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Comparing jsr166/src/test/tck/ScheduledExecutorTest.java (file contents):
Revision 1.1 by dl, Sun Aug 31 19:24:55 2003 UTC vs.
Revision 1.18 by dl, Wed Jan 21 01:47:07 2004 UTC

# Line 1 | Line 1
1   /*
2 < * Written by members of JCP JSR-166 Expert Group and released to the
3 < * public domain. Use, modify, and redistribute this code in any way
4 < * without acknowledgement. Other contributors include Andrew Wright,
5 < * Jeffrey Hayes, Pat Fischer, Mike Judd.
2 > * Written by Doug Lea with assistance from members of JCP JSR-166
3 > * Expert Group and released to the public domain, as explained at
4 > * http://creativecommons.org/licenses/publicdomain
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 java.util.concurrent.atomic.*;
13  
14 < public class ScheduledExecutorTest extends TestCase{
13 <    
14 <    boolean flag = false;
15 <
14 > public class ScheduledExecutorTest extends JSR166TestCase {
15      public static void main(String[] args) {
16          junit.textui.TestRunner.run (suite());  
17      }
19    
20
18      public static Test suite() {
19          return new TestSuite(ScheduledExecutorTest.class);
20      }
21  
25    private static long SHORT_DELAY_MS = 100;
26    private static long MEDIUM_DELAY_MS = 1000;
27    private static long LONG_DELAY_MS = 10000;
28
29    static class MyRunnable implements Runnable {
30        volatile boolean waiting = true;
31        volatile boolean done = false;
32        public void run(){
33            try{
34                Thread.sleep(MEDIUM_DELAY_MS);
35                waiting = false;
36                done = true;
37            } catch(Exception e){}
38        }
39    }
40
41    static class MyCallable implements Callable {
42        volatile boolean waiting = true;
43        volatile boolean done = false;
44        public Object call(){
45            try{
46                Thread.sleep(MEDIUM_DELAY_MS);
47                waiting = false;
48                done = true;
49            }catch(Exception e){}
50            return Boolean.TRUE;
51        }
52    }
22  
23      /**
24 <     *  Test to verify execute successfully runs the given Runnable
25 <     */
26 <    public void testExecute(){
27 <        try{
28 <            MyRunnable runnable =new MyRunnable();
29 <            ScheduledExecutor one = new ScheduledExecutor(1);
30 <            one.execute(runnable);
31 <            Thread.sleep(100);
32 <            assertTrue(runnable.waiting);
33 <            one.shutdown();
34 <            // make sure the Runnable has time to complete
35 <            try{Thread.sleep(1010);}catch(InterruptedException e){}
36 <            assertFalse(runnable.waiting);
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();
38 >            }
39              assertTrue(runnable.done);
40 <            one.shutdown();
40 >            try { p1.shutdown(); } catch(SecurityException ok) { return; }
41 >            joinPool(p1);
42          }
43          catch(Exception e){
44 <            fail("unexpected exception");
44 >            unexpectedException();
45          }
46 +        
47      }
48  
49 +
50      /**
51 <     *  Test to verify schedule successfully runs the given Callable.
78 <     *  The waiting flag shows that the Callable is not started until
79 <     *  immediately.
51 >     * delayed schedule of callable successfully executes after delay
52       */
53 <    public void testSchedule1(){
54 <        try{
55 <            MyCallable callable = new MyCallable();
56 <            ScheduledExecutor one = new ScheduledExecutor(1);
57 <            Future f = one.schedule(callable, 500, TimeUnit.MILLISECONDS);
58 <            //      Thread.sleep(505);
59 <            assertTrue(callable.waiting);
88 <            Thread.sleep(2000);
53 >    public void testSchedule1() {
54 >        try {
55 >            TrackedCallable callable = new TrackedCallable();
56 >            ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
57 >            Future f = p1.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
58 >            assertFalse(callable.done);
59 >            Thread.sleep(MEDIUM_DELAY_MS);
60              assertTrue(callable.done);
61              assertEquals(Boolean.TRUE, f.get());
62 <            one.shutdown();
63 <        }catch(RejectedExecutionException e){}
64 <        catch(Exception e){}
62 >            try { p1.shutdown(); } catch(SecurityException ok) { return; }
63 >            joinPool(p1);
64 >        } catch(RejectedExecutionException e){}
65 >        catch(Exception e){
66 >            e.printStackTrace();
67 >            unexpectedException();
68 >        }
69      }
70  
71      /**
72 <     *  Another version of schedule, only using Runnable instead of Callable
73 <     */
74 <    public void testSchedule3(){
75 <        try{
76 <            MyRunnable runnable = new MyRunnable();
77 <            ScheduledExecutor one = new ScheduledExecutor(1);
78 <            one.schedule(runnable, 500, TimeUnit.MILLISECONDS);
79 <            Thread.sleep(50);
80 <            assertTrue(runnable.waiting);
81 <            Thread.sleep(2000);
72 >     *  delayed schedule of runnable successfully executes after delay
73 >     */
74 >    public void testSchedule3() {
75 >        try {
76 >            TrackedShortRunnable runnable = new TrackedShortRunnable();
77 >            ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
78 >            p1.schedule(runnable, SMALL_DELAY_MS, TimeUnit.MILLISECONDS);
79 >            Thread.sleep(SHORT_DELAY_MS);
80 >            assertFalse(runnable.done);
81 >            Thread.sleep(MEDIUM_DELAY_MS);
82              assertTrue(runnable.done);
83 <            one.shutdown();
83 >            try { p1.shutdown(); } catch(SecurityException ok) { return; }
84 >            joinPool(p1);
85          } catch(Exception e){
