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root/jsr166/jsr166/src/test/tck/ScheduledExecutorTest.java

Comparing jsr166/src/test/tck/ScheduledExecutorTest.java (file contents):
Revision 1.5 by dl, Sat Sep 20 18:20:08 2003 UTC vs.
Revision 1.53 by jsr166, Sun Sep 27 18:50:50 2015 UTC

#	Line 1 | Line 1
1		/*
2	<	* Written by members of JCP JSR-166 Expert Group and released to the
3	<	* public domain. Use, modify, and redistribute this code in any way
4	<	* without acknowledgement. Other contributors include Andrew Wright,
5	<	* Jeffrey Hayes, Pat Fischer, Mike Judd.
2	>	* Written by Doug Lea with assistance from members of JCP JSR-166
3	>	* Expert Group and released to the public domain, as explained at
4	>	* http://creativecommons.org/publicdomain/zero/1.0/
5	>	* Other contributors include Andrew Wright, Jeffrey Hayes,
6	>	* Pat Fisher, Mike Judd.
7		*/
8
9	<	import junit.framework.*;
10	<	import java.util.*;
11	<	import java.util.concurrent.*;
9	>	import static java.util.concurrent.TimeUnit.MILLISECONDS;
10	>
11	>	import java.util.ArrayList;
12	>	import java.util.List;
13	>	import java.util.concurrent.BlockingQueue;
14	>	import java.util.concurrent.Callable;
15	>	import java.util.concurrent.CancellationException;
16	>	import java.util.concurrent.CountDownLatch;
17	>	import java.util.concurrent.ExecutionException;
18	>	import java.util.concurrent.Executors;
19	>	import java.util.concurrent.ExecutorService;
20	>	import java.util.concurrent.Future;
21	>	import java.util.concurrent.RejectedExecutionException;
22	>	import java.util.concurrent.ScheduledFuture;
23	>	import java.util.concurrent.ScheduledThreadPoolExecutor;
24	>	import java.util.concurrent.ThreadFactory;
25	>	import java.util.concurrent.ThreadPoolExecutor;
26	>	import java.util.concurrent.atomic.AtomicInteger;
27	>
28	>	import junit.framework.Test;
29	>	import junit.framework.TestSuite;
30
31		public class ScheduledExecutorTest extends JSR166TestCase {
32		public static void main(String[] args) {
33	<	junit.textui.TestRunner.run (suite());
33	>	main(suite(), args);
34		}
35		public static Test suite() {
36	<	return new TestSuite(ScheduledExecutorTest.class);
36	>	return new TestSuite(ScheduledExecutorTest.class);
37		}
38
39	<	static class MyRunnable implements Runnable {
40	<	volatile boolean done = false;
41	<	public void run() {
42	<	try {
43	<	Thread.sleep(SMALL_DELAY_MS);
44	<	done = true;
45	<	} catch(Exception e){
46	<	}
39	>	/**
40	>	* execute successfully executes a runnable
41	>	*/
42	>	public void testExecute() throws InterruptedException {
43	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
44	>	final CountDownLatch done = new CountDownLatch(1);
45	>	final Runnable task = new CheckedRunnable() {
46	>	public void realRun() {
47	>	done.countDown();
48	>	}};
49	>	try {
50	>	p.execute(task);
51	>	assertTrue(done.await(SMALL_DELAY_MS, MILLISECONDS));
52	>	} finally {
53	>	joinPool(p);
54		}
55		}
56
57	<	static class MyCallable implements Callable {
58	<	volatile boolean done = false;
59	<	public Object call() {
60	<	try {
61	<	Thread.sleep(SMALL_DELAY_MS);
62	<	done = true;
63	<	} catch(Exception e){
64	<	}
65	<	return Boolean.TRUE;
57	>	/**
58	>	* delayed schedule of callable successfully executes after delay
59	>	*/
60	>	public void testSchedule1() throws Exception {
61	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
62	>	final long startTime = System.nanoTime();
63	>	final CountDownLatch done = new CountDownLatch(1);
64	>	try {
65	>	Callable task = new CheckedCallable<Boolean>() {
66	>	public Boolean realCall() {
67	>	done.countDown();
68	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
69	>	return Boolean.TRUE;
70	>	}};
71	>	Future f = p.schedule(task, timeoutMillis(), MILLISECONDS);
72	>	assertSame(Boolean.TRUE, f.get());
73	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
74	>	assertTrue(done.await(0L, MILLISECONDS));
75	>	} finally {
76	>	joinPool(p);
77		}
78		}
79
80		/**
81	<	*
81	>	* delayed schedule of runnable successfully executes after delay
82		*/
83	<	public void testExecute() {
84	<	try {
85	<	MyRunnable runnable =new MyRunnable();
86	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
87	<	p1.execute(runnable);
88	<	assertFalse(runnable.done);
89	<	Thread.sleep(SHORT_DELAY_MS);
90	<	p1.shutdown();
91	<	try {
92	<	Thread.sleep(MEDIUM_DELAY_MS);
93	<	} catch(InterruptedException e){
94	<	unexpectedException();
95	<	}
96	<	assertTrue(runnable.done);
97	<	p1.shutdown();
98	<	joinPool(p1);
83	>	public void testSchedule3() throws Exception {
84	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
85	>	final long startTime = System.nanoTime();
86	>	final CountDownLatch done = new CountDownLatch(1);
87	>	try {
88	>	Runnable task = new CheckedRunnable() {
89	>	public void realRun() {
90	>	done.countDown();
91	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
92	>	}};
93	>	Future f = p.schedule(task, timeoutMillis(), MILLISECONDS);
94	>	await(done);
95	>	assertNull(f.get(LONG_DELAY_MS, MILLISECONDS));
96	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
97	>	} finally {
98	>	joinPool(p);
99		}
100	<	catch(Exception e){
101	<	unexpectedException();
100	>	}
101	>
102	>	/**
103	>	* scheduleAtFixedRate executes runnable after given initial delay
104	>	*/
105	>	public void testSchedule4() throws Exception {
106	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
107	>	final long startTime = System.nanoTime();
108	>	final CountDownLatch done = new CountDownLatch(1);
109	>	try {
110	>	Runnable task = new CheckedRunnable() {
111	>	public void realRun() {
112	>	done.countDown();
113	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
114	>	}};
115	>	ScheduledFuture f =
116	>	p.scheduleAtFixedRate(task, timeoutMillis(),
117	>	LONG_DELAY_MS, MILLISECONDS);
118	>	await(done);
119	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
120	>	f.cancel(true);
121	>	} finally {
122	>	joinPool(p);
123		}
66	–
124		}
125
126		/**
127	<	*
127	>	* scheduleWithFixedDelay executes runnable after given initial delay
128		*/
129	<	public void testSchedule1() {
130	<	try {
131	<	MyCallable callable = new MyCallable();
132	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
133	<	Future f = p1.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
134	<	assertFalse(callable.done);
135	<	Thread.sleep(MEDIUM_DELAY_MS);
136	<	assertTrue(callable.done);
137	<	assertEquals(Boolean.TRUE, f.get());
138	<	p1.shutdown();
139	<	joinPool(p1);
140	<	} catch(RejectedExecutionException e){}
141	<	catch(Exception e){
142	<	unexpectedException();
129	>	public void testSchedule5() throws Exception {
130	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
