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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.32 by dl, Fri Jul 31 23:02:49 2009 UTC vs.
Revision 1.94 by jsr166, Mon Jan 21 19:32:19 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.io.*;
23	<	import java.security.*;
22	>	import java.util.concurrent.atomic.AtomicBoolean;
23	>	import java.util.concurrent.atomic.AtomicReference;
24	>	import static java.util.concurrent.TimeUnit.MILLISECONDS;
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 25 | 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 47 | 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 80 | 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]);
152	>	public static void main(String[] args) {
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);
162	>	junit.textui.TestRunner.run(s);
163		System.gc();
164		System.runFinalization();
165		}
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));
174	<
175	<	return suite;
185	>	public static Test 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 190 | Line 265 | public class JSR166TestCase extends Test
265		return 50;
266		}
267
193	–
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	<	* Flag set true if any threadAssert methods fail
279	>	* Returns a timeout in milliseconds to be used in tests that
280	>	* verify that operations block or time out.
281		*/
282	<	volatile boolean threadFailed;
282	>	long timeoutMillis() {
283	>	return SHORT_DELAY_MS / 4;
284	>	}
285
286		/**
287	<	* Initializes test to indicate that no thread assertions have failed
287	>	* Returns a new Date instance representing a time delayMillis
288	>	* milliseconds in the future.
289		*/
290	+	Date delayedDate(long delayMillis) {
291	+	return new Date(System.currentTimeMillis() + delayMillis);
292	+	}
293	+
294	+	/**
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();
214	–	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) {
238	<	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) {
249	<	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) {
260	<	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) {
271	<	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))) {
282	<	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"
432	<	*/
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	<	try {
292	<	threadFailed = true;
293	<	fail("should throw exception");
294	<	} catch (AssertionFailedError e) {
295	<	e.printStackTrace();
296	<	throw e;
297	<	}
448	>	threadFail("should throw exception");
449		}
450
451		/**
452	<	* threadFail with message "Unexpected exception"
452	>	* Calls threadFail with message "should throw" + exceptionName.
453		*/
454	<	public void threadUnexpectedException() {
455	<	threadFailed = true;
305	<	fail("Unexpected exception");
454	>	public void threadShouldThrow(String exceptionName) {
455	>	threadFail("should throw " + exceptionName);
456		}
457
458		/**
459	<	* threadFail with message "Unexpected exception", with argument
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(Throwable ex) {
464	<	threadFailed = true;
465	<	ex.printStackTrace();
466	<	fail("Unexpected exception: " + ex);
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	<	* Wait out termination of a thread pool or fail doing so
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 joinPool(ExecutorService exec) {
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	>	* Waits out termination of a thread pool or fails doing so.
501	>	*/
502	>	void joinPool(ExecutorService exec) {
503		try {
504		exec.shutdown();
505	<	assertTrue(exec.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
506	<	} catch(SecurityException ok) {
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");
509	>	} catch (InterruptedException ie) {
510	>	fail("Unexpected InterruptedException");
511		}
512		}
513
514	+	/**
515	+	* Checks that thread does not terminate within the default
516	+	* millisecond delay of {@code timeoutMillis()}.
517	+	*/
518	+	void assertThreadStaysAlive(Thread thread) {
519	+	assertThreadStaysAlive(thread, timeoutMillis());
520	+	}
521
522		/**
523	<	* fail with message "should throw exception"
523	>	* Checks that thread does not terminate within the given millisecond delay.
524	>	*/
525	>	void assertThreadStaysAlive(Thread thread, long millis) {
526	>	try {
527	>	// No need to optimize the failing case via Thread.join.
528	>	delay(millis);
529	>	assertTrue(thread.isAlive());
530	>	} catch (InterruptedException ie) {
531	>	fail("Unexpected InterruptedException");
532	>	}
533	>	}
534	>
535	>	/**
536	>	* Checks that the threads do not terminate within the default
537	>	* millisecond delay of {@code timeoutMillis()}.
538	>	*/
539	>	void assertThreadsStayAlive(Thread... threads) {
540	>	assertThreadsStayAlive(timeoutMillis(), threads);
541	>	}
542	>
543	>	/**
544	>	* Checks that the threads do not terminate within the given millisecond delay.
