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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 1.39 by jsr166, Tue Mar 15 19:47:06 2011 UTC

#	Line 1 | Line 1
1		/*
2		* Written by Doug Lea with assistance from members of JCP JSR-166
3		* Expert Group and released to the public domain, as explained at
4	<	* http://creativecommons.org/licenses/publicdomain
5	<	* Other contributors include Andrew Wright, Jeffrey Hayes,
6	<	* Pat Fisher, Mike Judd.
4	>	* http://creativecommons.org/publicdomain/zero/1.0/
5	>	* Other contributors include Andrew Wright, Jeffrey Hayes,
6	>	* Pat Fisher, Mike Judd.
7		*/
8
9
10		import junit.framework.*;
11		import java.util.*;
12		import java.util.concurrent.*;
13	+	import static java.util.concurrent.TimeUnit.MILLISECONDS;
14		import java.util.concurrent.locks.*;
15		import java.io.*;
16
17		public class AbstractQueuedSynchronizerTest extends JSR166TestCase {
18		public static void main(String[] args) {
19	<	junit.textui.TestRunner.run (suite());
19	>	junit.textui.TestRunner.run(suite());
20		}
21		public static Test suite() {
22		return new TestSuite(AbstractQueuedSynchronizerTest.class);
#	Line 31 | Line 32 | public class AbstractQueuedSynchronizerT
32		*/
33		static class Mutex extends AbstractQueuedSynchronizer {
34		public boolean isHeldExclusively() { return getState() == 1; }
35	<
35	>
36		public boolean tryAcquire(int acquires) {
37	<	assertTrue(acquires == 1);
37	>	assertEquals(1, acquires);
38		return compareAndSetState(0, 1);
39		}
40	<
40	>
41		public boolean tryRelease(int releases) {
42		if (getState() == 0) throw new IllegalMonitorStateException();
43		setState(0);
44		return true;
45		}
46	<
47	<	public AbstractQueuedSynchronizer.ConditionObject newCondition() { return new AbstractQueuedSynchronizer.ConditionObject(); }
48	<
48	<	public void lock() {
49	<	acquire(1);
46	>
47	>	public AbstractQueuedSynchronizer.ConditionObject newCondition() {
48	>	return new AbstractQueuedSynchronizer.ConditionObject();
49		}
50
51		}
52
53	<
53	>
54		/**
55		* A simple latch class, to test shared mode.
56		*/
57	<	static class BooleanLatch extends AbstractQueuedSynchronizer {
57	>	static class BooleanLatch extends AbstractQueuedSynchronizer {
58		public boolean isSignalled() { return getState() != 0; }
59
60		public int tryAcquireShared(int ignore) {
61	<	return isSignalled()? 1 : -1;
61	>	return isSignalled() ? 1 : -1;
62		}
63	<
63	>
64		public boolean tryReleaseShared(int ignore) {
65		setState(1);
66		return true;
#	Line 69 | Line 68 | public class AbstractQueuedSynchronizerT
68		}
69
70		/**
71	<	* A runnable calling acquireInterruptibly
71	>	* A runnable calling acquireInterruptibly that does not expect to
72	>	* be interrupted.
73		*/
74	<	class InterruptibleLockRunnable implements Runnable {
75	<	final Mutex lock;
76	<	InterruptibleLockRunnable(Mutex l) { lock = l; }
77	<	public void run() {
78	<	try {
79	<	lock.acquireInterruptibly(1);
80	<	} catch(InterruptedException success){}
74	>	class InterruptibleSyncRunnable extends CheckedRunnable {
75	>	final Mutex sync;
76	>	InterruptibleSyncRunnable(Mutex l) { sync = l; }
77	>	public void realRun() throws InterruptedException {
78	>	sync.acquireInterruptibly(1);
79		}
80		}
81
82
83		/**
84		* A runnable calling acquireInterruptibly that expects to be
85	<	* interrupted
85	>	* interrupted.
86		*/
87	<	class InterruptedLockRunnable implements Runnable {
88	<	final Mutex lock;
89	<	InterruptedLockRunnable(Mutex l) { lock = l; }
90	<	public void run() {
91	<	try {
94	<	lock.acquireInterruptibly(1);
95	<	threadShouldThrow();
96	<	} catch(InterruptedException success){}
87	>	class InterruptedSyncRunnable extends CheckedInterruptedRunnable {
88	>	final Mutex sync;
89	>	InterruptedSyncRunnable(Mutex l) { sync = l; }
90	>	public void realRun() throws InterruptedException {
91	>	sync.acquireInterruptibly(1);
92		}
93		}
94
95		/**
96		* isHeldExclusively is false upon construction
97		*/
98	<	public void testIsHeldExclusively() {
99	<	Mutex rl = new Mutex();
98	>	public void testIsHeldExclusively() {
99	>	Mutex rl = new Mutex();
100		assertFalse(rl.isHeldExclusively());
101		}
102	<
102	>
103		/**
104	<	* acquiring released lock succeeds
104	>	* acquiring released sync succeeds
105		*/
106	<	public void testAcquire() {
107	<	Mutex rl = new Mutex();
106	>	public void testAcquire() {
107	>	Mutex rl = new Mutex();
108		rl.acquire(1);
109		assertTrue(rl.isHeldExclusively());
110		rl.release(1);
111	+	assertFalse(rl.isHeldExclusively());
112		}
113
114		/**
115	<	* tryAcquire on an released lock succeeds
115	>	* tryAcquire on an released sync succeeds
116		*/
117	<	public void testTryAcquire() {
118	<	Mutex rl = new Mutex();
117	>	public void testTryAcquire() {
118	>	Mutex rl = new Mutex();
119		assertTrue(rl.tryAcquire(1));
120		assertTrue(rl.isHeldExclusively());
121		rl.release(1);
#	Line 128 | Line 124 | public class AbstractQueuedSynchronizerT
124		/**
125		* hasQueuedThreads reports whether there are waiting threads
126		*/
127	<	public void testhasQueuedThreads() {
128	<	final Mutex lock = new Mutex();
129	<	Thread t1 = new Thread(new InterruptedLockRunnable(lock));
130	<	Thread t2 = new Thread(new InterruptibleLockRunnable(lock));
131	<	try {
132	<	assertFalse(lock.hasQueuedThreads());
133	<	lock.acquire(1);
134	<	t1.start();
135	<	Thread.sleep(SHORT_DELAY_MS);
136	<	assertTrue(lock.hasQueuedThreads());
137	<	t2.start();
138	<	Thread.sleep(SHORT_DELAY_MS);
139	<	assertTrue(lock.hasQueuedThreads());
140	<	t1.interrupt();
141	<	Thread.sleep(SHORT_DELAY_MS);
142	<	assertTrue(lock.hasQueuedThreads());
143	<	lock.release(1);
144	<	Thread.sleep(SHORT_DELAY_MS);
145	<	assertFalse(lock.hasQueuedThreads());
146	<	t1.join();
147	<	t2.join();
152	<	} catch(Exception e){
153	<	unexpectedException();
154	<	}
155	<	}
127	>	public void testhasQueuedThreads() throws InterruptedException {
128	>	final Mutex sync = new Mutex();
129	>	Thread t1 = new Thread(new InterruptedSyncRunnable(sync));
130	>	Thread t2 = new Thread(new InterruptibleSyncRunnable(sync));
131	>	assertFalse(sync.hasQueuedThreads());
132	>	sync.acquire(1);
133	>	t1.start();
134	>	Thread.sleep(SHORT_DELAY_MS);
135	>	assertTrue(sync.hasQueuedThreads());
136	>	t2.start();
137	>	Thread.sleep(SHORT_DELAY_MS);
138	>	assertTrue(sync.hasQueuedThreads());
139	>	t1.interrupt();
140	>	Thread.sleep(SHORT_DELAY_MS);
141	>	assertTrue(sync.hasQueuedThreads());
142	>	sync.release(1);
143	>	Thread.sleep(SHORT_DELAY_MS);
144	>	assertFalse(sync.hasQueuedThreads());
145	>	t1.join();
146	>	t2.join();
147	>	}
148
149		/**
150		* isQueued(null) throws NPE
151		*/
152	<	public void testIsQueuedNPE() {
153	<	final Mutex lock = new Mutex();
152	>	public void testIsQueuedNPE() {
153	>	final Mutex sync = new Mutex();
154		try {
155	<	lock.isQueued(null);
155	>	sync.isQueued(null);
156		shouldThrow();
157	<	} catch (NullPointerException success) {
166	<	}
157	>	} catch (NullPointerException success) {}
158		}
159
160		/**
161		* isQueued reports whether a thread is queued.
