ViewVC Help

View File | Revision Log | Show Annotations | Download File | Root Listing

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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.56 by jsr166, Sun Oct 3 23:59:05 2010 UTC vs.
Revision 1.189 by jsr166, Fri Mar 4 21:00:45 2016 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.util.PropertyPermission;
11	<	import java.util.concurrent.*;
12	<	import java.util.concurrent.atomic.AtomicReference;
9	>	/*
10	>	* @test
11	>	* @summary JSR-166 tck tests
12	>	* @modules java.management
13	>	* @build *
14	>	* @run junit/othervm/timeout=1000 -Djsr166.testImplementationDetails=true JSR166TestCase
15	>	*/
16	>
17		import static java.util.concurrent.TimeUnit.MILLISECONDS;
18	+	import static java.util.concurrent.TimeUnit.MINUTES;
19	+	import static java.util.concurrent.TimeUnit.NANOSECONDS;
20	+
21	+	import java.io.ByteArrayInputStream;
22	+	import java.io.ByteArrayOutputStream;
23	+	import java.io.ObjectInputStream;
24	+	import java.io.ObjectOutputStream;
25	+	import java.lang.management.ManagementFactory;
26	+	import java.lang.management.ThreadInfo;
27	+	import java.lang.management.ThreadMXBean;
28	+	import java.lang.reflect.Constructor;
29	+	import java.lang.reflect.Method;
30	+	import java.lang.reflect.Modifier;
31	+	import java.nio.file.Files;
32	+	import java.nio.file.Paths;
33		import java.security.CodeSource;
34		import java.security.Permission;
35		import java.security.PermissionCollection;
#	Line 18 | Line 37 | import java.security.Permissions;
37		import java.security.Policy;
38		import java.security.ProtectionDomain;
39		import java.security.SecurityPermission;
40	+	import java.util.ArrayList;
41	+	import java.util.Arrays;
42	+	import java.util.Date;
43	+	import java.util.Enumeration;
44	+	import java.util.Iterator;
45	+	import java.util.List;
46	+	import java.util.NoSuchElementException;
47	+	import java.util.PropertyPermission;
48	+	import java.util.concurrent.BlockingQueue;
49	+	import java.util.concurrent.Callable;
50	+	import java.util.concurrent.CountDownLatch;
51	+	import java.util.concurrent.CyclicBarrier;
52	+	import java.util.concurrent.ExecutionException;
53	+	import java.util.concurrent.Executors;
54	+	import java.util.concurrent.ExecutorService;
55	+	import java.util.concurrent.ForkJoinPool;
56	+	import java.util.concurrent.Future;
57	+	import java.util.concurrent.RecursiveAction;
58	+	import java.util.concurrent.RecursiveTask;
59	+	import java.util.concurrent.RejectedExecutionHandler;
60	+	import java.util.concurrent.Semaphore;
61	+	import java.util.concurrent.ThreadFactory;
62	+	import java.util.concurrent.ThreadPoolExecutor;
63	+	import java.util.concurrent.TimeoutException;
64	+	import java.util.concurrent.atomic.AtomicBoolean;
65	+	import java.util.concurrent.atomic.AtomicReference;
66	+	import java.util.regex.Matcher;
67	+	import java.util.regex.Pattern;
68	+
69	+	import junit.framework.AssertionFailedError;
70	+	import junit.framework.Test;
71	+	import junit.framework.TestCase;
72	+	import junit.framework.TestResult;
73	+	import junit.framework.TestSuite;
74
75		/**
76		* Base class for JSR166 Junit TCK tests.  Defines some constants,
#	Line 29 | Line 82 | import java.security.SecurityPermission;
82		*
83		* <ol>
84		*
85	<	* <li> All assertions in code running in generated threads must use
85	>	* <li>All assertions in code running in generated threads must use
86		* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link
87		* #threadAssertEquals}, or {@link #threadAssertNull}, (not
88		* {@code fail}, {@code assertTrue}, etc.) It is OK (but not
89		* particularly recommended) for other code to use these forms too.
90		* Only the most typically used JUnit assertion methods are defined
91	<	* this way, but enough to live with.</li>
91	>	* this way, but enough to live with.
92		*
93	<	* <li> If you override {@link #setUp} or {@link #tearDown}, make sure
93	>	* <li>If you override {@link #setUp} or {@link #tearDown}, make sure
94		* to invoke {@code super.setUp} and {@code super.tearDown} within
95		* them. These methods are used to clear and check for thread
96	<	* assertion failures.</li>
96	>	* assertion failures.
97		*
98		* <li>All delays and timeouts must use one of the constants {@code
99		* SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS},
#	Line 51 | Line 104 | import java.security.SecurityPermission;
104		* is always discriminable as larger than SHORT and smaller than
105		* MEDIUM.  And so on. These constants are set to conservative values,
106		* but even so, if there is ever any doubt, they can all be increased
107	<	* in one spot to rerun tests on slower platforms.</li>
107	>	* in one spot to rerun tests on slower platforms.
108		*
109	<	* <li> All threads generated must be joined inside each test case
109	>	* <li>All threads generated must be joined inside each test case
110		* method (or {@code fail} to do so) before returning from the
111		* method. The {@code joinPool} method can be used to do this when
112	<	* using Executors.</li>
112	>	* using Executors.
113		*
114		* </ol>
115		*
116	<	* <p> <b>Other notes</b>
116	>	* <p><b>Other notes</b>
117		* <ul>
118		*
119	<	* <li> Usually, there is one testcase method per JSR166 method
119	>	* <li>Usually, there is one testcase method per JSR166 method
120		* covering "normal" operation, and then as many exception-testing
121		* methods as there are exceptions the method can throw. Sometimes
122		* there are multiple tests per JSR166 method when the different
123		* "normal" behaviors differ significantly. And sometimes testcases
124	<	* cover multiple methods when they cannot be tested in
72	<	* isolation.</li>
124	>	* cover multiple methods when they cannot be tested in isolation.
125		*
126	<	* <li> The documentation style for testcases is to provide as javadoc
126	>	* <li>The documentation style for testcases is to provide as javadoc
127		* a simple sentence or two describing the property that the testcase
128		* method purports to test. The javadocs do not say anything about how
129	<	* the property is tested. To find out, read the code.</li>
129	>	* the property is tested. To find out, read the code.
130		*
131	<	* <li> These tests are "conformance tests", and do not attempt to
131	>	* <li>These tests are "conformance tests", and do not attempt to
132		* test throughput, latency, scalability or other performance factors
133		* (see the separate "jtreg" tests for a set intended to check these
134		* for the most central aspects of functionality.) So, most tests use
135		* the smallest sensible numbers of threads, collection sizes, etc
136	<	* needed to check basic conformance.</li>
136	>	* needed to check basic conformance.
137		*
138		* <li>The test classes currently do not declare inclusion in
139		* any particular package to simplify things for people integrating
140	<	* them in TCK test suites.</li>
140	>	* them in TCK test suites.
141		*
142	<	* <li> As a convenience, the {@code main} of this class (JSR166TestCase)
143	<	* runs all JSR166 unit tests.</li>
142	>	* <li>As a convenience, the {@code main} of this class (JSR166TestCase)
143	>	* runs all JSR166 unit tests.
144		*
145		* </ul>
146		*/
#	Line 96 | Line 148 | public class JSR166TestCase extends Test
148		private static final boolean useSecurityManager =
149		Boolean.getBoolean("jsr166.useSecurityManager");
150
151	+	protected static final boolean expensiveTests =
152	+	Boolean.getBoolean("jsr166.expensiveTests");
153	+
154	+	/**
155	+	* If true, also run tests that are not part of the official tck
156	+	* because they test unspecified implementation details.
157	+	*/
158	+	protected static final boolean testImplementationDetails =
159	+	Boolean.getBoolean("jsr166.testImplementationDetails");
160	+
161	+	/**
162	+	* If true, report on stdout all "slow" tests, that is, ones that
163	+	* take more than profileThreshold milliseconds to execute.
164	+	*/
165	+	private static final boolean profileTests =
166	+	Boolean.getBoolean("jsr166.profileTests");
167	+
168	+	/**
169	+	* The number of milliseconds that tests are permitted for
170	+	* execution without being reported, when profileTests is set.
171	+	*/
172	+	private static final long profileThreshold =
173	+	Long.getLong("jsr166.profileThreshold", 100);
174	+
175	+	/**
176	+	* The number of repetitions per test (for tickling rare bugs).
177	+	*/
178	+	private static final int runsPerTest =
179	+	Integer.getInteger("jsr166.runsPerTest", 1);
180	+
181	+	/**
182	+	* The number of repetitions of the test suite (for finding leaks?).
183	+	*/
184	+	private static final int suiteRuns =
185	+	Integer.getInteger("jsr166.suiteRuns", 1);
186	+
187	+	/**
188	+	* Returns the value of the system property, or NaN if not defined.
