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Comparing jsr166/src/test/tck/AbstractQueuedLongSynchronizerTest.java (file contents):
Revision 1.9 by jsr166, Wed Nov 18 08:22:57 2009 UTC vs.
Revision 1.39 by jsr166, Sun May 14 02:20:48 2017 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
4	>	* http://creativecommons.org/publicdomain/zero/1.0/
5		* Other contributors include Andrew Wright, Jeffrey Hayes,
6		* Pat Fisher, Mike Judd.
7		*/
8
9	+	import static java.util.concurrent.TimeUnit.MILLISECONDS;
10	+	import static java.util.concurrent.TimeUnit.NANOSECONDS;
11
12	<	import junit.framework.*;
13	<	import java.util.*;
14	<	import java.util.concurrent.*;
15	<	import java.util.concurrent.locks.*;
16	<	import java.io.*;
12	>	import java.util.Arrays;
13	>	import java.util.Collection;
14	>	import java.util.HashSet;
15	>	import java.util.concurrent.locks.AbstractQueuedLongSynchronizer;
16	>	import java.util.concurrent.locks.AbstractQueuedLongSynchronizer.ConditionObject;
17	>
18	>	import junit.framework.AssertionFailedError;
19	>	import junit.framework.Test;
20	>	import junit.framework.TestSuite;
21
22		public class AbstractQueuedLongSynchronizerTest extends JSR166TestCase {
23		public static void main(String[] args) {
24	<	junit.textui.TestRunner.run (suite());
24	>	main(suite(), args);
25		}
26		public static Test suite() {
27		return new TestSuite(AbstractQueuedLongSynchronizerTest.class);
28		}
29
30		/**
31	<	* A simple mutex class, adapted from the
32	<	* AbstractQueuedLongSynchronizer javadoc.  Exclusive acquire tests
27	<	* exercise this as a sample user extension.  Other
28	<	* methods/features of AbstractQueuedLongSynchronizerTest are tested
29	<	* via other test classes, including those for ReentrantLock,
30	<	* ReentrantReadWriteLock, and Semaphore
31	>	* A simple mutex class, adapted from the class javadoc.  Exclusive
32	>	* acquire tests exercise this as a sample user extension.
33		*/
34		static class Mutex extends AbstractQueuedLongSynchronizer {
35	<	// Use value > 32 bits for locked state
36	<	static final long LOCKED = 1 << 48;
35	>	/** An eccentric value > 32 bits for locked synchronizer state. */
36	>	static final long LOCKED = (1L << 63) | (1L << 15);
37	>
38	>	static final long UNLOCKED = 0;
39	>
40		public boolean isHeldExclusively() {
41	<	return getState() == LOCKED;
41	>	long state = getState();
42	>	assertTrue(state == UNLOCKED || state == LOCKED);
43	>	return state == LOCKED;
44		}
45
46		public boolean tryAcquire(long acquires) {
47	<	return compareAndSetState(0, LOCKED);
47	>	assertEquals(LOCKED, acquires);
48	>	return compareAndSetState(UNLOCKED, LOCKED);
49		}
50
51		public boolean tryRelease(long releases) {
52	<	if (getState() == 0) throw new IllegalMonitorStateException();
53	<	setState(0);
52	>	if (getState() != LOCKED) throw new IllegalMonitorStateException();
53	>	setState(UNLOCKED);
54		return true;
55		}
56
57	<	public AbstractQueuedLongSynchronizer.ConditionObject newCondition() { return new AbstractQueuedLongSynchronizer.ConditionObject(); }
57	>	public boolean tryAcquireNanos(long nanos) throws InterruptedException {
58	>	return tryAcquireNanos(LOCKED, nanos);
59	>	}
60
61	<	}
61	>	public boolean tryAcquire() {
62	>	return tryAcquire(LOCKED);
63	>	}
64
65	+	public boolean tryRelease() {
66	+	return tryRelease(LOCKED);
67	+	}
68	+
69	+	public void acquire() {
70	+	acquire(LOCKED);
71	+	}
72	+
73	+	public void acquireInterruptibly() throws InterruptedException {
74	+	acquireInterruptibly(LOCKED);
75	+	}
76	+
77	+	public void release() {
78	+	release(LOCKED);
79	+	}
80	+
81	+	public ConditionObject newCondition() {
82	+	return new ConditionObject();
83	+	}
84	+	}
85
86		/**
87		* A simple latch class, to test shared mode.
#	Line 58 | Line 90 | public class AbstractQueuedLongSynchroni
90		public boolean isSignalled() { return getState() != 0; }
91
92		public long tryAcquireShared(long ignore) {
93	<	return isSignalled()? 1 : -1;
93	>	return isSignalled() ? 1 : -1;
94		}
95
96		public boolean tryReleaseShared(long ignore) {
97	<	setState(1 << 62);
97	>	setState(1L << 62);
98		return true;
99		}
100		}
101
102		/**
103	<	* A runnable calling acquireInterruptibly
103	>	* A runnable calling acquireInterruptibly that does not expect to
104	>	* be interrupted.
105		*/
106	<	class InterruptibleSyncRunnable implements Runnable {
106	>	class InterruptibleSyncRunnable extends CheckedRunnable {
107		final Mutex sync;
108	<	InterruptibleSyncRunnable(Mutex l) { sync = l; }
109	<	public void run() {
110	<	try {
78	<	sync.acquireInterruptibly(1);
79	<	} catch (InterruptedException success) {}
108	>	InterruptibleSyncRunnable(Mutex sync) { this.sync = sync; }
109	>	public void realRun() throws InterruptedException {
110	>	sync.acquireInterruptibly();
111		}
112		}
113
83	–
114		/**
115		* A runnable calling acquireInterruptibly that expects to be
116	<	* interrupted
116	>	* interrupted.
117		*/
118	<	class InterruptedSyncRunnable implements Runnable {
118	>	class InterruptedSyncRunnable extends CheckedInterruptedRunnable {
119		final Mutex sync;
120	<	InterruptedSyncRunnable(Mutex l) { sync = l; }
121	<	public void run() {
122	<	try {
123	<	sync.acquireInterruptibly(1);
124	<	threadShouldThrow();
125	<	} catch (InterruptedException success) {}
120	>	InterruptedSyncRunnable(Mutex sync) { this.sync = sync; }
121	>	public void realRun() throws InterruptedException {
122	>	sync.acquireInterruptibly();
123	>	}
124	>	}
125	>
126	>	/** A constant to clarify calls to checking methods below. */
127	>	static final Thread[] NO_THREADS = new Thread[0];
128	>
129	>	/**
130	>	* Spin-waits until sync.isQueued(t) becomes true.
131	>	*/
132	>	void waitForQueuedThread(AbstractQueuedLongSynchronizer sync,
133	>	Thread t) {
134	>	long startTime = System.nanoTime();
135	>	while (!sync.isQueued(t)) {
136	>	if (millisElapsedSince(startTime) > LONG_DELAY_MS)
137	>	throw new AssertionFailedError("timed out");
138	>	Thread.yield();
139	>	}
140	>	assertTrue(t.isAlive());
141	>	}
142	>
143	>	/**
144	>	* Checks that sync has exactly the given queued threads.
145	>	*/
146	>	void assertHasQueuedThreads(AbstractQueuedLongSynchronizer sync,
147	>	Thread... expected) {
148	>	Collection<Thread> actual = sync.getQueuedThreads();
149	>	assertEquals(expected.length > 0, sync.hasQueuedThreads());
150	>	assertEquals(expected.length, sync.getQueueLength());
151	>	assertEquals(expected.length, actual.size());
152	>	assertEquals(expected.length == 0, actual.isEmpty());
153	>	assertEquals(new HashSet<Thread>(actual),
154	>	new HashSet<Thread>(Arrays.asList(expected)));
155	>	}
156	>
157	>	/**
158	>	* Checks that sync has exactly the given (exclusive) queued threads.
159	>	*/
160	>	void assertHasExclusiveQueuedThreads(AbstractQueuedLongSynchronizer sync,
161	>	Thread... expected) {
162	>	assertHasQueuedThreads(sync, expected);
163	>	assertEquals(new HashSet<Thread>(sync.getExclusiveQueuedThreads()),
164	>	new HashSet<Thread>(sync.getQueuedThreads()));
165	>	assertEquals(0, sync.getSharedQueuedThreads().size());
166	>	assertTrue(sync.getSharedQueuedThreads().isEmpty());
167	>	}
168	>
169	>	/**
170	>	* Checks that sync has exactly the given (shared) queued threads.
171	>	*/
172	>	void assertHasSharedQueuedThreads(AbstractQueuedLongSynchronizer sync,
173	>	Thread... expected) {
174	>	assertHasQueuedThreads(sync, expected);
175	>	assertEquals(new HashSet<Thread>(sync.getSharedQueuedThreads()),
176	>	new HashSet<Thread>(sync.getQueuedThreads()));
177	>	assertEquals(0, sync.getExclusiveQueuedThreads().size());
178	>	assertTrue(sync.getExclusiveQueuedThreads().isEmpty());
179	>	}
180	>
181	>	/**
182	>	* Checks that condition c has exactly the given waiter threads,
183	>	* after acquiring mutex.
184	>	*/
185	>	void assertHasWaitersUnlocked(Mutex sync, ConditionObject c,
186	>	Thread... threads) {
187	>	sync.acquire();
188	>	assertHasWaitersLocked(sync, c, threads);
189	>	sync.release();
190	>	}
191	>
192	>	/**
193	>	* Checks that condition c has exactly the given waiter threads.
194	>	*/
195	>	void assertHasWaitersLocked(Mutex sync, ConditionObject c,
196	>	Thread... threads) {
197	>	assertEquals(threads.length > 0, sync.hasWaiters(c));
198	>	assertEquals(threads.length, sync.getWaitQueueLength(c));
199	>	assertEquals(threads.length == 0, sync.getWaitingThreads(c).isEmpty());
200	>	assertEquals(threads.length, sync.getWaitingThreads(c).size());
201	>	assertEquals(new HashSet<Thread>(sync.getWaitingThreads(c)),
202	>	new HashSet<Thread>(Arrays.asList(threads)));
203	>	}
204	>
205	>	enum AwaitMethod { await, awaitTimed, awaitNanos, awaitUntil }
206	>
207	>	/**
208	>	* Awaits condition using the specified AwaitMethod.
