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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.56 by jsr166, Sun Oct 3 23:59:05 2010 UTC vs.
Revision 1.115 by jsr166, Wed May 14 21:06:38 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.io.ByteArrayInputStream;
11	+	import java.io.ByteArrayOutputStream;
12	+	import java.io.ObjectInputStream;
13	+	import java.io.ObjectOutputStream;
14	+	import java.lang.management.ManagementFactory;
15	+	import java.lang.management.ThreadInfo;
16	+	import java.lang.reflect.Method;
17	+	import java.util.ArrayList;
18	+	import java.util.Arrays;
19	+	import java.util.Date;
20	+	import java.util.Enumeration;
21	+	import java.util.List;
22	+	import java.util.NoSuchElementException;
23		import java.util.PropertyPermission;
24		import java.util.concurrent.*;
25	+	import java.util.concurrent.atomic.AtomicBoolean;
26		import java.util.concurrent.atomic.AtomicReference;
27		import static java.util.concurrent.TimeUnit.MILLISECONDS;
28	+	import static java.util.concurrent.TimeUnit.NANOSECONDS;
29	+	import java.util.regex.Pattern;
30		import java.security.CodeSource;
31		import java.security.Permission;
32		import java.security.PermissionCollection;
#	Line 60 | Line 76 | import java.security.SecurityPermission;
76		*
77		* </ol>
78		*
79	<	* <p> <b>Other notes</b>
79	>	* <p><b>Other notes</b>
80		* <ul>
81		*
82		* <li> Usually, there is one testcase method per JSR166 method
#	Line 96 | Line 112 | public class JSR166TestCase extends Test
112		private static final boolean useSecurityManager =
113		Boolean.getBoolean("jsr166.useSecurityManager");
114
115	+	protected static final boolean expensiveTests =
116	+	Boolean.getBoolean("jsr166.expensiveTests");
117	+
118	+	/**
119	+	* If true, report on stdout all "slow" tests, that is, ones that
120	+	* take more than profileThreshold milliseconds to execute.
121	+	*/
122	+	private static final boolean profileTests =
123	+	Boolean.getBoolean("jsr166.profileTests");
124	+
125	+	/**
126	+	* The number of milliseconds that tests are permitted for
127	+	* execution without being reported, when profileTests is set.
128	+	*/
129	+	private static final long profileThreshold =
130	+	Long.getLong("jsr166.profileThreshold", 100);
131	+
132	+	/**
133	+	* The number of repetitions per test (for tickling rare bugs).
134	+	*/
135	+	private static final int runsPerTest =
136	+	Integer.getInteger("jsr166.runsPerTest", 1);
137	+
138	+	/**
139	+	* A filter for tests to run, matching strings of the form
140	+	* methodName(className), e.g. "testInvokeAll5(ForkJoinPoolTest)"
141	+	* Usefully combined with jsr166.runsPerTest.
142	+	*/
143	+	private static final Pattern methodFilter = methodFilter();
144	+
145	+	private static Pattern methodFilter() {
146	+	String regex = System.getProperty("jsr166.methodFilter");
147	+	return (regex == null) ? null : Pattern.compile(regex);
148	+	}
149	+
150	+	protected void runTest() throws Throwable {
151	+	if (methodFilter == null
152	+	|| methodFilter.matcher(toString()).find()) {
153	+	for (int i = 0; i < runsPerTest; i++) {
154	+	if (profileTests)
155	+	runTestProfiled();
156	+	else
157	+	super.runTest();
158	+	}
159	+	}
160	+	}
161	+
162	+	protected void runTestProfiled() throws Throwable {
163	+	long t0 = System.nanoTime();
164	+	try {
165	+	super.runTest();
166	+	} finally {
167	+	long elapsedMillis =
168	+	(System.nanoTime() - t0) / (1000L * 1000L);
169	+	if (elapsedMillis >= profileThreshold)
170	+	System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
171	+	}
172	+	}
173	+
174		/**
175	<	* Runs all JSR166 unit tests using junit.textui.TestRunner
175	>	* Runs all JSR166 unit tests using junit.textui.TestRunner.
176	>	* Optional command line arg provides the number of iterations to
177	>	* repeat running the tests.
178		*/
179		public static void main(String[] args) {
180		if (useSecurityManager) {
#	Line 116 | Line 193 | public class JSR166TestCase extends Test
193		System.exit(0);
194		}
195
196	+	public static TestSuite newTestSuite(Object... suiteOrClasses) {
197	+	TestSuite suite = new TestSuite();
198	+	for (Object suiteOrClass : suiteOrClasses) {
199	+	if (suiteOrClass instanceof TestSuite)
200	+	suite.addTest((TestSuite) suiteOrClass);
201	+	else if (suiteOrClass instanceof Class)
202	+	suite.addTest(new TestSuite((Class<?>) suiteOrClass));
203	+	else
204	+	throw new ClassCastException("not a test suite or class");
205	+	}
206	+	return suite;
207	+	}
208	+
209	+	public static void addNamedTestClasses(TestSuite suite,
210	+	String... testClassNames) {
211	+	for (String testClassName : testClassNames) {
212	+	try {
213	+	Class<?> testClass = Class.forName(testClassName);
214	+	Method m = testClass.getDeclaredMethod("suite",
215	+	new Class<?>[0]);
216	+	suite.addTest(newTestSuite((Test)m.invoke(null)));
217	+	} catch (Exception e) {
218	+	throw new Error("Missing test class", e);
219	+	}
220	+	}
221	+	}
222	+
223	+	public static final double JAVA_CLASS_VERSION;
224	+	public static final String JAVA_SPECIFICATION_VERSION;
225	+	static {
226	+	try {
227	+	JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
228	+	new java.security.PrivilegedAction<Double>() {
229	+	public Double run() {
230	+	return Double.valueOf(System.getProperty("java.class.version"));}});
231	+	JAVA_SPECIFICATION_VERSION = java.security.AccessController.doPrivileged(
232	+	new java.security.PrivilegedAction<String>() {
233	+	public String run() {
234	+	return System.getProperty("java.specification.version");}});
235	+	} catch (Throwable t) {
236	+	throw new Error(t);
237	+	}
238	+	}
239	+
240	+	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
241	+	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
242	+	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
243	+	public static boolean atLeastJava9() {
244	+	// As of 2014-05, java9 still uses 52.0 class file version
245	+	return JAVA_SPECIFICATION_VERSION.startsWith("1.9");
246	+	}
247	+
248		/**
249	<	* Collects all JSR166 unit tests as one suite
249	>	* Collects all JSR166 unit tests as one suite.
