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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 1.65 by jsr166, Tue May 31 16:16:24 2011 UTC

#	Line 8 | Line 8
8
9		import junit.framework.*;
10		import java.util.concurrent.atomic.AtomicBoolean;
11	<	import java.util.concurrent.locks.*;
12	<	import java.util.concurrent.*;
11	>	import java.util.concurrent.locks.Condition;
12	>	import java.util.concurrent.locks.Lock;
13	>	import java.util.concurrent.locks.ReentrantReadWriteLock;
14	>	import java.util.concurrent.CountDownLatch;
15		import static java.util.concurrent.TimeUnit.MILLISECONDS;
14	–	import java.io.*;
16		import java.util.*;
17
18		public class ReentrantReadWriteLockTest extends JSR166TestCase {
#	Line 67 | Line 68 | public class ReentrantReadWriteLockTest
68		*/
69		void releaseWriteLock(PublicReentrantReadWriteLock lock) {
70		ReentrantReadWriteLock.WriteLock writeLock = lock.writeLock();
71	<	assertWriteLockedBy(lock, Thread.currentThread());
71	>	assertWriteLockedByMoi(lock);
72		assertEquals(1, lock.getWriteHoldCount());
73		writeLock.unlock();
74		assertNotWriteLocked(lock);
#	Line 80 | Line 81 | public class ReentrantReadWriteLockTest
81		long startTime = System.nanoTime();
82		while (!lock.hasQueuedThread(t)) {
83		if (millisElapsedSince(startTime) > LONG_DELAY_MS)
84	<	throw new AssertionError("timed out");
84	>	throw new AssertionFailedError("timed out");
85		Thread.yield();
86		}
87		assertTrue(t.isAlive());
#	Line 94 | Line 95 | public class ReentrantReadWriteLockTest
95		assertFalse(lock.isWriteLocked());
96		assertFalse(lock.isWriteLockedByCurrentThread());
97		assertFalse(lock.writeLock().isHeldByCurrentThread());
97	–	assertNull(lock.getOwner());
98		assertEquals(0, lock.getWriteHoldCount());
99	+	assertEquals(0, lock.writeLock().getHoldCount());
100	+	assertNull(lock.getOwner());
101		}
102
103		/**
#	Line 110 | Line 112 | public class ReentrantReadWriteLockTest
112		lock.writeLock().isHeldByCurrentThread());
113		assertEquals(t == Thread.currentThread(),
114		lock.getWriteHoldCount() > 0);
115	+	assertEquals(t == Thread.currentThread(),
116	+	lock.writeLock().getHoldCount() > 0);
117		assertEquals(0, lock.getReadLockCount());
118		}
119
120		/**
121	+	* Checks that lock is write-locked by the current thread.
122	+	*/
123	+	void assertWriteLockedByMoi(PublicReentrantReadWriteLock lock) {
124	+	assertWriteLockedBy(lock, Thread.currentThread());
125	+	}
126	+
127	+	/**
128		* Checks that condition c has no waiters.
129		*/
130		void assertHasNoWaiters(PublicReentrantReadWriteLock lock, Condition c) {
#	Line 135 | Line 146 | public class ReentrantReadWriteLockTest
146		lock.writeLock().unlock();
147		}
148
149	+	enum AwaitMethod { await, awaitTimed, awaitNanos, awaitUntil };
150	+
151	+	/**
152	+	* Awaits condition using the specified AwaitMethod.
153	+	*/
154	+	void await(Condition c, AwaitMethod awaitMethod)
155	+	throws InterruptedException {
156	+	switch (awaitMethod) {
157	+	case await:
158	+	c.await();
159	+	break;
160	+	case awaitTimed:
161	+	assertTrue(c.await(2 * LONG_DELAY_MS, MILLISECONDS));
162	+	break;
163	+	case awaitNanos:
164	+	long nanosRemaining = c.awaitNanos(MILLISECONDS.toNanos(2 * LONG_DELAY_MS));
165	+	assertTrue(nanosRemaining > 0);
166	+	break;
167	+	case awaitUntil:
168	+	java.util.Date d = new java.util.Date();
169	+	assertTrue(c.awaitUntil(new java.util.Date(d.getTime() + 2 * LONG_DELAY_MS)));
170	+	break;
171	+	}
172	+	}
173	+
174		/**
175		* Constructor sets given fairness, and is in unlocked state
176		*/
#	Line 160 | Line 196 | public class ReentrantReadWriteLockTest
196		/**
197		* write-locking and read-locking an unlocked lock succeed
198		*/
199	<	public void testLock() {
200	<	PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
201	<	assertNotWriteLocked(lock);
202	<	lock.writeLock().lock();
203	<	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);
199	>	public void testLock()      { testLock(false); }
200	>	public void testLock_fair() { testLock(true); }
201	>	public void testLock(boolean fair) {
202	>	PublicReentrantReadWriteLock lock =
203	>	new PublicReentrantReadWriteLock(fair);
204		assertNotWriteLocked(lock);
205		lock.writeLock().lock();
206	<	assertWriteLockedBy(lock, Thread.currentThread());
206	>	assertWriteLockedByMoi(lock);
207		lock.writeLock().unlock();
208		assertNotWriteLocked(lock);
209		assertEquals(0, lock.getReadLockCount());
#	Line 198 | Line 218 | public class ReentrantReadWriteLockTest
218		/**
219		* getWriteHoldCount returns number of recursive holds
220		*/
221	<	public void testGetWriteHoldCount() {
222	<	ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
221	>	public void testGetWriteHoldCount()      { testGetWriteHoldCount(false); }
222	>	public void testGetWriteHoldCount_fair() { testGetWriteHoldCount(true); }
223	>	public void testGetWriteHoldCount(boolean fair) {
224	>	ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair);
225		for (int i = 1; i <= SIZE; i++) {
226		lock.writeLock().lock();
227		assertEquals(i,lock.getWriteHoldCount());
#	Line 211 | Line 233 | public class ReentrantReadWriteLockTest
233		}
234
235		/**
236	<	* WriteLock.getHoldCount returns number of recursive holds
236	>	* writelock.getHoldCount returns number of recursive holds
237		*/
238	<	public void testGetHoldCount() {
239	<	ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
238	>	public void testGetHoldCount()      { testGetHoldCount(false); }
239	>	public void testGetHoldCount_fair() { testGetHoldCount(true); }
240	>	public void testGetHoldCount(boolean fair) {
241	>	ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair);
242		for (int i = 1; i <= SIZE; i++) {
243		lock.writeLock().lock();
244		assertEquals(i,lock.writeLock().getHoldCount());
#	Line 228 | Line 252 | public class ReentrantReadWriteLockTest
252		/**
253		* getReadHoldCount returns number of recursive holds
254		*/
255	<	public void testGetReadHoldCount() {
256	<	ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
255	>	public void testGetReadHoldCount()      { testGetReadHoldCount(false); }
256	>	public void testGetReadHoldCount_fair() { testGetReadHoldCount(true); }
257	>	public void testGetReadHoldCount(boolean fair) {
258	>	ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair);
259		for (int i = 1; i <= SIZE; i++) {
260		lock.readLock().lock();
261		assertEquals(i,lock.getReadHoldCount());
#	Line 243 | Line 269 | public class ReentrantReadWriteLockTest
269		/**
270		* write-unlocking an unlocked lock throws IllegalMonitorStateException
271		*/
272	<	public void testWriteUnlock_IllegalMonitorStateException() {
273	<	ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
272	>	public void testWriteUnlock_IMSE()      { testWriteUnlock_IMSE(false); }
273	>	public void testWriteUnlock_IMSE_fair() { testWriteUnlock_IMSE(true); }
274	>	public void testWriteUnlock_IMSE(boolean fair) {
275	>	ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair);
276		try {
277		lock.writeLock().unlock();
278		shouldThrow();
#	Line 254 | Line 282 | public class ReentrantReadWriteLockTest
282		/**
283		* read-unlocking an unlocked lock throws IllegalMonitorStateException
284		*/
285	<	public void testReadUnlock_IllegalMonitorStateException() {
286	<	ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
285	>	public void testReadUnlock_IMSE()      { testReadUnlock_IMSE(false); }
286	>	public void testReadUnlock_IMSE_fair() { testReadUnlock_IMSE(true); }
287	>	public void testReadUnlock_IMSE(boolean fair) {
288	>	ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair);
289		try {
290		lock.readLock().unlock();
291		shouldThrow();
#	Line 265 | Line 295 | public class ReentrantReadWriteLockTest
295		/**
296		* write-lockInterruptibly is interruptible
297		*/