209	>	*/
210	>	void await(ConditionObject c, AwaitMethod awaitMethod)
211	>	throws InterruptedException {
212	>	long timeoutMillis = 2 * LONG_DELAY_MS;
213	>	switch (awaitMethod) {
214	>	case await:
215	>	c.await();
216	>	break;
217	>	case awaitTimed:
218	>	assertTrue(c.await(timeoutMillis, MILLISECONDS));
219	>	break;
220	>	case awaitNanos:
221	>	long nanosTimeout = MILLISECONDS.toNanos(timeoutMillis);
222	>	long nanosRemaining = c.awaitNanos(nanosTimeout);
223	>	assertTrue(nanosRemaining > 0);
224	>	break;
225	>	case awaitUntil:
226	>	assertTrue(c.awaitUntil(delayedDate(timeoutMillis)));
227	>	break;
228	>	default:
229	>	throw new AssertionError();
230		}
231		}
232
233		/**
234	+	* Checks that awaiting the given condition times out (using the
235	+	* default timeout duration).
236	+	*/
237	+	void assertAwaitTimesOut(ConditionObject c, AwaitMethod awaitMethod) {
238	+	final long timeoutMillis = timeoutMillis();
239	+	final long startTime;
240	+	try {
241	+	switch (awaitMethod) {
242	+	case awaitTimed:
243	+	startTime = System.nanoTime();
244	+	assertFalse(c.await(timeoutMillis, MILLISECONDS));
245	+	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
246	+	break;
247	+	case awaitNanos:
248	+	startTime = System.nanoTime();
249	+	long nanosTimeout = MILLISECONDS.toNanos(timeoutMillis);
250	+	long nanosRemaining = c.awaitNanos(nanosTimeout);
251	+	assertTrue(nanosRemaining <= 0);
252	+	assertTrue(nanosRemaining > -MILLISECONDS.toNanos(LONG_DELAY_MS));
253	+	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
254	+	break;
255	+	case awaitUntil:
256	+	// We shouldn't assume that nanoTime and currentTimeMillis
257	+	// use the same time source, so don't use nanoTime here.
258	+	java.util.Date delayedDate = delayedDate(timeoutMillis);
259	+	assertFalse(c.awaitUntil(delayedDate(timeoutMillis)));
260	+	assertTrue(new java.util.Date().getTime() >= delayedDate.getTime());
261	+	break;
262	+	default:
263	+	throw new UnsupportedOperationException();
264	+	}
265	+	} catch (InterruptedException ie) { threadUnexpectedException(ie); }
266	+	}
267	+
268	+	/**
269		* isHeldExclusively is false upon construction
270		*/
271		public void testIsHeldExclusively() {
272	<	Mutex rl = new Mutex();
273	<	assertFalse(rl.isHeldExclusively());
272	>	Mutex sync = new Mutex();
273	>	assertFalse(sync.isHeldExclusively());
274		}
275
276		/**
277		* acquiring released sync succeeds
278		*/
279		public void testAcquire() {
280	<	Mutex rl = new Mutex();
281	<	rl.acquire(1);
282	<	assertTrue(rl.isHeldExclusively());
283	<	rl.release(1);
284	<	assertFalse(rl.isHeldExclusively());
280	>	Mutex sync = new Mutex();
281	>	sync.acquire();
282	>	assertTrue(sync.isHeldExclusively());
283	>	sync.release();
284	>	assertFalse(sync.isHeldExclusively());
285		}
286
287		/**
288	<	* tryAcquire on an released sync succeeds
288	>	* tryAcquire on a released sync succeeds
289		*/
290		public void testTryAcquire() {
291	<	Mutex rl = new Mutex();
292	<	assertTrue(rl.tryAcquire(1));
293	<	assertTrue(rl.isHeldExclusively());
294	<	rl.release(1);
291	>	Mutex sync = new Mutex();
292	>	assertTrue(sync.tryAcquire());
293	>	assertTrue(sync.isHeldExclusively());
294	>	sync.release();
295	>	assertFalse(sync.isHeldExclusively());
296		}
297
298		/**
299		* hasQueuedThreads reports whether there are waiting threads
300		*/
301	<	public void testhasQueuedThreads() throws InterruptedException {
302	<	final Mutex sync = new Mutex();
133	<	Thread t1 = new Thread(new InterruptedSyncRunnable(sync));
134	<	Thread t2 = new Thread(new InterruptibleSyncRunnable(sync));
301	>	public void testHasQueuedThreads() {
302	>	final Mutex sync = new Mutex();
303		assertFalse(sync.hasQueuedThreads());
304	<	sync.acquire(1);
305	<	t1.start();
306	<	Thread.sleep(SHORT_DELAY_MS);
304	>	sync.acquire();
305	>	Thread t1 = newStartedThread(new InterruptedSyncRunnable(sync));
306	>	waitForQueuedThread(sync, t1);
307		assertTrue(sync.hasQueuedThreads());
308	<	t2.start();
309	<	Thread.sleep(SHORT_DELAY_MS);
308	>	Thread t2 = newStartedThread(new InterruptibleSyncRunnable(sync));
309	>	waitForQueuedThread(sync, t2);
310		assertTrue(sync.hasQueuedThreads());
311		t1.interrupt();
312	<	Thread.sleep(SHORT_DELAY_MS);
312	>	awaitTermination(t1);
313		assertTrue(sync.hasQueuedThreads());
314	<	sync.release(1);
315	<	Thread.sleep(SHORT_DELAY_MS);
314	>	sync.release();
315	>	awaitTermination(t2);
316		assertFalse(sync.hasQueuedThreads());
149	–	t1.join();
150	–	t2.join();
317		}
318
319		/**
320	<	* isQueued(null) throws NPE
320	>	* isQueued(null) throws NullPointerException
321		*/
322		public void testIsQueuedNPE() {
323	<	final Mutex sync = new Mutex();
323	>	final Mutex sync = new Mutex();
324		try {
325		sync.isQueued(null);
326		shouldThrow();
#	Line 162 | Line 328 | public class AbstractQueuedLongSynchroni
328		}
329
330		/**
331	<	* isQueued reports whether a thread is queued.
331	>	* isQueued reports whether a thread is queued
332		*/
333	<	public void testIsQueued() throws InterruptedException {
334	<	final Mutex sync = new Mutex();
333	>	public void testIsQueued() {
334	>	final Mutex sync = new Mutex();
335		Thread t1 = new Thread(new InterruptedSyncRunnable(sync));
336		Thread t2 = new Thread(new InterruptibleSyncRunnable(sync));
337		assertFalse(sync.isQueued(t1));
338		assertFalse(sync.isQueued(t2));
339	<	sync.acquire(1);
339	>	sync.acquire();
340		t1.start();
341	<	Thread.sleep(SHORT_DELAY_MS);
341	>	waitForQueuedThread(sync, t1);
342		assertTrue(sync.isQueued(t1));
343	+	assertFalse(sync.isQueued(t2));
344		t2.start();
345	<	Thread.sleep(SHORT_DELAY_MS);
345	>	waitForQueuedThread(sync, t2);
346		assertTrue(sync.isQueued(t1));
347		assertTrue(sync.isQueued(t2));
348		t1.interrupt();
349	<	Thread.sleep(SHORT_DELAY_MS);
349	>	awaitTermination(t1);
350		assertFalse(sync.isQueued(t1));
351		assertTrue(sync.isQueued(t2));
352	<	sync.release(1);
353	<	Thread.sleep(SHORT_DELAY_MS);
352	>	sync.release();
353	>	awaitTermination(t2);
354		assertFalse(sync.isQueued(t1));
188	–	Thread.sleep(SHORT_DELAY_MS);
355		assertFalse(sync.isQueued(t2));
190	–	t1.join();
191	–	t2.join();
356		}
357
358		/**
359		* getFirstQueuedThread returns first waiting thread or null if none
360		*/
361	<	public void testGetFirstQueuedThread() throws InterruptedException {
362	<	final Mutex sync = new Mutex();
199	<	Thread t1 = new Thread(new InterruptedSyncRunnable(sync));
200	<	Thread t2 = new Thread(new InterruptibleSyncRunnable(sync));
361	>	public void testGetFirstQueuedThread() {
362	>	final Mutex sync = new Mutex();
363		assertNull(sync.getFirstQueuedThread());
364	<	sync.acquire(1);
365	<	t1.start();
366	<	Thread.sleep(SHORT_DELAY_MS);
364	>	sync.acquire();
365	>	Thread t1 = newStartedThread(new InterruptedSyncRunnable(sync));
366	>	waitForQueuedThread(sync, t1);
367		assertEquals(t1, sync.getFirstQueuedThread());
368	<	t2.start();
369	<	Thread.sleep(SHORT_DELAY_MS);
368	>	Thread t2 = newStartedThread(new InterruptibleSyncRunnable(sync));
369	>	waitForQueuedThread(sync, t2);
370		assertEquals(t1, sync.getFirstQueuedThread());
371		t1.interrupt();
372	<	Thread.sleep(SHORT_DELAY_MS);
211	<	Thread.sleep(SHORT_DELAY_MS);
372	>	awaitTermination(t1);
373		assertEquals(t2, sync.getFirstQueuedThread());
374	<	sync.release(1);
375	<	Thread.sleep(SHORT_DELAY_MS);
374	>	sync.release();
375	>	awaitTermination(t2);
376		assertNull(sync.getFirstQueuedThread());
216	–	t1.join();
217	–	t2.join();
377		}
378
220	–
379		/**
380		* hasContended reports false if no thread has ever blocked, else true
381		*/
382	<	public void testHasContended() throws InterruptedException {
383	<	final Mutex sync = new Mutex();
226	<	Thread t1 = new Thread(new InterruptedSyncRunnable(sync));
227	<	Thread t2 = new Thread(new InterruptibleSyncRunnable(sync));
382	>	public void testHasContended() {
383	>	final Mutex sync = new Mutex();
384		assertFalse(sync.hasContended());
385	<	sync.acquire(1);
386	<	t1.start();
387	<	Thread.sleep(SHORT_DELAY_MS);
385	>	sync.acquire();
386	>	assertFalse(sync.hasContended());
387	>	Thread t1 = newStartedThread(new InterruptedSyncRunnable(sync));
388	>	waitForQueuedThread(sync, t1);
389		assertTrue(sync.hasContended());
390	<	t2.start();
391	<	Thread.sleep(SHORT_DELAY_MS);
390	>	Thread t2 = newStartedThread(new InterruptibleSyncRunnable(sync));
391	>	waitForQueuedThread(sync, t2);
392		assertTrue(sync.hasContended());
393		t1.interrupt();
394	<	Thread.sleep(SHORT_DELAY_MS);
394	>	awaitTermination(t1);
395		assertTrue(sync.hasContended());
396	<	sync.release(1);
397	<	Thread.sleep(SHORT_DELAY_MS);
396	>	sync.release();
397	>	awaitTermination(t2);
398		assertTrue(sync.hasContended());
242	–	t1.join();
243	–	t2.join();
399		}
400
401		/**
402	<	* getQueuedThreads includes waiting threads
402	>	* getQueuedThreads returns all waiting threads
403		*/
404	<	public void testGetQueuedThreads() throws InterruptedException {
405	<	final Mutex sync = new Mutex();
404	>	public void testGetQueuedThreads() {
405	>	final Mutex sync = new Mutex();
406		Thread t1 = new Thread(new InterruptedSyncRunnable(sync));
407		Thread t2 = new Thread(new InterruptibleSyncRunnable(sync));
408	<	assertTrue(sync.getQueuedThreads().isEmpty());
409	<	sync.acquire(1);
410	<	assertTrue(sync.getQueuedThreads().isEmpty());
408	>	assertHasExclusiveQueuedThreads(sync, NO_THREADS);