162		*/
163	<	public void testIsQueued() {
164	<	final Mutex lock = new Mutex();
165	<	Thread t1 = new Thread(new InterruptedLockRunnable(lock));
166	<	Thread t2 = new Thread(new InterruptibleLockRunnable(lock));
167	<	try {
168	<	assertFalse(lock.isQueued(t1));
169	<	assertFalse(lock.isQueued(t2));
170	<	lock.acquire(1);
171	<	t1.start();
172	<	Thread.sleep(SHORT_DELAY_MS);
173	<	assertTrue(lock.isQueued(t1));
174	<	t2.start();
175	<	Thread.sleep(SHORT_DELAY_MS);
176	<	assertTrue(lock.isQueued(t1));
177	<	assertTrue(lock.isQueued(t2));
178	<	t1.interrupt();
179	<	Thread.sleep(SHORT_DELAY_MS);
180	<	assertFalse(lock.isQueued(t1));
181	<	assertTrue(lock.isQueued(t2));
182	<	lock.release(1);
183	<	Thread.sleep(SHORT_DELAY_MS);
184	<	assertFalse(lock.isQueued(t1));
185	<	assertFalse(lock.isQueued(t2));
186	<	t1.join();
187	<	t2.join();
188	<	} catch(Exception e){
198	<	unexpectedException();
199	<	}
200	<	}
163	>	public void testIsQueued() throws InterruptedException {
164	>	final Mutex sync = new Mutex();
165	>	Thread t1 = new Thread(new InterruptedSyncRunnable(sync));
166	>	Thread t2 = new Thread(new InterruptibleSyncRunnable(sync));
167	>	assertFalse(sync.isQueued(t1));
168	>	assertFalse(sync.isQueued(t2));
169	>	sync.acquire(1);
170	>	t1.start();
171	>	Thread.sleep(SHORT_DELAY_MS);
172	>	assertTrue(sync.isQueued(t1));
173	>	t2.start();
174	>	Thread.sleep(SHORT_DELAY_MS);
175	>	assertTrue(sync.isQueued(t1));
176	>	assertTrue(sync.isQueued(t2));
177	>	t1.interrupt();
178	>	Thread.sleep(SHORT_DELAY_MS);
179	>	assertFalse(sync.isQueued(t1));
180	>	assertTrue(sync.isQueued(t2));
181	>	sync.release(1);
182	>	Thread.sleep(SHORT_DELAY_MS);
183	>	assertFalse(sync.isQueued(t1));
184	>	Thread.sleep(SHORT_DELAY_MS);
185	>	assertFalse(sync.isQueued(t2));
186	>	t1.join();
187	>	t2.join();
188	>	}
189
190		/**
191	<	* getFirstQueuedThread returns first waiting thread or null is none
192	<	*/
193	<	public void testGetFirstQueuedThread() {
194	<	final Mutex lock = new Mutex();
195	<	Thread t1 = new Thread(new InterruptedLockRunnable(lock));
196	<	Thread t2 = new Thread(new InterruptibleLockRunnable(lock));
197	<	try {
198	<	assertNull(lock.getFirstQueuedThread());
199	<	lock.acquire(1);
200	<	t1.start();
201	<	Thread.sleep(SHORT_DELAY_MS);
202	<	assertEquals(t1, lock.getFirstQueuedThread());
203	<	t2.start();
204	<	Thread.sleep(SHORT_DELAY_MS);
205	<	assertEquals(t1, lock.getFirstQueuedThread());
206	<	t1.interrupt();
207	<	Thread.sleep(SHORT_DELAY_MS);
208	<	assertEquals(t2, lock.getFirstQueuedThread());
209	<	lock.release(1);
210	<	Thread.sleep(SHORT_DELAY_MS);
211	<	assertNull(lock.getFirstQueuedThread());
212	<	t1.join();
213	<	t2.join();
214	<	} catch(Exception e){
227	<	unexpectedException();
228	<	}
229	<	}
191	>	* getFirstQueuedThread returns first waiting thread or null if none
192	>	*/
193	>	public void testGetFirstQueuedThread() throws InterruptedException {
194	>	final Mutex sync = new Mutex();
195	>	Thread t1 = new Thread(new InterruptedSyncRunnable(sync));
196	>	Thread t2 = new Thread(new InterruptibleSyncRunnable(sync));
197	>	assertNull(sync.getFirstQueuedThread());
198	>	sync.acquire(1);
199	>	t1.start();
200	>	Thread.sleep(SHORT_DELAY_MS);
201	>	assertEquals(t1, sync.getFirstQueuedThread());
202	>	t2.start();
203	>	Thread.sleep(SHORT_DELAY_MS);
204	>	assertEquals(t1, sync.getFirstQueuedThread());
205	>	t1.interrupt();
206	>	Thread.sleep(SHORT_DELAY_MS);
207	>	Thread.sleep(SHORT_DELAY_MS);
208	>	assertEquals(t2, sync.getFirstQueuedThread());
209	>	sync.release(1);
210	>	Thread.sleep(SHORT_DELAY_MS);
211	>	assertNull(sync.getFirstQueuedThread());
212	>	t1.join();
213	>	t2.join();
214	>	}
215
216
217		/**
218		* hasContended reports false if no thread has ever blocked, else true
219		*/
220	<	public void testHasContended() {
221	<	final Mutex lock = new Mutex();
222	<	Thread t1 = new Thread(new InterruptedLockRunnable(lock));
223	<	Thread t2 = new Thread(new InterruptibleLockRunnable(lock));
224	<	try {
225	<	assertFalse(lock.hasContended());
226	<	lock.acquire(1);
227	<	t1.start();
228	<	Thread.sleep(SHORT_DELAY_MS);
229	<	assertTrue(lock.hasContended());
230	<	t2.start();
231	<	Thread.sleep(SHORT_DELAY_MS);
232	<	assertTrue(lock.hasContended());
233	<	t1.interrupt();
234	<	Thread.sleep(SHORT_DELAY_MS);
235	<	assertTrue(lock.hasContended());
236	<	lock.release(1);
237	<	Thread.sleep(SHORT_DELAY_MS);
238	<	assertTrue(lock.hasContended());
239	<	t1.join();
240	<	t2.join();
241	<	} catch(Exception e){
242	<	unexpectedException();
243	<	}
244	<	}
220	>	public void testHasContended() throws InterruptedException {
221	>	final Mutex sync = new Mutex();
222	>	Thread t1 = new Thread(new InterruptedSyncRunnable(sync));
223	>	Thread t2 = new Thread(new InterruptibleSyncRunnable(sync));
224	>	assertFalse(sync.hasContended());
225	>	sync.acquire(1);
226	>	t1.start();
227	>	Thread.sleep(SHORT_DELAY_MS);
228	>	assertTrue(sync.hasContended());
229	>	t2.start();
230	>	Thread.sleep(SHORT_DELAY_MS);
231	>	assertTrue(sync.hasContended());
232	>	t1.interrupt();
233	>	Thread.sleep(SHORT_DELAY_MS);
234	>	assertTrue(sync.hasContended());
235	>	sync.release(1);
236	>	Thread.sleep(SHORT_DELAY_MS);
237	>	assertTrue(sync.hasContended());
238	>	t1.join();
239	>	t2.join();
240	>	}
241	>
242	>	/**
243	>	* getQueuedThreads includes waiting threads
244	>	*/
245	>	public void testGetQueuedThreads() throws InterruptedException {
246	>	final Mutex sync = new Mutex();
247	>	Thread t1 = new Thread(new InterruptedSyncRunnable(sync));
248	>	Thread t2 = new Thread(new InterruptibleSyncRunnable(sync));
249	>	assertTrue(sync.getQueuedThreads().isEmpty());
250	>	sync.acquire(1);
251	>	assertTrue(sync.getQueuedThreads().isEmpty());
252	>	t1.start();
253	>	Thread.sleep(SHORT_DELAY_MS);
254	>	assertTrue(sync.getQueuedThreads().contains(t1));
255	>	t2.start();
256	>	Thread.sleep(SHORT_DELAY_MS);
257	>	assertTrue(sync.getQueuedThreads().contains(t1));
258	>	assertTrue(sync.getQueuedThreads().contains(t2));
259	>	t1.interrupt();
260	>	Thread.sleep(SHORT_DELAY_MS);
261	>	assertFalse(sync.getQueuedThreads().contains(t1));
262	>	assertTrue(sync.getQueuedThreads().contains(t2));
263	>	sync.release(1);
264	>	Thread.sleep(SHORT_DELAY_MS);
265	>	assertTrue(sync.getQueuedThreads().isEmpty());
266	>	t1.join();
267	>	t2.join();
268	>	}
269	>
270	>	/**
271	>	* getExclusiveQueuedThreads includes waiting threads
272	>	*/
273	>	public void testGetExclusiveQueuedThreads() throws InterruptedException {
274	>	final Mutex sync = new Mutex();
275	>	Thread t1 = new Thread(new InterruptedSyncRunnable(sync));
276	>	Thread t2 = new Thread(new InterruptibleSyncRunnable(sync));
277	>	assertTrue(sync.getExclusiveQueuedThreads().isEmpty());
278	>	sync.acquire(1);
279	>	assertTrue(sync.getExclusiveQueuedThreads().isEmpty());
280	>	t1.start();
281	>	Thread.sleep(SHORT_DELAY_MS);
282	>	assertTrue(sync.getExclusiveQueuedThreads().contains(t1));
283	>	t2.start();
284	>	Thread.sleep(SHORT_DELAY_MS);
285	>	assertTrue(sync.getExclusiveQueuedThreads().contains(t1));
286	>	assertTrue(sync.getExclusiveQueuedThreads().contains(t2));
287	>	t1.interrupt();
288	>	Thread.sleep(SHORT_DELAY_MS);
289	>	assertFalse(sync.getExclusiveQueuedThreads().contains(t1));
290	>	assertTrue(sync.getExclusiveQueuedThreads().contains(t2));
291	>	sync.release(1);
292	>	Thread.sleep(SHORT_DELAY_MS);
293	>	assertTrue(sync.getExclusiveQueuedThreads().isEmpty());
294	>	t1.join();
295	>	t2.join();
296	>	}
297	>
298	>	/**
299	>	* getSharedQueuedThreads does not include exclusively waiting threads
300	>	*/
301	>	public void testGetSharedQueuedThreads() throws InterruptedException {
302	>	final Mutex sync = new Mutex();
303	>	Thread t1 = new Thread(new InterruptedSyncRunnable(sync));
304	>	Thread t2 = new Thread(new InterruptibleSyncRunnable(sync));
305	>	assertTrue(sync.getSharedQueuedThreads().isEmpty());
306	>	sync.acquire(1);
307	>	assertTrue(sync.getSharedQueuedThreads().isEmpty());
308	>	t1.start();
309	>	Thread.sleep(SHORT_DELAY_MS);
310	>	assertTrue(sync.getSharedQueuedThreads().isEmpty());
311	>	t2.start();
312	>	Thread.sleep(SHORT_DELAY_MS);
313	>	assertTrue(sync.getSharedQueuedThreads().isEmpty());
314	>	t1.interrupt();
315	>	Thread.sleep(SHORT_DELAY_MS);
316	>	assertTrue(sync.getSharedQueuedThreads().isEmpty());
317	>	sync.release(1);
318	>	Thread.sleep(SHORT_DELAY_MS);
319	>	assertTrue(sync.getSharedQueuedThreads().isEmpty());
320	>	t1.join();
321	>	t2.join();
322	>	}
323
324		/**
325		* tryAcquireNanos is interruptible.
