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

Comparing jsr166/src/test/tck/ThreadPoolExecutorTest.java (file contents):
Revision 1.3 by dl, Sun Sep 14 20:42:41 2003 UTC vs.
Revision 1.128 by jsr166, Wed Jan 27 01:57:24 2021 UTC

#	Line 1 | Line 1
1		/*
2	<	* Written by members of JCP JSR-166 Expert Group and released to the
3	<	* public domain. Use, modify, and redistribute this code in any way
4	<	* without acknowledgement. Other contributors include Andrew Wright,
5	<	* Jeffrey Hayes, Pat Fischer, Mike Judd.
2	>	* Written by Doug Lea with assistance from members of JCP JSR-166
3	>	* Expert Group and released to the public domain, as explained at
4	>	* http://creativecommons.org/publicdomain/zero/1.0/
5	>	* Other contributors include Andrew Wright, Jeffrey Hayes,
6	>	* Pat Fisher, Mike Judd.
7		*/
8
9	<	import java.util.concurrent.*;
10	<	import junit.framework.*;
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.List;
17	+	import java.util.concurrent.ArrayBlockingQueue;
18	+	import java.util.concurrent.BlockingQueue;
19	+	import java.util.concurrent.Callable;
20	+	import java.util.concurrent.CancellationException;
21	+	import java.util.concurrent.CountDownLatch;
22	+	import java.util.concurrent.ExecutionException;
23	+	import java.util.concurrent.ExecutorService;
24	+	import java.util.concurrent.Future;
25	+	import java.util.concurrent.FutureTask;
26	+	import java.util.concurrent.LinkedBlockingQueue;
27	+	import java.util.concurrent.RejectedExecutionException;
28	+	import java.util.concurrent.RejectedExecutionHandler;
29	+	import java.util.concurrent.SynchronousQueue;
30	+	import java.util.concurrent.ThreadFactory;
31	+	import java.util.concurrent.ThreadLocalRandom;
32	+	import java.util.concurrent.ThreadPoolExecutor;
33	+	import java.util.concurrent.ThreadPoolExecutor.AbortPolicy;
34	+	import java.util.concurrent.ThreadPoolExecutor.CallerRunsPolicy;
35	+	import java.util.concurrent.ThreadPoolExecutor.DiscardPolicy;
36	+	import java.util.concurrent.ThreadPoolExecutor.DiscardOldestPolicy;
37	+	import java.util.concurrent.atomic.AtomicInteger;
38	+	import java.util.concurrent.atomic.AtomicReference;
39	+
40	+	import junit.framework.Test;
41	+	import junit.framework.TestSuite;
42
43		public class ThreadPoolExecutorTest extends JSR166TestCase {
44		public static void main(String[] args) {
45	<	junit.textui.TestRunner.run (suite());
45	>	main(suite(), args);
46		}
47		public static Test suite() {
48		return new TestSuite(ThreadPoolExecutorTest.class);
49		}
50	<
50	>
51	>	static class ExtendedTPE extends ThreadPoolExecutor {
52	>	final CountDownLatch beforeCalled = new CountDownLatch(1);
53	>	final CountDownLatch afterCalled = new CountDownLatch(1);
54	>	final CountDownLatch terminatedCalled = new CountDownLatch(1);
55	>
56	>	public ExtendedTPE() {
57	>	super(1, 1, LONG_DELAY_MS, MILLISECONDS, new SynchronousQueue<Runnable>());
58	>	}
59	>	protected void beforeExecute(Thread t, Runnable r) {
60	>	beforeCalled.countDown();
61	>	}
62	>	protected void afterExecute(Runnable r, Throwable t) {
63	>	afterCalled.countDown();
64	>	}
65	>	protected void terminated() {
66	>	terminatedCalled.countDown();
67	>	}
68	>
69	>	public boolean beforeCalled() {
70	>	return beforeCalled.getCount() == 0;
71	>	}
72	>	public boolean afterCalled() {
73	>	return afterCalled.getCount() == 0;
74	>	}
75	>	public boolean terminatedCalled() {
76	>	return terminatedCalled.getCount() == 0;
77	>	}
78	>	}
79	>
80	>	static class FailingThreadFactory implements ThreadFactory {
81	>	int calls = 0;
82	>	public Thread newThread(Runnable r) {
83	>	if (++calls > 1) return null;
84	>	return new Thread(r);
85	>	}
86	>	}
87	>
88		/**
89	<	* For use as ThreadFactory in constructors
89	>	* execute successfully executes a runnable
90		*/
91	<	static class MyThreadFactory implements ThreadFactory{
92	<	public Thread newThread(Runnable r){
93	<	return new Thread(r);
94	<	}
91	>	public void testExecute() throws InterruptedException {
92	>	final ThreadPoolExecutor p =
93	>	new ThreadPoolExecutor(1, 1,
94	>	LONG_DELAY_MS, MILLISECONDS,
95	>	new ArrayBlockingQueue<Runnable>(10));
96	>	try (PoolCleaner cleaner = cleaner(p)) {
97	>	final CountDownLatch done = new CountDownLatch(1);
98	>	final Runnable task = new CheckedRunnable() {
99	>	public void realRun() { done.countDown(); }};
100	>	p.execute(task);
101	>	await(done);
102	>	}
103		}
104
105		/**
106	<	* For use as RejectedExecutionHandler in constructors
106	>	* getActiveCount increases but doesn't overestimate, when a
107	>	* thread becomes active
108		*/
109	<	static class MyREHandler implements RejectedExecutionHandler{
110	<	public void rejectedExecution(Runnable r, ThreadPoolExecutor executor){}
109	>	public void testGetActiveCount() throws InterruptedException {
110	>	final CountDownLatch done = new CountDownLatch(1);
111	>	final ThreadPoolExecutor p =
112	>	new ThreadPoolExecutor(2, 2,
113	>	LONG_DELAY_MS, MILLISECONDS,
114	>	new ArrayBlockingQueue<Runnable>(10));
115	>	try (PoolCleaner cleaner = cleaner(p, done)) {
116	>	final CountDownLatch threadStarted = new CountDownLatch(1);
117	>	assertEquals(0, p.getActiveCount());
118	>	p.execute(new CheckedRunnable() {
119	>	public void realRun() throws InterruptedException {
120	>	threadStarted.countDown();
121	>	assertEquals(1, p.getActiveCount());
122	>	await(done);
123	>	}});
124	>	await(threadStarted);
125	>	assertEquals(1, p.getActiveCount());
126	>	}
127		}
128	<
128	>
129		/**
130	<	*   execute successfully executes a runnable
130	>	* prestartCoreThread starts a thread if under corePoolSize, else doesn't
131		*/
132	<	public void testExecute(){
133	<	ThreadPoolExecutor one = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
134	<	try {
135	<	one.execute(new Runnable(){
136	<	public void run(){
137	<	try{
138	<	Thread.sleep(SHORT_DELAY_MS);
139	<	} catch(InterruptedException e){
140	<	fail("unexpected exception");
141	<	}
142	<	}
143	<	});
144	<	Thread.sleep(SMALL_DELAY_MS);
145	<	} catch(InterruptedException e){
146	<	fail("unexpected exception");
147	<	}
148	<	joinPool(one);
132	>	public void testPrestartCoreThread() {
133	>	final ThreadPoolExecutor p =
134	>	new ThreadPoolExecutor(2, 6,
135	>	LONG_DELAY_MS, MILLISECONDS,
136	>	new ArrayBlockingQueue<Runnable>(10));
137	>	try (PoolCleaner cleaner = cleaner(p)) {
138	>	assertEquals(0, p.getPoolSize());
139	>	assertTrue(p.prestartCoreThread());
140	>	assertEquals(1, p.getPoolSize());
141	>	assertTrue(p.prestartCoreThread());
142	>	assertEquals(2, p.getPoolSize());
143	>	assertFalse(p.prestartCoreThread());
144	>	assertEquals(2, p.getPoolSize());
145	>	p.setCorePoolSize(4);
146	>	assertTrue(p.prestartCoreThread());
147	>	assertEquals(3, p.getPoolSize());
148	>	assertTrue(p.prestartCoreThread());
149	>	assertEquals(4, p.getPoolSize());
150	>	assertFalse(p.prestartCoreThread());
151	>	assertEquals(4, p.getPoolSize());
152	>	}
153	>	}
154	>
155	>	/**
156	>	* prestartAllCoreThreads starts all corePoolSize threads
157	>	*/
158	>	public void testPrestartAllCoreThreads() {
159	>	final ThreadPoolExecutor p =
160	>	new ThreadPoolExecutor(2, 6,
161	>	LONG_DELAY_MS, MILLISECONDS,
162	>	new ArrayBlockingQueue<Runnable>(10));
163	>	try (PoolCleaner cleaner = cleaner(p)) {
164	>	assertEquals(0, p.getPoolSize());
165	>	p.prestartAllCoreThreads();
166	>	assertEquals(2, p.getPoolSize());
167	>	p.prestartAllCoreThreads();
168	>	assertEquals(2, p.getPoolSize());
169	>	p.setCorePoolSize(4);
170	>	p.prestartAllCoreThreads();
171	>	assertEquals(4, p.getPoolSize());
172	>	p.prestartAllCoreThreads();
173	>	assertEquals(4, p.getPoolSize());
174	>	}
175	>	}
176	>
177	>	/**
178	>	* getCompletedTaskCount increases, but doesn't overestimate,
179	>	* when tasks complete
180	>	*/
181	>	public void testGetCompletedTaskCount() throws InterruptedException {
182	>	final ThreadPoolExecutor p =
183	>	new ThreadPoolExecutor(2, 2,
184	>	LONG_DELAY_MS, MILLISECONDS,
185	>	new ArrayBlockingQueue<Runnable>(10));
186	>	try (PoolCleaner cleaner = cleaner(p)) {
187	>	final CountDownLatch threadStarted = new CountDownLatch(1);
188	>	final CountDownLatch threadProceed = new CountDownLatch(1);
189	>	final CountDownLatch threadDone = new CountDownLatch(1);
190	>	assertEquals(0, p.getCompletedTaskCount());
191	>	p.execute(new CheckedRunnable() {
192	>	public void realRun() throws InterruptedException {
193	>	threadStarted.countDown();
194	>	assertEquals(0, p.getCompletedTaskCount());
195	>	await(threadProceed);
196	>	threadDone.countDown();
197	>	}});
198	>	await(threadStarted);
199	>	assertEquals(0, p.getCompletedTaskCount());
200	>	threadProceed.countDown();
201	>	await(threadDone);
202	>	long startTime = System.nanoTime();
203	>	while (p.getCompletedTaskCount() != 1) {
204	>	if (millisElapsedSince(startTime) > LONG_DELAY_MS)
205	>	fail("timed out");
206	>	Thread.yield();
207	>	}
208	>	}
209	>	}
210	>
211	>	/**
212	>	* getCorePoolSize returns size given in constructor if not otherwise set
213	>	*/
214	>	public void testGetCorePoolSize() {
215	>	final ThreadPoolExecutor p =
216	>	new ThreadPoolExecutor(1, 1,
217	>	LONG_DELAY_MS, MILLISECONDS,
218	>	new ArrayBlockingQueue<Runnable>(10));
219	>	try (PoolCleaner cleaner = cleaner(p)) {
220	>	assertEquals(1, p.getCorePoolSize());
221	>	}
222	>	}
223	>
224	>	/**
225	>	* getKeepAliveTime returns value given in constructor if not otherwise set
226	>	*/
227	>	public void testGetKeepAliveTime() {
228	>	final ThreadPoolExecutor p =
229	>	new ThreadPoolExecutor(2, 2,
230	>	1000, MILLISECONDS,
231	>	new ArrayBlockingQueue<Runnable>(10));
232	>	try (PoolCleaner cleaner = cleaner(p)) {
233	>	assertEquals(1, p.getKeepAliveTime(SECONDS));
234	>	}
235	>	}
236	>
237	>	/**
238	>	* getThreadFactory returns factory in constructor if not set
239	>	*/
240	>	public void testGetThreadFactory() {
241	>	ThreadFactory threadFactory = new SimpleThreadFactory();
242	>	final ThreadPoolExecutor p =
243	>	new ThreadPoolExecutor(1, 2,
244	>	LONG_DELAY_MS, MILLISECONDS,
245	>	new ArrayBlockingQueue<Runnable>(10),
246	>	threadFactory,
247	>	new NoOpREHandler());
248	>	try (PoolCleaner cleaner = cleaner(p)) {
249	>	assertSame(threadFactory, p.getThreadFactory());
250	>	}
251	>	}
252	>
253	>	/**
254	>	* setThreadFactory sets the thread factory returned by getThreadFactory
255	>	*/
256	>	public void testSetThreadFactory() {
257	>	final ThreadPoolExecutor p =
258	>	new ThreadPoolExecutor(1, 2,
259	>	LONG_DELAY_MS, MILLISECONDS,
260	>	new ArrayBlockingQueue<Runnable>(10));
261	>	try (PoolCleaner cleaner = cleaner(p)) {
262	>	ThreadFactory threadFactory = new SimpleThreadFactory();
263	>	p.setThreadFactory(threadFactory);
264	>	assertSame(threadFactory, p.getThreadFactory());
265	>	}
266	>	}
267	>
268	>	/**
269	>	* setThreadFactory(null) throws NPE
270	>	*/
271	>	public void testSetThreadFactoryNull() {
272	>	final ThreadPoolExecutor p =
273	>	new ThreadPoolExecutor(1, 2,
274	>	LONG_DELAY_MS, MILLISECONDS,
275	>	new ArrayBlockingQueue<Runnable>(10));
276	>	try (PoolCleaner cleaner = cleaner(p)) {
277	>	try {
278	>	p.setThreadFactory(null);
279	>	shouldThrow();
280	>	} catch (NullPointerException success) {}
281	>	}
282	>	}
283	>
284	>	/**
285	>	* The default rejected execution handler is AbortPolicy.
