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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.49 by jsr166, Tue Jan 5 02:08:37 2010 UTC vs.
Revision 1.207 by jsr166, Thu Nov 3 20:41:32 2016 UTC

#	Line 1 | Line 1
1		/*
2		* Written by Doug Lea with assistance from members of JCP JSR-166
3		* Expert Group and released to the public domain, as explained at
4	<	* http://creativecommons.org/licenses/publicdomain
4	>	* http://creativecommons.org/publicdomain/zero/1.0/
5		* Other contributors include Andrew Wright, Jeffrey Hayes,
6		* Pat Fisher, Mike Judd.
7		*/
8
9	<	import junit.framework.*;
10	<	import java.util.*;
11	<	import java.util.concurrent.*;
9	>	/*
10	>	* @test
11	>	* @summary JSR-166 tck tests
12	>	* @modules java.management
13	>	* @build *
14	>	* @run junit/othervm/timeout=1000 -Djsr166.testImplementationDetails=true JSR166TestCase
15	>	* @run junit/othervm/timeout=1000 -Djava.util.concurrent.ForkJoinPool.common.parallelism=0 -Djsr166.testImplementationDetails=true JSR166TestCase
16	>	* @run junit/othervm/timeout=1000 -Djava.util.concurrent.ForkJoinPool.common.parallelism=1 -Djava.util.secureRandomSeed=true JSR166TestCase
17	>	*/
18	>
19		import static java.util.concurrent.TimeUnit.MILLISECONDS;
20	<	import java.io.*;
21	<	import java.security.*;
20	>	import static java.util.concurrent.TimeUnit.MINUTES;
21	>	import static java.util.concurrent.TimeUnit.NANOSECONDS;
22	>
23	>	import java.io.ByteArrayInputStream;
24	>	import java.io.ByteArrayOutputStream;
25	>	import java.io.ObjectInputStream;
26	>	import java.io.ObjectOutputStream;
27	>	import java.lang.management.ManagementFactory;
28	>	import java.lang.management.ThreadInfo;
29	>	import java.lang.management.ThreadMXBean;
30	>	import java.lang.reflect.Constructor;
31	>	import java.lang.reflect.Method;
32	>	import java.lang.reflect.Modifier;
33	>	import java.nio.file.Files;
34	>	import java.nio.file.Paths;
35	>	import java.security.CodeSource;
36	>	import java.security.Permission;
37	>	import java.security.PermissionCollection;
38	>	import java.security.Permissions;
39	>	import java.security.Policy;
40	>	import java.security.ProtectionDomain;
41	>	import java.security.SecurityPermission;
42	>	import java.util.ArrayList;
43	>	import java.util.Arrays;
44	>	import java.util.Collections;
45	>	import java.util.Date;
46	>	import java.util.Enumeration;
47	>	import java.util.Iterator;
48	>	import java.util.List;
49	>	import java.util.NoSuchElementException;
50	>	import java.util.PropertyPermission;
51	>	import java.util.concurrent.BlockingQueue;
52	>	import java.util.concurrent.Callable;
53	>	import java.util.concurrent.CountDownLatch;
54	>	import java.util.concurrent.CyclicBarrier;
55	>	import java.util.concurrent.ExecutionException;
56	>	import java.util.concurrent.Executors;
57	>	import java.util.concurrent.ExecutorService;
58	>	import java.util.concurrent.ForkJoinPool;
59	>	import java.util.concurrent.Future;
60	>	import java.util.concurrent.RecursiveAction;
61	>	import java.util.concurrent.RecursiveTask;
62	>	import java.util.concurrent.RejectedExecutionHandler;
63	>	import java.util.concurrent.Semaphore;
64	>	import java.util.concurrent.SynchronousQueue;
65	>	import java.util.concurrent.ThreadFactory;
66	>	import java.util.concurrent.ThreadLocalRandom;
67	>	import java.util.concurrent.ThreadPoolExecutor;
68	>	import java.util.concurrent.TimeoutException;
69	>	import java.util.concurrent.atomic.AtomicBoolean;
70	>	import java.util.concurrent.atomic.AtomicReference;
71	>	import java.util.regex.Matcher;
72	>	import java.util.regex.Pattern;
73	>
74	>	import junit.framework.AssertionFailedError;
75	>	import junit.framework.Test;
76	>	import junit.framework.TestCase;
77	>	import junit.framework.TestResult;
78	>	import junit.framework.TestSuite;
79
80		/**
81		* Base class for JSR166 Junit TCK tests.  Defines some constants,
#	Line 23 | Line 87 | import java.security.*;
87		*
88		* <ol>
89		*
90	<	* <li> All assertions in code running in generated threads must use
90	>	* <li>All assertions in code running in generated threads must use
91		* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link
92		* #threadAssertEquals}, or {@link #threadAssertNull}, (not
93	<	* <tt>fail</tt>, <tt>assertTrue</tt>, etc.) It is OK (but not
93	>	* {@code fail}, {@code assertTrue}, etc.) It is OK (but not
94		* particularly recommended) for other code to use these forms too.
95		* Only the most typically used JUnit assertion methods are defined
96	<	* this way, but enough to live with.</li>
96	>	* this way, but enough to live with.
97		*
98	<	* <li> If you override {@link #setUp} or {@link #tearDown}, make sure
99	<	* to invoke <tt>super.setUp</tt> and <tt>super.tearDown</tt> within
98	>	* <li>If you override {@link #setUp} or {@link #tearDown}, make sure
99	>	* to invoke {@code super.setUp} and {@code super.tearDown} within
100		* them. These methods are used to clear and check for thread
101	<	* assertion failures.</li>
101	>	* assertion failures.
102		*
103	<	* <li>All delays and timeouts must use one of the constants <tt>
104	<	* SHORT_DELAY_MS</tt>, <tt> SMALL_DELAY_MS</tt>, <tt> MEDIUM_DELAY_MS</tt>,
105	<	* <tt> LONG_DELAY_MS</tt>. The idea here is that a SHORT is always
103	>	* <li>All delays and timeouts must use one of the constants {@code
104	>	* SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS},
105	>	* {@code LONG_DELAY_MS}. The idea here is that a SHORT is always
106		* discriminable from zero time, and always allows enough time for the
107		* small amounts of computation (creating a thread, calling a few
108		* methods, etc) needed to reach a timeout point. Similarly, a SMALL
109		* is always discriminable as larger than SHORT and smaller than
110		* MEDIUM.  And so on. These constants are set to conservative values,
111		* but even so, if there is ever any doubt, they can all be increased
112	<	* in one spot to rerun tests on slower platforms.</li>
112	>	* in one spot to rerun tests on slower platforms.
113		*
114	<	* <li> All threads generated must be joined inside each test case
115	<	* method (or <tt>fail</tt> to do so) before returning from the
116	<	* method. The <tt> joinPool</tt> method can be used to do this when
117	<	* using Executors.</li>
114	>	* <li>All threads generated must be joined inside each test case
115	>	* method (or {@code fail} to do so) before returning from the
116	>	* method. The {@code joinPool} method can be used to do this when
117	>	* using Executors.
118		*
119		* </ol>
120		*
121	<	* <p> <b>Other notes</b>
121	>	* <p><b>Other notes</b>
122		* <ul>
123		*
124	<	* <li> Usually, there is one testcase method per JSR166 method
124	>	* <li>Usually, there is one testcase method per JSR166 method
125		* covering "normal" operation, and then as many exception-testing
126		* methods as there are exceptions the method can throw. Sometimes
127		* there are multiple tests per JSR166 method when the different
128		* "normal" behaviors differ significantly. And sometimes testcases
129	<	* cover multiple methods when they cannot be tested in
66	<	* isolation.</li>
129	>	* cover multiple methods when they cannot be tested in isolation.
130		*
131	<	* <li> The documentation style for testcases is to provide as javadoc
131	>	* <li>The documentation style for testcases is to provide as javadoc
132		* a simple sentence or two describing the property that the testcase
133		* method purports to test. The javadocs do not say anything about how
134	<	* the property is tested. To find out, read the code.</li>
134	>	* the property is tested. To find out, read the code.
135		*
136	<	* <li> These tests are "conformance tests", and do not attempt to
136	>	* <li>These tests are "conformance tests", and do not attempt to
137		* test throughput, latency, scalability or other performance factors
138		* (see the separate "jtreg" tests for a set intended to check these
139		* for the most central aspects of functionality.) So, most tests use
140		* the smallest sensible numbers of threads, collection sizes, etc
141	<	* needed to check basic conformance.</li>
141	>	* needed to check basic conformance.
142		*
143		* <li>The test classes currently do not declare inclusion in
144		* any particular package to simplify things for people integrating
145	<	* them in TCK test suites.</li>
145	>	* them in TCK test suites.
146		*
147	<	* <li> As a convenience, the <tt>main</tt> of this class (JSR166TestCase)
148	<	* runs all JSR166 unit tests.</li>
147	>	* <li>As a convenience, the {@code main} of this class (JSR166TestCase)
148	>	* runs all JSR166 unit tests.
149		*
150		* </ul>
151		*/
#	Line 90 | Line 153 | public class JSR166TestCase extends Test
153		private static final boolean useSecurityManager =
154		Boolean.getBoolean("jsr166.useSecurityManager");
155
156	+	protected static final boolean expensiveTests =
157	+	Boolean.getBoolean("jsr166.expensiveTests");
158	+
159	+	/**
160	+	* If true, also run tests that are not part of the official tck
161	+	* because they test unspecified implementation details.
162	+	*/
163	+	protected static final boolean testImplementationDetails =
164	+	Boolean.getBoolean("jsr166.testImplementationDetails");
165	+
166	+	/**
167	+	* If true, report on stdout all "slow" tests, that is, ones that
168	+	* take more than profileThreshold milliseconds to execute.
