scheduleWithFixedDelay(runnable, SHORT_DELAY_MS, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
129	<	assertFalse(runnable.done);
130	<	Thread.sleep(MEDIUM_DELAY_MS);
131	<	assertTrue(runnable.done);
132	<	h.cancel(true);
133	<	joinPool(p1);
134	<	} catch(Exception e){
135	<	unexpectedException();
124	>	public void testSchedule5() throws Exception {
125	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
126	>	try (PoolCleaner cleaner = cleaner(p)) {
127	>	final long startTime = System.nanoTime();
128	>	final CountDownLatch done = new CountDownLatch(1);
129	>	Runnable task = new CheckedRunnable() {
130	>	public void realRun() {
131	>	done.countDown();
132	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
133	>	}};
134	>	ScheduledFuture f =
135	>	p.scheduleWithFixedDelay(task, timeoutMillis(),
136	>	LONG_DELAY_MS, MILLISECONDS);
137	>	await(done);
138	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
139	>	f.cancel(true);
140		}
141		}
142
143	+	static class RunnableCounter implements Runnable {
144	+	AtomicInteger count = new AtomicInteger(0);
145	+	public void run() { count.getAndIncrement(); }
146	+	}
147	+
148		/**
149	<	* scheduleAtFixedRate executes series of tasks at given rate
150	<	*/
151	<	public void testFixedRateSequence() {
152	<	try {
153	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
154	<	RunnableCounter counter = new RunnableCounter();
155	<	ScheduledFuture h =
156	<	p1.scheduleAtFixedRate(counter, 0, 1, TimeUnit.MILLISECONDS);
157	<	Thread.sleep(SMALL_DELAY_MS);
158	<	h.cancel(true);
159	<	int c = counter.count.get();
160	<	// By time scaling conventions, we must have at least
161	<	// an execution per SHORT delay, but no more than one SHORT more
162	<	assertTrue(c >= SMALL_DELAY_MS / SHORT_DELAY_MS);
163	<	assertTrue(c <= SMALL_DELAY_MS + SHORT_DELAY_MS);
164	<	joinPool(p1);
165	<	} catch(Exception e){
166	<	unexpectedException();
149	>	* scheduleAtFixedRate executes series of tasks at given rate.
150	>	* Eventually, it must hold that:
151	>	*   cycles - 1 <= elapsedMillis/delay < cycles
152	>	*/
153	>	public void testFixedRateSequence() throws InterruptedException {
154	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
155	>	try (PoolCleaner cleaner = cleaner(p)) {
156	>	for (int delay = 1; delay <= LONG_DELAY_MS; delay *= 3) {
157	>	final long startTime = System.nanoTime();
158	>	final int cycles = 8;
159	>	final CountDownLatch done = new CountDownLatch(cycles);
160	>	final Runnable task = new CheckedRunnable() {
161	>	public void realRun() { done.countDown(); }};
162	>	final ScheduledFuture periodicTask =
163	>	p.scheduleAtFixedRate(task, 0, delay, MILLISECONDS);
164	>	final int totalDelayMillis = (cycles - 1) * delay;
165	>	await(done, totalDelayMillis + LONG_DELAY_MS);
166	>	periodicTask.cancel(true);
167	>	final long elapsedMillis = millisElapsedSince(startTime);
168	>	assertTrue(elapsedMillis >= totalDelayMillis);
169	>	if (elapsedMillis <= cycles * delay)
170	>	return;
171	>	// else retry with longer delay
172	>	}
173	>	fail("unexpected execution rate");
174		}
175		}
176
177		/**
178	<	* scheduleWithFixedDelay executes series of tasks with given period
179	<	*/
180	<	public void testFixedDelaySequence() {
181	<	try {
182	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
183	<	RunnableCounter counter = new RunnableCounter();
184	<	ScheduledFuture h =
185	<	p1.scheduleWithFixedDelay(counter, 0, 1, TimeUnit.MILLISECONDS);
186	<	Thread.sleep(SMALL_DELAY_MS);
187	<	h.cancel(true);
188	<	int c = counter.count.get();
189	<	assertTrue(c >= SMALL_DELAY_MS / SHORT_DELAY_MS);
190	<	assertTrue(c <= SMALL_DELAY_MS + SHORT_DELAY_MS);
191	<	joinPool(p1);
192	<	} catch(Exception e){
193	<	unexpectedException();
178	>	* scheduleWithFixedDelay executes series of tasks with given period.
179	>	* Eventually, it must hold that each task starts at least delay and at
180	>	* most 2 * delay after the termination of the previous task.
181	>	*/
182	>	public void testFixedDelaySequence() throws InterruptedException {
183	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
184	>	try (PoolCleaner cleaner = cleaner(p)) {
185	>	for (int delay = 1; delay <= LONG_DELAY_MS; delay *= 3) {
186	>	final long startTime = System.nanoTime();
187	>	final AtomicLong previous = new AtomicLong(startTime);
188	>	final AtomicBoolean tryLongerDelay = new AtomicBoolean(false);
189	>	final int cycles = 8;
190	>	final CountDownLatch done = new CountDownLatch(cycles);
191	>	final int d = delay;
192	>	final Runnable task = new CheckedRunnable() {
193	>	public void realRun() {
194	>	long now = System.nanoTime();
195	>	long elapsedMillis
196	>	= NANOSECONDS.toMillis(now - previous.get());
197	>	if (done.getCount() == cycles) { // first execution
198	>	if (elapsedMillis >= d)
199	>	tryLongerDelay.set(true);
200	>	} else {
201	>	assertTrue(elapsedMillis >= d);
202	>	if (elapsedMillis >= 2 * d)
203	>	tryLongerDelay.set(true);
204	>	}
205	>	previous.set(now);
206	>	done.countDown();
207	>	}};
208	>	final ScheduledFuture periodicTask =
209	>	p.scheduleWithFixedDelay(task, 0, delay, MILLISECONDS);
210	>	final int totalDelayMillis = (cycles - 1) * delay;
211	>	await(done, totalDelayMillis + cycles * LONG_DELAY_MS);
212	>	periodicTask.cancel(true);
213	>	final long elapsedMillis = millisElapsedSince(startTime);
214	>	assertTrue(elapsedMillis >= totalDelayMillis);
215	>	if (!tryLongerDelay.get())
216	>	return;
217	>	// else retry with longer delay
218	>	}
219	>	fail("unexpected execution rate");
220		}
221		}
222
173	–
223		/**
224	<	*  execute (null) throws NPE
224	>	* execute(null) throws NPE
225		*/
226	<	public void testExecuteNull() {
227	<	ScheduledThreadPoolExecutor se = null;
228	<	try {
229	<	se = new ScheduledThreadPoolExecutor(1);
230	<	se.execute(null);
231	<	shouldThrow();
232	<	} catch(NullPointerException success){}
184	<	catch(Exception e){
185	<	unexpectedException();
226	>	public void testExecuteNull() throws InterruptedException {
227	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
228	>	try (PoolCleaner cleaner = cleaner(p)) {
229	>	try {
230	>	p.execute(null);
231	>	shouldThrow();
232	>	} catch (NullPointerException success) {}
233		}
187	–
188	–	joinPool(se);
234		}
235
236		/**
237	<	* schedule (null) throws NPE
237	>	* schedule(null) throws NPE
238		*/
239	<	public void testScheduleNull() {
240	<	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
241	<	try {
242	<	TrackedCallable callable = null;
243	<	Future f = se.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
244	<	shouldThrow();
245	<	} catch(NullPointerException success){}
246	<	catch(Exception e){
202	<	unexpectedException();
239	>	public void testScheduleNull() throws InterruptedException {
240	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
241	>	try (PoolCleaner cleaner = cleaner(p)) {
242	>	try {
243	>	TrackedCallable callable = null;
244	>	Future f = p.schedule(callable, SHORT_DELAY_MS, MILLISECONDS);
245	>	shouldThrow();
246	>	} catch (NullPointerException success) {}
247		}
204	–	joinPool(se);
248		}
249
250		/**
251		* execute throws RejectedExecutionException if shutdown
252		*/
253	<	public void testSchedule1_RejectedExecutionException() {
254	<	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
255	<	try {
256	<	se.shutdown();
257	<	se.schedule(new NoOpRunnable(),
258	<	MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
259	<	shouldThrow();
260	<	} catch(RejectedExecutionException success){