189	+	*/
190	+	private static float systemPropertyValue(String name) {
191	+	String floatString = System.getProperty(name);
192	+	if (floatString == null)
193	+	return Float.NaN;
194	+	try {
195	+	return Float.parseFloat(floatString);
196	+	} catch (NumberFormatException ex) {
197	+	throw new IllegalArgumentException(
198	+	String.format("Bad float value in system property %s=%s",
199	+	name, floatString));
200	+	}
201	+	}
202	+
203	+	/**
204	+	* The scaling factor to apply to standard delays used in tests.
205	+	* May be initialized from any of:
206	+	* - the "jsr166.delay.factor" system property
207	+	* - the "test.timeout.factor" system property (as used by jtreg)
208	+	*   See: http://openjdk.java.net/jtreg/tag-spec.html
209	+	* - hard-coded fuzz factor when using a known slowpoke VM
210	+	*/
211	+	private static final float delayFactor = delayFactor();
212	+
213	+	private static float delayFactor() {
214	+	float x;
215	+	if (!Float.isNaN(x = systemPropertyValue("jsr166.delay.factor")))
216	+	return x;
217	+	if (!Float.isNaN(x = systemPropertyValue("test.timeout.factor")))
218	+	return x;
219	+	String prop = System.getProperty("java.vm.version");
220	+	if (prop != null && prop.matches(".*debug.*"))
221	+	return 4.0f; // How much slower is fastdebug than product?!
222	+	return 1.0f;
223	+	}
224	+
225	+	public JSR166TestCase() { super(); }
226	+	public JSR166TestCase(String name) { super(name); }
227	+
228	+	/**
229	+	* A filter for tests to run, matching strings of the form
230	+	* methodName(className), e.g. "testInvokeAll5(ForkJoinPoolTest)"
231	+	* Usefully combined with jsr166.runsPerTest.
232	+	*/
233	+	private static final Pattern methodFilter = methodFilter();
234	+
235	+	private static Pattern methodFilter() {
236	+	String regex = System.getProperty("jsr166.methodFilter");
237	+	return (regex == null) ? null : Pattern.compile(regex);
238	+	}
239	+
240	+	// Instrumentation to debug very rare, but very annoying hung test runs.
241	+	static volatile TestCase currentTestCase;
242	+	// static volatile int currentRun = 0;
243	+	static {
244	+	Runnable checkForWedgedTest = new Runnable() { public void run() {
245	+	// Avoid spurious reports with enormous runsPerTest.
246	+	// A single test case run should never take more than 1 second.
247	+	// But let's cap it at the high end too ...
248	+	final int timeoutMinutes =
249	+	Math.min(15, Math.max(runsPerTest / 60, 1));
250	+	for (TestCase lastTestCase = currentTestCase;;) {
251	+	try { MINUTES.sleep(timeoutMinutes); }
252	+	catch (InterruptedException unexpected) { break; }
253	+	if (lastTestCase == currentTestCase) {
254	+	System.err.printf(
255	+	"Looks like we're stuck running test: %s%n",
256	+	lastTestCase);
257	+	//                     System.err.printf(
258	+	//                         "Looks like we're stuck running test: %s (%d/%d)%n",
259	+	//                         lastTestCase, currentRun, runsPerTest);
260	+	//                     System.err.println("availableProcessors=" +
261	+	//                         Runtime.getRuntime().availableProcessors());
262	+	//                     System.err.printf("cpu model = %s%n", cpuModel());
263	+	dumpTestThreads();
264	+	// one stack dump is probably enough; more would be spam
265	+	break;
266	+	}
267	+	lastTestCase = currentTestCase;
268	+	}}};
269	+	Thread thread = new Thread(checkForWedgedTest, "checkForWedgedTest");
270	+	thread.setDaemon(true);
271	+	thread.start();
272	+	}
273	+
274	+	//     public static String cpuModel() {
275	+	//         try {
276	+	//             Matcher matcher = Pattern.compile("model name\\s*: (.*)")
277	+	//                 .matcher(new String(
278	+	//                      Files.readAllBytes(Paths.get("/proc/cpuinfo")), "UTF-8"));
279	+	//             matcher.find();
280	+	//             return matcher.group(1);
281	+	//         } catch (Exception ex) { return null; }
282	+	//     }
283	+
284	+	public void runBare() throws Throwable {
285	+	currentTestCase = this;
286	+	if (methodFilter == null
287	+	|| methodFilter.matcher(toString()).find())
288	+	super.runBare();
289	+	}
290	+
291	+	protected void runTest() throws Throwable {
292	+	for (int i = 0; i < runsPerTest; i++) {
293	+	// currentRun = i;
294	+	if (profileTests)
295	+	runTestProfiled();
296	+	else
297	+	super.runTest();
298	+	}
299	+	}
300	+
301	+	protected void runTestProfiled() throws Throwable {
302	+	for (int i = 0; i < 2; i++) {
303	+	long startTime = System.nanoTime();
304	+	super.runTest();
305	+	long elapsedMillis = millisElapsedSince(startTime);
306	+	if (elapsedMillis < profileThreshold)
307	+	break;
308	+	// Never report first run of any test; treat it as a
309	+	// warmup run, notably to trigger all needed classloading,
310	+	if (i > 0)
311	+	System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
312	+	}
313	+	}
314	+
315		/**
316	<	* Runs all JSR166 unit tests using junit.textui.TestRunner
316	>	* Runs all JSR166 unit tests using junit.textui.TestRunner.
317		*/
318		public static void main(String[] args) {
319	+	main(suite(), args);
320	+	}
321	+
322	+	static class PithyResultPrinter extends junit.textui.ResultPrinter {
323	+	PithyResultPrinter(java.io.PrintStream writer) { super(writer); }
324	+	long runTime;
325	+	public void startTest(Test test) {}
326	+	protected void printHeader(long runTime) {
327	+	this.runTime = runTime; // defer printing for later
328	+	}
329	+	protected void printFooter(TestResult result) {
330	+	if (result.wasSuccessful()) {
331	+	getWriter().println("OK (" + result.runCount() + " tests)"
332	+	+ "  Time: " + elapsedTimeAsString(runTime));
333	+	} else {
334	+	getWriter().println("Time: " + elapsedTimeAsString(runTime));
335	+	super.printFooter(result);
336	+	}
337	+	}
338	+	}
339	+
340	+	/**
341	+	* Returns a TestRunner that doesn't bother with unnecessary
342	+	* fluff, like printing a "." for each test case.
343	+	*/
344	+	static junit.textui.TestRunner newPithyTestRunner() {
345	+	junit.textui.TestRunner runner = new junit.textui.TestRunner();
346	+	runner.setPrinter(new PithyResultPrinter(System.out));
347	+	return runner;
348	+	}
349	+
350	+	/**
351	+	* Runs all unit tests in the given test suite.
352	+	* Actual behavior influenced by jsr166.* system properties.
353	+	*/
354	+	static void main(Test suite, String[] args) {
355		if (useSecurityManager) {
356		System.err.println("Setting a permissive security manager");
357		Policy.setPolicy(permissivePolicy());
358		System.setSecurityManager(new SecurityManager());
359		}
360	<	int iters = (args.length == 0) ? 1 : Integer.parseInt(args[0]);
361	<
362	<	Test s = suite();
363	<	for (int i = 0; i < iters; ++i) {
112	<	junit.textui.TestRunner.run(s);
360	>	for (int i = 0; i < suiteRuns; i++) {
361	>	TestResult result = newPithyTestRunner().doRun(suite);
362	>	if (!result.wasSuccessful())
363	>	System.exit(1);
364		System.gc();
365		System.runFinalization();
366		}
367	<	System.exit(0);
367	>	}
368	>
369	>	public static TestSuite newTestSuite(Object... suiteOrClasses) {
370	>	TestSuite suite = new TestSuite();
371	>	for (Object suiteOrClass : suiteOrClasses) {
372	>	if (suiteOrClass instanceof TestSuite)
373	>	suite.addTest((TestSuite) suiteOrClass);
374	>	else if (suiteOrClass instanceof Class)
375	>	suite.addTest(new TestSuite((Class<?>) suiteOrClass));
376	>	else
377	>	throw new ClassCastException("not a test suite or class");
378	>	}
379	>	return suite;
380	>	}
381	>
382	>	public static void addNamedTestClasses(TestSuite suite,
383	>	String... testClassNames) {
384	>	for (String testClassName : testClassNames) {
385	>	try {
386	>	Class<?> testClass = Class.forName(testClassName);
387	>	Method m = testClass.getDeclaredMethod("suite",
388	>	new Class<?>[0]);
389	>	suite.addTest(newTestSuite((Test)m.invoke(null)));
390	>	} catch (Exception e) {
391	>	throw new Error("Missing test class", e);
392	>	}
393	>	}
394	>	}
395	>
396	>	public static final double JAVA_CLASS_VERSION;
397	>	public static final String JAVA_SPECIFICATION_VERSION;
398	>	static {
399	>	try {
400	>	JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
401	>	new java.security.PrivilegedAction<Double>() {
402	>	public Double run() {
403	>	return Double.valueOf(System.getProperty("java.class.version"));}});
404	>	JAVA_SPECIFICATION_VERSION = java.security.AccessController.doPrivileged(
405	>	new java.security.PrivilegedAction<String>() {
406	>	public String run() {
407	>	return System.getProperty("java.specification.version");}});
408	>	} catch (Throwable t) {
409	>	throw new Error(t);
410	>	}
411	>	}
412	>
413	>	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
414	>	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
415	>	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
416	>	public static boolean atLeastJava9() {
417	>	return JAVA_CLASS_VERSION >= 53.0
418	>	// As of 2015-09, java9 still uses 52.0 class file version
419	>	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?(9|[0-9][0-9])$");
420	>	}
421	>	public static boolean atLeastJava10() {
422	>	return JAVA_CLASS_VERSION >= 54.0
423	>	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?[0-9][0-9]$");
424		}
425
426		/**
427	<	* Collects all JSR166 unit tests as one suite
427	>	* Collects all JSR166 unit tests as one suite.
