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root/jsr166/jsr166/src/test/tck/JSR166TestCase.java

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.30 by dl, Thu Apr 20 20:35:00 2006 UTC vs.
Revision 1.84 by jsr166, Sat May 28 22:19:27 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
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 junit.framework.*;
10	<	import java.util.*;
10	>	import java.io.ByteArrayInputStream;
11	>	import java.io.ByteArrayOutputStream;
12	>	import java.io.ObjectInputStream;
13	>	import java.io.ObjectOutputStream;
14	>	import java.util.Arrays;
15	>	import java.util.Date;
16	>	import java.util.NoSuchElementException;
17	>	import java.util.PropertyPermission;
18		import java.util.concurrent.*;
19	<	import java.io.*;
20	<	import java.security.*;
19	>	import java.util.concurrent.atomic.AtomicBoolean;
20	>	import java.util.concurrent.atomic.AtomicReference;
21	>	import static java.util.concurrent.TimeUnit.MILLISECONDS;
22	>	import static java.util.concurrent.TimeUnit.NANOSECONDS;
23	>	import java.security.CodeSource;
24	>	import java.security.Permission;
25	>	import java.security.PermissionCollection;
26	>	import java.security.Permissions;
27	>	import java.security.Policy;
28	>	import java.security.ProtectionDomain;
29	>	import java.security.SecurityPermission;
30
31		/**
32		* Base class for JSR166 Junit TCK tests.  Defines some constants,
#	Line 25 | Line 41 | import java.security.*;
41		* <li> All assertions in code running in generated threads must use
42		* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link
43		* #threadAssertEquals}, or {@link #threadAssertNull}, (not
44	<	* <tt>fail</tt>, <tt>assertTrue</tt>, etc.) It is OK (but not
44	>	* {@code fail}, {@code assertTrue}, etc.) It is OK (but not
45		* particularly recommended) for other code to use these forms too.
46		* Only the most typically used JUnit assertion methods are defined
47		* this way, but enough to live with.</li>
48		*
49		* <li> If you override {@link #setUp} or {@link #tearDown}, make sure
50	<	* to invoke <tt>super.setUp</tt> and <tt>super.tearDown</tt> within
50	>	* to invoke {@code super.setUp} and {@code super.tearDown} within
51		* them. These methods are used to clear and check for thread
52		* assertion failures.</li>
53		*
54	<	* <li>All delays and timeouts must use one of the constants <tt>
55	<	* SHORT_DELAY_MS</tt>, <tt> SMALL_DELAY_MS</tt>, <tt> MEDIUM_DELAY_MS</tt>,
56	<	* <tt> LONG_DELAY_MS</tt>. The idea here is that a SHORT is always
54	>	* <li>All delays and timeouts must use one of the constants {@code
55	>	* SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS},
56	>	* {@code LONG_DELAY_MS}. The idea here is that a SHORT is always
57		* discriminable from zero time, and always allows enough time for the
58		* small amounts of computation (creating a thread, calling a few
59		* methods, etc) needed to reach a timeout point. Similarly, a SMALL
#	Line 47 | Line 63 | import java.security.*;
63		* in one spot to rerun tests on slower platforms.</li>
64		*
65		* <li> All threads generated must be joined inside each test case
66	<	* method (or <tt>fail</tt> to do so) before returning from the
67	<	* method. The <tt> joinPool</tt> method can be used to do this when
66	>	* method (or {@code fail} to do so) before returning from the
67	>	* method. The {@code joinPool} method can be used to do this when
68		* using Executors.</li>
69		*
70		* </ol>
#	Line 80 | Line 96 | import java.security.*;
96		* any particular package to simplify things for people integrating
97		* them in TCK test suites.</li>
98		*
99	<	* <li> As a convenience, the <tt>main</tt> of this class (JSR166TestCase)
99	>	* <li> As a convenience, the {@code main} of this class (JSR166TestCase)
100		* runs all JSR166 unit tests.</li>
101		*
102		* </ul>
103		*/
104		public class JSR166TestCase extends TestCase {
105	+	private static final boolean useSecurityManager =
106	+	Boolean.getBoolean("jsr166.useSecurityManager");
107	+
108	+	protected static final boolean expensiveTests =
109	+	Boolean.getBoolean("jsr166.expensiveTests");
110	+
111	+	/**
112	+	* If true, report on stdout all "slow" tests, that is, ones that
113	+	* take more than profileThreshold milliseconds to execute.
114	+	*/
115	+	private static final boolean profileTests =
116	+	Boolean.getBoolean("jsr166.profileTests");
117	+
118	+	/**
119	+	* The number of milliseconds that tests are permitted for
120	+	* execution without being reported, when profileTests is set.
121	+	*/
122	+	private static final long profileThreshold =
123	+	Long.getLong("jsr166.profileThreshold", 100);
124	+
125	+	protected void runTest() throws Throwable {
126	+	if (profileTests)
127	+	runTestProfiled();
128	+	else
129	+	super.runTest();
130	+	}
131	+
132	+	protected void runTestProfiled() throws Throwable {
133	+	long t0 = System.nanoTime();
134	+	try {
135	+	super.runTest();
136	+	} finally {
137	+	long elapsedMillis =
138	+	(System.nanoTime() - t0) / (1000L * 1000L);
139	+	if (elapsedMillis >= profileThreshold)
140	+	System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
141	+	}
142	+	}
143	+
144		/**
145		* Runs all JSR166 unit tests using junit.textui.TestRunner
146		*/
147	<	public static void main (String[] args) {
148	<	int iters = 1;
149	<	if (args.length > 0)
150	<	iters = Integer.parseInt(args[0]);
147	>	public static void main(String[] args) {
148	>	if (useSecurityManager) {
149	>	System.err.println("Setting a permissive security manager");
150	>	Policy.setPolicy(permissivePolicy());
151	>	System.setSecurityManager(new SecurityManager());
152	>	}
153	>	int iters = (args.length == 0) ? 1 : Integer.parseInt(args[0]);
154	>
155		Test s = suite();
156		for (int i = 0; i < iters; ++i) {
157	<	junit.textui.TestRunner.run (s);
157	>	junit.textui.TestRunner.run(s);
158		System.gc();
159		System.runFinalization();
160		}
161		System.exit(0);
162		}
163
164	+	public static TestSuite newTestSuite(Object... suiteOrClasses) {
165	+	TestSuite suite = new TestSuite();
166	+	for (Object suiteOrClass : suiteOrClasses) {
167	+	if (suiteOrClass instanceof TestSuite)
168	+	suite.addTest((TestSuite) suiteOrClass);
169	+	else if (suiteOrClass instanceof Class)
170	+	suite.addTest(new TestSuite((Class<?>) suiteOrClass));
171	+	else
172	+	throw new ClassCastException("not a test suite or class");
173	+	}
174	+	return suite;
175	+	}
176	+
177		/**
178	<	* Collects all JSR166 unit tests as one suite
178	>	* Collects all JSR166 unit tests as one suite.
