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

Comparing jsr166/src/test/tck/ScheduledExecutorTest.java (file contents):
Revision 1.6 by dl, Thu Sep 25 11:02:41 2003 UTC vs.
Revision 1.64 by jsr166, Mon Oct 5 20:45:41 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	<	}
63	<	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		/**
77	<	* execute successfully executes a runnable
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	>	}
95	>
96	>	/**
97	>	* scheduleAtFixedRate executes runnable after given initial delay
98		*/
99	<	public void testExecute() {
100	<	try {
101	<	MyRunnable runnable =new MyRunnable();
102	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
103	<	p1.execute(runnable);
104	<	assertFalse(runnable.done);
105	<	Thread.sleep(SHORT_DELAY_MS);
106	<	p1.shutdown();
107	<	try {
108	<	Thread.sleep(MEDIUM_DELAY_MS);
109	<	} catch(InterruptedException e){
110	<	unexpectedException();
111	<	}
112	<	assertTrue(runnable.done);
113	<	p1.shutdown();
114	<	joinPool(p1);
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	<	catch(Exception e){
117	<	unexpectedException();
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		}
66	–
138		}
139
140	+	static class RunnableCounter implements Runnable {
141	+	AtomicInteger count = new AtomicInteger(0);
142	+	public void run() { count.getAndIncrement(); }
143	+	}
144
145		/**
146	<	* delayed schedule of callable successfully executes after delay
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	>	* scheduleWithFixedDelay executes series of tasks with given period
173		*/
174	<	public void testSchedule1() {
175	<	try {
176	<	MyCallable callable = new MyCallable();
177	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
178	<	Future f = p1.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
179	<	assertFalse(callable.done);
180	<	Thread.sleep(MEDIUM_DELAY_MS);
181	<	assertTrue(callable.done);
182	<	assertEquals(Boolean.TRUE, f.get());
183	<	p1.shutdown();
184	<	joinPool(p1);
185	<	} catch(RejectedExecutionException e){}
186	<	catch(Exception e){
187	<	unexpectedException();
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
197		/**
198	<	*  delayed schedule of runnable successfully executes after delay
199	<	*/
200	<	public void testSchedule3() {
201	<	try {
202	<	MyRunnable runnable = new MyRunnable();
203	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
204	<	p1.schedule(runnable, SMALL_DELAY_MS, TimeUnit.MILLISECONDS);
205	<	Thread.sleep(SHORT_DELAY_MS);
206	<	assertFalse(runnable.done);
100	<	Thread.sleep(MEDIUM_DELAY_MS);
101	<	assertTrue(runnable.done);
102	<	p1.shutdown();
103	<	joinPool(p1);
104	<	} catch(Exception e){
105	<	unexpectedException();
198	>	* execute(null) throws NPE
199	>	*/
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		}
209	<
209	>
210		/**
211	<	* scheduleAtFixedRate executes runnable after given initial delay
211	>	* schedule(null) throws NPE
212		*/
213	<	public void testSchedule4() {
214	<	try {
215	<	MyRunnable runnable = new MyRunnable();
216	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
217	<	ScheduledCancellable h = p1.scheduleAtFixedRate(runnable, SHORT_DELAY_MS, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
218	<	assertFalse(runnable.done);
219	<	Thread.sleep(MEDIUM_DELAY_MS);
220	<	assertTrue(runnable.done);
120	<	h.cancel(true);
121	<	p1.shutdown();
122	<	joinPool(p1);
123	<	} catch(Exception e){
124	<	unexpectedException();
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		}
223
224		/**
225	<	* scheduleWithFixedDelay executes runnable after given initial delay
225	>	* execute throws RejectedExecutionException if shutdown
226		*/
227	<	public void testSchedule5() {
228	<	try {
229	<	MyRunnable runnable = new MyRunnable();
230	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
231	<	ScheduledCancellable h = p1.scheduleWithFixedDelay(runnable, SHORT_DELAY_MS, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
232	<	assertFalse(runnable.done);
233	<	Thread.sleep(MEDIUM_DELAY_MS);
234	<	assertTrue(runnable.done);
235	<	h.cancel(true);
236	<	p1.shutdown();
141	<	joinPool(p1);
142	<	} catch(Exception e){
143	<	unexpectedException();
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	<
239	>
240		/**
241	<	*  execute (null) throws NPE
241	>	* schedule throws RejectedExecutionException if shutdown
242		*/
243	<	public void testExecuteNull() {
244	<	ScheduledExecutor se = null;
245	<	try {
246	<	se = new ScheduledExecutor(1);
247	<	se.execute(null);
248	<	shouldThrow();
249	<	} catch(NullPointerException success){}
250	<	catch(Exception e){
251	<	unexpectedException();
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		}
160	–
161	–	joinPool(se);
254		}
255
256		/**
257	<	* schedule (null) throws NPE
257	>	* schedule callable throws RejectedExecutionException if shutdown
258		*/
259	<	public void testScheduleNull() {
260	<	ScheduledExecutor se = new ScheduledExecutor(1);
261	<	try {
262	<	MyCallable callable = null;
263	<	Future f = se.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
264	<	shouldThrow();
265	<	} catch(NullPointerException success){}
266	<	catch(Exception e){
267	<	unexpectedException();
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		}
177	–	joinPool(se);
270		}
271	<
271	>
272		/**
273	<	* execute throws RejectedExecutionException if shutdown
273	>	* scheduleAtFixedRate throws RejectedExecutionException if shutdown
274		*/
275	<	public void testSchedule1_RejectedExecutionException() {
276	<	ScheduledExecutor se = new ScheduledExecutor(1);
277	<	try {
278	<	se.shutdown();
279	<	se.schedule(new NoOpRunnable(),
280	<	MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
281	<	shouldThrow();
282	<	} catch(RejectedExecutionException success){
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	<	joinPool(se);
