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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 1.39 by dl, Fri May 6 11:22:07 2011 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.*;
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	>	delay(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	>	delay(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	>	delay(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	+	assertFalse(p.isTerminated());
489	+	threadStarted.countDown();
490	+	done.await();
491	+	}});
492	+	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
493	+	assertFalse(p.isTerminating());
494	+	done.countDown();
495	+	} finally {
496	+	try { p.shutdown(); } catch (SecurityException ok) { return; }
497	+	}
498	+	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
499	+	assertTrue(p.isTerminated());
500	+	}
501	+
502	+	/**
503	+	* isTerminating is not true when running or when terminated
504	+	*/
505	+	public void testIsTerminating() throws InterruptedException {
506	+	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
507	+	final CountDownLatch threadStarted = new CountDownLatch(1);
508	+	final CountDownLatch done = new CountDownLatch(1);
509	+	try {
510	+	assertFalse(p.isTerminating());
511	+	p.execute(new CheckedRunnable() {
512	+	public void realRun() throws InterruptedException {
513	+	assertFalse(p.isTerminating());
514	+	threadStarted.countDown();
515	+	done.await();
516	+	}});
517	+	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
518	+	assertFalse(p.isTerminating());
519	+	done.countDown();
520	+	} finally {
521	+	try { p.shutdown(); } catch (SecurityException ok) { return; }
522	+	}
523	+	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
524	+	assertTrue(p.isTerminated());
525	+	assertFalse(p.isTerminating());
526	+	}
527	+
528	+	/**
529	+	* getQueue returns the work queue, which contains queued tasks
530	+	*/
531	+	public void testGetQueue() throws InterruptedException {
532	+	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
533	+	final CountDownLatch threadStarted = new CountDownLatch(1);
534	+	final CountDownLatch done = new CountDownLatch(1);
535	+	try {
536	+	ScheduledFuture[] tasks = new ScheduledFuture[5];
537	+	for (int i = 0; i < tasks.length; i++) {
538	+	Runnable r = new CheckedRunnable() {
539	+	public void realRun() throws InterruptedException {
540	+	threadStarted.countDown();
541	+	done.await();
542	+	}};
543	+	tasks[i] = p.schedule(r, 1, MILLISECONDS);
544	+	}
545	+	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
546	+	BlockingQueue<Runnable> q = p.getQueue();
547	+	assertTrue(q.contains(tasks[tasks.length - 1]));
548	+	assertFalse(q.contains(tasks[0]));
549	+	} finally {
550	+	done.countDown();
551	+	joinPool(p);
552	+	}
553	+	}
554	+
555	+	/**
556	+	* remove(task) removes queued task, and fails to remove active task
557	+	*/
558	+	public void testRemove() throws InterruptedException {
559	+	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
560	+	ScheduledFuture[] tasks = new ScheduledFuture[5];
561	+	final CountDownLatch threadStarted = new CountDownLatch(1);
562	+	final CountDownLatch done = new CountDownLatch(1);
563	+	try {
564	+	for (int i = 0; i < tasks.length; i++) {
565	+	Runnable r = new CheckedRunnable() {
566	+	public void realRun() throws InterruptedException {
567	+	threadStarted.countDown();
568	+	done.await();
569	+	}};
570	+	tasks[i] = p.schedule(r, 1, MILLISECONDS);
571	+	}
572	+	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
573	+	BlockingQueue<Runnable> q = p.getQueue();
574	+	assertFalse(p.remove((Runnable)tasks[0]));
575	+	assertTrue(q.contains((Runnable)tasks[4]));
576	+	assertTrue(q.contains((Runnable)tasks[3]));
577	+	assertTrue(p.remove((Runnable)tasks[4]));
578	+	assertFalse(p.remove((Runnable)tasks[4]));
579	+	assertFalse(q.contains((Runnable)tasks[4]));
580	+	assertTrue(q.contains((Runnable)tasks[3]));
581	+	assertTrue(p.remove((Runnable)tasks[3]));
582	+	assertFalse(q.contains((Runnable)tasks[3]));
583	+	} finally {
584	+	done.countDown();
585	+	joinPool(p);
586	+	}
587	+	}
588	+
589	+	/**
590	+	* purge removes cancelled tasks from the queue
591	+	*/
592	+	public void testPurge() throws InterruptedException {
593	+	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
594	+	ScheduledFuture[] tasks = new ScheduledFuture[5];
595	+	for (int i = 0; i < tasks.length; i++) {
596	+	tasks[i] = p.schedule(new SmallPossiblyInterruptedRunnable(), SHORT_DELAY_MS, MILLISECONDS);
597	+	}
598	+	try {
599	+	int max = tasks.length;
600	+	if (tasks[4].cancel(true)) --max;
601	+	if (tasks[3].cancel(true)) --max;
602	+	// There must eventually be an interference-free point at
603	+	// which purge will not fail. (At worst, when queue is empty.)
