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Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.58 by jsr166, Wed Oct 6 02:11:57 2010 UTC vs.
Revision 1.211 by jsr166, Mon Nov 14 23:52:22 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.Collection;
45	+	import java.util.Collections;
46	+	import java.util.Date;
47	+	import java.util.Enumeration;
48	+	import java.util.Iterator;
49	+	import java.util.List;
50	+	import java.util.NoSuchElementException;
51	+	import java.util.PropertyPermission;
52	+	import java.util.concurrent.BlockingQueue;
53	+	import java.util.concurrent.Callable;
54	+	import java.util.concurrent.CountDownLatch;
55	+	import java.util.concurrent.CyclicBarrier;
56	+	import java.util.concurrent.ExecutionException;
57	+	import java.util.concurrent.Executors;
58	+	import java.util.concurrent.ExecutorService;
59	+	import java.util.concurrent.ForkJoinPool;
60	+	import java.util.concurrent.Future;
61	+	import java.util.concurrent.RecursiveAction;
62	+	import java.util.concurrent.RecursiveTask;
63	+	import java.util.concurrent.RejectedExecutionHandler;
64	+	import java.util.concurrent.Semaphore;
65	+	import java.util.concurrent.SynchronousQueue;
66	+	import java.util.concurrent.ThreadFactory;
67	+	import java.util.concurrent.ThreadLocalRandom;
68	+	import java.util.concurrent.ThreadPoolExecutor;
69	+	import java.util.concurrent.TimeoutException;
70	+	import java.util.concurrent.atomic.AtomicBoolean;
71	+	import java.util.concurrent.atomic.AtomicReference;
72	+	import java.util.regex.Matcher;
73	+	import java.util.regex.Pattern;
74	+
75	+	import junit.framework.AssertionFailedError;
76	+	import junit.framework.Test;
77	+	import junit.framework.TestCase;
78	+	import junit.framework.TestResult;
79	+	import junit.framework.TestSuite;
80
81		/**
82		* Base class for JSR166 Junit TCK tests.  Defines some constants,
#	Line 29 | Line 88 | import java.security.SecurityPermission;
88		*
89		* <ol>
90		*
91	<	* <li> All assertions in code running in generated threads must use
91	>	* <li>All assertions in code running in generated threads must use
92		* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link
93		* #threadAssertEquals}, or {@link #threadAssertNull}, (not
94		* {@code fail}, {@code assertTrue}, etc.) It is OK (but not
95		* particularly recommended) for other code to use these forms too.
96		* Only the most typically used JUnit assertion methods are defined
97	<	* this way, but enough to live with.</li>
97	>	* this way, but enough to live with.
98		*
99	<	* <li> If you override {@link #setUp} or {@link #tearDown}, make sure
99	>	* <li>If you override {@link #setUp} or {@link #tearDown}, make sure
100		* to invoke {@code super.setUp} and {@code super.tearDown} within
101		* them. These methods are used to clear and check for thread
102	<	* assertion failures.</li>
102	>	* assertion failures.
103		*
104		* <li>All delays and timeouts must use one of the constants {@code
105		* SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS},
#	Line 51 | Line 110 | import java.security.SecurityPermission;
110		* is always discriminable as larger than SHORT and smaller than
111		* MEDIUM.  And so on. These constants are set to conservative values,
112		* but even so, if there is ever any doubt, they can all be increased
113	<	* in one spot to rerun tests on slower platforms.</li>
113	>	* in one spot to rerun tests on slower platforms.
114		*
115	<	* <li> All threads generated must be joined inside each test case
115	>	* <li>All threads generated must be joined inside each test case
116		* method (or {@code fail} to do so) before returning from the
117		* method. The {@code joinPool} method can be used to do this when
118	<	* using Executors.</li>
118	>	* using Executors.
119		*
120		* </ol>
121		*
122	<	* <p> <b>Other notes</b>
122	>	* <p><b>Other notes</b>
123		* <ul>
124		*
125	<	* <li> Usually, there is one testcase method per JSR166 method
125	>	* <li>Usually, there is one testcase method per JSR166 method
126		* covering "normal" operation, and then as many exception-testing
127		* methods as there are exceptions the method can throw. Sometimes
128		* there are multiple tests per JSR166 method when the different
129		* "normal" behaviors differ significantly. And sometimes testcases
130	<	* cover multiple methods when they cannot be tested in
72	<	* isolation.</li>
130	>	* cover multiple methods when they cannot be tested in isolation.
131		*
132	<	* <li> The documentation style for testcases is to provide as javadoc
132	>	* <li>The documentation style for testcases is to provide as javadoc
133		* a simple sentence or two describing the property that the testcase
134		* method purports to test. The javadocs do not say anything about how
135	<	* the property is tested. To find out, read the code.</li>
135	>	* the property is tested. To find out, read the code.
136		*
137	<	* <li> These tests are "conformance tests", and do not attempt to
137	>	* <li>These tests are "conformance tests", and do not attempt to
138		* test throughput, latency, scalability or other performance factors
139		* (see the separate "jtreg" tests for a set intended to check these
140		* for the most central aspects of functionality.) So, most tests use
141		* the smallest sensible numbers of threads, collection sizes, etc
142	<	* needed to check basic conformance.</li>
142	>	* needed to check basic conformance.
143		*
144		* <li>The test classes currently do not declare inclusion in
145		* any particular package to simplify things for people integrating
146	<	* them in TCK test suites.</li>
146	>	* them in TCK test suites.
147		*
148	<	* <li> As a convenience, the {@code main} of this class (JSR166TestCase)
149	<	* runs all JSR166 unit tests.</li>
148	>	* <li>As a convenience, the {@code main} of this class (JSR166TestCase)
149	>	* runs all JSR166 unit tests.
150		*
151		* </ul>
152		*/
#	Line 96 | Line 154 | public class JSR166TestCase extends Test
154		private static final boolean useSecurityManager =
155		Boolean.getBoolean("jsr166.useSecurityManager");
156
157	+	protected static final boolean expensiveTests =
158	+	Boolean.getBoolean("jsr166.expensiveTests");
159	+
160	+	/**
161	+	* If true, also run tests that are not part of the official tck
162	+	* because they test unspecified implementation details.
163	+	*/
164	+	protected static final boolean testImplementationDetails =
165	+	Boolean.getBoolean("jsr166.testImplementationDetails");
166	+
167	+	/**
168	+	* If true, report on stdout all "slow" tests, that is, ones that
169	+	* take more than profileThreshold milliseconds to execute.
170	+	*/
171	+	private static final boolean profileTests =
172	+	Boolean.getBoolean("jsr166.profileTests");
173	+
174	+	/**
175	+	* The number of milliseconds that tests are permitted for
176	+	* execution without being reported, when profileTests is set.
177	+	*/
178	+	private static final long profileThreshold =
179	+	Long.getLong("jsr166.profileThreshold", 100);
180	+
181	+	/**
182	+	* The number of repetitions per test (for tickling rare bugs).
183	+	*/
184	+	private static final int runsPerTest =
185	+	Integer.getInteger("jsr166.runsPerTest", 1);
186	+
187	+	/**
188	+	* The number of repetitions of the test suite (for finding leaks?).
189	+	*/
190	+	private static final int suiteRuns =
191	+	Integer.getInteger("jsr166.suiteRuns", 1);
192	+
193		/**
194	<	* Runs all JSR166 unit tests using junit.textui.TestRunner
194	>	* Returns the value of the system property, or NaN if not defined.
195	>	*/
196	>	private static float systemPropertyValue(String name) {
197	>	String floatString = System.getProperty(name);
198	>	if (floatString == null)
199	>	return Float.NaN;
200	>	try {
201	>	return Float.parseFloat(floatString);
202	>	} catch (NumberFormatException ex) {
203	>	throw new IllegalArgumentException(
204	>	String.format("Bad float value in system property %s=%s",
205	>	name, floatString));
206	>	}
207	>	}
208	>
209	>	/**
210	>	* The scaling factor to apply to standard delays used in tests.
211	>	* May be initialized from any of:
212	>	* - the "jsr166.delay.factor" system property
213	>	* - the "test.timeout.factor" system property (as used by jtreg)
214	>	*   See: http://openjdk.java.net/jtreg/tag-spec.html
215	>	* - hard-coded fuzz factor when using a known slowpoke VM
216	>	*/
217	>	private static final float delayFactor = delayFactor();
218	>
219	>	private static float delayFactor() {
220	>	float x;
221	>	if (!Float.isNaN(x = systemPropertyValue("jsr166.delay.factor")))
222	>	return x;
223	>	if (!Float.isNaN(x = systemPropertyValue("test.timeout.factor")))
224	>	return x;
225	>	String prop = System.getProperty("java.vm.version");
226	>	if (prop != null && prop.matches(".*debug.*"))
227	>	return 4.0f; // How much slower is fastdebug than product?!
