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

Comparing jsr166/src/test/tck/ScheduledExecutorTest.java (file contents):
Revision 1.1 by dl, Sun Aug 31 19:24:55 2003 UTC vs.
Revision 1.33 by jsr166, Mon Oct 11 07:21:32 2010 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/licenses/publicdomain
5	>	* Other contributors include Andrew Wright, Jeffrey Hayes,
6	>	* Pat Fisher, Mike Judd.
7		*/
8
9		import junit.framework.*;
10		import java.util.*;
11		import java.util.concurrent.*;
12	+	import static java.util.concurrent.TimeUnit.MILLISECONDS;
13	+	import java.util.concurrent.atomic.*;
14
15	<	public class ScheduledExecutorTest extends TestCase{
13	<
14	<	boolean flag = false;
15	<
15	>	public class ScheduledExecutorTest extends JSR166TestCase {
16		public static void main(String[] args) {
17	<	junit.textui.TestRunner.run (suite());
17	>	junit.textui.TestRunner.run(suite());
18		}
19	–
20	–
19		public static Test suite() {
20	<	return new TestSuite(ScheduledExecutorTest.class);
20	>	return new TestSuite(ScheduledExecutorTest.class);
21		}
22
23	<	private static long SHORT_DELAY_MS = 100;
24	<	private static long MEDIUM_DELAY_MS = 1000;
25	<	private static long LONG_DELAY_MS = 10000;
26	<
27	<	static class MyRunnable implements Runnable {
28	<	volatile boolean waiting = true;
29	<	volatile boolean done = false;
30	<	public void run(){
31	<	try{
32	<	Thread.sleep(MEDIUM_DELAY_MS);
33	<	waiting = false;
34	<	done = true;
35	<	} catch(Exception e){}
36	<	}
37	<	}
38	<
39	<	static class MyCallable implements Callable {
42	<	volatile boolean waiting = true;
43	<	volatile boolean done = false;
44	<	public Object call(){
45	<	try{
46	<	Thread.sleep(MEDIUM_DELAY_MS);
47	<	waiting = false;
48	<	done = true;
49	<	}catch(Exception e){}
50	<	return Boolean.TRUE;
51	<	}
52	<	}
53	<
54	<	/**
55	<	*  Test to verify execute successfully runs the given Runnable
56	<	*/
57	<	public void testExecute(){
58	<	try{
59	<	MyRunnable runnable =new MyRunnable();
60	<	ScheduledExecutor one = new ScheduledExecutor(1);
61	<	one.execute(runnable);
62	<	Thread.sleep(100);
63	<	assertTrue(runnable.waiting);
64	<	one.shutdown();
65	<	// make sure the Runnable has time to complete
66	<	try{Thread.sleep(1010);}catch(InterruptedException e){}
67	<	assertFalse(runnable.waiting);
68	<	assertTrue(runnable.done);
69	<	one.shutdown();
70	<	}
71	<	catch(Exception e){
72	<	fail("unexpected exception");
73	<	}
74	<	}
75	<
76	<	/**
77	<	*  Test to verify schedule successfully runs the given Callable.
78	<	*  The waiting flag shows that the Callable is not started until
79	<	*  immediately.
80	<	*/
81	<	public void testSchedule1(){
82	<	try{
83	<	MyCallable callable = new MyCallable();
84	<	ScheduledExecutor one = new ScheduledExecutor(1);
85	<	Future f = one.schedule(callable, 500, TimeUnit.MILLISECONDS);
86	<	//      Thread.sleep(505);
87	<	assertTrue(callable.waiting);
88	<	Thread.sleep(2000);
89	<	assertTrue(callable.done);
90	<	assertEquals(Boolean.TRUE, f.get());
91	<	one.shutdown();
92	<	}catch(RejectedExecutionException e){}
93	<	catch(Exception e){}
94	<	}
95	<
96	<	/**
97	<	*  Another version of schedule, only using Runnable instead of Callable
98	<	*/
99	<	public void testSchedule3(){
100	<	try{
101	<	MyRunnable runnable = new MyRunnable();
102	<	ScheduledExecutor one = new ScheduledExecutor(1);
103	<	one.schedule(runnable, 500, TimeUnit.MILLISECONDS);
104	<	Thread.sleep(50);
105	<	assertTrue(runnable.waiting);
106	<	Thread.sleep(2000);
107	<	assertTrue(runnable.done);
108	<	one.shutdown();
109	<	} catch(Exception e){
110	<	fail("unexpected exception");
111	<	}
112	<	}
113	<
114	<	/**
115	<	*  The final version of schedule, using both long, TimeUnit and Runnable
116	<	*/
117	<	public void testSchedule4(){
118	<	try{
119	<	MyRunnable runnable = new MyRunnable();
120	<	ScheduledExecutor one = new ScheduledExecutor(1);
121	<	one.schedule(runnable, 500, TimeUnit.MILLISECONDS);
122	<	//      Thread.sleep(505);
123	<	assertTrue(runnable.waiting);
124	<	Thread.sleep(2000);
125	<	assertTrue(runnable.done);
126	<	one.shutdown();
127	<	} catch(Exception e){
128	<	fail("unexpected exception");
129	<	}
130	<	}
131	<
132	<
133	<	// exception tests
134	<
135	<	/**
136	<	*  Test to verify schedule(Runnable, long) throws RejectedExecutionException
137	<	*  This occurs on an attempt to schedule a task on a shutdown executor
138	<	*/
139	<	public void testSchedule1_RejectedExecutionException(){
140	<	try{
141	<	ScheduledExecutor se = new ScheduledExecutor(1);
142	<	se.shutdown();
143	<	se.schedule(new Runnable(){
144	<	public void run(){}
145	<	}, 10000, TimeUnit.MILLISECONDS);
146	<	fail("shoud throw");
147	<	}catch(RejectedExecutionException e){}
23	>
24	>	/**
25	>	* execute successfully executes a runnable
26	>	*/
27	>	public void testExecute() throws InterruptedException {
28	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
