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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.80 by jsr166, Fri May 13 21:48:58 2011 UTC vs.
Revision 1.182 by jsr166, Sun Jan 17 00:07:51 2016 UTC

#	Line 6 | Line 6
6		* Pat Fisher, Mike Judd.
7		*/
8
9	<	import junit.framework.*;
9	>	/*
10	>	* @test
11	>	* @summary JSR-166 tck tests
12	>	* @build *
13	>	* @run junit/othervm/timeout=1000 JSR166TestCase
14	>	*/
15	>
16	>	import static java.util.concurrent.TimeUnit.MILLISECONDS;
17	>	import static java.util.concurrent.TimeUnit.MINUTES;
18	>	import static java.util.concurrent.TimeUnit.NANOSECONDS;
19	>
20		import java.io.ByteArrayInputStream;
21		import java.io.ByteArrayOutputStream;
22		import java.io.ObjectInputStream;
23		import java.io.ObjectOutputStream;
24	<	import java.util.Arrays;
25	<	import java.util.NoSuchElementException;
26	<	import java.util.PropertyPermission;
27	<	import java.util.concurrent.*;
28	<	import java.util.concurrent.atomic.AtomicReference;
29	<	import static java.util.concurrent.TimeUnit.MILLISECONDS;
30	<	import static java.util.concurrent.TimeUnit.NANOSECONDS;
24	>	import java.lang.management.ManagementFactory;
25	>	import java.lang.management.ThreadInfo;
26	>	import java.lang.management.ThreadMXBean;
27	>	import java.lang.reflect.Constructor;
28	>	import java.lang.reflect.Method;
29	>	import java.lang.reflect.Modifier;
30	>	import java.nio.file.Files;
31	>	import java.nio.file.Paths;
32		import java.security.CodeSource;
33		import java.security.Permission;
34		import java.security.PermissionCollection;
#	Line 25 | Line 36 | import java.security.Permissions;
36		import java.security.Policy;
37		import java.security.ProtectionDomain;
38		import java.security.SecurityPermission;
39	+	import java.util.ArrayList;
40	+	import java.util.Arrays;
41	+	import java.util.Date;
42	+	import java.util.Enumeration;
43	+	import java.util.Iterator;
44	+	import java.util.List;
45	+	import java.util.NoSuchElementException;
46	+	import java.util.PropertyPermission;
47	+	import java.util.concurrent.BlockingQueue;
48	+	import java.util.concurrent.Callable;
49	+	import java.util.concurrent.CountDownLatch;
50	+	import java.util.concurrent.CyclicBarrier;
51	+	import java.util.concurrent.ExecutionException;
52	+	import java.util.concurrent.Executors;
53	+	import java.util.concurrent.ExecutorService;
54	+	import java.util.concurrent.ForkJoinPool;
55	+	import java.util.concurrent.Future;
56	+	import java.util.concurrent.RecursiveAction;
57	+	import java.util.concurrent.RecursiveTask;
58	+	import java.util.concurrent.RejectedExecutionHandler;
59	+	import java.util.concurrent.Semaphore;
60	+	import java.util.concurrent.ThreadFactory;
61	+	import java.util.concurrent.ThreadPoolExecutor;
62	+	import java.util.concurrent.TimeoutException;
63	+	import java.util.concurrent.atomic.AtomicReference;
64	+	import java.util.regex.Matcher;
65	+	import java.util.regex.Pattern;
66	+
67	+	import junit.framework.AssertionFailedError;
68	+	import junit.framework.Test;
69	+	import junit.framework.TestCase;
70	+	import junit.framework.TestResult;
71	+	import junit.framework.TestSuite;
72
73		/**
74		* Base class for JSR166 Junit TCK tests.  Defines some constants,
#	Line 36 | Line 80 | import java.security.SecurityPermission;
80		*
81		* <ol>
82		*
83	<	* <li> All assertions in code running in generated threads must use
83	>	* <li>All assertions in code running in generated threads must use
84		* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link
85		* #threadAssertEquals}, or {@link #threadAssertNull}, (not
86		* {@code fail}, {@code assertTrue}, etc.) It is OK (but not
87		* particularly recommended) for other code to use these forms too.
88		* Only the most typically used JUnit assertion methods are defined
89	<	* this way, but enough to live with.</li>
89	>	* this way, but enough to live with.
90		*
91	<	* <li> If you override {@link #setUp} or {@link #tearDown}, make sure
91	>	* <li>If you override {@link #setUp} or {@link #tearDown}, make sure
92		* to invoke {@code super.setUp} and {@code super.tearDown} within
93		* them. These methods are used to clear and check for thread
94	<	* assertion failures.</li>
94	>	* assertion failures.
95		*
96		* <li>All delays and timeouts must use one of the constants {@code
97		* SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS},
#	Line 58 | Line 102 | import java.security.SecurityPermission;
102		* is always discriminable as larger than SHORT and smaller than
103		* MEDIUM.  And so on. These constants are set to conservative values,
104		* but even so, if there is ever any doubt, they can all be increased
105	<	* in one spot to rerun tests on slower platforms.</li>
105	>	* in one spot to rerun tests on slower platforms.
106		*
107	<	* <li> All threads generated must be joined inside each test case
107	>	* <li>All threads generated must be joined inside each test case
108		* method (or {@code fail} to do so) before returning from the
109		* method. The {@code joinPool} method can be used to do this when
110	<	* using Executors.</li>
110	>	* using Executors.
111		*
112		* </ol>
113		*
114	<	* <p> <b>Other notes</b>
114	>	* <p><b>Other notes</b>
115		* <ul>
116		*
117	<	* <li> Usually, there is one testcase method per JSR166 method
117	>	* <li>Usually, there is one testcase method per JSR166 method
118		* covering "normal" operation, and then as many exception-testing
119		* methods as there are exceptions the method can throw. Sometimes
120		* there are multiple tests per JSR166 method when the different
121		* "normal" behaviors differ significantly. And sometimes testcases
122	<	* cover multiple methods when they cannot be tested in
79	<	* isolation.</li>
122	>	* cover multiple methods when they cannot be tested in isolation.
123		*
124	<	* <li> The documentation style for testcases is to provide as javadoc
124	>	* <li>The documentation style for testcases is to provide as javadoc
125		* a simple sentence or two describing the property that the testcase
126		* method purports to test. The javadocs do not say anything about how
127	<	* the property is tested. To find out, read the code.</li>
127	>	* the property is tested. To find out, read the code.