409	>	sync.acquire();
410	>	assertHasExclusiveQueuedThreads(sync, NO_THREADS);
411		t1.start();
412	<	Thread.sleep(SHORT_DELAY_MS);
412	>	waitForQueuedThread(sync, t1);
413	>	assertHasExclusiveQueuedThreads(sync, t1);
414		assertTrue(sync.getQueuedThreads().contains(t1));
415	+	assertFalse(sync.getQueuedThreads().contains(t2));
416		t2.start();
417	<	Thread.sleep(SHORT_DELAY_MS);
417	>	waitForQueuedThread(sync, t2);
418	>	assertHasExclusiveQueuedThreads(sync, t1, t2);
419		assertTrue(sync.getQueuedThreads().contains(t1));
420		assertTrue(sync.getQueuedThreads().contains(t2));
421		t1.interrupt();
422	<	Thread.sleep(SHORT_DELAY_MS);
423	<	assertFalse(sync.getQueuedThreads().contains(t1));
424	<	assertTrue(sync.getQueuedThreads().contains(t2));
425	<	sync.release(1);
426	<	Thread.sleep(SHORT_DELAY_MS);
269	<	assertTrue(sync.getQueuedThreads().isEmpty());
270	<	t1.join();
271	<	t2.join();
422	>	awaitTermination(t1);
423	>	assertHasExclusiveQueuedThreads(sync, t2);
424	>	sync.release();
425	>	awaitTermination(t2);
426	>	assertHasExclusiveQueuedThreads(sync, NO_THREADS);
427		}
428
429		/**
430	<	* getExclusiveQueuedThreads includes waiting threads
430	>	* getExclusiveQueuedThreads returns all exclusive waiting threads
431		*/
432	<	public void testGetExclusiveQueuedThreads() throws InterruptedException {
433	<	final Mutex sync = new Mutex();
432	>	public void testGetExclusiveQueuedThreads() {
433	>	final Mutex sync = new Mutex();
434		Thread t1 = new Thread(new InterruptedSyncRunnable(sync));
435		Thread t2 = new Thread(new InterruptibleSyncRunnable(sync));
436	<	assertTrue(sync.getExclusiveQueuedThreads().isEmpty());
437	<	sync.acquire(1);
438	<	assertTrue(sync.getExclusiveQueuedThreads().isEmpty());
436	>	assertHasExclusiveQueuedThreads(sync, NO_THREADS);
437	>	sync.acquire();
438	>	assertHasExclusiveQueuedThreads(sync, NO_THREADS);
439		t1.start();
440	<	Thread.sleep(SHORT_DELAY_MS);
440	>	waitForQueuedThread(sync, t1);
441	>	assertHasExclusiveQueuedThreads(sync, t1);
442		assertTrue(sync.getExclusiveQueuedThreads().contains(t1));
443	+	assertFalse(sync.getExclusiveQueuedThreads().contains(t2));
444		t2.start();
445	<	Thread.sleep(SHORT_DELAY_MS);
445	>	waitForQueuedThread(sync, t2);
446	>	assertHasExclusiveQueuedThreads(sync, t1, t2);
447		assertTrue(sync.getExclusiveQueuedThreads().contains(t1));
448		assertTrue(sync.getExclusiveQueuedThreads().contains(t2));
449		t1.interrupt();
450	<	Thread.sleep(SHORT_DELAY_MS);
451	<	assertFalse(sync.getExclusiveQueuedThreads().contains(t1));
452	<	assertTrue(sync.getExclusiveQueuedThreads().contains(t2));
453	<	sync.release(1);
454	<	Thread.sleep(SHORT_DELAY_MS);
297	<	assertTrue(sync.getExclusiveQueuedThreads().isEmpty());
298	<	t1.join();
299	<	t2.join();
450	>	awaitTermination(t1);
451	>	assertHasExclusiveQueuedThreads(sync, t2);
452	>	sync.release();
453	>	awaitTermination(t2);
454	>	assertHasExclusiveQueuedThreads(sync, NO_THREADS);
455		}
456
457		/**
458		* getSharedQueuedThreads does not include exclusively waiting threads
459		*/
460	<	public void testGetSharedQueuedThreads() throws InterruptedException {
461	<	final Mutex sync = new Mutex();
307	<	Thread t1 = new Thread(new InterruptedSyncRunnable(sync));
308	<	Thread t2 = new Thread(new InterruptibleSyncRunnable(sync));
460	>	public void testGetSharedQueuedThreads_Exclusive() {
461	>	final Mutex sync = new Mutex();
462		assertTrue(sync.getSharedQueuedThreads().isEmpty());
463	<	sync.acquire(1);
463	>	sync.acquire();
464		assertTrue(sync.getSharedQueuedThreads().isEmpty());
465	<	t1.start();
466	<	Thread.sleep(SHORT_DELAY_MS);
465	>	Thread t1 = newStartedThread(new InterruptedSyncRunnable(sync));
466	>	waitForQueuedThread(sync, t1);
467		assertTrue(sync.getSharedQueuedThreads().isEmpty());
468	<	t2.start();
469	<	Thread.sleep(SHORT_DELAY_MS);
468	>	Thread t2 = newStartedThread(new InterruptibleSyncRunnable(sync));
469	>	waitForQueuedThread(sync, t2);
470		assertTrue(sync.getSharedQueuedThreads().isEmpty());
471		t1.interrupt();
472	<	Thread.sleep(SHORT_DELAY_MS);
472	>	awaitTermination(t1);
473		assertTrue(sync.getSharedQueuedThreads().isEmpty());
474	<	sync.release(1);
475	<	Thread.sleep(SHORT_DELAY_MS);
474	>	sync.release();
475	>	awaitTermination(t2);
476		assertTrue(sync.getSharedQueuedThreads().isEmpty());
324	–	t1.join();
325	–	t2.join();
477		}
478
479		/**
480	<	* tryAcquireNanos is interruptible.
480	>	* getSharedQueuedThreads returns all shared waiting threads
481	>	*/
482	>	public void testGetSharedQueuedThreads_Shared() {
483	>	final BooleanLatch l = new BooleanLatch();
484	>	assertHasSharedQueuedThreads(l, NO_THREADS);
485	>	Thread t1 = newStartedThread(new CheckedInterruptedRunnable() {
486	>	public void realRun() throws InterruptedException {
487	>	l.acquireSharedInterruptibly(0);
488	>	}});
489	>	waitForQueuedThread(l, t1);
490	>	assertHasSharedQueuedThreads(l, t1);
491	>	Thread t2 = newStartedThread(new CheckedRunnable() {
492	>	public void realRun() throws InterruptedException {
493	>	l.acquireSharedInterruptibly(0);
494	>	}});
495	>	waitForQueuedThread(l, t2);
496	>	assertHasSharedQueuedThreads(l, t1, t2);
497	>	t1.interrupt();
498	>	awaitTermination(t1);
499	>	assertHasSharedQueuedThreads(l, t2);
500	>	assertTrue(l.releaseShared(0));
501	>	awaitTermination(t2);
502	>	assertHasSharedQueuedThreads(l, NO_THREADS);
503	>	}
504	>
505	>	/**
506	>	* tryAcquireNanos is interruptible
507		*/
508	<	public void testInterruptedException2() throws InterruptedException {
509	<	final Mutex sync = new Mutex();
510	<	sync.acquire(1);
511	<	Thread t = new Thread(new Runnable() {
512	<	public void run() {
513	<	try {
514	<	sync.tryAcquireNanos(1, MEDIUM_DELAY_MS * 1000 * 1000);
338	<	threadShouldThrow();
339	<	} catch (InterruptedException success) {}
340	<	}
341	<	});
508	>	public void testTryAcquireNanos_Interruptible() {
509	>	final Mutex sync = new Mutex();
510	>	sync.acquire();
511	>	Thread t = newStartedThread(new CheckedInterruptedRunnable() {
512	>	public void realRun() throws InterruptedException {
513	>	sync.tryAcquireNanos(MILLISECONDS.toNanos(2 * LONG_DELAY_MS));
514	>	}});
515
516	<	t.start();
516	>	waitForQueuedThread(sync, t);
517		t.interrupt();
518	<	t.join();
518	>	awaitTermination(t);
519		}
520
348	–
521		/**
522	<	* TryAcquire on exclusively held sync fails
522	>	* tryAcquire on exclusively held sync fails
523		*/
524	<	public void testTryAcquireWhenSynced() throws InterruptedException {
525	<	final Mutex sync = new Mutex();
526	<	sync.acquire(1);
527	<	Thread t = new Thread(new Runnable() {
528	<	public void run() {
529	<	threadAssertFalse(sync.tryAcquire(1));
530	<	}
359	<	});
524	>	public void testTryAcquireWhenSynced() {
525	>	final Mutex sync = new Mutex();
526	>	sync.acquire();
527	>	Thread t = newStartedThread(new CheckedRunnable() {
528	>	public void realRun() {
529	>	assertFalse(sync.tryAcquire());
530	>	}});
531
532	<	t.start();
533	<	t.join();
363	<	sync.release(1);
532	>	awaitTermination(t);
533	>	sync.release();
534		}
535
536		/**
537		* tryAcquireNanos on an exclusively held sync times out
538		*/
539	<	public void testAcquireNanos_Timeout() throws InterruptedException {
540	<	final Mutex sync = new Mutex();
541	<	sync.acquire(1);
542	<	Thread t = new Thread(new Runnable() {
543	<	public void run() {
544	<	try {
545	<	threadAssertFalse(sync.tryAcquireNanos(1, 1000 * 1000));
546	<	} catch (Exception ex) {
547	<	threadUnexpectedException(ex);
548	<	}
379	<	}
380	<	});
381	<
382	<	t.start();
383	<	t.join();
384	<	sync.release(1);
385	<	}
539	>	public void testAcquireNanos_Timeout() {
540	>	final Mutex sync = new Mutex();
541	>	sync.acquire();
542	>	Thread t = newStartedThread(new CheckedRunnable() {
543	>	public void realRun() throws InterruptedException {
544	>	long startTime = System.nanoTime();
545	>	long nanos = MILLISECONDS.toNanos(timeoutMillis());
546	>	assertFalse(sync.tryAcquireNanos(nanos));
547	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
548	>	}});
549
550	+	awaitTermination(t);
551	+	sync.release();
552	+	}
553
554		/**
555		* getState is true when acquired and false when not
556		*/
557	<	public void testGetState() throws InterruptedException {
558	<	final Mutex sync = new Mutex();
559	<	sync.acquire(1);
394	<	assertTrue(sync.isHeldExclusively());
395	<	sync.release(1);
396	<	assertFalse(sync.isHeldExclusively());
397	<	Thread t = new Thread(new Runnable() {
398	<	public void run() {
399	<	sync.acquire(1);
400	<	try {
401	<	Thread.sleep(SMALL_DELAY_MS);
402	<	}
403	<	catch (Exception e) {
404	<	threadUnexpectedException(e);
405	<	}
406	<	sync.release(1);
407	<	}
408	<	});
409	<
410	<	t.start();
411	<	Thread.sleep(SHORT_DELAY_MS);
557	>	public void testGetState() {
558	>	final Mutex sync = new Mutex();
559	>	sync.acquire();
560		assertTrue(sync.isHeldExclusively());
561	<	t.join();
561	>	sync.release();
562		assertFalse(sync.isHeldExclusively());
415	–	}
563
564	+	final BooleanLatch acquired = new BooleanLatch();
565	+	final BooleanLatch done = new BooleanLatch();
566	+	Thread t = newStartedThread(new CheckedRunnable() {
567	+	public void realRun() throws InterruptedException {
568	+	sync.acquire();
569	+	assertTrue(acquired.releaseShared(0));
570	+	done.acquireShared(0);
571	+	sync.release();
572	+	}});
573
574	<	/**
575	<	* acquireInterruptibly is interruptible.
