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

Comparing jsr166/src/test/tck/AbstractQueuedSynchronizerTest.java (file contents):
Revision 1.16 by dl, Sun Jan 11 16:02:33 2004 UTC vs.
Revision 1.20 by dl, Fri Feb 24 00:03:16 2006 UTC

#	Line 44 | Line 44 | public class AbstractQueuedSynchronizerT
44		}
45
46		public AbstractQueuedSynchronizer.ConditionObject newCondition() { return new AbstractQueuedSynchronizer.ConditionObject(); }
47	–
48	–	public void lock() {
49	–	acquire(1);
50	–	}
47
48		}
49
#	Line 71 | Line 67 | public class AbstractQueuedSynchronizerT
67		/**
68		* A runnable calling acquireInterruptibly
69		*/
70	<	class InterruptibleLockRunnable implements Runnable {
71	<	final Mutex lock;
72	<	InterruptibleLockRunnable(Mutex l) { lock = l; }
70	>	class InterruptibleSyncRunnable implements Runnable {
71	>	final Mutex sync;
72	>	InterruptibleSyncRunnable(Mutex l) { sync = l; }
73		public void run() {
74		try {
75	<	lock.acquireInterruptibly(1);
75	>	sync.acquireInterruptibly(1);
76		} catch(InterruptedException success){}
77		}
78		}
#	Line 86 | Line 82 | public class AbstractQueuedSynchronizerT
82		* A runnable calling acquireInterruptibly that expects to be
83		* interrupted
84		*/
85	<	class InterruptedLockRunnable implements Runnable {
86	<	final Mutex lock;
87	<	InterruptedLockRunnable(Mutex l) { lock = l; }
85	>	class InterruptedSyncRunnable implements Runnable {
86	>	final Mutex sync;
87	>	InterruptedSyncRunnable(Mutex l) { sync = l; }
88		public void run() {
89		try {
90	<	lock.acquireInterruptibly(1);
90	>	sync.acquireInterruptibly(1);
91		threadShouldThrow();
92		} catch(InterruptedException success){}
93		}
#	Line 106 | Line 102 | public class AbstractQueuedSynchronizerT
102		}
103
104		/**
105	<	* acquiring released lock succeeds
105	>	* acquiring released sync succeeds
106		*/
107		public void testAcquire() {
108		Mutex rl = new Mutex();
109		rl.acquire(1);
110		assertTrue(rl.isHeldExclusively());
111		rl.release(1);
112	+	assertFalse(rl.isHeldExclusively());
113		}
114
115		/**
116	<	* tryAcquire on an released lock succeeds
116	>	* tryAcquire on an released sync succeeds
117		*/
118		public void testTryAcquire() {
119		Mutex rl = new Mutex();
#	Line 129 | Line 126 | public class AbstractQueuedSynchronizerT
126		* hasQueuedThreads reports whether there are waiting threads
127		*/
128		public void testhasQueuedThreads() {
129	<	final Mutex lock = new Mutex();
130	<	Thread t1 = new Thread(new InterruptedLockRunnable(lock));
131	<	Thread t2 = new Thread(new InterruptibleLockRunnable(lock));
129	>	final Mutex sync = new Mutex();
130	>	Thread t1 = new Thread(new InterruptedSyncRunnable(sync));
131	>	Thread t2 = new Thread(new InterruptibleSyncRunnable(sync));
132		try {
133	<	assertFalse(lock.hasQueuedThreads());
134	<	lock.acquire(1);
133	>	assertFalse(sync.hasQueuedThreads());
134	>	sync.acquire(1);
135		t1.start();
136		Thread.sleep(SHORT_DELAY_MS);
137	<	assertTrue(lock.hasQueuedThreads());
137	>	assertTrue(sync.hasQueuedThreads());
138		t2.start();
139		Thread.sleep(SHORT_DELAY_MS);
140	<	assertTrue(lock.hasQueuedThreads());
140	>	assertTrue(sync.hasQueuedThreads());
141		t1.interrupt();
142		Thread.sleep(SHORT_DELAY_MS);
143	<	assertTrue(lock.hasQueuedThreads());
144	<	lock.release(1);
143	>	assertTrue(sync.hasQueuedThreads());
144	>	sync.release(1);
145		Thread.sleep(SHORT_DELAY_MS);
146	<	assertFalse(lock.hasQueuedThreads());
146	>	assertFalse(sync.hasQueuedThreads());
147		t1.join();
148		t2.join();
149		} catch(Exception e){
#	Line 158 | Line 155 | public class AbstractQueuedSynchronizerT
155		* isQueued(null) throws NPE
156		*/
157		public void testIsQueuedNPE() {
158	<	final Mutex lock = new Mutex();
158	>	final Mutex sync = new Mutex();
159		try {
160	<	lock.isQueued(null);
160	>	sync.isQueued(null);
161		shouldThrow();
162		} catch (NullPointerException success) {
163		}
#	Line 170 | Line 167 | public class AbstractQueuedSynchronizerT
167		* isQueued reports whether a thread is queued.