128		*
129	<	* <li> These tests are "conformance tests", and do not attempt to
129	>	* <li>These tests are "conformance tests", and do not attempt to
130		* test throughput, latency, scalability or other performance factors
131		* (see the separate "jtreg" tests for a set intended to check these
132		* for the most central aspects of functionality.) So, most tests use
133		* the smallest sensible numbers of threads, collection sizes, etc
134	<	* needed to check basic conformance.</li>
134	>	* needed to check basic conformance.
135		*
136		* <li>The test classes currently do not declare inclusion in
137		* any particular package to simplify things for people integrating
138	<	* them in TCK test suites.</li>
138	>	* them in TCK test suites.
139		*
140	<	* <li> As a convenience, the {@code main} of this class (JSR166TestCase)
141	<	* runs all JSR166 unit tests.</li>
140	>	* <li>As a convenience, the {@code main} of this class (JSR166TestCase)
141	>	* runs all JSR166 unit tests.
142		*
143		* </ul>
144		*/
#	Line 107 | Line 150 | public class JSR166TestCase extends Test
150		Boolean.getBoolean("jsr166.expensiveTests");
151
152		/**
153	+	* If true, also run tests that are not part of the official tck
154	+	* because they test unspecified implementation details.
155	+	*/
156	+	protected static final boolean testImplementationDetails =
157	+	Boolean.getBoolean("jsr166.testImplementationDetails");
158	+
159	+	/**
160		* If true, report on stdout all "slow" tests, that is, ones that
161		* take more than profileThreshold milliseconds to execute.
162		*/
#	Line 120 | Line 170 | public class JSR166TestCase extends Test
170		private static final long profileThreshold =
171		Long.getLong("jsr166.profileThreshold", 100);
172
173	+	/**
174	+	* The number of repetitions per test (for tickling rare bugs).
175	+	*/
176	+	private static final int runsPerTest =
177	+	Integer.getInteger("jsr166.runsPerTest", 1);
178	+
179	+	/**
180	+	* The number of repetitions of the test suite (for finding leaks?).
181	+	*/
182	+	private static final int suiteRuns =
183	+	Integer.getInteger("jsr166.suiteRuns", 1);
184	+
185	+	/**
186	+	* The scaling factor to apply to standard delays used in tests.
187	+	*/
188	+	private static final int delayFactor =
189	+	Integer.getInteger("jsr166.delay.factor", 1);
190	+
191	+	public JSR166TestCase() { super(); }
192	+	public JSR166TestCase(String name) { super(name); }
193	+
194	+	/**
195	+	* A filter for tests to run, matching strings of the form
196	+	* methodName(className), e.g. "testInvokeAll5(ForkJoinPoolTest)"
197	+	* Usefully combined with jsr166.runsPerTest.
198	+	*/
199	+	private static final Pattern methodFilter = methodFilter();
200	+
201	+	private static Pattern methodFilter() {
202	+	String regex = System.getProperty("jsr166.methodFilter");
203	+	return (regex == null) ? null : Pattern.compile(regex);
204	+	}
205	+
206	+	// Instrumentation to debug very rare, but very annoying hung test runs.
207	+	static volatile TestCase currentTestCase;
208	+	// static volatile int currentRun = 0;
209	+	static {
210	+	Runnable checkForWedgedTest = new Runnable() { public void run() {
211	+	// Avoid spurious reports with enormous runsPerTest.
212	+	// A single test case run should never take more than 1 second.
213	+	// But let's cap it at the high end too ...
214	+	final int timeoutMinutes =
215	+	Math.min(15, Math.max(runsPerTest / 60, 1));
216	+	for (TestCase lastTestCase = currentTestCase;;) {
217	+	try { MINUTES.sleep(timeoutMinutes); }
218	+	catch (InterruptedException unexpected) { break; }
219	+	if (lastTestCase == currentTestCase) {
220	+	System.err.printf(
221	+	"Looks like we're stuck running test: %s%n",
222	+	lastTestCase);
223	+	//                     System.err.printf(
224	+	//                         "Looks like we're stuck running test: %s (%d/%d)%n",
225	+	//                         lastTestCase, currentRun, runsPerTest);
226	+	//                     System.err.println("availableProcessors=" +
227	+	//                         Runtime.getRuntime().availableProcessors());
228	+	//                     System.err.printf("cpu model = %s%n", cpuModel());
229	+	dumpTestThreads();
230	+	// one stack dump is probably enough; more would be spam
231	+	break;
232	+	}
233	+	lastTestCase = currentTestCase;
234	+	}}};
235	+	Thread thread = new Thread(checkForWedgedTest, "checkForWedgedTest");
236	+	thread.setDaemon(true);
237	+	thread.start();
238	+	}
239	+
240	+	//     public static String cpuModel() {
241	+	//         try {
242	+	//             Matcher matcher = Pattern.compile("model name\\s*: (.*)")
243	+	//                 .matcher(new String(
244	+	//                      Files.readAllBytes(Paths.get("/proc/cpuinfo")), "UTF-8"));
245	+	//             matcher.find();
246	+	//             return matcher.group(1);
247	+	//         } catch (Exception ex) { return null; }
248	+	//     }
249	+
250	+	public void runBare() throws Throwable {
251	+	currentTestCase = this;
252	+	if (methodFilter == null
253	+	|| methodFilter.matcher(toString()).find())
254	+	super.runBare();
255	+	}
256	+
257		protected void runTest() throws Throwable {
258	<	if (profileTests)
259	<	runTestProfiled();
260	<	else
261	<	super.runTest();
258	>	for (int i = 0; i < runsPerTest; i++) {
259	>	// currentRun = i;
260	>	if (profileTests)
261	>	runTestProfiled();
262	>	else
263	>	super.runTest();
264	>	}
265		}
266
267		protected void runTestProfiled() throws Throwable {
268	<	long t0 = System.nanoTime();
269	<	try {
268	>	for (int i = 0; i < 2; i++) {
269	>	long startTime = System.nanoTime();
270		super.runTest();
271	<	} finally {
272	<	long elapsedMillis =
273	<	(System.nanoTime() - t0) / (1000L * 1000L);
274	<	if (elapsedMillis >= profileThreshold)
271	>	long elapsedMillis = millisElapsedSince(startTime);
272	>	if (elapsedMillis < profileThreshold)
273	>	break;
274	>	// Never report first run of any test; treat it as a
275	>	// warmup run, notably to trigger all needed classloading,
276	>	if (i > 0)
277		System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
278		}
279		}
280
281		/**
282	<	* Runs all JSR166 unit tests using junit.textui.TestRunner
282	>	* Runs all JSR166 unit tests using junit.textui.TestRunner.
