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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.108 by jsr166, Mon Jun 3 18:20:05 2013 UTC vs.
Revision 1.135 by jsr166, Fri Jul 3 05:48:30 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.ExecutorService;
41	>	import java.util.concurrent.Future;
42	>	import java.util.concurrent.RecursiveAction;
43	>	import java.util.concurrent.RecursiveTask;
44	>	import java.util.concurrent.RejectedExecutionHandler;
45	>	import java.util.concurrent.Semaphore;
46	>	import java.util.concurrent.ThreadFactory;
47	>	import java.util.concurrent.ThreadPoolExecutor;
48	>	import java.util.concurrent.TimeoutException;
49		import java.util.concurrent.atomic.AtomicReference;
50	<	import static java.util.concurrent.TimeUnit.MILLISECONDS;
51	<	import static java.util.concurrent.TimeUnit.NANOSECONDS;
52	<	import java.security.CodeSource;
53	<	import java.security.Permission;
54	<	import java.security.PermissionCollection;
55	<	import java.security.Permissions;
56	<	import java.security.Policy;
34	<	import java.security.ProtectionDomain;
35	<	import java.security.SecurityPermission;
50	>	import java.util.regex.Pattern;
51	>
52	>	import junit.framework.AssertionFailedError;
53	>	import junit.framework.Test;
54	>	import junit.framework.TestCase;
55	>	import junit.framework.TestResult;
56	>	import junit.framework.TestSuite;
57
58		/**
59		* Base class for JSR166 Junit TCK tests.  Defines some constants,
#	Line 115 | Line 136 | public class JSR166TestCase extends Test
136		Boolean.getBoolean("jsr166.expensiveTests");
137
138		/**
139	+	* If true, also run tests that are not part of the official tck
140	+	* because they test unspecified implementation details.
141	+	*/
142	+	protected static final boolean testImplementationDetails =
143	+	Boolean.getBoolean("jsr166.testImplementationDetails");
144	+
145	+	/**
146		* If true, report on stdout all "slow" tests, that is, ones that
147		* take more than profileThreshold milliseconds to execute.
148		*/
#	Line 134 | Line 162 | public class JSR166TestCase extends Test
162		private static final int runsPerTest =
163		Integer.getInteger("jsr166.runsPerTest", 1);
164
165	+	/**
166	+	* The number of repetitions of the test suite (for finding leaks?).
167	+	*/
168	+	private static final int suiteRuns =
169	+	Integer.getInteger("jsr166.suiteRuns", 1);
170	+
171	+	public JSR166TestCase() { super(); }
172	+	public JSR166TestCase(String name) { super(name); }
173	+
174	+	/**
175	+	* A filter for tests to run, matching strings of the form
176	+	* methodName(className), e.g. "testInvokeAll5(ForkJoinPoolTest)"
177	+	* Usefully combined with jsr166.runsPerTest.
178	+	*/
179	+	private static final Pattern methodFilter = methodFilter();
180	+
181	+	private static Pattern methodFilter() {
182	+	String regex = System.getProperty("jsr166.methodFilter");
183	+	return (regex == null) ? null : Pattern.compile(regex);
184	+	}
185	+
186		protected void runTest() throws Throwable {
187	<	for (int i = 0; i < runsPerTest; i++) {
188	<	if (profileTests)
189	<	runTestProfiled();
190	<	else
191	<	super.runTest();
187	>	if (methodFilter == null
188	>	|| methodFilter.matcher(toString()).find()) {
189	>	for (int i = 0; i < runsPerTest; i++) {
190	>	if (profileTests)
191	>	runTestProfiled();
192	>	else
193	>	super.runTest();
194	>	}
195		}
196		}
197
198		protected void runTestProfiled() throws Throwable {
199	+	// Warmup run, notably to trigger all needed classloading.
