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Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.53 by jsr166, Thu Sep 16 00:52:49 2010 UTC vs.
Revision 1.199 by jsr166, Sat Aug 6 16:24:05 2016 UTC

#	Line 1 | Line 1
1		/*
2		* Written by Doug Lea with assistance from members of JCP JSR-166
3		* Expert Group and released to the public domain, as explained at
4	<	* http://creativecommons.org/licenses/publicdomain
4	>	* http://creativecommons.org/publicdomain/zero/1.0/
5		* Other contributors include Andrew Wright, Jeffrey Hayes,
6		* Pat Fisher, Mike Judd.
7		*/
8
9	<	import junit.framework.*;
10	<	import java.util.PropertyPermission;
11	<	import java.util.concurrent.*;
12	<	import java.util.concurrent.atomic.AtomicReference;
9	>	/*
10	>	* @test
11	>	* @summary JSR-166 tck tests
12	>	* @modules java.management
13	>	* @build *
14	>	* @run junit/othervm/timeout=1000 -Djsr166.testImplementationDetails=true JSR166TestCase
15	>	* @run junit/othervm/timeout=1000 -Djava.util.concurrent.ForkJoinPool.common.parallelism=0 -Djsr166.testImplementationDetails=true JSR166TestCase
16	>	* @run junit/othervm/timeout=1000 -Djava.util.concurrent.ForkJoinPool.common.parallelism=1 -Djava.util.secureRandomSeed=true JSR166TestCase
17	>	*/
18	>
19		import static java.util.concurrent.TimeUnit.MILLISECONDS;
20	+	import static java.util.concurrent.TimeUnit.MINUTES;
21	+	import static java.util.concurrent.TimeUnit.NANOSECONDS;
22	+
23	+	import java.io.ByteArrayInputStream;
24	+	import java.io.ByteArrayOutputStream;
25	+	import java.io.ObjectInputStream;
26	+	import java.io.ObjectOutputStream;
27	+	import java.lang.management.ManagementFactory;
28	+	import java.lang.management.ThreadInfo;
29	+	import java.lang.management.ThreadMXBean;
30	+	import java.lang.reflect.Constructor;
31	+	import java.lang.reflect.Method;
32	+	import java.lang.reflect.Modifier;
33	+	import java.nio.file.Files;
34	+	import java.nio.file.Paths;
35		import java.security.CodeSource;
36		import java.security.Permission;
37		import java.security.PermissionCollection;
#	Line 18 | Line 39 | import java.security.Permissions;
39		import java.security.Policy;
40		import java.security.ProtectionDomain;
41		import java.security.SecurityPermission;
42	+	import java.util.ArrayList;
43	+	import java.util.Arrays;
44	+	import java.util.Date;
45	+	import java.util.Enumeration;
46	+	import java.util.Iterator;
47	+	import java.util.List;
48	+	import java.util.NoSuchElementException;
49	+	import java.util.PropertyPermission;
50	+	import java.util.concurrent.BlockingQueue;
51	+	import java.util.concurrent.Callable;
52	+	import java.util.concurrent.CountDownLatch;
53	+	import java.util.concurrent.CyclicBarrier;
54	+	import java.util.concurrent.ExecutionException;
55	+	import java.util.concurrent.Executors;
56	+	import java.util.concurrent.ExecutorService;
57	+	import java.util.concurrent.ForkJoinPool;
58	+	import java.util.concurrent.Future;
59	+	import java.util.concurrent.RecursiveAction;
60	+	import java.util.concurrent.RecursiveTask;
61	+	import java.util.concurrent.RejectedExecutionHandler;
62	+	import java.util.concurrent.Semaphore;
63	+	import java.util.concurrent.SynchronousQueue;
64	+	import java.util.concurrent.ThreadFactory;
65	+	import java.util.concurrent.ThreadPoolExecutor;
66	+	import java.util.concurrent.TimeoutException;
67	+	import java.util.concurrent.atomic.AtomicBoolean;
68	+	import java.util.concurrent.atomic.AtomicReference;
69	+	import java.util.regex.Matcher;
70	+	import java.util.regex.Pattern;
71	+
72	+	import junit.framework.AssertionFailedError;
73	+	import junit.framework.Test;
74	+	import junit.framework.TestCase;
75	+	import junit.framework.TestResult;
76	+	import junit.framework.TestSuite;
77
78		/**
79		* Base class for JSR166 Junit TCK tests.  Defines some constants,
#	Line 29 | Line 85 | import java.security.SecurityPermission;
85		*
86		* <ol>
87		*
88	<	* <li> All assertions in code running in generated threads must use
88	>	* <li>All assertions in code running in generated threads must use
89		* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link
90		* #threadAssertEquals}, or {@link #threadAssertNull}, (not
91		* {@code fail}, {@code assertTrue}, etc.) It is OK (but not
92		* particularly recommended) for other code to use these forms too.
93		* Only the most typically used JUnit assertion methods are defined
94	<	* this way, but enough to live with.</li>
94	>	* this way, but enough to live with.
95		*
96	<	* <li> If you override {@link #setUp} or {@link #tearDown}, make sure
96	>	* <li>If you override {@link #setUp} or {@link #tearDown}, make sure
97		* to invoke {@code super.setUp} and {@code super.tearDown} within
98		* them. These methods are used to clear and check for thread
99	<	* assertion failures.</li>
99	>	* assertion failures.
100		*
101		* <li>All delays and timeouts must use one of the constants {@code
102		* SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS},
#	Line 51 | Line 107 | import java.security.SecurityPermission;
107		* is always discriminable as larger than SHORT and smaller than
108		* MEDIUM.  And so on. These constants are set to conservative values,
109		* but even so, if there is ever any doubt, they can all be increased
110	<	* in one spot to rerun tests on slower platforms.</li>
110	>	* in one spot to rerun tests on slower platforms.
111		*
112	<	* <li> All threads generated must be joined inside each test case
112	>	* <li>All threads generated must be joined inside each test case
113		* method (or {@code fail} to do so) before returning from the
114		* method. The {@code joinPool} method can be used to do this when
115	<	* using Executors.</li>
115	>	* using Executors.
116		*
117		* </ol>
118		*
119	<	* <p> <b>Other notes</b>
119	>	* <p><b>Other notes</b>
120		* <ul>
121		*
122	<	* <li> Usually, there is one testcase method per JSR166 method
122	>	* <li>Usually, there is one testcase method per JSR166 method
123		* covering "normal" operation, and then as many exception-testing
124		* methods as there are exceptions the method can throw. Sometimes
125		* there are multiple tests per JSR166 method when the different
126		* "normal" behaviors differ significantly. And sometimes testcases
127	<	* cover multiple methods when they cannot be tested in
72	<	* isolation.</li>
127	>	* cover multiple methods when they cannot be tested in isolation.
128		*
129	<	* <li> The documentation style for testcases is to provide as javadoc
129	>	* <li>The documentation style for testcases is to provide as javadoc
130		* a simple sentence or two describing the property that the testcase
131		* method purports to test. The javadocs do not say anything about how
132	<	* the property is tested. To find out, read the code.</li>
132	>	* the property is tested. To find out, read the code.
133		*
134	<	* <li> These tests are "conformance tests", and do not attempt to
134	>	* <li>These tests are "conformance tests", and do not attempt to
135		* test throughput, latency, scalability or other performance factors
136		* (see the separate "jtreg" tests for a set intended to check these
137		* for the most central aspects of functionality.) So, most tests use
138		* the smallest sensible numbers of threads, collection sizes, etc
139	<	* needed to check basic conformance.</li>
139	>	* needed to check basic conformance.
140		*
141		* <li>The test classes currently do not declare inclusion in
142		* any particular package to simplify things for people integrating
143	<	* them in TCK test suites.</li>
143	>	* them in TCK test suites.
144		*
145	<	* <li> As a convenience, the {@code main} of this class (JSR166TestCase)
146	<	* runs all JSR166 unit tests.</li>
145	>	* <li>As a convenience, the {@code main} of this class (JSR166TestCase)
146	>	* runs all JSR166 unit tests.
147		*
148		* </ul>
149		*/
#	Line 96 | Line 151 | public class JSR166TestCase extends Test
151		private static final boolean useSecurityManager =
152		Boolean.getBoolean("jsr166.useSecurityManager");
153
154	+	protected static final boolean expensiveTests =
155	+	Boolean.getBoolean("jsr166.expensiveTests");
156	+
157	+	/**
158	+	* If true, also run tests that are not part of the official tck
159	+	* because they test unspecified implementation details.
160	+	*/
161	+	protected static final boolean testImplementationDetails =
162	+	Boolean.getBoolean("jsr166.testImplementationDetails");
163	+
164	+	/**
165	+	* If true, report on stdout all "slow" tests, that is, ones that
166	+	* take more than profileThreshold milliseconds to execute.
167	+	*/
168	+	private static final boolean profileTests =
169	+	Boolean.getBoolean("jsr166.profileTests");
170	+
171	+	/**
172	+	* The number of milliseconds that tests are permitted for
173	+	* execution without being reported, when profileTests is set.
174	+	*/
175	+	private static final long profileThreshold =
176	+	Long.getLong("jsr166.profileThreshold", 100);
177	+
178	+	/**
179	+	* The number of repetitions per test (for tickling rare bugs).
180	+	*/
181	+	private static final int runsPerTest =
182	+	Integer.getInteger("jsr166.runsPerTest", 1);
183	+
184	+	/**
185	+	* The number of repetitions of the test suite (for finding leaks?).