261	<	} catch (SecurityException ok) {
253	>	public void testSchedule1_RejectedExecutionException() throws InterruptedException {
254	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
255	>	try (PoolCleaner cleaner = cleaner(p)) {
256	>	try {
257	>	p.shutdown();
258	>	p.schedule(new NoOpRunnable(),
259	>	MEDIUM_DELAY_MS, MILLISECONDS);
260	>	shouldThrow();
261	>	} catch (RejectedExecutionException success) {
262	>	} catch (SecurityException ok) {}
263		}
220	–
221	–	joinPool(se);
222	–
264		}
265
266		/**
267		* schedule throws RejectedExecutionException if shutdown
268		*/
269	<	public void testSchedule2_RejectedExecutionException() {
270	<	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
271	<	try {
272	<	se.shutdown();
273	<	se.schedule(new NoOpCallable(),
274	<	MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
275	<	shouldThrow();
276	<	} catch(RejectedExecutionException success){
277	<	} catch (SecurityException ok) {
269	>	public void testSchedule2_RejectedExecutionException() throws InterruptedException {
270	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
271	>	try (PoolCleaner cleaner = cleaner(p)) {
272	>	try {
273	>	p.shutdown();
274	>	p.schedule(new NoOpCallable(),
275	>	MEDIUM_DELAY_MS, MILLISECONDS);
276	>	shouldThrow();
277	>	} catch (RejectedExecutionException success) {
278	>	} catch (SecurityException ok) {}
279		}
238	–	joinPool(se);
280		}
281
282		/**
283		* schedule callable throws RejectedExecutionException if shutdown
284		*/
285	<	public void testSchedule3_RejectedExecutionException() {
286	<	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
287	<	try {
288	<	se.shutdown();
289	<	se.schedule(new NoOpCallable(),
290	<	MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
291	<	shouldThrow();
292	<	} catch(RejectedExecutionException success){
293	<	} catch (SecurityException ok) {
285	>	public void testSchedule3_RejectedExecutionException() throws InterruptedException {
286	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
287	>	try (PoolCleaner cleaner = cleaner(p)) {
288	>	try {
289	>	p.shutdown();
290	>	p.schedule(new NoOpCallable(),
291	>	MEDIUM_DELAY_MS, MILLISECONDS);
292	>	shouldThrow();
293	>	} catch (RejectedExecutionException success) {
294	>	} catch (SecurityException ok) {}
295		}
254	–	joinPool(se);
296		}
297
298		/**
299	<	*  scheduleAtFixedRate throws RejectedExecutionException if shutdown
300	<	*/
301	<	public void testScheduleAtFixedRate1_RejectedExecutionException() {
302	<	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
303	<	try {
304	<	se.shutdown();
305	<	se.scheduleAtFixedRate(new NoOpRunnable(),
306	<	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
307	<	shouldThrow();
308	<	} catch(RejectedExecutionException success){
309	<	} catch (SecurityException ok) {
299	>	* scheduleAtFixedRate throws RejectedExecutionException if shutdown
300	>	*/
301	>	public void testScheduleAtFixedRate1_RejectedExecutionException() throws InterruptedException {
302	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
303	>	try (PoolCleaner cleaner = cleaner(p)) {
304	>	try {
305	>	p.shutdown();
306	>	p.scheduleAtFixedRate(new NoOpRunnable(),
307	>	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS);
308	>	shouldThrow();
309	>	} catch (RejectedExecutionException success) {
310	>	} catch (SecurityException ok) {}
311		}
270	–	joinPool(se);
312		}
313
314		/**
315		* scheduleWithFixedDelay throws RejectedExecutionException if shutdown
316		*/
317	<	public void testScheduleWithFixedDelay1_RejectedExecutionException() {
318	<	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
319	<	try {
320	<	se.shutdown();
321	<	se.scheduleWithFixedDelay(new NoOpRunnable(),
322	<	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
323	<	shouldThrow();
324	<	} catch(RejectedExecutionException success){
325	<	} catch (SecurityException ok) {
326	<	}
286	<	joinPool(se);
287	<	}
288	<
289	<	/**
290	<	*  getActiveCount increases but doesn't overestimate, when a
291	<	*  thread becomes active
292	<	*/
293	<	public void testGetActiveCount() {
294	<	ScheduledThreadPoolExecutor p2 = new ScheduledThreadPoolExecutor(2);
295	<	assertEquals(0, p2.getActiveCount());
296	<	p2.execute(new SmallRunnable());
297	<	try {
298	<	Thread.sleep(SHORT_DELAY_MS);
299	<	} catch(Exception e){
300	<	unexpectedException();
317	>	public void testScheduleWithFixedDelay1_RejectedExecutionException() throws InterruptedException {
318	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
319	>	try (PoolCleaner cleaner = cleaner(p)) {
320	>	try {
321	>	p.shutdown();
322	>	p.scheduleWithFixedDelay(new NoOpRunnable(),
323	>	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS);
324	>	shouldThrow();
325	>	} catch (RejectedExecutionException success) {
326	>	} catch (SecurityException ok) {}
327		}
302	–	assertEquals(1, p2.getActiveCount());
303	–	joinPool(p2);
328		}
329
330		/**
331	<	*    getCompletedTaskCount increases, but doesn't overestimate,
332	<	*   when tasks complete
333	<	*/
334	<	public void testGetCompletedTaskCount() {
335	<	ScheduledThreadPoolExecutor p2 = new ScheduledThreadPoolExecutor(2);
336	<	assertEquals(0, p2.getCompletedTaskCount());
337	<	p2.execute(new SmallRunnable());
338	<	try {
339	<	Thread.sleep(MEDIUM_DELAY_MS);
340	<	} catch(Exception e){
341	<	unexpectedException();
331	>	* getActiveCount increases but doesn't overestimate, when a
332	>	* thread becomes active
333	>	*/
334	>	public void testGetActiveCount() throws InterruptedException {
335	>	final CountDownLatch done = new CountDownLatch(1);
336	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(2);
337	>	try (PoolCleaner cleaner = cleaner(p, done)) {
338	>	final CountDownLatch threadStarted = new CountDownLatch(1);
339	>	assertEquals(0, p.getActiveCount());
340	>	p.execute(new CheckedRunnable() {
341	>	public void realRun() throws InterruptedException {
342	>	threadStarted.countDown();
343	>	assertEquals(1, p.getActiveCount());
344	>	await(done);
345	>	}});
346	>	await(threadStarted);
347	>	assertEquals(1, p.getActiveCount());
348		}
319	–	assertEquals(1, p2.getCompletedTaskCount());
320	–	joinPool(p2);
321	–	}
322	–
323	–	/**
324	–	*  getCorePoolSize returns size given in constructor if not otherwise set
325	–	*/
326	–	public void testGetCorePoolSize() {
327	–	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
328	–	assertEquals(1, p1.getCorePoolSize());
329	–	joinPool(p1);
349		}
350
351		/**
352	<	*    getLargestPoolSize increases, but doesn't overestimate, when
353	<	*   multiple threads active
354	<	*/
355	<	public void testGetLargestPoolSize() {
356	<	ScheduledThreadPoolExecutor p2 = new ScheduledThreadPoolExecutor(2);
357	<	assertEquals(0, p2.getLargestPoolSize());
358	<	p2.execute(new SmallRunnable());
359	<	p2.execute(new SmallRunnable());
360	<	try {
361	<	Thread.sleep(SHORT_DELAY_MS);
362	<	} catch(Exception e){
363	<	unexpectedException();
352	>	* getCompletedTaskCount increases, but doesn't overestimate,
353	>	* when tasks complete
354	>	*/
355	>	public void testGetCompletedTaskCount() throws InterruptedException {
356	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(2);
357	>	try (PoolCleaner cleaner = cleaner(p)) {
358	>	final CountDownLatch threadStarted = new CountDownLatch(1);
359	>	final CountDownLatch threadProceed = new CountDownLatch(1);
360	>	final CountDownLatch threadDone = new CountDownLatch(1);
361	>	assertEquals(0, p.getCompletedTaskCount());
362	>	p.execute(new CheckedRunnable() {