286	>	*/
287	>	public void testDefaultRejectedExecutionHandler() {
288	>	final ThreadPoolExecutor p =
289	>	new ThreadPoolExecutor(1, 2,
290	>	LONG_DELAY_MS, MILLISECONDS,
291	>	new ArrayBlockingQueue<Runnable>(10));
292	>	try (PoolCleaner cleaner = cleaner(p)) {
293	>	assertTrue(p.getRejectedExecutionHandler() instanceof AbortPolicy);
294	>	}
295	>	}
296	>
297	>	/**
298	>	* getRejectedExecutionHandler returns handler in constructor if not set
299	>	*/
300	>	public void testGetRejectedExecutionHandler() {
301	>	final RejectedExecutionHandler handler = new NoOpREHandler();
302	>	final ThreadPoolExecutor p =
303	>	new ThreadPoolExecutor(1, 2,
304	>	LONG_DELAY_MS, MILLISECONDS,
305	>	new ArrayBlockingQueue<Runnable>(10),
306	>	handler);
307	>	try (PoolCleaner cleaner = cleaner(p)) {
308	>	assertSame(handler, p.getRejectedExecutionHandler());
309	>	}
310	>	}
311	>
312	>	/**
313	>	* setRejectedExecutionHandler sets the handler returned by
314	>	* getRejectedExecutionHandler
315	>	*/
316	>	public void testSetRejectedExecutionHandler() {
317	>	final ThreadPoolExecutor p =
318	>	new ThreadPoolExecutor(1, 2,
319	>	LONG_DELAY_MS, MILLISECONDS,
320	>	new ArrayBlockingQueue<Runnable>(10));
321	>	try (PoolCleaner cleaner = cleaner(p)) {
322	>	RejectedExecutionHandler handler = new NoOpREHandler();
323	>	p.setRejectedExecutionHandler(handler);
324	>	assertSame(handler, p.getRejectedExecutionHandler());
325	>	}
326	>	}
327	>
328	>	/**
329	>	* setRejectedExecutionHandler(null) throws NPE
330	>	*/
331	>	public void testSetRejectedExecutionHandlerNull() {
332	>	final ThreadPoolExecutor p =
333	>	new ThreadPoolExecutor(1, 2,
334	>	LONG_DELAY_MS, MILLISECONDS,
335	>	new ArrayBlockingQueue<Runnable>(10));
336	>	try (PoolCleaner cleaner = cleaner(p)) {
337	>	try {
338	>	p.setRejectedExecutionHandler(null);
339	>	shouldThrow();
340	>	} catch (NullPointerException success) {}
341	>	}
342	>	}
343	>
344	>	/**
345	>	* getLargestPoolSize increases, but doesn't overestimate, when
346	>	* multiple threads active
347	>	*/
348	>	public void testGetLargestPoolSize() throws InterruptedException {
349	>	final int THREADS = 3;
350	>	final CountDownLatch done = new CountDownLatch(1);
351	>	final ThreadPoolExecutor p =
352	>	new ThreadPoolExecutor(THREADS, THREADS,
353	>	LONG_DELAY_MS, MILLISECONDS,
354	>	new ArrayBlockingQueue<Runnable>(10));
355	>	try (PoolCleaner cleaner = cleaner(p, done)) {
356	>	assertEquals(0, p.getLargestPoolSize());
357	>	final CountDownLatch threadsStarted = new CountDownLatch(THREADS);
358	>	for (int i = 0; i < THREADS; i++)
359	>	p.execute(new CheckedRunnable() {
360	>	public void realRun() throws InterruptedException {
361	>	threadsStarted.countDown();
362	>	await(done);
363	>	assertEquals(THREADS, p.getLargestPoolSize());
364	>	}});
365	>	await(threadsStarted);
366	>	assertEquals(THREADS, p.getLargestPoolSize());
367	>	}
368	>	assertEquals(THREADS, p.getLargestPoolSize());
369	>	}
370	>
371	>	/**
372	>	* getMaximumPoolSize returns value given in constructor if not
373	>	* otherwise set
374	>	*/
375	>	public void testGetMaximumPoolSize() {
376	>	final ThreadPoolExecutor p =
377	>	new ThreadPoolExecutor(2, 3,
378	>	LONG_DELAY_MS, MILLISECONDS,
379	>	new ArrayBlockingQueue<Runnable>(10));
380	>	try (PoolCleaner cleaner = cleaner(p)) {
381	>	assertEquals(3, p.getMaximumPoolSize());
382	>	p.setMaximumPoolSize(5);
383	>	assertEquals(5, p.getMaximumPoolSize());
384	>	p.setMaximumPoolSize(4);
385	>	assertEquals(4, p.getMaximumPoolSize());
386	>	}
387	>	}
388	>
389	>	/**
390	>	* getPoolSize increases, but doesn't overestimate, when threads
391	>	* become active
392	>	*/
393	>	public void testGetPoolSize() throws InterruptedException {
394	>	final CountDownLatch done = new CountDownLatch(1);
395	>	final ThreadPoolExecutor p =
396	>	new ThreadPoolExecutor(1, 1,
397	>	LONG_DELAY_MS, MILLISECONDS,
398	>	new ArrayBlockingQueue<Runnable>(10));
399	>	try (PoolCleaner cleaner = cleaner(p, done)) {
400	>	assertEquals(0, p.getPoolSize());
401	>	final CountDownLatch threadStarted = new CountDownLatch(1);
402	>	p.execute(new CheckedRunnable() {
403	>	public void realRun() throws InterruptedException {
404	>	threadStarted.countDown();
405	>	assertEquals(1, p.getPoolSize());
406	>	await(done);
407	>	}});
408	>	await(threadStarted);
409	>	assertEquals(1, p.getPoolSize());
410	>	}
411	>	}
412	>
413	>	/**
414	>	* getTaskCount increases, but doesn't overestimate, when tasks submitted
415	>	*/
416	>	public void testGetTaskCount() throws InterruptedException {
417	>	final int TASKS = 3;
418	>	final CountDownLatch done = new CountDownLatch(1);
419	>	final ThreadPoolExecutor p =
420	>	new ThreadPoolExecutor(1, 1,
421	>	LONG_DELAY_MS, MILLISECONDS,
422	>	new ArrayBlockingQueue<Runnable>(10));
423	>	try (PoolCleaner cleaner = cleaner(p, done)) {
424	>	final CountDownLatch threadStarted = new CountDownLatch(1);
425	>	assertEquals(0, p.getTaskCount());
426	>	assertEquals(0, p.getCompletedTaskCount());
427	>	p.execute(new CheckedRunnable() {
428	>	public void realRun() throws InterruptedException {
429	>	threadStarted.countDown();
430	>	await(done);
431	>	}});
432	>	await(threadStarted);
433	>	assertEquals(1, p.getTaskCount());
434	>	assertEquals(0, p.getCompletedTaskCount());
435	>	for (int i = 0; i < TASKS; i++) {
436	>	assertEquals(1 + i, p.getTaskCount());
437	>	p.execute(new CheckedRunnable() {
438	>	public void realRun() throws InterruptedException {
439	>	threadStarted.countDown();
440	>	assertEquals(1 + TASKS, p.getTaskCount());
441	>	await(done);
442	>	}});
443	>	}
444	>	assertEquals(1 + TASKS, p.getTaskCount());
445	>	assertEquals(0, p.getCompletedTaskCount());
446	>	}
447	>	assertEquals(1 + TASKS, p.getTaskCount());
448	>	assertEquals(1 + TASKS, p.getCompletedTaskCount());
449	>	}
450	>
451	>	/**
452	>	* isShutdown is false before shutdown, true after
453	>	*/
454	>	public void testIsShutdown() {
455	>	final ThreadPoolExecutor p =
456	>	new ThreadPoolExecutor(1, 1,
457	>	LONG_DELAY_MS, MILLISECONDS,
458	>	new ArrayBlockingQueue<Runnable>(10));
459	>	try (PoolCleaner cleaner = cleaner(p)) {
460	>	assertFalse(p.isShutdown());
461	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
462	>	assertTrue(p.isShutdown());
463	>	}
464	>	}
465	>
466	>	/**
467	>	* awaitTermination on a non-shutdown pool times out
468	>	*/
469	>	public void testAwaitTermination_timesOut() throws InterruptedException {
470	>	final ThreadPoolExecutor p =
471	>	new ThreadPoolExecutor(1, 1,
472	>	LONG_DELAY_MS, MILLISECONDS,
473	>	new ArrayBlockingQueue<Runnable>(10));
474	>	try (PoolCleaner cleaner = cleaner(p)) {
475	>	assertFalse(p.isTerminated());
476	>	assertFalse(p.awaitTermination(Long.MIN_VALUE, NANOSECONDS));
477	>	assertFalse(p.awaitTermination(Long.MIN_VALUE, MILLISECONDS));
478	>	assertFalse(p.awaitTermination(-1L, NANOSECONDS));
479	>	assertFalse(p.awaitTermination(-1L, MILLISECONDS));
480	>	assertFalse(p.awaitTermination(randomExpiredTimeout(),
481	>	randomTimeUnit()));
482	>	long timeoutNanos = 999999L;
483	>	long startTime = System.nanoTime();
484	>	assertFalse(p.awaitTermination(timeoutNanos, NANOSECONDS));
485	>	assertTrue(System.nanoTime() - startTime >= timeoutNanos);
486	>	assertFalse(p.isTerminated());
487	>	startTime = System.nanoTime();
488	>	long timeoutMillis = timeoutMillis();
489	>	assertFalse(p.awaitTermination(timeoutMillis, MILLISECONDS));
490	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
491	>	assertFalse(p.isTerminated());
492	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
493	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
494	>	assertTrue(p.isTerminated());
495	>	}
496	>	}
497	>
498	>	/**
499	>	* isTerminated is false before termination, true after
500	>	*/
501	>	public void testIsTerminated() throws InterruptedException {
502	>	final ThreadPoolExecutor p =
503	>	new ThreadPoolExecutor(1, 1,
504	>	LONG_DELAY_MS, MILLISECONDS,
505	>	new ArrayBlockingQueue<Runnable>(10));
506	>	try (PoolCleaner cleaner = cleaner(p)) {
507	>	final CountDownLatch threadStarted = new CountDownLatch(1);
508	>	final CountDownLatch done = new CountDownLatch(1);
509	>	assertFalse(p.isTerminating());
510	>	p.execute(new CheckedRunnable() {
511	>	public void realRun() throws InterruptedException {
512	>	assertFalse(p.isTerminating());
513	>	threadStarted.countDown();
514	>	await(done);
515	>	}});
516	>	await(threadStarted);
517	>	assertFalse(p.isTerminating());
518	>	done.countDown();
519	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
520	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
521	>	assertTrue(p.isTerminated());
522	>	assertFalse(p.isTerminating());
523	>	}
524	>	}
525	>
526	>	/**
527	>	* isTerminating is not true when running or when terminated
528	>	*/
529	>	public void testIsTerminating() throws InterruptedException {
530	>	final ThreadPoolExecutor p =
531	>	new ThreadPoolExecutor(1, 1,
532	>	LONG_DELAY_MS, MILLISECONDS,
533	>	new ArrayBlockingQueue<Runnable>(10));
534	>	try (PoolCleaner cleaner = cleaner(p)) {
535	>	final CountDownLatch threadStarted = new CountDownLatch(1);
536	>	final CountDownLatch done = new CountDownLatch(1);
537	>	assertFalse(p.isTerminating());
538	>	p.execute(new CheckedRunnable() {
539	>	public void realRun() throws InterruptedException {
540	>	assertFalse(p.isTerminating());
541	>	threadStarted.countDown();
542	>	await(done);
543	>	}});
544	>	await(threadStarted);
545	>	assertFalse(p.isTerminating());
546	>	done.countDown();
547	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
548	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
549	>	assertTrue(p.isTerminated());
550	>	assertFalse(p.isTerminating());
551	>	}
552		}
553
554		/**
555	<	*   getActiveCount gives correct values
555	>	* getQueue returns the work queue, which contains queued tasks
556		*/
557	<	public void testGetActiveCount(){
558	<	ThreadPoolExecutor two = new ThreadPoolExecutor(2, 2, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
559	<	assertEquals(0, two.getActiveCount());
560	<	two.execute(new MediumRunnable());
561	<	try{
562	<	Thread.sleep(SHORT_DELAY_MS);
563	<	} catch(Exception e){
564	<	fail("unexpected exception");
557	>	public void testGetQueue() throws InterruptedException {
558	>	final CountDownLatch done = new CountDownLatch(1);
559	>	final BlockingQueue<Runnable> q = new ArrayBlockingQueue<>(10);
560	>	final ThreadPoolExecutor p =
561	>	new ThreadPoolExecutor(1, 1,
562	>	LONG_DELAY_MS, MILLISECONDS,
563	>	q);
564	>	try (PoolCleaner cleaner = cleaner(p, done)) {
565	>	final CountDownLatch threadStarted = new CountDownLatch(1);
566	>	FutureTask[] rtasks = new FutureTask[5];
567	>	@SuppressWarnings("unchecked")
568	>	FutureTask<Boolean>[] tasks = (FutureTask<Boolean>[])rtasks;
569	>	for (int i = 0; i < tasks.length; i++) {