576	<	*/
577	<	public void testAcquireInterruptibly1() throws InterruptedException {
578	<	final Mutex sync = new Mutex();
423	<	sync.acquire(1);
424	<	Thread t = new Thread(new InterruptedSyncRunnable(sync));
425	<	t.start();
426	<	Thread.sleep(SHORT_DELAY_MS);
427	<	t.interrupt();
428	<	Thread.sleep(SHORT_DELAY_MS);
429	<	sync.release(1);
430	<	t.join();
574	>	acquired.acquireShared(0);
575	>	assertTrue(sync.isHeldExclusively());
576	>	assertTrue(done.releaseShared(0));
577	>	awaitTermination(t);
578	>	assertFalse(sync.isHeldExclusively());
579		}
580
581		/**
582		* acquireInterruptibly succeeds when released, else is interruptible
583		*/
584	<	public void testAcquireInterruptibly2() throws InterruptedException {
585	<	final Mutex sync = new Mutex();
586	<	sync.acquireInterruptibly(1);
587	<	Thread t = new Thread(new InterruptedSyncRunnable(sync));
588	<	t.start();
584	>	public void testAcquireInterruptibly() throws InterruptedException {
585	>	final Mutex sync = new Mutex();
586	>	final BooleanLatch threadStarted = new BooleanLatch();
587	>	sync.acquireInterruptibly();
588	>	Thread t = newStartedThread(new CheckedInterruptedRunnable() {
589	>	public void realRun() throws InterruptedException {
590	>	assertTrue(threadStarted.releaseShared(0));
591	>	sync.acquireInterruptibly();
592	>	}});
593	>
594	>	threadStarted.acquireShared(0);
595	>	waitForQueuedThread(sync, t);
596		t.interrupt();
597	+	awaitTermination(t);
598		assertTrue(sync.isHeldExclusively());
443	–	t.join();
599		}
600
601		/**
602		* owns is true for a condition created by sync else false
603		*/
604		public void testOwns() {
605	<	final Mutex sync = new Mutex();
606	<	final AbstractQueuedLongSynchronizer.ConditionObject c = sync.newCondition();
605	>	final Mutex sync = new Mutex();
606	>	final ConditionObject c = sync.newCondition();
607		final Mutex sync2 = new Mutex();
608		assertTrue(sync.owns(c));
609		assertFalse(sync2.owns(c));
#	Line 457 | Line 612 | public class AbstractQueuedLongSynchroni
612		/**
613		* Calling await without holding sync throws IllegalMonitorStateException
614		*/
615	<	public void testAwait_IllegalMonitor() throws InterruptedException {
616	<	final Mutex sync = new Mutex();
617	<	final AbstractQueuedLongSynchronizer.ConditionObject c = sync.newCondition();
618	<	try {
619	<	c.await();
620	<	shouldThrow();
621	<	}
622	<	catch (IllegalMonitorStateException success) {
615	>	public void testAwait_IMSE() {
616	>	final Mutex sync = new Mutex();
617	>	final ConditionObject c = sync.newCondition();
618	>	for (AwaitMethod awaitMethod : AwaitMethod.values()) {
619	>	long startTime = System.nanoTime();
620	>	try {
621	>	await(c, awaitMethod);
622	>	shouldThrow();
623	>	} catch (IllegalMonitorStateException success) {
624	>	} catch (InterruptedException e) { threadUnexpectedException(e); }
625	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
626		}
627		}
628
629		/**
630		* Calling signal without holding sync throws IllegalMonitorStateException
631		*/
632	<	public void testSignal_IllegalMonitor() throws InterruptedException {
633	<	final Mutex sync = new Mutex();
634	<	final AbstractQueuedLongSynchronizer.ConditionObject c = sync.newCondition();
632	>	public void testSignal_IMSE() {
633	>	final Mutex sync = new Mutex();
634	>	final ConditionObject c = sync.newCondition();
635		try {
636		c.signal();
637		shouldThrow();
638	<	}
639	<	catch (IllegalMonitorStateException success) {}
482	<	}
483	<
484	<	/**
485	<	* awaitNanos without a signal times out
486	<	*/
487	<	public void testAwaitNanos_Timeout() throws InterruptedException {
488	<	final Mutex sync = new Mutex();
489	<	final AbstractQueuedLongSynchronizer.ConditionObject c = sync.newCondition();
490	<	sync.acquire(1);
491	<	long t = c.awaitNanos(100);
492	<	assertTrue(t <= 0);
493	<	sync.release(1);
638	>	} catch (IllegalMonitorStateException success) {}
639	>	assertHasWaitersUnlocked(sync, c, NO_THREADS);
640		}
641
642		/**
643	<	*  Timed await without a signal times out
643	>	* Calling signalAll without holding sync throws IllegalMonitorStateException
644		*/
645	<	public void testAwait_Timeout() throws InterruptedException {
646	<	final Mutex sync = new Mutex();
647	<	final AbstractQueuedLongSynchronizer.ConditionObject c = sync.newCondition();
648	<	sync.acquire(1);
649	<	assertFalse(c.await(SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
650	<	sync.release(1);
645	>	public void testSignalAll_IMSE() {
646	>	final Mutex sync = new Mutex();
647	>	final ConditionObject c = sync.newCondition();
648	>	try {
649	>	c.signalAll();
650	>	shouldThrow();
651	>	} catch (IllegalMonitorStateException success) {}
652		}
653
654		/**
655	<	* awaitUntil without a signal times out
655	>	* await/awaitNanos/awaitUntil without a signal times out
656		*/
657	<	public void testAwaitUntil_Timeout() throws InterruptedException {
658	<	final Mutex sync = new Mutex();
659	<	final AbstractQueuedLongSynchronizer.ConditionObject c = sync.newCondition();
660	<	sync.acquire(1);
661	<	java.util.Date d = new java.util.Date();
662	<	assertFalse(c.awaitUntil(new java.util.Date(d.getTime() + 10)));
663	<	sync.release(1);
657	>	public void testAwaitTimed_Timeout() { testAwait_Timeout(AwaitMethod.awaitTimed); }
658	>	public void testAwaitNanos_Timeout() { testAwait_Timeout(AwaitMethod.awaitNanos); }
659	>	public void testAwaitUntil_Timeout() { testAwait_Timeout(AwaitMethod.awaitUntil); }
660	>	public void testAwait_Timeout(AwaitMethod awaitMethod) {
661	>	final Mutex sync = new Mutex();
662	>	final ConditionObject c = sync.newCondition();
663	>	sync.acquire();
664	>	assertAwaitTimesOut(c, awaitMethod);
665	>	sync.release();
666		}
667
668		/**
669	<	* await returns when signalled
670	<	*/
671	<	public void testAwait() throws InterruptedException {
672	<	final Mutex sync = new Mutex();
673	<	final AbstractQueuedLongSynchronizer.ConditionObject c = sync.newCondition();
674	<	Thread t = new Thread(new Runnable() {
675	<	public void run() {
676	<	try {
677	<	sync.acquire(1);
678	<	c.await();
679	<	sync.release(1);
680	<	}
681	<	catch (InterruptedException e) {
682	<	threadUnexpectedException(e);
683	<	}
684	<	}
685	<	});
686	<
687	<	t.start();
688	<	Thread.sleep(SHORT_DELAY_MS);
689	<	sync.acquire(1);
669	>	* await/awaitNanos/awaitUntil returns when signalled
670	>	*/
671	>	public void testSignal_await()      { testSignal(AwaitMethod.await); }
672	>	public void testSignal_awaitTimed() { testSignal(AwaitMethod.awaitTimed); }
673	>	public void testSignal_awaitNanos() { testSignal(AwaitMethod.awaitNanos); }
674	>	public void testSignal_awaitUntil() { testSignal(AwaitMethod.awaitUntil); }
675	>	public void testSignal(final AwaitMethod awaitMethod) {
676	>	final Mutex sync = new Mutex();
677	>	final ConditionObject c = sync.newCondition();
678	>	final BooleanLatch acquired = new BooleanLatch();
679	>	Thread t = newStartedThread(new CheckedRunnable() {
680	>	public void realRun() throws InterruptedException {
681	>	sync.acquire();
682	>	assertTrue(acquired.releaseShared(0));
683	>	await(c, awaitMethod);
684	>	sync.release();
685	>	}});
686	>
687	>	acquired.acquireShared(0);
688	>	sync.acquire();
689	>	assertHasWaitersLocked(sync, c, t);
690	>	assertHasExclusiveQueuedThreads(sync, NO_THREADS);
691		c.signal();
692	<	sync.release(1);
693	<	t.join(SHORT_DELAY_MS);
694	<	assertFalse(t.isAlive());
692	>	assertHasWaitersLocked(sync, c, NO_THREADS);
693	>	assertHasExclusiveQueuedThreads(sync, t);
694	>	sync.release();
695	>	awaitTermination(t);
696		}
697
547	–
548	–
698		/**
699	<	* hasWaiters throws NPE if null
699	>	* hasWaiters(null) throws NullPointerException
700		*/
701		public void testHasWaitersNPE() {
702	<	final Mutex sync = new Mutex();
702	>	final Mutex sync = new Mutex();
703		try {
704		sync.hasWaiters(null);
705		shouldThrow();
#	Line 558 | Line 707 | public class AbstractQueuedLongSynchroni
707		}
708
709		/**
710	<	* getWaitQueueLength throws NPE if null
