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

Comparing jsr166/src/test/tck/ReentrantReadWriteLockTest.java (file contents):
Revision 1.32 by jsr166, Tue Nov 17 14:18:28 2009 UTC vs.
Revision 1.51 by jsr166, Mon May 2 00:14:09 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();
192	<	Thread t = new Thread(new Runnable() {
193	<	public void run() {
194	<	try {
195	<	lock.writeLock().lockInterruptibly();
196	<	lock.writeLock().unlock();
197	<	lock.writeLock().lockInterruptibly();
198	<	lock.writeLock().unlock();
199	<	} catch (InterruptedException success) {}
200	<	}
201	<	});
202	<
201	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
202		lock.writeLock().lock();
203	<	t.start();
203	>	Thread t = newStartedThread(new CheckedInterruptedRunnable() {
204	>	public void realRun() throws InterruptedException {
205	>	lock.writeLock().lockInterruptibly();
206	>	}});
207	>
208		Thread.sleep(SHORT_DELAY_MS);
209		t.interrupt();
207	–	Thread.sleep(SHORT_DELAY_MS);
208	–	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 Runnable() {
221	<	public void run() {
222	<	try {
223	<	lock.writeLock().tryLock(1000,TimeUnit.MILLISECONDS);
222	<	} catch (InterruptedException success) {}
223	<	}
224	<	});
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(SMALL_DELAY_MS, MILLISECONDS);
223	>	}});
224
225	<	t.start();
225	>	Thread.sleep(SHORT_DELAY_MS);
226		t.interrupt();
228	–	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 Runnable() {
238	<	public void run() {
239	<	try {
240	<	lock.readLock().lockInterruptibly();
242	<	} catch (InterruptedException success) {}
243	<	}
244	<	});
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
246	–	t.start();
242		Thread.sleep(SHORT_DELAY_MS);
243		t.interrupt();
249	–	Thread.sleep(SHORT_DELAY_MS);
250	–	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 Runnable() {
255	<	public void run() {
256	<	try {
257	<	lock.readLock().tryLock(1000,TimeUnit.MILLISECONDS);
264	<	threadShouldThrow();
265	<	} catch (InterruptedException success) {}
266	<	}
267	<	});
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(LONG_DELAY_MS, MILLISECONDS);
257	>	}});
258
259	<	t.start();
259	>	Thread.sleep(SHORT_DELAY_MS);
260		t.interrupt();
261		t.join();
262	+	releaseLock(lock.writeLock());
263		}
264
265
#	Line 276 | Line 267 | public class ReentrantReadWriteLockTest
267		* write-tryLock fails if locked
268		*/
269		public void testWriteTryLockWhenLocked() throws InterruptedException {
270	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
271	<	lock.writeLock().lock();
272	<	Thread t = new Thread(new Runnable() {
273	<	public void run() {
274	<	threadAssertFalse(lock.writeLock().tryLock());
275	<	}
285	<	});
270	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
271	>	lock.writeLock().lock();
272	>	Thread t = newStartedThread(new CheckedRunnable() {
273	>	public void realRun() {
274	>	assertFalse(lock.writeLock().tryLock());
275	>	}});
276
287	–	t.start();
277		t.join();
278		lock.writeLock().unlock();
279		}
#	Line 293 | Line 282 | public class ReentrantReadWriteLockTest
282		* read-tryLock fails if locked
283		*/
284		public void testReadTryLockWhenLocked() throws InterruptedException {
285	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
286	<	lock.writeLock().lock();
287	<	Thread t = new Thread(new Runnable() {
288	<	public void run() {
289	<	threadAssertFalse(lock.readLock().tryLock());
290	<	}
302	<	});
285	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
286	>	lock.writeLock().lock();
287	>	Thread t = newStartedThread(new CheckedRunnable() {
288	>	public void realRun() {
289	>	assertFalse(lock.readLock().tryLock());
290	>	}});
291
304	–	t.start();
292		t.join();
293		lock.writeLock().unlock();
294		}
