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Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.52 by jsr166, Mon Sep 13 23:19:31 2010 UTC vs.
Revision 1.197 by jsr166, Wed Jun 22 14:40:36 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.*;
11	<	import java.util.concurrent.*;
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	>	*/
17	>
18		import static java.util.concurrent.TimeUnit.MILLISECONDS;
19	<	import java.io.*;
20	<	import java.security.*;
19	>	import static java.util.concurrent.TimeUnit.MINUTES;
20	>	import static java.util.concurrent.TimeUnit.NANOSECONDS;
21	>
22	>	import java.io.ByteArrayInputStream;
23	>	import java.io.ByteArrayOutputStream;
24	>	import java.io.ObjectInputStream;
25	>	import java.io.ObjectOutputStream;
26	>	import java.lang.management.ManagementFactory;
27	>	import java.lang.management.ThreadInfo;
28	>	import java.lang.management.ThreadMXBean;
29	>	import java.lang.reflect.Constructor;
30	>	import java.lang.reflect.Method;
31	>	import java.lang.reflect.Modifier;
32	>	import java.nio.file.Files;
33	>	import java.nio.file.Paths;
34	>	import java.security.CodeSource;
35	>	import java.security.Permission;
36	>	import java.security.PermissionCollection;
37	>	import java.security.Permissions;
38	>	import java.security.Policy;
39	>	import java.security.ProtectionDomain;
40	>	import java.security.SecurityPermission;
41	>	import java.util.ArrayList;
42	>	import java.util.Arrays;
43	>	import java.util.Date;
44	>	import java.util.Enumeration;
45	>	import java.util.Iterator;
46	>	import java.util.List;
47	>	import java.util.NoSuchElementException;
48	>	import java.util.PropertyPermission;
49	>	import java.util.concurrent.BlockingQueue;
50	>	import java.util.concurrent.Callable;
51	>	import java.util.concurrent.CountDownLatch;
52	>	import java.util.concurrent.CyclicBarrier;
53	>	import java.util.concurrent.ExecutionException;
54	>	import java.util.concurrent.Executors;
55	>	import java.util.concurrent.ExecutorService;
56	>	import java.util.concurrent.ForkJoinPool;
57	>	import java.util.concurrent.Future;
58	>	import java.util.concurrent.RecursiveAction;
59	>	import java.util.concurrent.RecursiveTask;
60	>	import java.util.concurrent.RejectedExecutionHandler;
61	>	import java.util.concurrent.Semaphore;
62	>	import java.util.concurrent.SynchronousQueue;
63	>	import java.util.concurrent.ThreadFactory;
64	>	import java.util.concurrent.ThreadPoolExecutor;
65	>	import java.util.concurrent.TimeoutException;
66	>	import java.util.concurrent.atomic.AtomicBoolean;
67	>	import java.util.concurrent.atomic.AtomicReference;
68	>	import java.util.regex.Matcher;
69	>	import java.util.regex.Pattern;
70	>
71	>	import junit.framework.AssertionFailedError;
72	>	import junit.framework.Test;
73	>	import junit.framework.TestCase;
74	>	import junit.framework.TestResult;
75	>	import junit.framework.TestSuite;
76
77		/**
78		* Base class for JSR166 Junit TCK tests.  Defines some constants,
#	Line 23 | Line 84 | import java.security.*;
84		*
85		* <ol>
86		*
87	<	* <li> All assertions in code running in generated threads must use
87	>	* <li>All assertions in code running in generated threads must use
88		* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link
89		* #threadAssertEquals}, or {@link #threadAssertNull}, (not
90		* {@code fail}, {@code assertTrue}, etc.) It is OK (but not
91		* particularly recommended) for other code to use these forms too.
92		* Only the most typically used JUnit assertion methods are defined
93	<	* this way, but enough to live with.</li>
93	>	* this way, but enough to live with.
94		*
95	<	* <li> If you override {@link #setUp} or {@link #tearDown}, make sure
95	>	* <li>If you override {@link #setUp} or {@link #tearDown}, make sure
96		* to invoke {@code super.setUp} and {@code super.tearDown} within
97		* them. These methods are used to clear and check for thread
98	<	* assertion failures.</li>
98	>	* assertion failures.
99		*
100		* <li>All delays and timeouts must use one of the constants {@code
101		* SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS},
#	Line 45 | Line 106 | import java.security.*;
106		* is always discriminable as larger than SHORT and smaller than
107		* MEDIUM.  And so on. These constants are set to conservative values,
108		* but even so, if there is ever any doubt, they can all be increased
109	<	* in one spot to rerun tests on slower platforms.</li>
109	>	* in one spot to rerun tests on slower platforms.
110		*
111	<	* <li> All threads generated must be joined inside each test case
111	>	* <li>All threads generated must be joined inside each test case
112		* method (or {@code fail} to do so) before returning from the
113		* method. The {@code joinPool} method can be used to do this when
114	<	* using Executors.</li>
114	>	* using Executors.
115		*
116		* </ol>
117		*
118	<	* <p> <b>Other notes</b>
118	>	* <p><b>Other notes</b>
119		* <ul>
120		*
121	<	* <li> Usually, there is one testcase method per JSR166 method
121	>	* <li>Usually, there is one testcase method per JSR166 method
122		* covering "normal" operation, and then as many exception-testing
123		* methods as there are exceptions the method can throw. Sometimes
124		* there are multiple tests per JSR166 method when the different
125		* "normal" behaviors differ significantly. And sometimes testcases
126	<	* cover multiple methods when they cannot be tested in
66	<	* isolation.</li>
126	>	* cover multiple methods when they cannot be tested in isolation.
127		*
128	<	* <li> The documentation style for testcases is to provide as javadoc
128	>	* <li>The documentation style for testcases is to provide as javadoc
129		* a simple sentence or two describing the property that the testcase
130		* method purports to test. The javadocs do not say anything about how
131	<	* the property is tested. To find out, read the code.</li>
131	>	* the property is tested. To find out, read the code.
132		*
133	<	* <li> These tests are "conformance tests", and do not attempt to
133	>	* <li>These tests are "conformance tests", and do not attempt to
134		* test throughput, latency, scalability or other performance factors
135		* (see the separate "jtreg" tests for a set intended to check these
136		* for the most central aspects of functionality.) So, most tests use
137		* the smallest sensible numbers of threads, collection sizes, etc
138	<	* needed to check basic conformance.</li>
138	>	* needed to check basic conformance.
139		*
140		* <li>The test classes currently do not declare inclusion in
141		* any particular package to simplify things for people integrating
142	<	* them in TCK test suites.</li>
142	>	* them in TCK test suites.
143		*
144	<	* <li> As a convenience, the {@code main} of this class (JSR166TestCase)
145	<	* runs all JSR166 unit tests.</li>
144	>	* <li>As a convenience, the {@code main} of this class (JSR166TestCase)
145	>	* runs all JSR166 unit tests.
146		*
147		* </ul>
148		*/
#	Line 90 | Line 150 | public class JSR166TestCase extends Test
150		private static final boolean useSecurityManager =
151		Boolean.getBoolean("jsr166.useSecurityManager");
152
153	+	protected static final boolean expensiveTests =
154	+	Boolean.getBoolean("jsr166.expensiveTests");
155	+
156	+	/**
157	+	* If true, also run tests that are not part of the official tck
158	+	* because they test unspecified implementation details.
159	+	*/
160	+	protected static final boolean testImplementationDetails =
161	+	Boolean.getBoolean("jsr166.testImplementationDetails");
162	+
163	+	/**
164	+	* If true, report on stdout all "slow" tests, that is, ones that
165	+	* take more than profileThreshold milliseconds to execute.
166	+	*/
167	+	private static final boolean profileTests =
168	+	Boolean.getBoolean("jsr166.profileTests");
169	+
170		/**
171	<	* Runs all JSR166 unit tests using junit.textui.TestRunner
171	>	* The number of milliseconds that tests are permitted for
172	>	* execution without being reported, when profileTests is set.
173	>	*/
174	>	private static final long profileThreshold =
175	>	Long.getLong("jsr166.profileThreshold", 100);
176	>
177	>	/**
178	>	* The number of repetitions per test (for tickling rare bugs).
179	>	*/
180	>	private static final int runsPerTest =
181	>	Integer.getInteger("jsr166.runsPerTest", 1);
182	>
183	>	/**
184	>	* The number of repetitions of the test suite (for finding leaks?).
185	>	*/
186	>	private static final int suiteRuns =
187	>	Integer.getInteger("jsr166.suiteRuns", 1);
188	>
189	>	/**
190	>	* Returns the value of the system property, or NaN if not defined.
191	>	*/
192	>	private static float systemPropertyValue(String name) {
193	>	String floatString = System.getProperty(name);
194	>	if (floatString == null)
195	>	return Float.NaN;
196	>	try {
197	>	return Float.parseFloat(floatString);
198	>	} catch (NumberFormatException ex) {
199	>	throw new IllegalArgumentException(
200	>	String.format("Bad float value in system property %s=%s",
201	>	name, floatString));
202	>	}
203	>	}
204	>
205	>	/**
206	>	* The scaling factor to apply to standard delays used in tests.
