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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.24 by dl, Thu Jan 20 00:39:13 2005 UTC vs.
Revision 1.196 by jsr166, Fri Jun 17 19:00:48 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
5	<	* Other contributors include Andrew Wright, Jeffrey Hayes,
6	<	* Pat Fisher, Mike Judd.
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.*;
12	<	import java.io.*;
13	<	import java.security.*;
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 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,
79		* utility methods and classes, as well as a simple framework for
80		* helping to make sure that assertions failing in generated threads
81		* cause the associated test that generated them to itself fail (which
82	<	* JUnit doe not otherwise arrange).  The rules for creating such
82	>	* JUnit does not otherwise arrange).  The rules for creating such
83		* tests are:
84		*
85		* <ol>
86		*
87	<	* <li> All assertions in code running in generated threads must use
88	<	* the forms {@link #threadFail} , {@link #threadAssertTrue} {@link
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	<	* <tt>fail</tt>, <tt>assertTrue</tt>, etc.) It is OK (but 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
96	<	* to invoke <tt>super.setUp</tt> and <tt>super.tearDown</tt> within
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 <tt>
101	<	* SHORT_DELAY_MS</tt>, <tt> SMALL_DELAY_MS</tt>, <tt> MEDIUM_DELAY_MS</tt>,
102	<	* <tt> LONG_DELAY_MS</tt>. The idea here is that a SHORT is always
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},
102	>	* {@code LONG_DELAY_MS}. The idea here is that a SHORT is always
103		* discriminable from zero time, and always allows enough time for the
104		* small amounts of computation (creating a thread, calling a few
105		* methods, etc) needed to reach a timeout point. Similarly, a SMALL
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
112	<	* method (or <tt>fail</tt> to do so) before returning from the
113	<	* method. The <tt> joinPool</tt> method can be used to do this when
114	<	* using Executors.</li>
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.
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
127	<	* isolation.</li>
128	<	*
67	<	* <li> The documentation style for testcases is to provide as javadoc
126	>	* cover multiple methods when they cannot be tested in isolation.
127	>	*
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 <tt>main</tt> 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		*/
149		public class JSR166TestCase extends TestCase {
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	+	* 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	<	* Runs all JSR166 unit tests using junit.textui.TestRunner
207	<	*/
208	<	public static void main (String[] args) {
209	<	int iters = 1;
210	<	if (args.length > 0)
211	<	iters = Integer.parseInt(args[0]);
212	<	Test s = suite();
213	<	for (int i = 0; i < iters; ++i) {
214	<	junit.textui.TestRunner.run (s);
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	>	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
430	<	*/
431	<	public static Test suite ( ) {
432	<	TestSuite suite = new TestSuite("JSR166 Unit Tests");
433	<
434	<	suite.addTest(new TestSuite(AbstractExecutorServiceTest.class));
435	<	suite.addTest(new TestSuite(AbstractQueueTest.class));
436	<	suite.addTest(new TestSuite(AbstractQueuedSynchronizerTest.class));
437	<	suite.addTest(new TestSuite(ArrayBlockingQueueTest.class));
438	<	suite.addTest(new TestSuite(ArrayDequeTest.class));
439	<	suite.addTest(new TestSuite(AtomicBooleanTest.class));
440	<	suite.addTest(new TestSuite(AtomicIntegerArrayTest.class));
441	<	suite.addTest(new TestSuite(AtomicIntegerFieldUpdaterTest.class));
442	<	suite.addTest(new TestSuite(AtomicIntegerTest.class));
443	<	suite.addTest(new TestSuite(AtomicLongArrayTest.class));
444	<	suite.addTest(new TestSuite(AtomicLongFieldUpdaterTest.class));
445	<	suite.addTest(new TestSuite(AtomicLongTest.class));
446	<	suite.addTest(new TestSuite(AtomicMarkableReferenceTest.class));
447	<	suite.addTest(new TestSuite(AtomicReferenceArrayTest.class));
448	<	suite.addTest(new TestSuite(AtomicReferenceFieldUpdaterTest.class));
449	<	suite.addTest(new TestSuite(AtomicReferenceTest.class));
450	<	suite.addTest(new TestSuite(AtomicStampedReferenceTest.class));
451	<	suite.addTest(new TestSuite(ConcurrentHashMapTest.class));
452	<	suite.addTest(new TestSuite(ConcurrentLinkedQueueTest.class));
453	<	suite.addTest(new TestSuite(ConcurrentSkipListMapTest.class));
454	<	suite.addTest(new TestSuite(ConcurrentSkipListSubMapTest.class));
455	<	suite.addTest(new TestSuite(ConcurrentSkipListSetTest.class));
456	<	suite.addTest(new TestSuite(ConcurrentSkipListSubSetTest.class));
457	<	suite.addTest(new TestSuite(CopyOnWriteArrayListTest.class));
458	<	suite.addTest(new TestSuite(CopyOnWriteArraySetTest.class));
459	<	suite.addTest(new TestSuite(CountDownLatchTest.class));
460	<	suite.addTest(new TestSuite(CyclicBarrierTest.class));
461	<	suite.addTest(new TestSuite(DelayQueueTest.class));
462	<	suite.addTest(new TestSuite(ExchangerTest.class));
463	<	suite.addTest(new TestSuite(ExecutorsTest.class));
464	<	suite.addTest(new TestSuite(ExecutorCompletionServiceTest.class));
465	<	suite.addTest(new TestSuite(FutureTaskTest.class));
466	<	suite.addTest(new TestSuite(LinkedBlockingDequeTest.class));
467	<	suite.addTest(new TestSuite(LinkedBlockingQueueTest.class));
468	<	suite.addTest(new TestSuite(LinkedListTest.class));
469	<	suite.addTest(new TestSuite(LockSupportTest.class));
470	<	suite.addTest(new TestSuite(PriorityBlockingQueueTest.class));
471	<	suite.addTest(new TestSuite(PriorityQueueTest.class));
472	<	suite.addTest(new TestSuite(ReentrantLockTest.class));
473	<	suite.addTest(new TestSuite(ReentrantReadWriteLockTest.class));
474	<	suite.addTest(new TestSuite(ScheduledExecutorTest.class));
475	<	suite.addTest(new TestSuite(SemaphoreTest.class));
476	<	suite.addTest(new TestSuite(SynchronousQueueTest.class));
477	<	suite.addTest(new TestSuite(SystemTest.class));
478	<	suite.addTest(new TestSuite(ThreadLocalTest.class));
479	<	suite.addTest(new TestSuite(ThreadPoolExecutorTest.class));
480	<	suite.addTest(new TestSuite(ThreadTest.class));
481	<	suite.addTest(new TestSuite(TimeUnitTest.class));
482	<	suite.addTest(new TestSuite(TreeMapTest.class));
483	<	suite.addTest(new TestSuite(TreeSetTest.class));
484	<
429	>	* Collects all JSR166 unit tests as one suite.
