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

Comparing jsr166/src/test/tck/ScheduledExecutorTest.java (file contents):
Revision 1.8 by dl, Sun Oct 5 23:00:40 2003 UTC vs.
Revision 1.66 by jsr166, Mon Oct 5 21:54:33 2015 UTC

#	Line 1 | Line 1
1		/*
2	<	* Written by members of JCP JSR-166 Expert Group and released to the
3	<	* public domain. Use, modify, and redistribute this code in any way
4	<	* without acknowledgement. Other contributors include Andrew Wright,
5	<	* Jeffrey Hayes, Pat Fischer, Mike Judd.
2	>	* Written by Doug Lea with assistance from members of JCP JSR-166
3	>	* Expert Group and released to the public domain, as explained at
4	>	* http://creativecommons.org/publicdomain/zero/1.0/
5	>	* Other contributors include Andrew Wright, Jeffrey Hayes,
6	>	* Pat Fisher, Mike Judd.
7		*/
8
9	<	import junit.framework.*;
10	<	import java.util.*;
11	<	import java.util.concurrent.*;
9	>	import static java.util.concurrent.TimeUnit.MILLISECONDS;
10	>	import static java.util.concurrent.TimeUnit.SECONDS;
11	>
12	>	import java.util.ArrayList;
13	>	import java.util.HashSet;
14	>	import java.util.List;
15	>	import java.util.concurrent.BlockingQueue;
16	>	import java.util.concurrent.Callable;
17	>	import java.util.concurrent.CancellationException;
18	>	import java.util.concurrent.CountDownLatch;
19	>	import java.util.concurrent.ExecutionException;
20	>	import java.util.concurrent.Executors;
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.AtomicInteger;
29	>
30	>	import junit.framework.Test;
31	>	import junit.framework.TestSuite;
32
33		public class ScheduledExecutorTest extends JSR166TestCase {
34		public static void main(String[] args) {
35	<	junit.textui.TestRunner.run (suite());
35	>	main(suite(), args);
36		}
37		public static Test suite() {
38	<	return new TestSuite(ScheduledExecutorTest.class);
38	>	return new TestSuite(ScheduledExecutorTest.class);
39		}
40
20	–
41		/**
42		* execute successfully executes a runnable
43		*/
44	<	public void testExecute() {
45	<	try {
46	<	TrackedShortRunnable runnable =new TrackedShortRunnable();
47	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
48	<	p1.execute(runnable);
49	<	assertFalse(runnable.done);
50	<	Thread.sleep(SHORT_DELAY_MS);
51	<	p1.shutdown();
32	<	try {
33	<	Thread.sleep(MEDIUM_DELAY_MS);
34	<	} catch(InterruptedException e){
35	<	unexpectedException();
36	<	}
37	<	assertTrue(runnable.done);
38	<	p1.shutdown();
39	<	joinPool(p1);
44	>	public void testExecute() throws InterruptedException {
45	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
46	>	try (PoolCleaner cleaner = cleaner(p)) {
47	>	final CountDownLatch done = new CountDownLatch(1);
48	>	final Runnable task = new CheckedRunnable() {
49	>	public void realRun() { done.countDown(); }};
50	>	p.execute(task);
51	>	assertTrue(done.await(SMALL_DELAY_MS, MILLISECONDS));
52		}
41	–	catch(Exception e){
42	–	unexpectedException();
43	–	}
44	–
53		}
54
47	–
55		/**
56		* delayed schedule of callable successfully executes after delay
57		*/
58	<	public void testSchedule1() {
59	<	try {
60	<	TrackedCallable callable = new TrackedCallable();
61	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
62	<	Future f = p1.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
63	<	assertFalse(callable.done);
64	<	Thread.sleep(MEDIUM_DELAY_MS);
65	<	assertTrue(callable.done);
66	<	assertEquals(Boolean.TRUE, f.get());
67	<	p1.shutdown();
68	<	joinPool(p1);
69	<	} catch(RejectedExecutionException e){}
70	<	catch(Exception e){
71	<	unexpectedException();
58	>	public void testSchedule1() throws Exception {
59	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
60	>	try (PoolCleaner cleaner = cleaner(p)) {
61	>	final long startTime = System.nanoTime();
62	>	final CountDownLatch done = new CountDownLatch(1);
63	>	Callable task = new CheckedCallable<Boolean>() {
64	>	public Boolean realCall() {
65	>	done.countDown();
66	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
67	>	return Boolean.TRUE;
68	>	}};
69	>	Future f = p.schedule(task, timeoutMillis(), MILLISECONDS);
70	>	assertSame(Boolean.TRUE, f.get());
71	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
72	>	assertTrue(done.await(0L, MILLISECONDS));
73		}
74		}
75
76		/**
77	<	*  delayed schedule of runnable successfully executes after delay
78	<	*/
79	<	public void testSchedule3() {
80	<	try {
81	<	TrackedShortRunnable runnable = new TrackedShortRunnable();
82	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
83	<	p1.schedule(runnable, SMALL_DELAY_MS, TimeUnit.MILLISECONDS);
84	<	Thread.sleep(SHORT_DELAY_MS);
85	<	assertFalse(runnable.done);
86	<	Thread.sleep(MEDIUM_DELAY_MS);
87	<	assertTrue(runnable.done);
88	<	p1.shutdown();
89	<	joinPool(p1);
90	<	} catch(Exception e){
91	<	unexpectedException();
77	>	* delayed schedule of runnable successfully executes after delay
78	>	*/
79	>	public void testSchedule3() throws Exception {
80	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
81	>	try (PoolCleaner cleaner = cleaner(p)) {
82	>	final long startTime = System.nanoTime();
83	>	final CountDownLatch done = new CountDownLatch(1);
84	>	Runnable task = new CheckedRunnable() {
85	>	public void realRun() {
86	>	done.countDown();
87	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
88	>	}};
89	>	Future f = p.schedule(task, timeoutMillis(), MILLISECONDS);
90	>	await(done);
91	>	assertNull(f.get(LONG_DELAY_MS, MILLISECONDS));
92	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
93		}
94		}
95	<
95	>
96		/**
97		* scheduleAtFixedRate executes runnable after given initial delay
98		*/
99	<	public void testSchedule4() {
100	<	try {
101	<	TrackedShortRunnable runnable = new TrackedShortRunnable();
102	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
103	<	ScheduledCancellable h = p1.scheduleAtFixedRate(runnable, SHORT_DELAY_MS, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
104	<	assertFalse(runnable.done);
105	<	Thread.sleep(MEDIUM_DELAY_MS);
106	<	assertTrue(runnable.done);
107	<	h.cancel(true);
108	<	p1.shutdown();
109	<	joinPool(p1);
110	<	} catch(Exception e){
111	<	unexpectedException();
99	>	public void testSchedule4() throws Exception {
100	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
101	>	try (PoolCleaner cleaner = cleaner(p)) {
102	>	final long startTime = System.nanoTime();
103	>	final CountDownLatch done = new CountDownLatch(1);
104	>	Runnable task = new CheckedRunnable() {
105	>	public void realRun() {
106	>	done.countDown();
107	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
108	>	}};
109	>	ScheduledFuture f =
110	>	p.scheduleAtFixedRate(task, timeoutMillis(),
111	>	LONG_DELAY_MS, MILLISECONDS);
112	>	await(done);
113	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
114	>	f.cancel(true);
115		}
116		}
117
118		/**
119		* scheduleWithFixedDelay executes runnable after given initial delay
120		*/
121	<	public void testSchedule5() {
122	<	try {
123	<	TrackedShortRunnable runnable = new TrackedShortRunnable();
124	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
125	<	ScheduledCancellable h = p1.scheduleWithFixedDelay(runnable, SHORT_DELAY_MS, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
126	<	assertFalse(runnable.done);
127	<	Thread.sleep(MEDIUM_DELAY_MS);
128	<	assertTrue(runnable.done);
129	<	h.cancel(true);
130	<	p1.shutdown();
131	<	joinPool(p1);
132	<	} catch(Exception e){
133	<	unexpectedException();
121	>	public void testSchedule5() throws Exception {
122	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
