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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 1.47 by jsr166, Tue Sep 24 18:35:21 2013 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.*;
12	+	import static java.util.concurrent.TimeUnit.MILLISECONDS;
13	+	import java.util.concurrent.atomic.AtomicInteger;
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	<
41	<	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	>	* execute successfully executes a runnable
25	>	*/
26	>	public void testExecute() throws InterruptedException {
27	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
28	>	final CountDownLatch done = new CountDownLatch(1);
29	>	final Runnable task = new CheckedRunnable() {
30	>	public void realRun() {
31	>	done.countDown();
32	>	}};
33	>	try {
34	>	p.execute(task);
35	>	assertTrue(done.await(SMALL_DELAY_MS, MILLISECONDS));
36	>	} finally {
37	>	joinPool(p);
38	>	}
39		}
40
41		/**
42	<	*  Test to verify schedule(Callable, long, TimeUnit) throws RejectedExecutionException
152	<	*  This occurs on an attempt to schedule a task on a shutdown executor
42	>	* delayed schedule of callable successfully executes after delay
43		*/
44	<	public void testSchedule2_RejectedExecutionException(){
45	<	try{
46	<	ScheduledExecutor se = new ScheduledExecutor(1);
47	<	se.shutdown();
48	<	se.schedule(new Callable(){
49	<	public Object call(){
50	<	return Boolean.TRUE;
51	<	}
52	<	}, (long)100, TimeUnit.SECONDS);
53	<	fail("should throw");
54	<	}catch(RejectedExecutionException e){}
44	>	public void testSchedule1() throws Exception {
45	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
46	>	final long startTime = System.nanoTime();
47	>	final CountDownLatch done = new CountDownLatch(1);
48	>	try {
49	>	Callable task = new CheckedCallable<Boolean>() {
50	>	public Boolean realCall() {
51	>	done.countDown();
52	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
53	>	return Boolean.TRUE;
54	>	}};
55	>	Future f = p.schedule(task, timeoutMillis(), MILLISECONDS);
56	>	assertSame(Boolean.TRUE, f.get());
57	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
58	>	assertTrue(done.await(0L, MILLISECONDS));
59	>	} finally {
60	>	joinPool(p);
61	>	}
62		}
63
64		/**
65	<	*  Test to verify schedule(Callable, long) throws RejectedExecutionException
66	<	*  This occurs on an attempt to schedule a task on a shutdown executor
67	<	*/
68	<	public void testSchedule3_RejectedExecutionException(){
69	<	try{
70	<	ScheduledExecutor se = new ScheduledExecutor(1);
71	<	se.shutdown();
72	<	se.schedule(new Callable(){
73	<	public Object call(){
74	<	return Boolean.TRUE;
75	<	}
76	<	},  10000, TimeUnit.MILLISECONDS);
77	<	fail("should throw");
78	<	}catch(RejectedExecutionException e){}
65	>	* delayed schedule of runnable successfully executes after delay
66	>	*/
67	>	public void testSchedule3() throws Exception {
68	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
69	>	final long startTime = System.nanoTime();
70	>	final CountDownLatch done = new CountDownLatch(1);
71	>	try {
72	>	Runnable task = new CheckedRunnable() {
73	>	public void realRun() {
74	>	done.countDown();
75	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
76	>	}};
77	>	Future f = p.schedule(task, timeoutMillis(), MILLISECONDS);
78	>	await(done);
79	>	assertNull(f.get(LONG_DELAY_MS, MILLISECONDS));
80	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
81	>	} finally {
82	>	joinPool(p);
83	>	}
84	>	}
85	>
86	>	/**
87	>	* scheduleAtFixedRate executes runnable after given initial delay
88	>	*/
89	>	public void testSchedule4() throws Exception {
90	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
91	>	final long startTime = System.nanoTime();
92	>	final CountDownLatch done = new CountDownLatch(1);
93	>	try {
94	>	Runnable task = new CheckedRunnable() {
95	>	public void realRun() {
96	>	done.countDown();
97	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
98	>	}};
99	>	ScheduledFuture f =
100	>	p.scheduleAtFixedRate(task, timeoutMillis(),
101	>	LONG_DELAY_MS, MILLISECONDS);
102	>	await(done);
103	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
104	>	f.cancel(true);
105	>	} finally {
106	>	joinPool(p);
107	>	}
108	>	}
109	>
110	>	/**
111	>	* scheduleWithFixedDelay executes runnable after given initial delay
112	>	*/
113	>	public void testSchedule5() throws Exception {
114	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
115	>	final long startTime = System.nanoTime();
116	>	final CountDownLatch done = new CountDownLatch(1);
117	>	try {
118	>	Runnable task = new CheckedRunnable() {
119	>	public void realRun() {
120	>	done.countDown();
121	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
122	>	}};
123	>	ScheduledFuture f =
124	>	p.scheduleWithFixedDelay(task, timeoutMillis(),
125	>	LONG_DELAY_MS, MILLISECONDS);
126	>	await(done);
127	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
128	>	f.cancel(true);
129	>	} finally {
130	>	joinPool(p);
131	>	}
132	>	}
133	>
134	>	static class RunnableCounter implements Runnable {
135	>	AtomicInteger count = new AtomicInteger(0);
136	>	public void run() { count.getAndIncrement(); }
137	>	}
138	>
139	>	/**
140	>	* scheduleAtFixedRate executes series of tasks at given rate
141	>	*/
142	>	public void testFixedRateSequence() throws InterruptedException {
143	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
144	>	try {
145	>	for (int delay = 1; delay <= LONG_DELAY_MS; delay *= 3) {
146	>	long startTime = System.nanoTime();
147	>	int cycles = 10;
148	>	final CountDownLatch done = new CountDownLatch(cycles);
149	>	CheckedRunnable task = new CheckedRunnable() {
150	>	public void realRun() { done.countDown(); }};
151	>
152	>	ScheduledFuture h =
153	>	p.scheduleAtFixedRate(task, 0, delay, MILLISECONDS);
154	>	done.await();
155	>	h.cancel(true);
156	>	double normalizedTime =
157	>	(double) millisElapsedSince(startTime) / delay;
158	>	if (normalizedTime >= cycles - 1 &&
159	>	normalizedTime <= cycles)
160	>	return;
161	>	}
162	>	throw new AssertionError("unexpected execution rate");
163	>	} finally {
164	>	joinPool(p);
165	>	}
166		}
167
168		/**
169	<	*  Test to verify scheduleAtFixedRate(Runnable, long, long, TimeUnit) throws
170	<	*  RejectedExecutionException.
