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

Comparing jsr166/src/test/tck/ThreadPoolExecutorTest.java (file contents):
Revision 1.6 by dl, Thu Sep 25 11:02:41 2003 UTC vs.
Revision 1.123 by jsr166, Sat Jul 15 23:15:21 2017 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	<
51	<	/**
52	<	* For use as ThreadFactory in constructors
53	<	*/
54	<	static class MyThreadFactory implements ThreadFactory{
55	<	public Thread newThread(Runnable r){
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	<	}
85	>	}
86		}
87
88		/**
89	<	* For use as RejectedExecutionHandler in constructors
89	>	* execute successfully executes a runnable
90		*/
91	<	static class MyREHandler implements RejectedExecutionHandler{
92	<	public void rejectedExecution(Runnable r, ThreadPoolExecutor executor){}
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	>	* getActiveCount increases but doesn't overestimate, when a
107	>	* thread becomes active
108	>	*/
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	>
129	>	/**
130	>	* prestartCoreThread starts a thread if under corePoolSize, else doesn't
131	>	*/
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	<
210	>
211		/**
212	<	*   execute successfully executes a runnable
212	>	* getCorePoolSize returns size given in constructor if not otherwise set
213		*/
214	<	public void testExecute() {
215	<	ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
216	<	try {
217	<	p1.execute(new Runnable() {
218	<	public void run() {
219	<	try {
220	<	Thread.sleep(SHORT_DELAY_MS);
221	<	} catch(InterruptedException e){
47	<	threadUnexpectedException();
48	<	}
49	<	}
50	<	});
51	<	Thread.sleep(SMALL_DELAY_MS);
52	<	} catch(InterruptedException e){
53	<	unexpectedException();
54	<	}
55	<	joinPool(p1);
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	<	*  getActiveCount increases but doesn't overestimate, when a
60	<	*  thread becomes active
225	>	* getKeepAliveTime returns value given in constructor if not otherwise set
226		*/
227	<	public void testGetActiveCount() {
228	<	ThreadPoolExecutor p2 = new ThreadPoolExecutor(2, 2, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
229	<	assertEquals(0, p2.getActiveCount());
230	<	p2.execute(new MediumRunnable());
231	<	try {
232	<	Thread.sleep(SHORT_DELAY_MS);
233	<	} catch(Exception e){
69	<	unexpectedException();
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		}
71	–	assertEquals(1, p2.getActiveCount());
72	–	joinPool(p2);
235		}
236	<
236	>
237		/**
238	<	*   getCompletedTaskCount increases, but doesn't overestimate,
77	<	*   when tasks complete
238	>	* getThreadFactory returns factory in constructor if not set
239		*/
240	<	public void testGetCompletedTaskCount() {
241	<	ThreadPoolExecutor p2 = new ThreadPoolExecutor(2, 2, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
242	<	assertEquals(0, p2.getCompletedTaskCount());
243	<	p2.execute(new ShortRunnable());
244	<	try {
245	<	Thread.sleep(MEDIUM_DELAY_MS);
246	<	} catch(Exception e){
247	<	unexpectedException();
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		}
88	–	assertEquals(1, p2.getCompletedTaskCount());
89	–	p2.shutdown();
90	–	joinPool(p2);
251		}
252	<
252	>
253		/**
254	<	*   getCorePoolSize returns size given in constructor if not otherwise set
254	>	* setThreadFactory sets the thread factory returned by getThreadFactory
255		*/
256	<	public void testGetCorePoolSize() {
257	<	ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
258	<	assertEquals(1, p1.getCorePoolSize());
259	<	joinPool(p1);
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	<
267	>
268		/**
269	<	*   getKeepAliveTime returns value given in constructor if not otherwise set
269	>	* setThreadFactory(null) throws NPE
270		*/
271	<	public void testGetKeepAliveTime() {
272	<	ThreadPoolExecutor p2 = new ThreadPoolExecutor(2, 2, 1000, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
273	<	assertEquals(1, p2.getKeepAliveTime(TimeUnit.SECONDS));
274	<	joinPool(p2);
275	<	}
276	<
277	<	/**
278	<	*   getLargestPoolSize increases, but doesn't overestimate, when
279	<	*   multiple threads active
280	<	*/
281	<	public void testGetLargestPoolSize() {
116	<	ThreadPoolExecutor p2 = new ThreadPoolExecutor(2, 2, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
117	<	try {
118	<	assertEquals(0, p2.getLargestPoolSize());
119	<	p2.execute(new MediumRunnable());
120	<	p2.execute(new MediumRunnable());
121	<	Thread.sleep(SHORT_DELAY_MS);
122	<	assertEquals(2, p2.getLargestPoolSize());
123	<	} catch(Exception e){
124	<	unexpectedException();
125	<	}
126	<	joinPool(p2);
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	<
283	>
284		/**
285	<	*   getMaximumPoolSize returns value given in constructor if not
131	<	*   otherwise set
285	>	* The default rejected execution handler is AbortPolicy.
286		*/
287	<	public void testGetMaximumPoolSize() {
288	<	ThreadPoolExecutor p2 = new ThreadPoolExecutor(2, 2, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
289	<	assertEquals(2, p2.getMaximumPoolSize());
290	<	joinPool(p2);
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	<
296	>
297		/**
298	<	*   getPoolSize increases, but doesn't overestimate, when threads
141	<	*   become active
298	>	* getRejectedExecutionHandler returns handler in constructor if not set
299		*/
300	<	public void testGetPoolSize() {
301	<	ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
302	<	assertEquals(0, p1.getPoolSize());
303	<	p1.execute(new MediumRunnable());
304	<	assertEquals(1, p1.getPoolSize());
305	<	joinPool(p1);
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	<
311	>
312		/**
313	<	*   getTaskCount increases, but doesn't overestimate, when tasks submitted
313	>	* setRejectedExecutionHandler sets the handler returned by
314	>	* getRejectedExecutionHandler
315		*/
316	<	public void testGetTaskCount() {
317	<	ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
318	<	try {
319	<	assertEquals(0, p1.getTaskCount());
320	<	p1.execute(new MediumRunnable());
321	<	Thread.sleep(SHORT_DELAY_MS);
322	<	assertEquals(1, p1.getTaskCount());
323	<	} catch(Exception e){
324	<	unexpectedException();
325	<	}
164	<	joinPool(p1);
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	<
327	>
328		/**
329	<	*   isShutDown is false before shutdown, true after
329	>	* setRejectedExecutionHandler(null) throws NPE
330		*/
331	<	public void testIsShutdown() {
332	<
333	<	ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
334	<	assertFalse(p1.isShutdown());
335	<	p1.shutdown();
336	<	assertTrue(p1.isShutdown());
337	<	joinPool(p1);
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
179	–
344		/**
345	<	*  isTerminated is false before termination, true after
345	>	* getLargestPoolSize increases, but doesn't overestimate, when
346	>	* multiple threads active
347		*/
348	<	public void testIsTerminated() {
349	<	ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
350	<	assertFalse(p1.isTerminated());
351	<	try {
352	<	p1.execute(new MediumRunnable());
353	<	} finally {
354	<	p1.shutdown();
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	<	try {
192	<	assertTrue(p1.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
193	<	assertTrue(p1.isTerminated());
194	<	} catch(Exception e){
195	<	unexpectedException();
196	<	}
368	>	assertEquals(THREADS, p.getLargestPoolSize());
369		}
370
371		/**
372	<	*  isTerminating is not true when running or when terminated
372	>	* getMaximumPoolSize returns value given in constructor if not
373	>	* otherwise set
374		*/
375	<	public void testIsTerminating() {
376	<	ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
377	<	assertFalse(p1.isTerminating());
378	<	try {
379	<	p1.execute(new SmallRunnable());
380	<	assertFalse(p1.isTerminating());
381	<	} finally {
382	<	p1.shutdown();
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	<	try {
448	<	assertTrue(p1.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
213	<	assertTrue(p1.isTerminated());
214	<	assertFalse(p1.isTerminating());
215	<	} catch(Exception e){
216	<	unexpectedException();
217	<	}
447	>	assertEquals(1 + TASKS, p.getTaskCount());
448	>	assertEquals(1 + TASKS, p.getCompletedTaskCount());
449		}
450
451		/**
452	<	*   purge removes cancelled tasks from the queue
452	>	* isShutdown is false before shutdown, true after
453		*/
454	<	public void testPurge() {
455	<	ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
456	<	CancellableTask[] tasks = new CancellableTask[5];
457	<	for(int i = 0; i < 5; i++){
458	<	tasks[i] = new CancellableTask(new MediumPossiblyInterruptedRunnable());
459	<	p1.execute(tasks[i]);
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	>	* getQueue returns the work queue, which contains queued tasks
556	>	*/
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[] tasks = new FutureTask[5];
567	>	for (int i = 0; i < tasks.length; i++) {
568	>	Callable task = new CheckedCallable<Boolean>() {
569	>	public Boolean realCall() throws InterruptedException {
570	>	threadStarted.countDown();
571	>	assertSame(q, p.getQueue());
572	>	await(done);
573	>	return Boolean.TRUE;
574	>	}};
575	>	tasks[i] = new FutureTask(task);
576	>	p.execute(tasks[i]);
577	>	}
578	>	await(threadStarted);
579	>	assertSame(q, p.getQueue());
580	>	assertFalse(q.contains(tasks[0]));
581	>	assertTrue(q.contains(tasks[tasks.length - 1]));
582	>	assertEquals(tasks.length - 1, q.size());
