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Comparing jsr166/src/test/tck/ThreadPoolExecutorTest.java (file contents):
Revision 1.7 by dl, Fri Sep 26 15:33:14 2003 UTC vs.
Revision 1.68 by jsr166, Sun Oct 4 01:27:32 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 JSR166TestCase {
38      public static void main(String[] args) {
39 <        junit.textui.TestRunner.run (suite());  
39 >        main(suite(), args);
40      }
41      public static Test suite() {
42          return new TestSuite(ThreadPoolExecutorTest.class);
43      }
44 <    
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 >        }
80 >    }
81  
82      /**
83 <     *   execute successfully executes a runnable
83 >     * execute successfully executes a runnable
84       */
85 <    public void testExecute() {
86 <        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
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 >        final CountDownLatch done = new CountDownLatch(1);
91 >        final Runnable task = new CheckedRunnable() {
92 >            public void realRun() {
93 >                done.countDown();
94 >            }};
95          try {
96 <            p1.execute(new Runnable() {
97 <                    public void run() {
98 <                        try {
99 <                            Thread.sleep(SHORT_DELAY_MS);
100 <                        } catch(InterruptedException e){
32 <                            threadUnexpectedException();
33 <                        }
34 <                    }
35 <                });
36 <            Thread.sleep(SMALL_DELAY_MS);
37 <        } catch(InterruptedException e){
38 <            unexpectedException();
39 <        }
40 <        joinPool(p1);
96 >            p.execute(task);
97 >            assertTrue(done.await(SMALL_DELAY_MS, MILLISECONDS));
98 >        } finally {
99 >            joinPool(p);
100 >        }
101      }
102  
103      /**
104 <     *  getActiveCount increases but doesn't overestimate, when a
105 <     *  thread becomes active
104 >     * getActiveCount increases but doesn't overestimate, when a
105 >     * thread becomes active
106       */
107 <    public void testGetActiveCount() {
108 <        ThreadPoolExecutor p2 = new ThreadPoolExecutor(2, 2, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
109 <        assertEquals(0, p2.getActiveCount());
110 <        p2.execute(new MediumRunnable());
111 <        try {
112 <            Thread.sleep(SHORT_DELAY_MS);
113 <        } catch(Exception e){
114 <            unexpectedException();
107 >    public void testGetActiveCount() throws InterruptedException {
108 >        final ThreadPoolExecutor p =
109 >            new ThreadPoolExecutor(2, 2,
110 >                                   LONG_DELAY_MS, MILLISECONDS,
111 >                                   new ArrayBlockingQueue<Runnable>(10));
112 >        final CountDownLatch threadStarted = new CountDownLatch(1);
113 >        final CountDownLatch done = new CountDownLatch(1);
114 >        try {
115 >            assertEquals(0, p.getActiveCount());
116 >            p.execute(new CheckedRunnable() {
117 >                public void realRun() throws InterruptedException {
118 >                    threadStarted.countDown();
119 >                    assertEquals(1, p.getActiveCount());
120 >                    done.await();
121 >                }});
122 >            assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
123 >            assertEquals(1, p.getActiveCount());
124 >        } finally {
125 >            done.countDown();
126 >            joinPool(p);
127          }
56        assertEquals(1, p2.getActiveCount());
57        joinPool(p2);
128      }
129 <    
129 >
130      /**
131 <     *   getCompletedTaskCount increases, but doesn't overestimate,
62 <     *   when tasks complete
131 >     * prestartCoreThread starts a thread if under corePoolSize, else doesn't
132       */
133 <    public void testGetCompletedTaskCount() {
134 <        ThreadPoolExecutor p2 = new ThreadPoolExecutor(2, 2, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
135 <        assertEquals(0, p2.getCompletedTaskCount());
136 <        p2.execute(new ShortRunnable());
137 <        try {
138 <            Thread.sleep(MEDIUM_DELAY_MS);
139 <        } catch(Exception e){
140 <            unexpectedException();
133 >    public void testPrestartCoreThread() {
134 >        final ThreadPoolExecutor p =
135 >            new ThreadPoolExecutor(2, 6,
136 >                                   LONG_DELAY_MS, MILLISECONDS,
137 >                                   new ArrayBlockingQueue<Runnable>(10));
138 >        try (PoolCleaner cleaner = cleaner(p)) {
139 >            assertEquals(0, p.getPoolSize());
140 >            assertTrue(p.prestartCoreThread());
141 >            assertEquals(1, p.getPoolSize());
142 >            assertTrue(p.prestartCoreThread());
143 >            assertEquals(2, p.getPoolSize());
144 >            assertFalse(p.prestartCoreThread());
145 >            assertEquals(2, p.getPoolSize());
146 >            p.setCorePoolSize(4);
147 >            assertTrue(p.prestartCoreThread());
148 >            assertEquals(3, p.getPoolSize());
149 >            assertTrue(p.prestartCoreThread());
150 >            assertEquals(4, p.getPoolSize());
151 >            assertFalse(p.prestartCoreThread());
152 >            assertEquals(4, p.getPoolSize());
153 >        }
154 >    }
155 >
156 >    /**
157 >     * prestartAllCoreThreads starts all corePoolSize threads
158 >     */
159 >    public void testPrestartAllCoreThreads() {
160 >        final ThreadPoolExecutor p =
161 >            new ThreadPoolExecutor(2, 6,
162 >                                   LONG_DELAY_MS, MILLISECONDS,
163 >                                   new ArrayBlockingQueue<Runnable>(10));
164 >        try (PoolCleaner cleaner = cleaner(p)) {
165 >            assertEquals(0, p.getPoolSize());
166 >            p.prestartAllCoreThreads();
167 >            assertEquals(2, p.getPoolSize());
168 >            p.prestartAllCoreThreads();
169 >            assertEquals(2, p.getPoolSize());
170 >            p.setCorePoolSize(4);
171 >            p.prestartAllCoreThreads();
172 >            assertEquals(4, p.getPoolSize());
173 >            p.prestartAllCoreThreads();
174 >            assertEquals(4, p.getPoolSize());
175 >        }
176 >    }
177 >
178 >    /**
179 >     * getCompletedTaskCount increases, but doesn't overestimate,
180 >     * when tasks complete
181 >     */
182 >    public void testGetCompletedTaskCount() throws InterruptedException {
183 >        final ThreadPoolExecutor p =
184 >            new ThreadPoolExecutor(2, 2,
185 >                                   LONG_DELAY_MS, MILLISECONDS,
186 >                                   new ArrayBlockingQueue<Runnable>(10));
187 >        try (PoolCleaner cleaner = cleaner(p)) {
188 >            final CountDownLatch threadStarted = new CountDownLatch(1);
189 >            final CountDownLatch threadProceed = new CountDownLatch(1);
190 >            final CountDownLatch threadDone = new CountDownLatch(1);
191 >            assertEquals(0, p.getCompletedTaskCount());
192 >            p.execute(new CheckedRunnable() {
193 >                public void realRun() throws InterruptedException {
194 >                    threadStarted.countDown();
195 >                    assertEquals(0, p.getCompletedTaskCount());
196 >                    threadProceed.await();
197 >                    threadDone.countDown();
198 >                }});
199 >            await(threadStarted);
200 >            assertEquals(0, p.getCompletedTaskCount());
201 >            threadProceed.countDown();
202 >            threadDone.await();
203 >            long startTime = System.nanoTime();
204 >            while (p.getCompletedTaskCount() != 1) {
205 >                if (millisElapsedSince(startTime) > LONG_DELAY_MS)
206 >                    fail("timed out");
207 >                Thread.yield();
208 >            }
209          }
73        assertEquals(1, p2.getCompletedTaskCount());
74        p2.shutdown();
75        joinPool(p2);
210      }
211 <    
211 >
212      /**
213 <     *   getCorePoolSize returns size given in constructor if not otherwise set
213 >     * getCorePoolSize returns size given in constructor if not otherwise set
214       */
215      public void testGetCorePoolSize() {
216 <        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
217 <        assertEquals(1, p1.getCorePoolSize());
218 <        joinPool(p1);
216 >        final ThreadPoolExecutor p =
217 >            new ThreadPoolExecutor(1, 1,
218 >                                   LONG_DELAY_MS, MILLISECONDS,
219 >                                   new ArrayBlockingQueue<Runnable>(10));
220 >        assertEquals(1, p.getCorePoolSize());
221 >        joinPool(p);
222      }
223 <    
223 >
224      /**
225 <     *   getKeepAliveTime returns value given in constructor if not otherwise set
225 >     * getKeepAliveTime returns value given in constructor if not otherwise set
226       */
227      public void testGetKeepAliveTime() {
228 <        ThreadPoolExecutor p2 = new ThreadPoolExecutor(2, 2, 1000, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
229 <        assertEquals(1, p2.getKeepAliveTime(TimeUnit.SECONDS));
230 <        joinPool(p2);
231 <    }
232 <    
233 <    /**
97 <     *   getLargestPoolSize increases, but doesn't overestimate, when
98 <     *   multiple threads active
99 <     */
100 <    public void testGetLargestPoolSize() {
101 <        ThreadPoolExecutor p2 = new ThreadPoolExecutor(2, 2, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
102 <        try {
103 <            assertEquals(0, p2.getLargestPoolSize());
104 <            p2.execute(new MediumRunnable());
105 <            p2.execute(new MediumRunnable());
106 <            Thread.sleep(SHORT_DELAY_MS);
107 <            assertEquals(2, p2.getLargestPoolSize());
108 <        } catch(Exception e){
109 <            unexpectedException();
110 <        }
111 <        joinPool(p2);
228 >        final ThreadPoolExecutor p =
229 >            new ThreadPoolExecutor(2, 2,
230 >                                   1000, MILLISECONDS,
231 >                                   new ArrayBlockingQueue<Runnable>(10));
232 >        assertEquals(1, p.getKeepAliveTime(SECONDS));
233 >        joinPool(p);
234      }
235 <    
235 >
236      /**
237 <     *   getMaximumPoolSize returns value given in constructor if not
116 <     *   otherwise set
237 >     * getThreadFactory returns factory in constructor if not set
238       */
239 <    public void testGetMaximumPoolSize() {
240 <        ThreadPoolExecutor p2 = new ThreadPoolExecutor(2, 2, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
241 <        assertEquals(2, p2.getMaximumPoolSize());
242 <        joinPool(p2);
239 >    public void testGetThreadFactory() {
240 >        ThreadFactory tf = new SimpleThreadFactory();
241 >        final ThreadPoolExecutor p =
242 >            new ThreadPoolExecutor(1, 2,
243 >                                   LONG_DELAY_MS, MILLISECONDS,
244 >                                   new ArrayBlockingQueue<Runnable>(10),
245 >                                   tf,
246 >                                   new NoOpREHandler());
247 >        assertSame(tf, p.getThreadFactory());
248 >        joinPool(p);
249      }
250 <    
250 >
251      /**
252 <     *   getPoolSize increases, but doesn't overestimate, when threads
126 <     *   become active
252 >     * setThreadFactory sets the thread factory returned by getThreadFactory
253       */
254 <    public void testGetPoolSize() {
255 <        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
256 <        assertEquals(0, p1.getPoolSize());
257 <        p1.execute(new MediumRunnable());
258 <        assertEquals(1, p1.getPoolSize());
259 <        joinPool(p1);
254 >    public void testSetThreadFactory() {
255 >        final ThreadPoolExecutor p =
256 >            new ThreadPoolExecutor(1, 2,
257 >                                   LONG_DELAY_MS, MILLISECONDS,
258 >                                   new ArrayBlockingQueue<Runnable>(10));
259 >        ThreadFactory tf = new SimpleThreadFactory();
260 >        p.setThreadFactory(tf);
261 >        assertSame(tf, p.getThreadFactory());
262 >        joinPool(p);
263      }
264 <    
264 >
265      /**
266 <     *   getTaskCount increases, but doesn't overestimate, when tasks submitted
266 >     * setThreadFactory(null) throws NPE
267       */
268 <    public void testGetTaskCount() {
269 <        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
268 >    public void testSetThreadFactoryNull() {
269 >        final ThreadPoolExecutor p =
270 >            new ThreadPoolExecutor(1, 2,
271 >                                   LONG_DELAY_MS, MILLISECONDS,
272 >                                   new ArrayBlockingQueue<Runnable>(10));
273          try {
274 <            assertEquals(0, p1.getTaskCount());
275 <            p1.execute(new MediumRunnable());
276 <            Thread.sleep(SHORT_DELAY_MS);
277 <            assertEquals(1, p1.getTaskCount());
278 <        } catch(Exception e){
279 <            unexpectedException();
148 <        }
149 <        joinPool(p1);
274 >            p.setThreadFactory(null);
275 >            shouldThrow();
276 >        } catch (NullPointerException success) {
277 >        } finally {
278 >            joinPool(p);
279 >        }
280      }
281 <    
281 >
282      /**
283 <     *   isShutDown is false before shutdown, true after
