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

Comparing jsr166/src/test/tck/ScheduledExecutorTest.java (file contents):
Revision 1.4 by dl, Sun Sep 14 20:42:40 2003 UTC vs.
Revision 1.65 by jsr166, Mon Oct 5 21:42:48 2015 UTC

#	Line 1 | Line 1
1		/*
2	<	* Written by members of JCP JSR-166 Expert Group and released to the
3	<	* public domain. Use, modify, and redistribute this code in any way
4	<	* without acknowledgement. Other contributors include Andrew Wright,
5	<	* Jeffrey Hayes, Pat Fischer, Mike Judd.
2	>	* Written by Doug Lea with assistance from members of JCP JSR-166
3	>	* Expert Group and released to the public domain, as explained at
4	>	* http://creativecommons.org/publicdomain/zero/1.0/
5	>	* Other contributors include Andrew Wright, Jeffrey Hayes,
6	>	* Pat Fisher, Mike Judd.
7		*/
8
9	<	import junit.framework.*;
10	<	import java.util.*;
11	<	import java.util.concurrent.*;
9	>	import static java.util.concurrent.TimeUnit.MILLISECONDS;
10	>	import static java.util.concurrent.TimeUnit.SECONDS;
11	>
12	>	import java.util.ArrayList;
13	>	import java.util.HashSet;
14	>	import java.util.List;
15	>	import java.util.concurrent.BlockingQueue;
16	>	import java.util.concurrent.Callable;
17	>	import java.util.concurrent.CancellationException;
18	>	import java.util.concurrent.CountDownLatch;
19	>	import java.util.concurrent.ExecutionException;
20	>	import java.util.concurrent.Executors;
21	>	import java.util.concurrent.ExecutorService;
22	>	import java.util.concurrent.Future;
23	>	import java.util.concurrent.RejectedExecutionException;
24	>	import java.util.concurrent.ScheduledFuture;
25	>	import java.util.concurrent.ScheduledThreadPoolExecutor;
26	>	import java.util.concurrent.ThreadFactory;
27	>	import java.util.concurrent.ThreadPoolExecutor;
28	>	import java.util.concurrent.atomic.AtomicInteger;
29	>
30	>	import junit.framework.Test;
31	>	import junit.framework.TestSuite;
32
33		public class ScheduledExecutorTest extends JSR166TestCase {
34		public static void main(String[] args) {
35	<	junit.textui.TestRunner.run (suite());
35	>	main(suite(), args);
36		}
37		public static Test suite() {
38	<	return new TestSuite(ScheduledExecutorTest.class);
38	>	return new TestSuite(ScheduledExecutorTest.class);
39		}
40
41	<	static class MyRunnable implements Runnable {
42	<	volatile boolean done = false;
43	<	public void run(){
44	<	try{
45	<	Thread.sleep(SMALL_DELAY_MS);
46	<	done = true;
47	<	} catch(Exception e){
48	<	}
41	>	/**
42	>	* execute successfully executes a runnable
43	>	*/
44	>	public void testExecute() throws InterruptedException {
45	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
46	>	try (PoolCleaner cleaner = cleaner(p)) {
47	>	final CountDownLatch done = new CountDownLatch(1);
48	>	final Runnable task = new CheckedRunnable() {
49	>	public void realRun() { done.countDown(); }};
50	>	p.execute(task);
51	>	assertTrue(done.await(SMALL_DELAY_MS, MILLISECONDS));
52		}
53		}
54
55	<	static class MyCallable implements Callable {
56	<	volatile boolean done = false;
57	<	public Object call(){
58	<	try{
59	<	Thread.sleep(SMALL_DELAY_MS);
60	<	done = true;
61	<	}catch(Exception e){}
62	<	return Boolean.TRUE;
55	>	/**
56	>	* delayed schedule of callable successfully executes after delay
57	>	*/
58	>	public void testSchedule1() throws Exception {
59	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
60	>	try (PoolCleaner cleaner = cleaner(p)) {
61	>	final long startTime = System.nanoTime();
62	>	final CountDownLatch done = new CountDownLatch(1);
63	>	Callable task = new CheckedCallable<Boolean>() {
64	>	public Boolean realCall() {
65	>	done.countDown();
66	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
67	>	return Boolean.TRUE;
68	>	}};
69	>	Future f = p.schedule(task, timeoutMillis(), MILLISECONDS);
70	>	assertSame(Boolean.TRUE, f.get());
71	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
72	>	assertTrue(done.await(0L, MILLISECONDS));
73		}
74		}
75
76	<	public void testExecute(){
77	<	try{
78	<	MyRunnable runnable =new MyRunnable();
79	<	ScheduledExecutor one = new ScheduledExecutor(1);
80	<	one.execute(runnable);
81	<	assertFalse(runnable.done);
82	<	Thread.sleep(SHORT_DELAY_MS);
83	<	one.shutdown();
84	<	try{
85	<	Thread.sleep(MEDIUM_DELAY_MS);
86	<	} catch(InterruptedException e){
87	<	fail("unexpected exception");
88	<	}
89	<	assertTrue(runnable.done);
90	<	one.shutdown();
91	<	joinPool(one);
76	>	/**
77	>	* delayed schedule of runnable successfully executes after delay
78	>	*/
79	>	public void testSchedule3() throws Exception {
80	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
81	>	try (PoolCleaner cleaner = cleaner(p)) {
82	>	final long startTime = System.nanoTime();
83	>	final CountDownLatch done = new CountDownLatch(1);
84	>	Runnable task = new CheckedRunnable() {
85	>	public void realRun() {
86	>	done.countDown();
87	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
88	>	}};
89	>	Future f = p.schedule(task, timeoutMillis(), MILLISECONDS);
90	>	await(done);
91	>	assertNull(f.get(LONG_DELAY_MS, MILLISECONDS));
92	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
93		}
94	<	catch(Exception e){
95	<	fail("unexpected exception");
94	>	}
95	>
96	>	/**
97	>	* scheduleAtFixedRate executes runnable after given initial delay
98	>	*/
99	>	public void testSchedule4() throws Exception {
100	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
101	>	try (PoolCleaner cleaner = cleaner(p)) {
102	>	final long startTime = System.nanoTime();
103	>	final CountDownLatch done = new CountDownLatch(1);
104	>	Runnable task = new CheckedRunnable() {
105	>	public void realRun() {
106	>	done.countDown();
107	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
108	>	}};
109	>	ScheduledFuture f =
110	>	p.scheduleAtFixedRate(task, timeoutMillis(),
111	>	LONG_DELAY_MS, MILLISECONDS);
112	>	await(done);
113	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
114	>	f.cancel(true);
115	>	}
116	>	}
117	>
118	>	/**
119	>	* scheduleWithFixedDelay executes runnable after given initial delay
120	>	*/
121	>	public void testSchedule5() throws Exception {
122	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
123	>	try (PoolCleaner cleaner = cleaner(p)) {
124	>	final long startTime = System.nanoTime();
125	>	final CountDownLatch done = new CountDownLatch(1);
126	>	Runnable task = new CheckedRunnable() {
127	>	public void realRun() {
128	>	done.countDown();
129	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
130	>	}};
131	>	ScheduledFuture f =
132	>	p.scheduleWithFixedDelay(task, timeoutMillis(),
133	>	LONG_DELAY_MS, MILLISECONDS);
134	>	await(done);
135	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
136	>	f.cancel(true);
137		}
62	–
138		}
139
140	<	public void testSchedule1(){
141	<	try{
142	<	MyCallable callable = new MyCallable();
143	<	ScheduledExecutor one = new ScheduledExecutor(1);
144	<	Future f = one.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
145	<	assertFalse(callable.done);
146	<	Thread.sleep(MEDIUM_DELAY_MS);