570	>	Callable<Boolean> task = new CheckedCallable<>() {
571	>	public Boolean realCall() throws InterruptedException {
572	>	threadStarted.countDown();
573	>	assertSame(q, p.getQueue());
574	>	await(done);
575	>	return Boolean.TRUE;
576	>	}};
577	>	tasks[i] = new FutureTask<>(task);
578	>	p.execute(tasks[i]);
579	>	}
580	>	await(threadStarted);
581	>	assertSame(q, p.getQueue());
582	>	assertFalse(q.contains(tasks[0]));
583	>	assertTrue(q.contains(tasks[tasks.length - 1]));
584	>	assertEquals(tasks.length - 1, q.size());
585		}
70	–	assertEquals(1, two.getActiveCount());
71	–	joinPool(two);
586		}
587	<
587	>
588		/**
589	<	*   getCompleteTaskCount gives correct values
589	>	* remove(task) removes queued task, and fails to remove active task
590		*/
591	<	public void testGetCompletedTaskCount(){
592	<	ThreadPoolExecutor two = new ThreadPoolExecutor(2, 2, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
593	<	assertEquals(0, two.getCompletedTaskCount());
594	<	two.execute(new ShortRunnable());
595	<	try{
596	<	Thread.sleep(MEDIUM_DELAY_MS);
597	<	} catch(Exception e){
598	<	fail("unexpected exception");
591	>	public void testRemove() throws InterruptedException {
592	>	final CountDownLatch done = new CountDownLatch(1);
593	>	BlockingQueue<Runnable> q = new ArrayBlockingQueue<>(10);
594	>	final ThreadPoolExecutor p =
595	>	new ThreadPoolExecutor(1, 1,
596	>	LONG_DELAY_MS, MILLISECONDS,
597	>	q);
598	>	try (PoolCleaner cleaner = cleaner(p, done)) {
599	>	Runnable[] tasks = new Runnable[6];
600	>	final CountDownLatch threadStarted = new CountDownLatch(1);
601	>	for (int i = 0; i < tasks.length; i++) {
602	>	tasks[i] = new CheckedRunnable() {
603	>	public void realRun() throws InterruptedException {
604	>	threadStarted.countDown();
605	>	await(done);
606	>	}};
607	>	p.execute(tasks[i]);
608	>	}
609	>	await(threadStarted);
610	>	assertFalse(p.remove(tasks[0]));
611	>	assertTrue(q.contains(tasks[4]));
612	>	assertTrue(q.contains(tasks[3]));
613	>	assertTrue(p.remove(tasks[4]));
614	>	assertFalse(p.remove(tasks[4]));
615	>	assertFalse(q.contains(tasks[4]));
616	>	assertTrue(q.contains(tasks[3]));
617	>	assertTrue(p.remove(tasks[3]));
618	>	assertFalse(q.contains(tasks[3]));
619		}
86	–	assertEquals(1, two.getCompletedTaskCount());
87	–	two.shutdown();
88	–	joinPool(two);
620		}
621	<
621	>
622	>	/**
623	>	* purge removes cancelled tasks from the queue
624	>	*/
625	>	public void testPurge() throws InterruptedException {
626	>	final CountDownLatch threadStarted = new CountDownLatch(1);
627	>	final CountDownLatch done = new CountDownLatch(1);
628	>	final BlockingQueue<Runnable> q = new ArrayBlockingQueue<>(10);
629	>	final ThreadPoolExecutor p =
630	>	new ThreadPoolExecutor(1, 1,
631	>	LONG_DELAY_MS, MILLISECONDS,
632	>	q);
633	>	try (PoolCleaner cleaner = cleaner(p, done)) {
634	>	FutureTask[] rtasks = new FutureTask[5];
635	>	@SuppressWarnings("unchecked")
636	>	FutureTask<Boolean>[] tasks = (FutureTask<Boolean>[])rtasks;
637	>	for (int i = 0; i < tasks.length; i++) {
638	>	Callable<Boolean> task = new CheckedCallable<>() {
639	>	public Boolean realCall() throws InterruptedException {
640	>	threadStarted.countDown();
641	>	await(done);
642	>	return Boolean.TRUE;
643	>	}};
644	>	tasks[i] = new FutureTask<>(task);
645	>	p.execute(tasks[i]);
646	>	}
647	>	await(threadStarted);
648	>	assertEquals(tasks.length, p.getTaskCount());
649	>	assertEquals(tasks.length - 1, q.size());
650	>	assertEquals(1L, p.getActiveCount());
651	>	assertEquals(0L, p.getCompletedTaskCount());
652	>	tasks[4].cancel(true);
653	>	tasks[3].cancel(false);
654	>	p.purge();
655	>	assertEquals(tasks.length - 3, q.size());
656	>	assertEquals(tasks.length - 2, p.getTaskCount());
657	>	p.purge();         // Nothing to do
658	>	assertEquals(tasks.length - 3, q.size());
659	>	assertEquals(tasks.length - 2, p.getTaskCount());
660	>	}
661	>	}
662	>
663	>	/**
664	>	* shutdownNow returns a list containing tasks that were not run,
665	>	* and those tasks are drained from the queue
666	>	*/
667	>	public void testShutdownNow() throws InterruptedException {
668	>	final int poolSize = 2;
669	>	final int count = 5;
670	>	final AtomicInteger ran = new AtomicInteger(0);
671	>	final ThreadPoolExecutor p =
672	>	new ThreadPoolExecutor(poolSize, poolSize,
673	>	LONG_DELAY_MS, MILLISECONDS,
674	>	new ArrayBlockingQueue<Runnable>(10));
675	>	final CountDownLatch threadsStarted = new CountDownLatch(poolSize);
676	>	Runnable waiter = new CheckedRunnable() { public void realRun() {
677	>	threadsStarted.countDown();
678	>	try {
679	>	MILLISECONDS.sleep(LONGER_DELAY_MS);
680	>	} catch (InterruptedException success) {}
681	>	ran.getAndIncrement();
682	>	}};
683	>	for (int i = 0; i < count; i++)
684	>	p.execute(waiter);
685	>	await(threadsStarted);
686	>	assertEquals(poolSize, p.getActiveCount());
687	>	assertEquals(0, p.getCompletedTaskCount());
688	>	final List<Runnable> queuedTasks;
689	>	try {
690	>	queuedTasks = p.shutdownNow();
691	>	} catch (SecurityException ok) {
692	>	return; // Allowed in case test doesn't have privs
693	>	}
694	>	assertTrue(p.isShutdown());
695	>	assertTrue(p.getQueue().isEmpty());
696	>	assertEquals(count - poolSize, queuedTasks.size());
697	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
698	>	assertTrue(p.isTerminated());
699	>	assertEquals(poolSize, ran.get());
700	>	assertEquals(poolSize, p.getCompletedTaskCount());
701	>	}
702	>
703	>	// Exception Tests
704	>
705	>	/**
706	>	* Constructor throws if corePoolSize argument is less than zero
707	>	*/
708	>	public void testConstructor1() {
709	>	try {
710	>	new ThreadPoolExecutor(-1, 1, 1L, SECONDS,
711	>	new ArrayBlockingQueue<Runnable>(10));
712	>	shouldThrow();
713	>	} catch (IllegalArgumentException success) {}
714	>	}
715	>
716	>	/**
717	>	* Constructor throws if maximumPoolSize is less than zero
718	>	*/
719	>	public void testConstructor2() {
720	>	try {
721	>	new ThreadPoolExecutor(1, -1, 1L, SECONDS,
722	>	new ArrayBlockingQueue<Runnable>(10));
723	>	shouldThrow();
724	>	} catch (IllegalArgumentException success) {}
725	>	}
726	>
727	>	/**
728	>	* Constructor throws if maximumPoolSize is equal to zero
729	>	*/
730	>	public void testConstructor3() {
731	>	try {
732	>	new ThreadPoolExecutor(1, 0, 1L, SECONDS,
733	>	new ArrayBlockingQueue<Runnable>(10));
734	>	shouldThrow();
735	>	} catch (IllegalArgumentException success) {}
736	>	}
737	>
738	>	/**
739	>	* Constructor throws if keepAliveTime is less than zero
740	>	*/
741	>	public void testConstructor4() {
742	>	try {
743	>	new ThreadPoolExecutor(1, 2, -1L, SECONDS,
744	>	new ArrayBlockingQueue<Runnable>(10));
745	>	shouldThrow();
746	>	} catch (IllegalArgumentException success) {}
747	>	}
748	>
749	>	/**
750	>	* Constructor throws if corePoolSize is greater than the maximumPoolSize
751	>	*/
752	>	public void testConstructor5() {
753	>	try {
754	>	new ThreadPoolExecutor(2, 1, 1L, SECONDS,
755	>	new ArrayBlockingQueue<Runnable>(10));
756	>	shouldThrow();
757	>	} catch (IllegalArgumentException success) {}
758	>	}
759	>
760	>	/**
761	>	* Constructor throws if workQueue is set to null
762	>	*/
763	>	public void testConstructorNullPointerException() {
764	>	try {
765	>	new ThreadPoolExecutor(1, 2, 1L, SECONDS,
766	>	(BlockingQueue<Runnable>) null);
767	>	shouldThrow();
768	>	} catch (NullPointerException success) {}
769	>	}
770	>
771	>	/**
772	>	* Constructor throws if corePoolSize argument is less than zero
773	>	*/
774	>	public void testConstructor6() {
775	>	try {
776	>	new ThreadPoolExecutor(-1, 1, 1L, SECONDS,
777	>	new ArrayBlockingQueue<Runnable>(10),
778	>	new SimpleThreadFactory());
779	>	shouldThrow();
780	>	} catch (IllegalArgumentException success) {}
781	>	}
782	>
783	>	/**
784	>	* Constructor throws if maximumPoolSize is less than zero
785	>	*/
786	>	public void testConstructor7() {
787	>	try {
788	>	new ThreadPoolExecutor(1, -1, 1L, SECONDS,
789	>	new ArrayBlockingQueue<Runnable>(10),
790	>	new SimpleThreadFactory());
791	>	shouldThrow();
792	>	} catch (IllegalArgumentException success) {}
793	>	}
794	>
795	>	/**
796	>	* Constructor throws if maximumPoolSize is equal to zero
797	>	*/
798	>	public void testConstructor8() {
799	>	try {
800	>	new ThreadPoolExecutor(1, 0, 1L, SECONDS,
801	>	new ArrayBlockingQueue<Runnable>(10),
802	>	new SimpleThreadFactory());
803	>	shouldThrow();
804	>	} catch (IllegalArgumentException success) {}
805	>	}
806	>
807	>	/**
808	>	* Constructor throws if keepAliveTime is less than zero
809	>	*/
810	>	public void testConstructor9() {
811	>	try {
812	>	new ThreadPoolExecutor(1, 2, -1L, SECONDS,
813	>	new ArrayBlockingQueue<Runnable>(10),
814	>	new SimpleThreadFactory());
815	>	shouldThrow();
816	>	} catch (IllegalArgumentException success) {}
817	>	}
818	>
819	>	/**
820	>	* Constructor throws if corePoolSize is greater than the maximumPoolSize
821	>	*/
822	>	public void testConstructor10() {
823	>	try {
824	>	new ThreadPoolExecutor(2, 1, 1L, SECONDS,
825	>	new ArrayBlockingQueue<Runnable>(10),
826	>	new SimpleThreadFactory());
827	>	shouldThrow();
828	>	} catch (IllegalArgumentException success) {}
829	>	}
830	>
831	>	/**
832	>	* Constructor throws if workQueue is set to null
833	>	*/
834	>	public void testConstructorNullPointerException2() {
835	>	try {
836	>	new ThreadPoolExecutor(1, 2, 1L, SECONDS,
837	>	(BlockingQueue<Runnable>) null,
838	>	new SimpleThreadFactory());
839	>	shouldThrow();
840	>	} catch (NullPointerException success) {}
841	>	}
842	>
843	>	/**
844	>	* Constructor throws if threadFactory is set to null
845	>	*/
846	>	public void testConstructorNullPointerException3() {
847	>	try {
848	>	new ThreadPoolExecutor(1, 2, 1L, SECONDS,
849	>	new ArrayBlockingQueue<Runnable>(10),
850	>	(ThreadFactory) null);
851	>	shouldThrow();
852	>	} catch (NullPointerException success) {}
853	>	}
854	>
855	>	/**
856	>	* Constructor throws if corePoolSize argument is less than zero
857	>	*/
858	>	public void testConstructor11() {
859	>	try {
860	>	new ThreadPoolExecutor(-1, 1, 1L, SECONDS,
861	>	new ArrayBlockingQueue<Runnable>(10),
862	>	new NoOpREHandler());
863	>	shouldThrow();
864	>	} catch (IllegalArgumentException success) {}
865	>	}
866	>
867	>	/**
868	>	* Constructor throws if maximumPoolSize is less than zero
869	>	*/
870	>	public void testConstructor12() {
871	>	try {
872	>	new ThreadPoolExecutor(1, -1, 1L, SECONDS,
873	>	new ArrayBlockingQueue<Runnable>(10),
874	>	new NoOpREHandler());
875	>	shouldThrow();
876	>	} catch (IllegalArgumentException success) {}
877	>	}
878	>
879	>	/**
880	>	* Constructor throws if maximumPoolSize is equal to zero
881	>	*/
882	>	public void testConstructor13() {
883	>	try {
884	>	new ThreadPoolExecutor(1, 0, 1L, SECONDS,
885	>	new ArrayBlockingQueue<Runnable>(10),
886	>	new NoOpREHandler());
887	>	shouldThrow();
