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

Comparing jsr166/src/test/tck/ScheduledExecutorTest.java (file contents):
Revision 1.2 by dl, Sun Sep 7 23:50:09 2003 UTC vs.
Revision 1.55 by jsr166, Mon Sep 28 02:32:57 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.*;
10	<	import java.util.concurrent.*;
11	<
12	<	public class ScheduledExecutorTest extends TestCase{
13	<
14	<	boolean flag = false;
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		}
19	–
20	–
37		public static Test suite() {
38	<	return new TestSuite(ScheduledExecutorTest.class);
38	>	return new TestSuite(ScheduledExecutorTest.class);
39		}
40
41	<	private static long SHORT_DELAY_MS = 100;
42	<	private static long MEDIUM_DELAY_MS = 1000;
43	<	private static long LONG_DELAY_MS = 10000;
44	<
45	<	static class MyRunnable implements Runnable {
46	<	volatile boolean waiting = true;
47	<	volatile boolean done = false;
48	<	public void run(){
49	<	try{
50	<	Thread.sleep(SHORT_DELAY_MS);
51	<	waiting = false;
52	<	done = true;
53	<	} catch(Exception e){
54	<	}
41	>	/**
42	>	* execute successfully executes a runnable
43	>	*/
44	>	public void testExecute() throws InterruptedException {
45	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
46	>	final CountDownLatch done = new CountDownLatch(1);
47	>	final Runnable task = new CheckedRunnable() {
48	>	public void realRun() {
49	>	done.countDown();
50	>	}};
51	>	try {
52	>	p.execute(task);
53	>	assertTrue(done.await(SMALL_DELAY_MS, MILLISECONDS));
54	>	} finally {
55	>	joinPool(p);
56		}
57		}
58
59	<	static class MyCallable implements Callable {
60	<	volatile boolean waiting = true;
61	<	volatile boolean done = false;
62	<	public Object call(){
63	<	try{
64	<	Thread.sleep(SHORT_DELAY_MS);
65	<	waiting = false;
66	<	done = true;
67	<	}catch(Exception e){}
68	<	return Boolean.TRUE;
59	>	/**
60	>	* delayed schedule of callable successfully executes after delay
61	>	*/
62	>	public void testSchedule1() throws Exception {
63	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
64	>	final long startTime = System.nanoTime();
65	>	final CountDownLatch done = new CountDownLatch(1);
66	>	try {
67	>	Callable task = new CheckedCallable<Boolean>() {
68	>	public Boolean realCall() {
69	>	done.countDown();
70	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
71	>	return Boolean.TRUE;
72	>	}};
73	>	Future f = p.schedule(task, timeoutMillis(), MILLISECONDS);
74	>	assertSame(Boolean.TRUE, f.get());
75	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
76	>	assertTrue(done.await(0L, MILLISECONDS));
77	>	} finally {
78	>	joinPool(p);
79		}
80		}
81
82	<	public Runnable newRunnable(){
83	<	return new Runnable(){
84	<	public void run(){
85	<	try{Thread.sleep(SHORT_DELAY_MS);
86	<	} catch(Exception e){
87	<	}
88	<	}
89	<	};
90	<	}
91	<
92	<	public Runnable newNoopRunnable() {
93	<	return new Runnable(){
94	<	public void run(){
95	<	}
96	<	};
82	>	/**
83	>	* delayed schedule of runnable successfully executes after delay
84	>	*/
85	>	public void testSchedule3() throws Exception {
86	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
87	>	final long startTime = System.nanoTime();
88	>	final CountDownLatch done = new CountDownLatch(1);
89	>	try {
90	>	Runnable task = new CheckedRunnable() {
91	>	public void realRun() {
92	>	done.countDown();
93	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
94	>	}};
95	>	Future f = p.schedule(task, timeoutMillis(), MILLISECONDS);
96	>	await(done);
97	>	assertNull(f.get(LONG_DELAY_MS, MILLISECONDS));
98	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
99	>	} finally {
100	>	joinPool(p);
101	>	}
102		}
103
104		/**
105	<	*  Test to verify execute successfully runs the given Runnable
106	<	*/
107	<	public void testExecute(){
108	<	try{
109	<	MyRunnable runnable =new MyRunnable();
110	<	ScheduledExecutor one = new ScheduledExecutor(1);
111	<	one.execute(runnable);
112	<	Thread.sleep(SHORT_DELAY_MS/2);
113	<	assertTrue(runnable.waiting);
114	<	one.shutdown();
115	<	try{
116	<	Thread.sleep(MEDIUM_DELAY_MS);
117	<	} catch(InterruptedException e){
118	<	fail("unexpected exception");
119	<	}
120	<	assertFalse(runnable.waiting);
121	<	assertTrue(runnable.done);
122	<	one.shutdown();
123	<	}
124	<	catch(Exception e){
93	<	fail("unexpected exception");
105	>	* scheduleAtFixedRate executes runnable after given initial delay
106	>	*/
107	>	public void testSchedule4() throws Exception {
108	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
109	>	final long startTime = System.nanoTime();
110	>	final CountDownLatch done = new CountDownLatch(1);
111	>	try {
112	>	Runnable task = new CheckedRunnable() {
113	>	public void realRun() {
114	>	done.countDown();
115	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
116	>	}};
117	>	ScheduledFuture f =
118	>	p.scheduleAtFixedRate(task, timeoutMillis(),
119	>	LONG_DELAY_MS, MILLISECONDS);
120	>	await(done);
121	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
122	>	f.cancel(true);
123	>	} finally {
124	>	joinPool(p);
125		}
126		}
127
128		/**
129	<	*  Test to verify schedule successfully runs the given Callable.
99	<	*  The waiting flag shows that the Callable is not started until
100	<	*  immediately.
