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

Comparing jsr166/src/test/tck/ReentrantLockTest.java (file contents):
Revision 1.18 by dl, Sat Jan 10 01:41:59 2004 UTC vs.
Revision 1.41 by jsr166, Sat May 7 02:51:33 2011 UTC

#	Line 1 | Line 1
1		/*
2		* Written by Doug Lea with assistance from members of JCP JSR-166
3		* Expert Group and released to the public domain, as explained at
4	<	* http://creativecommons.org/licenses/publicdomain
5	<	* Other contributors include Andrew Wright, Jeffrey Hayes,
6	<	* Pat Fisher, Mike Judd.
4	>	* http://creativecommons.org/publicdomain/zero/1.0/
5	>	* Other contributors include Andrew Wright, Jeffrey Hayes,
6	>	* Pat Fisher, Mike Judd.
7		*/
8
9		import junit.framework.*;
10		import java.util.concurrent.locks.*;
11		import java.util.concurrent.*;
12	+	import static java.util.concurrent.TimeUnit.MILLISECONDS;
13		import java.util.*;
14		import java.io.*;
15
16		public class ReentrantLockTest extends JSR166TestCase {
17		public static void main(String[] args) {
18	<	junit.textui.TestRunner.run (suite());
18	>	junit.textui.TestRunner.run(suite());
19		}
20		public static Test suite() {
21	<	return new TestSuite(ReentrantLockTest.class);
21	>	return new TestSuite(ReentrantLockTest.class);
22		}
23
24		/**
25		* A runnable calling lockInterruptibly
26		*/
27	<	class InterruptibleLockRunnable implements Runnable {
27	>	class InterruptibleLockRunnable extends CheckedRunnable {
28		final ReentrantLock lock;
29		InterruptibleLockRunnable(ReentrantLock l) { lock = l; }
30	<	public void run() {
31	<	try {
31	<	lock.lockInterruptibly();
32	<	} catch(InterruptedException success){}
30	>	public void realRun() throws InterruptedException {
31	>	lock.lockInterruptibly();
32		}
33		}
34
#	Line 38 | Line 37 | public class ReentrantLockTest extends J
37		* A runnable calling lockInterruptibly that expects to be
38		* interrupted
39		*/
40	<	class InterruptedLockRunnable implements Runnable {
40	>	class InterruptedLockRunnable extends CheckedInterruptedRunnable {
41		final ReentrantLock lock;
42		InterruptedLockRunnable(ReentrantLock l) { lock = l; }
43	<	public void run() {
44	<	try {
46	<	lock.lockInterruptibly();
47	<	threadShouldThrow();
48	<	} catch(InterruptedException success){}
43	>	public void realRun() throws InterruptedException {
44	>	lock.lockInterruptibly();
45		}
46		}
47
#	Line 54 | Line 50 | public class ReentrantLockTest extends J
50		*/
51		static class PublicReentrantLock extends ReentrantLock {
52		PublicReentrantLock() { super(); }
53	<	public Collection<Thread> getQueuedThreads() {
54	<	return super.getQueuedThreads();
53	>	public Collection<Thread> getQueuedThreads() {
54	>	return super.getQueuedThreads();
55		}
56	<	public Collection<Thread> getWaitingThreads(Condition c) {
57	<	return super.getWaitingThreads(c);
56	>	public Collection<Thread> getWaitingThreads(Condition c) {
57	>	return super.getWaitingThreads(c);
58		}
63	–
64	–
59		}
60
61		/**
62		* Constructor sets given fairness
63		*/
64	<	public void testConstructor() {
65	<	ReentrantLock rl = new ReentrantLock();
66	<	assertFalse(rl.isFair());
67	<	ReentrantLock r2 = new ReentrantLock(true);
74	<	assertTrue(r2.isFair());
64	>	public void testConstructor() {
65	>	assertFalse(new ReentrantLock().isFair());
66	>	assertFalse(new ReentrantLock(false).isFair());
67	>	assertTrue(new ReentrantLock(true).isFair());
68		}
69
70		/**
71		* locking an unlocked lock succeeds
72		*/
73	<	public void testLock() {
74	<	ReentrantLock rl = new ReentrantLock();
73	>	public void testLock() {
74	>	ReentrantLock rl = new ReentrantLock();
75		rl.lock();
76		assertTrue(rl.isLocked());
77		rl.unlock();
78	+	assertFalse(rl.isLocked());
79		}
80
81		/**
82		* locking an unlocked fair lock succeeds
83		*/
84	<	public void testFairLock() {
85	<	ReentrantLock rl = new ReentrantLock(true);
84	>	public void testFairLock() {
85	>	ReentrantLock rl = new ReentrantLock(true);
86		rl.lock();
87		assertTrue(rl.isLocked());
88		rl.unlock();
#	Line 97 | Line 91 | public class ReentrantLockTest extends J
91		/**
92		* Unlocking an unlocked lock throws IllegalMonitorStateException
93		*/
94	<	public void testUnlock_IllegalMonitorStateException() {
95	<	ReentrantLock rl = new ReentrantLock();
96	<	try {
97	<	rl.unlock();
98	<	shouldThrow();
99	<
106	<	} catch(IllegalMonitorStateException success){}
94	>	public void testUnlock_IllegalMonitorStateException() {
95	>	ReentrantLock rl = new ReentrantLock();
96	>	try {
97	>	rl.unlock();
98	>	shouldThrow();
99	>	} catch (IllegalMonitorStateException success) {}
100		}
101
102		/**
103		* tryLock on an unlocked lock succeeds
104		*/
105	<	public void testTryLock() {
106	<	ReentrantLock rl = new ReentrantLock();
105	>	public void testTryLock() {
106	>	ReentrantLock rl = new ReentrantLock();
107		assertTrue(rl.tryLock());
108		assertTrue(rl.isLocked());
109		rl.unlock();
#	Line 120 | Line 113 | public class ReentrantLockTest extends J
113		/**
114		* hasQueuedThreads reports whether there are waiting threads
115		*/
116	<	public void testhasQueuedThreads() {
117	<	final ReentrantLock lock = new ReentrantLock();
116	>	public void testhasQueuedThreads() throws InterruptedException {
117	>	final ReentrantLock lock = new ReentrantLock();
118		Thread t1 = new Thread(new InterruptedLockRunnable(lock));
119		Thread t2 = new Thread(new InterruptibleLockRunnable(lock));
120	<	try {
121	<	assertFalse(lock.hasQueuedThreads());
122	<	lock.lock();
123	<	t1.start();
124	<	Thread.sleep(SHORT_DELAY_MS);
125	<	assertTrue(lock.hasQueuedThreads());
126	<	t2.start();
127	<	Thread.sleep(SHORT_DELAY_MS);
128	<	assertTrue(lock.hasQueuedThreads());
129	<	t1.interrupt();
130	<	Thread.sleep(SHORT_DELAY_MS);
131	<	assertTrue(lock.hasQueuedThreads());
132	<	lock.unlock();
133	<	Thread.sleep(SHORT_DELAY_MS);
134	<	assertFalse(lock.hasQueuedThreads());
135	<	t1.join();
136	<	t2.join();
144	<	} catch(Exception e){
145	<	unexpectedException();
146	<	}
147	<	}
120	>	assertFalse(lock.hasQueuedThreads());
121	>	lock.lock();
122	>	t1.start();
123	>	delay(SHORT_DELAY_MS);
124	>	assertTrue(lock.hasQueuedThreads());
125	>	t2.start();
126	>	delay(SHORT_DELAY_MS);
127	>	assertTrue(lock.hasQueuedThreads());
128	>	t1.interrupt();
129	>	delay(SHORT_DELAY_MS);
130	>	assertTrue(lock.hasQueuedThreads());
131	>	lock.unlock();
132	>	delay(SHORT_DELAY_MS);
133	>	assertFalse(lock.hasQueuedThreads());
