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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.86 by jsr166, Mon May 30 22:42:22 2011 UTC vs.
Revision 1.213 by jsr166, Fri Dec 9 06:58:57 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 (conformance testing mode)
12	>	* @build *
13	>	* @modules java.management
14	>	* @run junit/othervm/timeout=1000 JSR166TestCase
15	>	*/
16	>
17	>	/*
18	>	* @test
19	>	* @summary JSR-166 tck tests (whitebox tests allowed)
20	>	* @build *
21	>	* @modules java.base/java.util.concurrent:open
22	>	*          java.management
23	>	* @run junit/othervm/timeout=1000 -Djsr166.testImplementationDetails=true JSR166TestCase
24	>	* @run junit/othervm/timeout=1000 -Djsr166.testImplementationDetails=true -Djava.util.concurrent.ForkJoinPool.common.parallelism=0 JSR166TestCase
25	>	*/
26	>
27	>	import static java.util.concurrent.TimeUnit.MILLISECONDS;
28	>	import static java.util.concurrent.TimeUnit.MINUTES;
29	>	import static java.util.concurrent.TimeUnit.NANOSECONDS;
30	>
31		import java.io.ByteArrayInputStream;
32		import java.io.ByteArrayOutputStream;
33		import java.io.ObjectInputStream;
34		import java.io.ObjectOutputStream;
35	<	import java.util.Arrays;
36	<	import java.util.Date;
37	<	import java.util.NoSuchElementException;
38	<	import java.util.PropertyPermission;
39	<	import java.util.concurrent.*;
40	<	import java.util.concurrent.atomic.AtomicBoolean;
41	<	import java.util.concurrent.atomic.AtomicReference;
42	<	import static java.util.concurrent.TimeUnit.MILLISECONDS;
22	<	import static java.util.concurrent.TimeUnit.NANOSECONDS;
35	>	import java.lang.management.ManagementFactory;
36	>	import java.lang.management.ThreadInfo;
37	>	import java.lang.management.ThreadMXBean;
38	>	import java.lang.reflect.Constructor;
39	>	import java.lang.reflect.Method;
40	>	import java.lang.reflect.Modifier;
41	>	import java.nio.file.Files;
42	>	import java.nio.file.Paths;
43		import java.security.CodeSource;
44		import java.security.Permission;
45		import java.security.PermissionCollection;
#	Line 27 | Line 47 | import java.security.Permissions;
47		import java.security.Policy;
48		import java.security.ProtectionDomain;
49		import java.security.SecurityPermission;
50	+	import java.util.ArrayList;
51	+	import java.util.Arrays;
52	+	import java.util.Collection;
53	+	import java.util.Collections;
54	+	import java.util.Date;
55	+	import java.util.Enumeration;
56	+	import java.util.Iterator;
57	+	import java.util.List;
58	+	import java.util.NoSuchElementException;
59	+	import java.util.PropertyPermission;
60	+	import java.util.concurrent.BlockingQueue;
61	+	import java.util.concurrent.Callable;
62	+	import java.util.concurrent.CountDownLatch;
63	+	import java.util.concurrent.CyclicBarrier;
64	+	import java.util.concurrent.ExecutionException;
65	+	import java.util.concurrent.Executors;
66	+	import java.util.concurrent.ExecutorService;
67	+	import java.util.concurrent.ForkJoinPool;
68	+	import java.util.concurrent.Future;
69	+	import java.util.concurrent.RecursiveAction;
70	+	import java.util.concurrent.RecursiveTask;
71	+	import java.util.concurrent.RejectedExecutionHandler;
72	+	import java.util.concurrent.Semaphore;
73	+	import java.util.concurrent.SynchronousQueue;
74	+	import java.util.concurrent.ThreadFactory;
75	+	import java.util.concurrent.ThreadLocalRandom;
76	+	import java.util.concurrent.ThreadPoolExecutor;
77	+	import java.util.concurrent.TimeoutException;
78	+	import java.util.concurrent.atomic.AtomicBoolean;
79	+	import java.util.concurrent.atomic.AtomicReference;
80	+	import java.util.regex.Matcher;
81	+	import java.util.regex.Pattern;
82	+
83	+	import junit.framework.AssertionFailedError;
84	+	import junit.framework.Test;
85	+	import junit.framework.TestCase;
86	+	import junit.framework.TestResult;
87	+	import junit.framework.TestSuite;
88
89		/**
90		* Base class for JSR166 Junit TCK tests.  Defines some constants,
#	Line 38 | Line 96 | import java.security.SecurityPermission;
96		*
97		* <ol>
98		*
99	<	* <li> All assertions in code running in generated threads must use
99	>	* <li>All assertions in code running in generated threads must use
100		* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link
101		* #threadAssertEquals}, or {@link #threadAssertNull}, (not
102		* {@code fail}, {@code assertTrue}, etc.) It is OK (but not
103		* particularly recommended) for other code to use these forms too.
104		* Only the most typically used JUnit assertion methods are defined
105	<	* this way, but enough to live with.</li>
105	>	* this way, but enough to live with.
106		*
107	<	* <li> If you override {@link #setUp} or {@link #tearDown}, make sure
107	>	* <li>If you override {@link #setUp} or {@link #tearDown}, make sure
108		* to invoke {@code super.setUp} and {@code super.tearDown} within
109		* them. These methods are used to clear and check for thread
110	<	* assertion failures.</li>
110	>	* assertion failures.
111		*
112		* <li>All delays and timeouts must use one of the constants {@code
113		* SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS},
#	Line 60 | Line 118 | import java.security.SecurityPermission;
118		* is always discriminable as larger than SHORT and smaller than
119		* MEDIUM.  And so on. These constants are set to conservative values,
120		* but even so, if there is ever any doubt, they can all be increased
121	<	* in one spot to rerun tests on slower platforms.</li>
121	>	* in one spot to rerun tests on slower platforms.
122		*
123	<	* <li> All threads generated must be joined inside each test case
123	>	* <li>All threads generated must be joined inside each test case
124		* method (or {@code fail} to do so) before returning from the
125		* method. The {@code joinPool} method can be used to do this when
126	<	* using Executors.</li>
126	>	* using Executors.
127		*
128		* </ol>
129		*
130	<	* <p> <b>Other notes</b>
130	>	* <p><b>Other notes</b>
131		* <ul>
132		*
133	<	* <li> Usually, there is one testcase method per JSR166 method
133	>	* <li>Usually, there is one testcase method per JSR166 method
134		* covering "normal" operation, and then as many exception-testing
135		* methods as there are exceptions the method can throw. Sometimes
136		* there are multiple tests per JSR166 method when the different
137		* "normal" behaviors differ significantly. And sometimes testcases
138	<	* cover multiple methods when they cannot be tested in
81	<	* isolation.</li>
138	>	* cover multiple methods when they cannot be tested in isolation.
139		*
140	<	* <li> The documentation style for testcases is to provide as javadoc
140	>	* <li>The documentation style for testcases is to provide as javadoc
141		* a simple sentence or two describing the property that the testcase
142		* method purports to test. The javadocs do not say anything about how
143	<	* the property is tested. To find out, read the code.</li>
143	>	* the property is tested. To find out, read the code.