207	>	* May be initialized from any of:
208	>	* - the "jsr166.delay.factor" system property
209	>	* - the "test.timeout.factor" system property (as used by jtreg)
210	>	*   See: http://openjdk.java.net/jtreg/tag-spec.html
211	>	* - hard-coded fuzz factor when using a known slowpoke VM
212	>	*/
213	>	private static final float delayFactor = delayFactor();
214	>
215	>	private static float delayFactor() {
216	>	float x;
217	>	if (!Float.isNaN(x = systemPropertyValue("jsr166.delay.factor")))
218	>	return x;
219	>	if (!Float.isNaN(x = systemPropertyValue("test.timeout.factor")))
220	>	return x;
221	>	String prop = System.getProperty("java.vm.version");
222	>	if (prop != null && prop.matches(".*debug.*"))
223	>	return 4.0f; // How much slower is fastdebug than product?!
224	>	return 1.0f;
225	>	}
226	>
227	>	public JSR166TestCase() { super(); }
228	>	public JSR166TestCase(String name) { super(name); }
229	>
230	>	/**
231	>	* A filter for tests to run, matching strings of the form
232	>	* methodName(className), e.g. "testInvokeAll5(ForkJoinPoolTest)"
233	>	* Usefully combined with jsr166.runsPerTest.
234	>	*/
235	>	private static final Pattern methodFilter = methodFilter();
236	>
237	>	private static Pattern methodFilter() {
238	>	String regex = System.getProperty("jsr166.methodFilter");
239	>	return (regex == null) ? null : Pattern.compile(regex);
240	>	}
241	>
242	>	// Instrumentation to debug very rare, but very annoying hung test runs.
243	>	static volatile TestCase currentTestCase;
244	>	// static volatile int currentRun = 0;
245	>	static {
246	>	Runnable checkForWedgedTest = new Runnable() { public void run() {
247	>	// Avoid spurious reports with enormous runsPerTest.
248	>	// A single test case run should never take more than 1 second.
249	>	// But let's cap it at the high end too ...
250	>	final int timeoutMinutes =
251	>	Math.min(15, Math.max(runsPerTest / 60, 1));
252	>	for (TestCase lastTestCase = currentTestCase;;) {
253	>	try { MINUTES.sleep(timeoutMinutes); }
254	>	catch (InterruptedException unexpected) { break; }
255	>	if (lastTestCase == currentTestCase) {
256	>	System.err.printf(
257	>	"Looks like we're stuck running test: %s%n",
258	>	lastTestCase);
259	>	//                     System.err.printf(
260	>	//                         "Looks like we're stuck running test: %s (%d/%d)%n",
261	>	//                         lastTestCase, currentRun, runsPerTest);
262	>	//                     System.err.println("availableProcessors=" +
263	>	//                         Runtime.getRuntime().availableProcessors());
264	>	//                     System.err.printf("cpu model = %s%n", cpuModel());
265	>	dumpTestThreads();
266	>	// one stack dump is probably enough; more would be spam
267	>	break;
268	>	}
269	>	lastTestCase = currentTestCase;
270	>	}}};
271	>	Thread thread = new Thread(checkForWedgedTest, "checkForWedgedTest");
272	>	thread.setDaemon(true);
273	>	thread.start();
274	>	}
275	>
276	>	//     public static String cpuModel() {
277	>	//         try {
278	>	//             Matcher matcher = Pattern.compile("model name\\s*: (.*)")
279	>	//                 .matcher(new String(
280	>	//                      Files.readAllBytes(Paths.get("/proc/cpuinfo")), "UTF-8"));
281	>	//             matcher.find();
282	>	//             return matcher.group(1);
283	>	//         } catch (Exception ex) { return null; }
284	>	//     }
285	>
286	>	public void runBare() throws Throwable {
287	>	currentTestCase = this;
288	>	if (methodFilter == null
289	>	|| methodFilter.matcher(toString()).find())
290	>	super.runBare();
291	>	}
292	>
293	>	protected void runTest() throws Throwable {
294	>	for (int i = 0; i < runsPerTest; i++) {
295	>	// currentRun = i;
296	>	if (profileTests)
297	>	runTestProfiled();
298	>	else
299	>	super.runTest();
300	>	}
301	>	}
302	>
303	>	protected void runTestProfiled() throws Throwable {
304	>	for (int i = 0; i < 2; i++) {
305	>	long startTime = System.nanoTime();
306	>	super.runTest();
307	>	long elapsedMillis = millisElapsedSince(startTime);
308	>	if (elapsedMillis < profileThreshold)
309	>	break;
310	>	// Never report first run of any test; treat it as a
311	>	// warmup run, notably to trigger all needed classloading,
312	>	if (i > 0)
313	>	System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
314	>	}
315	>	}
316	>
317	>	/**
318	>	* Runs all JSR166 unit tests using junit.textui.TestRunner.
319		*/
320		public static void main(String[] args) {
321	+	main(suite(), args);
322	+	}
323	+
324	+	static class PithyResultPrinter extends junit.textui.ResultPrinter {
325	+	PithyResultPrinter(java.io.PrintStream writer) { super(writer); }
326	+	long runTime;
327	+	public void startTest(Test test) {}
328	+	protected void printHeader(long runTime) {
329	+	this.runTime = runTime; // defer printing for later
330	+	}
331	+	protected void printFooter(TestResult result) {
332	+	if (result.wasSuccessful()) {
333	+	getWriter().println("OK (" + result.runCount() + " tests)"
334	+	+ "  Time: " + elapsedTimeAsString(runTime));
335	+	} else {
336	+	getWriter().println("Time: " + elapsedTimeAsString(runTime));
337	+	super.printFooter(result);
338	+	}
339	+	}
340	+	}
341	+
342	+	/**
343	+	* Returns a TestRunner that doesn't bother with unnecessary
344	+	* fluff, like printing a "." for each test case.
345	+	*/
346	+	static junit.textui.TestRunner newPithyTestRunner() {
347	+	junit.textui.TestRunner runner = new junit.textui.TestRunner();
348	+	runner.setPrinter(new PithyResultPrinter(System.out));
349	+	return runner;
350	+	}
351	+
352	+	/**
353	+	* Runs all unit tests in the given test suite.
354	+	* Actual behavior influenced by jsr166.* system properties.
355	+	*/
356	+	static void main(Test suite, String[] args) {
357		if (useSecurityManager) {
358		System.err.println("Setting a permissive security manager");
359		Policy.setPolicy(permissivePolicy());
360		System.setSecurityManager(new SecurityManager());
361		}
362	<	int iters = 1;
363	<	if (args.length > 0)
364	<	iters = Integer.parseInt(args[0]);
365	<	Test s = suite();
106	<	for (int i = 0; i < iters; ++i) {
107	<	junit.textui.TestRunner.run(s);
362	>	for (int i = 0; i < suiteRuns; i++) {
363	>	TestResult result = newPithyTestRunner().doRun(suite);
364	>	if (!result.wasSuccessful())
365	>	System.exit(1);
366		System.gc();
367		System.runFinalization();
368		}
369	<	System.exit(0);
369	>	}
370	>
371	>	public static TestSuite newTestSuite(Object... suiteOrClasses) {
372	>	TestSuite suite = new TestSuite();
373	>	for (Object suiteOrClass : suiteOrClasses) {
374	>	if (suiteOrClass instanceof TestSuite)
375	>	suite.addTest((TestSuite) suiteOrClass);
376	>	else if (suiteOrClass instanceof Class)
377	>	suite.addTest(new TestSuite((Class<?>) suiteOrClass));
378	>	else
379	>	throw new ClassCastException("not a test suite or class");
380	>	}
381	>	return suite;
382	>	}
383	>
384	>	public static void addNamedTestClasses(TestSuite suite,
385	>	String... testClassNames) {
386	>	for (String testClassName : testClassNames) {
387	>	try {
388	>	Class<?> testClass = Class.forName(testClassName);
389	>	Method m = testClass.getDeclaredMethod("suite",
390	>	new Class<?>[0]);
391	>	suite.addTest(newTestSuite((Test)m.invoke(null)));
392	>	} catch (Exception e) {
393	>	throw new Error("Missing test class", e);
394	>	}
395	>	}
396	>	}
397	>
398	>	public static final double JAVA_CLASS_VERSION;
399	>	public static final String JAVA_SPECIFICATION_VERSION;
400	>	static {
401	>	try {
402	>	JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
403	>	new java.security.PrivilegedAction<Double>() {
404	>	public Double run() {
405	>	return Double.valueOf(System.getProperty("java.class.version"));}});
406	>	JAVA_SPECIFICATION_VERSION = java.security.AccessController.doPrivileged(
407	>	new java.security.PrivilegedAction<String>() {
408	>	public String run() {
409	>	return System.getProperty("java.specification.version");}});
410	>	} catch (Throwable t) {
411	>	throw new Error(t);
412	>	}
413	>	}
414	>
415	>	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
416	>	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
417	>	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
418	>	public static boolean atLeastJava9() {
419	>	return JAVA_CLASS_VERSION >= 53.0
420	>	// As of 2015-09, java9 still uses 52.0 class file version
421	>	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?(9|[0-9][0-9])$");
422	>	}
423	>	public static boolean atLeastJava10() {
424	>	return JAVA_CLASS_VERSION >= 54.0
425	>	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?[0-9][0-9]$");
426		}
427
428		/**
429	<	* Collects all JSR166 unit tests as one suite
429	>	* Collects all JSR166 unit tests as one suite.
