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

Comparing jsr166/src/test/tck/ScheduledExecutorTest.java (file contents):
Revision 1.62 by jsr166, Sun Oct 4 08:07:31 2015 UTC vs.
Revision 1.100 by jsr166, Wed Jan 27 01:57:24 2021 UTC

#	Line 7 | Line 7
7		*/
8
9		import static java.util.concurrent.TimeUnit.MILLISECONDS;
10	+	import static java.util.concurrent.TimeUnit.NANOSECONDS;
11		import static java.util.concurrent.TimeUnit.SECONDS;
12
13		import java.util.ArrayList;
14	+	import java.util.Collection;
15	+	import java.util.Collections;
16		import java.util.HashSet;
17		import java.util.List;
18		import java.util.concurrent.BlockingQueue;
#	Line 17 | Line 20 | import java.util.concurrent.Callable;
20		import java.util.concurrent.CancellationException;
21		import java.util.concurrent.CountDownLatch;
22		import java.util.concurrent.ExecutionException;
20	–	import java.util.concurrent.Executors;
23		import java.util.concurrent.ExecutorService;
24		import java.util.concurrent.Future;
25		import java.util.concurrent.RejectedExecutionException;
26		import java.util.concurrent.ScheduledFuture;
27		import java.util.concurrent.ScheduledThreadPoolExecutor;
28		import java.util.concurrent.ThreadFactory;
29	+	import java.util.concurrent.ThreadLocalRandom;
30		import java.util.concurrent.ThreadPoolExecutor;
31	+	import java.util.concurrent.atomic.AtomicBoolean;
32		import java.util.concurrent.atomic.AtomicInteger;
33	+	import java.util.concurrent.atomic.AtomicLong;
34	+	import java.util.stream.Stream;
35
36		import junit.framework.Test;
37		import junit.framework.TestSuite;
#	Line 42 | Line 48 | public class ScheduledExecutorTest exten
48		* execute successfully executes a runnable
49		*/
50		public void testExecute() throws InterruptedException {
51	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
51	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
52		try (PoolCleaner cleaner = cleaner(p)) {
53		final CountDownLatch done = new CountDownLatch(1);
54		final Runnable task = new CheckedRunnable() {
55		public void realRun() { done.countDown(); }};
56		p.execute(task);
57	<	assertTrue(done.await(SMALL_DELAY_MS, MILLISECONDS));
57	>	await(done);
58		}
59		}
60
#	Line 56 | Line 62 | public class ScheduledExecutorTest exten
62		* delayed schedule of callable successfully executes after delay
63		*/
64		public void testSchedule1() throws Exception {
65	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
65	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
66		try (PoolCleaner cleaner = cleaner(p)) {
67		final long startTime = System.nanoTime();
68		final CountDownLatch done = new CountDownLatch(1);
69	<	Callable task = new CheckedCallable<Boolean>() {
69	>	Callable<Boolean> task = new CheckedCallable<>() {
70		public Boolean realCall() {
71		done.countDown();
72		assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
73		return Boolean.TRUE;
74		}};
75	<	Future f = p.schedule(task, timeoutMillis(), MILLISECONDS);
75	>	Future<Boolean> f = p.schedule(task, timeoutMillis(), MILLISECONDS);
76		assertSame(Boolean.TRUE, f.get());
77		assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
78	<	assertTrue(done.await(0L, MILLISECONDS));
78	>	assertEquals(0L, done.getCount());
79		}
80		}
81
#	Line 77 | Line 83 | public class ScheduledExecutorTest exten
83		* delayed schedule of runnable successfully executes after delay
84		*/
85		public void testSchedule3() throws Exception {
86	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
86	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
87		try (PoolCleaner cleaner = cleaner(p)) {
88		final long startTime = System.nanoTime();
89		final CountDownLatch done = new CountDownLatch(1);
#	Line 86 | Line 92 | public class ScheduledExecutorTest exten
92		done.countDown();
93		assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
94		}};
95	<	Future f = p.schedule(task, timeoutMillis(), MILLISECONDS);
95	>	Future<?> f = p.schedule(task, timeoutMillis(), MILLISECONDS);
96		await(done);
97		assertNull(f.get(LONG_DELAY_MS, MILLISECONDS));
98		assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
#	Line 97 | Line 103 | public class ScheduledExecutorTest exten
103		* scheduleAtFixedRate executes runnable after given initial delay
104		*/
105		public void testSchedule4() throws Exception {
106	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
106	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
107		try (PoolCleaner cleaner = cleaner(p)) {
108		final long startTime = System.nanoTime();
109		final CountDownLatch done = new CountDownLatch(1);
#	Line 106 | Line 112 | public class ScheduledExecutorTest exten
112		done.countDown();
113		assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
114		}};
115	<	ScheduledFuture f =
115	>	ScheduledFuture<?> f =
116		p.scheduleAtFixedRate(task, timeoutMillis(),
117		LONG_DELAY_MS, MILLISECONDS);
118		await(done);
#	Line 119 | Line 125 | public class ScheduledExecutorTest exten
125		* scheduleWithFixedDelay executes runnable after given initial delay
126		*/
127		public void testSchedule5() throws Exception {
128	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
128	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
129		try (PoolCleaner cleaner = cleaner(p)) {
130		final long startTime = System.nanoTime();
131		final CountDownLatch done = new CountDownLatch(1);
#	Line 128 | Line 134 | public class ScheduledExecutorTest exten
134		done.countDown();
135		assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
136		}};
137	<	ScheduledFuture f =
137	>	ScheduledFuture<?> f =
138		p.scheduleWithFixedDelay(task, timeoutMillis(),
139		LONG_DELAY_MS, MILLISECONDS);
140		await(done);
#	Line 143 | Line 149 | public class ScheduledExecutorTest exten
149		}
150
151		/**
152	<	* scheduleAtFixedRate executes series of tasks at given rate
152	>	* scheduleAtFixedRate executes series of tasks at given rate.
153	>	* Eventually, it must hold that:
154	>	*   cycles - 1 <= elapsedMillis/delay < cycles
155		*/
156		public void testFixedRateSequence() throws InterruptedException {
157	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
157	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
158		try (PoolCleaner cleaner = cleaner(p)) {
159		for (int delay = 1; delay <= LONG_DELAY_MS; delay *= 3) {
160	<	long startTime = System.nanoTime();
161	<	int cycles = 10;
160	>	final long startTime = System.nanoTime();
161	>	final int cycles = 8;
162		final CountDownLatch done = new CountDownLatch(cycles);
163	<	Runnable task = new CheckedRunnable() {
163	>	final Runnable task = new CheckedRunnable() {
164		public void realRun() { done.countDown(); }};
165	<	ScheduledFuture h =
165	>	final ScheduledFuture<?> periodicTask =
166		p.scheduleAtFixedRate(task, 0, delay, MILLISECONDS);
167	<	done.await();
168	<	h.cancel(true);
169	<	double normalizedTime =
170	<	(double) millisElapsedSince(startTime) / delay;
171	<	if (normalizedTime >= cycles - 1 &&
172	<	normalizedTime <= cycles)
167	>	final int totalDelayMillis = (cycles - 1) * delay;
168	>	await(done, totalDelayMillis + LONG_DELAY_MS);
169	>	periodicTask.cancel(true);
170	>	final long elapsedMillis = millisElapsedSince(startTime);
171	>	assertTrue(elapsedMillis >= totalDelayMillis);
172	>	if (elapsedMillis <= cycles * delay)
173		return;
174	+	// else retry with longer delay
175		}
176	<	throw new AssertionError("unexpected execution rate");
176	>	fail("unexpected execution rate");
177		}
178		}
179
180		/**
181	<	* scheduleWithFixedDelay executes series of tasks with given period
181	>	* scheduleWithFixedDelay executes series of tasks with given period.