286	>	}
287
288	+	/**
289	+	* scheduleWithFixedDelay throws RejectedExecutionException if shutdown
290	+	*/
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	<	* schedule throws RejectedExecutionException if shutdown
305	>	* getActiveCount increases but doesn't overestimate, when a
306	>	* thread becomes active
307	>	*/
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	>	* getCompletedTaskCount increases, but doesn't overestimate,
328	>	* when tasks complete
329	>	*/
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	>	* getCorePoolSize returns size given in constructor if not otherwise set
359		*/
360	<	public void testSchedule2_RejectedExecutionException() {
361	<	ScheduledExecutor se = new ScheduledExecutor(1);
362	<	try {
363	<	se.shutdown();
203	<	se.schedule(new NoOpCallable(),
204	<	MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
205	<	shouldThrow();
206	<	} catch(RejectedExecutionException success){
360	>	public void testGetCorePoolSize() throws InterruptedException {
361	>	ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
362	>	try (PoolCleaner cleaner = cleaner(p)) {
363	>	assertEquals(1, p.getCorePoolSize());
364		}
208	–	joinPool(se);
365		}
366
367		/**
368	<	* schedule callable throws RejectedExecutionException if shutdown
368	>	* getLargestPoolSize increases, but doesn't overestimate, when
369	>	* multiple threads active
370		*/
371	<	public void testSchedule3_RejectedExecutionException() {
372	<	ScheduledExecutor se = new ScheduledExecutor(1);
373	<	try {
374	<	se.shutdown();
375	<	se.schedule(new NoOpCallable(),
376	<	MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
377	<	shouldThrow();
378	<	} catch(RejectedExecutionException success){
379	<	}
380	<	joinPool(se);
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(THREADS, p.getLargestPoolSize());
390		}
391
392		/**
393	<	*  scheduleAtFixedRate throws RejectedExecutionException if shutdown
393	>	* getPoolSize increases, but doesn't overestimate, when threads
394	>	* become active
395		*/
396	<	public void testScheduleAtFixedRate1_RejectedExecutionException() {
397	<	ScheduledExecutor se = new ScheduledExecutor(1);
398	<	try {
399	<	se.shutdown();
400	<	se.scheduleAtFixedRate(new NoOpRunnable(),
401	<	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
402	<	shouldThrow();
403	<	} catch(RejectedExecutionException success){
404	<	}
405	<	joinPool(se);
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	>	}
412		}
413	<
413	>
414		/**
415	<	* scheduleWithFixedDelay throws RejectedExecutionException if shutdown
415	>	* getTaskCount increases, but doesn't overestimate, when tasks
416	>	* submitted
417		*/
418	<	public void testScheduleWithFixedDelay1_RejectedExecutionException() {
419	<	ScheduledExecutor se = new ScheduledExecutor(1);
420	<	try {
421	<	se.shutdown();
422	<	se.scheduleWithFixedDelay(new NoOpRunnable(),
423	<	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
424	<	shouldThrow();
425	<	} catch(RejectedExecutionException success){
426	<	}
427	<	joinPool(se);
418	>	public void testGetTaskCount() throws InterruptedException {
419	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
420	>	try (PoolCleaner cleaner = cleaner(p)) {
421	>	final CountDownLatch threadStarted = new CountDownLatch(1);
422	>	final CountDownLatch done = new CountDownLatch(1);
423	>	final int TASKS = 5;
424	>	assertEquals(0, p.getTaskCount());
425	>	for (int i = 0; i < TASKS; i++)
426	>	p.execute(new CheckedRunnable() {
427	>	public void realRun() throws InterruptedException {
428	>	threadStarted.countDown();
429	>	done.await();
430	>	}});
431	>	assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
432	>	assertEquals(TASKS, p.getTaskCount());
433	>	done.countDown();
434	>	}
435		}
436
437		/**
438	<	*  getActiveCount increases but doesn't overestimate, when a
439	<	*  thread becomes active
440	<	*/
441	<	public void testGetActiveCount() {
442	<	ScheduledExecutor p2 = new ScheduledExecutor(2);
443	<	assertEquals(0, p2.getActiveCount());
444	<	p2.execute(new SmallRunnable());
445	<	try {
265	<	Thread.sleep(SHORT_DELAY_MS);
266	<	} catch(Exception e){
267	<	unexpectedException();
268	<	}
269	<	assertEquals(1, p2.getActiveCount());
270	<	joinPool(p2);
271	<	}
272	<
273	<	/**
274	<	*    getCompletedTaskCount increases, but doesn't overestimate,
275	<	*   when tasks complete
276	<	*/
277	<	public void testGetCompletedTaskCount() {
278	<	ScheduledExecutor p2 = new ScheduledExecutor(2);
279	<	assertEquals(0, p2.getCompletedTaskCount());
280	<	p2.execute(new SmallRunnable());
281	<	try {
282	<	Thread.sleep(MEDIUM_DELAY_MS);
283	<	} catch(Exception e){
284	<	unexpectedException();
438	>	* getThreadFactory returns factory in constructor if not set
439	>	*/
440	>	public void testGetThreadFactory() throws InterruptedException {
441	>	final ThreadFactory threadFactory = new SimpleThreadFactory();
442	>	final ScheduledThreadPoolExecutor p =
443	>	new ScheduledThreadPoolExecutor(1, threadFactory);
444	>	try (PoolCleaner cleaner = cleaner(p)) {
445	>	assertSame(threadFactory, p.getThreadFactory());
446		}
286	–	assertEquals(1, p2.getCompletedTaskCount());
287	–	joinPool(p2);
447		}
448	<
448	>
449		/**
450	<	*  getCorePoolSize returns size given in constructor if not otherwise set
450	>	* setThreadFactory sets the thread factory returned by getThreadFactory
451		*/
452	<	public void testGetCorePoolSize() {
453	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
454	<	assertEquals(1, p1.getCorePoolSize());
455	<	joinPool(p1);
452	>	public void testSetThreadFactory() throws InterruptedException {
453	>	ThreadFactory threadFactory = new SimpleThreadFactory();
454	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
455	>	try (PoolCleaner cleaner = cleaner(p)) {
