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Comparing jsr166/src/test/tck/ScheduledExecutorTest.java (file contents):
Revision 1.17 by dl, Tue Jan 20 20:20:56 2004 UTC vs.
Revision 1.44 by jsr166, Sat May 28 15:33:20 2011 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 junit.framework.*;
10   import java.util.*;
11   import java.util.concurrent.*;
12 + import static java.util.concurrent.TimeUnit.MILLISECONDS;
13 + import java.util.concurrent.atomic.*;
14  
15   public class ScheduledExecutorTest extends JSR166TestCase {
16      public static void main(String[] args) {
17 <        junit.textui.TestRunner.run (suite());  
17 >        junit.textui.TestRunner.run(suite());
18      }
19      public static Test suite() {
20 <        return new TestSuite(ScheduledExecutorTest.class);
20 >        return new TestSuite(ScheduledExecutorTest.class);
21      }
22  
21
23      /**
24       * execute successfully executes a runnable
25       */
26 <    public void testExecute() {
27 <        try {
28 <            TrackedShortRunnable runnable =new TrackedShortRunnable();
29 <            ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
30 <            p1.execute(runnable);
31 <            assertFalse(runnable.done);
32 <            Thread.sleep(SHORT_DELAY_MS);
33 <            try { p1.shutdown(); } catch(SecurityException ok) { return; }
34 <            try {
35 <                Thread.sleep(MEDIUM_DELAY_MS);
36 <            } catch(InterruptedException e){
37 <                unexpectedException();
37 <            }
38 <            assertTrue(runnable.done);
39 <            try { p1.shutdown(); } catch(SecurityException ok) { return; }
40 <            joinPool(p1);
41 <        }
42 <        catch(Exception e){
43 <            unexpectedException();
26 >    public void testExecute() throws InterruptedException {
27 >        ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
28 >        final CountDownLatch done = new CountDownLatch(1);
29 >        final Runnable task = new CheckedRunnable() {
30 >            public void realRun() {
31 >                done.countDown();
32 >            }};
33 >        try {
34 >            p.execute(task);
35 >            assertTrue(done.await(SMALL_DELAY_MS, MILLISECONDS));
36 >        } finally {
37 >            joinPool(p);
38          }
45        
39      }
40  
48
41      /**
42       * delayed schedule of callable successfully executes after delay
43       */
44 <    public void testSchedule1() {
45 <        try {
46 <            TrackedCallable callable = new TrackedCallable();
47 <            ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
48 <            Future f = p1.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
49 <            assertFalse(callable.done);
50 <            Thread.sleep(MEDIUM_DELAY_MS);
51 <            assertTrue(callable.done);
52 <            assertEquals(Boolean.TRUE, f.get());
53 <            try { p1.shutdown(); } catch(SecurityException ok) { return; }
54 <            joinPool(p1);
55 <        } catch(RejectedExecutionException e){}
56 <        catch(Exception e){
57 <            e.printStackTrace();
58 <            unexpectedException();
44 >    public void testSchedule1() throws Exception {
45 >        ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
46 >        final long startTime = System.nanoTime();
47 >        final CountDownLatch done = new CountDownLatch(1);
48 >        try {
49 >            Callable task = new CheckedCallable<Boolean>() {
50 >                public Boolean realCall() {
51 >                    done.countDown();
52 >                    assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
53 >                    return Boolean.TRUE;
54 >                }};
55 >            Future f = p.schedule(task, timeoutMillis(), MILLISECONDS);
56 >            assertSame(Boolean.TRUE, f.get());
57 >            assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
58 >            assertTrue(done.await(0L, MILLISECONDS));
59 >        } finally {
60 >            joinPool(p);
61          }
62      }
63  
64      /**
65 <     *  delayed schedule of runnable successfully executes after delay
66 <     */
67 <    public void testSchedule3() {
68 <        try {
69 <            TrackedShortRunnable runnable = new TrackedShortRunnable();
70 <            ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
71 <            p1.schedule(runnable, SMALL_DELAY_MS, TimeUnit.MILLISECONDS);
72 <            Thread.sleep(SHORT_DELAY_MS);
73 <            assertFalse(runnable.done);
74 <            Thread.sleep(MEDIUM_DELAY_MS);
75 <            assertTrue(runnable.done);
76 <            try { p1.shutdown(); } catch(SecurityException ok) { return; }
77 <            joinPool(p1);
78 <        } catch(Exception e){
79 <            unexpectedException();
65 >     * delayed schedule of runnable successfully executes after delay
66 >     */
67 >    public void testSchedule3() throws Exception {
68 >        ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
69 >        final long startTime = System.nanoTime();
70 >        final CountDownLatch done = new CountDownLatch(1);
71 >        try {
72 >            Runnable task = new CheckedRunnable() {
73 >                public void realRun() {
74 >                    done.countDown();
75 >                    assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
76 >                }};
77 >            Future f = p.schedule(task, timeoutMillis(), MILLISECONDS);
78 >            await(done);
79 >            assertNull(f.get(LONG_DELAY_MS, MILLISECONDS));
80 >            assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
81 >        } finally {
82 >            joinPool(p);
83          }
84      }
85 <    
85 >
86      /**
87       * scheduleAtFixedRate executes runnable after given initial delay
88       */
89 <    public void testSchedule4() {
90 <        try {
91 <            TrackedShortRunnable runnable = new TrackedShortRunnable();
92 <            ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
93 <            ScheduledFuture h = p1.scheduleAtFixedRate(runnable, SHORT_DELAY_MS, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
94 <            assertFalse(runnable.done);
95 <            Thread.sleep(MEDIUM_DELAY_MS);
96 <            assertTrue(runnable.done);
97 <            h.cancel(true);
98 <            joinPool(p1);
99 <        } catch(Exception e){
100 <            unexpectedException();
89 >    public void testSchedule4() throws Exception {
90 >        ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
91 >        final long startTime = System.nanoTime();
92 >        final CountDownLatch done = new CountDownLatch(1);
93 >        try {
94 >            Runnable task = new CheckedRunnable() {
95 >                public void realRun() {
96 >                    done.countDown();
97 >                    assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
98 >                }};
99 >            ScheduledFuture f =
100 >                p.scheduleAtFixedRate(task, timeoutMillis(),
101 >                                      LONG_DELAY_MS, MILLISECONDS);
102 >            await(done);
103 >            assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
104 >            f.cancel(true);
105 >        } finally {
106 >            joinPool(p);
107          }
108      }
109  
110      /**
111       * scheduleWithFixedDelay executes runnable after given initial delay
112       */
113 <    public void testSchedule5() {
114 <        try {
115 <            TrackedShortRunnable runnable = new TrackedShortRunnable();
116 <            ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
117 <            ScheduledFuture h = p1.scheduleWithFixedDelay(runnable, SHORT_DELAY_MS, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
118 <            assertFalse(runnable.done);
119 <            Thread.sleep(MEDIUM_DELAY_MS);
120 <            assertTrue(runnable.done);
121 <            h.cancel(true);
122 <            joinPool(p1);
123 <        } catch(Exception e){
124 <            unexpectedException();
113 >    public void testSchedule5() throws Exception {
114 >        ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
115 >        final long startTime = System.nanoTime();
116 >        final CountDownLatch done = new CountDownLatch(1);
117 >        try {
118 >            Runnable task = new CheckedRunnable() {
119 >                public void realRun() {
120 >                    done.countDown();
121 >                    assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
122 >                }};
123 >            ScheduledFuture f =
124 >                p.scheduleWithFixedDelay(task, timeoutMillis(),
125 >                                         LONG_DELAY_MS, MILLISECONDS);
126 >            await(done);
127 >            assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
128 >            f.cancel(true);
129 >        } finally {
130 >            joinPool(p);
131          }
132      }
133 <    
133 >
134 >    static class RunnableCounter implements Runnable {
135 >        AtomicInteger count = new AtomicInteger(0);
136 >        public void run() { count.getAndIncrement(); }
137 >    }
138 >
139 >    /**
140 >     * scheduleAtFixedRate executes series of tasks at given rate
141 >     */
142 >    public void testFixedRateSequence() throws InterruptedException {
