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

Comparing jsr166/src/test/tck/ReentrantReadWriteLockTest.java (file contents):
Revision 1.34 by jsr166, Tue Nov 17 14:45:32 2009 UTC vs.
Revision 1.48 by jsr166, Mon May 2 00:06:45 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.io.*;
14		import java.util.*;
15
16		public class ReentrantReadWriteLockTest 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(ReentrantReadWriteLockTest.class);
21	>	return new TestSuite(ReentrantReadWriteLockTest.class);
22		}
23
24		/**
#	Line 58 | Line 59 | public class ReentrantReadWriteLockTest
59		}
60
61		/**
62	+	* Releases lock, checking that it had a hold count of 1.
63	+	*/
64	+	void releaseLock(ReentrantReadWriteLock.WriteLock lock) {
65	+	assertTrue(lock.isHeldByCurrentThread());
66	+	lock.unlock();
67	+	assertFalse(lock.isHeldByCurrentThread());
68	+	}
69	+
70	+	/**
71		* Constructor sets given fairness, and is in unlocked state
72		*/
73		public void testConstructor() {
74	<	ReentrantReadWriteLock rl = new ReentrantReadWriteLock();
74	>	ReentrantReadWriteLock rl = new ReentrantReadWriteLock();
75		assertFalse(rl.isFair());
76		assertFalse(rl.isWriteLocked());
77		assertEquals(0, rl.getReadLockCount());
78	<	ReentrantReadWriteLock r2 = new ReentrantReadWriteLock(true);
78	>	ReentrantReadWriteLock r2 = new ReentrantReadWriteLock(true);
79		assertTrue(r2.isFair());
80		assertFalse(r2.isWriteLocked());
81		assertEquals(0, r2.getReadLockCount());
82	<	ReentrantReadWriteLock r3 = new ReentrantReadWriteLock(false);
82	>	ReentrantReadWriteLock r3 = new ReentrantReadWriteLock(false);
83		assertFalse(r3.isFair());
84		assertFalse(r3.isWriteLocked());
85		assertEquals(0, r3.getReadLockCount());
#	Line 79 | Line 89 | public class ReentrantReadWriteLockTest
89		* write-locking and read-locking an unlocked lock succeed
90		*/
91		public void testLock() {
92	<	ReentrantReadWriteLock rl = new ReentrantReadWriteLock();
92	>	ReentrantReadWriteLock rl = new ReentrantReadWriteLock();
93		rl.writeLock().lock();
94		assertTrue(rl.isWriteLocked());
95		assertTrue(rl.isWriteLockedByCurrentThread());
#	Line 105 | Line 115 | public class ReentrantReadWriteLockTest
115		* locking an unlocked fair lock succeeds
116		*/
117		public void testFairLock() {
118	<	ReentrantReadWriteLock rl = new ReentrantReadWriteLock(true);
118	>	ReentrantReadWriteLock rl = new ReentrantReadWriteLock(true);
119		rl.writeLock().lock();
120		assertTrue(rl.isWriteLocked());
121		assertTrue(rl.isWriteLockedByCurrentThread());
#	Line 130 | Line 140 | public class ReentrantReadWriteLockTest
140		* getWriteHoldCount returns number of recursive holds
141		*/
142		public void testGetWriteHoldCount() {
143	<	ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
144	<	for (int i = 1; i <= SIZE; i++) {
145	<	lock.writeLock().lock();
146	<	assertEquals(i,lock.getWriteHoldCount());
147	<	}
148	<	for (int i = SIZE; i > 0; i--) {
149	<	lock.writeLock().unlock();
150	<	assertEquals(i-1,lock.getWriteHoldCount());
151	<	}
143	>	ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
144	>	for (int i = 1; i <= SIZE; i++) {
145	>	lock.writeLock().lock();
146	>	assertEquals(i,lock.getWriteHoldCount());
147	>	}
148	>	for (int i = SIZE; i > 0; i--) {
149	>	lock.writeLock().unlock();
150	>	assertEquals(i-1,lock.getWriteHoldCount());
151	>	}
152		}
153
154		/**
155		* WriteLock.getHoldCount returns number of recursive holds
156		*/
157		public void testGetHoldCount() {
158	<	ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
159	<	for (int i = 1; i <= SIZE; i++) {
160	<	lock.writeLock().lock();
161	<	assertEquals(i,lock.writeLock().getHoldCount());
162	<	}
163	<	for (int i = SIZE; i > 0; i--) {
164	<	lock.writeLock().unlock();
165	<	assertEquals(i-1,lock.writeLock().getHoldCount());
166	<	}
158	>	ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
159	>	for (int i = 1; i <= SIZE; i++) {
160	>	lock.writeLock().lock();
161	>	assertEquals(i,lock.writeLock().getHoldCount());
162	>	}
163	>	for (int i = SIZE; i > 0; i--) {
164	>	lock.writeLock().unlock();
165	>	assertEquals(i-1,lock.writeLock().getHoldCount());
166	>	}
167		}
168
169		/**
170		* getReadHoldCount returns number of recursive holds
171		*/
172		public void testGetReadHoldCount() {
173	<	ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
174	<	for (int i = 1; i <= SIZE; i++) {
175	<	lock.readLock().lock();
176	<	assertEquals(i,lock.getReadHoldCount());
177	<	}
178	<	for (int i = SIZE; i > 0; i--) {
179	<	lock.readLock().unlock();
180	<	assertEquals(i-1,lock.getReadHoldCount());
181	<	}
173	>	ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
174	>	for (int i = 1; i <= SIZE; i++) {
175	>	lock.readLock().lock();
176	>	assertEquals(i,lock.getReadHoldCount());
177	>	}
178	>	for (int i = SIZE; i > 0; i--) {
179	>	lock.readLock().unlock();
180	>	assertEquals(i-1,lock.getReadHoldCount());
181	>	}
182		}
183
184
#	Line 176 | Line 186 | public class ReentrantReadWriteLockTest
186		* write-unlocking an unlocked lock throws IllegalMonitorStateException
187		*/
188		public void testUnlock_IllegalMonitorStateException() {
189	<	ReentrantReadWriteLock rl = new ReentrantReadWriteLock();
190	<	try {
191	<	rl.writeLock().unlock();
192	<	shouldThrow();
193	<	} catch (IllegalMonitorStateException success) {}
189	>	ReentrantReadWriteLock rl = new ReentrantReadWriteLock();
190	>	try {
191	>	rl.writeLock().unlock();
192	>	shouldThrow();
193	>	} catch (IllegalMonitorStateException success) {}
194		}
195
196
