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Comparing jsr166/src/test/tck/ThreadPoolExecutorTest.java (file contents):
Revision 1.1 by dl, Sun Aug 31 19:24:56 2003 UTC vs.
Revision 1.101 by jsr166, Mon Oct 5 21:54:33 2015 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.List;
15 + import java.util.concurrent.ArrayBlockingQueue;
16 + import java.util.concurrent.BlockingQueue;
17 + import java.util.concurrent.Callable;
18 + import java.util.concurrent.CancellationException;
19 + import java.util.concurrent.CountDownLatch;
20 + import java.util.concurrent.ExecutionException;
21 + import java.util.concurrent.Executors;
22 + import java.util.concurrent.ExecutorService;
23 + import java.util.concurrent.Future;
24 + import java.util.concurrent.FutureTask;
25 + import java.util.concurrent.LinkedBlockingQueue;
26 + import java.util.concurrent.RejectedExecutionException;
27 + import java.util.concurrent.RejectedExecutionHandler;
28 + import java.util.concurrent.SynchronousQueue;
29 + import java.util.concurrent.ThreadFactory;
30 + import java.util.concurrent.ThreadPoolExecutor;
31 + import java.util.concurrent.TimeUnit;
32 + import java.util.concurrent.atomic.AtomicInteger;
33 +
34 + import junit.framework.Test;
35 + import junit.framework.TestSuite;
36  
37 < public class ThreadPoolExecutorTest extends TestCase{
37 > public class ThreadPoolExecutorTest extends JSR166TestCase {
38      public static void main(String[] args) {
39 <        junit.textui.TestRunner.run (suite());  
39 >        main(suite(), args);
40      }
16
17
41      public static Test suite() {
42          return new TestSuite(ThreadPoolExecutorTest.class);
43      }
44 <    
45 <    private static long SHORT_DELAY_MS = 100;
46 <    private static long MEDIUM_DELAY_MS = 1000;
47 <    private static long LONG_DELAY_MS = 10000;
48 <
49 < //---- testThread class to implement ThreadFactory for use in constructors
50 <    static class testThread implements ThreadFactory{
51 <        public Thread newThread(Runnable r){
44 >
45 >    static class ExtendedTPE extends ThreadPoolExecutor {
46 >        final CountDownLatch beforeCalled = new CountDownLatch(1);
47 >        final CountDownLatch afterCalled = new CountDownLatch(1);
48 >        final CountDownLatch terminatedCalled = new CountDownLatch(1);
49 >
50 >        public ExtendedTPE() {
51 >            super(1, 1, LONG_DELAY_MS, MILLISECONDS, new SynchronousQueue<Runnable>());
52 >        }
53 >        protected void beforeExecute(Thread t, Runnable r) {
54 >            beforeCalled.countDown();
55 >        }
56 >        protected void afterExecute(Runnable r, Throwable t) {
57 >            afterCalled.countDown();
58 >        }
59 >        protected void terminated() {
60 >            terminatedCalled.countDown();
61 >        }
62 >
63 >        public boolean beforeCalled() {
64 >            return beforeCalled.getCount() == 0;
65 >        }
66 >        public boolean afterCalled() {
67 >            return afterCalled.getCount() == 0;
68 >        }
69 >        public boolean terminatedCalled() {
70 >            return terminatedCalled.getCount() == 0;
71 >        }
72 >    }
73 >
74 >    static class FailingThreadFactory implements ThreadFactory {
75 >        int calls = 0;
76 >        public Thread newThread(Runnable r) {
77 >            if (++calls > 1) return null;
78              return new Thread(r);
79 <        }  
79 >        }
80      }
81  
82 < //---- testReject class to implement RejectedExecutionHandler for use in the constructors
83 <    static class testReject implements RejectedExecutionHandler{
84 <        public void rejectedExecution(Runnable r, ThreadPoolExecutor executor){}
82 >    /**
83 >     * execute successfully executes a runnable
84 >     */
85 >    public void testExecute() throws InterruptedException {
86 >        final ThreadPoolExecutor p =
87 >            new ThreadPoolExecutor(1, 1,
88 >                                   LONG_DELAY_MS, MILLISECONDS,
89 >                                   new ArrayBlockingQueue<Runnable>(10));
90 >        try (PoolCleaner cleaner = cleaner(p)) {
91 >            final CountDownLatch done = new CountDownLatch(1);
92 >            final Runnable task = new CheckedRunnable() {
93 >                public void realRun() { done.countDown(); }};
94 >            p.execute(task);
95 >            assertTrue(done.await(LONG_DELAY_MS, MILLISECONDS));
96 >        }
97      }
98  
99 <    public Runnable newRunnable(){
100 <        return new Runnable(){
101 <                public void run(){
102 <                    try{Thread.sleep(MEDIUM_DELAY_MS);
103 <                    } catch(Exception e){
104 <                    }
105 <                }
106 <            };
99 >    /**
100 >     * getActiveCount increases but doesn't overestimate, when a
101 >     * thread becomes active
102 >     */
103 >    public void testGetActiveCount() throws InterruptedException {
104 >        final ThreadPoolExecutor p =
105 >            new ThreadPoolExecutor(2, 2,
106 >                                   LONG_DELAY_MS, MILLISECONDS,
107 >                                   new ArrayBlockingQueue<Runnable>(10));
108 >        try (PoolCleaner cleaner = cleaner(p)) {
109 >            final CountDownLatch threadStarted = new CountDownLatch(1);
110 >            final CountDownLatch done = new CountDownLatch(1);
111 >            assertEquals(0, p.getActiveCount());
112 >            p.execute(new CheckedRunnable() {
113 >                public void realRun() throws InterruptedException {
114 >                    threadStarted.countDown();
115 >                    assertEquals(1, p.getActiveCount());
116 >                    done.await();
117 >                }});
118 >            assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
119 >            assertEquals(1, p.getActiveCount());
120 >            done.countDown();
121 >        }
122      }
123  
48
124      /**
125 <     *  Test to verify that execute successfully executes a runnable
125 >     * prestartCoreThread starts a thread if under corePoolSize, else doesn't
126       */
127 <    public void testExecute(){
128 <        ThreadPoolExecutor one = new ThreadPoolExecutor(1, 1, 1, TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10));
129 <        try {
130 <            one.execute(new Runnable(){
131 <                    public void run(){
132 <                        try{
133 <                            Thread.sleep(SHORT_DELAY_MS);
134 <                        }catch(InterruptedException e){
135 <                            fail("unexpected exception");
136 <                        }
137 <                    }
138 <                });
139 <            Thread.sleep(SHORT_DELAY_MS * 2);
140 <        }catch(InterruptedException e){
141 <            fail("unexpected exception");
142 <        } finally {
143 <            one.shutdown();
127 >    public void testPrestartCoreThread() {
128 >        final ThreadPoolExecutor p =
129 >            new ThreadPoolExecutor(2, 6,
130 >                                   LONG_DELAY_MS, MILLISECONDS,
131 >                                   new ArrayBlockingQueue<Runnable>(10));
132 >        try (PoolCleaner cleaner = cleaner(p)) {
133 >            assertEquals(0, p.getPoolSize());
134 >            assertTrue(p.prestartCoreThread());
135 >            assertEquals(1, p.getPoolSize());
136 >            assertTrue(p.prestartCoreThread());
137 >            assertEquals(2, p.getPoolSize());
138 >            assertFalse(p.prestartCoreThread());
139 >            assertEquals(2, p.getPoolSize());
140 >            p.setCorePoolSize(4);
141 >            assertTrue(p.prestartCoreThread());
142 >            assertEquals(3, p.getPoolSize());
143 >            assertTrue(p.prestartCoreThread());
144 >            assertEquals(4, p.getPoolSize());
145 >            assertFalse(p.prestartCoreThread());
146 >            assertEquals(4, p.getPoolSize());
147          }
148      }
149  
150      /**
151 <     *  Test to verify getActiveCount gives correct values
151 >     * prestartAllCoreThreads starts all corePoolSize threads
152       */
153 <    public void testGetActiveCount(){
154 <        ThreadPoolExecutor two = new ThreadPoolExecutor(2, 2, 1, TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10));
155 <        try {
156 <            assertEquals(0, two.getActiveCount());
157 <            two.execute(newRunnable());
158 <            try{Thread.sleep(10);}catch(Exception e){}
159 <            assertEquals(1, two.getActiveCount());
160 <        } finally {
161 <            two.shutdown();
153 >    public void testPrestartAllCoreThreads() {
154 >        final ThreadPoolExecutor p =
155 >            new ThreadPoolExecutor(2, 6,
156 >                                   LONG_DELAY_MS, MILLISECONDS,
157 >                                   new ArrayBlockingQueue<Runnable>(10));
158 >        try (PoolCleaner cleaner = cleaner(p)) {
159 >            assertEquals(0, p.getPoolSize());
160 >            p.prestartAllCoreThreads();
161 >            assertEquals(2, p.getPoolSize());
162 >            p.prestartAllCoreThreads();
163 >            assertEquals(2, p.getPoolSize());
164 >            p.setCorePoolSize(4);
165 >            p.prestartAllCoreThreads();
166 >            assertEquals(4, p.getPoolSize());
167 >            p.prestartAllCoreThreads();
168 >            assertEquals(4, p.getPoolSize());
169          }
170      }
171 <    
171 >
172      /**
173 <     *  Test to verify getCompleteTaskCount gives correct values
173 >     * getCompletedTaskCount increases, but doesn't overestimate,
174 >     * when tasks complete
175       */
176 <    public void testGetCompletedTaskCount(){
177 <        ThreadPoolExecutor two = new ThreadPoolExecutor(2, 2, 1, TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10));
178 <        try {
179 <            assertEquals(0, two.getCompletedTaskCount());
180 <            two.execute(newRunnable());
181 <            try{Thread.sleep(2000);}catch(Exception e){}
182 <            assertEquals(1, two.getCompletedTaskCount());
183 <        } finally {
184 <            two.shutdown();
176 >    public void testGetCompletedTaskCount() throws InterruptedException {
177 >        final ThreadPoolExecutor p =
178 >            new ThreadPoolExecutor(2, 2,
179 >                                   LONG_DELAY_MS, MILLISECONDS,
180 >                                   new ArrayBlockingQueue<Runnable>(10));
181 >        try (PoolCleaner cleaner = cleaner(p)) {
182 >            final CountDownLatch threadStarted = new CountDownLatch(1);
183 >            final CountDownLatch threadProceed = new CountDownLatch(1);
184 >            final CountDownLatch threadDone = new CountDownLatch(1);
185 >            assertEquals(0, p.getCompletedTaskCount());
186 >            p.execute(new CheckedRunnable() {
187 >                public void realRun() throws InterruptedException {
188 >                    threadStarted.countDown();
189 >                    assertEquals(0, p.getCompletedTaskCount());
190 >                    threadProceed.await();
191 >                    threadDone.countDown();
192 >                }});
193 >            await(threadStarted);
194 >            assertEquals(0, p.getCompletedTaskCount());
195 >            threadProceed.countDown();
196 >            threadDone.await();
197 >            long startTime = System.nanoTime();
198 >            while (p.getCompletedTaskCount() != 1) {
199 >                if (millisElapsedSince(startTime) > LONG_DELAY_MS)
200 >                    fail("timed out");
201 >                Thread.yield();
202 >            }
203          }
204      }
205 <    
205 >
206      /**
207 <     *  Test to verify getCorePoolSize gives correct values
207 >     * getCorePoolSize returns size given in constructor if not otherwise set
208       */
209 <    public void testGetCorePoolSize(){
210 <        ThreadPoolExecutor one = new ThreadPoolExecutor(1, 1, 1, TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10));
211 <        try {
212 <            assertEquals(1, one.getCorePoolSize());
213 <        } finally {
214 <            one.shutdown();
209 >    public void testGetCorePoolSize() {
210 >        final ThreadPoolExecutor p =
211 >            new ThreadPoolExecutor(1, 1,
212 >                                   LONG_DELAY_MS, MILLISECONDS,
213 >                                   new ArrayBlockingQueue<Runnable>(10));
214 >        try (PoolCleaner cleaner = cleaner(p)) {
215 >            assertEquals(1, p.getCorePoolSize());
216          }
217      }
218 <    
218 >
219      /**
220 <     *  Test to verify getKeepAliveTime gives correct values
220 >     * getKeepAliveTime returns value given in constructor if not otherwise set
221       */
222 <    public void testGetKeepAliveTime(){
223 <        ThreadPoolExecutor two = new ThreadPoolExecutor(2, 2, 1, TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10));
224 <        try {
225 <            assertEquals(1, two.getKeepAliveTime(TimeUnit.SECONDS));
226 <        } finally {
227 <            two.shutdown();
222 >    public void testGetKeepAliveTime() {
223 >        final ThreadPoolExecutor p =
224 >            new ThreadPoolExecutor(2, 2,
225 >                                   1000, MILLISECONDS,
226 >                                   new ArrayBlockingQueue<Runnable>(10));
227 >        try (PoolCleaner cleaner = cleaner(p)) {
228 >            assertEquals(1, p.getKeepAliveTime(SECONDS));
229          }
230      }
231 <    
231 >
232      /**
233 <     *  Test to verify getLargestPoolSize gives correct values
233 >     * getThreadFactory returns factory in constructor if not set
234       */
235 <    public void testGetLargestPoolSize(){
236 <        ThreadPoolExecutor two = new ThreadPoolExecutor(2, 2, 1, TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10));
237 <        try {
238 <            assertEquals(0, two.getLargestPoolSize());
239 <            two.execute(newRunnable());
240 <            two.execute(newRunnable());
241 <            try{Thread.sleep(SHORT_DELAY_MS);} catch(Exception e){}
242 <            assertEquals(2, two.getLargestPoolSize());
243 <        } finally {
244 <            two.shutdown();
235 >    public void testGetThreadFactory() {
236 >        ThreadFactory threadFactory = new SimpleThreadFactory();
237 >        final ThreadPoolExecutor p =
238 >            new ThreadPoolExecutor(1, 2,
239 >                                   LONG_DELAY_MS, MILLISECONDS,
240 >                                   new ArrayBlockingQueue<Runnable>(10),
