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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.42 by jsr166, Sat Nov 21 02:07:26 2009 UTC vs.
Revision 1.95 by jsr166, Mon Jan 21 19:43:52 2013 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.ArrayList;
15	>	import java.util.Arrays;
16	>	import java.util.Date;
17	>	import java.util.Enumeration;
18	>	import java.util.List;
19	>	import java.util.NoSuchElementException;
20	>	import java.util.PropertyPermission;
21		import java.util.concurrent.*;
22	+	import java.util.concurrent.atomic.AtomicBoolean;
23	+	import java.util.concurrent.atomic.AtomicReference;
24		import static java.util.concurrent.TimeUnit.MILLISECONDS;
25	<	import java.io.*;
26	<	import java.security.*;
25	>	import static java.util.concurrent.TimeUnit.NANOSECONDS;
26	>	import java.security.CodeSource;
27	>	import java.security.Permission;
28	>	import java.security.PermissionCollection;
29	>	import java.security.Permissions;
30	>	import java.security.Policy;
31	>	import java.security.ProtectionDomain;
32	>	import java.security.SecurityPermission;
33
34		/**
35		* Base class for JSR166 Junit TCK tests.  Defines some constants,
#	Line 26 | Line 44 | import java.security.*;
44		* <li> All assertions in code running in generated threads must use
45		* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link
46		* #threadAssertEquals}, or {@link #threadAssertNull}, (not
47	<	* <tt>fail</tt>, <tt>assertTrue</tt>, etc.) It is OK (but not
47	>	* {@code fail}, {@code assertTrue}, etc.) It is OK (but not
48		* particularly recommended) for other code to use these forms too.
49		* Only the most typically used JUnit assertion methods are defined
50		* this way, but enough to live with.</li>
51		*
52		* <li> If you override {@link #setUp} or {@link #tearDown}, make sure
53	<	* to invoke <tt>super.setUp</tt> and <tt>super.tearDown</tt> within
53	>	* to invoke {@code super.setUp} and {@code super.tearDown} within
54		* them. These methods are used to clear and check for thread
55		* assertion failures.</li>
56		*
57	<	* <li>All delays and timeouts must use one of the constants <tt>
58	<	* SHORT_DELAY_MS</tt>, <tt> SMALL_DELAY_MS</tt>, <tt> MEDIUM_DELAY_MS</tt>,
59	<	* <tt> LONG_DELAY_MS</tt>. The idea here is that a SHORT is always
57	>	* <li>All delays and timeouts must use one of the constants {@code
58	>	* SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS},
59	>	* {@code LONG_DELAY_MS}. The idea here is that a SHORT is always
60		* discriminable from zero time, and always allows enough time for the
61		* small amounts of computation (creating a thread, calling a few
62		* methods, etc) needed to reach a timeout point. Similarly, a SMALL
#	Line 48 | Line 66 | import java.security.*;
66		* in one spot to rerun tests on slower platforms.</li>
67		*
68		* <li> All threads generated must be joined inside each test case
69	<	* method (or <tt>fail</tt> to do so) before returning from the
70	<	* method. The <tt> joinPool</tt> method can be used to do this when
69	>	* method (or {@code fail} to do so) before returning from the
70	>	* method. The {@code joinPool} method can be used to do this when
71		* using Executors.</li>
72		*
73		* </ol>
74		*
75	<	* <p> <b>Other notes</b>
75	>	* <p><b>Other notes</b>
76		* <ul>
77		*
78		* <li> Usually, there is one testcase method per JSR166 method
#	Line 81 | Line 99 | import java.security.*;
99		* any particular package to simplify things for people integrating
100		* them in TCK test suites.</li>
101		*
102	<	* <li> As a convenience, the <tt>main</tt> of this class (JSR166TestCase)
102	>	* <li> As a convenience, the {@code main} of this class (JSR166TestCase)
103		* runs all JSR166 unit tests.</li>
104		*
105		* </ul>
106		*/
107		public class JSR166TestCase extends TestCase {
108	+	private static final boolean useSecurityManager =
109	+	Boolean.getBoolean("jsr166.useSecurityManager");
110	+
111	+	protected static final boolean expensiveTests =
112	+	Boolean.getBoolean("jsr166.expensiveTests");
113	+
114	+	/**
115	+	* If true, report on stdout all "slow" tests, that is, ones that
116	+	* take more than profileThreshold milliseconds to execute.
117	+	*/
118	+	private static final boolean profileTests =
119	+	Boolean.getBoolean("jsr166.profileTests");
120	+
121	+	/**
122	+	* The number of milliseconds that tests are permitted for
123	+	* execution without being reported, when profileTests is set.
124	+	*/
125	+	private static final long profileThreshold =
126	+	Long.getLong("jsr166.profileThreshold", 100);
127	+
128	+	protected void runTest() throws Throwable {
129	+	if (profileTests)
130	+	runTestProfiled();
131	+	else
132	+	super.runTest();
133	+	}
134	+
135	+	protected void runTestProfiled() throws Throwable {
136	+	long t0 = System.nanoTime();
137	+	try {
138	+	super.runTest();
139	+	} finally {
140	+	long elapsedMillis =
141	+	(System.nanoTime() - t0) / (1000L * 1000L);
142	+	if (elapsedMillis >= profileThreshold)
143	+	System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
144	+	}
145	+	}
146	+
147		/**
148	<	* Runs all JSR166 unit tests using junit.textui.TestRunner
148	>	* Runs all JSR166 unit tests using junit.textui.TestRunner.
149	>	* Optional command line arg provides the number of iterations to
150	>	* repeat running the tests.
151		*/
152		public static void main(String[] args) {
153	<	int iters = 1;
154	<	if (args.length > 0)
155	<	iters = Integer.parseInt(args[0]);
153	>	if (useSecurityManager) {
154	>	System.err.println("Setting a permissive security manager");
155	>	Policy.setPolicy(permissivePolicy());
156	>	System.setSecurityManager(new SecurityManager());
157	>	}
158	>	int iters = (args.length == 0) ? 1 : Integer.parseInt(args[0]);
159	>
160		Test s = suite();
161		for (int i = 0; i < iters; ++i) {
162		junit.textui.TestRunner.run(s);
#	Line 103 | Line 166 | public class JSR166TestCase extends Test
166		System.exit(0);
167		}
168
169	+	public static TestSuite newTestSuite(Object... suiteOrClasses) {
170	+	TestSuite suite = new TestSuite();
171	+	for (Object suiteOrClass : suiteOrClasses) {
172	+	if (suiteOrClass instanceof TestSuite)
173	+	suite.addTest((TestSuite) suiteOrClass);
174	+	else if (suiteOrClass instanceof Class)
175	+	suite.addTest(new TestSuite((Class<?>) suiteOrClass));
176	+	else
177	+	throw new ClassCastException("not a test suite or class");
178	+	}
179	+	return suite;
180	+	}
181	+
182		/**
183	<	* Collects all JSR166 unit tests as one suite
183	>	* Collects all JSR166 unit tests as one suite.