134	>	t1.join();
135	>	t2.join();
136	>	}
137
138		/**
139		* getQueueLength reports number of waiting threads
140		*/
141	<	public void testGetQueueLength() {
142	<	final ReentrantLock lock = new ReentrantLock();
141	>	public void testGetQueueLength() throws InterruptedException {
142	>	final ReentrantLock lock = new ReentrantLock();
143		Thread t1 = new Thread(new InterruptedLockRunnable(lock));
144		Thread t2 = new Thread(new InterruptibleLockRunnable(lock));
145	<	try {
146	<	assertEquals(0, lock.getQueueLength());
147	<	lock.lock();
148	<	t1.start();
149	<	Thread.sleep(SHORT_DELAY_MS);
150	<	assertEquals(1, lock.getQueueLength());
151	<	t2.start();
152	<	Thread.sleep(SHORT_DELAY_MS);
153	<	assertEquals(2, lock.getQueueLength());
154	<	t1.interrupt();
155	<	Thread.sleep(SHORT_DELAY_MS);
156	<	assertEquals(1, lock.getQueueLength());
157	<	lock.unlock();
158	<	Thread.sleep(SHORT_DELAY_MS);
159	<	assertEquals(0, lock.getQueueLength());
160	<	t1.join();
161	<	t2.join();
173	<	} catch(Exception e){
174	<	unexpectedException();
175	<	}
176	<	}
145	>	assertEquals(0, lock.getQueueLength());
146	>	lock.lock();
147	>	t1.start();
148	>	delay(SHORT_DELAY_MS);
149	>	assertEquals(1, lock.getQueueLength());
150	>	t2.start();
151	>	delay(SHORT_DELAY_MS);
152	>	assertEquals(2, lock.getQueueLength());
153	>	t1.interrupt();
154	>	delay(SHORT_DELAY_MS);
155	>	assertEquals(1, lock.getQueueLength());
156	>	lock.unlock();
157	>	delay(SHORT_DELAY_MS);
158	>	assertEquals(0, lock.getQueueLength());
159	>	t1.join();
160	>	t2.join();
161	>	}
162
163		/**
164		* getQueueLength reports number of waiting threads
165		*/
166	<	public void testGetQueueLength_fair() {
167	<	final ReentrantLock lock = new ReentrantLock(true);
166	>	public void testGetQueueLength_fair() throws InterruptedException {
167	>	final ReentrantLock lock = new ReentrantLock(true);
168		Thread t1 = new Thread(new InterruptedLockRunnable(lock));
169		Thread t2 = new Thread(new InterruptibleLockRunnable(lock));
170	<	try {
171	<	assertEquals(0, lock.getQueueLength());
172	<	lock.lock();
173	<	t1.start();
174	<	Thread.sleep(SHORT_DELAY_MS);
175	<	assertEquals(1, lock.getQueueLength());
176	<	t2.start();
177	<	Thread.sleep(SHORT_DELAY_MS);
178	<	assertEquals(2, lock.getQueueLength());
179	<	t1.interrupt();
180	<	Thread.sleep(SHORT_DELAY_MS);
181	<	assertEquals(1, lock.getQueueLength());
182	<	lock.unlock();
183	<	Thread.sleep(SHORT_DELAY_MS);
184	<	assertEquals(0, lock.getQueueLength());
185	<	t1.join();
186	<	t2.join();
187	<	} catch(Exception e){
188	<	unexpectedException();
189	<	}
190	<	}
170	>	assertEquals(0, lock.getQueueLength());
171	>	lock.lock();
172	>	t1.start();
173	>	delay(SHORT_DELAY_MS);
174	>	assertEquals(1, lock.getQueueLength());
175	>	t2.start();
176	>	delay(SHORT_DELAY_MS);
177	>	assertEquals(2, lock.getQueueLength());
178	>	t1.interrupt();
179	>	delay(SHORT_DELAY_MS);
180	>	assertEquals(1, lock.getQueueLength());
181	>	lock.unlock();
182	>	delay(SHORT_DELAY_MS);
183	>	assertEquals(0, lock.getQueueLength());
184	>	t1.join();
185	>	t2.join();
186	>	}
187	>
188	>	/**
189	>	* hasQueuedThread(null) throws NPE
190	>	*/
191	>	public void testHasQueuedThreadNPE() {
192	>	final ReentrantLock sync = new ReentrantLock();
193	>	try {
194	>	sync.hasQueuedThread(null);
195	>	shouldThrow();
196	>	} catch (NullPointerException success) {}
197	>	}
198	>
199	>	/**
200	>	* hasQueuedThread reports whether a thread is queued.
201	>	*/
202	>	public void testHasQueuedThread() throws InterruptedException {
203	>	final ReentrantLock sync = new ReentrantLock();
204	>	Thread t1 = new Thread(new InterruptedLockRunnable(sync));
205	>	Thread t2 = new Thread(new InterruptibleLockRunnable(sync));
206	>	assertFalse(sync.hasQueuedThread(t1));
207	>	assertFalse(sync.hasQueuedThread(t2));
208	>	sync.lock();
209	>	t1.start();
210	>	delay(SHORT_DELAY_MS);
211	>	assertTrue(sync.hasQueuedThread(t1));
212	>	t2.start();
213	>	delay(SHORT_DELAY_MS);
214	>	assertTrue(sync.hasQueuedThread(t1));
215	>	assertTrue(sync.hasQueuedThread(t2));
216	>	t1.interrupt();
217	>	delay(SHORT_DELAY_MS);
218	>	assertFalse(sync.hasQueuedThread(t1));
219	>	assertTrue(sync.hasQueuedThread(t2));
220	>	sync.unlock();
221	>	delay(SHORT_DELAY_MS);
222	>	assertFalse(sync.hasQueuedThread(t1));
223	>	delay(SHORT_DELAY_MS);
224	>	assertFalse(sync.hasQueuedThread(t2));
225	>	t1.join();
226	>	t2.join();
227	>	}
228	>
229
230		/**
231		* getQueuedThreads includes waiting threads
232		*/
233	<	public void testGetQueuedThreads() {
234	<	final PublicReentrantLock lock = new PublicReentrantLock();
233	>	public void testGetQueuedThreads() throws InterruptedException {
234	>	final PublicReentrantLock lock = new PublicReentrantLock();
235		Thread t1 = new Thread(new InterruptedLockRunnable(lock));
236		Thread t2 = new Thread(new InterruptibleLockRunnable(lock));
237	<	try {
238	<	assertTrue(lock.getQueuedThreads().isEmpty());
239	<	lock.lock();
240	<	assertTrue(lock.getQueuedThreads().isEmpty());
241	<	t1.start();
242	<	Thread.sleep(SHORT_DELAY_MS);
243	<	assertTrue(lock.getQueuedThreads().contains(t1));
244	<	t2.start();
245	<	Thread.sleep(SHORT_DELAY_MS);
246	<	assertTrue(lock.getQueuedThreads().contains(t1));
247	<	assertTrue(lock.getQueuedThreads().contains(t2));
248	<	t1.interrupt();
249	<	Thread.sleep(SHORT_DELAY_MS);
250	<	assertFalse(lock.getQueuedThreads().contains(t1));
251	<	assertTrue(lock.getQueuedThreads().contains(t2));
252	<	lock.unlock();
253	<	Thread.sleep(SHORT_DELAY_MS);
254	<	assertTrue(lock.getQueuedThreads().isEmpty());
255	<	t1.join();
256	<	t2.join();
234	<	} catch(Exception e){
235	<	unexpectedException();
236	<	}
237	<	}
237	>	assertTrue(lock.getQueuedThreads().isEmpty());
238	>	lock.lock();
239	>	assertTrue(lock.getQueuedThreads().isEmpty());
240	>	t1.start();
241	>	delay(SHORT_DELAY_MS);
242	>	assertTrue(lock.getQueuedThreads().contains(t1));
243	>	t2.start();
244	>	delay(SHORT_DELAY_MS);
245	>	assertTrue(lock.getQueuedThreads().contains(t1));
246	>	assertTrue(lock.getQueuedThreads().contains(t2));
247	>	t1.interrupt();
248	>	delay(SHORT_DELAY_MS);
249	>	assertFalse(lock.getQueuedThreads().contains(t1));
250	>	assertTrue(lock.getQueuedThreads().contains(t2));
251	>	lock.unlock();
252	>	delay(SHORT_DELAY_MS);
253	>	assertTrue(lock.getQueuedThreads().isEmpty());
254	>	t1.join();
255	>	t2.join();
256	>	}
257
258
259		/**
260		* timed tryLock is interruptible.