241 >                                   threadFactory,
242 >                                   new NoOpREHandler());
243 >        try (PoolCleaner cleaner = cleaner(p)) {
244 >            assertSame(threadFactory, p.getThreadFactory());
245          }
246      }
247 <    
247 >
248      /**
249 <     *  Test to verify getMaximumPoolSize gives correct values
249 >     * setThreadFactory sets the thread factory returned by getThreadFactory
250       */
251 <    public void testGetMaximumPoolSize(){
252 <        ThreadPoolExecutor two = new ThreadPoolExecutor(2, 2, 1, TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10));
253 <        try {
254 <            assertEquals(2, two.getMaximumPoolSize());
255 <        } finally {
256 <            two.shutdown();
251 >    public void testSetThreadFactory() {
252 >        final ThreadPoolExecutor p =
253 >            new ThreadPoolExecutor(1, 2,
254 >                                   LONG_DELAY_MS, MILLISECONDS,
255 >                                   new ArrayBlockingQueue<Runnable>(10));
256 >        try (PoolCleaner cleaner = cleaner(p)) {
257 >            ThreadFactory threadFactory = new SimpleThreadFactory();
258 >            p.setThreadFactory(threadFactory);
259 >            assertSame(threadFactory, p.getThreadFactory());
260          }
261      }
262 <    
262 >
263      /**
264 <     *  Test to verify getPoolSize gives correct values
264 >     * setThreadFactory(null) throws NPE
265       */
266 <    public void testGetPoolSize(){
267 <        ThreadPoolExecutor one = new ThreadPoolExecutor(1, 1, 1, TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10));
268 <        try {
269 <            assertEquals(0, one.getPoolSize());
270 <            one.execute(newRunnable());
271 <            assertEquals(1, one.getPoolSize());
272 <        } finally {
273 <            one.shutdown();
266 >    public void testSetThreadFactoryNull() {
267 >        final ThreadPoolExecutor p =
268 >            new ThreadPoolExecutor(1, 2,
269 >                                   LONG_DELAY_MS, MILLISECONDS,
270 >                                   new ArrayBlockingQueue<Runnable>(10));
271 >        try (PoolCleaner cleaner = cleaner(p)) {
272 >            try {
273 >                p.setThreadFactory(null);
274 >                shouldThrow();
275 >            } catch (NullPointerException success) {}
276          }
277      }
278 <    
278 >
279      /**
280 <     *  Test to verify getTaskCount gives correct values
280 >     * getRejectedExecutionHandler returns handler in constructor if not set
281       */
282 <    public void testGetTaskCount(){
283 <        ThreadPoolExecutor one = new ThreadPoolExecutor(1, 1, 1, TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10));
284 <        try {
285 <            assertEquals(0, one.getTaskCount());
286 <            for(int i = 0; i < 5; i++)
287 <                one.execute(newRunnable());
288 <            try{Thread.sleep(SHORT_DELAY_MS);}catch(Exception e){}
289 <            assertEquals(5, one.getTaskCount());
290 <        } finally {
180 <            one.shutdown();
282 >    public void testGetRejectedExecutionHandler() {
283 >        final RejectedExecutionHandler handler = new NoOpREHandler();
284 >        final ThreadPoolExecutor p =
285 >            new ThreadPoolExecutor(1, 2,
286 >                                   LONG_DELAY_MS, MILLISECONDS,
287 >                                   new ArrayBlockingQueue<Runnable>(10),
288 >                                   handler);
289 >        try (PoolCleaner cleaner = cleaner(p)) {
290 >            assertSame(handler, p.getRejectedExecutionHandler());
291          }
292      }
293 <    
293 >
294      /**
295 <     *  Test to verify isShutDown gives correct values
295 >     * setRejectedExecutionHandler sets the handler returned by
296 >     * getRejectedExecutionHandler
297       */
298 <    public void testIsShutdown(){
299 <        
300 <        ThreadPoolExecutor one = new ThreadPoolExecutor(1, 1, 1, TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10));
301 <        try {
302 <            assertFalse(one.isShutdown());
298 >    public void testSetRejectedExecutionHandler() {
299 >        final ThreadPoolExecutor p =
300 >            new ThreadPoolExecutor(1, 2,
301 >                                   LONG_DELAY_MS, MILLISECONDS,
302 >                                   new ArrayBlockingQueue<Runnable>(10));
303 >        try (PoolCleaner cleaner = cleaner(p)) {
304 >            RejectedExecutionHandler handler = new NoOpREHandler();
305 >            p.setRejectedExecutionHandler(handler);
306 >            assertSame(handler, p.getRejectedExecutionHandler());
307 >        }
308 >    }
309 >
310 >    /**
311 >     * setRejectedExecutionHandler(null) throws NPE
312 >     */
313 >    public void testSetRejectedExecutionHandlerNull() {
314 >        final ThreadPoolExecutor p =
315 >            new ThreadPoolExecutor(1, 2,
316 >                                   LONG_DELAY_MS, MILLISECONDS,
317 >                                   new ArrayBlockingQueue<Runnable>(10));
318 >        try (PoolCleaner cleaner = cleaner(p)) {
319 >            try {
320 >                p.setRejectedExecutionHandler(null);
321 >                shouldThrow();
322 >            } catch (NullPointerException success) {}
323          }
324 <        finally {
325 <            one.shutdown();
324 >    }
325 >
326 >    /**
327 >     * getLargestPoolSize increases, but doesn't overestimate, when
328 >     * multiple threads active
329 >     */
330 >    public void testGetLargestPoolSize() throws InterruptedException {
331 >        final int THREADS = 3;
332 >        final ThreadPoolExecutor p =
333 >            new ThreadPoolExecutor(THREADS, THREADS,
334 >                                   LONG_DELAY_MS, MILLISECONDS,
335 >                                   new ArrayBlockingQueue<Runnable>(10));
336 >        try (PoolCleaner cleaner = cleaner(p)) {
337 >            final CountDownLatch threadsStarted = new CountDownLatch(THREADS);
338 >            final CountDownLatch done = new CountDownLatch(1);
339 >            assertEquals(0, p.getLargestPoolSize());
340 >            for (int i = 0; i < THREADS; i++)
341 >                p.execute(new CheckedRunnable() {
342 >                    public void realRun() throws InterruptedException {
343 >                        threadsStarted.countDown();
344 >                        done.await();
345 >                        assertEquals(THREADS, p.getLargestPoolSize());
346 >                    }});
347 >            assertTrue(threadsStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
348 >            assertEquals(THREADS, p.getLargestPoolSize());
349 >            done.countDown();   // release pool
350          }
351 <        assertTrue(one.isShutdown());
351 >        assertEquals(THREADS, p.getLargestPoolSize());
352      }
353  
199        
354      /**
355 <     *  Test to verify isTerminated gives correct values
356 <     *  Makes sure termination does not take an innapropriate
203 <     *  amount of time
355 >     * getMaximumPoolSize returns value given in constructor if not
356 >     * otherwise set
357       */
358 <    public void testIsTerminated(){
359 <        ThreadPoolExecutor one = new ThreadPoolExecutor(1, 1, 1, TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10));
360 <        try {
361 <            one.execute(newRunnable());
362 <        } finally {
363 <            one.shutdown();
358 >    public void testGetMaximumPoolSize() {
359 >        final ThreadPoolExecutor p =
360 >            new ThreadPoolExecutor(2, 3,
361 >                                   LONG_DELAY_MS, MILLISECONDS,
362 >                                   new ArrayBlockingQueue<Runnable>(10));
363 >        try (PoolCleaner cleaner = cleaner(p)) {
364 >            assertEquals(3, p.getMaximumPoolSize());
365 >            p.setMaximumPoolSize(5);
366 >            assertEquals(5, p.getMaximumPoolSize());
367 >            p.setMaximumPoolSize(4);
368 >            assertEquals(4, p.getMaximumPoolSize());
369          }
212        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");
370      }
371  
372      /**
373 <     *  Test to verify that purge correctly removes cancelled tasks
374 <     *  from the queue
373 >     * getPoolSize increases, but doesn't overestimate, when threads
374 >     * become active
375       */
376 <    public void testPurge(){
377 <        ThreadPoolExecutor one = new ThreadPoolExecutor(1, 1, 1, TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10));
378 <        try {
379 <            CancellableTask[] tasks = new CancellableTask[5];
380 <            for(int i = 0; i < 5; i++){
381 <                tasks[i] = new CancellableTask(newRunnable());
382 <                one.execute(tasks[i]);
376 >    public void testGetPoolSize() throws InterruptedException {
377 >        final ThreadPoolExecutor p =
378 >            new ThreadPoolExecutor(1, 1,
379 >                                   LONG_DELAY_MS, MILLISECONDS,
380 >                                   new ArrayBlockingQueue<Runnable>(10));
381 >        try (PoolCleaner cleaner = cleaner(p)) {
382 >            final CountDownLatch threadStarted = new CountDownLatch(1);
383 >            final CountDownLatch done = new CountDownLatch(1);
384 >            assertEquals(0, p.getPoolSize());
385 >            p.execute(new CheckedRunnable() {
386 >                public void realRun() throws InterruptedException {
387 >                    threadStarted.countDown();
388 >                    assertEquals(1, p.getPoolSize());
389 >                    done.await();
390 >                }});
391 >            assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
392 >            assertEquals(1, p.getPoolSize());
393 >            done.countDown();   // release pool
394 >        }
395 >    }
396 >
397 >    /**
398 >     * getTaskCount increases, but doesn't overestimate, when tasks submitted
399 >     */
400 >    public void testGetTaskCount() throws InterruptedException {
401 >        final int TASKS = 3;
402 >        final CountDownLatch done = new CountDownLatch(1);
403 >        final ThreadPoolExecutor p =
404 >            new ThreadPoolExecutor(1, 1,
405 >                                   LONG_DELAY_MS, MILLISECONDS,
406 >                                   new ArrayBlockingQueue<Runnable>(10));
407 >        try (PoolCleaner cleaner = cleaner(p, done)) {
408 >            final CountDownLatch threadStarted = new CountDownLatch(1);
409 >            assertEquals(0, p.getTaskCount());
410 >            assertEquals(0, p.getCompletedTaskCount());
411 >            p.execute(new CheckedRunnable() {
412 >                public void realRun() throws InterruptedException {
413 >                    threadStarted.countDown();
414 >                    done.await();
415 >                }});
416 >            assertTrue(threadStarted.await(LONG_DELAY_MS, MILLISECONDS));
417 >            assertEquals(1, p.getTaskCount());
418 >            assertEquals(0, p.getCompletedTaskCount());
419 >            for (int i = 0; i < TASKS; i++) {
420 >                assertEquals(1 + i, p.getTaskCount());
421 >                p.execute(new CheckedRunnable() {
422 >                    public void realRun() throws InterruptedException {
423 >                        threadStarted.countDown();
424 >                        assertEquals(1 + TASKS, p.getTaskCount());
425 >                        done.await();
426 >                    }});
427              }
428 <            tasks[4].cancel(true);
429 <            tasks[3].cancel(true);
235 <            one.purge();
236 <            long count = one.getTaskCount();
237 <            assertTrue(count >= 2 && count < 5);
238 <        } finally {
239 <            one.shutdown();
428 >            assertEquals(1 + TASKS, p.getTaskCount());
429 >            assertEquals(0, p.getCompletedTaskCount());
430          }
431 +        assertEquals(1 + TASKS, p.getTaskCount());
432 +        assertEquals(1 + TASKS, p.getCompletedTaskCount());
433      }
434  
435      /**
436 <     *  Test to verify shutDownNow returns a list
245 <     *  containing the correct number of elements
436 >     * isShutdown is false before shutdown, true after
437       */
438 <    public void testShutDownNow(){
439 <        ThreadPoolExecutor one = new ThreadPoolExecutor(1, 1, 1, TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10));
440 <        List l;
441 <        try {
442 <            for(int i = 0; i < 5; i++)
443 <                one.execute(newRunnable());
438 >    public void testIsShutdown() {
439 >        final ThreadPoolExecutor p =
440 >            new ThreadPoolExecutor(1, 1,
441 >                                   LONG_DELAY_MS, MILLISECONDS,
442 >                                   new ArrayBlockingQueue<Runnable>(10));
443 >        try (PoolCleaner cleaner = cleaner(p)) {
444 >            assertFalse(p.isShutdown());
445 >            try { p.shutdown(); } catch (SecurityException ok) { return; }
446 >            assertTrue(p.isShutdown());
447 >        }
448 >    }
449 >
450 >    /**
451 >     * awaitTermination on a non-shutdown pool times out
452 >     */
453 >    public void testAwaitTermination_timesOut() throws InterruptedException {
454 >        final ThreadPoolExecutor p =
455 >            new ThreadPoolExecutor(1, 1,
456 >                                   LONG_DELAY_MS, MILLISECONDS,
457 >                                   new ArrayBlockingQueue<Runnable>(10));
458 >        try (PoolCleaner cleaner = cleaner(p)) {
459 >            assertFalse(p.isTerminated());
460 >            assertFalse(p.awaitTermination(Long.MIN_VALUE, NANOSECONDS));
461 >            assertFalse(p.awaitTermination(Long.MIN_VALUE, MILLISECONDS));
462 >            assertFalse(p.awaitTermination(-1L, NANOSECONDS));
463 >            assertFalse(p.awaitTermination(-1L, MILLISECONDS));
464 >            assertFalse(p.awaitTermination(0L, NANOSECONDS));
465 >            assertFalse(p.awaitTermination(0L, MILLISECONDS));
466 >            long timeoutNanos = 999999L;
467 >            long startTime = System.nanoTime();
468 >            assertFalse(p.awaitTermination(timeoutNanos, NANOSECONDS));
469 >            assertTrue(System.nanoTime() - startTime >= timeoutNanos);
470 >            assertFalse(p.isTerminated());
471 >            startTime = System.nanoTime();
472 >            long timeoutMillis = timeoutMillis();
473 >            assertFalse(p.awaitTermination(timeoutMillis, MILLISECONDS));
474 >            assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