604	+	int k;
605	+	for (k = 0; k < SMALL_DELAY_MS; ++k) {
606	+	p.purge();
607	+	long count = p.getTaskCount();
608	+	if (count >= 0 && count <= max)
609	+	break;
610	+	delay(1);
611	+	}
612	+	assertTrue(k < SMALL_DELAY_MS);
613	+	} finally {
614	+	for (ScheduledFuture task : tasks)
615	+	task.cancel(true);
616	+	joinPool(p);
617	+	}
618	+	}
619	+
620	+	/**
621	+	* shutDownNow returns a list containing tasks that were not run
622	+	*/
623	+	public void testShutDownNow() throws InterruptedException {
624	+	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
625	+	for (int i = 0; i < 5; i++)
626	+	p.schedule(new SmallPossiblyInterruptedRunnable(), SHORT_DELAY_MS, MILLISECONDS);
627	+	List l;
628	+	try {
629	+	l = p.shutdownNow();
630	+	} catch (SecurityException ok) {
631	+	return;
632	+	}
633	+	assertTrue(p.isShutdown());
634	+	assertTrue(l.size() > 0 && l.size() <= 5);
635	+	joinPool(p);
636	+	}
637	+
638	+	/**
639	+	* In default setting, shutdown cancels periodic but not delayed
640	+	* tasks at shutdown
641	+	*/
642	+	public void testShutDown1() throws InterruptedException {
643	+	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
644	+	assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
645	+	assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
646	+
647	+	ScheduledFuture[] tasks = new ScheduledFuture[5];
648	+	for (int i = 0; i < tasks.length; i++)
649	+	tasks[i] = p.schedule(new NoOpRunnable(),
650	+	SHORT_DELAY_MS, MILLISECONDS);
651	+	try { p.shutdown(); } catch (SecurityException ok) { return; }
652	+	BlockingQueue<Runnable> q = p.getQueue();
653	+	for (ScheduledFuture task : tasks) {
654	+	assertFalse(task.isDone());
655	+	assertFalse(task.isCancelled());
656	+	assertTrue(q.contains(task));
657	+	}
658	+	assertTrue(p.isShutdown());
659	+	assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS));
660	+	assertTrue(p.isTerminated());
661	+	for (ScheduledFuture task : tasks) {
662	+	assertTrue(task.isDone());
663	+	assertFalse(task.isCancelled());
664	+	}
665	+	}
666	+
667	+
668	+	/**
669	+	* If setExecuteExistingDelayedTasksAfterShutdownPolicy is false,
670	+	* delayed tasks are cancelled at shutdown
671	+	*/
672	+	public void testShutDown2() throws InterruptedException {
673	+	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
674	+	p.setExecuteExistingDelayedTasksAfterShutdownPolicy(false);
675	+	assertFalse(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
676	+	assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
677	+	ScheduledFuture[] tasks = new ScheduledFuture[5];
678	+	for (int i = 0; i < tasks.length; i++)
679	+	tasks[i] = p.schedule(new NoOpRunnable(),
680	+	SHORT_DELAY_MS, MILLISECONDS);
681	+	BlockingQueue q = p.getQueue();
682	+	assertEquals(tasks.length, q.size());
683	+	try { p.shutdown(); } catch (SecurityException ok) { return; }
684	+	assertTrue(p.isShutdown());
685	+	assertTrue(q.isEmpty());
686	+	assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS));
687	+	assertTrue(p.isTerminated());
688	+	for (ScheduledFuture task : tasks) {
689	+	assertTrue(task.isDone());
690	+	assertTrue(task.isCancelled());
691	+	}
692	+	}
693	+
694	+	/**
695	+	* If setContinueExistingPeriodicTasksAfterShutdownPolicy is set false,
696	+	* periodic tasks are cancelled at shutdown
697	+	*/
698	+	public void testShutDown3() throws InterruptedException {
699	+	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
700	+	assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
701	+	assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
702	+	p.setContinueExistingPeriodicTasksAfterShutdownPolicy(false);
703	+	assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
