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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.53 by jsr166, Thu Sep 16 00:52:49 2010 UTC vs.
Revision 1.123 by jsr166, Wed Dec 31 19:05:42 2014 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.PropertyPermission;
11	–	import java.util.concurrent.*;
12	–	import java.util.concurrent.atomic.AtomicReference;
9		import static java.util.concurrent.TimeUnit.MILLISECONDS;
10	+	import static java.util.concurrent.TimeUnit.NANOSECONDS;
11	+
12	+	import java.io.ByteArrayInputStream;
13	+	import java.io.ByteArrayOutputStream;
14	+	import java.io.ObjectInputStream;
15	+	import java.io.ObjectOutputStream;
16	+	import java.lang.management.ManagementFactory;
17	+	import java.lang.management.ThreadInfo;
18	+	import java.lang.reflect.Method;
19		import java.security.CodeSource;
20		import java.security.Permission;
21		import java.security.PermissionCollection;
#	Line 18 | Line 23 | import java.security.Permissions;
23		import java.security.Policy;
24		import java.security.ProtectionDomain;
25		import java.security.SecurityPermission;
26	+	import java.util.ArrayList;
27	+	import java.util.Arrays;
28	+	import java.util.Date;
29	+	import java.util.Enumeration;
30	+	import java.util.List;
31	+	import java.util.NoSuchElementException;
32	+	import java.util.PropertyPermission;
33	+	import java.util.concurrent.BlockingQueue;
34	+	import java.util.concurrent.Callable;
35	+	import java.util.concurrent.CountDownLatch;
36	+	import java.util.concurrent.CyclicBarrier;
37	+	import java.util.concurrent.ExecutorService;
38	+	import java.util.concurrent.Future;
39	+	import java.util.concurrent.RecursiveAction;
40	+	import java.util.concurrent.RecursiveTask;
41	+	import java.util.concurrent.RejectedExecutionHandler;
42	+	import java.util.concurrent.Semaphore;
43	+	import java.util.concurrent.ThreadFactory;
44	+	import java.util.concurrent.ThreadPoolExecutor;
45	+	import java.util.concurrent.TimeoutException;
46	+	import java.util.concurrent.atomic.AtomicReference;
47	+	import java.util.regex.Pattern;
48	+
49	+	import junit.framework.AssertionFailedError;
50	+	import junit.framework.Test;
51	+	import junit.framework.TestCase;
52	+	import junit.framework.TestSuite;
53
54		/**
55		* Base class for JSR166 Junit TCK tests.  Defines some constants,
#	Line 60 | Line 92 | import java.security.SecurityPermission;
92		*
93		* </ol>
94		*
95	<	* <p> <b>Other notes</b>
95	>	* <p><b>Other notes</b>
96		* <ul>
97		*
98		* <li> Usually, there is one testcase method per JSR166 method
#	Line 96 | Line 128 | public class JSR166TestCase extends Test
128		private static final boolean useSecurityManager =
129		Boolean.getBoolean("jsr166.useSecurityManager");
130
131	+	protected static final boolean expensiveTests =
132	+	Boolean.getBoolean("jsr166.expensiveTests");
133	+
134	+	/**
135	+	* If true, also run tests that are not part of the official tck
136	+	* because they test unspecified implementation details.
137	+	*/
138	+	protected static final boolean testImplementationDetails =
139	+	Boolean.getBoolean("jsr166.testImplementationDetails");
140	+
141	+	/**
142	+	* If true, report on stdout all "slow" tests, that is, ones that
143	+	* take more than profileThreshold milliseconds to execute.
144	+	*/
145	+	private static final boolean profileTests =
146	+	Boolean.getBoolean("jsr166.profileTests");
147	+
148	+	/**
149	+	* The number of milliseconds that tests are permitted for
150	+	* execution without being reported, when profileTests is set.
151	+	*/
152	+	private static final long profileThreshold =
153	+	Long.getLong("jsr166.profileThreshold", 100);
154	+
155	+	/**
156	+	* The number of repetitions per test (for tickling rare bugs).
157	+	*/
158	+	private static final int runsPerTest =
159	+	Integer.getInteger("jsr166.runsPerTest", 1);
160	+
161	+	/**
162	+	* A filter for tests to run, matching strings of the form
163	+	* methodName(className), e.g. "testInvokeAll5(ForkJoinPoolTest)"
164	+	* Usefully combined with jsr166.runsPerTest.
165	+	*/
166	+	private static final Pattern methodFilter = methodFilter();
167	+
168	+	private static Pattern methodFilter() {
169	+	String regex = System.getProperty("jsr166.methodFilter");
170	+	return (regex == null) ? null : Pattern.compile(regex);
171	+	}
172	+
173	+	protected void runTest() throws Throwable {
174	+	if (methodFilter == null
175	+	|| methodFilter.matcher(toString()).find()) {
176	+	for (int i = 0; i < runsPerTest; i++) {
177	+	if (profileTests)
178	+	runTestProfiled();
179	+	else
180	+	super.runTest();
181	+	}
182	+	}
183	+	}
184	+
185	+	protected void runTestProfiled() throws Throwable {
186	+	// Warmup run, notably to trigger all needed classloading.
187	+	super.runTest();
188	+	long t0 = System.nanoTime();
189	+	try {
190	+	super.runTest();
191	+	} finally {
192	+	long elapsedMillis = millisElapsedSince(t0);
193	+	if (elapsedMillis >= profileThreshold)
194	+	System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
195	+	}
196	+	}
197	+
198		/**
199	<	* Runs all JSR166 unit tests using junit.textui.TestRunner
199	>	* Runs all JSR166 unit tests using junit.textui.TestRunner.
200	>	* Optional command line arg provides the number of iterations to
201	>	* repeat running the tests.
