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

Comparing jsr166/src/test/tck/ThreadPoolExecutorTest.java (file contents):
Revision 1.1 by dl, Sun Aug 31 19:24:56 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	<	public class ThreadPoolExecutorTest extends TestCase{
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		}
16	–
17	–
47		public static Test suite() {
48		return new TestSuite(ThreadPoolExecutorTest.class);
49		}
50	<
51	<	private static long SHORT_DELAY_MS = 100;
52	<	private static long MEDIUM_DELAY_MS = 1000;
53	<	private static long LONG_DELAY_MS = 10000;
54	<
55	<	//---- testThread class to implement ThreadFactory for use in constructors
56	<	static class testThread implements ThreadFactory{
57	<	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	<	//---- testReject class to implement RejectedExecutionHandler for use in the constructors
89	<	static class testReject implements RejectedExecutionHandler{
90	<	public void rejectedExecution(Runnable r, ThreadPoolExecutor executor){}
88	>	/**
89	>	* execute successfully executes a runnable
90	>	*/
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	<	public Runnable newRunnable(){
106	<	return new Runnable(){
107	<	public void run(){
108	<	try{Thread.sleep(MEDIUM_DELAY_MS);
109	<	} catch(Exception e){
110	<	}
111	<	}
112	<	};
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
48	–
129		/**
130	<	*  Test to verify that 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, 1, TimeUnit.SECONDS, 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(SHORT_DELAY_MS * 2);
145	<	}catch(InterruptedException e){
146	<	fail("unexpected exception");
147	<	} finally {
148	<	one.shutdown();
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	<	*  Test to verify getActiveCount gives correct values
156	>	* prestartAllCoreThreads starts all corePoolSize threads
157		*/
158	<	public void testGetActiveCount(){
159	<	ThreadPoolExecutor two = new ThreadPoolExecutor(2, 2, 1, TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10));
160	<	try {
161	<	assertEquals(0, two.getActiveCount());
162	<	two.execute(newRunnable());
163	<	try{Thread.sleep(10);}catch(Exception e){}
164	<	assertEquals(1, two.getActiveCount());
165	<	} finally {
166	<	two.shutdown();
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	<
176	>
177		/**
178	<	*  Test to verify getCompleteTaskCount gives correct values
178	>	* getCompletedTaskCount increases, but doesn't overestimate,
179	>	* when tasks complete
180		*/
181	<	public void testGetCompletedTaskCount(){
182	<	ThreadPoolExecutor two = new ThreadPoolExecutor(2, 2, 1, TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10));
183	<	try {
184	<	assertEquals(0, two.getCompletedTaskCount());
185	<	two.execute(newRunnable());
186	<	try{Thread.sleep(2000);}catch(Exception e){}
187	<	assertEquals(1, two.getCompletedTaskCount());
188	<	} finally {
189	<	two.shutdown();
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	<	*  Test to verify getCorePoolSize gives correct values
212	>	* getCorePoolSize returns size given in constructor if not otherwise set
213		*/
214	<	public void testGetCorePoolSize(){
215	<	ThreadPoolExecutor one = new ThreadPoolExecutor(1, 1, 1, TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10));
216	<	try {
217	<	assertEquals(1, one.getCorePoolSize());
218	<	} finally {
219	<	one.shutdown();
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	<
223	>
224		/**
225	<	*  Test to verify getKeepAliveTime gives correct values
225	>	* getKeepAliveTime returns value given in constructor if not otherwise set
226		*/
227	<	public void testGetKeepAliveTime(){
228	<	ThreadPoolExecutor two = new ThreadPoolExecutor(2, 2, 1, TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10));
229	<	try {
230	<	assertEquals(1, two.getKeepAliveTime(TimeUnit.SECONDS));
231	<	} finally {
232	<	two.shutdown();
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	<
236	>
237		/**
238	<	*  Test to verify getLargestPoolSize gives correct values
238	>	* getThreadFactory returns factory in constructor if not set
239		*/
240	<	public void testGetLargestPoolSize(){
241	<	ThreadPoolExecutor two = new ThreadPoolExecutor(2, 2, 1, TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10));
242	<	try {
243	<	assertEquals(0, two.getLargestPoolSize());
244	<	two.execute(newRunnable());
245	<	two.execute(newRunnable());
246	<	try{Thread.sleep(SHORT_DELAY_MS);} catch(Exception e){}
247	<	assertEquals(2, two.getLargestPoolSize());
248	<	} finally {
249	<	two.shutdown();
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	<
252	>
253		/**
254	<	*  Test to verify getMaximumPoolSize gives correct values
254	>	* setThreadFactory sets the thread factory returned by getThreadFactory
255		*/
256	<	public void testGetMaximumPoolSize(){
257	<	ThreadPoolExecutor two = new ThreadPoolExecutor(2, 2, 1, TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10));
258	<	try {
259	<	assertEquals(2, two.getMaximumPoolSize());
260	<	} finally {
261	<	two.shutdown();
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	<	*  Test to verify getPoolSize gives correct values
269	>	* setThreadFactory(null) throws NPE
270		*/
271	<	public void testGetPoolSize(){
272	<	ThreadPoolExecutor one = new ThreadPoolExecutor(1, 1, 1, TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10));
273	<	try {
274	<	assertEquals(0, one.getPoolSize());
275	<	one.execute(newRunnable());
276	<	assertEquals(1, one.getPoolSize());
277	<	} finally {
278	<	one.shutdown();
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	<	*  Test to verify getTaskCount gives correct values
285	>	* The default rejected execution handler is AbortPolicy.