184		*/
185		public static Test suite() {
186	<	TestSuite suite = new TestSuite("JSR166 Unit Tests");
187	<
188	<	suite.addTest(new TestSuite(ForkJoinPoolTest.class));
189	<	suite.addTest(new TestSuite(ForkJoinTaskTest.class));
190	<	suite.addTest(new TestSuite(RecursiveActionTest.class));
191	<	suite.addTest(new TestSuite(RecursiveTaskTest.class));
192	<	suite.addTest(new TestSuite(LinkedTransferQueueTest.class));
193	<	suite.addTest(new TestSuite(PhaserTest.class));
194	<	suite.addTest(new TestSuite(ThreadLocalRandomTest.class));
195	<	suite.addTest(new TestSuite(AbstractExecutorServiceTest.class));
196	<	suite.addTest(new TestSuite(AbstractQueueTest.class));
197	<	suite.addTest(new TestSuite(AbstractQueuedSynchronizerTest.class));
198	<	suite.addTest(new TestSuite(AbstractQueuedLongSynchronizerTest.class));
199	<	suite.addTest(new TestSuite(ArrayBlockingQueueTest.class));
200	<	suite.addTest(new TestSuite(ArrayDequeTest.class));
201	<	suite.addTest(new TestSuite(AtomicBooleanTest.class));
202	<	suite.addTest(new TestSuite(AtomicIntegerArrayTest.class));
203	<	suite.addTest(new TestSuite(AtomicIntegerFieldUpdaterTest.class));
204	<	suite.addTest(new TestSuite(AtomicIntegerTest.class));
205	<	suite.addTest(new TestSuite(AtomicLongArrayTest.class));
206	<	suite.addTest(new TestSuite(AtomicLongFieldUpdaterTest.class));
207	<	suite.addTest(new TestSuite(AtomicLongTest.class));
208	<	suite.addTest(new TestSuite(AtomicMarkableReferenceTest.class));
209	<	suite.addTest(new TestSuite(AtomicReferenceArrayTest.class));
210	<	suite.addTest(new TestSuite(AtomicReferenceFieldUpdaterTest.class));
211	<	suite.addTest(new TestSuite(AtomicReferenceTest.class));
212	<	suite.addTest(new TestSuite(AtomicStampedReferenceTest.class));
213	<	suite.addTest(new TestSuite(ConcurrentHashMapTest.class));
214	<	suite.addTest(new TestSuite(ConcurrentLinkedQueueTest.class));
215	<	suite.addTest(new TestSuite(ConcurrentSkipListMapTest.class));
216	<	suite.addTest(new TestSuite(ConcurrentSkipListSubMapTest.class));
217	<	suite.addTest(new TestSuite(ConcurrentSkipListSetTest.class));
218	<	suite.addTest(new TestSuite(ConcurrentSkipListSubSetTest.class));
219	<	suite.addTest(new TestSuite(CopyOnWriteArrayListTest.class));
220	<	suite.addTest(new TestSuite(CopyOnWriteArraySetTest.class));
221	<	suite.addTest(new TestSuite(CountDownLatchTest.class));
222	<	suite.addTest(new TestSuite(CyclicBarrierTest.class));
223	<	suite.addTest(new TestSuite(DelayQueueTest.class));
224	<	suite.addTest(new TestSuite(EntryTest.class));
225	<	suite.addTest(new TestSuite(ExchangerTest.class));
226	<	suite.addTest(new TestSuite(ExecutorsTest.class));
227	<	suite.addTest(new TestSuite(ExecutorCompletionServiceTest.class));
228	<	suite.addTest(new TestSuite(FutureTaskTest.class));
229	<	suite.addTest(new TestSuite(LinkedBlockingDequeTest.class));
230	<	suite.addTest(new TestSuite(LinkedBlockingQueueTest.class));
231	<	suite.addTest(new TestSuite(LinkedListTest.class));
232	<	suite.addTest(new TestSuite(LockSupportTest.class));
233	<	suite.addTest(new TestSuite(PriorityBlockingQueueTest.class));
234	<	suite.addTest(new TestSuite(PriorityQueueTest.class));
235	<	suite.addTest(new TestSuite(ReentrantLockTest.class));
236	<	suite.addTest(new TestSuite(ReentrantReadWriteLockTest.class));
237	<	suite.addTest(new TestSuite(ScheduledExecutorTest.class));
238	<	suite.addTest(new TestSuite(ScheduledExecutorSubclassTest.class));
239	<	suite.addTest(new TestSuite(SemaphoreTest.class));
240	<	suite.addTest(new TestSuite(SynchronousQueueTest.class));
241	<	suite.addTest(new TestSuite(SystemTest.class));
242	<	suite.addTest(new TestSuite(ThreadLocalTest.class));
243	<	suite.addTest(new TestSuite(ThreadPoolExecutorTest.class));
244	<	suite.addTest(new TestSuite(ThreadPoolExecutorSubclassTest.class));
245	<	suite.addTest(new TestSuite(ThreadTest.class));
246	<	suite.addTest(new TestSuite(TimeUnitTest.class));
247	<	suite.addTest(new TestSuite(TreeMapTest.class));
248	<	suite.addTest(new TestSuite(TreeSetTest.class));
249	<	suite.addTest(new TestSuite(TreeSubMapTest.class));
250	<	suite.addTest(new TestSuite(TreeSubSetTest.class));
175	<
176	<	return suite;
186	>	return newTestSuite(
187	>	ForkJoinPoolTest.suite(),
188	>	ForkJoinTaskTest.suite(),
189	>	RecursiveActionTest.suite(),
190	>	RecursiveTaskTest.suite(),
191	>	LinkedTransferQueueTest.suite(),
192	>	PhaserTest.suite(),
193	>	ThreadLocalRandomTest.suite(),
194	>	AbstractExecutorServiceTest.suite(),
195	>	AbstractQueueTest.suite(),
196	>	AbstractQueuedSynchronizerTest.suite(),
197	>	AbstractQueuedLongSynchronizerTest.suite(),
198	>	ArrayBlockingQueueTest.suite(),
199	>	ArrayDequeTest.suite(),
200	>	AtomicBooleanTest.suite(),
201	>	AtomicIntegerArrayTest.suite(),
202	>	AtomicIntegerFieldUpdaterTest.suite(),
203	>	AtomicIntegerTest.suite(),
204	>	AtomicLongArrayTest.suite(),
205	>	AtomicLongFieldUpdaterTest.suite(),
206	>	AtomicLongTest.suite(),
207	>	AtomicMarkableReferenceTest.suite(),
208	>	AtomicReferenceArrayTest.suite(),
209	>	AtomicReferenceFieldUpdaterTest.suite(),
210	>	AtomicReferenceTest.suite(),
211	>	AtomicStampedReferenceTest.suite(),
212	>	ConcurrentHashMapTest.suite(),
213	>	ConcurrentLinkedDequeTest.suite(),
214	>	ConcurrentLinkedQueueTest.suite(),
215	>	ConcurrentSkipListMapTest.suite(),
216	>	ConcurrentSkipListSubMapTest.suite(),
217	>	ConcurrentSkipListSetTest.suite(),
218	>	ConcurrentSkipListSubSetTest.suite(),
219	>	CopyOnWriteArrayListTest.suite(),
220	>	CopyOnWriteArraySetTest.suite(),
221	>	CountDownLatchTest.suite(),
222	>	CyclicBarrierTest.suite(),
223	>	DelayQueueTest.suite(),
224	>	EntryTest.suite(),
225	>	ExchangerTest.suite(),
226	>	ExecutorsTest.suite(),
227	>	ExecutorCompletionServiceTest.suite(),
228	>	FutureTaskTest.suite(),
229	>	LinkedBlockingDequeTest.suite(),
230	>	LinkedBlockingQueueTest.suite(),
231	>	LinkedListTest.suite(),
232	>	LockSupportTest.suite(),
233	>	PriorityBlockingQueueTest.suite(),
234	>	PriorityQueueTest.suite(),
235	>	ReentrantLockTest.suite(),
236	>	ReentrantReadWriteLockTest.suite(),
237	>	ScheduledExecutorTest.suite(),
238	>	ScheduledExecutorSubclassTest.suite(),
239	>	SemaphoreTest.suite(),
240	>	SynchronousQueueTest.suite(),
241	>	SystemTest.suite(),
242	>	ThreadLocalTest.suite(),
243	>	ThreadPoolExecutorTest.suite(),
244	>	ThreadPoolExecutorSubclassTest.suite(),
245	>	ThreadTest.suite(),
246	>	TimeUnitTest.suite(),
247	>	TreeMapTest.suite(),
248	>	TreeSetTest.suite(),
249	>	TreeSubMapTest.suite(),
250	>	TreeSubSetTest.suite());
251		}
252
253
#	Line 191 | Line 265 | public class JSR166TestCase extends Test
265		return 50;
266		}
267
194	–
268		/**
269		* Sets delays as multiples of SHORT_DELAY.