202		*/
203		public static void main(String[] args) {
204		if (useSecurityManager) {
#	Line 105 | Line 206 | public class JSR166TestCase extends Test
206		Policy.setPolicy(permissivePolicy());
207		System.setSecurityManager(new SecurityManager());
208		}
209	<	int iters = 1;
210	<	if (args.length > 0)
110	<	iters = Integer.parseInt(args[0]);
209	>	int iters = (args.length == 0) ? 1 : Integer.parseInt(args[0]);
210	>
211		Test s = suite();
212		for (int i = 0; i < iters; ++i) {
213		junit.textui.TestRunner.run(s);
#	Line 117 | Line 217 | public class JSR166TestCase extends Test
217		System.exit(0);
218		}
219
220	+	public static TestSuite newTestSuite(Object... suiteOrClasses) {
221	+	TestSuite suite = new TestSuite();
222	+	for (Object suiteOrClass : suiteOrClasses) {
223	+	if (suiteOrClass instanceof TestSuite)
224	+	suite.addTest((TestSuite) suiteOrClass);
225	+	else if (suiteOrClass instanceof Class)
226	+	suite.addTest(new TestSuite((Class<?>) suiteOrClass));
227	+	else
228	+	throw new ClassCastException("not a test suite or class");
229	+	}
230	+	return suite;
231	+	}
232	+
233	+	public static void addNamedTestClasses(TestSuite suite,
234	+	String... testClassNames) {
235	+	for (String testClassName : testClassNames) {
236	+	try {
237	+	Class<?> testClass = Class.forName(testClassName);
238	+	Method m = testClass.getDeclaredMethod("suite",
239	+	new Class<?>[0]);
240	+	suite.addTest(newTestSuite((Test)m.invoke(null)));
241	+	} catch (Exception e) {
242	+	throw new Error("Missing test class", e);
243	+	}
244	+	}
245	+	}
246	+
247	+	public static final double JAVA_CLASS_VERSION;
248	+	public static final String JAVA_SPECIFICATION_VERSION;
249	+	static {
250	+	try {
251	+	JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
252	+	new java.security.PrivilegedAction<Double>() {
253	+	public Double run() {
254	+	return Double.valueOf(System.getProperty("java.class.version"));}});
255	+	JAVA_SPECIFICATION_VERSION = java.security.AccessController.doPrivileged(
256	+	new java.security.PrivilegedAction<String>() {
257	+	public String run() {
258	+	return System.getProperty("java.specification.version");}});
259	+	} catch (Throwable t) {
260	+	throw new Error(t);
261	+	}
262	+	}
263	+
264	+	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
265	+	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
266	+	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
267	+	public static boolean atLeastJava9() {
268	+	// As of 2014-05, java9 still uses 52.0 class file version
269	+	return JAVA_SPECIFICATION_VERSION.startsWith("1.9");
270	+	}
271	+
272		/**
273	<	* Collects all JSR166 unit tests as one suite
273	>	* Collects all JSR166 unit tests as one suite.
274		*/
275		public static Test suite() {
276	<	TestSuite suite = new TestSuite("JSR166 Unit Tests");
277	<
278	<	suite.addTest(new TestSuite(ForkJoinPoolTest.class));
279	<	suite.addTest(new TestSuite(ForkJoinTaskTest.class));
280	<	suite.addTest(new TestSuite(RecursiveActionTest.class));
281	<	suite.addTest(new TestSuite(RecursiveTaskTest.class));
282	<	suite.addTest(new TestSuite(LinkedTransferQueueTest.class));
283	<	suite.addTest(new TestSuite(PhaserTest.class));
284	<	suite.addTest(new TestSuite(ThreadLocalRandomTest.class));
285	<	suite.addTest(new TestSuite(AbstractExecutorServiceTest.class));
286	<	suite.addTest(new TestSuite(AbstractQueueTest.class));
287	<	suite.addTest(new TestSuite(AbstractQueuedSynchronizerTest.class));
288	<	suite.addTest(new TestSuite(AbstractQueuedLongSynchronizerTest.class));
289	<	suite.addTest(new TestSuite(ArrayBlockingQueueTest.class));
290	<	suite.addTest(new TestSuite(ArrayDequeTest.class));
291	<	suite.addTest(new TestSuite(AtomicBooleanTest.class));
292	<	suite.addTest(new TestSuite(AtomicIntegerArrayTest.class));
293	<	suite.addTest(new TestSuite(AtomicIntegerFieldUpdaterTest.class));
294	<	suite.addTest(new TestSuite(AtomicIntegerTest.class));
295	<	suite.addTest(new TestSuite(AtomicLongArrayTest.class));
296	<	suite.addTest(new TestSuite(AtomicLongFieldUpdaterTest.class));
297	<	suite.addTest(new TestSuite(AtomicLongTest.class));
298	<	suite.addTest(new TestSuite(AtomicMarkableReferenceTest.class));
299	<	suite.addTest(new TestSuite(AtomicReferenceArrayTest.class));
300	<	suite.addTest(new TestSuite(AtomicReferenceFieldUpdaterTest.class));
301	<	suite.addTest(new TestSuite(AtomicReferenceTest.class));
302	<	suite.addTest(new TestSuite(AtomicStampedReferenceTest.class));
303	<	suite.addTest(new TestSuite(ConcurrentHashMapTest.class));
304	<	suite.addTest(new TestSuite(ConcurrentLinkedDequeTest.class));
305	<	suite.addTest(new TestSuite(ConcurrentLinkedQueueTest.class));
306	<	suite.addTest(new TestSuite(ConcurrentSkipListMapTest.class));
307	<	suite.addTest(new TestSuite(ConcurrentSkipListSubMapTest.class));
308	<	suite.addTest(new TestSuite(ConcurrentSkipListSetTest.class));
309	<	suite.addTest(new TestSuite(ConcurrentSkipListSubSetTest.class));
310	<	suite.addTest(new TestSuite(CopyOnWriteArrayListTest.class));
311	<	suite.addTest(new TestSuite(CopyOnWriteArraySetTest.class));
312	<	suite.addTest(new TestSuite(CountDownLatchTest.class));
313	<	suite.addTest(new TestSuite(CyclicBarrierTest.class));
314	<	suite.addTest(new TestSuite(DelayQueueTest.class));
315	<	suite.addTest(new TestSuite(EntryTest.class));