475 >            assertFalse(p.isTerminated());
476 >            try { p.shutdown(); } catch (SecurityException ok) { return; }
477 >            assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
478 >            assertTrue(p.isTerminated());
479 >        }
480 >    }
481 >
482 >    /**
483 >     * isTerminated is false before termination, true after
484 >     */
485 >    public void testIsTerminated() throws InterruptedException {
486 >        final ThreadPoolExecutor p =
487 >            new ThreadPoolExecutor(1, 1,
488 >                                   LONG_DELAY_MS, MILLISECONDS,
489 >                                   new ArrayBlockingQueue<Runnable>(10));
490 >        try (PoolCleaner cleaner = cleaner(p)) {
491 >            final CountDownLatch threadStarted = new CountDownLatch(1);
492 >            final CountDownLatch done = new CountDownLatch(1);
493 >            assertFalse(p.isTerminating());
494 >            p.execute(new CheckedRunnable() {
495 >                public void realRun() throws InterruptedException {
496 >                    assertFalse(p.isTerminating());
497 >                    threadStarted.countDown();
498 >                    done.await();
499 >                }});
500 >            assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
501 >            assertFalse(p.isTerminating());
502 >            done.countDown();
503 >            try { p.shutdown(); } catch (SecurityException ok) { return; }
504 >            assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
505 >            assertTrue(p.isTerminated());
506 >            assertFalse(p.isTerminating());
507 >        }
508 >    }
509 >
510 >    /**
511 >     * isTerminating is not true when running or when terminated
512 >     */
513 >    public void testIsTerminating() throws InterruptedException {
514 >        final ThreadPoolExecutor p =
515 >            new ThreadPoolExecutor(1, 1,
516 >                                   LONG_DELAY_MS, MILLISECONDS,
517 >                                   new ArrayBlockingQueue<Runnable>(10));
518 >        try (PoolCleaner cleaner = cleaner(p)) {
519 >            final CountDownLatch threadStarted = new CountDownLatch(1);
520 >            final CountDownLatch done = new CountDownLatch(1);
521 >            assertFalse(p.isTerminating());
522 >            p.execute(new CheckedRunnable() {
523 >                public void realRun() throws InterruptedException {
524 >                    assertFalse(p.isTerminating());
525 >                    threadStarted.countDown();
526 >                    done.await();
527 >                }});
528 >            assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
529 >            assertFalse(p.isTerminating());
530 >            done.countDown();
531 >            try { p.shutdown(); } catch (SecurityException ok) { return; }
532 >            assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
533 >            assertTrue(p.isTerminated());
534 >            assertFalse(p.isTerminating());
535 >        }
536 >    }
537 >
538 >    /**
539 >     * getQueue returns the work queue, which contains queued tasks
540 >     */
541 >    public void testGetQueue() throws InterruptedException {
542 >        final BlockingQueue<Runnable> q = new ArrayBlockingQueue<Runnable>(10);
543 >        final ThreadPoolExecutor p =
544 >            new ThreadPoolExecutor(1, 1,
545 >                                   LONG_DELAY_MS, MILLISECONDS,
546 >                                   q);
547 >        try (PoolCleaner cleaner = cleaner(p)) {
548 >            final CountDownLatch threadStarted = new CountDownLatch(1);
549 >            final CountDownLatch done = new CountDownLatch(1);
550 >            FutureTask[] tasks = new FutureTask[5];
551 >            for (int i = 0; i < tasks.length; i++) {
552 >                Callable task = new CheckedCallable<Boolean>() {
553 >                    public Boolean realCall() throws InterruptedException {
554 >                        threadStarted.countDown();
555 >                        assertSame(q, p.getQueue());
556 >                        done.await();
557 >                        return Boolean.TRUE;
558 >                    }};
559 >                tasks[i] = new FutureTask(task);
560 >                p.execute(tasks[i]);
561 >            }
562 >            assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
563 >            assertSame(q, p.getQueue());
564 >            assertFalse(q.contains(tasks[0]));
565 >            assertTrue(q.contains(tasks[tasks.length - 1]));
566 >            assertEquals(tasks.length - 1, q.size());
567 >            done.countDown();
568          }
569 <        finally {
570 <            l = one.shutdownNow();
569 >    }
570 >
571 >    /**
572 >     * remove(task) removes queued task, and fails to remove active task
573 >     */
574 >    public void testRemove() throws InterruptedException {
575 >        BlockingQueue<Runnable> q = new ArrayBlockingQueue<Runnable>(10);
576 >        final ThreadPoolExecutor p =
577 >            new ThreadPoolExecutor(1, 1,
578 >                                   LONG_DELAY_MS, MILLISECONDS,
579 >                                   q);
580 >        try (PoolCleaner cleaner = cleaner(p)) {
581 >            Runnable[] tasks = new Runnable[6];
582 >            final CountDownLatch threadStarted = new CountDownLatch(1);
583 >            final CountDownLatch done = new CountDownLatch(1);
584 >            for (int i = 0; i < tasks.length; i++) {
585 >                tasks[i] = new CheckedRunnable() {
586 >                    public void realRun() throws InterruptedException {
587 >                        threadStarted.countDown();
588 >                        done.await();
589 >                    }};
590 >                p.execute(tasks[i]);
591 >            }
592 >            assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
593 >            assertFalse(p.remove(tasks[0]));
594 >            assertTrue(q.contains(tasks[4]));
595 >            assertTrue(q.contains(tasks[3]));
596 >            assertTrue(p.remove(tasks[4]));
597 >            assertFalse(p.remove(tasks[4]));
598 >            assertFalse(q.contains(tasks[4]));
599 >            assertTrue(q.contains(tasks[3]));
600 >            assertTrue(p.remove(tasks[3]));
601 >            assertFalse(q.contains(tasks[3]));
602 >            done.countDown();
603 >        }
604 >    }
605 >
606 >    /**
607 >     * purge removes cancelled tasks from the queue
608 >     */
609 >    public void testPurge() throws InterruptedException {
610 >        final CountDownLatch threadStarted = new CountDownLatch(1);
611 >        final CountDownLatch done = new CountDownLatch(1);
612 >        final BlockingQueue<Runnable> q = new ArrayBlockingQueue<Runnable>(10);
613 >        final ThreadPoolExecutor p =
614 >            new ThreadPoolExecutor(1, 1,
615 >                                   LONG_DELAY_MS, MILLISECONDS,
616 >                                   q);
617 >        try (PoolCleaner cleaner = cleaner(p, done)) {
618 >            FutureTask[] tasks = new FutureTask[5];
619 >            for (int i = 0; i < tasks.length; i++) {
620 >                Callable task = new CheckedCallable<Boolean>() {
621 >                    public Boolean realCall() throws InterruptedException {
622 >                        threadStarted.countDown();
623 >                        done.await();
624 >                        return Boolean.TRUE;
625 >                    }};
626 >                tasks[i] = new FutureTask(task);
627 >                p.execute(tasks[i]);
628 >            }
629 >            assertTrue(threadStarted.await(LONG_DELAY_MS, MILLISECONDS));
630 >            assertEquals(tasks.length, p.getTaskCount());
631 >            assertEquals(tasks.length - 1, q.size());
632 >            assertEquals(1L, p.getActiveCount());
633 >            assertEquals(0L, p.getCompletedTaskCount());
634 >            tasks[4].cancel(true);
635 >            tasks[3].cancel(false);
636 >            p.purge();
637 >            assertEquals(tasks.length - 3, q.size());
638 >            assertEquals(tasks.length - 2, p.getTaskCount());
639 >            p.purge();         // Nothing to do
640 >            assertEquals(tasks.length - 3, q.size());
641 >            assertEquals(tasks.length - 2, p.getTaskCount());
642          }
257        assertTrue(one.isShutdown());
258        assertTrue(l.size() <= 4);
643      }
644  
645 <    
646 <
647 <    
648 <    
649 <      
645 >    /**
646 >     * shutdownNow returns a list containing tasks that were not run,
647 >     * and those tasks are drained from the queue
648 >     */
649 >    public void testShutdownNow() throws InterruptedException {
650 >        final int poolSize = 2;
651 >        final int count = 5;
652 >        final AtomicInteger ran = new AtomicInteger(0);
653 >        final ThreadPoolExecutor p =
654 >            new ThreadPoolExecutor(poolSize, poolSize,
655 >                                   LONG_DELAY_MS, MILLISECONDS,
656 >                                   new ArrayBlockingQueue<Runnable>(10));
657 >        final CountDownLatch threadsStarted = new CountDownLatch(poolSize);
658 >        Runnable waiter = new CheckedRunnable() { public void realRun() {
659 >            threadsStarted.countDown();
660 >            try {
661 >                MILLISECONDS.sleep(2 * LONG_DELAY_MS);
662 >            } catch (InterruptedException success) {}
663 >            ran.getAndIncrement();
664 >        }};
665 >        for (int i = 0; i < count; i++)
666 >            p.execute(waiter);
667 >        assertTrue(threadsStarted.await(LONG_DELAY_MS, MILLISECONDS));
668 >        assertEquals(poolSize, p.getActiveCount());
669 >        assertEquals(0, p.getCompletedTaskCount());
670 >        final List<Runnable> queuedTasks;
671 >        try {
672 >            queuedTasks = p.shutdownNow();
673 >        } catch (SecurityException ok) {
674 >            return; // Allowed in case test doesn't have privs
675 >        }
676 >        assertTrue(p.isShutdown());
677 >        assertTrue(p.getQueue().isEmpty());
678 >        assertEquals(count - poolSize, queuedTasks.size());
679 >        assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
680 >        assertTrue(p.isTerminated());
681 >        assertEquals(poolSize, ran.get());
682 >        assertEquals(poolSize, p.getCompletedTaskCount());
683 >    }
684 >
685      // Exception Tests
267    
686  
687 <    //---- Tests if corePoolSize argument is less than zero
687 >    /**
688 >     * Constructor throws if corePoolSize argument is less than zero
689 >     */
690      public void testConstructor1() {
691 <        try{
692 <            new ThreadPoolExecutor(-1,1,100L,TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10));
693 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
694 <        }
695 <        catch (IllegalArgumentException i){}
691 >        try {
692 >            new ThreadPoolExecutor(-1, 1, 1L, SECONDS,
693 >                                   new ArrayBlockingQueue<Runnable>(10));
694 >            shouldThrow();
695 >        } catch (IllegalArgumentException success) {}
696      }
697 <    
698 <    //---- Tests if maximumPoolSize is less than zero
697 >
698 >    /**
699 >     * Constructor throws if maximumPoolSize is less than zero
700 >     */
701      public void testConstructor2() {
702 <        try{
703 <            new ThreadPoolExecutor(1,-1,100L,TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10));
704 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
705 <        }
706 <        catch (IllegalArgumentException i2){}
702 >        try {
703 >            new ThreadPoolExecutor(1, -1, 1L, SECONDS,
704 >                                   new ArrayBlockingQueue<Runnable>(10));
705 >            shouldThrow();
706 >        } catch (IllegalArgumentException success) {}
707      }
708 <    
709 <    //---- Tests if maximumPoolSize is equal to zero
708 >
709 >    /**
710 >     * Constructor throws if maximumPoolSize is equal to zero
711 >     */
712      public void testConstructor3() {
713 <        try{
714 <            new ThreadPoolExecutor(1,0,100L,TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10));
715 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
716 <        }
717 <        catch (IllegalArgumentException i3){}
713 >        try {
714 >            new ThreadPoolExecutor(1, 0, 1L, SECONDS,
715 >                                   new ArrayBlockingQueue<Runnable>(10));
716 >            shouldThrow();
717 >        } catch (IllegalArgumentException success) {}
718      }
719  
720 <    //---- Tests if keepAliveTime is less than zero
720 >    /**
721 >     * Constructor throws if keepAliveTime is less than zero
722 >     */
723      public void testConstructor4() {
724 <        try{
725 <            new ThreadPoolExecutor(1,2,-1L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
726 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
727 <        }
728 <        catch (IllegalArgumentException i4){}
724 >        try {
725 >            new ThreadPoolExecutor(1, 2, -1L, SECONDS,
726 >                                   new ArrayBlockingQueue<Runnable>(10));
727 >            shouldThrow();
728 >        } catch (IllegalArgumentException success) {}
729      }
730  
731 <    //---- Tests if corePoolSize is greater than the maximumPoolSize
731 >    /**
732 >     * Constructor throws if corePoolSize is greater than the maximumPoolSize
733 >     */
734      public void testConstructor5() {
735 <        try{
736 <            new ThreadPoolExecutor(2,1,100L,TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10));
737 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
738 <        }
739 <        catch (IllegalArgumentException i5){}
735 >        try {
736 >            new ThreadPoolExecutor(2, 1, 1L, SECONDS,
737 >                                   new ArrayBlockingQueue<Runnable>(10));
738 >            shouldThrow();
739 >        } catch (IllegalArgumentException success) {}
740      }
741 <        
742 <    //---- Tests if workQueue is set to null
743 <    public void testNullPointerException() {
744 <        try{
745 <            new ThreadPoolExecutor(1,2,100L,TimeUnit.MILLISECONDS,null);
746 <            fail("ThreadPoolExecutor constructor should throw a NullPointerException");        
747 <        }
748 <        catch (NullPointerException n){}  
741 >
742 >    /**
743 >     * Constructor throws if workQueue is set to null
744 >     */
