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

Comparing jsr166/src/test/tck/ScheduledExecutorTest.java (file contents):
Revision 1.10 by dl, Mon Dec 22 00:48:56 2003 UTC vs.
Revision 1.90 by jsr166, Tue Mar 28 23:21:24 2017 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.NANOSECONDS;
11	>	import static java.util.concurrent.TimeUnit.SECONDS;
12	>
13	>	import java.util.ArrayList;
14	>	import java.util.HashSet;
15	>	import java.util.List;
16	>	import java.util.concurrent.BlockingQueue;
17	>	import java.util.concurrent.Callable;
18	>	import java.util.concurrent.CancellationException;
19	>	import java.util.concurrent.CountDownLatch;
20	>	import java.util.concurrent.ExecutionException;
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.ThreadLocalRandom;
28	>	import java.util.concurrent.ThreadPoolExecutor;
29	>	import java.util.concurrent.atomic.AtomicBoolean;
30	>	import java.util.concurrent.atomic.AtomicInteger;
31	>	import java.util.concurrent.atomic.AtomicLong;
32	>	import java.util.stream.Stream;
33	>
34	>	import junit.framework.Test;
35	>	import junit.framework.TestSuite;
36
37		public class ScheduledExecutorTest extends JSR166TestCase {
38		public static void main(String[] args) {
39	<	junit.textui.TestRunner.run (suite());
39	>	main(suite(), args);
40		}
41		public static Test suite() {
42	<	return new TestSuite(ScheduledExecutorTest.class);
42	>	return new TestSuite(ScheduledExecutorTest.class);
43		}
44
20	–
45		/**
46		* execute successfully executes a runnable
47		*/
48	<	public void testExecute() {
49	<	try {
50	<	TrackedShortRunnable runnable =new TrackedShortRunnable();
51	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
52	<	p1.execute(runnable);
53	<	assertFalse(runnable.done);
54	<	Thread.sleep(SHORT_DELAY_MS);
55	<	p1.shutdown();
32	<	try {
33	<	Thread.sleep(MEDIUM_DELAY_MS);
34	<	} catch(InterruptedException e){
35	<	unexpectedException();
36	<	}
37	<	assertTrue(runnable.done);
38	<	p1.shutdown();
39	<	joinPool(p1);
48	>	public void testExecute() throws InterruptedException {
49	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
50	>	try (PoolCleaner cleaner = cleaner(p)) {
51	>	final CountDownLatch done = new CountDownLatch(1);
52	>	final Runnable task = new CheckedRunnable() {
53	>	public void realRun() { done.countDown(); }};
54	>	p.execute(task);
55	>	await(done);
56		}
41	–	catch(Exception e){
42	–	unexpectedException();
43	–	}
44	–
57		}
58
47	–
59		/**
60		* delayed schedule of callable successfully executes after delay
61		*/
62	<	public void testSchedule1() {
63	<	try {
64	<	TrackedCallable callable = new TrackedCallable();
65	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
66	<	Future f = p1.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
67	<	assertFalse(callable.done);
68	<	Thread.sleep(MEDIUM_DELAY_MS);
69	<	assertTrue(callable.done);
70	<	assertEquals(Boolean.TRUE, f.get());
71	<	p1.shutdown();
72	<	joinPool(p1);
73	<	} catch(RejectedExecutionException e){}
74	<	catch(Exception e){
75	<	e.printStackTrace();
76	<	unexpectedException();
62	>	public void testSchedule1() throws Exception {
63	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
64	>	try (PoolCleaner cleaner = cleaner(p)) {
65	>	final long startTime = System.nanoTime();
66	>	final CountDownLatch done = new CountDownLatch(1);
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		}
78		}
79
80		/**
81	<	*  delayed schedule of runnable successfully executes after delay
82	<	*/
83	<	public void testSchedule3() {
84	<	try {
85	<	TrackedShortRunnable runnable = new TrackedShortRunnable();
86	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
87	<	p1.schedule(runnable, SMALL_DELAY_MS, TimeUnit.MILLISECONDS);
88	<	Thread.sleep(SHORT_DELAY_MS);
89	<	assertFalse(runnable.done);
90	<	Thread.sleep(MEDIUM_DELAY_MS);
91	<	assertTrue(runnable.done);
92	<	p1.shutdown();
93	<	joinPool(p1);
94	<	} catch(Exception e){
95	<	unexpectedException();
81	>	* delayed schedule of runnable successfully executes after delay
82	>	*/
83	>	public void testSchedule3() throws Exception {
84	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
85	>	try (PoolCleaner cleaner = cleaner(p)) {
86	>	final long startTime = System.nanoTime();
87	>	final CountDownLatch done = new CountDownLatch(1);
88	>	Runnable task = new CheckedRunnable() {
89	>	public void realRun() {
90	>	done.countDown();
91	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
92	>	}};
93	>	Future f = p.schedule(task, timeoutMillis(), MILLISECONDS);
94	>	await(done);
95	>	assertNull(f.get(LONG_DELAY_MS, MILLISECONDS));
96	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
97		}
98		}
99	<
99	>
100		/**
101		* scheduleAtFixedRate executes runnable after given initial delay
102		*/
103	<	public void testSchedule4() {
104	<	try {
105	<	TrackedShortRunnable runnable = new TrackedShortRunnable();
106	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
107	<	ScheduledFuture h = p1.scheduleAtFixedRate(runnable, SHORT_DELAY_MS, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
108	<	assertFalse(runnable.done);
109	<	Thread.sleep(MEDIUM_DELAY_MS);
110	<	assertTrue(runnable.done);
111	<	h.cancel(true);
112	<	p1.shutdown();
113	<	joinPool(p1);
114	<	} catch(Exception e){
115	<	unexpectedException();
103	>	public void testSchedule4() throws Exception {
104	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
105	>	try (PoolCleaner cleaner = cleaner(p)) {
106	>	final long startTime = System.nanoTime();
107	>	final CountDownLatch done = new CountDownLatch(1);
108	>	Runnable task = new CheckedRunnable() {
109	>	public void realRun() {
110	>	done.countDown();
111	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
112	>	}};
113	>	ScheduledFuture f =
114	>	p.scheduleAtFixedRate(task, timeoutMillis(),
115	>	LONG_DELAY_MS, MILLISECONDS);
116	>	await(done);
117	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
118	>	f.cancel(true);
119		}
120		}
121
122		/**
123		* scheduleWithFixedDelay executes runnable after given initial delay
124		*/
125	<	public void testSchedule5() {
126	<	try {
127	<	TrackedShortRunnable runnable = new TrackedShortRunnable();
128	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
129	<	ScheduledFuture h = p1.scheduleWithFixedDelay(runnable, SHORT_DELAY_MS, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
130	<	assertFalse(runnable.done);
131	<	Thread.sleep(MEDIUM_DELAY_MS);
132	<	assertTrue(runnable.done);
133	<	h.cancel(true);
134	<	p1.shutdown();
135	<	joinPool(p1);
136	<	} catch(Exception e){
137	<	unexpectedException();
125	>	public void testSchedule5() throws Exception {
126	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
127	>	try (PoolCleaner cleaner = cleaner(p)) {
128	>	final long startTime = System.nanoTime();
129	>	final CountDownLatch done = new CountDownLatch(1);
130	>	Runnable task = new CheckedRunnable() {
131	>	public void realRun() {
132	>	done.countDown();
133	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
134	>	}};
135	>	ScheduledFuture f =
136	>	p.scheduleWithFixedDelay(task, timeoutMillis(),
137	>	LONG_DELAY_MS, MILLISECONDS);
138	>	await(done);
139	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
140	>	f.cancel(true);
141	>	}
142	>	}
143	>
144	>	static class RunnableCounter implements Runnable {
145	>	AtomicInteger count = new AtomicInteger(0);
146	>	public void run() { count.getAndIncrement(); }
147	>	}
148	>
149	>	/**
150	>	* scheduleAtFixedRate executes series of tasks at given rate.
151	>	* Eventually, it must hold that:
152	>	*   cycles - 1 <= elapsedMillis/delay < cycles
153	>	*/
154	>	public void testFixedRateSequence() throws InterruptedException {
155	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
156	>	try (PoolCleaner cleaner = cleaner(p)) {
157	>	for (int delay = 1; delay <= LONG_DELAY_MS; delay *= 3) {
158	>	final long startTime = System.nanoTime();
159	>	final int cycles = 8;
160	>	final CountDownLatch done = new CountDownLatch(cycles);
161	>	final Runnable task = new CheckedRunnable() {
162	>	public void realRun() { done.countDown(); }};
163	>	final ScheduledFuture periodicTask =
164	>	p.scheduleAtFixedRate(task, 0, delay, MILLISECONDS);
165	>	final int totalDelayMillis = (cycles - 1) * delay;
166	>	await(done, totalDelayMillis + LONG_DELAY_MS);
167	>	periodicTask.cancel(true);
168	>	final long elapsedMillis = millisElapsedSince(startTime);
169	>	assertTrue(elapsedMillis >= totalDelayMillis);
170	>	if (elapsedMillis <= cycles * delay)
171	>	return;
172	>	// else retry with longer delay
173	>	}
174	>	fail("unexpected execution rate");
175		}
176		}
177	<
177	>
178		/**
179	<	*  execute (null) throws NPE
179	>	* scheduleWithFixedDelay executes series of tasks with given period.