430		*/
431		public static Test suite() {
432	<	TestSuite suite = new TestSuite("JSR166 Unit Tests");
433	<
434	<	suite.addTest(new TestSuite(ForkJoinPoolTest.class));
435	<	suite.addTest(new TestSuite(ForkJoinTaskTest.class));
436	<	suite.addTest(new TestSuite(RecursiveActionTest.class));
437	<	suite.addTest(new TestSuite(RecursiveTaskTest.class));
438	<	suite.addTest(new TestSuite(LinkedTransferQueueTest.class));
439	<	suite.addTest(new TestSuite(PhaserTest.class));
440	<	suite.addTest(new TestSuite(ThreadLocalRandomTest.class));
441	<	suite.addTest(new TestSuite(AbstractExecutorServiceTest.class));
442	<	suite.addTest(new TestSuite(AbstractQueueTest.class));
443	<	suite.addTest(new TestSuite(AbstractQueuedSynchronizerTest.class));
444	<	suite.addTest(new TestSuite(AbstractQueuedLongSynchronizerTest.class));
445	<	suite.addTest(new TestSuite(ArrayBlockingQueueTest.class));
446	<	suite.addTest(new TestSuite(ArrayDequeTest.class));
447	<	suite.addTest(new TestSuite(AtomicBooleanTest.class));
448	<	suite.addTest(new TestSuite(AtomicIntegerArrayTest.class));
449	<	suite.addTest(new TestSuite(AtomicIntegerFieldUpdaterTest.class));
450	<	suite.addTest(new TestSuite(AtomicIntegerTest.class));
451	<	suite.addTest(new TestSuite(AtomicLongArrayTest.class));
452	<	suite.addTest(new TestSuite(AtomicLongFieldUpdaterTest.class));
453	<	suite.addTest(new TestSuite(AtomicLongTest.class));
454	<	suite.addTest(new TestSuite(AtomicMarkableReferenceTest.class));
455	<	suite.addTest(new TestSuite(AtomicReferenceArrayTest.class));
456	<	suite.addTest(new TestSuite(AtomicReferenceFieldUpdaterTest.class));
457	<	suite.addTest(new TestSuite(AtomicReferenceTest.class));
458	<	suite.addTest(new TestSuite(AtomicStampedReferenceTest.class));
459	<	suite.addTest(new TestSuite(ConcurrentHashMapTest.class));
460	<	suite.addTest(new TestSuite(ConcurrentLinkedDequeTest.class));
461	<	suite.addTest(new TestSuite(ConcurrentLinkedQueueTest.class));
462	<	suite.addTest(new TestSuite(ConcurrentSkipListMapTest.class));
463	<	suite.addTest(new TestSuite(ConcurrentSkipListSubMapTest.class));
464	<	suite.addTest(new TestSuite(ConcurrentSkipListSetTest.class));
465	<	suite.addTest(new TestSuite(ConcurrentSkipListSubSetTest.class));
466	<	suite.addTest(new TestSuite(CopyOnWriteArrayListTest.class));
467	<	suite.addTest(new TestSuite(CopyOnWriteArraySetTest.class));
468	<	suite.addTest(new TestSuite(CountDownLatchTest.class));
469	<	suite.addTest(new TestSuite(CyclicBarrierTest.class));
470	<	suite.addTest(new TestSuite(DelayQueueTest.class));
471	<	suite.addTest(new TestSuite(EntryTest.class));
472	<	suite.addTest(new TestSuite(ExchangerTest.class));
473	<	suite.addTest(new TestSuite(ExecutorsTest.class));
474	<	suite.addTest(new TestSuite(ExecutorCompletionServiceTest.class));
475	<	suite.addTest(new TestSuite(FutureTaskTest.class));
476	<	suite.addTest(new TestSuite(LinkedBlockingDequeTest.class));
477	<	suite.addTest(new TestSuite(LinkedBlockingQueueTest.class));
478	<	suite.addTest(new TestSuite(LinkedListTest.class));
479	<	suite.addTest(new TestSuite(LockSupportTest.class));
480	<	suite.addTest(new TestSuite(PriorityBlockingQueueTest.class));
481	<	suite.addTest(new TestSuite(PriorityQueueTest.class));
482	<	suite.addTest(new TestSuite(ReentrantLockTest.class));
483	<	suite.addTest(new TestSuite(ReentrantReadWriteLockTest.class));
484	<	suite.addTest(new TestSuite(ScheduledExecutorTest.class));
485	<	suite.addTest(new TestSuite(ScheduledExecutorSubclassTest.class));
486	<	suite.addTest(new TestSuite(SemaphoreTest.class));
487	<	suite.addTest(new TestSuite(SynchronousQueueTest.class));
488	<	suite.addTest(new TestSuite(SystemTest.class));
489	<	suite.addTest(new TestSuite(ThreadLocalTest.class));
490	<	suite.addTest(new TestSuite(ThreadPoolExecutorTest.class));
491	<	suite.addTest(new TestSuite(ThreadPoolExecutorSubclassTest.class));
492	<	suite.addTest(new TestSuite(ThreadTest.class));
493	<	suite.addTest(new TestSuite(TimeUnitTest.class));
494	<	suite.addTest(new TestSuite(TreeMapTest.class));
495	<	suite.addTest(new TestSuite(TreeSetTest.class));
496	<	suite.addTest(new TestSuite(TreeSubMapTest.class));
497	<	suite.addTest(new TestSuite(TreeSubSetTest.class));
432	>	// Java7+ test classes
433	>	TestSuite suite = newTestSuite(
434	>	ForkJoinPoolTest.suite(),
435	>	ForkJoinTaskTest.suite(),
436	>	RecursiveActionTest.suite(),
437	>	RecursiveTaskTest.suite(),
438	>	LinkedTransferQueueTest.suite(),
439	>	PhaserTest.suite(),
440	>	ThreadLocalRandomTest.suite(),
441	>	AbstractExecutorServiceTest.suite(),
442	>	AbstractQueueTest.suite(),
443	>	AbstractQueuedSynchronizerTest.suite(),
444	>	AbstractQueuedLongSynchronizerTest.suite(),
445	>	ArrayBlockingQueueTest.suite(),
446	>	ArrayDequeTest.suite(),
447	>	AtomicBooleanTest.suite(),
448	>	AtomicIntegerArrayTest.suite(),
449	>	AtomicIntegerFieldUpdaterTest.suite(),
450	>	AtomicIntegerTest.suite(),
451	>	AtomicLongArrayTest.suite(),
452	>	AtomicLongFieldUpdaterTest.suite(),
453	>	AtomicLongTest.suite(),
454	>	AtomicMarkableReferenceTest.suite(),
455	>	AtomicReferenceArrayTest.suite(),
456	>	AtomicReferenceFieldUpdaterTest.suite(),
457	>	AtomicReferenceTest.suite(),
458	>	AtomicStampedReferenceTest.suite(),
459	>	ConcurrentHashMapTest.suite(),
460	>	ConcurrentLinkedDequeTest.suite(),
461	>	ConcurrentLinkedQueueTest.suite(),
462	>	ConcurrentSkipListMapTest.suite(),
463	>	ConcurrentSkipListSubMapTest.suite(),
464	>	ConcurrentSkipListSetTest.suite(),
465	>	ConcurrentSkipListSubSetTest.suite(),
466	>	CopyOnWriteArrayListTest.suite(),
467	>	CopyOnWriteArraySetTest.suite(),
468	>	CountDownLatchTest.suite(),
469	>	CyclicBarrierTest.suite(),
470	>	DelayQueueTest.suite(),
471	>	EntryTest.suite(),
472	>	ExchangerTest.suite(),
473	>	ExecutorsTest.suite(),
474	>	ExecutorCompletionServiceTest.suite(),
475	>	FutureTaskTest.suite(),
476	>	LinkedBlockingDequeTest.suite(),
477	>	LinkedBlockingQueueTest.suite(),
478	>	LinkedListTest.suite(),
479	>	LockSupportTest.suite(),
480	>	PriorityBlockingQueueTest.suite(),
481	>	PriorityQueueTest.suite(),
482	>	ReentrantLockTest.suite(),
483	>	ReentrantReadWriteLockTest.suite(),
484	>	ScheduledExecutorTest.suite(),
485	>	ScheduledExecutorSubclassTest.suite(),
486	>	SemaphoreTest.suite(),
487	>	SynchronousQueueTest.suite(),
488	>	SystemTest.suite(),
489	>	ThreadLocalTest.suite(),
490	>	ThreadPoolExecutorTest.suite(),
491	>	ThreadPoolExecutorSubclassTest.suite(),
492	>	ThreadTest.suite(),
493	>	TimeUnitTest.suite(),
494	>	TreeMapTest.suite(),
495	>	TreeSetTest.suite(),
496	>	TreeSubMapTest.suite(),
497	>	TreeSubSetTest.suite());
498	>
499	>	// Java8+ test classes
500	>	if (atLeastJava8()) {
501	>	String[] java8TestClassNames = {
502	>	"Atomic8Test",
503	>	"CompletableFutureTest",
504	>	"ConcurrentHashMap8Test",
505	>	"CountedCompleterTest",
506	>	"DoubleAccumulatorTest",
507	>	"DoubleAdderTest",
508	>	"ForkJoinPool8Test",
509	>	"ForkJoinTask8Test",
510	>	"LongAccumulatorTest",
511	>	"LongAdderTest",
512	>	"SplittableRandomTest",
513	>	"StampedLockTest",
514	>	"SubmissionPublisherTest",
515	>	"ThreadLocalRandom8Test",
516	>	"TimeUnit8Test",
517	>	};
518	>	addNamedTestClasses(suite, java8TestClassNames);
519	>	}
520	>
521	>	// Java9+ test classes
522	>	if (atLeastJava9()) {
523	>	String[] java9TestClassNames = {
524	>	"AtomicBoolean9Test",
525	>	"AtomicInteger9Test",
526	>	"AtomicIntegerArray9Test",
527	>	"AtomicLong9Test",
528	>	"AtomicLongArray9Test",
529	>	"AtomicReference9Test",
530	>	"AtomicReferenceArray9Test",
531	>	"ExecutorCompletionService9Test",
532	>	};
533	>	addNamedTestClasses(suite, java9TestClassNames);
534	>	}
535
536		return suite;
537		}
538
539	+	/** Returns list of junit-style test method names in given class. */
540	+	public static ArrayList<String> testMethodNames(Class<?> testClass) {
541	+	Method[] methods = testClass.getDeclaredMethods();
542	+	ArrayList<String> names = new ArrayList<String>(methods.length);
543	+	for (Method method : methods) {
544	+	if (method.getName().startsWith("test")
545	+	&& Modifier.isPublic(method.getModifiers())
546	+	// method.getParameterCount() requires jdk8+
547	+	&& method.getParameterTypes().length == 0) {
548	+	names.add(method.getName());
549	+	}
550	+	}
551	+	return names;
552	+	}
553	+
554	+	/**
555	+	* Returns junit-style testSuite for the given test class, but
556	+	* parameterized by passing extra data to each test.