123	>	try (PoolCleaner cleaner = cleaner(p)) {
124	>	final long startTime = System.nanoTime();
125	>	final CountDownLatch done = new CountDownLatch(1);
126	>	Runnable task = new CheckedRunnable() {
127	>	public void realRun() {
128	>	done.countDown();
129	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
130	>	}};
131	>	ScheduledFuture f =
132	>	p.scheduleWithFixedDelay(task, timeoutMillis(),
133	>	LONG_DELAY_MS, MILLISECONDS);
134	>	await(done);
135	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
136	>	f.cancel(true);
137	>	}
138	>	}
139	>
140	>	static class RunnableCounter implements Runnable {
141	>	AtomicInteger count = new AtomicInteger(0);
142	>	public void run() { count.getAndIncrement(); }
143	>	}
144	>
145	>	/**
146	>	* scheduleAtFixedRate executes series of tasks at given rate
147	>	*/
148	>	public void testFixedRateSequence() throws InterruptedException {
149	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
150	>	try (PoolCleaner cleaner = cleaner(p)) {
151	>	for (int delay = 1; delay <= LONG_DELAY_MS; delay *= 3) {
152	>	long startTime = System.nanoTime();
153	>	int cycles = 10;
154	>	final CountDownLatch done = new CountDownLatch(cycles);
155	>	Runnable task = new CheckedRunnable() {
156	>	public void realRun() { done.countDown(); }};
157	>	ScheduledFuture h =
158	>	p.scheduleAtFixedRate(task, 0, delay, MILLISECONDS);
159	>	done.await();
160	>	h.cancel(true);
161	>	double normalizedTime =
162	>	(double) millisElapsedSince(startTime) / delay;
163	>	if (normalizedTime >= cycles - 1 &&
164	>	normalizedTime <= cycles)
165	>	return;
166	>	}
167	>	throw new AssertionError("unexpected execution rate");
168		}
169		}
170	<
170	>
171		/**
172	<	*  execute (null) throws NPE
172	>	* scheduleWithFixedDelay executes series of tasks with given period
173		*/
174	<	public void testExecuteNull() {
175	<	ScheduledExecutor se = null;
176	<	try {
177	<	se = new ScheduledExecutor(1);
178	<	se.execute(null);
179	<	shouldThrow();
180	<	} catch(NullPointerException success){}
181	<	catch(Exception e){
182	<	unexpectedException();
174	>	public void testFixedDelaySequence() throws InterruptedException {
175	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
176	>	try (PoolCleaner cleaner = cleaner(p)) {
177	>	for (int delay = 1; delay <= LONG_DELAY_MS; delay *= 3) {
178	>	long startTime = System.nanoTime();
179	>	int cycles = 10;
180	>	final CountDownLatch done = new CountDownLatch(cycles);
181	>	Runnable task = new CheckedRunnable() {
182	>	public void realRun() { done.countDown(); }};
183	>	ScheduledFuture h =
184	>	p.scheduleWithFixedDelay(task, 0, delay, MILLISECONDS);
185	>	done.await();
186	>	h.cancel(true);
187	>	double normalizedTime =
188	>	(double) millisElapsedSince(startTime) / delay;
189	>	if (normalizedTime >= cycles - 1 &&
190	>	normalizedTime <= cycles)
191	>	return;
192	>	}
193	>	throw new AssertionError("unexpected execution rate");
194		}
138	–
139	–	joinPool(se);
195		}
196
197		/**
198	<	* schedule (null) throws NPE
198	>	* execute(null) throws NPE
199		*/
200	<	public void testScheduleNull() {
201	<	ScheduledExecutor se = new ScheduledExecutor(1);
202	<	try {
203	<	TrackedCallable callable = null;
204	<	Future f = se.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
205	<	shouldThrow();
206	<	} catch(NullPointerException success){}
152	<	catch(Exception e){
153	<	unexpectedException();
200	>	public void testExecuteNull() throws InterruptedException {
201	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
202	>	try (PoolCleaner cleaner = cleaner(p)) {
203	>	try {
204	>	p.execute(null);
205	>	shouldThrow();
206	>	} catch (NullPointerException success) {}
207		}
155	–	joinPool(se);
208		}
209	<
209	>
210		/**
211	<	* execute throws RejectedExecutionException if shutdown
211	>	* schedule(null) throws NPE
212		*/
213	<	public void testSchedule1_RejectedExecutionException() {
214	<	ScheduledExecutor se = new ScheduledExecutor(1);
215	<	try {
216	<	se.shutdown();
217	<	se.schedule(new NoOpRunnable(),
218	<	MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
219	<	shouldThrow();
220	<	} catch(RejectedExecutionException success){
213	>	public void testScheduleNull() throws InterruptedException {
214	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
215	>	try (PoolCleaner cleaner = cleaner(p)) {
216	>	try {
217	>	TrackedCallable callable = null;
218	>	Future f = p.schedule(callable, SHORT_DELAY_MS, MILLISECONDS);
219	>	shouldThrow();
220	>	} catch (NullPointerException success) {}
221		}
222	<	joinPool(se);
222	>	}
223
224	+	/**
225	+	* execute throws RejectedExecutionException if shutdown
226	+	*/
227	+	public void testSchedule1_RejectedExecutionException() throws InterruptedException {
228	+	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
229	+	try (PoolCleaner cleaner = cleaner(p)) {
230	+	try {
231	+	p.shutdown();
232	+	p.schedule(new NoOpRunnable(),
233	+	MEDIUM_DELAY_MS, MILLISECONDS);
234	+	shouldThrow();
235	+	} catch (RejectedExecutionException success) {
236	+	} catch (SecurityException ok) {}
237	+	}
238		}
239
240		/**
241		* schedule throws RejectedExecutionException if shutdown
242		*/
243	<	public void testSchedule2_RejectedExecutionException() {
244	<	ScheduledExecutor se = new ScheduledExecutor(1);
245	<	try {
246	<	se.shutdown();
247	<	se.schedule(new NoOpCallable(),
248	<	MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
249	<	shouldThrow();
250	<	} catch(RejectedExecutionException success){
243	>	public void testSchedule2_RejectedExecutionException() throws InterruptedException {
244	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
245	>	try (PoolCleaner cleaner = cleaner(p)) {
246	>	try {
247	>	p.shutdown();
248	>	p.schedule(new NoOpCallable(),
249	>	MEDIUM_DELAY_MS, MILLISECONDS);
250	>	shouldThrow();
251	>	} catch (RejectedExecutionException success) {
252	>	} catch (SecurityException ok) {}
253		}
186	–	joinPool(se);
254		}
255
256		/**
257		* schedule callable throws RejectedExecutionException if shutdown
258		*/
259	<	public void testSchedule3_RejectedExecutionException() {
260	<	ScheduledExecutor se = new ScheduledExecutor(1);
261	<	try {
262	<	se.shutdown();
263	<	se.schedule(new NoOpCallable(),
264	<	MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
265	<	shouldThrow();
266	<	} catch(RejectedExecutionException success){
267	<	}
268	<	joinPool(se);
259	>	public void testSchedule3_RejectedExecutionException() throws InterruptedException {
260	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
261	>	try (PoolCleaner cleaner = cleaner(p)) {
262	>	try {
263	>	p.shutdown();
264	>	p.schedule(new NoOpCallable(),
265	>	MEDIUM_DELAY_MS, MILLISECONDS);
266	>	shouldThrow();
267	>	} catch (RejectedExecutionException success) {
268	>	} catch (SecurityException ok) {}
269	>	}
270		}
271
272		/**
273	<	*  scheduleAtFixedRate throws RejectedExecutionException if shutdown
274	<	*/
275	<	public void testScheduleAtFixedRate1_RejectedExecutionException() {
276	<	ScheduledExecutor se = new ScheduledExecutor(1);
277	<	try {
278	<	se.shutdown();
279	<	se.scheduleAtFixedRate(new NoOpRunnable(),
280	<	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
281	<	shouldThrow();
282	<	} catch(RejectedExecutionException success){
283	<	}
284	<	joinPool(se);
273	>	* scheduleAtFixedRate throws RejectedExecutionException if shutdown
274	>	*/
275	>	public void testScheduleAtFixedRate1_RejectedExecutionException() throws InterruptedException {
276	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
