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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.183 by jsr166, Sat Jan 23 20:15:28 2016 UTC vs.
Revision 1.233 by jsr166, Sat Jul 15 23:15:21 2017 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
2	>	* Written by Doug Lea and Martin Buchholz with assistance from
3	>	* members of JCP JSR-166 Expert Group and released to the public
4	>	* domain, as explained at
5		* http://creativecommons.org/publicdomain/zero/1.0/
6		* Other contributors include Andrew Wright, Jeffrey Hayes,
7		* Pat Fisher, Mike Judd.
#	Line 8 | Line 9
9
10		/*
11		* @test
12	<	* @summary JSR-166 tck tests
12	>	* @summary JSR-166 tck tests, in a number of variations.
13	>	*          The first is the conformance testing variant,
14	>	*          while others also test implementation details.
15		* @build *
16	<	* @run junit/othervm/timeout=1000 -Djsr166.testImplementationDetails=true JSR166TestCase
16	>	* @modules java.management
17	>	* @run junit/othervm/timeout=1000 JSR166TestCase
18	>	* @run junit/othervm/timeout=1000
19	>	*      --add-opens java.base/java.util.concurrent=ALL-UNNAMED
20	>	*      --add-opens java.base/java.lang=ALL-UNNAMED
21	>	*      -Djsr166.testImplementationDetails=true
22	>	*      JSR166TestCase
23	>	* @run junit/othervm/timeout=1000
24	>	*      --add-opens java.base/java.util.concurrent=ALL-UNNAMED
25	>	*      --add-opens java.base/java.lang=ALL-UNNAMED
26	>	*      -Djsr166.testImplementationDetails=true
27	>	*      -Djava.util.concurrent.ForkJoinPool.common.parallelism=0
28	>	*      JSR166TestCase
29	>	* @run junit/othervm/timeout=1000
30	>	*      --add-opens java.base/java.util.concurrent=ALL-UNNAMED
31	>	*      --add-opens java.base/java.lang=ALL-UNNAMED
32	>	*      -Djsr166.testImplementationDetails=true
33	>	*      -Djava.util.concurrent.ForkJoinPool.common.parallelism=1
34	>	*      -Djava.util.secureRandomSeed=true
35	>	*      JSR166TestCase
36	>	* @run junit/othervm/timeout=1000/policy=tck.policy
37	>	*      --add-opens java.base/java.util.concurrent=ALL-UNNAMED
38	>	*      --add-opens java.base/java.lang=ALL-UNNAMED
39	>	*      -Djsr166.testImplementationDetails=true
40	>	*      JSR166TestCase
41		*/
42
43		import static java.util.concurrent.TimeUnit.MILLISECONDS;
#	Line 27 | Line 54 | import java.lang.management.ThreadMXBean
54		import java.lang.reflect.Constructor;
55		import java.lang.reflect.Method;
56		import java.lang.reflect.Modifier;
30	–	import java.nio.file.Files;
31	–	import java.nio.file.Paths;
57		import java.security.CodeSource;
58		import java.security.Permission;
59		import java.security.PermissionCollection;
#	Line 38 | Line 63 | import java.security.ProtectionDomain;
63		import java.security.SecurityPermission;
64		import java.util.ArrayList;
65		import java.util.Arrays;
66	+	import java.util.Collection;
67	+	import java.util.Collections;
68		import java.util.Date;
69		import java.util.Enumeration;
70		import java.util.Iterator;
#	Line 57 | Line 84 | import java.util.concurrent.RecursiveAct
84		import java.util.concurrent.RecursiveTask;
85		import java.util.concurrent.RejectedExecutionHandler;
86		import java.util.concurrent.Semaphore;
87	+	import java.util.concurrent.SynchronousQueue;
88		import java.util.concurrent.ThreadFactory;
89	+	import java.util.concurrent.ThreadLocalRandom;
90		import java.util.concurrent.ThreadPoolExecutor;
91	+	import java.util.concurrent.TimeUnit;
92		import java.util.concurrent.TimeoutException;
93	+	import java.util.concurrent.atomic.AtomicBoolean;
94		import java.util.concurrent.atomic.AtomicReference;
64	–	import java.util.regex.Matcher;
95		import java.util.regex.Pattern;
96
97		import junit.framework.AssertionFailedError;
#	Line 183 | Line 213 | public class JSR166TestCase extends Test
213		Integer.getInteger("jsr166.suiteRuns", 1);
214
215		/**
216	<	* The scaling factor to apply to standard delays used in tests.