#	Line 310 | Line 297 | public class ReentrantReadWriteLockTest
297		* Multiple threads can hold a read lock when not write-locked
298		*/
299		public void testMultipleReadLocks() throws InterruptedException {
300	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
301	<	lock.readLock().lock();
302	<	Thread t = new Thread(new Runnable() {
303	<	public void run() {
304	<	threadAssertTrue(lock.readLock().tryLock());
305	<	lock.readLock().unlock();
306	<	}
320	<	});
300	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
301	>	lock.readLock().lock();
302	>	Thread t = newStartedThread(new CheckedRunnable() {
303	>	public void realRun() {
304	>	assertTrue(lock.readLock().tryLock());
305	>	lock.readLock().unlock();
306	>	}});
307
322	–	t.start();
308		t.join();
309		lock.readLock().unlock();
310		}
#	Line 328 | Line 313 | public class ReentrantReadWriteLockTest
313		* A writelock succeeds after reading threads unlock
314		*/
315		public void testWriteAfterMultipleReadLocks() throws InterruptedException {
316	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
317	<	lock.readLock().lock();
318	<	Thread t1 = new Thread(new Runnable() {
319	<	public void run() {
320	<	lock.readLock().lock();
321	<	lock.readLock().unlock();
322	<	}
323	<	});
324	<	Thread t2 = new Thread(new Runnable() {
325	<	public void run() {
326	<	lock.writeLock().lock();
327	<	lock.writeLock().unlock();
343	<	}
344	<	});
316	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
317	>	lock.readLock().lock();
318	>	Thread t1 = newStartedThread(new CheckedRunnable() {
319	>	public void realRun() {
320	>	lock.readLock().lock();
321	>	lock.readLock().unlock();
322	>	}});
323	>	Thread t2 = newStartedThread(new CheckedRunnable() {
324	>	public void realRun() {
325	>	lock.writeLock().lock();
326	>	lock.writeLock().unlock();
327	>	}});
328
346	–	t1.start();
347	–	t2.start();
329		Thread.sleep(SHORT_DELAY_MS);
330		lock.readLock().unlock();
331		t1.join(MEDIUM_DELAY_MS);
#	Line 357 | Line 338 | public class ReentrantReadWriteLockTest
338		* Readlocks succeed after a writing thread unlocks
339		*/
340		public void testReadAfterWriteLock() throws InterruptedException {
341	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
342	<	lock.writeLock().lock();
343	<	Thread t1 = new Thread(new Runnable() {
344	<	public void run() {
345	<	lock.readLock().lock();
346	<	lock.readLock().unlock();
347	<	}
348	<	});
349	<	Thread t2 = new Thread(new Runnable() {
350	<	public void run() {
351	<	lock.readLock().lock();
352	<	lock.readLock().unlock();
372	<	}
373	<	});
341	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
342	>	lock.writeLock().lock();
343	>	Thread t1 = newStartedThread(new CheckedRunnable() {
344	>	public void realRun() {
345	>	lock.readLock().lock();
346	>	lock.readLock().unlock();
347	>	}});
348	>	Thread t2 = newStartedThread(new CheckedRunnable() {
349	>	public void realRun() {
350	>	lock.readLock().lock();
351	>	lock.readLock().unlock();
352	>	}});
353
375	–	t1.start();
376	–	t2.start();
354		Thread.sleep(SHORT_DELAY_MS);
355		lock.writeLock().unlock();
356		t1.join(MEDIUM_DELAY_MS);
#	Line 386 | Line 363 | public class ReentrantReadWriteLockTest
363		* Read trylock succeeds if write locked by current thread
364		*/
365		public void testReadHoldingWriteLock() {
366	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
367	<	lock.writeLock().lock();
366	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
367	>	lock.writeLock().lock();
368		assertTrue(lock.readLock().tryLock());
369		lock.readLock().unlock();
370		lock.writeLock().unlock();
#	Line 398 | Line 375 | public class ReentrantReadWriteLockTest
375		* other threads are waiting for readlock
376		*/
377		public void testReadHoldingWriteLock2() throws InterruptedException {
378	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