186	+	*/
187	+	private static final int suiteRuns =
188	+	Integer.getInteger("jsr166.suiteRuns", 1);
189	+
190		/**
191	<	* Runs all JSR166 unit tests using junit.textui.TestRunner
191	>	* Returns the value of the system property, or NaN if not defined.
192	>	*/
193	>	private static float systemPropertyValue(String name) {
194	>	String floatString = System.getProperty(name);
195	>	if (floatString == null)
196	>	return Float.NaN;
197	>	try {
198	>	return Float.parseFloat(floatString);
199	>	} catch (NumberFormatException ex) {
200	>	throw new IllegalArgumentException(
201	>	String.format("Bad float value in system property %s=%s",
202	>	name, floatString));
203	>	}
204	>	}
205	>
206	>	/**
207	>	* The scaling factor to apply to standard delays used in tests.
208	>	* May be initialized from any of:
209	>	* - the "jsr166.delay.factor" system property
210	>	* - the "test.timeout.factor" system property (as used by jtreg)
211	>	*   See: http://openjdk.java.net/jtreg/tag-spec.html
212	>	* - hard-coded fuzz factor when using a known slowpoke VM
213	>	*/
214	>	private static final float delayFactor = delayFactor();
215	>
216	>	private static float delayFactor() {
217	>	float x;
218	>	if (!Float.isNaN(x = systemPropertyValue("jsr166.delay.factor")))
219	>	return x;
220	>	if (!Float.isNaN(x = systemPropertyValue("test.timeout.factor")))
221	>	return x;
222	>	String prop = System.getProperty("java.vm.version");
223	>	if (prop != null && prop.matches(".*debug.*"))
224	>	return 4.0f; // How much slower is fastdebug than product?!
225	>	return 1.0f;
226	>	}
227	>
228	>	public JSR166TestCase() { super(); }
229	>	public JSR166TestCase(String name) { super(name); }
230	>
231	>	/**
232	>	* A filter for tests to run, matching strings of the form
233	>	* methodName(className), e.g. "testInvokeAll5(ForkJoinPoolTest)"
234	>	* Usefully combined with jsr166.runsPerTest.
235	>	*/
236	>	private static final Pattern methodFilter = methodFilter();
237	>
238	>	private static Pattern methodFilter() {
239	>	String regex = System.getProperty("jsr166.methodFilter");
240	>	return (regex == null) ? null : Pattern.compile(regex);
241	>	}
242	>
243	>	// Instrumentation to debug very rare, but very annoying hung test runs.
244	>	static volatile TestCase currentTestCase;
245	>	// static volatile int currentRun = 0;
246	>	static {
247	>	Runnable checkForWedgedTest = new Runnable() { public void run() {
248	>	// Avoid spurious reports with enormous runsPerTest.
249	>	// A single test case run should never take more than 1 second.
250	>	// But let's cap it at the high end too ...
251	>	final int timeoutMinutes =
252	>	Math.min(15, Math.max(runsPerTest / 60, 1));
253	>	for (TestCase lastTestCase = currentTestCase;;) {
254	>	try { MINUTES.sleep(timeoutMinutes); }
255	>	catch (InterruptedException unexpected) { break; }
256	>	if (lastTestCase == currentTestCase) {
257	>	System.err.printf(
258	>	"Looks like we're stuck running test: %s%n",
259	>	lastTestCase);
260	>	//                     System.err.printf(
261	>	//                         "Looks like we're stuck running test: %s (%d/%d)%n",
262	>	//                         lastTestCase, currentRun, runsPerTest);
263	>	//                     System.err.println("availableProcessors=" +
264	>	//                         Runtime.getRuntime().availableProcessors());
265	>	//                     System.err.printf("cpu model = %s%n", cpuModel());
266	>	dumpTestThreads();
267	>	// one stack dump is probably enough; more would be spam
268	>	break;
269	>	}
270	>	lastTestCase = currentTestCase;
271	>	}}};
272	>	Thread thread = new Thread(checkForWedgedTest, "checkForWedgedTest");
273	>	thread.setDaemon(true);
274	>	thread.start();
275	>	}
276	>
277	>	//     public static String cpuModel() {
278	>	//         try {
279	>	//             Matcher matcher = Pattern.compile("model name\\s*: (.*)")
280	>	//                 .matcher(new String(
281	>	//                      Files.readAllBytes(Paths.get("/proc/cpuinfo")), "UTF-8"));
282	>	//             matcher.find();
283	>	//             return matcher.group(1);
284	>	//         } catch (Exception ex) { return null; }
285	>	//     }
286	>
287	>	public void runBare() throws Throwable {
288	>	currentTestCase = this;
289	>	if (methodFilter == null
290	>	|| methodFilter.matcher(toString()).find())
291	>	super.runBare();
292	>	}
293	>
294	>	protected void runTest() throws Throwable {
295	>	for (int i = 0; i < runsPerTest; i++) {
296	>	// currentRun = i;
297	>	if (profileTests)
298	>	runTestProfiled();
299	>	else
300	>	super.runTest();
301	>	}
302	>	}
303	>
304	>	protected void runTestProfiled() throws Throwable {
305	>	for (int i = 0; i < 2; i++) {
306	>	long startTime = System.nanoTime();
307	>	super.runTest();
308	>	long elapsedMillis = millisElapsedSince(startTime);
309	>	if (elapsedMillis < profileThreshold)
310	>	break;
311	>	// Never report first run of any test; treat it as a
312	>	// warmup run, notably to trigger all needed classloading,
313	>	if (i > 0)
314	>	System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
315	>	}
316	>	}
317	>
318	>	/**
319	>	* Runs all JSR166 unit tests using junit.textui.TestRunner.
320		*/
321		public static void main(String[] args) {
322	+	main(suite(), args);
323	+	}
324	+
325	+	static class PithyResultPrinter extends junit.textui.ResultPrinter {
326	+	PithyResultPrinter(java.io.PrintStream writer) { super(writer); }
327	+	long runTime;
328	+	public void startTest(Test test) {}
329	+	protected void printHeader(long runTime) {
330	+	this.runTime = runTime; // defer printing for later
331	+	}
332	+	protected void printFooter(TestResult result) {
333	+	if (result.wasSuccessful()) {
334	+	getWriter().println("OK (" + result.runCount() + " tests)"
335	+	+ "  Time: " + elapsedTimeAsString(runTime));
336	+	} else {
337	+	getWriter().println("Time: " + elapsedTimeAsString(runTime));
338	+	super.printFooter(result);
339	+	}
340	+	}
341	+	}
342	+
343	+	/**
344	+	* Returns a TestRunner that doesn't bother with unnecessary
345	+	* fluff, like printing a "." for each test case.
346	+	*/
347	+	static junit.textui.TestRunner newPithyTestRunner() {
348	+	junit.textui.TestRunner runner = new junit.textui.TestRunner();
349	+	runner.setPrinter(new PithyResultPrinter(System.out));
350	+	return runner;
351	+	}
352	+
353	+	/**
354	+	* Runs all unit tests in the given test suite.
355	+	* Actual behavior influenced by jsr166.* system properties.
356	+	*/
357	+	static void main(Test suite, String[] args) {
358		if (useSecurityManager) {
359		System.err.println("Setting a permissive security manager");
360		Policy.setPolicy(permissivePolicy());
361		System.setSecurityManager(new SecurityManager());
362		}
363	<	int iters = 1;
364	<	if (args.length > 0)
365	<	iters = Integer.parseInt(args[0]);
366	<	Test s = suite();
112	<	for (int i = 0; i < iters; ++i) {
113	<	junit.textui.TestRunner.run(s);
363	>	for (int i = 0; i < suiteRuns; i++) {
364	>	TestResult result = newPithyTestRunner().doRun(suite);
365	>	if (!result.wasSuccessful())
366	>	System.exit(1);
367		System.gc();
368		System.runFinalization();
369		}
370	<	System.exit(0);
370	>	}
371	>
372	>	public static TestSuite newTestSuite(Object... suiteOrClasses) {
373	>	TestSuite suite = new TestSuite();
374	>	for (Object suiteOrClass : suiteOrClasses) {
375	>	if (suiteOrClass instanceof TestSuite)
376	>	suite.addTest((TestSuite) suiteOrClass);
377	>	else if (suiteOrClass instanceof Class)
378	>	suite.addTest(new TestSuite((Class<?>) suiteOrClass));
379	>	else
380	>	throw new ClassCastException("not a test suite or class");
381	>	}
382	>	return suite;
383	>	}
384	>
385	>	public static void addNamedTestClasses(TestSuite suite,
386	>	String... testClassNames) {
387	>	for (String testClassName : testClassNames) {
388	>	try {
389	>	Class<?> testClass = Class.forName(testClassName);
390	>	Method m = testClass.getDeclaredMethod("suite",
391	>	new Class<?>[0]);
392	>	suite.addTest(newTestSuite((Test)m.invoke(null)));
393	>	} catch (Exception e) {
394	>	throw new Error("Missing test class", e);
395	>	}
396	>	}
397	>	}
398	>
399	>	public static final double JAVA_CLASS_VERSION;
400	>	public static final String JAVA_SPECIFICATION_VERSION;
401	>	static {
402	>	try {
403	>	JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
404	>	new java.security.PrivilegedAction<Double>() {
405	>	public Double run() {
406	>	return Double.valueOf(System.getProperty("java.class.version"));}});
407	>	JAVA_SPECIFICATION_VERSION = java.security.AccessController.doPrivileged(
408	>	new java.security.PrivilegedAction<String>() {
409	>	public String run() {
410	>	return System.getProperty("java.specification.version");}});
411	>	} catch (Throwable t) {
412	>	throw new Error(t);
413	>	}
414	>	}
415	>
416	>	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
417	>	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
418	>	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
419	>	public static boolean atLeastJava9() {
420	>	return JAVA_CLASS_VERSION >= 53.0
421	>	// As of 2015-09, java9 still uses 52.0 class file version
422	>	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?(9|[0-9][0-9])$");
423	>	}
424	>	public static boolean atLeastJava10() {
425	>	return JAVA_CLASS_VERSION >= 54.0
426	>	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?[0-9][0-9]$");
427		}
428
429		/**
430	<	* Collects all JSR166 unit tests as one suite
430	>	* Collects all JSR166 unit tests as one suite.