143 >        ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
144 >        RunnableCounter counter = new RunnableCounter();
145 >        ScheduledFuture h =
146 >            p.scheduleAtFixedRate(counter, 0, 1, MILLISECONDS);
147 >        delay(SMALL_DELAY_MS);
148 >        h.cancel(true);
149 >        int c = counter.count.get();
150 >        // By time scaling conventions, we must have at least
151 >        // an execution per SHORT delay, but no more than one SHORT more
152 >        assertTrue(c >= SMALL_DELAY_MS / SHORT_DELAY_MS);
153 >        assertTrue(c <= SMALL_DELAY_MS + SHORT_DELAY_MS);
154 >        joinPool(p);
155 >    }
156 >
157 >    /**
158 >     * scheduleWithFixedDelay executes series of tasks with given period
159 >     */
160 >    public void testFixedDelaySequence() throws InterruptedException {
161 >        ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
162 >        RunnableCounter counter = new RunnableCounter();
163 >        ScheduledFuture h =
164 >            p.scheduleWithFixedDelay(counter, 0, 1, MILLISECONDS);
165 >        delay(SMALL_DELAY_MS);
166 >        h.cancel(true);
167 >        int c = counter.count.get();
168 >        assertTrue(c >= SMALL_DELAY_MS / SHORT_DELAY_MS);
169 >        assertTrue(c <= SMALL_DELAY_MS + SHORT_DELAY_MS);
170 >        joinPool(p);
171 >    }
172 >
173      /**
174 <     *  execute (null) throws NPE
174 >     * execute(null) throws NPE
175       */
176 <    public void testExecuteNull() {
176 >    public void testExecuteNull() throws InterruptedException {
177          ScheduledThreadPoolExecutor se = null;
178          try {
179 <            se = new ScheduledThreadPoolExecutor(1);
180 <            se.execute(null);
179 >            se = new ScheduledThreadPoolExecutor(1);
180 >            se.execute(null);
181              shouldThrow();
182 <        } catch(NullPointerException success){}
183 <        catch(Exception e){
184 <            unexpectedException();
137 <        }
138 <        
139 <        joinPool(se);
182 >        } catch (NullPointerException success) {}
183 >
184 >        joinPool(se);
185      }
186  
187      /**
188 <     * schedule (null) throws NPE
188 >     * schedule(null) throws NPE
189       */
190 <    public void testScheduleNull() {
190 >    public void testScheduleNull() throws InterruptedException {
191          ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
192 <        try {
192 >        try {
193              TrackedCallable callable = null;
194 <            Future f = se.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
194 >            Future f = se.schedule(callable, SHORT_DELAY_MS, MILLISECONDS);
195              shouldThrow();
196 <        } catch(NullPointerException success){}
197 <        catch(Exception e){
153 <            unexpectedException();
154 <        }
155 <        joinPool(se);
196 >        } catch (NullPointerException success) {}
197 >        joinPool(se);
198      }
199 <  
199 >
200      /**
201       * execute throws RejectedExecutionException if shutdown
202       */
203 <    public void testSchedule1_RejectedExecutionException() {
203 >    public void testSchedule1_RejectedExecutionException() throws InterruptedException {
204          ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
205          try {
206              se.shutdown();
207              se.schedule(new NoOpRunnable(),
208 <                        MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
208 >                        MEDIUM_DELAY_MS, MILLISECONDS);
209              shouldThrow();
210 <        } catch(RejectedExecutionException success){
210 >        } catch (RejectedExecutionException success) {
211          } catch (SecurityException ok) {
212          }
171        
172        joinPool(se);
213  
214 +        joinPool(se);
215      }
216  
217      /**
218       * schedule throws RejectedExecutionException if shutdown
219       */
220 <    public void testSchedule2_RejectedExecutionException() {
220 >    public void testSchedule2_RejectedExecutionException() throws InterruptedException {
221          ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
222          try {
223              se.shutdown();
224              se.schedule(new NoOpCallable(),
225 <                        MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
225 >                        MEDIUM_DELAY_MS, MILLISECONDS);
226              shouldThrow();
227 <        } catch(RejectedExecutionException success){
227 >        } catch (RejectedExecutionException success) {
228          } catch (SecurityException ok) {
229          }
230          joinPool(se);
# Line 192 | Line 233 | public class ScheduledExecutorTest exten
233      /**
234       * schedule callable throws RejectedExecutionException if shutdown
235       */
236 <     public void testSchedule3_RejectedExecutionException() {
237 <         ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
238 <         try {
236 >    public void testSchedule3_RejectedExecutionException() throws InterruptedException {
237 >        ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
238 >        try {
239              se.shutdown();
240              se.schedule(new NoOpCallable(),
241 <                        MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
241 >                        MEDIUM_DELAY_MS, MILLISECONDS);
242              shouldThrow();
243 <        } catch(RejectedExecutionException success){
243 >        } catch (RejectedExecutionException success) {
244          } catch (SecurityException ok) {
245          }
246 <         joinPool(se);
246 >        joinPool(se);
247      }
248  
249      /**
250 <     *  scheduleAtFixedRate throws RejectedExecutionException if shutdown
250 >     * scheduleAtFixedRate throws RejectedExecutionException if shutdown
251       */
252 <    public void testScheduleAtFixedRate1_RejectedExecutionException() {
252 >    public void testScheduleAtFixedRate1_RejectedExecutionException() throws InterruptedException {
253          ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
254          try {
255              se.shutdown();
256              se.scheduleAtFixedRate(new NoOpRunnable(),
257 <                                   MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
257 >                                   MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS);
258              shouldThrow();
259 <        } catch(RejectedExecutionException success){
259 >        } catch (RejectedExecutionException success) {
260          } catch (SecurityException ok) {
261 <        }
261 >        }
262          joinPool(se);
263      }
264 <    
264 >
265      /**
266       * scheduleWithFixedDelay throws RejectedExecutionException if shutdown
267       */
268 <    public void testScheduleWithFixedDelay1_RejectedExecutionException() {
268 >    public void testScheduleWithFixedDelay1_RejectedExecutionException() throws InterruptedException {
269          ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
270          try {
271              se.shutdown();
272              se.scheduleWithFixedDelay(new NoOpRunnable(),
273 <                                      MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
273 >                                      MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS);
274              shouldThrow();
275 <        } catch(RejectedExecutionException success){
275 >        } catch (RejectedExecutionException success) {
276          } catch (SecurityException ok) {
277 <        }
277 >        }
278          joinPool(se);
279      }
280  
281      /**
282 <     *  getActiveCount increases but doesn't overestimate, when a
283 <     *  thread becomes active
282 >     * getActiveCount increases but doesn't overestimate, when a
283 >     * thread becomes active
284       */
285 <    public void testGetActiveCount() {
286 <        ScheduledThreadPoolExecutor p2 = new ScheduledThreadPoolExecutor(2);
287 <        assertEquals(0, p2.getActiveCount());
288 <        p2.execute(new SmallRunnable());
289 <        try {
290 <            Thread.sleep(SHORT_DELAY_MS);
291 <        } catch(Exception e){
292 <            unexpectedException();
285 >    public void testGetActiveCount() throws InterruptedException {
286 >        final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(2);
287 >        final CountDownLatch threadStarted = new CountDownLatch(1);
288 >        final CountDownLatch done = new CountDownLatch(1);
289 >        try {
290 >            assertEquals(0, p.getActiveCount());
291 >            p.execute(new CheckedRunnable() {
292 >                public void realRun() throws InterruptedException {
293 >                    threadStarted.countDown();
294 >                    assertEquals(1, p.getActiveCount());
295 >                    done.await();
296 >                }});
297 >            assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
298 >            assertEquals(1, p.getActiveCount());
299 >        } finally {
300 >            done.countDown();
301 >            joinPool(p);
302          }
253        assertEquals(1, p2.getActiveCount());
254        joinPool(p2);
303      }
304 <    
304 >
305      /**
306 <     *    getCompletedTaskCount increases, but doesn't overestimate,
307 <     *   when tasks complete
306 >     * getCompletedTaskCount increases, but doesn't overestimate,
307 >     * when tasks complete
