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Comparing jsr166/src/test/tck/ThreadPoolExecutorTest.java (file contents):
Revision 1.4 by dl, Sat Sep 20 00:31:57 2003 UTC vs.
Revision 1.49 by jsr166, Wed Sep 25 07:39:17 2013 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  
8 import java.util.concurrent.*;
9   import junit.framework.*;
10 < import java.util.List;
10 > import java.util.concurrent.*;
11 > import static java.util.concurrent.TimeUnit.MILLISECONDS;
12 > import static java.util.concurrent.TimeUnit.NANOSECONDS;
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 >        final CountDownLatch beforeCalled = new CountDownLatch(1);
25 >        final CountDownLatch afterCalled = new CountDownLatch(1);
26 >        final CountDownLatch terminatedCalled = new CountDownLatch(1);
27 >
28 >        public ExtendedTPE() {
29 >            super(1, 1, LONG_DELAY_MS, MILLISECONDS, new SynchronousQueue<Runnable>());
30 >        }
31 >        protected void beforeExecute(Thread t, Runnable r) {
32 >            beforeCalled.countDown();
33 >        }
34 >        protected void afterExecute(Runnable r, Throwable t) {
35 >            afterCalled.countDown();
36 >        }
37 >        protected void terminated() {
38 >            terminatedCalled.countDown();
39 >        }
40 >
41 >        public boolean beforeCalled() {
42 >            return beforeCalled.getCount() == 0;
43 >        }
44 >        public boolean afterCalled() {
45 >            return afterCalled.getCount() == 0;
46 >        }
47 >        public boolean terminatedCalled() {
48 >            return terminatedCalled.getCount() == 0;
49 >        }
50 >    }
51 >
52 >    static class FailingThreadFactory implements ThreadFactory {
53 >        int calls = 0;
54 >        public Thread newThread(Runnable r) {
55 >            if (++calls > 1) return null;
56 >            return new Thread(r);
57 >        }
58 >    }
59 >
60      /**
61 <     * For use as ThreadFactory in constructors
61 >     * execute successfully executes a runnable
62       */
63 <    static class MyThreadFactory implements ThreadFactory{
64 <        public Thread newThread(Runnable r){
65 <            return new Thread(r);
66 <        }  
63 >    public void testExecute() throws InterruptedException {
64 >        final ThreadPoolExecutor p =
65 >            new ThreadPoolExecutor(1, 1,
66 >                                   LONG_DELAY_MS, MILLISECONDS,
67 >                                   new ArrayBlockingQueue<Runnable>(10));
68 >        final CountDownLatch done = new CountDownLatch(1);
69 >        final Runnable task = new CheckedRunnable() {
70 >            public void realRun() {
71 >                done.countDown();
72 >            }};
73 >        try {
74 >            p.execute(task);
75 >            assertTrue(done.await(SMALL_DELAY_MS, MILLISECONDS));
76 >        } finally {
77 >            joinPool(p);
78 >        }
79 >    }
80 >
81 >    /**
82 >     * getActiveCount increases but doesn't overestimate, when a
83 >     * thread becomes active
84 >     */
85 >    public void testGetActiveCount() throws InterruptedException {
86 >        final ThreadPoolExecutor p =
87 >            new ThreadPoolExecutor(2, 2,
88 >                                   LONG_DELAY_MS, MILLISECONDS,
89 >                                   new ArrayBlockingQueue<Runnable>(10));
90 >        final CountDownLatch threadStarted = new CountDownLatch(1);
91 >        final CountDownLatch done = new CountDownLatch(1);
92 >        try {
93 >            assertEquals(0, p.getActiveCount());
94 >            p.execute(new CheckedRunnable() {
95 >                public void realRun() throws InterruptedException {
96 >                    threadStarted.countDown();
97 >                    assertEquals(1, p.getActiveCount());
98 >                    done.await();
99 >                }});
100 >            assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
101 >            assertEquals(1, p.getActiveCount());
102 >        } finally {
103 >            done.countDown();
104 >            joinPool(p);
105 >        }
106      }
107  
108      /**
109 <     * For use as RejectedExecutionHandler in constructors
109 >     * prestartCoreThread starts a thread if under corePoolSize, else doesn't
110       */
111 <    static class MyREHandler implements RejectedExecutionHandler{
112 <        public void rejectedExecution(Runnable r, ThreadPoolExecutor executor){}
111 >    public void testPrestartCoreThread() {
112 >        final ThreadPoolExecutor p =
113 >            new ThreadPoolExecutor(2, 2,
114 >                                   LONG_DELAY_MS, MILLISECONDS,
115 >                                   new ArrayBlockingQueue<Runnable>(10));
116 >        assertEquals(0, p.getPoolSize());
117 >        assertTrue(p.prestartCoreThread());
118 >        assertEquals(1, p.getPoolSize());
119 >        assertTrue(p.prestartCoreThread());
120 >        assertEquals(2, p.getPoolSize());
121 >        assertFalse(p.prestartCoreThread());
122 >        assertEquals(2, p.getPoolSize());
123 >        joinPool(p);
124      }
125 <
125 >
126      /**
127 <     *   execute successfully executes a runnable
127 >     * prestartAllCoreThreads starts all corePoolSize threads
128       */
129 <    public void testExecute(){
130 <        ThreadPoolExecutor one = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
129 >    public void testPrestartAllCoreThreads() {
130 >        final ThreadPoolExecutor p =
131 >            new ThreadPoolExecutor(2, 2,
132 >                                   LONG_DELAY_MS, MILLISECONDS,
133 >                                   new ArrayBlockingQueue<Runnable>(10));
134 >        assertEquals(0, p.getPoolSize());
135 >        p.prestartAllCoreThreads();
136 >        assertEquals(2, p.getPoolSize());
137 >        p.prestartAllCoreThreads();
138 >        assertEquals(2, p.getPoolSize());
139 >        joinPool(p);
140 >    }
141 >
142 >    /**
143 >     * getCompletedTaskCount increases, but doesn't overestimate,
144 >     * when tasks complete
145 >     */
146 >    public void testGetCompletedTaskCount() throws InterruptedException {
147 >        final ThreadPoolExecutor p =
148 >            new ThreadPoolExecutor(2, 2,
149 >                                   LONG_DELAY_MS, MILLISECONDS,
150 >                                   new ArrayBlockingQueue<Runnable>(10));
151 >        final CountDownLatch threadStarted = new CountDownLatch(1);
152 >        final CountDownLatch threadProceed = new CountDownLatch(1);
153 >        final CountDownLatch threadDone = new CountDownLatch(1);
154          try {
155 <            one.execute(new Runnable(){
156 <                    public void run(){
157 <                        try{
158 <                            Thread.sleep(SHORT_DELAY_MS);
159 <                        } catch(InterruptedException e){
160 <                            fail("unexpected exception");
161 <                        }
162 <                    }
163 <                });
164 <            Thread.sleep(SMALL_DELAY_MS);
165 <        } catch(InterruptedException e){
166 <            fail("unexpected exception");
167 <        }
168 <        joinPool(one);
155 >            assertEquals(0, p.getCompletedTaskCount());
156 >            p.execute(new CheckedRunnable() {
157 >                public void realRun() throws InterruptedException {
158 >                    threadStarted.countDown();
159 >                    assertEquals(0, p.getCompletedTaskCount());
160 >                    threadProceed.await();
161 >                    threadDone.countDown();
162 >                }});
163 >            await(threadStarted);
164 >            assertEquals(0, p.getCompletedTaskCount());
165 >            threadProceed.countDown();
166 >            threadDone.await();
167 >            long startTime = System.nanoTime();
168 >            while (p.getCompletedTaskCount() != 1) {
169 >                if (millisElapsedSince(startTime) > LONG_DELAY_MS)
170 >                    fail("timed out");
171 >                Thread.yield();
172 >            }
173 >        } finally {
174 >            joinPool(p);
175 >        }
176 >    }
177 >
178 >    /**
179 >     * getCorePoolSize returns size given in constructor if not otherwise set
180 >     */
181 >    public void testGetCorePoolSize() {
182 >        final ThreadPoolExecutor p =
183 >            new ThreadPoolExecutor(1, 1,
184 >                                   LONG_DELAY_MS, MILLISECONDS,
185 >                                   new ArrayBlockingQueue<Runnable>(10));
186 >        assertEquals(1, p.getCorePoolSize());
187 >        joinPool(p);
188 >    }
189 >
190 >    /**
191 >     * getKeepAliveTime returns value given in constructor if not otherwise set
192 >     */
193 >    public void testGetKeepAliveTime() {
194 >        final ThreadPoolExecutor p =
195 >            new ThreadPoolExecutor(2, 2,
196 >                                   1000, MILLISECONDS,
197 >                                   new ArrayBlockingQueue<Runnable>(10));
198 >        assertEquals(1, p.getKeepAliveTime(TimeUnit.SECONDS));
199 >        joinPool(p);
200 >    }
201 >
202 >    /**
203 >     * getThreadFactory returns factory in constructor if not set
204 >     */
205 >    public void testGetThreadFactory() {
206 >        ThreadFactory tf = new SimpleThreadFactory();
207 >        final ThreadPoolExecutor p =
208 >            new ThreadPoolExecutor(1, 2,
209 >                                   LONG_DELAY_MS, MILLISECONDS,
210 >                                   new ArrayBlockingQueue<Runnable>(10),
211 >                                   tf,
212 >                                   new NoOpREHandler());
213 >        assertSame(tf, p.getThreadFactory());
214 >        joinPool(p);
215      }
216  
217      /**
218 <     *   getActiveCount gives correct values
218 >     * setThreadFactory sets the thread factory returned by getThreadFactory
219       */
220 <    public void testGetActiveCount(){
221 <        ThreadPoolExecutor two = new ThreadPoolExecutor(2, 2, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
222 <        assertEquals(0, two.getActiveCount());
223 <        two.execute(new MediumRunnable());
224 <        try{
225 <            Thread.sleep(SHORT_DELAY_MS);
226 <        } catch(Exception e){
227 <            fail("unexpected exception");
220 >    public void testSetThreadFactory() {
221 >        final ThreadPoolExecutor p =
222 >            new ThreadPoolExecutor(1, 2,
223 >                                   LONG_DELAY_MS, MILLISECONDS,
224 >                                   new ArrayBlockingQueue<Runnable>(10));
225 >        ThreadFactory tf = new SimpleThreadFactory();
226 >        p.setThreadFactory(tf);
227 >        assertSame(tf, p.getThreadFactory());
228 >        joinPool(p);
229 >    }
230 >
231 >    /**
232 >     * setThreadFactory(null) throws NPE
233 >     */
234 >    public void testSetThreadFactoryNull() {
235 >        final ThreadPoolExecutor p =
236 >            new ThreadPoolExecutor(1, 2,
237 >                                   LONG_DELAY_MS, MILLISECONDS,
238 >                                   new ArrayBlockingQueue<Runnable>(10));
239 >        try {
240 >            p.setThreadFactory(null);
241 >            shouldThrow();
242 >        } catch (NullPointerException success) {
243 >        } finally {
244 >            joinPool(p);
245          }
70        assertEquals(1, two.getActiveCount());
71        joinPool(two);
246      }
247 <    
247 >
248 >    /**
249 >     * getRejectedExecutionHandler returns handler in constructor if not set
250 >     */
251 >    public void testGetRejectedExecutionHandler() {
252 >        final RejectedExecutionHandler h = new NoOpREHandler();
253 >        final ThreadPoolExecutor p =
254 >            new ThreadPoolExecutor(1, 2,
255 >                                   LONG_DELAY_MS, MILLISECONDS,
256 >                                   new ArrayBlockingQueue<Runnable>(10),
257 >                                   h);
258 >        assertSame(h, p.getRejectedExecutionHandler());
259 >        joinPool(p);
260 >    }
261 >
262 >    /**
263 >     * setRejectedExecutionHandler sets the handler returned by
264 >     * getRejectedExecutionHandler
265 >     */
266 >    public void testSetRejectedExecutionHandler() {
267 >        final ThreadPoolExecutor p =
268 >            new ThreadPoolExecutor(1, 2,
269 >                                   LONG_DELAY_MS, MILLISECONDS,
270 >                                   new ArrayBlockingQueue<Runnable>(10));
271 >        RejectedExecutionHandler h = new NoOpREHandler();
272 >        p.setRejectedExecutionHandler(h);
273 >        assertSame(h, p.getRejectedExecutionHandler());
274 >        joinPool(p);
275 >    }
276 >
277      /**
278 <     *   getCompleteTaskCount gives correct values
278 >     * setRejectedExecutionHandler(null) throws NPE
279       */
280 <    public void testGetCompletedTaskCount(){
281 <        ThreadPoolExecutor two = new ThreadPoolExecutor(2, 2, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
282 <        assertEquals(0, two.getCompletedTaskCount());
283 <        two.execute(new ShortRunnable());
284 <        try{
285 <            Thread.sleep(MEDIUM_DELAY_MS);
286 <        } catch(Exception e){
287 <            fail("unexpected exception");
280 >    public void testSetRejectedExecutionHandlerNull() {
281 >        final ThreadPoolExecutor p =
282 >            new ThreadPoolExecutor(1, 2,