326		*/
327	<	public void testInterruptedException2() {
328	<	final Mutex lock = new Mutex();
329	<	lock.acquire(1);
330	<	Thread t = new Thread(new Runnable() {
331	<	public void run() {
332	<	try {
333	<	lock.tryAcquireNanos(1, MEDIUM_DELAY_MS * 1000 * 1000);
334	<	threadShouldThrow();
335	<	} catch(InterruptedException success){}
336	<	}
337	<	});
338	<	try {
276	<	t.start();
277	<	t.interrupt();
278	<	} catch(Exception e){
279	<	unexpectedException();
280	<	}
327	>	public void testInterruptedException2() throws InterruptedException {
328	>	final Mutex sync = new Mutex();
329	>	sync.acquire(1);
330	>	Thread t = new Thread(new CheckedInterruptedRunnable() {
331	>	public void realRun() throws InterruptedException {
332	>	sync.tryAcquireNanos(1, MILLISECONDS.toNanos(MEDIUM_DELAY_MS));
333	>	}});
334	>
335	>	t.start();
336	>	Thread.sleep(SHORT_DELAY_MS);
337	>	t.interrupt();
338	>	t.join();
339		}
340
341
342		/**
343	<	* TryAcquire on a locked lock fails
343	>	* TryAcquire on exclusively held sync fails
344		*/
345	<	public void testTryAcquireWhenLocked() {
346	<	final Mutex lock = new Mutex();
347	<	lock.acquire(1);
348	<	Thread t = new Thread(new Runnable() {
349	<	public void run() {
350	<	threadAssertFalse(lock.tryAcquire(1));
351	<	}
352	<	});
353	<	try {
354	<	t.start();
355	<	t.join();
356	<	lock.release(1);
299	<	} catch(Exception e){
300	<	unexpectedException();
301	<	}
302	<	}
345	>	public void testTryAcquireWhenSynced() throws InterruptedException {
346	>	final Mutex sync = new Mutex();
347	>	sync.acquire(1);
348	>	Thread t = new Thread(new CheckedRunnable() {
349	>	public void realRun() {
350	>	assertFalse(sync.tryAcquire(1));
351	>	}});
352	>
353	>	t.start();
354	>	t.join();
355	>	sync.release(1);
356	>	}
357
358		/**
359	<	* tryAcquireNanos on a locked lock times out
359	>	* tryAcquireNanos on an exclusively held sync times out
360		*/
361	<	public void testAcquireNanos_Timeout() {
362	<	final Mutex lock = new Mutex();
363	<	lock.acquire(1);
364	<	Thread t = new Thread(new Runnable() {
365	<	public void run() {
366	<	try {
367	<	threadAssertFalse(lock.tryAcquireNanos(1, 1000 * 1000));
368	<	} catch (Exception ex) {
369	<	threadUnexpectedException();
370	<	}
371	<	}
372	<	});
373	<	try {
374	<	t.start();
375	<	t.join();
322	<	lock.release(1);
323	<	} catch(Exception e){
324	<	unexpectedException();
325	<	}
326	<	}
327	<
328	<
361	>	public void testAcquireNanos_Timeout() throws InterruptedException {
362	>	final Mutex sync = new Mutex();
363	>	sync.acquire(1);
364	>	Thread t = new Thread(new CheckedRunnable() {
365	>	public void realRun() throws InterruptedException {
366	>	long nanos = MILLISECONDS.toNanos(SHORT_DELAY_MS);
367	>	assertFalse(sync.tryAcquireNanos(1, nanos));
368	>	}});
369	>
370	>	t.start();
371	>	t.join();
372	>	sync.release(1);
373	>	}
374	>
375	>
376		/**
377		* getState is true when acquired and false when not
378		*/
379	<	public void testGetState() {
380	<	final Mutex lock = new Mutex();
381	<	lock.acquire(1);
382	<	assertTrue(lock.isHeldExclusively());
383	<	lock.release(1);
384	<	assertFalse(lock.isHeldExclusively());
385	<	Thread t = new Thread(new Runnable() {
386	<	public void run() {
387	<	lock.acquire(1);
388	<	try {
389	<	Thread.sleep(SMALL_DELAY_MS);
390	<	}
391	<	catch(Exception e) {
392	<	threadUnexpectedException();
393	<	}
394	<	lock.release(1);
395	<	}
396	<	});
350	<	try {
351	<	t.start();
352	<	Thread.sleep(SHORT_DELAY_MS);
353	<	assertTrue(lock.isHeldExclusively());
354	<	t.join();
355	<	assertFalse(lock.isHeldExclusively());
356	<	} catch(Exception e){
357	<	unexpectedException();
358	<	}
379	>	public void testGetState() throws InterruptedException {
380	>	final Mutex sync = new Mutex();
381	>	sync.acquire(1);
382	>	assertTrue(sync.isHeldExclusively());
383	>	sync.release(1);
384	>	assertFalse(sync.isHeldExclusively());
385	>	Thread t = new Thread(new CheckedRunnable() {
386	>	public void realRun() throws InterruptedException {
387	>	sync.acquire(1);
388	>	Thread.sleep(SMALL_DELAY_MS);
389	>	sync.release(1);
390	>	}});
391	>
392	>	t.start();
393	>	Thread.sleep(SHORT_DELAY_MS);
394	>	assertTrue(sync.isHeldExclusively());
395	>	t.join();
396	>	assertFalse(sync.isHeldExclusively());
397		}
398
399
400		/**
401		* acquireInterruptibly is interruptible.