200	+	super.runTest();
201		long t0 = System.nanoTime();
202		try {
203		super.runTest();
204		} finally {
205	<	long elapsedMillis =
152	<	(System.nanoTime() - t0) / (1000L * 1000L);
205	>	long elapsedMillis = millisElapsedSince(t0);
206		if (elapsedMillis >= profileThreshold)
207		System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
208		}
#	Line 157 | Line 210 | public class JSR166TestCase extends Test
210
211		/**
212		* 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.
213		*/
214		public static void main(String[] args) {
215	+	main(suite(), args);
216	+	}
217	+
218	+	/**
219	+	* Runs all unit tests in the given test suite.
220	+	* Actual behavior influenced by jsr166.* system properties.
221	+	*/
222	+	static void main(Test suite, String[] args) {
223		if (useSecurityManager) {
224		System.err.println("Setting a permissive security manager");
225		Policy.setPolicy(permissivePolicy());
226		System.setSecurityManager(new SecurityManager());
227		}
228	<	int iters = (args.length == 0) ? 1 : Integer.parseInt(args[0]);
229	<
230	<	Test s = suite();
231	<	for (int i = 0; i < iters; ++i) {
173	<	junit.textui.TestRunner.run(s);
228	>	for (int i = 0; i < suiteRuns; i++) {
229	>	TestResult result = junit.textui.TestRunner.run(suite);
230	>	if (!result.wasSuccessful())
231	>	System.exit(1);
232		System.gc();
233		System.runFinalization();
234		}
177	–	System.exit(0);
235		}
236
237		public static TestSuite newTestSuite(Object... suiteOrClasses) {
#	Line 205 | Line 262 | public class JSR166TestCase extends Test
262		}
263
264		public static final double JAVA_CLASS_VERSION;
265	+	public static final String JAVA_SPECIFICATION_VERSION;
266		static {
267		try {
268		JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
269		new java.security.PrivilegedAction<Double>() {
270		public Double run() {
271		return Double.valueOf(System.getProperty("java.class.version"));}});
272	+	JAVA_SPECIFICATION_VERSION = java.security.AccessController.doPrivileged(
273	+	new java.security.PrivilegedAction<String>() {
274	+	public String run() {
275	+	return System.getProperty("java.specification.version");}});
276		} catch (Throwable t) {
277		throw new Error(t);
278		}
#	Line 219 | Line 281 | public class JSR166TestCase extends Test
281		public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
282		public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
283		public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
284	+	public static boolean atLeastJava9() { return JAVA_CLASS_VERSION >= 53.0; }
285
286		/**
287		* Collects all JSR166 unit tests as one suite.
#	Line 294 | Line 357 | public class JSR166TestCase extends Test
357		// Java8+ test classes
358		if (atLeastJava8()) {
359		String[] java8TestClassNames = {
360	+	"Atomic8Test",
361		"CompletableFutureTest",
362		"ConcurrentHashMap8Test",
363		"CountedCompleterTest",
364		"DoubleAccumulatorTest",
365		"DoubleAdderTest",
366		"ForkJoinPool8Test",
367	+	"ForkJoinTask8Test",
368		"LongAccumulatorTest",
369		"LongAdderTest",
370	+	"SplittableRandomTest",
371		"StampedLockTest",
372	+	"ThreadLocalRandom8Test",
373		};
374		addNamedTestClasses(suite, java8TestClassNames);
375		}
376
377	+	// Java9+ test classes
378	+	if (atLeastJava9()) {
379	+	String[] java9TestClassNames = {
380	+	"ThreadPoolExecutor9Test",
381	+	};
382	+	addNamedTestClasses(suite, java9TestClassNames);
383	+	}
384	+
385		return suite;
386		}
387
388	+	/** Returns list of junit-style test method names in given class. */
389	+	public static ArrayList<String> testMethodNames(Class<?> testClass) {
390	+	Method[] methods = testClass.getDeclaredMethods();
391	+	ArrayList<String> names = new ArrayList<String>(methods.length);
392	+	for (Method method : methods) {
393	+	if (method.getName().startsWith("test")
394	+	&& Modifier.isPublic(method.getModifiers())
395	+	// method.getParameterCount() requires jdk8+
396	+	&& method.getParameterTypes().length == 0) {
397	+	names.add(method.getName());
398	+	}
399	+	}
400	+	return names;
401	+	}
402	+
403	+	/**
404	+	* Returns junit-style testSuite for the given test class, but
405	+	* parameterized by passing extra data to each test.