182	>	* Eventually, it must hold that each task starts at least delay and at
183	>	* most 2 * delay after the termination of the previous task.
184		*/
185		public void testFixedDelaySequence() throws InterruptedException {
186	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
186	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
187		try (PoolCleaner cleaner = cleaner(p)) {
188		for (int delay = 1; delay <= LONG_DELAY_MS; delay *= 3) {
189	<	long startTime = System.nanoTime();
190	<	int cycles = 10;
189	>	final long startTime = System.nanoTime();
190	>	final AtomicLong previous = new AtomicLong(startTime);
191	>	final AtomicBoolean tryLongerDelay = new AtomicBoolean(false);
192	>	final int cycles = 8;
193		final CountDownLatch done = new CountDownLatch(cycles);
194	<	Runnable task = new CheckedRunnable() {
195	<	public void realRun() { done.countDown(); }};
196	<	ScheduledFuture h =
194	>	final int d = delay;
195	>	final Runnable task = new CheckedRunnable() {
196	>	public void realRun() {
197	>	long now = System.nanoTime();
198	>	long elapsedMillis
199	>	= NANOSECONDS.toMillis(now - previous.get());
200	>	if (done.getCount() == cycles) { // first execution
201	>	if (elapsedMillis >= d)
202	>	tryLongerDelay.set(true);
203	>	} else {
204	>	assertTrue(elapsedMillis >= d);
205	>	if (elapsedMillis >= 2 * d)
206	>	tryLongerDelay.set(true);
207	>	}
208	>	previous.set(now);
209	>	done.countDown();
210	>	}};
211	>	final ScheduledFuture<?> periodicTask =
212		p.scheduleWithFixedDelay(task, 0, delay, MILLISECONDS);
213	<	done.await();
214	<	h.cancel(true);
215	<	double normalizedTime =
216	<	(double) millisElapsedSince(startTime) / delay;
217	<	if (normalizedTime >= cycles - 1 &&
218	<	normalizedTime <= cycles)
213	>	final int totalDelayMillis = (cycles - 1) * delay;
214	>	await(done, totalDelayMillis + cycles * LONG_DELAY_MS);
215	>	periodicTask.cancel(true);
216	>	final long elapsedMillis = millisElapsedSince(startTime);
217	>	assertTrue(elapsedMillis >= totalDelayMillis);
218	>	if (!tryLongerDelay.get())
219		return;
220	+	// else retry with longer delay
221		}
222	<	throw new AssertionError("unexpected execution rate");
222	>	fail("unexpected execution rate");
223		}
224		}
225
226		/**
227	<	* execute(null) throws NPE
227	>	* Submitting null tasks throws NullPointerException
228		*/
229	<	public void testExecuteNull() throws InterruptedException {
230	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
229	>	public void testNullTaskSubmission() {
230	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
231		try (PoolCleaner cleaner = cleaner(p)) {
232	<	try {
204	<	p.execute(null);
205	<	shouldThrow();
206	<	} catch (NullPointerException success) {}
232	>	assertNullTaskSubmissionThrowsNullPointerException(p);
233		}
234		}
235
236		/**
237	<	* schedule(null) throws NPE
237	>	* Submitted tasks are rejected when shutdown
238		*/
239	<	public void testScheduleNull() throws InterruptedException {
239	>	public void testSubmittedTasksRejectedWhenShutdown() throws InterruptedException {
240		final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
241	<	try (PoolCleaner cleaner = cleaner(p)) {
242	<	try {
243	<	TrackedCallable callable = null;
244	<	Future f = p.schedule(callable, SHORT_DELAY_MS, MILLISECONDS);
245	<	shouldThrow();
246	<	} catch (NullPointerException success) {}
247	<	}
248	<	}
241	>	final ThreadLocalRandom rnd = ThreadLocalRandom.current();
242	>	final CountDownLatch threadsStarted = new CountDownLatch(p.getCorePoolSize());
243	>	final CountDownLatch done = new CountDownLatch(1);
244	>	final Runnable r = () -> {
245	>	threadsStarted.countDown();
246	>	for (;;) {
247	>	try {
248	>	done.await();
249	>	return;
250	>	} catch (InterruptedException shutdownNowDeliberatelyIgnored) {}
251	>	}};
252	>	final Callable<Boolean> c = () -> {
253	>	threadsStarted.countDown();
254	>	for (;;) {
255	>	try {
256	>	done.await();
257	>	return Boolean.TRUE;
258	>	} catch (InterruptedException shutdownNowDeliberatelyIgnored) {}
259	>	}};
260
261	<	/**
262	<	* execute throws RejectedExecutionException if shutdown
263	<	*/
264	<	public void testSchedule1_RejectedExecutionException() throws InterruptedException {
265	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
266	<	try (PoolCleaner cleaner = cleaner(p)) {
267	<	try {
268	<	p.shutdown();
269	<	p.schedule(new NoOpRunnable(),
233	<	MEDIUM_DELAY_MS, MILLISECONDS);
234	<	shouldThrow();
235	<	} catch (RejectedExecutionException success) {
236	<	} catch (SecurityException ok) {}
237	<	}
238	<	}
261	>	try (PoolCleaner cleaner = cleaner(p, done)) {
262	>	for (int i = p.getCorePoolSize(); i--> 0; ) {
263	>	switch (rnd.nextInt(4)) {
264	>	case 0: p.execute(r); break;
265	>	case 1: assertFalse(p.submit(r).isDone()); break;
266	>	case 2: assertFalse(p.submit(r, Boolean.TRUE).isDone()); break;
267	>	case 3: assertFalse(p.submit(c).isDone()); break;
268	>	}
269	>	}
270
271	<	/**
272	<	* schedule throws RejectedExecutionException if shutdown
242	<	*/
243	<	public void testSchedule2_RejectedExecutionException() throws InterruptedException {
244	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
245	<	try (PoolCleaner cleaner = cleaner(p)) {
246	<	try {
247	<	p.shutdown();
248	<	p.schedule(new NoOpCallable(),
249	<	MEDIUM_DELAY_MS, MILLISECONDS);
250	<	shouldThrow();
251	<	} catch (RejectedExecutionException success) {
252	<	} catch (SecurityException ok) {}
253	<	}
254	<	}
271	>	// ScheduledThreadPoolExecutor has an unbounded queue, so never saturated.
