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Comparing jsr166/src/test/tck/ThreadPoolExecutorTest.java (file contents):
Revision 1.1 by dl, Sun Aug 31 19:24:56 2003 UTC vs.
Revision 1.94 by jsr166, Sun Oct 4 03:52:33 2015 UTC

# Line 1 | Line 1
1   /*
2 < * Written by members of JCP JSR-166 Expert Group and released to the
3 < * public domain. Use, modify, and redistribute this code in any way
4 < * without acknowledgement. Other contributors include Andrew Wright,
5 < * Jeffrey Hayes, Pat Fischer, Mike Judd.
2 > * Written by Doug Lea with assistance from members of JCP JSR-166
3 > * Expert Group and released to the public domain, as explained at
4 > * http://creativecommons.org/publicdomain/zero/1.0/
5 > * Other contributors include Andrew Wright, Jeffrey Hayes,
6 > * Pat Fisher, Mike Judd.
7   */
8  
9 < import java.util.concurrent.*;
10 < import junit.framework.*;
9 > import static java.util.concurrent.TimeUnit.MILLISECONDS;
10 > import static java.util.concurrent.TimeUnit.NANOSECONDS;
11 > import static java.util.concurrent.TimeUnit.SECONDS;
12 >
13 > import java.util.ArrayList;
14   import java.util.List;
15 + import java.util.concurrent.ArrayBlockingQueue;
16 + import java.util.concurrent.BlockingQueue;
17 + import java.util.concurrent.Callable;
18 + import java.util.concurrent.CancellationException;
19 + import java.util.concurrent.CountDownLatch;
20 + import java.util.concurrent.ExecutionException;
21 + import java.util.concurrent.Executors;
22 + import java.util.concurrent.ExecutorService;
23 + import java.util.concurrent.Future;
24 + import java.util.concurrent.FutureTask;
25 + import java.util.concurrent.LinkedBlockingQueue;
26 + import java.util.concurrent.RejectedExecutionException;
27 + import java.util.concurrent.RejectedExecutionHandler;
28 + import java.util.concurrent.SynchronousQueue;
29 + import java.util.concurrent.ThreadFactory;
30 + import java.util.concurrent.ThreadPoolExecutor;
31 + import java.util.concurrent.TimeUnit;
32 + import java.util.concurrent.atomic.AtomicInteger;
33 +
34 + import junit.framework.Test;
35 + import junit.framework.TestSuite;
36  
37 < public class ThreadPoolExecutorTest extends TestCase{
37 > public class ThreadPoolExecutorTest extends JSR166TestCase {
38      public static void main(String[] args) {
39 <        junit.textui.TestRunner.run (suite());  
39 >        main(suite(), args);
40      }
16
17
41      public static Test suite() {
42          return new TestSuite(ThreadPoolExecutorTest.class);
43      }
44 <    
45 <    private static long SHORT_DELAY_MS = 100;
46 <    private static long MEDIUM_DELAY_MS = 1000;
47 <    private static long LONG_DELAY_MS = 10000;
48 <
49 < //---- testThread class to implement ThreadFactory for use in constructors
50 <    static class testThread implements ThreadFactory{
51 <        public Thread newThread(Runnable r){
44 >
45 >    static class ExtendedTPE extends ThreadPoolExecutor {
46 >        final CountDownLatch beforeCalled = new CountDownLatch(1);
47 >        final CountDownLatch afterCalled = new CountDownLatch(1);
48 >        final CountDownLatch terminatedCalled = new CountDownLatch(1);
49 >
50 >        public ExtendedTPE() {
51 >            super(1, 1, LONG_DELAY_MS, MILLISECONDS, new SynchronousQueue<Runnable>());
52 >        }
53 >        protected void beforeExecute(Thread t, Runnable r) {
54 >            beforeCalled.countDown();
55 >        }
56 >        protected void afterExecute(Runnable r, Throwable t) {
57 >            afterCalled.countDown();
58 >        }
59 >        protected void terminated() {
60 >            terminatedCalled.countDown();
61 >        }
62 >
63 >        public boolean beforeCalled() {
64 >            return beforeCalled.getCount() == 0;
65 >        }
66 >        public boolean afterCalled() {
67 >            return afterCalled.getCount() == 0;
68 >        }
69 >        public boolean terminatedCalled() {
70 >            return terminatedCalled.getCount() == 0;
71 >        }
72 >    }
73 >
74 >    static class FailingThreadFactory implements ThreadFactory {
75 >        int calls = 0;
76 >        public Thread newThread(Runnable r) {
77 >            if (++calls > 1) return null;
78              return new Thread(r);
79 <        }  
79 >        }
80      }
81  
82 < //---- testReject class to implement RejectedExecutionHandler for use in the constructors
83 <    static class testReject implements RejectedExecutionHandler{
84 <        public void rejectedExecution(Runnable r, ThreadPoolExecutor executor){}
82 >    /**
83 >     * execute successfully executes a runnable
84 >     */
85 >    public void testExecute() throws InterruptedException {
86 >        final ThreadPoolExecutor p =
87 >            new ThreadPoolExecutor(1, 1,
88 >                                   LONG_DELAY_MS, MILLISECONDS,
89 >                                   new ArrayBlockingQueue<Runnable>(10));
90 >        try (PoolCleaner cleaner = cleaner(p)) {
91 >            final CountDownLatch done = new CountDownLatch(1);
92 >            final Runnable task = new CheckedRunnable() {
93 >                public void realRun() { done.countDown(); }};
94 >            p.execute(task);
95 >            assertTrue(done.await(LONG_DELAY_MS, MILLISECONDS));
96 >        }
97      }
98  
99 <    public Runnable newRunnable(){
100 <        return new Runnable(){
101 <                public void run(){
102 <                    try{Thread.sleep(MEDIUM_DELAY_MS);
103 <                    } catch(Exception e){
104 <                    }
105 <                }
106 <            };
99 >    /**
100 >     * getActiveCount increases but doesn't overestimate, when a
101 >     * thread becomes active
102 >     */
103 >    public void testGetActiveCount() throws InterruptedException {
104 >        final ThreadPoolExecutor p =
105 >            new ThreadPoolExecutor(2, 2,
106 >                                   LONG_DELAY_MS, MILLISECONDS,
107 >                                   new ArrayBlockingQueue<Runnable>(10));
108 >        try (PoolCleaner cleaner = cleaner(p)) {
109 >            final CountDownLatch threadStarted = new CountDownLatch(1);
110 >            final CountDownLatch done = new CountDownLatch(1);
111 >            assertEquals(0, p.getActiveCount());
112 >            p.execute(new CheckedRunnable() {
113 >                public void realRun() throws InterruptedException {
114 >                    threadStarted.countDown();
115 >                    assertEquals(1, p.getActiveCount());
116 >                    done.await();
117 >                }});
118 >            assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
119 >            assertEquals(1, p.getActiveCount());
120 >            done.countDown();
121 >        }
122      }
123  
48
124      /**
125 <     *  Test to verify that execute successfully executes a runnable
125 >     * prestartCoreThread starts a thread if under corePoolSize, else doesn't
126       */
127 <    public void testExecute(){
128 <        ThreadPoolExecutor one = new ThreadPoolExecutor(1, 1, 1, TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10));
129 <        try {
130 <            one.execute(new Runnable(){
131 <                    public void run(){
132 <                        try{
133 <                            Thread.sleep(SHORT_DELAY_MS);
134 <                        }catch(InterruptedException e){
135 <                            fail("unexpected exception");
136 <                        }
137 <                    }
138 <                });
139 <            Thread.sleep(SHORT_DELAY_MS * 2);
140 <        }catch(InterruptedException e){
141 <            fail("unexpected exception");
142 <        } finally {
143 <            one.shutdown();
127 >    public void testPrestartCoreThread() {
128 >        final ThreadPoolExecutor p =
129 >            new ThreadPoolExecutor(2, 6,
130 >                                   LONG_DELAY_MS, MILLISECONDS,
131 >                                   new ArrayBlockingQueue<Runnable>(10));
132 >        try (PoolCleaner cleaner = cleaner(p)) {
133 >            assertEquals(0, p.getPoolSize());
134 >            assertTrue(p.prestartCoreThread());
135 >            assertEquals(1, p.getPoolSize());
136 >            assertTrue(p.prestartCoreThread());
137 >            assertEquals(2, p.getPoolSize());
138 >            assertFalse(p.prestartCoreThread());
139 >            assertEquals(2, p.getPoolSize());
140 >            p.setCorePoolSize(4);
141 >            assertTrue(p.prestartCoreThread());
142 >            assertEquals(3, p.getPoolSize());
143 >            assertTrue(p.prestartCoreThread());
144 >            assertEquals(4, p.getPoolSize());
145 >            assertFalse(p.prestartCoreThread());
146 >            assertEquals(4, p.getPoolSize());
147          }
148      }
149  
150      /**
151 <     *  Test to verify getActiveCount gives correct values
151 >     * prestartAllCoreThreads starts all corePoolSize threads
152       */
153 <    public void testGetActiveCount(){
154 <        ThreadPoolExecutor two = new ThreadPoolExecutor(2, 2, 1, TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10));
155 <        try {
156 <            assertEquals(0, two.getActiveCount());
157 <            two.execute(newRunnable());
158 <            try{Thread.sleep(10);}catch(Exception e){}
159 <            assertEquals(1, two.getActiveCount());
160 <        } finally {
161 <            two.shutdown();
153 >    public void testPrestartAllCoreThreads() {
154 >        final ThreadPoolExecutor p =
155 >            new ThreadPoolExecutor(2, 6,
156 >                                   LONG_DELAY_MS, MILLISECONDS,
157 >                                   new ArrayBlockingQueue<Runnable>(10));
158 >        try (PoolCleaner cleaner = cleaner(p)) {
159 >            assertEquals(0, p.getPoolSize());
160 >            p.prestartAllCoreThreads();
161 >            assertEquals(2, p.getPoolSize());
162 >            p.prestartAllCoreThreads();
163 >            assertEquals(2, p.getPoolSize());
164 >            p.setCorePoolSize(4);
165 >            p.prestartAllCoreThreads();
166 >            assertEquals(4, p.getPoolSize());
167 >            p.prestartAllCoreThreads();
168 >            assertEquals(4, p.getPoolSize());
169 >        }
170 >    }
171 >
172 >    /**
173 >     * getCompletedTaskCount increases, but doesn't overestimate,
174 >     * when tasks complete
175 >     */
176 >    public void testGetCompletedTaskCount() throws InterruptedException {
177 >        final ThreadPoolExecutor p =
178 >            new ThreadPoolExecutor(2, 2,
179 >                                   LONG_DELAY_MS, MILLISECONDS,
180 >                                   new ArrayBlockingQueue<Runnable>(10));
181 >        try (PoolCleaner cleaner = cleaner(p)) {
182 >            final CountDownLatch threadStarted = new CountDownLatch(1);
183 >            final CountDownLatch threadProceed = new CountDownLatch(1);
184 >            final CountDownLatch threadDone = new CountDownLatch(1);
185 >            assertEquals(0, p.getCompletedTaskCount());
186 >            p.execute(new CheckedRunnable() {
187 >                public void realRun() throws InterruptedException {
188 >                    threadStarted.countDown();
189 >                    assertEquals(0, p.getCompletedTaskCount());
190 >                    threadProceed.await();
191 >                    threadDone.countDown();
192 >                }});
193 >            await(threadStarted);
194 >            assertEquals(0, p.getCompletedTaskCount());
195 >            threadProceed.countDown();
196 >            threadDone.await();
197 >            long startTime = System.nanoTime();
198 >            while (p.getCompletedTaskCount() != 1) {
199 >                if (millisElapsedSince(startTime) > LONG_DELAY_MS)
200 >                    fail("timed out");
201 >                Thread.yield();
202 >            }
203 >        }
204 >    }
205 >
206 >    /**
207 >     * getCorePoolSize returns size given in constructor if not otherwise set
208 >     */
209 >    public void testGetCorePoolSize() {
210 >        final ThreadPoolExecutor p =
211 >            new ThreadPoolExecutor(1, 1,
212 >                                   LONG_DELAY_MS, MILLISECONDS,
213 >                                   new ArrayBlockingQueue<Runnable>(10));
214 >        try (PoolCleaner cleaner = cleaner(p)) {
215 >            assertEquals(1, p.getCorePoolSize());
216 >        }
217 >    }
218 >
219 >    /**
220 >     * getKeepAliveTime returns value given in constructor if not otherwise set
221 >     */
222 >    public void testGetKeepAliveTime() {
223 >        final ThreadPoolExecutor p =
224 >            new ThreadPoolExecutor(2, 2,
225 >                                   1000, MILLISECONDS,
226 >                                   new ArrayBlockingQueue<Runnable>(10));
227 >        try (PoolCleaner cleaner = cleaner(p)) {
228 >            assertEquals(1, p.getKeepAliveTime(SECONDS));
229 >        }
230 >    }
231 >
232 >    /**
233 >     * getThreadFactory returns factory in constructor if not set
234 >     */
235 >    public void testGetThreadFactory() {
236 >        ThreadFactory threadFactory = new SimpleThreadFactory();
237 >        final ThreadPoolExecutor p =
238 >            new ThreadPoolExecutor(1, 2,
239 >                                   LONG_DELAY_MS, MILLISECONDS,
240 >                                   new ArrayBlockingQueue<Runnable>(10),
241 >                                   threadFactory,
242 >                                   new NoOpREHandler());
243 >        try (PoolCleaner cleaner = cleaner(p)) {
244 >            assertSame(threadFactory, p.getThreadFactory());
245 >        }
246 >    }
247 >
248 >    /**
249 >     * setThreadFactory sets the thread factory returned by getThreadFactory
250 >     */
251 >    public void testSetThreadFactory() {
252 >        final ThreadPoolExecutor p =
253 >            new ThreadPoolExecutor(1, 2,
254 >                                   LONG_DELAY_MS, MILLISECONDS,
255 >                                   new ArrayBlockingQueue<Runnable>(10));
