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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.107 by jsr166, Sun Apr 21 06:19:58 2013 UTC vs.
Revision 1.142 by jsr166, Tue Sep 8 16:53:43 2015 UTC

#	Line 6 | Line 6
6		* Pat Fisher, Mike Judd.
7		*/
8
9	<	import junit.framework.*;
9	>	import static java.util.concurrent.TimeUnit.MILLISECONDS;
10	>	import static java.util.concurrent.TimeUnit.NANOSECONDS;
11	>
12		import java.io.ByteArrayInputStream;
13		import java.io.ByteArrayOutputStream;
14		import java.io.ObjectInputStream;
15		import java.io.ObjectOutputStream;
16		import java.lang.management.ManagementFactory;
17		import java.lang.management.ThreadInfo;
18	+	import java.lang.reflect.Constructor;
19		import java.lang.reflect.Method;
20	+	import java.lang.reflect.Modifier;
21	+	import java.security.CodeSource;
22	+	import java.security.Permission;
23	+	import java.security.PermissionCollection;
24	+	import java.security.Permissions;
25	+	import java.security.Policy;
26	+	import java.security.ProtectionDomain;
27	+	import java.security.SecurityPermission;
28		import java.util.ArrayList;
29		import java.util.Arrays;
30		import java.util.Date;
31		import java.util.Enumeration;
32	+	import java.util.Iterator;
33		import java.util.List;
34		import java.util.NoSuchElementException;
35		import java.util.PropertyPermission;
36	<	import java.util.concurrent.*;
37	<	import java.util.concurrent.atomic.AtomicBoolean;
36	>	import java.util.concurrent.BlockingQueue;
37	>	import java.util.concurrent.Callable;
38	>	import java.util.concurrent.CountDownLatch;
39	>	import java.util.concurrent.CyclicBarrier;
40	>	import java.util.concurrent.ExecutionException;
41	>	import java.util.concurrent.Executors;
42	>	import java.util.concurrent.ExecutorService;
43	>	import java.util.concurrent.Future;
44	>	import java.util.concurrent.RecursiveAction;
45	>	import java.util.concurrent.RecursiveTask;
46	>	import java.util.concurrent.RejectedExecutionHandler;
47	>	import java.util.concurrent.Semaphore;
48	>	import java.util.concurrent.ThreadFactory;
49	>	import java.util.concurrent.ThreadPoolExecutor;
50	>	import java.util.concurrent.TimeoutException;
51		import java.util.concurrent.atomic.AtomicReference;
52	<	import static java.util.concurrent.TimeUnit.MILLISECONDS;
53	<	import static java.util.concurrent.TimeUnit.NANOSECONDS;
54	<	import java.security.CodeSource;
55	<	import java.security.Permission;
56	<	import java.security.PermissionCollection;
57	<	import java.security.Permissions;
58	<	import java.security.Policy;
34	<	import java.security.ProtectionDomain;
35	<	import java.security.SecurityPermission;
52	>	import java.util.regex.Pattern;
53	>
54	>	import junit.framework.AssertionFailedError;
55	>	import junit.framework.Test;
56	>	import junit.framework.TestCase;
57	>	import junit.framework.TestResult;
58	>	import junit.framework.TestSuite;
59
60		/**
61		* Base class for JSR166 Junit TCK tests.  Defines some constants,
#	Line 115 | Line 138 | public class JSR166TestCase extends Test
138		Boolean.getBoolean("jsr166.expensiveTests");
139
140		/**
141	+	* If true, also run tests that are not part of the official tck
142	+	* because they test unspecified implementation details.
143	+	*/
144	+	protected static final boolean testImplementationDetails =
145	+	Boolean.getBoolean("jsr166.testImplementationDetails");
146	+
147	+	/**
148		* If true, report on stdout all "slow" tests, that is, ones that
149		* take more than profileThreshold milliseconds to execute.
