ViewVC Help
View File | Revision Log | Show Annotations | Download File | Root Listing
root/jsr166/jsr166/src/test/tck/ThreadPoolExecutorTest.java
(Generate patch)

Comparing jsr166/src/test/tck/ThreadPoolExecutorTest.java (file contents):
Revision 1.18 by dl, Tue Jan 20 20:30:08 2004 UTC vs.
Revision 1.124 by jsr166, Mon Jul 17 22:27:31 2017 UTC

# Line 1 | Line 1
1   /*
2   * Written by Doug Lea with assistance from members of JCP JSR-166
3   * Expert Group and released to the public domain, as explained at
4 < * http://creativecommons.org/licenses/publicdomain
5 < * Other contributors include Andrew Wright, Jeffrey Hayes,
6 < * Pat Fisher, Mike Judd.
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.*;
11 < import java.util.*;
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.Collection;
15 > import java.util.Collections;
16 > import java.util.List;
17 > import java.util.concurrent.ArrayBlockingQueue;
18 > import java.util.concurrent.BlockingQueue;
19 > import java.util.concurrent.Callable;
20 > import java.util.concurrent.CancellationException;
21 > import java.util.concurrent.CountDownLatch;
22 > import java.util.concurrent.ExecutionException;
23 > import java.util.concurrent.ExecutorService;
24 > import java.util.concurrent.Future;
25 > import java.util.concurrent.FutureTask;
26 > import java.util.concurrent.LinkedBlockingQueue;
27 > import java.util.concurrent.RejectedExecutionException;
28 > import java.util.concurrent.RejectedExecutionHandler;
29 > import java.util.concurrent.SynchronousQueue;
30 > import java.util.concurrent.ThreadFactory;
31 > import java.util.concurrent.ThreadLocalRandom;
32 > import java.util.concurrent.ThreadPoolExecutor;
33 > import java.util.concurrent.ThreadPoolExecutor.AbortPolicy;
34 > import java.util.concurrent.ThreadPoolExecutor.CallerRunsPolicy;
35 > import java.util.concurrent.ThreadPoolExecutor.DiscardPolicy;
36 > import java.util.concurrent.ThreadPoolExecutor.DiscardOldestPolicy;
37 > import java.util.concurrent.atomic.AtomicInteger;
38 > import java.util.concurrent.atomic.AtomicReference;
39 >
40 > import junit.framework.Test;
41 > import junit.framework.TestSuite;
42  
43   public class ThreadPoolExecutorTest extends JSR166TestCase {
44      public static void main(String[] args) {
45 <        junit.textui.TestRunner.run (suite());  
45 >        main(suite(), args);
46      }
47      public static Test suite() {
48          return new TestSuite(ThreadPoolExecutorTest.class);
49      }
50 <    
50 >
51      static class ExtendedTPE extends ThreadPoolExecutor {
52 <        volatile boolean beforeCalled = false;
53 <        volatile boolean afterCalled = false;
54 <        volatile boolean terminatedCalled = false;
52 >        final CountDownLatch beforeCalled = new CountDownLatch(1);
53 >        final CountDownLatch afterCalled = new CountDownLatch(1);
54 >        final CountDownLatch terminatedCalled = new CountDownLatch(1);
55 >
56          public ExtendedTPE() {
57 <            super(1, 1, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new SynchronousQueue<Runnable>());
57 >            super(1, 1, LONG_DELAY_MS, MILLISECONDS, new SynchronousQueue<Runnable>());
58          }
59          protected void beforeExecute(Thread t, Runnable r) {
60 <            beforeCalled = true;
60 >            beforeCalled.countDown();
61          }
62          protected void afterExecute(Runnable r, Throwable t) {
63 <            afterCalled = true;
63 >            afterCalled.countDown();
64          }
65          protected void terminated() {
66 <            terminatedCalled = true;
66 >            terminatedCalled.countDown();
67 >        }
68 >
69 >        public boolean beforeCalled() {
70 >            return beforeCalled.getCount() == 0;
71 >        }
72 >        public boolean afterCalled() {
73 >            return afterCalled.getCount() == 0;
74 >        }
75 >        public boolean terminatedCalled() {
76 >            return terminatedCalled.getCount() == 0;
77 >        }
78 >    }
79 >
80 >    static class FailingThreadFactory implements ThreadFactory {
81 >        int calls = 0;
82 >        public Thread newThread(Runnable r) {
83 >            if (++calls > 1) return null;
84 >            return new Thread(r);
85          }
86      }
87  
88      /**
89 <     *  execute successfully executes a runnable
89 >     * execute successfully executes a runnable
90       */
91 <    public void testExecute() {
92 <        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
93 <        try {
94 <            p1.execute(new Runnable() {
95 <                    public void run() {
96 <                        try {
97 <                            Thread.sleep(SHORT_DELAY_MS);
98 <                        } catch(InterruptedException e){
99 <                            threadUnexpectedException();
100 <                        }
101 <                    }
102 <                });
54 <            Thread.sleep(SMALL_DELAY_MS);
55 <        } catch(InterruptedException e){
56 <            unexpectedException();
57 <        }
58 <        joinPool(p1);
91 >    public void testExecute() throws InterruptedException {
92 >        final ThreadPoolExecutor p =
93 >            new ThreadPoolExecutor(1, 1,
94 >                                   LONG_DELAY_MS, MILLISECONDS,
95 >                                   new ArrayBlockingQueue<Runnable>(10));
96 >        try (PoolCleaner cleaner = cleaner(p)) {
97 >            final CountDownLatch done = new CountDownLatch(1);
98 >            final Runnable task = new CheckedRunnable() {
99 >                public void realRun() { done.countDown(); }};
100 >            p.execute(task);
101 >            await(done);
102 >        }
103      }
104  
105      /**
106 <     *  getActiveCount increases but doesn't overestimate, when a
107 <     *  thread becomes active
106 >     * getActiveCount increases but doesn't overestimate, when a
107 >     * thread becomes active
108       */
109 <    public void testGetActiveCount() {
110 <        ThreadPoolExecutor p2 = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
111 <        assertEquals(0, p2.getActiveCount());
112 <        p2.execute(new MediumRunnable());
113 <        try {
114 <            Thread.sleep(SHORT_DELAY_MS);
115 <        } catch(Exception e){
116 <            unexpectedException();
109 >    public void testGetActiveCount() throws InterruptedException {
110 >        final CountDownLatch done = new CountDownLatch(1);
111 >        final ThreadPoolExecutor p =
112 >            new ThreadPoolExecutor(2, 2,
113 >                                   LONG_DELAY_MS, MILLISECONDS,
114 >                                   new ArrayBlockingQueue<Runnable>(10));
115 >        try (PoolCleaner cleaner = cleaner(p, done)) {
116 >            final CountDownLatch threadStarted = new CountDownLatch(1);
117 >            assertEquals(0, p.getActiveCount());
118 >            p.execute(new CheckedRunnable() {
119 >                public void realRun() throws InterruptedException {
120 >                    threadStarted.countDown();
121 >                    assertEquals(1, p.getActiveCount());
122 >                    await(done);
123 >                }});
124 >            await(threadStarted);
125 >            assertEquals(1, p.getActiveCount());
126          }
74        assertEquals(1, p2.getActiveCount());
75        joinPool(p2);
127      }
128  
129      /**
130 <     *  prestartCoreThread starts a thread if under corePoolSize, else doesn't
130 >     * prestartCoreThread starts a thread if under corePoolSize, else doesn't
131       */
132      public void testPrestartCoreThread() {
133 <        ThreadPoolExecutor p2 = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
134 <        assertEquals(0, p2.getPoolSize());
135 <        assertTrue(p2.prestartCoreThread());
136 <        assertEquals(1, p2.getPoolSize());
137 <        assertTrue(p2.prestartCoreThread());
138 <        assertEquals(2, p2.getPoolSize());
139 <        assertFalse(p2.prestartCoreThread());
140 <        assertEquals(2, p2.getPoolSize());
141 <        joinPool(p2);
133 >        final ThreadPoolExecutor p =
134 >            new ThreadPoolExecutor(2, 6,
135 >                                   LONG_DELAY_MS, MILLISECONDS,
136 >                                   new ArrayBlockingQueue<Runnable>(10));
137 >        try (PoolCleaner cleaner = cleaner(p)) {
138 >            assertEquals(0, p.getPoolSize());
139 >            assertTrue(p.prestartCoreThread());
140 >            assertEquals(1, p.getPoolSize());
141 >            assertTrue(p.prestartCoreThread());
142 >            assertEquals(2, p.getPoolSize());
143 >            assertFalse(p.prestartCoreThread());
144 >            assertEquals(2, p.getPoolSize());
145 >            p.setCorePoolSize(4);
146 >            assertTrue(p.prestartCoreThread());
147 >            assertEquals(3, p.getPoolSize());
148 >            assertTrue(p.prestartCoreThread());
149 >            assertEquals(4, p.getPoolSize());
150 >            assertFalse(p.prestartCoreThread());
151 >            assertEquals(4, p.getPoolSize());
152 >        }
153      }
154  
155      /**
156 <     *  prestartAllCoreThreads starts all corePoolSize threads
156 >     * prestartAllCoreThreads starts all corePoolSize threads
157       */
158      public void testPrestartAllCoreThreads() {
159 <        ThreadPoolExecutor p2 = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
160 <        assertEquals(0, p2.getPoolSize());
161 <        p2.prestartAllCoreThreads();
162 <        assertEquals(2, p2.getPoolSize());
163 <        p2.prestartAllCoreThreads();
164 <        assertEquals(2, p2.getPoolSize());
165 <        joinPool(p2);
166 <    }
167 <    
168 <    /**
169 <     *   getCompletedTaskCount increases, but doesn't overestimate,
170 <     *   when tasks complete
171 <     */
172 <    public void testGetCompletedTaskCount() {
173 <        ThreadPoolExecutor p2 = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
174 <        assertEquals(0, p2.getCompletedTaskCount());
113 <        p2.execute(new ShortRunnable());
114 <        try {
115 <            Thread.sleep(SMALL_DELAY_MS);
116 <        } catch(Exception e){
117 <            unexpectedException();
118 <        }
119 <        assertEquals(1, p2.getCompletedTaskCount());
120 <        try { p2.shutdown(); } catch(SecurityException ok) { return; }
121 <        joinPool(p2);
159 >        final ThreadPoolExecutor p =
160 >            new ThreadPoolExecutor(2, 6,
161 >                                   LONG_DELAY_MS, MILLISECONDS,
162 >                                   new ArrayBlockingQueue<Runnable>(10));
163 >        try (PoolCleaner cleaner = cleaner(p)) {
164 >            assertEquals(0, p.getPoolSize());
165 >            p.prestartAllCoreThreads();
166 >            assertEquals(2, p.getPoolSize());
167 >            p.prestartAllCoreThreads();
168 >            assertEquals(2, p.getPoolSize());
169 >            p.setCorePoolSize(4);
170 >            p.prestartAllCoreThreads();
171 >            assertEquals(4, p.getPoolSize());
172 >            p.prestartAllCoreThreads();
173 >            assertEquals(4, p.getPoolSize());
174 >        }
175      }
176 <    
176 >
177      /**
178 <     *   getCorePoolSize returns size given in constructor if not otherwise set
178 >     * getCompletedTaskCount increases, but doesn't overestimate,
179 >     * when tasks complete
180 >     */
181 >    public void testGetCompletedTaskCount() throws InterruptedException {
182 >        final ThreadPoolExecutor p =
183 >            new ThreadPoolExecutor(2, 2,
184 >                                   LONG_DELAY_MS, MILLISECONDS,
185 >                                   new ArrayBlockingQueue<Runnable>(10));
186 >        try (PoolCleaner cleaner = cleaner(p)) {
187 >            final CountDownLatch threadStarted = new CountDownLatch(1);
188 >            final CountDownLatch threadProceed = new CountDownLatch(1);
189 >            final CountDownLatch threadDone = new CountDownLatch(1);
190 >            assertEquals(0, p.getCompletedTaskCount());
191 >            p.execute(new CheckedRunnable() {
192 >                public void realRun() throws InterruptedException {
193 >                    threadStarted.countDown();
194 >                    assertEquals(0, p.getCompletedTaskCount());
195 >                    await(threadProceed);
196 >                    threadDone.countDown();
197 >                }});
198 >            await(threadStarted);
199 >            assertEquals(0, p.getCompletedTaskCount());
200 >            threadProceed.countDown();
201 >            await(threadDone);
202 >            long startTime = System.nanoTime();
203 >            while (p.getCompletedTaskCount() != 1) {
204 >                if (millisElapsedSince(startTime) > LONG_DELAY_MS)
205 >                    fail("timed out");
206 >                Thread.yield();
207 >            }
208 >        }
209 >    }
210 >
211 >    /**
212 >     * getCorePoolSize returns size given in constructor if not otherwise set
213       */
214      public void testGetCorePoolSize() {
215 <        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
216 <        assertEquals(1, p1.getCorePoolSize());
217 <        joinPool(p1);
215 >        final ThreadPoolExecutor p =
216 >            new ThreadPoolExecutor(1, 1,
217 >                                   LONG_DELAY_MS, MILLISECONDS,
218 >                                   new ArrayBlockingQueue<Runnable>(10));
219 >        try (PoolCleaner cleaner = cleaner(p)) {
220 >            assertEquals(1, p.getCorePoolSize());
221 >        }
222      }
223 <    
223 >
224      /**
225 <     *   getKeepAliveTime returns value given in constructor if not otherwise set
225 >     * getKeepAliveTime returns value given in constructor if not otherwise set
226       */
227      public void testGetKeepAliveTime() {
228 <        ThreadPoolExecutor p2 = new ThreadPoolExecutor(2, 2, 1000, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
229 <        assertEquals(1, p2.getKeepAliveTime(TimeUnit.SECONDS));
230 <        joinPool(p2);
228 >        final ThreadPoolExecutor p =
229 >            new ThreadPoolExecutor(2, 2,
230 >                                   1000, MILLISECONDS,
231 >                                   new ArrayBlockingQueue<Runnable>(10));
232 >        try (PoolCleaner cleaner = cleaner(p)) {
233 >            assertEquals(1, p.getKeepAliveTime(SECONDS));
234 >        }
235      }
236  
237 <
143 <    /**
237 >    /**
238       * getThreadFactory returns factory in constructor if not set
239       */
240      public void testGetThreadFactory() {
241 <        ThreadFactory tf = new SimpleThreadFactory();
242 <        ThreadPoolExecutor p = new ThreadPoolExecutor(1,2,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10), tf, new NoOpREHandler());
243 <        assertSame(tf, p.getThreadFactory());
244 <        joinPool(p);
241 >        ThreadFactory threadFactory = new SimpleThreadFactory();
242 >        final ThreadPoolExecutor p =
243 >            new ThreadPoolExecutor(1, 2,
244 >                                   LONG_DELAY_MS, MILLISECONDS,
245 >                                   new ArrayBlockingQueue<Runnable>(10),
246 >                                   threadFactory,
247 >                                   new NoOpREHandler());
248 >        try (PoolCleaner cleaner = cleaner(p)) {
249 >            assertSame(threadFactory, p.getThreadFactory());
250 >        }
251      }
252  
253 <    /**
253 >    /**
254       * setThreadFactory sets the thread factory returned by getThreadFactory
255       */
256      public void testSetThreadFactory() {
257 <        ThreadPoolExecutor p = new ThreadPoolExecutor(1,2,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
258 <        ThreadFactory tf = new SimpleThreadFactory();
259 <        p.setThreadFactory(tf);
260 <        assertSame(tf, p.getThreadFactory());
261 <        joinPool(p);
257 >        final ThreadPoolExecutor p =
258 >            new ThreadPoolExecutor(1, 2,
259 >                                   LONG_DELAY_MS, MILLISECONDS,
260 >                                   new ArrayBlockingQueue<Runnable>(10));
261 >        try (PoolCleaner cleaner = cleaner(p)) {
262 >            ThreadFactory threadFactory = new SimpleThreadFactory();
263 >            p.setThreadFactory(threadFactory);
264 >            assertSame(threadFactory, p.getThreadFactory());
265 >        }
266      }
267  
268 <
165 <    /**
268 >    /**
269       * setThreadFactory(null) throws NPE
270       */
271      public void testSetThreadFactoryNull() {
272 <        ThreadPoolExecutor p = new ThreadPoolExecutor(1,2,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
273 <        try {
274 <            p.setThreadFactory(null);
275 <            shouldThrow();
276 <        } catch (NullPointerException success) {
277 <        } finally {
278 <            joinPool(p);
272 >        final ThreadPoolExecutor p =
273 >            new ThreadPoolExecutor(1, 2,
274 >                                   LONG_DELAY_MS, MILLISECONDS,
275 >                                   new ArrayBlockingQueue<Runnable>(10));
276 >        try (PoolCleaner cleaner = cleaner(p)) {
277 >            try {
278 >                p.setThreadFactory(null);
279 >                shouldThrow();
280 >            } catch (NullPointerException success) {}
281          }
282      }
283  
284 <    /**
284 >    /**
285 >     * The default rejected execution handler is AbortPolicy.