29	>	final CountDownLatch done = new CountDownLatch(1);
30	>	final Runnable task = new CheckedRunnable() {
31	>	public void realRun() {
32	>	done.countDown();
33	>	}};
34	>	try {
35	>	p.execute(task);
36	>	assertTrue(done.await(SMALL_DELAY_MS, MILLISECONDS));
37	>	} finally {
38	>	joinPool(p);
39	>	}
40		}
41
42	+
43		/**
44	<	*  Test to verify schedule(Callable, long, TimeUnit) throws RejectedExecutionException
152	<	*  This occurs on an attempt to schedule a task on a shutdown executor
44	>	* delayed schedule of callable successfully executes after delay
45		*/
46	<	public void testSchedule2_RejectedExecutionException(){
47	<	try{
48	<	ScheduledExecutor se = new ScheduledExecutor(1);
49	<	se.shutdown();
50	<	se.schedule(new Callable(){
51	<	public Object call(){
52	<	return Boolean.TRUE;
53	<	}
54	<	}, (long)100, TimeUnit.SECONDS);
55	<	fail("should throw");
56	<	}catch(RejectedExecutionException e){}
46	>	public void testSchedule1() throws Exception {
47	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
48	>	final long t0 = System.nanoTime();
49	>	final long timeoutNanos = SHORT_DELAY_MS * 1000L * 1000L;
50	>	final CountDownLatch done = new CountDownLatch(1);
51	>	try {
52	>	Callable task = new CheckedCallable<Boolean>() {
53	>	public Boolean realCall() {
54	>	done.countDown();
55	>	assertTrue(System.nanoTime() - t0 >= timeoutNanos);
56	>	return Boolean.TRUE;
57	>	}};
58	>	Future f = p.schedule(task, SHORT_DELAY_MS, MILLISECONDS);
59	>	assertEquals(Boolean.TRUE, f.get());
60	>	assertTrue(System.nanoTime() - t0 >= timeoutNanos);
61	>	assertTrue(done.await(0L, MILLISECONDS));
62	>	} finally {
63	>	joinPool(p);
64	>	}
65		}
66
67		/**
68	<	*  Test to verify schedule(Callable, long) throws RejectedExecutionException
69	<	*  This occurs on an attempt to schedule a task on a shutdown executor
70	<	*/
71	<	public void testSchedule3_RejectedExecutionException(){
72	<	try{
73	<	ScheduledExecutor se = new ScheduledExecutor(1);
74	<	se.shutdown();
75	<	se.schedule(new Callable(){
76	<	public Object call(){
77	<	return Boolean.TRUE;
78	<	}
79	<	},  10000, TimeUnit.MILLISECONDS);
80	<	fail("should throw");
81	<	}catch(RejectedExecutionException e){}
68	>	* delayed schedule of runnable successfully executes after delay
69	>	*/
70	>	public void testSchedule3() throws Exception {
71	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
72	>	final long t0 = System.nanoTime();
73	>	final long timeoutNanos = SHORT_DELAY_MS * 1000L * 1000L;
74	>	final CountDownLatch done = new CountDownLatch(1);
75	>	try {
76	>	Runnable task = new CheckedRunnable() {
77	>	public void realRun() {
78	>	done.countDown();
79	>	assertTrue(System.nanoTime() - t0 >= timeoutNanos);
80	>	}};
81	>	Future f = p.schedule(task, SHORT_DELAY_MS, MILLISECONDS);
82	>	assertNull(f.get());
83	>	assertTrue(System.nanoTime() - t0 >= timeoutNanos);
84	>	assertTrue(done.await(0L, MILLISECONDS));
85	>	} finally {
86	>	joinPool(p);
87	>	}
88		}
89
90		/**
91	<	*  Test to verify scheduleAtFixedRate(Runnable, long, long, TimeUnit) throws
92	<	*  RejectedExecutionException.
93	<	*  This occurs on an attempt to schedule a task on a shutdown executor
94	<	*/
95	<	public void testScheduleAtFixedRate1_RejectedExecutionException(){
96	<	try{
97	<	ScheduledExecutor se = new ScheduledExecutor(1);
91	>	* scheduleAtFixedRate executes runnable after given initial delay
92	>	*/
93	>	public void testSchedule4() throws Exception {
94	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
95	>	final long t0 = System.nanoTime();
96	>	final long timeoutNanos = SHORT_DELAY_MS * 1000L * 1000L;
97	>	final CountDownLatch done = new CountDownLatch(1);
98	>	try {
99	>	Runnable task = new CheckedRunnable() {
100	>	public void realRun() {
101	>	done.countDown();
102	>	assertTrue(System.nanoTime() - t0 >= timeoutNanos);
103	>	}};
104	>	ScheduledFuture f =
105	>	p.scheduleAtFixedRate(task, SHORT_DELAY_MS,
106	>	SHORT_DELAY_MS, MILLISECONDS);
107	>	assertTrue(done.await(SMALL_DELAY_MS, MILLISECONDS));
108	>	assertTrue(System.nanoTime() - t0 >= timeoutNanos);
109	>	f.cancel(true);
110	>	} finally {
111	>	joinPool(p);
112	>	}
113	>	}
114	>
115	>	/**
116	>	* scheduleWithFixedDelay executes runnable after given initial delay
117	>	*/
118	>	public void testSchedule5() throws InterruptedException {
119	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
120	>	final long t0 = System.nanoTime();
121	>	final long timeoutNanos = SHORT_DELAY_MS * 1000L * 1000L;
122	>	final CountDownLatch done = new CountDownLatch(1);
123	>	try {
124	>	Runnable task = new CheckedRunnable() {
125	>	public void realRun() {
126	>	done.countDown();
127	>	assertTrue(System.nanoTime() - t0 >= timeoutNanos);
128	>	}};
129	>	ScheduledFuture f =
130	>	p.scheduleWithFixedDelay(task, SHORT_DELAY_MS,
131	>	SHORT_DELAY_MS, MILLISECONDS);
132	>	assertTrue(done.await(SMALL_DELAY_MS, MILLISECONDS));
133	>	assertTrue(System.nanoTime() - t0 >= timeoutNanos);