583		}
230	–	tasks[4].cancel(true);
231	–	tasks[3].cancel(true);
232	–	p1.purge();
233	–	long count = p1.getTaskCount();
234	–	assertTrue(count >= 2 && count < 5);
235	–	joinPool(p1);
584		}
585
586		/**
587	<	*  shutDownNow returns a list containing tasks that were not run
588	<	*/
589	<	public void testShutDownNow() {
590	<	ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
591	<	List l;
592	<	try {
593	<	for(int i = 0; i < 5; i++)
594	<	p1.execute(new MediumPossiblyInterruptedRunnable());
587	>	* remove(task) removes queued task, and fails to remove active task
588	>	*/
589	>	public void testRemove() throws InterruptedException {
590	>	final CountDownLatch done = new CountDownLatch(1);
591	>	BlockingQueue<Runnable> q = new ArrayBlockingQueue<>(10);
592	>	final ThreadPoolExecutor p =
593	>	new ThreadPoolExecutor(1, 1,
594	>	LONG_DELAY_MS, MILLISECONDS,
595	>	q);
596	>	try (PoolCleaner cleaner = cleaner(p, done)) {
597	>	Runnable[] tasks = new Runnable[6];
598	>	final CountDownLatch threadStarted = new CountDownLatch(1);
599	>	for (int i = 0; i < tasks.length; i++) {
600	>	tasks[i] = new CheckedRunnable() {
601	>	public void realRun() throws InterruptedException {
602	>	threadStarted.countDown();
603	>	await(done);
604	>	}};
605	>	p.execute(tasks[i]);
606	>	}
607	>	await(threadStarted);
608	>	assertFalse(p.remove(tasks[0]));
609	>	assertTrue(q.contains(tasks[4]));
610	>	assertTrue(q.contains(tasks[3]));
611	>	assertTrue(p.remove(tasks[4]));
612	>	assertFalse(p.remove(tasks[4]));
613	>	assertFalse(q.contains(tasks[4]));
614	>	assertTrue(q.contains(tasks[3]));
615	>	assertTrue(p.remove(tasks[3]));
616	>	assertFalse(q.contains(tasks[3]));
617		}
618	<	finally {
619	<	l = p1.shutdownNow();
618	>	}
619	>
620	>	/**
621	>	* purge removes cancelled tasks from the queue
622	>	*/
623	>	public void testPurge() throws InterruptedException {
624	>	final CountDownLatch threadStarted = new CountDownLatch(1);
625	>	final CountDownLatch done = new CountDownLatch(1);
626	>	final BlockingQueue<Runnable> q = new ArrayBlockingQueue<>(10);
627	>	final ThreadPoolExecutor p =
628	>	new ThreadPoolExecutor(1, 1,
629	>	LONG_DELAY_MS, MILLISECONDS,
630	>	q);
631	>	try (PoolCleaner cleaner = cleaner(p, done)) {
632	>	FutureTask[] tasks = new FutureTask[5];
633	>	for (int i = 0; i < tasks.length; i++) {
634	>	Callable task = new CheckedCallable<Boolean>() {
635	>	public Boolean realCall() throws InterruptedException {
636	>	threadStarted.countDown();
637	>	await(done);
638	>	return Boolean.TRUE;
639	>	}};
640	>	tasks[i] = new FutureTask(task);
641	>	p.execute(tasks[i]);
642	>	}
643	>	await(threadStarted);
644	>	assertEquals(tasks.length, p.getTaskCount());
645	>	assertEquals(tasks.length - 1, q.size());
646	>	assertEquals(1L, p.getActiveCount());
647	>	assertEquals(0L, p.getCompletedTaskCount());
648	>	tasks[4].cancel(true);
649	>	tasks[3].cancel(false);
650	>	p.purge();
651	>	assertEquals(tasks.length - 3, q.size());
652	>	assertEquals(tasks.length - 2, p.getTaskCount());
653	>	p.purge();         // Nothing to do
654	>	assertEquals(tasks.length - 3, q.size());
655	>	assertEquals(tasks.length - 2, p.getTaskCount());
656		}
657	<	assertTrue(p1.isShutdown());
658	<	assertTrue(l.size() <= 4);
657	>	}
658	>
659	>	/**
660	>	* shutdownNow returns a list containing tasks that were not run,
661	>	* and those tasks are drained from the queue
662	>	*/
663	>	public void testShutdownNow() throws InterruptedException {
664	>	final int poolSize = 2;
665	>	final int count = 5;
666	>	final AtomicInteger ran = new AtomicInteger(0);
667	>	final ThreadPoolExecutor p =
668	>	new ThreadPoolExecutor(poolSize, poolSize,
669	>	LONG_DELAY_MS, MILLISECONDS,
670	>	new ArrayBlockingQueue<Runnable>(10));
671	>	final CountDownLatch threadsStarted = new CountDownLatch(poolSize);
672	>	Runnable waiter = new CheckedRunnable() { public void realRun() {
673	>	threadsStarted.countDown();
674	>	try {
675	>	MILLISECONDS.sleep(2 * LONG_DELAY_MS);
676	>	} catch (InterruptedException success) {}
677	>	ran.getAndIncrement();
678	>	}};
679	>	for (int i = 0; i < count; i++)
680	>	p.execute(waiter);
681	>	await(threadsStarted);
682	>	assertEquals(poolSize, p.getActiveCount());
683	>	assertEquals(0, p.getCompletedTaskCount());
684	>	final List<Runnable> queuedTasks;
685	>	try {
686	>	queuedTasks = p.shutdownNow();
687	>	} catch (SecurityException ok) {
688	>	return; // Allowed in case test doesn't have privs
689	>	}
690	>	assertTrue(p.isShutdown());
691	>	assertTrue(p.getQueue().isEmpty());
692	>	assertEquals(count - poolSize, queuedTasks.size());
693	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
694	>	assertTrue(p.isTerminated());
695	>	assertEquals(poolSize, ran.get());
696	>	assertEquals(poolSize, p.getCompletedTaskCount());
697		}
698
699		// Exception Tests
256	–
700
701	<	/**
702	<	* Constructor throws if corePoolSize argument is less than zero
701	>	/**
702	>	* Constructor throws if corePoolSize argument is less than zero
703		*/
704		public void testConstructor1() {
705		try {
706	<	new ThreadPoolExecutor(-1,1,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
706	>	new ThreadPoolExecutor(-1, 1, 1L, SECONDS,
707	>	new ArrayBlockingQueue<Runnable>(10));
708		shouldThrow();
709	<	}
266	<	catch (IllegalArgumentException success){}
709	>	} catch (IllegalArgumentException success) {}
710		}
711	<
712	<	/**
713	<	* Constructor throws if maximumPoolSize is less than zero
711	>
712	>	/**
713	>	* Constructor throws if maximumPoolSize is less than zero
714		*/
715		public void testConstructor2() {
716		try {
717	<	new ThreadPoolExecutor(1,-1,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
717	>	new ThreadPoolExecutor(1, -1, 1L, SECONDS,
718	>	new ArrayBlockingQueue<Runnable>(10));
719		shouldThrow();
720	<	}
277	<	catch (IllegalArgumentException success){}
720	>	} catch (IllegalArgumentException success) {}
721		}
722	<
723	<	/**
724	<	* Constructor throws if maximumPoolSize is equal to zero
722	>
723	>	/**
724	>	* Constructor throws if maximumPoolSize is equal to zero
725		*/
726		public void testConstructor3() {
727		try {
728	<	new ThreadPoolExecutor(1,0,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
728	>	new ThreadPoolExecutor(1, 0, 1L, SECONDS,
729	>	new ArrayBlockingQueue<Runnable>(10));
730		shouldThrow();
731	<	}
288	<	catch (IllegalArgumentException success){}
731	>	} catch (IllegalArgumentException success) {}
732		}
733
734	<	/**
735	<	* Constructor throws if keepAliveTime is less than zero
734	>	/**
735	>	* Constructor throws if keepAliveTime is less than zero
736		*/
737		public void testConstructor4() {
738		try {
739	<	new ThreadPoolExecutor(1,2,-1L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
739	>	new ThreadPoolExecutor(1, 2, -1L, SECONDS,
740	>	new ArrayBlockingQueue<Runnable>(10));
741		shouldThrow();
742	<	}
299	<	catch (IllegalArgumentException success){}
742	>	} catch (IllegalArgumentException success) {}
743		}
744
745	<	/**
746	<	* Constructor throws if corePoolSize is greater than the maximumPoolSize
745	>	/**
746	>	* Constructor throws if corePoolSize is greater than the maximumPoolSize
747		*/
748		public void testConstructor5() {
749		try {
750	<	new ThreadPoolExecutor(2,1,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
750	>	new ThreadPoolExecutor(2, 1, 1L, SECONDS,
751	>	new ArrayBlockingQueue<Runnable>(10));
752		shouldThrow();
753	<	}
310	<	catch (IllegalArgumentException success){}
753	>	} catch (IllegalArgumentException success) {}
754		}
755	<
756	<	/**
757	<	* Constructor throws if workQueue is set to null
755	>
756	>	/**
757	>	* Constructor throws if workQueue is set to null
758		*/
759	<	public void testNullPointerException() {
759	>	public void testConstructorNullPointerException() {
760		try {
761	<	new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,null);
761	>	new ThreadPoolExecutor(1, 2, 1L, SECONDS,
762	>	(BlockingQueue) null);
763		shouldThrow();
764	<	}
321	<	catch (NullPointerException success){}
764	>	} catch (NullPointerException success) {}
765		}
323	–
766
767	<
768	<	/**
327	<	* Constructor throws if corePoolSize argument is less than zero
767	>	/**
768	>	* Constructor throws if corePoolSize argument is less than zero
769		*/
770		public void testConstructor6() {
771		try {
772	<	new ThreadPoolExecutor(-1,1,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory());
772	>	new ThreadPoolExecutor(-1, 1, 1L, SECONDS,
773	>	new ArrayBlockingQueue<Runnable>(10),
774	>	new SimpleThreadFactory());
775		shouldThrow();
776	<	} catch (IllegalArgumentException success){}
776	>	} catch (IllegalArgumentException success) {}
777		}
778	<
779	<	/**
780	<	* Constructor throws if maximumPoolSize is less than zero
778	>
779	>	/**
780	>	* Constructor throws if maximumPoolSize is less than zero
781		*/
782		public void testConstructor7() {
783		try {
784	<	new ThreadPoolExecutor(1,-1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory());
784	>	new ThreadPoolExecutor(1, -1, 1L, SECONDS,
785	>	new ArrayBlockingQueue<Runnable>(10),
786	>	new SimpleThreadFactory());
787		shouldThrow();
788	<	}
344	<	catch (IllegalArgumentException success){}
788	>	} catch (IllegalArgumentException success) {}
789		}
790
791	<	/**
792	<	* Constructor throws if maximumPoolSize is equal to zero
791	>	/**
792	>	* Constructor throws if maximumPoolSize is equal to zero