272	>	await(threadsStarted);
273
274	<	/**
275	<	* schedule callable throws RejectedExecutionException if shutdown
276	<	*/
259	<	public void testSchedule3_RejectedExecutionException() throws InterruptedException {
260	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
261	<	try (PoolCleaner cleaner = cleaner(p)) {
262	<	try {
274	>	if (rnd.nextBoolean())
275	>	p.shutdownNow();
276	>	else
277		p.shutdown();
278	<	p.schedule(new NoOpCallable(),
279	<	MEDIUM_DELAY_MS, MILLISECONDS);
280	<	shouldThrow();
267	<	} catch (RejectedExecutionException success) {
268	<	} catch (SecurityException ok) {}
269	<	}
270	<	}
278	>	// Pool is shutdown, but not yet terminated
279	>	assertTaskSubmissionsAreRejected(p);
280	>	assertFalse(p.isTerminated());
281
282	<	/**
283	<	* scheduleAtFixedRate throws RejectedExecutionException if shutdown
274	<	*/
275	<	public void testScheduleAtFixedRate1_RejectedExecutionException() throws InterruptedException {
276	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
277	<	try (PoolCleaner cleaner = cleaner(p)) {
278	<	try {
279	<	p.shutdown();
280	<	p.scheduleAtFixedRate(new NoOpRunnable(),
281	<	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS);
282	<	shouldThrow();
283	<	} catch (RejectedExecutionException success) {
284	<	} catch (SecurityException ok) {}
285	<	}
286	<	}
282	>	done.countDown();   // release blocking tasks
283	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
284
285	<	/**
289	<	* scheduleWithFixedDelay throws RejectedExecutionException if shutdown
290	<	*/
291	<	public void testScheduleWithFixedDelay1_RejectedExecutionException() throws InterruptedException {
292	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
293	<	try (PoolCleaner cleaner = cleaner(p)) {
294	<	try {
295	<	p.shutdown();
296	<	p.scheduleWithFixedDelay(new NoOpRunnable(),
297	<	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS);
298	<	shouldThrow();
299	<	} catch (RejectedExecutionException success) {
300	<	} catch (SecurityException ok) {}
285	>	assertTaskSubmissionsAreRejected(p);
286		}
287	+	assertEquals(p.getCorePoolSize(), p.getCompletedTaskCount());
288		}
289
290		/**
#	Line 306 | Line 292 | public class ScheduledExecutorTest exten
292		* thread becomes active
293		*/
294		public void testGetActiveCount() throws InterruptedException {
295	+	final CountDownLatch done = new CountDownLatch(1);
296		final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(2);
297	<	try (PoolCleaner cleaner = cleaner(p)) {
297	>	try (PoolCleaner cleaner = cleaner(p, done)) {
298		final CountDownLatch threadStarted = new CountDownLatch(1);
312	–	final CountDownLatch done = new CountDownLatch(1);
299		assertEquals(0, p.getActiveCount());
300		p.execute(new CheckedRunnable() {
301		public void realRun() throws InterruptedException {
302		threadStarted.countDown();
303		assertEquals(1, p.getActiveCount());
304	<	done.await();
304	>	await(done);
305		}});
306	<	assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
306	>	await(threadStarted);
307		assertEquals(1, p.getActiveCount());
322	–	done.countDown();
308		}
309		}
310
#	Line 338 | Line 323 | public class ScheduledExecutorTest exten
323		public void realRun() throws InterruptedException {
324		threadStarted.countDown();
325		assertEquals(0, p.getCompletedTaskCount());
326	<	threadProceed.await();
326	>	await(threadProceed);
327		threadDone.countDown();
328		}});
329		await(threadStarted);
330		assertEquals(0, p.getCompletedTaskCount());
331		threadProceed.countDown();
332	<	threadDone.await();
332	>	await(threadDone);
333		long startTime = System.nanoTime();
334		while (p.getCompletedTaskCount() != 1) {
335		if (millisElapsedSince(startTime) > LONG_DELAY_MS)
#	Line 373 | Line 358 | public class ScheduledExecutorTest exten
358		final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(THREADS);
359		final CountDownLatch threadsStarted = new CountDownLatch(THREADS);
360		final CountDownLatch done = new CountDownLatch(1);
361	<	try (PoolCleaner cleaner = cleaner(p)) {
361	>	try (PoolCleaner cleaner = cleaner(p, done)) {
362		assertEquals(0, p.getLargestPoolSize());
363		for (int i = 0; i < THREADS; i++)
364		p.execute(new CheckedRunnable() {
365		public void realRun() throws InterruptedException {
366		threadsStarted.countDown();
367	<	done.await();
367	>	await(done);
368		assertEquals(THREADS, p.getLargestPoolSize());
369		}});
370	<	assertTrue(threadsStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
370	>	await(threadsStarted);
371		assertEquals(THREADS, p.getLargestPoolSize());
387	–	done.countDown();
372		}
373		assertEquals(THREADS, p.getLargestPoolSize());
374		}
#	Line 397 | Line 381 | public class ScheduledExecutorTest exten
381		final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
382		final CountDownLatch threadStarted = new CountDownLatch(1);
383		final CountDownLatch done = new CountDownLatch(1);
384	<	try (PoolCleaner cleaner = cleaner(p)) {
384	>	try (PoolCleaner cleaner = cleaner(p, done)) {
385		assertEquals(0, p.getPoolSize());
386		p.execute(new CheckedRunnable() {
387		public void realRun() throws InterruptedException {
388		threadStarted.countDown();
389		assertEquals(1, p.getPoolSize());
390	<	done.await();
390	>	await(done);
391		}});
392	<	assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
392	>	await(threadStarted);
393		assertEquals(1, p.getPoolSize());
410	–	done.countDown();
394		}
395		}
396
#	Line 416 | Line 399 | public class ScheduledExecutorTest exten
399		* submitted
400		*/
401		public void testGetTaskCount() throws InterruptedException {
402	+	final int TASKS = 3;
403	+	final CountDownLatch done = new CountDownLatch(1);
404		final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
405	<	try (PoolCleaner cleaner = cleaner(p)) {
405	>	try (PoolCleaner cleaner = cleaner(p, done)) {
406		final CountDownLatch threadStarted = new CountDownLatch(1);
422	–	final CountDownLatch done = new CountDownLatch(1);
423	–	final int TASKS = 5;
407		assertEquals(0, p.getTaskCount());
408	<	for (int i = 0; i < TASKS; i++)
408	>	assertEquals(0, p.getCompletedTaskCount());
409	>	p.execute(new CheckedRunnable() {
410	>	public void realRun() throws InterruptedException {
411	>	threadStarted.countDown();
412	>	await(done);
413	>	}});
414	>	await(threadStarted);
415	>	assertEquals(1, p.getTaskCount());
416	>	assertEquals(0, p.getCompletedTaskCount());
417	>	for (int i = 0; i < TASKS; i++) {
418	>	assertEquals(1 + i, p.getTaskCount());
419		p.execute(new CheckedRunnable() {
420		public void realRun() throws InterruptedException {
421		threadStarted.countDown();
422	<	done.await();
422	>	assertEquals(1 + TASKS, p.getTaskCount());
423	>	await(done);
424		}});
425	<	assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
426	<	assertEquals(TASKS, p.getTaskCount());
427	<	done.countDown();
425	>	}
426	>	assertEquals(1 + TASKS, p.getTaskCount());
427	>	assertEquals(0, p.getCompletedTaskCount());
428		}
429	+	assertEquals(1 + TASKS, p.getTaskCount());
430	+	assertEquals(1 + TASKS, p.getCompletedTaskCount());
431		}
432
433		/**
434		* getThreadFactory returns factory in constructor if not set
435		*/
436		public void testGetThreadFactory() throws InterruptedException {
437	<	ThreadFactory threadFactory = new SimpleThreadFactory();
438	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1, threadFactory);
439	<	assertSame(threadFactory, p.getThreadFactory());
440	<	joinPool(p);
437	>	final ThreadFactory threadFactory = new SimpleThreadFactory();
438	>	final ScheduledThreadPoolExecutor p =
439	>	new ScheduledThreadPoolExecutor(1, threadFactory);
440	>	try (PoolCleaner cleaner = cleaner(p)) {
441	>	assertSame(threadFactory, p.getThreadFactory());
442	>	}
443		}
444
445		/**
#	Line 449 | Line 447 | public class ScheduledExecutorTest exten
447		*/
448		public void testSetThreadFactory() throws InterruptedException {
449		ThreadFactory threadFactory = new SimpleThreadFactory();
450	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
450	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
451		try (PoolCleaner cleaner = cleaner(p)) {
452		p.setThreadFactory(threadFactory);
453		assertSame(threadFactory, p.getThreadFactory());
#	Line 460 | Line 458 | public class ScheduledExecutorTest exten
458		* setThreadFactory(null) throws NPE
459		*/
460		public void testSetThreadFactoryNull() throws InterruptedException {
461	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
461	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
462		try (PoolCleaner cleaner = cleaner(p)) {
463		try {
464		p.setThreadFactory(null);
#	Line 470 | Line 468 | public class ScheduledExecutorTest exten
468		}
469
470		/**
471	+	* The default rejected execution handler is AbortPolicy.