86 <            fail("unexpected exception");
86 >            unexpectedException();
87          }
88      }
89      
90      /**
91 <     *  The final version of schedule, using both long, TimeUnit and Runnable
91 >     * scheduleAtFixedRate executes runnable after given initial delay
92       */
93 <    public void testSchedule4(){
94 <        try{
95 <            MyRunnable runnable = new MyRunnable();
96 <            ScheduledExecutor one = new ScheduledExecutor(1);
97 <            one.schedule(runnable, 500, TimeUnit.MILLISECONDS);
98 <            //      Thread.sleep(505);
99 <            assertTrue(runnable.waiting);
124 <            Thread.sleep(2000);
93 >    public void testSchedule4() {
94 >        try {
95 >            TrackedShortRunnable runnable = new TrackedShortRunnable();
96 >            ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
97 >            ScheduledFuture h = p1.scheduleAtFixedRate(runnable, SHORT_DELAY_MS, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
98 >            assertFalse(runnable.done);
99 >            Thread.sleep(MEDIUM_DELAY_MS);
100              assertTrue(runnable.done);
101 <            one.shutdown();
101 >            h.cancel(true);
102 >            joinPool(p1);
103          } catch(Exception e){
104 <            fail("unexpected exception");
104 >            unexpectedException();
105 >        }
106 >    }
107 >
108 >    static class RunnableCounter implements Runnable {
109 >        AtomicInteger count = new AtomicInteger(0);
110 >        public void run() { count.getAndIncrement(); }
111 >    }
112 >
113 >    /**
114 >     * scheduleWithFixedDelay executes runnable after given initial delay
115 >     */
116 >    public void testSchedule5() {
117 >        try {
118 >            TrackedShortRunnable runnable = new TrackedShortRunnable();
119 >            ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
120 >            ScheduledFuture h = p1.scheduleWithFixedDelay(runnable, SHORT_DELAY_MS, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
121 >            assertFalse(runnable.done);
122 >            Thread.sleep(MEDIUM_DELAY_MS);
123 >            assertTrue(runnable.done);
124 >            h.cancel(true);
125 >            joinPool(p1);
126 >        } catch(Exception e){
127 >            unexpectedException();
128          }
129      }
130      
131 <  
132 <    // exception tests
131 >    /**
132 >     * scheduleAtFixedRate executes series of tasks at given rate
133 >     */
134 >    public void testFixedRateSequence() {
135 >        try {
136 >            ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
137 >            RunnableCounter counter = new RunnableCounter();
138 >            ScheduledFuture h =
139 >                p1.scheduleAtFixedRate(counter, 0, 1, TimeUnit.MILLISECONDS);
140 >            Thread.sleep(SMALL_DELAY_MS);
141 >            h.cancel(true);
142 >            int c = counter.count.get();
143 >            // By time scaling conventions, we must have at least
144 >            // an execution per SHORT delay, but no more than one SHORT more
145 >            assertTrue(c >= SMALL_DELAY_MS / SHORT_DELAY_MS);
146 >            assertTrue(c <= SMALL_DELAY_MS + SHORT_DELAY_MS);
147 >            assertTrue(h.isDone());
148 >            joinPool(p1);
149 >        } catch(Exception e){
150 >            unexpectedException();
151 >        }
152 >    }
153 >
154 >    /**
155 >     * scheduleWithFixedDelay executes series of tasks with given period
156 >     */
157 >    public void testFixedDelaySequence() {
158 >        try {
159 >            ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
160 >            RunnableCounter counter = new RunnableCounter();
161 >            ScheduledFuture h =
162 >                p1.scheduleWithFixedDelay(counter, 0, 1, TimeUnit.MILLISECONDS);
163 >            Thread.sleep(SMALL_DELAY_MS);
164 >            h.cancel(true);
165 >            int c = counter.count.get();
166 >            assertTrue(c >= SMALL_DELAY_MS / SHORT_DELAY_MS);
167 >            assertTrue(c <= SMALL_DELAY_MS + SHORT_DELAY_MS);
168 >            assertTrue(h.isDone());
169 >            joinPool(p1);
170 >        } catch(Exception e){
171 >            unexpectedException();
172 >        }
173 >    }
174 >
175 >
176 >    /**
177 >     *  execute (null) throws NPE
178 >     */
179 >    public void testExecuteNull() {
180 >        ScheduledThreadPoolExecutor se = null;
181 >        try {
182 >            se = new ScheduledThreadPoolExecutor(1);
183 >            se.execute(null);
184 >            shouldThrow();
185 >        } catch(NullPointerException success){}
186 >        catch(Exception e){
187 >            unexpectedException();
188 >        }
189 >        
190 >        joinPool(se);
191 >    }
192  
193      /**
194 <     *  Test to verify schedule(Runnable, long) throws RejectedExecutionException
137 <     *  This occurs on an attempt to schedule a task on a shutdown executor
194 >     * schedule (null) throws NPE
195       */
196 <    public void testSchedule1_RejectedExecutionException(){
197 <        try{
198 <            ScheduledExecutor se = new ScheduledExecutor(1);
196 >    public void testScheduleNull() {
197 >        ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
198 >        try {
199 >            TrackedCallable callable = null;
200 >            Future f = se.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
201 >            shouldThrow();
202 >        } catch(NullPointerException success){}
203 >        catch(Exception e){
204 >            unexpectedException();
205 >        }
206 >        joinPool(se);
207 >    }
208 >  
209 >    /**
210 >     * execute throws RejectedExecutionException if shutdown
211 >     */
212 >    public void testSchedule1_RejectedExecutionException() {
213 >        ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