793		*/
794		public void testConstructor8() {
795		try {
796	<	new ThreadPoolExecutor(1,0,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory());
796	>	new ThreadPoolExecutor(1, 0, 1L, SECONDS,
797	>	new ArrayBlockingQueue<Runnable>(10),
798	>	new SimpleThreadFactory());
799		shouldThrow();
800	<	}
355	<	catch (IllegalArgumentException success){}
800	>	} catch (IllegalArgumentException success) {}
801		}
802
803	<	/**
804	<	* Constructor throws if keepAliveTime is less than zero
803	>	/**
804	>	* Constructor throws if keepAliveTime is less than zero
805		*/
806		public void testConstructor9() {
807		try {
808	<	new ThreadPoolExecutor(1,2,-1L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory());
808	>	new ThreadPoolExecutor(1, 2, -1L, SECONDS,
809	>	new ArrayBlockingQueue<Runnable>(10),
810	>	new SimpleThreadFactory());
811		shouldThrow();
812	<	}
366	<	catch (IllegalArgumentException success){}
812	>	} catch (IllegalArgumentException success) {}
813		}
814
815	<	/**
816	<	* Constructor throws if corePoolSize is greater than the maximumPoolSize
815	>	/**
816	>	* Constructor throws if corePoolSize is greater than the maximumPoolSize
817		*/
818		public void testConstructor10() {
819		try {
820	<	new ThreadPoolExecutor(2,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory());
820	>	new ThreadPoolExecutor(2, 1, 1L, SECONDS,
821	>	new ArrayBlockingQueue<Runnable>(10),
822	>	new SimpleThreadFactory());
823		shouldThrow();
824	<	}
377	<	catch (IllegalArgumentException success){}
824	>	} catch (IllegalArgumentException success) {}
825		}
826
827	<	/**
828	<	* Constructor throws if workQueue is set to null
827	>	/**
828	>	* Constructor throws if workQueue is set to null
829		*/
830	<	public void testNullPointerException2() {
830	>	public void testConstructorNullPointerException2() {
831		try {
832	<	new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,null,new MyThreadFactory());
832	>	new ThreadPoolExecutor(1, 2, 1L, SECONDS,
833	>	(BlockingQueue) null,
834	>	new SimpleThreadFactory());
835		shouldThrow();
836	<	}
388	<	catch (NullPointerException success){}
836	>	} catch (NullPointerException success) {}
837		}
838
839	<	/**
840	<	* Constructor throws if threadFactory is set to null
839	>	/**
840	>	* Constructor throws if threadFactory is set to null
841		*/
842	<	public void testNullPointerException3() {
842	>	public void testConstructorNullPointerException3() {
843		try {
844	<	ThreadFactory f = null;
845	<	new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10),f);
844	>	new ThreadPoolExecutor(1, 2, 1L, SECONDS,
845	>	new ArrayBlockingQueue<Runnable>(10),
846	>	(ThreadFactory) null);
847		shouldThrow();
848	<	}
400	<	catch (NullPointerException success){}
848	>	} catch (NullPointerException success) {}
849		}
850	<
851	<
852	<	/**
405	<	* Constructor throws if corePoolSize argument is less than zero
850	>
851	>	/**
852	>	* Constructor throws if corePoolSize argument is less than zero
853		*/
854		public void testConstructor11() {
855		try {
856	<	new ThreadPoolExecutor(-1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyREHandler());
856	>	new ThreadPoolExecutor(-1, 1, 1L, SECONDS,
857	>	new ArrayBlockingQueue<Runnable>(10),
858	>	new NoOpREHandler());
859		shouldThrow();
860	<	}
412	<	catch (IllegalArgumentException success){}
860	>	} catch (IllegalArgumentException success) {}
861		}
862
863	<	/**
864	<	* Constructor throws if maximumPoolSize is less than zero
863	>	/**
864	>	* Constructor throws if maximumPoolSize is less than zero
865		*/
866		public void testConstructor12() {
867		try {
868	<	new ThreadPoolExecutor(1,-1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyREHandler());
868	>	new ThreadPoolExecutor(1, -1, 1L, SECONDS,
869	>	new ArrayBlockingQueue<Runnable>(10),
870	>	new NoOpREHandler());
871		shouldThrow();
872	<	}
423	<	catch (IllegalArgumentException success){}
872	>	} catch (IllegalArgumentException success) {}
873		}
874
875	<	/**
876	<	* Constructor throws if maximumPoolSize is equal to zero
875	>	/**
876	>	* Constructor throws if maximumPoolSize is equal to zero
877		*/
878		public void testConstructor13() {
879		try {
880	<	new ThreadPoolExecutor(1,0,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyREHandler());
880	>	new ThreadPoolExecutor(1, 0, 1L, SECONDS,
881	>	new ArrayBlockingQueue<Runnable>(10),
882	>	new NoOpREHandler());
883		shouldThrow();
884	<	}
434	<	catch (IllegalArgumentException success){}
884	>	} catch (IllegalArgumentException success) {}
885		}
886
887	<	/**
888	<	* Constructor throws if keepAliveTime is less than zero
887	>	/**
888	>	* Constructor throws if keepAliveTime is less than zero
889		*/
890		public void testConstructor14() {
891		try {
892	<	new ThreadPoolExecutor(1,2,-1L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyREHandler());
892	>	new ThreadPoolExecutor(1, 2, -1L, SECONDS,
893	>	new ArrayBlockingQueue<Runnable>(10),
894	>	new NoOpREHandler());
895		shouldThrow();
896	<	}
445	<	catch (IllegalArgumentException success){}
896	>	} catch (IllegalArgumentException success) {}
897		}
898
899	<	/**
900	<	* Constructor throws if corePoolSize is greater than the maximumPoolSize
899	>	/**
900	>	* Constructor throws if corePoolSize is greater than the maximumPoolSize
901		*/
902		public void testConstructor15() {
903		try {
904	<	new ThreadPoolExecutor(2,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyREHandler());
904	>	new ThreadPoolExecutor(2, 1, 1L, SECONDS,
905	>	new ArrayBlockingQueue<Runnable>(10),
906	>	new NoOpREHandler());
907		shouldThrow();
908	<	}
456	<	catch (IllegalArgumentException success){}
908	>	} catch (IllegalArgumentException success) {}
909		}
910
911	<	/**
912	<	* Constructor throws if workQueue is set to null
911	>	/**
912	>	* Constructor throws if workQueue is set to null
913		*/
914	<	public void testNullPointerException4() {
914	>	public void testConstructorNullPointerException4() {
915		try {
916	<	new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,null,new MyREHandler());
916	>	new ThreadPoolExecutor(1, 2, 1L, SECONDS,
917	>	(BlockingQueue) null,
918	>	new NoOpREHandler());
919		shouldThrow();
920	<	}
467	<	catch (NullPointerException success){}
920	>	} catch (NullPointerException success) {}
921		}
922
923	<	/**
924	<	* Constructor throws if handler is set to null
923	>	/**
924	>	* Constructor throws if handler is set to null
925		*/
926	<	public void testNullPointerException5() {
926	>	public void testConstructorNullPointerException5() {
927		try {
928	<	RejectedExecutionHandler r = null;
929	<	new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10),r);
928	>	new ThreadPoolExecutor(1, 2, 1L, SECONDS,
929	>	new ArrayBlockingQueue<Runnable>(10),
930	>	(RejectedExecutionHandler) null);
931		shouldThrow();
932	<	}
479	<	catch (NullPointerException success){}
932	>	} catch (NullPointerException success) {}
933		}
934
935	<
936	<	/**
484	<	* Constructor throws if corePoolSize argument is less than zero
935	>	/**
936	>	* Constructor throws if corePoolSize argument is less than zero
937		*/
938		public void testConstructor16() {
939		try {
940	<	new ThreadPoolExecutor(-1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory(),new MyREHandler());
940	>	new ThreadPoolExecutor(-1, 1, 1L, SECONDS,
941	>	new ArrayBlockingQueue<Runnable>(10),
942	>	new SimpleThreadFactory(),
943	>	new NoOpREHandler());
944		shouldThrow();
945	<	}
491	<	catch (IllegalArgumentException success){}
945	>	} catch (IllegalArgumentException success) {}
946		}
947
948	<	/**
949	<	* Constructor throws if maximumPoolSize is less than zero
948	>	/**
949	>	* Constructor throws if maximumPoolSize is less than zero
950		*/
951		public void testConstructor17() {
952		try {
953	<	new ThreadPoolExecutor(1,-1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory(),new MyREHandler());
953	>	new ThreadPoolExecutor(1, -1, 1L, SECONDS,
954	>	new ArrayBlockingQueue<Runnable>(10),
955	>	new SimpleThreadFactory(),
956	>	new NoOpREHandler());
957		shouldThrow();
958	<	}
502	<	catch (IllegalArgumentException success){}
958	>	} catch (IllegalArgumentException success) {}
959		}
960
961	<	/**
962	<	* Constructor throws if maximumPoolSize is equal to zero
961	>	/**
962	>	* Constructor throws if maximumPoolSize is equal to zero
963		*/
964		public void testConstructor18() {
965		try {
966	<	new ThreadPoolExecutor(1,0,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory(),new MyREHandler());
966	>	new ThreadPoolExecutor(1, 0, 1L, SECONDS,
967	>	new ArrayBlockingQueue<Runnable>(10),
968	>	new SimpleThreadFactory(),
969	>	new NoOpREHandler());
970		shouldThrow();
971	<	}
513	<	catch (IllegalArgumentException success){}
971	>	} catch (IllegalArgumentException success) {}
972		}
973
974	<	/**
975	<	* Constructor throws if keepAliveTime is less than zero
974	>	/**
975	>	* Constructor throws if keepAliveTime is less than zero
976		*/
977		public void testConstructor19() {
978		try {
979	<	new ThreadPoolExecutor(1,2,-1L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory(),new MyREHandler());
979	>	new ThreadPoolExecutor(1, 2, -1L, SECONDS,
980	>	new ArrayBlockingQueue<Runnable>(10),
981	>	new SimpleThreadFactory(),
982	>	new NoOpREHandler());
983		shouldThrow();
984	<	}
524	<	catch (IllegalArgumentException success){}
984	>	} catch (IllegalArgumentException success) {}