472	+	*/
473	+	public void testDefaultRejectedExecutionHandler() {
474	+	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
475	+	try (PoolCleaner cleaner = cleaner(p)) {
476	+	assertTrue(p.getRejectedExecutionHandler()
477	+	instanceof ThreadPoolExecutor.AbortPolicy);
478	+	}
479	+	}
480	+
481	+	/**
482		* isShutdown is false before shutdown, true after
483		*/
484		public void testIsShutdown() {
485	<
486	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
487	<	try {
488	<	assertFalse(p.isShutdown());
489	<	}
490	<	finally {
491	<	try { p.shutdown(); } catch (SecurityException ok) { return; }
485	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
486	>	assertFalse(p.isShutdown());
487	>	try (PoolCleaner cleaner = cleaner(p)) {
488	>	try {
489	>	p.shutdown();
490	>	assertTrue(p.isShutdown());
491	>	} catch (SecurityException ok) {}
492		}
484	–	assertTrue(p.isShutdown());
493		}
494
495		/**
#	Line 497 | Line 505 | public class ScheduledExecutorTest exten
505		public void realRun() throws InterruptedException {
506		assertFalse(p.isTerminated());
507		threadStarted.countDown();
508	<	done.await();
508	>	await(done);
509		}});
510	<	assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
510	>	await(threadStarted);
511		assertFalse(p.isTerminating());
512		done.countDown();
513		try { p.shutdown(); } catch (SecurityException ok) { return; }
#	Line 521 | Line 529 | public class ScheduledExecutorTest exten
529		public void realRun() throws InterruptedException {
530		assertFalse(p.isTerminating());
531		threadStarted.countDown();
532	<	done.await();
532	>	await(done);
533		}});
534	<	assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
534	>	await(threadStarted);
535		assertFalse(p.isTerminating());
536		done.countDown();
537		try { p.shutdown(); } catch (SecurityException ok) { return; }
#	Line 537 | Line 545 | public class ScheduledExecutorTest exten
545		* getQueue returns the work queue, which contains queued tasks
546		*/
547		public void testGetQueue() throws InterruptedException {
548	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
549	<	try (PoolCleaner cleaner = cleaner(p)) {
548	>	final CountDownLatch done = new CountDownLatch(1);
549	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
550	>	try (PoolCleaner cleaner = cleaner(p, done)) {
551		final CountDownLatch threadStarted = new CountDownLatch(1);
552	<	final CountDownLatch done = new CountDownLatch(1);
553	<	ScheduledFuture[] tasks = new ScheduledFuture[5];
552	>	@SuppressWarnings("unchecked")
553	>	ScheduledFuture<?>[] tasks = (ScheduledFuture<?>[])new ScheduledFuture[5];
554		for (int i = 0; i < tasks.length; i++) {
555		Runnable r = new CheckedRunnable() {
556		public void realRun() throws InterruptedException {
557		threadStarted.countDown();
558	<	done.await();
558	>	await(done);
559		}};
560		tasks[i] = p.schedule(r, 1, MILLISECONDS);
561		}
562	<	assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
562	>	await(threadStarted);
563		BlockingQueue<Runnable> q = p.getQueue();
564		assertTrue(q.contains(tasks[tasks.length - 1]));
565		assertFalse(q.contains(tasks[0]));
557	–	done.countDown();
566		}
567		}
568
#	Line 562 | Line 570 | public class ScheduledExecutorTest exten
570		* remove(task) removes queued task, and fails to remove active task
571		*/
572		public void testRemove() throws InterruptedException {
573	+	final CountDownLatch done = new CountDownLatch(1);
574		final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
575	<	try (PoolCleaner cleaner = cleaner(p)) {
576	<	ScheduledFuture[] tasks = new ScheduledFuture[5];
575	>	try (PoolCleaner cleaner = cleaner(p, done)) {
576	>	@SuppressWarnings("unchecked")
577	>	ScheduledFuture<?>[] tasks = (ScheduledFuture<?>[])new ScheduledFuture[5];
578		final CountDownLatch threadStarted = new CountDownLatch(1);
569	–	final CountDownLatch done = new CountDownLatch(1);
579		for (int i = 0; i < tasks.length; i++) {
580		Runnable r = new CheckedRunnable() {
581		public void realRun() throws InterruptedException {
582		threadStarted.countDown();
583	<	done.await();
583	>	await(done);
584		}};
585		tasks[i] = p.schedule(r, 1, MILLISECONDS);
586		}
587	<	assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
587	>	await(threadStarted);
588		BlockingQueue<Runnable> q = p.getQueue();
589		assertFalse(p.remove((Runnable)tasks[0]));
590		assertTrue(q.contains((Runnable)tasks[4]));
#	Line 586 | Line 595 | public class ScheduledExecutorTest exten
595		assertTrue(q.contains((Runnable)tasks[3]));
596		assertTrue(p.remove((Runnable)tasks[3]));
597		assertFalse(q.contains((Runnable)tasks[3]));
589	–	done.countDown();
598		}
599		}
600
#	Line 594 | Line 602 | public class ScheduledExecutorTest exten
602		* purge eventually removes cancelled tasks from the queue
603		*/
604		public void testPurge() throws InterruptedException {
605	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
606	<	ScheduledFuture[] tasks = new ScheduledFuture[5];
607	<	for (int i = 0; i < tasks.length; i++)
608	<	tasks[i] = p.schedule(new SmallPossiblyInterruptedRunnable(),
609	<	LONG_DELAY_MS, MILLISECONDS);
610	<	try {
605	>	@SuppressWarnings("unchecked")
606	>	ScheduledFuture<?>[] tasks = (ScheduledFuture<?>[])new ScheduledFuture[5];
607	>	final Runnable releaser = new Runnable() { public void run() {
608	>	for (ScheduledFuture<?> task : tasks)
609	>	if (task != null) task.cancel(true); }};
610	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
611	>	try (PoolCleaner cleaner = cleaner(p, releaser)) {
612	>	for (int i = 0; i < tasks.length; i++)
