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

Comparing jsr166/src/test/tck/AbstractQueuedSynchronizerTest.java (file contents):
Revision 1.4 by dl, Mon Dec 29 19:05:40 2003 UTC vs.
Revision 1.21 by dl, Thu May 18 10:29:23 2006 UTC

#	Line 22 | Line 22 | public class AbstractQueuedSynchronizerT
22		}
23
24		/**
25	<	* A simple mutex class, from the AbstractQueuedSynchronizer
26	<	* javadoc.  All tests exercise this as a sample user extension.
27	<	* Other methods/features of AbstractQueuedSynchronizerTest are
28	<	* tested implicitly in ReentrantLock, ReentrantReadWriteLock, and
29	<	* Semaphore test classes
30	<	*/
31	<	static class Mutex implements Lock, java.io.Serializable {
32	<	private static class Sync extends AbstractQueuedSynchronizer {
33	<	public int acquireExclusiveState(boolean isQueued, int acquires) {
34	<	assert acquires == 1; // Does not use multiple acquires
35	<	return state().compareAndSet(0, 1)? 0 : -1;
36	<	}
37	<
38	<	public boolean releaseExclusiveState(int releases) {
39	<	state().set(0);
40	<	return true;
41	<	}
42	<
43	<	public int acquireSharedState(boolean isQueued, int acquires) {
44	<	throw new UnsupportedOperationException();
45	<	}
46	<
47	<	public boolean releaseSharedState(int releases) {
48	<	throw new UnsupportedOperationException();
49	<	}
50	<
51	<	public void checkConditionAccess(Thread thread, boolean waiting) {
52	<	if (state().get() == 0) throw new IllegalMonitorStateException();
53	<	}
54	<
55	<	Condition newCondition() { return new ConditionObject(); }
56	<
57	<	private void readObject(ObjectInputStream s) throws IOException, ClassNotFoundException {
58	<	s.defaultReadObject();
59	<	state().set(0); // reset to unlocked state
60	<	}
61	<	}
25	>	* A simple mutex class, adapted from the
26	>	* AbstractQueuedSynchronizer javadoc.  Exclusive acquire tests
27	>	* exercise this as a sample user extension.  Other
28	>	* methods/features of AbstractQueuedSynchronizerTest are tested
29	>	* via other test classes, including those for ReentrantLock,
30	>	* ReentrantReadWriteLock, and Semaphore
31	>	*/
32	>	static class Mutex extends AbstractQueuedSynchronizer {
33	>	public boolean isHeldExclusively() { return getState() == 1; }
34
35	<	private final Sync sync = new Sync();
36	<	public boolean tryLock() {
37	<	return sync.acquireExclusiveState(false, 1) >= 0;
35	>	public boolean tryAcquire(int acquires) {
36	>	assertTrue(acquires == 1);
37	>	return compareAndSetState(0, 1);
38		}
39	<	public void lock() {
40	<	sync.acquireExclusiveUninterruptibly(1);
39	>
40	>	public boolean tryRelease(int releases) {
41	>	if (getState() == 0) throw new IllegalMonitorStateException();
42	>	setState(0);
43	>	return true;
44		}
45	<	public void lockInterruptibly() throws InterruptedException {
46	<	sync.acquireExclusiveInterruptibly(1);
45	>
46	>	public AbstractQueuedSynchronizer.ConditionObject newCondition() { return new AbstractQueuedSynchronizer.ConditionObject(); }
47	>
48	>	}
49	>
50	>
51	>	/**
52	>	* A simple latch class, to test shared mode.
53	>	*/
54	>	static class BooleanLatch extends AbstractQueuedSynchronizer {
55	>	public boolean isSignalled() { return getState() != 0; }
56	>
57	>	public int tryAcquireShared(int ignore) {
58	>	return isSignalled()? 1 : -1;
59		}
60	<	public boolean tryLock(long timeout, TimeUnit unit) throws InterruptedException {
61	<	return sync.acquireExclusiveTimed(1, unit.toNanos(timeout));
60	>
61	>	public boolean tryReleaseShared(int ignore) {
62	>	setState(1);
63	>	return true;
64		}
76	–	public void unlock() { sync.releaseExclusive(1); }
77	–	public Condition newCondition() { return sync.newCondition(); }
78	–	public boolean isLocked() { return sync.state().get() != 0; }
79	–	public boolean hasQueuedThreads() { return sync.hasQueuedThreads(); }
65		}
66
67		/**
68	<	* A runnable calling lockInterruptibly
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.lockInterruptibly();
75	>	sync.acquireInterruptibly(1);
76		} catch(InterruptedException success){}
77		}
78		}
79
80
81		/**
82	<	* A runnable calling lockInterruptibly that expects to be
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.lockInterruptibly();
90	>	sync.acquireInterruptibly(1);
91		threadShouldThrow();
92		} catch(InterruptedException success){}
93		}
94		}
95	+
96	+	/**
97	+	* isHeldExclusively is false upon construction
98	+	*/
99	+	public void testIsHeldExclusively() {
100	+	Mutex rl = new Mutex();
101	+	assertFalse(rl.isHeldExclusively());
102	+	}
103
104		/**
105	<	* locking an unlocked lock succeeds
105	>	* acquiring released sync succeeds
106		*/
107	<	public void testLock() {
107	>	public void testAcquire() {
108		Mutex rl = new Mutex();
109	<	rl.lock();
110	<	assertTrue(rl.isLocked());
111	<	rl.unlock();
109	>	rl.acquire(1);
110	>	assertTrue(rl.isHeldExclusively());
111	>	rl.release(1);
112	>	assertFalse(rl.isHeldExclusively());
113		}
114
115		/**
116	<	* tryLock on an unlocked lock succeeds
116	>	* tryAcquire on an released sync succeeds
117		*/
118	<	public void testTryLock() {
118	>	public void testTryAcquire() {
119		Mutex rl = new Mutex();
120	<	assertTrue(rl.tryLock());
121	<	assertTrue(rl.isLocked());
122	<	rl.unlock();
120	>	assertTrue(rl.tryAcquire(1));
121	>	assertTrue(rl.isHeldExclusively());
122	>	rl.release(1);
123		}
124
125		/**
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.lock();
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.unlock();
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 152 | public class AbstractQueuedSynchronizerT
152		}
153
154		/**
155	<	* timed tryLock is interruptible.