985		}
986
987	<	/**
988	<	* Constructor throws if corePoolSize is greater than the maximumPoolSize
987	>	/**
988	>	* Constructor throws if corePoolSize is greater than the maximumPoolSize
989		*/
990		public void testConstructor20() {
991		try {
992	<	new ThreadPoolExecutor(2,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory(),new MyREHandler());
992	>	new ThreadPoolExecutor(2, 1, 1L, SECONDS,
993	>	new ArrayBlockingQueue<Runnable>(10),
994	>	new SimpleThreadFactory(),
995	>	new NoOpREHandler());
996		shouldThrow();
997	<	}
535	<	catch (IllegalArgumentException success){}
997	>	} catch (IllegalArgumentException success) {}
998		}
999
1000	<	/**
1001	<	* Constructor throws if workQueue is set to null
1000	>	/**
1001	>	* Constructor throws if workQueue is null
1002		*/
1003	<	public void testNullPointerException6() {
1003	>	public void testConstructorNullPointerException6() {
1004		try {
1005	<	new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,null,new MyThreadFactory(),new MyREHandler());
1005	>	new ThreadPoolExecutor(1, 2, 1L, SECONDS,
1006	>	(BlockingQueue) null,
1007	>	new SimpleThreadFactory(),
1008	>	new NoOpREHandler());
1009		shouldThrow();
1010	<	}
546	<	catch (NullPointerException success){}
1010	>	} catch (NullPointerException success) {}
1011		}
1012
1013	<	/**
1014	<	* Constructor throws if handler is set to null
1013	>	/**
1014	>	* Constructor throws if handler is null
1015		*/
1016	<	public void testNullPointerException7() {
1016	>	public void testConstructorNullPointerException7() {
1017		try {
1018	<	RejectedExecutionHandler r = null;
1019	<	new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory(),r);
1018	>	new ThreadPoolExecutor(1, 2, 1L, SECONDS,
1019	>	new ArrayBlockingQueue<Runnable>(10),
1020	>	new SimpleThreadFactory(),
1021	>	(RejectedExecutionHandler) null);
1022		shouldThrow();
1023	<	}
558	<	catch (NullPointerException success){}
1023	>	} catch (NullPointerException success) {}
1024		}
1025
1026	<	/**
1027	<	* Constructor throws if ThreadFactory is set top null
1026	>	/**
1027	>	* Constructor throws if ThreadFactory is null
1028		*/
1029	<	public void testNullPointerException8() {
1029	>	public void testConstructorNullPointerException8() {
1030		try {
1031	<	ThreadFactory f = null;
1032	<	new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10),f,new MyREHandler());
1031	>	new ThreadPoolExecutor(1, 2, 1L, SECONDS,
1032	>	new ArrayBlockingQueue<Runnable>(10),
1033	>	(ThreadFactory) null,
1034	>	new NoOpREHandler());
1035		shouldThrow();
1036	<	}
570	<	catch (NullPointerException successdn8){}
1036	>	} catch (NullPointerException success) {}
1037		}
572	–
1038
1039		/**
1040	<	*  execute throws RejectedExecutionException if shutdown
1040	>	* get of submitted callable throws InterruptedException if interrupted
1041		*/
1042	<	public void testRejectedExecutionException() {
1043	<	ThreadPoolExecutor tpe = null;
1044	<	try {
1045	<	tpe = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(1));
1046	<	} catch(Exception e){}
1047	<	tpe.shutdown();
1048	<	try {
1049	<	tpe.execute(new NoOpRunnable());
1050	<	shouldThrow();
1051	<	} catch(RejectedExecutionException success){}
1052	<
1053	<	joinPool(tpe);
1042	>	public void testInterruptedSubmit() throws InterruptedException {
1043	>	final CountDownLatch done = new CountDownLatch(1);
1044	>	final ThreadPoolExecutor p =
1045	>	new ThreadPoolExecutor(1, 1,
1046	>	60, SECONDS,
1047	>	new ArrayBlockingQueue<Runnable>(10));
1048	>
1049	>	try (PoolCleaner cleaner = cleaner(p, done)) {
1050	>	final CountDownLatch threadStarted = new CountDownLatch(1);
1051	>	Thread t = newStartedThread(new CheckedInterruptedRunnable() {
1052	>	public void realRun() throws Exception {
1053	>	Callable task = new CheckedCallable<Boolean>() {
1054	>	public Boolean realCall() throws InterruptedException {
1055	>	threadStarted.countDown();
1056	>	await(done);
1057	>	return Boolean.TRUE;
1058	>	}};
1059	>	p.submit(task).get();
1060	>	}});
1061	>
1062	>	await(threadStarted);
1063	>	t.interrupt();
1064	>	awaitTermination(t);
1065	>	}
1066		}
1067
1068		/**
1069	<	*  execute throws RejectedExecutionException
593	<	*  if saturated.
1069	>	* Submitted tasks are rejected when saturated.
1070		*/
1071	<	public void testSaturatedExecute() {
1072	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1));
1073	<	try {
1074	<
1075	<	for(int i = 0; i < 5; ++i){
1076	<	p.execute(new MediumRunnable());
1071	>	@SuppressWarnings("FutureReturnValueIgnored")
1072	>	public void testSubmittedTasksRejectedWhenSaturated() {
1073	>	final ThreadLocalRandom rnd = ThreadLocalRandom.current();
1074	>	final CountDownLatch done = new CountDownLatch(1);
1075	>	final Runnable r = awaiter(done);
1076	>	final Callable<Boolean> c = new CheckedCallable() {
1077	>	public Boolean realCall() throws InterruptedException {
1078	>	await(done);
1079	>	return Boolean.TRUE;
1080	>	}};
1081	>	final ThreadPoolExecutor p = new ThreadPoolExecutor(
1082	>	1, 1, 1, SECONDS, new ArrayBlockingQueue<Runnable>(1));
1083	>
1084	>	try (PoolCleaner cleaner = cleaner(p, done)) {
1085	>	// saturate
1086	>	for (int i = saturatedSize(p); i--> 0; ) {
1087	>	switch (rnd.nextInt(3)) {
1088	>	case 0: p.execute(r); break;
1089	>	case 1: assertFalse(p.submit(r).isDone()); break;
1090	>	case 2: assertFalse(p.submit(c).isDone()); break;
1091	>	}
1092		}
1093	<	shouldThrow();
1094	<	} catch(RejectedExecutionException success){}
1095	<	joinPool(p);
1093	>
1094	>	// check default handler
1095	>	assertTrue(p.getRejectedExecutionHandler() instanceof AbortPolicy);
1096	>	for (int i = 2; i--> 0; ) {
1097	>	try {
1098	>	p.execute(r);
1099	>	shouldThrow();
1100	>	} catch (RejectedExecutionException success) {}
1101	>	try {
1102	>	p.submit(r);
1103	>	shouldThrow();
1104	>	} catch (RejectedExecutionException success) {}
1105	>	try {
1106	>	p.submit(c);
1107	>	shouldThrow();
1108	>	} catch (RejectedExecutionException success) {}
1109	>	}
1110	>
1111	>	// check CallerRunsPolicy runs task in caller thread
1112	>	{
1113	>	RejectedExecutionHandler handler = new CallerRunsPolicy();
1114	>	p.setRejectedExecutionHandler(handler);
1115	>	assertSame(handler, p.getRejectedExecutionHandler());
1116	>	final AtomicReference<Thread> thread = new AtomicReference<>();
1117	>	p.execute(new Runnable() { public void run() {
1118	>	thread.set(Thread.currentThread()); }});
1119	>	assertSame(Thread.currentThread(), thread.get());
1120	>	}
1121	>
1122	>	// check DiscardPolicy does nothing
1123	>	{
1124	>	RejectedExecutionHandler handler = new DiscardPolicy();
1125	>	p.setRejectedExecutionHandler(handler);
1126	>	assertSame(handler, p.getRejectedExecutionHandler());
1127	>	final AtomicReference<Thread> thread = new AtomicReference<>();
1128	>	p.execute(new Runnable() { public void run() {
1129	>	thread.set(Thread.currentThread()); }});
1130	>	assertNull(thread.get());
1131	>	}
1132	>
1133	>	class Recorder implements RejectedExecutionHandler {
1134	>	public volatile Runnable r = null;
1135	>	public volatile ThreadPoolExecutor p = null;
1136	>	public void reset() { r = null; p = null; }
1137	>	public void rejectedExecution(Runnable r, ThreadPoolExecutor p) {
1138	>	assertNull(this.r);
1139	>	assertNull(this.p);
1140	>	this.r = r;
1141	>	this.p = p;
1142	>	}
1143	>	}
1144	>
1145	>	// check custom handler is invoked exactly once per task
1146	>	Recorder recorder = new Recorder();
1147	>	p.setRejectedExecutionHandler(recorder);
1148	>	assertSame(recorder, p.getRejectedExecutionHandler());
1149	>	for (int i = 2; i--> 0; ) {
1150	>	recorder.reset();
1151	>	p.execute(r);
1152	>	assertSame(r, recorder.r);
1153	>	assertSame(p, recorder.p);
1154	>
1155	>	recorder.reset();
1156	>	assertFalse(p.submit(r).isDone());
1157	>	assertTrue(recorder.r instanceof FutureTask);
1158	>	assertSame(p, recorder.p);
1159	>
1160	>	recorder.reset();
1161	>	assertFalse(p.submit(c).isDone());
1162	>	assertTrue(recorder.r instanceof FutureTask);
1163	>	assertSame(p, recorder.p);
1164	>	}
1165	>
1166	>	// check that pool was not perturbed by handlers
1167	>	assertEquals(2, p.getTaskCount());
1168	>	assertEquals(0, p.getCompletedTaskCount());
1169	>	assertEquals(0, p.getQueue().remainingCapacity());
1170	>	}
1171	>	assertEquals(saturatedSize(p), p.getCompletedTaskCount());
1172	>	}
1173	>
1174	>	/**
1175	>	* executor using CallerRunsPolicy runs task if saturated.
1176	>	*/
1177	>	public void testSaturatedExecute2() {
1178	>	final RejectedExecutionHandler handler = new CallerRunsPolicy();
1179	>	final ThreadPoolExecutor p = new ThreadPoolExecutor(
1180	>	1, 1, LONG_DELAY_MS, SECONDS, new ArrayBlockingQueue<Runnable>(1),
1181	>	handler);
1182	>	assertSame(handler, p.getRejectedExecutionHandler());
1183	>	final TrackedNoOpRunnable[] tasks = new TrackedNoOpRunnable[5];
1184	>	final CountDownLatch done = new CountDownLatch(1);
1185	>	try (PoolCleaner cleaner = cleaner(p, done)) {
1186	>	p.execute(awaiter(done));
1187	>
1188	>	for (int i = 0; i < tasks.length; i++)
1189	>	p.execute(tasks[i] = new TrackedNoOpRunnable());
1190	>
1191	>	for (int i = 1; i < tasks.length; i++)
1192	>	assertTrue(tasks[i].done);
1193	>	assertFalse(tasks[0].done); // waiting in queue
1194	>	}
1195	>	for (TrackedNoOpRunnable task : tasks)
1196	>	assertTrue(task.done);
1197	>	}
1198	>
1199	>	/**
1200	>	* executor using DiscardPolicy drops task if saturated.