228	>	return 1.0f;
229	>	}
230	>
231	>	public JSR166TestCase() { super(); }
232	>	public JSR166TestCase(String name) { super(name); }
233	>
234	>	/**
235	>	* A filter for tests to run, matching strings of the form
236	>	* methodName(className), e.g. "testInvokeAll5(ForkJoinPoolTest)"
237	>	* Usefully combined with jsr166.runsPerTest.
238	>	*/
239	>	private static final Pattern methodFilter = methodFilter();
240	>
241	>	private static Pattern methodFilter() {
242	>	String regex = System.getProperty("jsr166.methodFilter");
243	>	return (regex == null) ? null : Pattern.compile(regex);
244	>	}
245	>
246	>	// Instrumentation to debug very rare, but very annoying hung test runs.
247	>	static volatile TestCase currentTestCase;
248	>	// static volatile int currentRun = 0;
249	>	static {
250	>	Runnable checkForWedgedTest = new Runnable() { public void run() {
251	>	// Avoid spurious reports with enormous runsPerTest.
252	>	// A single test case run should never take more than 1 second.
253	>	// But let's cap it at the high end too ...
254	>	final int timeoutMinutes =
255	>	Math.min(15, Math.max(runsPerTest / 60, 1));
256	>	for (TestCase lastTestCase = currentTestCase;;) {
257	>	try { MINUTES.sleep(timeoutMinutes); }
258	>	catch (InterruptedException unexpected) { break; }
259	>	if (lastTestCase == currentTestCase) {
260	>	System.err.printf(
261	>	"Looks like we're stuck running test: %s%n",
262	>	lastTestCase);
263	>	//                     System.err.printf(
264	>	//                         "Looks like we're stuck running test: %s (%d/%d)%n",
265	>	//                         lastTestCase, currentRun, runsPerTest);
266	>	//                     System.err.println("availableProcessors=" +
267	>	//                         Runtime.getRuntime().availableProcessors());
268	>	//                     System.err.printf("cpu model = %s%n", cpuModel());
269	>	dumpTestThreads();
270	>	// one stack dump is probably enough; more would be spam
271	>	break;
272	>	}
273	>	lastTestCase = currentTestCase;
274	>	}}};
275	>	Thread thread = new Thread(checkForWedgedTest, "checkForWedgedTest");
276	>	thread.setDaemon(true);
277	>	thread.start();
278	>	}
279	>
280	>	//     public static String cpuModel() {
281	>	//         try {
282	>	//             Matcher matcher = Pattern.compile("model name\\s*: (.*)")
283	>	//                 .matcher(new String(
284	>	//                      Files.readAllBytes(Paths.get("/proc/cpuinfo")), "UTF-8"));
285	>	//             matcher.find();
286	>	//             return matcher.group(1);
287	>	//         } catch (Exception ex) { return null; }
288	>	//     }
289	>
290	>	public void runBare() throws Throwable {
291	>	currentTestCase = this;
292	>	if (methodFilter == null
293	>	|| methodFilter.matcher(toString()).find())
294	>	super.runBare();
295	>	}
296	>
297	>	protected void runTest() throws Throwable {
298	>	for (int i = 0; i < runsPerTest; i++) {
299	>	// currentRun = i;
300	>	if (profileTests)
301	>	runTestProfiled();
302	>	else
303	>	super.runTest();
304	>	}
305	>	}
306	>
307	>	protected void runTestProfiled() throws Throwable {
308	>	for (int i = 0; i < 2; i++) {
309	>	long startTime = System.nanoTime();
310	>	super.runTest();
311	>	long elapsedMillis = millisElapsedSince(startTime);
312	>	if (elapsedMillis < profileThreshold)
313	>	break;
314	>	// Never report first run of any test; treat it as a
315	>	// warmup run, notably to trigger all needed classloading,
316	>	if (i > 0)
317	>	System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
318	>	}
319	>	}
320	>
321	>	/**
322	>	* Runs all JSR166 unit tests using junit.textui.TestRunner.
323		*/
324		public static void main(String[] args) {
325	+	main(suite(), args);
326	+	}
327	+
328	+	static class PithyResultPrinter extends junit.textui.ResultPrinter {
329	+	PithyResultPrinter(java.io.PrintStream writer) { super(writer); }
330	+	long runTime;
331	+	public void startTest(Test test) {}
332	+	protected void printHeader(long runTime) {
333	+	this.runTime = runTime; // defer printing for later
334	+	}
335	+	protected void printFooter(TestResult result) {
336	+	if (result.wasSuccessful()) {
337	+	getWriter().println("OK (" + result.runCount() + " tests)"
338	+	+ "  Time: " + elapsedTimeAsString(runTime));
339	+	} else {
340	+	getWriter().println("Time: " + elapsedTimeAsString(runTime));
341	+	super.printFooter(result);
342	+	}
343	+	}
344	+	}
345	+
346	+	/**
347	+	* Returns a TestRunner that doesn't bother with unnecessary
348	+	* fluff, like printing a "." for each test case.
349	+	*/
350	+	static junit.textui.TestRunner newPithyTestRunner() {
351	+	junit.textui.TestRunner runner = new junit.textui.TestRunner();
352	+	runner.setPrinter(new PithyResultPrinter(System.out));
353	+	return runner;
354	+	}
355	+
356	+	/**
357	+	* Runs all unit tests in the given test suite.
358	+	* Actual behavior influenced by jsr166.* system properties.
359	+	*/
360	+	static void main(Test suite, String[] args) {
361		if (useSecurityManager) {
362		System.err.println("Setting a permissive security manager");
363		Policy.setPolicy(permissivePolicy());
364		System.setSecurityManager(new SecurityManager());
365		}
366	<	int iters = (args.length == 0) ? 1 : Integer.parseInt(args[0]);
367	<
368	<	Test s = suite();
369	<	for (int i = 0; i < iters; ++i) {
112	<	junit.textui.TestRunner.run(s);
366	>	for (int i = 0; i < suiteRuns; i++) {
367	>	TestResult result = newPithyTestRunner().doRun(suite);
368	>	if (!result.wasSuccessful())
369	>	System.exit(1);
370		System.gc();
371		System.runFinalization();
372		}
373	<	System.exit(0);
373	>	}
374	>
375	>	public static TestSuite newTestSuite(Object... suiteOrClasses) {
376	>	TestSuite suite = new TestSuite();
377	>	for (Object suiteOrClass : suiteOrClasses) {
378	>	if (suiteOrClass instanceof TestSuite)
379	>	suite.addTest((TestSuite) suiteOrClass);
380	>	else if (suiteOrClass instanceof Class)
381	>	suite.addTest(new TestSuite((Class<?>) suiteOrClass));
382	>	else
383	>	throw new ClassCastException("not a test suite or class");
384	>	}
385	>	return suite;
386	>	}
387	>
388	>	public static void addNamedTestClasses(TestSuite suite,
389	>	String... testClassNames) {
390	>	for (String testClassName : testClassNames) {
391	>	try {
392	>	Class<?> testClass = Class.forName(testClassName);
393	>	Method m = testClass.getDeclaredMethod("suite",
394	>	new Class<?>[0]);
395	>	suite.addTest(newTestSuite((Test)m.invoke(null)));
396	>	} catch (Exception e) {
397	>	throw new Error("Missing test class", e);
398	>	}
399	>	}
400	>	}
401	>
402	>	public static final double JAVA_CLASS_VERSION;
403	>	public static final String JAVA_SPECIFICATION_VERSION;
404	>	static {
405	>	try {
406	>	JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
407	>	new java.security.PrivilegedAction<Double>() {
408	>	public Double run() {
409	>	return Double.valueOf(System.getProperty("java.class.version"));}});
410	>	JAVA_SPECIFICATION_VERSION = java.security.AccessController.doPrivileged(
411	>	new java.security.PrivilegedAction<String>() {
412	>	public String run() {
413	>	return System.getProperty("java.specification.version");}});
414	>	} catch (Throwable t) {
415	>	throw new Error(t);
416	>	}
417	>	}
418	>
419	>	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
420	>	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
421	>	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
422	>	public static boolean atLeastJava9() {
423	>	return JAVA_CLASS_VERSION >= 53.0
424	>	// As of 2015-09, java9 still uses 52.0 class file version
425	>	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?(9|[0-9][0-9])$");
426	>	}
427	>	public static boolean atLeastJava10() {
428	>	return JAVA_CLASS_VERSION >= 54.0
429	>	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?[0-9][0-9]$");
430		}
431
432		/**
433	<	* Collects all JSR166 unit tests as one suite
433	>	* Collects all JSR166 unit tests as one suite.