363	>	public void realRun() throws InterruptedException {
364	>	threadStarted.countDown();
365	>	assertEquals(0, p.getCompletedTaskCount());
366	>	threadProceed.await();
367	>	threadDone.countDown();
368	>	}});
369	>	await(threadStarted);
370	>	assertEquals(0, p.getCompletedTaskCount());
371	>	threadProceed.countDown();
372	>	threadDone.await();
373	>	long startTime = System.nanoTime();
374	>	while (p.getCompletedTaskCount() != 1) {
375	>	if (millisElapsedSince(startTime) > LONG_DELAY_MS)
376	>	fail("timed out");
377	>	Thread.yield();
378	>	}
379		}
346	–	assertEquals(2, p2.getLargestPoolSize());
347	–	joinPool(p2);
380		}
381
382		/**
383	<	*   getPoolSize increases, but doesn't overestimate, when threads
352	<	*   become active
383	>	* getCorePoolSize returns size given in constructor if not otherwise set
384		*/
385	<	public void testGetPoolSize() {
386	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
387	<	assertEquals(0, p1.getPoolSize());
388	<	p1.execute(new SmallRunnable());
389	<	assertEquals(1, p1.getPoolSize());
390	<	joinPool(p1);
391	<	}
392	<
393	<	/**
394	<	*    getTaskCount increases, but doesn't overestimate, when tasks
395	<	*    submitted
396	<	*/
397	<	public void testGetTaskCount() {
398	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
399	<	assertEquals(0, p1.getTaskCount());
400	<	for(int i = 0; i < 5; i++)
401	<	p1.execute(new SmallRunnable());
402	<	try {
403	<	Thread.sleep(SHORT_DELAY_MS);
404	<	} catch(Exception e){
405	<	unexpectedException();
385	>	public void testGetCorePoolSize() throws InterruptedException {
386	>	ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
387	>	try (PoolCleaner cleaner = cleaner(p)) {
388	>	assertEquals(1, p.getCorePoolSize());
389	>	}
390	>	}
391	>
392	>	/**
393	>	* getLargestPoolSize increases, but doesn't overestimate, when
394	>	* multiple threads active
395	>	*/
396	>	public void testGetLargestPoolSize() throws InterruptedException {
397	>	final int THREADS = 3;
398	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(THREADS);
399	>	final CountDownLatch threadsStarted = new CountDownLatch(THREADS);
400	>	final CountDownLatch done = new CountDownLatch(1);
401	>	try (PoolCleaner cleaner = cleaner(p, done)) {
402	>	assertEquals(0, p.getLargestPoolSize());
403	>	for (int i = 0; i < THREADS; i++)
404	>	p.execute(new CheckedRunnable() {
405	>	public void realRun() throws InterruptedException {
406	>	threadsStarted.countDown();
407	>	await(done);
408	>	assertEquals(THREADS, p.getLargestPoolSize());
409	>	}});
410	>	await(threadsStarted);
411	>	assertEquals(THREADS, p.getLargestPoolSize());
412	>	}
413	>	assertEquals(THREADS, p.getLargestPoolSize());
414	>	}
415	>
416	>	/**
417	>	* getPoolSize increases, but doesn't overestimate, when threads
418	>	* become active
419	>	*/
420	>	public void testGetPoolSize() throws InterruptedException {
421	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
422	>	final CountDownLatch threadStarted = new CountDownLatch(1);
423	>	final CountDownLatch done = new CountDownLatch(1);
424	>	try (PoolCleaner cleaner = cleaner(p, done)) {
425	>	assertEquals(0, p.getPoolSize());
426	>	p.execute(new CheckedRunnable() {
427	>	public void realRun() throws InterruptedException {
428	>	threadStarted.countDown();
429	>	assertEquals(1, p.getPoolSize());
430	>	await(done);
431	>	}});
432	>	await(threadStarted);
433	>	assertEquals(1, p.getPoolSize());
434	>	}
435	>	}
436	>
437	>	/**
438	>	* getTaskCount increases, but doesn't overestimate, when tasks
439	>	* submitted
440	>	*/
441	>	public void testGetTaskCount() throws InterruptedException {
442	>	final int TASKS = 3;
443	>	final CountDownLatch done = new CountDownLatch(1);
444	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
445	>	try (PoolCleaner cleaner = cleaner(p, done)) {
446	>	final CountDownLatch threadStarted = new CountDownLatch(1);
447	>	assertEquals(0, p.getTaskCount());
448	>	assertEquals(0, p.getCompletedTaskCount());
449	>	p.execute(new CheckedRunnable() {
450	>	public void realRun() throws InterruptedException {
451	>	threadStarted.countDown();
452	>	await(done);
453	>	}});
454	>	await(threadStarted);
455	>	assertEquals(1, p.getTaskCount());
456	>	assertEquals(0, p.getCompletedTaskCount());
457	>	for (int i = 0; i < TASKS; i++) {
458	>	assertEquals(1 + i, p.getTaskCount());
459	>	p.execute(new CheckedRunnable() {
460	>	public void realRun() throws InterruptedException {
461	>	threadStarted.countDown();
462	>	assertEquals(1 + TASKS, p.getTaskCount());
463	>	await(done);
464	>	}});
465	>	}
466	>	assertEquals(1 + TASKS, p.getTaskCount());
467	>	assertEquals(0, p.getCompletedTaskCount());
468		}
469	<	assertEquals(5, p1.getTaskCount());
470	<	joinPool(p1);
469	>	assertEquals(1 + TASKS, p.getTaskCount());
470	>	assertEquals(1 + TASKS, p.getCompletedTaskCount());
471		}
472
473		/**
474		* getThreadFactory returns factory in constructor if not set
475		*/
476	<	public void testGetThreadFactory() {
477	<	ThreadFactory tf = new SimpleThreadFactory();
478	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1, tf);
479	<	assertSame(tf, p.getThreadFactory());
480	<	joinPool(p);
476	>	public void testGetThreadFactory() throws InterruptedException {
477	>	final ThreadFactory threadFactory = new SimpleThreadFactory();
478	>	final ScheduledThreadPoolExecutor p =
479	>	new ScheduledThreadPoolExecutor(1, threadFactory);
480	>	try (PoolCleaner cleaner = cleaner(p)) {
481	>	assertSame(threadFactory, p.getThreadFactory());
482	>	}
483		}
484
485		/**
486		* setThreadFactory sets the thread factory returned by getThreadFactory
487		*/
488	<	public void testSetThreadFactory() {
489	<	ThreadFactory tf = new SimpleThreadFactory();
490	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
491	<	p.setThreadFactory(tf);
492	<	assertSame(tf, p.getThreadFactory());
493	<	joinPool(p);
488	>	public void testSetThreadFactory() throws InterruptedException {
489	>	ThreadFactory threadFactory = new SimpleThreadFactory();
490	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
491	>	try (PoolCleaner cleaner = cleaner(p)) {
492	>	p.setThreadFactory(threadFactory);
493	>	assertSame(threadFactory, p.getThreadFactory());
494	>	}
495		}
496
497		/**
498		* setThreadFactory(null) throws NPE
499		*/
500	<	public void testSetThreadFactoryNull() {
501	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
502	<	try {
503	<	p.setThreadFactory(null);
504	<	shouldThrow();
505	<	} catch (NullPointerException success) {
506	<	} finally {
411	<	joinPool(p);
500	>	public void testSetThreadFactoryNull() throws InterruptedException {
501	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
502	>	try (PoolCleaner cleaner = cleaner(p)) {
503	>	try {
504	>	p.setThreadFactory(null);
505	>	shouldThrow();
506	>	} catch (NullPointerException success) {}
507		}
508		}
509
510		/**
511	<	*   is isShutDown is false before shutdown, true after
511	>	* isShutdown is false before shutdown, true after
512		*/
513		public void testIsShutdown() {
514
515	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
515	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
516		try {
517	<	assertFalse(p1.isShutdown());
517	>	assertFalse(p.isShutdown());
518		}
519		finally {
520	<	try { p1.shutdown(); } catch(SecurityException ok) { return; }
520	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
521		}
522	<	assertTrue(p1.isShutdown());
522	>	assertTrue(p.isShutdown());
523		}
524
430	–
525		/**
