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Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.57 by jsr166, Mon Oct 4 05:45:19 2010 UTC vs.
Revision 1.204 by jsr166, Sat Oct 15 18:51:12 2016 UTC

#	Line 1 | Line 1
1		/*
2		* Written by Doug Lea with assistance from members of JCP JSR-166
3		* Expert Group and released to the public domain, as explained at
4	<	* http://creativecommons.org/licenses/publicdomain
4	>	* http://creativecommons.org/publicdomain/zero/1.0/
5		* Other contributors include Andrew Wright, Jeffrey Hayes,
6		* Pat Fisher, Mike Judd.
7		*/
8
9	<	import junit.framework.*;
10	<	import java.util.PropertyPermission;
11	<	import java.util.concurrent.*;
12	<	import java.util.concurrent.atomic.AtomicReference;
9	>	/*
10	>	* @test
11	>	* @summary JSR-166 tck tests
12	>	* @modules java.management
13	>	* @build *
14	>	* @run junit/othervm/timeout=1000 -Djsr166.testImplementationDetails=true JSR166TestCase
15	>	* @run junit/othervm/timeout=1000 -Djava.util.concurrent.ForkJoinPool.common.parallelism=0 -Djsr166.testImplementationDetails=true JSR166TestCase
16	>	* @run junit/othervm/timeout=1000 -Djava.util.concurrent.ForkJoinPool.common.parallelism=1 -Djava.util.secureRandomSeed=true JSR166TestCase
17	>	*/
18	>
19		import static java.util.concurrent.TimeUnit.MILLISECONDS;
20	+	import static java.util.concurrent.TimeUnit.MINUTES;
21	+	import static java.util.concurrent.TimeUnit.NANOSECONDS;
22	+
23	+	import java.io.ByteArrayInputStream;
24	+	import java.io.ByteArrayOutputStream;
25	+	import java.io.ObjectInputStream;
26	+	import java.io.ObjectOutputStream;
27	+	import java.lang.management.ManagementFactory;
28	+	import java.lang.management.ThreadInfo;
29	+	import java.lang.management.ThreadMXBean;
30	+	import java.lang.reflect.Constructor;
31	+	import java.lang.reflect.Method;
32	+	import java.lang.reflect.Modifier;
33	+	import java.nio.file.Files;
34	+	import java.nio.file.Paths;
35		import java.security.CodeSource;
36		import java.security.Permission;
37		import java.security.PermissionCollection;
#	Line 18 | Line 39 | import java.security.Permissions;
39		import java.security.Policy;
40		import java.security.ProtectionDomain;
41		import java.security.SecurityPermission;
42	+	import java.util.ArrayList;
43	+	import java.util.Arrays;
44	+	import java.util.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 29 | Line 87 | import java.security.SecurityPermission;
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		* {@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
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 {@code
104		* SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS},
#	Line 51 | Line 109 | import java.security.SecurityPermission;
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
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.</li>
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
72	<	* 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 {@code main} 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 96 | 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	<	* Runs all JSR166 unit tests using junit.textui.TestRunner
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.
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 = (args.length == 0) ? 1 : Integer.parseInt(args[0]);
366	<
367	<	Test s = suite();
368	<	for (int i = 0; i < iters; ++i) {
112	<	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(ForkJoinPoolTest.suite());
438	<	suite.addTest(ForkJoinTaskTest.suite());
439	<	suite.addTest(RecursiveActionTest.suite());
440	<	suite.addTest(RecursiveTaskTest.suite());
441	<	suite.addTest(LinkedTransferQueueTest.suite());
442	<	suite.addTest(PhaserTest.suite());
443	<	suite.addTest(ThreadLocalRandomTest.suite());
444	<	suite.addTest(AbstractExecutorServiceTest.suite());
445	<	suite.addTest(AbstractQueueTest.suite());
446	<	suite.addTest(AbstractQueuedSynchronizerTest.suite());
447	<	suite.addTest(AbstractQueuedLongSynchronizerTest.suite());
448	<	suite.addTest(ArrayBlockingQueueTest.suite());
449	<	suite.addTest(ArrayDequeTest.suite());
450	<	suite.addTest(AtomicBooleanTest.suite());
451	<	suite.addTest(AtomicIntegerArrayTest.suite());
452	<	suite.addTest(AtomicIntegerFieldUpdaterTest.suite());
453	<	suite.addTest(AtomicIntegerTest.suite());
454	<	suite.addTest(AtomicLongArrayTest.suite());
455	<	suite.addTest(AtomicLongFieldUpdaterTest.suite());
456	<	suite.addTest(AtomicLongTest.suite());
457	<	suite.addTest(AtomicMarkableReferenceTest.suite());
458	<	suite.addTest(AtomicReferenceArrayTest.suite());
459	<	suite.addTest(AtomicReferenceFieldUpdaterTest.suite());
460	<	suite.addTest(AtomicReferenceTest.suite());
461	<	suite.addTest(AtomicStampedReferenceTest.suite());
462	<	suite.addTest(ConcurrentHashMapTest.suite());
463	<	suite.addTest(ConcurrentLinkedDequeTest.suite());
464	<	suite.addTest(ConcurrentLinkedQueueTest.suite());
465	<	suite.addTest(ConcurrentSkipListMapTest.suite());
466	<	suite.addTest(ConcurrentSkipListSubMapTest.suite());
467	<	suite.addTest(ConcurrentSkipListSetTest.suite());
468	<	suite.addTest(ConcurrentSkipListSubSetTest.suite());
469	<	suite.addTest(CopyOnWriteArrayListTest.suite());
470	<	suite.addTest(CopyOnWriteArraySetTest.suite());
471	<	suite.addTest(CountDownLatchTest.suite());
472	<	suite.addTest(CyclicBarrierTest.suite());
473	<	suite.addTest(DelayQueueTest.suite());
474	<	suite.addTest(EntryTest.suite());
475	<	suite.addTest(ExchangerTest.suite());
476	<	suite.addTest(ExecutorsTest.suite());
477	<	suite.addTest(ExecutorCompletionServiceTest.suite());