250		*/
251		public static Test suite() {
252	<	TestSuite suite = new TestSuite("JSR166 Unit Tests");
253	<
254	<	suite.addTest(ForkJoinPoolTest.suite());
255	<	suite.addTest(ForkJoinTaskTest.suite());
256	<	suite.addTest(RecursiveActionTest.suite());
257	<	suite.addTest(RecursiveTaskTest.suite());
258	<	suite.addTest(LinkedTransferQueueTest.suite());
259	<	suite.addTest(PhaserTest.suite());
260	<	suite.addTest(ThreadLocalRandomTest.suite());
261	<	suite.addTest(AbstractExecutorServiceTest.suite());
262	<	suite.addTest(AbstractQueueTest.suite());
263	<	suite.addTest(AbstractQueuedSynchronizerTest.suite());
264	<	suite.addTest(AbstractQueuedLongSynchronizerTest.suite());
265	<	suite.addTest(ArrayBlockingQueueTest.suite());
266	<	suite.addTest(ArrayDequeTest.suite());
267	<	suite.addTest(AtomicBooleanTest.suite());
268	<	suite.addTest(AtomicIntegerArrayTest.suite());
269	<	suite.addTest(AtomicIntegerFieldUpdaterTest.suite());
270	<	suite.addTest(AtomicIntegerTest.suite());
271	<	suite.addTest(AtomicLongArrayTest.suite());
272	<	suite.addTest(AtomicLongFieldUpdaterTest.suite());
273	<	suite.addTest(AtomicLongTest.suite());
274	<	suite.addTest(AtomicMarkableReferenceTest.suite());
275	<	suite.addTest(AtomicReferenceArrayTest.suite());
276	<	suite.addTest(AtomicReferenceFieldUpdaterTest.suite());
277	<	suite.addTest(AtomicReferenceTest.suite());
278	<	suite.addTest(AtomicStampedReferenceTest.suite());
279	<	suite.addTest(ConcurrentHashMapTest.suite());
280	<	suite.addTest(ConcurrentLinkedDequeTest.suite());
281	<	suite.addTest(ConcurrentLinkedQueueTest.suite());
282	<	suite.addTest(ConcurrentSkipListMapTest.suite());
283	<	suite.addTest(ConcurrentSkipListSubMapTest.suite());
284	<	suite.addTest(ConcurrentSkipListSetTest.suite());
285	<	suite.addTest(ConcurrentSkipListSubSetTest.suite());
286	<	suite.addTest(CopyOnWriteArrayListTest.suite());
287	<	suite.addTest(CopyOnWriteArraySetTest.suite());
288	<	suite.addTest(CountDownLatchTest.suite());
289	<	suite.addTest(CyclicBarrierTest.suite());
290	<	suite.addTest(DelayQueueTest.suite());
291	<	suite.addTest(EntryTest.suite());
292	<	suite.addTest(ExchangerTest.suite());
293	<	suite.addTest(ExecutorsTest.suite());
294	<	suite.addTest(ExecutorCompletionServiceTest.suite());
295	<	suite.addTest(FutureTaskTest.suite());
296	<	suite.addTest(LinkedBlockingDequeTest.suite());
297	<	suite.addTest(LinkedBlockingQueueTest.suite());
298	<	suite.addTest(LinkedListTest.suite());
299	<	suite.addTest(LockSupportTest.suite());
300	<	suite.addTest(PriorityBlockingQueueTest.suite());
301	<	suite.addTest(PriorityQueueTest.suite());
302	<	suite.addTest(ReentrantLockTest.suite());
303	<	suite.addTest(ReentrantReadWriteLockTest.suite());
304	<	suite.addTest(ScheduledExecutorTest.suite());
305	<	suite.addTest(ScheduledExecutorSubclassTest.suite());
306	<	suite.addTest(SemaphoreTest.suite());
307	<	suite.addTest(SynchronousQueueTest.suite());
308	<	suite.addTest(SystemTest.suite());
309	<	suite.addTest(ThreadLocalTest.suite());
310	<	suite.addTest(ThreadPoolExecutorTest.suite());
311	<	suite.addTest(ThreadPoolExecutorSubclassTest.suite());
312	<	suite.addTest(ThreadTest.suite());
313	<	suite.addTest(TimeUnitTest.suite());
314	<	suite.addTest(TreeMapTest.suite());
315	<	suite.addTest(TreeSetTest.suite());
316	<	suite.addTest(TreeSubMapTest.suite());
317	<	suite.addTest(TreeSubSetTest.suite());
252	>	// Java7+ test classes
253	>	TestSuite suite = newTestSuite(
254	>	ForkJoinPoolTest.suite(),
255	>	ForkJoinTaskTest.suite(),
256	>	RecursiveActionTest.suite(),
257	>	RecursiveTaskTest.suite(),
258	>	LinkedTransferQueueTest.suite(),
259	>	PhaserTest.suite(),
260	>	ThreadLocalRandomTest.suite(),
261	>	AbstractExecutorServiceTest.suite(),
262	>	AbstractQueueTest.suite(),
263	>	AbstractQueuedSynchronizerTest.suite(),
264	>	AbstractQueuedLongSynchronizerTest.suite(),
265	>	ArrayBlockingQueueTest.suite(),
266	>	ArrayDequeTest.suite(),
267	>	AtomicBooleanTest.suite(),
268	>	AtomicIntegerArrayTest.suite(),
269	>	AtomicIntegerFieldUpdaterTest.suite(),
270	>	AtomicIntegerTest.suite(),
271	>	AtomicLongArrayTest.suite(),
272	>	AtomicLongFieldUpdaterTest.suite(),