402		*/
403	<	public void testAcquireInterruptibly1() {
404	<	final Mutex lock = new Mutex();
405	<	lock.acquire(1);
406	<	Thread t = new Thread(new InterruptedLockRunnable(lock));
407	<	try {
408	<	t.start();
409	<	t.interrupt();
410	<	lock.release(1);
411	<	t.join();
412	<	} catch(Exception e){
413	<	unexpectedException();
414	<	}
377	<	}
403	>	public void testAcquireInterruptibly1() throws InterruptedException {
404	>	final Mutex sync = new Mutex();
405	>	sync.acquire(1);
406	>	Thread t = new Thread(new InterruptedSyncRunnable(sync));
407	>
408	>	t.start();
409	>	Thread.sleep(SHORT_DELAY_MS);
410	>	t.interrupt();
411	>	Thread.sleep(SHORT_DELAY_MS);
412	>	sync.release(1);
413	>	t.join();
414	>	}
415
416		/**
417		* acquireInterruptibly succeeds when released, else is interruptible
418		*/
419	<	public void testAcquireInterruptibly2() {
420	<	final Mutex lock = new Mutex();
421	<	try {
422	<	lock.acquireInterruptibly(1);
423	<	} catch(Exception e) {
424	<	unexpectedException();
425	<	}
426	<	Thread t = new Thread(new InterruptedLockRunnable(lock));
427	<	try {
391	<	t.start();
392	<	t.interrupt();
393	<	assertTrue(lock.isHeldExclusively());
394	<	t.join();
395	<	} catch(Exception e){
396	<	unexpectedException();
397	<	}
419	>	public void testAcquireInterruptibly2() throws InterruptedException {
420	>	final Mutex sync = new Mutex();
421	>	sync.acquireInterruptibly(1);
422	>	Thread t = new Thread(new InterruptedSyncRunnable(sync));
423	>	t.start();
424	>	Thread.sleep(SHORT_DELAY_MS);
425	>	t.interrupt();
426	>	assertTrue(sync.isHeldExclusively());
427	>	t.join();
428		}
429
430		/**
431	<	* owns is true for a condition created by lock else false
431	>	* owns is true for a condition created by sync else false
432		*/
433		public void testOwns() {
434	<	final Mutex lock = new Mutex();
435	<	final AbstractQueuedSynchronizer.ConditionObject c = lock.newCondition();
436	<	final Mutex lock2 = new Mutex();
437	<	assertTrue(lock.owns(c));
438	<	assertFalse(lock2.owns(c));
434	>	final Mutex sync = new Mutex();
435	>	final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition();
436	>	final Mutex sync2 = new Mutex();
437	>	assertTrue(sync.owns(c));
438	>	assertFalse(sync2.owns(c));
439		}
440
441		/**
442	<	* Calling await without holding lock throws IllegalMonitorStateException
442	>	* Calling await without holding sync throws IllegalMonitorStateException
443		*/
444	<	public void testAwait_IllegalMonitor() {
445	<	final Mutex lock = new Mutex();
446	<	final AbstractQueuedSynchronizer.ConditionObject c = lock.newCondition();
444	>	public void testAwait_IllegalMonitor() throws InterruptedException {
445	>	final Mutex sync = new Mutex();
446	>	final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition();
447		try {
448		c.await();
449		shouldThrow();
450	<	}
421	<	catch (IllegalMonitorStateException success) {
422	<	}
423	<	catch (Exception ex) {
424	<	unexpectedException();
425	<	}
450	>	} catch (IllegalMonitorStateException success) {}
451		}
452
453		/**
454	<	* Calling signal without holding lock throws IllegalMonitorStateException
454	>	* Calling signal without holding sync throws IllegalMonitorStateException
455		*/
456		public void testSignal_IllegalMonitor() {
457	<	final Mutex lock = new Mutex();
458	<	final AbstractQueuedSynchronizer.ConditionObject c = lock.newCondition();
457	>	final Mutex sync = new Mutex();
458	>	final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition();
459		try {
460		c.signal();
461		shouldThrow();
462	<	}
438	<	catch (IllegalMonitorStateException success) {
439	<	}
440	<	catch (Exception ex) {
441	<	unexpectedException();
442	<	}
462	>	} catch (IllegalMonitorStateException success) {}
463		}
464
465		/**
466		* awaitNanos without a signal times out
467		*/
468	<	public void testAwaitNanos_Timeout() {
469	<	final Mutex lock = new Mutex();
470	<	final AbstractQueuedSynchronizer.ConditionObject c = lock.newCondition();
471	<	try {
472	<	lock.acquire(1);
473	<	long t = c.awaitNanos(100);
474	<	assertTrue(t <= 0);
455	<	lock.release(1);
456	<	}
457	<	catch (Exception ex) {
458	<	unexpectedException();
459	<	}
468	>	public void testAwaitNanos_Timeout() throws InterruptedException {
469	>	final Mutex sync = new Mutex();
470	>	final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition();
471	>	sync.acquire(1);
472	>	long t = c.awaitNanos(100);
473	>	assertTrue(t <= 0);
474	>	sync.release(1);
475		}
476
477		/**
478	<	*  timed await without a signal times out
479	<	*/
480	<	public void testAwait_Timeout() {
481	<	final Mutex lock = new Mutex();
482	<	final AbstractQueuedSynchronizer.ConditionObject c = lock.newCondition();
483	<	try {
484	<	lock.acquire(1);
485	<	assertFalse(c.await(SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
471	<	lock.release(1);
472	<	}
473	<	catch (Exception ex) {
474	<	unexpectedException();
475	<	}
478	>	* Timed await without a signal times out
479	>	*/
480	>	public void testAwait_Timeout() throws InterruptedException {
481	>	final Mutex sync = new Mutex();
482	>	final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition();
483	>	sync.acquire(1);
484	>	assertFalse(c.await(SHORT_DELAY_MS, MILLISECONDS));
485	>	sync.release(1);
486		}
487
488		/**
489		* awaitUntil without a signal times out
490		*/
491	<	public void testAwaitUntil_Timeout() {
492	<	final Mutex lock = new Mutex();
493	<	final AbstractQueuedSynchronizer.ConditionObject c = lock.newCondition();
494	<	try {
495	<	lock.acquire(1);
496	<	java.util.Date d = new java.util.Date();
497	<	assertFalse(c.awaitUntil(new java.util.Date(d.getTime() + 10)));
488	<	lock.release(1);
489	<	}
490	<	catch (Exception ex) {
491	<	unexpectedException();
492	<	}
491	>	public void testAwaitUntil_Timeout() throws InterruptedException {
492	>	final Mutex sync = new Mutex();
493	>	final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition();
494	>	sync.acquire(1);
495	>	java.util.Date d = new java.util.Date();
496	>	assertFalse(c.awaitUntil(new java.util.Date(d.getTime() + 10)));
497	>	sync.release(1);
498		}
499
500		/**
501		* await returns when signalled
502		*/
503	<	public void testAwait() {
504	<	final Mutex lock = new Mutex();
505	<	final AbstractQueuedSynchronizer.ConditionObject c = lock.newCondition();
506	<	Thread t = new Thread(new Runnable() {
507	<	public void run() {
508	<	try {
509	<	lock.acquire(1);
510	<	c.await();
511	<	lock.release(1);
507	<	}
508	<	catch(InterruptedException e) {
509	<	threadUnexpectedException();
510	<	}
511	<	}
512	<	});
503	>	public void testAwait() throws InterruptedException {
504	>	final Mutex sync = new Mutex();
505	>	final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition();
506	>	Thread t = new Thread(new CheckedRunnable() {
507	>	public void realRun() throws InterruptedException {
508	>	sync.acquire(1);
509	>	c.await();
510	>	sync.release(1);
511	>	}});
512
513	<	try {
514	<	t.start();
515	<	Thread.sleep(SHORT_DELAY_MS);
516	<	lock.acquire(1);
517	<	c.signal();
518	<	lock.release(1);
519	<	t.join(SHORT_DELAY_MS);
521	<	assertFalse(t.isAlive());
522	<	}
523	<	catch (Exception ex) {
524	<	unexpectedException();
525	<	}
513	>	t.start();
514	>	Thread.sleep(SHORT_DELAY_MS);
515	>	sync.acquire(1);
516	>	c.signal();
517	>	sync.release(1);
518	>	t.join(SHORT_DELAY_MS);
519	>	assertFalse(t.isAlive());
520		}
521
522
#	Line 531 | Line 525 | public class AbstractQueuedSynchronizerT
525		* hasWaiters throws NPE if null