179		*/
180	<	public static Test suite ( ) {
181	<	TestSuite suite = new TestSuite("JSR166 Unit Tests");
182	<
183	<	suite.addTest(new TestSuite(AbstractExecutorServiceTest.class));
184	<	suite.addTest(new TestSuite(AbstractQueueTest.class));
185	<	suite.addTest(new TestSuite(AbstractQueuedSynchronizerTest.class));
186	<	suite.addTest(new TestSuite(AbstractQueuedLongSynchronizerTest.class));
187	<	suite.addTest(new TestSuite(ArrayBlockingQueueTest.class));
188	<	suite.addTest(new TestSuite(ArrayDequeTest.class));
189	<	suite.addTest(new TestSuite(AtomicBooleanTest.class));
190	<	suite.addTest(new TestSuite(AtomicIntegerArrayTest.class));
191	<	suite.addTest(new TestSuite(AtomicIntegerFieldUpdaterTest.class));
192	<	suite.addTest(new TestSuite(AtomicIntegerTest.class));
193	<	suite.addTest(new TestSuite(AtomicLongArrayTest.class));
194	<	suite.addTest(new TestSuite(AtomicLongFieldUpdaterTest.class));
195	<	suite.addTest(new TestSuite(AtomicLongTest.class));
196	<	suite.addTest(new TestSuite(AtomicMarkableReferenceTest.class));
197	<	suite.addTest(new TestSuite(AtomicReferenceArrayTest.class));
198	<	suite.addTest(new TestSuite(AtomicReferenceFieldUpdaterTest.class));
199	<	suite.addTest(new TestSuite(AtomicReferenceTest.class));
200	<	suite.addTest(new TestSuite(AtomicStampedReferenceTest.class));
201	<	suite.addTest(new TestSuite(ConcurrentHashMapTest.class));
202	<	suite.addTest(new TestSuite(ConcurrentLinkedQueueTest.class));
203	<	suite.addTest(new TestSuite(ConcurrentSkipListMapTest.class));
204	<	suite.addTest(new TestSuite(ConcurrentSkipListSubMapTest.class));
205	<	suite.addTest(new TestSuite(ConcurrentSkipListSetTest.class));
206	<	suite.addTest(new TestSuite(ConcurrentSkipListSubSetTest.class));
207	<	suite.addTest(new TestSuite(CopyOnWriteArrayListTest.class));
208	<	suite.addTest(new TestSuite(CopyOnWriteArraySetTest.class));
209	<	suite.addTest(new TestSuite(CountDownLatchTest.class));
210	<	suite.addTest(new TestSuite(CyclicBarrierTest.class));
211	<	suite.addTest(new TestSuite(DelayQueueTest.class));
212	<	suite.addTest(new TestSuite(EntryTest.class));
213	<	suite.addTest(new TestSuite(ExchangerTest.class));
214	<	suite.addTest(new TestSuite(ExecutorsTest.class));
215	<	suite.addTest(new TestSuite(ExecutorCompletionServiceTest.class));
216	<	suite.addTest(new TestSuite(FutureTaskTest.class));
217	<	suite.addTest(new TestSuite(LinkedBlockingDequeTest.class));
218	<	suite.addTest(new TestSuite(LinkedBlockingQueueTest.class));
219	<	suite.addTest(new TestSuite(LinkedListTest.class));
220	<	suite.addTest(new TestSuite(LockSupportTest.class));
221	<	suite.addTest(new TestSuite(PriorityBlockingQueueTest.class));
222	<	suite.addTest(new TestSuite(PriorityQueueTest.class));
223	<	suite.addTest(new TestSuite(ReentrantLockTest.class));
224	<	suite.addTest(new TestSuite(ReentrantReadWriteLockTest.class));
225	<	suite.addTest(new TestSuite(ScheduledExecutorTest.class));
226	<	suite.addTest(new TestSuite(ScheduledExecutorSubclassTest.class));
227	<	suite.addTest(new TestSuite(SemaphoreTest.class));
228	<	suite.addTest(new TestSuite(SynchronousQueueTest.class));
229	<	suite.addTest(new TestSuite(SystemTest.class));
230	<	suite.addTest(new TestSuite(ThreadLocalTest.class));
231	<	suite.addTest(new TestSuite(ThreadPoolExecutorTest.class));
232	<	suite.addTest(new TestSuite(ThreadPoolExecutorSubclassTest.class));
233	<	suite.addTest(new TestSuite(ThreadTest.class));
234	<	suite.addTest(new TestSuite(TimeUnitTest.class));
235	<	suite.addTest(new TestSuite(TreeMapTest.class));
236	<	suite.addTest(new TestSuite(TreeSetTest.class));
237	<	suite.addTest(new TestSuite(TreeSubMapTest.class));
238	<	suite.addTest(new TestSuite(TreeSubSetTest.class));
239	<
240	<	return suite;
180	>	public static Test suite() {
181	>	return newTestSuite(
182	>	ForkJoinPoolTest.suite(),
183	>	ForkJoinTaskTest.suite(),
184	>	RecursiveActionTest.suite(),
185	>	RecursiveTaskTest.suite(),
186	>	LinkedTransferQueueTest.suite(),
187	>	PhaserTest.suite(),
188	>	ThreadLocalRandomTest.suite(),
189	>	AbstractExecutorServiceTest.suite(),
190	>	AbstractQueueTest.suite(),
191	>	AbstractQueuedSynchronizerTest.suite(),
192	>	AbstractQueuedLongSynchronizerTest.suite(),
193	>	ArrayBlockingQueueTest.suite(),
194	>	ArrayDequeTest.suite(),
195	>	AtomicBooleanTest.suite(),
196	>	AtomicIntegerArrayTest.suite(),
197	>	AtomicIntegerFieldUpdaterTest.suite(),
198	>	AtomicIntegerTest.suite(),
199	>	AtomicLongArrayTest.suite(),
200	>	AtomicLongFieldUpdaterTest.suite(),
201	>	AtomicLongTest.suite(),
202	>	AtomicMarkableReferenceTest.suite(),
203	>	AtomicReferenceArrayTest.suite(),
204	>	AtomicReferenceFieldUpdaterTest.suite(),
205	>	AtomicReferenceTest.suite(),
206	>	AtomicStampedReferenceTest.suite(),
207	>	ConcurrentHashMapTest.suite(),
208	>	ConcurrentLinkedDequeTest.suite(),
209	>	ConcurrentLinkedQueueTest.suite(),
210	>	ConcurrentSkipListMapTest.suite(),
211	>	ConcurrentSkipListSubMapTest.suite(),
212	>	ConcurrentSkipListSetTest.suite(),
213	>	ConcurrentSkipListSubSetTest.suite(),
214	>	CopyOnWriteArrayListTest.suite(),
215	>	CopyOnWriteArraySetTest.suite(),
216	>	CountDownLatchTest.suite(),
217	>	CyclicBarrierTest.suite(),
218	>	DelayQueueTest.suite(),
219	>	EntryTest.suite(),
220	>	ExchangerTest.suite(),
221	>	ExecutorsTest.suite(),