168		*/
169		public void testIsQueued() {
170	<	final Mutex lock = new Mutex();
171	<	Thread t1 = new Thread(new InterruptedLockRunnable(lock));
172	<	Thread t2 = new Thread(new InterruptibleLockRunnable(lock));
173	<	try {
174	<	assertFalse(lock.isQueued(t1));
175	<	assertFalse(lock.isQueued(t2));
176	<	lock.acquire(1);
170	>	final Mutex sync = new Mutex();
171	>	Thread t1 = new Thread(new InterruptedSyncRunnable(sync));
172	>	Thread t2 = new Thread(new InterruptibleSyncRunnable(sync));
173	>	try {
174	>	assertFalse(sync.isQueued(t1));
175	>	assertFalse(sync.isQueued(t2));
176	>	sync.acquire(1);
177		t1.start();
178		Thread.sleep(SHORT_DELAY_MS);
179	<	assertTrue(lock.isQueued(t1));
179	>	assertTrue(sync.isQueued(t1));
180		t2.start();
181		Thread.sleep(SHORT_DELAY_MS);
182	<	assertTrue(lock.isQueued(t1));
183	<	assertTrue(lock.isQueued(t2));
182	>	assertTrue(sync.isQueued(t1));
183	>	assertTrue(sync.isQueued(t2));
184		t1.interrupt();
185		Thread.sleep(SHORT_DELAY_MS);
186	<	assertFalse(lock.isQueued(t1));
187	<	assertTrue(lock.isQueued(t2));
188	<	lock.release(1);
186	>	assertFalse(sync.isQueued(t1));
187	>	assertTrue(sync.isQueued(t2));
188	>	sync.release(1);
189	>	Thread.sleep(SHORT_DELAY_MS);
190	>	assertFalse(sync.isQueued(t1));
191		Thread.sleep(SHORT_DELAY_MS);
192	<	assertFalse(lock.isQueued(t1));
194	<	assertFalse(lock.isQueued(t2));
192	>	assertFalse(sync.isQueued(t2));
193		t1.join();
194		t2.join();
195		} catch(Exception e){
#	Line 200 | Line 198 | public class AbstractQueuedSynchronizerT
198		}
199
200		/**
201	<	* getFirstQueuedThread returns first waiting thread or null is none
201	>	* getFirstQueuedThread returns first waiting thread or null if none
202		*/
203		public void testGetFirstQueuedThread() {
204	<	final Mutex lock = new Mutex();
205	<	Thread t1 = new Thread(new InterruptedLockRunnable(lock));
206	<	Thread t2 = new Thread(new InterruptibleLockRunnable(lock));
204	>	final Mutex sync = new Mutex();
205	>	Thread t1 = new Thread(new InterruptedSyncRunnable(sync));
206	>	Thread t2 = new Thread(new InterruptibleSyncRunnable(sync));
207		try {
208	<	assertNull(lock.getFirstQueuedThread());
209	<	lock.acquire(1);
208	>	assertNull(sync.getFirstQueuedThread());
209	>	sync.acquire(1);
210		t1.start();
211		Thread.sleep(SHORT_DELAY_MS);
212	<	assertEquals(t1, lock.getFirstQueuedThread());
212	>	assertEquals(t1, sync.getFirstQueuedThread());
213		t2.start();
214		Thread.sleep(SHORT_DELAY_MS);
215	<	assertEquals(t1, lock.getFirstQueuedThread());
215	>	assertEquals(t1, sync.getFirstQueuedThread());
216		t1.interrupt();
217		Thread.sleep(SHORT_DELAY_MS);
220	–	assertEquals(t2, lock.getFirstQueuedThread());
221	–	lock.release(1);
218		Thread.sleep(SHORT_DELAY_MS);
219	<	assertNull(lock.getFirstQueuedThread());
219	>	assertEquals(t2, sync.getFirstQueuedThread());
220	>	sync.release(1);
221	>	Thread.sleep(SHORT_DELAY_MS);
222	>	assertNull(sync.getFirstQueuedThread());
223		t1.join();
224		t2.join();
225		} catch(Exception e){
#	Line 233 | Line 232 | public class AbstractQueuedSynchronizerT
232		* hasContended reports false if no thread has ever blocked, else true
233		*/
234		public void testHasContended() {
235	<	final Mutex lock = new Mutex();
236	<	Thread t1 = new Thread(new InterruptedLockRunnable(lock));
237	<	Thread t2 = new Thread(new InterruptibleLockRunnable(lock));
235	>	final Mutex sync = new Mutex();
236	>	Thread t1 = new Thread(new InterruptedSyncRunnable(sync));
237	>	Thread t2 = new Thread(new InterruptibleSyncRunnable(sync));
238		try {
239	<	assertFalse(lock.hasContended());
240	<	lock.acquire(1);
239	>	assertFalse(sync.hasContended());
240	>	sync.acquire(1);
241	>	t1.start();
242	>	Thread.sleep(SHORT_DELAY_MS);
243	>	assertTrue(sync.hasContended());
244	>	t2.start();
245	>	Thread.sleep(SHORT_DELAY_MS);
246	>	assertTrue(sync.hasContended());
247	>	t1.interrupt();
248	>	Thread.sleep(SHORT_DELAY_MS);
249	>	assertTrue(sync.hasContended());
250	>	sync.release(1);
251	>	Thread.sleep(SHORT_DELAY_MS);
252	>	assertTrue(sync.hasContended());
253	>	t1.join();
254	>	t2.join();
255	>	} catch(Exception e){
256	>	unexpectedException();
257	>	}
258	>	}
259	>
260	>	/**
261	>	* getQueuedThreads includes waiting threads
262	>	*/
263	>	public void testGetQueuedThreads() {
264	>	final Mutex sync = new Mutex();
265	>	Thread t1 = new Thread(new InterruptedSyncRunnable(sync));
266	>	Thread t2 = new Thread(new InterruptibleSyncRunnable(sync));
267	>	try {
268	>	assertTrue(sync.getQueuedThreads().isEmpty());
269	>	sync.acquire(1);
270	>	assertTrue(sync.getQueuedThreads().isEmpty());
271	>	t1.start();
272	>	Thread.sleep(SHORT_DELAY_MS);
273	>	assertTrue(sync.getQueuedThreads().contains(t1));
274	>	t2.start();
275	>	Thread.sleep(SHORT_DELAY_MS);
276	>	assertTrue(sync.getQueuedThreads().contains(t1));