155	>	* isQueued(null) throws NPE
156	>	*/
157	>	public void testIsQueuedNPE() {
158	>	final Mutex sync = new Mutex();
159	>	try {
160	>	sync.isQueued(null);
161	>	shouldThrow();
162	>	} catch (NullPointerException success) {
163	>	}
164	>	}
165	>
166	>	/**
167	>	* isQueued reports whether a thread is queued.
168	>	*/
169	>	public void testIsQueued() {
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(sync.isQueued(t1));
180	>	t2.start();
181	>	Thread.sleep(SHORT_DELAY_MS);
182	>	assertTrue(sync.isQueued(t1));
183	>	assertTrue(sync.isQueued(t2));
184	>	t1.interrupt();
185	>	Thread.sleep(SHORT_DELAY_MS);
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(sync.isQueued(t2));
193	>	t1.join();
194	>	t2.join();
195	>	} catch(Exception e){
196	>	unexpectedException();
197	>	}
198	>	}
199	>
200	>	/**
201	>	* getFirstQueuedThread returns first waiting thread or null if none
202	>	*/
203	>	public void testGetFirstQueuedThread() {
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(sync.getFirstQueuedThread());
209	>	sync.acquire(1);
210	>	t1.start();
211	>	Thread.sleep(SHORT_DELAY_MS);
212	>	assertEquals(t1, sync.getFirstQueuedThread());
213	>	t2.start();
214	>	Thread.sleep(SHORT_DELAY_MS);
215	>	assertEquals(t1, sync.getFirstQueuedThread());
216	>	t1.interrupt();
217	>	Thread.sleep(SHORT_DELAY_MS);
218	>	Thread.sleep(SHORT_DELAY_MS);
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){
226	>	unexpectedException();
227	>	}
228	>	}
229	>
230	>
231	>	/**
232	>	* hasContended reports false if no thread has ever blocked, else true
233	>	*/
234	>	public void testHasContended() {
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(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(sync.getExclusiveQueuedThreads().contains(t1));
306	>	t2.start();
307	>	Thread.sleep(SHORT_DELAY_MS);
308	>	assertTrue(sync.getExclusiveQueuedThreads().contains(t1));
309	>	assertTrue(sync.getExclusiveQueuedThreads().contains(t2));
310	>	t1.interrupt();
311	>	Thread.sleep(SHORT_DELAY_MS);
312	>	assertFalse(sync.getExclusiveQueuedThreads().contains(t1));
313	>	assertTrue(sync.getExclusiveQueuedThreads().contains(t2));
314	>	sync.release(1);
315	>	Thread.sleep(SHORT_DELAY_MS);
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){
350	>	unexpectedException();
351	>	}
352	>	}
353	>
354	>	/**
355	>	* tryAcquireNanos is interruptible.