171	<	*  This occurs on an attempt to schedule a task on a shutdown executor
172	<	*/
173	<	public void testScheduleAtFixedRate1_RejectedExecutionException(){
174	<	try{
175	<	ScheduledExecutor se = new ScheduledExecutor(1);
169	>	* scheduleWithFixedDelay executes series of tasks with given period
170	>	*/
171	>	public void testFixedDelaySequence() throws InterruptedException {
172	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
173	>	try {
174	>	for (int delay = 1; delay <= LONG_DELAY_MS; delay *= 3) {
175	>	long startTime = System.nanoTime();
176	>	int cycles = 10;
177	>	final CountDownLatch done = new CountDownLatch(cycles);
178	>	CheckedRunnable task = new CheckedRunnable() {
179	>	public void realRun() { done.countDown(); }};
180	>
181	>	ScheduledFuture h =
182	>	p.scheduleWithFixedDelay(task, 0, delay, MILLISECONDS);
183	>	done.await();
184	>	h.cancel(true);
185	>	double normalizedTime =
186	>	(double) millisElapsedSince(startTime) / delay;
187	>	if (normalizedTime >= cycles - 1 &&
188	>	normalizedTime <= cycles)
189	>	return;
190	>	}
191	>	throw new AssertionError("unexpected execution rate");
192	>	} finally {
193	>	joinPool(p);
194	>	}
195	>	}
196	>
197	>	/**
198	>	* execute(null) throws NPE
199	>	*/
200	>	public void testExecuteNull() throws InterruptedException {
201	>	ScheduledThreadPoolExecutor se = null;
202	>	try {
203	>	se = new ScheduledThreadPoolExecutor(1);
204	>	se.execute(null);
205	>	shouldThrow();
206	>	} catch (NullPointerException success) {}
207	>
208	>	joinPool(se);
209	>	}
210	>
211	>	/**
212	>	* schedule(null) throws NPE
213	>	*/
214	>	public void testScheduleNull() throws InterruptedException {
215	>	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
216	>	try {
217	>	TrackedCallable callable = null;
218	>	Future f = se.schedule(callable, SHORT_DELAY_MS, MILLISECONDS);
219	>	shouldThrow();
220	>	} catch (NullPointerException success) {}
221	>	joinPool(se);
222	>	}
223	>
224	>	/**
225	>	* execute throws RejectedExecutionException if shutdown
226	>	*/
227	>	public void testSchedule1_RejectedExecutionException() throws InterruptedException {
228	>	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
229	>	try {
230		se.shutdown();
231	<	se.scheduleAtFixedRate(new Runnable(){
232	<	public void run(){}
233	<	}, 100, 100, TimeUnit.SECONDS);
234	<	fail("should throw");
235	<	}catch(RejectedExecutionException e){}
236	<	}
237	<
238	<	/**
239	<	*  Test to verify scheduleAtFixedRate(Runnable, long, long, TimeUnit) throws
240	<	*  RejectedExecutionException.