316	<	suite.addTest(new TestSuite(ExchangerTest.class));
317	<	suite.addTest(new TestSuite(ExecutorsTest.class));
318	<	suite.addTest(new TestSuite(ExecutorCompletionServiceTest.class));
319	<	suite.addTest(new TestSuite(FutureTaskTest.class));
320	<	suite.addTest(new TestSuite(LinkedBlockingDequeTest.class));
321	<	suite.addTest(new TestSuite(LinkedBlockingQueueTest.class));
322	<	suite.addTest(new TestSuite(LinkedListTest.class));
323	<	suite.addTest(new TestSuite(LockSupportTest.class));
324	<	suite.addTest(new TestSuite(PriorityBlockingQueueTest.class));
325	<	suite.addTest(new TestSuite(PriorityQueueTest.class));
326	<	suite.addTest(new TestSuite(ReentrantLockTest.class));
327	<	suite.addTest(new TestSuite(ReentrantReadWriteLockTest.class));
328	<	suite.addTest(new TestSuite(ScheduledExecutorTest.class));
329	<	suite.addTest(new TestSuite(ScheduledExecutorSubclassTest.class));
330	<	suite.addTest(new TestSuite(SemaphoreTest.class));
331	<	suite.addTest(new TestSuite(SynchronousQueueTest.class));
332	<	suite.addTest(new TestSuite(SystemTest.class));
333	<	suite.addTest(new TestSuite(ThreadLocalTest.class));
334	<	suite.addTest(new TestSuite(ThreadPoolExecutorTest.class));
335	<	suite.addTest(new TestSuite(ThreadPoolExecutorSubclassTest.class));
336	<	suite.addTest(new TestSuite(ThreadTest.class));
337	<	suite.addTest(new TestSuite(TimeUnitTest.class));
338	<	suite.addTest(new TestSuite(TreeMapTest.class));
339	<	suite.addTest(new TestSuite(TreeSetTest.class));
340	<	suite.addTest(new TestSuite(TreeSubMapTest.class));
341	<	suite.addTest(new TestSuite(TreeSubSetTest.class));
276	>	// Java7+ test classes
277	>	TestSuite suite = newTestSuite(
278	>	ForkJoinPoolTest.suite(),
279	>	ForkJoinTaskTest.suite(),
280	>	RecursiveActionTest.suite(),
281	>	RecursiveTaskTest.suite(),
282	>	LinkedTransferQueueTest.suite(),
283	>	PhaserTest.suite(),
284	>	ThreadLocalRandomTest.suite(),
285	>	AbstractExecutorServiceTest.suite(),
286	>	AbstractQueueTest.suite(),
287	>	AbstractQueuedSynchronizerTest.suite(),
288	>	AbstractQueuedLongSynchronizerTest.suite(),
289	>	ArrayBlockingQueueTest.suite(),
290	>	ArrayDequeTest.suite(),
291	>	AtomicBooleanTest.suite(),
292	>	AtomicIntegerArrayTest.suite(),
293	>	AtomicIntegerFieldUpdaterTest.suite(),
294	>	AtomicIntegerTest.suite(),
295	>	AtomicLongArrayTest.suite(),
296	>	AtomicLongFieldUpdaterTest.suite(),
297	>	AtomicLongTest.suite(),
298	>	AtomicMarkableReferenceTest.suite(),
299	>	AtomicReferenceArrayTest.suite(),
300	>	AtomicReferenceFieldUpdaterTest.suite(),
301	>	AtomicReferenceTest.suite(),
302	>	AtomicStampedReferenceTest.suite(),
303	>	ConcurrentHashMapTest.suite(),
304	>	ConcurrentLinkedDequeTest.suite(),
305	>	ConcurrentLinkedQueueTest.suite(),
306	>	ConcurrentSkipListMapTest.suite(),
307	>	ConcurrentSkipListSubMapTest.suite(),
308	>	ConcurrentSkipListSetTest.suite(),
309	>	ConcurrentSkipListSubSetTest.suite(),
310	>	CopyOnWriteArrayListTest.suite(),
311	>	CopyOnWriteArraySetTest.suite(),
312	>	CountDownLatchTest.suite(),
313	>	CyclicBarrierTest.suite(),
314	>	DelayQueueTest.suite(),
315	>	EntryTest.suite(),
316	>	ExchangerTest.suite(),
317	>	ExecutorsTest.suite(),
318	>	ExecutorCompletionServiceTest.suite(),
319	>	FutureTaskTest.suite(),
320	>	LinkedBlockingDequeTest.suite(),
321	>	LinkedBlockingQueueTest.suite(),
322	>	LinkedListTest.suite(),
323	>	LockSupportTest.suite(),
324	>	PriorityBlockingQueueTest.suite(),
325	>	PriorityQueueTest.suite(),
326	>	ReentrantLockTest.suite(),
327	>	ReentrantReadWriteLockTest.suite(),
328	>	ScheduledExecutorTest.suite(),
329	>	ScheduledExecutorSubclassTest.suite(),
330	>	SemaphoreTest.suite(),
331	>	SynchronousQueueTest.suite(),
332	>	SystemTest.suite(),
333	>	ThreadLocalTest.suite(),
334	>	ThreadPoolExecutorTest.suite(),
335	>	ThreadPoolExecutorSubclassTest.suite(),
336	>	ThreadTest.suite(),
337	>	TimeUnitTest.suite(),
338	>	TreeMapTest.suite(),
339	>	TreeSetTest.suite(),
340	>	TreeSubMapTest.suite(),
341	>	TreeSubSetTest.suite());
342	>
343	>	// Java8+ test classes
344	>	if (atLeastJava8()) {
345	>	String[] java8TestClassNames = {
346	>	"Atomic8Test",
347	>	"CompletableFutureTest",
348	>	"ConcurrentHashMap8Test",
349	>	"CountedCompleterTest",
350	>	"DoubleAccumulatorTest",
351	>	"DoubleAdderTest",
352	>	"ForkJoinPool8Test",
353	>	"ForkJoinTask8Test",
354	>	"LongAccumulatorTest",
355	>	"LongAdderTest",
356	>	"SplittableRandomTest",
357	>	"StampedLockTest",
358	>	"ThreadLocalRandom8Test",
359	>	};
360	>	addNamedTestClasses(suite, java8TestClassNames);
361	>	}
362	>
363	>	// Java9+ test classes
364	>	if (atLeastJava9()) {
365	>	String[] java9TestClassNames = {
366	>	"ThreadPoolExecutor9Test",
367	>	};
368	>	addNamedTestClasses(suite, java9TestClassNames);
369	>	}
370
371		return suite;
372		}
373
374	+	// Delays for timing-dependent tests, in milliseconds.
375
376		public static long SHORT_DELAY_MS;
377		public static long SMALL_DELAY_MS;
378		public static long MEDIUM_DELAY_MS;
379		public static long LONG_DELAY_MS;
380
200	–
381		/**
382		* Returns the shortest timed delay. This could
383		* be reimplemented to use for example a Property.
#	Line 206 | Line 386 | public class JSR166TestCase extends Test
386		return 50;
387		}
388
209	–
389		/**
390		* Sets delays as multiples of SHORT_DELAY.