308       */
309 <    public void testGetCompletedTaskCount() {
310 <        ScheduledThreadPoolExecutor p2 = new ScheduledThreadPoolExecutor(2);
311 <        assertEquals(0, p2.getCompletedTaskCount());
312 <        p2.execute(new SmallRunnable());
313 <        try {
314 <            Thread.sleep(MEDIUM_DELAY_MS);
315 <        } catch(Exception e){
316 <            unexpectedException();
309 >    public void testGetCompletedTaskCount() throws InterruptedException {
310 >        final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(2);
311 >        final CountDownLatch threadStarted = new CountDownLatch(1);
312 >        final CountDownLatch threadProceed = new CountDownLatch(1);
313 >        final CountDownLatch threadDone = new CountDownLatch(1);
314 >        try {
315 >            assertEquals(0, p.getCompletedTaskCount());
316 >            p.execute(new CheckedRunnable() {
317 >                public void realRun() throws InterruptedException {
318 >                    threadStarted.countDown();
319 >                    assertEquals(0, p.getCompletedTaskCount());
320 >                    threadProceed.await();
321 >                    threadDone.countDown();
322 >                }});
323 >            assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
324 >            assertEquals(0, p.getCompletedTaskCount());
325 >            threadProceed.countDown();
326 >            threadDone.await();
327 >            long startTime = System.nanoTime();
328 >            while (p.getCompletedTaskCount() != 1) {
329 >                if (millisElapsedSince(startTime) > LONG_DELAY_MS)
330 >                    fail("timed out");
331 >                Thread.yield();
332 >            }
333 >        } finally {
334 >            joinPool(p);
335          }
270        assertEquals(1, p2.getCompletedTaskCount());
271        joinPool(p2);
336      }
337 <    
337 >
338      /**
339 <     *  getCorePoolSize returns size given in constructor if not otherwise set
339 >     * getCorePoolSize returns size given in constructor if not otherwise set
340       */
341 <    public void testGetCorePoolSize() {
342 <        ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
343 <        assertEquals(1, p1.getCorePoolSize());
344 <        joinPool(p1);
341 >    public void testGetCorePoolSize() throws InterruptedException {
342 >        ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
343 >        assertEquals(1, p.getCorePoolSize());
344 >        joinPool(p);
345      }
346 <    
346 >
347      /**
348 <     *    getLargestPoolSize increases, but doesn't overestimate, when
349 <     *   multiple threads active
348 >     * getLargestPoolSize increases, but doesn't overestimate, when
349 >     * multiple threads active
350       */
351 <    public void testGetLargestPoolSize() {
352 <        ScheduledThreadPoolExecutor p2 = new ScheduledThreadPoolExecutor(2);
353 <        assertEquals(0, p2.getLargestPoolSize());
354 <        p2.execute(new SmallRunnable());
355 <        p2.execute(new SmallRunnable());
356 <        try {
357 <            Thread.sleep(SHORT_DELAY_MS);
358 <        } catch(Exception e){
359 <            unexpectedException();
351 >    public void testGetLargestPoolSize() throws InterruptedException {
352 >        final int THREADS = 3;
353 >        final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(THREADS);
354 >        final CountDownLatch threadsStarted = new CountDownLatch(THREADS);
355 >        final CountDownLatch done = new CountDownLatch(1);
356 >        try {
357 >            assertEquals(0, p.getLargestPoolSize());
358 >            for (int i = 0; i < THREADS; i++)
359 >                p.execute(new CheckedRunnable() {
360 >                    public void realRun() throws InterruptedException {
361 >                        threadsStarted.countDown();
362 >                        done.await();
363 >                        assertEquals(THREADS, p.getLargestPoolSize());
364 >                    }});
365 >            assertTrue(threadsStarted.await(SMALL_DELAY_MS, MILLISECONDS));
366 >            assertEquals(THREADS, p.getLargestPoolSize());
367 >        } finally {
368 >            done.countDown();
369 >            joinPool(p);
370 >            assertEquals(THREADS, p.getLargestPoolSize());
371          }
297        assertEquals(2, p2.getLargestPoolSize());
298        joinPool(p2);
372      }
373 <    
373 >
374      /**
375 <     *   getPoolSize increases, but doesn't overestimate, when threads
376 <     *   become active
375 >     * getPoolSize increases, but doesn't overestimate, when threads
376 >     * become active
377       */
378 <    public void testGetPoolSize() {
379 <        ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
380 <        assertEquals(0, p1.getPoolSize());
381 <        p1.execute(new SmallRunnable());
382 <        assertEquals(1, p1.getPoolSize());
383 <        joinPool(p1);
378 >    public void testGetPoolSize() throws InterruptedException {
379 >        final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
380 >        final CountDownLatch threadStarted = new CountDownLatch(1);
381 >        final CountDownLatch done = new CountDownLatch(1);
382 >        try {
383 >            assertEquals(0, p.getPoolSize());
384 >            p.execute(new CheckedRunnable() {
385 >                public void realRun() throws InterruptedException {
386 >                    threadStarted.countDown();
387 >                    assertEquals(1, p.getPoolSize());
388 >                    done.await();
389 >                }});
390 >            assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
391 >            assertEquals(1, p.getPoolSize());
392 >        } finally {
393 >            done.countDown();
394 >            joinPool(p);
395 >        }
396      }
397 <    
397 >
398      /**
399 <     *    getTaskCount increases, but doesn't overestimate, when tasks
400 <     *    submitted
399 >     * getTaskCount increases, but doesn't overestimate, when tasks
400 >     * submitted
401       */
402 <    public void testGetTaskCount() {
403 <        ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
404 <        assertEquals(0, p1.getTaskCount());
405 <        for(int i = 0; i < 5; i++)
406 <            p1.execute(new SmallRunnable());
407 <        try {
408 <            Thread.sleep(SHORT_DELAY_MS);
409 <        } catch(Exception e){
410 <            unexpectedException();
402 >    public void testGetTaskCount() throws InterruptedException {
403 >        final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
404 >        final CountDownLatch threadStarted = new CountDownLatch(1);
405 >        final CountDownLatch done = new CountDownLatch(1);
406 >        final int TASKS = 5;
407 >        try {
408 >            assertEquals(0, p.getTaskCount());
409 >            for (int i = 0; i < TASKS; i++)
410 >                p.execute(new CheckedRunnable() {
411 >                    public void realRun() throws InterruptedException {
412 >                        threadStarted.countDown();
413 >                        done.await();
414 >                    }});
415 >            assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
416 >            assertEquals(TASKS, p.getTaskCount());
417 >        } finally {
418 >            done.countDown();
419 >            joinPool(p);
420          }
327        assertEquals(5, p1.getTaskCount());
328        joinPool(p1);
421      }
422  
423 <    /**
423 >    /**
424       * getThreadFactory returns factory in constructor if not set
425       */
426 <    public void testGetThreadFactory() {
426 >    public void testGetThreadFactory() throws InterruptedException {
427          ThreadFactory tf = new SimpleThreadFactory();
428 <        ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1, tf);
428 >        ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1, tf);
429          assertSame(tf, p.getThreadFactory());
430          joinPool(p);
431      }
432  
433 <    /**
433 >    /**
434       * setThreadFactory sets the thread factory returned by getThreadFactory
435       */
436 <    public void testSetThreadFactory() {
436 >    public void testSetThreadFactory() throws InterruptedException {
437          ThreadFactory tf = new SimpleThreadFactory();
438 <        ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
438 >        ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
439          p.setThreadFactory(tf);
440          assertSame(tf, p.getThreadFactory());
441          joinPool(p);
442      }
443  
444 <    /**
444 >    /**
445       * setThreadFactory(null) throws NPE
446       */
447 <    public void testSetThreadFactoryNull() {
448 <        ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
447 >    public void testSetThreadFactoryNull() throws InterruptedException {
448 >        ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
449          try {
450              p.setThreadFactory(null);
451              shouldThrow();
# Line 362 | Line 454 | public class ScheduledExecutorTest exten
454              joinPool(p);
455          }
456      }
457 <    
457 >
458      /**
459 <     *   is isShutDown is false before shutdown, true after
459 >     * isShutdown is false before shutdown, true after
460       */
461      public void testIsShutdown() {
462 <        
463 <        ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
462 >