216	>	* Returns the value of the system property, or NaN if not defined.
217		*/
218	<	private static final int delayFactor =
219	<	Integer.getInteger("jsr166.delay.factor", 1);
218	>	private static float systemPropertyValue(String name) {
219	>	String floatString = System.getProperty(name);
220	>	if (floatString == null)
221	>	return Float.NaN;
222	>	try {
223	>	return Float.parseFloat(floatString);
224	>	} catch (NumberFormatException ex) {
225	>	throw new IllegalArgumentException(
226	>	String.format("Bad float value in system property %s=%s",
227	>	name, floatString));
228	>	}
229	>	}
230	>
231	>	/**
232	>	* The scaling factor to apply to standard delays used in tests.
233	>	* May be initialized from any of:
234	>	* - the "jsr166.delay.factor" system property
235	>	* - the "test.timeout.factor" system property (as used by jtreg)
236	>	*   See: http://openjdk.java.net/jtreg/tag-spec.html
237	>	* - hard-coded fuzz factor when using a known slowpoke VM
238	>	*/
239	>	private static final float delayFactor = delayFactor();
240	>
241	>	private static float delayFactor() {
242	>	float x;
243	>	if (!Float.isNaN(x = systemPropertyValue("jsr166.delay.factor")))
244	>	return x;
245	>	if (!Float.isNaN(x = systemPropertyValue("test.timeout.factor")))
246	>	return x;
247	>	String prop = System.getProperty("java.vm.version");
248	>	if (prop != null && prop.matches(".*debug.*"))
249	>	return 4.0f; // How much slower is fastdebug than product?!
250	>	return 1.0f;
251	>	}
252
253		public JSR166TestCase() { super(); }
254		public JSR166TestCase(String name) { super(name); }
#	Line 239 | Line 301 | public class JSR166TestCase extends Test
301
302		//     public static String cpuModel() {
303		//         try {
304	<	//             Matcher matcher = Pattern.compile("model name\\s*: (.*)")
304	>	//             java.util.regex.Matcher matcher
305	>	//               = Pattern.compile("model name\\s*: (.*)")
306		//                 .matcher(new String(
307	<	//                      Files.readAllBytes(Paths.get("/proc/cpuinfo")), "UTF-8"));
307	>	//                     java.nio.file.Files.readAllBytes(
308	>	//                         java.nio.file.Paths.get("/proc/cpuinfo")), "UTF-8"));
309		//             matcher.find();
310		//             return matcher.group(1);
311		//         } catch (Exception ex) { return null; }
#	Line 408 | Line 472 | public class JSR166TestCase extends Test
472		AbstractQueuedLongSynchronizerTest.suite(),
473		ArrayBlockingQueueTest.suite(),
474		ArrayDequeTest.suite(),
475	+	ArrayListTest.suite(),
476		AtomicBooleanTest.suite(),
477		AtomicIntegerArrayTest.suite(),
478		AtomicIntegerFieldUpdaterTest.suite(),
#	Line 430 | Line 495 | public class JSR166TestCase extends Test
495		CopyOnWriteArrayListTest.suite(),
496		CopyOnWriteArraySetTest.suite(),
497		CountDownLatchTest.suite(),
498	+	CountedCompleterTest.suite(),
499		CyclicBarrierTest.suite(),
500		DelayQueueTest.suite(),
501		EntryTest.suite(),
#	Line 458 | Line 524 | public class JSR166TestCase extends Test
524		TreeMapTest.suite(),
525		TreeSetTest.suite(),
526		TreeSubMapTest.suite(),
527	<	TreeSubSetTest.suite());
527	>	TreeSubSetTest.suite(),
528	>	VectorTest.suite());
529
530		// Java8+ test classes
531		if (atLeastJava8()) {
532		String[] java8TestClassNames = {
533	+	"ArrayDeque8Test",
534		"Atomic8Test",
535		"CompletableFutureTest",
536		"ConcurrentHashMap8Test",
537	<	"CountedCompleterTest",
537	>	"CountedCompleter8Test",
538		"DoubleAccumulatorTest",
