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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 1.30 by jsr166, Fri Nov 20 22:58:48 2009 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/licenses/publicdomain
5 > * Other contributors include Andrew Wright, Jeffrey Hayes,
6 > * Pat Fisher, Mike Judd.
7   */
8  
9   import java.util.concurrent.*;
10 + import static java.util.concurrent.TimeUnit.MILLISECONDS;
11 + import java.util.concurrent.atomic.*;
12   import junit.framework.*;
13 < import java.util.List;
13 > import java.util.*;
14  
15   public class ThreadPoolExecutorTest extends JSR166TestCase {
16      public static void main(String[] args) {
17 <        junit.textui.TestRunner.run (suite());  
17 >        junit.textui.TestRunner.run (suite());
18      }
19      public static Test suite() {
20          return new TestSuite(ThreadPoolExecutorTest.class);
21      }
22 <    
22 >
23 >    static class ExtendedTPE extends ThreadPoolExecutor {
24 >        volatile boolean beforeCalled = false;
25 >        volatile boolean afterCalled = false;
26 >        volatile boolean terminatedCalled = false;
27 >        public ExtendedTPE() {
28 >            super(1, 1, LONG_DELAY_MS, MILLISECONDS, new SynchronousQueue<Runnable>());
29 >        }
30 >        protected void beforeExecute(Thread t, Runnable r) {
31 >            beforeCalled = true;
32 >        }
33 >        protected void afterExecute(Runnable r, Throwable t) {
34 >            afterCalled = true;
35 >        }
36 >        protected void terminated() {
37 >            terminatedCalled = true;
38 >        }
39 >    }
40 >
41 >    static class FailingThreadFactory implements ThreadFactory {
42 >        int calls = 0;
43 >        public Thread newThread(Runnable r) {
44 >            if (++calls > 1) return null;
45 >            return new Thread(r);
46 >        }
47 >    }
48 >
49  
50      /**
51 <     *   execute successfully executes a runnable
51 >     *  execute successfully executes a runnable
52       */
53 <    public void testExecute() {
54 <        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
53 >    public void testExecute() throws InterruptedException {
54 >        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
55          try {
56 <            p1.execute(new Runnable() {
28 <                    public void run() {
29 <                        try {
30 <                            Thread.sleep(SHORT_DELAY_MS);
31 <                        } catch(InterruptedException e){
32 <                            threadUnexpectedException();
33 <                        }
34 <                    }
35 <                });
56 >            p1.execute(new ShortRunnable());
57              Thread.sleep(SMALL_DELAY_MS);
58 <        } catch(InterruptedException e){
59 <            unexpectedException();
60 <        }
40 <        joinPool(p1);
58 >        } finally {
59 >            joinPool(p1);
60 >        }
61      }
62  
63      /**
64       *  getActiveCount increases but doesn't overestimate, when a
65       *  thread becomes active
66       */
67 <    public void testGetActiveCount() {
68 <        ThreadPoolExecutor p2 = new ThreadPoolExecutor(2, 2, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
67 >    public void testGetActiveCount() throws InterruptedException {
68 >        ThreadPoolExecutor p2 = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
69          assertEquals(0, p2.getActiveCount());
70          p2.execute(new MediumRunnable());
71 <        try {
52 <            Thread.sleep(SHORT_DELAY_MS);
53 <        } catch(Exception e){
54 <            unexpectedException();
55 <        }
71 >        Thread.sleep(SHORT_DELAY_MS);
72          assertEquals(1, p2.getActiveCount());
73          joinPool(p2);
74      }
75 <    
75 >
76 >    /**
77 >     *  prestartCoreThread starts a thread if under corePoolSize, else doesn't
78 >     */
79 >    public void testPrestartCoreThread() {
80 >        ThreadPoolExecutor p2 = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
81 >        assertEquals(0, p2.getPoolSize());
82 >        assertTrue(p2.prestartCoreThread());
83 >        assertEquals(1, p2.getPoolSize());
84 >        assertTrue(p2.prestartCoreThread());
85 >        assertEquals(2, p2.getPoolSize());
86 >        assertFalse(p2.prestartCoreThread());
87 >        assertEquals(2, p2.getPoolSize());
88 >        joinPool(p2);
89 >    }
90 >
91 >    /**
92 >     *  prestartAllCoreThreads starts all corePoolSize threads
93 >     */
94 >    public void testPrestartAllCoreThreads() {
95 >        ThreadPoolExecutor p2 = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
96 >        assertEquals(0, p2.getPoolSize());
97 >        p2.prestartAllCoreThreads();
98 >        assertEquals(2, p2.getPoolSize());
99 >        p2.prestartAllCoreThreads();
100 >        assertEquals(2, p2.getPoolSize());
101 >        joinPool(p2);
102 >    }
103 >
104      /**
105       *   getCompletedTaskCount increases, but doesn't overestimate,
106       *   when tasks complete
107       */
108 <    public void testGetCompletedTaskCount() {
109 <        ThreadPoolExecutor p2 = new ThreadPoolExecutor(2, 2, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
108 >    public void testGetCompletedTaskCount() throws InterruptedException {
109 >        ThreadPoolExecutor p2 = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
110          assertEquals(0, p2.getCompletedTaskCount());
111          p2.execute(new ShortRunnable());
112 <        try {
69 <            Thread.sleep(MEDIUM_DELAY_MS);
70 <        } catch(Exception e){
71 <            unexpectedException();
72 <        }
112 >        Thread.sleep(SMALL_DELAY_MS);
113          assertEquals(1, p2.getCompletedTaskCount());
114 <        p2.shutdown();
114 >        try { p2.shutdown(); } catch (SecurityException ok) { return; }
115          joinPool(p2);
116      }
117 <    
117 >
118      /**
119       *   getCorePoolSize returns size given in constructor if not otherwise set
120       */
121      public void testGetCorePoolSize() {
122 <        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
122 >        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
123          assertEquals(1, p1.getCorePoolSize());
124          joinPool(p1);
125      }
126 <    
126 >
127      /**
128       *   getKeepAliveTime returns value given in constructor if not otherwise set
129       */
130      public void testGetKeepAliveTime() {
131 <        ThreadPoolExecutor p2 = new ThreadPoolExecutor(2, 2, 1000, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
131 >        ThreadPoolExecutor p2 = new ThreadPoolExecutor(2, 2, 1000, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
132          assertEquals(1, p2.getKeepAliveTime(TimeUnit.SECONDS));
133          joinPool(p2);
134      }
135 <    
135 >
136 >
137 >    /**
138 >     * getThreadFactory returns factory in constructor if not set
139 >     */
140 >    public void testGetThreadFactory() {
141 >        ThreadFactory tf = new SimpleThreadFactory();
142 >        ThreadPoolExecutor p = new ThreadPoolExecutor(1,2,LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10), tf, new NoOpREHandler());
143 >        assertSame(tf, p.getThreadFactory());
144 >        joinPool(p);
145 >    }
146 >
147 >    /**
148 >     * setThreadFactory sets the thread factory returned by getThreadFactory
149 >     */
150 >    public void testSetThreadFactory() {
151 >        ThreadPoolExecutor p = new ThreadPoolExecutor(1,2,LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
152 >        ThreadFactory tf = new SimpleThreadFactory();
153 >        p.setThreadFactory(tf);
154 >        assertSame(tf, p.getThreadFactory());
155 >        joinPool(p);
156 >    }
157 >
158 >
159 >    /**
160 >     * setThreadFactory(null) throws NPE
161 >     */
162 >    public void testSetThreadFactoryNull() {
163 >        ThreadPoolExecutor p = new ThreadPoolExecutor(1,2,LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
164 >        try {
165 >            p.setThreadFactory(null);
166 >            shouldThrow();
167 >        } catch (NullPointerException success) {
168 >        } finally {
169 >            joinPool(p);
170 >        }
171 >    }
172 >
173 >    /**
174 >     * getRejectedExecutionHandler returns handler in constructor if not set
175 >     */
176 >    public void testGetRejectedExecutionHandler() {
177 >        RejectedExecutionHandler h = new NoOpREHandler();
178 >        ThreadPoolExecutor p = new ThreadPoolExecutor(1,2,LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10), h);
179 >        assertSame(h, p.getRejectedExecutionHandler());
180 >        joinPool(p);
181 >    }
182 >
183 >    /**
184 >     * setRejectedExecutionHandler sets the handler returned by
185 >     * getRejectedExecutionHandler
186 >     */
187 >    public void testSetRejectedExecutionHandler() {
188 >        ThreadPoolExecutor p = new ThreadPoolExecutor(1,2,LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
189 >        RejectedExecutionHandler h = new NoOpREHandler();
190 >        p.setRejectedExecutionHandler(h);
191 >        assertSame(h, p.getRejectedExecutionHandler());
192 >        joinPool(p);
193 >    }
194 >
195 >
196 >    /**
197 >     * setRejectedExecutionHandler(null) throws NPE
198 >     */
199 >    public void testSetRejectedExecutionHandlerNull() {
200 >        ThreadPoolExecutor p = new ThreadPoolExecutor(1,2,LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
201 >        try {
202 >            p.setRejectedExecutionHandler(null);
203 >            shouldThrow();
204 >        } catch (NullPointerException success) {