169	+	*/
170	+	private static final boolean profileTests =
171	+	Boolean.getBoolean("jsr166.profileTests");
172	+
173	+	/**
174	+	* The number of milliseconds that tests are permitted for
175	+	* execution without being reported, when profileTests is set.
176	+	*/
177	+	private static final long profileThreshold =
178	+	Long.getLong("jsr166.profileThreshold", 100);
179	+
180	+	/**
181	+	* The number of repetitions per test (for tickling rare bugs).
182	+	*/
183	+	private static final int runsPerTest =
184	+	Integer.getInteger("jsr166.runsPerTest", 1);
185	+
186	+	/**
187	+	* The number of repetitions of the test suite (for finding leaks?).
188	+	*/
189	+	private static final int suiteRuns =
190	+	Integer.getInteger("jsr166.suiteRuns", 1);
191	+
192	+	/**
193	+	* Returns the value of the system property, or NaN if not defined.
194	+	*/
195	+	private static float systemPropertyValue(String name) {
196	+	String floatString = System.getProperty(name);
197	+	if (floatString == null)
198	+	return Float.NaN;
199	+	try {
200	+	return Float.parseFloat(floatString);
201	+	} catch (NumberFormatException ex) {
202	+	throw new IllegalArgumentException(
203	+	String.format("Bad float value in system property %s=%s",
204	+	name, floatString));
205	+	}
206	+	}
207	+
208	+	/**
209	+	* The scaling factor to apply to standard delays used in tests.
210	+	* May be initialized from any of:
211	+	* - the "jsr166.delay.factor" system property
212	+	* - the "test.timeout.factor" system property (as used by jtreg)
213	+	*   See: http://openjdk.java.net/jtreg/tag-spec.html
214	+	* - hard-coded fuzz factor when using a known slowpoke VM
215	+	*/
216	+	private static final float delayFactor = delayFactor();
217	+
218	+	private static float delayFactor() {
219	+	float x;
220	+	if (!Float.isNaN(x = systemPropertyValue("jsr166.delay.factor")))
221	+	return x;
222	+	if (!Float.isNaN(x = systemPropertyValue("test.timeout.factor")))
223	+	return x;
224	+	String prop = System.getProperty("java.vm.version");
225	+	if (prop != null && prop.matches(".*debug.*"))
226	+	return 4.0f; // How much slower is fastdebug than product?!
227	+	return 1.0f;
228	+	}
229	+
230	+	public JSR166TestCase() { super(); }
231	+	public JSR166TestCase(String name) { super(name); }
232	+
233	+	/**
234	+	* A filter for tests to run, matching strings of the form
235	+	* methodName(className), e.g. "testInvokeAll5(ForkJoinPoolTest)"
236	+	* Usefully combined with jsr166.runsPerTest.
237	+	*/
238	+	private static final Pattern methodFilter = methodFilter();
239	+
240	+	private static Pattern methodFilter() {
241	+	String regex = System.getProperty("jsr166.methodFilter");
242	+	return (regex == null) ? null : Pattern.compile(regex);
243	+	}
244	+
245	+	// Instrumentation to debug very rare, but very annoying hung test runs.
246	+	static volatile TestCase currentTestCase;
247	+	// static volatile int currentRun = 0;
248	+	static {
249	+	Runnable checkForWedgedTest = new Runnable() { public void run() {
250	+	// Avoid spurious reports with enormous runsPerTest.
251	+	// A single test case run should never take more than 1 second.
252	+	// But let's cap it at the high end too ...
253	+	final int timeoutMinutes =
254	+	Math.min(15, Math.max(runsPerTest / 60, 1));
255	+	for (TestCase lastTestCase = currentTestCase;;) {
256	+	try { MINUTES.sleep(timeoutMinutes); }
257	+	catch (InterruptedException unexpected) { break; }
258	+	if (lastTestCase == currentTestCase) {
259	+	System.err.printf(
260	+	"Looks like we're stuck running test: %s%n",
261	+	lastTestCase);
262	+	//                     System.err.printf(
263	+	//                         "Looks like we're stuck running test: %s (%d/%d)%n",
264	+	//                         lastTestCase, currentRun, runsPerTest);
265	+	//                     System.err.println("availableProcessors=" +
266	+	//                         Runtime.getRuntime().availableProcessors());
267	+	//                     System.err.printf("cpu model = %s%n", cpuModel());
268	+	dumpTestThreads();
269	+	// one stack dump is probably enough; more would be spam
270	+	break;
271	+	}
272	+	lastTestCase = currentTestCase;
273	+	}}};
274	+	Thread thread = new Thread(checkForWedgedTest, "checkForWedgedTest");
275	+	thread.setDaemon(true);
276	+	thread.start();
277	+	}
278	+
279	+	//     public static String cpuModel() {
280	+	//         try {
281	+	//             Matcher matcher = Pattern.compile("model name\\s*: (.*)")
282	+	//                 .matcher(new String(
283	+	//                      Files.readAllBytes(Paths.get("/proc/cpuinfo")), "UTF-8"));
284	+	//             matcher.find();
285	+	//             return matcher.group(1);
286	+	//         } catch (Exception ex) { return null; }
287	+	//     }
288	+
289	+	public void runBare() throws Throwable {
290	+	currentTestCase = this;
291	+	if (methodFilter == null
292	+	|| methodFilter.matcher(toString()).find())
293	+	super.runBare();
294	+	}
295	+
296	+	protected void runTest() throws Throwable {
297	+	for (int i = 0; i < runsPerTest; i++) {
298	+	// currentRun = i;
299	+	if (profileTests)
300	+	runTestProfiled();
301	+	else
302	+	super.runTest();
303	+	}
304	+	}
305	+
306	+	protected void runTestProfiled() throws Throwable {
307	+	for (int i = 0; i < 2; i++) {
308	+	long startTime = System.nanoTime();
309	+	super.runTest();
310	+	long elapsedMillis = millisElapsedSince(startTime);
311	+	if (elapsedMillis < profileThreshold)
312	+	break;
313	+	// Never report first run of any test; treat it as a
314	+	// warmup run, notably to trigger all needed classloading,
315	+	if (i > 0)
316	+	System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
317	+	}
318	+	}
319	+
320		/**
321	<	* Runs all JSR166 unit tests using junit.textui.TestRunner
321	>	* Runs all JSR166 unit tests using junit.textui.TestRunner.
322		*/
323		public static void main(String[] args) {
324	+	main(suite(), args);
325	+	}
326	+
327	+	static class PithyResultPrinter extends junit.textui.ResultPrinter {
328	+	PithyResultPrinter(java.io.PrintStream writer) { super(writer); }
329	+	long runTime;
330	+	public void startTest(Test test) {}
331	+	protected void printHeader(long runTime) {
332	+	this.runTime = runTime; // defer printing for later
333	+	}
334	+	protected void printFooter(TestResult result) {
335	+	if (result.wasSuccessful()) {
336	+	getWriter().println("OK (" + result.runCount() + " tests)"
337	+	+ "  Time: " + elapsedTimeAsString(runTime));
338	+	} else {
339	+	getWriter().println("Time: " + elapsedTimeAsString(runTime));
340	+	super.printFooter(result);
341	+	}
342	+	}
343	+	}
344	+
345	+	/**
346	+	* Returns a TestRunner that doesn't bother with unnecessary
347	+	* fluff, like printing a "." for each test case.
348	+	*/
349	+	static junit.textui.TestRunner newPithyTestRunner() {
350	+	junit.textui.TestRunner runner = new junit.textui.TestRunner();
351	+	runner.setPrinter(new PithyResultPrinter(System.out));
352	+	return runner;
353	+	}
354	+
355	+	/**
356	+	* Runs all unit tests in the given test suite.
357	+	* Actual behavior influenced by jsr166.* system properties.
358	+	*/
359	+	static void main(Test suite, String[] args) {
360		if (useSecurityManager) {
361		System.err.println("Setting a permissive security manager");
362		Policy.setPolicy(permissivePolicy());
363		System.setSecurityManager(new SecurityManager());
364		}
365	<	int iters = 1;
366	<	if (args.length > 0)
367	<	iters = Integer.parseInt(args[0]);
368	<	Test s = suite();
106	<	for (int i = 0; i < iters; ++i) {
107	<	junit.textui.TestRunner.run(s);
365	>	for (int i = 0; i < suiteRuns; i++) {
366	>	TestResult result = newPithyTestRunner().doRun(suite);
367	>	if (!result.wasSuccessful())
368	>	System.exit(1);
369		System.gc();
370		System.runFinalization();
371		}
372	<	System.exit(0);
372	>	}
373	>
374	>	public static TestSuite newTestSuite(Object... suiteOrClasses) {
375	>	TestSuite suite = new TestSuite();
376	>	for (Object suiteOrClass : suiteOrClasses) {
377	>	if (suiteOrClass instanceof TestSuite)
378	>	suite.addTest((TestSuite) suiteOrClass);
379	>	else if (suiteOrClass instanceof Class)
380	>	suite.addTest(new TestSuite((Class<?>) suiteOrClass));
381	>	else
382	>	throw new ClassCastException("not a test suite or class");
383	>	}
384	>	return suite;
385	>	}
386	>
387	>	public static void addNamedTestClasses(TestSuite suite,
388	>	String... testClassNames) {
389	>	for (String testClassName : testClassNames) {
390	>	try {
391	>	Class<?> testClass = Class.forName(testClassName);
392	>	Method m = testClass.getDeclaredMethod("suite",
393	>	new Class<?>[0]);
394	>	suite.addTest(newTestSuite((Test)m.invoke(null)));
395	>	} catch (Exception e) {
396	>	throw new Error("Missing test class", e);
397	>	}
398	>	}
399	>	}
400	>
401	>	public static final double JAVA_CLASS_VERSION;
402	>	public static final String JAVA_SPECIFICATION_VERSION;
403	>	static {
404	>	try {
405	>	JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
406	>	new java.security.PrivilegedAction<Double>() {
407	>	public Double run() {
408	>	return Double.valueOf(System.getProperty("java.class.version"));}});
409	>	JAVA_SPECIFICATION_VERSION = java.security.AccessController.doPrivileged(
410	>	new java.security.PrivilegedAction<String>() {
411	>	public String run() {
412	>	return System.getProperty("java.specification.version");}});
413	>	} catch (Throwable t) {
414	>	throw new Error(t);
415	>	}
416	>	}
417	>
418	>	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
419	>	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
420	>	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
421	>	public static boolean atLeastJava9() {
422	>	return JAVA_CLASS_VERSION >= 53.0
423	>	// As of 2015-09, java9 still uses 52.0 class file version
424	>	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?(9|[0-9][0-9])$");
425	>	}
426	>	public static boolean atLeastJava10() {
427	>	return JAVA_CLASS_VERSION >= 54.0
428	>	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?[0-9][0-9]$");
429		}
430
431		/**
432	<	* Collects all JSR166 unit tests as one suite
432	>	* Collects all JSR166 unit tests as one suite.
