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

Comparing jsr166/src/test/tck/ScheduledExecutorSubclassTest.java (file contents):
Revision 1.29 by jsr166, Fri Jun 10 19:45:01 2011 UTC vs.
Revision 1.72 by jsr166, Fri Sep 6 18:43:35 2019 UTC

#	Line 4 | Line 4
4		* http://creativecommons.org/publicdomain/zero/1.0/
5		*/
6
7	–	import junit.framework.*;
8	–	import java.util.*;
9	–	import java.util.concurrent.*;
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.Collection;
13	+	import java.util.Collections;
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.Delayed;
21	+	import java.util.concurrent.ExecutionException;
22	+	import java.util.concurrent.ExecutorService;
23	+	import java.util.concurrent.Future;
24	+	import java.util.concurrent.RejectedExecutionException;
25	+	import java.util.concurrent.RejectedExecutionHandler;
26	+	import java.util.concurrent.RunnableScheduledFuture;
27	+	import java.util.concurrent.ScheduledFuture;
28	+	import java.util.concurrent.ScheduledThreadPoolExecutor;
29	+	import java.util.concurrent.ThreadFactory;
30	+	import java.util.concurrent.ThreadLocalRandom;
31	+	import java.util.concurrent.ThreadPoolExecutor;
32	+	import java.util.concurrent.TimeoutException;
33	+	import java.util.concurrent.TimeUnit;
34	+	import java.util.concurrent.atomic.AtomicBoolean;
35		import java.util.concurrent.atomic.AtomicInteger;
36	+	import java.util.concurrent.atomic.AtomicLong;
37	+	import java.util.stream.Stream;
38	+
39	+	import junit.framework.Test;
40	+	import junit.framework.TestSuite;
41
42		public class ScheduledExecutorSubclassTest extends JSR166TestCase {
43		public static void main(String[] args) {
44	<	junit.textui.TestRunner.run(suite());
44	>	main(suite(), args);
45		}
46		public static Test suite() {
47		return new TestSuite(ScheduledExecutorSubclassTest.class);
48		}
49
50		static class CustomTask<V> implements RunnableScheduledFuture<V> {
51	<	RunnableScheduledFuture<V> task;
51	>	private final RunnableScheduledFuture<V> task;
52		volatile boolean ran;
53	<	CustomTask(RunnableScheduledFuture<V> t) { task = t; }
53	>	CustomTask(RunnableScheduledFuture<V> task) { this.task = task; }
54		public boolean isPeriodic() { return task.isPeriodic(); }
55		public void run() {
56		ran = true;
#	Line 36 | Line 65 | public class ScheduledExecutorSubclassTe
65		}
66		public boolean isCancelled() { return task.isCancelled(); }
67		public boolean isDone() { return task.isDone(); }
68	<	public V get() throws InterruptedException,  ExecutionException {
68	>	public V get() throws InterruptedException, ExecutionException {
69		V v = task.get();
70		assertTrue(ran);
71		return v;
72		}
73	<	public V get(long time, TimeUnit unit) throws InterruptedException,  ExecutionException, TimeoutException {
73	>	public V get(long time, TimeUnit unit) throws InterruptedException, ExecutionException, TimeoutException {
74		V v = task.get(time, unit);
75		assertTrue(ran);
76		return v;
#	Line 76 | Line 105 | public class ScheduledExecutorSubclassTe
105		* execute successfully executes a runnable
106		*/
107		public void testExecute() throws InterruptedException {
108	<	CustomExecutor p = new CustomExecutor(1);
109	<	final CountDownLatch done = new CountDownLatch(1);
110	<	final Runnable task = new CheckedRunnable() {
111	<	public void realRun() {
112	<	done.countDown();
84	<	}};
85	<	try {
108	>	final CustomExecutor p = new CustomExecutor(1);
109	>	try (PoolCleaner cleaner = cleaner(p)) {
110	>	final CountDownLatch done = new CountDownLatch(1);
111	>	final Runnable task = new CheckedRunnable() {
112	>	public void realRun() { done.countDown(); }};
113		p.execute(task);
114	<	assertTrue(done.await(SMALL_DELAY_MS, MILLISECONDS));
88	<	} finally {
89	<	joinPool(p);
114	>	await(done);
115		}
116		}
117
#	Line 94 | Line 119 | public class ScheduledExecutorSubclassTe
119		* delayed schedule of callable successfully executes after delay
120		*/
121		public void testSchedule1() throws Exception {
97	–	CustomExecutor p = new CustomExecutor(1);
98	–	final long startTime = System.nanoTime();
122		final CountDownLatch done = new CountDownLatch(1);
123	<	try {
123	>	final CustomExecutor p = new CustomExecutor(1);
124	>	try (PoolCleaner cleaner = cleaner(p, done)) {
125	>	final long startTime = System.nanoTime();
126		Callable task = new CheckedCallable<Boolean>() {
127		public Boolean realCall() {
128		done.countDown();
#	Line 107 | Line 132 | public class ScheduledExecutorSubclassTe
132		Future f = p.schedule(task, timeoutMillis(), MILLISECONDS);
133		assertSame(Boolean.TRUE, f.get());
134		assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
110	–	assertTrue(done.await(0L, MILLISECONDS));
111	–	} finally {
112	–	joinPool(p);
135		}
136		}
137
#	Line 117 | Line 139 | public class ScheduledExecutorSubclassTe
139		* delayed schedule of runnable successfully executes after delay
140		*/
141		public void testSchedule3() throws Exception {
142	<	CustomExecutor p = new CustomExecutor(1);
143	<	final long startTime = System.nanoTime();
144	<	final CountDownLatch done = new CountDownLatch(1);
145	<	try {
142	>	final CustomExecutor p = new CustomExecutor(1);
143	>	try (PoolCleaner cleaner = cleaner(p)) {
144	>	final long startTime = System.nanoTime();
145	>	final CountDownLatch done = new CountDownLatch(1);
146		Runnable task = new CheckedRunnable() {
147		public void realRun() {
148		done.countDown();
#	Line 130 | Line 152 | public class ScheduledExecutorSubclassTe
152		await(done);
153		assertNull(f.get(LONG_DELAY_MS, MILLISECONDS));
154		assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
133	–	} finally {
134	–	joinPool(p);
155		}
156		}
157
#	Line 139 | Line 159 | public class ScheduledExecutorSubclassTe
159		* scheduleAtFixedRate executes runnable after given initial delay
160		*/
161		public void testSchedule4() throws InterruptedException {
162	<	CustomExecutor p = new CustomExecutor(1);
163	<	final long startTime = System.nanoTime();
164	<	final CountDownLatch done = new CountDownLatch(1);
165	<	try {
162	>	final CustomExecutor p = new CustomExecutor(1);
163	>	try (PoolCleaner cleaner = cleaner(p)) {
164	>	final long startTime = System.nanoTime();
165	>	final CountDownLatch done = new CountDownLatch(1);
166		Runnable task = new CheckedRunnable() {
167		public void realRun() {
168		done.countDown();
#	Line 154 | Line 174 | public class ScheduledExecutorSubclassTe
174		await(done);
175		assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
176		f.cancel(true);
157	–	} finally {
158	–	joinPool(p);
177		}
178		}
179
#	Line 163 | Line 181 | public class ScheduledExecutorSubclassTe
181		* scheduleWithFixedDelay executes runnable after given initial delay
182		*/
183		public void testSchedule5() throws InterruptedException {
184	<	CustomExecutor p = new CustomExecutor(1);
185	<	final long startTime = System.nanoTime();
186	<	final CountDownLatch done = new CountDownLatch(1);
187	<	try {
184	>	final CustomExecutor p = new CustomExecutor(1);
185	>	try (PoolCleaner cleaner = cleaner(p)) {
186	>	final long startTime = System.nanoTime();
187	>	final CountDownLatch done = new CountDownLatch(1);
188		Runnable task = new CheckedRunnable() {
189		public void realRun() {
190		done.countDown();
#	Line 178 | Line 196 | public class ScheduledExecutorSubclassTe
196		await(done);
197		assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
198		f.cancel(true);
181	–	} finally {
182	–	joinPool(p);
199		}
200		}
201
#	Line 189 | Line 205 | public class ScheduledExecutorSubclassTe
205		}
206
207		/**
208	<	* scheduleAtFixedRate executes series of tasks at given rate
208	>	* scheduleAtFixedRate executes series of tasks at given rate.
209	>	* Eventually, it must hold that:
210	>	*   cycles - 1 <= elapsedMillis/delay < cycles
211		*/
212		public void testFixedRateSequence() throws InterruptedException {
213	<	CustomExecutor p = new CustomExecutor(1);
214	<	RunnableCounter counter = new RunnableCounter();
215	<	ScheduledFuture h =
216	<	p.scheduleAtFixedRate(counter, 0, 1, MILLISECONDS);
217	<	delay(SMALL_DELAY_MS);
218	<	h.cancel(true);
219	<	int c = counter.count.get();
220	<	// By time scaling conventions, we must have at least
221	<	// an execution per SHORT delay, but no more than one SHORT more
222	<	assertTrue(c >= SMALL_DELAY_MS / SHORT_DELAY_MS);
223	<	assertTrue(c <= SMALL_DELAY_MS + SHORT_DELAY_MS);
224	<	joinPool(p);
213	>	final CustomExecutor p = new CustomExecutor(1);
214	>	try (PoolCleaner cleaner = cleaner(p)) {
215	>	for (int delay = 1; delay <= LONG_DELAY_MS; delay *= 3) {
216	>	final long startTime = System.nanoTime();
217	>	final int cycles = 8;
218	>	final CountDownLatch done = new CountDownLatch(cycles);
219	>	final Runnable task = new CheckedRunnable() {
220	>	public void realRun() { done.countDown(); }};
221	>	final ScheduledFuture periodicTask =
222	>	p.scheduleAtFixedRate(task, 0, delay, MILLISECONDS);
223	>	final int totalDelayMillis = (cycles - 1) * delay;
224	>	await(done, totalDelayMillis + LONG_DELAY_MS);
225	>	periodicTask.cancel(true);
226	>	final long elapsedMillis = millisElapsedSince(startTime);
227	>	assertTrue(elapsedMillis >= totalDelayMillis);
228	>	if (elapsedMillis <= cycles * delay)
229	>	return;
230	>	// else retry with longer delay
231	>	}
232	>	fail("unexpected execution rate");
233	>	}
234		}
235
236		/**
237	<	* scheduleWithFixedDelay executes series of tasks with given period
237	>	* scheduleWithFixedDelay executes series of tasks with given period.