888	>	} catch (IllegalArgumentException success) {}
889	>	}
890	>
891	>	/**
892	>	* Constructor throws if keepAliveTime is less than zero
893	>	*/
894	>	public void testConstructor14() {
895	>	try {
896	>	new ThreadPoolExecutor(1, 2, -1L, SECONDS,
897	>	new ArrayBlockingQueue<Runnable>(10),
898	>	new NoOpREHandler());
899	>	shouldThrow();
900	>	} catch (IllegalArgumentException success) {}
901	>	}
902	>
903	>	/**
904	>	* Constructor throws if corePoolSize is greater than the maximumPoolSize
905	>	*/
906	>	public void testConstructor15() {
907	>	try {
908	>	new ThreadPoolExecutor(2, 1, 1L, SECONDS,
909	>	new ArrayBlockingQueue<Runnable>(10),
910	>	new NoOpREHandler());
911	>	shouldThrow();
912	>	} catch (IllegalArgumentException success) {}
913	>	}
914	>
915	>	/**
916	>	* Constructor throws if workQueue is set to null
917	>	*/
918	>	public void testConstructorNullPointerException4() {
919	>	try {
920	>	new ThreadPoolExecutor(1, 2, 1L, SECONDS,
921	>	(BlockingQueue<Runnable>) null,
922	>	new NoOpREHandler());
923	>	shouldThrow();
924	>	} catch (NullPointerException success) {}
925	>	}
926	>
927	>	/**
928	>	* Constructor throws if handler is set to null
929	>	*/
930	>	public void testConstructorNullPointerException5() {
931	>	try {
932	>	new ThreadPoolExecutor(1, 2, 1L, SECONDS,
933	>	new ArrayBlockingQueue<Runnable>(10),
934	>	(RejectedExecutionHandler) null);
935	>	shouldThrow();
936	>	} catch (NullPointerException success) {}
937	>	}
938	>
939		/**
940	<	*   getCorePoolSize gives correct values
940	>	* Constructor throws if corePoolSize argument is less than zero
941		*/
942	<	public void testGetCorePoolSize(){
943	<	ThreadPoolExecutor one = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
944	<	assertEquals(1, one.getCorePoolSize());
945	<	joinPool(one);
942	>	public void testConstructor16() {
943	>	try {
944	>	new ThreadPoolExecutor(-1, 1, 1L, SECONDS,
945	>	new ArrayBlockingQueue<Runnable>(10),
946	>	new SimpleThreadFactory(),
947	>	new NoOpREHandler());
948	>	shouldThrow();
949	>	} catch (IllegalArgumentException success) {}
950		}
951	<
951	>
952		/**
953	<	*   getKeepAliveTime gives correct values
953	>	* Constructor throws if maximumPoolSize is less than zero
954		*/
955	<	public void testGetKeepAliveTime(){
956	<	ThreadPoolExecutor two = new ThreadPoolExecutor(2, 2, 1000, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
957	<	assertEquals(1, two.getKeepAliveTime(TimeUnit.SECONDS));
958	<	joinPool(two);
955	>	public void testConstructor17() {
956	>	try {
957	>	new ThreadPoolExecutor(1, -1, 1L, SECONDS,
958	>	new ArrayBlockingQueue<Runnable>(10),
959	>	new SimpleThreadFactory(),
960	>	new NoOpREHandler());
961	>	shouldThrow();
962	>	} catch (IllegalArgumentException success) {}
963		}
964	<
964	>
965		/**
966	<	*   getLargestPoolSize gives correct values
966	>	* Constructor throws if maximumPoolSize is equal to zero
967		*/
968	<	public void testGetLargestPoolSize(){
113	<	ThreadPoolExecutor two = new ThreadPoolExecutor(2, 2, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
968	>	public void testConstructor18() {
969		try {
970	<	assertEquals(0, two.getLargestPoolSize());
971	<	two.execute(new MediumRunnable());
972	<	two.execute(new MediumRunnable());
973	<	Thread.sleep(SHORT_DELAY_MS);
974	<	assertEquals(2, two.getLargestPoolSize());
975	<	} catch(Exception e){
121	<	fail("unexpected exception");
122	<	}
123	<	joinPool(two);
970	>	new ThreadPoolExecutor(1, 0, 1L, SECONDS,
971	>	new ArrayBlockingQueue<Runnable>(10),
972	>	new SimpleThreadFactory(),
973	>	new NoOpREHandler());
974	>	shouldThrow();
975	>	} catch (IllegalArgumentException success) {}
976		}
977	<
977	>
978		/**
979	<	*   getMaximumPoolSize gives correct values
979	>	* Constructor throws if keepAliveTime is less than zero
980		*/
981	<	public void testGetMaximumPoolSize(){
982	<	ThreadPoolExecutor two = new ThreadPoolExecutor(2, 2, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
983	<	assertEquals(2, two.getMaximumPoolSize());
984	<	joinPool(two);
981	>	public void testConstructor19() {
982	>	try {
983	>	new ThreadPoolExecutor(1, 2, -1L, SECONDS,
984	>	new ArrayBlockingQueue<Runnable>(10),
985	>	new SimpleThreadFactory(),
986	>	new NoOpREHandler());
987	>	shouldThrow();
988	>	} catch (IllegalArgumentException success) {}
989		}
990	<
990	>
991		/**
992	<	*   getPoolSize gives correct values
992	>	* Constructor throws if corePoolSize is greater than the maximumPoolSize
993		*/
994	<	public void testGetPoolSize(){
995	<	ThreadPoolExecutor one = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
996	<	assertEquals(0, one.getPoolSize());
997	<	one.execute(new MediumRunnable());
998	<	assertEquals(1, one.getPoolSize());
999	<	joinPool(one);
994	>	public void testConstructor20() {
995	>	try {
996	>	new ThreadPoolExecutor(2, 1, 1L, SECONDS,
997	>	new ArrayBlockingQueue<Runnable>(10),
998	>	new SimpleThreadFactory(),
999	>	new NoOpREHandler());
1000	>	shouldThrow();
1001	>	} catch (IllegalArgumentException success) {}
1002		}
1003	<
1003	>
1004		/**
1005	<	*   getTaskCount gives correct values
1005	>	* Constructor throws if workQueue is null
1006		*/
1007	<	public void testGetTaskCount(){
150	<	ThreadPoolExecutor one = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1007	>	public void testConstructorNullPointerException6() {
1008		try {
1009	<	assertEquals(0, one.getTaskCount());
1010	<	for(int i = 0; i < 5; i++)
1011	<	one.execute(new MediumRunnable());
1012	<	Thread.sleep(SHORT_DELAY_MS);
1013	<	assertEquals(5, one.getTaskCount());
1014	<	} catch(Exception e){
158	<	fail("unexpected exception");
159	<	}
160	<	joinPool(one);
1009	>	new ThreadPoolExecutor(1, 2, 1L, SECONDS,
1010	>	(BlockingQueue<Runnable>) null,
1011	>	new SimpleThreadFactory(),
1012	>	new NoOpREHandler());
1013	>	shouldThrow();
1014	>	} catch (NullPointerException success) {}
1015		}
1016	<
1016	>
1017		/**
1018	<	*   isShutDown gives correct values
1018	>	* Constructor throws if handler is null
1019		*/
1020	<	public void testIsShutdown(){
1021	<
1022	<	ThreadPoolExecutor one = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1023	<	assertFalse(one.isShutdown());
1024	<	one.shutdown();
1025	<	assertTrue(one.isShutdown());
1026	<	joinPool(one);
1020	>	public void testConstructorNullPointerException7() {
1021	>	try {
1022	>	new ThreadPoolExecutor(1, 2, 1L, SECONDS,
1023	>	new ArrayBlockingQueue<Runnable>(10),
1024	>	new SimpleThreadFactory(),
1025	>	(RejectedExecutionHandler) null);
1026	>	shouldThrow();
1027	>	} catch (NullPointerException success) {}
1028		}
1029
175	–
1030		/**
1031	<	*   isTerminated gives correct values
178	<	*  Makes sure termination does not take an innapropriate
179	<	*  amount of time
1031	>	* Constructor throws if ThreadFactory is null
1032		*/
1033	<	public void testIsTerminated(){
182	<	ThreadPoolExecutor one = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1033	>	public void testConstructorNullPointerException8() {
1034		try {
1035	<	one.execute(new MediumRunnable());
1036	<	} finally {
1037	<	one.shutdown();
1035	>	new ThreadPoolExecutor(1, 2, 1L, SECONDS,
1036	>	new ArrayBlockingQueue<Runnable>(10),
1037	>	(ThreadFactory) null,
1038	>	new NoOpREHandler());
1039	>	shouldThrow();
1040	>	} catch (NullPointerException success) {}
1041	>	}
1042	>
1043	>	/**
1044	>	* get of submitted callable throws InterruptedException if interrupted
1045	>	*/
1046	>	public void testInterruptedSubmit() throws InterruptedException {
1047	>	final CountDownLatch done = new CountDownLatch(1);
1048	>	final ThreadPoolExecutor p =
1049	>	new ThreadPoolExecutor(1, 1,
1050	>	60, SECONDS,
1051	>	new ArrayBlockingQueue<Runnable>(10));
1052	>
1053	>	try (PoolCleaner cleaner = cleaner(p, done)) {
1054	>	final CountDownLatch threadStarted = new CountDownLatch(1);
1055	>	Thread t = newStartedThread(new CheckedInterruptedRunnable() {
1056	>	public void realRun() throws Exception {
1057	>	Callable<Boolean> task = new CheckedCallable<>() {
1058	>	public Boolean realCall() throws InterruptedException {
1059	>	threadStarted.countDown();
1060	>	await(done);
1061	>	return Boolean.TRUE;
1062	>	}};
1063	>	p.submit(task).get();
1064	>	}});
1065	>
1066	>	await(threadStarted); // ensure quiescence
1067	>	t.interrupt();
1068	>	awaitTermination(t);
1069		}
188	–	try {
189	–	assertTrue(one.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
190	–	assertTrue(one.isTerminated());
191	–	} catch(Exception e){
192	–	fail("unexpected exception");
193	–	}
1070		}
1071
1072		/**
1073	<	*   purge correctly removes cancelled tasks
1074	<	*  from the queue
1073	>	* Submitted tasks are rejected when saturated or shutdown
1074	>	*/
1075	>	public void testSubmittedTasksRejectedWhenSaturatedOrShutdown() throws InterruptedException {
1076	>	final ThreadPoolExecutor p = new ThreadPoolExecutor(
1077	>	1, 1, 1, SECONDS, new ArrayBlockingQueue<Runnable>(1));
1078	>	final int saturatedSize = saturatedSize(p);
1079	>	final ThreadLocalRandom rnd = ThreadLocalRandom.current();
1080	>	final CountDownLatch threadsStarted = new CountDownLatch(p.getMaximumPoolSize());
1081	>	final CountDownLatch done = new CountDownLatch(1);
1082	>	final Runnable r = () -> {
1083	>	threadsStarted.countDown();
1084	>	for (;;) {
1085	>	try {
1086	>	done.await();
1087	>	return;
1088	>	} catch (InterruptedException shutdownNowDeliberatelyIgnored) {}
1089	>	}};
1090	>	final Callable<Boolean> c = () -> {
1091	>	threadsStarted.countDown();
1092	>	for (;;) {
1093	>	try {
1094	>	done.await();
1095	>	return Boolean.TRUE;
1096	>	} catch (InterruptedException shutdownNowDeliberatelyIgnored) {}
1097	>	}};
1098	>	final boolean shutdownNow = rnd.nextBoolean();
1099	>
1100	>	try (PoolCleaner cleaner = cleaner(p, done)) {
1101	>	// saturate
1102	>	for (int i = saturatedSize; i--> 0; ) {
1103	>	switch (rnd.nextInt(4)) {
1104	>	case 0: p.execute(r); break;
1105	>	case 1: assertFalse(p.submit(r).isDone()); break;
1106	>	case 2: assertFalse(p.submit(r, Boolean.TRUE).isDone()); break;
1107	>	case 3: assertFalse(p.submit(c).isDone()); break;
1108	>	}
1109	>	}
1110	>
1111	>	await(threadsStarted);
1112	>	assertTaskSubmissionsAreRejected(p);
1113	>
1114	>	if (shutdownNow)
1115	>	p.shutdownNow();
1116	>	else
1117	>	p.shutdown();
1118	>	// Pool is shutdown, but not yet terminated
1119	>	assertTaskSubmissionsAreRejected(p);
1120	>	assertFalse(p.isTerminated());
1121	>
1122	>	done.countDown();   // release blocking tasks
1123	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
1124	>
1125	>	assertTaskSubmissionsAreRejected(p);
1126	>	}
1127	>	assertEquals(saturatedSize(p)
1128	>	- (shutdownNow ? p.getQueue().remainingCapacity() : 0),
1129	>	p.getCompletedTaskCount());
1130	>	}
1131	>
1132	>	/**
1133	>	* executor using DiscardOldestPolicy drops oldest task if saturated.