222	>	ExecutorCompletionServiceTest.suite(),
223	>	FutureTaskTest.suite(),
224	>	LinkedBlockingDequeTest.suite(),
225	>	LinkedBlockingQueueTest.suite(),
226	>	LinkedListTest.suite(),
227	>	LockSupportTest.suite(),
228	>	PriorityBlockingQueueTest.suite(),
229	>	PriorityQueueTest.suite(),
230	>	ReentrantLockTest.suite(),
231	>	ReentrantReadWriteLockTest.suite(),
232	>	ScheduledExecutorTest.suite(),
233	>	ScheduledExecutorSubclassTest.suite(),
234	>	SemaphoreTest.suite(),
235	>	SynchronousQueueTest.suite(),
236	>	SystemTest.suite(),
237	>	ThreadLocalTest.suite(),
238	>	ThreadPoolExecutorTest.suite(),
239	>	ThreadPoolExecutorSubclassTest.suite(),
240	>	ThreadTest.suite(),
241	>	TimeUnitTest.suite(),
242	>	TreeMapTest.suite(),
243	>	TreeSetTest.suite(),
244	>	TreeSubMapTest.suite(),
245	>	TreeSubSetTest.suite());
246		}
247
248
#	Line 183 | Line 260 | public class JSR166TestCase extends Test
260		return 50;
261		}
262
186	–
263		/**
264		* Sets delays as multiples of SHORT_DELAY.
265		*/
266	<	protected  void setDelays() {
266	>	protected void setDelays() {
267		SHORT_DELAY_MS = getShortDelay();
268	<	SMALL_DELAY_MS = SHORT_DELAY_MS * 5;
268	>	SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
269		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
270	<	LONG_DELAY_MS = SHORT_DELAY_MS * 50;
270	>	LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
271	>	}
272	>
273	>	/**
274	>	* Returns a timeout in milliseconds to be used in tests that
275	>	* verify that operations block or time out.
276	>	*/
277	>	long timeoutMillis() {
278	>	return SHORT_DELAY_MS / 4;
279	>	}
280	>
281	>	/**
282	>	* Returns a new Date instance representing a time delayMillis
283	>	* milliseconds in the future.
284	>	*/
285	>	Date delayedDate(long delayMillis) {
286	>	return new Date(System.currentTimeMillis() + delayMillis);
287		}
288
289		/**
290	<	* Flag set true if any threadAssert methods fail
290	>	* The first exception encountered if any threadAssertXXX method fails.
291		*/
292	<	volatile boolean threadFailed;
292	>	private final AtomicReference<Throwable> threadFailure
293	>	= new AtomicReference<Throwable>(null);
294
295		/**
296	<	* Initializes test to indicate that no thread assertions have failed
296	>	* Records an exception so that it can be rethrown later in the test
297	>	* harness thread, triggering a test case failure.  Only the first
298	>	* failure is recorded; subsequent calls to this method from within
299	>	* the same test have no effect.
300		*/
301	+	public void threadRecordFailure(Throwable t) {
302	+	threadFailure.compareAndSet(null, t);
303	+	}
304	+
305		public void setUp() {
306		setDelays();
207	–	threadFailed = false;
307		}
308
309		/**
310	<	* Triggers test case failure if any thread assertions have failed
311	<	*/
312	<	public void tearDown() {
313	<	assertFalse(threadFailed);
310	>	* Triggers test case failure if any thread assertions have failed,
311	>	* by rethrowing, in the test harness thread, any exception recorded
312	>	* earlier by threadRecordFailure.
313	>	*/
314	>	public void tearDown() throws Exception {
315	>	Throwable t = threadFailure.getAndSet(null);
316	>	if (t != null) {
317	>	if (t instanceof Error)
318	>	throw (Error) t;
319	>	else if (t instanceof RuntimeException)
320	>	throw (RuntimeException) t;
321	>	else if (t instanceof Exception)
322	>	throw (Exception) t;
323	>	else {
324	>	AssertionFailedError afe =
325	>	new AssertionFailedError(t.toString());
326	>	afe.initCause(t);
327	>	throw afe;
328	>	}
329	>	}
330		}
331
332		/**
333	<	* Fail, also setting status to indicate current testcase should fail
333	>	* Just like fail(reason), but additionally recording (using
334	>	* threadRecordFailure) any AssertionFailedError thrown, so that
335	>	* the current testcase will fail.
336		*/
337		public void threadFail(String reason) {
338	<	threadFailed = true;
339	<	fail(reason);
338	>	try {
339	>	fail(reason);
340	>	} catch (AssertionFailedError t) {
341	>	threadRecordFailure(t);
342	>	fail(reason);
343	>	}
344		}
345
346		/**
347	<	* If expression not true, set status to indicate current testcase
348	<	* should fail
347	>	* Just like assertTrue(b), but additionally recording (using
348	>	* threadRecordFailure) any AssertionFailedError thrown, so that
349	>	* the current testcase will fail.
350		*/
351		public void threadAssertTrue(boolean b) {
352	<	if (!b) {
231	<	threadFailed = true;
352	>	try {
353		assertTrue(b);
354	+	} catch (AssertionFailedError t) {
355	+	threadRecordFailure(t);
356	+	throw t;
357		}
358		}
359
360		/**
361	<	* If expression not false, set status to indicate current testcase
362	<	* should fail
361	>	* Just like assertFalse(b), but additionally recording (using
362	>	* threadRecordFailure) any AssertionFailedError thrown, so that
363	>	* the current testcase will fail.
364		*/
365		public void threadAssertFalse(boolean b) {
366	<	if (b) {
242	<	threadFailed = true;
366	>	try {
367		assertFalse(b);
368	+	} catch (AssertionFailedError t) {
369	+	threadRecordFailure(t);
370	+	throw t;
371		}
372		}
373
374		/**
375	<	* If argument not null, set status to indicate current testcase
376	<	* should fail
375	>	* Just like assertNull(x), but additionally recording (using
376	>	* threadRecordFailure) any AssertionFailedError thrown, so that
377	>	* the current testcase will fail.