147	<	assertTrue(callable.done);
148	<	assertEquals(Boolean.TRUE, f.get());
149	<	one.shutdown();
150	<	joinPool(one);
151	<	}catch(RejectedExecutionException e){}
152	<	catch(Exception e){
153	<	fail("unexpected exception");
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	>	try (PoolCleaner cleaner = cleaner(p)) {
151	>	for (int delay = 1; delay <= LONG_DELAY_MS; delay *= 3) {
152	>	long startTime = System.nanoTime();
153	>	int cycles = 10;
154	>	final CountDownLatch done = new CountDownLatch(cycles);
155	>	Runnable task = new CheckedRunnable() {
156	>	public void realRun() { done.countDown(); }};
157	>	ScheduledFuture h =
158	>	p.scheduleAtFixedRate(task, 0, delay, MILLISECONDS);
159	>	done.await();
160	>	h.cancel(true);
161	>	double normalizedTime =
162	>	(double) millisElapsedSince(startTime) / delay;
163	>	if (normalizedTime >= cycles - 1 &&
164	>	normalizedTime <= cycles)
165	>	return;
166	>	}
167	>	throw new AssertionError("unexpected execution rate");
168		}
169		}
170
171		/**
172	<	*  Another version of schedule, only using Runnable instead of Callable
172	>	* scheduleWithFixedDelay executes series of tasks with given period
173		*/
174	<	public void testSchedule3(){
175	<	try{
176	<	MyRunnable runnable = new MyRunnable();
177	<	ScheduledExecutor one = new ScheduledExecutor(1);
178	<	one.schedule(runnable, SMALL_DELAY_MS, TimeUnit.MILLISECONDS);
179	<	Thread.sleep(SHORT_DELAY_MS);
180	<	assertFalse(runnable.done);
181	<	Thread.sleep(MEDIUM_DELAY_MS);
182	<	assertTrue(runnable.done);
183	<	one.shutdown();
184	<	joinPool(one);
185	<	} catch(Exception e){
186	<	fail("unexpected exception");
174	>	public void testFixedDelaySequence() throws InterruptedException {
175	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
176	>	try (PoolCleaner cleaner = cleaner(p)) {
177	>	for (int delay = 1; delay <= LONG_DELAY_MS; delay *= 3) {
178	>	long startTime = System.nanoTime();
179	>	int cycles = 10;
180	>	final CountDownLatch done = new CountDownLatch(cycles);
181	>	Runnable task = new CheckedRunnable() {
182	>	public void realRun() { done.countDown(); }};
183	>	ScheduledFuture h =
184	>	p.scheduleWithFixedDelay(task, 0, delay, MILLISECONDS);
185	>	done.await();
186	>	h.cancel(true);
187	>	double normalizedTime =
188	>	(double) millisElapsedSince(startTime) / delay;
189	>	if (normalizedTime >= cycles - 1 &&
190	>	normalizedTime <= cycles)
191	>	return;
192	>	}
193	>	throw new AssertionError("unexpected execution rate");
194		}
195		}
196	<
196	>
197		/**
198	<	*  The final version of schedule, using both long, TimeUnit and Runnable
198	>	* execute(null) throws NPE
199		*/
200	<	public void testSchedule4(){
201	<	try{
202	<	MyRunnable runnable = new MyRunnable();
203	<	ScheduledExecutor one = new ScheduledExecutor(1);
204	<	one.schedule(runnable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
205	<	assertFalse(runnable.done);
206	<	Thread.sleep(MEDIUM_DELAY_MS);
111	<	assertTrue(runnable.done);
112	<	one.shutdown();
113	<	joinPool(one);
114	<	} catch(Exception e){
115	<	fail("unexpected exception");
200	>	public void testExecuteNull() throws InterruptedException {
201	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
202	>	try (PoolCleaner cleaner = cleaner(p)) {
203	>	try {
204	>	p.execute(null);
205	>	shouldThrow();
206	>	} catch (NullPointerException success) {}
207		}
208		}
118	–
119	–
120	–	// exception tests
209
210		/**
211	<	*   schedule(Runnable, long) throws RejectedExecutionException
124	<	*  This occurs on an attempt to schedule a task on a shutdown executor
211	>	* schedule(null) throws NPE
212		*/
213	<	public void testSchedule1_RejectedExecutionException(){
214	<	ScheduledExecutor se = new ScheduledExecutor(1);
215	<	try{
216	<	se.shutdown();
217	<	se.schedule(new NoOpRunnable(),
218	<	MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
219	<	fail("shoud throw");
220	<	} catch(RejectedExecutionException success){
213	>	public void testScheduleNull() throws InterruptedException {
214	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
215	>	try (PoolCleaner cleaner = cleaner(p)) {
216	>	try {
217	>	TrackedCallable callable = null;
218	>	Future f = p.schedule(callable, SHORT_DELAY_MS, MILLISECONDS);
219	>	shouldThrow();
220	>	} catch (NullPointerException success) {}
221		}
222	<	joinPool(se);
222	>	}
223
224	+	/**
225	+	* execute throws RejectedExecutionException if shutdown
226	+	*/
227	+	public void testSchedule1_RejectedExecutionException() throws InterruptedException {
228	+	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
229	+	try (PoolCleaner cleaner = cleaner(p)) {
230	+	try {
231	+	p.shutdown();
232	+	p.schedule(new NoOpRunnable(),
233	+	MEDIUM_DELAY_MS, MILLISECONDS);
234	+	shouldThrow();
235	+	} catch (RejectedExecutionException success) {
236	+	} catch (SecurityException ok) {}
237	+	}
238		}
239
240		/**
241	<	*   schedule(Callable, long, TimeUnit) throws RejectedExecutionException
141	<	*  This occurs on an attempt to schedule a task on a shutdown executor
241	>	* schedule throws RejectedExecutionException if shutdown
242		*/
243	<	public void testSchedule2_RejectedExecutionException(){
244	<	ScheduledExecutor se = new ScheduledExecutor(1);
245	<	try{
246	<	se.shutdown();
247	<	se.schedule(new NoOpCallable(),
248	<	MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
249	<	fail("should throw");
250	<	} catch(RejectedExecutionException success){
243	>	public void testSchedule2_RejectedExecutionException() throws InterruptedException {
244	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
245	>	try (PoolCleaner cleaner = cleaner(p)) {
246	>	try {
247	>	p.shutdown();
248	>	p.schedule(new NoOpCallable(),
249	>	MEDIUM_DELAY_MS, MILLISECONDS);
250	>	shouldThrow();
251	>	} catch (RejectedExecutionException success) {
252	>	} catch (SecurityException ok) {}
253		}
152	–	joinPool(se);
254		}
255
256		/**
257	<	*   schedule(Callable, long) throws RejectedExecutionException
157	<	*  This occurs on an attempt to schedule a task on a shutdown executor
257	>	* schedule callable throws RejectedExecutionException if shutdown
258		*/
259	<	public void testSchedule3_RejectedExecutionException(){
260	<	ScheduledExecutor se = new ScheduledExecutor(1);
261	<	try{
262	<	se.shutdown();
263	<	se.schedule(new NoOpCallable(),
264	<	MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
265	<	fail("should throw");
266	<	} catch(RejectedExecutionException success){
267	<	}
268	<	joinPool(se);
259	>	public void testSchedule3_RejectedExecutionException() throws InterruptedException {
260	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
261	>	try (PoolCleaner cleaner = cleaner(p)) {
262	>	try {
263	>	p.shutdown();
264	>	p.schedule(new NoOpCallable(),
265	>	MEDIUM_DELAY_MS, MILLISECONDS);
266	>	shouldThrow();
267	>	} catch (RejectedExecutionException success) {
268	>	} catch (SecurityException ok) {}
269	>	}
270		}
271
272		/**
273	<	*   scheduleAtFixedRate(Runnable, long, long, TimeUnit) throws
173	<	*  RejectedExecutionException.