131	>	final long startTime = System.nanoTime();
132	>	final CountDownLatch done = new CountDownLatch(1);
133	>	try {
134	>	Runnable task = new CheckedRunnable() {
135	>	public void realRun() {
136	>	done.countDown();
137	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
138	>	}};
139	>	ScheduledFuture f =
140	>	p.scheduleWithFixedDelay(task, timeoutMillis(),
141	>	LONG_DELAY_MS, MILLISECONDS);
142	>	await(done);
143	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
144	>	f.cancel(true);
145	>	} finally {
146	>	joinPool(p);
147		}
148		}
149
150	+	static class RunnableCounter implements Runnable {
151	+	AtomicInteger count = new AtomicInteger(0);
152	+	public void run() { count.getAndIncrement(); }
153	+	}
154	+
155		/**
156	<	*
156	>	* scheduleAtFixedRate executes series of tasks at given rate
157		*/
158	<	public void testSchedule3() {
159	<	try {
160	<	MyRunnable runnable = new MyRunnable();
161	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
162	<	p1.schedule(runnable, SMALL_DELAY_MS, TimeUnit.MILLISECONDS);
163	<	Thread.sleep(SHORT_DELAY_MS);
164	<	assertFalse(runnable.done);
165	<	Thread.sleep(MEDIUM_DELAY_MS);
166	<	assertTrue(runnable.done);
167	<	p1.shutdown();
168	<	joinPool(p1);
169	<	} catch(Exception e){
170	<	unexpectedException();
158	>	public void testFixedRateSequence() throws InterruptedException {
159	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
160	>	try {
161	>	for (int delay = 1; delay <= LONG_DELAY_MS; delay *= 3) {
162	>	long startTime = System.nanoTime();
163	>	int cycles = 10;
164	>	final CountDownLatch done = new CountDownLatch(cycles);
165	>	Runnable task = new CheckedRunnable() {
166	>	public void realRun() { done.countDown(); }};
167	>	ScheduledFuture h =
168	>	p.scheduleAtFixedRate(task, 0, delay, MILLISECONDS);
169	>	done.await();
170	>	h.cancel(true);
171	>	double normalizedTime =
172	>	(double) millisElapsedSince(startTime) / delay;
173	>	if (normalizedTime >= cycles - 1 &&
174	>	normalizedTime <= cycles)
175	>	return;
176	>	}
177	>	throw new AssertionError("unexpected execution rate");
178	>	} finally {
179	>	joinPool(p);
180		}
181		}
182	<
182	>
183		/**
184	<	*
184	>	* scheduleWithFixedDelay executes series of tasks with given period
185		*/
186	<	public void testSchedule4() {
187	<	try {
188	<	MyRunnable runnable = new MyRunnable();
189	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
190	<	p1.schedule(runnable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
191	<	assertFalse(runnable.done);
192	<	Thread.sleep(MEDIUM_DELAY_MS);
193	<	assertTrue(runnable.done);
194	<	p1.shutdown();
195	<	joinPool(p1);
196	<	} catch(Exception e){
197	<	unexpectedException();
186	>	public void testFixedDelaySequence() throws InterruptedException {
187	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
188	>	try {
189	>	for (int delay = 1; delay <= LONG_DELAY_MS; delay *= 3) {
190	>	long startTime = System.nanoTime();
191	>	int cycles = 10;
192	>	final CountDownLatch done = new CountDownLatch(cycles);
193	>	Runnable task = new CheckedRunnable() {
194	>	public void realRun() { done.countDown(); }};
195	>	ScheduledFuture h =
196	>	p.scheduleWithFixedDelay(task, 0, delay, MILLISECONDS);
197	>	done.await();
198	>	h.cancel(true);
199	>	double normalizedTime =
200	>	(double) millisElapsedSince(startTime) / delay;
201	>	if (normalizedTime >= cycles - 1 &&
202	>	normalizedTime <= cycles)
203	>	return;
204	>	}
205	>	throw new AssertionError("unexpected execution rate");
206	>	} finally {
207	>	joinPool(p);
208		}
209		}
125	–
126	–
127	–	// exception tests
210
211		/**
212	<	*   schedule(Runnable, long) throws RejectedExecutionException
131	<	*  This occurs on an attempt to schedule a task on a shutdown executor
212	>	* execute(null) throws NPE
213		*/
214	<	public void testSchedule1_RejectedExecutionException() {
215	<	ScheduledExecutor se = new ScheduledExecutor(1);
214	>	public void testExecuteNull() throws InterruptedException {
215	>	ScheduledThreadPoolExecutor se = null;
216		try {
217	<	se.shutdown();
218	<	se.schedule(new NoOpRunnable(),
138	<	MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
217	>	se = new ScheduledThreadPoolExecutor(1);
218	>	se.execute(null);
219		shouldThrow();
220	<	} catch(RejectedExecutionException success){
221	<	}
220	>	} catch (NullPointerException success) {}
221	>
222		joinPool(se);
223	+	}
224
225	+	/**
226	+	* schedule(null) throws NPE
227	+	*/
228	+	public void testScheduleNull() throws InterruptedException {
229	+	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
230	+	try {
231	+	TrackedCallable callable = null;
232	+	Future f = se.schedule(callable, SHORT_DELAY_MS, MILLISECONDS);
233	+	shouldThrow();
234	+	} catch (NullPointerException success) {}
235	+	joinPool(se);
236		}
237
238		/**
239	<	*   schedule(Callable, long, TimeUnit) throws RejectedExecutionException
148	<	*  This occurs on an attempt to schedule a task on a shutdown executor
239	>	* execute throws RejectedExecutionException if shutdown
240		*/
241	<	public void testSchedule2_RejectedExecutionException() {
242	<	ScheduledExecutor se = new ScheduledExecutor(1);
241	>	public void testSchedule1_RejectedExecutionException() throws InterruptedException {
242	>	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
243		try {
244		se.shutdown();
245	<	se.schedule(new NoOpCallable(),
246	<	MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
245	>	se.schedule(new NoOpRunnable(),
246	>	MEDIUM_DELAY_MS, MILLISECONDS);
247		shouldThrow();
248	<	} catch(RejectedExecutionException success){
248	>	} catch (RejectedExecutionException success) {
249	>	} catch (SecurityException ok) {
250		}
251	+
252		joinPool(se);
253		}
254
255		/**
256	<	*   schedule(Callable, long) throws RejectedExecutionException
164	<	*  This occurs on an attempt to schedule a task on a shutdown executor
256	>	* schedule throws RejectedExecutionException if shutdown
257		*/
258	<	public void testSchedule3_RejectedExecutionException() {
259	<	ScheduledExecutor se = new ScheduledExecutor(1);
260	<	try {
258	>	public void testSchedule2_RejectedExecutionException() throws InterruptedException {
259	>	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
260	>	try {
261		se.shutdown();
262		se.schedule(new NoOpCallable(),
263	<	MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
263	>	MEDIUM_DELAY_MS, MILLISECONDS);
264		shouldThrow();
265	<	} catch(RejectedExecutionException success){
266	<	}
267	<	joinPool(se);
265	>	} catch (RejectedExecutionException success) {
266	>	} catch (SecurityException ok) {
267	>	}
268	>	joinPool(se);
269		}
270
271		/**
272	<	*   scheduleAtFixedRate(Runnable, long, long, TimeUnit) throws
180	<	*  RejectedExecutionException.