270		*/
271	<	protected  void setDelays() {
271	>	protected void setDelays() {
272		SHORT_DELAY_MS = getShortDelay();
273	<	SMALL_DELAY_MS = SHORT_DELAY_MS * 5;
273	>	SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
274		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
275	<	LONG_DELAY_MS = SHORT_DELAY_MS * 50;
275	>	LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
276	>	}
277	>
278	>	/**
279	>	* Returns a timeout in milliseconds to be used in tests that
280	>	* verify that operations block or time out.
281	>	*/
282	>	long timeoutMillis() {
283	>	return SHORT_DELAY_MS / 4;
284		}
285
286		/**
287	<	* Flag set true if any threadAssert methods fail
287	>	* Returns a new Date instance representing a time delayMillis
288	>	* milliseconds in the future.
289		*/
290	<	volatile boolean threadFailed;
290	>	Date delayedDate(long delayMillis) {
291	>	return new Date(System.currentTimeMillis() + delayMillis);
292	>	}
293
294		/**
295	<	* Initializes test to indicate that no thread assertions have failed
295	>	* The first exception encountered if any threadAssertXXX method fails.
296		*/
297	+	private final AtomicReference<Throwable> threadFailure
298	+	= new AtomicReference<Throwable>(null);
299	+
300	+	/**
301	+	* Records an exception so that it can be rethrown later in the test
302	+	* harness thread, triggering a test case failure.  Only the first
303	+	* failure is recorded; subsequent calls to this method from within
304	+	* the same test have no effect.
305	+	*/
306	+	public void threadRecordFailure(Throwable t) {
307	+	threadFailure.compareAndSet(null, t);
308	+	}
309	+
310		public void setUp() {
311		setDelays();
215	–	threadFailed = false;
312		}
313
314		/**
315	<	* Triggers test case failure if any thread assertions have failed
316	<	*/
317	<	public void tearDown() {
318	<	assertFalse(threadFailed);
315	>	* Extra checks that get done for all test cases.
316	>	*
317	>	* Triggers test case failure if any thread assertions have failed,
318	>	* by rethrowing, in the test harness thread, any exception recorded
319	>	* earlier by threadRecordFailure.
320	>	*
321	>	* Triggers test case failure if interrupt status is set in the main thread.
322	>	*/
323	>	public void tearDown() throws Exception {
324	>	Throwable t = threadFailure.getAndSet(null);
325	>	if (t != null) {
326	>	if (t instanceof Error)
327	>	throw (Error) t;
328	>	else if (t instanceof RuntimeException)
329	>	throw (RuntimeException) t;
330	>	else if (t instanceof Exception)
331	>	throw (Exception) t;
332	>	else {
333	>	AssertionFailedError afe =
334	>	new AssertionFailedError(t.toString());
335	>	afe.initCause(t);
336	>	throw afe;
337	>	}
338	>	}
339	>
340	>	if (Thread.interrupted())
341	>	throw new AssertionFailedError("interrupt status set in main thread");
342		}
343
344		/**
345	<	* Fail, also setting status to indicate current testcase should fail
345	>	* Just like fail(reason), but additionally recording (using
346	>	* threadRecordFailure) any AssertionFailedError thrown, so that
347	>	* the current testcase will fail.
348		*/
349		public void threadFail(String reason) {
350	<	threadFailed = true;
351	<	fail(reason);
350	>	try {
351	>	fail(reason);
352	>	} catch (AssertionFailedError t) {
353	>	threadRecordFailure(t);
354	>	fail(reason);
355	>	}
356		}
357
358		/**
359	<	* If expression not true, set status to indicate current testcase
360	<	* should fail
359	>	* Just like assertTrue(b), but additionally recording (using
360	>	* threadRecordFailure) any AssertionFailedError thrown, so that
361	>	* the current testcase will fail.
362		*/
363		public void threadAssertTrue(boolean b) {
364	<	if (!b) {
239	<	threadFailed = true;
364	>	try {
365		assertTrue(b);
366	+	} catch (AssertionFailedError t) {
367	+	threadRecordFailure(t);
368	+	throw t;
369		}
370		}
371
372		/**
373	<	* If expression not false, set status to indicate current testcase
374	<	* should fail
373	>	* Just like assertFalse(b), but additionally recording (using
374	>	* threadRecordFailure) any AssertionFailedError thrown, so that
375	>	* the current testcase will fail.
376		*/
377		public void threadAssertFalse(boolean b) {
378	<	if (b) {
250	<	threadFailed = true;
378	>	try {
379		assertFalse(b);
380	+	} catch (AssertionFailedError t) {
381	+	threadRecordFailure(t);
382	+	throw t;
383		}
384		}
385
386		/**
387	<	* If argument not null, set status to indicate current testcase
388	<	* should fail
387	>	* Just like assertNull(x), but additionally recording (using
388	>	* threadRecordFailure) any AssertionFailedError thrown, so that
389	>	* the current testcase will fail.
390		*/
391		public void threadAssertNull(Object x) {
392	<	if (x != null) {
261	<	threadFailed = true;
392	>	try {
393		assertNull(x);
394	+	} catch (AssertionFailedError t) {
395	+	threadRecordFailure(t);
396	+	throw t;
397		}
398		}
399
400		/**
401	<	* If arguments not equal, set status to indicate current testcase
402	<	* should fail
401	>	* Just like assertEquals(x, y), but additionally recording (using
402	>	* threadRecordFailure) any AssertionFailedError thrown, so that
403	>	* the current testcase will fail.