526	<	*   isTerminated is false before termination, true after
526	>	* isTerminated is false before termination, true after
527		*/
528	<	public void testIsTerminated() {
529	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
530	<	try {
531	<	p1.execute(new SmallRunnable());
532	<	} finally {
533	<	try { p1.shutdown(); } catch(SecurityException ok) { return; }
534	<	}
535	<	try {
536	<	assertTrue(p1.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
537	<	assertTrue(p1.isTerminated());
538	<	} catch(Exception e){
539	<	unexpectedException();
528	>	public void testIsTerminated() throws InterruptedException {
529	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
530	>	try (PoolCleaner cleaner = cleaner(p)) {
531	>	final CountDownLatch threadStarted = new CountDownLatch(1);
532	>	final CountDownLatch done = new CountDownLatch(1);
533	>	assertFalse(p.isTerminated());
534	>	p.execute(new CheckedRunnable() {
535	>	public void realRun() throws InterruptedException {
536	>	assertFalse(p.isTerminated());
537	>	threadStarted.countDown();
538	>	await(done);
539	>	}});
540	>	await(threadStarted);
541	>	assertFalse(p.isTerminating());
542	>	done.countDown();
543	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
544	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
545	>	assertTrue(p.isTerminated());
546		}
547		}
548
549		/**
550	<	*  isTerminating is not true when running or when terminated
551	<	*/
552	<	public void testIsTerminating() {
553	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
554	<	assertFalse(p1.isTerminating());
555	<	try {
556	<	p1.execute(new SmallRunnable());
557	<	assertFalse(p1.isTerminating());
558	<	} finally {
559	<	try { p1.shutdown(); } catch(SecurityException ok) { return; }
560	<	}
561	<	try {
562	<	assertTrue(p1.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
563	<	assertTrue(p1.isTerminated());
564	<	assertFalse(p1.isTerminating());
565	<	} catch(Exception e){
566	<	unexpectedException();
550	>	* isTerminating is not true when running or when terminated
551	>	*/
552	>	public void testIsTerminating() throws InterruptedException {
553	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
554	>	final CountDownLatch threadStarted = new CountDownLatch(1);
555	>	final CountDownLatch done = new CountDownLatch(1);
556	>	try (PoolCleaner cleaner = cleaner(p)) {
557	>	assertFalse(p.isTerminating());
558	>	p.execute(new CheckedRunnable() {
559	>	public void realRun() throws InterruptedException {
560	>	assertFalse(p.isTerminating());
561	>	threadStarted.countDown();
562	>	await(done);
563	>	}});
564	>	await(threadStarted);
565	>	assertFalse(p.isTerminating());
566	>	done.countDown();
567	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
568	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
569	>	assertTrue(p.isTerminated());
570	>	assertFalse(p.isTerminating());
571		}
572		}
573
574		/**
575		* getQueue returns the work queue, which contains queued tasks
576		*/
577	<	public void testGetQueue() {
578	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
579	<	ScheduledFuture[] tasks = new ScheduledFuture[5];
580	<	for(int i = 0; i < 5; i++){
581	<	tasks[i] = p1.schedule(new SmallPossiblyInterruptedRunnable(), 1, TimeUnit.MILLISECONDS);
582	<	}
583	<	try {
584	<	Thread.sleep(SHORT_DELAY_MS);
585	<	BlockingQueue<Runnable> q = p1.getQueue();
586	<	assertTrue(q.contains(tasks[4]));
577	>	public void testGetQueue() throws InterruptedException {
578	>	final CountDownLatch done = new CountDownLatch(1);
579	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
580	>	try (PoolCleaner cleaner = cleaner(p, done)) {
581	>	final CountDownLatch threadStarted = new CountDownLatch(1);
582	>	ScheduledFuture[] tasks = new ScheduledFuture[5];
583	>	for (int i = 0; i < tasks.length; i++) {
584	>	Runnable r = new CheckedRunnable() {
585	>	public void realRun() throws InterruptedException {
586	>	threadStarted.countDown();
587	>	await(done);
588	>	}};
589	>	tasks[i] = p.schedule(r, 1, MILLISECONDS);
590	>	}
591	>	await(threadStarted);
592	>	BlockingQueue<Runnable> q = p.getQueue();
593	>	assertTrue(q.contains(tasks[tasks.length - 1]));
594		assertFalse(q.contains(tasks[0]));
484	–	} catch(Exception e) {
485	–	unexpectedException();
486	–	} finally {
487	–	joinPool(p1);
595		}
596		}
597
598		/**
599		* remove(task) removes queued task, and fails to remove active task
600		*/
601	<	public void testRemove() {
602	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
603	<	ScheduledFuture[] tasks = new ScheduledFuture[5];
604	<	for(int i = 0; i < 5; i++){
605	<	tasks[i] = p1.schedule(new SmallPossiblyInterruptedRunnable(), 1, TimeUnit.MILLISECONDS);
606	<	}
607	<	try {
608	<	Thread.sleep(SHORT_DELAY_MS);
609	<	BlockingQueue<Runnable> q = p1.getQueue();
610	<	assertFalse(p1.remove((Runnable)tasks[0]));
601	>	public void testRemove() throws InterruptedException {
602	>	final CountDownLatch done = new CountDownLatch(1);
603	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
604	>	try (PoolCleaner cleaner = cleaner(p, done)) {
605	>	ScheduledFuture[] tasks = new ScheduledFuture[5];
606	>	final CountDownLatch threadStarted = new CountDownLatch(1);
607	>	for (int i = 0; i < tasks.length; i++) {
608	>	Runnable r = new CheckedRunnable() {
609	>	public void realRun() throws InterruptedException {
610	>	threadStarted.countDown();
611	>	await(done);
612	>	}};
613	>	tasks[i] = p.schedule(r, 1, MILLISECONDS);
614	>	}
615	>	await(threadStarted);
616	>	BlockingQueue<Runnable> q = p.getQueue();
617	>	assertFalse(p.remove((Runnable)tasks[0]));
618		assertTrue(q.contains((Runnable)tasks[4]));
619		assertTrue(q.contains((Runnable)tasks[3]));
620	<	assertTrue(p1.remove((Runnable)tasks[4]));
621	<	assertFalse(p1.remove((Runnable)tasks[4]));
620	>	assertTrue(p.remove((Runnable)tasks[4]));
621	>	assertFalse(p.remove((Runnable)tasks[4]));
622		assertFalse(q.contains((Runnable)tasks[4]));
623		assertTrue(q.contains((Runnable)tasks[3]));
624	<	assertTrue(p1.remove((Runnable)tasks[3]));
624	>	assertTrue(p.remove((Runnable)tasks[3]));
625		assertFalse(q.contains((Runnable)tasks[3]));
512	–	} catch(Exception e) {
513	–	unexpectedException();
514	–	} finally {
515	–	joinPool(p1);
626		}
627		}
628
629		/**
630	<	*  purge removes cancelled tasks from the queue
630	>	* purge eventually removes cancelled tasks from the queue
631		*/
632	<	public void testPurge() {
633	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
634	<	ScheduledFuture[] tasks = new ScheduledFuture[5];
635	<	for(int i = 0; i < 5; i++){
636	<	tasks[i] = p1.schedule(new SmallPossiblyInterruptedRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
637	<	}
638	<	try {
639	<	int max = 5;
632	>	public void testPurge() throws InterruptedException {
633	>	final ScheduledFuture[] tasks = new ScheduledFuture[5];
634	>	final Runnable releaser = new Runnable() { public void run() {
635	>	for (ScheduledFuture task : tasks)
636	>	if (task != null) task.cancel(true); }};
637	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
638	>	try (PoolCleaner cleaner = cleaner(p, releaser)) {
639	>	for (int i = 0; i < tasks.length; i++)
640	>	tasks[i] = p.schedule(new SmallPossiblyInterruptedRunnable(),
641	>	LONG_DELAY_MS, MILLISECONDS);
642	>	int max = tasks.length;
643		if (tasks[4].cancel(true)) --max;
644		if (tasks[3].cancel(true)) --max;
645		// There must eventually be an interference-free point at
646		// which purge will not fail. (At worst, when queue is empty.)