181	<	*  This occurs on an attempt to schedule a task on a shutdown executor
272	>	* schedule callable throws RejectedExecutionException if shutdown
273		*/
274	<	public void testScheduleAtFixedRate1_RejectedExecutionException() {
275	<	ScheduledExecutor se = new ScheduledExecutor(1);
274	>	public void testSchedule3_RejectedExecutionException() throws InterruptedException {
275	>	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
276		try {
277		se.shutdown();
278	<	se.scheduleAtFixedRate(new NoOpRunnable(),
279	<	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
278	>	se.schedule(new NoOpCallable(),
279	>	MEDIUM_DELAY_MS, MILLISECONDS);
280		shouldThrow();
281	<	} catch(RejectedExecutionException success){
282	<	}
281	>	} catch (RejectedExecutionException success) {
282	>	} catch (SecurityException ok) {
283	>	}
284		joinPool(se);
285		}
286	<
286	>
287		/**
288	<	*   scheduleAtFixedRate(Runnable, long, long, TimeUnit) throws
197	<	*  RejectedExecutionException.
198	<	*  This occurs on an attempt to schedule a task on a shutdown executor
288	>	* scheduleAtFixedRate throws RejectedExecutionException if shutdown
289		*/
290	<	public void testScheduleAtFixedRate2_RejectedExecutionException() {
291	<	ScheduledExecutor se = new ScheduledExecutor(1);
290	>	public void testScheduleAtFixedRate1_RejectedExecutionException() throws InterruptedException {
291	>	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
292		try {
293		se.shutdown();
294		se.scheduleAtFixedRate(new NoOpRunnable(),
295	<	1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
295	>	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS);
296		shouldThrow();
297	<	} catch(RejectedExecutionException success){
298	<	}
297	>	} catch (RejectedExecutionException success) {
298	>	} catch (SecurityException ok) {
299	>	}
300		joinPool(se);
301		}
302
303		/**
304	<	*   scheduleWithFixedDelay(Runnable, long, long, TimeUnit) throws
214	<	*  RejectedExecutionException.
215	<	*  This occurs on an attempt to schedule a task on a shutdown executor
304	>	* scheduleWithFixedDelay throws RejectedExecutionException if shutdown
305		*/
306	<	public void testScheduleWithFixedDelay1_RejectedExecutionException() {
307	<	ScheduledExecutor se = new ScheduledExecutor(1);
306	>	public void testScheduleWithFixedDelay1_RejectedExecutionException() throws InterruptedException {
307	>	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
308		try {
309		se.shutdown();
310		se.scheduleWithFixedDelay(new NoOpRunnable(),
311	<	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
311	>	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS);
312		shouldThrow();
313	<	} catch(RejectedExecutionException success){
314	<	}
313	>	} catch (RejectedExecutionException success) {
314	>	} catch (SecurityException ok) {
315	>	}
316		joinPool(se);
317		}
318
319		/**
320	<	*   scheduleWithFixedDelay(Runnable, long, long, TimeUnit) throws
321	<	*  RejectedExecutionException.
232	<	*  This occurs on an attempt to schedule a task on a shutdown executor
320	>	* getActiveCount increases but doesn't overestimate, when a
321	>	* thread becomes active
322		*/
323	<	public void testScheduleWithFixedDelay2_RejectedExecutionException() {
324	<	ScheduledExecutor se = new ScheduledExecutor(1);
323	>	public void testGetActiveCount() throws InterruptedException {
324	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(2);
325	>	final CountDownLatch threadStarted = new CountDownLatch(1);
326	>	final CountDownLatch done = new CountDownLatch(1);
327		try {
328	<	se.shutdown();
329	<	se.scheduleWithFixedDelay(new NoOpRunnable(),
330	<	1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
331	<	shouldThrow();
332	<	} catch(RejectedExecutionException success){
333	<	}
334	<	joinPool(se);
328	>	assertEquals(0, p.getActiveCount());
329	>	p.execute(new CheckedRunnable() {
330	>	public void realRun() throws InterruptedException {
331	>	threadStarted.countDown();
332	>	assertEquals(1, p.getActiveCount());
333	>	done.await();
334	>	}});
335	>	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
336	>	assertEquals(1, p.getActiveCount());
337	>	} finally {
338	>	done.countDown();
339	>	joinPool(p);
340	>	}
341		}
342
343		/**
344	<	*   execute throws RejectedExecutionException
345	<	*  This occurs on an attempt to schedule a task on a shutdown executor
344	>	* getCompletedTaskCount increases, but doesn't overestimate,
345	>	* when tasks complete
346		*/
347	<	public void testExecute_RejectedExecutionException() {
348	<	ScheduledExecutor se = new ScheduledExecutor(1);
347	>	public void testGetCompletedTaskCount() throws InterruptedException {
348	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(2);
349	>	final CountDownLatch threadStarted = new CountDownLatch(1);
350	>	final CountDownLatch threadProceed = new CountDownLatch(1);
351	>	final CountDownLatch threadDone = new CountDownLatch(1);
352		try {
353	<	se.shutdown();
354	<	se.execute(new NoOpRunnable());
353	>	assertEquals(0, p.getCompletedTaskCount());
354	>	p.execute(new CheckedRunnable() {
355	>	public void realRun() throws InterruptedException {
356	>	threadStarted.countDown();
357	>	assertEquals(0, p.getCompletedTaskCount());
358	>	threadProceed.await();
359	>	threadDone.countDown();
360	>	}});
361	>	await(threadStarted);
362	>	assertEquals(0, p.getCompletedTaskCount());
363	>	threadProceed.countDown();
364	>	threadDone.await();
365	>	long startTime = System.nanoTime();
366	>	while (p.getCompletedTaskCount() != 1) {
367	>	if (millisElapsedSince(startTime) > LONG_DELAY_MS)
368	>	fail("timed out");
369	>	Thread.yield();
370	>	}
371	>	} finally {
372	>	joinPool(p);
373	>	}
374	>	}
375	>
376	>	/**
377	>	* getCorePoolSize returns size given in constructor if not otherwise set
378	>	*/
379	>	public void testGetCorePoolSize() throws InterruptedException {
380	>	ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
381	>	assertEquals(1, p.getCorePoolSize());
382	>	joinPool(p);
383	>	}
384	>
385	>	/**
386	>	* getLargestPoolSize increases, but doesn't overestimate, when
387	>	* multiple threads active
388	>	*/
389	>	public void testGetLargestPoolSize() throws InterruptedException {
390	>	final int THREADS = 3;
391	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(THREADS);
392	>	final CountDownLatch threadsStarted = new CountDownLatch(THREADS);
393	>	final CountDownLatch done = new CountDownLatch(1);
394	>	try {
395	>	assertEquals(0, p.getLargestPoolSize());
396	>	for (int i = 0; i < THREADS; i++)
397	>	p.execute(new CheckedRunnable() {
398	>	public void realRun() throws InterruptedException {
399	>	threadsStarted.countDown();
400	>	done.await();
401	>	assertEquals(THREADS, p.getLargestPoolSize());
402	>	}});
403	>	assertTrue(threadsStarted.await(SMALL_DELAY_MS, MILLISECONDS));
