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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.37 by dl, Tue Aug 4 00:23:18 2009 UTC vs.
Revision 1.191 by jsr166, Sat May 21 22:29:45 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	>	*/
16	>
17		import static java.util.concurrent.TimeUnit.MILLISECONDS;
18	<	import java.io.*;
19	<	import java.security.*;
18	>	import static java.util.concurrent.TimeUnit.MINUTES;
19	>	import static java.util.concurrent.TimeUnit.NANOSECONDS;
20	>
21	>	import java.io.ByteArrayInputStream;
22	>	import java.io.ByteArrayOutputStream;
23	>	import java.io.ObjectInputStream;
24	>	import java.io.ObjectOutputStream;
25	>	import java.lang.management.ManagementFactory;
26	>	import java.lang.management.ThreadInfo;
27	>	import java.lang.management.ThreadMXBean;
28	>	import java.lang.reflect.Constructor;
29	>	import java.lang.reflect.Method;
30	>	import java.lang.reflect.Modifier;
31	>	import java.nio.file.Files;
32	>	import java.nio.file.Paths;
33	>	import java.security.CodeSource;
34	>	import java.security.Permission;
35	>	import java.security.PermissionCollection;
36	>	import java.security.Permissions;
37	>	import java.security.Policy;
38	>	import java.security.ProtectionDomain;
39	>	import java.security.SecurityPermission;
40	>	import java.util.ArrayList;
41	>	import java.util.Arrays;
42	>	import java.util.Date;
43	>	import java.util.Enumeration;
44	>	import java.util.Iterator;
45	>	import java.util.List;
46	>	import java.util.NoSuchElementException;
47	>	import java.util.PropertyPermission;
48	>	import java.util.concurrent.BlockingQueue;
49	>	import java.util.concurrent.Callable;
50	>	import java.util.concurrent.CountDownLatch;
51	>	import java.util.concurrent.CyclicBarrier;
52	>	import java.util.concurrent.ExecutionException;
53	>	import java.util.concurrent.Executors;
54	>	import java.util.concurrent.ExecutorService;
55	>	import java.util.concurrent.ForkJoinPool;
56	>	import java.util.concurrent.Future;
57	>	import java.util.concurrent.RecursiveAction;
58	>	import java.util.concurrent.RecursiveTask;
59	>	import java.util.concurrent.RejectedExecutionHandler;
60	>	import java.util.concurrent.Semaphore;
61	>	import java.util.concurrent.ThreadFactory;
62	>	import java.util.concurrent.ThreadPoolExecutor;
63	>	import java.util.concurrent.TimeoutException;
64	>	import java.util.concurrent.atomic.AtomicBoolean;
65	>	import java.util.concurrent.atomic.AtomicReference;
66	>	import java.util.regex.Matcher;
67	>	import java.util.regex.Pattern;
68	>
69	>	import junit.framework.AssertionFailedError;
70	>	import junit.framework.Test;
71	>	import junit.framework.TestCase;
72	>	import junit.framework.TestResult;
73	>	import junit.framework.TestSuite;
74
75		/**
76		* Base class for JSR166 Junit TCK tests.  Defines some constants,
#	Line 23 | Line 82 | import java.security.*;
82		*
83		* <ol>
84		*
85	<	* <li> All assertions in code running in generated threads must use
85	>	* <li>All assertions in code running in generated threads must use
86		* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link
87		* #threadAssertEquals}, or {@link #threadAssertNull}, (not
88	<	* <tt>fail</tt>, <tt>assertTrue</tt>, etc.) It is OK (but not
88	>	* {@code fail}, {@code assertTrue}, etc.) It is OK (but not
89		* particularly recommended) for other code to use these forms too.
90		* Only the most typically used JUnit assertion methods are defined
91	<	* this way, but enough to live with.</li>
91	>	* this way, but enough to live with.
92		*
93	<	* <li> If you override {@link #setUp} or {@link #tearDown}, make sure
94	<	* to invoke <tt>super.setUp</tt> and <tt>super.tearDown</tt> within
93	>	* <li>If you override {@link #setUp} or {@link #tearDown}, make sure
94	>	* to invoke {@code super.setUp} and {@code super.tearDown} within
95		* them. These methods are used to clear and check for thread
96	<	* assertion failures.</li>
96	>	* assertion failures.
97		*
98	<	* <li>All delays and timeouts must use one of the constants <tt>
99	<	* SHORT_DELAY_MS</tt>, <tt> SMALL_DELAY_MS</tt>, <tt> MEDIUM_DELAY_MS</tt>,
100	<	* <tt> LONG_DELAY_MS</tt>. The idea here is that a SHORT is always
98	>	* <li>All delays and timeouts must use one of the constants {@code
99	>	* SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS},
100	>	* {@code LONG_DELAY_MS}. The idea here is that a SHORT is always
101		* discriminable from zero time, and always allows enough time for the
102		* small amounts of computation (creating a thread, calling a few
103		* methods, etc) needed to reach a timeout point. Similarly, a SMALL
104		* is always discriminable as larger than SHORT and smaller than
105		* MEDIUM.  And so on. These constants are set to conservative values,
106		* but even so, if there is ever any doubt, they can all be increased
107	<	* in one spot to rerun tests on slower platforms.</li>
107	>	* in one spot to rerun tests on slower platforms.
108		*
109	<	* <li> All threads generated must be joined inside each test case
110	<	* method (or <tt>fail</tt> to do so) before returning from the
111	<	* method. The <tt> joinPool</tt> method can be used to do this when
112	<	* using Executors.</li>
109	>	* <li>All threads generated must be joined inside each test case
110	>	* method (or {@code fail} to do so) before returning from the
111	>	* method. The {@code joinPool} method can be used to do this when
112	>	* using Executors.
113		*
114		* </ol>
115		*
116	<	* <p> <b>Other notes</b>
116	>	* <p><b>Other notes</b>
117		* <ul>
118		*
119	<	* <li> Usually, there is one testcase method per JSR166 method
119	>	* <li>Usually, there is one testcase method per JSR166 method
120		* covering "normal" operation, and then as many exception-testing
121		* methods as there are exceptions the method can throw. Sometimes
122		* there are multiple tests per JSR166 method when the different
123		* "normal" behaviors differ significantly. And sometimes testcases
124	<	* cover multiple methods when they cannot be tested in
66	<	* isolation.</li>
124	>	* cover multiple methods when they cannot be tested in isolation.
125		*
126	<	* <li> The documentation style for testcases is to provide as javadoc
126	>	* <li>The documentation style for testcases is to provide as javadoc
127		* a simple sentence or two describing the property that the testcase
128		* method purports to test. The javadocs do not say anything about how
129	<	* the property is tested. To find out, read the code.</li>
129	>	* the property is tested. To find out, read the code.
130		*
131	<	* <li> These tests are "conformance tests", and do not attempt to
131	>	* <li>These tests are "conformance tests", and do not attempt to
132		* test throughput, latency, scalability or other performance factors
133		* (see the separate "jtreg" tests for a set intended to check these
134		* for the most central aspects of functionality.) So, most tests use
135		* the smallest sensible numbers of threads, collection sizes, etc
136	<	* needed to check basic conformance.</li>
136	>	* needed to check basic conformance.
137		*
138		* <li>The test classes currently do not declare inclusion in
139		* any particular package to simplify things for people integrating
140	<	* them in TCK test suites.</li>
140	>	* them in TCK test suites.
141		*
142	<	* <li> As a convenience, the <tt>main</tt> of this class (JSR166TestCase)
143	<	* runs all JSR166 unit tests.</li>
142	>	* <li>As a convenience, the {@code main} of this class (JSR166TestCase)
143	>	* runs all JSR166 unit tests.
144		*
145		* </ul>
146		*/
147		public class JSR166TestCase extends TestCase {
148	+	private static final boolean useSecurityManager =
149	+	Boolean.getBoolean("jsr166.useSecurityManager");
150	+
151	+	protected static final boolean expensiveTests =
152	+	Boolean.getBoolean("jsr166.expensiveTests");
153	+
154		/**
155	<	* Runs all JSR166 unit tests using junit.textui.TestRunner
155	>	* If true, also run tests that are not part of the official tck
156	>	* because they test unspecified implementation details.
157		*/
158	<	public static void main (String[] args) {
159	<	int iters = 1;
160	<	if (args.length > 0)
161	<	iters = Integer.parseInt(args[0]);
162	<	Test s = suite();
163	<	for (int i = 0; i < iters; ++i) {
164	<	junit.textui.TestRunner.run (s);
165	<	System.gc();
166	<	System.runFinalization();
158	>	protected static final boolean testImplementationDetails =
159	>	Boolean.getBoolean("jsr166.testImplementationDetails");
160	>
161	>	/**
162	>	* If true, report on stdout all "slow" tests, that is, ones that
163	>	* take more than profileThreshold milliseconds to execute.
164	>	*/
165	>	private static final boolean profileTests =
166	>	Boolean.getBoolean("jsr166.profileTests");
167	>
168	>	/**
169	>	* The number of milliseconds that tests are permitted for
170	>	* execution without being reported, when profileTests is set.
171	>	*/
172	>	private static final long profileThreshold =
173	>	Long.getLong("jsr166.profileThreshold", 100);
174	>
175	>	/**
176	>	* The number of repetitions per test (for tickling rare bugs).
177	>	*/
178	>	private static final int runsPerTest =
179	>	Integer.getInteger("jsr166.runsPerTest", 1);
180	>
181	>	/**
182	>	* The number of repetitions of the test suite (for finding leaks?).
183	>	*/
184	>	private static final int suiteRuns =
185	>	Integer.getInteger("jsr166.suiteRuns", 1);
186	>
187	>	/**
188	>	* Returns the value of the system property, or NaN if not defined.
189	>	*/
190	>	private static float systemPropertyValue(String name) {
191	>	String floatString = System.getProperty(name);
192	>	if (floatString == null)
193	>	return Float.NaN;
194	>	try {
195	>	return Float.parseFloat(floatString);
196	>	} catch (NumberFormatException ex) {
197	>	throw new IllegalArgumentException(
198	>	String.format("Bad float value in system property %s=%s",
199	>	name, floatString));
200	>	}
201	>	}
202	>
203	>	/**
204	>	* The scaling factor to apply to standard delays used in tests.