433		*/
434		public static Test suite() {
435	<	TestSuite suite = new TestSuite("JSR166 Unit Tests");
436	<
437	<	suite.addTest(new TestSuite(ForkJoinPoolTest.class));
438	<	suite.addTest(new TestSuite(ForkJoinTaskTest.class));
439	<	suite.addTest(new TestSuite(RecursiveActionTest.class));
440	<	suite.addTest(new TestSuite(RecursiveTaskTest.class));
441	<	suite.addTest(new TestSuite(LinkedTransferQueueTest.class));
442	<	suite.addTest(new TestSuite(PhaserTest.class));
443	<	suite.addTest(new TestSuite(ThreadLocalRandomTest.class));
444	<	suite.addTest(new TestSuite(AbstractExecutorServiceTest.class));
445	<	suite.addTest(new TestSuite(AbstractQueueTest.class));
446	<	suite.addTest(new TestSuite(AbstractQueuedSynchronizerTest.class));
447	<	suite.addTest(new TestSuite(AbstractQueuedLongSynchronizerTest.class));
448	<	suite.addTest(new TestSuite(ArrayBlockingQueueTest.class));
449	<	suite.addTest(new TestSuite(ArrayDequeTest.class));
450	<	suite.addTest(new TestSuite(AtomicBooleanTest.class));
451	<	suite.addTest(new TestSuite(AtomicIntegerArrayTest.class));
452	<	suite.addTest(new TestSuite(AtomicIntegerFieldUpdaterTest.class));
453	<	suite.addTest(new TestSuite(AtomicIntegerTest.class));
454	<	suite.addTest(new TestSuite(AtomicLongArrayTest.class));
455	<	suite.addTest(new TestSuite(AtomicLongFieldUpdaterTest.class));
456	<	suite.addTest(new TestSuite(AtomicLongTest.class));
457	<	suite.addTest(new TestSuite(AtomicMarkableReferenceTest.class));
458	<	suite.addTest(new TestSuite(AtomicReferenceArrayTest.class));
459	<	suite.addTest(new TestSuite(AtomicReferenceFieldUpdaterTest.class));
460	<	suite.addTest(new TestSuite(AtomicReferenceTest.class));
461	<	suite.addTest(new TestSuite(AtomicStampedReferenceTest.class));
462	<	suite.addTest(new TestSuite(ConcurrentHashMapTest.class));
463	<	suite.addTest(new TestSuite(ConcurrentLinkedQueueTest.class));
464	<	suite.addTest(new TestSuite(ConcurrentSkipListMapTest.class));
465	<	suite.addTest(new TestSuite(ConcurrentSkipListSubMapTest.class));
466	<	suite.addTest(new TestSuite(ConcurrentSkipListSetTest.class));
467	<	suite.addTest(new TestSuite(ConcurrentSkipListSubSetTest.class));
468	<	suite.addTest(new TestSuite(CopyOnWriteArrayListTest.class));
469	<	suite.addTest(new TestSuite(CopyOnWriteArraySetTest.class));
470	<	suite.addTest(new TestSuite(CountDownLatchTest.class));
471	<	suite.addTest(new TestSuite(CyclicBarrierTest.class));
472	<	suite.addTest(new TestSuite(DelayQueueTest.class));
473	<	suite.addTest(new TestSuite(EntryTest.class));
474	<	suite.addTest(new TestSuite(ExchangerTest.class));
475	<	suite.addTest(new TestSuite(ExecutorsTest.class));
476	<	suite.addTest(new TestSuite(ExecutorCompletionServiceTest.class));
477	<	suite.addTest(new TestSuite(FutureTaskTest.class));
478	<	suite.addTest(new TestSuite(LinkedBlockingDequeTest.class));
479	<	suite.addTest(new TestSuite(LinkedBlockingQueueTest.class));
480	<	suite.addTest(new TestSuite(LinkedListTest.class));
481	<	suite.addTest(new TestSuite(LockSupportTest.class));
482	<	suite.addTest(new TestSuite(PriorityBlockingQueueTest.class));
483	<	suite.addTest(new TestSuite(PriorityQueueTest.class));
484	<	suite.addTest(new TestSuite(ReentrantLockTest.class));
485	<	suite.addTest(new TestSuite(ReentrantReadWriteLockTest.class));
486	<	suite.addTest(new TestSuite(ScheduledExecutorTest.class));
487	<	suite.addTest(new TestSuite(ScheduledExecutorSubclassTest.class));
488	<	suite.addTest(new TestSuite(SemaphoreTest.class));
489	<	suite.addTest(new TestSuite(SynchronousQueueTest.class));
490	<	suite.addTest(new TestSuite(SystemTest.class));
491	<	suite.addTest(new TestSuite(ThreadLocalTest.class));
492	<	suite.addTest(new TestSuite(ThreadPoolExecutorTest.class));
493	<	suite.addTest(new TestSuite(ThreadPoolExecutorSubclassTest.class));
494	<	suite.addTest(new TestSuite(ThreadTest.class));
495	<	suite.addTest(new TestSuite(TimeUnitTest.class));
496	<	suite.addTest(new TestSuite(TreeMapTest.class));
497	<	suite.addTest(new TestSuite(TreeSetTest.class));
498	<	suite.addTest(new TestSuite(TreeSubMapTest.class));
499	<	suite.addTest(new TestSuite(TreeSubSetTest.class));
435	>	// Java7+ test classes
436	>	TestSuite suite = newTestSuite(
437	>	ForkJoinPoolTest.suite(),
438	>	ForkJoinTaskTest.suite(),
439	>	RecursiveActionTest.suite(),
440	>	RecursiveTaskTest.suite(),
441	>	LinkedTransferQueueTest.suite(),
442	>	PhaserTest.suite(),
443	>	ThreadLocalRandomTest.suite(),
444	>	AbstractExecutorServiceTest.suite(),
445	>	AbstractQueueTest.suite(),
446	>	AbstractQueuedSynchronizerTest.suite(),
447	>	AbstractQueuedLongSynchronizerTest.suite(),
448	>	ArrayBlockingQueueTest.suite(),
449	>	ArrayDequeTest.suite(),
450	>	ArrayListTest.suite(),
451	>	AtomicBooleanTest.suite(),
452	>	AtomicIntegerArrayTest.suite(),
453	>	AtomicIntegerFieldUpdaterTest.suite(),
454	>	AtomicIntegerTest.suite(),
455	>	AtomicLongArrayTest.suite(),
456	>	AtomicLongFieldUpdaterTest.suite(),
457	>	AtomicLongTest.suite(),
458	>	AtomicMarkableReferenceTest.suite(),
459	>	AtomicReferenceArrayTest.suite(),
460	>	AtomicReferenceFieldUpdaterTest.suite(),
461	>	AtomicReferenceTest.suite(),
462	>	AtomicStampedReferenceTest.suite(),
463	>	ConcurrentHashMapTest.suite(),
464	>	ConcurrentLinkedDequeTest.suite(),
465	>	ConcurrentLinkedQueueTest.suite(),
466	>	ConcurrentSkipListMapTest.suite(),
467	>	ConcurrentSkipListSubMapTest.suite(),
468	>	ConcurrentSkipListSetTest.suite(),
469	>	ConcurrentSkipListSubSetTest.suite(),
470	>	CopyOnWriteArrayListTest.suite(),
471	>	CopyOnWriteArraySetTest.suite(),
472	>	CountDownLatchTest.suite(),
473	>	CountedCompleterTest.suite(),
474	>	CyclicBarrierTest.suite(),
475	>	DelayQueueTest.suite(),
476	>	EntryTest.suite(),
477	>	ExchangerTest.suite(),
478	>	ExecutorsTest.suite(),
479	>	ExecutorCompletionServiceTest.suite(),
480	>	FutureTaskTest.suite(),
481	>	LinkedBlockingDequeTest.suite(),
482	>	LinkedBlockingQueueTest.suite(),
483	>	LinkedListTest.suite(),
484	>	LockSupportTest.suite(),
485	>	PriorityBlockingQueueTest.suite(),
486	>	PriorityQueueTest.suite(),
487	>	ReentrantLockTest.suite(),
488	>	ReentrantReadWriteLockTest.suite(),
489	>	ScheduledExecutorTest.suite(),
490	>	ScheduledExecutorSubclassTest.suite(),
491	>	SemaphoreTest.suite(),
492	>	SynchronousQueueTest.suite(),
493	>	SystemTest.suite(),
494	>	ThreadLocalTest.suite(),
495	>	ThreadPoolExecutorTest.suite(),
496	>	ThreadPoolExecutorSubclassTest.suite(),
497	>	ThreadTest.suite(),
498	>	TimeUnitTest.suite(),
499	>	TreeMapTest.suite(),
500	>	TreeSetTest.suite(),
501	>	TreeSubMapTest.suite(),
502	>	TreeSubSetTest.suite(),
503	>	VectorTest.suite());
504	>
505	>	// Java8+ test classes
506	>	if (atLeastJava8()) {
507	>	String[] java8TestClassNames = {
508	>	"ArrayDeque8Test",
509	>	"Atomic8Test",
510	>	"CompletableFutureTest",
511	>	"ConcurrentHashMap8Test",
512	>	"CountedCompleter8Test",
513	>	"DoubleAccumulatorTest",
514	>	"DoubleAdderTest",
515	>	"ForkJoinPool8Test",
516	>	"ForkJoinTask8Test",
517	>	"LongAccumulatorTest",
518	>	"LongAdderTest",
519	>	"SplittableRandomTest",
520	>	"StampedLockTest",
521	>	"SubmissionPublisherTest",
522	>	"ThreadLocalRandom8Test",
523	>	"TimeUnit8Test",
524	>	};
525	>	addNamedTestClasses(suite, java8TestClassNames);
526	>	}
527	>
528	>	// Java9+ test classes
529	>	if (atLeastJava9()) {
530	>	String[] java9TestClassNames = {
531	>	"AtomicBoolean9Test",
532	>	"AtomicInteger9Test",
533	>	"AtomicIntegerArray9Test",
534	>	"AtomicLong9Test",
535	>	"AtomicLongArray9Test",
536	>	"AtomicReference9Test",
537	>	"AtomicReferenceArray9Test",
538	>	"ExecutorCompletionService9Test",
539	>	};
540	>	addNamedTestClasses(suite, java9TestClassNames);
541	>	}
542
543		return suite;
544		}
545
546	+	/** Returns list of junit-style test method names in given class. */
547	+	public static ArrayList<String> testMethodNames(Class<?> testClass) {
548	+	Method[] methods = testClass.getDeclaredMethods();
549	+	ArrayList<String> names = new ArrayList<String>(methods.length);
550	+	for (Method method : methods) {
551	+	if (method.getName().startsWith("test")
552	+	&& Modifier.isPublic(method.getModifiers())
553	+	// method.getParameterCount() requires jdk8+
554	+	&& method.getParameterTypes().length == 0) {
555	+	names.add(method.getName());
556	+	}
557	+	}
558	+	return names;
559	+	}
560	+
561	+	/**
562	+	* Returns junit-style testSuite for the given test class, but
563	+	* parameterized by passing extra data to each test.