379	<	lock.writeLock().lock();
380	<	Thread t1 = new Thread(new Runnable() {
381	<	public void run() {
382	<	lock.readLock().lock();
383	<	lock.readLock().unlock();
384	<	}
385	<	});
386	<	Thread t2 = new Thread(new Runnable() {
387	<	public void run() {
388	<	lock.readLock().lock();
389	<	lock.readLock().unlock();
413	<	}
414	<	});
378	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
379	>	lock.writeLock().lock();
380	>	Thread t1 = newStartedThread(new CheckedRunnable() {
381	>	public void realRun() {
382	>	lock.readLock().lock();
383	>	lock.readLock().unlock();
384	>	}});
385	>	Thread t2 = newStartedThread(new CheckedRunnable() {
386	>	public void realRun() {
387	>	lock.readLock().lock();
388	>	lock.readLock().unlock();
389	>	}});
390
416	–	t1.start();
417	–	t2.start();
391		lock.readLock().lock();
392		lock.readLock().unlock();
393		Thread.sleep(SHORT_DELAY_MS);
#	Line 428 | Line 401 | public class ReentrantReadWriteLockTest
401		}
402
403		/**
404	<	*  Read lock succeeds if write locked by current thread even if
404	>	* Read lock succeeds if write locked by current thread even if
405		* other threads are waiting for writelock
406		*/
407		public void testReadHoldingWriteLock3() throws InterruptedException {
408	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
409	<	lock.writeLock().lock();
410	<	Thread t1 = new Thread(new Runnable() {
411	<	public void run() {
412	<	lock.writeLock().lock();
413	<	lock.writeLock().unlock();
414	<	}
415	<	});
416	<	Thread t2 = new Thread(new Runnable() {
417	<	public void run() {
418	<	lock.writeLock().lock();
419	<	lock.writeLock().unlock();
447	<	}
448	<	});
408	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
409	>	lock.writeLock().lock();
410	>	Thread t1 = newStartedThread(new CheckedRunnable() {
411	>	public void realRun() {
412	>	lock.writeLock().lock();
413	>	lock.writeLock().unlock();
414	>	}});
415	>	Thread t2 = newStartedThread(new CheckedRunnable() {
416	>	public void realRun() {
417	>	lock.writeLock().lock();
418	>	lock.writeLock().unlock();
419	>	}});
420
450	–	t1.start();
451	–	t2.start();
421		lock.readLock().lock();
422		lock.readLock().unlock();
423		Thread.sleep(SHORT_DELAY_MS);
#	Line 463 | Line 432 | public class ReentrantReadWriteLockTest
432
433
434		/**
435	<	*  Write lock succeeds if write locked by current thread even if
435	>	* Write lock succeeds if write locked by current thread even if
436		* other threads are waiting for writelock
437		*/
438		public void testWriteHoldingWriteLock4() throws InterruptedException {
439	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
440	<	lock.writeLock().lock();
441	<	Thread t1 = new Thread(new Runnable() {
442	<	public void run() {
443	<	lock.writeLock().lock();
444	<	lock.writeLock().unlock();
445	<	}
446	<	});
447	<	Thread t2 = new Thread(new Runnable() {
448	<	public void run() {
449	<	lock.writeLock().lock();
450	<	lock.writeLock().unlock();
482	<	}
483	<	});
439	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
440	>	lock.writeLock().lock();
441	>	Thread t1 = newStartedThread(new CheckedRunnable() {
442	>	public void realRun() {
443	>	lock.writeLock().lock();
444	>	lock.writeLock().unlock();
445	>	}});
446	>	Thread t2 = newStartedThread(new CheckedRunnable() {
447	>	public void realRun() {
448	>	lock.writeLock().lock();
449	>	lock.writeLock().unlock();
450	>	}});
451
485	–	t1.start();
486	–	t2.start();
452		lock.writeLock().lock();
453		lock.writeLock().unlock();
454		Thread.sleep(SHORT_DELAY_MS);
#	Line 501 | Line 466 | public class ReentrantReadWriteLockTest
466		* Fair Read trylock succeeds if write locked by current thread
467		*/
468		public void testReadHoldingWriteLockFair() {
469	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true);