356		*/
357		public void testInterruptedException2() {
358	<	final Mutex lock = new Mutex();
359	<	lock.lock();
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.tryLock(MEDIUM_DELAY_MS,TimeUnit.MILLISECONDS);
363	>	sync.tryAcquireNanos(1, MEDIUM_DELAY_MS * 1000 * 1000);
364		threadShouldThrow();
365		} catch(InterruptedException success){}
366		}
#	Line 181 | Line 375 | public class AbstractQueuedSynchronizerT
375
376
377		/**
378	<	* TryLock on a locked lock fails
378	>	* TryAcquire on exclusively held sync fails
379		*/
380	<	public void testTryLockWhenLocked() {
381	<	final Mutex lock = new Mutex();
382	<	lock.lock();
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.tryLock());
385	>	threadAssertFalse(sync.tryAcquire(1));
386		}
387		});
388		try {
389		t.start();
390		t.join();
391	<	lock.unlock();
391	>	sync.release(1);
392		} catch(Exception e){
393		unexpectedException();
394		}
395		}
396
397		/**
398	<	* Timed tryLock on a locked lock times out
398	>	* tryAcquireNanos on an exclusively held sync times out
399		*/
400	<	public void testTryLock_Timeout() {
401	<	final Mutex lock = new Mutex();
402	<	lock.lock();
400	>	public void testAcquireNanos_Timeout() {
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.tryLock(1, TimeUnit.MILLISECONDS));
406	>	threadAssertFalse(sync.tryAcquireNanos(1, 1000 * 1000));
407		} catch (Exception ex) {
408		threadUnexpectedException();
409		}
#	Line 218 | Line 412 | public class AbstractQueuedSynchronizerT
412		try {
413		t.start();
414		t.join();
415	<	lock.unlock();
415	>	sync.release(1);
416		} catch(Exception e){
417		unexpectedException();
418		}
#	Line 226 | Line 420 | public class AbstractQueuedSynchronizerT
420
421
422		/**
423	<	* isLocked is true when locked and false when not
423	>	* getState is true when acquired and false when not
424		*/
425	<	public void testIsLocked() {
426	<	final Mutex lock = new Mutex();
427	<	lock.lock();
428	<	assertTrue(lock.isLocked());
429	<	lock.unlock();
430	<	assertFalse(lock.isLocked());
425	>	public void testGetState() {
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.lock();
433	>	sync.acquire(1);
434		try {
435		Thread.sleep(SMALL_DELAY_MS);
436		}
437		catch(Exception e) {
438		threadUnexpectedException();
439		}
440	<	lock.unlock();
440	>	sync.release(1);
441		}
442		});
443		try {
444		t.start();
445		Thread.sleep(SHORT_DELAY_MS);
446	<	assertTrue(lock.isLocked());
446	>	assertTrue(sync.isHeldExclusively());
447		t.join();
448	<	assertFalse(lock.isLocked());
448	>	assertFalse(sync.isHeldExclusively());
449		} catch(Exception e){
450		unexpectedException();
451		}
#	Line 259 | Line 453 | public class AbstractQueuedSynchronizerT
453
454
455		/**
456	<	* lockInterruptibly is interruptible.
456	>	* acquireInterruptibly is interruptible.
457		*/
458	<	public void testLockInterruptibly1() {
459	<	final Mutex lock = new Mutex();
460	<	lock.lock();
461	<	Thread t = new Thread(new InterruptedLockRunnable(lock));
458	>	public void testAcquireInterruptibly1() {
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.unlock();
466	>	Thread.sleep(SHORT_DELAY_MS);
467	>	sync.release(1);
468		t.join();
469		} catch(Exception e){
470		unexpectedException();
#	Line 276 | Line 472 | public class AbstractQueuedSynchronizerT
472		}
473
474		/**
475	<	* lockInterruptibly succeeds when unlocked, else is interruptible
475	>	* acquireInterruptibly succeeds when released, else is interruptible
476		*/
477	<	public void testLockInterruptibly2() {
478	<	final Mutex lock = new Mutex();
477	>	public void testAcquireInterruptibly2() {
478	>	final Mutex sync = new Mutex();
479		try {
480	<	lock.lockInterruptibly();
480	>	sync.acquireInterruptibly(1);
481		} catch(Exception e) {
482		unexpectedException();
483		}
484	<	Thread t = new Thread(new InterruptedLockRunnable(lock));
484	>	Thread t = new Thread(new InterruptedSyncRunnable(sync));
485		try {
486		t.start();
487		t.interrupt();
488	<	assertTrue(lock.isLocked());
488	>	assertTrue(sync.isHeldExclusively());
489		t.join();
490		} catch(Exception e){
491		unexpectedException();
#	Line 297 | Line 493 | public class AbstractQueuedSynchronizerT
493		}
494
495		/**
496	<	* Calling await without holding lock throws IllegalMonitorStateException
496	>	* owns is true for a condition created by sync else false
497	>	*/
498	>	public void testOwns() {
499	>	final Mutex sync = new Mutex();