283 >     * getRejectedExecutionHandler returns handler in constructor if not set
284       */
285 <    public void testIsShutdown() {
286 <        
287 <        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
288 <        assertFalse(p1.isShutdown());
289 <        p1.shutdown();
290 <        assertTrue(p1.isShutdown());
291 <        joinPool(p1);
285 >    public void testGetRejectedExecutionHandler() {
286 >        final RejectedExecutionHandler h = new NoOpREHandler();
287 >        final ThreadPoolExecutor p =
288 >            new ThreadPoolExecutor(1, 2,
289 >                                   LONG_DELAY_MS, MILLISECONDS,
290 >                                   new ArrayBlockingQueue<Runnable>(10),
291 >                                   h);
292 >        assertSame(h, p.getRejectedExecutionHandler());
293 >        joinPool(p);
294      }
295  
164        
296      /**
297 <     *  isTerminated is false before termination, true after
297 >     * setRejectedExecutionHandler sets the handler returned by
298 >     * getRejectedExecutionHandler
299       */
300 <    public void testIsTerminated() {
301 <        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
302 <        assertFalse(p1.isTerminated());
300 >    public void testSetRejectedExecutionHandler() {
301 >        final ThreadPoolExecutor p =
302 >            new ThreadPoolExecutor(1, 2,
303 >                                   LONG_DELAY_MS, MILLISECONDS,
304 >                                   new ArrayBlockingQueue<Runnable>(10));
305 >        RejectedExecutionHandler h = new NoOpREHandler();
306 >        p.setRejectedExecutionHandler(h);
307 >        assertSame(h, p.getRejectedExecutionHandler());
308 >        joinPool(p);
309 >    }
310 >
311 >    /**
312 >     * setRejectedExecutionHandler(null) throws NPE
313 >     */
314 >    public void testSetRejectedExecutionHandlerNull() {
315 >        final ThreadPoolExecutor p =
316 >            new ThreadPoolExecutor(1, 2,
317 >                                   LONG_DELAY_MS, MILLISECONDS,
318 >                                   new ArrayBlockingQueue<Runnable>(10));
319          try {
320 <            p1.execute(new MediumRunnable());
320 >            p.setRejectedExecutionHandler(null);
321 >            shouldThrow();
322 >        } catch (NullPointerException success) {
323          } finally {
324 <            p1.shutdown();
324 >            joinPool(p);
325          }
176        try {
177            assertTrue(p1.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
178            assertTrue(p1.isTerminated());
179        } catch(Exception e){
180            unexpectedException();
181        }      
326      }
327  
328      /**
329 <     *  isTerminating is not true when running or when terminated
329 >     * getLargestPoolSize increases, but doesn't overestimate, when
330 >     * multiple threads active
331       */
332 <    public void testIsTerminating() {
333 <        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
334 <        assertFalse(p1.isTerminating());
335 <        try {
336 <            p1.execute(new SmallRunnable());
337 <            assertFalse(p1.isTerminating());
332 >    public void testGetLargestPoolSize() throws InterruptedException {
333 >        final int THREADS = 3;
334 >        final ThreadPoolExecutor p =
335 >            new ThreadPoolExecutor(THREADS, THREADS,
336 >                                   LONG_DELAY_MS, MILLISECONDS,
337 >                                   new ArrayBlockingQueue<Runnable>(10));
338 >        final CountDownLatch threadsStarted = new CountDownLatch(THREADS);
339 >        final CountDownLatch done = new CountDownLatch(1);
340 >        try {
341 >            assertEquals(0, p.getLargestPoolSize());
342 >            for (int i = 0; i < THREADS; i++)
343 >                p.execute(new CheckedRunnable() {
344 >                    public void realRun() throws InterruptedException {
345 >                        threadsStarted.countDown();
346 >                        done.await();
347 >                        assertEquals(THREADS, p.getLargestPoolSize());
348 >                    }});
349 >            assertTrue(threadsStarted.await(SMALL_DELAY_MS, MILLISECONDS));
350 >            assertEquals(THREADS, p.getLargestPoolSize());
351          } finally {
352 <            p1.shutdown();
352 >            done.countDown();
353 >            joinPool(p);
354 >            assertEquals(THREADS, p.getLargestPoolSize());
355          }
196        try {
197            assertTrue(p1.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
198            assertTrue(p1.isTerminated());
199            assertFalse(p1.isTerminating());
200        } catch(Exception e){
201            unexpectedException();
202        }      
356      }
357  
358      /**
359 <     *   purge removes cancelled tasks from the queue
359 >     * getMaximumPoolSize returns value given in constructor if not
360 >     * otherwise set
361       */
362 <    public void testPurge() {
363 <        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
364 <        CancellableTask[] tasks = new CancellableTask[5];
365 <        for(int i = 0; i < 5; i++){
366 <            tasks[i] = new CancellableTask(new MediumPossiblyInterruptedRunnable());
367 <            p1.execute(tasks[i]);
362 >    public void testGetMaximumPoolSize() {
363 >        final ThreadPoolExecutor p =
364 >            new ThreadPoolExecutor(2, 3,
365 >                                   LONG_DELAY_MS, MILLISECONDS,
366 >                                   new ArrayBlockingQueue<Runnable>(10));
367 >        assertEquals(3, p.getMaximumPoolSize());
368 >        joinPool(p);
369 >    }
370 >
371 >    /**
372 >     * getPoolSize increases, but doesn't overestimate, when threads
373 >     * become active
374 >     */
375 >    public void testGetPoolSize() throws InterruptedException {
376 >        final ThreadPoolExecutor p =
377 >            new ThreadPoolExecutor(1, 1,
378 >                                   LONG_DELAY_MS, MILLISECONDS,
379 >                                   new ArrayBlockingQueue<Runnable>(10));
380 >        final CountDownLatch threadStarted = new CountDownLatch(1);
381 >        final CountDownLatch done = new CountDownLatch(1);
382 >        try {
383 >            assertEquals(0, p.getPoolSize());
384 >            p.execute(new CheckedRunnable() {
385 >                public void realRun() throws InterruptedException {
386 >                    threadStarted.countDown();
387 >                    assertEquals(1, p.getPoolSize());
388 >                    done.await();
389 >                }});
390 >            assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
391 >            assertEquals(1, p.getPoolSize());
392 >        } finally {
393 >            done.countDown();
394 >            joinPool(p);
395          }
215        tasks[4].cancel(true);
216        tasks[3].cancel(true);
217        p1.purge();
218        long count = p1.getTaskCount();
219        assertTrue(count >= 2 && count < 5);
220        joinPool(p1);
396      }
397  
398      /**
399 <     *  shutDownNow returns a list containing tasks that were not run
399 >     * getTaskCount increases, but doesn't overestimate, when tasks submitted
400       */
401 <    public void testShutDownNow() {
402 <        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
403 <        List l;
404 <        try {
405 <            for(int i = 0; i < 5; i++)
406 <                p1.execute(new MediumPossiblyInterruptedRunnable());
401 >    public void testGetTaskCount() throws InterruptedException {
402 >        final ThreadPoolExecutor p =
403 >            new ThreadPoolExecutor(1, 1,
404 >                                   LONG_DELAY_MS, MILLISECONDS,
405 >                                   new ArrayBlockingQueue<Runnable>(10));
406 >        final CountDownLatch threadStarted = new CountDownLatch(1);
407 >        final CountDownLatch done = new CountDownLatch(1);
408 >        try {
409 >            assertEquals(0, p.getTaskCount());
410 >            p.execute(new CheckedRunnable() {
411 >                public void realRun() throws InterruptedException {
412 >                    threadStarted.countDown();
413 >                    assertEquals(1, p.getTaskCount());
414 >                    done.await();
415 >                }});
416 >            assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
417 >            assertEquals(1, p.getTaskCount());
418 >        } finally {
419 >            done.countDown();
420 >            joinPool(p);
421 >        }
422 >    }
423 >
424 >    /**
425 >     * isShutdown is false before shutdown, true after
426 >     */
427 >    public void testIsShutdown() {
428 >        final ThreadPoolExecutor p =
429 >            new ThreadPoolExecutor(1, 1,
430 >                                   LONG_DELAY_MS, MILLISECONDS,
431 >                                   new ArrayBlockingQueue<Runnable>(10));
432 >        assertFalse(p.isShutdown());
433 >        try { p.shutdown(); } catch (SecurityException ok) { return; }
434 >        assertTrue(p.isShutdown());
435 >        joinPool(p);
436 >    }
437 >
438 >    /**
439 >     * awaitTermination on a non-shutdown pool times out
440 >     */
441 >    public void testAwaitTermination_timesOut() throws InterruptedException {
442 >        final ThreadPoolExecutor p =
443 >            new ThreadPoolExecutor(1, 1,
444 >                                   LONG_DELAY_MS, MILLISECONDS,
445 >                                   new ArrayBlockingQueue<Runnable>(10));
446 >        assertFalse(p.isTerminated());
447 >        assertFalse(p.awaitTermination(Long.MIN_VALUE, NANOSECONDS));
448 >        assertFalse(p.awaitTermination(Long.MIN_VALUE, MILLISECONDS));
449 >        assertFalse(p.awaitTermination(-1L, NANOSECONDS));
450 >        assertFalse(p.awaitTermination(-1L, MILLISECONDS));
451 >        assertFalse(p.awaitTermination(0L, NANOSECONDS));
452 >        assertFalse(p.awaitTermination(0L, MILLISECONDS));
453 >        long timeoutNanos = 999999L;
454 >        long startTime = System.nanoTime();
455 >        assertFalse(p.awaitTermination(timeoutNanos, NANOSECONDS));
456 >        assertTrue(System.nanoTime() - startTime >= timeoutNanos);
457 >        assertFalse(p.isTerminated());
458 >        startTime = System.nanoTime();
459 >        long timeoutMillis = timeoutMillis();
460 >        assertFalse(p.awaitTermination(timeoutMillis, MILLISECONDS));
461 >        assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
462 >        assertFalse(p.isTerminated());
463 >        p.shutdown();
464 >        assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
465 >        assertTrue(p.isTerminated());
466 >    }
467 >
468 >    /**
469 >     * isTerminated is false before termination, true after
470 >     */
471 >    public void testIsTerminated() throws InterruptedException {
472 >        final ThreadPoolExecutor p =
473 >            new ThreadPoolExecutor(1, 1,
474 >                                   LONG_DELAY_MS, MILLISECONDS,
475 >                                   new ArrayBlockingQueue<Runnable>(10));
476 >        final CountDownLatch threadStarted = new CountDownLatch(1);
477 >        final CountDownLatch done = new CountDownLatch(1);
478 >        assertFalse(p.isTerminated());
479 >        try {
480 >            p.execute(new CheckedRunnable() {
481 >                public void realRun() throws InterruptedException {
482 >                    assertFalse(p.isTerminated());
483 >                    threadStarted.countDown();
484 >                    done.await();
485 >                }});
486 >            assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
487 >            assertFalse(p.isTerminating());
488 >            done.countDown();
489 >        } finally {
490 >            try { p.shutdown(); } catch (SecurityException ok) { return; }
491 >        }
492 >        assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
493 >        assertTrue(p.isTerminated());
494 >    }
495 >
496 >    /**
497 >     * isTerminating is not true when running or when terminated
498 >     */
499 >    public void testIsTerminating() throws InterruptedException {
500 >        final ThreadPoolExecutor p =
501 >            new ThreadPoolExecutor(1, 1,
502 >                                   LONG_DELAY_MS, MILLISECONDS,
503 >                                   new ArrayBlockingQueue<Runnable>(10));
504 >        final CountDownLatch threadStarted = new CountDownLatch(1);
505 >        final CountDownLatch done = new CountDownLatch(1);
506 >        try {
507 >            assertFalse(p.isTerminating());
508 >            p.execute(new CheckedRunnable() {
509 >                public void realRun() throws InterruptedException {
510 >                    assertFalse(p.isTerminating());
511 >                    threadStarted.countDown();
512 >                    done.await();
513 >                }});
514 >            assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
515 >            assertFalse(p.isTerminating());
516 >            done.countDown();
517 >        } finally {
518 >            try { p.shutdown(); } catch (SecurityException ok) { return; }
519 >        }
520 >        assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
521 >        assertTrue(p.isTerminated());
522 >        assertFalse(p.isTerminating());
523 >    }
524 >
525 >    /**
526 >     * getQueue returns the work queue, which contains queued tasks
527 >     */