613	>	tasks[i] = p.schedule(possiblyInterruptedRunnable(SMALL_DELAY_MS),
614	>	LONG_DELAY_MS, MILLISECONDS);
615		int max = tasks.length;
616		if (tasks[4].cancel(true)) --max;
617		if (tasks[3].cancel(true)) --max;
#	Line 611 | Line 623 | public class ScheduledExecutorTest exten
623		long count = p.getTaskCount();
624		if (count == max)
625		return;
626	<	} while (millisElapsedSince(startTime) < MEDIUM_DELAY_MS);
626	>	} while (millisElapsedSince(startTime) < LONG_DELAY_MS);
627		fail("Purge failed to remove cancelled tasks");
616	–	} finally {
617	–	for (ScheduledFuture task : tasks)
618	–	task.cancel(true);
619	–	joinPool(p);
628		}
629		}
630
#	Line 630 | Line 638 | public class ScheduledExecutorTest exten
638		final AtomicInteger ran = new AtomicInteger(0);
639		final ScheduledThreadPoolExecutor p =
640		new ScheduledThreadPoolExecutor(poolSize);
641	<	CountDownLatch threadsStarted = new CountDownLatch(poolSize);
641	>	final CountDownLatch threadsStarted = new CountDownLatch(poolSize);
642		Runnable waiter = new CheckedRunnable() { public void realRun() {
643		threadsStarted.countDown();
644		try {
645	<	MILLISECONDS.sleep(2 * LONG_DELAY_MS);
645	>	MILLISECONDS.sleep(LONGER_DELAY_MS);
646		} catch (InterruptedException success) {}
647		ran.getAndIncrement();
648		}};
649		for (int i = 0; i < count; i++)
650		p.execute(waiter);
651	<	assertTrue(threadsStarted.await(LONG_DELAY_MS, MILLISECONDS));
651	>	await(threadsStarted);
652		assertEquals(poolSize, p.getActiveCount());
653		assertEquals(0, p.getCompletedTaskCount());
654		final List<Runnable> queuedTasks;
#	Line 663 | Line 671 | public class ScheduledExecutorTest exten
671		* and those tasks are drained from the queue
672		*/
673		public void testShutdownNow_delayedTasks() throws InterruptedException {
674	<	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
675	<	List<ScheduledFuture> tasks = new ArrayList<>();
674	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
675	>	List<ScheduledFuture<?>> tasks = new ArrayList<>();
676		for (int i = 0; i < 3; i++) {
677		Runnable r = new NoOpRunnable();
678		tasks.add(p.schedule(r, 9, SECONDS));
#	Line 672 | Line 680 | public class ScheduledExecutorTest exten
680		tasks.add(p.scheduleWithFixedDelay(r, 9, 9, SECONDS));
681		}
682		if (testImplementationDetails)
683	<	assertEquals(new HashSet(tasks), new HashSet(p.getQueue()));
683	>	assertEquals(new HashSet<Object>(tasks), new HashSet<Object>(p.getQueue()));
684		final List<Runnable> queuedTasks;
685		try {
686		queuedTasks = p.shutdownNow();
#	Line 682 | Line 690 | public class ScheduledExecutorTest exten
690		assertTrue(p.isShutdown());
691		assertTrue(p.getQueue().isEmpty());
692		if (testImplementationDetails)
693	<	assertEquals(new HashSet(tasks), new HashSet(queuedTasks));
693	>	assertEquals(new HashSet<Object>(tasks), new HashSet<Object>(queuedTasks));
694		assertEquals(tasks.size(), queuedTasks.size());
695	<	for (ScheduledFuture task : tasks) {
695	>	for (ScheduledFuture<?> task : tasks) {
696		assertFalse(task.isDone());
697		assertFalse(task.isCancelled());
698		}
#	Line 699 | Line 707 | public class ScheduledExecutorTest exten
707		* - setExecuteExistingDelayedTasksAfterShutdownPolicy
708		* - setContinueExistingPeriodicTasksAfterShutdownPolicy
709		*/
710	+	@SuppressWarnings("FutureReturnValueIgnored")
711		public void testShutdown_cancellation() throws Exception {
712	<	Boolean[] allBooleans = { null, Boolean.FALSE, Boolean.TRUE };
704	<	for (Boolean policy : allBooleans)
705	<	{
706	<	final int poolSize = 2;
712	>	final int poolSize = 4;
713		final ScheduledThreadPoolExecutor p
714		= new ScheduledThreadPoolExecutor(poolSize);
715	<	final boolean effectiveDelayedPolicy = (policy != Boolean.FALSE);
716	<	final boolean effectivePeriodicPolicy = (policy == Boolean.TRUE);
717	<	final boolean effectiveRemovePolicy = (policy == Boolean.TRUE);
718	<	if (policy != null) {
719	<	p.setExecuteExistingDelayedTasksAfterShutdownPolicy(policy);
720	<	p.setContinueExistingPeriodicTasksAfterShutdownPolicy(policy);
721	<	p.setRemoveOnCancelPolicy(policy);
722	<	}
715	>	final BlockingQueue<Runnable> q = p.getQueue();
716	>	final ThreadLocalRandom rnd = ThreadLocalRandom.current();
717	>	final long delay = rnd.nextInt(2);
718	>	final int rounds = rnd.nextInt(1, 3);
719	>	final boolean effectiveDelayedPolicy;
720	>	final boolean effectivePeriodicPolicy;
721	>	final boolean effectiveRemovePolicy;
722	>
723	>	if (rnd.nextBoolean())
724	>	p.setExecuteExistingDelayedTasksAfterShutdownPolicy(
725	>	effectiveDelayedPolicy = rnd.nextBoolean());
726	>	else
727	>	effectiveDelayedPolicy = true;
728		assertEquals(effectiveDelayedPolicy,
729		p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
730	+
731	+	if (rnd.nextBoolean())
732	+	p.setContinueExistingPeriodicTasksAfterShutdownPolicy(
733	+	effectivePeriodicPolicy = rnd.nextBoolean());
734	+	else
735	+	effectivePeriodicPolicy = false;
736		assertEquals(effectivePeriodicPolicy,
737		p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
738	+
739	+	if (rnd.nextBoolean())
740	+	p.setRemoveOnCancelPolicy(
741	+	effectiveRemovePolicy = rnd.nextBoolean());
742	+	else
743	+	effectiveRemovePolicy = false;
744		assertEquals(effectiveRemovePolicy,
745		p.getRemoveOnCancelPolicy());
746	<	// Strategy: Wedge the pool with poolSize "blocker" threads
746	>
747	>	final boolean periodicTasksContinue = effectivePeriodicPolicy && rnd.nextBoolean();
748	>
749	>	// Strategy: Wedge the pool with one wave of "blocker" tasks,
750	>	// then add a second wave that waits in the queue until unblocked.
