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

Comparing jsr166/src/test/tck/ScheduledExecutorTest.java (file contents):
Revision 1.5 by dl, Sat Sep 20 18:20:08 2003 UTC vs.
Revision 1.51 by jsr166, Sat Apr 25 04:55:31 2015 UTC

#	Line 1 | Line 1
1		/*
2	<	* Written by members of JCP JSR-166 Expert Group and released to the
3	<	* public domain. Use, modify, and redistribute this code in any way
4	<	* without acknowledgement. Other contributors include Andrew Wright,
5	<	* Jeffrey Hayes, Pat Fischer, Mike Judd.
2	>	* Written by Doug Lea with assistance from members of JCP JSR-166
3	>	* Expert Group and released to the public domain, as explained at
4	>	* http://creativecommons.org/publicdomain/zero/1.0/
5	>	* Other contributors include Andrew Wright, Jeffrey Hayes,
6	>	* Pat Fisher, Mike Judd.
7		*/
8
9	<	import junit.framework.*;
10	<	import java.util.*;
11	<	import java.util.concurrent.*;
9	>	import static java.util.concurrent.TimeUnit.MILLISECONDS;
10	>
11	>	import java.util.ArrayList;
12	>	import java.util.List;
13	>	import java.util.concurrent.BlockingQueue;
14	>	import java.util.concurrent.Callable;
15	>	import java.util.concurrent.CountDownLatch;
16	>	import java.util.concurrent.ExecutionException;
17	>	import java.util.concurrent.Executors;
18	>	import java.util.concurrent.ExecutorService;
19	>	import java.util.concurrent.Future;
20	>	import java.util.concurrent.RejectedExecutionException;
21	>	import java.util.concurrent.ScheduledFuture;
22	>	import java.util.concurrent.ScheduledThreadPoolExecutor;
23	>	import java.util.concurrent.ThreadFactory;
24	>	import java.util.concurrent.ThreadPoolExecutor;
25	>	import java.util.concurrent.atomic.AtomicInteger;
26	>
27	>	import junit.framework.Test;
28	>	import junit.framework.TestSuite;
29
30		public class ScheduledExecutorTest extends JSR166TestCase {
31		public static void main(String[] args) {
32	<	junit.textui.TestRunner.run (suite());
32	>	main(suite(), args);
33		}
34		public static Test suite() {
35	<	return new TestSuite(ScheduledExecutorTest.class);
35	>	return new TestSuite(ScheduledExecutorTest.class);
36		}
37
38	<	static class MyRunnable implements Runnable {
39	<	volatile boolean done = false;
40	<	public void run() {
41	<	try {
42	<	Thread.sleep(SMALL_DELAY_MS);
43	<	done = true;
44	<	} catch(Exception e){
45	<	}
38	>	/**
39	>	* execute successfully executes a runnable
40	>	*/
41	>	public void testExecute() throws InterruptedException {
42	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
43	>	final CountDownLatch done = new CountDownLatch(1);
44	>	final Runnable task = new CheckedRunnable() {
45	>	public void realRun() {
46	>	done.countDown();
47	>	}};
48	>	try {
49	>	p.execute(task);
50	>	assertTrue(done.await(SMALL_DELAY_MS, MILLISECONDS));
51	>	} finally {
52	>	joinPool(p);
53		}
54		}
55
56	<	static class MyCallable implements Callable {
57	<	volatile boolean done = false;
58	<	public Object call() {
59	<	try {
60	<	Thread.sleep(SMALL_DELAY_MS);
61	<	done = true;
62	<	} catch(Exception e){
63	<	}
64	<	return Boolean.TRUE;
56	>	/**
57	>	* delayed schedule of callable successfully executes after delay
58	>	*/
59	>	public void testSchedule1() throws Exception {
60	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
61	>	final long startTime = System.nanoTime();
62	>	final CountDownLatch done = new CountDownLatch(1);
63	>	try {
64	>	Callable task = new CheckedCallable<Boolean>() {
65	>	public Boolean realCall() {
66	>	done.countDown();
67	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
68	>	return Boolean.TRUE;
69	>	}};
70	>	Future f = p.schedule(task, timeoutMillis(), MILLISECONDS);
71	>	assertSame(Boolean.TRUE, f.get());
72	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
73	>	assertTrue(done.await(0L, MILLISECONDS));
74	>	} finally {
75	>	joinPool(p);
76		}
77		}
78
79		/**
80	<	*
80	>	* delayed schedule of runnable successfully executes after delay
81		*/
82	<	public void testExecute() {
83	<	try {
84	<	MyRunnable runnable =new MyRunnable();
85	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
86	<	p1.execute(runnable);
87	<	assertFalse(runnable.done);
88	<	Thread.sleep(SHORT_DELAY_MS);
89	<	p1.shutdown();
90	<	try {
91	<	Thread.sleep(MEDIUM_DELAY_MS);
92	<	} catch(InterruptedException e){
93	<	unexpectedException();
94	<	}
95	<	assertTrue(runnable.done);
96	<	p1.shutdown();
97	<	joinPool(p1);
82	>	public void testSchedule3() throws Exception {
83	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
84	>	final long startTime = System.nanoTime();
85	>	final CountDownLatch done = new CountDownLatch(1);
86	>	try {
87	>	Runnable task = new CheckedRunnable() {
88	>	public void realRun() {
89	>	done.countDown();
90	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
91	>	}};
92	>	Future f = p.schedule(task, timeoutMillis(), MILLISECONDS);
93	>	await(done);
94	>	assertNull(f.get(LONG_DELAY_MS, MILLISECONDS));
95	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
96	>	} finally {
97	>	joinPool(p);
98		}
99	<	catch(Exception e){
100	<	unexpectedException();
99	>	}
100	>
101	>	/**
102	>	* scheduleAtFixedRate executes runnable after given initial delay
103	>	*/
104	>	public void testSchedule4() throws Exception {
105	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
106	>	final long startTime = System.nanoTime();
107	>	final CountDownLatch done = new CountDownLatch(1);
108	>	try {
109	>	Runnable task = new CheckedRunnable() {
110	>	public void realRun() {
111	>	done.countDown();
112	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
113	>	}};
114	>	ScheduledFuture f =
115	>	p.scheduleAtFixedRate(task, timeoutMillis(),
116	>	LONG_DELAY_MS, MILLISECONDS);
117	>	await(done);
118	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
119	>	f.cancel(true);
120	>	} finally {
121	>	joinPool(p);
122		}
66	–
123		}
124
125		/**
126	<	*
126	>	* scheduleWithFixedDelay executes runnable after given initial delay
127		*/
128	<	public void testSchedule1() {
129	<	try {
130	<	MyCallable callable = new MyCallable();
131	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
132	<	Future f = p1.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
133	<	assertFalse(callable.done);
134	<	Thread.sleep(MEDIUM_DELAY_MS);
135	<	assertTrue(callable.done);
136	<	assertEquals(Boolean.TRUE, f.get());
137	<	p1.shutdown();
138	<	joinPool(p1);
139	<	} catch(RejectedExecutionException e){}
140	<	catch(Exception e){
141	<	unexpectedException();
128	>	public void testSchedule5() throws Exception {
129	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
130	>	final long startTime = System.nanoTime();