129	>	* scheduleWithFixedDelay executes runnable after given initial delay
130		*/
131	<	public void testSchedule1(){
132	<	try{
133	<	MyCallable callable = new MyCallable();
134	<	ScheduledExecutor one = new ScheduledExecutor(1);
135	<	Future f = one.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
136	<	assertTrue(callable.waiting);
137	<	Thread.sleep(MEDIUM_DELAY_MS);
138	<	assertTrue(callable.done);
139	<	assertEquals(Boolean.TRUE, f.get());
140	<	one.shutdown();
141	<	}catch(RejectedExecutionException e){}
142	<	catch(Exception e){
143	<	fail("unexpected exception");
131	>	public void testSchedule5() throws Exception {
132	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
133	>	final long startTime = System.nanoTime();
134	>	final CountDownLatch done = new CountDownLatch(1);
135	>	try {
136	>	Runnable task = new CheckedRunnable() {
137	>	public void realRun() {
138	>	done.countDown();
139	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
140	>	}};
141	>	ScheduledFuture f =
142	>	p.scheduleWithFixedDelay(task, timeoutMillis(),
143	>	LONG_DELAY_MS, MILLISECONDS);
144	>	await(done);
145	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
146	>	f.cancel(true);
147	>	} finally {
148	>	joinPool(p);
149		}
150		}
151
152	+	static class RunnableCounter implements Runnable {
153	+	AtomicInteger count = new AtomicInteger(0);
154	+	public void run() { count.getAndIncrement(); }
155	+	}
156	+
157		/**
158	<	*  Another version of schedule, only using Runnable instead of Callable
158	>	* scheduleAtFixedRate executes series of tasks at given rate
159		*/
160	<	public void testSchedule3(){
161	<	try{
162	<	MyRunnable runnable = new MyRunnable();
163	<	ScheduledExecutor one = new ScheduledExecutor(1);
164	<	one.schedule(runnable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
165	<	Thread.sleep(SHORT_DELAY_MS/2);
166	<	assertTrue(runnable.waiting);
167	<	Thread.sleep(MEDIUM_DELAY_MS);
168	<	assertTrue(runnable.done);
169	<	one.shutdown();
170	<	} catch(Exception e){
171	<	fail("unexpected exception");
160	>	public void testFixedRateSequence() throws InterruptedException {
161	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
162	>	try {
163	>	for (int delay = 1; delay <= LONG_DELAY_MS; delay *= 3) {
164	>	long startTime = System.nanoTime();
165	>	int cycles = 10;
166	>	final CountDownLatch done = new CountDownLatch(cycles);
167	>	Runnable task = new CheckedRunnable() {
168	>	public void realRun() { done.countDown(); }};
169	>	ScheduledFuture h =
170	>	p.scheduleAtFixedRate(task, 0, delay, MILLISECONDS);
171	>	done.await();
172	>	h.cancel(true);
173	>	double normalizedTime =
174	>	(double) millisElapsedSince(startTime) / delay;
175	>	if (normalizedTime >= cycles - 1 &&
176	>	normalizedTime <= cycles)
177	>	return;
178	>	}
179	>	throw new AssertionError("unexpected execution rate");
180	>	} finally {
181	>	joinPool(p);
182		}
183		}
184	<
184	>
185		/**
186	<	*  The final version of schedule, using both long, TimeUnit and Runnable
186	>	* scheduleWithFixedDelay executes series of tasks with given period
187		*/
188	<	public void testSchedule4(){
189	<	try{
190	<	MyRunnable runnable = new MyRunnable();
191	<	ScheduledExecutor one = new ScheduledExecutor(1);
192	<	one.schedule(runnable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
193	<	//      Thread.sleep(505);
194	<	assertTrue(runnable.waiting);
195	<	Thread.sleep(MEDIUM_DELAY_MS);
196	<	assertTrue(runnable.done);
197	<	one.shutdown();
198	<	} catch(Exception e){
199	<	fail("unexpected exception");
188	>	public void testFixedDelaySequence() throws InterruptedException {
189	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
190	>	try {
191	>	for (int delay = 1; delay <= LONG_DELAY_MS; delay *= 3) {
192	>	long startTime = System.nanoTime();
193	>	int cycles = 10;
194	>	final CountDownLatch done = new CountDownLatch(cycles);
195	>	Runnable task = new CheckedRunnable() {
196	>	public void realRun() { done.countDown(); }};
197	>	ScheduledFuture h =
198	>	p.scheduleWithFixedDelay(task, 0, delay, MILLISECONDS);
199	>	done.await();
200	>	h.cancel(true);
201	>	double normalizedTime =
202	>	(double) millisElapsedSince(startTime) / delay;
203	>	if (normalizedTime >= cycles - 1 &&
204	>	normalizedTime <= cycles)
205	>	return;
206	>	}
207	>	throw new AssertionError("unexpected execution rate");
208	>	} finally {
209	>	joinPool(p);
210		}
211		}
153	–
154	–
155	–	// exception tests
212
213		/**
214	<	*  Test to verify schedule(Runnable, long) throws RejectedExecutionException
159	<	*  This occurs on an attempt to schedule a task on a shutdown executor
214	>	* execute(null) throws NPE
215		*/
216	<	public void testSchedule1_RejectedExecutionException(){
217	<	try{
218	<	ScheduledExecutor se = new ScheduledExecutor(1);
219	<	se.shutdown();
220	<	se.schedule(new Runnable(){
221	<	public void run(){}
222	<	}, 10000, TimeUnit.MILLISECONDS);
223	<	fail("shoud throw");
224	<	}catch(RejectedExecutionException e){}
216	>	public void testExecuteNull() throws InterruptedException {
217	>	ScheduledThreadPoolExecutor se = null;
218	>	try {
219	>	se = new ScheduledThreadPoolExecutor(1);
220	>	se.execute(null);
221	>	shouldThrow();
222	>	} catch (NullPointerException success) {}
223	>
224	>	joinPool(se);
225		}
226
227		/**
228	<	*  Test to verify schedule(Callable, long, TimeUnit) throws RejectedExecutionException
174	<	*  This occurs on an attempt to schedule a task on a shutdown executor
228	>	* schedule(null) throws NPE
229		*/
230	<	public void testSchedule2_RejectedExecutionException(){
231	<	try{
232	<	ScheduledExecutor se = new ScheduledExecutor(1);
233	<	se.shutdown();
234	<	se.schedule(new Callable(){
235	<	public Object call(){
236	<	return Boolean.TRUE;
237	<	}
184	<	}, (long)100, TimeUnit.SECONDS);
185	<	fail("should throw");
186	<	}catch(RejectedExecutionException e){}
230	>	public void testScheduleNull() throws InterruptedException {
231	>	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
232	>	try {
233	>	TrackedCallable callable = null;
234	>	Future f = se.schedule(callable, SHORT_DELAY_MS, MILLISECONDS);
235	>	shouldThrow();
236	>	} catch (NullPointerException success) {}
237	>	joinPool(se);
238		}
239
240		/**
241	<	*  Test to verify schedule(Callable, long) throws RejectedExecutionException
242	<	*  This occurs on an attempt to schedule a task on a shutdown executor
243	<	*/
244	<	public void testSchedule3_RejectedExecutionException(){
245	<	try{
195	<	ScheduledExecutor se = new ScheduledExecutor(1);
241	>	* execute throws RejectedExecutionException if shutdown
242	>	*/
243	>	public void testSchedule1_RejectedExecutionException() throws InterruptedException {
244	>	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
245	>	try {
246		se.shutdown();
247	<	se.schedule(new Callable(){
248	<	public Object call(){
249	<	return Boolean.TRUE;
250	<	}
251	<	},  10000, TimeUnit.MILLISECONDS);
252	<	fail("should throw");
253	<	}catch(RejectedExecutionException e){}
247	>	se.schedule(new NoOpRunnable(),
248	>	MEDIUM_DELAY_MS, MILLISECONDS);
249	>	shouldThrow();
250	>	} catch (RejectedExecutionException success) {
251	>	} catch (SecurityException ok) {
252	>	}
253	>
254	>	joinPool(se);
255		}
256
257		/**
258	<	*  Test to verify scheduleAtFixedRate(Runnable, long, long, TimeUnit) throws
259	<	*  RejectedExecutionException.
260	<	*  This occurs on an attempt to schedule a task on a shutdown executor
261	<	*/
262	<	public void testScheduleAtFixedRate1_RejectedExecutionException(){
212	<	try{
213	<	ScheduledExecutor se = new ScheduledExecutor(1);
214	<	se.shutdown();
215	<	se.scheduleAtFixedRate(new Runnable(){
216	<	public void run(){}
217	<	}, 100, 100, TimeUnit.SECONDS);
218	<	fail("should throw");
219	<	}catch(RejectedExecutionException e){}
220	<	}
221	<
222	<	/**
223	<	*  Test to verify scheduleAtFixedRate(Runnable, long, long, TimeUnit) throws
224	<	*  RejectedExecutionException.