478	<	suite.addTest(FutureTaskTest.suite());
479	<	suite.addTest(LinkedBlockingDequeTest.suite());
480	<	suite.addTest(LinkedBlockingQueueTest.suite());
481	<	suite.addTest(LinkedListTest.suite());
482	<	suite.addTest(LockSupportTest.suite());
483	<	suite.addTest(PriorityBlockingQueueTest.suite());
484	<	suite.addTest(PriorityQueueTest.suite());
485	<	suite.addTest(ReentrantLockTest.suite());
486	<	suite.addTest(ReentrantReadWriteLockTest.suite());
487	<	suite.addTest(ScheduledExecutorTest.suite());
488	<	suite.addTest(ScheduledExecutorSubclassTest.suite());
489	<	suite.addTest(SemaphoreTest.suite());
490	<	suite.addTest(SynchronousQueueTest.suite());
491	<	suite.addTest(SystemTest.suite());
492	<	suite.addTest(ThreadLocalTest.suite());
493	<	suite.addTest(ThreadPoolExecutorTest.suite());
494	<	suite.addTest(ThreadPoolExecutorSubclassTest.suite());
495	<	suite.addTest(ThreadTest.suite());
496	<	suite.addTest(TimeUnitTest.suite());
497	<	suite.addTest(TreeMapTest.suite());
498	<	suite.addTest(TreeSetTest.suite());
499	<	suite.addTest(TreeSubMapTest.suite());
500	<	suite.addTest(TreeSubSetTest.suite());
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	>	AtomicBooleanTest.suite(),
451	>	AtomicIntegerArrayTest.suite(),
452	>	AtomicIntegerFieldUpdaterTest.suite(),
453	>	AtomicIntegerTest.suite(),
454	>	AtomicLongArrayTest.suite(),
455	>	AtomicLongFieldUpdaterTest.suite(),
456	>	AtomicLongTest.suite(),
457	>	AtomicMarkableReferenceTest.suite(),
458	>	AtomicReferenceArrayTest.suite(),
459	>	AtomicReferenceFieldUpdaterTest.suite(),
460	>	AtomicReferenceTest.suite(),
461	>	AtomicStampedReferenceTest.suite(),
462	>	ConcurrentHashMapTest.suite(),
463	>	ConcurrentLinkedDequeTest.suite(),
464	>	ConcurrentLinkedQueueTest.suite(),
465	>	ConcurrentSkipListMapTest.suite(),
466	>	ConcurrentSkipListSubMapTest.suite(),
467	>	ConcurrentSkipListSetTest.suite(),
468	>	ConcurrentSkipListSubSetTest.suite(),
469	>	CopyOnWriteArrayListTest.suite(),
470	>	CopyOnWriteArraySetTest.suite(),
471	>	CountDownLatchTest.suite(),
472	>	CountedCompleterTest.suite(),
473	>	CyclicBarrierTest.suite(),
474	>	DelayQueueTest.suite(),
475	>	EntryTest.suite(),
476	>	ExchangerTest.suite(),
477	>	ExecutorsTest.suite(),
478	>	ExecutorCompletionServiceTest.suite(),
479	>	FutureTaskTest.suite(),
480	>	LinkedBlockingDequeTest.suite(),
481	>	LinkedBlockingQueueTest.suite(),
482	>	LinkedListTest.suite(),
483	>	LockSupportTest.suite(),
484	>	PriorityBlockingQueueTest.suite(),
485	>	PriorityQueueTest.suite(),
486	>	ReentrantLockTest.suite(),
487	>	ReentrantReadWriteLockTest.suite(),
488	>	ScheduledExecutorTest.suite(),
489	>	ScheduledExecutorSubclassTest.suite(),
490	>	SemaphoreTest.suite(),
491	>	SynchronousQueueTest.suite(),
492	>	SystemTest.suite(),
493	>	ThreadLocalTest.suite(),
494	>	ThreadPoolExecutorTest.suite(),
495	>	ThreadPoolExecutorSubclassTest.suite(),
496	>	ThreadTest.suite(),
497	>	TimeUnitTest.suite(),
498	>	TreeMapTest.suite(),
499	>	TreeSetTest.suite(),
500	>	TreeSubMapTest.suite(),
501	>	TreeSubSetTest.suite());
502	>
503	>	// Java8+ test classes
504	>	if (atLeastJava8()) {
505	>	String[] java8TestClassNames = {
506	>	"Atomic8Test",
507	>	"CompletableFutureTest",
508	>	"ConcurrentHashMap8Test",
509	>	"CountedCompleter8Test",
510	>	"DoubleAccumulatorTest",
511	>	"DoubleAdderTest",
512	>	"ForkJoinPool8Test",
513	>	"ForkJoinTask8Test",
514	>	"LongAccumulatorTest",
515	>	"LongAdderTest",
516	>	"SplittableRandomTest",
517	>	"StampedLockTest",
518	>	"SubmissionPublisherTest",
519	>	"ThreadLocalRandom8Test",
520	>	"TimeUnit8Test",
521	>	};
522	>	addNamedTestClasses(suite, java8TestClassNames);
523	>	}
524	>
525	>	// Java9+ test classes
526	>	if (atLeastJava9()) {
527	>	String[] java9TestClassNames = {
528	>	"AtomicBoolean9Test",
529	>	"AtomicInteger9Test",
530	>	"AtomicIntegerArray9Test",
531	>	"AtomicLong9Test",
532	>	"AtomicLongArray9Test",
533	>	"AtomicReference9Test",
534	>	"AtomicReferenceArray9Test",
535	>	"ExecutorCompletionService9Test",
536	>	};
537	>	addNamedTestClasses(suite, java9TestClassNames);
538	>	}
539
540		return suite;
541		}
542
543	+	/** Returns list of junit-style test method names in given class. */
544	+	public static ArrayList<String> testMethodNames(Class<?> testClass) {
545	+	Method[] methods = testClass.getDeclaredMethods();
546	+	ArrayList<String> names = new ArrayList<String>(methods.length);
547	+	for (Method method : methods) {
548	+	if (method.getName().startsWith("test")
549	+	&& Modifier.isPublic(method.getModifiers())
550	+	// method.getParameterCount() requires jdk8+
551	+	&& method.getParameterTypes().length == 0) {
552	+	names.add(method.getName());
553	+	}
554	+	}
555	+	return names;
556	+	}
557	+
558	+	/**
559	+	* Returns junit-style testSuite for the given test class, but
560	+	* parameterized by passing extra data to each test.
561	+	*/
562	+	public static <ExtraData> Test parameterizedTestSuite
563	+	(Class<? extends JSR166TestCase> testClass,
564	+	Class<ExtraData> dataClass,
565	+	ExtraData data) {
566	+	try {
567	+	TestSuite suite = new TestSuite();
568	+	Constructor c =
569	+	testClass.getDeclaredConstructor(dataClass, String.class);
570	+	for (String methodName : testMethodNames(testClass))
571	+	suite.addTest((Test) c.newInstance(data, methodName));
572	+	return suite;
573	+	} catch (Exception e) {
574	+	throw new Error(e);
575	+	}
576	+	}
577	+
578	+	/**
579	+	* Returns junit-style testSuite for the jdk8 extension of the
580	+	* given test class, but parameterized by passing extra data to
581	+	* each test.  Uses reflection to allow compilation in jdk7.