214 >        try {
215              se.shutdown();
216 <            se.schedule(new Runnable(){
217 <                    public void run(){}
218 <                }, 10000, TimeUnit.MILLISECONDS);
219 <            fail("shoud throw");
220 <        }catch(RejectedExecutionException e){}    
216 >            se.schedule(new NoOpRunnable(),
217 >                        MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
218 >            shouldThrow();
219 >        } catch(RejectedExecutionException success){
220 >        } catch (SecurityException ok) {
221 >        }
222 >        
223 >        joinPool(se);
224 >
225      }
226  
227      /**
228 <     *  Test to verify schedule(Callable, long, TimeUnit) throws RejectedExecutionException
152 <     *  This occurs on an attempt to schedule a task on a shutdown executor
228 >     * schedule throws RejectedExecutionException if shutdown
229       */
230 <    public void testSchedule2_RejectedExecutionException(){
231 <        try{
232 <            ScheduledExecutor se = new ScheduledExecutor(1);
230 >    public void testSchedule2_RejectedExecutionException() {
231 >        ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
232 >        try {
233              se.shutdown();
234 <            se.schedule(new Callable(){
235 <                    public Object call(){
236 <                        return Boolean.TRUE;
237 <                    }
238 <                }, (long)100, TimeUnit.SECONDS);
239 <            fail("should throw");
240 <        }catch(RejectedExecutionException e){}    
234 >            se.schedule(new NoOpCallable(),
235 >                        MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
236 >            shouldThrow();
237 >        } catch(RejectedExecutionException success){
238 >        } catch (SecurityException ok) {
239 >        }
240 >        joinPool(se);
241      }
242  
243      /**
244 <     *  Test to verify schedule(Callable, long) throws RejectedExecutionException
245 <     *  This occurs on an attempt to schedule a task on a shutdown executor
246 <     */
247 <     public void testSchedule3_RejectedExecutionException(){
248 <        try{
173 <            ScheduledExecutor se = new ScheduledExecutor(1);
244 >     * schedule callable throws RejectedExecutionException if shutdown
245 >     */
246 >     public void testSchedule3_RejectedExecutionException() {
247 >         ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
248 >         try {
249              se.shutdown();
250 <            se.schedule(new Callable(){
251 <                    public Object call(){
252 <                        return Boolean.TRUE;
253 <                    }
254 <                },  10000, TimeUnit.MILLISECONDS);
255 <            fail("should throw");
256 <        }catch(RejectedExecutionException e){}    
250 >            se.schedule(new NoOpCallable(),
251 >                        MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
252 >            shouldThrow();
253 >        } catch(RejectedExecutionException success){
254 >        } catch (SecurityException ok) {
255 >        }
256 >         joinPool(se);
257      }
258  
259      /**
260 <     *  Test to verify scheduleAtFixedRate(Runnable, long, long, TimeUnit) throws
261 <     *  RejectedExecutionException.
262 <     *  This occurs on an attempt to schedule a task on a shutdown executor
263 <     */
264 <    public void testScheduleAtFixedRate1_RejectedExecutionException(){
190 <        try{
191 <            ScheduledExecutor se = new ScheduledExecutor(1);
260 >     *  scheduleAtFixedRate throws RejectedExecutionException if shutdown
261 >     */
262 >    public void testScheduleAtFixedRate1_RejectedExecutionException() {
263 >        ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
264 >        try {
265              se.shutdown();
266 <            se.scheduleAtFixedRate(new Runnable(){
267 <                    public void run(){}
268 <                }, 100, 100, TimeUnit.SECONDS);
269 <            fail("should throw");
270 <        }catch(RejectedExecutionException e){}    
266 >            se.scheduleAtFixedRate(new NoOpRunnable(),
267 >                                   MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
268 >            shouldThrow();
269 >        } catch(RejectedExecutionException success){
270 >        } catch (SecurityException ok) {
271 >        }
272 >        joinPool(se);
273      }
274      
275      /**
276 <     *  Test to verify scheduleAtFixedRate(Runnable, long, long, TimeUnit) throws
277 <     *  RejectedExecutionException.
278 <     *  This occurs on an attempt to schedule a task on a shutdown executor
279 <     */
280 <    public void testScheduleAtFixedRate2_RejectedExecutionException(){
206 <        try{
207 <            ScheduledExecutor se = new ScheduledExecutor(1);
276 >     * scheduleWithFixedDelay throws RejectedExecutionException if shutdown
277 >     */
278 >    public void testScheduleWithFixedDelay1_RejectedExecutionException() {
279 >        ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
280 >        try {
281              se.shutdown();
282 <            se.scheduleAtFixedRate(new Runnable(){
283 <                    public void run(){}
284 <                },  1, 100, TimeUnit.SECONDS);
285 <            fail("should throw");
286 <        }catch(RejectedExecutionException e){}    
282 >            se.scheduleWithFixedDelay(new NoOpRunnable(),
283 >                                      MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
284 >            shouldThrow();
285 >        } catch(RejectedExecutionException success){
286 >        } catch (SecurityException ok) {
287 >        }
288 >        joinPool(se);
289      }
290  
291      /**
292 <     *  Test to verify scheduleWithFixedDelay(Runnable, long, long, TimeUnit) throws
293 <     *  RejectedExecutionException.