277	>	try (PoolCleaner cleaner = cleaner(p)) {
278	>	try {
279	>	p.shutdown();
280	>	p.scheduleAtFixedRate(new NoOpRunnable(),
281	>	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS);
282	>	shouldThrow();
283	>	} catch (RejectedExecutionException success) {
284	>	} catch (SecurityException ok) {}
285	>	}
286		}
287	<
287	>
288		/**
289		* scheduleWithFixedDelay throws RejectedExecutionException if shutdown
290		*/
291	<	public void testScheduleWithFixedDelay1_RejectedExecutionException() {
292	<	ScheduledExecutor se = new ScheduledExecutor(1);
293	<	try {
294	<	se.shutdown();
295	<	se.scheduleWithFixedDelay(new NoOpRunnable(),
296	<	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
297	<	shouldThrow();
298	<	} catch(RejectedExecutionException success){
299	<	}
300	<	joinPool(se);
291	>	public void testScheduleWithFixedDelay1_RejectedExecutionException() throws InterruptedException {
292	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
293	>	try (PoolCleaner cleaner = cleaner(p)) {
294	>	try {
295	>	p.shutdown();
296	>	p.scheduleWithFixedDelay(new NoOpRunnable(),
297	>	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS);
298	>	shouldThrow();
299	>	} catch (RejectedExecutionException success) {
300	>	} catch (SecurityException ok) {}
301	>	}
302		}
303
304		/**
305	<	*  getActiveCount increases but doesn't overestimate, when a
306	<	*  thread becomes active
307	<	*/
308	<	public void testGetActiveCount() {
309	<	ScheduledExecutor p2 = new ScheduledExecutor(2);
310	<	assertEquals(0, p2.getActiveCount());
311	<	p2.execute(new SmallRunnable());
312	<	try {
313	<	Thread.sleep(SHORT_DELAY_MS);
314	<	} catch(Exception e){
315	<	unexpectedException();
316	<	}
317	<	assertEquals(1, p2.getActiveCount());
318	<	joinPool(p2);
319	<	}
320	<
321	<	/**
322	<	*    getCompletedTaskCount increases, but doesn't overestimate,
253	<	*   when tasks complete
254	<	*/
255	<	public void testGetCompletedTaskCount() {
256	<	ScheduledExecutor p2 = new ScheduledExecutor(2);
257	<	assertEquals(0, p2.getCompletedTaskCount());
258	<	p2.execute(new SmallRunnable());
259	<	try {
260	<	Thread.sleep(MEDIUM_DELAY_MS);
261	<	} catch(Exception e){
262	<	unexpectedException();
305	>	* getActiveCount increases but doesn't overestimate, when a
306	>	* thread becomes active
307	>	*/
308	>	public void testGetActiveCount() throws InterruptedException {
309	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(2);
310	>	try (PoolCleaner cleaner = cleaner(p)) {
311	>	final CountDownLatch threadStarted = new CountDownLatch(1);
312	>	final CountDownLatch done = new CountDownLatch(1);
313	>	assertEquals(0, p.getActiveCount());
314	>	p.execute(new CheckedRunnable() {
315	>	public void realRun() throws InterruptedException {
316	>	threadStarted.countDown();
317	>	assertEquals(1, p.getActiveCount());
318	>	done.await();
319	>	}});
320	>	assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
321	>	assertEquals(1, p.getActiveCount());
322	>	done.countDown();
323		}
264	–	assertEquals(1, p2.getCompletedTaskCount());
265	–	joinPool(p2);
324		}
325	<
325	>
326		/**
327	<	*  getCorePoolSize returns size given in constructor if not otherwise set
328	<	*/
329	<	public void testGetCorePoolSize() {
330	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
331	<	assertEquals(1, p1.getCorePoolSize());
332	<	joinPool(p1);
327	>	* getCompletedTaskCount increases, but doesn't overestimate,
328	>	* when tasks complete
329	>	*/
330	>	public void testGetCompletedTaskCount() throws InterruptedException {
331	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(2);
332	>	try (PoolCleaner cleaner = cleaner(p)) {
333	>	final CountDownLatch threadStarted = new CountDownLatch(1);
334	>	final CountDownLatch threadProceed = new CountDownLatch(1);
335	>	final CountDownLatch threadDone = new CountDownLatch(1);
336	>	assertEquals(0, p.getCompletedTaskCount());
337	>	p.execute(new CheckedRunnable() {
338	>	public void realRun() throws InterruptedException {
339	>	threadStarted.countDown();
340	>	assertEquals(0, p.getCompletedTaskCount());
341	>	threadProceed.await();
342	>	threadDone.countDown();
343	>	}});
344	>	await(threadStarted);
345	>	assertEquals(0, p.getCompletedTaskCount());
346	>	threadProceed.countDown();
347	>	threadDone.await();
348	>	long startTime = System.nanoTime();
349	>	while (p.getCompletedTaskCount() != 1) {
350	>	if (millisElapsedSince(startTime) > LONG_DELAY_MS)
351	>	fail("timed out");
352	>	Thread.yield();
353	>	}
354	>	}
355		}
356	<
356	>
357		/**
358	<	*    getLargestPoolSize increases, but doesn't overestimate, when
279	<	*   multiple threads active
358	>	* getCorePoolSize returns size given in constructor if not otherwise set
359		*/
360	<	public void testGetLargestPoolSize() {
361	<	ScheduledExecutor p2 = new ScheduledExecutor(2);
362	<	assertEquals(0, p2.getLargestPoolSize());
363	<	p2.execute(new SmallRunnable());
364	<	p2.execute(new SmallRunnable());
365	<	try {
366	<	Thread.sleep(SHORT_DELAY_MS);
367	<	} catch(Exception e){
368	<	unexpectedException();
369	<	}
370	<	assertEquals(2, p2.getLargestPoolSize());
371	<	joinPool(p2);
372	<	}
373	<
374	<	/**
375	<	*   getPoolSize increases, but doesn't overestimate, when threads
376	<	*   become active
377	<	*/
378	<	public void testGetPoolSize() {
379	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
380	<	assertEquals(0, p1.getPoolSize());
381	<	p1.execute(new SmallRunnable());
382	<	assertEquals(1, p1.getPoolSize());
383	<	joinPool(p1);
384	<	}
385	<
386	<	/**
387	<	*    getTaskCount increases, but doesn't overestimate, when tasks
388	<	*    submitted
389	<	*/
390	<	public void testGetTaskCount() {
391	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
392	<	assertEquals(0, p1.getTaskCount());
393	<	for(int i = 0; i < 5; i++)
394	<	p1.execute(new SmallRunnable());
395	<	try {
396	<	Thread.sleep(SHORT_DELAY_MS);
397	<	} catch(Exception e){
398	<	unexpectedException();
360	>	public void testGetCorePoolSize() throws InterruptedException {
361	>	ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
362	>	try (PoolCleaner cleaner = cleaner(p)) {
363	>	assertEquals(1, p.getCorePoolSize());
364	>	}
365	>	}
366	>
367	>	/**
368	>	* getLargestPoolSize increases, but doesn't overestimate, when
369	>	* multiple threads active
370	>	*/
371	>	public void testGetLargestPoolSize() throws InterruptedException {
372	>	final int THREADS = 3;
373	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(THREADS);
374	>	final CountDownLatch threadsStarted = new CountDownLatch(THREADS);
375	>	final CountDownLatch done = new CountDownLatch(1);
376	>	try (PoolCleaner cleaner = cleaner(p)) {
377	>	assertEquals(0, p.getLargestPoolSize());
378	>	for (int i = 0; i < THREADS; i++)
379	>	p.execute(new CheckedRunnable() {
380	>	public void realRun() throws InterruptedException {
381	>	threadsStarted.countDown();
382	>	done.await();
383	>	assertEquals(THREADS, p.getLargestPoolSize());
384	>	}});
385	>	assertTrue(threadsStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
386	>	assertEquals(THREADS, p.getLargestPoolSize());
387	>	done.countDown();
388	>	}
389	>	assertEquals(THREADS, p.getLargestPoolSize());
390	>	}
391	>
392	>	/**
393	>	* getPoolSize increases, but doesn't overestimate, when threads
394	>	* become active
395	>	*/
396	>	public void testGetPoolSize() throws InterruptedException {
397	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
398	>	final CountDownLatch threadStarted = new CountDownLatch(1);
399	>	final CountDownLatch done = new CountDownLatch(1);