134	>	f.cancel(true);
135	>	} finally {
136	>	joinPool(p);
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	>	RunnableCounter counter = new RunnableCounter();
151	>	ScheduledFuture h =
152	>	p.scheduleAtFixedRate(counter, 0, 1, MILLISECONDS);
153	>	Thread.sleep(SMALL_DELAY_MS);
154	>	h.cancel(true);
155	>	int c = counter.count.get();
156	>	// By time scaling conventions, we must have at least
157	>	// an execution per SHORT delay, but no more than one SHORT more
158	>	assertTrue(c >= SMALL_DELAY_MS / SHORT_DELAY_MS);
159	>	assertTrue(c <= SMALL_DELAY_MS + SHORT_DELAY_MS);
160	>	joinPool(p);
161	>	}
162	>
163	>	/**
164	>	* scheduleWithFixedDelay executes series of tasks with given period
165	>	*/
166	>	public void testFixedDelaySequence() throws InterruptedException {
167	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
168	>	RunnableCounter counter = new RunnableCounter();
169	>	ScheduledFuture h =
170	>	p.scheduleWithFixedDelay(counter, 0, 1, MILLISECONDS);
171	>	Thread.sleep(SMALL_DELAY_MS);
172	>	h.cancel(true);
173	>	int c = counter.count.get();
174	>	assertTrue(c >= SMALL_DELAY_MS / SHORT_DELAY_MS);
175	>	assertTrue(c <= SMALL_DELAY_MS + SHORT_DELAY_MS);
176	>	joinPool(p);
177	>	}
178	>
179	>
180	>	/**
181	>	* execute(null) throws NPE
182	>	*/
183	>	public void testExecuteNull() throws InterruptedException {
184	>	ScheduledThreadPoolExecutor se = null;
185	>	try {
186	>	se = new ScheduledThreadPoolExecutor(1);
187	>	se.execute(null);
188	>	shouldThrow();
189	>	} catch (NullPointerException success) {}
190	>
191	>	joinPool(se);
192	>	}
193	>
194	>	/**
195	>	* schedule(null) throws NPE
196	>	*/
197	>	public void testScheduleNull() throws InterruptedException {
198	>	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
199	>	try {
200	>	TrackedCallable callable = null;
201	>	Future f = se.schedule(callable, SHORT_DELAY_MS, MILLISECONDS);
202	>	shouldThrow();
203	>	} catch (NullPointerException success) {}
204	>	joinPool(se);
205	>	}
206	>
207	>	/**
208	>	* execute throws RejectedExecutionException if shutdown
209	>	*/
210	>	public void testSchedule1_RejectedExecutionException() throws InterruptedException {
211	>	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
212	>	try {
213		se.shutdown();
214	<	se.scheduleAtFixedRate(new Runnable(){
215	<	public void run(){}
216	<	}, 100, 100, TimeUnit.SECONDS);
217	<	fail("should throw");
218	<	}catch(RejectedExecutionException e){}
219	<	}
220	<
221	<	/**
222	<	*  Test to verify scheduleAtFixedRate(Runnable, long, long, TimeUnit) throws
223	<	*  RejectedExecutionException.
224	<	*  This occurs on an attempt to schedule a task on a shutdown executor
225	<	*/
226	<	public void testScheduleAtFixedRate2_RejectedExecutionException(){
227	<	try{
228	<	ScheduledExecutor se = new ScheduledExecutor(1);
214	>	se.schedule(new NoOpRunnable(),
215	>	MEDIUM_DELAY_MS, MILLISECONDS);
216	>	shouldThrow();
217	>	} catch (RejectedExecutionException success) {
218	>	} catch (SecurityException ok) {
219	>	}
220	>
221	>	joinPool(se);
222	>	}
223	>
224	>	/**
225	>	* schedule throws RejectedExecutionException if shutdown
226	>	*/
227	>	public void testSchedule2_RejectedExecutionException() throws InterruptedException {
228	>	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
229	>	try {
230		se.shutdown();
231	<	se.scheduleAtFixedRate(new Runnable(){
232	<	public void run(){}
233	<	},  1, 100, TimeUnit.SECONDS);
234	<	fail("should throw");
235	<	}catch(RejectedExecutionException e){}
231	>	se.schedule(new NoOpCallable(),
232	>	MEDIUM_DELAY_MS, MILLISECONDS);
233	>	shouldThrow();
234	>	} catch (RejectedExecutionException success) {
235	>	} catch (SecurityException ok) {
236	>	}
237	>	joinPool(se);
238		}
239
240		/**
241	<	*  Test to verify scheduleWithFixedDelay(Runnable, long, long, TimeUnit) throws
218	<	*  RejectedExecutionException.
219	<	*  This occurs on an attempt to schedule a task on a shutdown executor
241	>	* schedule callable throws RejectedExecutionException if shutdown
242		*/
243	<	public void testScheduleWithFixedDelay1_RejectedExecutionException(){
244	<	try{
245	<	ScheduledExecutor se = new ScheduledExecutor(1);
243	>	public void testSchedule3_RejectedExecutionException() throws InterruptedException {
244	>	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
245	>	try {
246		se.shutdown();
247	<	se.scheduleWithFixedDelay(new Runnable(){
248	<	public void run(){}
249	<	}, 100, 100, TimeUnit.SECONDS);
250	<	fail("should throw");
251	<	}catch(RejectedExecutionException e){}
247	>	se.schedule(new NoOpCallable(),
248	>	MEDIUM_DELAY_MS, MILLISECONDS);
249	>	shouldThrow();
250	>	} catch (RejectedExecutionException success) {
251	>	} catch (SecurityException ok) {
252	>	}
253	>	joinPool(se);
254		}
255
256		/**
257	<	*  Test to verify scheduleWithFixedDelay(Runnable, long, long, TimeUnit) throws
234	<	*  RejectedExecutionException.