205	>	* May be initialized from any of:
206	>	* - the "jsr166.delay.factor" system property
207	>	* - the "test.timeout.factor" system property (as used by jtreg)
208	>	*   See: http://openjdk.java.net/jtreg/tag-spec.html
209	>	* - hard-coded fuzz factor when using a known slowpoke VM
210	>	*/
211	>	private static final float delayFactor = delayFactor();
212	>
213	>	private static float delayFactor() {
214	>	float x;
215	>	if (!Float.isNaN(x = systemPropertyValue("jsr166.delay.factor")))
216	>	return x;
217	>	if (!Float.isNaN(x = systemPropertyValue("test.timeout.factor")))
218	>	return x;
219	>	String prop = System.getProperty("java.vm.version");
220	>	if (prop != null && prop.matches(".*debug.*"))
221	>	return 4.0f; // How much slower is fastdebug than product?!
222	>	return 1.0f;
223	>	}
224	>
225	>	public JSR166TestCase() { super(); }
226	>	public JSR166TestCase(String name) { super(name); }
227	>
228	>	/**
229	>	* A filter for tests to run, matching strings of the form
230	>	* methodName(className), e.g. "testInvokeAll5(ForkJoinPoolTest)"
231	>	* Usefully combined with jsr166.runsPerTest.
232	>	*/
233	>	private static final Pattern methodFilter = methodFilter();
234	>
235	>	private static Pattern methodFilter() {
236	>	String regex = System.getProperty("jsr166.methodFilter");
237	>	return (regex == null) ? null : Pattern.compile(regex);
238	>	}
239	>
240	>	// Instrumentation to debug very rare, but very annoying hung test runs.
241	>	static volatile TestCase currentTestCase;
242	>	// static volatile int currentRun = 0;
243	>	static {
244	>	Runnable checkForWedgedTest = new Runnable() { public void run() {
245	>	// Avoid spurious reports with enormous runsPerTest.
246	>	// A single test case run should never take more than 1 second.
247	>	// But let's cap it at the high end too ...
248	>	final int timeoutMinutes =
249	>	Math.min(15, Math.max(runsPerTest / 60, 1));
250	>	for (TestCase lastTestCase = currentTestCase;;) {
251	>	try { MINUTES.sleep(timeoutMinutes); }
252	>	catch (InterruptedException unexpected) { break; }
253	>	if (lastTestCase == currentTestCase) {
254	>	System.err.printf(
255	>	"Looks like we're stuck running test: %s%n",
256	>	lastTestCase);
257	>	//                     System.err.printf(
258	>	//                         "Looks like we're stuck running test: %s (%d/%d)%n",
259	>	//                         lastTestCase, currentRun, runsPerTest);
260	>	//                     System.err.println("availableProcessors=" +
261	>	//                         Runtime.getRuntime().availableProcessors());
262	>	//                     System.err.printf("cpu model = %s%n", cpuModel());
263	>	dumpTestThreads();
264	>	// one stack dump is probably enough; more would be spam
265	>	break;
266	>	}
267	>	lastTestCase = currentTestCase;
268	>	}}};
269	>	Thread thread = new Thread(checkForWedgedTest, "checkForWedgedTest");
270	>	thread.setDaemon(true);
271	>	thread.start();
272	>	}
273	>
274	>	//     public static String cpuModel() {
275	>	//         try {
276	>	//             Matcher matcher = Pattern.compile("model name\\s*: (.*)")
277	>	//                 .matcher(new String(
278	>	//                      Files.readAllBytes(Paths.get("/proc/cpuinfo")), "UTF-8"));
279	>	//             matcher.find();
280	>	//             return matcher.group(1);
281	>	//         } catch (Exception ex) { return null; }
282	>	//     }
283	>
284	>	public void runBare() throws Throwable {
285	>	currentTestCase = this;
286	>	if (methodFilter == null
287	>	|| methodFilter.matcher(toString()).find())
288	>	super.runBare();
289	>	}
290	>
291	>	protected void runTest() throws Throwable {
292	>	for (int i = 0; i < runsPerTest; i++) {
293	>	// currentRun = i;
294	>	if (profileTests)
295	>	runTestProfiled();
296	>	else
297	>	super.runTest();
298	>	}
299	>	}
300	>
301	>	protected void runTestProfiled() throws Throwable {
302	>	for (int i = 0; i < 2; i++) {
303	>	long startTime = System.nanoTime();
304	>	super.runTest();
305	>	long elapsedMillis = millisElapsedSince(startTime);
306	>	if (elapsedMillis < profileThreshold)
307	>	break;
308	>	// Never report first run of any test; treat it as a
309	>	// warmup run, notably to trigger all needed classloading,
310	>	if (i > 0)
311	>	System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
312	>	}
313	>	}
314	>
315	>	/**
316	>	* Runs all JSR166 unit tests using junit.textui.TestRunner.
317	>	*/
318	>	public static void main(String[] args) {
319	>	main(suite(), args);
320	>	}
321	>
322	>	static class PithyResultPrinter extends junit.textui.ResultPrinter {
323	>	PithyResultPrinter(java.io.PrintStream writer) { super(writer); }
324	>	long runTime;
325	>	public void startTest(Test test) {}
326	>	protected void printHeader(long runTime) {
327	>	this.runTime = runTime; // defer printing for later
328	>	}
329	>	protected void printFooter(TestResult result) {
330	>	if (result.wasSuccessful()) {
331	>	getWriter().println("OK (" + result.runCount() + " tests)"
332	>	+ "  Time: " + elapsedTimeAsString(runTime));
333	>	} else {
334	>	getWriter().println("Time: " + elapsedTimeAsString(runTime));
335	>	super.printFooter(result);
336	>	}
337		}
103	–	System.exit(0);
338		}
339
340		/**
341	<	* Collects all JSR166 unit tests as one suite
341	>	* Returns a TestRunner that doesn't bother with unnecessary
342	>	* fluff, like printing a "." for each test case.
343		*/
344	<	public static Test suite ( ) {
345	<	TestSuite suite = new TestSuite("JSR166 Unit Tests");
344	>	static junit.textui.TestRunner newPithyTestRunner() {
345	>	junit.textui.TestRunner runner = new junit.textui.TestRunner();
346	>	runner.setPrinter(new PithyResultPrinter(System.out));
347	>	return runner;
348	>	}
349
350	<	suite.addTest(new TestSuite(ForkJoinPoolTest.class));
351	<	suite.addTest(new TestSuite(ForkJoinTaskTest.class));
352	<	suite.addTest(new TestSuite(RecursiveActionTest.class));
353	<	suite.addTest(new TestSuite(RecursiveTaskTest.class));
354	<	suite.addTest(new TestSuite(LinkedTransferQueueTest.class));
355	<	suite.addTest(new TestSuite(PhaserTest.class));
356	<	suite.addTest(new TestSuite(ThreadLocalRandomTest.class));
357	<	suite.addTest(new TestSuite(AbstractExecutorServiceTest.class));
358	<	suite.addTest(new TestSuite(AbstractQueueTest.class));
359	<	suite.addTest(new TestSuite(AbstractQueuedSynchronizerTest.class));
360	<	suite.addTest(new TestSuite(AbstractQueuedLongSynchronizerTest.class));
361	<	suite.addTest(new TestSuite(ArrayBlockingQueueTest.class));
362	<	suite.addTest(new TestSuite(ArrayDequeTest.class));
363	<	suite.addTest(new TestSuite(AtomicBooleanTest.class));
364	<	suite.addTest(new TestSuite(AtomicIntegerArrayTest.class));
365	<	suite.addTest(new TestSuite(AtomicIntegerFieldUpdaterTest.class));
366	<	suite.addTest(new TestSuite(AtomicIntegerTest.class));
367	<	suite.addTest(new TestSuite(AtomicLongArrayTest.class));
130	<	suite.addTest(new TestSuite(AtomicLongFieldUpdaterTest.class));
131	<	suite.addTest(new TestSuite(AtomicLongTest.class));
132	<	suite.addTest(new TestSuite(AtomicMarkableReferenceTest.class));
133	<	suite.addTest(new TestSuite(AtomicReferenceArrayTest.class));
134	<	suite.addTest(new TestSuite(AtomicReferenceFieldUpdaterTest.class));
135	<	suite.addTest(new TestSuite(AtomicReferenceTest.class));
136	<	suite.addTest(new TestSuite(AtomicStampedReferenceTest.class));
137	<	suite.addTest(new TestSuite(ConcurrentHashMapTest.class));
138	<	suite.addTest(new TestSuite(ConcurrentLinkedQueueTest.class));
139	<	suite.addTest(new TestSuite(ConcurrentSkipListMapTest.class));
140	<	suite.addTest(new TestSuite(ConcurrentSkipListSubMapTest.class));
141	<	suite.addTest(new TestSuite(ConcurrentSkipListSetTest.class));
142	<	suite.addTest(new TestSuite(ConcurrentSkipListSubSetTest.class));
143	<	suite.addTest(new TestSuite(CopyOnWriteArrayListTest.class));
144	<	suite.addTest(new TestSuite(CopyOnWriteArraySetTest.class));
145	<	suite.addTest(new TestSuite(CountDownLatchTest.class));
146	<	suite.addTest(new TestSuite(CyclicBarrierTest.class));
147	<	suite.addTest(new TestSuite(DelayQueueTest.class));
148	<	suite.addTest(new TestSuite(EntryTest.class));
149	<	suite.addTest(new TestSuite(ExchangerTest.class));
150	<	suite.addTest(new TestSuite(ExecutorsTest.class));
151	<	suite.addTest(new TestSuite(ExecutorCompletionServiceTest.class));
152	<	suite.addTest(new TestSuite(FutureTaskTest.class));
153	<	suite.addTest(new TestSuite(LinkedBlockingDequeTest.class));
154	<	suite.addTest(new TestSuite(LinkedBlockingQueueTest.class));
155	<	suite.addTest(new TestSuite(LinkedListTest.class));
156	<	suite.addTest(new TestSuite(LockSupportTest.class));
157	<	suite.addTest(new TestSuite(PriorityBlockingQueueTest.class));
158	<	suite.addTest(new TestSuite(PriorityQueueTest.class));
159	<	suite.addTest(new TestSuite(ReentrantLockTest.class));
160	<	suite.addTest(new TestSuite(ReentrantReadWriteLockTest.class));
161	<	suite.addTest(new TestSuite(ScheduledExecutorTest.class));
162	<	suite.addTest(new TestSuite(ScheduledExecutorSubclassTest.class));
163	<	suite.addTest(new TestSuite(SemaphoreTest.class));
164	<	suite.addTest(new TestSuite(SynchronousQueueTest.class));
165	<	suite.addTest(new TestSuite(SystemTest.class));
166	<	suite.addTest(new TestSuite(ThreadLocalTest.class));
167	<	suite.addTest(new TestSuite(ThreadPoolExecutorTest.class));
168	<	suite.addTest(new TestSuite(ThreadPoolExecutorSubclassTest.class));
169	<	suite.addTest(new TestSuite(ThreadTest.class));
170	<	suite.addTest(new TestSuite(TimeUnitTest.class));
171	<	suite.addTest(new TestSuite(TreeMapTest.class));
172	<	suite.addTest(new TestSuite(TreeSetTest.class));
173	<	suite.addTest(new TestSuite(TreeSubMapTest.class));
174	<	suite.addTest(new TestSuite(TreeSubSetTest.class));
350	>	/**
351	>	* Runs all unit tests in the given test suite.