144		*
145	<	* <li> These tests are "conformance tests", and do not attempt to
145	>	* <li>These tests are "conformance tests", and do not attempt to
146		* test throughput, latency, scalability or other performance factors
147		* (see the separate "jtreg" tests for a set intended to check these
148		* for the most central aspects of functionality.) So, most tests use
149		* the smallest sensible numbers of threads, collection sizes, etc
150	<	* needed to check basic conformance.</li>
150	>	* needed to check basic conformance.
151		*
152		* <li>The test classes currently do not declare inclusion in
153		* any particular package to simplify things for people integrating
154	<	* them in TCK test suites.</li>
154	>	* them in TCK test suites.
155		*
156	<	* <li> As a convenience, the {@code main} of this class (JSR166TestCase)
157	<	* runs all JSR166 unit tests.</li>
156	>	* <li>As a convenience, the {@code main} of this class (JSR166TestCase)
157	>	* runs all JSR166 unit tests.
158		*
159		* </ul>
160		*/
#	Line 109 | Line 166 | public class JSR166TestCase extends Test
166		Boolean.getBoolean("jsr166.expensiveTests");
167
168		/**
169	+	* If true, also run tests that are not part of the official tck
170	+	* because they test unspecified implementation details.
171	+	*/
172	+	protected static final boolean testImplementationDetails =
173	+	Boolean.getBoolean("jsr166.testImplementationDetails");
174	+
175	+	/**
176		* If true, report on stdout all "slow" tests, that is, ones that
177		* take more than profileThreshold milliseconds to execute.
178		*/
#	Line 122 | Line 186 | public class JSR166TestCase extends Test
186		private static final long profileThreshold =
187		Long.getLong("jsr166.profileThreshold", 100);
188
189	+	/**
190	+	* The number of repetitions per test (for tickling rare bugs).
191	+	*/
192	+	private static final int runsPerTest =
193	+	Integer.getInteger("jsr166.runsPerTest", 1);
194	+
195	+	/**
196	+	* The number of repetitions of the test suite (for finding leaks?).
197	+	*/
198	+	private static final int suiteRuns =
199	+	Integer.getInteger("jsr166.suiteRuns", 1);
200	+
201	+	/**
202	+	* Returns the value of the system property, or NaN if not defined.
203	+	*/
204	+	private static float systemPropertyValue(String name) {
205	+	String floatString = System.getProperty(name);
206	+	if (floatString == null)
207	+	return Float.NaN;
208	+	try {
209	+	return Float.parseFloat(floatString);
210	+	} catch (NumberFormatException ex) {
211	+	throw new IllegalArgumentException(
212	+	String.format("Bad float value in system property %s=%s",
213	+	name, floatString));
214	+	}
215	+	}
216	+
217	+	/**
218	+	* The scaling factor to apply to standard delays used in tests.
219	+	* May be initialized from any of:
220	+	* - the "jsr166.delay.factor" system property
221	+	* - the "test.timeout.factor" system property (as used by jtreg)
222	+	*   See: http://openjdk.java.net/jtreg/tag-spec.html
223	+	* - hard-coded fuzz factor when using a known slowpoke VM
224	+	*/
225	+	private static final float delayFactor = delayFactor();
226	+
227	+	private static float delayFactor() {
228	+	float x;
229	+	if (!Float.isNaN(x = systemPropertyValue("jsr166.delay.factor")))
230	+	return x;
231	+	if (!Float.isNaN(x = systemPropertyValue("test.timeout.factor")))
232	+	return x;
233	+	String prop = System.getProperty("java.vm.version");
234	+	if (prop != null && prop.matches(".*debug.*"))
235	+	return 4.0f; // How much slower is fastdebug than product?!
236	+	return 1.0f;
237	+	}
238	+
239	+	public JSR166TestCase() { super(); }
240	+	public JSR166TestCase(String name) { super(name); }
241	+
242	+	/**
243	+	* A filter for tests to run, matching strings of the form
244	+	* methodName(className), e.g. "testInvokeAll5(ForkJoinPoolTest)"
245	+	* Usefully combined with jsr166.runsPerTest.
246	+	*/
247	+	private static final Pattern methodFilter = methodFilter();
248	+
249	+	private static Pattern methodFilter() {
250	+	String regex = System.getProperty("jsr166.methodFilter");
251	+	return (regex == null) ? null : Pattern.compile(regex);
252	+	}
253	+
254	+	// Instrumentation to debug very rare, but very annoying hung test runs.
255	+	static volatile TestCase currentTestCase;
256	+	// static volatile int currentRun = 0;
257	+	static {
258	+	Runnable checkForWedgedTest = new Runnable() { public void run() {
259	+	// Avoid spurious reports with enormous runsPerTest.
260	+	// A single test case run should never take more than 1 second.
261	+	// But let's cap it at the high end too ...
262	+	final int timeoutMinutes =
263	+	Math.min(15, Math.max(runsPerTest / 60, 1));
264	+	for (TestCase lastTestCase = currentTestCase;;) {
265	+	try { MINUTES.sleep(timeoutMinutes); }
266	+	catch (InterruptedException unexpected) { break; }
267	+	if (lastTestCase == currentTestCase) {
268	+	System.err.printf(
269	+	"Looks like we're stuck running test: %s%n",
270	+	lastTestCase);
271	+	//                     System.err.printf(
272	+	//                         "Looks like we're stuck running test: %s (%d/%d)%n",
273	+	//                         lastTestCase, currentRun, runsPerTest);
274	+	//                     System.err.println("availableProcessors=" +
275	+	//                         Runtime.getRuntime().availableProcessors());
276	+	//                     System.err.printf("cpu model = %s%n", cpuModel());
277	+	dumpTestThreads();
278	+	// one stack dump is probably enough; more would be spam
279	+	break;
280	+	}
281	+	lastTestCase = currentTestCase;
282	+	}}};
283	+	Thread thread = new Thread(checkForWedgedTest, "checkForWedgedTest");
284	+	thread.setDaemon(true);
285	+	thread.start();
286	+	}
287	+
288	+	//     public static String cpuModel() {
289	+	//         try {
290	+	//             Matcher matcher = Pattern.compile("model name\\s*: (.*)")
291	+	//                 .matcher(new String(
292	+	//                      Files.readAllBytes(Paths.get("/proc/cpuinfo")), "UTF-8"));
293	+	//             matcher.find();
294	+	//             return matcher.group(1);
295	+	//         } catch (Exception ex) { return null; }
296	+	//     }
297	+
298	+	public void runBare() throws Throwable {
299	+	currentTestCase = this;
300	+	if (methodFilter == null
301	+	|| methodFilter.matcher(toString()).find())
302	+	super.runBare();
303	+	}
304	+
305		protected void runTest() throws Throwable {
306	<	if (profileTests)
307	<	runTestProfiled();
308	<	else
309	<	super.runTest();
306	>	for (int i = 0; i < runsPerTest; i++) {
307	>	// currentRun = i;
308	>	if (profileTests)
309	>	runTestProfiled();
310	>	else
311	>	super.runTest();
312	>	}
313		}
314
315		protected void runTestProfiled() throws Throwable {
316	<	long t0 = System.nanoTime();
317	<	try {
316	>	for (int i = 0; i < 2; i++) {
317	>	long startTime = System.nanoTime();
318		super.runTest();
319	<	} finally {
320	<	long elapsedMillis =
321	<	(System.nanoTime() - t0) / (1000L * 1000L);
322	<	if (elapsedMillis >= profileThreshold)
319	>	long elapsedMillis = millisElapsedSince(startTime);
320	>	if (elapsedMillis < profileThreshold)
321	>	break;
322	>	// Never report first run of any test; treat it as a
323	>	// warmup run, notably to trigger all needed classloading,
324	>	if (i > 0)
325		System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
326		}
327		}
328
329		/**
330	<	* Runs all JSR166 unit tests using junit.textui.TestRunner
330	>	* Runs all JSR166 unit tests using junit.textui.TestRunner.
