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Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.53 by jsr166, Thu Sep 16 00:52:49 2010 UTC vs.
Revision 1.181 by jsr166, Mon Nov 9 06:06:54 2015 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		import static java.util.concurrent.TimeUnit.MILLISECONDS;
10	+	import static java.util.concurrent.TimeUnit.MINUTES;
11	+	import static java.util.concurrent.TimeUnit.NANOSECONDS;
12	+
13	+	import java.io.ByteArrayInputStream;
14	+	import java.io.ByteArrayOutputStream;
15	+	import java.io.ObjectInputStream;
16	+	import java.io.ObjectOutputStream;
17	+	import java.lang.management.ManagementFactory;
18	+	import java.lang.management.ThreadInfo;
19	+	import java.lang.management.ThreadMXBean;
20	+	import java.lang.reflect.Constructor;
21	+	import java.lang.reflect.Method;
22	+	import java.lang.reflect.Modifier;
23	+	import java.nio.file.Files;
24	+	import java.nio.file.Paths;
25		import java.security.CodeSource;
26		import java.security.Permission;
27		import java.security.PermissionCollection;
#	Line 18 | Line 29 | import java.security.Permissions;
29		import java.security.Policy;
30		import java.security.ProtectionDomain;
31		import java.security.SecurityPermission;
32	+	import java.util.ArrayList;
33	+	import java.util.Arrays;
34	+	import java.util.Date;
35	+	import java.util.Enumeration;
36	+	import java.util.Iterator;
37	+	import java.util.List;
38	+	import java.util.NoSuchElementException;
39	+	import java.util.PropertyPermission;
40	+	import java.util.concurrent.BlockingQueue;
41	+	import java.util.concurrent.Callable;
42	+	import java.util.concurrent.CountDownLatch;
43	+	import java.util.concurrent.CyclicBarrier;
44	+	import java.util.concurrent.ExecutionException;
45	+	import java.util.concurrent.Executors;
46	+	import java.util.concurrent.ExecutorService;
47	+	import java.util.concurrent.ForkJoinPool;
48	+	import java.util.concurrent.Future;
49	+	import java.util.concurrent.RecursiveAction;
50	+	import java.util.concurrent.RecursiveTask;
51	+	import java.util.concurrent.RejectedExecutionHandler;
52	+	import java.util.concurrent.Semaphore;
53	+	import java.util.concurrent.ThreadFactory;
54	+	import java.util.concurrent.ThreadPoolExecutor;
55	+	import java.util.concurrent.TimeoutException;
56	+	import java.util.concurrent.atomic.AtomicReference;
57	+	import java.util.regex.Matcher;
58	+	import java.util.regex.Pattern;
59	+
60	+	import junit.framework.AssertionFailedError;
61	+	import junit.framework.Test;
62	+	import junit.framework.TestCase;
63	+	import junit.framework.TestResult;
64	+	import junit.framework.TestSuite;
65
66		/**
67		* Base class for JSR166 Junit TCK tests.  Defines some constants,
#	Line 29 | Line 73 | import java.security.SecurityPermission;
73		*
74		* <ol>
75		*
76	<	* <li> All assertions in code running in generated threads must use
76	>	* <li>All assertions in code running in generated threads must use
77		* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link
78		* #threadAssertEquals}, or {@link #threadAssertNull}, (not
79		* {@code fail}, {@code assertTrue}, etc.) It is OK (but not
80		* particularly recommended) for other code to use these forms too.
81		* Only the most typically used JUnit assertion methods are defined
82	<	* this way, but enough to live with.</li>
82	>	* this way, but enough to live with.
83		*
84	<	* <li> If you override {@link #setUp} or {@link #tearDown}, make sure
84	>	* <li>If you override {@link #setUp} or {@link #tearDown}, make sure
85		* to invoke {@code super.setUp} and {@code super.tearDown} within
86		* them. These methods are used to clear and check for thread
87	<	* assertion failures.</li>
87	>	* assertion failures.
88		*
89		* <li>All delays and timeouts must use one of the constants {@code
90		* SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS},
#	Line 51 | Line 95 | import java.security.SecurityPermission;
95		* is always discriminable as larger than SHORT and smaller than
96		* MEDIUM.  And so on. These constants are set to conservative values,
97		* but even so, if there is ever any doubt, they can all be increased
98	<	* in one spot to rerun tests on slower platforms.</li>
98	>	* in one spot to rerun tests on slower platforms.
99		*
100	<	* <li> All threads generated must be joined inside each test case
100	>	* <li>All threads generated must be joined inside each test case
101		* method (or {@code fail} to do so) before returning from the
102		* method. The {@code joinPool} method can be used to do this when
103	<	* using Executors.</li>
103	>	* using Executors.