456	>	p.setThreadFactory(threadFactory);
457	>	assertSame(threadFactory, p.getThreadFactory());
458	>	}
459		}
460	<
460	>
461		/**
462	<	*    getLargestPoolSize increases, but doesn't overestimate, when
301	<	*   multiple threads active
462	>	* setThreadFactory(null) throws NPE
463		*/
464	<	public void testGetLargestPoolSize() {
465	<	ScheduledExecutor p2 = new ScheduledExecutor(2);
466	<	assertEquals(0, p2.getLargestPoolSize());
467	<	p2.execute(new SmallRunnable());
468	<	p2.execute(new SmallRunnable());
469	<	try {
470	<	Thread.sleep(SHORT_DELAY_MS);
310	<	} catch(Exception e){
311	<	unexpectedException();
312	<	}
313	<	assertEquals(2, p2.getLargestPoolSize());
314	<	joinPool(p2);
315	<	}
316	<
317	<	/**
318	<	*   getPoolSize increases, but doesn't overestimate, when threads
319	<	*   become active
320	<	*/
321	<	public void testGetPoolSize() {
322	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
323	<	assertEquals(0, p1.getPoolSize());
324	<	p1.execute(new SmallRunnable());
325	<	assertEquals(1, p1.getPoolSize());
326	<	joinPool(p1);
327	<	}
328	<
329	<	/**
330	<	*    getTaskCount increases, but doesn't overestimate, when tasks
331	<	*    submitted
332	<	*/
333	<	public void testGetTaskCount() {
334	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
335	<	assertEquals(0, p1.getTaskCount());
336	<	for(int i = 0; i < 5; i++)
337	<	p1.execute(new SmallRunnable());
338	<	try {
339	<	Thread.sleep(SHORT_DELAY_MS);
340	<	} catch(Exception e){
341	<	unexpectedException();
464	>	public void testSetThreadFactoryNull() throws InterruptedException {
465	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
466	>	try (PoolCleaner cleaner = cleaner(p)) {
467	>	try {
468	>	p.setThreadFactory(null);
469	>	shouldThrow();
470	>	} catch (NullPointerException success) {}
471		}
343	–	assertEquals(5, p1.getTaskCount());
344	–	joinPool(p1);
472		}
473	<
473	>
474		/**
475	<	*   is isShutDown is false before shutdown, true after
475	>	* isShutdown is false before shutdown, true after
476		*/
477		public void testIsShutdown() {
478	<
479	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
478	>
479	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
480		try {
481	<	assertFalse(p1.isShutdown());
481	>	assertFalse(p.isShutdown());
482		}
483		finally {
484	<	p1.shutdown();
484	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
485		}
486	<	assertTrue(p1.isShutdown());
486	>	assertTrue(p.isShutdown());
487		}
488
362	–
489		/**
490	<	*   isTerminated is false before termination, true after
490	>	* isTerminated is false before termination, true after
491		*/
492	<	public void testIsTerminated() {
493	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
492	>	public void testIsTerminated() throws InterruptedException {
493	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
494	>	try (PoolCleaner cleaner = cleaner(p)) {
495	>	final CountDownLatch threadStarted = new CountDownLatch(1);
496	>	final CountDownLatch done = new CountDownLatch(1);
497	>	assertFalse(p.isTerminated());
498	>	p.execute(new CheckedRunnable() {
499	>	public void realRun() throws InterruptedException {
500	>	assertFalse(p.isTerminated());
501	>	threadStarted.countDown();
502	>	done.await();
503	>	}});
504	>	assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
505	>	assertFalse(p.isTerminating());
506	>	done.countDown();
507	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
508	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
509	>	assertTrue(p.isTerminated());
510	>	}
511	>	}
512	>
513	>	/**
514	>	* isTerminating is not true when running or when terminated
515	>	*/
516	>	public void testIsTerminating() throws InterruptedException {
517	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
518	>	final CountDownLatch threadStarted = new CountDownLatch(1);
519	>	final CountDownLatch done = new CountDownLatch(1);
520	>	try (PoolCleaner cleaner = cleaner(p)) {
521	>	assertFalse(p.isTerminating());
522	>	p.execute(new CheckedRunnable() {
523	>	public void realRun() throws InterruptedException {
524	>	assertFalse(p.isTerminating());
525	>	threadStarted.countDown();
526	>	done.await();
527	>	}});
528	>	assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
529	>	assertFalse(p.isTerminating());
530	>	done.countDown();
531	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
532	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
533	>	assertTrue(p.isTerminated());
534	>	assertFalse(p.isTerminating());
535	>	}
536	>	}
537	>
538	>	/**
539	>	* getQueue returns the work queue, which contains queued tasks
540	>	*/
541	>	public void testGetQueue() throws InterruptedException {
542	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
543	>	try (PoolCleaner cleaner = cleaner(p)) {
544	>	final CountDownLatch threadStarted = new CountDownLatch(1);
545	>	final CountDownLatch done = new CountDownLatch(1);
546	>	ScheduledFuture[] tasks = new ScheduledFuture[5];
547	>	for (int i = 0; i < tasks.length; i++) {
548	>	Runnable r = new CheckedRunnable() {
549	>	public void realRun() throws InterruptedException {
550	>	threadStarted.countDown();
551	>	done.await();
552	>	}};
553	>	tasks[i] = p.schedule(r, 1, MILLISECONDS);
554	>	}
555	>	assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
556	>	BlockingQueue<Runnable> q = p.getQueue();
557	>	assertTrue(q.contains(tasks[tasks.length - 1]));
558	>	assertFalse(q.contains(tasks[0]));
559	>	done.countDown();
560	>	}
561	>	}
562	>
563	>	/**
564	>	* remove(task) removes queued task, and fails to remove active task
565	>	*/
566	>	public void testRemove() throws InterruptedException {
567	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
568	>	try (PoolCleaner cleaner = cleaner(p)) {
569	>	ScheduledFuture[] tasks = new ScheduledFuture[5];