539		"DoubleAdderTest",
540		"ForkJoinPool8Test",
541		"ForkJoinTask8Test",
542	+	"LinkedBlockingDeque8Test",
543	+	"LinkedBlockingQueue8Test",
544		"LongAccumulatorTest",
545		"LongAdderTest",
546		"SplittableRandomTest",
547		"StampedLockTest",
548		"SubmissionPublisherTest",
549		"ThreadLocalRandom8Test",
550	+	"TimeUnit8Test",
551		};
552		addNamedTestClasses(suite, java8TestClassNames);
553		}
#	Line 484 | Line 555 | public class JSR166TestCase extends Test
555		// Java9+ test classes
556		if (atLeastJava9()) {
557		String[] java9TestClassNames = {
558	<	// Currently empty, but expecting varhandle tests
558	>	"AtomicBoolean9Test",
559	>	"AtomicInteger9Test",
560	>	"AtomicIntegerArray9Test",
561	>	"AtomicLong9Test",
562	>	"AtomicLongArray9Test",
563	>	"AtomicReference9Test",
564	>	"AtomicReferenceArray9Test",
565	>	"ExecutorCompletionService9Test",
566	>	"ForkJoinPool9Test",
567		};
568		addNamedTestClasses(suite, java9TestClassNames);
569		}
#	Line 495 | Line 574 | public class JSR166TestCase extends Test
574		/** Returns list of junit-style test method names in given class. */
575		public static ArrayList<String> testMethodNames(Class<?> testClass) {
576		Method[] methods = testClass.getDeclaredMethods();
577	<	ArrayList<String> names = new ArrayList<String>(methods.length);
577	>	ArrayList<String> names = new ArrayList<>(methods.length);
578		for (Method method : methods) {
579		if (method.getName().startsWith("test")
580		&& Modifier.isPublic(method.getModifiers())
#	Line 560 | Line 639 | public class JSR166TestCase extends Test
639		public static long MEDIUM_DELAY_MS;
640		public static long LONG_DELAY_MS;
641
642	+	private static final long RANDOM_TIMEOUT;
643	+	private static final long RANDOM_EXPIRED_TIMEOUT;
644	+	private static final TimeUnit RANDOM_TIMEUNIT;
645	+	static {
646	+	ThreadLocalRandom rnd = ThreadLocalRandom.current();
647	+	long[] timeouts = { Long.MIN_VALUE, -1, 0, 1, Long.MAX_VALUE };
648	+	RANDOM_TIMEOUT = timeouts[rnd.nextInt(timeouts.length)];
649	+	RANDOM_EXPIRED_TIMEOUT = timeouts[rnd.nextInt(3)];
650	+	TimeUnit[] timeUnits = TimeUnit.values();
651	+	RANDOM_TIMEUNIT = timeUnits[rnd.nextInt(timeUnits.length)];
652	+	}
653	+
654	+	/**
655	+	* Returns a timeout for use when any value at all will do.
656	+	*/
657	+	static long randomTimeout() { return RANDOM_TIMEOUT; }
658	+
659	+	/**
660	+	* Returns a timeout that means "no waiting", i.e. not positive.
661	+	*/
662	+	static long randomExpiredTimeout() { return RANDOM_EXPIRED_TIMEOUT; }
663	+
664	+	/**
665	+	* Returns a random non-null TimeUnit.
666	+	*/
667	+	static TimeUnit randomTimeUnit() { return RANDOM_TIMEUNIT; }
668	+
669		/**
670		* Returns the shortest timed delay. This can be scaled up for
671	<	* slow machines using the jsr166.delay.factor system property.
671	>	* slow machines using the jsr166.delay.factor system property,
672	>	* or via jtreg's -timeoutFactor: flag.
673	>	* http://openjdk.java.net/jtreg/command-help.html
674		*/
675		protected long getShortDelay() {
676	<	return 50 * delayFactor;
676	>	return (long) (50 * delayFactor);
677		}
678
679		/**
#	Line 578 | Line 686 | public class JSR166TestCase extends Test
686		LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
687		}
688
689	+	private static final long TIMEOUT_DELAY_MS
690	+	= (long) (12.0 * Math.cbrt(delayFactor));
691	+
692		/**
693	<	* Returns a timeout in milliseconds to be used in tests that
694	<	* verify that operations block or time out.