131	>	final CountDownLatch done = new CountDownLatch(1);
132	>	try {
133	>	Runnable task = new CheckedRunnable() {
134	>	public void realRun() {
135	>	done.countDown();
136	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
137	>	}};
138	>	ScheduledFuture f =
139	>	p.scheduleWithFixedDelay(task, timeoutMillis(),
140	>	LONG_DELAY_MS, MILLISECONDS);
141	>	await(done);
142	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
143	>	f.cancel(true);
144	>	} finally {
145	>	joinPool(p);
146		}
147		}
148
149	+	static class RunnableCounter implements Runnable {
150	+	AtomicInteger count = new AtomicInteger(0);
151	+	public void run() { count.getAndIncrement(); }
152	+	}
153	+
154		/**
155	<	*
155	>	* scheduleAtFixedRate executes series of tasks at given rate
156		*/
157	<	public void testSchedule3() {
158	<	try {
159	<	MyRunnable runnable = new MyRunnable();
160	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
161	<	p1.schedule(runnable, SMALL_DELAY_MS, TimeUnit.MILLISECONDS);
162	<	Thread.sleep(SHORT_DELAY_MS);
163	<	assertFalse(runnable.done);
164	<	Thread.sleep(MEDIUM_DELAY_MS);
165	<	assertTrue(runnable.done);
166	<	p1.shutdown();
167	<	joinPool(p1);
168	<	} catch(Exception e){
169	<	unexpectedException();
157	>	public void testFixedRateSequence() throws InterruptedException {
158	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
159	>	try {
160	>	for (int delay = 1; delay <= LONG_DELAY_MS; delay *= 3) {
161	>	long startTime = System.nanoTime();
162	>	int cycles = 10;
163	>	final CountDownLatch done = new CountDownLatch(cycles);
164	>	Runnable task = new CheckedRunnable() {
165	>	public void realRun() { done.countDown(); }};
166	>	ScheduledFuture h =
167	>	p.scheduleAtFixedRate(task, 0, delay, MILLISECONDS);
168	>	done.await();
169	>	h.cancel(true);
170	>	double normalizedTime =
171	>	(double) millisElapsedSince(startTime) / delay;
172	>	if (normalizedTime >= cycles - 1 &&
173	>	normalizedTime <= cycles)
174	>	return;
175	>	}
176	>	throw new AssertionError("unexpected execution rate");
177	>	} finally {
178	>	joinPool(p);
179		}
180		}
181	<
181	>
182		/**
183	<	*
183	>	* scheduleWithFixedDelay executes series of tasks with given period
184		*/
185	<	public void testSchedule4() {
186	<	try {
187	<	MyRunnable runnable = new MyRunnable();
188	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
189	<	p1.schedule(runnable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
190	<	assertFalse(runnable.done);
191	<	Thread.sleep(MEDIUM_DELAY_MS);
192	<	assertTrue(runnable.done);
193	<	p1.shutdown();
194	<	joinPool(p1);
195	<	} catch(Exception e){
196	<	unexpectedException();
185	>	public void testFixedDelaySequence() throws InterruptedException {
186	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
187	>	try {
188	>	for (int delay = 1; delay <= LONG_DELAY_MS; delay *= 3) {
189	>	long startTime = System.nanoTime();
190	>	int cycles = 10;
191	>	final CountDownLatch done = new CountDownLatch(cycles);
192	>	Runnable task = new CheckedRunnable() {
193	>	public void realRun() { done.countDown(); }};
194	>	ScheduledFuture h =
195	>	p.scheduleWithFixedDelay(task, 0, delay, MILLISECONDS);
196	>	done.await();
197	>	h.cancel(true);
198	>	double normalizedTime =
199	>	(double) millisElapsedSince(startTime) / delay;
200	>	if (normalizedTime >= cycles - 1 &&
201	>	normalizedTime <= cycles)
202	>	return;
203	>	}
204	>	throw new AssertionError("unexpected execution rate");
205	>	} finally {
206	>	joinPool(p);
207		}
208		}
125	–
126	–
127	–	// exception tests
209
210		/**
211	<	*   schedule(Runnable, long) throws RejectedExecutionException
131	<	*  This occurs on an attempt to schedule a task on a shutdown executor
211	>	* execute(null) throws NPE
212		*/
213	<	public void testSchedule1_RejectedExecutionException() {
214	<	ScheduledExecutor se = new ScheduledExecutor(1);
213	>	public void testExecuteNull() throws InterruptedException {
214	>	ScheduledThreadPoolExecutor se = null;
215		try {
216	<	se.shutdown();
217	<	se.schedule(new NoOpRunnable(),
138	<	MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
216	>	se = new ScheduledThreadPoolExecutor(1);
217	>	se.execute(null);
218		shouldThrow();
219	<	} catch(RejectedExecutionException success){
220	<	}
219	>	} catch (NullPointerException success) {}
220	>
221		joinPool(se);
222	+	}
223
224	+	/**
225	+	* schedule(null) throws NPE
226	+	*/
227	+	public void testScheduleNull() throws InterruptedException {
228	+	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
229	+	try {
230	+	TrackedCallable callable = null;
231	+	Future f = se.schedule(callable, SHORT_DELAY_MS, MILLISECONDS);
232	+	shouldThrow();
233	+	} catch (NullPointerException success) {}
234	+	joinPool(se);
235		}
236
237		/**
238	<	*   schedule(Callable, long, TimeUnit) throws RejectedExecutionException
148	<	*  This occurs on an attempt to schedule a task on a shutdown executor
238	>	* execute throws RejectedExecutionException if shutdown
239		*/
240	<	public void testSchedule2_RejectedExecutionException() {
241	<	ScheduledExecutor se = new ScheduledExecutor(1);
240	>	public void testSchedule1_RejectedExecutionException() throws InterruptedException {
241	>	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
242		try {
243		se.shutdown();
244	<	se.schedule(new NoOpCallable(),
245	<	MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
244	>	se.schedule(new NoOpRunnable(),
245	>	MEDIUM_DELAY_MS, MILLISECONDS);
246		shouldThrow();
247	<	} catch(RejectedExecutionException success){
247	>	} catch (RejectedExecutionException success) {
248	>	} catch (SecurityException ok) {
249		}
250	+
251		joinPool(se);
252		}
253
254		/**
255	<	*   schedule(Callable, long) throws RejectedExecutionException
164	<	*  This occurs on an attempt to schedule a task on a shutdown executor
255	>	* schedule throws RejectedExecutionException if shutdown
256		*/
257	<	public void testSchedule3_RejectedExecutionException() {
258	<	ScheduledExecutor se = new ScheduledExecutor(1);
259	<	try {
257	>	public void testSchedule2_RejectedExecutionException() throws InterruptedException {
258	>	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
259	>	try {
260		se.shutdown();
261		se.schedule(new NoOpCallable(),
262	<	MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
262	>	MEDIUM_DELAY_MS, MILLISECONDS);
263		shouldThrow();
264	<	} catch(RejectedExecutionException success){
265	<	}
266	<	joinPool(se);
264	>	} catch (RejectedExecutionException success) {
265	>	} catch (SecurityException ok) {
266	>	}
267	>	joinPool(se);
268		}
269
270		/**
271	<	*   scheduleAtFixedRate(Runnable, long, long, TimeUnit) throws
180	<	*  RejectedExecutionException.