331		*/
332		public static void main(String[] args) {
333	+	main(suite(), args);
334	+	}
335	+
336	+	static class PithyResultPrinter extends junit.textui.ResultPrinter {
337	+	PithyResultPrinter(java.io.PrintStream writer) { super(writer); }
338	+	long runTime;
339	+	public void startTest(Test test) {}
340	+	protected void printHeader(long runTime) {
341	+	this.runTime = runTime; // defer printing for later
342	+	}
343	+	protected void printFooter(TestResult result) {
344	+	if (result.wasSuccessful()) {
345	+	getWriter().println("OK (" + result.runCount() + " tests)"
346	+	+ "  Time: " + elapsedTimeAsString(runTime));
347	+	} else {
348	+	getWriter().println("Time: " + elapsedTimeAsString(runTime));
349	+	super.printFooter(result);
350	+	}
351	+	}
352	+	}
353	+
354	+	/**
355	+	* Returns a TestRunner that doesn't bother with unnecessary
356	+	* fluff, like printing a "." for each test case.
357	+	*/
358	+	static junit.textui.TestRunner newPithyTestRunner() {
359	+	junit.textui.TestRunner runner = new junit.textui.TestRunner();
360	+	runner.setPrinter(new PithyResultPrinter(System.out));
361	+	return runner;
362	+	}
363	+
364	+	/**
365	+	* Runs all unit tests in the given test suite.
366	+	* Actual behavior influenced by jsr166.* system properties.
367	+	*/
368	+	static void main(Test suite, String[] args) {
369		if (useSecurityManager) {
370		System.err.println("Setting a permissive security manager");
371		Policy.setPolicy(permissivePolicy());
372		System.setSecurityManager(new SecurityManager());
373		}
374	<	int iters = (args.length == 0) ? 1 : Integer.parseInt(args[0]);
375	<
376	<	Test s = suite();
377	<	for (int i = 0; i < iters; ++i) {
157	<	junit.textui.TestRunner.run(s);
374	>	for (int i = 0; i < suiteRuns; i++) {
375	>	TestResult result = newPithyTestRunner().doRun(suite);
376	>	if (!result.wasSuccessful())
377	>	System.exit(1);
378		System.gc();
379		System.runFinalization();
380		}
161	–	System.exit(0);
381		}
382
383		public static TestSuite newTestSuite(Object... suiteOrClasses) {
#	Line 174 | Line 393 | public class JSR166TestCase extends Test
393		return suite;
394		}
395
396	+	public static void addNamedTestClasses(TestSuite suite,
397	+	String... testClassNames) {
398	+	for (String testClassName : testClassNames) {
399	+	try {
400	+	Class<?> testClass = Class.forName(testClassName);
401	+	Method m = testClass.getDeclaredMethod("suite",
402	+	new Class<?>[0]);
403	+	suite.addTest(newTestSuite((Test)m.invoke(null)));
404	+	} catch (Exception e) {
405	+	throw new Error("Missing test class", e);
406	+	}
407	+	}
408	+	}
409	+
410	+	public static final double JAVA_CLASS_VERSION;
411	+	public static final String JAVA_SPECIFICATION_VERSION;
412	+	static {
413	+	try {
414	+	JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
415	+	new java.security.PrivilegedAction<Double>() {
416	+	public Double run() {
417	+	return Double.valueOf(System.getProperty("java.class.version"));}});
418	+	JAVA_SPECIFICATION_VERSION = java.security.AccessController.doPrivileged(
419	+	new java.security.PrivilegedAction<String>() {
420	+	public String run() {
421	+	return System.getProperty("java.specification.version");}});
422	+	} catch (Throwable t) {
423	+	throw new Error(t);
424	+	}
425	+	}
426	+
427	+	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
428	+	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
429	+	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
430	+	public static boolean atLeastJava9() {
431	+	return JAVA_CLASS_VERSION >= 53.0
432	+	// As of 2015-09, java9 still uses 52.0 class file version
433	+	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?(9|[0-9][0-9])$");
434	+	}
435	+	public static boolean atLeastJava10() {
436	+	return JAVA_CLASS_VERSION >= 54.0
437	+	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?[0-9][0-9]$");
438	+	}
439	+
440		/**
441		* Collects all JSR166 unit tests as one suite.
442		*/
443		public static Test suite() {
444	<	return newTestSuite(
444	>	// Java7+ test classes
445	>	TestSuite suite = newTestSuite(
446		ForkJoinPoolTest.suite(),
447		ForkJoinTaskTest.suite(),
448		RecursiveActionTest.suite(),
#	Line 192 | Line 456 | public class JSR166TestCase extends Test
456		AbstractQueuedLongSynchronizerTest.suite(),
457		ArrayBlockingQueueTest.suite(),
458		ArrayDequeTest.suite(),
459	+	ArrayListTest.suite(),
460		AtomicBooleanTest.suite(),
461		AtomicIntegerArrayTest.suite(),
462		AtomicIntegerFieldUpdaterTest.suite(),
#	Line 214 | Line 479 | public class JSR166TestCase extends Test
479		CopyOnWriteArrayListTest.suite(),
480		CopyOnWriteArraySetTest.suite(),
481		CountDownLatchTest.suite(),
482	+	CountedCompleterTest.suite(),
483		CyclicBarrierTest.suite(),
484		DelayQueueTest.suite(),
485		EntryTest.suite(),
#	Line 242 | Line 508 | public class JSR166TestCase extends Test
508		TreeMapTest.suite(),
509		TreeSetTest.suite(),
510		TreeSubMapTest.suite(),
511	<	TreeSubSetTest.suite());
511	>	TreeSubSetTest.suite(),
512	>	VectorTest.suite());
513	>
514	>	// Java8+ test classes
515	>	if (atLeastJava8()) {
516	>	String[] java8TestClassNames = {
517	>	"ArrayDeque8Test",
518	>	"Atomic8Test",
519	>	"CompletableFutureTest",
520	>	"ConcurrentHashMap8Test",
521	>	"CountedCompleter8Test",
522	>	"DoubleAccumulatorTest",
523	>	"DoubleAdderTest",
524	>	"ForkJoinPool8Test",
525	>	"ForkJoinTask8Test",
526	>	"LongAccumulatorTest",
527	>	"LongAdderTest",
528	>	"SplittableRandomTest",
529	>	"StampedLockTest",
530	>	"SubmissionPublisherTest",
531	>	"ThreadLocalRandom8Test",
532	>	"TimeUnit8Test",
533	>	};
534	>	addNamedTestClasses(suite, java8TestClassNames);
535	>	}
536	>
537	>	// Java9+ test classes
538	>	if (atLeastJava9()) {
539	>	String[] java9TestClassNames = {
540	>	"AtomicBoolean9Test",
541	>	"AtomicInteger9Test",
542	>	"AtomicIntegerArray9Test",
543	>	"AtomicLong9Test",
544	>	"AtomicLongArray9Test",
545	>	"AtomicReference9Test",
546	>	"AtomicReferenceArray9Test",
547	>	"ExecutorCompletionService9Test",
548	>	};
549	>	addNamedTestClasses(suite, java9TestClassNames);
550	>	}
551	>
552	>	return suite;
553		}
554
555	+	/** Returns list of junit-style test method names in given class. */
556	+	public static ArrayList<String> testMethodNames(Class<?> testClass) {
557	+	Method[] methods = testClass.getDeclaredMethods();
558	+	ArrayList<String> names = new ArrayList<String>(methods.length);
559	+	for (Method method : methods) {
560	+	if (method.getName().startsWith("test")
561	+	&& Modifier.isPublic(method.getModifiers())
562	+	// method.getParameterCount() requires jdk8+
563	+	&& method.getParameterTypes().length == 0) {
564	+	names.add(method.getName());
565	+	}
566	+	}
567	+	return names;
568	+	}
569	+
570	+	/**
571	+	* Returns junit-style testSuite for the given test class, but
572	+	* parameterized by passing extra data to each test.