434		*/
435		public static Test suite() {
436	<	TestSuite suite = new TestSuite("JSR166 Unit Tests");
437	<
438	<	suite.addTest(ForkJoinPoolTest.suite());
439	<	suite.addTest(ForkJoinTaskTest.suite());
440	<	suite.addTest(RecursiveActionTest.suite());
441	<	suite.addTest(RecursiveTaskTest.suite());
442	<	suite.addTest(LinkedTransferQueueTest.suite());
443	<	suite.addTest(PhaserTest.suite());
444	<	suite.addTest(ThreadLocalRandomTest.suite());
445	<	suite.addTest(AbstractExecutorServiceTest.suite());
446	<	suite.addTest(AbstractQueueTest.suite());
447	<	suite.addTest(AbstractQueuedSynchronizerTest.suite());
448	<	suite.addTest(AbstractQueuedLongSynchronizerTest.suite());
449	<	suite.addTest(ArrayBlockingQueueTest.suite());
450	<	suite.addTest(ArrayDequeTest.suite());
451	<	suite.addTest(AtomicBooleanTest.suite());
452	<	suite.addTest(AtomicIntegerArrayTest.suite());
453	<	suite.addTest(AtomicIntegerFieldUpdaterTest.suite());
454	<	suite.addTest(AtomicIntegerTest.suite());
455	<	suite.addTest(AtomicLongArrayTest.suite());
456	<	suite.addTest(AtomicLongFieldUpdaterTest.suite());
457	<	suite.addTest(AtomicLongTest.suite());
458	<	suite.addTest(AtomicMarkableReferenceTest.suite());
459	<	suite.addTest(AtomicReferenceArrayTest.suite());
460	<	suite.addTest(AtomicReferenceFieldUpdaterTest.suite());
461	<	suite.addTest(AtomicReferenceTest.suite());
462	<	suite.addTest(AtomicStampedReferenceTest.suite());
463	<	suite.addTest(ConcurrentHashMapTest.suite());
464	<	suite.addTest(ConcurrentLinkedDequeTest.suite());
465	<	suite.addTest(ConcurrentLinkedQueueTest.suite());
466	<	suite.addTest(ConcurrentSkipListMapTest.suite());
467	<	suite.addTest(ConcurrentSkipListSubMapTest.suite());
468	<	suite.addTest(ConcurrentSkipListSetTest.suite());
469	<	suite.addTest(ConcurrentSkipListSubSetTest.suite());
470	<	suite.addTest(CopyOnWriteArrayListTest.suite());
471	<	suite.addTest(CopyOnWriteArraySetTest.suite());
472	<	suite.addTest(CountDownLatchTest.suite());
473	<	suite.addTest(CyclicBarrierTest.suite());
474	<	suite.addTest(DelayQueueTest.suite());
475	<	suite.addTest(EntryTest.suite());
476	<	suite.addTest(ExchangerTest.suite());
477	<	suite.addTest(ExecutorsTest.suite());
478	<	suite.addTest(ExecutorCompletionServiceTest.suite());
479	<	suite.addTest(FutureTaskTest.suite());
480	<	suite.addTest(LinkedBlockingDequeTest.suite());
481	<	suite.addTest(LinkedBlockingQueueTest.suite());
482	<	suite.addTest(LinkedListTest.suite());
483	<	suite.addTest(LockSupportTest.suite());
484	<	suite.addTest(PriorityBlockingQueueTest.suite());
485	<	suite.addTest(PriorityQueueTest.suite());
486	<	suite.addTest(ReentrantLockTest.suite());
487	<	suite.addTest(ReentrantReadWriteLockTest.suite());
488	<	suite.addTest(ScheduledExecutorTest.suite());
489	<	suite.addTest(ScheduledExecutorSubclassTest.suite());
490	<	suite.addTest(SemaphoreTest.suite());
491	<	suite.addTest(SynchronousQueueTest.suite());
492	<	suite.addTest(SystemTest.suite());
493	<	suite.addTest(ThreadLocalTest.suite());
494	<	suite.addTest(ThreadPoolExecutorTest.suite());
495	<	suite.addTest(ThreadPoolExecutorSubclassTest.suite());
496	<	suite.addTest(ThreadTest.suite());
497	<	suite.addTest(TimeUnitTest.suite());
498	<	suite.addTest(TreeMapTest.suite());
499	<	suite.addTest(TreeSetTest.suite());
500	<	suite.addTest(TreeSubMapTest.suite());
501	<	suite.addTest(TreeSubSetTest.suite());
436	>	// Java7+ test classes
437	>	TestSuite suite = newTestSuite(
438	>	ForkJoinPoolTest.suite(),
439	>	ForkJoinTaskTest.suite(),
440	>	RecursiveActionTest.suite(),
441	>	RecursiveTaskTest.suite(),
442	>	LinkedTransferQueueTest.suite(),
443	>	PhaserTest.suite(),
444	>	ThreadLocalRandomTest.suite(),
445	>	AbstractExecutorServiceTest.suite(),
446	>	AbstractQueueTest.suite(),
447	>	AbstractQueuedSynchronizerTest.suite(),
448	>	AbstractQueuedLongSynchronizerTest.suite(),
449	>	ArrayBlockingQueueTest.suite(),
450	>	ArrayDequeTest.suite(),
451	>	ArrayListTest.suite(),
452	>	AtomicBooleanTest.suite(),
453	>	AtomicIntegerArrayTest.suite(),
454	>	AtomicIntegerFieldUpdaterTest.suite(),
455	>	AtomicIntegerTest.suite(),
456	>	AtomicLongArrayTest.suite(),
457	>	AtomicLongFieldUpdaterTest.suite(),
458	>	AtomicLongTest.suite(),
459	>	AtomicMarkableReferenceTest.suite(),
460	>	AtomicReferenceArrayTest.suite(),
461	>	AtomicReferenceFieldUpdaterTest.suite(),
462	>	AtomicReferenceTest.suite(),
463	>	AtomicStampedReferenceTest.suite(),
464	>	ConcurrentHashMapTest.suite(),
465	>	ConcurrentLinkedDequeTest.suite(),
466	>	ConcurrentLinkedQueueTest.suite(),
467	>	ConcurrentSkipListMapTest.suite(),
468	>	ConcurrentSkipListSubMapTest.suite(),
469	>	ConcurrentSkipListSetTest.suite(),
470	>	ConcurrentSkipListSubSetTest.suite(),
471	>	CopyOnWriteArrayListTest.suite(),
472	>	CopyOnWriteArraySetTest.suite(),
473	>	CountDownLatchTest.suite(),
474	>	CountedCompleterTest.suite(),
475	>	CyclicBarrierTest.suite(),
476	>	DelayQueueTest.suite(),
477	>	EntryTest.suite(),
478	>	ExchangerTest.suite(),
479	>	ExecutorsTest.suite(),
480	>	ExecutorCompletionServiceTest.suite(),
481	>	FutureTaskTest.suite(),
482	>	LinkedBlockingDequeTest.suite(),
483	>	LinkedBlockingQueueTest.suite(),
484	>	LinkedListTest.suite(),
485	>	LockSupportTest.suite(),
486	>	PriorityBlockingQueueTest.suite(),
487	>	PriorityQueueTest.suite(),
488	>	ReentrantLockTest.suite(),
489	>	ReentrantReadWriteLockTest.suite(),
490	>	ScheduledExecutorTest.suite(),
491	>	ScheduledExecutorSubclassTest.suite(),
492	>	SemaphoreTest.suite(),
493	>	SynchronousQueueTest.suite(),
494	>	SystemTest.suite(),
495	>	ThreadLocalTest.suite(),
496	>	ThreadPoolExecutorTest.suite(),
497	>	ThreadPoolExecutorSubclassTest.suite(),
498	>	ThreadTest.suite(),
499	>	TimeUnitTest.suite(),
500	>	TreeMapTest.suite(),
501	>	TreeSetTest.suite(),
502	>	TreeSubMapTest.suite(),
503	>	TreeSubSetTest.suite(),
504	>	VectorTest.suite());
505	>
506	>	// Java8+ test classes
507	>	if (atLeastJava8()) {
508	>	String[] java8TestClassNames = {
509	>	"ArrayDeque8Test",
510	>	"Atomic8Test",
511	>	"CompletableFutureTest",
512	>	"ConcurrentHashMap8Test",
513	>	"CountedCompleter8Test",
514	>	"DoubleAccumulatorTest",
515	>	"DoubleAdderTest",
516	>	"ForkJoinPool8Test",
517	>	"ForkJoinTask8Test",
518	>	"LongAccumulatorTest",
519	>	"LongAdderTest",
520	>	"SplittableRandomTest",
521	>	"StampedLockTest",
522	>	"SubmissionPublisherTest",
523	>	"ThreadLocalRandom8Test",
524	>	"TimeUnit8Test",
525	>	};
526	>	addNamedTestClasses(suite, java8TestClassNames);
527	>	}
528	>
529	>	// Java9+ test classes
530	>	if (atLeastJava9()) {
531	>	String[] java9TestClassNames = {
532	>	"AtomicBoolean9Test",
533	>	"AtomicInteger9Test",
534	>	"AtomicIntegerArray9Test",
535	>	"AtomicLong9Test",
536	>	"AtomicLongArray9Test",
537	>	"AtomicReference9Test",
538	>	"AtomicReferenceArray9Test",
539	>	"ExecutorCompletionService9Test",
540	>	};
541	>	addNamedTestClasses(suite, java9TestClassNames);
542	>	}
543
544		return suite;
545		}
546
547	+	/** Returns list of junit-style test method names in given class. */
548	+	public static ArrayList<String> testMethodNames(Class<?> testClass) {
549	+	Method[] methods = testClass.getDeclaredMethods();
550	+	ArrayList<String> names = new ArrayList<String>(methods.length);
551	+	for (Method method : methods) {
552	+	if (method.getName().startsWith("test")
553	+	&& Modifier.isPublic(method.getModifiers())
554	+	// method.getParameterCount() requires jdk8+
555	+	&& method.getParameterTypes().length == 0) {
556	+	names.add(method.getName());
557	+	}
558	+	}
559	+	return names;
560	+	}
561	+
562	+	/**
563	+	* Returns junit-style testSuite for the given test class, but
564	+	* parameterized by passing extra data to each test.