528 >    public void testGetQueue() throws InterruptedException {
529 >        final BlockingQueue<Runnable> q = new ArrayBlockingQueue<Runnable>(10);
530 >        final ThreadPoolExecutor p =
531 >            new ThreadPoolExecutor(1, 1,
532 >                                   LONG_DELAY_MS, MILLISECONDS,
533 >                                   q);
534 >        final CountDownLatch threadStarted = new CountDownLatch(1);
535 >        final CountDownLatch done = new CountDownLatch(1);
536 >        try {
537 >            FutureTask[] tasks = new FutureTask[5];
538 >            for (int i = 0; i < tasks.length; i++) {
539 >                Callable task = new CheckedCallable<Boolean>() {
540 >                    public Boolean realCall() throws InterruptedException {
541 >                        threadStarted.countDown();
542 >                        assertSame(q, p.getQueue());
543 >                        done.await();
544 >                        return Boolean.TRUE;
545 >                    }};
546 >                tasks[i] = new FutureTask(task);
547 >                p.execute(tasks[i]);
548 >            }
549 >            assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
550 >            assertSame(q, p.getQueue());
551 >            assertFalse(q.contains(tasks[0]));
552 >            assertTrue(q.contains(tasks[tasks.length - 1]));
553 >            assertEquals(tasks.length - 1, q.size());
554 >        } finally {
555 >            done.countDown();
556 >            joinPool(p);
557          }
558 <        finally {
559 <            l = p1.shutdownNow();
558 >    }
559 >
560 >    /**
561 >     * remove(task) removes queued task, and fails to remove active task
562 >     */
563 >    public void testRemove() throws InterruptedException {
564 >        BlockingQueue<Runnable> q = new ArrayBlockingQueue<Runnable>(10);
565 >        final ThreadPoolExecutor p =
566 >            new ThreadPoolExecutor(1, 1,
567 >                                   LONG_DELAY_MS, MILLISECONDS,
568 >                                   q);
569 >        Runnable[] tasks = new Runnable[5];
570 >        final CountDownLatch threadStarted = new CountDownLatch(1);
571 >        final CountDownLatch done = new CountDownLatch(1);
572 >        try {
573 >            for (int i = 0; i < tasks.length; i++) {
574 >                tasks[i] = new CheckedRunnable() {
575 >                    public void realRun() throws InterruptedException {
576 >                        threadStarted.countDown();
577 >                        done.await();
578 >                    }};
579 >                p.execute(tasks[i]);
580 >            }
581 >            assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
582 >            assertFalse(p.remove(tasks[0]));
583 >            assertTrue(q.contains(tasks[4]));
584 >            assertTrue(q.contains(tasks[3]));
585 >            assertTrue(p.remove(tasks[4]));
586 >            assertFalse(p.remove(tasks[4]));
587 >            assertFalse(q.contains(tasks[4]));
588 >            assertTrue(q.contains(tasks[3]));
589 >            assertTrue(p.remove(tasks[3]));
590 >            assertFalse(q.contains(tasks[3]));
591 >        } finally {
592 >            done.countDown();
593 >            joinPool(p);
594          }
595 <        assertTrue(p1.isShutdown());
596 <        assertTrue(l.size() <= 4);
595 >    }
596 >
597 >    /**
598 >     * purge removes cancelled tasks from the queue
599 >     */
600 >    public void testPurge() throws InterruptedException {
601 >        final CountDownLatch threadStarted = new CountDownLatch(1);
602 >        final CountDownLatch done = new CountDownLatch(1);
603 >        final BlockingQueue<Runnable> q = new ArrayBlockingQueue<Runnable>(10);
604 >        final ThreadPoolExecutor p =
605 >            new ThreadPoolExecutor(1, 1,
606 >                                   LONG_DELAY_MS, MILLISECONDS,
607 >                                   q);
608 >        FutureTask[] tasks = new FutureTask[5];
609 >        try {
610 >            for (int i = 0; i < tasks.length; i++) {
611 >                Callable task = new CheckedCallable<Boolean>() {
612 >                    public Boolean realCall() throws InterruptedException {
613 >                        threadStarted.countDown();
614 >                        done.await();
615 >                        return Boolean.TRUE;
616 >                    }};
617 >                tasks[i] = new FutureTask(task);
618 >                p.execute(tasks[i]);
619 >            }
620 >            assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
621 >            assertEquals(tasks.length, p.getTaskCount());
622 >            assertEquals(tasks.length - 1, q.size());
623 >            assertEquals(1L, p.getActiveCount());
624 >            assertEquals(0L, p.getCompletedTaskCount());
625 >            tasks[4].cancel(true);
626 >            tasks[3].cancel(false);
627 >            p.purge();
628 >            assertEquals(tasks.length - 3, q.size());
629 >            assertEquals(tasks.length - 2, p.getTaskCount());
630 >            p.purge();         // Nothing to do
631 >            assertEquals(tasks.length - 3, q.size());
632 >            assertEquals(tasks.length - 2, p.getTaskCount());
633 >        } finally {
634 >            done.countDown();
635 >            joinPool(p);
636 >        }
637 >    }
638 >
639 >    /**
640 >     * shutdownNow returns a list containing tasks that were not run,
641 >     * and those tasks are drained from the queue
642 >     */
643 >    public void testShutdownNow() throws InterruptedException {
644 >        final int poolSize = 2;
645 >        final int count = 5;
646 >        final AtomicInteger ran = new AtomicInteger(0);
647 >        final ThreadPoolExecutor p =
648 >            new ThreadPoolExecutor(poolSize, poolSize,
649 >                                   LONG_DELAY_MS, MILLISECONDS,
650 >                                   new ArrayBlockingQueue<Runnable>(10));
651 >        CountDownLatch threadsStarted = new CountDownLatch(poolSize);
652 >        Runnable waiter = new CheckedRunnable() { public void realRun() {
653 >            threadsStarted.countDown();
654 >            try {
655 >                MILLISECONDS.sleep(2 * LONG_DELAY_MS);
656 >            } catch (InterruptedException success) {}
657 >            ran.getAndIncrement();
658 >        }};
659 >        for (int i = 0; i < count; i++)
660 >            p.execute(waiter);
661 >        assertTrue(threadsStarted.await(LONG_DELAY_MS, MILLISECONDS));
662 >        assertEquals(poolSize, p.getActiveCount());
663 >        assertEquals(0, p.getCompletedTaskCount());
664 >        final List<Runnable> queuedTasks;
665 >        try {
666 >            queuedTasks = p.shutdownNow();
667 >        } catch (SecurityException ok) {
668 >            return; // Allowed in case test doesn't have privs
669 >        }
670 >        assertTrue(p.isShutdown());
671 >        assertTrue(p.getQueue().isEmpty());
672 >        assertEquals(count - poolSize, queuedTasks.size());
673 >        assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
674 >        assertTrue(p.isTerminated());
675 >        assertEquals(poolSize, ran.get());
676 >        assertEquals(poolSize, p.getCompletedTaskCount());
677      }
678  
679      // Exception Tests
241    
680  
681 <    /**
682 <     * Constructor throws if corePoolSize argument is less than zero
681 >    /**
682 >     * Constructor throws if corePoolSize argument is less than zero
683       */
684      public void testConstructor1() {
685          try {
686 <            new ThreadPoolExecutor(-1,1,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
686 >            new ThreadPoolExecutor(-1, 1, 1L, SECONDS,
687 >                                   new ArrayBlockingQueue<Runnable>(10));
688              shouldThrow();
689 <        }
251 <        catch (IllegalArgumentException success){}
689 >        } catch (IllegalArgumentException success) {}
690      }
691 <    
692 <    /**
693 <     * Constructor throws if maximumPoolSize is less than zero
691 >
692 >    /**
693 >     * Constructor throws if maximumPoolSize is less than zero
694       */
695      public void testConstructor2() {
696          try {
697 <            new ThreadPoolExecutor(1,-1,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
697 >            new ThreadPoolExecutor(1, -1, 1L, SECONDS,
698 >                                   new ArrayBlockingQueue<Runnable>(10));
699              shouldThrow();
700 <        }
262 <        catch (IllegalArgumentException success){}
700 >        } catch (IllegalArgumentException success) {}
701      }
702 <    
703 <    /**
704 <     * Constructor throws if maximumPoolSize is equal to zero
702 >
703 >    /**
704 >     * Constructor throws if maximumPoolSize is equal to zero
705       */
706      public void testConstructor3() {
707          try {
708 <            new ThreadPoolExecutor(1,0,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
708 >            new ThreadPoolExecutor(1, 0, 1L, SECONDS,
709 >                                   new ArrayBlockingQueue<Runnable>(10));
710              shouldThrow();
711 <        }
273 <        catch (IllegalArgumentException success){}
711 >        } catch (IllegalArgumentException success) {}
712      }
713  
714 <    /**
715 <     * Constructor throws if keepAliveTime is less than zero
714 >    /**
715 >     * Constructor throws if keepAliveTime is less than zero
716       */
717      public void testConstructor4() {
718          try {
719 <            new ThreadPoolExecutor(1,2,-1L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
719 >            new ThreadPoolExecutor(1, 2, -1L, SECONDS,
720 >                                   new ArrayBlockingQueue<Runnable>(10));
721              shouldThrow();
722 <        }
284 <        catch (IllegalArgumentException success){}
722 >        } catch (IllegalArgumentException success) {}
723      }
724  
725 <    /**
726 <     * Constructor throws if corePoolSize is greater than the maximumPoolSize
725 >    /**
726 >     * Constructor throws if corePoolSize is greater than the maximumPoolSize
727       */
728      public void testConstructor5() {
729          try {
730 <            new ThreadPoolExecutor(2,1,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
730 >            new ThreadPoolExecutor(2, 1, 1L, SECONDS,
731 >                                   new ArrayBlockingQueue<Runnable>(10));
732              shouldThrow();
733 <        }
295 <        catch (IllegalArgumentException success){}
733 >        } catch (IllegalArgumentException success) {}
734      }
735 <        
736 <    /**
737 <     * Constructor throws if workQueue is set to null
735 >
736 >    /**
737 >     * Constructor throws if workQueue is set to null
738       */
739 <    public void testNullPointerException() {
739 >    public void testConstructorNullPointerException() {
740          try {
741 <            new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,null);
741 >            new ThreadPoolExecutor(1, 2, 1L, SECONDS,
742 >                                   (BlockingQueue) null);
743              shouldThrow();
744 <        }
306 <        catch (NullPointerException success){}  
744 >        } catch (NullPointerException success) {}
745      }
308    
746  
747 <    
748 <    /**
312 <     * Constructor throws if corePoolSize argument is less than zero
747 >    /**
748 >     * Constructor throws if corePoolSize argument is less than zero
749       */
750      public void testConstructor6() {
751          try {
752 <            new ThreadPoolExecutor(-1,1,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new SimpleThreadFactory());
752 >            new ThreadPoolExecutor(-1, 1, 1L, SECONDS,
753 >                                   new ArrayBlockingQueue<Runnable>(10),
754 >                                   new SimpleThreadFactory());
755              shouldThrow();
756 <        } catch (IllegalArgumentException success){}
756 >        } catch (IllegalArgumentException success) {}
757      }
758 <    
759 <    /**
760 <     * Constructor throws if maximumPoolSize is less than zero
758 >
759 >    /**
760 >     * Constructor throws if maximumPoolSize is less than zero
761       */
762      public void testConstructor7() {
763          try {
764 <            new ThreadPoolExecutor(1,-1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new SimpleThreadFactory());
764 >            new ThreadPoolExecutor(1, -1, 1L, SECONDS,
765 >                                   new ArrayBlockingQueue<Runnable>(10),
766 >                                   new SimpleThreadFactory());
767              shouldThrow();
768 <        }
329 <        catch (IllegalArgumentException success){}
768 >        } catch (IllegalArgumentException success) {}
769      }
770  
771 <    /**
772 <     * Constructor throws if maximumPoolSize is equal to zero
771 >    /**
772 >     * Constructor throws if maximumPoolSize is equal to zero
773       */
774      public void testConstructor8() {
775          try {
776 <            new ThreadPoolExecutor(1,0,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new SimpleThreadFactory());
776 >            new ThreadPoolExecutor(1, 0, 1L, SECONDS,
777 >                                   new ArrayBlockingQueue<Runnable>(10),
778 >                                   new SimpleThreadFactory());
779              shouldThrow();
780 <        }
340 <        catch (IllegalArgumentException success){}