526		*/
527		public void testHasWaitersNPE() {
528	<	final Mutex lock = new Mutex();
528	>	final Mutex sync = new Mutex();
529		try {
530	<	lock.hasWaiters(null);
530	>	sync.hasWaiters(null);
531		shouldThrow();
532	<	} catch (NullPointerException success) {
539	<	} catch (Exception ex) {
540	<	unexpectedException();
541	<	}
532	>	} catch (NullPointerException success) {}
533		}
534
535		/**
536		* getWaitQueueLength throws NPE if null
537		*/
538		public void testGetWaitQueueLengthNPE() {
539	<	final Mutex lock = new Mutex();
539	>	final Mutex sync = new Mutex();
540		try {
541	<	lock.getWaitQueueLength(null);
541	>	sync.getWaitQueueLength(null);
542		shouldThrow();
543	<	} catch (NullPointerException success) {
553	<	} catch (Exception ex) {
554	<	unexpectedException();
555	<	}
543	>	} catch (NullPointerException success) {}
544		}
545
546
#	Line 560 | Line 548 | public class AbstractQueuedSynchronizerT
548		* getWaitingThreads throws NPE if null
549		*/
550		public void testGetWaitingThreadsNPE() {
551	<	final Mutex lock = new Mutex();
551	>	final Mutex sync = new Mutex();
552		try {
553	<	lock.getWaitingThreads(null);
553	>	sync.getWaitingThreads(null);
554		shouldThrow();
555	<	} catch (NullPointerException success) {
568	<	} catch (Exception ex) {
569	<	unexpectedException();
570	<	}
555	>	} catch (NullPointerException success) {}
556		}
557
558
#	Line 575 | Line 560 | public class AbstractQueuedSynchronizerT
560		* hasWaiters throws IAE if not owned
561		*/
562		public void testHasWaitersIAE() {
563	<	final Mutex lock = new Mutex();
564	<	final AbstractQueuedSynchronizer.ConditionObject c = (lock.newCondition());
565	<	final Mutex lock2 = new Mutex();
563	>	final Mutex sync = new Mutex();
564	>	final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition();
565	>	final Mutex sync2 = new Mutex();
566		try {
567	<	lock2.hasWaiters(c);
567	>	sync2.hasWaiters(c);
568		shouldThrow();
569	<	} catch (IllegalArgumentException success) {
585	<	} catch (Exception ex) {
586	<	unexpectedException();
587	<	}
569	>	} catch (IllegalArgumentException success) {}
570		}
571
572		/**
573	<	* hasWaiters throws IMSE if not locked
573	>	* hasWaiters throws IMSE if not synced
574		*/
575		public void testHasWaitersIMSE() {
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.hasWaiters(c);
579	>	sync.hasWaiters(c);
580		shouldThrow();
581	<	} catch (IllegalMonitorStateException success) {
600	<	} catch (Exception ex) {
601	<	unexpectedException();
602	<	}
581	>	} catch (IllegalMonitorStateException success) {}
582		}
583
584
#	Line 607 | Line 586 | public class AbstractQueuedSynchronizerT
586		* getWaitQueueLength throws IAE if not owned
587		*/
588		public void testGetWaitQueueLengthIAE() {
589	<	final Mutex lock = new Mutex();
590	<	final AbstractQueuedSynchronizer.ConditionObject c = (lock.newCondition());
591	<	final Mutex lock2 = new Mutex();
589	>	final Mutex sync = new Mutex();
590	>	final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition();
591	>	final Mutex sync2 = new Mutex();
592		try {
593	<	lock2.getWaitQueueLength(c);
593	>	sync2.getWaitQueueLength(c);
594		shouldThrow();
595	<	} catch (IllegalArgumentException success) {
617	<	} catch (Exception ex) {
618	<	unexpectedException();
619	<	}
595	>	} catch (IllegalArgumentException success) {}
596		}
597
598		/**
599	<	* getWaitQueueLength throws IMSE if not locked
599	>	* getWaitQueueLength throws IMSE if not synced
600		*/
601		public void testGetWaitQueueLengthIMSE() {
602	<	final Mutex lock = new Mutex();
603	<	final AbstractQueuedSynchronizer.ConditionObject c = (lock.newCondition());
602	>	final Mutex sync = new Mutex();
603	>	final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition();
604		try {
605	<	lock.getWaitQueueLength(c);
605	>	sync.getWaitQueueLength(c);
606		shouldThrow();
607	<	} catch (IllegalMonitorStateException success) {
632	<	} catch (Exception ex) {
633	<	unexpectedException();
634	<	}
607	>	} catch (IllegalMonitorStateException success) {}
608		}
609
610
#	Line 639 | Line 612 | public class AbstractQueuedSynchronizerT
612		* getWaitingThreads throws IAE if not owned
613		*/
614		public void testGetWaitingThreadsIAE() {
615	<	final Mutex lock = new Mutex();
616	<	final AbstractQueuedSynchronizer.ConditionObject c = (lock.newCondition());
617	<	final Mutex lock2 = new Mutex();
615	>	final Mutex sync = new Mutex();
616	>	final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition();
617	>	final Mutex sync2 = new Mutex();
618		try {
619	<	lock2.getWaitingThreads(c);
619	>	sync2.getWaitingThreads(c);
620		shouldThrow();
621	<	} catch (IllegalArgumentException success) {
649	<	} catch (Exception ex) {
650	<	unexpectedException();
651	<	}
621	>	} catch (IllegalArgumentException success) {}
622		}
623
624		/**
625	<	* getWaitingThreads throws IMSE if not locked
625	>	* getWaitingThreads throws IMSE if not synced
626		*/
627		public void testGetWaitingThreadsIMSE() {
628	<	final Mutex lock = new Mutex();
629	<	final AbstractQueuedSynchronizer.ConditionObject c = (lock.newCondition());
628	>	final Mutex sync = new Mutex();
629	>	final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition();
630		try {
631	<	lock.getWaitingThreads(c);
631	>	sync.getWaitingThreads(c);
632		shouldThrow();
633	<	} catch (IllegalMonitorStateException success) {
664	<	} catch (Exception ex) {
665	<	unexpectedException();
666	<	}
633	>	} catch (IllegalMonitorStateException success) {}
634		}
635
636
#	Line 671 | Line 638 | public class AbstractQueuedSynchronizerT
638		/**
639		* hasWaiters returns true when a thread is waiting, else false
640		*/
641	<	public void testHasWaiters() {
642	<	final Mutex lock = new Mutex();
643	<	final AbstractQueuedSynchronizer.ConditionObject c = lock.newCondition();
644	<	Thread t = new Thread(new Runnable() {
645	<	public void run() {
646	<	try {
647	<	lock.acquire(1);
648	<	threadAssertFalse(lock.hasWaiters(c));
649	<	threadAssertEquals(0, lock.getWaitQueueLength(c));
650	<	c.await();
651	<	lock.release(1);
685	<	}
686	<	catch(InterruptedException e) {
687	<	threadUnexpectedException();
688	<	}
689	<	}
690	<	});
641	>	public void testHasWaiters() throws InterruptedException {
642	>	final Mutex sync = new Mutex();
643	>	final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition();
644	>	Thread t = new Thread(new CheckedRunnable() {
645	>	public void realRun() throws InterruptedException {
646	>	sync.acquire(1);
647	>	assertFalse(sync.hasWaiters(c));
648	>	assertEquals(0, sync.getWaitQueueLength(c));
649	>	c.await();
650	>	sync.release(1);
651	>	}});
652
653	<	try {
654	<	t.start();
655	<	Thread.sleep(SHORT_DELAY_MS);
656	<	lock.acquire(1);
657	<	assertTrue(lock.hasWaiters(c));
658	<	assertEquals(1, lock.getWaitQueueLength(c));
659	<	c.signal();
660	<	lock.release(1);
661	<	Thread.sleep(SHORT_DELAY_MS);
662	<	lock.acquire(1);
663	<	assertFalse(lock.hasWaiters(c));
664	<	assertEquals(0, lock.getWaitQueueLength(c));
665	<	lock.release(1);
666	<	t.join(SHORT_DELAY_MS);
706	<	assertFalse(t.isAlive());
707	<	}
708	<	catch (Exception ex) {
709	<	unexpectedException();
710	<	}
653	>	t.start();
654	>	Thread.sleep(SHORT_DELAY_MS);
655	>	sync.acquire(1);
656	>	assertTrue(sync.hasWaiters(c));
657	>	assertEquals(1, sync.getWaitQueueLength(c));
658	>	c.signal();
659	>	sync.release(1);
660	>	Thread.sleep(SHORT_DELAY_MS);
661	>	sync.acquire(1);
662	>	assertFalse(sync.hasWaiters(c));