428		*/
429		public static Test suite() {
430	<	TestSuite suite = new TestSuite("JSR166 Unit Tests");
431	<
432	<	suite.addTest(ForkJoinPoolTest.suite());
433	<	suite.addTest(ForkJoinTaskTest.suite());
434	<	suite.addTest(RecursiveActionTest.suite());
435	<	suite.addTest(RecursiveTaskTest.suite());
436	<	suite.addTest(LinkedTransferQueueTest.suite());
437	<	suite.addTest(PhaserTest.suite());
438	<	suite.addTest(ThreadLocalRandomTest.suite());
439	<	suite.addTest(AbstractExecutorServiceTest.suite());
440	<	suite.addTest(AbstractQueueTest.suite());
441	<	suite.addTest(AbstractQueuedSynchronizerTest.suite());
442	<	suite.addTest(AbstractQueuedLongSynchronizerTest.suite());
443	<	suite.addTest(ArrayBlockingQueueTest.suite());
444	<	suite.addTest(ArrayDequeTest.suite());
445	<	suite.addTest(AtomicBooleanTest.suite());
446	<	suite.addTest(AtomicIntegerArrayTest.suite());
447	<	suite.addTest(AtomicIntegerFieldUpdaterTest.suite());
448	<	suite.addTest(AtomicIntegerTest.suite());
449	<	suite.addTest(AtomicLongArrayTest.suite());
450	<	suite.addTest(AtomicLongFieldUpdaterTest.suite());
451	<	suite.addTest(AtomicLongTest.suite());
452	<	suite.addTest(AtomicMarkableReferenceTest.suite());
453	<	suite.addTest(AtomicReferenceArrayTest.suite());
454	<	suite.addTest(AtomicReferenceFieldUpdaterTest.suite());
455	<	suite.addTest(AtomicReferenceTest.suite());
456	<	suite.addTest(AtomicStampedReferenceTest.suite());
457	<	suite.addTest(ConcurrentHashMapTest.suite());
458	<	suite.addTest(ConcurrentLinkedDequeTest.suite());
459	<	suite.addTest(ConcurrentLinkedQueueTest.suite());
460	<	suite.addTest(ConcurrentSkipListMapTest.suite());
461	<	suite.addTest(ConcurrentSkipListSubMapTest.suite());
462	<	suite.addTest(ConcurrentSkipListSetTest.suite());
463	<	suite.addTest(ConcurrentSkipListSubSetTest.suite());
464	<	suite.addTest(CopyOnWriteArrayListTest.suite());
465	<	suite.addTest(CopyOnWriteArraySetTest.suite());
466	<	suite.addTest(CountDownLatchTest.suite());
467	<	suite.addTest(CyclicBarrierTest.suite());
468	<	suite.addTest(DelayQueueTest.suite());
469	<	suite.addTest(EntryTest.suite());
470	<	suite.addTest(ExchangerTest.suite());
471	<	suite.addTest(ExecutorsTest.suite());
472	<	suite.addTest(ExecutorCompletionServiceTest.suite());
473	<	suite.addTest(FutureTaskTest.suite());
474	<	suite.addTest(LinkedBlockingDequeTest.suite());
475	<	suite.addTest(LinkedBlockingQueueTest.suite());
476	<	suite.addTest(LinkedListTest.suite());
477	<	suite.addTest(LockSupportTest.suite());
478	<	suite.addTest(PriorityBlockingQueueTest.suite());
479	<	suite.addTest(PriorityQueueTest.suite());
480	<	suite.addTest(ReentrantLockTest.suite());
481	<	suite.addTest(ReentrantReadWriteLockTest.suite());
482	<	suite.addTest(ScheduledExecutorTest.suite());
483	<	suite.addTest(ScheduledExecutorSubclassTest.suite());
484	<	suite.addTest(SemaphoreTest.suite());
485	<	suite.addTest(SynchronousQueueTest.suite());
486	<	suite.addTest(SystemTest.suite());
487	<	suite.addTest(ThreadLocalTest.suite());
488	<	suite.addTest(ThreadPoolExecutorTest.suite());
489	<	suite.addTest(ThreadPoolExecutorSubclassTest.suite());
490	<	suite.addTest(ThreadTest.suite());
491	<	suite.addTest(TimeUnitTest.suite());
492	<	suite.addTest(TreeMapTest.suite());
493	<	suite.addTest(TreeSetTest.suite());
494	<	suite.addTest(TreeSubMapTest.suite());
495	<	suite.addTest(TreeSubSetTest.suite());
430	>	// Java7+ test classes
431	>	TestSuite suite = newTestSuite(
432	>	ForkJoinPoolTest.suite(),
433	>	ForkJoinTaskTest.suite(),
434	>	RecursiveActionTest.suite(),
435	>	RecursiveTaskTest.suite(),
436	>	LinkedTransferQueueTest.suite(),
437	>	PhaserTest.suite(),
438	>	ThreadLocalRandomTest.suite(),
439	>	AbstractExecutorServiceTest.suite(),
440	>	AbstractQueueTest.suite(),
441	>	AbstractQueuedSynchronizerTest.suite(),
442	>	AbstractQueuedLongSynchronizerTest.suite(),
443	>	ArrayBlockingQueueTest.suite(),
444	>	ArrayDequeTest.suite(),
445	>	AtomicBooleanTest.suite(),
446	>	AtomicIntegerArrayTest.suite(),
447	>	AtomicIntegerFieldUpdaterTest.suite(),
448	>	AtomicIntegerTest.suite(),
449	>	AtomicLongArrayTest.suite(),
450	>	AtomicLongFieldUpdaterTest.suite(),
451	>	AtomicLongTest.suite(),
452	>	AtomicMarkableReferenceTest.suite(),
453	>	AtomicReferenceArrayTest.suite(),
454	>	AtomicReferenceFieldUpdaterTest.suite(),
455	>	AtomicReferenceTest.suite(),
456	>	AtomicStampedReferenceTest.suite(),
457	>	ConcurrentHashMapTest.suite(),
458	>	ConcurrentLinkedDequeTest.suite(),
459	>	ConcurrentLinkedQueueTest.suite(),
460	>	ConcurrentSkipListMapTest.suite(),
461	>	ConcurrentSkipListSubMapTest.suite(),
462	>	ConcurrentSkipListSetTest.suite(),
463	>	ConcurrentSkipListSubSetTest.suite(),
464	>	CopyOnWriteArrayListTest.suite(),
465	>	CopyOnWriteArraySetTest.suite(),
466	>	CountDownLatchTest.suite(),
467	>	CyclicBarrierTest.suite(),
468	>	DelayQueueTest.suite(),
469	>	EntryTest.suite(),
470	>	ExchangerTest.suite(),
471	>	ExecutorsTest.suite(),
472	>	ExecutorCompletionServiceTest.suite(),
473	>	FutureTaskTest.suite(),
474	>	LinkedBlockingDequeTest.suite(),
475	>	LinkedBlockingQueueTest.suite(),
476	>	LinkedListTest.suite(),
477	>	LockSupportTest.suite(),
478	>	PriorityBlockingQueueTest.suite(),
479	>	PriorityQueueTest.suite(),
480	>	ReentrantLockTest.suite(),
481	>	ReentrantReadWriteLockTest.suite(),
482	>	ScheduledExecutorTest.suite(),
483	>	ScheduledExecutorSubclassTest.suite(),
484	>	SemaphoreTest.suite(),
485	>	SynchronousQueueTest.suite(),
486	>	SystemTest.suite(),
487	>	ThreadLocalTest.suite(),
488	>	ThreadPoolExecutorTest.suite(),
489	>	ThreadPoolExecutorSubclassTest.suite(),
490	>	ThreadTest.suite(),
491	>	TimeUnitTest.suite(),
492	>	TreeMapTest.suite(),
493	>	TreeSetTest.suite(),
494	>	TreeSubMapTest.suite(),
495	>	TreeSubSetTest.suite());
496	>
497	>	// Java8+ test classes
498	>	if (atLeastJava8()) {
499	>	String[] java8TestClassNames = {
500	>	"Atomic8Test",
501	>	"CompletableFutureTest",
502	>	"ConcurrentHashMap8Test",
503	>	"CountedCompleterTest",
504	>	"DoubleAccumulatorTest",
505	>	"DoubleAdderTest",
506	>	"ForkJoinPool8Test",
507	>	"ForkJoinTask8Test",
508	>	"LongAccumulatorTest",
509	>	"LongAdderTest",
510	>	"SplittableRandomTest",
511	>	"StampedLockTest",
512	>	"SubmissionPublisherTest",
513	>	"ThreadLocalRandom8Test",
514	>	};
515	>	addNamedTestClasses(suite, java8TestClassNames);
516	>	}
517	>
518	>	// Java9+ test classes
519	>	if (atLeastJava9()) {
520	>	String[] java9TestClassNames = {
521	>	// Currently empty, but expecting varhandle tests
522	>	};
523	>	addNamedTestClasses(suite, java9TestClassNames);
524	>	}
525
526		return suite;
527		}
528
529	+	/** Returns list of junit-style test method names in given class. */
530	+	public static ArrayList<String> testMethodNames(Class<?> testClass) {
531	+	Method[] methods = testClass.getDeclaredMethods();
532	+	ArrayList<String> names = new ArrayList<String>(methods.length);
533	+	for (Method method : methods) {
534	+	if (method.getName().startsWith("test")
535	+	&& Modifier.isPublic(method.getModifiers())
536	+	// method.getParameterCount() requires jdk8+
537	+	&& method.getParameterTypes().length == 0) {
538	+	names.add(method.getName());
539	+	}
540	+	}
541	+	return names;
542	+	}
543	+
544	+	/**
545	+	* Returns junit-style testSuite for the given test class, but
546	+	* parameterized by passing extra data to each test.