238	>	* Eventually, it must hold that each task starts at least delay and at
239	>	* most 2 * delay after the termination of the previous task.
240		*/
241		public void testFixedDelaySequence() throws InterruptedException {
242	<	CustomExecutor p = new CustomExecutor(1);
243	<	RunnableCounter counter = new RunnableCounter();
244	<	ScheduledFuture h =
245	<	p.scheduleWithFixedDelay(counter, 0, 1, MILLISECONDS);
246	<	delay(SMALL_DELAY_MS);
247	<	h.cancel(true);
248	<	int c = counter.count.get();
249	<	assertTrue(c >= SMALL_DELAY_MS / SHORT_DELAY_MS);
250	<	assertTrue(c <= SMALL_DELAY_MS + SHORT_DELAY_MS);
251	<	joinPool(p);
252	<	}
253	<
254	<	/**
255	<	* execute(null) throws NPE
256	<	*/
257	<	public void testExecuteNull() throws InterruptedException {
258	<	CustomExecutor se = new CustomExecutor(1);
259	<	try {
260	<	se.execute(null);
261	<	shouldThrow();
262	<	} catch (NullPointerException success) {}
263	<	joinPool(se);
242	>	final CustomExecutor p = new CustomExecutor(1);
243	>	try (PoolCleaner cleaner = cleaner(p)) {
244	>	for (int delay = 1; delay <= LONG_DELAY_MS; delay *= 3) {
245	>	final long startTime = System.nanoTime();
246	>	final AtomicLong previous = new AtomicLong(startTime);
247	>	final AtomicBoolean tryLongerDelay = new AtomicBoolean(false);
248	>	final int cycles = 8;
249	>	final CountDownLatch done = new CountDownLatch(cycles);
250	>	final int d = delay;
251	>	final Runnable task = new CheckedRunnable() {
252	>	public void realRun() {
253	>	long now = System.nanoTime();
254	>	long elapsedMillis
255	>	= NANOSECONDS.toMillis(now - previous.get());
256	>	if (done.getCount() == cycles) { // first execution
257	>	if (elapsedMillis >= d)
258	>	tryLongerDelay.set(true);
259	>	} else {
260	>	assertTrue(elapsedMillis >= d);
261	>	if (elapsedMillis >= 2 * d)
262	>	tryLongerDelay.set(true);
263	>	}
264	>	previous.set(now);
265	>	done.countDown();
266	>	}};
267	>	final ScheduledFuture periodicTask =
268	>	p.scheduleWithFixedDelay(task, 0, delay, MILLISECONDS);
269	>	final int totalDelayMillis = (cycles - 1) * delay;
270	>	await(done, totalDelayMillis + cycles * LONG_DELAY_MS);
271	>	periodicTask.cancel(true);
272	>	final long elapsedMillis = millisElapsedSince(startTime);
273	>	assertTrue(elapsedMillis >= totalDelayMillis);
274	>	if (!tryLongerDelay.get())
275	>	return;
276	>	// else retry with longer delay
277	>	}
278	>	fail("unexpected execution rate");
279	>	}
280		}
281
282		/**
283	<	* schedule(null) throws NPE
283	>	* Submitting null tasks throws NullPointerException
284		*/
285	<	public void testScheduleNull() throws InterruptedException {
286	<	CustomExecutor se = new CustomExecutor(1);
287	<	try {
288	<	TrackedCallable callable = null;
289	<	Future f = se.schedule(callable, SHORT_DELAY_MS, MILLISECONDS);
245	<	shouldThrow();
246	<	} catch (NullPointerException success) {}
247	<	joinPool(se);
285	>	public void testNullTaskSubmission() {
286	>	final CustomExecutor p = new CustomExecutor(1);
287	>	try (PoolCleaner cleaner = cleaner(p)) {
288	>	assertNullTaskSubmissionThrowsNullPointerException(p);
289	>	}
290		}
291
292		/**
293	<	* execute throws RejectedExecutionException if shutdown
293	>	* Submitted tasks are rejected when shutdown
294		*/
295	<	public void testSchedule1_RejectedExecutionException() {
296	<	CustomExecutor se = new CustomExecutor(1);
297	<	try {
298	<	se.shutdown();
299	<	se.schedule(new NoOpRunnable(),
300	<	MEDIUM_DELAY_MS, MILLISECONDS);
301	<	shouldThrow();
302	<	} catch (RejectedExecutionException success) {
303	<	} catch (SecurityException ok) {
304	<	}
295	>	public void testSubmittedTasksRejectedWhenShutdown() throws InterruptedException {
296	>	final CustomExecutor p = new CustomExecutor(2);
297	>	final ThreadLocalRandom rnd = ThreadLocalRandom.current();
298	>	final CountDownLatch threadsStarted = new CountDownLatch(p.getCorePoolSize());
299	>	final CountDownLatch done = new CountDownLatch(1);
300	>	final Runnable r = () -> {
301	>	threadsStarted.countDown();
302	>	for (;;) {
303	>	try {
304	>	done.await();
305	>	return;
306	>	} catch (InterruptedException shutdownNowDeliberatelyIgnored) {}
307	>	}};
308	>	final Callable<Boolean> c = () -> {
309	>	threadsStarted.countDown();
310	>	for (;;) {
311	>	try {
312	>	done.await();
313	>	return Boolean.TRUE;
314	>	} catch (InterruptedException shutdownNowDeliberatelyIgnored) {}
315	>	}};
316
317	<	joinPool(se);
318	<	}
317	>	try (PoolCleaner cleaner = cleaner(p, done)) {
318	>	for (int i = p.getCorePoolSize(); i--> 0; ) {
319	>	switch (rnd.nextInt(4)) {
320	>	case 0: p.execute(r); break;
321	>	case 1: assertFalse(p.submit(r).isDone()); break;
322	>	case 2: assertFalse(p.submit(r, Boolean.TRUE).isDone()); break;
323	>	case 3: assertFalse(p.submit(c).isDone()); break;
324	>	}
325	>	}
326
327	<	/**
328	<	* schedule throws RejectedExecutionException if shutdown
269	<	*/
270	<	public void testSchedule2_RejectedExecutionException() {
271	<	CustomExecutor se = new CustomExecutor(1);
272	<	try {
273	<	se.shutdown();
274	<	se.schedule(new NoOpCallable(),
275	<	MEDIUM_DELAY_MS, MILLISECONDS);
276	<	shouldThrow();
277	<	} catch (RejectedExecutionException success) {
278	<	} catch (SecurityException ok) {
279	<	}
280	<	joinPool(se);
281	<	}
327	>	// ScheduledThreadPoolExecutor has an unbounded queue, so never saturated.
