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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.59 by jsr166, Wed Oct 6 02:58:04 2010 UTC vs.
Revision 1.101 by jsr166, Wed Feb 6 16:57:21 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.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.security.CodeSource;
30		import java.security.Permission;
31		import java.security.PermissionCollection;
#	Line 60 | Line 75 | import java.security.SecurityPermission;
75		*
76		* </ol>
77		*
78	<	* <p> <b>Other notes</b>
78	>	* <p><b>Other notes</b>
79		* <ul>
80		*
81		* <li> Usually, there is one testcase method per JSR166 method
#	Line 96 | Line 111 | public class JSR166TestCase extends Test
111		private static final boolean useSecurityManager =
112		Boolean.getBoolean("jsr166.useSecurityManager");
113
114	+	protected static final boolean expensiveTests =
115	+	Boolean.getBoolean("jsr166.expensiveTests");
116	+
117	+	/**
118	+	* If true, report on stdout all "slow" tests, that is, ones that
119	+	* take more than profileThreshold milliseconds to execute.
120	+	*/
121	+	private static final boolean profileTests =
122	+	Boolean.getBoolean("jsr166.profileTests");
123	+
124	+	/**
125	+	* The number of milliseconds that tests are permitted for
126	+	* execution without being reported, when profileTests is set.
127	+	*/
128	+	private static final long profileThreshold =
129	+	Long.getLong("jsr166.profileThreshold", 100);
130	+
131	+	protected void runTest() throws Throwable {
132	+	if (profileTests)
133	+	runTestProfiled();
134	+	else
135	+	super.runTest();
136	+	}
137	+
138	+	protected void runTestProfiled() throws Throwable {
139	+	long t0 = System.nanoTime();
140	+	try {
141	+	super.runTest();
142	+	} finally {
143	+	long elapsedMillis =
144	+	(System.nanoTime() - t0) / (1000L * 1000L);
145	+	if (elapsedMillis >= profileThreshold)
146	+	System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
147	+	}
148	+	}
149	+
150		/**
151	<	* Runs all JSR166 unit tests using junit.textui.TestRunner
151	>	* Runs all JSR166 unit tests using junit.textui.TestRunner.
152	>	* Optional command line arg provides the number of iterations to
153	>	* repeat running the tests.
154		*/
155		public static void main(String[] args) {
156		if (useSecurityManager) {
#	Line 116 | Line 169 | public class JSR166TestCase extends Test
169		System.exit(0);
170		}
171
172	+	public static TestSuite newTestSuite(Object... suiteOrClasses) {
173	+	TestSuite suite = new TestSuite();
174	+	for (Object suiteOrClass : suiteOrClasses) {
175	+	if (suiteOrClass instanceof TestSuite)
176	+	suite.addTest((TestSuite) suiteOrClass);
177	+	else if (suiteOrClass instanceof Class)
178	+	suite.addTest(new TestSuite((Class<?>) suiteOrClass));
179	+	else
180	+	throw new ClassCastException("not a test suite or class");
181	+	}
182	+	return suite;
183	+	}
184	+
185	+	public static void addNamedTestClasses(TestSuite suite,
186	+	String... testClassNames) {
187	+	for (String testClassName : testClassNames) {
188	+	try {
189	+	Class<?> testClass = Class.forName(testClassName);
190	+	Method m = testClass.getDeclaredMethod("suite",
191	+	new Class<?>[0]);
192	+	suite.addTest(newTestSuite((Test)m.invoke(null)));
193	+	} catch (Exception e) {
194	+	throw new Error("Missing test class", e);
195	+	}
196	+	}
197	+	}
198	+
199	+	public static final double JAVA_CLASS_VERSION;
200	+	static {
201	+	try {
202	+	JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
203	+	new java.security.PrivilegedAction<Double>() {
204	+	public Double run() {
205	+	return Double.valueOf(System.getProperty("java.class.version"));}});
206	+	} catch (Throwable t) {
207	+	throw new Error(t);
208	+	}
209	+	}
210	+
211	+	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
212	+	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
213	+	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
214	+
215		/**
216	<	* Collects all JSR166 unit tests as one suite
216	>	* Collects all JSR166 unit tests as one suite.