573	+	*/
574	+	public static <ExtraData> Test parameterizedTestSuite
575	+	(Class<? extends JSR166TestCase> testClass,
576	+	Class<ExtraData> dataClass,
577	+	ExtraData data) {
578	+	try {
579	+	TestSuite suite = new TestSuite();
580	+	Constructor c =
581	+	testClass.getDeclaredConstructor(dataClass, String.class);
582	+	for (String methodName : testMethodNames(testClass))
583	+	suite.addTest((Test) c.newInstance(data, methodName));
584	+	return suite;
585	+	} catch (Exception e) {
586	+	throw new Error(e);
587	+	}
588	+	}
589	+
590	+	/**
591	+	* Returns junit-style testSuite for the jdk8 extension of the
592	+	* given test class, but parameterized by passing extra data to
593	+	* each test.  Uses reflection to allow compilation in jdk7.
594	+	*/
595	+	public static <ExtraData> Test jdk8ParameterizedTestSuite
596	+	(Class<? extends JSR166TestCase> testClass,
597	+	Class<ExtraData> dataClass,
598	+	ExtraData data) {
599	+	if (atLeastJava8()) {
600	+	String name = testClass.getName();
601	+	String name8 = name.replaceAll("Test$", "8Test");
602	+	if (name.equals(name8)) throw new Error(name);
603	+	try {
604	+	return (Test)
605	+	Class.forName(name8)
606	+	.getMethod("testSuite", new Class[] { dataClass })
607	+	.invoke(null, data);
608	+	} catch (Exception e) {
609	+	throw new Error(e);
610	+	}
611	+	} else {
612	+	return new TestSuite();
613	+	}
614	+	}
615	+
616	+	// Delays for timing-dependent tests, in milliseconds.
617
618		public static long SHORT_DELAY_MS;
619		public static long SMALL_DELAY_MS;
620		public static long MEDIUM_DELAY_MS;
621		public static long LONG_DELAY_MS;
622
254	–
623		/**
624	<	* Returns the shortest timed delay. This could
625	<	* be reimplemented to use for example a Property.
624	>	* Returns the shortest timed delay. This can be scaled up for
625	>	* slow machines using the jsr166.delay.factor system property,
626	>	* or via jtreg's -timeoutFactor: flag.
627	>	* http://openjdk.java.net/jtreg/command-help.html
628		*/
629		protected long getShortDelay() {
630	<	return 50;
630	>	return (long) (50 * delayFactor);
631		}
632
633		/**
#	Line 279 | Line 649 | public class JSR166TestCase extends Test
649		}
650
651		/**
652	<	* Returns a new Date instance representing a time delayMillis
653	<	* milliseconds in the future.
652	>	* Returns a new Date instance representing a time at least
653	>	* delayMillis milliseconds in the future.
654		*/
655		Date delayedDate(long delayMillis) {
656	<	return new Date(System.currentTimeMillis() + delayMillis);
656	>	// Add 1 because currentTimeMillis is known to round into the past.
657	>	return new Date(System.currentTimeMillis() + delayMillis + 1);
658		}
659
660		/**
#	Line 299 | Line 670 | public class JSR166TestCase extends Test
670		* the same test have no effect.
671		*/
672		public void threadRecordFailure(Throwable t) {
673	+	System.err.println(t);
674	+	dumpTestThreads();
675		threadFailure.compareAndSet(null, t);
676		}
677
#	Line 306 | Line 679 | public class JSR166TestCase extends Test
679		setDelays();
680		}
681
682	+	void tearDownFail(String format, Object... args) {
683	+	String msg = toString() + ": " + String.format(format, args);
684	+	System.err.println(msg);
685	+	dumpTestThreads();
686	+	throw new AssertionFailedError(msg);
687	+	}
688	+
689		/**
690		* Extra checks that get done for all test cases.
691		*
#	Line 333 | Line 713 | public class JSR166TestCase extends Test
713		}
714
715		if (Thread.interrupted())
716	<	throw new AssertionFailedError("interrupt status set in main thread");
716	>	tearDownFail("interrupt status set in main thread");
717	>
718	>	checkForkJoinPoolThreadLeaks();
719	>	}
720	>
721	>	/**
722	>	* Finds missing PoolCleaners
723	>	*/
724	>	void checkForkJoinPoolThreadLeaks() throws InterruptedException {
725	>	Thread[] survivors = new Thread[7];
726	>	int count = Thread.enumerate(survivors);
727	>	for (int i = 0; i < count; i++) {
728	>	Thread thread = survivors[i];
729	>	String name = thread.getName();
730	>	if (name.startsWith("ForkJoinPool-")) {
731	>	// give thread some time to terminate
732	>	thread.join(LONG_DELAY_MS);
733	>	if (thread.isAlive())
734	>	tearDownFail("Found leaked ForkJoinPool thread thread=%s",
735	>	thread);
736	>	}
737	>	}
738	>
739	>	if (!ForkJoinPool.commonPool()
740	>	.awaitQuiescence(LONG_DELAY_MS, MILLISECONDS))
741	>	tearDownFail("ForkJoin common pool thread stuck");
742		}
743
744		/**
#	Line 346 | Line 751 | public class JSR166TestCase extends Test
751		fail(reason);
752		} catch (AssertionFailedError t) {
753		threadRecordFailure(t);
754	<	fail(reason);
754	>	throw t;
755		}
756		}
757
#	Line 414 | Line 819 | public class JSR166TestCase extends Test
819		public void threadAssertEquals(Object x, Object y) {
820		try {
821		assertEquals(x, y);
822	<	} catch (AssertionFailedError t) {
823	<	threadRecordFailure(t);
824	<	throw t;
825	<	} catch (Throwable t) {
826	<	threadUnexpectedException(t);
822	>	} catch (AssertionFailedError fail) {
823	>	threadRecordFailure(fail);
824	>	throw fail;
825	>	} catch (Throwable fail) {
826	>	threadUnexpectedException(fail);
827		}
828		}
829
#	Line 430 | Line 835 | public class JSR166TestCase extends Test
835		public void threadAssertSame(Object x, Object y) {
836		try {
837		assertSame(x, y);
838	<	} catch (AssertionFailedError t) {
839	<	threadRecordFailure(t);
840	<	throw t;
838	>	} catch (AssertionFailedError fail) {
839	>	threadRecordFailure(fail);
840	>	throw fail;
841		}
842		}
843
#	Line 473 | Line 878 | public class JSR166TestCase extends Test
878		/**
879		* Delays, via Thread.sleep, for the given millisecond delay, but
880		* if the sleep is shorter than specified, may re-sleep or yield
881	<	* until time elapses.
