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Comparing jsr166/src/test/tck/ThreadPoolExecutorTest.java (file contents):
Revision 1.3 by dl, Sun Sep 14 20:42:41 2003 UTC vs.
Revision 1.96 by jsr166, Sun Oct 4 06:39:13 2015 UTC

# Line 1 | Line 1
1   /*
2 < * Written by members of JCP JSR-166 Expert Group and released to the
3 < * public domain. Use, modify, and redistribute this code in any way
4 < * without acknowledgement. Other contributors include Andrew Wright,
5 < * Jeffrey Hayes, Pat Fischer, Mike Judd.
2 > * Written by Doug Lea with assistance from members of JCP JSR-166
3 > * Expert Group and released to the public domain, as explained at
4 > * http://creativecommons.org/publicdomain/zero/1.0/
5 > * Other contributors include Andrew Wright, Jeffrey Hayes,
6 > * Pat Fisher, Mike Judd.
7   */
8  
9 < import java.util.concurrent.*;
10 < import junit.framework.*;
9 > import static java.util.concurrent.TimeUnit.MILLISECONDS;
10 > import static java.util.concurrent.TimeUnit.NANOSECONDS;
11 > import static java.util.concurrent.TimeUnit.SECONDS;
12 >
13 > import java.util.ArrayList;
14   import java.util.List;
15 + import java.util.concurrent.ArrayBlockingQueue;
16 + import java.util.concurrent.BlockingQueue;
17 + import java.util.concurrent.Callable;
18 + import java.util.concurrent.CancellationException;
19 + import java.util.concurrent.CountDownLatch;
20 + import java.util.concurrent.ExecutionException;
21 + import java.util.concurrent.Executors;
22 + import java.util.concurrent.ExecutorService;
23 + import java.util.concurrent.Future;
24 + import java.util.concurrent.FutureTask;
25 + import java.util.concurrent.LinkedBlockingQueue;
26 + import java.util.concurrent.RejectedExecutionException;
27 + import java.util.concurrent.RejectedExecutionHandler;
28 + import java.util.concurrent.SynchronousQueue;
29 + import java.util.concurrent.ThreadFactory;
30 + import java.util.concurrent.ThreadPoolExecutor;
31 + import java.util.concurrent.TimeUnit;
32 + import java.util.concurrent.atomic.AtomicInteger;
33 +
34 + import junit.framework.Test;
35 + import junit.framework.TestSuite;
36  
37   public class ThreadPoolExecutorTest extends JSR166TestCase {
38      public static void main(String[] args) {
39 <        junit.textui.TestRunner.run (suite());  
39 >        main(suite(), args);
40      }
41      public static Test suite() {
42          return new TestSuite(ThreadPoolExecutorTest.class);
43      }
44 <    
44 >
45 >    static class ExtendedTPE extends ThreadPoolExecutor {
46 >        final CountDownLatch beforeCalled = new CountDownLatch(1);
47 >        final CountDownLatch afterCalled = new CountDownLatch(1);
48 >        final CountDownLatch terminatedCalled = new CountDownLatch(1);
49 >
50 >        public ExtendedTPE() {
51 >            super(1, 1, LONG_DELAY_MS, MILLISECONDS, new SynchronousQueue<Runnable>());
52 >        }
53 >        protected void beforeExecute(Thread t, Runnable r) {
54 >            beforeCalled.countDown();
55 >        }
56 >        protected void afterExecute(Runnable r, Throwable t) {
57 >            afterCalled.countDown();
58 >        }
59 >        protected void terminated() {
60 >            terminatedCalled.countDown();
61 >        }
62 >
63 >        public boolean beforeCalled() {
64 >            return beforeCalled.getCount() == 0;
65 >        }
66 >        public boolean afterCalled() {
67 >            return afterCalled.getCount() == 0;
68 >        }
69 >        public boolean terminatedCalled() {
70 >            return terminatedCalled.getCount() == 0;
71 >        }
72 >    }
73 >
74 >    static class FailingThreadFactory implements ThreadFactory {
75 >        int calls = 0;
76 >        public Thread newThread(Runnable r) {
77 >            if (++calls > 1) return null;
78 >            return new Thread(r);
79 >        }
80 >    }
81 >
82      /**
83 <     * For use as ThreadFactory in constructors
83 >     * execute successfully executes a runnable
84       */
85 <    static class MyThreadFactory implements ThreadFactory{
86 <        public Thread newThread(Runnable r){
87 <            return new Thread(r);
88 <        }  
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      /**
100 <     * For use as RejectedExecutionHandler in constructors
100 >     * getActiveCount increases but doesn't overestimate, when a
101 >     * thread becomes active
102       */
103 <    static class MyREHandler implements RejectedExecutionHandler{
104 <        public void rejectedExecution(Runnable r, ThreadPoolExecutor executor){}
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 <
123 >
124      /**
125 <     *   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, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, 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(SMALL_DELAY_MS);
140 <        } catch(InterruptedException e){
141 <            fail("unexpected exception");
142 <        }
143 <        joinPool(one);
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 >     * prestartAllCoreThreads starts all corePoolSize threads
152 >     */
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 <     *   getActiveCount gives correct values
437 >     * awaitTermination on a non-shutdown pool times out
438       */
439 <    public void testGetActiveCount(){
440 <        ThreadPoolExecutor two = new ThreadPoolExecutor(2, 2, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
441 <        assertEquals(0, two.getActiveCount());
442 <        two.execute(new MediumRunnable());
443 <        try{
444 <            Thread.sleep(SHORT_DELAY_MS);
445 <        } catch(Exception e){
446 <            fail("unexpected exception");
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          }
70        assertEquals(1, two.getActiveCount());
71        joinPool(two);
466      }
467 <    
467 >
468      /**
469 <     *   getCompleteTaskCount gives correct values
469 >     * isTerminated is false before termination, true after
470       */
471 <    public void testGetCompletedTaskCount(){
472 <        ThreadPoolExecutor two = new ThreadPoolExecutor(2, 2, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
473 <        assertEquals(0, two.getCompletedTaskCount());
474 <        two.execute(new ShortRunnable());
475 <        try{
476 <            Thread.sleep(MEDIUM_DELAY_MS);
477 <        } catch(Exception e){
478 <            fail("unexpected exception");
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          }
86        assertEquals(1, two.getCompletedTaskCount());
87        two.shutdown();
88        joinPool(two);
494      }
495 <    
495 >
496      /**
497 <     *   getCorePoolSize gives correct values
497 >     * isTerminating is not true when running or when terminated
498       */
499 <    public void testGetCorePoolSize(){
500 <        ThreadPoolExecutor one = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
501 <        assertEquals(1, one.getCorePoolSize());
502 <        joinPool(one);
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 <    
523 >
524      /**
525 <     *   getKeepAliveTime gives correct values
525 >     * getQueue returns the work queue, which contains queued tasks
526       */
527 <    public void testGetKeepAliveTime(){
528 <        ThreadPoolExecutor two = new ThreadPoolExecutor(2, 2, 1000, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
529 <        assertEquals(1, two.getKeepAliveTime(TimeUnit.SECONDS));
530 <        joinPool(two);
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 <    
556 >
557      /**
558 <     *   getLargestPoolSize gives correct values
558 >     * remove(task) removes queued task, and fails to remove active task
559       */
560 <    public void testGetLargestPoolSize(){