430	>	*/
431	>	public static Test suite() {
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
171	–
607		/**
608	<	* Return the shortest timed delay. This could
609	<	* be reimplemented to use for example a Property.
610	<	*/
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
180	–
617		/**
618	<	* Set delays as multiples of SHORT_DELAY.
618	>	* Sets delays as multiples of SHORT_DELAY.
619		*/
620	<	protected  void setDelays() {
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	<	* Initialize 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 setUp() {
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	>	* 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	<	* Trigger test case failure if any thread assertions have failed
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
730	<	*/
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
745	<	*/
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) {
225	<	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
759	<	*/
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) {
236	<	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
773	<	*/
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) {
247	<	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
787	<	*/
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) {
258	<	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
801	<	*/
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))) {
269	<	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	<	* threadFail with message "should throw exception"
816	<	*/
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	>	try {
821	>	assertSame(x, y);
822	>	} catch (AssertionFailedError fail) {
823	>	threadRecordFailure(fail);
824	>	throw fail;
825	>	}
826	>	}
827	>
828	>	/**
829	>	* Calls threadFail with message "should throw exception".
830	>	*/
831		public void threadShouldThrow() {
832	<	threadFailed = true;
833	<	fail("should throw exception");
832	>	threadFail("should throw exception");
833	>	}
834	>
835	>	/**
836	>	* Calls threadFail with message "should throw" + exceptionName.
837	>	*/
838	>	public void threadShouldThrow(String exceptionName) {
839	>	threadFail("should throw " + exceptionName);
840		}
841
842		/**
843	<	* threadFail with message "Unexpected exception"
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() {
848	<	threadFailed = true;
849	<	fail("Unexpected exception");
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	+	* 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	+	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	+	* Allows use of try-with-resources with per-test thread pools.
883	+	*/
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, TimeUnit.MILLISECONDS));
942	<	} catch(SecurityException ok) {
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 exception");
953	>	} catch (InterruptedException fail) {
954	>	threadFail("Unexpected InterruptedException");
955	>	}
956	>	}
957	>
958	>	/** Like Runnable, but with the freedom to throw anything */
959	>	interface Action { public void run() throws Throwable; }
960	>
961	>	/**
962	>	* Runs all the given actions in parallel, failing if any fail.
963	>	* Useful for running multiple variants of tests that are
964	>	* necessarily individually slow because they must block.
965	>	*/
966	>	void testInParallel(Action ... actions) {
967	>	ExecutorService pool = Executors.newCachedThreadPool();
968	>	try (PoolCleaner cleaner = cleaner(pool)) {
969	>	ArrayList<Future<?>> futures = new ArrayList<>(actions.length);
970	>	for (final Action action : actions)
971	>	futures.add(pool.submit(new CheckedRunnable() {
972	>	public void realRun() throws Throwable { action.run();}}));
973	>	for (Future<?> future : futures)
974	>	try {
975	>	assertNull(future.get(LONG_DELAY_MS, MILLISECONDS));
976	>	} catch (ExecutionException ex) {
977	>	threadUnexpectedException(ex.getCause());
978	>	} catch (Exception ex) {
979	>	threadUnexpectedException(ex);
980	>	}
981		}
982		}
983
984	+	/**
985	+	* A debugging tool to print stack traces of most threads, as jstack does.
986	+	* Uninteresting threads are filtered out.
987	+	*/
988	+	static void dumpTestThreads() {
989	+	SecurityManager sm = System.getSecurityManager();
990	+	if (sm != null) {
991	+	try {
992	+	System.setSecurityManager(null);
993	+	} catch (SecurityException giveUp) {
994	+	return;
995	+	}
996	+	}
997	+
998	+	ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
999	+	System.err.println("------ stacktrace dump start ------");
1000	+	for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) {
1001	+	String name = info.getThreadName();
1002	+	if ("Signal Dispatcher".equals(name))
1003	+	continue;
1004	+	if ("Reference Handler".equals(name)
1005	+	&& info.getLockName().startsWith("java.lang.ref.Reference$Lock"))
1006	+	continue;
1007	+	if ("Finalizer".equals(name)
1008	+	&& info.getLockName().startsWith("java.lang.ref.ReferenceQueue$Lock"))
1009	+	continue;
1010	+	if ("checkForWedgedTest".equals(name))
1011	+	continue;
1012	+	System.err.print(info);
1013	+	}
1014	+	System.err.println("------ stacktrace dump end ------");
1015	+
1016	+	if (sm != null) System.setSecurityManager(sm);
1017	+	}
1018	+
1019	+	/**
1020	+	* Checks that thread does not terminate within the default
1021	+	* millisecond delay of {@code timeoutMillis()}.
1022	+	*/
1023	+	void assertThreadStaysAlive(Thread thread) {
1024	+	assertThreadStaysAlive(thread, timeoutMillis());
1025	+	}
1026	+
1027	+	/**
1028	+	* Checks that thread does not terminate within the given millisecond delay.
1029	+	*/
1030	+	void assertThreadStaysAlive(Thread thread, long millis) {
1031	+	try {
1032	+	// No need to optimize the failing case via Thread.join.