#	Line 188 | Line 198 | public class ReentrantReadWriteLockTest
198		* write-lockInterruptibly is interruptible
199		*/
200		public void testWriteLockInterruptibly_Interrupted() throws Exception {
201	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
202	<	Thread t = new Thread(new CheckedInterruptedRunnable() {
201	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
202	>	lock.writeLock().lock();
203	>	Thread t = newStartedThread(new CheckedInterruptedRunnable() {
204		public void realRun() throws InterruptedException {
205		lock.writeLock().lockInterruptibly();
195	–	lock.writeLock().unlock();
196	–	lock.writeLock().lockInterruptibly();
197	–	lock.writeLock().unlock();
206		}});
207
200	–	lock.writeLock().lock();
201	–	t.start();
208		Thread.sleep(SHORT_DELAY_MS);
209		t.interrupt();
204	–	Thread.sleep(SHORT_DELAY_MS);
205	–	lock.writeLock().unlock();
210		t.join();
211	+	releaseLock(lock.writeLock());
212		}
213
214		/**
215		* timed write-tryLock is interruptible
216		*/
217		public void testWriteTryLock_Interrupted() throws InterruptedException {
218	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
219	<	lock.writeLock().lock();
220	<	Thread t = new Thread(new CheckedInterruptedRunnable() {
218	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
219	>	lock.writeLock().lock();
220	>	Thread t = newStartedThread(new CheckedInterruptedRunnable() {
221		public void realRun() throws InterruptedException {
222	<	lock.writeLock().tryLock(1000,TimeUnit.MILLISECONDS);
222	>	lock.writeLock().tryLock(SMALL_DELAY_MS, MILLISECONDS);
223		}});
224
225	<	t.start();
225	>	Thread.sleep(SHORT_DELAY_MS);
226		t.interrupt();
222	–	lock.writeLock().unlock();
227		t.join();
228	+	releaseLock(lock.writeLock());
229		}
230
231		/**
232		* read-lockInterruptibly is interruptible
233		*/
234		public void testReadLockInterruptibly_Interrupted() throws InterruptedException {
235	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
236	<	lock.writeLock().lock();
237	<	Thread t = new Thread(new CheckedInterruptedRunnable() {
235	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
236	>	lock.writeLock().lock();
237	>	Thread t = newStartedThread(new CheckedInterruptedRunnable() {
238		public void realRun() throws InterruptedException {
239		lock.readLock().lockInterruptibly();
240		}});
241
237	–	t.start();
242		Thread.sleep(SHORT_DELAY_MS);
243		t.interrupt();
240	–	Thread.sleep(SHORT_DELAY_MS);
241	–	lock.writeLock().unlock();
244		t.join();
245	+	releaseLock(lock.writeLock());
246		}
247
248		/**
249		* timed read-tryLock is interruptible
250		*/
251		public void testReadTryLock_Interrupted() throws InterruptedException {
252	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
253	<	lock.writeLock().lock();
254	<	Thread t = new Thread(new CheckedInterruptedRunnable() {
252	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
253	>	lock.writeLock().lock();
254	>	Thread t = newStartedThread(new CheckedInterruptedRunnable() {
255		public void realRun() throws InterruptedException {
256	<	lock.readLock().tryLock(1000,TimeUnit.MILLISECONDS);
256	>	lock.readLock().tryLock(LONG_DELAY_MS, MILLISECONDS);
257		}});
258
259	<	t.start();
259	>	Thread.sleep(SHORT_DELAY_MS);
260		t.interrupt();
261		t.join();
262		}
#	Line 263 | Line 266 | public class ReentrantReadWriteLockTest
266		* write-tryLock fails if locked
267		*/
268		public void testWriteTryLockWhenLocked() throws InterruptedException {
269	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
270	<	lock.writeLock().lock();
271	<	Thread t = new Thread(new Runnable() {
272	<	public void run() {
273	<	threadAssertFalse(lock.writeLock().tryLock());
274	<	}
272	<	});
269	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
270	>	lock.writeLock().lock();
271	>	Thread t = newStartedThread(new CheckedRunnable() {
272	>	public void realRun() {
273	>	assertFalse(lock.writeLock().tryLock());
274	>	}});
275
274	–	t.start();
276		t.join();
277		lock.writeLock().unlock();
278		}
#	Line 280 | Line 281 | public class ReentrantReadWriteLockTest
281		* read-tryLock fails if locked
282		*/
283		public void testReadTryLockWhenLocked() throws InterruptedException {
284	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
285	<	lock.writeLock().lock();
286	<	Thread t = new Thread(new Runnable() {
287	<	public void run() {
288	<	threadAssertFalse(lock.readLock().tryLock());
289	<	}
289	<	});
284	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
285	>	lock.writeLock().lock();
286	>	Thread t = newStartedThread(new CheckedRunnable() {
287	>	public void realRun() {
288	>	assertFalse(lock.readLock().tryLock());
289	>	}});
290
291	–	t.start();
291		t.join();
292		lock.writeLock().unlock();
293		}
#	Line 297 | Line 296 | public class ReentrantReadWriteLockTest
296		* Multiple threads can hold a read lock when not write-locked
297		*/
298		public void testMultipleReadLocks() throws InterruptedException {
299	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
300	<	lock.readLock().lock();
301	<	Thread t = new Thread(new Runnable() {
302	<	public void run() {
303	<	threadAssertTrue(lock.readLock().tryLock());
304	<	lock.readLock().unlock();
305	<	}
307	<	});
299	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
300	>	lock.readLock().lock();
301	>	Thread t = newStartedThread(new CheckedRunnable() {
302	>	public void realRun() {
303	>	assertTrue(lock.readLock().tryLock());
304	>	lock.readLock().unlock();
305	>	}});
306
309	–	t.start();
307		t.join();