286 >     */
287 >    public void testDefaultRejectedExecutionHandler() {
288 >        final ThreadPoolExecutor p =
289 >            new ThreadPoolExecutor(1, 2,
290 >                                   LONG_DELAY_MS, MILLISECONDS,
291 >                                   new ArrayBlockingQueue<Runnable>(10));
292 >        try (PoolCleaner cleaner = cleaner(p)) {
293 >            assertTrue(p.getRejectedExecutionHandler() instanceof AbortPolicy);
294 >        }
295 >    }
296 >
297 >    /**
298       * getRejectedExecutionHandler returns handler in constructor if not set
299       */
300      public void testGetRejectedExecutionHandler() {
301 <        RejectedExecutionHandler h = new NoOpREHandler();
302 <        ThreadPoolExecutor p = new ThreadPoolExecutor(1,2,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10), h);
303 <        assertSame(h, p.getRejectedExecutionHandler());
304 <        joinPool(p);
301 >        final RejectedExecutionHandler handler = new NoOpREHandler();
302 >        final ThreadPoolExecutor p =
303 >            new ThreadPoolExecutor(1, 2,
304 >                                   LONG_DELAY_MS, MILLISECONDS,
305 >                                   new ArrayBlockingQueue<Runnable>(10),
306 >                                   handler);
307 >        try (PoolCleaner cleaner = cleaner(p)) {
308 >            assertSame(handler, p.getRejectedExecutionHandler());
309 >        }
310      }
311  
312 <    /**
312 >    /**
313       * setRejectedExecutionHandler sets the handler returned by
314       * getRejectedExecutionHandler
315       */
316      public void testSetRejectedExecutionHandler() {
317 <        ThreadPoolExecutor p = new ThreadPoolExecutor(1,2,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
318 <        RejectedExecutionHandler h = new NoOpREHandler();
319 <        p.setRejectedExecutionHandler(h);
320 <        assertSame(h, p.getRejectedExecutionHandler());
321 <        joinPool(p);
317 >        final ThreadPoolExecutor p =
318 >            new ThreadPoolExecutor(1, 2,
319 >                                   LONG_DELAY_MS, MILLISECONDS,
320 >                                   new ArrayBlockingQueue<Runnable>(10));
321 >        try (PoolCleaner cleaner = cleaner(p)) {
322 >            RejectedExecutionHandler handler = new NoOpREHandler();
323 >            p.setRejectedExecutionHandler(handler);
324 >            assertSame(handler, p.getRejectedExecutionHandler());
325 >        }
326      }
327  
328 <
202 <    /**
328 >    /**
329       * setRejectedExecutionHandler(null) throws NPE
330       */
331      public void testSetRejectedExecutionHandlerNull() {
332 <        ThreadPoolExecutor p = new ThreadPoolExecutor(1,2,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
333 <        try {
334 <            p.setRejectedExecutionHandler(null);
335 <            shouldThrow();
336 <        } catch (NullPointerException success) {
337 <        } finally {
338 <            joinPool(p);
332 >        final ThreadPoolExecutor p =
333 >            new ThreadPoolExecutor(1, 2,
334 >                                   LONG_DELAY_MS, MILLISECONDS,
335 >                                   new ArrayBlockingQueue<Runnable>(10));
336 >        try (PoolCleaner cleaner = cleaner(p)) {
337 >            try {
338 >                p.setRejectedExecutionHandler(null);
339 >                shouldThrow();
340 >            } catch (NullPointerException success) {}
341          }
342      }
343  
216    
217    /**
218     *   getLargestPoolSize increases, but doesn't overestimate, when
219     *   multiple threads active
220     */
221    public void testGetLargestPoolSize() {
222        ThreadPoolExecutor p2 = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
223        try {
224            assertEquals(0, p2.getLargestPoolSize());
225            p2.execute(new MediumRunnable());
226            p2.execute(new MediumRunnable());
227            Thread.sleep(SHORT_DELAY_MS);
228            assertEquals(2, p2.getLargestPoolSize());
229        } catch(Exception e){
230            unexpectedException();
231        }
232        joinPool(p2);
233    }
234    
235    /**
236     *   getMaximumPoolSize returns value given in constructor if not
237     *   otherwise set
238     */
239    public void testGetMaximumPoolSize() {
240        ThreadPoolExecutor p2 = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
241        assertEquals(2, p2.getMaximumPoolSize());
242        joinPool(p2);
243    }
244    
245    /**
246     *   getPoolSize increases, but doesn't overestimate, when threads
247     *   become active
248     */
249    public void testGetPoolSize() {
250        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
251        assertEquals(0, p1.getPoolSize());
252        p1.execute(new MediumRunnable());
253        assertEquals(1, p1.getPoolSize());
254        joinPool(p1);
255    }
256    
257    /**
258     *  getTaskCount increases, but doesn't overestimate, when tasks submitted
259     */
260    public void testGetTaskCount() {
261        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
262        try {
263            assertEquals(0, p1.getTaskCount());
264            p1.execute(new MediumRunnable());
265            Thread.sleep(SHORT_DELAY_MS);
266            assertEquals(1, p1.getTaskCount());
267        } catch(Exception e){
268            unexpectedException();
269        }
270        joinPool(p1);
271    }
272    
344      /**
345 <     *   isShutDown is false before shutdown, true after
346 <     */
347 <    public void testIsShutdown() {
348 <        
349 <        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
350 <        assertFalse(p1.isShutdown());
351 <        try { p1.shutdown(); } catch(SecurityException ok) { return; }
352 <        assertTrue(p1.isShutdown());
353 <        joinPool(p1);
345 >     * getLargestPoolSize increases, but doesn't overestimate, when
346 >     * multiple threads active
347 >     */
348 >    public void testGetLargestPoolSize() throws InterruptedException {
349 >        final int THREADS = 3;
350 >        final CountDownLatch done = new CountDownLatch(1);
351 >        final ThreadPoolExecutor p =
352 >            new ThreadPoolExecutor(THREADS, THREADS,
353 >                                   LONG_DELAY_MS, MILLISECONDS,
354 >                                   new ArrayBlockingQueue<Runnable>(10));
355 >        try (PoolCleaner cleaner = cleaner(p, done)) {
356 >            assertEquals(0, p.getLargestPoolSize());
357 >            final CountDownLatch threadsStarted = new CountDownLatch(THREADS);
358 >            for (int i = 0; i < THREADS; i++)
359 >                p.execute(new CheckedRunnable() {
360 >                    public void realRun() throws InterruptedException {
361 >                        threadsStarted.countDown();
362 >                        await(done);
363 >                        assertEquals(THREADS, p.getLargestPoolSize());
364 >                    }});
365 >            await(threadsStarted);
366 >            assertEquals(THREADS, p.getLargestPoolSize());
367 >        }
368 >        assertEquals(THREADS, p.getLargestPoolSize());
369      }
370  
285        
371      /**
372 <     *  isTerminated is false before termination, true after
372 >     * getMaximumPoolSize returns value given in constructor if not
373 >     * otherwise set
374       */
375 <    public void testIsTerminated() {
376 <        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
377 <        assertFalse(p1.isTerminated());
378 <        try {
379 <            p1.execute(new MediumRunnable());
380 <        } finally {
381 <            try { p1.shutdown(); } catch(SecurityException ok) { return; }
375 >    public void testGetMaximumPoolSize() {
376 >        final ThreadPoolExecutor p =
377 >            new ThreadPoolExecutor(2, 3,
378 >                                   LONG_DELAY_MS, MILLISECONDS,
379 >                                   new ArrayBlockingQueue<Runnable>(10));
380 >        try (PoolCleaner cleaner = cleaner(p)) {
381 >            assertEquals(3, p.getMaximumPoolSize());
382 >            p.setMaximumPoolSize(5);
383 >            assertEquals(5, p.getMaximumPoolSize());
384 >            p.setMaximumPoolSize(4);
385 >            assertEquals(4, p.getMaximumPoolSize());
386 >        }
387 >    }
388 >
389 >    /**
390 >     * getPoolSize increases, but doesn't overestimate, when threads
391 >     * become active
392 >     */
393 >    public void testGetPoolSize() throws InterruptedException {
394 >        final CountDownLatch done = new CountDownLatch(1);
395 >        final ThreadPoolExecutor p =
396 >            new ThreadPoolExecutor(1, 1,
397 >                                   LONG_DELAY_MS, MILLISECONDS,
398 >                                   new ArrayBlockingQueue<Runnable>(10));
399 >        try (PoolCleaner cleaner = cleaner(p, done)) {
400 >            assertEquals(0, p.getPoolSize());
401 >            final CountDownLatch threadStarted = new CountDownLatch(1);
402 >            p.execute(new CheckedRunnable() {
403 >                public void realRun() throws InterruptedException {
404 >                    threadStarted.countDown();
405 >                    assertEquals(1, p.getPoolSize());
406 >                    await(done);
407 >                }});
408 >            await(threadStarted);
409 >            assertEquals(1, p.getPoolSize());
410 >        }
411 >    }
412 >
413 >    /**
414 >     * getTaskCount increases, but doesn't overestimate, when tasks submitted
415 >     */
416 >    public void testGetTaskCount() throws InterruptedException {
417 >        final int TASKS = 3;
418 >        final CountDownLatch done = new CountDownLatch(1);
419 >        final ThreadPoolExecutor p =
420 >            new ThreadPoolExecutor(1, 1,
421 >                                   LONG_DELAY_MS, MILLISECONDS,
422 >                                   new ArrayBlockingQueue<Runnable>(10));
423 >        try (PoolCleaner cleaner = cleaner(p, done)) {
424 >            final CountDownLatch threadStarted = new CountDownLatch(1);
425 >            assertEquals(0, p.getTaskCount());
426 >            assertEquals(0, p.getCompletedTaskCount());
427 >            p.execute(new CheckedRunnable() {
428 >                public void realRun() throws InterruptedException {
429 >                    threadStarted.countDown();
430 >                    await(done);
431 >                }});
432 >            await(threadStarted);
433 >            assertEquals(1, p.getTaskCount());
434 >            assertEquals(0, p.getCompletedTaskCount());
435 >            for (int i = 0; i < TASKS; i++) {
436 >                assertEquals(1 + i, p.getTaskCount());
437 >                p.execute(new CheckedRunnable() {
438 >                    public void realRun() throws InterruptedException {
439 >                        threadStarted.countDown();
440 >                        assertEquals(1 + TASKS, p.getTaskCount());
441 >                        await(done);
442 >                    }});
443 >            }
444 >            assertEquals(1 + TASKS, p.getTaskCount());
445 >            assertEquals(0, p.getCompletedTaskCount());
446          }
447 <        try {
448 <            assertTrue(p1.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
299 <            assertTrue(p1.isTerminated());
300 <        } catch(Exception e){
301 <            unexpectedException();
302 <        }      
447 >        assertEquals(1 + TASKS, p.getTaskCount());
448 >        assertEquals(1 + TASKS, p.getCompletedTaskCount());
449      }
450  
451      /**
452 <     *  isTerminating is not true when running or when terminated
452 >     * isShutdown is false before shutdown, true after
453       */
454 <    public void testIsTerminating() {
455 <        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
456 <        assertFalse(p1.isTerminating());
457 <        try {
458 <            p1.execute(new SmallRunnable());
459 <            assertFalse(p1.isTerminating());
460 <        } finally {
461 <            try { p1.shutdown(); } catch(SecurityException ok) { return; }
454 >    public void testIsShutdown() {
455 >        final ThreadPoolExecutor p =
456 >            new ThreadPoolExecutor(1, 1,
457 >                                   LONG_DELAY_MS, MILLISECONDS,
458 >                                   new ArrayBlockingQueue<Runnable>(10));
459 >        try (PoolCleaner cleaner = cleaner(p)) {
460 >            assertFalse(p.isShutdown());
461 >            try { p.shutdown(); } catch (SecurityException ok) { return; }
462 >            assertTrue(p.isShutdown());
463 >        }
464 >    }
465 >
466 >    /**
467 >     * awaitTermination on a non-shutdown pool times out
468 >     */
469 >    public void testAwaitTermination_timesOut() throws InterruptedException {
470 >        final ThreadPoolExecutor p =
471 >            new ThreadPoolExecutor(1, 1,
472 >                                   LONG_DELAY_MS, MILLISECONDS,
473 >                                   new ArrayBlockingQueue<Runnable>(10));
474 >        try (PoolCleaner cleaner = cleaner(p)) {
475 >            assertFalse(p.isTerminated());
476 >            assertFalse(p.awaitTermination(Long.MIN_VALUE, NANOSECONDS));
477 >            assertFalse(p.awaitTermination(Long.MIN_VALUE, MILLISECONDS));
478 >            assertFalse(p.awaitTermination(-1L, NANOSECONDS));
479 >            assertFalse(p.awaitTermination(-1L, MILLISECONDS));
480 >            assertFalse(p.awaitTermination(randomExpiredTimeout(),
481 >                                           randomTimeUnit()));
482 >            long timeoutNanos = 999999L;
483 >            long startTime = System.nanoTime();
484 >            assertFalse(p.awaitTermination(timeoutNanos, NANOSECONDS));
485 >            assertTrue(System.nanoTime() - startTime >= timeoutNanos);
486 >            assertFalse(p.isTerminated());
487 >            startTime = System.nanoTime();
488 >            long timeoutMillis = timeoutMillis();
489 >            assertFalse(p.awaitTermination(timeoutMillis, MILLISECONDS));
490 >            assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
491 >            assertFalse(p.isTerminated());
492 >            try { p.shutdown(); } catch (SecurityException ok) { return; }
493 >            assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
494 >            assertTrue(p.isTerminated());
495 >        }
496 >    }
497 >
498 >    /**
499 >     * isTerminated is false before termination, true after
500 >     */
501 >    public void testIsTerminated() throws InterruptedException {
502 >        final ThreadPoolExecutor p =
503 >            new ThreadPoolExecutor(1, 1,
504 >                                   LONG_DELAY_MS, MILLISECONDS,
505 >                                   new ArrayBlockingQueue<Runnable>(10));
506 >        try (PoolCleaner cleaner = cleaner(p)) {
507 >            final CountDownLatch threadStarted = new CountDownLatch(1);
508 >            final CountDownLatch done = new CountDownLatch(1);
509 >            assertFalse(p.isTerminating());
510 >            p.execute(new CheckedRunnable() {
511 >                public void realRun() throws InterruptedException {
512 >                    assertFalse(p.isTerminating());
513 >                    threadStarted.countDown();
514 >                    await(done);
515 >                }});
516 >            await(threadStarted);
517 >            assertFalse(p.isTerminating());
518 >            done.countDown();
519 >            try { p.shutdown(); } catch (SecurityException ok) { return; }
520 >            assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
521 >            assertTrue(p.isTerminated());
522 >            assertFalse(p.isTerminating());
523 >        }
524 >    }
525 >
526 >    /**
527 >     * isTerminating is not true when running or when terminated
528 >     */
529 >    public void testIsTerminating() throws InterruptedException {
530 >        final ThreadPoolExecutor p =
531 >            new ThreadPoolExecutor(1, 1,