273	>	AtomicLongTest.suite(),
274	>	AtomicMarkableReferenceTest.suite(),
275	>	AtomicReferenceArrayTest.suite(),
276	>	AtomicReferenceFieldUpdaterTest.suite(),
277	>	AtomicReferenceTest.suite(),
278	>	AtomicStampedReferenceTest.suite(),
279	>	ConcurrentHashMapTest.suite(),
280	>	ConcurrentLinkedDequeTest.suite(),
281	>	ConcurrentLinkedQueueTest.suite(),
282	>	ConcurrentSkipListMapTest.suite(),
283	>	ConcurrentSkipListSubMapTest.suite(),
284	>	ConcurrentSkipListSetTest.suite(),
285	>	ConcurrentSkipListSubSetTest.suite(),
286	>	CopyOnWriteArrayListTest.suite(),
287	>	CopyOnWriteArraySetTest.suite(),
288	>	CountDownLatchTest.suite(),
289	>	CyclicBarrierTest.suite(),
290	>	DelayQueueTest.suite(),
291	>	EntryTest.suite(),
292	>	ExchangerTest.suite(),
293	>	ExecutorsTest.suite(),
294	>	ExecutorCompletionServiceTest.suite(),
295	>	FutureTaskTest.suite(),
296	>	LinkedBlockingDequeTest.suite(),
297	>	LinkedBlockingQueueTest.suite(),
298	>	LinkedListTest.suite(),
299	>	LockSupportTest.suite(),
300	>	PriorityBlockingQueueTest.suite(),
301	>	PriorityQueueTest.suite(),
302	>	ReentrantLockTest.suite(),
303	>	ReentrantReadWriteLockTest.suite(),
304	>	ScheduledExecutorTest.suite(),
305	>	ScheduledExecutorSubclassTest.suite(),
306	>	SemaphoreTest.suite(),
307	>	SynchronousQueueTest.suite(),
308	>	SystemTest.suite(),
309	>	ThreadLocalTest.suite(),
310	>	ThreadPoolExecutorTest.suite(),
311	>	ThreadPoolExecutorSubclassTest.suite(),
312	>	ThreadTest.suite(),
313	>	TimeUnitTest.suite(),
314	>	TreeMapTest.suite(),
315	>	TreeSetTest.suite(),
316	>	TreeSubMapTest.suite(),
317	>	TreeSubSetTest.suite());
318	>
319	>	// Java8+ test classes
320	>	if (atLeastJava8()) {
321	>	String[] java8TestClassNames = {
322	>	"Atomic8Test",
323	>	"CompletableFutureTest",
324	>	"ConcurrentHashMap8Test",
325	>	"CountedCompleterTest",
326	>	"DoubleAccumulatorTest",
327	>	"DoubleAdderTest",
328	>	"ForkJoinPool8Test",
329	>	"ForkJoinTask8Test",
330	>	"LongAccumulatorTest",
331	>	"LongAdderTest",
332	>	"SplittableRandomTest",
333	>	"StampedLockTest",
334	>	"ThreadLocalRandom8Test",
335	>	};
336	>	addNamedTestClasses(suite, java8TestClassNames);
337	>	}
338	>
339	>	// Java9+ test classes
340	>	if (atLeastJava9()) {
341	>	String[] java9TestClassNames = {
342	>	"ThreadPoolExecutor9Test",
343	>	};
344	>	addNamedTestClasses(suite, java9TestClassNames);
345	>	}
346
347		return suite;
348		}
349
350	+	// Delays for timing-dependent tests, in milliseconds.
351
352		public static long SHORT_DELAY_MS;
353		public static long SMALL_DELAY_MS;
354		public static long MEDIUM_DELAY_MS;
355		public static long LONG_DELAY_MS;
356
199	–
357		/**
358		* Returns the shortest timed delay. This could
359		* be reimplemented to use for example a Property.
#	Line 205 | Line 362 | public class JSR166TestCase extends Test
362		return 50;
363		}
364
208	–
365		/**
366		* Sets delays as multiples of SHORT_DELAY.
367		*/
#	Line 213 | Line 369 | public class JSR166TestCase extends Test
369		SHORT_DELAY_MS = getShortDelay();
370		SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
371		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
372	<	LONG_DELAY_MS   = SHORT_DELAY_MS * 50;
372	>	LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
373	>	}
374	>
375	>	/**
376	>	* Returns a timeout in milliseconds to be used in tests that
377	>	* verify that operations block or time out.
378	>	*/
379	>	long timeoutMillis() {
380	>	return SHORT_DELAY_MS / 4;
381	>	}
382	>
383	>	/**
384	>	* Returns a new Date instance representing a time delayMillis
385	>	* milliseconds in the future.
386	>	*/
387	>	Date delayedDate(long delayMillis) {
388	>	return new Date(System.currentTimeMillis() + delayMillis);
389		}
390
391		/**
#	Line 237 | Line 409 | public class JSR166TestCase extends Test
409		}
410
411		/**
412	+	* Extra checks that get done for all test cases.
413	+	*
414		* Triggers test case failure if any thread assertions have failed,
415		* by rethrowing, in the test harness thread, any exception recorded
416		* earlier by threadRecordFailure.
417	+	*
418	+	* Triggers test case failure if interrupt status is set in the main thread.