545	>	*/
546	>	void assertThreadsStayAlive(long millis, Thread... threads) {
547	>	try {
548	>	// No need to optimize the failing case via Thread.join.
549	>	delay(millis);
550	>	for (Thread thread : threads)
551	>	assertTrue(thread.isAlive());
552	>	} catch (InterruptedException ie) {
553	>	fail("Unexpected InterruptedException");
554	>	}
555	>	}
556	>
557	>	/**
558	>	* Checks that future.get times out, with the default timeout of
559	>	* {@code timeoutMillis()}.
560	>	*/
561	>	void assertFutureTimesOut(Future future) {
562	>	assertFutureTimesOut(future, timeoutMillis());
563	>	}
564	>
565	>	/**
566	>	* Checks that future.get times out, with the given millisecond timeout.
567	>	*/
568	>	void assertFutureTimesOut(Future future, long timeoutMillis) {
569	>	long startTime = System.nanoTime();
570	>	try {
571	>	future.get(timeoutMillis, MILLISECONDS);
572	>	shouldThrow();
573	>	} catch (TimeoutException success) {
574	>	} catch (Exception e) {
575	>	threadUnexpectedException(e);
576	>	} finally { future.cancel(true); }
577	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
578	>	}
579	>
580	>	/**
581	>	* Fails with message "should throw exception".
582		*/
583		public void shouldThrow() {
584		fail("Should throw exception");
585		}
586
587		/**
588	<	* fail with message "Unexpected exception"
588	>	* Fails with message "should throw " + exceptionName.
589		*/
590	<	public void unexpectedException() {
591	<	fail("Unexpected exception");
590	>	public void shouldThrow(String exceptionName) {
591	>	fail("Should throw " + exceptionName);
592		}
593
346	–
594		/**
595		* The number of elements to place in collections, arrays, etc.
596		*/
597	<	static final int SIZE = 20;
597	>	public static final int SIZE = 20;
598
599		// Some convenient Integer constants
600
601	<	static final Integer zero = new Integer(0);
602	<	static final Integer one = new Integer(1);
603	<	static final Integer two = new Integer(2);
604	<	static final Integer three  = new Integer(3);
605	<	static final Integer four  = new Integer(4);
606	<	static final Integer five  = new Integer(5);
607	<	static final Integer six = new Integer(6);
608	<	static final Integer seven = new Integer(7);
609	<	static final Integer eight = new Integer(8);
610	<	static final Integer nine = new Integer(9);
611	<	static final Integer m1  = new Integer(-1);
612	<	static final Integer m2  = new Integer(-2);
613	<	static final Integer m3  = new Integer(-3);
614	<	static final Integer m4 = new Integer(-4);
615	<	static final Integer m5 = new Integer(-5);
616	<	static final Integer m6 = new Integer(-6);
617	<	static final Integer m10 = new Integer(-10);
601	>	public static final Integer zero  = new Integer(0);
602	>	public static final Integer one   = new Integer(1);
603	>	public static final Integer two   = new Integer(2);
604	>	public static final Integer three = new Integer(3);
605	>	public static final Integer four  = new Integer(4);
606	>	public static final Integer five  = new Integer(5);
607	>	public static final Integer six   = new Integer(6);
608	>	public static final Integer seven = new Integer(7);
609	>	public static final Integer eight = new Integer(8);
610	>	public static final Integer nine  = new Integer(9);
611	>	public static final Integer m1  = new Integer(-1);
612	>	public static final Integer m2  = new Integer(-2);
613	>	public static final Integer m3  = new Integer(-3);
614	>	public static final Integer m4  = new Integer(-4);
615	>	public static final Integer m5  = new Integer(-5);
616	>	public static final Integer m6  = new Integer(-6);
617	>	public static final Integer m10 = new Integer(-10);
618
619
620		/**
621	+	* Runs Runnable r with a security policy that permits precisely
622	+	* the specified permissions.  If there is no current security
623	+	* manager, the runnable is run twice, both with and without a
624	+	* security manager.  We require that any security manager permit
625	+	* getPolicy/setPolicy.
626	+	*/
627	+	public void runWithPermissions(Runnable r, Permission... permissions) {
628	+	SecurityManager sm = System.getSecurityManager();
629	+	if (sm == null) {
630	+	r.run();
631	+	}
632	+	runWithSecurityManagerWithPermissions(r, permissions);
633	+	}
634	+
635	+	/**
636	+	* Runs Runnable r with a security policy that permits precisely
637	+	* the specified permissions.  If there is no current security
638	+	* manager, a temporary one is set for the duration of the
639	+	* Runnable.  We require that any security manager permit
640	+	* getPolicy/setPolicy.