241	<	*  This occurs on an attempt to schedule a task on a shutdown executor
242	<	*/
243	<	public void testScheduleAtFixedRate2_RejectedExecutionException(){
244	<	try{
245	<	ScheduledExecutor se = new ScheduledExecutor(1);
231	>	se.schedule(new NoOpRunnable(),
232	>	MEDIUM_DELAY_MS, MILLISECONDS);
233	>	shouldThrow();
234	>	} catch (RejectedExecutionException success) {
235	>	} catch (SecurityException ok) {
236	>	}
237	>
238	>	joinPool(se);
239	>	}
240	>
241	>	/**
242	>	* schedule throws RejectedExecutionException if shutdown
243	>	*/
244	>	public void testSchedule2_RejectedExecutionException() throws InterruptedException {
245	>	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
246	>	try {
247		se.shutdown();
248	<	se.scheduleAtFixedRate(new Runnable(){
249	<	public void run(){}
250	<	},  1, 100, TimeUnit.SECONDS);
251	<	fail("should throw");
252	<	}catch(RejectedExecutionException e){}
248	>	se.schedule(new NoOpCallable(),
249	>	MEDIUM_DELAY_MS, MILLISECONDS);
250	>	shouldThrow();
251	>	} catch (RejectedExecutionException success) {
252	>	} catch (SecurityException ok) {
253	>	}
254	>	joinPool(se);
255		}
256
257		/**
258	<	*  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
258	>	* schedule callable throws RejectedExecutionException if shutdown
259		*/
260	<	public void testScheduleWithFixedDelay1_RejectedExecutionException(){
261	<	try{
262	<	ScheduledExecutor se = new ScheduledExecutor(1);
260	>	public void testSchedule3_RejectedExecutionException() throws InterruptedException {
261	>	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
262	>	try {
263		se.shutdown();
264	<	se.scheduleWithFixedDelay(new Runnable(){
265	<	public void run(){}
266	<	}, 100, 100, TimeUnit.SECONDS);
267	<	fail("should throw");
268	<	}catch(RejectedExecutionException e){}
264	>	se.schedule(new NoOpCallable(),
265	>	MEDIUM_DELAY_MS, MILLISECONDS);
266	>	shouldThrow();
267	>	} catch (RejectedExecutionException success) {
268	>	} catch (SecurityException ok) {
269	>	}
270	>	joinPool(se);
271		}
272
273		/**
274	<	*  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
274	>	* scheduleAtFixedRate throws RejectedExecutionException if shutdown
275		*/
276	<	public void testScheduleWithFixedDelay2_RejectedExecutionException(){
277	<	try{
278	<	ScheduledExecutor se = new ScheduledExecutor(1);
276	>	public void testScheduleAtFixedRate1_RejectedExecutionException() throws InterruptedException {
277	>	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
278	>	try {
279		se.shutdown();
280	<	se.scheduleWithFixedDelay(new Runnable(){
281	<	public void run(){}
282	<	},  1, 100, TimeUnit.SECONDS);
283	<	fail("should throw");
284	<	}catch(RejectedExecutionException e){}
280	>	se.scheduleAtFixedRate(new NoOpRunnable(),
281	>	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS);
282	>	shouldThrow();
283	>	} catch (RejectedExecutionException success) {
284	>	} catch (SecurityException ok) {
285	>	}
286	>	joinPool(se);
287		}
288
289		/**
290	<	*  Test to verify execute throws RejectedExecutionException
250	<	*  This occurs on an attempt to schedule a task on a shutdown executor
290	>	* scheduleWithFixedDelay throws RejectedExecutionException if shutdown
291		*/
292	<	public void testExecute_RejectedExecutionException(){
293	<	try{
294	<	ScheduledExecutor se = new ScheduledExecutor(1);
292	>	public void testScheduleWithFixedDelay1_RejectedExecutionException() throws InterruptedException {
293	>	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
294	>	try {
295		se.shutdown();
296	<	se.execute(new Runnable(){
297	<	public void run(){}
298	<	});
299	<	fail("should throw");
300	<	}catch(RejectedExecutionException e){}
296	>	se.scheduleWithFixedDelay(new NoOpRunnable(),
297	>	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS);
298	>	shouldThrow();
299	>	} catch (RejectedExecutionException success) {
300	>	} catch (SecurityException ok) {
301	>	}
302	>	joinPool(se);
303	>	}
304	>
305	>	/**
306	>	* getActiveCount increases but doesn't overestimate, when a
307	>	* thread becomes active
308	>	*/
309	>	public void testGetActiveCount() throws InterruptedException {
310	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(2);
311	>	final CountDownLatch threadStarted = new CountDownLatch(1);
312	>	final CountDownLatch done = new CountDownLatch(1);
313	>	try {
314	>	assertEquals(0, p.getActiveCount());
315	>	p.execute(new CheckedRunnable() {
316	>	public void realRun() throws InterruptedException {
317	>	threadStarted.countDown();
318	>	assertEquals(1, p.getActiveCount());
319	>	done.await();
320	>	}});
321	>	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
322	>	assertEquals(1, p.getActiveCount());
323	>	} finally {
324	>	done.countDown();
325	>	joinPool(p);
326	>	}
327	>	}
328	>
329	>	/**
330	>	* getCompletedTaskCount increases, but doesn't overestimate,
331	>	* when tasks complete
332	>	*/
333	>	public void testGetCompletedTaskCount() throws InterruptedException {
334	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(2);
335	>	final CountDownLatch threadStarted = new CountDownLatch(1);
336	>	final CountDownLatch threadProceed = new CountDownLatch(1);
337	>	final CountDownLatch threadDone = new CountDownLatch(1);
338	>	try {
339	>	assertEquals(0, p.getCompletedTaskCount());
340	>	p.execute(new CheckedRunnable() {
341	>	public void realRun() throws InterruptedException {
342	>	threadStarted.countDown();
343	>	assertEquals(0, p.getCompletedTaskCount());
344	>	threadProceed.await();