404		*/
405		public void threadAssertEquals(long x, long y) {
406	<	if (x != y) {
272	<	threadFailed = true;
406	>	try {
407		assertEquals(x, y);
408	+	} catch (AssertionFailedError t) {
409	+	threadRecordFailure(t);
410	+	throw t;
411		}
412		}
413
414		/**
415	<	* If arguments not equal, set status to indicate current testcase
416	<	* should fail
415	>	* Just like assertEquals(x, y), but additionally recording (using
416	>	* threadRecordFailure) any AssertionFailedError thrown, so that
417	>	* the current testcase will fail.
418		*/
419		public void threadAssertEquals(Object x, Object y) {
420	<	if (x != y && (x == null || !x.equals(y))) {
283	<	threadFailed = true;
420	>	try {
421		assertEquals(x, y);
422	+	} catch (AssertionFailedError t) {
423	+	threadRecordFailure(t);
424	+	throw t;
425	+	} catch (Throwable t) {
426	+	threadUnexpectedException(t);
427		}
428		}
429
430		/**
431	<	* threadFail with message "should throw exception"
431	>	* Just like assertSame(x, y), but additionally recording (using
432	>	* threadRecordFailure) any AssertionFailedError thrown, so that
433	>	* the current testcase will fail.
434	>	*/
435	>	public void threadAssertSame(Object x, Object y) {
436	>	try {
437	>	assertSame(x, y);
438	>	} catch (AssertionFailedError t) {
439	>	threadRecordFailure(t);
440	>	throw t;
441	>	}
442	>	}
443	>
444	>	/**
445	>	* Calls threadFail with message "should throw exception".
446		*/
447		public void threadShouldThrow() {
448	<	threadFailed = true;
293	<	fail("should throw exception");
448	>	threadFail("should throw exception");
449		}
450
451		/**
452	<	* threadFail with message "should throw" + exceptionName
452	>	* Calls threadFail with message "should throw" + exceptionName.
453		*/
454		public void threadShouldThrow(String exceptionName) {
455	<	threadFailed = true;
301	<	fail("should throw " + exceptionName);
455	>	threadFail("should throw " + exceptionName);
456		}
457
458		/**
459	<	* threadFail with message "Unexpected exception"
459	>	* Records the given exception using {@link #threadRecordFailure},
460	>	* then rethrows the exception, wrapping it in an
461	>	* AssertionFailedError if necessary.
462		*/
463	<	public void threadUnexpectedException() {
464	<	threadFailed = true;
465	<	fail("Unexpected exception");
463	>	public void threadUnexpectedException(Throwable t) {
464	>	threadRecordFailure(t);
465	>	t.printStackTrace();
466	>	if (t instanceof RuntimeException)
467	>	throw (RuntimeException) t;
468	>	else if (t instanceof Error)
469	>	throw (Error) t;
470	>	else {
471	>	AssertionFailedError afe =
472	>	new AssertionFailedError("unexpected exception: " + t);
473	>	afe.initCause(t);
474	>	throw afe;
475	>	}
476		}
477
478		/**
479	<	* threadFail with message "Unexpected exception", with argument
479	>	* Delays, via Thread.sleep, for the given millisecond delay, but
480	>	* if the sleep is shorter than specified, may re-sleep or yield
481	>	* until time elapses.
482		*/
483	<	public void threadUnexpectedException(Throwable ex) {
484	<	threadFailed = true;
485	<	ex.printStackTrace();
486	<	fail("Unexpected exception: " + ex);
483	>	static void delay(long millis) throws InterruptedException {
484	>	long startTime = System.nanoTime();
485	>	long ns = millis * 1000 * 1000;
486	>	for (;;) {
487	>	if (millis > 0L)
488	>	Thread.sleep(millis);
489	>	else // too short to sleep
490	>	Thread.yield();
491	>	long d = ns - (System.nanoTime() - startTime);
492	>	if (d > 0L)
493	>	millis = d / (1000 * 1000);
494	>	else
495	>	break;
496	>	}
497		}
498
499		/**
500	<	* Wait out termination of a thread pool or fail doing so
500	>	* Waits out termination of a thread pool or fails doing so.
501		*/
502	<	public void joinPool(ExecutorService exec) {
502	>	void joinPool(ExecutorService exec) {
503		try {
504		exec.shutdown();
505	<	assertTrue(exec.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
505	>	assertTrue("ExecutorService did not terminate in a timely manner",
506	>	exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS));
507		} catch (SecurityException ok) {
508		// Allowed in case test doesn't have privs
509		} catch (InterruptedException ie) {
510	<	fail("Unexpected exception");
510	>	fail("Unexpected InterruptedException");
511	>	}
512	>	}
513	>
514	>	/**
515	>	* A debugging tool to print all stack traces, as jstack does.
516	>	*/
517	>	void printAllStackTraces() {
518	>	System.err.println(
519	>	Arrays.toString(
520	>	java.lang.management.ManagementFactory.getThreadMXBean()
521	>	.dumpAllThreads(true, true)));
522	>	}
523	>
524	>	/**
525	>	* Checks that thread does not terminate within the default
526	>	* millisecond delay of {@code timeoutMillis()}.
527	>	*/
528	>	void assertThreadStaysAlive(Thread thread) {
529	>	assertThreadStaysAlive(thread, timeoutMillis());
530	>	}
531	>
532	>	/**
533	>	* Checks that thread does not terminate within the given millisecond delay.
534	>	*/
535	>	void assertThreadStaysAlive(Thread thread, long millis) {
536	>	try {
537	>	// No need to optimize the failing case via Thread.join.
538	>	delay(millis);
539	>	assertTrue(thread.isAlive());
540	>	} catch (InterruptedException ie) {
541	>	fail("Unexpected InterruptedException");
542		}
543		}
544
545	+	/**
546	+	* Checks that the threads do not terminate within the default
547	+	* millisecond delay of {@code timeoutMillis()}.
548	+	*/
549	+	void assertThreadsStayAlive(Thread... threads) {
550	+	assertThreadsStayAlive(timeoutMillis(), threads);
551	+	}
552
553		/**
554	<	* fail with message "should throw exception"
554	>	* Checks that the threads do not terminate within the given millisecond delay.
555		*/
556	<	public void shouldThrow() {
557	<	fail("Should throw exception");
556	>	void assertThreadsStayAlive(long millis, Thread... threads) {
557	>	try {
558	>	// No need to optimize the failing case via Thread.join.
559	>	delay(millis);
560	>	for (Thread thread : threads)
561	>	assertTrue(thread.isAlive());
562	>	} catch (InterruptedException ie) {
563	>	fail("Unexpected InterruptedException");
564	>	}
565		}
566
567		/**
568	<	* fail with message "should throw " + exceptionName
568	>	* Checks that future.get times out, with the default timeout of
569	>	* {@code timeoutMillis()}.
570		*/
571	<	public void shouldThrow(String exceptionName) {
572	<	fail("Should throw " + exceptionName);
571	>	void assertFutureTimesOut(Future future) {
572	>	assertFutureTimesOut(future, timeoutMillis());
573		}
574
575		/**
576	<	* fail with message "Unexpected exception"
576	>	* Checks that future.get times out, with the given millisecond timeout.