431		*/
432		public static Test suite() {
433	<	TestSuite suite = new TestSuite("JSR166 Unit Tests");
434	<
435	<	suite.addTest(new TestSuite(ForkJoinPoolTest.class));
436	<	suite.addTest(new TestSuite(ForkJoinTaskTest.class));
437	<	suite.addTest(new TestSuite(RecursiveActionTest.class));
438	<	suite.addTest(new TestSuite(RecursiveTaskTest.class));
439	<	suite.addTest(new TestSuite(LinkedTransferQueueTest.class));
440	<	suite.addTest(new TestSuite(PhaserTest.class));
441	<	suite.addTest(new TestSuite(ThreadLocalRandomTest.class));
442	<	suite.addTest(new TestSuite(AbstractExecutorServiceTest.class));
443	<	suite.addTest(new TestSuite(AbstractQueueTest.class));
444	<	suite.addTest(new TestSuite(AbstractQueuedSynchronizerTest.class));
445	<	suite.addTest(new TestSuite(AbstractQueuedLongSynchronizerTest.class));
446	<	suite.addTest(new TestSuite(ArrayBlockingQueueTest.class));
447	<	suite.addTest(new TestSuite(ArrayDequeTest.class));
448	<	suite.addTest(new TestSuite(AtomicBooleanTest.class));
449	<	suite.addTest(new TestSuite(AtomicIntegerArrayTest.class));
450	<	suite.addTest(new TestSuite(AtomicIntegerFieldUpdaterTest.class));
451	<	suite.addTest(new TestSuite(AtomicIntegerTest.class));
452	<	suite.addTest(new TestSuite(AtomicLongArrayTest.class));
453	<	suite.addTest(new TestSuite(AtomicLongFieldUpdaterTest.class));
454	<	suite.addTest(new TestSuite(AtomicLongTest.class));
455	<	suite.addTest(new TestSuite(AtomicMarkableReferenceTest.class));
456	<	suite.addTest(new TestSuite(AtomicReferenceArrayTest.class));
457	<	suite.addTest(new TestSuite(AtomicReferenceFieldUpdaterTest.class));
458	<	suite.addTest(new TestSuite(AtomicReferenceTest.class));
459	<	suite.addTest(new TestSuite(AtomicStampedReferenceTest.class));
460	<	suite.addTest(new TestSuite(ConcurrentHashMapTest.class));
461	<	suite.addTest(new TestSuite(ConcurrentLinkedDequeTest.class));
462	<	suite.addTest(new TestSuite(ConcurrentLinkedQueueTest.class));
463	<	suite.addTest(new TestSuite(ConcurrentSkipListMapTest.class));
464	<	suite.addTest(new TestSuite(ConcurrentSkipListSubMapTest.class));
465	<	suite.addTest(new TestSuite(ConcurrentSkipListSetTest.class));
466	<	suite.addTest(new TestSuite(ConcurrentSkipListSubSetTest.class));
467	<	suite.addTest(new TestSuite(CopyOnWriteArrayListTest.class));
468	<	suite.addTest(new TestSuite(CopyOnWriteArraySetTest.class));
469	<	suite.addTest(new TestSuite(CountDownLatchTest.class));
470	<	suite.addTest(new TestSuite(CyclicBarrierTest.class));
471	<	suite.addTest(new TestSuite(DelayQueueTest.class));
472	<	suite.addTest(new TestSuite(EntryTest.class));
473	<	suite.addTest(new TestSuite(ExchangerTest.class));
474	<	suite.addTest(new TestSuite(ExecutorsTest.class));
475	<	suite.addTest(new TestSuite(ExecutorCompletionServiceTest.class));
476	<	suite.addTest(new TestSuite(FutureTaskTest.class));
477	<	suite.addTest(new TestSuite(LinkedBlockingDequeTest.class));
478	<	suite.addTest(new TestSuite(LinkedBlockingQueueTest.class));
479	<	suite.addTest(new TestSuite(LinkedListTest.class));
480	<	suite.addTest(new TestSuite(LockSupportTest.class));
481	<	suite.addTest(new TestSuite(PriorityBlockingQueueTest.class));
482	<	suite.addTest(new TestSuite(PriorityQueueTest.class));
483	<	suite.addTest(new TestSuite(ReentrantLockTest.class));
484	<	suite.addTest(new TestSuite(ReentrantReadWriteLockTest.class));
485	<	suite.addTest(new TestSuite(ScheduledExecutorTest.class));
486	<	suite.addTest(new TestSuite(ScheduledExecutorSubclassTest.class));
487	<	suite.addTest(new TestSuite(SemaphoreTest.class));
488	<	suite.addTest(new TestSuite(SynchronousQueueTest.class));
489	<	suite.addTest(new TestSuite(SystemTest.class));
490	<	suite.addTest(new TestSuite(ThreadLocalTest.class));
491	<	suite.addTest(new TestSuite(ThreadPoolExecutorTest.class));
492	<	suite.addTest(new TestSuite(ThreadPoolExecutorSubclassTest.class));
493	<	suite.addTest(new TestSuite(ThreadTest.class));
494	<	suite.addTest(new TestSuite(TimeUnitTest.class));
495	<	suite.addTest(new TestSuite(TreeMapTest.class));
496	<	suite.addTest(new TestSuite(TreeSetTest.class));
497	<	suite.addTest(new TestSuite(TreeSubMapTest.class));
498	<	suite.addTest(new TestSuite(TreeSubSetTest.class));
433	>	// Java7+ test classes
434	>	TestSuite suite = newTestSuite(
435	>	ForkJoinPoolTest.suite(),
436	>	ForkJoinTaskTest.suite(),
437	>	RecursiveActionTest.suite(),
438	>	RecursiveTaskTest.suite(),
439	>	LinkedTransferQueueTest.suite(),
440	>	PhaserTest.suite(),
441	>	ThreadLocalRandomTest.suite(),
442	>	AbstractExecutorServiceTest.suite(),
443	>	AbstractQueueTest.suite(),
444	>	AbstractQueuedSynchronizerTest.suite(),
445	>	AbstractQueuedLongSynchronizerTest.suite(),
446	>	ArrayBlockingQueueTest.suite(),
447	>	ArrayDequeTest.suite(),
448	>	AtomicBooleanTest.suite(),
449	>	AtomicIntegerArrayTest.suite(),
450	>	AtomicIntegerFieldUpdaterTest.suite(),
451	>	AtomicIntegerTest.suite(),
452	>	AtomicLongArrayTest.suite(),
453	>	AtomicLongFieldUpdaterTest.suite(),
454	>	AtomicLongTest.suite(),
455	>	AtomicMarkableReferenceTest.suite(),
456	>	AtomicReferenceArrayTest.suite(),
457	>	AtomicReferenceFieldUpdaterTest.suite(),
458	>	AtomicReferenceTest.suite(),
459	>	AtomicStampedReferenceTest.suite(),
460	>	ConcurrentHashMapTest.suite(),
461	>	ConcurrentLinkedDequeTest.suite(),
462	>	ConcurrentLinkedQueueTest.suite(),
463	>	ConcurrentSkipListMapTest.suite(),
464	>	ConcurrentSkipListSubMapTest.suite(),
465	>	ConcurrentSkipListSetTest.suite(),
466	>	ConcurrentSkipListSubSetTest.suite(),
467	>	CopyOnWriteArrayListTest.suite(),
468	>	CopyOnWriteArraySetTest.suite(),
469	>	CountDownLatchTest.suite(),
470	>	CyclicBarrierTest.suite(),
471	>	DelayQueueTest.suite(),
472	>	EntryTest.suite(),
473	>	ExchangerTest.suite(),
474	>	ExecutorsTest.suite(),
475	>	ExecutorCompletionServiceTest.suite(),
476	>	FutureTaskTest.suite(),
477	>	LinkedBlockingDequeTest.suite(),
478	>	LinkedBlockingQueueTest.suite(),
479	>	LinkedListTest.suite(),
480	>	LockSupportTest.suite(),
481	>	PriorityBlockingQueueTest.suite(),
482	>	PriorityQueueTest.suite(),
483	>	ReentrantLockTest.suite(),
484	>	ReentrantReadWriteLockTest.suite(),
485	>	ScheduledExecutorTest.suite(),
486	>	ScheduledExecutorSubclassTest.suite(),
487	>	SemaphoreTest.suite(),
488	>	SynchronousQueueTest.suite(),
489	>	SystemTest.suite(),
490	>	ThreadLocalTest.suite(),
491	>	ThreadPoolExecutorTest.suite(),
492	>	ThreadPoolExecutorSubclassTest.suite(),
493	>	ThreadTest.suite(),
494	>	TimeUnitTest.suite(),
495	>	TreeMapTest.suite(),
496	>	TreeSetTest.suite(),
497	>	TreeSubMapTest.suite(),
498	>	TreeSubSetTest.suite());
499	>
500	>	// Java8+ test classes
501	>	if (atLeastJava8()) {
502	>	String[] java8TestClassNames = {
503	>	"Atomic8Test",
504	>	"CompletableFutureTest",
505	>	"ConcurrentHashMap8Test",
506	>	"CountedCompleterTest",
507	>	"DoubleAccumulatorTest",
508	>	"DoubleAdderTest",
509	>	"ForkJoinPool8Test",
510	>	"ForkJoinTask8Test",
511	>	"LongAccumulatorTest",
512	>	"LongAdderTest",
513	>	"SplittableRandomTest",
514	>	"StampedLockTest",
515	>	"SubmissionPublisherTest",
516	>	"ThreadLocalRandom8Test",
517	>	"TimeUnit8Test",
518	>	};
519	>	addNamedTestClasses(suite, java8TestClassNames);
520	>	}
521	>
522	>	// Java9+ test classes
523	>	if (atLeastJava9()) {
524	>	String[] java9TestClassNames = {
525	>	"AtomicBoolean9Test",
526	>	"AtomicInteger9Test",
527	>	"AtomicIntegerArray9Test",
528	>	"AtomicLong9Test",
529	>	"AtomicLongArray9Test",
530	>	"AtomicReference9Test",
531	>	"AtomicReferenceArray9Test",
532	>	"ExecutorCompletionService9Test",
533	>	};
534	>	addNamedTestClasses(suite, java9TestClassNames);
535	>	}
536
537		return suite;
538		}
539
540	+	/** Returns list of junit-style test method names in given class. */
541	+	public static ArrayList<String> testMethodNames(Class<?> testClass) {
542	+	Method[] methods = testClass.getDeclaredMethods();
543	+	ArrayList<String> names = new ArrayList<String>(methods.length);
544	+	for (Method method : methods) {
545	+	if (method.getName().startsWith("test")
546	+	&& Modifier.isPublic(method.getModifiers())
547	+	// method.getParameterCount() requires jdk8+
548	+	&& method.getParameterTypes().length == 0) {
549	+	names.add(method.getName());
550	+	}
551	+	}
552	+	return names;
553	+	}
554	+
555	+	/**
556	+	* Returns junit-style testSuite for the given test class, but
557	+	* parameterized by passing extra data to each test.