256 >        try (PoolCleaner cleaner = cleaner(p)) {
257 >            ThreadFactory threadFactory = new SimpleThreadFactory();
258 >            p.setThreadFactory(threadFactory);
259 >            assertSame(threadFactory, p.getThreadFactory());
260 >        }
261 >    }
262 >
263 >    /**
264 >     * setThreadFactory(null) throws NPE
265 >     */
266 >    public void testSetThreadFactoryNull() {
267 >        final ThreadPoolExecutor p =
268 >            new ThreadPoolExecutor(1, 2,
269 >                                   LONG_DELAY_MS, MILLISECONDS,
270 >                                   new ArrayBlockingQueue<Runnable>(10));
271 >        try (PoolCleaner cleaner = cleaner(p)) {
272 >            try {
273 >                p.setThreadFactory(null);
274 >                shouldThrow();
275 >            } catch (NullPointerException success) {}
276 >        }
277 >    }
278 >
279 >    /**
280 >     * getRejectedExecutionHandler returns handler in constructor if not set
281 >     */
282 >    public void testGetRejectedExecutionHandler() {
283 >        final RejectedExecutionHandler handler = new NoOpREHandler();
284 >        final ThreadPoolExecutor p =
285 >            new ThreadPoolExecutor(1, 2,
286 >                                   LONG_DELAY_MS, MILLISECONDS,
287 >                                   new ArrayBlockingQueue<Runnable>(10),
288 >                                   handler);
289 >        try (PoolCleaner cleaner = cleaner(p)) {
290 >            assertSame(handler, p.getRejectedExecutionHandler());
291 >        }
292 >    }
293 >
294 >    /**
295 >     * setRejectedExecutionHandler sets the handler returned by
296 >     * getRejectedExecutionHandler
297 >     */
298 >    public void testSetRejectedExecutionHandler() {
299 >        final ThreadPoolExecutor p =
300 >            new ThreadPoolExecutor(1, 2,
301 >                                   LONG_DELAY_MS, MILLISECONDS,
302 >                                   new ArrayBlockingQueue<Runnable>(10));
303 >        try (PoolCleaner cleaner = cleaner(p)) {
304 >            RejectedExecutionHandler handler = new NoOpREHandler();
305 >            p.setRejectedExecutionHandler(handler);
306 >            assertSame(handler, p.getRejectedExecutionHandler());
307 >        }
308 >    }
309 >
310 >    /**
311 >     * setRejectedExecutionHandler(null) throws NPE
312 >     */
313 >    public void testSetRejectedExecutionHandlerNull() {
314 >        final ThreadPoolExecutor p =
315 >            new ThreadPoolExecutor(1, 2,
316 >                                   LONG_DELAY_MS, MILLISECONDS,
317 >                                   new ArrayBlockingQueue<Runnable>(10));
318 >        try (PoolCleaner cleaner = cleaner(p)) {
319 >            try {
320 >                p.setRejectedExecutionHandler(null);
321 >                shouldThrow();
322 >            } catch (NullPointerException success) {}
323 >        }
324 >    }
325 >
326 >    /**
327 >     * getLargestPoolSize increases, but doesn't overestimate, when
328 >     * multiple threads active
329 >     */
330 >    public void testGetLargestPoolSize() throws InterruptedException {
331 >        final int THREADS = 3;
332 >        final ThreadPoolExecutor p =
333 >            new ThreadPoolExecutor(THREADS, THREADS,
334 >                                   LONG_DELAY_MS, MILLISECONDS,
335 >                                   new ArrayBlockingQueue<Runnable>(10));
336 >        try (PoolCleaner cleaner = cleaner(p)) {
337 >            final CountDownLatch threadsStarted = new CountDownLatch(THREADS);
338 >            final CountDownLatch done = new CountDownLatch(1);
339 >            assertEquals(0, p.getLargestPoolSize());
340 >            for (int i = 0; i < THREADS; i++)
341 >                p.execute(new CheckedRunnable() {
342 >                    public void realRun() throws InterruptedException {
343 >                        threadsStarted.countDown();
344 >                        done.await();
345 >                        assertEquals(THREADS, p.getLargestPoolSize());
346 >                    }});
347 >            assertTrue(threadsStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
348 >            assertEquals(THREADS, p.getLargestPoolSize());
349 >            done.countDown();   // release pool
350 >        }
351 >        assertEquals(THREADS, p.getLargestPoolSize());
352 >    }
353 >
354 >    /**
355 >     * getMaximumPoolSize returns value given in constructor if not
356 >     * otherwise set
357 >     */
358 >    public void testGetMaximumPoolSize() {
359 >        final ThreadPoolExecutor p =
360 >            new ThreadPoolExecutor(2, 3,
361 >                                   LONG_DELAY_MS, MILLISECONDS,
362 >                                   new ArrayBlockingQueue<Runnable>(10));
363 >        try (PoolCleaner cleaner = cleaner(p)) {
364 >            assertEquals(3, p.getMaximumPoolSize());
365 >            p.setMaximumPoolSize(5);
366 >            assertEquals(5, p.getMaximumPoolSize());
367 >            p.setMaximumPoolSize(4);
368 >            assertEquals(4, p.getMaximumPoolSize());
369 >        }
370 >    }
371 >
372 >    /**
373 >     * getPoolSize increases, but doesn't overestimate, when threads
374 >     * become active
375 >     */
376 >    public void testGetPoolSize() throws InterruptedException {
377 >        final ThreadPoolExecutor p =
378 >            new ThreadPoolExecutor(1, 1,
379 >                                   LONG_DELAY_MS, MILLISECONDS,
380 >                                   new ArrayBlockingQueue<Runnable>(10));
381 >        try (PoolCleaner cleaner = cleaner(p)) {
382 >            final CountDownLatch threadStarted = new CountDownLatch(1);
383 >            final CountDownLatch done = new CountDownLatch(1);
384 >            assertEquals(0, p.getPoolSize());
385 >            p.execute(new CheckedRunnable() {
386 >                public void realRun() throws InterruptedException {
387 >                    threadStarted.countDown();
388 >                    assertEquals(1, p.getPoolSize());
389 >                    done.await();
390 >                }});
391 >            assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
392 >            assertEquals(1, p.getPoolSize());
393 >            done.countDown();   // release pool
394 >        }
395 >    }
396 >
397 >    /**
398 >     * getTaskCount increases, but doesn't overestimate, when tasks submitted
399 >     */
400 >    public void testGetTaskCount() throws InterruptedException {
401 >        final ThreadPoolExecutor p =
402 >            new ThreadPoolExecutor(1, 1,
403 >                                   LONG_DELAY_MS, MILLISECONDS,
404 >                                   new ArrayBlockingQueue<Runnable>(10));
405 >        try (PoolCleaner cleaner = cleaner(p)) {
406 >            final CountDownLatch threadStarted = new CountDownLatch(1);
407 >            final CountDownLatch done = new CountDownLatch(1);
408 >            assertEquals(0, p.getTaskCount());
409 >            p.execute(new CheckedRunnable() {
410 >                public void realRun() throws InterruptedException {
411 >                    threadStarted.countDown();
412 >                    assertEquals(1, p.getTaskCount());
413 >                    done.await();
414 >                }});
415 >            assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
416 >            assertEquals(1, p.getTaskCount());
417 >            done.countDown();
418 >        }
419 >    }
420 >
421 >    /**
422 >     * isShutdown is false before shutdown, true after
423 >     */
424 >    public void testIsShutdown() {
425 >        final ThreadPoolExecutor p =
426 >            new ThreadPoolExecutor(1, 1,
427 >                                   LONG_DELAY_MS, MILLISECONDS,
428 >                                   new ArrayBlockingQueue<Runnable>(10));
429 >        try (PoolCleaner cleaner = cleaner(p)) {
430 >            assertFalse(p.isShutdown());
431 >            try { p.shutdown(); } catch (SecurityException ok) { return; }
432 >            assertTrue(p.isShutdown());
433 >        }
434 >    }
435 >
436 >    /**
437 >     * awaitTermination on a non-shutdown pool times out
438 >     */
439 >    public void testAwaitTermination_timesOut() throws InterruptedException {
440 >        final ThreadPoolExecutor p =
441 >            new ThreadPoolExecutor(1, 1,
442 >                                   LONG_DELAY_MS, MILLISECONDS,
443 >                                   new ArrayBlockingQueue<Runnable>(10));
444 >        try (PoolCleaner cleaner = cleaner(p)) {
445 >            assertFalse(p.isTerminated());
446 >            assertFalse(p.awaitTermination(Long.MIN_VALUE, NANOSECONDS));
447 >            assertFalse(p.awaitTermination(Long.MIN_VALUE, MILLISECONDS));
448 >            assertFalse(p.awaitTermination(-1L, NANOSECONDS));
449 >            assertFalse(p.awaitTermination(-1L, MILLISECONDS));
450 >            assertFalse(p.awaitTermination(0L, NANOSECONDS));
451 >            assertFalse(p.awaitTermination(0L, MILLISECONDS));
452 >            long timeoutNanos = 999999L;
453 >            long startTime = System.nanoTime();
454 >            assertFalse(p.awaitTermination(timeoutNanos, NANOSECONDS));
455 >            assertTrue(System.nanoTime() - startTime >= timeoutNanos);
456 >            assertFalse(p.isTerminated());
457 >            startTime = System.nanoTime();
458 >            long timeoutMillis = timeoutMillis();
459 >            assertFalse(p.awaitTermination(timeoutMillis, MILLISECONDS));
460 >            assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
461 >            assertFalse(p.isTerminated());
462 >            try { p.shutdown(); } catch (SecurityException ok) { return; }
463 >            assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
464 >            assertTrue(p.isTerminated());
465 >        }
466 >    }
467 >
468 >    /**
469 >     * isTerminated is false before termination, true after
470 >     */
471 >    public void testIsTerminated() throws InterruptedException {
472 >        final ThreadPoolExecutor p =
473 >            new ThreadPoolExecutor(1, 1,
474 >                                   LONG_DELAY_MS, MILLISECONDS,
475 >                                   new ArrayBlockingQueue<Runnable>(10));
476 >        try (PoolCleaner cleaner = cleaner(p)) {
477 >            final CountDownLatch threadStarted = new CountDownLatch(1);
478 >            final CountDownLatch done = new CountDownLatch(1);
479 >            assertFalse(p.isTerminating());
480 >            p.execute(new CheckedRunnable() {
481 >                public void realRun() throws InterruptedException {
482 >                    assertFalse(p.isTerminating());
483 >                    threadStarted.countDown();
484 >                    done.await();
485 >                }});
486 >            assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
487 >            assertFalse(p.isTerminating());
488 >            done.countDown();
489 >            try { p.shutdown(); } catch (SecurityException ok) { return; }
490 >            assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
491 >            assertTrue(p.isTerminated());
492 >            assertFalse(p.isTerminating());
493 >        }
494 >    }
495 >
496 >    /**
497 >     * isTerminating is not true when running or when terminated
498 >     */
499 >    public void testIsTerminating() throws InterruptedException {
500 >        final ThreadPoolExecutor p =
501 >            new ThreadPoolExecutor(1, 1,
502 >                                   LONG_DELAY_MS, MILLISECONDS,
503 >                                   new ArrayBlockingQueue<Runnable>(10));
504 >        try (PoolCleaner cleaner = cleaner(p)) {
505 >            final CountDownLatch threadStarted = new CountDownLatch(1);
506 >            final CountDownLatch done = new CountDownLatch(1);
507 >            assertFalse(p.isTerminating());
508 >            p.execute(new CheckedRunnable() {
509 >                public void realRun() throws InterruptedException {
510 >                    assertFalse(p.isTerminating());
511 >                    threadStarted.countDown();
512 >                    done.await();
513 >                }});
514 >            assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
515 >            assertFalse(p.isTerminating());
516 >            done.countDown();
517 >            try { p.shutdown(); } catch (SecurityException ok) { return; }
518 >            assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
519 >            assertTrue(p.isTerminated());
520 >            assertFalse(p.isTerminating());
521 >        }
522 >    }
523 >
524 >    /**
525 >     * getQueue returns the work queue, which contains queued tasks
526 >     */
527 >    public void testGetQueue() throws InterruptedException {
528 >        final BlockingQueue<Runnable> q = new ArrayBlockingQueue<Runnable>(10);
529 >        final ThreadPoolExecutor p =
530 >            new ThreadPoolExecutor(1, 1,
531 >                                   LONG_DELAY_MS, MILLISECONDS,
532 >                                   q);
533 >        try (PoolCleaner cleaner = cleaner(p)) {
534 >            final CountDownLatch threadStarted = new CountDownLatch(1);
535 >            final CountDownLatch done = new CountDownLatch(1);
536 >            FutureTask[] tasks = new FutureTask[5];
537 >            for (int i = 0; i < tasks.length; i++) {
538 >                Callable task = new CheckedCallable<Boolean>() {
539 >                    public Boolean realCall() throws InterruptedException {
540 >                        threadStarted.countDown();
541 >                        assertSame(q, p.getQueue());
542 >                        done.await();
543 >                        return Boolean.TRUE;
544 >                    }};
545 >                tasks[i] = new FutureTask(task);
546 >                p.execute(tasks[i]);
547 >            }
548 >            assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
549 >            assertSame(q, p.getQueue());
550 >            assertFalse(q.contains(tasks[0]));
551 >            assertTrue(q.contains(tasks[tasks.length - 1]));
552 >            assertEquals(tasks.length - 1, q.size());
553 >            done.countDown();
554 >        }
555 >    }
556 >
557 >    /**
558 >     * remove(task) removes queued task, and fails to remove active task
559 >     */
560 >    public void testRemove() throws InterruptedException {
561 >        BlockingQueue<Runnable> q = new ArrayBlockingQueue<Runnable>(10);
562 >        final ThreadPoolExecutor p =
563 >            new ThreadPoolExecutor(1, 1,
564 >                                   LONG_DELAY_MS, MILLISECONDS,
565 >                                   q);
566 >        try (PoolCleaner cleaner = cleaner(p)) {
567 >            Runnable[] tasks = new Runnable[6];
568 >            final CountDownLatch threadStarted = new CountDownLatch(1);
569 >            final CountDownLatch done = new CountDownLatch(1);
570 >            for (int i = 0; i < tasks.length; i++) {
571 >                tasks[i] = new CheckedRunnable() {
572 >                    public void realRun() throws InterruptedException {
573 >                        threadStarted.countDown();
574 >                        done.await();
575 >                    }};
576 >                p.execute(tasks[i]);
577 >            }
578 >            assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
579 >            assertFalse(p.remove(tasks[0]));
580 >            assertTrue(q.contains(tasks[4]));
581 >            assertTrue(q.contains(tasks[3]));
582 >            assertTrue(p.remove(tasks[4]));
583 >            assertFalse(p.remove(tasks[4]));
584 >            assertFalse(q.contains(tasks[4]));
585 >            assertTrue(q.contains(tasks[3]));
586 >            assertTrue(p.remove(tasks[3]));
587 >            assertFalse(q.contains(tasks[3]));
588 >            done.countDown();
589          }
590      }
591 <    
591 >
592      /**
593 <     *  Test to verify getCompleteTaskCount gives correct values
593 >     * purge removes cancelled tasks from the queue
594       */
595 <    public void testGetCompletedTaskCount(){
596 <        ThreadPoolExecutor two = new ThreadPoolExecutor(2, 2, 1, TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10));
595 >    public void testPurge() throws InterruptedException {
596 >        final CountDownLatch threadStarted = new CountDownLatch(1);
597 >        final CountDownLatch done = new CountDownLatch(1);
598 >        final BlockingQueue<Runnable> q = new ArrayBlockingQueue<Runnable>(10);
599 >        final ThreadPoolExecutor p =
600 >            new ThreadPoolExecutor(1, 1,
601 >                                   LONG_DELAY_MS, MILLISECONDS,
602 >                                   q);
603 >        try (PoolCleaner cleaner = cleaner(p)) {
604 >            FutureTask[] tasks = new FutureTask[5];
605 >            for (int i = 0; i < tasks.length; i++) {
606 >                Callable task = new CheckedCallable<Boolean>() {
607 >                    public Boolean realCall() throws InterruptedException {
608 >                        threadStarted.countDown();
609 >                        done.await();
610 >                        return Boolean.TRUE;
611 >                    }};
612 >                tasks[i] = new FutureTask(task);
613 >                p.execute(tasks[i]);
614 >            }
615 >            assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
616 >            assertEquals(tasks.length, p.getTaskCount());
617 >            assertEquals(tasks.length - 1, q.size());
618 >            assertEquals(1L, p.getActiveCount());
619 >            assertEquals(0L, p.getCompletedTaskCount());
620 >            tasks[4].cancel(true);
621 >            tasks[3].cancel(false);
622 >            p.purge();
623 >            assertEquals(tasks.length - 3, q.size());
624 >            assertEquals(tasks.length - 2, p.getTaskCount());
625 >            p.purge();         // Nothing to do
626 >            assertEquals(tasks.length - 3, q.size());
627 >            assertEquals(tasks.length - 2, p.getTaskCount());
628 >            done.countDown();
629 >        }
630 >    }
631 >
632 >    /**
633 >     * shutdownNow returns a list containing tasks that were not run,
634 >     * and those tasks are drained from the queue
635 >     */
636 >    public void testShutdownNow() throws InterruptedException {
637 >        final int poolSize = 2;
638 >        final int count = 5;
639 >        final AtomicInteger ran = new AtomicInteger(0);
640 >        final ThreadPoolExecutor p =
641 >            new ThreadPoolExecutor(poolSize, poolSize,
642 >                                   LONG_DELAY_MS, MILLISECONDS,
643 >                                   new ArrayBlockingQueue<Runnable>(10));
644 >        CountDownLatch threadsStarted = new CountDownLatch(poolSize);
645 >        Runnable waiter = new CheckedRunnable() { public void realRun() {
646 >            threadsStarted.countDown();
647 >            try {
648 >                MILLISECONDS.sleep(2 * LONG_DELAY_MS);
649 >            } catch (InterruptedException success) {}
650 >            ran.getAndIncrement();
651 >        }};
652 >        for (int i = 0; i < count; i++)
653 >            p.execute(waiter);
654 >        assertTrue(threadsStarted.await(LONG_DELAY_MS, MILLISECONDS));
655 >        assertEquals(poolSize, p.getActiveCount());
656 >        assertEquals(0, p.getCompletedTaskCount());
657 >        final List<Runnable> queuedTasks;
658          try {
659 <            assertEquals(0, two.getCompletedTaskCount());
660 <            two.execute(newRunnable());
661 <            try{Thread.sleep(2000);}catch(Exception e){}
662 <            assertEquals(1, two.getCompletedTaskCount());
663 <        } finally {
664 <            two.shutdown();
659 >            queuedTasks = p.shutdownNow();
660 >        } catch (SecurityException ok) {
661 >            return; // Allowed in case test doesn't have privs
662 >        }
663 >        assertTrue(p.isShutdown());
664 >        assertTrue(p.getQueue().isEmpty());
665 >        assertEquals(count - poolSize, queuedTasks.size());
666 >        assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
667 >        assertTrue(p.isTerminated());
668 >        assertEquals(poolSize, ran.get());
669 >        assertEquals(poolSize, p.getCompletedTaskCount());
670 >    }
671 >
672 >    // Exception Tests
673 >
674 >    /**
675 >     * Constructor throws if corePoolSize argument is less than zero
676 >     */
677 >    public void testConstructor1() {
678 >        try {
679 >            new ThreadPoolExecutor(-1, 1, 1L, SECONDS,
680 >                                   new ArrayBlockingQueue<Runnable>(10));
681 >            shouldThrow();
682 >        } catch (IllegalArgumentException success) {}
683 >    }
684 >
685 >    /**
686 >     * Constructor throws if maximumPoolSize is less than zero
687 >     */
688 >    public void testConstructor2() {
689 >        try {
690 >            new ThreadPoolExecutor(1, -1, 1L, SECONDS,
691 >                                   new ArrayBlockingQueue<Runnable>(10));
692 >            shouldThrow();
693 >        } catch (IllegalArgumentException success) {}
694 >    }
695 >
696 >    /**
697 >     * Constructor throws if maximumPoolSize is equal to zero
698 >     */
699 >    public void testConstructor3() {
700 >        try {
701 >            new ThreadPoolExecutor(1, 0, 1L, SECONDS,
702 >                                   new ArrayBlockingQueue<Runnable>(10));
703 >            shouldThrow();
704 >        } catch (IllegalArgumentException success) {}
705 >    }
706 >
707 >    /**
708 >     * Constructor throws if keepAliveTime is less than zero
709 >     */
710 >    public void testConstructor4() {
711 >        try {
712 >            new ThreadPoolExecutor(1, 2, -1L, SECONDS,
713 >                                   new ArrayBlockingQueue<Runnable>(10));
714 >            shouldThrow();
715 >        } catch (IllegalArgumentException success) {}
716 >    }
717 >
718 >    /**
719 >     * Constructor throws if corePoolSize is greater than the maximumPoolSize
720 >     */
721 >    public void testConstructor5() {
722 >        try {
723 >            new ThreadPoolExecutor(2, 1, 1L, SECONDS,
724 >                                   new ArrayBlockingQueue<Runnable>(10));
725 >            shouldThrow();
726 >        } catch (IllegalArgumentException success) {}
727 >    }
728 >
729 >    /**
730 >     * Constructor throws if workQueue is set to null
731 >     */
732 >    public void testConstructorNullPointerException() {
733 >        try {
734 >            new ThreadPoolExecutor(1, 2, 1L, SECONDS,
735 >                                   (BlockingQueue) null);
736 >            shouldThrow();
737 >        } catch (NullPointerException success) {}
738 >    }
739 >
740 >    /**
741 >     * Constructor throws if corePoolSize argument is less than zero
742 >     */
743 >    public void testConstructor6() {
744 >        try {
745 >            new ThreadPoolExecutor(-1, 1, 1L, SECONDS,
746 >                                   new ArrayBlockingQueue<Runnable>(10),
747 >                                   new SimpleThreadFactory());
748 >            shouldThrow();
749 >        } catch (IllegalArgumentException success) {}
750 >    }
751 >
752 >    /**
753 >     * Constructor throws if maximumPoolSize is less than zero
754 >     */
755 >    public void testConstructor7() {
756 >        try {
757 >            new ThreadPoolExecutor(1, -1, 1L, SECONDS,
758 >                                   new ArrayBlockingQueue<Runnable>(10),
759 >                                   new SimpleThreadFactory());
760 >            shouldThrow();
761 >        } catch (IllegalArgumentException success) {}
762 >    }
763 >
764 >    /**
765 >     * Constructor throws if maximumPoolSize is equal to zero
766 >     */
767 >    public void testConstructor8() {
768 >        try {
769 >            new ThreadPoolExecutor(1, 0, 1L, SECONDS,
770 >                                   new ArrayBlockingQueue<Runnable>(10),
771 >                                   new SimpleThreadFactory());
772 >            shouldThrow();
773 >        } catch (IllegalArgumentException success) {}
774 >    }
775 >
776 >    /**
777 >     * Constructor throws if keepAliveTime is less than zero
778 >     */
779 >    public void testConstructor9() {
780 >        try {
781 >            new ThreadPoolExecutor(1, 2, -1L, SECONDS,
782 >                                   new ArrayBlockingQueue<Runnable>(10),
783 >                                   new SimpleThreadFactory());
784 >            shouldThrow();
785 >        } catch (IllegalArgumentException success) {}
786 >    }
787 >
788 >    /**
789 >     * Constructor throws if corePoolSize is greater than the maximumPoolSize
790 >     */
791 >    public void testConstructor10() {
792 >        try {
793 >            new ThreadPoolExecutor(2, 1, 1L, SECONDS,
794 >                                   new ArrayBlockingQueue<Runnable>(10),
795 >                                   new SimpleThreadFactory());
796 >            shouldThrow();
797 >        } catch (IllegalArgumentException success) {}
798 >    }
799 >
800 >    /**
801 >     * Constructor throws if workQueue is set to null
802 >     */
803 >    public void testConstructorNullPointerException2() {
804 >        try {
805 >            new ThreadPoolExecutor(1, 2, 1L, SECONDS,
806 >                                   (BlockingQueue) null,
807 >                                   new SimpleThreadFactory());
808 >            shouldThrow();
809 >        } catch (NullPointerException success) {}
810 >    }
811 >
812 >    /**
813 >     * Constructor throws if threadFactory is set to null
814 >     */
815 >    public void testConstructorNullPointerException3() {
816 >        try {
817 >            new ThreadPoolExecutor(1, 2, 1L, SECONDS,
818 >                                   new ArrayBlockingQueue<Runnable>(10),
819 >                                   (ThreadFactory) null);
820 >            shouldThrow();
821 >        } catch (NullPointerException success) {}
822 >    }
823 >
824 >    /**
825 >     * Constructor throws if corePoolSize argument is less than zero
826 >     */
827 >    public void testConstructor11() {
828 >        try {
829 >            new ThreadPoolExecutor(-1, 1, 1L, SECONDS,
830 >                                   new ArrayBlockingQueue<Runnable>(10),
831 >                                   new NoOpREHandler());
832 >            shouldThrow();
833 >        } catch (IllegalArgumentException success) {}
834 >    }
835 >
836 >    /**
837 >     * Constructor throws if maximumPoolSize is less than zero
838 >     */
839 >    public void testConstructor12() {
840 >        try {
841 >            new ThreadPoolExecutor(1, -1, 1L, SECONDS,
842 >                                   new ArrayBlockingQueue<Runnable>(10),
843 >                                   new NoOpREHandler());
844 >            shouldThrow();
845 >        } catch (IllegalArgumentException success) {}
846 >    }
847 >
848 >    /**
849 >     * Constructor throws if maximumPoolSize is equal to zero
850 >     */
851 >    public void testConstructor13() {
852 >        try {
853 >            new ThreadPoolExecutor(1, 0, 1L, SECONDS,
854 >                                   new ArrayBlockingQueue<Runnable>(10),
855 >                                   new NoOpREHandler());
856 >            shouldThrow();
857 >        } catch (IllegalArgumentException success) {}
858 >    }
859 >
860 >    /**
861 >     * Constructor throws if keepAliveTime is less than zero
862 >     */
863 >    public void testConstructor14() {
864 >        try {
865 >            new ThreadPoolExecutor(1, 2, -1L, SECONDS,
866 >                                   new ArrayBlockingQueue<Runnable>(10),
867 >                                   new NoOpREHandler());
868 >            shouldThrow();
869 >        } catch (IllegalArgumentException success) {}
870 >    }
871 >
872 >    /**
873 >     * Constructor throws if corePoolSize is greater than the maximumPoolSize
874 >     */
875 >    public void testConstructor15() {
876 >        try {
877 >            new ThreadPoolExecutor(2, 1, 1L, SECONDS,
878 >                                   new ArrayBlockingQueue<Runnable>(10),
879 >                                   new NoOpREHandler());
880 >            shouldThrow();
881 >        } catch (IllegalArgumentException success) {}
882 >    }
883 >
884 >    /**
885 >     * Constructor throws if workQueue is set to null
886 >     */
887 >    public void testConstructorNullPointerException4() {
888 >        try {
889 >            new ThreadPoolExecutor(1, 2, 1L, SECONDS,
890 >                                   (BlockingQueue) null,
891 >                                   new NoOpREHandler());
892 >            shouldThrow();
893 >        } catch (NullPointerException success) {}
894 >    }
895 >
896 >    /**
897 >     * Constructor throws if handler is set to null
898 >     */
899 >    public void testConstructorNullPointerException5() {
900 >        try {
901 >            new ThreadPoolExecutor(1, 2, 1L, SECONDS,
902 >                                   new ArrayBlockingQueue<Runnable>(10),
903 >                                   (RejectedExecutionHandler) null);
904 >            shouldThrow();
905 >        } catch (NullPointerException success) {}
906 >    }
907 >
908 >    /**
909 >     * Constructor throws if corePoolSize argument is less than zero
910 >     */
911 >    public void testConstructor16() {
912 >        try {
913 >            new ThreadPoolExecutor(-1, 1, 1L, SECONDS,
914 >                                   new ArrayBlockingQueue<Runnable>(10),
915 >                                   new SimpleThreadFactory(),
916 >                                   new NoOpREHandler());
917 >            shouldThrow();
918 >        } catch (IllegalArgumentException success) {}
919 >    }
920 >
921 >    /**
922 >     * Constructor throws if maximumPoolSize is less than zero
923 >     */
924 >    public void testConstructor17() {
925 >        try {
926 >            new ThreadPoolExecutor(1, -1, 1L, SECONDS,
927 >                                   new ArrayBlockingQueue<Runnable>(10),
928 >                                   new SimpleThreadFactory(),
929 >                                   new NoOpREHandler());
930 >            shouldThrow();
931 >        } catch (IllegalArgumentException success) {}
932 >    }
933 >
934 >    /**
935 >     * Constructor throws if maximumPoolSize is equal to zero
936 >     */
937 >    public void testConstructor18() {
938 >        try {
939 >            new ThreadPoolExecutor(1, 0, 1L, SECONDS,
940 >                                   new ArrayBlockingQueue<Runnable>(10),
941 >                                   new SimpleThreadFactory(),
942 >                                   new NoOpREHandler());
943 >            shouldThrow();
944 >        } catch (IllegalArgumentException success) {}
945 >    }
946 >
947 >    /**
948 >     * Constructor throws if keepAliveTime is less than zero
949 >     */
950 >    public void testConstructor19() {
951 >        try {
952 >            new ThreadPoolExecutor(1, 2, -1L, SECONDS,
953 >                                   new ArrayBlockingQueue<Runnable>(10),
954 >                                   new SimpleThreadFactory(),
955 >                                   new NoOpREHandler());
956 >            shouldThrow();
957 >        } catch (IllegalArgumentException success) {}
958 >    }
959 >
960 >    /**
961 >     * Constructor throws if corePoolSize is greater than the maximumPoolSize
962 >     */
963 >    public void testConstructor20() {
964 >        try {
965 >            new ThreadPoolExecutor(2, 1, 1L, SECONDS,
966 >                                   new ArrayBlockingQueue<Runnable>(10),
967 >                                   new SimpleThreadFactory(),
968 >                                   new NoOpREHandler());
969 >            shouldThrow();
970 >        } catch (IllegalArgumentException success) {}
971 >    }
972 >
973 >    /**
974 >     * Constructor throws if workQueue is null
975 >     */
976 >    public void testConstructorNullPointerException6() {
977 >        try {
978 >            new ThreadPoolExecutor(1, 2, 1L, SECONDS,
979 >                                   (BlockingQueue) null,
980 >                                   new SimpleThreadFactory(),
981 >                                   new NoOpREHandler());
982 >            shouldThrow();
983 >        } catch (NullPointerException success) {}
984 >    }
985 >
986 >    /**
987 >     * Constructor throws if handler is null
988 >     */
989 >    public void testConstructorNullPointerException7() {
990 >        try {
991 >            new ThreadPoolExecutor(1, 2, 1L, SECONDS,
992 >                                   new ArrayBlockingQueue<Runnable>(10),
993 >                                   new SimpleThreadFactory(),
994 >                                   (RejectedExecutionHandler) null);
995 >            shouldThrow();
996 >        } catch (NullPointerException success) {}
997 >    }
998 >
999 >    /**
1000 >     * Constructor throws if ThreadFactory is null
1001 >     */
1002 >    public void testConstructorNullPointerException8() {
1003 >        try {
1004 >            new ThreadPoolExecutor(1, 2, 1L, SECONDS,
1005 >                                   new ArrayBlockingQueue<Runnable>(10),
1006 >                                   (ThreadFactory) null,
1007 >                                   new NoOpREHandler());
1008 >            shouldThrow();
1009 >        } catch (NullPointerException success) {}
1010 >    }
1011 >
1012 >    /**
1013 >     * get of submitted callable throws InterruptedException if interrupted
1014 >     */
1015 >    public void testInterruptedSubmit() throws InterruptedException {
1016 >        final ThreadPoolExecutor p =
1017 >            new ThreadPoolExecutor(1, 1,
1018 >                                   60, SECONDS,
1019 >                                   new ArrayBlockingQueue<Runnable>(10));
1020 >
1021 >        try (PoolCleaner cleaner = cleaner(p)) {
1022 >            final CountDownLatch threadStarted = new CountDownLatch(1);
1023 >            final CountDownLatch done = new CountDownLatch(1);
1024 >            Thread t = newStartedThread(new CheckedInterruptedRunnable() {
1025 >                public void realRun() throws Exception {
1026 >                    Callable task = new CheckedCallable<Boolean>() {
1027 >                        public Boolean realCall() throws InterruptedException {
1028 >                            threadStarted.countDown();
1029 >                            done.await();
1030 >                            return Boolean.TRUE;
1031 >                        }};
1032 >                    p.submit(task).get();
1033 >                }});
1034 >
1035 >            assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
1036 >            t.interrupt();
1037 >            awaitTermination(t, MEDIUM_DELAY_MS);
1038 >            done.countDown();
1039 >        }
1040 >    }
1041 >
1042 >    /**
1043 >     * execute throws RejectedExecutionException if saturated.
1044 >     */
1045 >    public void testSaturatedExecute() {
1046 >        final ThreadPoolExecutor p =
1047 >            new ThreadPoolExecutor(1, 1,
1048 >                                   LONG_DELAY_MS, MILLISECONDS,
1049 >                                   new ArrayBlockingQueue<Runnable>(1));
1050 >        try (PoolCleaner cleaner = cleaner(p)) {
1051 >            final CountDownLatch done = new CountDownLatch(1);
1052 >            Runnable task = new CheckedRunnable() {
1053 >                public void realRun() throws InterruptedException {
1054 >                    done.await();
1055 >                }};
1056 >            for (int i = 0; i < 2; ++i)
1057 >                p.execute(task);
1058 >            for (int i = 0; i < 2; ++i) {
1059 >                try {
1060 >                    p.execute(task);
1061 >                    shouldThrow();
1062 >                } catch (RejectedExecutionException success) {}
1063 >                assertTrue(p.getTaskCount() <= 2);
1064 >            }
1065 >            done.countDown();
1066          }
1067      }
1068 <    
1068 >
1069      /**
1070 <     *  Test to verify getCorePoolSize gives correct values
1070 >     * submit(runnable) throws RejectedExecutionException if saturated.
1071       */
1072 <    public void testGetCorePoolSize(){
1073 <        ThreadPoolExecutor one = new ThreadPoolExecutor(1, 1, 1, TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10));
1072 >    public void testSaturatedSubmitRunnable() {
1073 >        ThreadPoolExecutor p =
1074 >            new ThreadPoolExecutor(1, 1,
1075 >                                   LONG_DELAY_MS, MILLISECONDS,
1076 >                                   new ArrayBlockingQueue<Runnable>(1));
1077 >        final CountDownLatch done = new CountDownLatch(1);
1078          try {
1079 <            assertEquals(1, one.getCorePoolSize());
1079 >            Runnable task = new CheckedRunnable() {
1080 >                public void realRun() throws InterruptedException {
1081 >                    done.await();
1082 >                }};
1083 >            for (int i = 0; i < 2; ++i)
1084 >                p.submit(task);
1085 >            for (int i = 0; i < 2; ++i) {
1086 >                try {
1087 >                    p.execute(task);
1088 >                    shouldThrow();
1089 >                } catch (RejectedExecutionException success) {}
1090 >                assertTrue(p.getTaskCount() <= 2);
1091 >            }
1092          } finally {
1093 <            one.shutdown();
1093 >            done.countDown();
1094 >            joinPool(p);
1095          }
1096      }
1097 <    
1097 >
1098      /**
1099 <     *  Test to verify getKeepAliveTime gives correct values
1099 >     * submit(callable) throws RejectedExecutionException if saturated.
1100       */
1101 <    public void testGetKeepAliveTime(){
1102 <        ThreadPoolExecutor two = new ThreadPoolExecutor(2, 2, 1, TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10));
1101 >    public void testSaturatedSubmitCallable() {
1102 >        ThreadPoolExecutor p =
1103 >            new ThreadPoolExecutor(1, 1,
1104 >                                   LONG_DELAY_MS, MILLISECONDS,
1105 >                                   new ArrayBlockingQueue<Runnable>(1));
1106 >        final CountDownLatch done = new CountDownLatch(1);
1107          try {
1108 <            assertEquals(1, two.getKeepAliveTime(TimeUnit.SECONDS));
1108 >            Runnable task = new CheckedRunnable() {
1109 >                public void realRun() throws InterruptedException {
1110 >                    done.await();
1111 >                }};
1112 >            for (int i = 0; i < 2; ++i)
1113 >                p.submit(Executors.callable(task));
1114 >            for (int i = 0; i < 2; ++i) {
1115 >                try {
1116 >                    p.execute(task);
1117 >                    shouldThrow();
1118 >                } catch (RejectedExecutionException success) {}
1119 >                assertTrue(p.getTaskCount() <= 2);
1120 >            }
1121          } finally {
1122 <            two.shutdown();
1122 >            done.countDown();
1123 >            joinPool(p);
1124 >        }
1125 >    }
1126 >
1127 >    /**
1128 >     * executor using CallerRunsPolicy runs task if saturated.
1129 >     */
1130 >    public void testSaturatedExecute2() {
1131 >        final ThreadPoolExecutor p =
1132 >            new ThreadPoolExecutor(1, 1,
1133 >                                   LONG_DELAY_MS,
1134 >                                   MILLISECONDS,
1135 >                                   new ArrayBlockingQueue<Runnable>(1),
1136 >                                   new ThreadPoolExecutor.CallerRunsPolicy());
1137 >        try (PoolCleaner cleaner = cleaner(p)) {
1138 >            final CountDownLatch done = new CountDownLatch(1);
1139 >            Runnable blocker = new CheckedRunnable() {
1140 >                public void realRun() throws InterruptedException {
1141 >                    done.await();
1142 >                }};
1143 >            p.execute(blocker);
1144 >            TrackedNoOpRunnable[] tasks = new TrackedNoOpRunnable[5];
1145 >            for (int i = 0; i < tasks.length; i++)
1146 >                tasks[i] = new TrackedNoOpRunnable();
1147 >            for (int i = 0; i < tasks.length; i++)
1148 >                p.execute(tasks[i]);
1149 >            for (int i = 1; i < tasks.length; i++)
1150 >                assertTrue(tasks[i].done);
1151 >            assertFalse(tasks[0].done); // waiting in queue
1152 >            done.countDown();
1153          }
1154      }
1155 <    
1155 >
1156      /**
1157 <     *  Test to verify getLargestPoolSize gives correct values
1157 >     * executor using DiscardPolicy drops task if saturated.
1158       */
1159 <    public void testGetLargestPoolSize(){
1160 <        ThreadPoolExecutor two = new ThreadPoolExecutor(2, 2, 1, TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10));
1159 >    public void testSaturatedExecute3() {
1160 >        final TrackedNoOpRunnable[] tasks = new TrackedNoOpRunnable[5];
1161 >        for (int i = 0; i < tasks.length; ++i)
1162 >            tasks[i] = new TrackedNoOpRunnable();
1163 >        final ThreadPoolExecutor p =
1164 >            new ThreadPoolExecutor(1, 1,
1165 >                          LONG_DELAY_MS, MILLISECONDS,
1166 >                          new ArrayBlockingQueue<Runnable>(1),
1167 >                          new ThreadPoolExecutor.DiscardPolicy());
1168 >        try (PoolCleaner cleaner = cleaner(p)) {
1169 >            final CountDownLatch done = new CountDownLatch(1);
1170 >            p.execute(awaiter(done));
1171 >
1172 >            for (TrackedNoOpRunnable task : tasks)
1173 >                p.execute(task);
1174 >            for (int i = 1; i < tasks.length; i++)
1175 >                assertFalse(tasks[i].done);
1176 >            done.countDown();
1177 >        }
1178 >        for (int i = 1; i < tasks.length; i++)
1179 >            assertFalse(tasks[i].done);
1180 >        assertTrue(tasks[0].done); // was waiting in queue
1181 >    }
1182 >
1183 >    /**
1184 >     * executor using DiscardOldestPolicy drops oldest task if saturated.
1185 >     */
1186 >    public void testSaturatedExecute4() {
1187 >        final CountDownLatch done = new CountDownLatch(1);
1188 >        LatchAwaiter r1 = awaiter(done);
1189 >        LatchAwaiter r2 = awaiter(done);
1190 >        LatchAwaiter r3 = awaiter(done);
1191 >        final ThreadPoolExecutor p =
1192 >            new ThreadPoolExecutor(1, 1,
1193 >                                   LONG_DELAY_MS, MILLISECONDS,
1194 >                                   new ArrayBlockingQueue<Runnable>(1),
1195 >                                   new ThreadPoolExecutor.DiscardOldestPolicy());
1196 >        try (PoolCleaner cleaner = cleaner(p)) {
1197 >            assertEquals(LatchAwaiter.NEW, r1.state);
1198 >            assertEquals(LatchAwaiter.NEW, r2.state);
1199 >            assertEquals(LatchAwaiter.NEW, r3.state);
1200 >            p.execute(r1);
1201 >            p.execute(r2);
1202 >            assertTrue(p.getQueue().contains(r2));
1203 >            p.execute(r3);
1204 >            assertFalse(p.getQueue().contains(r2));
1205 >            assertTrue(p.getQueue().contains(r3));
1206 >            done.countDown();
1207 >        }
1208 >        assertEquals(LatchAwaiter.DONE, r1.state);
1209 >        assertEquals(LatchAwaiter.NEW, r2.state);
1210 >        assertEquals(LatchAwaiter.DONE, r3.state);
1211 >    }
1212 >
1213 >    /**
1214 >     * execute throws RejectedExecutionException if shutdown
1215 >     */
1216 >    public void testRejectedExecutionExceptionOnShutdown() {
1217 >        ThreadPoolExecutor p =
1218 >            new ThreadPoolExecutor(1, 1,
1219 >                                   LONG_DELAY_MS, MILLISECONDS,
1220 >                                   new ArrayBlockingQueue<Runnable>(1));
1221 >        try { p.shutdown(); } catch (SecurityException ok) { return; }
1222 >        try (PoolCleaner cleaner = cleaner(p)) {
1223 >            try {
1224 >                p.execute(new NoOpRunnable());
1225 >                shouldThrow();
1226 >            } catch (RejectedExecutionException success) {}
1227 >        }
1228 >    }
1229 >
1230 >    /**
1231 >     * execute using CallerRunsPolicy drops task on shutdown
1232 >     */
1233 >    public void testCallerRunsOnShutdown() {
1234 >        RejectedExecutionHandler h = new ThreadPoolExecutor.CallerRunsPolicy();
1235 >        final ThreadPoolExecutor p =
1236 >            new ThreadPoolExecutor(1, 1,
1237 >                                   LONG_DELAY_MS, MILLISECONDS,
1238 >                                   new ArrayBlockingQueue<Runnable>(1), h);
1239 >
1240 >        try { p.shutdown(); } catch (SecurityException ok) { return; }
1241 >        try (PoolCleaner cleaner = cleaner(p)) {
1242 >            TrackedNoOpRunnable r = new TrackedNoOpRunnable();
1243 >            p.execute(r);
1244 >            assertFalse(r.done);
1245 >        }
1246 >    }
1247 >
1248 >    /**
1249 >     * execute using DiscardPolicy drops task on shutdown
1250 >     */
1251 >    public void testDiscardOnShutdown() {
1252 >        RejectedExecutionHandler h = new ThreadPoolExecutor.DiscardPolicy();
1253 >        ThreadPoolExecutor p =
1254 >            new ThreadPoolExecutor(1, 1,
1255 >                                   LONG_DELAY_MS, MILLISECONDS,
1256 >                                   new ArrayBlockingQueue<Runnable>(1),
1257 >                                   h);
1258 >
1259 >        try { p.shutdown(); } catch (SecurityException ok) { return; }
1260          try {
1261 <            assertEquals(0, two.getLargestPoolSize());
1262 <            two.execute(newRunnable());
1263 <            two.execute(newRunnable());
135 <            try{Thread.sleep(SHORT_DELAY_MS);} catch(Exception e){}
136 <            assertEquals(2, two.getLargestPoolSize());
1261 >            TrackedNoOpRunnable r = new TrackedNoOpRunnable();
1262 >            p.execute(r);
1263 >            assertFalse(r.done);
1264          } finally {
1265 <            two.shutdown();
1265 >            joinPool(p);
1266          }
1267      }
1268 <    
1268 >
1269      /**
1270 <     *  Test to verify getMaximumPoolSize gives correct values
1270 >     * execute using DiscardOldestPolicy drops task on shutdown
1271       */
1272 <    public void testGetMaximumPoolSize(){
1273 <        ThreadPoolExecutor two = new ThreadPoolExecutor(2, 2, 1, TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10));
1272 >    public void testDiscardOldestOnShutdown() {
1273 >        RejectedExecutionHandler h = new ThreadPoolExecutor.DiscardOldestPolicy();
1274 >        ThreadPoolExecutor p =
1275 >            new ThreadPoolExecutor(1, 1,
1276 >                                   LONG_DELAY_MS, MILLISECONDS,
1277 >                                   new ArrayBlockingQueue<Runnable>(1),
1278 >                                   h);
1279 >
1280 >        try { p.shutdown(); } catch (SecurityException ok) { return; }
1281          try {
1282 <            assertEquals(2, two.getMaximumPoolSize());
1282 >            TrackedNoOpRunnable r = new TrackedNoOpRunnable();
1283 >            p.execute(r);
1284 >            assertFalse(r.done);
1285          } finally {
1286 <            two.shutdown();
1286 >            joinPool(p);
1287          }
1288      }
1289 <    
1289 >
1290 >    /**
1291 >     * execute(null) throws NPE
1292 >     */
1293 >    public void testExecuteNull() {
1294 >        ThreadPoolExecutor p =
1295 >            new ThreadPoolExecutor(1, 2, 1L, SECONDS,
1296 >                                   new ArrayBlockingQueue<Runnable>(10));
1297 >        try {
1298 >            p.execute(null);
1299 >            shouldThrow();
1300 >        } catch (NullPointerException success) {}
1301 >
1302 >        joinPool(p);
1303 >    }
1304 >
1305      /**
1306 <     *  Test to verify getPoolSize gives correct values
1306 >     * setCorePoolSize of negative value throws IllegalArgumentException
1307       */
1308 <    public void testGetPoolSize(){
1309 <        ThreadPoolExecutor one = new ThreadPoolExecutor(1, 1, 1, TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10));
1310 <        try {
1311 <            assertEquals(0, one.getPoolSize());
1312 <            one.execute(newRunnable());
1313 <            assertEquals(1, one.getPoolSize());
1308 >    public void testCorePoolSizeIllegalArgumentException() {
1309 >        ThreadPoolExecutor p =
1310 >            new ThreadPoolExecutor(1, 2,
1311 >                                   LONG_DELAY_MS, MILLISECONDS,
1312 >                                   new ArrayBlockingQueue<Runnable>(10));
1313 >        try {
1314 >            p.setCorePoolSize(-1);
1315 >            shouldThrow();
1316 >        } catch (IllegalArgumentException success) {
1317          } finally {
1318 <            one.shutdown();
1318 >            try { p.shutdown(); } catch (SecurityException ok) { return; }
1319          }
1320 +        joinPool(p);
1321      }
1322 <    
1322 >
1323      /**
1324 <     *  Test to verify getTaskCount gives correct values
1324 >     * setMaximumPoolSize(int) throws IllegalArgumentException if
1325 >     * given a value less the core pool size
1326       */
1327 <    public void testGetTaskCount(){
1328 <        ThreadPoolExecutor one = new ThreadPoolExecutor(1, 1, 1, TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10));
1327 >    public void testMaximumPoolSizeIllegalArgumentException() {
1328 >        ThreadPoolExecutor p =
1329 >            new ThreadPoolExecutor(2, 3,
1330 >                                   LONG_DELAY_MS, MILLISECONDS,
1331 >                                   new ArrayBlockingQueue<Runnable>(10));
1332          try {
1333 <            assertEquals(0, one.getTaskCount());
1334 <            for(int i = 0; i < 5; i++)
1335 <                one.execute(newRunnable());
177 <            try{Thread.sleep(SHORT_DELAY_MS);}catch(Exception e){}
178 <            assertEquals(5, one.getTaskCount());
1333 >            p.setMaximumPoolSize(1);
1334 >            shouldThrow();
1335 >        } catch (IllegalArgumentException success) {
1336          } finally {
1337 <            one.shutdown();
1337 >            try { p.shutdown(); } catch (SecurityException ok) { return; }
1338          }
1339 +        joinPool(p);
1340      }
1341 <    
1341 >
1342      /**
1343 <     *  Test to verify isShutDown gives correct values
1343 >     * setMaximumPoolSize throws IllegalArgumentException
1344 >     * if given a negative value
1345       */
1346 <    public void testIsShutdown(){
1347 <        
1348 <        ThreadPoolExecutor one = new ThreadPoolExecutor(1, 1, 1, TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10));
1346 >    public void testMaximumPoolSizeIllegalArgumentException2() {
1347 >        ThreadPoolExecutor p =
1348 >            new ThreadPoolExecutor(2, 3,
1349 >                                   LONG_DELAY_MS, MILLISECONDS,
1350 >                                   new ArrayBlockingQueue<Runnable>(10));
1351          try {
1352 <            assertFalse(one.isShutdown());
1352 >            p.setMaximumPoolSize(-1);
1353 >            shouldThrow();
1354 >        } catch (IllegalArgumentException success) {
1355 >        } finally {
1356 >            try { p.shutdown(); } catch (SecurityException ok) { return; }
1357          }
1358 <        finally {
1359 <            one.shutdown();
1358 >        joinPool(p);
1359 >    }
1360 >
1361 >    /**
1362 >     * Configuration changes that allow core pool size greater than
1363 >     * max pool size result in IllegalArgumentException.
1364 >     */
1365 >    public void testPoolSizeInvariants() {
1366 >        ThreadPoolExecutor p =
1367 >            new ThreadPoolExecutor(1, 1,
1368 >                                   LONG_DELAY_MS, MILLISECONDS,
1369 >                                   new ArrayBlockingQueue<Runnable>(10));
1370 >        for (int s = 1; s < 5; s++) {
1371 >            p.setMaximumPoolSize(s);
1372 >            p.setCorePoolSize(s);
1373 >            try {
1374 >                p.setMaximumPoolSize(s - 1);
1375 >                shouldThrow();
1376 >            } catch (IllegalArgumentException success) {}
1377 >            assertEquals(s, p.getCorePoolSize());
1378 >            assertEquals(s, p.getMaximumPoolSize());
1379 >            try {
1380 >                p.setCorePoolSize(s + 1);
1381 >                shouldThrow();
1382 >            } catch (IllegalArgumentException success) {}
1383 >            assertEquals(s, p.getCorePoolSize());
1384 >            assertEquals(s, p.getMaximumPoolSize());
1385          }
1386 <        assertTrue(one.isShutdown());
1386 >        joinPool(p);
1387      }
1388  
199        
1389      /**
1390 <     *  Test to verify isTerminated gives correct values
1391 <     *  Makes sure termination does not take an innapropriate
203 <     *  amount of time
1390 >     * setKeepAliveTime throws IllegalArgumentException
1391 >     * when given a negative value
1392       */
1393 <    public void testIsTerminated(){
1394 <        ThreadPoolExecutor one = new ThreadPoolExecutor(1, 1, 1, TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10));
1393 >    public void testKeepAliveTimeIllegalArgumentException() {
1394 >        ThreadPoolExecutor p =
1395 >            new ThreadPoolExecutor(2, 3,
1396 >                                   LONG_DELAY_MS, MILLISECONDS,
1397 >                                   new ArrayBlockingQueue<Runnable>(10));
1398          try {
1399 <            one.execute(newRunnable());
1399 >            p.setKeepAliveTime(-1,MILLISECONDS);
1400 >            shouldThrow();
1401 >        } catch (IllegalArgumentException success) {
1402          } finally {
1403 <            one.shutdown();
1403 >            try { p.shutdown(); } catch (SecurityException ok) { return; }
1404          }
1405 <        boolean flag = false;
1406 <        try{
1407 <            flag = one.awaitTermination(10, TimeUnit.SECONDS);
1408 <        }catch(Exception e){}  
1409 <        assertTrue(one.isTerminated());
1410 <        if(!flag)
1411 <            fail("ThreadPoolExecutor - thread pool did not terminate within suitable timeframe");
1405 >        joinPool(p);
1406 >    }
1407 >
1408 >    /**
1409 >     * terminated() is called on termination
1410 >     */
1411 >    public void testTerminated() {
1412 >        ExtendedTPE p = new ExtendedTPE();
1413 >        try { p.shutdown(); } catch (SecurityException ok) { return; }
1414 >        assertTrue(p.terminatedCalled());
1415 >        joinPool(p);
1416      }
1417  
1418      /**
1419 <     *  Test to verify that purge correctly removes cancelled tasks
223 <     *  from the queue
1419 >     * beforeExecute and afterExecute are called when executing task
1420       */
1421 <    public void testPurge(){
1422 <        ThreadPoolExecutor one = new ThreadPoolExecutor(1, 1, 1, TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10));
1421 >    public void testBeforeAfter() throws InterruptedException {
1422 >        ExtendedTPE p = new ExtendedTPE();
1423          try {
1424 <            CancellableTask[] tasks = new CancellableTask[5];
1425 <            for(int i = 0; i < 5; i++){
1426 <                tasks[i] = new CancellableTask(newRunnable());
1427 <                one.execute(tasks[i]);
1428 <            }
1429 <            tasks[4].cancel(true);
1430 <            tasks[3].cancel(true);
1431 <            one.purge();
1432 <            long count = one.getTaskCount();
1433 <            assertTrue(count >= 2 && count < 5);
1424 >            final CountDownLatch done = new CountDownLatch(1);
1425 >            p.execute(new CheckedRunnable() {
1426 >                public void realRun() {
1427 >                    done.countDown();
1428 >                }});
1429 >            await(p.afterCalled);
1430 >            assertEquals(0, done.getCount());
1431 >            assertTrue(p.afterCalled());
1432 >            assertTrue(p.beforeCalled());
1433 >            try { p.shutdown(); } catch (SecurityException ok) { return; }
1434          } finally {
1435 <            one.shutdown();
1435 >            joinPool(p);
1436          }
1437      }
1438  
1439      /**
1440 <     *  Test to verify shutDownNow returns a list
245 <     *  containing the correct number of elements
1440 >     * completed submit of callable returns result
1441       */
1442 <    public void testShutDownNow(){
1443 <        ThreadPoolExecutor one = new ThreadPoolExecutor(1, 1, 1, TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10));
1444 <        List l;
1442 >    public void testSubmitCallable() throws Exception {
1443 >        ExecutorService e =
1444 >            new ThreadPoolExecutor(2, 2,
1445 >                                   LONG_DELAY_MS, MILLISECONDS,
1446 >                                   new ArrayBlockingQueue<Runnable>(10));
1447          try {
1448 <            for(int i = 0; i < 5; i++)
1449 <                one.execute(newRunnable());
1450 <        }
1451 <        finally {
1452 <            l = one.shutdownNow();
1448 >            Future<String> future = e.submit(new StringTask());
1449 >            String result = future.get();
1450 >            assertSame(TEST_STRING, result);
1451 >        } finally {
1452 >            joinPool(e);
1453          }
257        assertTrue(one.isShutdown());
258        assertTrue(l.size() <= 4);
1454      }
1455  
1456 <    
1457 <
1458 <    
1459 <    
1460 <      
1461 <    // Exception Tests
1462 <    
1463 <
1464 <    //---- Tests if corePoolSize argument is less than zero
1465 <    public void testConstructor1() {
1466 <        try{
1467 <            new ThreadPoolExecutor(-1,1,100L,TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10));
1468 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1469 <        }
275 <        catch (IllegalArgumentException i){}
276 <    }
277 <    
278 <    //---- Tests if maximumPoolSize is less than zero
279 <    public void testConstructor2() {
280 <        try{
281 <            new ThreadPoolExecutor(1,-1,100L,TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10));
282 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1456 >    /**
1457 >     * completed submit of runnable returns successfully
1458 >     */
1459 >    public void testSubmitRunnable() throws Exception {
1460 >        ExecutorService e =
1461 >            new ThreadPoolExecutor(2, 2,
1462 >                                   LONG_DELAY_MS, MILLISECONDS,
1463 >                                   new ArrayBlockingQueue<Runnable>(10));
1464 >        try {
1465 >            Future<?> future = e.submit(new NoOpRunnable());
1466 >            future.get();
1467 >            assertTrue(future.isDone());
1468 >        } finally {
1469 >            joinPool(e);
1470          }
284        catch (IllegalArgumentException i2){}
1471      }
1472 <    
1473 <    //---- Tests if maximumPoolSize is equal to zero
1474 <    public void testConstructor3() {
1475 <        try{
1476 <            new ThreadPoolExecutor(1,0,100L,TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10));
1477 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1472 >
1473 >    /**
1474 >     * completed submit of (runnable, result) returns result
1475 >     */
1476 >    public void testSubmitRunnable2() throws Exception {
1477 >        ExecutorService e =
1478 >            new ThreadPoolExecutor(2, 2,
1479 >                                   LONG_DELAY_MS, MILLISECONDS,
1480 >                                   new ArrayBlockingQueue<Runnable>(10));
1481 >        try {
1482 >            Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING);
1483 >            String result = future.get();
1484 >            assertSame(TEST_STRING, result);
1485 >        } finally {
1486 >            joinPool(e);
1487          }
293        catch (IllegalArgumentException i3){}
1488      }
1489  
1490 <    //---- Tests if keepAliveTime is less than zero
1491 <    public void testConstructor4() {
1492 <        try{
1493 <            new ThreadPoolExecutor(1,2,-1L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1494 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1490 >    /**
1491 >     * invokeAny(null) throws NPE
1492 >     */
1493 >    public void testInvokeAny1() throws Exception {
1494 >        ExecutorService e =
1495 >            new ThreadPoolExecutor(2, 2,
1496 >                                   LONG_DELAY_MS, MILLISECONDS,
1497 >                                   new ArrayBlockingQueue<Runnable>(10));
1498 >        try {
1499 >            e.invokeAny(null);
1500 >            shouldThrow();
1501 >        } catch (NullPointerException success) {
1502 >        } finally {
1503 >            joinPool(e);
1504          }
302        catch (IllegalArgumentException i4){}
1505      }
1506  
1507 <    //---- Tests if corePoolSize is greater than the maximumPoolSize
1508 <    public void testConstructor5() {
1509 <        try{
1510 <            new ThreadPoolExecutor(2,1,100L,TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10));
1511 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1507 >    /**
1508 >     * invokeAny(empty collection) throws IAE
1509 >     */
1510 >    public void testInvokeAny2() throws Exception {
1511 >        ExecutorService e =
1512 >            new ThreadPoolExecutor(2, 2,
1513 >                                   LONG_DELAY_MS, MILLISECONDS,
1514 >                                   new ArrayBlockingQueue<Runnable>(10));
1515 >        try {
1516 >            e.invokeAny(new ArrayList<Callable<String>>());
1517 >            shouldThrow();
1518 >        } catch (IllegalArgumentException success) {
1519 >        } finally {
1520 >            joinPool(e);
1521          }
311        catch (IllegalArgumentException i5){}
1522      }
1523 <        
1524 <    //---- Tests if workQueue is set to null
1525 <    public void testNullPointerException() {
1526 <        try{
1527 <            new ThreadPoolExecutor(1,2,100L,TimeUnit.MILLISECONDS,null);
1528 <            fail("ThreadPoolExecutor constructor should throw a NullPointerException");        
1523 >
1524 >    /**
1525 >     * invokeAny(c) throws NPE if c has null elements
1526 >     */
1527 >    public void testInvokeAny3() throws Exception {
1528 >        final CountDownLatch latch = new CountDownLatch(1);
1529 >        final ExecutorService e =
1530 >            new ThreadPoolExecutor(2, 2,
1531 >                                   LONG_DELAY_MS, MILLISECONDS,
1532 >                                   new ArrayBlockingQueue<Runnable>(10));
1533 >        List<Callable<String>> l = new ArrayList<Callable<String>>();
1534 >        l.add(latchAwaitingStringTask(latch));
1535 >        l.add(null);
1536 >        try {
1537 >            e.invokeAny(l);
1538 >            shouldThrow();
1539 >        } catch (NullPointerException success) {
1540 >        } finally {
1541 >            latch.countDown();
1542 >            joinPool(e);
1543          }
320        catch (NullPointerException n){}  
1544      }
322    
1545  
1546 <    
1547 <    //---- Tests if corePoolSize argument is less than zero
1548 <    public void testConstructor6() {
1549 <        try{
1550 <            new ThreadPoolExecutor(-1,1,100L,TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10),new testThread());
1551 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1552 <        }catch (IllegalArgumentException i6){}
1553 <    }
1554 <    
1555 <    //---- Tests if maximumPoolSize is less than zero
1556 <    public void testConstructor7() {
1557 <        try{
1558 <            new ThreadPoolExecutor(1,-1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new testThread());
1559 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1546 >    /**
1547 >     * invokeAny(c) throws ExecutionException if no task completes
1548 >     */
1549 >    public void testInvokeAny4() throws Exception {
1550 >        ExecutorService e =
1551 >            new ThreadPoolExecutor(2, 2,
1552 >                                   LONG_DELAY_MS, MILLISECONDS,
1553 >                                   new ArrayBlockingQueue<Runnable>(10));
1554 >        List<Callable<String>> l = new ArrayList<Callable<String>>();
1555 >        l.add(new NPETask());
1556 >        try {
1557 >            e.invokeAny(l);
1558 >            shouldThrow();
1559 >        } catch (ExecutionException success) {
1560 >            assertTrue(success.getCause() instanceof NullPointerException);
1561 >        } finally {
1562 >            joinPool(e);
1563          }
339        catch (IllegalArgumentException i7){}
1564      }
1565  
1566 <    //---- Tests if maximumPoolSize is equal to zero
1567 <    public void testConstructor8() {
1568 <        try{
1569 <            new ThreadPoolExecutor(1,0,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new testThread());
1570 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1566 >    /**
1567 >     * invokeAny(c) returns result of some task
1568 >     */
1569 >    public void testInvokeAny5() throws Exception {
1570 >        ExecutorService e =
1571 >            new ThreadPoolExecutor(2, 2,
1572 >                                   LONG_DELAY_MS, MILLISECONDS,
1573 >                                   new ArrayBlockingQueue<Runnable>(10));
1574 >        try {
1575 >            List<Callable<String>> l = new ArrayList<Callable<String>>();
1576 >            l.add(new StringTask());
1577 >            l.add(new StringTask());
1578 >            String result = e.invokeAny(l);
1579 >            assertSame(TEST_STRING, result);
1580 >        } finally {
1581 >            joinPool(e);
1582          }
348        catch (IllegalArgumentException i8){}
1583      }
1584  
1585 <    //---- Tests if keepAliveTime is less than zero
1586 <    public void testConstructor9() {
1587 <        try{
1588 <            new ThreadPoolExecutor(1,2,-1L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new testThread());
1589 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1585 >    /**
1586 >     * invokeAll(null) throws NPE
1587 >     */
1588 >    public void testInvokeAll1() throws Exception {
1589 >        ExecutorService e =
1590 >            new ThreadPoolExecutor(2, 2,
1591 >                                   LONG_DELAY_MS, MILLISECONDS,
1592 >                                   new ArrayBlockingQueue<Runnable>(10));
1593 >        try {
1594 >            e.invokeAll(null);
1595 >            shouldThrow();
1596 >        } catch (NullPointerException success) {
1597 >        } finally {
1598 >            joinPool(e);
1599          }
357        catch (IllegalArgumentException i9){}
1600      }
1601  
1602 <    //---- Tests if corePoolSize is greater than the maximumPoolSize
1603 <    public void testConstructor10() {
1604 <        try{
1605 <            new ThreadPoolExecutor(2,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new testThread());
1606 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1602 >    /**
1603 >     * invokeAll(empty collection) returns empty collection
1604 >     */
1605 >    public void testInvokeAll2() throws InterruptedException {
1606 >        ExecutorService e =
1607 >            new ThreadPoolExecutor(2, 2,
1608 >                                   LONG_DELAY_MS, MILLISECONDS,
1609 >                                   new ArrayBlockingQueue<Runnable>(10));
1610 >        try {
1611 >            List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>());
1612 >            assertTrue(r.isEmpty());
1613 >        } finally {
1614 >            joinPool(e);
1615          }
366        catch (IllegalArgumentException i10){}
1616      }
1617  
1618 <    //---- Tests if workQueue is set to null
1619 <    public void testNullPointerException2() {
1620 <        try{
1621 <            new ThreadPoolExecutor(1,2,100L,TimeUnit.MILLISECONDS,null,new testThread());
1622 <            fail("ThreadPoolExecutor constructor should throw a NullPointerException");        
1618 >    /**
1619 >     * invokeAll(c) throws NPE if c has null elements
1620 >     */
1621 >    public void testInvokeAll3() throws Exception {
1622 >        ExecutorService e =
1623 >            new ThreadPoolExecutor(2, 2,
1624 >                                   LONG_DELAY_MS, MILLISECONDS,
1625 >                                   new ArrayBlockingQueue<Runnable>(10));
1626 >        List<Callable<String>> l = new ArrayList<Callable<String>>();
1627 >        l.add(new StringTask());
1628 >        l.add(null);
1629 >        try {
1630 >            e.invokeAll(l);
1631 >            shouldThrow();
1632 >        } catch (NullPointerException success) {
1633 >        } finally {
1634 >            joinPool(e);
1635          }
375        catch (NullPointerException n2){}  
1636      }
1637  
1638 <    //---- Tests if threadFactory is set to null
1639 <    public void testNullPointerException3() {
1640 <        try{
1641 <            ThreadFactory f = null;
1642 <            new ThreadPoolExecutor(1,2,100L,TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10),f);
1643 <            fail("ThreadPoolExecutor constructor should throw a NullPointerException");        
1638 >    /**
1639 >     * get of element of invokeAll(c) throws exception on failed task
1640 >     */
1641 >    public void testInvokeAll4() throws Exception {
1642 >        ExecutorService e =
1643 >            new ThreadPoolExecutor(2, 2,
1644 >                                   LONG_DELAY_MS, MILLISECONDS,
1645 >                                   new ArrayBlockingQueue<Runnable>(10));
1646 >        try {
1647 >            List<Callable<String>> l = new ArrayList<Callable<String>>();
1648 >            l.add(new NPETask());
1649 >            List<Future<String>> futures = e.invokeAll(l);
1650 >            assertEquals(1, futures.size());
1651 >            try {
1652 >                futures.get(0).get();
1653 >                shouldThrow();
1654 >            } catch (ExecutionException success) {
1655 >                assertTrue(success.getCause() instanceof NullPointerException);
1656 >            }
1657 >        } finally {
1658 >            joinPool(e);
1659          }
385        catch (NullPointerException n3){}  
1660      }
1661 <
1662 <    
1663 <    //---- Tests if corePoolSize argument is less than zero
1664 <    public void testConstructor11() {
1665 <        try{
1666 <            new ThreadPoolExecutor(-1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new testReject());
1667 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1661 >
1662 >    /**
1663 >     * invokeAll(c) returns results of all completed tasks
1664 >     */
1665 >    public void testInvokeAll5() throws Exception {
1666 >        ExecutorService e =
1667 >            new ThreadPoolExecutor(2, 2,
1668 >                                   LONG_DELAY_MS, MILLISECONDS,
1669 >                                   new ArrayBlockingQueue<Runnable>(10));
1670 >        try {
1671 >            List<Callable<String>> l = new ArrayList<Callable<String>>();
1672 >            l.add(new StringTask());
1673 >            l.add(new StringTask());
1674 >            List<Future<String>> futures = e.invokeAll(l);
1675 >            assertEquals(2, futures.size());
1676 >            for (Future<String> future : futures)
1677 >                assertSame(TEST_STRING, future.get());
1678 >        } finally {
1679 >            joinPool(e);
1680          }
395        catch (IllegalArgumentException i11){}
1681      }
1682  
1683 <    //---- Tests if maximumPoolSize is less than zero
1684 <    public void testConstructor12() {
1685 <        try{
1686 <            new ThreadPoolExecutor(1,-1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new testReject());
1687 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1683 >    /**
1684 >     * timed invokeAny(null) throws NPE
1685 >     */
1686 >    public void testTimedInvokeAny1() throws Exception {
1687 >        ExecutorService e =
1688 >            new ThreadPoolExecutor(2, 2,
1689 >                                   LONG_DELAY_MS, MILLISECONDS,
1690 >                                   new ArrayBlockingQueue<Runnable>(10));
1691 >        try {
1692 >            e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS);
1693 >            shouldThrow();
1694 >        } catch (NullPointerException success) {
1695 >        } finally {
1696 >            joinPool(e);
1697          }
404        catch (IllegalArgumentException i12){}
1698      }
1699  
1700 <    //---- Tests if maximumPoolSize is equal to zero
1701 <    public void testConstructor13() {
1702 <        try{
1703 <            new ThreadPoolExecutor(1,0,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new testReject());
1704 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1700 >    /**
1701 >     * timed invokeAny(,,null) throws NPE
1702 >     */
1703 >    public void testTimedInvokeAnyNullTimeUnit() throws Exception {
1704 >        ExecutorService e =
1705 >            new ThreadPoolExecutor(2, 2,
1706 >                                   LONG_DELAY_MS, MILLISECONDS,
1707 >                                   new ArrayBlockingQueue<Runnable>(10));
1708 >        List<Callable<String>> l = new ArrayList<Callable<String>>();
1709 >        l.add(new StringTask());
1710 >        try {
1711 >            e.invokeAny(l, MEDIUM_DELAY_MS, null);
1712 >            shouldThrow();
1713 >        } catch (NullPointerException success) {
1714 >        } finally {
1715 >            joinPool(e);
1716          }
413        catch (IllegalArgumentException i13){}
1717      }
1718  
1719 <    //---- Tests if keepAliveTime is less than zero
1720 <    public void testConstructor14() {
1721 <        try{
1722 <            new ThreadPoolExecutor(1,2,-1L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new testReject());
1723 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1719 >    /**
1720 >     * timed invokeAny(empty collection) throws IAE
1721 >     */
1722 >    public void testTimedInvokeAny2() throws Exception {
1723 >        ExecutorService e =
1724 >            new ThreadPoolExecutor(2, 2,
1725 >                                   LONG_DELAY_MS, MILLISECONDS,
1726 >                                   new ArrayBlockingQueue<Runnable>(10));
1727 >        try {
1728 >            e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
1729 >            shouldThrow();
1730 >        } catch (IllegalArgumentException success) {
1731 >        } finally {
1732 >            joinPool(e);
1733          }
422        catch (IllegalArgumentException i14){}
1734      }
1735  
1736 <    //---- Tests if corePoolSize is greater than the maximumPoolSize
1737 <    public void testConstructor15() {
1738 <        try{
1739 <            new ThreadPoolExecutor(2,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new testReject());
1740 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1736 >    /**
1737 >     * timed invokeAny(c) throws NPE if c has null elements
1738 >     */
1739 >    public void testTimedInvokeAny3() throws Exception {
1740 >        final CountDownLatch latch = new CountDownLatch(1);
1741 >        final ExecutorService e =
1742 >            new ThreadPoolExecutor(2, 2,
1743 >                                   LONG_DELAY_MS, MILLISECONDS,
1744 >                                   new ArrayBlockingQueue<Runnable>(10));
1745 >        List<Callable<String>> l = new ArrayList<Callable<String>>();
1746 >        l.add(latchAwaitingStringTask(latch));
1747 >        l.add(null);
1748 >        try {
1749 >            e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1750 >            shouldThrow();
1751 >        } catch (NullPointerException success) {
1752 >        } finally {
1753 >            latch.countDown();
1754 >            joinPool(e);
1755          }
431        catch (IllegalArgumentException i15){}
1756      }
1757  
1758 <    //---- Tests if workQueue is set to null
1759 <    public void testNullPointerException4() {
1760 <        try{
1761 <            new ThreadPoolExecutor(1,2,100L,TimeUnit.MILLISECONDS,null,new testReject());
1762 <            fail("ThreadPoolExecutor constructor should throw a NullPointerException");        
1758 >    /**
1759 >     * timed invokeAny(c) throws ExecutionException if no task completes
1760 >     */
1761 >    public void testTimedInvokeAny4() throws Exception {
1762 >        ExecutorService e =
1763 >            new ThreadPoolExecutor(2, 2,
1764 >                                   LONG_DELAY_MS, MILLISECONDS,
1765 >                                   new ArrayBlockingQueue<Runnable>(10));
1766 >        List<Callable<String>> l = new ArrayList<Callable<String>>();
1767 >        l.add(new NPETask());
1768 >        try {
1769 >            e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1770 >            shouldThrow();
1771 >        } catch (ExecutionException success) {
1772 >            assertTrue(success.getCause() instanceof NullPointerException);
1773 >        } finally {
1774 >            joinPool(e);
1775          }
440        catch (NullPointerException n4){}  
1776      }
1777  
1778 <    //---- Tests if handler is set to null
1779 <    public void testNullPointerException5() {
1780 <        try{
1781 <            RejectedExecutionHandler r = null;
1782 <            new ThreadPoolExecutor(1,2,100L,TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10),r);
1783 <            fail("ThreadPoolExecutor constructor should throw a NullPointerException");        
1778 >    /**
1779 >     * timed invokeAny(c) returns result of some task
1780 >     */
1781 >    public void testTimedInvokeAny5() throws Exception {
1782 >        ExecutorService e =
1783 >            new ThreadPoolExecutor(2, 2,
1784 >                                   LONG_DELAY_MS, MILLISECONDS,
1785 >                                   new ArrayBlockingQueue<Runnable>(10));
1786 >        try {
1787 >            List<Callable<String>> l = new ArrayList<Callable<String>>();
1788 >            l.add(new StringTask());
1789 >            l.add(new StringTask());
1790 >            String result = e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1791 >            assertSame(TEST_STRING, result);
1792 >        } finally {
1793 >            joinPool(e);
1794          }
450        catch (NullPointerException n5){}  
1795      }
1796  
1797 <    
1798 <    //---- Tests if corePoolSize argument is less than zero
1799 <    public void testConstructor16() {
1800 <        try{
1801 <            new ThreadPoolExecutor(-1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new testThread(),new testReject());
1802 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1797 >    /**
1798 >     * timed invokeAll(null) throws NPE
1799 >     */
1800 >    public void testTimedInvokeAll1() throws Exception {
1801 >        ExecutorService e =
1802 >            new ThreadPoolExecutor(2, 2,
1803 >                                   LONG_DELAY_MS, MILLISECONDS,
1804 >                                   new ArrayBlockingQueue<Runnable>(10));
1805 >        try {
1806 >            e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS);
1807 >            shouldThrow();
1808 >        } catch (NullPointerException success) {
1809 >        } finally {
1810 >            joinPool(e);
1811          }
460        catch (IllegalArgumentException i16){}
1812      }
1813  
1814 <    //---- Tests if maximumPoolSize is less than zero
1815 <    public void testConstructor17() {
1816 <        try{
1817 <            new ThreadPoolExecutor(1,-1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new testThread(),new testReject());
1818 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1814 >    /**
1815 >     * timed invokeAll(,,null) throws NPE
1816 >     */
1817 >    public void testTimedInvokeAllNullTimeUnit() throws Exception {
1818 >        ExecutorService e =
1819 >            new ThreadPoolExecutor(2, 2,
1820 >                                   LONG_DELAY_MS, MILLISECONDS,
1821 >                                   new ArrayBlockingQueue<Runnable>(10));
1822 >        List<Callable<String>> l = new ArrayList<Callable<String>>();
1823 >        l.add(new StringTask());
1824 >        try {
1825 >            e.invokeAll(l, MEDIUM_DELAY_MS, null);
1826 >            shouldThrow();
1827 >        } catch (NullPointerException success) {
1828 >        } finally {
1829 >            joinPool(e);
1830          }
469        catch (IllegalArgumentException i17){}
1831      }
1832  
1833 <    //---- Tests if maximumPoolSize is equal to zero
1834 <    public void testConstructor18() {
1835 <        try{
1836 <            new ThreadPoolExecutor(1,0,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new testThread(),new testReject());
1837 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1833 >    /**
1834 >     * timed invokeAll(empty collection) returns empty collection
1835 >     */
1836 >    public void testTimedInvokeAll2() throws InterruptedException {
1837 >        ExecutorService e =
1838 >            new ThreadPoolExecutor(2, 2,
1839 >                                   LONG_DELAY_MS, MILLISECONDS,
1840 >                                   new ArrayBlockingQueue<Runnable>(10));
1841 >        try {
1842 >            List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
1843 >            assertTrue(r.isEmpty());
1844 >        } finally {
1845 >            joinPool(e);
1846          }
478        catch (IllegalArgumentException i18){}
1847      }
1848  
1849 <    //---- Tests if keepAliveTime is less than zero
1850 <    public void testConstructor19() {
1851 <        try{
1852 <            new ThreadPoolExecutor(1,2,-1L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new testThread(),new testReject());
1853 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1849 >    /**
1850 >     * timed invokeAll(c) throws NPE if c has null elements
1851 >     */
1852 >    public void testTimedInvokeAll3() throws Exception {
1853 >        ExecutorService e =
1854 >            new ThreadPoolExecutor(2, 2,
1855 >                                   LONG_DELAY_MS, MILLISECONDS,
1856 >                                   new ArrayBlockingQueue<Runnable>(10));
1857 >        List<Callable<String>> l = new ArrayList<Callable<String>>();
1858 >        l.add(new StringTask());
1859 >        l.add(null);
1860 >        try {
1861 >            e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1862 >            shouldThrow();
1863 >        } catch (NullPointerException success) {
1864 >        } finally {
1865 >            joinPool(e);
1866          }
487        catch (IllegalArgumentException i19){}
1867      }
1868  
1869 <    //---- Tests if corePoolSize is greater than the maximumPoolSize
1870 <    public void testConstructor20() {
1871 <        try{
1872 <            new ThreadPoolExecutor(2,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new testThread(),new testReject());
1873 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1869 >    /**
1870 >     * get of element of invokeAll(c) throws exception on failed task
1871 >     */
1872 >    public void testTimedInvokeAll4() throws Exception {
1873 >        ExecutorService e =
1874 >            new ThreadPoolExecutor(2, 2,
1875 >                                   LONG_DELAY_MS, MILLISECONDS,
1876 >                                   new ArrayBlockingQueue<Runnable>(10));
1877 >        List<Callable<String>> l = new ArrayList<Callable<String>>();
1878 >        l.add(new NPETask());
1879 >        List<Future<String>> futures =
1880 >            e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1881 >        assertEquals(1, futures.size());
1882 >        try {
1883 >            futures.get(0).get();
1884 >            shouldThrow();
1885 >        } catch (ExecutionException success) {
1886 >            assertTrue(success.getCause() instanceof NullPointerException);
1887 >        } finally {
1888 >            joinPool(e);
1889          }
496        catch (IllegalArgumentException i20){}
1890      }
1891  
1892 <    //---- Tests if workQueue is set to null
1893 <    public void testNullPointerException6() {
1894 <        try{
1895 <            new ThreadPoolExecutor(1,2,100L,TimeUnit.MILLISECONDS,null,new testThread(),new testReject());
1896 <            fail("ThreadPoolExecutor constructor should throw a NullPointerException");        
1892 >    /**
1893 >     * timed invokeAll(c) returns results of all completed tasks
1894 >     */
1895 >    public void testTimedInvokeAll5() throws Exception {
1896 >        ExecutorService e =
1897 >            new ThreadPoolExecutor(2, 2,
1898 >                                   LONG_DELAY_MS, MILLISECONDS,
1899 >                                   new ArrayBlockingQueue<Runnable>(10));
1900 >        try {
1901 >            List<Callable<String>> l = new ArrayList<Callable<String>>();
1902 >            l.add(new StringTask());
1903 >            l.add(new StringTask());
1904 >            List<Future<String>> futures =
1905 >                e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS);
1906 >            assertEquals(2, futures.size());
1907 >            for (Future<String> future : futures)
1908 >                assertSame(TEST_STRING, future.get());
1909 >        } finally {
1910 >            joinPool(e);
1911          }
505        catch (NullPointerException n6){}  
1912      }
1913  
1914 <    //---- Tests if handler is set to null
1915 <    public void testNullPointerException7() {
1916 <        try{
1917 <            RejectedExecutionHandler r = null;
1918 <            new ThreadPoolExecutor(1,2,100L,TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10),new testThread(),r);
1919 <            fail("ThreadPoolExecutor constructor should throw a NullPointerException");        
1914 >    /**
1915 >     * timed invokeAll(c) cancels tasks not completed by timeout
1916 >     */
1917 >    public void testTimedInvokeAll6() throws Exception {
1918 >        ExecutorService e =
1919 >            new ThreadPoolExecutor(2, 2,
1920 >                                   LONG_DELAY_MS, MILLISECONDS,
1921 >                                   new ArrayBlockingQueue<Runnable>(10));
1922 >        try {
1923 >            for (long timeout = timeoutMillis();;) {
1924 >                List<Callable<String>> tasks = new ArrayList<>();
1925 >                tasks.add(new StringTask("0"));
1926 >                tasks.add(Executors.callable(new LongPossiblyInterruptedRunnable(), TEST_STRING));
1927 >                tasks.add(new StringTask("2"));
1928 >                long startTime = System.nanoTime();
1929 >                List<Future<String>> futures =
1930 >                    e.invokeAll(tasks, timeout, MILLISECONDS);
1931 >                assertEquals(tasks.size(), futures.size());
1932 >                assertTrue(millisElapsedSince(startTime) >= timeout);
1933 >                for (Future future : futures)
1934 >                    assertTrue(future.isDone());
1935 >                assertTrue(futures.get(1).isCancelled());
1936 >                try {
1937 >                    assertEquals("0", futures.get(0).get());
1938 >                    assertEquals("2", futures.get(2).get());
1939 >                    break;
1940 >                } catch (CancellationException retryWithLongerTimeout) {
1941 >                    timeout *= 2;
1942 >                    if (timeout >= LONG_DELAY_MS / 2)
1943 >                        fail("expected exactly one task to be cancelled");
1944 >                }
1945 >            }
1946 >        } finally {
1947 >            joinPool(e);
1948          }
515        catch (NullPointerException n7){}  
1949      }
1950  
1951 <    //---- Tests if ThradFactory is set top null
1952 <    public void testNullPointerException8() {
1953 <        try{
1954 <            ThreadFactory f = null;
1955 <            new ThreadPoolExecutor(1,2,100L,TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10),f,new testReject());
1956 <            fail("ThreadPoolExecutor constructor should throw a NullPointerException");        
1951 >    /**
1952 >     * Execution continues if there is at least one thread even if
1953 >     * thread factory fails to create more
1954 >     */
1955 >    public void testFailingThreadFactory() throws InterruptedException {
1956 >        final ExecutorService e =
1957 >            new ThreadPoolExecutor(100, 100,
1958 >                                   LONG_DELAY_MS, MILLISECONDS,
1959 >                                   new LinkedBlockingQueue<Runnable>(),
1960 >                                   new FailingThreadFactory());
1961 >        try {
1962 >            final int TASKS = 100;
1963 >            final CountDownLatch done = new CountDownLatch(TASKS);
1964 >            for (int k = 0; k < TASKS; ++k)
1965 >                e.execute(new CheckedRunnable() {
1966 >                    public void realRun() {
1967 >                        done.countDown();
1968 >                    }});
1969 >            assertTrue(done.await(LONG_DELAY_MS, MILLISECONDS));
1970 >        } finally {
1971 >            joinPool(e);
1972          }
525        catch (NullPointerException n8){}  
1973      }
527    
1974  
1975      /**
1976 <     *  Test to verify execute will throw RejectedExcutionException
531 <     *  ThreadPoolExecutor will throw one when more runnables are
532 <     *  executed then will fit in the Queue.
1976 >     * allowsCoreThreadTimeOut is by default false.
1977       */
1978 <    public void testRejectedExecutedException(){
1979 <        ThreadPoolExecutor tpe = null;
1980 <        try{
1981 <            tpe = new ThreadPoolExecutor(1,1,100,TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(1));
1982 <        }catch(Exception e){}
1983 <        tpe.shutdown();
1984 <        try{
541 <            tpe.execute(new Runnable(){
542 <                    public void run(){
543 <                        try{
544 <                            Thread.sleep(1000);
545 <                        }catch(InterruptedException e){}
546 <                    }
547 <                });
548 <            fail("ThreadPoolExecutor - void execute(Runnable) should throw RejectedExecutionException");
549 <        }catch(RejectedExecutionException sucess){}
550 <        
551 <        
1978 >    public void testAllowsCoreThreadTimeOut() {
1979 >        final ThreadPoolExecutor p =
1980 >            new ThreadPoolExecutor(2, 2,
1981 >                                   1000, MILLISECONDS,
1982 >                                   new ArrayBlockingQueue<Runnable>(10));
1983 >        assertFalse(p.allowsCoreThreadTimeOut());
1984 >        joinPool(p);
1985      }
1986 <    
1986 >
1987      /**
1988 <     *  Test to verify setCorePoolSize will throw IllegalArgumentException
556 <     *  when given a negative
1988 >     * allowCoreThreadTimeOut(true) causes idle threads to time out
1989       */
1990 <    public void testIllegalArgumentException1(){
1991 <        ThreadPoolExecutor tpe = null;
1992 <        try{
1993 <            tpe = new ThreadPoolExecutor(1,2,100,TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10));
1994 <        }catch(Exception e){}
1995 <        try{
1996 <            tpe.setCorePoolSize(-1);
1997 <            fail("ThreadPoolExecutor - void setCorePoolSize(int) should throw IllegalArgumentException");
1998 <        }catch(IllegalArgumentException sucess){
1990 >    public void testAllowCoreThreadTimeOut_true() throws Exception {
1991 >        long keepAliveTime = timeoutMillis();
1992 >        final ThreadPoolExecutor p =
1993 >            new ThreadPoolExecutor(2, 10,
1994 >                                   keepAliveTime, MILLISECONDS,
1995 >                                   new ArrayBlockingQueue<Runnable>(10));
1996 >        final CountDownLatch threadStarted = new CountDownLatch(1);
1997 >        try {
1998 >            p.allowCoreThreadTimeOut(true);
1999 >            p.execute(new CheckedRunnable() {
2000 >                public void realRun() {
2001 >                    threadStarted.countDown();
2002 >                    assertEquals(1, p.getPoolSize());
2003 >                }});
2004 >            await(threadStarted);
2005 >            delay(keepAliveTime);
2006 >            long startTime = System.nanoTime();
2007 >            while (p.getPoolSize() > 0
2008 >                   && millisElapsedSince(startTime) < LONG_DELAY_MS)
2009 >                Thread.yield();
2010 >            assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
2011 >            assertEquals(0, p.getPoolSize());
2012          } finally {
2013 <            tpe.shutdown();
2013 >            joinPool(p);
2014          }
2015 <    }  
2015 >    }
2016  
572    
2017      /**
2018 <     *  Test to verify setMaximumPoolSize(int) will throw IllegalArgumentException
2019 <     *  if given a value less the it's actual core pool size
2020 <     */  
2021 <    public void testIllegalArgumentException2(){
2022 <        ThreadPoolExecutor tpe = null;
2023 <        try{
2024 <            tpe = new ThreadPoolExecutor(2,3,100,TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10));
2025 <        }catch(Exception e){}
2026 <        try{
2027 <            tpe.setMaximumPoolSize(1);
2028 <            fail("ThreadPoolExecutor - void setMaximumPoolSize(int) should throw IllegalArgumentException");
2029 <        }catch(IllegalArgumentException sucess){
2018 >     * allowCoreThreadTimeOut(false) causes idle threads not to time out
2019 >     */
2020 >    public void testAllowCoreThreadTimeOut_false() throws Exception {
2021 >        long keepAliveTime = timeoutMillis();
2022 >        final ThreadPoolExecutor p =
2023 >            new ThreadPoolExecutor(2, 10,
2024 >                                   keepAliveTime, MILLISECONDS,
2025 >                                   new ArrayBlockingQueue<Runnable>(10));
2026 >        final CountDownLatch threadStarted = new CountDownLatch(1);
2027 >        try {
2028 >            p.allowCoreThreadTimeOut(false);
2029 >            p.execute(new CheckedRunnable() {
2030 >                public void realRun() throws InterruptedException {
2031 >                    threadStarted.countDown();
2032 >                    assertTrue(p.getPoolSize() >= 1);
2033 >                }});
2034 >            delay(2 * keepAliveTime);
2035 >            assertTrue(p.getPoolSize() >= 1);
2036          } finally {
2037 <            tpe.shutdown();
2037 >            joinPool(p);
2038          }
2039      }
2040 <    
2040 >
2041      /**
2042 <     *  Test to verify that setMaximumPoolSize will throw IllegalArgumentException
2043 <     *  if given a negative number
2042 >     * execute allows the same task to be submitted multiple times, even
2043 >     * if rejected
2044       */
2045 <    public void testIllegalArgumentException2SP(){
2046 <        ThreadPoolExecutor tpe = null;
2047 <        try{
2048 <            tpe = new ThreadPoolExecutor(2,3,100,TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10));
2049 <        }catch(Exception e){}
2050 <        try{
2051 <            tpe.setMaximumPoolSize(-1);
2052 <            fail("ThreadPoolExecutor - void setMaximumPoolSize(int) should throw IllegalArgumentException");
2053 <        }catch(IllegalArgumentException sucess){
2045 >    public void testRejectedRecycledTask() throws InterruptedException {
2046 >        final int nTasks = 1000;
2047 >        final CountDownLatch done = new CountDownLatch(nTasks);
2048 >        final Runnable recycledTask = new Runnable() {
2049 >            public void run() {
2050 >                done.countDown();
2051 >            }};
2052 >        final ThreadPoolExecutor p =
2053 >            new ThreadPoolExecutor(1, 30,
2054 >                                   60, SECONDS,
2055 >                                   new ArrayBlockingQueue(30));
2056 >        try {
2057 >            for (int i = 0; i < nTasks; ++i) {
2058 >                for (;;) {
2059 >                    try {
2060 >                        p.execute(recycledTask);
2061 >                        break;
2062 >                    }
2063 >                    catch (RejectedExecutionException ignore) {}
2064 >                }
2065 >            }
2066 >            // enough time to run all tasks
2067 >            assertTrue(done.await(nTasks * SHORT_DELAY_MS, MILLISECONDS));
2068          } finally {
2069 <            tpe.shutdown();
2069 >            joinPool(p);
2070          }
2071      }
608    
2072  
2073      /**
2074 <     *  Test to verify setKeepAliveTime will throw IllegalArgumentException
612 <     *  when given a negative value
2074 >     * get(cancelled task) throws CancellationException
2075       */
2076 <    public void testIllegalArgumentException3(){
2077 <        ThreadPoolExecutor tpe = null;
2078 <        try{
2079 <            tpe = new ThreadPoolExecutor(2,3,100,TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10));
2080 <        }catch(Exception e){}
2081 <        
2082 <        try{
2083 <            tpe.setKeepAliveTime(-1,TimeUnit.MILLISECONDS);
2084 <            fail("ThreadPoolExecutor - void setKeepAliveTime(long, TimeUnit) should throw IllegalArgumentException");
2085 <        }catch(IllegalArgumentException sucess){
2076 >    public void testGet_cancelled() throws Exception {
2077 >        final ExecutorService e =
2078 >            new ThreadPoolExecutor(1, 1,
2079 >                                   LONG_DELAY_MS, MILLISECONDS,
2080 >                                   new LinkedBlockingQueue<Runnable>());
2081 >        try {
2082 >            final CountDownLatch blockerStarted = new CountDownLatch(1);
2083 >            final CountDownLatch done = new CountDownLatch(1);
2084 >            final List<Future<?>> futures = new ArrayList<>();
2085 >            for (int i = 0; i < 2; i++) {
2086 >                Runnable r = new CheckedRunnable() { public void realRun()
2087 >                                                         throws Throwable {
2088 >                    blockerStarted.countDown();
2089 >                    assertTrue(done.await(2 * LONG_DELAY_MS, MILLISECONDS));
2090 >                }};
2091 >                futures.add(e.submit(r));
2092 >            }
2093 >            assertTrue(blockerStarted.await(LONG_DELAY_MS, MILLISECONDS));
2094 >            for (Future<?> future : futures) future.cancel(false);
2095 >            for (Future<?> future : futures) {
2096 >                try {
2097 >                    future.get();
2098 >                    shouldThrow();
2099 >                } catch (CancellationException success) {}
2100 >                try {
2101 >                    future.get(LONG_DELAY_MS, MILLISECONDS);
2102 >                    shouldThrow();
2103 >                } catch (CancellationException success) {}
2104 >                assertTrue(future.isCancelled());
2105 >                assertTrue(future.isDone());
2106 >            }
2107 >            done.countDown();
2108          } finally {
2109 <            tpe.shutdown();
2109 >            joinPool(e);
2110          }
2111      }
2112 <  
629 <    
630 <  
2112 >
2113   }

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