104		*
105		* </ol>
106		*
107	<	* <p> <b>Other notes</b>
107	>	* <p><b>Other notes</b>
108		* <ul>
109		*
110	<	* <li> Usually, there is one testcase method per JSR166 method
110	>	* <li>Usually, there is one testcase method per JSR166 method
111		* covering "normal" operation, and then as many exception-testing
112		* methods as there are exceptions the method can throw. Sometimes
113		* there are multiple tests per JSR166 method when the different
114		* "normal" behaviors differ significantly. And sometimes testcases
115	<	* cover multiple methods when they cannot be tested in
72	<	* isolation.</li>
115	>	* cover multiple methods when they cannot be tested in isolation.
116		*
117	<	* <li> The documentation style for testcases is to provide as javadoc
117	>	* <li>The documentation style for testcases is to provide as javadoc
118		* a simple sentence or two describing the property that the testcase
119		* method purports to test. The javadocs do not say anything about how
120	<	* the property is tested. To find out, read the code.</li>
120	>	* the property is tested. To find out, read the code.
121		*
122	<	* <li> These tests are "conformance tests", and do not attempt to
122	>	* <li>These tests are "conformance tests", and do not attempt to
123		* test throughput, latency, scalability or other performance factors
124		* (see the separate "jtreg" tests for a set intended to check these
125		* for the most central aspects of functionality.) So, most tests use
126		* the smallest sensible numbers of threads, collection sizes, etc
127	<	* needed to check basic conformance.</li>
127	>	* needed to check basic conformance.
128		*
129		* <li>The test classes currently do not declare inclusion in
130		* any particular package to simplify things for people integrating
131	<	* them in TCK test suites.</li>
131	>	* them in TCK test suites.
132		*
133	<	* <li> As a convenience, the {@code main} of this class (JSR166TestCase)
134	<	* runs all JSR166 unit tests.</li>
133	>	* <li>As a convenience, the {@code main} of this class (JSR166TestCase)
134	>	* runs all JSR166 unit tests.
135		*
136		* </ul>
137		*/
#	Line 96 | Line 139 | public class JSR166TestCase extends Test
139		private static final boolean useSecurityManager =
140		Boolean.getBoolean("jsr166.useSecurityManager");
141
142	+	protected static final boolean expensiveTests =
143	+	Boolean.getBoolean("jsr166.expensiveTests");
144	+
145	+	/**
146	+	* If true, also run tests that are not part of the official tck
147	+	* because they test unspecified implementation details.
148	+	*/
149	+	protected static final boolean testImplementationDetails =
150	+	Boolean.getBoolean("jsr166.testImplementationDetails");
151	+
152	+	/**
153	+	* If true, report on stdout all "slow" tests, that is, ones that
154	+	* take more than profileThreshold milliseconds to execute.
155	+	*/
156	+	private static final boolean profileTests =
157	+	Boolean.getBoolean("jsr166.profileTests");
158	+
159	+	/**
160	+	* The number of milliseconds that tests are permitted for
161	+	* execution without being reported, when profileTests is set.
162	+	*/
163	+	private static final long profileThreshold =
164	+	Long.getLong("jsr166.profileThreshold", 100);
165	+
166	+	/**
167	+	* The number of repetitions per test (for tickling rare bugs).
168	+	*/
169	+	private static final int runsPerTest =
170	+	Integer.getInteger("jsr166.runsPerTest", 1);
171	+
172	+	/**
173	+	* The number of repetitions of the test suite (for finding leaks?).
174	+	*/
175	+	private static final int suiteRuns =
176	+	Integer.getInteger("jsr166.suiteRuns", 1);
177	+
178	+	/**
179	+	* The scaling factor to apply to standard delays used in tests.
180	+	*/
181	+	private static final int delayFactor =
182	+	Integer.getInteger("jsr166.delay.factor", 1);
183	+
184	+	public JSR166TestCase() { super(); }
185	+	public JSR166TestCase(String name) { super(name); }
186	+
187	+	/**
188	+	* A filter for tests to run, matching strings of the form
189	+	* methodName(className), e.g. "testInvokeAll5(ForkJoinPoolTest)"
190	+	* Usefully combined with jsr166.runsPerTest.
191	+	*/
192	+	private static final Pattern methodFilter = methodFilter();
193	+
194	+	private static Pattern methodFilter() {
195	+	String regex = System.getProperty("jsr166.methodFilter");
196	+	return (regex == null) ? null : Pattern.compile(regex);
197	+	}
198	+
199	+	// Instrumentation to debug very rare, but very annoying hung test runs.
200	+	static volatile TestCase currentTestCase;
201	+	// static volatile int currentRun = 0;
202	+	static {
203	+	Runnable checkForWedgedTest = new Runnable() { public void run() {
204	+	// Avoid spurious reports with enormous runsPerTest.