235	<	*  This occurs on an attempt to schedule a task on a shutdown executor
257	>	* scheduleAtFixedRate throws RejectedExecutionException if shutdown
258		*/
259	<	public void testScheduleWithFixedDelay2_RejectedExecutionException(){
260	<	try{
261	<	ScheduledExecutor se = new ScheduledExecutor(1);
259	>	public void testScheduleAtFixedRate1_RejectedExecutionException() throws InterruptedException {
260	>	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
261	>	try {
262		se.shutdown();
263	<	se.scheduleWithFixedDelay(new Runnable(){
264	<	public void run(){}
265	<	},  1, 100, TimeUnit.SECONDS);
266	<	fail("should throw");
267	<	}catch(RejectedExecutionException e){}
263	>	se.scheduleAtFixedRate(new NoOpRunnable(),
264	>	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS);
265	>	shouldThrow();
266	>	} catch (RejectedExecutionException success) {
267	>	} catch (SecurityException ok) {
268	>	}
269	>	joinPool(se);
270		}
271
272		/**
273	<	*  Test to verify execute throws RejectedExecutionException
250	<	*  This occurs on an attempt to schedule a task on a shutdown executor
273	>	* scheduleWithFixedDelay throws RejectedExecutionException if shutdown
274		*/
275	<	public void testExecute_RejectedExecutionException(){
276	<	try{
277	<	ScheduledExecutor se = new ScheduledExecutor(1);
275	>	public void testScheduleWithFixedDelay1_RejectedExecutionException() throws InterruptedException {
276	>	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
277	>	try {
278		se.shutdown();
279	<	se.execute(new Runnable(){
280	<	public void run(){}
281	<	});
282	<	fail("should throw");
283	<	}catch(RejectedExecutionException e){}
279	>	se.scheduleWithFixedDelay(new NoOpRunnable(),
280	>	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS);
281	>	shouldThrow();
282	>	} catch (RejectedExecutionException success) {
283	>	} catch (SecurityException ok) {
284	>	}
285	>	joinPool(se);
286	>	}
287	>
288	>	/**
289	>	* getActiveCount increases but doesn't overestimate, when a
290	>	* thread becomes active
291	>	*/
292	>	public void testGetActiveCount() throws InterruptedException {
293	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(2);
294	>	final CountDownLatch threadStarted = new CountDownLatch(1);
295	>	final CountDownLatch done = new CountDownLatch(1);
296	>	try {
297	>	assertEquals(0, p.getActiveCount());
298	>	p.execute(new CheckedRunnable() {
299	>	public void realRun() throws InterruptedException {
300	>	threadStarted.countDown();
301	>	assertEquals(1, p.getActiveCount());
302	>	done.await();
303	>	}});
304	>	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
305	>	assertEquals(1, p.getActiveCount());
306	>	} finally {
307	>	done.countDown();
308	>	joinPool(p);
309	>	}
310	>	}
311	>
312	>	/**
313	>	* getCompletedTaskCount increases, but doesn't overestimate,
314	>	* when tasks complete
315	>	*/
316	>	public void testGetCompletedTaskCount() throws InterruptedException {
317	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(2);
318	>	final CountDownLatch threadStarted = new CountDownLatch(1);
319	>	final CountDownLatch threadProceed = new CountDownLatch(1);
320	>	final CountDownLatch threadDone = new CountDownLatch(1);
321	>	try {
322	>	assertEquals(0, p.getCompletedTaskCount());
323	>	p.execute(new CheckedRunnable() {
324	>	public void realRun() throws InterruptedException {
325	>	threadStarted.countDown();
326	>	assertEquals(0, p.getCompletedTaskCount());
327	>	threadProceed.await();
328	>	threadDone.countDown();
329	>	}});
330	>	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
331	>	assertEquals(0, p.getCompletedTaskCount());
332	>	threadProceed.countDown();
333	>	threadDone.await();
334	>	Thread.sleep(SHORT_DELAY_MS);
335	>	assertEquals(1, p.getCompletedTaskCount());
336	>	} finally {
337	>	joinPool(p);
338	>	}
339	>	}
340	>
341	>	/**
342	>	* getCorePoolSize returns size given in constructor if not otherwise set
343	>	*/
344	>	public void testGetCorePoolSize() throws InterruptedException {
345	>	ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
346	>	assertEquals(1, p.getCorePoolSize());
347	>	joinPool(p);
348	>	}
349	>
350	>	/**
351	>	* getLargestPoolSize increases, but doesn't overestimate, when
352	>	* multiple threads active
353	>	*/
354	>	public void testGetLargestPoolSize() throws InterruptedException {
355	>	final int THREADS = 3;
356	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(THREADS);
357	>	final CountDownLatch threadsStarted = new CountDownLatch(THREADS);
358	>	final CountDownLatch done = new CountDownLatch(1);
359	>	try {
360	>	assertEquals(0, p.getLargestPoolSize());
361	>	for (int i = 0; i < THREADS; i++)
362	>	p.execute(new CheckedRunnable() {
363	>	public void realRun() throws InterruptedException {
364	>	threadsStarted.countDown();
365	>	done.await();
366	>	assertEquals(THREADS, p.getLargestPoolSize());
367	>	}});
368	>	assertTrue(threadsStarted.await(SMALL_DELAY_MS, MILLISECONDS));
369	>	assertEquals(THREADS, p.getLargestPoolSize());
370	>	} finally {
371	>	done.countDown();
372	>	joinPool(p);
373	>	assertEquals(THREADS, p.getLargestPoolSize());
374	>	}
375		}
376
377	+	/**
378	+	* getPoolSize increases, but doesn't overestimate, when threads
379	+	* become active
380	+	*/
381	+	public void testGetPoolSize() throws InterruptedException {
382	+	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
383	+	final CountDownLatch threadStarted = new CountDownLatch(1);
384	+	final CountDownLatch done = new CountDownLatch(1);
385	+	try {
386	+	assertEquals(0, p.getPoolSize());
387	+	p.execute(new CheckedRunnable() {
388	+	public void realRun() throws InterruptedException {
389	+	threadStarted.countDown();
390	+	assertEquals(1, p.getPoolSize());
391	+	done.await();
392	+	}});
393	+	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
394	+	assertEquals(1, p.getPoolSize());
395	+	} finally {
396	+	done.countDown();
397	+	joinPool(p);
398	+	}
399	+	}
400	+
401	+	/**
402	+	* getTaskCount increases, but doesn't overestimate, when tasks
403	+	* submitted
404	+	*/
405	+	public void testGetTaskCount() throws InterruptedException {
406	+	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
407	+	final CountDownLatch threadStarted = new CountDownLatch(1);
408	+	final CountDownLatch done = new CountDownLatch(1);
409	+	final int TASKS = 5;
410	+	try {
411	+	assertEquals(0, p.getTaskCount());
412	+	for (int i = 0; i < TASKS; i++)
413	+	p.execute(new CheckedRunnable() {
414	+	public void realRun() throws InterruptedException {