406	+	*/
407	+	public static <ExtraData> Test parameterizedTestSuite
408	+	(Class<? extends JSR166TestCase> testClass,
409	+	Class<ExtraData> dataClass,
410	+	ExtraData data) {
411	+	try {
412	+	TestSuite suite = new TestSuite();
413	+	Constructor c =
414	+	testClass.getDeclaredConstructor(dataClass, String.class);
415	+	for (String methodName : testMethodNames(testClass))
416	+	suite.addTest((Test) c.newInstance(data, methodName));
417	+	return suite;
418	+	} catch (Exception e) {
419	+	throw new Error(e);
420	+	}
421	+	}
422	+
423	+	/**
424	+	* Returns junit-style testSuite for the jdk8 extension of the
425	+	* given test class, but parameterized by passing extra data to
426	+	* each test.  Uses reflection to allow compilation in jdk7.
427	+	*/
428	+	public static <ExtraData> Test jdk8ParameterizedTestSuite
429	+	(Class<? extends JSR166TestCase> testClass,
430	+	Class<ExtraData> dataClass,
431	+	ExtraData data) {
432	+	if (atLeastJava8()) {
433	+	String name = testClass.getName();
434	+	String name8 = name.replaceAll("Test$", "8Test");
435	+	if (name.equals(name8)) throw new Error(name);
436	+	try {
437	+	return (Test)
438	+	Class.forName(name8)
439	+	.getMethod("testSuite", new Class[] { dataClass })
440	+	.invoke(null, data);
441	+	} catch (Exception e) {
442	+	throw new Error(e);
443	+	}
444	+	} else {
445	+	return new TestSuite();
446	+	}
447	+
448	+	}
449	+
450	+	// Delays for timing-dependent tests, in milliseconds.
451
452		public static long SHORT_DELAY_MS;
453		public static long SMALL_DELAY_MS;
454		public static long MEDIUM_DELAY_MS;
455		public static long LONG_DELAY_MS;
456
319	–
457		/**
458		* Returns the shortest timed delay. This could
459		* be reimplemented to use for example a Property.
#	Line 344 | Line 481 | public class JSR166TestCase extends Test
481		}
482
483		/**
484	<	* Returns a new Date instance representing a time delayMillis
485	<	* milliseconds in the future.
484	>	* Returns a new Date instance representing a time at least
485	>	* delayMillis milliseconds in the future.
486		*/
487		Date delayedDate(long delayMillis) {
488	<	return new Date(System.currentTimeMillis() + delayMillis);
488	>	// Add 1 because currentTimeMillis is known to round into the past.