150		*/
#	Line 134 | Line 164 | public class JSR166TestCase extends Test
164		private static final int runsPerTest =
165		Integer.getInteger("jsr166.runsPerTest", 1);
166
167	+	/**
168	+	* The number of repetitions of the test suite (for finding leaks?).
169	+	*/
170	+	private static final int suiteRuns =
171	+	Integer.getInteger("jsr166.suiteRuns", 1);
172	+
173	+	public JSR166TestCase() { super(); }
174	+	public JSR166TestCase(String name) { super(name); }
175	+
176	+	/**
177	+	* A filter for tests to run, matching strings of the form
178	+	* methodName(className), e.g. "testInvokeAll5(ForkJoinPoolTest)"
179	+	* Usefully combined with jsr166.runsPerTest.
180	+	*/
181	+	private static final Pattern methodFilter = methodFilter();
182	+
183	+	private static Pattern methodFilter() {
184	+	String regex = System.getProperty("jsr166.methodFilter");
185	+	return (regex == null) ? null : Pattern.compile(regex);
186	+	}
187	+
188		protected void runTest() throws Throwable {
189	<	for (int i = 0; i < runsPerTest; i++) {
190	<	if (profileTests)
191	<	runTestProfiled();
192	<	else
193	<	super.runTest();
189	>	if (methodFilter == null
190	>	|| methodFilter.matcher(toString()).find()) {
191	>	for (int i = 0; i < runsPerTest; i++) {
192	>	if (profileTests)
193	>	runTestProfiled();
194	>	else
195	>	super.runTest();
196	>	}
197		}
198		}
199
200		protected void runTestProfiled() throws Throwable {
201	+	// Warmup run, notably to trigger all needed classloading.
202	+	super.runTest();
203		long t0 = System.nanoTime();
204		try {
205		super.runTest();
206		} finally {
207	<	long elapsedMillis =
152	<	(System.nanoTime() - t0) / (1000L * 1000L);
207	>	long elapsedMillis = millisElapsedSince(t0);
208		if (elapsedMillis >= profileThreshold)
209		System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
210		}
#	Line 157 | Line 212 | public class JSR166TestCase extends Test
212
213		/**
214		* Runs all JSR166 unit tests using junit.textui.TestRunner.
160	–	* Optional command line arg provides the number of iterations to
161	–	* repeat running the tests.
215		*/
216		public static void main(String[] args) {
217	+	main(suite(), args);
218	+	}
219	+
220	+	/**
221	+	* Runs all unit tests in the given test suite.
222	+	* Actual behavior influenced by jsr166.* system properties.
223	+	*/
224	+	static void main(Test suite, String[] args) {
225		if (useSecurityManager) {
226		System.err.println("Setting a permissive security manager");
227		Policy.setPolicy(permissivePolicy());
228		System.setSecurityManager(new SecurityManager());
229		}
230	<	int iters = (args.length == 0) ? 1 : Integer.parseInt(args[0]);
231	<
232	<	Test s = suite();
233	<	for (int i = 0; i < iters; ++i) {
173	<	junit.textui.TestRunner.run(s);
230	>	for (int i = 0; i < suiteRuns; i++) {
231	>	TestResult result = junit.textui.TestRunner.run(suite);
232	>	if (!result.wasSuccessful())
233	>	System.exit(1);
234		System.gc();
235		System.runFinalization();
236		}
177	–	System.exit(0);
237		}
238
239		public static TestSuite newTestSuite(Object... suiteOrClasses) {
#	Line 205 | Line 264 | public class JSR166TestCase extends Test
264		}
265
266		public static final double JAVA_CLASS_VERSION;
267	+	public static final String JAVA_SPECIFICATION_VERSION;
268		static {
269		try {
270		JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
271		new java.security.PrivilegedAction<Double>() {
272		public Double run() {
273		return Double.valueOf(System.getProperty("java.class.version"));}});
274	+	JAVA_SPECIFICATION_VERSION = java.security.AccessController.doPrivileged(
275	+	new java.security.PrivilegedAction<String>() {
276	+	public String run() {
277	+	return System.getProperty("java.specification.version");}});
278		} catch (Throwable t) {
279		throw new Error(t);
280		}
#	Line 219 | Line 283 | public class JSR166TestCase extends Test
283		public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
284		public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
285		public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
286	+	public static boolean atLeastJava9() {
287	+	return JAVA_CLASS_VERSION >= 53.0
288	+	// As of 2015-09, java9 still uses 52.0 class file version
289	+	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?(9|[0-9][0-9])$");
290	+	}
291	+	public static boolean atLeastJava10() {
292	+	return JAVA_CLASS_VERSION >= 54.0
293	+	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?[0-9][0-9]$");
294	+	}
295
296		/**
297		* Collects all JSR166 unit tests as one suite.