1201	>	*/
1202	>	public void testSaturatedExecute3() {
1203	>	final RejectedExecutionHandler handler = new DiscardPolicy();
1204	>	final ThreadPoolExecutor p = new ThreadPoolExecutor(
1205	>	1, 1, LONG_DELAY_MS, SECONDS, new ArrayBlockingQueue<Runnable>(1),
1206	>	handler);
1207	>	assertSame(handler, p.getRejectedExecutionHandler());
1208	>	final TrackedNoOpRunnable[] tasks = new TrackedNoOpRunnable[5];
1209	>	final CountDownLatch done = new CountDownLatch(1);
1210	>	try (PoolCleaner cleaner = cleaner(p, done)) {
1211	>	p.execute(awaiter(done));
1212	>
1213	>	for (int i = 0; i < tasks.length; i++)
1214	>	p.execute(tasks[i] = new TrackedNoOpRunnable());
1215	>
1216	>	for (int i = 1; i < tasks.length; i++)
1217	>	assertFalse(tasks[i].done);
1218	>	}
1219	>	for (int i = 1; i < tasks.length; i++)
1220	>	assertFalse(tasks[i].done);
1221	>	assertTrue(tasks[0].done); // was waiting in queue
1222	>	}
1223	>
1224	>	/**
1225	>	* executor using DiscardOldestPolicy drops oldest task if saturated.
1226	>	*/
1227	>	public void testSaturatedExecute4() {
1228	>	final CountDownLatch done = new CountDownLatch(1);
1229	>	LatchAwaiter r1 = awaiter(done);
1230	>	LatchAwaiter r2 = awaiter(done);
1231	>	LatchAwaiter r3 = awaiter(done);
1232	>	final ThreadPoolExecutor p =
1233	>	new ThreadPoolExecutor(1, 1,
1234	>	LONG_DELAY_MS, MILLISECONDS,
1235	>	new ArrayBlockingQueue<Runnable>(1),
1236	>	new DiscardOldestPolicy());
1237	>	try (PoolCleaner cleaner = cleaner(p, done)) {
1238	>	assertEquals(LatchAwaiter.NEW, r1.state);
1239	>	assertEquals(LatchAwaiter.NEW, r2.state);
1240	>	assertEquals(LatchAwaiter.NEW, r3.state);
1241	>	p.execute(r1);
1242	>	p.execute(r2);
1243	>	assertTrue(p.getQueue().contains(r2));
1244	>	p.execute(r3);
1245	>	assertFalse(p.getQueue().contains(r2));
1246	>	assertTrue(p.getQueue().contains(r3));
1247	>	}
1248	>	assertEquals(LatchAwaiter.DONE, r1.state);
1249	>	assertEquals(LatchAwaiter.NEW, r2.state);
1250	>	assertEquals(LatchAwaiter.DONE, r3.state);
1251		}
1252
1253		/**
1254	<	*  execute (null) throws NPE
1254	>	* execute throws RejectedExecutionException if shutdown
1255	>	*/
1256	>	public void testRejectedExecutionExceptionOnShutdown() {
1257	>	final ThreadPoolExecutor p =
1258	>	new ThreadPoolExecutor(1, 1,
1259	>	LONG_DELAY_MS, MILLISECONDS,
1260	>	new ArrayBlockingQueue<Runnable>(1));
1261	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
1262	>	try (PoolCleaner cleaner = cleaner(p)) {
1263	>	try {
1264	>	p.execute(new NoOpRunnable());
1265	>	shouldThrow();
1266	>	} catch (RejectedExecutionException success) {}
1267	>	}
1268	>	}
1269	>
1270	>	/**
1271	>	* execute using CallerRunsPolicy drops task on shutdown
1272	>	*/
1273	>	public void testCallerRunsOnShutdown() {
1274	>	RejectedExecutionHandler h = new CallerRunsPolicy();
1275	>	final ThreadPoolExecutor p =
1276	>	new ThreadPoolExecutor(1, 1,
1277	>	LONG_DELAY_MS, MILLISECONDS,
1278	>	new ArrayBlockingQueue<Runnable>(1), h);
1279	>
1280	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
1281	>	try (PoolCleaner cleaner = cleaner(p)) {
1282	>	TrackedNoOpRunnable r = new TrackedNoOpRunnable();
1283	>	p.execute(r);
1284	>	assertFalse(r.done);
1285	>	}
1286	>	}
1287	>
1288	>	/**
1289	>	* execute using DiscardPolicy drops task on shutdown
1290	>	*/
1291	>	public void testDiscardOnShutdown() {
1292	>	final ThreadPoolExecutor p =
1293	>	new ThreadPoolExecutor(1, 1,
1294	>	LONG_DELAY_MS, MILLISECONDS,
1295	>	new ArrayBlockingQueue<Runnable>(1),
1296	>	new DiscardPolicy());
1297	>
1298	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
1299	>	try (PoolCleaner cleaner = cleaner(p)) {
1300	>	TrackedNoOpRunnable r = new TrackedNoOpRunnable();
1301	>	p.execute(r);
1302	>	assertFalse(r.done);
1303	>	}
1304	>	}
1305	>
1306	>	/**
1307	>	* execute using DiscardOldestPolicy drops task on shutdown
1308	>	*/
1309	>	public void testDiscardOldestOnShutdown() {
1310	>	final ThreadPoolExecutor p =
1311	>	new ThreadPoolExecutor(1, 1,
1312	>	LONG_DELAY_MS, MILLISECONDS,
1313	>	new ArrayBlockingQueue<Runnable>(1),
1314	>	new DiscardOldestPolicy());
1315	>
1316	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
1317	>	try (PoolCleaner cleaner = cleaner(p)) {
1318	>	TrackedNoOpRunnable r = new TrackedNoOpRunnable();
1319	>	p.execute(r);
1320	>	assertFalse(r.done);
1321	>	}
1322	>	}
1323	>
1324	>	/**
1325	>	* execute(null) throws NPE
1326		*/
1327		public void testExecuteNull() {
1328	<	ThreadPoolExecutor tpe = null;
1329	<	try {
1330	<	tpe = new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10));
1331	<	tpe.execute(null);
1332	<	shouldThrow();
1333	<	} catch(NullPointerException success){}
1334	<
1335	<	joinPool(tpe);
1328	>	final ThreadPoolExecutor p =
1329	>	new ThreadPoolExecutor(1, 2,
1330	>	1L, SECONDS,
1331	>	new ArrayBlockingQueue<Runnable>(10));
1332	>	try (PoolCleaner cleaner = cleaner(p)) {
1333	>	try {
1334	>	p.execute(null);
1335	>	shouldThrow();
1336	>	} catch (NullPointerException success) {}
1337	>	}
1338		}
1339	<
1339	>
1340		/**
1341	<	*  setCorePoolSize of netaitev value throws IllegalArgumentException
1341	>	* setCorePoolSize of negative value throws IllegalArgumentException
1342		*/
1343		public void testCorePoolSizeIllegalArgumentException() {
1344	<	ThreadPoolExecutor tpe = null;
1345	<	try {
1346	<	tpe = new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10));
1347	<	} catch(Exception e){}
1348	<	try {
1349	<	tpe.setCorePoolSize(-1);
1350	<	shouldThrow();
1351	<	} catch(IllegalArgumentException success){
1352	<	} finally {
1353	<	tpe.shutdown();
1354	<	}
1355	<	joinPool(tpe);
1356	<	}
1357	<
1358	<	/**
1359	<	*  setMaximumPoolSize(int) throws IllegalArgumentException if
641	<	*  given a value less the core pool size
642	<	*/
1344	>	final ThreadPoolExecutor p =
1345	>	new ThreadPoolExecutor(1, 2,
1346	>	LONG_DELAY_MS, MILLISECONDS,
1347	>	new ArrayBlockingQueue<Runnable>(10));
1348	>	try (PoolCleaner cleaner = cleaner(p)) {
1349	>	try {
1350	>	p.setCorePoolSize(-1);
1351	>	shouldThrow();
1352	>	} catch (IllegalArgumentException success) {}
1353	>	}
1354	>	}
1355	>
1356	>	/**
1357	>	* setMaximumPoolSize(int) throws IllegalArgumentException if
1358	>	* given a value less the core pool size
1359	>	*/
1360		public void testMaximumPoolSizeIllegalArgumentException() {
1361	<	ThreadPoolExecutor tpe = null;
1362	<	try {
1363	<	tpe = new ThreadPoolExecutor(2,3,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10));
1364	<	} catch(Exception e){}
1365	<	try {
1366	<	tpe.setMaximumPoolSize(1);
1367	<	shouldThrow();
1368	<	} catch(IllegalArgumentException success){
1369	<	} finally {
653	<	tpe.shutdown();
1361	>	final ThreadPoolExecutor p =
1362	>	new ThreadPoolExecutor(2, 3,
1363	>	LONG_DELAY_MS, MILLISECONDS,
1364	>	new ArrayBlockingQueue<Runnable>(10));
1365	>	try (PoolCleaner cleaner = cleaner(p)) {
1366	>	try {
1367	>	p.setMaximumPoolSize(1);
1368	>	shouldThrow();
1369	>	} catch (IllegalArgumentException success) {}
1370		}
655	–	joinPool(tpe);
1371		}
1372	<
1372	>
1373		/**
1374	<	*  setMaximumPoolSize throws IllegalArgumentException
1375	<	*  if given a negative value
1374	>	* setMaximumPoolSize throws IllegalArgumentException
1375	>	* if given a negative value
1376		*/
1377		public void testMaximumPoolSizeIllegalArgumentException2() {
1378	<	ThreadPoolExecutor tpe = null;
1379	<	try {
1380	<	tpe = new ThreadPoolExecutor(2,3,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10));
1381	<	} catch(Exception e){}
1382	<	try {
1383	<	tpe.setMaximumPoolSize(-1);
1384	<	shouldThrow();
1385	<	} catch(IllegalArgumentException success){
1386	<	} finally {
1387	<	tpe.shutdown();
1378	>	final ThreadPoolExecutor p =
1379	>	new ThreadPoolExecutor(2, 3,
1380	>	LONG_DELAY_MS, MILLISECONDS,
1381	>	new ArrayBlockingQueue<Runnable>(10));
1382	>	try (PoolCleaner cleaner = cleaner(p)) {
1383	>	try {
1384	>	p.setMaximumPoolSize(-1);
1385	>	shouldThrow();
1386	>	} catch (IllegalArgumentException success) {}
1387	>	}
1388	>	}
1389	>
1390	>	/**
1391	>	* Configuration changes that allow core pool size greater than
1392	>	* max pool size result in IllegalArgumentException.