352	>	* Actual behavior influenced by jsr166.* system properties.
353	>	*/
354	>	static void main(Test suite, String[] args) {
355	>	if (useSecurityManager) {
356	>	System.err.println("Setting a permissive security manager");
357	>	Policy.setPolicy(permissivePolicy());
358	>	System.setSecurityManager(new SecurityManager());
359	>	}
360	>	for (int i = 0; i < suiteRuns; i++) {
361	>	TestResult result = newPithyTestRunner().doRun(suite);
362	>	if (!result.wasSuccessful())
363	>	System.exit(1);
364	>	System.gc();
365	>	System.runFinalization();
366	>	}
367	>	}
368
369	+	public static TestSuite newTestSuite(Object... suiteOrClasses) {
370	+	TestSuite suite = new TestSuite();
371	+	for (Object suiteOrClass : suiteOrClasses) {
372	+	if (suiteOrClass instanceof TestSuite)
373	+	suite.addTest((TestSuite) suiteOrClass);
374	+	else if (suiteOrClass instanceof Class)
375	+	suite.addTest(new TestSuite((Class<?>) suiteOrClass));
376	+	else
377	+	throw new ClassCastException("not a test suite or class");
378	+	}
379		return suite;
380		}
381
382	+	public static void addNamedTestClasses(TestSuite suite,
383	+	String... testClassNames) {
384	+	for (String testClassName : testClassNames) {
385	+	try {
386	+	Class<?> testClass = Class.forName(testClassName);
387	+	Method m = testClass.getDeclaredMethod("suite",
388	+	new Class<?>[0]);
389	+	suite.addTest(newTestSuite((Test)m.invoke(null)));
390	+	} catch (Exception e) {
391	+	throw new Error("Missing test class", e);
392	+	}
393	+	}
394	+	}
395	+
396	+	public static final double JAVA_CLASS_VERSION;
397	+	public static final String JAVA_SPECIFICATION_VERSION;
398	+	static {
399	+	try {
400	+	JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
401	+	new java.security.PrivilegedAction<Double>() {
402	+	public Double run() {
403	+	return Double.valueOf(System.getProperty("java.class.version"));}});
404	+	JAVA_SPECIFICATION_VERSION = java.security.AccessController.doPrivileged(
405	+	new java.security.PrivilegedAction<String>() {
406	+	public String run() {
407	+	return System.getProperty("java.specification.version");}});
408	+	} catch (Throwable t) {
409	+	throw new Error(t);
410	+	}
411	+	}
412	+
413	+	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
414	+	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
415	+	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
416	+	public static boolean atLeastJava9() {
417	+	return JAVA_CLASS_VERSION >= 53.0
418	+	// As of 2015-09, java9 still uses 52.0 class file version
419	+	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?(9|[0-9][0-9])$");
420	+	}
421	+	public static boolean atLeastJava10() {
422	+	return JAVA_CLASS_VERSION >= 54.0
423	+	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?[0-9][0-9]$");
424	+	}
425	+
426	+	/**
427	+	* Collects all JSR166 unit tests as one suite.
428	+	*/
429	+	public static Test suite() {
430	+	// Java7+ test classes
431	+	TestSuite suite = newTestSuite(
432	+	ForkJoinPoolTest.suite(),
433	+	ForkJoinTaskTest.suite(),
434	+	RecursiveActionTest.suite(),
435	+	RecursiveTaskTest.suite(),
436	+	LinkedTransferQueueTest.suite(),
437	+	PhaserTest.suite(),
438	+	ThreadLocalRandomTest.suite(),
439	+	AbstractExecutorServiceTest.suite(),
440	+	AbstractQueueTest.suite(),
441	+	AbstractQueuedSynchronizerTest.suite(),
442	+	AbstractQueuedLongSynchronizerTest.suite(),
443	+	ArrayBlockingQueueTest.suite(),
444	+	ArrayDequeTest.suite(),
445	+	AtomicBooleanTest.suite(),
446	+	AtomicIntegerArrayTest.suite(),
447	+	AtomicIntegerFieldUpdaterTest.suite(),
448	+	AtomicIntegerTest.suite(),
449	+	AtomicLongArrayTest.suite(),
450	+	AtomicLongFieldUpdaterTest.suite(),
451	+	AtomicLongTest.suite(),
452	+	AtomicMarkableReferenceTest.suite(),
453	+	AtomicReferenceArrayTest.suite(),
454	+	AtomicReferenceFieldUpdaterTest.suite(),
455	+	AtomicReferenceTest.suite(),
456	+	AtomicStampedReferenceTest.suite(),
457	+	ConcurrentHashMapTest.suite(),
458	+	ConcurrentLinkedDequeTest.suite(),
459	+	ConcurrentLinkedQueueTest.suite(),
460	+	ConcurrentSkipListMapTest.suite(),
461	+	ConcurrentSkipListSubMapTest.suite(),
462	+	ConcurrentSkipListSetTest.suite(),
463	+	ConcurrentSkipListSubSetTest.suite(),
464	+	CopyOnWriteArrayListTest.suite(),
465	+	CopyOnWriteArraySetTest.suite(),
466	+	CountDownLatchTest.suite(),
467	+	CyclicBarrierTest.suite(),
468	+	DelayQueueTest.suite(),
469	+	EntryTest.suite(),
470	+	ExchangerTest.suite(),
471	+	ExecutorsTest.suite(),
472	+	ExecutorCompletionServiceTest.suite(),
473	+	FutureTaskTest.suite(),
474	+	LinkedBlockingDequeTest.suite(),
475	+	LinkedBlockingQueueTest.suite(),
476	+	LinkedListTest.suite(),
477	+	LockSupportTest.suite(),
478	+	PriorityBlockingQueueTest.suite(),
479	+	PriorityQueueTest.suite(),
480	+	ReentrantLockTest.suite(),
481	+	ReentrantReadWriteLockTest.suite(),
482	+	ScheduledExecutorTest.suite(),
483	+	ScheduledExecutorSubclassTest.suite(),
484	+	SemaphoreTest.suite(),
485	+	SynchronousQueueTest.suite(),
486	+	SystemTest.suite(),
487	+	ThreadLocalTest.suite(),
488	+	ThreadPoolExecutorTest.suite(),
489	+	ThreadPoolExecutorSubclassTest.suite(),
490	+	ThreadTest.suite(),
491	+	TimeUnitTest.suite(),
492	+	TreeMapTest.suite(),
493	+	TreeSetTest.suite(),
494	+	TreeSubMapTest.suite(),
495	+	TreeSubSetTest.suite());
496	+
497	+	// Java8+ test classes
498	+	if (atLeastJava8()) {
499	+	String[] java8TestClassNames = {
500	+	"Atomic8Test",
501	+	"CompletableFutureTest",
502	+	"ConcurrentHashMap8Test",
503	+	"CountedCompleterTest",
504	+	"DoubleAccumulatorTest",
505	+	"DoubleAdderTest",
506	+	"ForkJoinPool8Test",
507	+	"ForkJoinTask8Test",
508	+	"LongAccumulatorTest",
509	+	"LongAdderTest",
510	+	"SplittableRandomTest",
511	+	"StampedLockTest",
512	+	"SubmissionPublisherTest",
513	+	"ThreadLocalRandom8Test",
514	+	"TimeUnit8Test",
515	+	};
516	+	addNamedTestClasses(suite, java8TestClassNames);
517	+	}
518	+
519	+	// Java9+ test classes
520	+	if (atLeastJava9()) {
521	+	String[] java9TestClassNames = {
522	+	// Currently empty, but expecting varhandle tests
523	+	};
524	+	addNamedTestClasses(suite, java9TestClassNames);
525	+	}
526	+
527	+	return suite;
528	+	}
529	+
530	+	/** Returns list of junit-style test method names in given class. */
531	+	public static ArrayList<String> testMethodNames(Class<?> testClass) {
532	+	Method[] methods = testClass.getDeclaredMethods();
533	+	ArrayList<String> names = new ArrayList<String>(methods.length);
534	+	for (Method method : methods) {
535	+	if (method.getName().startsWith("test")
536	+	&& Modifier.isPublic(method.getModifiers())
537	+	// method.getParameterCount() requires jdk8+
538	+	&& method.getParameterTypes().length == 0) {
539	+	names.add(method.getName());
540	+	}
541	+	}
542	+	return names;
543	+	}
544	+
545	+	/**
546	+	* Returns junit-style testSuite for the given test class, but
547	+	* parameterized by passing extra data to each test.
548	+	*/
549	+	public static <ExtraData> Test parameterizedTestSuite
550	+	(Class<? extends JSR166TestCase> testClass,
551	+	Class<ExtraData> dataClass,
552	+	ExtraData data) {
553	+	try {
554	+	TestSuite suite = new TestSuite();
555	+	Constructor c =
556	+	testClass.getDeclaredConstructor(dataClass, String.class);
557	+	for (String methodName : testMethodNames(testClass))
558	+	suite.addTest((Test) c.newInstance(data, methodName));
559	+	return suite;
560	+	} catch (Exception e) {
561	+	throw new Error(e);
562	+	}
563	+	}
564	+
565	+	/**
566	+	* Returns junit-style testSuite for the jdk8 extension of the
567	+	* given test class, but parameterized by passing extra data to
568	+	* each test.  Uses reflection to allow compilation in jdk7.
569	+	*/
570	+	public static <ExtraData> Test jdk8ParameterizedTestSuite
571	+	(Class<? extends JSR166TestCase> testClass,
572	+	Class<ExtraData> dataClass,
573	+	ExtraData data) {
574	+	if (atLeastJava8()) {
575	+	String name = testClass.getName();
576	+	String name8 = name.replaceAll("Test$", "8Test");
577	+	if (name.equals(name8)) throw new Error(name);
578	+	try {
579	+	return (Test)
580	+	Class.forName(name8)
581	+	.getMethod("testSuite", new Class[] { dataClass })
582	+	.invoke(null, data);
583	+	} catch (Exception e) {
584	+	throw new Error(e);
585	+	}
586	+	} else {
587	+	return new TestSuite();
588	+	}
589	+	}
590	+
591	+	// Delays for timing-dependent tests, in milliseconds.