577		*/
578	<	public void unexpectedException() {
579	<	fail("Unexpected exception");
578	>	void assertFutureTimesOut(Future future, long timeoutMillis) {
579	>	long startTime = System.nanoTime();
580	>	try {
581	>	future.get(timeoutMillis, MILLISECONDS);
582	>	shouldThrow();
583	>	} catch (TimeoutException success) {
584	>	} catch (Exception e) {
585	>	threadUnexpectedException(e);
586	>	} finally { future.cancel(true); }
587	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
588		}
589
590		/**
591	<	* fail with message "Unexpected exception", with argument
591	>	* Fails with message "should throw exception".
592		*/
593	<	public void unexpectedException(Throwable ex) {
594	<	ex.printStackTrace();
362	<	fail("Unexpected exception: " + ex);
593	>	public void shouldThrow() {
594	>	fail("Should throw exception");
595		}
596
597	+	/**
598	+	* Fails with message "should throw " + exceptionName.
599	+	*/
600	+	public void shouldThrow(String exceptionName) {
601	+	fail("Should throw " + exceptionName);
602	+	}
603
604		/**
605		* The number of elements to place in collections, arrays, etc.
606		*/
607	<	static final int SIZE = 20;
607	>	public static final int SIZE = 20;
608
609		// Some convenient Integer constants
610
611	<	static final Integer zero = new Integer(0);
612	<	static final Integer one = new Integer(1);
613	<	static final Integer two = new Integer(2);
614	<	static final Integer three  = new Integer(3);
615	<	static final Integer four  = new Integer(4);
616	<	static final Integer five  = new Integer(5);
617	<	static final Integer six = new Integer(6);
618	<	static final Integer seven = new Integer(7);
619	<	static final Integer eight = new Integer(8);
620	<	static final Integer nine = new Integer(9);
621	<	static final Integer m1  = new Integer(-1);
622	<	static final Integer m2  = new Integer(-2);
623	<	static final Integer m3  = new Integer(-3);
624	<	static final Integer m4 = new Integer(-4);
625	<	static final Integer m5 = new Integer(-5);
626	<	static final Integer m6 = new Integer(-6);
627	<	static final Integer m10 = new Integer(-10);
611	>	public static final Integer zero  = new Integer(0);
612	>	public static final Integer one   = new Integer(1);
613	>	public static final Integer two   = new Integer(2);
614	>	public static final Integer three = new Integer(3);
615	>	public static final Integer four  = new Integer(4);
616	>	public static final Integer five  = new Integer(5);
617	>	public static final Integer six   = new Integer(6);
618	>	public static final Integer seven = new Integer(7);
619	>	public static final Integer eight = new Integer(8);
620	>	public static final Integer nine  = new Integer(9);
621	>	public static final Integer m1  = new Integer(-1);
622	>	public static final Integer m2  = new Integer(-2);
623	>	public static final Integer m3  = new Integer(-3);
624	>	public static final Integer m4  = new Integer(-4);
625	>	public static final Integer m5  = new Integer(-5);
626	>	public static final Integer m6  = new Integer(-6);
627	>	public static final Integer m10 = new Integer(-10);
628	>
629
630	+	/**
631	+	* Runs Runnable r with a security policy that permits precisely
632	+	* the specified permissions.  If there is no current security
633	+	* manager, the runnable is run twice, both with and without a
634	+	* security manager.  We require that any security manager permit
635	+	* getPolicy/setPolicy.
636	+	*/
637	+	public void runWithPermissions(Runnable r, Permission... permissions) {
638	+	SecurityManager sm = System.getSecurityManager();
639	+	if (sm == null) {
640	+	r.run();
641	+	}
642	+	runWithSecurityManagerWithPermissions(r, permissions);
643	+	}
644	+
645	+	/**
646	+	* Runs Runnable r with a security policy that permits precisely
647	+	* the specified permissions.  If there is no current security
648	+	* manager, a temporary one is set for the duration of the
649	+	* Runnable.  We require that any security manager permit
650	+	* getPolicy/setPolicy.
651	+	*/
652	+	public void runWithSecurityManagerWithPermissions(Runnable r,
653	+	Permission... permissions) {
654	+	SecurityManager sm = System.getSecurityManager();
655	+	if (sm == null) {
656	+	Policy savedPolicy = Policy.getPolicy();
657	+	try {
658	+	Policy.setPolicy(permissivePolicy());
659	+	System.setSecurityManager(new SecurityManager());
660	+	runWithSecurityManagerWithPermissions(r, permissions);
661	+	} finally {
662	+	System.setSecurityManager(null);
663	+	Policy.setPolicy(savedPolicy);
664	+	}
665	+	} else {
666	+	Policy savedPolicy = Policy.getPolicy();
667	+	AdjustablePolicy policy = new AdjustablePolicy(permissions);
668	+	Policy.setPolicy(policy);
669	+
670	+	try {
671	+	r.run();
672	+	} finally {
673	+	policy.addPermission(new SecurityPermission("setPolicy"));
674	+	Policy.setPolicy(savedPolicy);
675	+	}
676	+	}
677	+	}
678	+
679	+	/**
680	+	* Runs a runnable without any permissions.
681	+	*/
682	+	public void runWithoutPermissions(Runnable r) {
683	+	runWithPermissions(r);
684	+	}
685
686		/**
687		* A security policy where new permissions can be dynamically added
688		* or all cleared.
689		*/
690	<	static class AdjustablePolicy extends java.security.Policy {
690	>	public static class AdjustablePolicy extends java.security.Policy {
691		Permissions perms = new Permissions();
692	<	AdjustablePolicy() { }
692	>	AdjustablePolicy(Permission... permissions) {
693	>	for (Permission permission : permissions)
694	>	perms.add(permission);
695	>	}
696		void addPermission(Permission perm) { perms.add(perm); }
697		void clearPermissions() { perms = new Permissions(); }
698		public PermissionCollection getPermissions(CodeSource cs) {
#	Line 408 | Line 705 | public class JSR166TestCase extends Test
705		return perms.implies(p);
706		}
707		public void refresh() {}
708	+	public String toString() {
709	+	List<Permission> ps = new ArrayList<Permission>();
710	+	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
711	+	ps.add(e.nextElement());
712	+	return "AdjustablePolicy with permissions " + ps;
713	+	}
714	+	}
715	+
716	+	/**
717	+	* Returns a policy containing all the permissions we ever need.
718	+	*/
719	+	public static Policy permissivePolicy() {
720	+	return new AdjustablePolicy
721	+	// Permissions j.u.c. needs directly
722	+	(new RuntimePermission("modifyThread"),
723	+	new RuntimePermission("getClassLoader"),
724	+	new RuntimePermission("setContextClassLoader"),
725	+	// Permissions needed to change permissions!