261		*/
262	<	public void testInterruptedException2() {
263	<	final ReentrantLock lock = new ReentrantLock();
264	<	lock.lock();
265	<	Thread t = new Thread(new Runnable() {
266	<	public void run() {
267	<	try {
268	<	lock.tryLock(MEDIUM_DELAY_MS,TimeUnit.MILLISECONDS);
269	<	threadShouldThrow();
270	<	} catch(InterruptedException success){}
271	<	}
272	<	});
254	<	try {
255	<	t.start();
256	<	t.interrupt();
257	<	} catch(Exception e){
258	<	unexpectedException();
259	<	}
262	>	public void testInterruptedException2() throws InterruptedException {
263	>	final ReentrantLock lock = new ReentrantLock();
264	>	lock.lock();
265	>	Thread t = newStartedThread(new CheckedInterruptedRunnable() {
266	>	public void realRun() throws InterruptedException {
267	>	lock.tryLock(MEDIUM_DELAY_MS,MILLISECONDS);
268	>	}});
269	>
270	>	delay(SHORT_DELAY_MS);
271	>	t.interrupt();
272	>	t.join();
273		}
274
275
276		/**
277		* TryLock on a locked lock fails
278		*/
279	<	public void testTryLockWhenLocked() {
280	<	final ReentrantLock lock = new ReentrantLock();
281	<	lock.lock();
282	<	Thread t = new Thread(new Runnable() {
283	<	public void run() {
284	<	threadAssertFalse(lock.tryLock());
285	<	}
286	<	});
287	<	try {
288	<	t.start();
289	<	t.join();
277	<	lock.unlock();
278	<	} catch(Exception e){
279	<	unexpectedException();
280	<	}
281	<	}
279	>	public void testTryLockWhenLocked() throws InterruptedException {
280	>	final ReentrantLock lock = new ReentrantLock();
281	>	lock.lock();
282	>	Thread t = newStartedThread(new CheckedRunnable() {
283	>	public void realRun() {
284	>	assertFalse(lock.tryLock());
285	>	}});
286	>
287	>	t.join();
288	>	lock.unlock();
289	>	}
290
291		/**
292		* Timed tryLock on a locked lock times out
293		*/
294	<	public void testTryLock_Timeout() {
295	<	final ReentrantLock lock = new ReentrantLock();
296	<	lock.lock();
297	<	Thread t = new Thread(new Runnable() {
298	<	public void run() {
299	<	try {
300	<	threadAssertFalse(lock.tryLock(1, TimeUnit.MILLISECONDS));
301	<	} catch (Exception ex) {
302	<	threadUnexpectedException();
303	<	}
304	<	}
305	<	});
298	<	try {
299	<	t.start();
300	<	t.join();
301	<	lock.unlock();
302	<	} catch(Exception e){
303	<	unexpectedException();
304	<	}
305	<	}
306	<
294	>	public void testTryLock_Timeout() throws InterruptedException {
295	>	final ReentrantLock lock = new ReentrantLock();
296	>	lock.lock();
297	>	Thread t = newStartedThread(new CheckedRunnable() {
298	>	public void realRun() throws InterruptedException {
299	>	assertFalse(lock.tryLock(1, MILLISECONDS));
300	>	}});
301	>
302	>	t.join();
303	>	lock.unlock();
304	>	}
305	>
306		/**
307		* getHoldCount returns number of recursive holds
308		*/
309		public void testGetHoldCount() {
310	<	ReentrantLock lock = new ReentrantLock();
311	<	for(int i = 1; i <= SIZE; i++) {
312	<	lock.lock();
313	<	assertEquals(i,lock.getHoldCount());
314	<	}
315	<	for(int i = SIZE; i > 0; i--) {
316	<	lock.unlock();
317	<	assertEquals(i-1,lock.getHoldCount());
318	<	}
310	>	ReentrantLock lock = new ReentrantLock();
311	>	for (int i = 1; i <= SIZE; i++) {
312	>	lock.lock();
313	>	assertEquals(i, lock.getHoldCount());
314	>	}
315	>	for (int i = SIZE; i > 0; i--) {
316	>	lock.unlock();
317	>	assertEquals(i-1, lock.getHoldCount());
318	>	}
319		}
320	<
321	<
320	>
321	>
322		/**
323		* isLocked is true when locked and false when not
324		*/
325	<	public void testIsLocked() {
326	<	final ReentrantLock lock = new ReentrantLock();
327	<	lock.lock();
328	<	assertTrue(lock.isLocked());
329	<	lock.unlock();
330	<	assertFalse(lock.isLocked());
331	<	Thread t = new Thread(new Runnable() {
332	<	public void run() {
333	<	lock.lock();
334	<	try {
335	<	Thread.sleep(SMALL_DELAY_MS);
336	<	}
337	<	catch(Exception e) {
338	<	threadUnexpectedException();
339	<	}
340	<	lock.unlock();
341	<	}
343	<	});
344	<	try {
345	<	t.start();
346	<	Thread.sleep(SHORT_DELAY_MS);
347	<	assertTrue(lock.isLocked());
348	<	t.join();
349	<	assertFalse(lock.isLocked());
350	<	} catch(Exception e){
351	<	unexpectedException();
352	<	}
325	>	public void testIsLocked() throws InterruptedException {
326	>	final ReentrantLock lock = new ReentrantLock();
327	>	lock.lock();
328	>	assertTrue(lock.isLocked());
329	>	lock.unlock();
330	>	assertFalse(lock.isLocked());
331	>	Thread t = newStartedThread(new CheckedRunnable() {
332	>	public void realRun() throws InterruptedException {
333	>	lock.lock();
334	>	delay(SMALL_DELAY_MS);
335	>	lock.unlock();
336	>	}});
337	>
338	>	delay(SHORT_DELAY_MS);
339	>	assertTrue(lock.isLocked());
340	>	t.join();
341	>	assertFalse(lock.isLocked());
342		}
343
344
345		/**
346		* lockInterruptibly is interruptible.