582	+	*/
583	+	public static <ExtraData> Test jdk8ParameterizedTestSuite
584	+	(Class<? extends JSR166TestCase> testClass,
585	+	Class<ExtraData> dataClass,
586	+	ExtraData data) {
587	+	if (atLeastJava8()) {
588	+	String name = testClass.getName();
589	+	String name8 = name.replaceAll("Test$", "8Test");
590	+	if (name.equals(name8)) throw new Error(name);
591	+	try {
592	+	return (Test)
593	+	Class.forName(name8)
594	+	.getMethod("testSuite", new Class[] { dataClass })
595	+	.invoke(null, data);
596	+	} catch (Exception e) {
597	+	throw new Error(e);
598	+	}
599	+	} else {
600	+	return new TestSuite();
601	+	}
602	+	}
603	+
604	+	// Delays for timing-dependent tests, in milliseconds.
605
606		public static long SHORT_DELAY_MS;
607		public static long SMALL_DELAY_MS;
608		public static long MEDIUM_DELAY_MS;
609		public static long LONG_DELAY_MS;
610
199	–
611		/**
612	<	* Returns the shortest timed delay. This could
613	<	* be reimplemented to use for example a Property.
612	>	* Returns the shortest timed delay. This can be scaled up for
613	>	* slow machines using the jsr166.delay.factor system property,
614	>	* or via jtreg's -timeoutFactor: flag.
615	>	* http://openjdk.java.net/jtreg/command-help.html
616		*/
617		protected long getShortDelay() {
618	<	return 50;
618	>	return (long) (50 * delayFactor);
619		}
620
208	–
621		/**
622		* Sets delays as multiples of SHORT_DELAY.
623		*/
#	Line 213 | Line 625 | public class JSR166TestCase extends Test
625		SHORT_DELAY_MS = getShortDelay();
626		SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
627		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
628	<	LONG_DELAY_MS   = SHORT_DELAY_MS * 50;
628	>	LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
629	>	}
630	>
631	>	/**
632	>	* Returns a timeout in milliseconds to be used in tests that
633	>	* verify that operations block or time out.
634	>	*/
635	>	long timeoutMillis() {
636	>	return SHORT_DELAY_MS / 4;
637	>	}
638	>
639	>	/**
640	>	* Returns a new Date instance representing a time at least
641	>	* delayMillis milliseconds in the future.
642	>	*/
643	>	Date delayedDate(long delayMillis) {
644	>	// Add 1 because currentTimeMillis is known to round into the past.
645	>	return new Date(System.currentTimeMillis() + delayMillis + 1);
646		}
647
648		/**
#	Line 229 | Line 658 | public class JSR166TestCase extends Test
658		* the same test have no effect.
659		*/
660		public void threadRecordFailure(Throwable t) {
661	+	System.err.println(t);
662	+	dumpTestThreads();
663		threadFailure.compareAndSet(null, t);
664		}
665
#	Line 236 | Line 667 | public class JSR166TestCase extends Test
667		setDelays();
668		}
669
670	+	void tearDownFail(String format, Object... args) {
671	+	String msg = toString() + ": " + String.format(format, args);
672	+	System.err.println(msg);
673	+	dumpTestThreads();
674	+	throw new AssertionFailedError(msg);
675	+	}
676	+
677		/**
678	+	* Extra checks that get done for all test cases.
679	+	*
680		* Triggers test case failure if any thread assertions have failed,
681		* by rethrowing, in the test harness thread, any exception recorded
682		* earlier by threadRecordFailure.
683	+	*
684	+	* Triggers test case failure if interrupt status is set in the main thread.
685		*/
686		public void tearDown() throws Exception {
687	<	Throwable t = threadFailure.get();
687	>	Throwable t = threadFailure.getAndSet(null);
688		if (t != null) {
689		if (t instanceof Error)
690		throw (Error) t;
#	Line 257 | Line 699 | public class JSR166TestCase extends Test
699		throw afe;
700		}
701		}
702	+
703	+	if (Thread.interrupted())
704	+	tearDownFail("interrupt status set in main thread");
705	+
706	+	checkForkJoinPoolThreadLeaks();
707	+	}
708	+
709	+	/**
710	+	* Finds missing PoolCleaners
711	+	*/
712	+	void checkForkJoinPoolThreadLeaks() throws InterruptedException {
713	+	Thread[] survivors = new Thread[7];
714	+	int count = Thread.enumerate(survivors);
715	+	for (int i = 0; i < count; i++) {
716	+	Thread thread = survivors[i];
717	+	String name = thread.getName();
718	+	if (name.startsWith("ForkJoinPool-")) {
719	+	// give thread some time to terminate
720	+	thread.join(LONG_DELAY_MS);
721	+	if (thread.isAlive())
722	+	tearDownFail("Found leaked ForkJoinPool thread thread=%s",
723	+	thread);
724	+	}
725	+	}
726	+
727	+	if (!ForkJoinPool.commonPool()
728	+	.awaitQuiescence(LONG_DELAY_MS, MILLISECONDS))
729	+	tearDownFail("ForkJoin common pool thread stuck");
730		}
731
732		/**
#	Line 269 | Line 739 | public class JSR166TestCase extends Test
739		fail(reason);
740		} catch (AssertionFailedError t) {
741		threadRecordFailure(t);
742	<	fail(reason);
742	>	throw t;
743		}
744		}
745
#	Line 337 | Line 807 | public class JSR166TestCase extends Test
807		public void threadAssertEquals(Object x, Object y) {
808		try {
809		assertEquals(x, y);
810	<	} catch (AssertionFailedError t) {
811	<	threadRecordFailure(t);
812	<	throw t;
813	<	} catch (Throwable t) {
814	<	threadUnexpectedException(t);
810	>	} catch (AssertionFailedError fail) {
811	>	threadRecordFailure(fail);
812	>	throw fail;
813	>	} catch (Throwable fail) {
814	>	threadUnexpectedException(fail);
815		}
816		}
817
#	Line 353 | Line 823 | public class JSR166TestCase extends Test
823		public void threadAssertSame(Object x, Object y) {
824		try {
825		assertSame(x, y);
826	<	} catch (AssertionFailedError t) {
827	<	threadRecordFailure(t);
828	<	throw t;
826	>	} catch (AssertionFailedError fail) {
827	>	threadRecordFailure(fail);
828	>	throw fail;
829		}
830		}
831
#	Line 388 | Line 858 | public class JSR166TestCase extends Test
858		else {
859		AssertionFailedError afe =
860		new AssertionFailedError("unexpected exception: " + t);
861	<	t.initCause(t);
861	>	afe.initCause(t);
862		throw afe;
863		}
864		}
865
866		/**
867	+	* Delays, via Thread.sleep, for the given millisecond delay, but
868	+	* if the sleep is shorter than specified, may re-sleep or yield
869	+	* until time elapses.  Ensures that the given time, as measured
870	+	* by System.nanoTime(), has elapsed.