345	>	threadDone.countDown();
346	>	}});
347	>	await(threadStarted);
348	>	assertEquals(0, p.getCompletedTaskCount());
349	>	threadProceed.countDown();
350	>	threadDone.await();
351	>	long startTime = System.nanoTime();
352	>	while (p.getCompletedTaskCount() != 1) {
353	>	if (millisElapsedSince(startTime) > LONG_DELAY_MS)
354	>	fail("timed out");
355	>	Thread.yield();
356	>	}
357	>	} finally {
358	>	joinPool(p);
359	>	}
360	>	}
361	>
362	>	/**
363	>	* getCorePoolSize returns size given in constructor if not otherwise set
364	>	*/
365	>	public void testGetCorePoolSize() throws InterruptedException {
366	>	ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
367	>	assertEquals(1, p.getCorePoolSize());
368	>	joinPool(p);
369	>	}
370	>
371	>	/**
372	>	* getLargestPoolSize increases, but doesn't overestimate, when
373	>	* multiple threads active
374	>	*/
375	>	public void testGetLargestPoolSize() throws InterruptedException {
376	>	final int THREADS = 3;
377	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(THREADS);
378	>	final CountDownLatch threadsStarted = new CountDownLatch(THREADS);
379	>	final CountDownLatch done = new CountDownLatch(1);
380	>	try {
381	>	assertEquals(0, p.getLargestPoolSize());
382	>	for (int i = 0; i < THREADS; i++)
383	>	p.execute(new CheckedRunnable() {
384	>	public void realRun() throws InterruptedException {
385	>	threadsStarted.countDown();
386	>	done.await();
387	>	assertEquals(THREADS, p.getLargestPoolSize());
388	>	}});
389	>	assertTrue(threadsStarted.await(SMALL_DELAY_MS, MILLISECONDS));
390	>	assertEquals(THREADS, p.getLargestPoolSize());
391	>	} finally {
392	>	done.countDown();
393	>	joinPool(p);
394	>	assertEquals(THREADS, p.getLargestPoolSize());
395	>	}
396	>	}
397	>
398	>	/**
399	>	* getPoolSize increases, but doesn't overestimate, when threads
400	>	* become active
401	>	*/
402	>	public void testGetPoolSize() throws InterruptedException {
403	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
404	>	final CountDownLatch threadStarted = new CountDownLatch(1);
405	>	final CountDownLatch done = new CountDownLatch(1);
406	>	try {
407	>	assertEquals(0, p.getPoolSize());
408	>	p.execute(new CheckedRunnable() {
409	>	public void realRun() throws InterruptedException {
410	>	threadStarted.countDown();
411	>	assertEquals(1, p.getPoolSize());
412	>	done.await();
413	>	}});
414	>	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
415	>	assertEquals(1, p.getPoolSize());
416	>	} finally {
417	>	done.countDown();
418	>	joinPool(p);
419	>	}
420	>	}
421	>
422	>	/**
423	>	* getTaskCount increases, but doesn't overestimate, when tasks
424	>	* submitted
425	>	*/
426	>	public void testGetTaskCount() throws InterruptedException {
427	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
428	>	final CountDownLatch threadStarted = new CountDownLatch(1);
429	>	final CountDownLatch done = new CountDownLatch(1);
430	>	final int TASKS = 5;
431	>	try {
432	>	assertEquals(0, p.getTaskCount());
433	>	for (int i = 0; i < TASKS; i++)
434	>	p.execute(new CheckedRunnable() {
435	>	public void realRun() throws InterruptedException {
436	>	threadStarted.countDown();
437	>	done.await();
438	>	}});
439	>	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
440	>	assertEquals(TASKS, p.getTaskCount());
441	>	} finally {
442	>	done.countDown();
443	>	joinPool(p);
444	>	}
445	>	}
446	>
447	>	/**
448	>	* getThreadFactory returns factory in constructor if not set
449	>	*/
450	>	public void testGetThreadFactory() throws InterruptedException {
451	>	ThreadFactory tf = new SimpleThreadFactory();
452	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1, tf);
453	>	assertSame(tf, p.getThreadFactory());
454	>	joinPool(p);
455	>	}
456	>
457	>	/**
458	>	* setThreadFactory sets the thread factory returned by getThreadFactory
459	>	*/
460	>	public void testSetThreadFactory() throws InterruptedException {
461	>	ThreadFactory tf = new SimpleThreadFactory();
462	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
463	>	p.setThreadFactory(tf);
464	>	assertSame(tf, p.getThreadFactory());
465	>	joinPool(p);
466	>	}
467	>
468	>	/**
469	>	* setThreadFactory(null) throws NPE
470	>	*/
471	>	public void testSetThreadFactoryNull() throws InterruptedException {
472	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
473	>	try {
474	>	p.setThreadFactory(null);
475	>	shouldThrow();
476	>	} catch (NullPointerException success) {
477	>	} finally {
478	>	joinPool(p);
479	>	}
480	>	}
481	>
482	>	/**
483	>	* isShutdown is false before shutdown, true after
484	>	*/
485	>	public void testIsShutdown() {
486	>
487	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
488	>	try {
489	>	assertFalse(p.isShutdown());
490	>	}
491	>	finally {
492	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
493	>	}
494	>	assertTrue(p.isShutdown());
495	>	}
496	>
497	>	/**
498	>	* isTerminated is false before termination, true after
499	>	*/
500	>	public void testIsTerminated() throws InterruptedException {
501	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
502	>	final CountDownLatch threadStarted = new CountDownLatch(1);
503	>	final CountDownLatch done = new CountDownLatch(1);
504	>	assertFalse(p.isTerminated());
505	>	try {
506	>	p.execute(new CheckedRunnable() {
507	>	public void realRun() throws InterruptedException {
508	>	assertFalse(p.isTerminated());
509	>	threadStarted.countDown();
510	>	done.await();
511	>	}});
512	>	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