1033	+	delay(millis);
1034	+	assertTrue(thread.isAlive());
1035	+	} catch (InterruptedException fail) {
1036	+	threadFail("Unexpected InterruptedException");
1037	+	}
1038	+	}
1039
1040		/**
1041	<	* fail with message "should throw exception"
1042	<	*/
1041	>	* Checks that the threads do not terminate within the default
1042	>	* millisecond delay of {@code timeoutMillis()}.
1043	>	*/
1044	>	void assertThreadsStayAlive(Thread... threads) {
1045	>	assertThreadsStayAlive(timeoutMillis(), threads);
1046	>	}
1047	>
1048	>	/**
1049	>	* Checks that the threads do not terminate within the given millisecond delay.
1050	>	*/
1051	>	void assertThreadsStayAlive(long millis, Thread... threads) {
1052	>	try {
1053	>	// No need to optimize the failing case via Thread.join.
1054	>	delay(millis);
1055	>	for (Thread thread : threads)
1056	>	assertTrue(thread.isAlive());
1057	>	} catch (InterruptedException fail) {
1058	>	threadFail("Unexpected InterruptedException");
1059	>	}
1060	>	}
1061	>
1062	>	/**
1063	>	* Checks that future.get times out, with the default timeout of
1064	>	* {@code timeoutMillis()}.
1065	>	*/
1066	>	void assertFutureTimesOut(Future future) {
1067	>	assertFutureTimesOut(future, timeoutMillis());
1068	>	}
1069	>
1070	>	/**
1071	>	* Checks that future.get times out, with the given millisecond timeout.
1072	>	*/
1073	>	void assertFutureTimesOut(Future future, long timeoutMillis) {
1074	>	long startTime = System.nanoTime();
1075	>	try {
1076	>	future.get(timeoutMillis, MILLISECONDS);
1077	>	shouldThrow();
1078	>	} catch (TimeoutException success) {
1079	>	} catch (Exception fail) {
1080	>	threadUnexpectedException(fail);
1081	>	} finally { future.cancel(true); }
1082	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
1083	>	}
1084	>
1085	>	/**
1086	>	* Fails with message "should throw exception".
1087	>	*/
1088		public void shouldThrow() {
1089		fail("Should throw exception");
1090		}
1091
1092		/**
1093	<	* fail with message "Unexpected exception"
1093	>	* Fails with message "should throw " + exceptionName.
1094		*/
1095	<	public void unexpectedException() {
1096	<	fail("Unexpected exception");
1095	>	public void shouldThrow(String exceptionName) {
1096	>	fail("Should throw " + exceptionName);
1097		}
1098
320	–
1099		/**
1100		* The number of elements to place in collections, arrays, etc.
1101		*/
1102	<	static final int SIZE = 20;
1102	>	public static final int SIZE = 20;
1103
1104		// Some convenient Integer constants
1105
1106	<	static final Integer zero = new Integer(0);
1107	<	static final Integer one = new Integer(1);
1108	<	static final Integer two = new Integer(2);
1109	<	static final Integer three  = new Integer(3);
1110	<	static final Integer four  = new Integer(4);
1111	<	static final Integer five  = new Integer(5);
1112	<	static final Integer six = new Integer(6);
1113	<	static final Integer seven = new Integer(7);
1114	<	static final Integer eight = new Integer(8);
1115	<	static final Integer nine = new Integer(9);
1116	<	static final Integer m1  = new Integer(-1);
1117	<	static final Integer m2  = new Integer(-2);
1118	<	static final Integer m3  = new Integer(-3);
1119	<	static final Integer m4 = new Integer(-4);
1120	<	static final Integer m5 = new Integer(-5);
1121	<	static final Integer m10 = new Integer(-10);
1106	>	public static final Integer zero  = new Integer(0);
1107	>	public static final Integer one   = new Integer(1);
1108	>	public static final Integer two   = new Integer(2);
1109	>	public static final Integer three = new Integer(3);
1110	>	public static final Integer four  = new Integer(4);
1111	>	public static final Integer five  = new Integer(5);
1112	>	public static final Integer six   = new Integer(6);
1113	>	public static final Integer seven = new Integer(7);
1114	>	public static final Integer eight = new Integer(8);
1115	>	public static final Integer nine  = new Integer(9);
1116	>	public static final Integer m1  = new Integer(-1);
1117	>	public static final Integer m2  = new Integer(-2);
1118	>	public static final Integer m3  = new Integer(-3);
1119	>	public static final Integer m4  = new Integer(-4);
1120	>	public static final Integer m5  = new Integer(-5);
1121	>	public static final Integer m6  = new Integer(-6);
1122	>	public static final Integer m10 = new Integer(-10);
1123	>
1124	>	/**
1125	>	* Runs Runnable r with a security policy that permits precisely
1126	>	* the specified permissions.  If there is no current security
1127	>	* manager, the runnable is run twice, both with and without a
1128	>	* security manager.  We require that any security manager permit
1129	>	* getPolicy/setPolicy.
1130	>	*/
1131	>	public void runWithPermissions(Runnable r, Permission... permissions) {
1132	>	SecurityManager sm = System.getSecurityManager();
1133	>	if (sm == null) {
1134	>	r.run();
1135	>	}
1136	>	runWithSecurityManagerWithPermissions(r, permissions);
1137	>	}
1138
1139	+	/**
1140	+	* Runs Runnable r with a security policy that permits precisely
1141	+	* the specified permissions.  If there is no current security
1142	+	* manager, a temporary one is set for the duration of the
1143	+	* Runnable.  We require that any security manager permit
1144	+	* getPolicy/setPolicy.