693	>	* Returns a timeout in milliseconds to be used in tests that verify
694	>	* that operations block or time out.  We want this to be longer
695	>	* than the OS scheduling quantum, but not too long, so don't scale
696	>	* linearly with delayFactor; we use "crazy" cube root instead.
697		*/
698	<	long timeoutMillis() {
699	<	return SHORT_DELAY_MS / 4;
698	>	static long timeoutMillis() {
699	>	return TIMEOUT_DELAY_MS;
700		}
701
702		/**
#	Line 599 | Line 712 | public class JSR166TestCase extends Test
712		* The first exception encountered if any threadAssertXXX method fails.
713		*/
714		private final AtomicReference<Throwable> threadFailure
715	<	= new AtomicReference<Throwable>(null);
715	>	= new AtomicReference<>(null);
716
717		/**
718		* Records an exception so that it can be rethrown later in the test
#	Line 878 | Line 991 | public class JSR166TestCase extends Test
991		}};
992		}
993
994	+	PoolCleaner cleaner(ExecutorService pool, AtomicBoolean flag) {
995	+	return new PoolCleanerWithReleaser(pool, releaser(flag));
996	+	}
997	+
998	+	Runnable releaser(final AtomicBoolean flag) {
999	+	return new Runnable() { public void run() { flag.set(true); }};
1000	+	}
1001	+
1002		/**
1003		* Waits out termination of a thread pool or fails doing so.
1004		*/
#	Line 901 | Line 1022 | public class JSR166TestCase extends Test
1022		}
1023		}
1024
1025	<	/** Like Runnable, but with the freedom to throw anything */
1025	>	/**
1026	>	* Like Runnable, but with the freedom to throw anything.
1027	>	* junit folks had the same idea:
1028	>	* http://junit.org/junit5/docs/snapshot/api/org/junit/gen5/api/Executable.html
1029	>	*/
1030		interface Action { public void run() throws Throwable; }
1031
1032		/**
#	Line 932 | Line 1057 | public class JSR166TestCase extends Test
1057		* Uninteresting threads are filtered out.
1058		*/
1059		static void dumpTestThreads() {
1060	+	SecurityManager sm = System.getSecurityManager();
1061	+	if (sm != null) {
1062	+	try {
1063	+	System.setSecurityManager(null);
1064	+	} catch (SecurityException giveUp) {
1065	+	return;
1066	+	}
1067	+	}
1068	+
1069		ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
1070		System.err.println("------ stacktrace dump start ------");
1071		for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) {
1072	<	String name = info.getThreadName();
1072	>	final String name = info.getThreadName();
1073	>	String lockName;
1074		if ("Signal Dispatcher".equals(name))
1075		continue;
1076		if ("Reference Handler".equals(name)
1077	<	&& info.getLockName().startsWith("java.lang.ref.Reference$Lock"))
1077	>	&& (lockName = info.getLockName()) != null
1078	>	&& lockName.startsWith("java.lang.ref.Reference$Lock"))
1079		continue;
1080		if ("Finalizer".equals(name)
1081	<	&& info.getLockName().startsWith("java.lang.ref.ReferenceQueue$Lock"))
1081	>	&& (lockName = info.getLockName()) != null
1082	>	&& lockName.startsWith("java.lang.ref.ReferenceQueue$Lock"))
1083		continue;
1084		if ("checkForWedgedTest".equals(name))
1085		continue;
1086		System.err.print(info);
1087		}
1088		System.err.println("------ stacktrace dump end ------");
1089	+
1090	+	if (sm != null) System.setSecurityManager(sm);
1091	+	}
1092	+
1093	+	/**
1094	+	* Checks that thread eventually enters the expected blocked thread state.
1095	+	*/
1096	+	void assertThreadBlocks(Thread thread, Thread.State expected) {
1097	+	// always sleep at least 1 ms, with high probability avoiding
1098	+	// transitory states
1099	+	for (long retries = LONG_DELAY_MS * 3 / 4; retries-->0; ) {
1100	+	try { delay(1); }
1101	+	catch (InterruptedException fail) {
1102	+	fail("Unexpected InterruptedException");
1103	+	}
1104	+	Thread.State s = thread.getState();
1105	+	if (s == expected)
1106	+	return;
1107	+	else if (s == Thread.State.TERMINATED)
1108	+	fail("Unexpected thread termination");
1109	+	}
1110	+	fail("timed out waiting for thread to enter thread state " + expected);
1111		}
1112
1113		/**
1114		* Checks that thread does not terminate within the default
1115		* millisecond delay of {@code timeoutMillis()}.
