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Comparing jsr166/src/test/tck/ScheduledExecutorSubclassTest.java (file contents):
Revision 1.4 by jsr166, Mon Nov 16 05:30:08 2009 UTC vs.
Revision 1.61 by jsr166, Mon Feb 22 23:16:06 2016 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
4	>	* http://creativecommons.org/publicdomain/zero/1.0/
5		*/
6
7	<	import junit.framework.*;
8	<	import java.util.*;
9	<	import java.util.concurrent.*;
10	<	import java.util.concurrent.atomic.*;
7	>	import static java.util.concurrent.TimeUnit.MILLISECONDS;
8	>	import static java.util.concurrent.TimeUnit.NANOSECONDS;
9	>	import static java.util.concurrent.TimeUnit.SECONDS;
10	>
11	>	import java.util.ArrayList;
12	>	import java.util.HashSet;
13	>	import java.util.List;
14	>	import java.util.concurrent.BlockingQueue;
15	>	import java.util.concurrent.Callable;
16	>	import java.util.concurrent.CancellationException;
17	>	import java.util.concurrent.CountDownLatch;
18	>	import java.util.concurrent.Delayed;
19	>	import java.util.concurrent.ExecutionException;
20	>	import java.util.concurrent.Executors;
21	>	import java.util.concurrent.ExecutorService;
22	>	import java.util.concurrent.Future;
23	>	import java.util.concurrent.RejectedExecutionException;
24	>	import java.util.concurrent.RejectedExecutionHandler;
25	>	import java.util.concurrent.RunnableScheduledFuture;
26	>	import java.util.concurrent.ScheduledFuture;
27	>	import java.util.concurrent.ScheduledThreadPoolExecutor;
28	>	import java.util.concurrent.ThreadFactory;
29	>	import java.util.concurrent.ThreadPoolExecutor;
30	>	import java.util.concurrent.TimeoutException;
31	>	import java.util.concurrent.TimeUnit;
32	>	import java.util.concurrent.atomic.AtomicBoolean;
33	>	import java.util.concurrent.atomic.AtomicInteger;
34	>	import java.util.concurrent.atomic.AtomicLong;
35	>
36	>	import junit.framework.Test;
37	>	import junit.framework.TestSuite;
38
39		public class ScheduledExecutorSubclassTest extends JSR166TestCase {
40		public static void main(String[] args) {
41	<	junit.textui.TestRunner.run (suite());
41	>	main(suite(), args);
42		}
43		public static Test suite() {
44	<	return new TestSuite(ScheduledExecutorTest.class);
44	>	return new TestSuite(ScheduledExecutorSubclassTest.class);
45		}
46
47		static class CustomTask<V> implements RunnableScheduledFuture<V> {
#	Line 35 | Line 62 | public class ScheduledExecutorSubclassTe
62		}
63		public boolean isCancelled() { return task.isCancelled(); }
64		public boolean isDone() { return task.isDone(); }
65	<	public V get() throws InterruptedException,  ExecutionException {
65	>	public V get() throws InterruptedException, ExecutionException {
66		V v = task.get();
67		assertTrue(ran);
68		return v;
69		}
70	<	public V get(long time, TimeUnit unit) throws InterruptedException,  ExecutionException, TimeoutException {
70	>	public V get(long time, TimeUnit unit) throws InterruptedException, ExecutionException, TimeoutException {
71		V v = task.get(time, unit);
72		assertTrue(ran);
73		return v;
74		}
75		}
76
50	–
77		public class CustomExecutor extends ScheduledThreadPoolExecutor {
78
79		protected <V> RunnableScheduledFuture<V> decorateTask(Runnable r, RunnableScheduledFuture<V> task) {
#	Line 57 | Line 83 | public class ScheduledExecutorSubclassTe
83		protected <V> RunnableScheduledFuture<V> decorateTask(Callable<V> c, RunnableScheduledFuture<V> task) {
84		return new CustomTask<V>(task);
85		}
86	<	CustomExecutor(int corePoolSize) { super(corePoolSize);}
86	>	CustomExecutor(int corePoolSize) { super(corePoolSize); }
87		CustomExecutor(int corePoolSize, RejectedExecutionHandler handler) {
88		super(corePoolSize, handler);
89		}
#	Line 72 | Line 98 | public class ScheduledExecutorSubclassTe
98
99		}
100
75	–
76	–
101		/**
102		* execute successfully executes a runnable
103		*/
104	<	public void testExecute() {
105	<	try {
106	<	TrackedShortRunnable runnable =new TrackedShortRunnable();
107	<	CustomExecutor p1 = new CustomExecutor(1);
108	<	p1.execute(runnable);
109	<	assertFalse(runnable.done);
110	<	Thread.sleep(SHORT_DELAY_MS);
111	<	try { p1.shutdown(); } catch (SecurityException ok) { return; }
88	<	try {
89	<	Thread.sleep(MEDIUM_DELAY_MS);
90	<	} catch (InterruptedException e) {
91	<	unexpectedException();
92	<	}
93	<	assertTrue(runnable.done);
94	<	try { p1.shutdown(); } catch (SecurityException ok) { return; }
95	<	joinPool(p1);
96	<	}
97	<	catch (Exception e) {
98	<	unexpectedException();
104	>	public void testExecute() throws InterruptedException {
105	>	final CustomExecutor p = new CustomExecutor(1);
106	>	try (PoolCleaner cleaner = cleaner(p)) {
107	>	final CountDownLatch done = new CountDownLatch(1);
108	>	final Runnable task = new CheckedRunnable() {
109	>	public void realRun() { done.countDown(); }};
110	>	p.execute(task);
111	>	await(done);
112		}
100	–
113		}
114
103	–
115		/**
116		* delayed schedule of callable successfully executes after delay
117		*/
118	<	public void testSchedule1() {
119	<	try {
120	<	TrackedCallable callable = new TrackedCallable();
121	<	CustomExecutor p1 = new CustomExecutor(1);
122	<	Future f = p1.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
123	<	assertFalse(callable.done);
124	<	Thread.sleep(MEDIUM_DELAY_MS);
125	<	assertTrue(callable.done);
126	<	assertEquals(Boolean.TRUE, f.get());
127	<	try { p1.shutdown(); } catch (SecurityException ok) { return; }
128	<	joinPool(p1);
129	<	} catch (RejectedExecutionException e) {}
130	<	catch (Exception e) {
131	<	e.printStackTrace();
121	<	unexpectedException();
118	>	public void testSchedule1() throws Exception {
119	>	final CountDownLatch done = new CountDownLatch(1);
120	>	final CustomExecutor p = new CustomExecutor(1);
121	>	try (PoolCleaner cleaner = cleaner(p, done)) {
122	>	final long startTime = System.nanoTime();
123	>	Callable task = new CheckedCallable<Boolean>() {
124	>	public Boolean realCall() {
125	>	done.countDown();
126	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
127	>	return Boolean.TRUE;
128	>	}};
129	>	Future f = p.schedule(task, timeoutMillis(), MILLISECONDS);
130	>	assertSame(Boolean.TRUE, f.get());
131	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
132		}
133		}
134
135		/**
136	<	*  delayed schedule of runnable successfully executes after delay
137	<	*/
138	<	public void testSchedule3() {
139	<	try {
140	<	TrackedShortRunnable runnable = new TrackedShortRunnable();
141	<	CustomExecutor p1 = new CustomExecutor(1);
142	<	p1.schedule(runnable, SMALL_DELAY_MS, TimeUnit.MILLISECONDS);
143	<	Thread.sleep(SHORT_DELAY_MS);
144	<	assertFalse(runnable.done);
145	<	Thread.sleep(MEDIUM_DELAY_MS);
146	<	assertTrue(runnable.done);
147	<	try { p1.shutdown(); } catch (SecurityException ok) { return; }
148	<	joinPool(p1);
149	<	} catch (Exception e) {
150	<	unexpectedException();
136	>	* delayed schedule of runnable successfully executes after delay
137	>	*/
138	>	public void testSchedule3() throws Exception {
139	>	final CustomExecutor p = new CustomExecutor(1);
140	>	try (PoolCleaner cleaner = cleaner(p)) {
141	>	final long startTime = System.nanoTime();
142	>	final CountDownLatch done = new CountDownLatch(1);
143	>	Runnable task = new CheckedRunnable() {
144	>	public void realRun() {
145	>	done.countDown();
146	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
147	>	}};
148	>	Future f = p.schedule(task, timeoutMillis(), MILLISECONDS);
149	>	await(done);
150	>	assertNull(f.get(LONG_DELAY_MS, MILLISECONDS));
151	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
152		}
153		}
154
155		/**
156		* scheduleAtFixedRate executes runnable after given initial delay
157		*/
158	<	public void testSchedule4() {
159	<	try {
160	<	TrackedShortRunnable runnable = new TrackedShortRunnable();
161	<	CustomExecutor p1 = new CustomExecutor(1);
162	<	ScheduledFuture h = p1.scheduleAtFixedRate(runnable, SHORT_DELAY_MS, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
163	<	assertFalse(runnable.done);
164	<	Thread.sleep(MEDIUM_DELAY_MS);
165	<	assertTrue(runnable.done);
166	<	h.cancel(true);
167	<	joinPool(p1);
168	<	} catch (Exception e) {
169	<	unexpectedException();
158	>	public void testSchedule4() throws InterruptedException {
159	>	final CustomExecutor p = new CustomExecutor(1);
160	>	try (PoolCleaner cleaner = cleaner(p)) {
161	>	final long startTime = System.nanoTime();
162	>	final CountDownLatch done = new CountDownLatch(1);
163	>	Runnable task = new CheckedRunnable() {
164	>	public void realRun() {
165	>	done.countDown();
166	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
167	>	}};
168	>	ScheduledFuture f =
169	>	p.scheduleAtFixedRate(task, timeoutMillis(),
170	>	LONG_DELAY_MS, MILLISECONDS);
171	>	await(done);
172	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
173	>	f.cancel(true);
174		}
175		}
176
162	–	static class RunnableCounter implements Runnable {
163	–	AtomicInteger count = new AtomicInteger(0);
164	–	public void run() { count.getAndIncrement(); }
165	–	}
166	–
177		/**
178		* scheduleWithFixedDelay executes runnable after given initial delay
179		*/
180	<	public void testSchedule5() {
181	<	try {
182	<	TrackedShortRunnable runnable = new TrackedShortRunnable();
183	<	CustomExecutor p1 = new CustomExecutor(1);
184	<	ScheduledFuture h = p1.scheduleWithFixedDelay(runnable, SHORT_DELAY_MS, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
185	<	assertFalse(runnable.done);
186	<	Thread.sleep(MEDIUM_DELAY_MS);
187	<	assertTrue(runnable.done);
188	<	h.cancel(true);
189	<	joinPool(p1);
190	<	} catch (Exception e) {
191	<	unexpectedException();
180	>	public void testSchedule5() throws InterruptedException {
181	>	final CustomExecutor p = new CustomExecutor(1);
182	>	try (PoolCleaner cleaner = cleaner(p)) {
183	>	final long startTime = System.nanoTime();
184	>	final CountDownLatch done = new CountDownLatch(1);
185	>	Runnable task = new CheckedRunnable() {
186	>	public void realRun() {
187	>	done.countDown();
188	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
189	>	}};
190	>	ScheduledFuture f =
191	>	p.scheduleWithFixedDelay(task, timeoutMillis(),
192	>	LONG_DELAY_MS, MILLISECONDS);
193	>	await(done);
194	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
195	>	f.cancel(true);
196		}
197		}
198
199	+	static class RunnableCounter implements Runnable {
200	+	AtomicInteger count = new AtomicInteger(0);
201	+	public void run() { count.getAndIncrement(); }
202	+	}
203	+
204		/**
205	<	* scheduleAtFixedRate executes series of tasks at given rate
206	<	*/
207	<	public void testFixedRateSequence() {
208	<	try {
209	<	CustomExecutor p1 = new CustomExecutor(1);
210	<	RunnableCounter counter = new RunnableCounter();
211	<	ScheduledFuture h =
212	<	p1.scheduleAtFixedRate(counter, 0, 1, TimeUnit.MILLISECONDS);
213	<	Thread.sleep(SMALL_DELAY_MS);
214	<	h.cancel(true);
215	<	int c = counter.count.get();
216	<	// By time scaling conventions, we must have at least
217	<	// an execution per SHORT delay, but no more than one SHORT more
218	<	assertTrue(c >= SMALL_DELAY_MS / SHORT_DELAY_MS);
219	<	assertTrue(c <= SMALL_DELAY_MS + SHORT_DELAY_MS);
220	<	joinPool(p1);
221	<	} catch (Exception e) {
222	<	unexpectedException();
205	>	* scheduleAtFixedRate executes series of tasks at given rate.
