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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.67 by jsr166, Fri Oct 29 06:58:56 2010 UTC vs.
Revision 1.100 by jsr166, Wed Feb 6 16:55:50 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;
#	Line 61 | 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 134 | Line 148 | public class JSR166TestCase extends Test
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 166 | Line 182 | public class JSR166TestCase extends Test
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.
217		*/
218		public static Test suite() {
219	<	return newTestSuite(
219	>	// Java7+ test classes
220	>	TestSuite suite = newTestSuite(
221		ForkJoinPoolTest.suite(),
222		ForkJoinTaskTest.suite(),
223		RecursiveActionTest.suite(),
#	Line 235 | Line 282 | public class JSR166TestCase extends Test
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		}
297
298
#	Line 252 | Line 310 | public class JSR166TestCase extends Test
310		return 50;
311		}
312
255	–
313		/**
314		* Sets delays as multiples of SHORT_DELAY.
315		*/
#	Line 260 | 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 284 | 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 304 | 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	+	/**
413		* Just like fail(reason), but additionally recording (using
414		* threadRecordFailure) any AssertionFailedError thrown, so that
415		* the current testcase will fail.
#	Line 435 | 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 455 | 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 507 | 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 559 | 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 586 | Line 806 | public class JSR166TestCase extends Test
806		*/
807		void sleep(long millis) {
808		try {
809	<	Thread.sleep(millis);
809	>	delay(millis);
810		} catch (InterruptedException ie) {
811		AssertionFailedError afe =
812		new AssertionFailedError("Unexpected InterruptedException");
#	Line 596 | Line 816 | public class JSR166TestCase extends Test
816		}
817
818		/**
819	<	* Sleeps until the timeout has elapsed, or interrupted.
600	<	* Does <em>NOT</em> throw InterruptedException.
601	<	*/
602	<	void sleepTillInterrupted(long timeoutMillis) {
603	<	try {
604	<	Thread.sleep(timeoutMillis);
605	<	} catch (InterruptedException wakeup) {}
606	<	}
607	<
608	<	/**
609	<	* Waits up to the specified number of milliseconds for the given
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 timeoutNanos = timeoutMillis * 1000L * 1000L;
614	<	long t0 = System.nanoTime();
823	>	long startTime = System.nanoTime();
824		for (;;) {
825		Thread.State s = thread.getState();
826		if (s == Thread.State.BLOCKED ||
#	Line 620 | Line 829 | public class JSR166TestCase extends Test
829		return;
830		else if (s == Thread.State.TERMINATED)
831		fail("Unexpected thread termination");
832	<	else if (System.nanoTime() - t0 > timeoutNanos) {
832	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
833		threadAssertTrue(thread.isAlive());
834		return;
835		}
#	Line 629 | Line 838 | public class JSR166TestCase extends Test
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()}.
#	Line 636 | Line 853 | public class JSR166TestCase extends Test
853		long millisElapsedSince(long startNanoTime) {
854		return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
855		}
856	<
856	>
857		/**
858		* Returns a new started daemon Thread running the given runnable.
859		*/
#	Line 658 | 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 727 | 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 756 | 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 787 | 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 797 | 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
#	Line 844 | Line 1114 | public class JSR166TestCase extends Test
1114		return new CheckedRunnable() {
1115		protected void realRun() {
1116		try {
1117	<	Thread.sleep(timeoutMillis);
1117	>	delay(timeoutMillis);
1118		} catch (InterruptedException ok) {}
1119		}};
1120		}
#	Line 852 | Line 1122 | public class JSR166TestCase extends Test
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 860 | 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 884 | Line 1154 | public class JSR166TestCase extends Test
1154		public boolean isDone() { return done; }
1155		public void run() {
1156		try {
1157	<	Thread.sleep(timeoutMillis);
1157	>	delay(timeoutMillis);
1158		done = true;
1159		} catch (InterruptedException ok) {}
1160		}
#	Line 895 | Line 1165 | public class JSR166TestCase extends Test
1165		public volatile boolean done = false;
1166		public void run() {
1167		try {
1168	<	Thread.sleep(SHORT_DELAY_MS);
1168	>	delay(SHORT_DELAY_MS);
1169		done = true;
1170		} catch (InterruptedException ok) {}
1171		}
#	Line 905 | Line 1175 | public class JSR166TestCase extends Test
1175		public volatile boolean done = false;
1176		public void run() {
1177		try {
1178	<	Thread.sleep(SMALL_DELAY_MS);
1178	>	delay(SMALL_DELAY_MS);
1179		done = true;
1180		} catch (InterruptedException ok) {}
1181		}
#	Line 915 | 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 925 | 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 942 | 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 989 | Line 1259 | public class JSR166TestCase extends Test
1259		}
1260
1261		/**
1262	<	* A CyclicBarrier that fails with AssertionFailedErrors instead
1263	<	* of throwing checked exceptions.
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();
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);
#	Line 1007 | Line 1279 | public class JSR166TestCase extends Test
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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