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

Comparing jsr166/src/test/tck/ReentrantLockTest.java (file contents):
Revision 1.27 by jsr166, Mon Nov 16 04:57:10 2009 UTC vs.
Revision 1.40 by dl, Fri May 6 11:22:07 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
4	>	* http://creativecommons.org/publicdomain/zero/1.0/
5		* Other contributors include Andrew Wright, Jeffrey Hayes,
6		* Pat Fisher, Mike Judd.
7		*/
#	Line 9 | Line 9
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 60 | Line 56 | public class ReentrantLockTest extends J
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());
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();
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);
85	>	ReentrantLock rl = new ReentrantLock(true);
86		rl.lock();
87		assertTrue(rl.isLocked());
88		rl.unlock();
#	Line 98 | Line 92 | public class ReentrantLockTest extends J
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){}
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();
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();
143	<	t2.join();
144	<	} catch (Exception e){
145	<	unexpectedException();
146	<	}
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();
172	<	t2.join();
173	<	} catch (Exception e){
174	<	unexpectedException();
175	<	}
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();
201	<	t2.join();
202	<	} catch (Exception e){
203	<	unexpectedException();
204	<	}
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();
192	>	final ReentrantLock sync = new ReentrantLock();
193		try {
194		sync.hasQueuedThread(null);
195		shouldThrow();
196	<	} catch (NullPointerException success) {
216	<	}
196	>	} catch (NullPointerException success) {}
197		}
198
199		/**
200		* hasQueuedThread reports whether a thread is queued.
201		*/
202	<	public void testHasQueuedThread() {
203	<	final ReentrantLock sync = new ReentrantLock();
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	<	try {
207	<	assertFalse(sync.hasQueuedThread(t1));
208	<	assertFalse(sync.hasQueuedThread(t2));
209	<	sync.lock();
210	<	t1.start();
211	<	Thread.sleep(SHORT_DELAY_MS);
212	<	assertTrue(sync.hasQueuedThread(t1));
213	<	t2.start();
214	<	Thread.sleep(SHORT_DELAY_MS);
215	<	assertTrue(sync.hasQueuedThread(t1));
216	<	assertTrue(sync.hasQueuedThread(t2));
217	<	t1.interrupt();
218	<	Thread.sleep(SHORT_DELAY_MS);
219	<	assertFalse(sync.hasQueuedThread(t1));
220	<	assertTrue(sync.hasQueuedThread(t2));
221	<	sync.unlock();
222	<	Thread.sleep(SHORT_DELAY_MS);
223	<	assertFalse(sync.hasQueuedThread(t1));
224	<	Thread.sleep(SHORT_DELAY_MS);
225	<	assertFalse(sync.hasQueuedThread(t2));
226	<	t1.join();
247	<	t2.join();
248	<	} catch (Exception e){
249	<	unexpectedException();
250	<	}
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();
280	<	t2.join();
281	<	} catch (Exception e){
282	<	unexpectedException();
283	<	}
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	<	});
273	<	try {
302	<	t.start();
303	<	t.interrupt();
304	<	} catch (Exception e){
305	<	unexpectedException();
306	<	}
262	>	public void testInterruptedException2() throws InterruptedException {
263	>	final ReentrantLock lock = new ReentrantLock();
264	>	lock.lock();
265	>	Thread t = new Thread(new CheckedInterruptedRunnable() {
266	>	public void realRun() throws InterruptedException {
267	>	lock.tryLock(MEDIUM_DELAY_MS,MILLISECONDS);
268	>	}});
269	>
270	>	t.start();
271	>	delay(SHORT_DELAY_MS);
272	>	t.interrupt();
273	>	t.join();
274		}
275
276
277		/**
278		* TryLock on a locked lock fails
279		*/
280	<	public void testTryLockWhenLocked() {
281	<	final ReentrantLock lock = new ReentrantLock();
282	<	lock.lock();
283	<	Thread t = new Thread(new Runnable() {
284	<	public void run() {
285	<	threadAssertFalse(lock.tryLock());
286	<	}
287	<	});
288	<	try {
289	<	t.start();
290	<	t.join();
324	<	lock.unlock();
325	<	} catch (Exception e){
326	<	unexpectedException();
327	<	}
280	>	public void testTryLockWhenLocked() throws InterruptedException {
281	>	final ReentrantLock lock = new ReentrantLock();
282	>	lock.lock();
283	>	Thread t = new Thread(new CheckedRunnable() {
284	>	public void realRun() {
285	>	assertFalse(lock.tryLock());
286	>	}});
287	>
288	>	t.start();
289	>	t.join();
290	>	lock.unlock();
291		}
292
293		/**
294		* Timed tryLock on a locked lock times out
295		*/
296	<	public void testTryLock_Timeout() {
297	<	final ReentrantLock lock = new ReentrantLock();
298	<	lock.lock();
299	<	Thread t = new Thread(new Runnable() {
300	<	public void run() {
301	<	try {
302	<	threadAssertFalse(lock.tryLock(1, TimeUnit.MILLISECONDS));
303	<	} catch (Exception ex) {
304	<	threadUnexpectedException();