1145	+	*/
1146	+	public void runWithSecurityManagerWithPermissions(Runnable r,
1147	+	Permission... permissions) {
1148	+	SecurityManager sm = System.getSecurityManager();
1149	+	if (sm == null) {
1150	+	Policy savedPolicy = Policy.getPolicy();
1151	+	try {
1152	+	Policy.setPolicy(permissivePolicy());
1153	+	System.setSecurityManager(new SecurityManager());
1154	+	runWithSecurityManagerWithPermissions(r, permissions);
1155	+	} finally {
1156	+	System.setSecurityManager(null);
1157	+	Policy.setPolicy(savedPolicy);
1158	+	}
1159	+	} else {
1160	+	Policy savedPolicy = Policy.getPolicy();
1161	+	AdjustablePolicy policy = new AdjustablePolicy(permissions);
1162	+	Policy.setPolicy(policy);
1163	+
1164	+	try {
1165	+	r.run();
1166	+	} finally {
1167	+	policy.addPermission(new SecurityPermission("setPolicy"));
1168	+	Policy.setPolicy(savedPolicy);
1169	+	}
1170	+	}
1171	+	}
1172	+
1173	+	/**
1174	+	* Runs a runnable without any permissions.
1175	+	*/
1176	+	public void runWithoutPermissions(Runnable r) {
1177	+	runWithPermissions(r);
1178	+	}
1179
1180		/**
1181		* A security policy where new permissions can be dynamically added
1182		* or all cleared.
1183		*/
1184	<	static class AdjustablePolicy extends java.security.Policy {
1184	>	public static class AdjustablePolicy extends java.security.Policy {
1185		Permissions perms = new Permissions();
1186	<	AdjustablePolicy() { }
1186	>	AdjustablePolicy(Permission... permissions) {
1187	>	for (Permission permission : permissions)
1188	>	perms.add(permission);
1189	>	}
1190		void addPermission(Permission perm) { perms.add(perm); }
1191		void clearPermissions() { perms = new Permissions(); }
1192	<	public PermissionCollection getPermissions(CodeSource cs) {
1193	<	return perms;
1194	<	}
1195	<	public PermissionCollection getPermissions(ProtectionDomain pd) {
1196	<	return perms;
1197	<	}
1198	<	public boolean implies(ProtectionDomain pd, Permission p) {
1199	<	return perms.implies(p);
1200	<	}
1201	<	public void refresh() {}
1192	>	public PermissionCollection getPermissions(CodeSource cs) {
1193	>	return perms;
1194	>	}
1195	>	public PermissionCollection getPermissions(ProtectionDomain pd) {
1196	>	return perms;
1197	>	}
1198	>	public boolean implies(ProtectionDomain pd, Permission p) {
1199	>	return perms.implies(p);
1200	>	}
1201	>	public void refresh() {}
1202	>	public String toString() {
1203	>	List<Permission> ps = new ArrayList<Permission>();
1204	>	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
1205	>	ps.add(e.nextElement());
1206	>	return "AdjustablePolicy with permissions " + ps;
1207	>	}
1208		}
1209
1210	+	/**
1211	+	* Returns a policy containing all the permissions we ever need.
1212	+	*/
1213	+	public static Policy permissivePolicy() {
1214	+	return new AdjustablePolicy
1215	+	// Permissions j.u.c. needs directly
1216	+	(new RuntimePermission("modifyThread"),
1217	+	new RuntimePermission("getClassLoader"),
1218	+	new RuntimePermission("setContextClassLoader"),
1219	+	// Permissions needed to change permissions!
1220	+	new SecurityPermission("getPolicy"),
1221	+	new SecurityPermission("setPolicy"),
1222	+	new RuntimePermission("setSecurityManager"),
1223	+	// Permissions needed by the junit test harness
1224	+	new RuntimePermission("accessDeclaredMembers"),
1225	+	new PropertyPermission("*", "read"),
1226	+	new java.io.FilePermission("<<ALL FILES>>", "read"));
1227	+	}
1228
1229	<	// Some convenient Runnable classes
1229	>	/**
1230	>	* Sleeps until the given time has elapsed.
1231	>	* Throws AssertionFailedError if interrupted.
1232	>	*/
1233	>	void sleep(long millis) {
1234	>	try {
1235	>	delay(millis);
1236	>	} catch (InterruptedException fail) {
1237	>	AssertionFailedError afe =
1238	>	new AssertionFailedError("Unexpected InterruptedException");
1239	>	afe.initCause(fail);
1240	>	throw afe;
1241	>	}
1242	>	}
1243
1244	<	static class NoOpRunnable implements Runnable {
1245	<	public void run() {}
1244	>	/**
1245	>	* Spin-waits up to the specified number of milliseconds for the given
1246	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1247	>	*/
1248	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1249	>	long startTime = System.nanoTime();
1250	>	for (;;) {
1251	>	Thread.State s = thread.getState();
1252	>	if (s == Thread.State.BLOCKED ||
1253	>	s == Thread.State.WAITING ||
1254	>	s == Thread.State.TIMED_WAITING)
1255	>	return;
1256	>	else if (s == Thread.State.TERMINATED)
1257	>	fail("Unexpected thread termination");
1258	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
1259	>	threadAssertTrue(thread.isAlive());
1260	>	return;
1261	>	}
1262	>	Thread.yield();
1263	>	}
1264		}
1265
1266	<	static class NoOpCallable implements Callable {
1267	<	public Object call() { return Boolean.TRUE; }
1266	>	/**
1267	>	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
1268	>	* state: BLOCKED, WAITING, or TIMED_WAITING.
1269	>	*/
1270	>	void waitForThreadToEnterWaitState(Thread thread) {
1271	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
1272	>	}
1273	>
1274	>	/**
1275	>	* Returns the number of milliseconds since time given by
1276	>	* startNanoTime, which must have been previously returned from a
1277	>	* call to {@link System#nanoTime()}.
1278	>	*/
1279	>	static long millisElapsedSince(long startNanoTime) {
1280	>	return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
1281		}
1282
1283	<	static final String TEST_STRING = "a test string";
1283	>	//     void assertTerminatesPromptly(long timeoutMillis, Runnable r) {
1284	>	//         long startTime = System.nanoTime();
1285	>	//         try {
1286	>	//             r.run();
1287	>	//         } catch (Throwable fail) { threadUnexpectedException(fail); }
1288	>	//         if (millisElapsedSince(startTime) > timeoutMillis/2)
1289	>	//             throw new AssertionFailedError("did not return promptly");
1290	>	//     }
1291	>
1292	>	//     void assertTerminatesPromptly(Runnable r) {
1293	>	//         assertTerminatesPromptly(LONG_DELAY_MS/2, r);
1294	>	//     }
1295
1296	<	static class StringTask implements Callable<String> {
1297	<	public String call() { return TEST_STRING; }
1296	>	/**
1297	>	* Checks that timed f.get() returns the expected value, and does not
1298	>	* wait for the timeout to elapse before returning.