871	+	*/
872	+	static void delay(long millis) throws InterruptedException {
873	+	long nanos = millis * (1000 * 1000);
874	+	final long wakeupTime = System.nanoTime() + nanos;
875	+	do {
876	+	if (millis > 0L)
877	+	Thread.sleep(millis);
878	+	else // too short to sleep
879	+	Thread.yield();
880	+	nanos = wakeupTime - System.nanoTime();
881	+	millis = nanos / (1000 * 1000);
882	+	} while (nanos >= 0L);
883	+	}
884	+
885	+	/**
886	+	* Allows use of try-with-resources with per-test thread pools.
887	+	*/
888	+	class PoolCleaner implements AutoCloseable {
889	+	private final ExecutorService pool;
890	+	public PoolCleaner(ExecutorService pool) { this.pool = pool; }
891	+	public void close() { joinPool(pool); }
892	+	}
893	+
894	+	/**
895	+	* An extension of PoolCleaner that has an action to release the pool.
896	+	*/
897	+	class PoolCleanerWithReleaser extends PoolCleaner {
898	+	private final Runnable releaser;
899	+	public PoolCleanerWithReleaser(ExecutorService pool, Runnable releaser) {
900	+	super(pool);
901	+	this.releaser = releaser;
902	+	}
903	+	public void close() {
904	+	try {
905	+	releaser.run();
906	+	} finally {
907	+	super.close();
908	+	}
909	+	}
910	+	}
911	+
912	+	PoolCleaner cleaner(ExecutorService pool) {
913	+	return new PoolCleaner(pool);
914	+	}
915	+
916	+	PoolCleaner cleaner(ExecutorService pool, Runnable releaser) {
917	+	return new PoolCleanerWithReleaser(pool, releaser);
918	+	}
919	+
920	+	PoolCleaner cleaner(ExecutorService pool, CountDownLatch latch) {
921	+	return new PoolCleanerWithReleaser(pool, releaser(latch));
922	+	}
923	+
924	+	Runnable releaser(final CountDownLatch latch) {
925	+	return new Runnable() { public void run() {
926	+	do { latch.countDown(); }
927	+	while (latch.getCount() > 0);
928	+	}};
929	+	}
930	+
931	+	PoolCleaner cleaner(ExecutorService pool, AtomicBoolean flag) {
932	+	return new PoolCleanerWithReleaser(pool, releaser(flag));
933	+	}
934	+
935	+	Runnable releaser(final AtomicBoolean flag) {
936	+	return new Runnable() { public void run() { flag.set(true); }};
937	+	}
938	+
939	+	/**
940		* Waits out termination of a thread pool or fails doing so.
941		*/
942	<	public void joinPool(ExecutorService exec) {
942	>	void joinPool(ExecutorService pool) {
943		try {
944	<	exec.shutdown();
945	<	assertTrue("ExecutorService did not terminate in a timely manner",
946	<	exec.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
944	>	pool.shutdown();
945	>	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)) {
946	>	try {
947	>	threadFail("ExecutorService " + pool +
948	>	" did not terminate in a timely manner");
949	>	} finally {
950	>	// last resort, for the benefit of subsequent tests
951	>	pool.shutdownNow();
952	>	pool.awaitTermination(MEDIUM_DELAY_MS, MILLISECONDS);
953	>	}
954	>	}
955		} catch (SecurityException ok) {
956		// Allowed in case test doesn't have privs
957	<	} catch (InterruptedException ie) {
958	<	fail("Unexpected InterruptedException");
957	>	} catch (InterruptedException fail) {
958	>	threadFail("Unexpected InterruptedException");
959	>	}
960	>	}
961	>
962	>	/**
963	>	* Like Runnable, but with the freedom to throw anything.
964	>	* junit folks had the same idea:
965	>	* http://junit.org/junit5/docs/snapshot/api/org/junit/gen5/api/Executable.html
966	>	*/
967	>	interface Action { public void run() throws Throwable; }
968	>
969	>	/**
970	>	* Runs all the given actions in parallel, failing if any fail.
971	>	* Useful for running multiple variants of tests that are
972	>	* necessarily individually slow because they must block.
973	>	*/
974	>	void testInParallel(Action ... actions) {
975	>	ExecutorService pool = Executors.newCachedThreadPool();
976	>	try (PoolCleaner cleaner = cleaner(pool)) {
977	>	ArrayList<Future<?>> futures = new ArrayList<>(actions.length);
978	>	for (final Action action : actions)
979	>	futures.add(pool.submit(new CheckedRunnable() {
980	>	public void realRun() throws Throwable { action.run();}}));
981	>	for (Future<?> future : futures)
982	>	try {
983	>	assertNull(future.get(LONG_DELAY_MS, MILLISECONDS));
984	>	} catch (ExecutionException ex) {
985	>	threadUnexpectedException(ex.getCause());
986	>	} catch (Exception ex) {
987	>	threadUnexpectedException(ex);
988	>	}
989	>	}
990	>	}
991	>
992	>	/**
993	>	* A debugging tool to print stack traces of most threads, as jstack does.
994	>	* Uninteresting threads are filtered out.
995	>	*/
996	>	static void dumpTestThreads() {
997	>	SecurityManager sm = System.getSecurityManager();
998	>	if (sm != null) {
999	>	try {
1000	>	System.setSecurityManager(null);
1001	>	} catch (SecurityException giveUp) {
1002	>	return;
1003	>	}
1004	>	}
1005	>
1006	>	ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
1007	>	System.err.println("------ stacktrace dump start ------");
1008	>	for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) {
1009	>	final String name = info.getThreadName();
1010	>	String lockName;
1011	>	if ("Signal Dispatcher".equals(name))
1012	>	continue;
1013	>	if ("Reference Handler".equals(name)
1014	>	&& (lockName = info.getLockName()) != null
1015	>	&& lockName.startsWith("java.lang.ref.Reference$Lock"))
1016	>	continue;
1017	>	if ("Finalizer".equals(name)
1018	>	&& (lockName = info.getLockName()) != null
1019	>	&& lockName.startsWith("java.lang.ref.ReferenceQueue$Lock"))
1020	>	continue;
1021	>	if ("checkForWedgedTest".equals(name))
1022	>	continue;
1023	>	System.err.print(info);
1024		}
1025	+	System.err.println("------ stacktrace dump end ------");
1026	+
1027	+	if (sm != null) System.setSecurityManager(sm);
1028		}
1029
1030	+	/**
1031	+	* Checks that thread does not terminate within the default
1032	+	* millisecond delay of {@code timeoutMillis()}.