1134		*/
1135	<	public void testPurge(){
1136	<	ThreadPoolExecutor one = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1137	<	CancellableTask[] tasks = new CancellableTask[5];
1138	<	for(int i = 0; i < 5; i++){
1139	<	tasks[i] = new CancellableTask(new MediumPossiblyInterruptedRunnable());
1140	<	one.execute(tasks[i]);
1135	>	public void testSaturatedExecute_DiscardOldestPolicy() {
1136	>	final CountDownLatch done = new CountDownLatch(1);
1137	>	LatchAwaiter r1 = awaiter(done);
1138	>	LatchAwaiter r2 = awaiter(done);
1139	>	LatchAwaiter r3 = awaiter(done);
1140	>	final ThreadPoolExecutor p =
1141	>	new ThreadPoolExecutor(1, 1,
1142	>	LONG_DELAY_MS, MILLISECONDS,
1143	>	new ArrayBlockingQueue<Runnable>(1),
1144	>	new DiscardOldestPolicy());
1145	>	try (PoolCleaner cleaner = cleaner(p, done)) {
1146	>	assertEquals(LatchAwaiter.NEW, r1.state);
1147	>	assertEquals(LatchAwaiter.NEW, r2.state);
1148	>	assertEquals(LatchAwaiter.NEW, r3.state);
1149	>	p.execute(r1);
1150	>	p.execute(r2);
1151	>	assertTrue(p.getQueue().contains(r2));
1152	>	p.execute(r3);
1153	>	assertFalse(p.getQueue().contains(r2));
1154	>	assertTrue(p.getQueue().contains(r3));
1155	>	}
1156	>	assertEquals(LatchAwaiter.DONE, r1.state);
1157	>	assertEquals(LatchAwaiter.NEW, r2.state);
1158	>	assertEquals(LatchAwaiter.DONE, r3.state);
1159	>	}
1160	>
1161	>	/**
1162	>	* execute using DiscardOldestPolicy drops task on shutdown
1163	>	*/
1164	>	public void testDiscardOldestOnShutdown() {
1165	>	final ThreadPoolExecutor p =
1166	>	new ThreadPoolExecutor(1, 1,
1167	>	LONG_DELAY_MS, MILLISECONDS,
1168	>	new ArrayBlockingQueue<Runnable>(1),
1169	>	new DiscardOldestPolicy());
1170	>
1171	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
1172	>	try (PoolCleaner cleaner = cleaner(p)) {
1173	>	TrackedNoOpRunnable r = new TrackedNoOpRunnable();
1174	>	p.execute(r);
1175	>	assertFalse(r.done);
1176		}
207	–	tasks[4].cancel(true);
208	–	tasks[3].cancel(true);
209	–	one.purge();
210	–	long count = one.getTaskCount();
211	–	assertTrue(count >= 2 && count < 5);
212	–	joinPool(one);
1177		}
1178
1179		/**
1180	<	*   shutDownNow returns a list
217	<	*  containing the correct number of elements
1180	>	* Submitting null tasks throws NullPointerException
1181		*/
1182	<	public void testShutDownNow(){
1183	<	ThreadPoolExecutor one = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1184	<	List l;
1185	<	try {
1186	<	for(int i = 0; i < 5; i++)
1187	<	one.execute(new MediumPossiblyInterruptedRunnable());
1182	>	public void testNullTaskSubmission() {
1183	>	final ThreadPoolExecutor p =
1184	>	new ThreadPoolExecutor(1, 2,
1185	>	1L, SECONDS,
1186	>	new ArrayBlockingQueue<Runnable>(10));
1187	>	try (PoolCleaner cleaner = cleaner(p)) {
1188	>	assertNullTaskSubmissionThrowsNullPointerException(p);
1189		}
1190	<	finally {
1191	<	l = one.shutdownNow();
1190	>	}
1191	>
1192	>	/**
1193	>	* setCorePoolSize of negative value throws IllegalArgumentException
1194	>	*/
1195	>	public void testCorePoolSizeIllegalArgumentException() {
1196	>	final ThreadPoolExecutor p =
1197	>	new ThreadPoolExecutor(1, 2,
1198	>	LONG_DELAY_MS, MILLISECONDS,
1199	>	new ArrayBlockingQueue<Runnable>(10));
1200	>	try (PoolCleaner cleaner = cleaner(p)) {
1201	>	try {
1202	>	p.setCorePoolSize(-1);
1203	>	shouldThrow();
1204	>	} catch (IllegalArgumentException success) {}
1205		}
229	–	assertTrue(one.isShutdown());
230	–	assertTrue(l.size() <= 4);
1206		}
1207
1208	<	// Exception Tests
1209	<
1208	>	/**
1209	>	* setMaximumPoolSize(int) throws IllegalArgumentException if
1210	>	* given a value less the core pool size
1211	>	*/
1212	>	public void testMaximumPoolSizeIllegalArgumentException() {
1213	>	final ThreadPoolExecutor p =
1214	>	new ThreadPoolExecutor(2, 3,
1215	>	LONG_DELAY_MS, MILLISECONDS,
1216	>	new ArrayBlockingQueue<Runnable>(10));
1217	>	try (PoolCleaner cleaner = cleaner(p)) {
1218	>	try {
1219	>	p.setMaximumPoolSize(1);
1220	>	shouldThrow();
1221	>	} catch (IllegalArgumentException success) {}
1222	>	}
1223	>	}
1224
1225	<	/** Throws if corePoolSize argument is less than zero */
1226	<	public void testConstructor1() {
1227	<	try{
1228	<	new ThreadPoolExecutor(-1,1,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1229	<	fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");
1225	>	/**
1226	>	* setMaximumPoolSize throws IllegalArgumentException
1227	>	* if given a negative value
1228	>	*/
1229	>	public void testMaximumPoolSizeIllegalArgumentException2() {
1230	>	final ThreadPoolExecutor p =
1231	>	new ThreadPoolExecutor(2, 3,
1232	>	LONG_DELAY_MS, MILLISECONDS,
1233	>	new ArrayBlockingQueue<Runnable>(10));
1234	>	try (PoolCleaner cleaner = cleaner(p)) {
1235	>	try {
1236	>	p.setMaximumPoolSize(-1);
1237	>	shouldThrow();
1238	>	} catch (IllegalArgumentException success) {}
1239		}
242	–	catch (IllegalArgumentException success){}
1240		}
1241	<
1242	<	/** Throws if maximumPoolSize is less than zero */
1243	<	public void testConstructor2() {
1244	<	try{
1245	<	new ThreadPoolExecutor(1,-1,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1246	<	fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");
1241	>
1242	>	/**
1243	>	* Configuration changes that allow core pool size greater than
1244	>	* max pool size result in IllegalArgumentException.
1245	>	*/
1246	>	public void testPoolSizeInvariants() {
1247	>	final ThreadPoolExecutor p =
1248	>	new ThreadPoolExecutor(1, 1,
1249	>	LONG_DELAY_MS, MILLISECONDS,
1250	>	new ArrayBlockingQueue<Runnable>(10));
1251	>	try (PoolCleaner cleaner = cleaner(p)) {
1252	>	for (int s = 1; s < 5; s++) {
1253	>	p.setMaximumPoolSize(s);
1254	>	p.setCorePoolSize(s);
1255	>	try {
1256	>	p.setMaximumPoolSize(s - 1);
1257	>	shouldThrow();
1258	>	} catch (IllegalArgumentException success) {}
1259	>	assertEquals(s, p.getCorePoolSize());
1260	>	assertEquals(s, p.getMaximumPoolSize());
1261	>	try {
1262	>	p.setCorePoolSize(s + 1);
1263	>	shouldThrow();
1264	>	} catch (IllegalArgumentException success) {}
1265	>	assertEquals(s, p.getCorePoolSize());
1266	>	assertEquals(s, p.getMaximumPoolSize());
1267	>	}
1268		}
251	–	catch (IllegalArgumentException success){}
1269		}
1270	<
1271	<	/** Throws if maximumPoolSize is equal to zero */
1272	<	public void testConstructor3() {
1273	<	try{
1274	<	new ThreadPoolExecutor(1,0,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1275	<	fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");
1270	>
1271	>	/**
1272	>	* setKeepAliveTime throws IllegalArgumentException
1273	>	* when given a negative value
1274	>	*/
1275	>	public void testKeepAliveTimeIllegalArgumentException() {
1276	>	final ThreadPoolExecutor p =
1277	>	new ThreadPoolExecutor(2, 3,
1278	>	LONG_DELAY_MS, MILLISECONDS,
1279	>	new ArrayBlockingQueue<Runnable>(10));
1280	>	try (PoolCleaner cleaner = cleaner(p)) {
1281	>	try {
1282	>	p.setKeepAliveTime(-1, MILLISECONDS);
1283	>	shouldThrow();
1284	>	} catch (IllegalArgumentException success) {}
1285		}
260	–	catch (IllegalArgumentException success){}
1286		}
1287
1288	<	/** Throws if keepAliveTime is less than zero */
1289	<	public void testConstructor4() {
1290	<	try{
1291	<	new ThreadPoolExecutor(1,2,-1L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1292	<	fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");
1288	>	/**
1289	>	* terminated() is called on termination
1290	>	*/
1291	>	public void testTerminated() {
1292	>	ExtendedTPE p = new ExtendedTPE();
1293	>	try (PoolCleaner cleaner = cleaner(p)) {
1294	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
1295	>	assertTrue(p.terminatedCalled());
1296	>	assertTrue(p.isShutdown());
1297		}
269	–	catch (IllegalArgumentException success){}
1298		}
1299
1300	<	/** Throws if corePoolSize is greater than the maximumPoolSize */
1301	<	public void testConstructor5() {
1302	<	try{
1303	<	new ThreadPoolExecutor(2,1,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1304	<	fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");
1300	>	/**
1301	>	* beforeExecute and afterExecute are called when executing task
1302	>	*/
1303	>	public void testBeforeAfter() throws InterruptedException {
1304	>	ExtendedTPE p = new ExtendedTPE();
1305	>	try (PoolCleaner cleaner = cleaner(p)) {
1306	>	final CountDownLatch done = new CountDownLatch(1);
1307	>	p.execute(new CheckedRunnable() {
1308	>	public void realRun() {
1309	>	done.countDown();
1310	>	}});
1311	>	await(p.afterCalled);
1312	>	assertEquals(0, done.getCount());
1313	>	assertTrue(p.afterCalled());
1314	>	assertTrue(p.beforeCalled());
1315		}
278	–	catch (IllegalArgumentException success){}
1316		}
1317	<
1318	<	/** Throws if workQueue is set to null */
1319	<	public void testNullPointerException() {
1320	<	try{
1321	<	new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,null);
1322	<	fail("ThreadPoolExecutor constructor should throw a NullPointerException");
1317	>
1318	>	/**
1319	>	* completed submit of callable returns result
1320	>	*/
1321	>	public void testSubmitCallable() throws Exception {
1322	>	final ExecutorService e =
1323	>	new ThreadPoolExecutor(2, 2,
1324	>	LONG_DELAY_MS, MILLISECONDS,
1325	>	new ArrayBlockingQueue<Runnable>(10));
1326	>	try (PoolCleaner cleaner = cleaner(e)) {
1327	>	Future<String> future = e.submit(new StringTask());
1328	>	String result = future.get();
1329	>	assertSame(TEST_STRING, result);
1330		}
287	–	catch (NullPointerException success){}
1331		}
289	–
1332
1333	<
1334	<	/** Throws if corePoolSize argument is less than zero */
1335	<	public void testConstructor6() {
1336	<	try{
1337	<	new ThreadPoolExecutor(-1,1,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory());
1338	<	fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");
1339	<	} catch (IllegalArgumentException success){}
1333	>	/**
1334	>	* completed submit of runnable returns successfully
1335	>	*/
1336	>	public void testSubmitRunnable() throws Exception {
1337	>	final ExecutorService e =
1338	>	new ThreadPoolExecutor(2, 2,
1339	>	LONG_DELAY_MS, MILLISECONDS,
1340	>	new ArrayBlockingQueue<Runnable>(10));
1341	>	try (PoolCleaner cleaner = cleaner(e)) {
1342	>	Future<?> future = e.submit(new NoOpRunnable());
1343	>	future.get();
1344	>	assertTrue(future.isDone());
1345	>	}
1346		}
1347	<
1348	<	/** Throws if maximumPoolSize is less than zero */
1349	<	public void testConstructor7() {
1350	<	try{
1351	<	new ThreadPoolExecutor(1,-1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory());
1352	<	fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");
1347	>
1348	>	/**
1349	>	* completed submit of (runnable, result) returns result
1350	>	*/
1351	>	public void testSubmitRunnable2() throws Exception {
1352	>	final ExecutorService e =
1353	>	new ThreadPoolExecutor(2, 2,
1354	>	LONG_DELAY_MS, MILLISECONDS,
1355	>	new ArrayBlockingQueue<Runnable>(10));
1356	>	try (PoolCleaner cleaner = cleaner(e)) {
1357	>	Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING);
1358	>	String result = future.get();
1359	>	assertSame(TEST_STRING, result);
1360		}
306	–	catch (IllegalArgumentException success){}
