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

Comparing jsr166/src/test/tck/ReentrantReadWriteLockTest.java (file contents):
Revision 1.59 by jsr166, Sat May 7 19:03:26 2011 UTC vs.
Revision 1.64 by jsr166, Tue May 24 23:40:14 2011 UTC

#	Line 67 | Line 67 | public class ReentrantReadWriteLockTest
67		*/
68		void releaseWriteLock(PublicReentrantReadWriteLock lock) {
69		ReentrantReadWriteLock.WriteLock writeLock = lock.writeLock();
70	<	assertWriteLockedBy(lock, Thread.currentThread());
70	>	assertWriteLockedByMoi(lock);
71		assertEquals(1, lock.getWriteHoldCount());
72		writeLock.unlock();
73		assertNotWriteLocked(lock);
#	Line 80 | Line 80 | public class ReentrantReadWriteLockTest
80		long startTime = System.nanoTime();
81		while (!lock.hasQueuedThread(t)) {
82		if (millisElapsedSince(startTime) > LONG_DELAY_MS)
83	<	throw new AssertionError("timed out");
83	>	throw new AssertionFailedError("timed out");
84		Thread.yield();
85		}
86		assertTrue(t.isAlive());
#	Line 94 | Line 94 | public class ReentrantReadWriteLockTest
94		assertFalse(lock.isWriteLocked());
95		assertFalse(lock.isWriteLockedByCurrentThread());
96		assertFalse(lock.writeLock().isHeldByCurrentThread());
97	–	assertNull(lock.getOwner());
97		assertEquals(0, lock.getWriteHoldCount());
98	+	assertEquals(0, lock.writeLock().getHoldCount());
99	+	assertNull(lock.getOwner());
100		}
101
102		/**
#	Line 110 | Line 111 | public class ReentrantReadWriteLockTest
111		lock.writeLock().isHeldByCurrentThread());
112		assertEquals(t == Thread.currentThread(),
113		lock.getWriteHoldCount() > 0);
114	+	assertEquals(t == Thread.currentThread(),
115	+	lock.writeLock().getHoldCount() > 0);
116		assertEquals(0, lock.getReadLockCount());
117		}
118
119		/**
120	+	* Checks that lock is write-locked by the current thread.
121	+	*/
122	+	void assertWriteLockedByMoi(PublicReentrantReadWriteLock lock) {
123	+	assertWriteLockedBy(lock, Thread.currentThread());
124	+	}
125	+
126	+	/**
127		* Checks that condition c has no waiters.
128		*/
129		void assertHasNoWaiters(PublicReentrantReadWriteLock lock, Condition c) {
#	Line 135 | Line 145 | public class ReentrantReadWriteLockTest
145		lock.writeLock().unlock();
146		}
147
148	+	enum AwaitMethod { await, awaitTimed, awaitNanos, awaitUntil };
149	+
150	+	/**
151	+	* Awaits condition using the specified AwaitMethod.
152	+	*/
153	+	void await(Condition c, AwaitMethod awaitMethod)
154	+	throws InterruptedException {
155	+	switch (awaitMethod) {
156	+	case await:
157	+	c.await();
158	+	break;
159	+	case awaitTimed:
160	+	assertTrue(c.await(2 * LONG_DELAY_MS, MILLISECONDS));
161	+	break;
162	+	case awaitNanos:
163	+	long nanosRemaining = c.awaitNanos(MILLISECONDS.toNanos(2 * LONG_DELAY_MS));
164	+	assertTrue(nanosRemaining > 0);
165	+	break;
166	+	case awaitUntil:
167	+	java.util.Date d = new java.util.Date();
168	+	assertTrue(c.awaitUntil(new java.util.Date(d.getTime() + 2 * LONG_DELAY_MS)));
169	+	break;
170	+	}
171	+	}
172	+
173		/**
174		* Constructor sets given fairness, and is in unlocked state
175		*/
#	Line 160 | Line 195 | public class ReentrantReadWriteLockTest
195		/**
196		* write-locking and read-locking an unlocked lock succeed
197		*/
198	<	public void testLock() {
199	<	PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
200	<	assertNotWriteLocked(lock);
201	<	lock.writeLock().lock();
202	<	assertWriteLockedBy(lock, Thread.currentThread());
168	<	lock.writeLock().unlock();
169	<	assertNotWriteLocked(lock);
170	<	assertEquals(0, lock.getReadLockCount());
171	<	lock.readLock().lock();
172	<	assertNotWriteLocked(lock);
173	<	assertEquals(1, lock.getReadLockCount());
174	<	lock.readLock().unlock();
175	<	assertNotWriteLocked(lock);
176	<	assertEquals(0, lock.getReadLockCount());
177	<	}
178	<
179	<	/**
180	<	* locking an unlocked fair lock succeeds
181	<	*/
182	<	public void testFairLock() {
183	<	PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(true);
198	>	public void testLock()      { testLock(false); }
199	>	public void testLock_fair() { testLock(true); }
200	>	public void testLock(boolean fair) {
201	>	PublicReentrantReadWriteLock lock =
202	>	new PublicReentrantReadWriteLock(fair);
203		assertNotWriteLocked(lock);
204		lock.writeLock().lock();
205	<	assertWriteLockedBy(lock, Thread.currentThread());
205	>	assertWriteLockedByMoi(lock);
206		lock.writeLock().unlock();
207		assertNotWriteLocked(lock);
208		assertEquals(0, lock.getReadLockCount());
#	Line 198 | Line 217 | public class ReentrantReadWriteLockTest
217		/**
218		* getWriteHoldCount returns number of recursive holds
219		*/
220	<	public void testGetWriteHoldCount() {
221	<	ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
220	>	public void testGetWriteHoldCount()      { testGetWriteHoldCount(false); }
221	>	public void testGetWriteHoldCount_fair() { testGetWriteHoldCount(true); }
222	>	public void testGetWriteHoldCount(boolean fair) {
223	>	ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair);
224		for (int i = 1; i <= SIZE; i++) {
225		lock.writeLock().lock();
226		assertEquals(i,lock.getWriteHoldCount());
#	Line 211 | Line 232 | public class ReentrantReadWriteLockTest
232		}
233
234		/**
235	<	* WriteLock.getHoldCount returns number of recursive holds
235	>	* writelock.getHoldCount returns number of recursive holds
236		*/
237	<	public void testGetHoldCount() {
238	<	ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
237	>	public void testGetHoldCount()      { testGetHoldCount(false); }
238	>	public void testGetHoldCount_fair() { testGetHoldCount(true); }
239	>	public void testGetHoldCount(boolean fair) {
240	>	ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair);
241		for (int i = 1; i <= SIZE; i++) {
242		lock.writeLock().lock();
243		assertEquals(i,lock.writeLock().getHoldCount());
#	Line 228 | Line 251 | public class ReentrantReadWriteLockTest
251		/**
252		* getReadHoldCount returns number of recursive holds
253		*/
254	<	public void testGetReadHoldCount() {
255	<	ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
254	>	public void testGetReadHoldCount()      { testGetReadHoldCount(false); }
255	>	public void testGetReadHoldCount_fair() { testGetReadHoldCount(true); }
256	>	public void testGetReadHoldCount(boolean fair) {
257	>	ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair);
258		for (int i = 1; i <= SIZE; i++) {
259		lock.readLock().lock();
260		assertEquals(i,lock.getReadHoldCount());
#	Line 243 | Line 268 | public class ReentrantReadWriteLockTest
268		/**
269		* write-unlocking an unlocked lock throws IllegalMonitorStateException
270		*/
271	<	public void testWriteUnlock_IllegalMonitorStateException() {
272	<	ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
271	>	public void testWriteUnlock_IMSE()      { testWriteUnlock_IMSE(false); }
272	>	public void testWriteUnlock_IMSE_fair() { testWriteUnlock_IMSE(true); }
273	>	public void testWriteUnlock_IMSE(boolean fair) {
274	>	ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair);
275		try {
276		lock.writeLock().unlock();
277		shouldThrow();
#	Line 254 | Line 281 | public class ReentrantReadWriteLockTest
281		/**
282		* read-unlocking an unlocked lock throws IllegalMonitorStateException
283		*/
284	<	public void testReadUnlock_IllegalMonitorStateException() {
285	<	ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
284	>	public void testReadUnlock_IMSE()      { testReadUnlock_IMSE(false); }
285	>	public void testReadUnlock_IMSE_fair() { testReadUnlock_IMSE(true); }
286	>	public void testReadUnlock_IMSE(boolean fair) {
287	>	ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair);
288		try {
289		lock.readLock().unlock();
290		shouldThrow();
#	Line 265 | Line 294 | public class ReentrantReadWriteLockTest
294		/**
295		* write-lockInterruptibly is interruptible
296		*/