558	+	*/
559	+	public static <ExtraData> Test parameterizedTestSuite
560	+	(Class<? extends JSR166TestCase> testClass,
561	+	Class<ExtraData> dataClass,
562	+	ExtraData data) {
563	+	try {
564	+	TestSuite suite = new TestSuite();
565	+	Constructor c =
566	+	testClass.getDeclaredConstructor(dataClass, String.class);
567	+	for (String methodName : testMethodNames(testClass))
568	+	suite.addTest((Test) c.newInstance(data, methodName));
569	+	return suite;
570	+	} catch (Exception e) {
571	+	throw new Error(e);
572	+	}
573	+	}
574	+
575	+	/**
576	+	* Returns junit-style testSuite for the jdk8 extension of the
577	+	* given test class, but parameterized by passing extra data to
578	+	* each test.  Uses reflection to allow compilation in jdk7.
579	+	*/
580	+	public static <ExtraData> Test jdk8ParameterizedTestSuite
581	+	(Class<? extends JSR166TestCase> testClass,
582	+	Class<ExtraData> dataClass,
583	+	ExtraData data) {
584	+	if (atLeastJava8()) {
585	+	String name = testClass.getName();
586	+	String name8 = name.replaceAll("Test$", "8Test");
587	+	if (name.equals(name8)) throw new Error(name);
588	+	try {
589	+	return (Test)
590	+	Class.forName(name8)
591	+	.getMethod("testSuite", new Class[] { dataClass })
592	+	.invoke(null, data);
593	+	} catch (Exception e) {
594	+	throw new Error(e);
595	+	}
596	+	} else {
597	+	return new TestSuite();
598	+	}
599	+	}
600	+
601	+	// Delays for timing-dependent tests, in milliseconds.
602
603		public static long SHORT_DELAY_MS;
604		public static long SMALL_DELAY_MS;
605		public static long MEDIUM_DELAY_MS;
606		public static long LONG_DELAY_MS;
607
200	–
608		/**
609	<	* Returns the shortest timed delay. This could
610	<	* be reimplemented to use for example a Property.
609	>	* Returns the shortest timed delay. This can be scaled up for
610	>	* slow machines using the jsr166.delay.factor system property,
611	>	* or via jtreg's -timeoutFactor: flag.
612	>	* http://openjdk.java.net/jtreg/command-help.html
613		*/
614		protected long getShortDelay() {
615	<	return 50;
615	>	return (long) (50 * delayFactor);
616		}
617
209	–
618		/**
619		* Sets delays as multiples of SHORT_DELAY.
620		*/
#	Line 214 | Line 622 | public class JSR166TestCase extends Test
622		SHORT_DELAY_MS = getShortDelay();
623		SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
624		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
625	<	LONG_DELAY_MS   = SHORT_DELAY_MS * 50;
625	>	LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
626	>	}
627	>
628	>	/**
629	>	* Returns a timeout in milliseconds to be used in tests that
630	>	* verify that operations block or time out.
631	>	*/
632	>	long timeoutMillis() {
633	>	return SHORT_DELAY_MS / 4;
634	>	}
635	>
636	>	/**
637	>	* Returns a new Date instance representing a time at least
638	>	* delayMillis milliseconds in the future.
639	>	*/
640	>	Date delayedDate(long delayMillis) {
641	>	// Add 1 because currentTimeMillis is known to round into the past.
642	>	return new Date(System.currentTimeMillis() + delayMillis + 1);
643		}
644
645		/**
#	Line 230 | Line 655 | public class JSR166TestCase extends Test
655		* the same test have no effect.
656		*/
657		public void threadRecordFailure(Throwable t) {
658	+	System.err.println(t);
659	+	dumpTestThreads();
660		threadFailure.compareAndSet(null, t);
661		}
662
#	Line 237 | Line 664 | public class JSR166TestCase extends Test
664		setDelays();
665		}
666
667	+	void tearDownFail(String format, Object... args) {
668	+	String msg = toString() + ": " + String.format(format, args);
669	+	System.err.println(msg);
670	+	dumpTestThreads();
671	+	throw new AssertionFailedError(msg);
672	+	}
673	+
674		/**
675	+	* Extra checks that get done for all test cases.
676	+	*
677		* Triggers test case failure if any thread assertions have failed,
678		* by rethrowing, in the test harness thread, any exception recorded
679		* earlier by threadRecordFailure.
680	+	*
681	+	* Triggers test case failure if interrupt status is set in the main thread.
682		*/
683		public void tearDown() throws Exception {
684	<	Throwable t = threadFailure.get();
684	>	Throwable t = threadFailure.getAndSet(null);
685		if (t != null) {
686		if (t instanceof Error)
687		throw (Error) t;
#	Line 251 | Line 689 | public class JSR166TestCase extends Test
689		throw (RuntimeException) t;
690		else if (t instanceof Exception)
691		throw (Exception) t;
692	<	else
693	<	throw new AssertionError(t);
692	>	else {
693	>	AssertionFailedError afe =
694	>	new AssertionFailedError(t.toString());
695	>	afe.initCause(t);
696	>	throw afe;
697	>	}
698		}
699	+
700	+	if (Thread.interrupted())
701	+	tearDownFail("interrupt status set in main thread");
702	+
703	+	checkForkJoinPoolThreadLeaks();
704	+	}
705	+
706	+	/**
707	+	* Finds missing PoolCleaners
708	+	*/
709	+	void checkForkJoinPoolThreadLeaks() throws InterruptedException {
710	+	Thread[] survivors = new Thread[7];
711	+	int count = Thread.enumerate(survivors);
712	+	for (int i = 0; i < count; i++) {
713	+	Thread thread = survivors[i];
714	+	String name = thread.getName();
715	+	if (name.startsWith("ForkJoinPool-")) {
716	+	// give thread some time to terminate
717	+	thread.join(LONG_DELAY_MS);
718	+	if (thread.isAlive())
719	+	tearDownFail("Found leaked ForkJoinPool thread thread=%s",
720	+	thread);
721	+	}
722	+	}
723	+
724	+	if (!ForkJoinPool.commonPool()
725	+	.awaitQuiescence(LONG_DELAY_MS, MILLISECONDS))
726	+	tearDownFail("ForkJoin common pool thread stuck");
727		}
728
729		/**
730		* Just like fail(reason), but additionally recording (using
731	<	* threadRecordFailure) any AssertionError thrown, so that the current
732	<	* testcase will fail.
731	>	* threadRecordFailure) any AssertionFailedError thrown, so that
732	>	* the current testcase will fail.
733		*/
734		public void threadFail(String reason) {
735		try {
736		fail(reason);
737	<	} catch (Throwable t) {
737	>	} catch (AssertionFailedError t) {
738		threadRecordFailure(t);
739	<	fail(reason);
739	>	throw t;
740		}
741		}
742
743		/**
744		* Just like assertTrue(b), but additionally recording (using
745	<	* threadRecordFailure) any AssertionError thrown, so that the current
746	<	* testcase will fail.