283 >                                   LONG_DELAY_MS, MILLISECONDS,
284 >                                   new ArrayBlockingQueue<Runnable>(10));
285 >        try {
286 >            p.setRejectedExecutionHandler(null);
287 >            shouldThrow();
288 >        } catch (NullPointerException success) {
289 >        } finally {
290 >            joinPool(p);
291 >        }
292 >    }
293 >
294 >    /**
295 >     * getLargestPoolSize increases, but doesn't overestimate, when
296 >     * multiple threads active
297 >     */
298 >    public void testGetLargestPoolSize() throws InterruptedException {
299 >        final int THREADS = 3;
300 >        final ThreadPoolExecutor p =
301 >            new ThreadPoolExecutor(THREADS, THREADS,
302 >                                   LONG_DELAY_MS, MILLISECONDS,
303 >                                   new ArrayBlockingQueue<Runnable>(10));
304 >        final CountDownLatch threadsStarted = new CountDownLatch(THREADS);
305 >        final CountDownLatch done = new CountDownLatch(1);
306 >        try {
307 >            assertEquals(0, p.getLargestPoolSize());
308 >            for (int i = 0; i < THREADS; i++)
309 >                p.execute(new CheckedRunnable() {
310 >                    public void realRun() throws InterruptedException {
311 >                        threadsStarted.countDown();
312 >                        done.await();
313 >                        assertEquals(THREADS, p.getLargestPoolSize());
314 >                    }});
315 >            assertTrue(threadsStarted.await(SMALL_DELAY_MS, MILLISECONDS));
316 >            assertEquals(THREADS, p.getLargestPoolSize());
317 >        } finally {
318 >            done.countDown();
319 >            joinPool(p);
320 >            assertEquals(THREADS, p.getLargestPoolSize());
321          }
86        assertEquals(1, two.getCompletedTaskCount());
87        two.shutdown();
88        joinPool(two);
322      }
323 <    
323 >
324      /**
325 <     *   getCorePoolSize gives correct values
325 >     * getMaximumPoolSize returns value given in constructor if not
326 >     * otherwise set
327       */
328 <    public void testGetCorePoolSize(){
329 <        ThreadPoolExecutor one = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
330 <        assertEquals(1, one.getCorePoolSize());
331 <        joinPool(one);
328 >    public void testGetMaximumPoolSize() {
329 >        final ThreadPoolExecutor p =
330 >            new ThreadPoolExecutor(2, 3,
331 >                                   LONG_DELAY_MS, MILLISECONDS,
332 >                                   new ArrayBlockingQueue<Runnable>(10));
333 >        assertEquals(3, p.getMaximumPoolSize());
334 >        joinPool(p);
335      }
336 <    
336 >
337      /**
338 <     *   getKeepAliveTime gives correct values
338 >     * getPoolSize increases, but doesn't overestimate, when threads
339 >     * become active
340       */
341 <    public void testGetKeepAliveTime(){
342 <        ThreadPoolExecutor two = new ThreadPoolExecutor(2, 2, 1000, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
343 <        assertEquals(1, two.getKeepAliveTime(TimeUnit.SECONDS));
344 <        joinPool(two);
341 >    public void testGetPoolSize() throws InterruptedException {
342 >        final ThreadPoolExecutor p =
343 >            new ThreadPoolExecutor(1, 1,
344 >                                   LONG_DELAY_MS, MILLISECONDS,
345 >                                   new ArrayBlockingQueue<Runnable>(10));
346 >        final CountDownLatch threadStarted = new CountDownLatch(1);
347 >        final CountDownLatch done = new CountDownLatch(1);
348 >        try {
349 >            assertEquals(0, p.getPoolSize());
350 >            p.execute(new CheckedRunnable() {
351 >                public void realRun() throws InterruptedException {
352 >                    threadStarted.countDown();
353 >                    assertEquals(1, p.getPoolSize());
354 >                    done.await();
355 >                }});
356 >            assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
357 >            assertEquals(1, p.getPoolSize());
358 >        } finally {
359 >            done.countDown();
360 >            joinPool(p);
361 >        }
362      }
363 <    
363 >
364      /**
365 <     *   getLargestPoolSize gives correct values
365 >     * getTaskCount increases, but doesn't overestimate, when tasks submitted
366       */
367 <    public void testGetLargestPoolSize(){
368 <        ThreadPoolExecutor two = new ThreadPoolExecutor(2, 2, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
367 >    public void testGetTaskCount() throws InterruptedException {
368 >        final ThreadPoolExecutor p =
369 >            new ThreadPoolExecutor(1, 1,
370 >                                   LONG_DELAY_MS, MILLISECONDS,
371 >                                   new ArrayBlockingQueue<Runnable>(10));
372 >        final CountDownLatch threadStarted = new CountDownLatch(1);
373 >        final CountDownLatch done = new CountDownLatch(1);
374          try {
375 <            assertEquals(0, two.getLargestPoolSize());
376 <            two.execute(new MediumRunnable());
377 <            two.execute(new MediumRunnable());
378 <            Thread.sleep(SHORT_DELAY_MS);
379 <            assertEquals(2, two.getLargestPoolSize());
380 <        } catch(Exception e){
381 <            fail("unexpected exception");
382 <        }
383 <        joinPool(two);
375 >            assertEquals(0, p.getTaskCount());
376 >            p.execute(new CheckedRunnable() {
377 >                public void realRun() throws InterruptedException {
378 >                    threadStarted.countDown();
379 >                    assertEquals(1, p.getTaskCount());
380 >                    done.await();
381 >                }});
382 >            assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
383 >            assertEquals(1, p.getTaskCount());
384 >        } finally {
385 >            done.countDown();
386 >            joinPool(p);
387 >        }
388      }
389 <    
389 >
390 >    /**
391 >     * isShutdown is false before shutdown, true after
392 >     */
393 >    public void testIsShutdown() {
394 >        final ThreadPoolExecutor p =
395 >            new ThreadPoolExecutor(1, 1,
396 >                                   LONG_DELAY_MS, MILLISECONDS,
397 >                                   new ArrayBlockingQueue<Runnable>(10));
398 >        assertFalse(p.isShutdown());
399 >        try { p.shutdown(); } catch (SecurityException ok) { return; }
400 >        assertTrue(p.isShutdown());
401 >        joinPool(p);
402 >    }
403 >
404      /**
405 <     *   getMaximumPoolSize gives correct values
405 >     * awaitTermination on a non-shutdown pool times out
406       */
407 <    public void testGetMaximumPoolSize(){
408 <        ThreadPoolExecutor two = new ThreadPoolExecutor(2, 2, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
409 <        assertEquals(2, two.getMaximumPoolSize());
410 <        joinPool(two);
407 >    public void testAwaitTermination_timesOut() throws InterruptedException {
408 >        final ThreadPoolExecutor p =
409 >            new ThreadPoolExecutor(1, 1,
410 >                                   LONG_DELAY_MS, MILLISECONDS,
411 >                                   new ArrayBlockingQueue<Runnable>(10));
412 >        assertFalse(p.isTerminated());
413 >        assertFalse(p.awaitTermination(Long.MIN_VALUE, NANOSECONDS));
414 >        assertFalse(p.awaitTermination(Long.MIN_VALUE, MILLISECONDS));
415 >        assertFalse(p.awaitTermination(-1L, NANOSECONDS));
416 >        assertFalse(p.awaitTermination(-1L, MILLISECONDS));
417 >        assertFalse(p.awaitTermination(0L, NANOSECONDS));
418 >        assertFalse(p.awaitTermination(0L, MILLISECONDS));
419 >        long timeoutNanos = 999999L;
420 >        long startTime = System.nanoTime();
421 >        assertFalse(p.awaitTermination(timeoutNanos, NANOSECONDS));
422 >        assertTrue(System.nanoTime() - startTime >= timeoutNanos);
423 >        assertFalse(p.isTerminated());
424 >        startTime = System.nanoTime();
425 >        long timeoutMillis = timeoutMillis();
426 >        assertFalse(p.awaitTermination(timeoutMillis, MILLISECONDS));
427 >        assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
428 >        assertFalse(p.isTerminated());
429 >        p.shutdown();
430 >        assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
431 >        assertTrue(p.isTerminated());
432      }
433 <    
433 >
434      /**
435 <     *   getPoolSize gives correct values
435 >     * isTerminated is false before termination, true after
436       */
437 <    public void testGetPoolSize(){
438 <        ThreadPoolExecutor one = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
439 <        assertEquals(0, one.getPoolSize());
440 <        one.execute(new MediumRunnable());
441 <        assertEquals(1, one.getPoolSize());
442 <        joinPool(one);
437 >    public void testIsTerminated() throws InterruptedException {
438 >        final ThreadPoolExecutor p =
439 >            new ThreadPoolExecutor(1, 1,
440 >                                   LONG_DELAY_MS, MILLISECONDS,
441 >                                   new ArrayBlockingQueue<Runnable>(10));
442 >        final CountDownLatch threadStarted = new CountDownLatch(1);
443 >        final CountDownLatch done = new CountDownLatch(1);
444 >        assertFalse(p.isTerminated());
445 >        try {
446 >            p.execute(new CheckedRunnable() {
447 >                public void realRun() throws InterruptedException {
448 >                    assertFalse(p.isTerminated());
449 >                    threadStarted.countDown();
450 >                    done.await();
451 >                }});
452 >            assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
453 >            assertFalse(p.isTerminating());
454 >            done.countDown();
455 >        } finally {
456 >            try { p.shutdown(); } catch (SecurityException ok) { return; }
457 >        }
458 >        assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
459 >        assertTrue(p.isTerminated());
460      }
461 <    
461 >
462      /**
463 <     *   getTaskCount gives correct values
463 >     * isTerminating is not true when running or when terminated
464       */
465 <    public void testGetTaskCount(){
466 <        ThreadPoolExecutor one = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
465 >    public void testIsTerminating() throws InterruptedException {
466 >        final ThreadPoolExecutor p =
467 >            new ThreadPoolExecutor(1, 1,
468 >                                   LONG_DELAY_MS, MILLISECONDS,
469 >                                   new ArrayBlockingQueue<Runnable>(10));
470 >        final CountDownLatch threadStarted = new CountDownLatch(1);
471 >        final CountDownLatch done = new CountDownLatch(1);
472          try {
473 <            assertEquals(0, one.getTaskCount());
474 <            one.execute(new MediumRunnable());
475 <            Thread.sleep(SHORT_DELAY_MS);
476 <            assertEquals(1, one.getTaskCount());
477 <        } catch(Exception e){
478 <            fail("unexpected exception");
479 <        }
480 <        joinPool(one);
473 >            assertFalse(p.isTerminating());
474 >            p.execute(new CheckedRunnable() {
475 >                public void realRun() throws InterruptedException {
476 >                    assertFalse(p.isTerminating());
477 >                    threadStarted.countDown();
478 >                    done.await();
479 >                }});
480 >            assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
481 >            assertFalse(p.isTerminating());
482 >            done.countDown();
483 >        } finally {
484 >            try { p.shutdown(); } catch (SecurityException ok) { return; }
485 >        }
486 >        assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
487 >        assertTrue(p.isTerminated());
488 >        assertFalse(p.isTerminating());
489      }
490 <    
490 >
491      /**
492 <     *   isShutDown gives correct values
492 >     * getQueue returns the work queue, which contains queued tasks
493       */
494 <    public void testIsShutdown(){
495 <        
496 <        ThreadPoolExecutor one = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
497 <        assertFalse(one.isShutdown());
498 <        one.shutdown();
499 <        assertTrue(one.isShutdown());
500 <        joinPool(one);
494 >    public void testGetQueue() throws InterruptedException {
495 >        final BlockingQueue<Runnable> q = new ArrayBlockingQueue<Runnable>(10);
496 >        final ThreadPoolExecutor p =
497 >            new ThreadPoolExecutor(1, 1,
498 >                                   LONG_DELAY_MS, MILLISECONDS,
499 >                                   q);
500 >        final CountDownLatch threadStarted = new CountDownLatch(1);
501 >        final CountDownLatch done = new CountDownLatch(1);
502 >        try {
503 >            FutureTask[] tasks = new FutureTask[5];
504 >            for (int i = 0; i < tasks.length; i++) {
505 >                Callable task = new CheckedCallable<Boolean>() {
506 >                    public Boolean realCall() throws InterruptedException {
507 >                        threadStarted.countDown();
508 >                        assertSame(q, p.getQueue());
509 >                        done.await();
510 >                        return Boolean.TRUE;
511 >                    }};