391		*/
#	Line 214 | Line 393 | public class JSR166TestCase extends Test
393		SHORT_DELAY_MS = getShortDelay();
394		SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
395		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
396	<	LONG_DELAY_MS   = SHORT_DELAY_MS * 50;
396	>	LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
397	>	}
398	>
399	>	/**
400	>	* Returns a timeout in milliseconds to be used in tests that
401	>	* verify that operations block or time out.
402	>	*/
403	>	long timeoutMillis() {
404	>	return SHORT_DELAY_MS / 4;
405	>	}
406	>
407	>	/**
408	>	* Returns a new Date instance representing a time delayMillis
409	>	* milliseconds in the future.
410	>	*/
411	>	Date delayedDate(long delayMillis) {
412	>	return new Date(System.currentTimeMillis() + delayMillis);
413		}
414
415		/**
#	Line 238 | Line 433 | public class JSR166TestCase extends Test
433		}
434
435		/**
436	+	* Extra checks that get done for all test cases.
437	+	*
438		* Triggers test case failure if any thread assertions have failed,
439		* by rethrowing, in the test harness thread, any exception recorded
440		* earlier by threadRecordFailure.
441	+	*
442	+	* Triggers test case failure if interrupt status is set in the main thread.
443		*/
444		public void tearDown() throws Exception {
445	<	Throwable t = threadFailure.get();
445	>	Throwable t = threadFailure.getAndSet(null);
446		if (t != null) {
447		if (t instanceof Error)
448		throw (Error) t;
#	Line 251 | Line 450 | public class JSR166TestCase extends Test
450		throw (RuntimeException) t;
451		else if (t instanceof Exception)
452		throw (Exception) t;
453	<	else
454	<	throw new AssertionError(t);
453	>	else {
454	>	AssertionFailedError afe =
455	>	new AssertionFailedError(t.toString());
456	>	afe.initCause(t);
457	>	throw afe;
458	>	}
459	>	}
460	>
461	>	if (Thread.interrupted())
462	>	throw new AssertionFailedError("interrupt status set in main thread");
463	>
464	>	checkForkJoinPoolThreadLeaks();
465	>	}
466	>
467	>	/**
468	>	* Find missing try { ... } finally { joinPool(e); }
469	>	*/
470	>	void checkForkJoinPoolThreadLeaks() throws InterruptedException {
471	>	Thread[] survivors = new Thread[5];
472	>	int count = Thread.enumerate(survivors);
473	>	for (int i = 0; i < count; i++) {
474	>	Thread thread = survivors[i];
475	>	String name = thread.getName();
476	>	if (name.startsWith("ForkJoinPool-")) {
477	>	// give thread some time to terminate
478	>	thread.join(LONG_DELAY_MS);
479	>	if (!thread.isAlive()) continue;
480	>	thread.stop();
481	>	throw new AssertionFailedError
482	>	(String.format("Found leaked ForkJoinPool thread test=%s thread=%s%n",
483	>	toString(), name));
484	>	}
485		}
486		}
487
488		/**
489		* Just like fail(reason), but additionally recording (using
490	<	* threadRecordFailure) any AssertionError thrown, so that the current
491	<	* testcase will fail.
490	>	* threadRecordFailure) any AssertionFailedError thrown, so that
491	>	* the current testcase will fail.
492		*/
493		public void threadFail(String reason) {
494		try {
495		fail(reason);
496	<	} catch (Throwable t) {
496	>	} catch (AssertionFailedError t) {
497		threadRecordFailure(t);
498		fail(reason);
499		}
#	Line 272 | Line 501 | public class JSR166TestCase extends Test
501
502		/**
503		* Just like assertTrue(b), but additionally recording (using
504	<	* threadRecordFailure) any AssertionError thrown, so that the current
505	<	* testcase will fail.
504	>	* threadRecordFailure) any AssertionFailedError thrown, so that
505	>	* the current testcase will fail.
506		*/
507		public void threadAssertTrue(boolean b) {
508		try {
509		assertTrue(b);
510	<	} catch (AssertionError t) {
510	>	} catch (AssertionFailedError t) {
511		threadRecordFailure(t);
512		throw t;
513		}
#	Line 286 | Line 515 | public class JSR166TestCase extends Test
515
516		/**
517		* Just like assertFalse(b), but additionally recording (using
518	<	* threadRecordFailure) any AssertionError thrown, so that the
519	<	* current testcase will fail.
518	>	* threadRecordFailure) any AssertionFailedError thrown, so that
519	>	* the current testcase will fail.
520		*/
521		public void threadAssertFalse(boolean b) {
522		try {
523		assertFalse(b);
524	<	} catch (AssertionError t) {
524	>	} catch (AssertionFailedError t) {
525		threadRecordFailure(t);
526		throw t;
527		}
#	Line 300 | Line 529 | public class JSR166TestCase extends Test
529
530		/**
531		* Just like assertNull(x), but additionally recording (using
532	<	* threadRecordFailure) any AssertionError thrown, so that the
533	<	* current testcase will fail.
532	>	* threadRecordFailure) any AssertionFailedError thrown, so that
533	>	* the current testcase will fail.
534		*/
535		public void threadAssertNull(Object x) {
536		try {
537		assertNull(x);
538	<	} catch (AssertionError t) {
538	>	} catch (AssertionFailedError t) {
539		threadRecordFailure(t);
540		throw t;
541		}
#	Line 314 | Line 543 | public class JSR166TestCase extends Test
543
544		/**
545		* Just like assertEquals(x, y), but additionally recording (using
546	<	* threadRecordFailure) any AssertionError thrown, so that the
547	<	* current testcase will fail.
546	>	* threadRecordFailure) any AssertionFailedError thrown, so that
547	>	* the current testcase will fail.
548		*/
549		public void threadAssertEquals(long x, long y) {
550		try {
551		assertEquals(x, y);
552	<	} catch (AssertionError t) {
552	>	} catch (AssertionFailedError t) {
553		threadRecordFailure(t);
554		throw t;
555		}
#	Line 328 | Line 557 | public class JSR166TestCase extends Test
557
558		/**
559		* Just like assertEquals(x, y), but additionally recording (using
560	<	* threadRecordFailure) any AssertionError thrown, so that the
561	<	* current testcase will fail.
560	>	* threadRecordFailure) any AssertionFailedError thrown, so that
561	>	* the current testcase will fail.