641	+	*/
642	+	public void runWithSecurityManagerWithPermissions(Runnable r,
643	+	Permission... permissions) {
644	+	SecurityManager sm = System.getSecurityManager();
645	+	if (sm == null) {
646	+	Policy savedPolicy = Policy.getPolicy();
647	+	try {
648	+	Policy.setPolicy(permissivePolicy());
649	+	System.setSecurityManager(new SecurityManager());
650	+	runWithSecurityManagerWithPermissions(r, permissions);
651	+	} finally {
652	+	System.setSecurityManager(null);
653	+	Policy.setPolicy(savedPolicy);
654	+	}
655	+	} else {
656	+	Policy savedPolicy = Policy.getPolicy();
657	+	AdjustablePolicy policy = new AdjustablePolicy(permissions);
658	+	Policy.setPolicy(policy);
659	+
660	+	try {
661	+	r.run();
662	+	} finally {
663	+	policy.addPermission(new SecurityPermission("setPolicy"));
664	+	Policy.setPolicy(savedPolicy);
665	+	}
666	+	}
667	+	}
668	+
669	+	/**
670	+	* Runs a runnable without any permissions.
671	+	*/
672	+	public void runWithoutPermissions(Runnable r) {
673	+	runWithPermissions(r);
674	+	}
675	+
676	+	/**
677		* A security policy where new permissions can be dynamically added
678		* or all cleared.
679		*/
680	<	static class AdjustablePolicy extends java.security.Policy {
680	>	public static class AdjustablePolicy extends java.security.Policy {
681		Permissions perms = new Permissions();
682	<	AdjustablePolicy() { }
682	>	AdjustablePolicy(Permission... permissions) {
683	>	for (Permission permission : permissions)
684	>	perms.add(permission);
685	>	}
686		void addPermission(Permission perm) { perms.add(perm); }
687		void clearPermissions() { perms = new Permissions(); }
688	<	public PermissionCollection getPermissions(CodeSource cs) {
689	<	return perms;
690	<	}
691	<	public PermissionCollection getPermissions(ProtectionDomain pd) {
692	<	return perms;
693	<	}
694	<	public boolean implies(ProtectionDomain pd, Permission p) {
695	<	return perms.implies(p);
696	<	}
697	<	public void refresh() {}
688	>	public PermissionCollection getPermissions(CodeSource cs) {
689	>	return perms;
690	>	}
691	>	public PermissionCollection getPermissions(ProtectionDomain pd) {
692	>	return perms;
693	>	}
694	>	public boolean implies(ProtectionDomain pd, Permission p) {
695	>	return perms.implies(p);
696	>	}
697	>	public void refresh() {}
698	>	public String toString() {
699	>	List<Permission> ps = new ArrayList<Permission>();
700	>	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
701	>	ps.add(e.nextElement());
702	>	return "AdjustablePolicy with permissions " + ps;
703	>	}
704		}
705
706	+	/**
707	+	* Returns a policy containing all the permissions we ever need.
708	+	*/
709	+	public static Policy permissivePolicy() {
710	+	return new AdjustablePolicy
711	+	// Permissions j.u.c. needs directly
712	+	(new RuntimePermission("modifyThread"),
713	+	new RuntimePermission("getClassLoader"),
714	+	new RuntimePermission("setContextClassLoader"),
715	+	// Permissions needed to change permissions!
716	+	new SecurityPermission("getPolicy"),
717	+	new SecurityPermission("setPolicy"),
718	+	new RuntimePermission("setSecurityManager"),
719	+	// Permissions needed by the junit test harness
720	+	new RuntimePermission("accessDeclaredMembers"),
721	+	new PropertyPermission("*", "read"),
722	+	new java.io.FilePermission("<<ALL FILES>>", "read"));
723	+	}
724
725	<	// Some convenient Runnable classes
725	>	/**
726	>	* Sleeps until the given time has elapsed.
727	>	* Throws AssertionFailedError if interrupted.