463 >        ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
464          try {
465 <            assertFalse(p1.isShutdown());
465 >            assertFalse(p.isShutdown());
466          }
467          finally {
468 <            try { p1.shutdown(); } catch(SecurityException ok) { return; }
468 >            try { p.shutdown(); } catch (SecurityException ok) { return; }
469          }
470 <        assertTrue(p1.isShutdown());
470 >        assertTrue(p.isShutdown());
471      }
472  
381        
473      /**
474 <     *   isTerminated is false before termination, true after
474 >     * isTerminated is false before termination, true after
475       */
476 <    public void testIsTerminated() {
477 <        ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
476 >    public void testIsTerminated() throws InterruptedException {
477 >        final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
478 >        final CountDownLatch threadStarted = new CountDownLatch(1);
479 >        final CountDownLatch done = new CountDownLatch(1);
480 >        assertFalse(p.isTerminated());
481          try {
482 <            p1.execute(new SmallRunnable());
482 >            p.execute(new CheckedRunnable() {
483 >                public void realRun() throws InterruptedException {
484 >                    assertFalse(p.isTerminated());
485 >                    threadStarted.countDown();
486 >                    done.await();
487 >                }});
488 >            assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
489 >            assertFalse(p.isTerminating());
490 >            done.countDown();
491          } finally {
492 <            try { p1.shutdown(); } catch(SecurityException ok) { return; }
492 >            try { p.shutdown(); } catch (SecurityException ok) { return; }
493          }
494 <        try {
495 <            assertTrue(p1.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
394 <            assertTrue(p1.isTerminated());
395 <        } catch(Exception e){
396 <            unexpectedException();
397 <        }      
494 >        assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
495 >        assertTrue(p.isTerminated());
496      }
497  
498      /**
499 <     *  isTerminating is not true when running or when terminated
499 >     * isTerminating is not true when running or when terminated
500       */
501 <    public void testIsTerminating() {
502 <        ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
503 <        assertFalse(p1.isTerminating());
501 >    public void testIsTerminating() throws InterruptedException {
502 >        final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
503 >        final CountDownLatch threadStarted = new CountDownLatch(1);
504 >        final CountDownLatch done = new CountDownLatch(1);
505          try {
506 <            p1.execute(new SmallRunnable());
507 <            assertFalse(p1.isTerminating());
506 >            assertFalse(p.isTerminating());
507 >            p.execute(new CheckedRunnable() {
508 >                public void realRun() throws InterruptedException {
509 >                    assertFalse(p.isTerminating());
510 >                    threadStarted.countDown();
511 >                    done.await();
512 >                }});
513 >            assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
514 >            assertFalse(p.isTerminating());
515 >            done.countDown();
516          } finally {
517 <            try { p1.shutdown(); } catch(SecurityException ok) { return; }
517 >            try { p.shutdown(); } catch (SecurityException ok) { return; }
518          }
519 <        try {
520 <            assertTrue(p1.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
521 <            assertTrue(p1.isTerminated());
415 <            assertFalse(p1.isTerminating());
416 <        } catch(Exception e){
417 <            unexpectedException();
418 <        }      
519 >        assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
520 >        assertTrue(p.isTerminated());
521 >        assertFalse(p.isTerminating());
522      }
523  
524      /**
525       * getQueue returns the work queue, which contains queued tasks
526       */
527 <    public void testGetQueue() {
528 <        ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
529 <        ScheduledFuture[] tasks = new ScheduledFuture[5];
530 <        for(int i = 0; i < 5; i++){
428 <            tasks[i] = p1.schedule(new SmallPossiblyInterruptedRunnable(), 1, TimeUnit.MILLISECONDS);
429 <        }
527 >    public void testGetQueue() throws InterruptedException {
528 >        ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
529 >        final CountDownLatch threadStarted = new CountDownLatch(1);
530 >        final CountDownLatch done = new CountDownLatch(1);
531          try {
532 <            Thread.sleep(SHORT_DELAY_MS);
533 <            BlockingQueue<Runnable> q = p1.getQueue();
534 <            assertTrue(q.contains(tasks[4]));
532 >            ScheduledFuture[] tasks = new ScheduledFuture[5];
533 >            for (int i = 0; i < tasks.length; i++) {
534 >                Runnable r = new CheckedRunnable() {
535 >                    public void realRun() throws InterruptedException {
536 >                        threadStarted.countDown();
537 >                        done.await();
538 >                    }};
539 >                tasks[i] = p.schedule(r, 1, MILLISECONDS);
540 >            }
541 >            assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
542 >            BlockingQueue<Runnable> q = p.getQueue();
543 >            assertTrue(q.contains(tasks[tasks.length - 1]));
544              assertFalse(q.contains(tasks[0]));
435        } catch(Exception e) {
436            unexpectedException();
545          } finally {
546 <            joinPool(p1);
546 >            done.countDown();
547 >            joinPool(p);
548          }
549      }
550  
551      /**
552       * remove(task) removes queued task, and fails to remove active task
553       */
554 <    public void testRemove() {
555 <        ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
554 >    public void testRemove() throws InterruptedException {
555 >        final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
556          ScheduledFuture[] tasks = new ScheduledFuture[5];
557 <        for(int i = 0; i < 5; i++){
558 <            tasks[i] = p1.schedule(new SmallPossiblyInterruptedRunnable(), 1, TimeUnit.MILLISECONDS);
450 <        }
557 >        final CountDownLatch threadStarted = new CountDownLatch(1);
558 >        final CountDownLatch done = new CountDownLatch(1);
559          try {
560 <            Thread.sleep(SHORT_DELAY_MS);
561 <            BlockingQueue<Runnable> q = p1.getQueue();
562 <            assertFalse(p1.remove((Runnable)tasks[0]));
560 >            for (int i = 0; i < tasks.length; i++) {
561 >                Runnable r = new CheckedRunnable() {
562 >                    public void realRun() throws InterruptedException {
563 >                        threadStarted.countDown();
564 >                        done.await();
565 >                    }};
566 >                tasks[i] = p.schedule(r, 1, MILLISECONDS);
567 >            }
568 >            assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
569 >            BlockingQueue<Runnable> q = p.getQueue();
570 >            assertFalse(p.remove((Runnable)tasks[0]));
571              assertTrue(q.contains((Runnable)tasks[4]));
572              assertTrue(q.contains((Runnable)tasks[3]));
573 <            assertTrue(p1.remove((Runnable)tasks[4]));
574 <            assertFalse(p1.remove((Runnable)tasks[4]));
573 >            assertTrue(p.remove((Runnable)tasks[4]));
574 >            assertFalse(p.remove((Runnable)tasks[4]));
575              assertFalse(q.contains((Runnable)tasks[4]));
576              assertTrue(q.contains((Runnable)tasks[3]));
577 <            assertTrue(p1.remove((Runnable)tasks[3]));
577 >            assertTrue(p.remove((Runnable)tasks[3]));
578              assertFalse(q.contains((Runnable)tasks[3]));
463        } catch(Exception e) {
464            unexpectedException();
579          } finally {
580 <            joinPool(p1);
580 >            done.countDown();
581 >            joinPool(p);
582          }
583      }
584  
585      /**
586 <     *  purge removes cancelled tasks from the queue
586 >     * purge eventually removes cancelled tasks from the queue
587       */
588 <    public void testPurge() {
589 <        ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
588 >    public void testPurge() throws InterruptedException {
589 >        ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
590          ScheduledFuture[] tasks = new ScheduledFuture[5];
591 <        for(int i = 0; i < 5; i++){
592 <            tasks[i] = p1.schedule(new SmallPossiblyInterruptedRunnable(), 1, TimeUnit.MILLISECONDS);
591 >        for (int i = 0; i < tasks.length; i++)
592 >            tasks[i] = p.schedule(new SmallPossiblyInterruptedRunnable(),
593 >                                  LONG_DELAY_MS, MILLISECONDS);
594 >        try {
595 >            int max = tasks.length;
596 >            if (tasks[4].cancel(true)) --max;
597 >            if (tasks[3].cancel(true)) --max;
598 >            // There must eventually be an interference-free point at
599 >            // which purge will not fail. (At worst, when queue is empty.)