532 >                                   LONG_DELAY_MS, MILLISECONDS,
533 >                                   new ArrayBlockingQueue<Runnable>(10));
534 >        try (PoolCleaner cleaner = cleaner(p)) {
535 >            final CountDownLatch threadStarted = new CountDownLatch(1);
536 >            final CountDownLatch done = new CountDownLatch(1);
537 >            assertFalse(p.isTerminating());
538 >            p.execute(new CheckedRunnable() {
539 >                public void realRun() throws InterruptedException {
540 >                    assertFalse(p.isTerminating());
541 >                    threadStarted.countDown();
542 >                    await(done);
543 >                }});
544 >            await(threadStarted);
545 >            assertFalse(p.isTerminating());
546 >            done.countDown();
547 >            try { p.shutdown(); } catch (SecurityException ok) { return; }
548 >            assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
549 >            assertTrue(p.isTerminated());
550 >            assertFalse(p.isTerminating());
551          }
317        try {
318            assertTrue(p1.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
319            assertTrue(p1.isTerminated());
320            assertFalse(p1.isTerminating());
321        } catch(Exception e){
322            unexpectedException();
323        }      
552      }
553  
554      /**
555       * getQueue returns the work queue, which contains queued tasks
556       */
557 <    public void testGetQueue() {
558 <        BlockingQueue<Runnable> q = new ArrayBlockingQueue<Runnable>(10);
559 <        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, LONG_DELAY_MS, TimeUnit.MILLISECONDS, q);
560 <        FutureTask[] tasks = new FutureTask[5];
561 <        for(int i = 0; i < 5; i++){
562 <            tasks[i] = new FutureTask(new MediumPossiblyInterruptedRunnable(), Boolean.TRUE);
563 <            p1.execute(tasks[i]);
564 <        }
565 <        try {
566 <            Thread.sleep(SHORT_DELAY_MS);
567 <            BlockingQueue<Runnable> wq = p1.getQueue();
568 <            assertSame(q, wq);
569 <            assertFalse(wq.contains(tasks[0]));
570 <            assertTrue(wq.contains(tasks[4]));
571 <        } catch(Exception e) {
572 <            unexpectedException();
573 <        } finally {
574 <            joinPool(p1);
557 >    public void testGetQueue() throws InterruptedException {
558 >        final CountDownLatch done = new CountDownLatch(1);
559 >        final BlockingQueue<Runnable> q = new ArrayBlockingQueue<>(10);
560 >        final ThreadPoolExecutor p =
561 >            new ThreadPoolExecutor(1, 1,
562 >                                   LONG_DELAY_MS, MILLISECONDS,
563 >                                   q);
564 >        try (PoolCleaner cleaner = cleaner(p, done)) {
565 >            final CountDownLatch threadStarted = new CountDownLatch(1);
566 >            FutureTask[] tasks = new FutureTask[5];
567 >            for (int i = 0; i < tasks.length; i++) {
568 >                Callable task = new CheckedCallable<Boolean>() {
569 >                    public Boolean realCall() throws InterruptedException {
570 >                        threadStarted.countDown();
571 >                        assertSame(q, p.getQueue());
572 >                        await(done);
573 >                        return Boolean.TRUE;
574 >                    }};
575 >                tasks[i] = new FutureTask(task);
576 >                p.execute(tasks[i]);
577 >            }
578 >            await(threadStarted);
579 >            assertSame(q, p.getQueue());
580 >            assertFalse(q.contains(tasks[0]));
581 >            assertTrue(q.contains(tasks[tasks.length - 1]));
582 >            assertEquals(tasks.length - 1, q.size());
583          }
584      }
585  
586      /**
587       * remove(task) removes queued task, and fails to remove active task
588       */
589 <    public void testRemove() {
590 <        BlockingQueue<Runnable> q = new ArrayBlockingQueue<Runnable>(10);
591 <        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, LONG_DELAY_MS, TimeUnit.MILLISECONDS, q);
592 <        FutureTask[] tasks = new FutureTask[5];
593 <        for(int i = 0; i < 5; i++){
594 <            tasks[i] = new FutureTask(new MediumPossiblyInterruptedRunnable(), Boolean.TRUE);
595 <            p1.execute(tasks[i]);
596 <        }
597 <        try {
598 <            Thread.sleep(SHORT_DELAY_MS);
599 <            assertFalse(p1.remove(tasks[0]));
589 >    public void testRemove() throws InterruptedException {
590 >        final CountDownLatch done = new CountDownLatch(1);
591 >        BlockingQueue<Runnable> q = new ArrayBlockingQueue<>(10);
592 >        final ThreadPoolExecutor p =
593 >            new ThreadPoolExecutor(1, 1,
594 >                                   LONG_DELAY_MS, MILLISECONDS,
595 >                                   q);
596 >        try (PoolCleaner cleaner = cleaner(p, done)) {
597 >            Runnable[] tasks = new Runnable[6];
598 >            final CountDownLatch threadStarted = new CountDownLatch(1);
599 >            for (int i = 0; i < tasks.length; i++) {
600 >                tasks[i] = new CheckedRunnable() {
601 >                    public void realRun() throws InterruptedException {
602 >                        threadStarted.countDown();
603 >                        await(done);
604 >                    }};
605 >                p.execute(tasks[i]);
606 >            }
607 >            await(threadStarted);
608 >            assertFalse(p.remove(tasks[0]));
609              assertTrue(q.contains(tasks[4]));
610              assertTrue(q.contains(tasks[3]));
611 <            assertTrue(p1.remove(tasks[4]));
612 <            assertFalse(p1.remove(tasks[4]));
611 >            assertTrue(p.remove(tasks[4]));
612 >            assertFalse(p.remove(tasks[4]));
613              assertFalse(q.contains(tasks[4]));
614              assertTrue(q.contains(tasks[3]));
615 <            assertTrue(p1.remove(tasks[3]));
615 >            assertTrue(p.remove(tasks[3]));
616              assertFalse(q.contains(tasks[3]));
372        } catch(Exception e) {
373            unexpectedException();
374        } finally {
375            joinPool(p1);
617          }
618      }
619  
620      /**
621 <     *   purge removes cancelled tasks from the queue
621 >     * purge removes cancelled tasks from the queue
622       */
623 <    public void testPurge() {
624 <        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
625 <        FutureTask[] tasks = new FutureTask[5];
626 <        for(int i = 0; i < 5; i++){
627 <            tasks[i] = new FutureTask(new MediumPossiblyInterruptedRunnable(), Boolean.TRUE);
628 <            p1.execute(tasks[i]);
623 >    public void testPurge() throws InterruptedException {
624 >        final CountDownLatch threadStarted = new CountDownLatch(1);
625 >        final CountDownLatch done = new CountDownLatch(1);
626 >        final BlockingQueue<Runnable> q = new ArrayBlockingQueue<>(10);
627 >        final ThreadPoolExecutor p =
628 >            new ThreadPoolExecutor(1, 1,
629 >                                   LONG_DELAY_MS, MILLISECONDS,
630 >                                   q);
631 >        try (PoolCleaner cleaner = cleaner(p, done)) {
632 >            FutureTask[] tasks = new FutureTask[5];
633 >            for (int i = 0; i < tasks.length; i++) {
634 >                Callable task = new CheckedCallable<Boolean>() {
635 >                    public Boolean realCall() throws InterruptedException {
636 >                        threadStarted.countDown();
637 >                        await(done);
638 >                        return Boolean.TRUE;
639 >                    }};
640 >                tasks[i] = new FutureTask(task);
641 >                p.execute(tasks[i]);
642 >            }
643 >            await(threadStarted);
644 >            assertEquals(tasks.length, p.getTaskCount());
645 >            assertEquals(tasks.length - 1, q.size());
646 >            assertEquals(1L, p.getActiveCount());
647 >            assertEquals(0L, p.getCompletedTaskCount());
648 >            tasks[4].cancel(true);
649 >            tasks[3].cancel(false);
650 >            p.purge();
651 >            assertEquals(tasks.length - 3, q.size());
652 >            assertEquals(tasks.length - 2, p.getTaskCount());
653 >            p.purge();         // Nothing to do
654 >            assertEquals(tasks.length - 3, q.size());
655 >            assertEquals(tasks.length - 2, p.getTaskCount());
656          }
389        tasks[4].cancel(true);
390        tasks[3].cancel(true);
391        p1.purge();
392        long count = p1.getTaskCount();
393        assertTrue(count >= 2 && count < 5);
394        joinPool(p1);
657      }
658  
659      /**
660 <     *  shutDownNow returns a list containing tasks that were not run
661 <     */
662 <    public void testShutDownNow() {
663 <        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
664 <        List l;
665 <        try {
666 <            for(int i = 0; i < 5; i++)
667 <                p1.execute(new MediumPossiblyInterruptedRunnable());
668 <        }
669 <        finally {
660 >     * shutdownNow returns a list containing tasks that were not run,
661 >     * and those tasks are drained from the queue
662 >     */
663 >    public void testShutdownNow() throws InterruptedException {
664 >        final int poolSize = 2;
665 >        final int count = 5;
666 >        final AtomicInteger ran = new AtomicInteger(0);
667 >        final ThreadPoolExecutor p =
668 >            new ThreadPoolExecutor(poolSize, poolSize,
669 >                                   LONG_DELAY_MS, MILLISECONDS,
670 >                                   new ArrayBlockingQueue<Runnable>(10));
671 >        final CountDownLatch threadsStarted = new CountDownLatch(poolSize);
672 >        Runnable waiter = new CheckedRunnable() { public void realRun() {
673 >            threadsStarted.countDown();
674              try {
675 <                l = p1.shutdownNow();
676 <            } catch (SecurityException ok) { return; }
677 <            
678 <        }
679 <        assertTrue(p1.isShutdown());
680 <        assertTrue(l.size() <= 4);
675 >                MILLISECONDS.sleep(2 * LONG_DELAY_MS);
676 >            } catch (InterruptedException success) {}
677 >            ran.getAndIncrement();
678 >        }};
679 >        for (int i = 0; i < count; i++)
680 >            p.execute(waiter);
681 >        await(threadsStarted);
682 >        assertEquals(poolSize, p.getActiveCount());
683 >        assertEquals(0, p.getCompletedTaskCount());
684 >        final List<Runnable> queuedTasks;
685 >        try {
686 >            queuedTasks = p.shutdownNow();
687 >        } catch (SecurityException ok) {
688 >            return; // Allowed in case test doesn't have privs
689 >        }
690 >        assertTrue(p.isShutdown());
691 >        assertTrue(p.getQueue().isEmpty());
692 >        assertEquals(count - poolSize, queuedTasks.size());
693 >        assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
694 >        assertTrue(p.isTerminated());
695 >        assertEquals(poolSize, ran.get());
696 >        assertEquals(poolSize, p.getCompletedTaskCount());
697      }
698  
699      // Exception Tests
418    
700  
701 <    /**
702 <     * Constructor throws if corePoolSize argument is less than zero
701 >    /**
702 >     * Constructor throws if corePoolSize argument is less than zero
703       */
704      public void testConstructor1() {
705          try {
706 <            new ThreadPoolExecutor(-1,1,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
706 >            new ThreadPoolExecutor(-1, 1, 1L, SECONDS,
707 >                                   new ArrayBlockingQueue<Runnable>(10));
708              shouldThrow();
709 <        }
428 <        catch (IllegalArgumentException success){}
709 >        } catch (IllegalArgumentException success) {}
710      }
711 <    
712 <    /**
713 <     * Constructor throws if maximumPoolSize is less than zero
711 >
712 >    /**
713 >     * Constructor throws if maximumPoolSize is less than zero
714       */
715      public void testConstructor2() {
716          try {
717 <            new ThreadPoolExecutor(1,-1,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
717 >            new ThreadPoolExecutor(1, -1, 1L, SECONDS,
718 >                                   new ArrayBlockingQueue<Runnable>(10));
719              shouldThrow();
720 <        }
439 <        catch (IllegalArgumentException success){}
720 >        } catch (IllegalArgumentException success) {}
721      }
722 <    
723 <    /**
724 <     * Constructor throws if maximumPoolSize is equal to zero
722 >
723 >    /**
724 >     * Constructor throws if maximumPoolSize is equal to zero
725       */
726      public void testConstructor3() {
727          try {
728 <            new ThreadPoolExecutor(1,0,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
728 >            new ThreadPoolExecutor(1, 0, 1L, SECONDS,
729 >                                   new ArrayBlockingQueue<Runnable>(10));
730              shouldThrow();
731 <        }
450 <        catch (IllegalArgumentException success){}
731 >        } catch (IllegalArgumentException success) {}
732      }
733  
734 <    /**
735 <     * Constructor throws if keepAliveTime is less than zero
734 >    /**
735 >     * Constructor throws if keepAliveTime is less than zero
736       */
737      public void testConstructor4() {
738          try {
739 <            new ThreadPoolExecutor(1,2,-1L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
739 >            new ThreadPoolExecutor(1, 2, -1L, SECONDS,
740 >                                   new ArrayBlockingQueue<Runnable>(10));
741              shouldThrow();
742 <        }
461 <        catch (IllegalArgumentException success){}
742 >        } catch (IllegalArgumentException success) {}
743      }
744  
745 <    /**
746 <     * Constructor throws if corePoolSize is greater than the maximumPoolSize
745 >    /**
746 >     * Constructor throws if corePoolSize is greater than the maximumPoolSize
747       */
748      public void testConstructor5() {
749          try {
750 <            new ThreadPoolExecutor(2,1,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
750 >            new ThreadPoolExecutor(2, 1, 1L, SECONDS,
751 >                                   new ArrayBlockingQueue<Runnable>(10));
752              shouldThrow();
753 <        }
472 <        catch (IllegalArgumentException success){}
753 >        } catch (IllegalArgumentException success) {}
754      }
755 <        
756 <    /**
757 <     * Constructor throws if workQueue is set to null
755 >
756 >    /**
757 >     * Constructor throws if workQueue is set to null
758       */
759      public void testConstructorNullPointerException() {
760          try {
761 <            new ThreadPoolExecutor(1,2,LONG_DELAY_MS, TimeUnit.MILLISECONDS,null);
761 >            new ThreadPoolExecutor(1, 2, 1L, SECONDS,
762 >                                   (BlockingQueue) null);
763              shouldThrow();
764 <        }
483 <        catch (NullPointerException success){}  
764 >        } catch (NullPointerException success) {}
765      }
485    
766  
767 <    
768 <    /**
489 <     * Constructor throws if corePoolSize argument is less than zero
767 >    /**
768 >     * Constructor throws if corePoolSize argument is less than zero
769       */
770      public void testConstructor6() {
771          try {
772 <            new ThreadPoolExecutor(-1,1,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new SimpleThreadFactory());
772 >            new ThreadPoolExecutor(-1, 1, 1L, SECONDS,
773 >                                   new ArrayBlockingQueue<Runnable>(10),
774 >                                   new SimpleThreadFactory());
775              shouldThrow();
776 <        } catch (IllegalArgumentException success){}
776 >        } catch (IllegalArgumentException success) {}
777      }
778 <    
779 <    /**
780 <     * Constructor throws if maximumPoolSize is less than zero