297	<	public void testWriteLockInterruptibly_Interrupted() throws Exception {
298	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
297	>	public void testWriteLockInterruptibly_Interruptible()      { testWriteLockInterruptibly_Interruptible(false); }
298	>	public void testWriteLockInterruptibly_Interruptible_fair() { testWriteLockInterruptibly_Interruptible(true); }
299	>	public void testWriteLockInterruptibly_Interruptible(boolean fair) {
300	>	final PublicReentrantReadWriteLock lock =
301	>	new PublicReentrantReadWriteLock(fair);
302		lock.writeLock().lock();
303		Thread t = newStartedThread(new CheckedInterruptedRunnable() {
304		public void realRun() throws InterruptedException {
#	Line 282 | Line 314 | public class ReentrantReadWriteLockTest
314		/**
315		* timed write-tryLock is interruptible
316		*/
317	<	public void testWriteTryLock_Interrupted() throws InterruptedException {
318	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
317	>	public void testWriteTryLock_Interruptible()      { testWriteTryLock_Interruptible(false); }
318	>	public void testWriteTryLock_Interruptible_fair() { testWriteTryLock_Interruptible(true); }
319	>	public void testWriteTryLock_Interruptible(boolean fair) {
320	>	final PublicReentrantReadWriteLock lock =
321	>	new PublicReentrantReadWriteLock(fair);
322		lock.writeLock().lock();
323		Thread t = newStartedThread(new CheckedInterruptedRunnable() {
324		public void realRun() throws InterruptedException {
#	Line 299 | Line 334 | public class ReentrantReadWriteLockTest
334		/**
335		* read-lockInterruptibly is interruptible
336		*/
337	<	public void testReadLockInterruptibly_Interrupted() throws InterruptedException {
338	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
337	>	public void testReadLockInterruptibly_Interruptible()      { testReadLockInterruptibly_Interruptible(false); }
338	>	public void testReadLockInterruptibly_Interruptible_fair() { testReadLockInterruptibly_Interruptible(true); }
339	>	public void testReadLockInterruptibly_Interruptible(boolean fair) {
340	>	final PublicReentrantReadWriteLock lock =
341	>	new PublicReentrantReadWriteLock(fair);
342		lock.writeLock().lock();
343		Thread t = newStartedThread(new CheckedInterruptedRunnable() {
344		public void realRun() throws InterruptedException {
#	Line 316 | Line 354 | public class ReentrantReadWriteLockTest
354		/**
355		* timed read-tryLock is interruptible
356		*/
357	<	public void testReadTryLock_Interrupted() throws InterruptedException {
358	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
357	>	public void testReadTryLock_Interruptible()      { testReadTryLock_Interruptible(false); }
358	>	public void testReadTryLock_Interruptible_fair() { testReadTryLock_Interruptible(true); }
359	>	public void testReadTryLock_Interruptible(boolean fair) {
360	>	final PublicReentrantReadWriteLock lock =
361	>	new PublicReentrantReadWriteLock(fair);
362		lock.writeLock().lock();
363		Thread t = newStartedThread(new CheckedInterruptedRunnable() {
364		public void realRun() throws InterruptedException {
#	Line 331 | Line 372 | public class ReentrantReadWriteLockTest
372		}
373
374		/**
375	+	* write-tryLock on an unlocked lock succeeds
376	+	*/
377	+	public void testWriteTryLock()      { testWriteTryLock(false); }
378	+	public void testWriteTryLock_fair() { testWriteTryLock(true); }
379	+	public void testWriteTryLock(boolean fair) {
380	+	final PublicReentrantReadWriteLock lock =
381	+	new PublicReentrantReadWriteLock(fair);
382	+	assertTrue(lock.writeLock().tryLock());
383	+	assertWriteLockedByMoi(lock);
384	+	assertTrue(lock.writeLock().tryLock());
385	+	assertWriteLockedByMoi(lock);
386	+	lock.writeLock().unlock();
387	+	releaseWriteLock(lock);
388	+	}
389	+
390	+	/**
391		* write-tryLock fails if locked
392		*/
393	<	public void testWriteTryLockWhenLocked() throws InterruptedException {
394	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
393	>	public void testWriteTryLockWhenLocked()      { testWriteTryLockWhenLocked(false); }
394	>	public void testWriteTryLockWhenLocked_fair() { testWriteTryLockWhenLocked(true); }
395	>	public void testWriteTryLockWhenLocked(boolean fair) {
396	>	final PublicReentrantReadWriteLock lock =
397	>	new PublicReentrantReadWriteLock(fair);
398		lock.writeLock().lock();
399		Thread t = newStartedThread(new CheckedRunnable() {
400		public void realRun() {
#	Line 348 | Line 408 | public class ReentrantReadWriteLockTest
408		/**
409		* read-tryLock fails if locked
410		*/
411	<	public void testReadTryLockWhenLocked() throws InterruptedException {
412	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
411	>	public void testReadTryLockWhenLocked()      { testReadTryLockWhenLocked(false); }
412	>	public void testReadTryLockWhenLocked_fair() { testReadTryLockWhenLocked(true); }
413	>	public void testReadTryLockWhenLocked(boolean fair) {
414	>	final PublicReentrantReadWriteLock lock =
415	>	new PublicReentrantReadWriteLock(fair);
416		lock.writeLock().lock();
417		Thread t = newStartedThread(new CheckedRunnable() {
418		public void realRun() {
#	Line 363 | Line 426 | public class ReentrantReadWriteLockTest
426		/**
427		* Multiple threads can hold a read lock when not write-locked
428		*/
429	<	public void testMultipleReadLocks() throws InterruptedException {
430	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
429	>	public void testMultipleReadLocks()      { testMultipleReadLocks(false); }
430	>	public void testMultipleReadLocks_fair() { testMultipleReadLocks(true); }
431	>	public void testMultipleReadLocks(boolean fair) {
432	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair);
433		lock.readLock().lock();
434		Thread t = newStartedThread(new CheckedRunnable() {
435	<	public void realRun() {
435	>	public void realRun() throws InterruptedException {
436		assertTrue(lock.readLock().tryLock());
437		lock.readLock().unlock();
438	+	assertTrue(lock.readLock().tryLock(LONG_DELAY_MS, MILLISECONDS));
439	+	lock.readLock().unlock();
440	+	lock.readLock().lock();
441	+	lock.readLock().unlock();
442		}});
443
444		awaitTermination(t);
#	Line 379 | Line 448 | public class ReentrantReadWriteLockTest
448		/**
449		* A writelock succeeds only after a reading thread unlocks
450		*/
451	<	public void testWriteAfterReadLock() throws InterruptedException {
452	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
451	>	public void testWriteAfterReadLock()      { testWriteAfterReadLock(false); }
452	>	public void testWriteAfterReadLock_fair() { testWriteAfterReadLock(true); }
453	>	public void testWriteAfterReadLock(boolean fair) {
454	>	final PublicReentrantReadWriteLock lock =
455	>	new PublicReentrantReadWriteLock(fair);
456		lock.readLock().lock();
385	–
457		Thread t = newStartedThread(new CheckedRunnable() {
458		public void realRun() {
459		assertEquals(1, lock.getReadLockCount());
#	Line 402 | Line 473 | public class ReentrantReadWriteLockTest
473		/**
474		* A writelock succeeds only after reading threads unlock
475		*/
476	<	public void testWriteAfterMultipleReadLocks() throws InterruptedException {
477	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
476	>	public void testWriteAfterMultipleReadLocks()      { testWriteAfterMultipleReadLocks(false); }
477	>	public void testWriteAfterMultipleReadLocks_fair() { testWriteAfterMultipleReadLocks(true); }
478	>	public void testWriteAfterMultipleReadLocks(boolean fair) {
479	>	final PublicReentrantReadWriteLock lock =
480	>	new PublicReentrantReadWriteLock(fair);
481		lock.readLock().lock();
482		lock.readLock().lock();
483		Thread t1 = newStartedThread(new CheckedRunnable() {
#	Line 433 | Line 507 | public class ReentrantReadWriteLockTest
507
508		/**
509		* A thread that tries to acquire a fair read lock (non-reentrantly)
510	<	* will block if there is a waiting writer thread.