592
593		public static long SHORT_DELAY_MS;
594		public static long SMALL_DELAY_MS;
595		public static long MEDIUM_DELAY_MS;
596		public static long LONG_DELAY_MS;
597
185	–
598		/**
599	<	* Returns the shortest timed delay. This could
600	<	* be reimplemented to use for example a Property.
599	>	* Returns the shortest timed delay. This can be scaled up for
600	>	* slow machines using the jsr166.delay.factor system property,
601	>	* or via jtreg's -timeoutFactor: flag.
602	>	* http://openjdk.java.net/jtreg/command-help.html
603		*/
604		protected long getShortDelay() {
605	<	return 50;
605	>	return (long) (50 * delayFactor);
606		}
607
194	–
608		/**
609		* Sets delays as multiples of SHORT_DELAY.
610		*/
611	<	protected  void setDelays() {
611	>	protected void setDelays() {
612		SHORT_DELAY_MS = getShortDelay();
613	<	SMALL_DELAY_MS = SHORT_DELAY_MS * 5;
613	>	SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
614		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
615	<	LONG_DELAY_MS = SHORT_DELAY_MS * 50;
615	>	LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
616		}
617
618		/**
619	<	* Flag set true if any threadAssert methods fail
619	>	* Returns a timeout in milliseconds to be used in tests that
620	>	* verify that operations block or time out.
621		*/
622	<	volatile boolean threadFailed;
622	>	long timeoutMillis() {
623	>	return SHORT_DELAY_MS / 4;
624	>	}
625
626		/**
627	<	* Initializes test to indicate that no thread assertions have failed
627	>	* Returns a new Date instance representing a time at least
628	>	* delayMillis milliseconds in the future.
629		*/
630	+	Date delayedDate(long delayMillis) {
631	+	// Add 1 because currentTimeMillis is known to round into the past.
632	+	return new Date(System.currentTimeMillis() + delayMillis + 1);
633	+	}
634	+
635	+	/**
636	+	* The first exception encountered if any threadAssertXXX method fails.
637	+	*/
638	+	private final AtomicReference<Throwable> threadFailure
639	+	= new AtomicReference<Throwable>(null);
640	+
641	+	/**
642	+	* Records an exception so that it can be rethrown later in the test
643	+	* harness thread, triggering a test case failure.  Only the first
644	+	* failure is recorded; subsequent calls to this method from within
645	+	* the same test have no effect.
646	+	*/
647	+	public void threadRecordFailure(Throwable t) {
648	+	System.err.println(t);
649	+	dumpTestThreads();
650	+	threadFailure.compareAndSet(null, t);
651	+	}
652	+
653		public void setUp() {
654		setDelays();
655	<	threadFailed = false;
655	>	}
656	>
657	>	void tearDownFail(String format, Object... args) {
658	>	String msg = toString() + ": " + String.format(format, args);
659	>	System.err.println(msg);
660	>	dumpTestThreads();
661	>	throw new AssertionFailedError(msg);
662	>	}
663	>
664	>	/**
665	>	* Extra checks that get done for all test cases.
666	>	*
667	>	* Triggers test case failure if any thread assertions have failed,
668	>	* by rethrowing, in the test harness thread, any exception recorded
669	>	* earlier by threadRecordFailure.
670	>	*
671	>	* Triggers test case failure if interrupt status is set in the main thread.
672	>	*/
673	>	public void tearDown() throws Exception {
674	>	Throwable t = threadFailure.getAndSet(null);
675	>	if (t != null) {
676	>	if (t instanceof Error)
677	>	throw (Error) t;
678	>	else if (t instanceof RuntimeException)
679	>	throw (RuntimeException) t;
680	>	else if (t instanceof Exception)
681	>	throw (Exception) t;
682	>	else {
683	>	AssertionFailedError afe =
684	>	new AssertionFailedError(t.toString());
685	>	afe.initCause(t);
686	>	throw afe;
687	>	}
688	>	}
689	>
690	>	if (Thread.interrupted())
691	>	tearDownFail("interrupt status set in main thread");
692	>
693	>	checkForkJoinPoolThreadLeaks();
694		}
695
696		/**
697	<	* Triggers test case failure if any thread assertions have failed
697	>	* Finds missing PoolCleaners
698		*/
699	<	public void tearDown() {
700	<	assertFalse(threadFailed);
699	>	void checkForkJoinPoolThreadLeaks() throws InterruptedException {
700	>	Thread[] survivors = new Thread[7];
701	>	int count = Thread.enumerate(survivors);
702	>	for (int i = 0; i < count; i++) {
703	>	Thread thread = survivors[i];
704	>	String name = thread.getName();
705	>	if (name.startsWith("ForkJoinPool-")) {
706	>	// give thread some time to terminate
707	>	thread.join(LONG_DELAY_MS);
708	>	if (thread.isAlive())
709	>	tearDownFail("Found leaked ForkJoinPool thread thread=%s",
710	>	thread);
711	>	}
712	>	}
713	>
714	>	if (!ForkJoinPool.commonPool()
715	>	.awaitQuiescence(LONG_DELAY_MS, MILLISECONDS))
716	>	tearDownFail("ForkJoin common pool thread stuck");
717		}
718
719		/**
720	<	* Fail, also setting status to indicate current testcase should fail
720	>	* Just like fail(reason), but additionally recording (using
721	>	* threadRecordFailure) any AssertionFailedError thrown, so that
722	>	* the current testcase will fail.
723		*/
724		public void threadFail(String reason) {
725	<	threadFailed = true;
726	<	fail(reason);
725	>	try {
726	>	fail(reason);
727	>	} catch (AssertionFailedError t) {
728	>	threadRecordFailure(t);
729	>	throw t;
730	>	}
731		}
732
733		/**
734	<	* If expression not true, set status to indicate current testcase
735	<	* should fail
734	>	* Just like assertTrue(b), but additionally recording (using
735	>	* threadRecordFailure) any AssertionFailedError thrown, so that
736	>	* the current testcase will fail.
737		*/
738		public void threadAssertTrue(boolean b) {
739	<	if (!b) {
239	<	threadFailed = true;
739	>	try {
740		assertTrue(b);
741	+	} catch (AssertionFailedError t) {
742	+	threadRecordFailure(t);
743	+	throw t;
744		}
745		}
746
747		/**
748	<	* If expression not false, set status to indicate current testcase
749	<	* should fail
748	>	* Just like assertFalse(b), but additionally recording (using
749	>	* threadRecordFailure) any AssertionFailedError thrown, so that
750	>	* the current testcase will fail.
751		*/
752		public void threadAssertFalse(boolean b) {
753	<	if (b) {
250	<	threadFailed = true;
753	>	try {
754		assertFalse(b);
755	+	} catch (AssertionFailedError t) {
756	+	threadRecordFailure(t);
757	+	throw t;
758		}
759		}
760
761		/**
762	<	* If argument not null, set status to indicate current testcase
763	<	* should fail
762	>	* Just like assertNull(x), but additionally recording (using
763	>	* threadRecordFailure) any AssertionFailedError thrown, so that
764	>	* the current testcase will fail.
765		*/
766		public void threadAssertNull(Object x) {
767	<	if (x != null) {
261	<	threadFailed = true;
767	>	try {
768		assertNull(x);
769	+	} catch (AssertionFailedError t) {
770	+	threadRecordFailure(t);
771	+	throw t;
772		}
773		}
774
775		/**
776	<	* If arguments not equal, set status to indicate current testcase
777	<	* should fail
776	>	* Just like assertEquals(x, y), but additionally recording (using
777	>	* threadRecordFailure) any AssertionFailedError thrown, so that
778	>	* the current testcase will fail.
779		*/
780		public void threadAssertEquals(long x, long y) {
781	<	if (x != y) {
272	<	threadFailed = true;
781	>	try {
782		assertEquals(x, y);
783	+	} catch (AssertionFailedError t) {
784	+	threadRecordFailure(t);
785	+	throw t;
786		}
787		}
788
789		/**
790	<	* If arguments not equal, set status to indicate current testcase
791	<	* should fail
790	>	* Just like assertEquals(x, y), but additionally recording (using
791	>	* threadRecordFailure) any AssertionFailedError thrown, so that
792	>	* the current testcase will fail.
793		*/
794		public void threadAssertEquals(Object x, Object y) {
795	<	if (x != y && (x == null || !x.equals(y))) {
283	<	threadFailed = true;
795	>	try {
796		assertEquals(x, y);
797	+	} catch (AssertionFailedError fail) {
798	+	threadRecordFailure(fail);
799	+	throw fail;
800	+	} catch (Throwable fail) {
801	+	threadUnexpectedException(fail);
802	+	}
803	+	}
804	+
805	+	/**
806	+	* Just like assertSame(x, y), but additionally recording (using
807	+	* threadRecordFailure) any AssertionFailedError thrown, so that
808	+	* the current testcase will fail.
809	+	*/
810	+	public void threadAssertSame(Object x, Object y) {
811	+	try {
812	+	assertSame(x, y);
813	+	} catch (AssertionFailedError fail) {
814	+	threadRecordFailure(fail);
815	+	throw fail;
816		}
817		}
818
819		/**
820	<	* threadFail with message "should throw exception"
820	>	* Calls threadFail with message "should throw exception".
821		*/
822		public void threadShouldThrow() {
823	<	threadFailed = true;
293	<	fail("should throw exception");
823	>	threadFail("should throw exception");
824		}
825
826		/**
827	<	* threadFail with message "Unexpected exception"
827	>	* Calls threadFail with message "should throw" + exceptionName.
828		*/
829	<	public void threadUnexpectedException() {
830	<	threadFailed = true;
301	<	fail("Unexpected exception");
829	>	public void threadShouldThrow(String exceptionName) {
830	>	threadFail("should throw " + exceptionName);
831		}
832
833		/**
834	<	* threadFail with message "Unexpected exception", with argument
834	>	* Records the given exception using {@link #threadRecordFailure},
835	>	* then rethrows the exception, wrapping it in an
836	>	* AssertionFailedError if necessary.