745	>	* threadRecordFailure) any AssertionFailedError thrown, so that
746	>	* the current testcase will fail.
747		*/
748		public void threadAssertTrue(boolean b) {
749		try {
750		assertTrue(b);
751	<	} catch (AssertionError t) {
751	>	} catch (AssertionFailedError t) {
752		threadRecordFailure(t);
753		throw t;
754		}
#	Line 286 | Line 756 | public class JSR166TestCase extends Test
756
757		/**
758		* Just like assertFalse(b), but additionally recording (using
759	<	* threadRecordFailure) any AssertionError thrown, so that the
760	<	* current testcase will fail.
759	>	* threadRecordFailure) any AssertionFailedError thrown, so that
760	>	* the current testcase will fail.
761		*/
762		public void threadAssertFalse(boolean b) {
763		try {
764		assertFalse(b);
765	<	} catch (AssertionError t) {
765	>	} catch (AssertionFailedError t) {
766		threadRecordFailure(t);
767		throw t;
768		}
#	Line 300 | Line 770 | public class JSR166TestCase extends Test
770
771		/**
772		* Just like assertNull(x), but additionally recording (using
773	<	* threadRecordFailure) any AssertionError thrown, so that the
774	<	* current testcase will fail.
773	>	* threadRecordFailure) any AssertionFailedError thrown, so that
774	>	* the current testcase will fail.
775		*/
776		public void threadAssertNull(Object x) {
777		try {
778		assertNull(x);
779	<	} catch (AssertionError t) {
779	>	} catch (AssertionFailedError t) {
780		threadRecordFailure(t);
781		throw t;
782		}
#	Line 314 | Line 784 | public class JSR166TestCase extends Test
784
785		/**
786		* Just like assertEquals(x, y), but additionally recording (using
787	<	* threadRecordFailure) any AssertionError thrown, so that the
788	<	* current testcase will fail.
787	>	* threadRecordFailure) any AssertionFailedError thrown, so that
788	>	* the current testcase will fail.
789		*/
790		public void threadAssertEquals(long x, long y) {
791		try {
792		assertEquals(x, y);
793	<	} catch (AssertionError t) {
793	>	} catch (AssertionFailedError t) {
794		threadRecordFailure(t);
795		throw t;
796		}
#	Line 328 | Line 798 | public class JSR166TestCase extends Test
798
799		/**
800		* Just like assertEquals(x, y), but additionally recording (using
801	<	* threadRecordFailure) any AssertionError thrown, so that the
802	<	* current testcase will fail.
801	>	* threadRecordFailure) any AssertionFailedError thrown, so that
802	>	* the current testcase will fail.
803		*/
804		public void threadAssertEquals(Object x, Object y) {
805		try {
806		assertEquals(x, y);
807	<	} catch (AssertionError t) {
808	<	threadRecordFailure(t);
809	<	throw t;
807	>	} catch (AssertionFailedError fail) {
808	>	threadRecordFailure(fail);
809	>	throw fail;
810	>	} catch (Throwable fail) {
811	>	threadUnexpectedException(fail);
812		}
813		}
814
815		/**
816		* Just like assertSame(x, y), but additionally recording (using
817	<	* threadRecordFailure) any AssertionError thrown, so that the
818	<	* current testcase will fail.
817	>	* threadRecordFailure) any AssertionFailedError thrown, so that
818	>	* the current testcase will fail.
819		*/
820		public void threadAssertSame(Object x, Object y) {
821		try {
822		assertSame(x, y);
823	<	} catch (AssertionError t) {
824	<	threadRecordFailure(t);
825	<	throw t;
823	>	} catch (AssertionFailedError fail) {
824	>	threadRecordFailure(fail);
825	>	throw fail;
826		}
827		}
828
#	Line 369 | Line 841 | public class JSR166TestCase extends Test
841		}
842
843		/**
844	<	* Calls threadFail with message "Unexpected exception" + ex.
844	>	* Records the given exception using {@link #threadRecordFailure},
845	>	* then rethrows the exception, wrapping it in an
846	>	* AssertionFailedError if necessary.
847		*/
848		public void threadUnexpectedException(Throwable t) {
849		threadRecordFailure(t);
850		t.printStackTrace();
377	–	// Rethrow, wrapping in an AssertionError if necessary
851		if (t instanceof RuntimeException)
852		throw (RuntimeException) t;
853		else if (t instanceof Error)
854		throw (Error) t;
855		else {
856	<	AssertionError ae = new AssertionError("unexpected exception: " + t);
857	<	t.initCause(t);
858	<	throw ae;
859	<	}
856	>	AssertionFailedError afe =
857	>	new AssertionFailedError("unexpected exception: " + t);
858	>	afe.initCause(t);
859	>	throw afe;
860	>	}
861	>	}
862	>
863	>	/**
864	>	* Delays, via Thread.sleep, for the given millisecond delay, but
865	>	* if the sleep is shorter than specified, may re-sleep or yield
866	>	* until time elapses.  Ensures that the given time, as measured
867	>	* by System.nanoTime(), has elapsed.
868	>	*/
869	>	static void delay(long millis) throws InterruptedException {
870	>	long nanos = millis * (1000 * 1000);
871	>	final long wakeupTime = System.nanoTime() + nanos;
872	>	do {
873	>	if (millis > 0L)
874	>	Thread.sleep(millis);
875	>	else // too short to sleep
876	>	Thread.yield();
877	>	nanos = wakeupTime - System.nanoTime();
878	>	millis = nanos / (1000 * 1000);
879	>	} while (nanos >= 0L);
880	>	}
881	>
882	>	/**
883	>	* Allows use of try-with-resources with per-test thread pools.
884	>	*/
885	>	class PoolCleaner implements AutoCloseable {
886	>	private final ExecutorService pool;
887	>	public PoolCleaner(ExecutorService pool) { this.pool = pool; }
888	>	public void close() { joinPool(pool); }
889	>	}
890	>
891	>	/**
892	>	* An extension of PoolCleaner that has an action to release the pool.
893	>	*/
894	>	class PoolCleanerWithReleaser extends PoolCleaner {
895	>	private final Runnable releaser;
896	>	public PoolCleanerWithReleaser(ExecutorService pool, Runnable releaser) {
897	>	super(pool);
898	>	this.releaser = releaser;
899	>	}
900	>	public void close() {
901	>	try {
902	>	releaser.run();
903	>	} finally {
904	>	super.close();
905	>	}
906	>	}
907	>	}
908	>
909	>	PoolCleaner cleaner(ExecutorService pool) {
910	>	return new PoolCleaner(pool);
911	>	}
912	>
913	>	PoolCleaner cleaner(ExecutorService pool, Runnable releaser) {
914	>	return new PoolCleanerWithReleaser(pool, releaser);
915	>	}
916	>
917	>	PoolCleaner cleaner(ExecutorService pool, CountDownLatch latch) {
918	>	return new PoolCleanerWithReleaser(pool, releaser(latch));
919	>	}
920	>
921	>	Runnable releaser(final CountDownLatch latch) {
922	>	return new Runnable() { public void run() {
923	>	do { latch.countDown(); }
924	>	while (latch.getCount() > 0);
925	>	}};
926	>	}
927	>
928	>	PoolCleaner cleaner(ExecutorService pool, AtomicBoolean flag) {
929	>	return new PoolCleanerWithReleaser(pool, releaser(flag));
930	>	}
931	>
932	>	Runnable releaser(final AtomicBoolean flag) {
933	>	return new Runnable() { public void run() { flag.set(true); }};
934		}
935
936		/**
937		* Waits out termination of a thread pool or fails doing so.
938		*/
939	<	public void joinPool(ExecutorService exec) {
939	>	void joinPool(ExecutorService pool) {
940		try {
941	<	exec.shutdown();
942	<	assertTrue(exec.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
941	>	pool.shutdown();
942	>	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)) {
943	>	try {
944	>	threadFail("ExecutorService " + pool +
945	>	" did not terminate in a timely manner");
946	>	} finally {
947	>	// last resort, for the benefit of subsequent tests
948	>	pool.shutdownNow();
949	>	pool.awaitTermination(MEDIUM_DELAY_MS, MILLISECONDS);
950	>	}
951	>	}
952		} catch (SecurityException ok) {
953		// Allowed in case test doesn't have privs
954	<	} catch (InterruptedException ie) {
955	<	fail("Unexpected InterruptedException");
954	>	} catch (InterruptedException fail) {
955	>	threadFail("Unexpected InterruptedException");
956	>	}
957	>	}
958	>
959	>	/**
960	>	* Like Runnable, but with the freedom to throw anything.
961	>	* junit folks had the same idea:
962	>	* http://junit.org/junit5/docs/snapshot/api/org/junit/gen5/api/Executable.html
963	>	*/
964	>	interface Action { public void run() throws Throwable; }
965	>
966	>	/**
967	>	* Runs all the given actions in parallel, failing if any fail.
968	>	* Useful for running multiple variants of tests that are
969	>	* necessarily individually slow because they must block.
970	>	*/
971	>	void testInParallel(Action ... actions) {
972	>	ExecutorService pool = Executors.newCachedThreadPool();
973	>	try (PoolCleaner cleaner = cleaner(pool)) {
974	>	ArrayList<Future<?>> futures = new ArrayList<>(actions.length);
975	>	for (final Action action : actions)
976	>	futures.add(pool.submit(new CheckedRunnable() {
977	>	public void realRun() throws Throwable { action.run();}}));
978	>	for (Future<?> future : futures)
979	>	try {
980	>	assertNull(future.get(LONG_DELAY_MS, MILLISECONDS));
981	>	} catch (ExecutionException ex) {
982	>	threadUnexpectedException(ex.getCause());
983	>	} catch (Exception ex) {
984	>	threadUnexpectedException(ex);
985	>	}
986	>	}
987	>	}
988	>
989	>	/**
990	>	* A debugging tool to print stack traces of most threads, as jstack does.
