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

Comparing jsr166/src/test/tck/ScheduledExecutorTest.java (file contents):
Revision 1.6 by dl, Thu Sep 25 11:02:41 2003 UTC vs.
Revision 1.72 by jsr166, Tue Oct 6 05:30:44 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);
18	<	}
19	<
20	<	static class MyRunnable implements Runnable {
21	<	volatile boolean done = false;
22	<	public void run() {
23	<	try {
24	<	Thread.sleep(SMALL_DELAY_MS);
25	<	done = true;
26	<	} catch(Exception e){
27	<	}
28	<	}
29	<	}
30	<
31	<	static class MyCallable implements Callable {
32	<	volatile boolean done = false;
33	<	public Object call() {
34	<	try {
35	<	Thread.sleep(SMALL_DELAY_MS);
36	<	done = true;
37	<	} catch(Exception e){
38	<	}
39	<	return Boolean.TRUE;
40	<	}
38	>	return new TestSuite(ScheduledExecutorTest.class);
39		}
40
41		/**
42		* execute successfully executes a runnable
43		*/
44	<	public void testExecute() {
45	<	try {
46	<	MyRunnable runnable =new MyRunnable();
47	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
48	<	p1.execute(runnable);
49	<	assertFalse(runnable.done);
50	<	Thread.sleep(SHORT_DELAY_MS);
51	<	p1.shutdown();
54	<	try {
55	<	Thread.sleep(MEDIUM_DELAY_MS);
56	<	} catch(InterruptedException e){
57	<	unexpectedException();
58	<	}
59	<	assertTrue(runnable.done);
60	<	p1.shutdown();
61	<	joinPool(p1);
62	<	}
63	<	catch(Exception e){
64	<	unexpectedException();
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(LONG_DELAY_MS, MILLISECONDS));
52		}
66	–
53		}
54
69	–
55		/**
56		* delayed schedule of callable successfully executes after delay
57		*/
58	<	public void testSchedule1() {
59	<	try {
60	<	MyCallable callable = new MyCallable();
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	<	MyRunnable runnable = new MyRunnable();
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	<	MyRunnable runnable = new MyRunnable();
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	<	MyRunnable runnable = new MyRunnable();
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	<
139	>
140	>	static class RunnableCounter implements Runnable {
141	>	AtomicInteger count = new AtomicInteger(0);
142	>	public void run() { count.getAndIncrement(); }
143	>	}
144	>
145		/**
146	<	*  execute (null) throws NPE
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	>	await(done);
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	>
171	>	/**
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	>	await(done);
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	>	}
195	>	}
196	>
197	>	/**
198	>	* execute(null) throws NPE
199	>	*/
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		}
160	–
161	–	joinPool(se);
208		}
209
210		/**
211	<	* schedule (null) throws NPE
211	>	* schedule(null) throws NPE
212		*/
213	<	public void testScheduleNull() {
214	<	ScheduledExecutor se = new ScheduledExecutor(1);
215	<	try {
216	<	MyCallable callable = null;
217	<	Future f = se.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
218	<	shouldThrow();
219	<	} catch(NullPointerException success){}
220	<	catch(Exception e){
175	<	unexpectedException();
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		}
177	–	joinPool(se);
222		}
223	<
223	>
224		/**
225		* execute throws RejectedExecutionException if shutdown
226		*/
227	<	public void testSchedule1_RejectedExecutionException() {
228	<	ScheduledExecutor se = new ScheduledExecutor(1);
229	<	try {
230	<	se.shutdown();
231	<	se.schedule(new NoOpRunnable(),
232	<	MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
233	<	shouldThrow();
234	<	} catch(RejectedExecutionException success){
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		}
192	–	joinPool(se);
193	–
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		}
208	–	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
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);
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,
323	<	*   when tasks complete
324	<	*/
325	<	public void testGetCompletedTaskCount() {
326	<	ScheduledExecutor p2 = new ScheduledExecutor(2);
327	<	assertEquals(0, p2.getCompletedTaskCount());
328	<	p2.execute(new SmallRunnable());
329	<	try {
330	<	Thread.sleep(MEDIUM_DELAY_MS);
331	<	} catch(Exception e){
332	<	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	>	await(done);
319	>	}});
320	>	await(threadStarted);
321	>	assertEquals(1, p.getActiveCount());
322	>	done.countDown();
323	>	}
324	>	}
325	>
326	>	/**
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		}
286	–	assertEquals(1, p2.getCompletedTaskCount());
287	–	joinPool(p2);
355		}
356	<
356	>
357		/**
358	<	*  getCorePoolSize returns size given in constructor if not otherwise set
358	>	* getCorePoolSize returns size given in constructor if not otherwise set
359		*/
360	<	public void testGetCorePoolSize() {
361	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
362	<	assertEquals(1, p1.getCorePoolSize());
363	<	joinPool(p1);
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, done)) {
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	>	await(done);
383	>	assertEquals(THREADS, p.getLargestPoolSize());
384	>	}});
385	>	await(threadsStarted);