1033	+	*/
1034	+	void assertThreadStaysAlive(Thread thread) {
1035	+	assertThreadStaysAlive(thread, timeoutMillis());
1036	+	}
1037	+
1038	+	/**
1039	+	* Checks that thread does not terminate within the given millisecond delay.
1040	+	*/
1041	+	void assertThreadStaysAlive(Thread thread, long millis) {
1042	+	try {
1043	+	// No need to optimize the failing case via Thread.join.
1044	+	delay(millis);
1045	+	assertTrue(thread.isAlive());
1046	+	} catch (InterruptedException fail) {
1047	+	threadFail("Unexpected InterruptedException");
1048	+	}
1049	+	}
1050	+
1051	+	/**
1052	+	* Checks that the threads do not terminate within the default
1053	+	* millisecond delay of {@code timeoutMillis()}.
1054	+	*/
1055	+	void assertThreadsStayAlive(Thread... threads) {
1056	+	assertThreadsStayAlive(timeoutMillis(), threads);
1057	+	}
1058	+
1059	+	/**
1060	+	* Checks that the threads do not terminate within the given millisecond delay.
1061	+	*/
1062	+	void assertThreadsStayAlive(long millis, Thread... threads) {
1063	+	try {
1064	+	// No need to optimize the failing case via Thread.join.
1065	+	delay(millis);
1066	+	for (Thread thread : threads)
1067	+	assertTrue(thread.isAlive());
1068	+	} catch (InterruptedException fail) {
1069	+	threadFail("Unexpected InterruptedException");
1070	+	}
1071	+	}
1072	+
1073	+	/**
1074	+	* Checks that future.get times out, with the default timeout of
1075	+	* {@code timeoutMillis()}.
1076	+	*/
1077	+	void assertFutureTimesOut(Future future) {
1078	+	assertFutureTimesOut(future, timeoutMillis());
1079	+	}
1080	+
1081	+	/**
1082	+	* Checks that future.get times out, with the given millisecond timeout.
1083	+	*/
1084	+	void assertFutureTimesOut(Future future, long timeoutMillis) {
1085	+	long startTime = System.nanoTime();
1086	+	try {
1087	+	future.get(timeoutMillis, MILLISECONDS);
1088	+	shouldThrow();
1089	+	} catch (TimeoutException success) {
1090	+	} catch (Exception fail) {
1091	+	threadUnexpectedException(fail);
1092	+	} finally { future.cancel(true); }
1093	+	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
1094	+	}
1095
1096		/**
1097		* Fails with message "should throw exception".
#	Line 448 | Line 1132 | public class JSR166TestCase extends Test
1132		public static final Integer m6  = new Integer(-6);
1133		public static final Integer m10 = new Integer(-10);
1134
451	–
1135		/**
1136		* Runs Runnable r with a security policy that permits precisely
1137		* the specified permissions.  If there is no current security
#	Line 460 | Line 1143 | public class JSR166TestCase extends Test
1143		SecurityManager sm = System.getSecurityManager();
1144		if (sm == null) {
1145		r.run();
1146	+	}
1147	+	runWithSecurityManagerWithPermissions(r, permissions);
1148	+	}
1149	+
1150	+	/**
1151	+	* Runs Runnable r with a security policy that permits precisely
1152	+	* the specified permissions.  If there is no current security
1153	+	* manager, a temporary one is set for the duration of the
1154	+	* Runnable.  We require that any security manager permit
1155	+	* getPolicy/setPolicy.
1156	+	*/
1157	+	public void runWithSecurityManagerWithPermissions(Runnable r,
1158	+	Permission... permissions) {
1159	+	SecurityManager sm = System.getSecurityManager();
1160	+	if (sm == null) {
1161		Policy savedPolicy = Policy.getPolicy();
1162		try {
1163		Policy.setPolicy(permissivePolicy());
1164		System.setSecurityManager(new SecurityManager());
1165	<	runWithPermissions(r, permissions);
1165	>	runWithSecurityManagerWithPermissions(r, permissions);
1166		} finally {
1167		System.setSecurityManager(null);
1168		Policy.setPolicy(savedPolicy);
#	Line 512 | Line 1210 | public class JSR166TestCase extends Test
1210		return perms.implies(p);
1211		}
1212		public void refresh() {}
1213	+	public String toString() {
1214	+	List<Permission> ps = new ArrayList<Permission>();
1215	+	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
1216	+	ps.add(e.nextElement());
1217	+	return "AdjustablePolicy with permissions " + ps;
1218	+	}
1219		}
1220
1221		/**
#	Line 534 | Line 1238 | public class JSR166TestCase extends Test
1238		}
1239
1240		/**
1241	<	* Sleep until the timeout has elapsed, or interrupted.
1242	<	* Does <em>NOT</em> throw InterruptedException.
1241	>	* Sleeps until the given time has elapsed.
1242	>	* Throws AssertionFailedError if interrupted.
1243		*/
1244	<	void sleepTillInterrupted(long timeoutMillis) {
1244	>	static void sleep(long millis) {
1245		try {
1246	<	Thread.sleep(timeoutMillis);
1247	<	} catch (InterruptedException wakeup) {}
1246	>	delay(millis);
1247	>	} catch (InterruptedException fail) {
1248	>	AssertionFailedError afe =
1249	>	new AssertionFailedError("Unexpected InterruptedException");
1250	>	afe.initCause(fail);
1251	>	throw afe;
1252	>	}
1253	>	}
1254	>
1255	>	/**
1256	>	* Spin-waits up to the specified number of milliseconds for the given
1257	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1258	>	*/
1259	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1260	>	long startTime = 0L;
1261	>	for (;;) {
1262	>	Thread.State s = thread.getState();
1263	>	if (s == Thread.State.BLOCKED ||
1264	>	s == Thread.State.WAITING ||
1265	>	s == Thread.State.TIMED_WAITING)
1266	>	return;
1267	>	else if (s == Thread.State.TERMINATED)
1268	>	fail("Unexpected thread termination");
1269	>	else if (startTime == 0L)
1270	>	startTime = System.nanoTime();
1271	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
1272	>	threadAssertTrue(thread.isAlive());
1273	>	return;
1274	>	}
1275	>	Thread.yield();
1276	>	}
1277	>	}
1278	>
1279	>	/**
1280	>	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
1281	>	* state: BLOCKED, WAITING, or TIMED_WAITING.