206	>	* Eventually, it must hold that:
207	>	*   cycles - 1 <= elapsedMillis/delay < cycles
208	>	*/
209	>	public void testFixedRateSequence() throws InterruptedException {
210	>	final CustomExecutor p = new CustomExecutor(1);
211	>	try (PoolCleaner cleaner = cleaner(p)) {
212	>	for (int delay = 1; delay <= LONG_DELAY_MS; delay *= 3) {
213	>	final long startTime = System.nanoTime();
214	>	final int cycles = 8;
215	>	final CountDownLatch done = new CountDownLatch(cycles);
216	>	final Runnable task = new CheckedRunnable() {
217	>	public void realRun() { done.countDown(); }};
218	>	final ScheduledFuture periodicTask =
219	>	p.scheduleAtFixedRate(task, 0, delay, MILLISECONDS);
220	>	final int totalDelayMillis = (cycles - 1) * delay;
221	>	await(done, totalDelayMillis + LONG_DELAY_MS);
222	>	periodicTask.cancel(true);
223	>	final long elapsedMillis = millisElapsedSince(startTime);
224	>	assertTrue(elapsedMillis >= totalDelayMillis);
225	>	if (elapsedMillis <= cycles * delay)
226	>	return;
227	>	// else retry with longer delay
228	>	}
229	>	fail("unexpected execution rate");
230		}
231		}
232
233		/**
234	<	* scheduleWithFixedDelay executes series of tasks with given period
235	<	*/
236	<	public void testFixedDelaySequence() {
237	<	try {
238	<	CustomExecutor p1 = new CustomExecutor(1);
239	<	RunnableCounter counter = new RunnableCounter();
240	<	ScheduledFuture h =
241	<	p1.scheduleWithFixedDelay(counter, 0, 1, TimeUnit.MILLISECONDS);
242	<	Thread.sleep(SMALL_DELAY_MS);
243	<	h.cancel(true);
244	<	int c = counter.count.get();
245	<	assertTrue(c >= SMALL_DELAY_MS / SHORT_DELAY_MS);
246	<	assertTrue(c <= SMALL_DELAY_MS + SHORT_DELAY_MS);
247	<	joinPool(p1);
248	<	} catch (Exception e) {
249	<	unexpectedException();
234	>	* scheduleWithFixedDelay executes series of tasks with given period.
235	>	* Eventually, it must hold that each task starts at least delay and at
236	>	* most 2 * delay after the termination of the previous task.
237	>	*/
238	>	public void testFixedDelaySequence() throws InterruptedException {
239	>	final CustomExecutor p = new CustomExecutor(1);
240	>	try (PoolCleaner cleaner = cleaner(p)) {
241	>	for (int delay = 1; delay <= LONG_DELAY_MS; delay *= 3) {
242	>	final long startTime = System.nanoTime();
243	>	final AtomicLong previous = new AtomicLong(startTime);
244	>	final AtomicBoolean tryLongerDelay = new AtomicBoolean(false);
245	>	final int cycles = 8;
246	>	final CountDownLatch done = new CountDownLatch(cycles);
247	>	final int d = delay;
248	>	final Runnable task = new CheckedRunnable() {
249	>	public void realRun() {
250	>	long now = System.nanoTime();
251	>	long elapsedMillis
252	>	= NANOSECONDS.toMillis(now - previous.get());
253	>	if (done.getCount() == cycles) { // first execution
254	>	if (elapsedMillis >= d)
255	>	tryLongerDelay.set(true);
256	>	} else {
257	>	assertTrue(elapsedMillis >= d);
258	>	if (elapsedMillis >= 2 * d)
259	>	tryLongerDelay.set(true);
260	>	}
261	>	previous.set(now);
262	>	done.countDown();
263	>	}};
264	>	final ScheduledFuture periodicTask =
265	>	p.scheduleWithFixedDelay(task, 0, delay, MILLISECONDS);
266	>	final int totalDelayMillis = (cycles - 1) * delay;
267	>	await(done, totalDelayMillis + cycles * LONG_DELAY_MS);
268	>	periodicTask.cancel(true);
269	>	final long elapsedMillis = millisElapsedSince(startTime);
270	>	assertTrue(elapsedMillis >= totalDelayMillis);
271	>	if (!tryLongerDelay.get())
272	>	return;
273	>	// else retry with longer delay
274	>	}
275	>	fail("unexpected execution rate");
276		}
277		}
278
227	–
279		/**
280	<	*  execute (null) throws NPE
280	>	* execute(null) throws NPE
281		*/
282	<	public void testExecuteNull() {
283	<	CustomExecutor se = null;
284	<	try {
285	<	se = new CustomExecutor(1);
286	<	se.execute(null);
287	<	shouldThrow();
288	<	} catch (NullPointerException success) {}
238	<	catch (Exception e) {
239	<	unexpectedException();
282	>	public void testExecuteNull() throws InterruptedException {
283	>	final CustomExecutor p = new CustomExecutor(1);
284	>	try (PoolCleaner cleaner = cleaner(p)) {
285	>	try {
286	>	p.execute(null);
287	>	shouldThrow();
288	>	} catch (NullPointerException success) {}
289		}
241	–
242	–	joinPool(se);
290		}
291
292		/**
293	<	* schedule (null) throws NPE
293	>	* schedule(null) throws NPE
294		*/
295	<	public void testScheduleNull() {
296	<	CustomExecutor se = new CustomExecutor(1);
297	<	try {
298	<	TrackedCallable callable = null;
299	<	Future f = se.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
300	<	shouldThrow();
301	<	} catch (NullPointerException success) {}
302	<	catch (Exception e) {
256	<	unexpectedException();
295	>	public void testScheduleNull() throws InterruptedException {
296	>	final CustomExecutor p = new CustomExecutor(1);
297	>	try (PoolCleaner cleaner = cleaner(p)) {
298	>	try {
299	>	TrackedCallable callable = null;
300	>	Future f = p.schedule(callable, SHORT_DELAY_MS, MILLISECONDS);
301	>	shouldThrow();
302	>	} catch (NullPointerException success) {}
303		}
258	–	joinPool(se);
304		}
305
306		/**
307		* execute throws RejectedExecutionException if shutdown
308		*/
309		public void testSchedule1_RejectedExecutionException() {
310	<	CustomExecutor se = new CustomExecutor(1);
311	<	try {
312	<	se.shutdown();
313	<	se.schedule(new NoOpRunnable(),
314	<	MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
315	<	shouldThrow();
316	<	} catch (RejectedExecutionException success) {
317	<	} catch (SecurityException ok) {
310	>	final CustomExecutor p = new CustomExecutor(1);
311	>	try (PoolCleaner cleaner = cleaner(p)) {
312	>	try {
313	>	p.shutdown();
314	>	p.schedule(new NoOpRunnable(),
315	>	MEDIUM_DELAY_MS, MILLISECONDS);
316	>	shouldThrow();
317	>	} catch (RejectedExecutionException success) {
318	>	} catch (SecurityException ok) {}
319		}
274	–
275	–	joinPool(se);
276	–
320		}
321
322		/**
323		* schedule throws RejectedExecutionException if shutdown
324		*/
325		public void testSchedule2_RejectedExecutionException() {
326	<	CustomExecutor se = new CustomExecutor(1);
327	<	try {
328	<	se.shutdown();
329	<	se.schedule(new NoOpCallable(),
330	<	MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
331	<	shouldThrow();
332	<	} catch (RejectedExecutionException success) {
333	<	} catch (SecurityException ok) {
326	>	final CustomExecutor p = new CustomExecutor(1);
327	>	try (PoolCleaner cleaner = cleaner(p)) {
328	>	try {
329	>	p.shutdown();
330	>	p.schedule(new NoOpCallable(),
331	>	MEDIUM_DELAY_MS, MILLISECONDS);
332	>	shouldThrow();
333	>	} catch (RejectedExecutionException success) {
334	>	} catch (SecurityException ok) {}
335		}
292	–	joinPool(se);
336		}
337
338		/**
339		* schedule callable throws RejectedExecutionException if shutdown
340		*/
341	<	public void testSchedule3_RejectedExecutionException() {
342	<	CustomExecutor se = new CustomExecutor(1);
343	<	try {
344	<	se.shutdown();
345	<	se.schedule(new NoOpCallable(),
346	<	MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
347	<	shouldThrow();
348	<	} catch (RejectedExecutionException success) {
349	<	} catch (SecurityException ok) {
341	>	public void testSchedule3_RejectedExecutionException() {
342	>	final CustomExecutor p = new CustomExecutor(1);
343	>	try (PoolCleaner cleaner = cleaner(p)) {
344	>	try {
345	>	p.shutdown();
346	>	p.schedule(new NoOpCallable(),
347	>	MEDIUM_DELAY_MS, MILLISECONDS);
348	>	shouldThrow();
349	>	} catch (RejectedExecutionException success) {
350	>	} catch (SecurityException ok) {}
351		}
308	–	joinPool(se);
352		}
353
354		/**
355	<	*  scheduleAtFixedRate throws RejectedExecutionException if shutdown
355	>	* scheduleAtFixedRate throws RejectedExecutionException if shutdown
356		*/
357		public void testScheduleAtFixedRate1_RejectedExecutionException() {
358	<	CustomExecutor se = new CustomExecutor(1);
359	<	try {
360	<	se.shutdown();
361	<	se.scheduleAtFixedRate(new NoOpRunnable(),
362	<	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
363	<	shouldThrow();
364	<	} catch (RejectedExecutionException success) {
365	<	} catch (SecurityException ok) {
358	>	final CustomExecutor p = new CustomExecutor(1);
359	>	try (PoolCleaner cleaner = cleaner(p)) {
360	>	try {
361	>	p.shutdown();
362	>	p.scheduleAtFixedRate(new NoOpRunnable(),
363	>	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS);
364	>	shouldThrow();
365	>	} catch (RejectedExecutionException success) {
366	>	} catch (SecurityException ok) {}
367		}
324	–	joinPool(se);
368		}
369
370		/**
371		* scheduleWithFixedDelay throws RejectedExecutionException if shutdown
372		*/
373		public void testScheduleWithFixedDelay1_RejectedExecutionException() {
374	<	CustomExecutor se = new CustomExecutor(1);
375	<	try {
376	<	se.shutdown();
377	<	se.scheduleWithFixedDelay(new NoOpRunnable(),
378	<	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
379	<	shouldThrow();
380	<	} catch (RejectedExecutionException success) {
381	<	} catch (SecurityException ok) {
374	>	final CustomExecutor p = new CustomExecutor(1);