174	<	*  This occurs on an attempt to schedule a task on a shutdown executor
273	>	* scheduleAtFixedRate throws RejectedExecutionException if shutdown
274		*/
275	<	public void testScheduleAtFixedRate1_RejectedExecutionException(){
276	<	ScheduledExecutor se = new ScheduledExecutor(1);
277	<	try{
278	<	se.shutdown();
279	<	se.scheduleAtFixedRate(new NoOpRunnable(),
280	<	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
281	<	fail("should throw");
282	<	} catch(RejectedExecutionException success){
283	<	}
284	<	joinPool(se);
275	>	public void testScheduleAtFixedRate1_RejectedExecutionException() throws InterruptedException {
276	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
277	>	try (PoolCleaner cleaner = cleaner(p)) {
278	>	try {
279	>	p.shutdown();
280	>	p.scheduleAtFixedRate(new NoOpRunnable(),
281	>	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS);
282	>	shouldThrow();
283	>	} catch (RejectedExecutionException success) {
284	>	} catch (SecurityException ok) {}
285	>	}
286		}
287	<
287	>
288		/**
289	<	*   scheduleAtFixedRate(Runnable, long, long, TimeUnit) throws
190	<	*  RejectedExecutionException.
191	<	*  This occurs on an attempt to schedule a task on a shutdown executor
289	>	* scheduleWithFixedDelay throws RejectedExecutionException if shutdown
290		*/
291	<	public void testScheduleAtFixedRate2_RejectedExecutionException(){
292	<	ScheduledExecutor se = new ScheduledExecutor(1);
293	<	try{
294	<	se.shutdown();
295	<	se.scheduleAtFixedRate(new NoOpRunnable(),
296	<	1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
297	<	fail("should throw");
298	<	} catch(RejectedExecutionException success){
299	<	}
300	<	joinPool(se);
291	>	public void testScheduleWithFixedDelay1_RejectedExecutionException() throws InterruptedException {
292	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
293	>	try (PoolCleaner cleaner = cleaner(p)) {
294	>	try {
295	>	p.shutdown();
296	>	p.scheduleWithFixedDelay(new NoOpRunnable(),
297	>	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS);
298	>	shouldThrow();
299	>	} catch (RejectedExecutionException success) {
300	>	} catch (SecurityException ok) {}
301	>	}
302		}
303
304		/**
305	<	*   scheduleWithFixedDelay(Runnable, long, long, TimeUnit) throws
306	<	*  RejectedExecutionException.
208	<	*  This occurs on an attempt to schedule a task on a shutdown executor
305	>	* getActiveCount increases but doesn't overestimate, when a
306	>	* thread becomes active
307		*/
308	<	public void testScheduleWithFixedDelay1_RejectedExecutionException(){
309	<	ScheduledExecutor se = new ScheduledExecutor(1);
310	<	try{
311	<	se.shutdown();
312	<	se.scheduleWithFixedDelay(new NoOpRunnable(),
313	<	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
314	<	fail("should throw");
315	<	} catch(RejectedExecutionException success){
316	<	}
317	<	joinPool(se);
308	>	public void testGetActiveCount() throws InterruptedException {
309	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(2);
310	>	try (PoolCleaner cleaner = cleaner(p)) {
311	>	final CountDownLatch threadStarted = new CountDownLatch(1);
312	>	final CountDownLatch done = new CountDownLatch(1);
313	>	assertEquals(0, p.getActiveCount());
314	>	p.execute(new CheckedRunnable() {
315	>	public void realRun() throws InterruptedException {
316	>	threadStarted.countDown();
317	>	assertEquals(1, p.getActiveCount());
318	>	done.await();
319	>	}});
320	>	assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
321	>	assertEquals(1, p.getActiveCount());
322	>	done.countDown();
323	>	}
324		}
325
326		/**
327	<	*   scheduleWithFixedDelay(Runnable, long, long, TimeUnit) throws
328	<	*  RejectedExecutionException.
225	<	*  This occurs on an attempt to schedule a task on a shutdown executor
327	>	* getCompletedTaskCount increases, but doesn't overestimate,
328	>	* when tasks complete
329		*/
330	<	public void testScheduleWithFixedDelay2_RejectedExecutionException(){
331	<	ScheduledExecutor se = new ScheduledExecutor(1);
332	<	try{
333	<	se.shutdown();
334	<	se.scheduleWithFixedDelay(new NoOpRunnable(),
335	<	1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
336	<	fail("should throw");
337	<	} catch(RejectedExecutionException success){
338	<	}
339	<	joinPool(se);
330	>	public void testGetCompletedTaskCount() throws InterruptedException {
331	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(2);
332	>	try (PoolCleaner cleaner = cleaner(p)) {
333	>	final CountDownLatch threadStarted = new CountDownLatch(1);
334	>	final CountDownLatch threadProceed = new CountDownLatch(1);
335	>	final CountDownLatch threadDone = new CountDownLatch(1);
336	>	assertEquals(0, p.getCompletedTaskCount());
337	>	p.execute(new CheckedRunnable() {
338	>	public void realRun() throws InterruptedException {
339	>	threadStarted.countDown();
340	>	assertEquals(0, p.getCompletedTaskCount());
341	>	threadProceed.await();
342	>	threadDone.countDown();
343	>	}});
344	>	await(threadStarted);
345	>	assertEquals(0, p.getCompletedTaskCount());
346	>	threadProceed.countDown();
347	>	threadDone.await();
348	>	long startTime = System.nanoTime();
349	>	while (p.getCompletedTaskCount() != 1) {
350	>	if (millisElapsedSince(startTime) > LONG_DELAY_MS)
351	>	fail("timed out");
352	>	Thread.yield();
353	>	}
354	>	}
355		}
356
357		/**
358	<	*   execute throws RejectedExecutionException
241	<	*  This occurs on an attempt to schedule a task on a shutdown executor
358	>	* getCorePoolSize returns size given in constructor if not otherwise set
359		*/
360	<	public void testExecute_RejectedExecutionException(){
361	<	ScheduledExecutor se = new ScheduledExecutor(1);
362	<	try{
363	<	se.shutdown();
364	<	se.execute(new NoOpRunnable());
248	<	fail("should throw");
249	<	} catch(RejectedExecutionException success){
250	<	}
251	<	joinPool(se);
360	>	public void testGetCorePoolSize() throws InterruptedException {
361	>	ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
362	>	try (PoolCleaner cleaner = cleaner(p)) {
363	>	assertEquals(1, p.getCorePoolSize());
364	>	}
365		}
366
367		/**
368	<	*   getActiveCount gives correct values
368	>	* getLargestPoolSize increases, but doesn't overestimate, when
369	>	* multiple threads active
370		*/
371	<	public void testGetActiveCount(){
372	<	ScheduledExecutor two = new ScheduledExecutor(2);
373	<	assertEquals(0, two.getActiveCount());
374	<	two.execute(new SmallRunnable());
375	<	try{
376	<	Thread.sleep(SHORT_DELAY_MS);
377	<	} catch(Exception e){
378	<	fail("unexpected exception");
371	>	public void testGetLargestPoolSize() throws InterruptedException {
372	>	final int THREADS = 3;
373	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(THREADS);
374	>	final CountDownLatch threadsStarted = new CountDownLatch(THREADS);
375	>	final CountDownLatch done = new CountDownLatch(1);
376	>	try (PoolCleaner cleaner = cleaner(p)) {
377	>	assertEquals(0, p.getLargestPoolSize());
378	>	for (int i = 0; i < THREADS; i++)
379	>	p.execute(new CheckedRunnable() {
380	>	public void realRun() throws InterruptedException {
381	>	threadsStarted.countDown();
382	>	done.await();
383	>	assertEquals(THREADS, p.getLargestPoolSize());
384	>	}});
385	>	assertTrue(threadsStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
386	>	assertEquals(THREADS, p.getLargestPoolSize());
387	>	done.countDown();
388		}