347		*/
348	<	public void testLockInterruptibly1() {
349	<	final ReentrantLock lock = new ReentrantLock();
350	<	lock.lock();
351	<	Thread t = new Thread(new InterruptedLockRunnable(lock));
352	<	try {
353	<	t.start();
354	<	t.interrupt();
355	<	lock.unlock();
356	<	t.join();
357	<	} catch(Exception e){
369	<	unexpectedException();
370	<	}
371	<	}
348	>	public void testLockInterruptibly1() throws InterruptedException {
349	>	final ReentrantLock lock = new ReentrantLock();
350	>	lock.lock();
351	>	Thread t = newStartedThread(new InterruptedLockRunnable(lock));
352	>	delay(SHORT_DELAY_MS);
353	>	t.interrupt();
354	>	delay(SHORT_DELAY_MS);
355	>	lock.unlock();
356	>	t.join();
357	>	}
358
359		/**
360		* lockInterruptibly succeeds when unlocked, else is interruptible
361		*/
362	<	public void testLockInterruptibly2() {
363	<	final ReentrantLock lock = new ReentrantLock();
364	<	try {
365	<	lock.lockInterruptibly();
366	<	} catch(Exception e) {
367	<	unexpectedException();
368	<	}
369	<	Thread t = new Thread(new InterruptedLockRunnable(lock));
370	<	try {
385	<	t.start();
386	<	t.interrupt();
387	<	assertTrue(lock.isLocked());
388	<	assertTrue(lock.isHeldByCurrentThread());
389	<	t.join();
390	<	} catch(Exception e){
391	<	unexpectedException();
392	<	}
362	>	public void testLockInterruptibly2() throws InterruptedException {
363	>	final ReentrantLock lock = new ReentrantLock();
364	>	lock.lockInterruptibly();
365	>	Thread t = newStartedThread(new InterruptedLockRunnable(lock));
366	>	delay(SHORT_DELAY_MS);
367	>	t.interrupt();
368	>	assertTrue(lock.isLocked());
369	>	assertTrue(lock.isHeldByCurrentThread());
370	>	t.join();
371		}
372
373		/**
374		* Calling await without holding lock throws IllegalMonitorStateException
375		*/
376	<	public void testAwait_IllegalMonitor() {
377	<	final ReentrantLock lock = new ReentrantLock();
376	>	public void testAwait_IllegalMonitor() throws InterruptedException {
377	>	final ReentrantLock lock = new ReentrantLock();
378		final Condition c = lock.newCondition();
379		try {
380		c.await();
381		shouldThrow();
382	<	}
405	<	catch (IllegalMonitorStateException success) {
406	<	}
407	<	catch (Exception ex) {
408	<	unexpectedException();
409	<	}
382	>	} catch (IllegalMonitorStateException success) {}
383		}
384
385		/**
386		* Calling signal without holding lock throws IllegalMonitorStateException
387		*/
388		public void testSignal_IllegalMonitor() {
389	<	final ReentrantLock lock = new ReentrantLock();
389	>	final ReentrantLock lock = new ReentrantLock();
390		final Condition c = lock.newCondition();
391		try {
392		c.signal();
393		shouldThrow();
394	<	}
422	<	catch (IllegalMonitorStateException success) {
423	<	}
424	<	catch (Exception ex) {
425	<	unexpectedException();
426	<	}
394	>	} catch (IllegalMonitorStateException success) {}
395		}
396
397		/**
398		* awaitNanos without a signal times out
399		*/
400	<	public void testAwaitNanos_Timeout() {
401	<	final ReentrantLock lock = new ReentrantLock();
400	>	public void testAwaitNanos_Timeout() throws InterruptedException {
401	>	final ReentrantLock lock = new ReentrantLock();
402		final Condition c = lock.newCondition();
403	<	try {
404	<	lock.lock();
405	<	long t = c.awaitNanos(100);
406	<	assertTrue(t <= 0);
439	<	lock.unlock();
440	<	}
441	<	catch (Exception ex) {
442	<	unexpectedException();
443	<	}
403	>	lock.lock();
404	>	long t = c.awaitNanos(100);
405	>	assertTrue(t <= 0);
406	>	lock.unlock();
407		}
408
409		/**
410	<	*  timed await without a signal times out
410	>	* timed await without a signal times out
411		*/
412	<	public void testAwait_Timeout() {
413	<	final ReentrantLock lock = new ReentrantLock();
412	>	public void testAwait_Timeout() throws InterruptedException {
413	>	final ReentrantLock lock = new ReentrantLock();
414		final Condition c = lock.newCondition();
415	<	try {
416	<	lock.lock();
417	<	assertFalse(c.await(SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
455	<	lock.unlock();
456	<	}
457	<	catch (Exception ex) {
458	<	unexpectedException();
459	<	}
415	>	lock.lock();
416	>	assertFalse(c.await(SHORT_DELAY_MS, MILLISECONDS));
417	>	lock.unlock();
418		}
419
420		/**
421		* awaitUntil without a signal times out
422		*/
423	<	public void testAwaitUntil_Timeout() {
424	<	final ReentrantLock lock = new ReentrantLock();
423	>	public void testAwaitUntil_Timeout() throws InterruptedException {
424	>	final ReentrantLock lock = new ReentrantLock();
425		final Condition c = lock.newCondition();
426	<	try {
427	<	lock.lock();
428	<	java.util.Date d = new java.util.Date();
429	<	assertFalse(c.awaitUntil(new java.util.Date(d.getTime() + 10)));
472	<	lock.unlock();
473	<	}
474	<	catch (Exception ex) {
475	<	unexpectedException();
476	<	}
426	>	lock.lock();
427	>	java.util.Date d = new java.util.Date();
428	>	assertFalse(c.awaitUntil(new java.util.Date(d.getTime() + 10)));
429	>	lock.unlock();
430		}
431
432		/**
433		* await returns when signalled
434		*/
435	<	public void testAwait() {
436	<	final ReentrantLock lock = new ReentrantLock();
435	>	public void testAwait() throws InterruptedException {
436	>	final ReentrantLock lock = new ReentrantLock();
437		final Condition c = lock.newCondition();
438	<	Thread t = new Thread(new Runnable() {
439	<	public void run() {
440	<	try {
441	<	lock.lock();
442	<	c.await();
443	<	lock.unlock();
444	<	}
445	<	catch(InterruptedException e) {
446	<	threadUnexpectedException();
447	<	}
448	<	}
449	<	});
450	<
498	<	try {
499	<	t.start();
500	<	Thread.sleep(SHORT_DELAY_MS);
501	<	lock.lock();
502	<	c.signal();
503	<	lock.unlock();
504	<	t.join(SHORT_DELAY_MS);
505	<	assertFalse(t.isAlive());
506	<	}
507	<	catch (Exception ex) {
508	<	unexpectedException();
509	<	}