726	+	new SecurityPermission("getPolicy"),
727	+	new SecurityPermission("setPolicy"),
728	+	new RuntimePermission("setSecurityManager"),
729	+	// Permissions needed by the junit test harness
730	+	new RuntimePermission("accessDeclaredMembers"),
731	+	new PropertyPermission("*", "read"),
732	+	new java.io.FilePermission("<<ALL FILES>>", "read"));
733		}
734
735		/**
736	<	* Sleep until the timeout has elapsed, or interrupted.
737	<	* Does <em>NOT</em> throw InterruptedException.
736	>	* Sleeps until the given time has elapsed.
737	>	* Throws AssertionFailedError if interrupted.
738		*/
739	<	void sleepTillInterrupted(long timeoutMillis) {
739	>	void sleep(long millis) {
740		try {
741	<	Thread.sleep(timeoutMillis);
742	<	} catch (InterruptedException wakeup) {
741	>	delay(millis);
742	>	} catch (InterruptedException ie) {
743	>	AssertionFailedError afe =
744	>	new AssertionFailedError("Unexpected InterruptedException");
745	>	afe.initCause(ie);
746	>	throw afe;
747		}
748		}
749
750		/**
751	<	* Returns a new started Thread running the given runnable.
751	>	* Spin-waits up to the specified number of milliseconds for the given
752	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
753	>	*/
754	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
755	>	long startTime = System.nanoTime();
756	>	for (;;) {
757	>	Thread.State s = thread.getState();
758	>	if (s == Thread.State.BLOCKED ||
759	>	s == Thread.State.WAITING ||
760	>	s == Thread.State.TIMED_WAITING)
761	>	return;
762	>	else if (s == Thread.State.TERMINATED)
763	>	fail("Unexpected thread termination");
764	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
765	>	threadAssertTrue(thread.isAlive());
766	>	return;
767	>	}
768	>	Thread.yield();
769	>	}
770	>	}
771	>
772	>	/**
773	>	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
774	>	* state: BLOCKED, WAITING, or TIMED_WAITING.
775	>	*/
776	>	void waitForThreadToEnterWaitState(Thread thread) {
777	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
778	>	}
779	>
780	>	/**
781	>	* Returns the number of milliseconds since time given by
782	>	* startNanoTime, which must have been previously returned from a
783	>	* call to {@link System.nanoTime()}.
784	>	*/
785	>	long millisElapsedSince(long startNanoTime) {
786	>	return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
787	>	}
788	>
789	>	/**
790	>	* Returns a new started daemon Thread running the given runnable.
791		*/
792		Thread newStartedThread(Runnable runnable) {
793		Thread t = new Thread(runnable);
794	+	t.setDaemon(true);
795		t.start();
796		return t;
797		}
798
799	+	/**
800	+	* Waits for the specified time (in milliseconds) for the thread
801	+	* to terminate (using {@link Thread#join(long)}), else interrupts
802	+	* the thread (in the hope that it may terminate later) and fails.
803	+	*/
804	+	void awaitTermination(Thread t, long timeoutMillis) {
805	+	try {
806	+	t.join(timeoutMillis);
807	+	} catch (InterruptedException ie) {
808	+	threadUnexpectedException(ie);
809	+	} finally {
810	+	if (t.getState() != Thread.State.TERMINATED) {
811	+	t.interrupt();
812	+	fail("Test timed out");
813	+	}
814	+	}
815	+	}
816	+
817	+	/**
818	+	* Waits for LONG_DELAY_MS milliseconds for the thread to
819	+	* terminate (using {@link Thread#join(long)}), else interrupts
820	+	* the thread (in the hope that it may terminate later) and fails.
821	+	*/
822	+	void awaitTermination(Thread t) {
823	+	awaitTermination(t, LONG_DELAY_MS);
824	+	}
825	+
826		// Some convenient Runnable classes
827
828	<	abstract class CheckedRunnable implements Runnable {
829	<	abstract void realRun() throws Throwable;
828	>	public abstract class CheckedRunnable implements Runnable {
829	>	protected abstract void realRun() throws Throwable;
830
831		public final void run() {
832		try {
#	Line 444 | Line 837 | public class JSR166TestCase extends Test
837		}
838		}
839
840	<	abstract class RunnableShouldThrow implements Runnable {
841	<	abstract void realRun() throws Throwable;
840	>	public abstract class RunnableShouldThrow implements Runnable {
841	>	protected abstract void realRun() throws Throwable;
842
843		final Class<?> exceptionClass;
844
#	Line 457 | Line 850 | public class JSR166TestCase extends Test
850		try {
851		realRun();
852		threadShouldThrow(exceptionClass.getSimpleName());
460	–	} catch (InterruptedException success) {
853		} catch (Throwable t) {
854		if (! exceptionClass.isInstance(t))
855		threadUnexpectedException(t);
#	Line 465 | Line 857 | public class JSR166TestCase extends Test
857		}
858		}
859
860	<	abstract class ThreadShouldThrow extends Thread {
861	<	abstract void realRun() throws Throwable;
860	>	public abstract class ThreadShouldThrow extends Thread {
861	>	protected abstract void realRun() throws Throwable;
862
863		final Class<?> exceptionClass;
864
#	Line 478 | Line 870 | public class JSR166TestCase extends Test
870		try {
871		realRun();
872		threadShouldThrow(exceptionClass.getSimpleName());
481	–	} catch (InterruptedException success) {
873		} catch (Throwable t) {
874		if (! exceptionClass.isInstance(t))
875		threadUnexpectedException(t);
#	Line 486 | Line 877 | public class JSR166TestCase extends Test
877		}
878		}
879
880	<	abstract class CheckedInterruptedRunnable implements Runnable {
881	<	abstract void realRun() throws Throwable;
880	>	public abstract class CheckedInterruptedRunnable implements Runnable {
881	>	protected abstract void realRun() throws Throwable;
882
883		public final void run() {
884		try {
885		realRun();
886		threadShouldThrow("InterruptedException");
887		} catch (InterruptedException success) {
888	+	threadAssertFalse(Thread.interrupted());
889		} catch (Throwable t) {
890		threadUnexpectedException(t);
891		}
892		}
893		}
894
895	<	abstract class CheckedCallable<T> implements Callable<T> {
896	<	abstract T realCall() throws Throwable;
895	>	public abstract class CheckedCallable<T> implements Callable<T> {
896	>	protected abstract T realCall() throws Throwable;
897
898		public final T call() {
899		try {
900		return realCall();
901		} catch (Throwable t) {
902		threadUnexpectedException(t);
903	+	return null;
904		}
512	–	return null;
905		}
906		}
907
908	<	abstract class CheckedInterruptedCallable<T> implements Callable<T> {
909	<	abstract T realCall() throws Throwable;
908	>	public abstract class CheckedInterruptedCallable<T>
909	>	implements Callable<T> {
910	>	protected abstract T realCall() throws Throwable;
911
912		public final T call() {
913		try {
#	Line 522 | Line 915 | public class JSR166TestCase extends Test
915		threadShouldThrow("InterruptedException");
916		return result;
917		} catch (InterruptedException success) {
918	+	threadAssertFalse(Thread.interrupted());
919		} catch (Throwable t) {
920		threadUnexpectedException(t);
921		}
#	Line 529 | Line 923 | public class JSR166TestCase extends Test
923		}
924		}
925
926	<	static class NoOpRunnable implements Runnable {
926	>	public static class NoOpRunnable implements Runnable {
927		public void run() {}
928		}
929
930	<	static class NoOpCallable implements Callable {
930	>	public static class NoOpCallable implements Callable {
931		public Object call() { return Boolean.TRUE; }
932		}
933
934	<	static final String TEST_STRING = "a test string";
934	>	public static final String TEST_STRING = "a test string";
935
936	<	static class StringTask implements Callable<String> {
936	>	public static class StringTask implements Callable<String> {
937		public String call() { return TEST_STRING; }
938		}
939
940	<	static class NPETask implements Callable<String> {
940	>	public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
941	>	return new CheckedCallable<String>() {
942	>	protected String realCall() {
943	>	try {
944	>	latch.await();
945	>	} catch (InterruptedException quittingTime) {}
946	>	return TEST_STRING;
947	>	}};
948	>	}
949	>
950	>	public Runnable awaiter(final CountDownLatch latch) {
951	>	return new CheckedRunnable() {
952	>	public void realRun() throws InterruptedException {
953	>	await(latch);
954	>	}};
955	>	}
956	>
957	>	public void await(CountDownLatch latch) {
958	>	try {
959	>	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
960	>	} catch (Throwable t) {
961	>	threadUnexpectedException(t);
962	>	}
963	>	}
964	>
965	>	public void await(Semaphore semaphore) {
966	>	try {
967	>	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
968	>	} catch (Throwable t) {
969	>	threadUnexpectedException(t);
970	>	}
971	>	}
972	>
973	>	//     /**
974	>	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
975	>	//      */
976	>	//     public void await(AtomicBoolean flag) {
977	>	//         await(flag, LONG_DELAY_MS);
978	>	//     }
979	>
980	>	//     /**
981	>	//      * Spin-waits up to the specified timeout until flag becomes true.