180	>	* Eventually, it must hold that each task starts at least delay and at
181	>	* most 2 * delay after the termination of the previous task.
182	>	*/
183	>	public void testFixedDelaySequence() throws InterruptedException {
184	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
185	>	try (PoolCleaner cleaner = cleaner(p)) {
186	>	for (int delay = 1; delay <= LONG_DELAY_MS; delay *= 3) {
187	>	final long startTime = System.nanoTime();
188	>	final AtomicLong previous = new AtomicLong(startTime);
189	>	final AtomicBoolean tryLongerDelay = new AtomicBoolean(false);
190	>	final int cycles = 8;
191	>	final CountDownLatch done = new CountDownLatch(cycles);
192	>	final int d = delay;
193	>	final Runnable task = new CheckedRunnable() {
194	>	public void realRun() {
195	>	long now = System.nanoTime();
196	>	long elapsedMillis
197	>	= NANOSECONDS.toMillis(now - previous.get());
198	>	if (done.getCount() == cycles) { // first execution
199	>	if (elapsedMillis >= d)
200	>	tryLongerDelay.set(true);
201	>	} else {
202	>	assertTrue(elapsedMillis >= d);
203	>	if (elapsedMillis >= 2 * d)
204	>	tryLongerDelay.set(true);
205	>	}
206	>	previous.set(now);
207	>	done.countDown();
208	>	}};
209	>	final ScheduledFuture periodicTask =
210	>	p.scheduleWithFixedDelay(task, 0, delay, MILLISECONDS);
211	>	final int totalDelayMillis = (cycles - 1) * delay;
212	>	await(done, totalDelayMillis + cycles * LONG_DELAY_MS);
213	>	periodicTask.cancel(true);
214	>	final long elapsedMillis = millisElapsedSince(startTime);
215	>	assertTrue(elapsedMillis >= totalDelayMillis);
216	>	if (!tryLongerDelay.get())
217	>	return;
218	>	// else retry with longer delay
219	>	}
220	>	fail("unexpected execution rate");
221	>	}
222	>	}
223	>
224	>	/**
225	>	* execute(null) throws NPE
226		*/
227	<	public void testExecuteNull() {
228	<	ScheduledThreadPoolExecutor se = null;
229	<	try {
230	<	se = new ScheduledThreadPoolExecutor(1);
231	<	se.execute(null);
232	<	shouldThrow();
233	<	} catch(NullPointerException success){}
136	<	catch(Exception e){
137	<	unexpectedException();
227	>	public void testExecuteNull() throws InterruptedException {
228	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
229	>	try (PoolCleaner cleaner = cleaner(p)) {
230	>	try {
231	>	p.execute(null);
232	>	shouldThrow();
233	>	} catch (NullPointerException success) {}
234		}
139	–
140	–	joinPool(se);
235		}
236
237		/**
238	<	* schedule (null) throws NPE
238	>	* schedule(null) throws NPE
239		*/
240	<	public void testScheduleNull() {
241	<	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
242	<	try {
243	<	TrackedCallable callable = null;
244	<	Future f = se.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
245	<	shouldThrow();
246	<	} catch(NullPointerException success){}
247	<	catch(Exception e){
154	<	unexpectedException();
240	>	public void testScheduleNull() throws InterruptedException {
241	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
242	>	try (PoolCleaner cleaner = cleaner(p)) {
243	>	try {
244	>	TrackedCallable callable = null;
245	>	Future f = p.schedule(callable, SHORT_DELAY_MS, MILLISECONDS);
246	>	shouldThrow();
247	>	} catch (NullPointerException success) {}
248		}
156	–	joinPool(se);
249		}
250	<
250	>
251		/**
252		* execute throws RejectedExecutionException if shutdown
253		*/
254	<	public void testSchedule1_RejectedExecutionException() {
255	<	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
256	<	try {
257	<	se.shutdown();
258	<	se.schedule(new NoOpRunnable(),
259	<	MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
260	<	shouldThrow();
261	<	} catch(RejectedExecutionException success){
254	>	public void testSchedule1_RejectedExecutionException() throws InterruptedException {
255	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
256	>	try (PoolCleaner cleaner = cleaner(p)) {
257	>	try {
258	>	p.shutdown();
259	>	p.schedule(new NoOpRunnable(),
260	>	MEDIUM_DELAY_MS, MILLISECONDS);
261	>	shouldThrow();
262	>	} catch (RejectedExecutionException success) {
263	>	} catch (SecurityException ok) {}
264		}
171	–	joinPool(se);
172	–
265		}
266
267		/**
268		* schedule throws RejectedExecutionException if shutdown
269		*/
270	<	public void testSchedule2_RejectedExecutionException() {
271	<	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
272	<	try {
273	<	se.shutdown();
274	<	se.schedule(new NoOpCallable(),
275	<	MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
276	<	shouldThrow();
277	<	} catch(RejectedExecutionException success){
270	>	public void testSchedule2_RejectedExecutionException() throws InterruptedException {
271	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
272	>	try (PoolCleaner cleaner = cleaner(p)) {
273	>	try {
274	>	p.shutdown();
275	>	p.schedule(new NoOpCallable(),
276	>	MEDIUM_DELAY_MS, MILLISECONDS);
277	>	shouldThrow();
278	>	} catch (RejectedExecutionException success) {
279	>	} catch (SecurityException ok) {}
280		}
187	–	joinPool(se);
281		}
282
283		/**
284		* schedule callable throws RejectedExecutionException if shutdown
285		*/
286	<	public void testSchedule3_RejectedExecutionException() {
287	<	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
288	<	try {
289	<	se.shutdown();
290	<	se.schedule(new NoOpCallable(),
291	<	MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
292	<	shouldThrow();
293	<	} catch(RejectedExecutionException success){
294	<	}
295	<	joinPool(se);
286	>	public void testSchedule3_RejectedExecutionException() throws InterruptedException {
287	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
288	>	try (PoolCleaner cleaner = cleaner(p)) {
289	>	try {
290	>	p.shutdown();
291	>	p.schedule(new NoOpCallable(),
292	>	MEDIUM_DELAY_MS, MILLISECONDS);
293	>	shouldThrow();
294	>	} catch (RejectedExecutionException success) {
295	>	} catch (SecurityException ok) {}
296	>	}
297		}
298
299		/**
300	<	*  scheduleAtFixedRate throws RejectedExecutionException if shutdown
301	<	*/
302	<	public void testScheduleAtFixedRate1_RejectedExecutionException() {
303	<	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
304	<	try {
305	<	se.shutdown();
306	<	se.scheduleAtFixedRate(new NoOpRunnable(),
307	<	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
308	<	shouldThrow();
309	<	} catch(RejectedExecutionException success){
310	<	}
311	<	joinPool(se);
300	>	* scheduleAtFixedRate throws RejectedExecutionException if shutdown
301	>	*/
302	>	public void testScheduleAtFixedRate1_RejectedExecutionException() throws InterruptedException {
303	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
304	>	try (PoolCleaner cleaner = cleaner(p)) {
305	>	try {
306	>	p.shutdown();
307	>	p.scheduleAtFixedRate(new NoOpRunnable(),
308	>	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS);
309	>	shouldThrow();
310	>	} catch (RejectedExecutionException success) {
311	>	} catch (SecurityException ok) {}
312	>	}
313		}
314	<
314	>
315		/**
316		* scheduleWithFixedDelay throws RejectedExecutionException if shutdown
317		*/
318	<	public void testScheduleWithFixedDelay1_RejectedExecutionException() {
319	<	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
320	<	try {
321	<	se.shutdown();
322	<	se.scheduleWithFixedDelay(new NoOpRunnable(),
323	<	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
324	<	shouldThrow();
325	<	} catch(RejectedExecutionException success){
326	<	}
327	<	joinPool(se);
318	>	public void testScheduleWithFixedDelay1_RejectedExecutionException() throws InterruptedException {
319	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
320	>	try (PoolCleaner cleaner = cleaner(p)) {
321	>	try {
322	>	p.shutdown();
323	>	p.scheduleWithFixedDelay(new NoOpRunnable(),
324	>	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS);
325	>	shouldThrow();
326	>	} catch (RejectedExecutionException success) {
327	>	} catch (SecurityException ok) {}
328	>	}
329		}
330
331		/**
332	<	*  getActiveCount increases but doesn't overestimate, when a
333	<	*  thread becomes active
334	<	*/
335	<	public void testGetActiveCount() {
336	<	ScheduledThreadPoolExecutor p2 = new ScheduledThreadPoolExecutor(2);
337	<	assertEquals(0, p2.getActiveCount());
338	<	p2.execute(new SmallRunnable());
339	<	try {
340	<	Thread.sleep(SHORT_DELAY_MS);
341	<	} catch(Exception e){
342	<	unexpectedException();
343	<	}
344	<	assertEquals(1, p2.getActiveCount());
345	<	joinPool(p2);
346	<	}
347	<
348	<	/**
253	<	*    getCompletedTaskCount increases, but doesn't overestimate,
254	<	*   when tasks complete
255	<	*/
256	<	public void testGetCompletedTaskCount() {
257	<	ScheduledThreadPoolExecutor p2 = new ScheduledThreadPoolExecutor(2);
258	<	assertEquals(0, p2.getCompletedTaskCount());
259	<	p2.execute(new SmallRunnable());
260	<	try {
261	<	Thread.sleep(MEDIUM_DELAY_MS);
262	<	} catch(Exception e){
263	<	unexpectedException();
332	>	* getActiveCount increases but doesn't overestimate, when a
333	>	* thread becomes active
334	>	*/
335	>	public void testGetActiveCount() throws InterruptedException {
336	>	final CountDownLatch done = new CountDownLatch(1);
