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

Comparing jsr166/src/test/tck/ScheduledExecutorTest.java (file contents):
Revision 1.16 by dl, Thu Jan 8 01:29:46 2004 UTC vs.
Revision 1.88 by jsr166, Sun Mar 26 02:00:39 2017 UTC

#	Line 1 | Line 1
1		/*
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/licenses/publicdomain
5	<	* Other contributors include Andrew Wright, Jeffrey Hayes,
6	<	* Pat Fisher, Mike Judd.
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	>
33	>	import junit.framework.Test;
34	>	import junit.framework.TestSuite;
35
36		public class ScheduledExecutorTest extends JSR166TestCase {
37		public static void main(String[] args) {
38	<	junit.textui.TestRunner.run (suite());
38	>	main(suite(), args);
39		}
40		public static Test suite() {
41	<	return new TestSuite(ScheduledExecutorTest.class);
41	>	return new TestSuite(ScheduledExecutorTest.class);
42		}
43
21	–
44		/**
45		* execute successfully executes a runnable
46		*/
47	<	public void testExecute() {
48	<	try {
49	<	TrackedShortRunnable runnable =new TrackedShortRunnable();
50	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
51	<	p1.execute(runnable);
52	<	assertFalse(runnable.done);
53	<	Thread.sleep(SHORT_DELAY_MS);
54	<	p1.shutdown();
33	<	try {
34	<	Thread.sleep(MEDIUM_DELAY_MS);
35	<	} catch(InterruptedException e){
36	<	unexpectedException();
37	<	}
38	<	assertTrue(runnable.done);
39	<	p1.shutdown();
40	<	joinPool(p1);
47	>	public void testExecute() throws InterruptedException {
48	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
49	>	try (PoolCleaner cleaner = cleaner(p)) {
50	>	final CountDownLatch done = new CountDownLatch(1);
51	>	final Runnable task = new CheckedRunnable() {
52	>	public void realRun() { done.countDown(); }};
53	>	p.execute(task);
54	>	await(done);
55		}
42	–	catch(Exception e){
43	–	unexpectedException();
44	–	}
45	–
56		}
57
48	–
58		/**
59		* delayed schedule of callable successfully executes after delay
60		*/
61	<	public void testSchedule1() {
62	<	try {
63	<	TrackedCallable callable = new TrackedCallable();
64	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
65	<	Future f = p1.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
66	<	assertFalse(callable.done);
67	<	Thread.sleep(MEDIUM_DELAY_MS);
68	<	assertTrue(callable.done);
69	<	assertEquals(Boolean.TRUE, f.get());
70	<	p1.shutdown();
71	<	joinPool(p1);
72	<	} catch(RejectedExecutionException e){}
73	<	catch(Exception e){
74	<	e.printStackTrace();
75	<	unexpectedException();
61	>	public void testSchedule1() throws Exception {
62	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
63	>	try (PoolCleaner cleaner = cleaner(p)) {
64	>	final long startTime = System.nanoTime();
65	>	final CountDownLatch done = new CountDownLatch(1);
66	>	Callable task = new CheckedCallable<Boolean>() {
67	>	public Boolean realCall() {
68	>	done.countDown();
69	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
70	>	return Boolean.TRUE;
71	>	}};
72	>	Future f = p.schedule(task, timeoutMillis(), MILLISECONDS);
73	>	assertSame(Boolean.TRUE, f.get());
74	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
75	>	assertTrue(done.await(0L, MILLISECONDS));
76		}
77		}
78
79		/**
80	<	*  delayed schedule of runnable successfully executes after delay
81	<	*/
82	<	public void testSchedule3() {
83	<	try {
84	<	TrackedShortRunnable runnable = new TrackedShortRunnable();
85	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
86	<	p1.schedule(runnable, SMALL_DELAY_MS, TimeUnit.MILLISECONDS);
87	<	Thread.sleep(SHORT_DELAY_MS);
88	<	assertFalse(runnable.done);
89	<	Thread.sleep(MEDIUM_DELAY_MS);
90	<	assertTrue(runnable.done);
91	<	p1.shutdown();
92	<	joinPool(p1);
93	<	} catch(Exception e){
94	<	unexpectedException();
80	>	* delayed schedule of runnable successfully executes after delay
81	>	*/
82	>	public void testSchedule3() throws Exception {
83	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
84	>	try (PoolCleaner cleaner = cleaner(p)) {
85	>	final long startTime = System.nanoTime();
86	>	final CountDownLatch done = new CountDownLatch(1);
87	>	Runnable task = new CheckedRunnable() {
88	>	public void realRun() {
89	>	done.countDown();
90	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
91	>	}};
92	>	Future f = p.schedule(task, timeoutMillis(), MILLISECONDS);
93	>	await(done);
94	>	assertNull(f.get(LONG_DELAY_MS, MILLISECONDS));
95	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
96		}
97		}
98	<
98	>
99		/**
100		* scheduleAtFixedRate executes runnable after given initial delay
101		*/
102	<	public void testSchedule4() {
103	<	try {
104	<	TrackedShortRunnable runnable = new TrackedShortRunnable();
105	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
106	<	ScheduledFuture h = p1.scheduleAtFixedRate(runnable, SHORT_DELAY_MS, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
107	<	assertFalse(runnable.done);
108	<	Thread.sleep(MEDIUM_DELAY_MS);
109	<	assertTrue(runnable.done);
110	<	h.cancel(true);
111	<	p1.shutdown();
112	<	joinPool(p1);
113	<	} catch(Exception e){
114	<	unexpectedException();
102	>	public void testSchedule4() throws Exception {
103	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
104	>	try (PoolCleaner cleaner = cleaner(p)) {
105	>	final long startTime = System.nanoTime();
106	>	final CountDownLatch done = new CountDownLatch(1);
107	>	Runnable task = new CheckedRunnable() {
108	>	public void realRun() {
109	>	done.countDown();
110	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
111	>	}};
112	>	ScheduledFuture f =
113	>	p.scheduleAtFixedRate(task, timeoutMillis(),
114	>	LONG_DELAY_MS, MILLISECONDS);
115	>	await(done);
116	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
117	>	f.cancel(true);
118		}
119		}
120
121		/**
122		* scheduleWithFixedDelay executes runnable after given initial delay
123		*/
124	<	public void testSchedule5() {
125	<	try {
126	<	TrackedShortRunnable runnable = new TrackedShortRunnable();
127	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
128	<	ScheduledFuture h = p1.scheduleWithFixedDelay(runnable, SHORT_DELAY_MS, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
129	<	assertFalse(runnable.done);
130	<	Thread.sleep(MEDIUM_DELAY_MS);
131	<	assertTrue(runnable.done);
132	<	h.cancel(true);
133	<	p1.shutdown();
134	<	joinPool(p1);
135	<	} catch(Exception e){
136	<	unexpectedException();
124	>	public void testSchedule5() throws Exception {
125	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
126	>	try (PoolCleaner cleaner = cleaner(p)) {
127	>	final long startTime = System.nanoTime();
128	>	final CountDownLatch done = new CountDownLatch(1);
129	>	Runnable task = new CheckedRunnable() {
130	>	public void realRun() {
131	>	done.countDown();
132	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
133	>	}};
134	>	ScheduledFuture f =
135	>	p.scheduleWithFixedDelay(task, timeoutMillis(),
136	>	LONG_DELAY_MS, MILLISECONDS);
137	>	await(done);
138	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
139	>	f.cancel(true);
140	>	}
141	>	}
142	>
143	>	static class RunnableCounter implements Runnable {
144	>	AtomicInteger count = new AtomicInteger(0);
145	>	public void run() { count.getAndIncrement(); }
146	>	}
147	>
148	>	/**
149	>	* scheduleAtFixedRate executes series of tasks at given rate.
150	>	* Eventually, it must hold that:
151	>	*   cycles - 1 <= elapsedMillis/delay < cycles
152	>	*/
153	>	public void testFixedRateSequence() throws InterruptedException {
154	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
155	>	try (PoolCleaner cleaner = cleaner(p)) {
156	>	for (int delay = 1; delay <= LONG_DELAY_MS; delay *= 3) {
157	>	final long startTime = System.nanoTime();
158	>	final int cycles = 8;
159	>	final CountDownLatch done = new CountDownLatch(cycles);
160	>	final Runnable task = new CheckedRunnable() {
161	>	public void realRun() { done.countDown(); }};
162	>	final ScheduledFuture periodicTask =
163	>	p.scheduleAtFixedRate(task, 0, delay, MILLISECONDS);
164	>	final int totalDelayMillis = (cycles - 1) * delay;
165	>	await(done, totalDelayMillis + LONG_DELAY_MS);
166	>	periodicTask.cancel(true);
167	>	final long elapsedMillis = millisElapsedSince(startTime);
168	>	assertTrue(elapsedMillis >= totalDelayMillis);
169	>	if (elapsedMillis <= cycles * delay)
170	>	return;
171	>	// else retry with longer delay
172	>	}
173	>	fail("unexpected execution rate");
174	>	}
175	>	}
176	>
177	>	/**
178	>	* scheduleWithFixedDelay executes series of tasks with given period.
179	>	* Eventually, it must hold that each task starts at least delay and at
180	>	* most 2 * delay after the termination of the previous task.