298	<	public void testWriteLockInterruptibly_Interrupted() throws Exception {
299	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
298	>	public void testWriteLockInterruptibly_Interruptible()      { testWriteLockInterruptibly_Interruptible(false); }
299	>	public void testWriteLockInterruptibly_Interruptible_fair() { testWriteLockInterruptibly_Interruptible(true); }
300	>	public void testWriteLockInterruptibly_Interruptible(boolean fair) {
301	>	final PublicReentrantReadWriteLock lock =
302	>	new PublicReentrantReadWriteLock(fair);
303		lock.writeLock().lock();
304		Thread t = newStartedThread(new CheckedInterruptedRunnable() {
305		public void realRun() throws InterruptedException {
#	Line 282 | Line 315 | public class ReentrantReadWriteLockTest
315		/**
316		* timed write-tryLock is interruptible
317		*/
318	<	public void testWriteTryLock_Interrupted() throws InterruptedException {
319	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
318	>	public void testWriteTryLock_Interruptible()      { testWriteTryLock_Interruptible(false); }
319	>	public void testWriteTryLock_Interruptible_fair() { testWriteTryLock_Interruptible(true); }
320	>	public void testWriteTryLock_Interruptible(boolean fair) {
321	>	final PublicReentrantReadWriteLock lock =
322	>	new PublicReentrantReadWriteLock(fair);
323		lock.writeLock().lock();
324		Thread t = newStartedThread(new CheckedInterruptedRunnable() {
325		public void realRun() throws InterruptedException {
#	Line 299 | Line 335 | public class ReentrantReadWriteLockTest
335		/**
336		* read-lockInterruptibly is interruptible
337		*/
338	<	public void testReadLockInterruptibly_Interrupted() throws InterruptedException {
339	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
338	>	public void testReadLockInterruptibly_Interruptible()      { testReadLockInterruptibly_Interruptible(false); }
339	>	public void testReadLockInterruptibly_Interruptible_fair() { testReadLockInterruptibly_Interruptible(true); }
340	>	public void testReadLockInterruptibly_Interruptible(boolean fair) {
341	>	final PublicReentrantReadWriteLock lock =
342	>	new PublicReentrantReadWriteLock(fair);
343		lock.writeLock().lock();
344		Thread t = newStartedThread(new CheckedInterruptedRunnable() {
345		public void realRun() throws InterruptedException {
#	Line 316 | Line 355 | public class ReentrantReadWriteLockTest
355		/**
356		* timed read-tryLock is interruptible
357		*/
358	<	public void testReadTryLock_Interrupted() throws InterruptedException {
359	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
358	>	public void testReadTryLock_Interruptible()      { testReadTryLock_Interruptible(false); }
359	>	public void testReadTryLock_Interruptible_fair() { testReadTryLock_Interruptible(true); }
360	>	public void testReadTryLock_Interruptible(boolean fair) {
361	>	final PublicReentrantReadWriteLock lock =
362	>	new PublicReentrantReadWriteLock(fair);
363		lock.writeLock().lock();
364		Thread t = newStartedThread(new CheckedInterruptedRunnable() {
365		public void realRun() throws InterruptedException {
#	Line 331 | Line 373 | public class ReentrantReadWriteLockTest
373		}
374
375		/**
376	+	* write-tryLock on an unlocked lock succeeds
377	+	*/
378	+	public void testWriteTryLock()      { testWriteTryLock(false); }
379	+	public void testWriteTryLock_fair() { testWriteTryLock(true); }
380	+	public void testWriteTryLock(boolean fair) {
381	+	final PublicReentrantReadWriteLock lock =
382	+	new PublicReentrantReadWriteLock(fair);
383	+	assertTrue(lock.writeLock().tryLock());
384	+	assertWriteLockedByMoi(lock);
385	+	assertTrue(lock.writeLock().tryLock());
386	+	assertWriteLockedByMoi(lock);
387	+	lock.writeLock().unlock();
388	+	releaseWriteLock(lock);
389	+	}
390	+
391	+	/**
392		* write-tryLock fails if locked
393		*/
394	<	public void testWriteTryLockWhenLocked() throws InterruptedException {
395	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
394	>	public void testWriteTryLockWhenLocked()      { testWriteTryLockWhenLocked(false); }
395	>	public void testWriteTryLockWhenLocked_fair() { testWriteTryLockWhenLocked(true); }
396	>	public void testWriteTryLockWhenLocked(boolean fair) {
397	>	final PublicReentrantReadWriteLock lock =
398	>	new PublicReentrantReadWriteLock(fair);
399		lock.writeLock().lock();
400		Thread t = newStartedThread(new CheckedRunnable() {
401		public void realRun() {
#	Line 348 | Line 409 | public class ReentrantReadWriteLockTest
409		/**
410		* read-tryLock fails if locked
411		*/
412	<	public void testReadTryLockWhenLocked() throws InterruptedException {
413	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
412	>	public void testReadTryLockWhenLocked()      { testReadTryLockWhenLocked(false); }
413	>	public void testReadTryLockWhenLocked_fair() { testReadTryLockWhenLocked(true); }
414	>	public void testReadTryLockWhenLocked(boolean fair) {
415	>	final PublicReentrantReadWriteLock lock =
416	>	new PublicReentrantReadWriteLock(fair);
417		lock.writeLock().lock();
418		Thread t = newStartedThread(new CheckedRunnable() {
419		public void realRun() {
#	Line 363 | Line 427 | public class ReentrantReadWriteLockTest
427		/**
428		* Multiple threads can hold a read lock when not write-locked
429		*/
430	<	public void testMultipleReadLocks() throws InterruptedException {
431	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
430	>	public void testMultipleReadLocks()      { testMultipleReadLocks(false); }
431	>	public void testMultipleReadLocks_fair() { testMultipleReadLocks(true); }
432	>	public void testMultipleReadLocks(boolean fair) {
433	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair);
434		lock.readLock().lock();
435		Thread t = newStartedThread(new CheckedRunnable() {
436	<	public void realRun() {
436	>	public void realRun() throws InterruptedException {
437		assertTrue(lock.readLock().tryLock());
438		lock.readLock().unlock();
439	+	assertTrue(lock.readLock().tryLock(LONG_DELAY_MS, MILLISECONDS));
440	+	lock.readLock().unlock();
441	+	lock.readLock().lock();
442	+	lock.readLock().unlock();
443		}});
444
445		awaitTermination(t);
#	Line 379 | Line 449 | public class ReentrantReadWriteLockTest
449		/**
450		* A writelock succeeds only after a reading thread unlocks
451		*/
452	<	public void testWriteAfterReadLock() throws InterruptedException {
453	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
452	>	public void testWriteAfterReadLock()      { testWriteAfterReadLock(false); }
453	>	public void testWriteAfterReadLock_fair() { testWriteAfterReadLock(true); }
454	>	public void testWriteAfterReadLock(boolean fair) {
455	>	final PublicReentrantReadWriteLock lock =
456	>	new PublicReentrantReadWriteLock(fair);
457		lock.readLock().lock();
385	–
458		Thread t = newStartedThread(new CheckedRunnable() {
459		public void realRun() {
460		assertEquals(1, lock.getReadLockCount());
#	Line 402 | Line 474 | public class ReentrantReadWriteLockTest
474		/**
475		* A writelock succeeds only after reading threads unlock
476		*/
477	<	public void testWriteAfterMultipleReadLocks() throws InterruptedException {
478	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
477	>	public void testWriteAfterMultipleReadLocks()      { testWriteAfterMultipleReadLocks(false); }
478	>	public void testWriteAfterMultipleReadLocks_fair() { testWriteAfterMultipleReadLocks(true); }
479	>	public void testWriteAfterMultipleReadLocks(boolean fair) {
480	>	final PublicReentrantReadWriteLock lock =
481	>	new PublicReentrantReadWriteLock(fair);
482		lock.readLock().lock();
483		lock.readLock().lock();
484		Thread t1 = newStartedThread(new CheckedRunnable() {
#	Line 433 | Line 508 | public class ReentrantReadWriteLockTest
508
509		/**
510		* A thread that tries to acquire a fair read lock (non-reentrantly)
511	<	* will block if there is a waiting writer thread.