513	>	assertFalse(p.isTerminating());
514	>	done.countDown();
515	>	} finally {
516	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
517	>	}
518	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
519	>	assertTrue(p.isTerminated());
520	>	}
521	>
522	>	/**
523	>	* isTerminating is not true when running or when terminated
524	>	*/
525	>	public void testIsTerminating() throws InterruptedException {
526	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
527	>	final CountDownLatch threadStarted = new CountDownLatch(1);
528	>	final CountDownLatch done = new CountDownLatch(1);
529	>	try {
530	>	assertFalse(p.isTerminating());
531	>	p.execute(new CheckedRunnable() {
532	>	public void realRun() throws InterruptedException {
533	>	assertFalse(p.isTerminating());
534	>	threadStarted.countDown();
535	>	done.await();
536	>	}});
537	>	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
538	>	assertFalse(p.isTerminating());
539	>	done.countDown();
540	>	} finally {
541	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
542	>	}
543	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
544	>	assertTrue(p.isTerminated());
545	>	assertFalse(p.isTerminating());
546	>	}
547	>
548	>	/**
549	>	* getQueue returns the work queue, which contains queued tasks
550	>	*/
551	>	public void testGetQueue() throws InterruptedException {
552	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
553	>	final CountDownLatch threadStarted = new CountDownLatch(1);
554	>	final CountDownLatch done = new CountDownLatch(1);
555	>	try {
556	>	ScheduledFuture[] tasks = new ScheduledFuture[5];
557	>	for (int i = 0; i < tasks.length; i++) {
558	>	Runnable r = new CheckedRunnable() {
559	>	public void realRun() throws InterruptedException {
560	>	threadStarted.countDown();
561	>	done.await();
562	>	}};
563	>	tasks[i] = p.schedule(r, 1, MILLISECONDS);
564	>	}
565	>	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
566	>	BlockingQueue<Runnable> q = p.getQueue();
567	>	assertTrue(q.contains(tasks[tasks.length - 1]));
568	>	assertFalse(q.contains(tasks[0]));
569	>	} finally {
570	>	done.countDown();
571	>	joinPool(p);
572	>	}
573	>	}
574	>
575	>	/**
576	>	* remove(task) removes queued task, and fails to remove active task
577	>	*/
578	>	public void testRemove() throws InterruptedException {
579	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
580	>	ScheduledFuture[] tasks = new ScheduledFuture[5];
581	>	final CountDownLatch threadStarted = new CountDownLatch(1);
582	>	final CountDownLatch done = new CountDownLatch(1);
583	>	try {
584	>	for (int i = 0; i < tasks.length; i++) {
585	>	Runnable r = new CheckedRunnable() {
586	>	public void realRun() throws InterruptedException {
587	>	threadStarted.countDown();
588	>	done.await();
589	>	}};
590	>	tasks[i] = p.schedule(r, 1, MILLISECONDS);
591	>	}
592	>	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
593	>	BlockingQueue<Runnable> q = p.getQueue();
594	>	assertFalse(p.remove((Runnable)tasks[0]));
595	>	assertTrue(q.contains((Runnable)tasks[4]));
596	>	assertTrue(q.contains((Runnable)tasks[3]));
597	>	assertTrue(p.remove((Runnable)tasks[4]));
598	>	assertFalse(p.remove((Runnable)tasks[4]));
599	>	assertFalse(q.contains((Runnable)tasks[4]));
600	>	assertTrue(q.contains((Runnable)tasks[3]));
601	>	assertTrue(p.remove((Runnable)tasks[3]));
602	>	assertFalse(q.contains((Runnable)tasks[3]));
603	>	} finally {
604	>	done.countDown();
605	>	joinPool(p);
606	>	}
607	>	}
608	>
609	>	/**
610	>	* purge eventually removes cancelled tasks from the queue
611	>	*/
612	>	public void testPurge() throws InterruptedException {
613	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
614	>	ScheduledFuture[] tasks = new ScheduledFuture[5];
615	>	for (int i = 0; i < tasks.length; i++)
616	>	tasks[i] = p.schedule(new SmallPossiblyInterruptedRunnable(),
617	>	LONG_DELAY_MS, MILLISECONDS);
618	>	try {
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) < MEDIUM_DELAY_MS);
631	>	fail("Purge failed to remove cancelled tasks");
632	>	} finally {
633	>	for (ScheduledFuture task : tasks)
634	>	task.cancel(true);
635	>	joinPool(p);
636	>	}
637	>	}
638	>
639	>	/**
640	>	* shutdownNow returns a list containing tasks that were not run
641	>	*/
642	>	public void testShutdownNow() {
643	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
644	>	for (int i = 0; i < 5; i++)
645	>	p.schedule(new SmallPossiblyInterruptedRunnable(),
646	>	LONG_DELAY_MS, MILLISECONDS);
647	>	try {
648	>	List<Runnable> l = p.shutdownNow();
649	>	assertTrue(p.isShutdown());
650	>	assertEquals(5, l.size());
651	>	} catch (SecurityException ok) {
652	>	// Allowed in case test doesn't have privs
653	>	} finally {
654	>	joinPool(p);
655	>	}
656	>	}
657	>
658	>	/**
659	>	* In default setting, shutdown cancels periodic but not delayed
660	>	* tasks at shutdown
661	>	*/
662	>	public void testShutdown1() throws InterruptedException {
663	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
664	>	assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
665	>	assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
666	>
667	>	ScheduledFuture[] tasks = new ScheduledFuture[5];
668	>	for (int i = 0; i < tasks.length; i++)
669	>	tasks[i] = p.schedule(new NoOpRunnable(),
670	>	SHORT_DELAY_MS, MILLISECONDS);
671	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
672	>	BlockingQueue<Runnable> q = p.getQueue();
673	>	for (ScheduledFuture task : tasks) {
674	>	assertFalse(task.isDone());