1116	+	* TODO: REMOVEME
1117		*/
1118		void assertThreadStaysAlive(Thread thread) {
1119		assertThreadStaysAlive(thread, timeoutMillis());
#	Line 961 | Line 1121 | public class JSR166TestCase extends Test
1121
1122		/**
1123		* Checks that thread does not terminate within the given millisecond delay.
1124	+	* TODO: REMOVEME
1125		*/
1126		void assertThreadStaysAlive(Thread thread, long millis) {
1127		try {
#	Line 975 | Line 1136 | public class JSR166TestCase extends Test
1136		/**
1137		* Checks that the threads do not terminate within the default
1138		* millisecond delay of {@code timeoutMillis()}.
1139	+	* TODO: REMOVEME
1140		*/
1141		void assertThreadsStayAlive(Thread... threads) {
1142		assertThreadsStayAlive(timeoutMillis(), threads);
#	Line 982 | Line 1144 | public class JSR166TestCase extends Test
1144
1145		/**
1146		* Checks that the threads do not terminate within the given millisecond delay.
1147	+	* TODO: REMOVEME
1148		*/
1149		void assertThreadsStayAlive(long millis, Thread... threads) {
1150		try {
#	Line 1032 | Line 1195 | public class JSR166TestCase extends Test
1195		}
1196
1197		/**
1198	+	* The maximum number of consecutive spurious wakeups we should
1199	+	* tolerate (from APIs like LockSupport.park) before failing a test.
1200	+	*/
1201	+	static final int MAX_SPURIOUS_WAKEUPS = 10;
1202	+
1203	+	/**
1204		* The number of elements to place in collections, arrays, etc.
1205		*/
1206		public static final int SIZE = 20;
#	Line 1135 | Line 1304 | public class JSR166TestCase extends Test
1304		}
1305		public void refresh() {}
1306		public String toString() {
1307	<	List<Permission> ps = new ArrayList<Permission>();
1307	>	List<Permission> ps = new ArrayList<>();
1308		for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
1309		ps.add(e.nextElement());
1310		return "AdjustablePolicy with permissions " + ps;
#	Line 1165 | Line 1334 | public class JSR166TestCase extends Test
1334		* Sleeps until the given time has elapsed.
1335		* Throws AssertionFailedError if interrupted.
1336		*/
1337	<	void sleep(long millis) {
1337	>	static void sleep(long millis) {
1338		try {
1339		delay(millis);
1340		} catch (InterruptedException fail) {
#	Line 1181 | Line 1350 | public class JSR166TestCase extends Test
1350		* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1351		*/
1352		void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1353	<	long startTime = System.nanoTime();
1353	>	long startTime = 0L;
1354		for (;;) {
1355		Thread.State s = thread.getState();
1356		if (s == Thread.State.BLOCKED ||
#	Line 1190 | Line 1359 | public class JSR166TestCase extends Test
1359		return;
1360		else if (s == Thread.State.TERMINATED)
1361		fail("Unexpected thread termination");
1362	+	else if (startTime == 0L)
1363	+	startTime = System.nanoTime();
1364		else if (millisElapsedSince(startTime) > timeoutMillis) {
1365		threadAssertTrue(thread.isAlive());
1366	<	return;
1366	>	fail("timed out waiting for thread to enter wait state");
1367		}
1368		Thread.yield();
1369		}
1370		}
1371
1372		/**
1373	<	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
1374	<	* state: BLOCKED, WAITING, or TIMED_WAITING.
1373	>	* Spin-waits up to the specified number of milliseconds for the given
1374	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING,
1375	>	* and additionally satisfy the given condition.