557	+	*/
558	+	public static <ExtraData> Test parameterizedTestSuite
559	+	(Class<? extends JSR166TestCase> testClass,
560	+	Class<ExtraData> dataClass,
561	+	ExtraData data) {
562	+	try {
563	+	TestSuite suite = new TestSuite();
564	+	Constructor c =
565	+	testClass.getDeclaredConstructor(dataClass, String.class);
566	+	for (String methodName : testMethodNames(testClass))
567	+	suite.addTest((Test) c.newInstance(data, methodName));
568	+	return suite;
569	+	} catch (Exception e) {
570	+	throw new Error(e);
571	+	}
572	+	}
573	+
574	+	/**
575	+	* Returns junit-style testSuite for the jdk8 extension of the
576	+	* given test class, but parameterized by passing extra data to
577	+	* each test.  Uses reflection to allow compilation in jdk7.
578	+	*/
579	+	public static <ExtraData> Test jdk8ParameterizedTestSuite
580	+	(Class<? extends JSR166TestCase> testClass,
581	+	Class<ExtraData> dataClass,
582	+	ExtraData data) {
583	+	if (atLeastJava8()) {
584	+	String name = testClass.getName();
585	+	String name8 = name.replaceAll("Test$", "8Test");
586	+	if (name.equals(name8)) throw new Error(name);
587	+	try {
588	+	return (Test)
589	+	Class.forName(name8)
590	+	.getMethod("testSuite", new Class[] { dataClass })
591	+	.invoke(null, data);
592	+	} catch (Exception e) {
593	+	throw new Error(e);
594	+	}
595	+	} else {
596	+	return new TestSuite();
597	+	}
598	+	}
599	+
600	+	// Delays for timing-dependent tests, in milliseconds.
601
602		public static long SHORT_DELAY_MS;
603		public static long SMALL_DELAY_MS;
604		public static long MEDIUM_DELAY_MS;
605		public static long LONG_DELAY_MS;
606
194	–
607		/**
608	<	* Returns the shortest timed delay. This could
609	<	* be reimplemented to use for example a Property.
608	>	* Returns the shortest timed delay. This can be scaled up for
609	>	* slow machines using the jsr166.delay.factor system property,
610	>	* or via jtreg's -timeoutFactor: flag.
611	>	* http://openjdk.java.net/jtreg/command-help.html
612		*/
613		protected long getShortDelay() {
614	<	return 50;
614	>	return (long) (50 * delayFactor);
615		}
616
203	–
617		/**
618		* Sets delays as multiples of SHORT_DELAY.
619		*/
620		protected void setDelays() {
621		SHORT_DELAY_MS = getShortDelay();
622	<	SMALL_DELAY_MS = SHORT_DELAY_MS * 5;
622	>	SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
623		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
624	<	LONG_DELAY_MS = SHORT_DELAY_MS * 50;
624	>	LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
625	>	}
626	>
627	>	/**
628	>	* Returns a timeout in milliseconds to be used in tests that
629	>	* verify that operations block or time out.
630	>	*/
631	>	long timeoutMillis() {
632	>	return SHORT_DELAY_MS / 4;
633	>	}
634	>
635	>	/**
636	>	* Returns a new Date instance representing a time at least
637	>	* delayMillis milliseconds in the future.
638	>	*/
639	>	Date delayedDate(long delayMillis) {
640	>	// Add 1 because currentTimeMillis is known to round into the past.
641	>	return new Date(System.currentTimeMillis() + delayMillis + 1);
642		}
643
644		/**
645	<	* Flag set true if any threadAssert methods fail
645	>	* The first exception encountered if any threadAssertXXX method fails.
646		*/
647	<	volatile boolean threadFailed;
647	>	private final AtomicReference<Throwable> threadFailure
648	>	= new AtomicReference<Throwable>(null);
649
650		/**
651	<	* Initializes test to indicate that no thread assertions have failed
651	>	* Records an exception so that it can be rethrown later in the test
652	>	* harness thread, triggering a test case failure.  Only the first
653	>	* failure is recorded; subsequent calls to this method from within
654	>	* the same test have no effect.
655		*/
656	+	public void threadRecordFailure(Throwable t) {
657	+	System.err.println(t);
658	+	dumpTestThreads();
659	+	threadFailure.compareAndSet(null, t);
660	+	}
661	+
662		public void setUp() {
663		setDelays();
664	<	threadFailed = false;
664	>	}
665	>
666	>	void tearDownFail(String format, Object... args) {
667	>	String msg = toString() + ": " + String.format(format, args);
668	>	System.err.println(msg);
669	>	dumpTestThreads();
670	>	throw new AssertionFailedError(msg);
671		}
672
673		/**
674	<	* Triggers test case failure if any thread assertions have failed
674	>	* Extra checks that get done for all test cases.
675	>	*
676	>	* Triggers test case failure if any thread assertions have failed,
677	>	* by rethrowing, in the test harness thread, any exception recorded
678	>	* earlier by threadRecordFailure.
679	>	*
680	>	* Triggers test case failure if interrupt status is set in the main thread.
681	>	*/
682	>	public void tearDown() throws Exception {
683	>	Throwable t = threadFailure.getAndSet(null);
684	>	if (t != null) {
685	>	if (t instanceof Error)
686	>	throw (Error) t;
687	>	else if (t instanceof RuntimeException)
688	>	throw (RuntimeException) t;
689	>	else if (t instanceof Exception)
690	>	throw (Exception) t;
691	>	else {
692	>	AssertionFailedError afe =
693	>	new AssertionFailedError(t.toString());
694	>	afe.initCause(t);
695	>	throw afe;
696	>	}
697	>	}
698	>
699	>	if (Thread.interrupted())
700	>	tearDownFail("interrupt status set in main thread");
701	>
702	>	checkForkJoinPoolThreadLeaks();
703	>	}
704	>
705	>	/**
706	>	* Finds missing PoolCleaners
707		*/
708	<	public void tearDown() {
709	<	assertFalse(threadFailed);
708	>	void checkForkJoinPoolThreadLeaks() throws InterruptedException {
709	>	Thread[] survivors = new Thread[7];
710	>	int count = Thread.enumerate(survivors);
711	>	for (int i = 0; i < count; i++) {
712	>	Thread thread = survivors[i];
713	>	String name = thread.getName();
714	>	if (name.startsWith("ForkJoinPool-")) {
715	>	// give thread some time to terminate
716	>	thread.join(LONG_DELAY_MS);
717	>	if (thread.isAlive())
718	>	tearDownFail("Found leaked ForkJoinPool thread thread=%s",
719	>	thread);
720	>	}
721	>	}
722	>
723	>	if (!ForkJoinPool.commonPool()
724	>	.awaitQuiescence(LONG_DELAY_MS, MILLISECONDS))
725	>	tearDownFail("ForkJoin common pool thread stuck");
726		}
727
728		/**
729	<	* Fail, also setting status to indicate current testcase should fail
729	>	* Just like fail(reason), but additionally recording (using
730	>	* threadRecordFailure) any AssertionFailedError thrown, so that
731	>	* the current testcase will fail.
732		*/
733		public void threadFail(String reason) {
734	<	threadFailed = true;
735	<	fail(reason);
734	>	try {
735	>	fail(reason);
736	>	} catch (AssertionFailedError t) {
737	>	threadRecordFailure(t);
738	>	throw t;
739	>	}
740		}
741
742		/**
743	<	* If expression not true, set status to indicate current testcase
744	<	* should fail
743	>	* Just like assertTrue(b), but additionally recording (using
744	>	* threadRecordFailure) any AssertionFailedError thrown, so that
745	>	* the current testcase will fail.
746		*/
747		public void threadAssertTrue(boolean b) {
748	<	if (!b) {
248	<	threadFailed = true;
748	>	try {
749		assertTrue(b);
750	+	} catch (AssertionFailedError t) {
751	+	threadRecordFailure(t);
752	+	throw t;
753		}
754		}
755
756		/**
757	<	* If expression not false, set status to indicate current testcase
758	<	* should fail
757	>	* Just like assertFalse(b), but additionally recording (using
758	>	* threadRecordFailure) any AssertionFailedError thrown, so that
759	>	* the current testcase will fail.