375	>	try (PoolCleaner cleaner = cleaner(p)) {
376	>	try {
377	>	p.shutdown();
378	>	p.scheduleWithFixedDelay(new NoOpRunnable(),
379	>	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS);
380	>	shouldThrow();
381	>	} catch (RejectedExecutionException success) {
382	>	} catch (SecurityException ok) {}
383		}
340	–	joinPool(se);
384		}
385
386		/**
387	<	*  getActiveCount increases but doesn't overestimate, when a
388	<	*  thread becomes active
389	<	*/
390	<	public void testGetActiveCount() {
391	<	CustomExecutor p2 = new CustomExecutor(2);
392	<	assertEquals(0, p2.getActiveCount());
393	<	p2.execute(new SmallRunnable());
394	<	try {
395	<	Thread.sleep(SHORT_DELAY_MS);
396	<	} catch (Exception e) {
397	<	unexpectedException();
387	>	* getActiveCount increases but doesn't overestimate, when a
388	>	* thread becomes active
389	>	*/
390	>	public void testGetActiveCount() throws InterruptedException {
391	>	final CountDownLatch done = new CountDownLatch(1);
392	>	final ThreadPoolExecutor p = new CustomExecutor(2);
393	>	try (PoolCleaner cleaner = cleaner(p, done)) {
394	>	final CountDownLatch threadStarted = new CountDownLatch(1);
395	>	assertEquals(0, p.getActiveCount());
396	>	p.execute(new CheckedRunnable() {
397	>	public void realRun() throws InterruptedException {
398	>	threadStarted.countDown();
399	>	assertEquals(1, p.getActiveCount());
400	>	await(done);
401	>	}});
402	>	await(threadStarted);
403	>	assertEquals(1, p.getActiveCount());
404		}
356	–	assertEquals(1, p2.getActiveCount());
357	–	joinPool(p2);
405		}
406
407		/**
408	<	*    getCompletedTaskCount increases, but doesn't overestimate,
409	<	*   when tasks complete
410	<	*/
411	<	public void testGetCompletedTaskCount() {
412	<	CustomExecutor p2 = new CustomExecutor(2);
413	<	assertEquals(0, p2.getCompletedTaskCount());
414	<	p2.execute(new SmallRunnable());
415	<	try {
416	<	Thread.sleep(MEDIUM_DELAY_MS);
417	<	} catch (Exception e) {
418	<	unexpectedException();
408	>	* getCompletedTaskCount increases, but doesn't overestimate,
409	>	* when tasks complete
410	>	*/
411	>	public void testGetCompletedTaskCount() throws InterruptedException {
412	>	final ThreadPoolExecutor p = new CustomExecutor(2);
413	>	try (PoolCleaner cleaner = cleaner(p)) {
414	>	final CountDownLatch threadStarted = new CountDownLatch(1);
415	>	final CountDownLatch threadProceed = new CountDownLatch(1);
416	>	final CountDownLatch threadDone = new CountDownLatch(1);
417	>	assertEquals(0, p.getCompletedTaskCount());
418	>	p.execute(new CheckedRunnable() {
419	>	public void realRun() throws InterruptedException {
420	>	threadStarted.countDown();
421	>	assertEquals(0, p.getCompletedTaskCount());
422	>	threadProceed.await();
423	>	threadDone.countDown();
424	>	}});
425	>	await(threadStarted);
426	>	assertEquals(0, p.getCompletedTaskCount());
427	>	threadProceed.countDown();
428	>	threadDone.await();
429	>	long startTime = System.nanoTime();
430	>	while (p.getCompletedTaskCount() != 1) {
431	>	if (millisElapsedSince(startTime) > LONG_DELAY_MS)
432	>	fail("timed out");
433	>	Thread.yield();
434	>	}
435		}
373	–	assertEquals(1, p2.getCompletedTaskCount());
374	–	joinPool(p2);
436		}
437
438		/**
439	<	*  getCorePoolSize returns size given in constructor if not otherwise set
439	>	* getCorePoolSize returns size given in constructor if not otherwise set
440		*/
441		public void testGetCorePoolSize() {
442	<	CustomExecutor p1 = new CustomExecutor(1);
443	<	assertEquals(1, p1.getCorePoolSize());
444	<	joinPool(p1);
445	<	}
446	<
447	<	/**
448	<	*    getLargestPoolSize increases, but doesn't overestimate, when
449	<	*   multiple threads active
450	<	*/
451	<	public void testGetLargestPoolSize() {
452	<	CustomExecutor p2 = new CustomExecutor(2);
453	<	assertEquals(0, p2.getLargestPoolSize());
454	<	p2.execute(new SmallRunnable());
455	<	p2.execute(new SmallRunnable());
456	<	try {
457	<	Thread.sleep(SHORT_DELAY_MS);
458	<	} catch (Exception e) {
459	<	unexpectedException();
460	<	}
461	<	assertEquals(2, p2.getLargestPoolSize());
462	<	joinPool(p2);
463	<	}
464	<
465	<	/**
466	<	*   getPoolSize increases, but doesn't overestimate, when threads
467	<	*   become active
468	<	*/
469	<	public void testGetPoolSize() {
470	<	CustomExecutor p1 = new CustomExecutor(1);
471	<	assertEquals(0, p1.getPoolSize());
472	<	p1.execute(new SmallRunnable());
473	<	assertEquals(1, p1.getPoolSize());
474	<	joinPool(p1);
475	<	}
476	<
477	<	/**
478	<	*    getTaskCount increases, but doesn't overestimate, when tasks
479	<	*    submitted
480	<	*/
481	<	public void testGetTaskCount() {
482	<	CustomExecutor p1 = new CustomExecutor(1);
483	<	assertEquals(0, p1.getTaskCount());
484	<	for (int i = 0; i < 5; i++)
485	<	p1.execute(new SmallRunnable());
486	<	try {
487	<	Thread.sleep(SHORT_DELAY_MS);
488	<	} catch (Exception e) {
489	<	unexpectedException();
442	>	final CustomExecutor p = new CustomExecutor(1);
443	>	try (PoolCleaner cleaner = cleaner(p)) {
444	>	assertEquals(1, p.getCorePoolSize());
445	>	}
446	>	}
447	>
448	>	/**
449	>	* getLargestPoolSize increases, but doesn't overestimate, when
450	>	* multiple threads active
451	>	*/
452	>	public void testGetLargestPoolSize() throws InterruptedException {
453	>	final int THREADS = 3;
454	>	final CountDownLatch done = new CountDownLatch(1);
455	>	final ThreadPoolExecutor p = new CustomExecutor(THREADS);
456	>	try (PoolCleaner cleaner = cleaner(p, done)) {
457	>	final CountDownLatch threadsStarted = new CountDownLatch(THREADS);
458	>	assertEquals(0, p.getLargestPoolSize());
459	>	for (int i = 0; i < THREADS; i++)
460	>	p.execute(new CheckedRunnable() {
461	>	public void realRun() throws InterruptedException {
462	>	threadsStarted.countDown();
463	>	await(done);
464	>	assertEquals(THREADS, p.getLargestPoolSize());
465	>	}});
466	>	await(threadsStarted);
467	>	assertEquals(THREADS, p.getLargestPoolSize());
468	>	}
469	>	assertEquals(THREADS, p.getLargestPoolSize());
470	>	}
471	>
472	>	/**
473	>	* getPoolSize increases, but doesn't overestimate, when threads
474	>	* become active
475	>	*/
476	>	public void testGetPoolSize() throws InterruptedException {
477	>	final CountDownLatch done = new CountDownLatch(1);
478	>	final ThreadPoolExecutor p = new CustomExecutor(1);
479	>	try (PoolCleaner cleaner = cleaner(p, done)) {
480	>	final CountDownLatch threadStarted = new CountDownLatch(1);
481	>	assertEquals(0, p.getPoolSize());
482	>	p.execute(new CheckedRunnable() {
483	>	public void realRun() throws InterruptedException {
484	>	threadStarted.countDown();
485	>	assertEquals(1, p.getPoolSize());
486	>	await(done);
487	>	}});
488	>	await(threadStarted);
489	>	assertEquals(1, p.getPoolSize());
490	>	}
491	>	}
492	>
493	>	/**
494	>	* getTaskCount increases, but doesn't overestimate, when tasks
495	>	* submitted
496	>	*/
497	>	public void testGetTaskCount() throws InterruptedException {
498	>	final int TASKS = 3;
499	>	final CountDownLatch done = new CountDownLatch(1);
500	>	final ThreadPoolExecutor p = new CustomExecutor(1);
501	>	try (PoolCleaner cleaner = cleaner(p, done)) {
502	>	final CountDownLatch threadStarted = new CountDownLatch(1);
503	>	assertEquals(0, p.getTaskCount());
504	>	assertEquals(0, p.getCompletedTaskCount());
505	>	p.execute(new CheckedRunnable() {
506	>	public void realRun() throws InterruptedException {
507	>	threadStarted.countDown();
508	>	await(done);
509	>	}});
510	>	await(threadStarted);
511	>	assertEquals(1, p.getTaskCount());
512	>	assertEquals(0, p.getCompletedTaskCount());
513	>	for (int i = 0; i < TASKS; i++) {
514	>	assertEquals(1 + i, p.getTaskCount());
515	>	p.execute(new CheckedRunnable() {
516	>	public void realRun() throws InterruptedException {
517	>	threadStarted.countDown();
518	>	assertEquals(1 + TASKS, p.getTaskCount());
519	>	await(done);
520	>	}});
521	>	}
522	>	assertEquals(1 + TASKS, p.getTaskCount());
523	>	assertEquals(0, p.getCompletedTaskCount());
524		}
525	<	assertEquals(5, p1.getTaskCount());
526	<	joinPool(p1);
525	>	assertEquals(1 + TASKS, p.getTaskCount());
526	>	assertEquals(1 + TASKS, p.getCompletedTaskCount());
527		}
528
529		/**
530		* getThreadFactory returns factory in constructor if not set
531		*/
532		public void testGetThreadFactory() {
533	<	ThreadFactory tf = new SimpleThreadFactory();
534	<	CustomExecutor p = new CustomExecutor(1, tf);
535	<	assertSame(tf, p.getThreadFactory());
536	<	joinPool(p);
533	>	final ThreadFactory threadFactory = new SimpleThreadFactory();
534	>	final CustomExecutor p = new CustomExecutor(1, threadFactory);
535	>	try (PoolCleaner cleaner = cleaner(p)) {
536	>	assertSame(threadFactory, p.getThreadFactory());
537	>	}
538		}
539
540		/**
541		* setThreadFactory sets the thread factory returned by getThreadFactory
542		*/
543		public void testSetThreadFactory() {
544	<	ThreadFactory tf = new SimpleThreadFactory();
545	<	CustomExecutor p = new CustomExecutor(1);
546	<	p.setThreadFactory(tf);
547	<	assertSame(tf, p.getThreadFactory());
