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

Comparing jsr166/src/test/tck/ReentrantReadWriteLockTest.java (file contents):
Revision 1.24 by dl, Tue Aug 2 11:34:04 2005 UTC vs.
Revision 1.32 by jsr166, Tue Nov 17 14:18:28 2009 UTC

#	Line 2 | Line 2
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.
5	>	* Other contributors include Andrew Wright, Jeffrey Hayes,
6	>	* Pat Fisher, Mike Judd.
7		*/
8
9		import junit.framework.*;
#	Line 14 | Line 14 | import java.util.*;
14
15		public class ReentrantReadWriteLockTest extends JSR166TestCase {
16		public static void main(String[] args) {
17	<	junit.textui.TestRunner.run (suite());
17	>	junit.textui.TestRunner.run (suite());
18		}
19		public static Test suite() {
20		return new TestSuite(ReentrantReadWriteLockTest.class);
#	Line 23 | Line 23 | public class ReentrantReadWriteLockTest
23		/**
24		* A runnable calling lockInterruptibly
25		*/
26	<	class InterruptibleLockRunnable implements Runnable {
26	>	class InterruptibleLockRunnable extends CheckedRunnable {
27		final ReentrantReadWriteLock lock;
28		InterruptibleLockRunnable(ReentrantReadWriteLock l) { lock = l; }
29	<	public void run() {
30	<	try {
31	<	lock.writeLock().lockInterruptibly();
32	<	} catch(InterruptedException success){}
29	>	public void realRun() throws InterruptedException {
30	>	lock.writeLock().lockInterruptibly();
31		}
32		}
33
#	Line 38 | Line 36 | public class ReentrantReadWriteLockTest
36		* A runnable calling lockInterruptibly that expects to be
37		* interrupted
38		*/
39	<	class InterruptedLockRunnable implements Runnable {
39	>	class InterruptedLockRunnable extends CheckedInterruptedRunnable {
40		final ReentrantReadWriteLock lock;
41		InterruptedLockRunnable(ReentrantReadWriteLock l) { lock = l; }
42	<	public void run() {
43	<	try {
46	<	lock.writeLock().lockInterruptibly();
47	<	threadShouldThrow();
48	<	} catch(InterruptedException success){}
42	>	public void realRun() throws InterruptedException {
43	>	lock.writeLock().lockInterruptibly();
44		}
45		}
46
#	Line 54 | Line 49 | public class ReentrantReadWriteLockTest
49		*/
50		static class PublicReentrantReadWriteLock extends ReentrantReadWriteLock {
51		PublicReentrantReadWriteLock() { super(); }
52	<	public Collection<Thread> getQueuedThreads() {
53	<	return super.getQueuedThreads();
52	>	public Collection<Thread> getQueuedThreads() {
53	>	return super.getQueuedThreads();
54		}
55	<	public Collection<Thread> getWaitingThreads(Condition c) {
56	<	return super.getWaitingThreads(c);
55	>	public Collection<Thread> getWaitingThreads(Condition c) {
56	>	return super.getWaitingThreads(c);
57		}
58		}
59
60		/**
61		* Constructor sets given fairness, and is in unlocked state
62		*/
63	<	public void testConstructor() {
63	>	public void testConstructor() {
64		ReentrantReadWriteLock rl = new ReentrantReadWriteLock();
65		assertFalse(rl.isFair());
66		assertFalse(rl.isWriteLocked());
#	Line 74 | Line 69 | public class ReentrantReadWriteLockTest
69		assertTrue(r2.isFair());
70		assertFalse(r2.isWriteLocked());
71		assertEquals(0, r2.getReadLockCount());
72	+	ReentrantReadWriteLock r3 = new ReentrantReadWriteLock(false);
73	+	assertFalse(r3.isFair());
74	+	assertFalse(r3.isWriteLocked());
75	+	assertEquals(0, r3.getReadLockCount());
76		}
77
78		/**
79		* write-locking and read-locking an unlocked lock succeed
80		*/
81	<	public void testLock() {
81	>	public void testLock() {
82		ReentrantReadWriteLock rl = new ReentrantReadWriteLock();
83		rl.writeLock().lock();
84		assertTrue(rl.isWriteLocked());
85		assertTrue(rl.isWriteLockedByCurrentThread());
86	+	assertTrue(rl.writeLock().isHeldByCurrentThread());
87		assertEquals(0, rl.getReadLockCount());
88		rl.writeLock().unlock();
89		assertFalse(rl.isWriteLocked());
90		assertFalse(rl.isWriteLockedByCurrentThread());
91	+	assertFalse(rl.writeLock().isHeldByCurrentThread());
92		assertEquals(0, rl.getReadLockCount());
93		rl.readLock().lock();
94		assertFalse(rl.isWriteLocked());
#	Line 103 | Line 104 | public class ReentrantReadWriteLockTest
104		/**
105		* locking an unlocked fair lock succeeds
106		*/
107	<	public void testFairLock() {
107	>	public void testFairLock() {
108		ReentrantReadWriteLock rl = new ReentrantReadWriteLock(true);
109		rl.writeLock().lock();
110		assertTrue(rl.isWriteLocked());
111		assertTrue(rl.isWriteLockedByCurrentThread());
112	+	assertTrue(rl.writeLock().isHeldByCurrentThread());
113		assertEquals(0, rl.getReadLockCount());
114		rl.writeLock().unlock();
115		assertFalse(rl.isWriteLocked());
116		assertFalse(rl.isWriteLockedByCurrentThread());
117	+	assertFalse(rl.writeLock().isHeldByCurrentThread());
118		assertEquals(0, rl.getReadLockCount());
119		rl.readLock().lock();
120		assertFalse(rl.isWriteLocked());
#	Line 128 | Line 131 | public class ReentrantReadWriteLockTest
131		*/
132		public void testGetWriteHoldCount() {
133		ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
134	<	for(int i = 1; i <= SIZE; i++) {
134	>	for (int i = 1; i <= SIZE; i++) {
135		lock.writeLock().lock();
136		assertEquals(i,lock.getWriteHoldCount());
137		}
138	<	for(int i = SIZE; i > 0; i--) {
138	>	for (int i = SIZE; i > 0; i--) {
139		lock.writeLock().unlock();
140		assertEquals(i-1,lock.getWriteHoldCount());
141		}
142		}
143
144		/**
145	+	* WriteLock.getHoldCount returns number of recursive holds
146	+	*/
147	+	public void testGetHoldCount() {
148	+	ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
149	+	for (int i = 1; i <= SIZE; i++) {
150	+	lock.writeLock().lock();
151	+	assertEquals(i,lock.writeLock().getHoldCount());
152	+	}
153	+	for (int i = SIZE; i > 0; i--) {
154	+	lock.writeLock().unlock();
155	+	assertEquals(i-1,lock.writeLock().getHoldCount());
156	+	}
157	+	}
158	+
159	+	/**
160		* getReadHoldCount returns number of recursive holds
161		*/
162		public void testGetReadHoldCount() {
163		ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
164	<	for(int i = 1; i <= SIZE; i++) {
164	>	for (int i = 1; i <= SIZE; i++) {
165		lock.readLock().lock();
166		assertEquals(i,lock.getReadHoldCount());
167		}
168	<	for(int i = SIZE; i > 0; i--) {
168	>	for (int i = SIZE; i > 0; i--) {
169		lock.readLock().unlock();
170		assertEquals(i-1,lock.getReadHoldCount());
171		}
172		}
173	<
173	>
174
175		/**
176		* write-unlocking an unlocked lock throws IllegalMonitorStateException
177		*/
178	<	public void testUnlock_IllegalMonitorStateException() {
178	>	public void testUnlock_IllegalMonitorStateException() {
179		ReentrantReadWriteLock rl = new ReentrantReadWriteLock();
180		try {
181		rl.writeLock().unlock();
182		shouldThrow();
183	<	} catch(IllegalMonitorStateException success){}
183	>	} catch (IllegalMonitorStateException success) {}
184		}
185
186
187		/**
188		* write-lockInterruptibly is interruptible
189		*/
190	<	public void testWriteLockInterruptibly_Interrupted() {
190	>	public void testWriteLockInterruptibly_Interrupted() throws Exception {
191		final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
192		Thread t = new Thread(new Runnable() {
193		public void run() {
#	Line 178 | Line 196 | public class ReentrantReadWriteLockTest
196		lock.writeLock().unlock();
197		lock.writeLock().lockInterruptibly();
198		lock.writeLock().unlock();
199	<	} catch(InterruptedException success){}
199	>	} catch (InterruptedException success) {}
200		}
201		});
202	<	try {
203	<	lock.writeLock().lock();
204	<	t.start();
205	<	t.interrupt();
206	<	lock.writeLock().unlock();
207	<	t.join();
208	<	} catch(Exception e){
209	<	unexpectedException();
210	<	}
193	<	}
202	>
203	>	lock.writeLock().lock();
204	>	t.start();
205	>	Thread.sleep(SHORT_DELAY_MS);
206	>	t.interrupt();
207	>	Thread.sleep(SHORT_DELAY_MS);