760		*/
761		public void threadAssertFalse(boolean b) {
762	<	if (b) {
259	<	threadFailed = true;
762	>	try {
763		assertFalse(b);
764	+	} catch (AssertionFailedError t) {
765	+	threadRecordFailure(t);
766	+	throw t;
767		}
768		}
769
770		/**
771	<	* If argument not null, set status to indicate current testcase
772	<	* should fail
771	>	* Just like assertNull(x), but additionally recording (using
772	>	* threadRecordFailure) any AssertionFailedError thrown, so that
773	>	* the current testcase will fail.
774		*/
775		public void threadAssertNull(Object x) {
776	<	if (x != null) {
270	<	threadFailed = true;
776	>	try {
777		assertNull(x);
778	+	} catch (AssertionFailedError t) {
779	+	threadRecordFailure(t);
780	+	throw t;
781		}
782		}
783
784		/**
785	<	* If arguments not equal, set status to indicate current testcase
786	<	* should fail
785	>	* Just like assertEquals(x, y), but additionally recording (using
786	>	* threadRecordFailure) any AssertionFailedError thrown, so that
787	>	* the current testcase will fail.
788		*/
789		public void threadAssertEquals(long x, long y) {
790	<	if (x != y) {
281	<	threadFailed = true;
790	>	try {
791		assertEquals(x, y);
792	+	} catch (AssertionFailedError t) {
793	+	threadRecordFailure(t);
794	+	throw t;
795		}
796		}
797
798		/**
799	<	* If arguments not equal, set status to indicate current testcase
800	<	* should fail
799	>	* Just like assertEquals(x, y), but additionally recording (using
800	>	* threadRecordFailure) any AssertionFailedError thrown, so that
801	>	* the current testcase will fail.
802		*/
803		public void threadAssertEquals(Object x, Object y) {
804	<	if (x != y && (x == null || !x.equals(y))) {
292	<	threadFailed = true;
804	>	try {
805		assertEquals(x, y);
806	+	} catch (AssertionFailedError fail) {
807	+	threadRecordFailure(fail);
808	+	throw fail;
809	+	} catch (Throwable fail) {
810	+	threadUnexpectedException(fail);
811		}
812		}
813
814		/**
815	<	* If arguments not identical, set status to indicate current testcase
816	<	* should fail
815	>	* Just like assertSame(x, y), but additionally recording (using
816	>	* threadRecordFailure) any AssertionFailedError thrown, so that
817	>	* the current testcase will fail.
818		*/
819		public void threadAssertSame(Object x, Object y) {
820	<	if (x != y) {
303	<	threadFailed = true;
820	>	try {
821		assertSame(x, y);
822	+	} catch (AssertionFailedError fail) {
823	+	threadRecordFailure(fail);
824	+	throw fail;
825		}
826		}
827
828		/**
829	<	* threadFail with message "should throw exception"
829	>	* Calls threadFail with message "should throw exception".
830		*/
831		public void threadShouldThrow() {
832	<	threadFailed = true;
313	<	fail("should throw exception");
832	>	threadFail("should throw exception");
833		}
834
835		/**
836	<	* threadFail with message "should throw" + exceptionName
836	>	* Calls threadFail with message "should throw" + exceptionName.
837		*/
838		public void threadShouldThrow(String exceptionName) {
839	<	threadFailed = true;
840	<	fail("should throw " + exceptionName);
839	>	threadFail("should throw " + exceptionName);
840	>	}
841	>
842	>	/**
843	>	* Records the given exception using {@link #threadRecordFailure},
844	>	* then rethrows the exception, wrapping it in an
845	>	* AssertionFailedError if necessary.
846	>	*/
847	>	public void threadUnexpectedException(Throwable t) {
848	>	threadRecordFailure(t);
849	>	t.printStackTrace();
850	>	if (t instanceof RuntimeException)
851	>	throw (RuntimeException) t;
852	>	else if (t instanceof Error)
853	>	throw (Error) t;
854	>	else {
855	>	AssertionFailedError afe =
856	>	new AssertionFailedError("unexpected exception: " + t);
857	>	afe.initCause(t);
858	>	throw afe;
859	>	}
860		}
861
862		/**
863	<	* threadFail with message "Unexpected exception"
863	>	* Delays, via Thread.sleep, for the given millisecond delay, but
864	>	* if the sleep is shorter than specified, may re-sleep or yield
865	>	* until time elapses.  Ensures that the given time, as measured
866	>	* by System.nanoTime(), has elapsed.
867		*/
868	<	public void threadUnexpectedException() {
869	<	threadFailed = true;
870	<	fail("Unexpected exception");
868	>	static void delay(long millis) throws InterruptedException {
869	>	long nanos = millis * (1000 * 1000);
870	>	final long wakeupTime = System.nanoTime() + nanos;
871	>	do {
872	>	if (millis > 0L)
873	>	Thread.sleep(millis);
874	>	else // too short to sleep
875	>	Thread.yield();
876	>	nanos = wakeupTime - System.nanoTime();
877	>	millis = nanos / (1000 * 1000);
878	>	} while (nanos >= 0L);
879		}
880
881		/**
882	<	* threadFail with message "Unexpected exception", with argument
882	>	* Allows use of try-with-resources with per-test thread pools.
883		*/
884	<	public void threadUnexpectedException(Throwable ex) {
885	<	threadFailed = true;
886	<	ex.printStackTrace();
887	<	fail("Unexpected exception: " + ex);
884	>	class PoolCleaner implements AutoCloseable {
885	>	private final ExecutorService pool;
886	>	public PoolCleaner(ExecutorService pool) { this.pool = pool; }
887	>	public void close() { joinPool(pool); }
888		}
889
890		/**
891	<	* Wait out termination of a thread pool or fail doing so
891	>	* An extension of PoolCleaner that has an action to release the pool.
892		*/
893	<	public void joinPool(ExecutorService exec) {
893	>	class PoolCleanerWithReleaser extends PoolCleaner {
894	>	private final Runnable releaser;
895	>	public PoolCleanerWithReleaser(ExecutorService pool, Runnable releaser) {
896	>	super(pool);
897	>	this.releaser = releaser;
898	>	}
899	>	public void close() {
900	>	try {
901	>	releaser.run();
902	>	} finally {
903	>	super.close();
904	>	}
905	>	}
906	>	}
907	>
908	>	PoolCleaner cleaner(ExecutorService pool) {
909	>	return new PoolCleaner(pool);
910	>	}
911	>
912	>	PoolCleaner cleaner(ExecutorService pool, Runnable releaser) {
913	>	return new PoolCleanerWithReleaser(pool, releaser);
914	>	}
915	>
916	>	PoolCleaner cleaner(ExecutorService pool, CountDownLatch latch) {
917	>	return new PoolCleanerWithReleaser(pool, releaser(latch));
918	>	}
919	>
920	>	Runnable releaser(final CountDownLatch latch) {
921	>	return new Runnable() { public void run() {
922	>	do { latch.countDown(); }
923	>	while (latch.getCount() > 0);
924	>	}};
925	>	}
926	>
927	>	PoolCleaner cleaner(ExecutorService pool, AtomicBoolean flag) {
928	>	return new PoolCleanerWithReleaser(pool, releaser(flag));
929	>	}
930	>
931	>	Runnable releaser(final AtomicBoolean flag) {
932	>	return new Runnable() { public void run() { flag.set(true); }};
933	>	}
934	>
935	>	/**
936	>	* Waits out termination of a thread pool or fails doing so.
937	>	*/
938	>	void joinPool(ExecutorService pool) {
939		try {
940	<	exec.shutdown();
941	<	assertTrue(exec.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
940	>	pool.shutdown();
941	>	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)) {
942	>	try {
943	>	threadFail("ExecutorService " + pool +
944	>	" did not terminate in a timely manner");
945	>	} finally {
946	>	// last resort, for the benefit of subsequent tests
947	>	pool.shutdownNow();
948	>	pool.awaitTermination(MEDIUM_DELAY_MS, MILLISECONDS);
949	>	}
950	>	}
951		} catch (SecurityException ok) {
952		// Allowed in case test doesn't have privs
953	<	} catch (InterruptedException ie) {
954	<	fail("Unexpected InterruptedException");
953	>	} catch (InterruptedException fail) {
954	>	threadFail("Unexpected InterruptedException");
955		}
956		}
957
958	+	/**
959	+	* Like Runnable, but with the freedom to throw anything.
960	+	* junit folks had the same idea:
961	+	* http://junit.org/junit5/docs/snapshot/api/org/junit/gen5/api/Executable.html
962	+	*/
963	+	interface Action { public void run() throws Throwable; }
964
965		/**
966	<	* fail with message "should throw exception"
966	>	* Runs all the given actions in parallel, failing if any fail.
967	>	* Useful for running multiple variants of tests that are
968	>	* necessarily individually slow because they must block.
969		*/
970	<	public void shouldThrow() {
971	<	fail("Should throw exception");
970	>	void testInParallel(Action ... actions) {
971	>	ExecutorService pool = Executors.newCachedThreadPool();
972	>	try (PoolCleaner cleaner = cleaner(pool)) {
973	>	ArrayList<Future<?>> futures = new ArrayList<>(actions.length);
974	>	for (final Action action : actions)
975	>	futures.add(pool.submit(new CheckedRunnable() {
976	>	public void realRun() throws Throwable { action.run();}}));
977	>	for (Future<?> future : futures)
978	>	try {
979	>	assertNull(future.get(LONG_DELAY_MS, MILLISECONDS));
980	>	} catch (ExecutionException ex) {
981	>	threadUnexpectedException(ex.getCause());
982	>	} catch (Exception ex) {
983	>	threadUnexpectedException(ex);
984	>	}
985	>	}
986		}
987
988		/**
989	<	* fail with message "should throw " + exceptionName
989	>	* A debugging tool to print stack traces of most threads, as jstack does.