217		*/
218		public static Test suite() {
219	<	TestSuite suite = new TestSuite("JSR166 Unit Tests");
220	<
221	<	suite.addTest(ForkJoinPoolTest.suite());
222	<	suite.addTest(ForkJoinTaskTest.suite());
223	<	suite.addTest(RecursiveActionTest.suite());
224	<	suite.addTest(RecursiveTaskTest.suite());
225	<	suite.addTest(LinkedTransferQueueTest.suite());
226	<	suite.addTest(PhaserTest.suite());
227	<	suite.addTest(ThreadLocalRandomTest.suite());
228	<	suite.addTest(AbstractExecutorServiceTest.suite());
229	<	suite.addTest(AbstractQueueTest.suite());
230	<	suite.addTest(AbstractQueuedSynchronizerTest.suite());
231	<	suite.addTest(AbstractQueuedLongSynchronizerTest.suite());
232	<	suite.addTest(ArrayBlockingQueueTest.suite());
233	<	suite.addTest(ArrayDequeTest.suite());
234	<	suite.addTest(AtomicBooleanTest.suite());
235	<	suite.addTest(AtomicIntegerArrayTest.suite());
236	<	suite.addTest(AtomicIntegerFieldUpdaterTest.suite());
237	<	suite.addTest(AtomicIntegerTest.suite());
238	<	suite.addTest(AtomicLongArrayTest.suite());
239	<	suite.addTest(AtomicLongFieldUpdaterTest.suite());
240	<	suite.addTest(AtomicLongTest.suite());
241	<	suite.addTest(AtomicMarkableReferenceTest.suite());
242	<	suite.addTest(AtomicReferenceArrayTest.suite());
243	<	suite.addTest(AtomicReferenceFieldUpdaterTest.suite());
244	<	suite.addTest(AtomicReferenceTest.suite());
245	<	suite.addTest(AtomicStampedReferenceTest.suite());
246	<	suite.addTest(ConcurrentHashMapTest.suite());
247	<	suite.addTest(ConcurrentLinkedDequeTest.suite());
248	<	suite.addTest(ConcurrentLinkedQueueTest.suite());
249	<	suite.addTest(ConcurrentSkipListMapTest.suite());
250	<	suite.addTest(ConcurrentSkipListSubMapTest.suite());
251	<	suite.addTest(ConcurrentSkipListSetTest.suite());
252	<	suite.addTest(ConcurrentSkipListSubSetTest.suite());
253	<	suite.addTest(CopyOnWriteArrayListTest.suite());
254	<	suite.addTest(CopyOnWriteArraySetTest.suite());
255	<	suite.addTest(CountDownLatchTest.suite());
256	<	suite.addTest(CyclicBarrierTest.suite());
257	<	suite.addTest(DelayQueueTest.suite());
258	<	suite.addTest(EntryTest.suite());
259	<	suite.addTest(ExchangerTest.suite());
260	<	suite.addTest(ExecutorsTest.suite());
261	<	suite.addTest(ExecutorCompletionServiceTest.suite());
262	<	suite.addTest(FutureTaskTest.suite());
263	<	suite.addTest(LinkedBlockingDequeTest.suite());
264	<	suite.addTest(LinkedBlockingQueueTest.suite());
265	<	suite.addTest(LinkedListTest.suite());
266	<	suite.addTest(LockSupportTest.suite());
267	<	suite.addTest(PriorityBlockingQueueTest.suite());
268	<	suite.addTest(PriorityQueueTest.suite());
269	<	suite.addTest(ReentrantLockTest.suite());
270	<	suite.addTest(ReentrantReadWriteLockTest.suite());
271	<	suite.addTest(ScheduledExecutorTest.suite());
272	<	suite.addTest(ScheduledExecutorSubclassTest.suite());
273	<	suite.addTest(SemaphoreTest.suite());
274	<	suite.addTest(SynchronousQueueTest.suite());
275	<	suite.addTest(SystemTest.suite());
276	<	suite.addTest(ThreadLocalTest.suite());
277	<	suite.addTest(ThreadPoolExecutorTest.suite());
278	<	suite.addTest(ThreadPoolExecutorSubclassTest.suite());
279	<	suite.addTest(ThreadTest.suite());
280	<	suite.addTest(TimeUnitTest.suite());
281	<	suite.addTest(TreeMapTest.suite());
282	<	suite.addTest(TreeSetTest.suite());
283	<	suite.addTest(TreeSubMapTest.suite());