600 >            long startTime = System.nanoTime();
601 >            do {
602 >                p.purge();
603 >                long count = p.getTaskCount();
604 >                if (count == max)
605 >                    return;
606 >            } while (millisElapsedSince(startTime) < MEDIUM_DELAY_MS);
607 >            fail("Purge failed to remove cancelled tasks");
608 >        } finally {
609 >            for (ScheduledFuture task : tasks)
610 >                task.cancel(true);
611 >            joinPool(p);
612          }
479        int max = 5;
480        if (tasks[4].cancel(true)) --max;
481        if (tasks[3].cancel(true)) --max;
482        p1.purge();
483        long count = p1.getTaskCount();
484        assertTrue(count > 0 && count <= max);
485        joinPool(p1);
613      }
614  
615      /**
616 <     *  shutDownNow returns a list containing tasks that were not run
617 <     */
618 <    public void testShutDownNow() {
619 <        ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
620 <        for(int i = 0; i < 5; i++)
621 <            p1.schedule(new SmallPossiblyInterruptedRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
622 <        List l;
623 <        try {
624 <            l = p1.shutdownNow();
625 <        } catch (SecurityException ok) {
626 <            return;
627 <        }
628 <        assertTrue(p1.isShutdown());
629 <        assertTrue(l.size() > 0 && l.size() <= 5);
630 <        joinPool(p1);
616 >     * shutdownNow returns a list containing tasks that were not run
617 >     */
618 >    public void testShutdownNow() {
619 >        ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
620 >        for (int i = 0; i < 5; i++)
621 >            p.schedule(new SmallPossiblyInterruptedRunnable(),
622 >                       LONG_DELAY_MS, MILLISECONDS);
623 >        try {
624 >            List<Runnable> l = p.shutdownNow();
625 >            assertTrue(p.isShutdown());
626 >            assertEquals(5, l.size());
627 >        } catch (SecurityException ok) {
628 >            // Allowed in case test doesn't have privs
629 >        } finally {
630 >            joinPool(p);
631 >        }
632      }
633  
634      /**
635       * In default setting, shutdown cancels periodic but not delayed
636       * tasks at shutdown
637       */
638 <    public void testShutDown1() {
639 <        try {
640 <            ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
641 <            assertTrue(p1.getExecuteExistingDelayedTasksAfterShutdownPolicy());
514 <            assertFalse(p1.getContinueExistingPeriodicTasksAfterShutdownPolicy());
638 >    public void testShutdown1() throws InterruptedException {
639 >        ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
640 >        assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
641 >        assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
642  
643 <            ScheduledFuture[] tasks = new ScheduledFuture[5];
644 <            for(int i = 0; i < 5; i++)
645 <                tasks[i] = p1.schedule(new NoOpRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
646 <            try { p1.shutdown(); } catch(SecurityException ok) { return; }
647 <            BlockingQueue q = p1.getQueue();
648 <            for (Iterator it = q.iterator(); it.hasNext();) {
649 <                ScheduledFuture t = (ScheduledFuture)it.next();
650 <                assertFalse(t.isCancelled());
651 <            }
652 <            assertTrue(p1.isShutdown());
526 <            Thread.sleep(SMALL_DELAY_MS);
527 <            for (int i = 0; i < 5; ++i) {
528 <                assertTrue(tasks[i].isDone());
529 <                assertFalse(tasks[i].isCancelled());
530 <            }
531 <            
643 >        ScheduledFuture[] tasks = new ScheduledFuture[5];
644 >        for (int i = 0; i < tasks.length; i++)
645 >            tasks[i] = p.schedule(new NoOpRunnable(),
646 >                                  SHORT_DELAY_MS, MILLISECONDS);
647 >        try { p.shutdown(); } catch (SecurityException ok) { return; }
648 >        BlockingQueue<Runnable> q = p.getQueue();
649 >        for (ScheduledFuture task : tasks) {
650 >            assertFalse(task.isDone());
651 >            assertFalse(task.isCancelled());
652 >            assertTrue(q.contains(task));
653          }
654 <        catch(Exception ex) {
655 <            unexpectedException();
654 >        assertTrue(p.isShutdown());
655 >        assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS));
656 >        assertTrue(p.isTerminated());
657 >        for (ScheduledFuture task : tasks) {
658 >            assertTrue(task.isDone());
659 >            assertFalse(task.isCancelled());
660          }
661      }
662  
538
663      /**
664       * If setExecuteExistingDelayedTasksAfterShutdownPolicy is false,
665       * delayed tasks are cancelled at shutdown
666       */
667 <    public void testShutDown2() {
668 <        try {
669 <            ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
670 <            p1.setExecuteExistingDelayedTasksAfterShutdownPolicy(false);
671 <            ScheduledFuture[] tasks = new ScheduledFuture[5];
672 <            for(int i = 0; i < 5; i++)
673 <                tasks[i] = p1.schedule(new NoOpRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
674 <            try { p1.shutdown(); } catch(SecurityException ok) { return; }
675 <            assertTrue(p1.isShutdown());
676 <            BlockingQueue q = p1.getQueue();
677 <            assertTrue(q.isEmpty());
678 <            Thread.sleep(SMALL_DELAY_MS);
679 <            assertTrue(p1.isTerminated());
680 <        }
681 <        catch(Exception ex) {
682 <            unexpectedException();
667 >    public void testShutdown2() throws InterruptedException {
668 >        ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
669 >        p.setExecuteExistingDelayedTasksAfterShutdownPolicy(false);
670 >        assertFalse(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
671 >        assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
672 >        ScheduledFuture[] tasks = new ScheduledFuture[5];
673 >        for (int i = 0; i < tasks.length; i++)
674 >            tasks[i] = p.schedule(new NoOpRunnable(),
675 >                                  SHORT_DELAY_MS, MILLISECONDS);
676 >        BlockingQueue q = p.getQueue();
677 >        assertEquals(tasks.length, q.size());
678 >        try { p.shutdown(); } catch (SecurityException ok) { return; }
679 >        assertTrue(p.isShutdown());
680 >        assertTrue(q.isEmpty());
681 >        assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS));
682 >        assertTrue(p.isTerminated());
683 >        for (ScheduledFuture task : tasks) {
684 >            assertTrue(task.isDone());
685 >            assertTrue(task.isCancelled());
686          }
687      }
688  
562
689      /**
690       * If setContinueExistingPeriodicTasksAfterShutdownPolicy is set false,
691 <     * periodic tasks are not cancelled at shutdown
691 >     * periodic tasks are cancelled at shutdown
692       */
693 <    public void testShutDown3() {
694 <        try {
695 <            ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
696 <            p1.setContinueExistingPeriodicTasksAfterShutdownPolicy(false);
697 <            ScheduledFuture task =
698 <                p1.scheduleAtFixedRate(new NoOpRunnable(), 5, 5, TimeUnit.MILLISECONDS);
699 <            try { p1.shutdown(); } catch(SecurityException ok) { return; }
700 <            assertTrue(p1.isShutdown());
701 <            BlockingQueue q = p1.getQueue();
702 <            assertTrue(q.isEmpty());
703 <            Thread.sleep(SHORT_DELAY_MS);
704 <            assertTrue(p1.isTerminated());
705 <        }
706 <        catch(Exception ex) {
707 <            unexpectedException();
708 <        }
693 >    public void testShutdown3() throws InterruptedException {
694 >        ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
695 >        assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
696 >        assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
697 >        p.setContinueExistingPeriodicTasksAfterShutdownPolicy(false);
698 >        assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
699 >        assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
700 >        long initialDelay = LONG_DELAY_MS;
701 >        ScheduledFuture task =
702 >            p.scheduleAtFixedRate(new NoOpRunnable(), initialDelay,
703 >                                  5, MILLISECONDS);
704 >        try { p.shutdown(); } catch (SecurityException ok) { return; }
705 >        assertTrue(p.isShutdown());
706 >        assertTrue(p.getQueue().isEmpty());
707 >        assertTrue(task.isDone());
708 >        assertTrue(task.isCancelled());
709 >        joinPool(p);
710      }
711  
712      /**
713       * if setContinueExistingPeriodicTasksAfterShutdownPolicy is true,