286		*/
287	<	public void testGetTaskCount(){
288	<	ThreadPoolExecutor one = new ThreadPoolExecutor(1, 1, 1, TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10));
289	<	try {
290	<	assertEquals(0, one.getTaskCount());
291	<	for(int i = 0; i < 5; i++)
292	<	one.execute(newRunnable());
293	<	try{Thread.sleep(SHORT_DELAY_MS);}catch(Exception e){}
178	<	assertEquals(5, one.getTaskCount());
179	<	} finally {
180	<	one.shutdown();
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	<	*  Test to verify isShutDown gives correct values
298	>	* getRejectedExecutionHandler returns handler in constructor if not set
299		*/
300	<	public void testIsShutdown(){
301	<
302	<	ThreadPoolExecutor one = new ThreadPoolExecutor(1, 1, 1, TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10));
303	<	try {
304	<	assertFalse(one.isShutdown());
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	<	finally {
327	<	one.shutdown();
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		}
196	–	assertTrue(one.isShutdown());
342		}
343
199	–
344		/**
345	<	*  Test to verify isTerminated gives correct values
346	<	*  Makes sure termination does not take an innapropriate
203	<	*  amount of time
345	>	* getLargestPoolSize increases, but doesn't overestimate, when
346	>	* multiple threads active
347		*/
348	<	public void testIsTerminated(){
349	<	ThreadPoolExecutor one = new ThreadPoolExecutor(1, 1, 1, TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10));
350	<	try {
351	<	one.execute(newRunnable());
352	<	} finally {
353	<	one.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	<	boolean flag = false;
213	<	try{
214	<	flag = one.awaitTermination(10, TimeUnit.SECONDS);
215	<	}catch(Exception e){}
216	<	assertTrue(one.isTerminated());
217	<	if(!flag)
218	<	fail("ThreadPoolExecutor - thread pool did not terminate within suitable timeframe");
368	>	assertEquals(THREADS, p.getLargestPoolSize());
369		}
370
371		/**
372	<	*  Test to verify that purge correctly removes cancelled tasks
373	<	*  from the queue
372	>	* getMaximumPoolSize returns value given in constructor if not
373	>	* otherwise set
374		*/
375	<	public void testPurge(){
376	<	ThreadPoolExecutor one = new ThreadPoolExecutor(1, 1, 1, TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10));
377	<	try {
378	<	CancellableTask[] tasks = new CancellableTask[5];
379	<	for(int i = 0; i < 5; i++){
380	<	tasks[i] = new CancellableTask(newRunnable());
381	<	one.execute(tasks[i]);
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	<	tasks[4].cancel(true);
445	<	tasks[3].cancel(true);
235	<	one.purge();
236	<	long count = one.getTaskCount();
237	<	assertTrue(count >= 2 && count < 5);
238	<	} finally {
239	<	one.shutdown();
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	<	*  Test to verify shutDownNow returns a list
245	<	*  containing the correct number of elements
452	>	* isShutdown is false before shutdown, true after
453		*/
454	<	public void testShutDownNow(){
455	<	ThreadPoolExecutor one = new ThreadPoolExecutor(1, 1, 1, TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10));
456	<	List l;
457	<	try {
458	<	for(int i = 0; i < 5; i++)
459	<	one.execute(newRunnable());
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	<	finally {
465	<	l = one.shutdownNow();
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		}
257	–	assertTrue(one.isShutdown());
258	–	assertTrue(l.size() <= 4);
496		}
497
498	<
499	<
500	<
501	<
502	<
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[] 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	>	}
586	>	}
587	>
588	>	/**
589	>	* remove(task) removes queued task, and fails to remove active task
590	>	*/
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	>	}
620	>	}
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
267	–
704
705	<	//---- Tests if corePoolSize argument is less than zero
705	>	/**
706	>	* Constructor throws if corePoolSize argument is less than zero
707	>	*/
708		public void testConstructor1() {
709	<	try{
710	<	new ThreadPoolExecutor(-1,1,100L,TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10));
711	<	fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");
712	<	}
713	<	catch (IllegalArgumentException i){}
709	>	try {
710	>	new ThreadPoolExecutor(-1, 1, 1L, SECONDS,
711	>	new ArrayBlockingQueue<Runnable>(10));
712	>	shouldThrow();
713	>	} catch (IllegalArgumentException success) {}
714		}
715	<
716	<	//---- Tests if maximumPoolSize is less than zero
715	>
716	>	/**
717	>	* Constructor throws if maximumPoolSize is less than zero
718	>	*/
719		public void testConstructor2() {
720	<	try{
721	<	new ThreadPoolExecutor(1,-1,100L,TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10));
722	<	fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");
723	<	}