881	>	* until time elapses.  Ensures that the given time, as measured
882	>	* by System.nanoTime(), has elapsed.
883		*/
884		static void delay(long millis) throws InterruptedException {
885	<	long startTime = System.nanoTime();
886	<	long ns = millis * 1000 * 1000;
887	<	for (;;) {
885	>	long nanos = millis * (1000 * 1000);
886	>	final long wakeupTime = System.nanoTime() + nanos;
887	>	do {
888		if (millis > 0L)
889		Thread.sleep(millis);
890		else // too short to sleep
891		Thread.yield();
892	<	long d = ns - (System.nanoTime() - startTime);
893	<	if (d > 0L)
894	<	millis = d / (1000 * 1000);
895	<	else
896	<	break;
892	>	nanos = wakeupTime - System.nanoTime();
893	>	millis = nanos / (1000 * 1000);
894	>	} while (nanos >= 0L);
895	>	}
896	>
897	>	/**
898	>	* Allows use of try-with-resources with per-test thread pools.
899	>	*/
900	>	class PoolCleaner implements AutoCloseable {
901	>	private final ExecutorService pool;
902	>	public PoolCleaner(ExecutorService pool) { this.pool = pool; }
903	>	public void close() { joinPool(pool); }
904	>	}
905	>
906	>	/**
907	>	* An extension of PoolCleaner that has an action to release the pool.
908	>	*/
909	>	class PoolCleanerWithReleaser extends PoolCleaner {
910	>	private final Runnable releaser;
911	>	public PoolCleanerWithReleaser(ExecutorService pool, Runnable releaser) {
912	>	super(pool);
913	>	this.releaser = releaser;
914	>	}
915	>	public void close() {
916	>	try {
917	>	releaser.run();
918	>	} finally {
919	>	super.close();
920	>	}
921		}
922		}
923
924	+	PoolCleaner cleaner(ExecutorService pool) {
925	+	return new PoolCleaner(pool);
926	+	}
927	+
928	+	PoolCleaner cleaner(ExecutorService pool, Runnable releaser) {
929	+	return new PoolCleanerWithReleaser(pool, releaser);
930	+	}
931	+
932	+	PoolCleaner cleaner(ExecutorService pool, CountDownLatch latch) {
933	+	return new PoolCleanerWithReleaser(pool, releaser(latch));
934	+	}
935	+
936	+	Runnable releaser(final CountDownLatch latch) {
937	+	return new Runnable() { public void run() {
938	+	do { latch.countDown(); }
939	+	while (latch.getCount() > 0);
940	+	}};
941	+	}
942	+
943	+	PoolCleaner cleaner(ExecutorService pool, AtomicBoolean flag) {
944	+	return new PoolCleanerWithReleaser(pool, releaser(flag));
945	+	}
946	+
947	+	Runnable releaser(final AtomicBoolean flag) {
948	+	return new Runnable() { public void run() { flag.set(true); }};
949	+	}
950	+
951		/**
952		* Waits out termination of a thread pool or fails doing so.
953		*/
954	<	void joinPool(ExecutorService exec) {
954	>	void joinPool(ExecutorService pool) {
955		try {
956	<	exec.shutdown();
957	<	assertTrue("ExecutorService did not terminate in a timely manner",
958	<	exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS));
956	>	pool.shutdown();
957	>	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)) {
958	>	try {
959	>	threadFail("ExecutorService " + pool +
960	>	" did not terminate in a timely manner");
961	>	} finally {
962	>	// last resort, for the benefit of subsequent tests
963	>	pool.shutdownNow();
964	>	pool.awaitTermination(MEDIUM_DELAY_MS, MILLISECONDS);
965	>	}
966	>	}
967		} catch (SecurityException ok) {
968		// Allowed in case test doesn't have privs
969	<	} catch (InterruptedException ie) {
970	<	fail("Unexpected InterruptedException");
969	>	} catch (InterruptedException fail) {
970	>	threadFail("Unexpected InterruptedException");
971		}
972		}
973
974		/**
975	+	* Like Runnable, but with the freedom to throw anything.
976	+	* junit folks had the same idea:
977	+	* http://junit.org/junit5/docs/snapshot/api/org/junit/gen5/api/Executable.html
978	+	*/
979	+	interface Action { public void run() throws Throwable; }
980	+
981	+	/**
982	+	* Runs all the given actions in parallel, failing if any fail.
983	+	* Useful for running multiple variants of tests that are
984	+	* necessarily individually slow because they must block.
985	+	*/
986	+	void testInParallel(Action ... actions) {
987	+	ExecutorService pool = Executors.newCachedThreadPool();
988	+	try (PoolCleaner cleaner = cleaner(pool)) {
989	+	ArrayList<Future<?>> futures = new ArrayList<>(actions.length);
990	+	for (final Action action : actions)
991	+	futures.add(pool.submit(new CheckedRunnable() {
992	+	public void realRun() throws Throwable { action.run();}}));
993	+	for (Future<?> future : futures)
994	+	try {
995	+	assertNull(future.get(LONG_DELAY_MS, MILLISECONDS));
996	+	} catch (ExecutionException ex) {
997	+	threadUnexpectedException(ex.getCause());
998	+	} catch (Exception ex) {
999	+	threadUnexpectedException(ex);
1000	+	}
1001	+	}
1002	+	}
1003	+
1004	+	/**
1005	+	* A debugging tool to print stack traces of most threads, as jstack does.
1006	+	* Uninteresting threads are filtered out.