570	>	final CountDownLatch threadStarted = new CountDownLatch(1);
571	>	final CountDownLatch done = new CountDownLatch(1);
572	>	for (int i = 0; i < tasks.length; i++) {
573	>	Runnable r = new CheckedRunnable() {
574	>	public void realRun() throws InterruptedException {
575	>	threadStarted.countDown();
576	>	done.await();
577	>	}};
578	>	tasks[i] = p.schedule(r, 1, MILLISECONDS);
579	>	}
580	>	assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
581	>	BlockingQueue<Runnable> q = p.getQueue();
582	>	assertFalse(p.remove((Runnable)tasks[0]));
583	>	assertTrue(q.contains((Runnable)tasks[4]));
584	>	assertTrue(q.contains((Runnable)tasks[3]));
585	>	assertTrue(p.remove((Runnable)tasks[4]));
586	>	assertFalse(p.remove((Runnable)tasks[4]));
587	>	assertFalse(q.contains((Runnable)tasks[4]));
588	>	assertTrue(q.contains((Runnable)tasks[3]));
589	>	assertTrue(p.remove((Runnable)tasks[3]));
590	>	assertFalse(q.contains((Runnable)tasks[3]));
591	>	done.countDown();
592	>	}
593	>	}
594	>
595	>	/**
596	>	* purge eventually removes cancelled tasks from the queue
597	>	*/
598	>	public void testPurge() throws InterruptedException {
599	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
600	>	ScheduledFuture[] tasks = new ScheduledFuture[5];
601	>	for (int i = 0; i < tasks.length; i++)
602	>	tasks[i] = p.schedule(new SmallPossiblyInterruptedRunnable(),
603	>	LONG_DELAY_MS, MILLISECONDS);
604		try {
605	<	p1.execute(new SmallRunnable());
605	>	int max = tasks.length;
606	>	if (tasks[4].cancel(true)) --max;
607	>	if (tasks[3].cancel(true)) --max;
608	>	// There must eventually be an interference-free point at
609	>	// which purge will not fail. (At worst, when queue is empty.)
610	>	long startTime = System.nanoTime();
611	>	do {
612	>	p.purge();
613	>	long count = p.getTaskCount();
614	>	if (count == max)
615	>	return;
616	>	} while (millisElapsedSince(startTime) < MEDIUM_DELAY_MS);
617	>	fail("Purge failed to remove cancelled tasks");
618		} finally {
619	<	p1.shutdown();
619	>	for (ScheduledFuture task : tasks)
620	>	task.cancel(true);
621	>	joinPool(p);
622		}
373	–	try {
374	–	assertTrue(p1.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
375	–	assertTrue(p1.isTerminated());
376	–	} catch(Exception e){
377	–	unexpectedException();
378	–	}
623		}
624
625		/**
626	<	*  isTerminating is not true when running or when terminated
626	>	* shutdownNow returns a list containing tasks that were not run,
627	>	* and those tasks are drained from the queue
628		*/
629	<	public void testIsTerminating() {
630	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
631	<	assertFalse(p1.isTerminating());
629	>	public void testShutdownNow() throws InterruptedException {
630	>	final int poolSize = 2;
631	>	final int count = 5;
632	>	final AtomicInteger ran = new AtomicInteger(0);
633	>	final ScheduledThreadPoolExecutor p =
634	>	new ScheduledThreadPoolExecutor(poolSize);
635	>	final CountDownLatch threadsStarted = new CountDownLatch(poolSize);
636	>	Runnable waiter = new CheckedRunnable() { public void realRun() {
637	>	threadsStarted.countDown();
638	>	try {
639	>	MILLISECONDS.sleep(2 * LONG_DELAY_MS);
640	>	} catch (InterruptedException success) {}
641	>	ran.getAndIncrement();
642	>	}};
643	>	for (int i = 0; i < count; i++)
644	>	p.execute(waiter);
645	>	assertTrue(threadsStarted.await(LONG_DELAY_MS, MILLISECONDS));
646	>	assertEquals(poolSize, p.getActiveCount());
647	>	assertEquals(0, p.getCompletedTaskCount());
648	>	final List<Runnable> queuedTasks;
649		try {
650	<	p1.execute(new SmallRunnable());
651	<	assertFalse(p1.isTerminating());
652	<	} finally {
653	<	p1.shutdown();
654	<	}
650	>	queuedTasks = p.shutdownNow();
651	>	} catch (SecurityException ok) {
652	>	return; // Allowed in case test doesn't have privs
653	>	}
654	>	assertTrue(p.isShutdown());
655	>	assertTrue(p.getQueue().isEmpty());
656	>	assertEquals(count - poolSize, queuedTasks.size());
657	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
658	>	assertTrue(p.isTerminated());
659	>	assertEquals(poolSize, ran.get());
660	>	assertEquals(poolSize, p.getCompletedTaskCount());
661	>	}
662	>
663	>	/**
664	>	* shutdownNow returns a list containing tasks that were not run,
665	>	* and those tasks are drained from the queue
666	>	*/
667	>	public void testShutdownNow_delayedTasks() throws InterruptedException {
668	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
669	>	List<ScheduledFuture> tasks = new ArrayList<>();
670	>	for (int i = 0; i < 3; i++) {
671	>	Runnable r = new NoOpRunnable();
672	>	tasks.add(p.schedule(r, 9, SECONDS));
673	>	tasks.add(p.scheduleAtFixedRate(r, 9, 9, SECONDS));
674	>	tasks.add(p.scheduleWithFixedDelay(r, 9, 9, SECONDS));
675	>	}
676	>	if (testImplementationDetails)
677	>	assertEquals(new HashSet(tasks), new HashSet(p.getQueue()));
678	>	final List<Runnable> queuedTasks;
679		try {
680	<	assertTrue(p1.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
681	<	assertTrue(p1.isTerminated());
682	<	assertFalse(p1.isTerminating());
683	<	} catch(Exception e){
684	<	unexpectedException();
685	<	}
680	>	queuedTasks = p.shutdownNow();
681	>	} catch (SecurityException ok) {
682	>	return; // Allowed in case test doesn't have privs
683	>	}
684	>	assertTrue(p.isShutdown());
685	>	assertTrue(p.getQueue().isEmpty());
686	>	if (testImplementationDetails)
687	>	assertEquals(new HashSet(tasks), new HashSet(queuedTasks));
688	>	assertEquals(tasks.size(), queuedTasks.size());
689	>	for (ScheduledFuture task : tasks) {
690	>	assertFalse(task.isDone());
691	>	assertFalse(task.isCancelled());
692	>	}
693	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
694	>	assertTrue(p.isTerminated());
695		}
696
697		/**
698	<	*   purge removes cancelled tasks from the queue
698	>	* By default, periodic tasks are cancelled at shutdown.