745 >    public void testConstructorNullPointerException() {
746 >        try {
747 >            new ThreadPoolExecutor(1, 2, 1L, SECONDS,
748 >                                   (BlockingQueue) null);
749 >            shouldThrow();
750 >        } catch (NullPointerException success) {}
751      }
322    
752  
753 <    
754 <    //---- Tests if corePoolSize argument is less than zero
753 >    /**
754 >     * Constructor throws if corePoolSize argument is less than zero
755 >     */
756      public void testConstructor6() {
757 <        try{
758 <            new ThreadPoolExecutor(-1,1,100L,TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10),new testThread());
759 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
760 <        }catch (IllegalArgumentException i6){}
757 >        try {
758 >            new ThreadPoolExecutor(-1, 1, 1L, SECONDS,
759 >                                   new ArrayBlockingQueue<Runnable>(10),
760 >                                   new SimpleThreadFactory());
761 >            shouldThrow();
762 >        } catch (IllegalArgumentException success) {}
763      }
764 <    
765 <    //---- Tests if maximumPoolSize is less than zero
764 >
765 >    /**
766 >     * Constructor throws if maximumPoolSize is less than zero
767 >     */
768      public void testConstructor7() {
769 <        try{
770 <            new ThreadPoolExecutor(1,-1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new testThread());
771 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
772 <        }
773 <        catch (IllegalArgumentException i7){}
769 >        try {
770 >            new ThreadPoolExecutor(1, -1, 1L, SECONDS,
771 >                                   new ArrayBlockingQueue<Runnable>(10),
772 >                                   new SimpleThreadFactory());
773 >            shouldThrow();
774 >        } catch (IllegalArgumentException success) {}
775      }
776  
777 <    //---- Tests if maximumPoolSize is equal to zero
777 >    /**
778 >     * Constructor throws if maximumPoolSize is equal to zero
779 >     */
780      public void testConstructor8() {
781 <        try{
782 <            new ThreadPoolExecutor(1,0,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new testThread());
783 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
784 <        }
785 <        catch (IllegalArgumentException i8){}
781 >        try {
782 >            new ThreadPoolExecutor(1, 0, 1L, SECONDS,
783 >                                   new ArrayBlockingQueue<Runnable>(10),
784 >                                   new SimpleThreadFactory());
785 >            shouldThrow();
786 >        } catch (IllegalArgumentException success) {}
787      }
788  
789 <    //---- Tests if keepAliveTime is less than zero
789 >    /**
790 >     * Constructor throws if keepAliveTime is less than zero
791 >     */
792      public void testConstructor9() {
793 <        try{
794 <            new ThreadPoolExecutor(1,2,-1L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new testThread());
795 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
796 <        }
797 <        catch (IllegalArgumentException i9){}
793 >        try {
794 >            new ThreadPoolExecutor(1, 2, -1L, SECONDS,
795 >                                   new ArrayBlockingQueue<Runnable>(10),
796 >                                   new SimpleThreadFactory());
797 >            shouldThrow();
798 >        } catch (IllegalArgumentException success) {}
799      }
800  
801 <    //---- Tests if corePoolSize is greater than the maximumPoolSize
801 >    /**
802 >     * Constructor throws if corePoolSize is greater than the maximumPoolSize
803 >     */
804      public void testConstructor10() {
805 <        try{
806 <            new ThreadPoolExecutor(2,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new testThread());
807 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
805 >        try {
806 >            new ThreadPoolExecutor(2, 1, 1L, SECONDS,
807 >                                   new ArrayBlockingQueue<Runnable>(10),
808 >                                   new SimpleThreadFactory());
809 >            shouldThrow();
810 >        } catch (IllegalArgumentException success) {}
811 >    }
812 >
813 >    /**
814 >     * Constructor throws if workQueue is set to null
815 >     */
816 >    public void testConstructorNullPointerException2() {
817 >        try {
818 >            new ThreadPoolExecutor(1, 2, 1L, SECONDS,
819 >                                   (BlockingQueue) null,
820 >                                   new SimpleThreadFactory());
821 >            shouldThrow();
822 >        } catch (NullPointerException success) {}
823 >    }
824 >
825 >    /**
826 >     * Constructor throws if threadFactory is set to null
827 >     */
828 >    public void testConstructorNullPointerException3() {
829 >        try {
830 >            new ThreadPoolExecutor(1, 2, 1L, SECONDS,
831 >                                   new ArrayBlockingQueue<Runnable>(10),
832 >                                   (ThreadFactory) null);
833 >            shouldThrow();
834 >        } catch (NullPointerException success) {}
835 >    }
836 >
837 >    /**
838 >     * Constructor throws if corePoolSize argument is less than zero
839 >     */
840 >    public void testConstructor11() {
841 >        try {
842 >            new ThreadPoolExecutor(-1, 1, 1L, SECONDS,
843 >                                   new ArrayBlockingQueue<Runnable>(10),
844 >                                   new NoOpREHandler());
845 >            shouldThrow();
846 >        } catch (IllegalArgumentException success) {}
847 >    }
848 >
849 >    /**
850 >     * Constructor throws if maximumPoolSize is less than zero
851 >     */
852 >    public void testConstructor12() {
853 >        try {
854 >            new ThreadPoolExecutor(1, -1, 1L, SECONDS,
855 >                                   new ArrayBlockingQueue<Runnable>(10),
856 >                                   new NoOpREHandler());
857 >            shouldThrow();
858 >        } catch (IllegalArgumentException success) {}
859 >    }
860 >
861 >    /**
862 >     * Constructor throws if maximumPoolSize is equal to zero
863 >     */
864 >    public void testConstructor13() {
865 >        try {
866 >            new ThreadPoolExecutor(1, 0, 1L, SECONDS,
867 >                                   new ArrayBlockingQueue<Runnable>(10),
868 >                                   new NoOpREHandler());
869 >            shouldThrow();
870 >        } catch (IllegalArgumentException success) {}
871 >    }
872 >
873 >    /**
874 >     * Constructor throws if keepAliveTime is less than zero
875 >     */
876 >    public void testConstructor14() {
877 >        try {
878 >            new ThreadPoolExecutor(1, 2, -1L, SECONDS,
879 >                                   new ArrayBlockingQueue<Runnable>(10),
880 >                                   new NoOpREHandler());
881 >            shouldThrow();
882 >        } catch (IllegalArgumentException success) {}
883 >    }
884 >
885 >    /**
886 >     * Constructor throws if corePoolSize is greater than the maximumPoolSize
887 >     */
888 >    public void testConstructor15() {
889 >        try {
890 >            new ThreadPoolExecutor(2, 1, 1L, SECONDS,
891 >                                   new ArrayBlockingQueue<Runnable>(10),
892 >                                   new NoOpREHandler());
893 >            shouldThrow();
894 >        } catch (IllegalArgumentException success) {}
895 >    }
896 >
897 >    /**
898 >     * Constructor throws if workQueue is set to null
899 >     */
900 >    public void testConstructorNullPointerException4() {
901 >        try {
902 >            new ThreadPoolExecutor(1, 2, 1L, SECONDS,
903 >                                   (BlockingQueue) null,
904 >                                   new NoOpREHandler());
905 >            shouldThrow();
906 >        } catch (NullPointerException success) {}
907 >    }
908 >
909 >    /**
910 >     * Constructor throws if handler is set to null
911 >     */
912 >    public void testConstructorNullPointerException5() {
913 >        try {
914 >            new ThreadPoolExecutor(1, 2, 1L, SECONDS,
915 >                                   new ArrayBlockingQueue<Runnable>(10),
916 >                                   (RejectedExecutionHandler) null);
917 >            shouldThrow();
918 >        } catch (NullPointerException success) {}
919 >    }
920 >
921 >    /**
922 >     * Constructor throws if corePoolSize argument is less than zero
923 >     */
924 >    public void testConstructor16() {
925 >        try {
926 >            new ThreadPoolExecutor(-1, 1, 1L, SECONDS,
927 >                                   new ArrayBlockingQueue<Runnable>(10),
928 >                                   new SimpleThreadFactory(),
929 >                                   new NoOpREHandler());
930 >            shouldThrow();
931 >        } catch (IllegalArgumentException success) {}
932 >    }
933 >
934 >    /**
935 >     * Constructor throws if maximumPoolSize is less than zero
936 >     */
937 >    public void testConstructor17() {
938 >        try {
939 >            new ThreadPoolExecutor(1, -1, 1L, SECONDS,
940 >                                   new ArrayBlockingQueue<Runnable>(10),
941 >                                   new SimpleThreadFactory(),
942 >                                   new NoOpREHandler());
943 >            shouldThrow();
944 >        } catch (IllegalArgumentException success) {}
945 >    }
946 >
947 >    /**
948 >     * Constructor throws if maximumPoolSize is equal to zero
949 >     */
950 >    public void testConstructor18() {
951 >        try {
952 >            new ThreadPoolExecutor(1, 0, 1L, SECONDS,
953 >                                   new ArrayBlockingQueue<Runnable>(10),
954 >                                   new SimpleThreadFactory(),
955 >                                   new NoOpREHandler());
956 >            shouldThrow();
957 >        } catch (IllegalArgumentException success) {}
958 >    }
959 >
960 >    /**
961 >     * Constructor throws if keepAliveTime is less than zero
962 >     */
963 >    public void testConstructor19() {
964 >        try {
965 >            new ThreadPoolExecutor(1, 2, -1L, SECONDS,
966 >                                   new ArrayBlockingQueue<Runnable>(10),
967 >                                   new SimpleThreadFactory(),
968 >                                   new NoOpREHandler());
969 >            shouldThrow();
970 >        } catch (IllegalArgumentException success) {}
971 >    }
972 >
973 >    /**
974 >     * Constructor throws if corePoolSize is greater than the maximumPoolSize
975 >     */
976 >    public void testConstructor20() {
977 >        try {
978 >            new ThreadPoolExecutor(2, 1, 1L, SECONDS,
979 >                                   new ArrayBlockingQueue<Runnable>(10),
980 >                                   new SimpleThreadFactory(),
981 >                                   new NoOpREHandler());
982 >            shouldThrow();
983 >        } catch (IllegalArgumentException success) {}
984 >    }
985 >
986 >    /**
987 >     * Constructor throws if workQueue is null
988 >     */
989 >    public void testConstructorNullPointerException6() {
990 >        try {
991 >            new ThreadPoolExecutor(1, 2, 1L, SECONDS,
992 >                                   (BlockingQueue) null,
993 >                                   new SimpleThreadFactory(),
994 >                                   new NoOpREHandler());
995 >            shouldThrow();
996 >        } catch (NullPointerException success) {}
997 >    }
998 >
999 >    /**
1000 >     * Constructor throws if handler is null
1001 >     */
1002 >    public void testConstructorNullPointerException7() {
1003 >        try {
1004 >            new ThreadPoolExecutor(1, 2, 1L, SECONDS,
1005 >                                   new ArrayBlockingQueue<Runnable>(10),
1006 >                                   new SimpleThreadFactory(),
1007 >                                   (RejectedExecutionHandler) null);
1008 >            shouldThrow();
1009 >        } catch (NullPointerException success) {}
1010 >    }
1011 >
1012 >    /**
1013 >     * Constructor throws if ThreadFactory is null
1014 >     */
1015 >    public void testConstructorNullPointerException8() {
1016 >        try {
1017 >            new ThreadPoolExecutor(1, 2, 1L, SECONDS,
1018 >                                   new ArrayBlockingQueue<Runnable>(10),
1019 >                                   (ThreadFactory) null,
1020 >                                   new NoOpREHandler());
1021 >            shouldThrow();
1022 >        } catch (NullPointerException success) {}
1023 >    }
1024 >
1025 >    /**
1026 >     * get of submitted callable throws InterruptedException if interrupted
1027 >     */
1028 >    public void testInterruptedSubmit() throws InterruptedException {
1029 >        final ThreadPoolExecutor p =
1030 >            new ThreadPoolExecutor(1, 1,
1031 >                                   60, SECONDS,
1032 >                                   new ArrayBlockingQueue<Runnable>(10));
1033 >
1034 >        try (PoolCleaner cleaner = cleaner(p)) {
1035 >            final CountDownLatch threadStarted = new CountDownLatch(1);
1036 >            final CountDownLatch done = new CountDownLatch(1);
1037 >            Thread t = newStartedThread(new CheckedInterruptedRunnable() {
1038 >                public void realRun() throws Exception {
1039 >                    Callable task = new CheckedCallable<Boolean>() {
1040 >                        public Boolean realCall() throws InterruptedException {
1041 >                            threadStarted.countDown();
1042 >                            done.await();
1043 >                            return Boolean.TRUE;
1044 >                        }};
1045 >                    p.submit(task).get();
1046 >                }});
1047 >
1048 >            assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
1049 >            t.interrupt();
1050 >            awaitTermination(t, MEDIUM_DELAY_MS);
1051 >            done.countDown();
1052          }
366        catch (IllegalArgumentException i10){}
1053      }
1054  
1055 <    //---- Tests if workQueue is set to null
1056 <    public void testNullPointerException2() {
1057 <        try{
1058 <            new ThreadPoolExecutor(1,2,100L,TimeUnit.MILLISECONDS,null,new testThread());
1059 <            fail("ThreadPoolExecutor constructor should throw a NullPointerException");        
1055 >    /**
1056 >     * execute throws RejectedExecutionException if saturated.