337	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(2);
338	>	try (PoolCleaner cleaner = cleaner(p, done)) {
339	>	final CountDownLatch threadStarted = new CountDownLatch(1);
340	>	assertEquals(0, p.getActiveCount());
341	>	p.execute(new CheckedRunnable() {
342	>	public void realRun() throws InterruptedException {
343	>	threadStarted.countDown();
344	>	assertEquals(1, p.getActiveCount());
345	>	await(done);
346	>	}});
347	>	await(threadStarted);
348	>	assertEquals(1, p.getActiveCount());
349		}
265	–	assertEquals(1, p2.getCompletedTaskCount());
266	–	joinPool(p2);
350		}
351	<
351	>
352		/**
353	<	*  getCorePoolSize returns size given in constructor if not otherwise set
354	<	*/
355	<	public void testGetCorePoolSize() {
356	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
357	<	assertEquals(1, p1.getCorePoolSize());
358	<	joinPool(p1);
353	>	* getCompletedTaskCount increases, but doesn't overestimate,
354	>	* when tasks complete
355	>	*/
356	>	public void testGetCompletedTaskCount() throws InterruptedException {
357	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(2);
358	>	try (PoolCleaner cleaner = cleaner(p)) {
359	>	final CountDownLatch threadStarted = new CountDownLatch(1);
360	>	final CountDownLatch threadProceed = new CountDownLatch(1);
361	>	final CountDownLatch threadDone = new CountDownLatch(1);
362	>	assertEquals(0, p.getCompletedTaskCount());
363	>	p.execute(new CheckedRunnable() {
364	>	public void realRun() throws InterruptedException {
365	>	threadStarted.countDown();
366	>	assertEquals(0, p.getCompletedTaskCount());
367	>	await(threadProceed);
368	>	threadDone.countDown();
369	>	}});
370	>	await(threadStarted);
371	>	assertEquals(0, p.getCompletedTaskCount());
372	>	threadProceed.countDown();
373	>	await(threadDone);
374	>	long startTime = System.nanoTime();
375	>	while (p.getCompletedTaskCount() != 1) {
376	>	if (millisElapsedSince(startTime) > LONG_DELAY_MS)
377	>	fail("timed out");
378	>	Thread.yield();
379	>	}
380	>	}
381		}
382	<
382	>
383		/**
384	<	*    getLargestPoolSize increases, but doesn't overestimate, when
280	<	*   multiple threads active
384	>	* getCorePoolSize returns size given in constructor if not otherwise set
385		*/
386	<	public void testGetLargestPoolSize() {
387	<	ScheduledThreadPoolExecutor p2 = new ScheduledThreadPoolExecutor(2);
388	<	assertEquals(0, p2.getLargestPoolSize());
389	<	p2.execute(new SmallRunnable());
390	<	p2.execute(new SmallRunnable());
391	<	try {
392	<	Thread.sleep(SHORT_DELAY_MS);
393	<	} catch(Exception e){
394	<	unexpectedException();
395	<	}
396	<	assertEquals(2, p2.getLargestPoolSize());
397	<	joinPool(p2);
398	<	}
399	<
400	<	/**
401	<	*   getPoolSize increases, but doesn't overestimate, when threads
402	<	*   become active
403	<	*/
404	<	public void testGetPoolSize() {
405	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
406	<	assertEquals(0, p1.getPoolSize());
407	<	p1.execute(new SmallRunnable());
408	<	assertEquals(1, p1.getPoolSize());
409	<	joinPool(p1);
410	<	}
411	<
412	<	/**
413	<	*    getTaskCount increases, but doesn't overestimate, when tasks
414	<	*    submitted
415	<	*/
416	<	public void testGetTaskCount() {
417	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
418	<	assertEquals(0, p1.getTaskCount());
419	<	for(int i = 0; i < 5; i++)
420	<	p1.execute(new SmallRunnable());
421	<	try {
422	<	Thread.sleep(SHORT_DELAY_MS);
423	<	} catch(Exception e){
424	<	unexpectedException();
386	>	public void testGetCorePoolSize() throws InterruptedException {
387	>	ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
388	>	try (PoolCleaner cleaner = cleaner(p)) {
389	>	assertEquals(1, p.getCorePoolSize());
390	>	}
391	>	}
392	>
393	>	/**
394	>	* getLargestPoolSize increases, but doesn't overestimate, when
395	>	* multiple threads active
396	>	*/
397	>	public void testGetLargestPoolSize() throws InterruptedException {
398	>	final int THREADS = 3;
399	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(THREADS);
400	>	final CountDownLatch threadsStarted = new CountDownLatch(THREADS);
401	>	final CountDownLatch done = new CountDownLatch(1);
402	>	try (PoolCleaner cleaner = cleaner(p, done)) {
403	>	assertEquals(0, p.getLargestPoolSize());
404	>	for (int i = 0; i < THREADS; i++)
405	>	p.execute(new CheckedRunnable() {
406	>	public void realRun() throws InterruptedException {
407	>	threadsStarted.countDown();
408	>	await(done);
409	>	assertEquals(THREADS, p.getLargestPoolSize());
410	>	}});
411	>	await(threadsStarted);
412	>	assertEquals(THREADS, p.getLargestPoolSize());
413	>	}
414	>	assertEquals(THREADS, p.getLargestPoolSize());
415	>	}
416	>
417	>	/**
418	>	* getPoolSize increases, but doesn't overestimate, when threads
419	>	* become active
420	>	*/
421	>	public void testGetPoolSize() throws InterruptedException {
422	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
423	>	final CountDownLatch threadStarted = new CountDownLatch(1);
424	>	final CountDownLatch done = new CountDownLatch(1);
425	>	try (PoolCleaner cleaner = cleaner(p, done)) {
426	>	assertEquals(0, p.getPoolSize());
427	>	p.execute(new CheckedRunnable() {
428	>	public void realRun() throws InterruptedException {
429	>	threadStarted.countDown();
430	>	assertEquals(1, p.getPoolSize());
431	>	await(done);
432	>	}});
433	>	await(threadStarted);
434	>	assertEquals(1, p.getPoolSize());
435	>	}
436	>	}
437	>
438	>	/**
439	>	* getTaskCount increases, but doesn't overestimate, when tasks
440	>	* submitted
441	>	*/
442	>	public void testGetTaskCount() throws InterruptedException {
443	>	final int TASKS = 3;
444	>	final CountDownLatch done = new CountDownLatch(1);
445	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
446	>	try (PoolCleaner cleaner = cleaner(p, done)) {
447	>	final CountDownLatch threadStarted = new CountDownLatch(1);
448	>	assertEquals(0, p.getTaskCount());
449	>	assertEquals(0, p.getCompletedTaskCount());
450	>	p.execute(new CheckedRunnable() {
451	>	public void realRun() throws InterruptedException {
452	>	threadStarted.countDown();
453	>	await(done);
454	>	}});
455	>	await(threadStarted);
456	>	assertEquals(1, p.getTaskCount());
457	>	assertEquals(0, p.getCompletedTaskCount());
458	>	for (int i = 0; i < TASKS; i++) {
459	>	assertEquals(1 + i, p.getTaskCount());
460	>	p.execute(new CheckedRunnable() {
461	>	public void realRun() throws InterruptedException {
462	>	threadStarted.countDown();
463	>	assertEquals(1 + TASKS, p.getTaskCount());
464	>	await(done);
465	>	}});
466	>	}
467	>	assertEquals(1 + TASKS, p.getTaskCount());
468	>	assertEquals(0, p.getCompletedTaskCount());
469		}
470	<	assertEquals(5, p1.getTaskCount());
471	<	joinPool(p1);
470	>	assertEquals(1 + TASKS, p.getTaskCount());
471	>	assertEquals(1 + TASKS, p.getCompletedTaskCount());
472		}
473
474	<	/**
474	>	/**
475		* getThreadFactory returns factory in constructor if not set
476		*/
477	<	public void testGetThreadFactory() {
478	<	ThreadFactory tf = new SimpleThreadFactory();
479	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1, tf);
480	<	assertSame(tf, p.getThreadFactory());
481	<	p.shutdown();
482	<	joinPool(p);
477	>	public void testGetThreadFactory() throws InterruptedException {
478	>	final ThreadFactory threadFactory = new SimpleThreadFactory();
479	>	final ScheduledThreadPoolExecutor p =
480	>	new ScheduledThreadPoolExecutor(1, threadFactory);
481	>	try (PoolCleaner cleaner = cleaner(p)) {
482	>	assertSame(threadFactory, p.getThreadFactory());
483	>	}
484		}
485
486	<	/**
486	>	/**
487		* setThreadFactory sets the thread factory returned by getThreadFactory
488		*/
489	<	public void testSetThreadFactory() {
490	<	ThreadFactory tf = new SimpleThreadFactory();
491	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
492	<	p.setThreadFactory(tf);
493	<	assertSame(tf, p.getThreadFactory());
494	<	p.shutdown();
495	<	joinPool(p);
489	>	public void testSetThreadFactory() throws InterruptedException {
490	>	ThreadFactory threadFactory = new SimpleThreadFactory();
491	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
492	>	try (PoolCleaner cleaner = cleaner(p)) {
493	>	p.setThreadFactory(threadFactory);
494	>	assertSame(threadFactory, p.getThreadFactory());
495	>	}
496		}
497
498	<	/**
498	>	/**
499		* setThreadFactory(null) throws NPE
500		*/
501	<	public void testSetThreadFactoryNull() {
502	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
503	<	try {
504	<	p.setThreadFactory(null);
505	<	shouldThrow();
506	<	} catch (NullPointerException success) {
507	<	} finally {
359	<	joinPool(p);
501	>	public void testSetThreadFactoryNull() throws InterruptedException {
502	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
503	>	try (PoolCleaner cleaner = cleaner(p)) {
504	>	try {
505	>	p.setThreadFactory(null);
506	>	shouldThrow();
507	>	} catch (NullPointerException success) {}
508		}
509		}
510	<
510	>
511		/**
512	<	*   is isShutDown is false before shutdown, true after
512	>	* The default rejected execution handler is AbortPolicy.
513		*/
514	<	public void testIsShutdown() {
515	<
516	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
517	<	try {
518	<	assertFalse(p1.isShutdown());
371	<	}
372	<	finally {
373	<	p1.shutdown();
514	>	public void testDefaultRejectedExecutionHandler() {
515	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
516	>	try (PoolCleaner cleaner = cleaner(p)) {
517	>	assertTrue(p.getRejectedExecutionHandler()
518	>	instanceof ThreadPoolExecutor.AbortPolicy);
519		}
375	–	assertTrue(p1.isShutdown());
520		}
521
378	–
522		/**
523	<	*   isTerminated is false before termination, true after
523	>	* isShutdown is false before shutdown, true after
524		*/
525	<	public void testIsTerminated() {
526	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
527	<	try {
528	<	p1.execute(new SmallRunnable());
529	<	} finally {
530	<	p1.shutdown();
525	>	public void testIsShutdown() {
526	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
527	>	assertFalse(p.isShutdown());
528	>	try (PoolCleaner cleaner = cleaner(p)) {
529	>	try {
530	>	p.shutdown();
531	>	assertTrue(p.isShutdown());
532	>	} catch (SecurityException ok) {}
533		}
389	–	try {
390	–	assertTrue(p1.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
391	–	assertTrue(p1.isTerminated());
392	–	} catch(Exception e){
393	–	unexpectedException();
394	–	}
534		}
535
536		/**
537	<	*  isTerminating is not true when running or when terminated
538	<	*/
539	<	public void testIsTerminating() {
540	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
541	<	assertFalse(p1.isTerminating());
542	<	try {
543	<	p1.execute(new SmallRunnable());
544	<	assertFalse(p1.isTerminating());
545	<	} finally {
546	<	p1.shutdown();
537	>	* isTerminated is false before termination, true after
538	>	*/
539	>	public void testIsTerminated() throws InterruptedException {
540	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
541	>	try (PoolCleaner cleaner = cleaner(p)) {
542	>	final CountDownLatch threadStarted = new CountDownLatch(1);
543	>	final CountDownLatch done = new CountDownLatch(1);
544	>	assertFalse(p.isTerminated());
545	>	p.execute(new CheckedRunnable() {
546	>	public void realRun() throws InterruptedException {
547	>	assertFalse(p.isTerminated());
548	>	threadStarted.countDown();
549	>	await(done);
550	>	}});
551	>	await(threadStarted);
552	>	assertFalse(p.isTerminating());
553	>	done.countDown();
554	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
555	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
556	>	assertTrue(p.isTerminated());
557	>	}
558	>	}
559	>
560	>	/**
561	>	* isTerminating is not true when running or when terminated
562	>	*/
563	>	public void testIsTerminating() throws InterruptedException {
564	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
565	>	final CountDownLatch threadStarted = new CountDownLatch(1);
566	>	final CountDownLatch done = new CountDownLatch(1);
567	>	try (PoolCleaner cleaner = cleaner(p)) {
568	>	assertFalse(p.isTerminating());
569	>	p.execute(new CheckedRunnable() {
570	>	public void realRun() throws InterruptedException {
571	>	assertFalse(p.isTerminating());
572	>	threadStarted.countDown();
573	>	await(done);
574	>	}});
575	>	await(threadStarted);
576	>	assertFalse(p.isTerminating());
577	>	done.countDown();
578	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
579	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
580	>	assertTrue(p.isTerminated());
581	>	assertFalse(p.isTerminating());
582		}
409	–	try {
410	–	assertTrue(p1.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
411	–	assertTrue(p1.isTerminated());
412	–	assertFalse(p1.isTerminating());
413	–	} catch(Exception e){
414	–	unexpectedException();
415	–	}
583		}
584
585		/**
586		* getQueue returns the work queue, which contains queued tasks
587		*/
588	<	public void testGetQueue() {
589	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
590	<	ScheduledFuture[] tasks = new ScheduledFuture[5];
591	<	for(int i = 0; i < 5; i++){
592	<	tasks[i] = p1.schedule(new SmallPossiblyInterruptedRunnable(), 1, TimeUnit.MILLISECONDS);
593	<	}
594	<	try {
595	<	Thread.sleep(SHORT_DELAY_MS);
596	<	BlockingQueue<Runnable> q = p1.getQueue();
597	<	assertTrue(q.contains(tasks[4]));
588	>	public void testGetQueue() throws InterruptedException {
589	>	final CountDownLatch done = new CountDownLatch(1);
590	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
591	>	try (PoolCleaner cleaner = cleaner(p, done)) {
592	>	final CountDownLatch threadStarted = new CountDownLatch(1);
593	>	ScheduledFuture[] tasks = new ScheduledFuture[5];
594	>	for (int i = 0; i < tasks.length; i++) {
595	>	Runnable r = new CheckedRunnable() {
596	>	public void realRun() throws InterruptedException {
597	>	threadStarted.countDown();
598	>	await(done);
599	>	}};
600	>	tasks[i] = p.schedule(r, 1, MILLISECONDS);
601	>	}
602	>	await(threadStarted);
603	>	BlockingQueue<Runnable> q = p.getQueue();
604	>	assertTrue(q.contains(tasks[tasks.length - 1]));
605		assertFalse(q.contains(tasks[0]));
432	–	p1.shutdownNow();
433	–	} catch(Exception e) {
434	–	unexpectedException();
435	–	} finally {
436	–	joinPool(p1);
606		}
607		}
608
609		/**
610		* remove(task) removes queued task, and fails to remove active task
611		*/
612	<	public void testRemove() {
613	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
614	<	ScheduledFuture[] tasks = new ScheduledFuture[5];
615	<	for(int i = 0; i < 5; i++){
616	<	tasks[i] = p1.schedule(new SmallPossiblyInterruptedRunnable(), 1, TimeUnit.MILLISECONDS);
617	<	}
618	<	try {
619	<	Thread.sleep(SHORT_DELAY_MS);
620	<	BlockingQueue<Runnable> q = p1.getQueue();
621	<	assertFalse(p1.remove((Runnable)tasks[0]));
612	>	public void testRemove() throws InterruptedException {
613	>	final CountDownLatch done = new CountDownLatch(1);
614	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
615	>	try (PoolCleaner cleaner = cleaner(p, done)) {
616	>	ScheduledFuture[] tasks = new ScheduledFuture[5];
617	>	final CountDownLatch threadStarted = new CountDownLatch(1);
618	>	for (int i = 0; i < tasks.length; i++) {
619	>	Runnable r = new CheckedRunnable() {
620	>	public void realRun() throws InterruptedException {
621	>	threadStarted.countDown();
622	>	await(done);
623	>	}};
624	>	tasks[i] = p.schedule(r, 1, MILLISECONDS);
625	>	}
626	>	await(threadStarted);
627	>	BlockingQueue<Runnable> q = p.getQueue();
628	>	assertFalse(p.remove((Runnable)tasks[0]));
629		assertTrue(q.contains((Runnable)tasks[4]));
630		assertTrue(q.contains((Runnable)tasks[3]));
631	<	assertTrue(p1.remove((Runnable)tasks[4]));
632	<	assertFalse(p1.remove((Runnable)tasks[4]));
631	>	assertTrue(p.remove((Runnable)tasks[4]));
632	>	assertFalse(p.remove((Runnable)tasks[4]));
633		assertFalse(q.contains((Runnable)tasks[4]));
634		assertTrue(q.contains((Runnable)tasks[3]));
635	<	assertTrue(p1.remove((Runnable)tasks[3]));
635	>	assertTrue(p.remove((Runnable)tasks[3]));
636		assertFalse(q.contains((Runnable)tasks[3]));
461	–	p1.shutdownNow();
462	–	} catch(Exception e) {
463	–	unexpectedException();
464	–	} finally {
465	–	joinPool(p1);
637		}
638		}
639
640		/**
641	<	*  purge removes cancelled tasks from the queue
641	>	* purge eventually removes cancelled tasks from the queue
642		*/
643	<	public void testPurge() {
644	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
645	<	ScheduledFuture[] tasks = new ScheduledFuture[5];
646	<	for(int i = 0; i < 5; i++){
647	<	tasks[i] = p1.schedule(new SmallPossiblyInterruptedRunnable(), 1, TimeUnit.MILLISECONDS);
643	>	public void testPurge() throws InterruptedException {
644	>	final ScheduledFuture[] tasks = new ScheduledFuture[5];
645	>	final Runnable releaser = new Runnable() { public void run() {
646	>	for (ScheduledFuture task : tasks)
647	>	if (task != null) task.cancel(true); }};
648	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
649	>	try (PoolCleaner cleaner = cleaner(p, releaser)) {
650	>	for (int i = 0; i < tasks.length; i++)
651	>	tasks[i] = p.schedule(new SmallPossiblyInterruptedRunnable(),
652	>	LONG_DELAY_MS, MILLISECONDS);
653	>	int max = tasks.length;
654	>	if (tasks[4].cancel(true)) --max;
655	>	if (tasks[3].cancel(true)) --max;
656	>	// There must eventually be an interference-free point at
657	>	// which purge will not fail. (At worst, when queue is empty.)