510	>	* will block if there is a waiting writer thread
511		*/
512	<	public void testReaderWriterReaderFairFifo() throws InterruptedException {
513	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(true);
512	>	public void testReaderWriterReaderFairFifo() {
513	>	final PublicReentrantReadWriteLock lock =
514	>	new PublicReentrantReadWriteLock(true);
515		final AtomicBoolean t1GotLock = new AtomicBoolean(false);
516
517		lock.readLock().lock();
#	Line 471 | Line 546 | public class ReentrantReadWriteLockTest
546		/**
547		* Readlocks succeed only after a writing thread unlocks
548		*/
549	<	public void testReadAfterWriteLock() throws InterruptedException {
550	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
549	>	public void testReadAfterWriteLock()      { testReadAfterWriteLock(false); }
550	>	public void testReadAfterWriteLock_fair() { testReadAfterWriteLock(true); }
551	>	public void testReadAfterWriteLock(boolean fair) {
552	>	final PublicReentrantReadWriteLock lock =
553	>	new PublicReentrantReadWriteLock(fair);
554		lock.writeLock().lock();
555		Thread t1 = newStartedThread(new CheckedRunnable() {
556		public void realRun() {
#	Line 495 | Line 573 | public class ReentrantReadWriteLockTest
573		/**
574		* Read trylock succeeds if write locked by current thread
575		*/
576	<	public void testReadHoldingWriteLock() {
577	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
576	>	public void testReadHoldingWriteLock()      { testReadHoldingWriteLock(false); }
577	>	public void testReadHoldingWriteLock_fair() { testReadHoldingWriteLock(true); }
578	>	public void testReadHoldingWriteLock(boolean fair) {
579	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair);
580		lock.writeLock().lock();
581		assertTrue(lock.readLock().tryLock());
582		lock.readLock().unlock();
#	Line 504 | Line 584 | public class ReentrantReadWriteLockTest
584		}
585
586		/**
587	<	* Read lock succeeds if write locked by current thread even if
588	<	* other threads are waiting for readlock
587	>	* Read trylock succeeds (barging) even in the presence of waiting
588	>	* readers and/or writers
589		*/
590	<	public void testReadHoldingWriteLock2() throws InterruptedException {
591	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
592	<	lock.writeLock().lock();
590	>	public void testReadTryLockBarging()      { testReadTryLockBarging(false); }
591	>	public void testReadTryLockBarging_fair() { testReadTryLockBarging(true); }
592	>	public void testReadTryLockBarging(boolean fair) {
593	>	final PublicReentrantReadWriteLock lock =
594	>	new PublicReentrantReadWriteLock(fair);
595		lock.readLock().lock();
514	–	lock.readLock().unlock();
596
597		Thread t1 = newStartedThread(new CheckedRunnable() {
598		public void realRun() {
599	<	lock.readLock().lock();
600	<	lock.readLock().unlock();
520	<	}});
521	<	Thread t2 = newStartedThread(new CheckedRunnable() {
522	<	public void realRun() {
523	<	lock.readLock().lock();
524	<	lock.readLock().unlock();
599	>	lock.writeLock().lock();
600	>	lock.writeLock().unlock();
601		}});
602
603		waitForQueuedThread(lock, t1);
528	–	waitForQueuedThread(lock, t2);
529	–	assertWriteLockedBy(lock, Thread.currentThread());
530	–	lock.readLock().lock();
531	–	lock.readLock().unlock();
532	–	releaseWriteLock(lock);
533	–	awaitTermination(t1);
534	–	awaitTermination(t2);
535	–	}
536	–
537	–	/**
538	–	* Read lock succeeds if write locked by current thread even if
539	–	* other threads are waiting for writelock
540	–	*/
541	–	public void testReadHoldingWriteLock3() throws InterruptedException {
542	–	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
543	–	lock.writeLock().lock();
544	–	lock.readLock().lock();
545	–	lock.readLock().unlock();
604
547	–	Thread t1 = newStartedThread(new CheckedRunnable() {
548	–	public void realRun() {
549	–	lock.writeLock().lock();
550	–	lock.writeLock().unlock();
551	–	}});
605		Thread t2 = newStartedThread(new CheckedRunnable() {
606		public void realRun() {
607	<	lock.writeLock().lock();
608	<	lock.writeLock().unlock();
607	>	lock.readLock().lock();
608	>	lock.readLock().unlock();
609		}});
610
611	<	waitForQueuedThread(lock, t1);
612	<	waitForQueuedThread(lock, t2);
560	<	assertWriteLockedBy(lock, Thread.currentThread());
561	<	lock.readLock().lock();
562	<	lock.readLock().unlock();
563	<	releaseWriteLock(lock);
564	<	awaitTermination(t1);
565	<	awaitTermination(t2);
566	<	}
567	<
568	<	/**
569	<	* Write lock succeeds if write locked by current thread even if
570	<	* other threads are waiting for writelock
571	<	*/
572	<	public void testWriteHoldingWriteLock4() throws InterruptedException {
573	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
574	<	lock.writeLock().lock();
575	<	lock.writeLock().lock();
576	<	lock.writeLock().unlock();
611	>	if (fair)
612	>	waitForQueuedThread(lock, t2);
613
614	<	Thread t1 = newStartedThread(new CheckedRunnable() {
614	>	Thread t3 = newStartedThread(new CheckedRunnable() {
615		public void realRun() {
616	<	lock.writeLock().lock();
617	<	lock.writeLock().unlock();
582	<	}});
583	<	Thread t2 = newStartedThread(new CheckedRunnable() {
584	<	public void realRun() {
585	<	lock.writeLock().lock();
586	<	lock.writeLock().unlock();
616	>	lock.readLock().tryLock();
617	>	lock.readLock().unlock();
618		}});
619
620	<	waitForQueuedThread(lock, t1);
621	<	waitForQueuedThread(lock, t2);
622	<	assertWriteLockedBy(lock, Thread.currentThread());
623	<	assertEquals(1, lock.getWriteHoldCount());
624	<	lock.writeLock().lock();
594	<	assertWriteLockedBy(lock, Thread.currentThread());
595	<	assertEquals(2, lock.getWriteHoldCount());
596	<	lock.writeLock().unlock();
597	<	releaseWriteLock(lock);
620	>	assertTrue(lock.getReadLockCount() > 0);
621	>	awaitTermination(t3);
622	>	assertTrue(t1.isAlive());
623	>	if (fair) assertTrue(t2.isAlive());
624	>	lock.readLock().unlock();
625		awaitTermination(t1);
626		awaitTermination(t2);
627		}
628
629		/**
630	<	* Fair Read trylock succeeds if write locked by current thread
604	<	*/
605	<	public void testReadHoldingWriteLockFair() {
606	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true);
607	<	lock.writeLock().lock();
608	<	assertTrue(lock.readLock().tryLock());
609	<	lock.readLock().unlock();
610	<	lock.writeLock().unlock();
611	<	}
612	<
613	<	/**
614	<	* Fair Read lock succeeds if write locked by current thread even if
630	>	* Read lock succeeds if write locked by current thread even if
631		* other threads are waiting for readlock
632		*/
633	<	public void testReadHoldingWriteLockFair2() throws InterruptedException {
634	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(true);
633	>	public void testReadHoldingWriteLock2()      { testReadHoldingWriteLock2(false); }
634	>	public void testReadHoldingWriteLock2_fair() { testReadHoldingWriteLock2(true); }
635	>	public void testReadHoldingWriteLock2(boolean fair) {
636	>	final PublicReentrantReadWriteLock lock =
637	>	new PublicReentrantReadWriteLock(fair);
638		lock.writeLock().lock();
639		lock.readLock().lock();
640		lock.readLock().unlock();
#	Line 633 | Line 652 | public class ReentrantReadWriteLockTest
652
653		waitForQueuedThread(lock, t1);
654		waitForQueuedThread(lock, t2);
655	<	assertWriteLockedBy(lock, Thread.currentThread());
655	>	assertWriteLockedByMoi(lock);
656		lock.readLock().lock();
657		lock.readLock().unlock();
658		releaseWriteLock(lock);
#	Line 642 | Line 661 | public class ReentrantReadWriteLockTest
661		}
662
663		/**
664	<	* Fair Read lock succeeds if write locked by current thread even if
664	>	* Read lock succeeds if write locked by current thread even if
665		* other threads are waiting for writelock
666		*/
667	<	public void testReadHoldingWriteLockFair3() throws InterruptedException {
668	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(true);
667	>	public void testReadHoldingWriteLock3()      { testReadHoldingWriteLock3(false); }
668	>	public void testReadHoldingWriteLock3_fair() { testReadHoldingWriteLock3(true); }
669	>	public void testReadHoldingWriteLock3(boolean fair) {
670	>	final PublicReentrantReadWriteLock lock =
671	>	new PublicReentrantReadWriteLock(fair);
672		lock.writeLock().lock();
673		lock.readLock().lock();
674		lock.readLock().unlock();
#	Line 664 | Line 686 | public class ReentrantReadWriteLockTest
686
687		waitForQueuedThread(lock, t1);
688		waitForQueuedThread(lock, t2);
689	<	assertWriteLockedBy(lock, Thread.currentThread());
689	>	assertWriteLockedByMoi(lock);
690		lock.readLock().lock();
691		lock.readLock().unlock();
692	<	releaseWriteLock(lock);
692	>	assertWriteLockedByMoi(lock);
693	>	lock.writeLock().unlock();
694		awaitTermination(t1);
695		awaitTermination(t2);
696		}
697
698		/**
699	<	* Fair Write lock succeeds if write locked by current thread even if
699	>	* Write lock succeeds if write locked by current thread even if
700		* other threads are waiting for writelock
701		*/
702	<	public void testWriteHoldingWriteLockFair4() throws InterruptedException {
703	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(true);
702	>	public void testWriteHoldingWriteLock4()      { testWriteHoldingWriteLock4(false); }
703	>	public void testWriteHoldingWriteLock4_fair() { testWriteHoldingWriteLock4(true); }
704	>	public void testWriteHoldingWriteLock4(boolean fair) {
705	>	final PublicReentrantReadWriteLock lock =
706	>	new PublicReentrantReadWriteLock(fair);
707	>	lock.writeLock().lock();
708		lock.writeLock().lock();
709	+	lock.writeLock().unlock();
710	+
711		Thread t1 = newStartedThread(new CheckedRunnable() {
712		public void realRun() {
713		lock.writeLock().lock();
#	Line 692 | Line 721 | public class ReentrantReadWriteLockTest
721