284	<	suite.addTest(TreeSubSetTest.suite());
219	>	// Java7+ test classes
220	>	TestSuite suite = newTestSuite(
221	>	ForkJoinPoolTest.suite(),
222	>	ForkJoinTaskTest.suite(),
223	>	RecursiveActionTest.suite(),
224	>	RecursiveTaskTest.suite(),
225	>	LinkedTransferQueueTest.suite(),
226	>	PhaserTest.suite(),
227	>	ThreadLocalRandomTest.suite(),
228	>	AbstractExecutorServiceTest.suite(),
229	>	AbstractQueueTest.suite(),
230	>	AbstractQueuedSynchronizerTest.suite(),
231	>	AbstractQueuedLongSynchronizerTest.suite(),
232	>	ArrayBlockingQueueTest.suite(),
233	>	ArrayDequeTest.suite(),
234	>	AtomicBooleanTest.suite(),
235	>	AtomicIntegerArrayTest.suite(),
236	>	AtomicIntegerFieldUpdaterTest.suite(),
237	>	AtomicIntegerTest.suite(),
238	>	AtomicLongArrayTest.suite(),
239	>	AtomicLongFieldUpdaterTest.suite(),
240	>	AtomicLongTest.suite(),
241	>	AtomicMarkableReferenceTest.suite(),
242	>	AtomicReferenceArrayTest.suite(),
243	>	AtomicReferenceFieldUpdaterTest.suite(),
244	>	AtomicReferenceTest.suite(),
245	>	AtomicStampedReferenceTest.suite(),
246	>	ConcurrentHashMapTest.suite(),
247	>	ConcurrentLinkedDequeTest.suite(),
248	>	ConcurrentLinkedQueueTest.suite(),
249	>	ConcurrentSkipListMapTest.suite(),
250	>	ConcurrentSkipListSubMapTest.suite(),
251	>	ConcurrentSkipListSetTest.suite(),
252	>	ConcurrentSkipListSubSetTest.suite(),
253	>	CopyOnWriteArrayListTest.suite(),
254	>	CopyOnWriteArraySetTest.suite(),
255	>	CountDownLatchTest.suite(),
256	>	CyclicBarrierTest.suite(),
257	>	DelayQueueTest.suite(),
258	>	EntryTest.suite(),
259	>	ExchangerTest.suite(),
260	>	ExecutorsTest.suite(),
261	>	ExecutorCompletionServiceTest.suite(),
262	>	FutureTaskTest.suite(),
263	>	LinkedBlockingDequeTest.suite(),
264	>	LinkedBlockingQueueTest.suite(),
265	>	LinkedListTest.suite(),
266	>	LockSupportTest.suite(),
267	>	PriorityBlockingQueueTest.suite(),
268	>	PriorityQueueTest.suite(),
269	>	ReentrantLockTest.suite(),
270	>	ReentrantReadWriteLockTest.suite(),
271	>	ScheduledExecutorTest.suite(),
272	>	ScheduledExecutorSubclassTest.suite(),
273	>	SemaphoreTest.suite(),
274	>	SynchronousQueueTest.suite(),
275	>	SystemTest.suite(),
276	>	ThreadLocalTest.suite(),
277	>	ThreadPoolExecutorTest.suite(),
278	>	ThreadPoolExecutorSubclassTest.suite(),
279	>	ThreadTest.suite(),
280	>	TimeUnitTest.suite(),
281	>	TreeMapTest.suite(),
282	>	TreeSetTest.suite(),
283	>	TreeSubMapTest.suite(),
284	>	TreeSubSetTest.suite());
285	>
286	>	// Java8+ test classes
287	>	if (atLeastJava8()) {
288	>	String[] java8TestClassNames = {
289	>	"StampedLockTest",
290	>	"ForkJoinPool8Test",
291	>	};
292	>	addNamedTestClasses(suite, java8TestClassNames);
293	>	}
294
295		return suite;
296		}
#	Line 205 | Line 310 | public class JSR166TestCase extends Test
310		return 50;
311		}
312
208	–
313		/**
314		* Sets delays as multiples of SHORT_DELAY.
315		*/
#	Line 213 | Line 317 | public class JSR166TestCase extends Test
317		SHORT_DELAY_MS = getShortDelay();
318		SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
319		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
320	<	LONG_DELAY_MS   = SHORT_DELAY_MS * 50;
320	>	LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
321	>	}
322	>
323	>	/**
324	>	* Returns a timeout in milliseconds to be used in tests that
325	>	* verify that operations block or time out.