208	>	lock.writeLock().unlock();
209	>	t.join();
210	>	}
211
212		/**
213		* timed write-tryLock is interruptible
214		*/
215	<	public void testWriteTryLock_Interrupted() {
215	>	public void testWriteTryLock_Interrupted() throws InterruptedException {
216		final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
217		lock.writeLock().lock();
218		Thread t = new Thread(new Runnable() {
219		public void run() {
220		try {
221		lock.writeLock().tryLock(1000,TimeUnit.MILLISECONDS);
222	<	} catch(InterruptedException success){}
222	>	} catch (InterruptedException success) {}
223		}
224		});
225	<	try {
226	<	t.start();
227	<	t.interrupt();
228	<	lock.writeLock().unlock();
229	<	t.join();
213	<	} catch(Exception e){
214	<	unexpectedException();
215	<	}
225	>
226	>	t.start();
227	>	t.interrupt();
228	>	lock.writeLock().unlock();
229	>	t.join();
230		}
231
232		/**
233		* read-lockInterruptibly is interruptible
234		*/
235	<	public void testReadLockInterruptibly_Interrupted() {
235	>	public void testReadLockInterruptibly_Interrupted() throws InterruptedException {
236		final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
237		lock.writeLock().lock();
238		Thread t = new Thread(new Runnable() {
239		public void run() {
240		try {
241		lock.readLock().lockInterruptibly();
242	<	} catch(InterruptedException success){}
242	>	} catch (InterruptedException success) {}
243		}
244		});
245	<	try {
246	<	t.start();
247	<	t.interrupt();
248	<	lock.writeLock().unlock();
249	<	t.join();
250	<	} catch(Exception e){
251	<	unexpectedException();
252	<	}
239	<	}
245	>
246	>	t.start();
247	>	Thread.sleep(SHORT_DELAY_MS);
248	>	t.interrupt();
249	>	Thread.sleep(SHORT_DELAY_MS);
250	>	lock.writeLock().unlock();
251	>	t.join();
252	>	}
253
254		/**
255		* timed read-tryLock is interruptible
256		*/
257	<	public void testReadTryLock_Interrupted() {
257	>	public void testReadTryLock_Interrupted() throws InterruptedException {
258		final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
259		lock.writeLock().lock();
260		Thread t = new Thread(new Runnable() {
#	Line 249 | Line 262 | public class ReentrantReadWriteLockTest
262		try {
263		lock.readLock().tryLock(1000,TimeUnit.MILLISECONDS);
264		threadShouldThrow();
265	<	} catch(InterruptedException success){}
265	>	} catch (InterruptedException success) {}
266		}
267		});
268	<	try {
269	<	t.start();
270	<	t.interrupt();
271	<	t.join();
259	<	} catch(Exception e){
260	<	unexpectedException();
261	<	}
268	>
269	>	t.start();
270	>	t.interrupt();
271	>	t.join();
272		}
273
274	<
274	>
275		/**
276		* write-tryLock fails if locked
277		*/
278	<	public void testWriteTryLockWhenLocked() {
278	>	public void testWriteTryLockWhenLocked() throws InterruptedException {
279		final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
280		lock.writeLock().lock();
281		Thread t = new Thread(new Runnable() {
#	Line 273 | Line 283 | public class ReentrantReadWriteLockTest
283		threadAssertFalse(lock.writeLock().tryLock());
284		}
285		});
286	<	try {
287	<	t.start();
288	<	t.join();
289	<	lock.writeLock().unlock();
290	<	} catch(Exception e){
281	<	unexpectedException();
282	<	}
283	<	}
286	>
287	>	t.start();
288	>	t.join();
289	>	lock.writeLock().unlock();
290	>	}
291
292		/**
293		* read-tryLock fails if locked
294		*/
295	<	public void testReadTryLockWhenLocked() {
295	>	public void testReadTryLockWhenLocked() throws InterruptedException {
296		final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
297		lock.writeLock().lock();
298		Thread t = new Thread(new Runnable() {
#	Line 293 | Line 300 | public class ReentrantReadWriteLockTest
300		threadAssertFalse(lock.readLock().tryLock());
301		}
302		});
303	<	try {
304	<	t.start();
305	<	t.join();
306	<	lock.writeLock().unlock();
307	<	} catch(Exception e){
301	<	unexpectedException();
302	<	}
303	<	}
303	>
304	>	t.start();
305	>	t.join();
306	>	lock.writeLock().unlock();
307	>	}
308
309		/**
310		* Multiple threads can hold a read lock when not write-locked
311		*/
312	<	public void testMultipleReadLocks() {
312	>	public void testMultipleReadLocks() throws InterruptedException {
313		final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
314		lock.readLock().lock();
315		Thread t = new Thread(new Runnable() {
#	Line 314 | Line 318 | public class ReentrantReadWriteLockTest
318		lock.readLock().unlock();
319		}
320		});
321	<	try {
322	<	t.start();
323	<	t.join();
324	<	lock.readLock().unlock();
325	<	} catch(Exception e){
322	<	unexpectedException();
323	<	}
324	<	}
321	>
322	>	t.start();
323	>	t.join();
324	>	lock.readLock().unlock();
325	>	}
326
327		/**
328		* A writelock succeeds after reading threads unlock
329		*/
330	<	public void testWriteAfterMultipleReadLocks() {
330	>	public void testWriteAfterMultipleReadLocks() throws InterruptedException {
331		final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
332		lock.readLock().lock();
333		Thread t1 = new Thread(new Runnable() {
#	Line 342 | Line 343 | public class ReentrantReadWriteLockTest
343		}
344		});
345
346	<	try {
347	<	t1.start();
348	<	t2.start();
349	<	Thread.sleep(SHORT_DELAY_MS);
350	<	lock.readLock().unlock();
351	<	t1.join(MEDIUM_DELAY_MS);
352	<	t2.join(MEDIUM_DELAY_MS);
353	<	assertTrue(!t1.isAlive());
354	<	assertTrue(!t2.isAlive());
354	<
355	<	} catch(Exception e){
356	<	unexpectedException();
357	<	}
358	<	}
346	>	t1.start();
347	>	t2.start();
348	>	Thread.sleep(SHORT_DELAY_MS);
349	>	lock.readLock().unlock();
350	>	t1.join(MEDIUM_DELAY_MS);
351	>	t2.join(MEDIUM_DELAY_MS);
352	>	assertTrue(!t1.isAlive());
353	>	assertTrue(!t2.isAlive());
354	>	}
355
356		/**
357		* Readlocks succeed after a writing thread unlocks
358		*/
359	<	public void testReadAfterWriteLock() {
359	>	public void testReadAfterWriteLock() throws InterruptedException {
360		final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
361		lock.writeLock().lock();
362		Thread t1 = new Thread(new Runnable() {
#	Line 376 | Line 372 | public class ReentrantReadWriteLockTest
372		}
373		});
374
375	<	try {
376	<	t1.start();
377	<	t2.start();
378	<	Thread.sleep(SHORT_DELAY_MS);
379	<	lock.writeLock().unlock();
380	<	t1.join(MEDIUM_DELAY_MS);
381	<	t2.join(MEDIUM_DELAY_MS);
382	<	assertTrue(!t1.isAlive());
383	<	assertTrue(!t2.isAlive());
388	<
389	<	} catch(Exception e){
390	<	unexpectedException();
391	<	}
392	<	}
375	>	t1.start();
376	>	t2.start();
377	>	Thread.sleep(SHORT_DELAY_MS);
378	>	lock.writeLock().unlock();
379	>	t1.join(MEDIUM_DELAY_MS);
380	>	t2.join(MEDIUM_DELAY_MS);
381	>	assertTrue(!t1.isAlive());
382	>	assertTrue(!t2.isAlive());
383	>	}
384
385		/**
386		* Read trylock succeeds if write locked by current thread
387		*/
388	<	public void testReadHoldingWriteLock() {
388	>	public void testReadHoldingWriteLock() {
389		final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
390		lock.writeLock().lock();
391		assertTrue(lock.readLock().tryLock());
392		lock.readLock().unlock();
393		lock.writeLock().unlock();
394	<	}
394	>	}
395
396		/**
397		* Read lock succeeds if write locked by current thread even if
398		* other threads are waiting for readlock
399		*/
400	<	public void testReadHoldingWriteLock2() {
400	>	public void testReadHoldingWriteLock2() throws InterruptedException {
401		final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
402		lock.writeLock().lock();
403		Thread t1 = new Thread(new Runnable() {
#	Line 422 | Line 413 | public class ReentrantReadWriteLockTest
413		}
414		});
415
416	<	try {
417	<	t1.start();
418	<	t2.start();
419	<	lock.readLock().lock();
420	<	lock.readLock().unlock();
421	<	Thread.sleep(SHORT_DELAY_MS);
422	<	lock.readLock().lock();
423	<	lock.readLock().unlock();