500	>	final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition();
501	>	final Mutex sync2 = new Mutex();
502	>	assertTrue(sync.owns(c));
503	>	assertFalse(sync2.owns(c));
504	>	}
505	>
506	>	/**
507	>	* Calling await without holding sync throws IllegalMonitorStateException
508		*/
509		public void testAwait_IllegalMonitor() {
510	<	final Mutex lock = new Mutex();
511	<	final Condition c = lock.newCondition();
510	>	final Mutex sync = new Mutex();
511	>	final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition();
512		try {
513		c.await();
514		shouldThrow();
#	Line 314 | Line 521 | public class AbstractQueuedSynchronizerT
521		}
522
523		/**
524	<	* Calling signal without holding lock throws IllegalMonitorStateException
524	>	* Calling signal without holding sync throws IllegalMonitorStateException
525		*/
526		public void testSignal_IllegalMonitor() {
527	<	final Mutex lock = new Mutex();
528	<	final Condition c = lock.newCondition();
527	>	final Mutex sync = new Mutex();
528	>	final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition();
529		try {
530		c.signal();
531		shouldThrow();
#	Line 334 | Line 541 | public class AbstractQueuedSynchronizerT
541		* awaitNanos without a signal times out
542		*/
543		public void testAwaitNanos_Timeout() {
544	<	final Mutex lock = new Mutex();
545	<	final Condition c = lock.newCondition();
544	>	final Mutex sync = new Mutex();
545	>	final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition();
546		try {
547	<	lock.lock();
547	>	sync.acquire(1);
548		long t = c.awaitNanos(100);
549		assertTrue(t <= 0);
550	<	lock.unlock();
550	>	sync.release(1);
551		}
552		catch (Exception ex) {
553		unexpectedException();
#	Line 348 | Line 555 | public class AbstractQueuedSynchronizerT
555		}
556
557		/**
558	<	*  timed await without a signal times out
558	>	*  Timed await without a signal times out
559		*/
560		public void testAwait_Timeout() {
561	<	final Mutex lock = new Mutex();
562	<	final Condition c = lock.newCondition();
561	>	final Mutex sync = new Mutex();
562	>	final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition();
563		try {
564	<	lock.lock();
564	>	sync.acquire(1);
565		assertFalse(c.await(SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
566	<	lock.unlock();
566	>	sync.release(1);
567		}
568		catch (Exception ex) {
569		unexpectedException();
#	Line 367 | Line 574 | public class AbstractQueuedSynchronizerT
574		* awaitUntil without a signal times out
575		*/
576		public void testAwaitUntil_Timeout() {
577	<	final Mutex lock = new Mutex();
578	<	final Condition c = lock.newCondition();
577	>	final Mutex sync = new Mutex();
578	>	final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition();
579		try {
580	<	lock.lock();
580	>	sync.acquire(1);
581		java.util.Date d = new java.util.Date();
582		assertFalse(c.awaitUntil(new java.util.Date(d.getTime() + 10)));
583	<	lock.unlock();
583	>	sync.release(1);
584		}
585		catch (Exception ex) {
586		unexpectedException();
#	Line 384 | Line 591 | public class AbstractQueuedSynchronizerT
591		* await returns when signalled
592		*/
593		public void testAwait() {
594	<	final Mutex lock = new Mutex();
595	<	final Condition c = lock.newCondition();
594	>	final Mutex sync = new Mutex();
595	>	final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition();
596	>	Thread t = new Thread(new Runnable() {
597	>	public void run() {
598	>	try {
599	>	sync.acquire(1);
600	>	c.await();
601	>	sync.release(1);
602	>	}
603	>	catch(InterruptedException e) {
604	>	threadUnexpectedException();
605	>	}
606	>	}
607	>	});
608	>
609	>	try {
610	>	t.start();
611	>	Thread.sleep(SHORT_DELAY_MS);
612	>	sync.acquire(1);
613	>	c.signal();
614	>	sync.release(1);
615	>	t.join(SHORT_DELAY_MS);
616	>	assertFalse(t.isAlive());
617	>	}
618	>	catch (Exception ex) {
619	>	unexpectedException();
620	>	}
621	>	}
622	>
623	>
624	>
625	>	/**
626	>	* hasWaiters throws NPE if null
627	>	*/
628	>	public void testHasWaitersNPE() {
629	>	final Mutex sync = new Mutex();
630	>	try {
631	>	sync.hasWaiters(null);
632	>	shouldThrow();
633	>	} catch (NullPointerException success) {
634	>	} catch (Exception ex) {
635	>	unexpectedException();
636	>	}
637	>	}
638	>
639	>	/**
640	>	* getWaitQueueLength throws NPE if null
641	>	*/
642	>	public void testGetWaitQueueLengthNPE() {
643	>	final Mutex sync = new Mutex();
644	>	try {
645	>	sync.getWaitQueueLength(null);