724	<	catch (IllegalArgumentException i2){}
720	>	try {
721	>	new ThreadPoolExecutor(1, -1, 1L, SECONDS,
722	>	new ArrayBlockingQueue<Runnable>(10));
723	>	shouldThrow();
724	>	} catch (IllegalArgumentException success) {}
725		}
726	<
727	<	//---- Tests if maximumPoolSize is equal to zero
726	>
727	>	/**
728	>	* Constructor throws if maximumPoolSize is equal to zero
729	>	*/
730		public void testConstructor3() {
731	<	try{
732	<	new ThreadPoolExecutor(1,0,100L,TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10));
733	<	fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");
734	<	}
735	<	catch (IllegalArgumentException i3){}
731	>	try {
732	>	new ThreadPoolExecutor(1, 0, 1L, SECONDS,
733	>	new ArrayBlockingQueue<Runnable>(10));
734	>	shouldThrow();
735	>	} catch (IllegalArgumentException success) {}
736		}
737
738	<	//---- Tests if keepAliveTime is less than zero
738	>	/**
739	>	* Constructor throws if keepAliveTime is less than zero
740	>	*/
741		public void testConstructor4() {
742	<	try{
743	<	new ThreadPoolExecutor(1,2,-1L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
744	<	fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");
745	<	}
746	<	catch (IllegalArgumentException i4){}
742	>	try {
743	>	new ThreadPoolExecutor(1, 2, -1L, SECONDS,
744	>	new ArrayBlockingQueue<Runnable>(10));
745	>	shouldThrow();
746	>	} catch (IllegalArgumentException success) {}
747		}
748
749	<	//---- Tests if corePoolSize is greater than the maximumPoolSize
749	>	/**
750	>	* Constructor throws if corePoolSize is greater than the maximumPoolSize
751	>	*/
752		public void testConstructor5() {
753	<	try{
754	<	new ThreadPoolExecutor(2,1,100L,TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10));
755	<	fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");
756	<	}
757	<	catch (IllegalArgumentException i5){}
753	>	try {
754	>	new ThreadPoolExecutor(2, 1, 1L, SECONDS,
755	>	new ArrayBlockingQueue<Runnable>(10));
756	>	shouldThrow();
757	>	} catch (IllegalArgumentException success) {}
758		}
759	<
760	<	//---- Tests if workQueue is set to null
761	<	public void testNullPointerException() {
762	<	try{
763	<	new ThreadPoolExecutor(1,2,100L,TimeUnit.MILLISECONDS,null);
764	<	fail("ThreadPoolExecutor constructor should throw a NullPointerException");
765	<	}
766	<	catch (NullPointerException n){}
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		}
322	–
770
771	<
772	<	//---- Tests if corePoolSize argument is less than zero
771	>	/**
772	>	* Constructor throws if corePoolSize argument is less than zero
773	>	*/
774		public void testConstructor6() {
775	<	try{
776	<	new ThreadPoolExecutor(-1,1,100L,TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10),new testThread());
777	<	fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");
778	<	}catch (IllegalArgumentException i6){}
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	<	//---- Tests if maximumPoolSize is less than zero
782	>
783	>	/**
784	>	* Constructor throws if maximumPoolSize is less than zero
785	>	*/
786		public void testConstructor7() {
787	<	try{
788	<	new ThreadPoolExecutor(1,-1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new testThread());
789	<	fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");
790	<	}
791	<	catch (IllegalArgumentException i7){}
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	<	//---- Tests if maximumPoolSize is equal to zero
795	>	/**
796	>	* Constructor throws if maximumPoolSize is equal to zero
797	>	*/
798		public void testConstructor8() {
799	<	try{
800	<	new ThreadPoolExecutor(1,0,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new testThread());
801	<	fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");
802	<	}
803	<	catch (IllegalArgumentException i8){}
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	<	//---- Tests if keepAliveTime is less than zero
807	>	/**
808	>	* Constructor throws if keepAliveTime is less than zero
809	>	*/
810		public void testConstructor9() {
811	<	try{
812	<	new ThreadPoolExecutor(1,2,-1L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new testThread());
813	<	fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");
814	<	}
815	<	catch (IllegalArgumentException i9){}
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	<	//---- Tests if corePoolSize is greater than the maximumPoolSize
819	>	/**
820	>	* Constructor throws if corePoolSize is greater than the maximumPoolSize
821	>	*/
822		public void testConstructor10() {
823	<	try{
824	<	new ThreadPoolExecutor(2,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new testThread());
825	<	fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");
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	>	* Constructor throws if corePoolSize argument is less than zero