386	>	assertEquals(THREADS, p.getLargestPoolSize());
387	>	}
388	>	assertEquals(THREADS, p.getLargestPoolSize());
389	>	}
390	>
391	>	/**
392	>	* getPoolSize increases, but doesn't overestimate, when threads
393	>	* become active
394	>	*/
395	>	public void testGetPoolSize() throws InterruptedException {
396	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
397	>	final CountDownLatch threadStarted = new CountDownLatch(1);
398	>	final CountDownLatch done = new CountDownLatch(1);
399	>	try (PoolCleaner cleaner = cleaner(p, done)) {
400	>	assertEquals(0, p.getPoolSize());
401	>	p.execute(new CheckedRunnable() {
402	>	public void realRun() throws InterruptedException {
403	>	threadStarted.countDown();
404	>	assertEquals(1, p.getPoolSize());
405	>	await(done);
406	>	}});
407	>	await(threadStarted);
408	>	assertEquals(1, p.getPoolSize());
409	>	}
410	>	}
411	>
412	>	/**
413	>	* getTaskCount increases, but doesn't overestimate, when tasks
414	>	* submitted
415	>	*/
416	>	public void testGetTaskCount() throws InterruptedException {
417	>	final int TASKS = 3;
418	>	final CountDownLatch done = new CountDownLatch(1);
419	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
420	>	try (PoolCleaner cleaner = cleaner(p, done)) {
421	>	final CountDownLatch threadStarted = new CountDownLatch(1);
422	>	assertEquals(0, p.getTaskCount());
423	>	assertEquals(0, p.getCompletedTaskCount());
424	>	p.execute(new CheckedRunnable() {
425	>	public void realRun() throws InterruptedException {
426	>	threadStarted.countDown();
427	>	await(done);
428	>	}});
429	>	await(threadStarted);
430	>	assertEquals(1, p.getTaskCount());
431	>	assertEquals(0, p.getCompletedTaskCount());
432	>	for (int i = 0; i < TASKS; i++) {
433	>	assertEquals(1 + i, p.getTaskCount());
434	>	p.execute(new CheckedRunnable() {
435	>	public void realRun() throws InterruptedException {
436	>	threadStarted.countDown();
437	>	assertEquals(1 + TASKS, p.getTaskCount());
438	>	await(done);
439	>	}});
440	>	}
441	>	assertEquals(1 + TASKS, p.getTaskCount());
442	>	assertEquals(0, p.getCompletedTaskCount());
443	>	}
444	>	assertEquals(1 + TASKS, p.getTaskCount());
445	>	assertEquals(1 + TASKS, p.getCompletedTaskCount());
446		}
447	<
447	>
448		/**
449	<	*    getLargestPoolSize increases, but doesn't overestimate, when
301	<	*   multiple threads active
449	>	* getThreadFactory returns factory in constructor if not set
450		*/
451	<	public void testGetLargestPoolSize() {
452	<	ScheduledExecutor p2 = new ScheduledExecutor(2);
453	<	assertEquals(0, p2.getLargestPoolSize());
454	<	p2.execute(new SmallRunnable());
455	<	p2.execute(new SmallRunnable());
456	<	try {
457	<	Thread.sleep(SHORT_DELAY_MS);
458	<	} catch(Exception e){
459	<	unexpectedException();
460	<	}
461	<	assertEquals(2, p2.getLargestPoolSize());
462	<	joinPool(p2);
463	<	}
464	<
465	<	/**
466	<	*   getPoolSize increases, but doesn't overestimate, when threads
467	<	*   become active
468	<	*/
321	<	public void testGetPoolSize() {
322	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
323	<	assertEquals(0, p1.getPoolSize());
324	<	p1.execute(new SmallRunnable());
325	<	assertEquals(1, p1.getPoolSize());
326	<	joinPool(p1);
327	<	}
328	<
329	<	/**
330	<	*    getTaskCount increases, but doesn't overestimate, when tasks
331	<	*    submitted
332	<	*/
333	<	public void testGetTaskCount() {
334	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
335	<	assertEquals(0, p1.getTaskCount());
336	<	for(int i = 0; i < 5; i++)
337	<	p1.execute(new SmallRunnable());
338	<	try {
339	<	Thread.sleep(SHORT_DELAY_MS);
340	<	} catch(Exception e){
341	<	unexpectedException();
451	>	public void testGetThreadFactory() throws InterruptedException {
452	>	final ThreadFactory threadFactory = new SimpleThreadFactory();
453	>	final ScheduledThreadPoolExecutor p =
454	>	new ScheduledThreadPoolExecutor(1, threadFactory);
455	>	try (PoolCleaner cleaner = cleaner(p)) {
456	>	assertSame(threadFactory, p.getThreadFactory());
457	>	}
458	>	}
459	>
460	>	/**
461	>	* setThreadFactory sets the thread factory returned by getThreadFactory
462	>	*/
463	>	public void testSetThreadFactory() throws InterruptedException {
464	>	ThreadFactory threadFactory = new SimpleThreadFactory();
465	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
466	>	try (PoolCleaner cleaner = cleaner(p)) {
467	>	p.setThreadFactory(threadFactory);
468	>	assertSame(threadFactory, p.getThreadFactory());
469		}
343	–	assertEquals(5, p1.getTaskCount());
344	–	joinPool(p1);
470		}
471	<
471	>
472		/**
473	<	*   is isShutDown is false before shutdown, true after
473	>	* setThreadFactory(null) throws NPE
474	>	*/
475	>	public void testSetThreadFactoryNull() throws InterruptedException {
476	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
477	>	try (PoolCleaner cleaner = cleaner(p)) {
478	>	try {
479	>	p.setThreadFactory(null);
480	>	shouldThrow();
481	>	} catch (NullPointerException success) {}
482	>	}
483	>	}
484	>
485	>	/**
486	>	* isShutdown is false before shutdown, true after
487		*/
488		public void testIsShutdown() {
489	<
490	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
489	>