219 <     *  This occurs on an attempt to schedule a task on a shutdown executor
292 >     *  getActiveCount increases but doesn't overestimate, when a
293 >     *  thread becomes active
294       */
295 <    public void testScheduleWithFixedDelay1_RejectedExecutionException(){
296 <        try{
297 <            ScheduledExecutor se = new ScheduledExecutor(1);
298 <            se.shutdown();
299 <            se.scheduleWithFixedDelay(new Runnable(){
300 <                    public void run(){}
301 <                }, 100, 100, TimeUnit.SECONDS);
302 <            fail("should throw");
303 <        }catch(RejectedExecutionException e){}    
295 >    public void testGetActiveCount() {
296 >        ScheduledThreadPoolExecutor p2 = new ScheduledThreadPoolExecutor(2);
297 >        assertEquals(0, p2.getActiveCount());
298 >        p2.execute(new SmallRunnable());
299 >        try {
300 >            Thread.sleep(SHORT_DELAY_MS);
301 >        } catch(Exception e){
302 >            unexpectedException();
303 >        }
304 >        assertEquals(1, p2.getActiveCount());
305 >        joinPool(p2);
306 >    }
307 >    
308 >    /**
309 >     *    getCompletedTaskCount increases, but doesn't overestimate,
310 >     *   when tasks complete
311 >     */
312 >    public void testGetCompletedTaskCount() {
313 >        ScheduledThreadPoolExecutor p2 = new ScheduledThreadPoolExecutor(2);
314 >        assertEquals(0, p2.getCompletedTaskCount());
315 >        p2.execute(new SmallRunnable());
316 >        try {
317 >            Thread.sleep(MEDIUM_DELAY_MS);
318 >        } catch(Exception e){
319 >            unexpectedException();
320 >        }
321 >        assertEquals(1, p2.getCompletedTaskCount());
322 >        joinPool(p2);
323 >    }
324 >    
325 >    /**
326 >     *  getCorePoolSize returns size given in constructor if not otherwise set
327 >     */
328 >    public void testGetCorePoolSize() {
329 >        ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
330 >        assertEquals(1, p1.getCorePoolSize());
331 >        joinPool(p1);
332 >    }
333 >    
334 >    /**
335 >     *    getLargestPoolSize increases, but doesn't overestimate, when
336 >     *   multiple threads active
337 >     */
338 >    public void testGetLargestPoolSize() {
339 >        ScheduledThreadPoolExecutor p2 = new ScheduledThreadPoolExecutor(2);
340 >        assertEquals(0, p2.getLargestPoolSize());
341 >        p2.execute(new SmallRunnable());
342 >        p2.execute(new SmallRunnable());
343 >        try {
344 >            Thread.sleep(SHORT_DELAY_MS);
345 >        } catch(Exception e){
346 >            unexpectedException();
347 >        }
348 >        assertEquals(2, p2.getLargestPoolSize());
349 >        joinPool(p2);
350 >    }
351 >    
352 >    /**
353 >     *   getPoolSize increases, but doesn't overestimate, when threads
354 >     *   become active
355 >     */
356 >    public void testGetPoolSize() {
357 >        ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
358 >        assertEquals(0, p1.getPoolSize());
359 >        p1.execute(new SmallRunnable());
360 >        assertEquals(1, p1.getPoolSize());
361 >        joinPool(p1);
362 >    }
363 >    
364 >    /**
365 >     *    getTaskCount increases, but doesn't overestimate, when tasks
366 >     *    submitted
367 >     */
368 >    public void testGetTaskCount() {
369 >        ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
370 >        assertEquals(0, p1.getTaskCount());
371 >        for(int i = 0; i < 5; i++)
372 >            p1.execute(new SmallRunnable());
373 >        try {
374 >            Thread.sleep(SHORT_DELAY_MS);
375 >        } catch(Exception e){
376 >            unexpectedException();
377 >        }
378 >        assertEquals(5, p1.getTaskCount());
379 >        joinPool(p1);
380 >    }
381 >
382 >    /**
383 >     * getThreadFactory returns factory in constructor if not set
384 >     */
385 >    public void testGetThreadFactory() {
386 >        ThreadFactory tf = new SimpleThreadFactory();
387 >        ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1, tf);
388 >        assertSame(tf, p.getThreadFactory());
389 >        joinPool(p);
390 >    }
391 >
392 >    /**
393 >     * setThreadFactory sets the thread factory returned by getThreadFactory
394 >     */
395 >    public void testSetThreadFactory() {
396 >        ThreadFactory tf = new SimpleThreadFactory();
397 >        ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
398 >        p.setThreadFactory(tf);
399 >        assertSame(tf, p.getThreadFactory());
400 >        joinPool(p);
401      }
402  
403 +    /**
404 +     * setThreadFactory(null) throws NPE
405 +     */
406 +    public void testSetThreadFactoryNull() {
407 +        ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
408 +        try {
409 +            p.setThreadFactory(null);
410 +            shouldThrow();
411 +        } catch (NullPointerException success) {
412 +        } finally {
413 +            joinPool(p);
414 +        }
415 +    }
416 +    
417      /**
418 <     *  Test to verify scheduleWithFixedDelay(Runnable, long, long, TimeUnit) throws
234 <     *  RejectedExecutionException.
235 <     *  This occurs on an attempt to schedule a task on a shutdown executor
418 >     *   is isShutDown is false before shutdown, true after
419       */
420 <     public void testScheduleWithFixedDelay2_RejectedExecutionException(){
421 <        try{
422 <            ScheduledExecutor se = new ScheduledExecutor(1);
423 <            se.shutdown();
424 <            se.scheduleWithFixedDelay(new Runnable(){
425 <                    public void run(){}
426 <                },  1, 100, TimeUnit.SECONDS);
427 <            fail("should throw");
428 <        }catch(RejectedExecutionException e){}    
420 >    public void testIsShutdown() {
421 >        
422 >        ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
423 >        try {
424 >            assertFalse(p1.isShutdown());
425 >        }
426 >        finally {
427 >            try { p1.shutdown(); } catch(SecurityException ok) { return; }
428 >        }
429 >        assertTrue(p1.isShutdown());
430      }
431  
432 +        
433      /**
434 <     *  Test to verify execute throws RejectedExecutionException
250 <     *  This occurs on an attempt to schedule a task on a shutdown executor
434 >     *   isTerminated is false before termination, true after
435       */
436 <    public void testExecute_RejectedExecutionException(){
437 <        try{
438 <            ScheduledExecutor se = new ScheduledExecutor(1);
439 <            se.shutdown();
440 <            se.execute(new Runnable(){