283		*/
284		public static void main(String[] args) {
285	+	main(suite(), args);
286	+	}
287	+
288	+	static class PithyResultPrinter extends junit.textui.ResultPrinter {
289	+	PithyResultPrinter(java.io.PrintStream writer) { super(writer); }
290	+	long runTime;
291	+	public void startTest(Test test) {}
292	+	protected void printHeader(long runTime) {
293	+	this.runTime = runTime; // defer printing for later
294	+	}
295	+	protected void printFooter(TestResult result) {
296	+	if (result.wasSuccessful()) {
297	+	getWriter().println("OK (" + result.runCount() + " tests)"
298	+	+ "  Time: " + elapsedTimeAsString(runTime));
299	+	} else {
300	+	getWriter().println("Time: " + elapsedTimeAsString(runTime));
301	+	super.printFooter(result);
302	+	}
303	+	}
304	+	}
305	+
306	+	/**
307	+	* Returns a TestRunner that doesn't bother with unnecessary
308	+	* fluff, like printing a "." for each test case.
309	+	*/
310	+	static junit.textui.TestRunner newPithyTestRunner() {
311	+	junit.textui.TestRunner runner = new junit.textui.TestRunner();
312	+	runner.setPrinter(new PithyResultPrinter(System.out));
313	+	return runner;
314	+	}
315	+
316	+	/**
317	+	* Runs all unit tests in the given test suite.
318	+	* Actual behavior influenced by jsr166.* system properties.
319	+	*/
320	+	static void main(Test suite, String[] args) {
321		if (useSecurityManager) {
322		System.err.println("Setting a permissive security manager");
323		Policy.setPolicy(permissivePolicy());
324		System.setSecurityManager(new SecurityManager());
325		}
326	<	int iters = (args.length == 0) ? 1 : Integer.parseInt(args[0]);
327	<
328	<	Test s = suite();
329	<	for (int i = 0; i < iters; ++i) {
155	<	junit.textui.TestRunner.run(s);
326	>	for (int i = 0; i < suiteRuns; i++) {
327	>	TestResult result = newPithyTestRunner().doRun(suite);
328	>	if (!result.wasSuccessful())
329	>	System.exit(1);
330		System.gc();
331		System.runFinalization();
332		}
159	–	System.exit(0);
333		}
334
335		public static TestSuite newTestSuite(Object... suiteOrClasses) {
#	Line 172 | Line 345 | public class JSR166TestCase extends Test
345		return suite;
346		}
347
348	+	public static void addNamedTestClasses(TestSuite suite,
349	+	String... testClassNames) {
350	+	for (String testClassName : testClassNames) {
351	+	try {
352	+	Class<?> testClass = Class.forName(testClassName);
353	+	Method m = testClass.getDeclaredMethod("suite",
354	+	new Class<?>[0]);
355	+	suite.addTest(newTestSuite((Test)m.invoke(null)));
356	+	} catch (Exception e) {
357	+	throw new Error("Missing test class", e);
358	+	}
359	+	}
360	+	}
361	+
362	+	public static final double JAVA_CLASS_VERSION;
363	+	public static final String JAVA_SPECIFICATION_VERSION;
364	+	static {
365	+	try {
366	+	JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
367	+	new java.security.PrivilegedAction<Double>() {
368	+	public Double run() {
369	+	return Double.valueOf(System.getProperty("java.class.version"));}});
370	+	JAVA_SPECIFICATION_VERSION = java.security.AccessController.doPrivileged(
371	+	new java.security.PrivilegedAction<String>() {
372	+	public String run() {
373	+	return System.getProperty("java.specification.version");}});
374	+	} catch (Throwable t) {
375	+	throw new Error(t);
376	+	}
377	+	}
378	+
379	+	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
380	+	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
381	+	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
382	+	public static boolean atLeastJava9() {
383	+	return JAVA_CLASS_VERSION >= 53.0
384	+	// As of 2015-09, java9 still uses 52.0 class file version
385	+	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?(9|[0-9][0-9])$");
386	+	}
387	+	public static boolean atLeastJava10() {
388	+	return JAVA_CLASS_VERSION >= 54.0
389	+	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?[0-9][0-9]$");
390	+	}
391	+
392		/**
393		* Collects all JSR166 unit tests as one suite.
394		*/
395		public static Test suite() {
396	<	return newTestSuite(
396	>	// Java7+ test classes
397	>	TestSuite suite = newTestSuite(
398		ForkJoinPoolTest.suite(),
399		ForkJoinTaskTest.suite(),
400		RecursiveActionTest.suite(),
#	Line 241 | Line 459 | public class JSR166TestCase extends Test
459		TreeSetTest.suite(),
460		TreeSubMapTest.suite(),
461		TreeSubSetTest.suite());
462	+
463	+	// Java8+ test classes
464	+	if (atLeastJava8()) {
465	+	String[] java8TestClassNames = {
466	+	"Atomic8Test",
467	+	"CompletableFutureTest",
468	+	"ConcurrentHashMap8Test",
469	+	"CountedCompleterTest",
470	+	"DoubleAccumulatorTest",
471	+	"DoubleAdderTest",
472	+	"ForkJoinPool8Test",
473	+	"ForkJoinTask8Test",
474	+	"LongAccumulatorTest",
475	+	"LongAdderTest",
476	+	"SplittableRandomTest",
477	+	"StampedLockTest",
478	+	"SubmissionPublisherTest",
479	+	"ThreadLocalRandom8Test",
480	+	};
481	+	addNamedTestClasses(suite, java8TestClassNames);
482	+	}
483	+
484	+	// Java9+ test classes
485	+	if (atLeastJava9()) {
486	+	String[] java9TestClassNames = {
487	+	// Currently empty, but expecting varhandle tests
488	+	};
489	+	addNamedTestClasses(suite, java9TestClassNames);
490	+	}
491	+
492	+	return suite;
493	+	}
494	+
495	+	/** Returns list of junit-style test method names in given class. */
496	+	public static ArrayList<String> testMethodNames(Class<?> testClass) {
497	+	Method[] methods = testClass.getDeclaredMethods();
498	+	ArrayList<String> names = new ArrayList<String>(methods.length);
499	+	for (Method method : methods) {
500	+	if (method.getName().startsWith("test")
501	+	&& Modifier.isPublic(method.getModifiers())
502	+	// method.getParameterCount() requires jdk8+
503	+	&& method.getParameterTypes().length == 0) {
504	+	names.add(method.getName());
505	+	}
506	+	}
507	+	return names;
508		}
509
510	+	/**
511	+	* Returns junit-style testSuite for the given test class, but
512	+	* parameterized by passing extra data to each test.