1007	+	*/
1008	+	static void dumpTestThreads() {
1009	+	SecurityManager sm = System.getSecurityManager();
1010	+	if (sm != null) {
1011	+	try {
1012	+	System.setSecurityManager(null);
1013	+	} catch (SecurityException giveUp) {
1014	+	return;
1015	+	}
1016	+	}
1017	+
1018	+	ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
1019	+	System.err.println("------ stacktrace dump start ------");
1020	+	for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) {
1021	+	final String name = info.getThreadName();
1022	+	String lockName;
1023	+	if ("Signal Dispatcher".equals(name))
1024	+	continue;
1025	+	if ("Reference Handler".equals(name)
1026	+	&& (lockName = info.getLockName()) != null
1027	+	&& lockName.startsWith("java.lang.ref.Reference$Lock"))
1028	+	continue;
1029	+	if ("Finalizer".equals(name)
1030	+	&& (lockName = info.getLockName()) != null
1031	+	&& lockName.startsWith("java.lang.ref.ReferenceQueue$Lock"))
1032	+	continue;
1033	+	if ("checkForWedgedTest".equals(name))
1034	+	continue;
1035	+	System.err.print(info);
1036	+	}
1037	+	System.err.println("------ stacktrace dump end ------");
1038	+
1039	+	if (sm != null) System.setSecurityManager(sm);
1040	+	}
1041	+
1042	+	/**
1043		* Checks that thread does not terminate within the default
1044		* millisecond delay of {@code timeoutMillis()}.
1045		*/
#	Line 522 | Line 1055 | public class JSR166TestCase extends Test
1055		// No need to optimize the failing case via Thread.join.
1056		delay(millis);
1057		assertTrue(thread.isAlive());
1058	<	} catch (InterruptedException ie) {
1059	<	fail("Unexpected InterruptedException");
1058	>	} catch (InterruptedException fail) {
1059	>	threadFail("Unexpected InterruptedException");
1060	>	}
1061	>	}
1062	>
1063	>	/**
1064	>	* Checks that the threads do not terminate within the default
1065	>	* millisecond delay of {@code timeoutMillis()}.
1066	>	*/
1067	>	void assertThreadsStayAlive(Thread... threads) {
1068	>	assertThreadsStayAlive(timeoutMillis(), threads);
1069	>	}
1070	>
1071	>	/**
1072	>	* Checks that the threads do not terminate within the given millisecond delay.
1073	>	*/
1074	>	void assertThreadsStayAlive(long millis, Thread... threads) {
1075	>	try {
1076	>	// No need to optimize the failing case via Thread.join.
1077	>	delay(millis);
1078	>	for (Thread thread : threads)
1079	>	assertTrue(thread.isAlive());
1080	>	} catch (InterruptedException fail) {
1081	>	threadFail("Unexpected InterruptedException");
1082		}
1083		}
1084
#	Line 544 | Line 1099 | public class JSR166TestCase extends Test
1099		future.get(timeoutMillis, MILLISECONDS);
1100		shouldThrow();
1101		} catch (TimeoutException success) {
1102	<	} catch (Exception e) {
1103	<	threadUnexpectedException(e);
1102	>	} catch (Exception fail) {
1103	>	threadUnexpectedException(fail);
1104		} finally { future.cancel(true); }
1105		assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
1106		}
#	Line 589 | Line 1144 | public class JSR166TestCase extends Test
1144		public static final Integer m6  = new Integer(-6);
1145		public static final Integer m10 = new Integer(-10);
1146
592	–
1147		/**
1148		* Runs Runnable r with a security policy that permits precisely
1149		* the specified permissions.  If there is no current security
#	Line 601 | Line 1155 | public class JSR166TestCase extends Test
1155		SecurityManager sm = System.getSecurityManager();
1156		if (sm == null) {
1157		r.run();
1158	+	}
1159	+	runWithSecurityManagerWithPermissions(r, permissions);
1160	+	}
1161	+
1162	+	/**
1163	+	* Runs Runnable r with a security policy that permits precisely
1164	+	* the specified permissions.  If there is no current security
1165	+	* manager, a temporary one is set for the duration of the
1166	+	* Runnable.  We require that any security manager permit
1167	+	* getPolicy/setPolicy.
1168	+	*/
1169	+	public void runWithSecurityManagerWithPermissions(Runnable r,
1170	+	Permission... permissions) {
1171	+	SecurityManager sm = System.getSecurityManager();
1172	+	if (sm == null) {
1173		Policy savedPolicy = Policy.getPolicy();
1174		try {
1175		Policy.setPolicy(permissivePolicy());
1176		System.setSecurityManager(new SecurityManager());
1177	<	runWithPermissions(r, permissions);
1177	>	runWithSecurityManagerWithPermissions(r, permissions);
1178		} finally {
1179		System.setSecurityManager(null);
1180		Policy.setPolicy(savedPolicy);
#	Line 653 | Line 1222 | public class JSR166TestCase extends Test
1222		return perms.implies(p);
1223		}
1224		public void refresh() {}
1225	+	public String toString() {
1226	+	List<Permission> ps = new ArrayList<Permission>();
1227	+	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
1228	+	ps.add(e.nextElement());
1229	+	return "AdjustablePolicy with permissions " + ps;
1230	+	}
1231		}
1232
1233		/**
#	Line 678 | Line 1253 | public class JSR166TestCase extends Test
1253		* Sleeps until the given time has elapsed.
1254		* Throws AssertionFailedError if interrupted.
1255		*/
1256	<	void sleep(long millis) {
1256	>	static void sleep(long millis) {
1257		try {
1258		delay(millis);
1259	<	} catch (InterruptedException ie) {
1259	>	} catch (InterruptedException fail) {
1260		AssertionFailedError afe =
1261		new AssertionFailedError("Unexpected InterruptedException");
1262	<	afe.initCause(ie);
1262	>	afe.initCause(fail);
1263		throw afe;
1264		}
1265		}
1266
1267		/**
1268	<	* Waits up to the specified number of milliseconds for the given
1268	>	* Spin-waits up to the specified number of milliseconds for the given
1269		* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1270		*/
1271		void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1272	<	long timeoutNanos = timeoutMillis * 1000L * 1000L;
698	<	long t0 = System.nanoTime();
1272	>	long startTime = 0L;
1273		for (;;) {
1274		Thread.State s = thread.getState();
1275		if (s == Thread.State.BLOCKED ||
#	Line 704 | Line 1278 | public class JSR166TestCase extends Test
1278		return;
1279		else if (s == Thread.State.TERMINATED)
1280		fail("Unexpected thread termination");
1281	<	else if (System.nanoTime() - t0 > timeoutNanos) {
1281	>	else if (startTime == 0L)
1282	>	startTime = System.nanoTime();
1283	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
1284		threadAssertTrue(thread.isAlive());
1285		return;
1286		}
#	Line 723 | Line 1299 | public class JSR166TestCase extends Test
1299		/**
1300		* Returns the number of milliseconds since time given by
1301		* startNanoTime, which must have been previously returned from a
1302	<	* call to {@link System.nanoTime()}.
1302	>	* call to {@link System#nanoTime()}.