704	+	assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
705	+	ScheduledFuture task =
706	+	p.scheduleAtFixedRate(new NoOpRunnable(), 5, 5, MILLISECONDS);
707	+	try { p.shutdown(); } catch (SecurityException ok) { return; }
708	+	assertTrue(p.isShutdown());
709	+	BlockingQueue q = p.getQueue();
710	+	assertTrue(p.getQueue().isEmpty());
711	+	assertTrue(task.isDone());
712	+	assertTrue(task.isCancelled());
713	+	assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS));
714	+	assertTrue(p.isTerminated());
715	+	}
716	+
717	+	/**
718	+	* if setContinueExistingPeriodicTasksAfterShutdownPolicy is true,
719	+	* periodic tasks are not cancelled at shutdown
720	+	*/
721	+	public void testShutDown4() throws InterruptedException {
722	+	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
723	+	final CountDownLatch counter = new CountDownLatch(2);
724	+	try {
725	+	p.setContinueExistingPeriodicTasksAfterShutdownPolicy(true);
726	+	assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
727	+	assertTrue(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
728	+	final Runnable r = new CheckedRunnable() {
729	+	public void realRun() {
730	+	counter.countDown();
731	+	}};
732	+	ScheduledFuture task =
733	+	p.scheduleAtFixedRate(r, 1, 1, MILLISECONDS);
734	+	assertFalse(task.isDone());
735	+	assertFalse(task.isCancelled());
736	+	try { p.shutdown(); } catch (SecurityException ok) { return; }
737	+	assertFalse(task.isCancelled());
738	+	assertFalse(p.isTerminated());
739	+	assertTrue(p.isShutdown());
740	+	assertTrue(counter.await(SMALL_DELAY_MS, MILLISECONDS));
741	+	assertFalse(task.isCancelled());
742	+	assertTrue(task.cancel(false));
743	+	assertTrue(task.isDone());
744	+	assertTrue(task.isCancelled());
745	+	assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS));
746	+	assertTrue(p.isTerminated());
747	+	}
748	+	finally {
749	+	joinPool(p);
750	+	}
751	+	}
752	+
753	+	/**
754	+	* completed submit of callable returns result
755	+	*/
756	+	public void testSubmitCallable() throws Exception {
757	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
758	+	try {
759	+	Future<String> future = e.submit(new StringTask());
760	+	String result = future.get();
761	+	assertSame(TEST_STRING, result);
762	+	} finally {
763	+	joinPool(e);
764	+	}
765	+	}
766	+
767	+	/**
768	+	* completed submit of runnable returns successfully
769	+	*/
770	+	public void testSubmitRunnable() throws Exception {
771	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
772	+	try {
773	+	Future<?> future = e.submit(new NoOpRunnable());
774	+	future.get();
775	+	assertTrue(future.isDone());
776	+	} finally {
777	+	joinPool(e);
778	+	}
779	+	}
780	+
781	+	/**
782	+	* completed submit of (runnable, result) returns result
783	+	*/
784	+	public void testSubmitRunnable2() throws Exception {
785	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
786	+	try {
787	+	Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING);
788	+	String result = future.get();
789	+	assertSame(TEST_STRING, result);
790	+	} finally {
791	+	joinPool(e);
792	+	}
793	+	}
794	+
795	+	/**
796	+	* invokeAny(null) throws NPE
797	+	*/
798	+	public void testInvokeAny1() throws Exception {
799	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
800	+	try {
801	+	e.invokeAny(null);
802	+	shouldThrow();
803	+	} catch (NullPointerException success) {
804	+	} finally {
805	+	joinPool(e);
806	+	}
807	+	}
808	+
809	+	/**
810	+	* invokeAny(empty collection) throws IAE
811	+	*/
812	+	public void testInvokeAny2() throws Exception {
813	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
814	+	try {