699	>	* By default, delayed tasks keep running after shutdown.
700	>	* Check that changing the default values work:
701	>	* - setExecuteExistingDelayedTasksAfterShutdownPolicy
702	>	* - setContinueExistingPeriodicTasksAfterShutdownPolicy
703	>	*/
704	>	public void testShutdown_cancellation() throws Exception {
705	>	Boolean[] allBooleans = { null, Boolean.FALSE, Boolean.TRUE };
706	>	for (Boolean policy : allBooleans)
707	>	{
708	>	final int poolSize = 2;
709	>	final ScheduledThreadPoolExecutor p
710	>	= new ScheduledThreadPoolExecutor(poolSize);
711	>	final boolean effectiveDelayedPolicy = (policy != Boolean.FALSE);
712	>	final boolean effectivePeriodicPolicy = (policy == Boolean.TRUE);
713	>	final boolean effectiveRemovePolicy = (policy == Boolean.TRUE);
714	>	if (policy != null) {
715	>	p.setExecuteExistingDelayedTasksAfterShutdownPolicy(policy);
716	>	p.setContinueExistingPeriodicTasksAfterShutdownPolicy(policy);
717	>	p.setRemoveOnCancelPolicy(policy);
718	>	}
719	>	assertEquals(effectiveDelayedPolicy,
720	>	p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
721	>	assertEquals(effectivePeriodicPolicy,
722	>	p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
723	>	assertEquals(effectiveRemovePolicy,
724	>	p.getRemoveOnCancelPolicy());
725	>	// Strategy: Wedge the pool with poolSize "blocker" threads
726	>	final AtomicInteger ran = new AtomicInteger(0);
727	>	final CountDownLatch poolBlocked = new CountDownLatch(poolSize);
728	>	final CountDownLatch unblock = new CountDownLatch(1);
729	>	final CountDownLatch periodicLatch1 = new CountDownLatch(2);
730	>	final CountDownLatch periodicLatch2 = new CountDownLatch(2);
731	>	Runnable task = new CheckedRunnable() { public void realRun()
732	>	throws InterruptedException {
733	>	poolBlocked.countDown();
734	>	assertTrue(unblock.await(LONG_DELAY_MS, MILLISECONDS));
735	>	ran.getAndIncrement();
736	>	}};
737	>	List<Future<?>> blockers = new ArrayList<>();
738	>	List<Future<?>> periodics = new ArrayList<>();
739	>	List<Future<?>> delayeds = new ArrayList<>();
740	>	for (int i = 0; i < poolSize; i++)
741	>	blockers.add(p.submit(task));
742	>	assertTrue(poolBlocked.await(LONG_DELAY_MS, MILLISECONDS));
743	>
744	>	periodics.add(p.scheduleAtFixedRate(countDowner(periodicLatch1),
745	>	1, 1, MILLISECONDS));
746	>	periodics.add(p.scheduleWithFixedDelay(countDowner(periodicLatch2),
747	>	1, 1, MILLISECONDS));
748	>	delayeds.add(p.schedule(task, 1, MILLISECONDS));
749	>
750	>	assertTrue(p.getQueue().containsAll(periodics));
751	>	assertTrue(p.getQueue().containsAll(delayeds));
752	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
753	>	assertTrue(p.isShutdown());
754	>	assertFalse(p.isTerminated());
755	>	for (Future<?> periodic : periodics) {
756	>	assertTrue(effectivePeriodicPolicy ^ periodic.isCancelled());
757	>	assertTrue(effectivePeriodicPolicy ^ periodic.isDone());
758	>	}
759	>	for (Future<?> delayed : delayeds) {
760	>	assertTrue(effectiveDelayedPolicy ^ delayed.isCancelled());
761	>	assertTrue(effectiveDelayedPolicy ^ delayed.isDone());
762	>	}
763	>	if (testImplementationDetails) {
764	>	assertEquals(effectivePeriodicPolicy,
765	>	p.getQueue().containsAll(periodics));
766	>	assertEquals(effectiveDelayedPolicy,
767	>	p.getQueue().containsAll(delayeds));
768	>	}
769	>	// Release all pool threads
770	>	unblock.countDown();
771	>
772	>	for (Future<?> delayed : delayeds) {
773	>	if (effectiveDelayedPolicy) {
774	>	assertNull(delayed.get());
775	>	}
776	>	}
777	>	if (effectivePeriodicPolicy) {
778	>	assertTrue(periodicLatch1.await(LONG_DELAY_MS, MILLISECONDS));
779	>	assertTrue(periodicLatch2.await(LONG_DELAY_MS, MILLISECONDS));
780	>	for (Future<?> periodic : periodics) {
781	>	assertTrue(periodic.cancel(false));
782	>	assertTrue(periodic.isCancelled());
783	>	assertTrue(periodic.isDone());
784	>	}
785	>	}
786	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
787	>	assertTrue(p.isTerminated());
788	>	assertEquals(2 + (effectiveDelayedPolicy ? 1 : 0), ran.get());
789	>	}}
790	>
791	>	/**
792	>	* completed submit of callable returns result
793		*/
794	<	public void testPurge() {
795	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
796	<	ScheduledCancellable[] tasks = new ScheduledCancellable[5];
797	<	for(int i = 0; i < 5; i++){
798	<	tasks[i] = p1.schedule(new SmallRunnable(), 1, TimeUnit.MILLISECONDS);
794	>	public void testSubmitCallable() throws Exception {
795	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
796	>	try (PoolCleaner cleaner = cleaner(e)) {
797	>	Future<String> future = e.submit(new StringTask());
798	>	String result = future.get();
799	>	assertSame(TEST_STRING, result);
800		}
411	–	int max = 5;
412	–	if (tasks[4].cancel(true)) --max;
413	–	if (tasks[3].cancel(true)) --max;
414	–	p1.purge();
415	–	long count = p1.getTaskCount();
416	–	assertTrue(count > 0 && count <= max);
417	–	joinPool(p1);
801		}
802
803		/**
804	<	*  shutDownNow returns a list containing tasks that were not run
804	>	* completed submit of runnable returns successfully
805		*/
806	<	public void testShutDownNow() {
807	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
808	<	for(int i = 0; i < 5; i++)
809	<	p1.schedule(new SmallRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
810	<	List l = p1.shutdownNow();
811	<	assertTrue(p1.isShutdown());
812	<	assertTrue(l.size() > 0 && l.size() <= 5);
430	<	joinPool(p1);