1361		}
1362
1363	<	/** Throws if maximumPoolSize is equal to zero */
1364	<	public void testConstructor8() {
1365	<	try{
1366	<	new ThreadPoolExecutor(1,0,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory());
1367	<	fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");
1363	>	/**
1364	>	* invokeAny(null) throws NPE
1365	>	*/
1366	>	public void testInvokeAny1() throws Exception {
1367	>	final ExecutorService e =
1368	>	new ThreadPoolExecutor(2, 2,
1369	>	LONG_DELAY_MS, MILLISECONDS,
1370	>	new ArrayBlockingQueue<Runnable>(10));
1371	>	try (PoolCleaner cleaner = cleaner(e)) {
1372	>	try {
1373	>	e.invokeAny(null);
1374	>	shouldThrow();
1375	>	} catch (NullPointerException success) {}
1376		}
315	–	catch (IllegalArgumentException success){}
1377		}
1378
1379	<	/** Throws if keepAliveTime is less than zero */
1380	<	public void testConstructor9() {
1381	<	try{
1382	<	new ThreadPoolExecutor(1,2,-1L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory());
1383	<	fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");
1379	>	/**
1380	>	* invokeAny(empty collection) throws IllegalArgumentException
1381	>	*/
1382	>	public void testInvokeAny2() throws Exception {
1383	>	final ExecutorService e =
1384	>	new ThreadPoolExecutor(2, 2,
1385	>	LONG_DELAY_MS, MILLISECONDS,
1386	>	new ArrayBlockingQueue<Runnable>(10));
1387	>	try (PoolCleaner cleaner = cleaner(e)) {
1388	>	try {
1389	>	e.invokeAny(new ArrayList<Callable<String>>());
1390	>	shouldThrow();
1391	>	} catch (IllegalArgumentException success) {}
1392		}
324	–	catch (IllegalArgumentException success){}
1393		}
1394
1395	<	/** Throws if corePoolSize is greater than the maximumPoolSize */
1396	<	public void testConstructor10() {
1397	<	try{
1398	<	new ThreadPoolExecutor(2,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory());
1399	<	fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");
1395	>	/**
1396	>	* invokeAny(c) throws NPE if c has null elements
1397	>	*/
1398	>	public void testInvokeAny3() throws Exception {
1399	>	final CountDownLatch latch = new CountDownLatch(1);
1400	>	final ExecutorService e =
1401	>	new ThreadPoolExecutor(2, 2,
1402	>	LONG_DELAY_MS, MILLISECONDS,
1403	>	new ArrayBlockingQueue<Runnable>(10));
1404	>	try (PoolCleaner cleaner = cleaner(e)) {
1405	>	List<Callable<String>> l = new ArrayList<>();
1406	>	l.add(latchAwaitingStringTask(latch));
1407	>	l.add(null);
1408	>	try {
1409	>	e.invokeAny(l);
1410	>	shouldThrow();
1411	>	} catch (NullPointerException success) {}
1412	>	latch.countDown();
1413	>	}
1414	>	}
1415	>
1416	>	/**
1417	>	* invokeAny(c) throws ExecutionException if no task completes
1418	>	*/
1419	>	public void testInvokeAny4() throws Exception {
1420	>	final ExecutorService e =
1421	>	new ThreadPoolExecutor(2, 2,
1422	>	LONG_DELAY_MS, MILLISECONDS,
1423	>	new ArrayBlockingQueue<Runnable>(10));
1424	>	try (PoolCleaner cleaner = cleaner(e)) {
1425	>	List<Callable<String>> l = new ArrayList<>();
1426	>	l.add(new NPETask());
1427	>	try {
1428	>	e.invokeAny(l);
1429	>	shouldThrow();
1430	>	} catch (ExecutionException success) {
1431	>	assertTrue(success.getCause() instanceof NullPointerException);
1432	>	}
1433		}
333	–	catch (IllegalArgumentException success){}
1434		}
1435
1436	<	/** Throws if workQueue is set to null */
1437	<	public void testNullPointerException2() {
1438	<	try{
1439	<	new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,null,new MyThreadFactory());
1440	<	fail("ThreadPoolExecutor constructor should throw a NullPointerException");
1436	>	/**
1437	>	* invokeAny(c) returns result of some task
1438	>	*/
1439	>	public void testInvokeAny5() throws Exception {
1440	>	final ExecutorService e =
1441	>	new ThreadPoolExecutor(2, 2,
1442	>	LONG_DELAY_MS, MILLISECONDS,
1443	>	new ArrayBlockingQueue<Runnable>(10));
1444	>	try (PoolCleaner cleaner = cleaner(e)) {
1445	>	List<Callable<String>> l = new ArrayList<>();
1446	>	l.add(new StringTask());
1447	>	l.add(new StringTask());
1448	>	String result = e.invokeAny(l);
1449	>	assertSame(TEST_STRING, result);
1450		}
342	–	catch (NullPointerException success){}
1451		}
1452
1453	<	/** Throws if threadFactory is set to null */
1454	<	public void testNullPointerException3() {
1455	<	try{
1456	<	ThreadFactory f = null;
1457	<	new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10),f);
1458	<	fail("ThreadPoolExecutor constructor should throw a NullPointerException");
1453	>	/**
1454	>	* invokeAll(null) throws NPE
1455	>	*/
1456	>	public void testInvokeAll1() throws Exception {
1457	>	final ExecutorService e =
1458	>	new ThreadPoolExecutor(2, 2,
1459	>	LONG_DELAY_MS, MILLISECONDS,
1460	>	new ArrayBlockingQueue<Runnable>(10));
1461	>	try (PoolCleaner cleaner = cleaner(e)) {
1462	>	try {
1463	>	e.invokeAll(null);
1464	>	shouldThrow();
1465	>	} catch (NullPointerException success) {}
1466		}
352	–	catch (NullPointerException success){}
1467		}
1468	<
1469	<
1470	<	/** Throws if corePoolSize argument is less than zero */
1471	<	public void testConstructor11() {
1472	<	try{
1473	<	new ThreadPoolExecutor(-1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyREHandler());
1474	<	fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");
1468	>
1469	>	/**
1470	>	* invokeAll(empty collection) returns empty list
1471	>	*/
1472	>	public void testInvokeAll2() throws InterruptedException {
1473	>	final ExecutorService e =
1474	>	new ThreadPoolExecutor(2, 2,
1475	>	LONG_DELAY_MS, MILLISECONDS,
1476	>	new ArrayBlockingQueue<Runnable>(10));
1477	>	final Collection<Callable<String>> emptyCollection
1478	>	= Collections.emptyList();
1479	>	try (PoolCleaner cleaner = cleaner(e)) {
1480	>	List<Future<String>> r = e.invokeAll(emptyCollection);
1481	>	assertTrue(r.isEmpty());
1482		}
362	–	catch (IllegalArgumentException success){}
1483		}
1484
1485	<	/** Throws if maximumPoolSize is less than zero */
1486	<	public void testConstructor12() {
1487	<	try{
1488	<	new ThreadPoolExecutor(1,-1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyREHandler());
1489	<	fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");
1485	>	/**
1486	>	* invokeAll(c) throws NPE if c has null elements
1487	>	*/
1488	>	public void testInvokeAll3() throws Exception {
1489	>	final ExecutorService e =
1490	>	new ThreadPoolExecutor(2, 2,
1491	>	LONG_DELAY_MS, MILLISECONDS,
1492	>	new ArrayBlockingQueue<Runnable>(10));
1493	>	try (PoolCleaner cleaner = cleaner(e)) {
1494	>	List<Callable<String>> l = new ArrayList<>();
1495	>	l.add(new StringTask());
1496	>	l.add(null);
1497	>	try {
1498	>	e.invokeAll(l);
1499	>	shouldThrow();
1500	>	} catch (NullPointerException success) {}
1501		}
371	–	catch (IllegalArgumentException success){}
1502		}
1503
1504	<	/** Throws if maximumPoolSize is equal to zero */
1505	<	public void testConstructor13() {
1506	<	try{
1507	<	new ThreadPoolExecutor(1,0,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyREHandler());
1508	<	fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");
1504	>	/**
1505	>	* get of element of invokeAll(c) throws exception on failed task
1506	>	*/
1507	>	public void testInvokeAll4() throws Exception {
1508	>	final ExecutorService e =
1509	>	new ThreadPoolExecutor(2, 2,
1510	>	LONG_DELAY_MS, MILLISECONDS,
1511	>	new ArrayBlockingQueue<Runnable>(10));
1512	>	try (PoolCleaner cleaner = cleaner(e)) {
1513	>	List<Callable<String>> l = new ArrayList<>();
1514	>	l.add(new NPETask());
1515	>	List<Future<String>> futures = e.invokeAll(l);
1516	>	assertEquals(1, futures.size());
1517	>	try {
1518	>	futures.get(0).get();
1519	>	shouldThrow();
1520	>	} catch (ExecutionException success) {
1521	>	assertTrue(success.getCause() instanceof NullPointerException);
1522	>	}
1523		}
380	–	catch (IllegalArgumentException success){}
1524		}
1525
1526	<	/** Throws if keepAliveTime is less than zero */
1527	<	public void testConstructor14() {
1528	<	try{
1529	<	new ThreadPoolExecutor(1,2,-1L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyREHandler());
1530	<	fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");
1526	>	/**
1527	>	* invokeAll(c) returns results of all completed tasks
1528	>	*/
1529	>	public void testInvokeAll5() throws Exception {
1530	>	final ExecutorService e =
1531	>	new ThreadPoolExecutor(2, 2,
1532	>	LONG_DELAY_MS, MILLISECONDS,
1533	>	new ArrayBlockingQueue<Runnable>(10));
1534	>	try (PoolCleaner cleaner = cleaner(e)) {
1535	>	List<Callable<String>> l = new ArrayList<>();
1536	>	l.add(new StringTask());
1537	>	l.add(new StringTask());
1538	>	List<Future<String>> futures = e.invokeAll(l);
1539	>	assertEquals(2, futures.size());
1540	>	for (Future<String> future : futures)
1541	>	assertSame(TEST_STRING, future.get());
1542		}
389	–	catch (IllegalArgumentException success){}
1543		}
1544
1545	<	/** Throws if corePoolSize is greater than the maximumPoolSize */
1546	<	public void testConstructor15() {
1547	<	try{
1548	<	new ThreadPoolExecutor(2,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyREHandler());
1549	<	fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");
1545	>	/**
1546	>	* timed invokeAny(null) throws NPE
1547	>	*/
1548	>	public void testTimedInvokeAny1() throws Exception {
1549	>	final ExecutorService e =
1550	>	new ThreadPoolExecutor(2, 2,
1551	>	LONG_DELAY_MS, MILLISECONDS,
1552	>	new ArrayBlockingQueue<Runnable>(10));
1553	>	try (PoolCleaner cleaner = cleaner(e)) {
1554	>	try {
1555	>	e.invokeAny(null, randomTimeout(), randomTimeUnit());
1556	>	shouldThrow();
1557	>	} catch (NullPointerException success) {}
1558	>	}
1559	>	}
1560	>
1561	>	/**
1562	>	* timed invokeAny(,,null) throws NPE
1563	>	*/
1564	>	public void testTimedInvokeAnyNullTimeUnit() throws Exception {
1565	>	final ExecutorService e =
1566	>	new ThreadPoolExecutor(2, 2,
1567	>	LONG_DELAY_MS, MILLISECONDS,
1568	>	new ArrayBlockingQueue<Runnable>(10));
1569	>	try (PoolCleaner cleaner = cleaner(e)) {
1570	>	List<Callable<String>> l = new ArrayList<>();
1571	>	l.add(new StringTask());
1572	>	try {
1573	>	e.invokeAny(l, randomTimeout(), null);
1574	>	shouldThrow();
1575	>	} catch (NullPointerException success) {}
1576		}
398	–	catch (IllegalArgumentException success){}
1577		}
1578
1579	<	/** Throws if workQueue is set to null */
1580	<	public void testNullPointerException4() {
1581	<	try{
1582	<	new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,null,new MyREHandler());
1583	<	fail("ThreadPoolExecutor constructor should throw a NullPointerException");
1579	>	/**
1580	>	* timed invokeAny(empty collection) throws IllegalArgumentException
1581	>	*/
1582	>	public void testTimedInvokeAny2() throws Exception {
1583	>	final ExecutorService e =
1584	>	new ThreadPoolExecutor(2, 2,
1585	>	LONG_DELAY_MS, MILLISECONDS,
1586	>	new ArrayBlockingQueue<Runnable>(10));
1587	>	try (PoolCleaner cleaner = cleaner(e)) {
1588	>	try {
1589	>	e.invokeAny(new ArrayList<Callable<String>>(),
1590	>	randomTimeout(), randomTimeUnit());
1591	>	shouldThrow();
1592	>	} catch (IllegalArgumentException success) {}
1593		}