714 <     * periodic tasks are cancelled at shutdown
714 >     * periodic tasks are not cancelled at shutdown
715       */
716 <    public void testShutDown4() {
717 <        ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
718 <        try {
719 <            p1.setContinueExistingPeriodicTasksAfterShutdownPolicy(true);
716 >    public void testShutdown4() throws InterruptedException {
717 >        ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
718 >        final CountDownLatch counter = new CountDownLatch(2);
719 >        try {
720 >            p.setContinueExistingPeriodicTasksAfterShutdownPolicy(true);
721 >            assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
722 >            assertTrue(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
723 >            final Runnable r = new CheckedRunnable() {
724 >                public void realRun() {
725 >                    counter.countDown();
726 >                }};
727              ScheduledFuture task =
728 <                p1.scheduleAtFixedRate(new NoOpRunnable(), 1, 1, TimeUnit.MILLISECONDS);
728 >                p.scheduleAtFixedRate(r, 1, 1, MILLISECONDS);
729 >            assertFalse(task.isDone());
730              assertFalse(task.isCancelled());
731 <            try { p1.shutdown(); } catch(SecurityException ok) { return; }
731 >            try { p.shutdown(); } catch (SecurityException ok) { return; }
732              assertFalse(task.isCancelled());
733 <            assertFalse(p1.isTerminated());
734 <            assertTrue(p1.isShutdown());
735 <            Thread.sleep(SHORT_DELAY_MS);
733 >            assertFalse(p.isTerminated());
734 >            assertTrue(p.isShutdown());
735 >            assertTrue(counter.await(SMALL_DELAY_MS, MILLISECONDS));
736              assertFalse(task.isCancelled());
737 <            assertTrue(task.cancel(true));
737 >            assertTrue(task.cancel(false));
738              assertTrue(task.isDone());
739 <            Thread.sleep(SHORT_DELAY_MS);
740 <            assertTrue(p1.isTerminated());
739 >            assertTrue(task.isCancelled());
740 >            assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS));
741 >            assertTrue(p.isTerminated());
742          }
743 <        catch(Exception ex) {
744 <            unexpectedException();
609 <        }
610 <        finally {
611 <            joinPool(p1);
743 >        finally {
744 >            joinPool(p);
745          }
746      }
747  
748      /**
749       * completed submit of callable returns result
750       */
751 <    public void testSubmitCallable() {
751 >    public void testSubmitCallable() throws Exception {
752          ExecutorService e = new ScheduledThreadPoolExecutor(2);
753          try {
754              Future<String> future = e.submit(new StringTask());
755              String result = future.get();
756              assertSame(TEST_STRING, result);
624        }
625        catch (ExecutionException ex) {
626            unexpectedException();
627        }
628        catch (InterruptedException ex) {
629            unexpectedException();
757          } finally {
758              joinPool(e);
759          }
# Line 635 | Line 762 | public class ScheduledExecutorTest exten
762      /**
763       * completed submit of runnable returns successfully
764       */
765 <    public void testSubmitRunnable() {
765 >    public void testSubmitRunnable() throws Exception {
766          ExecutorService e = new ScheduledThreadPoolExecutor(2);
767          try {
768              Future<?> future = e.submit(new NoOpRunnable());
769              future.get();
770              assertTrue(future.isDone());
644        }
645        catch (ExecutionException ex) {
646            unexpectedException();
647        }
648        catch (InterruptedException ex) {
649            unexpectedException();
771          } finally {
772              joinPool(e);
773          }
# Line 655 | Line 776 | public class ScheduledExecutorTest exten
776      /**
777       * completed submit of (runnable, result) returns result
778       */
779 <    public void testSubmitRunnable2() {
779 >    public void testSubmitRunnable2() throws Exception {
780          ExecutorService e = new ScheduledThreadPoolExecutor(2);
781          try {
782              Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING);
783              String result = future.get();
784              assertSame(TEST_STRING, result);
664        }
665        catch (ExecutionException ex) {
666            unexpectedException();
667        }
668        catch (InterruptedException ex) {
669            unexpectedException();
785          } finally {
786              joinPool(e);
787          }
788      }
789  
675
676
677
678
790      /**
791       * invokeAny(null) throws NPE
792       */
793 <    public void testInvokeAny1() {
793 >    public void testInvokeAny1() throws Exception {
794          ExecutorService e = new ScheduledThreadPoolExecutor(2);
795          try {
796              e.invokeAny(null);
797 +            shouldThrow();
798          } catch (NullPointerException success) {
687        } catch(Exception ex) {
688            unexpectedException();
799          } finally {
800              joinPool(e);
801          }
# Line 694 | Line 804 | public class ScheduledExecutorTest exten
804      /**
805       * invokeAny(empty collection) throws IAE
806       */
807 <    public void testInvokeAny2() {
807 >    public void testInvokeAny2() throws Exception {
808          ExecutorService e = new ScheduledThreadPoolExecutor(2);
809          try {
810              e.invokeAny(new ArrayList<Callable<String>>());
811 +            shouldThrow();
812          } catch (IllegalArgumentException success) {
702        } catch(Exception ex) {
703            unexpectedException();
813          } finally {
814              joinPool(e);
815          }
# Line 709 | Line 818 | public class ScheduledExecutorTest exten
818      /**
819       * invokeAny(c) throws NPE if c has null elements
820       */
821 <    public void testInvokeAny3() {
821 >    public void testInvokeAny3() throws Exception {
822 >        CountDownLatch latch = new CountDownLatch(1);
823          ExecutorService e = new ScheduledThreadPoolExecutor(2);
824 +        List<Callable<String>> l = new ArrayList<Callable<String>>();
825 +        l.add(latchAwaitingStringTask(latch));
826 +        l.add(null);
827          try {
715            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
716            l.add(new StringTask());
717            l.add(null);
828              e.invokeAny(l);
829 +            shouldThrow();
830          } catch (NullPointerException success) {
720        } catch(Exception ex) {
721            unexpectedException();
831          } finally {
832 +            latch.countDown();
833              joinPool(e);
834          }
835      }
# Line 727 | Line 837 | public class ScheduledExecutorTest exten
837      /**
838       * invokeAny(c) throws ExecutionException if no task completes
839       */
840 <    public void testInvokeAny4() {
840 >    public void testInvokeAny4() throws Exception {
841          ExecutorService e = new ScheduledThreadPoolExecutor(2);
842 +        List<Callable<String>> l = new ArrayList<Callable<String>>();
843 +        l.add(new NPETask());
844          try {
733            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
734            l.add(new NPETask());
845              e.invokeAny(l);
846 +            shouldThrow();
847          } catch (ExecutionException success) {
848 <        } catch(Exception ex) {
738 <            unexpectedException();
848 >            assertTrue(success.getCause() instanceof NullPointerException);
849          } finally {
850              joinPool(e);
851          }
# Line 744 | Line 854 | public class ScheduledExecutorTest exten
854      /**
855       * invokeAny(c) returns result of some task
856       */
857 <    public void testInvokeAny5() {
857 >    public void testInvokeAny5() throws Exception {
858          ExecutorService e = new ScheduledThreadPoolExecutor(2);
859          try {
860 <            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
860 >            List<Callable<String>> l = new ArrayList<Callable<String>>();
861              l.add(new StringTask());
862              l.add(new StringTask());
863              String result = e.invokeAny(l);
864              assertSame(TEST_STRING, result);
755        } catch (ExecutionException success) {
756        } catch(Exception ex) {
757            unexpectedException();
865          } finally {
866              joinPool(e);
867          }
# Line 763 | Line 870 | public class ScheduledExecutorTest exten
870      /**
871       * invokeAll(null) throws NPE
872       */
873 <    public void testInvokeAll1() {
873 >    public void testInvokeAll1() throws Exception {
874          ExecutorService e = new ScheduledThreadPoolExecutor(2);
875          try {