1299	>	*/
1300	>	<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
1301	>	long startTime = System.nanoTime();
1302	>	try {
1303	>	assertEquals(expectedValue, f.get(timeoutMillis, MILLISECONDS));
1304	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
1305	>	if (millisElapsedSince(startTime) > timeoutMillis/2)
1306	>	throw new AssertionFailedError("timed get did not return promptly");
1307		}
1308
1309	<	static class NPETask implements Callable<String> {
1310	<	public String call() { throw new NullPointerException(); }
1309	>	<T> void checkTimedGet(Future<T> f, T expectedValue) {
1310	>	checkTimedGet(f, expectedValue, LONG_DELAY_MS);
1311		}
1312
1313	<	static class CallableOne implements Callable<Integer> {
1314	<	public Integer call() { return one; }
1313	>	/**
1314	>	* Returns a new started daemon Thread running the given runnable.
1315	>	*/
1316	>	Thread newStartedThread(Runnable runnable) {
1317	>	Thread t = new Thread(runnable);
1318	>	t.setDaemon(true);
1319	>	t.start();
1320	>	return t;
1321		}
1322
1323	<	class ShortRunnable implements Runnable {
1324	<	public void run() {
1325	<	try {
1326	<	Thread.sleep(SHORT_DELAY_MS);
1327	<	}
1328	<	catch(Exception e) {
1329	<	threadUnexpectedException();
1323	>	/**
1324	>	* Waits for the specified time (in milliseconds) for the thread
1325	>	* to terminate (using {@link Thread#join(long)}), else interrupts
1326	>	* the thread (in the hope that it may terminate later) and fails.
1327	>	*/
1328	>	void awaitTermination(Thread t, long timeoutMillis) {
1329	>	try {
1330	>	t.join(timeoutMillis);
1331	>	} catch (InterruptedException fail) {
1332	>	threadUnexpectedException(fail);
1333	>	} finally {
1334	>	if (t.getState() != Thread.State.TERMINATED) {
1335	>	t.interrupt();
1336	>	threadFail("timed out waiting for thread to terminate");
1337		}
1338		}
1339		}
1340
1341	<	class ShortInterruptedRunnable implements Runnable {
1342	<	public void run() {
1341	>	/**
1342	>	* Waits for LONG_DELAY_MS milliseconds for the thread to
1343	>	* terminate (using {@link Thread#join(long)}), else interrupts
1344	>	* the thread (in the hope that it may terminate later) and fails.
1345	>	*/
1346	>	void awaitTermination(Thread t) {
1347	>	awaitTermination(t, LONG_DELAY_MS);
1348	>	}
1349	>
1350	>	// Some convenient Runnable classes
1351	>
1352	>	public abstract class CheckedRunnable implements Runnable {
1353	>	protected abstract void realRun() throws Throwable;
1354	>
1355	>	public final void run() {
1356		try {
1357	<	Thread.sleep(SHORT_DELAY_MS);
1358	<	threadShouldThrow();
1359	<	}
409	<	catch(InterruptedException success) {
1357	>	realRun();
1358	>	} catch (Throwable fail) {
1359	>	threadUnexpectedException(fail);
1360		}
1361		}
1362		}
1363
1364	<	class SmallRunnable implements Runnable {
1365	<	public void run() {
1364	>	public abstract class RunnableShouldThrow implements Runnable {
1365	>	protected abstract void realRun() throws Throwable;
1366	>
1367	>	final Class<?> exceptionClass;
1368	>
1369	>	<T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) {
1370	>	this.exceptionClass = exceptionClass;
1371	>	}
1372	>
1373	>	public final void run() {
1374		try {
1375	<	Thread.sleep(SMALL_DELAY_MS);
1376	<	}
1377	<	catch(Exception e) {
1378	<	threadUnexpectedException();
1375	>	realRun();
1376	>	threadShouldThrow(exceptionClass.getSimpleName());
1377	>	} catch (Throwable t) {
1378	>	if (! exceptionClass.isInstance(t))
1379	>	threadUnexpectedException(t);
1380		}
1381		}
1382		}
1383
1384	<	class SmallPossiblyInterruptedRunnable implements Runnable {
1385	<	public void run() {
1384	>	public abstract class ThreadShouldThrow extends Thread {
1385	>	protected abstract void realRun() throws Throwable;
1386	>
1387	>	final Class<?> exceptionClass;
1388	>
1389	>	<T extends Throwable> ThreadShouldThrow(Class<T> exceptionClass) {
1390	>	this.exceptionClass = exceptionClass;
1391	>	}
1392	>
1393	>	public final void run() {
1394		try {
1395	<	Thread.sleep(SMALL_DELAY_MS);
1396	<	}
1397	<	catch(Exception e) {
1395	>	realRun();
1396	>	threadShouldThrow(exceptionClass.getSimpleName());
1397	>	} catch (Throwable t) {
1398	>	if (! exceptionClass.isInstance(t))
1399	>	threadUnexpectedException(t);
1400		}
1401		}
1402		}
1403
1404	<	class SmallCallable implements Callable {
1405	<	public Object call() {
1404	>	public abstract class CheckedInterruptedRunnable implements Runnable {
1405	>	protected abstract void realRun() throws Throwable;
1406	>