663	>	assertEquals(0, sync.getWaitQueueLength(c));
664	>	sync.release(1);
665	>	t.join(SHORT_DELAY_MS);
666	>	assertFalse(t.isAlive());
667		}
668
669		/**
670		* getWaitQueueLength returns number of waiting threads
671		*/
672	<	public void testGetWaitQueueLength() {
673	<	final Mutex lock = new Mutex();
674	<	final AbstractQueuedSynchronizer.ConditionObject c = lock.newCondition();
675	<	Thread t1 = new Thread(new Runnable() {
676	<	public void run() {
677	<	try {
678	<	lock.acquire(1);
679	<	threadAssertFalse(lock.hasWaiters(c));
680	<	threadAssertEquals(0, lock.getWaitQueueLength(c));
681	<	c.await();
682	<	lock.release(1);
683	<	}
684	<	catch(InterruptedException e) {
685	<	threadUnexpectedException();
686	<	}
687	<	}
688	<	});
689	<
690	<	Thread t2 = new Thread(new Runnable() {
691	<	public void run() {
692	<	try {
693	<	lock.acquire(1);
694	<	threadAssertTrue(lock.hasWaiters(c));
695	<	threadAssertEquals(1, lock.getWaitQueueLength(c));
696	<	c.await();
697	<	lock.release(1);
698	<	}
699	<	catch(InterruptedException e) {
700	<	threadUnexpectedException();
701	<	}
702	<	}
703	<	});
704	<
705	<	try {
706	<	t1.start();
707	<	Thread.sleep(SHORT_DELAY_MS);
708	<	t2.start();
709	<	Thread.sleep(SHORT_DELAY_MS);
710	<	lock.acquire(1);
755	<	assertTrue(lock.hasWaiters(c));
756	<	assertEquals(2, lock.getWaitQueueLength(c));
757	<	c.signalAll();
758	<	lock.release(1);
759	<	Thread.sleep(SHORT_DELAY_MS);
760	<	lock.acquire(1);
761	<	assertFalse(lock.hasWaiters(c));
762	<	assertEquals(0, lock.getWaitQueueLength(c));
763	<	lock.release(1);
764	<	t1.join(SHORT_DELAY_MS);
765	<	t2.join(SHORT_DELAY_MS);
766	<	assertFalse(t1.isAlive());
767	<	assertFalse(t2.isAlive());
768	<	}
769	<	catch (Exception ex) {
770	<	unexpectedException();
771	<	}
672	>	public void testGetWaitQueueLength() throws InterruptedException {
673	>	final Mutex sync = new Mutex();
674	>	final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition();
675	>	Thread t1 = new Thread(new CheckedRunnable() {
676	>	public void realRun() throws InterruptedException {
677	>	sync.acquire(1);
678	>	assertFalse(sync.hasWaiters(c));
679	>	assertEquals(0, sync.getWaitQueueLength(c));
680	>	c.await();
681	>	sync.release(1);
682	>	}});
683	>
684	>	Thread t2 = new Thread(new CheckedRunnable() {
685	>	public void realRun() throws InterruptedException {
686	>	sync.acquire(1);
687	>	assertTrue(sync.hasWaiters(c));
688	>	assertEquals(1, sync.getWaitQueueLength(c));
689	>	c.await();
690	>	sync.release(1);
691	>	}});
692	>
693	>	t1.start();
694	>	Thread.sleep(SHORT_DELAY_MS);
695	>	t2.start();
696	>	Thread.sleep(SHORT_DELAY_MS);
697	>	sync.acquire(1);
698	>	assertTrue(sync.hasWaiters(c));
699	>	assertEquals(2, sync.getWaitQueueLength(c));
700	>	c.signalAll();
701	>	sync.release(1);
702	>	Thread.sleep(SHORT_DELAY_MS);
703	>	sync.acquire(1);
704	>	assertFalse(sync.hasWaiters(c));
705	>	assertEquals(0, sync.getWaitQueueLength(c));
706	>	sync.release(1);
707	>	t1.join(SHORT_DELAY_MS);
708	>	t2.join(SHORT_DELAY_MS);
709	>	assertFalse(t1.isAlive());
710	>	assertFalse(t2.isAlive());
711		}
712
713		/**
714		* getWaitingThreads returns only and all waiting threads
715		*/
716	<	public void testGetWaitingThreads() {
717	<	final Mutex lock = new Mutex();
718	<	final AbstractQueuedSynchronizer.ConditionObject c = lock.newCondition();
719	<	Thread t1 = new Thread(new Runnable() {
720	<	public void run() {
721	<	try {
722	<	lock.acquire(1);
723	<	threadAssertTrue(lock.getWaitingThreads(c).isEmpty());
724	<	c.await();
725	<	lock.release(1);
726	<	}
727	<	catch(InterruptedException e) {
728	<	threadUnexpectedException();
729	<	}
730	<	}
731	<	});
732	<
733	<	Thread t2 = new Thread(new Runnable() {
734	<	public void run() {
735	<	try {
736	<	lock.acquire(1);
737	<	threadAssertFalse(lock.getWaitingThreads(c).isEmpty());
738	<	c.await();
739	<	lock.release(1);
740	<	}
741	<	catch(InterruptedException e) {
742	<	threadUnexpectedException();
743	<	}
744	<	}
745	<	});
746	<
747	<	try {
748	<	lock.acquire(1);
749	<	assertTrue(lock.getWaitingThreads(c).isEmpty());
750	<	lock.release(1);
751	<	t1.start();
752	<	Thread.sleep(SHORT_DELAY_MS);
753	<	t2.start();
754	<	Thread.sleep(SHORT_DELAY_MS);
755	<	lock.acquire(1);
756	<	assertTrue(lock.hasWaiters(c));
818	<	assertTrue(lock.getWaitingThreads(c).contains(t1));
819	<	assertTrue(lock.getWaitingThreads(c).contains(t2));
820	<	c.signalAll();
821	<	lock.release(1);
822	<	Thread.sleep(SHORT_DELAY_MS);
823	<	lock.acquire(1);
824	<	assertFalse(lock.hasWaiters(c));
825	<	assertTrue(lock.getWaitingThreads(c).isEmpty());
826	<	lock.release(1);
827	<	t1.join(SHORT_DELAY_MS);
828	<	t2.join(SHORT_DELAY_MS);
829	<	assertFalse(t1.isAlive());
830	<	assertFalse(t2.isAlive());
831	<	}
832	<	catch (Exception ex) {
833	<	unexpectedException();
834	<	}
716	>	public void testGetWaitingThreads() throws InterruptedException {
717	>	final Mutex sync = new Mutex();
718	>	final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition();
719	>	Thread t1 = new Thread(new CheckedRunnable() {
720	>	public void realRun() throws InterruptedException {
721	>	sync.acquire(1);
722	>	assertTrue(sync.getWaitingThreads(c).isEmpty());
723	>	c.await();
724	>	sync.release(1);
725	>	}});
726	>
727	>	Thread t2 = new Thread(new CheckedRunnable() {
728	>	public void realRun() throws InterruptedException {
729	>	sync.acquire(1);
730	>	assertFalse(sync.getWaitingThreads(c).isEmpty());
731	>	c.await();
732	>	sync.release(1);
733	>	}});
734	>
735	>	sync.acquire(1);
736	>	assertTrue(sync.getWaitingThreads(c).isEmpty());
737	>	sync.release(1);
738	>	t1.start();
739	>	Thread.sleep(SHORT_DELAY_MS);
740	>	t2.start();
741	>	Thread.sleep(SHORT_DELAY_MS);
742	>	sync.acquire(1);
743	>	assertTrue(sync.hasWaiters(c));
744	>	assertTrue(sync.getWaitingThreads(c).contains(t1));
745	>	assertTrue(sync.getWaitingThreads(c).contains(t2));
746	>	c.signalAll();
747	>	sync.release(1);
748	>	Thread.sleep(SHORT_DELAY_MS);
749	>	sync.acquire(1);
750	>	assertFalse(sync.hasWaiters(c));
751	>	assertTrue(sync.getWaitingThreads(c).isEmpty());
752	>	sync.release(1);
753	>	t1.join(SHORT_DELAY_MS);
754	>	t2.join(SHORT_DELAY_MS);
755	>	assertFalse(t1.isAlive());
756	>	assertFalse(t2.isAlive());
757		}
758
759
#	Line 839 | Line 761 | public class AbstractQueuedSynchronizerT
761		/**
762		* awaitUninterruptibly doesn't abort on interrupt
763		*/
764	<	public void testAwaitUninterruptibly() {
765	<	final Mutex lock = new Mutex();
766	<	final AbstractQueuedSynchronizer.ConditionObject c = lock.newCondition();
767	<	Thread t = new Thread(new Runnable() {
768	<	public void run() {
769	<	lock.acquire(1);
770	<	c.awaitUninterruptibly();
771	<	lock.release(1);
772	<	}
851	<	});
764	>	public void testAwaitUninterruptibly() throws InterruptedException {
765	>	final Mutex sync = new Mutex();
766	>	final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition();
767	>	Thread t = new Thread(new CheckedRunnable() {
768	>	public void realRun() {
769	>	sync.acquire(1);
770	>	c.awaitUninterruptibly();
771	>	sync.release(1);
772	>	}});
773
774	<	try {
775	<	t.start();
776	<	Thread.sleep(SHORT_DELAY_MS);
777	<	t.interrupt();
778	<	lock.acquire(1);
779	<	c.signal();
780	<	lock.release(1);
781	<	assert(t.isInterrupted());
861	<	t.join(SHORT_DELAY_MS);
862	<	assertFalse(t.isAlive());
863	<	}
864	<	catch (Exception ex) {
865	<	unexpectedException();
866	<	}
774	>	t.start();
775	>	Thread.sleep(SHORT_DELAY_MS);
776	>	t.interrupt();