728	>	*/
729	>	void sleep(long millis) {
730	>	try {
731	>	delay(millis);
732	>	} catch (InterruptedException ie) {
733	>	AssertionFailedError afe =
734	>	new AssertionFailedError("Unexpected InterruptedException");
735	>	afe.initCause(ie);
736	>	throw afe;
737	>	}
738	>	}
739
740	<	static class NoOpRunnable implements Runnable {
741	<	public void run() {}
740	>	/**
741	>	* Spin-waits up to the specified number of milliseconds for the given
742	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
743	>	*/
744	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
745	>	long startTime = System.nanoTime();
746	>	for (;;) {
747	>	Thread.State s = thread.getState();
748	>	if (s == Thread.State.BLOCKED ||
749	>	s == Thread.State.WAITING ||
750	>	s == Thread.State.TIMED_WAITING)
751	>	return;
752	>	else if (s == Thread.State.TERMINATED)
753	>	fail("Unexpected thread termination");
754	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
755	>	threadAssertTrue(thread.isAlive());
756	>	return;
757	>	}
758	>	Thread.yield();
759	>	}
760		}
761
762	<	static class NoOpCallable implements Callable {
763	<	public Object call() { return Boolean.TRUE; }
762	>	/**
763	>	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
764	>	* state: BLOCKED, WAITING, or TIMED_WAITING.
765	>	*/
766	>	void waitForThreadToEnterWaitState(Thread thread) {
767	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
768		}
769
770	<	static final String TEST_STRING = "a test string";
770	>	/**
771	>	* Returns the number of milliseconds since time given by
772	>	* startNanoTime, which must have been previously returned from a
773	>	* call to {@link System.nanoTime()}.
774	>	*/
775	>	long millisElapsedSince(long startNanoTime) {
776	>	return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
777	>	}
778
779	<	static class StringTask implements Callable<String> {
780	<	public String call() { return TEST_STRING; }
779	>	/**
780	>	* Returns a new started daemon Thread running the given runnable.
781	>	*/
782	>	Thread newStartedThread(Runnable runnable) {
783	>	Thread t = new Thread(runnable);
784	>	t.setDaemon(true);
785	>	t.start();
786	>	return t;
787		}
788
789	<	static class NPETask implements Callable<String> {
790	<	public String call() { throw new NullPointerException(); }
789	>	/**
790	>	* Waits for the specified time (in milliseconds) for the thread
791	>	* to terminate (using {@link Thread#join(long)}), else interrupts
792	>	* the thread (in the hope that it may terminate later) and fails.
793	>	*/
794	>	void awaitTermination(Thread t, long timeoutMillis) {
795	>	try {
796	>	t.join(timeoutMillis);
797	>	} catch (InterruptedException ie) {
798	>	threadUnexpectedException(ie);
799	>	} finally {
800	>	if (t.getState() != Thread.State.TERMINATED) {
801	>	t.interrupt();
802	>	fail("Test timed out");
803	>	}
804	>	}
805		}
806
807	<	static class CallableOne implements Callable<Integer> {
808	<	public Integer call() { return one; }
807	>	/**
808	>	* Waits for LONG_DELAY_MS milliseconds for the thread to
809	>	* terminate (using {@link Thread#join(long)}), else interrupts
810	>	* the thread (in the hope that it may terminate later) and fails.