438	>	Thread t = newStartedThread(new CheckedRunnable() {
439	>	public void realRun() throws InterruptedException {
440	>	lock.lock();
441	>	c.await();
442	>	lock.unlock();
443	>	}});
444	>
445	>	delay(SHORT_DELAY_MS);
446	>	lock.lock();
447	>	c.signal();
448	>	lock.unlock();
449	>	t.join(SHORT_DELAY_MS);
450	>	assertFalse(t.isAlive());
451		}
452
453		/**
454		* hasWaiters throws NPE if null
455		*/
456		public void testHasWaitersNPE() {
457	<	final ReentrantLock lock = new ReentrantLock();
457	>	final ReentrantLock lock = new ReentrantLock();
458		try {
459		lock.hasWaiters(null);
460		shouldThrow();
461	<	} catch (NullPointerException success) {
521	<	} catch (Exception ex) {
522	<	unexpectedException();
523	<	}
461	>	} catch (NullPointerException success) {}
462		}
463
464		/**
465		* getWaitQueueLength throws NPE if null
466		*/
467		public void testGetWaitQueueLengthNPE() {
468	<	final ReentrantLock lock = new ReentrantLock();
468	>	final ReentrantLock lock = new ReentrantLock();
469		try {
470		lock.getWaitQueueLength(null);
471		shouldThrow();
472	<	} catch (NullPointerException success) {
535	<	} catch (Exception ex) {
536	<	unexpectedException();
537	<	}
472	>	} catch (NullPointerException success) {}
473		}
474
475
#	Line 542 | Line 477 | public class ReentrantLockTest extends J
477		* getWaitingThreads throws NPE if null
478		*/
479		public void testGetWaitingThreadsNPE() {
480	<	final PublicReentrantLock lock = new PublicReentrantLock();
480	>	final PublicReentrantLock lock = new PublicReentrantLock();
481		try {
482		lock.getWaitingThreads(null);
483		shouldThrow();
484	<	} catch (NullPointerException success) {
550	<	} catch (Exception ex) {
551	<	unexpectedException();
552	<	}
484	>	} catch (NullPointerException success) {}
485		}
486
487
#	Line 557 | Line 489 | public class ReentrantLockTest extends J
489		* hasWaiters throws IAE if not owned
490		*/
491		public void testHasWaitersIAE() {
492	<	final ReentrantLock lock = new ReentrantLock();
493	<	final Condition c = (lock.newCondition());
494	<	final ReentrantLock lock2 = new ReentrantLock();
492	>	final ReentrantLock lock = new ReentrantLock();
493	>	final Condition c = lock.newCondition();
494	>	final ReentrantLock lock2 = new ReentrantLock();
495		try {
496		lock2.hasWaiters(c);
497		shouldThrow();
498	<	} catch (IllegalArgumentException success) {
567	<	} catch (Exception ex) {
568	<	unexpectedException();
569	<	}
498	>	} catch (IllegalArgumentException success) {}
499		}
500
501		/**
502		* hasWaiters throws IMSE if not locked
503		*/
504		public void testHasWaitersIMSE() {
505	<	final ReentrantLock lock = new ReentrantLock();
506	<	final Condition c = (lock.newCondition());
505	>	final ReentrantLock lock = new ReentrantLock();
506	>	final Condition c = lock.newCondition();
507		try {
508		lock.hasWaiters(c);
509		shouldThrow();
510	<	} catch (IllegalMonitorStateException success) {
582	<	} catch (Exception ex) {
583	<	unexpectedException();
584	<	}
510	>	} catch (IllegalMonitorStateException success) {}
511		}
512
513
#	Line 589 | Line 515 | public class ReentrantLockTest extends J
515		* getWaitQueueLength throws IAE if not owned
516		*/
517		public void testGetWaitQueueLengthIAE() {
518	<	final ReentrantLock lock = new ReentrantLock();
519	<	final Condition c = (lock.newCondition());
520	<	final ReentrantLock lock2 = new ReentrantLock();
518	>	final ReentrantLock lock = new ReentrantLock();
519	>	final Condition c = lock.newCondition();
520	>	final ReentrantLock lock2 = new ReentrantLock();
521		try {
522		lock2.getWaitQueueLength(c);
523		shouldThrow();
524	<	} catch (IllegalArgumentException success) {
599	<	} catch (Exception ex) {
600	<	unexpectedException();
601	<	}
524	>	} catch (IllegalArgumentException success) {}
525		}
526
527		/**
528		* getWaitQueueLength throws IMSE if not locked
529		*/
530		public void testGetWaitQueueLengthIMSE() {
531	<	final ReentrantLock lock = new ReentrantLock();
532	<	final Condition c = (lock.newCondition());
531	>	final ReentrantLock lock = new ReentrantLock();
532	>	final Condition c = lock.newCondition();
533		try {
534		lock.getWaitQueueLength(c);
535		shouldThrow();
536	<	} catch (IllegalMonitorStateException success) {
614	<	} catch (Exception ex) {
615	<	unexpectedException();
616	<	}
536	>	} catch (IllegalMonitorStateException success) {}
537		}
538
539
#	Line 621 | Line 541 | public class ReentrantLockTest extends J
541		* getWaitingThreads throws IAE if not owned
542		*/
543		public void testGetWaitingThreadsIAE() {
544	<	final PublicReentrantLock lock = new PublicReentrantLock();
545	<	final Condition c = (lock.newCondition());
546	<	final PublicReentrantLock lock2 = new PublicReentrantLock();
544	>	final PublicReentrantLock lock = new PublicReentrantLock();
545	>	final Condition c = lock.newCondition();
546	>	final PublicReentrantLock lock2 = new PublicReentrantLock();
547		try {
548		lock2.getWaitingThreads(c);
549		shouldThrow();
550	<	} catch (IllegalArgumentException success) {
631	<	} catch (Exception ex) {
632	<	unexpectedException();
633	<	}
550	>	} catch (IllegalArgumentException success) {}
551		}
552
553		/**
554		* getWaitingThreads throws IMSE if not locked
555		*/
556		public void testGetWaitingThreadsIMSE() {
557	<	final PublicReentrantLock lock = new PublicReentrantLock();
558	<	final Condition c = (lock.newCondition());
557	>	final PublicReentrantLock lock = new PublicReentrantLock();
558	>	final Condition c = lock.newCondition();
559		try {
560		lock.getWaitingThreads(c);
561		shouldThrow();
562	<	} catch (IllegalMonitorStateException success) {
646	<	} catch (Exception ex) {
647	<	unexpectedException();
648	<	}
562	>	} catch (IllegalMonitorStateException success) {}
563		}
564
565
652	–
566		/**