308		lock.readLock().unlock();
309		}
#	Line 315 | Line 312 | public class ReentrantReadWriteLockTest
312		* A writelock succeeds after reading threads unlock
313		*/
314		public void testWriteAfterMultipleReadLocks() throws InterruptedException {
315	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
316	<	lock.readLock().lock();
317	<	Thread t1 = new Thread(new Runnable() {
318	<	public void run() {
319	<	lock.readLock().lock();
320	<	lock.readLock().unlock();
321	<	}
322	<	});
323	<	Thread t2 = new Thread(new Runnable() {
324	<	public void run() {
325	<	lock.writeLock().lock();
326	<	lock.writeLock().unlock();
330	<	}
331	<	});
315	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
316	>	lock.readLock().lock();
317	>	Thread t1 = newStartedThread(new CheckedRunnable() {
318	>	public void realRun() {
319	>	lock.readLock().lock();
320	>	lock.readLock().unlock();
321	>	}});
322	>	Thread t2 = newStartedThread(new CheckedRunnable() {
323	>	public void realRun() {
324	>	lock.writeLock().lock();
325	>	lock.writeLock().unlock();
326	>	}});
327
333	–	t1.start();
334	–	t2.start();
328		Thread.sleep(SHORT_DELAY_MS);
329		lock.readLock().unlock();
330		t1.join(MEDIUM_DELAY_MS);
#	Line 344 | Line 337 | public class ReentrantReadWriteLockTest
337		* Readlocks succeed after a writing thread unlocks
338		*/
339		public void testReadAfterWriteLock() throws InterruptedException {
340	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
341	<	lock.writeLock().lock();
342	<	Thread t1 = new Thread(new Runnable() {
343	<	public void run() {
344	<	lock.readLock().lock();
345	<	lock.readLock().unlock();
346	<	}
347	<	});
348	<	Thread t2 = new Thread(new Runnable() {
349	<	public void run() {
350	<	lock.readLock().lock();
351	<	lock.readLock().unlock();
359	<	}
360	<	});
340	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
341	>	lock.writeLock().lock();
342	>	Thread t1 = newStartedThread(new CheckedRunnable() {
343	>	public void realRun() {
344	>	lock.readLock().lock();
345	>	lock.readLock().unlock();
346	>	}});
347	>	Thread t2 = newStartedThread(new CheckedRunnable() {
348	>	public void realRun() {
349	>	lock.readLock().lock();
350	>	lock.readLock().unlock();
351	>	}});
352
362	–	t1.start();
363	–	t2.start();
353		Thread.sleep(SHORT_DELAY_MS);
354		lock.writeLock().unlock();
355		t1.join(MEDIUM_DELAY_MS);
#	Line 373 | Line 362 | public class ReentrantReadWriteLockTest
362		* Read trylock succeeds if write locked by current thread
363		*/
364		public void testReadHoldingWriteLock() {
365	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
366	<	lock.writeLock().lock();
365	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
366	>	lock.writeLock().lock();
367		assertTrue(lock.readLock().tryLock());
368		lock.readLock().unlock();
369		lock.writeLock().unlock();
#	Line 385 | Line 374 | public class ReentrantReadWriteLockTest
374		* other threads are waiting for readlock
375		*/
376		public void testReadHoldingWriteLock2() throws InterruptedException {
377	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
378	<	lock.writeLock().lock();
379	<	Thread t1 = new Thread(new Runnable() {
380	<	public void run() {
381	<	lock.readLock().lock();
382	<	lock.readLock().unlock();
383	<	}
384	<	});
385	<	Thread t2 = new Thread(new Runnable() {
386	<	public void run() {
387	<	lock.readLock().lock();
388	<	lock.readLock().unlock();
400	<	}
401	<	});
377	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
378	>	lock.writeLock().lock();
379	>	Thread t1 = newStartedThread(new CheckedRunnable() {
380	>	public void realRun() {
381	>	lock.readLock().lock();
382	>	lock.readLock().unlock();
383	>	}});
384	>	Thread t2 = newStartedThread(new CheckedRunnable() {
385	>	public void realRun() {
386	>	lock.readLock().lock();
387	>	lock.readLock().unlock();
388	>	}});
389
403	–	t1.start();
404	–	t2.start();
390		lock.readLock().lock();
391		lock.readLock().unlock();
392		Thread.sleep(SHORT_DELAY_MS);
#	Line 415 | Line 400 | public class ReentrantReadWriteLockTest
400		}
401
402		/**
403	<	*  Read lock succeeds if write locked by current thread even if
403	>	* Read lock succeeds if write locked by current thread even if
404		* other threads are waiting for writelock
405		*/
406		public void testReadHoldingWriteLock3() throws InterruptedException {
407	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
408	<	lock.writeLock().lock();
409	<	Thread t1 = new Thread(new Runnable() {
410	<	public void run() {
411	<	lock.writeLock().lock();
412	<	lock.writeLock().unlock();
413	<	}
414	<	});
415	<	Thread t2 = new Thread(new Runnable() {
416	<	public void run() {
417	<	lock.writeLock().lock();
418	<	lock.writeLock().unlock();
434	<	}
435	<	});
407	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
408	>	lock.writeLock().lock();
409	>	Thread t1 = newStartedThread(new CheckedRunnable() {
410	>	public void realRun() {
411	>	lock.writeLock().lock();
412	>	lock.writeLock().unlock();
413	>	}});
414	>	Thread t2 = newStartedThread(new CheckedRunnable() {
415	>	public void realRun() {
416	>	lock.writeLock().lock();
417	>	lock.writeLock().unlock();
418	>	}});
419
437	–	t1.start();
438	–	t2.start();
420		lock.readLock().lock();
421		lock.readLock().unlock();
422		Thread.sleep(SHORT_DELAY_MS);
#	Line 450 | Line 431 | public class ReentrantReadWriteLockTest
431
432
433		/**
434	<	*  Write lock succeeds if write locked by current thread even if
434	>	* Write lock succeeds if write locked by current thread even if
435		* other threads are waiting for writelock