811	>	*/
812	>	void awaitTermination(Thread t) {
813	>	awaitTermination(t, LONG_DELAY_MS);
814		}
815
816	<	class ShortRunnable implements Runnable {
817	<	public void run() {
816	>	// Some convenient Runnable classes
817	>
818	>	public abstract class CheckedRunnable implements Runnable {
819	>	protected abstract void realRun() throws Throwable;
820	>
821	>	public final void run() {
822		try {
823	<	Thread.sleep(SHORT_DELAY_MS);
824	<	}
825	<	catch(Exception e) {
425	<	threadUnexpectedException(e);
823	>	realRun();
824	>	} catch (Throwable t) {
825	>	threadUnexpectedException(t);
826		}
827		}
828		}
829
830	<	class ShortInterruptedRunnable implements Runnable {
831	<	public void run() {
830	>	public abstract class RunnableShouldThrow implements Runnable {
831	>	protected abstract void realRun() throws Throwable;
832	>
833	>	final Class<?> exceptionClass;
834	>
835	>	<T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) {
836	>	this.exceptionClass = exceptionClass;
837	>	}
838	>
839	>	public final void run() {
840		try {
841	<	Thread.sleep(SHORT_DELAY_MS);
842	<	threadShouldThrow();
843	<	}
844	<	catch(InterruptedException success) {
841	>	realRun();
842	>	threadShouldThrow(exceptionClass.getSimpleName());
843	>	} catch (Throwable t) {
844	>	if (! exceptionClass.isInstance(t))
845	>	threadUnexpectedException(t);
846		}
847		}
848		}
849
850	<	class SmallRunnable implements Runnable {
851	<	public void run() {
850	>	public abstract class ThreadShouldThrow extends Thread {
851	>	protected abstract void realRun() throws Throwable;
852	>
853	>	final Class<?> exceptionClass;
854	>
855	>	<T extends Throwable> ThreadShouldThrow(Class<T> exceptionClass) {
856	>	this.exceptionClass = exceptionClass;
857	>	}
858	>
859	>	public final void run() {
860		try {
861	<	Thread.sleep(SMALL_DELAY_MS);
862	<	}
863	<	catch(Exception e) {
864	<	threadUnexpectedException(e);
861	>	realRun();
862	>	threadShouldThrow(exceptionClass.getSimpleName());
863	>	} catch (Throwable t) {
864	>	if (! exceptionClass.isInstance(t))
865	>	threadUnexpectedException(t);
866		}
867		}
868		}
869
870	<	class SmallPossiblyInterruptedRunnable implements Runnable {
871	<	public void run() {
870	>	public abstract class CheckedInterruptedRunnable implements Runnable {
871	>	protected abstract void realRun() throws Throwable;
872	>
873	>	public final void run() {
874		try {
875	<	Thread.sleep(SMALL_DELAY_MS);
876	<	}
877	<	catch(Exception e) {
875	>	realRun();
876	>	threadShouldThrow("InterruptedException");
877	>	} catch (InterruptedException success) {
878	>	threadAssertFalse(Thread.interrupted());
879	>	} catch (Throwable t) {
880	>	threadUnexpectedException(t);
881		}
882		}
883		}
884
885	<	class SmallCallable implements Callable {
886	<	public Object call() {
885	>	public abstract class CheckedCallable<T> implements Callable<T> {
886	>	protected abstract T realCall() throws Throwable;
887	>
888	>	public final T call() {
889		try {
890	<	Thread.sleep(SMALL_DELAY_MS);
891	<	}
892	<	catch(Exception e) {
893	<	threadUnexpectedException(e);
890	>	return realCall();
891	>	} catch (Throwable t) {
892	>	threadUnexpectedException(t);
893	>	return null;
894		}
470	–	return Boolean.TRUE;
895		}
896		}
897
898	<	class SmallInterruptedRunnable implements Runnable {
899	<	public void run() {
898	>	public abstract class CheckedInterruptedCallable<T>
899	>	implements Callable<T> {
900	>	protected abstract T realCall() throws Throwable;
901	>
902	>	public final T call() {
903		try {
904	<	Thread.sleep(SMALL_DELAY_MS);
905	<	threadShouldThrow();
906	<	}
907	<	catch(InterruptedException success) {
904	>	T result = realCall();
905	>	threadShouldThrow("InterruptedException");
906	>	return result;
907	>	} catch (InterruptedException success) {
908	>	threadAssertFalse(Thread.interrupted());
909	>	} catch (Throwable t) {
910	>	threadUnexpectedException(t);
911		}
912	+	return null;
913		}
914		}
915
916	+	public static class NoOpRunnable implements Runnable {
917	+	public void run() {}
918	+	}
919
920	<	class MediumRunnable implements Runnable {
921	<	public void run() {
922	<	try {
923	<	Thread.sleep(MEDIUM_DELAY_MS);
924	<	}
925	<	catch(Exception e) {
926	<	threadUnexpectedException(e);
927	<	}
920	>	public static class NoOpCallable implements Callable {
921	>	public Object call() { return Boolean.TRUE; }
922	>	}
923	>
924	>	public static final String TEST_STRING = "a test string";
925	>
926	>	public static class StringTask implements Callable<String> {
927	>	public String call() { return TEST_STRING; }
928	>	}
929	>
930	>	public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
931	>	return new CheckedCallable<String>() {
932	>	protected String realCall() {
933	>	try {
934	>	latch.await();
935	>	} catch (InterruptedException quittingTime) {}
936	>	return TEST_STRING;
937	>	}};
938	>	}
939	>
940	>	public Runnable awaiter(final CountDownLatch latch) {
941	>	return new CheckedRunnable() {
942	>	public void realRun() throws InterruptedException {
943	>	await(latch);
944	>	}};
945	>	}
946	>
947	>	public void await(CountDownLatch latch) {
948	>	try {
949	>	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
950	>	} catch (Throwable t) {
951	>	threadUnexpectedException(t);
952		}
953		}
954
955	<	class MediumInterruptedRunnable implements Runnable {
956	<	public void run() {
955	>	public void await(Semaphore semaphore) {
956	>	try {
957	>	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
958	>	} catch (Throwable t) {
959	>	threadUnexpectedException(t);
960	>	}
961	>	}
962	>
963	>	//     /**
964	>	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
965	>	//      */
966	>	//     public void await(AtomicBoolean flag) {
967	>	//         await(flag, LONG_DELAY_MS);
968	>	//     }
969	>
970	>	//     /**
971	>	//      * Spin-waits up to the specified timeout until flag becomes true.