658	>	long startTime = System.nanoTime();
659	>	do {
660	>	p.purge();
661	>	long count = p.getTaskCount();
662	>	if (count == max)
663	>	return;
664	>	} while (millisElapsedSince(startTime) < LONG_DELAY_MS);
665	>	fail("Purge failed to remove cancelled tasks");
666	>	}
667	>	}
668	>
669	>	/**
670	>	* shutdownNow returns a list containing tasks that were not run,
671	>	* and those tasks are drained from the queue
672	>	*/
673	>	public void testShutdownNow() throws InterruptedException {
674	>	final int poolSize = 2;
675	>	final int count = 5;
676	>	final AtomicInteger ran = new AtomicInteger(0);
677	>	final ScheduledThreadPoolExecutor p =
678	>	new ScheduledThreadPoolExecutor(poolSize);
679	>	final CountDownLatch threadsStarted = new CountDownLatch(poolSize);
680	>	Runnable waiter = new CheckedRunnable() { public void realRun() {
681	>	threadsStarted.countDown();
682	>	try {
683	>	MILLISECONDS.sleep(2 * LONG_DELAY_MS);
684	>	} catch (InterruptedException success) {}
685	>	ran.getAndIncrement();
686	>	}};
687	>	for (int i = 0; i < count; i++)
688	>	p.execute(waiter);
689	>	await(threadsStarted);
690	>	assertEquals(poolSize, p.getActiveCount());
691	>	assertEquals(0, p.getCompletedTaskCount());
692	>	final List<Runnable> queuedTasks;
693	>	try {
694	>	queuedTasks = p.shutdownNow();
695	>	} catch (SecurityException ok) {
696	>	return; // Allowed in case test doesn't have privs
697	>	}
698	>	assertTrue(p.isShutdown());
699	>	assertTrue(p.getQueue().isEmpty());
700	>	assertEquals(count - poolSize, queuedTasks.size());
701	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
702	>	assertTrue(p.isTerminated());
703	>	assertEquals(poolSize, ran.get());
704	>	assertEquals(poolSize, p.getCompletedTaskCount());
705	>	}
706	>
707	>	/**
708	>	* shutdownNow returns a list containing tasks that were not run,
709	>	* and those tasks are drained from the queue
710	>	*/
711	>	public void testShutdownNow_delayedTasks() throws InterruptedException {
712	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
713	>	List<ScheduledFuture> tasks = new ArrayList<>();
714	>	for (int i = 0; i < 3; i++) {
715	>	Runnable r = new NoOpRunnable();
716	>	tasks.add(p.schedule(r, 9, SECONDS));
717	>	tasks.add(p.scheduleAtFixedRate(r, 9, 9, SECONDS));
718	>	tasks.add(p.scheduleWithFixedDelay(r, 9, 9, SECONDS));
719	>	}
720	>	if (testImplementationDetails)
721	>	assertEquals(new HashSet(tasks), new HashSet(p.getQueue()));
722	>	final List<Runnable> queuedTasks;
723	>	try {
724	>	queuedTasks = p.shutdownNow();
725	>	} catch (SecurityException ok) {
726	>	return; // Allowed in case test doesn't have privs
727	>	}
728	>	assertTrue(p.isShutdown());
729	>	assertTrue(p.getQueue().isEmpty());
730	>	if (testImplementationDetails)
731	>	assertEquals(new HashSet(tasks), new HashSet(queuedTasks));
732	>	assertEquals(tasks.size(), queuedTasks.size());
733	>	for (ScheduledFuture task : tasks) {
734	>	assertFalse(task.isDone());
735	>	assertFalse(task.isCancelled());
736		}
737	<	int max = 5;
738	<	if (tasks[4].cancel(true)) --max;
480	<	if (tasks[3].cancel(true)) --max;
481	<	p1.purge();
482	<	long count = p1.getTaskCount();
483	<	assertTrue(count > 0 && count <= max);
484	<	joinPool(p1);
737	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
738	>	assertTrue(p.isTerminated());
739		}
740
741		/**
742	<	*  shutDownNow returns a list containing tasks that were not run
743	<	*/
744	<	public void testShutDownNow() {
745	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
746	<	for(int i = 0; i < 5; i++)
747	<	p1.schedule(new SmallPossiblyInterruptedRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
748	<	List l = p1.shutdownNow();
749	<	assertTrue(p1.isShutdown());
750	<	assertTrue(l.size() > 0 && l.size() <= 5);
751	<	joinPool(p1);
752	<	}
753	<
754	<	/**
755	<	* In default setting, shutdown cancels periodic but not delayed
756	<	* tasks at shutdown
757	<	*/
758	<	public void testShutDown1() {
759	<	try {
760	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
761	<	assertTrue(p1.getExecuteExistingDelayedTasksAfterShutdownPolicy());
762	<	assertFalse(p1.getContinueExistingPeriodicTasksAfterShutdownPolicy());
763	<
764	<	ScheduledFuture[] tasks = new ScheduledFuture[5];
765	<	for(int i = 0; i < 5; i++)
766	<	tasks[i] = p1.schedule(new NoOpRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
767	<	p1.shutdown();
768	<	BlockingQueue q = p1.getQueue();
769	<	for (Iterator it = q.iterator(); it.hasNext();) {
770	<	ScheduledFuture t = (ScheduledFuture)it.next();
771	<	assertFalse(t.isCancelled());
772	<	}
773	<	assertTrue(p1.isShutdown());
774	<	Thread.sleep(SMALL_DELAY_MS);
775	<	for (int i = 0; i < 5; ++i) {
776	<	assertTrue(tasks[i].isDone());
777	<	assertFalse(tasks[i].isCancelled());
742	>	* By default, periodic tasks are cancelled at shutdown.
743	>	* By default, delayed tasks keep running after shutdown.
744	>	* Check that changing the default values work:
745	>	* - setExecuteExistingDelayedTasksAfterShutdownPolicy
746	>	* - setContinueExistingPeriodicTasksAfterShutdownPolicy
747	>	*/
748	>	public void testShutdown_cancellation() throws Exception {
749	>	final int poolSize = 6;
750	>	final ScheduledThreadPoolExecutor p
751	>	= new ScheduledThreadPoolExecutor(poolSize);
752	>	final BlockingQueue<Runnable> q = p.getQueue();
753	>	final ThreadLocalRandom rnd = ThreadLocalRandom.current();
754	>	final boolean effectiveDelayedPolicy;
755	>	final boolean effectivePeriodicPolicy;
756	>	final boolean effectiveRemovePolicy;
757	>
758	>	if (rnd.nextBoolean())
759	>	p.setExecuteExistingDelayedTasksAfterShutdownPolicy(
760	>	effectiveDelayedPolicy = rnd.nextBoolean());
761	>	else
762	>	effectiveDelayedPolicy = true;
763	>	assertEquals(effectiveDelayedPolicy,
764	>	p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
765	>
766	>	if (rnd.nextBoolean())
767	>	p.setContinueExistingPeriodicTasksAfterShutdownPolicy(
768	>	effectivePeriodicPolicy = rnd.nextBoolean());
769	>	else
770	>	effectivePeriodicPolicy = false;
771	>	assertEquals(effectivePeriodicPolicy,
772	>	p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
773	>
774	>	if (rnd.nextBoolean())
775	>	p.setRemoveOnCancelPolicy(
776	>	effectiveRemovePolicy = rnd.nextBoolean());
777	>	else
778	>	effectiveRemovePolicy = false;
779	>	assertEquals(effectiveRemovePolicy,
780	>	p.getRemoveOnCancelPolicy());
781	>
782	>	final boolean periodicTasksContinue = effectivePeriodicPolicy && rnd.nextBoolean();
783	>
784	>	// Strategy: Wedge the pool with one wave of "blocker" tasks,
785	>	// then add a second wave that waits in the queue until unblocked.