400	>	try (PoolCleaner cleaner = cleaner(p)) {
401	>	assertEquals(0, p.getPoolSize());
402	>	p.execute(new CheckedRunnable() {
403	>	public void realRun() throws InterruptedException {
404	>	threadStarted.countDown();
405	>	assertEquals(1, p.getPoolSize());
406	>	done.await();
407	>	}});
408	>	assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
409	>	assertEquals(1, p.getPoolSize());
410	>	done.countDown();
411	>	}
412	>	}
413	>
414	>	/**
415	>	* getTaskCount increases, but doesn't overestimate, when tasks
416	>	* submitted
417	>	*/
418	>	public void testGetTaskCount() throws InterruptedException {
419	>	final int TASKS = 3;
420	>	final CountDownLatch done = new CountDownLatch(1);
421	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
422	>	try (PoolCleaner cleaner = cleaner(p, done)) {
423	>	final CountDownLatch threadStarted = new CountDownLatch(1);
424	>	assertEquals(0, p.getTaskCount());
425	>	assertEquals(0, p.getCompletedTaskCount());
426	>	p.execute(new CheckedRunnable() {
427	>	public void realRun() throws InterruptedException {
428	>	threadStarted.countDown();
429	>	done.await();
430	>	}});
431	>	assertTrue(threadStarted.await(LONG_DELAY_MS, MILLISECONDS));
432	>	assertEquals(1, p.getTaskCount());
433	>	assertEquals(0, p.getCompletedTaskCount());
434	>	for (int i = 0; i < TASKS; i++) {
435	>	assertEquals(1 + i, p.getTaskCount());
436	>	p.execute(new CheckedRunnable() {
437	>	public void realRun() throws InterruptedException {
438	>	threadStarted.countDown();
439	>	assertEquals(1 + TASKS, p.getTaskCount());
440	>	done.await();
441	>	}});
442	>	}
443	>	assertEquals(1 + TASKS, p.getTaskCount());
444	>	assertEquals(0, p.getCompletedTaskCount());
445		}
446	<	assertEquals(5, p1.getTaskCount());
447	<	joinPool(p1);
446	>	assertEquals(1 + TASKS, p.getTaskCount());
447	>	assertEquals(1 + TASKS, p.getCompletedTaskCount());
448		}
449
450	<	/**
450	>	/**
451		* getThreadFactory returns factory in constructor if not set
452		*/
453	<	public void testGetThreadFactory() {
454	<	ThreadFactory tf = new SimpleThreadFactory();
455	<	ScheduledExecutor p = new ScheduledExecutor(1, tf);
456	<	assertSame(tf, p.getThreadFactory());
457	<	p.shutdown();
458	<	joinPool(p);
453	>	public void testGetThreadFactory() throws InterruptedException {
454	>	final ThreadFactory threadFactory = new SimpleThreadFactory();
455	>	final ScheduledThreadPoolExecutor p =
456	>	new ScheduledThreadPoolExecutor(1, threadFactory);
457	>	try (PoolCleaner cleaner = cleaner(p)) {
458	>	assertSame(threadFactory, p.getThreadFactory());
459	>	}
460		}
461
462	<	/**
462	>	/**
463		* setThreadFactory sets the thread factory returned by getThreadFactory
464		*/
465	<	public void testSetThreadFactory() {
466	<	ThreadFactory tf = new SimpleThreadFactory();
467	<	ScheduledExecutor p = new ScheduledExecutor(1);
468	<	p.setThreadFactory(tf);
469	<	assertSame(tf, p.getThreadFactory());
470	<	p.shutdown();
471	<	joinPool(p);
465	>	public void testSetThreadFactory() throws InterruptedException {
466	>	ThreadFactory threadFactory = new SimpleThreadFactory();
467	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
468	>	try (PoolCleaner cleaner = cleaner(p)) {
469	>	p.setThreadFactory(threadFactory);
470	>	assertSame(threadFactory, p.getThreadFactory());
471	>	}
472		}
473
474	<	/**
474	>	/**
475		* setThreadFactory(null) throws NPE
476		*/
477	<	public void testSetThreadFactoryNull() {
478	<	ScheduledExecutor p = new ScheduledExecutor(1);
479	<	try {
480	<	p.setThreadFactory(null);
481	<	shouldThrow();
482	<	} catch (NullPointerException success) {
483	<	} finally {
358	<	joinPool(p);
477	>	public void testSetThreadFactoryNull() throws InterruptedException {
478	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
479	>	try (PoolCleaner cleaner = cleaner(p)) {
480	>	try {
481	>	p.setThreadFactory(null);
482	>	shouldThrow();
483	>	} catch (NullPointerException success) {}
484		}
485		}
486	<
486	>
487		/**
488	<	*   is isShutDown is false before shutdown, true after
488	>	* isShutdown is false before shutdown, true after
489		*/
490		public void testIsShutdown() {
491	<
492	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
491	>
492	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
493		try {
494	<	assertFalse(p1.isShutdown());
494	>	assertFalse(p.isShutdown());
495		}
496		finally {
497	<	p1.shutdown();
497	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
498		}
499	<	assertTrue(p1.isShutdown());
499	>	assertTrue(p.isShutdown());
500		}
501
377	–
502		/**
503	<	*   isTerminated is false before termination, true after
503	>	* isTerminated is false before termination, true after
504		*/
505	<	public void testIsTerminated() {
506	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
507	<	try {
508	<	p1.execute(new SmallRunnable());
509	<	} finally {
510	<	p1.shutdown();
505	>	public void testIsTerminated() throws InterruptedException {
506	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
507	>	try (PoolCleaner cleaner = cleaner(p)) {
508	>	final CountDownLatch threadStarted = new CountDownLatch(1);
509	>	final CountDownLatch done = new CountDownLatch(1);
510	>	assertFalse(p.isTerminated());
511	>	p.execute(new CheckedRunnable() {
512	>	public void realRun() throws InterruptedException {
513	>	assertFalse(p.isTerminated());
514	>	threadStarted.countDown();
515	>	done.await();
516	>	}});
517	>	assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
518	>	assertFalse(p.isTerminating());
519	>	done.countDown();
520	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
521	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
522	>	assertTrue(p.isTerminated());
523		}
388	–	try {
389	–	assertTrue(p1.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
390	–	assertTrue(p1.isTerminated());
391	–	} catch(Exception e){
392	–	unexpectedException();
393	–	}
524		}
525
526		/**
527	<	*  isTerminating is not true when running or when terminated
528	<	*/
529	<	public void testIsTerminating() {
530	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
531	<	assertFalse(p1.isTerminating());
532	<	try {
533	<	p1.execute(new SmallRunnable());
534	<	assertFalse(p1.isTerminating());
535	<	} finally {
536	<	p1.shutdown();
527	>	* isTerminating is not true when running or when terminated
528	>	*/
529	>	public void testIsTerminating() throws InterruptedException {
530	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
531	>	final CountDownLatch threadStarted = new CountDownLatch(1);
532	>	final CountDownLatch done = new CountDownLatch(1);
533	>	try (PoolCleaner cleaner = cleaner(p)) {
534	>	assertFalse(p.isTerminating());
535	>	p.execute(new CheckedRunnable() {
536	>	public void realRun() throws InterruptedException {
537	>	assertFalse(p.isTerminating());
538	>	threadStarted.countDown();
539	>	done.await();
540	>	}});
541	>	assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
542	>	assertFalse(p.isTerminating());
543	>	done.countDown();
544	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
545	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
546	>	assertTrue(p.isTerminated());
547	>	assertFalse(p.isTerminating());
548		}
408	–	try {
409	–	assertTrue(p1.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
410	–	assertTrue(p1.isTerminated());
411	–	assertFalse(p1.isTerminating());
412	–	} catch(Exception e){
413	–	unexpectedException();
414	–	}
549		}
550
551		/**
552		* getQueue returns the work queue, which contains queued tasks
553		*/
554	<	public void testGetQueue() {