562		*/
563		public void threadAssertEquals(Object x, Object y) {
564		try {
565		assertEquals(x, y);
566	<	} catch (AssertionError t) {
566	>	} catch (AssertionFailedError t) {
567		threadRecordFailure(t);
568		throw t;
569	+	} catch (Throwable t) {
570	+	threadUnexpectedException(t);
571		}
572		}
573
574		/**
575		* Just like assertSame(x, y), but additionally recording (using
576	<	* threadRecordFailure) any AssertionError thrown, so that the
577	<	* current testcase will fail.
576	>	* threadRecordFailure) any AssertionFailedError thrown, so that
577	>	* the current testcase will fail.
578		*/
579		public void threadAssertSame(Object x, Object y) {
580		try {
581		assertSame(x, y);
582	<	} catch (AssertionError t) {
582	>	} catch (AssertionFailedError t) {
583		threadRecordFailure(t);
584		throw t;
585		}
#	Line 369 | Line 600 | public class JSR166TestCase extends Test
600		}
601
602		/**
603	<	* Calls threadFail with message "Unexpected exception" + ex.
603	>	* Records the given exception using {@link #threadRecordFailure},
604	>	* then rethrows the exception, wrapping it in an
605	>	* AssertionFailedError if necessary.
606		*/
607		public void threadUnexpectedException(Throwable t) {
608		threadRecordFailure(t);
609		t.printStackTrace();
377	–	// Rethrow, wrapping in an AssertionError if necessary
610		if (t instanceof RuntimeException)
611		throw (RuntimeException) t;
612		else if (t instanceof Error)
613		throw (Error) t;
614		else {
615	<	AssertionError ae = new AssertionError("unexpected exception: " + t);
616	<	t.initCause(t);
617	<	throw ae;
618	<	}
615	>	AssertionFailedError afe =
616	>	new AssertionFailedError("unexpected exception: " + t);
617	>	afe.initCause(t);
618	>	throw afe;
619	>	}
620	>	}
621	>
622	>	/**
623	>	* Delays, via Thread.sleep, for the given millisecond delay, but
624	>	* if the sleep is shorter than specified, may re-sleep or yield
625	>	* until time elapses.
626	>	*/
627	>	static void delay(long millis) throws InterruptedException {
628	>	long startTime = System.nanoTime();
629	>	long ns = millis * 1000 * 1000;
630	>	for (;;) {
631	>	if (millis > 0L)
632	>	Thread.sleep(millis);
633	>	else // too short to sleep
634	>	Thread.yield();
635	>	long d = ns - (System.nanoTime() - startTime);
636	>	if (d > 0L)
637	>	millis = d / (1000 * 1000);
638	>	else
639	>	break;
640	>	}
641		}
642
643		/**
644		* Waits out termination of a thread pool or fails doing so.
645		*/
646	<	public void joinPool(ExecutorService exec) {
646	>	void joinPool(ExecutorService exec) {
647		try {
648		exec.shutdown();
649	<	assertTrue(exec.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
649	>	if (!exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS))
650	>	fail("ExecutorService " + exec +
651	>	" did not terminate in a timely manner");
652		} catch (SecurityException ok) {
653		// Allowed in case test doesn't have privs
654		} catch (InterruptedException ie) {
#	Line 400 | Line 656 | public class JSR166TestCase extends Test
656		}
657		}
658
659	+	/**
660	+	* A debugging tool to print all stack traces, as jstack does.
661	+	*/
662	+	static void printAllStackTraces() {
663	+	for (ThreadInfo info :
664	+	ManagementFactory.getThreadMXBean()
665	+	.dumpAllThreads(true, true))
666	+	System.err.print(info);
667	+	}
668	+
669	+	/**
670	+	* Checks that thread does not terminate within the default
671	+	* millisecond delay of {@code timeoutMillis()}.
672	+	*/
673	+	void assertThreadStaysAlive(Thread thread) {
674	+	assertThreadStaysAlive(thread, timeoutMillis());
675	+	}
676	+
677	+	/**
678	+	* Checks that thread does not terminate within the given millisecond delay.
679	+	*/
680	+	void assertThreadStaysAlive(Thread thread, long millis) {
681	+	try {
682	+	// No need to optimize the failing case via Thread.join.
683	+	delay(millis);
684	+	assertTrue(thread.isAlive());
685	+	} catch (InterruptedException ie) {
686	+	fail("Unexpected InterruptedException");
687	+	}
688	+	}
689	+
690	+	/**
691	+	* Checks that the threads do not terminate within the default
692	+	* millisecond delay of {@code timeoutMillis()}.
693	+	*/
694	+	void assertThreadsStayAlive(Thread... threads) {
695	+	assertThreadsStayAlive(timeoutMillis(), threads);
696	+	}
697	+
698	+	/**
699	+	* Checks that the threads do not terminate within the given millisecond delay.
700	+	*/
701	+	void assertThreadsStayAlive(long millis, Thread... threads) {
702	+	try {
703	+	// No need to optimize the failing case via Thread.join.
704	+	delay(millis);
705	+	for (Thread thread : threads)
706	+	assertTrue(thread.isAlive());
707	+	} catch (InterruptedException ie) {
708	+	fail("Unexpected InterruptedException");
709	+	}
710	+	}
711	+
712	+	/**
713	+	* Checks that future.get times out, with the default timeout of
714	+	* {@code timeoutMillis()}.
715	+	*/
716	+	void assertFutureTimesOut(Future future) {
717	+	assertFutureTimesOut(future, timeoutMillis());
718	+	}
719	+
720	+	/**
721	+	* Checks that future.get times out, with the given millisecond timeout.
722	+	*/
723	+	void assertFutureTimesOut(Future future, long timeoutMillis) {
724	+	long startTime = System.nanoTime();
725	+	try {
726	+	future.get(timeoutMillis, MILLISECONDS);
727	+	shouldThrow();
728	+	} catch (TimeoutException success) {
729	+	} catch (Exception e) {
730	+	threadUnexpectedException(e);
731	+	} finally { future.cancel(true); }
732	+	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
733	+	}
734
735		/**
736		* Fails with message "should throw exception".
#	Line 416 | Line 747 | public class JSR166TestCase extends Test
747		}
748
749		/**
419	–	* Fails with message "Unexpected exception: " + ex.
420	–	*/
421	–	public void unexpectedException(Throwable ex) {
422	–	ex.printStackTrace();
423	–	fail("Unexpected exception: " + ex);
424	–	}
425	–
426	–
427	–	/**
750		* The number of elements to place in collections, arrays, etc.