547	+	*/
548	+	public static <ExtraData> Test parameterizedTestSuite
549	+	(Class<? extends JSR166TestCase> testClass,
550	+	Class<ExtraData> dataClass,
551	+	ExtraData data) {
552	+	try {
553	+	TestSuite suite = new TestSuite();
554	+	Constructor c =
555	+	testClass.getDeclaredConstructor(dataClass, String.class);
556	+	for (String methodName : testMethodNames(testClass))
557	+	suite.addTest((Test) c.newInstance(data, methodName));
558	+	return suite;
559	+	} catch (Exception e) {
560	+	throw new Error(e);
561	+	}
562	+	}
563	+
564	+	/**
565	+	* Returns junit-style testSuite for the jdk8 extension of the
566	+	* given test class, but parameterized by passing extra data to
567	+	* each test.  Uses reflection to allow compilation in jdk7.
568	+	*/
569	+	public static <ExtraData> Test jdk8ParameterizedTestSuite
570	+	(Class<? extends JSR166TestCase> testClass,
571	+	Class<ExtraData> dataClass,
572	+	ExtraData data) {
573	+	if (atLeastJava8()) {
574	+	String name = testClass.getName();
575	+	String name8 = name.replaceAll("Test$", "8Test");
576	+	if (name.equals(name8)) throw new Error(name);
577	+	try {
578	+	return (Test)
579	+	Class.forName(name8)
580	+	.getMethod("testSuite", new Class[] { dataClass })
581	+	.invoke(null, data);
582	+	} catch (Exception e) {
583	+	throw new Error(e);
584	+	}
585	+	} else {
586	+	return new TestSuite();
587	+	}
588	+	}
589	+
590	+	// Delays for timing-dependent tests, in milliseconds.
591
592		public static long SHORT_DELAY_MS;
593		public static long SMALL_DELAY_MS;
594		public static long MEDIUM_DELAY_MS;
595		public static long LONG_DELAY_MS;
596
199	–
597		/**
598	<	* Returns the shortest timed delay. This could
599	<	* be reimplemented to use for example a Property.
598	>	* Returns the shortest timed delay. This can be scaled up for
599	>	* slow machines using the jsr166.delay.factor system property,
600	>	* or via jtreg's -timeoutFactor: flag.
601	>	* http://openjdk.java.net/jtreg/command-help.html
602		*/
603		protected long getShortDelay() {
604	<	return 50;
604	>	return (long) (50 * delayFactor);
605		}
606
208	–
607		/**
608		* Sets delays as multiples of SHORT_DELAY.
609		*/
#	Line 213 | Line 611 | public class JSR166TestCase extends Test
611		SHORT_DELAY_MS = getShortDelay();
612		SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
613		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
614	<	LONG_DELAY_MS   = SHORT_DELAY_MS * 50;
614	>	LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
615	>	}
616	>
617	>	/**
618	>	* Returns a timeout in milliseconds to be used in tests that
619	>	* verify that operations block or time out.
620	>	*/
621	>	long timeoutMillis() {
622	>	return SHORT_DELAY_MS / 4;
623	>	}
624	>
625	>	/**
626	>	* Returns a new Date instance representing a time at least
627	>	* delayMillis milliseconds in the future.
628	>	*/
629	>	Date delayedDate(long delayMillis) {
630	>	// Add 1 because currentTimeMillis is known to round into the past.
631	>	return new Date(System.currentTimeMillis() + delayMillis + 1);
632		}
633
634		/**
#	Line 229 | Line 644 | public class JSR166TestCase extends Test
644		* the same test have no effect.
645		*/
646		public void threadRecordFailure(Throwable t) {
647	+	System.err.println(t);
648	+	dumpTestThreads();
649		threadFailure.compareAndSet(null, t);
650		}
651
#	Line 236 | Line 653 | public class JSR166TestCase extends Test
653		setDelays();
654		}
655
656	+	void tearDownFail(String format, Object... args) {
657	+	String msg = toString() + ": " + String.format(format, args);
658	+	System.err.println(msg);
659	+	dumpTestThreads();
660	+	throw new AssertionFailedError(msg);
661	+	}
662	+
663		/**
664	+	* Extra checks that get done for all test cases.
665	+	*
666		* Triggers test case failure if any thread assertions have failed,
667		* by rethrowing, in the test harness thread, any exception recorded
668		* earlier by threadRecordFailure.
669	+	*
670	+	* Triggers test case failure if interrupt status is set in the main thread.
671		*/
672		public void tearDown() throws Exception {
673	<	Throwable t = threadFailure.get();
673	>	Throwable t = threadFailure.getAndSet(null);
674		if (t != null) {
675		if (t instanceof Error)
676		throw (Error) t;
#	Line 250 | Line 678 | public class JSR166TestCase extends Test
678		throw (RuntimeException) t;
679		else if (t instanceof Exception)
680		throw (Exception) t;
681	<	else
682	<	throw new AssertionError(t);
681	>	else {
682	>	AssertionFailedError afe =
683	>	new AssertionFailedError(t.toString());
684	>	afe.initCause(t);
685	>	throw afe;
686	>	}
687		}
688	+
689	+	if (Thread.interrupted())
690	+	tearDownFail("interrupt status set in main thread");
691	+
692	+	checkForkJoinPoolThreadLeaks();
693	+	}
694	+
695	+	/**
696	+	* Finds missing PoolCleaners
697	+	*/
698	+	void checkForkJoinPoolThreadLeaks() throws InterruptedException {
699	+	Thread[] survivors = new Thread[7];
700	+	int count = Thread.enumerate(survivors);
701	+	for (int i = 0; i < count; i++) {
702	+	Thread thread = survivors[i];
703	+	String name = thread.getName();
704	+	if (name.startsWith("ForkJoinPool-")) {
705	+	// give thread some time to terminate
706	+	thread.join(LONG_DELAY_MS);
707	+	if (thread.isAlive())
708	+	tearDownFail("Found leaked ForkJoinPool thread thread=%s",
709	+	thread);
710	+	}
711	+	}
712	+
713	+	if (!ForkJoinPool.commonPool()
714	+	.awaitQuiescence(LONG_DELAY_MS, MILLISECONDS))
715	+	tearDownFail("ForkJoin common pool thread stuck");
716		}
717
718		/**
719		* Just like fail(reason), but additionally recording (using
720	<	* threadRecordFailure) any AssertionError thrown, so that the current
721	<	* testcase will fail.
720	>	* threadRecordFailure) any AssertionFailedError thrown, so that
721	>	* the current testcase will fail.
722		*/
723		public void threadFail(String reason) {
724		try {
725		fail(reason);
726	<	} catch (Throwable t) {
726	>	} catch (AssertionFailedError t) {
727		threadRecordFailure(t);
728	<	fail(reason);
728	>	throw t;
729		}
730		}
731
732		/**
733		* Just like assertTrue(b), but additionally recording (using
734	<	* threadRecordFailure) any AssertionError thrown, so that the current
735	<	* testcase will fail.
734	>	* threadRecordFailure) any AssertionFailedError thrown, so that
735	>	* the current testcase will fail.
736		*/
737		public void threadAssertTrue(boolean b) {
738		try {
739		assertTrue(b);
740	<	} catch (AssertionError t) {
740	>	} catch (AssertionFailedError t) {
741		threadRecordFailure(t);
742		throw t;
743		}
#	Line 285 | Line 745 | public class JSR166TestCase extends Test
745
746		/**
747		* Just like assertFalse(b), but additionally recording (using
748	<	* threadRecordFailure) any AssertionError thrown, so that the
749	<	* current testcase will fail.