564	+	*/
565	+	public static <ExtraData> Test parameterizedTestSuite
566	+	(Class<? extends JSR166TestCase> testClass,
567	+	Class<ExtraData> dataClass,
568	+	ExtraData data) {
569	+	try {
570	+	TestSuite suite = new TestSuite();
571	+	Constructor c =
572	+	testClass.getDeclaredConstructor(dataClass, String.class);
573	+	for (String methodName : testMethodNames(testClass))
574	+	suite.addTest((Test) c.newInstance(data, methodName));
575	+	return suite;
576	+	} catch (Exception e) {
577	+	throw new Error(e);
578	+	}
579	+	}
580	+
581	+	/**
582	+	* Returns junit-style testSuite for the jdk8 extension of the
583	+	* given test class, but parameterized by passing extra data to
584	+	* each test.  Uses reflection to allow compilation in jdk7.
585	+	*/
586	+	public static <ExtraData> Test jdk8ParameterizedTestSuite
587	+	(Class<? extends JSR166TestCase> testClass,
588	+	Class<ExtraData> dataClass,
589	+	ExtraData data) {
590	+	if (atLeastJava8()) {
591	+	String name = testClass.getName();
592	+	String name8 = name.replaceAll("Test$", "8Test");
593	+	if (name.equals(name8)) throw new Error(name);
594	+	try {
595	+	return (Test)
596	+	Class.forName(name8)
597	+	.getMethod("testSuite", new Class[] { dataClass })
598	+	.invoke(null, data);
599	+	} catch (Exception e) {
600	+	throw new Error(e);
601	+	}
602	+	} else {
603	+	return new TestSuite();
604	+	}
605	+	}
606	+
607	+	// Delays for timing-dependent tests, in milliseconds.
608
609		public static long SHORT_DELAY_MS;
610		public static long SMALL_DELAY_MS;
611		public static long MEDIUM_DELAY_MS;
612		public static long LONG_DELAY_MS;
613
193	–
614		/**
615	<	* Returns the shortest timed delay. This could
616	<	* be reimplemented to use for example a Property.
615	>	* Returns the shortest timed delay. This can be scaled up for
616	>	* slow machines using the jsr166.delay.factor system property,
617	>	* or via jtreg's -timeoutFactor: flag.
618	>	* http://openjdk.java.net/jtreg/command-help.html
619		*/
620		protected long getShortDelay() {
621	<	return 50;
621	>	return (long) (50 * delayFactor);
622		}
623
202	–
624		/**
625		* Sets delays as multiples of SHORT_DELAY.
626		*/
627		protected void setDelays() {
628		SHORT_DELAY_MS = getShortDelay();
629	<	SMALL_DELAY_MS = SHORT_DELAY_MS * 5;
629	>	SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
630		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
631	<	LONG_DELAY_MS = SHORT_DELAY_MS * 50;
631	>	LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
632	>	}
633	>
634	>	/**
635	>	* Returns a timeout in milliseconds to be used in tests that
636	>	* verify that operations block or time out.
637	>	*/
638	>	long timeoutMillis() {
639	>	return SHORT_DELAY_MS / 4;
640		}
641
642		/**
643	<	* Flag set true if any threadAssert methods fail
643	>	* Returns a new Date instance representing a time at least
644	>	* delayMillis milliseconds in the future.
645		*/
646	<	volatile boolean threadFailed;
646	>	Date delayedDate(long delayMillis) {
647	>	// Add 1 because currentTimeMillis is known to round into the past.
648	>	return new Date(System.currentTimeMillis() + delayMillis + 1);
649	>	}
650
651		/**
652	<	* Initializes test to indicate that no thread assertions have failed
652	>	* The first exception encountered if any threadAssertXXX method fails.
653		*/
654	+	private final AtomicReference<Throwable> threadFailure
655	+	= new AtomicReference<Throwable>(null);
656	+
657	+	/**
658	+	* Records an exception so that it can be rethrown later in the test
659	+	* harness thread, triggering a test case failure.  Only the first
660	+	* failure is recorded; subsequent calls to this method from within
661	+	* the same test have no effect.
662	+	*/
663	+	public void threadRecordFailure(Throwable t) {
664	+	System.err.println(t);
665	+	dumpTestThreads();
666	+	threadFailure.compareAndSet(null, t);
667	+	}
668	+
669		public void setUp() {
670		setDelays();
671	<	threadFailed = false;
671	>	}
672	>
673	>	void tearDownFail(String format, Object... args) {
674	>	String msg = toString() + ": " + String.format(format, args);
675	>	System.err.println(msg);
676	>	dumpTestThreads();
677	>	throw new AssertionFailedError(msg);
678		}
679
680		/**
681	<	* Triggers test case failure if any thread assertions have failed
681	>	* Extra checks that get done for all test cases.
682	>	*
683	>	* Triggers test case failure if any thread assertions have failed,
684	>	* by rethrowing, in the test harness thread, any exception recorded
685	>	* earlier by threadRecordFailure.
686	>	*
687	>	* Triggers test case failure if interrupt status is set in the main thread.
688	>	*/
689	>	public void tearDown() throws Exception {
690	>	Throwable t = threadFailure.getAndSet(null);
691	>	if (t != null) {
692	>	if (t instanceof Error)
693	>	throw (Error) t;
694	>	else if (t instanceof RuntimeException)
695	>	throw (RuntimeException) t;
696	>	else if (t instanceof Exception)
697	>	throw (Exception) t;
698	>	else {
699	>	AssertionFailedError afe =
700	>	new AssertionFailedError(t.toString());
701	>	afe.initCause(t);
702	>	throw afe;
703	>	}
704	>	}
705	>
706	>	if (Thread.interrupted())
707	>	tearDownFail("interrupt status set in main thread");
708	>
709	>	checkForkJoinPoolThreadLeaks();
710	>	}
711	>
712	>	/**
713	>	* Finds missing PoolCleaners
714		*/
715	<	public void tearDown() {
716	<	assertFalse(threadFailed);
715	>	void checkForkJoinPoolThreadLeaks() throws InterruptedException {
716	>	Thread[] survivors = new Thread[7];
717	>	int count = Thread.enumerate(survivors);
718	>	for (int i = 0; i < count; i++) {
719	>	Thread thread = survivors[i];
720	>	String name = thread.getName();
721	>	if (name.startsWith("ForkJoinPool-")) {
722	>	// give thread some time to terminate
723	>	thread.join(LONG_DELAY_MS);
724	>	if (thread.isAlive())
725	>	tearDownFail("Found leaked ForkJoinPool thread thread=%s",
726	>	thread);
727	>	}
728	>	}
729	>
730	>	if (!ForkJoinPool.commonPool()
731	>	.awaitQuiescence(LONG_DELAY_MS, MILLISECONDS))
732	>	tearDownFail("ForkJoin common pool thread stuck");
733		}
734
735		/**
736	<	* Fail, also setting status to indicate current testcase should fail
736	>	* Just like fail(reason), but additionally recording (using
737	>	* threadRecordFailure) any AssertionFailedError thrown, so that
738	>	* the current testcase will fail.
739		*/
740		public void threadFail(String reason) {
741	<	threadFailed = true;
742	<	fail(reason);
741	>	try {
742	>	fail(reason);
743	>	} catch (AssertionFailedError t) {
744	>	threadRecordFailure(t);
745	>	throw t;
746	>	}
747		}
748
749		/**
750	<	* If expression not true, set status to indicate current testcase
751	<	* should fail
750	>	* Just like assertTrue(b), but additionally recording (using
751	>	* threadRecordFailure) any AssertionFailedError thrown, so that
752	>	* the current testcase will fail.