441 <                    public void run(){}
442 <                });
443 <            fail("should throw");
444 <        }catch(RejectedExecutionException e){}    
436 >    public void testIsTerminated() {
437 >        ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
438 >        try {
439 >            p1.execute(new SmallRunnable());
440 >        } finally {
441 >            try { p1.shutdown(); } catch(SecurityException ok) { return; }
442 >        }
443 >        try {
444 >            assertTrue(p1.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
445 >            assertTrue(p1.isTerminated());
446 >        } catch(Exception e){
447 >            unexpectedException();
448 >        }      
449 >    }
450 >
451 >    /**
452 >     *  isTerminating is not true when running or when terminated
453 >     */
454 >    public void testIsTerminating() {
455 >        ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
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; }
462 >        }
463 >        try {
464 >            assertTrue(p1.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
465 >            assertTrue(p1.isTerminated());
466 >            assertFalse(p1.isTerminating());
467 >        } catch(Exception e){
468 >            unexpectedException();
469 >        }      
470 >    }
471 >
472 >    /**
473 >     * getQueue returns the work queue, which contains queued tasks
474 >     */
475 >    public void testGetQueue() {
476 >        ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
477 >        ScheduledFuture[] tasks = new ScheduledFuture[5];
478 >        for(int i = 0; i < 5; i++){
479 >            tasks[i] = p1.schedule(new SmallPossiblyInterruptedRunnable(), 1, TimeUnit.MILLISECONDS);
480 >        }
481 >        try {
482 >            Thread.sleep(SHORT_DELAY_MS);
483 >            BlockingQueue<Runnable> q = p1.getQueue();
484 >            assertTrue(q.contains(tasks[4]));
485 >            assertFalse(q.contains(tasks[0]));
486 >        } catch(Exception e) {
487 >            unexpectedException();
488 >        } finally {
489 >            joinPool(p1);
490 >        }
491 >    }
492 >
493 >    /**
494 >     * remove(task) removes queued task, and fails to remove active task
495 >     */
496 >    public void testRemove() {
497 >        ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
498 >        ScheduledFuture[] tasks = new ScheduledFuture[5];
499 >        for(int i = 0; i < 5; i++){
500 >            tasks[i] = p1.schedule(new SmallPossiblyInterruptedRunnable(), 1, TimeUnit.MILLISECONDS);
501 >        }
502 >        try {
503 >            Thread.sleep(SHORT_DELAY_MS);
504 >            BlockingQueue<Runnable> q = p1.getQueue();
505 >            assertFalse(p1.remove((Runnable)tasks[0]));
506 >            assertTrue(q.contains((Runnable)tasks[4]));
507 >            assertTrue(q.contains((Runnable)tasks[3]));
508 >            assertTrue(p1.remove((Runnable)tasks[4]));
509 >            assertFalse(p1.remove((Runnable)tasks[4]));
510 >            assertFalse(q.contains((Runnable)tasks[4]));
511 >            assertTrue(q.contains((Runnable)tasks[3]));
512 >            assertTrue(p1.remove((Runnable)tasks[3]));
513 >            assertFalse(q.contains((Runnable)tasks[3]));
514 >        } catch(Exception e) {
515 >            unexpectedException();
516 >        } finally {
517 >            joinPool(p1);
518 >        }
519 >    }
520 >
521 >    /**
522 >     *  purge removes cancelled tasks from the queue
523 >     */
524 >    public void testPurge() {
525 >        ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
526 >        ScheduledFuture[] tasks = new ScheduledFuture[5];
527 >        for(int i = 0; i < 5; i++){
528 >            tasks[i] = p1.schedule(new SmallPossiblyInterruptedRunnable(), 1, TimeUnit.MILLISECONDS);
529 >        }
530 >        int max = 5;
531 >        if (tasks[4].cancel(true)) --max;
532 >        if (tasks[3].cancel(true)) --max;
533 >        p1.purge();
534 >        long count = p1.getTaskCount();
535 >        assertTrue(count > 0 && count <= max);
536 >        joinPool(p1);
537 >    }
538 >
539 >    /**
540 >     *  shutDownNow returns a list containing tasks that were not run
541 >     */
542 >    public void testShutDownNow() {
543 >        ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
544 >        for(int i = 0; i < 5; i++)
545 >            p1.schedule(new SmallPossiblyInterruptedRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
546 >        List l;
547 >        try {
548 >            l = p1.shutdownNow();
549 >        } catch (SecurityException ok) {
550 >            return;
551 >        }
552 >        assertTrue(p1.isShutdown());
553 >        assertTrue(l.size() > 0 && l.size() <= 5);
554 >        joinPool(p1);
555 >    }
556 >
557 >    /**
558 >     * In default setting, shutdown cancels periodic but not delayed
559 >     * tasks at shutdown
560 >     */
561 >    public void testShutDown1() {
562 >        try {
563 >            ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
564 >            assertTrue(p1.getExecuteExistingDelayedTasksAfterShutdownPolicy());
565 >            assertFalse(p1.getContinueExistingPeriodicTasksAfterShutdownPolicy());
566 >
567 >            ScheduledFuture[] tasks = new ScheduledFuture[5];
568 >            for(int i = 0; i < 5; i++)
569 >                tasks[i] = p1.schedule(new NoOpRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
570 >            try { p1.shutdown(); } catch(SecurityException ok) { return; }
571 >            BlockingQueue q = p1.getQueue();
572 >            for (Iterator it = q.iterator(); it.hasNext();) {
573 >                ScheduledFuture t = (ScheduledFuture)it.next();
574 >                assertFalse(t.isCancelled());
575 >            }
576 >            assertTrue(p1.isShutdown());
577 >            Thread.sleep(SMALL_DELAY_MS);
578 >            for (int i = 0; i < 5; ++i) {
579 >                assertTrue(tasks[i].isDone());
580 >                assertFalse(tasks[i].isCancelled());
581 >            }
582 >            
583 >        }
584 >        catch(Exception ex) {
585 >            unexpectedException();
586 >        }
587 >    }
588 >
589 >
590 >    /**
591 >     * If setExecuteExistingDelayedTasksAfterShutdownPolicy is false,
592 >     * delayed tasks are cancelled at shutdown
593 >     */
594 >    public void testShutDown2() {
595 >        try {
596 >            ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
597 >            p1.setExecuteExistingDelayedTasksAfterShutdownPolicy(false);
598 >            ScheduledFuture[] tasks = new ScheduledFuture[5];
599 >            for(int i = 0; i < 5; i++)