990	>	* Uninteresting threads are filtered out.
991		*/
992	<	public void shouldThrow(String exceptionName) {
993	<	fail("Should throw " + exceptionName);
992	>	static void dumpTestThreads() {
993	>	SecurityManager sm = System.getSecurityManager();
994	>	if (sm != null) {
995	>	try {
996	>	System.setSecurityManager(null);
997	>	} catch (SecurityException giveUp) {
998	>	return;
999	>	}
1000	>	}
1001	>
1002	>	ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
1003	>	System.err.println("------ stacktrace dump start ------");
1004	>	for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) {
1005	>	String name = info.getThreadName();
1006	>	if ("Signal Dispatcher".equals(name))
1007	>	continue;
1008	>	if ("Reference Handler".equals(name)
1009	>	&& info.getLockName().startsWith("java.lang.ref.Reference$Lock"))
1010	>	continue;
1011	>	if ("Finalizer".equals(name)
1012	>	&& info.getLockName().startsWith("java.lang.ref.ReferenceQueue$Lock"))
1013	>	continue;
1014	>	if ("checkForWedgedTest".equals(name))
1015	>	continue;
1016	>	System.err.print(info);
1017	>	}
1018	>	System.err.println("------ stacktrace dump end ------");
1019	>
1020	>	if (sm != null) System.setSecurityManager(sm);
1021	>	}
1022	>
1023	>	/**
1024	>	* Checks that thread does not terminate within the default
1025	>	* millisecond delay of {@code timeoutMillis()}.
1026	>	*/
1027	>	void assertThreadStaysAlive(Thread thread) {
1028	>	assertThreadStaysAlive(thread, timeoutMillis());
1029	>	}
1030	>
1031	>	/**
1032	>	* Checks that thread does not terminate within the given millisecond delay.
1033	>	*/
1034	>	void assertThreadStaysAlive(Thread thread, long millis) {
1035	>	try {
1036	>	// No need to optimize the failing case via Thread.join.
1037	>	delay(millis);
1038	>	assertTrue(thread.isAlive());
1039	>	} catch (InterruptedException fail) {
1040	>	threadFail("Unexpected InterruptedException");
1041	>	}
1042	>	}
1043	>
1044	>	/**
1045	>	* Checks that the threads do not terminate within the default
1046	>	* millisecond delay of {@code timeoutMillis()}.
1047	>	*/
1048	>	void assertThreadsStayAlive(Thread... threads) {
1049	>	assertThreadsStayAlive(timeoutMillis(), threads);
1050		}
1051
1052		/**
1053	<	* fail with message "Unexpected exception"
1053	>	* Checks that the threads do not terminate within the given millisecond delay.
1054		*/
1055	<	public void unexpectedException() {
1056	<	fail("Unexpected exception");
1055	>	void assertThreadsStayAlive(long millis, Thread... threads) {
1056	>	try {
1057	>	// No need to optimize the failing case via Thread.join.
1058	>	delay(millis);
1059	>	for (Thread thread : threads)
1060	>	assertTrue(thread.isAlive());
1061	>	} catch (InterruptedException fail) {
1062	>	threadFail("Unexpected InterruptedException");
1063	>	}
1064		}
1065
1066		/**
1067	<	* fail with message "Unexpected exception", with argument
1067	>	* Checks that future.get times out, with the default timeout of
1068	>	* {@code timeoutMillis()}.
1069		*/
1070	<	public void unexpectedException(Throwable ex) {
1071	<	ex.printStackTrace();
382	<	fail("Unexpected exception: " + ex);
1070	>	void assertFutureTimesOut(Future future) {
1071	>	assertFutureTimesOut(future, timeoutMillis());
1072		}
1073
1074	+	/**
1075	+	* Checks that future.get times out, with the given millisecond timeout.
1076	+	*/
1077	+	void assertFutureTimesOut(Future future, long timeoutMillis) {
1078	+	long startTime = System.nanoTime();
1079	+	try {
1080	+	future.get(timeoutMillis, MILLISECONDS);
1081	+	shouldThrow();
1082	+	} catch (TimeoutException success) {
1083	+	} catch (Exception fail) {
1084	+	threadUnexpectedException(fail);
1085	+	} finally { future.cancel(true); }
1086	+	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
1087	+	}
1088	+
1089	+	/**
1090	+	* Fails with message "should throw exception".
1091	+	*/
1092	+	public void shouldThrow() {
1093	+	fail("Should throw exception");
1094	+	}
1095	+
1096	+	/**
1097	+	* Fails with message "should throw " + exceptionName.
1098	+	*/
1099	+	public void shouldThrow(String exceptionName) {
1100	+	fail("Should throw " + exceptionName);
1101	+	}
1102
1103		/**
1104		* The number of elements to place in collections, arrays, etc.
#	Line 408 | Line 1125 | public class JSR166TestCase extends Test
1125		public static final Integer m6  = new Integer(-6);
1126		public static final Integer m10 = new Integer(-10);
1127
411	–
1128		/**
1129		* Runs Runnable r with a security policy that permits precisely
1130		* the specified permissions.  If there is no current security
#	Line 420 | Line 1136 | public class JSR166TestCase extends Test
1136		SecurityManager sm = System.getSecurityManager();
1137		if (sm == null) {
1138		r.run();
1139	+	}
1140	+	runWithSecurityManagerWithPermissions(r, permissions);
1141	+	}
1142	+
1143	+	/**
1144	+	* Runs Runnable r with a security policy that permits precisely
1145	+	* the specified permissions.  If there is no current security
1146	+	* manager, a temporary one is set for the duration of the
1147	+	* Runnable.  We require that any security manager permit
1148	+	* getPolicy/setPolicy.
1149	+	*/
1150	+	public void runWithSecurityManagerWithPermissions(Runnable r,
1151	+	Permission... permissions) {
1152	+	SecurityManager sm = System.getSecurityManager();
1153	+	if (sm == null) {
1154		Policy savedPolicy = Policy.getPolicy();
1155		try {
1156		Policy.setPolicy(permissivePolicy());
1157		System.setSecurityManager(new SecurityManager());
1158	<	runWithPermissions(r, permissions);
1158	>	runWithSecurityManagerWithPermissions(r, permissions);
1159		} finally {
1160		System.setSecurityManager(null);
1161		Policy.setPolicy(savedPolicy);
#	Line 472 | Line 1203 | public class JSR166TestCase extends Test
1203		return perms.implies(p);
1204		}
1205		public void refresh() {}
1206	+	public String toString() {
1207	+	List<Permission> ps = new ArrayList<Permission>();
1208	+	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
1209	+	ps.add(e.nextElement());
1210	+	return "AdjustablePolicy with permissions " + ps;
1211	+	}
1212		}
1213
1214		/**
#	Line 494 | Line 1231 | public class JSR166TestCase extends Test
1231		}
1232
1233		/**
1234	<	* Sleep until the timeout has elapsed, or interrupted.
1235	<	* Does <em>NOT</em> throw InterruptedException.
1234	>	* Sleeps until the given time has elapsed.
1235	>	* Throws AssertionFailedError if interrupted.
1236		*/
1237	<	void sleepTillInterrupted(long timeoutMillis) {
1237	>	void sleep(long millis) {
1238		try {
1239	<	Thread.sleep(timeoutMillis);
1240	<	} catch (InterruptedException wakeup) {}
1239	>	delay(millis);
1240	>	} catch (InterruptedException fail) {
1241	>	AssertionFailedError afe =
1242	>	new AssertionFailedError("Unexpected InterruptedException");
1243	>	afe.initCause(fail);
1244	>	throw afe;
1245	>	}
1246		}
1247
1248		/**
1249	<	* Returns a new started Thread running the given runnable.
1249	>	* Spin-waits up to the specified number of milliseconds for the given
1250	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1251	>	*/
1252	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1253	>	long startTime = System.nanoTime();
1254	>	for (;;) {
1255	>	Thread.State s = thread.getState();
1256	>	if (s == Thread.State.BLOCKED ||
1257	>	s == Thread.State.WAITING ||
1258	>	s == Thread.State.TIMED_WAITING)
1259	>	return;
1260	>	else if (s == Thread.State.TERMINATED)
1261	>	fail("Unexpected thread termination");
1262	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
1263	>	threadAssertTrue(thread.isAlive());
1264	>	return;
1265	>	}
1266	>	Thread.yield();
1267	>	}
1268	>	}
1269	>
1270	>	/**
1271	>	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
1272	>	* state: BLOCKED, WAITING, or TIMED_WAITING.
1273	>	*/
1274	>	void waitForThreadToEnterWaitState(Thread thread) {
1275	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
1276	>	}
1277	>
1278	>	/**
1279	>	* Returns the number of milliseconds since time given by
1280	>	* startNanoTime, which must have been previously returned from a
1281	>	* call to {@link System#nanoTime()}.
1282	>	*/
1283	>	static long millisElapsedSince(long startNanoTime) {
1284	>	return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
1285	>	}
1286	>
1287	>	//     void assertTerminatesPromptly(long timeoutMillis, Runnable r) {
1288	>	//         long startTime = System.nanoTime();
1289	>	//         try {
1290	>	//             r.run();
1291	>	//         } catch (Throwable fail) { threadUnexpectedException(fail); }
1292	>	//         if (millisElapsedSince(startTime) > timeoutMillis/2)
1293	>	//             throw new AssertionFailedError("did not return promptly");
1294	>	//     }
1295	>
1296	>	//     void assertTerminatesPromptly(Runnable r) {
1297	>	//         assertTerminatesPromptly(LONG_DELAY_MS/2, r);
1298	>	//     }
1299	>
1300	>	/**
1301	>	* Checks that timed f.get() returns the expected value, and does not
1302	>	* wait for the timeout to elapse before returning.