753		*/
754		public void threadAssertTrue(boolean b) {
755	<	if (!b) {
247	<	threadFailed = true;
755	>	try {
756		assertTrue(b);
757	+	} catch (AssertionFailedError t) {
758	+	threadRecordFailure(t);
759	+	throw t;
760		}
761		}
762
763		/**
764	<	* If expression not false, set status to indicate current testcase
765	<	* should fail
764	>	* Just like assertFalse(b), but additionally recording (using
765	>	* threadRecordFailure) any AssertionFailedError thrown, so that
766	>	* the current testcase will fail.
767		*/
768		public void threadAssertFalse(boolean b) {
769	<	if (b) {
258	<	threadFailed = true;
769	>	try {
770		assertFalse(b);
771	+	} catch (AssertionFailedError t) {
772	+	threadRecordFailure(t);
773	+	throw t;
774		}
775		}
776
777		/**
778	<	* If argument not null, set status to indicate current testcase
779	<	* should fail
778	>	* Just like assertNull(x), but additionally recording (using
779	>	* threadRecordFailure) any AssertionFailedError thrown, so that
780	>	* the current testcase will fail.
781		*/
782		public void threadAssertNull(Object x) {
783	<	if (x != null) {
269	<	threadFailed = true;
783	>	try {
784		assertNull(x);
785	+	} catch (AssertionFailedError t) {
786	+	threadRecordFailure(t);
787	+	throw t;
788		}
789		}
790
791		/**
792	<	* If arguments not equal, set status to indicate current testcase
793	<	* should fail
792	>	* Just like assertEquals(x, y), but additionally recording (using
793	>	* threadRecordFailure) any AssertionFailedError thrown, so that
794	>	* the current testcase will fail.
795		*/
796		public void threadAssertEquals(long x, long y) {
797	<	if (x != y) {
280	<	threadFailed = true;
797	>	try {
798		assertEquals(x, y);
799	+	} catch (AssertionFailedError t) {
800	+	threadRecordFailure(t);
801	+	throw t;
802		}
803		}
804
805		/**
806	<	* If arguments not equal, set status to indicate current testcase
807	<	* should fail
806	>	* Just like assertEquals(x, y), but additionally recording (using
807	>	* threadRecordFailure) any AssertionFailedError thrown, so that
808	>	* the current testcase will fail.
809		*/
810		public void threadAssertEquals(Object x, Object y) {
811	<	if (x != y && (x == null || !x.equals(y))) {
291	<	threadFailed = true;
811	>	try {
812		assertEquals(x, y);
813	+	} catch (AssertionFailedError fail) {
814	+	threadRecordFailure(fail);
815	+	throw fail;
816	+	} catch (Throwable fail) {
817	+	threadUnexpectedException(fail);
818		}
819		}
820
821		/**
822	<	* threadFail with message "should throw exception"
822	>	* Just like assertSame(x, y), but additionally recording (using
823	>	* threadRecordFailure) any AssertionFailedError thrown, so that
824	>	* the current testcase will fail.
825	>	*/
826	>	public void threadAssertSame(Object x, Object y) {
827	>	try {
828	>	assertSame(x, y);
829	>	} catch (AssertionFailedError fail) {
830	>	threadRecordFailure(fail);
831	>	throw fail;
832	>	}
833	>	}
834	>
835	>	/**
836	>	* Calls threadFail with message "should throw exception".
837		*/
838		public void threadShouldThrow() {
839	<	threadFailed = true;
301	<	fail("should throw exception");
839	>	threadFail("should throw exception");
840		}
841
842		/**
843	<	* threadFail with message "should throw" + exceptionName
843	>	* Calls threadFail with message "should throw" + exceptionName.
844		*/
845		public void threadShouldThrow(String exceptionName) {
846	<	threadFailed = true;
847	<	fail("should throw " + exceptionName);
846	>	threadFail("should throw " + exceptionName);
847	>	}
848	>
849	>	/**
850	>	* Records the given exception using {@link #threadRecordFailure},
851	>	* then rethrows the exception, wrapping it in an
852	>	* AssertionFailedError if necessary.
853	>	*/
854	>	public void threadUnexpectedException(Throwable t) {
855	>	threadRecordFailure(t);
856	>	t.printStackTrace();
857	>	if (t instanceof RuntimeException)
858	>	throw (RuntimeException) t;
859	>	else if (t instanceof Error)
860	>	throw (Error) t;
861	>	else {
862	>	AssertionFailedError afe =
863	>	new AssertionFailedError("unexpected exception: " + t);
864	>	afe.initCause(t);
865	>	throw afe;
866	>	}
867		}
868
869		/**
870	<	* threadFail with message "Unexpected exception"
870	>	* Delays, via Thread.sleep, for the given millisecond delay, but
871	>	* if the sleep is shorter than specified, may re-sleep or yield
872	>	* until time elapses.  Ensures that the given time, as measured
873	>	* by System.nanoTime(), has elapsed.
874		*/
875	<	public void threadUnexpectedException() {
876	<	threadFailed = true;
877	<	fail("Unexpected exception");
875	>	static void delay(long millis) throws InterruptedException {
876	>	long nanos = millis * (1000 * 1000);
877	>	final long wakeupTime = System.nanoTime() + nanos;
878	>	do {
879	>	if (millis > 0L)
880	>	Thread.sleep(millis);
881	>	else // too short to sleep
882	>	Thread.yield();
883	>	nanos = wakeupTime - System.nanoTime();
884	>	millis = nanos / (1000 * 1000);
885	>	} while (nanos >= 0L);
886		}
887
888		/**
889	<	* threadFail with message "Unexpected exception", with argument
889	>	* Allows use of try-with-resources with per-test thread pools.
890		*/
891	<	public void threadUnexpectedException(Throwable ex) {
892	<	threadFailed = true;
893	<	ex.printStackTrace();
894	<	fail("Unexpected exception: " + ex);
891	>	class PoolCleaner implements AutoCloseable {
892	>	private final ExecutorService pool;
893	>	public PoolCleaner(ExecutorService pool) { this.pool = pool; }
894	>	public void close() { joinPool(pool); }
895	>	}
896	>
897	>	/**
898	>	* An extension of PoolCleaner that has an action to release the pool.
899	>	*/
900	>	class PoolCleanerWithReleaser extends PoolCleaner {
901	>	private final Runnable releaser;
902	>	public PoolCleanerWithReleaser(ExecutorService pool, Runnable releaser) {
903	>	super(pool);
904	>	this.releaser = releaser;
905	>	}
906	>	public void close() {
907	>	try {
908	>	releaser.run();
909	>	} finally {
910	>	super.close();
911	>	}
912	>	}
913	>	}
914	>
915	>	PoolCleaner cleaner(ExecutorService pool) {
916	>	return new PoolCleaner(pool);
917	>	}
918	>
919	>	PoolCleaner cleaner(ExecutorService pool, Runnable releaser) {
920	>	return new PoolCleanerWithReleaser(pool, releaser);
921	>	}
922	>
923	>	PoolCleaner cleaner(ExecutorService pool, CountDownLatch latch) {
924	>	return new PoolCleanerWithReleaser(pool, releaser(latch));
925	>	}
926	>
927	>	Runnable releaser(final CountDownLatch latch) {
928	>	return new Runnable() { public void run() {
929	>	do { latch.countDown(); }
930	>	while (latch.getCount() > 0);
931	>	}};
932	>	}
933	>
934	>	PoolCleaner cleaner(ExecutorService pool, AtomicBoolean flag) {
935	>	return new PoolCleanerWithReleaser(pool, releaser(flag));
936	>	}
937	>
938	>	Runnable releaser(final AtomicBoolean flag) {
939	>	return new Runnable() { public void run() { flag.set(true); }};
940		}
941
942		/**
943	<	* Wait out termination of a thread pool or fail doing so
943	>	* Waits out termination of a thread pool or fails doing so.
944		*/
945	<	public void joinPool(ExecutorService exec) {
945	>	void joinPool(ExecutorService pool) {
946		try {
947	<	exec.shutdown();
948	<	assertTrue(exec.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
947	>	pool.shutdown();
948	>	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)) {
949	>	try {
950	>	threadFail("ExecutorService " + pool +
951	>	" did not terminate in a timely manner");
952	>	} finally {
953	>	// last resort, for the benefit of subsequent tests
954	>	pool.shutdownNow();
955	>	pool.awaitTermination(MEDIUM_DELAY_MS, MILLISECONDS);
956	>	}
957	>	}
958		} catch (SecurityException ok) {
959		// Allowed in case test doesn't have privs
960	<	} catch (InterruptedException ie) {
961	<	fail("Unexpected InterruptedException");
960	>	} catch (InterruptedException fail) {
961	>	threadFail("Unexpected InterruptedException");
962		}
963		}
964
965	+	/**
966	+	* Like Runnable, but with the freedom to throw anything.
967	+	* junit folks had the same idea:
968	+	* http://junit.org/junit5/docs/snapshot/api/org/junit/gen5/api/Executable.html
969	+	*/
970	+	interface Action { public void run() throws Throwable; }
971
972		/**
973	<	* fail with message "should throw exception"
973	>	* Runs all the given actions in parallel, failing if any fail.
974	>	* Useful for running multiple variants of tests that are
975	>	* necessarily individually slow because they must block.