982	>	//      */
983	>	//     public void await(AtomicBoolean flag, long timeoutMillis) {
984	>	//         long startTime = System.nanoTime();
985	>	//         while (!flag.get()) {
986	>	//             if (millisElapsedSince(startTime) > timeoutMillis)
987	>	//                 throw new AssertionFailedError("timed out");
988	>	//             Thread.yield();
989	>	//         }
990	>	//     }
991	>
992	>	public static class NPETask implements Callable<String> {
993		public String call() { throw new NullPointerException(); }
994		}
995
996	<	static class CallableOne implements Callable<Integer> {
996	>	public static class CallableOne implements Callable<Integer> {
997		public Integer call() { return one; }
998		}
999
1000	<	class ShortRunnable extends CheckedRunnable {
1001	<	void realRun() throws Throwable {
1002	<	Thread.sleep(SHORT_DELAY_MS);
1000	>	public class ShortRunnable extends CheckedRunnable {
1001	>	protected void realRun() throws Throwable {
1002	>	delay(SHORT_DELAY_MS);
1003		}
1004		}
1005
1006	<	class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1007	<	void realRun() throws InterruptedException {
1008	<	Thread.sleep(SHORT_DELAY_MS);
1006	>	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1007	>	protected void realRun() throws InterruptedException {
1008	>	delay(SHORT_DELAY_MS);
1009		}
1010		}
1011
1012	<	class SmallRunnable extends CheckedRunnable {
1013	<	void realRun() throws Throwable {
1014	<	Thread.sleep(SMALL_DELAY_MS);
1012	>	public class SmallRunnable extends CheckedRunnable {
1013	>	protected void realRun() throws Throwable {
1014	>	delay(SMALL_DELAY_MS);
1015		}
1016		}
1017
1018	<	class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1019	<	void realRun() {
1018	>	public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1019	>	protected void realRun() {
1020		try {
1021	<	Thread.sleep(SMALL_DELAY_MS);
1022	<	}
577	<	catch (InterruptedException ok) {
578	<	}
1021	>	delay(SMALL_DELAY_MS);
1022	>	} catch (InterruptedException ok) {}
1023		}
1024		}
1025
1026	<	class SmallCallable extends CheckedCallable {
1027	<	Object realCall() throws Throwable {
1028	<	Thread.sleep(SMALL_DELAY_MS);
1026	>	public class SmallCallable extends CheckedCallable {
1027	>	protected Object realCall() throws InterruptedException {
1028	>	delay(SMALL_DELAY_MS);
1029		return Boolean.TRUE;
1030		}
1031		}
1032
1033	<	class SmallInterruptedRunnable extends CheckedInterruptedRunnable {
1034	<	void realRun() throws InterruptedException {
1035	<	Thread.sleep(SMALL_DELAY_MS);
1033	>	public class MediumRunnable extends CheckedRunnable {
1034	>	protected void realRun() throws Throwable {
1035	>	delay(MEDIUM_DELAY_MS);
1036		}
1037		}
1038
1039	<	class MediumRunnable extends CheckedRunnable {
1040	<	void realRun() throws Throwable {
1041	<	Thread.sleep(MEDIUM_DELAY_MS);
1039	>	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1040	>	protected void realRun() throws InterruptedException {
1041	>	delay(MEDIUM_DELAY_MS);
1042		}
1043		}
1044
1045	<	class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1046	<	void realRun() throws InterruptedException {
1047	<	Thread.sleep(MEDIUM_DELAY_MS);
1048	<	}
1045	>	public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1046	>	return new CheckedRunnable() {
1047	>	protected void realRun() {
1048	>	try {
1049	>	delay(timeoutMillis);
1050	>	} catch (InterruptedException ok) {}
1051	>	}};
1052		}
1053
1054	<	class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1055	<	void realRun() {
1054	>	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1055	>	protected void realRun() {
1056		try {
1057	<	Thread.sleep(MEDIUM_DELAY_MS);
1058	<	}
612	<	catch (InterruptedException ok) {
613	<	}
1057	>	delay(MEDIUM_DELAY_MS);
1058	>	} catch (InterruptedException ok) {}
1059		}
1060		}
1061
1062	<	class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1063	<	void realRun() {
1062	>	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1063	>	protected void realRun() {
1064		try {
1065	<	Thread.sleep(LONG_DELAY_MS);
1066	<	}
622	<	catch (InterruptedException ok) {
623	<	}
1065	>	delay(LONG_DELAY_MS);
1066	>	} catch (InterruptedException ok) {}
1067		}
1068		}
1069
1070		/**
1071		* For use as ThreadFactory in constructors
1072		*/
1073	<	static class SimpleThreadFactory implements ThreadFactory {
1073	>	public static class SimpleThreadFactory implements ThreadFactory {
1074		public Thread newThread(Runnable r) {
1075		return new Thread(r);
1076		}
1077		}
1078
1079	<	static class TrackedShortRunnable implements Runnable {
1080	<	volatile boolean done = false;
1079	>	public interface TrackedRunnable extends Runnable {
1080	>	boolean isDone();
1081	>	}
1082	>
1083	>	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1084	>	return new TrackedRunnable() {
1085	>	private volatile boolean done = false;
1086	>	public boolean isDone() { return done; }
1087	>	public void run() {
1088	>	try {
1089	>	delay(timeoutMillis);
1090	>	done = true;
1091	>	} catch (InterruptedException ok) {}
1092	>	}
1093	>	};
1094	>	}
1095	>
1096	>	public static class TrackedShortRunnable implements Runnable {
1097	>	public volatile boolean done = false;
1098		public void run() {
1099		try {
1100	<	Thread.sleep(SMALL_DELAY_MS);
1100	>	delay(SHORT_DELAY_MS);
1101		done = true;
1102	<	} catch (InterruptedException ok) {
643	<	}
1102	>	} catch (InterruptedException ok) {}
1103		}
1104		}
1105
1106	<	static class TrackedMediumRunnable implements Runnable {
1107	<	volatile boolean done = false;