424	<	lock.writeLock().unlock();
425	<	t1.join(MEDIUM_DELAY_MS);
426	<	t2.join(MEDIUM_DELAY_MS);
427	<	assertTrue(!t1.isAlive());
428	<	assertTrue(!t2.isAlive());
438	<
439	<	} catch(Exception e){
440	<	unexpectedException();
441	<	}
442	<	}
416	>	t1.start();
417	>	t2.start();
418	>	lock.readLock().lock();
419	>	lock.readLock().unlock();
420	>	Thread.sleep(SHORT_DELAY_MS);
421	>	lock.readLock().lock();
422	>	lock.readLock().unlock();
423	>	lock.writeLock().unlock();
424	>	t1.join(MEDIUM_DELAY_MS);
425	>	t2.join(MEDIUM_DELAY_MS);
426	>	assertTrue(!t1.isAlive());
427	>	assertTrue(!t2.isAlive());
428	>	}
429
430		/**
431		*  Read lock succeeds if write locked by current thread even if
432		* other threads are waiting for writelock
433		*/
434	<	public void testReadHoldingWriteLock3() {
434	>	public void testReadHoldingWriteLock3() throws InterruptedException {
435		final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
436		lock.writeLock().lock();
437		Thread t1 = new Thread(new Runnable() {
#	Line 461 | Line 447 | public class ReentrantReadWriteLockTest
447		}
448		});
449
450	<	try {
451	<	t1.start();
452	<	t2.start();
453	<	lock.readLock().lock();
454	<	lock.readLock().unlock();
455	<	Thread.sleep(SHORT_DELAY_MS);
456	<	lock.readLock().lock();
457	<	lock.readLock().unlock();
458	<	lock.writeLock().unlock();
459	<	t1.join(MEDIUM_DELAY_MS);
460	<	t2.join(MEDIUM_DELAY_MS);
461	<	assertTrue(!t1.isAlive());
462	<	assertTrue(!t2.isAlive());
477	<
478	<	} catch(Exception e){
479	<	unexpectedException();
480	<	}
481	<	}
450	>	t1.start();
451	>	t2.start();
452	>	lock.readLock().lock();
453	>	lock.readLock().unlock();
454	>	Thread.sleep(SHORT_DELAY_MS);
455	>	lock.readLock().lock();
456	>	lock.readLock().unlock();
457	>	lock.writeLock().unlock();
458	>	t1.join(MEDIUM_DELAY_MS);
459	>	t2.join(MEDIUM_DELAY_MS);
460	>	assertTrue(!t1.isAlive());
461	>	assertTrue(!t2.isAlive());
462	>	}
463
464
465		/**
466		*  Write lock succeeds if write locked by current thread even if
467		* other threads are waiting for writelock
468		*/
469	<	public void testWriteHoldingWriteLock4() {
469	>	public void testWriteHoldingWriteLock4() throws InterruptedException {
470		final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
471		lock.writeLock().lock();
472		Thread t1 = new Thread(new Runnable() {
#	Line 501 | Line 482 | public class ReentrantReadWriteLockTest
482		}
483		});
484
485	<	try {
486	<	t1.start();
487	<	t2.start();
488	<	lock.writeLock().lock();
489	<	lock.writeLock().unlock();
490	<	Thread.sleep(SHORT_DELAY_MS);
491	<	lock.writeLock().lock();
492	<	lock.writeLock().unlock();
493	<	lock.writeLock().unlock();
494	<	t1.join(MEDIUM_DELAY_MS);
495	<	t2.join(MEDIUM_DELAY_MS);
496	<	assertTrue(!t1.isAlive());
497	<	assertTrue(!t2.isAlive());
517	<
518	<	} catch(Exception e){
519	<	unexpectedException();
520	<	}
521	<	}
485	>	t1.start();
486	>	t2.start();
487	>	lock.writeLock().lock();
488	>	lock.writeLock().unlock();
489	>	Thread.sleep(SHORT_DELAY_MS);
490	>	lock.writeLock().lock();
491	>	lock.writeLock().unlock();
492	>	lock.writeLock().unlock();
493	>	t1.join(MEDIUM_DELAY_MS);
494	>	t2.join(MEDIUM_DELAY_MS);
495	>	assertTrue(!t1.isAlive());
496	>	assertTrue(!t2.isAlive());
497	>	}
498
499
500		/**
501		* Fair Read trylock succeeds if write locked by current thread
502		*/
503	<	public void testReadHoldingWriteLockFair() {
503	>	public void testReadHoldingWriteLockFair() {
504		final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true);
505		lock.writeLock().lock();
506		assertTrue(lock.readLock().tryLock());
507		lock.readLock().unlock();
508		lock.writeLock().unlock();
509	<	}
509	>	}
510
511		/**
512		* Fair Read lock succeeds if write locked by current thread even if
513		* other threads are waiting for readlock
514		*/
515	<	public void testReadHoldingWriteLockFair2() {
515	>	public void testReadHoldingWriteLockFair2() throws InterruptedException {
516		final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true);
517		lock.writeLock().lock();
518		Thread t1 = new Thread(new Runnable() {
#	Line 552 | Line 528 | public class ReentrantReadWriteLockTest
528		}
529		});
530
531	<	try {
532	<	t1.start();
533	<	t2.start();
534	<	lock.readLock().lock();
535	<	lock.readLock().unlock();
536	<	Thread.sleep(SHORT_DELAY_MS);
537	<	lock.readLock().lock();
538	<	lock.readLock().unlock();
539	<	lock.writeLock().unlock();
540	<	t1.join(MEDIUM_DELAY_MS);
541	<	t2.join(MEDIUM_DELAY_MS);
542	<	assertTrue(!t1.isAlive());
543	<	assertTrue(!t2.isAlive());
568	<
569	<	} catch(Exception e){
570	<	unexpectedException();
571	<	}
572	<	}
531	>	t1.start();
532	>	t2.start();
533	>	lock.readLock().lock();
534	>	lock.readLock().unlock();
535	>	Thread.sleep(SHORT_DELAY_MS);
536	>	lock.readLock().lock();
537	>	lock.readLock().unlock();
538	>	lock.writeLock().unlock();
539	>	t1.join(MEDIUM_DELAY_MS);
540	>	t2.join(MEDIUM_DELAY_MS);
541	>	assertTrue(!t1.isAlive());
542	>	assertTrue(!t2.isAlive());
543	>	}
544
545
546		/**
547		* Fair Read lock succeeds if write locked by current thread even if
548		* other threads are waiting for writelock
549		*/
550	<	public void testReadHoldingWriteLockFair3() {
550	>	public void testReadHoldingWriteLockFair3() throws InterruptedException {
551		final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true);
552		lock.writeLock().lock();
553		Thread t1 = new Thread(new Runnable() {
#	Line 592 | Line 563 | public class ReentrantReadWriteLockTest
563		}
564		});
565
566	<	try {
567	<	t1.start();
568	<	t2.start();
569	<	lock.readLock().lock();
570	<	lock.readLock().unlock();
571	<	Thread.sleep(SHORT_DELAY_MS);
572	<	lock.readLock().lock();
573	<	lock.readLock().unlock();
574	<	lock.writeLock().unlock();
575	<	t1.join(MEDIUM_DELAY_MS);
576	<	t2.join(MEDIUM_DELAY_MS);
577	<	assertTrue(!t1.isAlive());
578	<	assertTrue(!t2.isAlive());
608	<
609	<	} catch(Exception e){
610	<	unexpectedException();
611	<	}
612	<	}
566	>	t1.start();
567	>	t2.start();
568	>	lock.readLock().lock();
569	>	lock.readLock().unlock();
570	>	Thread.sleep(SHORT_DELAY_MS);
571	>	lock.readLock().lock();
572	>	lock.readLock().unlock();
573	>	lock.writeLock().unlock();
574	>	t1.join(MEDIUM_DELAY_MS);
575	>	t2.join(MEDIUM_DELAY_MS);
576	>	assertTrue(!t1.isAlive());
577	>	assertTrue(!t2.isAlive());
578	>	}
579
580
581		/**
582		* Fair Write lock succeeds if write locked by current thread even if
583		* other threads are waiting for writelock
584		*/
585	<	public void testWriteHoldingWriteLockFair4() {
585	>	public void testWriteHoldingWriteLockFair4() throws InterruptedException {
586		final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true);
587		lock.writeLock().lock();
588		Thread t1 = new Thread(new Runnable() {
#	Line 632 | Line 598 | public class ReentrantReadWriteLockTest
598		}
599		});
600
601	<	try {
602	<	t1.start();
603	<	t2.start();
604	<	Thread.sleep(SHORT_DELAY_MS);
605	<	assertTrue(lock.isWriteLockedByCurrentThread());
606	<	assertTrue(lock.getWriteHoldCount() == 1);
607	<	lock.writeLock().lock();
608	<	assertTrue(lock.getWriteHoldCount() == 2);
609	<	lock.writeLock().unlock();
610	<	lock.writeLock().lock();
611	<	lock.writeLock().unlock();
612	<	lock.writeLock().unlock();
613	<	t1.join(MEDIUM_DELAY_MS);
614	<	t2.join(MEDIUM_DELAY_MS);
615	<	assertTrue(!t1.isAlive());
616	<	assertTrue(!t2.isAlive());
651	<
652	<	} catch(Exception e){
653	<	unexpectedException();
654	<	}
655	<	}
601	>	t1.start();
602	>	t2.start();
603	>	Thread.sleep(SHORT_DELAY_MS);
604	>	assertTrue(lock.isWriteLockedByCurrentThread());
605	>	assertTrue(lock.getWriteHoldCount() == 1);
606	>	lock.writeLock().lock();
607	>	assertTrue(lock.getWriteHoldCount() == 2);
608	>	lock.writeLock().unlock();