722		waitForQueuedThread(lock, t1);
723		waitForQueuedThread(lock, t2);
724	<	assertWriteLockedBy(lock, Thread.currentThread());
724	>	assertWriteLockedByMoi(lock);
725		assertEquals(1, lock.getWriteHoldCount());
726		lock.writeLock().lock();
727	+	assertWriteLockedByMoi(lock);
728		assertEquals(2, lock.getWriteHoldCount());
729		lock.writeLock().unlock();
730	<	lock.writeLock().lock();
730	>	assertWriteLockedByMoi(lock);
731	>	assertEquals(1, lock.getWriteHoldCount());
732		lock.writeLock().unlock();
702	–	releaseWriteLock(lock);
733		awaitTermination(t1);
734		awaitTermination(t2);
735		}
#	Line 707 | Line 737 | public class ReentrantReadWriteLockTest
737		/**
738		* Read tryLock succeeds if readlocked but not writelocked
739		*/
740	<	public void testTryLockWhenReadLocked() throws InterruptedException {
741	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
740	>	public void testTryLockWhenReadLocked()      { testTryLockWhenReadLocked(false); }
741	>	public void testTryLockWhenReadLocked_fair() { testTryLockWhenReadLocked(true); }
742	>	public void testTryLockWhenReadLocked(boolean fair) {
743	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair);
744		lock.readLock().lock();
745		Thread t = newStartedThread(new CheckedRunnable() {
746		public void realRun() {
#	Line 723 | Line 755 | public class ReentrantReadWriteLockTest
755		/**
756		* write tryLock fails when readlocked
757		*/
758	<	public void testWriteTryLockWhenReadLocked() throws InterruptedException {
759	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
760	<	lock.readLock().lock();
761	<	Thread t = newStartedThread(new CheckedRunnable() {
730	<	public void realRun() {
731	<	assertFalse(lock.writeLock().tryLock());
732	<	}});
733	<
734	<	awaitTermination(t);
735	<	lock.readLock().unlock();
736	<	}
737	<
738	<	/**
739	<	* Fair Read tryLock succeeds if readlocked but not writelocked
740	<	*/
741	<	public void testTryLockWhenReadLockedFair() throws InterruptedException {
742	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true);
743	<	lock.readLock().lock();
744	<	Thread t = newStartedThread(new CheckedRunnable() {
745	<	public void realRun() {
746	<	assertTrue(lock.readLock().tryLock());
747	<	lock.readLock().unlock();
748	<	}});
749	<
750	<	awaitTermination(t);
751	<	lock.readLock().unlock();
752	<	}
753	<
754	<	/**
755	<	* Fair write tryLock fails when readlocked
756	<	*/
757	<	public void testWriteTryLockWhenReadLockedFair() throws InterruptedException {
758	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true);
758	>	public void testWriteTryLockWhenReadLocked()      { testWriteTryLockWhenReadLocked(false); }
759	>	public void testWriteTryLockWhenReadLocked_fair() { testWriteTryLockWhenReadLocked(true); }
760	>	public void testWriteTryLockWhenReadLocked(boolean fair) {
761	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair);
762		lock.readLock().lock();
763		Thread t = newStartedThread(new CheckedRunnable() {
764		public void realRun() {
#	Line 769 | Line 772 | public class ReentrantReadWriteLockTest
772		/**
773		* write timed tryLock times out if locked
774		*/
775	<	public void testWriteTryLock_Timeout() throws InterruptedException {
776	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
775	>	public void testWriteTryLock_Timeout()      { testWriteTryLock_Timeout(false); }
776	>	public void testWriteTryLock_Timeout_fair() { testWriteTryLock_Timeout(true); }
777	>	public void testWriteTryLock_Timeout(boolean fair) {
778	>	final PublicReentrantReadWriteLock lock =
779	>	new PublicReentrantReadWriteLock(fair);
780		lock.writeLock().lock();
781		Thread t = newStartedThread(new CheckedRunnable() {
782		public void realRun() throws InterruptedException {
#	Line 781 | Line 787 | public class ReentrantReadWriteLockTest
787		}});
788
789		awaitTermination(t);
790	<	assertTrue(lock.writeLock().isHeldByCurrentThread());
785	<	lock.writeLock().unlock();
790	>	releaseWriteLock(lock);
791		}
792
793		/**
794		* read timed tryLock times out if write-locked
795		*/
796	<	public void testReadTryLock_Timeout() throws InterruptedException {
797	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
796	>	public void testReadTryLock_Timeout()      { testReadTryLock_Timeout(false); }
797	>	public void testReadTryLock_Timeout_fair() { testReadTryLock_Timeout(true); }
798	>	public void testReadTryLock_Timeout(boolean fair) {
799	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair);
800		lock.writeLock().lock();
801		Thread t = newStartedThread(new CheckedRunnable() {
802		public void realRun() throws InterruptedException {
#	Line 805 | Line 812 | public class ReentrantReadWriteLockTest
812		}
813
814		/**
815	<	* write lockInterruptibly succeeds if lock free else is interruptible
815	>	* write lockInterruptibly succeeds if unlocked, else is interruptible
816		*/
817	<	public void testWriteLockInterruptibly() throws InterruptedException {
818	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
819	<	lock.writeLock().lockInterruptibly();
817	>	public void testWriteLockInterruptibly()      { testWriteLockInterruptibly(false); }
818	>	public void testWriteLockInterruptibly_fair() { testWriteLockInterruptibly(true); }
819	>	public void testWriteLockInterruptibly(boolean fair) {
820	>	final PublicReentrantReadWriteLock lock =
821	>	new PublicReentrantReadWriteLock(fair);
822	>	try {
823	>	lock.writeLock().lockInterruptibly();
824	>	} catch (InterruptedException ie) {
825	>	threadUnexpectedException(ie);
826	>	}
827		Thread t = newStartedThread(new CheckedInterruptedRunnable() {
828		public void realRun() throws InterruptedException {
829		lock.writeLock().lockInterruptibly();
#	Line 817 | Line 831 | public class ReentrantReadWriteLockTest
831
832		waitForQueuedThread(lock, t);
833		t.interrupt();
834	+	assertTrue(lock.writeLock().isHeldByCurrentThread());
835		awaitTermination(t);
836		releaseWriteLock(lock);
837		}
#	Line 824 | Line 839 | public class ReentrantReadWriteLockTest
839		/**
840		* read lockInterruptibly succeeds if lock free else is interruptible
841		*/
842	<	public void testReadLockInterruptibly() throws InterruptedException {
843	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
844	<	lock.writeLock().lockInterruptibly();
842	>	public void testReadLockInterruptibly()      { testReadLockInterruptibly(false); }
843	>	public void testReadLockInterruptibly_fair() { testReadLockInterruptibly(true); }
844	>	public void testReadLockInterruptibly(boolean fair) {
845	>	final PublicReentrantReadWriteLock lock =
846	>	new PublicReentrantReadWriteLock(fair);
847	>	try {
848	>	lock.readLock().lockInterruptibly();
849	>	lock.readLock().unlock();
850	>	lock.writeLock().lockInterruptibly();
851	>	} catch (InterruptedException ie) {
852	>	threadUnexpectedException(ie);
853	>	}
854		Thread t = newStartedThread(new CheckedInterruptedRunnable() {
855		public void realRun() throws InterruptedException {
856		lock.readLock().lockInterruptibly();
#	Line 841 | Line 865 | public class ReentrantReadWriteLockTest
865		/**
866		* Calling await without holding lock throws IllegalMonitorStateException
867		*/
868	<	public void testAwait_IllegalMonitor() throws InterruptedException {
869	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
870	<	final Condition c = lock.writeLock().newCondition();
871	<	try {
872	<	c.await();
873	<	shouldThrow();
874	<	} catch (IllegalMonitorStateException success) {}
875	<	try {
876	<	c.await(LONG_DELAY_MS, MILLISECONDS);
877	<	shouldThrow();
878	<	} catch (IllegalMonitorStateException success) {}
879	<	try {
880	<	c.awaitNanos(100);
881	<	shouldThrow();
858	<	} catch (IllegalMonitorStateException success) {}
859	<	try {
860	<	c.awaitUninterruptibly();
861	<	shouldThrow();
862	<	} catch (IllegalMonitorStateException success) {}
868	>	public void testAwait_IMSE()      { testAwait_IMSE(false); }
869	>	public void testAwait_IMSE_fair() { testAwait_IMSE(true); }
870	>	public void testAwait_IMSE(boolean fair) {
871	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair);
872	>	final Condition c = lock.writeLock().newCondition();
873	>	for (AwaitMethod awaitMethod : AwaitMethod.values()) {
874	>	long startTime = System.nanoTime();
875	>	try {
876	>	await(c, awaitMethod);
877	>	shouldThrow();
878	>	} catch (IllegalMonitorStateException success) {
879	>	} catch (InterruptedException e) { threadUnexpectedException(e); }
880	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
881	>	}
882		}
883
884		/**
885		* Calling signal without holding lock throws IllegalMonitorStateException
886		*/
887	<	public void testSignal_IllegalMonitor() {
888	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
887	>	public void testSignal_IMSE()      { testSignal_IMSE(false); }
888	>	public void testSignal_IMSE_fair() { testSignal_IMSE(true); }
889	>	public void testSignal_IMSE(boolean fair) {
890	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair);
891		final Condition c = lock.writeLock().newCondition();
892		try {
893		c.signal();
#	Line 877 | Line 898 | public class ReentrantReadWriteLockTest
898		/**
899		* Calling signalAll without holding lock throws IllegalMonitorStateException
900		*/
901	<	public void testSignalAll_IllegalMonitor() {
902	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
901	>	public void testSignalAll_IMSE()      { testSignalAll_IMSE(false); }
902	>	public void testSignalAll_IMSE_fair() { testSignalAll_IMSE(true); }
903	>	public void testSignalAll_IMSE(boolean fair) {
904	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair);
905		final Condition c = lock.writeLock().newCondition();