1057 >     */
1058 >    public void testSaturatedExecute() {
1059 >        final ThreadPoolExecutor p =
1060 >            new ThreadPoolExecutor(1, 1,
1061 >                                   LONG_DELAY_MS, MILLISECONDS,
1062 >                                   new ArrayBlockingQueue<Runnable>(1));
1063 >        try (PoolCleaner cleaner = cleaner(p)) {
1064 >            final CountDownLatch done = new CountDownLatch(1);
1065 >            Runnable task = new CheckedRunnable() {
1066 >                public void realRun() throws InterruptedException {
1067 >                    done.await();
1068 >                }};
1069 >            for (int i = 0; i < 2; ++i)
1070 >                p.execute(task);
1071 >            for (int i = 0; i < 2; ++i) {
1072 >                try {
1073 >                    p.execute(task);
1074 >                    shouldThrow();
1075 >                } catch (RejectedExecutionException success) {}
1076 >                assertTrue(p.getTaskCount() <= 2);
1077 >            }
1078 >            done.countDown();
1079          }
375        catch (NullPointerException n2){}  
1080      }
1081  
1082 <    //---- Tests if threadFactory is set to null
1083 <    public void testNullPointerException3() {
1084 <        try{
1085 <            ThreadFactory f = null;
1086 <            new ThreadPoolExecutor(1,2,100L,TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10),f);
1087 <            fail("ThreadPoolExecutor constructor should throw a NullPointerException");        
1082 >    /**
1083 >     * submit(runnable) throws RejectedExecutionException if saturated.
1084 >     */
1085 >    public void testSaturatedSubmitRunnable() {
1086 >        final ThreadPoolExecutor p =
1087 >            new ThreadPoolExecutor(1, 1,
1088 >                                   LONG_DELAY_MS, MILLISECONDS,
1089 >                                   new ArrayBlockingQueue<Runnable>(1));
1090 >        try (PoolCleaner cleaner = cleaner(p)) {
1091 >            final CountDownLatch done = new CountDownLatch(1);
1092 >            Runnable task = new CheckedRunnable() {
1093 >                public void realRun() throws InterruptedException {
1094 >                    done.await();
1095 >                }};
1096 >            for (int i = 0; i < 2; ++i)
1097 >                p.submit(task);
1098 >            for (int i = 0; i < 2; ++i) {
1099 >                try {
1100 >                    p.execute(task);
1101 >                    shouldThrow();
1102 >                } catch (RejectedExecutionException success) {}
1103 >                assertTrue(p.getTaskCount() <= 2);
1104 >            }
1105 >            done.countDown();
1106          }
385        catch (NullPointerException n3){}  
1107      }
1108 <
1109 <    
1110 <    //---- Tests if corePoolSize argument is less than zero
1111 <    public void testConstructor11() {
1112 <        try{
1113 <            new ThreadPoolExecutor(-1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new testReject());
1114 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1108 >
1109 >    /**
1110 >     * submit(callable) throws RejectedExecutionException if saturated.
1111 >     */
1112 >    public void testSaturatedSubmitCallable() {
1113 >        final ThreadPoolExecutor p =
1114 >            new ThreadPoolExecutor(1, 1,
1115 >                                   LONG_DELAY_MS, MILLISECONDS,
1116 >                                   new ArrayBlockingQueue<Runnable>(1));
1117 >        try (PoolCleaner cleaner = cleaner(p)) {
1118 >            final CountDownLatch done = new CountDownLatch(1);
1119 >            Runnable task = new CheckedRunnable() {
1120 >                public void realRun() throws InterruptedException {
1121 >                    done.await();
1122 >                }};
1123 >            for (int i = 0; i < 2; ++i)
1124 >                p.submit(Executors.callable(task));
1125 >            for (int i = 0; i < 2; ++i) {
1126 >                try {
1127 >                    p.execute(task);
1128 >                    shouldThrow();
1129 >                } catch (RejectedExecutionException success) {}
1130 >                assertTrue(p.getTaskCount() <= 2);
1131 >            }
1132 >            done.countDown();
1133          }
395        catch (IllegalArgumentException i11){}
1134      }
1135  
1136 <    //---- Tests if maximumPoolSize is less than zero
1137 <    public void testConstructor12() {
1138 <        try{
1139 <            new ThreadPoolExecutor(1,-1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new testReject());
1140 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1136 >    /**
1137 >     * executor using CallerRunsPolicy runs task if saturated.
1138 >     */
1139 >    public void testSaturatedExecute2() {
1140 >        final ThreadPoolExecutor p =
1141 >            new ThreadPoolExecutor(1, 1,
1142 >                                   LONG_DELAY_MS,
1143 >                                   MILLISECONDS,
1144 >                                   new ArrayBlockingQueue<Runnable>(1),
1145 >                                   new ThreadPoolExecutor.CallerRunsPolicy());
1146 >        try (PoolCleaner cleaner = cleaner(p)) {
1147 >            final CountDownLatch done = new CountDownLatch(1);
1148 >            Runnable blocker = new CheckedRunnable() {
1149 >                public void realRun() throws InterruptedException {
1150 >                    done.await();
1151 >                }};
1152 >            p.execute(blocker);
1153 >            TrackedNoOpRunnable[] tasks = new TrackedNoOpRunnable[5];
1154 >            for (int i = 0; i < tasks.length; i++)
1155 >                tasks[i] = new TrackedNoOpRunnable();
1156 >            for (int i = 0; i < tasks.length; i++)
1157 >                p.execute(tasks[i]);
1158 >            for (int i = 1; i < tasks.length; i++)
1159 >                assertTrue(tasks[i].done);
1160 >            assertFalse(tasks[0].done); // waiting in queue
1161 >            done.countDown();
1162          }
404        catch (IllegalArgumentException i12){}
1163      }
1164  
1165 <    //---- Tests if maximumPoolSize is equal to zero
1166 <    public void testConstructor13() {
1167 <        try{
1168 <            new ThreadPoolExecutor(1,0,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new testReject());
1169 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1165 >    /**
1166 >     * executor using DiscardPolicy drops task if saturated.
1167 >     */
1168 >    public void testSaturatedExecute3() {
1169 >        final TrackedNoOpRunnable[] tasks = new TrackedNoOpRunnable[5];
1170 >        for (int i = 0; i < tasks.length; ++i)
1171 >            tasks[i] = new TrackedNoOpRunnable();
1172 >        final ThreadPoolExecutor p =
1173 >            new ThreadPoolExecutor(1, 1,
1174 >                          LONG_DELAY_MS, MILLISECONDS,
1175 >                          new ArrayBlockingQueue<Runnable>(1),
1176 >                          new ThreadPoolExecutor.DiscardPolicy());
1177 >        try (PoolCleaner cleaner = cleaner(p)) {
1178 >            final CountDownLatch done = new CountDownLatch(1);
1179 >            p.execute(awaiter(done));
1180 >
1181 >            for (TrackedNoOpRunnable task : tasks)
1182 >                p.execute(task);
1183 >            for (int i = 1; i < tasks.length; i++)
1184 >                assertFalse(tasks[i].done);
1185 >            done.countDown();
1186 >        }
1187 >        for (int i = 1; i < tasks.length; i++)
1188 >            assertFalse(tasks[i].done);
1189 >        assertTrue(tasks[0].done); // was waiting in queue
1190 >    }
1191 >
1192 >    /**
1193 >     * executor using DiscardOldestPolicy drops oldest task if saturated.