976		*/
977	<	public void shouldThrow() {
978	<	fail("Should throw exception");
977	>	void testInParallel(Action ... actions) {
978	>	ExecutorService pool = Executors.newCachedThreadPool();
979	>	try (PoolCleaner cleaner = cleaner(pool)) {
980	>	ArrayList<Future<?>> futures = new ArrayList<>(actions.length);
981	>	for (final Action action : actions)
982	>	futures.add(pool.submit(new CheckedRunnable() {
983	>	public void realRun() throws Throwable { action.run();}}));
984	>	for (Future<?> future : futures)
985	>	try {
986	>	assertNull(future.get(LONG_DELAY_MS, MILLISECONDS));
987	>	} catch (ExecutionException ex) {
988	>	threadUnexpectedException(ex.getCause());
989	>	} catch (Exception ex) {
990	>	threadUnexpectedException(ex);
991	>	}
992	>	}
993		}
994
995		/**
996	<	* fail with message "should throw " + exceptionName
996	>	* A debugging tool to print stack traces of most threads, as jstack does.
997	>	* Uninteresting threads are filtered out.
998		*/
999	<	public void shouldThrow(String exceptionName) {
1000	<	fail("Should throw " + exceptionName);
999	>	static void dumpTestThreads() {
1000	>	SecurityManager sm = System.getSecurityManager();
1001	>	if (sm != null) {
1002	>	try {
1003	>	System.setSecurityManager(null);
1004	>	} catch (SecurityException giveUp) {
1005	>	return;
1006	>	}
1007	>	}
1008	>
1009	>	ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
1010	>	System.err.println("------ stacktrace dump start ------");
1011	>	for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) {
1012	>	final String name = info.getThreadName();
1013	>	String lockName;
1014	>	if ("Signal Dispatcher".equals(name))
1015	>	continue;
1016	>	if ("Reference Handler".equals(name)
1017	>	&& (lockName = info.getLockName()) != null
1018	>	&& lockName.startsWith("java.lang.ref.Reference$Lock"))
1019	>	continue;
1020	>	if ("Finalizer".equals(name)
1021	>	&& (lockName = info.getLockName()) != null
1022	>	&& lockName.startsWith("java.lang.ref.ReferenceQueue$Lock"))
1023	>	continue;
1024	>	if ("checkForWedgedTest".equals(name))
1025	>	continue;
1026	>	System.err.print(info);
1027	>	}
1028	>	System.err.println("------ stacktrace dump end ------");
1029	>
1030	>	if (sm != null) System.setSecurityManager(sm);
1031	>	}
1032	>
1033	>	/**
1034	>	* Checks that thread does not terminate within the default
1035	>	* millisecond delay of {@code timeoutMillis()}.
1036	>	*/
1037	>	void assertThreadStaysAlive(Thread thread) {
1038	>	assertThreadStaysAlive(thread, timeoutMillis());
1039	>	}
1040	>
1041	>	/**
1042	>	* Checks that thread does not terminate within the given millisecond delay.
1043	>	*/
1044	>	void assertThreadStaysAlive(Thread thread, long millis) {
1045	>	try {
1046	>	// No need to optimize the failing case via Thread.join.
1047	>	delay(millis);
1048	>	assertTrue(thread.isAlive());
1049	>	} catch (InterruptedException fail) {
1050	>	threadFail("Unexpected InterruptedException");
1051	>	}
1052	>	}
1053	>
1054	>	/**
1055	>	* Checks that the threads do not terminate within the default
1056	>	* millisecond delay of {@code timeoutMillis()}.
1057	>	*/
1058	>	void assertThreadsStayAlive(Thread... threads) {
1059	>	assertThreadsStayAlive(timeoutMillis(), threads);
1060		}
1061
1062		/**
1063	<	* fail with message "Unexpected exception"
1063	>	* Checks that the threads do not terminate within the given millisecond delay.
1064		*/
1065	<	public void unexpectedException() {
1066	<	fail("Unexpected exception");
1065	>	void assertThreadsStayAlive(long millis, Thread... threads) {
1066	>	try {
1067	>	// No need to optimize the failing case via Thread.join.
1068	>	delay(millis);
1069	>	for (Thread thread : threads)
1070	>	assertTrue(thread.isAlive());
1071	>	} catch (InterruptedException fail) {
1072	>	threadFail("Unexpected InterruptedException");
1073	>	}
1074		}
1075
1076		/**
1077	<	* fail with message "Unexpected exception", with argument
1077	>	* Checks that future.get times out, with the default timeout of
1078	>	* {@code timeoutMillis()}.
1079		*/
1080	<	public void unexpectedException(Throwable ex) {
1081	<	ex.printStackTrace();
370	<	fail("Unexpected exception: " + ex);
1080	>	void assertFutureTimesOut(Future future) {
1081	>	assertFutureTimesOut(future, timeoutMillis());
1082		}
1083
1084	+	/**
1085	+	* Checks that future.get times out, with the given millisecond timeout.
1086	+	*/
1087	+	void assertFutureTimesOut(Future future, long timeoutMillis) {
1088	+	long startTime = System.nanoTime();
1089	+	try {
1090	+	future.get(timeoutMillis, MILLISECONDS);
1091	+	shouldThrow();
1092	+	} catch (TimeoutException success) {
1093	+	} catch (Exception fail) {
1094	+	threadUnexpectedException(fail);
1095	+	} finally { future.cancel(true); }
1096	+	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
1097	+	}
1098	+
1099	+	/**
1100	+	* Fails with message "should throw exception".
1101	+	*/
1102	+	public void shouldThrow() {
1103	+	fail("Should throw exception");
1104	+	}
1105	+
1106	+	/**
1107	+	* Fails with message "should throw " + exceptionName.
1108	+	*/
1109	+	public void shouldThrow(String exceptionName) {
1110	+	fail("Should throw " + exceptionName);
1111	+	}
1112
1113		/**
1114		* The number of elements to place in collections, arrays, etc.
#	Line 396 | Line 1135 | public class JSR166TestCase extends Test
1135		public static final Integer m6  = new Integer(-6);
1136		public static final Integer m10 = new Integer(-10);
1137
399	–
1138		/**
1139		* Runs Runnable r with a security policy that permits precisely
1140		* the specified permissions.  If there is no current security
#	Line 408 | Line 1146 | public class JSR166TestCase extends Test
1146		SecurityManager sm = System.getSecurityManager();
1147		if (sm == null) {
1148		r.run();
1149	+	}
1150	+	runWithSecurityManagerWithPermissions(r, permissions);
1151	+	}
1152	+
1153	+	/**
1154	+	* Runs Runnable r with a security policy that permits precisely
1155	+	* the specified permissions.  If there is no current security
1156	+	* manager, a temporary one is set for the duration of the
1157	+	* Runnable.  We require that any security manager permit
1158	+	* getPolicy/setPolicy.
1159	+	*/
1160	+	public void runWithSecurityManagerWithPermissions(Runnable r,
1161	+	Permission... permissions) {
1162	+	SecurityManager sm = System.getSecurityManager();
1163	+	if (sm == null) {
1164		Policy savedPolicy = Policy.getPolicy();
1165		try {
1166		Policy.setPolicy(permissivePolicy());
1167		System.setSecurityManager(new SecurityManager());
1168	<	runWithPermissions(r, permissions);
1168	>	runWithSecurityManagerWithPermissions(r, permissions);
1169		} finally {
1170		System.setSecurityManager(null);
1171		Policy.setPolicy(savedPolicy);
#	Line 460 | Line 1213 | public class JSR166TestCase extends Test
1213		return perms.implies(p);
1214		}
1215		public void refresh() {}
1216	+	public String toString() {
1217	+	List<Permission> ps = new ArrayList<Permission>();
1218	+	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
1219	+	ps.add(e.nextElement());
1220	+	return "AdjustablePolicy with permissions " + ps;
1221	+	}
1222		}
1223
1224		/**
#	Line 482 | Line 1241 | public class JSR166TestCase extends Test
1241		}
1242
1243		/**
1244	<	* Sleep until the timeout has elapsed, or interrupted.
1245	<	* Does <em>NOT</em> throw InterruptedException.
1244	>	* Sleeps until the given time has elapsed.
1245	>	* Throws AssertionFailedError if interrupted.
1246		*/
1247	<	void sleepTillInterrupted(long timeoutMillis) {
1247	>	static void sleep(long millis) {
1248		try {
1249	<	Thread.sleep(timeoutMillis);
1250	<	} catch (InterruptedException wakeup) {}
1249	>	delay(millis);
1250	>	} catch (InterruptedException fail) {
1251	>	AssertionFailedError afe =
1252	>	new AssertionFailedError("Unexpected InterruptedException");
1253	>	afe.initCause(fail);
1254	>	throw afe;
1255	>	}
1256	>	}
1257	>
1258	>	/**
1259	>	* Spin-waits up to the specified number of milliseconds for the given
1260	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1261	>	*/
1262	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1263	>	long startTime = 0L;
1264	>	for (;;) {
1265	>	Thread.State s = thread.getState();
1266	>	if (s == Thread.State.BLOCKED ||
1267	>	s == Thread.State.WAITING ||
1268	>	s == Thread.State.TIMED_WAITING)
1269	>	return;
1270	>	else if (s == Thread.State.TERMINATED)
1271	>	fail("Unexpected thread termination");
1272	>	else if (startTime == 0L)
1273	>	startTime = System.nanoTime();
1274	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
1275	>	threadAssertTrue(thread.isAlive());
1276	>	return;
1277	>	}
1278	>	Thread.yield();
1279	>	}
1280	>	}
1281	>
1282	>	/**
1283	>	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
1284	>	* state: BLOCKED, WAITING, or TIMED_WAITING.
1285	>	*/
1286	>	void waitForThreadToEnterWaitState(Thread thread) {
1287	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
1288		}
1289
1290		/**
1291	<	* Returns a new started Thread running the given runnable.
1291	>	* Returns the number of milliseconds since time given by
1292	>	* startNanoTime, which must have been previously returned from a
1293	>	* call to {@link System#nanoTime()}.