815	+	e.invokeAny(new ArrayList<Callable<String>>());
816	+	shouldThrow();
817	+	} catch (IllegalArgumentException success) {
818	+	} finally {
819	+	joinPool(e);
820	+	}
821	+	}
822	+
823	+	/**
824	+	* invokeAny(c) throws NPE if c has null elements
825	+	*/
826	+	public void testInvokeAny3() throws Exception {
827	+	CountDownLatch latch = new CountDownLatch(1);
828	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
829	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
830	+	l.add(latchAwaitingStringTask(latch));
831	+	l.add(null);
832	+	try {
833	+	e.invokeAny(l);
834	+	shouldThrow();
835	+	} catch (NullPointerException success) {
836	+	} finally {
837	+	latch.countDown();
838	+	joinPool(e);
839	+	}
840	+	}
841	+
842	+	/**
843	+	* invokeAny(c) throws ExecutionException if no task completes
844	+	*/
845	+	public void testInvokeAny4() throws Exception {
846	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
847	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
848	+	l.add(new NPETask());
849	+	try {
850	+	e.invokeAny(l);
851	+	shouldThrow();
852	+	} catch (ExecutionException success) {
853	+	assertTrue(success.getCause() instanceof NullPointerException);
854	+	} finally {
855	+	joinPool(e);
856	+	}
857	+	}
858	+
859	+	/**
860	+	* invokeAny(c) returns result of some task
861	+	*/
862	+	public void testInvokeAny5() throws Exception {
863	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
864	+	try {
865	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
866	+	l.add(new StringTask());
867	+	l.add(new StringTask());
868	+	String result = e.invokeAny(l);
869	+	assertSame(TEST_STRING, result);
870	+	} finally {
871	+	joinPool(e);
872	+	}
873	+	}
874	+
875	+	/**
876	+	* invokeAll(null) throws NPE
877	+	*/
878	+	public void testInvokeAll1() throws Exception {
879	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
880	+	try {
881	+	e.invokeAll(null);
882	+	shouldThrow();
883	+	} catch (NullPointerException success) {
884	+	} finally {
885	+	joinPool(e);
886	+	}
887	+	}
888	+
889	+	/**
890	+	* invokeAll(empty collection) returns empty collection
891	+	*/
892	+	public void testInvokeAll2() throws Exception {
893	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
894	+	try {
895	+	List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>());
896	+	assertTrue(r.isEmpty());
897	+	} finally {
898	+	joinPool(e);
899	+	}
900	+	}
901	+
902	+	/**
903	+	* invokeAll(c) throws NPE if c has null elements
904	+	*/
905	+	public void testInvokeAll3() throws Exception {
906	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
907	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
908	+	l.add(new StringTask());
909	+	l.add(null);
910	+	try {
911	+	e.invokeAll(l);
912	+	shouldThrow();
913	+	} catch (NullPointerException success) {
914	+	} finally {
915	+	joinPool(e);
916	+	}
917	+	}
918	+
919	+	/**
920	+	* get of invokeAll(c) throws exception on failed task
921	+	*/
922	+	public void testInvokeAll4() throws Exception {
923	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
924	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
925	+	l.add(new NPETask());
926	+	List<Future<String>> futures = e.invokeAll(l);
927	+	assertEquals(1, futures.size());
928	+	try {
929	+	futures.get(0).get();
930	+	shouldThrow();
931	+	} catch (ExecutionException success) {
932	+	assertTrue(success.getCause() instanceof NullPointerException);
933	+	} finally {
934	+	joinPool(e);
935	+	}
936	+	}
937	+
938	+	/**
939	+	* invokeAll(c) returns results of all completed tasks
940	+	*/
941	+	public void testInvokeAll5() throws Exception {
942	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
943	+	try {
944	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
945	+	l.add(new StringTask());
946	+	l.add(new StringTask());
947	+	List<Future<String>> futures = e.invokeAll(l);
948	+	assertEquals(2, futures.size());
949	+	for (Future<String> future : futures)
950	+	assertSame(TEST_STRING, future.get());
951	+	} finally {
952	+	joinPool(e);
953	+	}
954	+	}
955	+
956	+	/**
957	+	* timed invokeAny(null) throws NPE
958	+	*/
959	+	public void testTimedInvokeAny1() throws Exception {
960	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
961	+	try {
962	+	e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS);
963	+	shouldThrow();
964	+	} catch (NullPointerException success) {
965	+	} finally {
966	+	joinPool(e);
967	+	}
968	+	}
969	+
970	+	/**
971	+	* timed invokeAny(,,null) throws NPE
972	+	*/
973	+	public void testTimedInvokeAnyNullTimeUnit() throws Exception {
974	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
975	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
976	+	l.add(new StringTask());
977	+	try {
978	+	e.invokeAny(l, MEDIUM_DELAY_MS, null);
979	+	shouldThrow();
980	+	} catch (NullPointerException success) {
981	+	} finally {
982	+	joinPool(e);
983	+	}
984	+	}
985	+
986	+	/**
987	+	* timed invokeAny(empty collection) throws IAE
988	+	*/
989	+	public void testTimedInvokeAny2() throws Exception {
990	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
991	+	try {
992	+	e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
993	+	shouldThrow();
994	+	} catch (IllegalArgumentException success) {
995	+	} finally {
996	+	joinPool(e);
997	+	}
998	+	}
999	+
1000	+	/**
1001	+	* timed invokeAny(c) throws NPE if c has null elements
1002	+	*/
1003	+	public void testTimedInvokeAny3() throws Exception {
1004	+	CountDownLatch latch = new CountDownLatch(1);
1005	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1006	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
1007	+	l.add(latchAwaitingStringTask(latch));
1008	+	l.add(null);
1009	+	try {
1010	+	e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1011	+	shouldThrow();
1012	+	} catch (NullPointerException success) {
1013	+	} finally {
1014	+	latch.countDown();
1015	+	joinPool(e);
1016	+	}
1017	+	}
1018	+
1019	+	/**
1020	+	* timed invokeAny(c) throws ExecutionException if no task completes
1021	+	*/
1022	+	public void testTimedInvokeAny4() throws Exception {
1023	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1024	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
1025	+	l.add(new NPETask());
1026	+	try {
1027	+	e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1028	+	shouldThrow();
1029	+	} catch (ExecutionException success) {
1030	+	assertTrue(success.getCause() instanceof NullPointerException);
1031	+	} finally {
1032	+	joinPool(e);
1033	+	}
1034	+	}
1035	+
1036	+	/**
1037	+	* timed invokeAny(c) returns result of some task
1038	+	*/
1039	+	public void testTimedInvokeAny5() throws Exception {
1040	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1041	+	try {
1042	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
1043	+	l.add(new StringTask());
1044	+	l.add(new StringTask());
1045	+	String result = e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1046	+	assertSame(TEST_STRING, result);
1047	+	} finally {
1048	+	joinPool(e);
1049	+	}
1050	+	}
1051	+
1052	+	/**
1053	+	* timed invokeAll(null) throws NPE
1054	+	*/
1055	+	public void testTimedInvokeAll1() throws Exception {
1056	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1057	+	try {
1058	+	e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS);
1059	+	shouldThrow();
1060	+	} catch (NullPointerException success) {
1061	+	} finally {