751		*/
752		public static final int SIZE = 20;
#	Line 449 | Line 771 | public class JSR166TestCase extends Test
771		public static final Integer m6  = new Integer(-6);
772		public static final Integer m10 = new Integer(-10);
773
452	–
774		/**
775		* Runs Runnable r with a security policy that permits precisely
776		* the specified permissions.  If there is no current security
#	Line 461 | Line 782 | public class JSR166TestCase extends Test
782		SecurityManager sm = System.getSecurityManager();
783		if (sm == null) {
784		r.run();
785	+	}
786	+	runWithSecurityManagerWithPermissions(r, permissions);
787	+	}
788	+
789	+	/**
790	+	* Runs Runnable r with a security policy that permits precisely
791	+	* the specified permissions.  If there is no current security
792	+	* manager, a temporary one is set for the duration of the
793	+	* Runnable.  We require that any security manager permit
794	+	* getPolicy/setPolicy.
795	+	*/
796	+	public void runWithSecurityManagerWithPermissions(Runnable r,
797	+	Permission... permissions) {
798	+	SecurityManager sm = System.getSecurityManager();
799	+	if (sm == null) {
800		Policy savedPolicy = Policy.getPolicy();
801		try {
802		Policy.setPolicy(permissivePolicy());
803		System.setSecurityManager(new SecurityManager());
804	<	runWithPermissions(r, permissions);
804	>	runWithSecurityManagerWithPermissions(r, permissions);
805		} finally {
806		System.setSecurityManager(null);
807		Policy.setPolicy(savedPolicy);
#	Line 513 | Line 849 | public class JSR166TestCase extends Test
849		return perms.implies(p);
850		}
851		public void refresh() {}
852	+	public String toString() {
853	+	List<Permission> ps = new ArrayList<Permission>();
854	+	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
855	+	ps.add(e.nextElement());
856	+	return "AdjustablePolicy with permissions " + ps;
857	+	}
858		}
859
860		/**
#	Line 535 | Line 877 | public class JSR166TestCase extends Test
877		}
878
879		/**
880	<	* Sleep until the timeout has elapsed, or interrupted.
881	<	* Does <em>NOT</em> throw InterruptedException.
880	>	* Sleeps until the given time has elapsed.
881	>	* Throws AssertionFailedError if interrupted.
882		*/
883	<	void sleepTillInterrupted(long timeoutMillis) {
883	>	void sleep(long millis) {
884		try {
885	<	Thread.sleep(timeoutMillis);
886	<	} catch (InterruptedException wakeup) {}
885	>	delay(millis);
886	>	} catch (InterruptedException ie) {
887	>	AssertionFailedError afe =
888	>	new AssertionFailedError("Unexpected InterruptedException");
889	>	afe.initCause(ie);
890	>	throw afe;
891	>	}
892	>	}
893	>
894	>	/**
895	>	* Spin-waits up to the specified number of milliseconds for the given
896	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
897	>	*/
898	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
899	>	long startTime = System.nanoTime();
900	>	for (;;) {
901	>	Thread.State s = thread.getState();
902	>	if (s == Thread.State.BLOCKED ||
903	>	s == Thread.State.WAITING ||
904	>	s == Thread.State.TIMED_WAITING)
905	>	return;
906	>	else if (s == Thread.State.TERMINATED)
907	>	fail("Unexpected thread termination");
908	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
909	>	threadAssertTrue(thread.isAlive());
910	>	return;
911	>	}
912	>	Thread.yield();
913	>	}
914		}
915
916		/**
917	<	* Returns a new started Thread running the given runnable.
917	>	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
918	>	* state: BLOCKED, WAITING, or TIMED_WAITING.
919	>	*/
920	>	void waitForThreadToEnterWaitState(Thread thread) {
921	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
922	>	}
923	>
924	>	/**
925	>	* Returns the number of milliseconds since time given by
926	>	* startNanoTime, which must have been previously returned from a
927	>	* call to {@link System.nanoTime()}.
928	>	*/
929	>	static long millisElapsedSince(long startNanoTime) {
930	>	return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
931	>	}
932	>
933	>	//     void assertTerminatesPromptly(long timeoutMillis, Runnable r) {
934	>	//         long startTime = System.nanoTime();
935	>	//         try {
936	>	//             r.run();
937	>	//         } catch (Throwable fail) { threadUnexpectedException(fail); }
938	>	//         if (millisElapsedSince(startTime) > timeoutMillis/2)
939	>	//             throw new AssertionFailedError("did not return promptly");
940	>	//     }
941	>
942	>	//     void assertTerminatesPromptly(Runnable r) {
943	>	//         assertTerminatesPromptly(LONG_DELAY_MS/2, r);
944	>	//     }
945	>
946	>	/**
947	>	* Checks that timed f.get() returns the expected value, and does not
948	>	* wait for the timeout to elapse before returning.
949	>	*/
950	>	<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
951	>	long startTime = System.nanoTime();
952	>	try {
953	>	assertEquals(expectedValue, f.get(timeoutMillis, MILLISECONDS));
954	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
955	>	if (millisElapsedSince(startTime) > timeoutMillis/2)
956	>	throw new AssertionFailedError("timed get did not return promptly");
957	>	}
958	>
959	>	<T> void checkTimedGet(Future<T> f, T expectedValue) {
960	>	checkTimedGet(f, expectedValue, LONG_DELAY_MS);
961	>	}
962	>
963	>	/**
964	>	* Returns a new started daemon Thread running the given runnable.
965		*/
966		Thread newStartedThread(Runnable runnable) {
967		Thread t = new Thread(runnable);
968	+	t.setDaemon(true);
969		t.start();
970		return t;
971		}
972
973	+	/**
974	+	* Waits for the specified time (in milliseconds) for the thread
975	+	* to terminate (using {@link Thread#join(long)}), else interrupts
976	+	* the thread (in the hope that it may terminate later) and fails.
977	+	*/
978	+	void awaitTermination(Thread t, long timeoutMillis) {
979	+	try {
980	+	t.join(timeoutMillis);
981	+	} catch (InterruptedException ie) {
982	+	threadUnexpectedException(ie);
983	+	} finally {
984	+	if (t.getState() != Thread.State.TERMINATED) {
985	+	t.interrupt();
986	+	fail("Test timed out");
987	+	}
988	+	}
989	+	}
990	+
991	+	/**
992	+	* Waits for LONG_DELAY_MS milliseconds for the thread to
993	+	* terminate (using {@link Thread#join(long)}), else interrupts
994	+	* the thread (in the hope that it may terminate later) and fails.