778 >
779 >    /**
780 >     * Constructor throws if maximumPoolSize is less than zero
781       */
782      public void testConstructor7() {
783          try {
784 <            new ThreadPoolExecutor(1,-1,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new SimpleThreadFactory());
784 >            new ThreadPoolExecutor(1, -1, 1L, SECONDS,
785 >                                   new ArrayBlockingQueue<Runnable>(10),
786 >                                   new SimpleThreadFactory());
787              shouldThrow();
788 <        }
506 <        catch (IllegalArgumentException success){}
788 >        } catch (IllegalArgumentException success) {}
789      }
790  
791 <    /**
792 <     * Constructor throws if maximumPoolSize is equal to zero
791 >    /**
792 >     * Constructor throws if maximumPoolSize is equal to zero
793       */
794      public void testConstructor8() {
795          try {
796 <            new ThreadPoolExecutor(1,0,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new SimpleThreadFactory());
796 >            new ThreadPoolExecutor(1, 0, 1L, SECONDS,
797 >                                   new ArrayBlockingQueue<Runnable>(10),
798 >                                   new SimpleThreadFactory());
799              shouldThrow();
800 <        }
517 <        catch (IllegalArgumentException success){}
800 >        } catch (IllegalArgumentException success) {}
801      }
802  
803 <    /**
804 <     * Constructor throws if keepAliveTime is less than zero
803 >    /**
804 >     * Constructor throws if keepAliveTime is less than zero
805       */
806      public void testConstructor9() {
807          try {
808 <            new ThreadPoolExecutor(1,2,-1L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new SimpleThreadFactory());
808 >            new ThreadPoolExecutor(1, 2, -1L, SECONDS,
809 >                                   new ArrayBlockingQueue<Runnable>(10),
810 >                                   new SimpleThreadFactory());
811              shouldThrow();
812 <        }
528 <        catch (IllegalArgumentException success){}
812 >        } catch (IllegalArgumentException success) {}
813      }
814  
815 <    /**
816 <     * Constructor throws if corePoolSize is greater than the maximumPoolSize
815 >    /**
816 >     * Constructor throws if corePoolSize is greater than the maximumPoolSize
817       */
818      public void testConstructor10() {
819          try {
820 <            new ThreadPoolExecutor(2,1,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new SimpleThreadFactory());
820 >            new ThreadPoolExecutor(2, 1, 1L, SECONDS,
821 >                                   new ArrayBlockingQueue<Runnable>(10),
822 >                                   new SimpleThreadFactory());
823              shouldThrow();
824 <        }
539 <        catch (IllegalArgumentException success){}
824 >        } catch (IllegalArgumentException success) {}
825      }
826  
827 <    /**
828 <     * Constructor throws if workQueue is set to null
827 >    /**
828 >     * Constructor throws if workQueue is set to null
829       */
830      public void testConstructorNullPointerException2() {
831          try {
832 <            new ThreadPoolExecutor(1,2,LONG_DELAY_MS, TimeUnit.MILLISECONDS,null,new SimpleThreadFactory());
832 >            new ThreadPoolExecutor(1, 2, 1L, SECONDS,
833 >                                   (BlockingQueue) null,
834 >                                   new SimpleThreadFactory());
835              shouldThrow();
836 <        }
550 <        catch (NullPointerException success){}  
836 >        } catch (NullPointerException success) {}
837      }
838  
839 <    /**
840 <     * Constructor throws if threadFactory is set to null
839 >    /**
840 >     * Constructor throws if threadFactory is set to null
841       */
842      public void testConstructorNullPointerException3() {
843          try {
844 <            ThreadFactory f = null;
845 <            new ThreadPoolExecutor(1,2,LONG_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10),f);
844 >            new ThreadPoolExecutor(1, 2, 1L, SECONDS,
845 >                                   new ArrayBlockingQueue<Runnable>(10),
846 >                                   (ThreadFactory) null);
847              shouldThrow();
848 <        }
562 <        catch (NullPointerException success){}  
848 >        } catch (NullPointerException success) {}
849      }
850 <
851 <    
852 <    /**
567 <     * Constructor throws if corePoolSize argument is less than zero
850 >
851 >    /**
852 >     * Constructor throws if corePoolSize argument is less than zero
853       */
854      public void testConstructor11() {
855          try {
856 <            new ThreadPoolExecutor(-1,1,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new NoOpREHandler());
856 >            new ThreadPoolExecutor(-1, 1, 1L, SECONDS,
857 >                                   new ArrayBlockingQueue<Runnable>(10),
858 >                                   new NoOpREHandler());
859              shouldThrow();
860 <        }
574 <        catch (IllegalArgumentException success){}
860 >        } catch (IllegalArgumentException success) {}
861      }
862  
863 <    /**
864 <     * Constructor throws if maximumPoolSize is less than zero
863 >    /**
864 >     * Constructor throws if maximumPoolSize is less than zero
865       */
866      public void testConstructor12() {
867          try {
868 <            new ThreadPoolExecutor(1,-1,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new NoOpREHandler());
868 >            new ThreadPoolExecutor(1, -1, 1L, SECONDS,
869 >                                   new ArrayBlockingQueue<Runnable>(10),
870 >                                   new NoOpREHandler());
871              shouldThrow();
872 <        }
585 <        catch (IllegalArgumentException success){}
872 >        } catch (IllegalArgumentException success) {}
873      }
874  
875 <    /**
876 <     * Constructor throws if maximumPoolSize is equal to zero
875 >    /**
876 >     * Constructor throws if maximumPoolSize is equal to zero
877       */
878      public void testConstructor13() {
879          try {
880 <            new ThreadPoolExecutor(1,0,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new NoOpREHandler());
880 >            new ThreadPoolExecutor(1, 0, 1L, SECONDS,
881 >                                   new ArrayBlockingQueue<Runnable>(10),
882 >                                   new NoOpREHandler());
883              shouldThrow();
884 <        }
596 <        catch (IllegalArgumentException success){}
884 >        } catch (IllegalArgumentException success) {}
885      }
886  
887 <    /**
888 <     * Constructor throws if keepAliveTime is less than zero
887 >    /**
888 >     * Constructor throws if keepAliveTime is less than zero
889       */
890      public void testConstructor14() {
891          try {
892 <            new ThreadPoolExecutor(1,2,-1L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new NoOpREHandler());
892 >            new ThreadPoolExecutor(1, 2, -1L, SECONDS,
893 >                                   new ArrayBlockingQueue<Runnable>(10),
894 >                                   new NoOpREHandler());
895              shouldThrow();
896 <        }
607 <        catch (IllegalArgumentException success){}
896 >        } catch (IllegalArgumentException success) {}
897      }
898  
899 <    /**
900 <     * Constructor throws if corePoolSize is greater than the maximumPoolSize
899 >    /**
900 >     * Constructor throws if corePoolSize is greater than the maximumPoolSize
901       */
902      public void testConstructor15() {
903          try {
904 <            new ThreadPoolExecutor(2,1,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new NoOpREHandler());
904 >            new ThreadPoolExecutor(2, 1, 1L, SECONDS,
905 >                                   new ArrayBlockingQueue<Runnable>(10),
906 >                                   new NoOpREHandler());
907              shouldThrow();
908 <        }
618 <        catch (IllegalArgumentException success){}
908 >        } catch (IllegalArgumentException success) {}
909      }
910  
911 <    /**
912 <     * Constructor throws if workQueue is set to null
911 >    /**
912 >     * Constructor throws if workQueue is set to null
913       */
914      public void testConstructorNullPointerException4() {
915          try {
916 <            new ThreadPoolExecutor(1,2,LONG_DELAY_MS, TimeUnit.MILLISECONDS,null,new NoOpREHandler());
916 >            new ThreadPoolExecutor(1, 2, 1L, SECONDS,
917 >                                   (BlockingQueue) null,
918 >                                   new NoOpREHandler());
919              shouldThrow();
920 <        }
629 <        catch (NullPointerException success){}  
920 >        } catch (NullPointerException success) {}
921      }
922  
923 <    /**
924 <     * Constructor throws if handler is set to null
923 >    /**
924 >     * Constructor throws if handler is set to null
925       */
926      public void testConstructorNullPointerException5() {
927          try {
928 <            RejectedExecutionHandler r = null;
929 <            new ThreadPoolExecutor(1,2,LONG_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10),r);
928 >            new ThreadPoolExecutor(1, 2, 1L, SECONDS,
929 >                                   new ArrayBlockingQueue<Runnable>(10),
930 >                                   (RejectedExecutionHandler) null);
931              shouldThrow();
932 <        }
641 <        catch (NullPointerException success){}  
932 >        } catch (NullPointerException success) {}
933      }
934  
935 <    
936 <    /**
646 <     * Constructor throws if corePoolSize argument is less than zero
935 >    /**
936 >     * Constructor throws if corePoolSize argument is less than zero
937       */
938      public void testConstructor16() {
939          try {
940 <            new ThreadPoolExecutor(-1,1,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new SimpleThreadFactory(),new NoOpREHandler());
940 >            new ThreadPoolExecutor(-1, 1, 1L, SECONDS,
941 >                                   new ArrayBlockingQueue<Runnable>(10),
942 >                                   new SimpleThreadFactory(),
943 >                                   new NoOpREHandler());
944              shouldThrow();
945 <        }
653 <        catch (IllegalArgumentException success){}
945 >        } catch (IllegalArgumentException success) {}
946      }
947  
948 <    /**
949 <     * Constructor throws if maximumPoolSize is less than zero
948 >    /**
949 >     * Constructor throws if maximumPoolSize is less than zero
950       */
951      public void testConstructor17() {
952          try {
953 <            new ThreadPoolExecutor(1,-1,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new SimpleThreadFactory(),new NoOpREHandler());
953 >            new ThreadPoolExecutor(1, -1, 1L, SECONDS,
954 >                                   new ArrayBlockingQueue<Runnable>(10),
955 >                                   new SimpleThreadFactory(),
956 >                                   new NoOpREHandler());
957              shouldThrow();
958 <        }
664 <        catch (IllegalArgumentException success){}
958 >        } catch (IllegalArgumentException success) {}
959      }
960  
961 <    /**
962 <     * Constructor throws if maximumPoolSize is equal to zero
961 >    /**
962 >     * Constructor throws if maximumPoolSize is equal to zero
963       */
964      public void testConstructor18() {
965          try {
966 <            new ThreadPoolExecutor(1,0,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new SimpleThreadFactory(),new NoOpREHandler());
966 >            new ThreadPoolExecutor(1, 0, 1L, SECONDS,
967 >                                   new ArrayBlockingQueue<Runnable>(10),
968 >                                   new SimpleThreadFactory(),
969 >                                   new NoOpREHandler());
970              shouldThrow();
971 <        }
675 <        catch (IllegalArgumentException success){}
971 >        } catch (IllegalArgumentException success) {}
972      }
973  
974 <    /**
975 <     * Constructor throws if keepAliveTime is less than zero
974 >    /**
975 >     * Constructor throws if keepAliveTime is less than zero
976       */
977      public void testConstructor19() {
978          try {
979 <            new ThreadPoolExecutor(1,2,-1L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new SimpleThreadFactory(),new NoOpREHandler());
979 >            new ThreadPoolExecutor(1, 2, -1L, SECONDS,
980 >                                   new ArrayBlockingQueue<Runnable>(10),
981 >                                   new SimpleThreadFactory(),
982 >                                   new NoOpREHandler());
983              shouldThrow();
984 <        }
686 <        catch (IllegalArgumentException success){}
984 >        } catch (IllegalArgumentException success) {}
985      }
986  
987 <    /**
988 <     * Constructor throws if corePoolSize is greater than the maximumPoolSize
987 >    /**
988 >     * Constructor throws if corePoolSize is greater than the maximumPoolSize
989       */
990      public void testConstructor20() {
991          try {
992 <            new ThreadPoolExecutor(2,1,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new SimpleThreadFactory(),new NoOpREHandler());
992 >            new ThreadPoolExecutor(2, 1, 1L, SECONDS,
993 >                                   new ArrayBlockingQueue<Runnable>(10),
994 >                                   new SimpleThreadFactory(),
995 >                                   new NoOpREHandler());
996              shouldThrow();
997 <        }
697 <        catch (IllegalArgumentException success){}
997 >        } catch (IllegalArgumentException success) {}
998      }
999  
1000 <    /**
1001 <     * Constructor throws if workQueue is set to null
1000 >    /**
1001 >     * Constructor throws if workQueue is null
1002       */
1003      public void testConstructorNullPointerException6() {
1004          try {
1005 <            new ThreadPoolExecutor(1,2,LONG_DELAY_MS, TimeUnit.MILLISECONDS,null,new SimpleThreadFactory(),new NoOpREHandler());
1005 >            new ThreadPoolExecutor(1, 2, 1L, SECONDS,
1006 >                                   (BlockingQueue) null,
1007 >                                   new SimpleThreadFactory(),
1008 >                                   new NoOpREHandler());
1009              shouldThrow();
1010 <        }
708 <        catch (NullPointerException success){}  
1010 >        } catch (NullPointerException success) {}
1011      }
1012  
1013 <    /**
1014 <     * Constructor throws if handler is set to null
1013 >    /**
1014 >     * Constructor throws if handler is null
1015       */
1016      public void testConstructorNullPointerException7() {
1017          try {
1018 <            RejectedExecutionHandler r = null;
1019 <            new ThreadPoolExecutor(1,2,LONG_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10),new SimpleThreadFactory(),r);
1018 >            new ThreadPoolExecutor(1, 2, 1L, SECONDS,
1019 >                                   new ArrayBlockingQueue<Runnable>(10),
1020 >                                   new SimpleThreadFactory(),
1021 >                                   (RejectedExecutionHandler) null);
1022              shouldThrow();
1023 <        }
720 <        catch (NullPointerException success){}  
1023 >        } catch (NullPointerException success) {}
1024      }
1025  
723    /**
724     * Constructor throws if ThreadFactory is set top null
725     */
726    public void testConstructorNullPointerException8() {
727        try {
728            ThreadFactory f = null;
729            new ThreadPoolExecutor(1,2,LONG_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10),f,new NoOpREHandler());
730            shouldThrow();
731        }
732        catch (NullPointerException successdn8){}  
733    }
734    
735
1026      /**
1027 <     *  execute throws RejectedExecutionException
738 <     *  if saturated.