806	>	public void testSubmitRunnable() throws Exception {
807	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
808	>	try (PoolCleaner cleaner = cleaner(e)) {
809	>	Future<?> future = e.submit(new NoOpRunnable());
810	>	future.get();
811	>	assertTrue(future.isDone());
812	>	}
813		}
814
815		/**
816	<	* In default setting, shutdown cancels periodic but not delayed
435	<	* tasks at shutdown
816	>	* completed submit of (runnable, result) returns result
817		*/
818	<	public void testShutDown1() {
819	<	try {
820	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
821	<	assertTrue(p1.getExecuteExistingDelayedTasksAfterShutdownPolicy());
822	<	assertFalse(p1.getContinueExistingPeriodicTasksAfterShutdownPolicy());
818	>	public void testSubmitRunnable2() throws Exception {
819	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
820	>	try (PoolCleaner cleaner = cleaner(e)) {
821	>	Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING);
822	>	String result = future.get();
823	>	assertSame(TEST_STRING, result);
824	>	}
825	>	}
826
827	<	ScheduledCancellable[] tasks = new ScheduledCancellable[5];
828	<	for(int i = 0; i < 5; i++)
829	<	tasks[i] = p1.schedule(new NoOpRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
830	<	p1.shutdown();
831	<	BlockingQueue q = p1.getQueue();
832	<	for (Iterator it = q.iterator(); it.hasNext();) {
833	<	ScheduledCancellable t = (ScheduledCancellable)it.next();
834	<	assertFalse(t.isCancelled());
827	>	/**
828	>	* invokeAny(null) throws NPE
829	>	*/
830	>	public void testInvokeAny1() throws Exception {
831	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
832	>	try (PoolCleaner cleaner = cleaner(e)) {
833	>	try {
834	>	e.invokeAny(null);
835	>	shouldThrow();
836	>	} catch (NullPointerException success) {}
837	>	}
838	>	}
839	>
840	>	/**
841	>	* invokeAny(empty collection) throws IAE
842	>	*/
843	>	public void testInvokeAny2() throws Exception {
844	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
845	>	try (PoolCleaner cleaner = cleaner(e)) {
846	>	try {
847	>	e.invokeAny(new ArrayList<Callable<String>>());
848	>	shouldThrow();
849	>	} catch (IllegalArgumentException success) {}
850	>	}
851	>	}
852	>
853	>	/**
854	>	* invokeAny(c) throws NPE if c has null elements
855	>	*/
856	>	public void testInvokeAny3() throws Exception {
857	>	CountDownLatch latch = new CountDownLatch(1);
858	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
859	>	try (PoolCleaner cleaner = cleaner(e)) {
860	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
861	>	l.add(latchAwaitingStringTask(latch));
862	>	l.add(null);
863	>	try {
864	>	e.invokeAny(l);
865	>	shouldThrow();
866	>	} catch (NullPointerException success) {}
867	>	latch.countDown();
868	>	}
869	>	}
870	>
871	>	/**
872	>	* invokeAny(c) throws ExecutionException if no task completes
873	>	*/
874	>	public void testInvokeAny4() throws Exception {
875	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
876	>	try (PoolCleaner cleaner = cleaner(e)) {
877	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
878	>	l.add(new NPETask());
879	>	try {
880	>	e.invokeAny(l);
881	>	shouldThrow();
882	>	} catch (ExecutionException success) {
883	>	assertTrue(success.getCause() instanceof NullPointerException);
884		}
885	<	assertTrue(p1.isShutdown());
886	<	Thread.sleep(SMALL_DELAY_MS);
887	<	for (int i = 0; i < 5; ++i) {
888	<	assertTrue(tasks[i].isDone());
889	<	assertFalse(tasks[i].isCancelled());
885	>	}
886	>	}
887	>
888	>	/**
889	>	* invokeAny(c) returns result of some task
890	>	*/
891	>	public void testInvokeAny5() throws Exception {
892	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
893	>	try (PoolCleaner cleaner = cleaner(e)) {
894	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
895	>	l.add(new StringTask());
896	>	l.add(new StringTask());
897	>	String result = e.invokeAny(l);
898	>	assertSame(TEST_STRING, result);
899	>	}
900	>	}
901	>
902	>	/**
903	>	* invokeAll(null) throws NPE
904	>	*/
905	>	public void testInvokeAll1() throws Exception {
906	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
907	>	try (PoolCleaner cleaner = cleaner(e)) {
908	>	try {
909	>	e.invokeAll(null);
910	>	shouldThrow();
911	>	} catch (NullPointerException success) {}
912	>	}
913	>	}
914	>
915	>	/**
916	>	* invokeAll(empty collection) returns empty collection
917	>	*/
918	>	public void testInvokeAll2() throws Exception {
919	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
920	>	try (PoolCleaner cleaner = cleaner(e)) {
921	>	List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>());
922	>	assertTrue(r.isEmpty());
923	>	}
924	>	}
925	>
926	>	/**
927	>	* invokeAll(c) throws NPE if c has null elements
928	>	*/
929	>	public void testInvokeAll3() throws Exception {
930	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
931	>	try (PoolCleaner cleaner = cleaner(e)) {
932	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
933	>	l.add(new StringTask());
934	>	l.add(null);
935	>	try {
936	>	e.invokeAll(l);
937	>	shouldThrow();
938	>	} catch (NullPointerException success) {}
939	>	}
940	>	}
941	>
942	>	/**
943	>	* get of invokeAll(c) throws exception on failed task
944	>	*/
945	>	public void testInvokeAll4() throws Exception {
946	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
947	>	try (PoolCleaner cleaner = cleaner(e)) {
948	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