511	>	* will block if there is a waiting writer thread
512		*/
513	<	public void testReaderWriterReaderFairFifo() throws InterruptedException {
514	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(true);
513	>	public void testReaderWriterReaderFairFifo() {
514	>	final PublicReentrantReadWriteLock lock =
515	>	new PublicReentrantReadWriteLock(true);
516		final AtomicBoolean t1GotLock = new AtomicBoolean(false);
517
518		lock.readLock().lock();
#	Line 471 | Line 547 | public class ReentrantReadWriteLockTest
547		/**
548		* Readlocks succeed only after a writing thread unlocks
549		*/
550	<	public void testReadAfterWriteLock() throws InterruptedException {
551	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
550	>	public void testReadAfterWriteLock()      { testReadAfterWriteLock(false); }
551	>	public void testReadAfterWriteLock_fair() { testReadAfterWriteLock(true); }
552	>	public void testReadAfterWriteLock(boolean fair) {
553	>	final PublicReentrantReadWriteLock lock =
554	>	new PublicReentrantReadWriteLock(fair);
555		lock.writeLock().lock();
556		Thread t1 = newStartedThread(new CheckedRunnable() {
557		public void realRun() {
#	Line 495 | Line 574 | public class ReentrantReadWriteLockTest
574		/**
575		* Read trylock succeeds if write locked by current thread
576		*/
577	<	public void testReadHoldingWriteLock() {
578	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
577	>	public void testReadHoldingWriteLock()      { testReadHoldingWriteLock(false); }
578	>	public void testReadHoldingWriteLock_fair() { testReadHoldingWriteLock(true); }
579	>	public void testReadHoldingWriteLock(boolean fair) {
580	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair);
581		lock.writeLock().lock();
582		assertTrue(lock.readLock().tryLock());
583		lock.readLock().unlock();
#	Line 504 | Line 585 | public class ReentrantReadWriteLockTest
585		}
586
587		/**
588	<	* Read lock succeeds if write locked by current thread even if
589	<	* other threads are waiting for readlock
588	>	* Read trylock succeeds (barging) even in the presence of waiting
589	>	* readers and/or writers
590		*/
591	<	public void testReadHoldingWriteLock2() throws InterruptedException {
592	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
593	<	lock.writeLock().lock();
591	>	public void testReadTryLockBarging()      { testReadTryLockBarging(false); }
592	>	public void testReadTryLockBarging_fair() { testReadTryLockBarging(true); }
593	>	public void testReadTryLockBarging(boolean fair) {
594	>	final PublicReentrantReadWriteLock lock =
595	>	new PublicReentrantReadWriteLock(fair);
596		lock.readLock().lock();
514	–	lock.readLock().unlock();
597
598		Thread t1 = newStartedThread(new CheckedRunnable() {
599		public void realRun() {
600	<	lock.readLock().lock();
601	<	lock.readLock().unlock();
520	<	}});
521	<	Thread t2 = newStartedThread(new CheckedRunnable() {
522	<	public void realRun() {
523	<	lock.readLock().lock();
524	<	lock.readLock().unlock();
600	>	lock.writeLock().lock();
601	>	lock.writeLock().unlock();
602		}});
603
604		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	–	}
605
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();
546	–
547	–	Thread t1 = newStartedThread(new CheckedRunnable() {
548	–	public void realRun() {
549	–	lock.writeLock().lock();
550	–	lock.writeLock().unlock();
551	–	}});
606		Thread t2 = newStartedThread(new CheckedRunnable() {
607		public void realRun() {
608	<	lock.writeLock().lock();
609	<	lock.writeLock().unlock();
608	>	lock.readLock().lock();
609	>	lock.readLock().unlock();
610		}});
611
612	<	waitForQueuedThread(lock, t1);
613	<	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();
612	>	if (fair)
613	>	waitForQueuedThread(lock, t2);
614
615	<	Thread t1 = newStartedThread(new CheckedRunnable() {
615	>	Thread t3 = newStartedThread(new CheckedRunnable() {
616		public void realRun() {
617	<	lock.writeLock().lock();
618	<	lock.writeLock().unlock();
582	<	}});
583	<	Thread t2 = newStartedThread(new CheckedRunnable() {
584	<	public void realRun() {
585	<	lock.writeLock().lock();
586	<	lock.writeLock().unlock();
617	>	lock.readLock().tryLock();
618	>	lock.readLock().unlock();
619		}});
620
621	<	waitForQueuedThread(lock, t1);
622	<	waitForQueuedThread(lock, t2);
623	<	assertWriteLockedBy(lock, Thread.currentThread());
624	<	assertEquals(1, lock.getWriteHoldCount());
625	<	lock.writeLock().lock();
594	<	assertWriteLockedBy(lock, Thread.currentThread());
595	<	assertEquals(2, lock.getWriteHoldCount());
596	<	lock.writeLock().unlock();
597	<	releaseWriteLock(lock);
621	>	assertTrue(lock.getReadLockCount() > 0);
622	>	awaitTermination(t3);
623	>	assertTrue(t1.isAlive());
624	>	if (fair) assertTrue(t2.isAlive());
625	>	lock.readLock().unlock();
626		awaitTermination(t1);
627		awaitTermination(t2);
628		}
629
630		/**
631	<	* 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
631	>	* Read lock succeeds if write locked by current thread even if
632		* other threads are waiting for readlock
633		*/
634	<	public void testReadHoldingWriteLockFair2() throws InterruptedException {
635	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(true);
634	>	public void testReadHoldingWriteLock2()      { testReadHoldingWriteLock2(false); }
635	>	public void testReadHoldingWriteLock2_fair() { testReadHoldingWriteLock2(true); }
636	>	public void testReadHoldingWriteLock2(boolean fair) {
637	>	final PublicReentrantReadWriteLock lock =
638	>	new PublicReentrantReadWriteLock(fair);
639		lock.writeLock().lock();
640		lock.readLock().lock();
641		lock.readLock().unlock();
#	Line 633 | Line 653 | public class ReentrantReadWriteLockTest
653
654		waitForQueuedThread(lock, t1);
655		waitForQueuedThread(lock, t2);
656	<	assertWriteLockedBy(lock, Thread.currentThread());
656	>	assertWriteLockedByMoi(lock);
657		lock.readLock().lock();
658		lock.readLock().unlock();
659		releaseWriteLock(lock);
#	Line 642 | Line 662 | public class ReentrantReadWriteLockTest
662		}
663
664		/**
665	<	* Fair Read lock succeeds if write locked by current thread even if
665	>	* Read lock succeeds if write locked by current thread even if
666		* other threads are waiting for writelock
667		*/
668	<	public void testReadHoldingWriteLockFair3() throws InterruptedException {
669	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(true);
668	>	public void testReadHoldingWriteLock3()      { testReadHoldingWriteLock3(false); }
669	>	public void testReadHoldingWriteLock3_fair() { testReadHoldingWriteLock3(true); }
670	>	public void testReadHoldingWriteLock3(boolean fair) {
671	>	final PublicReentrantReadWriteLock lock =
672	>	new PublicReentrantReadWriteLock(fair);
673		lock.writeLock().lock();
674		lock.readLock().lock();
675		lock.readLock().unlock();
#	Line 664 | Line 687 | public class ReentrantReadWriteLockTest
687
688		waitForQueuedThread(lock, t1);
689		waitForQueuedThread(lock, t2);
690	<	assertWriteLockedBy(lock, Thread.currentThread());
690	>	assertWriteLockedByMoi(lock);
691		lock.readLock().lock();
692		lock.readLock().unlock();
693	<	releaseWriteLock(lock);
693	>	assertWriteLockedByMoi(lock);
694	>	lock.writeLock().unlock();
695		awaitTermination(t1);
696		awaitTermination(t2);
697		}
698
699		/**
700	<	* Fair Write lock succeeds if write locked by current thread even if
700	>	* Write lock succeeds if write locked by current thread even if
701		* other threads are waiting for writelock
702		*/
703	<	public void testWriteHoldingWriteLockFair4() throws InterruptedException {
704	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(true);
703	>	public void testWriteHoldingWriteLock4()      { testWriteHoldingWriteLock4(false); }
704	>	public void testWriteHoldingWriteLock4_fair() { testWriteHoldingWriteLock4(true); }
705	>	public void testWriteHoldingWriteLock4(boolean fair) {
706	>	final PublicReentrantReadWriteLock lock =
707	>	new PublicReentrantReadWriteLock(fair);
708		lock.writeLock().lock();
709	+	lock.writeLock().lock();
710	+	lock.writeLock().unlock();
711	+
712		Thread t1 = newStartedThread(new CheckedRunnable() {
713		public void realRun() {
714		lock.writeLock().lock();
#	Line 692 | Line 722 | public class ReentrantReadWriteLockTest
722
723		waitForQueuedThread(lock, t1);
724		waitForQueuedThread(lock, t2);
725	<	assertWriteLockedBy(lock, Thread.currentThread());
725	>	assertWriteLockedByMoi(lock);
726		assertEquals(1, lock.getWriteHoldCount());
727		lock.writeLock().lock();
728	+	assertWriteLockedByMoi(lock);
729		assertEquals(2, lock.getWriteHoldCount());
730		lock.writeLock().unlock();
731	<	lock.writeLock().lock();
731	>	assertWriteLockedByMoi(lock);
732	>	assertEquals(1, lock.getWriteHoldCount());
733		lock.writeLock().unlock();
702	–	releaseWriteLock(lock);
734		awaitTermination(t1);
735		awaitTermination(t2);
736		}