470	<	lock.writeLock().lock();
469	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true);
470	>	lock.writeLock().lock();
471		assertTrue(lock.readLock().tryLock());
472		lock.readLock().unlock();
473		lock.writeLock().unlock();
#	Line 513 | Line 478 | public class ReentrantReadWriteLockTest
478		* other threads are waiting for readlock
479		*/
480		public void testReadHoldingWriteLockFair2() throws InterruptedException {
481	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true);
482	<	lock.writeLock().lock();
483	<	Thread t1 = new Thread(new Runnable() {
484	<	public void run() {
485	<	lock.readLock().lock();
486	<	lock.readLock().unlock();
487	<	}
488	<	});
489	<	Thread t2 = new Thread(new Runnable() {
490	<	public void run() {
491	<	lock.readLock().lock();
492	<	lock.readLock().unlock();
528	<	}
529	<	});
481	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true);
482	>	lock.writeLock().lock();
483	>	Thread t1 = newStartedThread(new CheckedRunnable() {
484	>	public void realRun() {
485	>	lock.readLock().lock();
486	>	lock.readLock().unlock();
487	>	}});
488	>	Thread t2 = newStartedThread(new CheckedRunnable() {
489	>	public void realRun() {
490	>	lock.readLock().lock();
491	>	lock.readLock().unlock();
492	>	}});
493
531	–	t1.start();
532	–	t2.start();
494		lock.readLock().lock();
495		lock.readLock().unlock();
496		Thread.sleep(SHORT_DELAY_MS);
#	Line 548 | Line 509 | public class ReentrantReadWriteLockTest
509		* other threads are waiting for writelock
510		*/
511		public void testReadHoldingWriteLockFair3() throws InterruptedException {
512	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true);
513	<	lock.writeLock().lock();
514	<	Thread t1 = new Thread(new Runnable() {
515	<	public void run() {
516	<	lock.writeLock().lock();
517	<	lock.writeLock().unlock();
518	<	}
519	<	});
520	<	Thread t2 = new Thread(new Runnable() {
521	<	public void run() {
522	<	lock.writeLock().lock();
523	<	lock.writeLock().unlock();
563	<	}
564	<	});
512	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true);
513	>	lock.writeLock().lock();
514	>	Thread t1 = newStartedThread(new CheckedRunnable() {
515	>	public void realRun() {
516	>	lock.writeLock().lock();
517	>	lock.writeLock().unlock();
518	>	}});
519	>	Thread t2 = newStartedThread(new CheckedRunnable() {
520	>	public void realRun() {
521	>	lock.writeLock().lock();
522	>	lock.writeLock().unlock();
523	>	}});
524
566	–	t1.start();
567	–	t2.start();
525		lock.readLock().lock();
526		lock.readLock().unlock();
527		Thread.sleep(SHORT_DELAY_MS);
#	Line 583 | Line 540 | public class ReentrantReadWriteLockTest
540		* other threads are waiting for writelock
541		*/
542		public void testWriteHoldingWriteLockFair4() throws InterruptedException {
543	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true);
544	<	lock.writeLock().lock();
545	<	Thread t1 = new Thread(new Runnable() {
546	<	public void run() {
547	<	lock.writeLock().lock();
548	<	lock.writeLock().unlock();
549	<	}
550	<	});
551	<	Thread t2 = new Thread(new Runnable() {
552	<	public void run() {
553	<	lock.writeLock().lock();
554	<	lock.writeLock().unlock();
598	<	}
599	<	});
543	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true);
544	>	lock.writeLock().lock();
545	>	Thread t1 = newStartedThread(new CheckedRunnable() {
546	>	public void realRun() {
547	>	lock.writeLock().lock();
548	>	lock.writeLock().unlock();
549	>	}});
550	>	Thread t2 = newStartedThread(new CheckedRunnable() {
551	>	public void realRun() {
552	>	lock.writeLock().lock();
553	>	lock.writeLock().unlock();
554	>	}});
555
601	–	t1.start();
602	–	t2.start();
556		Thread.sleep(SHORT_DELAY_MS);
557		assertTrue(lock.isWriteLockedByCurrentThread());
558	<	assertTrue(lock.getWriteHoldCount() == 1);
558	>	assertEquals(1, lock.getWriteHoldCount());