#	Line 294 | Line 367 | public class JSR166TestCase extends Test
367		// Java8+ test classes
368		if (atLeastJava8()) {
369		String[] java8TestClassNames = {
370	+	"Atomic8Test",
371		"CompletableFutureTest",
372		"ConcurrentHashMap8Test",
373		"CountedCompleterTest",
374		"DoubleAccumulatorTest",
375		"DoubleAdderTest",
376		"ForkJoinPool8Test",
377	+	"ForkJoinTask8Test",
378		"LongAccumulatorTest",
379		"LongAdderTest",
380	+	"SplittableRandomTest",
381		"StampedLockTest",
382	+	"SubmissionPublisherTest",
383	+	"ThreadLocalRandom8Test",
384		};
385		addNamedTestClasses(suite, java8TestClassNames);
386		}
387
388	+	// Java9+ test classes
389	+	if (atLeastJava9()) {
390	+	String[] java9TestClassNames = {
391	+	// Currently empty, but expecting varhandle tests
392	+	};
393	+	addNamedTestClasses(suite, java9TestClassNames);
394	+	}
395	+
396		return suite;
397		}
398
399	+	/** Returns list of junit-style test method names in given class. */
400	+	public static ArrayList<String> testMethodNames(Class<?> testClass) {
401	+	Method[] methods = testClass.getDeclaredMethods();
402	+	ArrayList<String> names = new ArrayList<String>(methods.length);
403	+	for (Method method : methods) {
404	+	if (method.getName().startsWith("test")
405	+	&& Modifier.isPublic(method.getModifiers())
406	+	// method.getParameterCount() requires jdk8+
407	+	&& method.getParameterTypes().length == 0) {
408	+	names.add(method.getName());
409	+	}
410	+	}
411	+	return names;
412	+	}
413	+
414	+	/**
415	+	* Returns junit-style testSuite for the given test class, but
416	+	* parameterized by passing extra data to each test.
417	+	*/
418	+	public static <ExtraData> Test parameterizedTestSuite
419	+	(Class<? extends JSR166TestCase> testClass,
420	+	Class<ExtraData> dataClass,
421	+	ExtraData data) {
422	+	try {
423	+	TestSuite suite = new TestSuite();
424	+	Constructor c =
425	+	testClass.getDeclaredConstructor(dataClass, String.class);
426	+	for (String methodName : testMethodNames(testClass))
427	+	suite.addTest((Test) c.newInstance(data, methodName));
428	+	return suite;
429	+	} catch (Exception e) {
430	+	throw new Error(e);
431	+	}
432	+	}
433	+
434	+	/**
435	+	* Returns junit-style testSuite for the jdk8 extension of the
436	+	* given test class, but parameterized by passing extra data to
437	+	* each test.  Uses reflection to allow compilation in jdk7.