837		*/
838	<	public void threadUnexpectedException(Throwable ex) {
839	<	threadFailed = true;
840	<	ex.printStackTrace();
841	<	fail("Unexpected exception: " + ex);
838	>	public void threadUnexpectedException(Throwable t) {
839	>	threadRecordFailure(t);
840	>	t.printStackTrace();
841	>	if (t instanceof RuntimeException)
842	>	throw (RuntimeException) t;
843	>	else if (t instanceof Error)
844	>	throw (Error) t;
845	>	else {
846	>	AssertionFailedError afe =
847	>	new AssertionFailedError("unexpected exception: " + t);
848	>	afe.initCause(t);
849	>	throw afe;
850	>	}
851		}
852
853		/**
854	<	* Wait out termination of a thread pool or fail doing so
854	>	* Delays, via Thread.sleep, for the given millisecond delay, but
855	>	* if the sleep is shorter than specified, may re-sleep or yield
856	>	* until time elapses.  Ensures that the given time, as measured
857	>	* by System.nanoTime(), has elapsed.
858		*/
859	<	public void joinPool(ExecutorService exec) {
859	>	static void delay(long millis) throws InterruptedException {
860	>	long nanos = millis * (1000 * 1000);
861	>	final long wakeupTime = System.nanoTime() + nanos;
862	>	do {
863	>	if (millis > 0L)
864	>	Thread.sleep(millis);
865	>	else // too short to sleep
866	>	Thread.yield();
867	>	nanos = wakeupTime - System.nanoTime();
868	>	millis = nanos / (1000 * 1000);
869	>	} while (nanos >= 0L);
870	>	}
871	>
872	>	/**
873	>	* Allows use of try-with-resources with per-test thread pools.
874	>	*/
875	>	class PoolCleaner implements AutoCloseable {
876	>	private final ExecutorService pool;
877	>	public PoolCleaner(ExecutorService pool) { this.pool = pool; }
878	>	public void close() { joinPool(pool); }
879	>	}
880	>
881	>	/**
882	>	* An extension of PoolCleaner that has an action to release the pool.
883	>	*/
884	>	class PoolCleanerWithReleaser extends PoolCleaner {
885	>	private final Runnable releaser;
886	>	public PoolCleanerWithReleaser(ExecutorService pool, Runnable releaser) {
887	>	super(pool);
888	>	this.releaser = releaser;
889	>	}
890	>	public void close() {
891	>	try {
892	>	releaser.run();
893	>	} finally {
894	>	super.close();
895	>	}
896	>	}
897	>	}
898	>
899	>	PoolCleaner cleaner(ExecutorService pool) {
900	>	return new PoolCleaner(pool);
901	>	}
902	>
903	>	PoolCleaner cleaner(ExecutorService pool, Runnable releaser) {
904	>	return new PoolCleanerWithReleaser(pool, releaser);
905	>	}
906	>
907	>	PoolCleaner cleaner(ExecutorService pool, CountDownLatch latch) {
908	>	return new PoolCleanerWithReleaser(pool, releaser(latch));
909	>	}
910	>
911	>	Runnable releaser(final CountDownLatch latch) {
912	>	return new Runnable() { public void run() {
913	>	do { latch.countDown(); }
914	>	while (latch.getCount() > 0);
915	>	}};
916	>	}
917	>
918	>	PoolCleaner cleaner(ExecutorService pool, AtomicBoolean flag) {
919	>	return new PoolCleanerWithReleaser(pool, releaser(flag));
920	>	}
921	>
922	>	Runnable releaser(final AtomicBoolean flag) {
923	>	return new Runnable() { public void run() { flag.set(true); }};
924	>	}
925	>
926	>	/**
927	>	* Waits out termination of a thread pool or fails doing so.
928	>	*/
929	>	void joinPool(ExecutorService pool) {
930		try {
931	<	exec.shutdown();
932	<	assertTrue(exec.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
931	>	pool.shutdown();
932	>	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)) {
933	>	try {
934	>	threadFail("ExecutorService " + pool +
935	>	" did not terminate in a timely manner");
936	>	} finally {
937	>	// last resort, for the benefit of subsequent tests
938	>	pool.shutdownNow();
939	>	pool.awaitTermination(MEDIUM_DELAY_MS, MILLISECONDS);
940	>	}
941	>	}
942		} catch (SecurityException ok) {
943		// Allowed in case test doesn't have privs
944	<	} catch (InterruptedException ie) {
945	<	fail("Unexpected exception");
944	>	} catch (InterruptedException fail) {
945	>	threadFail("Unexpected InterruptedException");
946		}
947		}
948
949	+	/** Like Runnable, but with the freedom to throw anything */
950	+	interface Action { public void run() throws Throwable; }
951
952		/**
953	<	* fail with message "should throw exception"
953	>	* Runs all the given actions in parallel, failing if any fail.
954	>	* Useful for running multiple variants of tests that are
955	>	* necessarily individually slow because they must block.
956		*/
957	<	public void shouldThrow() {
958	<	fail("Should throw exception");
957	>	void testInParallel(Action ... actions) {
958	>	ExecutorService pool = Executors.newCachedThreadPool();
959	>	try (PoolCleaner cleaner = cleaner(pool)) {
960	>	ArrayList<Future<?>> futures = new ArrayList<>(actions.length);
961	>	for (final Action action : actions)
962	>	futures.add(pool.submit(new CheckedRunnable() {
963	>	public void realRun() throws Throwable { action.run();}}));
964	>	for (Future<?> future : futures)
965	>	try {
966	>	assertNull(future.get(LONG_DELAY_MS, MILLISECONDS));
967	>	} catch (ExecutionException ex) {
968	>	threadUnexpectedException(ex.getCause());
969	>	} catch (Exception ex) {
970	>	threadUnexpectedException(ex);
971	>	}
972	>	}
973	>	}
974	>
975	>	/**
976	>	* A debugging tool to print stack traces of most threads, as jstack does.
977	>	* Uninteresting threads are filtered out.
978	>	*/
979	>	static void dumpTestThreads() {
980	>	ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
981	>	System.err.println("------ stacktrace dump start ------");
982	>	for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) {
983	>	String name = info.getThreadName();
984	>	if ("Signal Dispatcher".equals(name))
985	>	continue;
986	>	if ("Reference Handler".equals(name)
987	>	&& info.getLockName().startsWith("java.lang.ref.Reference$Lock"))
988	>	continue;
989	>	if ("Finalizer".equals(name)
990	>	&& info.getLockName().startsWith("java.lang.ref.ReferenceQueue$Lock"))
991	>	continue;
992	>	if ("checkForWedgedTest".equals(name))
993	>	continue;
994	>	System.err.print(info);
995	>	}
996	>	System.err.println("------ stacktrace dump end ------");
997		}
998
999		/**
1000	<	* fail with message "Unexpected exception"
1000	>	* Checks that thread does not terminate within the default
1001	>	* millisecond delay of {@code timeoutMillis()}.
1002		*/
1003	<	public void unexpectedException() {
1004	<	fail("Unexpected exception");
1003	>	void assertThreadStaysAlive(Thread thread) {
1004	>	assertThreadStaysAlive(thread, timeoutMillis());
1005		}
1006
1007		/**
1008	<	* fail with message "Unexpected exception", with argument
1008	>	* Checks that thread does not terminate within the given millisecond delay.
1009		*/
1010	<	public void unexpectedException(Throwable ex) {
1011	<	ex.printStackTrace();
1012	<	fail("Unexpected exception: " + ex);
1010	>	void assertThreadStaysAlive(Thread thread, long millis) {
1011	>	try {
1012	>	// No need to optimize the failing case via Thread.join.
1013	>	delay(millis);
1014	>	assertTrue(thread.isAlive());
1015	>	} catch (InterruptedException fail) {
1016	>	threadFail("Unexpected InterruptedException");
1017	>	}
1018		}
1019
1020	+	/**
1021	+	* Checks that the threads do not terminate within the default
1022	+	* millisecond delay of {@code timeoutMillis()}.
1023	+	*/
1024	+	void assertThreadsStayAlive(Thread... threads) {
1025	+	assertThreadsStayAlive(timeoutMillis(), threads);
1026	+	}
1027	+
1028	+	/**
1029	+	* Checks that the threads do not terminate within the given millisecond delay.
1030	+	*/
1031	+	void assertThreadsStayAlive(long millis, Thread... threads) {
1032	+	try {
1033	+	// No need to optimize the failing case via Thread.join.
1034	+	delay(millis);
1035	+	for (Thread thread : threads)
1036	+	assertTrue(thread.isAlive());
1037	+	} catch (InterruptedException fail) {
1038	+	threadFail("Unexpected InterruptedException");
1039	+	}
1040	+	}
1041	+
1042	+	/**
1043	+	* Checks that future.get times out, with the default timeout of
1044	+	* {@code timeoutMillis()}.
1045	+	*/
1046	+	void assertFutureTimesOut(Future future) {
1047	+	assertFutureTimesOut(future, timeoutMillis());
1048	+	}
1049	+
1050	+	/**
1051	+	* Checks that future.get times out, with the given millisecond timeout.
1052	+	*/
1053	+	void assertFutureTimesOut(Future future, long timeoutMillis) {
1054	+	long startTime = System.nanoTime();
1055	+	try {
1056	+	future.get(timeoutMillis, MILLISECONDS);
1057	+	shouldThrow();
1058	+	} catch (TimeoutException success) {
1059	+	} catch (Exception fail) {
1060	+	threadUnexpectedException(fail);
1061	+	} finally { future.cancel(true); }
1062	+	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
1063	+	}
1064	+
1065	+	/**
1066	+	* Fails with message "should throw exception".
1067	+	*/
1068	+	public void shouldThrow() {
1069	+	fail("Should throw exception");
1070	+	}
1071	+
1072	+	/**
1073	+	* Fails with message "should throw " + exceptionName.
1074	+	*/
1075	+	public void shouldThrow(String exceptionName) {
1076	+	fail("Should throw " + exceptionName);
1077	+	}
1078
1079		/**
1080		* The number of elements to place in collections, arrays, etc.