407	–	catch (NullPointerException success){}
1594		}
1595
1596	<	/** Throws if handler is set to null */
1597	<	public void testNullPointerException5() {
1598	<	try{
1599	<	RejectedExecutionHandler r = null;
1600	<	new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10),r);
1601	<	fail("ThreadPoolExecutor constructor should throw a NullPointerException");
1596	>	/**
1597	>	* timed invokeAny(c) throws NullPointerException if c has null elements
1598	>	*/
1599	>	public void testTimedInvokeAny3() throws Exception {
1600	>	final CountDownLatch latch = new CountDownLatch(1);
1601	>	final ExecutorService e =
1602	>	new ThreadPoolExecutor(2, 2,
1603	>	LONG_DELAY_MS, MILLISECONDS,
1604	>	new ArrayBlockingQueue<Runnable>(10));
1605	>	try (PoolCleaner cleaner = cleaner(e)) {
1606	>	List<Callable<String>> l = new ArrayList<>();
1607	>	l.add(latchAwaitingStringTask(latch));
1608	>	l.add(null);
1609	>	try {
1610	>	e.invokeAny(l, randomTimeout(), randomTimeUnit());
1611	>	shouldThrow();
1612	>	} catch (NullPointerException success) {}
1613	>	latch.countDown();
1614		}
417	–	catch (NullPointerException success){}
1615		}
1616
1617	<
1618	<	/** Throws if corePoolSize argument is less than zero */
1619	<	public void testConstructor16() {
1620	<	try{
1621	<	new ThreadPoolExecutor(-1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory(),new MyREHandler());
1622	<	fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");
1617	>	/**
1618	>	* timed invokeAny(c) throws ExecutionException if no task completes
1619	>	*/
1620	>	public void testTimedInvokeAny4() throws Exception {
1621	>	final ExecutorService e =
1622	>	new ThreadPoolExecutor(2, 2,
1623	>	LONG_DELAY_MS, MILLISECONDS,
1624	>	new ArrayBlockingQueue<Runnable>(10));
1625	>	try (PoolCleaner cleaner = cleaner(e)) {
1626	>	long startTime = System.nanoTime();
1627	>	List<Callable<String>> l = new ArrayList<>();
1628	>	l.add(new NPETask());
1629	>	try {
1630	>	e.invokeAny(l, LONG_DELAY_MS, MILLISECONDS);
1631	>	shouldThrow();
1632	>	} catch (ExecutionException success) {
1633	>	assertTrue(success.getCause() instanceof NullPointerException);
1634	>	}
1635	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1636		}
427	–	catch (IllegalArgumentException success){}
1637		}
1638
1639	<	/** Throws if maximumPoolSize is less than zero */
1640	<	public void testConstructor17() {
1641	<	try{
1642	<	new ThreadPoolExecutor(1,-1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory(),new MyREHandler());
1643	<	fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");
1639	>	/**
1640	>	* timed invokeAny(c) returns result of some task
1641	>	*/
1642	>	public void testTimedInvokeAny5() throws Exception {
1643	>	final ExecutorService e =
1644	>	new ThreadPoolExecutor(2, 2,
1645	>	LONG_DELAY_MS, MILLISECONDS,
1646	>	new ArrayBlockingQueue<Runnable>(10));
1647	>	try (PoolCleaner cleaner = cleaner(e)) {
1648	>	long startTime = System.nanoTime();
1649	>	List<Callable<String>> l = new ArrayList<>();
1650	>	l.add(new StringTask());
1651	>	l.add(new StringTask());
1652	>	String result = e.invokeAny(l, LONG_DELAY_MS, MILLISECONDS);
1653	>	assertSame(TEST_STRING, result);
1654	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1655		}
436	–	catch (IllegalArgumentException success){}
1656		}
1657
1658	<	/** Throws if maximumPoolSize is equal to zero */
1659	<	public void testConstructor18() {
1660	<	try{
1661	<	new ThreadPoolExecutor(1,0,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory(),new MyREHandler());
1662	<	fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");
1658	>	/**
1659	>	* timed invokeAll(null) throws NPE
1660	>	*/
1661	>	public void testTimedInvokeAll1() throws Exception {
1662	>	final ExecutorService e =
1663	>	new ThreadPoolExecutor(2, 2,
1664	>	LONG_DELAY_MS, MILLISECONDS,
1665	>	new ArrayBlockingQueue<Runnable>(10));
1666	>	try (PoolCleaner cleaner = cleaner(e)) {
1667	>	try {
1668	>	e.invokeAll(null, randomTimeout(), randomTimeUnit());
1669	>	shouldThrow();
1670	>	} catch (NullPointerException success) {}
1671		}
445	–	catch (IllegalArgumentException success){}
1672		}
1673
1674	<	/** Throws if keepAliveTime is less than zero */
1675	<	public void testConstructor19() {
1676	<	try{
1677	<	new ThreadPoolExecutor(1,2,-1L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory(),new MyREHandler());
1678	<	fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");
1674	>	/**
1675	>	* timed invokeAll(,,null) throws NPE
1676	>	*/
1677	>	public void testTimedInvokeAllNullTimeUnit() throws Exception {
1678	>	final ExecutorService e =
1679	>	new ThreadPoolExecutor(2, 2,
1680	>	LONG_DELAY_MS, MILLISECONDS,
1681	>	new ArrayBlockingQueue<Runnable>(10));
1682	>	try (PoolCleaner cleaner = cleaner(e)) {
1683	>	List<Callable<String>> l = new ArrayList<>();
1684	>	l.add(new StringTask());
1685	>	try {
1686	>	e.invokeAll(l, randomTimeout(), null);
1687	>	shouldThrow();
1688	>	} catch (NullPointerException success) {}
1689		}
454	–	catch (IllegalArgumentException success){}
1690		}
1691
1692	<	/** Throws if corePoolSize is greater than the maximumPoolSize */
1693	<	public void testConstructor20() {
1694	<	try{
1695	<	new ThreadPoolExecutor(2,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory(),new MyREHandler());
1696	<	fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");
1697	<	}
1698	<	catch (IllegalArgumentException success){}
1699	<	}
1700	<
1701	<	/** Throws if workQueue is set to null */
1702	<	public void testNullPointerException6() {
1703	<	try{
1704	<	new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,null,new MyThreadFactory(),new MyREHandler());
1705	<	fail("ThreadPoolExecutor constructor should throw a NullPointerException");
1706	<	}
1707	<	catch (NullPointerException success){}
1708	<	}
1709	<
1710	<	/** Throws if handler is set to null */
1711	<	public void testNullPointerException7() {
1712	<	try{
1713	<	RejectedExecutionHandler r = null;
1714	<	new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory(),r);
1715	<	fail("ThreadPoolExecutor constructor should throw a NullPointerException");
1716	<	}
1717	<	catch (NullPointerException success){}
1718	<	}
1719	<
1720	<	/** Throws if ThreadFactory is set top null */
1721	<	public void testNullPointerException8() {
1722	<	try{
1723	<	ThreadFactory f = null;
1724	<	new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10),f,new MyREHandler());
1725	<	fail("ThreadPoolExecutor constructor should throw a NullPointerException");
1726	<	}
1727	<	catch (NullPointerException successdn8){}
1728	<	}
1729	<
1730	<
1731	<	/**
1732	<	*   execute will throw RejectedExcutionException
1733	<	*  ThreadPoolExecutor will throw one when more runnables are
1734	<	*  executed then will fit in the Queue.
1735	<	*/
1736	<	public void testRejectedExecutionException(){
1737	<	ThreadPoolExecutor tpe = null;
1738	<	try{
1739	<	tpe = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(1));
1740	<	} catch(Exception e){}
1741	<	tpe.shutdown();
1742	<	try{
1743	<	tpe.execute(new NoOpRunnable());
1744	<	fail("ThreadPoolExecutor - void execute(Runnable) should throw RejectedExecutionException");
1745	<	} catch(RejectedExecutionException success){}
1746	<
1747	<	joinPool(tpe);
1748	<	}
1749	<
1750	<	/**
1751	<	*   setCorePoolSize will throw IllegalArgumentException
1752	<	*  when given a negative
1753	<	*/
1754	<	public void testCorePoolSizeIllegalArgumentException(){
1755	<	ThreadPoolExecutor tpe = null;
1756	<	try{
1757	<	tpe = new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10));
1758	<	} catch(Exception e){}
1759	<	try{
1760	<	tpe.setCorePoolSize(-1);
1761	<	fail("ThreadPoolExecutor - void setCorePoolSize(int) should throw IllegalArgumentException");
1762	<	} catch(IllegalArgumentException success){
1763	<	} finally {
1764	<	tpe.shutdown();
1765	<	}
1766	<	joinPool(tpe);
1767	<	}
1768	<
1769	<
1770	<	/**
1771	<	*   setMaximumPoolSize(int) will throw IllegalArgumentException
1772	<	*  if given a value less the it's actual core pool size
1773	<	*/
1774	<	public void testMaximumPoolSizeIllegalArgumentException(){
1775	<	ThreadPoolExecutor tpe = null;
1776	<	try{
1777	<	tpe = new ThreadPoolExecutor(2,3,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10));
1778	<	} catch(Exception e){}
1779	<	try{
1780	<	tpe.setMaximumPoolSize(1);
1781	<	fail("ThreadPoolExecutor - void setMaximumPoolSize(int) should throw IllegalArgumentException");
1782	<	} catch(IllegalArgumentException success){
1783	<	} finally {
1784	<	tpe.shutdown();
1785	<	}
1786	<	joinPool(tpe);
1787	<	}
1788	<
1789	<	/**
1790	<	*   setMaximumPoolSize will throw IllegalArgumentException
1791	<	*  if given a negative number
1792	<	*/
1793	<	public void testMaximumPoolSizeIllegalArgumentException2(){
1794	<	ThreadPoolExecutor tpe = null;
1795	<	try{
1796	<	tpe = new ThreadPoolExecutor(2,3,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10));
1797	<	} catch(Exception e){}
1798	<	try{
1799	<	tpe.setMaximumPoolSize(-1);
1800	<	fail("ThreadPoolExecutor - void setMaximumPoolSize(int) should throw IllegalArgumentException");
1801	<	} catch(IllegalArgumentException success){
1802	<	} finally {
1803	<	tpe.shutdown();
1804	<	}
1805	<	joinPool(tpe);
1806	<	}
1807	<
1808	<
1809	<	/**
1810	<	*   setKeepAliveTime will throw IllegalArgumentException
1811	<	*  when given a negative value
1812	<	*/
1813	<	public void testKeepAliveTimeIllegalArgumentException(){
1814	<	ThreadPoolExecutor tpe = null;
1815	<	try{
1816	<	tpe = new ThreadPoolExecutor(2,3,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10));
1817	<	} catch(Exception e){}
1818	<
1819	<	try{
1820	<	tpe.setKeepAliveTime(-1,TimeUnit.MILLISECONDS);
1821	<	fail("ThreadPoolExecutor - void setKeepAliveTime(long, TimeUnit) should throw IllegalArgumentException");
1822	<	} catch(IllegalArgumentException success){
1823	<	} finally {
1824	<	tpe.shutdown();
1692	>	/**
1693	>	* timed invokeAll(empty collection) returns empty list
1694	>	*/
1695	>	public void testTimedInvokeAll2() throws InterruptedException {
1696	>	final ExecutorService e =
1697	>	new ThreadPoolExecutor(2, 2,
1698	>	LONG_DELAY_MS, MILLISECONDS,
1699	>	new ArrayBlockingQueue<Runnable>(10));
1700	>	final Collection<Callable<String>> emptyCollection
1701	>	= Collections.emptyList();
1702	>	try (PoolCleaner cleaner = cleaner(e)) {
1703	>	List<Future<String>> r =
1704	>	e.invokeAll(emptyCollection, randomTimeout(), randomTimeUnit());
1705	>	assertTrue(r.isEmpty());
1706	>	}
1707	>	}
1708	>
1709	>	/**
1710	>	* timed invokeAll(c) throws NPE if c has null elements
1711	>	*/
1712	>	public void testTimedInvokeAll3() throws Exception {
1713	>	final ExecutorService e =
1714	>	new ThreadPoolExecutor(2, 2,
1715	>	LONG_DELAY_MS, MILLISECONDS,
1716	>	new ArrayBlockingQueue<Runnable>(10));
1717	>	try (PoolCleaner cleaner = cleaner(e)) {
1718	>	List<Callable<String>> l = new ArrayList<>();
1719	>	l.add(new StringTask());
1720	>	l.add(null);
1721	>	try {
1722	>	e.invokeAll(l, randomTimeout(), randomTimeUnit());
1723	>	shouldThrow();