949	>	l.add(new NPETask());
950	>	List<Future<String>> futures = e.invokeAll(l);
951	>	assertEquals(1, futures.size());
952	>	try {
953	>	futures.get(0).get();
954	>	shouldThrow();
955	>	} catch (ExecutionException success) {
956	>	assertTrue(success.getCause() instanceof NullPointerException);
957		}
458	–
958		}
959	<	catch(Exception ex) {
960	<	unexpectedException();
959	>	}
960	>
961	>	/**
962	>	* invokeAll(c) returns results of all completed tasks
963	>	*/
964	>	public void testInvokeAll5() throws Exception {
965	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
966	>	try (PoolCleaner cleaner = cleaner(e)) {
967	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
968	>	l.add(new StringTask());
969	>	l.add(new StringTask());
970	>	List<Future<String>> futures = e.invokeAll(l);
971	>	assertEquals(2, futures.size());
972	>	for (Future<String> future : futures)
973	>	assertSame(TEST_STRING, future.get());
974	>	}
975	>	}
976	>
977	>	/**
978	>	* timed invokeAny(null) throws NPE
979	>	*/
980	>	public void testTimedInvokeAny1() throws Exception {
981	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
982	>	try (PoolCleaner cleaner = cleaner(e)) {
983	>	try {
984	>	e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS);
985	>	shouldThrow();
986	>	} catch (NullPointerException success) {}
987	>	}
988	>	}
989	>
990	>	/**
991	>	* timed invokeAny(,,null) throws NPE
992	>	*/
993	>	public void testTimedInvokeAnyNullTimeUnit() throws Exception {
994	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
995	>	try (PoolCleaner cleaner = cleaner(e)) {
996	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
997	>	l.add(new StringTask());
998	>	try {
999	>	e.invokeAny(l, MEDIUM_DELAY_MS, null);
1000	>	shouldThrow();
1001	>	} catch (NullPointerException success) {}
1002		}
1003		}
1004
1005	+	/**
1006	+	* timed invokeAny(empty collection) throws IAE
1007	+	*/
1008	+	public void testTimedInvokeAny2() throws Exception {
1009	+	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1010	+	try (PoolCleaner cleaner = cleaner(e)) {
1011	+	try {
1012	+	e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
1013	+	shouldThrow();
1014	+	} catch (IllegalArgumentException success) {}
1015	+	}
1016	+	}
1017
1018		/**
1019	<	* If setExecuteExistingDelayedTasksAfterShutdownPolicy is false,
468	<	* delayed tasks are cancelled at shutdown
1019	>	* timed invokeAny(c) throws NPE if c has null elements
1020		*/
1021	<	public void testShutDown2() {
1022	<	try {
1023	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
1024	<	p1.setExecuteExistingDelayedTasksAfterShutdownPolicy(false);
1025	<	ScheduledCancellable[] tasks = new ScheduledCancellable[5];
1026	<	for(int i = 0; i < 5; i++)
1027	<	tasks[i] = p1.schedule(new NoOpRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
1028	<	p1.shutdown();
1029	<	assertTrue(p1.isShutdown());
1030	<	BlockingQueue q = p1.getQueue();
1031	<	assertTrue(q.isEmpty());
1032	<	Thread.sleep(SMALL_DELAY_MS);
482	<	assertTrue(p1.isTerminated());
1021	>	public void testTimedInvokeAny3() throws Exception {
1022	>	CountDownLatch latch = new CountDownLatch(1);
1023	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1024	>	try (PoolCleaner cleaner = cleaner(e)) {
1025	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1026	>	l.add(latchAwaitingStringTask(latch));
1027	>	l.add(null);
1028	>	try {
1029	>	e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1030	>	shouldThrow();
1031	>	} catch (NullPointerException success) {}
1032	>	latch.countDown();
1033		}
1034	<	catch(Exception ex) {
1035	<	unexpectedException();
1034	>	}
1035	>
1036	>	/**
1037	>	* timed invokeAny(c) throws ExecutionException if no task completes
1038	>	*/
1039	>	public void testTimedInvokeAny4() throws Exception {
1040	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1041	>	try (PoolCleaner cleaner = cleaner(e)) {
1042	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1043	>	l.add(new NPETask());
1044	>	try {
1045	>	e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1046	>	shouldThrow();
1047	>	} catch (ExecutionException success) {
1048	>	assertTrue(success.getCause() instanceof NullPointerException);
1049	>	}
1050		}
1051		}
1052
1053	+	/**
1054	+	* timed invokeAny(c) returns result of some task
1055	+	*/
1056	+	public void testTimedInvokeAny5() throws Exception {
1057	+	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1058	+	try (PoolCleaner cleaner = cleaner(e)) {
1059	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
1060	+	l.add(new StringTask());
1061	+	l.add(new StringTask());
1062	+	String result = e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1063	+	assertSame(TEST_STRING, result);
1064	+	}
1065	+	}
1066
1067		/**
1068	<	* If setContinueExistingPeriodicTasksAfterShutdownPolicy is set false,
492	<	* periodic tasks are not cancelled at shutdown
1068	>	* timed invokeAll(null) throws NPE
1069		*/
1070	<	public void testShutDown3() {
1071	<	try {
1072	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
1073	<	p1.setContinueExistingPeriodicTasksAfterShutdownPolicy(false);
1074	<	ScheduledCancellable task =
1075	<	p1.scheduleAtFixedRate(new NoOpRunnable(), 5, 5, TimeUnit.MILLISECONDS);
1076	<	p1.shutdown();
501	<	assertTrue(p1.isShutdown());
502	<	BlockingQueue q = p1.getQueue();
503	<	assertTrue(q.isEmpty());
504	<	Thread.sleep(SHORT_DELAY_MS);