389	<	assertEquals(1, two.getActiveCount());
267	<	joinPool(two);
389	>	assertEquals(THREADS, p.getLargestPoolSize());
390		}
391	<
391	>
392		/**
393	<	*   getCompleteTaskCount gives correct values
393	>	* getPoolSize increases, but doesn't overestimate, when threads
394	>	* become active
395		*/
396	<	public void testGetCompletedTaskCount(){
397	<	ScheduledExecutor two = new ScheduledExecutor(2);
398	<	assertEquals(0, two.getCompletedTaskCount());
399	<	two.execute(new SmallRunnable());
400	<	try{
401	<	Thread.sleep(MEDIUM_DELAY_MS);
402	<	} catch(Exception e){
403	<	fail("unexpected exception");
396	>	public void testGetPoolSize() throws InterruptedException {
397	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
398	>	final CountDownLatch threadStarted = new CountDownLatch(1);
399	>	final CountDownLatch done = new CountDownLatch(1);
400	>	try (PoolCleaner cleaner = cleaner(p)) {
401	>	assertEquals(0, p.getPoolSize());
402	>	p.execute(new CheckedRunnable() {
403	>	public void realRun() throws InterruptedException {
404	>	threadStarted.countDown();
405	>	assertEquals(1, p.getPoolSize());
406	>	done.await();
407	>	}});
408	>	assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
409	>	assertEquals(1, p.getPoolSize());
410	>	done.countDown();
411		}
282	–	assertEquals(1, two.getCompletedTaskCount());
283	–	joinPool(two);
412		}
413	<
413	>
414		/**
415	<	*   getCorePoolSize gives correct values
415	>	* getTaskCount increases, but doesn't overestimate, when tasks
416	>	* submitted
417		*/
418	<	public void testGetCorePoolSize(){
419	<	ScheduledExecutor one = new ScheduledExecutor(1);
420	<	assertEquals(1, one.getCorePoolSize());
421	<	joinPool(one);
418	>	public void testGetTaskCount() throws InterruptedException {
419	>	final int TASKS = 3;
420	>	final CountDownLatch done = new CountDownLatch(1);
421	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
422	>	try (PoolCleaner cleaner = cleaner(p, done)) {
423	>	final CountDownLatch threadStarted = new CountDownLatch(1);
424	>	assertEquals(0, p.getTaskCount());
425	>	assertEquals(0, p.getCompletedTaskCount());
426	>	p.execute(new CheckedRunnable() {
427	>	public void realRun() throws InterruptedException {
428	>	threadStarted.countDown();
429	>	done.await();
430	>	}});
431	>	assertTrue(threadStarted.await(LONG_DELAY_MS, MILLISECONDS));
432	>	assertEquals(1, p.getTaskCount());
433	>	assertEquals(0, p.getCompletedTaskCount());
434	>	for (int i = 0; i < TASKS; i++) {
435	>	assertEquals(1 + i, p.getTaskCount());
436	>	p.execute(new CheckedRunnable() {
437	>	public void realRun() throws InterruptedException {
438	>	threadStarted.countDown();
439	>	assertEquals(1 + TASKS, p.getTaskCount());
440	>	done.await();
441	>	}});
442	>	}
443	>	assertEquals(1 + TASKS, p.getTaskCount());
444	>	assertEquals(0, p.getCompletedTaskCount());
445	>	}
446	>	assertEquals(1 + TASKS, p.getTaskCount());
447	>	assertEquals(1 + TASKS, p.getCompletedTaskCount());
448		}
449	<
449	>
450		/**
451	<	*   getLargestPoolSize gives correct values
451	>	* getThreadFactory returns factory in constructor if not set
452		*/
453	<	public void testGetLargestPoolSize(){
454	<	ScheduledExecutor two = new ScheduledExecutor(2);
455	<	assertEquals(0, two.getLargestPoolSize());
456	<	two.execute(new SmallRunnable());
457	<	two.execute(new SmallRunnable());
458	<	try{
304	<	Thread.sleep(SHORT_DELAY_MS);
305	<	} catch(Exception e){
306	<	fail("unexpected exception");
453	>	public void testGetThreadFactory() throws InterruptedException {
454	>	final ThreadFactory threadFactory = new SimpleThreadFactory();
455	>	final ScheduledThreadPoolExecutor p =
456	>	new ScheduledThreadPoolExecutor(1, threadFactory);
457	>	try (PoolCleaner cleaner = cleaner(p)) {
458	>	assertSame(threadFactory, p.getThreadFactory());
459		}
308	–	assertEquals(2, two.getLargestPoolSize());
309	–	joinPool(two);
460		}
461	<
461	>
462		/**
463	<	*   getPoolSize gives correct values
463	>	* setThreadFactory sets the thread factory returned by getThreadFactory
464		*/
465	<	public void testGetPoolSize(){
466	<	ScheduledExecutor one = new ScheduledExecutor(1);
467	<	assertEquals(0, one.getPoolSize());
468	<	one.execute(new SmallRunnable());
469	<	assertEquals(1, one.getPoolSize());
470	<	joinPool(one);
465	>	public void testSetThreadFactory() throws InterruptedException {
466	>	ThreadFactory threadFactory = new SimpleThreadFactory();
467	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
468	>	try (PoolCleaner cleaner = cleaner(p)) {
469	>	p.setThreadFactory(threadFactory);
470	>	assertSame(threadFactory, p.getThreadFactory());
471	>	}
472		}
473	<
473	>
474		/**
475	<	*   getTaskCount gives correct values
475	>	* setThreadFactory(null) throws NPE
476		*/
477	<	public void testGetTaskCount(){
478	<	ScheduledExecutor one = new ScheduledExecutor(1);
479	<	assertEquals(0, one.getTaskCount());
480	<	for(int i = 0; i < 5; i++)
481	<	one.execute(new SmallRunnable());
482	<	try{
483	<	Thread.sleep(SHORT_DELAY_MS);
333	<	} catch(Exception e){
334	<	fail("unexpected exception");
477	>	public void testSetThreadFactoryNull() throws InterruptedException {
478	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
479	>	try (PoolCleaner cleaner = cleaner(p)) {
480	>	try {
481	>	p.setThreadFactory(null);
482	>	shouldThrow();
483	>	} catch (NullPointerException success) {}
484		}
336	–	assertEquals(5, one.getTaskCount());
337	–	joinPool(one);
485		}
486	<
486	>
487		/**
488	<	*   isShutDown gives correct values
488	>	* isShutdown is false before shutdown, true after
489		*/
490	<	public void testIsShutdown(){
491	<
492	<	ScheduledExecutor one = new ScheduledExecutor(1);
490	>	public void testIsShutdown() {
491	>
492	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
493		try {
494	<	assertFalse(one.isShutdown());
494	>	assertFalse(p.isShutdown());
495		}
496		finally {
497	<	one.shutdown();
497	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
498	>	}
499	>	assertTrue(p.isShutdown());
500	>	}
501	>
502	>	/**
503	>	* isTerminated is false before termination, true after
504	>	*/
505	>	public void testIsTerminated() throws InterruptedException {
506	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
507	>	try (PoolCleaner cleaner = cleaner(p)) {
508	>	final CountDownLatch threadStarted = new CountDownLatch(1);
509	>	final CountDownLatch done = new CountDownLatch(1);
510	>	assertFalse(p.isTerminated());
511	>	p.execute(new CheckedRunnable() {
512	>	public void realRun() throws InterruptedException {
513	>	assertFalse(p.isTerminated());
514	>	threadStarted.countDown();
515	>	done.await();
516	>	}});
517	>	assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
518	>	assertFalse(p.isTerminating());
519	>	done.countDown();
520	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
521	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
522	>	assertTrue(p.isTerminated());
523		}
352	–	assertTrue(one.isShutdown());
524		}
525
355	–
526		/**
527	<	*   isTerminated gives correct values
358	<	*  Makes sure termination does not take an innapropriate
359	<	*  amount of time
527	>	* isTerminating is not true when running or when terminated
528		*/
529	<	public void testIsTerminated(){
530	<	ScheduledExecutor one = new ScheduledExecutor(1);
529	>	public void testIsTerminating() throws InterruptedException {
530	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