419		*/
420		public void tearDown() throws Exception {
421	<	Throwable t = threadFailure.get();
421	>	Throwable t = threadFailure.getAndSet(null);
422		if (t != null) {
423		if (t instanceof Error)
424		throw (Error) t;
#	Line 250 | Line 426 | public class JSR166TestCase extends Test
426		throw (RuntimeException) t;
427		else if (t instanceof Exception)
428		throw (Exception) t;
429	<	else
430	<	throw new AssertionError(t);
429	>	else {
430	>	AssertionFailedError afe =
431	>	new AssertionFailedError(t.toString());
432	>	afe.initCause(t);
433	>	throw afe;
434	>	}
435	>	}
436	>
437	>	if (Thread.interrupted())
438	>	throw new AssertionFailedError("interrupt status set in main thread");
439	>
440	>	checkForkJoinPoolThreadLeaks();
441	>	}
442	>
443	>	/**
444	>	* Find missing try { ... } finally { joinPool(e); }
445	>	*/
446	>	void checkForkJoinPoolThreadLeaks() throws InterruptedException {
447	>	Thread[] survivors = new Thread[5];
448	>	int count = Thread.enumerate(survivors);
449	>	for (int i = 0; i < count; i++) {
450	>	Thread thread = survivors[i];
451	>	String name = thread.getName();
452	>	if (name.startsWith("ForkJoinPool-")) {
453	>	// give thread some time to terminate
454	>	thread.join(LONG_DELAY_MS);
455	>	if (!thread.isAlive()) continue;
456	>	thread.stop();
457	>	throw new AssertionFailedError
458	>	(String.format("Found leaked ForkJoinPool thread test=%s thread=%s%n",
459	>	toString(), name));
460	>	}
461		}
462		}
463
464		/**
465		* Just like fail(reason), but additionally recording (using
466	<	* threadRecordFailure) any AssertionError thrown, so that the current
467	<	* testcase will fail.
466	>	* threadRecordFailure) any AssertionFailedError thrown, so that
467	>	* the current testcase will fail.
468		*/
469		public void threadFail(String reason) {
470		try {
471		fail(reason);
472	<	} catch (Throwable t) {
472	>	} catch (AssertionFailedError t) {
473		threadRecordFailure(t);
474		fail(reason);
475		}
#	Line 271 | Line 477 | public class JSR166TestCase extends Test
477
478		/**
479		* Just like assertTrue(b), but additionally recording (using
480	<	* threadRecordFailure) any AssertionError thrown, so that the current
481	<	* testcase will fail.
480	>	* threadRecordFailure) any AssertionFailedError thrown, so that
481	>	* the current testcase will fail.
482		*/
483		public void threadAssertTrue(boolean b) {
484		try {
485		assertTrue(b);
486	<	} catch (AssertionError t) {
486	>	} catch (AssertionFailedError t) {
487		threadRecordFailure(t);
488		throw t;
489		}
#	Line 285 | Line 491 | public class JSR166TestCase extends Test
491
492		/**
493		* Just like assertFalse(b), but additionally recording (using
494	<	* threadRecordFailure) any AssertionError thrown, so that the
495	<	* current testcase will fail.
494	>	* threadRecordFailure) any AssertionFailedError thrown, so that
495	>	* the current testcase will fail.
496		*/
497		public void threadAssertFalse(boolean b) {
498		try {
499		assertFalse(b);
500	<	} catch (AssertionError t) {
500	>	} catch (AssertionFailedError t) {
501		threadRecordFailure(t);
502		throw t;
503		}
#	Line 299 | Line 505 | public class JSR166TestCase extends Test
505
506		/**
507		* Just like assertNull(x), but additionally recording (using
508	<	* threadRecordFailure) any AssertionError thrown, so that the
509	<	* current testcase will fail.
508	>	* threadRecordFailure) any AssertionFailedError thrown, so that
509	>	* the current testcase will fail.
510		*/
511		public void threadAssertNull(Object x) {
512		try {
513		assertNull(x);
514	<	} catch (AssertionError t) {
514	>	} catch (AssertionFailedError t) {
515		threadRecordFailure(t);
516		throw t;
517		}
#	Line 313 | Line 519 | public class JSR166TestCase extends Test
519
520		/**
521		* Just like assertEquals(x, y), but additionally recording (using
522	<	* threadRecordFailure) any AssertionError thrown, so that the
523	<	* current testcase will fail.
522	>	* threadRecordFailure) any AssertionFailedError thrown, so that
523	>	* the current testcase will fail.
524		*/
525		public void threadAssertEquals(long x, long y) {
526		try {
527		assertEquals(x, y);
528	<	} catch (AssertionError t) {
528	>	} catch (AssertionFailedError t) {
529		threadRecordFailure(t);
530		throw t;
531		}
#	Line 327 | Line 533 | public class JSR166TestCase extends Test
533
534		/**
535		* Just like assertEquals(x, y), but additionally recording (using
536	<	* threadRecordFailure) any AssertionError thrown, so that the
537	<	* current testcase will fail.
536	>	* threadRecordFailure) any AssertionFailedError thrown, so that
537	>	* the current testcase will fail.
538		*/
539		public void threadAssertEquals(Object x, Object y) {
540		try {
541		assertEquals(x, y);
542	<	} catch (AssertionError t) {
542	>	} catch (AssertionFailedError t) {
543		threadRecordFailure(t);
544		throw t;
545	+	} catch (Throwable t) {
546	+	threadUnexpectedException(t);
547		}
548		}
549
550		/**
551		* Just like assertSame(x, y), but additionally recording (using
552	<	* threadRecordFailure) any AssertionError thrown, so that the
553	<	* current testcase will fail.
552	>	* threadRecordFailure) any AssertionFailedError thrown, so that
553	>	* the current testcase will fail.
554		*/
555		public void threadAssertSame(Object x, Object y) {
556		try {
557		assertSame(x, y);
558	<	} catch (AssertionError t) {
558	>	} catch (AssertionFailedError t) {
559		threadRecordFailure(t);
560		throw t;
561		}
#	Line 368 | Line 576 | public class JSR166TestCase extends Test
576		}
577
578		/**
579	<	* Calls threadFail with message "Unexpected exception" + ex.