991	>	* Uninteresting threads are filtered out.
992	>	*/
993	>	static void dumpTestThreads() {
994	>	SecurityManager sm = System.getSecurityManager();
995	>	if (sm != null) {
996	>	try {
997	>	System.setSecurityManager(null);
998	>	} catch (SecurityException giveUp) {
999	>	return;
1000	>	}
1001	>	}
1002	>
1003	>	ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
1004	>	System.err.println("------ stacktrace dump start ------");
1005	>	for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) {
1006	>	String name = info.getThreadName();
1007	>	if ("Signal Dispatcher".equals(name))
1008	>	continue;
1009	>	if ("Reference Handler".equals(name)
1010	>	&& info.getLockName().startsWith("java.lang.ref.Reference$Lock"))
1011	>	continue;
1012	>	if ("Finalizer".equals(name)
1013	>	&& info.getLockName().startsWith("java.lang.ref.ReferenceQueue$Lock"))
1014	>	continue;
1015	>	if ("checkForWedgedTest".equals(name))
1016	>	continue;
1017	>	System.err.print(info);
1018	>	}
1019	>	System.err.println("------ stacktrace dump end ------");
1020	>
1021	>	if (sm != null) System.setSecurityManager(sm);
1022	>	}
1023	>
1024	>	/**
1025	>	* Checks that thread does not terminate within the default
1026	>	* millisecond delay of {@code timeoutMillis()}.
1027	>	*/
1028	>	void assertThreadStaysAlive(Thread thread) {
1029	>	assertThreadStaysAlive(thread, timeoutMillis());
1030	>	}
1031	>
1032	>	/**
1033	>	* Checks that thread does not terminate within the given millisecond delay.
1034	>	*/
1035	>	void assertThreadStaysAlive(Thread thread, long millis) {
1036	>	try {
1037	>	// No need to optimize the failing case via Thread.join.
1038	>	delay(millis);
1039	>	assertTrue(thread.isAlive());
1040	>	} catch (InterruptedException fail) {
1041	>	threadFail("Unexpected InterruptedException");
1042	>	}
1043	>	}
1044	>
1045	>	/**
1046	>	* Checks that the threads do not terminate within the default
1047	>	* millisecond delay of {@code timeoutMillis()}.
1048	>	*/
1049	>	void assertThreadsStayAlive(Thread... threads) {
1050	>	assertThreadsStayAlive(timeoutMillis(), threads);
1051	>	}
1052	>
1053	>	/**
1054	>	* Checks that the threads do not terminate within the given millisecond delay.
1055	>	*/
1056	>	void assertThreadsStayAlive(long millis, Thread... threads) {
1057	>	try {
1058	>	// No need to optimize the failing case via Thread.join.
1059	>	delay(millis);
1060	>	for (Thread thread : threads)
1061	>	assertTrue(thread.isAlive());
1062	>	} catch (InterruptedException fail) {
1063	>	threadFail("Unexpected InterruptedException");
1064		}
1065		}
1066
1067	+	/**
1068	+	* Checks that future.get times out, with the default timeout of
1069	+	* {@code timeoutMillis()}.
1070	+	*/
1071	+	void assertFutureTimesOut(Future future) {
1072	+	assertFutureTimesOut(future, timeoutMillis());
1073	+	}
1074	+
1075	+	/**
1076	+	* Checks that future.get times out, with the given millisecond timeout.
1077	+	*/
1078	+	void assertFutureTimesOut(Future future, long timeoutMillis) {
1079	+	long startTime = System.nanoTime();
1080	+	try {
1081	+	future.get(timeoutMillis, MILLISECONDS);
1082	+	shouldThrow();
1083	+	} catch (TimeoutException success) {
1084	+	} catch (Exception fail) {
1085	+	threadUnexpectedException(fail);
1086	+	} finally { future.cancel(true); }
1087	+	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
1088	+	}
1089
1090		/**
1091		* Fails with message "should throw exception".
#	Line 416 | Line 1102 | public class JSR166TestCase extends Test
1102		}
1103
1104		/**
419	–	* Fails with message "Unexpected exception: " + ex.
420	–	*/
421	–	public void unexpectedException(Throwable ex) {
422	–	ex.printStackTrace();
423	–	fail("Unexpected exception: " + ex);
424	–	}
425	–
426	–
427	–	/**
1105		* The number of elements to place in collections, arrays, etc.
1106		*/
1107		public static final int SIZE = 20;
#	Line 449 | Line 1126 | public class JSR166TestCase extends Test
1126		public static final Integer m6  = new Integer(-6);
1127		public static final Integer m10 = new Integer(-10);
1128
452	–
1129		/**
1130		* Runs Runnable r with a security policy that permits precisely
1131		* the specified permissions.  If there is no current security
#	Line 461 | Line 1137 | public class JSR166TestCase extends Test
1137		SecurityManager sm = System.getSecurityManager();
1138		if (sm == null) {
1139		r.run();
1140	+	}
1141	+	runWithSecurityManagerWithPermissions(r, permissions);
1142	+	}
1143	+
1144	+	/**
1145	+	* Runs Runnable r with a security policy that permits precisely
1146	+	* the specified permissions.  If there is no current security
1147	+	* manager, a temporary one is set for the duration of the
1148	+	* Runnable.  We require that any security manager permit
1149	+	* getPolicy/setPolicy.
1150	+	*/
1151	+	public void runWithSecurityManagerWithPermissions(Runnable r,
1152	+	Permission... permissions) {
1153	+	SecurityManager sm = System.getSecurityManager();
1154	+	if (sm == null) {
1155		Policy savedPolicy = Policy.getPolicy();
1156		try {
1157		Policy.setPolicy(permissivePolicy());
1158		System.setSecurityManager(new SecurityManager());
1159	<	runWithPermissions(r, permissions);
1159	>	runWithSecurityManagerWithPermissions(r, permissions);
1160		} finally {
1161		System.setSecurityManager(null);
1162		Policy.setPolicy(savedPolicy);
#	Line 513 | Line 1204 | public class JSR166TestCase extends Test
1204		return perms.implies(p);
1205		}
1206		public void refresh() {}
1207	+	public String toString() {
1208	+	List<Permission> ps = new ArrayList<Permission>();
1209	+	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
1210	+	ps.add(e.nextElement());
1211	+	return "AdjustablePolicy with permissions " + ps;
1212	+	}
1213		}
1214
1215		/**
#	Line 535 | Line 1232 | public class JSR166TestCase extends Test
1232		}
1233
1234		/**
1235	<	* Sleep until the timeout has elapsed, or interrupted.
1236	<	* Does <em>NOT</em> throw InterruptedException.
1235	>	* Sleeps until the given time has elapsed.
1236	>	* Throws AssertionFailedError if interrupted.
1237		*/
1238	<	void sleepTillInterrupted(long timeoutMillis) {
1238	>	void sleep(long millis) {
1239		try {
1240	<	Thread.sleep(timeoutMillis);
1241	<	} catch (InterruptedException wakeup) {}
1240	>	delay(millis);
1241	>	} catch (InterruptedException fail) {
1242	>	AssertionFailedError afe =
1243	>	new AssertionFailedError("Unexpected InterruptedException");
1244	>	afe.initCause(fail);
1245	>	throw afe;
1246	>	}
1247	>	}
1248	>
1249	>	/**
1250	>	* Spin-waits up to the specified number of milliseconds for the given
1251	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1252	>	*/
1253	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1254	>	long startTime = 0L;
1255	>	for (;;) {
1256	>	Thread.State s = thread.getState();
1257	>	if (s == Thread.State.BLOCKED ||
1258	>	s == Thread.State.WAITING ||
1259	>	s == Thread.State.TIMED_WAITING)
1260	>	return;
1261	>	else if (s == Thread.State.TERMINATED)
1262	>	fail("Unexpected thread termination");
1263	>	else if (startTime == 0L)
1264	>	startTime = System.nanoTime();
1265	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
1266	>	threadAssertTrue(thread.isAlive());
1267	>	return;
1268	>	}
1269	>	Thread.yield();
1270	>	}
1271		}
1272
1273		/**
1274	<	* Returns a new started Thread running the given runnable.
1274	>	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
1275	>	* state: BLOCKED, WAITING, or TIMED_WAITING.
1276	>	*/
1277	>	void waitForThreadToEnterWaitState(Thread thread) {
1278	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
1279	>	}
1280	>
1281	>	/**
1282	>	* Returns the number of milliseconds since time given by
1283	>	* startNanoTime, which must have been previously returned from a
1284	>	* call to {@link System#nanoTime()}.
1285	>	*/
1286	>	static long millisElapsedSince(long startNanoTime) {
1287	>	return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
1288	>	}
1289	>
1290	>	//     void assertTerminatesPromptly(long timeoutMillis, Runnable r) {
1291	>	//         long startTime = System.nanoTime();
1292	>	//         try {
1293	>	//             r.run();
1294	>	//         } catch (Throwable fail) { threadUnexpectedException(fail); }
1295	>	//         if (millisElapsedSince(startTime) > timeoutMillis/2)
1296	>	//             throw new AssertionFailedError("did not return promptly");
1297	>	//     }
1298	>
1299	>	//     void assertTerminatesPromptly(Runnable r) {
1300	>	//         assertTerminatesPromptly(LONG_DELAY_MS/2, r);
1301	>	//     }
1302	>
1303	>	/**
1304	>	* Checks that timed f.get() returns the expected value, and does not
1305	>	* wait for the timeout to elapse before returning.