328	>	await(threadsStarted);
329
330	<	/**
331	<	* schedule callable throws RejectedExecutionException if shutdown
332	<	*/
333	<	public void testSchedule3_RejectedExecutionException() {
334	<	CustomExecutor se = new CustomExecutor(1);
335	<	try {
336	<	se.shutdown();
290	<	se.schedule(new NoOpCallable(),
291	<	MEDIUM_DELAY_MS, MILLISECONDS);
292	<	shouldThrow();
293	<	} catch (RejectedExecutionException success) {
294	<	} catch (SecurityException ok) {
295	<	}
296	<	joinPool(se);
297	<	}
330	>	if (rnd.nextBoolean())
331	>	p.shutdownNow();
332	>	else
333	>	p.shutdown();
334	>	// Pool is shutdown, but not yet terminated
335	>	assertTaskSubmissionsAreRejected(p);
336	>	assertFalse(p.isTerminated());
337
338	<	/**
339	<	* scheduleAtFixedRate throws RejectedExecutionException if shutdown
301	<	*/
302	<	public void testScheduleAtFixedRate1_RejectedExecutionException() {
303	<	CustomExecutor se = new CustomExecutor(1);
304	<	try {
305	<	se.shutdown();
306	<	se.scheduleAtFixedRate(new NoOpRunnable(),
307	<	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS);
308	<	shouldThrow();
309	<	} catch (RejectedExecutionException success) {
310	<	} catch (SecurityException ok) {
311	<	}
312	<	joinPool(se);
313	<	}
338	>	done.countDown();   // release blocking tasks
339	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
340
341	<	/**
316	<	* scheduleWithFixedDelay throws RejectedExecutionException if shutdown
317	<	*/
318	<	public void testScheduleWithFixedDelay1_RejectedExecutionException() {
319	<	CustomExecutor se = new CustomExecutor(1);
320	<	try {
321	<	se.shutdown();
322	<	se.scheduleWithFixedDelay(new NoOpRunnable(),
323	<	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS);
324	<	shouldThrow();
325	<	} catch (RejectedExecutionException success) {
326	<	} catch (SecurityException ok) {
341	>	assertTaskSubmissionsAreRejected(p);
342		}
343	<	joinPool(se);
343	>	assertEquals(p.getCorePoolSize(), p.getCompletedTaskCount());
344		}
345
346		/**
#	Line 333 | Line 348 | public class ScheduledExecutorSubclassTe
348		* thread becomes active
349		*/
350		public void testGetActiveCount() throws InterruptedException {
336	–	final ThreadPoolExecutor p = new CustomExecutor(2);
337	–	final CountDownLatch threadStarted = new CountDownLatch(1);
351		final CountDownLatch done = new CountDownLatch(1);
352	<	try {
352	>	final ThreadPoolExecutor p = new CustomExecutor(2);
353	>	try (PoolCleaner cleaner = cleaner(p, done)) {
354	>	final CountDownLatch threadStarted = new CountDownLatch(1);
355		assertEquals(0, p.getActiveCount());
356		p.execute(new CheckedRunnable() {
357		public void realRun() throws InterruptedException {
358		threadStarted.countDown();
359		assertEquals(1, p.getActiveCount());
360	<	done.await();
360	>	await(done);
361		}});
362	<	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
362	>	await(threadStarted);
363		assertEquals(1, p.getActiveCount());
349	–	} finally {
350	–	done.countDown();
351	–	joinPool(p);
364		}
365		}
366
#	Line 358 | Line 370 | public class ScheduledExecutorSubclassTe
370		*/
371		public void testGetCompletedTaskCount() throws InterruptedException {
372		final ThreadPoolExecutor p = new CustomExecutor(2);
373	<	final CountDownLatch threadStarted = new CountDownLatch(1);
374	<	final CountDownLatch threadProceed = new CountDownLatch(1);
375	<	final CountDownLatch threadDone = new CountDownLatch(1);
376	<	try {
373	>	try (PoolCleaner cleaner = cleaner(p)) {
374	>	final CountDownLatch threadStarted = new CountDownLatch(1);
375	>	final CountDownLatch threadProceed = new CountDownLatch(1);
376	>	final CountDownLatch threadDone = new CountDownLatch(1);
377		assertEquals(0, p.getCompletedTaskCount());
378		p.execute(new CheckedRunnable() {
379		public void realRun() throws InterruptedException {
380		threadStarted.countDown();
381		assertEquals(0, p.getCompletedTaskCount());
382	<	threadProceed.await();
382	>	await(threadProceed);
383		threadDone.countDown();
384		}});
385		await(threadStarted);
386		assertEquals(0, p.getCompletedTaskCount());
387		threadProceed.countDown();
388	<	threadDone.await();
388	>	await(threadDone);
389		long startTime = System.nanoTime();
390		while (p.getCompletedTaskCount() != 1) {
391		if (millisElapsedSince(startTime) > LONG_DELAY_MS)
392		fail("timed out");
393		Thread.yield();
394		}
383	–	} finally {
384	–	joinPool(p);
395		}
396		}
397
#	Line 389 | Line 399 | public class ScheduledExecutorSubclassTe
399		* getCorePoolSize returns size given in constructor if not otherwise set
400		*/
401		public void testGetCorePoolSize() {
402	<	CustomExecutor p = new CustomExecutor(1);
403	<	assertEquals(1, p.getCorePoolSize());
404	<	joinPool(p);
402	>	final CustomExecutor p = new CustomExecutor(1);
403	>	try (PoolCleaner cleaner = cleaner(p)) {
404	>	assertEquals(1, p.getCorePoolSize());
405	>	}
406		}
407
408		/**
#	Line 400 | Line 411 | public class ScheduledExecutorSubclassTe
411		*/
412		public void testGetLargestPoolSize() throws InterruptedException {
413		final int THREADS = 3;
403	–	final ThreadPoolExecutor p = new CustomExecutor(THREADS);
404	–	final CountDownLatch threadsStarted = new CountDownLatch(THREADS);
414		final CountDownLatch done = new CountDownLatch(1);
415	<	try {
415	>	final ThreadPoolExecutor p = new CustomExecutor(THREADS);
416	>	try (PoolCleaner cleaner = cleaner(p, done)) {
417	>	final CountDownLatch threadsStarted = new CountDownLatch(THREADS);
418		assertEquals(0, p.getLargestPoolSize());
419		for (int i = 0; i < THREADS; i++)
420		p.execute(new CheckedRunnable() {
421		public void realRun() throws InterruptedException {
422		threadsStarted.countDown();
423	<	done.await();
423	>	await(done);
424		assertEquals(THREADS, p.getLargestPoolSize());
425		}});
426	<	assertTrue(threadsStarted.await(SMALL_DELAY_MS, MILLISECONDS));
416	<	assertEquals(THREADS, p.getLargestPoolSize());
417	<	} finally {
418	<	done.countDown();
419	<	joinPool(p);
426	>	await(threadsStarted);
427		assertEquals(THREADS, p.getLargestPoolSize());
428		}
429	+	assertEquals(THREADS, p.getLargestPoolSize());
430		}
431
432		/**
#	Line 426 | Line 434 | public class ScheduledExecutorSubclassTe
434		* become active
435		*/
436		public void testGetPoolSize() throws InterruptedException {
429	–	final ThreadPoolExecutor p = new CustomExecutor(1);
430	–	final CountDownLatch threadStarted = new CountDownLatch(1);
437		final CountDownLatch done = new CountDownLatch(1);
438	<	try {
438	>	final ThreadPoolExecutor p = new CustomExecutor(1);
439	>	try (PoolCleaner cleaner = cleaner(p, done)) {
440	>	final CountDownLatch threadStarted = new CountDownLatch(1);
441		assertEquals(0, p.getPoolSize());
442		p.execute(new CheckedRunnable() {
443		public void realRun() throws InterruptedException {
444		threadStarted.countDown();
445		assertEquals(1, p.getPoolSize());
446	<	done.await();
446	>	await(done);
447		}});
448	<	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
448	>	await(threadStarted);
449		assertEquals(1, p.getPoolSize());
442	–	} finally {
443	–	done.countDown();
444	–	joinPool(p);
450		}
451		}
452
#	Line 450 | Line 455 | public class ScheduledExecutorSubclassTe
455		* submitted
456		*/
457		public void testGetTaskCount() throws InterruptedException {
458	<	final ThreadPoolExecutor p = new CustomExecutor(1);
454	<	final CountDownLatch threadStarted = new CountDownLatch(1);
458	>	final int TASKS = 3;
459		final CountDownLatch done = new CountDownLatch(1);
460	<	final int TASKS = 5;
461	<	try {
460	>	final ThreadPoolExecutor p = new CustomExecutor(1);
461	>	try (PoolCleaner cleaner = cleaner(p, done)) {
462	>	final CountDownLatch threadStarted = new CountDownLatch(1);
463		assertEquals(0, p.getTaskCount());
464	<	for (int i = 0; i < TASKS; i++)
464	>	assertEquals(0, p.getCompletedTaskCount());
465	>	p.execute(new CheckedRunnable() {
466	>	public void realRun() throws InterruptedException {
467	>	threadStarted.countDown();
468	>	await(done);
469	>	}});
470	>	await(threadStarted);
471	>	assertEquals(1, p.getTaskCount());
472	>	assertEquals(0, p.getCompletedTaskCount());
473	>	for (int i = 0; i < TASKS; i++) {
474	>	assertEquals(1 + i, p.getTaskCount());
475		p.execute(new CheckedRunnable() {
476		public void realRun() throws InterruptedException {
477		threadStarted.countDown();
478	<	done.await();
478	>	assertEquals(1 + TASKS, p.getTaskCount());
479	>	await(done);
480		}});
481	<	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
482	<	assertEquals(TASKS, p.getTaskCount());
483	<	} finally {
468	<	done.countDown();
469	<	joinPool(p);
481	>	}
482	>	assertEquals(1 + TASKS, p.getTaskCount());
483	>	assertEquals(0, p.getCompletedTaskCount());
484		}
485	+	assertEquals(1 + TASKS, p.getTaskCount());
486	+	assertEquals(1 + TASKS, p.getCompletedTaskCount());
487		}
488
489		/**
490		* getThreadFactory returns factory in constructor if not set
491		*/
492		public void testGetThreadFactory() {
493	<	ThreadFactory tf = new SimpleThreadFactory();
494	<	CustomExecutor p = new CustomExecutor(1, tf);
495	<	assertSame(tf, p.getThreadFactory());
496	<	joinPool(p);