941	>	*/
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	>
952	>	/**
953	>	* Constructor throws if maximumPoolSize is less than zero
954	>	*/
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	>
965	>	/**
966	>	* Constructor throws if maximumPoolSize is equal to zero
967	>	*/
968	>	public void testConstructor18() {
969	>	try {
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	>
978	>	/**
979	>	* Constructor throws if keepAliveTime is less than zero
980	>	*/
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	>
991	>	/**
992	>	* Constructor throws if corePoolSize is greater than the maximumPoolSize
993	>	*/
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	>
1004	>	/**
1005	>	* Constructor throws if workQueue is null
1006	>	*/
1007	>	public void testConstructorNullPointerException6() {
1008	>	try {
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	>
1017	>	/**
1018	>	* Constructor throws if handler is null
1019	>	*/
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	>
1030	>	/**
1031	>	* Constructor throws if ThreadFactory is null
1032	>	*/
1033	>	public void testConstructorNullPointerException8() {
1034	>	try {
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		}
366	–	catch (IllegalArgumentException i10){}
1070		}
1071
1072	<	//---- Tests if workQueue is set to null
1073	<	public void testNullPointerException2() {
1074	<	try{
1075	<	new ThreadPoolExecutor(1,2,100L,TimeUnit.MILLISECONDS,null,new testThread());
1076	<	fail("ThreadPoolExecutor constructor should throw a NullPointerException");
1072	>	/**
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 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		}
375	–	catch (NullPointerException n2){}
1177		}
1178
1179	<	//---- Tests if threadFactory is set to null
1180	<	public void testNullPointerException3() {
1181	<	try{
1182	<	ThreadFactory f = null;
1183	<	new ThreadPoolExecutor(1,2,100L,TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10),f);
1184	<	fail("ThreadPoolExecutor constructor should throw a NullPointerException");
1179	>	/**
1180	>	* Submitting null tasks throws NullPointerException
1181	>	*/
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		}
385	–	catch (NullPointerException n3){}
1190		}
1191	<
1192	<
1193	<	//---- Tests if corePoolSize argument is less than zero
1194	<	public void testConstructor11() {
1195	<	try{
1196	<	new ThreadPoolExecutor(-1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new testReject());
1197	<	fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");
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		}
395	–	catch (IllegalArgumentException i11){}
1206		}
1207
1208	<	//---- Tests if maximumPoolSize is less than zero
1209	<	public void testConstructor12() {
1210	<	try{
1211	<	new ThreadPoolExecutor(1,-1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new testReject());
1212	<	fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");
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		}
404	–	catch (IllegalArgumentException i12){}
1223		}
1224
1225	<	//---- Tests if maximumPoolSize is equal to zero
1226	<	public void testConstructor13() {
1227	<	try{
1228	<	new ThreadPoolExecutor(1,0,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new testReject());
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		}
413	–	catch (IllegalArgumentException i13){}
1240		}
1241
1242	<	//---- Tests if keepAliveTime is less than zero
1243	<	public void testConstructor14() {
1244	<	try{
1245	<	new ThreadPoolExecutor(1,2,-1L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new testReject());
1246	<	fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");
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		}
422	–	catch (IllegalArgumentException i14){}
1269		}
1270
1271	<	//---- Tests if corePoolSize is greater than the maximumPoolSize
1272	<	public void testConstructor15() {
1273	<	try{
1274	<	new ThreadPoolExecutor(2,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new testReject());
1275	<	fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");
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	>	}
1286	>	}
1287	>
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		}
431	–	catch (IllegalArgumentException i15){}
1298		}
1299
1300	<	//---- Tests if workQueue is set to null
1301	<	public void testNullPointerException4() {
1302	<	try{
1303	<	new ThreadPoolExecutor(1,2,100L,TimeUnit.MILLISECONDS,null,new testReject());
1304	<	fail("ThreadPoolExecutor constructor should throw a NullPointerException");
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		}
440	–	catch (NullPointerException n4){}
1316		}
1317
1318	<	//---- Tests if handler is set to null
1319	<	public void testNullPointerException5() {
1320	<	try{