505	<	assertTrue(p1.isTerminated());
1070	>	public void testTimedInvokeAll1() throws Exception {
1071	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1072	>	try (PoolCleaner cleaner = cleaner(e)) {
1073	>	try {
1074	>	e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS);
1075	>	shouldThrow();
1076	>	} catch (NullPointerException success) {}
1077		}
1078	<	catch(Exception ex) {
1079	<	unexpectedException();
1078	>	}
1079	>
1080	>	/**
1081	>	* timed invokeAll(,,null) throws NPE
1082	>	*/
1083	>	public void testTimedInvokeAllNullTimeUnit() throws Exception {
1084	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1085	>	try (PoolCleaner cleaner = cleaner(e)) {
1086	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1087	>	l.add(new StringTask());
1088	>	try {
1089	>	e.invokeAll(l, MEDIUM_DELAY_MS, null);
1090	>	shouldThrow();
1091	>	} catch (NullPointerException success) {}
1092		}
1093		}
1094
1095		/**
1096	<	* if setContinueExistingPeriodicTasksAfterShutdownPolicy is true,
514	<	* periodic tasks are cancelled at shutdown
1096	>	* timed invokeAll(empty collection) returns empty collection
1097		*/
1098	<	public void testShutDown4() {
1099	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
1100	<	try {
1101	<	p1.setContinueExistingPeriodicTasksAfterShutdownPolicy(true);
1102	<	ScheduledCancellable task =
1103	<	p1.scheduleAtFixedRate(new NoOpRunnable(), 5, 5, TimeUnit.MILLISECONDS);
522	<	assertFalse(task.isCancelled());
523	<	p1.shutdown();
524	<	assertFalse(task.isCancelled());
525	<	assertFalse(p1.isTerminated());
526	<	assertTrue(p1.isShutdown());
527	<	Thread.sleep(SHORT_DELAY_MS);
528	<	assertFalse(task.isCancelled());
529	<	task.cancel(true);
530	<	assertTrue(task.isCancelled());
531	<	Thread.sleep(SHORT_DELAY_MS);
532	<	assertTrue(p1.isTerminated());
1098	>	public void testTimedInvokeAll2() throws Exception {
1099	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1100	>	try (PoolCleaner cleaner = cleaner(e)) {
1101	>	List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(),
1102	>	MEDIUM_DELAY_MS, MILLISECONDS);
1103	>	assertTrue(r.isEmpty());
1104		}
1105	<	catch(Exception ex) {
1106	<	unexpectedException();
1105	>	}
1106	>
1107	>	/**
1108	>	* timed invokeAll(c) throws NPE if c has null elements
1109	>	*/
1110	>	public void testTimedInvokeAll3() throws Exception {
1111	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1112	>	try (PoolCleaner cleaner = cleaner(e)) {
1113	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1114	>	l.add(new StringTask());
1115	>	l.add(null);
1116	>	try {
1117	>	e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1118	>	shouldThrow();
1119	>	} catch (NullPointerException success) {}
1120		}
1121	<	finally {
1122	<	p1.shutdownNow();
1121	>	}
1122	>
1123	>	/**
1124	>	* get of element of invokeAll(c) throws exception on failed task
1125	>	*/
1126	>	public void testTimedInvokeAll4() throws Exception {
1127	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1128	>	try (PoolCleaner cleaner = cleaner(e)) {
1129	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1130	>	l.add(new NPETask());
1131	>	List<Future<String>> futures =
1132	>	e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1133	>	assertEquals(1, futures.size());
1134	>	try {
1135	>	futures.get(0).get();
1136	>	shouldThrow();
1137	>	} catch (ExecutionException success) {
1138	>	assertTrue(success.getCause() instanceof NullPointerException);
1139	>	}
1140	>	}
1141	>	}
1142	>
1143	>	/**
1144	>	* timed invokeAll(c) returns results of all completed tasks
1145	>	*/
1146	>	public void testTimedInvokeAll5() throws Exception {
1147	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1148	>	try (PoolCleaner cleaner = cleaner(e)) {
1149	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1150	>	l.add(new StringTask());
1151	>	l.add(new StringTask());
1152	>	List<Future<String>> futures =
1153	>	e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS);
1154	>	assertEquals(2, futures.size());
1155	>	for (Future<String> future : futures)
1156	>	assertSame(TEST_STRING, future.get());
1157	>	}
1158	>	}
1159	>
1160	>	/**
1161	>	* timed invokeAll(c) cancels tasks not completed by timeout
1162	>	*/
1163	>	public void testTimedInvokeAll6() throws Exception {
1164	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1165	>	try (PoolCleaner cleaner = cleaner(e)) {
1166	>	for (long timeout = timeoutMillis();;) {
1167	>	List<Callable<String>> tasks = new ArrayList<>();
1168	>	tasks.add(new StringTask("0"));
1169	>	tasks.add(Executors.callable(new LongPossiblyInterruptedRunnable(), TEST_STRING));
1170	>	tasks.add(new StringTask("2"));
1171	>	long startTime = System.nanoTime();
1172	>	List<Future<String>> futures =
1173	>	e.invokeAll(tasks, timeout, MILLISECONDS);
1174	>	assertEquals(tasks.size(), futures.size());
1175	>	assertTrue(millisElapsedSince(startTime) >= timeout);
1176	>	for (Future future : futures)
1177	>	assertTrue(future.isDone());
1178	>	assertTrue(futures.get(1).isCancelled());
1179	>	try {
1180	>	assertEquals("0", futures.get(0).get());
1181	>	assertEquals("2", futures.get(2).get());
1182	>	break;
1183	>	} catch (CancellationException retryWithLongerTimeout) {
1184	>	timeout *= 2;
1185	>	if (timeout >= LONG_DELAY_MS / 2)
1186	>	fail("expected exactly one task to be cancelled");
1187	>	}
1188	>	}
1189		}
1190		}
1191

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