559		lock.writeLock().lock();
560	<	assertTrue(lock.getWriteHoldCount() == 2);
560	>	assertEquals(2, lock.getWriteHoldCount());
561		lock.writeLock().unlock();
562		lock.writeLock().lock();
563		lock.writeLock().unlock();
#	Line 620 | Line 573 | public class ReentrantReadWriteLockTest
573		* Read tryLock succeeds if readlocked but not writelocked
574		*/
575		public void testTryLockWhenReadLocked() throws InterruptedException {
576	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
577	<	lock.readLock().lock();
578	<	Thread t = new Thread(new Runnable() {
579	<	public void run() {
580	<	threadAssertTrue(lock.readLock().tryLock());
581	<	lock.readLock().unlock();
582	<	}
630	<	});
576	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
577	>	lock.readLock().lock();
578	>	Thread t = newStartedThread(new CheckedRunnable() {
579	>	public void realRun() {
580	>	assertTrue(lock.readLock().tryLock());
581	>	lock.readLock().unlock();
582	>	}});
583
632	–	t.start();
584		t.join();
585		lock.readLock().unlock();
586		}
587
637	–
638	–
588		/**
589		* write tryLock fails when readlocked
590		*/
591		public void testWriteTryLockWhenReadLocked() throws InterruptedException {
592	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
593	<	lock.readLock().lock();
594	<	Thread t = new Thread(new Runnable() {
595	<	public void run() {
596	<	threadAssertFalse(lock.writeLock().tryLock());
597	<	}
649	<	});
592	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
593	>	lock.readLock().lock();
594	>	Thread t = newStartedThread(new CheckedRunnable() {
595	>	public void realRun() {
596	>	assertFalse(lock.writeLock().tryLock());
597	>	}});
598
651	–	t.start();
599		t.join();
600		lock.readLock().unlock();
601		}
#	Line 658 | Line 605 | public class ReentrantReadWriteLockTest
605		* Fair Read tryLock succeeds if readlocked but not writelocked
606		*/
607		public void testTryLockWhenReadLockedFair() throws InterruptedException {
608	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true);
609	<	lock.readLock().lock();
610	<	Thread t = new Thread(new Runnable() {
611	<	public void run() {
612	<	threadAssertTrue(lock.readLock().tryLock());
613	<	lock.readLock().unlock();
614	<	}
668	<	});
608	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true);
609	>	lock.readLock().lock();
610	>	Thread t = newStartedThread(new CheckedRunnable() {
611	>	public void realRun() {
612	>	assertTrue(lock.readLock().tryLock());
613	>	lock.readLock().unlock();
614	>	}});
615
670	–	t.start();
616		t.join();
617		lock.readLock().unlock();
618		}
#	Line 678 | Line 623 | public class ReentrantReadWriteLockTest
623		* Fair write tryLock fails when readlocked
624		*/
625		public void testWriteTryLockWhenReadLockedFair() throws InterruptedException {
626	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true);
627	<	lock.readLock().lock();
628	<	Thread t = new Thread(new Runnable() {
629	<	public void run() {
630	<	threadAssertFalse(lock.writeLock().tryLock());
631	<	}
687	<	});
626	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true);
627	>	lock.readLock().lock();
628	>	Thread t = newStartedThread(new CheckedRunnable() {
629	>	public void realRun() {
630	>	assertFalse(lock.writeLock().tryLock());
631	>	}});
632
689	–	t.start();
633		t.join();
634		lock.readLock().unlock();
635		}
#	Line 697 | Line 640 | public class ReentrantReadWriteLockTest
640		* write timed tryLock times out if locked
641		*/
642		public void testWriteTryLock_Timeout() throws InterruptedException {
643	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
644	<	lock.writeLock().lock();
645	<	Thread t = new Thread(new Runnable() {
646	<	public void run() {
647	<	try {
648	<	threadAssertFalse(lock.writeLock().tryLock(1, TimeUnit.MILLISECONDS));