512 >                tasks[i] = new FutureTask(task);
513 >                p.execute(tasks[i]);
514 >            }
515 >            assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
516 >            assertSame(q, p.getQueue());
517 >            assertFalse(q.contains(tasks[0]));
518 >            assertTrue(q.contains(tasks[tasks.length - 1]));
519 >            assertEquals(tasks.length - 1, q.size());
520 >        } finally {
521 >            done.countDown();
522 >            joinPool(p);
523 >        }
524      }
525  
174        
526      /**
527 <     *   isTerminated gives correct values
177 <     *  Makes sure termination does not take an innapropriate
178 <     *  amount of time
527 >     * remove(task) removes queued task, and fails to remove active task
528       */
529 <    public void testIsTerminated(){
530 <        ThreadPoolExecutor one = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
529 >    public void testRemove() throws InterruptedException {
530 >        BlockingQueue<Runnable> q = new ArrayBlockingQueue<Runnable>(10);
531 >        final ThreadPoolExecutor p =
532 >            new ThreadPoolExecutor(1, 1,
533 >                                   LONG_DELAY_MS, MILLISECONDS,
534 >                                   q);
535 >        Runnable[] tasks = new Runnable[5];
536 >        final CountDownLatch threadStarted = new CountDownLatch(1);
537 >        final CountDownLatch done = new CountDownLatch(1);
538          try {
539 <            one.execute(new MediumRunnable());
539 >            for (int i = 0; i < tasks.length; i++) {
540 >                tasks[i] = new CheckedRunnable() {
541 >                    public void realRun() throws InterruptedException {
542 >                        threadStarted.countDown();
543 >                        done.await();
544 >                    }};
545 >                p.execute(tasks[i]);
546 >            }
547 >            assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
548 >            assertFalse(p.remove(tasks[0]));
549 >            assertTrue(q.contains(tasks[4]));
550 >            assertTrue(q.contains(tasks[3]));
551 >            assertTrue(p.remove(tasks[4]));
552 >            assertFalse(p.remove(tasks[4]));
553 >            assertFalse(q.contains(tasks[4]));
554 >            assertTrue(q.contains(tasks[3]));
555 >            assertTrue(p.remove(tasks[3]));
556 >            assertFalse(q.contains(tasks[3]));
557          } finally {
558 <            one.shutdown();
558 >            done.countDown();
559 >            joinPool(p);
560          }
187        try {
188            assertTrue(one.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
189            assertTrue(one.isTerminated());
190        } catch(Exception e){
191            fail("unexpected exception");
192        }      
561      }
562  
563      /**
564 <     *   purge correctly removes cancelled tasks
197 <     *  from the queue
564 >     * purge removes cancelled tasks from the queue
565       */
566 <    public void testPurge(){
567 <        ThreadPoolExecutor one = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
568 <        CancellableTask[] tasks = new CancellableTask[5];
569 <        for(int i = 0; i < 5; i++){
570 <            tasks[i] = new CancellableTask(new MediumPossiblyInterruptedRunnable());
571 <            one.execute(tasks[i]);
566 >    public void testPurge() throws InterruptedException {
567 >        final CountDownLatch threadStarted = new CountDownLatch(1);
568 >        final CountDownLatch done = new CountDownLatch(1);
569 >        final BlockingQueue<Runnable> q = new ArrayBlockingQueue<Runnable>(10);
570 >        final ThreadPoolExecutor p =
571 >            new ThreadPoolExecutor(1, 1,
572 >                                   LONG_DELAY_MS, MILLISECONDS,
573 >                                   q);
574 >        FutureTask[] tasks = new FutureTask[5];
575 >        try {
576 >            for (int i = 0; i < tasks.length; i++) {
577 >                Callable task = new CheckedCallable<Boolean>() {
578 >                    public Boolean realCall() throws InterruptedException {
579 >                        threadStarted.countDown();
580 >                        done.await();
581 >                        return Boolean.TRUE;
582 >                    }};
583 >                tasks[i] = new FutureTask(task);
584 >                p.execute(tasks[i]);
585 >            }
586 >            assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
587 >            assertEquals(tasks.length, p.getTaskCount());
588 >            assertEquals(tasks.length - 1, q.size());
589 >            assertEquals(1L, p.getActiveCount());
590 >            assertEquals(0L, p.getCompletedTaskCount());
591 >            tasks[4].cancel(true);
592 >            tasks[3].cancel(false);
593 >            p.purge();
594 >            assertEquals(tasks.length - 3, q.size());
595 >            assertEquals(tasks.length - 2, p.getTaskCount());
596 >            p.purge();         // Nothing to do
597 >            assertEquals(tasks.length - 3, q.size());
598 >            assertEquals(tasks.length - 2, p.getTaskCount());
599 >        } finally {
600 >            done.countDown();
601 >            joinPool(p);
602          }
206        tasks[4].cancel(true);
207        tasks[3].cancel(true);
208        one.purge();
209        long count = one.getTaskCount();
210        assertTrue(count >= 2 && count < 5);
211        joinPool(one);
603      }
604  
605      /**
606 <     *   shutDownNow returns a list
216 <     *  containing the correct number of elements
606 >     * shutdownNow returns a list containing tasks that were not run
607       */
608 <    public void testShutDownNow(){
609 <        ThreadPoolExecutor one = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
608 >    public void testShutdownNow() {
609 >        final ThreadPoolExecutor p =
610 >            new ThreadPoolExecutor(1, 1,
611 >                                   LONG_DELAY_MS, MILLISECONDS,
612 >                                   new ArrayBlockingQueue<Runnable>(10));
613          List l;
614          try {
615 <            for(int i = 0; i < 5; i++)
616 <                one.execute(new MediumPossiblyInterruptedRunnable());
615 >            for (int i = 0; i < 5; i++)
616 >                p.execute(new MediumPossiblyInterruptedRunnable());
617          }
618          finally {
619 <            l = one.shutdownNow();
619 >            try {
620 >                l = p.shutdownNow();
621 >            } catch (SecurityException ok) { return; }
622          }
623 <        assertTrue(one.isShutdown());
624 <        assertTrue(l.size() <= 4);
623 >        assertTrue(p.isShutdown());
624 >        assertTrue(l.size() <= 4);
625      }
626  
627      // Exception Tests
233    
628  
629 <    /** Throws if corePoolSize argument is less than zero */
629 >    /**
630 >     * Constructor throws if corePoolSize argument is less than zero
631 >     */
632      public void testConstructor1() {
633 <        try{
634 <            new ThreadPoolExecutor(-1,1,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
635 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
636 <        }
637 <        catch (IllegalArgumentException success){}
633 >        try {
634 >            new ThreadPoolExecutor(-1, 1,
635 >                                   LONG_DELAY_MS, MILLISECONDS,
636 >                                   new ArrayBlockingQueue<Runnable>(10));
637 >            shouldThrow();
638 >        } catch (IllegalArgumentException success) {}
639      }
640 <    
641 <    /** Throws if maximumPoolSize is less than zero */
640 >
641 >    /**
642 >     * Constructor throws if maximumPoolSize is less than zero
643 >     */
644      public void testConstructor2() {
645 <        try{
646 <            new ThreadPoolExecutor(1,-1,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
647 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
648 <        }
649 <        catch (IllegalArgumentException success){}
645 >        try {
646 >            new ThreadPoolExecutor(1, -1,
647 >                                   LONG_DELAY_MS, MILLISECONDS,
648 >                                   new ArrayBlockingQueue<Runnable>(10));
649 >            shouldThrow();
650 >        } catch (IllegalArgumentException success) {}
651      }
652 <    
653 <    /** Throws if maximumPoolSize is equal to zero */
652 >
653 >    /**
654 >     * Constructor throws if maximumPoolSize is equal to zero
655 >     */
656      public void testConstructor3() {
657 <        try{
658 <            new ThreadPoolExecutor(1,0,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
659 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
660 <        }
661 <        catch (IllegalArgumentException success){}
657 >        try {
658 >            new ThreadPoolExecutor(1, 0,
659 >                                   LONG_DELAY_MS, MILLISECONDS,
660 >                                   new ArrayBlockingQueue<Runnable>(10));
661 >            shouldThrow();
662 >        } catch (IllegalArgumentException success) {}
663      }
664  
665 <    /** Throws if keepAliveTime is less than zero */
665 >    /**
666 >     * Constructor throws if keepAliveTime is less than zero
667 >     */
668      public void testConstructor4() {
669 <        try{
670 <            new ThreadPoolExecutor(1,2,-1L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
671 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
672 <        }
673 <        catch (IllegalArgumentException success){}
669 >        try {
670 >            new ThreadPoolExecutor(1, 2,
671 >                                   -1L, MILLISECONDS,
672 >                                   new ArrayBlockingQueue<Runnable>(10));
673 >            shouldThrow();
674 >        } catch (IllegalArgumentException success) {}
675      }
676  
677 <    /** Throws if corePoolSize is greater than the maximumPoolSize */
677 >    /**
678 >     * Constructor throws if corePoolSize is greater than the maximumPoolSize
679 >     */
680      public void testConstructor5() {
681 <        try{
682 <            new ThreadPoolExecutor(2,1,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
683 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
684 <        }
685 <        catch (IllegalArgumentException success){}
681 >        try {
682 >            new ThreadPoolExecutor(2, 1,
683 >                                   LONG_DELAY_MS, MILLISECONDS,
684 >                                   new ArrayBlockingQueue<Runnable>(10));
685 >            shouldThrow();
686 >        } catch (IllegalArgumentException success) {}
687      }
688 <        
689 <    /** Throws if workQueue is set to null */
690 <    public void testNullPointerException() {
691 <        try{
692 <            new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,null);
693 <            fail("ThreadPoolExecutor constructor should throw a NullPointerException");        
694 <        }
695 <        catch (NullPointerException success){}  
688 >
689 >    /**
690 >     * Constructor throws if workQueue is set to null
691 >     */
692 >    public void testConstructorNullPointerException() {
693 >        try {
694 >            new ThreadPoolExecutor(1, 2,
695 >                                   LONG_DELAY_MS, MILLISECONDS,
696 >                                   (BlockingQueue) null);
697 >            shouldThrow();
698 >        } catch (NullPointerException success) {}
699      }
288    
700  
701 <    
702 <    /** Throws if corePoolSize argument is less than zero */
701 >    /**
702 >     * Constructor throws if corePoolSize argument is less than zero
703 >     */
704      public void testConstructor6() {
705 <        try{
706 <            new ThreadPoolExecutor(-1,1,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory());
707 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
708 <        } catch (IllegalArgumentException success){}
705 >        try {
706 >            new ThreadPoolExecutor(-1, 1,
707 >                                   LONG_DELAY_MS, MILLISECONDS,
708 >                                   new ArrayBlockingQueue<Runnable>(10),
709 >                                   new SimpleThreadFactory());
710 >            shouldThrow();
711 >        } catch (IllegalArgumentException success) {}
712      }
713 <    
714 <    /** Throws if maximumPoolSize is less than zero */
713 >
714 >    /**
715 >     * Constructor throws if maximumPoolSize is less than zero
716 >     */
717      public void testConstructor7() {
718 <        try{
719 <            new ThreadPoolExecutor(1,-1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory());
720 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
721 <        }
722 <        catch (IllegalArgumentException success){}
718 >        try {
719 >            new ThreadPoolExecutor(1, -1,
720 >                                   LONG_DELAY_MS, MILLISECONDS,
721 >                                   new ArrayBlockingQueue<Runnable>(10),
722 >                                   new SimpleThreadFactory());
723 >            shouldThrow();
724 >        } catch (IllegalArgumentException success) {}
725      }
726  
727 <    /** Throws if maximumPoolSize is equal to zero */
727 >    /**
728 >     * Constructor throws if maximumPoolSize is equal to zero
729 >     */
730      public void testConstructor8() {
731 <        try{
732 <            new ThreadPoolExecutor(1,0,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory());