561 <        ThreadPoolExecutor two = new ThreadPoolExecutor(2, 2, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
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 >
592 >    /**
593 >     * purge removes cancelled tasks from the queue
594 >     */
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.getLargestPoolSize());
660 <            two.execute(new MediumRunnable());
661 <            two.execute(new MediumRunnable());
662 <            Thread.sleep(SHORT_DELAY_MS);
663 <            assertEquals(2, two.getLargestPoolSize());
664 <        } catch(Exception e){
665 <            fail("unexpected exception");
666 <        }
667 <        joinPool(two);
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 <    
671 >
672 >    // Exception Tests
673 >
674      /**
675 <     *   getMaximumPoolSize gives correct values
675 >     * Constructor throws if corePoolSize argument is less than zero
676       */
677 <    public void testGetMaximumPoolSize(){
678 <        ThreadPoolExecutor two = new ThreadPoolExecutor(2, 2, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
679 <        assertEquals(2, two.getMaximumPoolSize());
680 <        joinPool(two);
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 <    
684 >
685      /**
686 <     *   getPoolSize gives correct values
686 >     * Constructor throws if maximumPoolSize is less than zero
687       */
688 <    public void testGetPoolSize(){
689 <        ThreadPoolExecutor one = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
690 <        assertEquals(0, one.getPoolSize());
691 <        one.execute(new MediumRunnable());
692 <        assertEquals(1, one.getPoolSize());
693 <        joinPool(one);
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 <    
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 <     *   getTaskCount gives correct values
777 >     * Constructor throws if keepAliveTime is less than zero
778       */
779 <    public void testGetTaskCount(){
150 <        ThreadPoolExecutor one = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
779 >    public void testConstructor9() {
780          try {
781 <            assertEquals(0, one.getTaskCount());
782 <            for(int i = 0; i < 5; i++)
783 <                one.execute(new MediumRunnable());
784 <            Thread.sleep(SHORT_DELAY_MS);
785 <            assertEquals(5, one.getTaskCount());
157 <        } catch(Exception e){
158 <            fail("unexpected exception");
159 <        }
160 <        joinPool(one);
781 >            new ThreadPoolExecutor(1, 2, -1L, SECONDS,
782 >                                   new ArrayBlockingQueue<Runnable>(10),
783 >                                   new SimpleThreadFactory());
784 >            shouldThrow();
785 >        } catch (IllegalArgumentException success) {}
786      }
787 <    
787 >
788      /**
789 <     *   isShutDown gives correct values
789 >     * Constructor throws if corePoolSize is greater than the maximumPoolSize
790       */
791 <    public void testIsShutdown(){
792 <        
793 <        ThreadPoolExecutor one = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
794 <        assertFalse(one.isShutdown());
795 <        one.shutdown();
796 <        assertTrue(one.isShutdown());
797 <        joinPool(one);
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  
175        
800      /**
801 <     *   isTerminated gives correct values
178 <     *  Makes sure termination does not take an innapropriate
179 <     *  amount of time
801 >     * Constructor throws if workQueue is set to null
802       */
803 <    public void testIsTerminated(){
182 <        ThreadPoolExecutor one = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
803 >    public void testConstructorNullPointerException2() {
804          try {
805 <            one.execute(new MediumRunnable());
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 >
1069 >    /**
1070 >     * submit(runnable) throws RejectedExecutionException if saturated.
1071 >     */
1072 >    public void testSaturatedSubmitRunnable() {
1073 >        final 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 >            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 >            done.countDown();
1094 >            joinPool(p);
1095 >        }
1096 >    }
1097 >
1098 >    /**
1099 >     * submit(callable) throws RejectedExecutionException if saturated.
1100 >     */
1101 >    public void testSaturatedSubmitCallable() {
1102 >        final 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 >            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 <            one.shutdown();
1122 >            done.countDown();
1123 >            joinPool(p);
1124          }
188        try {
189            assertTrue(one.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
190            assertTrue(one.isTerminated());
191        } catch(Exception e){
192            fail("unexpected exception");
193        }      
1125      }
1126  
1127      /**
1128 <     *   purge correctly removes cancelled tasks
198 <     *  from the queue
1128 >     * executor using CallerRunsPolicy runs task if saturated.
1129       */
1130 <    public void testPurge(){
1131 <        ThreadPoolExecutor one = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1132 <        CancellableTask[] tasks = new CancellableTask[5];
1133 <        for(int i = 0; i < 5; i++){
1134 <            tasks[i] = new CancellableTask(new MediumPossiblyInterruptedRunnable());
1135 <            one.execute(tasks[i]);
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          }
207        tasks[4].cancel(true);
208        tasks[3].cancel(true);
209        one.purge();
210        long count = one.getTaskCount();
211        assertTrue(count >= 2 && count < 5);
212        joinPool(one);
1154      }
1155  
1156      /**
1157 <     *   shutDownNow returns a list
1158 <     *  containing the correct number of elements
1157 >     * executor using DiscardPolicy drops task if saturated.
1158 >     */
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 testShutDownNow(){
1187 <        ThreadPoolExecutor one = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1188 <        List l;
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 >        final 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 >        final ThreadPoolExecutor p =
1253 >            new ThreadPoolExecutor(1, 1,
1254 >                                   LONG_DELAY_MS, MILLISECONDS,
1255 >                                   new ArrayBlockingQueue<Runnable>(1),
1256 >                                   new ThreadPoolExecutor.DiscardPolicy());
1257 >
1258 >        try { p.shutdown(); } catch (SecurityException ok) { return; }
1259 >        try (PoolCleaner cleaner = cleaner(p)) {
1260 >            TrackedNoOpRunnable r = new TrackedNoOpRunnable();
1261 >            p.execute(r);
1262 >            assertFalse(r.done);
1263 >        }
1264 >    }
1265 >
1266 >    /**
1267 >     * execute using DiscardOldestPolicy drops task on shutdown
1268 >     */
1269 >    public void testDiscardOldestOnShutdown() {
1270 >        final ThreadPoolExecutor p =
1271 >            new ThreadPoolExecutor(1, 1,
1272 >                                   LONG_DELAY_MS, MILLISECONDS,
1273 >                                   new ArrayBlockingQueue<Runnable>(1),
1274 >                                   new ThreadPoolExecutor.DiscardOldestPolicy());
1275 >
1276 >        try { p.shutdown(); } catch (SecurityException ok) { return; }
1277 >        try (PoolCleaner cleaner = cleaner(p)) {
1278 >            TrackedNoOpRunnable r = new TrackedNoOpRunnable();
1279 >            p.execute(r);
1280 >            assertFalse(r.done);
1281 >        }
1282 >    }
1283 >
1284 >    /**
1285 >     * execute(null) throws NPE
1286 >     */