647	<	int k;
648	<	for (k = 0; k < SMALL_DELAY_MS; ++k) {
649	<	p1.purge();
650	<	long count = p1.getTaskCount();
651	<	if (count >= 0 && count <= max)
652	<	break;
653	<	Thread.sleep(1);
654	<	}
542	<	assertTrue(k < SMALL_DELAY_MS);
543	<	} catch(Exception e) {
544	<	unexpectedException();
545	<	} finally {
546	<	joinPool(p1);
647	>	long startTime = System.nanoTime();
648	>	do {
649	>	p.purge();
650	>	long count = p.getTaskCount();
651	>	if (count == max)
652	>	return;
653	>	} while (millisElapsedSince(startTime) < LONG_DELAY_MS);
654	>	fail("Purge failed to remove cancelled tasks");
655		}
656		}
657
658		/**
659	<	*  shutDownNow returns a list containing tasks that were not run
660	<	*/
661	<	public void testShutDownNow() {
662	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
663	<	for(int i = 0; i < 5; i++)
664	<	p1.schedule(new SmallPossiblyInterruptedRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
665	<	List l;
659	>	* shutdownNow returns a list containing tasks that were not run,
660	>	* and those tasks are drained from the queue
661	>	*/
662	>	public void testShutdownNow() throws InterruptedException {
663	>	final int poolSize = 2;
664	>	final int count = 5;
665	>	final AtomicInteger ran = new AtomicInteger(0);
666	>	final ScheduledThreadPoolExecutor p =
667	>	new ScheduledThreadPoolExecutor(poolSize);
668	>	final CountDownLatch threadsStarted = new CountDownLatch(poolSize);
669	>	Runnable waiter = new CheckedRunnable() { public void realRun() {
670	>	threadsStarted.countDown();
671	>	try {
672	>	MILLISECONDS.sleep(2 * LONG_DELAY_MS);
673	>	} catch (InterruptedException success) {}
674	>	ran.getAndIncrement();
675	>	}};
676	>	for (int i = 0; i < count; i++)
677	>	p.execute(waiter);
678	>	await(threadsStarted);
679	>	assertEquals(poolSize, p.getActiveCount());
680	>	assertEquals(0, p.getCompletedTaskCount());
681	>	final List<Runnable> queuedTasks;
682		try {
683	<	l = p1.shutdownNow();
683	>	queuedTasks = p.shutdownNow();
684		} catch (SecurityException ok) {
685	<	return;
685	>	return; // Allowed in case test doesn't have privs
686		}
687	<	assertTrue(p1.isShutdown());
688	<	assertTrue(l.size() > 0 && l.size() <= 5);
689	<	joinPool(p1);
687	>	assertTrue(p.isShutdown());
688	>	assertTrue(p.getQueue().isEmpty());
689	>	assertEquals(count - poolSize, queuedTasks.size());
690	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
691	>	assertTrue(p.isTerminated());
692	>	assertEquals(poolSize, ran.get());
693	>	assertEquals(poolSize, p.getCompletedTaskCount());
694		}
695
696		/**
697	<	* In default setting, shutdown cancels periodic but not delayed
698	<	* tasks at shutdown
699	<	*/
700	<	public void testShutDown1() {
701	<	try {
702	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
703	<	assertTrue(p1.getExecuteExistingDelayedTasksAfterShutdownPolicy());
704	<	assertFalse(p1.getContinueExistingPeriodicTasksAfterShutdownPolicy());
705	<
706	<	ScheduledFuture[] tasks = new ScheduledFuture[5];
707	<	for(int i = 0; i < 5; i++)
708	<	tasks[i] = p1.schedule(new NoOpRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
709	<	try { p1.shutdown(); } catch(SecurityException ok) { return; }
710	<	BlockingQueue q = p1.getQueue();
711	<	for (Iterator it = q.iterator(); it.hasNext();) {
584	<	ScheduledFuture t = (ScheduledFuture)it.next();
585	<	assertFalse(t.isCancelled());
586	<	}
587	<	assertTrue(p1.isShutdown());
588	<	Thread.sleep(SMALL_DELAY_MS);
589	<	for (int i = 0; i < 5; ++i) {
590	<	assertTrue(tasks[i].isDone());
591	<	assertFalse(tasks[i].isCancelled());
592	<	}
593	<
594	<	}
595	<	catch(Exception ex) {
596	<	unexpectedException();
597	<	}
598	<	}
599	<
600	<
601	<	/**
602	<	* If setExecuteExistingDelayedTasksAfterShutdownPolicy is false,
603	<	* delayed tasks are cancelled at shutdown
604	<	*/
605	<	public void testShutDown2() {
606	<	try {
607	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
608	<	p1.setExecuteExistingDelayedTasksAfterShutdownPolicy(false);
609	<	ScheduledFuture[] tasks = new ScheduledFuture[5];
610	<	for(int i = 0; i < 5; i++)
611	<	tasks[i] = p1.schedule(new NoOpRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
612	<	try { p1.shutdown(); } catch(SecurityException ok) { return; }
613	<	assertTrue(p1.isShutdown());
614	<	BlockingQueue q = p1.getQueue();
615	<	assertTrue(q.isEmpty());
616	<	Thread.sleep(SMALL_DELAY_MS);
617	<	assertTrue(p1.isTerminated());
618	<	}
619	<	catch(Exception ex) {
620	<	unexpectedException();
621	<	}
622	<	}
623	<
624	<
625	<	/**
626	<	* If setContinueExistingPeriodicTasksAfterShutdownPolicy is set false,
627	<	* periodic tasks are not cancelled at shutdown
628	<	*/
629	<	public void testShutDown3() {
697	>	* shutdownNow returns a list containing tasks that were not run,
698	>	* and those tasks are drained from the queue
699	>	*/
700	>	public void testShutdownNow_delayedTasks() throws InterruptedException {
701	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
702	>	List<ScheduledFuture> tasks = new ArrayList<>();
703	>	for (int i = 0; i < 3; i++) {
704	>	Runnable r = new NoOpRunnable();
705	>	tasks.add(p.schedule(r, 9, SECONDS));
706	>	tasks.add(p.scheduleAtFixedRate(r, 9, 9, SECONDS));
707	>	tasks.add(p.scheduleWithFixedDelay(r, 9, 9, SECONDS));
708	>	}
709	>	if (testImplementationDetails)
710	>	assertEquals(new HashSet(tasks), new HashSet(p.getQueue()));
711	>	final List<Runnable> queuedTasks;
712		try {
713	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
714	<	p1.setContinueExistingPeriodicTasksAfterShutdownPolicy(false);
715	<	ScheduledFuture task =
634	<	p1.scheduleAtFixedRate(new NoOpRunnable(), 5, 5, TimeUnit.MILLISECONDS);
635	<	try { p1.shutdown(); } catch(SecurityException ok) { return; }
636	<	assertTrue(p1.isShutdown());
637	<	BlockingQueue q = p1.getQueue();
638	<	assertTrue(q.isEmpty());
639	<	Thread.sleep(SHORT_DELAY_MS);
640	<	assertTrue(p1.isTerminated());
713	>	queuedTasks = p.shutdownNow();
714	>	} catch (SecurityException ok) {
715	>	return; // Allowed in case test doesn't have privs
716		}
717	<	catch(Exception ex) {
718	<	unexpectedException();
717	>	assertTrue(p.isShutdown());
718	>	assertTrue(p.getQueue().isEmpty());
719	>	if (testImplementationDetails)
720	>	assertEquals(new HashSet(tasks), new HashSet(queuedTasks));
721	>	assertEquals(tasks.size(), queuedTasks.size());
722	>	for (ScheduledFuture task : tasks) {
723	>	assertFalse(task.isDone());
724	>	assertFalse(task.isCancelled());
725		}
726	+	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
727	+	assertTrue(p.isTerminated());
728		}
729
730		/**
731	<	* if setContinueExistingPeriodicTasksAfterShutdownPolicy is true,
732	<	* periodic tasks are cancelled at shutdown
733	<	*/
734	<	public void testShutDown4() {
735	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
736	<	try {
737	<	p1.setContinueExistingPeriodicTasksAfterShutdownPolicy(true);
738	<	ScheduledFuture task =
739	<	p1.scheduleAtFixedRate(new NoOpRunnable(), 1, 1, TimeUnit.MILLISECONDS);
740	<	assertFalse(task.isCancelled());
741	<	try { p1.shutdown(); } catch(SecurityException ok) { return; }
742	<	assertFalse(task.isCancelled());
743	<	assertFalse(p1.isTerminated());
744	<	assertTrue(p1.isShutdown());
745	<	Thread.sleep(SHORT_DELAY_MS);
746	<	assertFalse(task.isCancelled());
747	<	assertTrue(task.cancel(true));
748	<	assertTrue(task.isDone());
749	<	Thread.sleep(SHORT_DELAY_MS);
750	<	assertTrue(p1.isTerminated());
751	<	}
752	<	catch(Exception ex) {
753	<	unexpectedException();
731	>	* By default, periodic tasks are cancelled at shutdown.
732	>	* By default, delayed tasks keep running after shutdown.