706	<	} catch (Exception ex) {
707	<	threadUnexpectedException();
708	<	}
709	<	}
710	<	});
643	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
644	>	lock.writeLock().lock();
645	>	Thread t = newStartedThread(new CheckedRunnable() {
646	>	public void realRun() throws InterruptedException {
647	>	assertFalse(lock.writeLock().tryLock(1, MILLISECONDS));
648	>	}});
649
712	–	t.start();
650		t.join();
651	+	assertTrue(lock.writeLock().isHeldByCurrentThread());
652		lock.writeLock().unlock();
653		}
654
#	Line 718 | Line 656 | public class ReentrantReadWriteLockTest
656		* read timed tryLock times out if write-locked
657		*/
658		public void testReadTryLock_Timeout() throws InterruptedException {
659	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
660	<	lock.writeLock().lock();
661	<	Thread t = new Thread(new Runnable() {
662	<	public void run() {
663	<	try {
664	<	threadAssertFalse(lock.readLock().tryLock(1, TimeUnit.MILLISECONDS));
727	<	} catch (Exception ex) {
728	<	threadUnexpectedException();
729	<	}
730	<	}
731	<	});
659	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
660	>	lock.writeLock().lock();
661	>	Thread t = newStartedThread(new CheckedRunnable() {
662	>	public void realRun() throws InterruptedException {
663	>	assertFalse(lock.readLock().tryLock(1, MILLISECONDS));
664	>	}});
665
733	–	t.start();
666		t.join();
667	+	assertTrue(lock.writeLock().isHeldByCurrentThread());
668		lock.writeLock().unlock();
669		}
670
#	Line 740 | Line 673 | public class ReentrantReadWriteLockTest
673		* write lockInterruptibly succeeds if lock free else is interruptible
674		*/
675		public void testWriteLockInterruptibly() throws InterruptedException {
676	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
676	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
677		lock.writeLock().lockInterruptibly();
678	<	Thread t = new Thread(new Runnable() {
679	<	public void run() {
680	<	try {
681	<	lock.writeLock().lockInterruptibly();
749	<	threadShouldThrow();
750	<	}
751	<	catch (InterruptedException success) {
752	<	}
753	<	}
754	<	});
678	>	Thread t = newStartedThread(new CheckedInterruptedRunnable() {
679	>	public void realRun() throws InterruptedException {
680	>	lock.writeLock().lockInterruptibly();
681	>	}});
682
756	–	t.start();
683		Thread.sleep(SHORT_DELAY_MS);
684		t.interrupt();
759	–	Thread.sleep(SHORT_DELAY_MS);
685		t.join();
686	<	lock.writeLock().unlock();
686	>	releaseLock(lock.writeLock());
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 Runnable() {
696	<	public void run() {
697	<	try {
698	<	lock.readLock().lockInterruptibly();
774	<	threadShouldThrow();
775	<	}
776	<	catch (InterruptedException success) {
777	<	}
778	<	}
779	<	});
695	>	Thread t = newStartedThread(new CheckedInterruptedRunnable() {
696	>	public void realRun() throws InterruptedException {
697	>	lock.readLock().lockInterruptibly();
698	>	}});
699
781	–	t.start();
700		Thread.sleep(SHORT_DELAY_MS);
701		t.interrupt();
702		t.join();
703	<	lock.writeLock().unlock();
703	>	releaseLock(lock.writeLock());
704		}
705
706		/**
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 801 | 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 813 | 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 824 | 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() {
748	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
747	>	public void testAwait_Timeout() throws InterruptedException {
748	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
749		final Condition c = lock.writeLock().newCondition();
750		lock.writeLock().lock();
751	+	assertFalse(c.await(SHORT_DELAY_MS, MILLISECONDS));
752		lock.writeLock().unlock();
753		}
754
755		/**
756		* awaitUntil without a signal times out
757		*/