1287 >    public void testExecuteNull() {
1288 >        final ThreadPoolExecutor p =
1289 >            new ThreadPoolExecutor(1, 2,
1290 >                                   1L, SECONDS,
1291 >                                   new ArrayBlockingQueue<Runnable>(10));
1292 >        try (PoolCleaner cleaner = cleaner(p)) {
1293 >            try {
1294 >                p.execute(null);
1295 >                shouldThrow();
1296 >            } catch (NullPointerException success) {}
1297 >        }
1298 >    }
1299 >
1300 >    /**
1301 >     * setCorePoolSize of negative value throws IllegalArgumentException
1302 >     */
1303 >    public void testCorePoolSizeIllegalArgumentException() {
1304 >        final ThreadPoolExecutor p =
1305 >            new ThreadPoolExecutor(1, 2,
1306 >                                   LONG_DELAY_MS, MILLISECONDS,
1307 >                                   new ArrayBlockingQueue<Runnable>(10));
1308          try {
1309 <            for(int i = 0; i < 5; i++)
1310 <                one.execute(new MediumPossiblyInterruptedRunnable());
1309 >            p.setCorePoolSize(-1);
1310 >            shouldThrow();
1311 >        } catch (IllegalArgumentException success) {
1312 >        } finally {
1313 >            try { p.shutdown(); } catch (SecurityException ok) { return; }
1314          }
1315 <        finally {
1316 <            l = one.shutdownNow();
1315 >        joinPool(p);
1316 >    }
1317 >
1318 >    /**
1319 >     * setMaximumPoolSize(int) throws IllegalArgumentException if
1320 >     * given a value less the core pool size
1321 >     */
1322 >    public void testMaximumPoolSizeIllegalArgumentException() {
1323 >        final ThreadPoolExecutor p =
1324 >            new ThreadPoolExecutor(2, 3,
1325 >                                   LONG_DELAY_MS, MILLISECONDS,
1326 >                                   new ArrayBlockingQueue<Runnable>(10));
1327 >        try {
1328 >            p.setMaximumPoolSize(1);
1329 >            shouldThrow();
1330 >        } catch (IllegalArgumentException success) {
1331 >        } finally {
1332 >            try { p.shutdown(); } catch (SecurityException ok) { return; }
1333          }
1334 <        assertTrue(one.isShutdown());
230 <        assertTrue(l.size() <= 4);
1334 >        joinPool(p);
1335      }
1336  
1337 <    // Exception Tests
1338 <    
1337 >    /**
1338 >     * setMaximumPoolSize throws IllegalArgumentException
1339 >     * if given a negative value
1340 >     */
1341 >    public void testMaximumPoolSizeIllegalArgumentException2() {
1342 >        final ThreadPoolExecutor p =
1343 >            new ThreadPoolExecutor(2, 3,
1344 >                                   LONG_DELAY_MS, MILLISECONDS,
1345 >                                   new ArrayBlockingQueue<Runnable>(10));
1346 >        try {
1347 >            p.setMaximumPoolSize(-1);
1348 >            shouldThrow();
1349 >        } catch (IllegalArgumentException success) {
1350 >        } finally {
1351 >            try { p.shutdown(); } catch (SecurityException ok) { return; }
1352 >        }
1353 >        joinPool(p);
1354 >    }
1355  
1356 <    /** Throws if corePoolSize argument is less than zero */
1357 <    public void testConstructor1() {
1358 <        try{
1359 <            new ThreadPoolExecutor(-1,1,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1360 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1356 >    /**
1357 >     * Configuration changes that allow core pool size greater than
1358 >     * max pool size result in IllegalArgumentException.
1359 >     */
1360 >    public void testPoolSizeInvariants() {
1361 >        final ThreadPoolExecutor p =
1362 >            new ThreadPoolExecutor(1, 1,
1363 >                                   LONG_DELAY_MS, MILLISECONDS,
1364 >                                   new ArrayBlockingQueue<Runnable>(10));
1365 >        for (int s = 1; s < 5; s++) {
1366 >            p.setMaximumPoolSize(s);
1367 >            p.setCorePoolSize(s);
1368 >            try {
1369 >                p.setMaximumPoolSize(s - 1);
1370 >                shouldThrow();
1371 >            } catch (IllegalArgumentException success) {}
1372 >            assertEquals(s, p.getCorePoolSize());
1373 >            assertEquals(s, p.getMaximumPoolSize());
1374 >            try {
1375 >                p.setCorePoolSize(s + 1);
1376 >                shouldThrow();
1377 >            } catch (IllegalArgumentException success) {}
1378 >            assertEquals(s, p.getCorePoolSize());
1379 >            assertEquals(s, p.getMaximumPoolSize());
1380          }
1381 <        catch (IllegalArgumentException success){}
1381 >        joinPool(p);
1382      }
1383 <    
1384 <    /** Throws if maximumPoolSize is less than zero */
1385 <    public void testConstructor2() {
1386 <        try{
1387 <            new ThreadPoolExecutor(1,-1,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1388 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1383 >
1384 >    /**
1385 >     * setKeepAliveTime throws IllegalArgumentException
1386 >     * when given a negative value
1387 >     */
1388 >    public void testKeepAliveTimeIllegalArgumentException() {
1389 >        final ThreadPoolExecutor p =
1390 >            new ThreadPoolExecutor(2, 3,
1391 >                                   LONG_DELAY_MS, MILLISECONDS,
1392 >                                   new ArrayBlockingQueue<Runnable>(10));
1393 >        try {
1394 >            p.setKeepAliveTime(-1,MILLISECONDS);
1395 >            shouldThrow();
1396 >        } catch (IllegalArgumentException success) {
1397 >        } finally {
1398 >            try { p.shutdown(); } catch (SecurityException ok) { return; }
1399          }
1400 <        catch (IllegalArgumentException success){}
1400 >        joinPool(p);
1401      }
1402 <    
1403 <    /** Throws if maximumPoolSize is equal to zero */
1404 <    public void testConstructor3() {
1405 <        try{
1406 <            new ThreadPoolExecutor(1,0,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1407 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1402 >
1403 >    /**
1404 >     * terminated() is called on termination
1405 >     */
1406 >    public void testTerminated() {
1407 >        ExtendedTPE p = new ExtendedTPE();
1408 >        try { p.shutdown(); } catch (SecurityException ok) { return; }
1409 >        assertTrue(p.terminatedCalled());
1410 >        joinPool(p);
1411 >    }
1412 >
1413 >    /**
1414 >     * beforeExecute and afterExecute are called when executing task
1415 >     */
1416 >    public void testBeforeAfter() throws InterruptedException {
1417 >        ExtendedTPE p = new ExtendedTPE();
1418 >        try {
1419 >            final CountDownLatch done = new CountDownLatch(1);
1420 >            p.execute(new CheckedRunnable() {
1421 >                public void realRun() {
1422 >                    done.countDown();
1423 >                }});
1424 >            await(p.afterCalled);
1425 >            assertEquals(0, done.getCount());
1426 >            assertTrue(p.afterCalled());
1427 >            assertTrue(p.beforeCalled());
1428 >            try { p.shutdown(); } catch (SecurityException ok) { return; }
1429 >        } finally {
1430 >            joinPool(p);
1431          }
260        catch (IllegalArgumentException success){}
1432      }
1433  
1434 <    /** Throws if keepAliveTime is less than zero */
1435 <    public void testConstructor4() {
1436 <        try{
1437 <            new ThreadPoolExecutor(1,2,-1L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1438 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1434 >    /**
1435 >     * completed submit of callable returns result
1436 >     */
1437 >    public void testSubmitCallable() throws Exception {