733	>	* Check that changing the default values work:
734	>	* - setExecuteExistingDelayedTasksAfterShutdownPolicy
735	>	* - setContinueExistingPeriodicTasksAfterShutdownPolicy
736	>	*/
737	>	public void testShutdown_cancellation() throws Exception {
738	>	Boolean[] allBooleans = { null, Boolean.FALSE, Boolean.TRUE };
739	>	for (Boolean policy : allBooleans)
740	>	{
741	>	final int poolSize = 2;
742	>	final ScheduledThreadPoolExecutor p
743	>	= new ScheduledThreadPoolExecutor(poolSize);
744	>	final boolean effectiveDelayedPolicy = (policy != Boolean.FALSE);
745	>	final boolean effectivePeriodicPolicy = (policy == Boolean.TRUE);
746	>	final boolean effectiveRemovePolicy = (policy == Boolean.TRUE);
747	>	if (policy != null) {
748	>	p.setExecuteExistingDelayedTasksAfterShutdownPolicy(policy);
749	>	p.setContinueExistingPeriodicTasksAfterShutdownPolicy(policy);
750	>	p.setRemoveOnCancelPolicy(policy);
751	>	}
752	>	assertEquals(effectiveDelayedPolicy,
753	>	p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
754	>	assertEquals(effectivePeriodicPolicy,
755	>	p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
756	>	assertEquals(effectiveRemovePolicy,
757	>	p.getRemoveOnCancelPolicy());
758	>	// Strategy: Wedge the pool with poolSize "blocker" threads
759	>	final AtomicInteger ran = new AtomicInteger(0);
760	>	final CountDownLatch poolBlocked = new CountDownLatch(poolSize);
761	>	final CountDownLatch unblock = new CountDownLatch(1);
762	>	final CountDownLatch periodicLatch1 = new CountDownLatch(2);
763	>	final CountDownLatch periodicLatch2 = new CountDownLatch(2);
764	>	Runnable task = new CheckedRunnable() { public void realRun()
765	>	throws InterruptedException {
766	>	poolBlocked.countDown();
767	>	assertTrue(unblock.await(LONG_DELAY_MS, MILLISECONDS));
768	>	ran.getAndIncrement();
769	>	}};
770	>	List<Future<?>> blockers = new ArrayList<>();
771	>	List<Future<?>> periodics = new ArrayList<>();
772	>	List<Future<?>> delayeds = new ArrayList<>();
773	>	for (int i = 0; i < poolSize; i++)
774	>	blockers.add(p.submit(task));
775	>	assertTrue(poolBlocked.await(LONG_DELAY_MS, MILLISECONDS));
776	>
777	>	periodics.add(p.scheduleAtFixedRate(countDowner(periodicLatch1),
778	>	1, 1, MILLISECONDS));
779	>	periodics.add(p.scheduleWithFixedDelay(countDowner(periodicLatch2),
780	>	1, 1, MILLISECONDS));
781	>	delayeds.add(p.schedule(task, 1, MILLISECONDS));
782	>
783	>	assertTrue(p.getQueue().containsAll(periodics));
784	>	assertTrue(p.getQueue().containsAll(delayeds));
785	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
786	>	assertTrue(p.isShutdown());
787	>	assertFalse(p.isTerminated());
788	>	for (Future<?> periodic : periodics) {
789	>	assertTrue(effectivePeriodicPolicy ^ periodic.isCancelled());
790	>	assertTrue(effectivePeriodicPolicy ^ periodic.isDone());
791	>	}
792	>	for (Future<?> delayed : delayeds) {
793	>	assertTrue(effectiveDelayedPolicy ^ delayed.isCancelled());
794	>	assertTrue(effectiveDelayedPolicy ^ delayed.isDone());
795	>	}
796	>	if (testImplementationDetails) {
797	>	assertEquals(effectivePeriodicPolicy,
798	>	p.getQueue().containsAll(periodics));
799	>	assertEquals(effectiveDelayedPolicy,
800	>	p.getQueue().containsAll(delayeds));
801	>	}
802	>	// Release all pool threads
803	>	unblock.countDown();
804	>
805	>	for (Future<?> delayed : delayeds) {
806	>	if (effectiveDelayedPolicy) {
807	>	assertNull(delayed.get());
808	>	}
809		}
810	<	finally {
811	<	joinPool(p1);
810	>	if (effectivePeriodicPolicy) {
811	>	assertTrue(periodicLatch1.await(LONG_DELAY_MS, MILLISECONDS));
812	>	assertTrue(periodicLatch2.await(LONG_DELAY_MS, MILLISECONDS));
813	>	for (Future<?> periodic : periodics) {
814	>	assertTrue(periodic.cancel(false));
815	>	assertTrue(periodic.isCancelled());
816	>	assertTrue(periodic.isDone());
817	>	}
818		}
819	<	}
819	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
820	>	assertTrue(p.isTerminated());
821	>	assertEquals(2 + (effectiveDelayedPolicy ? 1 : 0), ran.get());
822	>	}}
823
824		/**
825		* completed submit of callable returns result
826		*/
827	<	public void testSubmitCallable() {
828	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
829	<	try {
827	>	public void testSubmitCallable() throws Exception {
828	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
829	>	try (PoolCleaner cleaner = cleaner(e)) {
830		Future<String> future = e.submit(new StringTask());
831		String result = future.get();
832		assertSame(TEST_STRING, result);
833		}
687	–	catch (ExecutionException ex) {
688	–	unexpectedException();
689	–	}
690	–	catch (InterruptedException ex) {
691	–	unexpectedException();
692	–	} finally {
693	–	joinPool(e);
694	–	}
834		}
835
836		/**
837		* completed submit of runnable returns successfully
838		*/
839	<	public void testSubmitRunnable() {
840	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
841	<	try {
839	>	public void testSubmitRunnable() throws Exception {
840	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
841	>	try (PoolCleaner cleaner = cleaner(e)) {
842		Future<?> future = e.submit(new NoOpRunnable());
843		future.get();
844		assertTrue(future.isDone());
845		}
707	–	catch (ExecutionException ex) {
708	–	unexpectedException();
709	–	}
710	–	catch (InterruptedException ex) {
711	–	unexpectedException();
712	–	} finally {
713	–	joinPool(e);
714	–	}
846		}
847
848		/**
849		* completed submit of (runnable, result) returns result
850		*/
851	<	public void testSubmitRunnable2() {
852	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
853	<	try {
851	>	public void testSubmitRunnable2() throws Exception {
852	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
853	>	try (PoolCleaner cleaner = cleaner(e)) {
854		Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING);
855		String result = future.get();
856		assertSame(TEST_STRING, result);
857		}
727	–	catch (ExecutionException ex) {
728	–	unexpectedException();
729	–	}
730	–	catch (InterruptedException ex) {
731	–	unexpectedException();
732	–	} finally {
733	–	joinPool(e);
734	–	}
858		}
859
860		/**
861		* invokeAny(null) throws NPE
862		*/
863	<	public void testInvokeAny1() {
864	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
865	<	try {
866	<	e.invokeAny(null);
867	<	} catch (NullPointerException success) {
868	<	} catch(Exception ex) {
869	<	unexpectedException();
747	<	} finally {
748	<	joinPool(e);
863	>	public void testInvokeAny1() throws Exception {
864	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
865	>	try (PoolCleaner cleaner = cleaner(e)) {
866	>	try {
867	>	e.invokeAny(null);
868	>	shouldThrow();
869	>	} catch (NullPointerException success) {}
870		}
871		}
872
873		/**
874		* invokeAny(empty collection) throws IAE
875		*/
876	<	public void testInvokeAny2() {
877	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
878	<	try {
879	<	e.invokeAny(new ArrayList<Callable<String>>());
880	<	} catch (IllegalArgumentException success) {
881	<	} catch(Exception ex) {
882	<	unexpectedException();
762	<	} finally {
763	<	joinPool(e);
876	>	public void testInvokeAny2() throws Exception {
877	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
878	>	try (PoolCleaner cleaner = cleaner(e)) {
879	>	try {
880	>	e.invokeAny(new ArrayList<Callable<String>>());
881	>	shouldThrow();
882	>	} catch (IllegalArgumentException success) {}
883		}
884		}
885
886		/**
887		* invokeAny(c) throws NPE if c has null elements
888		*/
889	<	public void testInvokeAny3() {
890	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
891	<	try {
892	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
893	<	l.add(new StringTask());
889	>	public void testInvokeAny3() throws Exception {
890	>	CountDownLatch latch = new CountDownLatch(1);
891	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
892	>	try (PoolCleaner cleaner = cleaner(e)) {
893	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
894	>	l.add(latchAwaitingStringTask(latch));
895		l.add(null);
896	<	e.invokeAny(l);
897	<	} catch (NullPointerException success) {
898	<	} catch(Exception ex) {
899	<	unexpectedException();
900	<	} finally {
781	<	joinPool(e);
896	>	try {
897	>	e.invokeAny(l);
898	>	shouldThrow();
899	>	} catch (NullPointerException success) {}
900	>	latch.countDown();
901		}
902		}
903
904		/**
905		* invokeAny(c) throws ExecutionException if no task completes
906		*/
907	<	public void testInvokeAny4() {
908	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
909	<	try {
910	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
907	>	public void testInvokeAny4() throws Exception {
908	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
909	>	try (PoolCleaner cleaner = cleaner(e)) {
910	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
911		l.add(new NPETask());
912	<	e.invokeAny(l);
913	<	} catch (ExecutionException success) {
914	<	} catch(Exception ex) {
915	<	unexpectedException();
916	<	} finally {
917	<	joinPool(e);
912	>	try {
913	>	e.invokeAny(l);
914	>	shouldThrow();
915	>	} catch (ExecutionException success) {
916	>	assertTrue(success.getCause() instanceof NullPointerException);
917	>	}
918		}
919		}
920
921		/**
922		* invokeAny(c) returns result of some task
923		*/
924	<	public void testInvokeAny5() {
925	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
926	<	try {
927	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
924	>	public void testInvokeAny5() throws Exception {
925	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
926	>	try (PoolCleaner cleaner = cleaner(e)) {