555	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
556	<	ScheduledCancellable[] tasks = new ScheduledCancellable[5];
557	<	for(int i = 0; i < 5; i++){
558	<	tasks[i] = p1.schedule(new SmallPossiblyInterruptedRunnable(), 1, TimeUnit.MILLISECONDS);
559	<	}
560	<	try {
561	<	Thread.sleep(SHORT_DELAY_MS);
562	<	BlockingQueue<Runnable> q = p1.getQueue();
563	<	assertTrue(q.contains(tasks[4]));
554	>	public void testGetQueue() throws InterruptedException {
555	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
556	>	try (PoolCleaner cleaner = cleaner(p)) {
557	>	final CountDownLatch threadStarted = new CountDownLatch(1);
558	>	final CountDownLatch done = new CountDownLatch(1);
559	>	ScheduledFuture[] tasks = new ScheduledFuture[5];
560	>	for (int i = 0; i < tasks.length; i++) {
561	>	Runnable r = new CheckedRunnable() {
562	>	public void realRun() throws InterruptedException {
563	>	threadStarted.countDown();
564	>	done.await();
565	>	}};
566	>	tasks[i] = p.schedule(r, 1, MILLISECONDS);
567	>	}
568	>	assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
569	>	BlockingQueue<Runnable> q = p.getQueue();
570	>	assertTrue(q.contains(tasks[tasks.length - 1]));
571		assertFalse(q.contains(tasks[0]));
572	<	p1.shutdownNow();
432	<	} catch(Exception e) {
433	<	unexpectedException();
434	<	} finally {
435	<	joinPool(p1);
572	>	done.countDown();
573		}
574		}
575
576		/**
577		* remove(task) removes queued task, and fails to remove active task
578		*/
579	<	public void testRemove() {
580	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
581	<	ScheduledCancellable[] tasks = new ScheduledCancellable[5];
582	<	for(int i = 0; i < 5; i++){
583	<	tasks[i] = p1.schedule(new SmallPossiblyInterruptedRunnable(), 1, TimeUnit.MILLISECONDS);
584	<	}
585	<	try {
586	<	Thread.sleep(SHORT_DELAY_MS);
587	<	BlockingQueue<Runnable> q = p1.getQueue();
588	<	assertFalse(p1.remove((Runnable)tasks[0]));
579	>	public void testRemove() throws InterruptedException {
580	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
581	>	try (PoolCleaner cleaner = cleaner(p)) {
582	>	ScheduledFuture[] tasks = new ScheduledFuture[5];
583	>	final CountDownLatch threadStarted = new CountDownLatch(1);
584	>	final CountDownLatch done = new CountDownLatch(1);
585	>	for (int i = 0; i < tasks.length; i++) {
586	>	Runnable r = new CheckedRunnable() {
587	>	public void realRun() throws InterruptedException {
588	>	threadStarted.countDown();
589	>	done.await();
590	>	}};
591	>	tasks[i] = p.schedule(r, 1, MILLISECONDS);
592	>	}
593	>	assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
594	>	BlockingQueue<Runnable> q = p.getQueue();
595	>	assertFalse(p.remove((Runnable)tasks[0]));
596		assertTrue(q.contains((Runnable)tasks[4]));
597		assertTrue(q.contains((Runnable)tasks[3]));
598	<	assertTrue(p1.remove((Runnable)tasks[4]));
599	<	assertFalse(p1.remove((Runnable)tasks[4]));
598	>	assertTrue(p.remove((Runnable)tasks[4]));
599	>	assertFalse(p.remove((Runnable)tasks[4]));
600		assertFalse(q.contains((Runnable)tasks[4]));
601		assertTrue(q.contains((Runnable)tasks[3]));
602	<	assertTrue(p1.remove((Runnable)tasks[3]));
602	>	assertTrue(p.remove((Runnable)tasks[3]));
603		assertFalse(q.contains((Runnable)tasks[3]));
604	<	p1.shutdownNow();
605	<	} catch(Exception e) {
606	<	unexpectedException();
607	<	} finally {
608	<	joinPool(p1);
604	>	done.countDown();
605	>	}
606	>	}
607	>
608	>	/**
609	>	* purge eventually removes cancelled tasks from the queue
610	>	*/
611	>	public void testPurge() throws InterruptedException {
612	>	final ScheduledFuture[] tasks = new ScheduledFuture[5];
613	>	final Runnable releaser = new Runnable() { public void run() {
614	>	for (ScheduledFuture task : tasks)
615	>	if (task != null) task.cancel(true); }};
616	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
617	>	try (PoolCleaner cleaner = cleaner(p, releaser)) {
618	>	for (int i = 0; i < tasks.length; i++)
619	>	tasks[i] = p.schedule(new SmallPossiblyInterruptedRunnable(),
620	>	LONG_DELAY_MS, MILLISECONDS);
621	>	int max = tasks.length;
622	>	if (tasks[4].cancel(true)) --max;
623	>	if (tasks[3].cancel(true)) --max;
624	>	// There must eventually be an interference-free point at
625	>	// which purge will not fail. (At worst, when queue is empty.)
626	>	long startTime = System.nanoTime();
627	>	do {
628	>	p.purge();
629	>	long count = p.getTaskCount();
630	>	if (count == max)
631	>	return;
632	>	} while (millisElapsedSince(startTime) < LONG_DELAY_MS);
633	>	fail("Purge failed to remove cancelled tasks");
634	>	}
635	>	}
636	>
637	>	/**
638	>	* shutdownNow returns a list containing tasks that were not run,
639	>	* and those tasks are drained from the queue
640	>	*/
641	>	public void testShutdownNow() throws InterruptedException {
642	>	final int poolSize = 2;
643	>	final int count = 5;
644	>	final AtomicInteger ran = new AtomicInteger(0);
645	>	final ScheduledThreadPoolExecutor p =
646	>	new ScheduledThreadPoolExecutor(poolSize);
647	>	final CountDownLatch threadsStarted = new CountDownLatch(poolSize);
648	>	Runnable waiter = new CheckedRunnable() { public void realRun() {
649	>	threadsStarted.countDown();
650	>	try {
651	>	MILLISECONDS.sleep(2 * LONG_DELAY_MS);
652	>	} catch (InterruptedException success) {}
653	>	ran.getAndIncrement();
654	>	}};
655	>	for (int i = 0; i < count; i++)
656	>	p.execute(waiter);
657	>	assertTrue(threadsStarted.await(LONG_DELAY_MS, MILLISECONDS));
658	>	assertEquals(poolSize, p.getActiveCount());
659	>	assertEquals(0, p.getCompletedTaskCount());
660	>	final List<Runnable> queuedTasks;
661	>	try {
662	>	queuedTasks = p.shutdownNow();
663	>	} catch (SecurityException ok) {
664	>	return; // Allowed in case test doesn't have privs
665	>	}
666	>	assertTrue(p.isShutdown());
667	>	assertTrue(p.getQueue().isEmpty());
668	>	assertEquals(count - poolSize, queuedTasks.size());
669	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
670	>	assertTrue(p.isTerminated());
671	>	assertEquals(poolSize, ran.get());
672	>	assertEquals(poolSize, p.getCompletedTaskCount());
673	>	}
674	>
675	>	/**
676	>	* shutdownNow returns a list containing tasks that were not run,
677	>	* and those tasks are drained from the queue
678	>	*/
679	>	public void testShutdownNow_delayedTasks() throws InterruptedException {
680	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
681	>	List<ScheduledFuture> tasks = new ArrayList<>();
682	>	for (int i = 0; i < 3; i++) {
683	>	Runnable r = new NoOpRunnable();
684	>	tasks.add(p.schedule(r, 9, SECONDS));
685	>	tasks.add(p.scheduleAtFixedRate(r, 9, 9, SECONDS));
686	>	tasks.add(p.scheduleWithFixedDelay(r, 9, 9, SECONDS));
687	>	}
688	>	if (testImplementationDetails)
689	>	assertEquals(new HashSet(tasks), new HashSet(p.getQueue()));
690	>	final List<Runnable> queuedTasks;
691	>	try {
692	>	queuedTasks = p.shutdownNow();
693	>	} catch (SecurityException ok) {
694	>	return; // Allowed in case test doesn't have privs
695	>	}
696	>	assertTrue(p.isShutdown());
697	>	assertTrue(p.getQueue().isEmpty());
698	>	if (testImplementationDetails)
699	>	assertEquals(new HashSet(tasks), new HashSet(queuedTasks));
700	>	assertEquals(tasks.size(), queuedTasks.size());
701	>	for (ScheduledFuture task : tasks) {
702	>	assertFalse(task.isDone());
703	>	assertFalse(task.isCancelled());
704		}
705	+	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
706	+	assertTrue(p.isTerminated());
707		}
708
709		/**
710	<	*  purge removes cancelled tasks from the queue
710	>	* By default, periodic tasks are cancelled at shutdown.