1438 >        ExecutorService e =
1439 >            new ThreadPoolExecutor(2, 2,
1440 >                                   LONG_DELAY_MS, MILLISECONDS,
1441 >                                   new ArrayBlockingQueue<Runnable>(10));
1442 >        try {
1443 >            Future<String> future = e.submit(new StringTask());
1444 >            String result = future.get();
1445 >            assertSame(TEST_STRING, result);
1446 >        } finally {
1447 >            joinPool(e);
1448          }
269        catch (IllegalArgumentException success){}
1449      }
1450  
1451 <    /** Throws if corePoolSize is greater than the maximumPoolSize */
1452 <    public void testConstructor5() {
1453 <        try{
1454 <            new ThreadPoolExecutor(2,1,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1455 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1451 >    /**
1452 >     * completed submit of runnable returns successfully
1453 >     */
1454 >    public void testSubmitRunnable() throws Exception {
1455 >        ExecutorService e =
1456 >            new ThreadPoolExecutor(2, 2,
1457 >                                   LONG_DELAY_MS, MILLISECONDS,
1458 >                                   new ArrayBlockingQueue<Runnable>(10));
1459 >        try {
1460 >            Future<?> future = e.submit(new NoOpRunnable());
1461 >            future.get();
1462 >            assertTrue(future.isDone());
1463 >        } finally {
1464 >            joinPool(e);
1465          }
278        catch (IllegalArgumentException success){}
1466      }
1467 <        
1468 <    /** Throws if workQueue is set to null */
1469 <    public void testNullPointerException() {
1470 <        try{
1471 <            new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,null);
1472 <            fail("ThreadPoolExecutor constructor should throw a NullPointerException");        
1467 >
1468 >    /**
1469 >     * completed submit of (runnable, result) returns result
1470 >     */
1471 >    public void testSubmitRunnable2() throws Exception {
1472 >        ExecutorService e =
1473 >            new ThreadPoolExecutor(2, 2,
1474 >                                   LONG_DELAY_MS, MILLISECONDS,
1475 >                                   new ArrayBlockingQueue<Runnable>(10));
1476 >        try {
1477 >            Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING);
1478 >            String result = future.get();
1479 >            assertSame(TEST_STRING, result);
1480 >        } finally {
1481 >            joinPool(e);
1482          }
287        catch (NullPointerException success){}  
1483      }
289    
1484  
1485 <    
1486 <    /** Throws if corePoolSize argument is less than zero */
1487 <    public void testConstructor6() {
1488 <        try{
1489 <            new ThreadPoolExecutor(-1,1,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory());
1490 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1491 <        } catch (IllegalArgumentException success){}
1485 >    /**
1486 >     * invokeAny(null) throws NPE
1487 >     */
1488 >    public void testInvokeAny1() throws Exception {
1489 >        ExecutorService e =
1490 >            new ThreadPoolExecutor(2, 2,
1491 >                                   LONG_DELAY_MS, MILLISECONDS,
1492 >                                   new ArrayBlockingQueue<Runnable>(10));
1493 >        try {
1494 >            e.invokeAny(null);
1495 >            shouldThrow();
1496 >        } catch (NullPointerException success) {
1497 >        } finally {
1498 >            joinPool(e);
1499 >        }
1500      }
1501 <    
1502 <    /** Throws if maximumPoolSize is less than zero */
1503 <    public void testConstructor7() {
1504 <        try{
1505 <            new ThreadPoolExecutor(1,-1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory());
1506 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1501 >
1502 >    /**
1503 >     * invokeAny(empty collection) throws IAE
1504 >     */
1505 >    public void testInvokeAny2() throws Exception {
1506 >        ExecutorService e =
1507 >            new ThreadPoolExecutor(2, 2,
1508 >                                   LONG_DELAY_MS, MILLISECONDS,
1509 >                                   new ArrayBlockingQueue<Runnable>(10));
1510 >        try {
1511 >            e.invokeAny(new ArrayList<Callable<String>>());
1512 >            shouldThrow();
1513 >        } catch (IllegalArgumentException success) {
1514 >        } finally {
1515 >            joinPool(e);
1516          }
306        catch (IllegalArgumentException success){}
1517      }
1518  
1519 <    /** Throws if maximumPoolSize is equal to zero */
1520 <    public void testConstructor8() {
1521 <        try{
1522 <            new ThreadPoolExecutor(1,0,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory());
1523 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1519 >    /**
1520 >     * invokeAny(c) throws NPE if c has null elements
1521 >     */
1522 >    public void testInvokeAny3() throws Exception {
1523 >        final CountDownLatch latch = new CountDownLatch(1);
1524 >        final ExecutorService e =
1525 >            new ThreadPoolExecutor(2, 2,
1526 >                                   LONG_DELAY_MS, MILLISECONDS,
1527 >                                   new ArrayBlockingQueue<Runnable>(10));
1528 >        List<Callable<String>> l = new ArrayList<Callable<String>>();
1529 >        l.add(latchAwaitingStringTask(latch));
1530 >        l.add(null);
1531 >        try {
1532 >            e.invokeAny(l);
1533 >            shouldThrow();
1534 >        } catch (NullPointerException success) {
1535 >        } finally {
1536 >            latch.countDown();
1537 >            joinPool(e);
1538          }
315        catch (IllegalArgumentException success){}
1539      }
1540  
1541 <    /** Throws if keepAliveTime is less than zero */
1542 <    public void testConstructor9() {
1543 <        try{
1544 <            new ThreadPoolExecutor(1,2,-1L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory());
1545 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1541 >    /**
1542 >     * invokeAny(c) throws ExecutionException if no task completes
1543 >     */
1544 >    public void testInvokeAny4() throws Exception {
1545 >        ExecutorService e =
1546 >            new ThreadPoolExecutor(2, 2,
1547 >                                   LONG_DELAY_MS, MILLISECONDS,
1548 >                                   new ArrayBlockingQueue<Runnable>(10));
1549 >        List<Callable<String>> l = new ArrayList<Callable<String>>();
1550 >        l.add(new NPETask());
1551 >        try {
1552 >            e.invokeAny(l);
1553 >            shouldThrow();
1554 >        } catch (ExecutionException success) {
1555 >            assertTrue(success.getCause() instanceof NullPointerException);
1556 >        } finally {
1557 >            joinPool(e);
1558          }
324        catch (IllegalArgumentException success){}
1559      }
1560  
1561 <    /** Throws if corePoolSize is greater than the maximumPoolSize */
1562 <    public void testConstructor10() {
1563 <        try{
1564 <            new ThreadPoolExecutor(2,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory());
1565 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1561 >    /**
1562 >     * invokeAny(c) returns result of some task
1563 >     */
1564 >    public void testInvokeAny5() throws Exception {
1565 >        ExecutorService e =
1566 >            new ThreadPoolExecutor(2, 2,
1567 >                                   LONG_DELAY_MS, MILLISECONDS,
1568 >                                   new ArrayBlockingQueue<Runnable>(10));
1569 >        try {
1570 >            List<Callable<String>> l = new ArrayList<Callable<String>>();
1571 >            l.add(new StringTask());