748	>	* threadRecordFailure) any AssertionFailedError thrown, so that
749	>	* the current testcase will fail.
750		*/
751		public void threadAssertFalse(boolean b) {
752		try {
753		assertFalse(b);
754	<	} catch (AssertionError t) {
754	>	} catch (AssertionFailedError t) {
755		threadRecordFailure(t);
756		throw t;
757		}
#	Line 299 | Line 759 | public class JSR166TestCase extends Test
759
760		/**
761		* Just like assertNull(x), but additionally recording (using
762	<	* threadRecordFailure) any AssertionError thrown, so that the
763	<	* current testcase will fail.
762	>	* threadRecordFailure) any AssertionFailedError thrown, so that
763	>	* the current testcase will fail.
764		*/
765		public void threadAssertNull(Object x) {
766		try {
767		assertNull(x);
768	<	} catch (AssertionError t) {
768	>	} catch (AssertionFailedError t) {
769		threadRecordFailure(t);
770		throw t;
771		}
#	Line 313 | Line 773 | public class JSR166TestCase extends Test
773
774		/**
775		* Just like assertEquals(x, y), but additionally recording (using
776	<	* threadRecordFailure) any AssertionError thrown, so that the
777	<	* current testcase will fail.
776	>	* threadRecordFailure) any AssertionFailedError thrown, so that
777	>	* the current testcase will fail.
778		*/
779		public void threadAssertEquals(long x, long y) {
780		try {
781		assertEquals(x, y);
782	<	} catch (AssertionError t) {
782	>	} catch (AssertionFailedError t) {
783		threadRecordFailure(t);
784		throw t;
785		}
#	Line 327 | Line 787 | public class JSR166TestCase extends Test
787
788		/**
789		* Just like assertEquals(x, y), but additionally recording (using
790	<	* threadRecordFailure) any AssertionError thrown, so that the
791	<	* current testcase will fail.
790	>	* threadRecordFailure) any AssertionFailedError thrown, so that
791	>	* the current testcase will fail.
792		*/
793		public void threadAssertEquals(Object x, Object y) {
794		try {
795		assertEquals(x, y);
796	<	} catch (AssertionError t) {
797	<	threadRecordFailure(t);
798	<	throw t;
796	>	} catch (AssertionFailedError fail) {
797	>	threadRecordFailure(fail);
798	>	throw fail;
799	>	} catch (Throwable fail) {
800	>	threadUnexpectedException(fail);
801		}
802		}
803
804		/**
805		* Just like assertSame(x, y), but additionally recording (using
806	<	* threadRecordFailure) any AssertionError thrown, so that the
807	<	* current testcase will fail.
806	>	* threadRecordFailure) any AssertionFailedError thrown, so that
807	>	* the current testcase will fail.
808		*/
809		public void threadAssertSame(Object x, Object y) {
810		try {
811		assertSame(x, y);
812	<	} catch (AssertionError t) {
813	<	threadRecordFailure(t);
814	<	throw t;
812	>	} catch (AssertionFailedError fail) {
813	>	threadRecordFailure(fail);
814	>	throw fail;
815		}
816		}
817
#	Line 368 | Line 830 | public class JSR166TestCase extends Test
830		}
831
832		/**
833	<	* Calls threadFail with message "Unexpected exception" + ex.
833	>	* Records the given exception using {@link #threadRecordFailure},
834	>	* then rethrows the exception, wrapping it in an
835	>	* AssertionFailedError if necessary.
836		*/
837		public void threadUnexpectedException(Throwable t) {
838		threadRecordFailure(t);
839		t.printStackTrace();
376	–	// Rethrow, wrapping in an AssertionError if necessary
840		if (t instanceof RuntimeException)
841		throw (RuntimeException) t;
842		else if (t instanceof Error)
843		throw (Error) t;
844		else {
845	<	AssertionError ae = new AssertionError("unexpected exception: " + t);
846	<	t.initCause(t);
847	<	throw ae;
845	>	AssertionFailedError afe =
846	>	new AssertionFailedError("unexpected exception: " + t);
847	>	afe.initCause(t);
848	>	throw afe;
849		}
850		}
851
852		/**
853	+	* Delays, via Thread.sleep, for the given millisecond delay, but
854	+	* if the sleep is shorter than specified, may re-sleep or yield
855	+	* until time elapses.  Ensures that the given time, as measured
856	+	* by System.nanoTime(), has elapsed.
857	+	*/
858	+	static void delay(long millis) throws InterruptedException {
859	+	long nanos = millis * (1000 * 1000);
860	+	final long wakeupTime = System.nanoTime() + nanos;
861	+	do {
862	+	if (millis > 0L)
863	+	Thread.sleep(millis);
864	+	else // too short to sleep
865	+	Thread.yield();
866	+	nanos = wakeupTime - System.nanoTime();
867	+	millis = nanos / (1000 * 1000);
868	+	} while (nanos >= 0L);
869	+	}
870	+
871	+	/**
872	+	* Allows use of try-with-resources with per-test thread pools.
873	+	*/
874	+	class PoolCleaner implements AutoCloseable {
875	+	private final ExecutorService pool;
876	+	public PoolCleaner(ExecutorService pool) { this.pool = pool; }
877	+	public void close() { joinPool(pool); }
878	+	}
879	+
880	+	/**
881	+	* An extension of PoolCleaner that has an action to release the pool.
882	+	*/
883	+	class PoolCleanerWithReleaser extends PoolCleaner {
884	+	private final Runnable releaser;
885	+	public PoolCleanerWithReleaser(ExecutorService pool, Runnable releaser) {
886	+	super(pool);
887	+	this.releaser = releaser;
888	+	}
889	+	public void close() {
890	+	try {
891	+	releaser.run();
892	+	} finally {
893	+	super.close();
894	+	}
895	+	}
896	+	}
897	+
898	+	PoolCleaner cleaner(ExecutorService pool) {
899	+	return new PoolCleaner(pool);
900	+	}
901	+
902	+	PoolCleaner cleaner(ExecutorService pool, Runnable releaser) {
903	+	return new PoolCleanerWithReleaser(pool, releaser);
904	+	}
905	+
906	+	PoolCleaner cleaner(ExecutorService pool, CountDownLatch latch) {
907	+	return new PoolCleanerWithReleaser(pool, releaser(latch));
908	+	}
909	+
910	+	Runnable releaser(final CountDownLatch latch) {
911	+	return new Runnable() { public void run() {
912	+	do { latch.countDown(); }
913	+	while (latch.getCount() > 0);
914	+	}};
915	+	}
916	+
917	+	PoolCleaner cleaner(ExecutorService pool, AtomicBoolean flag) {
918	+	return new PoolCleanerWithReleaser(pool, releaser(flag));
919	+	}
920	+
921	+	Runnable releaser(final AtomicBoolean flag) {
922	+	return new Runnable() { public void run() { flag.set(true); }};
923	+	}
924	+
925	+	/**
926		* Waits out termination of a thread pool or fails doing so.
927		*/
928	<	public void joinPool(ExecutorService exec) {
928	>	void joinPool(ExecutorService pool) {
929		try {
930	<	exec.shutdown();
931	<	assertTrue("ExecutorService did not terminate in a timely manner",
932	<	exec.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
930	>	pool.shutdown();
931	>	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)) {
932	>	try {
933	>	threadFail("ExecutorService " + pool +
934	>	" did not terminate in a timely manner");
935	>	} finally {
936	>	// last resort, for the benefit of subsequent tests
937	>	pool.shutdownNow();
938	>	pool.awaitTermination(MEDIUM_DELAY_MS, MILLISECONDS);
939	>	}
940	>	}
941		} catch (SecurityException ok) {
942		// Allowed in case test doesn't have privs
943	<	} catch (InterruptedException ie) {
944	<	fail("Unexpected InterruptedException");
943	>	} catch (InterruptedException fail) {
944	>	threadFail("Unexpected InterruptedException");
945		}
946		}
947
948	+	/** Like Runnable, but with the freedom to throw anything */
949	+	interface Action { public void run() throws Throwable; }
950	+
951	+	/**
952	+	* Runs all the given actions in parallel, failing if any fail.
953	+	* Useful for running multiple variants of tests that are
954	+	* necessarily individually slow because they must block.
955	+	*/
956	+	void testInParallel(Action ... actions) {
957	+	ExecutorService pool = Executors.newCachedThreadPool();
958	+	try (PoolCleaner cleaner = cleaner(pool)) {
959	+	ArrayList<Future<?>> futures = new ArrayList<>(actions.length);
960	+	for (final Action action : actions)
961	+	futures.add(pool.submit(new CheckedRunnable() {
962	+	public void realRun() throws Throwable { action.run();}}));
963	+	for (Future<?> future : futures)
964	+	try {
965	+	assertNull(future.get(LONG_DELAY_MS, MILLISECONDS));
966	+	} catch (ExecutionException ex) {
967	+	threadUnexpectedException(ex.getCause());
968	+	} catch (Exception ex) {
969	+	threadUnexpectedException(ex);
970	+	}
971	+	}
972	+	}
973	+
974	+	/**
975	+	* A debugging tool to print stack traces of most threads, as jstack does.