378		*/
379		public void threadAssertNull(Object x) {
380	<	if (x != null) {
253	<	threadFailed = true;
380	>	try {
381		assertNull(x);
382	+	} catch (AssertionFailedError t) {
383	+	threadRecordFailure(t);
384	+	throw t;
385		}
386		}
387
388		/**
389	<	* If arguments not equal, set status to indicate current testcase
390	<	* should fail
389	>	* Just like assertEquals(x, y), but additionally recording (using
390	>	* threadRecordFailure) any AssertionFailedError thrown, so that
391	>	* the current testcase will fail.
392		*/
393		public void threadAssertEquals(long x, long y) {
394	<	if (x != y) {
264	<	threadFailed = true;
394	>	try {
395		assertEquals(x, y);
396	+	} catch (AssertionFailedError t) {
397	+	threadRecordFailure(t);
398	+	throw t;
399		}
400		}
401
402		/**
403	<	* If arguments not equal, set status to indicate current testcase
404	<	* should fail
403	>	* Just like assertEquals(x, y), but additionally recording (using
404	>	* threadRecordFailure) any AssertionFailedError thrown, so that
405	>	* the current testcase will fail.
406		*/
407		public void threadAssertEquals(Object x, Object y) {
408	<	if (x != y && (x == null || !x.equals(y))) {
275	<	threadFailed = true;
408	>	try {
409		assertEquals(x, y);
410	+	} catch (AssertionFailedError t) {
411	+	threadRecordFailure(t);
412	+	throw t;
413	+	} catch (Throwable t) {
414	+	threadUnexpectedException(t);
415		}
416		}
417
418		/**
419	<	* threadFail with message "should throw exception"
419	>	* Just like assertSame(x, y), but additionally recording (using
420	>	* threadRecordFailure) any AssertionFailedError thrown, so that
421	>	* the current testcase will fail.
422	>	*/
423	>	public void threadAssertSame(Object x, Object y) {
424	>	try {
425	>	assertSame(x, y);
426	>	} catch (AssertionFailedError t) {
427	>	threadRecordFailure(t);
428	>	throw t;
429	>	}
430	>	}
431	>
432	>	/**
433	>	* Calls threadFail with message "should throw exception".
434		*/
435		public void threadShouldThrow() {
436	<	threadFailed = true;
285	<	fail("should throw exception");
436	>	threadFail("should throw exception");
437		}
438
439		/**
440	<	* threadFail with message "Unexpected exception"
440	>	* Calls threadFail with message "should throw" + exceptionName.
441		*/
442	<	public void threadUnexpectedException() {
443	<	threadFailed = true;
293	<	fail("Unexpected exception");
442	>	public void threadShouldThrow(String exceptionName) {
443	>	threadFail("should throw " + exceptionName);
444		}
445
446	+	/**
447	+	* Records the given exception using {@link #threadRecordFailure},
448	+	* then rethrows the exception, wrapping it in an
449	+	* AssertionFailedError if necessary.
450	+	*/
451	+	public void threadUnexpectedException(Throwable t) {
452	+	threadRecordFailure(t);
453	+	t.printStackTrace();
454	+	if (t instanceof RuntimeException)
455	+	throw (RuntimeException) t;
456	+	else if (t instanceof Error)
457	+	throw (Error) t;
458	+	else {
459	+	AssertionFailedError afe =
460	+	new AssertionFailedError("unexpected exception: " + t);
461	+	afe.initCause(t);
462	+	throw afe;
463	+	}
464	+	}
465
466		/**
467	<	* Wait out termination of a thread pool or fail doing so
467	>	* Delays, via Thread.sleep, for the given millisecond delay, but
468	>	* if the sleep is shorter than specified, may re-sleep or yield
469	>	* until time elapses.
470		*/
471	<	public void joinPool(ExecutorService exec) {
471	>	static void delay(long millis) throws InterruptedException {
472	>	long startTime = System.nanoTime();
473	>	long ns = millis * 1000 * 1000;
474	>	for (;;) {
475	>	if (millis > 0L)
476	>	Thread.sleep(millis);
477	>	else // too short to sleep
478	>	Thread.yield();
479	>	long d = ns - (System.nanoTime() - startTime);
480	>	if (d > 0L)
481	>	millis = d / (1000 * 1000);
482	>	else
483	>	break;
484	>	}
485	>	}
486	>
487	>	/**
488	>	* Waits out termination of a thread pool or fails doing so.
489	>	*/
490	>	void joinPool(ExecutorService exec) {
491		try {
492		exec.shutdown();
493	<	assertTrue(exec.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
494	<	} catch(SecurityException ok) {
493	>	assertTrue("ExecutorService did not terminate in a timely manner",
494	>	exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS));
495	>	} catch (SecurityException ok) {
496		// Allowed in case test doesn't have privs
497	<	} catch(InterruptedException ie) {
498	<	fail("Unexpected exception");
497	>	} catch (InterruptedException ie) {
498	>	fail("Unexpected InterruptedException");
499	>	}
500	>	}
501	>
502	>	/**
503	>	* Checks that thread does not terminate within the default
504	>	* millisecond delay of {@code timeoutMillis()}.
505	>	*/
506	>	void assertThreadStaysAlive(Thread thread) {
507	>	assertThreadStaysAlive(thread, timeoutMillis());
508	>	}
509	>
510	>	/**
511	>	* Checks that thread does not terminate within the given millisecond delay.
512	>	*/
513	>	void assertThreadStaysAlive(Thread thread, long millis) {
514	>	try {
515	>	// No need to optimize the failing case via Thread.join.
516	>	delay(millis);
517	>	assertTrue(thread.isAlive());
518	>	} catch (InterruptedException ie) {
519	>	fail("Unexpected InterruptedException");
520		}
521		}
522
523	+	/**
524	+	* Checks that future.get times out, with the default timeout of
525	+	* {@code timeoutMillis()}.
526	+	*/
527	+	void assertFutureTimesOut(Future future) {
528	+	assertFutureTimesOut(future, timeoutMillis());
529	+	}
530	+
531	+	/**
532	+	* Checks that future.get times out, with the given millisecond timeout.
533	+	*/
534	+	void assertFutureTimesOut(Future future, long timeoutMillis) {
535	+	long startTime = System.nanoTime();
536	+	try {
537	+	future.get(timeoutMillis, MILLISECONDS);
538	+	shouldThrow();
539	+	} catch (TimeoutException success) {
540	+	} catch (Exception e) {
541	+	threadUnexpectedException(e);
542	+	} finally { future.cancel(true); }
543	+	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
544	+	}
545
546		/**
547	<	* fail with message "should throw exception"
547	>	* Fails with message "should throw exception".