1194 >     */
1195 >    public void testSaturatedExecute4() {
1196 >        final CountDownLatch done = new CountDownLatch(1);
1197 >        LatchAwaiter r1 = awaiter(done);
1198 >        LatchAwaiter r2 = awaiter(done);
1199 >        LatchAwaiter r3 = awaiter(done);
1200 >        final ThreadPoolExecutor p =
1201 >            new ThreadPoolExecutor(1, 1,
1202 >                                   LONG_DELAY_MS, MILLISECONDS,
1203 >                                   new ArrayBlockingQueue<Runnable>(1),
1204 >                                   new ThreadPoolExecutor.DiscardOldestPolicy());
1205 >        try (PoolCleaner cleaner = cleaner(p)) {
1206 >            assertEquals(LatchAwaiter.NEW, r1.state);
1207 >            assertEquals(LatchAwaiter.NEW, r2.state);
1208 >            assertEquals(LatchAwaiter.NEW, r3.state);
1209 >            p.execute(r1);
1210 >            p.execute(r2);
1211 >            assertTrue(p.getQueue().contains(r2));
1212 >            p.execute(r3);
1213 >            assertFalse(p.getQueue().contains(r2));
1214 >            assertTrue(p.getQueue().contains(r3));
1215 >            done.countDown();
1216 >        }
1217 >        assertEquals(LatchAwaiter.DONE, r1.state);
1218 >        assertEquals(LatchAwaiter.NEW, r2.state);
1219 >        assertEquals(LatchAwaiter.DONE, r3.state);
1220 >    }
1221 >
1222 >    /**
1223 >     * execute throws RejectedExecutionException if shutdown
1224 >     */
1225 >    public void testRejectedExecutionExceptionOnShutdown() {
1226 >        final ThreadPoolExecutor p =
1227 >            new ThreadPoolExecutor(1, 1,
1228 >                                   LONG_DELAY_MS, MILLISECONDS,
1229 >                                   new ArrayBlockingQueue<Runnable>(1));
1230 >        try { p.shutdown(); } catch (SecurityException ok) { return; }
1231 >        try (PoolCleaner cleaner = cleaner(p)) {
1232 >            try {
1233 >                p.execute(new NoOpRunnable());
1234 >                shouldThrow();
1235 >            } catch (RejectedExecutionException success) {}
1236          }
413        catch (IllegalArgumentException i13){}
1237      }
1238  
1239 <    //---- Tests if keepAliveTime is less than zero
1240 <    public void testConstructor14() {
1241 <        try{
1242 <            new ThreadPoolExecutor(1,2,-1L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new testReject());
1243 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1239 >    /**
1240 >     * execute using CallerRunsPolicy drops task on shutdown
1241 >     */
1242 >    public void testCallerRunsOnShutdown() {
1243 >        RejectedExecutionHandler h = new ThreadPoolExecutor.CallerRunsPolicy();
1244 >        final ThreadPoolExecutor p =
1245 >            new ThreadPoolExecutor(1, 1,
1246 >                                   LONG_DELAY_MS, MILLISECONDS,
1247 >                                   new ArrayBlockingQueue<Runnable>(1), h);
1248 >
1249 >        try { p.shutdown(); } catch (SecurityException ok) { return; }
1250 >        try (PoolCleaner cleaner = cleaner(p)) {
1251 >            TrackedNoOpRunnable r = new TrackedNoOpRunnable();
1252 >            p.execute(r);
1253 >            assertFalse(r.done);
1254          }
422        catch (IllegalArgumentException i14){}
1255      }
1256  
1257 <    //---- Tests if corePoolSize is greater than the maximumPoolSize
1258 <    public void testConstructor15() {
1259 <        try{
1260 <            new ThreadPoolExecutor(2,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new testReject());
1261 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1257 >    /**
1258 >     * execute using DiscardPolicy drops task on shutdown
1259 >     */
1260 >    public void testDiscardOnShutdown() {
1261 >        final ThreadPoolExecutor p =
1262 >            new ThreadPoolExecutor(1, 1,
1263 >                                   LONG_DELAY_MS, MILLISECONDS,
1264 >                                   new ArrayBlockingQueue<Runnable>(1),
1265 >                                   new ThreadPoolExecutor.DiscardPolicy());
1266 >
1267 >        try { p.shutdown(); } catch (SecurityException ok) { return; }
1268 >        try (PoolCleaner cleaner = cleaner(p)) {
1269 >            TrackedNoOpRunnable r = new TrackedNoOpRunnable();
1270 >            p.execute(r);
1271 >            assertFalse(r.done);
1272          }
431        catch (IllegalArgumentException i15){}
1273      }
1274  
1275 <    //---- Tests if workQueue is set to null
1276 <    public void testNullPointerException4() {
1277 <        try{
1278 <            new ThreadPoolExecutor(1,2,100L,TimeUnit.MILLISECONDS,null,new testReject());
1279 <            fail("ThreadPoolExecutor constructor should throw a NullPointerException");        
1275 >    /**
1276 >     * execute using DiscardOldestPolicy drops task on shutdown
1277 >     */
1278 >    public void testDiscardOldestOnShutdown() {
1279 >        final ThreadPoolExecutor p =
1280 >            new ThreadPoolExecutor(1, 1,
1281 >                                   LONG_DELAY_MS, MILLISECONDS,
1282 >                                   new ArrayBlockingQueue<Runnable>(1),
1283 >                                   new ThreadPoolExecutor.DiscardOldestPolicy());
1284 >
1285 >        try { p.shutdown(); } catch (SecurityException ok) { return; }
1286 >        try (PoolCleaner cleaner = cleaner(p)) {
1287 >            TrackedNoOpRunnable r = new TrackedNoOpRunnable();
1288 >            p.execute(r);
1289 >            assertFalse(r.done);
1290          }
440        catch (NullPointerException n4){}  
1291      }
1292  
1293 <    //---- Tests if handler is set to null
1294 <    public void testNullPointerException5() {
1295 <        try{
1296 <            RejectedExecutionHandler r = null;
1297 <            new ThreadPoolExecutor(1,2,100L,TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10),r);
1298 <            fail("ThreadPoolExecutor constructor should throw a NullPointerException");        
1293 >    /**
1294 >     * execute(null) throws NPE
1295 >     */
1296 >    public void testExecuteNull() {
1297 >        final ThreadPoolExecutor p =
1298 >            new ThreadPoolExecutor(1, 2,
1299 >                                   1L, SECONDS,
1300 >                                   new ArrayBlockingQueue<Runnable>(10));
1301 >        try (PoolCleaner cleaner = cleaner(p)) {
1302 >            try {
1303 >                p.execute(null);
1304 >                shouldThrow();
1305 >            } catch (NullPointerException success) {}
1306          }
450        catch (NullPointerException n5){}  
1307      }
1308  
1309 <    
1310 <    //---- Tests if corePoolSize argument is less than zero
1311 <    public void testConstructor16() {
1312 <        try{
1313 <            new ThreadPoolExecutor(-1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new testThread(),new testReject());
1314 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1309 >    /**
1310 >     * setCorePoolSize of negative value throws IllegalArgumentException
1311 >     */
1312 >    public void testCorePoolSizeIllegalArgumentException() {
1313 >        final ThreadPoolExecutor p =
1314 >            new ThreadPoolExecutor(1, 2,
1315 >                                   LONG_DELAY_MS, MILLISECONDS,
1316 >                                   new ArrayBlockingQueue<Runnable>(10));
1317 >        try (PoolCleaner cleaner = cleaner(p)) {
1318 >            try {
1319 >                p.setCorePoolSize(-1);
1320 >                shouldThrow();
1321 >            } catch (IllegalArgumentException success) {}
1322          }
460        catch (IllegalArgumentException i16){}
1323      }
1324  
1325 <    //---- Tests if maximumPoolSize is less than zero
1326 <    public void testConstructor17() {
1327 <        try{
1328 <            new ThreadPoolExecutor(1,-1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new testThread(),new testReject());
1329 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1325 >    /**
1326 >     * setMaximumPoolSize(int) throws IllegalArgumentException if
1327 >     * given a value less the core pool size
1328 >     */
1329 >    public void testMaximumPoolSizeIllegalArgumentException() {
1330 >        final ThreadPoolExecutor p =
1331 >            new ThreadPoolExecutor(2, 3,
1332 >                                   LONG_DELAY_MS, MILLISECONDS,
1333 >                                   new ArrayBlockingQueue<Runnable>(10));
1334 >        try (PoolCleaner cleaner = cleaner(p)) {
1335 >            try {
1336 >                p.setMaximumPoolSize(1);
1337 >                shouldThrow();
1338 >            } catch (IllegalArgumentException success) {}
1339          }
469        catch (IllegalArgumentException i17){}
1340      }
1341  
1342 <    //---- Tests if maximumPoolSize is equal to zero
1343 <    public void testConstructor18() {
1344 <        try{
1345 <            new ThreadPoolExecutor(1,0,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new testThread(),new testReject());
1346 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1342 >    /**
1343 >     * setMaximumPoolSize throws IllegalArgumentException
1344 >     * if given a negative value
1345 >     */
1346 >    public void testMaximumPoolSizeIllegalArgumentException2() {
1347 >        final ThreadPoolExecutor p =
1348 >            new ThreadPoolExecutor(2, 3,
1349 >                                   LONG_DELAY_MS, MILLISECONDS,
1350 >                                   new ArrayBlockingQueue<Runnable>(10));
1351 >        try (PoolCleaner cleaner = cleaner(p)) {
1352 >            try {
1353 >                p.setMaximumPoolSize(-1);
1354 >                shouldThrow();
1355 >            } catch (IllegalArgumentException success) {}
1356          }
478        catch (IllegalArgumentException i18){}
1357      }
1358  
1359 <    //---- Tests if keepAliveTime is less than zero
1360 <    public void testConstructor19() {
1361 <        try{
1362 <            new ThreadPoolExecutor(1,2,-1L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new testThread(),new testReject());
1363 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1359 >    /**
1360 >     * Configuration changes that allow core pool size greater than
1361 >     * max pool size result in IllegalArgumentException.
1362 >     */
1363 >    public void testPoolSizeInvariants() {
1364 >        final ThreadPoolExecutor p =
1365 >            new ThreadPoolExecutor(1, 1,
1366 >                                   LONG_DELAY_MS, MILLISECONDS,
1367 >                                   new ArrayBlockingQueue<Runnable>(10));
1368 >        try (PoolCleaner cleaner = cleaner(p)) {
1369 >            for (int s = 1; s < 5; s++) {
1370 >                p.setMaximumPoolSize(s);
1371 >                p.setCorePoolSize(s);
1372 >                try {
1373 >                    p.setMaximumPoolSize(s - 1);
1374 >                    shouldThrow();
1375 >                } catch (IllegalArgumentException success) {}
1376 >                assertEquals(s, p.getCorePoolSize());
1377 >                assertEquals(s, p.getMaximumPoolSize());
1378 >                try {
1379 >                    p.setCorePoolSize(s + 1);
1380 >                    shouldThrow();
1381 >                } catch (IllegalArgumentException success) {}
1382 >                assertEquals(s, p.getCorePoolSize());
1383 >                assertEquals(s, p.getMaximumPoolSize());
1384 >            }
1385 >        }
1386 >    }
1387 >
1388 >    /**
1389 >     * setKeepAliveTime throws IllegalArgumentException
1390 >     * when given a negative value
1391 >     */
1392 >    public void testKeepAliveTimeIllegalArgumentException() {
1393 >        final ThreadPoolExecutor p =
1394 >            new ThreadPoolExecutor(2, 3,
1395 >                                   LONG_DELAY_MS, MILLISECONDS,
1396 >                                   new ArrayBlockingQueue<Runnable>(10));
1397 >        try (PoolCleaner cleaner = cleaner(p)) {
1398 >            try {
1399 >                p.setKeepAliveTime(-1, MILLISECONDS);
1400 >                shouldThrow();
1401 >            } catch (IllegalArgumentException success) {}
1402 >        }
1403 >    }
1404 >
1405 >    /**
1406 >     * terminated() is called on termination
1407 >     */
1408 >    public void testTerminated() {
1409 >        ExtendedTPE p = new ExtendedTPE();
1410 >        try (PoolCleaner cleaner = cleaner(p)) {
1411 >            try { p.shutdown(); } catch (SecurityException ok) { return; }
1412 >            assertTrue(p.terminatedCalled());
1413 >            assertTrue(p.isShutdown());
1414 >        }
1415 >    }
1416 >
1417 >    /**
1418 >     * beforeExecute and afterExecute are called when executing task
1419 >     */
1420 >    public void testBeforeAfter() throws InterruptedException {
1421 >        ExtendedTPE p = new ExtendedTPE();
1422 >        try (PoolCleaner cleaner = cleaner(p)) {
1423 >            final CountDownLatch done = new CountDownLatch(1);
1424 >            p.execute(new CheckedRunnable() {
1425 >                public void realRun() {
1426 >                    done.countDown();
1427 >                }});
1428 >            await(p.afterCalled);
1429 >            assertEquals(0, done.getCount());
1430 >            assertTrue(p.afterCalled());
1431 >            assertTrue(p.beforeCalled());
1432 >        }
1433 >    }
1434 >
1435 >    /**
1436 >     * completed submit of callable returns result
1437 >     */
1438 >    public void testSubmitCallable() throws Exception {
1439 >        final ExecutorService e =
1440 >            new ThreadPoolExecutor(2, 2,
1441 >                                   LONG_DELAY_MS, MILLISECONDS,
1442 >                                   new ArrayBlockingQueue<Runnable>(10));
1443 >        try (PoolCleaner cleaner = cleaner(e)) {
1444 >            Future<String> future = e.submit(new StringTask());
1445 >            String result = future.get();