404	>	assertEquals(THREADS, p.getLargestPoolSize());
405	>	} finally {
406	>	done.countDown();
407	>	joinPool(p);
408	>	assertEquals(THREADS, p.getLargestPoolSize());
409	>	}
410	>	}
411	>
412	>	/**
413	>	* getPoolSize increases, but doesn't overestimate, when threads
414	>	* become active
415	>	*/
416	>	public void testGetPoolSize() throws InterruptedException {
417	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
418	>	final CountDownLatch threadStarted = new CountDownLatch(1);
419	>	final CountDownLatch done = new CountDownLatch(1);
420	>	try {
421	>	assertEquals(0, p.getPoolSize());
422	>	p.execute(new CheckedRunnable() {
423	>	public void realRun() throws InterruptedException {
424	>	threadStarted.countDown();
425	>	assertEquals(1, p.getPoolSize());
426	>	done.await();
427	>	}});
428	>	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
429	>	assertEquals(1, p.getPoolSize());
430	>	} finally {
431	>	done.countDown();
432	>	joinPool(p);
433	>	}
434	>	}
435	>
436	>	/**
437	>	* getTaskCount increases, but doesn't overestimate, when tasks
438	>	* submitted
439	>	*/
440	>	public void testGetTaskCount() throws InterruptedException {
441	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
442	>	final CountDownLatch threadStarted = new CountDownLatch(1);
443	>	final CountDownLatch done = new CountDownLatch(1);
444	>	final int TASKS = 5;
445	>	try {
446	>	assertEquals(0, p.getTaskCount());
447	>	for (int i = 0; i < TASKS; i++)
448	>	p.execute(new CheckedRunnable() {
449	>	public void realRun() throws InterruptedException {
450	>	threadStarted.countDown();
451	>	done.await();
452	>	}});
453	>	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
454	>	assertEquals(TASKS, p.getTaskCount());
455	>	} finally {
456	>	done.countDown();
457	>	joinPool(p);
458	>	}
459	>	}
460	>
461	>	/**
462	>	* getThreadFactory returns factory in constructor if not set
463	>	*/
464	>	public void testGetThreadFactory() throws InterruptedException {
465	>	ThreadFactory tf = new SimpleThreadFactory();
466	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1, tf);
467	>	assertSame(tf, p.getThreadFactory());
468	>	joinPool(p);
469	>	}
470	>
471	>	/**
472	>	* setThreadFactory sets the thread factory returned by getThreadFactory
473	>	*/
474	>	public void testSetThreadFactory() throws InterruptedException {
475	>	ThreadFactory tf = new SimpleThreadFactory();
476	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
477	>	p.setThreadFactory(tf);
478	>	assertSame(tf, p.getThreadFactory());
479	>	joinPool(p);
480	>	}
481	>
482	>	/**
483	>	* setThreadFactory(null) throws NPE
484	>	*/
485	>	public void testSetThreadFactoryNull() throws InterruptedException {
486	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
487	>	try {
488	>	p.setThreadFactory(null);
489		shouldThrow();
490	<	} catch(RejectedExecutionException success){
491	<	}
492	<	joinPool(se);
490	>	} catch (NullPointerException success) {
491	>	} finally {
492	>	joinPool(p);
493	>	}
494		}
495
496		/**
497	<	*   getActiveCount gives correct values
497	>	* isShutdown is false before shutdown, true after
498		*/
499	<	public void testGetActiveCount() {
500	<	ScheduledExecutor p2 = new ScheduledExecutor(2);
501	<	assertEquals(0, p2.getActiveCount());
267	<	p2.execute(new SmallRunnable());
499	>	public void testIsShutdown() {
500	>
501	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
502		try {
503	<	Thread.sleep(SHORT_DELAY_MS);
504	<	} catch(Exception e){
505	<	unexpectedException();
503	>	assertFalse(p.isShutdown());
504	>	}
505	>	finally {
506	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
507		}
508	<	assertEquals(1, p2.getActiveCount());
274	<	joinPool(p2);
508	>	assertTrue(p.isShutdown());
509		}
510	<
510	>
511		/**
512	<	*   getCompleteTaskCount gives correct values
512	>	* isTerminated is false before termination, true after
513		*/
514	<	public void testGetCompletedTaskCount() {
515	<	ScheduledExecutor p2 = new ScheduledExecutor(2);
516	<	assertEquals(0, p2.getCompletedTaskCount());
517	<	p2.execute(new SmallRunnable());
514	>	public void testIsTerminated() throws InterruptedException {
515	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
516	>	final CountDownLatch threadStarted = new CountDownLatch(1);
517	>	final CountDownLatch done = new CountDownLatch(1);
518	>	assertFalse(p.isTerminated());
519		try {
520	<	Thread.sleep(MEDIUM_DELAY_MS);
521	<	} catch(Exception e){
522	<	unexpectedException();
520	>	p.execute(new CheckedRunnable() {
521	>	public void realRun() throws InterruptedException {
522	>	assertFalse(p.isTerminated());
523	>	threadStarted.countDown();
524	>	done.await();
525	>	}});
526	>	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
527	>	assertFalse(p.isTerminating());
528	>	done.countDown();
529	>	} finally {
530	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
531		}
532	<	assertEquals(1, p2.getCompletedTaskCount());
533	<	joinPool(p2);
532	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
533	>	assertTrue(p.isTerminated());
534		}
535	<
535	>
536		/**
537	<	*   getCorePoolSize gives correct values
537	>	* isTerminating is not true when running or when terminated
538		*/
539	<	public void testGetCorePoolSize() {
540	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
541	<	assertEquals(1, p1.getCorePoolSize());
542	<	joinPool(p1);
539	>	public void testIsTerminating() throws InterruptedException {
540	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
541	>	final CountDownLatch threadStarted = new CountDownLatch(1);
542	>	final CountDownLatch done = new CountDownLatch(1);
543	>	try {
544	>	assertFalse(p.isTerminating());
545	>	p.execute(new CheckedRunnable() {
546	>	public void realRun() throws InterruptedException {
547	>	assertFalse(p.isTerminating());
548	>	threadStarted.countDown();
549	>	done.await();
550	>	}});
551	>	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
552	>	assertFalse(p.isTerminating());
553	>	done.countDown();
554	>	} finally {
555	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
556	>	}
557	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
558	>	assertTrue(p.isTerminated());
559	>	assertFalse(p.isTerminating());
560		}
561	<
561	>
562		/**
563	<	*   getLargestPoolSize gives correct values
563	>	* getQueue returns the work queue, which contains queued tasks
564		*/
565	<	public void testGetLargestPoolSize() {
566	<	ScheduledExecutor p2 = new ScheduledExecutor(2);
567	<	assertEquals(0, p2.getLargestPoolSize());
568	<	p2.execute(new SmallRunnable());
309	<	p2.execute(new SmallRunnable());
565	>	public void testGetQueue() throws InterruptedException {
566	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
567	>	final CountDownLatch threadStarted = new CountDownLatch(1);
568	>	final CountDownLatch done = new CountDownLatch(1);
569		try {
570	<	Thread.sleep(SHORT_DELAY_MS);
571	<	} catch(Exception e){
572	<	unexpectedException();
570	>	ScheduledFuture[] tasks = new ScheduledFuture[5];
571	>	for (int i = 0; i < tasks.length; i++) {
572	>	Runnable r = new CheckedRunnable() {
573	>	public void realRun() throws InterruptedException {
574	>	threadStarted.countDown();
575	>	done.await();
576	>	}};
577	>	tasks[i] = p.schedule(r, 1, MILLISECONDS);
578	>	}
579	>	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
580	>	BlockingQueue<Runnable> q = p.getQueue();
581	>	assertTrue(q.contains(tasks[tasks.length - 1]));
582	>	assertFalse(q.contains(tasks[0]));
583	>	} finally {
584	>	done.countDown();
585	>	joinPool(p);
586		}
315	–	assertEquals(2, p2.getLargestPoolSize());
316	–	joinPool(p2);
587		}
588	<
588	>
589		/**
590	<	*   getPoolSize gives correct values
590	>	* remove(task) removes queued task, and fails to remove active task
591		*/
592	<	public void testGetPoolSize() {
593	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
594	<	assertEquals(0, p1.getPoolSize());
595	<	p1.execute(new SmallRunnable());
596	<	assertEquals(1, p1.getPoolSize());
597	<	joinPool(p1);
592	>	public void testRemove() throws InterruptedException {
593	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
594	>	ScheduledFuture[] tasks = new ScheduledFuture[5];
595	>	final CountDownLatch threadStarted = new CountDownLatch(1);
596	>	final CountDownLatch done = new CountDownLatch(1);
597	>	try {
598	>	for (int i = 0; i < tasks.length; i++) {
599	>	Runnable r = new CheckedRunnable() {
600	>	public void realRun() throws InterruptedException {
601	>	threadStarted.countDown();
602	>	done.await();
603	>	}};
604	>	tasks[i] = p.schedule(r, 1, MILLISECONDS);
605	>	}
606	>	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
607	>	BlockingQueue<Runnable> q = p.getQueue();
608	>	assertFalse(p.remove((Runnable)tasks[0]));
609	>	assertTrue(q.contains((Runnable)tasks[4]));
610	>	assertTrue(q.contains((Runnable)tasks[3]));
611	>	assertTrue(p.remove((Runnable)tasks[4]));
612	>	assertFalse(p.remove((Runnable)tasks[4]));
613	>	assertFalse(q.contains((Runnable)tasks[4]));
614	>	assertTrue(q.contains((Runnable)tasks[3]));
615	>	assertTrue(p.remove((Runnable)tasks[3]));
616	>	assertFalse(q.contains((Runnable)tasks[3]));
617	>	} finally {
618	>	done.countDown();
619	>	joinPool(p);
620	>	}
621		}
622	<
622	>
623		/**
624	<	*   getTaskCount gives correct values
624	>	* purge eventually removes cancelled tasks from the queue
625		*/
626	<	public void testGetTaskCount() {
627	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
628	<	assertEquals(0, p1.getTaskCount());
629	<	for(int i = 0; i < 5; i++)
630	<	p1.execute(new SmallRunnable());
626	>	public void testPurge() throws InterruptedException {
627	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
628	>	ScheduledFuture[] tasks = new ScheduledFuture[5];
629	>	for (int i = 0; i < tasks.length; i++)
630	>	tasks[i] = p.schedule(new SmallPossiblyInterruptedRunnable(),
631	>	LONG_DELAY_MS, MILLISECONDS);
632		try {
633	<	Thread.sleep(SHORT_DELAY_MS);
634	<	} catch(Exception e){
635	<	unexpectedException();
633	>	int max = tasks.length;
634	>	if (tasks[4].cancel(true)) --max;
635	>	if (tasks[3].cancel(true)) --max;
636	>	// There must eventually be an interference-free point at
637	>	// which purge will not fail. (At worst, when queue is empty.)
638	>	long startTime = System.nanoTime();
639	>	do {
640	>	p.purge();
641	>	long count = p.getTaskCount();
642	>	if (count == max)
643	>	return;
644	>	} while (millisElapsedSince(startTime) < MEDIUM_DELAY_MS);
645	>	fail("Purge failed to remove cancelled tasks");
646	>	} finally {
647	>	for (ScheduledFuture task : tasks)
648	>	task.cancel(true);
649	>	joinPool(p);
650		}
343	–	assertEquals(5, p1.getTaskCount());
344	–	joinPool(p1);
651		}
652	<
652	>
653		/**
654	<	*   isShutDown gives correct values
654	>	* shutdownNow returns a list containing tasks that were not run,
655	>	* and those tasks are drained from the queue
656		*/
657	<	public void testIsShutdown() {
658	<
659	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
657	>	public void testShutdownNow() {
658	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
659	>	for (int i = 0; i < 5; i++)
660	>	p.schedule(new SmallPossiblyInterruptedRunnable(),
661	>	LONG_DELAY_MS, MILLISECONDS);
662		try {
663	<	assertFalse(p1.isShutdown());
663	>	List<Runnable> l = p.shutdownNow();
664	>	assertTrue(p.isShutdown());
665	>	assertTrue(p.getQueue().isEmpty());
666	>	assertEquals(5, l.size());
667	>	} catch (SecurityException ok) {
668	>	// Allowed in case test doesn't have privs
669	>	} finally {
670	>	joinPool(p);
671	>	}
672	>	}
673	>
674	>	/**
675	>	* In default setting, shutdown cancels periodic but not delayed
676	>	* tasks at shutdown
677	>	*/
678	>	public void testShutdown1() throws InterruptedException {
679	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
680	>	assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
681	>	assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
682	>
683	>	ScheduledFuture[] tasks = new ScheduledFuture[5];
684	>	for (int i = 0; i < tasks.length; i++)
685	>	tasks[i] = p.schedule(new NoOpRunnable(),
686	>	SHORT_DELAY_MS, MILLISECONDS);
687	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
688	>	BlockingQueue<Runnable> q = p.getQueue();
689	>	for (ScheduledFuture task : tasks) {
690	>	assertFalse(task.isDone());
691	>	assertFalse(task.isCancelled());
692	>	assertTrue(q.contains(task));
693	>	}
694	>	assertTrue(p.isShutdown());
695	>	assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS));
696	>	assertTrue(p.isTerminated());
697	>	for (ScheduledFuture task : tasks) {
698	>	assertTrue(task.isDone());
699	>	assertFalse(task.isCancelled());
700	>	}
701	>	}
702	>
703	>	/**
704	>	* If setExecuteExistingDelayedTasksAfterShutdownPolicy is false,
705	>	* delayed tasks are cancelled at shutdown
706	>	*/
707	>	public void testShutdown2() throws InterruptedException {
708	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
709	>	p.setExecuteExistingDelayedTasksAfterShutdownPolicy(false);
710	>	assertFalse(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
711	>	assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
712	>	ScheduledFuture[] tasks = new ScheduledFuture[5];
713	>	for (int i = 0; i < tasks.length; i++)
714	>	tasks[i] = p.schedule(new NoOpRunnable(),
715	>	SHORT_DELAY_MS, MILLISECONDS);
716	>	BlockingQueue q = p.getQueue();
717	>	assertEquals(tasks.length, q.size());
718	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
719	>	assertTrue(p.isShutdown());
720	>	assertTrue(q.isEmpty());
721	>	assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS));
722	>	assertTrue(p.isTerminated());
723	>	for (ScheduledFuture task : tasks) {
724	>	assertTrue(task.isDone());
725	>	assertTrue(task.isCancelled());
726	>	}
727	>	}
728	>
729	>	/**
730	>	* If setContinueExistingPeriodicTasksAfterShutdownPolicy is set false,
731	>	* periodic tasks are cancelled at shutdown
732	>	*/
733	>	public void testShutdown3() throws InterruptedException {
734	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
735	>	assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
736	>	assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
737	>	p.setContinueExistingPeriodicTasksAfterShutdownPolicy(false);
738	>	assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
739	>	assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
740	>	long initialDelay = LONG_DELAY_MS;
741	>	ScheduledFuture task =
742	>	p.scheduleAtFixedRate(new NoOpRunnable(), initialDelay,
743	>	5, MILLISECONDS);
744	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
745	>	assertTrue(p.isShutdown());
746	>	assertTrue(p.getQueue().isEmpty());
747	>	assertTrue(task.isDone());
748	>	assertTrue(task.isCancelled());
749	>	joinPool(p);
750	>	}
751	>
752	>	/**
753	>	* if setContinueExistingPeriodicTasksAfterShutdownPolicy is true,
754	>	* periodic tasks are not cancelled at shutdown
755	>	*/
756	>	public void testShutdown4() throws InterruptedException {
757	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
758	>	final CountDownLatch counter = new CountDownLatch(2);
759	>	try {
760	>	p.setContinueExistingPeriodicTasksAfterShutdownPolicy(true);
761	>	assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
762	>	assertTrue(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
763	>	final Runnable r = new CheckedRunnable() {
764	>	public void realRun() {
765	>	counter.countDown();
766	>	}};
767	>	ScheduledFuture task =
768	>	p.scheduleAtFixedRate(r, 1, 1, MILLISECONDS);
769	>	assertFalse(task.isDone());
770	>	assertFalse(task.isCancelled());
771	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
772	>	assertFalse(task.isCancelled());
773	>	assertFalse(p.isTerminated());
774	>	assertTrue(p.isShutdown());
775	>	assertTrue(counter.await(SMALL_DELAY_MS, MILLISECONDS));
776	>	assertFalse(task.isCancelled());
777	>	assertTrue(task.cancel(false));
778	>	assertTrue(task.isDone());
779	>	assertTrue(task.isCancelled());
780	>	assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS));
781	>	assertTrue(p.isTerminated());
782		}
783		finally {
784	<	p1.shutdown();
784	>	joinPool(p);
785		}
359	–	assertTrue(p1.isShutdown());
786		}
787
362	–
788		/**
789	<	*  isTerminated gives correct values
789	>	* completed submit of callable returns result
790		*/
791	<	public void testIsTerminated() {
792	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
791	>	public void testSubmitCallable() throws Exception {
792	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
793		try {
794	<	p1.execute(new SmallRunnable());
794	>	Future<String> future = e.submit(new StringTask());
795	>	String result = future.get();
796	>	assertSame(TEST_STRING, result);
797		} finally {
798	<	p1.shutdown();
798	>	joinPool(e);
799		}
800	+	}
801	+
802	+	/**
803	+	* completed submit of runnable returns successfully
804	+	*/
805	+	public void testSubmitRunnable() throws Exception {
806	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
807		try {
808	<	assertTrue(p1.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
809	<	assertTrue(p1.isTerminated());
810	<	} catch(Exception e){
811	<	unexpectedException();
812	<	}
808	>	Future<?> future = e.submit(new NoOpRunnable());
809	>	future.get();
810	>	assertTrue(future.isDone());
811	>	} finally {
812	>	joinPool(e);
813	>	}
814		}
815
816		/**
817	<	*  isTerminating gives correct values
817	>	* completed submit of (runnable, result) returns result
818		*/
819	<	public void testIsTerminating() {
820	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
386	<	assertFalse(p1.isTerminating());
819	>	public void testSubmitRunnable2() throws Exception {
820	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
821		try {
822	<	p1.execute(new SmallRunnable());
823	<	assertFalse(p1.isTerminating());
822	>	Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING);
823	>	String result = future.get();
824	>	assertSame(TEST_STRING, result);
825		} finally {
826	<	p1.shutdown();
826	>	joinPool(e);
827		}
828	+	}
829	+
830	+	/**
831	+	* invokeAny(null) throws NPE
832	+	*/
833	+	public void testInvokeAny1() throws Exception {
834	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
835		try {
836	<	assertTrue(p1.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
837	<	assertTrue(p1.isTerminated());
838	<	assertFalse(p1.isTerminating());
839	<	} catch(Exception e){
840	<	unexpectedException();
841	<	}
836	>	e.invokeAny(null);
837	>	shouldThrow();
838	>	} catch (NullPointerException success) {
839	>	} finally {
840	>	joinPool(e);
841	>	}
842		}
843
844		/**
845	<	*   that purge correctly removes cancelled tasks
404	<	*  from the queue
845	>	* invokeAny(empty collection) throws IAE
846		*/
847	<	public void testPurge() {
848	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
849	<	ScheduledCancellable[] tasks = new ScheduledCancellable[5];
850	<	for(int i = 0; i < 5; i++){
851	<	tasks[i] = p1.schedule(new SmallRunnable(), 1, TimeUnit.MILLISECONDS);
847	>	public void testInvokeAny2() throws Exception {
848	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
849	>	try {
850	>	e.invokeAny(new ArrayList<Callable<String>>());
851	>	shouldThrow();
852	>	} catch (IllegalArgumentException success) {
853	>	} finally {
854	>	joinPool(e);
855		}
412	–	int max = 5;
413	–	if (tasks[4].cancel(true)) --max;
414	–	if (tasks[3].cancel(true)) --max;
415	–	p1.purge();
416	–	long count = p1.getTaskCount();
417	–	assertTrue(count > 0 && count <= max);
418	–	joinPool(p1);
856		}
857
858		/**
859	<	*   shutDownNow returns a list
423	<	*  containing the correct number of elements
859	>	* invokeAny(c) throws NPE if c has null elements
860		*/
861	<	public void testShutDownNow() {
862	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
863	<	for(int i = 0; i < 5; i++)
864	<	p1.schedule(new SmallRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
865	<	List l = p1.shutdownNow();
866	<	assertTrue(p1.isShutdown());
867	<	assertTrue(l.size() > 0 && l.size() <= 5);
868	<	joinPool(p1);
861	>	public void testInvokeAny3() throws Exception {
862	>	CountDownLatch latch = new CountDownLatch(1);
863	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
864	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
865	>	l.add(latchAwaitingStringTask(latch));
866	>	l.add(null);
867	>	try {
868	>	e.invokeAny(l);
869	>	shouldThrow();
870	>	} catch (NullPointerException success) {
871	>	} finally {
872	>	latch.countDown();
873	>	joinPool(e);
874	>	}
875		}
876
877		/**
878	<	*
878	>	* invokeAny(c) throws ExecutionException if no task completes
879		*/
880	<	public void testShutDown1() {
880	>	public void testInvokeAny4() throws Exception {
881	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
882	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
883	>	l.add(new NPETask());
884		try {
885	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
886	<	assertTrue(p1.getExecuteExistingDelayedTasksAfterShutdownPolicy());
887	<	assertFalse(p1.getContinueExistingPeriodicTasksAfterShutdownPolicy());
885	>	e.invokeAny(l);
886	>	shouldThrow();
887	>	} catch (ExecutionException success) {
888	>	assertTrue(success.getCause() instanceof NullPointerException);
889	>	} finally {
890	>	joinPool(e);
891	>	}
892	>	}
893
894	<	ScheduledCancellable[] tasks = new ScheduledCancellable[5];
895	<	for(int i = 0; i < 5; i++)
896	<	tasks[i] = p1.schedule(new NoOpRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
897	<	p1.shutdown();
898	<	BlockingQueue q = p1.getQueue();
899	<	for (Iterator it = q.iterator(); it.hasNext();) {
900	<	ScheduledCancellable t = (ScheduledCancellable)it.next();
901	<	assertFalse(t.isCancelled());
902	<	}
903	<	assertTrue(p1.isShutdown());
904	<	Thread.sleep(SMALL_DELAY_MS);
905	<	for (int i = 0; i < 5; ++i) {
906	<	assertTrue(tasks[i].isDone());
457	<	assertFalse(tasks[i].isCancelled());
458	<	}
459	<
894	>	/**
895	>	* invokeAny(c) returns result of some task
896	>	*/
897	>	public void testInvokeAny5() throws Exception {
898	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
899	>	try {
900	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
901	>	l.add(new StringTask());
902	>	l.add(new StringTask());
903	>	String result = e.invokeAny(l);
904	>	assertSame(TEST_STRING, result);
905	>	} finally {
906	>	joinPool(e);
907		}
908	<	catch(Exception ex) {
909	<	unexpectedException();
908	>	}
909	>
910	>	/**
911	>	* invokeAll(null) throws NPE
912	>	*/
913	>	public void testInvokeAll1() throws Exception {
914	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
915	>	try {
916	>	e.invokeAll(null);
917	>	shouldThrow();
918	>	} catch (NullPointerException success) {
919	>	} finally {
920	>	joinPool(e);
921		}
922		}
923
924	+	/**
925	+	* invokeAll(empty collection) returns empty collection
926	+	*/
927	+	public void testInvokeAll2() throws Exception {
928	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
929	+	try {
930	+	List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>());
931	+	assertTrue(r.isEmpty());
932	+	} finally {
933	+	joinPool(e);
934	+	}
935	+	}
936
937		/**
938	<	*
938	>	* invokeAll(c) throws NPE if c has null elements
939		*/
940	<	public void testShutDown2() {
940	>	public void testInvokeAll3() throws Exception {
941	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
942	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
943	>	l.add(new StringTask());
944	>	l.add(null);
945		try {
946	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
947	<	p1.setExecuteExistingDelayedTasksAfterShutdownPolicy(false);
948	<	ScheduledCancellable[] tasks = new ScheduledCancellable[5];
949	<	for(int i = 0; i < 5; i++)
950	<	tasks[i] = p1.schedule(new NoOpRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
477	<	p1.shutdown();
478	<	assertTrue(p1.isShutdown());
479	<	BlockingQueue q = p1.getQueue();
480	<	assertTrue(q.isEmpty());
481	<	Thread.sleep(SMALL_DELAY_MS);
482	<	assertTrue(p1.isTerminated());
946	>	e.invokeAll(l);
947	>	shouldThrow();
948	>	} catch (NullPointerException success) {
949	>	} finally {
950	>	joinPool(e);
951		}
952	<	catch(Exception ex) {
953	<	unexpectedException();
952	>	}
953	>
954	>	/**
955	>	* get of invokeAll(c) throws exception on failed task
956	>	*/
957	>	public void testInvokeAll4() throws Exception {
958	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
959	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
960	>	l.add(new NPETask());
961	>	List<Future<String>> futures = e.invokeAll(l);
962	>	assertEquals(1, futures.size());
963	>	try {
964	>	futures.get(0).get();
965	>	shouldThrow();
966	>	} catch (ExecutionException success) {
967	>	assertTrue(success.getCause() instanceof NullPointerException);
968	>	} finally {
969	>	joinPool(e);
970		}
971		}
972
973	+	/**
974	+	* invokeAll(c) returns results of all completed tasks
975	+	*/
976	+	public void testInvokeAll5() throws Exception {
977	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
978	+	try {
979	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
980	+	l.add(new StringTask());
981	+	l.add(new StringTask());
982	+	List<Future<String>> futures = e.invokeAll(l);
983	+	assertEquals(2, futures.size());
984	+	for (Future<String> future : futures)
985	+	assertSame(TEST_STRING, future.get());
986	+	} finally {
987	+	joinPool(e);
988	+	}
989	+	}
990
991		/**
992	<	*
992	>	* timed invokeAny(null) throws NPE
993		*/
994	<	public void testShutDown3() {
994	>	public void testTimedInvokeAny1() throws Exception {
995	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
996		try {
997	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
998	<	p1.setContinueExistingPeriodicTasksAfterShutdownPolicy(false);
999	<	ScheduledCancellable task =
1000	<	p1.scheduleAtFixedRate(new NoOpRunnable(), 5, 5, TimeUnit.MILLISECONDS);
1001	<	p1.shutdown();
500	<	assertTrue(p1.isShutdown());
501	<	BlockingQueue q = p1.getQueue();
502	<	assertTrue(q.isEmpty());
503	<	Thread.sleep(SHORT_DELAY_MS);
504	<	assertTrue(p1.isTerminated());
997	>	e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS);
998	>	shouldThrow();
999	>	} catch (NullPointerException success) {
1000	>	} finally {
1001	>	joinPool(e);
1002		}
1003	<	catch(Exception ex) {
1004	<	unexpectedException();
1003	>	}
1004	>
1005	>	/**
1006	>	* timed invokeAny(,,null) throws NPE
1007	>	*/
1008	>	public void testTimedInvokeAnyNullTimeUnit() throws Exception {
1009	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1010	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1011	>	l.add(new StringTask());
1012	>	try {
1013	>	e.invokeAny(l, MEDIUM_DELAY_MS, null);
1014	>	shouldThrow();
1015	>	} catch (NullPointerException success) {
1016	>	} finally {
1017	>	joinPool(e);
1018		}
1019		}
1020
1021		/**
1022	<	*
1022	>	* timed invokeAny(empty collection) throws IAE
1023		*/
1024	<	public void testShutDown4() {
1025	<	ScheduledExecutor p1 = new ScheduledExecutor(1);
1024	>	public void testTimedInvokeAny2() throws Exception {
1025	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1026		try {
1027	<	p1.setContinueExistingPeriodicTasksAfterShutdownPolicy(true);
1028	<	ScheduledCancellable task =
1029	<	p1.scheduleAtFixedRate(new NoOpRunnable(), 5, 5, TimeUnit.MILLISECONDS);
1030	<	assertFalse(task.isCancelled());
1031	<	p1.shutdown();
522	<	assertFalse(task.isCancelled());
523	<	assertFalse(p1.isTerminated());
524	<	assertTrue(p1.isShutdown());
525	<	Thread.sleep(SHORT_DELAY_MS);
526	<	assertFalse(task.isCancelled());
527	<	task.cancel(true);
528	<	assertTrue(task.isCancelled());
529	<	Thread.sleep(SHORT_DELAY_MS);
530	<	assertTrue(p1.isTerminated());
1027	>	e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
1028	>	shouldThrow();
1029	>	} catch (IllegalArgumentException success) {
1030	>	} finally {
1031	>	joinPool(e);
1032		}
1033	<	catch(Exception ex) {
1034	<	unexpectedException();
1033	>	}
1034	>
1035	>	/**
1036	>	* timed invokeAny(c) throws NPE if c has null elements
1037	>	*/
1038	>	public void testTimedInvokeAny3() throws Exception {
1039	>	CountDownLatch latch = new CountDownLatch(1);
1040	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1041	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1042	>	l.add(latchAwaitingStringTask(latch));
1043	>	l.add(null);
1044	>	try {
1045	>	e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1046	>	shouldThrow();
1047	>	} catch (NullPointerException success) {
1048	>	} finally {
1049	>	latch.countDown();
1050	>	joinPool(e);
1051		}
1052	<	finally {
1053	<	p1.shutdownNow();
1052	>	}
1053	>
1054	>	/**
1055	>	* timed invokeAny(c) throws ExecutionException if no task completes
1056	>	*/
1057	>	public void testTimedInvokeAny4() throws Exception {
1058	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1059	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1060	>	l.add(new NPETask());
1061	>	try {
1062	>	e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1063	>	shouldThrow();
1064	>	} catch (ExecutionException success) {
1065	>	assertTrue(success.getCause() instanceof NullPointerException);
1066	>	} finally {
1067	>	joinPool(e);
1068	>	}
1069	>	}
1070	>
1071	>	/**
1072	>	* timed invokeAny(c) returns result of some task
1073	>	*/
1074	>	public void testTimedInvokeAny5() throws Exception {
1075	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1076	>	try {
1077	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1078	>	l.add(new StringTask());
1079	>	l.add(new StringTask());
1080	>	String result = e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1081	>	assertSame(TEST_STRING, result);
1082	>	} finally {
1083	>	joinPool(e);
1084	>	}
1085	>	}
1086	>
1087	>	/**
1088	>	* timed invokeAll(null) throws NPE
1089	>	*/
1090	>	public void testTimedInvokeAll1() throws Exception {
1091	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1092	>	try {
1093	>	e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS);
1094	>	shouldThrow();
1095	>	} catch (NullPointerException success) {
1096	>	} finally {
1097	>	joinPool(e);
1098	>	}
1099	>	}
1100	>
1101	>	/**
1102	>	* timed invokeAll(,,null) throws NPE
1103	>	*/
1104	>	public void testTimedInvokeAllNullTimeUnit() throws Exception {
1105	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1106	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1107	>	l.add(new StringTask());
1108	>	try {
1109	>	e.invokeAll(l, MEDIUM_DELAY_MS, null);
1110	>	shouldThrow();
1111	>	} catch (NullPointerException success) {
1112	>	} finally {
1113	>	joinPool(e);
1114	>	}
1115	>	}
1116	>
1117	>	/**
1118	>	* timed invokeAll(empty collection) returns empty collection
1119	>	*/
1120	>	public void testTimedInvokeAll2() throws Exception {
1121	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1122	>	try {
1123	>	List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
1124	>	assertTrue(r.isEmpty());
1125	>	} finally {
1126	>	joinPool(e);
1127	>	}
1128	>	}
1129	>
1130	>	/**
1131	>	* timed invokeAll(c) throws NPE if c has null elements
1132	>	*/
1133	>	public void testTimedInvokeAll3() throws Exception {
1134	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1135	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1136	>	l.add(new StringTask());
1137	>	l.add(null);
1138	>	try {
1139	>	e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1140	>	shouldThrow();
1141	>	} catch (NullPointerException success) {
1142	>	} finally {
1143	>	joinPool(e);
1144	>	}
1145	>	}
1146	>
1147	>	/**
1148	>	* get of element of invokeAll(c) throws exception on failed task
1149	>	*/
1150	>	public void testTimedInvokeAll4() throws Exception {
1151	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1152	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1153	>	l.add(new NPETask());
1154	>	List<Future<String>> futures =
1155	>	e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1156	>	assertEquals(1, futures.size());
1157	>	try {
1158	>	futures.get(0).get();
1159	>	shouldThrow();
1160	>	} catch (ExecutionException success) {
1161	>	assertTrue(success.getCause() instanceof NullPointerException);
1162	>	} finally {
1163	>	joinPool(e);
1164	>	}
1165	>	}
1166	>
1167	>	/**
1168	>	* timed invokeAll(c) returns results of all completed tasks
1169	>	*/
1170	>	public void testTimedInvokeAll5() throws Exception {
1171	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1172	>	try {
1173	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1174	>	l.add(new StringTask());
1175	>	l.add(new StringTask());
1176	>	List<Future<String>> futures =
1177	>	e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1178	>	assertEquals(2, futures.size());
1179	>	for (Future<String> future : futures)
1180	>	assertSame(TEST_STRING, future.get());
1181	>	} finally {
1182	>	joinPool(e);
1183	>	}
1184	>	}
1185	>
1186	>	/**
1187	>	* timed invokeAll(c) cancels tasks not completed by timeout
1188	>	*/
1189	>	public void testTimedInvokeAll6() throws Exception {
1190	>	ExecutorService e = new ScheduledThreadPoolExecutor(2);
1191	>	try {
1192	>	for (long timeout = timeoutMillis();;) {
1193	>	List<Callable<String>> tasks = new ArrayList<>();
1194	>	tasks.add(new StringTask("0"));
1195	>	tasks.add(Executors.callable(new LongPossiblyInterruptedRunnable(), TEST_STRING));
1196	>	tasks.add(new StringTask("2"));
1197	>	long startTime = System.nanoTime();
1198	>	List<Future<String>> futures =
1199	>	e.invokeAll(tasks, timeout, MILLISECONDS);
1200	>	assertEquals(tasks.size(), futures.size());
1201	>	assertTrue(millisElapsedSince(startTime) >= timeout);
1202	>	for (Future future : futures)
1203	>	assertTrue(future.isDone());
1204	>	assertTrue(futures.get(1).isCancelled());
1205	>	try {
1206	>	assertEquals("0", futures.get(0).get());
1207	>	assertEquals("2", futures.get(2).get());
1208	>	break;
1209	>	} catch (CancellationException retryWithLongerTimeout) {
1210	>	timeout *= 2;
1211	>	if (timeout >= LONG_DELAY_MS / 2)
1212	>	fail("expected exactly one task to be cancelled");
1213	>	}
1214	>	}
1215	>	} finally {
1216	>	joinPool(e);
1217		}
1218		}
1219

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