225	<	*  This occurs on an attempt to schedule a task on a shutdown executor
226	<	*/
227	<	public void testScheduleAtFixedRate2_RejectedExecutionException(){
228	<	try{
229	<	ScheduledExecutor se = new ScheduledExecutor(1);
258	>	* schedule throws RejectedExecutionException if shutdown
259	>	*/
260	>	public void testSchedule2_RejectedExecutionException() throws InterruptedException {
261	>	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
262	>	try {
263		se.shutdown();
264	<	se.scheduleAtFixedRate(new Runnable(){
265	<	public void run(){}
266	<	},  1, 100, TimeUnit.SECONDS);
267	<	fail("should throw");
268	<	}catch(RejectedExecutionException e){}
264	>	se.schedule(new NoOpCallable(),
265	>	MEDIUM_DELAY_MS, MILLISECONDS);
266	>	shouldThrow();
267	>	} catch (RejectedExecutionException success) {
268	>	} catch (SecurityException ok) {
269	>	}
270	>	joinPool(se);
271		}
272
273		/**
274	<	*  Test to verify scheduleWithFixedDelay(Runnable, long, long, TimeUnit) throws
240	<	*  RejectedExecutionException.
241	<	*  This occurs on an attempt to schedule a task on a shutdown executor
274	>	* schedule callable throws RejectedExecutionException if shutdown
275		*/
276	<	public void testScheduleWithFixedDelay1_RejectedExecutionException(){
277	<	try{
278	<	ScheduledExecutor se = new ScheduledExecutor(1);
276	>	public void testSchedule3_RejectedExecutionException() throws InterruptedException {
277	>	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
278	>	try {
279		se.shutdown();
280	<	se.scheduleWithFixedDelay(new Runnable(){
281	<	public void run(){}
282	<	}, 100, 100, TimeUnit.SECONDS);
283	<	fail("should throw");
284	<	}catch(RejectedExecutionException e){}
280	>	se.schedule(new NoOpCallable(),
281	>	MEDIUM_DELAY_MS, MILLISECONDS);
282	>	shouldThrow();
283	>	} catch (RejectedExecutionException success) {
284	>	} catch (SecurityException ok) {
285	>	}
286	>	joinPool(se);
287		}
288
289		/**
290	<	*  Test to verify scheduleWithFixedDelay(Runnable, long, long, TimeUnit) throws
256	<	*  RejectedExecutionException.
257	<	*  This occurs on an attempt to schedule a task on a shutdown executor
290	>	* scheduleAtFixedRate throws RejectedExecutionException if shutdown
291		*/
292	<	public void testScheduleWithFixedDelay2_RejectedExecutionException(){
293	<	try{
294	<	ScheduledExecutor se = new ScheduledExecutor(1);
292	>	public void testScheduleAtFixedRate1_RejectedExecutionException() throws InterruptedException {
293	>	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
294	>	try {
295		se.shutdown();
296	<	se.scheduleWithFixedDelay(new Runnable(){
297	<	public void run(){}
298	<	},  1, 100, TimeUnit.SECONDS);
299	<	fail("should throw");
300	<	}catch(RejectedExecutionException e){}
296	>	se.scheduleAtFixedRate(new NoOpRunnable(),
297	>	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS);
298	>	shouldThrow();
299	>	} catch (RejectedExecutionException success) {
300	>	} catch (SecurityException ok) {
301	>	}
302	>	joinPool(se);
303		}
304
305		/**
306	<	*  Test to verify execute throws RejectedExecutionException
272	<	*  This occurs on an attempt to schedule a task on a shutdown executor
306	>	* scheduleWithFixedDelay throws RejectedExecutionException if shutdown
307		*/
308	<	public void testExecute_RejectedExecutionException(){
309	<	try{
310	<	ScheduledExecutor se = new ScheduledExecutor(1);
308	>	public void testScheduleWithFixedDelay1_RejectedExecutionException() throws InterruptedException {
309	>	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
310	>	try {
311		se.shutdown();
312	<	se.execute(new Runnable(){
313	<	public void run(){}
314	<	});
315	<	fail("should throw");
316	<	}catch(RejectedExecutionException e){}
312	>	se.scheduleWithFixedDelay(new NoOpRunnable(),
313	>	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS);
314	>	shouldThrow();
315	>	} catch (RejectedExecutionException success) {
316	>	} catch (SecurityException ok) {
317	>	}
318	>	joinPool(se);
319		}
320
285	–
286	–
321		/**
322	<	*  Test to verify getActiveCount gives correct values
322	>	* getActiveCount increases but doesn't overestimate, when a
323	>	* thread becomes active
324		*/
325	<	public void testGetActiveCount(){
326	<	ScheduledExecutor two = new ScheduledExecutor(2);
325	>	public void testGetActiveCount() throws InterruptedException {
326	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(2);
327	>	final CountDownLatch threadStarted = new CountDownLatch(1);
328	>	final CountDownLatch done = new CountDownLatch(1);
329		try {
330	<	assertEquals(0, two.getActiveCount());
331	<	two.execute(newRunnable());
332	<	try{
333	<	Thread.sleep(SHORT_DELAY_MS/2);
334	<	} catch(Exception e){
335	<	fail("unexpected exception");
336	<	}
337	<	assertEquals(1, two.getActiveCount());
330	>	assertEquals(0, p.getActiveCount());
331	>	p.execute(new CheckedRunnable() {
332	>	public void realRun() throws InterruptedException {
333	>	threadStarted.countDown();
334	>	assertEquals(1, p.getActiveCount());
335	>	done.await();
336	>	}});
337	>	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
338	>	assertEquals(1, p.getActiveCount());
339		} finally {
340	<	two.shutdown();
340	>	done.countDown();
341	>	joinPool(p);
342		}
343		}
344	<
344	>
345		/**
346	<	*  Test to verify getCompleteTaskCount gives correct values
346	>	* getCompletedTaskCount increases, but doesn't overestimate,
347	>	* when tasks complete
348		*/
349	<	public void testGetCompletedTaskCount(){
350	<	ScheduledExecutor two = new ScheduledExecutor(2);
349	>	public void testGetCompletedTaskCount() throws InterruptedException {
350	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(2);
351	>	final CountDownLatch threadStarted = new CountDownLatch(1);
352	>	final CountDownLatch threadProceed = new CountDownLatch(1);
353	>	final CountDownLatch threadDone = new CountDownLatch(1);
354		try {
355	<	assertEquals(0, two.getCompletedTaskCount());
356	<	two.execute(newRunnable());
357	<	try{
358	<	Thread.sleep(MEDIUM_DELAY_MS);
359	<	} catch(Exception e){
360	<	fail("unexpected exception");
355	>	assertEquals(0, p.getCompletedTaskCount());
356	>	p.execute(new CheckedRunnable() {
357	>	public void realRun() throws InterruptedException {
358	>	threadStarted.countDown();