1081		*/
1082	<	static final int SIZE = 20;
1082	>	public static final int SIZE = 20;
1083
1084		// Some convenient Integer constants
1085
1086	<	static final Integer zero = new Integer(0);
1087	<	static final Integer one = new Integer(1);
1088	<	static final Integer two = new Integer(2);
1089	<	static final Integer three  = new Integer(3);
1090	<	static final Integer four  = new Integer(4);
1091	<	static final Integer five  = new Integer(5);
1092	<	static final Integer six = new Integer(6);
1093	<	static final Integer seven = new Integer(7);
1094	<	static final Integer eight = new Integer(8);
1095	<	static final Integer nine = new Integer(9);
1096	<	static final Integer m1  = new Integer(-1);
1097	<	static final Integer m2  = new Integer(-2);
1098	<	static final Integer m3  = new Integer(-3);
1099	<	static final Integer m4 = new Integer(-4);
1100	<	static final Integer m5 = new Integer(-5);
1101	<	static final Integer m6 = new Integer(-6);
1102	<	static final Integer m10 = new Integer(-10);
1086	>	public static final Integer zero  = new Integer(0);
1087	>	public static final Integer one   = new Integer(1);
1088	>	public static final Integer two   = new Integer(2);
1089	>	public static final Integer three = new Integer(3);
1090	>	public static final Integer four  = new Integer(4);
1091	>	public static final Integer five  = new Integer(5);
1092	>	public static final Integer six   = new Integer(6);
1093	>	public static final Integer seven = new Integer(7);
1094	>	public static final Integer eight = new Integer(8);
1095	>	public static final Integer nine  = new Integer(9);
1096	>	public static final Integer m1  = new Integer(-1);
1097	>	public static final Integer m2  = new Integer(-2);
1098	>	public static final Integer m3  = new Integer(-3);
1099	>	public static final Integer m4  = new Integer(-4);
1100	>	public static final Integer m5  = new Integer(-5);
1101	>	public static final Integer m6  = new Integer(-6);
1102	>	public static final Integer m10 = new Integer(-10);
1103	>
1104	>	/**
1105	>	* Runs Runnable r with a security policy that permits precisely
1106	>	* the specified permissions.  If there is no current security
1107	>	* manager, the runnable is run twice, both with and without a
1108	>	* security manager.  We require that any security manager permit
1109	>	* getPolicy/setPolicy.
1110	>	*/
1111	>	public void runWithPermissions(Runnable r, Permission... permissions) {
1112	>	SecurityManager sm = System.getSecurityManager();
1113	>	if (sm == null) {
1114	>	r.run();
1115	>	}
1116	>	runWithSecurityManagerWithPermissions(r, permissions);
1117	>	}
1118	>
1119	>	/**
1120	>	* Runs Runnable r with a security policy that permits precisely
1121	>	* the specified permissions.  If there is no current security
1122	>	* manager, a temporary one is set for the duration of the
1123	>	* Runnable.  We require that any security manager permit
1124	>	* getPolicy/setPolicy.
1125	>	*/
1126	>	public void runWithSecurityManagerWithPermissions(Runnable r,
1127	>	Permission... permissions) {
1128	>	SecurityManager sm = System.getSecurityManager();
1129	>	if (sm == null) {
1130	>	Policy savedPolicy = Policy.getPolicy();
1131	>	try {
1132	>	Policy.setPolicy(permissivePolicy());
1133	>	System.setSecurityManager(new SecurityManager());
1134	>	runWithSecurityManagerWithPermissions(r, permissions);
1135	>	} finally {
1136	>	System.setSecurityManager(null);
1137	>	Policy.setPolicy(savedPolicy);
1138	>	}
1139	>	} else {
1140	>	Policy savedPolicy = Policy.getPolicy();
1141	>	AdjustablePolicy policy = new AdjustablePolicy(permissions);
1142	>	Policy.setPolicy(policy);
1143
1144	+	try {
1145	+	r.run();
1146	+	} finally {
1147	+	policy.addPermission(new SecurityPermission("setPolicy"));
1148	+	Policy.setPolicy(savedPolicy);
1149	+	}
1150	+	}
1151	+	}
1152	+
1153	+	/**
1154	+	* Runs a runnable without any permissions.
1155	+	*/
1156	+	public void runWithoutPermissions(Runnable r) {
1157	+	runWithPermissions(r);
1158	+	}
1159
1160		/**
1161		* A security policy where new permissions can be dynamically added
1162		* or all cleared.
1163		*/
1164	<	static class AdjustablePolicy extends java.security.Policy {
1164	>	public static class AdjustablePolicy extends java.security.Policy {
1165		Permissions perms = new Permissions();
1166	<	AdjustablePolicy() { }
1166	>	AdjustablePolicy(Permission... permissions) {
1167	>	for (Permission permission : permissions)
1168	>	perms.add(permission);
1169	>	}
1170		void addPermission(Permission perm) { perms.add(perm); }
1171		void clearPermissions() { perms = new Permissions(); }
1172	<	public PermissionCollection getPermissions(CodeSource cs) {
1173	<	return perms;
1174	<	}
1175	<	public PermissionCollection getPermissions(ProtectionDomain pd) {
1176	<	return perms;
1177	<	}
1178	<	public boolean implies(ProtectionDomain pd, Permission p) {
1179	<	return perms.implies(p);
1180	<	}
1181	<	public void refresh() {}
1172	>	public PermissionCollection getPermissions(CodeSource cs) {
1173	>	return perms;
1174	>	}
1175	>	public PermissionCollection getPermissions(ProtectionDomain pd) {
1176	>	return perms;
1177	>	}
1178	>	public boolean implies(ProtectionDomain pd, Permission p) {
1179	>	return perms.implies(p);
1180	>	}
1181	>	public void refresh() {}
1182	>	public String toString() {
1183	>	List<Permission> ps = new ArrayList<Permission>();
1184	>	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
1185	>	ps.add(e.nextElement());
1186	>	return "AdjustablePolicy with permissions " + ps;
1187	>	}
1188	>	}
1189	>
1190	>	/**
1191	>	* Returns a policy containing all the permissions we ever need.
1192	>	*/
1193	>	public static Policy permissivePolicy() {
1194	>	return new AdjustablePolicy
1195	>	// Permissions j.u.c. needs directly
1196	>	(new RuntimePermission("modifyThread"),
1197	>	new RuntimePermission("getClassLoader"),
1198	>	new RuntimePermission("setContextClassLoader"),
1199	>	// Permissions needed to change permissions!
1200	>	new SecurityPermission("getPolicy"),
1201	>	new SecurityPermission("setPolicy"),
1202	>	new RuntimePermission("setSecurityManager"),
1203	>	// Permissions needed by the junit test harness
1204	>	new RuntimePermission("accessDeclaredMembers"),
1205	>	new PropertyPermission("*", "read"),
1206	>	new java.io.FilePermission("<<ALL FILES>>", "read"));
1207	>	}
1208	>
1209	>	/**
1210	>	* Sleeps until the given time has elapsed.
1211	>	* Throws AssertionFailedError if interrupted.
1212	>	*/
1213	>	void sleep(long millis) {
1214	>	try {
1215	>	delay(millis);
1216	>	} catch (InterruptedException fail) {
1217	>	AssertionFailedError afe =
1218	>	new AssertionFailedError("Unexpected InterruptedException");
1219	>	afe.initCause(fail);
1220	>	throw afe;
1221	>	}
1222	>	}
1223	>
1224	>	/**
1225	>	* Spin-waits up to the specified number of milliseconds for the given
1226	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1227	>	*/
1228	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1229	>	long startTime = System.nanoTime();
1230	>	for (;;) {
1231	>	Thread.State s = thread.getState();
1232	>	if (s == Thread.State.BLOCKED ||
1233	>	s == Thread.State.WAITING ||
1234	>	s == Thread.State.TIMED_WAITING)
1235	>	return;
1236	>	else if (s == Thread.State.TERMINATED)
1237	>	fail("Unexpected thread termination");
1238	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
1239	>	threadAssertTrue(thread.isAlive());
1240	>	return;
1241	>	}
1242	>	Thread.yield();
1243	>	}
1244	>	}
1245	>
1246	>	/**
1247	>	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
1248	>	* state: BLOCKED, WAITING, or TIMED_WAITING.
1249	>	*/
1250	>	void waitForThreadToEnterWaitState(Thread thread) {
1251	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
1252	>	}
1253	>
1254	>	/**
1255	>	* Returns the number of milliseconds since time given by
1256	>	* startNanoTime, which must have been previously returned from a
1257	>	* call to {@link System#nanoTime()}.
1258	>	*/
1259	>	static long millisElapsedSince(long startNanoTime) {
1260	>	return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
1261		}
1262
1263	+	//     void assertTerminatesPromptly(long timeoutMillis, Runnable r) {
1264	+	//         long startTime = System.nanoTime();
1265	+	//         try {
1266	+	//             r.run();
1267	+	//         } catch (Throwable fail) { threadUnexpectedException(fail); }
1268	+	//         if (millisElapsedSince(startTime) > timeoutMillis/2)
1269	+	//             throw new AssertionFailedError("did not return promptly");
1270	+	//     }
1271	+
1272	+	//     void assertTerminatesPromptly(Runnable r) {
1273	+	//         assertTerminatesPromptly(LONG_DELAY_MS/2, r);
1274	+	//     }
1275	+
1276	+	/**
1277	+	* Checks that timed f.get() returns the expected value, and does not
1278	+	* wait for the timeout to elapse before returning.
1279	+	*/
1280	+	<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
1281	+	long startTime = System.nanoTime();
1282	+	try {
1283	+	assertEquals(expectedValue, f.get(timeoutMillis, MILLISECONDS));
1284	+	} catch (Throwable fail) { threadUnexpectedException(fail); }
1285	+	if (millisElapsedSince(startTime) > timeoutMillis/2)
1286	+	throw new AssertionFailedError("timed get did not return promptly");
1287	+	}
1288	+
1289	+	<T> void checkTimedGet(Future<T> f, T expectedValue) {
1290	+	checkTimedGet(f, expectedValue, LONG_DELAY_MS);
1291	+	}
1292	+
1293	+	/**
1294	+	* Returns a new started daemon Thread running the given runnable.
1295	+	*/
1296	+	Thread newStartedThread(Runnable runnable) {
1297	+	Thread t = new Thread(runnable);
1298	+	t.setDaemon(true);
1299	+	t.start();
1300	+	return t;
1301	+	}
1302	+
1303	+	/**
1304	+	* Waits for the specified time (in milliseconds) for the thread
1305	+	* to terminate (using {@link Thread#join(long)}), else interrupts
1306	+	* the thread (in the hope that it may terminate later) and fails.
1307	+	*/
1308	+	void awaitTermination(Thread t, long timeoutMillis) {
1309	+	try {
1310	+	t.join(timeoutMillis);
1311	+	} catch (InterruptedException fail) {
1312	+	threadUnexpectedException(fail);
1313	+	} finally {
1314	+	if (t.getState() != Thread.State.TERMINATED) {
1315	+	t.interrupt();
1316	+	threadFail("timed out waiting for thread to terminate");
1317	+	}
1318	+	}
1319	+	}
1320	+
1321	+	/**
1322	+	* Waits for LONG_DELAY_MS milliseconds for the thread to
1323	+	* terminate (using {@link Thread#join(long)}), else interrupts
1324	+	* the thread (in the hope that it may terminate later) and fails.