181	>	*/
182	>	public void testFixedDelaySequence() throws InterruptedException {
183	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
184	>	try (PoolCleaner cleaner = cleaner(p)) {
185	>	for (int delay = 1; delay <= LONG_DELAY_MS; delay *= 3) {
186	>	final long startTime = System.nanoTime();
187	>	final AtomicLong previous = new AtomicLong(startTime);
188	>	final AtomicBoolean tryLongerDelay = new AtomicBoolean(false);
189	>	final int cycles = 8;
190	>	final CountDownLatch done = new CountDownLatch(cycles);
191	>	final int d = delay;
192	>	final Runnable task = new CheckedRunnable() {
193	>	public void realRun() {
194	>	long now = System.nanoTime();
195	>	long elapsedMillis
196	>	= NANOSECONDS.toMillis(now - previous.get());
197	>	if (done.getCount() == cycles) { // first execution
198	>	if (elapsedMillis >= d)
199	>	tryLongerDelay.set(true);
200	>	} else {
201	>	assertTrue(elapsedMillis >= d);
202	>	if (elapsedMillis >= 2 * d)
203	>	tryLongerDelay.set(true);
204	>	}
205	>	previous.set(now);
206	>	done.countDown();
207	>	}};
208	>	final ScheduledFuture periodicTask =
209	>	p.scheduleWithFixedDelay(task, 0, delay, MILLISECONDS);
210	>	final int totalDelayMillis = (cycles - 1) * delay;
211	>	await(done, totalDelayMillis + cycles * LONG_DELAY_MS);
212	>	periodicTask.cancel(true);
213	>	final long elapsedMillis = millisElapsedSince(startTime);
214	>	assertTrue(elapsedMillis >= totalDelayMillis);
215	>	if (!tryLongerDelay.get())
216	>	return;
217	>	// else retry with longer delay
218	>	}
219	>	fail("unexpected execution rate");
220		}
221		}
222	<
222	>
223		/**
224	<	*  execute (null) throws NPE
224	>	* execute(null) throws NPE
225		*/
226	<	public void testExecuteNull() {
227	<	ScheduledThreadPoolExecutor se = null;
228	<	try {
229	<	se = new ScheduledThreadPoolExecutor(1);
230	<	se.execute(null);
231	<	shouldThrow();
232	<	} catch(NullPointerException success){}
137	<	catch(Exception e){
138	<	unexpectedException();
226	>	public void testExecuteNull() throws InterruptedException {
227	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
228	>	try (PoolCleaner cleaner = cleaner(p)) {
229	>	try {
230	>	p.execute(null);
231	>	shouldThrow();
232	>	} catch (NullPointerException success) {}
233		}
140	–
141	–	joinPool(se);
234		}
235
236		/**
237	<	* schedule (null) throws NPE
237	>	* schedule(null) throws NPE
238		*/
239	<	public void testScheduleNull() {
240	<	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
241	<	try {
242	<	TrackedCallable callable = null;
243	<	Future f = se.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
244	<	shouldThrow();
245	<	} catch(NullPointerException success){}
246	<	catch(Exception e){
155	<	unexpectedException();
239	>	public void testScheduleNull() throws InterruptedException {
240	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
241	>	try (PoolCleaner cleaner = cleaner(p)) {
242	>	try {
243	>	TrackedCallable callable = null;
244	>	Future f = p.schedule(callable, SHORT_DELAY_MS, MILLISECONDS);
245	>	shouldThrow();
246	>	} catch (NullPointerException success) {}
247		}
157	–	joinPool(se);
248		}
249	<
249	>
250		/**
251		* execute throws RejectedExecutionException if shutdown
252		*/
253	<	public void testSchedule1_RejectedExecutionException() {
254	<	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
255	<	try {
256	<	se.shutdown();
257	<	se.schedule(new NoOpRunnable(),
258	<	MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
259	<	shouldThrow();
260	<	} catch(RejectedExecutionException success){
253	>	public void testSchedule1_RejectedExecutionException() throws InterruptedException {
254	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
255	>	try (PoolCleaner cleaner = cleaner(p)) {
256	>	try {
257	>	p.shutdown();
258	>	p.schedule(new NoOpRunnable(),
259	>	MEDIUM_DELAY_MS, MILLISECONDS);
260	>	shouldThrow();
261	>	} catch (RejectedExecutionException success) {
262	>	} catch (SecurityException ok) {}
263		}
172	–	joinPool(se);
173	–
264		}
265
266		/**
267		* schedule throws RejectedExecutionException if shutdown
268		*/
269	<	public void testSchedule2_RejectedExecutionException() {
270	<	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
271	<	try {
272	<	se.shutdown();
273	<	se.schedule(new NoOpCallable(),
274	<	MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
275	<	shouldThrow();
276	<	} catch(RejectedExecutionException success){
269	>	public void testSchedule2_RejectedExecutionException() throws InterruptedException {
270	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
271	>	try (PoolCleaner cleaner = cleaner(p)) {
272	>	try {
273	>	p.shutdown();
274	>	p.schedule(new NoOpCallable(),
275	>	MEDIUM_DELAY_MS, MILLISECONDS);
276	>	shouldThrow();
277	>	} catch (RejectedExecutionException success) {
278	>	} catch (SecurityException ok) {}
279		}
188	–	joinPool(se);
280		}
281
282		/**
283		* schedule callable throws RejectedExecutionException if shutdown
284		*/
285	<	public void testSchedule3_RejectedExecutionException() {
286	<	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
287	<	try {
288	<	se.shutdown();
289	<	se.schedule(new NoOpCallable(),
290	<	MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
291	<	shouldThrow();
292	<	} catch(RejectedExecutionException success){
293	<	}
294	<	joinPool(se);
285	>	public void testSchedule3_RejectedExecutionException() throws InterruptedException {
286	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
287	>	try (PoolCleaner cleaner = cleaner(p)) {
288	>	try {
289	>	p.shutdown();
290	>	p.schedule(new NoOpCallable(),
291	>	MEDIUM_DELAY_MS, MILLISECONDS);
292	>	shouldThrow();
293	>	} catch (RejectedExecutionException success) {
294	>	} catch (SecurityException ok) {}
295	>	}
296		}
297
298		/**
299	<	*  scheduleAtFixedRate throws RejectedExecutionException if shutdown
300	<	*/
301	<	public void testScheduleAtFixedRate1_RejectedExecutionException() {
302	<	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
303	<	try {
304	<	se.shutdown();
305	<	se.scheduleAtFixedRate(new NoOpRunnable(),
306	<	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
307	<	shouldThrow();
308	<	} catch(RejectedExecutionException success){
309	<	}
310	<	joinPool(se);
299	>	* scheduleAtFixedRate throws RejectedExecutionException if shutdown
300	>	*/
301	>	public void testScheduleAtFixedRate1_RejectedExecutionException() throws InterruptedException {
302	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
303	>	try (PoolCleaner cleaner = cleaner(p)) {
304	>	try {
305	>	p.shutdown();
306	>	p.scheduleAtFixedRate(new NoOpRunnable(),
307	>	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS);
308	>	shouldThrow();
309	>	} catch (RejectedExecutionException success) {
310	>	} catch (SecurityException ok) {}
311	>	}
312		}
313	<
313	>
314		/**
315		* scheduleWithFixedDelay throws RejectedExecutionException if shutdown
316		*/
317	<	public void testScheduleWithFixedDelay1_RejectedExecutionException() {
318	<	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
319	<	try {
320	<	se.shutdown();
321	<	se.scheduleWithFixedDelay(new NoOpRunnable(),
322	<	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
323	<	shouldThrow();
324	<	} catch(RejectedExecutionException success){
325	<	}
326	<	joinPool(se);
317	>	public void testScheduleWithFixedDelay1_RejectedExecutionException() throws InterruptedException {
318	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
319	>	try (PoolCleaner cleaner = cleaner(p)) {
320	>	try {
321	>	p.shutdown();
322	>	p.scheduleWithFixedDelay(new NoOpRunnable(),
323	>	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS);
324	>	shouldThrow();
325	>	} catch (RejectedExecutionException success) {
326	>	} catch (SecurityException ok) {}
327	>	}
328		}
329
330		/**
331	<	*  getActiveCount increases but doesn't overestimate, when a
332	<	*  thread becomes active
333	<	*/
334	<	public void testGetActiveCount() {
335	<	ScheduledThreadPoolExecutor p2 = new ScheduledThreadPoolExecutor(2);
336	<	assertEquals(0, p2.getActiveCount());
337	<	p2.execute(new SmallRunnable());
338	<	try {
339	<	Thread.sleep(SHORT_DELAY_MS);
340	<	} catch(Exception e){
341	<	unexpectedException();
342	<	}
343	<	assertEquals(1, p2.getActiveCount());
344	<	joinPool(p2);
345	<	}
346	<
347	<	/**
254	<	*    getCompletedTaskCount increases, but doesn't overestimate,
255	<	*   when tasks complete
256	<	*/
257	<	public void testGetCompletedTaskCount() {
258	<	ScheduledThreadPoolExecutor p2 = new ScheduledThreadPoolExecutor(2);
259	<	assertEquals(0, p2.getCompletedTaskCount());
260	<	p2.execute(new SmallRunnable());
261	<	try {
262	<	Thread.sleep(MEDIUM_DELAY_MS);
263	<	} catch(Exception e){
264	<	unexpectedException();
331	>	* getActiveCount increases but doesn't overestimate, when a
332	>	* thread becomes active
333	>	*/
334	>	public void testGetActiveCount() throws InterruptedException {
335	>	final CountDownLatch done = new CountDownLatch(1);