359	>	assertEquals(0, p.getCompletedTaskCount());
360	>	threadProceed.await();
361	>	threadDone.countDown();
362	>	}});
363	>	await(threadStarted);
364	>	assertEquals(0, p.getCompletedTaskCount());
365	>	threadProceed.countDown();
366	>	threadDone.await();
367	>	long startTime = System.nanoTime();
368	>	while (p.getCompletedTaskCount() != 1) {
369	>	if (millisElapsedSince(startTime) > LONG_DELAY_MS)
370	>	fail("timed out");
371	>	Thread.yield();
372		}
319	–	assertEquals(1, two.getCompletedTaskCount());
373		} finally {
374	<	two.shutdown();
374	>	joinPool(p);
375		}
376		}
377	<
377	>
378		/**
379	<	*  Test to verify getCorePoolSize gives correct values
379	>	* getCorePoolSize returns size given in constructor if not otherwise set
380		*/
381	<	public void testGetCorePoolSize(){
382	<	ScheduledExecutor one = new ScheduledExecutor(1);
381	>	public void testGetCorePoolSize() throws InterruptedException {
382	>	ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
383	>	assertEquals(1, p.getCorePoolSize());
384	>	joinPool(p);
385	>	}
386	>
387	>	/**
388	>	* getLargestPoolSize increases, but doesn't overestimate, when
389	>	* multiple threads active
390	>	*/
391	>	public void testGetLargestPoolSize() throws InterruptedException {
392	>	final int THREADS = 3;
393	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(THREADS);
394	>	final CountDownLatch threadsStarted = new CountDownLatch(THREADS);
395	>	final CountDownLatch done = new CountDownLatch(1);
396		try {
397	<	assertEquals(1, one.getCorePoolSize());
397	>	assertEquals(0, p.getLargestPoolSize());
398	>	for (int i = 0; i < THREADS; i++)
399	>	p.execute(new CheckedRunnable() {
400	>	public void realRun() throws InterruptedException {
401	>	threadsStarted.countDown();
402	>	done.await();
403	>	assertEquals(THREADS, p.getLargestPoolSize());
404	>	}});
405	>	assertTrue(threadsStarted.await(SMALL_DELAY_MS, MILLISECONDS));
406	>	assertEquals(THREADS, p.getLargestPoolSize());
407		} finally {
408	<	one.shutdown();
408	>	done.countDown();
409	>	joinPool(p);
410	>	assertEquals(THREADS, p.getLargestPoolSize());
411		}
412		}
413	<
413	>
414		/**
415	<	*  Test to verify getLargestPoolSize gives correct values
415	>	* getPoolSize increases, but doesn't overestimate, when threads
416	>	* become active
417		*/
418	<	public void testGetLargestPoolSize(){
419	<	ScheduledExecutor two = new ScheduledExecutor(2);
418	>	public void testGetPoolSize() throws InterruptedException {
419	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
420	>	final CountDownLatch threadStarted = new CountDownLatch(1);
421	>	final CountDownLatch done = new CountDownLatch(1);
422		try {
423	<	assertEquals(0, two.getLargestPoolSize());
424	<	two.execute(newRunnable());
425	<	two.execute(newRunnable());
426	<	try{
427	<	Thread.sleep(SHORT_DELAY_MS);
428	<	} catch(Exception e){
429	<	fail("unexpected exception");
430	<	}
431	<	assertEquals(2, two.getLargestPoolSize());
423	>	assertEquals(0, p.getPoolSize());
424	>	p.execute(new CheckedRunnable() {
425	>	public void realRun() throws InterruptedException {
426	>	threadStarted.countDown();
427	>	assertEquals(1, p.getPoolSize());
428	>	done.await();
429	>	}});
430	>	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
431	>	assertEquals(1, p.getPoolSize());
432		} finally {
433	<	two.shutdown();
433	>	done.countDown();
434	>	joinPool(p);
435		}
436		}
437	<
437	>
438		/**
439	<	*  Test to verify getPoolSize gives correct values
439	>	* getTaskCount increases, but doesn't overestimate, when tasks
440	>	* submitted
441		*/
442	<	public void testGetPoolSize(){
443	<	ScheduledExecutor one = new ScheduledExecutor(1);
444	<	try {
445	<	assertEquals(0, one.getPoolSize());
446	<	one.execute(newRunnable());
447	<	assertEquals(1, one.getPoolSize());
442	>	public void testGetTaskCount() throws InterruptedException {
443	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
444	>	final CountDownLatch threadStarted = new CountDownLatch(1);
445	>	final CountDownLatch done = new CountDownLatch(1);
446	>	final int TASKS = 5;
447	>	try {
448	>	assertEquals(0, p.getTaskCount());
449	>	for (int i = 0; i < TASKS; i++)
450	>	p.execute(new CheckedRunnable() {
451	>	public void realRun() throws InterruptedException {
452	>	threadStarted.countDown();
453	>	done.await();
454	>	}});
455	>	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
456	>	assertEquals(TASKS, p.getTaskCount());
457		} finally {
458	<	one.shutdown();
458	>	done.countDown();
459	>	joinPool(p);
460		}
461		}
462	<
462	>
463	>	/**
464	>	* getThreadFactory returns factory in constructor if not set
465	>	*/
466	>	public void testGetThreadFactory() throws InterruptedException {
467	>	ThreadFactory tf = new SimpleThreadFactory();
468	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1, tf);
469	>	assertSame(tf, p.getThreadFactory());
470	>	joinPool(p);
471	>	}
472	>
473		/**
474	<	*  Test to verify getTaskCount gives correct values
474	>	* setThreadFactory sets the thread factory returned by getThreadFactory
475		*/
476	<	public void testGetTaskCount(){
477	<	ScheduledExecutor one = new ScheduledExecutor(1);
476	>	public void testSetThreadFactory() throws InterruptedException {
477	>	ThreadFactory tf = new SimpleThreadFactory();
478	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
479	>	p.setThreadFactory(tf);
480	>	assertSame(tf, p.getThreadFactory());
481	>	joinPool(p);
482	>	}
483	>
484	>	/**
485	>	* setThreadFactory(null) throws NPE
486	>	*/
487	>	public void testSetThreadFactoryNull() throws InterruptedException {
488	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
489		try {
490	<	assertEquals(0, one.getTaskCount());
491	<	for(int i = 0; i < 5; i++)
492	<	one.execute(newRunnable());
380	<	try{
381	<	Thread.sleep(SHORT_DELAY_MS);
382	<	} catch(Exception e){
383	<	fail("unexpected exception");
384	<	}
385	<	assertEquals(5, one.getTaskCount());
490	>	p.setThreadFactory(null);
491	>	shouldThrow();
492	>	} catch (NullPointerException success) {
493		} finally {
494	<	one.shutdown();
494	>	joinPool(p);
495		}
496		}
497	<
497	>
498		/**
499	<	*  Test to verify isShutDown gives correct values
499	>	* isShutdown is false before shutdown, true after
500		*/
501	<	public void testIsShutdown(){
502	<