876              e.invokeAll(null);
877 +            shouldThrow();
878          } catch (NullPointerException success) {
771        } catch(Exception ex) {
772            unexpectedException();
879          } finally {
880              joinPool(e);
881          }
# Line 778 | Line 884 | public class ScheduledExecutorTest exten
884      /**
885       * invokeAll(empty collection) returns empty collection
886       */
887 <    public void testInvokeAll2() {
887 >    public void testInvokeAll2() throws Exception {
888          ExecutorService e = new ScheduledThreadPoolExecutor(2);
889          try {
890              List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>());
891              assertTrue(r.isEmpty());
786        } catch(Exception ex) {
787            unexpectedException();
892          } finally {
893              joinPool(e);
894          }
# Line 793 | Line 897 | public class ScheduledExecutorTest exten
897      /**
898       * invokeAll(c) throws NPE if c has null elements
899       */
900 <    public void testInvokeAll3() {
900 >    public void testInvokeAll3() throws Exception {
901          ExecutorService e = new ScheduledThreadPoolExecutor(2);
902 +        List<Callable<String>> l = new ArrayList<Callable<String>>();
903 +        l.add(new StringTask());
904 +        l.add(null);
905          try {
799            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
800            l.add(new StringTask());
801            l.add(null);
906              e.invokeAll(l);
907 +            shouldThrow();
908          } catch (NullPointerException success) {
804        } catch(Exception ex) {
805            unexpectedException();
909          } finally {
910              joinPool(e);
911          }
# Line 811 | Line 914 | public class ScheduledExecutorTest exten
914      /**
915       * get of invokeAll(c) throws exception on failed task
916       */
917 <    public void testInvokeAll4() {
917 >    public void testInvokeAll4() throws Exception {
918          ExecutorService e = new ScheduledThreadPoolExecutor(2);
919 +        List<Callable<String>> l = new ArrayList<Callable<String>>();
920 +        l.add(new NPETask());
921 +        List<Future<String>> futures = e.invokeAll(l);
922 +        assertEquals(1, futures.size());
923          try {
924 <            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
925 <            l.add(new NPETask());
926 <            List<Future<String>> result = e.invokeAll(l);
927 <            assertEquals(1, result.size());
821 <            for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
822 <                it.next().get();
823 <        } catch(ExecutionException success) {
824 <        } catch(Exception ex) {
825 <            unexpectedException();
924 >            futures.get(0).get();
925 >            shouldThrow();
926 >        } catch (ExecutionException success) {
927 >            assertTrue(success.getCause() instanceof NullPointerException);
928          } finally {
929              joinPool(e);
930          }
# Line 831 | Line 933 | public class ScheduledExecutorTest exten
933      /**
934       * invokeAll(c) returns results of all completed tasks
935       */
936 <    public void testInvokeAll5() {
936 >    public void testInvokeAll5() throws Exception {
937          ExecutorService e = new ScheduledThreadPoolExecutor(2);
938          try {
939 <            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
939 >            List<Callable<String>> l = new ArrayList<Callable<String>>();
940              l.add(new StringTask());
941              l.add(new StringTask());
942 <            List<Future<String>> result = e.invokeAll(l);
943 <            assertEquals(2, result.size());
944 <            for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
945 <                assertSame(TEST_STRING, it.next().get());
844 <        } catch (ExecutionException success) {
845 <        } catch(Exception ex) {
846 <            unexpectedException();
942 >            List<Future<String>> futures = e.invokeAll(l);
943 >            assertEquals(2, futures.size());
944 >            for (Future<String> future : futures)
945 >                assertSame(TEST_STRING, future.get());
946          } finally {
947              joinPool(e);
948          }
# Line 852 | Line 951 | public class ScheduledExecutorTest exten
951      /**
952       * timed invokeAny(null) throws NPE
953       */
954 <    public void testTimedInvokeAny1() {
954 >    public void testTimedInvokeAny1() throws Exception {
955          ExecutorService e = new ScheduledThreadPoolExecutor(2);
956          try {
957 <            e.invokeAny(null, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
957 >            e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS);
958 >            shouldThrow();
959          } catch (NullPointerException success) {
860        } catch(Exception ex) {
861            unexpectedException();
960          } finally {
961              joinPool(e);
962          }
# Line 867 | Line 965 | public class ScheduledExecutorTest exten
965      /**
966       * timed invokeAny(,,null) throws NPE
967       */
968 <    public void testTimedInvokeAnyNullTimeUnit() {
968 >    public void testTimedInvokeAnyNullTimeUnit() throws Exception {
969          ExecutorService e = new ScheduledThreadPoolExecutor(2);
970 +        List<Callable<String>> l = new ArrayList<Callable<String>>();
971 +        l.add(new StringTask());
972          try {
873            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
874            l.add(new StringTask());
973              e.invokeAny(l, MEDIUM_DELAY_MS, null);
974 +            shouldThrow();
975          } catch (NullPointerException success) {
877        } catch(Exception ex) {
878            unexpectedException();
976          } finally {
977              joinPool(e);
978          }
# Line 884 | Line 981 | public class ScheduledExecutorTest exten
981      /**
982       * timed invokeAny(empty collection) throws IAE
983       */
984 <    public void testTimedInvokeAny2() {
984 >    public void testTimedInvokeAny2() throws Exception {
985          ExecutorService e = new ScheduledThreadPoolExecutor(2);
986          try {
987 <            e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
987 >            e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
988 >            shouldThrow();
989          } catch (IllegalArgumentException success) {
892        } catch(Exception ex) {
893            unexpectedException();
990          } finally {
991              joinPool(e);
992          }
# Line 899 | Line 995 | public class ScheduledExecutorTest exten
995      /**
996       * timed invokeAny(c) throws NPE if c has null elements
997       */
998 <    public void testTimedInvokeAny3() {
998 >    public void testTimedInvokeAny3() throws Exception {
999 >        CountDownLatch latch = new CountDownLatch(1);
1000          ExecutorService e = new ScheduledThreadPoolExecutor(2);
1001 +        List<Callable<String>> l = new ArrayList<Callable<String>>();
1002 +        l.add(latchAwaitingStringTask(latch));
1003 +        l.add(null);
1004          try {
1005 <            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1006 <            l.add(new StringTask());
907 <            l.add(null);
908 <            e.invokeAny(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1005 >            e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1006 >            shouldThrow();
1007          } catch (NullPointerException success) {
910        } catch(Exception ex) {
911            ex.printStackTrace();
912            unexpectedException();
1008          } finally {
1009 +            latch.countDown();
1010              joinPool(e);
1011          }
1012      }
# Line 918 | Line 1014 | public class ScheduledExecutorTest exten
1014      /**
1015       * timed invokeAny(c) throws ExecutionException if no task completes
1016       */
1017 <    public void testTimedInvokeAny4() {
1017 >    public void testTimedInvokeAny4() throws Exception {
1018          ExecutorService e = new ScheduledThreadPoolExecutor(2);
1019 +        List<Callable<String>> l = new ArrayList<Callable<String>>();
1020 +        l.add(new NPETask());
1021          try {
1022 <            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1023 <            l.add(new NPETask());
1024 <            e.invokeAny(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1025 <        } catch(ExecutionException success) {
928 <        } catch(Exception ex) {
929 <            unexpectedException();
1022 >            e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1023 >            shouldThrow();
1024 >        } catch (ExecutionException success) {
1025 >            assertTrue(success.getCause() instanceof NullPointerException);
1026          } finally {
1027              joinPool(e);
1028          }
# Line 935 | Line 1031 | public class ScheduledExecutorTest exten
1031      /**