438	+	*/
439	+	public static <ExtraData> Test jdk8ParameterizedTestSuite
440	+	(Class<? extends JSR166TestCase> testClass,
441	+	Class<ExtraData> dataClass,
442	+	ExtraData data) {
443	+	if (atLeastJava8()) {
444	+	String name = testClass.getName();
445	+	String name8 = name.replaceAll("Test$", "8Test");
446	+	if (name.equals(name8)) throw new Error(name);
447	+	try {
448	+	return (Test)
449	+	Class.forName(name8)
450	+	.getMethod("testSuite", new Class[] { dataClass })
451	+	.invoke(null, data);
452	+	} catch (Exception e) {
453	+	throw new Error(e);
454	+	}
455	+	} else {
456	+	return new TestSuite();
457	+	}
458	+
459	+	}
460	+
461	+	// Delays for timing-dependent tests, in milliseconds.
462
463		public static long SHORT_DELAY_MS;
464		public static long SMALL_DELAY_MS;
465		public static long MEDIUM_DELAY_MS;
466		public static long LONG_DELAY_MS;
467
319	–
468		/**
469		* Returns the shortest timed delay. This could
470		* be reimplemented to use for example a Property.
#	Line 344 | Line 492 | public class JSR166TestCase extends Test
492		}
493
494		/**
495	<	* Returns a new Date instance representing a time delayMillis
496	<	* milliseconds in the future.
495	>	* Returns a new Date instance representing a time at least
496	>	* delayMillis milliseconds in the future.
497		*/
498		Date delayedDate(long delayMillis) {
499	<	return new Date(System.currentTimeMillis() + delayMillis);
499	>	// Add 1 because currentTimeMillis is known to round into the past.
500	>	return new Date(System.currentTimeMillis() + delayMillis + 1);
501		}
502
503		/**
#	Line 404 | Line 553 | public class JSR166TestCase extends Test
553		}
554
555		/**
556	<	* Find missing try { ... } finally { joinPool(e); }
556	>	* Finds missing try { ... } finally { joinPool(e); }
557		*/
558		void checkForkJoinPoolThreadLeaks() throws InterruptedException {
559		Thread[] survivors = new Thread[5];
#	Line 416 | Line 565 | public class JSR166TestCase extends Test
565		// give thread some time to terminate
566		thread.join(LONG_DELAY_MS);
567		if (!thread.isAlive()) continue;
419	–	thread.stop();
568		throw new AssertionFailedError
569		(String.format("Found leaked ForkJoinPool thread test=%s thread=%s%n",
570		toString(), name));
#	Line 502 | Line 650 | public class JSR166TestCase extends Test
650		public void threadAssertEquals(Object x, Object y) {
651		try {
652		assertEquals(x, y);
653	<	} catch (AssertionFailedError t) {
654	<	threadRecordFailure(t);
655	<	throw t;
656	<	} catch (Throwable t) {
657	<	threadUnexpectedException(t);
653	>	} catch (AssertionFailedError fail) {
654	>	threadRecordFailure(fail);
655	>	throw fail;
656	>	} catch (Throwable fail) {
657	>	threadUnexpectedException(fail);
658		}
659		}
660
#	Line 518 | Line 666 | public class JSR166TestCase extends Test
666		public void threadAssertSame(Object x, Object y) {
667		try {
668		assertSame(x, y);
669	<	} catch (AssertionFailedError t) {
670	<	threadRecordFailure(t);
671	<	throw t;
669	>	} catch (AssertionFailedError fail) {
670	>	threadRecordFailure(fail);
671	>	throw fail;
672		}
673		}
674
#	Line 582 | Line 730 | public class JSR166TestCase extends Test
730		/**
731		* Waits out termination of a thread pool or fails doing so.
732		*/
733	<	void joinPool(ExecutorService exec) {
733	>	void joinPool(ExecutorService pool) {
734		try {
735	<	exec.shutdown();
736	<	assertTrue("ExecutorService did not terminate in a timely manner",
737	<	exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS));
735	>	pool.shutdown();
736	>	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS))
737	>	fail("ExecutorService " + pool +
738	>	" did not terminate in a timely manner");
739		} catch (SecurityException ok) {
740		// Allowed in case test doesn't have privs
741	<	} catch (InterruptedException ie) {
741	>	} catch (InterruptedException fail) {
742		fail("Unexpected InterruptedException");
743		}
744		}
745
746	+	/** Like Runnable, but with the freedom to throw anything */
747	+	interface Action { public void run() throws Throwable; }
748	+
749	+	/**
750	+	* Runs all the given actions in parallel, failing if any fail.
751	+	* Useful for running multiple variants of tests that are
752	+	* necessarily individually slow because they must block.
753	+	*/
754	+	void testInParallel(Action ... actions) {
755	+	ExecutorService pool = Executors.newCachedThreadPool();
756	+	try {
757	+	ArrayList<Future<?>> futures = new ArrayList<>(actions.length);
758	+	for (final Action action : actions)
759	+	futures.add(pool.submit(new CheckedRunnable() {
760	+	public void realRun() throws Throwable { action.run();}}));
761	+	for (Future<?> future : futures)
762	+	try {
763	+	assertNull(future.get(LONG_DELAY_MS, MILLISECONDS));
764	+	} catch (ExecutionException ex) {
765	+	threadUnexpectedException(ex.getCause());
766	+	} catch (Exception ex) {
767	+	threadUnexpectedException(ex);
768	+	}
769	+	} finally {
770	+	joinPool(pool);
771	+	}
772	+	}
773	+
774		/**
775		* A debugging tool to print all stack traces, as jstack does.
776		*/
#	Line 620 | Line 797 | public class JSR166TestCase extends Test
797		// No need to optimize the failing case via Thread.join.
798		delay(millis);
799		assertTrue(thread.isAlive());
800	<	} catch (InterruptedException ie) {
800	>	} catch (InterruptedException fail) {
801		fail("Unexpected InterruptedException");
802		}
803		}
#	Line 642 | Line 819 | public class JSR166TestCase extends Test
819		delay(millis);
820		for (Thread thread : threads)
821		assertTrue(thread.isAlive());
822	<	} catch (InterruptedException ie) {
822	>	} catch (InterruptedException fail) {
823		fail("Unexpected InterruptedException");
824		}
825		}
#	Line 664 | Line 841 | public class JSR166TestCase extends Test
841		future.get(timeoutMillis, MILLISECONDS);
842		shouldThrow();
843		} catch (TimeoutException success) {
844	<	} catch (Exception e) {
845	<	threadUnexpectedException(e);
844	>	} catch (Exception fail) {
845	>	threadUnexpectedException(fail);
846		} finally { future.cancel(true); }
847		assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
848		}
#	Line 709 | Line 886 | public class JSR166TestCase extends Test
886		public static final Integer m6  = new Integer(-6);
887		public static final Integer m10 = new Integer(-10);
888
712	–
889		/**
890		* Runs Runnable r with a security policy that permits precisely
891		* the specified permissions.  If there is no current security
#	Line 822 | Line 998 | public class JSR166TestCase extends Test
998		void sleep(long millis) {
999		try {
1000		delay(millis);
1001	<	} catch (InterruptedException ie) {
1001	>	} catch (InterruptedException fail) {
1002		AssertionFailedError afe =
1003		new AssertionFailedError("Unexpected InterruptedException");
1004	<	afe.initCause(ie);
1004	>	afe.initCause(fail);
1005		throw afe;
1006		}
1007		}
#	Line 863 | Line 1039 | public class JSR166TestCase extends Test
1039		/**
1040		* Returns the number of milliseconds since time given by
1041		* startNanoTime, which must have been previously returned from a
1042	<	* call to {@link System.nanoTime()}.
1042	>	* call to {@link System#nanoTime()}.
1043		*/
1044	<	long millisElapsedSince(long startNanoTime) {
1044	>	static long millisElapsedSince(long startNanoTime) {
1045		return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
1046		}
1047
1048	+	//     void assertTerminatesPromptly(long timeoutMillis, Runnable r) {
1049	+	//         long startTime = System.nanoTime();
1050	+	//         try {
1051	+	//             r.run();
1052	+	//         } catch (Throwable fail) { threadUnexpectedException(fail); }
1053	+	//         if (millisElapsedSince(startTime) > timeoutMillis/2)
1054	+	//             throw new AssertionFailedError("did not return promptly");
1055	+	//     }
1056	+
1057	+	//     void assertTerminatesPromptly(Runnable r) {
1058	+	//         assertTerminatesPromptly(LONG_DELAY_MS/2, r);
1059	+	//     }
1060	+
1061	+	/**
1062	+	* Checks that timed f.get() returns the expected value, and does not
1063	+	* wait for the timeout to elapse before returning.
1064	+	*/
1065	+	<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
1066	+	long startTime = System.nanoTime();
1067	+	try {
1068	+	assertEquals(expectedValue, f.get(timeoutMillis, MILLISECONDS));
1069	+	} catch (Throwable fail) { threadUnexpectedException(fail); }
1070	+	if (millisElapsedSince(startTime) > timeoutMillis/2)
1071	+	throw new AssertionFailedError("timed get did not return promptly");
1072	+	}
1073	+
1074	+	<T> void checkTimedGet(Future<T> f, T expectedValue) {
1075	+	checkTimedGet(f, expectedValue, LONG_DELAY_MS);
1076	+	}
1077	+
1078		/**
1079		* Returns a new started daemon Thread running the given runnable.
1080		*/
#	Line 887 | Line 1093 | public class JSR166TestCase extends Test
1093		void awaitTermination(Thread t, long timeoutMillis) {
1094		try {
1095		t.join(timeoutMillis);
1096	<	} catch (InterruptedException ie) {
1097	<	threadUnexpectedException(ie);
1096	>	} catch (InterruptedException fail) {
1097	>	threadUnexpectedException(fail);
1098		} finally {
1099		if (t.getState() != Thread.State.TERMINATED) {
1100		t.interrupt();
#	Line 914 | Line 1120 | public class JSR166TestCase extends Test
1120		public final void run() {
1121		try {
1122		realRun();
1123	<	} catch (Throwable t) {
1124	<	threadUnexpectedException(t);
1123	>	} catch (Throwable fail) {
1124	>	threadUnexpectedException(fail);
1125		}
1126		}
1127		}
#	Line 969 | Line 1175 | public class JSR166TestCase extends Test
1175		threadShouldThrow("InterruptedException");
1176		} catch (InterruptedException success) {
1177		threadAssertFalse(Thread.interrupted());
1178	<	} catch (Throwable t) {
1179	<	threadUnexpectedException(t);
1178	>	} catch (Throwable fail) {
1179	>	threadUnexpectedException(fail);
1180		}
1181		}
1182		}
#	Line 981 | Line 1187 | public class JSR166TestCase extends Test
1187		public final T call() {
1188		try {
1189		return realCall();
1190	<	} catch (Throwable t) {
1191	<	threadUnexpectedException(t);
1190	>	} catch (Throwable fail) {
1191	>	threadUnexpectedException(fail);
1192		return null;
1193		}
1194		}
#	Line 999 | Line 1205 | public class JSR166TestCase extends Test
1205		return result;
1206		} catch (InterruptedException success) {
1207		threadAssertFalse(Thread.interrupted());
1208	<	} catch (Throwable t) {
1209	<	threadUnexpectedException(t);
1208	>	} catch (Throwable fail) {
1209	>	threadUnexpectedException(fail);
1210		}
1211		return null;
1212		}
#	Line 1040 | Line 1246 | public class JSR166TestCase extends Test
1246		public void await(CountDownLatch latch) {
1247		try {
1248		assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1249	<	} catch (Throwable t) {
1250	<	threadUnexpectedException(t);
1249	>	} catch (Throwable fail) {
1250	>	threadUnexpectedException(fail);
1251		}
1252		}
1253
1254		public void await(Semaphore semaphore) {
1255		try {
1256		assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1257	<	} catch (Throwable t) {
1258	<	threadUnexpectedException(t);
1257	>	} catch (Throwable fail) {
1258	>	threadUnexpectedException(fail);
1259		}
1260		}
1261
#	Line 1240 | Line 1446 | public class JSR166TestCase extends Test
1446		public abstract class CheckedRecursiveAction extends RecursiveAction {
1447		protected abstract void realCompute() throws Throwable;
1448
1449	<	public final void compute() {
1449	>	@Override protected final void compute() {
1450		try {
1451		realCompute();
1452	<	} catch (Throwable t) {
1453	<	threadUnexpectedException(t);
1452	>	} catch (Throwable fail) {
1453	>	threadUnexpectedException(fail);
1454		}
1455		}
1456		}
#	Line 1255 | Line 1461 | public class JSR166TestCase extends Test
1461		public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1462		protected abstract T realCompute() throws Throwable;
1463
1464	<	public final T compute() {
1464	>	@Override protected final T compute() {
1465		try {
1466		return realCompute();
1467	<	} catch (Throwable t) {
1468	<	threadUnexpectedException(t);
1467	>	} catch (Throwable fail) {
1468	>	threadUnexpectedException(fail);
1469		return null;
1470		}
1471		}
#	Line 1283 | Line 1489 | public class JSR166TestCase extends Test
1489		public int await() {
1490		try {
1491		return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1492	<	} catch (TimeoutException e) {
1492	>	} catch (TimeoutException timedOut) {
1493		throw new AssertionFailedError("timed out");
1494	<	} catch (Exception e) {
1494	>	} catch (Exception fail) {
1495		AssertionFailedError afe =
1496	<	new AssertionFailedError("Unexpected exception: " + e);
1497	<	afe.initCause(e);
1496	>	new AssertionFailedError("Unexpected exception: " + fail);
1497	>	afe.initCause(fail);
1498		throw afe;
1499		}
1500		}
#	Line 1316 | Line 1522 | public class JSR166TestCase extends Test
1522		q.remove();
1523		shouldThrow();
1524		} catch (NoSuchElementException success) {}
1525	<	} catch (InterruptedException ie) {
1320	<	threadUnexpectedException(ie);
1321	<	}
1525	>	} catch (InterruptedException fail) { threadUnexpectedException(fail); }
1526		}
1527
1528		void assertSerialEquals(Object x, Object y) {
#	Line 1337 | Line 1541 | public class JSR166TestCase extends Test
1541		oos.flush();
1542		oos.close();
1543		return bos.toByteArray();
1544	<	} catch (Throwable t) {
1545	<	threadUnexpectedException(t);
1544	>	} catch (Throwable fail) {
1545	>	threadUnexpectedException(fail);
1546		return new byte[0];
1547		}
1548		}
#	Line 1351 | Line 1555 | public class JSR166TestCase extends Test
1555		T clone = (T) ois.readObject();
1556		assertSame(o.getClass(), clone.getClass());
1557		return clone;
1558	<	} catch (Throwable t) {
1559	<	threadUnexpectedException(t);
1558	>	} catch (Throwable fail) {
1559	>	threadUnexpectedException(fail);
1560		return null;
1561		}
1562		}
#	Line 1377 | Line 1581 | public class JSR166TestCase extends Test
1581		shouldThrow(expectedExceptionClass.getName());
1582		}
1583		}
1584	+
1585	+	public void assertIteratorExhausted(Iterator<?> it) {
1586	+	try {
1587	+	it.next();
1588	+	shouldThrow();
1589	+	} catch (NoSuchElementException success) {}
1590	+	assertFalse(it.hasNext());
1591	+	}
1592		}

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