976	+	* Uninteresting threads are filtered out.
977	+	*/
978	+	static void dumpTestThreads() {
979	+	ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
980	+	System.err.println("------ stacktrace dump start ------");
981	+	for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) {
982	+	String name = info.getThreadName();
983	+	if ("Signal Dispatcher".equals(name))
984	+	continue;
985	+	if ("Reference Handler".equals(name)
986	+	&& info.getLockName().startsWith("java.lang.ref.Reference$Lock"))
987	+	continue;
988	+	if ("Finalizer".equals(name)
989	+	&& info.getLockName().startsWith("java.lang.ref.ReferenceQueue$Lock"))
990	+	continue;
991	+	if ("checkForWedgedTest".equals(name))
992	+	continue;
993	+	System.err.print(info);
994	+	}
995	+	System.err.println("------ stacktrace dump end ------");
996	+	}
997	+
998	+	/**
999	+	* Checks that thread does not terminate within the default
1000	+	* millisecond delay of {@code timeoutMillis()}.
1001	+	*/
1002	+	void assertThreadStaysAlive(Thread thread) {
1003	+	assertThreadStaysAlive(thread, timeoutMillis());
1004	+	}
1005	+
1006	+	/**
1007	+	* Checks that thread does not terminate within the given millisecond delay.
1008	+	*/
1009	+	void assertThreadStaysAlive(Thread thread, long millis) {
1010	+	try {
1011	+	// No need to optimize the failing case via Thread.join.
1012	+	delay(millis);
1013	+	assertTrue(thread.isAlive());
1014	+	} catch (InterruptedException fail) {
1015	+	threadFail("Unexpected InterruptedException");
1016	+	}
1017	+	}
1018	+
1019	+	/**
1020	+	* Checks that the threads do not terminate within the default
1021	+	* millisecond delay of {@code timeoutMillis()}.
1022	+	*/
1023	+	void assertThreadsStayAlive(Thread... threads) {
1024	+	assertThreadsStayAlive(timeoutMillis(), threads);
1025	+	}
1026	+
1027	+	/**
1028	+	* Checks that the threads do not terminate within the given millisecond delay.
1029	+	*/
1030	+	void assertThreadsStayAlive(long millis, Thread... threads) {
1031	+	try {
1032	+	// No need to optimize the failing case via Thread.join.
1033	+	delay(millis);
1034	+	for (Thread thread : threads)
1035	+	assertTrue(thread.isAlive());
1036	+	} catch (InterruptedException fail) {
1037	+	threadFail("Unexpected InterruptedException");
1038	+	}
1039	+	}
1040	+
1041	+	/**
1042	+	* Checks that future.get times out, with the default timeout of
1043	+	* {@code timeoutMillis()}.
1044	+	*/
1045	+	void assertFutureTimesOut(Future future) {
1046	+	assertFutureTimesOut(future, timeoutMillis());
1047	+	}
1048	+
1049	+	/**
1050	+	* Checks that future.get times out, with the given millisecond timeout.
1051	+	*/
1052	+	void assertFutureTimesOut(Future future, long timeoutMillis) {
1053	+	long startTime = System.nanoTime();
1054	+	try {
1055	+	future.get(timeoutMillis, MILLISECONDS);
1056	+	shouldThrow();
1057	+	} catch (TimeoutException success) {
1058	+	} catch (Exception fail) {
1059	+	threadUnexpectedException(fail);
1060	+	} finally { future.cancel(true); }
1061	+	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
1062	+	}
1063
1064		/**
1065		* Fails with message "should throw exception".
#	Line 416 | Line 1076 | public class JSR166TestCase extends Test
1076		}
1077
1078		/**
419	–	* Fails with message "Unexpected exception: " + ex.
420	–	*/
421	–	public void unexpectedException(Throwable ex) {
422	–	ex.printStackTrace();
423	–	fail("Unexpected exception: " + ex);
424	–	}
425	–
426	–
427	–	/**
1079		* The number of elements to place in collections, arrays, etc.
1080		*/
1081		public static final int SIZE = 20;
#	Line 449 | Line 1100 | public class JSR166TestCase extends Test
1100		public static final Integer m6  = new Integer(-6);
1101		public static final Integer m10 = new Integer(-10);
1102
452	–
1103		/**
1104		* Runs Runnable r with a security policy that permits precisely
1105		* the specified permissions.  If there is no current security
#	Line 461 | Line 1111 | public class JSR166TestCase extends Test
1111		SecurityManager sm = System.getSecurityManager();
1112		if (sm == null) {
1113		r.run();
1114	+	}
1115	+	runWithSecurityManagerWithPermissions(r, permissions);
1116	+	}
1117	+
1118	+	/**
1119	+	* Runs Runnable r with a security policy that permits precisely
1120	+	* the specified permissions.  If there is no current security
1121	+	* manager, a temporary one is set for the duration of the
1122	+	* Runnable.  We require that any security manager permit
1123	+	* getPolicy/setPolicy.
1124	+	*/
1125	+	public void runWithSecurityManagerWithPermissions(Runnable r,
1126	+	Permission... permissions) {
1127	+	SecurityManager sm = System.getSecurityManager();
1128	+	if (sm == null) {
1129		Policy savedPolicy = Policy.getPolicy();
1130		try {
1131		Policy.setPolicy(permissivePolicy());
1132		System.setSecurityManager(new SecurityManager());
1133	<	runWithPermissions(r, permissions);
1133	>	runWithSecurityManagerWithPermissions(r, permissions);
1134		} finally {
1135		System.setSecurityManager(null);
1136		Policy.setPolicy(savedPolicy);
#	Line 513 | Line 1178 | public class JSR166TestCase extends Test
1178		return perms.implies(p);
1179		}
1180		public void refresh() {}
1181	+	public String toString() {
1182	+	List<Permission> ps = new ArrayList<Permission>();
1183	+	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
1184	+	ps.add(e.nextElement());
1185	+	return "AdjustablePolicy with permissions " + ps;
1186	+	}
1187		}
1188
1189		/**
#	Line 535 | Line 1206 | public class JSR166TestCase extends Test
1206		}
1207
1208		/**
1209	<	* Sleep until the timeout has elapsed, or interrupted.
1210	<	* Does <em>NOT</em> throw InterruptedException.
1209	>	* Sleeps until the given time has elapsed.
1210	>	* Throws AssertionFailedError if interrupted.
1211		*/
1212	<	void sleepTillInterrupted(long timeoutMillis) {
1212	>	void sleep(long millis) {
1213		try {
1214	<	Thread.sleep(timeoutMillis);
1215	<	} catch (InterruptedException wakeup) {}
1214	>	delay(millis);
1215	>	} catch (InterruptedException fail) {
1216	>	AssertionFailedError afe =
1217	>	new AssertionFailedError("Unexpected InterruptedException");
1218	>	afe.initCause(fail);
1219	>	throw afe;
1220	>	}
1221	>	}
1222	>
1223	>	/**
1224	>	* Spin-waits up to the specified number of milliseconds for the given
1225	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1226	>	*/
1227	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1228	>	long startTime = System.nanoTime();
1229	>	for (;;) {
1230	>	Thread.State s = thread.getState();
1231	>	if (s == Thread.State.BLOCKED ||
1232	>	s == Thread.State.WAITING ||
1233	>	s == Thread.State.TIMED_WAITING)
1234	>	return;
1235	>	else if (s == Thread.State.TERMINATED)
1236	>	fail("Unexpected thread termination");
1237	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
1238	>	threadAssertTrue(thread.isAlive());
1239	>	return;
1240	>	}
1241	>	Thread.yield();
1242	>	}
1243	>	}
1244	>
1245	>	/**
1246	>	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
1247	>	* state: BLOCKED, WAITING, or TIMED_WAITING.
1248	>	*/
1249	>	void waitForThreadToEnterWaitState(Thread thread) {
1250	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
1251		}
1252
1253		/**
1254	<	* Returns a new started Thread running the given runnable.
1254	>	* Returns the number of milliseconds since time given by
1255	>	* startNanoTime, which must have been previously returned from a
1256	>	* call to {@link System#nanoTime()}.
1257	>	*/
1258	>	static long millisElapsedSince(long startNanoTime) {
1259	>	return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
1260	>	}
1261	>
1262	>	//     void assertTerminatesPromptly(long timeoutMillis, Runnable r) {
1263	>	//         long startTime = System.nanoTime();
1264	>	//         try {
1265	>	//             r.run();
1266	>	//         } catch (Throwable fail) { threadUnexpectedException(fail); }
1267	>	//         if (millisElapsedSince(startTime) > timeoutMillis/2)
1268	>	//             throw new AssertionFailedError("did not return promptly");
1269	>	//     }
1270	>
1271	>	//     void assertTerminatesPromptly(Runnable r) {
1272	>	//         assertTerminatesPromptly(LONG_DELAY_MS/2, r);
1273	>	//     }
1274	>
1275	>	/**
1276	>	* Checks that timed f.get() returns the expected value, and does not
1277	>	* wait for the timeout to elapse before returning.