415	+	threadStarted.countDown();
416	+	done.await();
417	+	}});
418	+	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
419	+	assertEquals(TASKS, p.getTaskCount());
420	+	} finally {
421	+	done.countDown();
422	+	joinPool(p);
423	+	}
424	+	}
425	+
426	+	/**
427	+	* getThreadFactory returns factory in constructor if not set
428	+	*/
429	+	public void testGetThreadFactory() throws InterruptedException {
430	+	ThreadFactory tf = new SimpleThreadFactory();
431	+	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1, tf);
432	+	assertSame(tf, p.getThreadFactory());
433	+	joinPool(p);
434	+	}
435	+
436	+	/**
437	+	* setThreadFactory sets the thread factory returned by getThreadFactory
438	+	*/
439	+	public void testSetThreadFactory() throws InterruptedException {
440	+	ThreadFactory tf = new SimpleThreadFactory();
441	+	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
442	+	p.setThreadFactory(tf);
443	+	assertSame(tf, p.getThreadFactory());
444	+	joinPool(p);
445	+	}
446	+
447	+	/**
448	+	* setThreadFactory(null) throws NPE
449	+	*/
450	+	public void testSetThreadFactoryNull() throws InterruptedException {
451	+	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
452	+	try {
453	+	p.setThreadFactory(null);
454	+	shouldThrow();
455	+	} catch (NullPointerException success) {
456	+	} finally {
457	+	joinPool(p);
458	+	}
459	+	}
460	+
461	+	/**
462	+	* isShutDown is false before shutdown, true after
463	+	*/
464	+	public void testIsShutdown() {
465	+
466	+	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
467	+	try {
468	+	assertFalse(p.isShutdown());
469	+	}
470	+	finally {
471	+	try { p.shutdown(); } catch (SecurityException ok) { return; }
472	+	}
473	+	assertTrue(p.isShutdown());
474	+	}
475	+
476	+
477	+	/**
478	+	* isTerminated is false before termination, true after
479	+	*/
480	+	public void testIsTerminated() throws InterruptedException {
481	+	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
482	+	final CountDownLatch threadStarted = new CountDownLatch(1);
483	+	final CountDownLatch done = new CountDownLatch(1);
484	+	assertFalse(p.isTerminated());
485	+	try {
486	+	p.execute(new CheckedRunnable() {
487	+	public void realRun() throws InterruptedException {
488	+	threadStarted.countDown();
489	+	assertFalse(p.isTerminated());
490	+	done.await();
491	+	}});
492	+	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
493	+	done.countDown();
494	+	} finally {
495	+	try { p.shutdown(); } catch (SecurityException ok) { return; }
496	+	}
497	+	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
498	+	assertTrue(p.isTerminated());
499	+	}
500	+
501	+	/**
502	+	* isTerminating is not true when running or when terminated
503	+	*/
504	+	public void testIsTerminating() throws InterruptedException {
505	+	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
506	+	final CountDownLatch threadStarted = new CountDownLatch(1);
507	+	final CountDownLatch done = new CountDownLatch(1);
508	+	try {
509	+	assertFalse(p.isTerminating());
510	+	p.execute(new CheckedRunnable() {
511	+	public void realRun() throws InterruptedException {
512	+	threadStarted.countDown();
513	+	assertFalse(p.isTerminating());
514	+	done.await();
515	+	}});
516	+	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
517	+	assertFalse(p.isTerminating());
518	+	done.countDown();
519	+	} finally {
520	+	try { p.shutdown(); } catch (SecurityException ok) { return; }
521	+	}
522	+	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
523	+	assertTrue(p.isTerminated());
524	+	assertFalse(p.isTerminating());
525	+	}
526	+
527	+	/**
528	+	* getQueue returns the work queue, which contains queued tasks
529	+	*/
530	+	public void testGetQueue() throws InterruptedException {
531	+	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
532	+	final CountDownLatch threadStarted = new CountDownLatch(1);
533	+	final CountDownLatch done = new CountDownLatch(1);
534	+	try {
535	+	ScheduledFuture[] tasks = new ScheduledFuture[5];
536	+	for (int i = 0; i < tasks.length; i++) {
537	+	Runnable r = new CheckedRunnable() {
538	+	public void realRun() throws InterruptedException {
539	+	threadStarted.countDown();
540	+	done.await();
541	+	}};
542	+	tasks[i] = p.schedule(r, 1, MILLISECONDS);
543	+	}
544	+	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
545	+	BlockingQueue<Runnable> q = p.getQueue();
546	+	assertTrue(q.contains(tasks[tasks.length - 1]));
547	+	assertFalse(q.contains(tasks[0]));
548	+	} finally {
549	+	done.countDown();
550	+	joinPool(p);
551	+	}
552	+	}
553	+
554	+	/**
555	+	* remove(task) removes queued task, and fails to remove active task
556	+	*/
557	+	public void testRemove() throws InterruptedException {
558	+	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
559	+	ScheduledFuture[] tasks = new ScheduledFuture[5];
560	+	final CountDownLatch threadStarted = new CountDownLatch(1);
561	+	final CountDownLatch done = new CountDownLatch(1);
562	+	try {
563	+	for (int i = 0; i < tasks.length; i++) {
564	+	Runnable r = new CheckedRunnable() {
565	+	public void realRun() throws InterruptedException {
566	+	threadStarted.countDown();
567	+	done.await();
568	+	}};
569	+	tasks[i] = p.schedule(r, 1, MILLISECONDS);
570	+	}
571	+	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
572	+	BlockingQueue<Runnable> q = p.getQueue();
573	+	assertFalse(p.remove((Runnable)tasks[0]));
574	+	assertTrue(q.contains((Runnable)tasks[4]));
575	+	assertTrue(q.contains((Runnable)tasks[3]));
576	+	assertTrue(p.remove((Runnable)tasks[4]));
577	+	assertFalse(p.remove((Runnable)tasks[4]));
578	+	assertFalse(q.contains((Runnable)tasks[4]));
579	+	assertTrue(q.contains((Runnable)tasks[3]));
580	+	assertTrue(p.remove((Runnable)tasks[3]));
581	+	assertFalse(q.contains((Runnable)tasks[3]));
582	+	} finally {
583	+	done.countDown();
584	+	joinPool(p);
585	+	}
586	+	}
587	+
588	+	/**
589	+	* purge removes cancelled tasks from the queue
590	+	*/
591	+	public void testPurge() throws InterruptedException {
592	+	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
593	+	ScheduledFuture[] tasks = new ScheduledFuture[5];
594	+	for (int i = 0; i < tasks.length; i++) {
595	+	tasks[i] = p.schedule(new SmallPossiblyInterruptedRunnable(), SHORT_DELAY_MS, MILLISECONDS);
596	+	}
597	+	try {
598	+	int max = tasks.length;
599	+	if (tasks[4].cancel(true)) --max;
600	+	if (tasks[3].cancel(true)) --max;
601	+	// There must eventually be an interference-free point at
602	+	// which purge will not fail. (At worst, when queue is empty.)