503	<	ScheduledExecutor one = new ScheduledExecutor(1);
501	>	public void testIsShutdown() {
502	>
503	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
504		try {
505	<	assertFalse(one.isShutdown());
505	>	assertFalse(p.isShutdown());
506		}
507		finally {
508	<	one.shutdown();
508	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
509	>	}
510	>	assertTrue(p.isShutdown());
511	>	}
512	>
513	>	/**
514	>	* isTerminated is false before termination, true after
515	>	*/
516	>	public void testIsTerminated() throws InterruptedException {
517	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
518	>	final CountDownLatch threadStarted = new CountDownLatch(1);
519	>	final CountDownLatch done = new CountDownLatch(1);
520	>	assertFalse(p.isTerminated());
521	>	try {
522	>	p.execute(new CheckedRunnable() {
523	>	public void realRun() throws InterruptedException {
524	>	assertFalse(p.isTerminated());
525	>	threadStarted.countDown();
526	>	done.await();
527	>	}});
528	>	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
529	>	assertFalse(p.isTerminating());
530	>	done.countDown();
531	>	} finally {
532	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
533		}
534	<	assertTrue(one.isShutdown());
534	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
535	>	assertTrue(p.isTerminated());
536		}
537
406	–
538		/**
539	<	*  Test to verify isTerminated gives correct values
409	<	*  Makes sure termination does not take an innapropriate
410	<	*  amount of time
539	>	* isTerminating is not true when running or when terminated
540		*/
541	<	public void testIsTerminated(){
542	<	ScheduledExecutor one = new ScheduledExecutor(1);
541	>	public void testIsTerminating() throws InterruptedException {
542	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
543	>	final CountDownLatch threadStarted = new CountDownLatch(1);
544	>	final CountDownLatch done = new CountDownLatch(1);
545		try {
546	<	one.execute(newRunnable());
546	>	assertFalse(p.isTerminating());
547	>	p.execute(new CheckedRunnable() {
548	>	public void realRun() throws InterruptedException {
549	>	assertFalse(p.isTerminating());
550	>	threadStarted.countDown();
551	>	done.await();
552	>	}});
553	>	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
554	>	assertFalse(p.isTerminating());
555	>	done.countDown();
556		} finally {
557	<	one.shutdown();
557	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
558		}
559	<	boolean flag = false;
560	<	try{
561	<	flag = one.awaitTermination(10, TimeUnit.SECONDS);
422	<	} catch(Exception e){
423	<	fail("unexpected exception");
424	<	}
425	<	assertTrue(one.isTerminated());
426	<	if(!flag)
427	<	fail("ThreadPoolExecutor - thread pool did not terminate within suitable timeframe");
559	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
560	>	assertTrue(p.isTerminated());
561	>	assertFalse(p.isTerminating());
562		}
563
564		/**
565	<	*  Test to verify that purge correctly removes cancelled tasks
432	<	*  from the queue
565	>	* getQueue returns the work queue, which contains queued tasks
566		*/
567	<	public void testPurge(){
568	<	ScheduledExecutor one = new ScheduledExecutor(1);
567	>	public void testGetQueue() throws InterruptedException {
568	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
569	>	final CountDownLatch threadStarted = new CountDownLatch(1);
570	>	final CountDownLatch done = new CountDownLatch(1);
571		try {
572	<	ScheduledCancellable[] tasks = new ScheduledCancellable[5];
573	<	for(int i = 0; i < 5; i++){
574	<	tasks[i] = one.schedule(newRunnable(), 1, TimeUnit.MILLISECONDS);
572	>	ScheduledFuture[] tasks = new ScheduledFuture[5];
573	>	for (int i = 0; i < tasks.length; i++) {
574	>	Runnable r = new CheckedRunnable() {
575	>	public void realRun() throws InterruptedException {
576	>	threadStarted.countDown();
577	>	done.await();
578	>	}};
579	>	tasks[i] = p.schedule(r, 1, MILLISECONDS);
580		}
581	<	int max = 5;
581	>	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
582	>	BlockingQueue<Runnable> q = p.getQueue();
583	>	assertTrue(q.contains(tasks[tasks.length - 1]));
584	>	assertFalse(q.contains(tasks[0]));
585	>	} finally {
586	>	done.countDown();
587	>	joinPool(p);
588	>	}
589	>	}
590	>
591	>	/**
592	>	* remove(task) removes queued task, and fails to remove active task
593	>	*/
594	>	public void testRemove() throws InterruptedException {
595	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
596	>	ScheduledFuture[] tasks = new ScheduledFuture[5];
597	>	final CountDownLatch threadStarted = new CountDownLatch(1);
598	>	final CountDownLatch done = new CountDownLatch(1);
599	>	try {
600	>	for (int i = 0; i < tasks.length; i++) {
601	>	Runnable r = new CheckedRunnable() {
602	>	public void realRun() throws InterruptedException {
603	>	threadStarted.countDown();
604	>	done.await();
605	>	}};
606	>	tasks[i] = p.schedule(r, 1, MILLISECONDS);
607	>	}
608	>	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
609	>	BlockingQueue<Runnable> q = p.getQueue();
610	>	assertFalse(p.remove((Runnable)tasks[0]));
611	>	assertTrue(q.contains((Runnable)tasks[4]));
612	>	assertTrue(q.contains((Runnable)tasks[3]));
613	>	assertTrue(p.remove((Runnable)tasks[4]));
614	>	assertFalse(p.remove((Runnable)tasks[4]));
615	>	assertFalse(q.contains((Runnable)tasks[4]));
616	>	assertTrue(q.contains((Runnable)tasks[3]));
617	>	assertTrue(p.remove((Runnable)tasks[3]));
618	>	assertFalse(q.contains((Runnable)tasks[3]));
619	>	} finally {
620	>	done.countDown();
621	>	joinPool(p);
622	>	}
623	>	}
624	>
625	>	/**
626	>	* purge eventually removes cancelled tasks from the queue
627	>	*/
628	>	public void testPurge() throws InterruptedException {
629	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
630	>	ScheduledFuture[] tasks = new ScheduledFuture[5];
631	>	for (int i = 0; i < tasks.length; i++)
632	>	tasks[i] = p.schedule(new SmallPossiblyInterruptedRunnable(),
633	>	LONG_DELAY_MS, MILLISECONDS);
634	>	try {
635	>	int max = tasks.length;
636		if (tasks[4].cancel(true)) --max;
637		if (tasks[3].cancel(true)) --max;
638	<	one.purge();
639	<	long count = one.getTaskCount();
640	<	assertTrue(count > 0 && count <= max);
638	>	// There must eventually be an interference-free point at
639	>	// which purge will not fail. (At worst, when queue is empty.)