277	>	assertTrue(sync.getQueuedThreads().contains(t2));
278	>	t1.interrupt();
279	>	Thread.sleep(SHORT_DELAY_MS);
280	>	assertFalse(sync.getQueuedThreads().contains(t1));
281	>	assertTrue(sync.getQueuedThreads().contains(t2));
282	>	sync.release(1);
283	>	Thread.sleep(SHORT_DELAY_MS);
284	>	assertTrue(sync.getQueuedThreads().isEmpty());
285	>	t1.join();
286	>	t2.join();
287	>	} catch(Exception e){
288	>	unexpectedException();
289	>	}
290	>	}
291	>
292	>	/**
293	>	* getExclusiveQueuedThreads includes waiting threads
294	>	*/
295	>	public void testGetExclusiveQueuedThreads() {
296	>	final Mutex sync = new Mutex();
297	>	Thread t1 = new Thread(new InterruptedSyncRunnable(sync));
298	>	Thread t2 = new Thread(new InterruptibleSyncRunnable(sync));
299	>	try {
300	>	assertTrue(sync.getExclusiveQueuedThreads().isEmpty());
301	>	sync.acquire(1);
302	>	assertTrue(sync.getExclusiveQueuedThreads().isEmpty());
303		t1.start();
304		Thread.sleep(SHORT_DELAY_MS);
305	<	assertTrue(lock.hasContended());
305	>	assertTrue(sync.getExclusiveQueuedThreads().contains(t1));
306		t2.start();
307		Thread.sleep(SHORT_DELAY_MS);
308	<	assertTrue(lock.hasContended());
308	>	assertTrue(sync.getExclusiveQueuedThreads().contains(t1));
309	>	assertTrue(sync.getExclusiveQueuedThreads().contains(t2));
310		t1.interrupt();
311		Thread.sleep(SHORT_DELAY_MS);
312	<	assertTrue(lock.hasContended());
313	<	lock.release(1);
312	>	assertFalse(sync.getExclusiveQueuedThreads().contains(t1));
313	>	assertTrue(sync.getExclusiveQueuedThreads().contains(t2));
314	>	sync.release(1);
315		Thread.sleep(SHORT_DELAY_MS);
316	<	assertTrue(lock.hasContended());
316	>	assertTrue(sync.getExclusiveQueuedThreads().isEmpty());
317	>	t1.join();
318	>	t2.join();
319	>	} catch(Exception e){
320	>	unexpectedException();
321	>	}
322	>	}
323	>
324	>	/**
325	>	* getSharedQueuedThreads does not include exclusively waiting threads
326	>	*/
327	>	public void testGetSharedQueuedThreads() {
328	>	final Mutex sync = new Mutex();
329	>	Thread t1 = new Thread(new InterruptedSyncRunnable(sync));
330	>	Thread t2 = new Thread(new InterruptibleSyncRunnable(sync));
331	>	try {
332	>	assertTrue(sync.getSharedQueuedThreads().isEmpty());
333	>	sync.acquire(1);
334	>	assertTrue(sync.getSharedQueuedThreads().isEmpty());
335	>	t1.start();
336	>	Thread.sleep(SHORT_DELAY_MS);
337	>	assertTrue(sync.getSharedQueuedThreads().isEmpty());
338	>	t2.start();
339	>	Thread.sleep(SHORT_DELAY_MS);
340	>	assertTrue(sync.getSharedQueuedThreads().isEmpty());
341	>	t1.interrupt();
342	>	Thread.sleep(SHORT_DELAY_MS);
343	>	assertTrue(sync.getSharedQueuedThreads().isEmpty());
344	>	sync.release(1);
345	>	Thread.sleep(SHORT_DELAY_MS);
346	>	assertTrue(sync.getSharedQueuedThreads().isEmpty());
347		t1.join();
348		t2.join();
349		} catch(Exception e){
#	Line 262 | Line 355 | public class AbstractQueuedSynchronizerT
355		* tryAcquireNanos is interruptible.
356		*/
357		public void testInterruptedException2() {
358	<	final Mutex lock = new Mutex();
359	<	lock.acquire(1);
358	>	final Mutex sync = new Mutex();
359	>	sync.acquire(1);
360		Thread t = new Thread(new Runnable() {
361		public void run() {
362		try {
363	<	lock.tryAcquireNanos(1, MEDIUM_DELAY_MS * 1000 * 1000);
363	>	sync.tryAcquireNanos(1, MEDIUM_DELAY_MS * 1000 * 1000);
364		threadShouldThrow();
365		} catch(InterruptedException success){}
366		}
#	Line 282 | Line 375 | public class AbstractQueuedSynchronizerT
375
376
377		/**
378	<	* TryAcquire on a locked lock fails
378	>	* TryAcquire on exclusively held sync fails
379		*/
380	<	public void testTryAcquireWhenLocked() {
381	<	final Mutex lock = new Mutex();
382	<	lock.acquire(1);
380	>	public void testTryAcquireWhenSynced() {
381	>	final Mutex sync = new Mutex();
382	>	sync.acquire(1);
383		Thread t = new Thread(new Runnable() {
384		public void run() {
385	<	threadAssertFalse(lock.tryAcquire(1));
385	>	threadAssertFalse(sync.tryAcquire(1));
386		}
387		});
388		try {
389		t.start();
390		t.join();
391	<	lock.release(1);
391	>	sync.release(1);
392		} catch(Exception e){
393		unexpectedException();
394		}
395		}
396
397		/**
398	<	* tryAcquireNanos on a locked lock times out
398	>	* tryAcquireNanos on an exclusively held sync times out
399		*/
400		public void testAcquireNanos_Timeout() {
401	<	final Mutex lock = new Mutex();
402	<	lock.acquire(1);
401	>	final Mutex sync = new Mutex();
402	>	sync.acquire(1);
403		Thread t = new Thread(new Runnable() {
404		public void run() {
405		try {
406	<	threadAssertFalse(lock.tryAcquireNanos(1, 1000 * 1000));
406	>	threadAssertFalse(sync.tryAcquireNanos(1, 1000 * 1000));
407		} catch (Exception ex) {
408		threadUnexpectedException();
409		}
#	Line 319 | Line 412 | public class AbstractQueuedSynchronizerT
412		try {
413		t.start();
414		t.join();
415	<	lock.release(1);
415	>	sync.release(1);
416		} catch(Exception e){
417		unexpectedException();
418		}
#	Line 330 | Line 423 | public class AbstractQueuedSynchronizerT
423		* getState is true when acquired and false when not
424		*/
425		public void testGetState() {
426	<	final Mutex lock = new Mutex();
427	<	lock.acquire(1);
428	<	assertTrue(lock.isHeldExclusively());
429	<	lock.release(1);
430	<	assertFalse(lock.isHeldExclusively());
426	>	final Mutex sync = new Mutex();
427	>	sync.acquire(1);
428	>	assertTrue(sync.isHeldExclusively());
429	>	sync.release(1);
430	>	assertFalse(sync.isHeldExclusively());
431		Thread t = new Thread(new Runnable() {
432		public void run() {
433	<	lock.acquire(1);
433	>	sync.acquire(1);
434		try {
435		Thread.sleep(SMALL_DELAY_MS);
436		}
437		catch(Exception e) {
438		threadUnexpectedException();
439		}
440	<	lock.release(1);
440	>	sync.release(1);
441		}
442		});
443		try {
444		t.start();
445		Thread.sleep(SHORT_DELAY_MS);
446	<	assertTrue(lock.isHeldExclusively());
446	>	assertTrue(sync.isHeldExclusively());
447		t.join();
448	<	assertFalse(lock.isHeldExclusively());
448	>	assertFalse(sync.isHeldExclusively());
449		} catch(Exception e){
450		unexpectedException();
451		}
#	Line 363 | Line 456 | public class AbstractQueuedSynchronizerT
456		* acquireInterruptibly is interruptible.
457		*/
458		public void testAcquireInterruptibly1() {
459	<	final Mutex lock = new Mutex();
460	<	lock.acquire(1);
461	<	Thread t = new Thread(new InterruptedLockRunnable(lock));
459	>	final Mutex sync = new Mutex();
460	>	sync.acquire(1);
461	>	Thread t = new Thread(new InterruptedSyncRunnable(sync));
462		try {
463		t.start();
464	+	Thread.sleep(SHORT_DELAY_MS);
465		t.interrupt();
466	<	lock.release(1);
466	>	sync.release(1);
467		t.join();
468		} catch(Exception e){
469		unexpectedException();
#	Line 380 | Line 474 | public class AbstractQueuedSynchronizerT
474		* acquireInterruptibly succeeds when released, else is interruptible
475		*/
476		public void testAcquireInterruptibly2() {
477	<	final Mutex lock = new Mutex();
477	>	final Mutex sync = new Mutex();
478		try {
479	<	lock.acquireInterruptibly(1);
479	>	sync.acquireInterruptibly(1);
480		} catch(Exception e) {
481		unexpectedException();
482		}
483	<	Thread t = new Thread(new InterruptedLockRunnable(lock));
483	>	Thread t = new Thread(new InterruptedSyncRunnable(sync));
484		try {
485		t.start();
486		t.interrupt();
487	<	assertTrue(lock.isHeldExclusively());
487	>	assertTrue(sync.isHeldExclusively());
488		t.join();
489		} catch(Exception e){
490		unexpectedException();
#	Line 398 | Line 492 | public class AbstractQueuedSynchronizerT
492		}
493
494		/**
495	<	* owns is true for a condition created by lock else false
495	>	* owns is true for a condition created by sync else false
496		*/
497		public void testOwns() {
498	<	final Mutex lock = new Mutex();
499	<	final AbstractQueuedSynchronizer.ConditionObject c = lock.newCondition();
500	<	final Mutex lock2 = new Mutex();
501	<	assertTrue(lock.owns(c));
502	<	assertFalse(lock2.owns(c));
498	>	final Mutex sync = new Mutex();
499	>	final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition();
500	>	final Mutex sync2 = new Mutex();
501	>	assertTrue(sync.owns(c));
502	>	assertFalse(sync2.owns(c));
503		}
504
505		/**
506	<	* Calling await without holding lock throws IllegalMonitorStateException
506	>	* Calling await without holding sync throws IllegalMonitorStateException
507		*/
508		public void testAwait_IllegalMonitor() {
509	<	final Mutex lock = new Mutex();
510	<	final AbstractQueuedSynchronizer.ConditionObject c = lock.newCondition();
509	>	final Mutex sync = new Mutex();
510	>	final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition();
511		try {
512		c.await();
513		shouldThrow();
#	Line 426 | Line 520 | public class AbstractQueuedSynchronizerT
520		}
521
522		/**
523	<	* Calling signal without holding lock throws IllegalMonitorStateException
523	>	* Calling signal without holding sync throws IllegalMonitorStateException
524		*/
525		public void testSignal_IllegalMonitor() {
526	<	final Mutex lock = new Mutex();
527	<	final AbstractQueuedSynchronizer.ConditionObject c = lock.newCondition();
526	>	final Mutex sync = new Mutex();
527	>	final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition();
528		try {
529		c.signal();
530		shouldThrow();
#	Line 446 | Line 540 | public class AbstractQueuedSynchronizerT
540		* awaitNanos without a signal times out
541		*/
542		public void testAwaitNanos_Timeout() {
543	<	final Mutex lock = new Mutex();
544	<	final AbstractQueuedSynchronizer.ConditionObject c = lock.newCondition();
543	>	final Mutex sync = new Mutex();
544	>	final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition();
545		try {
546	<	lock.acquire(1);
546	>	sync.acquire(1);
547		long t = c.awaitNanos(100);
548		assertTrue(t <= 0);
549	<	lock.release(1);
549	>	sync.release(1);
550		}
551		catch (Exception ex) {
552		unexpectedException();
#	Line 460 | Line 554 | public class AbstractQueuedSynchronizerT
554		}
555
556		/**
557	<	*  timed await without a signal times out
557	>	*  Timed await without a signal times out
558		*/
559		public void testAwait_Timeout() {
560	<	final Mutex lock = new Mutex();
561	<	final AbstractQueuedSynchronizer.ConditionObject c = lock.newCondition();
560	>	final Mutex sync = new Mutex();
561	>	final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition();
562		try {
563	<	lock.acquire(1);
563	>	sync.acquire(1);
564		assertFalse(c.await(SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
565	<	lock.release(1);
565	>	sync.release(1);
566		}
567		catch (Exception ex) {
568		unexpectedException();
#	Line 479 | Line 573 | public class AbstractQueuedSynchronizerT
573		* awaitUntil without a signal times out
574		*/
575		public void testAwaitUntil_Timeout() {
576	<	final Mutex lock = new Mutex();
577	<	final AbstractQueuedSynchronizer.ConditionObject c = lock.newCondition();
576	>	final Mutex sync = new Mutex();
577	>	final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition();
578		try {
579	<	lock.acquire(1);
579	>	sync.acquire(1);
580		java.util.Date d = new java.util.Date();
581		assertFalse(c.awaitUntil(new java.util.Date(d.getTime() + 10)));
582	<	lock.release(1);
582	>	sync.release(1);
583		}
584		catch (Exception ex) {
585		unexpectedException();
#	Line 496 | Line 590 | public class AbstractQueuedSynchronizerT
590		* await returns when signalled
591		*/
592		public void testAwait() {
593	<	final Mutex lock = new Mutex();
594	<	final AbstractQueuedSynchronizer.ConditionObject c = lock.newCondition();
593	>	final Mutex sync = new Mutex();
594	>	final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition();
595		Thread t = new Thread(new Runnable() {
596		public void run() {
597		try {
598	<	lock.acquire(1);
598	>	sync.acquire(1);
599		c.await();
600	<	lock.release(1);
600	>	sync.release(1);
601		}
602		catch(InterruptedException e) {
603		threadUnexpectedException();
#	Line 514 | Line 608 | public class AbstractQueuedSynchronizerT
608		try {
609		t.start();
610		Thread.sleep(SHORT_DELAY_MS);
611	<	lock.acquire(1);
611	>	sync.acquire(1);
612		c.signal();
613	<	lock.release(1);
613	>	sync.release(1);
614		t.join(SHORT_DELAY_MS);
615		assertFalse(t.isAlive());
616		}
#	Line 531 | Line 625 | public class AbstractQueuedSynchronizerT
625		* hasWaiters throws NPE if null
626		*/
627		public void testHasWaitersNPE() {
628	<	final Mutex lock = new Mutex();
628	>	final Mutex sync = new Mutex();
629		try {
630	<	lock.hasWaiters(null);
630	>	sync.hasWaiters(null);
631		shouldThrow();
632		} catch (NullPointerException success) {
633		} catch (Exception ex) {
#	Line 545 | Line 639 | public class AbstractQueuedSynchronizerT
639		* getWaitQueueLength throws NPE if null
640		*/
641		public void testGetWaitQueueLengthNPE() {
642	<	final Mutex lock = new Mutex();
642	>	final Mutex sync = new Mutex();
643		try {
644	<	lock.getWaitQueueLength(null);
644	>	sync.getWaitQueueLength(null);
645		shouldThrow();
646		} catch (NullPointerException success) {
647		} catch (Exception ex) {
#	Line 560 | Line 654 | public class AbstractQueuedSynchronizerT
654		* getWaitingThreads throws NPE if null
655		*/
656		public void testGetWaitingThreadsNPE() {
657	<	final Mutex lock = new Mutex();
657	>	final Mutex sync = new Mutex();
658		try {
659	<	lock.getWaitingThreads(null);
659	>	sync.getWaitingThreads(null);
660		shouldThrow();
661		} catch (NullPointerException success) {
662		} catch (Exception ex) {
#	Line 575 | Line 669 | public class AbstractQueuedSynchronizerT
669		* hasWaiters throws IAE if not owned
670		*/
671		public void testHasWaitersIAE() {
672	<	final Mutex lock = new Mutex();
673	<	final AbstractQueuedSynchronizer.ConditionObject c = (lock.newCondition());
674	<	final Mutex lock2 = new Mutex();
672	>	final Mutex sync = new Mutex();
673	>	final AbstractQueuedSynchronizer.ConditionObject c = (sync.newCondition());
674	>	final Mutex sync2 = new Mutex();
675		try {
676	<	lock2.hasWaiters(c);
676	>	sync2.hasWaiters(c);
677		shouldThrow();
678		} catch (IllegalArgumentException success) {
679		} catch (Exception ex) {
#	Line 588 | Line 682 | public class AbstractQueuedSynchronizerT
682		}
683
684		/**
685	<	* hasWaiters throws IMSE if not locked
685	>	* hasWaiters throws IMSE if not synced
686		*/
687		public void testHasWaitersIMSE() {
688	<	final Mutex lock = new Mutex();
689	<	final AbstractQueuedSynchronizer.ConditionObject c = (lock.newCondition());
688	>	final Mutex sync = new Mutex();
689	>	final AbstractQueuedSynchronizer.ConditionObject c = (sync.newCondition());
690		try {
691	<	lock.hasWaiters(c);
691	>	sync.hasWaiters(c);
692		shouldThrow();
693		} catch (IllegalMonitorStateException success) {
694		} catch (Exception ex) {
#	Line 607 | Line 701 | public class AbstractQueuedSynchronizerT
701		* getWaitQueueLength throws IAE if not owned
702		*/
703		public void testGetWaitQueueLengthIAE() {
704	<	final Mutex lock = new Mutex();
705	<	final AbstractQueuedSynchronizer.ConditionObject c = (lock.newCondition());
706	<	final Mutex lock2 = new Mutex();
704	>	final Mutex sync = new Mutex();
705	>	final AbstractQueuedSynchronizer.ConditionObject c = (sync.newCondition());
706	>	final Mutex sync2 = new Mutex();
707		try {
708	<	lock2.getWaitQueueLength(c);
708	>	sync2.getWaitQueueLength(c);
709		shouldThrow();
710		} catch (IllegalArgumentException success) {
711		} catch (Exception ex) {
#	Line 620 | Line 714 | public class AbstractQueuedSynchronizerT
714		}
715
716		/**
717	<	* getWaitQueueLength throws IMSE if not locked
717	>	* getWaitQueueLength throws IMSE if not synced
718		*/
719		public void testGetWaitQueueLengthIMSE() {
720	<	final Mutex lock = new Mutex();
721	<	final AbstractQueuedSynchronizer.ConditionObject c = (lock.newCondition());
720	>	final Mutex sync = new Mutex();
721	>	final AbstractQueuedSynchronizer.ConditionObject c = (sync.newCondition());
722		try {
723	<	lock.getWaitQueueLength(c);
723	>	sync.getWaitQueueLength(c);
724		shouldThrow();
725		} catch (IllegalMonitorStateException success) {
726		} catch (Exception ex) {
#	Line 639 | Line 733 | public class AbstractQueuedSynchronizerT
733		* getWaitingThreads throws IAE if not owned
734		*/
735		public void testGetWaitingThreadsIAE() {
736	<	final Mutex lock = new Mutex();
737	<	final AbstractQueuedSynchronizer.ConditionObject c = (lock.newCondition());
738	<	final Mutex lock2 = new Mutex();
736	>	final Mutex sync = new Mutex();
737	>	final AbstractQueuedSynchronizer.ConditionObject c = (sync.newCondition());
738	>	final Mutex sync2 = new Mutex();
739		try {
740	<	lock2.getWaitingThreads(c);
740	>	sync2.getWaitingThreads(c);
741		shouldThrow();
742		} catch (IllegalArgumentException success) {
743		} catch (Exception ex) {
#	Line 652 | Line 746 | public class AbstractQueuedSynchronizerT
746		}
747
748		/**
749	<	* getWaitingThreads throws IMSE if not locked
749	>	* getWaitingThreads throws IMSE if not synced
750		*/
751		public void testGetWaitingThreadsIMSE() {
752	<	final Mutex lock = new Mutex();
753	<	final AbstractQueuedSynchronizer.ConditionObject c = (lock.newCondition());
752	>	final Mutex sync = new Mutex();
753	>	final AbstractQueuedSynchronizer.ConditionObject c = (sync.newCondition());
754		try {
755	<	lock.getWaitingThreads(c);
755	>	sync.getWaitingThreads(c);
756		shouldThrow();
757		} catch (IllegalMonitorStateException success) {
758		} catch (Exception ex) {
#	Line 672 | Line 766 | public class AbstractQueuedSynchronizerT
766		* hasWaiters returns true when a thread is waiting, else false
767		*/
768		public void testHasWaiters() {
769	<	final Mutex lock = new Mutex();
770	<	final AbstractQueuedSynchronizer.ConditionObject c = lock.newCondition();
769	>	final Mutex sync = new Mutex();
770	>	final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition();
771		Thread t = new Thread(new Runnable() {
772		public void run() {
773		try {
774	<	lock.acquire(1);
775	<	threadAssertFalse(lock.hasWaiters(c));
776	<	threadAssertEquals(0, lock.getWaitQueueLength(c));
774	>	sync.acquire(1);
775	>	threadAssertFalse(sync.hasWaiters(c));
776	>	threadAssertEquals(0, sync.getWaitQueueLength(c));
777		c.await();
778	<	lock.release(1);
778	>	sync.release(1);
779		}
780		catch(InterruptedException e) {
781		threadUnexpectedException();
#	Line 692 | Line 786 | public class AbstractQueuedSynchronizerT
786		try {
787		t.start();
788		Thread.sleep(SHORT_DELAY_MS);
789	<	lock.acquire(1);
790	<	assertTrue(lock.hasWaiters(c));
791	<	assertEquals(1, lock.getWaitQueueLength(c));
789	>	sync.acquire(1);
790	>	assertTrue(sync.hasWaiters(c));
791	>	assertEquals(1, sync.getWaitQueueLength(c));
792		c.signal();
793	<	lock.release(1);
793	>	sync.release(1);
794		Thread.sleep(SHORT_DELAY_MS);
795	<	lock.acquire(1);
796	<	assertFalse(lock.hasWaiters(c));
797	<	assertEquals(0, lock.getWaitQueueLength(c));
798	<	lock.release(1);
795	>	sync.acquire(1);
796	>	assertFalse(sync.hasWaiters(c));
797	>	assertEquals(0, sync.getWaitQueueLength(c));
798	>	sync.release(1);
799		t.join(SHORT_DELAY_MS);
800		assertFalse(t.isAlive());
801		}
#	Line 714 | Line 808 | public class AbstractQueuedSynchronizerT
808		* getWaitQueueLength returns number of waiting threads
809		*/
810		public void testGetWaitQueueLength() {
811	<	final Mutex lock = new Mutex();
812	<	final AbstractQueuedSynchronizer.ConditionObject c = lock.newCondition();
811	>	final Mutex sync = new Mutex();
812	>	final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition();
813		Thread t1 = new Thread(new Runnable() {
814		public void run() {
815		try {
816	<	lock.acquire(1);
817	<	threadAssertFalse(lock.hasWaiters(c));
818	<	threadAssertEquals(0, lock.getWaitQueueLength(c));
816	>	sync.acquire(1);
817	>	threadAssertFalse(sync.hasWaiters(c));
818	>	threadAssertEquals(0, sync.getWaitQueueLength(c));
819		c.await();
820	<	lock.release(1);
820	>	sync.release(1);
821		}
822		catch(InterruptedException e) {
823		threadUnexpectedException();
#	Line 734 | Line 828 | public class AbstractQueuedSynchronizerT
828		Thread t2 = new Thread(new Runnable() {
829		public void run() {
830		try {
831	<	lock.acquire(1);
832	<	threadAssertTrue(lock.hasWaiters(c));
833	<	threadAssertEquals(1, lock.getWaitQueueLength(c));
831	>	sync.acquire(1);
832	>	threadAssertTrue(sync.hasWaiters(c));
833	>	threadAssertEquals(1, sync.getWaitQueueLength(c));
834		c.await();
835	<	lock.release(1);
835	>	sync.release(1);
836		}
837		catch(InterruptedException e) {
838		threadUnexpectedException();
#	Line 751 | Line 845 | public class AbstractQueuedSynchronizerT
845		Thread.sleep(SHORT_DELAY_MS);
846		t2.start();
847		Thread.sleep(SHORT_DELAY_MS);
848	<	lock.acquire(1);
849	<	assertTrue(lock.hasWaiters(c));
850	<	assertEquals(2, lock.getWaitQueueLength(c));
848	>	sync.acquire(1);
849	>	assertTrue(sync.hasWaiters(c));
850	>	assertEquals(2, sync.getWaitQueueLength(c));
851		c.signalAll();
852	<	lock.release(1);
852	>	sync.release(1);
853		Thread.sleep(SHORT_DELAY_MS);
854	<	lock.acquire(1);
855	<	assertFalse(lock.hasWaiters(c));
856	<	assertEquals(0, lock.getWaitQueueLength(c));
857	<	lock.release(1);
854	>	sync.acquire(1);
855	>	assertFalse(sync.hasWaiters(c));
856	>	assertEquals(0, sync.getWaitQueueLength(c));
857	>	sync.release(1);
858		t1.join(SHORT_DELAY_MS);
859		t2.join(SHORT_DELAY_MS);
860		assertFalse(t1.isAlive());
#	Line 775 | Line 869 | public class AbstractQueuedSynchronizerT
869		* getWaitingThreads returns only and all waiting threads
870		*/
871		public void testGetWaitingThreads() {
872	<	final Mutex lock = new Mutex();
873	<	final AbstractQueuedSynchronizer.ConditionObject c = lock.newCondition();
872	>	final Mutex sync = new Mutex();
873	>	final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition();
874		Thread t1 = new Thread(new Runnable() {
875		public void run() {
876		try {
877	<	lock.acquire(1);
878	<	threadAssertTrue(lock.getWaitingThreads(c).isEmpty());
877	>	sync.acquire(1);
878	>	threadAssertTrue(sync.getWaitingThreads(c).isEmpty());
879		c.await();
880	<	lock.release(1);
880	>	sync.release(1);
881		}
882		catch(InterruptedException e) {
883		threadUnexpectedException();
#	Line 794 | Line 888 | public class AbstractQueuedSynchronizerT
888		Thread t2 = new Thread(new Runnable() {
889		public void run() {
890		try {
891	<	lock.acquire(1);
892	<	threadAssertFalse(lock.getWaitingThreads(c).isEmpty());
891	>	sync.acquire(1);
892	>	threadAssertFalse(sync.getWaitingThreads(c).isEmpty());
893		c.await();
894	<	lock.release(1);
894	>	sync.release(1);
895		}
896		catch(InterruptedException e) {
897		threadUnexpectedException();
#	Line 806 | Line 900 | public class AbstractQueuedSynchronizerT
900		});
901
902		try {
903	<	lock.acquire(1);
904	<	assertTrue(lock.getWaitingThreads(c).isEmpty());
905	<	lock.release(1);
903	>	sync.acquire(1);
904	>	assertTrue(sync.getWaitingThreads(c).isEmpty());
905	>	sync.release(1);
906		t1.start();
907		Thread.sleep(SHORT_DELAY_MS);
908		t2.start();
909		Thread.sleep(SHORT_DELAY_MS);
910	<	lock.acquire(1);
911	<	assertTrue(lock.hasWaiters(c));
912	<	assertTrue(lock.getWaitingThreads(c).contains(t1));
913	<	assertTrue(lock.getWaitingThreads(c).contains(t2));
910	>	sync.acquire(1);
911	>	assertTrue(sync.hasWaiters(c));
912	>	assertTrue(sync.getWaitingThreads(c).contains(t1));
913	>	assertTrue(sync.getWaitingThreads(c).contains(t2));
914		c.signalAll();
915	<	lock.release(1);
915	>	sync.release(1);
916		Thread.sleep(SHORT_DELAY_MS);
917	<	lock.acquire(1);
918	<	assertFalse(lock.hasWaiters(c));
919	<	assertTrue(lock.getWaitingThreads(c).isEmpty());
920	<	lock.release(1);
917	>	sync.acquire(1);
918	>	assertFalse(sync.hasWaiters(c));
919	>	assertTrue(sync.getWaitingThreads(c).isEmpty());
920	>	sync.release(1);
921		t1.join(SHORT_DELAY_MS);
922		t2.join(SHORT_DELAY_MS);
923		assertFalse(t1.isAlive());
#	Line 840 | Line 934 | public class AbstractQueuedSynchronizerT
934		* awaitUninterruptibly doesn't abort on interrupt
935		*/
936		public void testAwaitUninterruptibly() {
937	<	final Mutex lock = new Mutex();
938	<	final AbstractQueuedSynchronizer.ConditionObject c = lock.newCondition();
937	>	final Mutex sync = new Mutex();
938	>	final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition();
939		Thread t = new Thread(new Runnable() {
940		public void run() {
941	<	lock.acquire(1);
941	>	sync.acquire(1);
942		c.awaitUninterruptibly();
943	<	lock.release(1);
943	>	sync.release(1);
944		}
945		});
946
#	Line 854 | Line 948 | public class AbstractQueuedSynchronizerT
948		t.start();
949		Thread.sleep(SHORT_DELAY_MS);
950		t.interrupt();
951	<	lock.acquire(1);
951	>	sync.acquire(1);
952		c.signal();
953	<	lock.release(1);
860	<	assert(t.isInterrupted());
953	>	sync.release(1);
954		t.join(SHORT_DELAY_MS);
955		assertFalse(t.isAlive());
956		}
#	Line 870 | Line 963 | public class AbstractQueuedSynchronizerT
963		* await is interruptible
964		*/
965		public void testAwait_Interrupt() {
966	<	final Mutex lock = new Mutex();
967	<	final AbstractQueuedSynchronizer.ConditionObject c = lock.newCondition();
966	>	final Mutex sync = new Mutex();
967	>	final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition();
968		Thread t = new Thread(new Runnable() {
969		public void run() {
970		try {
971	<	lock.acquire(1);
971	>	sync.acquire(1);
972		c.await();
973	<	lock.release(1);
973	>	sync.release(1);
974		threadShouldThrow();
975		}
976		catch(InterruptedException success) {
#	Line 901 | Line 994 | public class AbstractQueuedSynchronizerT
994		* awaitNanos is interruptible
995		*/
996		public void testAwaitNanos_Interrupt() {
997	<	final Mutex lock = new Mutex();
998	<	final AbstractQueuedSynchronizer.ConditionObject c = lock.newCondition();
997	>	final Mutex sync = new Mutex();
998	>	final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition();
999		Thread t = new Thread(new Runnable() {
1000		public void run() {
1001		try {
1002	<	lock.acquire(1);
1002	>	sync.acquire(1);
1003		c.awaitNanos(1000 * 1000 * 1000); // 1 sec
1004	<	lock.release(1);
1004	>	sync.release(1);
1005		threadShouldThrow();
1006		}
1007		catch(InterruptedException success) {
#	Line 932 | Line 1025 | public class AbstractQueuedSynchronizerT
1025		* awaitUntil is interruptible
1026		*/
1027		public void testAwaitUntil_Interrupt() {
1028	<	final Mutex lock = new Mutex();
1029	<	final AbstractQueuedSynchronizer.ConditionObject c = lock.newCondition();
1028	>	final Mutex sync = new Mutex();
1029	>	final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition();
1030		Thread t = new Thread(new Runnable() {
1031		public void run() {
1032		try {
1033	<	lock.acquire(1);
1033	>	sync.acquire(1);
1034		java.util.Date d = new java.util.Date();
1035		c.awaitUntil(new java.util.Date(d.getTime() + 10000));
1036	<	lock.release(1);
1036	>	sync.release(1);
1037		threadShouldThrow();
1038		}
1039		catch(InterruptedException success) {
#	Line 964 | Line 1057 | public class AbstractQueuedSynchronizerT
1057		* signalAll wakes up all threads
1058		*/
1059		public void testSignalAll() {
1060	<	final Mutex lock = new Mutex();
1061	<	final AbstractQueuedSynchronizer.ConditionObject c = lock.newCondition();
1060	>	final Mutex sync = new Mutex();
1061	>	final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition();
1062		Thread t1 = new Thread(new Runnable() {
1063		public void run() {
1064		try {
1065	<	lock.acquire(1);
1065	>	sync.acquire(1);
1066		c.await();
1067	<	lock.release(1);
1067	>	sync.release(1);
1068		}
1069		catch(InterruptedException e) {
1070		threadUnexpectedException();
#	Line 982 | Line 1075 | public class AbstractQueuedSynchronizerT
1075		Thread t2 = new Thread(new Runnable() {
1076		public void run() {
1077		try {
1078	<	lock.acquire(1);
1078	>	sync.acquire(1);
1079		c.await();
1080	<	lock.release(1);
1080	>	sync.release(1);
1081		}
1082		catch(InterruptedException e) {
1083		threadUnexpectedException();
#	Line 996 | Line 1089 | public class AbstractQueuedSynchronizerT
1089		t1.start();
1090		t2.start();
1091		Thread.sleep(SHORT_DELAY_MS);
1092	<	lock.acquire(1);
1092	>	sync.acquire(1);
1093		c.signalAll();
1094	<	lock.release(1);
1094	>	sync.release(1);
1095		t1.join(SHORT_DELAY_MS);
1096		t2.join(SHORT_DELAY_MS);
1097		assertFalse(t1.isAlive());
#	Line 1014 | Line 1107 | public class AbstractQueuedSynchronizerT
1107		* toString indicates current state
1108		*/
1109		public void testToString() {
1110	<	Mutex lock = new Mutex();
1111	<	String us = lock.toString();
1110	>	Mutex sync = new Mutex();
1111	>	String us = sync.toString();
1112		assertTrue(us.indexOf("State = 0") >= 0);
1113	<	lock.acquire(1);
1114	<	String ls = lock.toString();
1113	>	sync.acquire(1);
1114	>	String ls = sync.toString();
1115		assertTrue(ls.indexOf("State = 1") >= 0);
1116		}
1117
#	Line 1058 | Line 1151 | public class AbstractQueuedSynchronizerT
1151		}
1152
1153		/**
1154	<	* release and has no effect when already signalled
1154	>	* releaseShared has no effect when already signalled
1155		*/
1156		public void testReleaseShared() {
1157		final BooleanLatch l = new BooleanLatch();

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