548		*/
549		public void shouldThrow() {
550		fail("Should throw exception");
551		}
552
553		/**
554	<	* fail with message "Unexpected exception"
554	>	* Fails with message "should throw " + exceptionName.
555		*/
556	<	public void unexpectedException() {
557	<	fail("Unexpected exception");
556	>	public void shouldThrow(String exceptionName) {
557	>	fail("Should throw " + exceptionName);
558		}
559
326	–
560		/**
561		* The number of elements to place in collections, arrays, etc.
562		*/
563	<	static final int SIZE = 20;
563	>	public static final int SIZE = 20;
564
565		// Some convenient Integer constants
566
567	<	static final Integer zero = new Integer(0);
568	<	static final Integer one = new Integer(1);
569	<	static final Integer two = new Integer(2);
570	<	static final Integer three  = new Integer(3);
571	<	static final Integer four  = new Integer(4);
572	<	static final Integer five  = new Integer(5);
573	<	static final Integer six = new Integer(6);
574	<	static final Integer seven = new Integer(7);
575	<	static final Integer eight = new Integer(8);
576	<	static final Integer nine = new Integer(9);
577	<	static final Integer m1  = new Integer(-1);
578	<	static final Integer m2  = new Integer(-2);
579	<	static final Integer m3  = new Integer(-3);
580	<	static final Integer m4 = new Integer(-4);
581	<	static final Integer m5 = new Integer(-5);
582	<	static final Integer m6 = new Integer(-6);
583	<	static final Integer m10 = new Integer(-10);
567	>	public static final Integer zero  = new Integer(0);
568	>	public static final Integer one   = new Integer(1);
569	>	public static final Integer two   = new Integer(2);
570	>	public static final Integer three = new Integer(3);
571	>	public static final Integer four  = new Integer(4);
572	>	public static final Integer five  = new Integer(5);
573	>	public static final Integer six   = new Integer(6);
574	>	public static final Integer seven = new Integer(7);
575	>	public static final Integer eight = new Integer(8);
576	>	public static final Integer nine  = new Integer(9);
577	>	public static final Integer m1  = new Integer(-1);
578	>	public static final Integer m2  = new Integer(-2);
579	>	public static final Integer m3  = new Integer(-3);
580	>	public static final Integer m4  = new Integer(-4);
581	>	public static final Integer m5  = new Integer(-5);
582	>	public static final Integer m6  = new Integer(-6);
583	>	public static final Integer m10 = new Integer(-10);
584	>
585
586	+	/**
587	+	* Runs Runnable r with a security policy that permits precisely
588	+	* the specified permissions.  If there is no current security
589	+	* manager, the runnable is run twice, both with and without a
590	+	* security manager.  We require that any security manager permit
591	+	* getPolicy/setPolicy.
592	+	*/
593	+	public void runWithPermissions(Runnable r, Permission... permissions) {
594	+	SecurityManager sm = System.getSecurityManager();
595	+	if (sm == null) {
596	+	r.run();
597	+	Policy savedPolicy = Policy.getPolicy();
598	+	try {
599	+	Policy.setPolicy(permissivePolicy());
600	+	System.setSecurityManager(new SecurityManager());
601	+	runWithPermissions(r, permissions);
602	+	} finally {
603	+	System.setSecurityManager(null);
604	+	Policy.setPolicy(savedPolicy);
605	+	}
606	+	} else {
607	+	Policy savedPolicy = Policy.getPolicy();
608	+	AdjustablePolicy policy = new AdjustablePolicy(permissions);
609	+	Policy.setPolicy(policy);
610	+
611	+	try {
612	+	r.run();
613	+	} finally {
614	+	policy.addPermission(new SecurityPermission("setPolicy"));
615	+	Policy.setPolicy(savedPolicy);
616	+	}
617	+	}
618	+	}
619	+
620	+	/**
621	+	* Runs a runnable without any permissions.
622	+	*/
623	+	public void runWithoutPermissions(Runnable r) {
624	+	runWithPermissions(r);
625	+	}
626
627		/**
628		* A security policy where new permissions can be dynamically added
629		* or all cleared.
630		*/
631	<	static class AdjustablePolicy extends java.security.Policy {
631	>	public static class AdjustablePolicy extends java.security.Policy {
632		Permissions perms = new Permissions();
633	<	AdjustablePolicy() { }
633	>	AdjustablePolicy(Permission... permissions) {
634	>	for (Permission permission : permissions)
635	>	perms.add(permission);
636	>	}
637		void addPermission(Permission perm) { perms.add(perm); }
638		void clearPermissions() { perms = new Permissions(); }
639	<	public PermissionCollection getPermissions(CodeSource cs) {
640	<	return perms;
641	<	}
642	<	public PermissionCollection getPermissions(ProtectionDomain pd) {
643	<	return perms;
644	<	}
645	<	public boolean implies(ProtectionDomain pd, Permission p) {
646	<	return perms.implies(p);
647	<	}
648	<	public void refresh() {}
639	>	public PermissionCollection getPermissions(CodeSource cs) {
640	>	return perms;
641	>	}
642	>	public PermissionCollection getPermissions(ProtectionDomain pd) {
643	>	return perms;
644	>	}
645	>	public boolean implies(ProtectionDomain pd, Permission p) {
646	>	return perms.implies(p);
647	>	}
648	>	public void refresh() {}
649		}
650
651	+	/**
652	+	* Returns a policy containing all the permissions we ever need.
653	+	*/
654	+	public static Policy permissivePolicy() {
655	+	return new AdjustablePolicy
656	+	// Permissions j.u.c. needs directly
657	+	(new RuntimePermission("modifyThread"),
658	+	new RuntimePermission("getClassLoader"),
659	+	new RuntimePermission("setContextClassLoader"),
660	+	// Permissions needed to change permissions!
661	+	new SecurityPermission("getPolicy"),
662	+	new SecurityPermission("setPolicy"),
663	+	new RuntimePermission("setSecurityManager"),
664	+	// Permissions needed by the junit test harness
665	+	new RuntimePermission("accessDeclaredMembers"),
666	+	new PropertyPermission("*", "read"),
667	+	new java.io.FilePermission("<<ALL FILES>>", "read"));
668	+	}
669
670	<	// Some convenient Runnable classes
670	>	/**
671	>	* Sleeps until the given time has elapsed.
672	>	* Throws AssertionFailedError if interrupted.