786	>	final AtomicInteger ran = new AtomicInteger(0);
787	>	final CountDownLatch poolBlocked = new CountDownLatch(poolSize);
788	>	final CountDownLatch unblock = new CountDownLatch(1);
789	>	final RuntimeException exception = new RuntimeException();
790	>
791	>	class Task implements Runnable {
792	>	public void run() {
793	>	try {
794	>	ran.getAndIncrement();
795	>	poolBlocked.countDown();
796	>	await(unblock);
797	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
798		}
525	–
799		}
527	–	catch(Exception ex) {
528	–	unexpectedException();
529	–	}
530	–	}
531	–
800
801	<	/**
802	<	* If setExecuteExistingDelayedTasksAfterShutdownPolicy is false,
803	<	* delayed tasks are cancelled at shutdown
804	<	*/
805	<	public void testShutDown2() {
806	<	try {
807	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
808	<	p1.setExecuteExistingDelayedTasksAfterShutdownPolicy(false);
809	<	ScheduledFuture[] tasks = new ScheduledFuture[5];
542	<	for(int i = 0; i < 5; i++)
543	<	tasks[i] = p1.schedule(new NoOpRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
544	<	p1.shutdown();
545	<	assertTrue(p1.isShutdown());
546	<	BlockingQueue q = p1.getQueue();
547	<	assertTrue(q.isEmpty());
548	<	Thread.sleep(SMALL_DELAY_MS);
549	<	assertTrue(p1.isTerminated());
550	<	}
551	<	catch(Exception ex) {
552	<	unexpectedException();
801	>	class PeriodicTask extends Task {
802	>	PeriodicTask(int rounds) { this.rounds = rounds; }
803	>	int rounds;
804	>	public void run() {
805	>	if (--rounds == 0) super.run();
806	>	// throw exception to surely terminate this periodic task,
807	>	// but in a separate execution and in a detectable way.
808	>	if (rounds == -1) throw exception;
809	>	}
810		}
554	–	}
811
812	+	Runnable task = new Task();
813
814	<	/**
815	<	* If setContinueExistingPeriodicTasksAfterShutdownPolicy is set false,
816	<	* periodic tasks are not cancelled at shutdown
817	<	*/
818	<	public void testShutDown3() {
819	<	try {
820	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
821	<	p1.setContinueExistingPeriodicTasksAfterShutdownPolicy(false);
822	<	ScheduledFuture task =
823	<	p1.scheduleAtFixedRate(new NoOpRunnable(), 5, 5, TimeUnit.MILLISECONDS);
824	<	p1.shutdown();
825	<	assertTrue(p1.isShutdown());
826	<	BlockingQueue q = p1.getQueue();
827	<	assertTrue(q.isEmpty());
828	<	Thread.sleep(SHORT_DELAY_MS);
829	<	assertTrue(p1.isTerminated());
830	<	}
831	<	catch(Exception ex) {
832	<	unexpectedException();
814	>	List<Future<?>> immediates = new ArrayList<>();
815	>	List<Future<?>> delayeds   = new ArrayList<>();
816	>	List<Future<?>> periodics  = new ArrayList<>();
817	>
818	>	immediates.add(p.submit(task));
819	>	delayeds.add(p.schedule(task, 1, MILLISECONDS));
820	>	for (int rounds : new int[] { 1, 2 }) {
821	>	periodics.add(p.scheduleAtFixedRate(
822	>	new PeriodicTask(rounds), 1, 1, MILLISECONDS));
823	>	periodics.add(p.scheduleWithFixedDelay(
824	>	new PeriodicTask(rounds), 1, 1, MILLISECONDS));
825	>	}
826	>
827	>	await(poolBlocked);
828	>
829	>	assertEquals(poolSize, ran.get());
830	>	assertTrue(q.isEmpty());
831	>
832	>	// Add second wave of tasks.
833	>	immediates.add(p.submit(task));
834	>	long delay_ms = effectiveDelayedPolicy ? 1 : LONG_DELAY_MS;
835	>	delayeds.add(p.schedule(task, delay_ms, MILLISECONDS));
836	>	for (int rounds : new int[] { 1, 2 }) {
837	>	periodics.add(p.scheduleAtFixedRate(
838	>	new PeriodicTask(rounds), 1, 1, MILLISECONDS));
839	>	periodics.add(p.scheduleWithFixedDelay(
840	>	new PeriodicTask(rounds), 1, 1, MILLISECONDS));
841	>	}
842	>
843	>	assertEquals(poolSize, q.size());
844	>	assertEquals(poolSize, ran.get());
845	>
846	>	immediates.forEach(
847	>	f -> assertTrue(((ScheduledFuture)f).getDelay(NANOSECONDS) <= 0L));
848	>
849	>	Stream.of(immediates, delayeds, periodics).flatMap(c -> c.stream())
850	>	.forEach(f -> assertFalse(f.isDone()));
851	>
852	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
853	>	assertTrue(p.isShutdown());
854	>	assertTrue(p.isTerminating());
855	>	assertFalse(p.isTerminated());
856	>
857	>	if (rnd.nextBoolean())
858	>	assertThrows(
859	>	RejectedExecutionException.class,
860	>	() -> p.submit(task),
861	>	() -> p.schedule(task, 1, SECONDS),
862	>	() -> p.scheduleAtFixedRate(
863	>	new PeriodicTask(1), 1, 1, SECONDS),
864	>	() -> p.scheduleWithFixedDelay(
865	>	new PeriodicTask(2), 1, 1, SECONDS));
866	>
867	>	assertTrue(q.contains(immediates.get(1)));
868	>	assertTrue(!effectiveDelayedPolicy
869	>	^ q.contains(delayeds.get(1)));
870	>	assertTrue(!effectivePeriodicPolicy
871	>	^ q.containsAll(periodics.subList(4, 8)));
872	>
873	>	immediates.forEach(f -> assertFalse(f.isDone()));
874	>
875	>	assertFalse(delayeds.get(0).isDone());
876	>	if (effectiveDelayedPolicy)
877	>	assertFalse(delayeds.get(1).isDone());
878	>	else
879	>	assertTrue(delayeds.get(1).isCancelled());
880	>
881	>	if (testImplementationDetails) {
882	>	if (effectivePeriodicPolicy)
883	>	periodics.forEach(
884	>	f -> {
885	>	assertFalse(f.isDone());
886	>	if (!periodicTasksContinue)
887	>	assertTrue(f.cancel(false));
888	>	});
889	>	else {
890	>	periodics.subList(0, 4).forEach(f -> assertFalse(f.isDone()));
891	>	periodics.subList(4, 8).forEach(f -> assertTrue(f.isCancelled()));
892	>	}
893		}
577	–	}
894
895	<	/**
896	<	* if setContinueExistingPeriodicTasksAfterShutdownPolicy is true,
897	<	* periodic tasks are cancelled at shutdown
898	<	*/
899	<	public void testShutDown4() {
900	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
901	<	try {
902	<	p1.setContinueExistingPeriodicTasksAfterShutdownPolicy(true);
903	<	ScheduledFuture task =
904	<	p1.scheduleAtFixedRate(new NoOpRunnable(), 5, 5, TimeUnit.MILLISECONDS);
905	<	assertFalse(task.isCancelled());
906	<	p1.shutdown();
907	<	assertFalse(task.isCancelled());
908	<	assertFalse(p1.isTerminated());
909	<	assertTrue(p1.isShutdown());
910	<	Thread.sleep(SHORT_DELAY_MS);
911	<	assertFalse(task.isCancelled());
912	<	task.cancel(true);
913	<	assertTrue(task.isCancelled());
914	<	Thread.sleep(SHORT_DELAY_MS);
915	<	assertTrue(p1.isTerminated());
916	<	}
917	<	catch(Exception ex) {
918	<	unexpectedException();
919	<	}
920	<	finally {
921	<	p1.shutdownNow();
922	<	}
895	>	unblock.countDown();    // Release all pool threads
896	>
897	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
898	>	assertFalse(p.isTerminating());
899	>	assertTrue(p.isTerminated());
900	>
901	>	assertTrue(q.isEmpty());
902	>
903	>	Stream.of(immediates, delayeds, periodics).flatMap(c -> c.stream())
904	>	.forEach(f -> assertTrue(f.isDone()));
905	>
906	>	for (Future<?> f : immediates) assertNull(f.get());
907	>
908	>	assertNull(delayeds.get(0).get());
909	>	if (effectiveDelayedPolicy)
910	>	assertNull(delayeds.get(1).get());
911	>	else
912	>	assertTrue(delayeds.get(1).isCancelled());
913	>
914	>	if (periodicTasksContinue)
915	>	periodics.forEach(
916	>	f -> {
917	>	try { f.get(); }
918	>	catch (ExecutionException success) {
919	>	assertSame(exception, success.getCause());
920	>	}
921	>	catch (Throwable fail) { threadUnexpectedException(fail); }
922	>	});
923	>	else
924	>	periodics.forEach(f -> assertTrue(f.isCancelled()));
925	>
926	>	assertEquals(poolSize + 1
927	>	+ (effectiveDelayedPolicy ? 1 : 0)
928	>	+ (periodicTasksContinue ? 4 : 0),
929	>	ran.get());
930		}
931
932		/**
933		* completed submit of callable returns result
934		*/
935	<	public void testSubmitCallable() {
936	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
937	<	try {
935	>	public void testSubmitCallable() throws Exception {
936	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
937	>	try (PoolCleaner cleaner = cleaner(e)) {
938		Future<String> future = e.submit(new StringTask());
939		String result = future.get();
940		assertSame(TEST_STRING, result);
941		}
619	–	catch (ExecutionException ex) {
620	–	unexpectedException();
621	–	}
622	–	catch (InterruptedException ex) {
623	–	unexpectedException();
624	–	} finally {
625	–	joinPool(e);
626	–	}
942		}
943
944		/**
945		* completed submit of runnable returns successfully
946		*/
947	<	public void testSubmitRunnable() {
948	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
949	<	try {
947	>	public void testSubmitRunnable() throws Exception {
948	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
949	>	try (PoolCleaner cleaner = cleaner(e)) {
950		Future<?> future = e.submit(new NoOpRunnable());
951		future.get();
952		assertTrue(future.isDone());
953		}
639	–	catch (ExecutionException ex) {
640	–	unexpectedException();
641	–	}
642	–	catch (InterruptedException ex) {
643	–	unexpectedException();
644	–	} finally {
645	–	joinPool(e);
646	–	}
954		}
955
956		/**
957		* completed submit of (runnable, result) returns result
958		*/
959	<	public void testSubmitRunnable2() {