675	>	assertFalse(task.isCancelled());
676	>	assertTrue(q.contains(task));
677	>	}
678	>	assertTrue(p.isShutdown());
679	>	assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS));
680	>	assertTrue(p.isTerminated());
681	>	for (ScheduledFuture task : tasks) {
682	>	assertTrue(task.isDone());
683	>	assertFalse(task.isCancelled());
684	>	}
685	>	}
686	>
687	>	/**
688	>	* If setExecuteExistingDelayedTasksAfterShutdownPolicy is false,
689	>	* delayed tasks are cancelled at shutdown
690	>	*/
691	>	public void testShutdown2() throws InterruptedException {
692	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
693	>	p.setExecuteExistingDelayedTasksAfterShutdownPolicy(false);
694	>	assertFalse(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
695	>	assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
696	>	ScheduledFuture[] tasks = new ScheduledFuture[5];
697	>	for (int i = 0; i < tasks.length; i++)
698	>	tasks[i] = p.schedule(new NoOpRunnable(),
699	>	SHORT_DELAY_MS, MILLISECONDS);
700	>	BlockingQueue q = p.getQueue();
701	>	assertEquals(tasks.length, q.size());
702	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
703	>	assertTrue(p.isShutdown());
704	>	assertTrue(q.isEmpty());
705	>	assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS));
706	>	assertTrue(p.isTerminated());
707	>	for (ScheduledFuture task : tasks) {
708	>	assertTrue(task.isDone());
709	>	assertTrue(task.isCancelled());
710	>	}
711	>	}
712	>
713	>	/**
714	>	* If setContinueExistingPeriodicTasksAfterShutdownPolicy is set false,
715	>	* periodic tasks are cancelled at shutdown
716	>	*/
717	>	public void testShutdown3() throws InterruptedException {
718	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
719	>	assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
720	>	assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
721	>	p.setContinueExistingPeriodicTasksAfterShutdownPolicy(false);
722	>	assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
723	>	assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
724	>	long initialDelay = LONG_DELAY_MS;
725	>	ScheduledFuture task =
726	>	p.scheduleAtFixedRate(new NoOpRunnable(), initialDelay,
727	>	5, MILLISECONDS);
728	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
729	>	assertTrue(p.isShutdown());
730	>	assertTrue(p.getQueue().isEmpty());
731	>	assertTrue(task.isDone());
732	>	assertTrue(task.isCancelled());
733	>	joinPool(p);
734	>	}
735	>
736	>	/**
737	>	* if setContinueExistingPeriodicTasksAfterShutdownPolicy is true,
738	>	* periodic tasks are not cancelled at shutdown
739	>	*/
740	>	public void testShutdown4() throws InterruptedException {
741	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
742	>	final CountDownLatch counter = new CountDownLatch(2);
743	>	try {
744	>	p.setContinueExistingPeriodicTasksAfterShutdownPolicy(true);
745	>	assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
746	>	assertTrue(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
747	>	final Runnable r = new CheckedRunnable() {
748	>	public void realRun() {
749	>	counter.countDown();
750	>	}};
751	>	ScheduledFuture task =
752	>	p.scheduleAtFixedRate(r, 1, 1, MILLISECONDS);
753	>	assertFalse(task.isDone());
754	>	assertFalse(task.isCancelled());
755	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
756	>	assertFalse(task.isCancelled());
757	>	assertFalse(p.isTerminated());
758	>	assertTrue(p.isShutdown());
759	>	assertTrue(counter.await(SMALL_DELAY_MS, MILLISECONDS));
760	>	assertFalse(task.isCancelled());
761	>	assertTrue(task.cancel(false));
762	>	assertTrue(task.isDone());
763	>	assertTrue(task.isCancelled());
764	>	assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS));
765	>	assertTrue(p.isTerminated());
766	>	}
767	>	finally {
768	>	joinPool(p);
769	>	}
770	>	}
771	>
772	>	/**
773	>	* completed submit of callable returns result
774	>	*/
775	>	public void testSubmitCallable() throws Exception {
776	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
777	>	try {
778	>	Future<String> future = e.submit(new StringTask());
779	>	String result = future.get();
780	>	assertSame(TEST_STRING, result);
781	>	} finally {
782	>	joinPool(e);
783	>	}
784	>	}
785	>
786	>	/**
787	>	* completed submit of runnable returns successfully
788	>	*/
789	>	public void testSubmitRunnable() throws Exception {
790	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
791	>	try {
792	>	Future<?> future = e.submit(new NoOpRunnable());
793	>	future.get();
794	>	assertTrue(future.isDone());
795	>	} finally {
796	>	joinPool(e);
797	>	}
798	>	}
799	>
800	>	/**
801	>	* completed submit of (runnable, result) returns result
802	>	*/
803	>	public void testSubmitRunnable2() throws Exception {
804	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
805	>	try {
806	>	Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING);
807	>	String result = future.get();
808	>	assertSame(TEST_STRING, result);
809	>	} finally {
810	>	joinPool(e);
811	>	}
812	>	}
813	>
814	>	/**
815	>	* invokeAny(null) throws NPE
816	>	*/
817	>	public void testInvokeAny1() throws Exception {
818	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
819	>	try {
820	>	e.invokeAny(null);
821	>	shouldThrow();
822	>	} catch (NullPointerException success) {
823	>	} finally {
824	>	joinPool(e);
825	>	}
826	>	}
827	>
828	>	/**
829	>	* invokeAny(empty collection) throws IAE
830	>	*/
831	>	public void testInvokeAny2() throws Exception {
832	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