1294	>	*/
1295	>	static long millisElapsedSince(long startNanoTime) {
1296	>	return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
1297	>	}
1298	>
1299	>	//     void assertTerminatesPromptly(long timeoutMillis, Runnable r) {
1300	>	//         long startTime = System.nanoTime();
1301	>	//         try {
1302	>	//             r.run();
1303	>	//         } catch (Throwable fail) { threadUnexpectedException(fail); }
1304	>	//         if (millisElapsedSince(startTime) > timeoutMillis/2)
1305	>	//             throw new AssertionFailedError("did not return promptly");
1306	>	//     }
1307	>
1308	>	//     void assertTerminatesPromptly(Runnable r) {
1309	>	//         assertTerminatesPromptly(LONG_DELAY_MS/2, r);
1310	>	//     }
1311	>
1312	>	/**
1313	>	* Checks that timed f.get() returns the expected value, and does not
1314	>	* wait for the timeout to elapse before returning.
1315	>	*/
1316	>	<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
1317	>	long startTime = System.nanoTime();
1318	>	try {
1319	>	assertEquals(expectedValue, f.get(timeoutMillis, MILLISECONDS));
1320	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
1321	>	if (millisElapsedSince(startTime) > timeoutMillis/2)
1322	>	throw new AssertionFailedError("timed get did not return promptly");
1323	>	}
1324	>
1325	>	<T> void checkTimedGet(Future<T> f, T expectedValue) {
1326	>	checkTimedGet(f, expectedValue, LONG_DELAY_MS);
1327	>	}
1328	>
1329	>	/**
1330	>	* Returns a new started daemon Thread running the given runnable.
1331		*/
1332		Thread newStartedThread(Runnable runnable) {
1333		Thread t = new Thread(runnable);
1334	+	t.setDaemon(true);
1335		t.start();
1336		return t;
1337		}
1338
1339	+	/**
1340	+	* Waits for the specified time (in milliseconds) for the thread
1341	+	* to terminate (using {@link Thread#join(long)}), else interrupts
1342	+	* the thread (in the hope that it may terminate later) and fails.
1343	+	*/
1344	+	void awaitTermination(Thread t, long timeoutMillis) {
1345	+	try {
1346	+	t.join(timeoutMillis);
1347	+	} catch (InterruptedException fail) {
1348	+	threadUnexpectedException(fail);
1349	+	} finally {
1350	+	if (t.getState() != Thread.State.TERMINATED) {
1351	+	t.interrupt();
1352	+	threadFail("timed out waiting for thread to terminate");
1353	+	}
1354	+	}
1355	+	}
1356	+
1357	+	/**
1358	+	* Waits for LONG_DELAY_MS milliseconds for the thread to
1359	+	* terminate (using {@link Thread#join(long)}), else interrupts
1360	+	* the thread (in the hope that it may terminate later) and fails.
1361	+	*/
1362	+	void awaitTermination(Thread t) {
1363	+	awaitTermination(t, LONG_DELAY_MS);
1364	+	}
1365	+
1366		// Some convenient Runnable classes
1367
1368		public abstract class CheckedRunnable implements Runnable {
#	Line 508 | Line 1371 | public class JSR166TestCase extends Test
1371		public final void run() {
1372		try {
1373		realRun();
1374	<	} catch (Throwable t) {
1375	<	threadUnexpectedException(t);
1374	>	} catch (Throwable fail) {
1375	>	threadUnexpectedException(fail);
1376		}
1377		}
1378		}
#	Line 562 | Line 1425 | public class JSR166TestCase extends Test
1425		realRun();
1426		threadShouldThrow("InterruptedException");
1427		} catch (InterruptedException success) {
1428	<	} catch (Throwable t) {
1429	<	threadUnexpectedException(t);
1428	>	threadAssertFalse(Thread.interrupted());
1429	>	} catch (Throwable fail) {
1430	>	threadUnexpectedException(fail);
1431		}
1432		}
1433		}
#	Line 574 | Line 1438 | public class JSR166TestCase extends Test
1438		public final T call() {
1439		try {
1440		return realCall();
1441	<	} catch (Throwable t) {
1442	<	threadUnexpectedException(t);
1441	>	} catch (Throwable fail) {
1442	>	threadUnexpectedException(fail);
1443	>	return null;
1444		}
580	–	return null;
1445		}
1446		}
1447
1448	<	public abstract class CheckedInterruptedCallable<T> implements Callable<T> {
1448	>	public abstract class CheckedInterruptedCallable<T>
1449	>	implements Callable<T> {
1450		protected abstract T realCall() throws Throwable;
1451
1452		public final T call() {
#	Line 590 | Line 1455 | public class JSR166TestCase extends Test
1455		threadShouldThrow("InterruptedException");
1456		return result;
1457		} catch (InterruptedException success) {
1458	<	} catch (Throwable t) {
1459	<	threadUnexpectedException(t);
1458	>	threadAssertFalse(Thread.interrupted());
1459	>	} catch (Throwable fail) {
1460	>	threadUnexpectedException(fail);
1461		}
1462		return null;
1463		}
#	Line 608 | Line 1474 | public class JSR166TestCase extends Test
1474		public static final String TEST_STRING = "a test string";
1475
1476		public static class StringTask implements Callable<String> {
1477	<	public String call() { return TEST_STRING; }
1477	>	final String value;
1478	>	public StringTask() { this(TEST_STRING); }
1479	>	public StringTask(String value) { this.value = value; }
1480	>	public String call() { return value; }
1481		}
1482
1483		public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
1484		return new CheckedCallable<String>() {
1485	<	public String realCall() {
1485	>	protected String realCall() {
1486		try {
1487		latch.await();
1488		} catch (InterruptedException quittingTime) {}
#	Line 621 | Line 1490 | public class JSR166TestCase extends Test
1490		}};
1491		}
1492
1493	+	public Runnable countDowner(final CountDownLatch latch) {
1494	+	return new CheckedRunnable() {
1495	+	public void realRun() throws InterruptedException {
1496	+	latch.countDown();
1497	+	}};
1498	+	}
1499	+
1500	+	class LatchAwaiter extends CheckedRunnable {
1501	+	static final int NEW = 0;
1502	+	static final int RUNNING = 1;
1503	+	static final int DONE = 2;
1504	+	final CountDownLatch latch;
1505	+	int state = NEW;
1506	+	LatchAwaiter(CountDownLatch latch) { this.latch = latch; }
1507	+	public void realRun() throws InterruptedException {
1508	+	state = 1;
1509	+	await(latch);
1510	+	state = 2;
1511	+	}
1512	+	}
1513	+
1514	+	public LatchAwaiter awaiter(CountDownLatch latch) {
1515	+	return new LatchAwaiter(latch);
1516	+	}
1517	+
1518	+	public void await(CountDownLatch latch, long timeoutMillis) {
1519	+	try {
1520	+	if (!latch.await(timeoutMillis, MILLISECONDS))
1521	+	fail("timed out waiting for CountDownLatch for "
1522	+	+ (timeoutMillis/1000) + " sec");
1523	+	} catch (Throwable fail) {
1524	+	threadUnexpectedException(fail);
1525	+	}
1526	+	}
1527	+
1528	+	public void await(CountDownLatch latch) {
1529	+	await(latch, LONG_DELAY_MS);
1530	+	}
1531	+
1532	+	public void await(Semaphore semaphore) {
1533	+	try {
1534	+	if (!semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS))
1535	+	fail("timed out waiting for Semaphore for "
1536	+	+ (LONG_DELAY_MS/1000) + " sec");
1537	+	} catch (Throwable fail) {
1538	+	threadUnexpectedException(fail);
1539	+	}
1540	+	}
1541	+
1542	+	//     /**
1543	+	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1544	+	//      */
1545	+	//     public void await(AtomicBoolean flag) {
1546	+	//         await(flag, LONG_DELAY_MS);
1547	+	//     }
1548	+
1549	+	//     /**
1550	+	//      * Spin-waits up to the specified timeout until flag becomes true.