1303	>	*/
1304	>	<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
1305	>	long startTime = System.nanoTime();
1306	>	try {
1307	>	assertEquals(expectedValue, f.get(timeoutMillis, MILLISECONDS));
1308	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
1309	>	if (millisElapsedSince(startTime) > timeoutMillis/2)
1310	>	throw new AssertionFailedError("timed get did not return promptly");
1311	>	}
1312	>
1313	>	<T> void checkTimedGet(Future<T> f, T expectedValue) {
1314	>	checkTimedGet(f, expectedValue, LONG_DELAY_MS);
1315	>	}
1316	>
1317	>	/**
1318	>	* Returns a new started daemon Thread running the given runnable.
1319		*/
1320		Thread newStartedThread(Runnable runnable) {
1321		Thread t = new Thread(runnable);
1322	+	t.setDaemon(true);
1323		t.start();
1324		return t;
1325		}
1326
1327	+	/**
1328	+	* Waits for the specified time (in milliseconds) for the thread
1329	+	* to terminate (using {@link Thread#join(long)}), else interrupts
1330	+	* the thread (in the hope that it may terminate later) and fails.
1331	+	*/
1332	+	void awaitTermination(Thread t, long timeoutMillis) {
1333	+	try {
1334	+	t.join(timeoutMillis);
1335	+	} catch (InterruptedException fail) {
1336	+	threadUnexpectedException(fail);
1337	+	} finally {
1338	+	if (t.getState() != Thread.State.TERMINATED) {
1339	+	t.interrupt();
1340	+	threadFail("timed out waiting for thread to terminate");
1341	+	}
1342	+	}
1343	+	}
1344	+
1345	+	/**
1346	+	* Waits for LONG_DELAY_MS milliseconds for the thread to
1347	+	* terminate (using {@link Thread#join(long)}), else interrupts
1348	+	* the thread (in the hope that it may terminate later) and fails.
1349	+	*/
1350	+	void awaitTermination(Thread t) {
1351	+	awaitTermination(t, LONG_DELAY_MS);
1352	+	}
1353	+
1354		// Some convenient Runnable classes
1355
1356		public abstract class CheckedRunnable implements Runnable {
#	Line 520 | Line 1359 | public class JSR166TestCase extends Test
1359		public final void run() {
1360		try {
1361		realRun();
1362	<	} catch (Throwable t) {
1363	<	threadUnexpectedException(t);
1362	>	} catch (Throwable fail) {
1363	>	threadUnexpectedException(fail);
1364		}
1365		}
1366		}
#	Line 574 | Line 1413 | public class JSR166TestCase extends Test
1413		realRun();
1414		threadShouldThrow("InterruptedException");
1415		} catch (InterruptedException success) {
1416	<	} catch (Throwable t) {
1417	<	threadUnexpectedException(t);
1416	>	threadAssertFalse(Thread.interrupted());
1417	>	} catch (Throwable fail) {
1418	>	threadUnexpectedException(fail);
1419		}
1420		}
1421		}
#	Line 586 | Line 1426 | public class JSR166TestCase extends Test
1426		public final T call() {
1427		try {
1428		return realCall();
1429	<	} catch (Throwable t) {
1430	<	threadUnexpectedException(t);
1429	>	} catch (Throwable fail) {
1430	>	threadUnexpectedException(fail);
1431	>	return null;
1432		}
592	–	return null;
1433		}
1434		}
1435
1436	<	public abstract class CheckedInterruptedCallable<T> implements Callable<T> {
1436	>	public abstract class CheckedInterruptedCallable<T>
1437	>	implements Callable<T> {
1438		protected abstract T realCall() throws Throwable;
1439
1440		public final T call() {
#	Line 602 | Line 1443 | public class JSR166TestCase extends Test
1443		threadShouldThrow("InterruptedException");
1444		return result;
1445		} catch (InterruptedException success) {
1446	<	} catch (Throwable t) {
1447	<	threadUnexpectedException(t);
1446	>	threadAssertFalse(Thread.interrupted());
1447	>	} catch (Throwable fail) {
1448	>	threadUnexpectedException(fail);
1449		}
1450		return null;
1451		}
#	Line 620 | Line 1462 | public class JSR166TestCase extends Test
1462		public static final String TEST_STRING = "a test string";
1463
1464		public static class StringTask implements Callable<String> {
1465	<	public String call() { return TEST_STRING; }
1465	>	final String value;
1466	>	public StringTask() { this(TEST_STRING); }
1467	>	public StringTask(String value) { this.value = value; }
1468	>	public String call() { return value; }
1469		}
1470
1471		public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
1472		return new CheckedCallable<String>() {
1473	<	public String realCall() {
1473	>	protected String realCall() {
1474		try {
1475		latch.await();
1476		} catch (InterruptedException quittingTime) {}
#	Line 633 | Line 1478 | public class JSR166TestCase extends Test
1478		}};
1479		}
1480
1481	+	public Runnable countDowner(final CountDownLatch latch) {
1482	+	return new CheckedRunnable() {
1483	+	public void realRun() throws InterruptedException {
1484	+	latch.countDown();
1485	+	}};
1486	+	}
1487	+
1488	+	class LatchAwaiter extends CheckedRunnable {
1489	+	static final int NEW = 0;
1490	+	static final int RUNNING = 1;
1491	+	static final int DONE = 2;
1492	+	final CountDownLatch latch;
1493	+	int state = NEW;
1494	+	LatchAwaiter(CountDownLatch latch) { this.latch = latch; }
1495	+	public void realRun() throws InterruptedException {
1496	+	state = 1;
1497	+	await(latch);
1498	+	state = 2;
1499	+	}
1500	+	}
1501	+
1502	+	public LatchAwaiter awaiter(CountDownLatch latch) {
1503	+	return new LatchAwaiter(latch);
1504	+	}
1505	+
1506	+	public void await(CountDownLatch latch, long timeoutMillis) {
1507	+	try {
1508	+	if (!latch.await(timeoutMillis, MILLISECONDS))
1509	+	fail("timed out waiting for CountDownLatch for "
1510	+	+ (timeoutMillis/1000) + " sec");
1511	+	} catch (Throwable fail) {
1512	+	threadUnexpectedException(fail);
1513	+	}
1514	+	}
1515	+
1516	+	public void await(CountDownLatch latch) {
1517	+	await(latch, LONG_DELAY_MS);
1518	+	}
1519	+
1520	+	public void await(Semaphore semaphore) {
1521	+	try {
1522	+	if (!semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS))
1523	+	fail("timed out waiting for Semaphore for "
1524	+	+ (LONG_DELAY_MS/1000) + " sec");
1525	+	} catch (Throwable fail) {
1526	+	threadUnexpectedException(fail);
1527	+	}
1528	+	}
1529	+
1530	+	//     /**
1531	+	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1532	+	//      */
1533	+	//     public void await(AtomicBoolean flag) {
1534	+	//         await(flag, LONG_DELAY_MS);
1535	+	//     }
1536	+
1537	+	//     /**
1538	+	//      * Spin-waits up to the specified timeout until flag becomes true.