531	>	final CountDownLatch threadStarted = new CountDownLatch(1);
532	>	final CountDownLatch done = new CountDownLatch(1);
533	>	try (PoolCleaner cleaner = cleaner(p)) {
534	>	assertFalse(p.isTerminating());
535	>	p.execute(new CheckedRunnable() {
536	>	public void realRun() throws InterruptedException {
537	>	assertFalse(p.isTerminating());
538	>	threadStarted.countDown();
539	>	done.await();
540	>	}});
541	>	assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
542	>	assertFalse(p.isTerminating());
543	>	done.countDown();
544	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
545	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
546	>	assertTrue(p.isTerminated());
547	>	assertFalse(p.isTerminating());
548	>	}
549	>	}
550	>
551	>	/**
552	>	* getQueue returns the work queue, which contains queued tasks
553	>	*/
554	>	public void testGetQueue() throws InterruptedException {
555	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
556	>	try (PoolCleaner cleaner = cleaner(p)) {
557	>	final CountDownLatch threadStarted = new CountDownLatch(1);
558	>	final CountDownLatch done = new CountDownLatch(1);
559	>	ScheduledFuture[] tasks = new ScheduledFuture[5];
560	>	for (int i = 0; i < tasks.length; i++) {
561	>	Runnable r = new CheckedRunnable() {
562	>	public void realRun() throws InterruptedException {
563	>	threadStarted.countDown();
564	>	done.await();
565	>	}};
566	>	tasks[i] = p.schedule(r, 1, MILLISECONDS);
567	>	}
568	>	assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
569	>	BlockingQueue<Runnable> q = p.getQueue();
570	>	assertTrue(q.contains(tasks[tasks.length - 1]));
571	>	assertFalse(q.contains(tasks[0]));
572	>	done.countDown();
573	>	}
574	>	}
575	>
576	>	/**
577	>	* remove(task) removes queued task, and fails to remove active task
578	>	*/
579	>	public void testRemove() throws InterruptedException {
580	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
581	>	try (PoolCleaner cleaner = cleaner(p)) {
582	>	ScheduledFuture[] tasks = new ScheduledFuture[5];
583	>	final CountDownLatch threadStarted = new CountDownLatch(1);
584	>	final CountDownLatch done = new CountDownLatch(1);
585	>	for (int i = 0; i < tasks.length; i++) {
586	>	Runnable r = new CheckedRunnable() {
587	>	public void realRun() throws InterruptedException {
588	>	threadStarted.countDown();
589	>	done.await();
590	>	}};
591	>	tasks[i] = p.schedule(r, 1, MILLISECONDS);
592	>	}
593	>	assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
594	>	BlockingQueue<Runnable> q = p.getQueue();
595	>	assertFalse(p.remove((Runnable)tasks[0]));
596	>	assertTrue(q.contains((Runnable)tasks[4]));
597	>	assertTrue(q.contains((Runnable)tasks[3]));
598	>	assertTrue(p.remove((Runnable)tasks[4]));
599	>	assertFalse(p.remove((Runnable)tasks[4]));
600	>	assertFalse(q.contains((Runnable)tasks[4]));
601	>	assertTrue(q.contains((Runnable)tasks[3]));
602	>	assertTrue(p.remove((Runnable)tasks[3]));
603	>	assertFalse(q.contains((Runnable)tasks[3]));
604	>	done.countDown();
605	>	}
606	>	}
607	>
608	>	/**
609	>	* purge eventually removes cancelled tasks from the queue
610	>	*/
611	>	public void testPurge() throws InterruptedException {
612	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
613	>	ScheduledFuture[] tasks = new ScheduledFuture[5];
614	>	for (int i = 0; i < tasks.length; i++)
615	>	tasks[i] = p.schedule(new SmallPossiblyInterruptedRunnable(),
616	>	LONG_DELAY_MS, MILLISECONDS);
617		try {
618	<	one.execute(new SmallRunnable());
618	>	int max = tasks.length;
619	>	if (tasks[4].cancel(true)) --max;
620	>	if (tasks[3].cancel(true)) --max;
621	>	// There must eventually be an interference-free point at
622	>	// which purge will not fail. (At worst, when queue is empty.)
623	>	long startTime = System.nanoTime();
624	>	do {
625	>	p.purge();
626	>	long count = p.getTaskCount();
627	>	if (count == max)
628	>	return;
629	>	} while (millisElapsedSince(startTime) < MEDIUM_DELAY_MS);
630	>	fail("Purge failed to remove cancelled tasks");
631		} finally {
632	<	one.shutdown();
632	>	for (ScheduledFuture task : tasks)
633	>	task.cancel(true);
634	>	joinPool(p);
635		}
636	+	}
637	+
638	+	/**
639	+	* shutdownNow returns a list containing tasks that were not run,
640	+	* and those tasks are drained from the queue
641	+	*/
642	+	public void testShutdownNow() throws InterruptedException {
643	+	final int poolSize = 2;
644	+	final int count = 5;
645	+	final AtomicInteger ran = new AtomicInteger(0);
646	+	final ScheduledThreadPoolExecutor p =
647	+	new ScheduledThreadPoolExecutor(poolSize);
648	+	final CountDownLatch threadsStarted = new CountDownLatch(poolSize);
649	+	Runnable waiter = new CheckedRunnable() { public void realRun() {
650	+	threadsStarted.countDown();
651	+	try {
652	+	MILLISECONDS.sleep(2 * LONG_DELAY_MS);
653	+	} catch (InterruptedException success) {}
654	+	ran.getAndIncrement();
655	+	}};
656	+	for (int i = 0; i < count; i++)
657	+	p.execute(waiter);
658	+	assertTrue(threadsStarted.await(LONG_DELAY_MS, MILLISECONDS));
659	+	assertEquals(poolSize, p.getActiveCount());
660	+	assertEquals(0, p.getCompletedTaskCount());
661	+	final List<Runnable> queuedTasks;
662	+	try {
663	+	queuedTasks = p.shutdownNow();
664	+	} catch (SecurityException ok) {
665	+	return; // Allowed in case test doesn't have privs
666	+	}
667	+	assertTrue(p.isShutdown());
668	+	assertTrue(p.getQueue().isEmpty());
669	+	assertEquals(count - poolSize, queuedTasks.size());
670	+	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
671	+	assertTrue(p.isTerminated());
672	+	assertEquals(poolSize, ran.get());
673	+	assertEquals(poolSize, p.getCompletedTaskCount());
674	+	}
675	+
676	+	/**
677	+	* shutdownNow returns a list containing tasks that were not run,
678	+	* and those tasks are drained from the queue
679	+	*/
680	+	public void testShutdownNow_delayedTasks() throws InterruptedException {
681	+	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
682	+	List<ScheduledFuture> tasks = new ArrayList<>();
683	+	for (int i = 0; i < 3; i++) {
684	+	Runnable r = new NoOpRunnable();
685	+	tasks.add(p.schedule(r, 9, SECONDS));
686	+	tasks.add(p.scheduleAtFixedRate(r, 9, 9, SECONDS));
687	+	tasks.add(p.scheduleWithFixedDelay(r, 9, 9, SECONDS));
688	+	}
689	+	if (testImplementationDetails)
690	+	assertEquals(new HashSet(tasks), new HashSet(p.getQueue()));
691	+	final List<Runnable> queuedTasks;
692		try {
693	<	assertTrue(one.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
694	<	assertTrue(one.isTerminated());
695	<	} catch(Exception e){
696	<	fail("unexpected exception");
697	<	}
693	>	queuedTasks = p.shutdownNow();
694	>	} catch (SecurityException ok) {
695	>	return; // Allowed in case test doesn't have privs
696	>	}
697	>	assertTrue(p.isShutdown());
698	>	assertTrue(p.getQueue().isEmpty());
699	>	if (testImplementationDetails)
700	>	assertEquals(new HashSet(tasks), new HashSet(queuedTasks));
701	>	assertEquals(tasks.size(), queuedTasks.size());
702	>	for (ScheduledFuture task : tasks) {
703	>	assertFalse(task.isDone());
704	>	assertFalse(task.isCancelled());
705	>	}
706	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
707	>	assertTrue(p.isTerminated());
708		}
709
710		/**
711	<	*   that purge correctly removes cancelled tasks
712	<	*  from the queue
711	>	* By default, periodic tasks are cancelled at shutdown.