995	+	*/
996	+	void awaitTermination(Thread t) {
997	+	awaitTermination(t, LONG_DELAY_MS);
998	+	}
999	+
1000		// Some convenient Runnable classes
1001
1002		public abstract class CheckedRunnable implements Runnable {
#	Line 615 | Line 1059 | public class JSR166TestCase extends Test
1059		realRun();
1060		threadShouldThrow("InterruptedException");
1061		} catch (InterruptedException success) {
1062	+	threadAssertFalse(Thread.interrupted());
1063		} catch (Throwable t) {
1064		threadUnexpectedException(t);
1065		}
#	Line 644 | Line 1089 | public class JSR166TestCase extends Test
1089		threadShouldThrow("InterruptedException");
1090		return result;
1091		} catch (InterruptedException success) {
1092	+	threadAssertFalse(Thread.interrupted());
1093		} catch (Throwable t) {
1094		threadUnexpectedException(t);
1095		}
#	Line 667 | Line 1113 | public class JSR166TestCase extends Test
1113
1114		public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
1115		return new CheckedCallable<String>() {
1116	<	public String realCall() {
1116	>	protected String realCall() {
1117		try {
1118		latch.await();
1119		} catch (InterruptedException quittingTime) {}
#	Line 675 | Line 1121 | public class JSR166TestCase extends Test
1121		}};
1122		}
1123
1124	+	public Runnable awaiter(final CountDownLatch latch) {
1125	+	return new CheckedRunnable() {
1126	+	public void realRun() throws InterruptedException {
1127	+	await(latch);
1128	+	}};
1129	+	}
1130	+
1131	+	public void await(CountDownLatch latch) {
1132	+	try {
1133	+	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1134	+	} catch (Throwable t) {
1135	+	threadUnexpectedException(t);
1136	+	}
1137	+	}
1138	+
1139	+	public void await(Semaphore semaphore) {
1140	+	try {
1141	+	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1142	+	} catch (Throwable t) {
1143	+	threadUnexpectedException(t);
1144	+	}
1145	+	}
1146	+
1147	+	//     /**
1148	+	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1149	+	//      */
1150	+	//     public void await(AtomicBoolean flag) {
1151	+	//         await(flag, LONG_DELAY_MS);
1152	+	//     }
1153	+
1154	+	//     /**
1155	+	//      * Spin-waits up to the specified timeout until flag becomes true.
1156	+	//      */
1157	+	//     public void await(AtomicBoolean flag, long timeoutMillis) {
1158	+	//         long startTime = System.nanoTime();
1159	+	//         while (!flag.get()) {
1160	+	//             if (millisElapsedSince(startTime) > timeoutMillis)
1161	+	//                 throw new AssertionFailedError("timed out");
1162	+	//             Thread.yield();
1163	+	//         }
1164	+	//     }
1165	+
1166		public static class NPETask implements Callable<String> {
1167		public String call() { throw new NullPointerException(); }
1168		}
#	Line 685 | Line 1173 | public class JSR166TestCase extends Test
1173
1174		public class ShortRunnable extends CheckedRunnable {
1175		protected void realRun() throws Throwable {
1176	<	Thread.sleep(SHORT_DELAY_MS);
1176	>	delay(SHORT_DELAY_MS);
1177		}
1178		}
1179
1180		public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1181		protected void realRun() throws InterruptedException {
1182	<	Thread.sleep(SHORT_DELAY_MS);
1182	>	delay(SHORT_DELAY_MS);
1183		}
1184		}
1185
1186		public class SmallRunnable extends CheckedRunnable {
1187		protected void realRun() throws Throwable {
1188	<	Thread.sleep(SMALL_DELAY_MS);
1188	>	delay(SMALL_DELAY_MS);
1189		}
1190		}
1191
1192		public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1193		protected void realRun() {
1194		try {
1195	<	Thread.sleep(SMALL_DELAY_MS);
1195	>	delay(SMALL_DELAY_MS);
1196		} catch (InterruptedException ok) {}
1197		}
1198		}
1199
1200		public class SmallCallable extends CheckedCallable {
1201		protected Object realCall() throws InterruptedException {
1202	<	Thread.sleep(SMALL_DELAY_MS);
1202	>	delay(SMALL_DELAY_MS);
1203		return Boolean.TRUE;
1204		}
1205		}
1206
719	–	public class SmallInterruptedRunnable extends CheckedInterruptedRunnable {
720	–	protected void realRun() throws InterruptedException {
721	–	Thread.sleep(SMALL_DELAY_MS);
722	–	}
723	–	}
724	–
1207		public class MediumRunnable extends CheckedRunnable {
1208		protected void realRun() throws Throwable {
1209	<	Thread.sleep(MEDIUM_DELAY_MS);
1209	>	delay(MEDIUM_DELAY_MS);
1210		}
1211		}
1212
1213		public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1214		protected void realRun() throws InterruptedException {
1215	<	Thread.sleep(MEDIUM_DELAY_MS);
1215	>	delay(MEDIUM_DELAY_MS);
1216		}
1217		}
1218
1219	+	public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1220	+	return new CheckedRunnable() {
1221	+	protected void realRun() {
1222	+	try {
1223	+	delay(timeoutMillis);
1224	+	} catch (InterruptedException ok) {}
1225	+	}};
1226	+	}
1227	+
1228		public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1229		protected void realRun() {
1230		try {
1231	<	Thread.sleep(MEDIUM_DELAY_MS);
1231	>	delay(MEDIUM_DELAY_MS);
1232		} catch (InterruptedException ok) {}
1233		}
1234		}
#	Line 745 | Line 1236 | public class JSR166TestCase extends Test
1236		public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1237		protected void realRun() {
1238		try {
1239	<	Thread.sleep(LONG_DELAY_MS);
1239	>	delay(LONG_DELAY_MS);
1240		} catch (InterruptedException ok) {}
1241		}
1242		}
#	Line 759 | Line 1250 | public class JSR166TestCase extends Test
1250		}
1251		}
1252
1253	+	public interface TrackedRunnable extends Runnable {
1254	+	boolean isDone();
1255	+	}
1256	+
1257	+	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1258	+	return new TrackedRunnable() {
1259	+	private volatile boolean done = false;
1260	+	public boolean isDone() { return done; }