1282	>	*/
1283	>	void waitForThreadToEnterWaitState(Thread thread) {
1284	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
1285	>	}
1286	>
1287	>	/**
1288	>	* Returns the number of milliseconds since time given by
1289	>	* startNanoTime, which must have been previously returned from a
1290	>	* call to {@link System#nanoTime()}.
1291	>	*/
1292	>	static long millisElapsedSince(long startNanoTime) {
1293	>	return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
1294	>	}
1295	>
1296	>	//     void assertTerminatesPromptly(long timeoutMillis, Runnable r) {
1297	>	//         long startTime = System.nanoTime();
1298	>	//         try {
1299	>	//             r.run();
1300	>	//         } catch (Throwable fail) { threadUnexpectedException(fail); }
1301	>	//         if (millisElapsedSince(startTime) > timeoutMillis/2)
1302	>	//             throw new AssertionFailedError("did not return promptly");
1303	>	//     }
1304	>
1305	>	//     void assertTerminatesPromptly(Runnable r) {
1306	>	//         assertTerminatesPromptly(LONG_DELAY_MS/2, r);
1307	>	//     }
1308	>
1309	>	/**
1310	>	* Checks that timed f.get() returns the expected value, and does not
1311	>	* wait for the timeout to elapse before returning.
1312	>	*/
1313	>	<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
1314	>	long startTime = System.nanoTime();
1315	>	try {
1316	>	assertEquals(expectedValue, f.get(timeoutMillis, MILLISECONDS));
1317	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
1318	>	if (millisElapsedSince(startTime) > timeoutMillis/2)
1319	>	throw new AssertionFailedError("timed get did not return promptly");
1320	>	}
1321	>
1322	>	<T> void checkTimedGet(Future<T> f, T expectedValue) {
1323	>	checkTimedGet(f, expectedValue, LONG_DELAY_MS);
1324		}
1325
1326		/**
1327	<	* Returns a new started Thread running the given runnable.
1327	>	* Returns a new started daemon Thread running the given runnable.
1328		*/
1329		Thread newStartedThread(Runnable runnable) {
1330		Thread t = new Thread(runnable);
1331	+	t.setDaemon(true);
1332		t.start();
1333		return t;
1334		}
1335
1336	+	/**
1337	+	* Waits for the specified time (in milliseconds) for the thread
1338	+	* to terminate (using {@link Thread#join(long)}), else interrupts
1339	+	* the thread (in the hope that it may terminate later) and fails.
1340	+	*/
1341	+	void awaitTermination(Thread t, long timeoutMillis) {
1342	+	try {
1343	+	t.join(timeoutMillis);
1344	+	} catch (InterruptedException fail) {
1345	+	threadUnexpectedException(fail);
1346	+	} finally {
1347	+	if (t.getState() != Thread.State.TERMINATED) {
1348	+	t.interrupt();
1349	+	threadFail("timed out waiting for thread to terminate");
1350	+	}
1351	+	}
1352	+	}
1353	+
1354	+	/**
1355	+	* Waits for LONG_DELAY_MS milliseconds for the thread to
1356	+	* terminate (using {@link Thread#join(long)}), else interrupts
1357	+	* the thread (in the hope that it may terminate later) and fails.
1358	+	*/
1359	+	void awaitTermination(Thread t) {
1360	+	awaitTermination(t, LONG_DELAY_MS);
1361	+	}
1362	+
1363		// Some convenient Runnable classes
1364
1365		public abstract class CheckedRunnable implements Runnable {
#	Line 560 | Line 1368 | public class JSR166TestCase extends Test
1368		public final void run() {
1369		try {
1370		realRun();
1371	<	} catch (Throwable t) {
1372	<	threadUnexpectedException(t);
1371	>	} catch (Throwable fail) {
1372	>	threadUnexpectedException(fail);
1373		}
1374		}
1375		}
#	Line 614 | Line 1422 | public class JSR166TestCase extends Test
1422		realRun();
1423		threadShouldThrow("InterruptedException");
1424		} catch (InterruptedException success) {
1425	<	} catch (Throwable t) {
1426	<	threadUnexpectedException(t);
1425	>	threadAssertFalse(Thread.interrupted());
1426	>	} catch (Throwable fail) {
1427	>	threadUnexpectedException(fail);
1428		}
1429		}
1430		}
#	Line 626 | Line 1435 | public class JSR166TestCase extends Test
1435		public final T call() {
1436		try {
1437		return realCall();
1438	<	} catch (Throwable t) {
1439	<	threadUnexpectedException(t);
1438	>	} catch (Throwable fail) {
1439	>	threadUnexpectedException(fail);
1440		return null;
1441		}
1442		}
#	Line 643 | Line 1452 | public class JSR166TestCase extends Test
1452		threadShouldThrow("InterruptedException");
1453		return result;
1454		} catch (InterruptedException success) {
1455	<	} catch (Throwable t) {
1456	<	threadUnexpectedException(t);
1455	>	threadAssertFalse(Thread.interrupted());
1456	>	} catch (Throwable fail) {
1457	>	threadUnexpectedException(fail);
1458		}
1459		return null;
1460		}
#	Line 661 | Line 1471 | public class JSR166TestCase extends Test
1471		public static final String TEST_STRING = "a test string";
1472
1473		public static class StringTask implements Callable<String> {
1474	<	public String call() { return TEST_STRING; }
1474	>	final String value;
1475	>	public StringTask() { this(TEST_STRING); }
1476	>	public StringTask(String value) { this.value = value; }
1477	>	public String call() { return value; }
1478		}
1479
1480		public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
1481		return new CheckedCallable<String>() {
1482	<	public String realCall() {
1482	>	protected String realCall() {
1483		try {
1484		latch.await();
1485		} catch (InterruptedException quittingTime) {}
#	Line 674 | Line 1487 | public class JSR166TestCase extends Test
1487		}};
1488		}
1489
1490	+	public Runnable countDowner(final CountDownLatch latch) {
1491	+	return new CheckedRunnable() {
1492	+	public void realRun() throws InterruptedException {
1493	+	latch.countDown();
1494	+	}};
1495	+	}
1496	+
1497	+	class LatchAwaiter extends CheckedRunnable {
1498	+	static final int NEW = 0;
1499	+	static final int RUNNING = 1;
1500	+	static final int DONE = 2;
1501	+	final CountDownLatch latch;
1502	+	int state = NEW;
1503	+	LatchAwaiter(CountDownLatch latch) { this.latch = latch; }
1504	+	public void realRun() throws InterruptedException {
1505	+	state = 1;
1506	+	await(latch);
1507	+	state = 2;
1508	+	}
1509	+	}
1510	+
1511	+	public LatchAwaiter awaiter(CountDownLatch latch) {
1512	+	return new LatchAwaiter(latch);
1513	+	}
1514	+
1515	+	public void await(CountDownLatch latch, long timeoutMillis) {
1516	+	try {
1517	+	if (!latch.await(timeoutMillis, MILLISECONDS))
1518	+	fail("timed out waiting for CountDownLatch for "
1519	+	+ (timeoutMillis/1000) + " sec");
1520	+	} catch (Throwable fail) {
1521	+	threadUnexpectedException(fail);
1522	+	}
1523	+	}
1524	+
1525	+	public void await(CountDownLatch latch) {
1526	+	await(latch, LONG_DELAY_MS);
1527	+	}
1528	+
1529	+	public void await(Semaphore semaphore) {
1530	+	try {
1531	+	if (!semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS))
1532	+	fail("timed out waiting for Semaphore for "
1533	+	+ (LONG_DELAY_MS/1000) + " sec");
1534	+	} catch (Throwable fail) {
1535	+	threadUnexpectedException(fail);
1536	+	}
1537	+	}
1538	+
1539	+	//     /**
1540	+	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1541	+	//      */
1542	+	//     public void await(AtomicBoolean flag) {
1543	+	//         await(flag, LONG_DELAY_MS);
1544	+	//     }
1545	+
1546	+	//     /**
1547	+	//      * Spin-waits up to the specified timeout until flag becomes true.