490	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
491		try {
492	<	assertFalse(p1.isShutdown());
492	>	assertFalse(p.isShutdown());
493		}
494		finally {
495	<	p1.shutdown();
495	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
496		}
497	<	assertTrue(p1.isShutdown());
497	>	assertTrue(p.isShutdown());
498		}
499
362	–
500		/**
501	<	*   isTerminated is false before termination, true after
501	>	* isTerminated is false before termination, true after
502		*/
503	<	public void testIsTerminated() {
504	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
505	<	try {
506	<	p1.execute(new SmallRunnable());
507	<	} finally {
508	<	p1.shutdown();
503	>	public void testIsTerminated() throws InterruptedException {
504	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
505	>	try (PoolCleaner cleaner = cleaner(p)) {
506	>	final CountDownLatch threadStarted = new CountDownLatch(1);
507	>	final CountDownLatch done = new CountDownLatch(1);
508	>	assertFalse(p.isTerminated());
509	>	p.execute(new CheckedRunnable() {
510	>	public void realRun() throws InterruptedException {
511	>	assertFalse(p.isTerminated());
512	>	threadStarted.countDown();
513	>	await(done);
514	>	}});
515	>	await(threadStarted);
516	>	assertFalse(p.isTerminating());
517	>	done.countDown();
518	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
519	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
520	>	assertTrue(p.isTerminated());
521	>	}
522	>	}
523	>
524	>	/**
525	>	* isTerminating is not true when running or when terminated
526	>	*/
527	>	public void testIsTerminating() throws InterruptedException {
528	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
529	>	final CountDownLatch threadStarted = new CountDownLatch(1);
530	>	final CountDownLatch done = new CountDownLatch(1);
531	>	try (PoolCleaner cleaner = cleaner(p)) {
532	>	assertFalse(p.isTerminating());
533	>	p.execute(new CheckedRunnable() {
534	>	public void realRun() throws InterruptedException {
535	>	assertFalse(p.isTerminating());
536	>	threadStarted.countDown();
537	>	await(done);
538	>	}});
539	>	await(threadStarted);
540	>	assertFalse(p.isTerminating());
541	>	done.countDown();
542	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
543	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
544	>	assertTrue(p.isTerminated());
545	>	assertFalse(p.isTerminating());
546	>	}
547	>	}
548	>
549	>	/**
550	>	* getQueue returns the work queue, which contains queued tasks
551	>	*/
552	>	public void testGetQueue() throws InterruptedException {
553	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
554	>	try (PoolCleaner cleaner = cleaner(p)) {
555	>	final CountDownLatch threadStarted = new CountDownLatch(1);
556	>	final CountDownLatch done = new CountDownLatch(1);
557	>	ScheduledFuture[] tasks = new ScheduledFuture[5];
558	>	for (int i = 0; i < tasks.length; i++) {
559	>	Runnable r = new CheckedRunnable() {
560	>	public void realRun() throws InterruptedException {
561	>	threadStarted.countDown();
562	>	await(done);
563	>	}};
564	>	tasks[i] = p.schedule(r, 1, MILLISECONDS);
565	>	}
566	>	await(threadStarted);
567	>	BlockingQueue<Runnable> q = p.getQueue();
568	>	assertTrue(q.contains(tasks[tasks.length - 1]));
569	>	assertFalse(q.contains(tasks[0]));
570	>	done.countDown();
571	>	}
572	>	}
573	>
574	>	/**
575	>	* remove(task) removes queued task, and fails to remove active task
576	>	*/
577	>	public void testRemove() throws InterruptedException {
578	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
579	>	try (PoolCleaner cleaner = cleaner(p)) {
580	>	ScheduledFuture[] tasks = new ScheduledFuture[5];
581	>	final CountDownLatch threadStarted = new CountDownLatch(1);
582	>	final CountDownLatch done = new CountDownLatch(1);
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	>	assertFalse(p.remove((Runnable)tasks[0]));
594	>	assertTrue(q.contains((Runnable)tasks[4]));
595	>	assertTrue(q.contains((Runnable)tasks[3]));
596	>	assertTrue(p.remove((Runnable)tasks[4]));
597	>	assertFalse(p.remove((Runnable)tasks[4]));
598	>	assertFalse(q.contains((Runnable)tasks[4]));
599	>	assertTrue(q.contains((Runnable)tasks[3]));
600	>	assertTrue(p.remove((Runnable)tasks[3]));
601	>	assertFalse(q.contains((Runnable)tasks[3]));
602	>	done.countDown();
603	>	}
604	>	}
605	>
606	>	/**
607	>	* purge eventually removes cancelled tasks from the queue
608	>	*/
609	>	public void testPurge() throws InterruptedException {
610	>	final ScheduledFuture[] tasks = new ScheduledFuture[5];
611	>	final Runnable releaser = new Runnable() { public void run() {
612	>	for (ScheduledFuture task : tasks)
613	>	if (task != null) task.cancel(true); }};
614	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
615	>	try (PoolCleaner cleaner = cleaner(p, releaser)) {
616	>	for (int i = 0; i < tasks.length; i++)
617	>	tasks[i] = p.schedule(new SmallPossiblyInterruptedRunnable(),
618	>	LONG_DELAY_MS, MILLISECONDS);
619	>	int max = tasks.length;
620	>	if (tasks[4].cancel(true)) --max;
621	>	if (tasks[3].cancel(true)) --max;
622	>	// There must eventually be an interference-free point at
623	>	// which purge will not fail. (At worst, when queue is empty.)