603	+	int k;
604	+	for (k = 0; k < SMALL_DELAY_MS; ++k) {
605	+	p.purge();
606	+	long count = p.getTaskCount();
607	+	if (count >= 0 && count <= max)
608	+	break;
609	+	Thread.sleep(1);
610	+	}
611	+	assertTrue(k < SMALL_DELAY_MS);
612	+	} finally {
613	+	for (ScheduledFuture task : tasks)
614	+	task.cancel(true);
615	+	joinPool(p);
616	+	}
617	+	}
618	+
619	+	/**
620	+	* shutDownNow returns a list containing tasks that were not run
621	+	*/
622	+	public void testShutDownNow() throws InterruptedException {
623	+	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
624	+	for (int i = 0; i < 5; i++)
625	+	p.schedule(new SmallPossiblyInterruptedRunnable(), SHORT_DELAY_MS, MILLISECONDS);
626	+	List l;
627	+	try {
628	+	l = p.shutdownNow();
629	+	} catch (SecurityException ok) {
630	+	return;
631	+	}
632	+	assertTrue(p.isShutdown());
633	+	assertTrue(l.size() > 0 && l.size() <= 5);
634	+	joinPool(p);
635	+	}
636	+
637	+	/**
638	+	* In default setting, shutdown cancels periodic but not delayed
639	+	* tasks at shutdown
640	+	*/
641	+	public void testShutDown1() throws InterruptedException {
642	+	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
643	+	assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
644	+	assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
645	+
646	+	ScheduledFuture[] tasks = new ScheduledFuture[5];
647	+	for (int i = 0; i < tasks.length; i++)
648	+	tasks[i] = p.schedule(new NoOpRunnable(),
649	+	SHORT_DELAY_MS, MILLISECONDS);
650	+	try { p.shutdown(); } catch (SecurityException ok) { return; }
651	+	BlockingQueue<Runnable> q = p.getQueue();
652	+	for (ScheduledFuture task : tasks) {
653	+	assertFalse(task.isDone());
654	+	assertFalse(task.isCancelled());
655	+	assertTrue(q.contains(task));
656	+	}
657	+	assertTrue(p.isShutdown());
658	+	assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS));
659	+	assertTrue(p.isTerminated());
660	+	for (ScheduledFuture task : tasks) {
661	+	assertTrue(task.isDone());
662	+	assertFalse(task.isCancelled());
663	+	}
664	+	}
665	+
666	+
667	+	/**
668	+	* If setExecuteExistingDelayedTasksAfterShutdownPolicy is false,
669	+	* delayed tasks are cancelled at shutdown
670	+	*/
671	+	public void testShutDown2() throws InterruptedException {
672	+	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
673	+	p.setExecuteExistingDelayedTasksAfterShutdownPolicy(false);
674	+	ScheduledFuture[] tasks = new ScheduledFuture[5];
675	+	for (int i = 0; i < tasks.length; i++)
676	+	tasks[i] = p.schedule(new NoOpRunnable(),
677	+	SHORT_DELAY_MS, MILLISECONDS);
678	+	BlockingQueue q = p.getQueue();
679	+	assertEquals(tasks.length, q.size());
680	+	try { p.shutdown(); } catch (SecurityException ok) { return; }
681	+	assertTrue(p.isShutdown());
682	+	assertTrue(q.isEmpty());
683	+	assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS));
684	+	assertTrue(p.isTerminated());
685	+	for (ScheduledFuture task : tasks) {
686	+	assertTrue(task.isDone());
687	+	assertTrue(task.isCancelled());
688	+	}
689	+	}
690	+
691	+	/**
692	+	* If setContinueExistingPeriodicTasksAfterShutdownPolicy is set false,
693	+	* periodic tasks are cancelled at shutdown
694	+	*/
695	+	public void testShutDown3() throws InterruptedException {
696	+	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
697	+	p.setContinueExistingPeriodicTasksAfterShutdownPolicy(false);
698	+	ScheduledFuture task =
699	+	p.scheduleAtFixedRate(new NoOpRunnable(), 5, 5, MILLISECONDS);
700	+	try { p.shutdown(); } catch (SecurityException ok) { return; }
701	+	assertTrue(p.isShutdown());
702	+	BlockingQueue q = p.getQueue();
703	+	assertTrue(p.getQueue().isEmpty());
704	+	assertTrue(task.isDone());
705	+	assertTrue(task.isCancelled());
706	+	assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS));
707	+	assertTrue(p.isTerminated());
708	+	}
709	+
710	+	/**
711	+	* if setContinueExistingPeriodicTasksAfterShutdownPolicy is true,
712	+	* periodic tasks are not cancelled at shutdown
713	+	*/
714	+	public void testShutDown4() throws InterruptedException {
715	+	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
716	+	p.setContinueExistingPeriodicTasksAfterShutdownPolicy(true);
717	+	final CountDownLatch counter = new CountDownLatch(2);
718	+	try {
719	+	final Runnable r = new CheckedRunnable() {
720	+	public void realRun() {
721	+	counter.countDown();
722	+	}};
723	+	ScheduledFuture task =
724	+	p.scheduleAtFixedRate(r, 1, 1, MILLISECONDS);
725	+	assertFalse(task.isDone());
726	+	assertFalse(task.isCancelled());
727	+	try { p.shutdown(); } catch (SecurityException ok) { return; }
728	+	assertFalse(task.isCancelled());
729	+	assertFalse(p.isTerminated());
730	+	assertTrue(p.isShutdown());
731	+	assertTrue(counter.await(SMALL_DELAY_MS, MILLISECONDS));
732	+	assertFalse(task.isCancelled());
733	+	assertTrue(task.cancel(false));
734	+	assertTrue(task.isDone());
735	+	assertTrue(task.isCancelled());
736	+	assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS));
737	+	assertTrue(p.isTerminated());
738	+	}
739	+	finally {
740	+	joinPool(p);
741	+	}
742	+	}
743	+
744	+	/**
745	+	* completed submit of callable returns result
746	+	*/
747	+	public void testSubmitCallable() throws Exception {
748	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
749	+	try {
750	+	Future<String> future = e.submit(new StringTask());
751	+	String result = future.get();
752	+	assertSame(TEST_STRING, result);
753	+	} finally {
754	+	joinPool(e);
755	+	}
756	+	}
757	+
758	+	/**
759	+	* completed submit of runnable returns successfully
760	+	*/
761	+	public void testSubmitRunnable() throws Exception {
762	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
763	+	try {
764	+	Future<?> future = e.submit(new NoOpRunnable());
765	+	future.get();
766	+	assertTrue(future.isDone());
767	+	} finally {
768	+	joinPool(e);
769	+	}
770	+	}
771	+
772	+	/**
773	+	* completed submit of (runnable, result) returns result
774	+	*/
775	+	public void testSubmitRunnable2() throws Exception {