1548	+	//      */
1549	+	//     public void await(AtomicBoolean flag, long timeoutMillis) {
1550	+	//         long startTime = System.nanoTime();
1551	+	//         while (!flag.get()) {
1552	+	//             if (millisElapsedSince(startTime) > timeoutMillis)
1553	+	//                 throw new AssertionFailedError("timed out");
1554	+	//             Thread.yield();
1555	+	//         }
1556	+	//     }
1557	+
1558		public static class NPETask implements Callable<String> {
1559		public String call() { throw new NullPointerException(); }
1560		}
#	Line 684 | Line 1565 | public class JSR166TestCase extends Test
1565
1566		public class ShortRunnable extends CheckedRunnable {
1567		protected void realRun() throws Throwable {
1568	<	Thread.sleep(SHORT_DELAY_MS);
1568	>	delay(SHORT_DELAY_MS);
1569		}
1570		}
1571
1572		public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1573		protected void realRun() throws InterruptedException {
1574	<	Thread.sleep(SHORT_DELAY_MS);
1574	>	delay(SHORT_DELAY_MS);
1575		}
1576		}
1577
1578		public class SmallRunnable extends CheckedRunnable {
1579		protected void realRun() throws Throwable {
1580	<	Thread.sleep(SMALL_DELAY_MS);
1580	>	delay(SMALL_DELAY_MS);
1581		}
1582		}
1583
1584		public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1585		protected void realRun() {
1586		try {
1587	<	Thread.sleep(SMALL_DELAY_MS);
1587	>	delay(SMALL_DELAY_MS);
1588		} catch (InterruptedException ok) {}
1589		}
1590		}
1591
1592		public class SmallCallable extends CheckedCallable {
1593		protected Object realCall() throws InterruptedException {
1594	<	Thread.sleep(SMALL_DELAY_MS);
1594	>	delay(SMALL_DELAY_MS);
1595		return Boolean.TRUE;
1596		}
1597		}
1598
1599		public class MediumRunnable extends CheckedRunnable {
1600		protected void realRun() throws Throwable {
1601	<	Thread.sleep(MEDIUM_DELAY_MS);
1601	>	delay(MEDIUM_DELAY_MS);
1602		}
1603		}
1604
1605		public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1606		protected void realRun() throws InterruptedException {
1607	<	Thread.sleep(MEDIUM_DELAY_MS);
1607	>	delay(MEDIUM_DELAY_MS);
1608		}
1609		}
1610
1611	+	public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1612	+	return new CheckedRunnable() {
1613	+	protected void realRun() {
1614	+	try {
1615	+	delay(timeoutMillis);
1616	+	} catch (InterruptedException ok) {}
1617	+	}};
1618	+	}
1619	+
1620		public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1621		protected void realRun() {
1622		try {
1623	<	Thread.sleep(MEDIUM_DELAY_MS);
1623	>	delay(MEDIUM_DELAY_MS);
1624		} catch (InterruptedException ok) {}
1625		}
1626		}
#	Line 738 | Line 1628 | public class JSR166TestCase extends Test
1628		public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1629		protected void realRun() {
1630		try {
1631	<	Thread.sleep(LONG_DELAY_MS);
1631	>	delay(LONG_DELAY_MS);
1632		} catch (InterruptedException ok) {}
1633		}
1634		}
#	Line 752 | Line 1642 | public class JSR166TestCase extends Test
1642		}
1643		}
1644
1645	+	public interface TrackedRunnable extends Runnable {
1646	+	boolean isDone();
1647	+	}
1648	+
1649	+	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1650	+	return new TrackedRunnable() {
1651	+	private volatile boolean done = false;
1652	+	public boolean isDone() { return done; }
1653	+	public void run() {
1654	+	try {
1655	+	delay(timeoutMillis);
1656	+	done = true;
1657	+	} catch (InterruptedException ok) {}
1658	+	}
1659	+	};
1660	+	}
1661	+
1662		public static class TrackedShortRunnable implements Runnable {
1663		public volatile boolean done = false;
1664		public void run() {
1665		try {
1666	<	Thread.sleep(SMALL_DELAY_MS);
1666	>	delay(SHORT_DELAY_MS);
1667	>	done = true;
1668	>	} catch (InterruptedException ok) {}
1669	>	}
1670	>	}
1671	>
1672	>	public static class TrackedSmallRunnable implements Runnable {
1673	>	public volatile boolean done = false;
1674	>	public void run() {
1675	>	try {
1676	>	delay(SMALL_DELAY_MS);
1677		done = true;
1678		} catch (InterruptedException ok) {}
1679		}
#	Line 766 | Line 1683 | public class JSR166TestCase extends Test
1683		public volatile boolean done = false;
1684		public void run() {
1685		try {
1686	<	Thread.sleep(MEDIUM_DELAY_MS);
1686	>	delay(MEDIUM_DELAY_MS);
1687		done = true;
1688		} catch (InterruptedException ok) {}
1689		}
#	Line 776 | Line 1693 | public class JSR166TestCase extends Test
1693		public volatile boolean done = false;
1694		public void run() {
1695		try {
1696	<	Thread.sleep(LONG_DELAY_MS);
1696	>	delay(LONG_DELAY_MS);
1697		done = true;
1698		} catch (InterruptedException ok) {}
1699		}
#	Line 793 | Line 1710 | public class JSR166TestCase extends Test
1710		public volatile boolean done = false;
1711		public Object call() {
1712		try {
1713	<	Thread.sleep(SMALL_DELAY_MS);
1713	>	delay(SMALL_DELAY_MS);
1714		done = true;
1715		} catch (InterruptedException ok) {}
1716		return Boolean.TRUE;
#	Line 806 | Line 1723 | public class JSR166TestCase extends Test
1723		public abstract class CheckedRecursiveAction extends RecursiveAction {
1724		protected abstract void realCompute() throws Throwable;
1725
1726	<	public final void compute() {
1726	>	@Override protected final void compute() {
1727		try {
1728		realCompute();
1729	<	} catch (Throwable t) {
1730	<	threadUnexpectedException(t);
1729	>	} catch (Throwable fail) {
1730	>	threadUnexpectedException(fail);
1731		}
1732		}
1733		}
#	Line 821 | Line 1738 | public class JSR166TestCase extends Test
1738		public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1739		protected abstract T realCompute() throws Throwable;
1740
1741	<	public final T compute() {
1741	>	@Override protected final T compute() {
1742		try {
1743		return realCompute();
1744	<	} catch (Throwable t) {
1745	<	threadUnexpectedException(t);
1744	>	} catch (Throwable fail) {
1745	>	threadUnexpectedException(fail);
1746		return null;
1747		}
1748		}
#	Line 839 | Line 1756 | public class JSR166TestCase extends Test
1756		ThreadPoolExecutor executor) {}
1757		}
1758
1759	+	/**
1760	+	* A CyclicBarrier that uses timed await and fails with
1761	+	* AssertionFailedErrors instead of throwing checked exceptions.