1407	>	public final void run() {
1408		try {
1409	<	Thread.sleep(SMALL_DELAY_MS);
1409	>	realRun();
1410	>	threadShouldThrow("InterruptedException");
1411	>	} catch (InterruptedException success) {
1412	>	threadAssertFalse(Thread.interrupted());
1413	>	} catch (Throwable fail) {
1414	>	threadUnexpectedException(fail);
1415		}
440	–	catch(Exception e) {
441	–	threadUnexpectedException();
442	–	}
443	–	return Boolean.TRUE;
1416		}
1417		}
1418
1419	<	class SmallInterruptedRunnable implements Runnable {
1420	<	public void run() {
1419	>	public abstract class CheckedCallable<T> implements Callable<T> {
1420	>	protected abstract T realCall() throws Throwable;
1421	>
1422	>	public final T call() {
1423		try {
1424	<	Thread.sleep(SMALL_DELAY_MS);
1425	<	threadShouldThrow();
1426	<	}
1427	<	catch(InterruptedException success) {
1424	>	return realCall();
1425	>	} catch (Throwable fail) {
1426	>	threadUnexpectedException(fail);
1427	>	return null;
1428		}
1429		}
1430		}
1431
1432	+	public abstract class CheckedInterruptedCallable<T>
1433	+	implements Callable<T> {
1434	+	protected abstract T realCall() throws Throwable;
1435
1436	<	class MediumRunnable implements Runnable {
460	<	public void run() {
1436	>	public final T call() {
1437		try {
1438	<	Thread.sleep(MEDIUM_DELAY_MS);
1439	<	}
1440	<	catch(Exception e) {
1441	<	threadUnexpectedException();
1438	>	T result = realCall();
1439	>	threadShouldThrow("InterruptedException");
1440	>	return result;
1441	>	} catch (InterruptedException success) {
1442	>	threadAssertFalse(Thread.interrupted());
1443	>	} catch (Throwable fail) {
1444	>	threadUnexpectedException(fail);
1445		}
1446	+	return null;
1447		}
1448		}
1449
1450	<	class MediumInterruptedRunnable implements Runnable {
1451	<	public void run() {
1450	>	public static class NoOpRunnable implements Runnable {
1451	>	public void run() {}
1452	>	}
1453	>
1454	>	public static class NoOpCallable implements Callable {
1455	>	public Object call() { return Boolean.TRUE; }
1456	>	}
1457	>
1458	>	public static final String TEST_STRING = "a test string";
1459	>
1460	>	public static class StringTask implements Callable<String> {
1461	>	final String value;
1462	>	public StringTask() { this(TEST_STRING); }
1463	>	public StringTask(String value) { this.value = value; }
1464	>	public String call() { return value; }
1465	>	}
1466	>
1467	>	public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
1468	>	return new CheckedCallable<String>() {
1469	>	protected String realCall() {
1470	>	try {
1471	>	latch.await();
1472	>	} catch (InterruptedException quittingTime) {}
1473	>	return TEST_STRING;
1474	>	}};
1475	>	}
1476	>
1477	>	public Runnable countDowner(final CountDownLatch latch) {
1478	>	return new CheckedRunnable() {
1479	>	public void realRun() throws InterruptedException {
1480	>	latch.countDown();
1481	>	}};
1482	>	}
1483	>
1484	>	class LatchAwaiter extends CheckedRunnable {
1485	>	static final int NEW = 0;
1486	>	static final int RUNNING = 1;
1487	>	static final int DONE = 2;
1488	>	final CountDownLatch latch;
1489	>	int state = NEW;
1490	>	LatchAwaiter(CountDownLatch latch) { this.latch = latch; }
1491	>	public void realRun() throws InterruptedException {
1492	>	state = 1;
1493	>	await(latch);
1494	>	state = 2;
1495	>	}
1496	>	}
1497	>
1498	>	public LatchAwaiter awaiter(CountDownLatch latch) {
1499	>	return new LatchAwaiter(latch);
1500	>	}
1501	>
1502	>	public void await(CountDownLatch latch, long timeoutMillis) {
1503	>	try {
1504	>	if (!latch.await(timeoutMillis, MILLISECONDS))
1505	>	fail("timed out waiting for CountDownLatch for "
1506	>	+ (timeoutMillis/1000) + " sec");
1507	>	} catch (Throwable fail) {
1508	>	threadUnexpectedException(fail);
1509	>	}
1510	>	}
1511	>
1512	>	public void await(CountDownLatch latch) {
1513	>	await(latch, LONG_DELAY_MS);
1514	>	}
1515	>
1516	>	public void await(Semaphore semaphore) {
1517	>	try {
1518	>	if (!semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS))
1519	>	fail("timed out waiting for Semaphore for "
1520	>	+ (LONG_DELAY_MS/1000) + " sec");
1521	>	} catch (Throwable fail) {
1522	>	threadUnexpectedException(fail);
1523	>	}
1524	>	}
1525	>
1526	>	//     /**
1527	>	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1528	>	//      */
1529	>	//     public void await(AtomicBoolean flag) {
1530	>	//         await(flag, LONG_DELAY_MS);
1531	>	//     }
1532	>
1533	>	//     /**
1534	>	//      * Spin-waits up to the specified timeout until flag becomes true.