646	>	shouldThrow();
647	>	} catch (NullPointerException success) {
648	>	} catch (Exception ex) {
649	>	unexpectedException();
650	>	}
651	>	}
652	>
653	>
654	>	/**
655	>	* getWaitingThreads throws NPE if null
656	>	*/
657	>	public void testGetWaitingThreadsNPE() {
658	>	final Mutex sync = new Mutex();
659	>	try {
660	>	sync.getWaitingThreads(null);
661	>	shouldThrow();
662	>	} catch (NullPointerException success) {
663	>	} catch (Exception ex) {
664	>	unexpectedException();
665	>	}
666	>	}
667	>
668	>
669	>	/**
670	>	* hasWaiters throws IAE if not owned
671	>	*/
672	>	public void testHasWaitersIAE() {
673	>	final Mutex sync = new Mutex();
674	>	final AbstractQueuedSynchronizer.ConditionObject c = (sync.newCondition());
675	>	final Mutex sync2 = new Mutex();
676	>	try {
677	>	sync2.hasWaiters(c);
678	>	shouldThrow();
679	>	} catch (IllegalArgumentException success) {
680	>	} catch (Exception ex) {
681	>	unexpectedException();
682	>	}
683	>	}
684	>
685	>	/**
686	>	* hasWaiters throws IMSE if not synced
687	>	*/
688	>	public void testHasWaitersIMSE() {
689	>	final Mutex sync = new Mutex();
690	>	final AbstractQueuedSynchronizer.ConditionObject c = (sync.newCondition());
691	>	try {
692	>	sync.hasWaiters(c);
693	>	shouldThrow();
694	>	} catch (IllegalMonitorStateException success) {
695	>	} catch (Exception ex) {
696	>	unexpectedException();
697	>	}
698	>	}
699	>
700	>
701	>	/**
702	>	* getWaitQueueLength throws IAE if not owned
703	>	*/
704	>	public void testGetWaitQueueLengthIAE() {
705	>	final Mutex sync = new Mutex();
706	>	final AbstractQueuedSynchronizer.ConditionObject c = (sync.newCondition());
707	>	final Mutex sync2 = new Mutex();
708	>	try {
709	>	sync2.getWaitQueueLength(c);
710	>	shouldThrow();
711	>	} catch (IllegalArgumentException success) {
712	>	} catch (Exception ex) {
713	>	unexpectedException();
714	>	}
715	>	}
716	>
717	>	/**
718	>	* getWaitQueueLength throws IMSE if not synced
719	>	*/
720	>	public void testGetWaitQueueLengthIMSE() {
721	>	final Mutex sync = new Mutex();
722	>	final AbstractQueuedSynchronizer.ConditionObject c = (sync.newCondition());
723	>	try {
724	>	sync.getWaitQueueLength(c);
725	>	shouldThrow();
726	>	} catch (IllegalMonitorStateException success) {
727	>	} catch (Exception ex) {
728	>	unexpectedException();
729	>	}
730	>	}
731	>
732	>
733	>	/**
734	>	* getWaitingThreads throws IAE if not owned
735	>	*/
736	>	public void testGetWaitingThreadsIAE() {
737	>	final Mutex sync = new Mutex();
738	>	final AbstractQueuedSynchronizer.ConditionObject c = (sync.newCondition());
739	>	final Mutex sync2 = new Mutex();
740	>	try {
741	>	sync2.getWaitingThreads(c);
742	>	shouldThrow();
743	>	} catch (IllegalArgumentException success) {
744	>	} catch (Exception ex) {
745	>	unexpectedException();
746	>	}
747	>	}
748	>
749	>	/**
750	>	* getWaitingThreads throws IMSE if not synced
751	>	*/
752	>	public void testGetWaitingThreadsIMSE() {
753	>	final Mutex sync = new Mutex();
754	>	final AbstractQueuedSynchronizer.ConditionObject c = (sync.newCondition());
755	>	try {
756	>	sync.getWaitingThreads(c);
757	>	shouldThrow();
758	>	} catch (IllegalMonitorStateException success) {
759	>	} catch (Exception ex) {
760	>	unexpectedException();
761	>	}
762	>	}
763	>
764	>
765	>
766	>	/**
767	>	* hasWaiters returns true when a thread is waiting, else false
768	>	*/
769	>	public void testHasWaiters() {
770	>	final Mutex sync = new Mutex();
771	>	final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition();
772		Thread t = new Thread(new Runnable() {
773		public void run() {
774		try {
775	<	lock.lock();
775	>	sync.acquire(1);
776	>	threadAssertFalse(sync.hasWaiters(c));
777	>	threadAssertEquals(0, sync.getWaitQueueLength(c));
778		c.await();
779	<	lock.unlock();
779	>	sync.release(1);
780		}
781		catch(InterruptedException e) {
782		threadUnexpectedException();
#	Line 402 | Line 787 | public class AbstractQueuedSynchronizerT
787		try {
788		t.start();
789		Thread.sleep(SHORT_DELAY_MS);
790	<	lock.lock();
790	>	sync.acquire(1);
791	>	assertTrue(sync.hasWaiters(c));
792	>	assertEquals(1, sync.getWaitQueueLength(c));
793		c.signal();
794	<	lock.unlock();
794	>	sync.release(1);
795	>	Thread.sleep(SHORT_DELAY_MS);
796	>	sync.acquire(1);
797	>	assertFalse(sync.hasWaiters(c));
798	>	assertEquals(0, sync.getWaitQueueLength(c));
799	>	sync.release(1);
800		t.join(SHORT_DELAY_MS);
801		assertFalse(t.isAlive());