1762	+	*/
1763	+	public static class CheckedBarrier extends CyclicBarrier {
1764	+	public CheckedBarrier(int parties) { super(parties); }
1765	+
1766	+	public int await() {
1767	+	try {
1768	+	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1769	+	} catch (TimeoutException timedOut) {
1770	+	throw new AssertionFailedError("timed out");
1771	+	} catch (Exception fail) {
1772	+	AssertionFailedError afe =
1773	+	new AssertionFailedError("Unexpected exception: " + fail);
1774	+	afe.initCause(fail);
1775	+	throw afe;
1776	+	}
1777	+	}
1778	+	}
1779	+
1780	+	void checkEmpty(BlockingQueue q) {
1781	+	try {
1782	+	assertTrue(q.isEmpty());
1783	+	assertEquals(0, q.size());
1784	+	assertNull(q.peek());
1785	+	assertNull(q.poll());
1786	+	assertNull(q.poll(0, MILLISECONDS));
1787	+	assertEquals(q.toString(), "[]");
1788	+	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1789	+	assertFalse(q.iterator().hasNext());
1790	+	try {
1791	+	q.element();
1792	+	shouldThrow();
1793	+	} catch (NoSuchElementException success) {}
1794	+	try {
1795	+	q.iterator().next();
1796	+	shouldThrow();
1797	+	} catch (NoSuchElementException success) {}
1798	+	try {
1799	+	q.remove();
1800	+	shouldThrow();
1801	+	} catch (NoSuchElementException success) {}
1802	+	} catch (InterruptedException fail) { threadUnexpectedException(fail); }
1803	+	}
1804	+
1805	+	void assertSerialEquals(Object x, Object y) {
1806	+	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1807	+	}
1808	+
1809	+	void assertNotSerialEquals(Object x, Object y) {
1810	+	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1811	+	}
1812	+
1813	+	byte[] serialBytes(Object o) {
1814	+	try {
1815	+	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1816	+	ObjectOutputStream oos = new ObjectOutputStream(bos);
1817	+	oos.writeObject(o);
1818	+	oos.flush();
1819	+	oos.close();
1820	+	return bos.toByteArray();
1821	+	} catch (Throwable fail) {
1822	+	threadUnexpectedException(fail);
1823	+	return new byte[0];
1824	+	}
1825	+	}
1826	+
1827	+	@SuppressWarnings("unchecked")
1828	+	<T> T serialClone(T o) {
1829	+	try {
1830	+	ObjectInputStream ois = new ObjectInputStream
1831	+	(new ByteArrayInputStream(serialBytes(o)));
1832	+	T clone = (T) ois.readObject();
1833	+	assertSame(o.getClass(), clone.getClass());
1834	+	return clone;
1835	+	} catch (Throwable fail) {
1836	+	threadUnexpectedException(fail);
1837	+	return null;
1838	+	}
1839	+	}
1840	+
1841	+	public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1842	+	Runnable... throwingActions) {
1843	+	for (Runnable throwingAction : throwingActions) {
1844	+	boolean threw = false;
1845	+	try { throwingAction.run(); }
1846	+	catch (Throwable t) {
1847	+	threw = true;
1848	+	if (!expectedExceptionClass.isInstance(t)) {
1849	+	AssertionFailedError afe =
1850	+	new AssertionFailedError
1851	+	("Expected " + expectedExceptionClass.getName() +
1852	+	", got " + t.getClass().getName());
1853	+	afe.initCause(t);
1854	+	threadUnexpectedException(afe);
1855	+	}
1856	+	}
1857	+	if (!threw)
1858	+	shouldThrow(expectedExceptionClass.getName());
1859	+	}
1860	+	}
1861	+
1862	+	public void assertIteratorExhausted(Iterator<?> it) {
1863	+	try {
1864	+	it.next();
1865	+	shouldThrow();
1866	+	} catch (NoSuchElementException success) {}
1867	+	assertFalse(it.hasNext());
1868	+	}
1869	+
1870	+	public <T> Callable<T> callableThrowing(final Exception ex) {
1871	+	return new Callable<T>() { public T call() throws Exception { throw ex; }};
1872	+	}
1873	+
1874	+	public Runnable runnableThrowing(final RuntimeException ex) {
1875	+	return new Runnable() { public void run() { throw ex; }};
1876	+	}
1877	+
1878	+	/** A reusable thread pool to be shared by tests. */
1879	+	static final ExecutorService cachedThreadPool =
1880	+	new ThreadPoolExecutor(0, Integer.MAX_VALUE,
1881	+	1000L, MILLISECONDS,
1882	+	new SynchronousQueue<Runnable>());
1883	+
1884	+	static <T> void shuffle(T[] array) {
1885	+	Collections.shuffle(Arrays.asList(array), ThreadLocalRandom.current());
1886	+	}
1887		}

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