758	<	public void testAwaitUntil_Timeout() {
759	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
758	>	public void testAwaitUntil_Timeout() throws InterruptedException {
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();
763	+	assertFalse(c.awaitUntil(new java.util.Date(d.getTime() + 10)));
764		lock.writeLock().unlock();
765		}
766
#	Line 848 | 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 Runnable() {
774	<	public void run() {
775	<	try {
776	<	lock.writeLock().lock();
777	<	c.await();
778	<	lock.writeLock().unlock();
859	<	}
860	<	catch (InterruptedException e) {
861	<	threadUnexpectedException();
862	<	}
863	<	}
864	<	});
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
866	–	t.start();
780		Thread.sleep(SHORT_DELAY_MS);
781		lock.writeLock().lock();
782		c.signal();
#	Line 931 | 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 Runnable() {
850	<	public void run() {
851	<	try {
852	<	lock.writeLock().lock();
853	<	c.await();
854	<	lock.writeLock().unlock();
942	<	threadShouldThrow();
943	<	}
944	<	catch (InterruptedException success) {
945	<	}
946	<	}
947	<	});
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
949	–	t.start();
856		Thread.sleep(SHORT_DELAY_MS);
857		t.interrupt();
858		t.join(SHORT_DELAY_MS);
#	Line 957 | 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 Runnable() {
869	<	public void run() {
870	<	try {
871	<	lock.writeLock().lock();
872	<	c.awaitNanos(SHORT_DELAY_MS * 2 * 1000000);
873	<	lock.writeLock().unlock();
968	<	threadShouldThrow();
969	<	}
970	<	catch (InterruptedException success) {
971	<	}
972	<	}
973	<	});
868	>	Thread t = newStartedThread(new CheckedInterruptedRunnable() {
869	>	public void realRun() throws InterruptedException {
870	>	lock.writeLock().lock();
871	>	c.awaitNanos(MILLISECONDS.toNanos(LONG_DELAY_MS));
872	>	lock.writeLock().unlock();
873	>	}});
874
975	–	t.start();
875		Thread.sleep(SHORT_DELAY_MS);
876		t.interrupt();
877		t.join(SHORT_DELAY_MS);
#	Line 983 | 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 Runnable() {
888	<	public void run() {
889	<	try {
890	<	lock.writeLock().lock();
891	<	java.util.Date d = new java.util.Date();
892	<	c.awaitUntil(new java.util.Date(d.getTime() + 10000));
893	<	lock.writeLock().unlock();
995	<	threadShouldThrow();
996	<	}
997	<	catch (InterruptedException success) {
998	<	}
999	<	}
1000	<	});
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();
891	>	c.awaitUntil(new java.util.Date(d.getTime() + 10000));
892	>	lock.writeLock().unlock();
893	>	}});
894
1002	–	t.start();
895		Thread.sleep(SHORT_DELAY_MS);
896		t.interrupt();
897		t.join(SHORT_DELAY_MS);
#	Line 1010 | 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 Runnable() {
908	<	public void run() {
909	<	try {
910	<	lock.writeLock().lock();
911	<	c.await();
912	<	lock.writeLock().unlock();
913	<	}
914	<	catch (InterruptedException e) {
915	<	threadUnexpectedException();
916	<	}
917	<	}
918	<	});
919	<
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) {
1036	<	threadUnexpectedException();
1037	<	}
1038	<	}
1039	<	});
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 = newStartedThread(new CheckedRunnable() {
915	>	public void realRun() throws InterruptedException {
916	>	lock.writeLock().lock();
917	>	c.await();
918	>	lock.writeLock().unlock();
919	>	}});
920
1041	–	t1.start();
1042	–	t2.start();
921		Thread.sleep(SHORT_DELAY_MS);
922		lock.writeLock().lock();
923		c.signalAll();
#	Line 1074 | 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 1099 | 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();
984	<	} catch (NullPointerException success) {
1107	<	}
984	>	} catch (NullPointerException success) {}
985		}
986
987		/**