1027 >     * Constructor throws if ThreadFactory is null
1028       */
1029 <    public void testSaturatedExecute() {
741 <        ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1));
1029 >    public void testConstructorNullPointerException8() {
1030          try {
1031 <            
1032 <            for(int i = 0; i < 5; ++i){
1033 <                p.execute(new MediumRunnable());
1031 >            new ThreadPoolExecutor(1, 2, 1L, SECONDS,
1032 >                                   new ArrayBlockingQueue<Runnable>(10),
1033 >                                   (ThreadFactory) null,
1034 >                                   new NoOpREHandler());
1035 >            shouldThrow();
1036 >        } catch (NullPointerException success) {}
1037 >    }
1038 >
1039 >    /**
1040 >     * get of submitted callable throws InterruptedException if interrupted
1041 >     */
1042 >    public void testInterruptedSubmit() throws InterruptedException {
1043 >        final CountDownLatch done = new CountDownLatch(1);
1044 >        final ThreadPoolExecutor p =
1045 >            new ThreadPoolExecutor(1, 1,
1046 >                                   60, SECONDS,
1047 >                                   new ArrayBlockingQueue<Runnable>(10));
1048 >
1049 >        try (PoolCleaner cleaner = cleaner(p, done)) {
1050 >            final CountDownLatch threadStarted = new CountDownLatch(1);
1051 >            Thread t = newStartedThread(new CheckedInterruptedRunnable() {
1052 >                public void realRun() throws Exception {
1053 >                    Callable task = new CheckedCallable<Boolean>() {
1054 >                        public Boolean realCall() throws InterruptedException {
1055 >                            threadStarted.countDown();
1056 >                            await(done);
1057 >                            return Boolean.TRUE;
1058 >                        }};
1059 >                    p.submit(task).get();
1060 >                }});
1061 >
1062 >            await(threadStarted); // ensure quiescence
1063 >            t.interrupt();
1064 >            awaitTermination(t);
1065 >        }
1066 >    }
1067 >
1068 >    /**
1069 >     * Submitted tasks are rejected when saturated or shutdown
1070 >     */
1071 >    public void testSubmittedTasksRejectedWhenSaturatedOrShutdown() throws InterruptedException {
1072 >        final ThreadPoolExecutor p = new ThreadPoolExecutor(
1073 >            1, 1, 1, SECONDS, new ArrayBlockingQueue<Runnable>(1));
1074 >        final int saturatedSize = saturatedSize(p);
1075 >        final ThreadLocalRandom rnd = ThreadLocalRandom.current();
1076 >        final CountDownLatch threadsStarted = new CountDownLatch(p.getMaximumPoolSize());
1077 >        final CountDownLatch done = new CountDownLatch(1);
1078 >        final Runnable r = () -> {
1079 >            threadsStarted.countDown();
1080 >            for (;;) {
1081 >                try {
1082 >                    done.await();
1083 >                    return;
1084 >                } catch (InterruptedException shutdownNowDeliberatelyIgnored) {}
1085 >            }};
1086 >        final Callable<Boolean> c = () -> {
1087 >            threadsStarted.countDown();
1088 >            for (;;) {
1089 >                try {
1090 >                    done.await();
1091 >                    return Boolean.TRUE;
1092 >                } catch (InterruptedException shutdownNowDeliberatelyIgnored) {}
1093 >            }};
1094 >        final boolean shutdownNow = rnd.nextBoolean();
1095 >
1096 >        try (PoolCleaner cleaner = cleaner(p, done)) {
1097 >            // saturate
1098 >            for (int i = saturatedSize; i--> 0; ) {
1099 >                switch (rnd.nextInt(4)) {
1100 >                case 0: p.execute(r); break;
1101 >                case 1: assertFalse(p.submit(r).isDone()); break;
1102 >                case 2: assertFalse(p.submit(r, Boolean.TRUE).isDone()); break;
1103 >                case 3: assertFalse(p.submit(c).isDone()); break;
1104 >                }
1105              }
747            shouldThrow();
748        } catch(RejectedExecutionException success){}
749        joinPool(p);
750    }
1106  
1107 <    /**
1108 <     *  executor using CallerRunsPolicy runs task if saturated.
754 <     */
755 <    public void testSaturatedExecute2() {
756 <        RejectedExecutionHandler h = new ThreadPoolExecutor.CallerRunsPolicy();
757 <        ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1), h);
758 <        try {
759 <            
760 <            TrackedNoOpRunnable[] tasks = new TrackedNoOpRunnable[5];
761 <            for(int i = 0; i < 5; ++i){
762 <                tasks[i] = new TrackedNoOpRunnable();
763 <            }
764 <            TrackedLongRunnable mr = new TrackedLongRunnable();
765 <            p.execute(mr);
766 <            for(int i = 0; i < 5; ++i){
767 <                p.execute(tasks[i]);
768 <            }
769 <            for(int i = 1; i < 5; ++i) {
770 <                assertTrue(tasks[i].done);
771 <            }
772 <            try { p.shutdownNow(); } catch(SecurityException ok) { return; }
773 <        } catch(RejectedExecutionException ex){
774 <            unexpectedException();
775 <        } finally {
776 <            joinPool(p);
777 <        }
778 <    }
1107 >            await(threadsStarted);
1108 >            assertTaskSubmissionsAreRejected(p);
1109  
1110 <    /**
1111 <     *  executor using DiscardPolicy drops task if saturated.
1112 <     */
1113 <    public void testSaturatedExecute3() {
1114 <        RejectedExecutionHandler h = new ThreadPoolExecutor.DiscardPolicy();
1115 <        ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1), h);
1116 <        try {
1117 <            
1118 <            TrackedNoOpRunnable[] tasks = new TrackedNoOpRunnable[5];
1119 <            for(int i = 0; i < 5; ++i){
1120 <                tasks[i] = new TrackedNoOpRunnable();
1121 <            }
1122 <            p.execute(new TrackedLongRunnable());
1123 <            for(int i = 0; i < 5; ++i){
1124 <                p.execute(tasks[i]);
1125 <            }
796 <            for(int i = 0; i < 5; ++i){
797 <                assertFalse(tasks[i].done);
798 <            }
799 <            try { p.shutdownNow(); } catch(SecurityException ok) { return; }
800 <        } catch(RejectedExecutionException ex){
801 <            unexpectedException();
802 <        } finally {
803 <            joinPool(p);
804 <        }
1110 >            if (shutdownNow)
1111 >                p.shutdownNow();
1112 >            else
1113 >                p.shutdown();
1114 >            // Pool is shutdown, but not yet terminated
1115 >            assertTaskSubmissionsAreRejected(p);
1116 >            assertFalse(p.isTerminated());
1117 >
1118 >            done.countDown();   // release blocking tasks
1119 >            assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
1120 >
1121 >            assertTaskSubmissionsAreRejected(p);
1122 >        }
1123 >        assertEquals(saturatedSize(p)
1124 >                     - (shutdownNow ? p.getQueue().remainingCapacity() : 0),
1125 >                     p.getCompletedTaskCount());
1126      }
1127  
1128      /**
1129 <     *  executor using DiscardOldestPolicy drops oldest task if saturated.
1130 <     */
1131 <    public void testSaturatedExecute4() {
1132 <        RejectedExecutionHandler h = new ThreadPoolExecutor.DiscardOldestPolicy();
1133 <        ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1), h);
1134 <        try {
1135 <            p.execute(new TrackedLongRunnable());
1136 <            TrackedLongRunnable r2 = new TrackedLongRunnable();
1129 >     * executor using DiscardOldestPolicy drops oldest task if saturated.
1130 >     */
1131 >    public void testSaturatedExecute_DiscardOldestPolicy() {
1132 >        final CountDownLatch done = new CountDownLatch(1);
1133 >        LatchAwaiter r1 = awaiter(done);
1134 >        LatchAwaiter r2 = awaiter(done);
1135 >        LatchAwaiter r3 = awaiter(done);
1136 >        final ThreadPoolExecutor p =
1137 >            new ThreadPoolExecutor(1, 1,
1138 >                                   LONG_DELAY_MS, MILLISECONDS,
1139 >                                   new ArrayBlockingQueue<Runnable>(1),
1140 >                                   new DiscardOldestPolicy());
1141 >        try (PoolCleaner cleaner = cleaner(p, done)) {
1142 >            assertEquals(LatchAwaiter.NEW, r1.state);
1143 >            assertEquals(LatchAwaiter.NEW, r2.state);
1144 >            assertEquals(LatchAwaiter.NEW, r3.state);
1145 >            p.execute(r1);
1146              p.execute(r2);
1147              assertTrue(p.getQueue().contains(r2));
818            TrackedNoOpRunnable r3 = new TrackedNoOpRunnable();
1148              p.execute(r3);
1149              assertFalse(p.getQueue().contains(r2));
1150              assertTrue(p.getQueue().contains(r3));
822            try { p.shutdownNow(); } catch(SecurityException ok) { return; }
823        } catch(RejectedExecutionException ex){
824            unexpectedException();
825        } finally {
826            joinPool(p);
1151          }
1152 +        assertEquals(LatchAwaiter.DONE, r1.state);
1153 +        assertEquals(LatchAwaiter.NEW, r2.state);
1154 +        assertEquals(LatchAwaiter.DONE, r3.state);
1155      }
1156  
1157      /**
1158 <     *  execute throws RejectedExecutionException if shutdown
832 <     */
833 <    public void testRejectedExecutionExceptionOnShutdown() {
834 <        ThreadPoolExecutor tpe =
835 <            new ThreadPoolExecutor(1,1,LONG_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(1));
836 <        try { tpe.shutdown(); } catch(SecurityException ok) { return; }
837 <        try {
838 <            tpe.execute(new NoOpRunnable());
839 <            shouldThrow();
840 <        } catch(RejectedExecutionException success){}
841 <        
842 <        joinPool(tpe);
843 <    }
844 <
845 <    /**
846 <     *  execute using CallerRunsPolicy drops task on shutdown
1158 >     * execute using DiscardOldestPolicy drops task on shutdown
1159       */
1160 <    public void testCallerRunsOnShutdown() {
1161 <        RejectedExecutionHandler h = new ThreadPoolExecutor.CallerRunsPolicy();
1162 <        ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1), h);
1160 >    public void testDiscardOldestOnShutdown() {
1161 >        final ThreadPoolExecutor p =
1162 >            new ThreadPoolExecutor(1, 1,
1163 >                                   LONG_DELAY_MS, MILLISECONDS,
1164 >                                   new ArrayBlockingQueue<Runnable>(1),
1165 >                                   new DiscardOldestPolicy());
1166  
1167 <        try { p.shutdown(); } catch(SecurityException ok) { return; }
1168 <        try {
1167 >        try { p.shutdown(); } catch (SecurityException ok) { return; }
1168 >        try (PoolCleaner cleaner = cleaner(p)) {
1169              TrackedNoOpRunnable r = new TrackedNoOpRunnable();
1170 <            p.execute(r);
1170 >            p.execute(r);
1171              assertFalse(r.done);
857        } catch(RejectedExecutionException success){
858            unexpectedException();
859        } finally {
860            joinPool(p);
1172          }
1173      }
1174  
1175      /**
1176 <     *  execute using DiscardPolicy drops task on shutdown
1176 >     * Submitting null tasks throws NullPointerException
1177       */
1178 <    public void testDiscardOnShutdown() {
1179 <        RejectedExecutionHandler h = new ThreadPoolExecutor.DiscardPolicy();
1180 <        ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1), h);
1181 <
1182 <        try { p.shutdown(); } catch(SecurityException ok) { return; }
1183 <        try {
1184 <            TrackedNoOpRunnable r = new TrackedNoOpRunnable();
874 <            p.execute(r);
875 <            assertFalse(r.done);
876 <        } catch(RejectedExecutionException success){
877 <            unexpectedException();
878 <        } finally {
879 <            joinPool(p);
1178 >    public void testNullTaskSubmission() {
1179 >        final ThreadPoolExecutor p =
1180 >            new ThreadPoolExecutor(1, 2,
1181 >                                   1L, SECONDS,
1182 >                                   new ArrayBlockingQueue<Runnable>(10));
1183 >        try (PoolCleaner cleaner = cleaner(p)) {
1184 >            assertNullTaskSubmissionThrowsNullPointerException(p);
1185          }
1186      }
1187  
883
1188      /**
1189 <     *  execute using DiscardOldestPolicy drops task on shutdown
1189 >     * setCorePoolSize of negative value throws IllegalArgumentException
1190       */
1191 <    public void testDiscardOldestOnShutdown() {
1192 <        RejectedExecutionHandler h = new ThreadPoolExecutor.DiscardOldestPolicy();
1193 <        ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1), h);
1194 <
1195 <        try { p.shutdown(); } catch(SecurityException ok) { return; }
1196 <        try {
1197 <            TrackedNoOpRunnable r = new TrackedNoOpRunnable();
1198 <            p.execute(r);
1199 <            assertFalse(r.done);
1200 <        } catch(RejectedExecutionException success){
897 <            unexpectedException();
898 <        } finally {
899 <            joinPool(p);
1191 >    public void testCorePoolSizeIllegalArgumentException() {
1192 >        final ThreadPoolExecutor p =
1193 >            new ThreadPoolExecutor(1, 2,
1194 >                                   LONG_DELAY_MS, MILLISECONDS,
1195 >                                   new ArrayBlockingQueue<Runnable>(10));
1196 >        try (PoolCleaner cleaner = cleaner(p)) {
1197 >            try {
1198 >                p.setCorePoolSize(-1);
1199 >                shouldThrow();
1200 >            } catch (IllegalArgumentException success) {}
1201          }
1202      }
1203  
903
904    /**
905     *  execute (null) throws NPE
906     */
907    public void testExecuteNull() {
908        ThreadPoolExecutor tpe = null;
909        try {
910            tpe = new ThreadPoolExecutor(1,2,LONG_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10));
911            tpe.execute(null);
912            shouldThrow();
913        } catch(NullPointerException success){}
914        
915        joinPool(tpe);
916    }
917    
1204      /**
1205 <     *  setCorePoolSize of negative value throws IllegalArgumentException
1205 >     * setMaximumPoolSize(int) throws IllegalArgumentException if
1206 >     * given a value less the core pool size
1207       */
921    public void testCorePoolSizeIllegalArgumentException() {
922        ThreadPoolExecutor tpe = null;
923        try {
924            tpe = new ThreadPoolExecutor(1,2,LONG_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10));
925        } catch(Exception e){}
926        try {
927            tpe.setCorePoolSize(-1);
928            shouldThrow();
929        } catch(IllegalArgumentException success){
930        } finally {
931            try { tpe.shutdown(); } catch(SecurityException ok) { return; }
932        }
933        joinPool(tpe);
934    }  
935
936    /**
937     *  setMaximumPoolSize(int) throws IllegalArgumentException if
938     *  given a value less the core pool size
939     */  
1208      public void testMaximumPoolSizeIllegalArgumentException() {
1209 <        ThreadPoolExecutor tpe = null;
1210 <        try {
1211 <            tpe = new ThreadPoolExecutor(2,3,LONG_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10));
1212 <        } catch(Exception e){}
1213 <        try {
1214 <            tpe.setMaximumPoolSize(1);
1215 <            shouldThrow();
1216 <        } catch(IllegalArgumentException success){
1217 <        } finally {
950 <            try { tpe.shutdown(); } catch(SecurityException ok) { return; }
1209 >        final ThreadPoolExecutor p =
1210 >            new ThreadPoolExecutor(2, 3,
1211 >                                   LONG_DELAY_MS, MILLISECONDS,
1212 >                                   new ArrayBlockingQueue<Runnable>(10));
1213 >        try (PoolCleaner cleaner = cleaner(p)) {
1214 >            try {
1215 >                p.setMaximumPoolSize(1);
1216 >                shouldThrow();
1217 >            } catch (IllegalArgumentException success) {}
1218          }
952        joinPool(tpe);
1219      }
1220 <    
1220 >
1221      /**
1222 <     *  setMaximumPoolSize throws IllegalArgumentException
1223 <     *  if given a negative value
1222 >     * setMaximumPoolSize throws IllegalArgumentException
1223 >     * if given a negative value
1224       */
1225      public void testMaximumPoolSizeIllegalArgumentException2() {
1226 <        ThreadPoolExecutor tpe = null;
1227 <        try {
1228 <            tpe = new ThreadPoolExecutor(2,3,LONG_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10));
1229 <        } catch(Exception e){}
1230 <        try {
1231 <            tpe.setMaximumPoolSize(-1);
1232 <            shouldThrow();
1233 <        } catch(IllegalArgumentException success){
1234 <        } finally {
969 <            try { tpe.shutdown(); } catch(SecurityException ok) { return; }
1226 >        final ThreadPoolExecutor p =
1227 >            new ThreadPoolExecutor(2, 3,
1228 >                                   LONG_DELAY_MS, MILLISECONDS,
1229 >                                   new ArrayBlockingQueue<Runnable>(10));
1230 >        try (PoolCleaner cleaner = cleaner(p)) {
1231 >            try {
1232 >                p.setMaximumPoolSize(-1);
1233 >                shouldThrow();
1234 >            } catch (IllegalArgumentException success) {}
1235          }
971        joinPool(tpe);
1236      }
973    
1237  
1238      /**
1239 <     *  setKeepAliveTime  throws IllegalArgumentException
1240 <     *  when given a negative value
1239 >     * Configuration changes that allow core pool size greater than
1240 >     * max pool size result in IllegalArgumentException.