712	>	* By default, delayed tasks keep running after shutdown.
713	>	* Check that changing the default values work:
714	>	* - setExecuteExistingDelayedTasksAfterShutdownPolicy
715	>	* - setContinueExistingPeriodicTasksAfterShutdownPolicy
716	>	*/
717	>	public void testShutdown_cancellation() throws Exception {
718	>	Boolean[] allBooleans = { null, Boolean.FALSE, Boolean.TRUE };
719	>	for (Boolean policy : allBooleans)
720	>	{
721	>	final int poolSize = 2;
722	>	final ScheduledThreadPoolExecutor p
723	>	= new ScheduledThreadPoolExecutor(poolSize);
724	>	final boolean effectiveDelayedPolicy = (policy != Boolean.FALSE);
725	>	final boolean effectivePeriodicPolicy = (policy == Boolean.TRUE);
726	>	final boolean effectiveRemovePolicy = (policy == Boolean.TRUE);
727	>	if (policy != null) {
728	>	p.setExecuteExistingDelayedTasksAfterShutdownPolicy(policy);
729	>	p.setContinueExistingPeriodicTasksAfterShutdownPolicy(policy);
730	>	p.setRemoveOnCancelPolicy(policy);
731	>	}
732	>	assertEquals(effectiveDelayedPolicy,
733	>	p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
734	>	assertEquals(effectivePeriodicPolicy,
735	>	p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
736	>	assertEquals(effectiveRemovePolicy,
737	>	p.getRemoveOnCancelPolicy());
738	>	// Strategy: Wedge the pool with poolSize "blocker" threads
739	>	final AtomicInteger ran = new AtomicInteger(0);
740	>	final CountDownLatch poolBlocked = new CountDownLatch(poolSize);
741	>	final CountDownLatch unblock = new CountDownLatch(1);
742	>	final CountDownLatch periodicLatch1 = new CountDownLatch(2);
743	>	final CountDownLatch periodicLatch2 = new CountDownLatch(2);
744	>	Runnable task = new CheckedRunnable() { public void realRun()
745	>	throws InterruptedException {
746	>	poolBlocked.countDown();
747	>	assertTrue(unblock.await(LONG_DELAY_MS, MILLISECONDS));
748	>	ran.getAndIncrement();
749	>	}};
750	>	List<Future<?>> blockers = new ArrayList<>();
751	>	List<Future<?>> periodics = new ArrayList<>();
752	>	List<Future<?>> delayeds = new ArrayList<>();
753	>	for (int i = 0; i < poolSize; i++)
754	>	blockers.add(p.submit(task));
755	>	assertTrue(poolBlocked.await(LONG_DELAY_MS, MILLISECONDS));
756	>
757	>	periodics.add(p.scheduleAtFixedRate(countDowner(periodicLatch1),
758	>	1, 1, MILLISECONDS));
759	>	periodics.add(p.scheduleWithFixedDelay(countDowner(periodicLatch2),
760	>	1, 1, MILLISECONDS));
761	>	delayeds.add(p.schedule(task, 1, MILLISECONDS));
762	>
763	>	assertTrue(p.getQueue().containsAll(periodics));
764	>	assertTrue(p.getQueue().containsAll(delayeds));
765	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
766	>	assertTrue(p.isShutdown());
767	>	assertFalse(p.isTerminated());
768	>	for (Future<?> periodic : periodics) {
769	>	assertTrue(effectivePeriodicPolicy ^ periodic.isCancelled());
770	>	assertTrue(effectivePeriodicPolicy ^ periodic.isDone());
771	>	}
772	>	for (Future<?> delayed : delayeds) {
773	>	assertTrue(effectiveDelayedPolicy ^ delayed.isCancelled());
774	>	assertTrue(effectiveDelayedPolicy ^ delayed.isDone());
775	>	}
776	>	if (testImplementationDetails) {
777	>	assertEquals(effectivePeriodicPolicy,
778	>	p.getQueue().containsAll(periodics));
779	>	assertEquals(effectiveDelayedPolicy,
780	>	p.getQueue().containsAll(delayeds));
781	>	}
782	>	// Release all pool threads
783	>	unblock.countDown();
784	>
785	>	for (Future<?> delayed : delayeds) {
786	>	if (effectiveDelayedPolicy) {
787	>	assertNull(delayed.get());
788	>	}
789	>	}
790	>	if (effectivePeriodicPolicy) {
791	>	assertTrue(periodicLatch1.await(LONG_DELAY_MS, MILLISECONDS));
792	>	assertTrue(periodicLatch2.await(LONG_DELAY_MS, MILLISECONDS));
793	>	for (Future<?> periodic : periodics) {
794	>	assertTrue(periodic.cancel(false));
795	>	assertTrue(periodic.isCancelled());
796	>	assertTrue(periodic.isDone());
797	>	}
798	>	}
799	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
800	>	assertTrue(p.isTerminated());
801	>	assertEquals(2 + (effectiveDelayedPolicy ? 1 : 0), ran.get());
802	>	}}
803	>
804	>	/**
805	>	* completed submit of callable returns result
806		*/
807	<	public void testPurge(){
808	<	ScheduledExecutor one = new ScheduledExecutor(1);
809	<	ScheduledCancellable[] tasks = new ScheduledCancellable[5];
810	<	for(int i = 0; i < 5; i++){
811	<	tasks[i] = one.schedule(new SmallRunnable(), 1, TimeUnit.MILLISECONDS);
807	>	public void testSubmitCallable() throws Exception {
808	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
809	>	try (PoolCleaner cleaner = cleaner(e)) {
810	>	Future<String> future = e.submit(new StringTask());
811	>	String result = future.get();
812	>	assertSame(TEST_STRING, result);
813		}
386	–	int max = 5;
387	–	if (tasks[4].cancel(true)) --max;
388	–	if (tasks[3].cancel(true)) --max;
389	–	one.purge();
390	–	long count = one.getTaskCount();
391	–	assertTrue(count > 0 && count <= max);
392	–	joinPool(one);
814		}
815
816		/**
817	<	*   shutDownNow returns a list
397	<	*  containing the correct number of elements
817	>	* completed submit of runnable returns successfully
818		*/
819	<	public void testShutDownNow(){
820	<	ScheduledExecutor one = new ScheduledExecutor(1);
821	<	for(int i = 0; i < 5; i++)
822	<	one.schedule(new SmallRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
823	<	List l = one.shutdownNow();
824	<	assertTrue(one.isShutdown());
825	<	assertTrue(l.size() > 0 && l.size() <= 5);
406	<	joinPool(one);
819	>	public void testSubmitRunnable() throws Exception {
820	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
821	>	try (PoolCleaner cleaner = cleaner(e)) {
822	>	Future<?> future = e.submit(new NoOpRunnable());
823	>	future.get();
824	>	assertTrue(future.isDone());
825	>	}
826		}
827
828	<	public void testShutDown1(){
829	<	try {
830	<	ScheduledExecutor one = new ScheduledExecutor(1);
831	<	assertTrue(one.getExecuteExistingDelayedTasksAfterShutdownPolicy());
832	<	assertFalse(one.getContinueExistingPeriodicTasksAfterShutdownPolicy());
828	>	/**
829	>	* completed submit of (runnable, result) returns result
830	>	*/
831	>	public void testSubmitRunnable2() throws Exception {
832	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
833	>	try (PoolCleaner cleaner = cleaner(e)) {
834	>	Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING);
835	>	String result = future.get();
836	>	assertSame(TEST_STRING, result);
837	>	}
838	>	}
839	>
840	>	/**
841	>	* invokeAny(null) throws NPE
842	>	*/
843	>	public void testInvokeAny1() throws Exception {
844	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
845	>	try (PoolCleaner cleaner = cleaner(e)) {
846	>	try {
847	>	e.invokeAny(null);
848	>	shouldThrow();
849	>	} catch (NullPointerException success) {}
850	>	}
851	>	}
852	>
853	>	/**
854	>	* invokeAny(empty collection) throws IAE
855	>	*/
856	>	public void testInvokeAny2() throws Exception {
857	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
858	>	try (PoolCleaner cleaner = cleaner(e)) {
859	>	try {
860	>	e.invokeAny(new ArrayList<Callable<String>>());