579	>	* Records the given exception using {@link #threadRecordFailure},
580	>	* then rethrows the exception, wrapping it in an
581	>	* AssertionFailedError if necessary.
582		*/
583		public void threadUnexpectedException(Throwable t) {
584		threadRecordFailure(t);
585		t.printStackTrace();
376	–	// Rethrow, wrapping in an AssertionError if necessary
586		if (t instanceof RuntimeException)
587		throw (RuntimeException) t;
588		else if (t instanceof Error)
589		throw (Error) t;
590		else {
591	<	AssertionError ae = new AssertionError("unexpected exception: " + t);
592	<	t.initCause(t);
593	<	throw ae;
591	>	AssertionFailedError afe =
592	>	new AssertionFailedError("unexpected exception: " + t);
593	>	afe.initCause(t);
594	>	throw afe;
595	>	}
596	>	}
597	>
598	>	/**
599	>	* Delays, via Thread.sleep, for the given millisecond delay, but
600	>	* if the sleep is shorter than specified, may re-sleep or yield
601	>	* until time elapses.
602	>	*/
603	>	static void delay(long millis) throws InterruptedException {
604	>	long startTime = System.nanoTime();
605	>	long ns = millis * 1000 * 1000;
606	>	for (;;) {
607	>	if (millis > 0L)
608	>	Thread.sleep(millis);
609	>	else // too short to sleep
610	>	Thread.yield();
611	>	long d = ns - (System.nanoTime() - startTime);
612	>	if (d > 0L)
613	>	millis = d / (1000 * 1000);
614	>	else
615	>	break;
616		}
617		}
618
619		/**
620		* Waits out termination of a thread pool or fails doing so.
621		*/
622	<	public void joinPool(ExecutorService exec) {
622	>	void joinPool(ExecutorService exec) {
623		try {
624		exec.shutdown();
625		assertTrue("ExecutorService did not terminate in a timely manner",
626	<	exec.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
626	>	exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS));
627		} catch (SecurityException ok) {
628		// Allowed in case test doesn't have privs
629		} catch (InterruptedException ie) {
#	Line 400 | Line 631 | public class JSR166TestCase extends Test
631		}
632		}
633
634	+	/**
635	+	* A debugging tool to print all stack traces, as jstack does.
636	+	*/
637	+	static void printAllStackTraces() {
638	+	for (ThreadInfo info :
639	+	ManagementFactory.getThreadMXBean()
640	+	.dumpAllThreads(true, true))
641	+	System.err.print(info);
642	+	}
643	+
644	+	/**
645	+	* Checks that thread does not terminate within the default
646	+	* millisecond delay of {@code timeoutMillis()}.
647	+	*/
648	+	void assertThreadStaysAlive(Thread thread) {
649	+	assertThreadStaysAlive(thread, timeoutMillis());
650	+	}
651	+
652	+	/**
653	+	* Checks that thread does not terminate within the given millisecond delay.
654	+	*/
655	+	void assertThreadStaysAlive(Thread thread, long millis) {
656	+	try {
657	+	// No need to optimize the failing case via Thread.join.
658	+	delay(millis);
659	+	assertTrue(thread.isAlive());
660	+	} catch (InterruptedException ie) {
661	+	fail("Unexpected InterruptedException");
662	+	}
663	+	}
664	+
665	+	/**
666	+	* Checks that the threads do not terminate within the default
667	+	* millisecond delay of {@code timeoutMillis()}.
668	+	*/
669	+	void assertThreadsStayAlive(Thread... threads) {
670	+	assertThreadsStayAlive(timeoutMillis(), threads);
671	+	}
672	+
673	+	/**
674	+	* Checks that the threads do not terminate within the given millisecond delay.
675	+	*/
676	+	void assertThreadsStayAlive(long millis, Thread... threads) {
677	+	try {
678	+	// No need to optimize the failing case via Thread.join.
679	+	delay(millis);
680	+	for (Thread thread : threads)
681	+	assertTrue(thread.isAlive());
682	+	} catch (InterruptedException ie) {
683	+	fail("Unexpected InterruptedException");
684	+	}
685	+	}
686	+
687	+	/**
688	+	* Checks that future.get times out, with the default timeout of
689	+	* {@code timeoutMillis()}.
690	+	*/
691	+	void assertFutureTimesOut(Future future) {
692	+	assertFutureTimesOut(future, timeoutMillis());
693	+	}
694	+
695	+	/**
696	+	* Checks that future.get times out, with the given millisecond timeout.
697	+	*/
698	+	void assertFutureTimesOut(Future future, long timeoutMillis) {
699	+	long startTime = System.nanoTime();
700	+	try {
701	+	future.get(timeoutMillis, MILLISECONDS);
702	+	shouldThrow();
703	+	} catch (TimeoutException success) {
704	+	} catch (Exception e) {
705	+	threadUnexpectedException(e);
706	+	} finally { future.cancel(true); }
707	+	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
708	+	}
709
710		/**
711		* Fails with message "should throw exception".
#	Line 416 | Line 722 | public class JSR166TestCase extends Test
722		}
723
724		/**
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	–	/**
725		* The number of elements to place in collections, arrays, etc.
726		*/
727		public static final int SIZE = 20;
#	Line 449 | Line 746 | public class JSR166TestCase extends Test
746		public static final Integer m6  = new Integer(-6);
747		public static final Integer m10 = new Integer(-10);
748
452	–
749		/**
750		* Runs Runnable r with a security policy that permits precisely
751		* the specified permissions.  If there is no current security
#	Line 461 | Line 757 | public class JSR166TestCase extends Test
757		SecurityManager sm = System.getSecurityManager();
758		if (sm == null) {
759		r.run();
760	+	}
761	+	runWithSecurityManagerWithPermissions(r, permissions);
762	+	}
763	+
764	+	/**
765	+	* Runs Runnable r with a security policy that permits precisely
766	+	* the specified permissions.  If there is no current security
767	+	* manager, a temporary one is set for the duration of the
768	+	* Runnable.  We require that any security manager permit
769	+	* getPolicy/setPolicy.