733 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
734 <        }
735 <        catch (IllegalArgumentException success){}
731 >        try {
732 >            new ThreadPoolExecutor(1, 0,
733 >                                   LONG_DELAY_MS, MILLISECONDS,
734 >                                   new ArrayBlockingQueue<Runnable>(10),
735 >                                   new SimpleThreadFactory());
736 >            shouldThrow();
737 >        } catch (IllegalArgumentException success) {}
738      }
739  
740 <    /** Throws if keepAliveTime is less than zero */
740 >    /**
741 >     * Constructor throws if keepAliveTime is less than zero
742 >     */
743      public void testConstructor9() {
744 <        try{
745 <            new ThreadPoolExecutor(1,2,-1L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory());
746 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
747 <        }
748 <        catch (IllegalArgumentException success){}
744 >        try {
745 >            new ThreadPoolExecutor(1, 2,
746 >                                   -1L, MILLISECONDS,
747 >                                   new ArrayBlockingQueue<Runnable>(10),
748 >                                   new SimpleThreadFactory());
749 >            shouldThrow();
750 >        } catch (IllegalArgumentException success) {}
751      }
752  
753 <    /** Throws if corePoolSize is greater than the maximumPoolSize */
753 >    /**
754 >     * Constructor throws if corePoolSize is greater than the maximumPoolSize
755 >     */
756      public void testConstructor10() {
757 <        try{
758 <            new ThreadPoolExecutor(2,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory());
759 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
757 >        try {
758 >            new ThreadPoolExecutor(2, 1,
759 >                                   LONG_DELAY_MS, MILLISECONDS,
760 >                                   new ArrayBlockingQueue<Runnable>(10),
761 >                                   new SimpleThreadFactory());
762 >            shouldThrow();
763 >        } catch (IllegalArgumentException success) {}
764 >    }
765 >
766 >    /**
767 >     * Constructor throws if workQueue is set to null
768 >     */
769 >    public void testConstructorNullPointerException2() {
770 >        try {
771 >            new ThreadPoolExecutor(1, 2,
772 >                                   LONG_DELAY_MS, MILLISECONDS,
773 >                                   (BlockingQueue) null,
774 >                                   new SimpleThreadFactory());
775 >            shouldThrow();
776 >        } catch (NullPointerException success) {}
777 >    }
778 >
779 >    /**
780 >     * Constructor throws if threadFactory is set to null
781 >     */
782 >    public void testConstructorNullPointerException3() {
783 >        try {
784 >            new ThreadPoolExecutor(1, 2,
785 >                                   LONG_DELAY_MS, MILLISECONDS,
786 >                                   new ArrayBlockingQueue<Runnable>(10),
787 >                                   (ThreadFactory) null);
788 >            shouldThrow();
789 >        } catch (NullPointerException success) {}
790 >    }
791 >
792 >    /**
793 >     * Constructor throws if corePoolSize argument is less than zero
794 >     */
795 >    public void testConstructor11() {
796 >        try {
797 >            new ThreadPoolExecutor(-1, 1,
798 >                                   LONG_DELAY_MS, MILLISECONDS,
799 >                                   new ArrayBlockingQueue<Runnable>(10),
800 >                                   new NoOpREHandler());
801 >            shouldThrow();
802 >        } catch (IllegalArgumentException success) {}
803 >    }
804 >
805 >    /**
806 >     * Constructor throws if maximumPoolSize is less than zero
807 >     */
808 >    public void testConstructor12() {
809 >        try {
810 >            new ThreadPoolExecutor(1, -1,
811 >                                   LONG_DELAY_MS, MILLISECONDS,
812 >                                   new ArrayBlockingQueue<Runnable>(10),
813 >                                   new NoOpREHandler());
814 >            shouldThrow();
815 >        } catch (IllegalArgumentException success) {}
816 >    }
817 >
818 >    /**
819 >     * Constructor throws if maximumPoolSize is equal to zero
820 >     */
821 >    public void testConstructor13() {
822 >        try {
823 >            new ThreadPoolExecutor(1, 0,
824 >                                   LONG_DELAY_MS, MILLISECONDS,
825 >                                   new ArrayBlockingQueue<Runnable>(10),
826 >                                   new NoOpREHandler());
827 >            shouldThrow();
828 >        } catch (IllegalArgumentException success) {}
829 >    }
830 >
831 >    /**
832 >     * Constructor throws if keepAliveTime is less than zero
833 >     */
834 >    public void testConstructor14() {
835 >        try {
836 >            new ThreadPoolExecutor(1, 2,
837 >                                   -1L, MILLISECONDS,
838 >                                   new ArrayBlockingQueue<Runnable>(10),
839 >                                   new NoOpREHandler());
840 >            shouldThrow();
841 >        } catch (IllegalArgumentException success) {}
842 >    }
843 >
844 >    /**
845 >     * Constructor throws if corePoolSize is greater than the maximumPoolSize
846 >     */
847 >    public void testConstructor15() {
848 >        try {
849 >            new ThreadPoolExecutor(2, 1,
850 >                                   LONG_DELAY_MS, MILLISECONDS,
851 >                                   new ArrayBlockingQueue<Runnable>(10),
852 >                                   new NoOpREHandler());
853 >            shouldThrow();
854 >        } catch (IllegalArgumentException success) {}
855 >    }
856 >
857 >    /**
858 >     * Constructor throws if workQueue is set to null
859 >     */
860 >    public void testConstructorNullPointerException4() {
861 >        try {
862 >            new ThreadPoolExecutor(1, 2,
863 >                                   LONG_DELAY_MS, MILLISECONDS,
864 >                                   (BlockingQueue) null,
865 >                                   new NoOpREHandler());
866 >            shouldThrow();
867 >        } catch (NullPointerException success) {}
868 >    }
869 >
870 >    /**
871 >     * Constructor throws if handler is set to null
872 >     */
873 >    public void testConstructorNullPointerException5() {
874 >        try {
875 >            new ThreadPoolExecutor(1, 2,
876 >                                   LONG_DELAY_MS, MILLISECONDS,
877 >                                   new ArrayBlockingQueue<Runnable>(10),
878 >                                   (RejectedExecutionHandler) null);
879 >            shouldThrow();
880 >        } catch (NullPointerException success) {}
881 >    }
882 >
883 >    /**
884 >     * Constructor throws if corePoolSize argument is less than zero
885 >     */
886 >    public void testConstructor16() {
887 >        try {
888 >            new ThreadPoolExecutor(-1, 1,
889 >                                   LONG_DELAY_MS, MILLISECONDS,
890 >                                   new ArrayBlockingQueue<Runnable>(10),
891 >                                   new SimpleThreadFactory(),
892 >                                   new NoOpREHandler());
893 >            shouldThrow();
894 >        } catch (IllegalArgumentException success) {}
895 >    }
896 >
897 >    /**
898 >     * Constructor throws if maximumPoolSize is less than zero
899 >     */
900 >    public void testConstructor17() {
901 >        try {
902 >            new ThreadPoolExecutor(1, -1,
903 >                                   LONG_DELAY_MS, MILLISECONDS,
904 >                                   new ArrayBlockingQueue<Runnable>(10),
905 >                                   new SimpleThreadFactory(),
906 >                                   new NoOpREHandler());
907 >            shouldThrow();
908 >        } catch (IllegalArgumentException success) {}
909 >    }
910 >
911 >    /**
912 >     * Constructor throws if maximumPoolSize is equal to zero
913 >     */
914 >    public void testConstructor18() {
915 >        try {
916 >            new ThreadPoolExecutor(1, 0,
917 >                                   LONG_DELAY_MS, MILLISECONDS,
918 >                                   new ArrayBlockingQueue<Runnable>(10),
919 >                                   new SimpleThreadFactory(),
920 >                                   new NoOpREHandler());
921 >            shouldThrow();
922 >        } catch (IllegalArgumentException success) {}
923 >    }
924 >
925 >    /**
926 >     * Constructor throws if keepAliveTime is less than zero
927 >     */
928 >    public void testConstructor19() {
929 >        try {
930 >            new ThreadPoolExecutor(1, 2,
931 >                                   -1L, MILLISECONDS,
932 >                                   new ArrayBlockingQueue<Runnable>(10),
933 >                                   new SimpleThreadFactory(),
934 >                                   new NoOpREHandler());
935 >            shouldThrow();
936 >        } catch (IllegalArgumentException success) {}
937 >    }
938 >
939 >    /**
940 >     * Constructor throws if corePoolSize is greater than the maximumPoolSize
941 >     */
942 >    public void testConstructor20() {
943 >        try {
944 >            new ThreadPoolExecutor(2, 1,
945 >                                   LONG_DELAY_MS, MILLISECONDS,
946 >                                   new ArrayBlockingQueue<Runnable>(10),
947 >                                   new SimpleThreadFactory(),
948 >                                   new NoOpREHandler());
949 >            shouldThrow();
950 >        } catch (IllegalArgumentException success) {}
951 >    }
952 >
953 >    /**
954 >     * Constructor throws if workQueue is null
955 >     */
956 >    public void testConstructorNullPointerException6() {
957 >        try {
958 >            new ThreadPoolExecutor(1, 2,
959 >                                   LONG_DELAY_MS, MILLISECONDS,
960 >                                   (BlockingQueue) null,
961 >                                   new SimpleThreadFactory(),
962 >                                   new NoOpREHandler());
963 >            shouldThrow();
964 >        } catch (NullPointerException success) {}
965 >    }
966 >
967 >    /**
968 >     * Constructor throws if handler is null
969 >     */
970 >    public void testConstructorNullPointerException7() {
971 >        try {
972 >            new ThreadPoolExecutor(1, 2,
973 >                                   LONG_DELAY_MS, MILLISECONDS,
974 >                                   new ArrayBlockingQueue<Runnable>(10),
975 >                                   new SimpleThreadFactory(),
976 >                                   (RejectedExecutionHandler) null);
977 >            shouldThrow();
978 >        } catch (NullPointerException success) {}
979 >    }
980 >
981 >    /**
982 >     * Constructor throws if ThreadFactory is null
983 >     */
984 >    public void testConstructorNullPointerException8() {
985 >        try {
986 >            new ThreadPoolExecutor(1, 2,
987 >                                   LONG_DELAY_MS, MILLISECONDS,
988 >                                   new ArrayBlockingQueue<Runnable>(10),
989 >                                   (ThreadFactory) null,
990 >                                   new NoOpREHandler());
991 >            shouldThrow();
992 >        } catch (NullPointerException success) {}
993 >    }
994 >
995 >    /**
996 >     * get of submitted callable throws InterruptedException if interrupted
997 >     */
998 >    public void testInterruptedSubmit() throws InterruptedException {
999 >        final ThreadPoolExecutor p =
1000 >            new ThreadPoolExecutor(1, 1,
1001 >                                   60, TimeUnit.SECONDS,
1002 >                                   new ArrayBlockingQueue<Runnable>(10));
1003 >
1004 >        final CountDownLatch threadStarted = new CountDownLatch(1);
1005 >        final CountDownLatch done = new CountDownLatch(1);
1006 >        try {
1007 >            Thread t = newStartedThread(new CheckedInterruptedRunnable() {
1008 >                public void realRun() throws Exception {
1009 >                    Callable task = new CheckedCallable<Boolean>() {
1010 >                        public Boolean realCall() throws InterruptedException {
1011 >                            threadStarted.countDown();
1012 >                            done.await();
1013 >                            return Boolean.TRUE;
1014 >                        }};
1015 >                    p.submit(task).get();
1016 >                }});
1017 >
1018 >            assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
1019 >            t.interrupt();
1020 >            awaitTermination(t, MEDIUM_DELAY_MS);
1021 >        } finally {
1022 >            done.countDown();
1023 >            joinPool(p);
1024          }
332        catch (IllegalArgumentException success){}
1025      }
1026  
1027 <    /** Throws if workQueue is set to null */
1028 <    public void testNullPointerException2() {
1029 <        try{
1030 <            new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,null,new MyThreadFactory());
1031 <            fail("ThreadPoolExecutor constructor should throw a NullPointerException");        
1027 >    /**
1028 >     * execute throws RejectedExecutionException if saturated.
1029 >     */
1030 >    public void testSaturatedExecute() {
1031 >        ThreadPoolExecutor p =
1032 >            new ThreadPoolExecutor(1, 1,
1033 >                                   LONG_DELAY_MS, MILLISECONDS,
1034 >                                   new ArrayBlockingQueue<Runnable>(1));
1035 >        final CountDownLatch done = new CountDownLatch(1);
1036 >        try {
1037 >            Runnable task = new CheckedRunnable() {
1038 >                public void realRun() throws InterruptedException {
1039 >                    done.await();
1040 >                }};
1041 >            for (int i = 0; i < 2; ++i)
1042 >                p.execute(task);
1043 >            for (int i = 0; i < 2; ++i) {
1044 >                try {
1045 >                    p.execute(task);
1046 >                    shouldThrow();
1047 >                } catch (RejectedExecutionException success) {}
1048 >                assertTrue(p.getTaskCount() <= 2);
1049 >            }
1050 >        } finally {
1051 >            done.countDown();
1052 >            joinPool(p);
1053          }
341        catch (NullPointerException success){}  
1054      }
1055  
1056 <    /** Throws if threadFactory is set to null */
1057 <    public void testNullPointerException3() {
1058 <        try{
1059 <            ThreadFactory f = null;
1060 <            new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10),f);
1061 <            fail("ThreadPoolExecutor constructor should throw a NullPointerException");        
1056 >    /**
1057 >     * submit(runnable) throws RejectedExecutionException if saturated.
1058 >     */
1059 >    public void testSaturatedSubmitRunnable() {
1060 >        ThreadPoolExecutor p =
1061 >            new ThreadPoolExecutor(1, 1,
1062 >                                   LONG_DELAY_MS, MILLISECONDS,
1063 >                                   new ArrayBlockingQueue<Runnable>(1));
1064 >        final CountDownLatch done = new CountDownLatch(1);
1065 >        try {
1066 >            Runnable task = new CheckedRunnable() {
1067 >                public void realRun() throws InterruptedException {
1068 >                    done.await();
1069 >                }};
1070 >            for (int i = 0; i < 2; ++i)
1071 >                p.submit(task);
1072 >            for (int i = 0; i < 2; ++i) {
1073 >                try {
1074 >                    p.execute(task);
1075 >                    shouldThrow();
1076 >                } catch (RejectedExecutionException success) {}
1077 >                assertTrue(p.getTaskCount() <= 2);
1078 >            }
1079 >        } finally {
1080 >            done.countDown();
1081 >            joinPool(p);
1082          }
351        catch (NullPointerException success){}  
1083      }
1084 <
1085 <    
1086 <    /** Throws if corePoolSize argument is less than zero */
1087 <    public void testConstructor11() {
1088 <        try{
1089 <            new ThreadPoolExecutor(-1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyREHandler());
1090 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1084 >
1085 >    /**
1086 >     * submit(callable) throws RejectedExecutionException if saturated.
1087 >     */
1088 >    public void testSaturatedSubmitCallable() {
1089 >        ThreadPoolExecutor p =
1090 >            new ThreadPoolExecutor(1, 1,
1091 >                                   LONG_DELAY_MS, MILLISECONDS,
1092 >                                   new ArrayBlockingQueue<Runnable>(1));
1093 >        final CountDownLatch done = new CountDownLatch(1);
1094 >        try {
1095 >            Runnable task = new CheckedRunnable() {
1096 >                public void realRun() throws InterruptedException {
1097 >                    done.await();
1098 >                }};
1099 >            for (int i = 0; i < 2; ++i)
1100 >                p.submit(Executors.callable(task));
1101 >            for (int i = 0; i < 2; ++i) {
1102 >                try {
1103 >                    p.execute(task);
1104 >                    shouldThrow();
1105 >                } catch (RejectedExecutionException success) {}
1106 >                assertTrue(p.getTaskCount() <= 2);
1107 >            }
1108 >        } finally {
1109 >            done.countDown();
1110 >            joinPool(p);
1111          }
361        catch (IllegalArgumentException success){}
1112      }
1113  
1114 <    /** Throws if maximumPoolSize is less than zero */
1115 <    public void testConstructor12() {
1116 <        try{
1117 <            new ThreadPoolExecutor(1,-1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyREHandler());
1118 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1114 >    /**
1115 >     * executor using CallerRunsPolicy runs task if saturated.
1116 >     */
1117 >    public void testSaturatedExecute2() {
1118 >        RejectedExecutionHandler h = new ThreadPoolExecutor.CallerRunsPolicy();
1119 >        final ThreadPoolExecutor p =
1120 >            new ThreadPoolExecutor(1, 1,
1121 >                                   LONG_DELAY_MS,
1122 >                                   MILLISECONDS,
1123 >                                   new ArrayBlockingQueue<Runnable>(1),
1124 >                                   h);
1125 >        try {
1126 >            TrackedNoOpRunnable[] tasks = new TrackedNoOpRunnable[5];
1127 >            for (int i = 0; i < tasks.length; ++i)
1128 >                tasks[i] = new TrackedNoOpRunnable();
1129 >            TrackedLongRunnable mr = new TrackedLongRunnable();
1130 >            p.execute(mr);
1131 >            for (int i = 0; i < tasks.length; ++i)
1132 >                p.execute(tasks[i]);
1133 >            for (int i = 1; i < tasks.length; ++i)
1134 >                assertTrue(tasks[i].done);
1135 >            try { p.shutdownNow(); } catch (SecurityException ok) { return; }
1136 >        } finally {
1137 >            joinPool(p);
1138          }
370        catch (IllegalArgumentException success){}
1139      }
1140  
1141 <    /** Throws if maximumPoolSize is equal to zero */
1142 <    public void testConstructor13() {
1143 <        try{
1144 <            new ThreadPoolExecutor(1,0,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyREHandler());
1145 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1141 >    /**
1142 >     * executor using DiscardPolicy drops task if saturated.
1143 >     */
1144 >    public void testSaturatedExecute3() {
1145 >        RejectedExecutionHandler h = new ThreadPoolExecutor.DiscardPolicy();
1146 >        final ThreadPoolExecutor p =
1147 >            new ThreadPoolExecutor(1, 1,
1148 >                                   LONG_DELAY_MS, MILLISECONDS,
1149 >                                   new ArrayBlockingQueue<Runnable>(1),
1150 >                                   h);
1151 >        try {
1152 >            TrackedNoOpRunnable[] tasks = new TrackedNoOpRunnable[5];
1153 >            for (int i = 0; i < tasks.length; ++i)
1154 >                tasks[i] = new TrackedNoOpRunnable();
1155 >            p.execute(new TrackedLongRunnable());
1156 >            for (TrackedNoOpRunnable task : tasks)
1157 >                p.execute(task);
1158 >            for (TrackedNoOpRunnable task : tasks)
1159 >                assertFalse(task.done);
1160 >            try { p.shutdownNow(); } catch (SecurityException ok) { return; }
1161 >        } finally {
1162 >            joinPool(p);
1163          }
379        catch (IllegalArgumentException success){}
1164      }
1165  
1166 <    /** Throws if keepAliveTime is less than zero */
1167 <    public void testConstructor14() {
1168 <        try{
1169 <            new ThreadPoolExecutor(1,2,-1L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyREHandler());
1170 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1166 >    /**
1167 >     * executor using DiscardOldestPolicy drops oldest task if saturated.
1168 >     */
1169 >    public void testSaturatedExecute4() {
1170 >        RejectedExecutionHandler h = new ThreadPoolExecutor.DiscardOldestPolicy();
1171 >        final ThreadPoolExecutor p =
1172 >            new ThreadPoolExecutor(1, 1,
1173 >                                   LONG_DELAY_MS, MILLISECONDS,
1174 >                                   new ArrayBlockingQueue<Runnable>(1),
1175 >                                   h);
1176 >        try {
1177 >            p.execute(new TrackedLongRunnable());
1178 >            TrackedLongRunnable r2 = new TrackedLongRunnable();
1179 >            p.execute(r2);
1180 >            assertTrue(p.getQueue().contains(r2));
1181 >            TrackedNoOpRunnable r3 = new TrackedNoOpRunnable();
1182 >            p.execute(r3);
1183 >            assertFalse(p.getQueue().contains(r2));
1184 >            assertTrue(p.getQueue().contains(r3));
1185 >            try { p.shutdownNow(); } catch (SecurityException ok) { return; }
1186 >        } finally {
1187 >            joinPool(p);
1188          }
388        catch (IllegalArgumentException success){}
1189      }
1190  
1191 <    /** Throws if corePoolSize is greater than the maximumPoolSize */
1192 <    public void testConstructor15() {
1193 <        try{
1194 <            new ThreadPoolExecutor(2,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyREHandler());
1195 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1191 >    /**
1192 >     * execute throws RejectedExecutionException if shutdown
1193 >     */
1194 >    public void testRejectedExecutionExceptionOnShutdown() {
1195 >        ThreadPoolExecutor p =
1196 >            new ThreadPoolExecutor(1, 1,
1197 >                                   LONG_DELAY_MS, MILLISECONDS,
1198 >                                   new ArrayBlockingQueue<Runnable>(1));
1199 >        try { p.shutdown(); } catch (SecurityException ok) { return; }
1200 >        try {
1201 >            p.execute(new NoOpRunnable());
1202 >            shouldThrow();
1203 >        } catch (RejectedExecutionException success) {}
1204 >
1205 >        joinPool(p);
1206 >    }
1207 >
1208 >    /**
1209 >     * execute using CallerRunsPolicy drops task on shutdown
1210 >     */
1211 >    public void testCallerRunsOnShutdown() {
1212 >        RejectedExecutionHandler h = new ThreadPoolExecutor.CallerRunsPolicy();
1213 >        final ThreadPoolExecutor p =
1214 >            new ThreadPoolExecutor(1, 1,
1215 >                                   LONG_DELAY_MS, MILLISECONDS,
1216 >                                   new ArrayBlockingQueue<Runnable>(1), h);
1217 >
1218 >        try { p.shutdown(); } catch (SecurityException ok) { return; }
1219 >        try {
1220 >            TrackedNoOpRunnable r = new TrackedNoOpRunnable();
1221 >            p.execute(r);
1222 >            assertFalse(r.done);
1223 >        } finally {
1224 >            joinPool(p);
1225          }
397        catch (IllegalArgumentException success){}
1226      }
1227  
1228 <    /** Throws if workQueue is set to null */
1229 <    public void testNullPointerException4() {
1230 <        try{
1231 <            new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,null,new MyREHandler());
1232 <            fail("ThreadPoolExecutor constructor should throw a NullPointerException");        
1228 >    /**
1229 >     * execute using DiscardPolicy drops task on shutdown
1230 >     */
1231 >    public void testDiscardOnShutdown() {
1232 >        RejectedExecutionHandler h = new ThreadPoolExecutor.DiscardPolicy();
1233 >        ThreadPoolExecutor p =
1234 >            new ThreadPoolExecutor(1, 1,
1235 >                                   LONG_DELAY_MS, MILLISECONDS,
1236 >                                   new ArrayBlockingQueue<Runnable>(1),
1237 >                                   h);
1238 >
1239 >        try { p.shutdown(); } catch (SecurityException ok) { return; }
1240 >        try {
1241 >            TrackedNoOpRunnable r = new TrackedNoOpRunnable();
1242 >            p.execute(r);
1243 >            assertFalse(r.done);
1244 >        } finally {
1245 >            joinPool(p);
1246          }
406        catch (NullPointerException success){}  
1247      }
1248  
1249 <    /** Throws if handler is set to null */
1250 <    public void testNullPointerException5() {
1251 <        try{
1252 <            RejectedExecutionHandler r = null;
1253 <            new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10),r);
1254 <            fail("ThreadPoolExecutor constructor should throw a NullPointerException");        
1249 >    /**
1250 >     * execute using DiscardOldestPolicy drops task on shutdown
1251 >     */
1252 >    public void testDiscardOldestOnShutdown() {
1253 >        RejectedExecutionHandler h = new ThreadPoolExecutor.DiscardOldestPolicy();
1254 >        ThreadPoolExecutor p =
1255 >            new ThreadPoolExecutor(1, 1,
1256 >                                   LONG_DELAY_MS, MILLISECONDS,
1257 >                                   new ArrayBlockingQueue<Runnable>(1),
1258 >                                   h);
1259 >
1260 >        try { p.shutdown(); } catch (SecurityException ok) { return; }
1261 >        try {
1262 >            TrackedNoOpRunnable r = new TrackedNoOpRunnable();
1263 >            p.execute(r);
1264 >            assertFalse(r.done);
1265 >        } finally {
1266 >            joinPool(p);
1267          }
416        catch (NullPointerException success){}  
1268      }
1269  
1270 <    
1271 <    /** Throws if corePoolSize argument is less than zero */
1272 <    public void testConstructor16() {
1273 <        try{
1274 <            new ThreadPoolExecutor(-1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory(),new MyREHandler());
1275 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1270 >    /**
1271 >     * execute(null) throws NPE
1272 >     */
1273 >    public void testExecuteNull() {
1274 >        ThreadPoolExecutor p =
1275 >            new ThreadPoolExecutor(1, 2,
1276 >                                   LONG_DELAY_MS, MILLISECONDS,
1277 >                                   new ArrayBlockingQueue<Runnable>(10));
1278 >        try {
1279 >            p.execute(null);
1280 >            shouldThrow();
1281 >        } catch (NullPointerException success) {}
1282 >
1283 >        joinPool(p);
1284 >    }
1285 >
1286 >    /**
1287 >     * setCorePoolSize of negative value throws IllegalArgumentException
1288 >     */
1289 >    public void testCorePoolSizeIllegalArgumentException() {
1290 >        ThreadPoolExecutor p =
1291 >            new ThreadPoolExecutor(1, 2,
1292 >                                   LONG_DELAY_MS, MILLISECONDS,
1293 >                                   new ArrayBlockingQueue<Runnable>(10));
1294 >        try {
1295 >            p.setCorePoolSize(-1);
1296 >            shouldThrow();
1297 >        } catch (IllegalArgumentException success) {
1298 >        } finally {
1299 >            try { p.shutdown(); } catch (SecurityException ok) { return; }
1300          }
1301 <        catch (IllegalArgumentException success){}
1301 >        joinPool(p);
1302      }
1303  
1304 <    /** Throws if maximumPoolSize is less than zero */
1305 <    public void testConstructor17() {
1306 <        try{
1307 <            new ThreadPoolExecutor(1,-1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory(),new MyREHandler());
1308 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1304 >    /**
1305 >     * setMaximumPoolSize(int) throws IllegalArgumentException if
1306 >     * given a value less the core pool size
1307 >     */
1308 >    public void testMaximumPoolSizeIllegalArgumentException() {
1309 >        ThreadPoolExecutor p =
1310 >            new ThreadPoolExecutor(2, 3,
1311 >                                   LONG_DELAY_MS, MILLISECONDS,
1312 >                                   new ArrayBlockingQueue<Runnable>(10));
1313 >        try {
1314 >            p.setMaximumPoolSize(1);
1315 >            shouldThrow();
1316 >        } catch (IllegalArgumentException success) {
1317 >        } finally {
1318 >            try { p.shutdown(); } catch (SecurityException ok) { return; }
1319          }
1320 <        catch (IllegalArgumentException success){}
1320 >        joinPool(p);
1321      }
1322  
1323 <    /** Throws if maximumPoolSize is equal to zero */
1324 <    public void testConstructor18() {
1325 <        try{
1326 <            new ThreadPoolExecutor(1,0,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory(),new MyREHandler());
1327 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1323 >    /**
1324 >     * setMaximumPoolSize throws IllegalArgumentException
1325 >     * if given a negative value
1326 >     */
1327 >    public void testMaximumPoolSizeIllegalArgumentException2() {
1328 >        ThreadPoolExecutor p =
1329 >            new ThreadPoolExecutor(2, 3,
1330 >                                   LONG_DELAY_MS, MILLISECONDS,
1331 >                                   new ArrayBlockingQueue<Runnable>(10));
1332 >        try {
1333 >            p.setMaximumPoolSize(-1);
1334 >            shouldThrow();
1335 >        } catch (IllegalArgumentException success) {
1336 >        } finally {
1337 >            try { p.shutdown(); } catch (SecurityException ok) { return; }
1338          }
1339 <        catch (IllegalArgumentException success){}
1339 >        joinPool(p);
1340      }
1341  
1342 <    /** Throws if keepAliveTime is less than zero */
1343 <    public void testConstructor19() {
1344 <        try{
1345 <            new ThreadPoolExecutor(1,2,-1L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory(),new MyREHandler());
1346 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1342 >    /**
1343 >     * setKeepAliveTime throws IllegalArgumentException
1344 >     * when given a negative value
1345 >     */
1346 >    public void testKeepAliveTimeIllegalArgumentException() {
1347 >        ThreadPoolExecutor p =
1348 >            new ThreadPoolExecutor(2, 3,
1349 >                                   LONG_DELAY_MS, MILLISECONDS,
1350 >                                   new ArrayBlockingQueue<Runnable>(10));
1351 >        try {
1352 >            p.setKeepAliveTime(-1,MILLISECONDS);
1353 >            shouldThrow();
1354 >        } catch (IllegalArgumentException success) {
1355 >        } finally {
1356 >            try { p.shutdown(); } catch (SecurityException ok) { return; }
1357          }
1358 <        catch (IllegalArgumentException success){}
1358 >        joinPool(p);
1359      }
1360  
1361 <    /** Throws if corePoolSize is greater than the maximumPoolSize */
1362 <    public void testConstructor20() {
1363 <        try{
1364 <            new ThreadPoolExecutor(2,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory(),new MyREHandler());
1365 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1361 >    /**
1362 >     * terminated() is called on termination
1363 >     */
1364 >    public void testTerminated() {
1365 >        ExtendedTPE p = new ExtendedTPE();
1366 >        try { p.shutdown(); } catch (SecurityException ok) { return; }
1367 >        assertTrue(p.terminatedCalled());
1368 >        joinPool(p);
1369 >    }
1370 >
1371 >    /**
1372 >     * beforeExecute and afterExecute are called when executing task
1373 >     */
1374 >    public void testBeforeAfter() throws InterruptedException {
1375 >        ExtendedTPE p = new ExtendedTPE();
1376 >        try {
1377 >            final CountDownLatch done = new CountDownLatch(1);
1378 >            p.execute(new CheckedRunnable() {
1379 >                public void realRun() {
1380 >                    done.countDown();
1381 >                }});
1382 >            await(p.afterCalled);
1383 >            assertEquals(0, done.getCount());
1384 >            assertTrue(p.afterCalled());
1385 >            assertTrue(p.beforeCalled());
1386 >            try { p.shutdown(); } catch (SecurityException ok) { return; }
1387 >        } finally {
1388 >            joinPool(p);
1389 >        }
1390 >    }
1391 >
1392 >    /**
1393 >     * completed submit of callable returns result
1394 >     */
1395 >    public void testSubmitCallable() throws Exception {
1396 >        ExecutorService e =
1397 >            new ThreadPoolExecutor(2, 2,
1398 >                                   LONG_DELAY_MS, MILLISECONDS,
1399 >                                   new ArrayBlockingQueue<Runnable>(10));
1400 >        try {
1401 >            Future<String> future = e.submit(new StringTask());
1402 >            String result = future.get();
1403 >            assertSame(TEST_STRING, result);
1404 >        } finally {
1405 >            joinPool(e);
1406 >        }
1407 >    }
1408 >
1409 >    /**
1410 >     * completed submit of runnable returns successfully
1411 >     */
1412 >    public void testSubmitRunnable() throws Exception {
1413 >        ExecutorService e =
1414 >            new ThreadPoolExecutor(2, 2,
1415 >                                   LONG_DELAY_MS, MILLISECONDS,
1416 >                                   new ArrayBlockingQueue<Runnable>(10));
1417 >        try {
1418 >            Future<?> future = e.submit(new NoOpRunnable());
1419 >            future.get();
1420 >            assertTrue(future.isDone());
1421 >        } finally {
1422 >            joinPool(e);
1423 >        }
1424 >    }
1425 >
1426 >    /**
1427 >     * completed submit of (runnable, result) returns result
1428 >     */
1429 >    public void testSubmitRunnable2() throws Exception {
1430 >        ExecutorService e =
1431 >            new ThreadPoolExecutor(2, 2,
1432 >                                   LONG_DELAY_MS, MILLISECONDS,
1433 >                                   new ArrayBlockingQueue<Runnable>(10));
1434 >        try {
1435 >            Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING);
1436 >            String result = future.get();
1437 >            assertSame(TEST_STRING, result);
1438 >        } finally {
1439 >            joinPool(e);
1440 >        }
1441 >    }
1442 >
1443 >    /**
1444 >     * invokeAny(null) throws NPE
1445 >     */
1446 >    public void testInvokeAny1() throws Exception {
1447 >        ExecutorService e =
1448 >            new ThreadPoolExecutor(2, 2,
1449 >                                   LONG_DELAY_MS, MILLISECONDS,
1450 >                                   new ArrayBlockingQueue<Runnable>(10));
1451 >        try {
1452 >            e.invokeAny(null);
1453 >            shouldThrow();
1454 >        } catch (NullPointerException success) {
1455 >        } finally {
1456 >            joinPool(e);
1457 >        }
1458 >    }
1459 >
1460 >    /**
1461 >     * invokeAny(empty collection) throws IAE
1462 >     */
1463 >    public void testInvokeAny2() throws Exception {
1464 >        ExecutorService e =
1465 >            new ThreadPoolExecutor(2, 2,
1466 >                                   LONG_DELAY_MS, MILLISECONDS,
1467 >                                   new ArrayBlockingQueue<Runnable>(10));
1468 >        try {
1469 >            e.invokeAny(new ArrayList<Callable<String>>());
1470 >            shouldThrow();
1471 >        } catch (IllegalArgumentException success) {
1472 >        } finally {
1473 >            joinPool(e);
1474 >        }
1475 >    }
1476 >
1477 >    /**
1478 >     * invokeAny(c) throws NPE if c has null elements
1479 >     */
1480 >    public void testInvokeAny3() throws Exception {
1481 >        final CountDownLatch latch = new CountDownLatch(1);
1482 >        final ExecutorService e =
1483 >            new ThreadPoolExecutor(2, 2,
1484 >                                   LONG_DELAY_MS, MILLISECONDS,
1485 >                                   new ArrayBlockingQueue<Runnable>(10));
1486 >        List<Callable<String>> l = new ArrayList<Callable<String>>();
1487 >        l.add(latchAwaitingStringTask(latch));
1488 >        l.add(null);
1489 >        try {
1490 >            e.invokeAny(l);
1491 >            shouldThrow();
1492 >        } catch (NullPointerException success) {
1493 >        } finally {
1494 >            latch.countDown();
1495 >            joinPool(e);
1496 >        }
1497 >    }
1498 >
1499 >    /**
1500 >     * invokeAny(c) throws ExecutionException if no task completes
1501 >     */
1502 >    public void testInvokeAny4() throws Exception {
1503 >        ExecutorService e =
1504 >            new ThreadPoolExecutor(2, 2,
1505 >                                   LONG_DELAY_MS, MILLISECONDS,
1506 >                                   new ArrayBlockingQueue<Runnable>(10));
1507 >        List<Callable<String>> l = new ArrayList<Callable<String>>();
1508 >        l.add(new NPETask());
1509 >        try {
1510 >            e.invokeAny(l);
1511 >            shouldThrow();
1512 >        } catch (ExecutionException success) {
1513 >            assertTrue(success.getCause() instanceof NullPointerException);
1514 >        } finally {
1515 >            joinPool(e);
1516 >        }
1517 >    }
1518 >
1519 >    /**
1520 >     * invokeAny(c) returns result of some task
1521 >     */
1522 >    public void testInvokeAny5() throws Exception {
1523 >        ExecutorService e =
1524 >            new ThreadPoolExecutor(2, 2,
1525 >                                   LONG_DELAY_MS, MILLISECONDS,
1526 >                                   new ArrayBlockingQueue<Runnable>(10));
1527 >        try {
1528 >            List<Callable<String>> l = new ArrayList<Callable<String>>();
1529 >            l.add(new StringTask());
1530 >            l.add(new StringTask());
1531 >            String result = e.invokeAny(l);
1532 >            assertSame(TEST_STRING, result);
1533 >        } finally {
1534 >            joinPool(e);
1535          }
462        catch (IllegalArgumentException success){}
1536      }
1537  
1538 <    /** Throws if workQueue is set to null */
1539 <    public void testNullPointerException6() {
1540 <        try{
1541 <            new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,null,new MyThreadFactory(),new MyREHandler());
1542 <            fail("ThreadPoolExecutor constructor should throw a NullPointerException");        
1538 >    /**
1539 >     * invokeAll(null) throws NPE
1540 >     */
1541 >    public void testInvokeAll1() throws Exception {
1542 >        ExecutorService e =
1543 >            new ThreadPoolExecutor(2, 2,
1544 >                                   LONG_DELAY_MS, MILLISECONDS,
1545 >                                   new ArrayBlockingQueue<Runnable>(10));
1546 >        try {
1547 >            e.invokeAll(null);
1548 >            shouldThrow();
1549 >        } catch (NullPointerException success) {
1550 >        } finally {
1551 >            joinPool(e);
1552          }
471        catch (NullPointerException success){}  
1553      }
1554  
1555 <    /** Throws if handler is set to null */
1556 <    public void testNullPointerException7() {
1557 <        try{
1558 <            RejectedExecutionHandler r = null;
1559 <            new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory(),r);
1560 <            fail("ThreadPoolExecutor constructor should throw a NullPointerException");        
1555 >    /**
1556 >     * invokeAll(empty collection) returns empty collection
1557 >     */
1558 >    public void testInvokeAll2() throws InterruptedException {
1559 >        ExecutorService e =
1560 >            new ThreadPoolExecutor(2, 2,
1561 >                                   LONG_DELAY_MS, MILLISECONDS,
1562 >                                   new ArrayBlockingQueue<Runnable>(10));
1563 >        try {
1564 >            List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>());
1565 >            assertTrue(r.isEmpty());
1566 >        } finally {
1567 >            joinPool(e);
1568          }
481        catch (NullPointerException success){}  
1569      }
1570  
1571 <    /** Throws if ThreadFactory is set top null */
1572 <    public void testNullPointerException8() {
1573 <        try{
1574 <            ThreadFactory f = null;
1575 <            new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10),f,new MyREHandler());
1576 <            fail("ThreadPoolExecutor constructor should throw a NullPointerException");        
1571 >    /**
1572 >     * invokeAll(c) throws NPE if c has null elements
1573 >     */
1574 >    public void testInvokeAll3() throws Exception {
1575 >        ExecutorService e =
1576 >            new ThreadPoolExecutor(2, 2,
1577 >                                   LONG_DELAY_MS, MILLISECONDS,
1578 >                                   new ArrayBlockingQueue<Runnable>(10));
1579 >        List<Callable<String>> l = new ArrayList<Callable<String>>();
1580 >        l.add(new StringTask());
1581 >        l.add(null);
1582 >        try {
1583 >            e.invokeAll(l);
1584 >            shouldThrow();
1585 >        } catch (NullPointerException success) {
1586 >        } finally {
1587 >            joinPool(e);
1588          }
491        catch (NullPointerException successdn8){}  
1589      }
493    
1590  
1591      /**
1592 <     *   execute will throw RejectedExcutionException
497 <     *  ThreadPoolExecutor will throw one when more runnables are
498 <     *  executed then will fit in the Queue.
1592 >     * get of element of invokeAll(c) throws exception on failed task
1593       */
1594 <    public void testRejectedExecutionException(){
1595 <        ThreadPoolExecutor tpe = null;
1596 <        try{
1597 <            tpe = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(1));
1598 <        } catch(Exception e){}
1599 <        tpe.shutdown();
1600 <        try{
1601 <            tpe.execute(new NoOpRunnable());
1602 <            fail("ThreadPoolExecutor - void execute(Runnable) should throw RejectedExecutionException");
1603 <        } catch(RejectedExecutionException success){}
1604 <        
1605 <        joinPool(tpe);
1594 >    public void testInvokeAll4() throws Exception {
1595 >        ExecutorService e =
1596 >            new ThreadPoolExecutor(2, 2,
1597 >                                   LONG_DELAY_MS, MILLISECONDS,
1598 >                                   new ArrayBlockingQueue<Runnable>(10));
1599 >        try {
1600 >            List<Callable<String>> l = new ArrayList<Callable<String>>();
1601 >            l.add(new NPETask());
1602 >            List<Future<String>> futures = e.invokeAll(l);
1603 >            assertEquals(1, futures.size());
1604 >            try {
1605 >                futures.get(0).get();
1606 >                shouldThrow();
1607 >            } catch (ExecutionException success) {
1608 >                assertTrue(success.getCause() instanceof NullPointerException);
1609 >            }
1610 >        } finally {
1611 >            joinPool(e);
1612 >        }
1613      }
1614 <    
1614 >
1615 >    /**
1616 >     * invokeAll(c) returns results of all completed tasks
1617 >     */
1618 >    public void testInvokeAll5() throws Exception {
1619 >        ExecutorService e =
1620 >            new ThreadPoolExecutor(2, 2,
1621 >                                   LONG_DELAY_MS, MILLISECONDS,
1622 >                                   new ArrayBlockingQueue<Runnable>(10));
1623 >        try {
1624 >            List<Callable<String>> l = new ArrayList<Callable<String>>();
1625 >            l.add(new StringTask());
1626 >            l.add(new StringTask());
1627 >            List<Future<String>> futures = e.invokeAll(l);
1628 >            assertEquals(2, futures.size());
1629 >            for (Future<String> future : futures)
1630 >                assertSame(TEST_STRING, future.get());
1631 >        } finally {
1632 >            joinPool(e);
1633 >        }
1634 >    }
1635 >
1636      /**
1637 <     *   setCorePoolSize will throw IllegalArgumentException
516 <     *  when given a negative
1637 >     * timed invokeAny(null) throws NPE
1638       */
1639 <    public void testCorePoolSizeIllegalArgumentException(){
1640 <        ThreadPoolExecutor tpe = null;
1641 <        try{
1642 <            tpe = new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10));
1643 <        } catch(Exception e){}
1644 <        try{
1645 <            tpe.setCorePoolSize(-1);
1646 <            fail("ThreadPoolExecutor - void setCorePoolSize(int) should throw IllegalArgumentException");
1647 <        } catch(IllegalArgumentException success){
1639 >    public void testTimedInvokeAny1() throws Exception {
1640 >        ExecutorService e =
1641 >            new ThreadPoolExecutor(2, 2,
1642 >                                   LONG_DELAY_MS, MILLISECONDS,
1643 >                                   new ArrayBlockingQueue<Runnable>(10));
1644 >        try {
1645 >            e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS);
1646 >            shouldThrow();
1647 >        } catch (NullPointerException success) {
1648          } finally {
1649 <            tpe.shutdown();
1649 >            joinPool(e);
1650          }
1651 <        joinPool(tpe);
531 <    }  
1651 >    }
1652  
533    
1653      /**
1654 <     *   setMaximumPoolSize(int) will throw IllegalArgumentException
1655 <     *  if given a value less the it's actual core pool size
1656 <     */  
1657 <    public void testMaximumPoolSizeIllegalArgumentException(){
1658 <        ThreadPoolExecutor tpe = null;
1659 <        try{
1660 <            tpe = new ThreadPoolExecutor(2,3,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10));
1661 <        } catch(Exception e){}
1662 <        try{
1663 <            tpe.setMaximumPoolSize(1);
1664 <            fail("ThreadPoolExecutor - void setMaximumPoolSize(int) should throw IllegalArgumentException");
1665 <        } catch(IllegalArgumentException success){
1654 >     * timed invokeAny(,,null) throws NPE
1655 >     */
1656 >    public void testTimedInvokeAnyNullTimeUnit() throws Exception {
1657 >        ExecutorService e =
1658 >            new ThreadPoolExecutor(2, 2,
1659 >                                   LONG_DELAY_MS, MILLISECONDS,
1660 >                                   new ArrayBlockingQueue<Runnable>(10));
1661 >        List<Callable<String>> l = new ArrayList<Callable<String>>();
1662 >        l.add(new StringTask());
1663 >        try {
1664 >            e.invokeAny(l, MEDIUM_DELAY_MS, null);
1665 >            shouldThrow();
1666 >        } catch (NullPointerException success) {
1667          } finally {
1668 <            tpe.shutdown();
1668 >            joinPool(e);
1669          }
550        joinPool(tpe);
1670      }
1671 <    
1671 >
1672      /**
1673 <     *   setMaximumPoolSize will throw IllegalArgumentException
555 <     *  if given a negative number
1673 >     * timed invokeAny(empty collection) throws IAE
1674       */
1675 <    public void testMaximumPoolSizeIllegalArgumentException2(){
1676 <        ThreadPoolExecutor tpe = null;
1677 <        try{
1678 <            tpe = new ThreadPoolExecutor(2,3,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10));
1679 <        } catch(Exception e){}
1680 <        try{
1681 <            tpe.setMaximumPoolSize(-1);
1682 <            fail("ThreadPoolExecutor - void setMaximumPoolSize(int) should throw IllegalArgumentException");
1683 <        } catch(IllegalArgumentException success){
1675 >    public void testTimedInvokeAny2() throws Exception {
1676 >        ExecutorService e =
1677 >            new ThreadPoolExecutor(2, 2,
1678 >                                   LONG_DELAY_MS, MILLISECONDS,
1679 >                                   new ArrayBlockingQueue<Runnable>(10));
1680 >        try {
1681 >            e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
1682 >            shouldThrow();
1683 >        } catch (IllegalArgumentException success) {
1684          } finally {
1685 <            tpe.shutdown();
1685 >            joinPool(e);
1686          }
569        joinPool(tpe);
1687      }
571    
1688  
1689      /**
1690 <     *   setKeepAliveTime will throw IllegalArgumentException
575 <     *  when given a negative value
1690 >     * timed invokeAny(c) throws NPE if c has null elements
1691       */
1692 <    public void testKeepAliveTimeIllegalArgumentException(){
1693 <        ThreadPoolExecutor tpe = null;
1694 <        try{
1695 <            tpe = new ThreadPoolExecutor(2,3,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10));
1696 <        } catch(Exception e){}
1697 <        
1698 <        try{
1699 <            tpe.setKeepAliveTime(-1,TimeUnit.MILLISECONDS);
1700 <            fail("ThreadPoolExecutor - void setKeepAliveTime(long, TimeUnit) should throw IllegalArgumentException");
1701 <        } catch(IllegalArgumentException success){
1692 >    public void testTimedInvokeAny3() throws Exception {
1693 >        final CountDownLatch latch = new CountDownLatch(1);
1694 >        final ExecutorService e =
1695 >            new ThreadPoolExecutor(2, 2,
1696 >                                   LONG_DELAY_MS, MILLISECONDS,
1697 >                                   new ArrayBlockingQueue<Runnable>(10));
1698 >        List<Callable<String>> l = new ArrayList<Callable<String>>();
1699 >        l.add(latchAwaitingStringTask(latch));
1700 >        l.add(null);
1701 >        try {
1702 >            e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1703 >            shouldThrow();
1704 >        } catch (NullPointerException success) {
1705          } finally {
1706 <            tpe.shutdown();
1706 >            latch.countDown();
1707 >            joinPool(e);
1708          }
590        joinPool(tpe);
1709      }
1710 <  
1710 >
1711 >    /**
1712 >     * timed invokeAny(c) throws ExecutionException if no task completes
1713 >     */
1714 >    public void testTimedInvokeAny4() throws Exception {
1715 >        ExecutorService e =
1716 >            new ThreadPoolExecutor(2, 2,
1717 >                                   LONG_DELAY_MS, MILLISECONDS,
1718 >                                   new ArrayBlockingQueue<Runnable>(10));