776	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
777	+	try {
778	+	Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING);
779	+	String result = future.get();
780	+	assertSame(TEST_STRING, result);
781	+	} finally {
782	+	joinPool(e);
783	+	}
784	+	}
785	+
786	+	/**
787	+	* invokeAny(null) throws NPE
788	+	*/
789	+	public void testInvokeAny1() throws Exception {
790	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
791	+	try {
792	+	e.invokeAny(null);
793	+	shouldThrow();
794	+	} catch (NullPointerException success) {
795	+	} finally {
796	+	joinPool(e);
797	+	}
798	+	}
799	+
800	+	/**
801	+	* invokeAny(empty collection) throws IAE
802	+	*/
803	+	public void testInvokeAny2() throws Exception {
804	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
805	+	try {
806	+	e.invokeAny(new ArrayList<Callable<String>>());
807	+	shouldThrow();
808	+	} catch (IllegalArgumentException success) {
809	+	} finally {
810	+	joinPool(e);
811	+	}
812	+	}
813	+
814	+	/**
815	+	* invokeAny(c) throws NPE if c has null elements
816	+	*/
817	+	public void testInvokeAny3() throws Exception {
818	+	CountDownLatch latch = new CountDownLatch(1);
819	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
820	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
821	+	l.add(latchAwaitingStringTask(latch));
822	+	l.add(null);
823	+	try {
824	+	e.invokeAny(l);
825	+	shouldThrow();
826	+	} catch (NullPointerException success) {
827	+	} finally {
828	+	latch.countDown();
829	+	joinPool(e);
830	+	}
831	+	}
832	+
833	+	/**
834	+	* invokeAny(c) throws ExecutionException if no task completes
835	+	*/
836	+	public void testInvokeAny4() throws Exception {
837	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
838	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
839	+	l.add(new NPETask());
840	+	try {
841	+	e.invokeAny(l);
842	+	shouldThrow();
843	+	} catch (ExecutionException success) {
844	+	assertTrue(success.getCause() instanceof NullPointerException);
845	+	} finally {
846	+	joinPool(e);
847	+	}
848	+	}
849	+
850	+	/**
851	+	* invokeAny(c) returns result of some task
852	+	*/
853	+	public void testInvokeAny5() throws Exception {
854	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
855	+	try {
856	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
857	+	l.add(new StringTask());
858	+	l.add(new StringTask());
859	+	String result = e.invokeAny(l);
860	+	assertSame(TEST_STRING, result);
861	+	} finally {
862	+	joinPool(e);
863	+	}
864	+	}
865	+
866	+	/**
867	+	* invokeAll(null) throws NPE
868	+	*/
869	+	public void testInvokeAll1() throws Exception {
870	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
871	+	try {
872	+	e.invokeAll(null);
873	+	shouldThrow();
874	+	} catch (NullPointerException success) {
875	+	} finally {
876	+	joinPool(e);
877	+	}
878	+	}
879	+
880	+	/**
881	+	* invokeAll(empty collection) returns empty collection
882	+	*/
883	+	public void testInvokeAll2() throws Exception {
884	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
885	+	try {
886	+	List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>());
887	+	assertTrue(r.isEmpty());
888	+	} finally {
889	+	joinPool(e);
890	+	}
891	+	}
892	+
893	+	/**
894	+	* invokeAll(c) throws NPE if c has null elements
895	+	*/
896	+	public void testInvokeAll3() throws Exception {
897	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
898	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
899	+	l.add(new StringTask());
900	+	l.add(null);
901	+	try {
902	+	e.invokeAll(l);
903	+	shouldThrow();
904	+	} catch (NullPointerException success) {
905	+	} finally {
906	+	joinPool(e);
907	+	}
908	+	}
909	+
910	+	/**
911	+	* get of invokeAll(c) throws exception on failed task
912	+	*/
913	+	public void testInvokeAll4() throws Exception {
914	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
915	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
916	+	l.add(new NPETask());
917	+	List<Future<String>> futures = e.invokeAll(l);
918	+	assertEquals(1, futures.size());
919	+	try {
920	+	futures.get(0).get();
921	+	shouldThrow();
922	+	} catch (ExecutionException success) {
923	+	assertTrue(success.getCause() instanceof NullPointerException);
924	+	} finally {
925	+	joinPool(e);
926	+	}
927	+	}
928	+
929	+	/**
930	+	* invokeAll(c) returns results of all completed tasks
931	+	*/
932	+	public void testInvokeAll5() throws Exception {
933	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
934	+	try {
935	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
936	+	l.add(new StringTask());
937	+	l.add(new StringTask());
938	+	List<Future<String>> futures = e.invokeAll(l);
939	+	assertEquals(2, futures.size());
940	+	for (Future<String> future : futures)
941	+	assertSame(TEST_STRING, future.get());
942	+	} finally {
943	+	joinPool(e);
944	+	}
945	+	}
946	+
947	+	/**
948	+	* timed invokeAny(null) throws NPE
949	+	*/
950	+	public void testTimedInvokeAny1() throws Exception {
951	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
952	+	try {
953	+	e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS);
954	+	shouldThrow();
955	+	} catch (NullPointerException success) {
956	+	} finally {
957	+	joinPool(e);
958	+	}
959	+	}
960	+
961	+	/**
962	+	* timed invokeAny(,,null) throws NPE
963	+	*/
964	+	public void testTimedInvokeAnyNullTimeUnit() throws Exception {
965	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
966	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
967	+	l.add(new StringTask());
968	+	try {
969	+	e.invokeAny(l, MEDIUM_DELAY_MS, null);
970	+	shouldThrow();
971	+	} catch (NullPointerException success) {
972	+	} finally {
973	+	joinPool(e);
974	+	}
975	+	}
976	+
977	+	/**
978	+	* timed invokeAny(empty collection) throws IAE
979	+	*/
980	+	public void testTimedInvokeAny2() throws Exception {
981	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
982	+	try {
983	+	e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
984	+	shouldThrow();