711	>	* By default, delayed tasks keep running after shutdown.
712	>	* Check that changing the default values work:
713	>	* - setExecuteExistingDelayedTasksAfterShutdownPolicy
714	>	* - setContinueExistingPeriodicTasksAfterShutdownPolicy
715	>	*/
716	>	public void testShutdown_cancellation() throws Exception {
717	>	Boolean[] allBooleans = { null, Boolean.FALSE, Boolean.TRUE };
718	>	for (Boolean policy : allBooleans)
719	>	{
720	>	final int poolSize = 2;
721	>	final ScheduledThreadPoolExecutor p
722	>	= new ScheduledThreadPoolExecutor(poolSize);
723	>	final boolean effectiveDelayedPolicy = (policy != Boolean.FALSE);
724	>	final boolean effectivePeriodicPolicy = (policy == Boolean.TRUE);
725	>	final boolean effectiveRemovePolicy = (policy == Boolean.TRUE);
726	>	if (policy != null) {
727	>	p.setExecuteExistingDelayedTasksAfterShutdownPolicy(policy);
728	>	p.setContinueExistingPeriodicTasksAfterShutdownPolicy(policy);
729	>	p.setRemoveOnCancelPolicy(policy);
730	>	}
731	>	assertEquals(effectiveDelayedPolicy,
732	>	p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
733	>	assertEquals(effectivePeriodicPolicy,
734	>	p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
735	>	assertEquals(effectiveRemovePolicy,
736	>	p.getRemoveOnCancelPolicy());
737	>	// Strategy: Wedge the pool with poolSize "blocker" threads
738	>	final AtomicInteger ran = new AtomicInteger(0);
739	>	final CountDownLatch poolBlocked = new CountDownLatch(poolSize);
740	>	final CountDownLatch unblock = new CountDownLatch(1);
741	>	final CountDownLatch periodicLatch1 = new CountDownLatch(2);
742	>	final CountDownLatch periodicLatch2 = new CountDownLatch(2);
743	>	Runnable task = new CheckedRunnable() { public void realRun()
744	>	throws InterruptedException {
745	>	poolBlocked.countDown();
746	>	assertTrue(unblock.await(LONG_DELAY_MS, MILLISECONDS));
747	>	ran.getAndIncrement();
748	>	}};
749	>	List<Future<?>> blockers = new ArrayList<>();
750	>	List<Future<?>> periodics = new ArrayList<>();
751	>	List<Future<?>> delayeds = new ArrayList<>();
752	>	for (int i = 0; i < poolSize; i++)
753	>	blockers.add(p.submit(task));
754	>	assertTrue(poolBlocked.await(LONG_DELAY_MS, MILLISECONDS));
755	>
756	>	periodics.add(p.scheduleAtFixedRate(countDowner(periodicLatch1),
757	>	1, 1, MILLISECONDS));
758	>	periodics.add(p.scheduleWithFixedDelay(countDowner(periodicLatch2),
759	>	1, 1, MILLISECONDS));
760	>	delayeds.add(p.schedule(task, 1, MILLISECONDS));
761	>
762	>	assertTrue(p.getQueue().containsAll(periodics));
763	>	assertTrue(p.getQueue().containsAll(delayeds));
764	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
765	>	assertTrue(p.isShutdown());
766	>	assertFalse(p.isTerminated());
767	>	for (Future<?> periodic : periodics) {
768	>	assertTrue(effectivePeriodicPolicy ^ periodic.isCancelled());
769	>	assertTrue(effectivePeriodicPolicy ^ periodic.isDone());
770	>	}
771	>	for (Future<?> delayed : delayeds) {
772	>	assertTrue(effectiveDelayedPolicy ^ delayed.isCancelled());
773	>	assertTrue(effectiveDelayedPolicy ^ delayed.isDone());
774	>	}
775	>	if (testImplementationDetails) {
776	>	assertEquals(effectivePeriodicPolicy,
777	>	p.getQueue().containsAll(periodics));
778	>	assertEquals(effectiveDelayedPolicy,
779	>	p.getQueue().containsAll(delayeds));
780	>	}
781	>	// Release all pool threads
782	>	unblock.countDown();
783	>
784	>	for (Future<?> delayed : delayeds) {
785	>	if (effectiveDelayedPolicy) {
786	>	assertNull(delayed.get());
787	>	}
788	>	}
789	>	if (effectivePeriodicPolicy) {
790	>	assertTrue(periodicLatch1.await(LONG_DELAY_MS, MILLISECONDS));
791	>	assertTrue(periodicLatch2.await(LONG_DELAY_MS, MILLISECONDS));
792	>	for (Future<?> periodic : periodics) {
793	>	assertTrue(periodic.cancel(false));
794	>	assertTrue(periodic.isCancelled());
795	>	assertTrue(periodic.isDone());
796	>	}
797	>	}
798	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
799	>	assertTrue(p.isTerminated());
800	>	assertEquals(2 + (effectiveDelayedPolicy ? 1 : 0), ran.get());
801	>	}}
802	>
803	>	/**
804	>	* completed submit of callable returns result
805		*/
806	<	public void testPurge() {
807	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
808	<	ScheduledCancellable[] tasks = new ScheduledCancellable[5];
809	<	for(int i = 0; i < 5; i++){
810	<	tasks[i] = p1.schedule(new SmallPossiblyInterruptedRunnable(), 1, TimeUnit.MILLISECONDS);
806	>	public void testSubmitCallable() throws Exception {
807	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
808	>	try (PoolCleaner cleaner = cleaner(e)) {
809	>	Future<String> future = e.submit(new StringTask());
810	>	String result = future.get();
811	>	assertSame(TEST_STRING, result);
812		}
477	–	int max = 5;
478	–	if (tasks[4].cancel(true)) --max;
479	–	if (tasks[3].cancel(true)) --max;
480	–	p1.purge();
481	–	long count = p1.getTaskCount();
482	–	assertTrue(count > 0 && count <= max);
483	–	joinPool(p1);
813		}
814
815		/**
816	<	*  shutDownNow returns a list containing tasks that were not run
816	>	* completed submit of runnable returns successfully
817		*/
818	<	public void testShutDownNow() {
819	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
820	<	for(int i = 0; i < 5; i++)
821	<	p1.schedule(new SmallPossiblyInterruptedRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
822	<	List l = p1.shutdownNow();
823	<	assertTrue(p1.isShutdown());
824	<	assertTrue(l.size() > 0 && l.size() <= 5);
496	<	joinPool(p1);
818	>	public void testSubmitRunnable() throws Exception {
819	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
820	>	try (PoolCleaner cleaner = cleaner(e)) {
821	>	Future<?> future = e.submit(new NoOpRunnable());
822	>	future.get();
823	>	assertTrue(future.isDone());
824	>	}
825		}
826
827		/**
828	<	* In default setting, shutdown cancels periodic but not delayed
501	<	* tasks at shutdown
828	>	* completed submit of (runnable, result) returns result
829		*/
830	<	public void testShutDown1() {
831	<	try {
832	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
833	<	assertTrue(p1.getExecuteExistingDelayedTasksAfterShutdownPolicy());
834	<	assertFalse(p1.getContinueExistingPeriodicTasksAfterShutdownPolicy());
830	>	public void testSubmitRunnable2() throws Exception {
831	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
832	>	try (PoolCleaner cleaner = cleaner(e)) {
833	>	Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING);
834	>	String result = future.get();
835	>	assertSame(TEST_STRING, result);
836	>	}
837	>	}
838	>
839	>	/**
840	>	* invokeAny(null) throws NPE
841	>	*/
842	>	public void testInvokeAny1() throws Exception {
843	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
844	>	try (PoolCleaner cleaner = cleaner(e)) {
845	>	try {
846	>	e.invokeAny(null);
847	>	shouldThrow();
848	>	} catch (NullPointerException success) {}
849	>	}
850	>	}
851	>
852	>	/**
853	>	* invokeAny(empty collection) throws IAE
854	>	*/
855	>	public void testInvokeAny2() throws Exception {
856	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
857	>	try (PoolCleaner cleaner = cleaner(e)) {
858	>	try {
859	>	e.invokeAny(new ArrayList<Callable<String>>());
860	>	shouldThrow();
861	>	} catch (IllegalArgumentException success) {}
862	>	}
863	>	}