1535	>	//      */
1536	>	//     public void await(AtomicBoolean flag, long timeoutMillis) {
1537	>	//         long startTime = System.nanoTime();
1538	>	//         while (!flag.get()) {
1539	>	//             if (millisElapsedSince(startTime) > timeoutMillis)
1540	>	//                 throw new AssertionFailedError("timed out");
1541	>	//             Thread.yield();
1542	>	//         }
1543	>	//     }
1544	>
1545	>	public static class NPETask implements Callable<String> {
1546	>	public String call() { throw new NullPointerException(); }
1547	>	}
1548	>
1549	>	public static class CallableOne implements Callable<Integer> {
1550	>	public Integer call() { return one; }
1551	>	}
1552	>
1553	>	public class ShortRunnable extends CheckedRunnable {
1554	>	protected void realRun() throws Throwable {
1555	>	delay(SHORT_DELAY_MS);
1556	>	}
1557	>	}
1558	>
1559	>	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1560	>	protected void realRun() throws InterruptedException {
1561	>	delay(SHORT_DELAY_MS);
1562	>	}
1563	>	}
1564	>
1565	>	public class SmallRunnable extends CheckedRunnable {
1566	>	protected void realRun() throws Throwable {
1567	>	delay(SMALL_DELAY_MS);
1568	>	}
1569	>	}
1570	>
1571	>	public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1572	>	protected void realRun() {
1573		try {
1574	<	Thread.sleep(MEDIUM_DELAY_MS);
1575	<	threadShouldThrow();
475	<	}
476	<	catch(InterruptedException success) {
477	<	}
1574	>	delay(SMALL_DELAY_MS);
1575	>	} catch (InterruptedException ok) {}
1576		}
1577		}
1578
1579	<	class MediumPossiblyInterruptedRunnable implements Runnable {
1580	<	public void run() {
1579	>	public class SmallCallable extends CheckedCallable {
1580	>	protected Object realCall() throws InterruptedException {
1581	>	delay(SMALL_DELAY_MS);
1582	>	return Boolean.TRUE;
1583	>	}
1584	>	}
1585	>
1586	>	public class MediumRunnable extends CheckedRunnable {
1587	>	protected void realRun() throws Throwable {
1588	>	delay(MEDIUM_DELAY_MS);
1589	>	}
1590	>	}
1591	>
1592	>	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1593	>	protected void realRun() throws InterruptedException {
1594	>	delay(MEDIUM_DELAY_MS);
1595	>	}
1596	>	}
1597	>
1598	>	public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1599	>	return new CheckedRunnable() {
1600	>	protected void realRun() {
1601	>	try {
1602	>	delay(timeoutMillis);
1603	>	} catch (InterruptedException ok) {}
1604	>	}};
1605	>	}
1606	>
1607	>	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1608	>	protected void realRun() {
1609		try {
1610	<	Thread.sleep(MEDIUM_DELAY_MS);
1611	<	}
486	<	catch(InterruptedException success) {
487	<	}
1610	>	delay(MEDIUM_DELAY_MS);
1611	>	} catch (InterruptedException ok) {}
1612		}
1613		}
1614
1615	<	class LongPossiblyInterruptedRunnable implements Runnable {
1616	<	public void run() {
1615	>	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1616	>	protected void realRun() {
1617		try {
1618	<	Thread.sleep(LONG_DELAY_MS);
1619	<	}
496	<	catch(InterruptedException success) {
497	<	}
1618	>	delay(LONG_DELAY_MS);
1619	>	} catch (InterruptedException ok) {}
1620		}
1621		}
1622
1623		/**
1624		* For use as ThreadFactory in constructors
1625		*/
1626	<	static class SimpleThreadFactory implements ThreadFactory{
1627	<	public Thread newThread(Runnable r){
1626	>	public static class SimpleThreadFactory implements ThreadFactory {
1627	>	public Thread newThread(Runnable r) {
1628		return new Thread(r);
1629	<	}
1629	>	}
1630	>	}
1631	>
1632	>	public interface TrackedRunnable extends Runnable {
1633	>	boolean isDone();
1634		}
1635
1636	<	static class TrackedShortRunnable implements Runnable {
1637	<	volatile boolean done = false;
1636	>	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1637	>	return new TrackedRunnable() {
1638	>	private volatile boolean done = false;
1639	>	public boolean isDone() { return done; }
1640	>	public void run() {
1641	>	try {
1642	>	delay(timeoutMillis);
1643	>	done = true;
1644	>	} catch (InterruptedException ok) {}
1645	>	}
1646	>	};
1647	>	}
1648	>
1649	>	public static class TrackedShortRunnable implements Runnable {
1650	>	public volatile boolean done = false;
1651		public void run() {
1652		try {
1653	<	Thread.sleep(SMALL_DELAY_MS);
1653	>	delay(SHORT_DELAY_MS);
1654		done = true;
1655	<	} catch(Exception e){
517	<	}
1655	>	} catch (InterruptedException ok) {}
1656		}
1657		}
1658
1659	<	static class TrackedMediumRunnable implements Runnable {
1660	<	volatile boolean done = false;
1659	>	public static class TrackedSmallRunnable implements Runnable {
1660	>	public volatile boolean done = false;
1661		public void run() {
1662		try {
1663	<	Thread.sleep(MEDIUM_DELAY_MS);
1663	>	delay(SMALL_DELAY_MS);
1664		done = true;
1665	<	} catch(Exception e){
528	<	}
1665	>	} catch (InterruptedException ok) {}
1666		}
1667		}
1668
1669	<	static class TrackedLongRunnable implements Runnable {
1670	<	volatile boolean done = false;
1669	>	public static class TrackedMediumRunnable implements Runnable {
1670	>	public volatile boolean done = false;
1671		public void run() {
1672		try {
1673	<	Thread.sleep(LONG_DELAY_MS);
1673	>	delay(MEDIUM_DELAY_MS);
1674		done = true;
1675	<	} catch(Exception e){
539	<	}
1675	>	} catch (InterruptedException ok) {}
1676		}
1677		}
1678
1679	<	static class TrackedNoOpRunnable implements Runnable {
1680	<	volatile boolean done = false;
1679	>	public static class TrackedLongRunnable implements Runnable {
1680	>	public volatile boolean done = false;
1681	>	public void run() {
1682	>	try {
1683	>	delay(LONG_DELAY_MS);
1684	>	done = true;
1685	>	} catch (InterruptedException ok) {}
1686	>	}
1687	>	}
1688	>
1689	>	public static class TrackedNoOpRunnable implements Runnable {
1690	>	public volatile boolean done = false;
1691		public void run() {
1692		done = true;
1693		}
1694		}
1695
1696	<	static class TrackedCallable implements Callable {
1697	<	volatile boolean done = false;
1696	>	public static class TrackedCallable implements Callable {
1697	>	public volatile boolean done = false;
1698		public Object call() {
1699		try {
1700	<	Thread.sleep(SMALL_DELAY_MS);
1700	>	delay(SMALL_DELAY_MS);
1701		done = true;
1702	<	} catch(Exception e){
557	<	}
1702	>	} catch (InterruptedException ok) {}
1703		return Boolean.TRUE;
1704		}
1705		}
1706
1707	+	/**
1708	+	* Analog of CheckedRunnable for RecursiveAction
1709	+	*/
1710	+	public abstract class CheckedRecursiveAction extends RecursiveAction {
1711	+	protected abstract void realCompute() throws Throwable;
1712	+
1713	+	@Override protected final void compute() {
1714	+	try {
1715	+	realCompute();
1716	+	} catch (Throwable fail) {
1717	+	threadUnexpectedException(fail);
1718	+	}
1719	+	}
1720	+	}
1721	+
1722	+	/**
1723	+	* Analog of CheckedCallable for RecursiveTask
1724	+	*/
1725	+	public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1726	+	protected abstract T realCompute() throws Throwable;
1727	+
1728	+	@Override protected final T compute() {
1729	+	try {
1730	+	return realCompute();
1731	+	} catch (Throwable fail) {
1732	+	threadUnexpectedException(fail);
1733	+	return null;
1734	+	}
1735	+	}
1736	+	}
1737
1738		/**
1739		* For use as RejectedExecutionHandler in constructors
1740		*/
1741	<	static class NoOpREHandler implements RejectedExecutionHandler{
1742	<	public void rejectedExecution(Runnable r, ThreadPoolExecutor executor){}
1741	>	public static class NoOpREHandler implements RejectedExecutionHandler {
1742	>	public void rejectedExecution(Runnable r,
1743	>	ThreadPoolExecutor executor) {}
1744		}
1745	<
1746	<
1745	>
1746	>	/**
1747	>	* A CyclicBarrier that uses timed await and fails with
1748	>	* AssertionFailedErrors instead of throwing checked exceptions.