1306	>	*/
1307	>	<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
1308	>	long startTime = System.nanoTime();
1309	>	try {
1310	>	assertEquals(expectedValue, f.get(timeoutMillis, MILLISECONDS));
1311	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
1312	>	if (millisElapsedSince(startTime) > timeoutMillis/2)
1313	>	throw new AssertionFailedError("timed get did not return promptly");
1314	>	}
1315	>
1316	>	<T> void checkTimedGet(Future<T> f, T expectedValue) {
1317	>	checkTimedGet(f, expectedValue, LONG_DELAY_MS);
1318	>	}
1319	>
1320	>	/**
1321	>	* Returns a new started daemon Thread running the given runnable.
1322		*/
1323		Thread newStartedThread(Runnable runnable) {
1324		Thread t = new Thread(runnable);
1325	+	t.setDaemon(true);
1326		t.start();
1327		return t;
1328		}
1329
1330	+	/**
1331	+	* Waits for the specified time (in milliseconds) for the thread
1332	+	* to terminate (using {@link Thread#join(long)}), else interrupts
1333	+	* the thread (in the hope that it may terminate later) and fails.
1334	+	*/
1335	+	void awaitTermination(Thread t, long timeoutMillis) {
1336	+	try {
1337	+	t.join(timeoutMillis);
1338	+	} catch (InterruptedException fail) {
1339	+	threadUnexpectedException(fail);
1340	+	} finally {
1341	+	if (t.getState() != Thread.State.TERMINATED) {
1342	+	t.interrupt();
1343	+	threadFail("timed out waiting for thread to terminate");
1344	+	}
1345	+	}
1346	+	}
1347	+
1348	+	/**
1349	+	* Waits for LONG_DELAY_MS milliseconds for the thread to
1350	+	* terminate (using {@link Thread#join(long)}), else interrupts
1351	+	* the thread (in the hope that it may terminate later) and fails.
1352	+	*/
1353	+	void awaitTermination(Thread t) {
1354	+	awaitTermination(t, LONG_DELAY_MS);
1355	+	}
1356	+
1357		// Some convenient Runnable classes
1358
1359		public abstract class CheckedRunnable implements Runnable {
#	Line 561 | Line 1362 | public class JSR166TestCase extends Test
1362		public final void run() {
1363		try {
1364		realRun();
1365	<	} catch (Throwable t) {
1366	<	threadUnexpectedException(t);
1365	>	} catch (Throwable fail) {
1366	>	threadUnexpectedException(fail);
1367		}
1368		}
1369		}
#	Line 615 | Line 1416 | public class JSR166TestCase extends Test
1416		realRun();
1417		threadShouldThrow("InterruptedException");
1418		} catch (InterruptedException success) {
1419	<	} catch (Throwable t) {
1420	<	threadUnexpectedException(t);
1419	>	threadAssertFalse(Thread.interrupted());
1420	>	} catch (Throwable fail) {
1421	>	threadUnexpectedException(fail);
1422		}
1423		}
1424		}
#	Line 627 | Line 1429 | public class JSR166TestCase extends Test
1429		public final T call() {
1430		try {
1431		return realCall();
1432	<	} catch (Throwable t) {
1433	<	threadUnexpectedException(t);
1432	>	} catch (Throwable fail) {
1433	>	threadUnexpectedException(fail);
1434		return null;
1435		}
1436		}
#	Line 644 | Line 1446 | public class JSR166TestCase extends Test
1446		threadShouldThrow("InterruptedException");
1447		return result;
1448		} catch (InterruptedException success) {
1449	<	} catch (Throwable t) {
1450	<	threadUnexpectedException(t);
1449	>	threadAssertFalse(Thread.interrupted());
1450	>	} catch (Throwable fail) {
1451	>	threadUnexpectedException(fail);
1452		}
1453		return null;
1454		}
#	Line 662 | Line 1465 | public class JSR166TestCase extends Test
1465		public static final String TEST_STRING = "a test string";
1466
1467		public static class StringTask implements Callable<String> {
1468	<	public String call() { return TEST_STRING; }
1468	>	final String value;
1469	>	public StringTask() { this(TEST_STRING); }
1470	>	public StringTask(String value) { this.value = value; }
1471	>	public String call() { return value; }
1472		}
1473
1474		public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
1475		return new CheckedCallable<String>() {
1476	<	public String realCall() {
1476	>	protected String realCall() {
1477		try {
1478		latch.await();
1479		} catch (InterruptedException quittingTime) {}
#	Line 675 | Line 1481 | public class JSR166TestCase extends Test
1481		}};
1482		}
1483
1484	+	public Runnable countDowner(final CountDownLatch latch) {
1485	+	return new CheckedRunnable() {
1486	+	public void realRun() throws InterruptedException {
1487	+	latch.countDown();
1488	+	}};
1489	+	}
1490	+
1491	+	class LatchAwaiter extends CheckedRunnable {
1492	+	static final int NEW = 0;
1493	+	static final int RUNNING = 1;
1494	+	static final int DONE = 2;
1495	+	final CountDownLatch latch;
1496	+	int state = NEW;
1497	+	LatchAwaiter(CountDownLatch latch) { this.latch = latch; }
1498	+	public void realRun() throws InterruptedException {
1499	+	state = 1;
1500	+	await(latch);
1501	+	state = 2;
1502	+	}
1503	+	}
1504	+
1505	+	public LatchAwaiter awaiter(CountDownLatch latch) {
1506	+	return new LatchAwaiter(latch);
1507	+	}
1508	+
1509	+	public void await(CountDownLatch latch, long timeoutMillis) {
1510	+	try {
1511	+	if (!latch.await(timeoutMillis, MILLISECONDS))
1512	+	fail("timed out waiting for CountDownLatch for "
1513	+	+ (timeoutMillis/1000) + " sec");
1514	+	} catch (Throwable fail) {
1515	+	threadUnexpectedException(fail);
1516	+	}
1517	+	}
1518	+
1519	+	public void await(CountDownLatch latch) {
1520	+	await(latch, LONG_DELAY_MS);
1521	+	}
1522	+
1523	+	public void await(Semaphore semaphore) {
1524	+	try {
1525	+	if (!semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS))
1526	+	fail("timed out waiting for Semaphore for "
1527	+	+ (LONG_DELAY_MS/1000) + " sec");
1528	+	} catch (Throwable fail) {
1529	+	threadUnexpectedException(fail);
1530	+	}
1531	+	}
1532	+
1533	+	//     /**
1534	+	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1535	+	//      */
1536	+	//     public void await(AtomicBoolean flag) {
1537	+	//         await(flag, LONG_DELAY_MS);
1538	+	//     }
1539	+
1540	+	//     /**
1541	+	//      * Spin-waits up to the specified timeout until flag becomes true.