565	+	*/
566	+	public static <ExtraData> Test parameterizedTestSuite
567	+	(Class<? extends JSR166TestCase> testClass,
568	+	Class<ExtraData> dataClass,
569	+	ExtraData data) {
570	+	try {
571	+	TestSuite suite = new TestSuite();
572	+	Constructor c =
573	+	testClass.getDeclaredConstructor(dataClass, String.class);
574	+	for (String methodName : testMethodNames(testClass))
575	+	suite.addTest((Test) c.newInstance(data, methodName));
576	+	return suite;
577	+	} catch (Exception e) {
578	+	throw new Error(e);
579	+	}
580	+	}
581	+
582	+	/**
583	+	* Returns junit-style testSuite for the jdk8 extension of the
584	+	* given test class, but parameterized by passing extra data to
585	+	* each test.  Uses reflection to allow compilation in jdk7.
586	+	*/
587	+	public static <ExtraData> Test jdk8ParameterizedTestSuite
588	+	(Class<? extends JSR166TestCase> testClass,
589	+	Class<ExtraData> dataClass,
590	+	ExtraData data) {
591	+	if (atLeastJava8()) {
592	+	String name = testClass.getName();
593	+	String name8 = name.replaceAll("Test$", "8Test");
594	+	if (name.equals(name8)) throw new Error(name);
595	+	try {
596	+	return (Test)
597	+	Class.forName(name8)
598	+	.getMethod("testSuite", new Class[] { dataClass })
599	+	.invoke(null, data);
600	+	} catch (Exception e) {
601	+	throw new Error(e);
602	+	}
603	+	} else {
604	+	return new TestSuite();
605	+	}
606	+	}
607	+
608	+	// Delays for timing-dependent tests, in milliseconds.
609
610		public static long SHORT_DELAY_MS;
611		public static long SMALL_DELAY_MS;
612		public static long MEDIUM_DELAY_MS;
613		public static long LONG_DELAY_MS;
614
199	–
615		/**
616	<	* Returns the shortest timed delay. This could
617	<	* be reimplemented to use for example a Property.
616	>	* Returns the shortest timed delay. This can be scaled up for
617	>	* slow machines using the jsr166.delay.factor system property,
618	>	* or via jtreg's -timeoutFactor: flag.
619	>	* http://openjdk.java.net/jtreg/command-help.html
620		*/
621		protected long getShortDelay() {
622	<	return 50;
622	>	return (long) (50 * delayFactor);
623		}
624
208	–
625		/**
626		* Sets delays as multiples of SHORT_DELAY.
627		*/
#	Line 213 | Line 629 | public class JSR166TestCase extends Test
629		SHORT_DELAY_MS = getShortDelay();
630		SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
631		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
632	<	LONG_DELAY_MS   = SHORT_DELAY_MS * 50;
632	>	LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
633	>	}
634	>
635	>	/**
636	>	* Returns a timeout in milliseconds to be used in tests that
637	>	* verify that operations block or time out.
638	>	*/
639	>	long timeoutMillis() {
640	>	return SHORT_DELAY_MS / 4;
641	>	}
642	>
643	>	/**
644	>	* Returns a new Date instance representing a time at least
645	>	* delayMillis milliseconds in the future.
646	>	*/
647	>	Date delayedDate(long delayMillis) {
648	>	// Add 1 because currentTimeMillis is known to round into the past.
649	>	return new Date(System.currentTimeMillis() + delayMillis + 1);
650		}
651
652		/**
#	Line 229 | Line 662 | public class JSR166TestCase extends Test
662		* the same test have no effect.
663		*/
664		public void threadRecordFailure(Throwable t) {
665	+	System.err.println(t);
666	+	dumpTestThreads();
667		threadFailure.compareAndSet(null, t);
668		}
669
#	Line 236 | Line 671 | public class JSR166TestCase extends Test
671		setDelays();
672		}
673
674	+	void tearDownFail(String format, Object... args) {
675	+	String msg = toString() + ": " + String.format(format, args);
676	+	System.err.println(msg);
677	+	dumpTestThreads();
678	+	throw new AssertionFailedError(msg);
679	+	}
680	+
681		/**
682	+	* Extra checks that get done for all test cases.
683	+	*
684		* Triggers test case failure if any thread assertions have failed,
685		* by rethrowing, in the test harness thread, any exception recorded
686		* earlier by threadRecordFailure.
687	+	*
688	+	* Triggers test case failure if interrupt status is set in the main thread.
689		*/
690		public void tearDown() throws Exception {
691	<	Throwable t = threadFailure.get();
691	>	Throwable t = threadFailure.getAndSet(null);
692		if (t != null) {
693		if (t instanceof Error)
694		throw (Error) t;
#	Line 257 | Line 703 | public class JSR166TestCase extends Test
703		throw afe;
704		}
705		}
706	+
707	+	if (Thread.interrupted())
708	+	tearDownFail("interrupt status set in main thread");
709	+
710	+	checkForkJoinPoolThreadLeaks();
711	+	}
712	+
713	+	/**
714	+	* Finds missing PoolCleaners
715	+	*/
716	+	void checkForkJoinPoolThreadLeaks() throws InterruptedException {
717	+	Thread[] survivors = new Thread[7];
718	+	int count = Thread.enumerate(survivors);
719	+	for (int i = 0; i < count; i++) {
720	+	Thread thread = survivors[i];
721	+	String name = thread.getName();
722	+	if (name.startsWith("ForkJoinPool-")) {
723	+	// give thread some time to terminate
724	+	thread.join(LONG_DELAY_MS);
725	+	if (thread.isAlive())
726	+	tearDownFail("Found leaked ForkJoinPool thread thread=%s",
727	+	thread);
728	+	}
729	+	}
730	+
731	+	if (!ForkJoinPool.commonPool()
732	+	.awaitQuiescence(LONG_DELAY_MS, MILLISECONDS))
733	+	tearDownFail("ForkJoin common pool thread stuck");
734		}
735
736		/**
#	Line 269 | Line 743 | public class JSR166TestCase extends Test
743		fail(reason);
744		} catch (AssertionFailedError t) {
745		threadRecordFailure(t);
746	<	fail(reason);
746	>	throw t;
747		}
748		}
749
#	Line 337 | Line 811 | public class JSR166TestCase extends Test
811		public void threadAssertEquals(Object x, Object y) {
812		try {
813		assertEquals(x, y);
814	<	} catch (AssertionFailedError t) {
815	<	threadRecordFailure(t);
816	<	throw t;
817	<	} catch (Throwable t) {
818	<	threadUnexpectedException(t);
814	>	} catch (AssertionFailedError fail) {
815	>	threadRecordFailure(fail);
816	>	throw fail;
817	>	} catch (Throwable fail) {
818	>	threadUnexpectedException(fail);
819		}
820		}
821
#	Line 353 | Line 827 | public class JSR166TestCase extends Test
827		public void threadAssertSame(Object x, Object y) {
828		try {
829		assertSame(x, y);
830	<	} catch (AssertionFailedError t) {
831	<	threadRecordFailure(t);
832	<	throw t;
830	>	} catch (AssertionFailedError fail) {
831	>	threadRecordFailure(fail);
832	>	throw fail;
833		}
834		}
835
#	Line 388 | Line 862 | public class JSR166TestCase extends Test
862		else {
863		AssertionFailedError afe =
864		new AssertionFailedError("unexpected exception: " + t);
865	<	t.initCause(t);
865	>	afe.initCause(t);
866		throw afe;
867		}
868		}
869
870		/**
871	+	* Delays, via Thread.sleep, for the given millisecond delay, but
872	+	* if the sleep is shorter than specified, may re-sleep or yield
873	+	* until time elapses.  Ensures that the given time, as measured
874	+	* by System.nanoTime(), has elapsed.