1261	+	public void run() {
1262	+	try {
1263	+	delay(timeoutMillis);
1264	+	done = true;
1265	+	} catch (InterruptedException ok) {}
1266	+	}
1267	+	};
1268	+	}
1269	+
1270		public static class TrackedShortRunnable implements Runnable {
1271		public volatile boolean done = false;
1272		public void run() {
1273		try {
1274	<	Thread.sleep(SMALL_DELAY_MS);
1274	>	delay(SHORT_DELAY_MS);
1275	>	done = true;
1276	>	} catch (InterruptedException ok) {}
1277	>	}
1278	>	}
1279	>
1280	>	public static class TrackedSmallRunnable implements Runnable {
1281	>	public volatile boolean done = false;
1282	>	public void run() {
1283	>	try {
1284	>	delay(SMALL_DELAY_MS);
1285		done = true;
1286		} catch (InterruptedException ok) {}
1287		}
#	Line 773 | Line 1291 | public class JSR166TestCase extends Test
1291		public volatile boolean done = false;
1292		public void run() {
1293		try {
1294	<	Thread.sleep(MEDIUM_DELAY_MS);
1294	>	delay(MEDIUM_DELAY_MS);
1295		done = true;
1296		} catch (InterruptedException ok) {}
1297		}
#	Line 783 | Line 1301 | public class JSR166TestCase extends Test
1301		public volatile boolean done = false;
1302		public void run() {
1303		try {
1304	<	Thread.sleep(LONG_DELAY_MS);
1304	>	delay(LONG_DELAY_MS);
1305		done = true;
1306		} catch (InterruptedException ok) {}
1307		}
#	Line 800 | Line 1318 | public class JSR166TestCase extends Test
1318		public volatile boolean done = false;
1319		public Object call() {
1320		try {
1321	<	Thread.sleep(SMALL_DELAY_MS);
1321	>	delay(SMALL_DELAY_MS);
1322		done = true;
1323		} catch (InterruptedException ok) {}
1324		return Boolean.TRUE;
#	Line 813 | Line 1331 | public class JSR166TestCase extends Test
1331		public abstract class CheckedRecursiveAction extends RecursiveAction {
1332		protected abstract void realCompute() throws Throwable;
1333
1334	<	public final void compute() {
1334	>	@Override protected final void compute() {
1335		try {
1336		realCompute();
1337		} catch (Throwable t) {
#	Line 828 | Line 1346 | public class JSR166TestCase extends Test
1346		public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1347		protected abstract T realCompute() throws Throwable;
1348
1349	<	public final T compute() {
1349	>	@Override protected final T compute() {
1350		try {
1351		return realCompute();
1352		} catch (Throwable t) {
#	Line 846 | Line 1364 | public class JSR166TestCase extends Test
1364		ThreadPoolExecutor executor) {}
1365		}
1366
1367	+	/**
1368	+	* A CyclicBarrier that uses timed await and fails with
1369	+	* AssertionFailedErrors instead of throwing checked exceptions.
1370	+	*/
1371	+	public class CheckedBarrier extends CyclicBarrier {
1372	+	public CheckedBarrier(int parties) { super(parties); }
1373	+
1374	+	public int await() {
1375	+	try {
1376	+	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1377	+	} catch (TimeoutException e) {
1378	+	throw new AssertionFailedError("timed out");
1379	+	} catch (Exception e) {
1380	+	AssertionFailedError afe =
1381	+	new AssertionFailedError("Unexpected exception: " + e);
1382	+	afe.initCause(e);
1383	+	throw afe;
1384	+	}
1385	+	}
1386	+	}
1387	+
1388	+	void checkEmpty(BlockingQueue q) {
1389	+	try {
1390	+	assertTrue(q.isEmpty());
1391	+	assertEquals(0, q.size());
1392	+	assertNull(q.peek());
1393	+	assertNull(q.poll());
1394	+	assertNull(q.poll(0, MILLISECONDS));
1395	+	assertEquals(q.toString(), "[]");
1396	+	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1397	+	assertFalse(q.iterator().hasNext());
1398	+	try {
1399	+	q.element();
1400	+	shouldThrow();
1401	+	} catch (NoSuchElementException success) {}
1402	+	try {
1403	+	q.iterator().next();
1404	+	shouldThrow();
1405	+	} catch (NoSuchElementException success) {}
1406	+	try {
1407	+	q.remove();
1408	+	shouldThrow();
1409	+	} catch (NoSuchElementException success) {}
1410	+	} catch (InterruptedException ie) {
1411	+	threadUnexpectedException(ie);
1412	+	}
1413	+	}
1414	+
1415	+	void assertSerialEquals(Object x, Object y) {
1416	+	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1417	+	}
1418	+
1419	+	void assertNotSerialEquals(Object x, Object y) {
1420	+	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1421	+	}
1422	+
1423	+	byte[] serialBytes(Object o) {
1424	+	try {
1425	+	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1426	+	ObjectOutputStream oos = new ObjectOutputStream(bos);
1427	+	oos.writeObject(o);
1428	+	oos.flush();
1429	+	oos.close();
1430	+	return bos.toByteArray();
1431	+	} catch (Throwable t) {
1432	+	threadUnexpectedException(t);
1433	+	return new byte[0];
1434	+	}
1435	+	}
1436	+
1437	+	@SuppressWarnings("unchecked")
1438	+	<T> T serialClone(T o) {
1439	+	try {
1440	+	ObjectInputStream ois = new ObjectInputStream
1441	+	(new ByteArrayInputStream(serialBytes(o)));
1442	+	T clone = (T) ois.readObject();
1443	+	assertSame(o.getClass(), clone.getClass());
1444	+	return clone;
1445	+	} catch (Throwable t) {
1446	+	threadUnexpectedException(t);
1447	+	return null;
1448	+	}
1449	+	}
1450	+
1451	+	public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1452	+	Runnable... throwingActions) {
1453	+	for (Runnable throwingAction : throwingActions) {
1454	+	boolean threw = false;
1455	+	try { throwingAction.run(); }
1456	+	catch (Throwable t) {
1457	+	threw = true;
1458	+	if (!expectedExceptionClass.isInstance(t)) {
1459	+	AssertionFailedError afe =
1460	+	new AssertionFailedError
1461	+	("Expected " + expectedExceptionClass.getName() +
1462	+	", got " + t.getClass().getName());
1463	+	afe.initCause(t);
1464	+	threadUnexpectedException(afe);
1465	+	}
1466	+	}
1467	+	if (!threw)
1468	+	shouldThrow(expectedExceptionClass.getName());
1469	+	}
1470	+	}
1471		}

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