1321	<	RejectedExecutionHandler r = null;
1322	<	new ThreadPoolExecutor(1,2,100L,TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10),r);
1323	<	fail("ThreadPoolExecutor constructor should throw a NullPointerException");
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		}
450	–	catch (NullPointerException n5){}
1331		}
1332
1333	<
1334	<	//---- Tests if corePoolSize argument is less than zero
1335	<	public void testConstructor16() {
1336	<	try{
1337	<	new ThreadPoolExecutor(-1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new testThread(),new testReject());
1338	<	fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");
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		}
460	–	catch (IllegalArgumentException i16){}
1346		}
1347
1348	<	//---- Tests if maximumPoolSize is less than zero
1349	<	public void testConstructor17() {
1350	<	try{
1351	<	new ThreadPoolExecutor(1,-1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new testThread(),new testReject());
1352	<	fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");
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		}
469	–	catch (IllegalArgumentException i17){}
1361		}
1362
1363	<	//---- Tests if maximumPoolSize is equal to zero
1364	<	public void testConstructor18() {
1365	<	try{
1366	<	new ThreadPoolExecutor(1,0,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new testThread(),new testReject());
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		}
478	–	catch (IllegalArgumentException i18){}
1377		}
1378
1379	<	//---- Tests if keepAliveTime is less than zero
1380	<	public void testConstructor19() {
1381	<	try{
1382	<	new ThreadPoolExecutor(1,2,-1L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new testThread(),new testReject());
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	>	}
1393	>	}
1394	>
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	>	}
1434	>	}
1435	>
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	>	}
1451	>	}
1452	>
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	>	}
1467	>	}
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	>	}
1483	>	}
1484	>
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	>	}
1502	>	}
1503	>
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	>	}
1524	>	}
1525	>
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	>	}
1543	>	}
1544	>
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	>	}
1577	>	}
1578	>
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	>	}
1594	>	}
1595	>
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	>	}
1615	>	}
1616	>
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	>	}
1637	>	}
1638	>
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	>	}
1656	>	}
1657	>
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	>	}
1672	>	}
1673	>
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	>	}
1690	>	}
1691	>
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	>	}
1895	>	}
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		}
487	–	catch (IllegalArgumentException i19){}
2034		}
2035
490	–	//---- Tests if corePoolSize is greater than the maximumPoolSize
491	–	public void testConstructor20() {
492	–	try{
493	–	new ThreadPoolExecutor(2,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new testThread(),new testReject());
494	–	fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");
495	–	}
496	–	catch (IllegalArgumentException i20){}
497	–	}
498	–
499	–	//---- Tests if workQueue is set to null
500	–	public void testNullPointerException6() {
501	–	try{
502	–	new ThreadPoolExecutor(1,2,100L,TimeUnit.MILLISECONDS,null,new testThread(),new testReject());
503	–	fail("ThreadPoolExecutor constructor should throw a NullPointerException");
504	–	}
505	–	catch (NullPointerException n6){}
506	–	}
507	–
508	–	//---- Tests if handler is set to null
509	–	public void testNullPointerException7() {
510	–	try{
511	–	RejectedExecutionHandler r = null;
512	–	new ThreadPoolExecutor(1,2,100L,TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10),new testThread(),r);
513	–	fail("ThreadPoolExecutor constructor should throw a NullPointerException");
514	–	}
515	–	catch (NullPointerException n7){}
516	–	}
517	–
518	–	//---- Tests if ThradFactory is set top null
519	–	public void testNullPointerException8() {
520	–	try{
521	–	ThreadFactory f = null;
522	–	new ThreadPoolExecutor(1,2,100L,TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10),f,new testReject());
523	–	fail("ThreadPoolExecutor constructor should throw a NullPointerException");
524	–	}
525	–	catch (NullPointerException n8){}
526	–	}
527	–
528	–
529	–	/**
530	–	*  Test to verify execute will throw RejectedExcutionException
531	–	*  ThreadPoolExecutor will throw one when more runnables are
532	–	*  executed then will fit in the Queue.