489	>	return new Date(System.currentTimeMillis() + delayMillis + 1);
490		}
491
492		/**
#	Line 404 | Line 542 | public class JSR166TestCase extends Test
542		}
543
544		/**
545	<	* Find missing try { ... } finally { joinPool(e); }
545	>	* Finds missing try { ... } finally { joinPool(e); }
546		*/
547		void checkForkJoinPoolThreadLeaks() throws InterruptedException {
548		Thread[] survivors = new Thread[5];
#	Line 416 | Line 554 | public class JSR166TestCase extends Test
554		// give thread some time to terminate
555		thread.join(LONG_DELAY_MS);
556		if (!thread.isAlive()) continue;
419	–	thread.stop();
557		throw new AssertionFailedError
558		(String.format("Found leaked ForkJoinPool thread test=%s thread=%s%n",
559		toString(), name));
#	Line 502 | Line 639 | public class JSR166TestCase extends Test
639		public void threadAssertEquals(Object x, Object y) {
640		try {
641		assertEquals(x, y);
642	<	} catch (AssertionFailedError t) {
643	<	threadRecordFailure(t);
644	<	throw t;
645	<	} catch (Throwable t) {
646	<	threadUnexpectedException(t);
642	>	} catch (AssertionFailedError fail) {
643	>	threadRecordFailure(fail);
644	>	throw fail;
645	>	} catch (Throwable fail) {
646	>	threadUnexpectedException(fail);
647		}
648		}
649
#	Line 518 | Line 655 | public class JSR166TestCase extends Test
655		public void threadAssertSame(Object x, Object y) {
656		try {
657		assertSame(x, y);
658	<	} catch (AssertionFailedError t) {
659	<	threadRecordFailure(t);
660	<	throw t;
658	>	} catch (AssertionFailedError fail) {
659	>	threadRecordFailure(fail);
660	>	throw fail;
661		}
662		}
663
#	Line 585 | Line 722 | public class JSR166TestCase extends Test
722		void joinPool(ExecutorService exec) {
723		try {
724		exec.shutdown();
725	<	assertTrue("ExecutorService did not terminate in a timely manner",
726	<	exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS));
725	>	if (!exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS))
726	>	fail("ExecutorService " + exec +
727	>	" did not terminate in a timely manner");
728		} catch (SecurityException ok) {
729		// Allowed in case test doesn't have privs
730	<	} catch (InterruptedException ie) {
730	>	} catch (InterruptedException fail) {
731		fail("Unexpected InterruptedException");
732		}
733		}
#	Line 620 | Line 758 | public class JSR166TestCase extends Test
758		// No need to optimize the failing case via Thread.join.
759		delay(millis);
760		assertTrue(thread.isAlive());
761	<	} catch (InterruptedException ie) {
761	>	} catch (InterruptedException fail) {
762		fail("Unexpected InterruptedException");
763		}
764		}
#	Line 642 | Line 780 | public class JSR166TestCase extends Test
780		delay(millis);
781		for (Thread thread : threads)
782		assertTrue(thread.isAlive());
783	<	} catch (InterruptedException ie) {
783	>	} catch (InterruptedException fail) {
784		fail("Unexpected InterruptedException");
785		}
786		}
#	Line 664 | Line 802 | public class JSR166TestCase extends Test
802		future.get(timeoutMillis, MILLISECONDS);
803		shouldThrow();
804		} catch (TimeoutException success) {
805	<	} catch (Exception e) {
806	<	threadUnexpectedException(e);
805	>	} catch (Exception fail) {
806	>	threadUnexpectedException(fail);
807		} finally { future.cancel(true); }
808		assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
809		}
#	Line 709 | Line 847 | public class JSR166TestCase extends Test
847		public static final Integer m6  = new Integer(-6);
848		public static final Integer m10 = new Integer(-10);
849
712	–
850		/**
851		* Runs Runnable r with a security policy that permits precisely
852		* the specified permissions.  If there is no current security
#	Line 822 | Line 959 | public class JSR166TestCase extends Test
959		void sleep(long millis) {
960		try {
961		delay(millis);
962	<	} catch (InterruptedException ie) {
962	>	} catch (InterruptedException fail) {
963		AssertionFailedError afe =
964		new AssertionFailedError("Unexpected InterruptedException");
965	<	afe.initCause(ie);
965	>	afe.initCause(fail);
966		throw afe;
967		}
968		}
#	Line 863 | Line 1000 | public class JSR166TestCase extends Test
1000		/**
1001		* Returns the number of milliseconds since time given by
1002		* startNanoTime, which must have been previously returned from a
1003	<	* call to {@link System.nanoTime()}.