906		try {
907		c.signalAll();
#	Line 889 | Line 912 | public class ReentrantReadWriteLockTest
912		/**
913		* awaitNanos without a signal times out
914		*/
915	<	public void testAwaitNanos_Timeout() throws InterruptedException {
916	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
917	<	final Condition c = lock.writeLock().newCondition();
918	<	lock.writeLock().lock();
919	<	long startTime = System.nanoTime();
920	<	long timeoutMillis = 10;
921	<	long timeoutNanos = MILLISECONDS.toNanos(timeoutMillis);
922	<	long nanosRemaining = c.awaitNanos(timeoutNanos);
923	<	assertTrue(nanosRemaining <= 0);
924	<	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
925	<	lock.writeLock().unlock();
915	>	public void testAwaitNanos_Timeout()      { testAwaitNanos_Timeout(false); }
916	>	public void testAwaitNanos_Timeout_fair() { testAwaitNanos_Timeout(true); }
917	>	public void testAwaitNanos_Timeout(boolean fair) {
918	>	try {
919	>	final ReentrantReadWriteLock lock =
920	>	new ReentrantReadWriteLock(fair);
921	>	final Condition c = lock.writeLock().newCondition();
922	>	lock.writeLock().lock();
923	>	long startTime = System.nanoTime();
924	>	long timeoutMillis = 10;
925	>	long timeoutNanos = MILLISECONDS.toNanos(timeoutMillis);
926	>	long nanosRemaining = c.awaitNanos(timeoutNanos);
927	>	assertTrue(nanosRemaining <= 0);
928	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
929	>	lock.writeLock().unlock();
930	>	} catch (InterruptedException e) {
931	>	threadUnexpectedException(e);
932	>	}
933		}
934
935		/**
936		* timed await without a signal times out
937		*/
938	<	public void testAwait_Timeout() throws InterruptedException {
939	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
940	<	final Condition c = lock.writeLock().newCondition();
941	<	lock.writeLock().lock();
942	<	long startTime = System.nanoTime();
943	<	long timeoutMillis = 10;
944	<	assertFalse(c.await(timeoutMillis, MILLISECONDS));
945	<	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
946	<	lock.writeLock().unlock();
938	>	public void testAwait_Timeout()      { testAwait_Timeout(false); }
939	>	public void testAwait_Timeout_fair() { testAwait_Timeout(true); }
940	>	public void testAwait_Timeout(boolean fair) {
941	>	try {
942	>	final ReentrantReadWriteLock lock =
943	>	new ReentrantReadWriteLock(fair);
944	>	final Condition c = lock.writeLock().newCondition();
945	>	lock.writeLock().lock();
946	>	long startTime = System.nanoTime();
947	>	long timeoutMillis = 10;
948	>	assertFalse(c.await(timeoutMillis, MILLISECONDS));
949	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
950	>	lock.writeLock().unlock();
951	>	} catch (InterruptedException e) {
952	>	threadUnexpectedException(e);
953	>	}
954		}
955
956		/**
957		* awaitUntil without a signal times out
958		*/
959	<	public void testAwaitUntil_Timeout() throws InterruptedException {
960	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
961	<	final Condition c = lock.writeLock().newCondition();
962	<	lock.writeLock().lock();
963	<	long startTime = System.nanoTime();
964	<	long timeoutMillis = 10;
965	<	java.util.Date d = new java.util.Date();
966	<	assertFalse(c.awaitUntil(new java.util.Date(d.getTime() + timeoutMillis)));
967	<	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
968	<	lock.writeLock().unlock();
959	>	public void testAwaitUntil_Timeout()      { testAwaitUntil_Timeout(false); }
960	>	public void testAwaitUntil_Timeout_fair() { testAwaitUntil_Timeout(true); }
961	>	public void testAwaitUntil_Timeout(boolean fair) {
962	>	try {
963	>	final ReentrantReadWriteLock lock =
964	>	new ReentrantReadWriteLock(fair);
965	>	final Condition c = lock.writeLock().newCondition();
966	>	lock.writeLock().lock();
967	>	long startTime = System.nanoTime();
968	>	long timeoutMillis = 10;
969	>	java.util.Date d = new java.util.Date();
970	>	assertFalse(c.awaitUntil(new java.util.Date(d.getTime() + timeoutMillis)));
971	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
972	>	lock.writeLock().unlock();
973	>	} catch (InterruptedException e) {
974	>	threadUnexpectedException(e);
975	>	}
976		}
977
978		/**
979		* await returns when signalled
980		*/
981	<	public void testAwait() throws InterruptedException {
982	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
981	>	public void testAwait()      { testAwait(false); }
982	>	public void testAwait_fair() { testAwait(true); }
983	>	public void testAwait(boolean fair) {
984	>	final PublicReentrantReadWriteLock lock =
985	>	new PublicReentrantReadWriteLock(fair);
986		final Condition c = lock.writeLock().newCondition();
987		final CountDownLatch locked = new CountDownLatch(1);
988		Thread t = newStartedThread(new CheckedRunnable() {
#	Line 946 | Line 993 | public class ReentrantReadWriteLockTest
993		lock.writeLock().unlock();
994		}});
995
996	<	locked.await();
996	>	await(locked);
997		lock.writeLock().lock();
998		assertHasWaiters(lock, c, t);
999		c.signal();
#	Line 959 | Line 1006 | public class ReentrantReadWriteLockTest
1006		/**
1007		* awaitUninterruptibly doesn't abort on interrupt
1008		*/
1009	<	public void testAwaitUninterruptibly() throws InterruptedException {
1010	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
1009	>	public void testAwaitUninterruptibly()      { testAwaitUninterruptibly(false); }
1010	>	public void testAwaitUninterruptibly_fair() { testAwaitUninterruptibly(true); }
1011	>	public void testAwaitUninterruptibly(boolean fair) {
1012	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair);
1013		final Condition c = lock.writeLock().newCondition();
1014		final CountDownLatch locked = new CountDownLatch(1);
1015		Thread t = newStartedThread(new CheckedRunnable() {
#	Line 972 | Line 1021 | public class ReentrantReadWriteLockTest
1021		lock.writeLock().unlock();
1022		}});
1023
1024	<	locked.await();
1024	>	await(locked);
1025		lock.writeLock().lock();
1026		lock.writeLock().unlock();
1027		t.interrupt();
1028		long timeoutMillis = 10;
1029	<	assertThreadJoinTimesOut(t, timeoutMillis);
1029	>	assertThreadStaysAlive(t, timeoutMillis);
1030		lock.writeLock().lock();
1031		c.signal();
1032		lock.writeLock().unlock();
#	Line 985 | Line 1034 | public class ReentrantReadWriteLockTest
1034		}
1035
1036		/**
1037	<	* await is interruptible
989	<	*/
990	<	public void testAwait_Interrupt() throws InterruptedException {
991	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
992	<	final Condition c = lock.writeLock().newCondition();
993	<	final CountDownLatch locked = new CountDownLatch(1);
994	<	Thread t = newStartedThread(new CheckedInterruptedRunnable() {
995	<	public void realRun() throws InterruptedException {
996	<	lock.writeLock().lock();
997	<	assertWriteLockedBy(lock, Thread.currentThread());
998	<	assertHasNoWaiters(lock, c);
999	<	locked.countDown();
1000	<	try {
1001	<	c.await();
1002	<	} finally {
1003	<	assertWriteLockedBy(lock, Thread.currentThread());
1004	<	assertHasNoWaiters(lock, c);
1005	<	lock.writeLock().unlock();
1006	<	assertFalse(Thread.interrupted());
1007	<	}
1008	<	}});
1009	<
1010	<	locked.await();
1011	<	assertHasWaiters(lock, c, t);
1012	<	t.interrupt();
1013	<	awaitTermination(t);
1014	<	assertNotWriteLocked(lock);
1015	<	}
1016	<
1017	<	/**
1018	<	* awaitNanos is interruptible
1019	<	*/
1020	<	public void testAwaitNanos_Interrupt() throws InterruptedException {
1021	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
1022	<	final Condition c = lock.writeLock().newCondition();
1023	<	final CountDownLatch locked = new CountDownLatch(1);
1024	<	Thread t = newStartedThread(new CheckedInterruptedRunnable() {
1025	<	public void realRun() throws InterruptedException {
1026	<	lock.writeLock().lock();
1027	<	assertWriteLockedBy(lock, Thread.currentThread());
1028	<	assertHasNoWaiters(lock, c);
1029	<	locked.countDown();
1030	<	try {
1031	<	c.awaitNanos(MILLISECONDS.toNanos(2 * LONG_DELAY_MS));
1032	<	} finally {
1033	<	assertWriteLockedBy(lock, Thread.currentThread());
1034	<	assertHasNoWaiters(lock, c);
1035	<	lock.writeLock().unlock();
1036	<	assertFalse(Thread.interrupted());
1037	<	}
1038	<	}});
1039	<
1040	<	locked.await();
1041	<	assertHasWaiters(lock, c, t);
1042	<	t.interrupt();
1043	<	awaitTermination(t);
1044	<	assertNotWriteLocked(lock);
1045	<	}
1046	<
1047	<	/**
1048	<	* awaitUntil is interruptible
1037	>	* await/awaitNanos/awaitUntil is interruptible
1038		*/
1039	<	public void testAwaitUntil_Interrupt() throws InterruptedException {
1040	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
1039	>	public void testInterruptible_await()           { testInterruptible(false, AwaitMethod.await); }
1040	>	public void testInterruptible_await_fair()      { testInterruptible(true,  AwaitMethod.await); }
1041	>	public void testInterruptible_awaitTimed()      { testInterruptible(false, AwaitMethod.awaitTimed); }
1042	>	public void testInterruptible_awaitTimed_fair() { testInterruptible(true,  AwaitMethod.awaitTimed); }
1043	>	public void testInterruptible_awaitNanos()      { testInterruptible(false, AwaitMethod.awaitNanos); }
1044	>	public void testInterruptible_awaitNanos_fair() { testInterruptible(true,  AwaitMethod.awaitNanos); }
1045	>	public void testInterruptible_awaitUntil()      { testInterruptible(false, AwaitMethod.awaitUntil); }
1046	>	public void testInterruptible_awaitUntil_fair() { testInterruptible(true,  AwaitMethod.awaitUntil); }
1047	>	public void testInterruptible(boolean fair, final AwaitMethod awaitMethod) {
1048	>	final PublicReentrantReadWriteLock lock =
1049	>	new PublicReentrantReadWriteLock(fair);
1050		final Condition c = lock.writeLock().newCondition();