833	>	try {
834	>	e.invokeAny(new ArrayList<Callable<String>>());
835	>	shouldThrow();
836	>	} catch (IllegalArgumentException success) {
837	>	} finally {
838	>	joinPool(e);
839	>	}
840	>	}
841	>
842	>	/**
843	>	* invokeAny(c) throws NPE if c has null elements
844	>	*/
845	>	public void testInvokeAny3() throws Exception {
846	>	CountDownLatch latch = new CountDownLatch(1);
847	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
848	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
849	>	l.add(latchAwaitingStringTask(latch));
850	>	l.add(null);
851	>	try {
852	>	e.invokeAny(l);
853	>	shouldThrow();
854	>	} catch (NullPointerException success) {
855	>	} finally {
856	>	latch.countDown();
857	>	joinPool(e);
858	>	}
859	>	}
860	>
861	>	/**
862	>	* invokeAny(c) throws ExecutionException if no task completes
863	>	*/
864	>	public void testInvokeAny4() throws Exception {
865	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
866	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
867	>	l.add(new NPETask());
868	>	try {
869	>	e.invokeAny(l);
870	>	shouldThrow();
871	>	} catch (ExecutionException success) {
872	>	assertTrue(success.getCause() instanceof NullPointerException);
873	>	} finally {
874	>	joinPool(e);
875	>	}
876	>	}
877	>
878	>	/**
879	>	* invokeAny(c) returns result of some task
880	>	*/
881	>	public void testInvokeAny5() throws Exception {
882	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
883	>	try {
884	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
885	>	l.add(new StringTask());
886	>	l.add(new StringTask());
887	>	String result = e.invokeAny(l);
888	>	assertSame(TEST_STRING, result);
889	>	} finally {
890	>	joinPool(e);
891	>	}
892	>	}
893	>
894	>	/**
895	>	* invokeAll(null) throws NPE
896	>	*/
897	>	public void testInvokeAll1() throws Exception {
898	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
899	>	try {
900	>	e.invokeAll(null);
901	>	shouldThrow();
902	>	} catch (NullPointerException success) {
903	>	} finally {
904	>	joinPool(e);
905	>	}
906	>	}
907	>
908	>	/**
909	>	* invokeAll(empty collection) returns empty collection
910	>	*/
911	>	public void testInvokeAll2() throws Exception {
912	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
913	>	try {
914	>	List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>());
915	>	assertTrue(r.isEmpty());
916	>	} finally {
917	>	joinPool(e);
918	>	}
919	>	}
920	>
921	>	/**
922	>	* invokeAll(c) throws NPE if c has null elements
923	>	*/
924	>	public void testInvokeAll3() throws Exception {
925	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
926	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
927	>	l.add(new StringTask());
928	>	l.add(null);
929	>	try {
930	>	e.invokeAll(l);
931	>	shouldThrow();
932	>	} catch (NullPointerException success) {
933	>	} finally {
934	>	joinPool(e);
935	>	}
936	>	}
937	>
938	>	/**
939	>	* get of invokeAll(c) throws exception on failed task
940	>	*/
941	>	public void testInvokeAll4() throws Exception {
942	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
943	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
944	>	l.add(new NPETask());
945	>	List<Future<String>> futures = e.invokeAll(l);
946	>	assertEquals(1, futures.size());
947	>	try {
948	>	futures.get(0).get();
949	>	shouldThrow();
950	>	} catch (ExecutionException success) {
951	>	assertTrue(success.getCause() instanceof NullPointerException);
952	>	} finally {
953	>	joinPool(e);
954	>	}
955	>	}
956	>
957	>	/**
958	>	* invokeAll(c) returns results of all completed tasks
959	>	*/
960	>	public void testInvokeAll5() throws Exception {
961	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
962	>	try {
963	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
964	>	l.add(new StringTask());
965	>	l.add(new StringTask());
966	>	List<Future<String>> futures = e.invokeAll(l);
967	>	assertEquals(2, futures.size());
968	>	for (Future<String> future : futures)
969	>	assertSame(TEST_STRING, future.get());
970	>	} finally {
971	>	joinPool(e);
972	>	}
973	>	}
974	>
975	>	/**
976	>	* timed invokeAny(null) throws NPE
977	>	*/
978	>	public void testTimedInvokeAny1() throws Exception {
979	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
980	>	try {
981	>	e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS);
982	>	shouldThrow();
983	>	} catch (NullPointerException success) {
984	>	} finally {
985	>	joinPool(e);
986	>	}
987	>	}
988	>
989	>	/**
990	>	* timed invokeAny(,,null) throws NPE
991	>	*/
992	>	public void testTimedInvokeAnyNullTimeUnit() throws Exception {
993	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
994	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
995	>	l.add(new StringTask());
996	>	try {
997	>	e.invokeAny(l, MEDIUM_DELAY_MS, null);
998	>	shouldThrow();
999	>	} catch (NullPointerException success) {
1000	>	} finally {
1001	>	joinPool(e);
1002	>	}
1003	>	}
1004	>
1005	>	/**
1006	>	* timed invokeAny(empty collection) throws IAE
1007	>	*/
1008	>	public void testTimedInvokeAny2() throws Exception {
1009	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1010	>	try {
1011	>	e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
1012	>	shouldThrow();
1013	>	} catch (IllegalArgumentException success) {
1014	>	} finally {
1015	>	joinPool(e);
1016	>	}
1017	>	}
1018	>
1019	>	/**
1020	>	* timed invokeAny(c) throws NPE if c has null elements
1021	>	*/
1022	>	public void testTimedInvokeAny3() throws Exception {
1023	>	CountDownLatch latch = new CountDownLatch(1);