875	+	*/
876	+	static void delay(long millis) throws InterruptedException {
877	+	long nanos = millis * (1000 * 1000);
878	+	final long wakeupTime = System.nanoTime() + nanos;
879	+	do {
880	+	if (millis > 0L)
881	+	Thread.sleep(millis);
882	+	else // too short to sleep
883	+	Thread.yield();
884	+	nanos = wakeupTime - System.nanoTime();
885	+	millis = nanos / (1000 * 1000);
886	+	} while (nanos >= 0L);
887	+	}
888	+
889	+	/**
890	+	* Allows use of try-with-resources with per-test thread pools.
891	+	*/
892	+	class PoolCleaner implements AutoCloseable {
893	+	private final ExecutorService pool;
894	+	public PoolCleaner(ExecutorService pool) { this.pool = pool; }
895	+	public void close() { joinPool(pool); }
896	+	}
897	+
898	+	/**
899	+	* An extension of PoolCleaner that has an action to release the pool.
900	+	*/
901	+	class PoolCleanerWithReleaser extends PoolCleaner {
902	+	private final Runnable releaser;
903	+	public PoolCleanerWithReleaser(ExecutorService pool, Runnable releaser) {
904	+	super(pool);
905	+	this.releaser = releaser;
906	+	}
907	+	public void close() {
908	+	try {
909	+	releaser.run();
910	+	} finally {
911	+	super.close();
912	+	}
913	+	}
914	+	}
915	+
916	+	PoolCleaner cleaner(ExecutorService pool) {
917	+	return new PoolCleaner(pool);
918	+	}
919	+
920	+	PoolCleaner cleaner(ExecutorService pool, Runnable releaser) {
921	+	return new PoolCleanerWithReleaser(pool, releaser);
922	+	}
923	+
924	+	PoolCleaner cleaner(ExecutorService pool, CountDownLatch latch) {
925	+	return new PoolCleanerWithReleaser(pool, releaser(latch));
926	+	}
927	+
928	+	Runnable releaser(final CountDownLatch latch) {
929	+	return new Runnable() { public void run() {
930	+	do { latch.countDown(); }
931	+	while (latch.getCount() > 0);
932	+	}};
933	+	}
934	+
935	+	PoolCleaner cleaner(ExecutorService pool, AtomicBoolean flag) {
936	+	return new PoolCleanerWithReleaser(pool, releaser(flag));
937	+	}
938	+
939	+	Runnable releaser(final AtomicBoolean flag) {
940	+	return new Runnable() { public void run() { flag.set(true); }};
941	+	}
942	+
943	+	/**
944		* Waits out termination of a thread pool or fails doing so.
945		*/
946	<	public void joinPool(ExecutorService exec) {
946	>	void joinPool(ExecutorService pool) {
947		try {
948	<	exec.shutdown();
949	<	assertTrue("ExecutorService did not terminate in a timely manner",
950	<	exec.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
948	>	pool.shutdown();
949	>	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)) {
950	>	try {
951	>	threadFail("ExecutorService " + pool +
952	>	" did not terminate in a timely manner");
953	>	} finally {
954	>	// last resort, for the benefit of subsequent tests
955	>	pool.shutdownNow();
956	>	pool.awaitTermination(MEDIUM_DELAY_MS, MILLISECONDS);
957	>	}
958	>	}
959		} catch (SecurityException ok) {
960		// Allowed in case test doesn't have privs
961	<	} catch (InterruptedException ie) {
962	<	fail("Unexpected InterruptedException");
961	>	} catch (InterruptedException fail) {
962	>	threadFail("Unexpected InterruptedException");
963		}
964		}
965
966	+	/**
967	+	* Like Runnable, but with the freedom to throw anything.
968	+	* junit folks had the same idea:
969	+	* http://junit.org/junit5/docs/snapshot/api/org/junit/gen5/api/Executable.html
970	+	*/
971	+	interface Action { public void run() throws Throwable; }
972	+
973	+	/**
974	+	* Runs all the given actions in parallel, failing if any fail.
975	+	* Useful for running multiple variants of tests that are
976	+	* necessarily individually slow because they must block.
977	+	*/
978	+	void testInParallel(Action ... actions) {
979	+	ExecutorService pool = Executors.newCachedThreadPool();
980	+	try (PoolCleaner cleaner = cleaner(pool)) {
981	+	ArrayList<Future<?>> futures = new ArrayList<>(actions.length);
982	+	for (final Action action : actions)
983	+	futures.add(pool.submit(new CheckedRunnable() {
984	+	public void realRun() throws Throwable { action.run();}}));
985	+	for (Future<?> future : futures)
986	+	try {
987	+	assertNull(future.get(LONG_DELAY_MS, MILLISECONDS));
988	+	} catch (ExecutionException ex) {
989	+	threadUnexpectedException(ex.getCause());
990	+	} catch (Exception ex) {
991	+	threadUnexpectedException(ex);
992	+	}
993	+	}
994	+	}
995	+
996	+	/**
997	+	* A debugging tool to print stack traces of most threads, as jstack does.
998	+	* Uninteresting threads are filtered out.
999	+	*/
1000	+	static void dumpTestThreads() {
1001	+	SecurityManager sm = System.getSecurityManager();
1002	+	if (sm != null) {
1003	+	try {
1004	+	System.setSecurityManager(null);
1005	+	} catch (SecurityException giveUp) {
1006	+	return;
1007	+	}
1008	+	}
1009	+
1010	+	ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
1011	+	System.err.println("------ stacktrace dump start ------");
1012	+	for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) {
1013	+	final String name = info.getThreadName();
1014	+	String lockName;
1015	+	if ("Signal Dispatcher".equals(name))
1016	+	continue;
1017	+	if ("Reference Handler".equals(name)
1018	+	&& (lockName = info.getLockName()) != null
1019	+	&& lockName.startsWith("java.lang.ref.Reference$Lock"))
1020	+	continue;
1021	+	if ("Finalizer".equals(name)
1022	+	&& (lockName = info.getLockName()) != null
1023	+	&& lockName.startsWith("java.lang.ref.ReferenceQueue$Lock"))
1024	+	continue;
1025	+	if ("checkForWedgedTest".equals(name))
1026	+	continue;
1027	+	System.err.print(info);
1028	+	}
1029	+	System.err.println("------ stacktrace dump end ------");
1030	+
1031	+	if (sm != null) System.setSecurityManager(sm);
1032	+	}
1033	+
1034	+	/**
1035	+	* Checks that thread does not terminate within the default
1036	+	* millisecond delay of {@code timeoutMillis()}.
1037	+	*/
1038	+	void assertThreadStaysAlive(Thread thread) {
1039	+	assertThreadStaysAlive(thread, timeoutMillis());
1040	+	}
1041	+
1042	+	/**
1043	+	* Checks that thread does not terminate within the given millisecond delay.
1044	+	*/
1045	+	void assertThreadStaysAlive(Thread thread, long millis) {
1046	+	try {
1047	+	// No need to optimize the failing case via Thread.join.
1048	+	delay(millis);
1049	+	assertTrue(thread.isAlive());
1050	+	} catch (InterruptedException fail) {
1051	+	threadFail("Unexpected InterruptedException");
1052	+	}
1053	+	}
1054	+
1055	+	/**
1056	+	* Checks that the threads do not terminate within the default
1057	+	* millisecond delay of {@code timeoutMillis()}.
1058	+	*/
1059	+	void assertThreadsStayAlive(Thread... threads) {
1060	+	assertThreadsStayAlive(timeoutMillis(), threads);
1061	+	}
1062	+
1063	+	/**
1064	+	* Checks that the threads do not terminate within the given millisecond delay.
1065	+	*/
1066	+	void assertThreadsStayAlive(long millis, Thread... threads) {
1067	+	try {
1068	+	// No need to optimize the failing case via Thread.join.
1069	+	delay(millis);
1070	+	for (Thread thread : threads)
1071	+	assertTrue(thread.isAlive());
1072	+	} catch (InterruptedException fail) {
1073	+	threadFail("Unexpected InterruptedException");
1074	+	}
1075	+	}
1076	+
1077	+	/**
1078	+	* Checks that future.get times out, with the default timeout of
1079	+	* {@code timeoutMillis()}.