493	>	final ThreadFactory threadFactory = new SimpleThreadFactory();
494	>	final CustomExecutor p = new CustomExecutor(1, threadFactory);
495	>	try (PoolCleaner cleaner = cleaner(p)) {
496	>	assertSame(threadFactory, p.getThreadFactory());
497	>	}
498		}
499
500		/**
501		* setThreadFactory sets the thread factory returned by getThreadFactory
502		*/
503		public void testSetThreadFactory() {
504	<	ThreadFactory tf = new SimpleThreadFactory();
505	<	CustomExecutor p = new CustomExecutor(1);
506	<	p.setThreadFactory(tf);
507	<	assertSame(tf, p.getThreadFactory());
508	<	joinPool(p);
504	>	final ThreadFactory threadFactory = new SimpleThreadFactory();
505	>	final CustomExecutor p = new CustomExecutor(1);
506	>	try (PoolCleaner cleaner = cleaner(p)) {
507	>	p.setThreadFactory(threadFactory);
508	>	assertSame(threadFactory, p.getThreadFactory());
509	>	}
510		}
511
512		/**
513		* setThreadFactory(null) throws NPE
514		*/
515		public void testSetThreadFactoryNull() {
516	<	CustomExecutor p = new CustomExecutor(1);
517	<	try {
518	<	p.setThreadFactory(null);
519	<	shouldThrow();
520	<	} catch (NullPointerException success) {
521	<	} finally {
504	<	joinPool(p);
516	>	final CustomExecutor p = new CustomExecutor(1);
517	>	try (PoolCleaner cleaner = cleaner(p)) {
518	>	try {
519	>	p.setThreadFactory(null);
520	>	shouldThrow();
521	>	} catch (NullPointerException success) {}
522		}
523		}
524
#	Line 509 | Line 526 | public class ScheduledExecutorSubclassTe
526		* isShutdown is false before shutdown, true after
527		*/
528		public void testIsShutdown() {
529	<	CustomExecutor p = new CustomExecutor(1);
530	<	try {
529	>	final CustomExecutor p = new CustomExecutor(1);
530	>	try (PoolCleaner cleaner = cleaner(p)) {
531		assertFalse(p.isShutdown());
515	–	}
516	–	finally {
532		try { p.shutdown(); } catch (SecurityException ok) { return; }
533	+	assertTrue(p.isShutdown());
534		}
519	–	assertTrue(p.isShutdown());
535		}
536
537		/**
538		* isTerminated is false before termination, true after
539		*/
540		public void testIsTerminated() throws InterruptedException {
526	–	final ThreadPoolExecutor p = new CustomExecutor(1);
527	–	final CountDownLatch threadStarted = new CountDownLatch(1);
541		final CountDownLatch done = new CountDownLatch(1);
542	<	assertFalse(p.isTerminated());
543	<	try {
542	>	final ThreadPoolExecutor p = new CustomExecutor(1);
543	>	try (PoolCleaner cleaner = cleaner(p)) {
544	>	final CountDownLatch threadStarted = new CountDownLatch(1);
545		p.execute(new CheckedRunnable() {
546		public void realRun() throws InterruptedException {
547		assertFalse(p.isTerminated());
548		threadStarted.countDown();
549	<	done.await();
549	>	await(done);
550		}});
551	<	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
551	>	await(threadStarted);
552	>	assertFalse(p.isTerminated());
553		assertFalse(p.isTerminating());
554		done.countDown();
540	–	} finally {
555		try { p.shutdown(); } catch (SecurityException ok) { return; }
556	+	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
557	+	assertTrue(p.isTerminated());
558		}
543	–	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
544	–	assertTrue(p.isTerminated());
559		}
560
561		/**
562		* isTerminating is not true when running or when terminated
563		*/
564		public void testIsTerminating() throws InterruptedException {
551	–	final ThreadPoolExecutor p = new CustomExecutor(1);
552	–	final CountDownLatch threadStarted = new CountDownLatch(1);
565		final CountDownLatch done = new CountDownLatch(1);
566	<	try {
566	>	final ThreadPoolExecutor p = new CustomExecutor(1);
567	>	try (PoolCleaner cleaner = cleaner(p)) {
568	>	final CountDownLatch threadStarted = new CountDownLatch(1);
569		assertFalse(p.isTerminating());
570		p.execute(new CheckedRunnable() {
571		public void realRun() throws InterruptedException {
572		assertFalse(p.isTerminating());
573		threadStarted.countDown();
574	<	done.await();
574	>	await(done);
575		}});
576	<	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
576	>	await(threadStarted);
577		assertFalse(p.isTerminating());
578		done.countDown();
565	–	} finally {
579		try { p.shutdown(); } catch (SecurityException ok) { return; }
580	+	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
581	+	assertTrue(p.isTerminated());
582	+	assertFalse(p.isTerminating());
583		}
568	–	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
569	–	assertTrue(p.isTerminated());
570	–	assertFalse(p.isTerminating());
584		}
585
586		/**
587		* getQueue returns the work queue, which contains queued tasks
588		*/
589		public void testGetQueue() throws InterruptedException {
577	–	ScheduledThreadPoolExecutor p = new CustomExecutor(1);
578	–	final CountDownLatch threadStarted = new CountDownLatch(1);
590		final CountDownLatch done = new CountDownLatch(1);
591	<	try {
591	>	final ScheduledThreadPoolExecutor p = new CustomExecutor(1);
592	>	try (PoolCleaner cleaner = cleaner(p, done)) {
593	>	final CountDownLatch threadStarted = new CountDownLatch(1);
594		ScheduledFuture[] tasks = new ScheduledFuture[5];
595		for (int i = 0; i < tasks.length; i++) {
596		Runnable r = new CheckedRunnable() {
597		public void realRun() throws InterruptedException {
598		threadStarted.countDown();
599	<	done.await();
599	>	await(done);
600		}};
601		tasks[i] = p.schedule(r, 1, MILLISECONDS);
602		}
603	<	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
603	>	await(threadStarted);
604		BlockingQueue<Runnable> q = p.getQueue();
605		assertTrue(q.contains(tasks[tasks.length - 1]));
606		assertFalse(q.contains(tasks[0]));
594	–	} finally {
595	–	done.countDown();
596	–	joinPool(p);
607		}
608		}
609
#	Line 601 | Line 611 | public class ScheduledExecutorSubclassTe
611		* remove(task) removes queued task, and fails to remove active task
612		*/
613		public void testRemove() throws InterruptedException {
604	–	final ScheduledThreadPoolExecutor p = new CustomExecutor(1);
605	–	ScheduledFuture[] tasks = new ScheduledFuture[5];
606	–	final CountDownLatch threadStarted = new CountDownLatch(1);
614		final CountDownLatch done = new CountDownLatch(1);
615	<	try {
615	>	final ScheduledThreadPoolExecutor p = new CustomExecutor(1);
616	>	try (PoolCleaner cleaner = cleaner(p, done)) {
617	>	ScheduledFuture[] tasks = new ScheduledFuture[5];
618	>	final CountDownLatch threadStarted = new CountDownLatch(1);
619		for (int i = 0; i < tasks.length; i++) {
620		Runnable r = new CheckedRunnable() {
621		public void realRun() throws InterruptedException {
622		threadStarted.countDown();
623	<	done.await();
623	>	await(done);
624		}};
625		tasks[i] = p.schedule(r, 1, MILLISECONDS);
626		}
627	<	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
627	>	await(threadStarted);
628		BlockingQueue<Runnable> q = p.getQueue();
629		assertFalse(p.remove((Runnable)tasks[0]));
630		assertTrue(q.contains((Runnable)tasks[4]));
#	Line 625 | Line 635 | public class ScheduledExecutorSubclassTe
635		assertTrue(q.contains((Runnable)tasks[3]));
636		assertTrue(p.remove((Runnable)tasks[3]));
637		assertFalse(q.contains((Runnable)tasks[3]));
628	–	} finally {
629	–	done.countDown();
630	–	joinPool(p);
638		}
639		}
640
#	Line 635 | Line 642 | public class ScheduledExecutorSubclassTe
642		* purge removes cancelled tasks from the queue
643		*/
644		public void testPurge() throws InterruptedException {
645	<	CustomExecutor p = new CustomExecutor(1);
646	<	ScheduledFuture[] tasks = new ScheduledFuture[5];
647	<	for (int i = 0; i < tasks.length; i++)
648	<	tasks[i] = p.schedule(new SmallPossiblyInterruptedRunnable(),
649	<	LONG_DELAY_MS, MILLISECONDS);
650	<	try {
645	>	final ScheduledFuture[] tasks = new ScheduledFuture[5];
646	>	final Runnable releaser = new Runnable() { public void run() {
647	>	for (ScheduledFuture task : tasks)
648	>	if (task != null) task.cancel(true); }};
649	>	final CustomExecutor p = new CustomExecutor(1);
650	>	try (PoolCleaner cleaner = cleaner(p, releaser)) {
651	>	for (int i = 0; i < tasks.length; i++)
652	>	tasks[i] = p.schedule(possiblyInterruptedRunnable(SMALL_DELAY_MS),
653	>	LONG_DELAY_MS, MILLISECONDS);
654		int max = tasks.length;
655		if (tasks[4].cancel(true)) --max;
656		if (tasks[3].cancel(true)) --max;
#	Line 652 | Line 662 | public class ScheduledExecutorSubclassTe
662		long count = p.getTaskCount();
663		if (count == max)
664		return;
665	<	} while (millisElapsedSince(startTime) < MEDIUM_DELAY_MS);
665	>	} while (millisElapsedSince(startTime) < LONG_DELAY_MS);
666		fail("Purge failed to remove cancelled tasks");
657	–	} finally {
658	–	for (ScheduledFuture task : tasks)
659	–	task.cancel(true);
660	–	joinPool(p);
667		}
668		}
669
670		/**
671	<	* shutdownNow returns a list containing tasks that were not run
671	>	* shutdownNow returns a list containing tasks that were not run,
672	>	* and those tasks are drained from the queue
673		*/
674	<	public void testShutdownNow() {
675	<	CustomExecutor p = new CustomExecutor(1);
676	<	for (int i = 0; i < 5; i++)
677	<	p.schedule(new SmallPossiblyInterruptedRunnable(),
678	<	LONG_DELAY_MS, MILLISECONDS);
674	>	public void testShutdownNow() throws InterruptedException {
675	>	final int poolSize = 2;
676	>	final int count = 5;
677	>	final AtomicInteger ran = new AtomicInteger(0);
678	>	final CustomExecutor p = new CustomExecutor(poolSize);
679	>	final CountDownLatch threadsStarted = new CountDownLatch(poolSize);
680	>	Runnable waiter = new CheckedRunnable() { public void realRun() {
681	>	threadsStarted.countDown();
682	>	try {
683	>	MILLISECONDS.sleep(LONGER_DELAY_MS);
684	>	} catch (InterruptedException success) {}
685	>	ran.getAndIncrement();
686	>	}};
687	>	for (int i = 0; i < count; i++)
688	>	p.execute(waiter);
689	>	await(threadsStarted);
690	>	assertEquals(poolSize, p.getActiveCount());
691	>	assertEquals(0, p.getCompletedTaskCount());
692	>	final List<Runnable> queuedTasks;
693		try {
694	<	List<Runnable> l = p.shutdownNow();
674	<	assertTrue(p.isShutdown());
675	<	assertEquals(5, l.size());
694	>	queuedTasks = p.shutdownNow();
695		} catch (SecurityException ok) {
696	<	// Allowed in case test doesn't have privs
678	<	} finally {
679	<	joinPool(p);
696	>	return; // Allowed in case test doesn't have privs
697		}
698	+	assertTrue(p.isShutdown());
699	+	assertTrue(p.getQueue().isEmpty());
700	+	assertEquals(count - poolSize, queuedTasks.size());
701	+	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
702	+	assertTrue(p.isTerminated());
703	+	assertEquals(poolSize, ran.get());
704	+	assertEquals(poolSize, p.getCompletedTaskCount());
705		}
706
707		/**
708	<	* In default setting, shutdown cancels periodic but not delayed
709	<	* tasks at shutdown
708	>	* shutdownNow returns a list containing tasks that were not run,
709	>	* and those tasks are drained from the queue
710		*/
711	<	public void testShutdown1() throws InterruptedException {
712	<	CustomExecutor p = new CustomExecutor(1);
713	<	assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
714	<	assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
715	<
716	<	ScheduledFuture[] tasks = new ScheduledFuture[5];
717	<	for (int i = 0; i < tasks.length; i++)
718	<	tasks[i] = p.schedule(new NoOpRunnable(),
719	<	SHORT_DELAY_MS, MILLISECONDS);
720	<	try { p.shutdown(); } catch (SecurityException ok) { return; }
721	<	BlockingQueue<Runnable> q = p.getQueue();
722	<	for (ScheduledFuture task : tasks) {
723	<	assertFalse(task.isDone());
724	<	assertFalse(task.isCancelled());
725	<	assertTrue(q.contains(task));
711	>	public void testShutdownNow_delayedTasks() throws InterruptedException {
712	>	final CustomExecutor p = new CustomExecutor(1);
713	>	List<ScheduledFuture> tasks = new ArrayList<>();
714	>	for (int i = 0; i < 3; i++) {
715	>	Runnable r = new NoOpRunnable();
716	>	tasks.add(p.schedule(r, 9, SECONDS));
717	>	tasks.add(p.scheduleAtFixedRate(r, 9, 9, SECONDS));
718	>	tasks.add(p.scheduleWithFixedDelay(r, 9, 9, SECONDS));
719	>	}
720	>	if (testImplementationDetails)
721	>	assertEquals(new HashSet(tasks), new HashSet(p.getQueue()));
722	>	final List<Runnable> queuedTasks;
723	>	try {
724	>	queuedTasks = p.shutdownNow();
725	>	} catch (SecurityException ok) {
726	>	return; // Allowed in case test doesn't have privs
727		}
728		assertTrue(p.isShutdown());
729	<	assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS));
730	<	assertTrue(p.isTerminated());
729	>	assertTrue(p.getQueue().isEmpty());
730	>	if (testImplementationDetails)
731	>	assertEquals(new HashSet(tasks), new HashSet(queuedTasks));
732	>	assertEquals(tasks.size(), queuedTasks.size());
733		for (ScheduledFuture task : tasks) {
734	<	assertTrue(task.isDone());
734	>	assertFalse(((CustomTask)task).ran);
735	>	assertFalse(task.isDone());
736		assertFalse(task.isCancelled());
737		}
738	+	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
739	+	assertTrue(p.isTerminated());
740		}
741
742		/**
743	<	* If setExecuteExistingDelayedTasksAfterShutdownPolicy is false,
744	<	* delayed tasks are cancelled at shutdown
745	<	*/
746	<	public void testShutdown2() throws InterruptedException {
747	<	CustomExecutor p = new CustomExecutor(1);
748	<	p.setExecuteExistingDelayedTasksAfterShutdownPolicy(false);
749	<	assertFalse(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
750	<	assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
751	<	ScheduledFuture[] tasks = new ScheduledFuture[5];
752	<	for (int i = 0; i < tasks.length; i++)
753	<	tasks[i] = p.schedule(new NoOpRunnable(),
754	<	SHORT_DELAY_MS, MILLISECONDS);
755	<	BlockingQueue q = p.getQueue();
756	<	assertEquals(tasks.length, q.size());
757	<	try { p.shutdown(); } catch (SecurityException ok) { return; }
758	<	assertTrue(p.isShutdown());
759	<	assertTrue(q.isEmpty());
760	<	assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS));
761	<	assertTrue(p.isTerminated());
762	<	for (ScheduledFuture task : tasks) {
763	<	assertTrue(task.isDone());
764	<	assertTrue(task.isCancelled());
743	>	* By default, periodic tasks are cancelled at shutdown.
744	>	* By default, delayed tasks keep running after shutdown.
745	>	* Check that changing the default values work:
746	>	* - setExecuteExistingDelayedTasksAfterShutdownPolicy
747	>	* - setContinueExistingPeriodicTasksAfterShutdownPolicy
748	>	*/
749	>	@SuppressWarnings("FutureReturnValueIgnored")
750	>	public void testShutdown_cancellation() throws Exception {
751	>	final int poolSize = 4;
752	>	final CustomExecutor p = new CustomExecutor(poolSize);
753	>	final BlockingQueue<Runnable> q = p.getQueue();
754	>	final ThreadLocalRandom rnd = ThreadLocalRandom.current();
755	>	final long delay = rnd.nextInt(2);
756	>	final int rounds = rnd.nextInt(1, 3);
757	>	final boolean effectiveDelayedPolicy;
758	>	final boolean effectivePeriodicPolicy;
759	>	final boolean effectiveRemovePolicy;
760	>
761	>	if (rnd.nextBoolean())
762	>	p.setExecuteExistingDelayedTasksAfterShutdownPolicy(
763	>	effectiveDelayedPolicy = rnd.nextBoolean());
764	>	else
765	>	effectiveDelayedPolicy = true;
766	>	assertEquals(effectiveDelayedPolicy,
767	>	p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
768	>
769	>	if (rnd.nextBoolean())
770	>	p.setContinueExistingPeriodicTasksAfterShutdownPolicy(
771	>	effectivePeriodicPolicy = rnd.nextBoolean());
772	>	else
773	>	effectivePeriodicPolicy = false;
774	>	assertEquals(effectivePeriodicPolicy,
775	>	p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
776	>
777	>	if (rnd.nextBoolean())
778	>	p.setRemoveOnCancelPolicy(
779	>	effectiveRemovePolicy = rnd.nextBoolean());
780	>	else
781	>	effectiveRemovePolicy = false;
782	>	assertEquals(effectiveRemovePolicy,
783	>	p.getRemoveOnCancelPolicy());
784	>
785	>	final boolean periodicTasksContinue = effectivePeriodicPolicy && rnd.nextBoolean();
786	>
787	>	// Strategy: Wedge the pool with one wave of "blocker" tasks,
788	>	// then add a second wave that waits in the queue until unblocked.
789	>	final AtomicInteger ran = new AtomicInteger(0);
790	>	final CountDownLatch poolBlocked = new CountDownLatch(poolSize);
791	>	final CountDownLatch unblock = new CountDownLatch(1);
792	>	final RuntimeException exception = new RuntimeException();
793	>
794	>	class Task implements Runnable {
795	>	public void run() {
796	>	try {
797	>	ran.getAndIncrement();
798	>	poolBlocked.countDown();
799	>	await(unblock);
800	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
801	>	}
802		}
736	–	}
803
804	<	/**
805	<	* If setContinueExistingPeriodicTasksAfterShutdownPolicy is set false,
806	<	* periodic tasks are cancelled at shutdown
807	<	*/
808	<	public void testShutdown3() throws InterruptedException {
809	<	CustomExecutor p = new CustomExecutor(1);
810	<	assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
811	<	assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
812	<	p.setContinueExistingPeriodicTasksAfterShutdownPolicy(false);
813	<	assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
814	<	assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
815	<	long initialDelay = LONG_DELAY_MS;
816	<	ScheduledFuture task =
817	<	p.scheduleAtFixedRate(new NoOpRunnable(), initialDelay,
818	<	5, MILLISECONDS);
804	>	class PeriodicTask extends Task {
805	>	PeriodicTask(int rounds) { this.rounds = rounds; }
806	>	int rounds;
807	>	public void run() {
808	>	if (--rounds == 0) super.run();
809	>	// throw exception to surely terminate this periodic task,
810	>	// but in a separate execution and in a detectable way.
811	>	if (rounds == -1) throw exception;
812	>	}
813	>	}
814	>
815	>	Runnable task = new Task();
816	>
817	>	List<Future<?>> immediates = new ArrayList<>();
818	>	List<Future<?>> delayeds   = new ArrayList<>();
819	>	List<Future<?>> periodics  = new ArrayList<>();
820	>
821	>	immediates.add(p.submit(task));
822	>	delayeds.add(p.schedule(task, delay, MILLISECONDS));
823	>	periodics.add(p.scheduleAtFixedRate(
824	>	new PeriodicTask(rounds), delay, 1, MILLISECONDS));
825	>	periodics.add(p.scheduleWithFixedDelay(
826	>	new PeriodicTask(rounds), delay, 1, MILLISECONDS));
827	>
828	>	await(poolBlocked);
829	>
830	>	assertEquals(poolSize, ran.get());
831	>	assertEquals(poolSize, p.getActiveCount());
832	>	assertTrue(q.isEmpty());
833	>
834	>	// Add second wave of tasks.