1051		final CountDownLatch locked = new CountDownLatch(1);
1052		Thread t = newStartedThread(new CheckedInterruptedRunnable() {
1053		public void realRun() throws InterruptedException {
1054		lock.writeLock().lock();
1055	<	assertWriteLockedBy(lock, Thread.currentThread());
1055	>	assertWriteLockedByMoi(lock);
1056		assertHasNoWaiters(lock, c);
1057		locked.countDown();
1060	–	java.util.Date d = new java.util.Date();
1058		try {
1059	<	c.awaitUntil(new java.util.Date(d.getTime() + 2 * LONG_DELAY_MS));
1059	>	await(c, awaitMethod);
1060		} finally {
1061	<	assertWriteLockedBy(lock, Thread.currentThread());
1061	>	assertWriteLockedByMoi(lock);
1062		assertHasNoWaiters(lock, c);
1063		lock.writeLock().unlock();
1064		assertFalse(Thread.interrupted());
1065		}
1066		}});
1067
1068	<	locked.await();
1068	>	await(locked);
1069		assertHasWaiters(lock, c, t);
1070		t.interrupt();
1071		awaitTermination(t);
#	Line 1078 | Line 1075 | public class ReentrantReadWriteLockTest
1075		/**
1076		* signalAll wakes up all threads
1077		*/
1078	<	public void testSignalAll() throws InterruptedException {
1079	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
1078	>	public void testSignalAll_await()           { testSignalAll(false, AwaitMethod.await); }
1079	>	public void testSignalAll_await_fair()      { testSignalAll(true,  AwaitMethod.await); }
1080	>	public void testSignalAll_awaitTimed()      { testSignalAll(false, AwaitMethod.awaitTimed); }
1081	>	public void testSignalAll_awaitTimed_fair() { testSignalAll(true,  AwaitMethod.awaitTimed); }
1082	>	public void testSignalAll_awaitNanos()      { testSignalAll(false, AwaitMethod.awaitNanos); }
1083	>	public void testSignalAll_awaitNanos_fair() { testSignalAll(true,  AwaitMethod.awaitNanos); }
1084	>	public void testSignalAll_awaitUntil()      { testSignalAll(false, AwaitMethod.awaitUntil); }
1085	>	public void testSignalAll_awaitUntil_fair() { testSignalAll(true,  AwaitMethod.awaitUntil); }
1086	>	public void testSignalAll(boolean fair, final AwaitMethod awaitMethod) {
1087	>	final PublicReentrantReadWriteLock lock =
1088	>	new PublicReentrantReadWriteLock(fair);
1089		final Condition c = lock.writeLock().newCondition();
1090		final CountDownLatch locked = new CountDownLatch(2);
1091		final Lock writeLock = lock.writeLock();
1092	<	Thread t1 = newStartedThread(new CheckedRunnable() {
1092	>	class Awaiter extends CheckedRunnable {
1093		public void realRun() throws InterruptedException {
1094		writeLock.lock();
1095		locked.countDown();
1096	<	c.await();
1096	>	await(c, awaitMethod);
1097		writeLock.unlock();
1098	<	}});
1098	>	}
1099	>	}
1100
1101	<	Thread t2 = newStartedThread(new CheckedRunnable() {
1102	<	public void realRun() throws InterruptedException {
1096	<	writeLock.lock();
1097	<	locked.countDown();
1098	<	c.await();
1099	<	writeLock.unlock();
1100	<	}});
1101	>	Thread t1 = newStartedThread(new Awaiter());
1102	>	Thread t2 = newStartedThread(new Awaiter());
1103
1104	<	locked.await();
1104	>	await(locked);
1105		writeLock.lock();
1106		assertHasWaiters(lock, c, t1, t2);
1107		c.signalAll();
#	Line 1110 | Line 1112 | public class ReentrantReadWriteLockTest
1112		}
1113
1114		/**
1115	<	* signal wakes up waiting threads in FIFO order.
1115	>	* signal wakes up waiting threads in FIFO order
1116		*/
1117	<	public void testSignalWakesFifo() throws InterruptedException {
1118	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
1117	>	public void testSignalWakesFifo()      { testSignalWakesFifo(false); }
1118	>	public void testSignalWakesFifo_fair() { testSignalWakesFifo(true); }
1119	>	public void testSignalWakesFifo(boolean fair) {
1120	>	final PublicReentrantReadWriteLock lock =
1121	>	new PublicReentrantReadWriteLock(fair);
1122		final Condition c = lock.writeLock().newCondition();
1123		final CountDownLatch locked1 = new CountDownLatch(1);
1124		final CountDownLatch locked2 = new CountDownLatch(1);
#	Line 1126 | Line 1131 | public class ReentrantReadWriteLockTest
1131		writeLock.unlock();
1132		}});
1133
1134	<	locked1.await();
1134	>	await(locked1);
1135
1136		Thread t2 = newStartedThread(new CheckedRunnable() {
1137		public void realRun() throws InterruptedException {
#	Line 1136 | Line 1141 | public class ReentrantReadWriteLockTest
1141		writeLock.unlock();
1142		}});
1143
1144	<	locked2.await();
1144	>	await(locked2);
1145
1146		writeLock.lock();
1147		assertHasWaiters(lock, c, t1, t2);
#	Line 1157 | Line 1162 | public class ReentrantReadWriteLockTest
1162		/**
1163		* await after multiple reentrant locking preserves lock count
1164		*/
1165	<	public void testAwaitLockCount() throws InterruptedException {
1166	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
1165	>	public void testAwaitLockCount()      { testAwaitLockCount(false); }
1166	>	public void testAwaitLockCount_fair() { testAwaitLockCount(true); }
1167	>	public void testAwaitLockCount(boolean fair) {
1168	>	final PublicReentrantReadWriteLock lock =
1169	>	new PublicReentrantReadWriteLock(fair);
1170		final Condition c = lock.writeLock().newCondition();
1171		final CountDownLatch locked = new CountDownLatch(2);
1172		Thread t1 = newStartedThread(new CheckedRunnable() {
1173		public void realRun() throws InterruptedException {
1174		lock.writeLock().lock();
1175	<	assertWriteLockedBy(lock, Thread.currentThread());
1175	>	assertWriteLockedByMoi(lock);
1176		assertEquals(1, lock.writeLock().getHoldCount());
1177		locked.countDown();
1178		c.await();
1179	<	assertWriteLockedBy(lock, Thread.currentThread());
1179	>	assertWriteLockedByMoi(lock);
1180		assertEquals(1, lock.writeLock().getHoldCount());
1181		lock.writeLock().unlock();
1182		}});
#	Line 1177 | Line 1185 | public class ReentrantReadWriteLockTest
1185		public void realRun() throws InterruptedException {
1186		lock.writeLock().lock();
1187		lock.writeLock().lock();
1188	<	assertWriteLockedBy(lock, Thread.currentThread());
1188	>	assertWriteLockedByMoi(lock);
1189		assertEquals(2, lock.writeLock().getHoldCount());
1190		locked.countDown();
1191		c.await();
1192	<	assertWriteLockedBy(lock, Thread.currentThread());
1192	>	assertWriteLockedByMoi(lock);
1193		assertEquals(2, lock.writeLock().getHoldCount());
1194		lock.writeLock().unlock();
1195		lock.writeLock().unlock();
1196		}});
1197
1198	<	locked.await();
1198	>	await(locked);
1199		lock.writeLock().lock();
1200		assertHasWaiters(lock, c, t1, t2);
1201		c.signalAll();
#	Line 1200 | Line 1208 | public class ReentrantReadWriteLockTest
1208		/**
1209		* A serialized lock deserializes as unlocked
1210		*/
1211	<	public void testSerialization() throws Exception {
1212	<	ReentrantReadWriteLock l = new ReentrantReadWriteLock();
1213	<	l.readLock().lock();
1214	<	l.readLock().unlock();
1215	<
1216	<	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
1217	<	ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
1218	<	out.writeObject(l);
1219	<	out.close();
1220	<
1221	<	ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
1222	<	ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
1223	<	ReentrantReadWriteLock r = (ReentrantReadWriteLock) in.readObject();
1224	<	r.readLock().lock();
1225	<	r.readLock().unlock();
1211	>	public void testSerialization()      { testSerialization(false); }
1212	>	public void testSerialization_fair() { testSerialization(true); }
1213	>	public void testSerialization(boolean fair) {
1214	>	ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair);
1215	>	lock.writeLock().lock();
1216	>	lock.readLock().lock();
1217	>
1218	>	ReentrantReadWriteLock clone = serialClone(lock);
1219	>	assertEquals(lock.isFair(), clone.isFair());
1220	>	assertTrue(lock.isWriteLocked());
1221	>	assertFalse(clone.isWriteLocked());
1222	>	assertEquals(1, lock.getReadLockCount());
1223	>	assertEquals(0, clone.getReadLockCount());
1224	>	clone.writeLock().lock();
1225	>	clone.readLock().lock();
1226	>	assertTrue(clone.isWriteLocked());
1227	>	assertEquals(1, clone.getReadLockCount());
1228	>	clone.readLock().unlock();
1229	>	clone.writeLock().unlock();
1230	>	assertFalse(clone.isWriteLocked());
1231	>	assertEquals(1, lock.getReadLockCount());
1232	>	assertEquals(0, clone.getReadLockCount());
1233		}
1234
1235		/**
1236		* hasQueuedThreads reports whether there are waiting threads
1237		*/
1238	<	public void testHasQueuedThreads() throws InterruptedException {
1239	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
1238	>	public void testHasQueuedThreads()      { testHasQueuedThreads(false); }
1239	>	public void testHasQueuedThreads_fair() { testHasQueuedThreads(true); }
1240	>	public void testHasQueuedThreads(boolean fair) {
1241	>	final PublicReentrantReadWriteLock lock =
1242	>	new PublicReentrantReadWriteLock(fair);
1243		Thread t1 = new Thread(new InterruptedLockRunnable(lock));
1244		Thread t2 = new Thread(new InterruptibleLockRunnable(lock));
1245		assertFalse(lock.hasQueuedThreads());
#	Line 1244 | Line 1262 | public class ReentrantReadWriteLockTest
1262		/**
1263		* hasQueuedThread(null) throws NPE
1264		*/
1265	<	public void testHasQueuedThreadNPE() {
1266	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
1265	>	public void testHasQueuedThreadNPE()      { testHasQueuedThreadNPE(false); }
1266	>	public void testHasQueuedThreadNPE_fair() { testHasQueuedThreadNPE(true); }
1267	>	public void testHasQueuedThreadNPE(boolean fair) {
1268	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair);
1269		try {
1270		lock.hasQueuedThread(null);
1271		shouldThrow();
#	Line 1253 | Line 1273 | public class ReentrantReadWriteLockTest
1273		}
1274
1275		/**
1276	<	* hasQueuedThread reports whether a thread is queued.