1572 >            l.add(new StringTask());
1573 >            String result = e.invokeAny(l);
1574 >            assertSame(TEST_STRING, result);
1575 >        } finally {
1576 >            joinPool(e);
1577          }
333        catch (IllegalArgumentException success){}
1578      }
1579  
1580 <    /** Throws if workQueue is set to null */
1581 <    public void testNullPointerException2() {
1582 <        try{
1583 <            new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,null,new MyThreadFactory());
1584 <            fail("ThreadPoolExecutor constructor should throw a NullPointerException");        
1580 >    /**
1581 >     * invokeAll(null) throws NPE
1582 >     */
1583 >    public void testInvokeAll1() throws Exception {
1584 >        ExecutorService e =
1585 >            new ThreadPoolExecutor(2, 2,
1586 >                                   LONG_DELAY_MS, MILLISECONDS,
1587 >                                   new ArrayBlockingQueue<Runnable>(10));
1588 >        try {
1589 >            e.invokeAll(null);
1590 >            shouldThrow();
1591 >        } catch (NullPointerException success) {
1592 >        } finally {
1593 >            joinPool(e);
1594          }
342        catch (NullPointerException success){}  
1595      }
1596  
1597 <    /** Throws if threadFactory is set to null */
1598 <    public void testNullPointerException3() {
1599 <        try{
1600 <            ThreadFactory f = null;
1601 <            new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10),f);
1602 <            fail("ThreadPoolExecutor constructor should throw a NullPointerException");        
1597 >    /**
1598 >     * invokeAll(empty collection) returns empty collection
1599 >     */
1600 >    public void testInvokeAll2() throws InterruptedException {
1601 >        ExecutorService e =
1602 >            new ThreadPoolExecutor(2, 2,
1603 >                                   LONG_DELAY_MS, MILLISECONDS,
1604 >                                   new ArrayBlockingQueue<Runnable>(10));
1605 >        try {
1606 >            List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>());
1607 >            assertTrue(r.isEmpty());
1608 >        } finally {
1609 >            joinPool(e);
1610          }
352        catch (NullPointerException success){}  
1611      }
1612 <
1613 <    
1614 <    /** Throws if corePoolSize argument is less than zero */
1615 <    public void testConstructor11() {
1616 <        try{
1617 <            new ThreadPoolExecutor(-1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyREHandler());
1618 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1612 >
1613 >    /**
1614 >     * invokeAll(c) throws NPE if c has null elements
1615 >     */
1616 >    public void testInvokeAll3() throws Exception {
1617 >        ExecutorService e =
1618 >            new ThreadPoolExecutor(2, 2,
1619 >                                   LONG_DELAY_MS, MILLISECONDS,
1620 >                                   new ArrayBlockingQueue<Runnable>(10));
1621 >        List<Callable<String>> l = new ArrayList<Callable<String>>();
1622 >        l.add(new StringTask());
1623 >        l.add(null);
1624 >        try {
1625 >            e.invokeAll(l);
1626 >            shouldThrow();
1627 >        } catch (NullPointerException success) {
1628 >        } finally {
1629 >            joinPool(e);
1630          }
362        catch (IllegalArgumentException success){}
1631      }
1632  
1633 <    /** Throws if maximumPoolSize is less than zero */
1634 <    public void testConstructor12() {
1635 <        try{
1636 <            new ThreadPoolExecutor(1,-1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyREHandler());
1637 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1633 >    /**
1634 >     * get of element of invokeAll(c) throws exception on failed task
1635 >     */
1636 >    public void testInvokeAll4() throws Exception {
1637 >        ExecutorService e =
1638 >            new ThreadPoolExecutor(2, 2,
1639 >                                   LONG_DELAY_MS, MILLISECONDS,
1640 >                                   new ArrayBlockingQueue<Runnable>(10));
1641 >        try {
1642 >            List<Callable<String>> l = new ArrayList<Callable<String>>();
1643 >            l.add(new NPETask());
1644 >            List<Future<String>> futures = e.invokeAll(l);
1645 >            assertEquals(1, futures.size());
1646 >            try {
1647 >                futures.get(0).get();
1648 >                shouldThrow();
1649 >            } catch (ExecutionException success) {
1650 >                assertTrue(success.getCause() instanceof NullPointerException);
1651 >            }
1652 >        } finally {
1653 >            joinPool(e);
1654          }
371        catch (IllegalArgumentException success){}
1655      }
1656  
1657 <    /** Throws if maximumPoolSize is equal to zero */
1658 <    public void testConstructor13() {
1659 <        try{
1660 <            new ThreadPoolExecutor(1,0,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyREHandler());
1661 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1657 >    /**
1658 >     * invokeAll(c) returns results of all completed tasks
1659 >     */
1660 >    public void testInvokeAll5() throws Exception {
1661 >        ExecutorService e =
1662 >            new ThreadPoolExecutor(2, 2,
1663 >                                   LONG_DELAY_MS, MILLISECONDS,
1664 >                                   new ArrayBlockingQueue<Runnable>(10));
1665 >        try {
1666 >            List<Callable<String>> l = new ArrayList<Callable<String>>();
1667 >            l.add(new StringTask());
1668 >            l.add(new StringTask());
1669 >            List<Future<String>> futures = e.invokeAll(l);
1670 >            assertEquals(2, futures.size());
1671 >            for (Future<String> future : futures)
1672 >                assertSame(TEST_STRING, future.get());
1673 >        } finally {
1674 >            joinPool(e);
1675          }
380        catch (IllegalArgumentException success){}
1676      }
1677  
1678 <    /** Throws if keepAliveTime is less than zero */
1679 <    public void testConstructor14() {
1680 <        try{
1681 <            new ThreadPoolExecutor(1,2,-1L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyREHandler());
1682 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1678 >    /**
1679 >     * timed invokeAny(null) throws NPE
1680 >     */
1681 >    public void testTimedInvokeAny1() throws Exception {
1682 >        ExecutorService e =
1683 >            new ThreadPoolExecutor(2, 2,
1684 >                                   LONG_DELAY_MS, MILLISECONDS,
1685 >                                   new ArrayBlockingQueue<Runnable>(10));
1686 >        try {
1687 >            e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS);
1688 >            shouldThrow();
1689 >        } catch (NullPointerException success) {
1690 >        } finally {
1691 >            joinPool(e);
1692          }
389        catch (IllegalArgumentException success){}
1693      }
1694  
1695 <    /** Throws if corePoolSize is greater than the maximumPoolSize */
1696 <    public void testConstructor15() {
1697 <        try{
1698 <            new ThreadPoolExecutor(2,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyREHandler());
1699 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1695 >    /**
1696 >     * timed invokeAny(,,null) throws NPE
1697 >     */
1698 >    public void testTimedInvokeAnyNullTimeUnit() throws Exception {
1699 >        ExecutorService e =
1700 >            new ThreadPoolExecutor(2, 2,
1701 >                                   LONG_DELAY_MS, MILLISECONDS,
1702 >                                   new ArrayBlockingQueue<Runnable>(10));
1703 >        List<Callable<String>> l = new ArrayList<Callable<String>>();