673	>	*/
674	>	void sleep(long millis) {
675	>	try {
676	>	delay(millis);
677	>	} catch (InterruptedException ie) {
678	>	AssertionFailedError afe =
679	>	new AssertionFailedError("Unexpected InterruptedException");
680	>	afe.initCause(ie);
681	>	throw afe;
682	>	}
683	>	}
684
685	<	static class NoOpRunnable implements Runnable {
686	<	public void run() {}
685	>	/**
686	>	* Waits up to the specified number of milliseconds for the given
687	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
688	>	*/
689	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
690	>	long timeoutNanos = timeoutMillis * 1000L * 1000L;
691	>	long t0 = System.nanoTime();
692	>	for (;;) {
693	>	Thread.State s = thread.getState();
694	>	if (s == Thread.State.BLOCKED ||
695	>	s == Thread.State.WAITING ||
696	>	s == Thread.State.TIMED_WAITING)
697	>	return;
698	>	else if (s == Thread.State.TERMINATED)
699	>	fail("Unexpected thread termination");
700	>	else if (System.nanoTime() - t0 > timeoutNanos) {
701	>	threadAssertTrue(thread.isAlive());
702	>	return;
703	>	}
704	>	Thread.yield();
705	>	}
706		}
707
708	<	static class NoOpCallable implements Callable {
709	<	public Object call() { return Boolean.TRUE; }
708	>	/**
709	>	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
710	>	* state: BLOCKED, WAITING, or TIMED_WAITING.
711	>	*/
712	>	void waitForThreadToEnterWaitState(Thread thread) {
713	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
714		}
715
716	<	static final String TEST_STRING = "a test string";
716	>	/**
717	>	* Returns the number of milliseconds since time given by
718	>	* startNanoTime, which must have been previously returned from a
719	>	* call to {@link System.nanoTime()}.
720	>	*/
721	>	long millisElapsedSince(long startNanoTime) {
722	>	return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
723	>	}
724
725	<	static class StringTask implements Callable<String> {
726	<	public String call() { return TEST_STRING; }
725	>	/**
726	>	* Returns a new started daemon Thread running the given runnable.
727	>	*/
728	>	Thread newStartedThread(Runnable runnable) {
729	>	Thread t = new Thread(runnable);
730	>	t.setDaemon(true);
731	>	t.start();
732	>	return t;
733		}
734
735	<	static class NPETask implements Callable<String> {
736	<	public String call() { throw new NullPointerException(); }
735	>	/**
736	>	* Waits for the specified time (in milliseconds) for the thread
737	>	* to terminate (using {@link Thread#join(long)}), else interrupts
738	>	* the thread (in the hope that it may terminate later) and fails.
739	>	*/
740	>	void awaitTermination(Thread t, long timeoutMillis) {
741	>	try {
742	>	t.join(timeoutMillis);
743	>	} catch (InterruptedException ie) {
744	>	threadUnexpectedException(ie);
745	>	} finally {
746	>	if (t.getState() != Thread.State.TERMINATED) {
747	>	t.interrupt();
748	>	fail("Test timed out");
749	>	}
750	>	}
751		}
752
753	<	static class CallableOne implements Callable<Integer> {
754	<	public Integer call() { return one; }
753	>	/**
754	>	* Waits for LONG_DELAY_MS milliseconds for the thread to
755	>	* terminate (using {@link Thread#join(long)}), else interrupts
756	>	* the thread (in the hope that it may terminate later) and fails.
757	>	*/
758	>	void awaitTermination(Thread t) {
759	>	awaitTermination(t, LONG_DELAY_MS);
760		}
761
762	<	class ShortRunnable implements Runnable {
763	<	public void run() {
762	>	// Some convenient Runnable classes
763	>
764	>	public abstract class CheckedRunnable implements Runnable {
765	>	protected abstract void realRun() throws Throwable;
766	>
767	>	public final void run() {
768		try {
769	<	Thread.sleep(SHORT_DELAY_MS);
770	<	}
771	<	catch(Exception e) {
405	<	threadUnexpectedException();
769	>	realRun();
770	>	} catch (Throwable t) {
771	>	threadUnexpectedException(t);
772		}
773		}
774		}
775
776	<	class ShortInterruptedRunnable implements Runnable {
777	<	public void run() {
776	>	public abstract class RunnableShouldThrow implements Runnable {
777	>	protected abstract void realRun() throws Throwable;
778	>
779	>	final Class<?> exceptionClass;
780	>
781	>	<T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) {
782	>	this.exceptionClass = exceptionClass;
783	>	}
784	>
785	>	public final void run() {
786		try {
787	<	Thread.sleep(SHORT_DELAY_MS);
788	<	threadShouldThrow();
789	<	}
790	<	catch(InterruptedException success) {
787	>	realRun();
788	>	threadShouldThrow(exceptionClass.getSimpleName());
789	>	} catch (Throwable t) {
790	>	if (! exceptionClass.isInstance(t))
791	>	threadUnexpectedException(t);
792		}
793		}
794		}
795
796	<	class SmallRunnable implements Runnable {
797	<	public void run() {
796	>	public abstract class ThreadShouldThrow extends Thread {
797	>	protected abstract void realRun() throws Throwable;
798	>
799	>	final Class<?> exceptionClass;
800	>
801	>	<T extends Throwable> ThreadShouldThrow(Class<T> exceptionClass) {
802	>	this.exceptionClass = exceptionClass;
803	>	}
804	>
805	>	public final void run() {
806		try {
807	<	Thread.sleep(SMALL_DELAY_MS);
808	<	}
809	<	catch(Exception e) {
810	<	threadUnexpectedException();
807	>	realRun();
808	>	threadShouldThrow(exceptionClass.getSimpleName());
809	>	} catch (Throwable t) {
810	>	if (! exceptionClass.isInstance(t))
811	>	threadUnexpectedException(t);
812		}
813		}
814		}
815
816	<	class SmallPossiblyInterruptedRunnable implements Runnable {
817	<	public void run() {
816	>	public abstract class CheckedInterruptedRunnable implements Runnable {
817	>	protected abstract void realRun() throws Throwable;
818	>
819	>	public final void run() {
820		try {
821	<	Thread.sleep(SMALL_DELAY_MS);
822	<	}
823	<	catch(Exception e) {
821	>	realRun();
822	>	threadShouldThrow("InterruptedException");
823	>	} catch (InterruptedException success) {
824	>	threadAssertFalse(Thread.interrupted());
825	>	} catch (Throwable t) {
826	>	threadUnexpectedException(t);
827		}
828		}
829		}
830
831	<	class SmallCallable implements Callable {
832	<	public Object call() {
831	>	public abstract class CheckedCallable<T> implements Callable<T> {