326	>	*/
327	>	long timeoutMillis() {
328	>	return SHORT_DELAY_MS / 4;
329	>	}
330	>
331	>	/**
332	>	* Returns a new Date instance representing a time delayMillis
333	>	* milliseconds in the future.
334	>	*/
335	>	Date delayedDate(long delayMillis) {
336	>	return new Date(System.currentTimeMillis() + delayMillis);
337		}
338
339		/**
#	Line 237 | Line 357 | public class JSR166TestCase extends Test
357		}
358
359		/**
360	+	* Extra checks that get done for all test cases.
361	+	*
362		* Triggers test case failure if any thread assertions have failed,
363		* by rethrowing, in the test harness thread, any exception recorded
364		* earlier by threadRecordFailure.
365	+	*
366	+	* Triggers test case failure if interrupt status is set in the main thread.
367		*/
368		public void tearDown() throws Exception {
369	<	Throwable t = threadFailure.get();
369	>	Throwable t = threadFailure.getAndSet(null);
370		if (t != null) {
371		if (t instanceof Error)
372		throw (Error) t;
#	Line 257 | Line 381 | public class JSR166TestCase extends Test
381		throw afe;
382		}
383		}
384	+
385	+	if (Thread.interrupted())
386	+	throw new AssertionFailedError("interrupt status set in main thread");
387	+
388	+	checkForkJoinPoolThreadLeaks();
389	+	}
390	+
391	+	/**
392	+	* Find missing try { ... } finally { joinPool(e); }
393	+	*/
394	+	void checkForkJoinPoolThreadLeaks() throws InterruptedException {
395	+	Thread[] survivors = new Thread[5];
396	+	int count = Thread.enumerate(survivors);
397	+	for (int i = 0; i < count; i++) {
398	+	Thread thread = survivors[i];
399	+	String name = thread.getName();
400	+	if (name.startsWith("ForkJoinPool-")) {
401	+	// give thread some time to terminate
402	+	thread.join(LONG_DELAY_MS);
403	+	if (!thread.isAlive()) continue;
404	+	thread.stop();
405	+	throw new AssertionFailedError
406	+	(String.format("Found leaked ForkJoinPool thread test=%s thread=%s%n",
407	+	toString(), name));
408	+	}
409	+	}
410		}
411
412		/**
#	Line 388 | Line 538 | public class JSR166TestCase extends Test
538		else {
539		AssertionFailedError afe =
540		new AssertionFailedError("unexpected exception: " + t);
541	<	t.initCause(t);
541	>	afe.initCause(t);
542		throw afe;
543		}
544		}
545
546		/**
547	+	* Delays, via Thread.sleep, for the given millisecond delay, but
548	+	* if the sleep is shorter than specified, may re-sleep or yield
549	+	* until time elapses.
550	+	*/
551	+	static void delay(long millis) throws InterruptedException {
552	+	long startTime = System.nanoTime();
553	+	long ns = millis * 1000 * 1000;
554	+	for (;;) {
555	+	if (millis > 0L)
556	+	Thread.sleep(millis);
557	+	else // too short to sleep
558	+	Thread.yield();
559	+	long d = ns - (System.nanoTime() - startTime);
560	+	if (d > 0L)
561	+	millis = d / (1000 * 1000);
562	+	else
563	+	break;
564	+	}
565	+	}
566	+
567	+	/**
568		* Waits out termination of a thread pool or fails doing so.
569		*/
570	<	public void joinPool(ExecutorService exec) {
570	>	void joinPool(ExecutorService exec) {
571		try {
572		exec.shutdown();
573		assertTrue("ExecutorService did not terminate in a timely manner",
574	<	exec.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
574	>	exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS));
575		} catch (SecurityException ok) {
576		// Allowed in case test doesn't have privs
577		} catch (InterruptedException ie) {
#	Line 408 | Line 579 | public class JSR166TestCase extends Test
579		}
580		}
581
582	+	/**
583	+	* A debugging tool to print all stack traces, as jstack does.
584	+	*/
585	+	static void printAllStackTraces() {
586	+	for (ThreadInfo info :
587	+	ManagementFactory.getThreadMXBean()
588	+	.dumpAllThreads(true, true))
589	+	System.err.print(info);
590	+	}
591	+
592	+	/**
593	+	* Checks that thread does not terminate within the default
594	+	* millisecond delay of {@code timeoutMillis()}.
595	+	*/
596	+	void assertThreadStaysAlive(Thread thread) {
597	+	assertThreadStaysAlive(thread, timeoutMillis());
598	+	}
599	+
600	+	/**
601	+	* Checks that thread does not terminate within the given millisecond delay.