864	>
865	>	/**
866	>	* invokeAny(c) throws NPE if c has null elements
867	>	*/
868	>	public void testInvokeAny3() throws Exception {
869	>	CountDownLatch latch = new CountDownLatch(1);
870	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
871	>	try (PoolCleaner cleaner = cleaner(e)) {
872	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
873	>	l.add(latchAwaitingStringTask(latch));
874	>	l.add(null);
875	>	try {
876	>	e.invokeAny(l);
877	>	shouldThrow();
878	>	} catch (NullPointerException success) {}
879	>	latch.countDown();
880	>	}
881	>	}
882
883	<	ScheduledCancellable[] tasks = new ScheduledCancellable[5];
884	<	for(int i = 0; i < 5; i++)
885	<	tasks[i] = p1.schedule(new NoOpRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
886	<	p1.shutdown();
887	<	BlockingQueue q = p1.getQueue();
888	<	for (Iterator it = q.iterator(); it.hasNext();) {
889	<	ScheduledCancellable t = (ScheduledCancellable)it.next();
890	<	assertFalse(t.isCancelled());
883	>	/**
884	>	* invokeAny(c) throws ExecutionException if no task completes
885	>	*/
886	>	public void testInvokeAny4() throws Exception {
887	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
888	>	try (PoolCleaner cleaner = cleaner(e)) {
889	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
890	>	l.add(new NPETask());
891	>	try {
892	>	e.invokeAny(l);
893	>	shouldThrow();
894	>	} catch (ExecutionException success) {
895	>	assertTrue(success.getCause() instanceof NullPointerException);
896		}
897	<	assertTrue(p1.isShutdown());
898	<	Thread.sleep(SMALL_DELAY_MS);
899	<	for (int i = 0; i < 5; ++i) {
900	<	assertTrue(tasks[i].isDone());
901	<	assertFalse(tasks[i].isCancelled());
897	>	}
898	>	}
899	>
900	>	/**
901	>	* invokeAny(c) returns result of some task
902	>	*/
903	>	public void testInvokeAny5() throws Exception {
904	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
905	>	try (PoolCleaner cleaner = cleaner(e)) {
906	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
907	>	l.add(new StringTask());
908	>	l.add(new StringTask());
909	>	String result = e.invokeAny(l);
910	>	assertSame(TEST_STRING, result);
911	>	}
912	>	}
913	>
914	>	/**
915	>	* invokeAll(null) throws NPE
916	>	*/
917	>	public void testInvokeAll1() throws Exception {
918	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
919	>	try (PoolCleaner cleaner = cleaner(e)) {
920	>	try {
921	>	e.invokeAll(null);
922	>	shouldThrow();
923	>	} catch (NullPointerException success) {}
924	>	}
925	>	}
926	>
927	>	/**
928	>	* invokeAll(empty collection) returns empty collection
929	>	*/
930	>	public void testInvokeAll2() throws Exception {
931	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
932	>	try (PoolCleaner cleaner = cleaner(e)) {
933	>	List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>());
934	>	assertTrue(r.isEmpty());
935	>	}
936	>	}
937	>
938	>	/**
939	>	* invokeAll(c) throws NPE if c has null elements
940	>	*/
941	>	public void testInvokeAll3() throws Exception {
942	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
943	>	try (PoolCleaner cleaner = cleaner(e)) {
944	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
945	>	l.add(new StringTask());
946	>	l.add(null);
947	>	try {
948	>	e.invokeAll(l);
949	>	shouldThrow();
950	>	} catch (NullPointerException success) {}
951	>	}
952	>	}
953	>
954	>	/**
955	>	* get of invokeAll(c) throws exception on failed task
956	>	*/
957	>	public void testInvokeAll4() throws Exception {
958	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
959	>	try (PoolCleaner cleaner = cleaner(e)) {
960	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
961	>	l.add(new NPETask());
962	>	List<Future<String>> futures = e.invokeAll(l);
963	>	assertEquals(1, futures.size());
964	>	try {
965	>	futures.get(0).get();
966	>	shouldThrow();
967	>	} catch (ExecutionException success) {
968	>	assertTrue(success.getCause() instanceof NullPointerException);
969		}
524	–
970		}
971	<	catch(Exception ex) {
972	<	unexpectedException();
971	>	}
972	>
973	>	/**
974	>	* invokeAll(c) returns results of all completed tasks
975	>	*/
976	>	public void testInvokeAll5() throws Exception {
977	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
978	>	try (PoolCleaner cleaner = cleaner(e)) {
979	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
980	>	l.add(new StringTask());
981	>	l.add(new StringTask());
982	>	List<Future<String>> futures = e.invokeAll(l);
983	>	assertEquals(2, futures.size());
984	>	for (Future<String> future : futures)
985	>	assertSame(TEST_STRING, future.get());
986		}
987		}
988
989	+	/**
990	+	* timed invokeAny(null) throws NPE
991	+	*/
992	+	public void testTimedInvokeAny1() throws Exception {
993	+	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
994	+	try (PoolCleaner cleaner = cleaner(e)) {
995	+	try {
996	+	e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS);
997	+	shouldThrow();
998	+	} catch (NullPointerException success) {}
999	+	}
1000	+	}
1001
1002		/**
1003	<	* If setExecuteExistingDelayedTasksAfterShutdownPolicy is false,
534	<	* delayed tasks are cancelled at shutdown
1003	>	* timed invokeAny(,,null) throws NPE
1004		*/
1005	<	public void testShutDown2() {
1006	<	try {
1007	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
1008	<	p1.setExecuteExistingDelayedTasksAfterShutdownPolicy(false);
1009	<	ScheduledCancellable[] tasks = new ScheduledCancellable[5];
1010	<	for(int i = 0; i < 5; i++)
1011	<	tasks[i] = p1.schedule(new NoOpRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
1012	<	p1.shutdown();
1013	<	assertTrue(p1.isShutdown());
1014	<	BlockingQueue q = p1.getQueue();
1015	<	assertTrue(q.isEmpty());
1016	<	Thread.sleep(SMALL_DELAY_MS);
1017	<	assertTrue(p1.isTerminated());
1005	>	public void testTimedInvokeAnyNullTimeUnit() throws Exception {
1006	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1007	>	try (PoolCleaner cleaner = cleaner(e)) {
1008	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1009	>	l.add(new StringTask());
1010	>	try {
1011	>	e.invokeAny(l, MEDIUM_DELAY_MS, null);
1012	>	shouldThrow();
1013	>	} catch (NullPointerException success) {}
1014	>	}
1015	>	}
1016	>
1017	>	/**
1018	>	* timed invokeAny(empty collection) throws IAE
1019	>	*/
1020	>	public void testTimedInvokeAny2() throws Exception {
1021	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1022	>	try (PoolCleaner cleaner = cleaner(e)) {
1023	>	try {
1024	>	e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
1025	>	shouldThrow();
1026	>	} catch (IllegalArgumentException success) {}
1027		}
1028	<	catch(Exception ex) {
1029	<	unexpectedException();
1028	>	}
1029	>
1030	>	/**
1031	>	* timed invokeAny(c) throws NPE if c has null elements
1032	>	*/
1033	>	public void testTimedInvokeAny3() throws Exception {
1034	>	CountDownLatch latch = new CountDownLatch(1);
1035	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1036	>	try (PoolCleaner cleaner = cleaner(e)) {
1037	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1038	>	l.add(latchAwaitingStringTask(latch));
1039	>	l.add(null);
1040	>	try {
1041	>	e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1042	>	shouldThrow();
1043	>	} catch (NullPointerException success) {}
1044	>	latch.countDown();