640	>	long startTime = System.nanoTime();
641	>	do {
642	>	p.purge();
643	>	long count = p.getTaskCount();
644	>	if (count == max)
645	>	return;
646	>	} while (millisElapsedSince(startTime) < MEDIUM_DELAY_MS);
647	>	fail("Purge failed to remove cancelled tasks");
648		} finally {
649	<	one.shutdown();
649	>	for (ScheduledFuture task : tasks)
650	>	task.cancel(true);
651	>	joinPool(p);
652	>	}
653	>	}
654	>
655	>	/**
656	>	* shutdownNow returns a list containing tasks that were not run,
657	>	* and those tasks are drained from the queue
658	>	*/
659	>	public void testShutdownNow_delayedTasks() throws InterruptedException {
660	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
661	>	List<ScheduledFuture> tasks = new ArrayList<>();
662	>	for (int i = 0; i < 3; i++) {
663	>	Runnable r = new NoOpRunnable();
664	>	tasks.add(p.schedule(r, 9, SECONDS));
665	>	tasks.add(p.scheduleAtFixedRate(r, 9, 9, SECONDS));
666	>	tasks.add(p.scheduleWithFixedDelay(r, 9, 9, SECONDS));
667	>	}
668	>	if (testImplementationDetails)
669	>	assertEquals(new HashSet(tasks), new HashSet(p.getQueue()));
670	>	final List<Runnable> queuedTasks;
671	>	try {
672	>	queuedTasks = p.shutdownNow();
673	>	} catch (SecurityException ok) {
674	>	return; // Allowed in case test doesn't have privs
675	>	}
676	>	assertTrue(p.isShutdown());
677	>	assertTrue(p.getQueue().isEmpty());
678	>	if (testImplementationDetails)
679	>	assertEquals(new HashSet(tasks), new HashSet(queuedTasks));
680	>	assertEquals(tasks.size(), queuedTasks.size());
681	>	for (ScheduledFuture task : tasks) {
682	>	assertFalse(task.isDone());
683	>	assertFalse(task.isCancelled());
684	>	}
685	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
686	>	assertTrue(p.isTerminated());
687	>	}
688	>
689	>	/**
690	>	* In default setting, shutdown cancels periodic but not delayed
691	>	* tasks at shutdown
692	>	*/
693	>	public void testShutdown1() throws InterruptedException {
694	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
695	>	assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
696	>	assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
697	>
698	>	ScheduledFuture[] tasks = new ScheduledFuture[5];
699	>	for (int i = 0; i < tasks.length; i++)
700	>	tasks[i] = p.schedule(new NoOpRunnable(),
701	>	SHORT_DELAY_MS, MILLISECONDS);
702	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
703	>	BlockingQueue<Runnable> q = p.getQueue();
704	>	for (ScheduledFuture task : tasks) {
705	>	assertFalse(task.isDone());
706	>	assertFalse(task.isCancelled());
707	>	assertTrue(q.contains(task));
708	>	}
709	>	assertTrue(p.isShutdown());
710	>	assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS));
711	>	assertTrue(p.isTerminated());
712	>	for (ScheduledFuture task : tasks) {
713	>	assertTrue(task.isDone());
714	>	assertFalse(task.isCancelled());
715	>	}
716	>	}
717	>
718	>	/**
719	>	* If setExecuteExistingDelayedTasksAfterShutdownPolicy is false,
720	>	* delayed tasks are cancelled at shutdown
721	>	*/
722	>	public void testShutdown2() throws InterruptedException {
723	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
724	>	p.setExecuteExistingDelayedTasksAfterShutdownPolicy(false);
725	>	assertFalse(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
726	>	assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
727	>	ScheduledFuture[] tasks = new ScheduledFuture[5];
728	>	for (int i = 0; i < tasks.length; i++)
729	>	tasks[i] = p.schedule(new NoOpRunnable(),
730	>	SHORT_DELAY_MS, MILLISECONDS);
731	>	BlockingQueue q = p.getQueue();
732	>	assertEquals(tasks.length, q.size());
733	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
734	>	assertTrue(p.isShutdown());
735	>	assertTrue(q.isEmpty());
736	>	assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS));
737	>	assertTrue(p.isTerminated());
738	>	for (ScheduledFuture task : tasks) {
739	>	assertTrue(task.isDone());
740	>	assertTrue(task.isCancelled());
741		}
742		}
743
744		/**
745	<	*  Test to verify shutDownNow returns a list
746	<	*  containing the correct number of elements
745	>	* If setContinueExistingPeriodicTasksAfterShutdownPolicy is set false,
746	>	* periodic tasks are cancelled at shutdown
747		*/
748	<	public void testShutDownNow(){
749	<	ScheduledExecutor one = new ScheduledExecutor(1);
750	<	for(int i = 0; i < 5; i++)
751	<	one.schedule(newRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
752	<	List l = one.shutdownNow();
753	<	assertTrue(one.isShutdown());
754	<	assertTrue(l.size() > 0 && l.size() <= 5);
748	>	public void testShutdown3() throws InterruptedException {
749	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
750	>	assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
751	>	assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
752	>	p.setContinueExistingPeriodicTasksAfterShutdownPolicy(false);
753	>	assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
754	>	assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
755	>	long initialDelay = LONG_DELAY_MS;
756	>	ScheduledFuture task =
757	>	p.scheduleAtFixedRate(new NoOpRunnable(), initialDelay,
758	>	5, MILLISECONDS);
759	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
760	>	assertTrue(p.isShutdown());
761	>	assertTrue(p.getQueue().isEmpty());
762	>	assertTrue(task.isDone());
763	>	assertTrue(task.isCancelled());
764	>	joinPool(p);
765		}
766
767	<	public void testShutDown1(){
767	>	/**
768	>	* if setContinueExistingPeriodicTasksAfterShutdownPolicy is true,
769	>	* periodic tasks are not cancelled at shutdown
770	>	*/
771	>	public void testShutdown4() throws InterruptedException {
772	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
773	>	final CountDownLatch counter = new CountDownLatch(2);
774		try {
775	<	ScheduledExecutor one = new ScheduledExecutor(1);
776	<	assertTrue(one.getExecuteExistingDelayedTasksAfterShutdownPolicy());
777	<	assertFalse(one.getContinueExistingPeriodicTasksAfterShutdownPolicy());
775	>	p.setContinueExistingPeriodicTasksAfterShutdownPolicy(true);
776	>	assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
777	>	assertTrue(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
778	>	final Runnable r = new CheckedRunnable() {
779	>	public void realRun() {
780	>	counter.countDown();
781	>	}};
782	>	ScheduledFuture task =
783	>	p.scheduleAtFixedRate(r, 1, 1, MILLISECONDS);
784	>	assertFalse(task.isDone());
785	>	assertFalse(task.isCancelled());
786	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
787	>	assertFalse(task.isCancelled());
788	>	assertFalse(p.isTerminated());
789	>	assertTrue(p.isShutdown());
790	>	assertTrue(counter.await(SMALL_DELAY_MS, MILLISECONDS));
791	>	assertFalse(task.isCancelled());
792	>	assertTrue(task.cancel(false));
793	>	assertTrue(task.isDone());
794	>	assertTrue(task.isCancelled());
795	>	assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS));
796	>	assertTrue(p.isTerminated());
797	>	}
798	>	finally {
799	>	joinPool(p);
800	>	}
801	>	}
802
803	<	ScheduledCancellable[] tasks = new ScheduledCancellable[5];
804	<	for(int i = 0; i < 5; i++)
805	<	tasks[i] = one.schedule(newNoopRunnable(), SHORT_DELAY_MS/2, TimeUnit.MILLISECONDS);
806	<	one.shutdown();
807	<	BlockingQueue q = one.getQueue();
808	<	for (Iterator it = q.iterator(); it.hasNext();) {
809	<	ScheduledCancellable t = (ScheduledCancellable)it.next();
810	<	assertFalse(t.isCancelled());
811	<	}
812	<	assertTrue(one.isShutdown());
813	<	Thread.sleep(SHORT_DELAY_MS);
814	<	for (int i = 0; i < 5; ++i) {
815	<	assertTrue(tasks[i].isDone());
816	<	assertFalse(tasks[i].isCancelled());