802		}
#	Line 412 | Line 804 | public class AbstractQueuedSynchronizerT
804		unexpectedException();
805		}
806		}
807	+
808	+	/**
809	+	* getWaitQueueLength returns number of waiting threads
810	+	*/
811	+	public void testGetWaitQueueLength() {
812	+	final Mutex sync = new Mutex();
813	+	final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition();
814	+	Thread t1 = new Thread(new Runnable() {
815	+	public void run() {
816	+	try {
817	+	sync.acquire(1);
818	+	threadAssertFalse(sync.hasWaiters(c));
819	+	threadAssertEquals(0, sync.getWaitQueueLength(c));
820	+	c.await();
821	+	sync.release(1);
822	+	}
823	+	catch(InterruptedException e) {
824	+	threadUnexpectedException();
825	+	}
826	+	}
827	+	});
828	+
829	+	Thread t2 = new Thread(new Runnable() {
830	+	public void run() {
831	+	try {
832	+	sync.acquire(1);
833	+	threadAssertTrue(sync.hasWaiters(c));
834	+	threadAssertEquals(1, sync.getWaitQueueLength(c));
835	+	c.await();
836	+	sync.release(1);
837	+	}
838	+	catch(InterruptedException e) {
839	+	threadUnexpectedException();
840	+	}
841	+	}
842	+	});
843	+
844	+	try {
845	+	t1.start();
846	+	Thread.sleep(SHORT_DELAY_MS);
847	+	t2.start();
848	+	Thread.sleep(SHORT_DELAY_MS);
849	+	sync.acquire(1);
850	+	assertTrue(sync.hasWaiters(c));
851	+	assertEquals(2, sync.getWaitQueueLength(c));
852	+	c.signalAll();
853	+	sync.release(1);
854	+	Thread.sleep(SHORT_DELAY_MS);
855	+	sync.acquire(1);
856	+	assertFalse(sync.hasWaiters(c));
857	+	assertEquals(0, sync.getWaitQueueLength(c));
858	+	sync.release(1);
859	+	t1.join(SHORT_DELAY_MS);
860	+	t2.join(SHORT_DELAY_MS);
861	+	assertFalse(t1.isAlive());
862	+	assertFalse(t2.isAlive());
863	+	}
864	+	catch (Exception ex) {
865	+	unexpectedException();
866	+	}
867	+	}
868	+
869	+	/**
870	+	* getWaitingThreads returns only and all waiting threads
871	+	*/
872	+	public void testGetWaitingThreads() {
873	+	final Mutex sync = new Mutex();
874	+	final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition();
875	+	Thread t1 = new Thread(new Runnable() {
876	+	public void run() {
877	+	try {
878	+	sync.acquire(1);
879	+	threadAssertTrue(sync.getWaitingThreads(c).isEmpty());
880	+	c.await();
881	+	sync.release(1);
882	+	}
883	+	catch(InterruptedException e) {
884	+	threadUnexpectedException();
885	+	}
886	+	}
887	+	});
888	+
889	+	Thread t2 = new Thread(new Runnable() {
890	+	public void run() {
891	+	try {
892	+	sync.acquire(1);
893	+	threadAssertFalse(sync.getWaitingThreads(c).isEmpty());
894	+	c.await();
895	+	sync.release(1);
896	+	}
897	+	catch(InterruptedException e) {
898	+	threadUnexpectedException();
899	+	}
900	+	}
901	+	});
902	+
903	+	try {
904	+	sync.acquire(1);
905	+	assertTrue(sync.getWaitingThreads(c).isEmpty());
906	+	sync.release(1);
907	+	t1.start();
908	+	Thread.sleep(SHORT_DELAY_MS);
909	+	t2.start();
910	+	Thread.sleep(SHORT_DELAY_MS);
911	+	sync.acquire(1);
912	+	assertTrue(sync.hasWaiters(c));
913	+	assertTrue(sync.getWaitingThreads(c).contains(t1));
914	+	assertTrue(sync.getWaitingThreads(c).contains(t2));
915	+	c.signalAll();
916	+	sync.release(1);
917	+	Thread.sleep(SHORT_DELAY_MS);
918	+	sync.acquire(1);
919	+	assertFalse(sync.hasWaiters(c));
920	+	assertTrue(sync.getWaitingThreads(c).isEmpty());
921	+	sync.release(1);
922	+	t1.join(SHORT_DELAY_MS);
923	+	t2.join(SHORT_DELAY_MS);
924	+	assertFalse(t1.isAlive());
925	+	assertFalse(t2.isAlive());
926	+	}
927	+	catch (Exception ex) {
928	+	unexpectedException();
929	+	}
930	+	}
931	+
932	+
933	+
934	+	/**
935	+	* awaitUninterruptibly doesn't abort on interrupt
936	+	*/
937	+	public void testAwaitUninterruptibly() {
938	+	final Mutex sync = new Mutex();
939	+	final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition();
940	+	Thread t = new Thread(new Runnable() {
941	+	public void run() {
942	+	sync.acquire(1);
943	+	c.awaitUninterruptibly();
944	+	sync.release(1);
945	+	}
946	+	});
947	+
948	+	try {
949	+	t.start();
950	+	Thread.sleep(SHORT_DELAY_MS);
951	+	t.interrupt();
952	+	sync.acquire(1);
953	+	c.signal();
954	+	sync.release(1);
955	+	t.join(SHORT_DELAY_MS);
956	+	assertFalse(t.isAlive());
957	+	}
958	+	catch (Exception ex) {
959	+	unexpectedException();
960	+	}
961	+	}
962	+
963	+	/**
964	+	* await is interruptible
965	+	*/
966	+	public void testAwait_Interrupt() {
967	+	final Mutex sync = new Mutex();
968	+	final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition();