1106	>	public static class TrackedSmallRunnable implements Runnable {
1107	>	public volatile boolean done = false;
1108		public void run() {
1109		try {
1110	<	Thread.sleep(MEDIUM_DELAY_MS);
1110	>	delay(SMALL_DELAY_MS);
1111		done = true;
1112	<	} catch (InterruptedException ok) {
654	<	}
1112	>	} catch (InterruptedException ok) {}
1113		}
1114		}
1115
1116	<	static class TrackedLongRunnable implements Runnable {
1117	<	volatile boolean done = false;
1116	>	public static class TrackedMediumRunnable implements Runnable {
1117	>	public volatile boolean done = false;
1118		public void run() {
1119		try {
1120	<	Thread.sleep(LONG_DELAY_MS);
1120	>	delay(MEDIUM_DELAY_MS);
1121		done = true;
1122	<	} catch (InterruptedException ok) {
665	<	}
1122	>	} catch (InterruptedException ok) {}
1123		}
1124		}
1125
1126	<	static class TrackedNoOpRunnable implements Runnable {
1127	<	volatile boolean done = false;
1126	>	public static class TrackedLongRunnable implements Runnable {
1127	>	public volatile boolean done = false;
1128	>	public void run() {
1129	>	try {
1130	>	delay(LONG_DELAY_MS);
1131	>	done = true;
1132	>	} catch (InterruptedException ok) {}
1133	>	}
1134	>	}
1135	>
1136	>	public static class TrackedNoOpRunnable implements Runnable {
1137	>	public volatile boolean done = false;
1138		public void run() {
1139		done = true;
1140		}
1141		}
1142
1143	<	static class TrackedCallable implements Callable {
1144	<	volatile boolean done = false;
1143	>	public static class TrackedCallable implements Callable {
1144	>	public volatile boolean done = false;
1145		public Object call() {
1146		try {
1147	<	Thread.sleep(SMALL_DELAY_MS);
1147	>	delay(SMALL_DELAY_MS);
1148		done = true;
1149	<	} catch (InterruptedException ok) {
683	<	}
1149	>	} catch (InterruptedException ok) {}
1150		return Boolean.TRUE;
1151		}
1152		}
1153
1154	+	/**
1155	+	* Analog of CheckedRunnable for RecursiveAction
1156	+	*/
1157	+	public abstract class CheckedRecursiveAction extends RecursiveAction {
1158	+	protected abstract void realCompute() throws Throwable;
1159	+
1160	+	public final void compute() {
1161	+	try {
1162	+	realCompute();
1163	+	} catch (Throwable t) {
1164	+	threadUnexpectedException(t);
1165	+	}
1166	+	}
1167	+	}
1168	+
1169	+	/**
1170	+	* Analog of CheckedCallable for RecursiveTask
1171	+	*/
1172	+	public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1173	+	protected abstract T realCompute() throws Throwable;
1174	+
1175	+	public final T compute() {
1176	+	try {
1177	+	return realCompute();
1178	+	} catch (Throwable t) {
1179	+	threadUnexpectedException(t);
1180	+	return null;
1181	+	}
1182	+	}
1183	+	}
1184
1185		/**
1186		* For use as RejectedExecutionHandler in constructors
1187		*/
1188	<	static class NoOpREHandler implements RejectedExecutionHandler {
1188	>	public static class NoOpREHandler implements RejectedExecutionHandler {
1189		public void rejectedExecution(Runnable r,
1190		ThreadPoolExecutor executor) {}
1191		}
1192
1193	+	/**
1194	+	* A CyclicBarrier that uses timed await and fails with
1195	+	* AssertionFailedErrors instead of throwing checked exceptions.
1196	+	*/
1197	+	public class CheckedBarrier extends CyclicBarrier {
1198	+	public CheckedBarrier(int parties) { super(parties); }
1199	+
1200	+	public int await() {
1201	+	try {
1202	+	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1203	+	} catch (TimeoutException e) {
1204	+	throw new AssertionFailedError("timed out");
1205	+	} catch (Exception e) {
1206	+	AssertionFailedError afe =
1207	+	new AssertionFailedError("Unexpected exception: " + e);
1208	+	afe.initCause(e);
1209	+	throw afe;
1210	+	}
1211	+	}
1212	+	}
1213	+
1214	+	void checkEmpty(BlockingQueue q) {
1215	+	try {
1216	+	assertTrue(q.isEmpty());
1217	+	assertEquals(0, q.size());
1218	+	assertNull(q.peek());
1219	+	assertNull(q.poll());
1220	+	assertNull(q.poll(0, MILLISECONDS));
1221	+	assertEquals(q.toString(), "[]");
1222	+	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1223	+	assertFalse(q.iterator().hasNext());
1224	+	try {
1225	+	q.element();
1226	+	shouldThrow();
1227	+	} catch (NoSuchElementException success) {}
1228	+	try {
1229	+	q.iterator().next();
1230	+	shouldThrow();
1231	+	} catch (NoSuchElementException success) {}
1232	+	try {
1233	+	q.remove();
1234	+	shouldThrow();
1235	+	} catch (NoSuchElementException success) {}
1236	+	} catch (InterruptedException ie) {
1237	+	threadUnexpectedException(ie);
1238	+	}
1239	+	}
1240	+
1241	+	void assertSerialEquals(Object x, Object y) {
1242	+	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1243	+	}
1244	+
1245	+	void assertNotSerialEquals(Object x, Object y) {
1246	+	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1247	+	}
1248	+
1249	+	byte[] serialBytes(Object o) {
1250	+	try {
1251	+	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1252	+	ObjectOutputStream oos = new ObjectOutputStream(bos);
1253	+	oos.writeObject(o);
1254	+	oos.flush();
1255	+	oos.close();
1256	+	return bos.toByteArray();
1257	+	} catch (Throwable t) {
1258	+	threadUnexpectedException(t);
1259	+	return new byte[0];
1260	+	}
1261	+	}
1262	+
1263	+	@SuppressWarnings("unchecked")
1264	+	<T> T serialClone(T o) {
1265	+	try {
1266	+	ObjectInputStream ois = new ObjectInputStream
1267	+	(new ByteArrayInputStream(serialBytes(o)));
1268	+	T clone = (T) ois.readObject();
1269	+	assertSame(o.getClass(), clone.getClass());
1270	+	return clone;
1271	+	} catch (Throwable t) {
1272	+	threadUnexpectedException(t);
1273	+	return null;
1274	+	}
1275	+	}
1276		}

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