1551	+	//      */
1552	+	//     public void await(AtomicBoolean flag, long timeoutMillis) {
1553	+	//         long startTime = System.nanoTime();
1554	+	//         while (!flag.get()) {
1555	+	//             if (millisElapsedSince(startTime) > timeoutMillis)
1556	+	//                 throw new AssertionFailedError("timed out");
1557	+	//             Thread.yield();
1558	+	//         }
1559	+	//     }
1560	+
1561		public static class NPETask implements Callable<String> {
1562		public String call() { throw new NullPointerException(); }
1563		}
#	Line 631 | Line 1568 | public class JSR166TestCase extends Test
1568
1569		public class ShortRunnable extends CheckedRunnable {
1570		protected void realRun() throws Throwable {
1571	<	Thread.sleep(SHORT_DELAY_MS);
1571	>	delay(SHORT_DELAY_MS);
1572		}
1573		}
1574
1575		public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1576		protected void realRun() throws InterruptedException {
1577	<	Thread.sleep(SHORT_DELAY_MS);
1577	>	delay(SHORT_DELAY_MS);
1578		}
1579		}
1580
1581		public class SmallRunnable extends CheckedRunnable {
1582		protected void realRun() throws Throwable {
1583	<	Thread.sleep(SMALL_DELAY_MS);
1583	>	delay(SMALL_DELAY_MS);
1584		}
1585		}
1586
1587		public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1588		protected void realRun() {
1589		try {
1590	<	Thread.sleep(SMALL_DELAY_MS);
1590	>	delay(SMALL_DELAY_MS);
1591		} catch (InterruptedException ok) {}
1592		}
1593		}
1594
1595		public class SmallCallable extends CheckedCallable {
1596		protected Object realCall() throws InterruptedException {
1597	<	Thread.sleep(SMALL_DELAY_MS);
1597	>	delay(SMALL_DELAY_MS);
1598		return Boolean.TRUE;
1599		}
1600		}
1601
665	–	public class SmallInterruptedRunnable extends CheckedInterruptedRunnable {
666	–	protected void realRun() throws InterruptedException {
667	–	Thread.sleep(SMALL_DELAY_MS);
668	–	}
669	–	}
670	–
1602		public class MediumRunnable extends CheckedRunnable {
1603		protected void realRun() throws Throwable {
1604	<	Thread.sleep(MEDIUM_DELAY_MS);
1604	>	delay(MEDIUM_DELAY_MS);
1605		}
1606		}
1607
1608		public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1609		protected void realRun() throws InterruptedException {
1610	<	Thread.sleep(MEDIUM_DELAY_MS);
1610	>	delay(MEDIUM_DELAY_MS);
1611		}
1612		}
1613
1614	+	public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1615	+	return new CheckedRunnable() {
1616	+	protected void realRun() {
1617	+	try {
1618	+	delay(timeoutMillis);
1619	+	} catch (InterruptedException ok) {}
1620	+	}};
1621	+	}
1622	+
1623		public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1624		protected void realRun() {
1625		try {
1626	<	Thread.sleep(MEDIUM_DELAY_MS);
1626	>	delay(MEDIUM_DELAY_MS);
1627		} catch (InterruptedException ok) {}
1628		}
1629		}
#	Line 691 | Line 1631 | public class JSR166TestCase extends Test
1631		public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1632		protected void realRun() {
1633		try {
1634	<	Thread.sleep(LONG_DELAY_MS);
1634	>	delay(LONG_DELAY_MS);
1635		} catch (InterruptedException ok) {}
1636		}
1637		}
#	Line 705 | Line 1645 | public class JSR166TestCase extends Test
1645		}
1646		}
1647
1648	+	public interface TrackedRunnable extends Runnable {
1649	+	boolean isDone();
1650	+	}
1651	+
1652	+	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1653	+	return new TrackedRunnable() {
1654	+	private volatile boolean done = false;
1655	+	public boolean isDone() { return done; }
1656	+	public void run() {
1657	+	try {
1658	+	delay(timeoutMillis);
1659	+	done = true;
1660	+	} catch (InterruptedException ok) {}
1661	+	}
1662	+	};
1663	+	}
1664	+
1665		public static class TrackedShortRunnable implements Runnable {
1666		public volatile boolean done = false;
1667		public void run() {
1668		try {
1669	<	Thread.sleep(SMALL_DELAY_MS);
1669	>	delay(SHORT_DELAY_MS);
1670	>	done = true;
1671	>	} catch (InterruptedException ok) {}
1672	>	}
1673	>	}
1674	>
1675	>	public static class TrackedSmallRunnable implements Runnable {
1676	>	public volatile boolean done = false;
1677	>	public void run() {
1678	>	try {
1679	>	delay(SMALL_DELAY_MS);
1680		done = true;
1681		} catch (InterruptedException ok) {}
1682		}
#	Line 719 | Line 1686 | public class JSR166TestCase extends Test
1686		public volatile boolean done = false;
1687		public void run() {
1688		try {
1689	<	Thread.sleep(MEDIUM_DELAY_MS);
1689	>	delay(MEDIUM_DELAY_MS);
1690		done = true;
1691		} catch (InterruptedException ok) {}
1692		}
#	Line 729 | Line 1696 | public class JSR166TestCase extends Test
1696		public volatile boolean done = false;
1697		public void run() {
1698		try {
1699	<	Thread.sleep(LONG_DELAY_MS);
1699	>	delay(LONG_DELAY_MS);
1700		done = true;
1701		} catch (InterruptedException ok) {}
1702		}
#	Line 746 | Line 1713 | public class JSR166TestCase extends Test
1713		public volatile boolean done = false;
1714		public Object call() {
1715		try {
1716	<	Thread.sleep(SMALL_DELAY_MS);
1716	>	delay(SMALL_DELAY_MS);
1717		done = true;
1718		} catch (InterruptedException ok) {}
1719		return Boolean.TRUE;
1720		}
1721		}
1722
1723	+	/**
1724	+	* Analog of CheckedRunnable for RecursiveAction
1725	+	*/
1726	+	public abstract class CheckedRecursiveAction extends RecursiveAction {
1727	+	protected abstract void realCompute() throws Throwable;
1728	+
1729	+	@Override protected final void compute() {
1730	+	try {
1731	+	realCompute();
1732	+	} catch (Throwable fail) {
1733	+	threadUnexpectedException(fail);
1734	+	}
1735	+	}
1736	+	}
1737	+
1738	+	/**
1739	+	* Analog of CheckedCallable for RecursiveTask
1740	+	*/
1741	+	public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1742	+	protected abstract T realCompute() throws Throwable;
1743	+
1744	+	@Override protected final T compute() {
1745	+	try {
1746	+	return realCompute();
1747	+	} catch (Throwable fail) {
1748	+	threadUnexpectedException(fail);
1749	+	return null;
1750	+	}
1751	+	}
1752	+	}
1753
1754		/**
1755		* For use as RejectedExecutionHandler in constructors
#	Line 762 | Line 1759 | public class JSR166TestCase extends Test
1759		ThreadPoolExecutor executor) {}
1760		}
1761
1762	+	/**
1763	+	* A CyclicBarrier that uses timed await and fails with
1764	+	* AssertionFailedErrors instead of throwing checked exceptions.
1765	+	*/
1766	+	public static class CheckedBarrier extends CyclicBarrier {
1767	+	public CheckedBarrier(int parties) { super(parties); }
1768	+
1769	+	public int await() {
1770	+	try {
1771	+	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1772	+	} catch (TimeoutException timedOut) {
1773	+	throw new AssertionFailedError("timed out");
1774	+	} catch (Exception fail) {
1775	+	AssertionFailedError afe =
1776	+	new AssertionFailedError("Unexpected exception: " + fail);
1777	+	afe.initCause(fail);
1778	+	throw afe;
1779	+	}
1780	+	}
1781	+	}
1782	+
1783	+	void checkEmpty(BlockingQueue q) {
1784	+	try {
1785	+	assertTrue(q.isEmpty());
1786	+	assertEquals(0, q.size());
1787	+	assertNull(q.peek());
1788	+	assertNull(q.poll());
1789	+	assertNull(q.poll(0, MILLISECONDS));
1790	+	assertEquals(q.toString(), "[]");
1791	+	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1792	+	assertFalse(q.iterator().hasNext());
1793	+	try {
1794	+	q.element();
1795	+	shouldThrow();
1796	+	} catch (NoSuchElementException success) {}
1797	+	try {
1798	+	q.iterator().next();
1799	+	shouldThrow();
1800	+	} catch (NoSuchElementException success) {}
1801	+	try {
1802	+	q.remove();
1803	+	shouldThrow();
1804	+	} catch (NoSuchElementException success) {}
1805	+	} catch (InterruptedException fail) { threadUnexpectedException(fail); }
1806	+	}
1807	+
1808	+	void assertSerialEquals(Object x, Object y) {
1809	+	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1810	+	}
1811	+
1812	+	void assertNotSerialEquals(Object x, Object y) {
1813	+	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1814	+	}
1815	+
1816	+	byte[] serialBytes(Object o) {
1817	+	try {
1818	+	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1819	+	ObjectOutputStream oos = new ObjectOutputStream(bos);
1820	+	oos.writeObject(o);
1821	+	oos.flush();
1822	+	oos.close();
1823	+	return bos.toByteArray();
1824	+	} catch (Throwable fail) {
1825	+	threadUnexpectedException(fail);
1826	+	return new byte[0];
1827	+	}
1828	+	}
1829	+
1830	+	@SuppressWarnings("unchecked")
1831	+	<T> T serialClone(T o) {
1832	+	try {
1833	+	ObjectInputStream ois = new ObjectInputStream
1834	+	(new ByteArrayInputStream(serialBytes(o)));
1835	+	T clone = (T) ois.readObject();
1836	+	assertSame(o.getClass(), clone.getClass());
1837	+	return clone;
1838	+	} catch (Throwable fail) {
1839	+	threadUnexpectedException(fail);
1840	+	return null;
1841	+	}
1842	+	}
1843	+
1844	+	public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1845	+	Runnable... throwingActions) {
1846	+	for (Runnable throwingAction : throwingActions) {
1847	+	boolean threw = false;
1848	+	try { throwingAction.run(); }
1849	+	catch (Throwable t) {
1850	+	threw = true;
1851	+	if (!expectedExceptionClass.isInstance(t)) {
1852	+	AssertionFailedError afe =
1853	+	new AssertionFailedError
1854	+	("Expected " + expectedExceptionClass.getName() +
1855	+	", got " + t.getClass().getName());
1856	+	afe.initCause(t);
1857	+	threadUnexpectedException(afe);
1858	+	}
1859	+	}
1860	+	if (!threw)
1861	+	shouldThrow(expectedExceptionClass.getName());
1862	+	}
1863	+	}
1864	+
1865	+	public void assertIteratorExhausted(Iterator<?> it) {
1866	+	try {
1867	+	it.next();
1868	+	shouldThrow();
1869	+	} catch (NoSuchElementException success) {}
1870	+	assertFalse(it.hasNext());
1871	+	}
1872	+
1873	+	public <T> Callable<T> callableThrowing(final Exception ex) {
1874	+	return new Callable<T>() { public T call() throws Exception { throw ex; }};
1875	+	}
1876	+
1877	+	public Runnable runnableThrowing(final RuntimeException ex) {
1878	+	return new Runnable() { public void run() { throw ex; }};
1879	+	}
1880	+
1881	+	/** A reusable thread pool to be shared by tests. */
1882	+	static final ExecutorService cachedThreadPool =
1883	+	new ThreadPoolExecutor(0, Integer.MAX_VALUE,
1884	+	1000L, MILLISECONDS,
1885	+	new SynchronousQueue<Runnable>());
1886	+
1887	+	static <T> void shuffle(T[] array) {
1888	+	Collections.shuffle(Arrays.asList(array), ThreadLocalRandom.current());
1889	+	}
1890		}

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