600 >                tasks[i] = p1.schedule(new NoOpRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
601 >            try { p1.shutdown(); } catch(SecurityException ok) { return; }
602 >            assertTrue(p1.isShutdown());
603 >            BlockingQueue q = p1.getQueue();
604 >            assertTrue(q.isEmpty());
605 >            Thread.sleep(SMALL_DELAY_MS);
606 >            assertTrue(p1.isTerminated());
607 >        }
608 >        catch(Exception ex) {
609 >            unexpectedException();
610 >        }
611 >    }
612 >
613 >
614 >    /**
615 >     * If setContinueExistingPeriodicTasksAfterShutdownPolicy is set false,
616 >     * periodic tasks are not cancelled at shutdown
617 >     */
618 >    public void testShutDown3() {
619 >        try {
620 >            ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
621 >            p1.setContinueExistingPeriodicTasksAfterShutdownPolicy(false);
622 >            ScheduledFuture task =
623 >                p1.scheduleAtFixedRate(new NoOpRunnable(), 5, 5, TimeUnit.MILLISECONDS);
624 >            try { p1.shutdown(); } catch(SecurityException ok) { return; }
625 >            assertTrue(p1.isShutdown());
626 >            BlockingQueue q = p1.getQueue();
627 >            assertTrue(q.isEmpty());
628 >            Thread.sleep(SHORT_DELAY_MS);
629 >            assertTrue(p1.isTerminated());
630 >        }
631 >        catch(Exception ex) {
632 >            unexpectedException();
633 >        }
634 >    }
635 >
636 >    /**
637 >     * if setContinueExistingPeriodicTasksAfterShutdownPolicy is true,
638 >     * periodic tasks are cancelled at shutdown
639 >     */
640 >    public void testShutDown4() {
641 >        ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
642 >        try {
643 >            p1.setContinueExistingPeriodicTasksAfterShutdownPolicy(true);
644 >            ScheduledFuture task =
645 >                p1.scheduleAtFixedRate(new NoOpRunnable(), 1, 1, TimeUnit.MILLISECONDS);
646 >            assertFalse(task.isCancelled());
647 >            try { p1.shutdown(); } catch(SecurityException ok) { return; }
648 >            assertFalse(task.isCancelled());
649 >            assertFalse(p1.isTerminated());
650 >            assertTrue(p1.isShutdown());
651 >            Thread.sleep(SHORT_DELAY_MS);
652 >            assertFalse(task.isCancelled());
653 >            assertTrue(task.cancel(true));
654 >            assertTrue(task.isDone());
655 >            Thread.sleep(SHORT_DELAY_MS);
656 >            assertTrue(p1.isTerminated());
657 >        }
658 >        catch(Exception ex) {
659 >            unexpectedException();
660 >        }
661 >        finally {
662 >            joinPool(p1);
663 >        }
664 >    }
665 >
666 >    /**
667 >     * completed submit of callable returns result
668 >     */
669 >    public void testSubmitCallable() {
670 >        ExecutorService e = new ScheduledThreadPoolExecutor(2);
671 >        try {
672 >            Future<String> future = e.submit(new StringTask());
673 >            String result = future.get();
674 >            assertSame(TEST_STRING, result);
675 >        }
676 >        catch (ExecutionException ex) {
677 >            unexpectedException();
678 >        }
679 >        catch (InterruptedException ex) {
680 >            unexpectedException();
681 >        } finally {
682 >            joinPool(e);
683 >        }
684 >    }
685 >
686 >    /**
687 >     * completed submit of runnable returns successfully
688 >     */
689 >    public void testSubmitRunnable() {
690 >        ExecutorService e = new ScheduledThreadPoolExecutor(2);
691 >        try {
692 >            Future<?> future = e.submit(new NoOpRunnable());
693 >            future.get();
694 >            assertTrue(future.isDone());
695 >        }
696 >        catch (ExecutionException ex) {
697 >            unexpectedException();
698 >        }
699 >        catch (InterruptedException ex) {
700 >            unexpectedException();
701 >        } finally {
702 >            joinPool(e);
703 >        }
704 >    }
705 >
706 >    /**
707 >     * completed submit of (runnable, result) returns result
708 >     */
709 >    public void testSubmitRunnable2() {
710 >        ExecutorService e = new ScheduledThreadPoolExecutor(2);
711 >        try {
712 >            Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING);
713 >            String result = future.get();
714 >            assertSame(TEST_STRING, result);
715 >        }
716 >        catch (ExecutionException ex) {
717 >            unexpectedException();
718 >        }
719 >        catch (InterruptedException ex) {
720 >            unexpectedException();
721 >        } finally {
722 >            joinPool(e);
723 >        }
724 >    }
725 >
726 >    /**
727 >     * invokeAny(null) throws NPE
728 >     */
729 >    public void testInvokeAny1() {
730 >        ExecutorService e = new ScheduledThreadPoolExecutor(2);
731 >        try {
732 >            e.invokeAny(null);
733 >        } catch (NullPointerException success) {
734 >        } catch(Exception ex) {
735 >            unexpectedException();
736 >        } finally {
737 >            joinPool(e);
738 >        }
739 >    }
740 >
741 >    /**
742 >     * invokeAny(empty collection) throws IAE
743 >     */
744 >    public void testInvokeAny2() {
745 >        ExecutorService e = new ScheduledThreadPoolExecutor(2);
746 >        try {
747 >            e.invokeAny(new ArrayList<Callable<String>>());
748 >        } catch (IllegalArgumentException success) {
749 >        } catch(Exception ex) {
750 >            unexpectedException();
751 >        } finally {
752 >            joinPool(e);
753 >        }
754 >    }
755 >
756 >    /**
757 >     * invokeAny(c) throws NPE if c has null elements
758 >     */
759 >    public void testInvokeAny3() {
760 >        ExecutorService e = new ScheduledThreadPoolExecutor(2);
761 >        try {
762 >            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
763 >            l.add(new StringTask());
764 >            l.add(null);
765 >            e.invokeAny(l);
766 >        } catch (NullPointerException success) {
767 >        } catch(Exception ex) {
768 >            unexpectedException();
769 >        } finally {
770 >            joinPool(e);
771 >        }
772 >    }
773 >
774 >    /**
775 >     * invokeAny(c) throws ExecutionException if no task completes
776 >     */
777 >    public void testInvokeAny4() {
778 >        ExecutorService e = new ScheduledThreadPoolExecutor(2);
779 >        try {
780 >            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
781 >            l.add(new NPETask());