624	>	long startTime = System.nanoTime();
625	>	do {
626	>	p.purge();
627	>	long count = p.getTaskCount();
628	>	if (count == max)
629	>	return;
630	>	} while (millisElapsedSince(startTime) < LONG_DELAY_MS);
631	>	fail("Purge failed to remove cancelled tasks");
632		}
633	+	}
634	+
635	+	/**
636	+	* shutdownNow returns a list containing tasks that were not run,
637	+	* and those tasks are drained from the queue
638	+	*/
639	+	public void testShutdownNow() throws InterruptedException {
640	+	final int poolSize = 2;
641	+	final int count = 5;
642	+	final AtomicInteger ran = new AtomicInteger(0);
643	+	final ScheduledThreadPoolExecutor p =
644	+	new ScheduledThreadPoolExecutor(poolSize);
645	+	final CountDownLatch threadsStarted = new CountDownLatch(poolSize);
646	+	Runnable waiter = new CheckedRunnable() { public void realRun() {
647	+	threadsStarted.countDown();
648	+	try {
649	+	MILLISECONDS.sleep(2 * LONG_DELAY_MS);
650	+	} catch (InterruptedException success) {}
651	+	ran.getAndIncrement();
652	+	}};
653	+	for (int i = 0; i < count; i++)
654	+	p.execute(waiter);
655	+	await(threadsStarted);
656	+	assertEquals(poolSize, p.getActiveCount());
657	+	assertEquals(0, p.getCompletedTaskCount());
658	+	final List<Runnable> queuedTasks;
659		try {
660	<	assertTrue(p1.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
661	<	assertTrue(p1.isTerminated());
662	<	} catch(Exception e){
663	<	unexpectedException();
664	<	}
660	>	queuedTasks = p.shutdownNow();
661	>	} catch (SecurityException ok) {
662	>	return; // Allowed in case test doesn't have privs
663	>	}
664	>	assertTrue(p.isShutdown());
665	>	assertTrue(p.getQueue().isEmpty());
666	>	assertEquals(count - poolSize, queuedTasks.size());
667	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
668	>	assertTrue(p.isTerminated());
669	>	assertEquals(poolSize, ran.get());
670	>	assertEquals(poolSize, p.getCompletedTaskCount());
671		}
672
673		/**
674	<	*  isTerminating is not true when running or when terminated
675	<	*/
676	<	public void testIsTerminating() {
677	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
678	<	assertFalse(p1.isTerminating());
674	>	* shutdownNow returns a list containing tasks that were not run,
675	>	* and those tasks are drained from the queue
676	>	*/
677	>	public void testShutdownNow_delayedTasks() throws InterruptedException {
678	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
679	>	List<ScheduledFuture> tasks = new ArrayList<>();
680	>	for (int i = 0; i < 3; i++) {
681	>	Runnable r = new NoOpRunnable();
682	>	tasks.add(p.schedule(r, 9, SECONDS));
683	>	tasks.add(p.scheduleAtFixedRate(r, 9, 9, SECONDS));
684	>	tasks.add(p.scheduleWithFixedDelay(r, 9, 9, SECONDS));
685	>	}
686	>	if (testImplementationDetails)
687	>	assertEquals(new HashSet(tasks), new HashSet(p.getQueue()));
688	>	final List<Runnable> queuedTasks;
689		try {
690	<	p1.execute(new SmallRunnable());
691	<	assertFalse(p1.isTerminating());
692	<	} finally {
693	<	p1.shutdown();
690	>	queuedTasks = p.shutdownNow();
691	>	} catch (SecurityException ok) {
692	>	return; // Allowed in case test doesn't have privs
693	>	}
694	>	assertTrue(p.isShutdown());
695	>	assertTrue(p.getQueue().isEmpty());
696	>	if (testImplementationDetails)
697	>	assertEquals(new HashSet(tasks), new HashSet(queuedTasks));
698	>	assertEquals(tasks.size(), queuedTasks.size());
699	>	for (ScheduledFuture task : tasks) {
700	>	assertFalse(task.isDone());
701	>	assertFalse(task.isCancelled());
702		}
703	<	try {
704	<	assertTrue(p1.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
395	<	assertTrue(p1.isTerminated());
396	<	assertFalse(p1.isTerminating());
397	<	} catch(Exception e){
398	<	unexpectedException();
399	<	}
703	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
704	>	assertTrue(p.isTerminated());
705		}
706
707		/**
708	<	*   purge removes cancelled tasks from the queue
708	>	* By default, periodic tasks are cancelled at shutdown.
709	>	* By default, delayed tasks keep running after shutdown.