533	–	*/
534	–	public void testRejectedExecutedException(){
535	–	ThreadPoolExecutor tpe = null;
536	–	try{
537	–	tpe = new ThreadPoolExecutor(1,1,100,TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(1));
538	–	}catch(Exception e){}
539	–	tpe.shutdown();
540	–	try{
541	–	tpe.execute(new Runnable(){
542	–	public void run(){
543	–	try{
544	–	Thread.sleep(1000);
545	–	}catch(InterruptedException e){}
546	–	}
547	–	});
548	–	fail("ThreadPoolExecutor - void execute(Runnable) should throw RejectedExecutionException");
549	–	}catch(RejectedExecutionException sucess){}
550	–
551	–
552	–	}
553	–
554	–	/**
555	–	*  Test to verify setCorePoolSize will throw IllegalArgumentException
556	–	*  when given a negative
557	–	*/
558	–	public void testIllegalArgumentException1(){
559	–	ThreadPoolExecutor tpe = null;
560	–	try{
561	–	tpe = new ThreadPoolExecutor(1,2,100,TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10));
562	–	}catch(Exception e){}
563	–	try{
564	–	tpe.setCorePoolSize(-1);
565	–	fail("ThreadPoolExecutor - void setCorePoolSize(int) should throw IllegalArgumentException");
566	–	}catch(IllegalArgumentException sucess){
567	–	} finally {
568	–	tpe.shutdown();
569	–	}
570	–	}
571	–
572	–
573	–	/**
574	–	*  Test to verify setMaximumPoolSize(int) will throw IllegalArgumentException
575	–	*  if given a value less the it's actual core pool size
576	–	*/
577	–	public void testIllegalArgumentException2(){
578	–	ThreadPoolExecutor tpe = null;
579	–	try{
580	–	tpe = new ThreadPoolExecutor(2,3,100,TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10));
581	–	}catch(Exception e){}
582	–	try{
583	–	tpe.setMaximumPoolSize(1);
584	–	fail("ThreadPoolExecutor - void setMaximumPoolSize(int) should throw IllegalArgumentException");
585	–	}catch(IllegalArgumentException sucess){
586	–	} finally {
587	–	tpe.shutdown();
588	–	}
589	–	}
590	–
591	–	/**
592	–	*  Test to verify that setMaximumPoolSize will throw IllegalArgumentException
593	–	*  if given a negative number
594	–	*/
595	–	public void testIllegalArgumentException2SP(){
596	–	ThreadPoolExecutor tpe = null;
597	–	try{
598	–	tpe = new ThreadPoolExecutor(2,3,100,TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10));
599	–	}catch(Exception e){}
600	–	try{
601	–	tpe.setMaximumPoolSize(-1);
602	–	fail("ThreadPoolExecutor - void setMaximumPoolSize(int) should throw IllegalArgumentException");
603	–	}catch(IllegalArgumentException sucess){
604	–	} finally {
605	–	tpe.shutdown();
606	–	}
607	–	}
608	–
609	–
610	–	/**
611	–	*  Test to verify setKeepAliveTime will throw IllegalArgumentException
612	–	*  when given a negative value
613	–	*/
614	–	public void testIllegalArgumentException3(){
615	–	ThreadPoolExecutor tpe = null;
616	–	try{
617	–	tpe = new ThreadPoolExecutor(2,3,100,TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10));
618	–	}catch(Exception e){}
619	–
620	–	try{
621	–	tpe.setKeepAliveTime(-1,TimeUnit.MILLISECONDS);
622	–	fail("ThreadPoolExecutor - void setKeepAliveTime(long, TimeUnit) should throw IllegalArgumentException");
623	–	}catch(IllegalArgumentException sucess){
624	–	} finally {
625	–	tpe.shutdown();
626	–	}
627	–	}
628	–
629	–
630	–
2036		}

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