969	+	Thread t = new Thread(new Runnable() {
970	+	public void run() {
971	+	try {
972	+	sync.acquire(1);
973	+	c.await();
974	+	sync.release(1);
975	+	threadShouldThrow();
976	+	}
977	+	catch(InterruptedException success) {
978	+	}
979	+	}
980	+	});
981	+
982	+	try {
983	+	t.start();
984	+	Thread.sleep(SHORT_DELAY_MS);
985	+	t.interrupt();
986	+	t.join(SHORT_DELAY_MS);
987	+	assertFalse(t.isAlive());
988	+	}
989	+	catch (Exception ex) {
990	+	unexpectedException();
991	+	}
992	+	}
993	+
994	+	/**
995	+	* awaitNanos is interruptible
996	+	*/
997	+	public void testAwaitNanos_Interrupt() {
998	+	final Mutex sync = new Mutex();
999	+	final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition();
1000	+	Thread t = new Thread(new Runnable() {
1001	+	public void run() {
1002	+	try {
1003	+	sync.acquire(1);
1004	+	c.awaitNanos(1000 * 1000 * 1000); // 1 sec
1005	+	sync.release(1);
1006	+	threadShouldThrow();
1007	+	}
1008	+	catch(InterruptedException success) {
1009	+	}
1010	+	}
1011	+	});
1012	+
1013	+	try {
1014	+	t.start();
1015	+	Thread.sleep(SHORT_DELAY_MS);
1016	+	t.interrupt();
1017	+	t.join(SHORT_DELAY_MS);
1018	+	assertFalse(t.isAlive());
1019	+	}
1020	+	catch (Exception ex) {
1021	+	unexpectedException();
1022	+	}
1023	+	}
1024	+
1025	+	/**
1026	+	* awaitUntil is interruptible
1027	+	*/
1028	+	public void testAwaitUntil_Interrupt() {
1029	+	final Mutex sync = new Mutex();
1030	+	final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition();
1031	+	Thread t = new Thread(new Runnable() {
1032	+	public void run() {
1033	+	try {
1034	+	sync.acquire(1);
1035	+	java.util.Date d = new java.util.Date();
1036	+	c.awaitUntil(new java.util.Date(d.getTime() + 10000));
1037	+	sync.release(1);
1038	+	threadShouldThrow();
1039	+	}
1040	+	catch(InterruptedException success) {
1041	+	}
1042	+	}
1043	+	});
1044	+
1045	+	try {
1046	+	t.start();
1047	+	Thread.sleep(SHORT_DELAY_MS);
1048	+	t.interrupt();
1049	+	t.join(SHORT_DELAY_MS);
1050	+	assertFalse(t.isAlive());
1051	+	}
1052	+	catch (Exception ex) {
1053	+	unexpectedException();
1054	+	}
1055	+	}
1056	+
1057	+	/**
1058	+	* signalAll wakes up all threads
1059	+	*/
1060	+	public void testSignalAll() {
1061	+	final Mutex sync = new Mutex();
1062	+	final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition();
1063	+	Thread t1 = new Thread(new Runnable() {
1064	+	public void run() {
1065	+	try {
1066	+	sync.acquire(1);
1067	+	c.await();
1068	+	sync.release(1);
1069	+	}
1070	+	catch(InterruptedException e) {
1071	+	threadUnexpectedException();
1072	+	}
1073	+	}
1074	+	});
1075	+
1076	+	Thread t2 = new Thread(new Runnable() {
1077	+	public void run() {
1078	+	try {
1079	+	sync.acquire(1);
1080	+	c.await();
1081	+	sync.release(1);
1082	+	}
1083	+	catch(InterruptedException e) {
1084	+	threadUnexpectedException();
1085	+	}
1086	+	}
1087	+	});
1088	+
1089	+	try {
1090	+	t1.start();
1091	+	t2.start();
1092	+	Thread.sleep(SHORT_DELAY_MS);
1093	+	sync.acquire(1);
1094	+	c.signalAll();
1095	+	sync.release(1);
1096	+	t1.join(SHORT_DELAY_MS);
1097	+	t2.join(SHORT_DELAY_MS);
1098	+	assertFalse(t1.isAlive());
1099	+	assertFalse(t2.isAlive());
1100	+	}
1101	+	catch (Exception ex) {
1102	+	unexpectedException();
1103	+	}
1104	+	}
1105	+
1106	+
1107	+	/**
1108	+	* toString indicates current state
1109	+	*/
1110	+	public void testToString() {
1111	+	Mutex sync = new Mutex();
1112	+	String us = sync.toString();
1113	+	assertTrue(us.indexOf("State = 0") >= 0);
1114	+	sync.acquire(1);
1115	+	String ls = sync.toString();
1116	+	assertTrue(ls.indexOf("State = 1") >= 0);
1117	+	}
1118	+
1119	+	/**
1120	+	* A serialized AQS deserializes with current state
1121	+	*/
1122	+	public void testSerialization() {
1123	+	Mutex l = new Mutex();
1124	+	l.acquire(1);
1125	+	assertTrue(l.isHeldExclusively());
1126	+
1127	+	try {
1128	+	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
1129	+	ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
1130	+	out.writeObject(l);
1131	+	out.close();
1132	+
1133	+	ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
1134	+	ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
1135	+	Mutex r = (Mutex) in.readObject();
1136	+	assertTrue(r.isHeldExclusively());
1137	+	} catch(Exception e){
1138	+	e.printStackTrace();
1139	+	unexpectedException();
1140	+	}
1141	+	}
1142	+
1143	+
1144	+	/**
1145	+	* tryReleaseShared setting state changes getState
1146	+	*/