1376	>	*/
1377	>	void waitForThreadToEnterWaitState(
1378	>	Thread thread, long timeoutMillis, Callable<Boolean> waitingForGodot) {
1379	>	long startTime = 0L;
1380	>	for (;;) {
1381	>	Thread.State s = thread.getState();
1382	>	if (s == Thread.State.BLOCKED ||
1383	>	s == Thread.State.WAITING ||
1384	>	s == Thread.State.TIMED_WAITING) {
1385	>	try {
1386	>	if (waitingForGodot.call())
1387	>	return;
1388	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
1389	>	}
1390	>	else if (s == Thread.State.TERMINATED)
1391	>	fail("Unexpected thread termination");
1392	>	else if (startTime == 0L)
1393	>	startTime = System.nanoTime();
1394	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
1395	>	threadAssertTrue(thread.isAlive());
1396	>	fail("timed out waiting for thread to enter wait state");
1397	>	}
1398	>	Thread.yield();
1399	>	}
1400	>	}
1401	>
1402	>	/**
1403	>	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1404	>	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1405		*/
1406		void waitForThreadToEnterWaitState(Thread thread) {
1407		waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
1408		}
1409
1410		/**
1411	+	* Spin-waits up to LONG_DELAY_MS milliseconds for the given thread to
1412	+	* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING,
1413	+	* and additionally satisfy the given condition.
1414	+	*/
1415	+	void waitForThreadToEnterWaitState(
1416	+	Thread thread, Callable<Boolean> waitingForGodot) {
1417	+	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS, waitingForGodot);
1418	+	}
1419	+
1420	+	/**
1421		* Returns the number of milliseconds since time given by
1422		* startNanoTime, which must have been previously returned from a
1423		* call to {@link System#nanoTime()}.
#	Line 1434 | Line 1645 | public class JSR166TestCase extends Test
1645		return new LatchAwaiter(latch);
1646		}
1647
1648	<	public void await(CountDownLatch latch) {
1648	>	public void await(CountDownLatch latch, long timeoutMillis) {
1649		try {
1650	<	if (!latch.await(LONG_DELAY_MS, MILLISECONDS))
1650	>	if (!latch.await(timeoutMillis, MILLISECONDS))
1651		fail("timed out waiting for CountDownLatch for "
1652	<	+ (LONG_DELAY_MS/1000) + " sec");
1652	>	+ (timeoutMillis/1000) + " sec");
1653		} catch (Throwable fail) {
1654		threadUnexpectedException(fail);
1655		}
1656		}
1657
1658	+	public void await(CountDownLatch latch) {
1659	+	await(latch, LONG_DELAY_MS);
1660	+	}
1661	+
1662		public void await(Semaphore semaphore) {
1663		try {
1664		if (!semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS))
#	Line 1454 | Line 1669 | public class JSR166TestCase extends Test
1669		}
1670		}
1671
1672	+	public void await(CyclicBarrier barrier) {
1673	+	try {
1674	+	barrier.await(LONG_DELAY_MS, MILLISECONDS);
1675	+	} catch (Throwable fail) {
1676	+	threadUnexpectedException(fail);
1677	+	}
1678	+	}
1679	+
1680		//     /**
1681		//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1682		//      */
#	Line 1477 | Line 1700 | public class JSR166TestCase extends Test
1700		public String call() { throw new NullPointerException(); }
1701		}
1702
1480	–	public static class CallableOne implements Callable<Integer> {
1481	–	public Integer call() { return one; }
1482	–	}
1483	–
1484	–	public class ShortRunnable extends CheckedRunnable {
1485	–	protected void realRun() throws Throwable {
1486	–	delay(SHORT_DELAY_MS);
1487	–	}
1488	–	}
1489	–
1490	–	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1491	–	protected void realRun() throws InterruptedException {
1492	–	delay(SHORT_DELAY_MS);
1493	–	}
1494	–	}
1495	–
1496	–	public class SmallRunnable extends CheckedRunnable {
1497	–	protected void realRun() throws Throwable {
1498	–	delay(SMALL_DELAY_MS);
1499	–	}
1500	–	}
1501	–