832	>	protected abstract T realCall() throws Throwable;
833	>
834	>	public final T call() {
835		try {
836	<	Thread.sleep(SMALL_DELAY_MS);
836	>	return realCall();
837	>	} catch (Throwable t) {
838	>	threadUnexpectedException(t);
839	>	return null;
840		}
447	–	catch(Exception e) {
448	–	threadUnexpectedException();
449	–	}
450	–	return Boolean.TRUE;
841		}
842		}
843
844	<	class SmallInterruptedRunnable implements Runnable {
845	<	public void run() {
844	>	public abstract class CheckedInterruptedCallable<T>
845	>	implements Callable<T> {
846	>	protected abstract T realCall() throws Throwable;
847	>
848	>	public final T call() {
849		try {
850	<	Thread.sleep(SMALL_DELAY_MS);
851	<	threadShouldThrow();
852	<	}
853	<	catch(InterruptedException success) {
850	>	T result = realCall();
851	>	threadShouldThrow("InterruptedException");
852	>	return result;
853	>	} catch (InterruptedException success) {
854	>	threadAssertFalse(Thread.interrupted());
855	>	} catch (Throwable t) {
856	>	threadUnexpectedException(t);
857		}
858	+	return null;
859		}
860		}
861
862	+	public static class NoOpRunnable implements Runnable {
863	+	public void run() {}
864	+	}
865
866	<	class MediumRunnable implements Runnable {
867	<	public void run() {
868	<	try {
869	<	Thread.sleep(MEDIUM_DELAY_MS);
870	<	}
871	<	catch(Exception e) {
872	<	threadUnexpectedException();
873	<	}
866	>	public static class NoOpCallable implements Callable {
867	>	public Object call() { return Boolean.TRUE; }
868	>	}
869	>
870	>	public static final String TEST_STRING = "a test string";
871	>
872	>	public static class StringTask implements Callable<String> {
873	>	public String call() { return TEST_STRING; }
874	>	}
875	>
876	>	public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
877	>	return new CheckedCallable<String>() {
878	>	protected String realCall() {
879	>	try {
880	>	latch.await();
881	>	} catch (InterruptedException quittingTime) {}
882	>	return TEST_STRING;
883	>	}};
884	>	}
885	>
886	>	public Runnable awaiter(final CountDownLatch latch) {
887	>	return new CheckedRunnable() {
888	>	public void realRun() throws InterruptedException {
889	>	await(latch);
890	>	}};
891	>	}
892	>
893	>	public void await(CountDownLatch latch) {
894	>	try {
895	>	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
896	>	} catch (Throwable t) {
897	>	threadUnexpectedException(t);
898		}
899		}
900
901	<	class MediumInterruptedRunnable implements Runnable {
902	<	public void run() {
901	>	//     /**
902	>	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
903	>	//      */
904	>	//     public void await(AtomicBoolean flag) {
905	>	//         await(flag, LONG_DELAY_MS);
906	>	//     }
907	>
908	>	//     /**
909	>	//      * Spin-waits up to the specified timeout until flag becomes true.
910	>	//      */
911	>	//     public void await(AtomicBoolean flag, long timeoutMillis) {
912	>	//         long startTime = System.nanoTime();
913	>	//         while (!flag.get()) {
914	>	//             if (millisElapsedSince(startTime) > timeoutMillis)
915	>	//                 throw new AssertionFailedError("timed out");
916	>	//             Thread.yield();
917	>	//         }
918	>	//     }
919	>
920	>	public static class NPETask implements Callable<String> {
921	>	public String call() { throw new NullPointerException(); }
922	>	}
923	>
924	>	public static class CallableOne implements Callable<Integer> {
925	>	public Integer call() { return one; }
926	>	}
927	>
928	>	public class ShortRunnable extends CheckedRunnable {
929	>	protected void realRun() throws Throwable {
930	>	delay(SHORT_DELAY_MS);
931	>	}
932	>	}
933	>
934	>	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
935	>	protected void realRun() throws InterruptedException {
936	>	delay(SHORT_DELAY_MS);
937	>	}
938	>	}
939	>
940	>	public class SmallRunnable extends CheckedRunnable {
941	>	protected void realRun() throws Throwable {
942	>	delay(SMALL_DELAY_MS);
943	>	}
944	>	}
945	>
946	>	public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
947	>	protected void realRun() {
948		try {
949	<	Thread.sleep(MEDIUM_DELAY_MS);
950	<	threadShouldThrow();
482	<	}
483	<	catch(InterruptedException success) {
484	<	}
949	>	delay(SMALL_DELAY_MS);
950	>	} catch (InterruptedException ok) {}
951		}
952		}
953
954	<	class MediumPossiblyInterruptedRunnable implements Runnable {
955	<	public void run() {
954	>	public class SmallCallable extends CheckedCallable {
955	>	protected Object realCall() throws InterruptedException {
956	>	delay(SMALL_DELAY_MS);
957	>	return Boolean.TRUE;
958	>	}
959	>	}
960	>
961	>	public class MediumRunnable extends CheckedRunnable {
962	>	protected void realRun() throws Throwable {
963	>	delay(MEDIUM_DELAY_MS);
964	>	}
965	>	}
966	>
967	>	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
968	>	protected void realRun() throws InterruptedException {
969	>	delay(MEDIUM_DELAY_MS);
970	>	}
971	>	}
972	>
973	>	public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
974	>	return new CheckedRunnable() {
975	>	protected void realRun() {
976	>	try {
977	>	delay(timeoutMillis);
978	>	} catch (InterruptedException ok) {}
979	>	}};
980	>	}
981	>
982	>	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
983	>	protected void realRun() {
984		try {
985	<	Thread.sleep(MEDIUM_DELAY_MS);
986	<	}
493	<	catch(InterruptedException success) {
494	<	}
985	>	delay(MEDIUM_DELAY_MS);
986	>	} catch (InterruptedException ok) {}
987		}
988		}
989
990	<	class LongPossiblyInterruptedRunnable implements Runnable {
991	<	public void run() {
990	>	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
991	>	protected void realRun() {
992		try {
993	<	Thread.sleep(LONG_DELAY_MS);
994	<	}
503	<	catch(InterruptedException success) {
504	<	}
993	>	delay(LONG_DELAY_MS);
994	>	} catch (InterruptedException ok) {}
995		}
996		}
997
998		/**
999		* For use as ThreadFactory in constructors
1000		*/
1001	<	static class SimpleThreadFactory implements ThreadFactory{
1002	<	public Thread newThread(Runnable r){
1001	>	public static class SimpleThreadFactory implements ThreadFactory {