609	>	lock.writeLock().lock();
610	>	lock.writeLock().unlock();
611	>	lock.writeLock().unlock();
612	>	t1.join(MEDIUM_DELAY_MS);
613	>	t2.join(MEDIUM_DELAY_MS);
614	>	assertTrue(!t1.isAlive());
615	>	assertTrue(!t2.isAlive());
616	>	}
617
618
619		/**
620		* Read tryLock succeeds if readlocked but not writelocked
621		*/
622	<	public void testTryLockWhenReadLocked() {
622	>	public void testTryLockWhenReadLocked() throws InterruptedException {
623		final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
624		lock.readLock().lock();
625		Thread t = new Thread(new Runnable() {
#	Line 667 | Line 628 | public class ReentrantReadWriteLockTest
628		lock.readLock().unlock();
629		}
630		});
670	–	try {
671	–	t.start();
672	–	t.join();
673	–	lock.readLock().unlock();
674	–	} catch(Exception e){
675	–	unexpectedException();
676	–	}
677	–	}
631
632	<
632	>	t.start();
633	>	t.join();
634	>	lock.readLock().unlock();
635	>	}
636	>
637	>
638
639		/**
640		* write tryLock fails when readlocked
641		*/
642	<	public void testWriteTryLockWhenReadLocked() {
642	>	public void testWriteTryLockWhenReadLocked() throws InterruptedException {
643		final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
644		lock.readLock().lock();
645		Thread t = new Thread(new Runnable() {
#	Line 689 | Line 647 | public class ReentrantReadWriteLockTest
647		threadAssertFalse(lock.writeLock().tryLock());
648		}
649		});
650	<	try {
651	<	t.start();
652	<	t.join();
653	<	lock.readLock().unlock();
654	<	} catch(Exception e){
697	<	unexpectedException();
698	<	}
699	<	}
650	>
651	>	t.start();
652	>	t.join();
653	>	lock.readLock().unlock();
654	>	}
655
656
657		/**
658		* Fair Read tryLock succeeds if readlocked but not writelocked
659		*/
660	<	public void testTryLockWhenReadLockedFair() {
660	>	public void testTryLockWhenReadLockedFair() throws InterruptedException {
661		final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true);
662		lock.readLock().lock();
663		Thread t = new Thread(new Runnable() {
#	Line 711 | Line 666 | public class ReentrantReadWriteLockTest
666		lock.readLock().unlock();
667		}
668		});
714	–	try {
715	–	t.start();
716	–	t.join();
717	–	lock.readLock().unlock();
718	–	} catch(Exception e){
719	–	unexpectedException();
720	–	}
721	–	}
669
670	<
670	>	t.start();
671	>	t.join();
672	>	lock.readLock().unlock();
673	>	}
674	>
675	>
676
677		/**
678		* Fair write tryLock fails when readlocked
679		*/
680	<	public void testWriteTryLockWhenReadLockedFair() {
680	>	public void testWriteTryLockWhenReadLockedFair() throws InterruptedException {
681		final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true);
682		lock.readLock().lock();
683		Thread t = new Thread(new Runnable() {
#	Line 733 | Line 685 | public class ReentrantReadWriteLockTest
685		threadAssertFalse(lock.writeLock().tryLock());
686		}
687		});
736	–	try {
737	–	t.start();
738	–	t.join();
739	–	lock.readLock().unlock();
740	–	} catch(Exception e){
741	–	unexpectedException();
742	–	}
743	–	}
688
689	<
689	>	t.start();
690	>	t.join();
691	>	lock.readLock().unlock();
692	>	}
693	>
694	>
695
696		/**
697		* write timed tryLock times out if locked
698		*/
699	<	public void testWriteTryLock_Timeout() {
699	>	public void testWriteTryLock_Timeout() throws InterruptedException {
700		final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
701		lock.writeLock().lock();
702		Thread t = new Thread(new Runnable() {
#	Line 759 | Line 708 | public class ReentrantReadWriteLockTest
708		}
709		}
710		});
711	<	try {
712	<	t.start();
713	<	t.join();
714	<	lock.writeLock().unlock();
715	<	} catch(Exception e){
767	<	unexpectedException();
768	<	}
769	<	}
711	>
712	>	t.start();
713	>	t.join();
714	>	lock.writeLock().unlock();
715	>	}
716
717		/**
718		* read timed tryLock times out if write-locked
719		*/
720	<	public void testReadTryLock_Timeout() {
720	>	public void testReadTryLock_Timeout() throws InterruptedException {
721		final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
722		lock.writeLock().lock();
723		Thread t = new Thread(new Runnable() {
#	Line 783 | Line 729 | public class ReentrantReadWriteLockTest
729		}
730		}
731		});
732	<	try {
733	<	t.start();
734	<	t.join();
735	<	lock.writeLock().unlock();
736	<	} catch(Exception e){
791	<	unexpectedException();
792	<	}
793	<	}
732	>
733	>	t.start();
734	>	t.join();
735	>	lock.writeLock().unlock();
736	>	}
737
738
739		/**
740		* write lockInterruptibly succeeds if lock free else is interruptible
741		*/
742	<	public void testWriteLockInterruptibly() {
742	>	public void testWriteLockInterruptibly() throws InterruptedException {
743		final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
744	<	try {
745	<	lock.writeLock().lockInterruptibly();
803	<	} catch(Exception e) {
804	<	unexpectedException();
805	<	}
806	<	Thread t = new Thread(new Runnable() {
744	>	lock.writeLock().lockInterruptibly();
745	>	Thread t = new Thread(new Runnable() {
746		public void run() {
747		try {
748		lock.writeLock().lockInterruptibly();
749		threadShouldThrow();
750		}
751	<	catch(InterruptedException success) {
751	>	catch (InterruptedException success) {
752		}
753		}
754		});
755	<	try {
756	<	t.start();
757	<	t.interrupt();
758	<	t.join();
759	<	lock.writeLock().unlock();
760	<	} catch(Exception e){
761	<	unexpectedException();
823	<	}
755	>
756	>	t.start();
757	>	Thread.sleep(SHORT_DELAY_MS);
758	>	t.interrupt();
759	>	Thread.sleep(SHORT_DELAY_MS);
760	>	t.join();
761	>	lock.writeLock().unlock();
762		}
763
764		/**
765		*  read lockInterruptibly succeeds if lock free else is interruptible
766		*/
767	<	public void testReadLockInterruptibly() {
767	>	public void testReadLockInterruptibly() throws InterruptedException {
768		final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
769	<	try {
770	<	lock.writeLock().lockInterruptibly();
833	<	} catch(Exception e) {
834	<	unexpectedException();
835	<	}
836	<	Thread t = new Thread(new Runnable() {
769	>	lock.writeLock().lockInterruptibly();
770	>	Thread t = new Thread(new Runnable() {
771		public void run() {
772		try {
773		lock.readLock().lockInterruptibly();
774		threadShouldThrow();
775		}
776	<	catch(InterruptedException success) {
776	>	catch (InterruptedException success) {
777		}
778		}
779		});
780	<	try {
781	<	t.start();
782	<	t.interrupt();
783	<	t.join();
784	<	lock.writeLock().unlock();
785	<	} catch(Exception e){
852	<	unexpectedException();
853	<	}
780	>
781	>	t.start();
782	>	Thread.sleep(SHORT_DELAY_MS);
783	>	t.interrupt();
784	>	t.join();
785	>	lock.writeLock().unlock();
786		}
787
788		/**
789		* Calling await without holding lock throws IllegalMonitorStateException
790		*/
791	<	public void testAwait_IllegalMonitor() {
792	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
791	>	public void testAwait_IllegalMonitor() throws InterruptedException {
792	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
793		final Condition c = lock.writeLock().newCondition();
794		try {
795		c.await();
796		shouldThrow();
797	<	}
866	<	catch (IllegalMonitorStateException success) {
867	<	}
868	<	catch (Exception ex) {
869	<	shouldThrow();
870	<	}
797	>	} catch (IllegalMonitorStateException success) {}
798		}
799
800		/**
801		* Calling signal without holding lock throws IllegalMonitorStateException
802		*/
803		public void testSignal_IllegalMonitor() {
804	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
804	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
805		final Condition c = lock.writeLock().newCondition();
806		try {
807		c.signal();
808		shouldThrow();
809	<	}
883	<	catch (IllegalMonitorStateException success) {
884	<	}
885	<	catch (Exception ex) {
886	<	unexpectedException();
887	<	}
809	>	} catch (IllegalMonitorStateException success) {}
810		}
811
812		/**
813		* awaitNanos without a signal times out
814		*/
815	<	public void testAwaitNanos_Timeout() {
816	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
815	>	public void testAwaitNanos_Timeout() throws InterruptedException {
816	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
817		final Condition c = lock.writeLock().newCondition();
818	<	try {
819	<	lock.writeLock().lock();
820	<	long t = c.awaitNanos(100);
821	<	assertTrue(t <= 0);
822	<	lock.writeLock().unlock();
901	<	}
902	<	catch (Exception ex) {
903	<	unexpectedException();
904	<	}
818	>
819	>	lock.writeLock().lock();
820	>	long t = c.awaitNanos(100);
821	>	assertTrue(t <= 0);
822	>	lock.writeLock().unlock();
823		}
824
825
#	Line 909 | Line 827 | public class ReentrantReadWriteLockTest
827		*  timed await without a signal times out
828		*/
829		public void testAwait_Timeout() {
830	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
830	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
831		final Condition c = lock.writeLock().newCondition();
832	<	try {
833	<	lock.writeLock().lock();
916	<	lock.writeLock().unlock();
917	<	}
918	<	catch (Exception ex) {
919	<	unexpectedException();
920	<	}
832	>	lock.writeLock().lock();
833	>	lock.writeLock().unlock();
834		}
835
836		/**
837		* awaitUntil without a signal times out
838		*/
839		public void testAwaitUntil_Timeout() {
840	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
840	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
841		final Condition c = lock.writeLock().newCondition();
842	<	try {
843	<	lock.writeLock().lock();
844	<	java.util.Date d = new java.util.Date();
932	<	lock.writeLock().unlock();
933	<	}
934	<	catch (Exception ex) {
935	<	unexpectedException();
936	<	}
842	>	lock.writeLock().lock();
843	>	java.util.Date d = new java.util.Date();
844	>	lock.writeLock().unlock();
845		}
846
847		/**
848		* await returns when signalled
849		*/
850	<	public void testAwait() {
851	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
850	>	public void testAwait() throws InterruptedException {
851	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
852		final Condition c = lock.writeLock().newCondition();
853	<	Thread t = new Thread(new Runnable() {
853	>	Thread t = new Thread(new Runnable() {
854		public void run() {
855		try {
856		lock.writeLock().lock();
857		c.await();
858		lock.writeLock().unlock();
859		}
860	<	catch(InterruptedException e) {
860	>	catch (InterruptedException e) {
861		threadUnexpectedException();
862		}
863		}
864		});
865
866	<	try {
867	<	t.start();
868	<	Thread.sleep(SHORT_DELAY_MS);
869	<	lock.writeLock().lock();
870	<	c.signal();
871	<	lock.writeLock().unlock();
872	<	t.join(SHORT_DELAY_MS);
965	<	assertFalse(t.isAlive());
966	<	}
967	<	catch (Exception ex) {
968	<	unexpectedException();
969	<	}
866	>	t.start();
867	>	Thread.sleep(SHORT_DELAY_MS);
868	>	lock.writeLock().lock();
869	>	c.signal();
870	>	lock.writeLock().unlock();
871	>	t.join(SHORT_DELAY_MS);
872	>	assertFalse(t.isAlive());
873		}
874
875		/** A helper class for uninterruptible wait tests */
876		class UninterruptableThread extends Thread {
877		private Lock lock;
878		private Condition c;
879	<
879	>
880		public volatile boolean canAwake = false;
881		public volatile boolean interrupted = false;
882		public volatile boolean lockStarted = false;
883	<
883	>
884		public UninterruptableThread(Lock lock, Condition c) {
885		this.lock = lock;
886		this.c = c;
887		}
888	<
888	>
889		public synchronized void run() {
890		lock.lock();
891		lockStarted = true;
892	<
892	>
893		while (!canAwake) {
894		c.awaitUninterruptibly();
895		}
896	<
896	>
897		interrupted = isInterrupted();
898		lock.unlock();
899		}
#	Line 999 | Line 902 | public class ReentrantReadWriteLockTest
902		/**
903		* awaitUninterruptibly doesn't abort on interrupt
904		*/
905	<	public void testAwaitUninterruptibly() {
905	>	public void testAwaitUninterruptibly() throws InterruptedException {
906		final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
907		final Condition c = lock.writeLock().newCondition();
908		UninterruptableThread thread = new UninterruptableThread(lock.writeLock(), c);
909
910	<	try {
1008	<	thread.start();
1009	<
1010	<	while (!thread.lockStarted) {
1011	<	Thread.sleep(100);
1012	<	}
910	>	thread.start();
911
912	<	lock.writeLock().lock();
913	<	try {
914	<	thread.interrupt();
1017	<	thread.canAwake = true;
1018	<	c.signal();
1019	<	} finally {
1020	<	lock.writeLock().unlock();
1021	<	}
912	>	while (!thread.lockStarted) {
913	>	Thread.sleep(100);
914	>	}
915
916	<	thread.join();
917	<	assertTrue(thread.interrupted);
918	<	assertFalse(thread.isAlive());
919	<	} catch (Exception ex) {
920	<	unexpectedException();
916	>	lock.writeLock().lock();
917	>	try {
918	>	thread.interrupt();
919	>	thread.canAwake = true;
920	>	c.signal();
921	>	} finally {
922	>	lock.writeLock().unlock();
923		}
924	+
925	+	thread.join();
926	+	assertTrue(thread.interrupted);
927	+	assertFalse(thread.isAlive());
928		}
929
930		/**
931		* await is interruptible
932		*/
933	<	public void testAwait_Interrupt() {
934	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
933	>	public void testAwait_Interrupt() throws InterruptedException {
934	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
935		final Condition c = lock.writeLock().newCondition();
936	<	Thread t = new Thread(new Runnable() {
936	>	Thread t = new Thread(new Runnable() {
937		public void run() {
938		try {
939		lock.writeLock().lock();
#	Line 1042 | Line 941 | public class ReentrantReadWriteLockTest
941		lock.writeLock().unlock();
942		threadShouldThrow();
943		}
944	<	catch(InterruptedException success) {
944	>	catch (InterruptedException success) {
945		}
946		}
947		});
948
949	<	try {
950	<	t.start();
951	<	Thread.sleep(SHORT_DELAY_MS);
952	<	t.interrupt();
953	<	t.join(SHORT_DELAY_MS);
1055	<	assertFalse(t.isAlive());
1056	<	}
1057	<	catch (Exception ex) {
1058	<	unexpectedException();
1059	<	}
949	>	t.start();
950	>	Thread.sleep(SHORT_DELAY_MS);
951	>	t.interrupt();
952	>	t.join(SHORT_DELAY_MS);
953	>	assertFalse(t.isAlive());
954		}
955
956		/**
957		* awaitNanos is interruptible
958		*/
959	<	public void testAwaitNanos_Interrupt() {
960	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
959	>	public void testAwaitNanos_Interrupt() throws InterruptedException {
960	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
961		final Condition c = lock.writeLock().newCondition();
962	<	Thread t = new Thread(new Runnable() {
962	>	Thread t = new Thread(new Runnable() {
963		public void run() {
964		try {
965		lock.writeLock().lock();
#	Line 1073 | Line 967 | public class ReentrantReadWriteLockTest
967		lock.writeLock().unlock();
968		threadShouldThrow();
969		}
970	<	catch(InterruptedException success) {
970	>	catch (InterruptedException success) {
971		}
972		}
973		});
974
975	<	try {
976	<	t.start();
977	<	Thread.sleep(SHORT_DELAY_MS);
978	<	t.interrupt();
979	<	t.join(SHORT_DELAY_MS);
1086	<	assertFalse(t.isAlive());
1087	<	}
1088	<	catch (Exception ex) {
1089	<	unexpectedException();
1090	<	}
975	>	t.start();
976	>	Thread.sleep(SHORT_DELAY_MS);
977	>	t.interrupt();
978	>	t.join(SHORT_DELAY_MS);
979	>	assertFalse(t.isAlive());
980		}
981
982		/**
983		* awaitUntil is interruptible
984		*/
985	<	public void testAwaitUntil_Interrupt() {
986	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
985	>	public void testAwaitUntil_Interrupt() throws InterruptedException {
986	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
987		final Condition c = lock.writeLock().newCondition();
988	<	Thread t = new Thread(new Runnable() {
988	>	Thread t = new Thread(new Runnable() {
989		public void run() {
990		try {
991		lock.writeLock().lock();
#	Line 1105 | Line 994 | public class ReentrantReadWriteLockTest
994		lock.writeLock().unlock();
995		threadShouldThrow();
996		}
997	<	catch(InterruptedException success) {
997	>	catch (InterruptedException success) {
998		}
999		}
1000		});
1001
1002	<	try {
1003	<	t.start();
1004	<	Thread.sleep(SHORT_DELAY_MS);
1005	<	t.interrupt();
1006	<	t.join(SHORT_DELAY_MS);
1118	<	assertFalse(t.isAlive());
1119	<	}
1120	<	catch (Exception ex) {
1121	<	unexpectedException();
1122	<	}
1002	>	t.start();
1003	>	Thread.sleep(SHORT_DELAY_MS);
1004	>	t.interrupt();
1005	>	t.join(SHORT_DELAY_MS);
1006	>	assertFalse(t.isAlive());
1007		}
1008
1009		/**
1010		* signalAll wakes up all threads
1011		*/
1012	<	public void testSignalAll() {
1013	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
1012	>	public void testSignalAll() throws InterruptedException {
1013	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
1014		final Condition c = lock.writeLock().newCondition();
1015	<	Thread t1 = new Thread(new Runnable() {
1015	>	Thread t1 = new Thread(new Runnable() {
1016		public void run() {
1017		try {
1018		lock.writeLock().lock();
1019		c.await();
1020		lock.writeLock().unlock();
1021		}
1022	<	catch(InterruptedException e) {
1022	>	catch (InterruptedException e) {
1023		threadUnexpectedException();
1024		}
1025		}
1026		});
1027
1028	<	Thread t2 = new Thread(new Runnable() {
1028	>	Thread t2 = new Thread(new Runnable() {
1029		public void run() {
1030		try {
1031		lock.writeLock().lock();
1032		c.await();
1033		lock.writeLock().unlock();
1034		}
1035	<	catch(InterruptedException e) {
1035	>	catch (InterruptedException e) {
1036		threadUnexpectedException();
1037		}
1038		}
1039		});
1040
1041	<	try {
1042	<	t1.start();
1043	<	t2.start();
1044	<	Thread.sleep(SHORT_DELAY_MS);
1045	<	lock.writeLock().lock();
1046	<	c.signalAll();
1047	<	lock.writeLock().unlock();
1048	<	t1.join(SHORT_DELAY_MS);
1049	<	t2.join(SHORT_DELAY_MS);
1050	<	assertFalse(t1.isAlive());
1167	<	assertFalse(t2.isAlive());
1168	<	}
1169	<	catch (Exception ex) {
1170	<	unexpectedException();
1171	<	}
1041	>	t1.start();
1042	>	t2.start();
1043	>	Thread.sleep(SHORT_DELAY_MS);
1044	>	lock.writeLock().lock();
1045	>	c.signalAll();
1046	>	lock.writeLock().unlock();
1047	>	t1.join(SHORT_DELAY_MS);
1048	>	t2.join(SHORT_DELAY_MS);
1049	>	assertFalse(t1.isAlive());
1050	>	assertFalse(t2.isAlive());
1051		}
1052
1053		/**
1054		* A serialized lock deserializes as unlocked
1055		*/
1056	<	public void testSerialization() {
1056	>	public void testSerialization() throws Exception {
1057		ReentrantReadWriteLock l = new ReentrantReadWriteLock();
1058		l.readLock().lock();
1059		l.readLock().unlock();
1060
1061	<	try {
1062	<	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
1063	<	ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
1064	<	out.writeObject(l);
1065	<	out.close();
1066	<
1067	<	ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
1068	<	ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
1069	<	ReentrantReadWriteLock r = (ReentrantReadWriteLock) in.readObject();
1070	<	r.readLock().lock();
1192	<	r.readLock().unlock();
1193	<	} catch(Exception e){
1194	<	e.printStackTrace();
1195	<	unexpectedException();
1196	<	}
1061	>	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
1062	>	ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
1063	>	out.writeObject(l);
1064	>	out.close();
1065	>
1066	>	ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
1067	>	ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
1068	>	ReentrantReadWriteLock r = (ReentrantReadWriteLock) in.readObject();
1069	>	r.readLock().lock();
1070	>	r.readLock().unlock();
1071		}
1072
1073		/**
1074		* hasQueuedThreads reports whether there are waiting threads
1075		*/
1076	<	public void testhasQueuedThreads() {
1076	>	public void testhasQueuedThreads() throws InterruptedException {
1077		final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
1078		Thread t1 = new Thread(new InterruptedLockRunnable(lock));
1079		Thread t2 = new Thread(new InterruptibleLockRunnable(lock));
1080	<	try {
1081	<	assertFalse(lock.hasQueuedThreads());
1082	<	lock.writeLock().lock();
1083	<	t1.start();
1084	<	Thread.sleep(SHORT_DELAY_MS);
1085	<	assertTrue(lock.hasQueuedThreads());
1086	<	t2.start();
1087	<	Thread.sleep(SHORT_DELAY_MS);
1088	<	assertTrue(lock.hasQueuedThreads());
1089	<	t1.interrupt();
1090	<	Thread.sleep(SHORT_DELAY_MS);
1091	<	assertTrue(lock.hasQueuedThreads());
1092	<	lock.writeLock().unlock();
1093	<	Thread.sleep(SHORT_DELAY_MS);
1094	<	assertFalse(lock.hasQueuedThreads());
1095	<	t1.join();
1096	<	t2.join();
1223	<	} catch(Exception e){
1224	<	unexpectedException();
1225	<	}
1226	<	}
1080	>	assertFalse(lock.hasQueuedThreads());
1081	>	lock.writeLock().lock();
1082	>	t1.start();
1083	>	Thread.sleep(SHORT_DELAY_MS);
1084	>	assertTrue(lock.hasQueuedThreads());
1085	>	t2.start();
1086	>	Thread.sleep(SHORT_DELAY_MS);
1087	>	assertTrue(lock.hasQueuedThreads());
1088	>	t1.interrupt();
1089	>	Thread.sleep(SHORT_DELAY_MS);
1090	>	assertTrue(lock.hasQueuedThreads());
1091	>	lock.writeLock().unlock();
1092	>	Thread.sleep(SHORT_DELAY_MS);
1093	>	assertFalse(lock.hasQueuedThreads());
1094	>	t1.join();
1095	>	t2.join();
1096	>	}
1097
1098		/**
1099		* hasQueuedThread(null) throws NPE
1100		*/
1101	<	public void testHasQueuedThreadNPE() {
1101	>	public void testHasQueuedThreadNPE() {
1102		final ReentrantReadWriteLock sync = new ReentrantReadWriteLock();
1103		try {
1104		sync.hasQueuedThread(null);
#	Line 1240 | Line 1110 | public class ReentrantReadWriteLockTest
1110		/**
1111		* hasQueuedThread reports whether a thread is queued.
1112		*/
1113	<	public void testHasQueuedThread() {
1113	>	public void testHasQueuedThread() throws InterruptedException {
1114		final ReentrantReadWriteLock sync = new ReentrantReadWriteLock();
1115		Thread t1 = new Thread(new InterruptedLockRunnable(sync));
1116		Thread t2 = new Thread(new InterruptibleLockRunnable(sync));
1117	<	try {
1118	<	assertFalse(sync.hasQueuedThread(t1));
1119	<	assertFalse(sync.hasQueuedThread(t2));
1120	<	sync.writeLock().lock();
1121	<	t1.start();
1122	<	Thread.sleep(SHORT_DELAY_MS);
1123	<	assertTrue(sync.hasQueuedThread(t1));
1124	<	t2.start();
1125	<	Thread.sleep(SHORT_DELAY_MS);
1126	<	assertTrue(sync.hasQueuedThread(t1));
1127	<	assertTrue(sync.hasQueuedThread(t2));
1128	<	t1.interrupt();
1129	<	Thread.sleep(SHORT_DELAY_MS);
1130	<	assertFalse(sync.hasQueuedThread(t1));
1131	<	assertTrue(sync.hasQueuedThread(t2));
1132	<	sync.writeLock().unlock();
1133	<	Thread.sleep(SHORT_DELAY_MS);
1134	<	assertFalse(sync.hasQueuedThread(t1));
1135	<	Thread.sleep(SHORT_DELAY_MS);
1136	<	assertFalse(sync.hasQueuedThread(t2));
1137	<	t1.join();
1138	<	t2.join();
1269	<	} catch(Exception e){
1270	<	unexpectedException();
1271	<	}
1272	<	}
1117	>	assertFalse(sync.hasQueuedThread(t1));
1118	>	assertFalse(sync.hasQueuedThread(t2));
1119	>	sync.writeLock().lock();
1120	>	t1.start();
1121	>	Thread.sleep(SHORT_DELAY_MS);
1122	>	assertTrue(sync.hasQueuedThread(t1));
1123	>	t2.start();
1124	>	Thread.sleep(SHORT_DELAY_MS);
1125	>	assertTrue(sync.hasQueuedThread(t1));
1126	>	assertTrue(sync.hasQueuedThread(t2));
1127	>	t1.interrupt();
1128	>	Thread.sleep(SHORT_DELAY_MS);
1129	>	assertFalse(sync.hasQueuedThread(t1));
1130	>	assertTrue(sync.hasQueuedThread(t2));
1131	>	sync.writeLock().unlock();
1132	>	Thread.sleep(SHORT_DELAY_MS);
1133	>	assertFalse(sync.hasQueuedThread(t1));
1134	>	Thread.sleep(SHORT_DELAY_MS);
1135	>	assertFalse(sync.hasQueuedThread(t2));
1136	>	t1.join();
1137	>	t2.join();
1138	>	}
1139
1140
1141		/**
1142		* getQueueLength reports number of waiting threads
1143		*/
1144	<	public void testGetQueueLength() {
1144	>	public void testGetQueueLength() throws InterruptedException {
1145		final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
1146		Thread t1 = new Thread(new InterruptedLockRunnable(lock));
1147		Thread t2 = new Thread(new InterruptibleLockRunnable(lock));
1148	<	try {
1149	<	assertEquals(0, lock.getQueueLength());
1150	<	lock.writeLock().lock();
1151	<	t1.start();
1152	<	Thread.sleep(SHORT_DELAY_MS);
1153	<	assertEquals(1, lock.getQueueLength());
1154	<	t2.start();
1155	<	Thread.sleep(SHORT_DELAY_MS);
1156	<	assertEquals(2, lock.getQueueLength());
1157	<	t1.interrupt();
1158	<	Thread.sleep(SHORT_DELAY_MS);
1159	<	assertEquals(1, lock.getQueueLength());
1160	<	lock.writeLock().unlock();
1161	<	Thread.sleep(SHORT_DELAY_MS);
1162	<	assertEquals(0, lock.getQueueLength());
1163	<	t1.join();
1164	<	t2.join();
1299	<	} catch(Exception e){
1300	<	unexpectedException();
1301	<	}
1302	<	}
1148	>	assertEquals(0, lock.getQueueLength());
1149	>	lock.writeLock().lock();
1150	>	t1.start();
1151	>	Thread.sleep(SHORT_DELAY_MS);
1152	>	assertEquals(1, lock.getQueueLength());
1153	>	t2.start();
1154	>	Thread.sleep(SHORT_DELAY_MS);
1155	>	assertEquals(2, lock.getQueueLength());
1156	>	t1.interrupt();
1157	>	Thread.sleep(SHORT_DELAY_MS);
1158	>	assertEquals(1, lock.getQueueLength());
1159	>	lock.writeLock().unlock();
1160	>	Thread.sleep(SHORT_DELAY_MS);
1161	>	assertEquals(0, lock.getQueueLength());
1162	>	t1.join();
1163	>	t2.join();
1164	>	}
1165
1166		/**
1167		* getQueuedThreads includes waiting threads
1168		*/
1169	<	public void testGetQueuedThreads() {
1169	>	public void testGetQueuedThreads() throws InterruptedException {
1170		final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
1171		Thread t1 = new Thread(new InterruptedLockRunnable(lock));
1172		Thread t2 = new Thread(new InterruptibleLockRunnable(lock));
1173	<	try {
1174	<	assertTrue(lock.getQueuedThreads().isEmpty());
1175	<	lock.writeLock().lock();
1176	<	assertTrue(lock.getQueuedThreads().isEmpty());
1177	<	t1.start();
1178	<	Thread.sleep(SHORT_DELAY_MS);
1179	<	assertTrue(lock.getQueuedThreads().contains(t1));
1180	<	t2.start();
1181	<	Thread.sleep(SHORT_DELAY_MS);
1182	<	assertTrue(lock.getQueuedThreads().contains(t1));
1183	<	assertTrue(lock.getQueuedThreads().contains(t2));
1184	<	t1.interrupt();
1185	<	Thread.sleep(SHORT_DELAY_MS);
1186	<	assertFalse(lock.getQueuedThreads().contains(t1));
1187	<	assertTrue(lock.getQueuedThreads().contains(t2));
1188	<	lock.writeLock().unlock();
1189	<	Thread.sleep(SHORT_DELAY_MS);
1190	<	assertTrue(lock.getQueuedThreads().isEmpty());
1191	<	t1.join();
1192	<	t2.join();
1331	<	} catch(Exception e){
1332	<	unexpectedException();
1333	<	}
1334	<	}
1173	>	assertTrue(lock.getQueuedThreads().isEmpty());
1174	>	lock.writeLock().lock();
1175	>	assertTrue(lock.getQueuedThreads().isEmpty());
1176	>	t1.start();
1177	>	Thread.sleep(SHORT_DELAY_MS);
1178	>	assertTrue(lock.getQueuedThreads().contains(t1));
1179	>	t2.start();
1180	>	Thread.sleep(SHORT_DELAY_MS);
1181	>	assertTrue(lock.getQueuedThreads().contains(t1));
1182	>	assertTrue(lock.getQueuedThreads().contains(t2));
1183	>	t1.interrupt();
1184	>	Thread.sleep(SHORT_DELAY_MS);
1185	>	assertFalse(lock.getQueuedThreads().contains(t1));
1186	>	assertTrue(lock.getQueuedThreads().contains(t2));
1187	>	lock.writeLock().unlock();
1188	>	Thread.sleep(SHORT_DELAY_MS);
1189	>	assertTrue(lock.getQueuedThreads().isEmpty());
1190	>	t1.join();
1191	>	t2.join();
1192	>	}
1193
1194		/**
1195		* hasWaiters throws NPE if null
#	Line 1341 | Line 1199 | public class ReentrantReadWriteLockTest
1199		try {
1200		lock.hasWaiters(null);
1201		shouldThrow();
1202	<	} catch (NullPointerException success) {
1345	<	} catch (Exception ex) {
1346	<	unexpectedException();
1347	<	}
1202	>	} catch (NullPointerException success) {}
1203		}
1204
1205		/**
#	Line 1355 | Line 1210 | public class ReentrantReadWriteLockTest
1210		try {
1211		lock.getWaitQueueLength(null);
1212		shouldThrow();
1213	<	} catch (NullPointerException success) {
1359	<	} catch (Exception ex) {
1360	<	unexpectedException();
1361	<	}
1213	>	} catch (NullPointerException success) {}
1214		}
1215
1216
#	Line 1370 | Line 1222 | public class ReentrantReadWriteLockTest
1222		try {
1223		lock.getWaitingThreads(null);
1224		shouldThrow();
1225	<	} catch (NullPointerException success) {
1374	<	} catch (Exception ex) {
1375	<	unexpectedException();
1376	<	}
1225	>	} catch (NullPointerException success) {}
1226		}
1227
1228		/**
#	Line 1381 | Line 1230 | public class ReentrantReadWriteLockTest
1230		*/
1231		public void testHasWaitersIAE() {
1232		final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
1233	<	final Condition c = (lock.writeLock().newCondition());
1233	>	final Condition c = lock.writeLock().newCondition();
1234		final ReentrantReadWriteLock lock2 = new ReentrantReadWriteLock();
1235		try {
1236		lock2.hasWaiters(c);
1237		shouldThrow();
1238	<	} catch (IllegalArgumentException success) {
1390	<	} catch (Exception ex) {
1391	<	unexpectedException();
1392	<	}
1238	>	} catch (IllegalArgumentException success) {}
1239		}
1240
1241		/**
#	Line 1397 | Line 1243 | public class ReentrantReadWriteLockTest
1243		*/
1244		public void testHasWaitersIMSE() {
1245		final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
1246	<	final Condition c = (lock.writeLock().newCondition());
1246	>	final Condition c = lock.writeLock().newCondition();
1247		try {
1248		lock.hasWaiters(c);
1249		shouldThrow();
1250	<	} catch (IllegalMonitorStateException success) {
1405	<	} catch (Exception ex) {
1406	<	unexpectedException();
1407	<	}
1250	>	} catch (IllegalMonitorStateException success) {}
1251		}
1252
1253
#	Line 1413 | Line 1256 | public class ReentrantReadWriteLockTest
1256		*/
1257		public void testGetWaitQueueLengthIAE() {
1258		final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
1259	<	final Condition c = (lock.writeLock().newCondition());
1259	>	final Condition c = lock.writeLock().newCondition();
1260		final ReentrantReadWriteLock lock2 = new ReentrantReadWriteLock();
1261		try {
1262		lock2.getWaitQueueLength(c);
1263		shouldThrow();
1264	<	} catch (IllegalArgumentException success) {
1422	<	} catch (Exception ex) {
1423	<	unexpectedException();
1424	<	}
1264	>	} catch (IllegalArgumentException success) {}
1265		}
1266
1267		/**
#	Line 1429 | Line 1269 | public class ReentrantReadWriteLockTest
1269		*/
1270		public void testGetWaitQueueLengthIMSE() {
1271		final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
1272	<	final Condition c = (lock.writeLock().newCondition());
1272	>	final Condition c = lock.writeLock().newCondition();
1273		try {
1274		lock.getWaitQueueLength(c);
1275		shouldThrow();
1276	<	} catch (IllegalMonitorStateException success) {
1437	<	} catch (Exception ex) {
1438	<	unexpectedException();
1439	<	}
1276	>	} catch (IllegalMonitorStateException success) {}
1277		}
1278
1279
#	Line 1444 | Line 1281 | public class ReentrantReadWriteLockTest
1281		* getWaitingThreads throws IAE if not owned
1282		*/
1283		public void testGetWaitingThreadsIAE() {
1284	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
1285	<	final Condition c = (lock.writeLock().newCondition());
1286	<	final PublicReentrantReadWriteLock lock2 = new PublicReentrantReadWriteLock();
1284	>	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
1285	>	final Condition c = lock.writeLock().newCondition();
1286	>	final PublicReentrantReadWriteLock lock2 = new PublicReentrantReadWriteLock();
1287		try {
1288		lock2.getWaitingThreads(c);
1289		shouldThrow();
1290	<	} catch (IllegalArgumentException success) {
1454	<	} catch (Exception ex) {
1455	<	unexpectedException();
1456	<	}
1290	>	} catch (IllegalArgumentException success) {}
1291		}
1292
1293		/**
1294		* getWaitingThreads throws IMSE if not locked
1295		*/
1296		public void testGetWaitingThreadsIMSE() {
1297	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
1298	<	final Condition c = (lock.writeLock().newCondition());
1297	>	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
1298	>	final Condition c = lock.writeLock().newCondition();
1299		try {
1300		lock.getWaitingThreads(c);
1301		shouldThrow();
1302	<	} catch (IllegalMonitorStateException success) {
1469	<	} catch (Exception ex) {
1470	<	unexpectedException();
1471	<	}
1302	>	} catch (IllegalMonitorStateException success) {}
1303		}
1304
1305
1306		/**
1307		* hasWaiters returns true when a thread is waiting, else false
1308		*/
1309	<	public void testHasWaiters() {
1309	>	public void testHasWaiters() throws InterruptedException {
1310		final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
1311	<	final Condition c = (lock.writeLock().newCondition());
1312	<	Thread t = new Thread(new Runnable() {
1311	>	final Condition c = lock.writeLock().newCondition();
1312	>	Thread t = new Thread(new Runnable() {
1313		public void run() {
1314		try {
1315		lock.writeLock().lock();
#	Line 1487 | Line 1318 | public class ReentrantReadWriteLockTest
1318		c.await();
1319		lock.writeLock().unlock();
1320		}
1321	<	catch(InterruptedException e) {
1321	>	catch (InterruptedException e) {
1322		threadUnexpectedException();
1323		}
1324		}
1325		});
1326
1327	<	try {
1328	<	t.start();
1329	<	Thread.sleep(SHORT_DELAY_MS);
1330	<	lock.writeLock().lock();
1331	<	assertTrue(lock.hasWaiters(c));
1332	<	assertEquals(1, lock.getWaitQueueLength(c));
1333	<	c.signal();
1334	<	lock.writeLock().unlock();
1335	<	Thread.sleep(SHORT_DELAY_MS);
1336	<	lock.writeLock().lock();
1337	<	assertFalse(lock.hasWaiters(c));
1338	<	assertEquals(0, lock.getWaitQueueLength(c));
1339	<	lock.writeLock().unlock();
1340	<	t.join(SHORT_DELAY_MS);
1510	<	assertFalse(t.isAlive());
1511	<	}
1512	<	catch (Exception ex) {
1513	<	unexpectedException();
1514	<	}
1327	>	t.start();
1328	>	Thread.sleep(SHORT_DELAY_MS);
1329	>	lock.writeLock().lock();
1330	>	assertTrue(lock.hasWaiters(c));
1331	>	assertEquals(1, lock.getWaitQueueLength(c));
1332	>	c.signal();
1333	>	lock.writeLock().unlock();
1334	>	Thread.sleep(SHORT_DELAY_MS);
1335	>	lock.writeLock().lock();
1336	>	assertFalse(lock.hasWaiters(c));
1337	>	assertEquals(0, lock.getWaitQueueLength(c));
1338	>	lock.writeLock().unlock();
1339	>	t.join(SHORT_DELAY_MS);
1340	>	assertFalse(t.isAlive());
1341		}
1342
1343		/**
1344		* getWaitQueueLength returns number of waiting threads
1345		*/
1346	<	public void testGetWaitQueueLength() {
1346	>	public void testGetWaitQueueLength() throws InterruptedException {
1347		final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
1348	<	final Condition c = (lock.writeLock().newCondition());
1349	<	Thread t = new Thread(new Runnable() {
1348	>	final Condition c = lock.writeLock().newCondition();
1349	>	Thread t = new Thread(new Runnable() {
1350		public void run() {
1351		try {
1352		lock.writeLock().lock();
#	Line 1529 | Line 1355 | public class ReentrantReadWriteLockTest
1355		c.await();
1356		lock.writeLock().unlock();
1357		}
1358	<	catch(InterruptedException e) {
1358	>	catch (InterruptedException e) {
1359		threadUnexpectedException();
1360		}
1361		}
1362		});
1363
1364	<	try {
1365	<	t.start();
1366	<	Thread.sleep(SHORT_DELAY_MS);
1367	<	lock.writeLock().lock();
1368	<	assertTrue(lock.hasWaiters(c));
1369	<	assertEquals(1, lock.getWaitQueueLength(c));
1370	<	c.signal();
1371	<	lock.writeLock().unlock();
1372	<	Thread.sleep(SHORT_DELAY_MS);
1373	<	lock.writeLock().lock();
1374	<	assertFalse(lock.hasWaiters(c));
1375	<	assertEquals(0, lock.getWaitQueueLength(c));
1376	<	lock.writeLock().unlock();
1377	<	t.join(SHORT_DELAY_MS);
1552	<	assertFalse(t.isAlive());
1553	<	}
1554	<	catch (Exception ex) {
1555	<	unexpectedException();
1556	<	}
1364	>	t.start();
1365	>	Thread.sleep(SHORT_DELAY_MS);
1366	>	lock.writeLock().lock();
1367	>	assertTrue(lock.hasWaiters(c));
1368	>	assertEquals(1, lock.getWaitQueueLength(c));
1369	>	c.signal();
1370	>	lock.writeLock().unlock();
1371	>	Thread.sleep(SHORT_DELAY_MS);
1372	>	lock.writeLock().lock();
1373	>	assertFalse(lock.hasWaiters(c));
1374	>	assertEquals(0, lock.getWaitQueueLength(c));
1375	>	lock.writeLock().unlock();
1376	>	t.join(SHORT_DELAY_MS);
1377	>	assertFalse(t.isAlive());
1378		}
1379
1380
1381		/**
1382		* getWaitingThreads returns only and all waiting threads
1383		*/
1384	<	public void testGetWaitingThreads() {
1385	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
1384	>	public void testGetWaitingThreads() throws InterruptedException {
1385	>	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
1386		final Condition c = lock.writeLock().newCondition();
1387	<	Thread t1 = new Thread(new Runnable() {
1387	>	Thread t1 = new Thread(new Runnable() {
1388		public void run() {
1389		try {
1390		lock.writeLock().lock();
#	Line 1571 | Line 1392 | public class ReentrantReadWriteLockTest
1392		c.await();
1393		lock.writeLock().unlock();
1394		}
1395	<	catch(InterruptedException e) {
1395	>	catch (InterruptedException e) {
1396		threadUnexpectedException();
1397		}
1398		}
1399		});
1400
1401	<	Thread t2 = new Thread(new Runnable() {
1401	>	Thread t2 = new Thread(new Runnable() {
1402		public void run() {
1403		try {
1404		lock.writeLock().lock();
#	Line 1585 | Line 1406 | public class ReentrantReadWriteLockTest
1406		c.await();
1407		lock.writeLock().unlock();
1408		}
1409	<	catch(InterruptedException e) {
1409	>	catch (InterruptedException e) {
1410		threadUnexpectedException();
1411		}
1412		}
1413		});
1414
1415	<	try {
1416	<	lock.writeLock().lock();
1417	<	assertTrue(lock.getWaitingThreads(c).isEmpty());
1418	<	lock.writeLock().unlock();
1419	<	t1.start();
1420	<	Thread.sleep(SHORT_DELAY_MS);
1421	<	t2.start();
1422	<	Thread.sleep(SHORT_DELAY_MS);
1423	<	lock.writeLock().lock();
1424	<	assertTrue(lock.hasWaiters(c));
1425	<	assertTrue(lock.getWaitingThreads(c).contains(t1));
1426	<	assertTrue(lock.getWaitingThreads(c).contains(t2));
1427	<	c.signalAll();
1428	<	lock.writeLock().unlock();
1429	<	Thread.sleep(SHORT_DELAY_MS);
1430	<	lock.writeLock().lock();
1431	<	assertFalse(lock.hasWaiters(c));
1432	<	assertTrue(lock.getWaitingThreads(c).isEmpty());
1433	<	lock.writeLock().unlock();
1434	<	t1.join(SHORT_DELAY_MS);
1435	<	t2.join(SHORT_DELAY_MS);
1436	<	assertFalse(t1.isAlive());
1616	<	assertFalse(t2.isAlive());
1617	<	}
1618	<	catch (Exception ex) {
1619	<	unexpectedException();
1620	<	}
1415	>	lock.writeLock().lock();
1416	>	assertTrue(lock.getWaitingThreads(c).isEmpty());
1417	>	lock.writeLock().unlock();
1418	>	t1.start();
1419	>	Thread.sleep(SHORT_DELAY_MS);
1420	>	t2.start();
1421	>	Thread.sleep(SHORT_DELAY_MS);
1422	>	lock.writeLock().lock();
1423	>	assertTrue(lock.hasWaiters(c));
1424	>	assertTrue(lock.getWaitingThreads(c).contains(t1));
1425	>	assertTrue(lock.getWaitingThreads(c).contains(t2));
1426	>	c.signalAll();
1427	>	lock.writeLock().unlock();
1428	>	Thread.sleep(SHORT_DELAY_MS);
1429	>	lock.writeLock().lock();
1430	>	assertFalse(lock.hasWaiters(c));
1431	>	assertTrue(lock.getWaitingThreads(c).isEmpty());
1432	>	lock.writeLock().unlock();
1433	>	t1.join(SHORT_DELAY_MS);
1434	>	t2.join(SHORT_DELAY_MS);
1435	>	assertFalse(t1.isAlive());
1436	>	assertFalse(t2.isAlive());
1437		}
1438
1439		/**

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