1446 >            assertSame(TEST_STRING, result);
1447 >        }
1448 >    }
1449 >
1450 >    /**
1451 >     * completed submit of runnable returns successfully
1452 >     */
1453 >    public void testSubmitRunnable() throws Exception {
1454 >        final ExecutorService e =
1455 >            new ThreadPoolExecutor(2, 2,
1456 >                                   LONG_DELAY_MS, MILLISECONDS,
1457 >                                   new ArrayBlockingQueue<Runnable>(10));
1458 >        try (PoolCleaner cleaner = cleaner(e)) {
1459 >            Future<?> future = e.submit(new NoOpRunnable());
1460 >            future.get();
1461 >            assertTrue(future.isDone());
1462 >        }
1463 >    }
1464 >
1465 >    /**
1466 >     * completed submit of (runnable, result) returns result
1467 >     */
1468 >    public void testSubmitRunnable2() throws Exception {
1469 >        final ExecutorService e =
1470 >            new ThreadPoolExecutor(2, 2,
1471 >                                   LONG_DELAY_MS, MILLISECONDS,
1472 >                                   new ArrayBlockingQueue<Runnable>(10));
1473 >        try (PoolCleaner cleaner = cleaner(e)) {
1474 >            Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING);
1475 >            String result = future.get();
1476 >            assertSame(TEST_STRING, result);
1477 >        }
1478 >    }
1479 >
1480 >    /**
1481 >     * invokeAny(null) throws NPE
1482 >     */
1483 >    public void testInvokeAny1() throws Exception {
1484 >        final ExecutorService e =
1485 >            new ThreadPoolExecutor(2, 2,
1486 >                                   LONG_DELAY_MS, MILLISECONDS,
1487 >                                   new ArrayBlockingQueue<Runnable>(10));
1488 >        try (PoolCleaner cleaner = cleaner(e)) {
1489 >            try {
1490 >                e.invokeAny(null);
1491 >                shouldThrow();
1492 >            } catch (NullPointerException success) {}
1493 >        }
1494 >    }
1495 >
1496 >    /**
1497 >     * invokeAny(empty collection) throws IAE
1498 >     */
1499 >    public void testInvokeAny2() 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 >            try {
1506 >                e.invokeAny(new ArrayList<Callable<String>>());
1507 >                shouldThrow();
1508 >            } catch (IllegalArgumentException success) {}
1509 >        }
1510 >    }
1511 >
1512 >    /**
1513 >     * invokeAny(c) throws NPE if c has null elements
1514 >     */
1515 >    public void testInvokeAny3() throws Exception {
1516 >        final CountDownLatch latch = new CountDownLatch(1);
1517 >        final ExecutorService e =
1518 >            new ThreadPoolExecutor(2, 2,
1519 >                                   LONG_DELAY_MS, MILLISECONDS,
1520 >                                   new ArrayBlockingQueue<Runnable>(10));
1521 >        try (PoolCleaner cleaner = cleaner(e)) {
1522 >            List<Callable<String>> l = new ArrayList<Callable<String>>();
1523 >            l.add(latchAwaitingStringTask(latch));
1524 >            l.add(null);
1525 >            try {
1526 >                e.invokeAny(l);
1527 >                shouldThrow();
1528 >            } catch (NullPointerException success) {}
1529 >            latch.countDown();
1530 >        }
1531 >    }
1532 >
1533 >    /**
1534 >     * invokeAny(c) throws ExecutionException if no task completes
1535 >     */
1536 >    public void testInvokeAny4() throws Exception {
1537 >        final ExecutorService e =
1538 >            new ThreadPoolExecutor(2, 2,
1539 >                                   LONG_DELAY_MS, MILLISECONDS,
1540 >                                   new ArrayBlockingQueue<Runnable>(10));
1541 >        try (PoolCleaner cleaner = cleaner(e)) {
1542 >            List<Callable<String>> l = new ArrayList<Callable<String>>();
1543 >            l.add(new NPETask());
1544 >            try {
1545 >                e.invokeAny(l);
1546 >                shouldThrow();
1547 >            } catch (ExecutionException success) {
1548 >                assertTrue(success.getCause() instanceof NullPointerException);
1549 >            }
1550 >        }
1551 >    }
1552 >
1553 >    /**
1554 >     * invokeAny(c) returns result of some task
1555 >     */
1556 >    public void testInvokeAny5() throws Exception {
1557 >        final ExecutorService e =
1558 >            new ThreadPoolExecutor(2, 2,
1559 >                                   LONG_DELAY_MS, MILLISECONDS,
1560 >                                   new ArrayBlockingQueue<Runnable>(10));
1561 >        try (PoolCleaner cleaner = cleaner(e)) {
1562 >            List<Callable<String>> l = new ArrayList<Callable<String>>();
1563 >            l.add(new StringTask());
1564 >            l.add(new StringTask());
1565 >            String result = e.invokeAny(l);
1566 >            assertSame(TEST_STRING, result);
1567 >        }
1568 >    }
1569 >
1570 >    /**
1571 >     * invokeAll(null) throws NPE
1572 >     */
1573 >    public void testInvokeAll1() throws Exception {
1574 >        final ExecutorService e =
1575 >            new ThreadPoolExecutor(2, 2,
1576 >                                   LONG_DELAY_MS, MILLISECONDS,
1577 >                                   new ArrayBlockingQueue<Runnable>(10));
1578 >        try (PoolCleaner cleaner = cleaner(e)) {
1579 >            try {
1580 >                e.invokeAll(null);
1581 >                shouldThrow();
1582 >            } catch (NullPointerException success) {}
1583 >        }
1584 >    }
1585 >
1586 >    /**
1587 >     * invokeAll(empty collection) returns empty collection
1588 >     */
1589 >    public void testInvokeAll2() throws InterruptedException {
1590 >        final ExecutorService e =
1591 >            new ThreadPoolExecutor(2, 2,
1592 >                                   LONG_DELAY_MS, MILLISECONDS,
1593 >                                   new ArrayBlockingQueue<Runnable>(10));
1594 >        try (PoolCleaner cleaner = cleaner(e)) {
1595 >            List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>());
1596 >            assertTrue(r.isEmpty());
1597 >        }
1598 >    }
1599 >
1600 >    /**
1601 >     * invokeAll(c) throws NPE if c has null elements
1602 >     */
1603 >    public void testInvokeAll3() throws Exception {
1604 >        final ExecutorService e =
1605 >            new ThreadPoolExecutor(2, 2,
1606 >                                   LONG_DELAY_MS, MILLISECONDS,
1607 >                                   new ArrayBlockingQueue<Runnable>(10));
1608 >        try (PoolCleaner cleaner = cleaner(e)) {
1609 >            List<Callable<String>> l = new ArrayList<Callable<String>>();
1610 >            l.add(new StringTask());
1611 >            l.add(null);
1612 >            try {
1613 >                e.invokeAll(l);
1614 >                shouldThrow();
1615 >            } catch (NullPointerException success) {}
1616 >        }
1617 >    }
1618 >
1619 >    /**
1620 >     * get of element of invokeAll(c) throws exception on failed task
1621 >     */
1622 >    public void testInvokeAll4() throws Exception {
1623 >        final ExecutorService e =
1624 >            new ThreadPoolExecutor(2, 2,
1625 >                                   LONG_DELAY_MS, MILLISECONDS,
1626 >                                   new ArrayBlockingQueue<Runnable>(10));
1627 >        try (PoolCleaner cleaner = cleaner(e)) {
1628 >            List<Callable<String>> l = new ArrayList<Callable<String>>();
1629 >            l.add(new NPETask());
1630 >            List<Future<String>> futures = e.invokeAll(l);
1631 >            assertEquals(1, futures.size());
1632 >            try {
1633 >                futures.get(0).get();
1634 >                shouldThrow();
1635 >            } catch (ExecutionException success) {
1636 >                assertTrue(success.getCause() instanceof NullPointerException);
1637 >            }
1638 >        }
1639 >    }
1640 >
1641 >    /**
1642 >     * invokeAll(c) returns results of all completed tasks
1643 >     */
1644 >    public void testInvokeAll5() throws Exception {
1645 >        final ExecutorService e =
1646 >            new ThreadPoolExecutor(2, 2,
1647 >                                   LONG_DELAY_MS, MILLISECONDS,
1648 >                                   new ArrayBlockingQueue<Runnable>(10));
1649 >        try (PoolCleaner cleaner = cleaner(e)) {
1650 >            List<Callable<String>> l = new ArrayList<Callable<String>>();
1651 >            l.add(new StringTask());
1652 >            l.add(new StringTask());
1653 >            List<Future<String>> futures = e.invokeAll(l);
1654 >            assertEquals(2, futures.size());
1655 >            for (Future<String> future : futures)
1656 >                assertSame(TEST_STRING, future.get());
1657 >        }
1658 >    }
1659 >
1660 >    /**
1661 >     * timed invokeAny(null) throws NPE
1662 >     */
1663 >    public void testTimedInvokeAny1() throws Exception {
1664 >        final ExecutorService e =
1665 >            new ThreadPoolExecutor(2, 2,
1666 >                                   LONG_DELAY_MS, MILLISECONDS,
1667 >                                   new ArrayBlockingQueue<Runnable>(10));
1668 >        try (PoolCleaner cleaner = cleaner(e)) {
1669 >            try {
1670 >                e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS);
1671 >                shouldThrow();
1672 >            } catch (NullPointerException success) {}
1673 >        }
1674 >    }
1675 >
1676 >    /**
1677 >     * timed invokeAny(,,null) throws NPE
1678 >     */
1679 >    public void testTimedInvokeAnyNullTimeUnit() throws Exception {
1680 >        final ExecutorService e =
1681 >            new ThreadPoolExecutor(2, 2,
1682 >                                   LONG_DELAY_MS, MILLISECONDS,
1683 >                                   new ArrayBlockingQueue<Runnable>(10));
1684 >        try (PoolCleaner cleaner = cleaner(e)) {
1685 >            List<Callable<String>> l = new ArrayList<Callable<String>>();
1686 >            l.add(new StringTask());
1687 >            try {
1688 >                e.invokeAny(l, MEDIUM_DELAY_MS, null);
1689 >                shouldThrow();
1690 >            } catch (NullPointerException success) {}
1691 >        }
1692 >    }
1693 >
1694 >    /**
1695 >     * timed invokeAny(empty collection) throws IAE
1696 >     */
1697 >    public void testTimedInvokeAny2() throws Exception {
1698 >        final ExecutorService e =
1699 >            new ThreadPoolExecutor(2, 2,
1700 >                                   LONG_DELAY_MS, MILLISECONDS,
1701 >                                   new ArrayBlockingQueue<Runnable>(10));
1702 >        try (PoolCleaner cleaner = cleaner(e)) {
1703 >            try {
1704 >                e.invokeAny(new ArrayList<Callable<String>>(),
1705 >                            MEDIUM_DELAY_MS, MILLISECONDS);
1706 >                shouldThrow();
1707 >            } catch (IllegalArgumentException success) {}
1708 >        }
1709 >    }
1710 >
1711 >    /**
1712 >     * timed invokeAny(c) throws NPE if c has null elements
1713 >     */
1714 >    public void testTimedInvokeAny3() throws Exception {
1715 >        final CountDownLatch latch = new CountDownLatch(1);
1716 >        final ExecutorService e =
1717 >            new ThreadPoolExecutor(2, 2,
1718 >                                   LONG_DELAY_MS, MILLISECONDS,
1719 >                                   new ArrayBlockingQueue<Runnable>(10));
1720 >        try (PoolCleaner cleaner = cleaner(e)) {
1721 >            List<Callable<String>> l = new ArrayList<Callable<String>>();
1722 >            l.add(latchAwaitingStringTask(latch));
1723 >            l.add(null);
1724 >            try {
1725 >                e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1726 >                shouldThrow();
1727 >            } catch (NullPointerException success) {}
1728 >            latch.countDown();
1729 >        }
1730 >    }
1731 >
1732 >    /**
1733 >     * timed invokeAny(c) throws ExecutionException if no task completes
1734 >     */
1735 >    public void testTimedInvokeAny4() throws Exception {
1736 >        final ExecutorService e =
1737 >            new ThreadPoolExecutor(2, 2,
1738 >                                   LONG_DELAY_MS, MILLISECONDS,
1739 >                                   new ArrayBlockingQueue<Runnable>(10));
1740 >        try (PoolCleaner cleaner = cleaner(e)) {
1741 >            List<Callable<String>> l = new ArrayList<Callable<String>>();
1742 >            l.add(new NPETask());
1743 >            try {
1744 >                e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1745 >                shouldThrow();
1746 >            } catch (ExecutionException success) {
1747 >                assertTrue(success.getCause() instanceof NullPointerException);
1748 >            }
1749 >        }
1750 >    }
1751 >
1752 >    /**
1753 >     * timed invokeAny(c) returns result of some task
1754 >     */
1755 >    public void testTimedInvokeAny5() throws Exception {
1756 >        final ExecutorService e =
1757 >            new ThreadPoolExecutor(2, 2,
1758 >                                   LONG_DELAY_MS, MILLISECONDS,
1759 >                                   new ArrayBlockingQueue<Runnable>(10));
1760 >        try (PoolCleaner cleaner = cleaner(e)) {
1761 >            List<Callable<String>> l = new ArrayList<Callable<String>>();
1762 >            l.add(new StringTask());
1763 >            l.add(new StringTask());
1764 >            String result = e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1765 >            assertSame(TEST_STRING, result);
1766 >        }
1767 >    }
1768 >
1769 >    /**
1770 >     * timed invokeAll(null) throws NPE
1771 >     */
1772 >    public void testTimedInvokeAll1() throws Exception {
1773 >        final ExecutorService e =
1774 >            new ThreadPoolExecutor(2, 2,