710	>	* Check that changing the default values work:
711	>	* - setExecuteExistingDelayedTasksAfterShutdownPolicy
712	>	* - setContinueExistingPeriodicTasksAfterShutdownPolicy
713	>	*/
714	>	public void testShutdown_cancellation() throws Exception {
715	>	Boolean[] allBooleans = { null, Boolean.FALSE, Boolean.TRUE };
716	>	for (Boolean policy : allBooleans)
717	>	{
718	>	final int poolSize = 2;
719	>	final ScheduledThreadPoolExecutor p
720	>	= new ScheduledThreadPoolExecutor(poolSize);
721	>	final boolean effectiveDelayedPolicy = (policy != Boolean.FALSE);
722	>	final boolean effectivePeriodicPolicy = (policy == Boolean.TRUE);
723	>	final boolean effectiveRemovePolicy = (policy == Boolean.TRUE);
724	>	if (policy != null) {
725	>	p.setExecuteExistingDelayedTasksAfterShutdownPolicy(policy);
726	>	p.setContinueExistingPeriodicTasksAfterShutdownPolicy(policy);
727	>	p.setRemoveOnCancelPolicy(policy);
728	>	}
729	>	assertEquals(effectiveDelayedPolicy,
730	>	p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
731	>	assertEquals(effectivePeriodicPolicy,
732	>	p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
733	>	assertEquals(effectiveRemovePolicy,
734	>	p.getRemoveOnCancelPolicy());
735	>	// Strategy: Wedge the pool with poolSize "blocker" threads
736	>	final AtomicInteger ran = new AtomicInteger(0);
737	>	final CountDownLatch poolBlocked = new CountDownLatch(poolSize);
738	>	final CountDownLatch unblock = new CountDownLatch(1);
739	>	final CountDownLatch periodicLatch1 = new CountDownLatch(2);
740	>	final CountDownLatch periodicLatch2 = new CountDownLatch(2);
741	>	Runnable task = new CheckedRunnable() { public void realRun()
742	>	throws InterruptedException {
743	>	poolBlocked.countDown();
744	>	assertTrue(unblock.await(LONG_DELAY_MS, MILLISECONDS));
745	>	ran.getAndIncrement();
746	>	}};
747	>	List<Future<?>> blockers = new ArrayList<>();
748	>	List<Future<?>> periodics = new ArrayList<>();
749	>	List<Future<?>> delayeds = new ArrayList<>();
750	>	for (int i = 0; i < poolSize; i++)
751	>	blockers.add(p.submit(task));
752	>	assertTrue(poolBlocked.await(LONG_DELAY_MS, MILLISECONDS));
753	>
754	>	periodics.add(p.scheduleAtFixedRate(countDowner(periodicLatch1),
755	>	1, 1, MILLISECONDS));
756	>	periodics.add(p.scheduleWithFixedDelay(countDowner(periodicLatch2),
757	>	1, 1, MILLISECONDS));
758	>	delayeds.add(p.schedule(task, 1, MILLISECONDS));
759	>
760	>	assertTrue(p.getQueue().containsAll(periodics));
761	>	assertTrue(p.getQueue().containsAll(delayeds));
762	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
763	>	assertTrue(p.isShutdown());
764	>	assertFalse(p.isTerminated());
765	>	for (Future<?> periodic : periodics) {
766	>	assertTrue(effectivePeriodicPolicy ^ periodic.isCancelled());
767	>	assertTrue(effectivePeriodicPolicy ^ periodic.isDone());
768	>	}
769	>	for (Future<?> delayed : delayeds) {
770	>	assertTrue(effectiveDelayedPolicy ^ delayed.isCancelled());
771	>	assertTrue(effectiveDelayedPolicy ^ delayed.isDone());
772	>	}
773	>	if (testImplementationDetails) {
774	>	assertEquals(effectivePeriodicPolicy,
775	>	p.getQueue().containsAll(periodics));
776	>	assertEquals(effectiveDelayedPolicy,
777	>	p.getQueue().containsAll(delayeds));
778	>	}
779	>	// Release all pool threads
780	>	unblock.countDown();
781	>
782	>	for (Future<?> delayed : delayeds) {
783	>	if (effectiveDelayedPolicy) {
784	>	assertNull(delayed.get());
785	>	}
786	>	}
787	>	if (effectivePeriodicPolicy) {
788	>	assertTrue(periodicLatch1.await(LONG_DELAY_MS, MILLISECONDS));
789	>	assertTrue(periodicLatch2.await(LONG_DELAY_MS, MILLISECONDS));
790	>	for (Future<?> periodic : periodics) {
791	>	assertTrue(periodic.cancel(false));
792	>	assertTrue(periodic.isCancelled());
793	>	assertTrue(periodic.isDone());
794	>	}
795	>	}
796	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
797	>	assertTrue(p.isTerminated());
798	>	assertEquals(2 + (effectiveDelayedPolicy ? 1 : 0), ran.get());
799	>	}}
800	>
801	>	/**
802	>	* completed submit of callable returns result
803		*/
804	<	public void testPurge() {
805	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
806	<	ScheduledCancellable[] tasks = new ScheduledCancellable[5];
807	<	for(int i = 0; i < 5; i++){
808	<	tasks[i] = p1.schedule(new SmallRunnable(), 1, TimeUnit.MILLISECONDS);
804	>	public void testSubmitCallable() throws Exception {
805	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
806	>	try (PoolCleaner cleaner = cleaner(e)) {
807	>	Future<String> future = e.submit(new StringTask());
808	>	String result = future.get();
809	>	assertSame(TEST_STRING, result);
810		}
411	–	int max = 5;
412	–	if (tasks[4].cancel(true)) --max;
413	–	if (tasks[3].cancel(true)) --max;
414	–	p1.purge();
415	–	long count = p1.getTaskCount();
416	–	assertTrue(count > 0 && count <= max);
417	–	joinPool(p1);
811		}
812
813		/**
814	<	*  shutDownNow returns a list containing tasks that were not run
814	>	* completed submit of runnable returns successfully
815		*/
816	<	public void testShutDownNow() {
817	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
818	<	for(int i = 0; i < 5; i++)
819	<	p1.schedule(new SmallRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
820	<	List l = p1.shutdownNow();
821	<	assertTrue(p1.isShutdown());
822	<	assertTrue(l.size() > 0 && l.size() <= 5);
430	<	joinPool(p1);