817	<	}
818	<
803	>	/**
804	>	* completed submit of callable returns result
805	>	*/
806	>	public void testSubmitCallable() throws Exception {
807	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
808	>	try {
809	>	Future<String> future = e.submit(new StringTask());
810	>	String result = future.get();
811	>	assertSame(TEST_STRING, result);
812	>	} finally {
813	>	joinPool(e);
814	>	}
815	>	}
816	>
817	>	/**
818	>	* completed submit of runnable returns successfully
819	>	*/
820	>	public void testSubmitRunnable() throws Exception {
821	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
822	>	try {
823	>	Future<?> future = e.submit(new NoOpRunnable());
824	>	future.get();
825	>	assertTrue(future.isDone());
826	>	} finally {
827	>	joinPool(e);
828	>	}
829	>	}
830	>
831	>	/**
832	>	* completed submit of (runnable, result) returns result
833	>	*/
834	>	public void testSubmitRunnable2() throws Exception {
835	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
836	>	try {
837	>	Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING);
838	>	String result = future.get();
839	>	assertSame(TEST_STRING, result);
840	>	} finally {
841	>	joinPool(e);
842		}
843	<	catch(Exception ex) {
844	<	fail("unexpected exception");
843	>	}
844	>
845	>	/**
846	>	* invokeAny(null) throws NPE
847	>	*/
848	>	public void testInvokeAny1() throws Exception {
849	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
850	>	try {
851	>	e.invokeAny(null);
852	>	shouldThrow();
853	>	} catch (NullPointerException success) {
854	>	} finally {
855	>	joinPool(e);
856		}
857		}
858
859	+	/**
860	+	* invokeAny(empty collection) throws IAE
861	+	*/
862	+	public void testInvokeAny2() throws Exception {
863	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
864	+	try {
865	+	e.invokeAny(new ArrayList<Callable<String>>());
866	+	shouldThrow();
867	+	} catch (IllegalArgumentException success) {
868	+	} finally {
869	+	joinPool(e);
870	+	}
871	+	}
872
873	<	public void testShutDown2(){
873	>	/**
874	>	* invokeAny(c) throws NPE if c has null elements
875	>	*/
876	>	public void testInvokeAny3() throws Exception {
877	>	CountDownLatch latch = new CountDownLatch(1);
878	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
879	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
880	>	l.add(latchAwaitingStringTask(latch));
881	>	l.add(null);
882		try {
883	<	ScheduledExecutor one = new ScheduledExecutor(1);
884	<	one.setExecuteExistingDelayedTasksAfterShutdownPolicy(false);
885	<	ScheduledCancellable[] tasks = new ScheduledCancellable[5];
886	<	for(int i = 0; i < 5; i++)
887	<	tasks[i] = one.schedule(newNoopRunnable(), SHORT_DELAY_MS/2, TimeUnit.MILLISECONDS);
888	<	one.shutdown();
502	<	assertTrue(one.isShutdown());
503	<	BlockingQueue q = one.getQueue();
504	<	assertTrue(q.isEmpty());
505	<	Thread.sleep(SHORT_DELAY_MS);
506	<	assertTrue(one.isTerminated());
883	>	e.invokeAny(l);
884	>	shouldThrow();
885	>	} catch (NullPointerException success) {
886	>	} finally {
887	>	latch.countDown();
888	>	joinPool(e);
889		}
890	<	catch(Exception ex) {
891	<	fail("unexpected exception");
890	>	}
891	>
892	>	/**
893	>	* invokeAny(c) throws ExecutionException if no task completes
894	>	*/
895	>	public void testInvokeAny4() throws Exception {
896	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
897	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
898	>	l.add(new NPETask());
899	>	try {
900	>	e.invokeAny(l);
901	>	shouldThrow();
902	>	} catch (ExecutionException success) {
903	>	assertTrue(success.getCause() instanceof NullPointerException);
904	>	} finally {
905	>	joinPool(e);
906		}
907		}
908
909	+	/**
910	+	* invokeAny(c) returns result of some task
911	+	*/
912	+	public void testInvokeAny5() throws Exception {
913	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
914	+	try {
915	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
916	+	l.add(new StringTask());
917	+	l.add(new StringTask());
918	+	String result = e.invokeAny(l);
919	+	assertSame(TEST_STRING, result);
920	+	} finally {
921	+	joinPool(e);
922	+	}
923	+	}
924
925	<	public void testShutDown3(){
925	>	/**
926	>	* invokeAll(null) throws NPE
927	>	*/
928	>	public void testInvokeAll1() throws Exception {
929	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
930		try {
931	<	ScheduledExecutor one = new ScheduledExecutor(1);
932	<	one.setContinueExistingPeriodicTasksAfterShutdownPolicy(false);
933	<	ScheduledCancellable task =
934	<	one.scheduleAtFixedRate(newNoopRunnable(), 5, 5, TimeUnit.MILLISECONDS);
935	<	one.shutdown();
521	<	assertTrue(one.isShutdown());
522	<	BlockingQueue q = one.getQueue();
523	<	assertTrue(q.isEmpty());
524	<	Thread.sleep(SHORT_DELAY_MS);
525	<	assertTrue(one.isTerminated());
931	>	e.invokeAll(null);
932	>	shouldThrow();
933	>	} catch (NullPointerException success) {
934	>	} finally {
935	>	joinPool(e);
936		}
937	<	catch(Exception ex) {
938	<	fail("unexpected exception");
937	>	}
938	>
939	>	/**
940	>	* invokeAll(empty collection) returns empty collection
941	>	*/
942	>	public void testInvokeAll2() throws Exception {
943	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
944	>	try {
945	>	List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>());
946	>	assertTrue(r.isEmpty());
947	>	} finally {
948	>	joinPool(e);
949		}
950		}
951
952	<	public void testShutDown4(){
953	<	ScheduledExecutor one = new ScheduledExecutor(1);
952	>	/**
953	>	* invokeAll(c) throws NPE if c has null elements
954	>	*/
955	>	public void testInvokeAll3() throws Exception {
956	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
957	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
958	>	l.add(new StringTask());
959	>	l.add(null);
960		try {
961	<	one.setContinueExistingPeriodicTasksAfterShutdownPolicy(true);
962	<	ScheduledCancellable task =
963	<	one.scheduleAtFixedRate(newNoopRunnable(), 5, 5, TimeUnit.MILLISECONDS);
964	<	assertFalse(task.isCancelled());
965	<	one.shutdown();
540	<	assertFalse(task.isCancelled());
541	<	assertFalse(one.isTerminated());
542	<	assertTrue(one.isShutdown());
543	<	Thread.sleep(SHORT_DELAY_MS);
544	<	assertFalse(task.isCancelled());
545	<	task.cancel(true);
546	<	assertTrue(task.isCancelled());
547	<	Thread.sleep(SHORT_DELAY_MS);
548	<	assertTrue(one.isTerminated());
961	>	e.invokeAll(l);
962	>	shouldThrow();
963	>	} catch (NullPointerException success) {
964	>	} finally {
965	>	joinPool(e);
966		}
967	<	catch(Exception ex) {
968	<	fail("unexpected exception");
967	>	}
968	>
969	>	/**
970	>	* get of invokeAll(c) throws exception on failed task
971	>	*/
972	>	public void testInvokeAll4() throws Exception {
973	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
974	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
975	>	l.add(new NPETask());
976	>	List<Future<String>> futures = e.invokeAll(l);
977	>	assertEquals(1, futures.size());
978	>	try {
979	>	futures.get(0).get();
980	>	shouldThrow();
981	>	} catch (ExecutionException success) {
982	>	assertTrue(success.getCause() instanceof NullPointerException);
983	>	} finally {
984	>	joinPool(e);
985		}
986	<	finally {
987	<	one.shutdownNow();
986	>	}
987	>
988	>	/**
989	>	* invokeAll(c) returns results of all completed tasks
990	>	*/
991	>	public void testInvokeAll5() throws Exception {
992	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
993	>	try {
994	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
995	>	l.add(new StringTask());
996	>	l.add(new StringTask());
997	>	List<Future<String>> futures = e.invokeAll(l);
998	>	assertEquals(2, futures.size());