1080	+	*/
1081	+	void assertFutureTimesOut(Future future) {
1082	+	assertFutureTimesOut(future, timeoutMillis());
1083	+	}
1084	+
1085	+	/**
1086	+	* Checks that future.get times out, with the given millisecond timeout.
1087	+	*/
1088	+	void assertFutureTimesOut(Future future, long timeoutMillis) {
1089	+	long startTime = System.nanoTime();
1090	+	try {
1091	+	future.get(timeoutMillis, MILLISECONDS);
1092	+	shouldThrow();
1093	+	} catch (TimeoutException success) {
1094	+	} catch (Exception fail) {
1095	+	threadUnexpectedException(fail);
1096	+	} finally { future.cancel(true); }
1097	+	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
1098	+	}
1099
1100		/**
1101		* Fails with message "should throw exception".
#	Line 448 | Line 1136 | public class JSR166TestCase extends Test
1136		public static final Integer m6  = new Integer(-6);
1137		public static final Integer m10 = new Integer(-10);
1138
451	–
1139		/**
1140		* Runs Runnable r with a security policy that permits precisely
1141		* the specified permissions.  If there is no current security
#	Line 460 | Line 1147 | public class JSR166TestCase extends Test
1147		SecurityManager sm = System.getSecurityManager();
1148		if (sm == null) {
1149		r.run();
1150	+	}
1151	+	runWithSecurityManagerWithPermissions(r, permissions);
1152	+	}
1153	+
1154	+	/**
1155	+	* Runs Runnable r with a security policy that permits precisely
1156	+	* the specified permissions.  If there is no current security
1157	+	* manager, a temporary one is set for the duration of the
1158	+	* Runnable.  We require that any security manager permit
1159	+	* getPolicy/setPolicy.
1160	+	*/
1161	+	public void runWithSecurityManagerWithPermissions(Runnable r,
1162	+	Permission... permissions) {
1163	+	SecurityManager sm = System.getSecurityManager();
1164	+	if (sm == null) {
1165		Policy savedPolicy = Policy.getPolicy();
1166		try {
1167		Policy.setPolicy(permissivePolicy());
1168		System.setSecurityManager(new SecurityManager());
1169	<	runWithPermissions(r, permissions);
1169	>	runWithSecurityManagerWithPermissions(r, permissions);
1170		} finally {
1171		System.setSecurityManager(null);
1172		Policy.setPolicy(savedPolicy);
#	Line 512 | Line 1214 | public class JSR166TestCase extends Test
1214		return perms.implies(p);
1215		}
1216		public void refresh() {}
1217	+	public String toString() {
1218	+	List<Permission> ps = new ArrayList<Permission>();
1219	+	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
1220	+	ps.add(e.nextElement());
1221	+	return "AdjustablePolicy with permissions " + ps;
1222	+	}
1223		}
1224
1225		/**
#	Line 534 | Line 1242 | public class JSR166TestCase extends Test
1242		}
1243
1244		/**
1245	<	* Sleep until the timeout has elapsed, or interrupted.
1246	<	* Does <em>NOT</em> throw InterruptedException.
1245	>	* Sleeps until the given time has elapsed.
1246	>	* Throws AssertionFailedError if interrupted.
1247		*/
1248	<	void sleepTillInterrupted(long timeoutMillis) {
1248	>	static void sleep(long millis) {
1249		try {
1250	<	Thread.sleep(timeoutMillis);
1251	<	} catch (InterruptedException wakeup) {}
1250	>	delay(millis);
1251	>	} catch (InterruptedException fail) {
1252	>	AssertionFailedError afe =
1253	>	new AssertionFailedError("Unexpected InterruptedException");
1254	>	afe.initCause(fail);
1255	>	throw afe;
1256	>	}
1257	>	}
1258	>
1259	>	/**
1260	>	* Spin-waits up to the specified number of milliseconds for the given
1261	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1262	>	*/
1263	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1264	>	long startTime = 0L;
1265	>	for (;;) {
1266	>	Thread.State s = thread.getState();
1267	>	if (s == Thread.State.BLOCKED ||
1268	>	s == Thread.State.WAITING ||
1269	>	s == Thread.State.TIMED_WAITING)
1270	>	return;
1271	>	else if (s == Thread.State.TERMINATED)
1272	>	fail("Unexpected thread termination");
1273	>	else if (startTime == 0L)
1274	>	startTime = System.nanoTime();
1275	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
1276	>	threadAssertTrue(thread.isAlive());
1277	>	return;
1278	>	}
1279	>	Thread.yield();
1280	>	}
1281	>	}
1282	>
1283	>	/**
1284	>	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
1285	>	* state: BLOCKED, WAITING, or TIMED_WAITING.
1286	>	*/
1287	>	void waitForThreadToEnterWaitState(Thread thread) {
1288	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
1289	>	}
1290	>
1291	>	/**
1292	>	* Returns the number of milliseconds since time given by
1293	>	* startNanoTime, which must have been previously returned from a
1294	>	* call to {@link System#nanoTime()}.
1295	>	*/
1296	>	static long millisElapsedSince(long startNanoTime) {
1297	>	return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
1298	>	}
1299	>
1300	>	//     void assertTerminatesPromptly(long timeoutMillis, Runnable r) {
1301	>	//         long startTime = System.nanoTime();
1302	>	//         try {
1303	>	//             r.run();
1304	>	//         } catch (Throwable fail) { threadUnexpectedException(fail); }
1305	>	//         if (millisElapsedSince(startTime) > timeoutMillis/2)
1306	>	//             throw new AssertionFailedError("did not return promptly");
1307	>	//     }
1308	>
1309	>	//     void assertTerminatesPromptly(Runnable r) {
1310	>	//         assertTerminatesPromptly(LONG_DELAY_MS/2, r);
1311	>	//     }
1312	>
1313	>	/**
1314	>	* Checks that timed f.get() returns the expected value, and does not
1315	>	* wait for the timeout to elapse before returning.
1316	>	*/
1317	>	<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
1318	>	long startTime = System.nanoTime();
1319	>	try {
1320	>	assertEquals(expectedValue, f.get(timeoutMillis, MILLISECONDS));
1321	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
1322	>	if (millisElapsedSince(startTime) > timeoutMillis/2)
1323	>	throw new AssertionFailedError("timed get did not return promptly");
1324	>	}
1325	>
1326	>	<T> void checkTimedGet(Future<T> f, T expectedValue) {
1327	>	checkTimedGet(f, expectedValue, LONG_DELAY_MS);
1328		}
1329
1330		/**
#	Line 553 | Line 1337 | public class JSR166TestCase extends Test
1337		return t;
1338		}
1339
1340	+	/**
1341	+	* Waits for the specified time (in milliseconds) for the thread
1342	+	* to terminate (using {@link Thread#join(long)}), else interrupts
1343	+	* the thread (in the hope that it may terminate later) and fails.
1344	+	*/
1345	+	void awaitTermination(Thread t, long timeoutMillis) {
1346	+	try {
1347	+	t.join(timeoutMillis);
1348	+	} catch (InterruptedException fail) {
1349	+	threadUnexpectedException(fail);
1350	+	} finally {
1351	+	if (t.getState() != Thread.State.TERMINATED) {
1352	+	t.interrupt();
1353	+	threadFail("timed out waiting for thread to terminate");
1354	+	}
1355	+	}
1356	+	}
1357	+
1358	+	/**
1359	+	* Waits for LONG_DELAY_MS milliseconds for the thread to
1360	+	* terminate (using {@link Thread#join(long)}), else interrupts
1361	+	* the thread (in the hope that it may terminate later) and fails.