548	<	joinPool(p);
544	>	final ThreadFactory threadFactory = new SimpleThreadFactory();
545	>	final CustomExecutor p = new CustomExecutor(1);
546	>	try (PoolCleaner cleaner = cleaner(p)) {
547	>	p.setThreadFactory(threadFactory);
548	>	assertSame(threadFactory, p.getThreadFactory());
549	>	}
550		}
551
552		/**
553		* setThreadFactory(null) throws NPE
554		*/
555		public void testSetThreadFactoryNull() {
556	<	CustomExecutor p = new CustomExecutor(1);
557	<	try {
558	<	p.setThreadFactory(null);
559	<	shouldThrow();
560	<	} catch (NullPointerException success) {
561	<	} finally {
465	<	joinPool(p);
556	>	final CustomExecutor p = new CustomExecutor(1);
557	>	try (PoolCleaner cleaner = cleaner(p)) {
558	>	try {
559	>	p.setThreadFactory(null);
560	>	shouldThrow();
561	>	} catch (NullPointerException success) {}
562		}
563		}
564
565		/**
566	<	*   is isShutDown is false before shutdown, true after
566	>	* isShutdown is false before shutdown, true after
567		*/
568		public void testIsShutdown() {
569	<
570	<	CustomExecutor p1 = new CustomExecutor(1);
571	<	try {
572	<	assertFalse(p1.isShutdown());
573	<	}
478	<	finally {
479	<	try { p1.shutdown(); } catch (SecurityException ok) { return; }
569	>	final CustomExecutor p = new CustomExecutor(1);
570	>	try (PoolCleaner cleaner = cleaner(p)) {
571	>	assertFalse(p.isShutdown());
572	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
573	>	assertTrue(p.isShutdown());
574		}
481	–	assertTrue(p1.isShutdown());
575		}
576
484	–
577		/**
578	<	*   isTerminated is false before termination, true after
579	<	*/
580	<	public void testIsTerminated() {
581	<	CustomExecutor p1 = new CustomExecutor(1);
582	<	try {
583	<	p1.execute(new SmallRunnable());
584	<	} finally {
585	<	try { p1.shutdown(); } catch (SecurityException ok) { return; }
586	<	}
587	<	try {
588	<	assertTrue(p1.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
589	<	assertTrue(p1.isTerminated());
590	<	} catch (Exception e) {
591	<	unexpectedException();
578	>	* isTerminated is false before termination, true after
579	>	*/
580	>	public void testIsTerminated() throws InterruptedException {
581	>	final CountDownLatch done = new CountDownLatch(1);
582	>	final ThreadPoolExecutor p = new CustomExecutor(1);
583	>	try (PoolCleaner cleaner = cleaner(p)) {
584	>	final CountDownLatch threadStarted = new CountDownLatch(1);
585	>	p.execute(new CheckedRunnable() {
586	>	public void realRun() throws InterruptedException {
587	>	assertFalse(p.isTerminated());
588	>	threadStarted.countDown();
589	>	await(done);
590	>	}});
591	>	await(threadStarted);
592	>	assertFalse(p.isTerminated());
593	>	assertFalse(p.isTerminating());
594	>	done.countDown();
595	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
596	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
597	>	assertTrue(p.isTerminated());
598		}
599		}
600
601		/**
602	<	*  isTerminating is not true when running or when terminated
603	<	*/
604	<	public void testIsTerminating() {
605	<	CustomExecutor p1 = new CustomExecutor(1);
606	<	assertFalse(p1.isTerminating());
607	<	try {
608	<	p1.execute(new SmallRunnable());
609	<	assertFalse(p1.isTerminating());
610	<	} finally {
611	<	try { p1.shutdown(); } catch (SecurityException ok) { return; }
612	<	}
613	<	try {
614	<	assertTrue(p1.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
615	<	assertTrue(p1.isTerminated());
616	<	assertFalse(p1.isTerminating());
617	<	} catch (Exception e) {
618	<	unexpectedException();
602	>	* isTerminating is not true when running or when terminated
603	>	*/
604	>	public void testIsTerminating() throws InterruptedException {
605	>	final CountDownLatch done = new CountDownLatch(1);
606	>	final ThreadPoolExecutor p = new CustomExecutor(1);
607	>	try (PoolCleaner cleaner = cleaner(p)) {
608	>	final CountDownLatch threadStarted = new CountDownLatch(1);
609	>	assertFalse(p.isTerminating());
610	>	p.execute(new CheckedRunnable() {
611	>	public void realRun() throws InterruptedException {
612	>	assertFalse(p.isTerminating());
613	>	threadStarted.countDown();
614	>	await(done);
615	>	}});
616	>	await(threadStarted);
617	>	assertFalse(p.isTerminating());
618	>	done.countDown();
619	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
620	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
621	>	assertTrue(p.isTerminated());
622	>	assertFalse(p.isTerminating());
623		}
624		}
625
626		/**
627		* getQueue returns the work queue, which contains queued tasks
628		*/
629	<	public void testGetQueue() {
630	<	CustomExecutor p1 = new CustomExecutor(1);
631	<	ScheduledFuture[] tasks = new ScheduledFuture[5];
632	<	for (int i = 0; i < 5; i++) {
633	<	tasks[i] = p1.schedule(new SmallPossiblyInterruptedRunnable(), 1, TimeUnit.MILLISECONDS);
634	<	}
635	<	try {
636	<	Thread.sleep(SHORT_DELAY_MS);
637	<	BlockingQueue<Runnable> q = p1.getQueue();
638	<	assertTrue(q.contains(tasks[4]));
629	>	public void testGetQueue() throws InterruptedException {
630	>	final CountDownLatch done = new CountDownLatch(1);
631	>	final ScheduledThreadPoolExecutor p = new CustomExecutor(1);
632	>	try (PoolCleaner cleaner = cleaner(p, done)) {
633	>	final CountDownLatch threadStarted = new CountDownLatch(1);
634	>	ScheduledFuture[] tasks = new ScheduledFuture[5];
635	>	for (int i = 0; i < tasks.length; i++) {
636	>	Runnable r = new CheckedRunnable() {
637	>	public void realRun() throws InterruptedException {
638	>	threadStarted.countDown();
639	>	await(done);
640	>	}};
641	>	tasks[i] = p.schedule(r, 1, MILLISECONDS);
642	>	}
643	>	await(threadStarted);
644	>	BlockingQueue<Runnable> q = p.getQueue();
645	>	assertTrue(q.contains(tasks[tasks.length - 1]));
646		assertFalse(q.contains(tasks[0]));
538	–	} catch (Exception e) {
539	–	unexpectedException();
540	–	} finally {
541	–	joinPool(p1);
647		}
648		}
649
650		/**
651		* remove(task) removes queued task, and fails to remove active task
652		*/
653	<	public void testRemove() {
654	<	CustomExecutor p1 = new CustomExecutor(1);
655	<	ScheduledFuture[] tasks = new ScheduledFuture[5];
656	<	for (int i = 0; i < 5; i++) {
657	<	tasks[i] = p1.schedule(new SmallPossiblyInterruptedRunnable(), 1, TimeUnit.MILLISECONDS);
658	<	}
659	<	try {
660	<	Thread.sleep(SHORT_DELAY_MS);
661	<	BlockingQueue<Runnable> q = p1.getQueue();
662	<	assertFalse(p1.remove((Runnable)tasks[0]));
653	>	public void testRemove() throws InterruptedException {
654	>	final CountDownLatch done = new CountDownLatch(1);
655	>	final ScheduledThreadPoolExecutor p = new CustomExecutor(1);
656	>	try (PoolCleaner cleaner = cleaner(p, done)) {
657	>	ScheduledFuture[] tasks = new ScheduledFuture[5];
658	>	final CountDownLatch threadStarted = new CountDownLatch(1);
659	>	for (int i = 0; i < tasks.length; i++) {
660	>	Runnable r = new CheckedRunnable() {
661	>	public void realRun() throws InterruptedException {
662	>	threadStarted.countDown();
663	>	await(done);
664	>	}};
665	>	tasks[i] = p.schedule(r, 1, MILLISECONDS);
666	>	}
667	>	await(threadStarted);
668	>	BlockingQueue<Runnable> q = p.getQueue();
669	>	assertFalse(p.remove((Runnable)tasks[0]));
670		assertTrue(q.contains((Runnable)tasks[4]));
671		assertTrue(q.contains((Runnable)tasks[3]));
672	<	assertTrue(p1.remove((Runnable)tasks[4]));
673	<	assertFalse(p1.remove((Runnable)tasks[4]));
672	>	assertTrue(p.remove((Runnable)tasks[4]));
673	>	assertFalse(p.remove((Runnable)tasks[4]));
674		assertFalse(q.contains((Runnable)tasks[4]));
675		assertTrue(q.contains((Runnable)tasks[3]));
676	<	assertTrue(p1.remove((Runnable)tasks[3]));
676	>	assertTrue(p.remove((Runnable)tasks[3]));
677		assertFalse(q.contains((Runnable)tasks[3]));
566	–	} catch (Exception e) {
567	–	unexpectedException();
568	–	} finally {
569	–	joinPool(p1);
678		}
679		}
680
681		/**
682	<	*  purge removes cancelled tasks from the queue
682	>	* purge removes cancelled tasks from the queue
683		*/
684	<	public void testPurge() {
685	<	CustomExecutor p1 = new CustomExecutor(1);
686	<	ScheduledFuture[] tasks = new ScheduledFuture[5];
687	<	for (int i = 0; i < 5; i++) {
688	<	tasks[i] = p1.schedule(new SmallPossiblyInterruptedRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
689	<	}
690	<	try {
691	<	int max = 5;
684	>	public void testPurge() throws InterruptedException {
685	>	final ScheduledFuture[] tasks = new ScheduledFuture[5];
686	>	final Runnable releaser = new Runnable() { public void run() {
687	>	for (ScheduledFuture task : tasks)
688	>	if (task != null) task.cancel(true); }};
689	>	final CustomExecutor p = new CustomExecutor(1);
690	>	try (PoolCleaner cleaner = cleaner(p, releaser)) {
691	>	for (int i = 0; i < tasks.length; i++)
692	>	tasks[i] = p.schedule(new SmallPossiblyInterruptedRunnable(),
693	>	LONG_DELAY_MS, MILLISECONDS);
694	>	int max = tasks.length;
695		if (tasks[4].cancel(true)) --max;
696		if (tasks[3].cancel(true)) --max;
697		// There must eventually be an interference-free point at
698		// which purge will not fail. (At worst, when queue is empty.)