205 >        } finally {
206 >            joinPool(p);
207 >        }
208 >    }
209 >
210 >
211      /**
212       *   getLargestPoolSize increases, but doesn't overestimate, when
213       *   multiple threads active
214       */
215 <    public void testGetLargestPoolSize() {
216 <        ThreadPoolExecutor p2 = new ThreadPoolExecutor(2, 2, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
217 <        try {
218 <            assertEquals(0, p2.getLargestPoolSize());
219 <            p2.execute(new MediumRunnable());
220 <            p2.execute(new MediumRunnable());
221 <            Thread.sleep(SHORT_DELAY_MS);
107 <            assertEquals(2, p2.getLargestPoolSize());
108 <        } catch(Exception e){
109 <            unexpectedException();
110 <        }
215 >    public void testGetLargestPoolSize() throws InterruptedException {
216 >        ThreadPoolExecutor p2 = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
217 >        assertEquals(0, p2.getLargestPoolSize());
218 >        p2.execute(new MediumRunnable());
219 >        p2.execute(new MediumRunnable());
220 >        Thread.sleep(SHORT_DELAY_MS);
221 >        assertEquals(2, p2.getLargestPoolSize());
222          joinPool(p2);
223      }
224 <    
224 >
225      /**
226       *   getMaximumPoolSize returns value given in constructor if not
227       *   otherwise set
228       */
229      public void testGetMaximumPoolSize() {
230 <        ThreadPoolExecutor p2 = new ThreadPoolExecutor(2, 2, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
230 >        ThreadPoolExecutor p2 = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
231          assertEquals(2, p2.getMaximumPoolSize());
232          joinPool(p2);
233      }
234 <    
234 >
235      /**
236       *   getPoolSize increases, but doesn't overestimate, when threads
237       *   become active
238       */
239      public void testGetPoolSize() {
240 <        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
240 >        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
241          assertEquals(0, p1.getPoolSize());
242          p1.execute(new MediumRunnable());
243          assertEquals(1, p1.getPoolSize());
244          joinPool(p1);
245      }
246 <    
246 >
247      /**
248 <     *   getTaskCount increases, but doesn't overestimate, when tasks submitted
248 >     *  getTaskCount increases, but doesn't overestimate, when tasks submitted
249       */
250 <    public void testGetTaskCount() {
251 <        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
252 <        try {
253 <            assertEquals(0, p1.getTaskCount());
254 <            p1.execute(new MediumRunnable());
255 <            Thread.sleep(SHORT_DELAY_MS);
145 <            assertEquals(1, p1.getTaskCount());
146 <        } catch(Exception e){
147 <            unexpectedException();
148 <        }
250 >    public void testGetTaskCount() throws InterruptedException {
251 >        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
252 >        assertEquals(0, p1.getTaskCount());
253 >        p1.execute(new MediumRunnable());
254 >        Thread.sleep(SHORT_DELAY_MS);
255 >        assertEquals(1, p1.getTaskCount());
256          joinPool(p1);
257      }
258 <    
258 >
259      /**
260       *   isShutDown is false before shutdown, true after
261       */
262      public void testIsShutdown() {
263 <        
264 <        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
263 >
264 >        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
265          assertFalse(p1.isShutdown());
266 <        p1.shutdown();
266 >        try { p1.shutdown(); } catch (SecurityException ok) { return; }
267          assertTrue(p1.isShutdown());
268          joinPool(p1);
269      }
270  
271 <        
271 >
272      /**
273       *  isTerminated is false before termination, true after
274       */
275 <    public void testIsTerminated() {
276 <        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
275 >    public void testIsTerminated() throws InterruptedException {
276 >        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
277          assertFalse(p1.isTerminated());
278          try {
279              p1.execute(new MediumRunnable());
280          } finally {
281 <            p1.shutdown();
281 >            try { p1.shutdown(); } catch (SecurityException ok) { return; }
282          }
283 <        try {
284 <            assertTrue(p1.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
178 <            assertTrue(p1.isTerminated());
179 <        } catch(Exception e){
180 <            unexpectedException();
181 <        }      
283 >        assertTrue(p1.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
284 >        assertTrue(p1.isTerminated());
285      }
286  
287      /**
288       *  isTerminating is not true when running or when terminated
289       */
290 <    public void testIsTerminating() {
291 <        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
290 >    public void testIsTerminating() throws InterruptedException {
291 >        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
292          assertFalse(p1.isTerminating());
293          try {
294              p1.execute(new SmallRunnable());
295              assertFalse(p1.isTerminating());
296          } finally {
297 <            p1.shutdown();
297 >            try { p1.shutdown(); } catch (SecurityException ok) { return; }
298 >        }
299 >        assertTrue(p1.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
300 >        assertTrue(p1.isTerminated());
301 >        assertFalse(p1.isTerminating());
302 >    }
303 >
304 >    /**
305 >     * getQueue returns the work queue, which contains queued tasks
306 >     */
307 >    public void testGetQueue() throws InterruptedException {
308 >        BlockingQueue<Runnable> q = new ArrayBlockingQueue<Runnable>(10);
309 >        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, LONG_DELAY_MS, MILLISECONDS, q);
310 >        FutureTask[] tasks = new FutureTask[5];
311 >        for (int i = 0; i < 5; i++) {
312 >            tasks[i] = new FutureTask(new MediumPossiblyInterruptedRunnable(), Boolean.TRUE);
313 >            p1.execute(tasks[i]);
314 >        }
315 >        try {
316 >            Thread.sleep(SHORT_DELAY_MS);
317 >            BlockingQueue<Runnable> wq = p1.getQueue();
318 >            assertSame(q, wq);
319 >            assertFalse(wq.contains(tasks[0]));
320 >            assertTrue(wq.contains(tasks[4]));
321 >            for (int i = 1; i < 5; ++i)
322 >                tasks[i].cancel(true);
323 >            p1.shutdownNow();
324 >        } finally {
325 >            joinPool(p1);
326 >        }
327 >    }
328 >
329 >    /**
330 >     * remove(task) removes queued task, and fails to remove active task
331 >     */
332 >    public void testRemove() throws InterruptedException {
333 >        BlockingQueue<Runnable> q = new ArrayBlockingQueue<Runnable>(10);
334 >        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, LONG_DELAY_MS, MILLISECONDS, q);
335 >        FutureTask[] tasks = new FutureTask[5];
336 >        for (int i = 0; i < 5; i++) {
337 >            tasks[i] = new FutureTask(new MediumPossiblyInterruptedRunnable(), Boolean.TRUE);
338 >            p1.execute(tasks[i]);
339          }
340          try {
341 <            assertTrue(p1.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
342 <            assertTrue(p1.isTerminated());
343 <            assertFalse(p1.isTerminating());
344 <        } catch(Exception e){
345 <            unexpectedException();
346 <        }      
341 >            Thread.sleep(SHORT_DELAY_MS);
342 >            assertFalse(p1.remove(tasks[0]));
343 >            assertTrue(q.contains(tasks[4]));
344 >            assertTrue(q.contains(tasks[3]));
345 >            assertTrue(p1.remove(tasks[4]));
346 >            assertFalse(p1.remove(tasks[4]));
347 >            assertFalse(q.contains(tasks[4]));
348 >            assertTrue(q.contains(tasks[3]));
349 >            assertTrue(p1.remove(tasks[3]));
350 >            assertFalse(q.contains(tasks[3]));
351 >        } finally {
352 >            joinPool(p1);
353 >        }
354      }
355  
356      /**
357       *   purge removes cancelled tasks from the queue
358       */
359      public void testPurge() {
360 <        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
361 <        CancellableTask[] tasks = new CancellableTask[5];
362 <        for(int i = 0; i < 5; i++){
363 <            tasks[i] = new CancellableTask(new MediumPossiblyInterruptedRunnable());
360 >        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
361 >        FutureTask[] tasks = new FutureTask[5];
362 >        for (int i = 0; i < 5; i++) {
363 >            tasks[i] = new FutureTask(new MediumPossiblyInterruptedRunnable(), Boolean.TRUE);
364              p1.execute(tasks[i]);
365          }
366          tasks[4].cancel(true);
# Line 224 | Line 375 | public class ThreadPoolExecutorTest exte
375       *  shutDownNow returns a list containing tasks that were not run
376       */
377      public void testShutDownNow() {
378 <        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
378 >        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
379          List l;
380          try {
381 <            for(int i = 0; i < 5; i++)
381 >            for (int i = 0; i < 5; i++)
382                  p1.execute(new MediumPossiblyInterruptedRunnable());
383          }
384          finally {
385 <            l = p1.shutdownNow();
385 >            try {
386 >                l = p1.shutdownNow();
387 >            } catch (SecurityException ok) { return; }