567		* hasWaiters returns true when a thread is waiting, else false
568		*/
569	<	public void testHasWaiters() {
570	<	final ReentrantLock lock = new ReentrantLock();
569	>	public void testHasWaiters() throws InterruptedException {
570	>	final ReentrantLock lock = new ReentrantLock();
571		final Condition c = lock.newCondition();
572	<	Thread t = new Thread(new Runnable() {
573	<	public void run() {
574	<	try {
575	<	lock.lock();
576	<	threadAssertFalse(lock.hasWaiters(c));
577	<	threadAssertEquals(0, lock.getWaitQueueLength(c));
578	<	c.await();
579	<	lock.unlock();
580	<	}
581	<	catch(InterruptedException e) {
582	<	threadUnexpectedException();
583	<	}
584	<	}
585	<	});
586	<
587	<	try {
588	<	t.start();
589	<	Thread.sleep(SHORT_DELAY_MS);
590	<	lock.lock();
591	<	assertTrue(lock.hasWaiters(c));
592	<	assertEquals(1, lock.getWaitQueueLength(c));
593	<	c.signal();
681	<	lock.unlock();
682	<	Thread.sleep(SHORT_DELAY_MS);
683	<	lock.lock();
684	<	assertFalse(lock.hasWaiters(c));
685	<	assertEquals(0, lock.getWaitQueueLength(c));
686	<	lock.unlock();
687	<	t.join(SHORT_DELAY_MS);
688	<	assertFalse(t.isAlive());
689	<	}
690	<	catch (Exception ex) {
691	<	unexpectedException();
692	<	}
572	>	Thread t = newStartedThread(new CheckedRunnable() {
573	>	public void realRun() throws InterruptedException {
574	>	lock.lock();
575	>	assertFalse(lock.hasWaiters(c));
576	>	assertEquals(0, lock.getWaitQueueLength(c));
577	>	c.await();
578	>	lock.unlock();
579	>	}});
580	>
581	>	delay(SHORT_DELAY_MS);
582	>	lock.lock();
583	>	assertTrue(lock.hasWaiters(c));
584	>	assertEquals(1, lock.getWaitQueueLength(c));
585	>	c.signal();
586	>	lock.unlock();
587	>	delay(SHORT_DELAY_MS);
588	>	lock.lock();
589	>	assertFalse(lock.hasWaiters(c));
590	>	assertEquals(0, lock.getWaitQueueLength(c));
591	>	lock.unlock();
592	>	t.join(SHORT_DELAY_MS);
593	>	assertFalse(t.isAlive());
594		}
595
596		/**
597		* getWaitQueueLength returns number of waiting threads
598		*/
599	<	public void testGetWaitQueueLength() {
600	<	final ReentrantLock lock = new ReentrantLock();
599	>	public void testGetWaitQueueLength() throws InterruptedException {
600	>	final ReentrantLock lock = new ReentrantLock();
601		final Condition c = lock.newCondition();
602	<	Thread t1 = new Thread(new Runnable() {
603	<	public void run() {
604	<	try {
605	<	lock.lock();
606	<	threadAssertFalse(lock.hasWaiters(c));
607	<	threadAssertEquals(0, lock.getWaitQueueLength(c));
608	<	c.await();
609	<	lock.unlock();
610	<	}
611	<	catch(InterruptedException e) {
612	<	threadUnexpectedException();
613	<	}
614	<	}
615	<	});
616	<
617	<	Thread t2 = new Thread(new Runnable() {
618	<	public void run() {
619	<	try {
620	<	lock.lock();
621	<	threadAssertTrue(lock.hasWaiters(c));
622	<	threadAssertEquals(1, lock.getWaitQueueLength(c));
623	<	c.await();
624	<	lock.unlock();
625	<	}
626	<	catch(InterruptedException e) {
627	<	threadUnexpectedException();
628	<	}
629	<	}
630	<	});
631	<
632	<	try {
633	<	t1.start();
634	<	Thread.sleep(SHORT_DELAY_MS);
635	<	t2.start();
636	<	Thread.sleep(SHORT_DELAY_MS);
736	<	lock.lock();
737	<	assertTrue(lock.hasWaiters(c));
738	<	assertEquals(2, lock.getWaitQueueLength(c));
739	<	c.signalAll();
740	<	lock.unlock();
741	<	Thread.sleep(SHORT_DELAY_MS);
742	<	lock.lock();
743	<	assertFalse(lock.hasWaiters(c));
744	<	assertEquals(0, lock.getWaitQueueLength(c));
745	<	lock.unlock();
746	<	t1.join(SHORT_DELAY_MS);
747	<	t2.join(SHORT_DELAY_MS);
748	<	assertFalse(t1.isAlive());
749	<	assertFalse(t2.isAlive());
750	<	}
751	<	catch (Exception ex) {
752	<	unexpectedException();
753	<	}
602	>	Thread t1 = newStartedThread(new CheckedRunnable() {
603	>	public void realRun() throws InterruptedException {
604	>	lock.lock();
605	>	assertFalse(lock.hasWaiters(c));
606	>	assertEquals(0, lock.getWaitQueueLength(c));
607	>	c.await();
608	>	lock.unlock();
609	>	}});
610	>
611	>	delay(SHORT_DELAY_MS);
612	>
613	>	Thread t2 = newStartedThread(new CheckedRunnable() {
614	>	public void realRun() throws InterruptedException {
615	>	lock.lock();
616	>	assertTrue(lock.hasWaiters(c));
617	>	assertEquals(1, lock.getWaitQueueLength(c));
618	>	c.await();
619	>	lock.unlock();
620	>	}});
621	>
622	>	delay(SHORT_DELAY_MS);
623	>	lock.lock();
624	>	assertTrue(lock.hasWaiters(c));
625	>	assertEquals(2, lock.getWaitQueueLength(c));
626	>	c.signalAll();
627	>	lock.unlock();
628	>	delay(SHORT_DELAY_MS);
629	>	lock.lock();
630	>	assertFalse(lock.hasWaiters(c));
631	>	assertEquals(0, lock.getWaitQueueLength(c));
632	>	lock.unlock();
633	>	t1.join(SHORT_DELAY_MS);
634	>	t2.join(SHORT_DELAY_MS);
635	>	assertFalse(t1.isAlive());
636	>	assertFalse(t2.isAlive());
637		}
638
639		/**
640		* getWaitingThreads returns only and all waiting threads
641		*/
642	<	public void testGetWaitingThreads() {
643	<	final PublicReentrantLock lock = new PublicReentrantLock();
642	>	public void testGetWaitingThreads() throws InterruptedException {
643	>	final PublicReentrantLock lock = new PublicReentrantLock();
644		final Condition c = lock.newCondition();
645	<	Thread t1 = new Thread(new Runnable() {
646	<	public void run() {
647	<	try {
648	<	lock.lock();
649	<	threadAssertTrue(lock.getWaitingThreads(c).isEmpty());
650	<	c.await();
651	<	lock.unlock();
652	<	}
653	<	catch(InterruptedException e) {
654	<	threadUnexpectedException();
655	<	}
656	<	}
657	<	});
658	<
659	<	Thread t2 = new Thread(new Runnable() {
660	<	public void run() {
661	<	try {
662	<	lock.lock();
663	<	threadAssertFalse(lock.getWaitingThreads(c).isEmpty());
664	<	c.await();
665	<	lock.unlock();
666	<	}
667	<	catch(InterruptedException e) {
668	<	threadUnexpectedException();
669	<	}
670	<	}
671	<	});
645	>	Thread t1 = new Thread(new CheckedRunnable() {
646	>	public void realRun() throws InterruptedException {