927	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
928		l.add(new StringTask());
929		l.add(new StringTask());
930		String result = e.invokeAny(l);
931		assertSame(TEST_STRING, result);
813	–	} catch (ExecutionException success) {
814	–	} catch(Exception ex) {
815	–	unexpectedException();
816	–	} finally {
817	–	joinPool(e);
932		}
933		}
934
935		/**
936		* invokeAll(null) throws NPE
937		*/
938	<	public void testInvokeAll1() {
939	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
940	<	try {
941	<	e.invokeAll(null);
942	<	} catch (NullPointerException success) {
943	<	} catch(Exception ex) {
944	<	unexpectedException();
831	<	} finally {
832	<	joinPool(e);
938	>	public void testInvokeAll1() throws Exception {
939	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
940	>	try (PoolCleaner cleaner = cleaner(e)) {
941	>	try {
942	>	e.invokeAll(null);
943	>	shouldThrow();
944	>	} catch (NullPointerException success) {}
945		}
946		}
947
948		/**
949		* invokeAll(empty collection) returns empty collection
950		*/
951	<	public void testInvokeAll2() {
952	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
953	<	try {
951	>	public void testInvokeAll2() throws Exception {
952	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
953	>	try (PoolCleaner cleaner = cleaner(e)) {
954		List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>());
955		assertTrue(r.isEmpty());
844	–	} catch(Exception ex) {
845	–	unexpectedException();
846	–	} finally {
847	–	joinPool(e);
956		}
957		}
958
959		/**
960		* invokeAll(c) throws NPE if c has null elements
961		*/
962	<	public void testInvokeAll3() {
963	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
964	<	try {
965	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
962	>	public void testInvokeAll3() throws Exception {
963	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
964	>	try (PoolCleaner cleaner = cleaner(e)) {
965	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
966		l.add(new StringTask());
967		l.add(null);
968	<	e.invokeAll(l);
969	<	} catch (NullPointerException success) {
970	<	} catch(Exception ex) {
971	<	unexpectedException();
864	<	} finally {
865	<	joinPool(e);
968	>	try {
969	>	e.invokeAll(l);
970	>	shouldThrow();
971	>	} catch (NullPointerException success) {}
972		}
973		}
974
975		/**
976		* get of invokeAll(c) throws exception on failed task
977		*/
978	<	public void testInvokeAll4() {
979	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
980	<	try {
981	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
978	>	public void testInvokeAll4() throws Exception {
979	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
980	>	try (PoolCleaner cleaner = cleaner(e)) {
981	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
982		l.add(new NPETask());
983	<	List<Future<String>> result = e.invokeAll(l);
984	<	assertEquals(1, result.size());
985	<	for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
986	<	it.next().get();
987	<	} catch(ExecutionException success) {
988	<	} catch(Exception ex) {
989	<	unexpectedException();
990	<	} finally {
885	<	joinPool(e);
983	>	List<Future<String>> futures = e.invokeAll(l);
984	>	assertEquals(1, futures.size());
985	>	try {
986	>	futures.get(0).get();
987	>	shouldThrow();
988	>	} catch (ExecutionException success) {
989	>	assertTrue(success.getCause() instanceof NullPointerException);
990	>	}
991		}
992		}
993
994		/**
995		* invokeAll(c) returns results of all completed tasks
996		*/
997	<	public void testInvokeAll5() {
998	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
999	<	try {
1000	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
997	>	public void testInvokeAll5() throws Exception {
998	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
999	>	try (PoolCleaner cleaner = cleaner(e)) {
1000	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1001		l.add(new StringTask());
1002		l.add(new StringTask());
1003	<	List<Future<String>> result = e.invokeAll(l);
1004	<	assertEquals(2, result.size());
1005	<	for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
1006	<	assertSame(TEST_STRING, it.next().get());
902	<	} catch (ExecutionException success) {
903	<	} catch(Exception ex) {
904	<	unexpectedException();
905	<	} finally {
906	<	joinPool(e);
1003	>	List<Future<String>> futures = e.invokeAll(l);
1004	>	assertEquals(2, futures.size());
1005	>	for (Future<String> future : futures)
1006	>	assertSame(TEST_STRING, future.get());
1007		}
1008		}
1009
1010		/**
1011		* timed invokeAny(null) throws NPE
1012		*/
1013	<	public void testTimedInvokeAny1() {
1014	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1015	<	try {
1016	<	e.invokeAny(null, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1017	<	} catch (NullPointerException success) {
1018	<	} catch(Exception ex) {
1019	<	unexpectedException();
920	<	} finally {
921	<	joinPool(e);
1013	>	public void testTimedInvokeAny1() throws Exception {
1014	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1015	>	try (PoolCleaner cleaner = cleaner(e)) {
1016	>	try {
1017	>	e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS);
1018	>	shouldThrow();
1019	>	} catch (NullPointerException success) {}
1020		}
1021		}
1022
1023		/**
1024		* timed invokeAny(,,null) throws NPE
1025		*/
1026	<	public void testTimedInvokeAnyNullTimeUnit() {
1027	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1028	<	try {
1029	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1026	>	public void testTimedInvokeAnyNullTimeUnit() throws Exception {
1027	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1028	>	try (PoolCleaner cleaner = cleaner(e)) {
1029	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1030		l.add(new StringTask());
1031	<	e.invokeAny(l, MEDIUM_DELAY_MS, null);
1032	<	} catch (NullPointerException success) {
1033	<	} catch(Exception ex) {
1034	<	unexpectedException();
937	<	} finally {
938	<	joinPool(e);
1031	>	try {
1032	>	e.invokeAny(l, MEDIUM_DELAY_MS, null);
1033	>	shouldThrow();
1034	>	} catch (NullPointerException success) {}
1035		}
1036		}
1037
1038		/**
1039		* timed invokeAny(empty collection) throws IAE
1040		*/
1041	<	public void testTimedInvokeAny2() {
1042	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1043	<	try {
1044	<	e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1045	<	} catch (IllegalArgumentException success) {
1046	<	} catch(Exception ex) {
1047	<	unexpectedException();
952	<	} finally {
953	<	joinPool(e);
1041	>	public void testTimedInvokeAny2() throws Exception {
1042	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1043	>	try (PoolCleaner cleaner = cleaner(e)) {
1044	>	try {
1045	>	e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
1046	>	shouldThrow();
1047	>	} catch (IllegalArgumentException success) {}
1048		}
1049		}
1050
1051		/**
1052		* timed invokeAny(c) throws NPE if c has null elements
1053		*/
1054	<	public void testTimedInvokeAny3() {
1055	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1056	<	try {
1057	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1058	<	l.add(new StringTask());
1054	>	public void testTimedInvokeAny3() throws Exception {
1055	>	CountDownLatch latch = new CountDownLatch(1);
1056	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1057	>	try (PoolCleaner cleaner = cleaner(e)) {
1058	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1059	>	l.add(latchAwaitingStringTask(latch));
1060		l.add(null);
1061	<	e.invokeAny(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1062	<	} catch (NullPointerException success) {
1063	<	} catch(Exception ex) {
1064	<	ex.printStackTrace();
1065	<	unexpectedException();
971	<	} finally {
972	<	joinPool(e);
1061	>	try {
1062	>	e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1063	>	shouldThrow();
1064	>	} catch (NullPointerException success) {}
1065	>	latch.countDown();
1066		}
1067		}
1068
1069		/**
1070		* timed invokeAny(c) throws ExecutionException if no task completes
1071		*/
1072	<	public void testTimedInvokeAny4() {
1073	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1074	<	try {
1075	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1072	>	public void testTimedInvokeAny4() throws Exception {
1073	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1074	>	try (PoolCleaner cleaner = cleaner(e)) {
1075	>	long startTime = System.nanoTime();
1076	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1077		l.add(new NPETask());
1078	<	e.invokeAny(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1079	<	} catch(ExecutionException success) {
1080	<	} catch(Exception ex) {
1081	<	unexpectedException();
1082	<	} finally {
1083	<	joinPool(e);
1078	>	try {
1079	>	e.invokeAny(l, LONG_DELAY_MS, MILLISECONDS);
1080	>	shouldThrow();
1081	>	} catch (ExecutionException success) {
1082	>	assertTrue(success.getCause() instanceof NullPointerException);
1083	>	}
1084	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1085		}
1086		}
1087
1088		/**
1089		* timed invokeAny(c) returns result of some task
1090		*/
1091	<	public void testTimedInvokeAny5() {
1092	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1093	<	try {
1094	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1091	>	public void testTimedInvokeAny5() throws Exception {
1092	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1093	>	try (PoolCleaner cleaner = cleaner(e)) {
1094	>	long startTime = System.nanoTime();
1095	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1096		l.add(new StringTask());