1278	>	*/
1279	>	<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
1280	>	long startTime = System.nanoTime();
1281	>	try {
1282	>	assertEquals(expectedValue, f.get(timeoutMillis, MILLISECONDS));
1283	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
1284	>	if (millisElapsedSince(startTime) > timeoutMillis/2)
1285	>	throw new AssertionFailedError("timed get did not return promptly");
1286	>	}
1287	>
1288	>	<T> void checkTimedGet(Future<T> f, T expectedValue) {
1289	>	checkTimedGet(f, expectedValue, LONG_DELAY_MS);
1290	>	}
1291	>
1292	>	/**
1293	>	* Returns a new started daemon Thread running the given runnable.
1294		*/
1295		Thread newStartedThread(Runnable runnable) {
1296		Thread t = new Thread(runnable);
1297	+	t.setDaemon(true);
1298		t.start();
1299		return t;
1300		}
1301
1302	+	/**
1303	+	* Waits for the specified time (in milliseconds) for the thread
1304	+	* to terminate (using {@link Thread#join(long)}), else interrupts
1305	+	* the thread (in the hope that it may terminate later) and fails.
1306	+	*/
1307	+	void awaitTermination(Thread t, long timeoutMillis) {
1308	+	try {
1309	+	t.join(timeoutMillis);
1310	+	} catch (InterruptedException fail) {
1311	+	threadUnexpectedException(fail);
1312	+	} finally {
1313	+	if (t.getState() != Thread.State.TERMINATED) {
1314	+	t.interrupt();
1315	+	threadFail("timed out waiting for thread to terminate");
1316	+	}
1317	+	}
1318	+	}
1319	+
1320	+	/**
1321	+	* Waits for LONG_DELAY_MS milliseconds for the thread to
1322	+	* terminate (using {@link Thread#join(long)}), else interrupts
1323	+	* the thread (in the hope that it may terminate later) and fails.
1324	+	*/
1325	+	void awaitTermination(Thread t) {
1326	+	awaitTermination(t, LONG_DELAY_MS);
1327	+	}
1328	+
1329		// Some convenient Runnable classes
1330
1331		public abstract class CheckedRunnable implements Runnable {
#	Line 561 | Line 1334 | public class JSR166TestCase extends Test
1334		public final void run() {
1335		try {
1336		realRun();
1337	<	} catch (Throwable t) {
1338	<	threadUnexpectedException(t);
1337	>	} catch (Throwable fail) {
1338	>	threadUnexpectedException(fail);
1339		}
1340		}
1341		}
#	Line 615 | Line 1388 | public class JSR166TestCase extends Test
1388		realRun();
1389		threadShouldThrow("InterruptedException");
1390		} catch (InterruptedException success) {
1391	<	} catch (Throwable t) {
1392	<	threadUnexpectedException(t);
1391	>	threadAssertFalse(Thread.interrupted());
1392	>	} catch (Throwable fail) {
1393	>	threadUnexpectedException(fail);
1394		}
1395		}
1396		}
#	Line 627 | Line 1401 | public class JSR166TestCase extends Test
1401		public final T call() {
1402		try {
1403		return realCall();
1404	<	} catch (Throwable t) {
1405	<	threadUnexpectedException(t);
1404	>	} catch (Throwable fail) {
1405	>	threadUnexpectedException(fail);
1406		return null;
1407		}
1408		}
#	Line 644 | Line 1418 | public class JSR166TestCase extends Test
1418		threadShouldThrow("InterruptedException");
1419		return result;
1420		} catch (InterruptedException success) {
1421	<	} catch (Throwable t) {
1422	<	threadUnexpectedException(t);
1421	>	threadAssertFalse(Thread.interrupted());
1422	>	} catch (Throwable fail) {
1423	>	threadUnexpectedException(fail);
1424		}
1425		return null;
1426		}
#	Line 662 | Line 1437 | public class JSR166TestCase extends Test
1437		public static final String TEST_STRING = "a test string";
1438
1439		public static class StringTask implements Callable<String> {
1440	<	public String call() { return TEST_STRING; }
1440	>	final String value;
1441	>	public StringTask() { this(TEST_STRING); }
1442	>	public StringTask(String value) { this.value = value; }
1443	>	public String call() { return value; }
1444		}
1445
1446		public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
1447		return new CheckedCallable<String>() {
1448	<	public String realCall() {
1448	>	protected String realCall() {
1449		try {
1450		latch.await();
1451		} catch (InterruptedException quittingTime) {}
#	Line 675 | Line 1453 | public class JSR166TestCase extends Test
1453		}};
1454		}
1455
1456	+	public Runnable countDowner(final CountDownLatch latch) {
1457	+	return new CheckedRunnable() {
1458	+	public void realRun() throws InterruptedException {
1459	+	latch.countDown();
1460	+	}};
1461	+	}
1462	+
1463	+	class LatchAwaiter extends CheckedRunnable {
1464	+	static final int NEW = 0;
1465	+	static final int RUNNING = 1;
1466	+	static final int DONE = 2;
1467	+	final CountDownLatch latch;
1468	+	int state = NEW;
1469	+	LatchAwaiter(CountDownLatch latch) { this.latch = latch; }
1470	+	public void realRun() throws InterruptedException {
1471	+	state = 1;
1472	+	await(latch);
1473	+	state = 2;
1474	+	}
1475	+	}
1476	+
1477	+	public LatchAwaiter awaiter(CountDownLatch latch) {
1478	+	return new LatchAwaiter(latch);
1479	+	}
1480	+
1481	+	public void await(CountDownLatch latch, long timeoutMillis) {
1482	+	try {
1483	+	if (!latch.await(timeoutMillis, MILLISECONDS))
1484	+	fail("timed out waiting for CountDownLatch for "
1485	+	+ (timeoutMillis/1000) + " sec");
1486	+	} catch (Throwable fail) {
1487	+	threadUnexpectedException(fail);
1488	+	}
1489	+	}
1490	+
1491	+	public void await(CountDownLatch latch) {
1492	+	await(latch, LONG_DELAY_MS);
1493	+	}
1494	+
1495	+	public void await(Semaphore semaphore) {
1496	+	try {
1497	+	if (!semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS))
1498	+	fail("timed out waiting for Semaphore for "
1499	+	+ (LONG_DELAY_MS/1000) + " sec");
1500	+	} catch (Throwable fail) {
1501	+	threadUnexpectedException(fail);
1502	+	}
1503	+	}
1504	+
1505	+	//     /**
1506	+	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1507	+	//      */
1508	+	//     public void await(AtomicBoolean flag) {
1509	+	//         await(flag, LONG_DELAY_MS);
1510	+	//     }
1511	+
1512	+	//     /**
1513	+	//      * Spin-waits up to the specified timeout until flag becomes true.