699	<	int k;
700	<	for (k = 0; k < SMALL_DELAY_MS; ++k) {
701	<	p1.purge();
702	<	long count = p1.getTaskCount();
703	<	if (count >= 0 && count <= max)
704	<	break;
705	<	Thread.sleep(1);
706	<	}
596	<	assertTrue(k < SMALL_DELAY_MS);
597	<	} catch (Exception e) {
598	<	unexpectedException();
599	<	} finally {
600	<	joinPool(p1);
699	>	long startTime = System.nanoTime();
700	>	do {
701	>	p.purge();
702	>	long count = p.getTaskCount();
703	>	if (count == max)
704	>	return;
705	>	} while (millisElapsedSince(startTime) < LONG_DELAY_MS);
706	>	fail("Purge failed to remove cancelled tasks");
707		}
708		}
709
710		/**
711	<	*  shutDownNow returns a list containing tasks that were not run
712	<	*/
713	<	public void testShutDownNow() {
714	<	CustomExecutor p1 = new CustomExecutor(1);
715	<	for (int i = 0; i < 5; i++)
716	<	p1.schedule(new SmallPossiblyInterruptedRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
717	<	List l;
711	>	* shutdownNow returns a list containing tasks that were not run,
712	>	* and those tasks are drained from the queue
713	>	*/
714	>	public void testShutdownNow() throws InterruptedException {
715	>	final int poolSize = 2;
716	>	final int count = 5;
717	>	final AtomicInteger ran = new AtomicInteger(0);
718	>	final CustomExecutor p = new CustomExecutor(poolSize);
719	>	final CountDownLatch threadsStarted = new CountDownLatch(poolSize);
720	>	Runnable waiter = new CheckedRunnable() { public void realRun() {
721	>	threadsStarted.countDown();
722	>	try {
723	>	MILLISECONDS.sleep(2 * LONG_DELAY_MS);
724	>	} catch (InterruptedException success) {}
725	>	ran.getAndIncrement();
726	>	}};
727	>	for (int i = 0; i < count; i++)
728	>	p.execute(waiter);
729	>	await(threadsStarted);
730	>	assertEquals(poolSize, p.getActiveCount());
731	>	assertEquals(0, p.getCompletedTaskCount());
732	>	final List<Runnable> queuedTasks;
733		try {
734	<	l = p1.shutdownNow();
734	>	queuedTasks = p.shutdownNow();
735		} catch (SecurityException ok) {
736	<	return;
736	>	return; // Allowed in case test doesn't have privs
737		}
738	<	assertTrue(p1.isShutdown());
739	<	assertTrue(l.size() > 0 && l.size() <= 5);
740	<	joinPool(p1);
738	>	assertTrue(p.isShutdown());
739	>	assertTrue(p.getQueue().isEmpty());
740	>	assertEquals(count - poolSize, queuedTasks.size());
741	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
742	>	assertTrue(p.isTerminated());
743	>	assertEquals(poolSize, ran.get());
744	>	assertEquals(poolSize, p.getCompletedTaskCount());
745		}
746
747		/**
748	<	* In default setting, shutdown cancels periodic but not delayed
749	<	* tasks at shutdown
750	<	*/
751	<	public void testShutDown1() {
748	>	* shutdownNow returns a list containing tasks that were not run,
749	>	* and those tasks are drained from the queue
750	>	*/
751	>	public void testShutdownNow_delayedTasks() throws InterruptedException {
752	>	final CustomExecutor p = new CustomExecutor(1);
753	>	List<ScheduledFuture> tasks = new ArrayList<>();
754	>	for (int i = 0; i < 3; i++) {
755	>	Runnable r = new NoOpRunnable();
756	>	tasks.add(p.schedule(r, 9, SECONDS));
757	>	tasks.add(p.scheduleAtFixedRate(r, 9, 9, SECONDS));
758	>	tasks.add(p.scheduleWithFixedDelay(r, 9, 9, SECONDS));
759	>	}
760	>	if (testImplementationDetails)
761	>	assertEquals(new HashSet(tasks), new HashSet(p.getQueue()));
762	>	final List<Runnable> queuedTasks;
763		try {
764	<	CustomExecutor p1 = new CustomExecutor(1);
765	<	assertTrue(p1.getExecuteExistingDelayedTasksAfterShutdownPolicy());
766	<	assertFalse(p1.getContinueExistingPeriodicTasksAfterShutdownPolicy());
631	<
632	<	ScheduledFuture[] tasks = new ScheduledFuture[5];
633	<	for (int i = 0; i < 5; i++)
634	<	tasks[i] = p1.schedule(new NoOpRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
635	<	try { p1.shutdown(); } catch (SecurityException ok) { return; }
636	<	BlockingQueue q = p1.getQueue();
637	<	for (Iterator it = q.iterator(); it.hasNext();) {
638	<	ScheduledFuture t = (ScheduledFuture)it.next();
639	<	assertFalse(t.isCancelled());
640	<	}
641	<	assertTrue(p1.isShutdown());
642	<	Thread.sleep(SMALL_DELAY_MS);
643	<	for (int i = 0; i < 5; ++i) {
644	<	assertTrue(tasks[i].isDone());
645	<	assertFalse(tasks[i].isCancelled());
646	<	}
647	<
648	<	}
649	<	catch (Exception ex) {
650	<	unexpectedException();
651	<	}
652	<	}
653	<
654	<
655	<	/**
656	<	* If setExecuteExistingDelayedTasksAfterShutdownPolicy is false,
657	<	* delayed tasks are cancelled at shutdown
658	<	*/
659	<	public void testShutDown2() {
660	<	try {
661	<	CustomExecutor p1 = new CustomExecutor(1);
662	<	p1.setExecuteExistingDelayedTasksAfterShutdownPolicy(false);
663	<	ScheduledFuture[] tasks = new ScheduledFuture[5];
664	<	for (int i = 0; i < 5; i++)
665	<	tasks[i] = p1.schedule(new NoOpRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
666	<	try { p1.shutdown(); } catch (SecurityException ok) { return; }
667	<	assertTrue(p1.isShutdown());
668	<	BlockingQueue q = p1.getQueue();
669	<	assertTrue(q.isEmpty());
670	<	Thread.sleep(SMALL_DELAY_MS);
671	<	assertTrue(p1.isTerminated());
672	<	}
673	<	catch (Exception ex) {
674	<	unexpectedException();
675	<	}
676	<	}
677	<
678	<
679	<	/**
680	<	* If setContinueExistingPeriodicTasksAfterShutdownPolicy is set false,
681	<	* periodic tasks are not cancelled at shutdown
682	<	*/
683	<	public void testShutDown3() {
684	<	try {
685	<	CustomExecutor p1 = new CustomExecutor(1);
686	<	p1.setContinueExistingPeriodicTasksAfterShutdownPolicy(false);
687	<	ScheduledFuture task =
688	<	p1.scheduleAtFixedRate(new NoOpRunnable(), 5, 5, TimeUnit.MILLISECONDS);
689	<	try { p1.shutdown(); } catch (SecurityException ok) { return; }
690	<	assertTrue(p1.isShutdown());
691	<	BlockingQueue q = p1.getQueue();
692	<	assertTrue(q.isEmpty());
693	<	Thread.sleep(SHORT_DELAY_MS);
694	<	assertTrue(p1.isTerminated());
764	>	queuedTasks = p.shutdownNow();
765	>	} catch (SecurityException ok) {
766	>	return; // Allowed in case test doesn't have privs
767		}
768	<	catch (Exception ex) {
769	<	unexpectedException();
768	>	assertTrue(p.isShutdown());
769	>	assertTrue(p.getQueue().isEmpty());
770	>	if (testImplementationDetails)
771	>	assertEquals(new HashSet(tasks), new HashSet(queuedTasks));
772	>	assertEquals(tasks.size(), queuedTasks.size());
773	>	for (ScheduledFuture task : tasks) {
774	>	assertFalse(((CustomTask)task).ran);
775	>	assertFalse(task.isDone());
776	>	assertFalse(task.isCancelled());
777		}
778	+	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
779	+	assertTrue(p.isTerminated());
780		}
781
782		/**
783	<	* if setContinueExistingPeriodicTasksAfterShutdownPolicy is true,
784	<	* periodic tasks are cancelled at shutdown
785	<	*/
786	<	public void testShutDown4() {
787	<	CustomExecutor p1 = new CustomExecutor(1);
788	<	try {
789	<	p1.setContinueExistingPeriodicTasksAfterShutdownPolicy(true);
790	<	ScheduledFuture task =
791	<	p1.scheduleAtFixedRate(new NoOpRunnable(), 1, 1, TimeUnit.MILLISECONDS);
792	<	assertFalse(task.isCancelled());
793	<	try { p1.shutdown(); } catch (SecurityException ok) { return; }
794	<	assertFalse(task.isCancelled());
795	<	assertFalse(p1.isTerminated());
796	<	assertTrue(p1.isShutdown());
797	<	Thread.sleep(SHORT_DELAY_MS);
798	<	assertFalse(task.isCancelled());
799	<	assertTrue(task.cancel(true));
800	<	assertTrue(task.isDone());
801	<	Thread.sleep(SHORT_DELAY_MS);
802	<	assertTrue(p1.isTerminated());
803	<	}
804	<	catch (Exception ex) {
805	<	unexpectedException();
783	>	* By default, periodic tasks are cancelled at shutdown.