1325	+	*/
1326	+	void awaitTermination(Thread t) {
1327	+	awaitTermination(t, LONG_DELAY_MS);
1328	+	}
1329
1330		// Some convenient Runnable classes
1331
1332	<	abstract class CheckedRunnable implements Runnable {
1333	<	abstract void realRun() throws Throwable;
1332	>	public abstract class CheckedRunnable implements Runnable {
1333	>	protected abstract void realRun() throws Throwable;
1334
1335		public final void run() {
1336		try {
1337		realRun();
1338	+	} catch (Throwable fail) {
1339	+	threadUnexpectedException(fail);
1340	+	}
1341	+	}
1342	+	}
1343	+
1344	+	public abstract class RunnableShouldThrow implements Runnable {
1345	+	protected abstract void realRun() throws Throwable;
1346	+
1347	+	final Class<?> exceptionClass;
1348	+
1349	+	<T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) {
1350	+	this.exceptionClass = exceptionClass;
1351	+	}
1352	+
1353	+	public final void run() {
1354	+	try {
1355	+	realRun();
1356	+	threadShouldThrow(exceptionClass.getSimpleName());
1357		} catch (Throwable t) {
1358	<	threadUnexpectedException(t);
1358	>	if (! exceptionClass.isInstance(t))
1359	>	threadUnexpectedException(t);
1360		}
1361		}
1362		}
1363
1364	<	abstract class CheckedInterruptedRunnable implements Runnable {
1365	<	abstract void realRun() throws Throwable;
1364	>	public abstract class ThreadShouldThrow extends Thread {
1365	>	protected abstract void realRun() throws Throwable;
1366	>
1367	>	final Class<?> exceptionClass;
1368	>
1369	>	<T extends Throwable> ThreadShouldThrow(Class<T> exceptionClass) {
1370	>	this.exceptionClass = exceptionClass;
1371	>	}
1372
1373		public final void run() {
1374		try {
1375		realRun();
1376	<	threadShouldThrow();
420	<	} catch (InterruptedException success) {
1376	>	threadShouldThrow(exceptionClass.getSimpleName());
1377		} catch (Throwable t) {
1378	<	threadUnexpectedException(t);
1378	>	if (! exceptionClass.isInstance(t))
1379	>	threadUnexpectedException(t);
1380		}
1381		}
1382		}
1383
1384	<	abstract class CheckedCallable<T> implements Callable<T> {
1385	<	abstract T realCall() throws Throwable;
1384	>	public abstract class CheckedInterruptedRunnable implements Runnable {
1385	>	protected abstract void realRun() throws Throwable;
1386	>
1387	>	public final void run() {
1388	>	try {
1389	>	realRun();
1390	>	threadShouldThrow("InterruptedException");
1391	>	} catch (InterruptedException success) {
1392	>	threadAssertFalse(Thread.interrupted());
1393	>	} catch (Throwable fail) {
1394	>	threadUnexpectedException(fail);
1395	>	}
1396	>	}
1397	>	}
1398	>
1399	>	public abstract class CheckedCallable<T> implements Callable<T> {
1400	>	protected abstract T realCall() throws Throwable;
1401
1402		public final T call() {
1403		try {
1404		return realCall();
1405	<	} catch (Throwable t) {
1406	<	threadUnexpectedException(t);
1405	>	} catch (Throwable fail) {
1406	>	threadUnexpectedException(fail);
1407		return null;
1408		}
1409		}
1410		}
1411
1412	<	static class NoOpRunnable implements Runnable {
1412	>	public abstract class CheckedInterruptedCallable<T>
1413	>	implements Callable<T> {
1414	>	protected abstract T realCall() throws Throwable;
1415	>
1416	>	public final T call() {
1417	>	try {
1418	>	T result = realCall();
1419	>	threadShouldThrow("InterruptedException");
1420	>	return result;
1421	>	} catch (InterruptedException success) {
1422	>	threadAssertFalse(Thread.interrupted());
1423	>	} catch (Throwable fail) {
1424	>	threadUnexpectedException(fail);
1425	>	}
1426	>	return null;
1427	>	}
1428	>	}
1429	>
1430	>	public static class NoOpRunnable implements Runnable {
1431		public void run() {}
1432		}
1433
1434	<	static class NoOpCallable implements Callable {
1434	>	public static class NoOpCallable implements Callable {
1435		public Object call() { return Boolean.TRUE; }
1436		}
1437
1438	<	static final String TEST_STRING = "a test string";
1438	>	public static final String TEST_STRING = "a test string";
1439	>
1440	>	public static class StringTask implements Callable<String> {
1441	>	final String value;
1442	>	public StringTask() { this(TEST_STRING); }
1443	>	public StringTask(String value) { this.value = value; }
1444	>	public String call() { return value; }
1445	>	}
1446
1447	<	static class StringTask implements Callable<String> {
1448	<	public String call() { return TEST_STRING; }
1447	>	public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
1448	>	return new CheckedCallable<String>() {
1449	>	protected String realCall() {
1450	>	try {
1451	>	latch.await();
1452	>	} catch (InterruptedException quittingTime) {}
1453	>	return TEST_STRING;
1454	>	}};
1455	>	}
1456	>
1457	>	public Runnable countDowner(final CountDownLatch latch) {
1458	>	return new CheckedRunnable() {
1459	>	public void realRun() throws InterruptedException {
1460	>	latch.countDown();
1461	>	}};
1462	>	}
1463	>
1464	>	class LatchAwaiter extends CheckedRunnable {
1465	>	static final int NEW = 0;
1466	>	static final int RUNNING = 1;
1467	>	static final int DONE = 2;
1468	>	final CountDownLatch latch;
1469	>	int state = NEW;
1470	>	LatchAwaiter(CountDownLatch latch) { this.latch = latch; }
1471	>	public void realRun() throws InterruptedException {
1472	>	state = 1;
1473	>	await(latch);
1474	>	state = 2;
1475	>	}
1476		}
1477
1478	<	static class NPETask implements Callable<String> {
1478	>	public LatchAwaiter awaiter(CountDownLatch latch) {
1479	>	return new LatchAwaiter(latch);
1480	>	}
1481	>
1482	>	public void await(CountDownLatch latch, long timeoutMillis) {
1483	>	try {
1484	>	if (!latch.await(timeoutMillis, MILLISECONDS))
1485	>	fail("timed out waiting for CountDownLatch for "
1486	>	+ (timeoutMillis/1000) + " sec");
1487	>	} catch (Throwable fail) {
1488	>	threadUnexpectedException(fail);
1489	>	}
1490	>	}
1491	>
1492	>	public void await(CountDownLatch latch) {
1493	>	await(latch, LONG_DELAY_MS);
1494	>	}
1495	>
1496	>	public void await(Semaphore semaphore) {
1497	>	try {
1498	>	if (!semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS))
1499	>	fail("timed out waiting for Semaphore for "
1500	>	+ (LONG_DELAY_MS/1000) + " sec");
1501	>	} catch (Throwable fail) {
1502	>	threadUnexpectedException(fail);
1503	>	}
1504	>	}
1505	>
1506	>	//     /**
1507	>	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1508	>	//      */
1509	>	//     public void await(AtomicBoolean flag) {
1510	>	//         await(flag, LONG_DELAY_MS);
1511	>	//     }
1512	>
1513	>	//     /**
1514	>	//      * Spin-waits up to the specified timeout until flag becomes true.
1515	>	//      */
1516	>	//     public void await(AtomicBoolean flag, long timeoutMillis) {
1517	>	//         long startTime = System.nanoTime();
1518	>	//         while (!flag.get()) {
1519	>	//             if (millisElapsedSince(startTime) > timeoutMillis)
1520	>	//                 throw new AssertionFailedError("timed out");
1521	>	//             Thread.yield();
1522	>	//         }
1523	>	//     }
1524	>
1525	>	public static class NPETask implements Callable<String> {
1526		public String call() { throw new NullPointerException(); }
1527		}
1528
1529	<	static class CallableOne implements Callable<Integer> {
1529	>	public static class CallableOne implements Callable<Integer> {
1530		public Integer call() { return one; }
1531		}
1532
1533	<	class ShortRunnable extends CheckedRunnable {
1534	<	void realRun() throws Throwable {
1535	<	Thread.sleep(SHORT_DELAY_MS);
1533	>	public class ShortRunnable extends CheckedRunnable {
1534	>	protected void realRun() throws Throwable {
1535	>	delay(SHORT_DELAY_MS);
1536		}
1537		}
1538
1539	<	class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1540	<	void realRun() throws InterruptedException {
1541	<	Thread.sleep(SHORT_DELAY_MS);
1539	>	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1540	>	protected void realRun() throws InterruptedException {
1541	>	delay(SHORT_DELAY_MS);
1542		}
1543		}
1544
1545	<	class SmallRunnable extends CheckedRunnable {
1546	<	void realRun() throws Throwable {
1547	<	Thread.sleep(SMALL_DELAY_MS);
1545	>	public class SmallRunnable extends CheckedRunnable {
1546	>	protected void realRun() throws Throwable {
1547	>	delay(SMALL_DELAY_MS);
1548		}
1549		}
1550
1551	<	class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1552	<	void realRun() {
1551	>	public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1552	>	protected void realRun() {
1553		try {
1554	<	Thread.sleep(SMALL_DELAY_MS);
1555	<	}
485	<	catch (InterruptedException ok) {
486	<	}
1554	>	delay(SMALL_DELAY_MS);
1555	>	} catch (InterruptedException ok) {}
1556		}
1557		}
1558
1559	<	class SmallCallable extends CheckedCallable {
1560	<	Object realCall() throws Throwable {
1561	<	Thread.sleep(SMALL_DELAY_MS);
1559	>	public class SmallCallable extends CheckedCallable {
1560	>	protected Object realCall() throws InterruptedException {
1561	>	delay(SMALL_DELAY_MS);
1562		return Boolean.TRUE;
1563		}
1564		}
1565
1566	<	class SmallInterruptedRunnable extends CheckedInterruptedRunnable {
1567	<	void realRun() throws InterruptedException {
1568	<	Thread.sleep(SMALL_DELAY_MS);
1566	>	public class MediumRunnable extends CheckedRunnable {
1567	>	protected void realRun() throws Throwable {
1568	>	delay(MEDIUM_DELAY_MS);
1569		}
1570		}
1571
1572	<	class MediumRunnable extends CheckedRunnable {
1573	<	void realRun() throws Throwable {
1574	<	Thread.sleep(MEDIUM_DELAY_MS);
1572	>	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1573	>	protected void realRun() throws InterruptedException {