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 1142 | 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 1167 | 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 1195 | 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 1206 | 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 1218 | 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 1229 | 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 1242 | 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 1255 | 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 1268 | 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 1281 | 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 1294 | 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 1307 | 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 Runnable() {
1190	<	public void run() {
1191	<	try {
1192	<	lock.writeLock().lock();
1193	<	threadAssertFalse(lock.hasWaiters(c));
1194	<	threadAssertEquals(0, lock.getWaitQueueLength(c));
1195	<	c.await();
1196	<	lock.writeLock().unlock();
1320	<	}
1321	<	catch (InterruptedException e) {
1322	<	threadUnexpectedException();
1323	<	}
1324	<	}
1325	<	});
1189	>	Thread t = newStartedThread(new CheckedRunnable() {
1190	>	public void realRun() throws InterruptedException {
1191	>	lock.writeLock().lock();
1192	>	assertFalse(lock.hasWaiters(c));
1193	>	assertEquals(0, lock.getWaitQueueLength(c));
1194	>	c.await();
1195	>	lock.writeLock().unlock();
1196	>	}});
1197
1327	–	t.start();
1198		Thread.sleep(SHORT_DELAY_MS);
1199		lock.writeLock().lock();
1200		assertTrue(lock.hasWaiters(c));
#	Line 1344 | 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 Runnable() {
1220	<	public void run() {
1221	<	try {
1222	<	lock.writeLock().lock();
1223	<	threadAssertFalse(lock.hasWaiters(c));
1224	<	threadAssertEquals(0, lock.getWaitQueueLength(c));
1225	<	c.await();
1226	<	lock.writeLock().unlock();
1357	<	}
1358	<	catch (InterruptedException e) {
1359	<	threadUnexpectedException();
1360	<	}
1361	<	}
1362	<	});
1219	>	Thread t = newStartedThread(new CheckedRunnable() {
1220	>	public void realRun() throws InterruptedException {
1221	>	lock.writeLock().lock();
1222	>	assertFalse(lock.hasWaiters(c));
1223	>	assertEquals(0, lock.getWaitQueueLength(c));
1224	>	c.await();
1225	>	lock.writeLock().unlock();
1226	>	}});
1227
1364	–	t.start();
1228		Thread.sleep(SHORT_DELAY_MS);
1229		lock.writeLock().lock();
1230		assertTrue(lock.hasWaiters(c));
#	Line 1382 | 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 Runnable() {
1251	<	public void run() {
1252	<	try {
1253	<	lock.writeLock().lock();
1254	<	threadAssertTrue(lock.getWaitingThreads(c).isEmpty());
1255	<	c.await();
1256	<	lock.writeLock().unlock();
1257	<	}
1258	<	catch (InterruptedException e) {
1259	<	threadUnexpectedException();
1260	<	}
1261	<	}
1262	<	});
1263	<
1264	<	Thread t2 = new Thread(new Runnable() {
1402	<	public void run() {
1403	<	try {
1404	<	lock.writeLock().lock();
1405	<	threadAssertFalse(lock.getWaitingThreads(c).isEmpty());
1406	<	c.await();
1407	<	lock.writeLock().unlock();
1408	<	}
1409	<	catch (InterruptedException e) {
1410	<	threadUnexpectedException();
1411	<	}
1412	<	}
1413	<	});
1250	>	Thread t1 = new Thread(new CheckedRunnable() {
1251	>	public void realRun() throws InterruptedException {
1252	>	lock.writeLock().lock();
1253	>	assertTrue(lock.getWaitingThreads(c).isEmpty());
1254	>	c.await();
1255	>	lock.writeLock().unlock();
1256	>	}});
1257	>
1258	>	Thread t2 = new Thread(new CheckedRunnable() {
1259	>	public void realRun() throws InterruptedException {
1260	>	lock.writeLock().lock();
1261	>	assertFalse(lock.getWaitingThreads(c).isEmpty());
1262	>	c.await();
1263	>	lock.writeLock().unlock();
1264	>	}});
1265
1266		lock.writeLock().lock();
1267		assertTrue(lock.getWaitingThreads(c).isEmpty());

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