1303		*/
1304	<	long millisElapsedSince(long startNanoTime) {
1304	>	static long millisElapsedSince(long startNanoTime) {
1305		return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
1306		}
1307
1308	+	//     void assertTerminatesPromptly(long timeoutMillis, Runnable r) {
1309	+	//         long startTime = System.nanoTime();
1310	+	//         try {
1311	+	//             r.run();
1312	+	//         } catch (Throwable fail) { threadUnexpectedException(fail); }
1313	+	//         if (millisElapsedSince(startTime) > timeoutMillis/2)
1314	+	//             throw new AssertionFailedError("did not return promptly");
1315	+	//     }
1316	+
1317	+	//     void assertTerminatesPromptly(Runnable r) {
1318	+	//         assertTerminatesPromptly(LONG_DELAY_MS/2, r);
1319	+	//     }
1320	+
1321	+	/**
1322	+	* Checks that timed f.get() returns the expected value, and does not
1323	+	* wait for the timeout to elapse before returning.
1324	+	*/
1325	+	<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
1326	+	long startTime = System.nanoTime();
1327	+	try {
1328	+	assertEquals(expectedValue, f.get(timeoutMillis, MILLISECONDS));
1329	+	} catch (Throwable fail) { threadUnexpectedException(fail); }
1330	+	if (millisElapsedSince(startTime) > timeoutMillis/2)
1331	+	throw new AssertionFailedError("timed get did not return promptly");
1332	+	}
1333	+
1334	+	<T> void checkTimedGet(Future<T> f, T expectedValue) {
1335	+	checkTimedGet(f, expectedValue, LONG_DELAY_MS);
1336	+	}
1337	+
1338		/**
1339		* Returns a new started daemon Thread running the given runnable.
1340		*/
#	Line 747 | Line 1353 | public class JSR166TestCase extends Test
1353		void awaitTermination(Thread t, long timeoutMillis) {
1354		try {
1355		t.join(timeoutMillis);
1356	<	} catch (InterruptedException ie) {
1357	<	threadUnexpectedException(ie);
1356	>	} catch (InterruptedException fail) {
1357	>	threadUnexpectedException(fail);
1358		} finally {
1359		if (t.getState() != Thread.State.TERMINATED) {
1360		t.interrupt();
1361	<	fail("Test timed out");
1361	>	threadFail("timed out waiting for thread to terminate");
1362		}
1363		}
1364		}
#	Line 774 | Line 1380 | public class JSR166TestCase extends Test
1380		public final void run() {
1381		try {
1382		realRun();
1383	<	} catch (Throwable t) {
1384	<	threadUnexpectedException(t);
1383	>	} catch (Throwable fail) {
1384	>	threadUnexpectedException(fail);
1385		}
1386		}
1387		}
#	Line 829 | Line 1435 | public class JSR166TestCase extends Test
1435		threadShouldThrow("InterruptedException");
1436		} catch (InterruptedException success) {
1437		threadAssertFalse(Thread.interrupted());
1438	<	} catch (Throwable t) {
1439	<	threadUnexpectedException(t);
1438	>	} catch (Throwable fail) {
1439	>	threadUnexpectedException(fail);
1440		}
1441		}
1442		}
#	Line 841 | Line 1447 | public class JSR166TestCase extends Test
1447		public final T call() {
1448		try {
1449		return realCall();
1450	<	} catch (Throwable t) {
1451	<	threadUnexpectedException(t);
1450	>	} catch (Throwable fail) {
1451	>	threadUnexpectedException(fail);
1452		return null;
1453		}
1454		}
#	Line 859 | Line 1465 | public class JSR166TestCase extends Test
1465		return result;
1466		} catch (InterruptedException success) {
1467		threadAssertFalse(Thread.interrupted());
1468	<	} catch (Throwable t) {
1469	<	threadUnexpectedException(t);
1468	>	} catch (Throwable fail) {
1469	>	threadUnexpectedException(fail);
1470		}
1471		return null;
1472		}
#	Line 877 | Line 1483 | public class JSR166TestCase extends Test
1483		public static final String TEST_STRING = "a test string";
1484
1485		public static class StringTask implements Callable<String> {
1486	<	public String call() { return TEST_STRING; }
1486	>	final String value;
1487	>	public StringTask() { this(TEST_STRING); }
1488	>	public StringTask(String value) { this.value = value; }
1489	>	public String call() { return value; }
1490		}
1491
1492		public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
#	Line 890 | Line 1499 | public class JSR166TestCase extends Test
1499		}};
1500		}
1501
1502	<	public Runnable awaiter(final CountDownLatch latch) {
1502	>	public Runnable countDowner(final CountDownLatch latch) {
1503		return new CheckedRunnable() {
1504		public void realRun() throws InterruptedException {
1505	<	await(latch);
1505	>	latch.countDown();
1506		}};
1507		}
1508
1509	+	class LatchAwaiter extends CheckedRunnable {
1510	+	static final int NEW = 0;
1511	+	static final int RUNNING = 1;
1512	+	static final int DONE = 2;
1513	+	final CountDownLatch latch;
1514	+	int state = NEW;
1515	+	LatchAwaiter(CountDownLatch latch) { this.latch = latch; }
1516	+	public void realRun() throws InterruptedException {
1517	+	state = 1;
1518	+	await(latch);
1519	+	state = 2;
1520	+	}
1521	+	}
1522	+
1523	+	public LatchAwaiter awaiter(CountDownLatch latch) {
1524	+	return new LatchAwaiter(latch);
1525	+	}
1526	+
1527	+	public void await(CountDownLatch latch, long timeoutMillis) {
1528	+	try {
1529	+	if (!latch.await(timeoutMillis, MILLISECONDS))
1530	+	fail("timed out waiting for CountDownLatch for "
1531	+	+ (timeoutMillis/1000) + " sec");
1532	+	} catch (Throwable fail) {
1533	+	threadUnexpectedException(fail);
1534	+	}
1535	+	}
1536	+
1537		public void await(CountDownLatch latch) {
1538	+	await(latch, LONG_DELAY_MS);
1539	+	}
1540	+
1541	+	public void await(Semaphore semaphore) {
1542		try {
1543	<	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1544	<	} catch (Throwable t) {
1545	<	threadUnexpectedException(t);
1543	>	if (!semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS))
1544	>	fail("timed out waiting for Semaphore for "
1545	>	+ (LONG_DELAY_MS/1000) + " sec");
1546	>	} catch (Throwable fail) {
1547	>	threadUnexpectedException(fail);
1548		}
1549		}
1550
#	Line 1092 | Line 1735 | public class JSR166TestCase extends Test
1735		public abstract class CheckedRecursiveAction extends RecursiveAction {
1736		protected abstract void realCompute() throws Throwable;
1737
1738	<	public final void compute() {
1738	>	@Override protected final void compute() {
1739		try {
1740		realCompute();
1741	<	} catch (Throwable t) {
1742	<	threadUnexpectedException(t);
1741	>	} catch (Throwable fail) {
1742	>	threadUnexpectedException(fail);
1743		}
1744		}
1745		}
#	Line 1107 | Line 1750 | public class JSR166TestCase extends Test
1750		public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1751		protected abstract T realCompute() throws Throwable;
1752
1753	<	public final T compute() {
1753	>	@Override protected final T compute() {
1754		try {
1755		return realCompute();
1756	<	} catch (Throwable t) {
1757	<	threadUnexpectedException(t);
1756	>	} catch (Throwable fail) {
1757	>	threadUnexpectedException(fail);
1758		return null;
1759		}
1760		}
#	Line 1129 | Line 1772 | public class JSR166TestCase extends Test
1772		* A CyclicBarrier that uses timed await and fails with
1773		* AssertionFailedErrors instead of throwing checked exceptions.