305	<	}
306	<	}
344	<	});
345	<	try {
346	<	t.start();
347	<	t.join();
348	<	lock.unlock();
349	<	} catch (Exception e){
350	<	unexpectedException();
351	<	}
296	>	public void testTryLock_Timeout() throws InterruptedException {
297	>	final ReentrantLock lock = new ReentrantLock();
298	>	lock.lock();
299	>	Thread t = new Thread(new CheckedRunnable() {
300	>	public void realRun() throws InterruptedException {
301	>	assertFalse(lock.tryLock(1, MILLISECONDS));
302	>	}});
303	>
304	>	t.start();
305	>	t.join();
306	>	lock.unlock();
307		}
308
309		/**
310		* getHoldCount returns number of recursive holds
311		*/
312		public void testGetHoldCount() {
313	<	ReentrantLock lock = new ReentrantLock();
314	<	for (int i = 1; i <= SIZE; i++) {
315	<	lock.lock();
316	<	assertEquals(i,lock.getHoldCount());
317	<	}
318	<	for (int i = SIZE; i > 0; i--) {
319	<	lock.unlock();
320	<	assertEquals(i-1,lock.getHoldCount());
321	<	}
313	>	ReentrantLock lock = new ReentrantLock();
314	>	for (int i = 1; i <= SIZE; i++) {
315	>	lock.lock();
316	>	assertEquals(i, lock.getHoldCount());
317	>	}
318	>	for (int i = SIZE; i > 0; i--) {
319	>	lock.unlock();
320	>	assertEquals(i-1, lock.getHoldCount());
321	>	}
322		}
323
324
325		/**
326		* isLocked is true when locked and false when not
327		*/
328	<	public void testIsLocked() {
329	<	final ReentrantLock lock = new ReentrantLock();
330	<	lock.lock();
331	<	assertTrue(lock.isLocked());
332	<	lock.unlock();
333	<	assertFalse(lock.isLocked());
334	<	Thread t = new Thread(new Runnable() {
335	<	public void run() {
336	<	lock.lock();
337	<	try {
338	<	Thread.sleep(SMALL_DELAY_MS);
339	<	}
340	<	catch (Exception e) {
341	<	threadUnexpectedException();
342	<	}
343	<	lock.unlock();
344	<	}
345	<	});
391	<	try {
392	<	t.start();
393	<	Thread.sleep(SHORT_DELAY_MS);
394	<	assertTrue(lock.isLocked());
395	<	t.join();
396	<	assertFalse(lock.isLocked());
397	<	} catch (Exception e){
398	<	unexpectedException();
399	<	}
328	>	public void testIsLocked() throws InterruptedException {
329	>	final ReentrantLock lock = new ReentrantLock();
330	>	lock.lock();
331	>	assertTrue(lock.isLocked());
332	>	lock.unlock();
333	>	assertFalse(lock.isLocked());
334	>	Thread t = new Thread(new CheckedRunnable() {
335	>	public void realRun() throws InterruptedException {
336	>	lock.lock();
337	>	delay(SMALL_DELAY_MS);
338	>	lock.unlock();
339	>	}});
340	>
341	>	t.start();
342	>	delay(SHORT_DELAY_MS);
343	>	assertTrue(lock.isLocked());
344	>	t.join();
345	>	assertFalse(lock.isLocked());
346		}
347
348
349		/**
350		* lockInterruptibly is interruptible.
351		*/
352	<	public void testLockInterruptibly1() {
353	<	final ReentrantLock lock = new ReentrantLock();
354	<	lock.lock();
355	<	Thread t = new Thread(new InterruptedLockRunnable(lock));
356	<	try {
357	<	t.start();
358	<	Thread.sleep(SHORT_DELAY_MS);
359	<	t.interrupt();
360	<	Thread.sleep(SHORT_DELAY_MS);
361	<	lock.unlock();
416	<	t.join();
417	<	} catch (Exception e){
418	<	unexpectedException();
419	<	}
352	>	public void testLockInterruptibly1() throws InterruptedException {
353	>	final ReentrantLock lock = new ReentrantLock();
354	>	lock.lock();
355	>	Thread t = new Thread(new InterruptedLockRunnable(lock));
356	>	t.start();
357	>	delay(SHORT_DELAY_MS);
358	>	t.interrupt();
359	>	delay(SHORT_DELAY_MS);
360	>	lock.unlock();
361	>	t.join();
362		}
363
364		/**
365		* lockInterruptibly succeeds when unlocked, else is interruptible
366		*/
367	<	public void testLockInterruptibly2() {
368	<	final ReentrantLock lock = new ReentrantLock();
369	<	try {
370	<	lock.lockInterruptibly();
371	<	} catch (Exception e) {
372	<	unexpectedException();
373	<	}
374	<	Thread t = new Thread(new InterruptedLockRunnable(lock));
375	<	try {
376	<	t.start();
435	<	t.interrupt();
436	<	assertTrue(lock.isLocked());
437	<	assertTrue(lock.isHeldByCurrentThread());
438	<	t.join();
439	<	} catch (Exception e){
440	<	unexpectedException();
441	<	}
367	>	public void testLockInterruptibly2() throws InterruptedException {
368	>	final ReentrantLock lock = new ReentrantLock();
369	>	lock.lockInterruptibly();
370	>	Thread t = new Thread(new InterruptedLockRunnable(lock));
371	>	t.start();
372	>	delay(SHORT_DELAY_MS);
373	>	t.interrupt();
374	>	assertTrue(lock.isLocked());
375	>	assertTrue(lock.isHeldByCurrentThread());
376	>	t.join();
377		}
378
379		/**
380		* Calling await without holding lock throws IllegalMonitorStateException
381		*/
382	<	public void testAwait_IllegalMonitor() {
383	<	final ReentrantLock lock = new ReentrantLock();
382	>	public void testAwait_IllegalMonitor() throws InterruptedException {
383	>	final ReentrantLock lock = new ReentrantLock();
384		final Condition c = lock.newCondition();
385		try {
386		c.await();
387		shouldThrow();
388	<	}
454	<	catch (IllegalMonitorStateException success) {
455	<	}
456	<	catch (Exception ex) {
457	<	unexpectedException();
458	<	}
388	>	} catch (IllegalMonitorStateException success) {}
389		}
390
391		/**
392		* Calling signal without holding lock throws IllegalMonitorStateException
393		*/
394		public void testSignal_IllegalMonitor() {
395	<	final ReentrantLock lock = new ReentrantLock();
395	>	final ReentrantLock lock = new ReentrantLock();
396		final Condition c = lock.newCondition();
397		try {
398		c.signal();
399		shouldThrow();
400	<	}
471	<	catch (IllegalMonitorStateException success) {
472	<	}
473	<	catch (Exception ex) {
474	<	unexpectedException();
475	<	}
400	>	} catch (IllegalMonitorStateException success) {}
401		}
402
403		/**
404		* awaitNanos without a signal times out
405		*/
406	<	public void testAwaitNanos_Timeout() {
407	<	final ReentrantLock lock = new ReentrantLock();
406	>	public void testAwaitNanos_Timeout() throws InterruptedException {
407	>	final ReentrantLock lock = new ReentrantLock();
408		final Condition c = lock.newCondition();
409	<	try {
410	<	lock.lock();
411	<	long t = c.awaitNanos(100);
412	<	assertTrue(t <= 0);
488	<	lock.unlock();
489	<	}
490	<	catch (Exception ex) {
491	<	unexpectedException();
492	<	}
409	>	lock.lock();
410	>	long t = c.awaitNanos(100);
411	>	assertTrue(t <= 0);
412	>	lock.unlock();
413		}
414
415		/**
416	<	*  timed await without a signal times out
416	>	* timed await without a signal times out
417		*/
418	<	public void testAwait_Timeout() {
419	<	final ReentrantLock lock = new ReentrantLock();
418	>	public void testAwait_Timeout() throws InterruptedException {
419	>	final ReentrantLock lock = new ReentrantLock();
420		final Condition c = lock.newCondition();
421	<	try {
422	<	lock.lock();
423	<	c.await(SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
504	<	lock.unlock();
505	<	}
506	<	catch (Exception ex) {
507	<	unexpectedException();
508	<	}
421	>	lock.lock();
422	>	assertFalse(c.await(SHORT_DELAY_MS, MILLISECONDS));
423	>	lock.unlock();
424		}
425
426		/**
427		* awaitUntil without a signal times out
428		*/
429	<	public void testAwaitUntil_Timeout() {
430	<	final ReentrantLock lock = new ReentrantLock();
429	>	public void testAwaitUntil_Timeout() throws InterruptedException {
430	>	final ReentrantLock lock = new ReentrantLock();
431		final Condition c = lock.newCondition();
432	<	try {
433	<	lock.lock();
434	<	java.util.Date d = new java.util.Date();
435	<	c.awaitUntil(new java.util.Date(d.getTime() + 10));
521	<	lock.unlock();
522	<	}
523	<	catch (Exception ex) {
524	<	unexpectedException();
525	<	}
432	>	lock.lock();
433	>	java.util.Date d = new java.util.Date();
434	>	assertFalse(c.awaitUntil(new java.util.Date(d.getTime() + 10)));
435	>	lock.unlock();
436		}
437
438		/**
439		* await returns when signalled
440		*/
441	<	public void testAwait() {
442	<	final ReentrantLock lock = new ReentrantLock();
441	>	public void testAwait() throws InterruptedException {
442	>	final ReentrantLock lock = new ReentrantLock();
443		final Condition c = lock.newCondition();
444	<	Thread t = new Thread(new Runnable() {
445	<	public void run() {
446	<	try {
447	<	lock.lock();
448	<	c.await();
449	<	lock.unlock();
540	<	}
541	<	catch (InterruptedException e) {
542	<	threadUnexpectedException();
543	<	}
544	<	}
545	<	});
444	>	Thread t = new Thread(new CheckedRunnable() {
445	>	public void realRun() throws InterruptedException {
446	>	lock.lock();
447	>	c.await();
448	>	lock.unlock();
449	>	}});
450
451	<	try {
452	<	t.start();
453	<	Thread.sleep(SHORT_DELAY_MS);
454	<	lock.lock();
455	<	c.signal();
456	<	lock.unlock();
457	<	t.join(SHORT_DELAY_MS);
554	<	assertFalse(t.isAlive());
555	<	}
556	<	catch (Exception ex) {
557	<	unexpectedException();
558	<	}
451	>	t.start();
452	>	delay(SHORT_DELAY_MS);
453	>	lock.lock();
454	>	c.signal();
455	>	lock.unlock();
456	>	t.join(SHORT_DELAY_MS);
457	>	assertFalse(t.isAlive());
458		}
459
460		/**
461		* hasWaiters throws NPE if null
462		*/
463		public void testHasWaitersNPE() {
464	<	final ReentrantLock lock = new ReentrantLock();
464	>	final ReentrantLock lock = new ReentrantLock();
465		try {
466		lock.hasWaiters(null);
467		shouldThrow();
468	<	} catch (NullPointerException success) {
570	<	} catch (Exception ex) {
571	<	unexpectedException();
572	<	}
468	>	} catch (NullPointerException success) {}
469		}
470
471		/**
472		* getWaitQueueLength throws NPE if null
473		*/
474		public void testGetWaitQueueLengthNPE() {
475	<	final ReentrantLock lock = new ReentrantLock();
475	>	final ReentrantLock lock = new ReentrantLock();
476		try {
477		lock.getWaitQueueLength(null);
478		shouldThrow();
479	<	} catch (NullPointerException success) {
584	<	} catch (Exception ex) {
585	<	unexpectedException();
586	<	}
479	>	} catch (NullPointerException success) {}
480		}
481
482
#	Line 591 | Line 484 | public class ReentrantLockTest extends J
484		* getWaitingThreads throws NPE if null
485		*/
486		public void testGetWaitingThreadsNPE() {
487	<	final PublicReentrantLock lock = new PublicReentrantLock();
487	>	final PublicReentrantLock lock = new PublicReentrantLock();
488		try {
489		lock.getWaitingThreads(null);
490		shouldThrow();
491	<	} catch (NullPointerException success) {
599	<	} catch (Exception ex) {
600	<	unexpectedException();
601	<	}
491	>	} catch (NullPointerException success) {}
492		}
493
494
#	Line 606 | Line 496 | public class ReentrantLockTest extends J
496		* hasWaiters throws IAE if not owned
497		*/
498		public void testHasWaitersIAE() {
499	<	final ReentrantLock lock = new ReentrantLock();
500	<	final Condition c = (lock.newCondition());
501	<	final ReentrantLock lock2 = new ReentrantLock();
499	>	final ReentrantLock lock = new ReentrantLock();
500	>	final Condition c = lock.newCondition();
501	>	final ReentrantLock lock2 = new ReentrantLock();
502		try {
503		lock2.hasWaiters(c);
504		shouldThrow();
505	<	} catch (IllegalArgumentException success) {
616	<	} catch (Exception ex) {
617	<	unexpectedException();
618	<	}
505	>	} catch (IllegalArgumentException success) {}
506		}
507
508		/**
509		* hasWaiters throws IMSE if not locked
510		*/
511		public void testHasWaitersIMSE() {
512	<	final ReentrantLock lock = new ReentrantLock();
513	<	final Condition c = (lock.newCondition());
512	>	final ReentrantLock lock = new ReentrantLock();
513	>	final Condition c = lock.newCondition();
514		try {
515		lock.hasWaiters(c);
516		shouldThrow();
517	<	} catch (IllegalMonitorStateException success) {
631	<	} catch (Exception ex) {
632	<	unexpectedException();
633	<	}
517	>	} catch (IllegalMonitorStateException success) {}
518		}
519
520
#	Line 638 | Line 522 | public class ReentrantLockTest extends J
522		* getWaitQueueLength throws IAE if not owned
523		*/
524		public void testGetWaitQueueLengthIAE() {
525	<	final ReentrantLock lock = new ReentrantLock();
526	<	final Condition c = (lock.newCondition());
527	<	final ReentrantLock lock2 = new ReentrantLock();
525	>	final ReentrantLock lock = new ReentrantLock();
526	>	final Condition c = lock.newCondition();
527	>	final ReentrantLock lock2 = new ReentrantLock();
528		try {
529		lock2.getWaitQueueLength(c);
530		shouldThrow();
531	<	} catch (IllegalArgumentException success) {
648	<	} catch (Exception ex) {
649	<	unexpectedException();
650	<	}
531	>	} catch (IllegalArgumentException success) {}
532		}
533
534		/**
535		* getWaitQueueLength throws IMSE if not locked
536		*/
537		public void testGetWaitQueueLengthIMSE() {
538	<	final ReentrantLock lock = new ReentrantLock();
539	<	final Condition c = (lock.newCondition());
538	>	final ReentrantLock lock = new ReentrantLock();
539	>	final Condition c = lock.newCondition();
540		try {
541		lock.getWaitQueueLength(c);
542		shouldThrow();
543	<	} catch (IllegalMonitorStateException success) {
663	<	} catch (Exception ex) {
664	<	unexpectedException();
665	<	}
543	>	} catch (IllegalMonitorStateException success) {}
544		}
545
546
#	Line 670 | Line 548 | public class ReentrantLockTest extends J
548		* getWaitingThreads throws IAE if not owned
549		*/
550		public void testGetWaitingThreadsIAE() {
551	<	final PublicReentrantLock lock = new PublicReentrantLock();
552	<	final Condition c = (lock.newCondition());
553	<	final PublicReentrantLock lock2 = new PublicReentrantLock();
551	>	final PublicReentrantLock lock = new PublicReentrantLock();
552	>	final Condition c = lock.newCondition();
553	>	final PublicReentrantLock lock2 = new PublicReentrantLock();
554		try {
555		lock2.getWaitingThreads(c);
556		shouldThrow();
557	<	} catch (IllegalArgumentException success) {
680	<	} catch (Exception ex) {
681	<	unexpectedException();
682	<	}
557	>	} catch (IllegalArgumentException success) {}
558		}
559
560		/**
561		* getWaitingThreads throws IMSE if not locked
562		*/
563		public void testGetWaitingThreadsIMSE() {
564	<	final PublicReentrantLock lock = new PublicReentrantLock();
565	<	final Condition c = (lock.newCondition());
564	>	final PublicReentrantLock lock = new PublicReentrantLock();
565	>	final Condition c = lock.newCondition();
566		try {
567		lock.getWaitingThreads(c);
568		shouldThrow();
569	<	} catch (IllegalMonitorStateException success) {
695	<	} catch (Exception ex) {
696	<	unexpectedException();
697	<	}
569	>	} catch (IllegalMonitorStateException success) {}
570		}
571
572
701	–
573		/**
574		* hasWaiters returns true when a thread is waiting, else false
575		*/
576	<	public void testHasWaiters() {
577	<	final ReentrantLock lock = new ReentrantLock();
576	>	public void testHasWaiters() throws InterruptedException {
577	>	final ReentrantLock lock = new ReentrantLock();
578		final Condition c = lock.newCondition();
579	<	Thread t = new Thread(new Runnable() {
580	<	public void run() {
581	<	try {
582	<	lock.lock();
583	<	threadAssertFalse(lock.hasWaiters(c));
584	<	threadAssertEquals(0, lock.getWaitQueueLength(c));
585	<	c.await();
586	<	lock.unlock();
716	<	}
717	<	catch (InterruptedException e) {
718	<	threadUnexpectedException();
719	<	}
720	<	}
721	<	});
579	>	Thread t = new Thread(new CheckedRunnable() {
580	>	public void realRun() throws InterruptedException {
581	>	lock.lock();
582	>	assertFalse(lock.hasWaiters(c));
583	>	assertEquals(0, lock.getWaitQueueLength(c));
584	>	c.await();
585	>	lock.unlock();
586	>	}});
587
588	<	try {
589	<	t.start();
590	<	Thread.sleep(SHORT_DELAY_MS);
591	<	lock.lock();
592	<	assertTrue(lock.hasWaiters(c));
593	<	assertEquals(1, lock.getWaitQueueLength(c));
594	<	c.signal();
595	<	lock.unlock();
596	<	Thread.sleep(SHORT_DELAY_MS);
597	<	lock.lock();
598	<	assertFalse(lock.hasWaiters(c));
599	<	assertEquals(0, lock.getWaitQueueLength(c));
600	<	lock.unlock();
601	<	t.join(SHORT_DELAY_MS);
737	<	assertFalse(t.isAlive());
738	<	}
739	<	catch (Exception ex) {
740	<	unexpectedException();
741	<	}
588	>	t.start();
589	>	delay(SHORT_DELAY_MS);
590	>	lock.lock();
591	>	assertTrue(lock.hasWaiters(c));
592	>	assertEquals(1, lock.getWaitQueueLength(c));
593	>	c.signal();
594	>	lock.unlock();
595	>	delay(SHORT_DELAY_MS);
596	>	lock.lock();
597	>	assertFalse(lock.hasWaiters(c));
598	>	assertEquals(0, lock.getWaitQueueLength(c));
599	>	lock.unlock();
600	>	t.join(SHORT_DELAY_MS);
601	>	assertFalse(t.isAlive());
602		}
603
604		/**
605		* getWaitQueueLength returns number of waiting threads
606		*/
607	<	public void testGetWaitQueueLength() {
608	<	final ReentrantLock lock = new ReentrantLock();
607	>	public void testGetWaitQueueLength() throws InterruptedException {
608	>	final ReentrantLock lock = new ReentrantLock();
609		final Condition c = lock.newCondition();
610	<	Thread t1 = new Thread(new Runnable() {
611	<	public void run() {
612	<	try {
613	<	lock.lock();
614	<	threadAssertFalse(lock.hasWaiters(c));
615	<	threadAssertEquals(0, lock.getWaitQueueLength(c));
616	<	c.await();
617	<	lock.unlock();
758	<	}
759	<	catch (InterruptedException e) {
760	<	threadUnexpectedException();
761	<	}
762	<	}
763	<	});
764	<
765	<	Thread t2 = new Thread(new Runnable() {
766	<	public void run() {
767	<	try {
768	<	lock.lock();
769	<	threadAssertTrue(lock.hasWaiters(c));
770	<	threadAssertEquals(1, lock.getWaitQueueLength(c));
771	<	c.await();
772	<	lock.unlock();
773	<	}
774	<	catch (InterruptedException e) {
775	<	threadUnexpectedException();
776	<	}
777	<	}
778	<	});
610	>	Thread t1 = new Thread(new CheckedRunnable() {
611	>	public void realRun() throws InterruptedException {
612	>	lock.lock();
613	>	assertFalse(lock.hasWaiters(c));
614	>	assertEquals(0, lock.getWaitQueueLength(c));
615	>	c.await();
616	>	lock.unlock();
617	>	}});
618
619	<	try {
620	<	t1.start();
621	<	Thread.sleep(SHORT_DELAY_MS);
622	<	t2.start();
623	<	Thread.sleep(SHORT_DELAY_MS);
624	<	lock.lock();
625	<	assertTrue(lock.hasWaiters(c));
626	<	assertEquals(2, lock.getWaitQueueLength(c));
627	<	c.signalAll();
628	<	lock.unlock();
629	<	Thread.sleep(SHORT_DELAY_MS);
630	<	lock.lock();
631	<	assertFalse(lock.hasWaiters(c));
632	<	assertEquals(0, lock.getWaitQueueLength(c));
633	<	lock.unlock();
634	<	t1.join(SHORT_DELAY_MS);
635	<	t2.join(SHORT_DELAY_MS);
636	<	assertFalse(t1.isAlive());
637	<	assertFalse(t2.isAlive());
638	<	}
639	<	catch (Exception ex) {
640	<	unexpectedException();
641	<	}
619	>	Thread t2 = new Thread(new CheckedRunnable() {
620	>	public void realRun() throws InterruptedException {
621	>	lock.lock();
622	>	assertTrue(lock.hasWaiters(c));
623	>	assertEquals(1, lock.getWaitQueueLength(c));
624	>	c.await();
625	>	lock.unlock();
626	>	}});
627	>
628	>	t1.start();
629	>	delay(SHORT_DELAY_MS);
630	>	t2.start();
631	>	delay(SHORT_DELAY_MS);
632	>	lock.lock();
633	>	assertTrue(lock.hasWaiters(c));
634	>	assertEquals(2, lock.getWaitQueueLength(c));
635	>	c.signalAll();
636	>	lock.unlock();
637	>	delay(SHORT_DELAY_MS);
638	>	lock.lock();
639	>	assertFalse(lock.hasWaiters(c));
640	>	assertEquals(0, lock.getWaitQueueLength(c));
641	>	lock.unlock();
642	>	t1.join(SHORT_DELAY_MS);
643	>	t2.join(SHORT_DELAY_MS);
644	>	assertFalse(t1.isAlive());
645	>	assertFalse(t2.isAlive());
646		}
647
648		/**
649		* getWaitingThreads returns only and all waiting threads
650		*/
651	<	public void testGetWaitingThreads() {
652	<	final PublicReentrantLock lock = new PublicReentrantLock();
651	>	public void testGetWaitingThreads() throws InterruptedException {
652	>	final PublicReentrantLock lock = new PublicReentrantLock();
653		final Condition c = lock.newCondition();
654	<	Thread t1 = new Thread(new Runnable() {
655	<	public void run() {
656	<	try {
657	<	lock.lock();
658	<	threadAssertTrue(lock.getWaitingThreads(c).isEmpty());
659	<	c.await();
660	<	lock.unlock();
818	<	}
819	<	catch (InterruptedException e) {
820	<	threadUnexpectedException();
821	<	}
822	<	}
823	<	});
824	<
825	<	Thread t2 = new Thread(new Runnable() {
826	<	public void run() {
827	<	try {
828	<	lock.lock();
829	<	threadAssertFalse(lock.getWaitingThreads(c).isEmpty());
830	<	c.await();
831	<	lock.unlock();
832	<	}
833	<	catch (InterruptedException e) {
834	<	threadUnexpectedException();
835	<	}
836	<	}
837	<	});
654	>	Thread t1 = new Thread(new CheckedRunnable() {
655	>	public void realRun() throws InterruptedException {
656	>	lock.lock();
657	>	assertTrue(lock.getWaitingThreads(c).isEmpty());
658	>	c.await();
659	>	lock.unlock();
660	>	}});
661
662	<	try {
663	<	lock.lock();
664	<	assertTrue(lock.getWaitingThreads(c).isEmpty());
665	<	lock.unlock();
666	<	t1.start();
667	<	Thread.sleep(SHORT_DELAY_MS);
668	<	t2.start();
669	<	Thread.sleep(SHORT_DELAY_MS);
670	<	lock.lock();
671	<	assertTrue(lock.hasWaiters(c));
672	<	assertTrue(lock.getWaitingThreads(c).contains(t1));
673	<	assertTrue(lock.getWaitingThreads(c).contains(t2));
674	<	c.signalAll();
675	<	lock.unlock();
676	<	Thread.sleep(SHORT_DELAY_MS);
677	<	lock.lock();
678	<	assertFalse(lock.hasWaiters(c));
679	<	assertTrue(lock.getWaitingThreads(c).isEmpty());
680	<	lock.unlock();
681	<	t1.join(SHORT_DELAY_MS);
682	<	t2.join(SHORT_DELAY_MS);
683	<	assertFalse(t1.isAlive());
684	<	assertFalse(t2.isAlive());
685	<	}
686	<	catch (Exception ex) {
687	<	unexpectedException();
688	<	}
662	>	Thread t2 = new Thread(new CheckedRunnable() {
663	>	public void realRun() throws InterruptedException {
664	>	lock.lock();
665	>	assertFalse(lock.getWaitingThreads(c).isEmpty());
666	>	c.await();
667	>	lock.unlock();
668	>	}});
669	>
670	>	lock.lock();
671	>	assertTrue(lock.getWaitingThreads(c).isEmpty());
672	>	lock.unlock();
673	>	t1.start();
674	>	delay(SHORT_DELAY_MS);
675	>	t2.start();
676	>	delay(SHORT_DELAY_MS);
677	>	lock.lock();
678	>	assertTrue(lock.hasWaiters(c));
679	>	assertTrue(lock.getWaitingThreads(c).contains(t1));
680	>	assertTrue(lock.getWaitingThreads(c).contains(t2));
681	>	c.signalAll();
682	>	lock.unlock();
683	>	delay(SHORT_DELAY_MS);
684	>	lock.lock();
685	>	assertFalse(lock.hasWaiters(c));
686	>	assertTrue(lock.getWaitingThreads(c).isEmpty());
687	>	lock.unlock();
688	>	t1.join(SHORT_DELAY_MS);
689	>	t2.join(SHORT_DELAY_MS);
690	>	assertFalse(t1.isAlive());
691	>	assertFalse(t2.isAlive());
692		}
693
694		/** A helper class for uninterruptible wait tests */
695	<	class UninterruptableThread extends Thread {
695	>	class UninterruptibleThread extends Thread {
696		private ReentrantLock lock;
697		private Condition c;
698
#	Line 874 | Line 700 | public class ReentrantLockTest extends J
700		public volatile boolean interrupted = false;
701		public volatile boolean lockStarted = false;
702
703	<	public UninterruptableThread(ReentrantLock lock, Condition c) {
703	>	public UninterruptibleThread(ReentrantLock lock, Condition c) {
704		this.lock = lock;
705		this.c = c;
706		}
#	Line 895 | Line 721 | public class ReentrantLockTest extends J
721		/**
722		* awaitUninterruptibly doesn't abort on interrupt
723		*/
724	<	public void testAwaitUninterruptibly() {
724	>	public void testAwaitUninterruptibly() throws InterruptedException {
725		final ReentrantLock lock = new ReentrantLock();
726		final Condition c = lock.newCondition();
727	<	UninterruptableThread thread = new UninterruptableThread(lock, c);
902	<
903	<	try {
904	<	thread.start();
727	>	UninterruptibleThread thread = new UninterruptibleThread(lock, c);
728
729	<	while (!thread.lockStarted) {
907	<	Thread.sleep(100);
908	<	}
729	>	thread.start();
730
731	<	lock.lock();
732	<	try {
733	<	thread.interrupt();
913	<	thread.canAwake = true;
914	<	c.signal();
915	<	} finally {
916	<	lock.unlock();
917	<	}
731	>	while (!thread.lockStarted) {
732	>	delay(100);
733	>	}
734
735	<	thread.join();
736	<	assertTrue(thread.interrupted);
737	<	assertFalse(thread.isAlive());
738	<	} catch (Exception ex) {
739	<	unexpectedException();
735	>	lock.lock();
736	>	try {
737	>	thread.interrupt();
738	>	thread.canAwake = true;
739	>	c.signal();
740	>	} finally {
741	>	lock.unlock();
742		}
743	+
744	+	thread.join();
745	+	assertTrue(thread.interrupted);
746	+	assertFalse(thread.isAlive());
747		}
748
749		/**
750		* await is interruptible
751		*/
752	<	public void testAwait_Interrupt() {
753	<	final ReentrantLock lock = new ReentrantLock();
752	>	public void testAwait_Interrupt() throws InterruptedException {
753	>	final ReentrantLock lock = new ReentrantLock();
754		final Condition c = lock.newCondition();
755	<	Thread t = new Thread(new Runnable() {
756	<	public void run() {
757	<	try {
758	<	lock.lock();
759	<	c.await();
760	<	lock.unlock();
761	<	threadShouldThrow();
762	<	}
763	<	catch (InterruptedException success) {
764	<	}
765	<	}
944	<	});
945	<
946	<	try {
947	<	t.start();
948	<	Thread.sleep(SHORT_DELAY_MS);
949	<	t.interrupt();
950	<	t.join(SHORT_DELAY_MS);
951	<	assertFalse(t.isAlive());
952	<	}
953	<	catch (Exception ex) {
954	<	unexpectedException();
955	<	}
755	>	Thread t = new Thread(new CheckedInterruptedRunnable() {
756	>	public void realRun() throws InterruptedException {
757	>	lock.lock();
758	>	c.await();
759	>	}});
760	>
761	>	t.start();
762	>	delay(SHORT_DELAY_MS);
763	>	t.interrupt();
764	>	t.join(SHORT_DELAY_MS);
765	>	assertFalse(t.isAlive());
766		}
767
768		/**
769		* awaitNanos is interruptible
770		*/
771	<	public void testAwaitNanos_Interrupt() {
772	<	final ReentrantLock lock = new ReentrantLock();
771	>	public void testAwaitNanos_Interrupt() throws InterruptedException {
772	>	final ReentrantLock lock = new ReentrantLock();
773		final Condition c = lock.newCondition();
774	<	Thread t = new Thread(new Runnable() {
775	<	public void run() {
776	<	try {
777	<	lock.lock();
778	<	c.awaitNanos(1000 * 1000 * 1000); // 1 sec
779	<	lock.unlock();
780	<	threadShouldThrow();
781	<	}
782	<	catch (InterruptedException success) {
783	<	}
784	<	}
975	<	});
976	<
977	<	try {
978	<	t.start();
979	<	Thread.sleep(SHORT_DELAY_MS);
980	<	t.interrupt();
981	<	t.join(SHORT_DELAY_MS);
982	<	assertFalse(t.isAlive());
983	<	}
984	<	catch (Exception ex) {
985	<	unexpectedException();
986	<	}
774	>	Thread t = new Thread(new CheckedInterruptedRunnable() {
775	>	public void realRun() throws InterruptedException {
776	>	lock.lock();
777	>	c.awaitNanos(MILLISECONDS.toNanos(LONG_DELAY_MS));
778	>	}});
779	>
780	>	t.start();
781	>	delay(SHORT_DELAY_MS);
782	>	t.interrupt();
783	>	t.join(SHORT_DELAY_MS);
784	>	assertFalse(t.isAlive());
785		}
786
787		/**
788		* awaitUntil is interruptible
789		*/
790	<	public void testAwaitUntil_Interrupt() {
791	<	final ReentrantLock lock = new ReentrantLock();
790	>	public void testAwaitUntil_Interrupt() throws InterruptedException {
791	>	final ReentrantLock lock = new ReentrantLock();
792		final Condition c = lock.newCondition();
793	<	Thread t = new Thread(new Runnable() {
794	<	public void run() {
795	<	try {
796	<	lock.lock();
797	<	java.util.Date d = new java.util.Date();
798	<	c.awaitUntil(new java.util.Date(d.getTime() + 10000));
799	<	lock.unlock();
800	<	threadShouldThrow();
801	<	}
802	<	catch (InterruptedException success) {
803	<	}
804	<	}
1007	<	});
1008	<
1009	<	try {
1010	<	t.start();
1011	<	Thread.sleep(SHORT_DELAY_MS);
1012	<	t.interrupt();
1013	<	t.join(SHORT_DELAY_MS);
1014	<	assertFalse(t.isAlive());
1015	<	}
1016	<	catch (Exception ex) {
1017	<	unexpectedException();
1018	<	}
793	>	Thread t = new Thread(new CheckedInterruptedRunnable() {
794	>	public void realRun() throws InterruptedException {
795	>	lock.lock();
796	>	java.util.Date d = new java.util.Date();
797	>	c.awaitUntil(new java.util.Date(d.getTime() + 10000));
798	>	}});
799	>
800	>	t.start();
801	>	delay(SHORT_DELAY_MS);
802	>	t.interrupt();
803	>	t.join(SHORT_DELAY_MS);
804	>	assertFalse(t.isAlive());
805		}
806
807		/**
808		* signalAll wakes up all threads
809		*/
810	<	public void testSignalAll() {
811	<	final ReentrantLock lock = new ReentrantLock();
810	>	public void testSignalAll() throws InterruptedException {
811	>	final ReentrantLock lock = new ReentrantLock();
812		final Condition c = lock.newCondition();
813	<	Thread t1 = new Thread(new Runnable() {
814	<	public void run() {
815	<	try {
816	<	lock.lock();
817	<	c.await();
818	<	lock.unlock();
1033	<	}
1034	<	catch (InterruptedException e) {
1035	<	threadUnexpectedException();
1036	<	}
1037	<	}
1038	<	});
1039	<
1040	<	Thread t2 = new Thread(new Runnable() {
1041	<	public void run() {
1042	<	try {
1043	<	lock.lock();
1044	<	c.await();
1045	<	lock.unlock();
1046	<	}
1047	<	catch (InterruptedException e) {
1048	<	threadUnexpectedException();
1049	<	}
1050	<	}
1051	<	});
813	>	Thread t1 = new Thread(new CheckedRunnable() {
814	>	public void realRun() throws InterruptedException {
815	>	lock.lock();
816	>	c.await();
817	>	lock.unlock();
818	>	}});
819
820	<	try {
821	<	t1.start();
822	<	t2.start();
823	<	Thread.sleep(SHORT_DELAY_MS);
824	<	lock.lock();
825	<	c.signalAll();
826	<	lock.unlock();
827	<	t1.join(SHORT_DELAY_MS);
828	<	t2.join(SHORT_DELAY_MS);
829	<	assertFalse(t1.isAlive());
830	<	assertFalse(t2.isAlive());
831	<	}
832	<	catch (Exception ex) {
833	<	unexpectedException();
834	<	}
820	>	Thread t2 = new Thread(new CheckedRunnable() {
821	>	public void realRun() throws InterruptedException {
822	>	lock.lock();
823	>	c.await();
824	>	lock.unlock();
825	>	}});
826	>
827	>	t1.start();
828	>	t2.start();
829	>	delay(SHORT_DELAY_MS);
830	>	lock.lock();
831	>	c.signalAll();
832	>	lock.unlock();
833	>	t1.join(SHORT_DELAY_MS);
834	>	t2.join(SHORT_DELAY_MS);
835	>	assertFalse(t1.isAlive());
836	>	assertFalse(t2.isAlive());
837		}
838
839		/**
840		* await after multiple reentrant locking preserves lock count
841		*/
842	<	public void testAwaitLockCount() {
843	<	final ReentrantLock lock = new ReentrantLock();
842	>	public void testAwaitLockCount() throws InterruptedException {
843	>	final ReentrantLock lock = new ReentrantLock();
844		final Condition c = lock.newCondition();
845	<	Thread t1 = new Thread(new Runnable() {
846	<	public void run() {
847	<	try {
848	<	lock.lock();
849	<	threadAssertEquals(1, lock.getHoldCount());
850	<	c.await();
851	<	threadAssertEquals(1, lock.getHoldCount());
852	<	lock.unlock();
1084	<	}
1085	<	catch (InterruptedException e) {
1086	<	threadUnexpectedException();
1087	<	}
1088	<	}
1089	<	});
1090	<
1091	<	Thread t2 = new Thread(new Runnable() {
1092	<	public void run() {
1093	<	try {
1094	<	lock.lock();
1095	<	lock.lock();
1096	<	threadAssertEquals(2, lock.getHoldCount());
1097	<	c.await();
1098	<	threadAssertEquals(2, lock.getHoldCount());
1099	<	lock.unlock();
1100	<	lock.unlock();
1101	<	}
1102	<	catch (InterruptedException e) {
1103	<	threadUnexpectedException();
1104	<	}
1105	<	}
1106	<	});
845	>	Thread t1 = new Thread(new CheckedRunnable() {
846	>	public void realRun() throws InterruptedException {
847	>	lock.lock();
848	>	assertEquals(1, lock.getHoldCount());
849	>	c.await();
850	>	assertEquals(1, lock.getHoldCount());
851	>	lock.unlock();
852	>	}});
853
854	<	try {
855	<	t1.start();
856	<	t2.start();
857	<	Thread.sleep(SHORT_DELAY_MS);
858	<	lock.lock();
859	<	c.signalAll();
860	<	lock.unlock();
861	<	t1.join(SHORT_DELAY_MS);
862	<	t2.join(SHORT_DELAY_MS);
863	<	assertFalse(t1.isAlive());
864	<	assertFalse(t2.isAlive());
865	<	}
866	<	catch (Exception ex) {
867	<	unexpectedException();
868	<	}
854	>	Thread t2 = new Thread(new CheckedRunnable() {
855	>	public void realRun() throws InterruptedException {
856	>	lock.lock();
857	>	lock.lock();
858	>	assertEquals(2, lock.getHoldCount());
859	>	c.await();
860	>	assertEquals(2, lock.getHoldCount());
861	>	lock.unlock();
862	>	lock.unlock();
863	>	}});
864	>
865	>	t1.start();
866	>	t2.start();
867	>	delay(SHORT_DELAY_MS);
868	>	lock.lock();
869	>	c.signalAll();
870	>	lock.unlock();
871	>	t1.join(SHORT_DELAY_MS);
872	>	t2.join(SHORT_DELAY_MS);
873	>	assertFalse(t1.isAlive());
874	>	assertFalse(t2.isAlive());
875		}
876
877		/**
878		* A serialized lock deserializes as unlocked
879		*/
880	<	public void testSerialization() {
880	>	public void testSerialization() throws Exception {
881		ReentrantLock l = new ReentrantLock();
882		l.lock();
883		l.unlock();
884
885	<	try {
886	<	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
887	<	ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
888	<	out.writeObject(l);
889	<	out.close();
890	<
891	<	ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
892	<	ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
893	<	ReentrantLock r = (ReentrantLock) in.readObject();
894	<	r.lock();
895	<	r.unlock();
896	<	} catch (Exception e){
897	<	e.printStackTrace();
1146	<	unexpectedException();
1147	<	}
885	>	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
886	>	ObjectOutputStream out =
887	>	new ObjectOutputStream(new BufferedOutputStream(bout));
888	>	out.writeObject(l);
889	>	out.close();
890	>
891	>	ByteArrayInputStream bin =
892	>	new ByteArrayInputStream(bout.toByteArray());
893	>	ObjectInputStream in =
894	>	new ObjectInputStream(new BufferedInputStream(bin));
895	>	ReentrantLock r = (ReentrantLock) in.readObject();
896	>	r.lock();
897	>	r.unlock();
898		}
899
900		/**

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