1002	>	public Thread newThread(Runnable r) {
1003		return new Thread(r);
1004		}
1005		}
1006
1007	<	static class TrackedShortRunnable implements Runnable {
1008	<	volatile boolean done = false;
1007	>	public interface TrackedRunnable extends Runnable {
1008	>	boolean isDone();
1009	>	}
1010	>
1011	>	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1012	>	return new TrackedRunnable() {
1013	>	private volatile boolean done = false;
1014	>	public boolean isDone() { return done; }
1015	>	public void run() {
1016	>	try {
1017	>	delay(timeoutMillis);
1018	>	done = true;
1019	>	} catch (InterruptedException ok) {}
1020	>	}
1021	>	};
1022	>	}
1023	>
1024	>	public static class TrackedShortRunnable implements Runnable {
1025	>	public volatile boolean done = false;
1026		public void run() {
1027		try {
1028	<	Thread.sleep(SMALL_DELAY_MS);
1028	>	delay(SHORT_DELAY_MS);
1029		done = true;
1030	<	} catch(Exception e){
524	<	}
1030	>	} catch (InterruptedException ok) {}
1031		}
1032		}
1033
1034	<	static class TrackedMediumRunnable implements Runnable {
1035	<	volatile boolean done = false;
1034	>	public static class TrackedSmallRunnable implements Runnable {
1035	>	public volatile boolean done = false;
1036		public void run() {
1037		try {
1038	<	Thread.sleep(MEDIUM_DELAY_MS);
1038	>	delay(SMALL_DELAY_MS);
1039		done = true;
1040	<	} catch(Exception e){
535	<	}
1040	>	} catch (InterruptedException ok) {}
1041		}
1042		}
1043
1044	<	static class TrackedLongRunnable implements Runnable {
1045	<	volatile boolean done = false;
1044	>	public static class TrackedMediumRunnable implements Runnable {
1045	>	public volatile boolean done = false;
1046		public void run() {
1047		try {
1048	<	Thread.sleep(LONG_DELAY_MS);
1048	>	delay(MEDIUM_DELAY_MS);
1049		done = true;
1050	<	} catch(Exception e){
546	<	}
1050	>	} catch (InterruptedException ok) {}
1051		}
1052		}
1053
1054	<	static class TrackedNoOpRunnable implements Runnable {
1055	<	volatile boolean done = false;
1054	>	public static class TrackedLongRunnable implements Runnable {
1055	>	public volatile boolean done = false;
1056	>	public void run() {
1057	>	try {
1058	>	delay(LONG_DELAY_MS);
1059	>	done = true;
1060	>	} catch (InterruptedException ok) {}
1061	>	}
1062	>	}
1063	>
1064	>	public static class TrackedNoOpRunnable implements Runnable {
1065	>	public volatile boolean done = false;
1066		public void run() {
1067		done = true;
1068		}
1069		}
1070
1071	<	static class TrackedCallable implements Callable {
1072	<	volatile boolean done = false;
1071	>	public static class TrackedCallable implements Callable {
1072	>	public volatile boolean done = false;
1073		public Object call() {
1074		try {
1075	<	Thread.sleep(SMALL_DELAY_MS);
1075	>	delay(SMALL_DELAY_MS);
1076		done = true;
1077	<	} catch(Exception e){
564	<	}
1077	>	} catch (InterruptedException ok) {}
1078		return Boolean.TRUE;
1079		}
1080		}
1081
1082	+	/**
1083	+	* Analog of CheckedRunnable for RecursiveAction
1084	+	*/
1085	+	public abstract class CheckedRecursiveAction extends RecursiveAction {
1086	+	protected abstract void realCompute() throws Throwable;
1087	+
1088	+	public final void compute() {
1089	+	try {
1090	+	realCompute();
1091	+	} catch (Throwable t) {
1092	+	threadUnexpectedException(t);
1093	+	}
1094	+	}
1095	+	}
1096	+
1097	+	/**
1098	+	* Analog of CheckedCallable for RecursiveTask
1099	+	*/
1100	+	public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1101	+	protected abstract T realCompute() throws Throwable;
1102	+
1103	+	public final T compute() {
1104	+	try {
1105	+	return realCompute();
1106	+	} catch (Throwable t) {
1107	+	threadUnexpectedException(t);
1108	+	return null;
1109	+	}
1110	+	}
1111	+	}
1112
1113		/**
1114		* For use as RejectedExecutionHandler in constructors
1115		*/
1116	<	static class NoOpREHandler implements RejectedExecutionHandler{
1117	<	public void rejectedExecution(Runnable r, ThreadPoolExecutor executor){}
1116	>	public static class NoOpREHandler implements RejectedExecutionHandler {
1117	>	public void rejectedExecution(Runnable r,
1118	>	ThreadPoolExecutor executor) {}
1119		}
1120
1121	+	/**
1122	+	* A CyclicBarrier that fails with AssertionFailedErrors instead
1123	+	* of throwing checked exceptions.
1124	+	*/
1125	+	public class CheckedBarrier extends CyclicBarrier {
1126	+	public CheckedBarrier(int parties) { super(parties); }
1127
1128	+	public int await() {
1129	+	try {
1130	+	return super.await();
1131	+	} catch (Exception e) {
1132	+	AssertionFailedError afe =
1133	+	new AssertionFailedError("Unexpected exception: " + e);
1134	+	afe.initCause(e);
1135	+	throw afe;
1136	+	}
1137	+	}
1138	+	}
1139	+
1140	+	void checkEmpty(BlockingQueue q) {
1141	+	try {
1142	+	assertTrue(q.isEmpty());
1143	+	assertEquals(0, q.size());
1144	+	assertNull(q.peek());
1145	+	assertNull(q.poll());
1146	+	assertNull(q.poll(0, MILLISECONDS));
1147	+	assertEquals(q.toString(), "[]");
1148	+	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1149	+	assertFalse(q.iterator().hasNext());
1150	+	try {
1151	+	q.element();
1152	+	shouldThrow();
1153	+	} catch (NoSuchElementException success) {}
1154	+	try {
1155	+	q.iterator().next();
1156	+	shouldThrow();
1157	+	} catch (NoSuchElementException success) {}
1158	+	try {
1159	+	q.remove();
1160	+	shouldThrow();
1161	+	} catch (NoSuchElementException success) {}
1162	+	} catch (InterruptedException ie) {
1163	+	threadUnexpectedException(ie);
1164	+	}
1165	+	}
1166	+
1167	+	@SuppressWarnings("unchecked")
1168	+	<T> T serialClone(T o) {
1169	+	try {
1170	+	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1171	+	ObjectOutputStream oos = new ObjectOutputStream(bos);
1172	+	oos.writeObject(o);
1173	+	oos.flush();
1174	+	oos.close();
1175	+	ByteArrayInputStream bin =
1176	+	new ByteArrayInputStream(bos.toByteArray());
1177	+	ObjectInputStream ois = new ObjectInputStream(bin);
1178	+	return (T) ois.readObject();
1179	+	} catch (Throwable t) {
1180	+	threadUnexpectedException(t);
1181	+	return null;
1182	+	}
1183	+	}
1184		}

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