1241 >     */
1242 >    public void testPoolSizeInvariants() {
1243 >        final ThreadPoolExecutor p =
1244 >            new ThreadPoolExecutor(1, 1,
1245 >                                   LONG_DELAY_MS, MILLISECONDS,
1246 >                                   new ArrayBlockingQueue<Runnable>(10));
1247 >        try (PoolCleaner cleaner = cleaner(p)) {
1248 >            for (int s = 1; s < 5; s++) {
1249 >                p.setMaximumPoolSize(s);
1250 >                p.setCorePoolSize(s);
1251 >                try {
1252 >                    p.setMaximumPoolSize(s - 1);
1253 >                    shouldThrow();
1254 >                } catch (IllegalArgumentException success) {}
1255 >                assertEquals(s, p.getCorePoolSize());
1256 >                assertEquals(s, p.getMaximumPoolSize());
1257 >                try {
1258 >                    p.setCorePoolSize(s + 1);
1259 >                    shouldThrow();
1260 >                } catch (IllegalArgumentException success) {}
1261 >                assertEquals(s, p.getCorePoolSize());
1262 >                assertEquals(s, p.getMaximumPoolSize());
1263 >            }
1264 >        }
1265 >    }
1266 >
1267 >    /**
1268 >     * setKeepAliveTime throws IllegalArgumentException
1269 >     * when given a negative value
1270       */
1271      public void testKeepAliveTimeIllegalArgumentException() {
1272 <        ThreadPoolExecutor tpe = null;
1273 <        try {
1274 <            tpe = new ThreadPoolExecutor(2,3,LONG_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10));
1275 <        } catch(Exception e){}
1276 <        
1277 <        try {
1278 <            tpe.setKeepAliveTime(-1,TimeUnit.MILLISECONDS);
1279 <            shouldThrow();
1280 <        } catch(IllegalArgumentException success){
989 <        } finally {
990 <            try { tpe.shutdown(); } catch(SecurityException ok) { return; }
1272 >        final ThreadPoolExecutor p =
1273 >            new ThreadPoolExecutor(2, 3,
1274 >                                   LONG_DELAY_MS, MILLISECONDS,
1275 >                                   new ArrayBlockingQueue<Runnable>(10));
1276 >        try (PoolCleaner cleaner = cleaner(p)) {
1277 >            try {
1278 >                p.setKeepAliveTime(-1, MILLISECONDS);
1279 >                shouldThrow();
1280 >            } catch (IllegalArgumentException success) {}
1281          }
992        joinPool(tpe);
1282      }
1283  
1284      /**
1285       * terminated() is called on termination
1286       */
1287      public void testTerminated() {
1288 <        ExtendedTPE tpe = new ExtendedTPE();
1289 <        try { tpe.shutdown(); } catch(SecurityException ok) { return; }
1290 <        assertTrue(tpe.terminatedCalled);
1291 <        joinPool(tpe);
1288 >        ExtendedTPE p = new ExtendedTPE();
1289 >        try (PoolCleaner cleaner = cleaner(p)) {
1290 >            try { p.shutdown(); } catch (SecurityException ok) { return; }
1291 >            assertTrue(p.terminatedCalled());
1292 >            assertTrue(p.isShutdown());
1293 >        }
1294      }
1295  
1296      /**
1297       * beforeExecute and afterExecute are called when executing task
1298       */
1299 <    public void testBeforeAfter() {
1300 <        ExtendedTPE tpe = new ExtendedTPE();
1301 <        try {
1302 <            TrackedNoOpRunnable r = new TrackedNoOpRunnable();
1303 <            tpe.execute(r);
1304 <            Thread.sleep(SHORT_DELAY_MS);
1305 <            assertTrue(r.done);
1306 <            assertTrue(tpe.beforeCalled);
1307 <            assertTrue(tpe.afterCalled);
1308 <            try { tpe.shutdown(); } catch(SecurityException ok) { return; }
1309 <        }
1310 <        catch(Exception ex) {
1020 <            unexpectedException();
1021 <        } finally {
1022 <            joinPool(tpe);
1299 >    public void testBeforeAfter() throws InterruptedException {
1300 >        ExtendedTPE p = new ExtendedTPE();
1301 >        try (PoolCleaner cleaner = cleaner(p)) {
1302 >            final CountDownLatch done = new CountDownLatch(1);
1303 >            p.execute(new CheckedRunnable() {
1304 >                public void realRun() {
1305 >                    done.countDown();
1306 >                }});
1307 >            await(p.afterCalled);
1308 >            assertEquals(0, done.getCount());
1309 >            assertTrue(p.afterCalled());
1310 >            assertTrue(p.beforeCalled());
1311          }
1312      }
1313  
1314      /**
1315       * completed submit of callable returns result
1316       */
1317 <    public void testSubmitCallable() {
1318 <        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1319 <        try {
1317 >    public void testSubmitCallable() throws Exception {
1318 >        final ExecutorService e =
1319 >            new ThreadPoolExecutor(2, 2,
1320 >                                   LONG_DELAY_MS, MILLISECONDS,
1321 >                                   new ArrayBlockingQueue<Runnable>(10));
1322 >        try (PoolCleaner cleaner = cleaner(e)) {
1323              Future<String> future = e.submit(new StringTask());
1324              String result = future.get();
1325              assertSame(TEST_STRING, result);
1326          }
1036        catch (ExecutionException ex) {
1037            unexpectedException();
1038        }
1039        catch (InterruptedException ex) {
1040            unexpectedException();
1041        } finally {
1042            joinPool(e);
1043        }
1327      }
1328  
1329      /**
1330       * completed submit of runnable returns successfully
1331       */
1332 <    public void testSubmitRunnable() {
1333 <        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1334 <        try {
1332 >    public void testSubmitRunnable() throws Exception {
1333 >        final ExecutorService e =
1334 >            new ThreadPoolExecutor(2, 2,
1335 >                                   LONG_DELAY_MS, MILLISECONDS,
1336 >                                   new ArrayBlockingQueue<Runnable>(10));
1337 >        try (PoolCleaner cleaner = cleaner(e)) {
1338              Future<?> future = e.submit(new NoOpRunnable());
1339              future.get();
1340              assertTrue(future.isDone());
1341          }
1056        catch (ExecutionException ex) {
1057            unexpectedException();
1058        }
1059        catch (InterruptedException ex) {
1060            unexpectedException();
1061        } finally {
1062            joinPool(e);
1063        }
1342      }
1343  
1344      /**
1345       * completed submit of (runnable, result) returns result
1346       */
1347 <    public void testSubmitRunnable2() {
1348 <        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1349 <        try {
1347 >    public void testSubmitRunnable2() throws Exception {
1348 >        final ExecutorService e =
1349 >            new ThreadPoolExecutor(2, 2,
1350 >                                   LONG_DELAY_MS, MILLISECONDS,
1351 >                                   new ArrayBlockingQueue<Runnable>(10));
1352 >        try (PoolCleaner cleaner = cleaner(e)) {
1353              Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING);
1354              String result = future.get();
1355              assertSame(TEST_STRING, result);
1356          }
1076        catch (ExecutionException ex) {
1077            unexpectedException();
1078        }
1079        catch (InterruptedException ex) {
1080            unexpectedException();
1081        } finally {
1082            joinPool(e);
1083        }
1357      }
1358  
1086
1087
1088
1089
1359      /**
1360       * invokeAny(null) throws NPE
1361       */
1362 <    public void testInvokeAny1() {
1363 <        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1364 <        try {
1365 <            e.invokeAny(null);
1366 <        } catch (NullPointerException success) {
1367 <        } catch(Exception ex) {
1368 <            unexpectedException();
1369 <        } finally {
1370 <            joinPool(e);
1362 >    public void testInvokeAny1() throws Exception {
1363 >        final ExecutorService e =
1364 >            new ThreadPoolExecutor(2, 2,
1365 >                                   LONG_DELAY_MS, MILLISECONDS,
1366 >                                   new ArrayBlockingQueue<Runnable>(10));
1367 >        try (PoolCleaner cleaner = cleaner(e)) {
1368 >            try {
1369 >                e.invokeAny(null);
1370 >                shouldThrow();
1371 >            } catch (NullPointerException success) {}
1372          }
1373      }
1374  
1375      /**
1376 <     * invokeAny(empty collection) throws IAE
1376 >     * invokeAny(empty collection) throws IllegalArgumentException
1377       */
1378 <    public void testInvokeAny2() {
1379 <        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1380 <        try {
1381 <            e.invokeAny(new ArrayList<Callable<String>>());
1382 <        } catch (IllegalArgumentException success) {
1383 <        } catch(Exception ex) {
1384 <            unexpectedException();
1385 <        } finally {
1386 <            joinPool(e);
1378 >    public void testInvokeAny2() throws Exception {
1379 >        final ExecutorService e =
1380 >            new ThreadPoolExecutor(2, 2,
1381 >                                   LONG_DELAY_MS, MILLISECONDS,
1382 >                                   new ArrayBlockingQueue<Runnable>(10));
1383 >        try (PoolCleaner cleaner = cleaner(e)) {
1384 >            try {
1385 >                e.invokeAny(new ArrayList<Callable<String>>());
1386 >                shouldThrow();
1387 >            } catch (IllegalArgumentException success) {}
1388          }
1389      }
1390  
1391      /**
1392       * invokeAny(c) throws NPE if c has null elements
1393       */
1394 <    public void testInvokeAny3() {
1395 <        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1396 <        try {
1397 <            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1398 <            l.add(new StringTask());
1394 >    public void testInvokeAny3() throws Exception {
1395 >        final CountDownLatch latch = new CountDownLatch(1);
1396 >        final ExecutorService e =
1397 >            new ThreadPoolExecutor(2, 2,
1398 >                                   LONG_DELAY_MS, MILLISECONDS,
1399 >                                   new ArrayBlockingQueue<Runnable>(10));
1400 >        try (PoolCleaner cleaner = cleaner(e)) {
1401 >            List<Callable<String>> l = new ArrayList<>();
1402 >            l.add(latchAwaitingStringTask(latch));
1403              l.add(null);
1404 <            e.invokeAny(l);
1405 <        } catch (NullPointerException success) {
1406 <        } catch(Exception ex) {
1407 <            unexpectedException();
1408 <        } finally {
1134 <            joinPool(e);
1404 >            try {
1405 >                e.invokeAny(l);
1406 >                shouldThrow();
1407 >            } catch (NullPointerException success) {}
1408 >            latch.countDown();
1409          }
1410      }
1411  
1412      /**
1413       * invokeAny(c) throws ExecutionException if no task completes
1414       */
1415 <    public void testInvokeAny4() {
1416 <        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1417 <        try {
1418 <            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1415 >    public void testInvokeAny4() throws Exception {
1416 >        final ExecutorService e =
1417 >            new ThreadPoolExecutor(2, 2,
1418 >                                   LONG_DELAY_MS, MILLISECONDS,
1419 >                                   new ArrayBlockingQueue<Runnable>(10));
1420 >        try (PoolCleaner cleaner = cleaner(e)) {
1421 >            List<Callable<String>> l = new ArrayList<>();
1422              l.add(new NPETask());
1423 <            e.invokeAny(l);
1424 <        } catch (ExecutionException success) {
1425 <        } catch(Exception ex) {
1426 <            unexpectedException();
1427 <        } finally {
1428 <            joinPool(e);
1423 >            try {
1424 >                e.invokeAny(l);
1425 >                shouldThrow();
1426 >            } catch (ExecutionException success) {
1427 >                assertTrue(success.getCause() instanceof NullPointerException);
1428 >            }
1429          }
1430      }
1431  
1432      /**
1433       * invokeAny(c) returns result of some task
1434       */
1435 <    public void testInvokeAny5() {
1436 <        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1437 <        try {
1438 <            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1435 >    public void testInvokeAny5() throws Exception {
1436 >        final ExecutorService e =
1437 >            new ThreadPoolExecutor(2, 2,
1438 >                                   LONG_DELAY_MS, MILLISECONDS,
1439 >                                   new ArrayBlockingQueue<Runnable>(10));
1440 >        try (PoolCleaner cleaner = cleaner(e)) {
1441 >            List<Callable<String>> l = new ArrayList<>();
1442              l.add(new StringTask());
1443              l.add(new StringTask());
1444              String result = e.invokeAny(l);
1445              assertSame(TEST_STRING, result);
1166        } catch (ExecutionException success) {
1167        } catch(Exception ex) {
1168            unexpectedException();
1169        } finally {
1170            joinPool(e);
1446          }
1447      }
1448  
1449      /**
1450       * invokeAll(null) throws NPE
1451       */
1452 <    public void testInvokeAll1() {
1453 <        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1454 <        try {
1455 <            e.invokeAll(null);
1456 <        } catch (NullPointerException success) {
1457 <        } catch(Exception ex) {
1458 <            unexpectedException();
1459 <        } finally {
1460 <            joinPool(e);
1452 >    public void testInvokeAll1() throws Exception {
1453 >        final ExecutorService e =
1454 >            new ThreadPoolExecutor(2, 2,
1455 >                                   LONG_DELAY_MS, MILLISECONDS,
1456 >                                   new ArrayBlockingQueue<Runnable>(10));
1457 >        try (PoolCleaner cleaner = cleaner(e)) {
1458 >            try {
1459 >                e.invokeAll(null);
1460 >                shouldThrow();
1461 >            } catch (NullPointerException success) {}
1462          }
1463      }
1464  
1465      /**
1466 <     * invokeAll(empty collection) returns empty collection
1466 >     * invokeAll(empty collection) returns empty list
1467       */
1468 <    public void testInvokeAll2() {
1469 <        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1470 <        try {
1471 <            List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>());
1468 >    public void testInvokeAll2() throws InterruptedException {
1469 >        final ExecutorService e =
1470 >            new ThreadPoolExecutor(2, 2,
1471 >                                   LONG_DELAY_MS, MILLISECONDS,
1472 >                                   new ArrayBlockingQueue<Runnable>(10));
1473 >        final Collection<Callable<String>> emptyCollection
1474 >            = Collections.emptyList();
1475 >        try (PoolCleaner cleaner = cleaner(e)) {
1476 >            List<Future<String>> r = e.invokeAll(emptyCollection);
1477              assertTrue(r.isEmpty());
1197        } catch(Exception ex) {
1198            unexpectedException();
1199        } finally {
1200            joinPool(e);
1478          }
1479      }
1480  
1481      /**
1482       * invokeAll(c) throws NPE if c has null elements
1483       */
1484 <    public void testInvokeAll3() {
1485 <        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1486 <        try {
1487 <            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1484 >    public void testInvokeAll3() throws Exception {
1485 >        final ExecutorService e =