1147	+	public void testGetStateWithReleaseShared() {
1148	+	final BooleanLatch l = new BooleanLatch();
1149	+	assertFalse(l.isSignalled());
1150	+	l.releaseShared(0);
1151	+	assertTrue(l.isSignalled());
1152	+	}
1153	+
1154	+	/**
1155	+	* releaseShared has no effect when already signalled
1156	+	*/
1157	+	public void testReleaseShared() {
1158	+	final BooleanLatch l = new BooleanLatch();
1159	+	assertFalse(l.isSignalled());
1160	+	l.releaseShared(0);
1161	+	assertTrue(l.isSignalled());
1162	+	l.releaseShared(0);
1163	+	assertTrue(l.isSignalled());
1164	+	}
1165	+
1166	+	/**
1167	+	* acquireSharedInterruptibly returns after release, but not before
1168	+	*/
1169	+	public void testAcquireSharedInterruptibly() {
1170	+	final BooleanLatch l = new BooleanLatch();
1171	+
1172	+	Thread t = new Thread(new Runnable() {
1173	+	public void run() {
1174	+	try {
1175	+	threadAssertFalse(l.isSignalled());
1176	+	l.acquireSharedInterruptibly(0);
1177	+	threadAssertTrue(l.isSignalled());
1178	+	} catch(InterruptedException e){
1179	+	threadUnexpectedException();
1180	+	}
1181	+	}
1182	+	});
1183	+	try {
1184	+	t.start();
1185	+	assertFalse(l.isSignalled());
1186	+	Thread.sleep(SHORT_DELAY_MS);
1187	+	l.releaseShared(0);
1188	+	assertTrue(l.isSignalled());
1189	+	t.join();
1190	+	} catch (InterruptedException e){
1191	+	unexpectedException();
1192	+	}
1193	+	}
1194	+
1195	+
1196	+	/**
1197	+	* acquireSharedTimed returns after release
1198	+	*/
1199	+	public void testAsquireSharedTimed() {
1200	+	final BooleanLatch l = new BooleanLatch();
1201	+
1202	+	Thread t = new Thread(new Runnable() {
1203	+	public void run() {
1204	+	try {
1205	+	threadAssertFalse(l.isSignalled());
1206	+	threadAssertTrue(l.tryAcquireSharedNanos(0, MEDIUM_DELAY_MS* 1000 * 1000));
1207	+	threadAssertTrue(l.isSignalled());
1208	+
1209	+	} catch(InterruptedException e){
1210	+	threadUnexpectedException();
1211	+	}
1212	+	}
1213	+	});
1214	+	try {
1215	+	t.start();
1216	+	assertFalse(l.isSignalled());
1217	+	Thread.sleep(SHORT_DELAY_MS);
1218	+	l.releaseShared(0);
1219	+	assertTrue(l.isSignalled());
1220	+	t.join();
1221	+	} catch (InterruptedException e){
1222	+	unexpectedException();
1223	+	}
1224	+	}
1225	+
1226	+	/**
1227	+	* acquireSharedInterruptibly throws IE if interrupted before released
1228	+	*/
1229	+	public void testAcquireSharedInterruptibly_InterruptedException() {
1230	+	final BooleanLatch l = new BooleanLatch();
1231	+	Thread t = new Thread(new Runnable() {
1232	+	public void run() {
1233	+	try {
1234	+	threadAssertFalse(l.isSignalled());
1235	+	l.acquireSharedInterruptibly(0);
1236	+	threadShouldThrow();
1237	+	} catch(InterruptedException success){}
1238	+	}
1239	+	});
1240	+	t.start();
1241	+	try {
1242	+	assertFalse(l.isSignalled());
1243	+	t.interrupt();
1244	+	t.join();
1245	+	} catch (InterruptedException e){
1246	+	unexpectedException();
1247	+	}
1248	+	}
1249	+
1250	+	/**
1251	+	* acquireSharedTimed throws IE if interrupted before released
1252	+	*/
1253	+	public void testAcquireSharedNanos_InterruptedException() {
1254	+	final BooleanLatch l = new BooleanLatch();
1255	+	Thread t = new Thread(new Runnable() {
1256	+	public void run() {
1257	+	try {
1258	+	threadAssertFalse(l.isSignalled());
1259	+	l.tryAcquireSharedNanos(0, SMALL_DELAY_MS* 1000 * 1000);
1260	+	threadShouldThrow();
1261	+	} catch(InterruptedException success){}
1262	+	}
1263	+	});
1264	+	t.start();
1265	+	try {
1266	+	Thread.sleep(SHORT_DELAY_MS);
1267	+	assertFalse(l.isSignalled());
1268	+	t.interrupt();
1269	+	t.join();
1270	+	} catch (InterruptedException e){
1271	+	unexpectedException();
1272	+	}
1273	+	}
1274	+
1275	+	/**
1276	+	* acquireSharedTimed times out if not released before timeout
1277	+	*/
1278	+	public void testAcquireSharedNanos_Timeout() {
1279	+	final BooleanLatch l = new BooleanLatch();
1280	+	Thread t = new Thread(new Runnable() {
1281	+	public void run() {
1282	+	try {
1283	+	threadAssertFalse(l.isSignalled());
1284	+	threadAssertFalse(l.tryAcquireSharedNanos(0, SMALL_DELAY_MS* 1000 * 1000));
1285	+	} catch(InterruptedException ie){
1286	+	threadUnexpectedException();
1287	+	}
1288	+	}
1289	+	});
1290	+	t.start();
1291	+	try {
1292	+	Thread.sleep(SHORT_DELAY_MS);
1293	+	assertFalse(l.isSignalled());
1294	+	t.join();
1295	+	} catch (InterruptedException e){
1296	+	unexpectedException();
1297	+	}
1298	+	}
1299	+
1300
1301		}

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