#	Line 707 | Line 738 | public class ReentrantReadWriteLockTest
738		/**
739		* Read tryLock succeeds if readlocked but not writelocked
740		*/
741	<	public void testTryLockWhenReadLocked() throws InterruptedException {
742	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
741	>	public void testTryLockWhenReadLocked()      { testTryLockWhenReadLocked(false); }
742	>	public void testTryLockWhenReadLocked_fair() { testTryLockWhenReadLocked(true); }
743	>	public void testTryLockWhenReadLocked(boolean fair) {
744	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair);
745		lock.readLock().lock();
746		Thread t = newStartedThread(new CheckedRunnable() {
747		public void realRun() {
#	Line 723 | Line 756 | public class ReentrantReadWriteLockTest
756		/**
757		* write tryLock fails when readlocked
758		*/
759	<	public void testWriteTryLockWhenReadLocked() throws InterruptedException {
760	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
761	<	lock.readLock().lock();
762	<	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);
759	>	public void testWriteTryLockWhenReadLocked()      { testWriteTryLockWhenReadLocked(false); }
760	>	public void testWriteTryLockWhenReadLocked_fair() { testWriteTryLockWhenReadLocked(true); }
761	>	public void testWriteTryLockWhenReadLocked(boolean fair) {
762	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair);
763		lock.readLock().lock();
764		Thread t = newStartedThread(new CheckedRunnable() {
765		public void realRun() {
#	Line 769 | Line 773 | public class ReentrantReadWriteLockTest
773		/**
774		* write timed tryLock times out if locked
775		*/
776	<	public void testWriteTryLock_Timeout() throws InterruptedException {
777	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
776	>	public void testWriteTryLock_Timeout()      { testWriteTryLock_Timeout(false); }
777	>	public void testWriteTryLock_Timeout_fair() { testWriteTryLock_Timeout(true); }
778	>	public void testWriteTryLock_Timeout(boolean fair) {
779	>	final PublicReentrantReadWriteLock lock =
780	>	new PublicReentrantReadWriteLock(fair);
781		lock.writeLock().lock();
782		Thread t = newStartedThread(new CheckedRunnable() {
783		public void realRun() throws InterruptedException {
#	Line 781 | Line 788 | public class ReentrantReadWriteLockTest
788		}});
789
790		awaitTermination(t);
791	<	assertTrue(lock.writeLock().isHeldByCurrentThread());
785	<	lock.writeLock().unlock();
791	>	releaseWriteLock(lock);
792		}
793
794		/**
795		* read timed tryLock times out if write-locked
796		*/
797	<	public void testReadTryLock_Timeout() throws InterruptedException {
798	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
797	>	public void testReadTryLock_Timeout()      { testReadTryLock_Timeout(false); }
798	>	public void testReadTryLock_Timeout_fair() { testReadTryLock_Timeout(true); }
799	>	public void testReadTryLock_Timeout(boolean fair) {
800	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair);
801		lock.writeLock().lock();
802		Thread t = newStartedThread(new CheckedRunnable() {
803		public void realRun() throws InterruptedException {
#	Line 805 | Line 813 | public class ReentrantReadWriteLockTest
813		}
814
815		/**
816	<	* write lockInterruptibly succeeds if lock free else is interruptible
816	>	* write lockInterruptibly succeeds if unlocked, else is interruptible
817		*/
818	<	public void testWriteLockInterruptibly() throws InterruptedException {
819	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
820	<	lock.writeLock().lockInterruptibly();
818	>	public void testWriteLockInterruptibly()      { testWriteLockInterruptibly(false); }
819	>	public void testWriteLockInterruptibly_fair() { testWriteLockInterruptibly(true); }
820	>	public void testWriteLockInterruptibly(boolean fair) {
821	>	final PublicReentrantReadWriteLock lock =
822	>	new PublicReentrantReadWriteLock(fair);
823	>	try {
824	>	lock.writeLock().lockInterruptibly();
825	>	} catch (InterruptedException ie) {
826	>	threadUnexpectedException(ie);
827	>	}
828		Thread t = newStartedThread(new CheckedInterruptedRunnable() {
829		public void realRun() throws InterruptedException {
830		lock.writeLock().lockInterruptibly();
#	Line 817 | Line 832 | public class ReentrantReadWriteLockTest
832
833		waitForQueuedThread(lock, t);
834		t.interrupt();
835	+	assertTrue(lock.writeLock().isHeldByCurrentThread());
836		awaitTermination(t);
837		releaseWriteLock(lock);
838		}
#	Line 824 | Line 840 | public class ReentrantReadWriteLockTest
840		/**
841		* read lockInterruptibly succeeds if lock free else is interruptible
842		*/
843	<	public void testReadLockInterruptibly() throws InterruptedException {
844	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
845	<	lock.writeLock().lockInterruptibly();
843	>	public void testReadLockInterruptibly()      { testReadLockInterruptibly(false); }
844	>	public void testReadLockInterruptibly_fair() { testReadLockInterruptibly(true); }
845	>	public void testReadLockInterruptibly(boolean fair) {
846	>	final PublicReentrantReadWriteLock lock =
847	>	new PublicReentrantReadWriteLock(fair);
848	>	try {
849	>	lock.readLock().lockInterruptibly();
850	>	lock.readLock().unlock();
851	>	lock.writeLock().lockInterruptibly();
852	>	} catch (InterruptedException ie) {
853	>	threadUnexpectedException(ie);
854	>	}
855		Thread t = newStartedThread(new CheckedInterruptedRunnable() {
856		public void realRun() throws InterruptedException {
857		lock.readLock().lockInterruptibly();
#	Line 841 | Line 866 | public class ReentrantReadWriteLockTest
866		/**
867		* Calling await without holding lock throws IllegalMonitorStateException
868		*/
869	<	public void testAwait_IllegalMonitor() throws InterruptedException {
870	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
871	<	final Condition c = lock.writeLock().newCondition();
872	<	try {
873	<	c.await();
874	<	shouldThrow();
875	<	} catch (IllegalMonitorStateException success) {}
876	<	try {
877	<	c.await(LONG_DELAY_MS, MILLISECONDS);
878	<	shouldThrow();
879	<	} catch (IllegalMonitorStateException success) {}
880	<	try {
881	<	c.awaitNanos(100);
882	<	shouldThrow();
858	<	} catch (IllegalMonitorStateException success) {}
859	<	try {
860	<	c.awaitUninterruptibly();
861	<	shouldThrow();
862	<	} catch (IllegalMonitorStateException success) {}
869	>	public void testAwait_IMSE()      { testAwait_IMSE(false); }
870	>	public void testAwait_IMSE_fair() { testAwait_IMSE(true); }
871	>	public void testAwait_IMSE(boolean fair) {
872	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair);
873	>	final Condition c = lock.writeLock().newCondition();
874	>	for (AwaitMethod awaitMethod : AwaitMethod.values()) {
875	>	long startTime = System.nanoTime();
876	>	try {
877	>	await(c, awaitMethod);
878	>	shouldThrow();
879	>	} catch (IllegalMonitorStateException success) {
880	>	} catch (InterruptedException e) { threadUnexpectedException(e); }
881	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
882	>	}
883		}
884
885		/**
886		* Calling signal without holding lock throws IllegalMonitorStateException
887		*/
888	<	public void testSignal_IllegalMonitor() {
889	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
888	>	public void testSignal_IMSE()      { testSignal_IMSE(false); }
889	>	public void testSignal_IMSE_fair() { testSignal_IMSE(true); }
890	>	public void testSignal_IMSE(boolean fair) {
891	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair);
892		final Condition c = lock.writeLock().newCondition();
893		try {
894		c.signal();
#	Line 877 | Line 899 | public class ReentrantReadWriteLockTest
899		/**
900		* Calling signalAll without holding lock throws IllegalMonitorStateException
901		*/
902	<	public void testSignalAll_IllegalMonitor() {
903	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
902	>	public void testSignalAll_IMSE()      { testSignalAll_IMSE(false); }
903	>	public void testSignalAll_IMSE_fair() { testSignalAll_IMSE(true); }
904	>	public void testSignalAll_IMSE(boolean fair) {
905	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair);
906		final Condition c = lock.writeLock().newCondition();
907		try {
908		c.signalAll();
#	Line 889 | Line 913 | public class ReentrantReadWriteLockTest
913		/**
914		* awaitNanos without a signal times out
915		*/
916	<	public void testAwaitNanos_Timeout() throws InterruptedException {
917	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
918	<	final Condition c = lock.writeLock().newCondition();
919	<	lock.writeLock().lock();
920	<	long startTime = System.nanoTime();
921	<	long timeoutMillis = 10;
922	<	long timeoutNanos = MILLISECONDS.toNanos(timeoutMillis);
923	<	long nanosRemaining = c.awaitNanos(timeoutNanos);
924	<	assertTrue(nanosRemaining <= 0);
925	<	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
926	<	lock.writeLock().unlock();
916	>	public void testAwaitNanos_Timeout()      { testAwaitNanos_Timeout(false); }
917	>	public void testAwaitNanos_Timeout_fair() { testAwaitNanos_Timeout(true); }
918	>	public void testAwaitNanos_Timeout(boolean fair) {
919	>	try {
920	>	final ReentrantReadWriteLock lock =
921	>	new ReentrantReadWriteLock(fair);
922	>	final Condition c = lock.writeLock().newCondition();
923	>	lock.writeLock().lock();
924	>	long startTime = System.nanoTime();
925	>	long timeoutMillis = 10;
926	>	long timeoutNanos = MILLISECONDS.toNanos(timeoutMillis);
927	>	long nanosRemaining = c.awaitNanos(timeoutNanos);
928	>	assertTrue(nanosRemaining <= 0);
929	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
930	>	lock.writeLock().unlock();
931	>	} catch (InterruptedException e) {
932	>	threadUnexpectedException(e);
933	>	}
934		}
935
936		/**
937		* timed await without a signal times out
938		*/
939	<	public void testAwait_Timeout() throws InterruptedException {
940	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
941	<	final Condition c = lock.writeLock().newCondition();
942	<	lock.writeLock().lock();
943	<	long startTime = System.nanoTime();
944	<	long timeoutMillis = 10;
945	<	assertFalse(c.await(timeoutMillis, MILLISECONDS));
946	<	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
947	<	lock.writeLock().unlock();
939	>	public void testAwait_Timeout()      { testAwait_Timeout(false); }
940	>	public void testAwait_Timeout_fair() { testAwait_Timeout(true); }
941	>	public void testAwait_Timeout(boolean fair) {
942	>	try {
943	>	final ReentrantReadWriteLock lock =
944	>	new ReentrantReadWriteLock(fair);
945	>	final Condition c = lock.writeLock().newCondition();
946	>	lock.writeLock().lock();
947	>	long startTime = System.nanoTime();
948	>	long timeoutMillis = 10;
949	>	assertFalse(c.await(timeoutMillis, MILLISECONDS));
950	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
951	>	lock.writeLock().unlock();
952	>	} catch (InterruptedException e) {
953	>	threadUnexpectedException(e);
954	>	}
955		}
956
957		/**
958		* awaitUntil without a signal times out
959		*/
960	<	public void testAwaitUntil_Timeout() throws InterruptedException {
961	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
962	<	final Condition c = lock.writeLock().newCondition();
963	<	lock.writeLock().lock();
964	<	long startTime = System.nanoTime();
965	<	long timeoutMillis = 10;
966	<	java.util.Date d = new java.util.Date();
967	<	assertFalse(c.awaitUntil(new java.util.Date(d.getTime() + timeoutMillis)));
968	<	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
969	<	lock.writeLock().unlock();
960	>	public void testAwaitUntil_Timeout()      { testAwaitUntil_Timeout(false); }
961	>	public void testAwaitUntil_Timeout_fair() { testAwaitUntil_Timeout(true); }
962	>	public void testAwaitUntil_Timeout(boolean fair) {
963	>	try {
964	>	final ReentrantReadWriteLock lock =
965	>	new ReentrantReadWriteLock(fair);
966	>	final Condition c = lock.writeLock().newCondition();
967	>	lock.writeLock().lock();
968	>	long startTime = System.nanoTime();
969	>	long timeoutMillis = 10;
970	>	java.util.Date d = new java.util.Date();
971	>	assertFalse(c.awaitUntil(new java.util.Date(d.getTime() + timeoutMillis)));
972	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
973	>	lock.writeLock().unlock();
974	>	} catch (InterruptedException e) {
975	>	threadUnexpectedException(e);
976	>	}
977		}
978
979		/**
980		* await returns when signalled
981		*/
982	<	public void testAwait() throws InterruptedException {
983	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
982	>	public void testAwait()      { testAwait(false); }
983	>	public void testAwait_fair() { testAwait(true); }
984	>	public void testAwait(boolean fair) {
985	>	final PublicReentrantReadWriteLock lock =
986	>	new PublicReentrantReadWriteLock(fair);
987		final Condition c = lock.writeLock().newCondition();
988		final CountDownLatch locked = new CountDownLatch(1);
989		Thread t = newStartedThread(new CheckedRunnable() {
#	Line 946 | Line 994 | public class ReentrantReadWriteLockTest
994		lock.writeLock().unlock();
995		}});
996
997	<	locked.await();
997	>	await(locked);
998		lock.writeLock().lock();
999		assertHasWaiters(lock, c, t);
1000		c.signal();
#	Line 959 | Line 1007 | public class ReentrantReadWriteLockTest
1007		/**
1008		* awaitUninterruptibly doesn't abort on interrupt
1009		*/
1010	<	public void testAwaitUninterruptibly() throws InterruptedException {
1011	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
1010	>	public void testAwaitUninterruptibly()      { testAwaitUninterruptibly(false); }
1011	>	public void testAwaitUninterruptibly_fair() { testAwaitUninterruptibly(true); }
1012	>	public void testAwaitUninterruptibly(boolean fair) {
1013	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair);
1014		final Condition c = lock.writeLock().newCondition();
1015		final CountDownLatch locked = new CountDownLatch(1);
1016		Thread t = newStartedThread(new CheckedRunnable() {
#	Line 972 | Line 1022 | public class ReentrantReadWriteLockTest
1022		lock.writeLock().unlock();
1023		}});
1024
1025	<	locked.await();
1025	>	await(locked);
1026		lock.writeLock().lock();
1027		lock.writeLock().unlock();
1028		t.interrupt();
1029		long timeoutMillis = 10;
1030	<	assertThreadJoinTimesOut(t, timeoutMillis);
1030	>	assertThreadStaysAlive(t, timeoutMillis);
1031		lock.writeLock().lock();
1032		c.signal();
1033		lock.writeLock().unlock();
#	Line 985 | Line 1035 | public class ReentrantReadWriteLockTest
1035		}
1036
1037		/**
1038	<	* 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
1038	>	* await/awaitNanos/awaitUntil is interruptible
1039		*/
1040	<	public void testAwaitNanos_Interrupt() throws InterruptedException {
1041	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
1040	>	public void testInterruptible_await()           { testInterruptible(false, AwaitMethod.await); }
1041	>	public void testInterruptible_await_fair()      { testInterruptible(true,  AwaitMethod.await); }
1042	>	public void testInterruptible_awaitTimed()      { testInterruptible(false, AwaitMethod.awaitTimed); }
1043	>	public void testInterruptible_awaitTimed_fair() { testInterruptible(true,  AwaitMethod.awaitTimed); }
1044	>	public void testInterruptible_awaitNanos()      { testInterruptible(false, AwaitMethod.awaitNanos); }
1045	>	public void testInterruptible_awaitNanos_fair() { testInterruptible(true,  AwaitMethod.awaitNanos); }
1046	>	public void testInterruptible_awaitUntil()      { testInterruptible(false, AwaitMethod.awaitUntil); }
1047	>	public void testInterruptible_awaitUntil_fair() { testInterruptible(true,  AwaitMethod.awaitUntil); }
1048	>	public void testInterruptible(boolean fair, final AwaitMethod awaitMethod) {
1049	>	final PublicReentrantReadWriteLock lock =
1050	>	new PublicReentrantReadWriteLock(fair);
1051		final Condition c = lock.writeLock().newCondition();
1052		final CountDownLatch locked = new CountDownLatch(1);
1053		Thread t = newStartedThread(new CheckedInterruptedRunnable() {
1054		public void realRun() throws InterruptedException {
1055		lock.writeLock().lock();
1056	<	assertWriteLockedBy(lock, Thread.currentThread());
1056	>	assertWriteLockedByMoi(lock);
1057		assertHasNoWaiters(lock, c);
1058		locked.countDown();
1059		try {
1060	<	c.awaitNanos(MILLISECONDS.toNanos(2 * LONG_DELAY_MS));
1060	>	await(c, awaitMethod);
1061		} finally {
1062	<	assertWriteLockedBy(lock, Thread.currentThread());
1062	>	assertWriteLockedByMoi(lock);
1063		assertHasNoWaiters(lock, c);
1064		lock.writeLock().unlock();
1065		assertFalse(Thread.interrupted());
1066		}
1067		}});
1068
1069	<	locked.await();
1041	<	assertHasWaiters(lock, c, t);
1042	<	t.interrupt();
1043	<	awaitTermination(t);
1044	<	assertNotWriteLocked(lock);
1045	<	}
1046	<
1047	<	/**
1048	<	* awaitUntil is interruptible
1049	<	*/
1050	<	public void testAwaitUntil_Interrupt() throws InterruptedException {
1051	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
1052	<	final Condition c = lock.writeLock().newCondition();
1053	<	final CountDownLatch locked = new CountDownLatch(1);
1054	<	Thread t = newStartedThread(new CheckedInterruptedRunnable() {
1055	<	public void realRun() throws InterruptedException {
1056	<	lock.writeLock().lock();
1057	<	assertWriteLockedBy(lock, Thread.currentThread());
1058	<	assertHasNoWaiters(lock, c);
1059	<	locked.countDown();
1060	<	java.util.Date d = new java.util.Date();
1061	<	try {
1062	<	c.awaitUntil(new java.util.Date(d.getTime() + 2 * LONG_DELAY_MS));
1063	<	} finally {
1064	<	assertWriteLockedBy(lock, Thread.currentThread());
1065	<	assertHasNoWaiters(lock, c);
1066	<	lock.writeLock().unlock();
1067	<	assertFalse(Thread.interrupted());
1068	<	}
1069	<	}});
1070	<
1071	<	locked.await();
1069	>	await(locked);
1070		assertHasWaiters(lock, c, t);
1071		t.interrupt();
1072		awaitTermination(t);
#	Line 1078 | Line 1076 | public class ReentrantReadWriteLockTest
1076		/**
1077		* signalAll wakes up all threads
1078		*/
1079	<	public void testSignalAll() throws InterruptedException {
1080	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
1079	>	public void testSignalAll_await()           { testSignalAll(false, AwaitMethod.await); }
1080	>	public void testSignalAll_await_fair()      { testSignalAll(true,  AwaitMethod.await); }
1081	>	public void testSignalAll_awaitTimed()      { testSignalAll(false, AwaitMethod.awaitTimed); }
1082	>	public void testSignalAll_awaitTimed_fair() { testSignalAll(true,  AwaitMethod.awaitTimed); }
1083	>	public void testSignalAll_awaitNanos()      { testSignalAll(false, AwaitMethod.awaitNanos); }
1084	>	public void testSignalAll_awaitNanos_fair() { testSignalAll(true,  AwaitMethod.awaitNanos); }
1085	>	public void testSignalAll_awaitUntil()      { testSignalAll(false, AwaitMethod.awaitUntil); }
1086	>	public void testSignalAll_awaitUntil_fair() { testSignalAll(true,  AwaitMethod.awaitUntil); }
1087	>	public void testSignalAll(boolean fair, final AwaitMethod awaitMethod) {
1088	>	final PublicReentrantReadWriteLock lock =
1089	>	new PublicReentrantReadWriteLock(fair);
1090		final Condition c = lock.writeLock().newCondition();
1091		final CountDownLatch locked = new CountDownLatch(2);
1092		final Lock writeLock = lock.writeLock();
1093	<	Thread t1 = newStartedThread(new CheckedRunnable() {
1093	>	class Awaiter extends CheckedRunnable {
1094		public void realRun() throws InterruptedException {
1095		writeLock.lock();
1096		locked.countDown();
1097	<	c.await();
1097	>	await(c, awaitMethod);
1098		writeLock.unlock();
1099	<	}});
1099	>	}
1100	>	}
1101
1102	<	Thread t2 = newStartedThread(new CheckedRunnable() {
1103	<	public void realRun() throws InterruptedException {
1096	<	writeLock.lock();
1097	<	locked.countDown();
1098	<	c.await();
1099	<	writeLock.unlock();
1100	<	}});
1102	>	Thread t1 = newStartedThread(new Awaiter());
1103	>	Thread t2 = newStartedThread(new Awaiter());
1104
1105	<	locked.await();
1105	>	await(locked);
1106		writeLock.lock();
1107		assertHasWaiters(lock, c, t1, t2);
1108		c.signalAll();
#	Line 1110 | Line 1113 | public class ReentrantReadWriteLockTest
1113		}
1114
1115		/**
1116	<	* signal wakes up waiting threads in FIFO order.
1116	>	* signal wakes up waiting threads in FIFO order
1117		*/
1118	<	public void testSignalWakesFifo() throws InterruptedException {
1119	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
1118	>	public void testSignalWakesFifo()      { testSignalWakesFifo(false); }
1119	>	public void testSignalWakesFifo_fair() { testSignalWakesFifo(true); }
1120	>	public void testSignalWakesFifo(boolean fair) {
1121	>	final PublicReentrantReadWriteLock lock =
1122	>	new PublicReentrantReadWriteLock(fair);
1123		final Condition c = lock.writeLock().newCondition();
1124		final CountDownLatch locked1 = new CountDownLatch(1);
1125		final CountDownLatch locked2 = new CountDownLatch(1);
#	Line 1126 | Line 1132 | public class ReentrantReadWriteLockTest
1132		writeLock.unlock();
1133		}});
1134
1135	<	locked1.await();
1135	>	await(locked1);
1136
1137		Thread t2 = newStartedThread(new CheckedRunnable() {
1138		public void realRun() throws InterruptedException {
#	Line 1136 | Line 1142 | public class ReentrantReadWriteLockTest
1142		writeLock.unlock();
1143		}});
1144
1145	<	locked2.await();
1145	>	await(locked2);
1146
1147		writeLock.lock();
1148		assertHasWaiters(lock, c, t1, t2);
#	Line 1157 | Line 1163 | public class ReentrantReadWriteLockTest
1163		/**
1164		* await after multiple reentrant locking preserves lock count
1165		*/
1166	<	public void testAwaitLockCount() throws InterruptedException {
1167	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
1166	>	public void testAwaitLockCount()      { testAwaitLockCount(false); }
1167	>	public void testAwaitLockCount_fair() { testAwaitLockCount(true); }
1168	>	public void testAwaitLockCount(boolean fair) {
1169	>	final PublicReentrantReadWriteLock lock =
1170	>	new PublicReentrantReadWriteLock(fair);
1171		final Condition c = lock.writeLock().newCondition();
1172		final CountDownLatch locked = new CountDownLatch(2);
1173		Thread t1 = newStartedThread(new CheckedRunnable() {
1174		public void realRun() throws InterruptedException {
1175		lock.writeLock().lock();
1176	<	assertWriteLockedBy(lock, Thread.currentThread());
1176	>	assertWriteLockedByMoi(lock);
1177		assertEquals(1, lock.writeLock().getHoldCount());
1178		locked.countDown();
1179		c.await();
1180	<	assertWriteLockedBy(lock, Thread.currentThread());
1180	>	assertWriteLockedByMoi(lock);
1181		assertEquals(1, lock.writeLock().getHoldCount());
1182		lock.writeLock().unlock();
1183		}});
#	Line 1177 | Line 1186 | public class ReentrantReadWriteLockTest
1186		public void realRun() throws InterruptedException {
1187		lock.writeLock().lock();
1188		lock.writeLock().lock();
1189	<	assertWriteLockedBy(lock, Thread.currentThread());
1189	>	assertWriteLockedByMoi(lock);
1190		assertEquals(2, lock.writeLock().getHoldCount());
1191		locked.countDown();
1192		c.await();
1193	<	assertWriteLockedBy(lock, Thread.currentThread());
1193	>	assertWriteLockedByMoi(lock);
1194		assertEquals(2, lock.writeLock().getHoldCount());
1195		lock.writeLock().unlock();
1196		lock.writeLock().unlock();
1197		}});
1198
1199	<	locked.await();
1199	>	await(locked);
1200		lock.writeLock().lock();
1201		assertHasWaiters(lock, c, t1, t2);
1202		c.signalAll();
#	Line 1200 | Line 1209 | public class ReentrantReadWriteLockTest
1209		/**
1210		* A serialized lock deserializes as unlocked
1211		*/
1212	<	public void testSerialization() throws Exception {
1213	<	ReentrantReadWriteLock l = new ReentrantReadWriteLock();
1214	<	l.readLock().lock();
1215	<	l.readLock().unlock();
1216	<
1217	<	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
1218	<	ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
1219	<	out.writeObject(l);
1220	<	out.close();
1221	<
1222	<	ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
1223	<	ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
1224	<	ReentrantReadWriteLock r = (ReentrantReadWriteLock) in.readObject();
1225	<	r.readLock().lock();
1226	<	r.readLock().unlock();
1212	>	public void testSerialization()      { testSerialization(false); }
1213	>	public void testSerialization_fair() { testSerialization(true); }
1214	>	public void testSerialization(boolean fair) {
1215	>	ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair);
1216	>	lock.writeLock().lock();
1217	>	lock.readLock().lock();
1218	>
1219	>	ReentrantReadWriteLock clone = serialClone(lock);
1220	>	assertEquals(lock.isFair(), clone.isFair());
1221	>	assertTrue(lock.isWriteLocked());
1222	>	assertFalse(clone.isWriteLocked());
1223	>	assertEquals(1, lock.getReadLockCount());
1224	>	assertEquals(0, clone.getReadLockCount());
1225	>	clone.writeLock().lock();
1226	>	clone.readLock().lock();
1227	>	assertTrue(clone.isWriteLocked());
1228	>	assertEquals(1, clone.getReadLockCount());
1229	>	clone.readLock().unlock();
1230	>	clone.writeLock().unlock();
1231	>	assertFalse(clone.isWriteLocked());
1232	>	assertEquals(1, lock.getReadLockCount());
1233	>	assertEquals(0, clone.getReadLockCount());
1234		}
1235
1236		/**
1237		* hasQueuedThreads reports whether there are waiting threads
1238		*/
1239	<	public void testHasQueuedThreads() throws InterruptedException {
1240	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
1239	>	public void testHasQueuedThreads()      { testHasQueuedThreads(false); }
1240	>	public void testHasQueuedThreads_fair() { testHasQueuedThreads(true); }
1241	>	public void testHasQueuedThreads(boolean fair) {
1242	>	final PublicReentrantReadWriteLock lock =
1243	>	new PublicReentrantReadWriteLock(fair);
1244		Thread t1 = new Thread(new InterruptedLockRunnable(lock));
1245		Thread t2 = new Thread(new InterruptibleLockRunnable(lock));
1246		assertFalse(lock.hasQueuedThreads());
#	Line 1244 | Line 1263 | public class ReentrantReadWriteLockTest
1263		/**
1264		* hasQueuedThread(null) throws NPE
1265		*/
1266	<	public void testHasQueuedThreadNPE() {
1267	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
1266	>	public void testHasQueuedThreadNPE()      { testHasQueuedThreadNPE(false); }
1267	>	public void testHasQueuedThreadNPE_fair() { testHasQueuedThreadNPE(true); }
1268	>	public void testHasQueuedThreadNPE(boolean fair) {
1269	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair);
1270		try {
1271		lock.hasQueuedThread(null);
1272		shouldThrow();
#	Line 1253 | Line 1274 | public class ReentrantReadWriteLockTest
1274		}
1275
1276		/**
1277	<	* hasQueuedThread reports whether a thread is queued.
1277	>	* hasQueuedThread reports whether a thread is queued
1278		*/
1279	<	public void testHasQueuedThread() throws InterruptedException {
1280	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
1279	>	public void testHasQueuedThread()      { testHasQueuedThread(false); }
1280	>	public void testHasQueuedThread_fair() { testHasQueuedThread(true); }
1281	>	public void testHasQueuedThread(boolean fair) {
1282	>	final PublicReentrantReadWriteLock lock =
1283	>	new PublicReentrantReadWriteLock(fair);
1284		Thread t1 = new Thread(new InterruptedLockRunnable(lock));
1285		Thread t2 = new Thread(new InterruptibleLockRunnable(lock));
1286		assertFalse(lock.hasQueuedThread(t1));
#	Line 1283 | Line 1307 | public class ReentrantReadWriteLockTest
1307		/**
1308		* getQueueLength reports number of waiting threads
1309		*/
1310	<	public void testGetQueueLength() throws InterruptedException {
1311	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
1310	>	public void testGetQueueLength()      { testGetQueueLength(false); }
1311	>	public void testGetQueueLength_fair() { testGetQueueLength(true); }
1312	>	public void testGetQueueLength(boolean fair) {
1313	>	final PublicReentrantReadWriteLock lock =
1314	>	new PublicReentrantReadWriteLock(fair);
1315		Thread t1 = new Thread(new InterruptedLockRunnable(lock));
1316		Thread t2 = new Thread(new InterruptibleLockRunnable(lock));
1317		assertEquals(0, lock.getQueueLength());
#	Line 1306 | Line 1333 | public class ReentrantReadWriteLockTest
1333		/**
1334		* getQueuedThreads includes waiting threads
1335		*/
1336	<	public void testGetQueuedThreads() throws InterruptedException {
1337	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
1336	>	public void testGetQueuedThreads()      { testGetQueuedThreads(false); }
1337	>	public void testGetQueuedThreads_fair() { testGetQueuedThreads(true); }
1338	>	public void testGetQueuedThreads(boolean fair) {
1339	>	final PublicReentrantReadWriteLock lock =
1340	>	new PublicReentrantReadWriteLock(fair);
1341		Thread t1 = new Thread(new InterruptedLockRunnable(lock));
1342		Thread t2 = new Thread(new InterruptibleLockRunnable(lock));
1343		assertTrue(lock.getQueuedThreads().isEmpty());
#	Line 1335 | Line 1365 | public class ReentrantReadWriteLockTest
1365		/**
1366		* hasWaiters throws NPE if null
1367		*/
1368	<	public void testHasWaitersNPE() {
1369	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
1368	>	public void testHasWaitersNPE()      { testHasWaitersNPE(false); }
1369	>	public void testHasWaitersNPE_fair() { testHasWaitersNPE(true); }
1370	>	public void testHasWaitersNPE(boolean fair) {
1371	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair);
1372		try {
1373		lock.hasWaiters(null);
1374		shouldThrow();
#	Line 1346 | Line 1378 | public class ReentrantReadWriteLockTest
1378		/**
1379		* getWaitQueueLength throws NPE if null
1380		*/
1381	<	public void testGetWaitQueueLengthNPE() {
1382	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
1381	>	public void testGetWaitQueueLengthNPE()      { testGetWaitQueueLengthNPE(false); }
1382	>	public void testGetWaitQueueLengthNPE_fair() { testGetWaitQueueLengthNPE(true); }
1383	>	public void testGetWaitQueueLengthNPE(boolean fair) {
1384	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair);
1385		try {
1386		lock.getWaitQueueLength(null);
1387		shouldThrow();
#	Line 1357 | Line 1391 | public class ReentrantReadWriteLockTest
1391		/**
1392		* getWaitingThreads throws NPE if null
1393		*/
1394	<	public void testGetWaitingThreadsNPE() {
1395	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
1394	>	public void testGetWaitingThreadsNPE()      { testGetWaitingThreadsNPE(false); }
1395	>	public void testGetWaitingThreadsNPE_fair() { testGetWaitingThreadsNPE(true); }
1396	>	public void testGetWaitingThreadsNPE(boolean fair) {
1397	>	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(fair);
1398		try {
1399		lock.getWaitingThreads(null);
1400		shouldThrow();
#	Line 1368 | Line 1404 | public class ReentrantReadWriteLockTest
1404		/**
1405		* hasWaiters throws IllegalArgumentException if not owned
1406		*/
1407	<	public void testHasWaitersIAE() {
1408	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
1407	>	public void testHasWaitersIAE()      { testHasWaitersIAE(false); }
1408	>	public void testHasWaitersIAE_fair() { testHasWaitersIAE(true); }
1409	>	public void testHasWaitersIAE(boolean fair) {
1410	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair);
1411		final Condition c = lock.writeLock().newCondition();
1412	<	final ReentrantReadWriteLock lock2 = new ReentrantReadWriteLock();
1412	>	final ReentrantReadWriteLock lock2 = new ReentrantReadWriteLock(fair);
1413		try {
1414		lock2.hasWaiters(c);
1415		shouldThrow();
#	Line 1381 | Line 1419 | public class ReentrantReadWriteLockTest
1419		/**
1420		* hasWaiters throws IllegalMonitorStateException if not locked
1421		*/
1422	<	public void testHasWaitersIMSE() {
1423	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
1422	>	public void testHasWaitersIMSE()      { testHasWaitersIMSE(false); }
1423	>	public void testHasWaitersIMSE_fair() { testHasWaitersIMSE(true); }
1424	>	public void testHasWaitersIMSE(boolean fair) {
1425	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair);
1426		final Condition c = lock.writeLock().newCondition();
1427		try {
1428		lock.hasWaiters(c);
#	Line 1393 | Line 1433 | public class ReentrantReadWriteLockTest
1433		/**
1434		* getWaitQueueLength throws IllegalArgumentException if not owned
1435		*/
1436	<	public void testGetWaitQueueLengthIAE() {
1437	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
1436	>	public void testGetWaitQueueLengthIAE()      { testGetWaitQueueLengthIAE(false); }
1437	>	public void testGetWaitQueueLengthIAE_fair() { testGetWaitQueueLengthIAE(true); }
1438	>	public void testGetWaitQueueLengthIAE(boolean fair) {
1439	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair);
1440		final Condition c = lock.writeLock().newCondition();
1441	<	final ReentrantReadWriteLock lock2 = new ReentrantReadWriteLock();
1441	>	final ReentrantReadWriteLock lock2 = new ReentrantReadWriteLock(fair);
1442		try {
1443		lock2.getWaitQueueLength(c);
1444		shouldThrow();
#	Line 1406 | Line 1448 | public class ReentrantReadWriteLockTest
1448		/**
1449		* getWaitQueueLength throws IllegalMonitorStateException if not locked
1450		*/
1451	<	public void testGetWaitQueueLengthIMSE() {
1452	<	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
1451	>	public void testGetWaitQueueLengthIMSE()      { testGetWaitQueueLengthIMSE(false); }
1452	>	public void testGetWaitQueueLengthIMSE_fair() { testGetWaitQueueLengthIMSE(true); }
1453	>	public void testGetWaitQueueLengthIMSE(boolean fair) {
1454	>	final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair);
1455		final Condition c = lock.writeLock().newCondition();
1456		try {
1457		lock.getWaitQueueLength(c);
#	Line 1418 | Line 1462 | public class ReentrantReadWriteLockTest
1462		/**
1463		* getWaitingThreads throws IllegalArgumentException if not owned
1464		*/
1465	<	public void testGetWaitingThreadsIAE() {
1466	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
1465	>	public void testGetWaitingThreadsIAE()      { testGetWaitingThreadsIAE(false); }
1466	>	public void testGetWaitingThreadsIAE_fair() { testGetWaitingThreadsIAE(true); }
1467	>	public void testGetWaitingThreadsIAE(boolean fair) {
1468	>	final PublicReentrantReadWriteLock lock =
1469	>	new PublicReentrantReadWriteLock(fair);