1362	+	*/
1363	+	void awaitTermination(Thread t) {
1364	+	awaitTermination(t, LONG_DELAY_MS);
1365	+	}
1366	+
1367		// Some convenient Runnable classes
1368
1369		public abstract class CheckedRunnable implements Runnable {
#	Line 561 | Line 1372 | public class JSR166TestCase extends Test
1372		public final void run() {
1373		try {
1374		realRun();
1375	<	} catch (Throwable t) {
1376	<	threadUnexpectedException(t);
1375	>	} catch (Throwable fail) {
1376	>	threadUnexpectedException(fail);
1377		}
1378		}
1379		}
#	Line 615 | Line 1426 | public class JSR166TestCase extends Test
1426		realRun();
1427		threadShouldThrow("InterruptedException");
1428		} catch (InterruptedException success) {
1429	<	} catch (Throwable t) {
1430	<	threadUnexpectedException(t);
1429	>	threadAssertFalse(Thread.interrupted());
1430	>	} catch (Throwable fail) {
1431	>	threadUnexpectedException(fail);
1432		}
1433		}
1434		}
#	Line 627 | Line 1439 | public class JSR166TestCase extends Test
1439		public final T call() {
1440		try {
1441		return realCall();
1442	<	} catch (Throwable t) {
1443	<	threadUnexpectedException(t);
1442	>	} catch (Throwable fail) {
1443	>	threadUnexpectedException(fail);
1444		return null;
1445		}
1446		}
#	Line 644 | Line 1456 | public class JSR166TestCase extends Test
1456		threadShouldThrow("InterruptedException");
1457		return result;
1458		} catch (InterruptedException success) {
1459	<	} catch (Throwable t) {
1460	<	threadUnexpectedException(t);
1459	>	threadAssertFalse(Thread.interrupted());
1460	>	} catch (Throwable fail) {
1461	>	threadUnexpectedException(fail);
1462		}
1463		return null;
1464		}
#	Line 662 | Line 1475 | public class JSR166TestCase extends Test
1475		public static final String TEST_STRING = "a test string";
1476
1477		public static class StringTask implements Callable<String> {
1478	<	public String call() { return TEST_STRING; }
1478	>	final String value;
1479	>	public StringTask() { this(TEST_STRING); }
1480	>	public StringTask(String value) { this.value = value; }
1481	>	public String call() { return value; }
1482		}
1483
1484		public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
1485		return new CheckedCallable<String>() {
1486	<	public String realCall() {
1486	>	protected String realCall() {
1487		try {
1488		latch.await();
1489		} catch (InterruptedException quittingTime) {}
#	Line 675 | Line 1491 | public class JSR166TestCase extends Test
1491		}};
1492		}
1493
1494	+	public Runnable countDowner(final CountDownLatch latch) {
1495	+	return new CheckedRunnable() {
1496	+	public void realRun() throws InterruptedException {
1497	+	latch.countDown();
1498	+	}};
1499	+	}
1500	+
1501	+	class LatchAwaiter extends CheckedRunnable {
1502	+	static final int NEW = 0;
1503	+	static final int RUNNING = 1;
1504	+	static final int DONE = 2;
1505	+	final CountDownLatch latch;
1506	+	int state = NEW;
1507	+	LatchAwaiter(CountDownLatch latch) { this.latch = latch; }
1508	+	public void realRun() throws InterruptedException {
1509	+	state = 1;
1510	+	await(latch);
1511	+	state = 2;
1512	+	}
1513	+	}
1514	+
1515	+	public LatchAwaiter awaiter(CountDownLatch latch) {
1516	+	return new LatchAwaiter(latch);
1517	+	}
1518	+
1519	+	public void await(CountDownLatch latch, long timeoutMillis) {
1520	+	try {
1521	+	if (!latch.await(timeoutMillis, MILLISECONDS))
1522	+	fail("timed out waiting for CountDownLatch for "
1523	+	+ (timeoutMillis/1000) + " sec");
1524	+	} catch (Throwable fail) {
1525	+	threadUnexpectedException(fail);
1526	+	}
1527	+	}
1528	+
1529	+	public void await(CountDownLatch latch) {
1530	+	await(latch, LONG_DELAY_MS);
1531	+	}
1532	+
1533	+	public void await(Semaphore semaphore) {
1534	+	try {
1535	+	if (!semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS))
1536	+	fail("timed out waiting for Semaphore for "
1537	+	+ (LONG_DELAY_MS/1000) + " sec");
1538	+	} catch (Throwable fail) {
1539	+	threadUnexpectedException(fail);
1540	+	}
1541	+	}
1542	+
1543	+	//     /**
1544	+	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1545	+	//      */
1546	+	//     public void await(AtomicBoolean flag) {
1547	+	//         await(flag, LONG_DELAY_MS);
1548	+	//     }
1549	+
1550	+	//     /**
1551	+	//      * Spin-waits up to the specified timeout until flag becomes true.
1552	+	//      */
1553	+	//     public void await(AtomicBoolean flag, long timeoutMillis) {
1554	+	//         long startTime = System.nanoTime();
1555	+	//         while (!flag.get()) {
1556	+	//             if (millisElapsedSince(startTime) > timeoutMillis)
1557	+	//                 throw new AssertionFailedError("timed out");
1558	+	//             Thread.yield();
1559	+	//         }
1560	+	//     }
1561	+
1562		public static class NPETask implements Callable<String> {
1563		public String call() { throw new NullPointerException(); }
1564		}
#	Line 685 | Line 1569 | public class JSR166TestCase extends Test
1569
1570		public class ShortRunnable extends CheckedRunnable {
1571		protected void realRun() throws Throwable {
1572	<	Thread.sleep(SHORT_DELAY_MS);
1572	>	delay(SHORT_DELAY_MS);
1573		}
1574		}
1575
1576		public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1577		protected void realRun() throws InterruptedException {
1578	<	Thread.sleep(SHORT_DELAY_MS);
1578	>	delay(SHORT_DELAY_MS);
1579		}
1580		}
1581
1582		public class SmallRunnable extends CheckedRunnable {
1583		protected void realRun() throws Throwable {
1584	<	Thread.sleep(SMALL_DELAY_MS);
1584	>	delay(SMALL_DELAY_MS);
1585		}
1586		}
1587
1588		public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1589		protected void realRun() {
1590		try {
1591	<	Thread.sleep(SMALL_DELAY_MS);
1591	>	delay(SMALL_DELAY_MS);
1592		} catch (InterruptedException ok) {}
1593		}
1594		}
1595
1596		public class SmallCallable extends CheckedCallable {
1597		protected Object realCall() throws InterruptedException {
1598	<	Thread.sleep(SMALL_DELAY_MS);
1598	>	delay(SMALL_DELAY_MS);
1599		return Boolean.TRUE;
1600		}
1601		}
1602
1603		public class MediumRunnable extends CheckedRunnable {
1604		protected void realRun() throws Throwable {
1605	<	Thread.sleep(MEDIUM_DELAY_MS);
1605	>	delay(MEDIUM_DELAY_MS);
1606		}
1607		}
1608
1609		public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1610		protected void realRun() throws InterruptedException {
1611	<	Thread.sleep(MEDIUM_DELAY_MS);
1611	>	delay(MEDIUM_DELAY_MS);
1612		}
1613		}
1614
1615	+	public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1616	+	return new CheckedRunnable() {
1617	+	protected void realRun() {
1618	+	try {
1619	+	delay(timeoutMillis);
1620	+	} catch (InterruptedException ok) {}
1621	+	}};
1622	+	}
1623	+
1624		public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1625		protected void realRun() {
1626		try {
1627	<	Thread.sleep(MEDIUM_DELAY_MS);
1627	>	delay(MEDIUM_DELAY_MS);
1628		} catch (InterruptedException ok) {}
1629		}
1630		}
#	Line 739 | Line 1632 | public class JSR166TestCase extends Test
1632		public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1633		protected void realRun() {
1634		try {
1635	<	Thread.sleep(LONG_DELAY_MS);
1635	>	delay(LONG_DELAY_MS);
1636		} catch (InterruptedException ok) {}
1637		}
1638		}
#	Line 753 | Line 1646 | public class JSR166TestCase extends Test
1646		}
1647		}
1648
1649	+	public interface TrackedRunnable extends Runnable {
1650	+	boolean isDone();
1651	+	}
1652	+
1653	+	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1654	+	return new TrackedRunnable() {
1655	+	private volatile boolean done = false;
1656	+	public boolean isDone() { return done; }
1657	+	public void run() {
1658	+	try {
1659	+	delay(timeoutMillis);
1660	+	done = true;
1661	+	} catch (InterruptedException ok) {}
1662	+	}
1663	+	};
1664	+	}
1665	+
1666		public static class TrackedShortRunnable implements Runnable {
1667		public volatile boolean done = false;
1668		public void run() {
1669		try {
1670	<	Thread.sleep(SMALL_DELAY_MS);
1670	>	delay(SHORT_DELAY_MS);
1671	>	done = true;
1672	>	} catch (InterruptedException ok) {}
1673	>	}
1674	>	}
1675	>
1676	>	public static class TrackedSmallRunnable implements Runnable {
1677	>	public volatile boolean done = false;
1678	>	public void run() {
1679	>	try {
1680	>	delay(SMALL_DELAY_MS);
1681		done = true;
1682		} catch (InterruptedException ok) {}
1683		}
#	Line 767 | Line 1687 | public class JSR166TestCase extends Test
1687		public volatile boolean done = false;
1688		public void run() {
1689		try {
1690	<	Thread.sleep(MEDIUM_DELAY_MS);
1690	>	delay(MEDIUM_DELAY_MS);
1691		done = true;
1692		} catch (InterruptedException ok) {}
1693		}
#	Line 777 | Line 1697 | public class JSR166TestCase extends Test
1697		public volatile boolean done = false;
1698		public void run() {
1699		try {
1700	<	Thread.sleep(LONG_DELAY_MS);
1700	>	delay(LONG_DELAY_MS);
1701		done = true;
1702		} catch (InterruptedException ok) {}
1703		}
#	Line 794 | Line 1714 | public class JSR166TestCase extends Test
1714		public volatile boolean done = false;
1715		public Object call() {
1716		try {
1717	<	Thread.sleep(SMALL_DELAY_MS);
1717	>	delay(SMALL_DELAY_MS);
1718		done = true;
1719		} catch (InterruptedException ok) {}
1720		return Boolean.TRUE;
#	Line 807 | Line 1727 | public class JSR166TestCase extends Test
1727		public abstract class CheckedRecursiveAction extends RecursiveAction {
1728		protected abstract void realCompute() throws Throwable;
1729
1730	<	public final void compute() {
1730	>	@Override protected final void compute() {
1731		try {
1732		realCompute();
1733	<	} catch (Throwable t) {
1734	<	threadUnexpectedException(t);
1733	>	} catch (Throwable fail) {
1734	>	threadUnexpectedException(fail);
1735		}
1736		}
1737		}
#	Line 822 | Line 1742 | public class JSR166TestCase extends Test
1742		public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1743		protected abstract T realCompute() throws Throwable;
1744
1745	<	public final T compute() {
1745	>	@Override protected final T compute() {
1746		try {
1747		return realCompute();
1748	<	} catch (Throwable t) {
1749	<	threadUnexpectedException(t);
1748	>	} catch (Throwable fail) {
1749	>	threadUnexpectedException(fail);
1750		return null;
1751		}
1752		}
#	Line 840 | Line 1760 | public class JSR166TestCase extends Test
1760		ThreadPoolExecutor executor) {}
1761		}
1762
1763	+	/**
1764	+	* A CyclicBarrier that uses timed await and fails with
1765	+	* AssertionFailedErrors instead of throwing checked exceptions.