181	<	*  This occurs on an attempt to schedule a task on a shutdown executor
271	>	* schedule callable throws RejectedExecutionException if shutdown
272		*/
273	<	public void testScheduleAtFixedRate1_RejectedExecutionException() {
274	<	ScheduledExecutor se = new ScheduledExecutor(1);
273	>	public void testSchedule3_RejectedExecutionException() throws InterruptedException {
274	>	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
275		try {
276		se.shutdown();
277	<	se.scheduleAtFixedRate(new NoOpRunnable(),
278	<	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
277	>	se.schedule(new NoOpCallable(),
278	>	MEDIUM_DELAY_MS, MILLISECONDS);
279		shouldThrow();
280	<	} catch(RejectedExecutionException success){
281	<	}
280	>	} catch (RejectedExecutionException success) {
281	>	} catch (SecurityException ok) {
282	>	}
283		joinPool(se);
284		}
285	<
285	>
286		/**
287	<	*   scheduleAtFixedRate(Runnable, long, long, TimeUnit) throws
197	<	*  RejectedExecutionException.
198	<	*  This occurs on an attempt to schedule a task on a shutdown executor
287	>	* scheduleAtFixedRate throws RejectedExecutionException if shutdown
288		*/
289	<	public void testScheduleAtFixedRate2_RejectedExecutionException() {
290	<	ScheduledExecutor se = new ScheduledExecutor(1);
289	>	public void testScheduleAtFixedRate1_RejectedExecutionException() throws InterruptedException {
290	>	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
291		try {
292		se.shutdown();
293		se.scheduleAtFixedRate(new NoOpRunnable(),
294	<	1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
294	>	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS);
295		shouldThrow();
296	<	} catch(RejectedExecutionException success){
297	<	}
296	>	} catch (RejectedExecutionException success) {
297	>	} catch (SecurityException ok) {
298	>	}
299		joinPool(se);
300		}
301
302		/**
303	<	*   scheduleWithFixedDelay(Runnable, long, long, TimeUnit) throws
214	<	*  RejectedExecutionException.
215	<	*  This occurs on an attempt to schedule a task on a shutdown executor
303	>	* scheduleWithFixedDelay throws RejectedExecutionException if shutdown
304		*/
305	<	public void testScheduleWithFixedDelay1_RejectedExecutionException() {
306	<	ScheduledExecutor se = new ScheduledExecutor(1);
305	>	public void testScheduleWithFixedDelay1_RejectedExecutionException() throws InterruptedException {
306	>	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
307		try {
308		se.shutdown();
309		se.scheduleWithFixedDelay(new NoOpRunnable(),
310	<	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
310	>	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS);
311		shouldThrow();
312	<	} catch(RejectedExecutionException success){
313	<	}
312	>	} catch (RejectedExecutionException success) {
313	>	} catch (SecurityException ok) {
314	>	}
315		joinPool(se);
316		}
317
318		/**
319	<	*   scheduleWithFixedDelay(Runnable, long, long, TimeUnit) throws
320	<	*  RejectedExecutionException.
232	<	*  This occurs on an attempt to schedule a task on a shutdown executor
319	>	* getActiveCount increases but doesn't overestimate, when a
320	>	* thread becomes active
321		*/
322	<	public void testScheduleWithFixedDelay2_RejectedExecutionException() {
323	<	ScheduledExecutor se = new ScheduledExecutor(1);
322	>	public void testGetActiveCount() throws InterruptedException {
323	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(2);
324	>	final CountDownLatch threadStarted = new CountDownLatch(1);
325	>	final CountDownLatch done = new CountDownLatch(1);
326		try {
327	<	se.shutdown();
328	<	se.scheduleWithFixedDelay(new NoOpRunnable(),
329	<	1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
330	<	shouldThrow();
331	<	} catch(RejectedExecutionException success){
332	<	}
333	<	joinPool(se);
327	>	assertEquals(0, p.getActiveCount());
328	>	p.execute(new CheckedRunnable() {
329	>	public void realRun() throws InterruptedException {
330	>	threadStarted.countDown();
331	>	assertEquals(1, p.getActiveCount());
332	>	done.await();
333	>	}});
334	>	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
335	>	assertEquals(1, p.getActiveCount());
336	>	} finally {
337	>	done.countDown();
338	>	joinPool(p);
339	>	}
340		}
341
342		/**
343	<	*   execute throws RejectedExecutionException
344	<	*  This occurs on an attempt to schedule a task on a shutdown executor
343	>	* getCompletedTaskCount increases, but doesn't overestimate,
344	>	* when tasks complete
345		*/
346	<	public void testExecute_RejectedExecutionException() {
347	<	ScheduledExecutor se = new ScheduledExecutor(1);
346	>	public void testGetCompletedTaskCount() throws InterruptedException {
347	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(2);
348	>	final CountDownLatch threadStarted = new CountDownLatch(1);
349	>	final CountDownLatch threadProceed = new CountDownLatch(1);
350	>	final CountDownLatch threadDone = new CountDownLatch(1);
351		try {
352	<	se.shutdown();
353	<	se.execute(new NoOpRunnable());
352	>	assertEquals(0, p.getCompletedTaskCount());
353	>	p.execute(new CheckedRunnable() {
354	>	public void realRun() throws InterruptedException {
355	>	threadStarted.countDown();
356	>	assertEquals(0, p.getCompletedTaskCount());
357	>	threadProceed.await();
358	>	threadDone.countDown();
359	>	}});
360	>	await(threadStarted);
361	>	assertEquals(0, p.getCompletedTaskCount());
362	>	threadProceed.countDown();
363	>	threadDone.await();
364	>	long startTime = System.nanoTime();
365	>	while (p.getCompletedTaskCount() != 1) {
366	>	if (millisElapsedSince(startTime) > LONG_DELAY_MS)
367	>	fail("timed out");
368	>	Thread.yield();
369	>	}
370	>	} finally {
371	>	joinPool(p);
372	>	}
373	>	}
374	>
375	>	/**
376	>	* getCorePoolSize returns size given in constructor if not otherwise set
377	>	*/
378	>	public void testGetCorePoolSize() throws InterruptedException {
379	>	ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
380	>	assertEquals(1, p.getCorePoolSize());
381	>	joinPool(p);
382	>	}
383	>
384	>	/**
385	>	* getLargestPoolSize increases, but doesn't overestimate, when
386	>	* multiple threads active
387	>	*/
388	>	public void testGetLargestPoolSize() throws InterruptedException {
389	>	final int THREADS = 3;
390	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(THREADS);
391	>	final CountDownLatch threadsStarted = new CountDownLatch(THREADS);
392	>	final CountDownLatch done = new CountDownLatch(1);
393	>	try {
394	>	assertEquals(0, p.getLargestPoolSize());
395	>	for (int i = 0; i < THREADS; i++)
396	>	p.execute(new CheckedRunnable() {
397	>	public void realRun() throws InterruptedException {
398	>	threadsStarted.countDown();
399	>	done.await();
400	>	assertEquals(THREADS, p.getLargestPoolSize());