960	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
961	<	try {
959	>	public void testSubmitRunnable2() throws Exception {
960	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
961	>	try (PoolCleaner cleaner = cleaner(e)) {
962		Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING);
963		String result = future.get();
964		assertSame(TEST_STRING, result);
965		}
659	–	catch (ExecutionException ex) {
660	–	unexpectedException();
661	–	}
662	–	catch (InterruptedException ex) {
663	–	unexpectedException();
664	–	} finally {
665	–	joinPool(e);
666	–	}
966		}
967
669	–
670	–
671	–
672	–
968		/**
969		* invokeAny(null) throws NPE
970		*/
971	<	public void testInvokeAny1() {
972	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
973	<	try {
974	<	e.invokeAny(null);
975	<	} catch (NullPointerException success) {
976	<	} catch(Exception ex) {
977	<	unexpectedException();
683	<	} finally {
684	<	joinPool(e);
971	>	public void testInvokeAny1() throws Exception {
972	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
973	>	try (PoolCleaner cleaner = cleaner(e)) {
974	>	try {
975	>	e.invokeAny(null);
976	>	shouldThrow();
977	>	} catch (NullPointerException success) {}
978		}
979		}
980
981		/**
982		* invokeAny(empty collection) throws IAE
983		*/
984	<	public void testInvokeAny2() {
985	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
986	<	try {
987	<	e.invokeAny(new ArrayList<Callable<String>>());
988	<	} catch (IllegalArgumentException success) {
989	<	} catch(Exception ex) {
990	<	unexpectedException();
698	<	} finally {
699	<	joinPool(e);
984	>	public void testInvokeAny2() throws Exception {
985	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
986	>	try (PoolCleaner cleaner = cleaner(e)) {
987	>	try {
988	>	e.invokeAny(new ArrayList<Callable<String>>());
989	>	shouldThrow();
990	>	} catch (IllegalArgumentException success) {}
991		}
992		}
993
994		/**
995		* invokeAny(c) throws NPE if c has null elements
996		*/
997	<	public void testInvokeAny3() {
998	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
999	<	try {
1000	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1001	<	l.add(new StringTask());
997	>	public void testInvokeAny3() throws Exception {
998	>	CountDownLatch latch = new CountDownLatch(1);
999	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1000	>	try (PoolCleaner cleaner = cleaner(e)) {
1001	>	List<Callable<String>> l = new ArrayList<>();
1002	>	l.add(latchAwaitingStringTask(latch));
1003		l.add(null);
1004	<	e.invokeAny(l);
1005	<	} catch (NullPointerException success) {
1006	<	} catch(Exception ex) {
1007	<	unexpectedException();
1008	<	} finally {
717	<	joinPool(e);
1004	>	try {
1005	>	e.invokeAny(l);
1006	>	shouldThrow();
1007	>	} catch (NullPointerException success) {}
1008	>	latch.countDown();
1009		}
1010		}
1011
1012		/**
1013		* invokeAny(c) throws ExecutionException if no task completes
1014		*/
1015	<	public void testInvokeAny4() {
1016	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1017	<	try {
1018	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1015	>	public void testInvokeAny4() throws Exception {
1016	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1017	>	try (PoolCleaner cleaner = cleaner(e)) {
1018	>	List<Callable<String>> l = new ArrayList<>();
1019		l.add(new NPETask());
1020	<	e.invokeAny(l);
1021	<	} catch (ExecutionException success) {
1022	<	} catch(Exception ex) {
1023	<	unexpectedException();
1024	<	} finally {
1025	<	joinPool(e);
1020	>	try {
1021	>	e.invokeAny(l);
1022	>	shouldThrow();
1023	>	} catch (ExecutionException success) {
1024	>	assertTrue(success.getCause() instanceof NullPointerException);
1025	>	}
1026		}
1027		}
1028
1029		/**
1030		* invokeAny(c) returns result of some task
1031		*/
1032	<	public void testInvokeAny5() {
1033	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1034	<	try {
1035	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1032	>	public void testInvokeAny5() throws Exception {
1033	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1034	>	try (PoolCleaner cleaner = cleaner(e)) {
1035	>	List<Callable<String>> l = new ArrayList<>();
1036		l.add(new StringTask());
1037		l.add(new StringTask());
1038		String result = e.invokeAny(l);
1039		assertSame(TEST_STRING, result);
749	–	} catch (ExecutionException success) {
750	–	} catch(Exception ex) {
751	–	unexpectedException();
752	–	} finally {
753	–	joinPool(e);
1040		}
1041		}
1042
1043		/**
1044		* invokeAll(null) throws NPE
1045		*/
1046	<	public void testInvokeAll1() {
1047	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1048	<	try {
1049	<	e.invokeAll(null);
1050	<	} catch (NullPointerException success) {
1051	<	} catch(Exception ex) {
1052	<	unexpectedException();
767	<	} finally {
768	<	joinPool(e);
1046	>	public void testInvokeAll1() throws Exception {
1047	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1048	>	try (PoolCleaner cleaner = cleaner(e)) {
1049	>	try {
1050	>	e.invokeAll(null);
1051	>	shouldThrow();
1052	>	} catch (NullPointerException success) {}
1053		}
1054		}
1055
1056		/**
1057		* invokeAll(empty collection) returns empty collection
1058		*/
1059	<	public void testInvokeAll2() {
1060	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1061	<	try {
1059	>	public void testInvokeAll2() throws Exception {
1060	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1061	>	try (PoolCleaner cleaner = cleaner(e)) {
1062		List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>());
1063		assertTrue(r.isEmpty());
780	–	} catch(Exception ex) {
781	–	unexpectedException();
782	–	} finally {
783	–	joinPool(e);
1064		}
1065		}
1066
1067		/**
1068		* invokeAll(c) throws NPE if c has null elements
1069		*/
1070	<	public void testInvokeAll3() {
1071	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1072	<	try {
1073	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1070	>	public void testInvokeAll3() throws Exception {
1071	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1072	>	try (PoolCleaner cleaner = cleaner(e)) {
1073	>	List<Callable<String>> l = new ArrayList<>();
1074		l.add(new StringTask());
1075		l.add(null);
1076	<	e.invokeAll(l);
1077	<	} catch (NullPointerException success) {
1078	<	} catch(Exception ex) {
1079	<	unexpectedException();
800	<	} finally {
801	<	joinPool(e);
1076	>	try {
1077	>	e.invokeAll(l);
1078	>	shouldThrow();
1079	>	} catch (NullPointerException success) {}
1080		}
1081		}
1082
1083		/**
1084		* get of invokeAll(c) throws exception on failed task
1085		*/
1086	<	public void testInvokeAll4() {
1087	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1088	<	try {
1089	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1086	>	public void testInvokeAll4() throws Exception {
1087	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1088	>	try (PoolCleaner cleaner = cleaner(e)) {
1089	>	List<Callable<String>> l = new ArrayList<>();
1090		l.add(new NPETask());
1091	<	List<Future<String>> result = e.invokeAll(l);
1092	<	assertEquals(1, result.size());
1093	<	for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
1094	<	it.next().get();
1095	<	} catch(ExecutionException success) {
1096	<	} catch(Exception ex) {
1097	<	unexpectedException();
1098	<	} finally {
821	<	joinPool(e);
1091	>	List<Future<String>> futures = e.invokeAll(l);
1092	>	assertEquals(1, futures.size());
1093	>	try {
1094	>	futures.get(0).get();
1095	>	shouldThrow();
1096	>	} catch (ExecutionException success) {
1097	>	assertTrue(success.getCause() instanceof NullPointerException);
1098	>	}
1099		}
1100		}
1101
1102		/**
1103		* invokeAll(c) returns results of all completed tasks
1104		*/
1105	<	public void testInvokeAll5() {
1106	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1107	<	try {
1108	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1105	>	public void testInvokeAll5() throws Exception {
1106	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1107	>	try (PoolCleaner cleaner = cleaner(e)) {
1108	>	List<Callable<String>> l = new ArrayList<>();
1109	>	l.add(new StringTask());
1110	>	l.add(new StringTask());
1111	>	List<Future<String>> futures = e.invokeAll(l);
1112	>	assertEquals(2, futures.size());
1113	>	for (Future<String> future : futures)
1114	>	assertSame(TEST_STRING, future.get());
1115	>	}
1116	>	}
1117	>
1118	>	/**
1119	>	* timed invokeAny(null) throws NPE
1120	>	*/
1121	>	public void testTimedInvokeAny1() throws Exception {
1122	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1123	>	try (PoolCleaner cleaner = cleaner(e)) {
1124	>	try {
1125	>	e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS);
1126	>	shouldThrow();
1127	>	} catch (NullPointerException success) {}
1128	>	}
1129	>	}
1130	>
1131	>	/**
1132	>	* timed invokeAny(,,null) throws NPE