602	+	*/
603	+	void assertThreadStaysAlive(Thread thread, long millis) {
604	+	try {
605	+	// No need to optimize the failing case via Thread.join.
606	+	delay(millis);
607	+	assertTrue(thread.isAlive());
608	+	} catch (InterruptedException ie) {
609	+	fail("Unexpected InterruptedException");
610	+	}
611	+	}
612	+
613	+	/**
614	+	* Checks that the threads do not terminate within the default
615	+	* millisecond delay of {@code timeoutMillis()}.
616	+	*/
617	+	void assertThreadsStayAlive(Thread... threads) {
618	+	assertThreadsStayAlive(timeoutMillis(), threads);
619	+	}
620	+
621	+	/**
622	+	* Checks that the threads do not terminate within the given millisecond delay.
623	+	*/
624	+	void assertThreadsStayAlive(long millis, Thread... threads) {
625	+	try {
626	+	// No need to optimize the failing case via Thread.join.
627	+	delay(millis);
628	+	for (Thread thread : threads)
629	+	assertTrue(thread.isAlive());
630	+	} catch (InterruptedException ie) {
631	+	fail("Unexpected InterruptedException");
632	+	}
633	+	}
634	+
635	+	/**
636	+	* Checks that future.get times out, with the default timeout of
637	+	* {@code timeoutMillis()}.
638	+	*/
639	+	void assertFutureTimesOut(Future future) {
640	+	assertFutureTimesOut(future, timeoutMillis());
641	+	}
642	+
643	+	/**
644	+	* Checks that future.get times out, with the given millisecond timeout.
645	+	*/
646	+	void assertFutureTimesOut(Future future, long timeoutMillis) {
647	+	long startTime = System.nanoTime();
648	+	try {
649	+	future.get(timeoutMillis, MILLISECONDS);
650	+	shouldThrow();
651	+	} catch (TimeoutException success) {
652	+	} catch (Exception e) {
653	+	threadUnexpectedException(e);
654	+	} finally { future.cancel(true); }
655	+	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
656	+	}
657
658		/**
659		* Fails with message "should throw exception".
#	Line 460 | Line 706 | public class JSR166TestCase extends Test
706		SecurityManager sm = System.getSecurityManager();
707		if (sm == null) {
708		r.run();
709	+	}
710	+	runWithSecurityManagerWithPermissions(r, permissions);
711	+	}
712	+
713	+	/**
714	+	* Runs Runnable r with a security policy that permits precisely
715	+	* the specified permissions.  If there is no current security
716	+	* manager, a temporary one is set for the duration of the
717	+	* Runnable.  We require that any security manager permit
718	+	* getPolicy/setPolicy.
719	+	*/
720	+	public void runWithSecurityManagerWithPermissions(Runnable r,
721	+	Permission... permissions) {
722	+	SecurityManager sm = System.getSecurityManager();
723	+	if (sm == null) {
724		Policy savedPolicy = Policy.getPolicy();
725		try {
726		Policy.setPolicy(permissivePolicy());
727		System.setSecurityManager(new SecurityManager());
728	<	runWithPermissions(r, permissions);
728	>	runWithSecurityManagerWithPermissions(r, permissions);
729		} finally {
730		System.setSecurityManager(null);
731		Policy.setPolicy(savedPolicy);
#	Line 512 | Line 773 | public class JSR166TestCase extends Test
773		return perms.implies(p);
774		}
775		public void refresh() {}
776	+	public String toString() {
777	+	List<Permission> ps = new ArrayList<Permission>();
778	+	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
779	+	ps.add(e.nextElement());
780	+	return "AdjustablePolicy with permissions " + ps;
781	+	}
782		}
783
784		/**
#	Line 534 | Line 801 | public class JSR166TestCase extends Test
801		}
802
803		/**
804	<	* Sleeps until the timeout has elapsed, or interrupted.
805	<	* Does <em>NOT</em> throw InterruptedException.
804	>	* Sleeps until the given time has elapsed.
805	>	* Throws AssertionFailedError if interrupted.