784	>	* By default, delayed tasks keep running after shutdown.
785	>	* Check that changing the default values work:
786	>	* - setExecuteExistingDelayedTasksAfterShutdownPolicy
787	>	* - setContinueExistingPeriodicTasksAfterShutdownPolicy
788	>	*/
789	>	public void testShutdown_cancellation() throws Exception {
790	>	Boolean[] allBooleans = { null, Boolean.FALSE, Boolean.TRUE };
791	>	for (Boolean policy : allBooleans)
792	>	{
793	>	final int poolSize = 2;
794	>	final CustomExecutor p = new CustomExecutor(poolSize);
795	>	final boolean effectiveDelayedPolicy = (policy != Boolean.FALSE);
796	>	final boolean effectivePeriodicPolicy = (policy == Boolean.TRUE);
797	>	final boolean effectiveRemovePolicy = (policy == Boolean.TRUE);
798	>	if (policy != null) {
799	>	p.setExecuteExistingDelayedTasksAfterShutdownPolicy(policy);
800	>	p.setContinueExistingPeriodicTasksAfterShutdownPolicy(policy);
801	>	p.setRemoveOnCancelPolicy(policy);
802	>	}
803	>	assertEquals(effectiveDelayedPolicy,
804	>	p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
805	>	assertEquals(effectivePeriodicPolicy,
806	>	p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
807	>	assertEquals(effectiveRemovePolicy,
808	>	p.getRemoveOnCancelPolicy());
809	>	// Strategy: Wedge the pool with poolSize "blocker" threads
810	>	final AtomicInteger ran = new AtomicInteger(0);
811	>	final CountDownLatch poolBlocked = new CountDownLatch(poolSize);
812	>	final CountDownLatch unblock = new CountDownLatch(1);
813	>	final CountDownLatch periodicLatch1 = new CountDownLatch(2);
814	>	final CountDownLatch periodicLatch2 = new CountDownLatch(2);
815	>	Runnable task = new CheckedRunnable() { public void realRun()
816	>	throws InterruptedException {
817	>	poolBlocked.countDown();
818	>	assertTrue(unblock.await(LONG_DELAY_MS, MILLISECONDS));
819	>	ran.getAndIncrement();
820	>	}};
821	>	List<Future<?>> blockers = new ArrayList<>();
822	>	List<Future<?>> periodics = new ArrayList<>();
823	>	List<Future<?>> delayeds = new ArrayList<>();
824	>	for (int i = 0; i < poolSize; i++)
825	>	blockers.add(p.submit(task));
826	>	assertTrue(poolBlocked.await(LONG_DELAY_MS, MILLISECONDS));
827	>
828	>	periodics.add(p.scheduleAtFixedRate(countDowner(periodicLatch1),
829	>	1, 1, MILLISECONDS));
830	>	periodics.add(p.scheduleWithFixedDelay(countDowner(periodicLatch2),
831	>	1, 1, MILLISECONDS));
832	>	delayeds.add(p.schedule(task, 1, MILLISECONDS));
833	>
834	>	assertTrue(p.getQueue().containsAll(periodics));
835	>	assertTrue(p.getQueue().containsAll(delayeds));
836	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
837	>	assertTrue(p.isShutdown());
838	>	assertFalse(p.isTerminated());
839	>	for (Future<?> periodic : periodics) {
840	>	assertTrue(effectivePeriodicPolicy ^ periodic.isCancelled());
841	>	assertTrue(effectivePeriodicPolicy ^ periodic.isDone());
842	>	}
843	>	for (Future<?> delayed : delayeds) {
844	>	assertTrue(effectiveDelayedPolicy ^ delayed.isCancelled());
845	>	assertTrue(effectiveDelayedPolicy ^ delayed.isDone());
846	>	}
847	>	if (testImplementationDetails) {
848	>	assertEquals(effectivePeriodicPolicy,
849	>	p.getQueue().containsAll(periodics));
850	>	assertEquals(effectiveDelayedPolicy,
851	>	p.getQueue().containsAll(delayeds));
852	>	}
853	>	// Release all pool threads
854	>	unblock.countDown();
855	>
856	>	for (Future<?> delayed : delayeds) {
857	>	if (effectiveDelayedPolicy) {
858	>	assertNull(delayed.get());
859	>	}
860		}
861	<	finally {
862	<	joinPool(p1);
861	>	if (effectivePeriodicPolicy) {
862	>	assertTrue(periodicLatch1.await(LONG_DELAY_MS, MILLISECONDS));
863	>	assertTrue(periodicLatch2.await(LONG_DELAY_MS, MILLISECONDS));
864	>	for (Future<?> periodic : periodics) {
865	>	assertTrue(periodic.cancel(false));
866	>	assertTrue(periodic.isCancelled());
867	>	assertTrue(periodic.isDone());
868	>	}
869		}
870	<	}
870	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
871	>	assertTrue(p.isTerminated());
872	>	assertEquals(2 + (effectiveDelayedPolicy ? 1 : 0), ran.get());
873	>	}}
874
875		/**
876		* completed submit of callable returns result
877		*/
878	<	public void testSubmitCallable() {
879	<	ExecutorService e = new CustomExecutor(2);
880	<	try {
878	>	public void testSubmitCallable() throws Exception {
879	>	final ExecutorService e = new CustomExecutor(2);
880	>	try (PoolCleaner cleaner = cleaner(e)) {
881		Future<String> future = e.submit(new StringTask());
882		String result = future.get();
883		assertSame(TEST_STRING, result);
884		}
741	–	catch (ExecutionException ex) {
742	–	unexpectedException();
743	–	}
744	–	catch (InterruptedException ex) {
745	–	unexpectedException();
746	–	} finally {
747	–	joinPool(e);
748	–	}
885		}
886
887		/**
888		* completed submit of runnable returns successfully
889		*/
890	<	public void testSubmitRunnable() {
891	<	ExecutorService e = new CustomExecutor(2);
892	<	try {
890	>	public void testSubmitRunnable() throws Exception {
891	>	final ExecutorService e = new CustomExecutor(2);
892	>	try (PoolCleaner cleaner = cleaner(e)) {
893		Future<?> future = e.submit(new NoOpRunnable());
894		future.get();
895		assertTrue(future.isDone());
896		}
761	–	catch (ExecutionException ex) {
762	–	unexpectedException();
763	–	}
764	–	catch (InterruptedException ex) {
765	–	unexpectedException();
766	–	} finally {
767	–	joinPool(e);
768	–	}
897		}
898
899		/**
900		* completed submit of (runnable, result) returns result
901		*/
902	<	public void testSubmitRunnable2() {
903	<	ExecutorService e = new CustomExecutor(2);
904	<	try {
902	>	public void testSubmitRunnable2() throws Exception {
903	>	final ExecutorService e = new CustomExecutor(2);
904	>	try (PoolCleaner cleaner = cleaner(e)) {
905		Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING);
906		String result = future.get();
907		assertSame(TEST_STRING, result);
908		}
781	–	catch (ExecutionException ex) {
782	–	unexpectedException();
783	–	}
784	–	catch (InterruptedException ex) {
785	–	unexpectedException();
786	–	} finally {
787	–	joinPool(e);
788	–	}
909		}
910
911		/**
912		* invokeAny(null) throws NPE
913		*/
914	<	public void testInvokeAny1() {
915	<	ExecutorService e = new CustomExecutor(2);
916	<	try {
917	<	e.invokeAny(null);
918	<	} catch (NullPointerException success) {
919	<	} catch (Exception ex) {
920	<	unexpectedException();
801	<	} finally {
802	<	joinPool(e);
914	>	public void testInvokeAny1() throws Exception {
915	>	final ExecutorService e = new CustomExecutor(2);
916	>	try (PoolCleaner cleaner = cleaner(e)) {
917	>	try {
918	>	e.invokeAny(null);
919	>	shouldThrow();
920	>	} catch (NullPointerException success) {}
921		}
922		}
923
924		/**
925		* invokeAny(empty collection) throws IAE
926		*/
927	<	public void testInvokeAny2() {
928	<	ExecutorService e = new CustomExecutor(2);
929	<	try {
930	<	e.invokeAny(new ArrayList<Callable<String>>());
931	<	} catch (IllegalArgumentException success) {
932	<	} catch (Exception ex) {
933	<	unexpectedException();
816	<	} finally {
817	<	joinPool(e);
927	>	public void testInvokeAny2() throws Exception {
928	>	final ExecutorService e = new CustomExecutor(2);
929	>	try (PoolCleaner cleaner = cleaner(e)) {
930	>	try {
931	>	e.invokeAny(new ArrayList<Callable<String>>());
932	>	shouldThrow();
933	>	} catch (IllegalArgumentException success) {}
934		}
935		}
936
937		/**
938		* invokeAny(c) throws NPE if c has null elements
939		*/
940	<	public void testInvokeAny3() {
941	<	ExecutorService e = new CustomExecutor(2);
942	<	try {
943	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
944	<	l.add(new StringTask());
940	>	public void testInvokeAny3() throws Exception {
941	>	final CountDownLatch latch = new CountDownLatch(1);
942	>	final ExecutorService e = new CustomExecutor(2);
943	>	try (PoolCleaner cleaner = cleaner(e)) {
944	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
945	>	l.add(latchAwaitingStringTask(latch));
946		l.add(null);
947	<	e.invokeAny(l);
948	<	} catch (NullPointerException success) {
949	<	} catch (Exception ex) {
950	<	unexpectedException();
951	<	} finally {
835	<	joinPool(e);
947	>	try {
948	>	e.invokeAny(l);
949	>	shouldThrow();
950	>	} catch (NullPointerException success) {}
951	>	latch.countDown();
952		}
953		}
954
955		/**
956		* invokeAny(c) throws ExecutionException if no task completes
957		*/
958	<	public void testInvokeAny4() {
959	<	ExecutorService e = new CustomExecutor(2);
960	<	try {
961	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
958	>	public void testInvokeAny4() throws Exception {
959	>	final ExecutorService e = new CustomExecutor(2);
960	>	try (PoolCleaner cleaner = cleaner(e)) {
961	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
962		l.add(new NPETask());
963	<	e.invokeAny(l);
964	<	} catch (ExecutionException success) {
965	<	} catch (Exception ex) {
966	<	unexpectedException();
967	<	} finally {
968	<	joinPool(e);
963	>	try {
964	>	e.invokeAny(l);
965	>	shouldThrow();
966	>	} catch (ExecutionException success) {
967	>	assertTrue(success.getCause() instanceof NullPointerException);
968	>	}
969		}
970		}
971
972		/**
973		* invokeAny(c) returns result of some task
974		*/
975	<	public void testInvokeAny5() {
976	<	ExecutorService e = new CustomExecutor(2);
977	<	try {
978	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
975	>	public void testInvokeAny5() throws Exception {
976	>	final ExecutorService e = new CustomExecutor(2);
977	>	try (PoolCleaner cleaner = cleaner(e)) {
978	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
979		l.add(new StringTask());
980		l.add(new StringTask());
981		String result = e.invokeAny(l);
982		assertSame(TEST_STRING, result);
867	–	} catch (ExecutionException success) {
868	–	} catch (Exception ex) {
869	–	unexpectedException();
870	–	} finally {
871	–	joinPool(e);
983		}
984		}
985
986		/**
987		* invokeAll(null) throws NPE
988		*/
989	<	public void testInvokeAll1() {
990	<	ExecutorService e = new CustomExecutor(2);
991	<	try {
992	<	e.invokeAll(null);
993	<	} catch (NullPointerException success) {
994	<	} catch (Exception ex) {
995	<	unexpectedException();
885	<	} finally {
886	<	joinPool(e);
989	>	public void testInvokeAll1() throws Exception {
990	>	final ExecutorService e = new CustomExecutor(2);
991	>	try (PoolCleaner cleaner = cleaner(e)) {
992	>	try {
993	>	e.invokeAll(null);
994	>	shouldThrow();
995	>	} catch (NullPointerException success) {}
996		}
997		}
998
999		/**
1000		* invokeAll(empty collection) returns empty collection
1001		*/
1002	<	public void testInvokeAll2() {
1003	<	ExecutorService e = new CustomExecutor(2);
1004	<	try {
1002	>	public void testInvokeAll2() throws Exception {
1003	>	final ExecutorService e = new CustomExecutor(2);
1004	>	try (PoolCleaner cleaner = cleaner(e)) {
1005		List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>());
1006		assertTrue(r.isEmpty());
898	–	} catch (Exception ex) {
899	–	unexpectedException();
900	–	} finally {
901	–	joinPool(e);
1007		}
1008		}
1009
1010		/**
1011		* invokeAll(c) throws NPE if c has null elements
1012		*/
1013	<	public void testInvokeAll3() {
1014	<	ExecutorService e = new CustomExecutor(2);
1015	<	try {
1016	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1013	>	public void testInvokeAll3() throws Exception {
1014	>	final ExecutorService e = new CustomExecutor(2);
1015	>	try (PoolCleaner cleaner = cleaner(e)) {
1016	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1017		l.add(new StringTask());
1018		l.add(null);
1019	<	e.invokeAll(l);
1020	<	} catch (NullPointerException success) {
1021	<	} catch (Exception ex) {
1022	<	unexpectedException();
918	<	} finally {
919	<	joinPool(e);
1019	>	try {
1020	>	e.invokeAll(l);
1021	>	shouldThrow();
1022	>	} catch (NullPointerException success) {}
1023		}
1024		}
1025
1026		/**
1027		* get of invokeAll(c) throws exception on failed task
1028		*/
1029	<	public void testInvokeAll4() {
1030	<	ExecutorService e = new CustomExecutor(2);
1031	<	try {
1032	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1029	>	public void testInvokeAll4() throws Exception {
1030	>	final ExecutorService e = new CustomExecutor(2);
1031	>	try (PoolCleaner cleaner = cleaner(e)) {
1032	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1033		l.add(new NPETask());
1034	<	List<Future<String>> result = e.invokeAll(l);
1035	<	assertEquals(1, result.size());
1036	<	for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
1037	<	it.next().get();
1038	<	} catch (ExecutionException success) {
1039	<	} catch (Exception ex) {
1040	<	unexpectedException();
1041	<	} finally {
939	<	joinPool(e);
1034	>	List<Future<String>> futures = e.invokeAll(l);
1035	>	assertEquals(1, futures.size());
1036	>	try {
1037	>	futures.get(0).get();
1038	>	shouldThrow();
1039	>	} catch (ExecutionException success) {
1040	>	assertTrue(success.getCause() instanceof NullPointerException);
1041	>	}
1042		}
1043		}
1044
1045		/**
1046		* invokeAll(c) returns results of all completed tasks
1047		*/
1048	<	public void testInvokeAll5() {
1049	<	ExecutorService e = new CustomExecutor(2);
1050	<	try {
1051	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1048	>	public void testInvokeAll5() throws Exception {
1049	>	final ExecutorService e = new CustomExecutor(2);
1050	>	try (PoolCleaner cleaner = cleaner(e)) {
1051	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1052		l.add(new StringTask());
1053		l.add(new StringTask());
1054	<	List<Future<String>> result = e.invokeAll(l);
1055	<	assertEquals(2, result.size());
1056	<	for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
1057	<	assertSame(TEST_STRING, it.next().get());
956	<	} catch (ExecutionException success) {
957	<	} catch (Exception ex) {
958	<	unexpectedException();
959	<	} finally {
960	<	joinPool(e);
1054	>	List<Future<String>> futures = e.invokeAll(l);
1055	>	assertEquals(2, futures.size());
1056	>	for (Future<String> future : futures)
1057	>	assertSame(TEST_STRING, future.get());
1058		}
1059		}
1060
1061		/**
1062		* timed invokeAny(null) throws NPE
1063		*/
1064	<	public void testTimedInvokeAny1() {
1065	<	ExecutorService e = new CustomExecutor(2);
1066	<	try {
1067	<	e.invokeAny(null, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1068	<	} catch (NullPointerException success) {
1069	<	} catch (Exception ex) {
1070	<	unexpectedException();
974	<	} finally {
975	<	joinPool(e);
1064	>	public void testTimedInvokeAny1() throws Exception {
1065	>	final ExecutorService e = new CustomExecutor(2);
1066	>	try (PoolCleaner cleaner = cleaner(e)) {
1067	>	try {
1068	>	e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS);
1069	>	shouldThrow();
1070	>	} catch (NullPointerException success) {}
1071		}
1072		}
1073
1074		/**
1075		* timed invokeAny(,,null) throws NPE
1076		*/
1077	<	public void testTimedInvokeAnyNullTimeUnit() {
1078	<	ExecutorService e = new CustomExecutor(2);
1079	<	try {
1080	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1077	>	public void testTimedInvokeAnyNullTimeUnit() throws Exception {
1078	>	final ExecutorService e = new CustomExecutor(2);
1079	>	try (PoolCleaner cleaner = cleaner(e)) {
1080	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1081		l.add(new StringTask());
1082	<	e.invokeAny(l, MEDIUM_DELAY_MS, null);
1083	<	} catch (NullPointerException success) {
1084	<	} catch (Exception ex) {
1085	<	unexpectedException();
991	<	} finally {
992	<	joinPool(e);
1082	>	try {
1083	>	e.invokeAny(l, MEDIUM_DELAY_MS, null);
1084	>	shouldThrow();
1085	>	} catch (NullPointerException success) {}
1086		}
1087		}
1088
1089		/**
1090		* timed invokeAny(empty collection) throws IAE
1091		*/
1092	<	public void testTimedInvokeAny2() {
1093	<	ExecutorService e = new CustomExecutor(2);
1094	<	try {
1095	<	e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1096	<	} catch (IllegalArgumentException success) {
1097	<	} catch (Exception ex) {
1098	<	unexpectedException();
1006	<	} finally {
1007	<	joinPool(e);
1092	>	public void testTimedInvokeAny2() throws Exception {
1093	>	final ExecutorService e = new CustomExecutor(2);
1094	>	try (PoolCleaner cleaner = cleaner(e)) {
1095	>	try {
1096	>	e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
1097	>	shouldThrow();
1098	>	} catch (IllegalArgumentException success) {}
1099		}
1100		}
1101
1102		/**
1103		* timed invokeAny(c) throws NPE if c has null elements
1104		*/
1105	<	public void testTimedInvokeAny3() {
1106	<	ExecutorService e = new CustomExecutor(2);
1107	<	try {
1108	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1109	<	l.add(new StringTask());
1105	>	public void testTimedInvokeAny3() throws Exception {
1106	>	CountDownLatch latch = new CountDownLatch(1);
1107	>	final ExecutorService e = new CustomExecutor(2);
1108	>	try (PoolCleaner cleaner = cleaner(e)) {
1109	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1110	>	l.add(latchAwaitingStringTask(latch));
1111		l.add(null);
1112	<	e.invokeAny(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1113	<	} catch (NullPointerException success) {
1114	<	} catch (Exception ex) {
1115	<	ex.printStackTrace();
1116	<	unexpectedException();
1025	<	} finally {
1026	<	joinPool(e);
1112	>	try {
1113	>	e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1114	>	shouldThrow();
1115	>	} catch (NullPointerException success) {}
1116	>	latch.countDown();
1117		}
1118		}
1119
1120		/**
1121		* timed invokeAny(c) throws ExecutionException if no task completes
1122		*/
1123	<	public void testTimedInvokeAny4() {
1124	<	ExecutorService e = new CustomExecutor(2);
1125	<	try {
1126	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1123	>	public void testTimedInvokeAny4() throws Exception {
1124	>	final ExecutorService e = new CustomExecutor(2);
1125	>	try (PoolCleaner cleaner = cleaner(e)) {
1126	>	long startTime = System.nanoTime();
1127	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1128		l.add(new NPETask());
1129	<	e.invokeAny(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1130	<	} catch (ExecutionException success) {
1131	<	} catch (Exception ex) {
1132	<	unexpectedException();
1133	<	} finally {
1134	<	joinPool(e);
1129	>	try {
1130	>	e.invokeAny(l, LONG_DELAY_MS, MILLISECONDS);
1131	>	shouldThrow();
1132	>	} catch (ExecutionException success) {
1133	>	assertTrue(success.getCause() instanceof NullPointerException);
1134	>	}
1135	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1136		}
1137		}
1138
1139		/**
1140		* timed invokeAny(c) returns result of some task
1141		*/
1142	<	public void testTimedInvokeAny5() {
1143	<	ExecutorService e = new CustomExecutor(2);
1144	<	try {
1145	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1142	>	public void testTimedInvokeAny5() throws Exception {
1143	>	final ExecutorService e = new CustomExecutor(2);
1144	>	try (PoolCleaner cleaner = cleaner(e)) {
1145	>	long startTime = System.nanoTime();
1146	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1147		l.add(new StringTask());
1148		l.add(new StringTask());
1149	<	String result = e.invokeAny(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1149	>	String result = e.invokeAny(l, LONG_DELAY_MS, MILLISECONDS);
1150		assertSame(TEST_STRING, result);
1151	<	} catch (ExecutionException success) {
1059	<	} catch (Exception ex) {
1060	<	unexpectedException();
1061	<	} finally {
1062	<	joinPool(e);
1151	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1152		}
1153		}
1154
1155		/**
1156		* timed invokeAll(null) throws NPE
1157		*/
1158	<	public void testTimedInvokeAll1() {
1159	<	ExecutorService e = new CustomExecutor(2);
1160	<	try {
1161	<	e.invokeAll(null, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1162	<	} catch (NullPointerException success) {
1163	<	} catch (Exception ex) {
1164	<	unexpectedException();
1076	<	} finally {
1077	<	joinPool(e);
1158	>	public void testTimedInvokeAll1() throws Exception {
1159	>	final ExecutorService e = new CustomExecutor(2);
1160	>	try (PoolCleaner cleaner = cleaner(e)) {
1161	>	try {
1162	>	e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS);
1163	>	shouldThrow();
1164	>	} catch (NullPointerException success) {}
1165		}
1166		}
1167
1168		/**
1169		* timed invokeAll(,,null) throws NPE
1170		*/
1171	<	public void testTimedInvokeAllNullTimeUnit() {
1172	<	ExecutorService e = new CustomExecutor(2);
1173	<	try {
1174	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1171	>	public void testTimedInvokeAllNullTimeUnit() throws Exception {
1172	>	final ExecutorService e = new CustomExecutor(2);
1173	>	try (PoolCleaner cleaner = cleaner(e)) {
1174	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1175		l.add(new StringTask());
1176	<	e.invokeAll(l, MEDIUM_DELAY_MS, null);
1177	<	} catch (NullPointerException success) {
1178	<	} catch (Exception ex) {
1179	<	unexpectedException();
1093	<	} finally {
1094	<	joinPool(e);
1176	>	try {
1177	>	e.invokeAll(l, MEDIUM_DELAY_MS, null);
1178	>	shouldThrow();
1179	>	} catch (NullPointerException success) {}
1180		}
1181		}
1182
1183		/**
1184		* timed invokeAll(empty collection) returns empty collection
1185		*/
1186	<	public void testTimedInvokeAll2() {
1187	<	ExecutorService e = new CustomExecutor(2);
1188	<	try {
1189	<	List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1186	>	public void testTimedInvokeAll2() throws Exception {
1187	>	final ExecutorService e = new CustomExecutor(2);
1188	>	try (PoolCleaner cleaner = cleaner(e)) {
1189	>	List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
1190		assertTrue(r.isEmpty());
1106	–	} catch (Exception ex) {
1107	–	unexpectedException();
1108	–	} finally {
1109	–	joinPool(e);
1191		}
1192		}
1193
1194		/**
1195		* timed invokeAll(c) throws NPE if c has null elements
1196		*/
1197	<	public void testTimedInvokeAll3() {
1198	<	ExecutorService e = new CustomExecutor(2);
1199	<	try {
1200	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1197	>	public void testTimedInvokeAll3() throws Exception {
1198	>	final ExecutorService e = new CustomExecutor(2);
1199	>	try (PoolCleaner cleaner = cleaner(e)) {
1200	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1201		l.add(new StringTask());
1202		l.add(null);
1203	<	e.invokeAll(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1204	<	} catch (NullPointerException success) {
1205	<	} catch (Exception ex) {
1206	<	unexpectedException();
1126	<	} finally {
1127	<	joinPool(e);
1203	>	try {
1204	>	e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1205	>	shouldThrow();
1206	>	} catch (NullPointerException success) {}
1207		}
1208		}
1209
1210		/**
1211		* get of element of invokeAll(c) throws exception on failed task
1212		*/
1213	<	public void testTimedInvokeAll4() {
1214	<	ExecutorService e = new CustomExecutor(2);
1215	<	try {
1216	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1213	>	public void testTimedInvokeAll4() throws Exception {
1214	>	final ExecutorService e = new CustomExecutor(2);
1215	>	try (PoolCleaner cleaner = cleaner(e)) {
1216	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1217		l.add(new NPETask());
1218	<	List<Future<String>> result = e.invokeAll(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1219	<	assertEquals(1, result.size());
1220	<	for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
1221	<	it.next().get();
1222	<	} catch (ExecutionException success) {
1223	<	} catch (Exception ex) {
1224	<	unexpectedException();
1225	<	} finally {
1226	<	joinPool(e);
1218	>	List<Future<String>> futures =
1219	>	e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1220	>	assertEquals(1, futures.size());
1221	>	try {
1222	>	futures.get(0).get();
1223	>	shouldThrow();
1224	>	} catch (ExecutionException success) {
1225	>	assertTrue(success.getCause() instanceof NullPointerException);
1226	>	}
1227		}
1228		}
1229
1230		/**
1231		* timed invokeAll(c) returns results of all completed tasks
1232		*/
1233	<	public void testTimedInvokeAll5() {
1234	<	ExecutorService e = new CustomExecutor(2);
1235	<	try {
1236	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1233	>	public void testTimedInvokeAll5() throws Exception {
1234	>	final ExecutorService e = new CustomExecutor(2);
1235	>	try (PoolCleaner cleaner = cleaner(e)) {
1236	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1237		l.add(new StringTask());
1238		l.add(new StringTask());
1239	<	List<Future<String>> result = e.invokeAll(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1240	<	assertEquals(2, result.size());
1241	<	for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
1242	<	assertSame(TEST_STRING, it.next().get());
1243	<	} catch (ExecutionException success) {
1165	<	} catch (Exception ex) {
1166	<	unexpectedException();
1167	<	} finally {
1168	<	joinPool(e);
1239	>	List<Future<String>> futures =
1240	>	e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS);
1241	>	assertEquals(2, futures.size());
1242	>	for (Future<String> future : futures)
1243	>	assertSame(TEST_STRING, future.get());
1244		}
1245		}
1246
1247		/**
1248		* timed invokeAll(c) cancels tasks not completed by timeout
1249		*/
1250	<	public void testTimedInvokeAll6() {
1251	<	ExecutorService e = new CustomExecutor(2);
1252	<	try {
1253	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1254	<	l.add(new StringTask());
1255	<	l.add(Executors.callable(new MediumPossiblyInterruptedRunnable(), TEST_STRING));
1256	<	l.add(new StringTask());
1257	<	List<Future<String>> result = e.invokeAll(l, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
1258	<	assertEquals(3, result.size());
1259	<	Iterator<Future<String>> it = result.iterator();
1260	<	Future<String> f1 = it.next();
1261	<	Future<String> f2 = it.next();
1262	<	Future<String> f3 = it.next();
1263	<	assertTrue(f1.isDone());
1264	<	assertTrue(f2.isDone());
1265	<	assertTrue(f3.isDone());
1266	<	assertFalse(f1.isCancelled());
1267	<	assertTrue(f2.isCancelled());
1268	<	} catch (Exception ex) {
1269	<	unexpectedException();
1270	<	} finally {
1271	<	joinPool(e);
1250	>	public void testTimedInvokeAll6() throws Exception {
1251	>	for (long timeout = timeoutMillis();;) {
1252	>	final CountDownLatch done = new CountDownLatch(1);
1253	>	final Callable<String> waiter = new CheckedCallable<String>() {
1254	>	public String realCall() {
1255	>	try { done.await(LONG_DELAY_MS, MILLISECONDS); }
1256	>	catch (InterruptedException ok) {}
1257	>	return "1"; }};
1258	>	final ExecutorService p = new CustomExecutor(2);
1259	>	try (PoolCleaner cleaner = cleaner(p, done)) {
1260	>	List<Callable<String>> tasks = new ArrayList<>();
1261	>	tasks.add(new StringTask("0"));
1262	>	tasks.add(waiter);
1263	>	tasks.add(new StringTask("2"));
1264	>	long startTime = System.nanoTime();
1265	>	List<Future<String>> futures =
1266	>	p.invokeAll(tasks, timeout, MILLISECONDS);
1267	>	assertEquals(tasks.size(), futures.size());
1268	>	assertTrue(millisElapsedSince(startTime) >= timeout);
1269	>	for (Future future : futures)
1270	>	assertTrue(future.isDone());
1271	>	assertTrue(futures.get(1).isCancelled());
1272	>	try {
1273	>	assertEquals("0", futures.get(0).get());
1274	>	assertEquals("2", futures.get(2).get());
1275	>	break;
1276	>	} catch (CancellationException retryWithLongerTimeout) {
1277	>	timeout *= 2;
1278	>	if (timeout >= LONG_DELAY_MS / 2)
1279	>	fail("expected exactly one task to be cancelled");
1280	>	}
1281	>	}
1282		}
1283		}
1284
1200	–
1285		}

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