1276	>	* hasQueuedThread reports whether a thread is queued
1277		*/
1278	<	public void testHasQueuedThread() throws InterruptedException {
1279	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
1278	>	public void testHasQueuedThread()      { testHasQueuedThread(false); }
1279	>	public void testHasQueuedThread_fair() { testHasQueuedThread(true); }
1280	>	public void testHasQueuedThread(boolean fair) {
1281	>	final PublicReentrantReadWriteLock lock =
1282	>	new PublicReentrantReadWriteLock(fair);
1283		Thread t1 = new Thread(new InterruptedLockRunnable(lock));
1284		Thread t2 = new Thread(new InterruptibleLockRunnable(lock));
1285		assertFalse(lock.hasQueuedThread(t1));
#	Line 1283 | Line 1306 | public class ReentrantReadWriteLockTest
1306		/**
1307		* getQueueLength reports number of waiting threads
1308		*/
1309	<	public void testGetQueueLength() throws InterruptedException {
1310	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
1309	>	public void testGetQueueLength()      { testGetQueueLength(false); }
1310	>	public void testGetQueueLength_fair() { testGetQueueLength(true); }
1311	>	public void testGetQueueLength(boolean fair) {
1312	>	final PublicReentrantReadWriteLock lock =
1313	>	new PublicReentrantReadWriteLock(fair);
1314		Thread t1 = new Thread(new InterruptedLockRunnable(lock));
1315		Thread t2 = new Thread(new InterruptibleLockRunnable(lock));
1316		assertEquals(0, lock.getQueueLength());
#	Line 1306 | Line 1332 | public class ReentrantReadWriteLockTest
1332		/**
1333		* getQueuedThreads includes waiting threads
1334		*/
1335	<	public void testGetQueuedThreads() throws InterruptedException {
1336	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
1335	>	public void testGetQueuedThreads()      { testGetQueuedThreads(false); }
1336	>	public void testGetQueuedThreads_fair() { testGetQueuedThreads(true); }
1337	>	public void testGetQueuedThreads(boolean fair) {
1338	>	final PublicReentrantReadWriteLock lock =
1339	>	new PublicReentrantReadWriteLock(fair);
1340		Thread t1 = new Thread(new InterruptedLockRunnable(lock));
1341		Thread t2 = new Thread(new InterruptibleLockRunnable(lock));
1342		assertTrue(lock.getQueuedThreads().isEmpty());
#	Line 1335 | Line 1364 | public class ReentrantReadWriteLockTest
1364		/**
1365		* hasWaiters throws NPE if null
1366		*/
1367	<	public void testHasWaitersNPE() {
1368	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
1367	>	public void testHasWaitersNPE()      { testHasWaitersNPE(false); }
1368	>	public void testHasWaitersNPE_fair() { testHasWaitersNPE(true); }
1369	>	public void testHasWaitersNPE(boolean fair) {
1370	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair);
1371		try {
1372		lock.hasWaiters(null);
1373		shouldThrow();
#	Line 1346 | Line 1377 | public class ReentrantReadWriteLockTest
1377		/**
1378		* getWaitQueueLength throws NPE if null
1379		*/
1380	<	public void testGetWaitQueueLengthNPE() {
1381	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
1380	>	public void testGetWaitQueueLengthNPE()      { testGetWaitQueueLengthNPE(false); }
1381	>	public void testGetWaitQueueLengthNPE_fair() { testGetWaitQueueLengthNPE(true); }
1382	>	public void testGetWaitQueueLengthNPE(boolean fair) {
1383	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair);
1384		try {
1385		lock.getWaitQueueLength(null);
1386		shouldThrow();
#	Line 1357 | Line 1390 | public class ReentrantReadWriteLockTest
1390		/**
1391		* getWaitingThreads throws NPE if null
1392		*/
1393	<	public void testGetWaitingThreadsNPE() {
1394	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
1393	>	public void testGetWaitingThreadsNPE()      { testGetWaitingThreadsNPE(false); }
1394	>	public void testGetWaitingThreadsNPE_fair() { testGetWaitingThreadsNPE(true); }
1395	>	public void testGetWaitingThreadsNPE(boolean fair) {
1396	>	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(fair);
1397		try {
1398		lock.getWaitingThreads(null);
1399		shouldThrow();
#	Line 1368 | Line 1403 | public class ReentrantReadWriteLockTest
1403		/**
1404		* hasWaiters throws IllegalArgumentException if not owned
1405		*/
1406	<	public void testHasWaitersIAE() {
1407	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
1406	>	public void testHasWaitersIAE()      { testHasWaitersIAE(false); }
1407	>	public void testHasWaitersIAE_fair() { testHasWaitersIAE(true); }
1408	>	public void testHasWaitersIAE(boolean fair) {
1409	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair);
1410		final Condition c = lock.writeLock().newCondition();
1411	<	final ReentrantReadWriteLock lock2 = new ReentrantReadWriteLock();
1411	>	final ReentrantReadWriteLock lock2 = new ReentrantReadWriteLock(fair);
1412		try {
1413		lock2.hasWaiters(c);
1414		shouldThrow();
#	Line 1381 | Line 1418 | public class ReentrantReadWriteLockTest
1418		/**
1419		* hasWaiters throws IllegalMonitorStateException if not locked
1420		*/
1421	<	public void testHasWaitersIMSE() {
1422	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
1421	>	public void testHasWaitersIMSE()      { testHasWaitersIMSE(false); }
1422	>	public void testHasWaitersIMSE_fair() { testHasWaitersIMSE(true); }
1423	>	public void testHasWaitersIMSE(boolean fair) {
1424	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair);
1425		final Condition c = lock.writeLock().newCondition();
1426		try {
1427		lock.hasWaiters(c);
#	Line 1393 | Line 1432 | public class ReentrantReadWriteLockTest
1432		/**
1433		* getWaitQueueLength throws IllegalArgumentException if not owned
1434		*/
1435	<	public void testGetWaitQueueLengthIAE() {
1436	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
1435	>	public void testGetWaitQueueLengthIAE()      { testGetWaitQueueLengthIAE(false); }
1436	>	public void testGetWaitQueueLengthIAE_fair() { testGetWaitQueueLengthIAE(true); }
1437	>	public void testGetWaitQueueLengthIAE(boolean fair) {
1438	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair);
1439		final Condition c = lock.writeLock().newCondition();
1440	<	final ReentrantReadWriteLock lock2 = new ReentrantReadWriteLock();
1440	>	final ReentrantReadWriteLock lock2 = new ReentrantReadWriteLock(fair);
1441		try {
1442		lock2.getWaitQueueLength(c);
1443		shouldThrow();
#	Line 1406 | Line 1447 | public class ReentrantReadWriteLockTest
1447		/**
1448		* getWaitQueueLength throws IllegalMonitorStateException if not locked
1449		*/
1450	<	public void testGetWaitQueueLengthIMSE() {
1451	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
1450	>	public void testGetWaitQueueLengthIMSE()      { testGetWaitQueueLengthIMSE(false); }
1451	>	public void testGetWaitQueueLengthIMSE_fair() { testGetWaitQueueLengthIMSE(true); }
1452	>	public void testGetWaitQueueLengthIMSE(boolean fair) {
1453	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair);
1454		final Condition c = lock.writeLock().newCondition();
1455		try {
1456		lock.getWaitQueueLength(c);
#	Line 1418 | Line 1461 | public class ReentrantReadWriteLockTest
1461		/**
1462		* getWaitingThreads throws IllegalArgumentException if not owned
1463		*/
1464	<	public void testGetWaitingThreadsIAE() {
1465	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
1464	>	public void testGetWaitingThreadsIAE()      { testGetWaitingThreadsIAE(false); }
1465	>	public void testGetWaitingThreadsIAE_fair() { testGetWaitingThreadsIAE(true); }
1466	>	public void testGetWaitingThreadsIAE(boolean fair) {
1467	>	final PublicReentrantReadWriteLock lock =
1468	>	new PublicReentrantReadWriteLock(fair);