710	>	* getWaitQueueLength(null) throws NullPointerException
711		*/
712		public void testGetWaitQueueLengthNPE() {
713	<	final Mutex sync = new Mutex();
713	>	final Mutex sync = new Mutex();
714		try {
715		sync.getWaitQueueLength(null);
716		shouldThrow();
717		} catch (NullPointerException success) {}
718		}
719
571	–
720		/**
721		* getWaitingThreads throws NPE if null
722		*/
723		public void testGetWaitingThreadsNPE() {
724	<	final Mutex sync = new Mutex();
724	>	final Mutex sync = new Mutex();
725		try {
726		sync.getWaitingThreads(null);
727		shouldThrow();
728		} catch (NullPointerException success) {}
729		}
730
583	–
731		/**
732	<	* hasWaiters throws IAE if not owned
732	>	* hasWaiters throws IllegalArgumentException if not owned
733		*/
734		public void testHasWaitersIAE() {
735	<	final Mutex sync = new Mutex();
736	<	final AbstractQueuedLongSynchronizer.ConditionObject c = sync.newCondition();
737	<	final Mutex sync2 = new Mutex();
735	>	final Mutex sync = new Mutex();
736	>	final ConditionObject c = sync.newCondition();
737	>	final Mutex sync2 = new Mutex();
738		try {
739		sync2.hasWaiters(c);
740		shouldThrow();
741		} catch (IllegalArgumentException success) {}
742	+	assertHasWaitersUnlocked(sync, c, NO_THREADS);
743		}
744
745		/**
746	<	* hasWaiters throws IMSE if not synced
746	>	* hasWaiters throws IllegalMonitorStateException if not synced
747		*/
748		public void testHasWaitersIMSE() {
749	<	final Mutex sync = new Mutex();
750	<	final AbstractQueuedLongSynchronizer.ConditionObject c = sync.newCondition();
749	>	final Mutex sync = new Mutex();
750	>	final ConditionObject c = sync.newCondition();
751		try {
752		sync.hasWaiters(c);
753		shouldThrow();
754		} catch (IllegalMonitorStateException success) {}
755	+	assertHasWaitersUnlocked(sync, c, NO_THREADS);
756		}
757
609	–
758		/**
759	<	* getWaitQueueLength throws IAE if not owned
759	>	* getWaitQueueLength throws IllegalArgumentException if not owned
760		*/
761		public void testGetWaitQueueLengthIAE() {
762	<	final Mutex sync = new Mutex();
763	<	final AbstractQueuedLongSynchronizer.ConditionObject c = sync.newCondition();
764	<	final Mutex sync2 = new Mutex();
762	>	final Mutex sync = new Mutex();
763	>	final ConditionObject c = sync.newCondition();
764	>	final Mutex sync2 = new Mutex();
765		try {
766		sync2.getWaitQueueLength(c);
767		shouldThrow();
768		} catch (IllegalArgumentException success) {}
769	+	assertHasWaitersUnlocked(sync, c, NO_THREADS);
770		}
771
772		/**
773	<	* getWaitQueueLength throws IMSE if not synced
773	>	* getWaitQueueLength throws IllegalMonitorStateException if not synced
774		*/
775		public void testGetWaitQueueLengthIMSE() {
776	<	final Mutex sync = new Mutex();
777	<	final AbstractQueuedLongSynchronizer.ConditionObject c = sync.newCondition();
776	>	final Mutex sync = new Mutex();
777	>	final ConditionObject c = sync.newCondition();
778		try {
779		sync.getWaitQueueLength(c);
780		shouldThrow();
781		} catch (IllegalMonitorStateException success) {}
782	+	assertHasWaitersUnlocked(sync, c, NO_THREADS);
783		}
784
635	–
785		/**
786	<	* getWaitingThreads throws IAE if not owned
786	>	* getWaitingThreads throws IllegalArgumentException if not owned
787		*/
788		public void testGetWaitingThreadsIAE() {
789	<	final Mutex sync = new Mutex();
790	<	final AbstractQueuedLongSynchronizer.ConditionObject c = sync.newCondition();
791	<	final Mutex sync2 = new Mutex();
789	>	final Mutex sync = new Mutex();
790	>	final ConditionObject c = sync.newCondition();
791	>	final Mutex sync2 = new Mutex();
792		try {
793		sync2.getWaitingThreads(c);
794		shouldThrow();
795		} catch (IllegalArgumentException success) {}
796	+	assertHasWaitersUnlocked(sync, c, NO_THREADS);
797		}
798
799		/**
800	<	* getWaitingThreads throws IMSE if not synced
800	>	* getWaitingThreads throws IllegalMonitorStateException if not synced
801		*/
802		public void testGetWaitingThreadsIMSE() {
803	<	final Mutex sync = new Mutex();
804	<	final AbstractQueuedLongSynchronizer.ConditionObject c = sync.newCondition();
803	>	final Mutex sync = new Mutex();
804	>	final ConditionObject c = sync.newCondition();
805		try {
806		sync.getWaitingThreads(c);
807		shouldThrow();
808		} catch (IllegalMonitorStateException success) {}
809	+	assertHasWaitersUnlocked(sync, c, NO_THREADS);
810		}
811
661	–
662	–
812		/**
813		* hasWaiters returns true when a thread is waiting, else false
814		*/
815	<	public void testHasWaiters() throws InterruptedException {
816	<	final Mutex sync = new Mutex();
817	<	final AbstractQueuedLongSynchronizer.ConditionObject c = sync.newCondition();
818	<	Thread t = new Thread(new Runnable() {
819	<	public void run() {
820	<	try {
821	<	sync.acquire(1);
822	<	threadAssertFalse(sync.hasWaiters(c));
823	<	threadAssertEquals(0, sync.getWaitQueueLength(c));
824	<	c.await();
825	<	sync.release(1);
826	<	}
827	<	catch (InterruptedException e) {
828	<	threadUnexpectedException(e);
829	<	}
830	<	}
831	<	});
832	<
684	<	t.start();
685	<	Thread.sleep(SHORT_DELAY_MS);
686	<	sync.acquire(1);
815	>	public void testHasWaiters() {
816	>	final Mutex sync = new Mutex();
817	>	final ConditionObject c = sync.newCondition();
818	>	final BooleanLatch acquired = new BooleanLatch();
819	>	Thread t = newStartedThread(new CheckedRunnable() {
820	>	public void realRun() throws InterruptedException {
821	>	sync.acquire();
822	>	assertHasWaitersLocked(sync, c, NO_THREADS);
823	>	assertFalse(sync.hasWaiters(c));
824	>	assertTrue(acquired.releaseShared(0));
825	>	c.await();
826	>	sync.release();
827	>	}});
828	>
829	>	acquired.acquireShared(0);
830	>	sync.acquire();
831	>	assertHasWaitersLocked(sync, c, t);
832	>	assertHasExclusiveQueuedThreads(sync, NO_THREADS);
833		assertTrue(sync.hasWaiters(c));
688	–	assertEquals(1, sync.getWaitQueueLength(c));
834		c.signal();
835	<	sync.release(1);
836	<	Thread.sleep(SHORT_DELAY_MS);
692	<	sync.acquire(1);
835	>	assertHasWaitersLocked(sync, c, NO_THREADS);
836	>	assertHasExclusiveQueuedThreads(sync, t);
837		assertFalse(sync.hasWaiters(c));
838	<	assertEquals(0, sync.getWaitQueueLength(c));
839	<	sync.release(1);
840	<	t.join(SHORT_DELAY_MS);
841	<	assertFalse(t.isAlive());
838	>	sync.release();
839	>
840	>	awaitTermination(t);
841	>	assertHasWaitersUnlocked(sync, c, NO_THREADS);
842		}
843
844		/**
845		* getWaitQueueLength returns number of waiting threads
846		*/
847	<	public void testGetWaitQueueLength() throws InterruptedException {
848	<	final Mutex sync = new Mutex();
849	<	final AbstractQueuedLongSynchronizer.ConditionObject c = sync.newCondition();
850	<	Thread t1 = new Thread(new Runnable() {
851	<	public void run() {
852	<	try {
853	<	sync.acquire(1);
854	<	threadAssertFalse(sync.hasWaiters(c));
855	<	threadAssertEquals(0, sync.getWaitQueueLength(c));
856	<	c.await();
857	<	sync.release(1);
858	<	}
859	<	catch (InterruptedException e) {
860	<	threadUnexpectedException(e);
861	<	}
862	<	}
863	<	});
864	<
865	<	Thread t2 = new Thread(new Runnable() {
722	<	public void run() {
723	<	try {
724	<	sync.acquire(1);
725	<	threadAssertTrue(sync.hasWaiters(c));
726	<	threadAssertEquals(1, sync.getWaitQueueLength(c));
727	<	c.await();
728	<	sync.release(1);
729	<	}
730	<	catch (InterruptedException e) {
731	<	threadUnexpectedException(e);
732	<	}
733	<	}
734	<	});
847	>	public void testGetWaitQueueLength() {
848	>	final Mutex sync = new Mutex();
849	>	final ConditionObject c = sync.newCondition();
850	>	final BooleanLatch acquired1 = new BooleanLatch();
851	>	final BooleanLatch acquired2 = new BooleanLatch();
852	>	final Thread t1 = newStartedThread(new CheckedRunnable() {
853	>	public void realRun() throws InterruptedException {
854	>	sync.acquire();
855	>	assertHasWaitersLocked(sync, c, NO_THREADS);
856	>	assertEquals(0, sync.getWaitQueueLength(c));
857	>	assertTrue(acquired1.releaseShared(0));
858	>	c.await();
859	>	sync.release();
860	>	}});
861	>	acquired1.acquireShared(0);
862	>	sync.acquire();