770	+	*/
771	+	public void runWithSecurityManagerWithPermissions(Runnable r,
772	+	Permission... permissions) {
773	+	SecurityManager sm = System.getSecurityManager();
774	+	if (sm == null) {
775		Policy savedPolicy = Policy.getPolicy();
776		try {
777		Policy.setPolicy(permissivePolicy());
778		System.setSecurityManager(new SecurityManager());
779	<	runWithPermissions(r, permissions);
779	>	runWithSecurityManagerWithPermissions(r, permissions);
780		} finally {
781		System.setSecurityManager(null);
782		Policy.setPolicy(savedPolicy);
#	Line 513 | Line 824 | public class JSR166TestCase extends Test
824		return perms.implies(p);
825		}
826		public void refresh() {}
827	+	public String toString() {
828	+	List<Permission> ps = new ArrayList<Permission>();
829	+	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
830	+	ps.add(e.nextElement());
831	+	return "AdjustablePolicy with permissions " + ps;
832	+	}
833		}
834
835		/**
#	Line 535 | Line 852 | public class JSR166TestCase extends Test
852		}
853
854		/**
855	<	* Sleep until the timeout has elapsed, or interrupted.
856	<	* Does <em>NOT</em> throw InterruptedException.
855	>	* Sleeps until the given time has elapsed.
856	>	* Throws AssertionFailedError if interrupted.
857		*/
858	<	void sleepTillInterrupted(long timeoutMillis) {
858	>	void sleep(long millis) {
859		try {
860	<	Thread.sleep(timeoutMillis);
861	<	} catch (InterruptedException wakeup) {}
860	>	delay(millis);
861	>	} catch (InterruptedException ie) {
862	>	AssertionFailedError afe =
863	>	new AssertionFailedError("Unexpected InterruptedException");
864	>	afe.initCause(ie);
865	>	throw afe;
866	>	}
867	>	}
868	>
869	>	/**
870	>	* Spin-waits up to the specified number of milliseconds for the given
871	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
872	>	*/
873	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
874	>	long startTime = System.nanoTime();
875	>	for (;;) {
876	>	Thread.State s = thread.getState();
877	>	if (s == Thread.State.BLOCKED ||
878	>	s == Thread.State.WAITING ||
879	>	s == Thread.State.TIMED_WAITING)
880	>	return;
881	>	else if (s == Thread.State.TERMINATED)
882	>	fail("Unexpected thread termination");
883	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
884	>	threadAssertTrue(thread.isAlive());
885	>	return;
886	>	}
887	>	Thread.yield();
888	>	}
889	>	}
890	>
891	>	/**
892	>	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
893	>	* state: BLOCKED, WAITING, or TIMED_WAITING.
894	>	*/
895	>	void waitForThreadToEnterWaitState(Thread thread) {
896	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
897	>	}
898	>
899	>	/**
900	>	* Returns the number of milliseconds since time given by
901	>	* startNanoTime, which must have been previously returned from a
902	>	* call to {@link System.nanoTime()}.
903	>	*/
904	>	long millisElapsedSince(long startNanoTime) {
905	>	return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
906		}
907
908		/**
909	<	* Returns a new started Thread running the given runnable.
909	>	* Returns a new started daemon Thread running the given runnable.
910		*/
911		Thread newStartedThread(Runnable runnable) {
912		Thread t = new Thread(runnable);
913	+	t.setDaemon(true);
914		t.start();
915		return t;
916		}
917
918	+	/**
919	+	* Waits for the specified time (in milliseconds) for the thread
920	+	* to terminate (using {@link Thread#join(long)}), else interrupts
921	+	* the thread (in the hope that it may terminate later) and fails.
922	+	*/
923	+	void awaitTermination(Thread t, long timeoutMillis) {
924	+	try {
925	+	t.join(timeoutMillis);
926	+	} catch (InterruptedException ie) {
927	+	threadUnexpectedException(ie);
928	+	} finally {
929	+	if (t.getState() != Thread.State.TERMINATED) {
930	+	t.interrupt();
931	+	fail("Test timed out");
932	+	}
933	+	}
934	+	}
935	+
936	+	/**
937	+	* Waits for LONG_DELAY_MS milliseconds for the thread to
938	+	* terminate (using {@link Thread#join(long)}), else interrupts
939	+	* the thread (in the hope that it may terminate later) and fails.