816	>	public void testSubmitRunnable() throws Exception {
817	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
818	>	try (PoolCleaner cleaner = cleaner(e)) {
819	>	Future<?> future = e.submit(new NoOpRunnable());
820	>	future.get();
821	>	assertTrue(future.isDone());
822	>	}
823		}
824
825		/**
826	<	* In default setting, shutdown cancels periodic but not delayed
435	<	* tasks at shutdown
826	>	* completed submit of (runnable, result) returns result
827		*/
828	<	public void testShutDown1() {
829	<	try {
830	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
831	<	assertTrue(p1.getExecuteExistingDelayedTasksAfterShutdownPolicy());
832	<	assertFalse(p1.getContinueExistingPeriodicTasksAfterShutdownPolicy());
828	>	public void testSubmitRunnable2() throws Exception {
829	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
830	>	try (PoolCleaner cleaner = cleaner(e)) {
831	>	Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING);
832	>	String result = future.get();
833	>	assertSame(TEST_STRING, result);
834	>	}
835	>	}
836	>
837	>	/**
838	>	* invokeAny(null) throws NPE
839	>	*/
840	>	public void testInvokeAny1() throws Exception {
841	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
842	>	try (PoolCleaner cleaner = cleaner(e)) {
843	>	try {
844	>	e.invokeAny(null);
845	>	shouldThrow();
846	>	} catch (NullPointerException success) {}
847	>	}
848	>	}
849	>
850	>	/**
851	>	* invokeAny(empty collection) throws IAE
852	>	*/
853	>	public void testInvokeAny2() throws Exception {
854	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
855	>	try (PoolCleaner cleaner = cleaner(e)) {
856	>	try {
857	>	e.invokeAny(new ArrayList<Callable<String>>());
858	>	shouldThrow();
859	>	} catch (IllegalArgumentException success) {}
860	>	}
861	>	}
862	>
863	>	/**
864	>	* invokeAny(c) throws NPE if c has null elements
865	>	*/
866	>	public void testInvokeAny3() throws Exception {
867	>	CountDownLatch latch = new CountDownLatch(1);
868	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
869	>	try (PoolCleaner cleaner = cleaner(e)) {
870	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
871	>	l.add(latchAwaitingStringTask(latch));
872	>	l.add(null);
873	>	try {
874	>	e.invokeAny(l);
875	>	shouldThrow();
876	>	} catch (NullPointerException success) {}
877	>	latch.countDown();
878	>	}
879	>	}
880
881	<	ScheduledCancellable[] tasks = new ScheduledCancellable[5];
882	<	for(int i = 0; i < 5; i++)
883	<	tasks[i] = p1.schedule(new NoOpRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
884	<	p1.shutdown();
885	<	BlockingQueue q = p1.getQueue();
886	<	for (Iterator it = q.iterator(); it.hasNext();) {
887	<	ScheduledCancellable t = (ScheduledCancellable)it.next();
888	<	assertFalse(t.isCancelled());
881	>	/**
882	>	* invokeAny(c) throws ExecutionException if no task completes
883	>	*/
884	>	public void testInvokeAny4() throws Exception {
885	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
886	>	try (PoolCleaner cleaner = cleaner(e)) {
887	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
888	>	l.add(new NPETask());
889	>	try {
890	>	e.invokeAny(l);
891	>	shouldThrow();
892	>	} catch (ExecutionException success) {
893	>	assertTrue(success.getCause() instanceof NullPointerException);
894		}
895	<	assertTrue(p1.isShutdown());
896	<	Thread.sleep(SMALL_DELAY_MS);
897	<	for (int i = 0; i < 5; ++i) {
898	<	assertTrue(tasks[i].isDone());
899	<	assertFalse(tasks[i].isCancelled());
895	>	}
896	>	}
897	>
898	>	/**
899	>	* invokeAny(c) returns result of some task
900	>	*/
901	>	public void testInvokeAny5() throws Exception {
902	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
903	>	try (PoolCleaner cleaner = cleaner(e)) {
904	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
905	>	l.add(new StringTask());
906	>	l.add(new StringTask());
907	>	String result = e.invokeAny(l);
908	>	assertSame(TEST_STRING, result);
909	>	}
910	>	}
911	>
912	>	/**
913	>	* invokeAll(null) throws NPE
914	>	*/
915	>	public void testInvokeAll1() throws Exception {
916	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
917	>	try (PoolCleaner cleaner = cleaner(e)) {
918	>	try {
919	>	e.invokeAll(null);
920	>	shouldThrow();
921	>	} catch (NullPointerException success) {}
922	>	}
923	>	}
924	>
925	>	/**
926	>	* invokeAll(empty collection) returns empty collection
927	>	*/
928	>	public void testInvokeAll2() throws Exception {
929	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
930	>	try (PoolCleaner cleaner = cleaner(e)) {
931	>	List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>());
932	>	assertTrue(r.isEmpty());
933	>	}
934	>	}
935	>
936	>	/**
937	>	* invokeAll(c) throws NPE if c has null elements
938	>	*/
939	>	public void testInvokeAll3() throws Exception {
940	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
941	>	try (PoolCleaner cleaner = cleaner(e)) {
942	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
943	>	l.add(new StringTask());
944	>	l.add(null);
945	>	try {
946	>	e.invokeAll(l);
947	>	shouldThrow();
948	>	} catch (NullPointerException success) {}
949	>	}
950	>	}
951	>
952	>	/**
953	>	* get of invokeAll(c) throws exception on failed task
954	>	*/
955	>	public void testInvokeAll4() throws Exception {
956	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
957	>	try (PoolCleaner cleaner = cleaner(e)) {