1393	>	*/
1394	>	public void testPoolSizeInvariants() {
1395	>	final ThreadPoolExecutor p =
1396	>	new ThreadPoolExecutor(1, 1,
1397	>	LONG_DELAY_MS, MILLISECONDS,
1398	>	new ArrayBlockingQueue<Runnable>(10));
1399	>	try (PoolCleaner cleaner = cleaner(p)) {
1400	>	for (int s = 1; s < 5; s++) {
1401	>	p.setMaximumPoolSize(s);
1402	>	p.setCorePoolSize(s);
1403	>	try {
1404	>	p.setMaximumPoolSize(s - 1);
1405	>	shouldThrow();
1406	>	} catch (IllegalArgumentException success) {}
1407	>	assertEquals(s, p.getCorePoolSize());
1408	>	assertEquals(s, p.getMaximumPoolSize());
1409	>	try {
1410	>	p.setCorePoolSize(s + 1);
1411	>	shouldThrow();
1412	>	} catch (IllegalArgumentException success) {}
1413	>	assertEquals(s, p.getCorePoolSize());
1414	>	assertEquals(s, p.getMaximumPoolSize());
1415	>	}
1416		}
674	–	joinPool(tpe);
1417		}
676	–
1418
1419		/**
1420	<	*  setKeepAliveTime  throws IllegalArgumentException
1421	<	*  when given a negative value
1420	>	* setKeepAliveTime throws IllegalArgumentException
1421	>	* when given a negative value
1422		*/
1423		public void testKeepAliveTimeIllegalArgumentException() {
1424	<	ThreadPoolExecutor tpe = null;
1425	<	try {
1426	<	tpe = new ThreadPoolExecutor(2,3,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10));
1427	<	} catch(Exception e){}
1428	<
1429	<	try {
1430	<	tpe.setKeepAliveTime(-1,TimeUnit.MILLISECONDS);
1431	<	shouldThrow();
1432	<	} catch(IllegalArgumentException success){
1433	<	} finally {
1434	<	tpe.shutdown();
1424	>	final ThreadPoolExecutor p =
1425	>	new ThreadPoolExecutor(2, 3,
1426	>	LONG_DELAY_MS, MILLISECONDS,
1427	>	new ArrayBlockingQueue<Runnable>(10));
1428	>	try (PoolCleaner cleaner = cleaner(p)) {
1429	>	try {
1430	>	p.setKeepAliveTime(-1, MILLISECONDS);
1431	>	shouldThrow();
1432	>	} catch (IllegalArgumentException success) {}
1433	>	}
1434	>	}
1435	>
1436	>	/**
1437	>	* terminated() is called on termination
1438	>	*/
1439	>	public void testTerminated() {
1440	>	ExtendedTPE p = new ExtendedTPE();
1441	>	try (PoolCleaner cleaner = cleaner(p)) {
1442	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
1443	>	assertTrue(p.terminatedCalled());
1444	>	assertTrue(p.isShutdown());
1445	>	}
1446	>	}
1447	>
1448	>	/**
1449	>	* beforeExecute and afterExecute are called when executing task
1450	>	*/
1451	>	public void testBeforeAfter() throws InterruptedException {
1452	>	ExtendedTPE p = new ExtendedTPE();
1453	>	try (PoolCleaner cleaner = cleaner(p)) {
1454	>	final CountDownLatch done = new CountDownLatch(1);
1455	>	p.execute(new CheckedRunnable() {
1456	>	public void realRun() {
1457	>	done.countDown();
1458	>	}});
1459	>	await(p.afterCalled);
1460	>	assertEquals(0, done.getCount());
1461	>	assertTrue(p.afterCalled());
1462	>	assertTrue(p.beforeCalled());
1463	>	}
1464	>	}
1465	>
1466	>	/**
1467	>	* completed submit of callable returns result
1468	>	*/
1469	>	public void testSubmitCallable() throws Exception {
1470	>	final ExecutorService e =
1471	>	new ThreadPoolExecutor(2, 2,
1472	>	LONG_DELAY_MS, MILLISECONDS,
1473	>	new ArrayBlockingQueue<Runnable>(10));
1474	>	try (PoolCleaner cleaner = cleaner(e)) {
1475	>	Future<String> future = e.submit(new StringTask());
1476	>	String result = future.get();
1477	>	assertSame(TEST_STRING, result);
1478	>	}
1479	>	}
1480	>
1481	>	/**
1482	>	* completed submit of runnable returns successfully
1483	>	*/
1484	>	public void testSubmitRunnable() throws Exception {
1485	>	final ExecutorService e =
1486	>	new ThreadPoolExecutor(2, 2,
1487	>	LONG_DELAY_MS, MILLISECONDS,
1488	>	new ArrayBlockingQueue<Runnable>(10));
1489	>	try (PoolCleaner cleaner = cleaner(e)) {
1490	>	Future<?> future = e.submit(new NoOpRunnable());
1491	>	future.get();
1492	>	assertTrue(future.isDone());
1493	>	}
1494	>	}
1495	>
1496	>	/**
1497	>	* completed submit of (runnable, result) returns result
1498	>	*/
1499	>	public void testSubmitRunnable2() throws Exception {
1500	>	final ExecutorService e =
1501	>	new ThreadPoolExecutor(2, 2,
1502	>	LONG_DELAY_MS, MILLISECONDS,
1503	>	new ArrayBlockingQueue<Runnable>(10));
1504	>	try (PoolCleaner cleaner = cleaner(e)) {
1505	>	Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING);
1506	>	String result = future.get();
1507	>	assertSame(TEST_STRING, result);
1508	>	}
1509	>	}
1510	>
1511	>	/**
1512	>	* invokeAny(null) throws NPE
1513	>	*/
1514	>	public void testInvokeAny1() throws Exception {
1515	>	final ExecutorService e =
1516	>	new ThreadPoolExecutor(2, 2,
1517	>	LONG_DELAY_MS, MILLISECONDS,
1518	>	new ArrayBlockingQueue<Runnable>(10));
1519	>	try (PoolCleaner cleaner = cleaner(e)) {
1520	>	try {
1521	>	e.invokeAny(null);
1522	>	shouldThrow();
1523	>	} catch (NullPointerException success) {}
1524	>	}
1525	>	}
1526	>
1527	>	/**
1528	>	* invokeAny(empty collection) throws IllegalArgumentException
1529	>	*/
1530	>	public void testInvokeAny2() throws Exception {
1531	>	final ExecutorService e =
1532	>	new ThreadPoolExecutor(2, 2,
1533	>	LONG_DELAY_MS, MILLISECONDS,
1534	>	new ArrayBlockingQueue<Runnable>(10));
1535	>	try (PoolCleaner cleaner = cleaner(e)) {
1536	>	try {
1537	>	e.invokeAny(new ArrayList<Callable<String>>());
1538	>	shouldThrow();
1539	>	} catch (IllegalArgumentException success) {}
1540	>	}
1541	>	}
1542	>
1543	>	/**
1544	>	* invokeAny(c) throws NPE if c has null elements
1545	>	*/
1546	>	public void testInvokeAny3() throws Exception {
1547	>	final CountDownLatch latch = new CountDownLatch(1);
1548	>	final ExecutorService e =
1549	>	new ThreadPoolExecutor(2, 2,
1550	>	LONG_DELAY_MS, MILLISECONDS,
1551	>	new ArrayBlockingQueue<Runnable>(10));
1552	>	try (PoolCleaner cleaner = cleaner(e)) {
1553	>	List<Callable<String>> l = new ArrayList<>();
1554	>	l.add(latchAwaitingStringTask(latch));
1555	>	l.add(null);
1556	>	try {
1557	>	e.invokeAny(l);
1558	>	shouldThrow();
1559	>	} catch (NullPointerException success) {}
1560	>	latch.countDown();
1561	>	}
1562	>	}
1563	>
1564	>	/**
1565	>	* invokeAny(c) throws ExecutionException if no task completes
1566	>	*/
1567	>	public void testInvokeAny4() throws Exception {
1568	>	final ExecutorService e =
1569	>	new ThreadPoolExecutor(2, 2,
1570	>	LONG_DELAY_MS, MILLISECONDS,
1571	>	new ArrayBlockingQueue<Runnable>(10));
1572	>	try (PoolCleaner cleaner = cleaner(e)) {
1573	>	List<Callable<String>> l = new ArrayList<>();
1574	>	l.add(new NPETask());
1575	>	try {
1576	>	e.invokeAny(l);
1577	>	shouldThrow();
1578	>	} catch (ExecutionException success) {
1579	>	assertTrue(success.getCause() instanceof NullPointerException);
1580	>	}
1581	>	}
1582	>	}
1583	>
1584	>	/**
1585	>	* invokeAny(c) returns result of some task
1586	>	*/
1587	>	public void testInvokeAny5() throws Exception {
1588	>	final ExecutorService e =
1589	>	new ThreadPoolExecutor(2, 2,
1590	>	LONG_DELAY_MS, MILLISECONDS,
1591	>	new ArrayBlockingQueue<Runnable>(10));
1592	>	try (PoolCleaner cleaner = cleaner(e)) {
1593	>	List<Callable<String>> l = new ArrayList<>();
1594	>	l.add(new StringTask());
1595	>	l.add(new StringTask());
1596	>	String result = e.invokeAny(l);
1597	>	assertSame(TEST_STRING, result);
1598	>	}
1599	>	}
1600	>
1601	>	/**
1602	>	* invokeAll(null) throws NPE
1603	>	*/
1604	>	public void testInvokeAll1() throws Exception {
1605	>	final ExecutorService e =
1606	>	new ThreadPoolExecutor(2, 2,
1607	>	LONG_DELAY_MS, MILLISECONDS,
1608	>	new ArrayBlockingQueue<Runnable>(10));
1609	>	try (PoolCleaner cleaner = cleaner(e)) {
1610	>	try {
1611	>	e.invokeAll(null);
1612	>	shouldThrow();
1613	>	} catch (NullPointerException success) {}
1614	>	}
1615	>	}
1616	>
1617	>	/**
1618	>	* invokeAll(empty collection) returns empty list
1619	>	*/
1620	>	public void testInvokeAll2() throws InterruptedException {
1621	>	final ExecutorService e =
1622	>	new ThreadPoolExecutor(2, 2,
1623	>	LONG_DELAY_MS, MILLISECONDS,
1624	>	new ArrayBlockingQueue<Runnable>(10));
1625	>	final Collection<Callable<String>> emptyCollection
1626	>	= Collections.emptyList();
1627	>	try (PoolCleaner cleaner = cleaner(e)) {
1628	>	List<Future<String>> r = e.invokeAll(emptyCollection);
1629	>	assertTrue(r.isEmpty());
1630	>	}
1631	>	}
1632	>
1633	>	/**
1634	>	* invokeAll(c) throws NPE if c has null elements
1635	>	*/
1636	>	public void testInvokeAll3() throws Exception {
1637	>	final ExecutorService e =
1638	>	new ThreadPoolExecutor(2, 2,
1639	>	LONG_DELAY_MS, MILLISECONDS,
1640	>	new ArrayBlockingQueue<Runnable>(10));