972	>	//      */
973	>	//     public void await(AtomicBoolean flag, long timeoutMillis) {
974	>	//         long startTime = System.nanoTime();
975	>	//         while (!flag.get()) {
976	>	//             if (millisElapsedSince(startTime) > timeoutMillis)
977	>	//                 throw new AssertionFailedError("timed out");
978	>	//             Thread.yield();
979	>	//         }
980	>	//     }
981	>
982	>	public static class NPETask implements Callable<String> {
983	>	public String call() { throw new NullPointerException(); }
984	>	}
985	>
986	>	public static class CallableOne implements Callable<Integer> {
987	>	public Integer call() { return one; }
988	>	}
989	>
990	>	public class ShortRunnable extends CheckedRunnable {
991	>	protected void realRun() throws Throwable {
992	>	delay(SHORT_DELAY_MS);
993	>	}
994	>	}
995	>
996	>	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
997	>	protected void realRun() throws InterruptedException {
998	>	delay(SHORT_DELAY_MS);
999	>	}
1000	>	}
1001	>
1002	>	public class SmallRunnable extends CheckedRunnable {
1003	>	protected void realRun() throws Throwable {
1004	>	delay(SMALL_DELAY_MS);
1005	>	}
1006	>	}
1007	>
1008	>	public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1009	>	protected void realRun() {
1010		try {
1011	<	Thread.sleep(MEDIUM_DELAY_MS);
1012	<	threadShouldThrow();
502	<	}
503	<	catch(InterruptedException success) {
504	<	}
1011	>	delay(SMALL_DELAY_MS);
1012	>	} catch (InterruptedException ok) {}
1013		}
1014		}
1015
1016	<	class MediumPossiblyInterruptedRunnable implements Runnable {
1017	<	public void run() {
1016	>	public class SmallCallable extends CheckedCallable {
1017	>	protected Object realCall() throws InterruptedException {
1018	>	delay(SMALL_DELAY_MS);
1019	>	return Boolean.TRUE;
1020	>	}
1021	>	}
1022	>
1023	>	public class MediumRunnable extends CheckedRunnable {
1024	>	protected void realRun() throws Throwable {
1025	>	delay(MEDIUM_DELAY_MS);
1026	>	}
1027	>	}
1028	>
1029	>	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1030	>	protected void realRun() throws InterruptedException {
1031	>	delay(MEDIUM_DELAY_MS);
1032	>	}
1033	>	}
1034	>
1035	>	public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1036	>	return new CheckedRunnable() {
1037	>	protected void realRun() {
1038	>	try {
1039	>	delay(timeoutMillis);
1040	>	} catch (InterruptedException ok) {}
1041	>	}};
1042	>	}
1043	>
1044	>	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1045	>	protected void realRun() {
1046		try {
1047	<	Thread.sleep(MEDIUM_DELAY_MS);
1048	<	}
513	<	catch(InterruptedException success) {
514	<	}
1047	>	delay(MEDIUM_DELAY_MS);
1048	>	} catch (InterruptedException ok) {}
1049		}
1050		}
1051
1052	<	class LongPossiblyInterruptedRunnable implements Runnable {
1053	<	public void run() {
1052	>	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1053	>	protected void realRun() {
1054		try {
1055	<	Thread.sleep(LONG_DELAY_MS);
1056	<	}
523	<	catch(InterruptedException success) {
524	<	}
1055	>	delay(LONG_DELAY_MS);
1056	>	} catch (InterruptedException ok) {}
1057		}
1058		}
1059
1060		/**
1061		* For use as ThreadFactory in constructors
1062		*/
1063	<	static class SimpleThreadFactory implements ThreadFactory{
1064	<	public Thread newThread(Runnable r){
1063	>	public static class SimpleThreadFactory implements ThreadFactory {