336	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(2);
337	>	try (PoolCleaner cleaner = cleaner(p, done)) {
338	>	final CountDownLatch threadStarted = new CountDownLatch(1);
339	>	assertEquals(0, p.getActiveCount());
340	>	p.execute(new CheckedRunnable() {
341	>	public void realRun() throws InterruptedException {
342	>	threadStarted.countDown();
343	>	assertEquals(1, p.getActiveCount());
344	>	await(done);
345	>	}});
346	>	await(threadStarted);
347	>	assertEquals(1, p.getActiveCount());
348		}
266	–	assertEquals(1, p2.getCompletedTaskCount());
267	–	joinPool(p2);
349		}
350	<
350	>
351		/**
352	<	*  getCorePoolSize returns size given in constructor if not otherwise set
353	<	*/
354	<	public void testGetCorePoolSize() {
355	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
356	<	assertEquals(1, p1.getCorePoolSize());
357	<	joinPool(p1);
352	>	* getCompletedTaskCount increases, but doesn't overestimate,
353	>	* when tasks complete
354	>	*/
355	>	public void testGetCompletedTaskCount() throws InterruptedException {
356	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(2);
357	>	try (PoolCleaner cleaner = cleaner(p)) {
358	>	final CountDownLatch threadStarted = new CountDownLatch(1);
359	>	final CountDownLatch threadProceed = new CountDownLatch(1);
360	>	final CountDownLatch threadDone = new CountDownLatch(1);
361	>	assertEquals(0, p.getCompletedTaskCount());
362	>	p.execute(new CheckedRunnable() {
363	>	public void realRun() throws InterruptedException {
364	>	threadStarted.countDown();
365	>	assertEquals(0, p.getCompletedTaskCount());
366	>	await(threadProceed);
367	>	threadDone.countDown();
368	>	}});
369	>	await(threadStarted);
370	>	assertEquals(0, p.getCompletedTaskCount());
371	>	threadProceed.countDown();
372	>	await(threadDone);
373	>	long startTime = System.nanoTime();
374	>	while (p.getCompletedTaskCount() != 1) {
375	>	if (millisElapsedSince(startTime) > LONG_DELAY_MS)
376	>	fail("timed out");
377	>	Thread.yield();
378	>	}
379	>	}
380		}
381	<
381	>
382		/**
383	<	*    getLargestPoolSize increases, but doesn't overestimate, when
281	<	*   multiple threads active
383	>	* getCorePoolSize returns size given in constructor if not otherwise set
384		*/
385	<	public void testGetLargestPoolSize() {
386	<	ScheduledThreadPoolExecutor p2 = new ScheduledThreadPoolExecutor(2);
387	<	assertEquals(0, p2.getLargestPoolSize());
388	<	p2.execute(new SmallRunnable());
389	<	p2.execute(new SmallRunnable());
390	<	try {
391	<	Thread.sleep(SHORT_DELAY_MS);
392	<	} catch(Exception e){
393	<	unexpectedException();
394	<	}
395	<	assertEquals(2, p2.getLargestPoolSize());
396	<	joinPool(p2);
397	<	}
398	<
399	<	/**
400	<	*   getPoolSize increases, but doesn't overestimate, when threads
401	<	*   become active
402	<	*/
403	<	public void testGetPoolSize() {
404	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
405	<	assertEquals(0, p1.getPoolSize());
406	<	p1.execute(new SmallRunnable());
407	<	assertEquals(1, p1.getPoolSize());
408	<	joinPool(p1);
409	<	}
410	<
411	<	/**
412	<	*    getTaskCount increases, but doesn't overestimate, when tasks
413	<	*    submitted
414	<	*/
415	<	public void testGetTaskCount() {
416	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
417	<	assertEquals(0, p1.getTaskCount());
418	<	for(int i = 0; i < 5; i++)
419	<	p1.execute(new SmallRunnable());
420	<	try {
421	<	Thread.sleep(SHORT_DELAY_MS);
422	<	} catch(Exception e){
423	<	unexpectedException();
385	>	public void testGetCorePoolSize() throws InterruptedException {
386	>	ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
387	>	try (PoolCleaner cleaner = cleaner(p)) {
388	>	assertEquals(1, p.getCorePoolSize());
389	>	}
390	>	}
391	>
392	>	/**
393	>	* getLargestPoolSize increases, but doesn't overestimate, when
394	>	* multiple threads active
395	>	*/
396	>	public void testGetLargestPoolSize() throws InterruptedException {
397	>	final int THREADS = 3;
398	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(THREADS);
399	>	final CountDownLatch threadsStarted = new CountDownLatch(THREADS);
400	>	final CountDownLatch done = new CountDownLatch(1);
401	>	try (PoolCleaner cleaner = cleaner(p, done)) {
402	>	assertEquals(0, p.getLargestPoolSize());
403	>	for (int i = 0; i < THREADS; i++)
404	>	p.execute(new CheckedRunnable() {
405	>	public void realRun() throws InterruptedException {
406	>	threadsStarted.countDown();
407	>	await(done);
408	>	assertEquals(THREADS, p.getLargestPoolSize());
409	>	}});
410	>	await(threadsStarted);
411	>	assertEquals(THREADS, p.getLargestPoolSize());
412	>	}
413	>	assertEquals(THREADS, p.getLargestPoolSize());
414	>	}
415	>
416	>	/**
417	>	* getPoolSize increases, but doesn't overestimate, when threads
418	>	* become active
419	>	*/
420	>	public void testGetPoolSize() throws InterruptedException {
421	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
422	>	final CountDownLatch threadStarted = new CountDownLatch(1);
423	>	final CountDownLatch done = new CountDownLatch(1);
424	>	try (PoolCleaner cleaner = cleaner(p, done)) {
425	>	assertEquals(0, p.getPoolSize());
426	>	p.execute(new CheckedRunnable() {
427	>	public void realRun() throws InterruptedException {
428	>	threadStarted.countDown();
429	>	assertEquals(1, p.getPoolSize());
430	>	await(done);
431	>	}});
432	>	await(threadStarted);
433	>	assertEquals(1, p.getPoolSize());
434	>	}
435	>	}
436	>
437	>	/**
438	>	* getTaskCount increases, but doesn't overestimate, when tasks
439	>	* submitted
440	>	*/
441	>	public void testGetTaskCount() throws InterruptedException {
442	>	final int TASKS = 3;
443	>	final CountDownLatch done = new CountDownLatch(1);
444	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
445	>	try (PoolCleaner cleaner = cleaner(p, done)) {
446	>	final CountDownLatch threadStarted = new CountDownLatch(1);
447	>	assertEquals(0, p.getTaskCount());
448	>	assertEquals(0, p.getCompletedTaskCount());
449	>	p.execute(new CheckedRunnable() {
450	>	public void realRun() throws InterruptedException {
451	>	threadStarted.countDown();
452	>	await(done);
453	>	}});
454	>	await(threadStarted);
455	>	assertEquals(1, p.getTaskCount());
456	>	assertEquals(0, p.getCompletedTaskCount());
457	>	for (int i = 0; i < TASKS; i++) {
458	>	assertEquals(1 + i, p.getTaskCount());
459	>	p.execute(new CheckedRunnable() {
460	>	public void realRun() throws InterruptedException {
461	>	threadStarted.countDown();
462	>	assertEquals(1 + TASKS, p.getTaskCount());
463	>	await(done);
464	>	}});
465	>	}
466	>	assertEquals(1 + TASKS, p.getTaskCount());
467	>	assertEquals(0, p.getCompletedTaskCount());
468		}
469	<	assertEquals(5, p1.getTaskCount());
470	<	joinPool(p1);
469	>	assertEquals(1 + TASKS, p.getTaskCount());
470	>	assertEquals(1 + TASKS, p.getCompletedTaskCount());
471		}
472
473	<	/**
473	>	/**
474		* getThreadFactory returns factory in constructor if not set
475		*/
476	<	public void testGetThreadFactory() {
477	<	ThreadFactory tf = new SimpleThreadFactory();
478	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1, tf);
479	<	assertSame(tf, p.getThreadFactory());
480	<	p.shutdown();
481	<	joinPool(p);
476	>	public void testGetThreadFactory() throws InterruptedException {
477	>	final ThreadFactory threadFactory = new SimpleThreadFactory();
478	>	final ScheduledThreadPoolExecutor p =
479	>	new ScheduledThreadPoolExecutor(1, threadFactory);
480	>	try (PoolCleaner cleaner = cleaner(p)) {
481	>	assertSame(threadFactory, p.getThreadFactory());
482	>	}
483		}
484
485	<	/**
485	>	/**
486		* setThreadFactory sets the thread factory returned by getThreadFactory
487		*/
488	<	public void testSetThreadFactory() {
489	<	ThreadFactory tf = new SimpleThreadFactory();
490	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
491	<	p.setThreadFactory(tf);
492	<	assertSame(tf, p.getThreadFactory());
493	<	p.shutdown();
494	<	joinPool(p);
488	>	public void testSetThreadFactory() throws InterruptedException {
489	>	ThreadFactory threadFactory = new SimpleThreadFactory();
490	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
491	>	try (PoolCleaner cleaner = cleaner(p)) {
492	>	p.setThreadFactory(threadFactory);
493	>	assertSame(threadFactory, p.getThreadFactory());
494	>	}
495		}
496
497	<	/**
497	>	/**
498		* setThreadFactory(null) throws NPE
499		*/
500	<	public void testSetThreadFactoryNull() {
501	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
502	<	try {
503	<	p.setThreadFactory(null);
504	<	shouldThrow();
505	<	} catch (NullPointerException success) {
506	<	} finally {
360	<	joinPool(p);
500	>	public void testSetThreadFactoryNull() throws InterruptedException {
501	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
502	>	try (PoolCleaner cleaner = cleaner(p)) {
503	>	try {
504	>	p.setThreadFactory(null);
505	>	shouldThrow();
506	>	} catch (NullPointerException success) {}
507		}
508		}
509	<
509	>
510		/**
511	<	*   is isShutDown is false before shutdown, true after
511	>	* The default rejected execution handler is AbortPolicy.