806		*/
807	<	void sleepTillInterrupted(long timeoutMillis) {
807	>	void sleep(long millis) {
808		try {
809	<	Thread.sleep(timeoutMillis);
810	<	} catch (InterruptedException wakeup) {}
809	>	delay(millis);
810	>	} catch (InterruptedException ie) {
811	>	AssertionFailedError afe =
812	>	new AssertionFailedError("Unexpected InterruptedException");
813	>	afe.initCause(ie);
814	>	throw afe;
815	>	}
816	>	}
817	>
818	>	/**
819	>	* Spin-waits up to the specified number of milliseconds for the given
820	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
821	>	*/
822	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
823	>	long startTime = System.nanoTime();
824	>	for (;;) {
825	>	Thread.State s = thread.getState();
826	>	if (s == Thread.State.BLOCKED ||
827	>	s == Thread.State.WAITING ||
828	>	s == Thread.State.TIMED_WAITING)
829	>	return;
830	>	else if (s == Thread.State.TERMINATED)
831	>	fail("Unexpected thread termination");
832	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
833	>	threadAssertTrue(thread.isAlive());
834	>	return;
835	>	}
836	>	Thread.yield();
837	>	}
838	>	}
839	>
840	>	/**
841	>	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
842	>	* state: BLOCKED, WAITING, or TIMED_WAITING.
843	>	*/
844	>	void waitForThreadToEnterWaitState(Thread thread) {
845	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
846	>	}
847	>
848	>	/**
849	>	* Returns the number of milliseconds since time given by
850	>	* startNanoTime, which must have been previously returned from a
851	>	* call to {@link System.nanoTime()}.
852	>	*/
853	>	long millisElapsedSince(long startNanoTime) {
854	>	return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
855		}
856
857		/**
#	Line 564 | Line 875 | public class JSR166TestCase extends Test
875		} catch (InterruptedException ie) {
876		threadUnexpectedException(ie);
877		} finally {
878	<	if (t.isAlive()) {
878	>	if (t.getState() != Thread.State.TERMINATED) {
879		t.interrupt();
880		fail("Test timed out");
881		}
882		}
883		}
884
885	+	/**
886	+	* Waits for LONG_DELAY_MS milliseconds for the thread to
887	+	* terminate (using {@link Thread#join(long)}), else interrupts
888	+	* the thread (in the hope that it may terminate later) and fails.
889	+	*/
890	+	void awaitTermination(Thread t) {
891	+	awaitTermination(t, LONG_DELAY_MS);
892	+	}
893	+
894		// Some convenient Runnable classes
895
896		public abstract class CheckedRunnable implements Runnable {
#	Line 633 | Line 953 | public class JSR166TestCase extends Test
953		realRun();
954		threadShouldThrow("InterruptedException");
955		} catch (InterruptedException success) {
956	+	threadAssertFalse(Thread.interrupted());
957		} catch (Throwable t) {
958		threadUnexpectedException(t);
959		}
#	Line 662 | Line 983 | public class JSR166TestCase extends Test
983		threadShouldThrow("InterruptedException");
984		return result;
985		} catch (InterruptedException success) {
986	+	threadAssertFalse(Thread.interrupted());
987		} catch (Throwable t) {
988		threadUnexpectedException(t);
989		}
#	Line 685 | Line 1007 | public class JSR166TestCase extends Test
1007
1008		public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
1009		return new CheckedCallable<String>() {
1010	<	public String realCall() {
1010	>	protected String realCall() {
1011		try {
1012		latch.await();
1013		} catch (InterruptedException quittingTime) {}
#	Line 693 | Line 1015 | public class JSR166TestCase extends Test
1015		}};
1016		}
1017
1018	+	public Runnable awaiter(final CountDownLatch latch) {
1019	+	return new CheckedRunnable() {
1020	+	public void realRun() throws InterruptedException {
1021	+	await(latch);
1022	+	}};
1023	+	}
1024	+
1025	+	public void await(CountDownLatch latch) {
1026	+	try {
1027	+	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1028	+	} catch (Throwable t) {
1029	+	threadUnexpectedException(t);
1030	+	}
1031	+	}
1032	+
1033	+	public void await(Semaphore semaphore) {
1034	+	try {
1035	+	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1036	+	} catch (Throwable t) {
1037	+	threadUnexpectedException(t);
1038	+	}
1039	+	}
1040	+
1041	+	//     /**
1042	+	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1043	+	//      */
1044	+	//     public void await(AtomicBoolean flag) {
1045	+	//         await(flag, LONG_DELAY_MS);
1046	+	//     }
1047	+
1048	+	//     /**
1049	+	//      * Spin-waits up to the specified timeout until flag becomes true.