1704 >        l.add(new StringTask());
1705 >        try {
1706 >            e.invokeAny(l, MEDIUM_DELAY_MS, null);
1707 >            shouldThrow();
1708 >        } catch (NullPointerException success) {
1709 >        } finally {
1710 >            joinPool(e);
1711          }
398        catch (IllegalArgumentException success){}
1712      }
1713  
1714 <    /** Throws if workQueue is set to null */
1715 <    public void testNullPointerException4() {
1716 <        try{
1717 <            new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,null,new MyREHandler());
1718 <            fail("ThreadPoolExecutor constructor should throw a NullPointerException");        
1714 >    /**
1715 >     * timed invokeAny(empty collection) throws IAE
1716 >     */
1717 >    public void testTimedInvokeAny2() throws Exception {
1718 >        ExecutorService e =
1719 >            new ThreadPoolExecutor(2, 2,
1720 >                                   LONG_DELAY_MS, MILLISECONDS,
1721 >                                   new ArrayBlockingQueue<Runnable>(10));
1722 >        try {
1723 >            e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
1724 >            shouldThrow();
1725 >        } catch (IllegalArgumentException success) {
1726 >        } finally {
1727 >            joinPool(e);
1728          }
407        catch (NullPointerException success){}  
1729      }
1730  
1731 <    /** Throws if handler is set to null */
1732 <    public void testNullPointerException5() {
1733 <        try{
1734 <            RejectedExecutionHandler r = null;
1735 <            new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10),r);
1736 <            fail("ThreadPoolExecutor constructor should throw a NullPointerException");        
1731 >    /**
1732 >     * timed invokeAny(c) throws NPE if c has null elements
1733 >     */
1734 >    public void testTimedInvokeAny3() throws Exception {
1735 >        final CountDownLatch latch = new CountDownLatch(1);
1736 >        final ExecutorService e =
1737 >            new ThreadPoolExecutor(2, 2,
1738 >                                   LONG_DELAY_MS, MILLISECONDS,
1739 >                                   new ArrayBlockingQueue<Runnable>(10));
1740 >        List<Callable<String>> l = new ArrayList<Callable<String>>();
1741 >        l.add(latchAwaitingStringTask(latch));
1742 >        l.add(null);
1743 >        try {
1744 >            e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1745 >            shouldThrow();
1746 >        } catch (NullPointerException success) {
1747 >        } finally {
1748 >            latch.countDown();
1749 >            joinPool(e);
1750          }
417        catch (NullPointerException success){}  
1751      }
1752  
1753 <    
1754 <    /** Throws if corePoolSize argument is less than zero */
1755 <    public void testConstructor16() {
1756 <        try{
1757 <            new ThreadPoolExecutor(-1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory(),new MyREHandler());
1758 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1753 >    /**
1754 >     * timed invokeAny(c) throws ExecutionException if no task completes
1755 >     */
1756 >    public void testTimedInvokeAny4() throws Exception {
1757 >        ExecutorService e =
1758 >            new ThreadPoolExecutor(2, 2,
1759 >                                   LONG_DELAY_MS, MILLISECONDS,
1760 >                                   new ArrayBlockingQueue<Runnable>(10));
1761 >        List<Callable<String>> l = new ArrayList<Callable<String>>();
1762 >        l.add(new NPETask());
1763 >        try {
1764 >            e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1765 >            shouldThrow();
1766 >        } catch (ExecutionException success) {
1767 >            assertTrue(success.getCause() instanceof NullPointerException);
1768 >        } finally {
1769 >            joinPool(e);
1770          }
427        catch (IllegalArgumentException success){}
1771      }
1772  
1773 <    /** Throws if maximumPoolSize is less than zero */
1774 <    public void testConstructor17() {
1775 <        try{
1776 <            new ThreadPoolExecutor(1,-1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory(),new MyREHandler());
1777 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1773 >    /**
1774 >     * timed invokeAny(c) returns result of some task
1775 >     */
1776 >    public void testTimedInvokeAny5() throws Exception {
1777 >        ExecutorService e =
1778 >            new ThreadPoolExecutor(2, 2,
1779 >                                   LONG_DELAY_MS, MILLISECONDS,
1780 >                                   new ArrayBlockingQueue<Runnable>(10));
1781 >        try {
1782 >            List<Callable<String>> l = new ArrayList<Callable<String>>();
1783 >            l.add(new StringTask());
1784 >            l.add(new StringTask());
1785 >            String result = e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1786 >            assertSame(TEST_STRING, result);
1787 >        } finally {
1788 >            joinPool(e);
1789          }
436        catch (IllegalArgumentException success){}
1790      }
1791  
1792 <    /** Throws if maximumPoolSize is equal to zero */
1793 <    public void testConstructor18() {
1794 <        try{
1795 <            new ThreadPoolExecutor(1,0,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory(),new MyREHandler());
1796 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1792 >    /**
1793 >     * timed invokeAll(null) throws NPE
1794 >     */
1795 >    public void testTimedInvokeAll1() throws Exception {
1796 >        ExecutorService e =
1797 >            new ThreadPoolExecutor(2, 2,
1798 >                                   LONG_DELAY_MS, MILLISECONDS,
1799 >                                   new ArrayBlockingQueue<Runnable>(10));
1800 >        try {
1801 >            e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS);
1802 >            shouldThrow();
1803 >        } catch (NullPointerException success) {
1804 >        } finally {
1805 >            joinPool(e);
1806          }
445        catch (IllegalArgumentException success){}
1807      }
1808  
1809 <    /** Throws if keepAliveTime is less than zero */
1810 <    public void testConstructor19() {
1811 <        try{
1812 <            new ThreadPoolExecutor(1,2,-1L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory(),new MyREHandler());
1813 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1809 >    /**
1810 >     * timed invokeAll(,,null) throws NPE
1811 >     */
1812 >    public void testTimedInvokeAllNullTimeUnit() throws Exception {
1813 >        ExecutorService e =
1814 >            new ThreadPoolExecutor(2, 2,
1815 >                                   LONG_DELAY_MS, MILLISECONDS,
1816 >                                   new ArrayBlockingQueue<Runnable>(10));
1817 >        List<Callable<String>> l = new ArrayList<Callable<String>>();
1818 >        l.add(new StringTask());
1819 >        try {
1820 >            e.invokeAll(l, MEDIUM_DELAY_MS, null);
1821 >            shouldThrow();
1822 >        } catch (NullPointerException success) {
1823 >        } finally {
1824 >            joinPool(e);
1825          }
454        catch (IllegalArgumentException success){}
1826      }
1827  
1828 <    /** Throws if corePoolSize is greater than the maximumPoolSize */
1829 <    public void testConstructor20() {
1830 <        try{
1831 <            new ThreadPoolExecutor(2,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory(),new MyREHandler());
1832 <            fail("ThreadPoolExecutor constructor should throw an IllegalArgumentException");            
1828 >    /**
1829 >     * timed invokeAll(empty collection) returns empty collection
1830 >     */