512		*/
513	<	public void testIsShutdown() {
514	<
515	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
516	<	try {
517	<	assertFalse(p1.isShutdown());
372	<	}
373	<	finally {
374	<	p1.shutdown();
513	>	public void testDefaultRejectedExecutionHandler() {
514	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
515	>	try (PoolCleaner cleaner = cleaner(p)) {
516	>	assertTrue(p.getRejectedExecutionHandler()
517	>	instanceof ThreadPoolExecutor.AbortPolicy);
518		}
376	–	assertTrue(p1.isShutdown());
519		}
520
379	–
521		/**
522	<	*   isTerminated is false before termination, true after
522	>	* isShutdown is false before shutdown, true after
523		*/
524	<	public void testIsTerminated() {
525	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
526	<	try {
527	<	p1.execute(new SmallRunnable());
528	<	} finally {
529	<	p1.shutdown();
524	>	public void testIsShutdown() {
525	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
526	>	assertFalse(p.isShutdown());
527	>	try (PoolCleaner cleaner = cleaner(p)) {
528	>	try {
529	>	p.shutdown();
530	>	assertTrue(p.isShutdown());
531	>	} catch (SecurityException ok) {}
532		}
390	–	try {
391	–	assertTrue(p1.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
392	–	assertTrue(p1.isTerminated());
393	–	} catch(Exception e){
394	–	unexpectedException();
395	–	}
533		}
534
535		/**
536	<	*  isTerminating is not true when running or when terminated
537	<	*/
538	<	public void testIsTerminating() {
539	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
540	<	assertFalse(p1.isTerminating());
541	<	try {
542	<	p1.execute(new SmallRunnable());
543	<	assertFalse(p1.isTerminating());
544	<	} finally {
545	<	p1.shutdown();
536	>	* isTerminated is false before termination, true after
537	>	*/
538	>	public void testIsTerminated() throws InterruptedException {
539	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
540	>	try (PoolCleaner cleaner = cleaner(p)) {
541	>	final CountDownLatch threadStarted = new CountDownLatch(1);
542	>	final CountDownLatch done = new CountDownLatch(1);
543	>	assertFalse(p.isTerminated());
544	>	p.execute(new CheckedRunnable() {
545	>	public void realRun() throws InterruptedException {
546	>	assertFalse(p.isTerminated());
547	>	threadStarted.countDown();
548	>	await(done);
549	>	}});
550	>	await(threadStarted);
551	>	assertFalse(p.isTerminating());
552	>	done.countDown();
553	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
554	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
555	>	assertTrue(p.isTerminated());
556	>	}
557	>	}
558	>
559	>	/**
560	>	* isTerminating is not true when running or when terminated
561	>	*/
562	>	public void testIsTerminating() throws InterruptedException {
563	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
564	>	final CountDownLatch threadStarted = new CountDownLatch(1);
565	>	final CountDownLatch done = new CountDownLatch(1);
566	>	try (PoolCleaner cleaner = cleaner(p)) {
567	>	assertFalse(p.isTerminating());
568	>	p.execute(new CheckedRunnable() {
569	>	public void realRun() throws InterruptedException {
570	>	assertFalse(p.isTerminating());
571	>	threadStarted.countDown();
572	>	await(done);
573	>	}});
574	>	await(threadStarted);
575	>	assertFalse(p.isTerminating());
576	>	done.countDown();
577	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
578	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
579	>	assertTrue(p.isTerminated());
580	>	assertFalse(p.isTerminating());
581		}
410	–	try {
411	–	assertTrue(p1.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
412	–	assertTrue(p1.isTerminated());
413	–	assertFalse(p1.isTerminating());
414	–	} catch(Exception e){
415	–	unexpectedException();
416	–	}
582		}
583
584		/**
585		* getQueue returns the work queue, which contains queued tasks
586		*/
587	<	public void testGetQueue() {
588	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
589	<	ScheduledFuture[] tasks = new ScheduledFuture[5];
590	<	for(int i = 0; i < 5; i++){
591	<	tasks[i] = p1.schedule(new SmallPossiblyInterruptedRunnable(), 1, TimeUnit.MILLISECONDS);
592	<	}
593	<	try {
594	<	Thread.sleep(SHORT_DELAY_MS);
595	<	BlockingQueue<Runnable> q = p1.getQueue();
596	<	assertTrue(q.contains(tasks[4]));
587	>	public void testGetQueue() throws InterruptedException {
588	>	final CountDownLatch done = new CountDownLatch(1);
589	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
590	>	try (PoolCleaner cleaner = cleaner(p, done)) {
591	>	final CountDownLatch threadStarted = new CountDownLatch(1);
592	>	ScheduledFuture[] tasks = new ScheduledFuture[5];
593	>	for (int i = 0; i < tasks.length; i++) {
594	>	Runnable r = new CheckedRunnable() {
595	>	public void realRun() throws InterruptedException {
596	>	threadStarted.countDown();
597	>	await(done);
598	>	}};
599	>	tasks[i] = p.schedule(r, 1, MILLISECONDS);
600	>	}
601	>	await(threadStarted);
602	>	BlockingQueue<Runnable> q = p.getQueue();
603	>	assertTrue(q.contains(tasks[tasks.length - 1]));
604		assertFalse(q.contains(tasks[0]));
433	–	p1.shutdownNow();
434	–	} catch(Exception e) {
435	–	unexpectedException();
436	–	} finally {
437	–	joinPool(p1);
605		}
606		}
607
608		/**
609		* remove(task) removes queued task, and fails to remove active task
610		*/
611	<	public void testRemove() {
612	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
613	<	ScheduledFuture[] tasks = new ScheduledFuture[5];
614	<	for(int i = 0; i < 5; i++){
615	<	tasks[i] = p1.schedule(new SmallPossiblyInterruptedRunnable(), 1, TimeUnit.MILLISECONDS);
616	<	}
617	<	try {
618	<	Thread.sleep(SHORT_DELAY_MS);
619	<	BlockingQueue<Runnable> q = p1.getQueue();
620	<	assertFalse(p1.remove((Runnable)tasks[0]));
611	>	public void testRemove() throws InterruptedException {
612	>	final CountDownLatch done = new CountDownLatch(1);
613	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
614	>	try (PoolCleaner cleaner = cleaner(p, done)) {
615	>	ScheduledFuture[] tasks = new ScheduledFuture[5];
616	>	final CountDownLatch threadStarted = new CountDownLatch(1);
617	>	for (int i = 0; i < tasks.length; i++) {
618	>	Runnable r = new CheckedRunnable() {
619	>	public void realRun() throws InterruptedException {
620	>	threadStarted.countDown();
621	>	await(done);
622	>	}};
623	>	tasks[i] = p.schedule(r, 1, MILLISECONDS);
624	>	}
625	>	await(threadStarted);
626	>	BlockingQueue<Runnable> q = p.getQueue();
627	>	assertFalse(p.remove((Runnable)tasks[0]));
628		assertTrue(q.contains((Runnable)tasks[4]));
629		assertTrue(q.contains((Runnable)tasks[3]));
630	<	assertTrue(p1.remove((Runnable)tasks[4]));
631	<	assertFalse(p1.remove((Runnable)tasks[4]));
630	>	assertTrue(p.remove((Runnable)tasks[4]));
631	>	assertFalse(p.remove((Runnable)tasks[4]));
632		assertFalse(q.contains((Runnable)tasks[4]));
633		assertTrue(q.contains((Runnable)tasks[3]));
634	<	assertTrue(p1.remove((Runnable)tasks[3]));
634	>	assertTrue(p.remove((Runnable)tasks[3]));
635		assertFalse(q.contains((Runnable)tasks[3]));
462	–	p1.shutdownNow();
463	–	} catch(Exception e) {
464	–	unexpectedException();
465	–	} finally {
466	–	joinPool(p1);
636		}
637		}
638
639		/**
640	<	*  purge removes cancelled tasks from the queue
640	>	* purge eventually removes cancelled tasks from the queue
641		*/
642	<	public void testPurge() {
643	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
644	<	ScheduledFuture[] tasks = new ScheduledFuture[5];
645	<	for(int i = 0; i < 5; i++){
646	<	tasks[i] = p1.schedule(new SmallPossiblyInterruptedRunnable(), 1, TimeUnit.MILLISECONDS);
642	>	public void testPurge() throws InterruptedException {
643	>	final ScheduledFuture[] tasks = new ScheduledFuture[5];
644	>	final Runnable releaser = new Runnable() { public void run() {
645	>	for (ScheduledFuture task : tasks)
646	>	if (task != null) task.cancel(true); }};
647	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
648	>	try (PoolCleaner cleaner = cleaner(p, releaser)) {
649	>	for (int i = 0; i < tasks.length; i++)
650	>	tasks[i] = p.schedule(new SmallPossiblyInterruptedRunnable(),
651	>	LONG_DELAY_MS, MILLISECONDS);
652	>	int max = tasks.length;
653	>	if (tasks[4].cancel(true)) --max;
654	>	if (tasks[3].cancel(true)) --max;
655	>	// There must eventually be an interference-free point at
656	>	// which purge will not fail. (At worst, when queue is empty.)
657	>	long startTime = System.nanoTime();
658	>	do {
659	>	p.purge();
660	>	long count = p.getTaskCount();
661	>	if (count == max)
662	>	return;
663	>	} while (millisElapsedSince(startTime) < LONG_DELAY_MS);
664	>	fail("Purge failed to remove cancelled tasks");
665	>	}
666	>	}
667	>
668	>	/**
669	>	* shutdownNow returns a list containing tasks that were not run,
670	>	* and those tasks are drained from the queue
671	>	*/
672	>	public void testShutdownNow() throws InterruptedException {
673	>	final int poolSize = 2;
674	>	final int count = 5;
675	>	final AtomicInteger ran = new AtomicInteger(0);
676	>	final ScheduledThreadPoolExecutor p =
677	>	new ScheduledThreadPoolExecutor(poolSize);
678	>	final CountDownLatch threadsStarted = new CountDownLatch(poolSize);
679	>	Runnable waiter = new CheckedRunnable() { public void realRun() {
680	>	threadsStarted.countDown();
681	>	try {
682	>	MILLISECONDS.sleep(2 * LONG_DELAY_MS);
683	>	} catch (InterruptedException success) {}
684	>	ran.getAndIncrement();
685	>	}};
686	>	for (int i = 0; i < count; i++)
687	>	p.execute(waiter);
688	>	await(threadsStarted);
689	>	assertEquals(poolSize, p.getActiveCount());
690	>	assertEquals(0, p.getCompletedTaskCount());
691	>	final List<Runnable> queuedTasks;
692	>	try {
693	>	queuedTasks = p.shutdownNow();
694	>	} catch (SecurityException ok) {
695	>	return; // Allowed in case test doesn't have privs
696	>	}
697	>	assertTrue(p.isShutdown());
698	>	assertTrue(p.getQueue().isEmpty());
699	>	assertEquals(count - poolSize, queuedTasks.size());
700	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
701	>	assertTrue(p.isTerminated());
702	>	assertEquals(poolSize, ran.get());
703	>	assertEquals(poolSize, p.getCompletedTaskCount());
704	>	}
705	>
706	>	/**
707	>	* shutdownNow returns a list containing tasks that were not run,
708	>	* and those tasks are drained from the queue
709	>	*/
710	>	public void testShutdownNow_delayedTasks() throws InterruptedException {
711	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
712	>	List<ScheduledFuture> tasks = new ArrayList<>();
713	>	for (int i = 0; i < 3; i++) {
714	>	Runnable r = new NoOpRunnable();
715	>	tasks.add(p.schedule(r, 9, SECONDS));
716	>	tasks.add(p.scheduleAtFixedRate(r, 9, 9, SECONDS));
717	>	tasks.add(p.scheduleWithFixedDelay(r, 9, 9, SECONDS));
718	>	}
719	>	if (testImplementationDetails)
720	>	assertEquals(new HashSet(tasks), new HashSet(p.getQueue()));
721	>	final List<Runnable> queuedTasks;
722	>	try {
723	>	queuedTasks = p.shutdownNow();
724	>	} catch (SecurityException ok) {
725	>	return; // Allowed in case test doesn't have privs
726	>	}
727	>	assertTrue(p.isShutdown());
728	>	assertTrue(p.getQueue().isEmpty());
729	>	if (testImplementationDetails)
730	>	assertEquals(new HashSet(tasks), new HashSet(queuedTasks));
731	>	assertEquals(tasks.size(), queuedTasks.size());
732	>	for (ScheduledFuture task : tasks) {
733	>	assertFalse(task.isDone());
734	>	assertFalse(task.isCancelled());
735		}
736	<	int max = 5;
737	<	if (tasks[4].cancel(true)) --max;
481	<	if (tasks[3].cancel(true)) --max;
482	<	p1.purge();
483	<	long count = p1.getTaskCount();
484	<	assertTrue(count > 0 && count <= max);
485	<	joinPool(p1);
486	<	}
487	<
488	<	/**
489	<	*  shutDownNow returns a list containing tasks that were not run
490	<	*/
491	<	public void testShutDownNow() {
492	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
493	<	for(int i = 0; i < 5; i++)
494	<	p1.schedule(new SmallPossiblyInterruptedRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
495	<	List l = p1.shutdownNow();
496	<	assertTrue(p1.isShutdown());
497	<	assertTrue(l.size() > 0 && l.size() <= 5);
498	<	joinPool(p1);
736	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
737	>	assertTrue(p.isTerminated());
738		}
739
740		/**
741	<	* In default setting, shutdown cancels periodic but not delayed
742	<	* tasks at shutdown
743	<	*/
744	<	public void testShutDown1() {
745	<	try {
746	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
747	<	assertTrue(p1.getExecuteExistingDelayedTasksAfterShutdownPolicy());
748	<	assertFalse(p1.getContinueExistingPeriodicTasksAfterShutdownPolicy());
749	<
750	<	ScheduledFuture[] tasks = new ScheduledFuture[5];
751	<	for(int i = 0; i < 5; i++)
752	<	tasks[i] = p1.schedule(new NoOpRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
753	<	p1.shutdown();
754	<	BlockingQueue q = p1.getQueue();
755	<	for (Iterator it = q.iterator(); it.hasNext();) {
756	<	ScheduledFuture t = (ScheduledFuture)it.next();
757	<	assertFalse(t.isCancelled());
741	>	* By default, periodic tasks are cancelled at shutdown.
742	>	* By default, delayed tasks keep running after shutdown.
743	>	* Check that changing the default values work:
744	>	* - setExecuteExistingDelayedTasksAfterShutdownPolicy
745	>	* - setContinueExistingPeriodicTasksAfterShutdownPolicy
746	>	*/
747	>	public void testShutdown_cancellation() throws Exception {
748	>	final int poolSize = 2;
749	>	final ScheduledThreadPoolExecutor p
750	>	= new ScheduledThreadPoolExecutor(poolSize);
751	>	final ThreadLocalRandom rnd = ThreadLocalRandom.current();
752	>	final boolean effectiveDelayedPolicy;
753	>	final boolean effectivePeriodicPolicy;
754	>	final boolean effectiveRemovePolicy;
755	>
756	>	if (rnd.nextBoolean())
757	>	p.setExecuteExistingDelayedTasksAfterShutdownPolicy(
758	>	effectiveDelayedPolicy = rnd.nextBoolean());
759	>	else
760	>	effectiveDelayedPolicy = true;
761	>	assertEquals(effectiveDelayedPolicy,
762	>	p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
763	>
764	>	if (rnd.nextBoolean())
765	>	p.setContinueExistingPeriodicTasksAfterShutdownPolicy(
766	>	effectivePeriodicPolicy = rnd.nextBoolean());
767	>	else
768	>	effectivePeriodicPolicy = false;
769	>	assertEquals(effectivePeriodicPolicy,
770	>	p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
771	>
772	>	if (rnd.nextBoolean())
773	>	p.setRemoveOnCancelPolicy(
774	>	effectiveRemovePolicy = rnd.nextBoolean());
775	>	else
776	>	effectiveRemovePolicy = false;
777	>	assertEquals(effectiveRemovePolicy,
778	>	p.getRemoveOnCancelPolicy());
779	>
780	>	// Strategy: Wedge the pool with poolSize "blocker" threads
781	>	final AtomicInteger ran = new AtomicInteger(0);
782	>	final CountDownLatch poolBlocked = new CountDownLatch(poolSize);
783	>	final CountDownLatch unblock = new CountDownLatch(1);
784	>	final CountDownLatch periodicLatch1 = new CountDownLatch(2);
785	>	final CountDownLatch periodicLatch2 = new CountDownLatch(2);
786	>	Runnable task = new CheckedRunnable() { public void realRun()
787	>	throws InterruptedException {
788	>	poolBlocked.countDown();
789	>	await(unblock);
790	>	ran.getAndIncrement();
791	>	}};
792	>	List<Future<?>> blockers = new ArrayList<>();
793	>	List<Future<?>> periodics = new ArrayList<>();
794	>	List<Future<?>> delayeds = new ArrayList<>();
795	>	for (int i = 0; i < poolSize; i++)
796	>	blockers.add(p.submit(task));
797	>	await(poolBlocked);
798	>
799	>	periodics.add(p.scheduleAtFixedRate(
800	>	countDowner(periodicLatch1), 1, 1, MILLISECONDS));
801	>	periodics.add(p.scheduleWithFixedDelay(
802	>	countDowner(periodicLatch2), 1, 1, MILLISECONDS));
803	>	delayeds.add(p.schedule(task, 1, MILLISECONDS));
804	>
805	>	assertTrue(p.getQueue().containsAll(periodics));
806	>	assertTrue(p.getQueue().containsAll(delayeds));
807	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
808	>	assertTrue(p.isShutdown());
809	>	assertFalse(p.isTerminated());
810	>	for (Future<?> periodic : periodics) {
811	>	assertTrue(effectivePeriodicPolicy ^ periodic.isCancelled());
812	>	assertTrue(effectivePeriodicPolicy ^ periodic.isDone());
813	>	}
814	>	for (Future<?> delayed : delayeds) {
815	>	assertTrue(effectiveDelayedPolicy ^ delayed.isCancelled());
816	>	assertTrue(effectiveDelayedPolicy ^ delayed.isDone());
817	>	}
818	>	if (testImplementationDetails) {
819	>	assertEquals(effectivePeriodicPolicy,
820	>	p.getQueue().containsAll(periodics));
821	>	assertEquals(effectiveDelayedPolicy,
822	>	p.getQueue().containsAll(delayeds));
823	>	}
824	>	unblock.countDown();    // Release all pool threads
825	>
826	>	if (effectiveDelayedPolicy)
827	>	for (Future<?> delayed : delayeds) assertNull(delayed.get());
828	>	if (effectivePeriodicPolicy) {
829	>	await(periodicLatch1);
830	>	await(periodicLatch2);
831	>	for (Future<?> periodic : periodics) {
832	>	assertTrue(periodic.cancel(false));
833	>	assertTrue(periodic.isCancelled());
834	>	assertTrue(periodic.isDone());
835		}
520	–	assertTrue(p1.isShutdown());
521	–	Thread.sleep(SMALL_DELAY_MS);
522	–	for (int i = 0; i < 5; ++i) {
523	–	assertTrue(tasks[i].isDone());
524	–	assertFalse(tasks[i].isCancelled());
525	–	}
526	–
527	–	}
528	–	catch(Exception ex) {
529	–	unexpectedException();
530	–	}
531	–	}
532	–
533	–
534	–	/**
535	–	* If setExecuteExistingDelayedTasksAfterShutdownPolicy is false,
536	–	* delayed tasks are cancelled at shutdown
537	–	*/
538	–	public void testShutDown2() {
539	–	try {
540	–	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
541	–	p1.setExecuteExistingDelayedTasksAfterShutdownPolicy(false);
542	–	ScheduledFuture[] tasks = new ScheduledFuture[5];
543	–	for(int i = 0; i < 5; i++)
544	–	tasks[i] = p1.schedule(new NoOpRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
545	–	p1.shutdown();
546	–	assertTrue(p1.isShutdown());
547	–	BlockingQueue q = p1.getQueue();
548	–	assertTrue(q.isEmpty());
549	–	Thread.sleep(SMALL_DELAY_MS);
550	–	assertTrue(p1.isTerminated());
836		}
837	<	catch(Exception ex) {
838	<	unexpectedException();
839	<	}
555	<	}
556	<
557	<
558	<	/**
559	<	* If setContinueExistingPeriodicTasksAfterShutdownPolicy is set false,
560	<	* periodic tasks are not cancelled at shutdown
561	<	*/
562	<	public void testShutDown3() {
563	<	try {
564	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
565	<	p1.setContinueExistingPeriodicTasksAfterShutdownPolicy(false);
566	<	ScheduledFuture task =
567	<	p1.scheduleAtFixedRate(new NoOpRunnable(), 5, 5, TimeUnit.MILLISECONDS);
568	<	p1.shutdown();
569	<	assertTrue(p1.isShutdown());
570	<	BlockingQueue q = p1.getQueue();
571	<	assertTrue(q.isEmpty());
572	<	Thread.sleep(SHORT_DELAY_MS);
573	<	assertTrue(p1.isTerminated());
574	<	}
575	<	catch(Exception ex) {
576	<	unexpectedException();
577	<	}
578	<	}
837	>	for (Future<?> blocker : blockers) assertNull(blocker.get());
838	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
839	>	assertTrue(p.isTerminated());
840
841	<	/**
842	<	* if setContinueExistingPeriodicTasksAfterShutdownPolicy is true,
843	<	* periodic tasks are cancelled at shutdown
583	<	*/
584	<	public void testShutDown4() {
585	<	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
586	<	try {
587	<	p1.setContinueExistingPeriodicTasksAfterShutdownPolicy(true);
588	<	ScheduledFuture task =
589	<	p1.scheduleAtFixedRate(new NoOpRunnable(), 1, 1, TimeUnit.MILLISECONDS);
590	<	assertFalse(task.isCancelled());
591	<	p1.shutdown();
592	<	assertFalse(task.isCancelled());
593	<	assertFalse(p1.isTerminated());
594	<	assertTrue(p1.isShutdown());
595	<	Thread.sleep(SHORT_DELAY_MS);
596	<	assertFalse(task.isCancelled());
597	<	assertTrue(task.cancel(true));
598	<	assertTrue(task.isDone());
599	<	Thread.sleep(SHORT_DELAY_MS);
600	<	assertTrue(p1.isTerminated());
601	<	}
602	<	catch(Exception ex) {
603	<	unexpectedException();
604	<	}
605	<	finally {
606	<	p1.shutdownNow();
841	>	for (Future<?> future : delayeds) {
842	>	assertTrue(effectiveDelayedPolicy ^ future.isCancelled());
843	>	assertTrue(future.isDone());
844		}
845	+	for (Future<?> future : periodics)
846	+	assertTrue(future.isCancelled());
847	+	for (Future<?> future : blockers)
848	+	assertNull(future.get());
849	+	assertEquals(2 + (effectiveDelayedPolicy ? 1 : 0), ran.get());
850		}
851
852		/**
853		* completed submit of callable returns result
854		*/
855	<	public void testSubmitCallable() {
856	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
857	<	try {
855	>	public void testSubmitCallable() throws Exception {
856	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
857	>	try (PoolCleaner cleaner = cleaner(e)) {
858		Future<String> future = e.submit(new StringTask());
859		String result = future.get();
860		assertSame(TEST_STRING, result);
861		}
620	–	catch (ExecutionException ex) {
621	–	unexpectedException();
622	–	}
623	–	catch (InterruptedException ex) {
624	–	unexpectedException();
625	–	} finally {
626	–	joinPool(e);
627	–	}
862		}
863
864		/**
865		* completed submit of runnable returns successfully
866		*/
867	<	public void testSubmitRunnable() {
868	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
869	<	try {
867	>	public void testSubmitRunnable() throws Exception {
868	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
869	>	try (PoolCleaner cleaner = cleaner(e)) {
870		Future<?> future = e.submit(new NoOpRunnable());
871		future.get();
872		assertTrue(future.isDone());
873		}
640	–	catch (ExecutionException ex) {
641	–	unexpectedException();
642	–	}
643	–	catch (InterruptedException ex) {
644	–	unexpectedException();
645	–	} finally {
646	–	joinPool(e);
647	–	}
874		}
875
876		/**
877		* completed submit of (runnable, result) returns result
878		*/
879	<	public void testSubmitRunnable2() {
880	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
881	<	try {
879	>	public void testSubmitRunnable2() throws Exception {
880	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
881	>	try (PoolCleaner cleaner = cleaner(e)) {
882		Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING);
883		String result = future.get();
884		assertSame(TEST_STRING, result);
885		}
660	–	catch (ExecutionException ex) {
661	–	unexpectedException();
662	–	}
663	–	catch (InterruptedException ex) {
664	–	unexpectedException();
665	–	} finally {
666	–	joinPool(e);
667	–	}
886		}
887
670	–
671	–
672	–
673	–
888		/**
889		* invokeAny(null) throws NPE
890		*/
891	<	public void testInvokeAny1() {
892	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
893	<	try {
894	<	e.invokeAny(null);
895	<	} catch (NullPointerException success) {
896	<	} catch(Exception ex) {
897	<	unexpectedException();
684	<	} finally {
685	<	joinPool(e);
891	>	public void testInvokeAny1() throws Exception {
892	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
893	>	try (PoolCleaner cleaner = cleaner(e)) {
894	>	try {
895	>	e.invokeAny(null);
896	>	shouldThrow();
897	>	} catch (NullPointerException success) {}
898		}
899		}
900
901		/**
902		* invokeAny(empty collection) throws IAE
903		*/
904	<	public void testInvokeAny2() {
905	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
906	<	try {
907	<	e.invokeAny(new ArrayList<Callable<String>>());
908	<	} catch (IllegalArgumentException success) {
909	<	} catch(Exception ex) {
910	<	unexpectedException();
699	<	} finally {
700	<	joinPool(e);
904	>	public void testInvokeAny2() throws Exception {
905	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
906	>	try (PoolCleaner cleaner = cleaner(e)) {
907	>	try {
908	>	e.invokeAny(new ArrayList<Callable<String>>());
909	>	shouldThrow();
910	>	} catch (IllegalArgumentException success) {}
911		}
912		}
913
914		/**
915		* invokeAny(c) throws NPE if c has null elements
916		*/
917	<	public void testInvokeAny3() {
918	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
919	<	try {
920	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
921	<	l.add(new StringTask());
917	>	public void testInvokeAny3() throws Exception {
918	>	CountDownLatch latch = new CountDownLatch(1);
919	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
920	>	try (PoolCleaner cleaner = cleaner(e)) {
921	>	List<Callable<String>> l = new ArrayList<>();
922	>	l.add(latchAwaitingStringTask(latch));
923		l.add(null);
924	<	e.invokeAny(l);
925	<	} catch (NullPointerException success) {
926	<	} catch(Exception ex) {
927	<	unexpectedException();
928	<	} finally {
718	<	joinPool(e);
924	>	try {
925	>	e.invokeAny(l);
926	>	shouldThrow();
927	>	} catch (NullPointerException success) {}
928	>	latch.countDown();
929		}
930		}
931
932		/**
933		* invokeAny(c) throws ExecutionException if no task completes
934		*/
935	<	public void testInvokeAny4() {
936	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
937	<	try {
938	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
935	>	public void testInvokeAny4() throws Exception {
936	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
937	>	try (PoolCleaner cleaner = cleaner(e)) {
938	>	List<Callable<String>> l = new ArrayList<>();
939		l.add(new NPETask());
940	<	e.invokeAny(l);
941	<	} catch (ExecutionException success) {
942	<	} catch(Exception ex) {
943	<	unexpectedException();
944	<	} finally {
945	<	joinPool(e);
940	>	try {
941	>	e.invokeAny(l);
942	>	shouldThrow();
943	>	} catch (ExecutionException success) {
944	>	assertTrue(success.getCause() instanceof NullPointerException);
945	>	}
946		}
947		}
948
949		/**
950		* invokeAny(c) returns result of some task
951		*/
952	<	public void testInvokeAny5() {
953	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
954	<	try {
955	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
952	>	public void testInvokeAny5() throws Exception {
953	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
954	>	try (PoolCleaner cleaner = cleaner(e)) {
955	>	List<Callable<String>> l = new ArrayList<>();
956		l.add(new StringTask());
957		l.add(new StringTask());
958		String result = e.invokeAny(l);
959		assertSame(TEST_STRING, result);
750	–	} catch (ExecutionException success) {
751	–	} catch(Exception ex) {
752	–	unexpectedException();
753	–	} finally {
754	–	joinPool(e);
960		}
961		}
962
963		/**
964		* invokeAll(null) throws NPE
965		*/
966	<	public void testInvokeAll1() {
967	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
968	<	try {
969	<	e.invokeAll(null);
970	<	} catch (NullPointerException success) {
971	<	} catch(Exception ex) {
972	<	unexpectedException();
768	<	} finally {
769	<	joinPool(e);
966	>	public void testInvokeAll1() throws Exception {
967	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
968	>	try (PoolCleaner cleaner = cleaner(e)) {
969	>	try {
970	>	e.invokeAll(null);
971	>	shouldThrow();
972	>	} catch (NullPointerException success) {}
973		}
974		}
975
976		/**
977		* invokeAll(empty collection) returns empty collection
978		*/
979	<	public void testInvokeAll2() {
980	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
981	<	try {
979	>	public void testInvokeAll2() throws Exception {
980	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
981	>	try (PoolCleaner cleaner = cleaner(e)) {
982		List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>());
983		assertTrue(r.isEmpty());
781	–	} catch(Exception ex) {
782	–	unexpectedException();
783	–	} finally {
784	–	joinPool(e);
984		}
985		}
986
987		/**
988		* invokeAll(c) throws NPE if c has null elements
989		*/
990	<	public void testInvokeAll3() {
991	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
992	<	try {
993	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
990	>	public void testInvokeAll3() throws Exception {
991	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
992	>	try (PoolCleaner cleaner = cleaner(e)) {
993	>	List<Callable<String>> l = new ArrayList<>();
994		l.add(new StringTask());
995		l.add(null);
996	<	e.invokeAll(l);
997	<	} catch (NullPointerException success) {
998	<	} catch(Exception ex) {
999	<	unexpectedException();
801	<	} finally {
802	<	joinPool(e);
996	>	try {
997	>	e.invokeAll(l);
998	>	shouldThrow();
999	>	} catch (NullPointerException success) {}
1000		}
1001		}
1002
1003		/**
1004		* get of invokeAll(c) throws exception on failed task
1005		*/
1006	<	public void testInvokeAll4() {
1007	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1008	<	try {
1009	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1006	>	public void testInvokeAll4() throws Exception {
1007	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1008	>	try (PoolCleaner cleaner = cleaner(e)) {
1009	>	List<Callable<String>> l = new ArrayList<>();
1010		l.add(new NPETask());
1011	<	List<Future<String>> result = e.invokeAll(l);
1012	<	assertEquals(1, result.size());
1013	<	for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
1014	<	it.next().get();
1015	<	} catch(ExecutionException success) {
1016	<	} catch(Exception ex) {
1017	<	unexpectedException();
1018	<	} finally {
822	<	joinPool(e);
1011	>	List<Future<String>> futures = e.invokeAll(l);
1012	>	assertEquals(1, futures.size());
1013	>	try {
1014	>	futures.get(0).get();
1015	>	shouldThrow();
1016	>	} catch (ExecutionException success) {
1017	>	assertTrue(success.getCause() instanceof NullPointerException);
1018	>	}
1019		}
1020		}
1021
1022		/**
1023		* invokeAll(c) returns results of all completed tasks
1024		*/
1025	<	public void testInvokeAll5() {
1026	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1027	<	try {
1028	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1025	>	public void testInvokeAll5() throws Exception {
1026	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1027	>	try (PoolCleaner cleaner = cleaner(e)) {
1028	>	List<Callable<String>> l = new ArrayList<>();
1029		l.add(new StringTask());
1030		l.add(new StringTask());
1031	<	List<Future<String>> result = e.invokeAll(l);
1032	<	assertEquals(2, result.size());
1033	<	for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
1034	<	assertSame(TEST_STRING, it.next().get());
839	<	} catch (ExecutionException success) {
840	<	} catch(Exception ex) {
841	<	unexpectedException();
842	<	} finally {
843	<	joinPool(e);
1031	>	List<Future<String>> futures = e.invokeAll(l);
1032	>	assertEquals(2, futures.size());
1033	>	for (Future<String> future : futures)
1034	>	assertSame(TEST_STRING, future.get());
1035		}
1036		}
1037
1038		/**
1039		* timed invokeAny(null) throws NPE
1040		*/
1041	<	public void testTimedInvokeAny1() {
1042	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1043	<	try {
1044	<	e.invokeAny(null, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1045	<	} catch (NullPointerException success) {
1046	<	} catch(Exception ex) {
1047	<	unexpectedException();
857	<	} finally {
858	<	joinPool(e);
1041	>	public void testTimedInvokeAny1() throws Exception {
1042	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1043	>	try (PoolCleaner cleaner = cleaner(e)) {
1044	>	try {
1045	>	e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS);
1046	>	shouldThrow();
1047	>	} catch (NullPointerException success) {}
1048		}
1049		}
1050
1051		/**
1052		* timed invokeAny(,,null) throws NPE
1053		*/
1054	<	public void testTimedInvokeAnyNullTimeUnit() {
1055	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1056	<	try {
1057	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1054	>	public void testTimedInvokeAnyNullTimeUnit() throws Exception {
1055	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1056	>	try (PoolCleaner cleaner = cleaner(e)) {
1057	>	List<Callable<String>> l = new ArrayList<>();
1058		l.add(new StringTask());
1059	<	e.invokeAny(l, MEDIUM_DELAY_MS, null);
1060	<	} catch (NullPointerException success) {
1061	<	} catch(Exception ex) {
1062	<	unexpectedException();
874	<	} finally {
875	<	joinPool(e);
1059	>	try {
1060	>	e.invokeAny(l, MEDIUM_DELAY_MS, null);
1061	>	shouldThrow();
1062	>	} catch (NullPointerException success) {}
1063		}
1064		}
1065
1066		/**
1067		* timed invokeAny(empty collection) throws IAE
1068		*/
1069	<	public void testTimedInvokeAny2() {
1070	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1071	<	try {
1072	<	e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1073	<	} catch (IllegalArgumentException success) {
1074	<	} catch(Exception ex) {
1075	<	unexpectedException();
889	<	} finally {
890	<	joinPool(e);
1069	>	public void testTimedInvokeAny2() throws Exception {
1070	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1071	>	try (PoolCleaner cleaner = cleaner(e)) {
1072	>	try {
1073	>	e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
1074	>	shouldThrow();
1075	>	} catch (IllegalArgumentException success) {}
1076		}
1077		}
1078
1079		/**
1080		* timed invokeAny(c) throws NPE if c has null elements
1081		*/
1082	<	public void testTimedInvokeAny3() {
1083	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1084	<	try {
1085	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1086	<	l.add(new StringTask());
1082	>	public void testTimedInvokeAny3() throws Exception {
1083	>	CountDownLatch latch = new CountDownLatch(1);
1084	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1085	>	try (PoolCleaner cleaner = cleaner(e)) {
1086	>	List<Callable<String>> l = new ArrayList<>();
1087	>	l.add(latchAwaitingStringTask(latch));
1088		l.add(null);
1089	<	e.invokeAny(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1090	<	} catch (NullPointerException success) {
1091	<	} catch(Exception ex) {
1092	<	ex.printStackTrace();
1093	<	unexpectedException();
908	<	} finally {
909	<	joinPool(e);
1089	>	try {
1090	>	e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1091	>	shouldThrow();
1092	>	} catch (NullPointerException success) {}
1093	>	latch.countDown();
1094		}
1095		}
1096
1097		/**
1098		* timed invokeAny(c) throws ExecutionException if no task completes
1099		*/
1100	<	public void testTimedInvokeAny4() {
1101	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1102	<	try {
1103	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1100	>	public void testTimedInvokeAny4() throws Exception {
1101	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1102	>	try (PoolCleaner cleaner = cleaner(e)) {
1103	>	long startTime = System.nanoTime();
1104	>	List<Callable<String>> l = new ArrayList<>();
1105		l.add(new NPETask());
1106	<	e.invokeAny(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1107	<	} catch(ExecutionException success) {
1108	<	} catch(Exception ex) {
1109	<	unexpectedException();
1110	<	} finally {
1111	<	joinPool(e);
1106	>	try {
1107	>	e.invokeAny(l, LONG_DELAY_MS, MILLISECONDS);
1108	>	shouldThrow();
1109	>	} catch (ExecutionException success) {
1110	>	assertTrue(success.getCause() instanceof NullPointerException);
1111	>	}
1112	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1113		}
1114		}
1115
1116		/**
1117		* timed invokeAny(c) returns result of some task
1118		*/
1119	<	public void testTimedInvokeAny5() {
1120	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1121	<	try {
1122	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1119	>	public void testTimedInvokeAny5() throws Exception {
1120	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1121	>	try (PoolCleaner cleaner = cleaner(e)) {
1122	>	long startTime = System.nanoTime();
1123	>	List<Callable<String>> l = new ArrayList<>();
1124		l.add(new StringTask());
1125		l.add(new StringTask());
1126	<	String result = e.invokeAny(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1126	>	String result = e.invokeAny(l, LONG_DELAY_MS, MILLISECONDS);
1127		assertSame(TEST_STRING, result);
1128	<	} catch (ExecutionException success) {
942	<	} catch(Exception ex) {
943	<	unexpectedException();
944	<	} finally {
945	<	joinPool(e);
1128	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1129		}
1130		}
1131
1132		/**
1133		* timed invokeAll(null) throws NPE
1134		*/
1135	<	public void testTimedInvokeAll1() {
1136	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1137	<	try {
1138	<	e.invokeAll(null, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1139	<	} catch (NullPointerException success) {
1140	<	} catch(Exception ex) {
1141	<	unexpectedException();
959	<	} finally {
960	<	joinPool(e);
1135	>	public void testTimedInvokeAll1() throws Exception {
1136	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1137	>	try (PoolCleaner cleaner = cleaner(e)) {
1138	>	try {
1139	>	e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS);
1140	>	shouldThrow();
1141	>	} catch (NullPointerException success) {}
1142		}
1143		}
1144
1145		/**
1146		* timed invokeAll(,,null) throws NPE
1147		*/
1148	<	public void testTimedInvokeAllNullTimeUnit() {
1149	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1150	<	try {
1151	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1148	>	public void testTimedInvokeAllNullTimeUnit() throws Exception {
1149	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1150	>	try (PoolCleaner cleaner = cleaner(e)) {
1151	>	List<Callable<String>> l = new ArrayList<>();
1152		l.add(new StringTask());
1153	<	e.invokeAll(l, MEDIUM_DELAY_MS, null);
1154	<	} catch (NullPointerException success) {
1155	<	} catch(Exception ex) {
1156	<	unexpectedException();
976	<	} finally {
977	<	joinPool(e);
1153	>	try {
1154	>	e.invokeAll(l, MEDIUM_DELAY_MS, null);
1155	>	shouldThrow();
1156	>	} catch (NullPointerException success) {}
1157		}
1158		}
1159
1160		/**
1161		* timed invokeAll(empty collection) returns empty collection
1162		*/
1163	<	public void testTimedInvokeAll2() {
1164	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1165	<	try {
1166	<	List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1163	>	public void testTimedInvokeAll2() throws Exception {
1164	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1165	>	try (PoolCleaner cleaner = cleaner(e)) {
1166	>	List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(),
1167	>	MEDIUM_DELAY_MS, MILLISECONDS);
1168		assertTrue(r.isEmpty());
989	–	} catch(Exception ex) {
990	–	unexpectedException();
991	–	} finally {
992	–	joinPool(e);
1169		}
1170		}
1171
1172		/**
1173		* timed invokeAll(c) throws NPE if c has null elements
1174		*/
1175	<	public void testTimedInvokeAll3() {
1176	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1177	<	try {
1178	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1175	>	public void testTimedInvokeAll3() throws Exception {
1176	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1177	>	try (PoolCleaner cleaner = cleaner(e)) {
1178	>	List<Callable<String>> l = new ArrayList<>();
1179		l.add(new StringTask());
1180		l.add(null);
1181	<	e.invokeAll(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1182	<	} catch (NullPointerException success) {
1183	<	} catch(Exception ex) {
1184	<	unexpectedException();
1009	<	} finally {
1010	<	joinPool(e);
1181	>	try {
1182	>	e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1183	>	shouldThrow();
1184	>	} catch (NullPointerException success) {}
1185		}
1186		}
1187
1188		/**
1189		* get of element of invokeAll(c) throws exception on failed task
1190		*/
1191	<	public void testTimedInvokeAll4() {
1192	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1193	<	try {
1194	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1191	>	public void testTimedInvokeAll4() throws Exception {
1192	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1193	>	try (PoolCleaner cleaner = cleaner(e)) {
1194	>	List<Callable<String>> l = new ArrayList<>();
1195		l.add(new NPETask());
1196	<	List<Future<String>> result = e.invokeAll(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1197	<	assertEquals(1, result.size());
1198	<	for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
1199	<	it.next().get();
1200	<	} catch(ExecutionException success) {
1201	<	} catch(Exception ex) {
1202	<	unexpectedException();
1203	<	} finally {
1204	<	joinPool(e);
1196	>	List<Future<String>> futures =
1197	>	e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS);
1198	>	assertEquals(1, futures.size());
1199	>	try {
1200	>	futures.get(0).get();
1201	>	shouldThrow();
1202	>	} catch (ExecutionException success) {
1203	>	assertTrue(success.getCause() instanceof NullPointerException);
1204	>	}
1205		}
1206		}
1207
1208		/**
1209		* timed invokeAll(c) returns results of all completed tasks
1210		*/
1211	<	public void testTimedInvokeAll5() {
1212	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1213	<	try {
1214	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1211	>	public void testTimedInvokeAll5() throws Exception {
1212	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1213	>	try (PoolCleaner cleaner = cleaner(e)) {
1214	>	List<Callable<String>> l = new ArrayList<>();
1215		l.add(new StringTask());
1216		l.add(new StringTask());
1217	<	List<Future<String>> result = e.invokeAll(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1218	<	assertEquals(2, result.size());
1219	<	for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
1220	<	assertSame(TEST_STRING, it.next().get());
1221	<	} catch (ExecutionException success) {
1048	<	} catch(Exception ex) {
1049	<	unexpectedException();
1050	<	} finally {
1051	<	joinPool(e);
1217	>	List<Future<String>> futures =
1218	>	e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS);
1219	>	assertEquals(2, futures.size());
1220	>	for (Future<String> future : futures)
1221	>	assertSame(TEST_STRING, future.get());
1222		}
1223		}
1224
1225		/**
1226		* timed invokeAll(c) cancels tasks not completed by timeout
1227		*/
1228	<	public void testTimedInvokeAll6() {
1229	<	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1230	<	try {
1231	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1232	<	l.add(new StringTask());
1233	<	l.add(Executors.callable(new MediumPossiblyInterruptedRunnable(), TEST_STRING));
1234	<	l.add(new StringTask());
1235	<	List<Future<String>> result = e.invokeAll(l, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
1236	<	assertEquals(3, result.size());
1237	<	Iterator<Future<String>> it = result.iterator();
1238	<	Future<String> f1 = it.next();
1239	<	Future<String> f2 = it.next();
1240	<	Future<String> f3 = it.next();
1241	<	assertTrue(f1.isDone());
1242	<	assertTrue(f2.isDone());
1243	<	assertTrue(f3.isDone());
1244	<	assertFalse(f1.isCancelled());
1245	<	assertTrue(f2.isCancelled());
1246	<	} catch(Exception ex) {
1247	<	unexpectedException();
1248	<	} finally {
1249	<	joinPool(e);
1228	>	public void testTimedInvokeAll6() throws Exception {
1229	>	for (long timeout = timeoutMillis();;) {
1230	>	final CountDownLatch done = new CountDownLatch(1);
1231	>	final Callable<String> waiter = new CheckedCallable<String>() {
1232	>	public String realCall() {
1233	>	try { done.await(LONG_DELAY_MS, MILLISECONDS); }
1234	>	catch (InterruptedException ok) {}
1235	>	return "1"; }};
1236	>	final ExecutorService p = new ScheduledThreadPoolExecutor(2);
1237	>	try (PoolCleaner cleaner = cleaner(p, done)) {
1238	>	List<Callable<String>> tasks = new ArrayList<>();
1239	>	tasks.add(new StringTask("0"));
1240	>	tasks.add(waiter);
1241	>	tasks.add(new StringTask("2"));
1242	>	long startTime = System.nanoTime();
1243	>	List<Future<String>> futures =
1244	>	p.invokeAll(tasks, timeout, MILLISECONDS);
1245	>	assertEquals(tasks.size(), futures.size());
1246	>	assertTrue(millisElapsedSince(startTime) >= timeout);
1247	>	for (Future future : futures)
1248	>	assertTrue(future.isDone());
1249	>	assertTrue(futures.get(1).isCancelled());
1250	>	try {
1251	>	assertEquals("0", futures.get(0).get());
1252	>	assertEquals("2", futures.get(2).get());
1253	>	break;
1254	>	} catch (CancellationException retryWithLongerTimeout) {
1255	>	timeout *= 2;
1256	>	if (timeout >= LONG_DELAY_MS / 2)
1257	>	fail("expected exactly one task to be cancelled");
1258	>	}
1259	>	}
1260		}
1261		}
1262
1263	+	/**
1264	+	* A fixed delay task with overflowing period should not prevent a
1265	+	* one-shot task from executing.
1266	+	* https://bugs.openjdk.java.net/browse/JDK-8051859
1267	+	*/
1268	+	public void testScheduleWithFixedDelay_overflow() throws Exception {
1269	+	final CountDownLatch delayedDone = new CountDownLatch(1);
1270	+	final CountDownLatch immediateDone = new CountDownLatch(1);
1271	+	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
1272	+	try (PoolCleaner cleaner = cleaner(p)) {
1273	+	final Runnable immediate = new Runnable() { public void run() {
1274	+	immediateDone.countDown();
1275	+	}};
1276	+	final Runnable delayed = new Runnable() { public void run() {
1277	+	delayedDone.countDown();
1278	+	p.submit(immediate);
1279	+	}};
1280	+	p.scheduleWithFixedDelay(delayed, 0L, Long.MAX_VALUE, SECONDS);
1281	+	await(delayedDone);
1282	+	await(immediateDone);
1283	+	}
1284	+	}
1285
1286		}

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