958	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
959	>	l.add(new NPETask());
960	>	List<Future<String>> futures = e.invokeAll(l);
961	>	assertEquals(1, futures.size());
962	>	try {
963	>	futures.get(0).get();
964	>	shouldThrow();
965	>	} catch (ExecutionException success) {
966	>	assertTrue(success.getCause() instanceof NullPointerException);
967		}
458	–
968		}
969	<	catch(Exception ex) {
970	<	unexpectedException();
969	>	}
970	>
971	>	/**
972	>	* invokeAll(c) returns results of all completed tasks
973	>	*/
974	>	public void testInvokeAll5() throws Exception {
975	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
976	>	try (PoolCleaner cleaner = cleaner(e)) {
977	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
978	>	l.add(new StringTask());
979	>	l.add(new StringTask());
980	>	List<Future<String>> futures = e.invokeAll(l);
981	>	assertEquals(2, futures.size());
982	>	for (Future<String> future : futures)
983	>	assertSame(TEST_STRING, future.get());
984		}
985		}
986
987	+	/**
988	+	* timed invokeAny(null) throws NPE
989	+	*/
990	+	public void testTimedInvokeAny1() throws Exception {
991	+	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
992	+	try (PoolCleaner cleaner = cleaner(e)) {
993	+	try {
994	+	e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS);
995	+	shouldThrow();
996	+	} catch (NullPointerException success) {}
997	+	}
998	+	}
999
1000		/**
1001	<	* If setExecuteExistingDelayedTasksAfterShutdownPolicy is false,
468	<	* delayed tasks are cancelled at shutdown
1001	>	* timed invokeAny(,,null) throws NPE
1002		*/
1003	<	public void testShutDown2() {
1004	<	try {
1005	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
1006	<	p1.setExecuteExistingDelayedTasksAfterShutdownPolicy(false);
1007	<	ScheduledCancellable[] tasks = new ScheduledCancellable[5];
1008	<	for(int i = 0; i < 5; i++)
1009	<	tasks[i] = p1.schedule(new NoOpRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
1010	<	p1.shutdown();
1011	<	assertTrue(p1.isShutdown());
1012	<	BlockingQueue q = p1.getQueue();
1013	<	assertTrue(q.isEmpty());
1014	<	Thread.sleep(SMALL_DELAY_MS);
1015	<	assertTrue(p1.isTerminated());
1003	>	public void testTimedInvokeAnyNullTimeUnit() throws Exception {
1004	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1005	>	try (PoolCleaner cleaner = cleaner(e)) {
1006	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1007	>	l.add(new StringTask());
1008	>	try {
1009	>	e.invokeAny(l, MEDIUM_DELAY_MS, null);
1010	>	shouldThrow();
1011	>	} catch (NullPointerException success) {}
1012	>	}
1013	>	}
1014	>
1015	>	/**
1016	>	* timed invokeAny(empty collection) throws IAE
1017	>	*/
1018	>	public void testTimedInvokeAny2() throws Exception {
1019	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1020	>	try (PoolCleaner cleaner = cleaner(e)) {
1021	>	try {
1022	>	e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
1023	>	shouldThrow();
1024	>	} catch (IllegalArgumentException success) {}
1025		}
1026	<	catch(Exception ex) {
1027	<	unexpectedException();
1026	>	}
1027	>
1028	>	/**
1029	>	* timed invokeAny(c) throws NPE if c has null elements
1030	>	*/
1031	>	public void testTimedInvokeAny3() throws Exception {
1032	>	CountDownLatch latch = new CountDownLatch(1);
1033	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1034	>	try (PoolCleaner cleaner = cleaner(e)) {
1035	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1036	>	l.add(latchAwaitingStringTask(latch));
1037	>	l.add(null);
1038	>	try {
1039	>	e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1040	>	shouldThrow();
1041	>	} catch (NullPointerException success) {}
1042	>	latch.countDown();
1043		}
1044		}
1045
1046	+	/**
1047	+	* timed invokeAny(c) throws ExecutionException if no task completes
1048	+	*/
1049	+	public void testTimedInvokeAny4() throws Exception {
1050	+	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1051	+	try (PoolCleaner cleaner = cleaner(e)) {
1052	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
1053	+	l.add(new NPETask());
1054	+	try {
1055	+	e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1056	+	shouldThrow();
1057	+	} catch (ExecutionException success) {
1058	+	assertTrue(success.getCause() instanceof NullPointerException);
1059	+	}
1060	+	}
1061	+	}
1062
1063		/**
1064	<	* If setContinueExistingPeriodicTasksAfterShutdownPolicy is set false,
492	<	* periodic tasks are not cancelled at shutdown
1064	>	* timed invokeAny(c) returns result of some task
1065		*/
1066	<	public void testShutDown3() {
1067	<	try {
1068	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
1069	<	p1.setContinueExistingPeriodicTasksAfterShutdownPolicy(false);
1070	<	ScheduledCancellable task =
1071	<	p1.scheduleAtFixedRate(new NoOpRunnable(), 5, 5, TimeUnit.MILLISECONDS);
1072	<	p1.shutdown();
1073	<	assertTrue(p1.isShutdown());
502	<	BlockingQueue q = p1.getQueue();
503	<	assertTrue(q.isEmpty());
504	<	Thread.sleep(SHORT_DELAY_MS);
505	<	assertTrue(p1.isTerminated());
1066	>	public void testTimedInvokeAny5() throws Exception {
1067	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1068	>	try (PoolCleaner cleaner = cleaner(e)) {
1069	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1070	>	l.add(new StringTask());
1071	>	l.add(new StringTask());
1072	>	String result = e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1073	>	assertSame(TEST_STRING, result);