835	>	immediates.add(p.submit(task));
836	>	delayeds.add(p.schedule(task, effectiveDelayedPolicy ? delay : LONG_DELAY_MS, MILLISECONDS));
837	>	periodics.add(p.scheduleAtFixedRate(
838	>	new PeriodicTask(rounds), delay, 1, MILLISECONDS));
839	>	periodics.add(p.scheduleWithFixedDelay(
840	>	new PeriodicTask(rounds), delay, 1, MILLISECONDS));
841	>
842	>	assertEquals(poolSize, q.size());
843	>	assertEquals(poolSize, ran.get());
844	>
845	>	immediates.forEach(
846	>	f -> assertTrue(((ScheduledFuture)f).getDelay(NANOSECONDS) <= 0L));
847	>
848	>	Stream.of(immediates, delayeds, periodics).flatMap(Collection::stream)
849	>	.forEach(f -> assertFalse(f.isDone()));
850	>
851		try { p.shutdown(); } catch (SecurityException ok) { return; }
852		assertTrue(p.isShutdown());
853	<	assertTrue(p.getQueue().isEmpty());
854	<	assertTrue(task.isDone());
757	<	assertTrue(task.isCancelled());
758	<	joinPool(p);
759	<	}
853	>	assertTrue(p.isTerminating());
854	>	assertFalse(p.isTerminated());
855
856	<	/**
857	<	* if setContinueExistingPeriodicTasksAfterShutdownPolicy is true,
858	<	* periodic tasks are not cancelled at shutdown
859	<	*/
860	<	public void testShutdown4() throws InterruptedException {
861	<	CustomExecutor p = new CustomExecutor(1);
862	<	final CountDownLatch counter = new CountDownLatch(2);
863	<	try {
864	<	p.setContinueExistingPeriodicTasksAfterShutdownPolicy(true);
865	<	assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
866	<	assertTrue(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
867	<	final Runnable r = new CheckedRunnable() {
868	<	public void realRun() {
869	<	counter.countDown();
870	<	}};
871	<	ScheduledFuture task =
872	<	p.scheduleAtFixedRate(r, 1, 1, MILLISECONDS);
873	<	assertFalse(task.isDone());
874	<	assertFalse(task.isCancelled());
875	<	try { p.shutdown(); } catch (SecurityException ok) { return; }
876	<	assertFalse(task.isCancelled());
877	<	assertFalse(p.isTerminated());
878	<	assertTrue(p.isShutdown());
879	<	assertTrue(counter.await(SMALL_DELAY_MS, MILLISECONDS));
880	<	assertFalse(task.isCancelled());
881	<	assertTrue(task.cancel(false));
882	<	assertTrue(task.isDone());
883	<	assertTrue(task.isCancelled());
884	<	assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS));
885	<	assertTrue(p.isTerminated());
886	<	}
887	<	finally {
888	<	joinPool(p);
856	>	if (rnd.nextBoolean())
857	>	assertThrows(
858	>	RejectedExecutionException.class,
859	>	() -> p.submit(task),
860	>	() -> p.schedule(task, 1, SECONDS),
861	>	() -> p.scheduleAtFixedRate(
862	>	new PeriodicTask(1), 1, 1, SECONDS),
863	>	() -> p.scheduleWithFixedDelay(
864	>	new PeriodicTask(2), 1, 1, SECONDS));
865	>
866	>	assertTrue(q.contains(immediates.get(1)));
867	>	assertTrue(!effectiveDelayedPolicy
868	>	^ q.contains(delayeds.get(1)));
869	>	assertTrue(!effectivePeriodicPolicy
870	>	^ q.containsAll(periodics.subList(2, 4)));
871	>
872	>	immediates.forEach(f -> assertFalse(f.isDone()));
873	>
874	>	assertFalse(delayeds.get(0).isDone());
875	>	if (effectiveDelayedPolicy)
876	>	assertFalse(delayeds.get(1).isDone());
877	>	else
878	>	assertTrue(delayeds.get(1).isCancelled());
879	>
880	>	if (effectivePeriodicPolicy)
881	>	periodics.forEach(
882	>	f -> {
883	>	assertFalse(f.isDone());
884	>	if (!periodicTasksContinue) {
885	>	assertTrue(f.cancel(false));
886	>	assertTrue(f.isCancelled());
887	>	}
888	>	});
889	>	else {
890	>	periodics.subList(0, 2).forEach(f -> assertFalse(f.isDone()));
891	>	periodics.subList(2, 4).forEach(f -> assertTrue(f.isCancelled()));
892		}
893	+
894	+	unblock.countDown();    // Release all pool threads
895	+
896	+	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
897	+	assertFalse(p.isTerminating());
898	+	assertTrue(p.isTerminated());
899	+
900	+	assertTrue(q.isEmpty());
901	+
902	+	Stream.of(immediates, delayeds, periodics).flatMap(Collection::stream)
903	+	.forEach(f -> assertTrue(f.isDone()));
904	+
905	+	for (Future<?> f : immediates) assertNull(f.get());
906	+
907	+	assertNull(delayeds.get(0).get());
908	+	if (effectiveDelayedPolicy)
909	+	assertNull(delayeds.get(1).get());
910	+	else
911	+	assertTrue(delayeds.get(1).isCancelled());
912	+
913	+	if (periodicTasksContinue)
914	+	periodics.forEach(
915	+	f -> {
916	+	try { f.get(); }
917	+	catch (ExecutionException success) {
918	+	assertSame(exception, success.getCause());
919	+	}
920	+	catch (Throwable fail) { threadUnexpectedException(fail); }
921	+	});
922	+	else
923	+	periodics.forEach(f -> assertTrue(f.isCancelled()));
924	+
925	+	assertEquals(poolSize + 1
926	+	+ (effectiveDelayedPolicy ? 1 : 0)
927	+	+ (periodicTasksContinue ? 2 : 0),
928	+	ran.get());
929		}
930
931		/**
932		* completed submit of callable returns result
933		*/
934		public void testSubmitCallable() throws Exception {
935	<	ExecutorService e = new CustomExecutor(2);
936	<	try {
935	>	final ExecutorService e = new CustomExecutor(2);
936	>	try (PoolCleaner cleaner = cleaner(e)) {
937		Future<String> future = e.submit(new StringTask());
938		String result = future.get();
939		assertSame(TEST_STRING, result);
806	–	} finally {
807	–	joinPool(e);
940		}
941		}
942
#	Line 812 | Line 944 | public class ScheduledExecutorSubclassTe
944		* completed submit of runnable returns successfully
945		*/
946		public void testSubmitRunnable() throws Exception {
947	<	ExecutorService e = new CustomExecutor(2);
948	<	try {
947	>	final ExecutorService e = new CustomExecutor(2);
948	>	try (PoolCleaner cleaner = cleaner(e)) {
949		Future<?> future = e.submit(new NoOpRunnable());
950		future.get();
951		assertTrue(future.isDone());
820	–	} finally {
821	–	joinPool(e);
952		}
953		}
954
#	Line 826 | Line 956 | public class ScheduledExecutorSubclassTe
956		* completed submit of (runnable, result) returns result
957		*/
958		public void testSubmitRunnable2() throws Exception {
959	<	ExecutorService e = new CustomExecutor(2);
960	<	try {
959	>	final ExecutorService e = new CustomExecutor(2);
960	>	try (PoolCleaner cleaner = cleaner(e)) {
961		Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING);
962		String result = future.get();
963		assertSame(TEST_STRING, result);
834	–	} finally {
835	–	joinPool(e);
964		}
965		}
966
#	Line 840 | Line 968 | public class ScheduledExecutorSubclassTe
968		* invokeAny(null) throws NPE
969		*/
970		public void testInvokeAny1() throws Exception {
971	<	ExecutorService e = new CustomExecutor(2);
972	<	try {
973	<	e.invokeAny(null);
974	<	shouldThrow();
975	<	} catch (NullPointerException success) {
976	<	} finally {
849	<	joinPool(e);
971	>	final ExecutorService e = new CustomExecutor(2);
972	>	try (PoolCleaner cleaner = cleaner(e)) {
973	>	try {
974	>	e.invokeAny(null);
975	>	shouldThrow();
976	>	} catch (NullPointerException success) {}
977		}
978		}
979
980		/**
981	<	* invokeAny(empty collection) throws IAE
981	>	* invokeAny(empty collection) throws IllegalArgumentException
982		*/
983		public void testInvokeAny2() throws Exception {
984	<	ExecutorService e = new CustomExecutor(2);
985	<	try {
986	<	e.invokeAny(new ArrayList<Callable<String>>());
987	<	shouldThrow();
988	<	} catch (IllegalArgumentException success) {
989	<	} finally {
863	<	joinPool(e);
984	>	final ExecutorService e = new CustomExecutor(2);
985	>	try (PoolCleaner cleaner = cleaner(e)) {
986	>	try {
987	>	e.invokeAny(new ArrayList<Callable<String>>());
988	>	shouldThrow();
989	>	} catch (IllegalArgumentException success) {}
990		}
991		}
992
#	Line 868 | Line 994 | public class ScheduledExecutorSubclassTe
994		* invokeAny(c) throws NPE if c has null elements
995		*/
996		public void testInvokeAny3() throws Exception {
997	<	CountDownLatch latch = new CountDownLatch(1);
998	<	ExecutorService e = new CustomExecutor(2);
999	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1000	<	l.add(latchAwaitingStringTask(latch));
1001	<	l.add(null);
1002	<	try {
1003	<	e.invokeAny(l);
1004	<	shouldThrow();
1005	<	} catch (NullPointerException success) {
1006	<	} finally {
997	>	final CountDownLatch latch = new CountDownLatch(1);
998	>	final ExecutorService e = new CustomExecutor(2);
999	>	try (PoolCleaner cleaner = cleaner(e)) {
1000	>	List<Callable<String>> l = new ArrayList<>();
1001	>	l.add(latchAwaitingStringTask(latch));
1002	>	l.add(null);
1003	>	try {
1004	>	e.invokeAny(l);
1005	>	shouldThrow();
1006	>	} catch (NullPointerException success) {}
1007		latch.countDown();
882	–	joinPool(e);
1008		}
1009		}
1010
#	Line 887 | Line 1012 | public class ScheduledExecutorSubclassTe
1012		* invokeAny(c) throws ExecutionException if no task completes
1013		*/
1014		public void testInvokeAny4() throws Exception {
1015	<	ExecutorService e = new CustomExecutor(2);
1016	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1017	<	l.add(new NPETask());
1018	<	try {
1019	<	e.invokeAny(l);
1020	<	shouldThrow();
1021	<	} catch (ExecutionException success) {
1022	<	assertTrue(success.getCause() instanceof NullPointerException);
1023	<	} finally {