1486 >            new ThreadPoolExecutor(2, 2,
1487 >                                   LONG_DELAY_MS, MILLISECONDS,
1488 >                                   new ArrayBlockingQueue<Runnable>(10));
1489 >        try (PoolCleaner cleaner = cleaner(e)) {
1490 >            List<Callable<String>> l = new ArrayList<>();
1491              l.add(new StringTask());
1492              l.add(null);
1493 <            e.invokeAll(l);
1494 <        } catch (NullPointerException success) {
1495 <        } catch(Exception ex) {
1496 <            unexpectedException();
1217 <        } finally {
1218 <            joinPool(e);
1493 >            try {
1494 >                e.invokeAll(l);
1495 >                shouldThrow();
1496 >            } catch (NullPointerException success) {}
1497          }
1498      }
1499  
1500      /**
1501       * get of element of invokeAll(c) throws exception on failed task
1502       */
1503 <    public void testInvokeAll4() {
1504 <        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1505 <        try {
1506 <            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1503 >    public void testInvokeAll4() throws Exception {
1504 >        final ExecutorService e =
1505 >            new ThreadPoolExecutor(2, 2,
1506 >                                   LONG_DELAY_MS, MILLISECONDS,
1507 >                                   new ArrayBlockingQueue<Runnable>(10));
1508 >        try (PoolCleaner cleaner = cleaner(e)) {
1509 >            List<Callable<String>> l = new ArrayList<>();
1510              l.add(new NPETask());
1511 <            List<Future<String>> result = e.invokeAll(l);
1512 <            assertEquals(1, result.size());
1513 <            for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
1514 <                it.next().get();
1515 <        } catch(ExecutionException success) {
1516 <        } catch(Exception ex) {
1517 <            unexpectedException();
1518 <        } finally {
1238 <            joinPool(e);
1511 >            List<Future<String>> futures = e.invokeAll(l);
1512 >            assertEquals(1, futures.size());
1513 >            try {
1514 >                futures.get(0).get();
1515 >                shouldThrow();
1516 >            } catch (ExecutionException success) {
1517 >                assertTrue(success.getCause() instanceof NullPointerException);
1518 >            }
1519          }
1520      }
1521  
1522      /**
1523       * invokeAll(c) returns results of all completed tasks
1524       */
1525 <    public void testInvokeAll5() {
1526 <        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1527 <        try {
1528 <            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1525 >    public void testInvokeAll5() throws Exception {
1526 >        final ExecutorService e =
1527 >            new ThreadPoolExecutor(2, 2,
1528 >                                   LONG_DELAY_MS, MILLISECONDS,
1529 >                                   new ArrayBlockingQueue<Runnable>(10));
1530 >        try (PoolCleaner cleaner = cleaner(e)) {
1531 >            List<Callable<String>> l = new ArrayList<>();
1532              l.add(new StringTask());
1533              l.add(new StringTask());
1534 <            List<Future<String>> result = e.invokeAll(l);
1535 <            assertEquals(2, result.size());
1536 <            for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
1537 <                assertSame(TEST_STRING, it.next().get());
1255 <        } catch (ExecutionException success) {
1256 <        } catch(Exception ex) {
1257 <            unexpectedException();
1258 <        } finally {
1259 <            joinPool(e);
1534 >            List<Future<String>> futures = e.invokeAll(l);
1535 >            assertEquals(2, futures.size());
1536 >            for (Future<String> future : futures)
1537 >                assertSame(TEST_STRING, future.get());
1538          }
1539      }
1540  
1263
1264
1541      /**
1542       * timed invokeAny(null) throws NPE
1543       */
1544 <    public void testTimedInvokeAny1() {
1545 <        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1546 <        try {
1547 <            e.invokeAny(null, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1548 <        } catch (NullPointerException success) {
1549 <        } catch(Exception ex) {
1550 <            unexpectedException();
1551 <        } finally {
1552 <            joinPool(e);
1544 >    public void testTimedInvokeAny1() throws Exception {
1545 >        final ExecutorService e =
1546 >            new ThreadPoolExecutor(2, 2,
1547 >                                   LONG_DELAY_MS, MILLISECONDS,
1548 >                                   new ArrayBlockingQueue<Runnable>(10));
1549 >        try (PoolCleaner cleaner = cleaner(e)) {
1550 >            try {
1551 >                e.invokeAny(null, randomTimeout(), randomTimeUnit());
1552 >                shouldThrow();
1553 >            } catch (NullPointerException success) {}
1554          }
1555      }
1556  
1557      /**
1558       * timed invokeAny(,,null) throws NPE
1559       */
1560 <    public void testTimedInvokeAnyNullTimeUnit() {
1561 <        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1562 <        try {
1563 <            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1560 >    public void testTimedInvokeAnyNullTimeUnit() throws Exception {
1561 >        final ExecutorService e =
1562 >            new ThreadPoolExecutor(2, 2,
1563 >                                   LONG_DELAY_MS, MILLISECONDS,
1564 >                                   new ArrayBlockingQueue<Runnable>(10));
1565 >        try (PoolCleaner cleaner = cleaner(e)) {
1566 >            List<Callable<String>> l = new ArrayList<>();
1567              l.add(new StringTask());
1568 <            e.invokeAny(l, MEDIUM_DELAY_MS, null);
1569 <        } catch (NullPointerException success) {
1570 <        } catch(Exception ex) {
1571 <            unexpectedException();
1292 <        } finally {
1293 <            joinPool(e);
1568 >            try {
1569 >                e.invokeAny(l, randomTimeout(), null);
1570 >                shouldThrow();
1571 >            } catch (NullPointerException success) {}
1572          }
1573      }
1574  
1575      /**
1576 <     * timed invokeAny(empty collection) throws IAE
1576 >     * timed invokeAny(empty collection) throws IllegalArgumentException
1577       */
1578 <    public void testTimedInvokeAny2() {
1579 <        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1580 <        try {
1581 <            e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1582 <        } catch (IllegalArgumentException success) {
1583 <        } catch(Exception ex) {
1584 <            unexpectedException();
1585 <        } finally {
1586 <            joinPool(e);
1578 >    public void testTimedInvokeAny2() throws Exception {
1579 >        final ExecutorService e =
1580 >            new ThreadPoolExecutor(2, 2,
1581 >                                   LONG_DELAY_MS, MILLISECONDS,
1582 >                                   new ArrayBlockingQueue<Runnable>(10));
1583 >        try (PoolCleaner cleaner = cleaner(e)) {
1584 >            try {
1585 >                e.invokeAny(new ArrayList<Callable<String>>(),
1586 >                            randomTimeout(), randomTimeUnit());
1587 >                shouldThrow();
1588 >            } catch (IllegalArgumentException success) {}
1589          }
1590      }
1591  
1592      /**
1593 <     * timed invokeAny(c) throws NPE if c has null elements
1593 >     * timed invokeAny(c) throws NullPointerException if c has null elements
1594       */
1595 <    public void testTimedInvokeAny3() {
1596 <        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1597 <        try {
1598 <            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1599 <            l.add(new StringTask());
1595 >    public void testTimedInvokeAny3() throws Exception {
1596 >        final CountDownLatch latch = new CountDownLatch(1);
1597 >        final ExecutorService e =
1598 >            new ThreadPoolExecutor(2, 2,
1599 >                                   LONG_DELAY_MS, MILLISECONDS,
1600 >                                   new ArrayBlockingQueue<Runnable>(10));
1601 >        try (PoolCleaner cleaner = cleaner(e)) {
1602 >            List<Callable<String>> l = new ArrayList<>();
1603 >            l.add(latchAwaitingStringTask(latch));
1604              l.add(null);
1605 <            e.invokeAny(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1606 <        } catch (NullPointerException success) {
1607 <        } catch(Exception ex) {
1608 <            ex.printStackTrace();
1609 <            unexpectedException();
1326 <        } finally {
1327 <            joinPool(e);
1605 >            try {
1606 >                e.invokeAny(l, randomTimeout(), randomTimeUnit());
1607 >                shouldThrow();
1608 >            } catch (NullPointerException success) {}
1609 >            latch.countDown();
1610          }
1611      }
1612  
1613      /**
1614       * timed invokeAny(c) throws ExecutionException if no task completes
1615       */
1616 <    public void testTimedInvokeAny4() {
1617 <        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1618 <        try {
1619 <            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1616 >    public void testTimedInvokeAny4() throws Exception {
1617 >        final ExecutorService e =
1618 >            new ThreadPoolExecutor(2, 2,
1619 >                                   LONG_DELAY_MS, MILLISECONDS,
1620 >                                   new ArrayBlockingQueue<Runnable>(10));
1621 >        try (PoolCleaner cleaner = cleaner(e)) {
1622 >            long startTime = System.nanoTime();
1623 >            List<Callable<String>> l = new ArrayList<>();
1624              l.add(new NPETask());
1625 <            e.invokeAny(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1626 <        } catch(ExecutionException success) {
1627 <        } catch(Exception ex) {
1628 <            unexpectedException();
1629 <        } finally {
1630 <            joinPool(e);
1625 >            try {
1626 >                e.invokeAny(l, LONG_DELAY_MS, MILLISECONDS);
1627 >                shouldThrow();
1628 >            } catch (ExecutionException success) {
1629 >                assertTrue(success.getCause() instanceof NullPointerException);
1630 >            }
1631 >            assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1632          }
1633      }
1634  
1635      /**
1636       * timed invokeAny(c) returns result of some task
1637       */
1638 <    public void testTimedInvokeAny5() {
1639 <        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1640 <        try {
1641 <            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1638 >    public void testTimedInvokeAny5() throws Exception {
1639 >        final ExecutorService e =
1640 >            new ThreadPoolExecutor(2, 2,
1641 >                                   LONG_DELAY_MS, MILLISECONDS,
1642 >                                   new ArrayBlockingQueue<Runnable>(10));
1643 >        try (PoolCleaner cleaner = cleaner(e)) {
1644 >            long startTime = System.nanoTime();
1645 >            List<Callable<String>> l = new ArrayList<>();
1646              l.add(new StringTask());
1647              l.add(new StringTask());
1648 <            String result = e.invokeAny(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1648 >            String result = e.invokeAny(l, LONG_DELAY_MS, MILLISECONDS);
1649              assertSame(TEST_STRING, result);
1650 <        } catch (ExecutionException success) {
1360 <        } catch(Exception ex) {
1361 <            unexpectedException();
1362 <        } finally {
1363 <            joinPool(e);
1650 >            assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1651          }
1652      }
1653  
1654      /**
1655       * timed invokeAll(null) throws NPE
1656       */
1657 <    public void testTimedInvokeAll1() {
1658 <        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1659 <        try {
1660 <            e.invokeAll(null, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1661 <        } catch (NullPointerException success) {
1662 <        } catch(Exception ex) {
1663 <            unexpectedException();
1664 <        } finally {
1665 <            joinPool(e);
1657 >    public void testTimedInvokeAll1() throws Exception {
1658 >        final ExecutorService e =
1659 >            new ThreadPoolExecutor(2, 2,
1660 >                                   LONG_DELAY_MS, MILLISECONDS,
1661 >                                   new ArrayBlockingQueue<Runnable>(10));
1662 >        try (PoolCleaner cleaner = cleaner(e)) {
1663 >            try {
1664 >                e.invokeAll(null, randomTimeout(), randomTimeUnit());
1665 >                shouldThrow();
1666 >            } catch (NullPointerException success) {}
1667          }
1668      }
1669  
1670      /**
1671       * timed invokeAll(,,null) throws NPE
1672       */
1673 <    public void testTimedInvokeAllNullTimeUnit() {
1674 <        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1675 <        try {
1676 <            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1673 >    public void testTimedInvokeAllNullTimeUnit() throws Exception {
1674 >        final ExecutorService e =
1675 >            new ThreadPoolExecutor(2, 2,
1676 >                                   LONG_DELAY_MS, MILLISECONDS,
1677 >                                   new ArrayBlockingQueue<Runnable>(10));
1678 >        try (PoolCleaner cleaner = cleaner(e)) {
1679 >            List<Callable<String>> l = new ArrayList<>();
1680              l.add(new StringTask());
1681 <            e.invokeAll(l, MEDIUM_DELAY_MS, null);
1682 <        } catch (NullPointerException success) {
1683 <        } catch(Exception ex) {
1684 <            unexpectedException();
1394 <        } finally {
1395 <            joinPool(e);
1681 >            try {
1682 >                e.invokeAll(l, randomTimeout(), null);
1683 >                shouldThrow();
1684 >            } catch (NullPointerException success) {}
1685          }
1686      }
1687  
1688      /**
1689 <     * timed invokeAll(empty collection) returns empty collection
1689 >     * timed invokeAll(empty collection) returns empty list
1690       */
1691 <    public void testTimedInvokeAll2() {
1692 <        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1693 <        try {
1694 <            List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1691 >    public void testTimedInvokeAll2() throws InterruptedException {
1692 >        final ExecutorService e =
1693 >            new ThreadPoolExecutor(2, 2,
1694 >                                   LONG_DELAY_MS, MILLISECONDS,
1695 >                                   new ArrayBlockingQueue<Runnable>(10));
1696 >        final Collection<Callable<String>> emptyCollection
1697 >            = Collections.emptyList();
1698 >        try (PoolCleaner cleaner = cleaner(e)) {
1699 >            List<Future<String>> r =
1700 >                e.invokeAll(emptyCollection, randomTimeout(), randomTimeUnit());
1701              assertTrue(r.isEmpty());
1407        } catch(Exception ex) {
1408            unexpectedException();
1409        } finally {
1410            joinPool(e);
1702          }
1703      }
1704  
1705      /**
1706       * timed invokeAll(c) throws NPE if c has null elements
1707       */
1708 <    public void testTimedInvokeAll3() {
1709 <        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1710 <        try {
1711 <            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1708 >    public void testTimedInvokeAll3() throws Exception {
1709 >        final ExecutorService e =
1710 >            new ThreadPoolExecutor(2, 2,