401	>	}});
402	>	assertTrue(threadsStarted.await(SMALL_DELAY_MS, MILLISECONDS));
403	>	assertEquals(THREADS, p.getLargestPoolSize());
404	>	} finally {
405	>	done.countDown();
406	>	joinPool(p);
407	>	assertEquals(THREADS, p.getLargestPoolSize());
408	>	}
409	>	}
410	>
411	>	/**
412	>	* getPoolSize increases, but doesn't overestimate, when threads
413	>	* become active
414	>	*/
415	>	public void testGetPoolSize() throws InterruptedException {
416	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
417	>	final CountDownLatch threadStarted = new CountDownLatch(1);
418	>	final CountDownLatch done = new CountDownLatch(1);
419	>	try {
420	>	assertEquals(0, p.getPoolSize());
421	>	p.execute(new CheckedRunnable() {
422	>	public void realRun() throws InterruptedException {
423	>	threadStarted.countDown();
424	>	assertEquals(1, p.getPoolSize());
425	>	done.await();
426	>	}});
427	>	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
428	>	assertEquals(1, p.getPoolSize());
429	>	} finally {
430	>	done.countDown();
431	>	joinPool(p);
432	>	}
433	>	}
434	>
435	>	/**
436	>	* getTaskCount increases, but doesn't overestimate, when tasks
437	>	* submitted
438	>	*/
439	>	public void testGetTaskCount() throws InterruptedException {
440	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
441	>	final CountDownLatch threadStarted = new CountDownLatch(1);
442	>	final CountDownLatch done = new CountDownLatch(1);
443	>	final int TASKS = 5;
444	>	try {
445	>	assertEquals(0, p.getTaskCount());
446	>	for (int i = 0; i < TASKS; i++)
447	>	p.execute(new CheckedRunnable() {
448	>	public void realRun() throws InterruptedException {
449	>	threadStarted.countDown();
450	>	done.await();
451	>	}});
452	>	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
453	>	assertEquals(TASKS, p.getTaskCount());
454	>	} finally {
455	>	done.countDown();
456	>	joinPool(p);
457	>	}
458	>	}
459	>
460	>	/**
461	>	* getThreadFactory returns factory in constructor if not set
462	>	*/
463	>	public void testGetThreadFactory() throws InterruptedException {
464	>	ThreadFactory tf = new SimpleThreadFactory();
465	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1, tf);
466	>	assertSame(tf, p.getThreadFactory());
467	>	joinPool(p);
468	>	}
469	>
470	>	/**
471	>	* setThreadFactory sets the thread factory returned by getThreadFactory
472	>	*/
473	>	public void testSetThreadFactory() throws InterruptedException {
474	>	ThreadFactory tf = new SimpleThreadFactory();
475	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
476	>	p.setThreadFactory(tf);
477	>	assertSame(tf, p.getThreadFactory());
478	>	joinPool(p);
479	>	}
480	>
481	>	/**
482	>	* setThreadFactory(null) throws NPE
483	>	*/
484	>	public void testSetThreadFactoryNull() throws InterruptedException {
485	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
486	>	try {
487	>	p.setThreadFactory(null);
488		shouldThrow();
489	<	} catch(RejectedExecutionException success){
490	<	}
491	<	joinPool(se);
489	>	} catch (NullPointerException success) {
490	>	} finally {
491	>	joinPool(p);
492	>	}
493	>	}
494	>
495	>	/**
496	>	* isShutdown is false before shutdown, true after
497	>	*/
498	>	public void testIsShutdown() {
499	>
500	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
501	>	try {
502	>	assertFalse(p.isShutdown());
503	>	}
504	>	finally {
505	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
506	>	}
507	>	assertTrue(p.isShutdown());
508		}
509
510		/**
511	<	*   getActiveCount gives correct values
511	>	* isTerminated is false before termination, true after
512		*/
513	<	public void testGetActiveCount() {
514	<	ScheduledExecutor p2 = new ScheduledExecutor(2);
515	<	assertEquals(0, p2.getActiveCount());
516	<	p2.execute(new SmallRunnable());
513	>	public void testIsTerminated() throws InterruptedException {
514	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
515	>	final CountDownLatch threadStarted = new CountDownLatch(1);
516	>	final CountDownLatch done = new CountDownLatch(1);
517	>	assertFalse(p.isTerminated());
518		try {
519	<	Thread.sleep(SHORT_DELAY_MS);
520	<	} catch(Exception e){
521	<	unexpectedException();
519	>	p.execute(new CheckedRunnable() {
520	>	public void realRun() throws InterruptedException {
521	>	assertFalse(p.isTerminated());
522	>	threadStarted.countDown();
523	>	done.await();
524	>	}});
525	>	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
526	>	assertFalse(p.isTerminating());
527	>	done.countDown();
528	>	} finally {
529	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
530		}
531	<	assertEquals(1, p2.getActiveCount());
532	<	joinPool(p2);
531	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
532	>	assertTrue(p.isTerminated());
533		}
534	<
534	>
535		/**
536	<	*   getCompleteTaskCount gives correct values
536	>	* isTerminating is not true when running or when terminated
537		*/
538	<	public void testGetCompletedTaskCount() {
539	<	ScheduledExecutor p2 = new ScheduledExecutor(2);
540	<	assertEquals(0, p2.getCompletedTaskCount());
541	<	p2.execute(new SmallRunnable());
538	>	public void testIsTerminating() throws InterruptedException {
539	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
540	>	final CountDownLatch threadStarted = new CountDownLatch(1);
541	>	final CountDownLatch done = new CountDownLatch(1);
542		try {
543	<	Thread.sleep(MEDIUM_DELAY_MS);
544	<	} catch(Exception e){
545	<	unexpectedException();
543	>	assertFalse(p.isTerminating());
544	>	p.execute(new CheckedRunnable() {
545	>	public void realRun() throws InterruptedException {
546	>	assertFalse(p.isTerminating());
547	>	threadStarted.countDown();
548	>	done.await();
549	>	}});
550	>	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
551	>	assertFalse(p.isTerminating());
552	>	done.countDown();
553	>	} finally {
554	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
555		}
556	<	assertEquals(1, p2.getCompletedTaskCount());
557	<	joinPool(p2);
556	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
557	>	assertTrue(p.isTerminated());
558	>	assertFalse(p.isTerminating());
559		}
560	<
560	>
561		/**
562	<	*   getCorePoolSize gives correct values
562	>	* getQueue returns the work queue, which contains queued tasks
563		*/
564	<	public void testGetCorePoolSize() {
565	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
566	<	assertEquals(1, p1.getCorePoolSize());
567	<	joinPool(p1);
564	>	public void testGetQueue() throws InterruptedException {
565	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
566	>	final CountDownLatch threadStarted = new CountDownLatch(1);
567	>	final CountDownLatch done = new CountDownLatch(1);
568	>	try {
569	>	ScheduledFuture[] tasks = new ScheduledFuture[5];
570	>	for (int i = 0; i < tasks.length; i++) {
571	>	Runnable r = new CheckedRunnable() {
572	>	public void realRun() throws InterruptedException {
573	>	threadStarted.countDown();
574	>	done.await();
575	>	}};
576	>	tasks[i] = p.schedule(r, 1, MILLISECONDS);
577	>	}
578	>	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
579	>	BlockingQueue<Runnable> q = p.getQueue();
580	>	assertTrue(q.contains(tasks[tasks.length - 1]));
581	>	assertFalse(q.contains(tasks[0]));
582	>	} finally {
583	>	done.countDown();
584	>	joinPool(p);
585	>	}
586		}
587	<
587	>
588		/**
589	<	*   getLargestPoolSize gives correct values
589	>	* remove(task) removes queued task, and fails to remove active task
590		*/
591	<	public void testGetLargestPoolSize() {
592	<	ScheduledExecutor p2 = new ScheduledExecutor(2);
593	<	assertEquals(0, p2.getLargestPoolSize());
594	<	p2.execute(new SmallRunnable());
595	<	p2.execute(new SmallRunnable());
591	>	public void testRemove() throws InterruptedException {
592	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
593	>	ScheduledFuture[] tasks = new ScheduledFuture[5];
594	>	final CountDownLatch threadStarted = new CountDownLatch(1);
595	>	final CountDownLatch done = new CountDownLatch(1);
596		try {
597	<	Thread.sleep(SHORT_DELAY_MS);
598	<	} catch(Exception e){
599	<	unexpectedException();
597	>	for (int i = 0; i < tasks.length; i++) {
598	>	Runnable r = new CheckedRunnable() {
599	>	public void realRun() throws InterruptedException {
600	>	threadStarted.countDown();
601	>	done.await();
602	>	}};
603	>	tasks[i] = p.schedule(r, 1, MILLISECONDS);
604	>	}
605	>	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
606	>	BlockingQueue<Runnable> q = p.getQueue();
607	>	assertFalse(p.remove((Runnable)tasks[0]));
608	>	assertTrue(q.contains((Runnable)tasks[4]));
609	>	assertTrue(q.contains((Runnable)tasks[3]));
610	>	assertTrue(p.remove((Runnable)tasks[4]));
611	>	assertFalse(p.remove((Runnable)tasks[4]));
612	>	assertFalse(q.contains((Runnable)tasks[4]));
613	>	assertTrue(q.contains((Runnable)tasks[3]));
614	>	assertTrue(p.remove((Runnable)tasks[3]));
615	>	assertFalse(q.contains((Runnable)tasks[3]));
616	>	} finally {
617	>	done.countDown();
618	>	joinPool(p);
619		}
315	–	assertEquals(2, p2.getLargestPoolSize());
316	–	joinPool(p2);
620		}
621	<
621	>
622		/**
623	<	*   getPoolSize gives correct values
623	>	* purge eventually removes cancelled tasks from the queue
624		*/
625	<	public void testGetPoolSize() {
626	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
627	<	assertEquals(0, p1.getPoolSize());
628	<	p1.execute(new SmallRunnable());
629	<	assertEquals(1, p1.getPoolSize());
630	<	joinPool(p1);
625	>	public void testPurge() throws InterruptedException {
626	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
627	>	ScheduledFuture[] tasks = new ScheduledFuture[5];
628	>	for (int i = 0; i < tasks.length; i++)
629	>	tasks[i] = p.schedule(new SmallPossiblyInterruptedRunnable(),
630	>	LONG_DELAY_MS, MILLISECONDS);
631	>	try {
632	>	int max = tasks.length;
633	>	if (tasks[4].cancel(true)) --max;
634	>	if (tasks[3].cancel(true)) --max;
635	>	// There must eventually be an interference-free point at
636	>	// which purge will not fail. (At worst, when queue is empty.)
637	>	long startTime = System.nanoTime();
638	>	do {
639	>	p.purge();
640	>	long count = p.getTaskCount();
641	>	if (count == max)
642	>	return;
643	>	} while (millisElapsedSince(startTime) < MEDIUM_DELAY_MS);
644	>	fail("Purge failed to remove cancelled tasks");
645	>	} finally {
646	>	for (ScheduledFuture task : tasks)
647	>	task.cancel(true);
648	>	joinPool(p);
649	>	}
650		}
651	<
651	>
652		/**
653	<	*   getTaskCount gives correct values
653	>	* shutdownNow returns a list containing tasks that were not run
654		*/
655	<	public void testGetTaskCount() {
656	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
657	<	assertEquals(0, p1.getTaskCount());
658	<	for(int i = 0; i < 5; i++)
659	<	p1.execute(new SmallRunnable());
655	>	public void testShutdownNow() {
656	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
657	>	for (int i = 0; i < 5; i++)
658	>	p.schedule(new SmallPossiblyInterruptedRunnable(),
659	>	LONG_DELAY_MS, MILLISECONDS);
660		try {
661	<	Thread.sleep(SHORT_DELAY_MS);
662	<	} catch(Exception e){
663	<	unexpectedException();
661	>	List<Runnable> l = p.shutdownNow();
662	>	assertTrue(p.isShutdown());
663	>	assertEquals(5, l.size());
664	>	} catch (SecurityException ok) {
665	>	// Allowed in case test doesn't have privs
666	>	} finally {
667	>	joinPool(p);
668	>	}
669	>	}
670	>
671	>	/**
672	>	* In default setting, shutdown cancels periodic but not delayed
673	>	* tasks at shutdown
674	>	*/
675	>	public void testShutdown1() throws InterruptedException {
676	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
677	>	assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
678	>	assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
679	>
680	>	ScheduledFuture[] tasks = new ScheduledFuture[5];
681	>	for (int i = 0; i < tasks.length; i++)
682	>	tasks[i] = p.schedule(new NoOpRunnable(),
683	>	SHORT_DELAY_MS, MILLISECONDS);
684	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
685	>	BlockingQueue<Runnable> q = p.getQueue();
686	>	for (ScheduledFuture task : tasks) {
687	>	assertFalse(task.isDone());
688	>	assertFalse(task.isCancelled());
689	>	assertTrue(q.contains(task));
690	>	}
691	>	assertTrue(p.isShutdown());
692	>	assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS));
693	>	assertTrue(p.isTerminated());
694	>	for (ScheduledFuture task : tasks) {
695	>	assertTrue(task.isDone());
696	>	assertFalse(task.isCancelled());
697		}
343	–	assertEquals(5, p1.getTaskCount());
344	–	joinPool(p1);
698		}
699	<
699	>
700		/**
701	<	*   isShutDown gives correct values
701	>	* If setExecuteExistingDelayedTasksAfterShutdownPolicy is false,
702	>	* delayed tasks are cancelled at shutdown
703		*/
704	<	public void testIsShutdown() {
705	<
706	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
704	>	public void testShutdown2() throws InterruptedException {
705	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
706	>	p.setExecuteExistingDelayedTasksAfterShutdownPolicy(false);
707	>	assertFalse(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
708	>	assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
709	>	ScheduledFuture[] tasks = new ScheduledFuture[5];
710	>	for (int i = 0; i < tasks.length; i++)
711	>	tasks[i] = p.schedule(new NoOpRunnable(),
712	>	SHORT_DELAY_MS, MILLISECONDS);
713	>	BlockingQueue q = p.getQueue();
714	>	assertEquals(tasks.length, q.size());
715	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
716	>	assertTrue(p.isShutdown());
717	>	assertTrue(q.isEmpty());
718	>	assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS));
719	>	assertTrue(p.isTerminated());
720	>	for (ScheduledFuture task : tasks) {
721	>	assertTrue(task.isDone());
722	>	assertTrue(task.isCancelled());
723	>	}
724	>	}
725	>
726	>	/**
727	>	* If setContinueExistingPeriodicTasksAfterShutdownPolicy is set false,
728	>	* periodic tasks are cancelled at shutdown
729	>	*/
730	>	public void testShutdown3() throws InterruptedException {
731	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
732	>	assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
733	>	assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
734	>	p.setContinueExistingPeriodicTasksAfterShutdownPolicy(false);
735	>	assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
736	>	assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
737	>	long initialDelay = LONG_DELAY_MS;
738	>	ScheduledFuture task =
739	>	p.scheduleAtFixedRate(new NoOpRunnable(), initialDelay,
740	>	5, MILLISECONDS);
741	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
742	>	assertTrue(p.isShutdown());
743	>	assertTrue(p.getQueue().isEmpty());
744	>	assertTrue(task.isDone());
745	>	assertTrue(task.isCancelled());
746	>	joinPool(p);
747	>	}
748	>
749	>	/**
750	>	* if setContinueExistingPeriodicTasksAfterShutdownPolicy is true,
751	>	* periodic tasks are not cancelled at shutdown
752	>	*/
753	>	public void testShutdown4() throws InterruptedException {
754	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
755	>	final CountDownLatch counter = new CountDownLatch(2);
756		try {
757	<	assertFalse(p1.isShutdown());
757	>	p.setContinueExistingPeriodicTasksAfterShutdownPolicy(true);
758	>	assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
759	>	assertTrue(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
760	>	final Runnable r = new CheckedRunnable() {
761	>	public void realRun() {
762	>	counter.countDown();
763	>	}};
764	>	ScheduledFuture task =
765	>	p.scheduleAtFixedRate(r, 1, 1, MILLISECONDS);
766	>	assertFalse(task.isDone());
767	>	assertFalse(task.isCancelled());
768	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
769	>	assertFalse(task.isCancelled());
770	>	assertFalse(p.isTerminated());
771	>	assertTrue(p.isShutdown());
772	>	assertTrue(counter.await(SMALL_DELAY_MS, MILLISECONDS));
773	>	assertFalse(task.isCancelled());
774	>	assertTrue(task.cancel(false));
775	>	assertTrue(task.isDone());
776	>	assertTrue(task.isCancelled());
777	>	assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS));
778	>	assertTrue(p.isTerminated());
779		}
780		finally {
781	<	p1.shutdown();
781	>	joinPool(p);
782		}
359	–	assertTrue(p1.isShutdown());
783		}
784
362	–
785		/**
786	<	*  isTerminated gives correct values
786	>	* completed submit of callable returns result
787		*/
788	<	public void testIsTerminated() {
789	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
788	>	public void testSubmitCallable() throws Exception {
789	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
790		try {
791	<	p1.execute(new SmallRunnable());
791	>	Future<String> future = e.submit(new StringTask());
792	>	String result = future.get();
793	>	assertSame(TEST_STRING, result);
794		} finally {
795	<	p1.shutdown();
795	>	joinPool(e);
796		}
797	+	}
798	+
799	+	/**
800	+	* completed submit of runnable returns successfully
801	+	*/
802	+	public void testSubmitRunnable() throws Exception {
803	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
804		try {
805	<	assertTrue(p1.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
806	<	assertTrue(p1.isTerminated());
807	<	} catch(Exception e){
808	<	unexpectedException();
809	<	}
805	>	Future<?> future = e.submit(new NoOpRunnable());
806	>	future.get();
807	>	assertTrue(future.isDone());
808	>	} finally {
809	>	joinPool(e);
810	>	}
811		}
812
813		/**
814	<	*  isTerminating gives correct values
814	>	* completed submit of (runnable, result) returns result
815		*/
816	<	public void testIsTerminating() {
817	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
386	<	assertFalse(p1.isTerminating());
816	>	public void testSubmitRunnable2() throws Exception {
817	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
818		try {
819	<	p1.execute(new SmallRunnable());
820	<	assertFalse(p1.isTerminating());
819	>	Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING);
820	>	String result = future.get();
821	>	assertSame(TEST_STRING, result);
822		} finally {
823	<	p1.shutdown();
823	>	joinPool(e);
824		}
825	+	}
826	+
827	+	/**
828	+	* invokeAny(null) throws NPE
829	+	*/
830	+	public void testInvokeAny1() throws Exception {
831	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
832		try {
833	<	assertTrue(p1.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
834	<	assertTrue(p1.isTerminated());
835	<	assertFalse(p1.isTerminating());
836	<	} catch(Exception e){
837	<	unexpectedException();
838	<	}
833	>	e.invokeAny(null);
834	>	shouldThrow();
835	>	} catch (NullPointerException success) {
836	>	} finally {
837	>	joinPool(e);
838	>	}
839		}
840
841		/**
842	<	*   that purge correctly removes cancelled tasks
404	<	*  from the queue
842	>	* invokeAny(empty collection) throws IAE
843		*/
844	<	public void testPurge() {
845	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
846	<	ScheduledCancellable[] tasks = new ScheduledCancellable[5];
847	<	for(int i = 0; i < 5; i++){
848	<	tasks[i] = p1.schedule(new SmallRunnable(), 1, TimeUnit.MILLISECONDS);
844	>	public void testInvokeAny2() throws Exception {
845	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
846	>	try {
847	>	e.invokeAny(new ArrayList<Callable<String>>());
848	>	shouldThrow();
849	>	} catch (IllegalArgumentException success) {
850	>	} finally {
851	>	joinPool(e);
852		}
412	–	int max = 5;
413	–	if (tasks[4].cancel(true)) --max;
414	–	if (tasks[3].cancel(true)) --max;
415	–	p1.purge();
416	–	long count = p1.getTaskCount();
417	–	assertTrue(count > 0 && count <= max);
418	–	joinPool(p1);
853		}
854
855		/**
856	<	*   shutDownNow returns a list
423	<	*  containing the correct number of elements
856	>	* invokeAny(c) throws NPE if c has null elements
857		*/
858	<	public void testShutDownNow() {
859	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
860	<	for(int i = 0; i < 5; i++)
861	<	p1.schedule(new SmallRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
862	<	List l = p1.shutdownNow();
863	<	assertTrue(p1.isShutdown());
864	<	assertTrue(l.size() > 0 && l.size() <= 5);
865	<	joinPool(p1);
858	>	public void testInvokeAny3() throws Exception {
859	>	CountDownLatch latch = new CountDownLatch(1);
860	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
861	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
862	>	l.add(latchAwaitingStringTask(latch));
863	>	l.add(null);
864	>	try {
865	>	e.invokeAny(l);
866	>	shouldThrow();
867	>	} catch (NullPointerException success) {
868	>	} finally {
869	>	latch.countDown();
870	>	joinPool(e);
871	>	}
872		}
873
874		/**
875	<	*
875	>	* invokeAny(c) throws ExecutionException if no task completes
876		*/
877	<	public void testShutDown1() {
877	>	public void testInvokeAny4() throws Exception {
878	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
879	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
880	>	l.add(new NPETask());
881		try {
882	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
883	<	assertTrue(p1.getExecuteExistingDelayedTasksAfterShutdownPolicy());
884	<	assertFalse(p1.getContinueExistingPeriodicTasksAfterShutdownPolicy());
882	>	e.invokeAny(l);
883	>	shouldThrow();
884	>	} catch (ExecutionException success) {
885	>	assertTrue(success.getCause() instanceof NullPointerException);
886	>	} finally {
887	>	joinPool(e);
888	>	}
889	>	}
890
891	<	ScheduledCancellable[] tasks = new ScheduledCancellable[5];
892	<	for(int i = 0; i < 5; i++)
893	<	tasks[i] = p1.schedule(new NoOpRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
894	<	p1.shutdown();
895	<	BlockingQueue q = p1.getQueue();
896	<	for (Iterator it = q.iterator(); it.hasNext();) {
897	<	ScheduledCancellable t = (ScheduledCancellable)it.next();
898	<	assertFalse(t.isCancelled());
899	<	}
900	<	assertTrue(p1.isShutdown());
901	<	Thread.sleep(SMALL_DELAY_MS);
902	<	for (int i = 0; i < 5; ++i) {
903	<	assertTrue(tasks[i].isDone());
457	<	assertFalse(tasks[i].isCancelled());
458	<	}
459	<
891	>	/**
892	>	* invokeAny(c) returns result of some task
893	>	*/
894	>	public void testInvokeAny5() throws Exception {
895	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
896	>	try {
897	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
898	>	l.add(new StringTask());
899	>	l.add(new StringTask());
900	>	String result = e.invokeAny(l);
901	>	assertSame(TEST_STRING, result);
902	>	} finally {
903	>	joinPool(e);
904		}
905	<	catch(Exception ex) {
906	<	unexpectedException();
905	>	}
906	>
907	>	/**
908	>	* invokeAll(null) throws NPE
909	>	*/
910	>	public void testInvokeAll1() throws Exception {
911	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
912	>	try {
913	>	e.invokeAll(null);
914	>	shouldThrow();
915	>	} catch (NullPointerException success) {
916	>	} finally {
917	>	joinPool(e);
918		}
919		}
920
921	+	/**
922	+	* invokeAll(empty collection) returns empty collection
923	+	*/
924	+	public void testInvokeAll2() throws Exception {
925	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
926	+	try {
927	+	List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>());
928	+	assertTrue(r.isEmpty());
929	+	} finally {
930	+	joinPool(e);
931	+	}
932	+	}
933
934		/**
935	<	*
935	>	* invokeAll(c) throws NPE if c has null elements
936		*/
937	<	public void testShutDown2() {
937	>	public void testInvokeAll3() throws Exception {
938	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
939	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
940	>	l.add(new StringTask());
941	>	l.add(null);
942		try {
943	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
944	<	p1.setExecuteExistingDelayedTasksAfterShutdownPolicy(false);
945	<	ScheduledCancellable[] tasks = new ScheduledCancellable[5];
946	<	for(int i = 0; i < 5; i++)
947	<	tasks[i] = p1.schedule(new NoOpRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
477	<	p1.shutdown();
478	<	assertTrue(p1.isShutdown());
479	<	BlockingQueue q = p1.getQueue();
480	<	assertTrue(q.isEmpty());
481	<	Thread.sleep(SMALL_DELAY_MS);
482	<	assertTrue(p1.isTerminated());
943	>	e.invokeAll(l);
944	>	shouldThrow();
945	>	} catch (NullPointerException success) {
946	>	} finally {
947	>	joinPool(e);
948		}
949	<	catch(Exception ex) {
950	<	unexpectedException();
949	>	}
950	>
951	>	/**
952	>	* get of invokeAll(c) throws exception on failed task
953	>	*/
954	>	public void testInvokeAll4() throws Exception {
955	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
956	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
957	>	l.add(new NPETask());
958	>	List<Future<String>> futures = e.invokeAll(l);
959	>	assertEquals(1, futures.size());
960	>	try {
961	>	futures.get(0).get();
962	>	shouldThrow();
963	>	} catch (ExecutionException success) {
964	>	assertTrue(success.getCause() instanceof NullPointerException);
965	>	} finally {
966	>	joinPool(e);
967		}
968		}
969
970	+	/**
971	+	* invokeAll(c) returns results of all completed tasks
972	+	*/
973	+	public void testInvokeAll5() throws Exception {
974	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
975	+	try {
976	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
977	+	l.add(new StringTask());
978	+	l.add(new StringTask());
979	+	List<Future<String>> futures = e.invokeAll(l);
980	+	assertEquals(2, futures.size());
981	+	for (Future<String> future : futures)
982	+	assertSame(TEST_STRING, future.get());
983	+	} finally {
984	+	joinPool(e);
985	+	}
986	+	}
987
988		/**
989	<	*
989	>	* timed invokeAny(null) throws NPE
990		*/
991	<	public void testShutDown3() {
991	>	public void testTimedInvokeAny1() throws Exception {
992	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
993		try {
994	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
995	<	p1.setContinueExistingPeriodicTasksAfterShutdownPolicy(false);
996	<	ScheduledCancellable task =
997	<	p1.scheduleAtFixedRate(new NoOpRunnable(), 5, 5, TimeUnit.MILLISECONDS);
998	<	p1.shutdown();
500	<	assertTrue(p1.isShutdown());
501	<	BlockingQueue q = p1.getQueue();
502	<	assertTrue(q.isEmpty());
503	<	Thread.sleep(SHORT_DELAY_MS);
504	<	assertTrue(p1.isTerminated());
994	>	e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS);
995	>	shouldThrow();
996	>	} catch (NullPointerException success) {
997	>	} finally {
998	>	joinPool(e);
999		}
1000	<	catch(Exception ex) {
1001	<	unexpectedException();
1000	>	}
1001	>
1002	>	/**
1003	>	* timed invokeAny(,,null) throws NPE
1004	>	*/
1005	>	public void testTimedInvokeAnyNullTimeUnit() throws Exception {
1006	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1007	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1008	>	l.add(new StringTask());
1009	>	try {
1010	>	e.invokeAny(l, MEDIUM_DELAY_MS, null);
1011	>	shouldThrow();
1012	>	} catch (NullPointerException success) {
1013	>	} finally {
1014	>	joinPool(e);
1015		}
1016		}
1017
1018		/**
1019	<	*
1019	>	* timed invokeAny(empty collection) throws IAE
1020		*/
1021	<	public void testShutDown4() {
1022	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
1021	>	public void testTimedInvokeAny2() throws Exception {
1022	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1023		try {
1024	<	p1.setContinueExistingPeriodicTasksAfterShutdownPolicy(true);
1025	<	ScheduledCancellable task =
1026	<	p1.scheduleAtFixedRate(new NoOpRunnable(), 5, 5, TimeUnit.MILLISECONDS);
1027	<	assertFalse(task.isCancelled());
1028	<	p1.shutdown();
522	<	assertFalse(task.isCancelled());
523	<	assertFalse(p1.isTerminated());
524	<	assertTrue(p1.isShutdown());
525	<	Thread.sleep(SHORT_DELAY_MS);
526	<	assertFalse(task.isCancelled());
527	<	task.cancel(true);
528	<	assertTrue(task.isCancelled());
529	<	Thread.sleep(SHORT_DELAY_MS);
530	<	assertTrue(p1.isTerminated());
1024	>	e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
1025	>	shouldThrow();
1026	>	} catch (IllegalArgumentException success) {
1027	>	} finally {
1028	>	joinPool(e);
1029		}
1030	<	catch(Exception ex) {
1031	<	unexpectedException();
1030	>	}
1031	>
1032	>	/**
1033	>	* timed invokeAny(c) throws NPE if c has null elements
1034	>	*/
1035	>	public void testTimedInvokeAny3() throws Exception {
1036	>	CountDownLatch latch = new CountDownLatch(1);
1037	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1038	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1039	>	l.add(latchAwaitingStringTask(latch));
1040	>	l.add(null);
1041	>	try {
1042	>	e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1043	>	shouldThrow();
1044	>	} catch (NullPointerException success) {
1045	>	} finally {
1046	>	latch.countDown();
1047	>	joinPool(e);
1048		}
1049	<	finally {
1050	<	p1.shutdownNow();
1049	>	}
1050	>
1051	>	/**
1052	>	* timed invokeAny(c) throws ExecutionException if no task completes
1053	>	*/
1054	>	public void testTimedInvokeAny4() throws Exception {
1055	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1056	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1057	>	l.add(new NPETask());
1058	>	try {
1059	>	e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1060	>	shouldThrow();
1061	>	} catch (ExecutionException success) {
1062	>	assertTrue(success.getCause() instanceof NullPointerException);
1063	>	} finally {
1064	>	joinPool(e);
1065	>	}
1066	>	}
1067	>
1068	>	/**
1069	>	* timed invokeAny(c) returns result of some task
1070	>	*/
1071	>	public void testTimedInvokeAny5() throws Exception {
1072	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1073	>	try {
1074	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1075	>	l.add(new StringTask());
1076	>	l.add(new StringTask());
1077	>	String result = e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1078	>	assertSame(TEST_STRING, result);
1079	>	} finally {
1080	>	joinPool(e);
1081	>	}
1082	>	}
1083	>
1084	>	/**
1085	>	* timed invokeAll(null) throws NPE
1086	>	*/
1087	>	public void testTimedInvokeAll1() throws Exception {
1088	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1089	>	try {
1090	>	e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS);
1091	>	shouldThrow();
1092	>	} catch (NullPointerException success) {
1093	>	} finally {
1094	>	joinPool(e);
1095	>	}
1096	>	}
1097	>
1098	>	/**
1099	>	* timed invokeAll(,,null) throws NPE
1100	>	*/
1101	>	public void testTimedInvokeAllNullTimeUnit() throws Exception {
1102	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1103	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1104	>	l.add(new StringTask());
1105	>	try {
1106	>	e.invokeAll(l, MEDIUM_DELAY_MS, null);
1107	>	shouldThrow();
1108	>	} catch (NullPointerException success) {
1109	>	} finally {
1110	>	joinPool(e);
1111	>	}
1112	>	}
1113	>
1114	>	/**
1115	>	* timed invokeAll(empty collection) returns empty collection
1116	>	*/
1117	>	public void testTimedInvokeAll2() throws Exception {
1118	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1119	>	try {
1120	>	List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
1121	>	assertTrue(r.isEmpty());
1122	>	} finally {
1123	>	joinPool(e);
1124	>	}
1125	>	}
1126	>
1127	>	/**
1128	>	* timed invokeAll(c) throws NPE if c has null elements
1129	>	*/
1130	>	public void testTimedInvokeAll3() throws Exception {
1131	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1132	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1133	>	l.add(new StringTask());
1134	>	l.add(null);
1135	>	try {
1136	>	e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1137	>	shouldThrow();
1138	>	} catch (NullPointerException success) {
1139	>	} finally {
1140	>	joinPool(e);
1141	>	}
1142	>	}
1143	>
1144	>	/**
1145	>	* get of element of invokeAll(c) throws exception on failed task
1146	>	*/
1147	>	public void testTimedInvokeAll4() throws Exception {
1148	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1149	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1150	>	l.add(new NPETask());
1151	>	List<Future<String>> futures =
1152	>	e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1153	>	assertEquals(1, futures.size());
1154	>	try {
1155	>	futures.get(0).get();
1156	>	shouldThrow();
1157	>	} catch (ExecutionException success) {
1158	>	assertTrue(success.getCause() instanceof NullPointerException);
1159	>	} finally {
1160	>	joinPool(e);
1161	>	}
1162	>	}
1163	>
1164	>	/**
1165	>	* timed invokeAll(c) returns results of all completed tasks
1166	>	*/
1167	>	public void testTimedInvokeAll5() throws Exception {
1168	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1169	>	try {
1170	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1171	>	l.add(new StringTask());
1172	>	l.add(new StringTask());
1173	>	List<Future<String>> futures =
1174	>	e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1175	>	assertEquals(2, futures.size());
1176	>	for (Future<String> future : futures)
1177	>	assertSame(TEST_STRING, future.get());
1178	>	} finally {
1179	>	joinPool(e);
1180	>	}
1181	>	}
1182	>
1183	>	/**
1184	>	* timed invokeAll(c) cancels tasks not completed by timeout
1185	>	*/
1186	>	public void testTimedInvokeAll6() throws Exception {
1187	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1188	>	try {
1189	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1190	>	l.add(new StringTask());
1191	>	l.add(Executors.callable(new MediumPossiblyInterruptedRunnable(), TEST_STRING));
1192	>	l.add(new StringTask());
1193	>	List<Future<String>> futures =
1194	>	e.invokeAll(l, SHORT_DELAY_MS, MILLISECONDS);
1195	>	assertEquals(l.size(), futures.size());
1196	>	for (Future future : futures)
1197	>	assertTrue(future.isDone());
1198	>	assertFalse(futures.get(0).isCancelled());
1199	>	assertTrue(futures.get(1).isCancelled());
1200	>	} finally {
1201	>	joinPool(e);
1202		}
1203		}
1204

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