1775 >                                   LONG_DELAY_MS, MILLISECONDS,
1776 >                                   new ArrayBlockingQueue<Runnable>(10));
1777 >        try (PoolCleaner cleaner = cleaner(e)) {
1778 >            try {
1779 >                e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS);
1780 >                shouldThrow();
1781 >            } catch (NullPointerException success) {}
1782 >        }
1783 >    }
1784 >
1785 >    /**
1786 >     * timed invokeAll(,,null) throws NPE
1787 >     */
1788 >    public void testTimedInvokeAllNullTimeUnit() throws Exception {
1789 >        final ExecutorService e =
1790 >            new ThreadPoolExecutor(2, 2,
1791 >                                   LONG_DELAY_MS, MILLISECONDS,
1792 >                                   new ArrayBlockingQueue<Runnable>(10));
1793 >        try (PoolCleaner cleaner = cleaner(e)) {
1794 >            List<Callable<String>> l = new ArrayList<Callable<String>>();
1795 >            l.add(new StringTask());
1796 >            try {
1797 >                e.invokeAll(l, MEDIUM_DELAY_MS, null);
1798 >                shouldThrow();
1799 >            } catch (NullPointerException success) {}
1800 >        }
1801 >    }
1802 >
1803 >    /**
1804 >     * timed invokeAll(empty collection) returns empty collection
1805 >     */
1806 >    public void testTimedInvokeAll2() throws InterruptedException {
1807 >        final ExecutorService e =
1808 >            new ThreadPoolExecutor(2, 2,
1809 >                                   LONG_DELAY_MS, MILLISECONDS,
1810 >                                   new ArrayBlockingQueue<Runnable>(10));
1811 >        try (PoolCleaner cleaner = cleaner(e)) {
1812 >            List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(),
1813 >                                                 MEDIUM_DELAY_MS, MILLISECONDS);
1814 >            assertTrue(r.isEmpty());
1815 >        }
1816 >    }
1817 >
1818 >    /**
1819 >     * timed invokeAll(c) throws NPE if c has null elements
1820 >     */
1821 >    public void testTimedInvokeAll3() throws Exception {
1822 >        final ExecutorService e =
1823 >            new ThreadPoolExecutor(2, 2,
1824 >                                   LONG_DELAY_MS, MILLISECONDS,
1825 >                                   new ArrayBlockingQueue<Runnable>(10));
1826 >        try (PoolCleaner cleaner = cleaner(e)) {
1827 >            List<Callable<String>> l = new ArrayList<Callable<String>>();
1828 >            l.add(new StringTask());
1829 >            l.add(null);
1830 >            try {
1831 >                e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1832 >                shouldThrow();
1833 >            } catch (NullPointerException success) {}
1834 >        }
1835 >    }
1836 >
1837 >    /**
1838 >     * get of element of invokeAll(c) throws exception on failed task
1839 >     */
1840 >    public void testTimedInvokeAll4() throws Exception {
1841 >        final ExecutorService e =
1842 >            new ThreadPoolExecutor(2, 2,
1843 >                                   LONG_DELAY_MS, MILLISECONDS,
1844 >                                   new ArrayBlockingQueue<Runnable>(10));
1845 >        try (PoolCleaner cleaner = cleaner(e)) {
1846 >            List<Callable<String>> l = new ArrayList<Callable<String>>();
1847 >            l.add(new NPETask());
1848 >            List<Future<String>> futures =
1849 >                e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1850 >            assertEquals(1, futures.size());
1851 >            try {
1852 >                futures.get(0).get();
1853 >                shouldThrow();
1854 >            } catch (ExecutionException success) {
1855 >                assertTrue(success.getCause() instanceof NullPointerException);
1856 >            }
1857 >        }
1858 >    }
1859 >
1860 >    /**
1861 >     * timed invokeAll(c) returns results of all completed tasks
1862 >     */
1863 >    public void testTimedInvokeAll5() throws Exception {
1864 >        final ExecutorService e =
1865 >            new ThreadPoolExecutor(2, 2,
1866 >                                   LONG_DELAY_MS, MILLISECONDS,
1867 >                                   new ArrayBlockingQueue<Runnable>(10));
1868 >        try (PoolCleaner cleaner = cleaner(e)) {
1869 >            List<Callable<String>> l = new ArrayList<Callable<String>>();
1870 >            l.add(new StringTask());
1871 >            l.add(new StringTask());
1872 >            List<Future<String>> futures =
1873 >                e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS);
1874 >            assertEquals(2, futures.size());
1875 >            for (Future<String> future : futures)
1876 >                assertSame(TEST_STRING, future.get());
1877 >        }
1878 >    }
1879 >
1880 >    /**
1881 >     * timed invokeAll(c) cancels tasks not completed by timeout
1882 >     */
1883 >    public void testTimedInvokeAll6() throws Exception {
1884 >        final ExecutorService e =
1885 >            new ThreadPoolExecutor(2, 2,
1886 >                                   LONG_DELAY_MS, MILLISECONDS,
1887 >                                   new ArrayBlockingQueue<Runnable>(10));
1888 >        try (PoolCleaner cleaner = cleaner(e)) {
1889 >            for (long timeout = timeoutMillis();;) {
1890 >                List<Callable<String>> tasks = new ArrayList<>();
1891 >                tasks.add(new StringTask("0"));
1892 >                tasks.add(Executors.callable(new LongPossiblyInterruptedRunnable(), TEST_STRING));
1893 >                tasks.add(new StringTask("2"));
1894 >                long startTime = System.nanoTime();
1895 >                List<Future<String>> futures =
1896 >                    e.invokeAll(tasks, timeout, MILLISECONDS);
1897 >                assertEquals(tasks.size(), futures.size());
1898 >                assertTrue(millisElapsedSince(startTime) >= timeout);
1899 >                for (Future future : futures)
1900 >                    assertTrue(future.isDone());
1901 >                assertTrue(futures.get(1).isCancelled());
1902 >                try {
1903 >                    assertEquals("0", futures.get(0).get());
1904 >                    assertEquals("2", futures.get(2).get());
1905 >                    break;
1906 >                } catch (CancellationException retryWithLongerTimeout) {
1907 >                    timeout *= 2;
1908 >                    if (timeout >= LONG_DELAY_MS / 2)
1909 >                        fail("expected exactly one task to be cancelled");
1910 >                }
1911 >            }
1912 >        }
1913 >    }
1914 >
1915 >    /**
1916 >     * Execution continues if there is at least one thread even if
1917 >     * thread factory fails to create more
1918 >     */
1919 >    public void testFailingThreadFactory() throws InterruptedException {
1920 >        final ExecutorService e =
1921 >            new ThreadPoolExecutor(100, 100,
1922 >                                   LONG_DELAY_MS, MILLISECONDS,
1923 >                                   new LinkedBlockingQueue<Runnable>(),
1924 >                                   new FailingThreadFactory());
1925 >        try (PoolCleaner cleaner = cleaner(e)) {
1926 >            final int TASKS = 100;
1927 >            final CountDownLatch done = new CountDownLatch(TASKS);
1928 >            for (int k = 0; k < TASKS; ++k)
1929 >                e.execute(new CheckedRunnable() {
1930 >                    public void realRun() {
1931 >                        done.countDown();
1932 >                    }});
1933 >            assertTrue(done.await(LONG_DELAY_MS, MILLISECONDS));
1934 >        }
1935 >    }
1936 >
1937 >    /**
1938 >     * allowsCoreThreadTimeOut is by default false.
1939 >     */
1940 >    public void testAllowsCoreThreadTimeOut() {
1941 >        final ThreadPoolExecutor p =
1942 >            new ThreadPoolExecutor(2, 2,
1943 >                                   1000, MILLISECONDS,
1944 >                                   new ArrayBlockingQueue<Runnable>(10));
1945 >        try (PoolCleaner cleaner = cleaner(p)) {
1946 >            assertFalse(p.allowsCoreThreadTimeOut());
1947 >        }
1948 >    }
1949 >
1950 >    /**
1951 >     * allowCoreThreadTimeOut(true) causes idle threads to time out
1952 >     */
1953 >    public void testAllowCoreThreadTimeOut_true() throws Exception {
1954 >        long keepAliveTime = timeoutMillis();
1955 >        final ThreadPoolExecutor p =
1956 >            new ThreadPoolExecutor(2, 10,
1957 >                                   keepAliveTime, MILLISECONDS,
1958 >                                   new ArrayBlockingQueue<Runnable>(10));
1959 >        try (PoolCleaner cleaner = cleaner(p)) {
1960 >            final CountDownLatch threadStarted = new CountDownLatch(1);
1961 >            p.allowCoreThreadTimeOut(true);
1962 >            p.execute(new CheckedRunnable() {
1963 >                public void realRun() {
1964 >                    threadStarted.countDown();
1965 >                    assertEquals(1, p.getPoolSize());
1966 >                }});
1967 >            await(threadStarted);
1968 >            delay(keepAliveTime);
1969 >            long startTime = System.nanoTime();
1970 >            while (p.getPoolSize() > 0
1971 >                   && millisElapsedSince(startTime) < LONG_DELAY_MS)
1972 >                Thread.yield();
1973 >            assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1974 >            assertEquals(0, p.getPoolSize());
1975 >        }
1976 >    }
1977 >
1978 >    /**
1979 >     * allowCoreThreadTimeOut(false) causes idle threads not to time out
1980 >     */
1981 >    public void testAllowCoreThreadTimeOut_false() throws Exception {
1982 >        long keepAliveTime = timeoutMillis();
1983 >        final ThreadPoolExecutor p =
1984 >            new ThreadPoolExecutor(2, 10,
1985 >                                   keepAliveTime, MILLISECONDS,
1986 >                                   new ArrayBlockingQueue<Runnable>(10));
1987 >        try (PoolCleaner cleaner = cleaner(p)) {
1988 >            final CountDownLatch threadStarted = new CountDownLatch(1);
1989 >            p.allowCoreThreadTimeOut(false);
1990 >            p.execute(new CheckedRunnable() {
1991 >                public void realRun() throws InterruptedException {
1992 >                    threadStarted.countDown();
1993 >                    assertTrue(p.getPoolSize() >= 1);
1994 >                }});
1995 >            delay(2 * keepAliveTime);
1996 >            assertTrue(p.getPoolSize() >= 1);
1997 >        }
1998 >    }
1999 >
2000 >    /**
2001 >     * execute allows the same task to be submitted multiple times, even
2002 >     * if rejected
2003 >     */
2004 >    public void testRejectedRecycledTask() throws InterruptedException {
2005 >        final int nTasks = 1000;
2006 >        final CountDownLatch done = new CountDownLatch(nTasks);
2007 >        final Runnable recycledTask = new Runnable() {
2008 >            public void run() {
2009 >                done.countDown();
2010 >            }};
2011 >        final ThreadPoolExecutor p =
2012 >            new ThreadPoolExecutor(1, 30,
2013 >                                   60, SECONDS,
2014 >                                   new ArrayBlockingQueue(30));
2015 >        try (PoolCleaner cleaner = cleaner(p)) {
2016 >            for (int i = 0; i < nTasks; ++i) {
2017 >                for (;;) {
2018 >                    try {
2019 >                        p.execute(recycledTask);
2020 >                        break;
2021 >                    }
2022 >                    catch (RejectedExecutionException ignore) {}
2023 >                }
2024 >            }
2025 >            // enough time to run all tasks
2026 >            assertTrue(done.await(nTasks * SHORT_DELAY_MS, MILLISECONDS));
2027 >        }
2028 >    }
2029 >
2030 >    /**
2031 >     * get(cancelled task) throws CancellationException
2032 >     */
2033 >    public void testGet_cancelled() throws Exception {
2034 >        final ExecutorService e =
2035 >            new ThreadPoolExecutor(1, 1,
2036 >                                   LONG_DELAY_MS, MILLISECONDS,
2037 >                                   new LinkedBlockingQueue<Runnable>());
2038 >        try (PoolCleaner cleaner = cleaner(e)) {
2039 >            final CountDownLatch blockerStarted = new CountDownLatch(1);
2040 >            final CountDownLatch done = new CountDownLatch(1);
2041 >            final List<Future<?>> futures = new ArrayList<>();
2042 >            for (int i = 0; i < 2; i++) {
2043 >                Runnable r = new CheckedRunnable() { public void realRun()
2044 >                                                         throws Throwable {
2045 >                    blockerStarted.countDown();
2046 >                    assertTrue(done.await(2 * LONG_DELAY_MS, MILLISECONDS));
2047 >                }};
2048 >                futures.add(e.submit(r));
2049 >            }
2050 >            assertTrue(blockerStarted.await(LONG_DELAY_MS, MILLISECONDS));
2051 >            for (Future<?> future : futures) future.cancel(false);
2052 >            for (Future<?> future : futures) {
2053 >                try {
2054 >                    future.get();
2055 >                    shouldThrow();
2056 >                } catch (CancellationException success) {}
2057 >                try {
2058 >                    future.get(LONG_DELAY_MS, MILLISECONDS);
2059 >                    shouldThrow();
2060 >                } catch (CancellationException success) {}
2061 >                assertTrue(future.isCancelled());
2062 >                assertTrue(future.isDone());
2063 >            }
2064 >            done.countDown();
2065          }
487        catch (IllegalArgumentException i19){}
2066      }
2067  
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  
2068   }

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