1062	+	joinPool(e);
1063	+	}
1064	+	}
1065	+
1066	+	/**
1067	+	* timed invokeAll(,,null) throws NPE
1068	+	*/
1069	+	public void testTimedInvokeAllNullTimeUnit() throws Exception {
1070	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1071	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
1072	+	l.add(new StringTask());
1073	+	try {
1074	+	e.invokeAll(l, MEDIUM_DELAY_MS, null);
1075	+	shouldThrow();
1076	+	} catch (NullPointerException success) {
1077	+	} finally {
1078	+	joinPool(e);
1079	+	}
1080	+	}
1081	+
1082	+	/**
1083	+	* timed invokeAll(empty collection) returns empty collection
1084	+	*/
1085	+	public void testTimedInvokeAll2() throws Exception {
1086	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1087	+	try {
1088	+	List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
1089	+	assertTrue(r.isEmpty());
1090	+	} finally {
1091	+	joinPool(e);
1092	+	}
1093	+	}
1094	+
1095	+	/**
1096	+	* timed invokeAll(c) throws NPE if c has null elements
1097	+	*/
1098	+	public void testTimedInvokeAll3() throws Exception {
1099	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1100	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
1101	+	l.add(new StringTask());
1102	+	l.add(null);
1103	+	try {
1104	+	e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1105	+	shouldThrow();
1106	+	} catch (NullPointerException success) {
1107	+	} finally {
1108	+	joinPool(e);
1109	+	}
1110	+	}
1111	+
1112	+	/**
1113	+	* get of element of invokeAll(c) throws exception on failed task
1114	+	*/
1115	+	public void testTimedInvokeAll4() throws Exception {
1116	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1117	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
1118	+	l.add(new NPETask());
1119	+	List<Future<String>> futures =
1120	+	e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1121	+	assertEquals(1, futures.size());
1122	+	try {
1123	+	futures.get(0).get();
1124	+	shouldThrow();
1125	+	} catch (ExecutionException success) {
1126	+	assertTrue(success.getCause() instanceof NullPointerException);
1127	+	} finally {
1128	+	joinPool(e);
1129	+	}
1130	+	}
1131	+
1132	+	/**
1133	+	* timed invokeAll(c) returns results of all completed tasks
1134	+	*/
1135	+	public void testTimedInvokeAll5() throws Exception {
1136	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1137	+	try {
1138	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
1139	+	l.add(new StringTask());
1140	+	l.add(new StringTask());
1141	+	List<Future<String>> futures =
1142	+	e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1143	+	assertEquals(2, futures.size());
1144	+	for (Future<String> future : futures)
1145	+	assertSame(TEST_STRING, future.get());
1146	+	} finally {
1147	+	joinPool(e);
1148	+	}
1149	+	}
1150	+
1151	+	/**
1152	+	* timed invokeAll(c) cancels tasks not completed by timeout
1153	+	*/
1154	+	public void testTimedInvokeAll6() 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(Executors.callable(new MediumPossiblyInterruptedRunnable(), TEST_STRING));
1160	+	l.add(new StringTask());
1161	+	List<Future<String>> futures =
1162	+	e.invokeAll(l, SHORT_DELAY_MS, MILLISECONDS);
1163	+	assertEquals(3, futures.size());
1164	+	Iterator<Future<String>> it = futures.iterator();
1165	+	Future<String> f1 = it.next();
1166	+	Future<String> f2 = it.next();
1167	+	Future<String> f3 = it.next();
1168	+	assertTrue(f1.isDone());
1169	+	assertTrue(f2.isDone());
1170	+	assertTrue(f3.isDone());
1171	+	assertFalse(f1.isCancelled());
1172	+	assertTrue(f2.isCancelled());
1173	+	} finally {
1174	+	joinPool(e);
1175	+	}
1176	+	}
1177	+
1178	+
1179		}

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