780 >        } catch (IllegalArgumentException success) {}
781      }
782  
783 <    /**
784 <     * Constructor throws if keepAliveTime is less than zero
783 >    /**
784 >     * Constructor throws if keepAliveTime is less than zero
785       */
786      public void testConstructor9() {
787          try {
788 <            new ThreadPoolExecutor(1,2,-1L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new SimpleThreadFactory());
788 >            new ThreadPoolExecutor(1, 2, -1L, SECONDS,
789 >                                   new ArrayBlockingQueue<Runnable>(10),
790 >                                   new SimpleThreadFactory());
791              shouldThrow();
792 <        }
351 <        catch (IllegalArgumentException success){}
792 >        } catch (IllegalArgumentException success) {}
793      }
794  
795 <    /**
796 <     * Constructor throws if corePoolSize is greater than the maximumPoolSize
795 >    /**
796 >     * Constructor throws if corePoolSize is greater than the maximumPoolSize
797       */
798      public void testConstructor10() {
799          try {
800 <            new ThreadPoolExecutor(2,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new SimpleThreadFactory());
800 >            new ThreadPoolExecutor(2, 1, 1L, SECONDS,
801 >                                   new ArrayBlockingQueue<Runnable>(10),
802 >                                   new SimpleThreadFactory());
803              shouldThrow();
804 <        }
362 <        catch (IllegalArgumentException success){}
804 >        } catch (IllegalArgumentException success) {}
805      }
806  
807 <    /**
808 <     * Constructor throws if workQueue is set to null
807 >    /**
808 >     * Constructor throws if workQueue is set to null
809       */
810 <    public void testNullPointerException2() {
810 >    public void testConstructorNullPointerException2() {
811          try {
812 <            new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,null,new SimpleThreadFactory());
812 >            new ThreadPoolExecutor(1, 2, 1L, SECONDS,
813 >                                   (BlockingQueue) null,
814 >                                   new SimpleThreadFactory());
815              shouldThrow();
816 <        }
373 <        catch (NullPointerException success){}  
816 >        } catch (NullPointerException success) {}
817      }
818  
819 <    /**
820 <     * Constructor throws if threadFactory is set to null
819 >    /**
820 >     * Constructor throws if threadFactory is set to null
821       */
822 <    public void testNullPointerException3() {
822 >    public void testConstructorNullPointerException3() {
823          try {
824 <            ThreadFactory f = null;
825 <            new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10),f);
824 >            new ThreadPoolExecutor(1, 2, 1L, SECONDS,
825 >                                   new ArrayBlockingQueue<Runnable>(10),
826 >                                   (ThreadFactory) null);
827              shouldThrow();
828 <        }
385 <        catch (NullPointerException success){}  
828 >        } catch (NullPointerException success) {}
829      }
830 <
831 <    
832 <    /**
390 <     * Constructor throws if corePoolSize argument is less than zero
830 >
831 >    /**
832 >     * Constructor throws if corePoolSize argument is less than zero
833       */
834      public void testConstructor11() {
835          try {
836 <            new ThreadPoolExecutor(-1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new NoOpREHandler());
836 >            new ThreadPoolExecutor(-1, 1, 1L, SECONDS,
837 >                                   new ArrayBlockingQueue<Runnable>(10),
838 >                                   new NoOpREHandler());
839              shouldThrow();
840 <        }
397 <        catch (IllegalArgumentException success){}
840 >        } catch (IllegalArgumentException success) {}
841      }
842  
843 <    /**
844 <     * Constructor throws if maximumPoolSize is less than zero
843 >    /**
844 >     * Constructor throws if maximumPoolSize is less than zero
845       */
846      public void testConstructor12() {
847          try {
848 <            new ThreadPoolExecutor(1,-1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new NoOpREHandler());
848 >            new ThreadPoolExecutor(1, -1, 1L, SECONDS,
849 >                                   new ArrayBlockingQueue<Runnable>(10),
850 >                                   new NoOpREHandler());
851              shouldThrow();
852 <        }
408 <        catch (IllegalArgumentException success){}
852 >        } catch (IllegalArgumentException success) {}
853      }
854  
855 <    /**
856 <     * Constructor throws if maximumPoolSize is equal to zero
855 >    /**
856 >     * Constructor throws if maximumPoolSize is equal to zero
857       */
858      public void testConstructor13() {
859          try {
860 <            new ThreadPoolExecutor(1,0,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new NoOpREHandler());
860 >            new ThreadPoolExecutor(1, 0, 1L, SECONDS,
861 >                                   new ArrayBlockingQueue<Runnable>(10),
862 >                                   new NoOpREHandler());
863              shouldThrow();
864 <        }
419 <        catch (IllegalArgumentException success){}
864 >        } catch (IllegalArgumentException success) {}
865      }
866  
867 <    /**
868 <     * Constructor throws if keepAliveTime is less than zero
867 >    /**
868 >     * Constructor throws if keepAliveTime is less than zero
869       */
870      public void testConstructor14() {
871          try {
872 <            new ThreadPoolExecutor(1,2,-1L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new NoOpREHandler());
872 >            new ThreadPoolExecutor(1, 2, -1L, SECONDS,
873 >                                   new ArrayBlockingQueue<Runnable>(10),
874 >                                   new NoOpREHandler());
875              shouldThrow();
876 <        }
430 <        catch (IllegalArgumentException success){}
876 >        } catch (IllegalArgumentException success) {}
877      }
878  
879 <    /**
880 <     * Constructor throws if corePoolSize is greater than the maximumPoolSize
879 >    /**
880 >     * Constructor throws if corePoolSize is greater than the maximumPoolSize
881       */
882      public void testConstructor15() {
883          try {
884 <            new ThreadPoolExecutor(2,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new NoOpREHandler());
884 >            new ThreadPoolExecutor(2, 1, 1L, SECONDS,
885 >                                   new ArrayBlockingQueue<Runnable>(10),
886 >                                   new NoOpREHandler());
887 >            shouldThrow();
888 >        } catch (IllegalArgumentException success) {}
889 >    }
890 >
891 >    /**
892 >     * Constructor throws if workQueue is set to null
893 >     */
894 >    public void testConstructorNullPointerException4() {
895 >        try {
896 >            new ThreadPoolExecutor(1, 2, 1L, SECONDS,
897 >                                   (BlockingQueue) null,
898 >                                   new NoOpREHandler());
899 >            shouldThrow();
900 >        } catch (NullPointerException success) {}
901 >    }
902 >
903 >    /**
904 >     * Constructor throws if handler is set to null
905 >     */
906 >    public void testConstructorNullPointerException5() {
907 >        try {
908 >            new ThreadPoolExecutor(1, 2, 1L, SECONDS,
909 >                                   new ArrayBlockingQueue<Runnable>(10),
910 >                                   (RejectedExecutionHandler) null);
911              shouldThrow();
912 +        } catch (NullPointerException success) {}
913 +    }
914 +
915 +    /**
916 +     * Constructor throws if corePoolSize argument is less than zero
917 +     */
918 +    public void testConstructor16() {
919 +        try {
920 +            new ThreadPoolExecutor(-1, 1, 1L, SECONDS,
921 +                                   new ArrayBlockingQueue<Runnable>(10),
922 +                                   new SimpleThreadFactory(),
923 +                                   new NoOpREHandler());
924 +            shouldThrow();
925 +        } catch (IllegalArgumentException success) {}
926 +    }
927 +
928 +    /**
929 +     * Constructor throws if maximumPoolSize is less than zero
930 +     */
931 +    public void testConstructor17() {
932 +        try {
933 +            new ThreadPoolExecutor(1, -1, 1L, SECONDS,
934 +                                   new ArrayBlockingQueue<Runnable>(10),
935 +                                   new SimpleThreadFactory(),
936 +                                   new NoOpREHandler());
937 +            shouldThrow();
938 +        } catch (IllegalArgumentException success) {}
939 +    }
940 +
941 +    /**
942 +     * Constructor throws if maximumPoolSize is equal to zero
943 +     */
944 +    public void testConstructor18() {
945 +        try {
946 +            new ThreadPoolExecutor(1, 0, 1L, SECONDS,
947 +                                   new ArrayBlockingQueue<Runnable>(10),
948 +                                   new SimpleThreadFactory(),
949 +                                   new NoOpREHandler());
950 +            shouldThrow();
951 +        } catch (IllegalArgumentException success) {}
952 +    }
953 +
954 +    /**
955 +     * Constructor throws if keepAliveTime is less than zero
956 +     */
957 +    public void testConstructor19() {
958 +        try {
959 +            new ThreadPoolExecutor(1, 2, -1L, SECONDS,
960 +                                   new ArrayBlockingQueue<Runnable>(10),
961 +                                   new SimpleThreadFactory(),
962 +                                   new NoOpREHandler());
963 +            shouldThrow();
964 +        } catch (IllegalArgumentException success) {}
965 +    }
966 +
967 +    /**
968 +     * Constructor throws if corePoolSize is greater than the maximumPoolSize
969 +     */
970 +    public void testConstructor20() {
971 +        try {
972 +            new ThreadPoolExecutor(2, 1, 1L, SECONDS,
973 +                                   new ArrayBlockingQueue<Runnable>(10),
974 +                                   new SimpleThreadFactory(),
975 +                                   new NoOpREHandler());
976 +            shouldThrow();
977 +        } catch (IllegalArgumentException success) {}
978 +    }
979 +
980 +    /**
981 +     * Constructor throws if workQueue is null
982 +     */
983 +    public void testConstructorNullPointerException6() {
984 +        try {
985 +            new ThreadPoolExecutor(1, 2, 1L, SECONDS,
986 +                                   (BlockingQueue) null,
987 +                                   new SimpleThreadFactory(),
988 +                                   new NoOpREHandler());
989 +            shouldThrow();
990 +        } catch (NullPointerException success) {}
991 +    }
992 +
993 +    /**
994 +     * Constructor throws if handler is null
995 +     */
996 +    public void testConstructorNullPointerException7() {
997 +        try {
998 +            new ThreadPoolExecutor(1, 2, 1L, SECONDS,
999 +                                   new ArrayBlockingQueue<Runnable>(10),
1000 +                                   new SimpleThreadFactory(),
1001 +                                   (RejectedExecutionHandler) null);
1002 +            shouldThrow();
1003 +        } catch (NullPointerException success) {}
1004 +    }
1005 +
1006 +    /**
1007 +     * Constructor throws if ThreadFactory is null
1008 +     */
1009 +    public void testConstructorNullPointerException8() {
1010 +        try {
1011 +            new ThreadPoolExecutor(1, 2, 1L, SECONDS,
1012 +                                   new ArrayBlockingQueue<Runnable>(10),
1013 +                                   (ThreadFactory) null,
1014 +                                   new NoOpREHandler());
1015 +            shouldThrow();
1016 +        } catch (NullPointerException success) {}
1017 +    }
1018 +
1019 +    /**
1020 +     * get of submitted callable throws InterruptedException if interrupted
1021 +     */
1022 +    public void testInterruptedSubmit() throws InterruptedException {
1023 +        final ThreadPoolExecutor p =
1024 +            new ThreadPoolExecutor(1, 1,
1025 +                                   60, SECONDS,
1026 +                                   new ArrayBlockingQueue<Runnable>(10));
1027 +
1028 +        final CountDownLatch threadStarted = new CountDownLatch(1);
1029 +        final CountDownLatch done = new CountDownLatch(1);
1030 +        try {
1031 +            Thread t = newStartedThread(new CheckedInterruptedRunnable() {
1032 +                public void realRun() throws Exception {
1033 +                    Callable task = new CheckedCallable<Boolean>() {
1034 +                        public Boolean realCall() throws InterruptedException {
1035 +                            threadStarted.countDown();
1036 +                            done.await();
1037 +                            return Boolean.TRUE;
1038 +                        }};
1039 +                    p.submit(task).get();
1040 +                }});
1041 +
1042 +            assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
1043 +            t.interrupt();
1044 +            awaitTermination(t, MEDIUM_DELAY_MS);
1045 +        } finally {
1046 +            done.countDown();
1047 +            joinPool(p);
1048 +        }
1049 +    }
1050 +
1051 +    /**
1052 +     * execute throws RejectedExecutionException if saturated.