863	>	assertHasWaitersLocked(sync, c, t1);
864	>	assertEquals(1, sync.getWaitQueueLength(c));
865	>	sync.release();
866
867	<	t1.start();
868	<	Thread.sleep(SHORT_DELAY_MS);
869	<	t2.start();
870	<	Thread.sleep(SHORT_DELAY_MS);
871	<	sync.acquire(1);
872	<	assertTrue(sync.hasWaiters(c));
867	>	final Thread t2 = newStartedThread(new CheckedRunnable() {
868	>	public void realRun() throws InterruptedException {
869	>	sync.acquire();
870	>	assertHasWaitersLocked(sync, c, t1);
871	>	assertEquals(1, sync.getWaitQueueLength(c));
872	>	assertTrue(acquired2.releaseShared(0));
873	>	c.await();
874	>	sync.release();
875	>	}});
876	>	acquired2.acquireShared(0);
877	>	sync.acquire();
878	>	assertHasWaitersLocked(sync, c, t1, t2);
879	>	assertHasExclusiveQueuedThreads(sync, NO_THREADS);
880		assertEquals(2, sync.getWaitQueueLength(c));
881		c.signalAll();
882	<	sync.release(1);
883	<	Thread.sleep(SHORT_DELAY_MS);
746	<	sync.acquire(1);
747	<	assertFalse(sync.hasWaiters(c));
882	>	assertHasWaitersLocked(sync, c, NO_THREADS);
883	>	assertHasExclusiveQueuedThreads(sync, t1, t2);
884		assertEquals(0, sync.getWaitQueueLength(c));
885	<	sync.release(1);
886	<	t1.join(SHORT_DELAY_MS);
887	<	t2.join(SHORT_DELAY_MS);
888	<	assertFalse(t1.isAlive());
889	<	assertFalse(t2.isAlive());
885	>	sync.release();
886	>
887	>	awaitTermination(t1);
888	>	awaitTermination(t2);
889	>	assertHasWaitersUnlocked(sync, c, NO_THREADS);
890		}
891
892		/**
893		* getWaitingThreads returns only and all waiting threads
894		*/
895	<	public void testGetWaitingThreads() throws InterruptedException {
896	<	final Mutex sync = new Mutex();
897	<	final AbstractQueuedLongSynchronizer.ConditionObject c = sync.newCondition();
898	<	Thread t1 = new Thread(new Runnable() {
899	<	public void run() {
900	<	try {
901	<	sync.acquire(1);
902	<	threadAssertTrue(sync.getWaitingThreads(c).isEmpty());
903	<	c.await();
904	<	sync.release(1);
905	<	}
906	<	catch (InterruptedException e) {
907	<	threadUnexpectedException(e);
908	<	}
909	<	}
910	<	});
911	<
912	<	Thread t2 = new Thread(new Runnable() {
913	<	public void run() {
914	<	try {
915	<	sync.acquire(1);
916	<	threadAssertFalse(sync.getWaitingThreads(c).isEmpty());
917	<	c.await();
918	<	sync.release(1);
919	<	}
920	<	catch (InterruptedException e) {
921	<	threadUnexpectedException(e);
922	<	}
923	<	}
924	<	});
925	<
926	<	sync.acquire(1);
927	<	assertTrue(sync.getWaitingThreads(c).isEmpty());
928	<	sync.release(1);
793	<	t1.start();
794	<	Thread.sleep(SHORT_DELAY_MS);
795	<	t2.start();
796	<	Thread.sleep(SHORT_DELAY_MS);
797	<	sync.acquire(1);
798	<	assertTrue(sync.hasWaiters(c));
799	<	assertTrue(sync.getWaitingThreads(c).contains(t1));
800	<	assertTrue(sync.getWaitingThreads(c).contains(t2));
801	<	c.signalAll();
802	<	sync.release(1);
803	<	Thread.sleep(SHORT_DELAY_MS);
804	<	sync.acquire(1);
805	<	assertFalse(sync.hasWaiters(c));
806	<	assertTrue(sync.getWaitingThreads(c).isEmpty());
807	<	sync.release(1);
808	<	t1.join(SHORT_DELAY_MS);
809	<	t2.join(SHORT_DELAY_MS);
810	<	assertFalse(t1.isAlive());
811	<	assertFalse(t2.isAlive());
812	<	}
813	<
895	>	public void testGetWaitingThreads() {
896	>	final Mutex sync = new Mutex();
897	>	final ConditionObject c = sync.newCondition();
898	>	final BooleanLatch acquired1 = new BooleanLatch();
899	>	final BooleanLatch acquired2 = new BooleanLatch();
900	>	final Thread t1 = new Thread(new CheckedRunnable() {
901	>	public void realRun() throws InterruptedException {
902	>	sync.acquire();
903	>	assertHasWaitersLocked(sync, c, NO_THREADS);
904	>	assertTrue(sync.getWaitingThreads(c).isEmpty());
905	>	assertTrue(acquired1.releaseShared(0));
906	>	c.await();
907	>	sync.release();
908	>	}});
909	>
910	>	final Thread t2 = new Thread(new CheckedRunnable() {
911	>	public void realRun() throws InterruptedException {
912	>	sync.acquire();
913	>	assertHasWaitersLocked(sync, c, t1);
914	>	assertTrue(sync.getWaitingThreads(c).contains(t1));
915	>	assertFalse(sync.getWaitingThreads(c).isEmpty());
916	>	assertEquals(1, sync.getWaitingThreads(c).size());
917	>	assertTrue(acquired2.releaseShared(0));
918	>	c.await();
919	>	sync.release();
920	>	}});
921	>
922	>	sync.acquire();
923	>	assertHasWaitersLocked(sync, c, NO_THREADS);
924	>	assertFalse(sync.getWaitingThreads(c).contains(t1));
925	>	assertFalse(sync.getWaitingThreads(c).contains(t2));
926	>	assertTrue(sync.getWaitingThreads(c).isEmpty());
927	>	assertEquals(0, sync.getWaitingThreads(c).size());
928	>	sync.release();
929
930	+	t1.start();
931	+	acquired1.acquireShared(0);
932	+	sync.acquire();
933	+	assertHasWaitersLocked(sync, c, t1);
934	+	assertTrue(sync.getWaitingThreads(c).contains(t1));
935	+	assertFalse(sync.getWaitingThreads(c).contains(t2));
936	+	assertFalse(sync.getWaitingThreads(c).isEmpty());
937	+	assertEquals(1, sync.getWaitingThreads(c).size());
938	+	sync.release();
939
940	<	/**
941	<	* awaitUninterruptibly doesn't abort on interrupt
942	<	*/
943	<	public void testAwaitUninterruptibly() throws InterruptedException {
944	<	final Mutex sync = new Mutex();
945	<	final AbstractQueuedLongSynchronizer.ConditionObject c = sync.newCondition();
946	<	Thread t = new Thread(new Runnable() {
947	<	public void run() {
948	<	sync.acquire(1);
949	<	c.awaitUninterruptibly();
950	<	sync.release(1);
951	<	}
952	<	});
953	<
954	<	t.start();
955	<	Thread.sleep(SHORT_DELAY_MS);
956	<	t.interrupt();
957	<	sync.acquire(1);
958	<	c.signal();
959	<	sync.release(1);
960	<	t.join(SHORT_DELAY_MS);
837	<	assertFalse(t.isAlive());
838	<	}
839	<
840	<	/**
841	<	* await is interruptible
842	<	*/
843	<	public void testAwait_Interrupt() throws InterruptedException {
844	<	final Mutex sync = new Mutex();
845	<	final AbstractQueuedLongSynchronizer.ConditionObject c = sync.newCondition();
846	<	Thread t = new Thread(new Runnable() {
847	<	public void run() {
848	<	try {
849	<	sync.acquire(1);
850	<	c.await();
851	<	sync.release(1);
852	<	threadShouldThrow();
853	<	}
854	<	catch (InterruptedException success) {
855	<	}
856	<	}
857	<	});
858	<
859	<	t.start();
860	<	Thread.sleep(SHORT_DELAY_MS);
861	<	t.interrupt();
862	<	t.join(SHORT_DELAY_MS);
863	<	assertFalse(t.isAlive());
940	>	t2.start();
941	>	acquired2.acquireShared(0);
942	>	sync.acquire();
943	>	assertHasWaitersLocked(sync, c, t1, t2);
944	>	assertHasExclusiveQueuedThreads(sync, NO_THREADS);
945	>	assertTrue(sync.getWaitingThreads(c).contains(t1));
946	>	assertTrue(sync.getWaitingThreads(c).contains(t2));
947	>	assertFalse(sync.getWaitingThreads(c).isEmpty());
948	>	assertEquals(2, sync.getWaitingThreads(c).size());
949	>	c.signalAll();
950	>	assertHasWaitersLocked(sync, c, NO_THREADS);
951	>	assertHasExclusiveQueuedThreads(sync, t1, t2);
952	>	assertFalse(sync.getWaitingThreads(c).contains(t1));
953	>	assertFalse(sync.getWaitingThreads(c).contains(t2));
954	>	assertTrue(sync.getWaitingThreads(c).isEmpty());
955	>	assertEquals(0, sync.getWaitingThreads(c).size());
956	>	sync.release();
957	>
958	>	awaitTermination(t1);
959	>	awaitTermination(t2);
960	>	assertHasWaitersUnlocked(sync, c, NO_THREADS);
961		}
962
963		/**
964	<	* awaitNanos is interruptible
965	<	*/
966	<	public void testAwaitNanos_Interrupt() throws InterruptedException {
967	<	final Mutex sync = new Mutex();
968	<	final AbstractQueuedLongSynchronizer.ConditionObject c = sync.newCondition();
969	<	Thread t = new Thread(new Runnable() {
970	<	public void run() {
971	<	try {
972	<	sync.acquire(1);
973	<	c.awaitNanos(1000 * 1000 * 1000); // 1 sec
974	<	sync.release(1);
975	<	threadShouldThrow();
976	<	}
977	<	catch (InterruptedException success) {
978	<	}
979	<	}
980	<	});
981	<
982	<	t.start();
983	<	Thread.sleep(SHORT_DELAY_MS);
964	>	* awaitUninterruptibly is uninterruptible
965	>	*/
966	>	public void testAwaitUninterruptibly() {
967	>	final Mutex sync = new Mutex();
968	>	final ConditionObject condition = sync.newCondition();
969	>	final BooleanLatch pleaseInterrupt = new BooleanLatch();