1045		}
1046		}
1047
1048	+	/**
1049	+	* timed invokeAny(c) throws ExecutionException if no task completes
1050	+	*/
1051	+	public void testTimedInvokeAny4() throws Exception {
1052	+	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1053	+	try (PoolCleaner cleaner = cleaner(e)) {
1054	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
1055	+	l.add(new NPETask());
1056	+	try {
1057	+	e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1058	+	shouldThrow();
1059	+	} catch (ExecutionException success) {
1060	+	assertTrue(success.getCause() instanceof NullPointerException);
1061	+	}
1062	+	}
1063	+	}
1064
1065		/**
1066	<	* If setContinueExistingPeriodicTasksAfterShutdownPolicy is set false,
558	<	* periodic tasks are not cancelled at shutdown
1066	>	* timed invokeAny(c) returns result of some task
1067		*/
1068	<	public void testShutDown3() {
1069	<	try {
1070	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
1071	<	p1.setContinueExistingPeriodicTasksAfterShutdownPolicy(false);
1072	<	ScheduledCancellable task =
1073	<	p1.scheduleAtFixedRate(new NoOpRunnable(), 5, 5, TimeUnit.MILLISECONDS);
1074	<	p1.shutdown();
1075	<	assertTrue(p1.isShutdown());
568	<	BlockingQueue q = p1.getQueue();
569	<	assertTrue(q.isEmpty());
570	<	Thread.sleep(SHORT_DELAY_MS);
571	<	assertTrue(p1.isTerminated());
1068	>	public void testTimedInvokeAny5() throws Exception {
1069	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1070	>	try (PoolCleaner cleaner = cleaner(e)) {
1071	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1072	>	l.add(new StringTask());
1073	>	l.add(new StringTask());
1074	>	String result = e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1075	>	assertSame(TEST_STRING, result);
1076		}
1077	<	catch(Exception ex) {
1078	<	unexpectedException();
1077	>	}
1078	>
1079	>	/**
1080	>	* timed invokeAll(null) throws NPE
1081	>	*/
1082	>	public void testTimedInvokeAll1() throws Exception {
1083	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1084	>	try (PoolCleaner cleaner = cleaner(e)) {
1085	>	try {
1086	>	e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS);
1087	>	shouldThrow();
1088	>	} catch (NullPointerException success) {}
1089		}
1090		}
1091
1092		/**
1093	<	* if setContinueExistingPeriodicTasksAfterShutdownPolicy is true,
580	<	* periodic tasks are cancelled at shutdown
1093	>	* timed invokeAll(,,null) throws NPE
1094		*/
1095	<	public void testShutDown4() {
1096	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
1097	<	try {
1098	<	p1.setContinueExistingPeriodicTasksAfterShutdownPolicy(true);
1099	<	ScheduledCancellable task =
1100	<	p1.scheduleAtFixedRate(new NoOpRunnable(), 5, 5, TimeUnit.MILLISECONDS);
1101	<	assertFalse(task.isCancelled());
1102	<	p1.shutdown();
1103	<	assertFalse(task.isCancelled());
1104	<	assertFalse(p1.isTerminated());
1105	<	assertTrue(p1.isShutdown());
1106	<	Thread.sleep(SHORT_DELAY_MS);
1107	<	assertFalse(task.isCancelled());
1108	<	task.cancel(true);
1109	<	assertTrue(task.isCancelled());
1110	<	Thread.sleep(SHORT_DELAY_MS);
1111	<	assertTrue(p1.isTerminated());
1095	>	public void testTimedInvokeAllNullTimeUnit() throws Exception {
1096	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1097	>	try (PoolCleaner cleaner = cleaner(e)) {
1098	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1099	>	l.add(new StringTask());
1100	>	try {
1101	>	e.invokeAll(l, MEDIUM_DELAY_MS, null);
1102	>	shouldThrow();
1103	>	} catch (NullPointerException success) {}
1104	>	}
1105	>	}
1106	>
1107	>	/**
1108	>	* timed invokeAll(empty collection) returns empty collection
1109	>	*/
1110	>	public void testTimedInvokeAll2() throws Exception {
1111	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1112	>	try (PoolCleaner cleaner = cleaner(e)) {
1113	>	List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(),
1114	>	MEDIUM_DELAY_MS, MILLISECONDS);
1115	>	assertTrue(r.isEmpty());
1116		}
1117	<	catch(Exception ex) {
1118	<	unexpectedException();
1117	>	}
1118	>
1119	>	/**
1120	>	* timed invokeAll(c) throws NPE if c has null elements
1121	>	*/
1122	>	public void testTimedInvokeAll3() throws Exception {
1123	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1124	>	try (PoolCleaner cleaner = cleaner(e)) {
1125	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1126	>	l.add(new StringTask());
1127	>	l.add(null);
1128	>	try {
1129	>	e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1130	>	shouldThrow();
1131	>	} catch (NullPointerException success) {}
1132		}
1133	<	finally {
1134	<	p1.shutdownNow();
1133	>	}
1134	>
1135	>	/**
1136	>	* get of element of invokeAll(c) throws exception on failed task
1137	>	*/
1138	>	public void testTimedInvokeAll4() throws Exception {
1139	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1140	>	try (PoolCleaner cleaner = cleaner(e)) {
1141	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1142	>	l.add(new NPETask());
1143	>	List<Future<String>> futures =
1144	>	e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1145	>	assertEquals(1, futures.size());
1146	>	try {
1147	>	futures.get(0).get();
1148	>	shouldThrow();
1149	>	} catch (ExecutionException success) {
1150	>	assertTrue(success.getCause() instanceof NullPointerException);
1151	>	}
1152	>	}
1153	>	}
1154	>
1155	>	/**
1156	>	* timed invokeAll(c) returns results of all completed tasks
1157	>	*/
1158	>	public void testTimedInvokeAll5() throws Exception {
1159	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1160	>	try (PoolCleaner cleaner = cleaner(e)) {
1161	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1162	>	l.add(new StringTask());
1163	>	l.add(new StringTask());
1164	>	List<Future<String>> futures =
1165	>	e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS);
1166	>	assertEquals(2, futures.size());
1167	>	for (Future<String> future : futures)
1168	>	assertSame(TEST_STRING, future.get());
1169	>	}
1170	>	}
1171	>
1172	>	/**
1173	>	* timed invokeAll(c) cancels tasks not completed by timeout
1174	>	*/
1175	>	public void testTimedInvokeAll6() throws Exception {
1176	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1177	>	try (PoolCleaner cleaner = cleaner(e)) {
1178	>	for (long timeout = timeoutMillis();;) {
1179	>	List<Callable<String>> tasks = new ArrayList<>();
1180	>	tasks.add(new StringTask("0"));
1181	>	tasks.add(Executors.callable(new LongPossiblyInterruptedRunnable(), TEST_STRING));
1182	>	tasks.add(new StringTask("2"));
1183	>	long startTime = System.nanoTime();
1184	>	List<Future<String>> futures =
1185	>	e.invokeAll(tasks, timeout, MILLISECONDS);
1186	>	assertEquals(tasks.size(), futures.size());
1187	>	assertTrue(millisElapsedSince(startTime) >= timeout);
1188	>	for (Future future : futures)
1189	>	assertTrue(future.isDone());
1190	>	assertTrue(futures.get(1).isCancelled());
1191	>	try {
1192	>	assertEquals("0", futures.get(0).get());
1193	>	assertEquals("2", futures.get(2).get());
1194	>	break;
1195	>	} catch (CancellationException retryWithLongerTimeout) {
1196	>	timeout *= 2;
1197	>	if (timeout >= LONG_DELAY_MS / 2)
1198	>	fail("expected exactly one task to be cancelled");
1199	>	}
1200	>	}
1201		}
1202		}
1203

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