861	>	shouldThrow();
862	>	} catch (IllegalArgumentException success) {}
863	>	}
864	>	}
865
866	<	ScheduledCancellable[] tasks = new ScheduledCancellable[5];
867	<	for(int i = 0; i < 5; i++)
868	<	tasks[i] = one.schedule(new NoOpRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
869	<	one.shutdown();
870	<	BlockingQueue q = one.getQueue();
871	<	for (Iterator it = q.iterator(); it.hasNext();) {
872	<	ScheduledCancellable t = (ScheduledCancellable)it.next();
873	<	assertFalse(t.isCancelled());
866	>	/**
867	>	* invokeAny(c) throws NPE if c has null elements
868	>	*/
869	>	public void testInvokeAny3() throws Exception {
870	>	CountDownLatch latch = new CountDownLatch(1);
871	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
872	>	try (PoolCleaner cleaner = cleaner(e)) {
873	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
874	>	l.add(latchAwaitingStringTask(latch));
875	>	l.add(null);
876	>	try {
877	>	e.invokeAny(l);
878	>	shouldThrow();
879	>	} catch (NullPointerException success) {}
880	>	latch.countDown();
881	>	}
882	>	}
883	>
884	>	/**
885	>	* invokeAny(c) throws ExecutionException if no task completes
886	>	*/
887	>	public void testInvokeAny4() throws Exception {
888	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
889	>	try (PoolCleaner cleaner = cleaner(e)) {
890	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
891	>	l.add(new NPETask());
892	>	try {
893	>	e.invokeAny(l);
894	>	shouldThrow();
895	>	} catch (ExecutionException success) {
896	>	assertTrue(success.getCause() instanceof NullPointerException);
897		}
898	<	assertTrue(one.isShutdown());
899	<	Thread.sleep(SMALL_DELAY_MS);
900	<	for (int i = 0; i < 5; ++i) {
901	<	assertTrue(tasks[i].isDone());
902	<	assertFalse(tasks[i].isCancelled());
898	>	}
899	>	}
900	>
901	>	/**
902	>	* invokeAny(c) returns result of some task
903	>	*/
904	>	public void testInvokeAny5() throws Exception {
905	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
906	>	try (PoolCleaner cleaner = cleaner(e)) {
907	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
908	>	l.add(new StringTask());
909	>	l.add(new StringTask());
910	>	String result = e.invokeAny(l);
911	>	assertSame(TEST_STRING, result);
912	>	}
913	>	}
914	>
915	>	/**
916	>	* invokeAll(null) throws NPE
917	>	*/
918	>	public void testInvokeAll1() throws Exception {
919	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
920	>	try (PoolCleaner cleaner = cleaner(e)) {
921	>	try {
922	>	e.invokeAll(null);
923	>	shouldThrow();
924	>	} catch (NullPointerException success) {}
925	>	}
926	>	}
927	>
928	>	/**
929	>	* invokeAll(empty collection) returns empty collection
930	>	*/
931	>	public void testInvokeAll2() throws Exception {
932	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
933	>	try (PoolCleaner cleaner = cleaner(e)) {
934	>	List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>());
935	>	assertTrue(r.isEmpty());
936	>	}
937	>	}
938	>
939	>	/**
940	>	* invokeAll(c) throws NPE if c has null elements
941	>	*/
942	>	public void testInvokeAll3() throws Exception {
943	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
944	>	try (PoolCleaner cleaner = cleaner(e)) {
945	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
946	>	l.add(new StringTask());
947	>	l.add(null);
948	>	try {
949	>	e.invokeAll(l);
950	>	shouldThrow();
951	>	} catch (NullPointerException success) {}
952	>	}
953	>	}
954	>
955	>	/**
956	>	* get of invokeAll(c) throws exception on failed task
957	>	*/
958	>	public void testInvokeAll4() throws Exception {
959	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
960	>	try (PoolCleaner cleaner = cleaner(e)) {
961	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
962	>	l.add(new NPETask());
963	>	List<Future<String>> futures = e.invokeAll(l);
964	>	assertEquals(1, futures.size());
965	>	try {
966	>	futures.get(0).get();
967	>	shouldThrow();
968	>	} catch (ExecutionException success) {
969	>	assertTrue(success.getCause() instanceof NullPointerException);
970		}
430	–
971		}
972	<	catch(Exception ex) {
973	<	fail("unexpected exception");
972	>	}
973	>
974	>	/**
975	>	* invokeAll(c) returns results of all completed tasks
976	>	*/
977	>	public void testInvokeAll5() throws Exception {
978	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
979	>	try (PoolCleaner cleaner = cleaner(e)) {
980	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
981	>	l.add(new StringTask());
982	>	l.add(new StringTask());
983	>	List<Future<String>> futures = e.invokeAll(l);
984	>	assertEquals(2, futures.size());
985	>	for (Future<String> future : futures)
986	>	assertSame(TEST_STRING, future.get());
987	>	}
988	>	}
989	>
990	>	/**
991	>	* timed invokeAny(null) throws NPE
992	>	*/
993	>	public void testTimedInvokeAny1() throws Exception {
994	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
995	>	try (PoolCleaner cleaner = cleaner(e)) {
996	>	try {
997	>	e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS);
998	>	shouldThrow();
999	>	} catch (NullPointerException success) {}
1000		}
1001		}
1002
1003	+	/**
1004	+	* timed invokeAny(,,null) throws NPE
1005	+	*/
1006	+	public void testTimedInvokeAnyNullTimeUnit() throws Exception {
1007	+	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1008	+	try (PoolCleaner cleaner = cleaner(e)) {
1009	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
1010	+	l.add(new StringTask());
1011	+	try {
1012	+	e.invokeAny(l, MEDIUM_DELAY_MS, null);
1013	+	shouldThrow();
1014	+	} catch (NullPointerException success) {}
1015	+	}
1016	+	}
1017
1018	<	public void testShutDown2(){
1019	<	try {
1020	<	ScheduledExecutor one = new ScheduledExecutor(1);
1021	<	one.setExecuteExistingDelayedTasksAfterShutdownPolicy(false);
1022	<	ScheduledCancellable[] tasks = new ScheduledCancellable[5];
1023	<	for(int i = 0; i < 5; i++)
1024	<	tasks[i] = one.schedule(new NoOpRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
1025	<	one.shutdown();
1026	<	assertTrue(one.isShutdown());
1027	<	BlockingQueue q = one.getQueue();
448	<	assertTrue(q.isEmpty());
449	<	Thread.sleep(SMALL_DELAY_MS);
450	<	assertTrue(one.isTerminated());
1018	>	/**
1019	>	* timed invokeAny(empty collection) throws IAE
1020	>	*/
1021	>	public void testTimedInvokeAny2() throws Exception {
1022	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1023	>	try (PoolCleaner cleaner = cleaner(e)) {
1024	>	try {
1025	>	e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
1026	>	shouldThrow();
1027	>	} catch (IllegalArgumentException success) {}
1028		}
1029	<	catch(Exception ex) {
1030	<	fail("unexpected exception");
1029	>	}
1030	>
1031	>	/**
1032	>	* timed invokeAny(c) throws NPE if c has null elements
1033	>	*/
1034	>	public void testTimedInvokeAny3() throws Exception {
1035	>	CountDownLatch latch = new CountDownLatch(1);
1036	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1037	>	try (PoolCleaner cleaner = cleaner(e)) {
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	>	latch.countDown();