1711 >                                   LONG_DELAY_MS, MILLISECONDS,
1712 >                                   new ArrayBlockingQueue<Runnable>(10));
1713 >        try (PoolCleaner cleaner = cleaner(e)) {
1714 >            List<Callable<String>> l = new ArrayList<>();
1715              l.add(new StringTask());
1716              l.add(null);
1717 <            e.invokeAll(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1718 <        } catch (NullPointerException success) {
1719 <        } catch(Exception ex) {
1720 <            unexpectedException();
1427 <        } finally {
1428 <            joinPool(e);
1717 >            try {
1718 >                e.invokeAll(l, randomTimeout(), randomTimeUnit());
1719 >                shouldThrow();
1720 >            } catch (NullPointerException success) {}
1721          }
1722      }
1723  
1724      /**
1725       * get of element of invokeAll(c) throws exception on failed task
1726       */
1727 <    public void testTimedInvokeAll4() {
1728 <        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1729 <        try {
1730 <            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1727 >    public void testTimedInvokeAll4() throws Exception {
1728 >        final ExecutorService e =
1729 >            new ThreadPoolExecutor(2, 2,
1730 >                                   LONG_DELAY_MS, MILLISECONDS,
1731 >                                   new ArrayBlockingQueue<Runnable>(10));
1732 >        try (PoolCleaner cleaner = cleaner(e)) {
1733 >            List<Callable<String>> l = new ArrayList<>();
1734              l.add(new NPETask());
1735 <            List<Future<String>> result = e.invokeAll(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1736 <            assertEquals(1, result.size());
1737 <            for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
1738 <                it.next().get();
1739 <        } catch(ExecutionException success) {
1740 <        } catch(Exception ex) {
1741 <            unexpectedException();
1742 <        } finally {
1743 <            joinPool(e);
1735 >            List<Future<String>> futures =
1736 >                e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS);
1737 >            assertEquals(1, futures.size());
1738 >            try {
1739 >                futures.get(0).get();
1740 >                shouldThrow();
1741 >            } catch (ExecutionException success) {
1742 >                assertTrue(success.getCause() instanceof NullPointerException);
1743 >            }
1744          }
1745      }
1746  
1747      /**
1748       * timed invokeAll(c) returns results of all completed tasks
1749       */
1750 <    public void testTimedInvokeAll5() {
1751 <        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1752 <        try {
1753 <            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1750 >    public void testTimedInvokeAll5() throws Exception {
1751 >        final ExecutorService e =
1752 >            new ThreadPoolExecutor(2, 2,
1753 >                                   LONG_DELAY_MS, MILLISECONDS,
1754 >                                   new ArrayBlockingQueue<Runnable>(10));
1755 >        try (PoolCleaner cleaner = cleaner(e)) {
1756 >            List<Callable<String>> l = new ArrayList<>();
1757              l.add(new StringTask());
1758              l.add(new StringTask());
1759 <            List<Future<String>> result = e.invokeAll(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1760 <            assertEquals(2, result.size());
1761 <            for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
1762 <                assertSame(TEST_STRING, it.next().get());
1763 <        } catch (ExecutionException success) {
1466 <        } catch(Exception ex) {
1467 <            unexpectedException();
1468 <        } finally {
1469 <            joinPool(e);
1759 >            List<Future<String>> futures =
1760 >                e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS);
1761 >            assertEquals(2, futures.size());
1762 >            for (Future<String> future : futures)
1763 >                assertSame(TEST_STRING, future.get());
1764          }
1765      }
1766  
1767      /**
1768       * timed invokeAll(c) cancels tasks not completed by timeout
1769       */
1770 <    public void testTimedInvokeAll6() {
1771 <        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
1772 <        try {
1773 <            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1774 <            l.add(new StringTask());
1775 <            l.add(Executors.callable(new MediumPossiblyInterruptedRunnable(), TEST_STRING));
1776 <            l.add(new StringTask());
1777 <            List<Future<String>> result = e.invokeAll(l, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
1778 <            assertEquals(3, result.size());
1779 <            Iterator<Future<String>> it = result.iterator();
1780 <            Future<String> f1 = it.next();
1781 <            Future<String> f2 = it.next();
1782 <            Future<String> f3 = it.next();
1783 <            assertTrue(f1.isDone());
1784 <            assertTrue(f2.isDone());
1785 <            assertTrue(f3.isDone());
1786 <            assertFalse(f1.isCancelled());
1787 <            assertTrue(f2.isCancelled());
1788 <        } catch(Exception ex) {
1789 <            unexpectedException();
1790 <        } finally {
1791 <            joinPool(e);
1770 >    public void testTimedInvokeAll6() throws Exception {
1771 >        for (long timeout = timeoutMillis();;) {
1772 >            final CountDownLatch done = new CountDownLatch(1);
1773 >            final Callable<String> waiter = new CheckedCallable<String>() {
1774 >                public String realCall() {
1775 >                    try { done.await(LONG_DELAY_MS, MILLISECONDS); }
1776 >                    catch (InterruptedException ok) {}
1777 >                    return "1"; }};
1778 >            final ExecutorService p =
1779 >                new ThreadPoolExecutor(2, 2,
1780 >                                       LONG_DELAY_MS, MILLISECONDS,
1781 >                                       new ArrayBlockingQueue<Runnable>(10));
1782 >            try (PoolCleaner cleaner = cleaner(p, done)) {
1783 >                List<Callable<String>> tasks = new ArrayList<>();
1784 >                tasks.add(new StringTask("0"));
1785 >                tasks.add(waiter);
1786 >                tasks.add(new StringTask("2"));
1787 >                long startTime = System.nanoTime();
1788 >                List<Future<String>> futures =
1789 >                    p.invokeAll(tasks, timeout, MILLISECONDS);
1790 >                assertEquals(tasks.size(), futures.size());
1791 >                assertTrue(millisElapsedSince(startTime) >= timeout);
1792 >                for (Future future : futures)
1793 >                    assertTrue(future.isDone());
1794 >                assertTrue(futures.get(1).isCancelled());
1795 >                try {
1796 >                    assertEquals("0", futures.get(0).get());
1797 >                    assertEquals("2", futures.get(2).get());
1798 >                    break;
1799 >                } catch (CancellationException retryWithLongerTimeout) {
1800 >                    timeout *= 2;
1801 >                    if (timeout >= LONG_DELAY_MS / 2)
1802 >                        fail("expected exactly one task to be cancelled");
1803 >                }
1804 >            }
1805 >        }
1806 >    }
1807 >
1808 >    /**
1809 >     * Execution continues if there is at least one thread even if
1810 >     * thread factory fails to create more
1811 >     */
1812 >    public void testFailingThreadFactory() throws InterruptedException {
1813 >        final ExecutorService e =
1814 >            new ThreadPoolExecutor(100, 100,
1815 >                                   LONG_DELAY_MS, MILLISECONDS,
1816 >                                   new LinkedBlockingQueue<Runnable>(),
1817 >                                   new FailingThreadFactory());
1818 >        try (PoolCleaner cleaner = cleaner(e)) {
1819 >            final int TASKS = 100;
1820 >            final CountDownLatch done = new CountDownLatch(TASKS);
1821 >            for (int k = 0; k < TASKS; ++k)
1822 >                e.execute(new CheckedRunnable() {
1823 >                    public void realRun() {
1824 >                        done.countDown();
1825 >                    }});
1826 >            await(done);
1827 >        }
1828 >    }
1829 >
1830 >    /**
1831 >     * allowsCoreThreadTimeOut is by default false.
1832 >     */
1833 >    public void testAllowsCoreThreadTimeOut() {
1834 >        final ThreadPoolExecutor p =
1835 >            new ThreadPoolExecutor(2, 2,
1836 >                                   1000, MILLISECONDS,
1837 >                                   new ArrayBlockingQueue<Runnable>(10));
1838 >        try (PoolCleaner cleaner = cleaner(p)) {
1839 >            assertFalse(p.allowsCoreThreadTimeOut());
1840 >        }
1841 >    }
1842 >
1843 >    /**
1844 >     * allowCoreThreadTimeOut(true) causes idle threads to time out
1845 >     */
1846 >    public void testAllowCoreThreadTimeOut_true() throws Exception {
1847 >        long keepAliveTime = timeoutMillis();
1848 >        final ThreadPoolExecutor p =
1849 >            new ThreadPoolExecutor(2, 10,
1850 >                                   keepAliveTime, MILLISECONDS,
1851 >                                   new ArrayBlockingQueue<Runnable>(10));
1852 >        try (PoolCleaner cleaner = cleaner(p)) {
1853 >            final CountDownLatch threadStarted = new CountDownLatch(1);
1854 >            p.allowCoreThreadTimeOut(true);
1855 >            p.execute(new CheckedRunnable() {
1856 >                public void realRun() {
1857 >                    threadStarted.countDown();
1858 >                    assertEquals(1, p.getPoolSize());
1859 >                }});
1860 >            await(threadStarted);
1861 >            delay(keepAliveTime);
1862 >            long startTime = System.nanoTime();
1863 >            while (p.getPoolSize() > 0
1864 >                   && millisElapsedSince(startTime) < LONG_DELAY_MS)
1865 >                Thread.yield();
1866 >            assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1867 >            assertEquals(0, p.getPoolSize());
1868 >        }
1869 >    }
1870 >
1871 >    /**
1872 >     * allowCoreThreadTimeOut(false) causes idle threads not to time out
1873 >     */
1874 >    public void testAllowCoreThreadTimeOut_false() throws Exception {
1875 >        long keepAliveTime = timeoutMillis();
1876 >        final ThreadPoolExecutor p =
1877 >            new ThreadPoolExecutor(2, 10,
1878 >                                   keepAliveTime, MILLISECONDS,
1879 >                                   new ArrayBlockingQueue<Runnable>(10));
1880 >        try (PoolCleaner cleaner = cleaner(p)) {
1881 >            final CountDownLatch threadStarted = new CountDownLatch(1);
1882 >            p.allowCoreThreadTimeOut(false);
1883 >            p.execute(new CheckedRunnable() {
1884 >                public void realRun() throws InterruptedException {
1885 >                    threadStarted.countDown();
1886 >                    assertTrue(p.getPoolSize() >= 1);
1887 >                }});
1888 >            delay(2 * keepAliveTime);
1889 >            assertTrue(p.getPoolSize() >= 1);
1890 >        }
1891 >    }
1892 >
1893 >    /**
1894 >     * execute allows the same task to be submitted multiple times, even
1895 >     * if rejected
1896 >     */
1897 >    public void testRejectedRecycledTask() throws InterruptedException {
1898 >        final int nTasks = 1000;
1899 >        final CountDownLatch done = new CountDownLatch(nTasks);
1900 >        final Runnable recycledTask = new Runnable() {
1901 >            public void run() {
1902 >                done.countDown();
1903 >            }};
1904 >        final ThreadPoolExecutor p =
1905 >            new ThreadPoolExecutor(1, 30,
1906 >                                   60, SECONDS,
1907 >                                   new ArrayBlockingQueue(30));
1908 >        try (PoolCleaner cleaner = cleaner(p)) {
1909 >            for (int i = 0; i < nTasks; ++i) {
1910 >                for (;;) {
1911 >                    try {
1912 >                        p.execute(recycledTask);
1913 >                        break;
1914 >                    }
1915 >                    catch (RejectedExecutionException ignore) {}
1916 >                }
1917 >            }
1918 >            // enough time to run all tasks
1919 >            await(done, nTasks * SHORT_DELAY_MS);
1920          }
1921      }
1922  
1923 +    /**
1924 +     * get(cancelled task) throws CancellationException
1925 +     */
1926 +    public void testGet_cancelled() throws Exception {
1927 +        final CountDownLatch done = new CountDownLatch(1);
1928 +        final ExecutorService e =
1929 +            new ThreadPoolExecutor(1, 1,
1930 +                                   LONG_DELAY_MS, MILLISECONDS,
1931 +                                   new LinkedBlockingQueue<Runnable>());
1932 +        try (PoolCleaner cleaner = cleaner(e, done)) {
1933 +            final CountDownLatch blockerStarted = new CountDownLatch(1);
1934 +            final List<Future<?>> futures = new ArrayList<>();
1935 +            for (int i = 0; i < 2; i++) {
1936 +                Runnable r = new CheckedRunnable() { public void realRun()
1937 +                                                         throws Throwable {
1938 +                    blockerStarted.countDown();
1939 +                    assertTrue(done.await(2 * LONG_DELAY_MS, MILLISECONDS));
1940 +                }};
1941 +                futures.add(e.submit(r));
1942 +            }
1943 +            await(blockerStarted);
1944 +            for (Future<?> future : futures) future.cancel(false);
1945 +            for (Future<?> future : futures) {
1946 +                try {
1947 +                    future.get();
1948 +                    shouldThrow();
1949 +                } catch (CancellationException success) {}
1950 +                try {
1951 +                    future.get(LONG_DELAY_MS, MILLISECONDS);
1952 +                    shouldThrow();
1953 +                } catch (CancellationException success) {}
1954 +                assertTrue(future.isCancelled());
1955 +                assertTrue(future.isDone());
1956 +            }
1957 +        }
1958 +    }
1959 +
1960 +    /** Directly test simple ThreadPoolExecutor RejectedExecutionHandlers. */
1961 +    public void testStandardRejectedExecutionHandlers() {
1962 +        final ThreadPoolExecutor p =
1963 +            new ThreadPoolExecutor(1, 1, 1, SECONDS,
1964 +                                   new ArrayBlockingQueue<Runnable>(1));
1965 +        final AtomicReference<Thread> thread = new AtomicReference<>();
1966 +        final Runnable r = new Runnable() { public void run() {
1967 +            thread.set(Thread.currentThread()); }};
1968 +
1969 +        try {
1970 +            new AbortPolicy().rejectedExecution(r, p);
1971 +            shouldThrow();
1972 +        } catch (RejectedExecutionException success) {}
1973 +        assertNull(thread.get());
1974 +
1975 +        new DiscardPolicy().rejectedExecution(r, p);
1976 +        assertNull(thread.get());
1977 +
1978 +        new CallerRunsPolicy().rejectedExecution(r, p);
1979 +        assertSame(Thread.currentThread(), thread.get());
1980 +
1981 +        // check that pool was not perturbed by handlers
1982 +        assertTrue(p.getRejectedExecutionHandler() instanceof AbortPolicy);
1983 +        assertEquals(0, p.getTaskCount());
1984 +        assertTrue(p.getQueue().isEmpty());
1985 +    }
1986  
1987   }

Diff Legend

Removed lines
+ Added lines
< Changed lines
> Changed lines