970	>	Thread t = newStartedThread(new CheckedRunnable() {
971	>	public void realRun() {
972	>	sync.acquire();
973	>	assertTrue(pleaseInterrupt.releaseShared(0));
974	>	condition.awaitUninterruptibly();
975	>	assertTrue(Thread.interrupted());
976	>	assertHasWaitersLocked(sync, condition, NO_THREADS);
977	>	sync.release();
978	>	}});
979	>
980	>	pleaseInterrupt.acquireShared(0);
981	>	sync.acquire();
982	>	assertHasWaitersLocked(sync, condition, t);
983	>	sync.release();
984		t.interrupt();
985	<	t.join(SHORT_DELAY_MS);
986	<	assertFalse(t.isAlive());
985	>	assertHasWaitersUnlocked(sync, condition, t);
986	>	assertThreadBlocks(t, Thread.State.WAITING);
987	>	sync.acquire();
988	>	assertHasWaitersLocked(sync, condition, t);
989	>	assertHasExclusiveQueuedThreads(sync, NO_THREADS);
990	>	condition.signal();
991	>	assertHasWaitersLocked(sync, condition, NO_THREADS);
992	>	assertHasExclusiveQueuedThreads(sync, t);
993	>	sync.release();
994	>	awaitTermination(t);
995		}
996
997		/**
998	<	* awaitUntil is interruptible
999	<	*/
1000	<	public void testAwaitUntil_Interrupt() throws InterruptedException {
1001	<	final Mutex sync = new Mutex();
1002	<	final AbstractQueuedLongSynchronizer.ConditionObject c = sync.newCondition();
1003	<	Thread t = new Thread(new Runnable() {
1004	<	public void run() {
1005	<	try {
1006	<	sync.acquire(1);
1007	<	java.util.Date d = new java.util.Date();
1008	<	c.awaitUntil(new java.util.Date(d.getTime() + 10000));
1009	<	sync.release(1);
1010	<	threadShouldThrow();
1011	<	}
1012	<	catch (InterruptedException success) {
1013	<	}
909	<	}
910	<	});
998	>	* await/awaitNanos/awaitUntil is interruptible
999	>	*/
1000	>	public void testInterruptible_await()      { testInterruptible(AwaitMethod.await); }
1001	>	public void testInterruptible_awaitTimed() { testInterruptible(AwaitMethod.awaitTimed); }
1002	>	public void testInterruptible_awaitNanos() { testInterruptible(AwaitMethod.awaitNanos); }
1003	>	public void testInterruptible_awaitUntil() { testInterruptible(AwaitMethod.awaitUntil); }
1004	>	public void testInterruptible(final AwaitMethod awaitMethod) {
1005	>	final Mutex sync = new Mutex();
1006	>	final ConditionObject c = sync.newCondition();
1007	>	final BooleanLatch pleaseInterrupt = new BooleanLatch();
1008	>	Thread t = newStartedThread(new CheckedInterruptedRunnable() {
1009	>	public void realRun() throws InterruptedException {
1010	>	sync.acquire();
1011	>	assertTrue(pleaseInterrupt.releaseShared(0));
1012	>	await(c, awaitMethod);
1013	>	}});
1014
1015	<	t.start();
913	<	Thread.sleep(SHORT_DELAY_MS);
1015	>	pleaseInterrupt.acquireShared(0);
1016		t.interrupt();
1017	<	t.join(SHORT_DELAY_MS);
916	<	assertFalse(t.isAlive());
1017	>	awaitTermination(t);
1018		}
1019
1020		/**
1021		* signalAll wakes up all threads
1022		*/
1023	<	public void testSignalAll() throws InterruptedException {
1024	<	final Mutex sync = new Mutex();
1025	<	final AbstractQueuedLongSynchronizer.ConditionObject c = sync.newCondition();
1026	<	Thread t1 = new Thread(new Runnable() {
1027	<	public void run() {
1028	<	try {
1029	<	sync.acquire(1);
1030	<	c.await();
1031	<	sync.release(1);
1032	<	}
1033	<	catch (InterruptedException e) {
1034	<	threadUnexpectedException();
1035	<	}
1036	<	}
1037	<	});
1038	<
1039	<	Thread t2 = new Thread(new Runnable() {
1040	<	public void run() {
1041	<	try {
1042	<	sync.acquire(1);
1043	<	c.await();
1044	<	sync.release(1);
1045	<	}
1046	<	catch (InterruptedException e) {
1047	<	threadUnexpectedException();
1048	<	}
1049	<	}
1050	<	});
1051	<
1052	<	t1.start();
952	<	t2.start();
953	<	Thread.sleep(SHORT_DELAY_MS);
954	<	sync.acquire(1);
1023	>	public void testSignalAll_await()      { testSignalAll(AwaitMethod.await); }
1024	>	public void testSignalAll_awaitTimed() { testSignalAll(AwaitMethod.awaitTimed); }
1025	>	public void testSignalAll_awaitNanos() { testSignalAll(AwaitMethod.awaitNanos); }
1026	>	public void testSignalAll_awaitUntil() { testSignalAll(AwaitMethod.awaitUntil); }
1027	>	public void testSignalAll(final AwaitMethod awaitMethod) {
1028	>	final Mutex sync = new Mutex();
1029	>	final ConditionObject c = sync.newCondition();
1030	>	final BooleanLatch acquired1 = new BooleanLatch();
1031	>	final BooleanLatch acquired2 = new BooleanLatch();
1032	>	Thread t1 = newStartedThread(new CheckedRunnable() {
1033	>	public void realRun() throws InterruptedException {
1034	>	sync.acquire();
1035	>	acquired1.releaseShared(0);
1036	>	await(c, awaitMethod);
1037	>	sync.release();
1038	>	}});
1039	>
1040	>	Thread t2 = newStartedThread(new CheckedRunnable() {
1041	>	public void realRun() throws InterruptedException {
1042	>	sync.acquire();
1043	>	acquired2.releaseShared(0);
1044	>	await(c, awaitMethod);
1045	>	sync.release();
1046	>	}});
1047	>
1048	>	acquired1.acquireShared(0);
1049	>	acquired2.acquireShared(0);
1050	>	sync.acquire();
1051	>	assertHasWaitersLocked(sync, c, t1, t2);
1052	>	assertHasExclusiveQueuedThreads(sync, NO_THREADS);
1053		c.signalAll();
1054	<	sync.release(1);
1055	<	t1.join(SHORT_DELAY_MS);
1056	<	t2.join(SHORT_DELAY_MS);
1057	<	assertFalse(t1.isAlive());
1058	<	assertFalse(t2.isAlive());
1054	>	assertHasWaitersLocked(sync, c, NO_THREADS);
1055	>	assertHasExclusiveQueuedThreads(sync, t1, t2);
1056	>	sync.release();
1057	>	awaitTermination(t1);
1058	>	awaitTermination(t2);
1059		}
1060
963	–
1061		/**
1062		* toString indicates current state
1063		*/
1064		public void testToString() {
1065		Mutex sync = new Mutex();
1066	<	String us = sync.toString();
1067	<	assertTrue(us.indexOf("State = 0") >= 0);
1068	<	sync.acquire(1);
972	<	String ls = sync.toString();
973	<	assertTrue(ls.indexOf("State = " + Mutex.LOCKED) >= 0);
1066	>	assertTrue(sync.toString().contains("State = " + Mutex.UNLOCKED));
1067	>	sync.acquire();
1068	>	assertTrue(sync.toString().contains("State = " + Mutex.LOCKED));
1069		}
1070
1071		/**
1072	<	* A serialized AQS deserializes with current state
1073	<	*/
1074	<	public void testSerialization() throws Exception {
1075	<	Mutex l = new Mutex();
1076	<	l.acquire(1);
1077	<	assertTrue(l.isHeldExclusively());
1078	<
1079	<	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
1080	<	ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
986	<	out.writeObject(l);
987	<	out.close();
988	<
989	<	ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
990	<	ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
991	<	Mutex r = (Mutex) in.readObject();
992	<	assertTrue(r.isHeldExclusively());
993	<	}
1072	>	* A serialized AQS deserializes with current state, but no queued threads
1073	>	*/
1074	>	public void testSerialization() {
1075	>	Mutex sync = new Mutex();
1076	>	assertFalse(serialClone(sync).isHeldExclusively());
1077	>	sync.acquire();
1078	>	Thread t = newStartedThread(new InterruptedSyncRunnable(sync));
1079	>	waitForQueuedThread(sync, t);
1080	>	assertTrue(sync.isHeldExclusively());
1081
1082	+	Mutex clone = serialClone(sync);
1083	+	assertTrue(clone.isHeldExclusively());
1084	+	assertHasExclusiveQueuedThreads(sync, t);
1085	+	assertHasExclusiveQueuedThreads(clone, NO_THREADS);
1086	+	t.interrupt();
1087	+	awaitTermination(t);
1088	+	sync.release();
1089	+	assertFalse(sync.isHeldExclusively());
1090	+	assertTrue(clone.isHeldExclusively());
1091	+	assertHasExclusiveQueuedThreads(sync, NO_THREADS);
1092	+	assertHasExclusiveQueuedThreads(clone, NO_THREADS);
1093	+	}
1094
1095		/**
1096		* tryReleaseShared setting state changes getState
1097		*/
1098		public void testGetStateWithReleaseShared() {
1099	<	final BooleanLatch l = new BooleanLatch();
1100	<	assertFalse(l.isSignalled());
1101	<	l.releaseShared(0);
1102	<	assertTrue(l.isSignalled());
1099	>	final BooleanLatch l = new BooleanLatch();
1100	>	assertFalse(l.isSignalled());
1101	>	assertTrue(l.releaseShared(0));
1102	>	assertTrue(l.isSignalled());
1103		}
1104
1105		/**
1106		* releaseShared has no effect when already signalled
1107		*/
1108		public void testReleaseShared() {