777	>	sync.acquire(1);
778	>	c.signal();
779	>	sync.release(1);
780	>	t.join(SHORT_DELAY_MS);
781	>	assertFalse(t.isAlive());
782		}
783
784		/**
785		* await is interruptible
786		*/
787	<	public void testAwait_Interrupt() {
788	<	final Mutex lock = new Mutex();
789	<	final AbstractQueuedSynchronizer.ConditionObject c = lock.newCondition();
790	<	Thread t = new Thread(new Runnable() {
791	<	public void run() {
792	<	try {
793	<	lock.acquire(1);
794	<	c.await();
880	<	lock.release(1);
881	<	threadShouldThrow();
882	<	}
883	<	catch(InterruptedException success) {
884	<	}
885	<	}
886	<	});
787	>	public void testAwait_Interrupt() throws InterruptedException {
788	>	final Mutex sync = new Mutex();
789	>	final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition();
790	>	Thread t = new Thread(new CheckedInterruptedRunnable() {
791	>	public void realRun() throws InterruptedException {
792	>	sync.acquire(1);
793	>	c.await();
794	>	}});
795
796	<	try {
797	<	t.start();
798	<	Thread.sleep(SHORT_DELAY_MS);
799	<	t.interrupt();
800	<	t.join(SHORT_DELAY_MS);
893	<	assertFalse(t.isAlive());
894	<	}
895	<	catch (Exception ex) {
896	<	unexpectedException();
897	<	}
796	>	t.start();
797	>	Thread.sleep(SHORT_DELAY_MS);
798	>	t.interrupt();
799	>	t.join(SHORT_DELAY_MS);
800	>	assertFalse(t.isAlive());
801		}
802
803		/**
804		* awaitNanos is interruptible
805		*/
806	<	public void testAwaitNanos_Interrupt() {
807	<	final Mutex lock = new Mutex();
808	<	final AbstractQueuedSynchronizer.ConditionObject c = lock.newCondition();
809	<	Thread t = new Thread(new Runnable() {
810	<	public void run() {
811	<	try {
812	<	lock.acquire(1);
813	<	c.awaitNanos(1000 * 1000 * 1000); // 1 sec
911	<	lock.release(1);
912	<	threadShouldThrow();
913	<	}
914	<	catch(InterruptedException success) {
915	<	}
916	<	}
917	<	});
806	>	public void testAwaitNanos_Interrupt() throws InterruptedException {
807	>	final Mutex sync = new Mutex();
808	>	final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition();
809	>	Thread t = new Thread(new CheckedInterruptedRunnable() {
810	>	public void realRun() throws InterruptedException {
811	>	sync.acquire(1);
812	>	c.awaitNanos(MILLISECONDS.toNanos(LONG_DELAY_MS));
813	>	}});
814
815	<	try {
816	<	t.start();
817	<	Thread.sleep(SHORT_DELAY_MS);
818	<	t.interrupt();
819	<	t.join(SHORT_DELAY_MS);
924	<	assertFalse(t.isAlive());
925	<	}
926	<	catch (Exception ex) {
927	<	unexpectedException();
928	<	}
815	>	t.start();
816	>	Thread.sleep(SHORT_DELAY_MS);
817	>	t.interrupt();
818	>	t.join(SHORT_DELAY_MS);
819	>	assertFalse(t.isAlive());
820		}
821
822		/**
823		* awaitUntil is interruptible
824		*/
825	<	public void testAwaitUntil_Interrupt() {
826	<	final Mutex lock = new Mutex();
827	<	final AbstractQueuedSynchronizer.ConditionObject c = lock.newCondition();
828	<	Thread t = new Thread(new Runnable() {
829	<	public void run() {
830	<	try {
831	<	lock.acquire(1);
832	<	java.util.Date d = new java.util.Date();
833	<	c.awaitUntil(new java.util.Date(d.getTime() + 10000));
943	<	lock.release(1);
944	<	threadShouldThrow();
945	<	}
946	<	catch(InterruptedException success) {
947	<	}
948	<	}
949	<	});
825	>	public void testAwaitUntil_Interrupt() throws InterruptedException {
826	>	final Mutex sync = new Mutex();
827	>	final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition();
828	>	Thread t = new Thread(new CheckedInterruptedRunnable() {
829	>	public void realRun() throws InterruptedException {
830	>	sync.acquire(1);
831	>	java.util.Date d = new java.util.Date();
832	>	c.awaitUntil(new java.util.Date(d.getTime() + 10000));
833	>	}});
834
835	<	try {
836	<	t.start();
837	<	Thread.sleep(SHORT_DELAY_MS);
838	<	t.interrupt();
839	<	t.join(SHORT_DELAY_MS);
956	<	assertFalse(t.isAlive());
957	<	}
958	<	catch (Exception ex) {
959	<	unexpectedException();
960	<	}
835	>	t.start();
836	>	Thread.sleep(SHORT_DELAY_MS);
837	>	t.interrupt();
838	>	t.join(SHORT_DELAY_MS);
839	>	assertFalse(t.isAlive());
840		}
841
842		/**
843		* signalAll wakes up all threads
844		*/
845	<	public void testSignalAll() {
846	<	final Mutex lock = new Mutex();
847	<	final AbstractQueuedSynchronizer.ConditionObject c = lock.newCondition();
848	<	Thread t1 = new Thread(new Runnable() {
849	<	public void run() {
850	<	try {
851	<	lock.acquire(1);
852	<	c.await();
853	<	lock.release(1);
854	<	}
855	<	catch(InterruptedException e) {
856	<	threadUnexpectedException();
857	<	}
858	<	}
859	<	});
860	<
861	<	Thread t2 = new Thread(new Runnable() {
862	<	public void run() {
863	<	try {
864	<	lock.acquire(1);
865	<	c.await();
866	<	lock.release(1);
867	<	}
868	<	catch(InterruptedException e) {
869	<	threadUnexpectedException();
870	<	}
871	<	}
993	<	});
994	<
995	<	try {
996	<	t1.start();
997	<	t2.start();
998	<	Thread.sleep(SHORT_DELAY_MS);
999	<	lock.acquire(1);
1000	<	c.signalAll();
1001	<	lock.release(1);
1002	<	t1.join(SHORT_DELAY_MS);
1003	<	t2.join(SHORT_DELAY_MS);
1004	<	assertFalse(t1.isAlive());
1005	<	assertFalse(t2.isAlive());
1006	<	}
1007	<	catch (Exception ex) {
1008	<	unexpectedException();
1009	<	}
845	>	public void testSignalAll() throws InterruptedException {
846	>	final Mutex sync = new Mutex();
847	>	final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition();
848	>	Thread t1 = new Thread(new CheckedRunnable() {
849	>	public void realRun() throws InterruptedException {
850	>	sync.acquire(1);
851	>	c.await();
852	>	sync.release(1);
853	>	}});
854	>
855	>	Thread t2 = new Thread(new CheckedRunnable() {
856	>	public void realRun() throws InterruptedException {
857	>	sync.acquire(1);
858	>	c.await();
859	>	sync.release(1);
860	>	}});
861	>
862	>	t1.start();
863	>	t2.start();
864	>	Thread.sleep(SHORT_DELAY_MS);
865	>	sync.acquire(1);
866	>	c.signalAll();
867	>	sync.release(1);
868	>	t1.join(SHORT_DELAY_MS);
869	>	t2.join(SHORT_DELAY_MS);
870	>	assertFalse(t1.isAlive());
871	>	assertFalse(t2.isAlive());
872		}
873
874
#	Line 1014 | Line 876 | public class AbstractQueuedSynchronizerT
876		* toString indicates current state
877		*/
878		public void testToString() {
879	<	Mutex lock = new Mutex();
880	<	String us = lock.toString();
879	>	Mutex sync = new Mutex();
880	>	String us = sync.toString();
881		assertTrue(us.indexOf("State = 0") >= 0);
882	<	lock.acquire(1);
883	<	String ls = lock.toString();
882	>	sync.acquire(1);
883	>	String ls = sync.toString();
884		assertTrue(ls.indexOf("State = 1") >= 0);
885		}
886
887		/**
888		* A serialized AQS deserializes with current state
889		*/
890	<	public void testSerialization() {
890	>	public void testSerialization() throws Exception {
891		Mutex l = new Mutex();
892		l.acquire(1);
893		assertTrue(l.isHeldExclusively());
894
895	<	try {
896	<	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
897	<	ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
898	<	out.writeObject(l);
899	<	out.close();
900	<
901	<	ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
902	<	ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
903	<	Mutex r = (Mutex) in.readObject();
1042	<	assertTrue(r.isHeldExclusively());
1043	<	} catch(Exception e){
1044	<	e.printStackTrace();
1045	<	unexpectedException();
1046	<	}
895	>	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
896	>	ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
897	>	out.writeObject(l);
898	>	out.close();
899	>
900	>	ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
901	>	ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