999	>	for (Future<String> future : futures)
1000	>	assertSame(TEST_STRING, future.get());
1001	>	} finally {
1002	>	joinPool(e);
1003	>	}
1004	>	}
1005	>
1006	>	/**
1007	>	* timed invokeAny(null) throws NPE
1008	>	*/
1009	>	public void testTimedInvokeAny1() throws Exception {
1010	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1011	>	try {
1012	>	e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS);
1013	>	shouldThrow();
1014	>	} catch (NullPointerException success) {
1015	>	} finally {
1016	>	joinPool(e);
1017	>	}
1018	>	}
1019	>
1020	>	/**
1021	>	* timed invokeAny(,,null) throws NPE
1022	>	*/
1023	>	public void testTimedInvokeAnyNullTimeUnit() throws Exception {
1024	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1025	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1026	>	l.add(new StringTask());
1027	>	try {
1028	>	e.invokeAny(l, MEDIUM_DELAY_MS, null);
1029	>	shouldThrow();
1030	>	} catch (NullPointerException success) {
1031	>	} finally {
1032	>	joinPool(e);
1033	>	}
1034	>	}
1035	>
1036	>	/**
1037	>	* timed invokeAny(empty collection) throws IAE
1038	>	*/
1039	>	public void testTimedInvokeAny2() throws Exception {
1040	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1041	>	try {
1042	>	e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
1043	>	shouldThrow();
1044	>	} catch (IllegalArgumentException success) {
1045	>	} finally {
1046	>	joinPool(e);
1047	>	}
1048	>	}
1049	>
1050	>	/**
1051	>	* timed invokeAny(c) throws NPE if c has null elements
1052	>	*/
1053	>	public void testTimedInvokeAny3() throws Exception {
1054	>	CountDownLatch latch = new CountDownLatch(1);
1055	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1056	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1057	>	l.add(latchAwaitingStringTask(latch));
1058	>	l.add(null);
1059	>	try {
1060	>	e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1061	>	shouldThrow();
1062	>	} catch (NullPointerException success) {
1063	>	} finally {
1064	>	latch.countDown();
1065	>	joinPool(e);
1066	>	}
1067	>	}
1068	>
1069	>	/**
1070	>	* timed invokeAny(c) throws ExecutionException if no task completes
1071	>	*/
1072	>	public void testTimedInvokeAny4() throws Exception {
1073	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1074	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1075	>	l.add(new NPETask());
1076	>	try {
1077	>	e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1078	>	shouldThrow();
1079	>	} catch (ExecutionException success) {
1080	>	assertTrue(success.getCause() instanceof NullPointerException);
1081	>	} finally {
1082	>	joinPool(e);
1083	>	}
1084	>	}
1085	>
1086	>	/**
1087	>	* timed invokeAny(c) returns result of some task
1088	>	*/
1089	>	public void testTimedInvokeAny5() throws Exception {
1090	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1091	>	try {
1092	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1093	>	l.add(new StringTask());
1094	>	l.add(new StringTask());
1095	>	String result = e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1096	>	assertSame(TEST_STRING, result);
1097	>	} finally {
1098	>	joinPool(e);
1099	>	}
1100	>	}
1101	>
1102	>	/**
1103	>	* timed invokeAll(null) throws NPE
1104	>	*/
1105	>	public void testTimedInvokeAll1() throws Exception {
1106	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1107	>	try {
1108	>	e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS);
1109	>	shouldThrow();
1110	>	} catch (NullPointerException success) {
1111	>	} finally {
1112	>	joinPool(e);
1113	>	}
1114	>	}
1115	>
1116	>	/**
1117	>	* timed invokeAll(,,null) throws NPE
1118	>	*/
1119	>	public void testTimedInvokeAllNullTimeUnit() throws Exception {
1120	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1121	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1122	>	l.add(new StringTask());
1123	>	try {
1124	>	e.invokeAll(l, MEDIUM_DELAY_MS, null);
1125	>	shouldThrow();
1126	>	} catch (NullPointerException success) {
1127	>	} finally {
1128	>	joinPool(e);
1129	>	}
1130	>	}
1131	>
1132	>	/**
1133	>	* timed invokeAll(empty collection) returns empty collection
1134	>	*/
1135	>	public void testTimedInvokeAll2() throws Exception {
1136	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1137	>	try {
1138	>	List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
1139	>	assertTrue(r.isEmpty());
1140	>	} finally {
1141	>	joinPool(e);
1142	>	}
1143	>	}
1144	>
1145	>	/**
1146	>	* timed invokeAll(c) throws NPE if c has null elements
1147	>	*/
1148	>	public void testTimedInvokeAll3() throws Exception {
1149	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1150	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1151	>	l.add(new StringTask());
1152	>	l.add(null);
1153	>	try {
1154	>	e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1155	>	shouldThrow();
1156	>	} catch (NullPointerException success) {
1157	>	} finally {
1158	>	joinPool(e);
1159	>	}
1160	>	}
1161	>
1162	>	/**
1163	>	* get of element of invokeAll(c) throws exception on failed task
1164	>	*/
1165	>	public void testTimedInvokeAll4() throws Exception {
1166	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1167	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1168	>	l.add(new NPETask());
1169	>	List<Future<String>> futures =
1170	>	e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1171	>	assertEquals(1, futures.size());
1172	>	try {
1173	>	futures.get(0).get();
1174	>	shouldThrow();
1175	>	} catch (ExecutionException success) {
1176	>	assertTrue(success.getCause() instanceof NullPointerException);
1177	>	} finally {
1178	>	joinPool(e);
1179	>	}
1180	>	}
1181	>
1182	>	/**
1183	>	* timed invokeAll(c) returns results of all completed tasks
1184	>	*/
1185	>	public void testTimedInvokeAll5() throws Exception {
1186	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1187	>	try {
1188	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1189	>	l.add(new StringTask());
1190	>	l.add(new StringTask());
1191	>	List<Future<String>> futures =
1192	>	e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1193	>	assertEquals(2, futures.size());
1194	>	for (Future<String> future : futures)
1195	>	assertSame(TEST_STRING, future.get());
1196	>	} finally {
1197	>	joinPool(e);
1198	>	}
1199	>	}
1200	>
1201	>	/**
1202	>	* timed invokeAll(c) cancels tasks not completed by timeout
1203	>	*/
1204	>	public void testTimedInvokeAll6() throws Exception {
1205	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1206	>	try {
1207	>	for (long timeout = timeoutMillis();;) {
1208	>	List<Callable<String>> tasks = new ArrayList<>();
1209	>	tasks.add(new StringTask("0"));
1210	>	tasks.add(Executors.callable(new LongPossiblyInterruptedRunnable(), TEST_STRING));
1211	>	tasks.add(new StringTask("2"));
1212	>	long startTime = System.nanoTime();
1213	>	List<Future<String>> futures =
1214	>	e.invokeAll(tasks, timeout, MILLISECONDS);
1215	>	assertEquals(tasks.size(), futures.size());
1216	>	assertTrue(millisElapsedSince(startTime) >= timeout);
1217	>	for (Future future : futures)
1218	>	assertTrue(future.isDone());
1219	>	assertTrue(futures.get(1).isCancelled());
1220	>	try {
1221	>	assertEquals("0", futures.get(0).get());
1222	>	assertEquals("2", futures.get(2).get());
1223	>	break;
1224	>	} catch (CancellationException retryWithLongerTimeout) {
1225	>	timeout *= 2;
1226	>	if (timeout >= LONG_DELAY_MS / 2)
1227	>	fail("expected exactly one task to be cancelled");
1228	>	}
1229	>	}
1230	>	} finally {
1231	>	joinPool(e);
1232		}
1233		}
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