1109	<	final BooleanLatch l = new BooleanLatch();
1110	<	assertFalse(l.isSignalled());
1111	<	l.releaseShared(0);
1112	<	assertTrue(l.isSignalled());
1113	<	l.releaseShared(0);
1114	<	assertTrue(l.isSignalled());
1109	>	final BooleanLatch l = new BooleanLatch();
1110	>	assertFalse(l.isSignalled());
1111	>	assertTrue(l.releaseShared(0));
1112	>	assertTrue(l.isSignalled());
1113	>	assertTrue(l.releaseShared(0));
1114	>	assertTrue(l.isSignalled());
1115		}
1116
1117		/**
1118		* acquireSharedInterruptibly returns after release, but not before
1119		*/
1120	<	public void testAcquireSharedInterruptibly() throws InterruptedException {
1121	<	final BooleanLatch l = new BooleanLatch();
1120	>	public void testAcquireSharedInterruptibly() {
1121	>	final BooleanLatch l = new BooleanLatch();
1122
1123	<	Thread t = new Thread(new Runnable() {
1124	<	public void run() {
1125	<	try {
1126	<	threadAssertFalse(l.isSignalled());
1127	<	l.acquireSharedInterruptibly(0);
1128	<	threadAssertTrue(l.isSignalled());
1129	<	} catch (InterruptedException e) {
1130	<	threadUnexpectedException();
1032	<	}
1033	<	}
1034	<	});
1123	>	Thread t = newStartedThread(new CheckedRunnable() {
1124	>	public void realRun() throws InterruptedException {
1125	>	assertFalse(l.isSignalled());
1126	>	l.acquireSharedInterruptibly(0);
1127	>	assertTrue(l.isSignalled());
1128	>	l.acquireSharedInterruptibly(0);
1129	>	assertTrue(l.isSignalled());
1130	>	}});
1131
1132	<	t.start();
1132	>	waitForQueuedThread(l, t);
1133		assertFalse(l.isSignalled());
1134	<	Thread.sleep(SHORT_DELAY_MS);
1135	<	l.releaseShared(0);
1134	>	assertThreadBlocks(t, Thread.State.WAITING);
1135	>	assertHasSharedQueuedThreads(l, t);
1136	>	assertTrue(l.releaseShared(0));
1137		assertTrue(l.isSignalled());
1138	<	t.join();
1138	>	awaitTermination(t);
1139		}
1140
1044	–
1141		/**
1142	<	* acquireSharedTimed returns after release
1142	>	* tryAcquireSharedNanos returns after release, but not before
1143		*/
1144	<	public void testAsquireSharedTimed() throws InterruptedException {
1145	<	final BooleanLatch l = new BooleanLatch();
1050	<
1051	<	Thread t = new Thread(new Runnable() {
1052	<	public void run() {
1053	<	try {
1054	<	threadAssertFalse(l.isSignalled());
1055	<	threadAssertTrue(l.tryAcquireSharedNanos(0, MEDIUM_DELAY_MS* 1000 * 1000));
1056	<	threadAssertTrue(l.isSignalled());
1144	>	public void testTryAcquireSharedNanos() {
1145	>	final BooleanLatch l = new BooleanLatch();
1146
1147	<	} catch (InterruptedException e) {
1148	<	threadUnexpectedException();
1149	<	}
1150	<	}
1151	<	});
1147	>	Thread t = newStartedThread(new CheckedRunnable() {
1148	>	public void realRun() throws InterruptedException {
1149	>	assertFalse(l.isSignalled());
1150	>	long nanos = MILLISECONDS.toNanos(2 * LONG_DELAY_MS);
1151	>	assertTrue(l.tryAcquireSharedNanos(0, nanos));
1152	>	assertTrue(l.isSignalled());
1153	>	assertTrue(l.tryAcquireSharedNanos(0, nanos));
1154	>	assertTrue(l.isSignalled());
1155	>	}});
1156
1157	<	t.start();
1157	>	waitForQueuedThread(l, t);
1158		assertFalse(l.isSignalled());
1159	<	Thread.sleep(SHORT_DELAY_MS);
1160	<	l.releaseShared(0);
1159	>	assertThreadStaysAlive(t);
1160	>	assertTrue(l.releaseShared(0));
1161		assertTrue(l.isSignalled());
1162	<	t.join();
1162	>	awaitTermination(t);
1163		}
1164
1165		/**
1166	<	* acquireSharedInterruptibly throws IE if interrupted before released
1166	>	* acquireSharedInterruptibly is interruptible
1167		*/
1168	<	public void testAcquireSharedInterruptibly_InterruptedException() throws InterruptedException {
1168	>	public void testAcquireSharedInterruptibly_Interruptible() {
1169		final BooleanLatch l = new BooleanLatch();
1170	<	Thread t = new Thread(new Runnable() {
1171	<	public void run() {
1172	<	try {
1173	<	threadAssertFalse(l.isSignalled());
1174	<	l.acquireSharedInterruptibly(0);
1082	<	threadShouldThrow();
1083	<	} catch (InterruptedException success) {}
1084	<	}
1085	<	});
1170	>	Thread t = newStartedThread(new CheckedInterruptedRunnable() {
1171	>	public void realRun() throws InterruptedException {
1172	>	assertFalse(l.isSignalled());
1173	>	l.acquireSharedInterruptibly(0);
1174	>	}});
1175
1176	<	t.start();
1176	>	waitForQueuedThread(l, t);
1177		assertFalse(l.isSignalled());
1178		t.interrupt();
1179	<	t.join();
1179	>	awaitTermination(t);
1180	>	assertFalse(l.isSignalled());
1181		}
1182
1183		/**
1184	<	* acquireSharedTimed throws IE if interrupted before released
1184	>	* tryAcquireSharedNanos is interruptible
1185		*/
1186	<	public void testAcquireSharedNanos_InterruptedException() throws InterruptedException {
1186	>	public void testTryAcquireSharedNanos_Interruptible() {
1187		final BooleanLatch l = new BooleanLatch();
1188	<	Thread t = new Thread(new Runnable() {
1189	<	public void run() {
1190	<	try {
1191	<	threadAssertFalse(l.isSignalled());
1192	<	l.tryAcquireSharedNanos(0, SMALL_DELAY_MS* 1000 * 1000);
1193	<	threadShouldThrow();
1104	<	} catch (InterruptedException success) {}
1105	<	}
1106	<	});
1188	>	Thread t = newStartedThread(new CheckedInterruptedRunnable() {
1189	>	public void realRun() throws InterruptedException {
1190	>	assertFalse(l.isSignalled());
1191	>	long nanos = MILLISECONDS.toNanos(2 * LONG_DELAY_MS);
1192	>	l.tryAcquireSharedNanos(0, nanos);
1193	>	}});
1194
1195	<	t.start();
1109	<	Thread.sleep(SHORT_DELAY_MS);
1195	>	waitForQueuedThread(l, t);
1196		assertFalse(l.isSignalled());
1197		t.interrupt();
1198	<	t.join();
1198	>	awaitTermination(t);
1199	>	assertFalse(l.isSignalled());
1200		}
1201
1202		/**
1203	<	* acquireSharedTimed times out if not released before timeout
1203	>	* tryAcquireSharedNanos times out if not released before timeout
1204		*/
1205	<	public void testAcquireSharedNanos_Timeout() throws InterruptedException {
1205	>	public void testTryAcquireSharedNanos_Timeout() {
1206		final BooleanLatch l = new BooleanLatch();
1207	<	Thread t = new Thread(new Runnable() {
1208	<	public void run() {
1209	<	try {
1210	<	threadAssertFalse(l.isSignalled());
1211	<	threadAssertFalse(l.tryAcquireSharedNanos(0, SMALL_DELAY_MS* 1000 * 1000));
1212	<	} catch (InterruptedException ie) {
1213	<	threadUnexpectedException();
1214	<	}
1207	>	final BooleanLatch observedQueued = new BooleanLatch();
1208	>	Thread t = newStartedThread(new CheckedRunnable() {
1209	>	public void realRun() throws InterruptedException {
1210	>	assertFalse(l.isSignalled());
1211	>	for (long millis = timeoutMillis();
1212	>	!observedQueued.isSignalled();
1213	>	millis *= 2) {
1214	>	long nanos = MILLISECONDS.toNanos(millis);
1215	>	long startTime = System.nanoTime();
1216	>	assertFalse(l.tryAcquireSharedNanos(0, nanos));
1217	>	assertTrue(millisElapsedSince(startTime) >= millis);
1218		}
1219	<	});
1219	>	assertFalse(l.isSignalled());
1220	>	}});
1221
1222	<	t.start();
1223	<	Thread.sleep(SHORT_DELAY_MS);
1222	>	waitForQueuedThread(l, t);
1223	>	observedQueued.releaseShared(0);
1224	>	assertFalse(l.isSignalled());
1225	>	awaitTermination(t);
1226		assertFalse(l.isSignalled());
1134	–	t.join();
1227		}
1228
1229	+	/**
1230	+	* awaitNanos/timed await with 0 wait times out immediately
1231	+	*/
1232	+	public void testAwait_Zero() throws InterruptedException {
1233	+	final Mutex sync = new Mutex();
1234	+	final ConditionObject c = sync.newCondition();
1235	+	sync.acquire();
1236	+	assertTrue(c.awaitNanos(0L) <= 0);
1237	+	assertFalse(c.await(0L, NANOSECONDS));
1238	+	sync.release();
1239	+	}
1240	+
1241	+	/**
1242	+	* awaitNanos/timed await with maximum negative wait times does not underflow
1243	+	*/
1244	+	public void testAwait_NegativeInfinity() throws InterruptedException {
1245	+	final Mutex sync = new Mutex();
1246	+	final ConditionObject c = sync.newCondition();
1247	+	sync.acquire();
1248	+	assertTrue(c.awaitNanos(Long.MIN_VALUE) <= 0);
1249	+	assertFalse(c.await(Long.MIN_VALUE, NANOSECONDS));
1250	+	sync.release();
1251	+	}
1252
1253		}

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