1539	+	//      */
1540	+	//     public void await(AtomicBoolean flag, long timeoutMillis) {
1541	+	//         long startTime = System.nanoTime();
1542	+	//         while (!flag.get()) {
1543	+	//             if (millisElapsedSince(startTime) > timeoutMillis)
1544	+	//                 throw new AssertionFailedError("timed out");
1545	+	//             Thread.yield();
1546	+	//         }
1547	+	//     }
1548	+
1549		public static class NPETask implements Callable<String> {
1550		public String call() { throw new NullPointerException(); }
1551		}
#	Line 643 | Line 1556 | public class JSR166TestCase extends Test
1556
1557		public class ShortRunnable extends CheckedRunnable {
1558		protected void realRun() throws Throwable {
1559	<	Thread.sleep(SHORT_DELAY_MS);
1559	>	delay(SHORT_DELAY_MS);
1560		}
1561		}
1562
1563		public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1564		protected void realRun() throws InterruptedException {
1565	<	Thread.sleep(SHORT_DELAY_MS);
1565	>	delay(SHORT_DELAY_MS);
1566		}
1567		}
1568
1569		public class SmallRunnable extends CheckedRunnable {
1570		protected void realRun() throws Throwable {
1571	<	Thread.sleep(SMALL_DELAY_MS);
1571	>	delay(SMALL_DELAY_MS);
1572		}
1573		}
1574
1575		public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1576		protected void realRun() {
1577		try {
1578	<	Thread.sleep(SMALL_DELAY_MS);
1578	>	delay(SMALL_DELAY_MS);
1579		} catch (InterruptedException ok) {}
1580		}
1581		}
1582
1583		public class SmallCallable extends CheckedCallable {
1584		protected Object realCall() throws InterruptedException {
1585	<	Thread.sleep(SMALL_DELAY_MS);
1585	>	delay(SMALL_DELAY_MS);
1586		return Boolean.TRUE;
1587		}
1588		}
1589
677	–	public class SmallInterruptedRunnable extends CheckedInterruptedRunnable {
678	–	protected void realRun() throws InterruptedException {
679	–	Thread.sleep(SMALL_DELAY_MS);
680	–	}
681	–	}
682	–
1590		public class MediumRunnable extends CheckedRunnable {
1591		protected void realRun() throws Throwable {
1592	<	Thread.sleep(MEDIUM_DELAY_MS);
1592	>	delay(MEDIUM_DELAY_MS);
1593		}
1594		}
1595
1596		public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1597		protected void realRun() throws InterruptedException {
1598	<	Thread.sleep(MEDIUM_DELAY_MS);
1598	>	delay(MEDIUM_DELAY_MS);
1599		}
1600		}
1601
1602	+	public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1603	+	return new CheckedRunnable() {
1604	+	protected void realRun() {
1605	+	try {
1606	+	delay(timeoutMillis);
1607	+	} catch (InterruptedException ok) {}
1608	+	}};
1609	+	}
1610	+
1611		public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1612		protected void realRun() {
1613		try {
1614	<	Thread.sleep(MEDIUM_DELAY_MS);
1614	>	delay(MEDIUM_DELAY_MS);
1615		} catch (InterruptedException ok) {}
1616		}
1617		}
#	Line 703 | Line 1619 | public class JSR166TestCase extends Test
1619		public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1620		protected void realRun() {
1621		try {
1622	<	Thread.sleep(LONG_DELAY_MS);
1622	>	delay(LONG_DELAY_MS);
1623		} catch (InterruptedException ok) {}
1624		}
1625		}
#	Line 717 | Line 1633 | public class JSR166TestCase extends Test
1633		}
1634		}
1635
1636	+	public interface TrackedRunnable extends Runnable {
1637	+	boolean isDone();
1638	+	}
1639	+
1640	+	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1641	+	return new TrackedRunnable() {
1642	+	private volatile boolean done = false;
1643	+	public boolean isDone() { return done; }
1644	+	public void run() {
1645	+	try {
1646	+	delay(timeoutMillis);
1647	+	done = true;
1648	+	} catch (InterruptedException ok) {}
1649	+	}
1650	+	};
1651	+	}
1652	+
1653		public static class TrackedShortRunnable implements Runnable {
1654		public volatile boolean done = false;
1655		public void run() {
1656		try {
1657	<	Thread.sleep(SMALL_DELAY_MS);
1657	>	delay(SHORT_DELAY_MS);
1658	>	done = true;
1659	>	} catch (InterruptedException ok) {}
1660	>	}
1661	>	}
1662	>
1663	>	public static class TrackedSmallRunnable implements Runnable {
1664	>	public volatile boolean done = false;
1665	>	public void run() {
1666	>	try {
1667	>	delay(SMALL_DELAY_MS);
1668		done = true;
1669		} catch (InterruptedException ok) {}
1670		}
#	Line 731 | Line 1674 | public class JSR166TestCase extends Test
1674		public volatile boolean done = false;
1675		public void run() {
1676		try {
1677	<	Thread.sleep(MEDIUM_DELAY_MS);
1677	>	delay(MEDIUM_DELAY_MS);
1678		done = true;
1679		} catch (InterruptedException ok) {}
1680		}
#	Line 741 | Line 1684 | public class JSR166TestCase extends Test
1684		public volatile boolean done = false;
1685		public void run() {
1686		try {
1687	<	Thread.sleep(LONG_DELAY_MS);
1687	>	delay(LONG_DELAY_MS);
1688		done = true;
1689		} catch (InterruptedException ok) {}
1690		}
#	Line 758 | Line 1701 | public class JSR166TestCase extends Test
1701		public volatile boolean done = false;
1702		public Object call() {
1703		try {
1704	<	Thread.sleep(SMALL_DELAY_MS);
1704	>	delay(SMALL_DELAY_MS);
1705		done = true;
1706		} catch (InterruptedException ok) {}
1707		return Boolean.TRUE;
1708		}
1709		}
1710
1711	+	/**
1712	+	* Analog of CheckedRunnable for RecursiveAction
1713	+	*/
1714	+	public abstract class CheckedRecursiveAction extends RecursiveAction {
1715	+	protected abstract void realCompute() throws Throwable;
1716	+
1717	+	@Override protected final void compute() {
1718	+	try {
1719	+	realCompute();
1720	+	} catch (Throwable fail) {
1721	+	threadUnexpectedException(fail);
1722	+	}
1723	+	}
1724	+	}
1725	+
1726	+	/**
1727	+	* Analog of CheckedCallable for RecursiveTask
1728	+	*/
1729	+	public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1730	+	protected abstract T realCompute() throws Throwable;
1731	+
1732	+	@Override protected final T compute() {
1733	+	try {
1734	+	return realCompute();
1735	+	} catch (Throwable fail) {
1736	+	threadUnexpectedException(fail);
1737	+	return null;
1738	+	}
1739	+	}
1740	+	}
1741
1742		/**
1743		* For use as RejectedExecutionHandler in constructors
#	Line 774 | Line 1747 | public class JSR166TestCase extends Test
1747		ThreadPoolExecutor executor) {}
1748		}
1749
1750	+	/**
1751	+	* A CyclicBarrier that uses timed await and fails with
1752	+	* AssertionFailedErrors instead of throwing checked exceptions.
1753	+	*/
1754	+	public class CheckedBarrier extends CyclicBarrier {
1755	+	public CheckedBarrier(int parties) { super(parties); }
1756	+
1757	+	public int await() {
1758	+	try {
1759	+	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1760	+	} catch (TimeoutException timedOut) {
1761	+	throw new AssertionFailedError("timed out");
1762	+	} catch (Exception fail) {
1763	+	AssertionFailedError afe =
1764	+	new AssertionFailedError("Unexpected exception: " + fail);
1765	+	afe.initCause(fail);
1766	+	throw afe;
1767	+	}
1768	+	}
1769	+	}
1770	+
1771	+	void checkEmpty(BlockingQueue q) {
1772	+	try {
1773	+	assertTrue(q.isEmpty());
1774	+	assertEquals(0, q.size());
1775	+	assertNull(q.peek());
1776	+	assertNull(q.poll());
1777	+	assertNull(q.poll(0, MILLISECONDS));
1778	+	assertEquals(q.toString(), "[]");
1779	+	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1780	+	assertFalse(q.iterator().hasNext());
1781	+	try {
1782	+	q.element();
1783	+	shouldThrow();
1784	+	} catch (NoSuchElementException success) {}
1785	+	try {
1786	+	q.iterator().next();
1787	+	shouldThrow();
1788	+	} catch (NoSuchElementException success) {}
1789	+	try {
1790	+	q.remove();
1791	+	shouldThrow();
1792	+	} catch (NoSuchElementException success) {}
1793	+	} catch (InterruptedException fail) { threadUnexpectedException(fail); }
1794	+	}
1795	+
1796	+	void assertSerialEquals(Object x, Object y) {
1797	+	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1798	+	}
1799	+
1800	+	void assertNotSerialEquals(Object x, Object y) {
1801	+	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1802	+	}
1803	+
1804	+	byte[] serialBytes(Object o) {
1805	+	try {
1806	+	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1807	+	ObjectOutputStream oos = new ObjectOutputStream(bos);
1808	+	oos.writeObject(o);
1809	+	oos.flush();
1810	+	oos.close();
1811	+	return bos.toByteArray();
1812	+	} catch (Throwable fail) {
1813	+	threadUnexpectedException(fail);
1814	+	return new byte[0];
1815	+	}
1816	+	}
1817	+
1818	+	@SuppressWarnings("unchecked")
1819	+	<T> T serialClone(T o) {
1820	+	try {
1821	+	ObjectInputStream ois = new ObjectInputStream
1822	+	(new ByteArrayInputStream(serialBytes(o)));
1823	+	T clone = (T) ois.readObject();
1824	+	assertSame(o.getClass(), clone.getClass());
1825	+	return clone;
1826	+	} catch (Throwable fail) {
1827	+	threadUnexpectedException(fail);
1828	+	return null;
1829	+	}
1830	+	}
1831	+
1832	+	public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1833	+	Runnable... throwingActions) {
1834	+	for (Runnable throwingAction : throwingActions) {
1835	+	boolean threw = false;
1836	+	try { throwingAction.run(); }
1837	+	catch (Throwable t) {
1838	+	threw = true;
1839	+	if (!expectedExceptionClass.isInstance(t)) {
1840	+	AssertionFailedError afe =
1841	+	new AssertionFailedError
1842	+	("Expected " + expectedExceptionClass.getName() +
1843	+	", got " + t.getClass().getName());
1844	+	afe.initCause(t);
1845	+	threadUnexpectedException(afe);
1846	+	}
1847	+	}
1848	+	if (!threw)
1849	+	shouldThrow(expectedExceptionClass.getName());
1850	+	}
1851	+	}
1852	+
1853	+	public void assertIteratorExhausted(Iterator<?> it) {
1854	+	try {
1855	+	it.next();
1856	+	shouldThrow();
1857	+	} catch (NoSuchElementException success) {}
1858	+	assertFalse(it.hasNext());
1859	+	}
1860	+
1861	+	public <T> Callable<T> callableThrowing(final Exception ex) {
1862	+	return new Callable<T>() { public T call() throws Exception { throw ex; }};
1863	+	}
1864	+
1865	+	public Runnable runnableThrowing(final RuntimeException ex) {
1866	+	return new Runnable() { public void run() { throw ex; }};
1867	+	}
1868	+
1869	+	/** A reusable thread pool to be shared by tests. */
1870	+	static final ExecutorService cachedThreadPool =
1871	+	new ThreadPoolExecutor(0, Integer.MAX_VALUE,
1872	+	1000L, MILLISECONDS,
1873	+	new SynchronousQueue<Runnable>());
1874	+
1875		}

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