1064	>	public Thread newThread(Runnable r) {
1065		return new Thread(r);
1066		}
1067		}
1068
1069	<	static class TrackedShortRunnable implements Runnable {
1070	<	volatile boolean done = false;
1069	>	public interface TrackedRunnable extends Runnable {
1070	>	boolean isDone();
1071	>	}
1072	>
1073	>	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1074	>	return new TrackedRunnable() {
1075	>	private volatile boolean done = false;
1076	>	public boolean isDone() { return done; }
1077	>	public void run() {
1078	>	try {
1079	>	delay(timeoutMillis);
1080	>	done = true;
1081	>	} catch (InterruptedException ok) {}
1082	>	}
1083	>	};
1084	>	}
1085	>
1086	>	public static class TrackedShortRunnable implements Runnable {
1087	>	public volatile boolean done = false;
1088		public void run() {
1089		try {
1090	<	Thread.sleep(SMALL_DELAY_MS);
1090	>	delay(SHORT_DELAY_MS);
1091		done = true;
1092	<	} catch(Exception e){
544	<	}
1092	>	} catch (InterruptedException ok) {}
1093		}
1094		}
1095
1096	<	static class TrackedMediumRunnable implements Runnable {
1097	<	volatile boolean done = false;
1096	>	public static class TrackedSmallRunnable implements Runnable {
1097	>	public volatile boolean done = false;
1098		public void run() {
1099		try {
1100	<	Thread.sleep(MEDIUM_DELAY_MS);
1100	>	delay(SMALL_DELAY_MS);
1101		done = true;
1102	<	} catch(Exception e){
555	<	}
1102	>	} catch (InterruptedException ok) {}
1103		}
1104		}
1105
1106	<	static class TrackedLongRunnable implements Runnable {
1107	<	volatile boolean done = false;
1106	>	public static class TrackedMediumRunnable implements Runnable {
1107	>	public volatile boolean done = false;
1108		public void run() {
1109		try {
1110	<	Thread.sleep(LONG_DELAY_MS);
1110	>	delay(MEDIUM_DELAY_MS);
1111		done = true;
1112	<	} catch(Exception e){
566	<	}
1112	>	} catch (InterruptedException ok) {}
1113		}
1114		}
1115
1116	<	static class TrackedNoOpRunnable implements Runnable {
1117	<	volatile boolean done = false;
1116	>	public static class TrackedLongRunnable implements Runnable {
1117	>	public volatile boolean done = false;
1118	>	public void run() {
1119	>	try {
1120	>	delay(LONG_DELAY_MS);
1121	>	done = true;
1122	>	} catch (InterruptedException ok) {}
1123	>	}
1124	>	}
1125	>
1126	>	public static class TrackedNoOpRunnable implements Runnable {
1127	>	public volatile boolean done = false;
1128		public void run() {
1129		done = true;
1130		}
1131		}
1132
1133	<	static class TrackedCallable implements Callable {
1134	<	volatile boolean done = false;
1133	>	public static class TrackedCallable implements Callable {
1134	>	public volatile boolean done = false;
1135		public Object call() {
1136		try {
1137	<	Thread.sleep(SMALL_DELAY_MS);
1137	>	delay(SMALL_DELAY_MS);
1138		done = true;
1139	<	} catch(Exception e){
584	<	}
1139	>	} catch (InterruptedException ok) {}
1140		return Boolean.TRUE;
1141		}
1142		}
1143
1144	+	/**
1145	+	* Analog of CheckedRunnable for RecursiveAction
1146	+	*/
1147	+	public abstract class CheckedRecursiveAction extends RecursiveAction {
1148	+	protected abstract void realCompute() throws Throwable;
1149	+
1150	+	public final void compute() {
1151	+	try {
1152	+	realCompute();
1153	+	} catch (Throwable t) {
1154	+	threadUnexpectedException(t);
1155	+	}
1156	+	}
1157	+	}
1158	+
1159	+	/**
1160	+	* Analog of CheckedCallable for RecursiveTask