1749	>	*/
1750	>	public class CheckedBarrier extends CyclicBarrier {
1751	>	public CheckedBarrier(int parties) { super(parties); }
1752	>
1753	>	public int await() {
1754	>	try {
1755	>	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1756	>	} catch (TimeoutException timedOut) {
1757	>	throw new AssertionFailedError("timed out");
1758	>	} catch (Exception fail) {
1759	>	AssertionFailedError afe =
1760	>	new AssertionFailedError("Unexpected exception: " + fail);
1761	>	afe.initCause(fail);
1762	>	throw afe;
1763	>	}
1764	>	}
1765	>	}
1766	>
1767	>	void checkEmpty(BlockingQueue q) {
1768	>	try {
1769	>	assertTrue(q.isEmpty());
1770	>	assertEquals(0, q.size());
1771	>	assertNull(q.peek());
1772	>	assertNull(q.poll());
1773	>	assertNull(q.poll(0, MILLISECONDS));
1774	>	assertEquals(q.toString(), "[]");
1775	>	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1776	>	assertFalse(q.iterator().hasNext());
1777	>	try {
1778	>	q.element();
1779	>	shouldThrow();
1780	>	} catch (NoSuchElementException success) {}
1781	>	try {
1782	>	q.iterator().next();
1783	>	shouldThrow();
1784	>	} catch (NoSuchElementException success) {}
1785	>	try {
1786	>	q.remove();
1787	>	shouldThrow();
1788	>	} catch (NoSuchElementException success) {}
1789	>	} catch (InterruptedException fail) { threadUnexpectedException(fail); }
1790	>	}
1791	>
1792	>	void assertSerialEquals(Object x, Object y) {
1793	>	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1794	>	}
1795	>
1796	>	void assertNotSerialEquals(Object x, Object y) {
1797	>	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1798	>	}
1799	>
1800	>	byte[] serialBytes(Object o) {
1801	>	try {
1802	>	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1803	>	ObjectOutputStream oos = new ObjectOutputStream(bos);
1804	>	oos.writeObject(o);
1805	>	oos.flush();
1806	>	oos.close();
1807	>	return bos.toByteArray();
1808	>	} catch (Throwable fail) {
1809	>	threadUnexpectedException(fail);
1810	>	return new byte[0];
1811	>	}
1812	>	}
1813	>
1814	>	@SuppressWarnings("unchecked")
1815	>	<T> T serialClone(T o) {
1816	>	try {
1817	>	ObjectInputStream ois = new ObjectInputStream
1818	>	(new ByteArrayInputStream(serialBytes(o)));
1819	>	T clone = (T) ois.readObject();
1820	>	assertSame(o.getClass(), clone.getClass());
1821	>	return clone;
1822	>	} catch (Throwable fail) {
1823	>	threadUnexpectedException(fail);
1824	>	return null;
1825	>	}
1826	>	}
1827	>
1828	>	public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1829	>	Runnable... throwingActions) {
1830	>	for (Runnable throwingAction : throwingActions) {
1831	>	boolean threw = false;
1832	>	try { throwingAction.run(); }
1833	>	catch (Throwable t) {
1834	>	threw = true;
1835	>	if (!expectedExceptionClass.isInstance(t)) {
1836	>	AssertionFailedError afe =
1837	>	new AssertionFailedError
1838	>	("Expected " + expectedExceptionClass.getName() +
1839	>	", got " + t.getClass().getName());
1840	>	afe.initCause(t);
1841	>	threadUnexpectedException(afe);
1842	>	}
1843	>	}
1844	>	if (!threw)
1845	>	shouldThrow(expectedExceptionClass.getName());
1846	>	}
1847	>	}
1848	>
1849	>	public void assertIteratorExhausted(Iterator<?> it) {
1850	>	try {
1851	>	it.next();
1852	>	shouldThrow();
1853	>	} catch (NoSuchElementException success) {}
1854	>	assertFalse(it.hasNext());
1855	>	}
1856	>
1857	>	public <T> Callable<T> callableThrowing(final Exception ex) {
1858	>	return new Callable<T>() { public T call() throws Exception { throw ex; }};
1859	>	}
1860	>
1861	>	public Runnable runnableThrowing(final RuntimeException ex) {
1862	>	return new Runnable() { public void run() { throw ex; }};
1863	>	}
1864	>
1865	>	/** A reusable thread pool to be shared by tests. */
1866	>	static final ExecutorService cachedThreadPool =
1867	>	new ThreadPoolExecutor(0, Integer.MAX_VALUE,
1868	>	1000L, MILLISECONDS,
1869	>	new SynchronousQueue<Runnable>());
1870	>
1871		}

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