1024	<	joinPool(e);
1015	>	final ExecutorService e = new CustomExecutor(2);
1016	>	try (PoolCleaner cleaner = cleaner(e)) {
1017	>	List<Callable<String>> l = new ArrayList<>();
1018	>	l.add(new NPETask());
1019	>	try {
1020	>	e.invokeAny(l);
1021	>	shouldThrow();
1022	>	} catch (ExecutionException success) {
1023	>	assertTrue(success.getCause() instanceof NullPointerException);
1024	>	}
1025		}
1026		}
1027
#	Line 904 | Line 1029 | public class ScheduledExecutorSubclassTe
1029		* invokeAny(c) returns result of some task
1030		*/
1031		public void testInvokeAny5() throws Exception {
1032	<	ExecutorService e = new CustomExecutor(2);
1033	<	try {
1034	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1032	>	final ExecutorService e = new CustomExecutor(2);
1033	>	try (PoolCleaner cleaner = cleaner(e)) {
1034	>	List<Callable<String>> l = new ArrayList<>();
1035		l.add(new StringTask());
1036		l.add(new StringTask());
1037		String result = e.invokeAny(l);
1038		assertSame(TEST_STRING, result);
914	–	} finally {
915	–	joinPool(e);
1039		}
1040		}
1041
#	Line 920 | Line 1043 | public class ScheduledExecutorSubclassTe
1043		* invokeAll(null) throws NPE
1044		*/
1045		public void testInvokeAll1() throws Exception {
1046	<	ExecutorService e = new CustomExecutor(2);
1047	<	try {
1048	<	e.invokeAll(null);
1049	<	shouldThrow();
1050	<	} catch (NullPointerException success) {
1051	<	} finally {
929	<	joinPool(e);
1046	>	final ExecutorService e = new CustomExecutor(2);
1047	>	try (PoolCleaner cleaner = cleaner(e)) {
1048	>	try {
1049	>	e.invokeAll(null);
1050	>	shouldThrow();
1051	>	} catch (NullPointerException success) {}
1052		}
1053		}
1054
1055		/**
1056	<	* invokeAll(empty collection) returns empty collection
1056	>	* invokeAll(empty collection) returns empty list
1057		*/
1058		public void testInvokeAll2() throws Exception {
1059	<	ExecutorService e = new CustomExecutor(2);
1060	<	try {
1061	<	List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>());
1059	>	final ExecutorService e = new CustomExecutor(2);
1060	>	final Collection<Callable<String>> emptyCollection
1061	>	= Collections.emptyList();
1062	>	try (PoolCleaner cleaner = cleaner(e)) {
1063	>	List<Future<String>> r = e.invokeAll(emptyCollection);
1064		assertTrue(r.isEmpty());
941	–	} finally {
942	–	joinPool(e);
1065		}
1066		}
1067
#	Line 947 | Line 1069 | public class ScheduledExecutorSubclassTe
1069		* invokeAll(c) throws NPE if c has null elements
1070		*/
1071		public void testInvokeAll3() throws Exception {
1072	<	ExecutorService e = new CustomExecutor(2);
1073	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1074	<	l.add(new StringTask());
1075	<	l.add(null);
1076	<	try {
1077	<	e.invokeAll(l);
1078	<	shouldThrow();
1079	<	} catch (NullPointerException success) {
1080	<	} finally {
959	<	joinPool(e);
1072	>	final ExecutorService e = new CustomExecutor(2);
1073	>	try (PoolCleaner cleaner = cleaner(e)) {
1074	>	List<Callable<String>> l = new ArrayList<>();
1075	>	l.add(new StringTask());
1076	>	l.add(null);
1077	>	try {
1078	>	e.invokeAll(l);
1079	>	shouldThrow();
1080	>	} catch (NullPointerException success) {}
1081		}
1082		}
1083
#	Line 964 | Line 1085 | public class ScheduledExecutorSubclassTe
1085		* get of invokeAll(c) throws exception on failed task
1086		*/
1087		public void testInvokeAll4() throws Exception {
1088	<	ExecutorService e = new CustomExecutor(2);
1089	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1090	<	l.add(new NPETask());
1091	<	List<Future<String>> futures = e.invokeAll(l);
1092	<	assertEquals(1, futures.size());
1093	<	try {
1094	<	futures.get(0).get();
1095	<	shouldThrow();
1096	<	} catch (ExecutionException success) {
1097	<	assertTrue(success.getCause() instanceof NullPointerException);
1098	<	} finally {
1099	<	joinPool(e);
1088	>	final ExecutorService e = new CustomExecutor(2);
1089	>	try (PoolCleaner cleaner = cleaner(e)) {
1090	>	List<Callable<String>> l = new ArrayList<>();
1091	>	l.add(new NPETask());
1092	>	List<Future<String>> futures = e.invokeAll(l);
1093	>	assertEquals(1, futures.size());
1094	>	try {
1095	>	futures.get(0).get();
1096	>	shouldThrow();
1097	>	} catch (ExecutionException success) {
1098	>	assertTrue(success.getCause() instanceof NullPointerException);
1099	>	}
1100		}
1101		}
1102
#	Line 983 | Line 1104 | public class ScheduledExecutorSubclassTe
1104		* invokeAll(c) returns results of all completed tasks
1105		*/
1106		public void testInvokeAll5() throws Exception {
1107	<	ExecutorService e = new CustomExecutor(2);
1108	<	try {
1109	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1107	>	final ExecutorService e = new CustomExecutor(2);
1108	>	try (PoolCleaner cleaner = cleaner(e)) {
1109	>	List<Callable<String>> l = new ArrayList<>();
1110		l.add(new StringTask());
1111		l.add(new StringTask());
1112		List<Future<String>> futures = e.invokeAll(l);
1113		assertEquals(2, futures.size());
1114		for (Future<String> future : futures)
1115		assertSame(TEST_STRING, future.get());
995	–	} finally {
996	–	joinPool(e);
1116		}
1117		}
1118
#	Line 1001 | Line 1120 | public class ScheduledExecutorSubclassTe
1120		* timed invokeAny(null) throws NPE
1121		*/
1122		public void testTimedInvokeAny1() throws Exception {
1123	<	ExecutorService e = new CustomExecutor(2);
1124	<	try {
1125	<	e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS);
1126	<	shouldThrow();
1127	<	} catch (NullPointerException success) {
1128	<	} finally {
1010	<	joinPool(e);
1123	>	final ExecutorService e = new CustomExecutor(2);
1124	>	try (PoolCleaner cleaner = cleaner(e)) {
1125	>	try {
1126	>	e.invokeAny(null, randomTimeout(), randomTimeUnit());
1127	>	shouldThrow();
1128	>	} catch (NullPointerException success) {}
1129		}
1130		}
1131
#	Line 1015 | Line 1133 | public class ScheduledExecutorSubclassTe
1133		* timed invokeAny(,,null) throws NPE
1134		*/
1135		public void testTimedInvokeAnyNullTimeUnit() throws Exception {
1136	<	ExecutorService e = new CustomExecutor(2);
1137	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1138	<	l.add(new StringTask());
1139	<	try {
1140	<	e.invokeAny(l, MEDIUM_DELAY_MS, null);
1141	<	shouldThrow();
1142	<	} catch (NullPointerException success) {
1143	<	} finally {
1026	<	joinPool(e);
1136	>	final ExecutorService e = new CustomExecutor(2);
1137	>	try (PoolCleaner cleaner = cleaner(e)) {
1138	>	List<Callable<String>> l = new ArrayList<>();
1139	>	l.add(new StringTask());
1140	>	try {
1141	>	e.invokeAny(l, randomTimeout(), null);
1142	>	shouldThrow();
1143	>	} catch (NullPointerException success) {}
1144		}
1145		}
1146
1147		/**
1148	<	* timed invokeAny(empty collection) throws IAE
1148	>	* timed invokeAny(empty collection) throws IllegalArgumentException
1149		*/
1150		public void testTimedInvokeAny2() throws Exception {
1151	<	ExecutorService e = new CustomExecutor(2);
1152	<	try {
1153	<	e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
1154	<	shouldThrow();
1155	<	} catch (IllegalArgumentException success) {
1156	<	} finally {
1157	<	joinPool(e);
1151	>	final ExecutorService e = new CustomExecutor(2);
1152	>	final Collection<Callable<String>> emptyCollection
1153	>	= Collections.emptyList();
1154	>	try (PoolCleaner cleaner = cleaner(e)) {
1155	>	try {
1156	>	e.invokeAny(emptyCollection, randomTimeout(), randomTimeUnit());
1157	>	shouldThrow();
1158	>	} catch (IllegalArgumentException success) {}
1159		}
1160		}
1161
#	Line 1046 | Line 1164 | public class ScheduledExecutorSubclassTe
1164		*/
1165		public void testTimedInvokeAny3() throws Exception {
1166		CountDownLatch latch = new CountDownLatch(1);
1167	<	ExecutorService e = new CustomExecutor(2);
1168	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1169	<	l.add(latchAwaitingStringTask(latch));
1170	<	l.add(null);
1171	<	try {
1172	<	e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1173	<	shouldThrow();
1174	<	} catch (NullPointerException success) {
1175	<	} finally {
1167	>	final ExecutorService e = new CustomExecutor(2);
1168	>	try (PoolCleaner cleaner = cleaner(e)) {
1169	>	List<Callable<String>> l = new ArrayList<>();
1170	>	l.add(latchAwaitingStringTask(latch));
1171	>	l.add(null);
1172	>	try {
1173	>	e.invokeAny(l, randomTimeout(), randomTimeUnit());
1174	>	shouldThrow();
1175	>	} catch (NullPointerException success) {}
1176		latch.countDown();
1059	–	joinPool(e);
1177		}
1178		}
1179
#	Line 1064 | Line 1181 | public class ScheduledExecutorSubclassTe
1181		* timed invokeAny(c) throws ExecutionException if no task completes
1182		*/
1183		public void testTimedInvokeAny4() throws Exception {
1184	<	ExecutorService e = new CustomExecutor(2);
1185	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1186	<	l.add(new NPETask());
1187	<	try {
1188	<	e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1189	<	shouldThrow();
1190	<	} catch (ExecutionException success) {
1191	<	assertTrue(success.getCause() instanceof NullPointerException);
1192	<	} finally {
1193	<	joinPool(e);
1184	>	final ExecutorService e = new CustomExecutor(2);
1185	>	try (PoolCleaner cleaner = cleaner(e)) {
1186	>	long startTime = System.nanoTime();
1187	>	List<Callable<String>> l = new ArrayList<>();
1188	>	l.add(new NPETask());
1189	>	try {
1190	>	e.invokeAny(l, LONG_DELAY_MS, MILLISECONDS);
1191	>	shouldThrow();
1192	>	} catch (ExecutionException success) {
1193	>	assertTrue(success.getCause() instanceof NullPointerException);
1194	>	}
1195	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1196		}
1197		}
1198
#	Line 1081 | Line 1200 | public class ScheduledExecutorSubclassTe
1200		* timed invokeAny(c) returns result of some task
1201		*/
1202		public void testTimedInvokeAny5() throws Exception {
1203	<	ExecutorService e = new CustomExecutor(2);
1204	<	try {
1205	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1203	>	final ExecutorService e = new CustomExecutor(2);
1204	>	try (PoolCleaner cleaner = cleaner(e)) {
1205	>	long startTime = System.nanoTime();
1206	>	List<Callable<String>> l = new ArrayList<>();
1207		l.add(new StringTask());
1208		l.add(new StringTask());
1209	<	String result = e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1209	>	String result = e.invokeAny(l, LONG_DELAY_MS, MILLISECONDS);
1210		assertSame(TEST_STRING, result);
1211	<	} finally {
1092	<	joinPool(e);
1211	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1212		}
1213		}
1214
1215		/**
1216	<	* timed invokeAll(null) throws NPE
1216	>	* timed invokeAll(null) throws NullPointerException
1217		*/
1218		public void testTimedInvokeAll1() throws Exception {
1219	<	ExecutorService e = new CustomExecutor(2);
1220	<	try {
1221	<	e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS);
1222	<	shouldThrow();
1223	<	} catch (NullPointerException success) {
1224	<	} finally {
1106	<	joinPool(e);
1219	>	final ExecutorService e = new CustomExecutor(2);
1220	>	try (PoolCleaner cleaner = cleaner(e)) {
1221	>	try {
1222	>	e.invokeAll(null, randomTimeout(), randomTimeUnit());
1223	>	shouldThrow();
1224	>	} catch (NullPointerException success) {}
1225		}
1226		}
1227
1228		/**
1229	<	* timed invokeAll(,,null) throws NPE
1229	>	* timed invokeAll(,,null) throws NullPointerException
1230		*/
1231		public void testTimedInvokeAllNullTimeUnit() throws Exception {
1232	<	ExecutorService e = new CustomExecutor(2);
1233	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1234	<	l.add(new StringTask());
1235	<	try {
1236	<	e.invokeAll(l, MEDIUM_DELAY_MS, null);
1237	<	shouldThrow();
1238	<	} catch (NullPointerException success) {
1239	<	} finally {
1122	<	joinPool(e);
1232	>	final ExecutorService e = new CustomExecutor(2);
1233	>	try (PoolCleaner cleaner = cleaner(e)) {
1234	>	List<Callable<String>> l = new ArrayList<>();
1235	>	l.add(new StringTask());
1236	>	try {
1237	>	e.invokeAll(l, randomTimeout(), null);
1238	>	shouldThrow();
1239	>	} catch (NullPointerException success) {}
1240		}
1241		}
1242
1243		/**
1244	<	* timed invokeAll(empty collection) returns empty collection
1244	>	* timed invokeAll(empty collection) returns empty list
1245		*/
1246		public void testTimedInvokeAll2() throws Exception {
1247	<	ExecutorService e = new CustomExecutor(2);
1248	<	try {
1249	<	List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
1247	>	final ExecutorService e = new CustomExecutor(2);
1248	>	final Collection<Callable<String>> emptyCollection
1249	>	= Collections.emptyList();
1250	>	try (PoolCleaner cleaner = cleaner(e)) {
1251	>	List<Future<String>> r =
1252	>	e.invokeAll(emptyCollection, randomTimeout(), randomTimeUnit());
1253		assertTrue(r.isEmpty());
1134	–	} finally {
1135	–	joinPool(e);
1254		}
1255		}
1256
#	Line 1140 | Line 1258 | public class ScheduledExecutorSubclassTe
1258		* timed invokeAll(c) throws NPE if c has null elements
1259		*/
1260		public void testTimedInvokeAll3() throws Exception {
1261	<	ExecutorService e = new CustomExecutor(2);
1262	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1263	<	l.add(new StringTask());
1264	<	l.add(null);
1265	<	try {
1266	<	e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1267	<	shouldThrow();
1268	<	} catch (NullPointerException success) {
1269	<	} finally {
1152	<	joinPool(e);
1261	>	final ExecutorService e = new CustomExecutor(2);
1262	>	try (PoolCleaner cleaner = cleaner(e)) {
1263	>	List<Callable<String>> l = new ArrayList<>();
1264	>	l.add(new StringTask());
1265	>	l.add(null);
1266	>	try {
1267	>	e.invokeAll(l, randomTimeout(), randomTimeUnit());
1268	>	shouldThrow();
1269	>	} catch (NullPointerException success) {}
1270		}
1271		}
1272
#	Line 1157 | Line 1274 | public class ScheduledExecutorSubclassTe
1274		* get of element of invokeAll(c) throws exception on failed task
1275		*/
1276		public void testTimedInvokeAll4() throws Exception {
1277	<	ExecutorService e = new CustomExecutor(2);
1278	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1279	<	l.add(new NPETask());
1280	<	List<Future<String>> futures =
1281	<	e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1282	<	assertEquals(1, futures.size());
1283	<	try {
1284	<	futures.get(0).get();
1285	<	shouldThrow();
1286	<	} catch (ExecutionException success) {
1287	<	assertTrue(success.getCause() instanceof NullPointerException);
1288	<	} finally {
1289	<	joinPool(e);
1277	>	final ExecutorService e = new CustomExecutor(2);
1278	>	final Collection<Callable<String>> c = new ArrayList<>();
1279	>	c.add(new NPETask());
1280	>	try (PoolCleaner cleaner = cleaner(e)) {
1281	>	List<Future<String>> futures =
1282	>	e.invokeAll(c, LONG_DELAY_MS, MILLISECONDS);
1283	>	assertEquals(1, futures.size());
1284	>	try {
1285	>	futures.get(0).get();
1286	>	shouldThrow();
1287	>	} catch (ExecutionException success) {
1288	>	assertTrue(success.getCause() instanceof NullPointerException);
1289	>	}
1290		}
1291		}
1292
#	Line 1177 | Line 1294 | public class ScheduledExecutorSubclassTe
1294		* timed invokeAll(c) returns results of all completed tasks
1295		*/
1296		public void testTimedInvokeAll5() throws Exception {
1297	<	ExecutorService e = new CustomExecutor(2);
1298	<	try {
1299	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1297	>	final ExecutorService e = new CustomExecutor(2);
1298	>	try (PoolCleaner cleaner = cleaner(e)) {
1299	>	List<Callable<String>> l = new ArrayList<>();
1300		l.add(new StringTask());
1301		l.add(new StringTask());
1302		List<Future<String>> futures =
1303	<	e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1303	>	e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS);
1304		assertEquals(2, futures.size());
1305		for (Future<String> future : futures)
1306		assertSame(TEST_STRING, future.get());
1190	–	} finally {
1191	–	joinPool(e);
1307		}
1308		}
1309
#	Line 1196 | Line 1311 | public class ScheduledExecutorSubclassTe
1311		* timed invokeAll(c) cancels tasks not completed by timeout
1312		*/
1313		public void testTimedInvokeAll6() throws Exception {
1314	<	ExecutorService e = new CustomExecutor(2);
1315	<	try {
1316	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1317	<	l.add(new StringTask());
1318	<	l.add(Executors.callable(new MediumPossiblyInterruptedRunnable(), TEST_STRING));
1319	<	l.add(new StringTask());
1320	<	List<Future<String>> futures =
1321	<	e.invokeAll(l, SHORT_DELAY_MS, MILLISECONDS);
1322	<	assertEquals(l.size(), futures.size());
1323	<	for (Future future : futures)
1324	<	assertTrue(future.isDone());
1325	<	assertFalse(futures.get(0).isCancelled());
1326	<	assertTrue(futures.get(1).isCancelled());
1327	<	} finally {
1328	<	joinPool(e);
1314	>	for (long timeout = timeoutMillis();;) {
1315	>	final CountDownLatch done = new CountDownLatch(1);
1316	>	final Callable<String> waiter = new CheckedCallable<String>() {
1317	>	public String realCall() {
1318	>	try { done.await(LONG_DELAY_MS, MILLISECONDS); }
1319	>	catch (InterruptedException ok) {}
1320	>	return "1"; }};
1321	>	final ExecutorService p = new CustomExecutor(2);
1322	>	try (PoolCleaner cleaner = cleaner(p, done)) {
1323	>	List<Callable<String>> tasks = new ArrayList<>();
1324	>	tasks.add(new StringTask("0"));
1325	>	tasks.add(waiter);
1326	>	tasks.add(new StringTask("2"));
1327	>	long startTime = System.nanoTime();
1328	>	List<Future<String>> futures =
1329	>	p.invokeAll(tasks, timeout, MILLISECONDS);
1330	>	assertEquals(tasks.size(), futures.size());
1331	>	assertTrue(millisElapsedSince(startTime) >= timeout);
1332	>	for (Future future : futures)
1333	>	assertTrue(future.isDone());
1334	>	assertTrue(futures.get(1).isCancelled());
1335	>	try {
1336	>	assertEquals("0", futures.get(0).get());
1337	>	assertEquals("2", futures.get(2).get());
1338	>	break;
1339	>	} catch (CancellationException retryWithLongerTimeout) {
1340	>	timeout *= 2;
1341	>	if (timeout >= LONG_DELAY_MS / 2)
1342	>	fail("expected exactly one task to be cancelled");
1343	>	}
1344	>	}
1345		}
1346		}
1347

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