1074		}
1075	<	catch(Exception ex) {
1076	<	unexpectedException();
1075	>	}
1076	>
1077	>	/**
1078	>	* timed invokeAll(null) throws NPE
1079	>	*/
1080	>	public void testTimedInvokeAll1() throws Exception {
1081	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1082	>	try (PoolCleaner cleaner = cleaner(e)) {
1083	>	try {
1084	>	e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS);
1085	>	shouldThrow();
1086	>	} catch (NullPointerException success) {}
1087		}
1088		}
1089
1090		/**
1091	<	* if setContinueExistingPeriodicTasksAfterShutdownPolicy is true,
514	<	* periodic tasks are cancelled at shutdown
1091	>	* timed invokeAll(,,null) throws NPE
1092		*/
1093	<	public void testShutDown4() {
1094	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
1095	<	try {
1096	<	p1.setContinueExistingPeriodicTasksAfterShutdownPolicy(true);
1097	<	ScheduledCancellable task =
1098	<	p1.scheduleAtFixedRate(new NoOpRunnable(), 5, 5, TimeUnit.MILLISECONDS);
1099	<	assertFalse(task.isCancelled());
1100	<	p1.shutdown();
1101	<	assertFalse(task.isCancelled());
525	<	assertFalse(p1.isTerminated());
526	<	assertTrue(p1.isShutdown());
527	<	Thread.sleep(SHORT_DELAY_MS);
528	<	assertFalse(task.isCancelled());
529	<	task.cancel(true);
530	<	assertTrue(task.isCancelled());
531	<	Thread.sleep(SHORT_DELAY_MS);
532	<	assertTrue(p1.isTerminated());
1093	>	public void testTimedInvokeAllNullTimeUnit() throws Exception {
1094	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1095	>	try (PoolCleaner cleaner = cleaner(e)) {
1096	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1097	>	l.add(new StringTask());
1098	>	try {
1099	>	e.invokeAll(l, MEDIUM_DELAY_MS, null);
1100	>	shouldThrow();
1101	>	} catch (NullPointerException success) {}
1102		}
1103	<	catch(Exception ex) {
1104	<	unexpectedException();
1103	>	}
1104	>
1105	>	/**
1106	>	* timed invokeAll(empty collection) returns empty collection
1107	>	*/
1108	>	public void testTimedInvokeAll2() throws Exception {
1109	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1110	>	try (PoolCleaner cleaner = cleaner(e)) {
1111	>	List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(),
1112	>	MEDIUM_DELAY_MS, MILLISECONDS);
1113	>	assertTrue(r.isEmpty());
1114		}
1115	<	finally {
1116	<	p1.shutdownNow();
1115	>	}
1116	>
1117	>	/**
1118	>	* timed invokeAll(c) throws NPE if c has null elements
1119	>	*/
1120	>	public void testTimedInvokeAll3() 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	>	l.add(null);
1126	>	try {
1127	>	e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1128	>	shouldThrow();
1129	>	} catch (NullPointerException success) {}
1130	>	}
1131	>	}
1132	>
1133	>	/**
1134	>	* get of element of invokeAll(c) throws exception on failed task
1135	>	*/
1136	>	public void testTimedInvokeAll4() throws Exception {
1137	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1138	>	try (PoolCleaner cleaner = cleaner(e)) {
1139	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1140	>	l.add(new NPETask());
1141	>	List<Future<String>> futures =
1142	>	e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS);
1143	>	assertEquals(1, futures.size());
1144	>	try {
1145	>	futures.get(0).get();
1146	>	shouldThrow();
1147	>	} catch (ExecutionException success) {
1148	>	assertTrue(success.getCause() instanceof NullPointerException);
1149	>	}
1150	>	}
1151	>	}
1152	>
1153	>	/**
1154	>	* timed invokeAll(c) returns results of all completed tasks
1155	>	*/
1156	>	public void testTimedInvokeAll5() throws Exception {
1157	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1158	>	try (PoolCleaner cleaner = cleaner(e)) {
1159	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1160	>	l.add(new StringTask());
1161	>	l.add(new StringTask());
1162	>	List<Future<String>> futures =
1163	>	e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS);
1164	>	assertEquals(2, futures.size());
1165	>	for (Future<String> future : futures)
1166	>	assertSame(TEST_STRING, future.get());
1167	>	}
1168	>	}
1169	>
1170	>	/**
1171	>	* timed invokeAll(c) cancels tasks not completed by timeout
1172	>	*/
1173	>	public void testTimedInvokeAll6() throws Exception {
1174	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1175	>	try (PoolCleaner cleaner = cleaner(e)) {
1176	>	for (long timeout = timeoutMillis();;) {
1177	>	List<Callable<String>> tasks = new ArrayList<>();
1178	>	tasks.add(new StringTask("0"));
1179	>	tasks.add(Executors.callable(new LongPossiblyInterruptedRunnable(), TEST_STRING));
1180	>	tasks.add(new StringTask("2"));
1181	>	long startTime = System.nanoTime();
1182	>	List<Future<String>> futures =
1183	>	e.invokeAll(tasks, timeout, MILLISECONDS);
1184	>	assertEquals(tasks.size(), futures.size());
1185	>	assertTrue(millisElapsedSince(startTime) >= timeout);
1186	>	for (Future future : futures)
1187	>	assertTrue(future.isDone());
1188	>	assertTrue(futures.get(1).isCancelled());
1189	>	try {
1190	>	assertEquals("0", futures.get(0).get());
1191	>	assertEquals("2", futures.get(2).get());
1192	>	break;
1193	>	} catch (CancellationException retryWithLongerTimeout) {
1194	>	timeout *= 2;
1195	>	if (timeout >= LONG_DELAY_MS / 2)
1196	>	fail("expected exactly one task to be cancelled");
1197	>	}
1198	>	}
1199		}
1200		}
1201

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