1032       * timed invokeAny(c) returns result of some task
1033       */
1034 <    public void testTimedInvokeAny5() {
1034 >    public void testTimedInvokeAny5() throws Exception {
1035          ExecutorService e = new ScheduledThreadPoolExecutor(2);
1036          try {
1037 <            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1037 >            List<Callable<String>> l = new ArrayList<Callable<String>>();
1038              l.add(new StringTask());
1039              l.add(new StringTask());
1040 <            String result = e.invokeAny(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1040 >            String result = e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1041              assertSame(TEST_STRING, result);
946        } catch (ExecutionException success) {
947        } catch(Exception ex) {
948            unexpectedException();
1042          } finally {
1043              joinPool(e);
1044          }
# Line 954 | Line 1047 | public class ScheduledExecutorTest exten
1047      /**
1048       * timed invokeAll(null) throws NPE
1049       */
1050 <    public void testTimedInvokeAll1() {
1050 >    public void testTimedInvokeAll1() throws Exception {
1051          ExecutorService e = new ScheduledThreadPoolExecutor(2);
1052          try {
1053 <            e.invokeAll(null, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1053 >            e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS);
1054 >            shouldThrow();
1055          } catch (NullPointerException success) {
962        } catch(Exception ex) {
963            unexpectedException();
1056          } finally {
1057              joinPool(e);
1058          }
# Line 969 | Line 1061 | public class ScheduledExecutorTest exten
1061      /**
1062       * timed invokeAll(,,null) throws NPE
1063       */
1064 <    public void testTimedInvokeAllNullTimeUnit() {
1064 >    public void testTimedInvokeAllNullTimeUnit() throws Exception {
1065          ExecutorService e = new ScheduledThreadPoolExecutor(2);
1066 +        List<Callable<String>> l = new ArrayList<Callable<String>>();
1067 +        l.add(new StringTask());
1068          try {
975            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
976            l.add(new StringTask());
1069              e.invokeAll(l, MEDIUM_DELAY_MS, null);
1070 +            shouldThrow();
1071          } catch (NullPointerException success) {
979        } catch(Exception ex) {
980            unexpectedException();
1072          } finally {
1073              joinPool(e);
1074          }
# Line 986 | Line 1077 | public class ScheduledExecutorTest exten
1077      /**
1078       * timed invokeAll(empty collection) returns empty collection
1079       */
1080 <    public void testTimedInvokeAll2() {
1080 >    public void testTimedInvokeAll2() throws Exception {
1081          ExecutorService e = new ScheduledThreadPoolExecutor(2);
1082          try {
1083 <            List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1083 >            List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
1084              assertTrue(r.isEmpty());
994        } catch(Exception ex) {
995            unexpectedException();
1085          } finally {
1086              joinPool(e);
1087          }
# Line 1001 | Line 1090 | public class ScheduledExecutorTest exten
1090      /**
1091       * timed invokeAll(c) throws NPE if c has null elements
1092       */
1093 <    public void testTimedInvokeAll3() {
1093 >    public void testTimedInvokeAll3() throws Exception {
1094          ExecutorService e = new ScheduledThreadPoolExecutor(2);
1095 +        List<Callable<String>> l = new ArrayList<Callable<String>>();
1096 +        l.add(new StringTask());
1097 +        l.add(null);
1098          try {
1099 <            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1100 <            l.add(new StringTask());
1009 <            l.add(null);
1010 <            e.invokeAll(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1099 >            e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1100 >            shouldThrow();
1101          } catch (NullPointerException success) {
1012        } catch(Exception ex) {
1013            unexpectedException();
1102          } finally {
1103              joinPool(e);
1104          }
# Line 1019 | Line 1107 | public class ScheduledExecutorTest exten
1107      /**
1108       * get of element of invokeAll(c) throws exception on failed task
1109       */
1110 <    public void testTimedInvokeAll4() {
1110 >    public void testTimedInvokeAll4() throws Exception {
1111          ExecutorService e = new ScheduledThreadPoolExecutor(2);
1112 +        List<Callable<String>> l = new ArrayList<Callable<String>>();
1113 +        l.add(new NPETask());
1114 +        List<Future<String>> futures =
1115 +            e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1116 +        assertEquals(1, futures.size());
1117          try {
1118 <            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1119 <            l.add(new NPETask());
1120 <            List<Future<String>> result = e.invokeAll(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1121 <            assertEquals(1, result.size());
1029 <            for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
1030 <                it.next().get();
1031 <        } catch(ExecutionException success) {
1032 <        } catch(Exception ex) {
1033 <            unexpectedException();
1118 >            futures.get(0).get();
1119 >            shouldThrow();
1120 >        } catch (ExecutionException success) {
1121 >            assertTrue(success.getCause() instanceof NullPointerException);
1122          } finally {
1123              joinPool(e);
1124          }
# Line 1039 | Line 1127 | public class ScheduledExecutorTest exten
1127      /**
1128       * timed invokeAll(c) returns results of all completed tasks
1129       */
1130 <    public void testTimedInvokeAll5() {
1130 >    public void testTimedInvokeAll5() throws Exception {
1131          ExecutorService e = new ScheduledThreadPoolExecutor(2);
1132          try {
1133 <            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1133 >            List<Callable<String>> l = new ArrayList<Callable<String>>();
1134              l.add(new StringTask());
1135              l.add(new StringTask());
1136 <            List<Future<String>> result = e.invokeAll(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1137 <            assertEquals(2, result.size());
1138 <            for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
1139 <                assertSame(TEST_STRING, it.next().get());
1140 <        } catch (ExecutionException success) {
1053 <        } catch(Exception ex) {
1054 <            unexpectedException();
1136 >            List<Future<String>> futures =
1137 >                e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1138 >            assertEquals(2, futures.size());
1139 >            for (Future<String> future : futures)
1140 >                assertSame(TEST_STRING, future.get());
1141          } finally {
1142              joinPool(e);
1143          }
# Line 1060 | Line 1146 | public class ScheduledExecutorTest exten
1146      /**
1147       * timed invokeAll(c) cancels tasks not completed by timeout
1148       */
1149 <    public void testTimedInvokeAll6() {
1149 >    public void testTimedInvokeAll6() throws Exception {
1150          ExecutorService e = new ScheduledThreadPoolExecutor(2);
1151          try {
1152 <            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1152 >            List<Callable<String>> l = new ArrayList<Callable<String>>();
1153              l.add(new StringTask());
1154              l.add(Executors.callable(new MediumPossiblyInterruptedRunnable(), TEST_STRING));
1155              l.add(new StringTask());
1156 <            List<Future<String>> result = e.invokeAll(l, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
1157 <            assertEquals(3, result.size());
1158 <            Iterator<Future<String>> it = result.iterator();
1156 >            List<Future<String>> futures =
1157 >                e.invokeAll(l, SHORT_DELAY_MS, MILLISECONDS);
1158 >            assertEquals(3, futures.size());
1159 >            Iterator<Future<String>> it = futures.iterator();
1160              Future<String> f1 = it.next();
1161              Future<String> f2 = it.next();
1162              Future<String> f3 = it.next();
# Line 1078 | Line 1165 | public class ScheduledExecutorTest exten
1165              assertTrue(f3.isDone());
1166              assertFalse(f1.isCancelled());
1167              assertTrue(f2.isCancelled());
1081        } catch(Exception ex) {
1082            unexpectedException();
1168          } finally {
1169              joinPool(e);
1170          }
1171      }
1172  
1088
1173   }

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