513	+	*/
514	+	public static <ExtraData> Test parameterizedTestSuite
515	+	(Class<? extends JSR166TestCase> testClass,
516	+	Class<ExtraData> dataClass,
517	+	ExtraData data) {
518	+	try {
519	+	TestSuite suite = new TestSuite();
520	+	Constructor c =
521	+	testClass.getDeclaredConstructor(dataClass, String.class);
522	+	for (String methodName : testMethodNames(testClass))
523	+	suite.addTest((Test) c.newInstance(data, methodName));
524	+	return suite;
525	+	} catch (Exception e) {
526	+	throw new Error(e);
527	+	}
528	+	}
529	+
530	+	/**
531	+	* Returns junit-style testSuite for the jdk8 extension of the
532	+	* given test class, but parameterized by passing extra data to
533	+	* each test.  Uses reflection to allow compilation in jdk7.
534	+	*/
535	+	public static <ExtraData> Test jdk8ParameterizedTestSuite
536	+	(Class<? extends JSR166TestCase> testClass,
537	+	Class<ExtraData> dataClass,
538	+	ExtraData data) {
539	+	if (atLeastJava8()) {
540	+	String name = testClass.getName();
541	+	String name8 = name.replaceAll("Test$", "8Test");
542	+	if (name.equals(name8)) throw new Error(name);
543	+	try {
544	+	return (Test)
545	+	Class.forName(name8)
546	+	.getMethod("testSuite", new Class[] { dataClass })
547	+	.invoke(null, data);
548	+	} catch (Exception e) {
549	+	throw new Error(e);
550	+	}
551	+	} else {
552	+	return new TestSuite();
553	+	}
554	+	}
555	+
556	+	// Delays for timing-dependent tests, in milliseconds.
557
558		public static long SHORT_DELAY_MS;
559		public static long SMALL_DELAY_MS;
560		public static long MEDIUM_DELAY_MS;
561		public static long LONG_DELAY_MS;
562
252	–
563		/**
564	<	* Returns the shortest timed delay. This could
565	<	* be reimplemented to use for example a Property.
564	>	* Returns the shortest timed delay. This can be scaled up for
565	>	* slow machines using the jsr166.delay.factor system property.
566		*/
567		protected long getShortDelay() {
568	<	return 50;
568	>	return 50 * delayFactor;
569		}
570
261	–
571		/**
572		* Sets delays as multiples of SHORT_DELAY.
573		*/
#	Line 270 | Line 579 | public class JSR166TestCase extends Test
579		}
580
581		/**
582	+	* Returns a timeout in milliseconds to be used in tests that
583	+	* verify that operations block or time out.
584	+	*/
585	+	long timeoutMillis() {
586	+	return SHORT_DELAY_MS / 4;
587	+	}
588	+
589	+	/**
590	+	* Returns a new Date instance representing a time at least
591	+	* delayMillis milliseconds in the future.
592	+	*/
593	+	Date delayedDate(long delayMillis) {
594	+	// Add 1 because currentTimeMillis is known to round into the past.
595	+	return new Date(System.currentTimeMillis() + delayMillis + 1);
596	+	}
597	+
598	+	/**
599		* The first exception encountered if any threadAssertXXX method fails.
600		*/
601		private final AtomicReference<Throwable> threadFailure
#	Line 282 | Line 608 | public class JSR166TestCase extends Test
608		* the same test have no effect.
609		*/
610		public void threadRecordFailure(Throwable t) {
611	+	System.err.println(t);
612	+	dumpTestThreads();
613		threadFailure.compareAndSet(null, t);
614		}
615
#	Line 289 | Line 617 | public class JSR166TestCase extends Test
617		setDelays();
618		}
619
620	+	void tearDownFail(String format, Object... args) {
621	+	String msg = toString() + ": " + String.format(format, args);
622	+	System.err.println(msg);
623	+	dumpTestThreads();
624	+	throw new AssertionFailedError(msg);
625	+	}
626	+
627		/**
628	+	* Extra checks that get done for all test cases.
629	+	*
630		* Triggers test case failure if any thread assertions have failed,
631		* by rethrowing, in the test harness thread, any exception recorded
632		* earlier by threadRecordFailure.
633	+	*
634	+	* Triggers test case failure if interrupt status is set in the main thread.
635		*/
636		public void tearDown() throws Exception {
637		Throwable t = threadFailure.getAndSet(null);
#	Line 310 | Line 649 | public class JSR166TestCase extends Test
649		throw afe;
650		}
651		}
652	+
653	+	if (Thread.interrupted())
654	+	tearDownFail("interrupt status set in main thread");
655	+
656	+	checkForkJoinPoolThreadLeaks();
657	+	}
658	+
659	+	/**
660	+	* Finds missing PoolCleaners
661	+	*/
662	+	void checkForkJoinPoolThreadLeaks() throws InterruptedException {
663	+	Thread[] survivors = new Thread[7];
664	+	int count = Thread.enumerate(survivors);
665	+	for (int i = 0; i < count; i++) {
666	+	Thread thread = survivors[i];
667	+	String name = thread.getName();
668	+	if (name.startsWith("ForkJoinPool-")) {
669	+	// give thread some time to terminate
670	+	thread.join(LONG_DELAY_MS);
671	+	if (thread.isAlive())
672	+	tearDownFail("Found leaked ForkJoinPool thread thread=%s",
673	+	thread);
674	+	}
675	+	}
676	+
677	+	if (!ForkJoinPool.commonPool()
678	+	.awaitQuiescence(LONG_DELAY_MS, MILLISECONDS))
679	+	tearDownFail("ForkJoin common pool thread stuck");
680		}
681
682		/**
#	Line 322 | Line 689 | public class JSR166TestCase extends Test
689		fail(reason);
690		} catch (AssertionFailedError t) {
691		threadRecordFailure(t);
692	<	fail(reason);
692	>	throw t;
693		}
694		}
695
#	Line 390 | Line 757 | public class JSR166TestCase extends Test
757		public void threadAssertEquals(Object x, Object y) {
758		try {
759		assertEquals(x, y);
760	<	} catch (AssertionFailedError t) {
761	<	threadRecordFailure(t);
762	<	throw t;
763	<	} catch (Throwable t) {
764	<	threadUnexpectedException(t);
760	>	} catch (AssertionFailedError fail) {
761	>	threadRecordFailure(fail);
762	>	throw fail;
763	>	} catch (Throwable fail) {
764	>	threadUnexpectedException(fail);
765		}
766		}
767
#	Line 406 | Line 773 | public class JSR166TestCase extends Test
773		public void threadAssertSame(Object x, Object y) {
774		try {
775		assertSame(x, y);
776	<	} catch (AssertionFailedError t) {
777	<	threadRecordFailure(t);
778	<	throw t;
776	>	} catch (AssertionFailedError fail) {
777	>	threadRecordFailure(fail);
778	>	throw fail;
779		}
780		}
781
#	Line 441 | Line 808 | public class JSR166TestCase extends Test
808		else {
809		AssertionFailedError afe =
810		new AssertionFailedError("unexpected exception: " + t);
811	<	t.initCause(t);
811	>	afe.initCause(t);
812		throw afe;
813		}
814		}
815
816		/**
817	<	* Delays, via Thread.sleep for the given millisecond delay, but
817	>	* Delays, via Thread.sleep, for the given millisecond delay, but
818		* if the sleep is shorter than specified, may re-sleep or yield
819	<	* until time elapses.
819	>	* until time elapses.  Ensures that the given time, as measured
820	>	* by System.nanoTime(), has elapsed.
821		*/
822	<	public static void delay(long millis) throws InterruptedException {
823	<	long startTime = System.nanoTime();
824	<	long ns = millis * 1000 * 1000;
825	<	for (;;) {
822	>	static void delay(long millis) throws InterruptedException {
823	>	long nanos = millis * (1000 * 1000);
824	>	final long wakeupTime = System.nanoTime() + nanos;
825	>	do {
826		if (millis > 0L)
827		Thread.sleep(millis);
828		else // too short to sleep
829		Thread.yield();
830	<	long d = ns - (System.nanoTime() - startTime);
831	<	if (d > 0L)
832	<	millis = d / (1000 * 1000);
833	<	else
834	<	break;
830	>	nanos = wakeupTime - System.nanoTime();
831	>	millis = nanos / (1000 * 1000);
832	>	} while (nanos >= 0L);
833	>	}
834	>
835	>	/**
836	>	* Allows use of try-with-resources with per-test thread pools.
837	>	*/
838	>	class PoolCleaner implements AutoCloseable {
839	>	private final ExecutorService pool;
840	>	public PoolCleaner(ExecutorService pool) { this.pool = pool; }
841	>	public void close() { joinPool(pool); }
842	>	}
843	>
844	>	/**
845	>	* An extension of PoolCleaner that has an action to release the pool.
846	>	*/
847	>	class PoolCleanerWithReleaser extends PoolCleaner {
848	>	private final Runnable releaser;
849	>	public PoolCleanerWithReleaser(ExecutorService pool, Runnable releaser) {
850	>	super(pool);
851	>	this.releaser = releaser;
852	>	}
853	>	public void close() {
854	>	try {
855	>	releaser.run();
856	>	} finally {
857	>	super.close();
858	>	}
859		}
860		}
861
862	+	PoolCleaner cleaner(ExecutorService pool) {
863	+	return new PoolCleaner(pool);
864	+	}
865	+
866	+	PoolCleaner cleaner(ExecutorService pool, Runnable releaser) {
867	+	return new PoolCleanerWithReleaser(pool, releaser);
868	+	}
869	+
870	+	PoolCleaner cleaner(ExecutorService pool, CountDownLatch latch) {
871	+	return new PoolCleanerWithReleaser(pool, releaser(latch));
872	+	}
873	+
874	+	Runnable releaser(final CountDownLatch latch) {
875	+	return new Runnable() { public void run() {
876	+	do { latch.countDown(); }
877	+	while (latch.getCount() > 0);
878	+	}};
879	+	}
880	+
881		/**
882		* Waits out termination of a thread pool or fails doing so.
883		*/
884	<	public void joinPool(ExecutorService exec) {
884	>	void joinPool(ExecutorService pool) {
885		try {
886	<	exec.shutdown();
887	<	assertTrue("ExecutorService did not terminate in a timely manner",
888	<	exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS));
886	>	pool.shutdown();
887	>	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)) {
888	>	try {
889	>	threadFail("ExecutorService " + pool +
890	>	" did not terminate in a timely manner");
891	>	} finally {
892	>	// last resort, for the benefit of subsequent tests
893	>	pool.shutdownNow();
894	>	pool.awaitTermination(MEDIUM_DELAY_MS, MILLISECONDS);
895	>	}
896	>	}
897		} catch (SecurityException ok) {
898		// Allowed in case test doesn't have privs
899	<	} catch (InterruptedException ie) {
900	<	fail("Unexpected InterruptedException");
899	>	} catch (InterruptedException fail) {
900	>	threadFail("Unexpected InterruptedException");
901		}
902		}
903
904	+	/** Like Runnable, but with the freedom to throw anything */
905	+	interface Action { public void run() throws Throwable; }
906	+
907	+	/**
908	+	* Runs all the given actions in parallel, failing if any fail.
909	+	* Useful for running multiple variants of tests that are
910	+	* necessarily individually slow because they must block.
911	+	*/
912	+	void testInParallel(Action ... actions) {
913	+	ExecutorService pool = Executors.newCachedThreadPool();
914	+	try (PoolCleaner cleaner = cleaner(pool)) {
915	+	ArrayList<Future<?>> futures = new ArrayList<>(actions.length);
916	+	for (final Action action : actions)
917	+	futures.add(pool.submit(new CheckedRunnable() {
918	+	public void realRun() throws Throwable { action.run();}}));
919	+	for (Future<?> future : futures)
920	+	try {
921	+	assertNull(future.get(LONG_DELAY_MS, MILLISECONDS));
922	+	} catch (ExecutionException ex) {
923	+	threadUnexpectedException(ex.getCause());
924	+	} catch (Exception ex) {
925	+	threadUnexpectedException(ex);
926	+	}
927	+	}
928	+	}
929	+
930	+	/**
931	+	* A debugging tool to print stack traces of most threads, as jstack does.
932	+	* Uninteresting threads are filtered out.
933	+	*/
934	+	static void dumpTestThreads() {
935	+	ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
936	+	System.err.println("------ stacktrace dump start ------");
937	+	for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) {
938	+	String name = info.getThreadName();
939	+	if ("Signal Dispatcher".equals(name))
940	+	continue;
941	+	if ("Reference Handler".equals(name)
942	+	&& info.getLockName().startsWith("java.lang.ref.Reference$Lock"))
943	+	continue;
944	+	if ("Finalizer".equals(name)
945	+	&& info.getLockName().startsWith("java.lang.ref.ReferenceQueue$Lock"))
946	+	continue;
947	+	if ("checkForWedgedTest".equals(name))
948	+	continue;
949	+	System.err.print(info);
950	+	}
951	+	System.err.println("------ stacktrace dump end ------");
952	+	}
953	+
954	+	/**
955	+	* Checks that thread does not terminate within the default
956	+	* millisecond delay of {@code timeoutMillis()}.
957	+	*/
958	+	void assertThreadStaysAlive(Thread thread) {
959	+	assertThreadStaysAlive(thread, timeoutMillis());
960	+	}
961	+
962		/**
963		* Checks that thread does not terminate within the given millisecond delay.
964		*/
965	<	public void assertThreadStaysAlive(Thread thread, long millis) {
965	>	void assertThreadStaysAlive(Thread thread, long millis) {
966		try {
967		// No need to optimize the failing case via Thread.join.
968		delay(millis);
969		assertTrue(thread.isAlive());
970	<	} catch (InterruptedException ie) {
971	<	fail("Unexpected InterruptedException");
970	>	} catch (InterruptedException fail) {
971	>	threadFail("Unexpected InterruptedException");
972	>	}
973	>	}
974	>
975	>	/**
976	>	* Checks that the threads do not terminate within the default
977	>	* millisecond delay of {@code timeoutMillis()}.
978	>	*/
979	>	void assertThreadsStayAlive(Thread... threads) {
980	>	assertThreadsStayAlive(timeoutMillis(), threads);
981	>	}
982	>
983	>	/**
984	>	* Checks that the threads do not terminate within the given millisecond delay.
985	>	*/
986	>	void assertThreadsStayAlive(long millis, Thread... threads) {
987	>	try {
988	>	// No need to optimize the failing case via Thread.join.
989	>	delay(millis);
990	>	for (Thread thread : threads)
991	>	assertTrue(thread.isAlive());
992	>	} catch (InterruptedException fail) {
993	>	threadFail("Unexpected InterruptedException");
994		}
995		}
996
997		/**
998	+	* Checks that future.get times out, with the default timeout of
999	+	* {@code timeoutMillis()}.
1000	+	*/
1001	+	void assertFutureTimesOut(Future future) {
1002	+	assertFutureTimesOut(future, timeoutMillis());
1003	+	}
1004	+
1005	+	/**
1006	+	* Checks that future.get times out, with the given millisecond timeout.
1007	+	*/
1008	+	void assertFutureTimesOut(Future future, long timeoutMillis) {
1009	+	long startTime = System.nanoTime();
1010	+	try {
1011	+	future.get(timeoutMillis, MILLISECONDS);
1012	+	shouldThrow();
1013	+	} catch (TimeoutException success) {
1014	+	} catch (Exception fail) {
1015	+	threadUnexpectedException(fail);
1016	+	} finally { future.cancel(true); }
1017	+	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
1018	+	}
1019	+
1020	+	/**
1021		* Fails with message "should throw exception".
1022		*/
1023		public void shouldThrow() {
#	Line 534 | Line 1056 | public class JSR166TestCase extends Test
1056		public static final Integer m6  = new Integer(-6);
1057		public static final Integer m10 = new Integer(-10);
1058
537	–
1059		/**
1060		* Runs Runnable r with a security policy that permits precisely
1061		* the specified permissions.  If there is no current security
#	Line 546 | Line 1067 | public class JSR166TestCase extends Test
1067		SecurityManager sm = System.getSecurityManager();
1068		if (sm == null) {
1069		r.run();
1070	+	}
1071	+	runWithSecurityManagerWithPermissions(r, permissions);
1072	+	}
1073	+
1074	+	/**
1075	+	* Runs Runnable r with a security policy that permits precisely
1076	+	* the specified permissions.  If there is no current security
1077	+	* manager, a temporary one is set for the duration of the
1078	+	* Runnable.  We require that any security manager permit
1079	+	* getPolicy/setPolicy.
1080	+	*/
1081	+	public void runWithSecurityManagerWithPermissions(Runnable r,
1082	+	Permission... permissions) {
1083	+	SecurityManager sm = System.getSecurityManager();
1084	+	if (sm == null) {
1085		Policy savedPolicy = Policy.getPolicy();
1086		try {
1087		Policy.setPolicy(permissivePolicy());
1088		System.setSecurityManager(new SecurityManager());
1089	<	runWithPermissions(r, permissions);
1089	>	runWithSecurityManagerWithPermissions(r, permissions);
1090		} finally {
1091		System.setSecurityManager(null);
1092		Policy.setPolicy(savedPolicy);
#	Line 598 | Line 1134 | public class JSR166TestCase extends Test
1134		return perms.implies(p);
1135		}
1136		public void refresh() {}
1137	+	public String toString() {
1138	+	List<Permission> ps = new ArrayList<Permission>();
1139	+	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
1140	+	ps.add(e.nextElement());
1141	+	return "AdjustablePolicy with permissions " + ps;
1142	+	}
1143		}
1144
1145		/**
#	Line 626 | Line 1168 | public class JSR166TestCase extends Test
1168		void sleep(long millis) {
1169		try {
1170		delay(millis);
1171	<	} catch (InterruptedException ie) {
1171	>	} catch (InterruptedException fail) {
1172		AssertionFailedError afe =
1173		new AssertionFailedError("Unexpected InterruptedException");
1174	<	afe.initCause(ie);
1174	>	afe.initCause(fail);
1175		throw afe;
1176		}
1177		}
1178
1179		/**
1180	<	* Sleeps until the timeout has elapsed, or interrupted.
639	<	* Does <em>NOT</em> throw InterruptedException.
640	<	*/
641	<	void sleepTillInterrupted(long timeoutMillis) {
642	<	try {
643	<	Thread.sleep(timeoutMillis);
644	<	} catch (InterruptedException wakeup) {}
645	<	}
646	<
647	<	/**
648	<	* Waits up to the specified number of milliseconds for the given
1180	>	* Spin-waits up to the specified number of milliseconds for the given
1181		* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1182		*/
1183		void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1184	<	long timeoutNanos = timeoutMillis * 1000L * 1000L;
653	<	long t0 = System.nanoTime();
1184	>	long startTime = System.nanoTime();
1185		for (;;) {
1186		Thread.State s = thread.getState();
1187		if (s == Thread.State.BLOCKED ||
#	Line 659 | Line 1190 | public class JSR166TestCase extends Test
1190		return;
1191		else if (s == Thread.State.TERMINATED)
1192		fail("Unexpected thread termination");
1193	<	else if (System.nanoTime() - t0 > timeoutNanos) {
1193	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
1194		threadAssertTrue(thread.isAlive());
1195		return;
1196		}
#	Line 678 | Line 1209 | public class JSR166TestCase extends Test
1209		/**
1210		* Returns the number of milliseconds since time given by
1211		* startNanoTime, which must have been previously returned from a
1212	<	* call to {@link System.nanoTime()}.
1212	>	* call to {@link System#nanoTime()}.
1213		*/
1214	<	long millisElapsedSince(long startNanoTime) {
1214	>	static long millisElapsedSince(long startNanoTime) {
1215		return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
1216		}
1217
1218	+	//     void assertTerminatesPromptly(long timeoutMillis, Runnable r) {
1219	+	//         long startTime = System.nanoTime();
1220	+	//         try {
1221	+	//             r.run();
1222	+	//         } catch (Throwable fail) { threadUnexpectedException(fail); }
1223	+	//         if (millisElapsedSince(startTime) > timeoutMillis/2)
1224	+	//             throw new AssertionFailedError("did not return promptly");
1225	+	//     }
1226	+
1227	+	//     void assertTerminatesPromptly(Runnable r) {
1228	+	//         assertTerminatesPromptly(LONG_DELAY_MS/2, r);
1229	+	//     }
1230	+
1231	+	/**
1232	+	* Checks that timed f.get() returns the expected value, and does not
1233	+	* wait for the timeout to elapse before returning.
1234	+	*/
1235	+	<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
1236	+	long startTime = System.nanoTime();
1237	+	try {
1238	+	assertEquals(expectedValue, f.get(timeoutMillis, MILLISECONDS));
1239	+	} catch (Throwable fail) { threadUnexpectedException(fail); }
1240	+	if (millisElapsedSince(startTime) > timeoutMillis/2)
1241	+	throw new AssertionFailedError("timed get did not return promptly");
1242	+	}
1243	+
1244	+	<T> void checkTimedGet(Future<T> f, T expectedValue) {
1245	+	checkTimedGet(f, expectedValue, LONG_DELAY_MS);
1246	+	}
1247	+
1248		/**
1249		* Returns a new started daemon Thread running the given runnable.
1250		*/
#	Line 702 | Line 1263 | public class JSR166TestCase extends Test
1263		void awaitTermination(Thread t, long timeoutMillis) {
1264		try {
1265		t.join(timeoutMillis);
1266	<	} catch (InterruptedException ie) {
1267	<	threadUnexpectedException(ie);
1266	>	} catch (InterruptedException fail) {
1267	>	threadUnexpectedException(fail);
1268		} finally {
1269	<	if (t.isAlive()) {
1269	>	if (t.getState() != Thread.State.TERMINATED) {
1270		t.interrupt();
1271	<	fail("Test timed out");
1271	>	threadFail("timed out waiting for thread to terminate");
1272		}
1273		}
1274		}
#	Line 729 | Line 1290 | public class JSR166TestCase extends Test
1290		public final void run() {
1291		try {
1292		realRun();
1293	<	} catch (Throwable t) {
1294	<	threadUnexpectedException(t);
1293	>	} catch (Throwable fail) {
1294	>	threadUnexpectedException(fail);
1295		}
1296		}
1297		}
#	Line 783 | Line 1344 | public class JSR166TestCase extends Test
1344		realRun();
1345		threadShouldThrow("InterruptedException");
1346		} catch (InterruptedException success) {
1347	<	} catch (Throwable t) {
1348	<	threadUnexpectedException(t);
1347	>	threadAssertFalse(Thread.interrupted());
1348	>	} catch (Throwable fail) {
1349	>	threadUnexpectedException(fail);
1350		}
1351		}
1352		}
#	Line 795 | Line 1357 | public class JSR166TestCase extends Test
1357		public final T call() {
1358		try {
1359		return realCall();
1360	<	} catch (Throwable t) {
1361	<	threadUnexpectedException(t);
1360	>	} catch (Throwable fail) {
1361	>	threadUnexpectedException(fail);
1362		return null;
1363		}
1364		}
#	Line 812 | Line 1374 | public class JSR166TestCase extends Test
1374		threadShouldThrow("InterruptedException");
1375		return result;
1376		} catch (InterruptedException success) {
1377	<	} catch (Throwable t) {
1378	<	threadUnexpectedException(t);
1377	>	threadAssertFalse(Thread.interrupted());
1378	>	} catch (Throwable fail) {
1379	>	threadUnexpectedException(fail);
1380		}
1381		return null;
1382		}
#	Line 830 | Line 1393 | public class JSR166TestCase extends Test
1393		public static final String TEST_STRING = "a test string";
1394
1395		public static class StringTask implements Callable<String> {
1396	<	public String call() { return TEST_STRING; }
1396	>	final String value;
1397	>	public StringTask() { this(TEST_STRING); }
1398	>	public StringTask(String value) { this.value = value; }
1399	>	public String call() { return value; }
1400		}
1401
1402		public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
#	Line 843 | Line 1409 | public class JSR166TestCase extends Test
1409		}};
1410		}
1411
1412	<	public Runnable awaiter(final CountDownLatch latch) {
1412	>	public Runnable countDowner(final CountDownLatch latch) {
1413		return new CheckedRunnable() {
1414		public void realRun() throws InterruptedException {
1415	<	await(latch);
1415	>	latch.countDown();
1416		}};
1417		}
1418
1419	+	class LatchAwaiter extends CheckedRunnable {
1420	+	static final int NEW = 0;
1421	+	static final int RUNNING = 1;
1422	+	static final int DONE = 2;
1423	+	final CountDownLatch latch;
1424	+	int state = NEW;
1425	+	LatchAwaiter(CountDownLatch latch) { this.latch = latch; }
1426	+	public void realRun() throws InterruptedException {
1427	+	state = 1;
1428	+	await(latch);
1429	+	state = 2;
1430	+	}
1431	+	}
1432	+
1433	+	public LatchAwaiter awaiter(CountDownLatch latch) {
1434	+	return new LatchAwaiter(latch);
1435	+	}
1436	+
1437		public void await(CountDownLatch latch) {
1438		try {
1439	<	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1440	<	} catch (Throwable t) {
1441	<	threadUnexpectedException(t);
1439	>	if (!latch.await(LONG_DELAY_MS, MILLISECONDS))
1440	>	fail("timed out waiting for CountDownLatch for "
1441	>	+ (LONG_DELAY_MS/1000) + " sec");
1442	>	} catch (Throwable fail) {
1443	>	threadUnexpectedException(fail);
1444	>	}
1445	>	}
1446	>
1447	>	public void await(Semaphore semaphore) {
1448	>	try {
1449	>	if (!semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS))
1450	>	fail("timed out waiting for Semaphore for "
1451	>	+ (LONG_DELAY_MS/1000) + " sec");
1452	>	} catch (Throwable fail) {
1453	>	threadUnexpectedException(fail);
1454		}
1455		}
1456
1457	+	//     /**
1458	+	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1459	+	//      */
1460	+	//     public void await(AtomicBoolean flag) {
1461	+	//         await(flag, LONG_DELAY_MS);
1462	+	//     }
1463	+
1464	+	//     /**
1465	+	//      * Spin-waits up to the specified timeout until flag becomes true.
1466	+	//      */
1467	+	//     public void await(AtomicBoolean flag, long timeoutMillis) {
1468	+	//         long startTime = System.nanoTime();
1469	+	//         while (!flag.get()) {
1470	+	//             if (millisElapsedSince(startTime) > timeoutMillis)
1471	+	//                 throw new AssertionFailedError("timed out");
1472	+	//             Thread.yield();
1473	+	//         }
1474	+	//     }
1475	+
1476		public static class NPETask implements Callable<String> {
1477		public String call() { throw new NullPointerException(); }
1478		}
#	Line 1026 | Line 1641 | public class JSR166TestCase extends Test
1641		public abstract class CheckedRecursiveAction extends RecursiveAction {
1642		protected abstract void realCompute() throws Throwable;
1643
1644	<	public final void compute() {
1644	>	@Override protected final void compute() {
1645		try {
1646		realCompute();
1647	<	} catch (Throwable t) {
1648	<	threadUnexpectedException(t);
1647	>	} catch (Throwable fail) {
1648	>	threadUnexpectedException(fail);
1649		}
1650		}
1651		}
#	Line 1041 | Line 1656 | public class JSR166TestCase extends Test
1656		public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1657		protected abstract T realCompute() throws Throwable;
1658
1659	<	public final T compute() {
1659	>	@Override protected final T compute() {
1660		try {
1661		return realCompute();
1662	<	} catch (Throwable t) {
1663	<	threadUnexpectedException(t);
1662	>	} catch (Throwable fail) {
1663	>	threadUnexpectedException(fail);
1664		return null;
1665		}
1666		}
#	Line 1060 | Line 1675 | public class JSR166TestCase extends Test
1675		}
1676
1677		/**
1678	<	* A CyclicBarrier that fails with AssertionFailedErrors instead
1679	<	* of throwing checked exceptions.
1678	>	* A CyclicBarrier that uses timed await and fails with
1679	>	* AssertionFailedErrors instead of throwing checked exceptions.
1680		*/
1681		public class CheckedBarrier extends CyclicBarrier {
1682		public CheckedBarrier(int parties) { super(parties); }
1683
1684		public int await() {
1685		try {
1686	<	return super.await();
1687	<	} catch (Exception e) {
1686	>	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1687	>	} catch (TimeoutException timedOut) {
1688	>	throw new AssertionFailedError("timed out");
1689	>	} catch (Exception fail) {
1690		AssertionFailedError afe =
1691	<	new AssertionFailedError("Unexpected exception: " + e);
1692	<	afe.initCause(e);
1691	>	new AssertionFailedError("Unexpected exception: " + fail);
1692	>	afe.initCause(fail);
1693		throw afe;
1694		}
1695		}
1696		}
1697
1698	<	public void checkEmpty(BlockingQueue q) {
1698	>	void checkEmpty(BlockingQueue q) {
1699		try {
1700		assertTrue(q.isEmpty());
1701		assertEquals(0, q.size());
#	Line 1100 | Line 1717 | public class JSR166TestCase extends Test
1717		q.remove();
1718		shouldThrow();
1719		} catch (NoSuchElementException success) {}
1720	<	} catch (InterruptedException ie) {
1104	<	threadUnexpectedException(ie);
1105	<	}
1720	>	} catch (InterruptedException fail) { threadUnexpectedException(fail); }
1721		}
1722
1723	<	@SuppressWarnings("unchecked")
1724	<	public <T> T serialClone(T o) {
1723	>	void assertSerialEquals(Object x, Object y) {
1724	>	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1725	>	}
1726	>
1727	>	void assertNotSerialEquals(Object x, Object y) {
1728	>	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1729	>	}
1730	>
1731	>	byte[] serialBytes(Object o) {
1732		try {
1733		ByteArrayOutputStream bos = new ByteArrayOutputStream();
1734		ObjectOutputStream oos = new ObjectOutputStream(bos);
1735		oos.writeObject(o);
1736		oos.flush();
1737		oos.close();
1738	<	ByteArrayInputStream bin =
1739	<	new ByteArrayInputStream(bos.toByteArray());
1740	<	ObjectInputStream ois = new ObjectInputStream(bin);
1741	<	return (T) ois.readObject();
1742	<	} catch (Throwable t) {
1743	<	threadUnexpectedException(t);
1738	>	return bos.toByteArray();
1739	>	} catch (Throwable fail) {
1740	>	threadUnexpectedException(fail);
1741	>	return new byte[0];
1742	>	}
1743	>	}
1744	>
1745	>	@SuppressWarnings("unchecked")
1746	>	<T> T serialClone(T o) {
1747	>	try {
1748	>	ObjectInputStream ois = new ObjectInputStream
1749	>	(new ByteArrayInputStream(serialBytes(o)));
1750	>	T clone = (T) ois.readObject();
1751	>	assertSame(o.getClass(), clone.getClass());
1752	>	return clone;
1753	>	} catch (Throwable fail) {
1754	>	threadUnexpectedException(fail);
1755		return null;
1756		}
1757		}
1758	+
1759	+	public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1760	+	Runnable... throwingActions) {
1761	+	for (Runnable throwingAction : throwingActions) {
1762	+	boolean threw = false;
1763	+	try { throwingAction.run(); }
1764	+	catch (Throwable t) {
1765	+	threw = true;
1766	+	if (!expectedExceptionClass.isInstance(t)) {
1767	+	AssertionFailedError afe =
1768	+	new AssertionFailedError
1769	+	("Expected " + expectedExceptionClass.getName() +
1770	+	", got " + t.getClass().getName());
1771	+	afe.initCause(t);
1772	+	threadUnexpectedException(afe);
1773	+	}
1774	+	}
1775	+	if (!threw)
1776	+	shouldThrow(expectedExceptionClass.getName());
1777	+	}
1778	+	}
1779	+
1780	+	public void assertIteratorExhausted(Iterator<?> it) {
1781	+	try {
1782	+	it.next();
1783	+	shouldThrow();
1784	+	} catch (NoSuchElementException success) {}
1785	+	assertFalse(it.hasNext());
1786	+	}
1787		}

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