647	>	lock.lock();
648	>	assertTrue(lock.getWaitingThreads(c).isEmpty());
649	>	c.await();
650	>	lock.unlock();
651	>	}});
652	>
653	>	Thread t2 = new Thread(new CheckedRunnable() {
654	>	public void realRun() throws InterruptedException {
655	>	lock.lock();
656	>	assertFalse(lock.getWaitingThreads(c).isEmpty());
657	>	c.await();
658	>	lock.unlock();
659	>	}});
660	>
661	>	lock.lock();
662	>	assertTrue(lock.getWaitingThreads(c).isEmpty());
663	>	lock.unlock();
664	>	t1.start();
665	>	delay(SHORT_DELAY_MS);
666	>	t2.start();
667	>	delay(SHORT_DELAY_MS);
668	>	lock.lock();
669	>	assertTrue(lock.hasWaiters(c));
670	>	assertTrue(lock.getWaitingThreads(c).contains(t1));
671	>	assertTrue(lock.getWaitingThreads(c).contains(t2));
672	>	c.signalAll();
673	>	lock.unlock();
674	>	delay(SHORT_DELAY_MS);
675	>	lock.lock();
676	>	assertFalse(lock.hasWaiters(c));
677	>	assertTrue(lock.getWaitingThreads(c).isEmpty());
678	>	lock.unlock();
679	>	t1.join(SHORT_DELAY_MS);
680	>	t2.join(SHORT_DELAY_MS);
681	>	assertFalse(t1.isAlive());
682	>	assertFalse(t2.isAlive());
683	>	}
684	>
685	>	/** A helper class for uninterruptible wait tests */
686	>	class UninterruptibleThread extends Thread {
687	>	private ReentrantLock lock;
688	>	private Condition c;
689	>
690	>	public volatile boolean canAwake = false;
691	>	public volatile boolean interrupted = false;
692	>	public volatile boolean lockStarted = false;
693	>
694	>	public UninterruptibleThread(ReentrantLock lock, Condition c) {
695	>	this.lock = lock;
696	>	this.c = c;
697	>	}
698	>
699	>	public synchronized void run() {
700	>	lock.lock();
701	>	lockStarted = true;
702	>
703	>	while (!canAwake) {
704	>	c.awaitUninterruptibly();
705	>	}
706
707	<	try {
791	<	lock.lock();
792	<	assertTrue(lock.getWaitingThreads(c).isEmpty());
707	>	interrupted = isInterrupted();
708		lock.unlock();
794	–	t1.start();
795	–	Thread.sleep(SHORT_DELAY_MS);
796	–	t2.start();
797	–	Thread.sleep(SHORT_DELAY_MS);
798	–	lock.lock();
799	–	assertTrue(lock.hasWaiters(c));
800	–	assertTrue(lock.getWaitingThreads(c).contains(t1));
801	–	assertTrue(lock.getWaitingThreads(c).contains(t2));
802	–	c.signalAll();
803	–	lock.unlock();
804	–	Thread.sleep(SHORT_DELAY_MS);
805	–	lock.lock();
806	–	assertFalse(lock.hasWaiters(c));
807	–	assertTrue(lock.getWaitingThreads(c).isEmpty());
808	–	lock.unlock();
809	–	t1.join(SHORT_DELAY_MS);
810	–	t2.join(SHORT_DELAY_MS);
811	–	assertFalse(t1.isAlive());
812	–	assertFalse(t2.isAlive());
813	–	}
814	–	catch (Exception ex) {
815	–	unexpectedException();
709		}
710		}
711
819	–
820	–
712		/**
713		* awaitUninterruptibly doesn't abort on interrupt
714		*/
715	<	public void testAwaitUninterruptibly() {
716	<	final ReentrantLock lock = new ReentrantLock();
715	>	public void testAwaitUninterruptibly() throws InterruptedException {
716	>	final ReentrantLock lock = new ReentrantLock();
717		final Condition c = lock.newCondition();
718	<	Thread t = new Thread(new Runnable() {
719	<	public void run() {
720	<	lock.lock();
721	<	c.awaitUninterruptibly();
722	<	lock.unlock();
723	<	}
724	<	});
718	>	UninterruptibleThread thread = new UninterruptibleThread(lock, c);
719	>
720	>	thread.start();
721	>
722	>	while (!thread.lockStarted) {
723	>	delay(100);
724	>	}
725
726	+	lock.lock();
727		try {
728	<	t.start();
729	<	Thread.sleep(SHORT_DELAY_MS);
838	<	t.interrupt();
839	<	lock.lock();
728	>	thread.interrupt();
729	>	thread.canAwake = true;
730		c.signal();
731	+	} finally {
732		lock.unlock();
842	–	assert(t.isInterrupted());
843	–	t.join(SHORT_DELAY_MS);
844	–	assertFalse(t.isAlive());
845	–	}
846	–	catch (Exception ex) {
847	–	unexpectedException();
733		}
734	+
735	+	thread.join();
736	+	assertTrue(thread.interrupted);
737	+	assertFalse(thread.isAlive());
738		}
739
740		/**
741		* await is interruptible
742		*/
743	<	public void testAwait_Interrupt() {
744	<	final ReentrantLock lock = new ReentrantLock();
743	>	public void testAwait_Interrupt() throws InterruptedException {
744	>	final ReentrantLock lock = new ReentrantLock();
745		final Condition c = lock.newCondition();
746	<	Thread t = new Thread(new Runnable() {
747	<	public void run() {
748	<	try {
749	<	lock.lock();
750	<	c.await();
751	<	lock.unlock();
752	<	threadShouldThrow();
753	<	}
754	<	catch(InterruptedException success) {
755	<	}
867	<	}
868	<	});
869	<
870	<	try {
871	<	t.start();
872	<	Thread.sleep(SHORT_DELAY_MS);
873	<	t.interrupt();
874	<	t.join(SHORT_DELAY_MS);
875	<	assertFalse(t.isAlive());
876	<	}
877	<	catch (Exception ex) {
878	<	unexpectedException();
879	<	}
746	>	Thread t = newStartedThread(new CheckedInterruptedRunnable() {
747	>	public void realRun() throws InterruptedException {
748	>	lock.lock();
749	>	c.await();
750	>	}});
751	>
752	>	delay(SHORT_DELAY_MS);
753	>	t.interrupt();
754	>	t.join(SHORT_DELAY_MS);
755	>	assertFalse(t.isAlive());
756		}
757
758		/**
759		* awaitNanos is interruptible
760		*/
761	<	public void testAwaitNanos_Interrupt() {
762	<	final ReentrantLock lock = new ReentrantLock();
761	>	public void testAwaitNanos_Interrupt() throws InterruptedException {
762	>	final ReentrantLock lock = new ReentrantLock();
763		final Condition c = lock.newCondition();
764	<	Thread t = new Thread(new Runnable() {
765	<	public void run() {
766	<	try {
767	<	lock.lock();
768	<	c.awaitNanos(1000 * 1000 * 1000); // 1 sec
769	<	lock.unlock();
770	<	threadShouldThrow();
771	<	}
772	<	catch(InterruptedException success) {
773	<	}
898	<	}
899	<	});
900	<
901	<	try {
902	<	t.start();
903	<	Thread.sleep(SHORT_DELAY_MS);
904	<	t.interrupt();
905	<	t.join(SHORT_DELAY_MS);
906	<	assertFalse(t.isAlive());
907	<	}
908	<	catch (Exception ex) {
909	<	unexpectedException();
910	<	}