1003	>	* call to {@link System#nanoTime()}.
1004		*/
1005	<	long millisElapsedSince(long startNanoTime) {
1005	>	static long millisElapsedSince(long startNanoTime) {
1006		return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
1007		}
1008
1009	+	//     void assertTerminatesPromptly(long timeoutMillis, Runnable r) {
1010	+	//         long startTime = System.nanoTime();
1011	+	//         try {
1012	+	//             r.run();
1013	+	//         } catch (Throwable fail) { threadUnexpectedException(fail); }
1014	+	//         if (millisElapsedSince(startTime) > timeoutMillis/2)
1015	+	//             throw new AssertionFailedError("did not return promptly");
1016	+	//     }
1017	+
1018	+	//     void assertTerminatesPromptly(Runnable r) {
1019	+	//         assertTerminatesPromptly(LONG_DELAY_MS/2, r);
1020	+	//     }
1021	+
1022	+	/**
1023	+	* Checks that timed f.get() returns the expected value, and does not
1024	+	* wait for the timeout to elapse before returning.
1025	+	*/
1026	+	<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
1027	+	long startTime = System.nanoTime();
1028	+	try {
1029	+	assertEquals(expectedValue, f.get(timeoutMillis, MILLISECONDS));
1030	+	} catch (Throwable fail) { threadUnexpectedException(fail); }
1031	+	if (millisElapsedSince(startTime) > timeoutMillis/2)
1032	+	throw new AssertionFailedError("timed get did not return promptly");
1033	+	}
1034	+
1035	+	<T> void checkTimedGet(Future<T> f, T expectedValue) {
1036	+	checkTimedGet(f, expectedValue, LONG_DELAY_MS);
1037	+	}
1038	+
1039		/**
1040		* Returns a new started daemon Thread running the given runnable.
1041		*/
#	Line 887 | Line 1054 | public class JSR166TestCase extends Test
1054		void awaitTermination(Thread t, long timeoutMillis) {
1055		try {
1056		t.join(timeoutMillis);
1057	<	} catch (InterruptedException ie) {
1058	<	threadUnexpectedException(ie);
1057	>	} catch (InterruptedException fail) {
1058	>	threadUnexpectedException(fail);
1059		} finally {
1060		if (t.getState() != Thread.State.TERMINATED) {
1061		t.interrupt();
#	Line 914 | Line 1081 | public class JSR166TestCase extends Test
1081		public final void run() {
1082		try {
1083		realRun();
1084	<	} catch (Throwable t) {
1085	<	threadUnexpectedException(t);
1084	>	} catch (Throwable fail) {
1085	>	threadUnexpectedException(fail);
1086		}
1087		}
1088		}
#	Line 969 | Line 1136 | public class JSR166TestCase extends Test
1136		threadShouldThrow("InterruptedException");
1137		} catch (InterruptedException success) {
1138		threadAssertFalse(Thread.interrupted());
1139	<	} catch (Throwable t) {
1140	<	threadUnexpectedException(t);
1139	>	} catch (Throwable fail) {
1140	>	threadUnexpectedException(fail);
1141		}
1142		}
1143		}
#	Line 981 | Line 1148 | public class JSR166TestCase extends Test
1148		public final T call() {
1149		try {
1150		return realCall();
1151	<	} catch (Throwable t) {
1152	<	threadUnexpectedException(t);
1151	>	} catch (Throwable fail) {
1152	>	threadUnexpectedException(fail);
1153		return null;
1154		}
1155		}
#	Line 999 | Line 1166 | public class JSR166TestCase extends Test
1166		return result;
1167		} catch (InterruptedException success) {
1168		threadAssertFalse(Thread.interrupted());
1169	<	} catch (Throwable t) {
1170	<	threadUnexpectedException(t);
1169	>	} catch (Throwable fail) {
1170	>	threadUnexpectedException(fail);
1171		}
1172		return null;
1173		}