1046		}
1047		}
1048
1049	+	/**
1050	+	* timed invokeAny(c) throws ExecutionException if no task completes
1051	+	*/
1052	+	public void testTimedInvokeAny4() throws Exception {
1053	+	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1054	+	try (PoolCleaner cleaner = cleaner(e)) {
1055	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
1056	+	l.add(new NPETask());
1057	+	try {
1058	+	e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1059	+	shouldThrow();
1060	+	} catch (ExecutionException success) {
1061	+	assertTrue(success.getCause() instanceof NullPointerException);
1062	+	}
1063	+	}
1064	+	}
1065
1066	<	public void testShutDown3(){
1067	<	try {
1068	<	ScheduledExecutor one = new ScheduledExecutor(1);
1069	<	one.setContinueExistingPeriodicTasksAfterShutdownPolicy(false);
1070	<	ScheduledCancellable task =
1071	<	one.scheduleAtFixedRate(new NoOpRunnable(), 5, 5, TimeUnit.MILLISECONDS);
1072	<	one.shutdown();
1073	<	assertTrue(one.isShutdown());
1074	<	BlockingQueue q = one.getQueue();
1075	<	assertTrue(q.isEmpty());
1076	<	Thread.sleep(SHORT_DELAY_MS);
469	<	assertTrue(one.isTerminated());
1066	>	/**
1067	>	* timed invokeAny(c) returns result of some task
1068	>	*/
1069	>	public void testTimedInvokeAny5() throws Exception {
1070	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1071	>	try (PoolCleaner cleaner = cleaner(e)) {
1072	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1073	>	l.add(new StringTask());
1074	>	l.add(new StringTask());
1075	>	String result = e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1076	>	assertSame(TEST_STRING, result);
1077		}
1078	<	catch(Exception ex) {
1079	<	fail("unexpected exception");
1078	>	}
1079	>
1080	>	/**
1081	>	* timed invokeAll(null) throws NPE
1082	>	*/
1083	>	public void testTimedInvokeAll1() throws Exception {
1084	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1085	>	try (PoolCleaner cleaner = cleaner(e)) {
1086	>	try {
1087	>	e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS);
1088	>	shouldThrow();
1089	>	} catch (NullPointerException success) {}
1090		}
1091		}
1092
1093	<	public void testShutDown4(){
1094	<	ScheduledExecutor one = new ScheduledExecutor(1);
1095	<	try {
1096	<	one.setContinueExistingPeriodicTasksAfterShutdownPolicy(true);
1097	<	ScheduledCancellable task =
1098	<	one.scheduleAtFixedRate(new NoOpRunnable(), 5, 5, TimeUnit.MILLISECONDS);
1099	<	assertFalse(task.isCancelled());
1100	<	one.shutdown();
1101	<	assertFalse(task.isCancelled());
1102	<	assertFalse(one.isTerminated());
1103	<	assertTrue(one.isShutdown());
1104	<	Thread.sleep(SHORT_DELAY_MS);
1105	<	assertFalse(task.isCancelled());
1106	<	task.cancel(true);
1107	<	assertTrue(task.isCancelled());
1108	<	Thread.sleep(SHORT_DELAY_MS);
1109	<	assertTrue(one.isTerminated());
1093	>	/**
1094	>	* timed invokeAll(,,null) throws NPE
1095	>	*/
1096	>	public void testTimedInvokeAllNullTimeUnit() throws Exception {
1097	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1098	>	try (PoolCleaner cleaner = cleaner(e)) {
1099	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1100	>	l.add(new StringTask());
1101	>	try {
1102	>	e.invokeAll(l, MEDIUM_DELAY_MS, null);
1103	>	shouldThrow();
1104	>	} catch (NullPointerException success) {}
1105	>	}
1106	>	}
1107	>
1108	>	/**
1109	>	* timed invokeAll(empty collection) returns empty collection
1110	>	*/
1111	>	public void testTimedInvokeAll2() throws Exception {
1112	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1113	>	try (PoolCleaner cleaner = cleaner(e)) {
1114	>	List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(),
1115	>	MEDIUM_DELAY_MS, MILLISECONDS);
1116	>	assertTrue(r.isEmpty());
1117		}
1118	<	catch(Exception ex) {
1119	<	fail("unexpected exception");
1118	>	}
1119	>
1120	>	/**
1121	>	* timed invokeAll(c) throws NPE if c has null elements
1122	>	*/
1123	>	public void testTimedInvokeAll3() throws Exception {
1124	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1125	>	try (PoolCleaner cleaner = cleaner(e)) {
1126	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1127	>	l.add(new StringTask());
1128	>	l.add(null);
1129	>	try {
1130	>	e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1131	>	shouldThrow();
1132	>	} catch (NullPointerException success) {}
1133		}
1134	<	finally {
1135	<	one.shutdownNow();
1134	>	}
1135	>
1136	>	/**
1137	>	* get of element of invokeAll(c) throws exception on failed task
1138	>	*/
1139	>	public void testTimedInvokeAll4() throws Exception {
1140	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1141	>	try (PoolCleaner cleaner = cleaner(e)) {
1142	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1143	>	l.add(new NPETask());
1144	>	List<Future<String>> futures =
1145	>	e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1146	>	assertEquals(1, futures.size());
1147	>	try {
1148	>	futures.get(0).get();
1149	>	shouldThrow();
1150	>	} catch (ExecutionException success) {
1151	>	assertTrue(success.getCause() instanceof NullPointerException);
1152	>	}
1153	>	}
1154	>	}
1155	>
1156	>	/**
1157	>	* timed invokeAll(c) returns results of all completed tasks
1158	>	*/
1159	>	public void testTimedInvokeAll5() throws Exception {
1160	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1161	>	try (PoolCleaner cleaner = cleaner(e)) {
1162	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1163	>	l.add(new StringTask());
1164	>	l.add(new StringTask());
1165	>	List<Future<String>> futures =
1166	>	e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS);
1167	>	assertEquals(2, futures.size());
1168	>	for (Future<String> future : futures)
1169	>	assertSame(TEST_STRING, future.get());
1170	>	}
1171	>	}
1172	>
1173	>	/**
1174	>	* timed invokeAll(c) cancels tasks not completed by timeout
1175	>	*/
1176	>	public void testTimedInvokeAll6() throws Exception {
1177	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1178	>	try (PoolCleaner cleaner = cleaner(e)) {
1179	>	for (long timeout = timeoutMillis();;) {
1180	>	List<Callable<String>> tasks = new ArrayList<>();
1181	>	tasks.add(new StringTask("0"));
1182	>	tasks.add(Executors.callable(new LongPossiblyInterruptedRunnable(), TEST_STRING));
1183	>	tasks.add(new StringTask("2"));
1184	>	long startTime = System.nanoTime();
1185	>	List<Future<String>> futures =
1186	>	e.invokeAll(tasks, timeout, MILLISECONDS);
1187	>	assertEquals(tasks.size(), futures.size());
1188	>	assertTrue(millisElapsedSince(startTime) >= timeout);
1189	>	for (Future future : futures)
1190	>	assertTrue(future.isDone());
1191	>	assertTrue(futures.get(1).isCancelled());
1192	>	try {
1193	>	assertEquals("0", futures.get(0).get());
1194	>	assertEquals("2", futures.get(2).get());
1195	>	break;
1196	>	} catch (CancellationException retryWithLongerTimeout) {
1197	>	timeout *= 2;
1198	>	if (timeout >= LONG_DELAY_MS / 2)
1199	>	fail("expected exactly one task to be cancelled");
1200	>	}
1201	>	}
1202		}
1203		}
1204

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