1766	+	*/
1767	+	public static class CheckedBarrier extends CyclicBarrier {
1768	+	public CheckedBarrier(int parties) { super(parties); }
1769	+
1770	+	public int await() {
1771	+	try {
1772	+	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1773	+	} catch (TimeoutException timedOut) {
1774	+	throw new AssertionFailedError("timed out");
1775	+	} catch (Exception fail) {
1776	+	AssertionFailedError afe =
1777	+	new AssertionFailedError("Unexpected exception: " + fail);
1778	+	afe.initCause(fail);
1779	+	throw afe;
1780	+	}
1781	+	}
1782	+	}
1783	+
1784	+	void checkEmpty(BlockingQueue q) {
1785	+	try {
1786	+	assertTrue(q.isEmpty());
1787	+	assertEquals(0, q.size());
1788	+	assertNull(q.peek());
1789	+	assertNull(q.poll());
1790	+	assertNull(q.poll(0, MILLISECONDS));
1791	+	assertEquals(q.toString(), "[]");
1792	+	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1793	+	assertFalse(q.iterator().hasNext());
1794	+	try {
1795	+	q.element();
1796	+	shouldThrow();
1797	+	} catch (NoSuchElementException success) {}
1798	+	try {
1799	+	q.iterator().next();
1800	+	shouldThrow();
1801	+	} catch (NoSuchElementException success) {}
1802	+	try {
1803	+	q.remove();
1804	+	shouldThrow();
1805	+	} catch (NoSuchElementException success) {}
1806	+	} catch (InterruptedException fail) { threadUnexpectedException(fail); }
1807	+	}
1808	+
1809	+	void assertSerialEquals(Object x, Object y) {
1810	+	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1811	+	}
1812	+
1813	+	void assertNotSerialEquals(Object x, Object y) {
1814	+	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1815	+	}
1816	+
1817	+	byte[] serialBytes(Object o) {
1818	+	try {
1819	+	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1820	+	ObjectOutputStream oos = new ObjectOutputStream(bos);
1821	+	oos.writeObject(o);
1822	+	oos.flush();
1823	+	oos.close();
1824	+	return bos.toByteArray();
1825	+	} catch (Throwable fail) {
1826	+	threadUnexpectedException(fail);
1827	+	return new byte[0];
1828	+	}
1829	+	}
1830	+
1831	+	void assertImmutable(final Object o) {
1832	+	if (o instanceof Collection) {
1833	+	assertThrows(
1834	+	UnsupportedOperationException.class,
1835	+	new Runnable() { public void run() {
1836	+	((Collection) o).add(null);}});
1837	+	}
1838	+	}
1839	+
1840	+	@SuppressWarnings("unchecked")
1841	+	<T> T serialClone(T o) {
1842	+	try {
1843	+	ObjectInputStream ois = new ObjectInputStream
1844	+	(new ByteArrayInputStream(serialBytes(o)));
1845	+	T clone = (T) ois.readObject();
1846	+	if (o == clone) assertImmutable(o);
1847	+	assertSame(o.getClass(), clone.getClass());
1848	+	return clone;
1849	+	} catch (Throwable fail) {
1850	+	threadUnexpectedException(fail);
1851	+	return null;
1852	+	}
1853	+	}
1854	+
1855	+	/**
1856	+	* A version of serialClone that leaves error handling (for
1857	+	* e.g. NotSerializableException) up to the caller.
1858	+	*/
1859	+	@SuppressWarnings("unchecked")
1860	+	<T> T serialClonePossiblyFailing(T o)
1861	+	throws ReflectiveOperationException, java.io.IOException {
1862	+	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1863	+	ObjectOutputStream oos = new ObjectOutputStream(bos);
1864	+	oos.writeObject(o);
1865	+	oos.flush();
1866	+	oos.close();
1867	+	ObjectInputStream ois = new ObjectInputStream
1868	+	(new ByteArrayInputStream(bos.toByteArray()));
1869	+	T clone = (T) ois.readObject();
1870	+	if (o == clone) assertImmutable(o);
1871	+	assertSame(o.getClass(), clone.getClass());
1872	+	return clone;
1873	+	}
1874	+
1875	+	/**
1876	+	* If o implements Cloneable and has a public clone method,
1877	+	* returns a clone of o, else null.
1878	+	*/
1879	+	@SuppressWarnings("unchecked")
1880	+	<T> T cloneableClone(T o) {
1881	+	if (!(o instanceof Cloneable)) return null;
1882	+	final T clone;
1883	+	try {
1884	+	clone = (T) o.getClass().getMethod("clone").invoke(o);
1885	+	} catch (NoSuchMethodException ok) {
1886	+	return null;
1887	+	} catch (ReflectiveOperationException unexpected) {
1888	+	throw new Error(unexpected);
1889	+	}
1890	+	assertNotSame(o, clone); // not 100% guaranteed by spec
1891	+	assertSame(o.getClass(), clone.getClass());
1892	+	return clone;
1893	+	}
1894	+
1895	+	public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1896	+	Runnable... throwingActions) {
1897	+	for (Runnable throwingAction : throwingActions) {
1898	+	boolean threw = false;
1899	+	try { throwingAction.run(); }
1900	+	catch (Throwable t) {
1901	+	threw = true;
1902	+	if (!expectedExceptionClass.isInstance(t)) {
1903	+	AssertionFailedError afe =
1904	+	new AssertionFailedError
1905	+	("Expected " + expectedExceptionClass.getName() +
1906	+	", got " + t.getClass().getName());
1907	+	afe.initCause(t);
1908	+	threadUnexpectedException(afe);
1909	+	}
1910	+	}
1911	+	if (!threw)
1912	+	shouldThrow(expectedExceptionClass.getName());
1913	+	}
1914	+	}
1915	+
1916	+	public void assertIteratorExhausted(Iterator<?> it) {
1917	+	try {
1918	+	it.next();
1919	+	shouldThrow();
1920	+	} catch (NoSuchElementException success) {}
1921	+	assertFalse(it.hasNext());
1922	+	}
1923	+
1924	+	public <T> Callable<T> callableThrowing(final Exception ex) {
1925	+	return new Callable<T>() { public T call() throws Exception { throw ex; }};
1926	+	}
1927	+
1928	+	public Runnable runnableThrowing(final RuntimeException ex) {
1929	+	return new Runnable() { public void run() { throw ex; }};
1930	+	}
1931	+
1932	+	/** A reusable thread pool to be shared by tests. */
1933	+	static final ExecutorService cachedThreadPool =
1934	+	new ThreadPoolExecutor(0, Integer.MAX_VALUE,
1935	+	1000L, MILLISECONDS,
1936	+	new SynchronousQueue<Runnable>());
1937	+
1938	+	static <T> void shuffle(T[] array) {
1939	+	Collections.shuffle(Arrays.asList(array), ThreadLocalRandom.current());
1940	+	}
1941		}

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