1469		final Condition c = lock.writeLock().newCondition();
1470	<	final PublicReentrantReadWriteLock lock2 = new PublicReentrantReadWriteLock();
1470	>	final PublicReentrantReadWriteLock lock2 =
1471	>	new PublicReentrantReadWriteLock(fair);
1472		try {
1473		lock2.getWaitingThreads(c);
1474		shouldThrow();
#	Line 1431 | Line 1478 | public class ReentrantReadWriteLockTest
1478		/**
1479		* getWaitingThreads throws IllegalMonitorStateException if not locked
1480		*/
1481	<	public void testGetWaitingThreadsIMSE() {
1482	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
1481	>	public void testGetWaitingThreadsIMSE()      { testGetWaitingThreadsIMSE(false); }
1482	>	public void testGetWaitingThreadsIMSE_fair() { testGetWaitingThreadsIMSE(true); }
1483	>	public void testGetWaitingThreadsIMSE(boolean fair) {
1484	>	final PublicReentrantReadWriteLock lock =
1485	>	new PublicReentrantReadWriteLock(fair);
1486		final Condition c = lock.writeLock().newCondition();
1487		try {
1488		lock.getWaitingThreads(c);
#	Line 1443 | Line 1493 | public class ReentrantReadWriteLockTest
1493		/**
1494		* hasWaiters returns true when a thread is waiting, else false
1495		*/
1496	<	public void testHasWaiters() throws InterruptedException {
1497	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
1496	>	public void testHasWaiters()      { testHasWaiters(false); }
1497	>	public void testHasWaiters_fair() { testHasWaiters(true); }
1498	>	public void testHasWaiters(boolean fair) {
1499	>	final PublicReentrantReadWriteLock lock =
1500	>	new PublicReentrantReadWriteLock(fair);
1501		final Condition c = lock.writeLock().newCondition();
1502		final CountDownLatch locked = new CountDownLatch(1);
1503		Thread t = newStartedThread(new CheckedRunnable() {
#	Line 1459 | Line 1512 | public class ReentrantReadWriteLockTest
1512		lock.writeLock().unlock();
1513		}});
1514
1515	<	locked.await();
1515	>	await(locked);
1516		lock.writeLock().lock();
1517		assertHasWaiters(lock, c, t);
1518		assertTrue(lock.hasWaiters(c));
#	Line 1474 | Line 1527 | public class ReentrantReadWriteLockTest
1527		/**
1528		* getWaitQueueLength returns number of waiting threads
1529		*/
1530	<	public void testGetWaitQueueLength() throws InterruptedException {
1531	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
1530	>	public void testGetWaitQueueLength()      { testGetWaitQueueLength(false); }
1531	>	public void testGetWaitQueueLength_fair() { testGetWaitQueueLength(true); }
1532	>	public void testGetWaitQueueLength(boolean fair) {
1533	>	final PublicReentrantReadWriteLock lock =
1534	>	new PublicReentrantReadWriteLock(fair);
1535		final Condition c = lock.writeLock().newCondition();
1536		final CountDownLatch locked = new CountDownLatch(1);
1537		Thread t = newStartedThread(new CheckedRunnable() {
#	Line 1487 | Line 1543 | public class ReentrantReadWriteLockTest
1543		lock.writeLock().unlock();
1544		}});
1545
1546	<	locked.await();
1546	>	await(locked);
1547		lock.writeLock().lock();
1548		assertHasWaiters(lock, c, t);
1549		assertEquals(1, lock.getWaitQueueLength(c));
#	Line 1501 | Line 1557 | public class ReentrantReadWriteLockTest
1557		/**
1558		* getWaitingThreads returns only and all waiting threads
1559		*/
1560	<	public void testGetWaitingThreads() throws InterruptedException {
1561	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
1560	>	public void testGetWaitingThreads()      { testGetWaitingThreads(false); }
1561	>	public void testGetWaitingThreads_fair() { testGetWaitingThreads(true); }
1562	>	public void testGetWaitingThreads(boolean fair) {
1563	>	final PublicReentrantReadWriteLock lock =
1564	>	new PublicReentrantReadWriteLock(fair);
1565		final Condition c = lock.writeLock().newCondition();
1566		final CountDownLatch locked1 = new CountDownLatch(1);
1567		final CountDownLatch locked2 = new CountDownLatch(1);
#	Line 1529 | Line 1588 | public class ReentrantReadWriteLockTest
1588		lock.writeLock().unlock();
1589
1590		t1.start();
1591	<	locked1.await();
1591	>	await(locked1);
1592		t2.start();
1593	<	locked2.await();
1593	>	await(locked2);
1594
1595		lock.writeLock().lock();
1596		assertTrue(lock.hasWaiters(c));
#	Line 1551 | Line 1610 | public class ReentrantReadWriteLockTest
1610		/**
1611		* toString indicates current lock state
1612		*/
1613	<	public void testToString() {
1614	<	ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
1615	<	String us = lock.toString();
1616	<	assertTrue(us.indexOf("Write locks = 0") >= 0);
1617	<	assertTrue(us.indexOf("Read locks = 0") >= 0);
1618	<	lock.writeLock().lock();
1619	<	String ws = lock.toString();
1620	<	assertTrue(ws.indexOf("Write locks = 1") >= 0);
1621	<	assertTrue(ws.indexOf("Read locks = 0") >= 0);
1613	>	public void testToString()      { testToString(false); }
1614	>	public void testToString_fair() { testToString(true); }
1615	>	public void testToString(boolean fair) {
1616	>	ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair);
1617	>	assertTrue(lock.toString().contains("Write locks = 0"));
1618	>	assertTrue(lock.toString().contains("Read locks = 0"));
1619	>	lock.writeLock().lock();
1620	>	assertTrue(lock.toString().contains("Write locks = 1"));
1621	>	assertTrue(lock.toString().contains("Read locks = 0"));
1622		lock.writeLock().unlock();
1623		lock.readLock().lock();
1624		lock.readLock().lock();
1625	<	String rs = lock.toString();
1626	<	assertTrue(rs.indexOf("Write locks = 0") >= 0);
1568	<	assertTrue(rs.indexOf("Read locks = 2") >= 0);
1625	>	assertTrue(lock.toString().contains("Write locks = 0"));
1626	>	assertTrue(lock.toString().contains("Read locks = 2"));
1627		}
1628
1629		/**
1630		* readLock.toString indicates current lock state
1631		*/
1632	<	public void testReadLockToString() {
1633	<	ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
1634	<	String us = lock.readLock().toString();
1635	<	assertTrue(us.indexOf("Read locks = 0") >= 0);
1632	>	public void testReadLockToString()      { testReadLockToString(false); }
1633	>	public void testReadLockToString_fair() { testReadLockToString(true); }
1634	>	public void testReadLockToString(boolean fair) {
1635	>	ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair);
1636	>	assertTrue(lock.readLock().toString().contains("Read locks = 0"));
1637		lock.readLock().lock();
1638		lock.readLock().lock();
1639	<	String rs = lock.readLock().toString();
1581	<	assertTrue(rs.indexOf("Read locks = 2") >= 0);
1639	>	assertTrue(lock.readLock().toString().contains("Read locks = 2"));
1640		}
1641
1642		/**
1643		* writeLock.toString indicates current lock state
1644		*/
1645	<	public void testWriteLockToString() {
1646	<	ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
1647	<	String us = lock.writeLock().toString();
1648	<	assertTrue(us.indexOf("Unlocked") >= 0);
1645	>	public void testWriteLockToString()      { testWriteLockToString(false); }
1646	>	public void testWriteLockToString_fair() { testWriteLockToString(true); }
1647	>	public void testWriteLockToString(boolean fair) {
1648	>	ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair);
1649	>	assertTrue(lock.writeLock().toString().contains("Unlocked"));
1650		lock.writeLock().lock();
1651	<	String ls = lock.writeLock().toString();
1652	<	assertTrue(ls.indexOf("Locked") >= 0);
1651	>	assertTrue(lock.writeLock().toString().contains("Locked"));
1652	>	lock.writeLock().unlock();
1653	>	assertTrue(lock.writeLock().toString().contains("Unlocked"));
1654		}
1655
1656		}

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