985	+	} catch (IllegalArgumentException success) {
986	+	} finally {
987	+	joinPool(e);
988	+	}
989	+	}
990	+
991	+	/**
992	+	* timed invokeAny(c) throws NPE if c has null elements
993	+	*/
994	+	public void testTimedInvokeAny3() throws Exception {
995	+	CountDownLatch latch = new CountDownLatch(1);
996	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
997	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
998	+	l.add(latchAwaitingStringTask(latch));
999	+	l.add(null);
1000	+	try {
1001	+	e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1002	+	shouldThrow();
1003	+	} catch (NullPointerException success) {
1004	+	} finally {
1005	+	latch.countDown();
1006	+	joinPool(e);
1007	+	}
1008	+	}
1009	+
1010	+	/**
1011	+	* timed invokeAny(c) throws ExecutionException if no task completes
1012	+	*/
1013	+	public void testTimedInvokeAny4() throws Exception {
1014	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1015	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
1016	+	l.add(new NPETask());
1017	+	try {
1018	+	e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1019	+	shouldThrow();
1020	+	} catch (ExecutionException success) {
1021	+	assertTrue(success.getCause() instanceof NullPointerException);
1022	+	} finally {
1023	+	joinPool(e);
1024	+	}
1025	+	}
1026	+
1027	+	/**
1028	+	* timed invokeAny(c) returns result of some task
1029	+	*/
1030	+	public void testTimedInvokeAny5() throws Exception {
1031	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1032	+	try {
1033	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
1034	+	l.add(new StringTask());
1035	+	l.add(new StringTask());
1036	+	String result = e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1037	+	assertSame(TEST_STRING, result);
1038	+	} finally {
1039	+	joinPool(e);
1040	+	}
1041	+	}
1042	+
1043	+	/**
1044	+	* timed invokeAll(null) throws NPE
1045	+	*/
1046	+	public void testTimedInvokeAll1() throws Exception {
1047	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1048	+	try {
1049	+	e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS);
1050	+	shouldThrow();
1051	+	} catch (NullPointerException success) {
1052	+	} finally {
1053	+	joinPool(e);
1054	+	}
1055	+	}
1056	+
1057	+	/**
1058	+	* timed invokeAll(,,null) throws NPE
1059	+	*/
1060	+	public void testTimedInvokeAllNullTimeUnit() throws Exception {
1061	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1062	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
1063	+	l.add(new StringTask());
1064	+	try {
1065	+	e.invokeAll(l, MEDIUM_DELAY_MS, null);
1066	+	shouldThrow();
1067	+	} catch (NullPointerException success) {
1068	+	} finally {
1069	+	joinPool(e);
1070	+	}
1071	+	}
1072	+
1073	+	/**
1074	+	* timed invokeAll(empty collection) returns empty collection
1075	+	*/
1076	+	public void testTimedInvokeAll2() throws Exception {
1077	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1078	+	try {
1079	+	List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
1080	+	assertTrue(r.isEmpty());
1081	+	} finally {
1082	+	joinPool(e);
1083	+	}
1084	+	}
1085	+
1086	+	/**
1087	+	* timed invokeAll(c) throws NPE if c has null elements
1088	+	*/
1089	+	public void testTimedInvokeAll3() throws Exception {
1090	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1091	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
1092	+	l.add(new StringTask());
1093	+	l.add(null);
1094	+	try {
1095	+	e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1096	+	shouldThrow();
1097	+	} catch (NullPointerException success) {
1098	+	} finally {
1099	+	joinPool(e);
1100	+	}
1101	+	}
1102	+
1103	+	/**
1104	+	* get of element of invokeAll(c) throws exception on failed task
1105	+	*/
1106	+	public void testTimedInvokeAll4() throws Exception {
1107	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1108	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
1109	+	l.add(new NPETask());
1110	+	List<Future<String>> futures =
1111	+	e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1112	+	assertEquals(1, futures.size());
1113	+	try {
1114	+	futures.get(0).get();
1115	+	shouldThrow();
1116	+	} catch (ExecutionException success) {
1117	+	assertTrue(success.getCause() instanceof NullPointerException);
1118	+	} finally {
1119	+	joinPool(e);
1120	+	}
1121	+	}
1122	+
1123	+	/**
1124	+	* timed invokeAll(c) returns results of all completed tasks
1125	+	*/
1126	+	public void testTimedInvokeAll5() throws Exception {
1127	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1128	+	try {
1129	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
1130	+	l.add(new StringTask());
1131	+	l.add(new StringTask());
1132	+	List<Future<String>> futures =
1133	+	e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1134	+	assertEquals(2, futures.size());
1135	+	for (Future<String> future : futures)
1136	+	assertSame(TEST_STRING, future.get());
1137	+	} finally {
1138	+	joinPool(e);
1139	+	}
1140	+	}
1141	+
1142	+	/**
1143	+	* timed invokeAll(c) cancels tasks not completed by timeout
1144	+	*/
1145	+	public void testTimedInvokeAll6() throws Exception {
1146	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1147	+	try {
1148	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
1149	+	l.add(new StringTask());
1150	+	l.add(Executors.callable(new MediumPossiblyInterruptedRunnable(), TEST_STRING));
1151	+	l.add(new StringTask());
1152	+	List<Future<String>> futures =
1153	+	e.invokeAll(l, SHORT_DELAY_MS, MILLISECONDS);
1154	+	assertEquals(3, futures.size());
1155	+	Iterator<Future<String>> it = futures.iterator();
1156	+	Future<String> f1 = it.next();
1157	+	Future<String> f2 = it.next();
1158	+	Future<String> f3 = it.next();
1159	+	assertTrue(f1.isDone());
1160	+	assertTrue(f2.isDone());
1161	+	assertTrue(f3.isDone());
1162	+	assertFalse(f1.isCancelled());
1163	+	assertTrue(f2.isCancelled());
1164	+	} finally {
1165	+	joinPool(e);
1166	+	}
1167	+	}
1168	+
1169	+
1170		}

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