940	+	*/
941	+	void awaitTermination(Thread t) {
942	+	awaitTermination(t, LONG_DELAY_MS);
943	+	}
944	+
945		// Some convenient Runnable classes
946
947		public abstract class CheckedRunnable implements Runnable {
#	Line 615 | Line 1004 | public class JSR166TestCase extends Test
1004		realRun();
1005		threadShouldThrow("InterruptedException");
1006		} catch (InterruptedException success) {
1007	+	threadAssertFalse(Thread.interrupted());
1008		} catch (Throwable t) {
1009		threadUnexpectedException(t);
1010		}
#	Line 644 | Line 1034 | public class JSR166TestCase extends Test
1034		threadShouldThrow("InterruptedException");
1035		return result;
1036		} catch (InterruptedException success) {
1037	+	threadAssertFalse(Thread.interrupted());
1038		} catch (Throwable t) {
1039		threadUnexpectedException(t);
1040		}
#	Line 667 | Line 1058 | public class JSR166TestCase extends Test
1058
1059		public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
1060		return new CheckedCallable<String>() {
1061	<	public String realCall() {
1061	>	protected String realCall() {
1062		try {
1063		latch.await();
1064		} catch (InterruptedException quittingTime) {}
#	Line 675 | Line 1066 | public class JSR166TestCase extends Test
1066		}};
1067		}
1068
1069	+	public Runnable awaiter(final CountDownLatch latch) {
1070	+	return new CheckedRunnable() {
1071	+	public void realRun() throws InterruptedException {
1072	+	await(latch);
1073	+	}};
1074	+	}
1075	+
1076	+	public void await(CountDownLatch latch) {
1077	+	try {
1078	+	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1079	+	} catch (Throwable t) {
1080	+	threadUnexpectedException(t);
1081	+	}
1082	+	}
1083	+
1084	+	public void await(Semaphore semaphore) {
1085	+	try {
1086	+	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1087	+	} catch (Throwable t) {
1088	+	threadUnexpectedException(t);
1089	+	}
1090	+	}
1091	+
1092	+	//     /**
1093	+	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1094	+	//      */
1095	+	//     public void await(AtomicBoolean flag) {
1096	+	//         await(flag, LONG_DELAY_MS);
1097	+	//     }
1098	+
1099	+	//     /**
1100	+	//      * Spin-waits up to the specified timeout until flag becomes true.
1101	+	//      */
1102	+	//     public void await(AtomicBoolean flag, long timeoutMillis) {
1103	+	//         long startTime = System.nanoTime();
1104	+	//         while (!flag.get()) {
1105	+	//             if (millisElapsedSince(startTime) > timeoutMillis)
1106	+	//                 throw new AssertionFailedError("timed out");
1107	+	//             Thread.yield();
1108	+	//         }
1109	+	//     }
1110	+
1111		public static class NPETask implements Callable<String> {
1112		public String call() { throw new NullPointerException(); }
1113		}
#	Line 685 | Line 1118 | public class JSR166TestCase extends Test
1118
1119		public class ShortRunnable extends CheckedRunnable {
1120		protected void realRun() throws Throwable {
1121	<	Thread.sleep(SHORT_DELAY_MS);
1121	>	delay(SHORT_DELAY_MS);
1122		}
1123		}
1124
1125		public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1126		protected void realRun() throws InterruptedException {
1127	<	Thread.sleep(SHORT_DELAY_MS);
1127	>	delay(SHORT_DELAY_MS);
1128		}
1129		}
1130
1131		public class SmallRunnable extends CheckedRunnable {
1132		protected void realRun() throws Throwable {
1133	<	Thread.sleep(SMALL_DELAY_MS);
1133	>	delay(SMALL_DELAY_MS);
1134		}
1135		}
1136
1137		public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1138		protected void realRun() {
1139		try {
1140	<	Thread.sleep(SMALL_DELAY_MS);
1140	>	delay(SMALL_DELAY_MS);
1141		} catch (InterruptedException ok) {}
1142		}
1143		}
1144
1145		public class SmallCallable extends CheckedCallable {
1146		protected Object realCall() throws InterruptedException {
1147	<	Thread.sleep(SMALL_DELAY_MS);
1147	>	delay(SMALL_DELAY_MS);
1148		return Boolean.TRUE;
1149		}
1150		}
1151
719	–	public class SmallInterruptedRunnable extends CheckedInterruptedRunnable {
720	–	protected void realRun() throws InterruptedException {
721	–	Thread.sleep(SMALL_DELAY_MS);
722	–	}
723	–	}
724	–
1152		public class MediumRunnable extends CheckedRunnable {
1153		protected void realRun() throws Throwable {
1154	<	Thread.sleep(MEDIUM_DELAY_MS);
1154	>	delay(MEDIUM_DELAY_MS);
1155		}
1156		}
1157
1158		public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1159		protected void realRun() throws InterruptedException {
1160	<	Thread.sleep(MEDIUM_DELAY_MS);
1160	>	delay(MEDIUM_DELAY_MS);
1161		}
1162		}
1163
1164	+	public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1165	+	return new CheckedRunnable() {
1166	+	protected void realRun() {
1167	+	try {
1168	+	delay(timeoutMillis);
1169	+	} catch (InterruptedException ok) {}
1170	+	}};
1171	+	}
1172	+
1173		public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1174		protected void realRun() {
1175		try {
1176	<	Thread.sleep(MEDIUM_DELAY_MS);
1176	>	delay(MEDIUM_DELAY_MS);
1177		} catch (InterruptedException ok) {}
1178		}
1179		}
#	Line 745 | Line 1181 | public class JSR166TestCase extends Test
1181		public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1182		protected void realRun() {
1183		try {
1184	<	Thread.sleep(LONG_DELAY_MS);
1184	>	delay(LONG_DELAY_MS);
1185		} catch (InterruptedException ok) {}
1186		}
1187		}
#	Line 759 | Line 1195 | public class JSR166TestCase extends Test
1195		}
1196		}
1197
1198	+	public interface TrackedRunnable extends Runnable {
1199	+	boolean isDone();
1200	+	}
1201	+
1202	+	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1203	+	return new TrackedRunnable() {
1204	+	private volatile boolean done = false;
1205	+	public boolean isDone() { return done; }