1703		public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1704		protected void realRun() {
1705		try {
#	Line 1507 | Line 1708 | public class JSR166TestCase extends Test
1708		}
1709		}
1710
1510	–	public class SmallCallable extends CheckedCallable {
1511	–	protected Object realCall() throws InterruptedException {
1512	–	delay(SMALL_DELAY_MS);
1513	–	return Boolean.TRUE;
1514	–	}
1515	–	}
1516	–
1517	–	public class MediumRunnable extends CheckedRunnable {
1518	–	protected void realRun() throws Throwable {
1519	–	delay(MEDIUM_DELAY_MS);
1520	–	}
1521	–	}
1522	–
1523	–	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1524	–	protected void realRun() throws InterruptedException {
1525	–	delay(MEDIUM_DELAY_MS);
1526	–	}
1527	–	}
1528	–
1711		public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1712		return new CheckedRunnable() {
1713		protected void realRun() {
#	Line 1535 | Line 1717 | public class JSR166TestCase extends Test
1717		}};
1718		}
1719
1538	–	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1539	–	protected void realRun() {
1540	–	try {
1541	–	delay(MEDIUM_DELAY_MS);
1542	–	} catch (InterruptedException ok) {}
1543	–	}
1544	–	}
1545	–
1546	–	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1547	–	protected void realRun() {
1548	–	try {
1549	–	delay(LONG_DELAY_MS);
1550	–	} catch (InterruptedException ok) {}
1551	–	}
1552	–	}
1553	–
1720		/**
1721		* For use as ThreadFactory in constructors
1722		*/
#	Line 1564 | Line 1730 | public class JSR166TestCase extends Test
1730		boolean isDone();
1731		}
1732
1567	–	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1568	–	return new TrackedRunnable() {
1569	–	private volatile boolean done = false;
1570	–	public boolean isDone() { return done; }
1571	–	public void run() {
1572	–	try {
1573	–	delay(timeoutMillis);
1574	–	done = true;
1575	–	} catch (InterruptedException ok) {}
1576	–	}
1577	–	};
1578	–	}
1579	–
1580	–	public static class TrackedShortRunnable implements Runnable {
1581	–	public volatile boolean done = false;
1582	–	public void run() {
1583	–	try {
1584	–	delay(SHORT_DELAY_MS);
1585	–	done = true;
1586	–	} catch (InterruptedException ok) {}
1587	–	}
1588	–	}
1589	–
1590	–	public static class TrackedSmallRunnable implements Runnable {
1591	–	public volatile boolean done = false;
1592	–	public void run() {
1593	–	try {
1594	–	delay(SMALL_DELAY_MS);
1595	–	done = true;
1596	–	} catch (InterruptedException ok) {}
1597	–	}
1598	–	}
1599	–
1600	–	public static class TrackedMediumRunnable implements Runnable {
1601	–	public volatile boolean done = false;
1602	–	public void run() {
1603	–	try {
1604	–	delay(MEDIUM_DELAY_MS);
1605	–	done = true;
1606	–	} catch (InterruptedException ok) {}
1607	–	}
1608	–	}
1609	–
1610	–	public static class TrackedLongRunnable implements Runnable {
1611	–	public volatile boolean done = false;
1612	–	public void run() {
1613	–	try {
1614	–	delay(LONG_DELAY_MS);
1615	–	done = true;
1616	–	} catch (InterruptedException ok) {}
1617	–	}
1618	–	}
1619	–
1733		public static class TrackedNoOpRunnable implements Runnable {
1734		public volatile boolean done = false;
1735		public void run() {
#	Line 1624 | Line 1737 | public class JSR166TestCase extends Test
1737		}
1738		}
1739
1627	–	public static class TrackedCallable implements Callable {
1628	–	public volatile boolean done = false;
1629	–	public Object call() {
1630	–	try {
1631	–	delay(SMALL_DELAY_MS);
1632	–	done = true;
1633	–	} catch (InterruptedException ok) {}
1634	–	return Boolean.TRUE;
1635	–	}
1636	–	}
1637	–
1740		/**
1741		* Analog of CheckedRunnable for RecursiveAction
1742		*/
#	Line 1678 | Line 1780 | public class JSR166TestCase extends Test
1780		* A CyclicBarrier that uses timed await and fails with
1781		* AssertionFailedErrors instead of throwing checked exceptions.
1782		*/
1783	<	public class CheckedBarrier extends CyclicBarrier {
1783	>	public static class CheckedBarrier extends CyclicBarrier {
1784		public CheckedBarrier(int parties) { super(parties); }
1785
1786		public int await() {
#	Line 1701 | Line 1803 | public class JSR166TestCase extends Test
1803		assertEquals(0, q.size());
1804		assertNull(q.peek());
1805		assertNull(q.poll());
1806	<	assertNull(q.poll(0, MILLISECONDS));
1806	>	assertNull(q.poll(randomExpiredTimeout(), randomTimeUnit()));
1807		assertEquals(q.toString(), "[]");
1808		assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1809		assertFalse(q.iterator().hasNext());
#	Line 1742 | Line 1844 | public class JSR166TestCase extends Test
1844		}
1845		}
1846
1847	+	void assertImmutable(final Object o) {
1848	+	if (o instanceof Collection) {
1849	+	assertThrows(
1850	+	UnsupportedOperationException.class,
1851	+	new Runnable() { public void run() {
1852	+	((Collection) o).add(null);}});
1853	+	}
1854	+	}
1855	+
1856		@SuppressWarnings("unchecked")
1857		<T> T serialClone(T o) {
1858		try {
1859		ObjectInputStream ois = new ObjectInputStream
1860		(new ByteArrayInputStream(serialBytes(o)));
1861		T clone = (T) ois.readObject();
1862	+	if (o == clone) assertImmutable(o);
1863		assertSame(o.getClass(), clone.getClass());
1864		return clone;
1865		} catch (Throwable fail) {
#	Line 1756 | Line 1868 | public class JSR166TestCase extends Test
1868		}
1869		}
1870
1871	+	/**
1872	+	* A version of serialClone that leaves error handling (for
1873	+	* e.g. NotSerializableException) up to the caller.
1874	+	*/
1875	+	@SuppressWarnings("unchecked")
1876	+	<T> T serialClonePossiblyFailing(T o)
1877	+	throws ReflectiveOperationException, java.io.IOException {
1878	+	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1879	+	ObjectOutputStream oos = new ObjectOutputStream(bos);
1880	+	oos.writeObject(o);
1881	+	oos.flush();
1882	+	oos.close();
1883	+	ObjectInputStream ois = new ObjectInputStream
1884	+	(new ByteArrayInputStream(bos.toByteArray()));
1885	+	T clone = (T) ois.readObject();
1886	+	if (o == clone) assertImmutable(o);
1887	+	assertSame(o.getClass(), clone.getClass());
1888	+	return clone;
1889	+	}
1890	+
1891	+	/**
1892	+	* If o implements Cloneable and has a public clone method,
1893	+	* returns a clone of o, else null.
1894	+	*/
1895	+	@SuppressWarnings("unchecked")
1896	+	<T> T cloneableClone(T o) {
1897	+	if (!(o instanceof Cloneable)) return null;
1898	+	final T clone;
1899	+	try {
1900	+	clone = (T) o.getClass().getMethod("clone").invoke(o);
1901	+	} catch (NoSuchMethodException ok) {
1902	+	return null;
1903	+	} catch (ReflectiveOperationException unexpected) {
1904	+	throw new Error(unexpected);
1905	+	}
1906	+	assertNotSame(o, clone); // not 100% guaranteed by spec
1907	+	assertSame(o.getClass(), clone.getClass());
1908	+	return clone;
1909	+	}
1910	+
1911		public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1912		Runnable... throwingActions) {
1913		for (Runnable throwingAction : throwingActions) {
#	Line 1784 | Line 1936 | public class JSR166TestCase extends Test
1936		} catch (NoSuchElementException success) {}
1937		assertFalse(it.hasNext());
1938		}
1939	+
1940	+	public <T> Callable<T> callableThrowing(final Exception ex) {
1941	+	return new Callable<T>() { public T call() throws Exception { throw ex; }};
1942	+	}
1943	+
1944	+	public Runnable runnableThrowing(final RuntimeException ex) {
1945	+	return new Runnable() { public void run() { throw ex; }};
1946	+	}
1947	+
1948	+	/** A reusable thread pool to be shared by tests. */
1949	+	static final ExecutorService cachedThreadPool =
1950	+	new ThreadPoolExecutor(0, Integer.MAX_VALUE,
1951	+	1000L, MILLISECONDS,
1952	+	new SynchronousQueue<Runnable>());
1953	+
1954	+	/**
1955	+	* Returns maximum number of tasks that can be submitted to given
1956	+	* pool (with bounded queue) before saturation (when submission
1957	+	* throws RejectedExecutionException).
1958	+	*/
1959	+	static final int saturatedSize(ThreadPoolExecutor pool) {
1960	+	BlockingQueue<Runnable> q = pool.getQueue();
1961	+	return pool.getMaximumPoolSize() + q.size() + q.remainingCapacity();
1962	+	}
1963	+
1964	+	static <T> void shuffle(T[] array) {
1965	+	Collections.shuffle(Arrays.asList(array), ThreadLocalRandom.current());
1966	+	}
1967		}

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