1053 +     */
1054 +    public void testSaturatedExecute() {
1055 +        ThreadPoolExecutor p =
1056 +            new ThreadPoolExecutor(1, 1,
1057 +                                   LONG_DELAY_MS, MILLISECONDS,
1058 +                                   new ArrayBlockingQueue<Runnable>(1));
1059 +        final CountDownLatch done = new CountDownLatch(1);
1060 +        try {
1061 +            Runnable task = new CheckedRunnable() {
1062 +                public void realRun() throws InterruptedException {
1063 +                    done.await();
1064 +                }};
1065 +            for (int i = 0; i < 2; ++i)
1066 +                p.execute(task);
1067 +            for (int i = 0; i < 2; ++i) {
1068 +                try {
1069 +                    p.execute(task);
1070 +                    shouldThrow();
1071 +                } catch (RejectedExecutionException success) {}
1072 +                assertTrue(p.getTaskCount() <= 2);
1073 +            }
1074 +        } finally {
1075 +            done.countDown();
1076 +            joinPool(p);
1077 +        }
1078 +    }
1079 +
1080 +    /**
1081 +     * submit(runnable) throws RejectedExecutionException if saturated.
1082 +     */
1083 +    public void testSaturatedSubmitRunnable() {
1084 +        ThreadPoolExecutor p =
1085 +            new ThreadPoolExecutor(1, 1,
1086 +                                   LONG_DELAY_MS, MILLISECONDS,
1087 +                                   new ArrayBlockingQueue<Runnable>(1));
1088 +        final CountDownLatch done = new CountDownLatch(1);
1089 +        try {
1090 +            Runnable task = new CheckedRunnable() {
1091 +                public void realRun() throws InterruptedException {
1092 +                    done.await();
1093 +                }};
1094 +            for (int i = 0; i < 2; ++i)
1095 +                p.submit(task);
1096 +            for (int i = 0; i < 2; ++i) {
1097 +                try {
1098 +                    p.execute(task);
1099 +                    shouldThrow();
1100 +                } catch (RejectedExecutionException success) {}
1101 +                assertTrue(p.getTaskCount() <= 2);
1102 +            }
1103 +        } finally {
1104 +            done.countDown();
1105 +            joinPool(p);
1106          }
441        catch (IllegalArgumentException success){}
1107      }
1108  
1109 <    /**
1110 <     * Constructor throws if workQueue is set to null
1109 >    /**
1110 >     * submit(callable) throws RejectedExecutionException if saturated.
1111 >     */
1112 >    public void testSaturatedSubmitCallable() {
1113 >        ThreadPoolExecutor p =
1114 >            new ThreadPoolExecutor(1, 1,
1115 >                                   LONG_DELAY_MS, MILLISECONDS,
1116 >                                   new ArrayBlockingQueue<Runnable>(1));
1117 >        final CountDownLatch done = new CountDownLatch(1);
1118 >        try {
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 >        } finally {
1133 >            done.countDown();
1134 >            joinPool(p);
1135 >        }
1136 >    }
1137 >
1138 >    /**
1139 >     * executor using CallerRunsPolicy runs task if saturated.
1140       */
1141 <    public void testNullPointerException4() {
1141 >    public void testSaturatedExecute2() {
1142 >        RejectedExecutionHandler h = new ThreadPoolExecutor.CallerRunsPolicy();
1143 >        final ThreadPoolExecutor p =
1144 >            new ThreadPoolExecutor(1, 1,
1145 >                                   LONG_DELAY_MS,
1146 >                                   MILLISECONDS,
1147 >                                   new ArrayBlockingQueue<Runnable>(1),
1148 >                                   h);
1149 >        try {
1150 >            TrackedNoOpRunnable[] tasks = new TrackedNoOpRunnable[5];
1151 >            for (int i = 0; i < tasks.length; ++i)
1152 >                tasks[i] = new TrackedNoOpRunnable();
1153 >            TrackedLongRunnable mr = new TrackedLongRunnable();
1154 >            p.execute(mr);
1155 >            for (int i = 0; i < tasks.length; ++i)
1156 >                p.execute(tasks[i]);
1157 >            for (int i = 1; i < tasks.length; ++i)
1158 >                assertTrue(tasks[i].done);
1159 >            try { p.shutdownNow(); } catch (SecurityException ok) { return; }
1160 >        } finally {
1161 >            joinPool(p);
1162 >        }
1163 >    }
1164 >
1165 >    /**
1166 >     * executor using DiscardPolicy drops task if saturated.
1167 >     */
1168 >    public void testSaturatedExecute3() {
1169 >        RejectedExecutionHandler h = new ThreadPoolExecutor.DiscardPolicy();
1170 >        final ThreadPoolExecutor p =
1171 >            new ThreadPoolExecutor(1, 1,
1172 >                                   LONG_DELAY_MS, MILLISECONDS,
1173 >                                   new ArrayBlockingQueue<Runnable>(1),
1174 >                                   h);
1175 >        try {
1176 >            TrackedNoOpRunnable[] tasks = new TrackedNoOpRunnable[5];
1177 >            for (int i = 0; i < tasks.length; ++i)
1178 >                tasks[i] = new TrackedNoOpRunnable();
1179 >            p.execute(new TrackedLongRunnable());
1180 >            for (TrackedNoOpRunnable task : tasks)
1181 >                p.execute(task);
1182 >            for (TrackedNoOpRunnable task : tasks)
1183 >                assertFalse(task.done);
1184 >            try { p.shutdownNow(); } catch (SecurityException ok) { return; }
1185 >        } finally {
1186 >            joinPool(p);
1187 >        }
1188 >    }
1189 >
1190 >    /**
1191 >     * executor using DiscardOldestPolicy drops oldest task if saturated.
1192 >     */
1193 >    public void testSaturatedExecute4() {
1194 >        RejectedExecutionHandler h = new ThreadPoolExecutor.DiscardOldestPolicy();
1195 >        final ThreadPoolExecutor p =
1196 >            new ThreadPoolExecutor(1, 1,
1197 >                                   LONG_DELAY_MS, MILLISECONDS,
1198 >                                   new ArrayBlockingQueue<Runnable>(1),
1199 >                                   h);
1200 >        try {
1201 >            p.execute(new TrackedLongRunnable());
1202 >            TrackedLongRunnable r2 = new TrackedLongRunnable();
1203 >            p.execute(r2);
1204 >            assertTrue(p.getQueue().contains(r2));
1205 >            TrackedNoOpRunnable r3 = new TrackedNoOpRunnable();
1206 >            p.execute(r3);
1207 >            assertFalse(p.getQueue().contains(r2));
1208 >            assertTrue(p.getQueue().contains(r3));
1209 >            try { p.shutdownNow(); } catch (SecurityException ok) { return; }
1210 >        } finally {
1211 >            joinPool(p);
1212 >        }
1213 >    }
1214 >
1215 >    /**
1216 >     * execute throws RejectedExecutionException if shutdown
1217 >     */
1218 >    public void testRejectedExecutionExceptionOnShutdown() {
1219 >        ThreadPoolExecutor p =
1220 >            new ThreadPoolExecutor(1, 1,
1221 >                                   LONG_DELAY_MS, MILLISECONDS,
1222 >                                   new ArrayBlockingQueue<Runnable>(1));
1223 >        try { p.shutdown(); } catch (SecurityException ok) { return; }
1224          try {
1225 <            new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,null,new NoOpREHandler());
1225 >            p.execute(new NoOpRunnable());
1226              shouldThrow();
1227 +        } catch (RejectedExecutionException success) {}
1228 +
1229 +        joinPool(p);
1230 +    }
1231 +
1232 +    /**
1233 +     * execute using CallerRunsPolicy drops task on shutdown
1234 +     */
1235 +    public void testCallerRunsOnShutdown() {
1236 +        RejectedExecutionHandler h = new ThreadPoolExecutor.CallerRunsPolicy();
1237 +        final ThreadPoolExecutor p =
1238 +            new ThreadPoolExecutor(1, 1,
1239 +                                   LONG_DELAY_MS, MILLISECONDS,
1240 +                                   new ArrayBlockingQueue<Runnable>(1), h);
1241 +
1242 +        try { p.shutdown(); } catch (SecurityException ok) { return; }
1243 +        try {
1244 +            TrackedNoOpRunnable r = new TrackedNoOpRunnable();
1245 +            p.execute(r);
1246 +            assertFalse(r.done);
1247 +        } finally {
1248 +            joinPool(p);
1249 +        }
1250 +    }
1251 +
1252 +    /**
1253 +     * execute using DiscardPolicy drops task on shutdown
1254 +     */
1255 +    public void testDiscardOnShutdown() {
1256 +        RejectedExecutionHandler h = new ThreadPoolExecutor.DiscardPolicy();
1257 +        ThreadPoolExecutor p =
1258 +            new ThreadPoolExecutor(1, 1,
1259 +                                   LONG_DELAY_MS, MILLISECONDS,
1260 +                                   new ArrayBlockingQueue<Runnable>(1),
1261 +                                   h);
1262 +
1263 +        try { p.shutdown(); } catch (SecurityException ok) { return; }
1264 +        try {
1265 +            TrackedNoOpRunnable r = new TrackedNoOpRunnable();
1266 +            p.execute(r);
1267 +            assertFalse(r.done);
1268 +        } finally {
1269 +            joinPool(p);
1270 +        }
1271 +    }
1272 +
1273 +    /**
1274 +     * execute using DiscardOldestPolicy drops task on shutdown
1275 +     */
1276 +    public void testDiscardOldestOnShutdown() {
1277 +        RejectedExecutionHandler h = new ThreadPoolExecutor.DiscardOldestPolicy();
1278 +        ThreadPoolExecutor p =
1279 +            new ThreadPoolExecutor(1, 1,
1280 +                                   LONG_DELAY_MS, MILLISECONDS,
1281 +                                   new ArrayBlockingQueue<Runnable>(1),
1282 +                                   h);
1283 +
1284 +        try { p.shutdown(); } catch (SecurityException ok) { return; }
1285 +        try {
1286 +            TrackedNoOpRunnable r = new TrackedNoOpRunnable();
1287 +            p.execute(r);
1288 +            assertFalse(r.done);
1289 +        } finally {
1290 +            joinPool(p);
1291          }
452        catch (NullPointerException success){}  
1292      }
1293  
1294 <    /**
1295 <     * Constructor throws if handler is set to null
1294 >    /**
1295 >     * execute(null) throws NPE
1296       */
1297 <    public void testNullPointerException5() {
1297 >    public void testExecuteNull() {
1298 >        ThreadPoolExecutor p =
1299 >            new ThreadPoolExecutor(1, 2, 1L, SECONDS,
1300 >                                   new ArrayBlockingQueue<Runnable>(10));
1301          try {
1302 <            RejectedExecutionHandler r = null;
461 <            new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10),r);
1302 >            p.execute(null);
1303              shouldThrow();
1304 +        } catch (NullPointerException success) {}
1305 +
1306 +        joinPool(p);
1307 +    }
1308 +
1309 +    /**
1310 +     * setCorePoolSize of negative value throws IllegalArgumentException
1311 +     */
1312 +    public void testCorePoolSizeIllegalArgumentException() {
1313 +        ThreadPoolExecutor p =
1314 +            new ThreadPoolExecutor(1, 2,
1315 +                                   LONG_DELAY_MS, MILLISECONDS,
1316 +                                   new ArrayBlockingQueue<Runnable>(10));
1317 +        try {
1318 +            p.setCorePoolSize(-1);
1319 +            shouldThrow();
1320 +        } catch (IllegalArgumentException success) {
1321 +        } finally {
1322 +            try { p.shutdown(); } catch (SecurityException ok) { return; }
1323          }
1324 <        catch (NullPointerException success){}  
1324 >        joinPool(p);
1325      }
1326  
1327 <    
1328 <    /**
1329 <     * Constructor throws if corePoolSize argument is less than zero
1327 >    /**
1328 >     * setMaximumPoolSize(int) throws IllegalArgumentException if
1329 >     * given a value less the core pool size
1330       */
1331 <    public void testConstructor16() {
1331 >    public void testMaximumPoolSizeIllegalArgumentException() {
1332 >        ThreadPoolExecutor p =
1333 >            new ThreadPoolExecutor(2, 3,
1334 >                                   LONG_DELAY_MS, MILLISECONDS,
1335 >                                   new ArrayBlockingQueue<Runnable>(10));
1336          try {
1337 <            new ThreadPoolExecutor(-1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new SimpleThreadFactory(),new NoOpREHandler());
1337 >            p.setMaximumPoolSize(1);
1338              shouldThrow();
1339 +        } catch (IllegalArgumentException success) {
1340 +        } finally {
1341 +            try { p.shutdown(); } catch (SecurityException ok) { return; }
1342          }
1343 <        catch (IllegalArgumentException success){}
1343 >        joinPool(p);
1344      }
1345  
1346 <    /**
1347 <     * Constructor throws if maximumPoolSize is less than zero
1346 >    /**
1347 >     * setMaximumPoolSize throws IllegalArgumentException
1348 >     * if given a negative value
1349       */
1350 <    public void testConstructor17() {
1350 >    public void testMaximumPoolSizeIllegalArgumentException2() {
1351 >        ThreadPoolExecutor p =
1352 >            new ThreadPoolExecutor(2, 3,
1353 >                                   LONG_DELAY_MS, MILLISECONDS,
1354 >                                   new ArrayBlockingQueue<Runnable>(10));
1355          try {
1356 <            new ThreadPoolExecutor(1,-1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new SimpleThreadFactory(),new NoOpREHandler());
1356 >            p.setMaximumPoolSize(-1);
1357              shouldThrow();
1358 +        } catch (IllegalArgumentException success) {
1359 +        } finally {
1360 +            try { p.shutdown(); } catch (SecurityException ok) { return; }
1361          }
1362 <        catch (IllegalArgumentException success){}
1362 >        joinPool(p);
1363      }
1364  
1365 <    /**
1366 <     * Constructor throws if maximumPoolSize is equal to zero
1365 >    /**
1366 >     * Configuration changes that allow core pool size greater than
1367 >     * max pool size result in IllegalArgumentException.
1368       */
1369 <    public void testConstructor18() {
1369 >    public void testPoolSizeInvariants() {
1370 >        ThreadPoolExecutor p =
1371 >            new ThreadPoolExecutor(1, 1,
1372 >                                   LONG_DELAY_MS, MILLISECONDS,
1373 >                                   new ArrayBlockingQueue<Runnable>(10));
1374 >        for (int s = 1; s < 5; s++) {
1375 >            p.setMaximumPoolSize(s);
1376 >            p.setCorePoolSize(s);
1377 >            try {
1378 >                p.setMaximumPoolSize(s - 1);
1379 >                shouldThrow();
1380 >            } catch (IllegalArgumentException success) {}
1381 >            assertEquals(s, p.getCorePoolSize());
1382 >            assertEquals(s, p.getMaximumPoolSize());
1383 >            try {
1384 >                p.setCorePoolSize(s + 1);
1385 >                shouldThrow();
1386 >            } catch (IllegalArgumentException success) {}
1387 >            assertEquals(s, p.getCorePoolSize());
1388 >            assertEquals(s, p.getMaximumPoolSize());
1389 >        }
1390 >        joinPool(p);
1391 >    }
1392 >
1393 >    /**
1394 >     * setKeepAliveTime throws IllegalArgumentException
1395 >     * when given a negative value
1396 >     */
1397 >    public void testKeepAliveTimeIllegalArgumentException() {
1398 >        ThreadPoolExecutor p =
1399 >            new ThreadPoolExecutor(2, 3,
1400 >                                   LONG_DELAY_MS, MILLISECONDS,
1401 >                                   new ArrayBlockingQueue<Runnable>(10));
1402          try {
1403 <            new ThreadPoolExecutor(1,0,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new SimpleThreadFactory(),new NoOpREHandler());
1403 >            p.setKeepAliveTime(-1,MILLISECONDS);
1404              shouldThrow();
1405 +        } catch (IllegalArgumentException success) {
1406 +        } finally {
1407 +            try { p.shutdown(); } catch (SecurityException ok) { return; }
1408          }
1409 <        catch (IllegalArgumentException success){}
1409 >        joinPool(p);
1410      }
1411  
1412 <    /**
1413 <     * Constructor throws if keepAliveTime is less than zero
1412 >    /**
1413 >     * terminated() is called on termination
1414       */
1415 <    public void testConstructor19() {
1415 >    public void testTerminated() {
1416 >        ExtendedTPE p = new ExtendedTPE();
1417 >        try { p.shutdown(); } catch (SecurityException ok) { return; }
1418 >        assertTrue(p.terminatedCalled());
1419 >        joinPool(p);
1420 >    }
1421 >
1422 >    /**
1423 >     * beforeExecute and afterExecute are called when executing task
1424 >     */
1425 >    public void testBeforeAfter() throws InterruptedException {
1426 >        ExtendedTPE p = new ExtendedTPE();
1427 >        try {
1428 >            final CountDownLatch done = new CountDownLatch(1);
1429 >            p.execute(new CheckedRunnable() {
1430 >                public void realRun() {
1431 >                    done.countDown();
1432 >                }});
1433 >            await(p.afterCalled);
1434 >            assertEquals(0, done.getCount());
1435 >            assertTrue(p.afterCalled());
1436 >            assertTrue(p.beforeCalled());
1437 >            try { p.shutdown(); } catch (SecurityException ok) { return; }
1438 >        } finally {
1439 >            joinPool(p);
1440 >        }
1441 >    }
1442 >
1443 >    /**
1444 >     * completed submit of callable returns result
1445 >     */
1446 >    public void testSubmitCallable() throws Exception {
1447 >        ExecutorService e =
1448 >            new ThreadPoolExecutor(2, 2,
1449 >                                   LONG_DELAY_MS, MILLISECONDS,
1450 >                                   new ArrayBlockingQueue<Runnable>(10));
1451 >        try {
1452 >            Future<String> future = e.submit(new StringTask());
1453 >            String result = future.get();
1454 >            assertSame(TEST_STRING, result);
1455 >        } finally {
1456 >            joinPool(e);
1457 >        }
1458 >    }
1459 >
1460 >    /**
1461 >     * completed submit of runnable returns successfully
1462 >     */
1463 >    public void testSubmitRunnable() throws Exception {
1464 >        ExecutorService e =
1465 >            new ThreadPoolExecutor(2, 2,
1466 >                                   LONG_DELAY_MS, MILLISECONDS,
1467 >                                   new ArrayBlockingQueue<Runnable>(10));
1468 >        try {
1469 >            Future<?> future = e.submit(new NoOpRunnable());
1470 >            future.get();
1471 >            assertTrue(future.isDone());
1472 >        } finally {
1473 >            joinPool(e);
1474 >        }
1475 >    }
1476 >
1477 >    /**
1478 >     * completed submit of (runnable, result) returns result
1479 >     */
1480 >    public void testSubmitRunnable2() throws Exception {
1481 >        ExecutorService e =
1482 >            new ThreadPoolExecutor(2, 2,
1483 >                                   LONG_DELAY_MS, MILLISECONDS,
1484 >                                   new ArrayBlockingQueue<Runnable>(10));
1485 >        try {
1486 >            Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING);
1487 >            String result = future.get();
1488 >            assertSame(TEST_STRING, result);
1489 >        } finally {
1490 >            joinPool(e);
1491 >        }
1492 >    }
1493 >
1494 >    /**
1495 >     * invokeAny(null) throws NPE
1496 >     */
1497 >    public void testInvokeAny1() throws Exception {
1498 >        ExecutorService e =
1499 >            new ThreadPoolExecutor(2, 2,
1500 >                                   LONG_DELAY_MS, MILLISECONDS,
1501 >                                   new ArrayBlockingQueue<Runnable>(10));
1502          try {
1503 <            new ThreadPoolExecutor(1,2,-1L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new SimpleThreadFactory(),new NoOpREHandler());
1503 >            e.invokeAny(null);
1504              shouldThrow();
1505 +        } catch (NullPointerException success) {
1506 +        } finally {
1507 +            joinPool(e);
1508          }
509        catch (IllegalArgumentException success){}
1509      }
1510  
1511 <    /**
1512 <     * Constructor throws if corePoolSize is greater than the maximumPoolSize
1511 >    /**
1512 >     * invokeAny(empty collection) throws IAE
1513       */
1514 <    public void testConstructor20() {
1514 >    public void testInvokeAny2() throws Exception {
1515 >        ExecutorService e =
1516 >            new ThreadPoolExecutor(2, 2,
1517 >                                   LONG_DELAY_MS, MILLISECONDS,
1518 >                                   new ArrayBlockingQueue<Runnable>(10));
1519          try {
1520 <            new ThreadPoolExecutor(2,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new SimpleThreadFactory(),new NoOpREHandler());
1520 >            e.invokeAny(new ArrayList<Callable<String>>());
1521              shouldThrow();
1522 +        } catch (IllegalArgumentException success) {
1523 +        } finally {
1524 +            joinPool(e);
1525          }
520        catch (IllegalArgumentException success){}
1526      }
1527  
1528 <    /**
1529 <     * Constructor throws if workQueue is set to null
1528 >    /**
1529 >     * invokeAny(c) throws NPE if c has null elements
1530       */
1531 <    public void testNullPointerException6() {
1531 >    public void testInvokeAny3() throws Exception {
1532 >        final CountDownLatch latch = new CountDownLatch(1);
1533 >        final ExecutorService e =
1534 >            new ThreadPoolExecutor(2, 2,
1535 >                                   LONG_DELAY_MS, MILLISECONDS,
1536 >                                   new ArrayBlockingQueue<Runnable>(10));
1537 >        List<Callable<String>> l = new ArrayList<Callable<String>>();
1538 >        l.add(latchAwaitingStringTask(latch));
1539 >        l.add(null);
1540          try {
1541 <            new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,null,new SimpleThreadFactory(),new NoOpREHandler());
1541 >            e.invokeAny(l);
1542              shouldThrow();
1543 +        } catch (NullPointerException success) {
1544 +        } finally {
1545 +            latch.countDown();
1546 +            joinPool(e);
1547          }
531        catch (NullPointerException success){}  
1548      }
1549  
1550 <    /**
1551 <     * Constructor throws if handler is set to null
1550 >    /**
1551 >     * invokeAny(c) throws ExecutionException if no task completes
1552       */
1553 <    public void testNullPointerException7() {
1553 >    public void testInvokeAny4() throws Exception {
1554 >        ExecutorService e =
1555 >            new ThreadPoolExecutor(2, 2,
1556 >                                   LONG_DELAY_MS, MILLISECONDS,
1557 >                                   new ArrayBlockingQueue<Runnable>(10));
1558 >        List<Callable<String>> l = new ArrayList<Callable<String>>();
1559 >        l.add(new NPETask());
1560          try {
1561 <            RejectedExecutionHandler r = null;
540 <            new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10),new SimpleThreadFactory(),r);
1561 >            e.invokeAny(l);
1562              shouldThrow();
1563 +        } catch (ExecutionException success) {
1564 +            assertTrue(success.getCause() instanceof NullPointerException);
1565 +        } finally {
1566 +            joinPool(e);
1567          }
543        catch (NullPointerException success){}  
1568      }
1569  
1570 <    /**
1571 <     * Constructor throws if ThreadFactory is set top null
1570 >    /**
1571 >     * invokeAny(c) returns result of some task
1572       */
1573 <    public void testNullPointerException8() {
1573 >    public void testInvokeAny5() throws Exception {
1574 >        ExecutorService e =
1575 >            new ThreadPoolExecutor(2, 2,
1576 >                                   LONG_DELAY_MS, MILLISECONDS,
1577 >                                   new ArrayBlockingQueue<Runnable>(10));
1578          try {
1579 <            ThreadFactory f = null;
1580 <            new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10),f,new NoOpREHandler());
1579 >            List<Callable<String>> l = new ArrayList<Callable<String>>();
1580 >            l.add(new StringTask());
1581 >            l.add(new StringTask());
1582 >            String result = e.invokeAny(l);
1583 >            assertSame(TEST_STRING, result);
1584 >        } finally {
1585 >            joinPool(e);
1586 >        }
1587 >    }
1588 >
1589 >    /**
1590 >     * invokeAll(null) throws NPE
1591 >     */
1592 >    public void testInvokeAll1() throws Exception {
1593 >        ExecutorService e =
1594 >            new ThreadPoolExecutor(2, 2,
1595 >                                   LONG_DELAY_MS, MILLISECONDS,
1596 >                                   new ArrayBlockingQueue<Runnable>(10));
1597 >        try {
1598 >            e.invokeAll(null);
1599              shouldThrow();
1600 +        } catch (NullPointerException success) {
1601 +        } finally {
1602 +            joinPool(e);
1603          }
555        catch (NullPointerException successdn8){}  
1604      }
557    
1605  
1606      /**
1607 <     *  execute throws RejectedExecutionException if shutdown
1607 >     * invokeAll(empty collection) returns empty collection
1608       */
1609 <    public void testRejectedExecutionException() {
1610 <        ThreadPoolExecutor tpe = null;
1609 >    public void testInvokeAll2() throws InterruptedException {
1610 >        ExecutorService e =
1611 >            new ThreadPoolExecutor(2, 2,
1612 >                                   LONG_DELAY_MS, MILLISECONDS,
1613 >                                   new ArrayBlockingQueue<Runnable>(10));
1614          try {
1615 <            tpe = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(1));
1616 <        } catch(Exception e){}
1617 <        tpe.shutdown();
1618 <        try {
1619 <            tpe.execute(new NoOpRunnable());
570 <            shouldThrow();
571 <        } catch(RejectedExecutionException success){}
572 <        
573 <        joinPool(tpe);
1615 >            List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>());
1616 >            assertTrue(r.isEmpty());
1617 >        } finally {
1618 >            joinPool(e);
1619 >        }
1620      }
1621  
1622      /**
1623 <     *  execute throws RejectedExecutionException
578 <     *  if saturated.
1623 >     * invokeAll(c) throws NPE if c has null elements
1624       */
1625 <    public void testSaturatedExecute() {
1626 <        ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1));
1625 >    public void testInvokeAll3() throws Exception {
1626 >        ExecutorService e =
1627 >            new ThreadPoolExecutor(2, 2,
1628 >                                   LONG_DELAY_MS, MILLISECONDS,
1629 >                                   new ArrayBlockingQueue<Runnable>(10));
1630 >        List<Callable<String>> l = new ArrayList<Callable<String>>();
1631 >        l.add(new StringTask());
1632 >        l.add(null);
1633          try {
1634 <            
1635 <            for(int i = 0; i < 5; ++i){
1636 <                p.execute(new MediumRunnable());
1634 >            e.invokeAll(l);
1635 >            shouldThrow();
1636 >        } catch (NullPointerException success) {
1637 >        } finally {
1638 >            joinPool(e);
1639 >        }
1640 >    }
1641 >
1642 >    /**
1643 >     * get of element of invokeAll(c) throws exception on failed task
1644 >     */
1645 >    public void testInvokeAll4() throws Exception {
1646 >        ExecutorService e =
1647 >            new ThreadPoolExecutor(2, 2,
1648 >                                   LONG_DELAY_MS, MILLISECONDS,
1649 >                                   new ArrayBlockingQueue<Runnable>(10));
1650 >        try {
1651 >            List<Callable<String>> l = new ArrayList<Callable<String>>();
1652 >            l.add(new NPETask());
1653 >            List<Future<String>> futures = e.invokeAll(l);
1654 >            assertEquals(1, futures.size());
1655 >            try {
1656 >                futures.get(0).get();
1657 >                shouldThrow();
1658 >            } catch (ExecutionException success) {
1659 >                assertTrue(success.getCause() instanceof NullPointerException);
1660              }
1661 +        } finally {
1662 +            joinPool(e);
1663 +        }
1664 +    }
1665 +
1666 +    /**
1667 +     * invokeAll(c) returns results of all completed tasks
1668 +     */
1669 +    public void testInvokeAll5() throws Exception {
1670 +        ExecutorService e =
1671 +            new ThreadPoolExecutor(2, 2,
1672 +                                   LONG_DELAY_MS, MILLISECONDS,
1673 +                                   new ArrayBlockingQueue<Runnable>(10));
1674 +        try {
1675 +            List<Callable<String>> l = new ArrayList<Callable<String>>();
1676 +            l.add(new StringTask());
1677 +            l.add(new StringTask());
1678 +            List<Future<String>> futures = e.invokeAll(l);
1679 +            assertEquals(2, futures.size());
1680 +            for (Future<String> future : futures)
1681 +                assertSame(TEST_STRING, future.get());
1682 +        } finally {
1683 +            joinPool(e);
1684 +        }
1685 +    }
1686 +
1687 +    /**
1688 +     * timed invokeAny(null) throws NPE
1689 +     */
1690 +    public void testTimedInvokeAny1() throws Exception {
1691 +        ExecutorService e =
1692 +            new ThreadPoolExecutor(2, 2,
1693 +                                   LONG_DELAY_MS, MILLISECONDS,
1694 +                                   new ArrayBlockingQueue<Runnable>(10));
1695 +        try {
1696 +            e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS);
1697              shouldThrow();
1698 <        } catch(RejectedExecutionException success){}
1699 <        joinPool(p);
1698 >        } catch (NullPointerException success) {
1699 >        } finally {
1700 >            joinPool(e);
1701 >        }
1702      }
1703  
1704      /**
1705 <     *  execute (null) throws NPE
1705 >     * timed invokeAny(,,null) throws NPE
1706       */
1707 <    public void testExecuteNull() {
1708 <        ThreadPoolExecutor tpe = null;
1707 >    public void testTimedInvokeAnyNullTimeUnit() throws Exception {
1708 >        ExecutorService e =
1709 >            new ThreadPoolExecutor(2, 2,
1710 >                                   LONG_DELAY_MS, MILLISECONDS,
1711 >                                   new ArrayBlockingQueue<Runnable>(10));
1712 >        List<Callable<String>> l = new ArrayList<Callable<String>>();
1713 >        l.add(new StringTask());
1714          try {
1715 <            tpe = new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10));
599 <            tpe.execute(null);
1715 >            e.invokeAny(l, MEDIUM_DELAY_MS, null);
1716              shouldThrow();
1717 <        } catch(NullPointerException success){}
1718 <        
1719 <        joinPool(tpe);
1717 >        } catch (NullPointerException success) {
1718 >        } finally {
1719 >            joinPool(e);
1720 >        }
1721      }
1722 <    
1722 >
1723      /**
1724 <     *  setCorePoolSize of netaitev value throws IllegalArgumentException
1724 >     * timed invokeAny(empty collection) throws IAE
1725       */
1726 <    public void testCorePoolSizeIllegalArgumentException() {
1727 <        ThreadPoolExecutor tpe = null;
1728 <        try {
1729 <            tpe = new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10));
1730 <        } catch(Exception e){}
614 <        try {
615 <            tpe.setCorePoolSize(-1);
616 <            shouldThrow();
617 <        } catch(IllegalArgumentException success){
618 <        } finally {
619 <            tpe.shutdown();
620 <        }
621 <        joinPool(tpe);
622 <    }  
623 <
624 <    /**
625 <     *  setMaximumPoolSize(int) throws IllegalArgumentException if
626 <     *  given a value less the core pool size
627 <     */  
628 <    public void testMaximumPoolSizeIllegalArgumentException() {
629 <        ThreadPoolExecutor tpe = null;
1726 >    public void testTimedInvokeAny2() throws Exception {
1727 >        ExecutorService e =
1728 >            new ThreadPoolExecutor(2, 2,
1729 >                                   LONG_DELAY_MS, MILLISECONDS,
1730 >                                   new ArrayBlockingQueue<Runnable>(10));
1731          try {
1732 <            tpe = new ThreadPoolExecutor(2,3,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10));
1733 <        } catch(Exception e){}
1732 >            e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
1733 >            shouldThrow();
1734 >        } catch (IllegalArgumentException success) {
1735 >        } finally {
1736 >            joinPool(e);
1737 >        }
1738 >    }
1739 >
1740 >    /**
1741 >     * timed invokeAny(c) throws NPE if c has null elements
1742 >     */
1743 >    public void testTimedInvokeAny3() throws Exception {
1744 >        final CountDownLatch latch = new CountDownLatch(1);
1745 >        final ExecutorService e =
1746 >            new ThreadPoolExecutor(2, 2,
1747 >                                   LONG_DELAY_MS, MILLISECONDS,
1748 >                                   new ArrayBlockingQueue<Runnable>(10));
1749 >        List<Callable<String>> l = new ArrayList<Callable<String>>();
1750 >        l.add(latchAwaitingStringTask(latch));
1751 >        l.add(null);
1752          try {
1753 <            tpe.setMaximumPoolSize(1);
1753 >            e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1754              shouldThrow();
1755 <        } catch(IllegalArgumentException success){
1755 >        } catch (NullPointerException success) {
1756          } finally {
1757 <            tpe.shutdown();
1757 >            latch.countDown();
1758 >            joinPool(e);
1759          }
640        joinPool(tpe);
1760      }
1761 <    
1761 >
1762      /**
1763 <     *  setMaximumPoolSize throws IllegalArgumentException
645 <     *  if given a negative value
1763 >     * timed invokeAny(c) throws ExecutionException if no task completes
1764       */
1765 <    public void testMaximumPoolSizeIllegalArgumentException2() {
1766 <        ThreadPoolExecutor tpe = null;
1765 >    public void testTimedInvokeAny4() throws Exception {
1766 >        ExecutorService e =
1767 >            new ThreadPoolExecutor(2, 2,
1768 >                                   LONG_DELAY_MS, MILLISECONDS,
1769 >                                   new ArrayBlockingQueue<Runnable>(10));
1770 >        List<Callable<String>> l = new ArrayList<Callable<String>>();
1771 >        l.add(new NPETask());
1772          try {
1773 <            tpe = new ThreadPoolExecutor(2,3,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10));
1774 <        } catch(Exception e){}
1773 >            e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1774 >            shouldThrow();
1775 >        } catch (ExecutionException success) {
1776 >            assertTrue(success.getCause() instanceof NullPointerException);
1777 >        } finally {
1778 >            joinPool(e);
1779 >        }
1780 >    }
1781 >
1782 >    /**
1783 >     * timed invokeAny(c) returns result of some task
1784 >     */
1785 >    public void testTimedInvokeAny5() throws Exception {
1786 >        ExecutorService e =
1787 >            new ThreadPoolExecutor(2, 2,
1788 >                                   LONG_DELAY_MS, MILLISECONDS,
1789 >                                   new ArrayBlockingQueue<Runnable>(10));
1790 >        try {
1791 >            List<Callable<String>> l = new ArrayList<Callable<String>>();
1792 >            l.add(new StringTask());
1793 >            l.add(new StringTask());
1794 >            String result = e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1795 >            assertSame(TEST_STRING, result);
1796 >        } finally {
1797 >            joinPool(e);
1798 >        }
1799 >    }
1800 >
1801 >    /**
1802 >     * timed invokeAll(null) throws NPE
1803 >     */
1804 >    public void testTimedInvokeAll1() throws Exception {
1805 >        ExecutorService e =
1806 >            new ThreadPoolExecutor(2, 2,
1807 >                                   LONG_DELAY_MS, MILLISECONDS,
1808 >                                   new ArrayBlockingQueue<Runnable>(10));
1809          try {
1810 <            tpe.setMaximumPoolSize(-1);
1810 >            e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS);
1811              shouldThrow();
1812 <        } catch(IllegalArgumentException success){
1812 >        } catch (NullPointerException success) {
1813          } finally {
1814 <            tpe.shutdown();
1814 >            joinPool(e);
1815          }
659        joinPool(tpe);
1816      }
661    
1817  
1818      /**
1819 <     *  setKeepAliveTime  throws IllegalArgumentException
665 <     *  when given a negative value
1819 >     * timed invokeAll(,,null) throws NPE
1820       */
1821 <    public void testKeepAliveTimeIllegalArgumentException() {
1822 <        ThreadPoolExecutor tpe = null;
1821 >    public void testTimedInvokeAllNullTimeUnit() throws Exception {
1822 >        ExecutorService e =
1823 >            new ThreadPoolExecutor(2, 2,
1824 >                                   LONG_DELAY_MS, MILLISECONDS,
1825 >                                   new ArrayBlockingQueue<Runnable>(10));
1826 >        List<Callable<String>> l = new ArrayList<Callable<String>>();
1827 >        l.add(new StringTask());
1828          try {
1829 <            tpe = new ThreadPoolExecutor(2,3,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10));
671 <        } catch(Exception e){}
672 <        
673 <        try {
674 <            tpe.setKeepAliveTime(-1,TimeUnit.MILLISECONDS);
1829 >            e.invokeAll(l, MEDIUM_DELAY_MS, null);
1830              shouldThrow();
1831 <        } catch(IllegalArgumentException success){
1831 >        } catch (NullPointerException success) {
1832          } finally {
1833 <            tpe.shutdown();
1833 >            joinPool(e);
1834          }
680        joinPool(tpe);
1835      }
1836 <  
1836 >
1837 >    /**
1838 >     * timed invokeAll(empty collection) returns empty collection
1839 >     */
1840 >    public void testTimedInvokeAll2() throws InterruptedException {
1841 >        ExecutorService e =
1842 >            new ThreadPoolExecutor(2, 2,
1843 >                                   LONG_DELAY_MS, MILLISECONDS,
1844 >                                   new ArrayBlockingQueue<Runnable>(10));