436		*/
437		public void testWriteHoldingWriteLock4() throws InterruptedException {
438	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
439	<	lock.writeLock().lock();
440	<	Thread t1 = new Thread(new Runnable() {
441	<	public void run() {
442	<	lock.writeLock().lock();
443	<	lock.writeLock().unlock();
444	<	}
445	<	});
446	<	Thread t2 = new Thread(new Runnable() {
447	<	public void run() {
448	<	lock.writeLock().lock();
449	<	lock.writeLock().unlock();
469	<	}
470	<	});
438	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
439	>	lock.writeLock().lock();
440	>	Thread t1 = newStartedThread(new CheckedRunnable() {
441	>	public void realRun() {
442	>	lock.writeLock().lock();
443	>	lock.writeLock().unlock();
444	>	}});
445	>	Thread t2 = newStartedThread(new CheckedRunnable() {
446	>	public void realRun() {
447	>	lock.writeLock().lock();
448	>	lock.writeLock().unlock();
449	>	}});
450
472	–	t1.start();
473	–	t2.start();
451		lock.writeLock().lock();
452		lock.writeLock().unlock();
453		Thread.sleep(SHORT_DELAY_MS);
#	Line 488 | Line 465 | public class ReentrantReadWriteLockTest
465		* Fair Read trylock succeeds if write locked by current thread
466		*/
467		public void testReadHoldingWriteLockFair() {
468	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true);
469	<	lock.writeLock().lock();
468	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true);
469	>	lock.writeLock().lock();
470		assertTrue(lock.readLock().tryLock());
471		lock.readLock().unlock();
472		lock.writeLock().unlock();
#	Line 500 | Line 477 | public class ReentrantReadWriteLockTest
477		* other threads are waiting for readlock
478		*/
479		public void testReadHoldingWriteLockFair2() throws InterruptedException {
480	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true);
481	<	lock.writeLock().lock();
482	<	Thread t1 = new Thread(new Runnable() {
483	<	public void run() {
484	<	lock.readLock().lock();
485	<	lock.readLock().unlock();
486	<	}
487	<	});
488	<	Thread t2 = new Thread(new Runnable() {
489	<	public void run() {
490	<	lock.readLock().lock();
491	<	lock.readLock().unlock();
515	<	}
516	<	});
480	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true);
481	>	lock.writeLock().lock();
482	>	Thread t1 = newStartedThread(new CheckedRunnable() {
483	>	public void realRun() {
484	>	lock.readLock().lock();
485	>	lock.readLock().unlock();
486	>	}});
487	>	Thread t2 = newStartedThread(new CheckedRunnable() {
488	>	public void realRun() {
489	>	lock.readLock().lock();
490	>	lock.readLock().unlock();
491	>	}});
492
518	–	t1.start();
519	–	t2.start();
493		lock.readLock().lock();
494		lock.readLock().unlock();
495		Thread.sleep(SHORT_DELAY_MS);
#	Line 535 | Line 508 | public class ReentrantReadWriteLockTest
508		* other threads are waiting for writelock
509		*/
510		public void testReadHoldingWriteLockFair3() throws InterruptedException {
511	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true);
512	<	lock.writeLock().lock();
513	<	Thread t1 = new Thread(new Runnable() {
514	<	public void run() {
515	<	lock.writeLock().lock();
516	<	lock.writeLock().unlock();
517	<	}
518	<	});
519	<	Thread t2 = new Thread(new Runnable() {
520	<	public void run() {
521	<	lock.writeLock().lock();
522	<	lock.writeLock().unlock();
550	<	}
551	<	});
511	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true);
512	>	lock.writeLock().lock();
513	>	Thread t1 = newStartedThread(new CheckedRunnable() {
514	>	public void realRun() {
515	>	lock.writeLock().lock();
516	>	lock.writeLock().unlock();
517	>	}});
518	>	Thread t2 = newStartedThread(new CheckedRunnable() {
519	>	public void realRun() {
520	>	lock.writeLock().lock();
521	>	lock.writeLock().unlock();
522	>	}});
523
553	–	t1.start();
554	–	t2.start();
524		lock.readLock().lock();
525		lock.readLock().unlock();
526		Thread.sleep(SHORT_DELAY_MS);
#	Line 570 | Line 539 | public class ReentrantReadWriteLockTest
539		* other threads are waiting for writelock
540		*/
541		public void testWriteHoldingWriteLockFair4() throws InterruptedException {
542	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true);
543	<	lock.writeLock().lock();
544	<	Thread t1 = new Thread(new Runnable() {
545	<	public void run() {
546	<	lock.writeLock().lock();
547	<	lock.writeLock().unlock();
548	<	}
549	<	});
550	<	Thread t2 = new Thread(new Runnable() {
551	<	public void run() {
552	<	lock.writeLock().lock();
553	<	lock.writeLock().unlock();
585	<	}
586	<	});
542	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true);
543	>	lock.writeLock().lock();
544	>	Thread t1 = newStartedThread(new CheckedRunnable() {
545	>	public void realRun() {
546	>	lock.writeLock().lock();
547	>	lock.writeLock().unlock();
548	>	}});
549	>	Thread t2 = newStartedThread(new CheckedRunnable() {
550	>	public void realRun() {
551	>	lock.writeLock().lock();
552	>	lock.writeLock().unlock();
553	>	}});
554
588	–	t1.start();
589	–	t2.start();
555		Thread.sleep(SHORT_DELAY_MS);
556		assertTrue(lock.isWriteLockedByCurrentThread());
557	<	assertTrue(lock.getWriteHoldCount() == 1);
557	>	assertEquals(1, lock.getWriteHoldCount());
558		lock.writeLock().lock();
559	<	assertTrue(lock.getWriteHoldCount() == 2);
559	>	assertEquals(2, lock.getWriteHoldCount());
560		lock.writeLock().unlock();
561		lock.writeLock().lock();
562		lock.writeLock().unlock();
#	Line 607 | Line 572 | public class ReentrantReadWriteLockTest
572		* Read tryLock succeeds if readlocked but not writelocked
573		*/