1133	>	*/
1134	>	public void testTimedInvokeAnyNullTimeUnit() throws Exception {
1135	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1136	>	try (PoolCleaner cleaner = cleaner(e)) {
1137	>	List<Callable<String>> l = new ArrayList<>();
1138	>	l.add(new StringTask());
1139	>	try {
1140	>	e.invokeAny(l, MEDIUM_DELAY_MS, null);
1141	>	shouldThrow();
1142	>	} catch (NullPointerException success) {}
1143	>	}
1144	>	}
1145	>
1146	>	/**
1147	>	* timed invokeAny(empty collection) throws IAE
1148	>	*/
1149	>	public void testTimedInvokeAny2() throws Exception {
1150	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1151	>	try (PoolCleaner cleaner = cleaner(e)) {
1152	>	try {
1153	>	e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
1154	>	shouldThrow();
1155	>	} catch (IllegalArgumentException success) {}
1156	>	}
1157	>	}
1158	>
1159	>	/**
1160	>	* timed invokeAny(c) throws NPE if c has null elements
1161	>	*/
1162	>	public void testTimedInvokeAny3() throws Exception {
1163	>	CountDownLatch latch = new CountDownLatch(1);
1164	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1165	>	try (PoolCleaner cleaner = cleaner(e)) {
1166	>	List<Callable<String>> l = new ArrayList<>();
1167	>	l.add(latchAwaitingStringTask(latch));
1168	>	l.add(null);
1169	>	try {
1170	>	e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1171	>	shouldThrow();
1172	>	} catch (NullPointerException success) {}
1173	>	latch.countDown();
1174	>	}
1175	>	}
1176	>
1177	>	/**
1178	>	* timed invokeAny(c) throws ExecutionException if no task completes
1179	>	*/
1180	>	public void testTimedInvokeAny4() throws Exception {
1181	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1182	>	try (PoolCleaner cleaner = cleaner(e)) {
1183	>	long startTime = System.nanoTime();
1184	>	List<Callable<String>> l = new ArrayList<>();
1185	>	l.add(new NPETask());
1186	>	try {
1187	>	e.invokeAny(l, LONG_DELAY_MS, MILLISECONDS);
1188	>	shouldThrow();
1189	>	} catch (ExecutionException success) {
1190	>	assertTrue(success.getCause() instanceof NullPointerException);
1191	>	}
1192	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1193	>	}
1194	>	}
1195	>
1196	>	/**
1197	>	* timed invokeAny(c) returns result of some task
1198	>	*/
1199	>	public void testTimedInvokeAny5() throws Exception {
1200	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1201	>	try (PoolCleaner cleaner = cleaner(e)) {
1202	>	long startTime = System.nanoTime();
1203	>	List<Callable<String>> l = new ArrayList<>();
1204		l.add(new StringTask());
1205		l.add(new StringTask());
1206	<	List<Future<String>> result = e.invokeAll(l);
1207	<	assertEquals(2, result.size());
1208	<	for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
837	<	assertSame(TEST_STRING, it.next().get());
838	<	} catch (ExecutionException success) {
839	<	} catch(Exception ex) {
840	<	unexpectedException();
841	<	} finally {
842	<	joinPool(e);
1206	>	String result = e.invokeAny(l, LONG_DELAY_MS, MILLISECONDS);
1207	>	assertSame(TEST_STRING, result);
1208	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1209		}
1210		}
1211
1212	+	/**
1213	+	* timed invokeAll(null) throws NPE
1214	+	*/
1215	+	public void testTimedInvokeAll1() throws Exception {
1216	+	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1217	+	try (PoolCleaner cleaner = cleaner(e)) {
1218	+	try {
1219	+	e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS);
1220	+	shouldThrow();
1221	+	} catch (NullPointerException success) {}
1222	+	}
1223	+	}
1224	+
1225	+	/**
1226	+	* timed invokeAll(,,null) throws NPE
1227	+	*/
1228	+	public void testTimedInvokeAllNullTimeUnit() throws Exception {
1229	+	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1230	+	try (PoolCleaner cleaner = cleaner(e)) {
1231	+	List<Callable<String>> l = new ArrayList<>();
1232	+	l.add(new StringTask());
1233	+	try {
1234	+	e.invokeAll(l, MEDIUM_DELAY_MS, null);
1235	+	shouldThrow();
1236	+	} catch (NullPointerException success) {}
1237	+	}
1238	+	}
1239	+
1240	+	/**
1241	+	* timed invokeAll(empty collection) returns empty collection
1242	+	*/
1243	+	public void testTimedInvokeAll2() throws Exception {
1244	+	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1245	+	try (PoolCleaner cleaner = cleaner(e)) {
1246	+	List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(),
1247	+	MEDIUM_DELAY_MS, MILLISECONDS);
1248	+	assertTrue(r.isEmpty());
1249	+	}
1250	+	}
1251	+
1252	+	/**
1253	+	* timed invokeAll(c) throws NPE if c has null elements
1254	+	*/
1255	+	public void testTimedInvokeAll3() throws Exception {
1256	+	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1257	+	try (PoolCleaner cleaner = cleaner(e)) {
1258	+	List<Callable<String>> l = new ArrayList<>();
1259	+	l.add(new StringTask());
1260	+	l.add(null);
1261	+	try {
1262	+	e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1263	+	shouldThrow();
1264	+	} catch (NullPointerException success) {}
1265	+	}
1266	+	}
1267	+
1268	+	/**
1269	+	* get of element of invokeAll(c) throws exception on failed task
1270	+	*/
1271	+	public void testTimedInvokeAll4() throws Exception {
1272	+	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1273	+	try (PoolCleaner cleaner = cleaner(e)) {
1274	+	List<Callable<String>> l = new ArrayList<>();
1275	+	l.add(new NPETask());
1276	+	List<Future<String>> futures =
1277	+	e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS);
1278	+	assertEquals(1, futures.size());
1279	+	try {
1280	+	futures.get(0).get();
1281	+	shouldThrow();
1282	+	} catch (ExecutionException success) {
1283	+	assertTrue(success.getCause() instanceof NullPointerException);
1284	+	}
1285	+	}
1286	+	}
1287	+
1288	+	/**
1289	+	* timed invokeAll(c) returns results of all completed tasks
1290	+	*/
1291	+	public void testTimedInvokeAll5() throws Exception {
1292	+	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1293	+	try (PoolCleaner cleaner = cleaner(e)) {
1294	+	List<Callable<String>> l = new ArrayList<>();
1295	+	l.add(new StringTask());
1296	+	l.add(new StringTask());
1297	+	List<Future<String>> futures =
1298	+	e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS);
1299	+	assertEquals(2, futures.size());
1300	+	for (Future<String> future : futures)
1301	+	assertSame(TEST_STRING, future.get());
1302	+	}
1303	+	}
1304	+
1305	+	/**
1306	+	* timed invokeAll(c) cancels tasks not completed by timeout
1307	+	*/
1308	+	public void testTimedInvokeAll6() throws Exception {
1309	+	for (long timeout = timeoutMillis();;) {
1310	+	final CountDownLatch done = new CountDownLatch(1);
1311	+	final Callable<String> waiter = new CheckedCallable<String>() {
1312	+	public String realCall() {
1313	+	try { done.await(LONG_DELAY_MS, MILLISECONDS); }
1314	+	catch (InterruptedException ok) {}
1315	+	return "1"; }};
1316	+	final ExecutorService p = new ScheduledThreadPoolExecutor(2);
1317	+	try (PoolCleaner cleaner = cleaner(p, done)) {
1318	+	List<Callable<String>> tasks = new ArrayList<>();
1319	+	tasks.add(new StringTask("0"));
1320	+	tasks.add(waiter);
1321	+	tasks.add(new StringTask("2"));
1322	+	long startTime = System.nanoTime();
1323	+	List<Future<String>> futures =
1324	+	p.invokeAll(tasks, timeout, MILLISECONDS);
1325	+	assertEquals(tasks.size(), futures.size());
1326	+	assertTrue(millisElapsedSince(startTime) >= timeout);
1327	+	for (Future future : futures)
1328	+	assertTrue(future.isDone());
1329	+	assertTrue(futures.get(1).isCancelled());
1330	+	try {
1331	+	assertEquals("0", futures.get(0).get());
1332	+	assertEquals("2", futures.get(2).get());
1333	+	break;
1334	+	} catch (CancellationException retryWithLongerTimeout) {
1335	+	timeout *= 2;
1336	+	if (timeout >= LONG_DELAY_MS / 2)
1337	+	fail("expected exactly one task to be cancelled");
1338	+	}
1339	+	}
1340	+	}
1341	+	}
1342	+
1343	+	/**
1344	+	* A fixed delay task with overflowing period should not prevent a
1345	+	* one-shot task from executing.
1346	+	* https://bugs.openjdk.java.net/browse/JDK-8051859
1347	+	*/
1348	+	public void testScheduleWithFixedDelay_overflow() throws Exception {
1349	+	final CountDownLatch delayedDone = new CountDownLatch(1);
1350	+	final CountDownLatch immediateDone = new CountDownLatch(1);
1351	+	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
1352	+	try (PoolCleaner cleaner = cleaner(p)) {
1353	+	final Runnable immediate = new Runnable() { public void run() {
1354	+	immediateDone.countDown();
1355	+	}};
1356	+	final Runnable delayed = new Runnable() { public void run() {
1357	+	delayedDone.countDown();
1358	+	p.submit(immediate);
1359	+	}};
1360	+	p.scheduleWithFixedDelay(delayed, 0L, Long.MAX_VALUE, SECONDS);
1361	+	await(delayedDone);
1362	+	await(immediateDone);
1363	+	}
1364	+	}
1365
1366		}

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