751		final AtomicInteger ran = new AtomicInteger(0);
752		final CountDownLatch poolBlocked = new CountDownLatch(poolSize);
753		final CountDownLatch unblock = new CountDownLatch(1);
754	<	final CountDownLatch periodicLatch1 = new CountDownLatch(2);
728	<	final CountDownLatch periodicLatch2 = new CountDownLatch(2);
729	<	Runnable task = new CheckedRunnable() { public void realRun()
730	<	throws InterruptedException {
731	<	poolBlocked.countDown();
732	<	assertTrue(unblock.await(LONG_DELAY_MS, MILLISECONDS));
733	<	ran.getAndIncrement();
734	<	}};
735	<	List<Future<?>> blockers = new ArrayList<>();
736	<	List<Future<?>> periodics = new ArrayList<>();
737	<	List<Future<?>> delayeds = new ArrayList<>();
738	<	for (int i = 0; i < poolSize; i++)
739	<	blockers.add(p.submit(task));
740	<	assertTrue(poolBlocked.await(LONG_DELAY_MS, MILLISECONDS));
741	<
742	<	periodics.add(p.scheduleAtFixedRate(countDowner(periodicLatch1),
743	<	1, 1, MILLISECONDS));
744	<	periodics.add(p.scheduleWithFixedDelay(countDowner(periodicLatch2),
745	<	1, 1, MILLISECONDS));
746	<	delayeds.add(p.schedule(task, 1, MILLISECONDS));
754	>	final RuntimeException exception = new RuntimeException();
755
756	<	assertTrue(p.getQueue().containsAll(periodics));
757	<	assertTrue(p.getQueue().containsAll(delayeds));
758	<	try { p.shutdown(); } catch (SecurityException ok) { return; }
759	<	assertTrue(p.isShutdown());
760	<	assertFalse(p.isTerminated());
761	<	for (Future<?> periodic : periodics) {
762	<	assertTrue(effectivePeriodicPolicy ^ periodic.isCancelled());
755	<	assertTrue(effectivePeriodicPolicy ^ periodic.isDone());
756	<	}
757	<	for (Future<?> delayed : delayeds) {
758	<	assertTrue(effectiveDelayedPolicy ^ delayed.isCancelled());
759	<	assertTrue(effectiveDelayedPolicy ^ delayed.isDone());
760	<	}
761	<	if (testImplementationDetails) {
762	<	assertEquals(effectivePeriodicPolicy,
763	<	p.getQueue().containsAll(periodics));
764	<	assertEquals(effectiveDelayedPolicy,
765	<	p.getQueue().containsAll(delayeds));
766	<	}
767	<	// Release all pool threads
768	<	unblock.countDown();
769	<
770	<	for (Future<?> delayed : delayeds) {
771	<	if (effectiveDelayedPolicy) {
772	<	assertNull(delayed.get());
756	>	class Task implements Runnable {
757	>	public void run() {
758	>	try {
759	>	ran.getAndIncrement();
760	>	poolBlocked.countDown();
761	>	await(unblock);
762	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
763		}
764		}
765	<	if (effectivePeriodicPolicy) {
766	<	assertTrue(periodicLatch1.await(LONG_DELAY_MS, MILLISECONDS));
767	<	assertTrue(periodicLatch2.await(LONG_DELAY_MS, MILLISECONDS));
768	<	for (Future<?> periodic : periodics) {
769	<	assertTrue(periodic.cancel(false));
770	<	assertTrue(periodic.isCancelled());
771	<	assertTrue(periodic.isDone());
765	>
766	>	class PeriodicTask extends Task {
767	>	PeriodicTask(int rounds) { this.rounds = rounds; }
768	>	int rounds;
769	>	public void run() {
770	>	if (--rounds == 0) super.run();
771	>	// throw exception to surely terminate this periodic task,
772	>	// but in a separate execution and in a detectable way.
773	>	if (rounds == -1) throw exception;
774		}
775		}
776	+
777	+	Runnable task = new Task();
778	+
779	+	List<Future<?>> immediates = new ArrayList<>();
780	+	List<Future<?>> delayeds   = new ArrayList<>();
781	+	List<Future<?>> periodics  = new ArrayList<>();
782	+
783	+	immediates.add(p.submit(task));
784	+	delayeds.add(p.schedule(task, delay, MILLISECONDS));
785	+	periodics.add(p.scheduleAtFixedRate(
786	+	new PeriodicTask(rounds), delay, 1, MILLISECONDS));
787	+	periodics.add(p.scheduleWithFixedDelay(
788	+	new PeriodicTask(rounds), delay, 1, MILLISECONDS));
789	+
790	+	await(poolBlocked);
791	+
792	+	assertEquals(poolSize, ran.get());
793	+	assertEquals(poolSize, p.getActiveCount());
794	+	assertTrue(q.isEmpty());
795	+
796	+	// Add second wave of tasks.
797	+	immediates.add(p.submit(task));
798	+	delayeds.add(p.schedule(task, effectiveDelayedPolicy ? delay : LONG_DELAY_MS, MILLISECONDS));
799	+	periodics.add(p.scheduleAtFixedRate(
800	+	new PeriodicTask(rounds), delay, 1, MILLISECONDS));
801	+	periodics.add(p.scheduleWithFixedDelay(
802	+	new PeriodicTask(rounds), delay, 1, MILLISECONDS));
803	+
804	+	assertEquals(poolSize, q.size());
805	+	assertEquals(poolSize, ran.get());
806	+
807	+	immediates.forEach(
808	+	f -> assertTrue(((ScheduledFuture)f).getDelay(NANOSECONDS) <= 0L));
809	+
810	+	Stream.of(immediates, delayeds, periodics).flatMap(Collection::stream)
811	+	.forEach(f -> assertFalse(f.isDone()));
812	+
813	+	try { p.shutdown(); } catch (SecurityException ok) { return; }
814	+	assertTrue(p.isShutdown());
815	+	assertTrue(p.isTerminating());
816	+	assertFalse(p.isTerminated());
817	+
818	+	if (rnd.nextBoolean())
819	+	assertThrows(
820	+	RejectedExecutionException.class,
821	+	() -> p.submit(task),
822	+	() -> p.schedule(task, 1, SECONDS),
823	+	() -> p.scheduleAtFixedRate(
824	+	new PeriodicTask(1), 1, 1, SECONDS),
825	+	() -> p.scheduleWithFixedDelay(
826	+	new PeriodicTask(2), 1, 1, SECONDS));
827	+
828	+	assertTrue(q.contains(immediates.get(1)));
829	+	assertTrue(!effectiveDelayedPolicy
830	+	^ q.contains(delayeds.get(1)));
831	+	assertTrue(!effectivePeriodicPolicy
832	+	^ q.containsAll(periodics.subList(2, 4)));
833	+
834	+	immediates.forEach(f -> assertFalse(f.isDone()));
835	+
836	+	assertFalse(delayeds.get(0).isDone());
837	+	if (effectiveDelayedPolicy)
838	+	assertFalse(delayeds.get(1).isDone());
839	+	else
840	+	assertTrue(delayeds.get(1).isCancelled());
841	+
842	+	if (effectivePeriodicPolicy)
843	+	periodics.forEach(
844	+	f -> {
845	+	assertFalse(f.isDone());
846	+	if (!periodicTasksContinue) {
847	+	assertTrue(f.cancel(false));
848	+	assertTrue(f.isCancelled());
849	+	}
850	+	});
851	+	else {
852	+	periodics.subList(0, 2).forEach(f -> assertFalse(f.isDone()));
853	+	periodics.subList(2, 4).forEach(f -> assertTrue(f.isCancelled()));
854	+	}
855	+
856	+	unblock.countDown();    // Release all pool threads
857	+
858		assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
859	+	assertFalse(p.isTerminating());
860		assertTrue(p.isTerminated());
861	<	assertEquals(2 + (effectiveDelayedPolicy ? 1 : 0), ran.get());
862	<	}}
861	>
862	>	assertTrue(q.isEmpty());
863	>
864	>	Stream.of(immediates, delayeds, periodics).flatMap(Collection::stream)
865	>	.forEach(f -> assertTrue(f.isDone()));
866	>
867	>	for (Future<?> f : immediates) assertNull(f.get());
868	>
869	>	assertNull(delayeds.get(0).get());
870	>	if (effectiveDelayedPolicy)
871	>	assertNull(delayeds.get(1).get());
872	>	else
873	>	assertTrue(delayeds.get(1).isCancelled());
874	>
875	>	if (periodicTasksContinue)
876	>	periodics.forEach(
877	>	f -> {
878	>	try { f.get(); }
879	>	catch (ExecutionException success) {
880	>	assertSame(exception, success.getCause());
881	>	}
882	>	catch (Throwable fail) { threadUnexpectedException(fail); }
883	>	});
884	>	else
885	>	periodics.forEach(f -> assertTrue(f.isCancelled()));
886	>