574		public void testTryLockWhenReadLocked() throws InterruptedException {
575	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
576	<	lock.readLock().lock();
577	<	Thread t = new Thread(new Runnable() {
578	<	public void run() {
579	<	threadAssertTrue(lock.readLock().tryLock());
580	<	lock.readLock().unlock();
581	<	}
617	<	});
575	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
576	>	lock.readLock().lock();
577	>	Thread t = newStartedThread(new CheckedRunnable() {
578	>	public void realRun() {
579	>	assertTrue(lock.readLock().tryLock());
580	>	lock.readLock().unlock();
581	>	}});
582
619	–	t.start();
583		t.join();
584		lock.readLock().unlock();
585		}
586
624	–
625	–
587		/**
588		* write tryLock fails when readlocked
589		*/
590		public void testWriteTryLockWhenReadLocked() throws InterruptedException {
591	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
592	<	lock.readLock().lock();
593	<	Thread t = new Thread(new Runnable() {
594	<	public void run() {
595	<	threadAssertFalse(lock.writeLock().tryLock());
596	<	}
636	<	});
591	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
592	>	lock.readLock().lock();
593	>	Thread t = newStartedThread(new CheckedRunnable() {
594	>	public void realRun() {
595	>	assertFalse(lock.writeLock().tryLock());
596	>	}});
597
638	–	t.start();
598		t.join();
599		lock.readLock().unlock();
600		}
#	Line 645 | Line 604 | public class ReentrantReadWriteLockTest
604		* Fair Read tryLock succeeds if readlocked but not writelocked
605		*/
606		public void testTryLockWhenReadLockedFair() throws InterruptedException {
607	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true);
608	<	lock.readLock().lock();
609	<	Thread t = new Thread(new Runnable() {
610	<	public void run() {
611	<	threadAssertTrue(lock.readLock().tryLock());
612	<	lock.readLock().unlock();
613	<	}
655	<	});
607	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true);
608	>	lock.readLock().lock();
609	>	Thread t = newStartedThread(new CheckedRunnable() {
610	>	public void realRun() {
611	>	assertTrue(lock.readLock().tryLock());
612	>	lock.readLock().unlock();
613	>	}});
614
657	–	t.start();
615		t.join();
616		lock.readLock().unlock();
617		}
#	Line 665 | Line 622 | public class ReentrantReadWriteLockTest
622		* Fair write tryLock fails when readlocked
623		*/
624		public void testWriteTryLockWhenReadLockedFair() throws InterruptedException {
625	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true);
626	<	lock.readLock().lock();
627	<	Thread t = new Thread(new Runnable() {
628	<	public void run() {
629	<	threadAssertFalse(lock.writeLock().tryLock());
630	<	}
674	<	});
625	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true);
626	>	lock.readLock().lock();
627	>	Thread t = newStartedThread(new CheckedRunnable() {
628	>	public void realRun() {
629	>	assertFalse(lock.writeLock().tryLock());
630	>	}});
631
676	–	t.start();
632		t.join();
633		lock.readLock().unlock();
634		}
#	Line 684 | Line 639 | public class ReentrantReadWriteLockTest
639		* write timed tryLock times out if locked
640		*/
641		public void testWriteTryLock_Timeout() throws InterruptedException {
642	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
643	<	lock.writeLock().lock();
644	<	Thread t = new Thread(new CheckedRunnable() {
642	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
643	>	lock.writeLock().lock();
644	>	Thread t = newStartedThread(new CheckedRunnable() {
645		public void realRun() throws InterruptedException {
646	<	threadAssertFalse(lock.writeLock().tryLock(1, TimeUnit.MILLISECONDS));
646	>	assertFalse(lock.writeLock().tryLock(1, MILLISECONDS));
647		}});
648
694	–	t.start();
649		t.join();
650		assertTrue(lock.writeLock().isHeldByCurrentThread());
651		lock.writeLock().unlock();
#	Line 701 | Line 655 | public class ReentrantReadWriteLockTest
655		* read timed tryLock times out if write-locked
656		*/
657		public void testReadTryLock_Timeout() throws InterruptedException {
658	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
659	<	lock.writeLock().lock();
660	<	Thread t = new Thread(new CheckedRunnable() {
658	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
659	>	lock.writeLock().lock();
660	>	Thread t = newStartedThread(new CheckedRunnable() {
661		public void realRun() throws InterruptedException {
662	<	threadAssertFalse(lock.readLock().tryLock(1, TimeUnit.MILLISECONDS));
662	>	assertFalse(lock.readLock().tryLock(1, MILLISECONDS));
663		}});
664
711	–	t.start();
665		t.join();
666		assertTrue(lock.writeLock().isHeldByCurrentThread());
667		lock.writeLock().unlock();
#	Line 719 | Line 672 | public class ReentrantReadWriteLockTest
672		* write lockInterruptibly succeeds if lock free else is interruptible
673		*/
674		public void testWriteLockInterruptibly() throws InterruptedException {
675	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
675	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
676		lock.writeLock().lockInterruptibly();
677	<	Thread t = new Thread(new CheckedInterruptedRunnable() {
677	>	Thread t = newStartedThread(new CheckedInterruptedRunnable() {
678		public void realRun() throws InterruptedException {
679		lock.writeLock().lockInterruptibly();
680		}});
681
729	–	t.start();
682		Thread.sleep(SHORT_DELAY_MS);
683		t.interrupt();
684		Thread.sleep(SHORT_DELAY_MS);
#	Line 735 | Line 687 | public class ReentrantReadWriteLockTest
687		}
688
689		/**
690	<	*  read lockInterruptibly succeeds if lock free else is interruptible