1514	+	//      */
1515	+	//     public void await(AtomicBoolean flag, long timeoutMillis) {
1516	+	//         long startTime = System.nanoTime();
1517	+	//         while (!flag.get()) {
1518	+	//             if (millisElapsedSince(startTime) > timeoutMillis)
1519	+	//                 throw new AssertionFailedError("timed out");
1520	+	//             Thread.yield();
1521	+	//         }
1522	+	//     }
1523	+
1524		public static class NPETask implements Callable<String> {
1525		public String call() { throw new NullPointerException(); }
1526		}
#	Line 685 | Line 1531 | public class JSR166TestCase extends Test
1531
1532		public class ShortRunnable extends CheckedRunnable {
1533		protected void realRun() throws Throwable {
1534	<	Thread.sleep(SHORT_DELAY_MS);
1534	>	delay(SHORT_DELAY_MS);
1535		}
1536		}
1537
1538		public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1539		protected void realRun() throws InterruptedException {
1540	<	Thread.sleep(SHORT_DELAY_MS);
1540	>	delay(SHORT_DELAY_MS);
1541		}
1542		}
1543
1544		public class SmallRunnable extends CheckedRunnable {
1545		protected void realRun() throws Throwable {
1546	<	Thread.sleep(SMALL_DELAY_MS);
1546	>	delay(SMALL_DELAY_MS);
1547		}
1548		}
1549
1550		public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1551		protected void realRun() {
1552		try {
1553	<	Thread.sleep(SMALL_DELAY_MS);
1553	>	delay(SMALL_DELAY_MS);
1554		} catch (InterruptedException ok) {}
1555		}
1556		}
1557
1558		public class SmallCallable extends CheckedCallable {
1559		protected Object realCall() throws InterruptedException {
1560	<	Thread.sleep(SMALL_DELAY_MS);
1560	>	delay(SMALL_DELAY_MS);
1561		return Boolean.TRUE;
1562		}
1563		}
1564
719	–	public class SmallInterruptedRunnable extends CheckedInterruptedRunnable {
720	–	protected void realRun() throws InterruptedException {
721	–	Thread.sleep(SMALL_DELAY_MS);
722	–	}
723	–	}
724	–
1565		public class MediumRunnable extends CheckedRunnable {
1566		protected void realRun() throws Throwable {
1567	<	Thread.sleep(MEDIUM_DELAY_MS);
1567	>	delay(MEDIUM_DELAY_MS);
1568		}
1569		}
1570
1571		public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1572		protected void realRun() throws InterruptedException {
1573	<	Thread.sleep(MEDIUM_DELAY_MS);
1573	>	delay(MEDIUM_DELAY_MS);
1574		}
1575		}
1576
1577	+	public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1578	+	return new CheckedRunnable() {
1579	+	protected void realRun() {
1580	+	try {
1581	+	delay(timeoutMillis);
1582	+	} catch (InterruptedException ok) {}
1583	+	}};
1584	+	}
1585	+
1586		public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1587		protected void realRun() {
1588		try {
1589	<	Thread.sleep(MEDIUM_DELAY_MS);
1589	>	delay(MEDIUM_DELAY_MS);
1590		} catch (InterruptedException ok) {}
1591		}
1592		}
#	Line 745 | Line 1594 | public class JSR166TestCase extends Test
1594		public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1595		protected void realRun() {
1596		try {
1597	<	Thread.sleep(LONG_DELAY_MS);
1597	>	delay(LONG_DELAY_MS);
1598		} catch (InterruptedException ok) {}
1599		}
1600		}
#	Line 759 | Line 1608 | public class JSR166TestCase extends Test
1608		}
1609		}
1610
1611	+	public interface TrackedRunnable extends Runnable {
1612	+	boolean isDone();
1613	+	}
1614	+
1615	+	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1616	+	return new TrackedRunnable() {
1617	+	private volatile boolean done = false;
1618	+	public boolean isDone() { return done; }
1619	+	public void run() {
1620	+	try {
1621	+	delay(timeoutMillis);
1622	+	done = true;
1623	+	} catch (InterruptedException ok) {}
1624	+	}
1625	+	};
1626	+	}
1627	+
1628		public static class TrackedShortRunnable implements Runnable {
1629		public volatile boolean done = false;
1630		public void run() {
1631		try {
1632	<	Thread.sleep(SMALL_DELAY_MS);
1632	>	delay(SHORT_DELAY_MS);
1633	>	done = true;
1634	>	} catch (InterruptedException ok) {}
1635	>	}
1636	>	}
1637	>
1638	>	public static class TrackedSmallRunnable implements Runnable {
1639	>	public volatile boolean done = false;
1640	>	public void run() {
1641	>	try {
1642	>	delay(SMALL_DELAY_MS);
1643		done = true;
1644		} catch (InterruptedException ok) {}
1645		}
#	Line 773 | Line 1649 | public class JSR166TestCase extends Test
1649		public volatile boolean done = false;
1650		public void run() {
1651		try {
1652	<	Thread.sleep(MEDIUM_DELAY_MS);
1652	>	delay(MEDIUM_DELAY_MS);
1653		done = true;
1654		} catch (InterruptedException ok) {}
1655		}
#	Line 783 | Line 1659 | public class JSR166TestCase extends Test
1659		public volatile boolean done = false;
1660		public void run() {
1661		try {
1662	<	Thread.sleep(LONG_DELAY_MS);
1662	>	delay(LONG_DELAY_MS);
1663		done = true;
1664		} catch (InterruptedException ok) {}
1665		}
#	Line 800 | Line 1676 | public class JSR166TestCase extends Test
1676		public volatile boolean done = false;
1677		public Object call() {
1678		try {
1679	<	Thread.sleep(SMALL_DELAY_MS);
1679	>	delay(SMALL_DELAY_MS);
1680		done = true;
1681		} catch (InterruptedException ok) {}
1682		return Boolean.TRUE;
#	Line 813 | Line 1689 | public class JSR166TestCase extends Test
1689		public abstract class CheckedRecursiveAction extends RecursiveAction {
1690		protected abstract void realCompute() throws Throwable;
1691
1692	<	public final void compute() {
1692	>	@Override protected final void compute() {
1693		try {
1694		realCompute();
1695	<	} catch (Throwable t) {
1696	<	threadUnexpectedException(t);
1695	>	} catch (Throwable fail) {
1696	>	threadUnexpectedException(fail);
1697		}
1698		}
1699		}
#	Line 828 | Line 1704 | public class JSR166TestCase extends Test
1704		public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1705		protected abstract T realCompute() throws Throwable;
1706
1707	<	public final T compute() {
1707	>	@Override protected final T compute() {
1708		try {
1709		return realCompute();
1710	<	} catch (Throwable t) {
1711	<	threadUnexpectedException(t);
1710	>	} catch (Throwable fail) {
1711	>	threadUnexpectedException(fail);
1712		return null;
1713		}
1714		}
#	Line 846 | Line 1722 | public class JSR166TestCase extends Test
1722		ThreadPoolExecutor executor) {}
1723		}
1724
1725	+	/**
1726	+	* A CyclicBarrier that uses timed await and fails with
1727	+	* AssertionFailedErrors instead of throwing checked exceptions.
1728	+	*/
1729	+	public class CheckedBarrier extends CyclicBarrier {
1730	+	public CheckedBarrier(int parties) { super(parties); }
1731	+
1732	+	public int await() {
1733	+	try {
1734	+	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1735	+	} catch (TimeoutException timedOut) {
1736	+	throw new AssertionFailedError("timed out");
1737	+	} catch (Exception fail) {
1738	+	AssertionFailedError afe =
1739	+	new AssertionFailedError("Unexpected exception: " + fail);
1740	+	afe.initCause(fail);
1741	+	throw afe;
1742	+	}
1743	+	}
1744	+	}
1745	+
1746	+	void checkEmpty(BlockingQueue q) {
1747	+	try {
1748	+	assertTrue(q.isEmpty());
1749	+	assertEquals(0, q.size());
1750	+	assertNull(q.peek());
1751	+	assertNull(q.poll());
1752	+	assertNull(q.poll(0, MILLISECONDS));
1753	+	assertEquals(q.toString(), "[]");
1754	+	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1755	+	assertFalse(q.iterator().hasNext());
1756	+	try {
1757	+	q.element();
1758	+	shouldThrow();
1759	+	} catch (NoSuchElementException success) {}
1760	+	try {
1761	+	q.iterator().next();
1762	+	shouldThrow();
1763	+	} catch (NoSuchElementException success) {}
1764	+	try {
1765	+	q.remove();
1766	+	shouldThrow();
1767	+	} catch (NoSuchElementException success) {}
1768	+	} catch (InterruptedException fail) { threadUnexpectedException(fail); }
1769	+	}
1770	+
1771	+	void assertSerialEquals(Object x, Object y) {
1772	+	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1773	+	}
1774	+
1775	+	void assertNotSerialEquals(Object x, Object y) {
1776	+	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1777	+	}
1778	+
1779	+	byte[] serialBytes(Object o) {
1780	+	try {
1781	+	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1782	+	ObjectOutputStream oos = new ObjectOutputStream(bos);
1783	+	oos.writeObject(o);
1784	+	oos.flush();
1785	+	oos.close();
1786	+	return bos.toByteArray();
1787	+	} catch (Throwable fail) {
1788	+	threadUnexpectedException(fail);
1789	+	return new byte[0];
1790	+	}
1791	+	}
1792	+
1793	+	@SuppressWarnings("unchecked")
1794	+	<T> T serialClone(T o) {
1795	+	try {
1796	+	ObjectInputStream ois = new ObjectInputStream
1797	+	(new ByteArrayInputStream(serialBytes(o)));
1798	+	T clone = (T) ois.readObject();
1799	+	assertSame(o.getClass(), clone.getClass());
1800	+	return clone;
1801	+	} catch (Throwable fail) {
1802	+	threadUnexpectedException(fail);
1803	+	return null;
1804	+	}
1805	+	}
1806	+
1807	+	public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1808	+	Runnable... throwingActions) {
1809	+	for (Runnable throwingAction : throwingActions) {
1810	+	boolean threw = false;
1811	+	try { throwingAction.run(); }
1812	+	catch (Throwable t) {
1813	+	threw = true;
1814	+	if (!expectedExceptionClass.isInstance(t)) {
1815	+	AssertionFailedError afe =
1816	+	new AssertionFailedError
1817	+	("Expected " + expectedExceptionClass.getName() +
1818	+	", got " + t.getClass().getName());
1819	+	afe.initCause(t);
1820	+	threadUnexpectedException(afe);
1821	+	}
1822	+	}
1823	+	if (!threw)
1824	+	shouldThrow(expectedExceptionClass.getName());
1825	+	}
1826	+	}
1827	+
1828	+	public void assertIteratorExhausted(Iterator<?> it) {
1829	+	try {
1830	+	it.next();
1831	+	shouldThrow();
1832	+	} catch (NoSuchElementException success) {}
1833	+	assertFalse(it.hasNext());
1834	+	}
1835		}

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines