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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.74 by jsr166, Tue Mar 15 19:47:06 2011 UTC vs.
Revision 1.190 by jsr166, Sat Mar 26 06:58:47 2016 UTC

#	Line 6 | Line 6
6		* Pat Fisher, Mike Judd.
7		*/
8
9	<	import junit.framework.*;
10	<	import java.util.Arrays;
11	<	import java.util.NoSuchElementException;
12	<	import java.util.PropertyPermission;
13	<	import java.util.concurrent.*;
14	<	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 21 | 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 32 | 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 54 | 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
75	<	* 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 103 | Line 152 | public class JSR166TestCase extends Test
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		*/
#	Line 116 | Line 172 | public class JSR166TestCase extends Test
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	<	if (profileTests)
293	<	runTestProfiled();
294	<	else
295	<	super.runTest();
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	<	long t0 = System.nanoTime();
303	<	try {
302	>	for (int i = 0; i < 2; i++) {
303	>	long startTime = System.nanoTime();
304		super.runTest();
305	<	} finally {
306	<	long elapsedMillis =
307	<	(System.nanoTime() - t0) / (1000L * 1000L);
308	<	if (elapsedMillis >= profileThreshold)
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) {
151	<	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		}
155	–	System.exit(0);
367		}
368
369		public static TestSuite newTestSuite(Object... suiteOrClasses) {
#	Line 168 | Line 379 | public class JSR166TestCase extends Test
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.
428		*/
429		public static Test suite() {
430	<	return newTestSuite(
430	>	// Java7+ test classes
431	>	TestSuite suite = newTestSuite(
432		ForkJoinPoolTest.suite(),
433		ForkJoinTaskTest.suite(),
434		RecursiveActionTest.suite(),
#	Line 237 | Line 493 | public class JSR166TestCase extends Test
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	+	"TimeUnit8Test",
515	+	};
516	+	addNamedTestClasses(suite, java8TestClassNames);
517	+	}
518	+
519	+	// Java9+ test classes
520	+	if (atLeastJava9()) {
521	+	String[] java9TestClassNames = {
522	+	// Currently empty, but expecting varhandle tests
523	+	};
524	+	addNamedTestClasses(suite, java9TestClassNames);
525	+	}
526	+
527	+	return suite;
528		}
529
530	+	/** Returns list of junit-style test method names in given class. */
531	+	public static ArrayList<String> testMethodNames(Class<?> testClass) {
532	+	Method[] methods = testClass.getDeclaredMethods();
533	+	ArrayList<String> names = new ArrayList<String>(methods.length);
534	+	for (Method method : methods) {
535	+	if (method.getName().startsWith("test")
536	+	&& Modifier.isPublic(method.getModifiers())
537	+	// method.getParameterCount() requires jdk8+
538	+	&& method.getParameterTypes().length == 0) {
539	+	names.add(method.getName());
540	+	}
541	+	}
542	+	return names;
543	+	}
544	+
545	+	/**
546	+	* Returns junit-style testSuite for the given test class, but
547	+	* parameterized by passing extra data to each test.
548	+	*/
549	+	public static <ExtraData> Test parameterizedTestSuite
550	+	(Class<? extends JSR166TestCase> testClass,
551	+	Class<ExtraData> dataClass,
552	+	ExtraData data) {
553	+	try {
554	+	TestSuite suite = new TestSuite();
555	+	Constructor c =
556	+	testClass.getDeclaredConstructor(dataClass, String.class);
557	+	for (String methodName : testMethodNames(testClass))
558	+	suite.addTest((Test) c.newInstance(data, methodName));
559	+	return suite;
560	+	} catch (Exception e) {
561	+	throw new Error(e);
562	+	}
563	+	}
564	+
565	+	/**
566	+	* Returns junit-style testSuite for the jdk8 extension of the
567	+	* given test class, but parameterized by passing extra data to
568	+	* each test.  Uses reflection to allow compilation in jdk7.
569	+	*/
570	+	public static <ExtraData> Test jdk8ParameterizedTestSuite
571	+	(Class<? extends JSR166TestCase> testClass,
572	+	Class<ExtraData> dataClass,
573	+	ExtraData data) {
574	+	if (atLeastJava8()) {
575	+	String name = testClass.getName();
576	+	String name8 = name.replaceAll("Test$", "8Test");
577	+	if (name.equals(name8)) throw new Error(name);
578	+	try {
579	+	return (Test)
580	+	Class.forName(name8)
581	+	.getMethod("testSuite", new Class[] { dataClass })
582	+	.invoke(null, data);
583	+	} catch (Exception e) {
584	+	throw new Error(e);
585	+	}
586	+	} else {
587	+	return new TestSuite();
588	+	}
589	+	}
590	+
591	+	// Delays for timing-dependent tests, in milliseconds.
592
593		public static long SHORT_DELAY_MS;
594		public static long SMALL_DELAY_MS;
595		public static long MEDIUM_DELAY_MS;
596		public static long LONG_DELAY_MS;
597
248	–
598		/**
599	<	* Returns the shortest timed delay. This could
600	<	* be reimplemented to use for example a Property.
599	>	* Returns the shortest timed delay. This can be scaled up for
600	>	* slow machines using the jsr166.delay.factor system property,
601	>	* or via jtreg's -timeoutFactor: flag.
602	>	* http://openjdk.java.net/jtreg/command-help.html
603		*/
604		protected long getShortDelay() {
605	<	return 50;
605	>	return (long) (50 * delayFactor);
606		}
607
257	–
608		/**
609		* Sets delays as multiples of SHORT_DELAY.
610		*/
#	Line 266 | Line 616 | public class JSR166TestCase extends Test
616		}
617
618		/**
619	+	* Returns a timeout in milliseconds to be used in tests that
620	+	* verify that operations block or time out.
621	+	*/
622	+	long timeoutMillis() {
623	+	return SHORT_DELAY_MS / 4;
624	+	}
625	+
626	+	/**
627	+	* Returns a new Date instance representing a time at least
628	+	* delayMillis milliseconds in the future.
629	+	*/
630	+	Date delayedDate(long delayMillis) {
631	+	// Add 1 because currentTimeMillis is known to round into the past.
632	+	return new Date(System.currentTimeMillis() + delayMillis + 1);
633	+	}
634	+
635	+	/**
636		* The first exception encountered if any threadAssertXXX method fails.
637		*/
638		private final AtomicReference<Throwable> threadFailure
#	Line 278 | Line 645 | public class JSR166TestCase extends Test
645		* the same test have no effect.
646		*/
647		public void threadRecordFailure(Throwable t) {
648	+	System.err.println(t);
649	+	dumpTestThreads();
650		threadFailure.compareAndSet(null, t);
651		}
652
#	Line 285 | Line 654 | public class JSR166TestCase extends Test
654		setDelays();
655		}
656
657	+	void tearDownFail(String format, Object... args) {
658	+	String msg = toString() + ": " + String.format(format, args);
659	+	System.err.println(msg);
660	+	dumpTestThreads();
661	+	throw new AssertionFailedError(msg);
662	+	}
663	+
664		/**
665	+	* Extra checks that get done for all test cases.
666	+	*
667		* Triggers test case failure if any thread assertions have failed,
668		* by rethrowing, in the test harness thread, any exception recorded
669		* earlier by threadRecordFailure.
670	+	*
671	+	* Triggers test case failure if interrupt status is set in the main thread.
672		*/
673		public void tearDown() throws Exception {
674		Throwable t = threadFailure.getAndSet(null);
#	Line 306 | Line 686 | public class JSR166TestCase extends Test
686		throw afe;
687		}
688		}
689	+
690	+	if (Thread.interrupted())
691	+	tearDownFail("interrupt status set in main thread");
692	+
693	+	checkForkJoinPoolThreadLeaks();
694	+	}
695	+
696	+	/**
697	+	* Finds missing PoolCleaners
698	+	*/
699	+	void checkForkJoinPoolThreadLeaks() throws InterruptedException {
700	+	Thread[] survivors = new Thread[7];
701	+	int count = Thread.enumerate(survivors);
702	+	for (int i = 0; i < count; i++) {
703	+	Thread thread = survivors[i];
704	+	String name = thread.getName();
705	+	if (name.startsWith("ForkJoinPool-")) {
706	+	// give thread some time to terminate
707	+	thread.join(LONG_DELAY_MS);
708	+	if (thread.isAlive())
709	+	tearDownFail("Found leaked ForkJoinPool thread thread=%s",
710	+	thread);
711	+	}
712	+	}
713	+
714	+	if (!ForkJoinPool.commonPool()
715	+	.awaitQuiescence(LONG_DELAY_MS, MILLISECONDS))
716	+	tearDownFail("ForkJoin common pool thread stuck");
717		}
718
719		/**
#	Line 318 | Line 726 | public class JSR166TestCase extends Test
726		fail(reason);
727		} catch (AssertionFailedError t) {
728		threadRecordFailure(t);
729	<	fail(reason);
729	>	throw t;
730		}
731		}
732
#	Line 386 | Line 794 | public class JSR166TestCase extends Test
794		public void threadAssertEquals(Object x, Object y) {
795		try {
796		assertEquals(x, y);
797	<	} catch (AssertionFailedError t) {
798	<	threadRecordFailure(t);
799	<	throw t;
800	<	} catch (Throwable t) {
801	<	threadUnexpectedException(t);
797	>	} catch (AssertionFailedError fail) {
798	>	threadRecordFailure(fail);
799	>	throw fail;
800	>	} catch (Throwable fail) {
801	>	threadUnexpectedException(fail);
802		}
803		}
804
#	Line 402 | Line 810 | public class JSR166TestCase extends Test
810		public void threadAssertSame(Object x, Object y) {
811		try {
812		assertSame(x, y);
813	<	} catch (AssertionFailedError t) {
814	<	threadRecordFailure(t);
815	<	throw t;
813	>	} catch (AssertionFailedError fail) {
814	>	threadRecordFailure(fail);
815	>	throw fail;
816		}
817		}
818
#	Line 437 | Line 845 | public class JSR166TestCase extends Test
845		else {
846		AssertionFailedError afe =
847		new AssertionFailedError("unexpected exception: " + t);
848	<	t.initCause(t);
848	>	afe.initCause(t);
849		throw afe;
850		}
851		}
852
853		/**
854	+	* Delays, via Thread.sleep, for the given millisecond delay, but
855	+	* if the sleep is shorter than specified, may re-sleep or yield
856	+	* until time elapses.  Ensures that the given time, as measured
857	+	* by System.nanoTime(), has elapsed.
858	+	*/
859	+	static void delay(long millis) throws InterruptedException {
860	+	long nanos = millis * (1000 * 1000);
861	+	final long wakeupTime = System.nanoTime() + nanos;
862	+	do {
863	+	if (millis > 0L)
864	+	Thread.sleep(millis);
865	+	else // too short to sleep
866	+	Thread.yield();
867	+	nanos = wakeupTime - System.nanoTime();
868	+	millis = nanos / (1000 * 1000);
869	+	} while (nanos >= 0L);
870	+	}
871	+
872	+	/**
873	+	* Allows use of try-with-resources with per-test thread pools.
874	+	*/
875	+	class PoolCleaner implements AutoCloseable {
876	+	private final ExecutorService pool;
877	+	public PoolCleaner(ExecutorService pool) { this.pool = pool; }
878	+	public void close() { joinPool(pool); }
879	+	}
880	+
881	+	/**
882	+	* An extension of PoolCleaner that has an action to release the pool.
883	+	*/
884	+	class PoolCleanerWithReleaser extends PoolCleaner {
885	+	private final Runnable releaser;
886	+	public PoolCleanerWithReleaser(ExecutorService pool, Runnable releaser) {
887	+	super(pool);
888	+	this.releaser = releaser;
889	+	}
890	+	public void close() {
891	+	try {
892	+	releaser.run();
893	+	} finally {
894	+	super.close();
895	+	}
896	+	}
897	+	}
898	+
899	+	PoolCleaner cleaner(ExecutorService pool) {
900	+	return new PoolCleaner(pool);
901	+	}
902	+
903	+	PoolCleaner cleaner(ExecutorService pool, Runnable releaser) {
904	+	return new PoolCleanerWithReleaser(pool, releaser);
905	+	}
906	+
907	+	PoolCleaner cleaner(ExecutorService pool, CountDownLatch latch) {
908	+	return new PoolCleanerWithReleaser(pool, releaser(latch));
909	+	}
910	+
911	+	Runnable releaser(final CountDownLatch latch) {
912	+	return new Runnable() { public void run() {
913	+	do { latch.countDown(); }
914	+	while (latch.getCount() > 0);
915	+	}};
916	+	}
917	+
918	+	PoolCleaner cleaner(ExecutorService pool, AtomicBoolean flag) {
919	+	return new PoolCleanerWithReleaser(pool, releaser(flag));
920	+	}
921	+
922	+	Runnable releaser(final AtomicBoolean flag) {
923	+	return new Runnable() { public void run() { flag.set(true); }};
924	+	}
925	+
926	+	/**
927		* Waits out termination of a thread pool or fails doing so.
928		*/
929	<	public void joinPool(ExecutorService exec) {
929	>	void joinPool(ExecutorService pool) {
930		try {
931	<	exec.shutdown();
932	<	assertTrue("ExecutorService did not terminate in a timely manner",
933	<	exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS));
931	>	pool.shutdown();
932	>	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)) {
933	>	try {
934	>	threadFail("ExecutorService " + pool +
935	>	" did not terminate in a timely manner");
936	>	} finally {
937	>	// last resort, for the benefit of subsequent tests
938	>	pool.shutdownNow();
939	>	pool.awaitTermination(MEDIUM_DELAY_MS, MILLISECONDS);
940	>	}
941	>	}
942		} catch (SecurityException ok) {
943		// Allowed in case test doesn't have privs
944	<	} catch (InterruptedException ie) {
945	<	fail("Unexpected InterruptedException");
944	>	} catch (InterruptedException fail) {
945	>	threadFail("Unexpected InterruptedException");
946	>	}
947	>	}
948	>
949	>	/** Like Runnable, but with the freedom to throw anything */
950	>	interface Action { public void run() throws Throwable; }
951	>
952	>	/**
953	>	* Runs all the given actions in parallel, failing if any fail.
954	>	* Useful for running multiple variants of tests that are
955	>	* necessarily individually slow because they must block.
956	>	*/
957	>	void testInParallel(Action ... actions) {
958	>	ExecutorService pool = Executors.newCachedThreadPool();
959	>	try (PoolCleaner cleaner = cleaner(pool)) {
960	>	ArrayList<Future<?>> futures = new ArrayList<>(actions.length);
961	>	for (final Action action : actions)
962	>	futures.add(pool.submit(new CheckedRunnable() {
963	>	public void realRun() throws Throwable { action.run();}}));
964	>	for (Future<?> future : futures)
965	>	try {
966	>	assertNull(future.get(LONG_DELAY_MS, MILLISECONDS));
967	>	} catch (ExecutionException ex) {
968	>	threadUnexpectedException(ex.getCause());
969	>	} catch (Exception ex) {
970	>	threadUnexpectedException(ex);
971	>	}
972	>	}
973	>	}
974	>
975	>	/**
976	>	* A debugging tool to print stack traces of most threads, as jstack does.
977	>	* Uninteresting threads are filtered out.
978	>	*/
979	>	static void dumpTestThreads() {
980	>	ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
981	>	System.err.println("------ stacktrace dump start ------");
982	>	for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) {
983	>	String name = info.getThreadName();
984	>	if ("Signal Dispatcher".equals(name))
985	>	continue;
986	>	if ("Reference Handler".equals(name)
987	>	&& info.getLockName().startsWith("java.lang.ref.Reference$Lock"))
988	>	continue;
989	>	if ("Finalizer".equals(name)
990	>	&& info.getLockName().startsWith("java.lang.ref.ReferenceQueue$Lock"))
991	>	continue;
992	>	if ("checkForWedgedTest".equals(name))
993	>	continue;
994	>	System.err.print(info);
995	>	}
996	>	System.err.println("------ stacktrace dump end ------");
997	>	}
998	>
999	>	/**
1000	>	* Checks that thread does not terminate within the default
1001	>	* millisecond delay of {@code timeoutMillis()}.
1002	>	*/
1003	>	void assertThreadStaysAlive(Thread thread) {
1004	>	assertThreadStaysAlive(thread, timeoutMillis());
1005	>	}
1006	>
1007	>	/**
1008	>	* Checks that thread does not terminate within the given millisecond delay.
1009	>	*/
1010	>	void assertThreadStaysAlive(Thread thread, long millis) {
1011	>	try {
1012	>	// No need to optimize the failing case via Thread.join.
1013	>	delay(millis);
1014	>	assertTrue(thread.isAlive());
1015	>	} catch (InterruptedException fail) {
1016	>	threadFail("Unexpected InterruptedException");
1017		}
1018		}
1019
1020	+	/**
1021	+	* Checks that the threads do not terminate within the default
1022	+	* millisecond delay of {@code timeoutMillis()}.
1023	+	*/
1024	+	void assertThreadsStayAlive(Thread... threads) {
1025	+	assertThreadsStayAlive(timeoutMillis(), threads);
1026	+	}
1027	+
1028	+	/**
1029	+	* Checks that the threads do not terminate within the given millisecond delay.
1030	+	*/
1031	+	void assertThreadsStayAlive(long millis, Thread... threads) {
1032	+	try {
1033	+	// No need to optimize the failing case via Thread.join.
1034	+	delay(millis);
1035	+	for (Thread thread : threads)
1036	+	assertTrue(thread.isAlive());
1037	+	} catch (InterruptedException fail) {
1038	+	threadFail("Unexpected InterruptedException");
1039	+	}
1040	+	}
1041	+
1042	+	/**
1043	+	* Checks that future.get times out, with the default timeout of
1044	+	* {@code timeoutMillis()}.
1045	+	*/
1046	+	void assertFutureTimesOut(Future future) {
1047	+	assertFutureTimesOut(future, timeoutMillis());
1048	+	}
1049	+
1050	+	/**
1051	+	* Checks that future.get times out, with the given millisecond timeout.
1052	+	*/
1053	+	void assertFutureTimesOut(Future future, long timeoutMillis) {
1054	+	long startTime = System.nanoTime();
1055	+	try {
1056	+	future.get(timeoutMillis, MILLISECONDS);
1057	+	shouldThrow();
1058	+	} catch (TimeoutException success) {
1059	+	} catch (Exception fail) {
1060	+	threadUnexpectedException(fail);
1061	+	} finally { future.cancel(true); }
1062	+	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
1063	+	}
1064
1065		/**
1066		* Fails with message "should throw exception".
#	Line 497 | Line 1101 | public class JSR166TestCase extends Test
1101		public static final Integer m6  = new Integer(-6);
1102		public static final Integer m10 = new Integer(-10);
1103
500	–
1104		/**
1105		* Runs Runnable r with a security policy that permits precisely
1106		* the specified permissions.  If there is no current security
#	Line 509 | Line 1112 | public class JSR166TestCase extends Test
1112		SecurityManager sm = System.getSecurityManager();
1113		if (sm == null) {
1114		r.run();
1115	+	}
1116	+	runWithSecurityManagerWithPermissions(r, permissions);
1117	+	}
1118	+
1119	+	/**
1120	+	* Runs Runnable r with a security policy that permits precisely
1121	+	* the specified permissions.  If there is no current security
1122	+	* manager, a temporary one is set for the duration of the
1123	+	* Runnable.  We require that any security manager permit
1124	+	* getPolicy/setPolicy.
1125	+	*/
1126	+	public void runWithSecurityManagerWithPermissions(Runnable r,
1127	+	Permission... permissions) {
1128	+	SecurityManager sm = System.getSecurityManager();
1129	+	if (sm == null) {
1130		Policy savedPolicy = Policy.getPolicy();
1131		try {
1132		Policy.setPolicy(permissivePolicy());
1133		System.setSecurityManager(new SecurityManager());
1134	<	runWithPermissions(r, permissions);
1134	>	runWithSecurityManagerWithPermissions(r, permissions);
1135		} finally {
1136		System.setSecurityManager(null);
1137		Policy.setPolicy(savedPolicy);
#	Line 561 | Line 1179 | public class JSR166TestCase extends Test
1179		return perms.implies(p);
1180		}
1181		public void refresh() {}
1182	+	public String toString() {
1183	+	List<Permission> ps = new ArrayList<Permission>();
1184	+	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
1185	+	ps.add(e.nextElement());
1186	+	return "AdjustablePolicy with permissions " + ps;
1187	+	}
1188		}
1189
1190		/**
#	Line 588 | Line 1212 | public class JSR166TestCase extends Test
1212		*/
1213		void sleep(long millis) {
1214		try {
1215	<	Thread.sleep(millis);
1216	<	} catch (InterruptedException ie) {
1215	>	delay(millis);
1216	>	} catch (InterruptedException fail) {
1217		AssertionFailedError afe =
1218		new AssertionFailedError("Unexpected InterruptedException");
1219	<	afe.initCause(ie);
1219	>	afe.initCause(fail);
1220		throw afe;
1221		}
1222		}
1223
1224		/**
1225	<	* Sleeps until the timeout has elapsed, or interrupted.
602	<	* Does <em>NOT</em> throw InterruptedException.
603	<	*/
604	<	void sleepTillInterrupted(long timeoutMillis) {
605	<	try {
606	<	Thread.sleep(timeoutMillis);
607	<	} catch (InterruptedException wakeup) {}
608	<	}
609	<
610	<	/**
611	<	* Waits up to the specified number of milliseconds for the given
1225	>	* Spin-waits up to the specified number of milliseconds for the given
1226		* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1227		*/
1228		void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1229	<	long timeoutNanos = timeoutMillis * 1000L * 1000L;
616	<	long t0 = System.nanoTime();
1229	>	long startTime = System.nanoTime();
1230		for (;;) {
1231		Thread.State s = thread.getState();
1232		if (s == Thread.State.BLOCKED ||
#	Line 622 | Line 1235 | public class JSR166TestCase extends Test
1235		return;
1236		else if (s == Thread.State.TERMINATED)
1237		fail("Unexpected thread termination");
1238	<	else if (System.nanoTime() - t0 > timeoutNanos) {
1238	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
1239		threadAssertTrue(thread.isAlive());
1240		return;
1241		}
#	Line 631 | Line 1244 | public class JSR166TestCase extends Test
1244		}
1245
1246		/**
1247	+	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
1248	+	* state: BLOCKED, WAITING, or TIMED_WAITING.
1249	+	*/
1250	+	void waitForThreadToEnterWaitState(Thread thread) {
1251	+	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
1252	+	}
1253	+
1254	+	/**
1255		* Returns the number of milliseconds since time given by
1256		* startNanoTime, which must have been previously returned from a
1257	<	* call to {@link System.nanoTime()}.
1257	>	* call to {@link System#nanoTime()}.
1258		*/
1259	<	long millisElapsedSince(long startNanoTime) {
1259	>	static long millisElapsedSince(long startNanoTime) {
1260		return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
1261		}
1262
1263	+	//     void assertTerminatesPromptly(long timeoutMillis, Runnable r) {
1264	+	//         long startTime = System.nanoTime();
1265	+	//         try {
1266	+	//             r.run();
1267	+	//         } catch (Throwable fail) { threadUnexpectedException(fail); }
1268	+	//         if (millisElapsedSince(startTime) > timeoutMillis/2)
1269	+	//             throw new AssertionFailedError("did not return promptly");
1270	+	//     }
1271	+
1272	+	//     void assertTerminatesPromptly(Runnable r) {
1273	+	//         assertTerminatesPromptly(LONG_DELAY_MS/2, r);
1274	+	//     }
1275	+
1276	+	/**
1277	+	* Checks that timed f.get() returns the expected value, and does not
1278	+	* wait for the timeout to elapse before returning.
1279	+	*/
1280	+	<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
1281	+	long startTime = System.nanoTime();
1282	+	try {
1283	+	assertEquals(expectedValue, f.get(timeoutMillis, MILLISECONDS));
1284	+	} catch (Throwable fail) { threadUnexpectedException(fail); }
1285	+	if (millisElapsedSince(startTime) > timeoutMillis/2)
1286	+	throw new AssertionFailedError("timed get did not return promptly");
1287	+	}
1288	+
1289	+	<T> void checkTimedGet(Future<T> f, T expectedValue) {
1290	+	checkTimedGet(f, expectedValue, LONG_DELAY_MS);
1291	+	}
1292	+
1293		/**
1294		* Returns a new started daemon Thread running the given runnable.
1295		*/
#	Line 657 | Line 1308 | public class JSR166TestCase extends Test
1308		void awaitTermination(Thread t, long timeoutMillis) {
1309		try {
1310		t.join(timeoutMillis);
1311	<	} catch (InterruptedException ie) {
1312	<	threadUnexpectedException(ie);
1311	>	} catch (InterruptedException fail) {
1312	>	threadUnexpectedException(fail);
1313		} finally {
1314	<	if (t.isAlive()) {
1314	>	if (t.getState() != Thread.State.TERMINATED) {
1315		t.interrupt();
1316	<	fail("Test timed out");
1316	>	threadFail("timed out waiting for thread to terminate");
1317		}
1318		}
1319		}
1320
1321	+	/**
1322	+	* Waits for LONG_DELAY_MS milliseconds for the thread to
1323	+	* terminate (using {@link Thread#join(long)}), else interrupts
1324	+	* the thread (in the hope that it may terminate later) and fails.
1325	+	*/
1326	+	void awaitTermination(Thread t) {
1327	+	awaitTermination(t, LONG_DELAY_MS);
1328	+	}
1329	+
1330		// Some convenient Runnable classes
1331
1332		public abstract class CheckedRunnable implements Runnable {
#	Line 675 | Line 1335 | public class JSR166TestCase extends Test
1335		public final void run() {
1336		try {
1337		realRun();
1338	<	} catch (Throwable t) {
1339	<	threadUnexpectedException(t);
1338	>	} catch (Throwable fail) {
1339	>	threadUnexpectedException(fail);
1340		}
1341		}
1342		}
#	Line 729 | Line 1389 | public class JSR166TestCase extends Test
1389		realRun();
1390		threadShouldThrow("InterruptedException");
1391		} catch (InterruptedException success) {
1392	<	} catch (Throwable t) {
1393	<	threadUnexpectedException(t);
1392	>	threadAssertFalse(Thread.interrupted());
1393	>	} catch (Throwable fail) {
1394	>	threadUnexpectedException(fail);
1395		}
1396		}
1397		}
#	Line 741 | Line 1402 | public class JSR166TestCase extends Test
1402		public final T call() {
1403		try {
1404		return realCall();
1405	<	} catch (Throwable t) {
1406	<	threadUnexpectedException(t);
1405	>	} catch (Throwable fail) {
1406	>	threadUnexpectedException(fail);
1407		return null;
1408		}
1409		}
#	Line 758 | Line 1419 | public class JSR166TestCase extends Test
1419		threadShouldThrow("InterruptedException");
1420		return result;
1421		} catch (InterruptedException success) {
1422	<	} catch (Throwable t) {
1423	<	threadUnexpectedException(t);
1422	>	threadAssertFalse(Thread.interrupted());
1423	>	} catch (Throwable fail) {
1424	>	threadUnexpectedException(fail);
1425		}
1426		return null;
1427		}
#	Line 776 | Line 1438 | public class JSR166TestCase extends Test
1438		public static final String TEST_STRING = "a test string";
1439
1440		public static class StringTask implements Callable<String> {
1441	<	public String call() { return TEST_STRING; }
1441	>	final String value;
1442	>	public StringTask() { this(TEST_STRING); }
1443	>	public StringTask(String value) { this.value = value; }
1444	>	public String call() { return value; }
1445		}
1446
1447		public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
#	Line 789 | Line 1454 | public class JSR166TestCase extends Test
1454		}};
1455		}
1456
1457	<	public Runnable awaiter(final CountDownLatch latch) {
1457	>	public Runnable countDowner(final CountDownLatch latch) {
1458		return new CheckedRunnable() {
1459		public void realRun() throws InterruptedException {
1460	<	latch.await();
1460	>	latch.countDown();
1461		}};
1462		}
1463
1464	+	class LatchAwaiter extends CheckedRunnable {
1465	+	static final int NEW = 0;
1466	+	static final int RUNNING = 1;
1467	+	static final int DONE = 2;
1468	+	final CountDownLatch latch;
1469	+	int state = NEW;
1470	+	LatchAwaiter(CountDownLatch latch) { this.latch = latch; }
1471	+	public void realRun() throws InterruptedException {
1472	+	state = 1;
1473	+	await(latch);
1474	+	state = 2;
1475	+	}
1476	+	}
1477	+
1478	+	public LatchAwaiter awaiter(CountDownLatch latch) {
1479	+	return new LatchAwaiter(latch);
1480	+	}
1481	+
1482	+	public void await(CountDownLatch latch, long timeoutMillis) {
1483	+	try {
1484	+	if (!latch.await(timeoutMillis, MILLISECONDS))
1485	+	fail("timed out waiting for CountDownLatch for "
1486	+	+ (timeoutMillis/1000) + " sec");
1487	+	} catch (Throwable fail) {
1488	+	threadUnexpectedException(fail);
1489	+	}
1490	+	}
1491	+
1492	+	public void await(CountDownLatch latch) {
1493	+	await(latch, LONG_DELAY_MS);
1494	+	}
1495	+
1496	+	public void await(Semaphore semaphore) {
1497	+	try {
1498	+	if (!semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS))
1499	+	fail("timed out waiting for Semaphore for "
1500	+	+ (LONG_DELAY_MS/1000) + " sec");
1501	+	} catch (Throwable fail) {
1502	+	threadUnexpectedException(fail);
1503	+	}
1504	+	}
1505	+
1506	+	//     /**
1507	+	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1508	+	//      */
1509	+	//     public void await(AtomicBoolean flag) {
1510	+	//         await(flag, LONG_DELAY_MS);
1511	+	//     }
1512	+
1513	+	//     /**
1514	+	//      * Spin-waits up to the specified timeout until flag becomes true.
1515	+	//      */
1516	+	//     public void await(AtomicBoolean flag, long timeoutMillis) {
1517	+	//         long startTime = System.nanoTime();
1518	+	//         while (!flag.get()) {
1519	+	//             if (millisElapsedSince(startTime) > timeoutMillis)
1520	+	//                 throw new AssertionFailedError("timed out");
1521	+	//             Thread.yield();
1522	+	//         }
1523	+	//     }
1524	+
1525		public static class NPETask implements Callable<String> {
1526		public String call() { throw new NullPointerException(); }
1527		}
#	Line 806 | Line 1532 | public class JSR166TestCase extends Test
1532
1533		public class ShortRunnable extends CheckedRunnable {
1534		protected void realRun() throws Throwable {
1535	<	Thread.sleep(SHORT_DELAY_MS);
1535	>	delay(SHORT_DELAY_MS);
1536		}
1537		}
1538
1539		public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1540		protected void realRun() throws InterruptedException {
1541	<	Thread.sleep(SHORT_DELAY_MS);
1541	>	delay(SHORT_DELAY_MS);
1542		}
1543		}
1544
1545		public class SmallRunnable extends CheckedRunnable {
1546		protected void realRun() throws Throwable {
1547	<	Thread.sleep(SMALL_DELAY_MS);
1547	>	delay(SMALL_DELAY_MS);
1548		}
1549		}
1550
1551		public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1552		protected void realRun() {
1553		try {
1554	<	Thread.sleep(SMALL_DELAY_MS);
1554	>	delay(SMALL_DELAY_MS);
1555		} catch (InterruptedException ok) {}
1556		}
1557		}
1558
1559		public class SmallCallable extends CheckedCallable {
1560		protected Object realCall() throws InterruptedException {
1561	<	Thread.sleep(SMALL_DELAY_MS);
1561	>	delay(SMALL_DELAY_MS);
1562		return Boolean.TRUE;
1563		}
1564		}
1565
1566		public class MediumRunnable extends CheckedRunnable {
1567		protected void realRun() throws Throwable {
1568	<	Thread.sleep(MEDIUM_DELAY_MS);
1568	>	delay(MEDIUM_DELAY_MS);
1569		}
1570		}
1571
1572		public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1573		protected void realRun() throws InterruptedException {
1574	<	Thread.sleep(MEDIUM_DELAY_MS);
1574	>	delay(MEDIUM_DELAY_MS);
1575		}
1576		}
1577
#	Line 853 | Line 1579 | public class JSR166TestCase extends Test
1579		return new CheckedRunnable() {
1580		protected void realRun() {
1581		try {
1582	<	Thread.sleep(timeoutMillis);
1582	>	delay(timeoutMillis);
1583		} catch (InterruptedException ok) {}
1584		}};
1585		}
#	Line 861 | Line 1587 | public class JSR166TestCase extends Test
1587		public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1588		protected void realRun() {
1589		try {
1590	<	Thread.sleep(MEDIUM_DELAY_MS);
1590	>	delay(MEDIUM_DELAY_MS);
1591		} catch (InterruptedException ok) {}
1592		}
1593		}
#	Line 869 | Line 1595 | public class JSR166TestCase extends Test
1595		public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1596		protected void realRun() {
1597		try {
1598	<	Thread.sleep(LONG_DELAY_MS);
1598	>	delay(LONG_DELAY_MS);
1599		} catch (InterruptedException ok) {}
1600		}
1601		}
#	Line 893 | Line 1619 | public class JSR166TestCase extends Test
1619		public boolean isDone() { return done; }
1620		public void run() {
1621		try {
1622	<	Thread.sleep(timeoutMillis);
1622	>	delay(timeoutMillis);
1623		done = true;
1624		} catch (InterruptedException ok) {}
1625		}
#	Line 904 | Line 1630 | public class JSR166TestCase extends Test
1630		public volatile boolean done = false;
1631		public void run() {
1632		try {
1633	<	Thread.sleep(SHORT_DELAY_MS);
1633	>	delay(SHORT_DELAY_MS);
1634		done = true;
1635		} catch (InterruptedException ok) {}
1636		}
#	Line 914 | Line 1640 | public class JSR166TestCase extends Test
1640		public volatile boolean done = false;
1641		public void run() {
1642		try {
1643	<	Thread.sleep(SMALL_DELAY_MS);
1643	>	delay(SMALL_DELAY_MS);
1644		done = true;
1645		} catch (InterruptedException ok) {}
1646		}
#	Line 924 | Line 1650 | public class JSR166TestCase extends Test
1650		public volatile boolean done = false;
1651		public void run() {
1652		try {
1653	<	Thread.sleep(MEDIUM_DELAY_MS);
1653	>	delay(MEDIUM_DELAY_MS);
1654		done = true;
1655		} catch (InterruptedException ok) {}
1656		}
#	Line 934 | Line 1660 | public class JSR166TestCase extends Test
1660		public volatile boolean done = false;
1661		public void run() {
1662		try {
1663	<	Thread.sleep(LONG_DELAY_MS);
1663	>	delay(LONG_DELAY_MS);
1664		done = true;
1665		} catch (InterruptedException ok) {}
1666		}
#	Line 951 | Line 1677 | public class JSR166TestCase extends Test
1677		public volatile boolean done = false;
1678		public Object call() {
1679		try {
1680	<	Thread.sleep(SMALL_DELAY_MS);
1680	>	delay(SMALL_DELAY_MS);
1681		done = true;
1682		} catch (InterruptedException ok) {}
1683		return Boolean.TRUE;
#	Line 964 | Line 1690 | public class JSR166TestCase extends Test
1690		public abstract class CheckedRecursiveAction extends RecursiveAction {
1691		protected abstract void realCompute() throws Throwable;
1692
1693	<	public final void compute() {
1693	>	@Override protected final void compute() {
1694		try {
1695		realCompute();
1696	<	} catch (Throwable t) {
1697	<	threadUnexpectedException(t);
1696	>	} catch (Throwable fail) {
1697	>	threadUnexpectedException(fail);
1698		}
1699		}
1700		}
#	Line 979 | Line 1705 | public class JSR166TestCase extends Test
1705		public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1706		protected abstract T realCompute() throws Throwable;
1707
1708	<	public final T compute() {
1708	>	@Override protected final T compute() {
1709		try {
1710		return realCompute();
1711	<	} catch (Throwable t) {
1712	<	threadUnexpectedException(t);
1711	>	} catch (Throwable fail) {
1712	>	threadUnexpectedException(fail);
1713		return null;
1714		}
1715		}
#	Line 998 | Line 1724 | public class JSR166TestCase extends Test
1724		}
1725
1726		/**
1727	<	* A CyclicBarrier that fails with AssertionFailedErrors instead
1728	<	* of throwing checked exceptions.
1727	>	* A CyclicBarrier that uses timed await and fails with
1728	>	* AssertionFailedErrors instead of throwing checked exceptions.
1729		*/
1730		public class CheckedBarrier extends CyclicBarrier {
1731		public CheckedBarrier(int parties) { super(parties); }
1732
1733		public int await() {
1734		try {
1735	<	return super.await();
1736	<	} catch (Exception e) {
1735	>	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1736	>	} catch (TimeoutException timedOut) {
1737	>	throw new AssertionFailedError("timed out");
1738	>	} catch (Exception fail) {
1739		AssertionFailedError afe =
1740	<	new AssertionFailedError("Unexpected exception: " + e);
1741	<	afe.initCause(e);
1740	>	new AssertionFailedError("Unexpected exception: " + fail);
1741	>	afe.initCause(fail);
1742		throw afe;
1743		}
1744		}
1745		}
1746
1747	<	public void checkEmpty(BlockingQueue q) {
1747	>	void checkEmpty(BlockingQueue q) {
1748		try {
1749		assertTrue(q.isEmpty());
1750		assertEquals(0, q.size());
#	Line 1038 | Line 1766 | public class JSR166TestCase extends Test
1766		q.remove();
1767		shouldThrow();
1768		} catch (NoSuchElementException success) {}
1769	<	} catch (InterruptedException ie) {
1770	<	threadUnexpectedException(ie);
1769	>	} catch (InterruptedException fail) { threadUnexpectedException(fail); }
1770	>	}
1771	>
1772	>	void assertSerialEquals(Object x, Object y) {
1773	>	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1774	>	}
1775	>
1776	>	void assertNotSerialEquals(Object x, Object y) {
1777	>	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1778	>	}
1779	>
1780	>	byte[] serialBytes(Object o) {
1781	>	try {
1782	>	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1783	>	ObjectOutputStream oos = new ObjectOutputStream(bos);
1784	>	oos.writeObject(o);
1785	>	oos.flush();
1786	>	oos.close();
1787	>	return bos.toByteArray();
1788	>	} catch (Throwable fail) {
1789	>	threadUnexpectedException(fail);
1790	>	return new byte[0];
1791	>	}
1792	>	}
1793	>
1794	>	@SuppressWarnings("unchecked")
1795	>	<T> T serialClone(T o) {
1796	>	try {
1797	>	ObjectInputStream ois = new ObjectInputStream
1798	>	(new ByteArrayInputStream(serialBytes(o)));
1799	>	T clone = (T) ois.readObject();
1800	>	assertSame(o.getClass(), clone.getClass());
1801	>	return clone;
1802	>	} catch (Throwable fail) {
1803	>	threadUnexpectedException(fail);
1804	>	return null;
1805	>	}
1806	>	}
1807	>
1808	>	public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1809	>	Runnable... throwingActions) {
1810	>	for (Runnable throwingAction : throwingActions) {
1811	>	boolean threw = false;
1812	>	try { throwingAction.run(); }
1813	>	catch (Throwable t) {
1814	>	threw = true;
1815	>	if (!expectedExceptionClass.isInstance(t)) {
1816	>	AssertionFailedError afe =
1817	>	new AssertionFailedError
1818	>	("Expected " + expectedExceptionClass.getName() +
1819	>	", got " + t.getClass().getName());
1820	>	afe.initCause(t);
1821	>	threadUnexpectedException(afe);
1822	>	}
1823	>	}
1824	>	if (!threw)
1825	>	shouldThrow(expectedExceptionClass.getName());
1826		}
1827		}
1828
1829	+	public void assertIteratorExhausted(Iterator<?> it) {
1830	+	try {
1831	+	it.next();
1832	+	shouldThrow();
1833	+	} catch (NoSuchElementException success) {}
1834	+	assertFalse(it.hasNext());
1835	+	}
1836		}

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