#	Line 1040 | Line 1207 | public class JSR166TestCase extends Test
1207		public void await(CountDownLatch latch) {
1208		try {
1209		assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1210	<	} catch (Throwable t) {
1211	<	threadUnexpectedException(t);
1210	>	} catch (Throwable fail) {
1211	>	threadUnexpectedException(fail);
1212		}
1213		}
1214
1215		public void await(Semaphore semaphore) {
1216		try {
1217		assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1218	<	} catch (Throwable t) {
1219	<	threadUnexpectedException(t);
1218	>	} catch (Throwable fail) {
1219	>	threadUnexpectedException(fail);
1220		}
1221		}
1222
#	Line 1243 | Line 1410 | public class JSR166TestCase extends Test
1410		@Override protected final void compute() {
1411		try {
1412		realCompute();
1413	<	} catch (Throwable t) {
1414	<	threadUnexpectedException(t);
1413	>	} catch (Throwable fail) {
1414	>	threadUnexpectedException(fail);
1415		}
1416		}
1417		}
#	Line 1258 | Line 1425 | public class JSR166TestCase extends Test
1425		@Override protected final T compute() {
1426		try {
1427		return realCompute();
1428	<	} catch (Throwable t) {
1429	<	threadUnexpectedException(t);
1428	>	} catch (Throwable fail) {
1429	>	threadUnexpectedException(fail);
1430		return null;
1431		}
1432		}
#	Line 1283 | Line 1450 | public class JSR166TestCase extends Test
1450		public int await() {
1451		try {
1452		return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1453	<	} catch (TimeoutException e) {
1453	>	} catch (TimeoutException timedOut) {
1454		throw new AssertionFailedError("timed out");
1455	<	} catch (Exception e) {
1455	>	} catch (Exception fail) {
1456		AssertionFailedError afe =
1457	<	new AssertionFailedError("Unexpected exception: " + e);
1458	<	afe.initCause(e);
1457	>	new AssertionFailedError("Unexpected exception: " + fail);
1458	>	afe.initCause(fail);
1459		throw afe;
1460		}
1461		}
#	Line 1316 | Line 1483 | public class JSR166TestCase extends Test
1483		q.remove();
1484		shouldThrow();
1485		} catch (NoSuchElementException success) {}
1486	<	} catch (InterruptedException ie) {
1320	<	threadUnexpectedException(ie);
1321	<	}
1486	>	} catch (InterruptedException fail) { threadUnexpectedException(fail); }
1487		}
1488
1489		void assertSerialEquals(Object x, Object y) {
#	Line 1337 | Line 1502 | public class JSR166TestCase extends Test
1502		oos.flush();
1503		oos.close();
1504		return bos.toByteArray();
1505	<	} catch (Throwable t) {
1506	<	threadUnexpectedException(t);
1505	>	} catch (Throwable fail) {
1506	>	threadUnexpectedException(fail);
1507		return new byte[0];
1508		}
1509		}
#	Line 1351 | Line 1516 | public class JSR166TestCase extends Test
1516		T clone = (T) ois.readObject();
1517		assertSame(o.getClass(), clone.getClass());
1518		return clone;
1519	<	} catch (Throwable t) {
1520	<	threadUnexpectedException(t);
1519	>	} catch (Throwable fail) {
1520	>	threadUnexpectedException(fail);
1521		return null;
1522		}
1523		}
#	Line 1377 | Line 1542 | public class JSR166TestCase extends Test
1542		shouldThrow(expectedExceptionClass.getName());
1543		}
1544		}
1545	+
1546	+	public void assertIteratorExhausted(Iterator<?> it) {
1547	+	try {
1548	+	it.next();
1549	+	shouldThrow();
1550	+	} catch (NoSuchElementException success) {}
1551	+	assertFalse(it.hasNext());
1552	+	}
1553		}

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