690	>	* read lockInterruptibly succeeds if lock free else is interruptible
691		*/
692		public void testReadLockInterruptibly() throws InterruptedException {
693	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
693	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
694		lock.writeLock().lockInterruptibly();
695	<	Thread t = new Thread(new CheckedInterruptedRunnable() {
695	>	Thread t = newStartedThread(new CheckedInterruptedRunnable() {
696		public void realRun() throws InterruptedException {
697		lock.readLock().lockInterruptibly();
698		}});
699
748	–	t.start();
700		Thread.sleep(SHORT_DELAY_MS);
701		t.interrupt();
702		t.join();
#	Line 756 | Line 707 | public class ReentrantReadWriteLockTest
707		* Calling await without holding lock throws IllegalMonitorStateException
708		*/
709		public void testAwait_IllegalMonitor() throws InterruptedException {
710	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
710	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
711		final Condition c = lock.writeLock().newCondition();
712		try {
713		c.await();
#	Line 768 | Line 719 | public class ReentrantReadWriteLockTest
719		* Calling signal without holding lock throws IllegalMonitorStateException
720		*/
721		public void testSignal_IllegalMonitor() {
722	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
722	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
723		final Condition c = lock.writeLock().newCondition();
724		try {
725		c.signal();
#	Line 780 | Line 731 | public class ReentrantReadWriteLockTest
731		* awaitNanos without a signal times out
732		*/
733		public void testAwaitNanos_Timeout() throws InterruptedException {
734	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
734	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
735		final Condition c = lock.writeLock().newCondition();
736
737		lock.writeLock().lock();
#	Line 791 | Line 742 | public class ReentrantReadWriteLockTest
742
743
744		/**
745	<	*  timed await without a signal times out
745	>	* timed await without a signal times out
746		*/
747		public void testAwait_Timeout() throws InterruptedException {
748	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
748	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
749		final Condition c = lock.writeLock().newCondition();
750		lock.writeLock().lock();
751	<	assertFalse(c.await(SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
751	>	assertFalse(c.await(SHORT_DELAY_MS, MILLISECONDS));
752		lock.writeLock().unlock();
753		}
754
#	Line 805 | Line 756 | public class ReentrantReadWriteLockTest
756		* awaitUntil without a signal times out
757		*/
758		public void testAwaitUntil_Timeout() throws InterruptedException {
759	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
759	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
760		final Condition c = lock.writeLock().newCondition();
761		lock.writeLock().lock();
762		java.util.Date d = new java.util.Date();
#	Line 817 | Line 768 | public class ReentrantReadWriteLockTest
768		* await returns when signalled
769		*/
770		public void testAwait() throws InterruptedException {
771	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
771	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
772		final Condition c = lock.writeLock().newCondition();
773	<	Thread t = new Thread(new CheckedRunnable() {
773	>	Thread t = newStartedThread(new CheckedRunnable() {
774		public void realRun() throws InterruptedException {
775		lock.writeLock().lock();
776		c.await();
777		lock.writeLock().unlock();
778		}});
779
829	–	t.start();
780		Thread.sleep(SHORT_DELAY_MS);
781		lock.writeLock().lock();
782		c.signal();
#	Line 894 | Line 844 | public class ReentrantReadWriteLockTest
844		* await is interruptible
845		*/
846		public void testAwait_Interrupt() throws InterruptedException {
847	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
847	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
848		final Condition c = lock.writeLock().newCondition();
849	<	Thread t = new Thread(new CheckedInterruptedRunnable() {
849	>	Thread t = newStartedThread(new CheckedInterruptedRunnable() {
850		public void realRun() throws InterruptedException {
851		lock.writeLock().lock();
852		c.await();
853		lock.writeLock().unlock();
854		}});
855
906	–	t.start();
856		Thread.sleep(SHORT_DELAY_MS);
857		t.interrupt();
858		t.join(SHORT_DELAY_MS);
#	Line 914 | Line 863 | public class ReentrantReadWriteLockTest
863		* awaitNanos is interruptible
864		*/
865		public void testAwaitNanos_Interrupt() throws InterruptedException {
866	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
866	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
867		final Condition c = lock.writeLock().newCondition();
868	<	Thread t = new Thread(new CheckedInterruptedRunnable() {
868	>	Thread t = newStartedThread(new CheckedInterruptedRunnable() {
869		public void realRun() throws InterruptedException {
870		lock.writeLock().lock();
871	<	c.awaitNanos(SHORT_DELAY_MS * 2 * 1000000);
871	>	c.awaitNanos(MILLISECONDS.toNanos(LONG_DELAY_MS));
872		lock.writeLock().unlock();
873		}});
874
926	–	t.start();
875		Thread.sleep(SHORT_DELAY_MS);
876		t.interrupt();
877		t.join(SHORT_DELAY_MS);
#	Line 934 | Line 882 | public class ReentrantReadWriteLockTest
882		* awaitUntil is interruptible
883		*/
884		public void testAwaitUntil_Interrupt() throws InterruptedException {
885	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
885	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