1097		l.add(new StringTask());
1098	<	String result = e.invokeAny(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1098	>	String result = e.invokeAny(l, LONG_DELAY_MS, MILLISECONDS);
1099		assertSame(TEST_STRING, result);
1100	<	} catch (ExecutionException success) {
1005	<	} catch(Exception ex) {
1006	<	unexpectedException();
1007	<	} finally {
1008	<	joinPool(e);
1100	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1101		}
1102		}
1103
1104		/**
1105		* timed invokeAll(null) throws NPE
1106		*/
1107	<	public void testTimedInvokeAll1() {
1108	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1109	<	try {
1110	<	e.invokeAll(null, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1111	<	} catch (NullPointerException success) {
1112	<	} catch(Exception ex) {
1113	<	unexpectedException();
1022	<	} finally {
1023	<	joinPool(e);
1107	>	public void testTimedInvokeAll1() throws Exception {
1108	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1109	>	try (PoolCleaner cleaner = cleaner(e)) {
1110	>	try {
1111	>	e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS);
1112	>	shouldThrow();
1113	>	} catch (NullPointerException success) {}
1114		}
1115		}
1116
1117		/**
1118		* timed invokeAll(,,null) throws NPE
1119		*/
1120	<	public void testTimedInvokeAllNullTimeUnit() {
1121	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1122	<	try {
1123	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1120	>	public void testTimedInvokeAllNullTimeUnit() throws Exception {
1121	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1122	>	try (PoolCleaner cleaner = cleaner(e)) {
1123	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1124		l.add(new StringTask());
1125	<	e.invokeAll(l, MEDIUM_DELAY_MS, null);
1126	<	} catch (NullPointerException success) {
1127	<	} catch(Exception ex) {
1128	<	unexpectedException();
1039	<	} finally {
1040	<	joinPool(e);
1125	>	try {
1126	>	e.invokeAll(l, MEDIUM_DELAY_MS, null);
1127	>	shouldThrow();
1128	>	} catch (NullPointerException success) {}
1129		}
1130		}
1131
1132		/**
1133		* timed invokeAll(empty collection) returns empty collection
1134		*/
1135	<	public void testTimedInvokeAll2() {
1136	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1137	<	try {
1138	<	List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1135	>	public void testTimedInvokeAll2() throws Exception {
1136	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1137	>	try (PoolCleaner cleaner = cleaner(e)) {
1138	>	List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(),
1139	>	MEDIUM_DELAY_MS, MILLISECONDS);
1140		assertTrue(r.isEmpty());
1052	–	} catch(Exception ex) {
1053	–	unexpectedException();
1054	–	} finally {
1055	–	joinPool(e);
1141		}
1142		}
1143
1144		/**
1145		* timed invokeAll(c) throws NPE if c has null elements
1146		*/
1147	<	public void testTimedInvokeAll3() {
1148	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1149	<	try {
1150	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1147	>	public void testTimedInvokeAll3() throws Exception {
1148	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1149	>	try (PoolCleaner cleaner = cleaner(e)) {
1150	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1151		l.add(new StringTask());
1152		l.add(null);
1153	<	e.invokeAll(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1154	<	} catch (NullPointerException success) {
1155	<	} catch(Exception ex) {
1156	<	unexpectedException();
1072	<	} finally {
1073	<	joinPool(e);
1153	>	try {
1154	>	e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1155	>	shouldThrow();
1156	>	} catch (NullPointerException success) {}
1157		}
1158		}
1159
1160		/**
1161		* get of element of invokeAll(c) throws exception on failed task
1162		*/
1163	<	public void testTimedInvokeAll4() {
1164	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1165	<	try {
1166	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1163	>	public void testTimedInvokeAll4() throws Exception {
1164	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1165	>	try (PoolCleaner cleaner = cleaner(e)) {
1166	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1167		l.add(new NPETask());
1168	<	List<Future<String>> result = e.invokeAll(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1169	<	assertEquals(1, result.size());
1170	<	for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
1171	<	it.next().get();
1172	<	} catch(ExecutionException success) {
1173	<	} catch(Exception ex) {
1174	<	unexpectedException();
1175	<	} finally {
1176	<	joinPool(e);
1168	>	List<Future<String>> futures =
1169	>	e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS);
1170	>	assertEquals(1, futures.size());
1171	>	try {
1172	>	futures.get(0).get();
1173	>	shouldThrow();
1174	>	} catch (ExecutionException success) {
1175	>	assertTrue(success.getCause() instanceof NullPointerException);
1176	>	}
1177		}
1178		}
1179
1180		/**
1181		* timed invokeAll(c) returns results of all completed tasks
1182		*/
1183	<	public void testTimedInvokeAll5() {
1184	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1185	<	try {
1186	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1183	>	public void testTimedInvokeAll5() throws Exception {
1184	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1185	>	try (PoolCleaner cleaner = cleaner(e)) {
1186	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1187		l.add(new StringTask());
1188		l.add(new StringTask());
1189	<	List<Future<String>> result = e.invokeAll(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1190	<	assertEquals(2, result.size());
1191	<	for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
1192	<	assertSame(TEST_STRING, it.next().get());
1193	<	} catch (ExecutionException success) {
1111	<	} catch(Exception ex) {
1112	<	unexpectedException();
1113	<	} finally {
1114	<	joinPool(e);
1189	>	List<Future<String>> futures =
1190	>	e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS);
1191	>	assertEquals(2, futures.size());
1192	>	for (Future<String> future : futures)
1193	>	assertSame(TEST_STRING, future.get());
1194		}
1195		}
1196
1197		/**
1198		* timed invokeAll(c) cancels tasks not completed by timeout
1199		*/
1200	<	public void testTimedInvokeAll6() {
1201	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1202	<	try {
1203	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1204	<	l.add(new StringTask());
1205	<	l.add(Executors.callable(new MediumPossiblyInterruptedRunnable(), TEST_STRING));
1206	<	l.add(new StringTask());
1207	<	List<Future<String>> result = e.invokeAll(l, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
1208	<	assertEquals(3, result.size());
1209	<	Iterator<Future<String>> it = result.iterator();
1210	<	Future<String> f1 = it.next();
1211	<	Future<String> f2 = it.next();
1212	<	Future<String> f3 = it.next();
1213	<	assertTrue(f1.isDone());
1214	<	assertTrue(f2.isDone());
1215	<	assertTrue(f3.isDone());
1216	<	assertFalse(f1.isCancelled());
1217	<	assertTrue(f2.isCancelled());
1218	<	} catch(Exception ex) {
1219	<	unexpectedException();
1220	<	} finally {
1221	<	joinPool(e);
1200	>	public void testTimedInvokeAll6() throws Exception {
1201	>	for (long timeout = timeoutMillis();;) {
1202	>	final CountDownLatch done = new CountDownLatch(1);
1203	>	final Callable<String> waiter = new CheckedCallable<String>() {
1204	>	public String realCall() {
1205	>	try { done.await(LONG_DELAY_MS, MILLISECONDS); }
1206	>	catch (InterruptedException ok) {}
1207	>	return "1"; }};
1208	>	final ExecutorService p = new ScheduledThreadPoolExecutor(2);
1209	>	try (PoolCleaner cleaner = cleaner(p, done)) {
1210	>	List<Callable<String>> tasks = new ArrayList<>();
1211	>	tasks.add(new StringTask("0"));
1212	>	tasks.add(waiter);
1213	>	tasks.add(new StringTask("2"));
1214	>	long startTime = System.nanoTime();
1215	>	List<Future<String>> futures =
1216	>	p.invokeAll(tasks, timeout, MILLISECONDS);
1217	>	assertEquals(tasks.size(), futures.size());
1218	>	assertTrue(millisElapsedSince(startTime) >= timeout);
1219	>	for (Future future : futures)
1220	>	assertTrue(future.isDone());
1221	>	assertTrue(futures.get(1).isCancelled());
1222	>	try {
1223	>	assertEquals("0", futures.get(0).get());
1224	>	assertEquals("2", futures.get(2).get());
1225	>	break;
1226	>	} catch (CancellationException retryWithLongerTimeout) {
1227	>	timeout *= 2;
1228	>	if (timeout >= LONG_DELAY_MS / 2)
1229	>	fail("expected exactly one task to be cancelled");
1230	>	}
1231	>	}
1232		}
1233		}
1234
1235	+	/**
1236	+	* A fixed delay task with overflowing period should not prevent a
1237	+	* one-shot task from executing.
1238	+	* https://bugs.openjdk.java.net/browse/JDK-8051859
1239	+	*/
1240	+	public void testScheduleWithFixedDelay_overflow() throws Exception {
1241	+	final CountDownLatch delayedDone = new CountDownLatch(1);
1242	+	final CountDownLatch immediateDone = new CountDownLatch(1);
1243	+	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
1244	+	try (PoolCleaner cleaner = cleaner(p)) {
1245	+	final Runnable immediate = new Runnable() { public void run() {
1246	+	immediateDone.countDown();
1247	+	}};
1248	+	final Runnable delayed = new Runnable() { public void run() {
1249	+	delayedDone.countDown();
1250	+	p.submit(immediate);
1251	+	}};
1252	+	p.scheduleWithFixedDelay(delayed, 0L, Long.MAX_VALUE, SECONDS);
1253	+	await(delayedDone);
1254	+	await(immediateDone);
1255	+	}
1256	+	}
1257
1258		}

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