1641	>	try (PoolCleaner cleaner = cleaner(e)) {
1642	>	List<Callable<String>> l = new ArrayList<>();
1643	>	l.add(new StringTask());
1644	>	l.add(null);
1645	>	try {
1646	>	e.invokeAll(l);
1647	>	shouldThrow();
1648	>	} catch (NullPointerException success) {}
1649	>	}
1650	>	}
1651	>
1652	>	/**
1653	>	* get of element of invokeAll(c) throws exception on failed task
1654	>	*/
1655	>	public void testInvokeAll4() throws Exception {
1656	>	final ExecutorService e =
1657	>	new ThreadPoolExecutor(2, 2,
1658	>	LONG_DELAY_MS, MILLISECONDS,
1659	>	new ArrayBlockingQueue<Runnable>(10));
1660	>	try (PoolCleaner cleaner = cleaner(e)) {
1661	>	List<Callable<String>> l = new ArrayList<>();
1662	>	l.add(new NPETask());
1663	>	List<Future<String>> futures = e.invokeAll(l);
1664	>	assertEquals(1, futures.size());
1665	>	try {
1666	>	futures.get(0).get();
1667	>	shouldThrow();
1668	>	} catch (ExecutionException success) {
1669	>	assertTrue(success.getCause() instanceof NullPointerException);
1670	>	}
1671	>	}
1672	>	}
1673	>
1674	>	/**
1675	>	* invokeAll(c) returns results of all completed tasks
1676	>	*/
1677	>	public void testInvokeAll5() 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	>	l.add(new StringTask());
1686	>	List<Future<String>> futures = e.invokeAll(l);
1687	>	assertEquals(2, futures.size());
1688	>	for (Future<String> future : futures)
1689	>	assertSame(TEST_STRING, future.get());
1690	>	}
1691	>	}
1692	>
1693	>	/**
1694	>	* timed invokeAny(null) throws NPE
1695	>	*/
1696	>	public void testTimedInvokeAny1() throws Exception {
1697	>	final ExecutorService e =
1698	>	new ThreadPoolExecutor(2, 2,
1699	>	LONG_DELAY_MS, MILLISECONDS,
1700	>	new ArrayBlockingQueue<Runnable>(10));
1701	>	try (PoolCleaner cleaner = cleaner(e)) {
1702	>	try {
1703	>	e.invokeAny(null, randomTimeout(), randomTimeUnit());
1704	>	shouldThrow();
1705	>	} catch (NullPointerException success) {}
1706	>	}
1707	>	}
1708	>
1709	>	/**
1710	>	* timed invokeAny(,,null) throws NPE
1711	>	*/
1712	>	public void testTimedInvokeAnyNullTimeUnit() 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	>	try {
1721	>	e.invokeAny(l, randomTimeout(), null);
1722	>	shouldThrow();
1723	>	} catch (NullPointerException success) {}
1724	>	}
1725	>	}
1726	>
1727	>	/**
1728	>	* timed invokeAny(empty collection) throws IllegalArgumentException
1729	>	*/
1730	>	public void testTimedInvokeAny2() throws Exception {
1731	>	final ExecutorService e =
1732	>	new ThreadPoolExecutor(2, 2,
1733	>	LONG_DELAY_MS, MILLISECONDS,
1734	>	new ArrayBlockingQueue<Runnable>(10));
1735	>	try (PoolCleaner cleaner = cleaner(e)) {
1736	>	try {
1737	>	e.invokeAny(new ArrayList<Callable<String>>(),
1738	>	randomTimeout(), randomTimeUnit());
1739	>	shouldThrow();
1740	>	} catch (IllegalArgumentException success) {}
1741	>	}
1742	>	}
1743	>
1744	>	/**
1745	>	* timed invokeAny(c) throws NullPointerException if c has null elements
1746	>	*/
1747	>	public void testTimedInvokeAny3() throws Exception {
1748	>	final CountDownLatch latch = new CountDownLatch(1);
1749	>	final ExecutorService e =
1750	>	new ThreadPoolExecutor(2, 2,
1751	>	LONG_DELAY_MS, MILLISECONDS,
1752	>	new ArrayBlockingQueue<Runnable>(10));
1753	>	try (PoolCleaner cleaner = cleaner(e)) {
1754	>	List<Callable<String>> l = new ArrayList<>();
1755	>	l.add(latchAwaitingStringTask(latch));
1756	>	l.add(null);
1757	>	try {
1758	>	e.invokeAny(l, randomTimeout(), randomTimeUnit());
1759	>	shouldThrow();
1760	>	} catch (NullPointerException success) {}
1761	>	latch.countDown();
1762	>	}
1763	>	}
1764	>
1765	>	/**
1766	>	* timed invokeAny(c) throws ExecutionException if no task completes
1767	>	*/
1768	>	public void testTimedInvokeAny4() throws Exception {
1769	>	final ExecutorService e =
1770	>	new ThreadPoolExecutor(2, 2,
1771	>	LONG_DELAY_MS, MILLISECONDS,
1772	>	new ArrayBlockingQueue<Runnable>(10));
1773	>	try (PoolCleaner cleaner = cleaner(e)) {
1774	>	long startTime = System.nanoTime();
1775	>	List<Callable<String>> l = new ArrayList<>();
1776	>	l.add(new NPETask());
1777	>	try {
1778	>	e.invokeAny(l, LONG_DELAY_MS, MILLISECONDS);
1779	>	shouldThrow();
1780	>	} catch (ExecutionException success) {
1781	>	assertTrue(success.getCause() instanceof NullPointerException);
1782	>	}
1783	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1784	>	}
1785	>	}
1786	>
1787	>	/**
1788	>	* timed invokeAny(c) returns result of some task
1789	>	*/
1790	>	public void testTimedInvokeAny5() throws Exception {
1791	>	final ExecutorService e =
1792	>	new ThreadPoolExecutor(2, 2,
1793	>	LONG_DELAY_MS, MILLISECONDS,
1794	>	new ArrayBlockingQueue<Runnable>(10));
1795	>	try (PoolCleaner cleaner = cleaner(e)) {
1796	>	long startTime = System.nanoTime();
1797	>	List<Callable<String>> l = new ArrayList<>();
1798	>	l.add(new StringTask());
1799	>	l.add(new StringTask());
1800	>	String result = e.invokeAny(l, LONG_DELAY_MS, MILLISECONDS);
1801	>	assertSame(TEST_STRING, result);
1802	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1803	>	}
1804	>	}
1805	>
1806	>	/**
1807	>	* timed invokeAll(null) throws NPE
1808	>	*/
1809	>	public void testTimedInvokeAll1() throws Exception {
1810	>	final ExecutorService e =
1811	>	new ThreadPoolExecutor(2, 2,
1812	>	LONG_DELAY_MS, MILLISECONDS,
1813	>	new ArrayBlockingQueue<Runnable>(10));
1814	>	try (PoolCleaner cleaner = cleaner(e)) {
1815	>	try {
1816	>	e.invokeAll(null, randomTimeout(), randomTimeUnit());
1817	>	shouldThrow();
1818	>	} catch (NullPointerException success) {}
1819	>	}
1820	>	}
1821	>
1822	>	/**
1823	>	* timed invokeAll(,,null) throws NPE
1824	>	*/
1825	>	public void testTimedInvokeAllNullTimeUnit() throws Exception {
1826	>	final ExecutorService e =
1827	>	new ThreadPoolExecutor(2, 2,
1828	>	LONG_DELAY_MS, MILLISECONDS,
1829	>	new ArrayBlockingQueue<Runnable>(10));
1830	>	try (PoolCleaner cleaner = cleaner(e)) {
1831	>	List<Callable<String>> l = new ArrayList<>();
1832	>	l.add(new StringTask());
1833	>	try {
1834	>	e.invokeAll(l, randomTimeout(), null);
1835	>	shouldThrow();
1836	>	} catch (NullPointerException success) {}
1837	>	}
1838	>	}
1839	>
1840	>	/**
1841	>	* timed invokeAll(empty collection) returns empty list
1842	>	*/
1843	>	public void testTimedInvokeAll2() throws InterruptedException {
1844	>	final ExecutorService e =
1845	>	new ThreadPoolExecutor(2, 2,
1846	>	LONG_DELAY_MS, MILLISECONDS,
1847	>	new ArrayBlockingQueue<Runnable>(10));
1848	>	final Collection<Callable<String>> emptyCollection
1849	>	= Collections.emptyList();
1850	>	try (PoolCleaner cleaner = cleaner(e)) {
1851	>	List<Future<String>> r =
1852	>	e.invokeAll(emptyCollection, randomTimeout(), randomTimeUnit());
1853	>	assertTrue(r.isEmpty());
1854	>	}
1855	>	}
1856	>
1857	>	/**
1858	>	* timed invokeAll(c) throws NPE if c has null elements
1859	>	*/
1860	>	public void testTimedInvokeAll3() throws Exception {
1861	>	final ExecutorService e =
1862	>	new ThreadPoolExecutor(2, 2,
1863	>	LONG_DELAY_MS, MILLISECONDS,
1864	>	new ArrayBlockingQueue<Runnable>(10));
1865	>	try (PoolCleaner cleaner = cleaner(e)) {
1866	>	List<Callable<String>> l = new ArrayList<>();
1867	>	l.add(new StringTask());
1868	>	l.add(null);
1869	>	try {
1870	>	e.invokeAll(l, randomTimeout(), randomTimeUnit());
1871	>	shouldThrow();
1872	>	} catch (NullPointerException success) {}
1873	>	}
1874	>	}
1875	>
1876	>	/**
1877	>	* get of element of invokeAll(c) throws exception on failed task
1878	>	*/
1879	>	public void testTimedInvokeAll4() throws Exception {
1880	>	final ExecutorService e =
1881	>	new ThreadPoolExecutor(2, 2,
1882	>	LONG_DELAY_MS, MILLISECONDS,
1883	>	new ArrayBlockingQueue<Runnable>(10));
1884	>	try (PoolCleaner cleaner = cleaner(e)) {
1885	>	List<Callable<String>> l = new ArrayList<>();
1886	>	l.add(new NPETask());
1887	>	List<Future<String>> futures =
1888	>	e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS);
1889	>	assertEquals(1, futures.size());
1890	>	try {
1891	>	futures.get(0).get();
1892	>	shouldThrow();
1893	>	} catch (ExecutionException success) {
1894	>	assertTrue(success.getCause() instanceof NullPointerException);
1895	>	}
1896	>	}
1897	>	}
1898	>
1899	>	/**
1900	>	* timed invokeAll(c) returns results of all completed tasks
1901	>	*/
1902	>	public void testTimedInvokeAll5() throws Exception {
1903	>	final ExecutorService e =
1904	>	new ThreadPoolExecutor(2, 2,
1905	>	LONG_DELAY_MS, MILLISECONDS,