1050	+	//      */
1051	+	//     public void await(AtomicBoolean flag, long timeoutMillis) {
1052	+	//         long startTime = System.nanoTime();
1053	+	//         while (!flag.get()) {
1054	+	//             if (millisElapsedSince(startTime) > timeoutMillis)
1055	+	//                 throw new AssertionFailedError("timed out");
1056	+	//             Thread.yield();
1057	+	//         }
1058	+	//     }
1059	+
1060		public static class NPETask implements Callable<String> {
1061		public String call() { throw new NullPointerException(); }
1062		}
#	Line 703 | Line 1067 | public class JSR166TestCase extends Test
1067
1068		public class ShortRunnable extends CheckedRunnable {
1069		protected void realRun() throws Throwable {
1070	<	Thread.sleep(SHORT_DELAY_MS);
1070	>	delay(SHORT_DELAY_MS);
1071		}
1072		}
1073
1074		public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1075		protected void realRun() throws InterruptedException {
1076	<	Thread.sleep(SHORT_DELAY_MS);
1076	>	delay(SHORT_DELAY_MS);
1077		}
1078		}
1079
1080		public class SmallRunnable extends CheckedRunnable {
1081		protected void realRun() throws Throwable {
1082	<	Thread.sleep(SMALL_DELAY_MS);
1082	>	delay(SMALL_DELAY_MS);
1083		}
1084		}
1085
1086		public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1087		protected void realRun() {
1088		try {
1089	<	Thread.sleep(SMALL_DELAY_MS);
1089	>	delay(SMALL_DELAY_MS);
1090		} catch (InterruptedException ok) {}
1091		}
1092		}
1093
1094		public class SmallCallable extends CheckedCallable {
1095		protected Object realCall() throws InterruptedException {
1096	<	Thread.sleep(SMALL_DELAY_MS);
1096	>	delay(SMALL_DELAY_MS);
1097		return Boolean.TRUE;
1098		}
1099		}
1100
1101		public class MediumRunnable extends CheckedRunnable {
1102		protected void realRun() throws Throwable {
1103	<	Thread.sleep(MEDIUM_DELAY_MS);
1103	>	delay(MEDIUM_DELAY_MS);
1104		}
1105		}
1106
1107		public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1108		protected void realRun() throws InterruptedException {
1109	<	Thread.sleep(MEDIUM_DELAY_MS);
1109	>	delay(MEDIUM_DELAY_MS);
1110		}
1111		}
1112
1113	+	public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1114	+	return new CheckedRunnable() {
1115	+	protected void realRun() {
1116	+	try {
1117	+	delay(timeoutMillis);
1118	+	} catch (InterruptedException ok) {}
1119	+	}};
1120	+	}
1121	+
1122		public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1123		protected void realRun() {
1124		try {
1125	<	Thread.sleep(MEDIUM_DELAY_MS);
1125	>	delay(MEDIUM_DELAY_MS);
1126		} catch (InterruptedException ok) {}
1127		}
1128		}
#	Line 757 | Line 1130 | public class JSR166TestCase extends Test
1130		public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1131		protected void realRun() {
1132		try {
1133	<	Thread.sleep(LONG_DELAY_MS);
1133	>	delay(LONG_DELAY_MS);
1134		} catch (InterruptedException ok) {}
1135		}
1136		}
#	Line 771 | Line 1144 | public class JSR166TestCase extends Test
1144		}
1145		}
1146
1147	+	public interface TrackedRunnable extends Runnable {
1148	+	boolean isDone();
1149	+	}
1150	+
1151	+	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1152	+	return new TrackedRunnable() {
1153	+	private volatile boolean done = false;
1154	+	public boolean isDone() { return done; }
1155	+	public void run() {
1156	+	try {
1157	+	delay(timeoutMillis);
1158	+	done = true;
1159	+	} catch (InterruptedException ok) {}
1160	+	}
1161	+	};
1162	+	}
1163	+
1164		public static class TrackedShortRunnable implements Runnable {
1165		public volatile boolean done = false;
1166		public void run() {
1167		try {
1168	<	Thread.sleep(SMALL_DELAY_MS);
1168	>	delay(SHORT_DELAY_MS);
1169	>	done = true;
1170	>	} catch (InterruptedException ok) {}
1171	>	}
1172	>	}
1173	>
1174	>	public static class TrackedSmallRunnable implements Runnable {