1206	+	public void run() {
1207	+	try {
1208	+	delay(timeoutMillis);
1209	+	done = true;
1210	+	} catch (InterruptedException ok) {}
1211	+	}
1212	+	};
1213	+	}
1214	+
1215		public static class TrackedShortRunnable implements Runnable {
1216		public volatile boolean done = false;
1217		public void run() {
1218		try {
1219	<	Thread.sleep(SMALL_DELAY_MS);
1219	>	delay(SHORT_DELAY_MS);
1220	>	done = true;
1221	>	} catch (InterruptedException ok) {}
1222	>	}
1223	>	}
1224	>
1225	>	public static class TrackedSmallRunnable implements Runnable {
1226	>	public volatile boolean done = false;
1227	>	public void run() {
1228	>	try {
1229	>	delay(SMALL_DELAY_MS);
1230		done = true;
1231		} catch (InterruptedException ok) {}
1232		}
#	Line 773 | Line 1236 | public class JSR166TestCase extends Test
1236		public volatile boolean done = false;
1237		public void run() {
1238		try {
1239	<	Thread.sleep(MEDIUM_DELAY_MS);
1239	>	delay(MEDIUM_DELAY_MS);
1240		done = true;
1241		} catch (InterruptedException ok) {}
1242		}
#	Line 783 | Line 1246 | public class JSR166TestCase extends Test
1246		public volatile boolean done = false;
1247		public void run() {
1248		try {
1249	<	Thread.sleep(LONG_DELAY_MS);
1249	>	delay(LONG_DELAY_MS);
1250		done = true;
1251		} catch (InterruptedException ok) {}
1252		}
#	Line 800 | Line 1263 | public class JSR166TestCase extends Test
1263		public volatile boolean done = false;
1264		public Object call() {
1265		try {
1266	<	Thread.sleep(SMALL_DELAY_MS);
1266	>	delay(SMALL_DELAY_MS);
1267		done = true;
1268		} catch (InterruptedException ok) {}
1269		return Boolean.TRUE;
#	Line 813 | Line 1276 | public class JSR166TestCase extends Test
1276		public abstract class CheckedRecursiveAction extends RecursiveAction {
1277		protected abstract void realCompute() throws Throwable;
1278
1279	<	public final void compute() {
1279	>	@Override protected final void compute() {
1280		try {
1281		realCompute();
1282		} catch (Throwable t) {
#	Line 828 | Line 1291 | public class JSR166TestCase extends Test
1291		public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1292		protected abstract T realCompute() throws Throwable;
1293
1294	<	public final T compute() {
1294	>	@Override protected final T compute() {
1295		try {
1296		return realCompute();
1297		} catch (Throwable t) {
#	Line 846 | Line 1309 | public class JSR166TestCase extends Test
1309		ThreadPoolExecutor executor) {}
1310		}
1311
1312	+	/**
1313	+	* A CyclicBarrier that uses timed await and fails with
1314	+	* AssertionFailedErrors instead of throwing checked exceptions.
1315	+	*/
1316	+	public class CheckedBarrier extends CyclicBarrier {
1317	+	public CheckedBarrier(int parties) { super(parties); }
1318	+
1319	+	public int await() {
1320	+	try {
1321	+	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1322	+	} catch (TimeoutException e) {
1323	+	throw new AssertionFailedError("timed out");
1324	+	} catch (Exception e) {
1325	+	AssertionFailedError afe =
1326	+	new AssertionFailedError("Unexpected exception: " + e);
1327	+	afe.initCause(e);
1328	+	throw afe;
1329	+	}
1330	+	}
1331	+	}
1332	+
1333	+	void checkEmpty(BlockingQueue q) {
1334	+	try {
1335	+	assertTrue(q.isEmpty());
1336	+	assertEquals(0, q.size());
1337	+	assertNull(q.peek());
1338	+	assertNull(q.poll());
1339	+	assertNull(q.poll(0, MILLISECONDS));
1340	+	assertEquals(q.toString(), "[]");
1341	+	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1342	+	assertFalse(q.iterator().hasNext());
1343	+	try {
1344	+	q.element();
1345	+	shouldThrow();
1346	+	} catch (NoSuchElementException success) {}
1347	+	try {
1348	+	q.iterator().next();
1349	+	shouldThrow();
1350	+	} catch (NoSuchElementException success) {}
1351	+	try {
1352	+	q.remove();
1353	+	shouldThrow();
1354	+	} catch (NoSuchElementException success) {}
1355	+	} catch (InterruptedException ie) {
1356	+	threadUnexpectedException(ie);
1357	+	}
1358	+	}
1359	+
1360	+	void assertSerialEquals(Object x, Object y) {
1361	+	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1362	+	}
1363	+
1364	+	void assertNotSerialEquals(Object x, Object y) {
1365	+	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1366	+	}
1367	+
1368	+	byte[] serialBytes(Object o) {
1369	+	try {
1370	+	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1371	+	ObjectOutputStream oos = new ObjectOutputStream(bos);
1372	+	oos.writeObject(o);
1373	+	oos.flush();
1374	+	oos.close();
1375	+	return bos.toByteArray();
1376	+	} catch (Throwable t) {
1377	+	threadUnexpectedException(t);
1378	+	return new byte[0];
1379	+	}
1380	+	}
1381	+
1382	+	@SuppressWarnings("unchecked")
1383	+	<T> T serialClone(T o) {
1384	+	try {
1385	+	ObjectInputStream ois = new ObjectInputStream
1386	+	(new ByteArrayInputStream(serialBytes(o)));
1387	+	T clone = (T) ois.readObject();
1388	+	assertSame(o.getClass(), clone.getClass());
1389	+	return clone;
1390	+	} catch (Throwable t) {
1391	+	threadUnexpectedException(t);
1392	+	return null;
1393	+	}
1394	+	}
1395	+
1396	+	public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1397	+	Runnable... throwingActions) {
1398	+	for (Runnable throwingAction : throwingActions) {
1399	+	boolean threw = false;
1400	+	try { throwingAction.run(); }
1401	+	catch (Throwable t) {
1402	+	threw = true;
1403	+	if (!expectedExceptionClass.isInstance(t)) {
1404	+	AssertionFailedError afe =
1405	+	new AssertionFailedError
1406	+	("Expected " + expectedExceptionClass.getName() +
1407	+	", got " + t.getClass().getName());
1408	+	afe.initCause(t);
1409	+	threadUnexpectedException(afe);
1410	+	}
1411	+	}
1412	+	if (!threw)
1413	+	shouldThrow(expectedExceptionClass.getName());
1414	+	}
1415	+	}
1416		}

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