782 >            e.invokeAny(l);
783 >        } catch (ExecutionException success) {
784 >        } catch(Exception ex) {
785 >            unexpectedException();
786 >        } finally {
787 >            joinPool(e);
788 >        }
789 >    }
790 >
791 >    /**
792 >     * invokeAny(c) returns result of some task
793 >     */
794 >    public void testInvokeAny5() {
795 >        ExecutorService e = new ScheduledThreadPoolExecutor(2);
796 >        try {
797 >            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
798 >            l.add(new StringTask());
799 >            l.add(new StringTask());
800 >            String result = e.invokeAny(l);
801 >            assertSame(TEST_STRING, result);
802 >        } catch (ExecutionException success) {
803 >        } catch(Exception ex) {
804 >            unexpectedException();
805 >        } finally {
806 >            joinPool(e);
807 >        }
808      }
809  
810 +    /**
811 +     * invokeAll(null) throws NPE
812 +     */
813 +    public void testInvokeAll1() {
814 +        ExecutorService e = new ScheduledThreadPoolExecutor(2);
815 +        try {
816 +            e.invokeAll(null);
817 +        } catch (NullPointerException success) {
818 +        } catch(Exception ex) {
819 +            unexpectedException();
820 +        } finally {
821 +            joinPool(e);
822 +        }
823 +    }
824 +
825 +    /**
826 +     * invokeAll(empty collection) returns empty collection
827 +     */
828 +    public void testInvokeAll2() {
829 +        ExecutorService e = new ScheduledThreadPoolExecutor(2);
830 +        try {
831 +            List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>());
832 +            assertTrue(r.isEmpty());
833 +        } catch(Exception ex) {
834 +            unexpectedException();
835 +        } finally {
836 +            joinPool(e);
837 +        }
838 +    }
839 +
840 +    /**
841 +     * invokeAll(c) throws NPE if c has null elements
842 +     */
843 +    public void testInvokeAll3() {
844 +        ExecutorService e = new ScheduledThreadPoolExecutor(2);
845 +        try {
846 +            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
847 +            l.add(new StringTask());
848 +            l.add(null);
849 +            e.invokeAll(l);
850 +        } catch (NullPointerException success) {
851 +        } catch(Exception ex) {
852 +            unexpectedException();
853 +        } finally {
854 +            joinPool(e);
855 +        }
856 +    }
857 +
858 +    /**
859 +     * get of invokeAll(c) throws exception on failed task
860 +     */
861 +    public void testInvokeAll4() {
862 +        ExecutorService e = new ScheduledThreadPoolExecutor(2);
863 +        try {
864 +            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
865 +            l.add(new NPETask());
866 +            List<Future<String>> result = e.invokeAll(l);
867 +            assertEquals(1, result.size());
868 +            for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
869 +                it.next().get();
870 +        } catch(ExecutionException success) {
871 +        } catch(Exception ex) {
872 +            unexpectedException();
873 +        } finally {
874 +            joinPool(e);
875 +        }
876 +    }
877 +
878 +    /**
879 +     * invokeAll(c) returns results of all completed tasks
880 +     */
881 +    public void testInvokeAll5() {
882 +        ExecutorService e = new ScheduledThreadPoolExecutor(2);
883 +        try {
884 +            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
885 +            l.add(new StringTask());
886 +            l.add(new StringTask());
887 +            List<Future<String>> result = e.invokeAll(l);
888 +            assertEquals(2, result.size());
889 +            for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
890 +                assertSame(TEST_STRING, it.next().get());
891 +        } catch (ExecutionException success) {
892 +        } catch(Exception ex) {
893 +            unexpectedException();
894 +        } finally {
895 +            joinPool(e);
896 +        }
897 +    }
898 +
899 +    /**
900 +     * timed invokeAny(null) throws NPE
901 +     */
902 +    public void testTimedInvokeAny1() {
903 +        ExecutorService e = new ScheduledThreadPoolExecutor(2);
904 +        try {
905 +            e.invokeAny(null, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
906 +        } catch (NullPointerException success) {
907 +        } catch(Exception ex) {
908 +            unexpectedException();
909 +        } finally {
910 +            joinPool(e);
911 +        }
912 +    }
913 +
914 +    /**
915 +     * timed invokeAny(,,null) throws NPE
916 +     */
917 +    public void testTimedInvokeAnyNullTimeUnit() {
918 +        ExecutorService e = new ScheduledThreadPoolExecutor(2);
919 +        try {
920 +            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
921 +            l.add(new StringTask());
922 +            e.invokeAny(l, MEDIUM_DELAY_MS, null);
923 +        } catch (NullPointerException success) {
924 +        } catch(Exception ex) {
925 +            unexpectedException();
926 +        } finally {
927 +            joinPool(e);
928 +        }
929 +    }
930 +
931 +    /**
932 +     * timed invokeAny(empty collection) throws IAE
933 +     */
934 +    public void testTimedInvokeAny2() {
935 +        ExecutorService e = new ScheduledThreadPoolExecutor(2);
936 +        try {
937 +            e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
938 +        } catch (IllegalArgumentException success) {
939 +        } catch(Exception ex) {
940 +            unexpectedException();
941 +        } finally {
942 +            joinPool(e);
943 +        }
944 +    }
945 +
946 +    /**
947 +     * timed invokeAny(c) throws NPE if c has null elements
948 +     */
949 +    public void testTimedInvokeAny3() {
950 +        ExecutorService e = new ScheduledThreadPoolExecutor(2);
951 +        try {
952 +            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
953 +            l.add(new StringTask());
954 +            l.add(null);
955 +            e.invokeAny(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
956 +        } catch (NullPointerException success) {
957 +        } catch(Exception ex) {
958 +            ex.printStackTrace();
959 +            unexpectedException();
960 +        } finally {
961 +            joinPool(e);
962 +        }
963 +    }
964 +
965 +    /**
966 +     * timed invokeAny(c) throws ExecutionException if no task completes
967 +     */
968 +    public void testTimedInvokeAny4() {
969 +        ExecutorService e = new ScheduledThreadPoolExecutor(2);