764	>	Thread t = newStartedThread(new CheckedInterruptedRunnable() {
765	>	public void realRun() throws InterruptedException {
766	>	lock.lock();
767	>	c.awaitNanos(MILLISECONDS.toNanos(LONG_DELAY_MS));
768	>	}});
769	>
770	>	delay(SHORT_DELAY_MS);
771	>	t.interrupt();
772	>	t.join(SHORT_DELAY_MS);
773	>	assertFalse(t.isAlive());
774		}
775
776		/**
777		* awaitUntil is interruptible
778		*/
779	<	public void testAwaitUntil_Interrupt() {
780	<	final ReentrantLock lock = new ReentrantLock();
779	>	public void testAwaitUntil_Interrupt() throws InterruptedException {
780	>	final ReentrantLock lock = new ReentrantLock();
781		final Condition c = lock.newCondition();
782	<	Thread t = new Thread(new Runnable() {
783	<	public void run() {
784	<	try {
785	<	lock.lock();
786	<	java.util.Date d = new java.util.Date();
787	<	c.awaitUntil(new java.util.Date(d.getTime() + 10000));
788	<	lock.unlock();
789	<	threadShouldThrow();
790	<	}
791	<	catch(InterruptedException success) {
792	<	}
930	<	}
931	<	});
932	<
933	<	try {
934	<	t.start();
935	<	Thread.sleep(SHORT_DELAY_MS);
936	<	t.interrupt();
937	<	t.join(SHORT_DELAY_MS);
938	<	assertFalse(t.isAlive());
939	<	}
940	<	catch (Exception ex) {
941	<	unexpectedException();
942	<	}
782	>	Thread t = newStartedThread(new CheckedInterruptedRunnable() {
783	>	public void realRun() throws InterruptedException {
784	>	lock.lock();
785	>	java.util.Date d = new java.util.Date();
786	>	c.awaitUntil(new java.util.Date(d.getTime() + 10000));
787	>	}});
788	>
789	>	delay(SHORT_DELAY_MS);
790	>	t.interrupt();
791	>	t.join(SHORT_DELAY_MS);
792	>	assertFalse(t.isAlive());
793		}
794
795		/**
796		* signalAll wakes up all threads
797		*/
798	<	public void testSignalAll() {
799	<	final ReentrantLock lock = new ReentrantLock();
798	>	public void testSignalAll() throws InterruptedException {
799	>	final ReentrantLock lock = new ReentrantLock();
800		final Condition c = lock.newCondition();
801	<	Thread t1 = new Thread(new Runnable() {
802	<	public void run() {
803	<	try {
804	<	lock.lock();
805	<	c.await();
806	<	lock.unlock();
807	<	}
808	<	catch(InterruptedException e) {
809	<	threadUnexpectedException();
810	<	}
811	<	}
812	<	});
813	<
814	<	Thread t2 = new Thread(new Runnable() {
815	<	public void run() {
816	<	try {
817	<	lock.lock();
818	<	c.await();
819	<	lock.unlock();
820	<	}
821	<	catch(InterruptedException e) {
822	<	threadUnexpectedException();
823	<	}
824	<	}
825	<	});
826	<
827	<	try {
828	<	t1.start();
829	<	t2.start();
830	<	Thread.sleep(SHORT_DELAY_MS);
831	<	lock.lock();
832	<	c.signalAll();
833	<	lock.unlock();
834	<	t1.join(SHORT_DELAY_MS);
835	<	t2.join(SHORT_DELAY_MS);
836	<	assertFalse(t1.isAlive());
837	<	assertFalse(t2.isAlive());
838	<	}
839	<	catch (Exception ex) {
840	<	unexpectedException();
841	<	}
801	>	Thread t1 = newStartedThread(new CheckedRunnable() {
802	>	public void realRun() throws InterruptedException {
803	>	lock.lock();
804	>	c.await();
805	>	lock.unlock();
806	>	}});
807	>
808	>	Thread t2 = newStartedThread(new CheckedRunnable() {
809	>	public void realRun() throws InterruptedException {
810	>	lock.lock();
811	>	c.await();
812	>	lock.unlock();
813	>	}});
814	>
815	>	delay(SHORT_DELAY_MS);
816	>	lock.lock();
817	>	c.signalAll();
818	>	lock.unlock();
819	>	t1.join(SHORT_DELAY_MS);
820	>	t2.join(SHORT_DELAY_MS);
821	>	assertFalse(t1.isAlive());
822	>	assertFalse(t2.isAlive());
823	>	}
824	>
825	>	/**
826	>	* await after multiple reentrant locking preserves lock count
827	>	*/
828	>	public void testAwaitLockCount() throws InterruptedException {
829	>	final ReentrantLock lock = new ReentrantLock();
830	>	final Condition c = lock.newCondition();
831	>	Thread t1 = newStartedThread(new CheckedRunnable() {
832	>	public void realRun() throws InterruptedException {
833	>	lock.lock();
834	>	assertEquals(1, lock.getHoldCount());
835	>	c.await();
836	>	assertEquals(1, lock.getHoldCount());
837	>	lock.unlock();
838	>	}});
839	>
840	>	Thread t2 = newStartedThread(new CheckedRunnable() {
841	>	public void realRun() throws InterruptedException {
842	>	lock.lock();
843	>	lock.lock();
844	>	assertEquals(2, lock.getHoldCount());
845	>	c.await();
846	>	assertEquals(2, lock.getHoldCount());
847	>	lock.unlock();
848	>	lock.unlock();
849	>	}});
850	>
851	>	delay(SHORT_DELAY_MS);
852	>	lock.lock();
853	>	c.signalAll();
854	>	lock.unlock();
855	>	t1.join(SHORT_DELAY_MS);
856	>	t2.join(SHORT_DELAY_MS);
857	>	assertFalse(t1.isAlive());
858	>	assertFalse(t2.isAlive());
859		}
860
861		/**
862		* A serialized lock deserializes as unlocked
863		*/
864	<	public void testSerialization() {
864	>	public void testSerialization() throws Exception {
865		ReentrantLock l = new ReentrantLock();
866		l.lock();
867		l.unlock();
868
869	<	try {
870	<	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
871	<	ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
872	<	out.writeObject(l);
873	<	out.close();
874	<
875	<	ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
876	<	ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
877	<	ReentrantLock r = (ReentrantLock) in.readObject();
878	<	r.lock();
879	<	r.unlock();
880	<	} catch(Exception e){
881	<	e.printStackTrace();
1015	<	unexpectedException();
1016	<	}
869	>	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
870	>	ObjectOutputStream out =
871	>	new ObjectOutputStream(new BufferedOutputStream(bout));
872	>	out.writeObject(l);
873	>	out.close();
874	>
875	>	ByteArrayInputStream bin =
876	>	new ByteArrayInputStream(bout.toByteArray());
877	>	ObjectInputStream in =
878	>	new ObjectInputStream(new BufferedInputStream(bin));
879	>	ReentrantLock r = (ReentrantLock) in.readObject();
880	>	r.lock();
881	>	r.unlock();
882		}
883
884		/**

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