887	>	assertEquals(poolSize + 1
888	>	+ (effectiveDelayedPolicy ? 1 : 0)
889	>	+ (periodicTasksContinue ? 2 : 0),
890	>	ran.get());
891	>	}
892
893		/**
894		* completed submit of callable returns result
#	Line 823 | Line 927 | public class ScheduledExecutorTest exten
927		}
928
929		/**
930	<	* invokeAny(null) throws NPE
930	>	* invokeAny(null) throws NullPointerException
931		*/
932		public void testInvokeAny1() throws Exception {
933		final ExecutorService e = new ScheduledThreadPoolExecutor(2);
#	Line 836 | Line 940 | public class ScheduledExecutorTest exten
940		}
941
942		/**
943	<	* invokeAny(empty collection) throws IAE
943	>	* invokeAny(empty collection) throws IllegalArgumentException
944		*/
945		public void testInvokeAny2() throws Exception {
946		final ExecutorService e = new ScheduledThreadPoolExecutor(2);
#	Line 849 | Line 953 | public class ScheduledExecutorTest exten
953		}
954
955		/**
956	<	* invokeAny(c) throws NPE if c has null elements
956	>	* invokeAny(c) throws NullPointerException if c has null elements
957		*/
958		public void testInvokeAny3() throws Exception {
959		CountDownLatch latch = new CountDownLatch(1);
960		final ExecutorService e = new ScheduledThreadPoolExecutor(2);
961		try (PoolCleaner cleaner = cleaner(e)) {
962	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
962	>	List<Callable<String>> l = new ArrayList<>();
963		l.add(latchAwaitingStringTask(latch));
964		l.add(null);
965		try {
#	Line 872 | Line 976 | public class ScheduledExecutorTest exten
976		public void testInvokeAny4() throws Exception {
977		final ExecutorService e = new ScheduledThreadPoolExecutor(2);
978		try (PoolCleaner cleaner = cleaner(e)) {
979	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
979	>	List<Callable<String>> l = new ArrayList<>();
980		l.add(new NPETask());
981		try {
982		e.invokeAny(l);
#	Line 889 | Line 993 | public class ScheduledExecutorTest exten
993		public void testInvokeAny5() throws Exception {
994		final ExecutorService e = new ScheduledThreadPoolExecutor(2);
995		try (PoolCleaner cleaner = cleaner(e)) {
996	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
996	>	List<Callable<String>> l = new ArrayList<>();
997		l.add(new StringTask());
998		l.add(new StringTask());
999		String result = e.invokeAny(l);
#	Line 911 | Line 1015 | public class ScheduledExecutorTest exten
1015		}
1016
1017		/**
1018	<	* invokeAll(empty collection) returns empty collection
1018	>	* invokeAll(empty collection) returns empty list
1019		*/
1020		public void testInvokeAll2() throws Exception {
1021		final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1022	+	final Collection<Callable<String>> emptyCollection
1023	+	= Collections.emptyList();
1024		try (PoolCleaner cleaner = cleaner(e)) {
1025	<	List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>());
1025	>	List<Future<String>> r = e.invokeAll(emptyCollection);
1026		assertTrue(r.isEmpty());
1027		}
1028		}
#	Line 927 | Line 1033 | public class ScheduledExecutorTest exten
1033		public void testInvokeAll3() throws Exception {
1034		final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1035		try (PoolCleaner cleaner = cleaner(e)) {
1036	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1036	>	List<Callable<String>> l = new ArrayList<>();
1037		l.add(new StringTask());
1038		l.add(null);
1039		try {
#	Line 943 | Line 1049 | public class ScheduledExecutorTest exten
1049		public void testInvokeAll4() throws Exception {
1050		final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1051		try (PoolCleaner cleaner = cleaner(e)) {
1052	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1052	>	List<Callable<String>> l = new ArrayList<>();
1053		l.add(new NPETask());
1054		List<Future<String>> futures = e.invokeAll(l);
1055		assertEquals(1, futures.size());
#	Line 962 | Line 1068 | public class ScheduledExecutorTest exten
1068		public void testInvokeAll5() throws Exception {
1069		final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1070		try (PoolCleaner cleaner = cleaner(e)) {
1071	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1071	>	List<Callable<String>> l = new ArrayList<>();
1072		l.add(new StringTask());
1073		l.add(new StringTask());
1074		List<Future<String>> futures = e.invokeAll(l);
#	Line 979 | Line 1085 | public class ScheduledExecutorTest exten
1085		final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1086		try (PoolCleaner cleaner = cleaner(e)) {
1087		try {
1088	<	e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS);
1088	>	e.invokeAny(null, randomTimeout(), randomTimeUnit());
1089		shouldThrow();
1090		} catch (NullPointerException success) {}
1091		}
1092		}
1093
1094		/**
1095	<	* timed invokeAny(,,null) throws NPE
1095	>	* timed invokeAny(,,null) throws NullPointerException
1096		*/
1097		public void testTimedInvokeAnyNullTimeUnit() throws Exception {
1098		final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1099		try (PoolCleaner cleaner = cleaner(e)) {
1100	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1100	>	List<Callable<String>> l = new ArrayList<>();
1101		l.add(new StringTask());
1102		try {
1103	<	e.invokeAny(l, MEDIUM_DELAY_MS, null);
1103	>	e.invokeAny(l, randomTimeout(), null);
1104		shouldThrow();
1105		} catch (NullPointerException success) {}
1106		}
1107		}
1108
1109		/**
1110	<	* timed invokeAny(empty collection) throws IAE
1110	>	* timed invokeAny(empty collection) throws IllegalArgumentException
1111		*/
1112		public void testTimedInvokeAny2() throws Exception {
1113		final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1114	+	final Collection<Callable<String>> emptyCollection
1115	+	= Collections.emptyList();
1116		try (PoolCleaner cleaner = cleaner(e)) {
1117		try {
1118	<	e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
1118	>	e.invokeAny(emptyCollection, randomTimeout(), randomTimeUnit());
1119		shouldThrow();
1120		} catch (IllegalArgumentException success) {}
1121		}
#	Line 1020 | Line 1128 | public class ScheduledExecutorTest exten
1128		CountDownLatch latch = new CountDownLatch(1);
1129		final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1130		try (PoolCleaner cleaner = cleaner(e)) {
1131	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1131	>	List<Callable<String>> l = new ArrayList<>();
1132		l.add(latchAwaitingStringTask(latch));
1133		l.add(null);
1134		try {
1135	<	e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1135	>	e.invokeAny(l, randomTimeout(), randomTimeUnit());
1136		shouldThrow();
1137		} catch (NullPointerException success) {}
1138		latch.countDown();
#	Line 1037 | Line 1145 | public class ScheduledExecutorTest exten
1145		public void testTimedInvokeAny4() throws Exception {
1146		final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1147		try (PoolCleaner cleaner = cleaner(e)) {
1148	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1148	>	long startTime = System.nanoTime();
1149	>	List<Callable<String>> l = new ArrayList<>();