1574	>	delay(MEDIUM_DELAY_MS);
1575		}
1576		}
1577
1578	<	class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1579	<	void realRun() throws InterruptedException {
1580	<	Thread.sleep(MEDIUM_DELAY_MS);
1581	<	}
1578	>	public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1579	>	return new CheckedRunnable() {
1580	>	protected void realRun() {
1581	>	try {
1582	>	delay(timeoutMillis);
1583	>	} catch (InterruptedException ok) {}
1584	>	}};
1585		}
1586
1587	<	class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1588	<	void realRun() {
1587	>	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1588	>	protected void realRun() {
1589		try {
1590	<	Thread.sleep(MEDIUM_DELAY_MS);
1591	<	}
520	<	catch (InterruptedException ok) {
521	<	}
1590	>	delay(MEDIUM_DELAY_MS);
1591	>	} catch (InterruptedException ok) {}
1592		}
1593		}
1594
1595	<	class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1596	<	void realRun() {
1595	>	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1596	>	protected void realRun() {
1597		try {
1598	<	Thread.sleep(LONG_DELAY_MS);
1599	<	}
530	<	catch (InterruptedException ok) {
531	<	}
1598	>	delay(LONG_DELAY_MS);
1599	>	} catch (InterruptedException ok) {}
1600		}
1601		}
1602
1603		/**
1604		* For use as ThreadFactory in constructors
1605		*/
1606	<	static class SimpleThreadFactory implements ThreadFactory {
1606	>	public static class SimpleThreadFactory implements ThreadFactory {
1607		public Thread newThread(Runnable r) {
1608		return new Thread(r);
1609		}
1610		}
1611
1612	<	static class TrackedShortRunnable implements Runnable {
1613	<	volatile boolean done = false;
1612	>	public interface TrackedRunnable extends Runnable {
1613	>	boolean isDone();
1614	>	}
1615	>
1616	>	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1617	>	return new TrackedRunnable() {
1618	>	private volatile boolean done = false;
1619	>	public boolean isDone() { return done; }
1620	>	public void run() {
1621	>	try {
1622	>	delay(timeoutMillis);
1623	>	done = true;
1624	>	} catch (InterruptedException ok) {}
1625	>	}
1626	>	};
1627	>	}
1628	>
1629	>	public static class TrackedShortRunnable implements Runnable {
1630	>	public volatile boolean done = false;
1631		public void run() {
1632		try {
1633	<	Thread.sleep(SMALL_DELAY_MS);
1633	>	delay(SHORT_DELAY_MS);
1634		done = true;
1635	<	} catch (Exception e) {
551	<	}
1635	>	} catch (InterruptedException ok) {}
1636		}
1637		}
1638
1639	<	static class TrackedMediumRunnable implements Runnable {
1640	<	volatile boolean done = false;
1639	>	public static class TrackedSmallRunnable implements Runnable {
1640	>	public volatile boolean done = false;
1641		public void run() {
1642		try {
1643	<	Thread.sleep(MEDIUM_DELAY_MS);
1643	>	delay(SMALL_DELAY_MS);
1644		done = true;
1645	<	} catch (Exception e) {
562	<	}
1645	>	} catch (InterruptedException ok) {}
1646		}
1647		}
1648
1649	<	static class TrackedLongRunnable implements Runnable {
1650	<	volatile boolean done = false;
1649	>	public static class TrackedMediumRunnable implements Runnable {
1650	>	public volatile boolean done = false;
1651		public void run() {
1652		try {
1653	<	Thread.sleep(LONG_DELAY_MS);
1653	>	delay(MEDIUM_DELAY_MS);
1654		done = true;
1655	<	} catch (Exception e) {
1656	<	}
1655	>	} catch (InterruptedException ok) {}
1656	>	}
1657	>	}
1658	>
1659	>	public static class TrackedLongRunnable implements Runnable {
1660	>	public volatile boolean done = false;
1661	>	public void run() {
1662	>	try {
1663	>	delay(LONG_DELAY_MS);
1664	>	done = true;
1665	>	} catch (InterruptedException ok) {}
1666		}
1667		}
1668
1669	<	static class TrackedNoOpRunnable implements Runnable {
1670	<	volatile boolean done = false;
1669	>	public static class TrackedNoOpRunnable implements Runnable {
1670	>	public volatile boolean done = false;
1671		public void run() {
1672		done = true;
1673		}
1674		}
1675
1676	<	static class TrackedCallable implements Callable {
1677	<	volatile boolean done = false;
1676	>	public static class TrackedCallable implements Callable {
1677	>	public volatile boolean done = false;
1678		public Object call() {
1679		try {
1680	<	Thread.sleep(SMALL_DELAY_MS);
1680	>	delay(SMALL_DELAY_MS);
1681		done = true;
1682	<	} catch (Exception e) {
591	<	}
1682	>	} catch (InterruptedException ok) {}
1683		return Boolean.TRUE;
1684		}
1685		}
1686
1687	+	/**
1688	+	* Analog of CheckedRunnable for RecursiveAction
1689	+	*/
1690	+	public abstract class CheckedRecursiveAction extends RecursiveAction {
1691	+	protected abstract void realCompute() throws Throwable;
1692	+
1693	+	@Override protected final void compute() {
1694	+	try {
1695	+	realCompute();
1696	+	} catch (Throwable fail) {
1697	+	threadUnexpectedException(fail);
1698	+	}
1699	+	}
1700	+	}
1701	+
1702	+	/**
1703	+	* Analog of CheckedCallable for RecursiveTask
1704	+	*/
1705	+	public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1706	+	protected abstract T realCompute() throws Throwable;
1707	+
1708	+	@Override protected final T compute() {
1709	+	try {
1710	+	return realCompute();
1711	+	} catch (Throwable fail) {
1712	+	threadUnexpectedException(fail);
1713	+	return null;
1714	+	}
1715	+	}
1716	+	}
1717
1718		/**
1719		* For use as RejectedExecutionHandler in constructors
1720		*/
1721	<	static class NoOpREHandler implements RejectedExecutionHandler {
1721	>	public static class NoOpREHandler implements RejectedExecutionHandler {
1722		public void rejectedExecution(Runnable r,
1723		ThreadPoolExecutor executor) {}
1724		}
1725
1726	+	/**
1727	+	* A CyclicBarrier that uses timed await and fails with
1728	+	* AssertionFailedErrors instead of throwing checked exceptions.
1729	+	*/
1730	+	public class CheckedBarrier extends CyclicBarrier {
1731	+	public CheckedBarrier(int parties) { super(parties); }
1732	+
1733	+	public int await() {
1734	+	try {
1735	+	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1736	+	} catch (TimeoutException timedOut) {
1737	+	throw new AssertionFailedError("timed out");
1738	+	} catch (Exception fail) {
1739	+	AssertionFailedError afe =
1740	+	new AssertionFailedError("Unexpected exception: " + fail);
1741	+	afe.initCause(fail);
1742	+	throw afe;
1743	+	}
1744	+	}
1745	+	}
1746	+
1747	+	void checkEmpty(BlockingQueue q) {
1748	+	try {
1749	+	assertTrue(q.isEmpty());
1750	+	assertEquals(0, q.size());
1751	+	assertNull(q.peek());
1752	+	assertNull(q.poll());
1753	+	assertNull(q.poll(0, MILLISECONDS));
1754	+	assertEquals(q.toString(), "[]");
1755	+	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1756	+	assertFalse(q.iterator().hasNext());
1757	+	try {
1758	+	q.element();
1759	+	shouldThrow();
1760	+	} catch (NoSuchElementException success) {}
1761	+	try {
1762	+	q.iterator().next();
1763	+	shouldThrow();
1764	+	} catch (NoSuchElementException success) {}
1765	+	try {
1766	+	q.remove();
1767	+	shouldThrow();
1768	+	} catch (NoSuchElementException success) {}
1769	+	} catch (InterruptedException fail) { threadUnexpectedException(fail); }
1770	+	}
1771	+
1772	+	void assertSerialEquals(Object x, Object y) {
1773	+	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1774	+	}
1775	+
1776	+	void assertNotSerialEquals(Object x, Object y) {
1777	+	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1778	+	}
1779	+
1780	+	byte[] serialBytes(Object o) {
1781	+	try {
1782	+	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1783	+	ObjectOutputStream oos = new ObjectOutputStream(bos);
1784	+	oos.writeObject(o);
1785	+	oos.flush();
1786	+	oos.close();
1787	+	return bos.toByteArray();
1788	+	} catch (Throwable fail) {
1789	+	threadUnexpectedException(fail);
1790	+	return new byte[0];
1791	+	}
1792	+	}
1793	+
1794	+	@SuppressWarnings("unchecked")
1795	+	<T> T serialClone(T o) {
1796	+	try {
1797	+	ObjectInputStream ois = new ObjectInputStream
1798	+	(new ByteArrayInputStream(serialBytes(o)));
1799	+	T clone = (T) ois.readObject();
1800	+	assertSame(o.getClass(), clone.getClass());
1801	+	return clone;
1802	+	} catch (Throwable fail) {
1803	+	threadUnexpectedException(fail);
1804	+	return null;
1805	+	}
1806	+	}
1807	+
1808	+	public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1809	+	Runnable... throwingActions) {
1810	+	for (Runnable throwingAction : throwingActions) {
1811	+	boolean threw = false;
1812	+	try { throwingAction.run(); }
1813	+	catch (Throwable t) {
1814	+	threw = true;
1815	+	if (!expectedExceptionClass.isInstance(t)) {
1816	+	AssertionFailedError afe =
1817	+	new AssertionFailedError
1818	+	("Expected " + expectedExceptionClass.getName() +
1819	+	", got " + t.getClass().getName());
1820	+	afe.initCause(t);
1821	+	threadUnexpectedException(afe);
1822	+	}
1823	+	}
1824	+	if (!threw)
1825	+	shouldThrow(expectedExceptionClass.getName());
1826	+	}
1827	+	}
1828	+
1829	+	public void assertIteratorExhausted(Iterator<?> it) {
1830	+	try {
1831	+	it.next();
1832	+	shouldThrow();
1833	+	} catch (NoSuchElementException success) {}
1834	+	assertFalse(it.hasNext());
1835	+	}
1836	+
1837	+	public <T> Callable<T> callableThrowing(final Exception ex) {
1838	+	return new Callable<T>() { public T call() throws Exception { throw ex; }};
1839	+	}
1840	+
1841	+	public Runnable runnableThrowing(final RuntimeException ex) {
1842	+	return new Runnable() { public void run() { throw ex; }};
1843	+	}
1844		}

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