1470		final Condition c = lock.writeLock().newCondition();
1471	<	final PublicReentrantReadWriteLock lock2 = new PublicReentrantReadWriteLock();
1471	>	final PublicReentrantReadWriteLock lock2 =
1472	>	new PublicReentrantReadWriteLock(fair);
1473		try {
1474		lock2.getWaitingThreads(c);
1475		shouldThrow();
#	Line 1431 | Line 1479 | public class ReentrantReadWriteLockTest
1479		/**
1480		* getWaitingThreads throws IllegalMonitorStateException if not locked
1481		*/
1482	<	public void testGetWaitingThreadsIMSE() {
1483	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
1482	>	public void testGetWaitingThreadsIMSE()      { testGetWaitingThreadsIMSE(false); }
1483	>	public void testGetWaitingThreadsIMSE_fair() { testGetWaitingThreadsIMSE(true); }
1484	>	public void testGetWaitingThreadsIMSE(boolean fair) {
1485	>	final PublicReentrantReadWriteLock lock =
1486	>	new PublicReentrantReadWriteLock(fair);
1487		final Condition c = lock.writeLock().newCondition();
1488		try {
1489		lock.getWaitingThreads(c);
#	Line 1443 | Line 1494 | public class ReentrantReadWriteLockTest
1494		/**
1495		* hasWaiters returns true when a thread is waiting, else false
1496		*/
1497	<	public void testHasWaiters() throws InterruptedException {
1498	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
1497	>	public void testHasWaiters()      { testHasWaiters(false); }
1498	>	public void testHasWaiters_fair() { testHasWaiters(true); }
1499	>	public void testHasWaiters(boolean fair) {
1500	>	final PublicReentrantReadWriteLock lock =
1501	>	new PublicReentrantReadWriteLock(fair);
1502		final Condition c = lock.writeLock().newCondition();
1503		final CountDownLatch locked = new CountDownLatch(1);
1504		Thread t = newStartedThread(new CheckedRunnable() {
#	Line 1459 | Line 1513 | public class ReentrantReadWriteLockTest
1513		lock.writeLock().unlock();
1514		}});
1515
1516	<	locked.await();
1516	>	await(locked);
1517		lock.writeLock().lock();
1518		assertHasWaiters(lock, c, t);
1519		assertTrue(lock.hasWaiters(c));
#	Line 1474 | Line 1528 | public class ReentrantReadWriteLockTest
1528		/**
1529		* getWaitQueueLength returns number of waiting threads
1530		*/
1531	<	public void testGetWaitQueueLength() throws InterruptedException {
1532	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
1531	>	public void testGetWaitQueueLength()      { testGetWaitQueueLength(false); }
1532	>	public void testGetWaitQueueLength_fair() { testGetWaitQueueLength(true); }
1533	>	public void testGetWaitQueueLength(boolean fair) {
1534	>	final PublicReentrantReadWriteLock lock =
1535	>	new PublicReentrantReadWriteLock(fair);
1536		final Condition c = lock.writeLock().newCondition();
1537		final CountDownLatch locked = new CountDownLatch(1);
1538		Thread t = newStartedThread(new CheckedRunnable() {
#	Line 1487 | Line 1544 | public class ReentrantReadWriteLockTest
1544		lock.writeLock().unlock();
1545		}});
1546
1547	<	locked.await();
1547	>	await(locked);
1548		lock.writeLock().lock();
1549		assertHasWaiters(lock, c, t);
1550		assertEquals(1, lock.getWaitQueueLength(c));
#	Line 1501 | Line 1558 | public class ReentrantReadWriteLockTest
1558		/**
1559		* getWaitingThreads returns only and all waiting threads
1560		*/
1561	<	public void testGetWaitingThreads() throws InterruptedException {
1562	<	final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock();
1561	>	public void testGetWaitingThreads()      { testGetWaitingThreads(false); }
1562	>	public void testGetWaitingThreads_fair() { testGetWaitingThreads(true); }
1563	>	public void testGetWaitingThreads(boolean fair) {
1564	>	final PublicReentrantReadWriteLock lock =
1565	>	new PublicReentrantReadWriteLock(fair);
1566		final Condition c = lock.writeLock().newCondition();
1567		final CountDownLatch locked1 = new CountDownLatch(1);
1568		final CountDownLatch locked2 = new CountDownLatch(1);
#	Line 1529 | Line 1589 | public class ReentrantReadWriteLockTest
1589		lock.writeLock().unlock();
1590
1591		t1.start();
1592	<	locked1.await();
1592	>	await(locked1);
1593		t2.start();
1594	<	locked2.await();
1594	>	await(locked2);
1595
1596		lock.writeLock().lock();
1597		assertTrue(lock.hasWaiters(c));
#	Line 1551 | Line 1611 | public class ReentrantReadWriteLockTest
1611		/**
1612		* toString indicates current lock state
1613		*/
1614	<	public void testToString() {
1615	<	ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
1616	<	String us = lock.toString();
1617	<	assertTrue(us.indexOf("Write locks = 0") >= 0);
1618	<	assertTrue(us.indexOf("Read locks = 0") >= 0);
1619	<	lock.writeLock().lock();
1620	<	String ws = lock.toString();
1621	<	assertTrue(ws.indexOf("Write locks = 1") >= 0);
1622	<	assertTrue(ws.indexOf("Read locks = 0") >= 0);
1614	>	public void testToString()      { testToString(false); }
1615	>	public void testToString_fair() { testToString(true); }
1616	>	public void testToString(boolean fair) {
1617	>	ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair);
1618	>	assertTrue(lock.toString().contains("Write locks = 0"));
1619	>	assertTrue(lock.toString().contains("Read locks = 0"));
1620	>	lock.writeLock().lock();
1621	>	assertTrue(lock.toString().contains("Write locks = 1"));
1622	>	assertTrue(lock.toString().contains("Read locks = 0"));
1623		lock.writeLock().unlock();
1624		lock.readLock().lock();
1625		lock.readLock().lock();
1626	<	String rs = lock.toString();
1627	<	assertTrue(rs.indexOf("Write locks = 0") >= 0);
1568	<	assertTrue(rs.indexOf("Read locks = 2") >= 0);
1626	>	assertTrue(lock.toString().contains("Write locks = 0"));
1627	>	assertTrue(lock.toString().contains("Read locks = 2"));
1628		}
1629
1630		/**
1631		* readLock.toString indicates current lock state
1632		*/
1633	<	public void testReadLockToString() {
1634	<	ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
1635	<	String us = lock.readLock().toString();
1636	<	assertTrue(us.indexOf("Read locks = 0") >= 0);
1633	>	public void testReadLockToString()      { testReadLockToString(false); }
1634	>	public void testReadLockToString_fair() { testReadLockToString(true); }
1635	>	public void testReadLockToString(boolean fair) {
1636	>	ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair);
1637	>	assertTrue(lock.readLock().toString().contains("Read locks = 0"));
1638		lock.readLock().lock();
1639		lock.readLock().lock();
1640	<	String rs = lock.readLock().toString();
1581	<	assertTrue(rs.indexOf("Read locks = 2") >= 0);
1640	>	assertTrue(lock.readLock().toString().contains("Read locks = 2"));
1641		}
1642
1643		/**
1644		* writeLock.toString indicates current lock state
1645		*/
1646	<	public void testWriteLockToString() {
1647	<	ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
1648	<	String us = lock.writeLock().toString();
1649	<	assertTrue(us.indexOf("Unlocked") >= 0);
1646	>	public void testWriteLockToString()      { testWriteLockToString(false); }
1647	>	public void testWriteLockToString_fair() { testWriteLockToString(true); }
1648	>	public void testWriteLockToString(boolean fair) {
1649	>	ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair);
1650	>	assertTrue(lock.writeLock().toString().contains("Unlocked"));
1651		lock.writeLock().lock();
1652	<	String ls = lock.writeLock().toString();
1653	<	assertTrue(ls.indexOf("Locked") >= 0);
1652	>	assertTrue(lock.writeLock().toString().contains("Locked"));
1653	>	lock.writeLock().unlock();
1654	>	assertTrue(lock.writeLock().toString().contains("Unlocked"));
1655		}
1656
1657		}

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