1906	>	new ArrayBlockingQueue<Runnable>(10));
1907	>	try (PoolCleaner cleaner = cleaner(e)) {
1908	>	List<Callable<String>> l = new ArrayList<>();
1909	>	l.add(new StringTask());
1910	>	l.add(new StringTask());
1911	>	List<Future<String>> futures =
1912	>	e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS);
1913	>	assertEquals(2, futures.size());
1914	>	for (Future<String> future : futures)
1915	>	assertSame(TEST_STRING, future.get());
1916	>	}
1917	>	}
1918	>
1919	>	/**
1920	>	* timed invokeAll(c) cancels tasks not completed by timeout
1921	>	*/
1922	>	public void testTimedInvokeAll6() throws Exception {
1923	>	for (long timeout = timeoutMillis();;) {
1924	>	final CountDownLatch done = new CountDownLatch(1);
1925	>	final Callable<String> waiter = new CheckedCallable<String>() {
1926	>	public String realCall() {
1927	>	try { done.await(LONG_DELAY_MS, MILLISECONDS); }
1928	>	catch (InterruptedException ok) {}
1929	>	return "1"; }};
1930	>	final ExecutorService p =
1931	>	new ThreadPoolExecutor(2, 2,
1932	>	LONG_DELAY_MS, MILLISECONDS,
1933	>	new ArrayBlockingQueue<Runnable>(10));
1934	>	try (PoolCleaner cleaner = cleaner(p, done)) {
1935	>	List<Callable<String>> tasks = new ArrayList<>();
1936	>	tasks.add(new StringTask("0"));
1937	>	tasks.add(waiter);
1938	>	tasks.add(new StringTask("2"));
1939	>	long startTime = System.nanoTime();
1940	>	List<Future<String>> futures =
1941	>	p.invokeAll(tasks, timeout, MILLISECONDS);
1942	>	assertEquals(tasks.size(), futures.size());
1943	>	assertTrue(millisElapsedSince(startTime) >= timeout);
1944	>	for (Future future : futures)
1945	>	assertTrue(future.isDone());
1946	>	assertTrue(futures.get(1).isCancelled());
1947	>	try {
1948	>	assertEquals("0", futures.get(0).get());
1949	>	assertEquals("2", futures.get(2).get());
1950	>	break;
1951	>	} catch (CancellationException retryWithLongerTimeout) {
1952	>	timeout *= 2;
1953	>	if (timeout >= LONG_DELAY_MS / 2)
1954	>	fail("expected exactly one task to be cancelled");
1955	>	}
1956	>	}
1957	>	}
1958	>	}
1959	>
1960	>	/**
1961	>	* Execution continues if there is at least one thread even if
1962	>	* thread factory fails to create more
1963	>	*/
1964	>	public void testFailingThreadFactory() throws InterruptedException {
1965	>	final ExecutorService e =
1966	>	new ThreadPoolExecutor(100, 100,
1967	>	LONG_DELAY_MS, MILLISECONDS,
1968	>	new LinkedBlockingQueue<Runnable>(),
1969	>	new FailingThreadFactory());
1970	>	try (PoolCleaner cleaner = cleaner(e)) {
1971	>	final int TASKS = 100;
1972	>	final CountDownLatch done = new CountDownLatch(TASKS);
1973	>	for (int k = 0; k < TASKS; ++k)
1974	>	e.execute(new CheckedRunnable() {
1975	>	public void realRun() {
1976	>	done.countDown();
1977	>	}});
1978	>	await(done);
1979	>	}
1980	>	}
1981	>
1982	>	/**
1983	>	* allowsCoreThreadTimeOut is by default false.
1984	>	*/
1985	>	public void testAllowsCoreThreadTimeOut() {
1986	>	final ThreadPoolExecutor p =
1987	>	new ThreadPoolExecutor(2, 2,
1988	>	1000, MILLISECONDS,
1989	>	new ArrayBlockingQueue<Runnable>(10));
1990	>	try (PoolCleaner cleaner = cleaner(p)) {
1991	>	assertFalse(p.allowsCoreThreadTimeOut());
1992	>	}
1993	>	}
1994	>
1995	>	/**
1996	>	* allowCoreThreadTimeOut(true) causes idle threads to time out
1997	>	*/
1998	>	public void testAllowCoreThreadTimeOut_true() throws Exception {
1999	>	long keepAliveTime = timeoutMillis();
2000	>	final ThreadPoolExecutor p =
2001	>	new ThreadPoolExecutor(2, 10,
2002	>	keepAliveTime, MILLISECONDS,
2003	>	new ArrayBlockingQueue<Runnable>(10));
2004	>	try (PoolCleaner cleaner = cleaner(p)) {
2005	>	final CountDownLatch threadStarted = new CountDownLatch(1);
2006	>	p.allowCoreThreadTimeOut(true);
2007	>	p.execute(new CheckedRunnable() {
2008	>	public void realRun() {
2009	>	threadStarted.countDown();
2010	>	assertEquals(1, p.getPoolSize());
2011	>	}});
2012	>	await(threadStarted);
2013	>	delay(keepAliveTime);
2014	>	long startTime = System.nanoTime();
2015	>	while (p.getPoolSize() > 0
2016	>	&& millisElapsedSince(startTime) < LONG_DELAY_MS)
2017	>	Thread.yield();
2018	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
2019	>	assertEquals(0, p.getPoolSize());
2020	>	}
2021	>	}
2022	>
2023	>	/**
2024	>	* allowCoreThreadTimeOut(false) causes idle threads not to time out
2025	>	*/
2026	>	public void testAllowCoreThreadTimeOut_false() throws Exception {
2027	>	long keepAliveTime = timeoutMillis();
2028	>	final ThreadPoolExecutor p =
2029	>	new ThreadPoolExecutor(2, 10,
2030	>	keepAliveTime, MILLISECONDS,
2031	>	new ArrayBlockingQueue<Runnable>(10));
2032	>	try (PoolCleaner cleaner = cleaner(p)) {
2033	>	final CountDownLatch threadStarted = new CountDownLatch(1);
2034	>	p.allowCoreThreadTimeOut(false);
2035	>	p.execute(new CheckedRunnable() {
2036	>	public void realRun() throws InterruptedException {
2037	>	threadStarted.countDown();
2038	>	assertTrue(p.getPoolSize() >= 1);
2039	>	}});
2040	>	delay(2 * keepAliveTime);
2041	>	assertTrue(p.getPoolSize() >= 1);
2042	>	}
2043	>	}
2044	>
2045	>	/**
2046	>	* execute allows the same task to be submitted multiple times, even
2047	>	* if rejected
2048	>	*/
2049	>	public void testRejectedRecycledTask() throws InterruptedException {
2050	>	final int nTasks = 1000;
2051	>	final CountDownLatch done = new CountDownLatch(nTasks);
2052	>	final Runnable recycledTask = new Runnable() {
2053	>	public void run() {
2054	>	done.countDown();
2055	>	}};
2056	>	final ThreadPoolExecutor p =
2057	>	new ThreadPoolExecutor(1, 30,
2058	>	60, SECONDS,
2059	>	new ArrayBlockingQueue(30));
2060	>	try (PoolCleaner cleaner = cleaner(p)) {
2061	>	for (int i = 0; i < nTasks; ++i) {
2062	>	for (;;) {
2063	>	try {
2064	>	p.execute(recycledTask);
2065	>	break;
2066	>	}
2067	>	catch (RejectedExecutionException ignore) {}
2068	>	}
2069	>	}
2070	>	// enough time to run all tasks
2071	>	await(done, nTasks * SHORT_DELAY_MS);
2072		}
695	–	joinPool(tpe);
2073		}
2074	<
2074	>
2075	>	/**
2076	>	* get(cancelled task) throws CancellationException
2077	>	*/
2078	>	public void testGet_cancelled() throws Exception {
2079	>	final CountDownLatch done = new CountDownLatch(1);
2080	>	final ExecutorService e =
2081	>	new ThreadPoolExecutor(1, 1,
2082	>	LONG_DELAY_MS, MILLISECONDS,
2083	>	new LinkedBlockingQueue<Runnable>());
2084	>	try (PoolCleaner cleaner = cleaner(e, done)) {
2085	>	final CountDownLatch blockerStarted = new CountDownLatch(1);
2086	>	final List<Future<?>> futures = new ArrayList<>();
2087	>	for (int i = 0; i < 2; i++) {
2088	>	Runnable r = new CheckedRunnable() { public void realRun()
2089	>	throws Throwable {
2090	>	blockerStarted.countDown();
2091	>	assertTrue(done.await(2 * LONG_DELAY_MS, MILLISECONDS));
2092	>	}};
2093	>	futures.add(e.submit(r));
2094	>	}
2095	>	await(blockerStarted);
2096	>	for (Future<?> future : futures) future.cancel(false);
2097	>	for (Future<?> future : futures) {
2098	>	try {
2099	>	future.get();
2100	>	shouldThrow();
2101	>	} catch (CancellationException success) {}
2102	>	try {
2103	>	future.get(LONG_DELAY_MS, MILLISECONDS);
2104	>	shouldThrow();
2105	>	} catch (CancellationException success) {}
2106	>	assertTrue(future.isCancelled());
2107	>	assertTrue(future.isDone());
2108	>	}
2109	>	}
2110	>	}
2111	>
2112	>	/** Directly test simple ThreadPoolExecutor RejectedExecutionHandlers. */
2113	>	public void testStandardRejectedExecutionHandlers() {
2114	>	final ThreadPoolExecutor p =
2115	>	new ThreadPoolExecutor(1, 1, 1, SECONDS,
2116	>	new ArrayBlockingQueue<Runnable>(1));
2117	>	final AtomicReference<Thread> thread = new AtomicReference<>();
2118	>	final Runnable r = new Runnable() { public void run() {
2119	>	thread.set(Thread.currentThread()); }};
2120	>
2121	>	try {
2122	>	new AbortPolicy().rejectedExecution(r, p);
2123	>	shouldThrow();
2124	>	} catch (RejectedExecutionException success) {}
2125	>	assertNull(thread.get());
2126	>
2127	>	new DiscardPolicy().rejectedExecution(r, p);
2128	>	assertNull(thread.get());
2129	>
2130	>	new CallerRunsPolicy().rejectedExecution(r, p);
2131	>	assertSame(Thread.currentThread(), thread.get());
2132	>
2133	>	// check that pool was not perturbed by handlers
2134	>	assertTrue(p.getRejectedExecutionHandler() instanceof AbortPolicy);
2135	>	assertEquals(0, p.getTaskCount());
2136	>	assertTrue(p.getQueue().isEmpty());
2137	>	}
2138	>
2139		}

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