1774		*/
1775	<	public class CheckedBarrier extends CyclicBarrier {
1775	>	public static class CheckedBarrier extends CyclicBarrier {
1776		public CheckedBarrier(int parties) { super(parties); }
1777
1778		public int await() {
1779		try {
1780		return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1781	<	} catch (TimeoutException e) {
1781	>	} catch (TimeoutException timedOut) {
1782		throw new AssertionFailedError("timed out");
1783	<	} catch (Exception e) {
1783	>	} catch (Exception fail) {
1784		AssertionFailedError afe =
1785	<	new AssertionFailedError("Unexpected exception: " + e);
1786	<	afe.initCause(e);
1785	>	new AssertionFailedError("Unexpected exception: " + fail);
1786	>	afe.initCause(fail);
1787		throw afe;
1788		}
1789		}
#	Line 1168 | Line 1811 | public class JSR166TestCase extends Test
1811		q.remove();
1812		shouldThrow();
1813		} catch (NoSuchElementException success) {}
1814	<	} catch (InterruptedException ie) {
1172	<	threadUnexpectedException(ie);
1173	<	}
1814	>	} catch (InterruptedException fail) { threadUnexpectedException(fail); }
1815		}
1816
1817	<	@SuppressWarnings("unchecked")
1818	<	<T> T serialClone(T o) {
1817	>	void assertSerialEquals(Object x, Object y) {
1818	>	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1819	>	}
1820	>
1821	>	void assertNotSerialEquals(Object x, Object y) {
1822	>	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1823	>	}
1824	>
1825	>	byte[] serialBytes(Object o) {
1826		try {
1827		ByteArrayOutputStream bos = new ByteArrayOutputStream();
1828		ObjectOutputStream oos = new ObjectOutputStream(bos);
1829		oos.writeObject(o);
1830		oos.flush();
1831		oos.close();
1832	<	ByteArrayInputStream bin =
1833	<	new ByteArrayInputStream(bos.toByteArray());
1834	<	ObjectInputStream ois = new ObjectInputStream(bin);
1835	<	return (T) ois.readObject();
1836	<	} catch (Throwable t) {
1837	<	threadUnexpectedException(t);
1832	>	return bos.toByteArray();
1833	>	} catch (Throwable fail) {
1834	>	threadUnexpectedException(fail);
1835	>	return new byte[0];
1836	>	}
1837	>	}
1838	>
1839	>	void assertImmutable(final Object o) {
1840	>	if (o instanceof Collection) {
1841	>	assertThrows(
1842	>	UnsupportedOperationException.class,
1843	>	new Runnable() { public void run() {
1844	>	((Collection) o).add(null);}});
1845	>	}
1846	>	}
1847	>
1848	>	@SuppressWarnings("unchecked")
1849	>	<T> T serialClone(T o) {
1850	>	try {
1851	>	ObjectInputStream ois = new ObjectInputStream
1852	>	(new ByteArrayInputStream(serialBytes(o)));
1853	>	T clone = (T) ois.readObject();
1854	>	if (o == clone) assertImmutable(o);
1855	>	assertSame(o.getClass(), clone.getClass());
1856	>	return clone;
1857	>	} catch (Throwable fail) {
1858	>	threadUnexpectedException(fail);
1859	>	return null;
1860	>	}
1861	>	}
1862	>
1863	>	/**
1864	>	* A version of serialClone that leaves error handling (for
1865	>	* e.g. NotSerializableException) up to the caller.
1866	>	*/
1867	>	@SuppressWarnings("unchecked")
1868	>	<T> T serialClonePossiblyFailing(T o)
1869	>	throws ReflectiveOperationException, java.io.IOException {
1870	>	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1871	>	ObjectOutputStream oos = new ObjectOutputStream(bos);
1872	>	oos.writeObject(o);
1873	>	oos.flush();
1874	>	oos.close();
1875	>	ObjectInputStream ois = new ObjectInputStream
1876	>	(new ByteArrayInputStream(bos.toByteArray()));
1877	>	T clone = (T) ois.readObject();
1878	>	if (o == clone) assertImmutable(o);
1879	>	assertSame(o.getClass(), clone.getClass());
1880	>	return clone;
1881	>	}
1882	>
1883	>	/**
1884	>	* If o implements Cloneable and has a public clone method,
1885	>	* returns a clone of o, else null.
1886	>	*/
1887	>	@SuppressWarnings("unchecked")
1888	>	<T> T cloneableClone(T o) {
1889	>	if (!(o instanceof Cloneable)) return null;
1890	>	final T clone;
1891	>	try {
1892	>	clone = (T) o.getClass().getMethod("clone").invoke(o);
1893	>	} catch (NoSuchMethodException ok) {
1894		return null;
1895	+	} catch (ReflectiveOperationException unexpected) {
1896	+	throw new Error(unexpected);
1897		}
1898	+	assertNotSame(o, clone); // not 100% guaranteed by spec
1899	+	assertSame(o.getClass(), clone.getClass());
1900	+	return clone;
1901	+	}
1902	+
1903	+	public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1904	+	Runnable... throwingActions) {
1905	+	for (Runnable throwingAction : throwingActions) {
1906	+	boolean threw = false;
1907	+	try { throwingAction.run(); }
1908	+	catch (Throwable t) {
1909	+	threw = true;
1910	+	if (!expectedExceptionClass.isInstance(t)) {
1911	+	AssertionFailedError afe =
1912	+	new AssertionFailedError
1913	+	("Expected " + expectedExceptionClass.getName() +
1914	+	", got " + t.getClass().getName());
1915	+	afe.initCause(t);
1916	+	threadUnexpectedException(afe);
1917	+	}
1918	+	}
1919	+	if (!threw)
1920	+	shouldThrow(expectedExceptionClass.getName());
1921	+	}
1922	+	}
1923	+
1924	+	public void assertIteratorExhausted(Iterator<?> it) {
1925	+	try {
1926	+	it.next();
1927	+	shouldThrow();
1928	+	} catch (NoSuchElementException success) {}
1929	+	assertFalse(it.hasNext());
1930	+	}
1931	+
1932	+	public <T> Callable<T> callableThrowing(final Exception ex) {
1933	+	return new Callable<T>() { public T call() throws Exception { throw ex; }};
1934	+	}
1935	+
1936	+	public Runnable runnableThrowing(final RuntimeException ex) {
1937	+	return new Runnable() { public void run() { throw ex; }};
1938	+	}
1939	+
1940	+	/** A reusable thread pool to be shared by tests. */
1941	+	static final ExecutorService cachedThreadPool =
1942	+	new ThreadPoolExecutor(0, Integer.MAX_VALUE,
1943	+	1000L, MILLISECONDS,
1944	+	new SynchronousQueue<Runnable>());
1945	+
1946	+	static <T> void shuffle(T[] array) {
1947	+	Collections.shuffle(Arrays.asList(array), ThreadLocalRandom.current());
1948		}
1949		}

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