388 >
389          }
390          assertTrue(p1.isShutdown());
391          assertTrue(l.size() <= 4);
392      }
393  
394      // Exception Tests
241    
395  
396 <    /**
397 <     * Constructor throws if corePoolSize argument is less than zero
396 >
397 >    /**
398 >     * Constructor throws if corePoolSize argument is less than zero
399       */
400      public void testConstructor1() {
401          try {
402 <            new ThreadPoolExecutor(-1,1,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
402 >            new ThreadPoolExecutor(-1,1,LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
403              shouldThrow();
404 <        }
251 <        catch (IllegalArgumentException success){}
404 >        } catch (IllegalArgumentException success) {}
405      }
406 <    
407 <    /**
408 <     * Constructor throws if maximumPoolSize is less than zero
406 >
407 >    /**
408 >     * Constructor throws if maximumPoolSize is less than zero
409       */
410      public void testConstructor2() {
411          try {
412 <            new ThreadPoolExecutor(1,-1,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
412 >            new ThreadPoolExecutor(1,-1,LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
413              shouldThrow();
414 <        }
262 <        catch (IllegalArgumentException success){}
414 >        } catch (IllegalArgumentException success) {}
415      }
416 <    
417 <    /**
418 <     * Constructor throws if maximumPoolSize is equal to zero
416 >
417 >    /**
418 >     * Constructor throws if maximumPoolSize is equal to zero
419       */
420      public void testConstructor3() {
421          try {
422 <            new ThreadPoolExecutor(1,0,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
422 >            new ThreadPoolExecutor(1,0,LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
423              shouldThrow();
424 <        }
273 <        catch (IllegalArgumentException success){}
424 >        } catch (IllegalArgumentException success) {}
425      }
426  
427 <    /**
428 <     * Constructor throws if keepAliveTime is less than zero
427 >    /**
428 >     * Constructor throws if keepAliveTime is less than zero
429       */
430      public void testConstructor4() {
431          try {
432 <            new ThreadPoolExecutor(1,2,-1L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
432 >            new ThreadPoolExecutor(1,2,-1L,MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
433              shouldThrow();
434 <        }
284 <        catch (IllegalArgumentException success){}
434 >        } catch (IllegalArgumentException success) {}
435      }
436  
437 <    /**
438 <     * Constructor throws if corePoolSize is greater than the maximumPoolSize
437 >    /**
438 >     * Constructor throws if corePoolSize is greater than the maximumPoolSize
439       */
440      public void testConstructor5() {
441          try {
442 <            new ThreadPoolExecutor(2,1,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
442 >            new ThreadPoolExecutor(2,1,LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
443              shouldThrow();
444 <        }
295 <        catch (IllegalArgumentException success){}
444 >        } catch (IllegalArgumentException success) {}
445      }
446 <        
447 <    /**
448 <     * Constructor throws if workQueue is set to null
446 >
447 >    /**
448 >     * Constructor throws if workQueue is set to null
449       */
450 <    public void testNullPointerException() {
450 >    public void testConstructorNullPointerException() {
451          try {
452 <            new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,null);
452 >            new ThreadPoolExecutor(1,2,LONG_DELAY_MS, MILLISECONDS,null);
453              shouldThrow();
454 <        }
306 <        catch (NullPointerException success){}  
454 >        } catch (NullPointerException success) {}
455      }
308    
456  
457 <    
458 <    /**
459 <     * Constructor throws if corePoolSize argument is less than zero
457 >
458 >
459 >    /**
460 >     * Constructor throws if corePoolSize argument is less than zero
461       */
462      public void testConstructor6() {
463          try {
464 <            new ThreadPoolExecutor(-1,1,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new SimpleThreadFactory());
464 >            new ThreadPoolExecutor(-1,1,LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new SimpleThreadFactory());
465              shouldThrow();
466 <        } catch (IllegalArgumentException success){}
466 >        } catch (IllegalArgumentException success) {}
467      }
468 <    
469 <    /**
470 <     * Constructor throws if maximumPoolSize is less than zero
468 >
469 >    /**
470 >     * Constructor throws if maximumPoolSize is less than zero
471       */
472      public void testConstructor7() {
473          try {
474 <            new ThreadPoolExecutor(1,-1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new SimpleThreadFactory());
474 >            new ThreadPoolExecutor(1,-1,LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new SimpleThreadFactory());
475              shouldThrow();
476 <        }
329 <        catch (IllegalArgumentException success){}
476 >        } catch (IllegalArgumentException success) {}
477      }
478  
479 <    /**
480 <     * Constructor throws if maximumPoolSize is equal to zero
479 >    /**
480 >     * Constructor throws if maximumPoolSize is equal to zero
481       */
482      public void testConstructor8() {
483          try {
484 <            new ThreadPoolExecutor(1,0,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new SimpleThreadFactory());
484 >            new ThreadPoolExecutor(1,0,LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new SimpleThreadFactory());
485              shouldThrow();
486 <        }
340 <        catch (IllegalArgumentException success){}
486 >        } catch (IllegalArgumentException success) {}
487      }
488  
489 <    /**
490 <     * Constructor throws if keepAliveTime is less than zero
489 >    /**
490 >     * Constructor throws if keepAliveTime is less than zero
491       */
492      public void testConstructor9() {
493          try {
494 <            new ThreadPoolExecutor(1,2,-1L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new SimpleThreadFactory());
494 >            new ThreadPoolExecutor(1,2,-1L,MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new SimpleThreadFactory());
495              shouldThrow();
496 <        }
351 <        catch (IllegalArgumentException success){}
496 >        } catch (IllegalArgumentException success) {}
497      }
498  
499 <    /**
500 <     * Constructor throws if corePoolSize is greater than the maximumPoolSize
499 >    /**
500 >     * Constructor throws if corePoolSize is greater than the maximumPoolSize
501       */
502      public void testConstructor10() {
503          try {
504 <            new ThreadPoolExecutor(2,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new SimpleThreadFactory());
504 >            new ThreadPoolExecutor(2,1,LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new SimpleThreadFactory());
505              shouldThrow();
506 <        }
362 <        catch (IllegalArgumentException success){}
506 >        } catch (IllegalArgumentException success) {}
507      }
508  
509 <    /**
510 <     * Constructor throws if workQueue is set to null
509 >    /**
510 >     * Constructor throws if workQueue is set to null
511       */
512 <    public void testNullPointerException2() {
512 >    public void testConstructorNullPointerException2() {
513          try {
514 <            new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,null,new SimpleThreadFactory());
514 >            new ThreadPoolExecutor(1,2,LONG_DELAY_MS, MILLISECONDS,null,new SimpleThreadFactory());
515              shouldThrow();
516 <        }
373 <        catch (NullPointerException success){}  
516 >        } catch (NullPointerException success) {}
517      }
518  
519 <    /**
520 <     * Constructor throws if threadFactory is set to null
519 >    /**
520 >     * Constructor throws if threadFactory is set to null
521       */
522 <    public void testNullPointerException3() {
522 >    public void testConstructorNullPointerException3() {
523          try {
524              ThreadFactory f = null;
525 <            new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10),f);
525 >            new ThreadPoolExecutor(1,2,LONG_DELAY_MS, MILLISECONDS,new ArrayBlockingQueue<Runnable>(10),f);
526              shouldThrow();
527 <        }
385 <        catch (NullPointerException success){}  
527 >        } catch (NullPointerException success) {}
528      }
529 <
530 <    
531 <    /**
532 <     * Constructor throws if corePoolSize argument is less than zero
529 >
530 >
531 >    /**
532 >     * Constructor throws if corePoolSize argument is less than zero
533       */
534      public void testConstructor11() {
535          try {
536 <            new ThreadPoolExecutor(-1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new NoOpREHandler());
536 >            new ThreadPoolExecutor(-1,1,LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new NoOpREHandler());
537              shouldThrow();
538 <        }
397 <        catch (IllegalArgumentException success){}
538 >        } catch (IllegalArgumentException success) {}
539      }
540  
541 <    /**
542 <     * Constructor throws if maximumPoolSize is less than zero
541 >    /**
542 >     * Constructor throws if maximumPoolSize is less than zero
543       */
544      public void testConstructor12() {
545          try {
546 <            new ThreadPoolExecutor(1,-1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new NoOpREHandler());
546 >            new ThreadPoolExecutor(1,-1,LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new NoOpREHandler());
547              shouldThrow();
548 <        }
408 <        catch (IllegalArgumentException success){}
548 >        } catch (IllegalArgumentException success) {}
549      }
550  
551 <    /**
552 <     * Constructor throws if maximumPoolSize is equal to zero
551 >    /**
552 >     * Constructor throws if maximumPoolSize is equal to zero
553       */
554      public void testConstructor13() {
555          try {
556 <            new ThreadPoolExecutor(1,0,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new NoOpREHandler());
556 >            new ThreadPoolExecutor(1,0,LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new NoOpREHandler());
557              shouldThrow();
558 <        }
419 <        catch (IllegalArgumentException success){}
558 >        } catch (IllegalArgumentException success) {}
559      }
560  
561 <    /**
562 <     * Constructor throws if keepAliveTime is less than zero
561 >    /**
562 >     * Constructor throws if keepAliveTime is less than zero
563       */
564      public void testConstructor14() {
565          try {
566 <            new ThreadPoolExecutor(1,2,-1L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new NoOpREHandler());
566 >            new ThreadPoolExecutor(1,2,-1L,MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new NoOpREHandler());
567              shouldThrow();
568 <        }
430 <        catch (IllegalArgumentException success){}
568 >        } catch (IllegalArgumentException success) {}
569      }
570  
571 <    /**
572 <     * Constructor throws if corePoolSize is greater than the maximumPoolSize
571 >    /**
572 >     * Constructor throws if corePoolSize is greater than the maximumPoolSize
573       */
574      public void testConstructor15() {
575          try {
576 <            new ThreadPoolExecutor(2,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new NoOpREHandler());
576 >            new ThreadPoolExecutor(2,1,LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new NoOpREHandler());
577              shouldThrow();
578 <        }
441 <        catch (IllegalArgumentException success){}
578 >        } catch (IllegalArgumentException success) {}
579      }
580  
581 <    /**
582 <     * Constructor throws if workQueue is set to null
581 >    /**
582 >     * Constructor throws if workQueue is set to null
583       */
584 <    public void testNullPointerException4() {
584 >    public void testConstructorNullPointerException4() {
585          try {
586 <            new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,null,new NoOpREHandler());
586 >            new ThreadPoolExecutor(1,2,LONG_DELAY_MS, MILLISECONDS,null,new NoOpREHandler());
587              shouldThrow();
588 <        }
452 <        catch (NullPointerException success){}  
588 >        } catch (NullPointerException success) {}
589      }
590  
591 <    /**
592 <     * Constructor throws if handler is set to null
591 >    /**
592 >     * Constructor throws if handler is set to null
593       */
594 <    public void testNullPointerException5() {
594 >    public void testConstructorNullPointerException5() {
595          try {
596              RejectedExecutionHandler r = null;
597 <            new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10),r);
597 >            new ThreadPoolExecutor(1,2,LONG_DELAY_MS, MILLISECONDS,new ArrayBlockingQueue<Runnable>(10),r);
598              shouldThrow();
599 <        }
464 <        catch (NullPointerException success){}  
599 >        } catch (NullPointerException success) {}
600      }
601  
602 <    
603 <    /**
604 <     * Constructor throws if corePoolSize argument is less than zero
602 >
603 >    /**
604 >     * Constructor throws if corePoolSize argument is less than zero
605       */
606      public void testConstructor16() {
607          try {
608 <            new ThreadPoolExecutor(-1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new SimpleThreadFactory(),new NoOpREHandler());
608 >            new ThreadPoolExecutor(-1,1,LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new SimpleThreadFactory(),new NoOpREHandler());
609              shouldThrow();
610 <        }
476 <        catch (IllegalArgumentException success){}
610 >        } catch (IllegalArgumentException success) {}
611      }
612  
613 <    /**
614 <     * Constructor throws if maximumPoolSize is less than zero
613 >    /**
614 >     * Constructor throws if maximumPoolSize is less than zero
615       */
616      public void testConstructor17() {
617          try {
618 <            new ThreadPoolExecutor(1,-1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new SimpleThreadFactory(),new NoOpREHandler());
618 >            new ThreadPoolExecutor(1,-1,LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new SimpleThreadFactory(),new NoOpREHandler());
619              shouldThrow();
620 <        }
487 <        catch (IllegalArgumentException success){}
620 >        } catch (IllegalArgumentException success) {}
621      }
622  
623 <    /**
624 <     * Constructor throws if maximumPoolSize is equal to zero
623 >    /**
624 >     * Constructor throws if maximumPoolSize is equal to zero
625       */
626      public void testConstructor18() {
627          try {
628 <            new ThreadPoolExecutor(1,0,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new SimpleThreadFactory(),new NoOpREHandler());
628 >            new ThreadPoolExecutor(1,0,LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new SimpleThreadFactory(),new NoOpREHandler());
629              shouldThrow();
630 <        }
498 <        catch (IllegalArgumentException success){}
630 >        } catch (IllegalArgumentException success) {}
631      }
632  
633 <    /**
634 <     * Constructor throws if keepAliveTime is less than zero
633 >    /**
634 >     * Constructor throws if keepAliveTime is less than zero
635       */
636      public void testConstructor19() {
637          try {
638 <            new ThreadPoolExecutor(1,2,-1L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new SimpleThreadFactory(),new NoOpREHandler());
638 >            new ThreadPoolExecutor(1,2,-1L,MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new SimpleThreadFactory(),new NoOpREHandler());
639              shouldThrow();
640 <        }
509 <        catch (IllegalArgumentException success){}
640 >        } catch (IllegalArgumentException success) {}
641      }
642  
643 <    /**
644 <     * Constructor throws if corePoolSize is greater than the maximumPoolSize
643 >    /**
644 >     * Constructor throws if corePoolSize is greater than the maximumPoolSize
645       */
646      public void testConstructor20() {
647          try {
648 <            new ThreadPoolExecutor(2,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new SimpleThreadFactory(),new NoOpREHandler());
648 >            new ThreadPoolExecutor(2,1,LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new SimpleThreadFactory(),new NoOpREHandler());
649              shouldThrow();
650 <        }
520 <        catch (IllegalArgumentException success){}
650 >        } catch (IllegalArgumentException success) {}
651      }
652  
653 <    /**
654 <     * Constructor throws if workQueue is set to null
653 >    /**
654 >     * Constructor throws if workQueue is set to null
655       */
656 <    public void testNullPointerException6() {
656 >    public void testConstructorNullPointerException6() {
657          try {
658 <            new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,null,new SimpleThreadFactory(),new NoOpREHandler());
658 >            new ThreadPoolExecutor(1,2,LONG_DELAY_MS, MILLISECONDS,null,new SimpleThreadFactory(),new NoOpREHandler());
659              shouldThrow();
660 <        }
531 <        catch (NullPointerException success){}  
660 >        } catch (NullPointerException success) {}
661      }
662  
663 <    /**
664 <     * Constructor throws if handler is set to null
663 >    /**
664 >     * Constructor throws if handler is set to null
665       */
666 <    public void testNullPointerException7() {
666 >    public void testConstructorNullPointerException7() {
667          try {
668              RejectedExecutionHandler r = null;
669 <            new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10),new SimpleThreadFactory(),r);
669 >            new ThreadPoolExecutor(1,2,LONG_DELAY_MS, MILLISECONDS,new ArrayBlockingQueue<Runnable>(10),new SimpleThreadFactory(),r);
670              shouldThrow();
671 <        }
543 <        catch (NullPointerException success){}  
671 >        } catch (NullPointerException success) {}
672      }
673  
674 <    /**
675 <     * Constructor throws if ThreadFactory is set top null
674 >    /**
675 >     * Constructor throws if ThreadFactory is set top null
676       */
677 <    public void testNullPointerException8() {
677 >    public void testConstructorNullPointerException8() {
678          try {
679              ThreadFactory f = null;
680 <            new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10),f,new NoOpREHandler());
680 >            new ThreadPoolExecutor(1,2,LONG_DELAY_MS, MILLISECONDS,new ArrayBlockingQueue<Runnable>(10),f,new NoOpREHandler());
681              shouldThrow();
682 +        } catch (NullPointerException success) {}
683 +    }
684 +
685 +
686 +    /**
687 +     *  execute throws RejectedExecutionException
688 +     *  if saturated.
689 +     */
690 +    public void testSaturatedExecute() {
691 +        ThreadPoolExecutor p =
692 +            new ThreadPoolExecutor(1, 1,
693 +                                   LONG_DELAY_MS, MILLISECONDS,
694 +                                   new ArrayBlockingQueue<Runnable>(1));
695 +        try {
696 +            for (int i = 0; i < 2; ++i)
697 +                p.execute(new MediumRunnable());
698 +            for (int i = 0; i < 2; ++i) {
699 +                try {
700 +                    p.execute(new MediumRunnable());
701 +                    shouldThrow();
702 +                } catch (RejectedExecutionException success) {}
703 +            }
704 +        } finally {
705 +            joinPool(p);
706          }
555        catch (NullPointerException successdn8){}  
707      }
557    
708  
709      /**
710 <     *  execute throws RejectedExecutionException if shutdown
710 >     *  executor using CallerRunsPolicy runs task if saturated.
711       */
712 <    public void testRejectedExecutionException() {
713 <        ThreadPoolExecutor tpe = null;
712 >    public void testSaturatedExecute2() {
713 >        RejectedExecutionHandler h = new ThreadPoolExecutor.CallerRunsPolicy();
714 >        ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(1), h);
715          try {
716 <            tpe = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(1));
717 <        } catch(Exception e){}
718 <        tpe.shutdown();
716 >
717 >            TrackedNoOpRunnable[] tasks = new TrackedNoOpRunnable[5];
718 >            for (int i = 0; i < 5; ++i) {
719 >                tasks[i] = new TrackedNoOpRunnable();
720 >            }
721 >            TrackedLongRunnable mr = new TrackedLongRunnable();
722 >            p.execute(mr);
723 >            for (int i = 0; i < 5; ++i) {
724 >                p.execute(tasks[i]);
725 >            }
726 >            for (int i = 1; i < 5; ++i) {
727 >                assertTrue(tasks[i].done);
728 >            }
729 >            try { p.shutdownNow(); } catch (SecurityException ok) { return; }
730 >        } finally {
731 >            joinPool(p);
732 >        }
733 >    }
734 >
735 >    /**
736 >     *  executor using DiscardPolicy drops task if saturated.
737 >     */
738 >    public void testSaturatedExecute3() {
739 >        RejectedExecutionHandler h = new ThreadPoolExecutor.DiscardPolicy();
740 >        ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(1), h);
741 >        try {
742 >
743 >            TrackedNoOpRunnable[] tasks = new TrackedNoOpRunnable[5];
744 >            for (int i = 0; i < 5; ++i) {
745 >                tasks[i] = new TrackedNoOpRunnable();
746 >            }
747 >            p.execute(new TrackedLongRunnable());
748 >            for (int i = 0; i < 5; ++i) {
749 >                p.execute(tasks[i]);
750 >            }
751 >            for (int i = 0; i < 5; ++i) {
752 >                assertFalse(tasks[i].done);
753 >            }
754 >            try { p.shutdownNow(); } catch (SecurityException ok) { return; }
755 >        } finally {
756 >            joinPool(p);
757 >        }
758 >    }
759 >
760 >    /**
761 >     *  executor using DiscardOldestPolicy drops oldest task if saturated.
762 >     */
763 >    public void testSaturatedExecute4() {
764 >        RejectedExecutionHandler h = new ThreadPoolExecutor.DiscardOldestPolicy();
765 >        ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(1), h);
766 >        try {
767 >            p.execute(new TrackedLongRunnable());
768 >            TrackedLongRunnable r2 = new TrackedLongRunnable();
769 >            p.execute(r2);
770 >            assertTrue(p.getQueue().contains(r2));
771 >            TrackedNoOpRunnable r3 = new TrackedNoOpRunnable();
772 >            p.execute(r3);
773 >            assertFalse(p.getQueue().contains(r2));
774 >            assertTrue(p.getQueue().contains(r3));
775 >            try { p.shutdownNow(); } catch (SecurityException ok) { return; }
776 >        } finally {
777 >            joinPool(p);
778 >        }
779 >    }
780 >
781 >    /**
782 >     *  execute throws RejectedExecutionException if shutdown
783 >     */
784 >    public void testRejectedExecutionExceptionOnShutdown() {
785 >        ThreadPoolExecutor tpe =
786 >            new ThreadPoolExecutor(1,1,LONG_DELAY_MS, MILLISECONDS,new ArrayBlockingQueue<Runnable>(1));
787 >        try { tpe.shutdown(); } catch (SecurityException ok) { return; }
788          try {
789              tpe.execute(new NoOpRunnable());
790              shouldThrow();
791 <        } catch(RejectedExecutionException success){}
792 <        
791 >        } catch (RejectedExecutionException success) {}
792 >
793          joinPool(tpe);
794      }
795  
796      /**
797 <     *  execute throws RejectedExecutionException
578 <     *  if saturated.
797 >     *  execute using CallerRunsPolicy drops task on shutdown
798       */
799 <    public void testSaturatedExecute() {
800 <        ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1));
801 <        try {
802 <            
803 <            for(int i = 0; i < 5; ++i){
804 <                p.execute(new MediumRunnable());
805 <            }
806 <            shouldThrow();
807 <        } catch(RejectedExecutionException success){}
808 <        joinPool(p);
799 >    public void testCallerRunsOnShutdown() {
800 >        RejectedExecutionHandler h = new ThreadPoolExecutor.CallerRunsPolicy();
801 >        ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(1), h);
802 >
803 >        try { p.shutdown(); } catch (SecurityException ok) { return; }
804 >        try {
805 >            TrackedNoOpRunnable r = new TrackedNoOpRunnable();
806 >            p.execute(r);
807 >            assertFalse(r.done);
808 >        } finally {
809 >            joinPool(p);
810 >        }
811 >    }
812 >
813 >    /**
814 >     *  execute using DiscardPolicy drops task on shutdown
815 >     */
816 >    public void testDiscardOnShutdown() {
817 >        RejectedExecutionHandler h = new ThreadPoolExecutor.DiscardPolicy();
818 >        ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(1), h);
819 >
820 >        try { p.shutdown(); } catch (SecurityException ok) { return; }
821 >        try {
822 >            TrackedNoOpRunnable r = new TrackedNoOpRunnable();
823 >            p.execute(r);
824 >            assertFalse(r.done);
825 >        } finally {
826 >            joinPool(p);
827 >        }
828      }
829  
830 +
831 +    /**
832 +     *  execute using DiscardOldestPolicy drops task on shutdown
833 +     */
834 +    public void testDiscardOldestOnShutdown() {
835 +        RejectedExecutionHandler h = new ThreadPoolExecutor.DiscardOldestPolicy();
836 +        ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(1), h);
837 +
838 +        try { p.shutdown(); } catch (SecurityException ok) { return; }
839 +        try {
840 +            TrackedNoOpRunnable r = new TrackedNoOpRunnable();
841 +            p.execute(r);
842 +            assertFalse(r.done);
843 +        } finally {
844 +            joinPool(p);
845 +        }
846 +    }
847 +
848 +
849      /**
850       *  execute (null) throws NPE
851       */
852      public void testExecuteNull() {
853 <        ThreadPoolExecutor tpe = null;
853 >        ThreadPoolExecutor tpe = new ThreadPoolExecutor(1,2,LONG_DELAY_MS, MILLISECONDS,new ArrayBlockingQueue<Runnable>(10));
854          try {
598            tpe = new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10));
855              tpe.execute(null);
856              shouldThrow();
857 <        } catch(NullPointerException success){}
858 <        
857 >        } catch (NullPointerException success) {}
858 >
859          joinPool(tpe);
860      }
861 <    
861 >
862      /**
863 <     *  setCorePoolSize of netaitev value throws IllegalArgumentException
863 >     *  setCorePoolSize of negative value throws IllegalArgumentException
864       */
865      public void testCorePoolSizeIllegalArgumentException() {
866 <        ThreadPoolExecutor tpe = null;
867 <        try {
868 <            tpe = new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10));
869 <        } catch(Exception e){}
866 >        ThreadPoolExecutor tpe =
867 >            new ThreadPoolExecutor(1, 2,
868 >                                   LONG_DELAY_MS, MILLISECONDS,
869 >                                   new ArrayBlockingQueue<Runnable>(10));
870          try {
871              tpe.setCorePoolSize(-1);
872              shouldThrow();
873 <        } catch(IllegalArgumentException success){
873 >        } catch (IllegalArgumentException success) {
874          } finally {
875 <            tpe.shutdown();
875 >            try { tpe.shutdown(); } catch (SecurityException ok) { return; }
876          }
877          joinPool(tpe);
878 <    }  
878 >    }
879  
880      /**
881       *  setMaximumPoolSize(int) throws IllegalArgumentException if
882       *  given a value less the core pool size
883 <     */  
883 >     */
884      public void testMaximumPoolSizeIllegalArgumentException() {
885 <        ThreadPoolExecutor tpe = null;
886 <        try {
887 <            tpe = new ThreadPoolExecutor(2,3,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10));
888 <        } catch(Exception e){}
885 >        ThreadPoolExecutor tpe =
886 >            new ThreadPoolExecutor(2, 3,
887 >                                   LONG_DELAY_MS, MILLISECONDS,
888 >                                   new ArrayBlockingQueue<Runnable>(10));
889          try {
890              tpe.setMaximumPoolSize(1);
891              shouldThrow();
892 <        } catch(IllegalArgumentException success){
892 >        } catch (IllegalArgumentException success) {
893          } finally {
894 <            tpe.shutdown();
894 >            try { tpe.shutdown(); } catch (SecurityException ok) { return; }
895          }
896          joinPool(tpe);
897      }
898 <    
898 >
899      /**
900       *  setMaximumPoolSize throws IllegalArgumentException
901       *  if given a negative value
902       */
903      public void testMaximumPoolSizeIllegalArgumentException2() {
904 <        ThreadPoolExecutor tpe = null;
905 <        try {
906 <            tpe = new ThreadPoolExecutor(2,3,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10));
907 <        } catch(Exception e){}
904 >        ThreadPoolExecutor tpe =
905 >            new ThreadPoolExecutor(2, 3,
906 >                                   LONG_DELAY_MS, MILLISECONDS,
907 >                                   new ArrayBlockingQueue<Runnable>(10));
908          try {
909              tpe.setMaximumPoolSize(-1);
910              shouldThrow();
911 <        } catch(IllegalArgumentException success){
911 >        } catch (IllegalArgumentException success) {
912          } finally {
913 <            tpe.shutdown();
913 >            try { tpe.shutdown(); } catch (SecurityException ok) { return; }
914          }
915          joinPool(tpe);
916      }
917 <    
917 >
918  
919      /**
920       *  setKeepAliveTime  throws IllegalArgumentException
921       *  when given a negative value
922       */
923      public void testKeepAliveTimeIllegalArgumentException() {
924 <        ThreadPoolExecutor tpe = null;
925 <        try {
926 <            tpe = new ThreadPoolExecutor(2,3,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10));
927 <        } catch(Exception e){}
672 <        
924 >        ThreadPoolExecutor tpe =
925 >            new ThreadPoolExecutor(2, 3,
926 >                                   LONG_DELAY_MS, MILLISECONDS,
927 >                                   new ArrayBlockingQueue<Runnable>(10));
928          try {
929 <            tpe.setKeepAliveTime(-1,TimeUnit.MILLISECONDS);
929 >            tpe.setKeepAliveTime(-1,MILLISECONDS);
930              shouldThrow();
931 <        } catch(IllegalArgumentException success){
931 >        } catch (IllegalArgumentException success) {
932          } finally {
933 <            tpe.shutdown();
933 >            try { tpe.shutdown(); } catch (SecurityException ok) { return; }
934          }
935          joinPool(tpe);
936      }
937 <  
937 >
938 >    /**
939 >     * terminated() is called on termination
940 >     */
941 >    public void testTerminated() {
942 >        ExtendedTPE tpe = new ExtendedTPE();
943 >        try { tpe.shutdown(); } catch (SecurityException ok) { return; }
944 >        assertTrue(tpe.terminatedCalled);
945 >        joinPool(tpe);
946 >    }
947 >
948 >    /**
949 >     * beforeExecute and afterExecute are called when executing task
950 >     */
951 >    public void testBeforeAfter() throws InterruptedException {
952 >        ExtendedTPE tpe = new ExtendedTPE();
953 >        try {
954 >            TrackedNoOpRunnable r = new TrackedNoOpRunnable();
955 >            tpe.execute(r);
956 >            Thread.sleep(SHORT_DELAY_MS);
957 >            assertTrue(r.done);
958 >            assertTrue(tpe.beforeCalled);
959 >            assertTrue(tpe.afterCalled);
960 >            try { tpe.shutdown(); } catch (SecurityException ok) { return; }
961 >        } finally {
962 >            joinPool(tpe);
963 >        }
964 >    }
965 >
966 >    /**
967 >     * completed submit of callable returns result
968 >     */
969 >    public void testSubmitCallable() throws Exception {
970 >        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
971 >        try {
972 >            Future<String> future = e.submit(new StringTask());
973 >            String result = future.get();
974 >            assertSame(TEST_STRING, result);
975 >        } finally {
976 >            joinPool(e);
977 >        }
978 >    }
979 >
980 >    /**
981 >     * completed submit of runnable returns successfully
982 >     */
983 >    public void testSubmitRunnable() throws Exception {
984 >        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
985 >        try {
986 >            Future<?> future = e.submit(new NoOpRunnable());
987 >            future.get();
988 >            assertTrue(future.isDone());
989 >        } finally {
990 >            joinPool(e);
991 >        }
992 >    }
993 >
994 >    /**
995 >     * completed submit of (runnable, result) returns result
996 >     */
997 >    public void testSubmitRunnable2() throws Exception {
998 >        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
999 >        try {
1000 >            Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING);
1001 >            String result = future.get();
1002 >            assertSame(TEST_STRING, result);
1003 >        } finally {
1004 >            joinPool(e);
1005 >        }
1006 >    }
1007 >
1008 >
1009 >    /**
1010 >     * invokeAny(null) throws NPE
1011 >     */
1012 >    public void testInvokeAny1() throws Exception {
1013 >        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1014 >        try {
1015 >            e.invokeAny(null);
1016 >            shouldThrow();
1017 >        } catch (NullPointerException success) {
1018 >        } finally {
1019 >            joinPool(e);
1020 >        }
1021 >    }
1022 >
1023 >    /**
1024 >     * invokeAny(empty collection) throws IAE
1025 >     */
1026 >    public void testInvokeAny2() throws Exception {
1027 >        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1028 >        try {
1029 >            e.invokeAny(new ArrayList<Callable<String>>());
1030 >            shouldThrow();
1031 >        } catch (IllegalArgumentException success) {
1032 >        } finally {
1033 >            joinPool(e);
1034 >        }
1035 >    }
1036 >
1037 >    /**
1038 >     * invokeAny(c) throws NPE if c has null elements
1039 >     */
1040 >    public void testInvokeAny3() throws Exception {
1041 >        final CountDownLatch latch = new CountDownLatch(1);
1042 >        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1043 >        try {
1044 >            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1045 >            l.add(new Callable<String>() {
1046 >                      public String call() {
1047 >                          try {
1048 >                              latch.await();
1049 >                          } catch (InterruptedException ok) {}
1050 >                          return TEST_STRING;
1051 >                      }});
1052 >            l.add(null);
1053 >            e.invokeAny(l);
1054 >            shouldThrow();
1055 >        } catch (NullPointerException success) {
1056 >        } finally {
1057 >            latch.countDown();
1058 >            joinPool(e);
1059 >        }
1060 >    }
1061 >
1062 >    /**
1063 >     * invokeAny(c) throws ExecutionException if no task completes
1064 >     */
1065 >    public void testInvokeAny4() throws Exception {
1066 >        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1067 >        try {
1068 >            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1069 >            l.add(new NPETask());
1070 >            e.invokeAny(l);
1071 >            shouldThrow();
1072 >        } catch (ExecutionException success) {
1073 >            assertTrue(success.getCause() instanceof NullPointerException);
1074 >        } finally {
1075 >            joinPool(e);
1076 >        }
1077 >    }
1078 >
1079 >    /**
1080 >     * invokeAny(c) returns result of some task
1081 >     */
1082 >    public void testInvokeAny5() throws Exception {
1083 >        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1084 >        try {
1085 >            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1086 >            l.add(new StringTask());
1087 >            l.add(new StringTask());
1088 >            String result = e.invokeAny(l);
1089 >            assertSame(TEST_STRING, result);
1090 >        } finally {
1091 >            joinPool(e);
1092 >        }
1093 >    }
1094 >
1095 >    /**
1096 >     * invokeAll(null) throws NPE
1097 >     */
1098 >    public void testInvokeAll1() throws Exception {
1099 >        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1100 >        try {
1101 >            e.invokeAll(null);
1102 >            shouldThrow();
1103 >        } catch (NullPointerException success) {
1104 >        } finally {
1105 >            joinPool(e);
1106 >        }
1107 >    }
1108 >
1109 >    /**
1110 >     * invokeAll(empty collection) returns empty collection
1111 >     */
1112 >    public void testInvokeAll2() throws InterruptedException {
1113 >        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1114 >        try {
1115 >            List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>());
1116 >            assertTrue(r.isEmpty());
1117 >        } finally {
1118 >            joinPool(e);
1119 >        }
1120 >    }
1121 >
1122 >    /**
1123 >     * invokeAll(c) throws NPE if c has null elements
1124 >     */
1125 >    public void testInvokeAll3() throws Exception {
1126 >        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1127 >        try {
1128 >            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1129 >            l.add(new StringTask());
1130 >            l.add(null);
1131 >            e.invokeAll(l);
1132 >            shouldThrow();
1133 >        } catch (NullPointerException success) {
1134 >        } finally {
1135 >            joinPool(e);
1136 >        }
1137 >    }
1138 >
1139 >    /**
1140 >     * get of element of invokeAll(c) throws exception on failed task
1141 >     */
1142 >    public void testInvokeAll4() throws Exception {
1143 >        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1144 >        try {
1145 >            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1146 >            l.add(new NPETask());
1147 >            List<Future<String>> result = e.invokeAll(l);
1148 >            assertEquals(1, result.size());
1149 >            for (Future<String> future : result) {
1150 >                try {
1151 >                    future.get();
1152 >                    shouldThrow();
1153 >                } catch (ExecutionException success) {
1154 >                    Throwable cause = success.getCause();
1155 >                    assertTrue(cause instanceof NullPointerException);
1156 >                }
1157 >            }
1158 >        } finally {
1159 >            joinPool(e);
1160 >        }
1161 >    }
1162 >
1163 >    /**
1164 >     * invokeAll(c) returns results of all completed tasks
1165 >     */
1166 >    public void testInvokeAll5() throws Exception {
1167 >        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1168 >        try {
1169 >            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1170 >            l.add(new StringTask());
1171 >            l.add(new StringTask());
1172 >            List<Future<String>> result = e.invokeAll(l);
1173 >            assertEquals(2, result.size());
1174 >            for (Future<String> future : result)
1175 >                assertSame(TEST_STRING, future.get());
1176 >        } finally {
1177 >            joinPool(e);
1178 >        }
1179 >    }
1180 >
1181 >
1182 >
1183 >    /**
1184 >     * timed invokeAny(null) throws NPE
1185 >     */
1186 >    public void testTimedInvokeAny1() throws Exception {
1187 >        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1188 >        try {
1189 >            e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS);
1190 >            shouldThrow();
1191 >        } catch (NullPointerException success) {
1192 >        } finally {
1193 >            joinPool(e);
1194 >        }
1195 >    }
1196 >
1197 >    /**
1198 >     * timed invokeAny(,,null) throws NPE
1199 >     */
1200 >    public void testTimedInvokeAnyNullTimeUnit() throws Exception {
1201 >        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1202 >        try {
1203 >            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1204 >            l.add(new StringTask());
1205 >            e.invokeAny(l, MEDIUM_DELAY_MS, null);
1206 >            shouldThrow();
1207 >        } catch (NullPointerException success) {
1208 >        } finally {
1209 >            joinPool(e);
1210 >        }
1211 >    }
1212 >
1213 >    /**
1214 >     * timed invokeAny(empty collection) throws IAE
1215 >     */
1216 >    public void testTimedInvokeAny2() throws Exception {
1217 >        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1218 >        try {
1219 >            e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
1220 >            shouldThrow();
1221 >        } catch (IllegalArgumentException success) {
1222 >        } finally {
1223 >            joinPool(e);
1224 >        }
1225 >    }
1226 >
1227 >    /**
1228 >     * timed invokeAny(c) throws NPE if c has null elements
1229 >     */
1230 >    public void testTimedInvokeAny3() throws Exception {
1231 >        final CountDownLatch latch = new CountDownLatch(1);
1232 >        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1233 >        try {
1234 >            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1235 >            l.add(new Callable<String>() {
1236 >                      public String call() {
1237 >                          try {
1238 >                              latch.await();
1239 >                          } catch (InterruptedException ok) {}
1240 >                          return TEST_STRING;
1241 >                      }});
1242 >            l.add(null);
1243 >            e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1244 >            shouldThrow();
1245 >        } catch (NullPointerException success) {
1246 >        } finally {
1247 >            latch.countDown();
1248 >            joinPool(e);
1249 >        }
1250 >    }
1251 >
1252 >    /**
1253 >     * timed invokeAny(c) throws ExecutionException if no task completes
1254 >     */
1255 >    public void testTimedInvokeAny4() throws Exception {
1256 >        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1257 >        try {
1258 >            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1259 >            l.add(new NPETask());
1260 >            e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1261 >            shouldThrow();
1262 >        } catch (ExecutionException success) {
1263 >            assertTrue(success.getCause() instanceof NullPointerException);
1264 >        } finally {
1265 >            joinPool(e);
1266 >        }
1267 >    }
1268 >
1269 >    /**
1270 >     * timed invokeAny(c) returns result of some task
1271 >     */
1272 >    public void testTimedInvokeAny5() throws Exception {
1273 >        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1274 >        try {
1275 >            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1276 >            l.add(new StringTask());
1277 >            l.add(new StringTask());
1278 >            String result = e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1279 >            assertSame(TEST_STRING, result);
1280 >        } finally {
1281 >            joinPool(e);
1282 >        }
1283 >    }
1284 >
1285 >    /**
1286 >     * timed invokeAll(null) throws NPE
1287 >     */
1288 >    public void testTimedInvokeAll1() throws Exception {
1289 >        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1290 >        try {
1291 >            e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS);
1292 >            shouldThrow();
1293 >        } catch (NullPointerException success) {
1294 >        } finally {
1295 >            joinPool(e);
1296 >        }
1297 >    }
1298 >
1299 >    /**
1300 >     * timed invokeAll(,,null) throws NPE
1301 >     */
1302 >    public void testTimedInvokeAllNullTimeUnit() throws Exception {
1303 >        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1304 >        try {
1305 >            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1306 >            l.add(new StringTask());
1307 >            e.invokeAll(l, MEDIUM_DELAY_MS, null);
1308 >            shouldThrow();
1309 >        } catch (NullPointerException success) {
1310 >        } finally {
1311 >            joinPool(e);
1312 >        }
1313 >    }
1314 >
1315 >    /**
1316 >     * timed invokeAll(empty collection) returns empty collection
1317 >     */
1318 >    public void testTimedInvokeAll2() throws InterruptedException {
1319 >        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1320 >        try {
1321 >            List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
1322 >            assertTrue(r.isEmpty());
1323 >        } finally {
1324 >            joinPool(e);
1325 >        }
1326 >    }
1327 >
1328 >    /**
1329 >     * timed invokeAll(c) throws NPE if c has null elements
1330 >     */
1331 >    public void testTimedInvokeAll3() throws Exception {
1332 >        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1333 >        try {
1334 >            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1335 >            l.add(new StringTask());
1336 >            l.add(null);
1337 >            e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1338 >            shouldThrow();
1339 >        } catch (NullPointerException success) {
1340 >        } finally {
1341 >            joinPool(e);
1342 >        }
1343 >    }
1344 >
1345 >    /**
1346 >     * get of element of invokeAll(c) throws exception on failed task
1347 >     */
1348 >    public void testTimedInvokeAll4() throws Exception {
1349 >        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1350 >        try {
1351 >            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1352 >            l.add(new NPETask());
1353 >            List<Future<String>> result = e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1354 >            assertEquals(1, result.size());
1355 >            for (Future<String> future : result)
1356 >                future.get();
1357 >            shouldThrow();
1358 >        } catch (ExecutionException success) {
1359 >            assertTrue(success.getCause() instanceof NullPointerException);
1360 >        } finally {
1361 >            joinPool(e);
1362 >        }
1363 >    }
1364 >
1365 >    /**
1366 >     * timed invokeAll(c) returns results of all completed tasks
1367 >     */
1368 >    public void testTimedInvokeAll5() throws Exception {
1369 >        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1370 >        try {
1371 >            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1372 >            l.add(new StringTask());
1373 >            l.add(new StringTask());
1374 >            List<Future<String>> result = e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1375 >            assertEquals(2, result.size());
1376 >            for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
1377 >                assertSame(TEST_STRING, it.next().get());
1378 >        } finally {
1379 >            joinPool(e);
1380 >        }
1381 >    }
1382 >
1383 >    /**
1384 >     * timed invokeAll(c) cancels tasks not completed by timeout
1385 >     */
1386 >    public void testTimedInvokeAll6() throws Exception {
1387 >        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1388 >        try {
1389 >            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1390 >            l.add(new StringTask());
1391 >            l.add(Executors.callable(new MediumPossiblyInterruptedRunnable(), TEST_STRING));
1392 >            l.add(new StringTask());
1393 >            List<Future<String>> result = e.invokeAll(l, SHORT_DELAY_MS, MILLISECONDS);
1394 >            assertEquals(3, result.size());
1395 >            Iterator<Future<String>> it = result.iterator();
1396 >            Future<String> f1 = it.next();
1397 >            Future<String> f2 = it.next();
1398 >            Future<String> f3 = it.next();
1399 >            assertTrue(f1.isDone());
1400 >            assertTrue(f2.isDone());
1401 >            assertTrue(f3.isDone());
1402 >            assertFalse(f1.isCancelled());
1403 >            assertTrue(f2.isCancelled());
1404 >        } finally {
1405 >            joinPool(e);
1406 >        }
1407 >    }
1408 >
1409 >    /**
1410 >     * Execution continues if there is at least one thread even if
1411 >     * thread factory fails to create more
1412 >     */
1413 >    public void testFailingThreadFactory() throws InterruptedException {
1414 >        ExecutorService e = new ThreadPoolExecutor(100, 100, LONG_DELAY_MS, MILLISECONDS, new LinkedBlockingQueue<Runnable>(), new FailingThreadFactory());
1415 >        try {
1416 >            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1417 >            for (int k = 0; k < 100; ++k) {
1418 >                e.execute(new NoOpRunnable());
1419 >            }
1420 >            Thread.sleep(LONG_DELAY_MS);
1421 >        } finally {
1422 >            joinPool(e);
1423 >        }
1424 >    }
1425 >
1426 >    /**
1427 >     * allowsCoreThreadTimeOut is by default false.
1428 >     */
1429 >    public void testAllowsCoreThreadTimeOut() {
1430 >        ThreadPoolExecutor tpe = new ThreadPoolExecutor(2, 2, 1000, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1431 >        assertFalse(tpe.allowsCoreThreadTimeOut());
1432 >        joinPool(tpe);
1433 >    }
1434 >
1435 >    /**
1436 >     * allowCoreThreadTimeOut(true) causes idle threads to time out
1437 >     */
1438 >    public void testAllowCoreThreadTimeOut_true() throws InterruptedException {
1439 >        ThreadPoolExecutor tpe = new ThreadPoolExecutor(2, 10, 10, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1440 >        tpe.allowCoreThreadTimeOut(true);
1441 >        tpe.execute(new NoOpRunnable());
1442 >        try {
1443 >            Thread.sleep(MEDIUM_DELAY_MS);
1444 >            assertEquals(0, tpe.getPoolSize());
1445 >        } finally {
1446 >            joinPool(tpe);
1447 >        }
1448 >    }
1449 >
1450 >    /**
1451 >     * allowCoreThreadTimeOut(false) causes idle threads not to time out
1452 >     */
1453 >    public void testAllowCoreThreadTimeOut_false() throws InterruptedException {
1454 >        ThreadPoolExecutor tpe = new ThreadPoolExecutor(2, 10, 10, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1455 >        tpe.allowCoreThreadTimeOut(false);
1456 >        tpe.execute(new NoOpRunnable());
1457 >        try {
1458 >            Thread.sleep(MEDIUM_DELAY_MS);
1459 >            assertTrue(tpe.getPoolSize() >= 1);
1460 >        } finally {
1461 >            joinPool(tpe);
1462 >        }
1463 >    }
1464 >
1465 >    /**
1466 >     * execute allows the same task to be submitted multiple times, even
1467 >     * if rejected
1468 >     */
1469 >    public void testRejectedRecycledTask() throws InterruptedException {
1470 >        final int nTasks = 1000;
1471 >        final AtomicInteger nRun = new AtomicInteger(0);
1472 >        final Runnable recycledTask = new Runnable() {
1473 >                public void run() {
1474 >                    nRun.getAndIncrement();
1475 >                } };
1476 >        final ThreadPoolExecutor p =
1477 >            new ThreadPoolExecutor(1, 30, 60, TimeUnit.SECONDS,
1478 >                                   new ArrayBlockingQueue(30));
1479 >        try {
1480 >            for (int i = 0; i < nTasks; ++i) {
1481 >                for (;;) {
1482 >                    try {
1483 >                        p.execute(recycledTask);
1484 >                        break;
1485 >                    }
1486 >                    catch (RejectedExecutionException ignore) {
1487 >                    }
1488 >                }
1489 >            }
1490 >            Thread.sleep(5000); // enough time to run all tasks
1491 >            assertEquals(nRun.get(), nTasks);
1492 >        } finally {
1493 >            p.shutdown();
1494 >        }
1495 >    }
1496 >
1497   }

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