1542	+	//      */
1543	+	//     public void await(AtomicBoolean flag, long timeoutMillis) {
1544	+	//         long startTime = System.nanoTime();
1545	+	//         while (!flag.get()) {
1546	+	//             if (millisElapsedSince(startTime) > timeoutMillis)
1547	+	//                 throw new AssertionFailedError("timed out");
1548	+	//             Thread.yield();
1549	+	//         }
1550	+	//     }
1551	+
1552		public static class NPETask implements Callable<String> {
1553		public String call() { throw new NullPointerException(); }
1554		}
#	Line 685 | Line 1559 | public class JSR166TestCase extends Test
1559
1560		public class ShortRunnable extends CheckedRunnable {
1561		protected void realRun() throws Throwable {
1562	<	Thread.sleep(SHORT_DELAY_MS);
1562	>	delay(SHORT_DELAY_MS);
1563		}
1564		}
1565
1566		public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1567		protected void realRun() throws InterruptedException {
1568	<	Thread.sleep(SHORT_DELAY_MS);
1568	>	delay(SHORT_DELAY_MS);
1569		}
1570		}
1571
1572		public class SmallRunnable extends CheckedRunnable {
1573		protected void realRun() throws Throwable {
1574	<	Thread.sleep(SMALL_DELAY_MS);
1574	>	delay(SMALL_DELAY_MS);
1575		}
1576		}
1577
1578		public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1579		protected void realRun() {
1580		try {
1581	<	Thread.sleep(SMALL_DELAY_MS);
1581	>	delay(SMALL_DELAY_MS);
1582		} catch (InterruptedException ok) {}
1583		}
1584		}
1585
1586		public class SmallCallable extends CheckedCallable {
1587		protected Object realCall() throws InterruptedException {
1588	<	Thread.sleep(SMALL_DELAY_MS);
1588	>	delay(SMALL_DELAY_MS);
1589		return Boolean.TRUE;
1590		}
1591		}
1592
719	–	public class SmallInterruptedRunnable extends CheckedInterruptedRunnable {
720	–	protected void realRun() throws InterruptedException {
721	–	Thread.sleep(SMALL_DELAY_MS);
722	–	}
723	–	}
724	–
1593		public class MediumRunnable extends CheckedRunnable {
1594		protected void realRun() throws Throwable {
1595	<	Thread.sleep(MEDIUM_DELAY_MS);
1595	>	delay(MEDIUM_DELAY_MS);
1596		}
1597		}
1598
1599		public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1600		protected void realRun() throws InterruptedException {
1601	<	Thread.sleep(MEDIUM_DELAY_MS);
1601	>	delay(MEDIUM_DELAY_MS);
1602		}
1603		}
1604
1605	+	public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1606	+	return new CheckedRunnable() {
1607	+	protected void realRun() {
1608	+	try {
1609	+	delay(timeoutMillis);
1610	+	} catch (InterruptedException ok) {}
1611	+	}};
1612	+	}
1613	+
1614		public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1615		protected void realRun() {
1616		try {
1617	<	Thread.sleep(MEDIUM_DELAY_MS);
1617	>	delay(MEDIUM_DELAY_MS);
1618		} catch (InterruptedException ok) {}
1619		}
1620		}
#	Line 745 | Line 1622 | public class JSR166TestCase extends Test
1622		public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1623		protected void realRun() {
1624		try {
1625	<	Thread.sleep(LONG_DELAY_MS);
1625	>	delay(LONG_DELAY_MS);
1626		} catch (InterruptedException ok) {}
1627		}
1628		}
#	Line 759 | Line 1636 | public class JSR166TestCase extends Test
1636		}
1637		}
1638
1639	+	public interface TrackedRunnable extends Runnable {
1640	+	boolean isDone();
1641	+	}
1642	+
1643	+	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1644	+	return new TrackedRunnable() {
1645	+	private volatile boolean done = false;
1646	+	public boolean isDone() { return done; }
1647	+	public void run() {
1648	+	try {
1649	+	delay(timeoutMillis);
1650	+	done = true;
1651	+	} catch (InterruptedException ok) {}
1652	+	}
1653	+	};
1654	+	}
1655	+
1656		public static class TrackedShortRunnable implements Runnable {
1657		public volatile boolean done = false;
1658		public void run() {
1659		try {
1660	<	Thread.sleep(SMALL_DELAY_MS);
1660	>	delay(SHORT_DELAY_MS);
1661	>	done = true;
1662	>	} catch (InterruptedException ok) {}
1663	>	}
1664	>	}
1665	>
1666	>	public static class TrackedSmallRunnable implements Runnable {
1667	>	public volatile boolean done = false;
1668	>	public void run() {
1669	>	try {
1670	>	delay(SMALL_DELAY_MS);
1671		done = true;
1672		} catch (InterruptedException ok) {}
1673		}
#	Line 773 | Line 1677 | public class JSR166TestCase extends Test
1677		public volatile boolean done = false;
1678		public void run() {
1679		try {
1680	<	Thread.sleep(MEDIUM_DELAY_MS);
1680	>	delay(MEDIUM_DELAY_MS);
1681		done = true;
1682		} catch (InterruptedException ok) {}
1683		}
#	Line 783 | Line 1687 | public class JSR166TestCase extends Test
1687		public volatile boolean done = false;
1688		public void run() {
1689		try {
1690	<	Thread.sleep(LONG_DELAY_MS);
1690	>	delay(LONG_DELAY_MS);
1691		done = true;
1692		} catch (InterruptedException ok) {}
1693		}
#	Line 800 | Line 1704 | public class JSR166TestCase extends Test
1704		public volatile boolean done = false;
1705		public Object call() {
1706		try {
1707	<	Thread.sleep(SMALL_DELAY_MS);
1707	>	delay(SMALL_DELAY_MS);
1708		done = true;
1709		} catch (InterruptedException ok) {}
1710		return Boolean.TRUE;
#	Line 813 | Line 1717 | public class JSR166TestCase extends Test
1717		public abstract class CheckedRecursiveAction extends RecursiveAction {
1718		protected abstract void realCompute() throws Throwable;
1719
1720	<	public final void compute() {
1720	>	@Override protected final void compute() {
1721		try {
1722		realCompute();
1723	<	} catch (Throwable t) {
1724	<	threadUnexpectedException(t);
1723	>	} catch (Throwable fail) {
1724	>	threadUnexpectedException(fail);
1725		}
1726		}
1727		}
#	Line 828 | Line 1732 | public class JSR166TestCase extends Test
1732		public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1733		protected abstract T realCompute() throws Throwable;
1734
1735	<	public final T compute() {
1735	>	@Override protected final T compute() {
1736		try {
1737		return realCompute();
1738	<	} catch (Throwable t) {
1739	<	threadUnexpectedException(t);
1738	>	} catch (Throwable fail) {
1739	>	threadUnexpectedException(fail);
1740		return null;
1741		}
1742		}
#	Line 846 | Line 1750 | public class JSR166TestCase extends Test
1750		ThreadPoolExecutor executor) {}
1751		}
1752
1753	+	/**
1754	+	* A CyclicBarrier that uses timed await and fails with
1755	+	* AssertionFailedErrors instead of throwing checked exceptions.
1756	+	*/
1757	+	public class CheckedBarrier extends CyclicBarrier {
1758	+	public CheckedBarrier(int parties) { super(parties); }
1759	+
1760	+	public int await() {
1761	+	try {
1762	+	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1763	+	} catch (TimeoutException timedOut) {
1764	+	throw new AssertionFailedError("timed out");
1765	+	} catch (Exception fail) {
1766	+	AssertionFailedError afe =
1767	+	new AssertionFailedError("Unexpected exception: " + fail);
1768	+	afe.initCause(fail);
1769	+	throw afe;
1770	+	}
1771	+	}
1772	+	}
1773	+
1774	+	void checkEmpty(BlockingQueue q) {
1775	+	try {
1776	+	assertTrue(q.isEmpty());
1777	+	assertEquals(0, q.size());
1778	+	assertNull(q.peek());
1779	+	assertNull(q.poll());
1780	+	assertNull(q.poll(0, MILLISECONDS));
1781	+	assertEquals(q.toString(), "[]");
1782	+	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1783	+	assertFalse(q.iterator().hasNext());
1784	+	try {
1785	+	q.element();
1786	+	shouldThrow();
1787	+	} catch (NoSuchElementException success) {}
1788	+	try {
1789	+	q.iterator().next();
1790	+	shouldThrow();
1791	+	} catch (NoSuchElementException success) {}
1792	+	try {
1793	+	q.remove();
1794	+	shouldThrow();
1795	+	} catch (NoSuchElementException success) {}
1796	+	} catch (InterruptedException fail) { threadUnexpectedException(fail); }
1797	+	}
1798	+
1799	+	void assertSerialEquals(Object x, Object y) {
1800	+	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1801	+	}
1802	+
1803	+	void assertNotSerialEquals(Object x, Object y) {
1804	+	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1805	+	}
1806	+
1807	+	byte[] serialBytes(Object o) {
1808	+	try {
1809	+	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1810	+	ObjectOutputStream oos = new ObjectOutputStream(bos);
1811	+	oos.writeObject(o);
1812	+	oos.flush();
1813	+	oos.close();
1814	+	return bos.toByteArray();
1815	+	} catch (Throwable fail) {
1816	+	threadUnexpectedException(fail);
1817	+	return new byte[0];
1818	+	}
1819	+	}
1820	+
1821	+	@SuppressWarnings("unchecked")
1822	+	<T> T serialClone(T o) {
1823	+	try {
1824	+	ObjectInputStream ois = new ObjectInputStream
1825	+	(new ByteArrayInputStream(serialBytes(o)));
1826	+	T clone = (T) ois.readObject();
1827	+	assertSame(o.getClass(), clone.getClass());
1828	+	return clone;
1829	+	} catch (Throwable fail) {
1830	+	threadUnexpectedException(fail);
1831	+	return null;
1832	+	}
1833	+	}
1834	+
1835	+	public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1836	+	Runnable... throwingActions) {
1837	+	for (Runnable throwingAction : throwingActions) {
1838	+	boolean threw = false;
1839	+	try { throwingAction.run(); }
1840	+	catch (Throwable t) {
1841	+	threw = true;
1842	+	if (!expectedExceptionClass.isInstance(t)) {
1843	+	AssertionFailedError afe =
1844	+	new AssertionFailedError
1845	+	("Expected " + expectedExceptionClass.getName() +
1846	+	", got " + t.getClass().getName());
1847	+	afe.initCause(t);
1848	+	threadUnexpectedException(afe);
1849	+	}
1850	+	}
1851	+	if (!threw)
1852	+	shouldThrow(expectedExceptionClass.getName());
1853	+	}
1854	+	}
1855	+
1856	+	public void assertIteratorExhausted(Iterator<?> it) {
1857	+	try {
1858	+	it.next();
1859	+	shouldThrow();
1860	+	} catch (NoSuchElementException success) {}
1861	+	assertFalse(it.hasNext());
1862	+	}
1863	+
1864	+	public <T> Callable<T> callableThrowing(final Exception ex) {
1865	+	return new Callable<T>() { public T call() throws Exception { throw ex; }};
1866	+	}
1867	+
1868	+	public Runnable runnableThrowing(final RuntimeException ex) {
1869	+	return new Runnable() { public void run() { throw ex; }};
1870	+	}
1871	+
1872	+	/** A reusable thread pool to be shared by tests. */
1873	+	static final ExecutorService cachedThreadPool =
1874	+	new ThreadPoolExecutor(0, Integer.MAX_VALUE,
1875	+	1000L, MILLISECONDS,
1876	+	new SynchronousQueue<Runnable>());
1877	+
1878		}

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