1831 >    public void testTimedInvokeAll2() throws InterruptedException {
1832 >        ExecutorService e =
1833 >            new ThreadPoolExecutor(2, 2,
1834 >                                   LONG_DELAY_MS, MILLISECONDS,
1835 >                                   new ArrayBlockingQueue<Runnable>(10));
1836 >        try {
1837 >            List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
1838 >            assertTrue(r.isEmpty());
1839 >        } finally {
1840 >            joinPool(e);
1841          }
463        catch (IllegalArgumentException success){}
1842      }
1843  
1844 <    /** Throws if workQueue is set to null */
1845 <    public void testNullPointerException6() {
1846 <        try{
1847 <            new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,null,new MyThreadFactory(),new MyREHandler());
1848 <            fail("ThreadPoolExecutor constructor should throw a NullPointerException");        
1844 >    /**
1845 >     * timed invokeAll(c) throws NPE if c has null elements
1846 >     */
1847 >    public void testTimedInvokeAll3() throws Exception {
1848 >        ExecutorService e =
1849 >            new ThreadPoolExecutor(2, 2,
1850 >                                   LONG_DELAY_MS, MILLISECONDS,
1851 >                                   new ArrayBlockingQueue<Runnable>(10));
1852 >        List<Callable<String>> l = new ArrayList<Callable<String>>();
1853 >        l.add(new StringTask());
1854 >        l.add(null);
1855 >        try {
1856 >            e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1857 >            shouldThrow();
1858 >        } catch (NullPointerException success) {
1859 >        } finally {
1860 >            joinPool(e);
1861          }
472        catch (NullPointerException success){}  
1862      }
1863  
1864 <    /** Throws if handler is set to null */
1865 <    public void testNullPointerException7() {
1866 <        try{
1867 <            RejectedExecutionHandler r = null;
1868 <            new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory(),r);
1869 <            fail("ThreadPoolExecutor constructor should throw a NullPointerException");        
1864 >    /**
1865 >     * get of element of invokeAll(c) throws exception on failed task
1866 >     */
1867 >    public void testTimedInvokeAll4() throws Exception {
1868 >        ExecutorService e =
1869 >            new ThreadPoolExecutor(2, 2,
1870 >                                   LONG_DELAY_MS, MILLISECONDS,
1871 >                                   new ArrayBlockingQueue<Runnable>(10));
1872 >        List<Callable<String>> l = new ArrayList<Callable<String>>();
1873 >        l.add(new NPETask());
1874 >        List<Future<String>> futures =
1875 >            e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1876 >        assertEquals(1, futures.size());
1877 >        try {
1878 >            futures.get(0).get();
1879 >            shouldThrow();
1880 >        } catch (ExecutionException success) {
1881 >            assertTrue(success.getCause() instanceof NullPointerException);
1882 >        } finally {
1883 >            joinPool(e);
1884 >        }
1885 >    }
1886 >
1887 >    /**
1888 >     * timed invokeAll(c) returns results of all completed tasks
1889 >     */
1890 >    public void testTimedInvokeAll5() throws Exception {
1891 >        ExecutorService e =
1892 >            new ThreadPoolExecutor(2, 2,
1893 >                                   LONG_DELAY_MS, MILLISECONDS,
1894 >                                   new ArrayBlockingQueue<Runnable>(10));
1895 >        try {
1896 >            List<Callable<String>> l = new ArrayList<Callable<String>>();
1897 >            l.add(new StringTask());
1898 >            l.add(new StringTask());
1899 >            List<Future<String>> futures =
1900 >                e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS);
1901 >            assertEquals(2, futures.size());
1902 >            for (Future<String> future : futures)
1903 >                assertSame(TEST_STRING, future.get());
1904 >        } finally {
1905 >            joinPool(e);
1906 >        }
1907 >    }
1908 >
1909 >    /**
1910 >     * timed invokeAll(c) cancels tasks not completed by timeout
1911 >     */
1912 >    public void testTimedInvokeAll6() throws Exception {
1913 >        ExecutorService e =
1914 >            new ThreadPoolExecutor(2, 2,
1915 >                                   LONG_DELAY_MS, MILLISECONDS,
1916 >                                   new ArrayBlockingQueue<Runnable>(10));
1917 >        try {
1918 >            for (long timeout = timeoutMillis();;) {
1919 >                List<Callable<String>> tasks = new ArrayList<>();
1920 >                tasks.add(new StringTask("0"));
1921 >                tasks.add(Executors.callable(new LongPossiblyInterruptedRunnable(), TEST_STRING));
1922 >                tasks.add(new StringTask("2"));
1923 >                long startTime = System.nanoTime();
1924 >                List<Future<String>> futures =
1925 >                    e.invokeAll(tasks, timeout, MILLISECONDS);
1926 >                assertEquals(tasks.size(), futures.size());
1927 >                assertTrue(millisElapsedSince(startTime) >= timeout);
1928 >                for (Future future : futures)
1929 >                    assertTrue(future.isDone());
1930 >                assertTrue(futures.get(1).isCancelled());
1931 >                try {
1932 >                    assertEquals("0", futures.get(0).get());
1933 >                    assertEquals("2", futures.get(2).get());
1934 >                    break;
1935 >                } catch (CancellationException retryWithLongerTimeout) {
1936 >                    timeout *= 2;
1937 >                    if (timeout >= LONG_DELAY_MS / 2)
1938 >                        fail("expected exactly one task to be cancelled");
1939 >                }
1940 >            }
1941 >        } finally {
1942 >            joinPool(e);
1943          }
482        catch (NullPointerException success){}  
1944      }
1945  
1946 <    /** Throws if ThreadFactory is set top null */
1947 <    public void testNullPointerException8() {
1948 <        try{
1949 <            ThreadFactory f = null;
1950 <            new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10),f,new MyREHandler());
1951 <            fail("ThreadPoolExecutor constructor should throw a NullPointerException");        
1946 >    /**
1947 >     * Execution continues if there is at least one thread even if
1948 >     * thread factory fails to create more
1949 >     */
1950 >    public void testFailingThreadFactory() throws InterruptedException {
1951 >        final ExecutorService e =
1952 >            new ThreadPoolExecutor(100, 100,
1953 >                                   LONG_DELAY_MS, MILLISECONDS,
1954 >                                   new LinkedBlockingQueue<Runnable>(),
1955 >                                   new FailingThreadFactory());
1956 >        try {
1957 >            final int TASKS = 100;
1958 >            final CountDownLatch done = new CountDownLatch(TASKS);
1959 >            for (int k = 0; k < TASKS; ++k)
1960 >                e.execute(new CheckedRunnable() {
1961 >                    public void realRun() {
1962 >                        done.countDown();
1963 >                    }});
1964 >            assertTrue(done.await(LONG_DELAY_MS, MILLISECONDS));
1965 >        } finally {
1966 >            joinPool(e);
1967          }
492        catch (NullPointerException successdn8){}  
1968      }
494    
1969  
1970      /**
1971 <     *   execute will throw RejectedExcutionException
498 <     *  ThreadPoolExecutor will throw one when more runnables are
499 <     *  executed then will fit in the Queue.
1971 >     * allowsCoreThreadTimeOut is by default false.