1150		l.add(new NPETask());
1151		try {
1152	<	e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1152	>	e.invokeAny(l, LONG_DELAY_MS, MILLISECONDS);
1153		shouldThrow();
1154		} catch (ExecutionException success) {
1155		assertTrue(success.getCause() instanceof NullPointerException);
1156		}
1157	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1158		}
1159		}
1160
#	Line 1054 | Line 1164 | public class ScheduledExecutorTest exten
1164		public void testTimedInvokeAny5() throws Exception {
1165		final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1166		try (PoolCleaner cleaner = cleaner(e)) {
1167	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1167	>	long startTime = System.nanoTime();
1168	>	List<Callable<String>> l = new ArrayList<>();
1169		l.add(new StringTask());
1170		l.add(new StringTask());
1171	<	String result = e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1171	>	String result = e.invokeAny(l, LONG_DELAY_MS, MILLISECONDS);
1172		assertSame(TEST_STRING, result);
1173	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1174		}
1175		}
1176
#	Line 1069 | Line 1181 | public class ScheduledExecutorTest exten
1181		final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1182		try (PoolCleaner cleaner = cleaner(e)) {
1183		try {
1184	<	e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS);
1184	>	e.invokeAll(null, randomTimeout(), randomTimeUnit());
1185		shouldThrow();
1186		} catch (NullPointerException success) {}
1187		}
#	Line 1081 | Line 1193 | public class ScheduledExecutorTest exten
1193		public void testTimedInvokeAllNullTimeUnit() throws Exception {
1194		final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1195		try (PoolCleaner cleaner = cleaner(e)) {
1196	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1196	>	List<Callable<String>> l = new ArrayList<>();
1197		l.add(new StringTask());
1198		try {
1199	<	e.invokeAll(l, MEDIUM_DELAY_MS, null);
1199	>	e.invokeAll(l, randomTimeout(), null);
1200		shouldThrow();
1201		} catch (NullPointerException success) {}
1202		}
1203		}
1204
1205		/**
1206	<	* timed invokeAll(empty collection) returns empty collection
1206	>	* timed invokeAll(empty collection) returns empty list
1207		*/
1208		public void testTimedInvokeAll2() throws Exception {
1209		final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1210	+	final Collection<Callable<String>> emptyCollection
1211	+	= Collections.emptyList();
1212		try (PoolCleaner cleaner = cleaner(e)) {
1213	<	List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(),
1214	<	MEDIUM_DELAY_MS, MILLISECONDS);
1213	>	List<Future<String>> r =
1214	>	e.invokeAll(emptyCollection, randomTimeout(), randomTimeUnit());
1215		assertTrue(r.isEmpty());
1216		}
1217		}
#	Line 1108 | Line 1222 | public class ScheduledExecutorTest exten
1222		public void testTimedInvokeAll3() throws Exception {
1223		final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1224		try (PoolCleaner cleaner = cleaner(e)) {
1225	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1225	>	List<Callable<String>> l = new ArrayList<>();
1226		l.add(new StringTask());
1227		l.add(null);
1228		try {
1229	<	e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1229	>	e.invokeAll(l, randomTimeout(), randomTimeUnit());
1230		shouldThrow();
1231		} catch (NullPointerException success) {}
1232		}
#	Line 1124 | Line 1238 | public class ScheduledExecutorTest exten
1238		public void testTimedInvokeAll4() throws Exception {
1239		final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1240		try (PoolCleaner cleaner = cleaner(e)) {
1241	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1241	>	List<Callable<String>> l = new ArrayList<>();
1242		l.add(new NPETask());
1243		List<Future<String>> futures =
1244	<	e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1244	>	e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS);
1245		assertEquals(1, futures.size());
1246		try {
1247		futures.get(0).get();
#	Line 1144 | Line 1258 | public class ScheduledExecutorTest exten
1258		public void testTimedInvokeAll5() throws Exception {
1259		final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1260		try (PoolCleaner cleaner = cleaner(e)) {
1261	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1261	>	List<Callable<String>> l = new ArrayList<>();
1262		l.add(new StringTask());
1263		l.add(new StringTask());
1264		List<Future<String>> futures =
#	Line 1159 | Line 1273 | public class ScheduledExecutorTest exten
1273		* timed invokeAll(c) cancels tasks not completed by timeout
1274		*/
1275		public void testTimedInvokeAll6() throws Exception {
1276	<	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1277	<	try (PoolCleaner cleaner = cleaner(e)) {
1278	<	for (long timeout = timeoutMillis();;) {
1276	>	for (long timeout = timeoutMillis();;) {
1277	>	final CountDownLatch done = new CountDownLatch(1);
1278	>	final Callable<String> waiter = new CheckedCallable<>() {
1279	>	public String realCall() {
1280	>	try { done.await(LONG_DELAY_MS, MILLISECONDS); }
1281	>	catch (InterruptedException ok) {}
1282	>	return "1"; }};
1283	>	final ExecutorService p = new ScheduledThreadPoolExecutor(2);
1284	>	try (PoolCleaner cleaner = cleaner(p, done)) {
1285		List<Callable<String>> tasks = new ArrayList<>();
1286		tasks.add(new StringTask("0"));
1287	<	tasks.add(Executors.callable(new LongPossiblyInterruptedRunnable(), TEST_STRING));
1287	>	tasks.add(waiter);
1288		tasks.add(new StringTask("2"));
1289		long startTime = System.nanoTime();
1290		List<Future<String>> futures =
1291	<	e.invokeAll(tasks, timeout, MILLISECONDS);
1291	>	p.invokeAll(tasks, timeout, MILLISECONDS);
1292		assertEquals(tasks.size(), futures.size());
1293		assertTrue(millisElapsedSince(startTime) >= timeout);
1294	<	for (Future future : futures)
1294	>	for (Future<?> future : futures)
1295		assertTrue(future.isDone());
1296		assertTrue(futures.get(1).isCancelled());
1297		try {
#	Line 1187 | Line 1307 | public class ScheduledExecutorTest exten
1307		}
1308		}
1309
1310	+	/**
1311	+	* A fixed delay task with overflowing period should not prevent a
1312	+	* one-shot task from executing.
1313	+	* https://bugs.openjdk.java.net/browse/JDK-8051859
1314	+	*/
1315	+	@SuppressWarnings("FutureReturnValueIgnored")
1316	+	public void testScheduleWithFixedDelay_overflow() throws Exception {
1317	+	final CountDownLatch delayedDone = new CountDownLatch(1);
1318	+	final CountDownLatch immediateDone = new CountDownLatch(1);
1319	+	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
1320	+	try (PoolCleaner cleaner = cleaner(p)) {
1321	+	final Runnable delayed = () -> {
1322	+	delayedDone.countDown();
1323	+	p.submit(() -> immediateDone.countDown());
1324	+	};
1325	+	p.scheduleWithFixedDelay(delayed, 0L, Long.MAX_VALUE, SECONDS);
1326	+	await(delayedDone);
1327	+	await(immediateDone);
1328	+	}
1329	+	}
1330	+
1331		}

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