1024	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1025	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1026	>	l.add(latchAwaitingStringTask(latch));
1027	>	l.add(null);
1028	>	try {
1029	>	e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1030	>	shouldThrow();
1031	>	} catch (NullPointerException success) {
1032	>	} finally {
1033	>	latch.countDown();
1034	>	joinPool(e);
1035	>	}
1036	>	}
1037	>
1038	>	/**
1039	>	* timed invokeAny(c) throws ExecutionException if no task completes
1040	>	*/
1041	>	public void testTimedInvokeAny4() throws Exception {
1042	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1043	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1044	>	l.add(new NPETask());
1045	>	try {
1046	>	e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1047	>	shouldThrow();
1048	>	} catch (ExecutionException success) {
1049	>	assertTrue(success.getCause() instanceof NullPointerException);
1050	>	} finally {
1051	>	joinPool(e);
1052	>	}
1053	>	}
1054	>
1055	>	/**
1056	>	* timed invokeAny(c) returns result of some task
1057	>	*/
1058	>	public void testTimedInvokeAny5() throws Exception {
1059	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1060	>	try {
1061	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1062	>	l.add(new StringTask());
1063	>	l.add(new StringTask());
1064	>	String result = e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1065	>	assertSame(TEST_STRING, result);
1066	>	} finally {
1067	>	joinPool(e);
1068	>	}
1069	>	}
1070	>
1071	>	/**
1072	>	* timed invokeAll(null) throws NPE
1073	>	*/
1074	>	public void testTimedInvokeAll1() throws Exception {
1075	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1076	>	try {
1077	>	e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS);
1078	>	shouldThrow();
1079	>	} catch (NullPointerException success) {
1080	>	} finally {
1081	>	joinPool(e);
1082	>	}
1083	>	}
1084	>
1085	>	/**
1086	>	* timed invokeAll(,,null) throws NPE
1087	>	*/
1088	>	public void testTimedInvokeAllNullTimeUnit() throws Exception {
1089	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1090	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1091	>	l.add(new StringTask());
1092	>	try {
1093	>	e.invokeAll(l, MEDIUM_DELAY_MS, null);
1094	>	shouldThrow();
1095	>	} catch (NullPointerException success) {
1096	>	} finally {
1097	>	joinPool(e);
1098	>	}
1099	>	}
1100	>
1101	>	/**
1102	>	* timed invokeAll(empty collection) returns empty collection
1103	>	*/
1104	>	public void testTimedInvokeAll2() throws Exception {
1105	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1106	>	try {
1107	>	List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
1108	>	assertTrue(r.isEmpty());
1109	>	} finally {
1110	>	joinPool(e);
1111	>	}
1112	>	}
1113	>
1114	>	/**
1115	>	* timed invokeAll(c) throws NPE if c has null elements
1116	>	*/
1117	>	public void testTimedInvokeAll3() throws Exception {
1118	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1119	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1120	>	l.add(new StringTask());
1121	>	l.add(null);
1122	>	try {
1123	>	e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1124	>	shouldThrow();
1125	>	} catch (NullPointerException success) {
1126	>	} finally {
1127	>	joinPool(e);
1128	>	}
1129	>	}
1130	>
1131	>	/**
1132	>	* get of element of invokeAll(c) throws exception on failed task
1133	>	*/
1134	>	public void testTimedInvokeAll4() throws Exception {
1135	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1136	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1137	>	l.add(new NPETask());
1138	>	List<Future<String>> futures =
1139	>	e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1140	>	assertEquals(1, futures.size());
1141	>	try {
1142	>	futures.get(0).get();
1143	>	shouldThrow();
1144	>	} catch (ExecutionException success) {
1145	>	assertTrue(success.getCause() instanceof NullPointerException);
1146	>	} finally {
1147	>	joinPool(e);
1148	>	}
1149	>	}
1150	>
1151	>	/**
1152	>	* timed invokeAll(c) returns results of all completed tasks
1153	>	*/
1154	>	public void testTimedInvokeAll5() throws Exception {
1155	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1156	>	try {
1157	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1158	>	l.add(new StringTask());
1159	>	l.add(new StringTask());
1160	>	List<Future<String>> futures =
1161	>	e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1162	>	assertEquals(2, futures.size());
1163	>	for (Future<String> future : futures)
1164	>	assertSame(TEST_STRING, future.get());
1165	>	} finally {
1166	>	joinPool(e);
1167	>	}
1168	>	}
1169	>
1170	>	/**
1171	>	* timed invokeAll(c) cancels tasks not completed by timeout
1172	>	*/
1173	>	public void testTimedInvokeAll6() throws Exception {
1174	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1175	>	try {
1176	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1177	>	l.add(new StringTask());
1178	>	l.add(Executors.callable(new MediumPossiblyInterruptedRunnable(), TEST_STRING));
1179	>	l.add(new StringTask());
1180	>	List<Future<String>> futures =
1181	>	e.invokeAll(l, SHORT_DELAY_MS, MILLISECONDS);
1182	>	assertEquals(l.size(), futures.size());
1183	>	for (Future future : futures)
1184	>	assertTrue(future.isDone());
1185	>	assertFalse(futures.get(0).isCancelled());
1186	>	assertTrue(futures.get(1).isCancelled());
1187	>	} finally {
1188	>	joinPool(e);
1189	>	}
1190		}
1191
1192		}

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