1161	+	*/
1162	+	public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1163	+	protected abstract T realCompute() throws Throwable;
1164	+
1165	+	public final T compute() {
1166	+	try {
1167	+	return realCompute();
1168	+	} catch (Throwable t) {
1169	+	threadUnexpectedException(t);
1170	+	return null;
1171	+	}
1172	+	}
1173	+	}
1174
1175		/**
1176		* For use as RejectedExecutionHandler in constructors
1177		*/
1178	<	static class NoOpREHandler implements RejectedExecutionHandler{
1179	<	public void rejectedExecution(Runnable r, ThreadPoolExecutor executor){}
1178	>	public static class NoOpREHandler implements RejectedExecutionHandler {
1179	>	public void rejectedExecution(Runnable r,
1180	>	ThreadPoolExecutor executor) {}
1181	>	}
1182	>
1183	>	/**
1184	>	* A CyclicBarrier that uses timed await and fails with
1185	>	* AssertionFailedErrors instead of throwing checked exceptions.
1186	>	*/
1187	>	public class CheckedBarrier extends CyclicBarrier {
1188	>	public CheckedBarrier(int parties) { super(parties); }
1189	>
1190	>	public int await() {
1191	>	try {
1192	>	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1193	>	} catch (TimeoutException e) {
1194	>	throw new AssertionFailedError("timed out");
1195	>	} catch (Exception e) {
1196	>	AssertionFailedError afe =
1197	>	new AssertionFailedError("Unexpected exception: " + e);
1198	>	afe.initCause(e);
1199	>	throw afe;
1200	>	}
1201	>	}
1202		}
1203
1204	+	void checkEmpty(BlockingQueue q) {
1205	+	try {
1206	+	assertTrue(q.isEmpty());
1207	+	assertEquals(0, q.size());
1208	+	assertNull(q.peek());
1209	+	assertNull(q.poll());
1210	+	assertNull(q.poll(0, MILLISECONDS));
1211	+	assertEquals(q.toString(), "[]");
1212	+	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1213	+	assertFalse(q.iterator().hasNext());
1214	+	try {
1215	+	q.element();
1216	+	shouldThrow();
1217	+	} catch (NoSuchElementException success) {}
1218	+	try {
1219	+	q.iterator().next();
1220	+	shouldThrow();
1221	+	} catch (NoSuchElementException success) {}
1222	+	try {
1223	+	q.remove();
1224	+	shouldThrow();
1225	+	} catch (NoSuchElementException success) {}
1226	+	} catch (InterruptedException ie) {
1227	+	threadUnexpectedException(ie);
1228	+	}
1229	+	}
1230	+
1231	+	void assertSerialEquals(Object x, Object y) {
1232	+	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1233	+	}
1234
1235	+	void assertNotSerialEquals(Object x, Object y) {
1236	+	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1237	+	}
1238	+
1239	+	byte[] serialBytes(Object o) {
1240	+	try {
1241	+	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1242	+	ObjectOutputStream oos = new ObjectOutputStream(bos);
1243	+	oos.writeObject(o);
1244	+	oos.flush();
1245	+	oos.close();
1246	+	return bos.toByteArray();
1247	+	} catch (Throwable t) {
1248	+	threadUnexpectedException(t);
1249	+	return new byte[0];
1250	+	}
1251	+	}
1252	+
1253	+	@SuppressWarnings("unchecked")
1254	+	<T> T serialClone(T o) {
1255	+	try {
1256	+	ObjectInputStream ois = new ObjectInputStream
1257	+	(new ByteArrayInputStream(serialBytes(o)));
1258	+	T clone = (T) ois.readObject();
1259	+	assertSame(o.getClass(), clone.getClass());
1260	+	return clone;
1261	+	} catch (Throwable t) {
1262	+	threadUnexpectedException(t);
1263	+	return null;
1264	+	}
1265	+	}
1266		}

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