886		final Condition c = lock.writeLock().newCondition();
887	<	Thread t = new Thread(new CheckedInterruptedRunnable() {
887	>	Thread t = newStartedThread(new CheckedInterruptedRunnable() {
888		public void realRun() throws InterruptedException {
889		lock.writeLock().lock();
890		java.util.Date d = new java.util.Date();
#	Line 944 | Line 892 | public class ReentrantReadWriteLockTest
892		lock.writeLock().unlock();
893		}});
894
947	–	t.start();
895		Thread.sleep(SHORT_DELAY_MS);
896		t.interrupt();
897		t.join(SHORT_DELAY_MS);
#	Line 955 | Line 902 | public class ReentrantReadWriteLockTest
902		* signalAll wakes up all threads
903		*/
904		public void testSignalAll() throws InterruptedException {
905	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
905	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
906		final Condition c = lock.writeLock().newCondition();
907	<	Thread t1 = new Thread(new CheckedRunnable() {
907	>	Thread t1 = newStartedThread(new CheckedRunnable() {
908		public void realRun() throws InterruptedException {
909		lock.writeLock().lock();
910		c.await();
911		lock.writeLock().unlock();
912		}});
913
914	<	Thread t2 = new Thread(new CheckedRunnable() {
914	>	Thread t2 = newStartedThread(new CheckedRunnable() {
915		public void realRun() throws InterruptedException {
916		lock.writeLock().lock();
917		c.await();
918		lock.writeLock().unlock();
919		}});
920
974	–	t1.start();
975	–	t2.start();
921		Thread.sleep(SHORT_DELAY_MS);
922		lock.writeLock().lock();
923		c.signalAll();
#	Line 1007 | Line 952 | public class ReentrantReadWriteLockTest
952		* hasQueuedThreads reports whether there are waiting threads
953		*/
954		public void testhasQueuedThreads() throws InterruptedException {
955	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
955	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
956		Thread t1 = new Thread(new InterruptedLockRunnable(lock));
957		Thread t2 = new Thread(new InterruptibleLockRunnable(lock));
958		assertFalse(lock.hasQueuedThreads());
#	Line 1032 | Line 977 | public class ReentrantReadWriteLockTest
977		* hasQueuedThread(null) throws NPE
978		*/
979		public void testHasQueuedThreadNPE() {
980	<	final ReentrantReadWriteLock sync = new ReentrantReadWriteLock();
980	>	final ReentrantReadWriteLock sync = new ReentrantReadWriteLock();
981		try {
982		sync.hasQueuedThread(null);
983		shouldThrow();
#	Line 1043 | Line 988 | public class ReentrantReadWriteLockTest
988		* hasQueuedThread reports whether a thread is queued.
989		*/
990		public void testHasQueuedThread() throws InterruptedException {
991	<	final ReentrantReadWriteLock sync = new ReentrantReadWriteLock();
991	>	final ReentrantReadWriteLock sync = new ReentrantReadWriteLock();
992		Thread t1 = new Thread(new InterruptedLockRunnable(sync));
993		Thread t2 = new Thread(new InterruptibleLockRunnable(sync));
994		assertFalse(sync.hasQueuedThread(t1));
#	Line 1074 | Line 1019 | public class ReentrantReadWriteLockTest
1019		* getQueueLength reports number of waiting threads
1020		*/
1021		public void testGetQueueLength() throws InterruptedException {
1022	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
1022	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
1023		Thread t1 = new Thread(new InterruptedLockRunnable(lock));
1024		Thread t2 = new Thread(new InterruptibleLockRunnable(lock));
1025		assertEquals(0, lock.getQueueLength());
#	Line 1099 | Line 1044 | public class ReentrantReadWriteLockTest
1044		* getQueuedThreads includes waiting threads
1045		*/
1046		public void testGetQueuedThreads() throws InterruptedException {
1047	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
1047	>	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
1048		Thread t1 = new Thread(new InterruptedLockRunnable(lock));
1049		Thread t2 = new Thread(new InterruptibleLockRunnable(lock));
1050		assertTrue(lock.getQueuedThreads().isEmpty());
#	Line 1127 | Line 1072 | public class ReentrantReadWriteLockTest
1072		* hasWaiters throws NPE if null
1073		*/
1074		public void testHasWaitersNPE() {
1075	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
1075	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
1076		try {
1077		lock.hasWaiters(null);
1078		shouldThrow();
#	Line 1138 | Line 1083 | public class ReentrantReadWriteLockTest
1083		* getWaitQueueLength throws NPE if null
1084		*/
1085		public void testGetWaitQueueLengthNPE() {
1086	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
1086	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
1087		try {
1088		lock.getWaitQueueLength(null);
1089		shouldThrow();
#	Line 1150 | Line 1095 | public class ReentrantReadWriteLockTest
1095		* getWaitingThreads throws NPE if null
1096		*/
1097		public void testGetWaitingThreadsNPE() {
1098	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
1098	>	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
1099		try {
1100		lock.getWaitingThreads(null);
1101		shouldThrow();
#	Line 1161 | Line 1106 | public class ReentrantReadWriteLockTest
1106		* hasWaiters throws IAE if not owned
1107		*/
1108		public void testHasWaitersIAE() {
1109	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
1109	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
1110		final Condition c = lock.writeLock().newCondition();
1111	<	final ReentrantReadWriteLock lock2 = new ReentrantReadWriteLock();
1111	>	final ReentrantReadWriteLock lock2 = new ReentrantReadWriteLock();
1112		try {
1113		lock2.hasWaiters(c);
1114		shouldThrow();
#	Line 1174 | Line 1119 | public class ReentrantReadWriteLockTest
1119		* hasWaiters throws IMSE if not locked
1120		*/
1121		public void testHasWaitersIMSE() {
1122	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
1122	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
1123		final Condition c = lock.writeLock().newCondition();
1124		try {
1125		lock.hasWaiters(c);
#	Line 1187 | Line 1132 | public class ReentrantReadWriteLockTest
1132		* getWaitQueueLength throws IAE if not owned
1133		*/
1134		public void testGetWaitQueueLengthIAE() {
1135	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
1135	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
1136		final Condition c = lock.writeLock().newCondition();
1137	<	final ReentrantReadWriteLock lock2 = new ReentrantReadWriteLock();
1137	>	final ReentrantReadWriteLock lock2 = new ReentrantReadWriteLock();
1138		try {
1139		lock2.getWaitQueueLength(c);
1140		shouldThrow();
#	Line 1200 | Line 1145 | public class ReentrantReadWriteLockTest
1145		* getWaitQueueLength throws IMSE if not locked
1146		*/
1147		public void testGetWaitQueueLengthIMSE() {
1148	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
1148	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
1149		final Condition c = lock.writeLock().newCondition();
1150		try {
1151		lock.getWaitQueueLength(c);
#	Line 1213 | Line 1158 | public class ReentrantReadWriteLockTest
1158		* getWaitingThreads throws IAE if not owned
1159		*/
1160		public void testGetWaitingThreadsIAE() {
1161	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
1161	>	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
1162		final Condition c = lock.writeLock().newCondition();
1163	<	final PublicReentrantReadWriteLock lock2 = new PublicReentrantReadWriteLock();
1163	>	final PublicReentrantReadWriteLock lock2 = new PublicReentrantReadWriteLock();
1164		try {
1165		lock2.getWaitingThreads(c);
1166		shouldThrow();
#	Line 1226 | Line 1171 | public class ReentrantReadWriteLockTest
1171		* getWaitingThreads throws IMSE if not locked
1172		*/
1173		public void testGetWaitingThreadsIMSE() {
1174	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
1174	>	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
1175		final Condition c = lock.writeLock().newCondition();
1176		try {
1177		lock.getWaitingThreads(c);
#	Line 1239 | Line 1184 | public class ReentrantReadWriteLockTest
1184		* hasWaiters returns true when a thread is waiting, else false
1185		*/
1186		public void testHasWaiters() throws InterruptedException {
1187	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
1187	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
1188		final Condition c = lock.writeLock().newCondition();
1189	<	Thread t = new Thread(new CheckedRunnable() {
1189	>	Thread t = newStartedThread(new CheckedRunnable() {
1190		public void realRun() throws InterruptedException {
1191		lock.writeLock().lock();
1192	<	threadAssertFalse(lock.hasWaiters(c));
1193	<	threadAssertEquals(0, lock.getWaitQueueLength(c));
1192	>	assertFalse(lock.hasWaiters(c));
1193	>	assertEquals(0, lock.getWaitQueueLength(c));
1194		c.await();
1195		lock.writeLock().unlock();
1196		}});
1197
1253	–	t.start();
1198		Thread.sleep(SHORT_DELAY_MS);
1199		lock.writeLock().lock();
1200		assertTrue(lock.hasWaiters(c));
#	Line 1270 | Line 1214 | public class ReentrantReadWriteLockTest
1214		* getWaitQueueLength returns number of waiting threads
1215		*/
1216		public void testGetWaitQueueLength() throws InterruptedException {
1217	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
1217	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
1218		final Condition c = lock.writeLock().newCondition();
1219	<	Thread t = new Thread(new CheckedRunnable() {
1219	>	Thread t = newStartedThread(new CheckedRunnable() {
1220		public void realRun() throws InterruptedException {
1221		lock.writeLock().lock();
1222	<	threadAssertFalse(lock.hasWaiters(c));
1223	<	threadAssertEquals(0, lock.getWaitQueueLength(c));
1222	>	assertFalse(lock.hasWaiters(c));
1223	>	assertEquals(0, lock.getWaitQueueLength(c));
1224		c.await();
1225		lock.writeLock().unlock();
1226		}});
1227
1284	–	t.start();
1228		Thread.sleep(SHORT_DELAY_MS);
1229		lock.writeLock().lock();
1230		assertTrue(lock.hasWaiters(c));
#	Line 1302 | Line 1245 | public class ReentrantReadWriteLockTest
1245		* getWaitingThreads returns only and all waiting threads
1246		*/
1247		public void testGetWaitingThreads() throws InterruptedException {
1248	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
1248	>	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
1249		final Condition c = lock.writeLock().newCondition();
1250	<	Thread t1 = new Thread(new CheckedRunnable() {
1250	>	Thread t1 = new Thread(new CheckedRunnable() {
1251		public void realRun() throws InterruptedException {
1252		lock.writeLock().lock();
1253	<	threadAssertTrue(lock.getWaitingThreads(c).isEmpty());
1253	>	assertTrue(lock.getWaitingThreads(c).isEmpty());
1254		c.await();
1255		lock.writeLock().unlock();
1256		}});
1257
1258	<	Thread t2 = new Thread(new CheckedRunnable() {
1258	>	Thread t2 = new Thread(new CheckedRunnable() {
1259		public void realRun() throws InterruptedException {
1260		lock.writeLock().lock();
1261	<	threadAssertFalse(lock.getWaitingThreads(c).isEmpty());
1261	>	assertFalse(lock.getWaitingThreads(c).isEmpty());
1262		c.await();
1263		lock.writeLock().unlock();
1264		}});

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