1724	>	} catch (NullPointerException success) {}
1725	>	}
1726	>	}
1727	>
1728	>	/**
1729	>	* get of element of invokeAll(c) throws exception on failed task
1730	>	*/
1731	>	public void testTimedInvokeAll4() throws Exception {
1732	>	final ExecutorService e =
1733	>	new ThreadPoolExecutor(2, 2,
1734	>	LONG_DELAY_MS, MILLISECONDS,
1735	>	new ArrayBlockingQueue<Runnable>(10));
1736	>	try (PoolCleaner cleaner = cleaner(e)) {
1737	>	List<Callable<String>> l = new ArrayList<>();
1738	>	l.add(new NPETask());
1739	>	List<Future<String>> futures =
1740	>	e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS);
1741	>	assertEquals(1, futures.size());
1742	>	try {
1743	>	futures.get(0).get();
1744	>	shouldThrow();
1745	>	} catch (ExecutionException success) {
1746	>	assertTrue(success.getCause() instanceof NullPointerException);
1747	>	}
1748	>	}
1749	>	}
1750	>
1751	>	/**
1752	>	* timed invokeAll(c) returns results of all completed tasks
1753	>	*/
1754	>	public void testTimedInvokeAll5() throws Exception {
1755	>	final ExecutorService e =
1756	>	new ThreadPoolExecutor(2, 2,
1757	>	LONG_DELAY_MS, MILLISECONDS,
1758	>	new ArrayBlockingQueue<Runnable>(10));
1759	>	try (PoolCleaner cleaner = cleaner(e)) {
1760	>	List<Callable<String>> l = new ArrayList<>();
1761	>	l.add(new StringTask());
1762	>	l.add(new StringTask());
1763	>	List<Future<String>> futures =
1764	>	e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS);
1765	>	assertEquals(2, futures.size());
1766	>	for (Future<String> future : futures)
1767	>	assertSame(TEST_STRING, future.get());
1768	>	}
1769	>	}
1770	>
1771	>	/**
1772	>	* timed invokeAll(c) cancels tasks not completed by timeout
1773	>	*/
1774	>	public void testTimedInvokeAll6() throws Exception {
1775	>	for (long timeout = timeoutMillis();;) {
1776	>	final CountDownLatch done = new CountDownLatch(1);
1777	>	final Callable<String> waiter = new CheckedCallable<>() {
1778	>	public String realCall() {
1779	>	try { done.await(LONG_DELAY_MS, MILLISECONDS); }
1780	>	catch (InterruptedException ok) {}
1781	>	return "1"; }};
1782	>	final ExecutorService p =
1783	>	new ThreadPoolExecutor(2, 2,
1784	>	LONG_DELAY_MS, MILLISECONDS,
1785	>	new ArrayBlockingQueue<Runnable>(10));
1786	>	try (PoolCleaner cleaner = cleaner(p, done)) {
1787	>	List<Callable<String>> tasks = new ArrayList<>();
1788	>	tasks.add(new StringTask("0"));
1789	>	tasks.add(waiter);
1790	>	tasks.add(new StringTask("2"));
1791	>	long startTime = System.nanoTime();
1792	>	List<Future<String>> futures =
1793	>	p.invokeAll(tasks, timeout, MILLISECONDS);
1794	>	assertEquals(tasks.size(), futures.size());
1795	>	assertTrue(millisElapsedSince(startTime) >= timeout);
1796	>	for (Future<?> future : futures)
1797	>	assertTrue(future.isDone());
1798	>	assertTrue(futures.get(1).isCancelled());
1799	>	try {
1800	>	assertEquals("0", futures.get(0).get());
1801	>	assertEquals("2", futures.get(2).get());
1802	>	break;
1803	>	} catch (CancellationException retryWithLongerTimeout) {
1804	>	timeout *= 2;
1805	>	if (timeout >= LONG_DELAY_MS / 2)
1806	>	fail("expected exactly one task to be cancelled");
1807	>	}
1808	>	}
1809	>	}
1810	>	}
1811	>
1812	>	/**
1813	>	* Execution continues if there is at least one thread even if
1814	>	* thread factory fails to create more
1815	>	*/
1816	>	public void testFailingThreadFactory() throws InterruptedException {
1817	>	final ExecutorService e =
1818	>	new ThreadPoolExecutor(100, 100,
1819	>	LONG_DELAY_MS, MILLISECONDS,
1820	>	new LinkedBlockingQueue<Runnable>(),
1821	>	new FailingThreadFactory());
1822	>	try (PoolCleaner cleaner = cleaner(e)) {
1823	>	final int TASKS = 100;
1824	>	final CountDownLatch done = new CountDownLatch(TASKS);
1825	>	for (int k = 0; k < TASKS; ++k)
1826	>	e.execute(new CheckedRunnable() {
1827	>	public void realRun() {
1828	>	done.countDown();
1829	>	}});
1830	>	await(done);
1831	>	}
1832	>	}
1833	>
1834	>	/**
1835	>	* allowsCoreThreadTimeOut is by default false.
1836	>	*/
1837	>	public void testAllowsCoreThreadTimeOut() {
1838	>	final ThreadPoolExecutor p =
1839	>	new ThreadPoolExecutor(2, 2,
1840	>	1000, MILLISECONDS,
1841	>	new ArrayBlockingQueue<Runnable>(10));
1842	>	try (PoolCleaner cleaner = cleaner(p)) {
1843	>	assertFalse(p.allowsCoreThreadTimeOut());
1844	>	}
1845	>	}
1846	>
1847	>	/**
1848	>	* allowCoreThreadTimeOut(true) causes idle threads to time out
1849	>	*/
1850	>	public void testAllowCoreThreadTimeOut_true() throws Exception {
1851	>	long keepAliveTime = timeoutMillis();
1852	>	final ThreadPoolExecutor p =
1853	>	new ThreadPoolExecutor(2, 10,
1854	>	keepAliveTime, MILLISECONDS,
1855	>	new ArrayBlockingQueue<Runnable>(10));
1856	>	try (PoolCleaner cleaner = cleaner(p)) {
1857	>	final CountDownLatch threadStarted = new CountDownLatch(1);
1858	>	p.allowCoreThreadTimeOut(true);
1859	>	p.execute(new CheckedRunnable() {
1860	>	public void realRun() {
1861	>	threadStarted.countDown();
1862	>	assertEquals(1, p.getPoolSize());
1863	>	}});
1864	>	await(threadStarted);
1865	>	delay(keepAliveTime);
1866	>	long startTime = System.nanoTime();
1867	>	while (p.getPoolSize() > 0
1868	>	&& millisElapsedSince(startTime) < LONG_DELAY_MS)
1869	>	Thread.yield();
1870	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1871	>	assertEquals(0, p.getPoolSize());
1872	>	}
1873	>	}
1874	>
1875	>	/**
1876	>	* allowCoreThreadTimeOut(false) causes idle threads not to time out
1877	>	*/
1878	>	public void testAllowCoreThreadTimeOut_false() throws Exception {
1879	>	long keepAliveTime = timeoutMillis();
1880	>	final ThreadPoolExecutor p =
1881	>	new ThreadPoolExecutor(2, 10,
1882	>	keepAliveTime, MILLISECONDS,
1883	>	new ArrayBlockingQueue<Runnable>(10));
1884	>	try (PoolCleaner cleaner = cleaner(p)) {
1885	>	final CountDownLatch threadStarted = new CountDownLatch(1);
1886	>	p.allowCoreThreadTimeOut(false);
1887	>	p.execute(new CheckedRunnable() {
1888	>	public void realRun() throws InterruptedException {
1889	>	threadStarted.countDown();
1890	>	assertTrue(p.getPoolSize() >= 1);
1891	>	}});
1892	>	delay(2 * keepAliveTime);
1893	>	assertTrue(p.getPoolSize() >= 1);
1894		}
591	–	joinPool(tpe);
1895		}
1896	<
1896	>
1897	>	/**
1898	>	* execute allows the same task to be submitted multiple times, even
1899	>	* if rejected
1900	>	*/
1901	>	public void testRejectedRecycledTask() throws InterruptedException {
1902	>	final int nTasks = 1000;
1903	>	final CountDownLatch done = new CountDownLatch(nTasks);
1904	>	final Runnable recycledTask = new Runnable() {
1905	>	public void run() {
1906	>	done.countDown();
1907	>	}};
1908	>	final ThreadPoolExecutor p =
1909	>	new ThreadPoolExecutor(1, 30,
1910	>	60, SECONDS,
1911	>	new ArrayBlockingQueue<Runnable>(30));
1912	>	try (PoolCleaner cleaner = cleaner(p)) {
1913	>	for (int i = 0; i < nTasks; ++i) {
1914	>	for (;;) {
1915	>	try {
1916	>	p.execute(recycledTask);
1917	>	break;
1918	>	}
1919	>	catch (RejectedExecutionException ignore) {}
1920	>	}
1921	>	}
1922	>	// enough time to run all tasks
1923	>	await(done, nTasks * SHORT_DELAY_MS);
1924	>	}
1925	>	}
1926	>
1927	>	/**
1928	>	* get(cancelled task) throws CancellationException
1929	>	*/
1930	>	public void testGet_cancelled() throws Exception {
1931	>	final CountDownLatch done = new CountDownLatch(1);
1932	>	final ExecutorService e =
1933	>	new ThreadPoolExecutor(1, 1,
1934	>	LONG_DELAY_MS, MILLISECONDS,
1935	>	new LinkedBlockingQueue<Runnable>());
1936	>	try (PoolCleaner cleaner = cleaner(e, done)) {
1937	>	final CountDownLatch blockerStarted = new CountDownLatch(1);
1938	>	final List<Future<?>> futures = new ArrayList<>();
1939	>	for (int i = 0; i < 2; i++) {
1940	>	Runnable r = new CheckedRunnable() { public void realRun()
1941	>	throws Throwable {
1942	>	blockerStarted.countDown();
1943	>	assertTrue(done.await(2 * LONG_DELAY_MS, MILLISECONDS));
1944	>	}};
1945	>	futures.add(e.submit(r));
1946	>	}
1947	>	await(blockerStarted);
1948	>	for (Future<?> future : futures) future.cancel(false);
1949	>	for (Future<?> future : futures) {
1950	>	try {
1951	>	future.get();
1952	>	shouldThrow();
1953	>	} catch (CancellationException success) {}
1954	>	try {
1955	>	future.get(LONG_DELAY_MS, MILLISECONDS);
1956	>	shouldThrow();
1957	>	} catch (CancellationException success) {}
1958	>	assertTrue(future.isCancelled());
1959	>	assertTrue(future.isDone());
1960	>	}
1961	>	}
1962	>	}
1963	>
1964	>	/** Directly test simple ThreadPoolExecutor RejectedExecutionHandlers. */
1965	>	public void testStandardRejectedExecutionHandlers() {
1966	>	final ThreadPoolExecutor p =
1967	>	new ThreadPoolExecutor(1, 1, 1, SECONDS,
1968	>	new ArrayBlockingQueue<Runnable>(1));
1969	>	final AtomicReference<Thread> thread = new AtomicReference<>();
1970	>	final Runnable r = new Runnable() { public void run() {
1971	>	thread.set(Thread.currentThread()); }};
1972	>
1973	>	try {
1974	>	new AbortPolicy().rejectedExecution(r, p);
1975	>	shouldThrow();
1976	>	} catch (RejectedExecutionException success) {}
1977	>	assertNull(thread.get());
1978	>
1979	>	new DiscardPolicy().rejectedExecution(r, p);
1980	>	assertNull(thread.get());
1981	>
1982	>	new CallerRunsPolicy().rejectedExecution(r, p);
1983	>	assertSame(Thread.currentThread(), thread.get());
1984	>
1985	>	// check that pool was not perturbed by handlers
1986	>	assertTrue(p.getRejectedExecutionHandler() instanceof AbortPolicy);
1987	>	assertEquals(0, p.getTaskCount());
1988	>	assertTrue(p.getQueue().isEmpty());
1989	>	}
1990	>
1991	>	public void testThreadFactoryReturnsTerminatedThread_shouldThrow() {
1992	>	if (!testImplementationDetails)
1993	>	return;
1994	>
1995	>	ThreadFactory returnsTerminatedThread = runnableIgnored -> {
1996	>	Thread thread = new Thread(() -> {});
1997	>	thread.start();
1998	>	try { thread.join(); }
1999	>	catch (InterruptedException ex) { throw new Error(ex); }
2000	>	return thread;
2001	>	};
2002	>	ThreadPoolExecutor p =
2003	>	new ThreadPoolExecutor(1, 1, 1, SECONDS,
2004	>	new ArrayBlockingQueue<Runnable>(1),
2005	>	returnsTerminatedThread);
2006	>	try (PoolCleaner cleaner = cleaner(p)) {
2007	>	assertThrows(IllegalThreadStateException.class,
2008	>	() -> p.execute(() -> {}));
2009	>	}
2010	>	}
2011	>
2012	>	public void testThreadFactoryReturnsStartedThread_shouldThrow() {
2013	>	if (!testImplementationDetails)
2014	>	return;
2015	>
2016	>	CountDownLatch latch = new CountDownLatch(1);
2017	>	Runnable awaitLatch = () -> {
2018	>	try { latch.await(); }
2019	>	catch (InterruptedException ex) { throw new Error(ex); }};
2020	>	ThreadFactory returnsStartedThread = runnable -> {
2021	>	Thread thread = new Thread(awaitLatch);
2022	>	thread.start();
2023	>	return thread;
2024	>	};
2025	>	ThreadPoolExecutor p =
2026	>	new ThreadPoolExecutor(1, 1, 1, SECONDS,
2027	>	new ArrayBlockingQueue<Runnable>(1),
2028	>	returnsStartedThread);
2029	>	try (PoolCleaner cleaner = cleaner(p)) {
2030	>	assertThrows(IllegalThreadStateException.class,
2031	>	() -> p.execute(() -> {}));
2032	>	latch.countDown();
2033	>	}
2034	>	}
2035	>
2036		}

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