1972       */
1973 <    public void testRejectedExecutionException(){
1974 <        ThreadPoolExecutor tpe = null;
1975 <        try{
1976 <            tpe = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(1));
1977 <        } catch(Exception e){}
1978 <        tpe.shutdown();
1979 <        try{
508 <            tpe.execute(new NoOpRunnable());
509 <            fail("ThreadPoolExecutor - void execute(Runnable) should throw RejectedExecutionException");
510 <        } catch(RejectedExecutionException success){}
511 <        
512 <        joinPool(tpe);
1973 >    public void testAllowsCoreThreadTimeOut() {
1974 >        final ThreadPoolExecutor p =
1975 >            new ThreadPoolExecutor(2, 2,
1976 >                                   1000, MILLISECONDS,
1977 >                                   new ArrayBlockingQueue<Runnable>(10));
1978 >        assertFalse(p.allowsCoreThreadTimeOut());
1979 >        joinPool(p);
1980      }
1981 <    
1981 >
1982      /**
1983 <     *   setCorePoolSize will throw IllegalArgumentException
517 <     *  when given a negative
1983 >     * allowCoreThreadTimeOut(true) causes idle threads to time out
1984       */
1985 <    public void testCorePoolSizeIllegalArgumentException(){
1986 <        ThreadPoolExecutor tpe = null;
1987 <        try{
1988 <            tpe = new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10));
1989 <        } catch(Exception e){}
1990 <        try{
1991 <            tpe.setCorePoolSize(-1);
1992 <            fail("ThreadPoolExecutor - void setCorePoolSize(int) should throw IllegalArgumentException");
1993 <        } catch(IllegalArgumentException success){
1985 >    public void testAllowCoreThreadTimeOut_true() throws Exception {
1986 >        long keepAliveTime = timeoutMillis();
1987 >        final ThreadPoolExecutor p =
1988 >            new ThreadPoolExecutor(2, 10,
1989 >                                   keepAliveTime, MILLISECONDS,
1990 >                                   new ArrayBlockingQueue<Runnable>(10));
1991 >        final CountDownLatch threadStarted = new CountDownLatch(1);
1992 >        try {
1993 >            p.allowCoreThreadTimeOut(true);
1994 >            p.execute(new CheckedRunnable() {
1995 >                public void realRun() {
1996 >                    threadStarted.countDown();
1997 >                    assertEquals(1, p.getPoolSize());
1998 >                }});
1999 >            await(threadStarted);
2000 >            delay(keepAliveTime);
2001 >            long startTime = System.nanoTime();
2002 >            while (p.getPoolSize() > 0
2003 >                   && millisElapsedSince(startTime) < LONG_DELAY_MS)
2004 >                Thread.yield();
2005 >            assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
2006 >            assertEquals(0, p.getPoolSize());
2007          } finally {
2008 <            tpe.shutdown();
2008 >            joinPool(p);
2009          }
2010 <        joinPool(tpe);
532 <    }  
2010 >    }
2011  
534    
2012      /**
2013 <     *   setMaximumPoolSize(int) will throw IllegalArgumentException
2014 <     *  if given a value less the it's actual core pool size
2015 <     */  
2016 <    public void testMaximumPoolSizeIllegalArgumentException(){
2017 <        ThreadPoolExecutor tpe = null;
2018 <        try{
2019 <            tpe = new ThreadPoolExecutor(2,3,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10));
2020 <        } catch(Exception e){}
2021 <        try{
2022 <            tpe.setMaximumPoolSize(1);
2023 <            fail("ThreadPoolExecutor - void setMaximumPoolSize(int) should throw IllegalArgumentException");
2024 <        } catch(IllegalArgumentException success){
2013 >     * allowCoreThreadTimeOut(false) causes idle threads not to time out
2014 >     */
2015 >    public void testAllowCoreThreadTimeOut_false() throws Exception {
2016 >        long keepAliveTime = timeoutMillis();
2017 >        final ThreadPoolExecutor p =
2018 >            new ThreadPoolExecutor(2, 10,
2019 >                                   keepAliveTime, MILLISECONDS,
2020 >                                   new ArrayBlockingQueue<Runnable>(10));
2021 >        final CountDownLatch threadStarted = new CountDownLatch(1);
2022 >        try {
2023 >            p.allowCoreThreadTimeOut(false);
2024 >            p.execute(new CheckedRunnable() {
2025 >                public void realRun() throws InterruptedException {
2026 >                    threadStarted.countDown();
2027 >                    assertTrue(p.getPoolSize() >= 1);
2028 >                }});
2029 >            delay(2 * keepAliveTime);
2030 >            assertTrue(p.getPoolSize() >= 1);
2031          } finally {
2032 <            tpe.shutdown();
2032 >            joinPool(p);
2033          }
551        joinPool(tpe);
2034      }
2035 <    
2035 >
2036      /**
2037 <     *   setMaximumPoolSize will throw IllegalArgumentException
2038 <     *  if given a negative number
2037 >     * execute allows the same task to be submitted multiple times, even
2038 >     * if rejected
2039       */
2040 <    public void testMaximumPoolSizeIllegalArgumentException2(){
2041 <        ThreadPoolExecutor tpe = null;
2042 <        try{
2043 <            tpe = new ThreadPoolExecutor(2,3,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10));
2044 <        } catch(Exception e){}
2045 <        try{
2046 <            tpe.setMaximumPoolSize(-1);
2047 <            fail("ThreadPoolExecutor - void setMaximumPoolSize(int) should throw IllegalArgumentException");
2048 <        } catch(IllegalArgumentException success){
2040 >    public void testRejectedRecycledTask() throws InterruptedException {
2041 >        final int nTasks = 1000;
2042 >        final CountDownLatch done = new CountDownLatch(nTasks);
2043 >        final Runnable recycledTask = new Runnable() {
2044 >            public void run() {
2045 >                done.countDown();
2046 >            }};
2047 >        final ThreadPoolExecutor p =
2048 >            new ThreadPoolExecutor(1, 30,
2049 >                                   60, SECONDS,
2050 >                                   new ArrayBlockingQueue(30));
2051 >        try {
2052 >            for (int i = 0; i < nTasks; ++i) {
2053 >                for (;;) {
2054 >                    try {
2055 >                        p.execute(recycledTask);
2056 >                        break;
2057 >                    }
2058 >                    catch (RejectedExecutionException ignore) {}
2059 >                }
2060 >            }
2061 >            // enough time to run all tasks
2062 >            assertTrue(done.await(nTasks * SHORT_DELAY_MS, MILLISECONDS));
2063          } finally {
2064 <            tpe.shutdown();
2064 >            joinPool(p);
2065          }
570        joinPool(tpe);
2066      }
572    
2067  
2068      /**
2069 <     *   setKeepAliveTime will throw IllegalArgumentException
576 <     *  when given a negative value
2069 >     * get(cancelled task) throws CancellationException
2070       */
2071 <    public void testKeepAliveTimeIllegalArgumentException(){
2072 <        ThreadPoolExecutor tpe = null;
2073 <        try{
2074 <            tpe = new ThreadPoolExecutor(2,3,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10));
2075 <        } catch(Exception e){}
2076 <        
2077 <        try{
2078 <            tpe.setKeepAliveTime(-1,TimeUnit.MILLISECONDS);
2079 <            fail("ThreadPoolExecutor - void setKeepAliveTime(long, TimeUnit) should throw IllegalArgumentException");
2080 <        } catch(IllegalArgumentException success){
2071 >    public void testGet_cancelled() throws Exception {
2072 >        final ExecutorService e =
2073 >            new ThreadPoolExecutor(1, 1,
2074 >                                   LONG_DELAY_MS, MILLISECONDS,
2075 >                                   new LinkedBlockingQueue<Runnable>());
2076 >        try {
2077 >            final CountDownLatch blockerStarted = new CountDownLatch(1);
2078 >            final CountDownLatch done = new CountDownLatch(1);
2079 >            final List<Future<?>> futures = new ArrayList<>();
2080 >            for (int i = 0; i < 2; i++) {
2081 >                Runnable r = new CheckedRunnable() { public void realRun()
2082 >                                                         throws Throwable {
2083 >                    blockerStarted.countDown();
2084 >                    assertTrue(done.await(2 * LONG_DELAY_MS, MILLISECONDS));
2085 >                }};
2086 >                futures.add(e.submit(r));
2087 >            }
2088 >            assertTrue(blockerStarted.await(LONG_DELAY_MS, MILLISECONDS));
2089 >            for (Future<?> future : futures) future.cancel(false);
2090 >            for (Future<?> future : futures) {
2091 >                try {
2092 >                    future.get();
2093 >                    shouldThrow();
2094 >                } catch (CancellationException success) {}
2095 >                try {
2096 >                    future.get(LONG_DELAY_MS, MILLISECONDS);
2097 >                    shouldThrow();
2098 >                } catch (CancellationException success) {}
2099 >                assertTrue(future.isCancelled());
2100 >                assertTrue(future.isDone());
2101 >            }
2102 >            done.countDown();
2103          } finally {
2104 <            tpe.shutdown();
2104 >            joinPool(e);
2105          }
591        joinPool(tpe);
2106      }
2107 <  
2107 >
2108   }

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