1845 >        try {
1846 >            List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
1847 >            assertTrue(r.isEmpty());
1848 >        } finally {
1849 >            joinPool(e);
1850 >        }
1851 >    }
1852 >
1853 >    /**
1854 >     * timed invokeAll(c) throws NPE if c has null elements
1855 >     */
1856 >    public void testTimedInvokeAll3() throws Exception {
1857 >        ExecutorService e =
1858 >            new ThreadPoolExecutor(2, 2,
1859 >                                   LONG_DELAY_MS, MILLISECONDS,
1860 >                                   new ArrayBlockingQueue<Runnable>(10));
1861 >        List<Callable<String>> l = new ArrayList<Callable<String>>();
1862 >        l.add(new StringTask());
1863 >        l.add(null);
1864 >        try {
1865 >            e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1866 >            shouldThrow();
1867 >        } catch (NullPointerException success) {
1868 >        } finally {
1869 >            joinPool(e);
1870 >        }
1871 >    }
1872 >
1873 >    /**
1874 >     * get of element of invokeAll(c) throws exception on failed task
1875 >     */
1876 >    public void testTimedInvokeAll4() throws Exception {
1877 >        ExecutorService e =
1878 >            new ThreadPoolExecutor(2, 2,
1879 >                                   LONG_DELAY_MS, MILLISECONDS,
1880 >                                   new ArrayBlockingQueue<Runnable>(10));
1881 >        List<Callable<String>> l = new ArrayList<Callable<String>>();
1882 >        l.add(new NPETask());
1883 >        List<Future<String>> futures =
1884 >            e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1885 >        assertEquals(1, futures.size());
1886 >        try {
1887 >            futures.get(0).get();
1888 >            shouldThrow();
1889 >        } catch (ExecutionException success) {
1890 >            assertTrue(success.getCause() instanceof NullPointerException);
1891 >        } finally {
1892 >            joinPool(e);
1893 >        }
1894 >    }
1895 >
1896 >    /**
1897 >     * timed invokeAll(c) returns results of all completed tasks
1898 >     */
1899 >    public void testTimedInvokeAll5() throws Exception {
1900 >        ExecutorService e =
1901 >            new ThreadPoolExecutor(2, 2,
1902 >                                   LONG_DELAY_MS, MILLISECONDS,
1903 >                                   new ArrayBlockingQueue<Runnable>(10));
1904 >        try {
1905 >            List<Callable<String>> l = new ArrayList<Callable<String>>();
1906 >            l.add(new StringTask());
1907 >            l.add(new StringTask());
1908 >            List<Future<String>> futures =
1909 >                e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS);
1910 >            assertEquals(2, futures.size());
1911 >            for (Future<String> future : futures)
1912 >                assertSame(TEST_STRING, future.get());
1913 >        } finally {
1914 >            joinPool(e);
1915 >        }
1916 >    }
1917 >
1918 >    /**
1919 >     * timed invokeAll(c) cancels tasks not completed by timeout
1920 >     */
1921 >    public void testTimedInvokeAll6() throws Exception {
1922 >        ExecutorService e =
1923 >            new ThreadPoolExecutor(2, 2,
1924 >                                   LONG_DELAY_MS, MILLISECONDS,
1925 >                                   new ArrayBlockingQueue<Runnable>(10));
1926 >        try {
1927 >            for (long timeout = timeoutMillis();;) {
1928 >                List<Callable<String>> tasks = new ArrayList<>();
1929 >                tasks.add(new StringTask("0"));
1930 >                tasks.add(Executors.callable(new LongPossiblyInterruptedRunnable(), TEST_STRING));
1931 >                tasks.add(new StringTask("2"));
1932 >                long startTime = System.nanoTime();
1933 >                List<Future<String>> futures =
1934 >                    e.invokeAll(tasks, timeout, MILLISECONDS);
1935 >                assertEquals(tasks.size(), futures.size());
1936 >                assertTrue(millisElapsedSince(startTime) >= timeout);
1937 >                for (Future future : futures)
1938 >                    assertTrue(future.isDone());
1939 >                assertTrue(futures.get(1).isCancelled());
1940 >                try {
1941 >                    assertEquals("0", futures.get(0).get());
1942 >                    assertEquals("2", futures.get(2).get());
1943 >                    break;
1944 >                } catch (CancellationException retryWithLongerTimeout) {
1945 >                    timeout *= 2;
1946 >                    if (timeout >= LONG_DELAY_MS / 2)
1947 >                        fail("expected exactly one task to be cancelled");
1948 >                }
1949 >            }
1950 >        } finally {
1951 >            joinPool(e);
1952 >        }
1953 >    }
1954 >
1955 >    /**
1956 >     * Execution continues if there is at least one thread even if
1957 >     * thread factory fails to create more
1958 >     */
1959 >    public void testFailingThreadFactory() throws InterruptedException {
1960 >        final ExecutorService e =
1961 >            new ThreadPoolExecutor(100, 100,
1962 >                                   LONG_DELAY_MS, MILLISECONDS,
1963 >                                   new LinkedBlockingQueue<Runnable>(),
1964 >                                   new FailingThreadFactory());
1965 >        try {
1966 >            final int TASKS = 100;
1967 >            final CountDownLatch done = new CountDownLatch(TASKS);
1968 >            for (int k = 0; k < TASKS; ++k)
1969 >                e.execute(new CheckedRunnable() {
1970 >                    public void realRun() {
1971 >                        done.countDown();
1972 >                    }});
1973 >            assertTrue(done.await(LONG_DELAY_MS, MILLISECONDS));
1974 >        } finally {
1975 >            joinPool(e);
1976 >        }
1977 >    }
1978 >
1979 >    /**
1980 >     * allowsCoreThreadTimeOut is by default false.
1981 >     */
1982 >    public void testAllowsCoreThreadTimeOut() {
1983 >        final ThreadPoolExecutor p =
1984 >            new ThreadPoolExecutor(2, 2,
1985 >                                   1000, MILLISECONDS,
1986 >                                   new ArrayBlockingQueue<Runnable>(10));
1987 >        assertFalse(p.allowsCoreThreadTimeOut());
1988 >        joinPool(p);
1989 >    }
1990 >
1991 >    /**
1992 >     * allowCoreThreadTimeOut(true) causes idle threads to time out
1993 >     */
1994 >    public void testAllowCoreThreadTimeOut_true() throws Exception {
1995 >        long keepAliveTime = timeoutMillis();
1996 >        final ThreadPoolExecutor p =
1997 >            new ThreadPoolExecutor(2, 10,
1998 >                                   keepAliveTime, MILLISECONDS,
1999 >                                   new ArrayBlockingQueue<Runnable>(10));
2000 >        final CountDownLatch threadStarted = new CountDownLatch(1);
2001 >        try {
2002 >            p.allowCoreThreadTimeOut(true);
2003 >            p.execute(new CheckedRunnable() {
2004 >                public void realRun() {
2005 >                    threadStarted.countDown();
2006 >                    assertEquals(1, p.getPoolSize());
2007 >                }});
2008 >            await(threadStarted);
2009 >            delay(keepAliveTime);
2010 >            long startTime = System.nanoTime();
2011 >            while (p.getPoolSize() > 0
2012 >                   && millisElapsedSince(startTime) < LONG_DELAY_MS)
2013 >                Thread.yield();
2014 >            assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
2015 >            assertEquals(0, p.getPoolSize());
2016 >        } finally {
2017 >            joinPool(p);
2018 >        }
2019 >    }
2020 >
2021 >    /**
2022 >     * allowCoreThreadTimeOut(false) causes idle threads not to time out
2023 >     */
2024 >    public void testAllowCoreThreadTimeOut_false() throws Exception {
2025 >        long keepAliveTime = timeoutMillis();
2026 >        final ThreadPoolExecutor p =
2027 >            new ThreadPoolExecutor(2, 10,
2028 >                                   keepAliveTime, MILLISECONDS,
2029 >                                   new ArrayBlockingQueue<Runnable>(10));
2030 >        final CountDownLatch threadStarted = new CountDownLatch(1);
2031 >        try {
2032 >            p.allowCoreThreadTimeOut(false);
2033 >            p.execute(new CheckedRunnable() {
2034 >                public void realRun() throws InterruptedException {
2035 >                    threadStarted.countDown();
2036 >                    assertTrue(p.getPoolSize() >= 1);
2037 >                }});
2038 >            delay(2 * keepAliveTime);
2039 >            assertTrue(p.getPoolSize() >= 1);
2040 >        } finally {
2041 >            joinPool(p);
2042 >        }
2043 >    }
2044 >
2045 >    /**
2046 >     * execute allows the same task to be submitted multiple times, even
2047 >     * if rejected
2048 >     */
2049 >    public void testRejectedRecycledTask() throws InterruptedException {
2050 >        final int nTasks = 1000;
2051 >        final CountDownLatch done = new CountDownLatch(nTasks);
2052 >        final Runnable recycledTask = new Runnable() {
2053 >            public void run() {
2054 >                done.countDown();
2055 >            }};
2056 >        final ThreadPoolExecutor p =
2057 >            new ThreadPoolExecutor(1, 30,
2058 >                                   60, SECONDS,
2059 >                                   new ArrayBlockingQueue(30));
2060 >        try {
2061 >            for (int i = 0; i < nTasks; ++i) {
2062 >                for (;;) {
2063 >                    try {
2064 >                        p.execute(recycledTask);
2065 >                        break;
2066 >                    }
2067 >                    catch (RejectedExecutionException ignore) {}
2068 >                }
2069 >            }
2070 >            // enough time to run all tasks
2071 >            assertTrue(done.await(nTasks * SHORT_DELAY_MS, MILLISECONDS));
2072 >        } finally {
2073 >            joinPool(p);
2074 >        }
2075 >    }
2076 >
2077 >    /**
2078 >     * get(cancelled task) throws CancellationException
2079 >     */
2080 >    public void testGet_cancelled() throws Exception {
2081 >        final ExecutorService e =
2082 >            new ThreadPoolExecutor(1, 1,
2083 >                                   LONG_DELAY_MS, MILLISECONDS,
2084 >                                   new LinkedBlockingQueue<Runnable>());
2085 >        try {
2086 >            final CountDownLatch blockerStarted = new CountDownLatch(1);
2087 >            final CountDownLatch done = new CountDownLatch(1);
2088 >            final List<Future<?>> futures = new ArrayList<>();
2089 >            for (int i = 0; i < 2; i++) {
2090 >                Runnable r = new CheckedRunnable() { public void realRun()
2091 >                                                         throws Throwable {
2092 >                    blockerStarted.countDown();
2093 >                    assertTrue(done.await(2 * LONG_DELAY_MS, MILLISECONDS));
2094 >                }};
2095 >                futures.add(e.submit(r));
2096 >            }
2097 >            assertTrue(blockerStarted.await(LONG_DELAY_MS, MILLISECONDS));
2098 >            for (Future<?> future : futures) future.cancel(false);
2099 >            for (Future<?> future : futures) {
2100 >                try {
2101 >                    future.get();
2102 >                    shouldThrow();
2103 >                } catch (CancellationException success) {}
2104 >                try {
2105 >                    future.get(LONG_DELAY_MS, MILLISECONDS);
2106 >                    shouldThrow();
2107 >                } catch (CancellationException success) {}
2108 >                assertTrue(future.isCancelled());
2109 >                assertTrue(future.isDone());
2110 >            }
2111 >            done.countDown();
2112 >        } finally {
2113 >            joinPool(e);
2114 >        }
2115 >    }
2116 >
2117   }

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