902	>	Mutex r = (Mutex) in.readObject();
903	>	assertTrue(r.isHeldExclusively());
904		}
905
906
#	Line 1051 | Line 908 | public class AbstractQueuedSynchronizerT
908		* tryReleaseShared setting state changes getState
909		*/
910		public void testGetStateWithReleaseShared() {
911	<	final BooleanLatch l = new BooleanLatch();
912	<	assertFalse(l.isSignalled());
913	<	l.releaseShared(0);
914	<	assertTrue(l.isSignalled());
911	>	final BooleanLatch l = new BooleanLatch();
912	>	assertFalse(l.isSignalled());
913	>	l.releaseShared(0);
914	>	assertTrue(l.isSignalled());
915		}
916
917		/**
918	<	* release and has no effect when already signalled
918	>	* releaseShared has no effect when already signalled
919		*/
920		public void testReleaseShared() {
921	<	final BooleanLatch l = new BooleanLatch();
922	<	assertFalse(l.isSignalled());
923	<	l.releaseShared(0);
924	<	assertTrue(l.isSignalled());
925	<	l.releaseShared(0);
926	<	assertTrue(l.isSignalled());
921	>	final BooleanLatch l = new BooleanLatch();
922	>	assertFalse(l.isSignalled());
923	>	l.releaseShared(0);
924	>	assertTrue(l.isSignalled());
925	>	l.releaseShared(0);
926	>	assertTrue(l.isSignalled());
927		}
928
929		/**
930		* acquireSharedInterruptibly returns after release, but not before
931		*/
932	<	public void testAcquireSharedInterruptibly() {
933	<	final BooleanLatch l = new BooleanLatch();
932	>	public void testAcquireSharedInterruptibly() throws InterruptedException {
933	>	final BooleanLatch l = new BooleanLatch();
934
935	<	Thread t = new Thread(new Runnable() {
936	<	public void run() {
937	<	try {
938	<	threadAssertFalse(l.isSignalled());
939	<	l.acquireSharedInterruptibly(0);
940	<	threadAssertTrue(l.isSignalled());
941	<	} catch(InterruptedException e){
942	<	threadUnexpectedException();
943	<	}
944	<	}
945	<	});
946	<	try {
947	<	t.start();
1091	<	assertFalse(l.isSignalled());
1092	<	Thread.sleep(SHORT_DELAY_MS);
1093	<	l.releaseShared(0);
1094	<	assertTrue(l.isSignalled());
1095	<	t.join();
1096	<	} catch (InterruptedException e){
1097	<	unexpectedException();
1098	<	}
935	>	Thread t = new Thread(new CheckedRunnable() {
936	>	public void realRun() throws InterruptedException {
937	>	assertFalse(l.isSignalled());
938	>	l.acquireSharedInterruptibly(0);
939	>	assertTrue(l.isSignalled());
940	>	}});
941	>
942	>	t.start();
943	>	assertFalse(l.isSignalled());
944	>	Thread.sleep(SHORT_DELAY_MS);
945	>	l.releaseShared(0);
946	>	assertTrue(l.isSignalled());
947	>	t.join();
948		}
949	<
949	>
950
951		/**
952		* acquireSharedTimed returns after release
953		*/
954	<	public void testAsquireSharedTimed() {
955	<	final BooleanLatch l = new BooleanLatch();
954	>	public void testAcquireSharedTimed() throws InterruptedException {
955	>	final BooleanLatch l = new BooleanLatch();
956
957	<	Thread t = new Thread(new Runnable() {
958	<	public void run() {
959	<	try {
960	<	threadAssertFalse(l.isSignalled());
961	<	threadAssertTrue(l.tryAcquireSharedNanos(0, MEDIUM_DELAY_MS* 1000 * 1000));
962	<	threadAssertTrue(l.isSignalled());
963	<
964	<	} catch(InterruptedException e){
965	<	threadUnexpectedException();
966	<	}
967	<	}
968	<	});
969	<	try {
970	<	t.start();
1122	<	assertFalse(l.isSignalled());
1123	<	Thread.sleep(SHORT_DELAY_MS);
1124	<	l.releaseShared(0);
1125	<	assertTrue(l.isSignalled());
1126	<	t.join();
1127	<	} catch (InterruptedException e){
1128	<	unexpectedException();
1129	<	}
957	>	Thread t = new Thread(new CheckedRunnable() {
958	>	public void realRun() throws InterruptedException {
959	>	assertFalse(l.isSignalled());
960	>	long nanos = MILLISECONDS.toNanos(MEDIUM_DELAY_MS);
961	>	assertTrue(l.tryAcquireSharedNanos(0, nanos));
962	>	assertTrue(l.isSignalled());
963	>	}});
964	>
965	>	t.start();
966	>	assertFalse(l.isSignalled());
967	>	Thread.sleep(SHORT_DELAY_MS);
968	>	l.releaseShared(0);
969	>	assertTrue(l.isSignalled());
970	>	t.join();
971		}
972	<
972	>
973		/**
974		* acquireSharedInterruptibly throws IE if interrupted before released
975		*/
976	<	public void testAcquireSharedInterruptibly_InterruptedException() {
976	>	public void testAcquireSharedInterruptibly_InterruptedException() throws InterruptedException {
977		final BooleanLatch l = new BooleanLatch();
978	<	Thread t = new Thread(new Runnable() {
979	<	public void run() {
980	<	try {
981	<	threadAssertFalse(l.isSignalled());
982	<	l.acquireSharedInterruptibly(0);
983	<	threadShouldThrow();
984	<	} catch(InterruptedException success){}
985	<	}
986	<	});
987	<	t.start();
1147	<	try {
1148	<	assertFalse(l.isSignalled());
1149	<	t.interrupt();
1150	<	t.join();
1151	<	} catch (InterruptedException e){
1152	<	unexpectedException();
1153	<	}
978	>	Thread t = new Thread(new CheckedInterruptedRunnable() {
979	>	public void realRun() throws InterruptedException {
980	>	assertFalse(l.isSignalled());
981	>	l.acquireSharedInterruptibly(0);
982	>	}});
983	>
984	>	t.start();
985	>	assertFalse(l.isSignalled());
986	>	t.interrupt();
987	>	t.join();
988		}
989
990		/**
991		* acquireSharedTimed throws IE if interrupted before released
992		*/
993	<	public void testAcquireSharedNanos_InterruptedException() {
993	>	public void testAcquireSharedNanos_InterruptedException() throws InterruptedException {
994		final BooleanLatch l = new BooleanLatch();
995	<	Thread t = new Thread(new Runnable() {
996	<	public void run() {
997	<	try {
998	<	threadAssertFalse(l.isSignalled());
999	<	l.tryAcquireSharedNanos(0, SMALL_DELAY_MS* 1000 * 1000);
1000	<	threadShouldThrow();
1001	<	} catch(InterruptedException success){}
1168	<	}
1169	<	});
995	>	Thread t = new Thread(new CheckedInterruptedRunnable() {
996	>	public void realRun() throws InterruptedException {
997	>	assertFalse(l.isSignalled());
998	>	long nanos = MILLISECONDS.toNanos(SMALL_DELAY_MS);
999	>	l.tryAcquireSharedNanos(0, nanos);
1000	>	}});
1001	>
1002		t.start();
1003	<	try {
1004	<	Thread.sleep(SHORT_DELAY_MS);
1005	<	assertFalse(l.isSignalled());
1006	<	t.interrupt();
1175	<	t.join();
1176	<	} catch (InterruptedException e){
1177	<	unexpectedException();
1178	<	}
1003	>	Thread.sleep(SHORT_DELAY_MS);
1004	>	assertFalse(l.isSignalled());
1005	>	t.interrupt();
1006	>	t.join();
1007		}
1008
1009		/**
1010		* acquireSharedTimed times out if not released before timeout
1011		*/
1012	<	public void testAcquireSharedNanos_Timeout() {
1012	>	public void testAcquireSharedNanos_Timeout() throws InterruptedException {
1013		final BooleanLatch l = new BooleanLatch();
1014	<	Thread t = new Thread(new Runnable() {
1015	<	public void run() {
1016	<	try {
1017	<	threadAssertFalse(l.isSignalled());
1018	<	threadAssertFalse(l.tryAcquireSharedNanos(0, SMALL_DELAY_MS* 1000 * 1000));
1019	<	} catch(InterruptedException ie){
1020	<	threadUnexpectedException();
1193	<	}
1194	<	}
1195	<	});
1014	>	Thread t = new Thread(new CheckedRunnable() {
1015	>	public void realRun() throws InterruptedException {
1016	>	assertFalse(l.isSignalled());
1017	>	long nanos = MILLISECONDS.toNanos(SMALL_DELAY_MS);
1018	>	assertFalse(l.tryAcquireSharedNanos(0, nanos));
1019	>	}});
1020	>
1021		t.start();
1022	<	try {
1023	<	Thread.sleep(SHORT_DELAY_MS);
1024	<	assertFalse(l.isSignalled());
1200	<	t.join();
1201	<	} catch (InterruptedException e){
1202	<	unexpectedException();
1203	<	}
1022	>	Thread.sleep(SHORT_DELAY_MS);
1023	>	assertFalse(l.isSignalled());
1024	>	t.join();
1025		}
1026
1206	–
1027		}

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