1175	>	public volatile boolean done = false;
1176	>	public void run() {
1177	>	try {
1178	>	delay(SMALL_DELAY_MS);
1179		done = true;
1180		} catch (InterruptedException ok) {}
1181		}
#	Line 785 | Line 1185 | public class JSR166TestCase extends Test
1185		public volatile boolean done = false;
1186		public void run() {
1187		try {
1188	<	Thread.sleep(MEDIUM_DELAY_MS);
1188	>	delay(MEDIUM_DELAY_MS);
1189		done = true;
1190		} catch (InterruptedException ok) {}
1191		}
#	Line 795 | Line 1195 | public class JSR166TestCase extends Test
1195		public volatile boolean done = false;
1196		public void run() {
1197		try {
1198	<	Thread.sleep(LONG_DELAY_MS);
1198	>	delay(LONG_DELAY_MS);
1199		done = true;
1200		} catch (InterruptedException ok) {}
1201		}
#	Line 812 | Line 1212 | public class JSR166TestCase extends Test
1212		public volatile boolean done = false;
1213		public Object call() {
1214		try {
1215	<	Thread.sleep(SMALL_DELAY_MS);
1215	>	delay(SMALL_DELAY_MS);
1216		done = true;
1217		} catch (InterruptedException ok) {}
1218		return Boolean.TRUE;
#	Line 858 | Line 1258 | public class JSR166TestCase extends Test
1258		ThreadPoolExecutor executor) {}
1259		}
1260
1261	+	/**
1262	+	* A CyclicBarrier that uses timed await and fails with
1263	+	* AssertionFailedErrors instead of throwing checked exceptions.
1264	+	*/
1265	+	public class CheckedBarrier extends CyclicBarrier {
1266	+	public CheckedBarrier(int parties) { super(parties); }
1267	+
1268	+	public int await() {
1269	+	try {
1270	+	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1271	+	} catch (TimeoutException e) {
1272	+	throw new AssertionFailedError("timed out");
1273	+	} catch (Exception e) {
1274	+	AssertionFailedError afe =
1275	+	new AssertionFailedError("Unexpected exception: " + e);
1276	+	afe.initCause(e);
1277	+	throw afe;
1278	+	}
1279	+	}
1280	+	}
1281	+
1282	+	void checkEmpty(BlockingQueue q) {
1283	+	try {
1284	+	assertTrue(q.isEmpty());
1285	+	assertEquals(0, q.size());
1286	+	assertNull(q.peek());
1287	+	assertNull(q.poll());
1288	+	assertNull(q.poll(0, MILLISECONDS));
1289	+	assertEquals(q.toString(), "[]");
1290	+	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1291	+	assertFalse(q.iterator().hasNext());
1292	+	try {
1293	+	q.element();
1294	+	shouldThrow();
1295	+	} catch (NoSuchElementException success) {}
1296	+	try {
1297	+	q.iterator().next();
1298	+	shouldThrow();
1299	+	} catch (NoSuchElementException success) {}
1300	+	try {
1301	+	q.remove();
1302	+	shouldThrow();
1303	+	} catch (NoSuchElementException success) {}
1304	+	} catch (InterruptedException ie) {
1305	+	threadUnexpectedException(ie);
1306	+	}
1307	+	}
1308	+
1309	+	void assertSerialEquals(Object x, Object y) {
1310	+	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1311	+	}
1312	+
1313	+	void assertNotSerialEquals(Object x, Object y) {
1314	+	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1315	+	}
1316	+
1317	+	byte[] serialBytes(Object o) {
1318	+	try {
1319	+	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1320	+	ObjectOutputStream oos = new ObjectOutputStream(bos);
1321	+	oos.writeObject(o);
1322	+	oos.flush();
1323	+	oos.close();
1324	+	return bos.toByteArray();
1325	+	} catch (Throwable t) {
1326	+	threadUnexpectedException(t);
1327	+	return new byte[0];
1328	+	}
1329	+	}
1330	+
1331	+	@SuppressWarnings("unchecked")
1332	+	<T> T serialClone(T o) {
1333	+	try {
1334	+	ObjectInputStream ois = new ObjectInputStream
1335	+	(new ByteArrayInputStream(serialBytes(o)));
1336	+	T clone = (T) ois.readObject();
1337	+	assertSame(o.getClass(), clone.getClass());
1338	+	return clone;
1339	+	} catch (Throwable t) {
1340	+	threadUnexpectedException(t);
1341	+	return null;
1342	+	}
1343	+	}
1344		}

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