1719 >        List<Callable<String>> l = new ArrayList<Callable<String>>();
1720 >        l.add(new NPETask());
1721 >        try {
1722 >            e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1723 >            shouldThrow();
1724 >        } catch (ExecutionException success) {
1725 >            assertTrue(success.getCause() instanceof NullPointerException);
1726 >        } finally {
1727 >            joinPool(e);
1728 >        }
1729 >    }
1730 >
1731 >    /**
1732 >     * timed invokeAny(c) returns result of some task
1733 >     */
1734 >    public void testTimedInvokeAny5() throws Exception {
1735 >        ExecutorService e =
1736 >            new ThreadPoolExecutor(2, 2,
1737 >                                   LONG_DELAY_MS, MILLISECONDS,
1738 >                                   new ArrayBlockingQueue<Runnable>(10));
1739 >        try {
1740 >            List<Callable<String>> l = new ArrayList<Callable<String>>();
1741 >            l.add(new StringTask());
1742 >            l.add(new StringTask());
1743 >            String result = e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1744 >            assertSame(TEST_STRING, result);
1745 >        } finally {
1746 >            joinPool(e);
1747 >        }
1748 >    }
1749 >
1750 >    /**
1751 >     * timed invokeAll(null) throws NPE
1752 >     */
1753 >    public void testTimedInvokeAll1() throws Exception {
1754 >        ExecutorService e =
1755 >            new ThreadPoolExecutor(2, 2,
1756 >                                   LONG_DELAY_MS, MILLISECONDS,
1757 >                                   new ArrayBlockingQueue<Runnable>(10));
1758 >        try {
1759 >            e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS);
1760 >            shouldThrow();
1761 >        } catch (NullPointerException success) {
1762 >        } finally {
1763 >            joinPool(e);
1764 >        }
1765 >    }
1766 >
1767 >    /**
1768 >     * timed invokeAll(,,null) throws NPE
1769 >     */
1770 >    public void testTimedInvokeAllNullTimeUnit() throws Exception {
1771 >        ExecutorService e =
1772 >            new ThreadPoolExecutor(2, 2,
1773 >                                   LONG_DELAY_MS, MILLISECONDS,
1774 >                                   new ArrayBlockingQueue<Runnable>(10));
1775 >        List<Callable<String>> l = new ArrayList<Callable<String>>();
1776 >        l.add(new StringTask());
1777 >        try {
1778 >            e.invokeAll(l, MEDIUM_DELAY_MS, null);
1779 >            shouldThrow();
1780 >        } catch (NullPointerException success) {
1781 >        } finally {
1782 >            joinPool(e);
1783 >        }
1784 >    }
1785 >
1786 >    /**
1787 >     * timed invokeAll(empty collection) returns empty collection
1788 >     */
1789 >    public void testTimedInvokeAll2() throws InterruptedException {
1790 >        ExecutorService e =
1791 >            new ThreadPoolExecutor(2, 2,
1792 >                                   LONG_DELAY_MS, MILLISECONDS,
1793 >                                   new ArrayBlockingQueue<Runnable>(10));
1794 >        try {
1795 >            List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
1796 >            assertTrue(r.isEmpty());
1797 >        } finally {
1798 >            joinPool(e);
1799 >        }
1800 >    }
1801 >
1802 >    /**
1803 >     * timed invokeAll(c) throws NPE if c has null elements
1804 >     */
1805 >    public void testTimedInvokeAll3() throws Exception {
1806 >        ExecutorService e =
1807 >            new ThreadPoolExecutor(2, 2,
1808 >                                   LONG_DELAY_MS, MILLISECONDS,
1809 >                                   new ArrayBlockingQueue<Runnable>(10));
1810 >        List<Callable<String>> l = new ArrayList<Callable<String>>();
1811 >        l.add(new StringTask());
1812 >        l.add(null);
1813 >        try {
1814 >            e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1815 >            shouldThrow();
1816 >        } catch (NullPointerException success) {
1817 >        } finally {
1818 >            joinPool(e);
1819 >        }
1820 >    }
1821 >
1822 >    /**
1823 >     * get of element of invokeAll(c) throws exception on failed task
1824 >     */
1825 >    public void testTimedInvokeAll4() throws Exception {
1826 >        ExecutorService e =
1827 >            new ThreadPoolExecutor(2, 2,
1828 >                                   LONG_DELAY_MS, MILLISECONDS,
1829 >                                   new ArrayBlockingQueue<Runnable>(10));
1830 >        List<Callable<String>> l = new ArrayList<Callable<String>>();
1831 >        l.add(new NPETask());
1832 >        List<Future<String>> futures =
1833 >            e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1834 >        assertEquals(1, futures.size());
1835 >        try {
1836 >            futures.get(0).get();
1837 >            shouldThrow();
1838 >        } catch (ExecutionException success) {
1839 >            assertTrue(success.getCause() instanceof NullPointerException);
1840 >        } finally {
1841 >            joinPool(e);
1842 >        }
1843 >    }
1844 >
1845 >    /**
1846 >     * timed invokeAll(c) returns results of all completed tasks
1847 >     */
1848 >    public void testTimedInvokeAll5() throws Exception {
1849 >        ExecutorService e =
1850 >            new ThreadPoolExecutor(2, 2,
1851 >                                   LONG_DELAY_MS, MILLISECONDS,
1852 >                                   new ArrayBlockingQueue<Runnable>(10));
1853 >        try {
1854 >            List<Callable<String>> l = new ArrayList<Callable<String>>();
1855 >            l.add(new StringTask());
1856 >            l.add(new StringTask());
1857 >            List<Future<String>> futures =
1858 >                e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1859 >            assertEquals(2, futures.size());
1860 >            for (Future<String> future : futures)
1861 >                assertSame(TEST_STRING, future.get());
1862 >        } finally {
1863 >            joinPool(e);
1864 >        }
1865 >    }
1866 >
1867 >    /**
1868 >     * timed invokeAll(c) cancels tasks not completed by timeout
1869 >     */
1870 >    public void testTimedInvokeAll6() throws Exception {
1871 >        ExecutorService e =
1872 >            new ThreadPoolExecutor(2, 2,
1873 >                                   LONG_DELAY_MS, MILLISECONDS,
1874 >                                   new ArrayBlockingQueue<Runnable>(10));
1875 >        try {
1876 >            List<Callable<String>> l = new ArrayList<Callable<String>>();
1877 >            l.add(new StringTask());
1878 >            l.add(Executors.callable(new MediumPossiblyInterruptedRunnable(), TEST_STRING));
1879 >            l.add(new StringTask());
1880 >            List<Future<String>> futures =
1881 >                e.invokeAll(l, SHORT_DELAY_MS, MILLISECONDS);
1882 >            assertEquals(l.size(), futures.size());
1883 >            for (Future future : futures)
1884 >                assertTrue(future.isDone());
1885 >            assertFalse(futures.get(0).isCancelled());
1886 >            assertTrue(futures.get(1).isCancelled());
1887 >        } finally {
1888 >            joinPool(e);
1889 >        }
1890 >    }
1891 >
1892 >    /**
1893 >     * Execution continues if there is at least one thread even if
1894 >     * thread factory fails to create more
1895 >     */
1896 >    public void testFailingThreadFactory() throws InterruptedException {
1897 >        final ExecutorService e =
1898 >            new ThreadPoolExecutor(100, 100,
1899 >                                   LONG_DELAY_MS, MILLISECONDS,
1900 >                                   new LinkedBlockingQueue<Runnable>(),
1901 >                                   new FailingThreadFactory());
1902 >        try {
1903 >            final int TASKS = 100;
1904 >            final CountDownLatch done = new CountDownLatch(TASKS);
1905 >            for (int k = 0; k < TASKS; ++k)
1906 >                e.execute(new CheckedRunnable() {
1907 >                    public void realRun() {
1908 >                        done.countDown();
1909 >                    }});
1910 >            assertTrue(done.await(LONG_DELAY_MS, MILLISECONDS));
1911 >        } finally {
1912 >            joinPool(e);
1913 >        }
1914 >    }
1915 >
1916 >    /**
1917 >     * allowsCoreThreadTimeOut is by default false.
1918 >     */
1919 >    public void testAllowsCoreThreadTimeOut() {
1920 >        final ThreadPoolExecutor p =
1921 >            new ThreadPoolExecutor(2, 2,
1922 >                                   1000, MILLISECONDS,
1923 >                                   new ArrayBlockingQueue<Runnable>(10));
1924 >        assertFalse(p.allowsCoreThreadTimeOut());
1925 >        joinPool(p);
1926 >    }
1927 >
1928 >    /**
1929 >     * allowCoreThreadTimeOut(true) causes idle threads to time out
1930 >     */
1931 >    public void testAllowCoreThreadTimeOut_true() throws Exception {
1932 >        long coreThreadTimeOut = SHORT_DELAY_MS;
1933 >        final ThreadPoolExecutor p =
1934 >            new ThreadPoolExecutor(2, 10,
1935 >                                   coreThreadTimeOut, MILLISECONDS,
1936 >                                   new ArrayBlockingQueue<Runnable>(10));
1937 >        final CountDownLatch threadStarted = new CountDownLatch(1);
1938 >        try {
1939 >            p.allowCoreThreadTimeOut(true);
1940 >            p.execute(new CheckedRunnable() {
1941 >                public void realRun() {
1942 >                    threadStarted.countDown();
1943 >                    assertEquals(1, p.getPoolSize());
1944 >                }});
1945 >            await(threadStarted);
1946 >            delay(coreThreadTimeOut);
1947 >            long startTime = System.nanoTime();
1948 >            while (p.getPoolSize() > 0
1949 >                   && millisElapsedSince(startTime) < LONG_DELAY_MS)
1950 >                Thread.yield();
1951 >            assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1952 >            assertEquals(0, p.getPoolSize());
1953 >        } finally {
1954 >            joinPool(p);
1955 >        }
1956 >    }
1957 >
1958 >    /**
1959 >     * allowCoreThreadTimeOut(false) causes idle threads not to time out
1960 >     */
1961 >    public void testAllowCoreThreadTimeOut_false() throws Exception {
1962 >        long coreThreadTimeOut = SHORT_DELAY_MS;
1963 >        final ThreadPoolExecutor p =
1964 >            new ThreadPoolExecutor(2, 10,
1965 >                                   coreThreadTimeOut, MILLISECONDS,
1966 >                                   new ArrayBlockingQueue<Runnable>(10));
1967 >        final CountDownLatch threadStarted = new CountDownLatch(1);
1968 >        try {
1969 >            p.allowCoreThreadTimeOut(false);
1970 >            p.execute(new CheckedRunnable() {
1971 >                public void realRun() throws InterruptedException {
1972 >                    threadStarted.countDown();
1973 >                    assertTrue(p.getPoolSize() >= 1);
1974 >                }});
1975 >            delay(2 * coreThreadTimeOut);
1976 >            assertTrue(p.getPoolSize() >= 1);
1977 >        } finally {
1978 >            joinPool(p);
1979 >        }
1980 >    }
1981 >
1982 >    /**
1983 >     * execute allows the same task to be submitted multiple times, even
1984 >     * if rejected
1985 >     */
1986 >    public void testRejectedRecycledTask() throws InterruptedException {
1987 >        final int nTasks = 1000;
1988 >        final CountDownLatch done = new CountDownLatch(nTasks);
1989 >        final Runnable recycledTask = new Runnable() {
1990 >            public void run() {
1991 >                done.countDown();
1992 >            }};
1993 >        final ThreadPoolExecutor p =
1994 >            new ThreadPoolExecutor(1, 30, 60, TimeUnit.SECONDS,
1995 >                                   new ArrayBlockingQueue(30));
1996 >        try {
1997 >            for (int i = 0; i < nTasks; ++i) {
1998 >                for (;;) {
1999 >                    try {
2000 >                        p.execute(recycledTask);
2001 >                        break;
2002 >                    }
2003 >                    catch (RejectedExecutionException ignore) {}
2004 >                }
2005 >            }
2006 >            // enough time to run all tasks
2007 >            assertTrue(done.await(nTasks * SHORT_DELAY_MS, MILLISECONDS));
2008 >        } finally {
2009 >            joinPool(p);
2010 >        }
2011 >    }
2012 >
2013   }

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