970 +        try {
971 +            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
972 +            l.add(new NPETask());
973 +            e.invokeAny(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
974 +        } catch(ExecutionException success) {
975 +        } catch(Exception ex) {
976 +            unexpectedException();
977 +        } finally {
978 +            joinPool(e);
979 +        }
980 +    }
981 +
982 +    /**
983 +     * timed invokeAny(c) returns result of some task
984 +     */
985 +    public void testTimedInvokeAny5() {
986 +        ExecutorService e = new ScheduledThreadPoolExecutor(2);
987 +        try {
988 +            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
989 +            l.add(new StringTask());
990 +            l.add(new StringTask());
991 +            String result = e.invokeAny(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
992 +            assertSame(TEST_STRING, result);
993 +        } catch (ExecutionException success) {
994 +        } catch(Exception ex) {
995 +            unexpectedException();
996 +        } finally {
997 +            joinPool(e);
998 +        }
999 +    }
1000 +
1001 +    /**
1002 +     * timed invokeAll(null) throws NPE
1003 +     */
1004 +    public void testTimedInvokeAll1() {
1005 +        ExecutorService e = new ScheduledThreadPoolExecutor(2);
1006 +        try {
1007 +            e.invokeAll(null, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1008 +        } catch (NullPointerException success) {
1009 +        } catch(Exception ex) {
1010 +            unexpectedException();
1011 +        } finally {
1012 +            joinPool(e);
1013 +        }
1014 +    }
1015 +
1016 +    /**
1017 +     * timed invokeAll(,,null) throws NPE
1018 +     */
1019 +    public void testTimedInvokeAllNullTimeUnit() {
1020 +        ExecutorService e = new ScheduledThreadPoolExecutor(2);
1021 +        try {
1022 +            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1023 +            l.add(new StringTask());
1024 +            e.invokeAll(l, MEDIUM_DELAY_MS, null);
1025 +        } catch (NullPointerException success) {
1026 +        } catch(Exception ex) {
1027 +            unexpectedException();
1028 +        } finally {
1029 +            joinPool(e);
1030 +        }
1031 +    }
1032 +
1033 +    /**
1034 +     * timed invokeAll(empty collection) returns empty collection
1035 +     */
1036 +    public void testTimedInvokeAll2() {
1037 +        ExecutorService e = new ScheduledThreadPoolExecutor(2);
1038 +        try {
1039 +            List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1040 +            assertTrue(r.isEmpty());
1041 +        } catch(Exception ex) {
1042 +            unexpectedException();
1043 +        } finally {
1044 +            joinPool(e);
1045 +        }
1046 +    }
1047 +
1048 +    /**
1049 +     * timed invokeAll(c) throws NPE if c has null elements
1050 +     */
1051 +    public void testTimedInvokeAll3() {
1052 +        ExecutorService e = new ScheduledThreadPoolExecutor(2);
1053 +        try {
1054 +            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1055 +            l.add(new StringTask());
1056 +            l.add(null);
1057 +            e.invokeAll(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1058 +        } catch (NullPointerException success) {
1059 +        } catch(Exception ex) {
1060 +            unexpectedException();
1061 +        } finally {
1062 +            joinPool(e);
1063 +        }
1064 +    }
1065 +
1066 +    /**
1067 +     * get of element of invokeAll(c) throws exception on failed task
1068 +     */
1069 +    public void testTimedInvokeAll4() {
1070 +        ExecutorService e = new ScheduledThreadPoolExecutor(2);
1071 +        try {
1072 +            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1073 +            l.add(new NPETask());
1074 +            List<Future<String>> result = e.invokeAll(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1075 +            assertEquals(1, result.size());
1076 +            for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
1077 +                it.next().get();
1078 +        } catch(ExecutionException success) {
1079 +        } catch(Exception ex) {
1080 +            unexpectedException();
1081 +        } finally {
1082 +            joinPool(e);
1083 +        }
1084 +    }
1085 +
1086 +    /**
1087 +     * timed invokeAll(c) returns results of all completed tasks
1088 +     */
1089 +    public void testTimedInvokeAll5() {
1090 +        ExecutorService e = new ScheduledThreadPoolExecutor(2);
1091 +        try {
1092 +            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1093 +            l.add(new StringTask());
1094 +            l.add(new StringTask());
1095 +            List<Future<String>> result = e.invokeAll(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1096 +            assertEquals(2, result.size());
1097 +            for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
1098 +                assertSame(TEST_STRING, it.next().get());
1099 +        } catch (ExecutionException success) {
1100 +        } catch(Exception ex) {
1101 +            unexpectedException();
1102 +        } finally {
1103 +            joinPool(e);
1104 +        }
1105 +    }
1106 +
1107 +    /**
1108 +     * timed invokeAll(c) cancels tasks not completed by timeout
1109 +     */
1110 +    public void testTimedInvokeAll6() {
1111 +        ExecutorService e = new ScheduledThreadPoolExecutor(2);
1112 +        try {
1113 +            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
1114 +            l.add(new StringTask());
1115 +            l.add(Executors.callable(new MediumPossiblyInterruptedRunnable(), TEST_STRING));
1116 +            l.add(new StringTask());
1117 +            List<Future<String>> result = e.invokeAll(l, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
1118 +            assertEquals(3, result.size());
1119 +            Iterator<Future<String>> it = result.iterator();
1120 +            Future<String> f1 = it.next();
1121 +            Future<String> f2 = it.next();
1122 +            Future<String> f3 = it.next();
1123 +            assertTrue(f1.isDone());
1124 +            assertTrue(f2.isDone());
1125 +            assertTrue(f3.isDone());
1126 +            assertFalse(f1.isCancelled());
1127 +            assertTrue(f2.isCancelled());
1128 +        } catch(Exception ex) {
1129 +            unexpectedException();
1130 +        } finally {
1131 +            joinPool(e);
1132 +        }
1133 +    }
1134 +
1135 +
1136   }

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