205	+	// A single test case run should never take more than 1 second.
206	+	// But let's cap it at the high end too ...
207	+	final int timeoutMinutes =
208	+	Math.min(15, Math.max(runsPerTest / 60, 1));
209	+	for (TestCase lastTestCase = currentTestCase;;) {
210	+	try { MINUTES.sleep(timeoutMinutes); }
211	+	catch (InterruptedException unexpected) { break; }
212	+	if (lastTestCase == currentTestCase) {
213	+	System.err.printf(
214	+	"Looks like we're stuck running test: %s%n",
215	+	lastTestCase);
216	+	//                     System.err.printf(
217	+	//                         "Looks like we're stuck running test: %s (%d/%d)%n",
218	+	//                         lastTestCase, currentRun, runsPerTest);
219	+	//                     System.err.println("availableProcessors=" +
220	+	//                         Runtime.getRuntime().availableProcessors());
221	+	//                     System.err.printf("cpu model = %s%n", cpuModel());
222	+	dumpTestThreads();
223	+	// one stack dump is probably enough; more would be spam
224	+	break;
225	+	}
226	+	lastTestCase = currentTestCase;
227	+	}}};
228	+	Thread thread = new Thread(checkForWedgedTest, "checkForWedgedTest");
229	+	thread.setDaemon(true);
230	+	thread.start();
231	+	}
232	+
233	+	//     public static String cpuModel() {
234	+	//         try {
235	+	//             Matcher matcher = Pattern.compile("model name\\s*: (.*)")
236	+	//                 .matcher(new String(
237	+	//                      Files.readAllBytes(Paths.get("/proc/cpuinfo")), "UTF-8"));
238	+	//             matcher.find();
239	+	//             return matcher.group(1);
240	+	//         } catch (Exception ex) { return null; }
241	+	//     }
242	+
243	+	public void runBare() throws Throwable {
244	+	currentTestCase = this;
245	+	if (methodFilter == null
246	+	|| methodFilter.matcher(toString()).find())
247	+	super.runBare();
248	+	}
249	+
250	+	protected void runTest() throws Throwable {
251	+	for (int i = 0; i < runsPerTest; i++) {
252	+	// currentRun = i;
253	+	if (profileTests)
254	+	runTestProfiled();
255	+	else
256	+	super.runTest();
257	+	}
258	+	}
259	+
260	+	protected void runTestProfiled() throws Throwable {
261	+	for (int i = 0; i < 2; i++) {
262	+	long startTime = System.nanoTime();
263	+	super.runTest();
264	+	long elapsedMillis = millisElapsedSince(startTime);
265	+	if (elapsedMillis < profileThreshold)
266	+	break;
267	+	// Never report first run of any test; treat it as a
268	+	// warmup run, notably to trigger all needed classloading,
269	+	if (i > 0)
270	+	System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
271	+	}
272	+	}
273	+
274		/**
275	<	* Runs all JSR166 unit tests using junit.textui.TestRunner
275	>	* Runs all JSR166 unit tests using junit.textui.TestRunner.
276		*/
277		public static void main(String[] args) {
278	+	main(suite(), args);
279	+	}
280	+
281	+	static class PithyResultPrinter extends junit.textui.ResultPrinter {
282	+	PithyResultPrinter(java.io.PrintStream writer) { super(writer); }
283	+	long runTime;
284	+	public void startTest(Test test) {}
285	+	protected void printHeader(long runTime) {
286	+	this.runTime = runTime; // defer printing for later
287	+	}
288	+	protected void printFooter(TestResult result) {
289	+	if (result.wasSuccessful()) {
290	+	getWriter().println("OK (" + result.runCount() + " tests)"
291	+	+ "  Time: " + elapsedTimeAsString(runTime));
292	+	} else {
293	+	getWriter().println("Time: " + elapsedTimeAsString(runTime));
294	+	super.printFooter(result);
295	+	}
296	+	}
297	+	}
298	+
299	+	/**
300	+	* Returns a TestRunner that doesn't bother with unnecessary
301	+	* fluff, like printing a "." for each test case.
302	+	*/
303	+	static junit.textui.TestRunner newPithyTestRunner() {
304	+	junit.textui.TestRunner runner = new junit.textui.TestRunner();
305	+	runner.setPrinter(new PithyResultPrinter(System.out));
306	+	return runner;
307	+	}
308	+
309	+	/**
310	+	* Runs all unit tests in the given test suite.
311	+	* Actual behavior influenced by jsr166.* system properties.
312	+	*/
313	+	static void main(Test suite, String[] args) {
314		if (useSecurityManager) {
315		System.err.println("Setting a permissive security manager");
316		Policy.setPolicy(permissivePolicy());
317		System.setSecurityManager(new SecurityManager());
318		}
319	<	int iters = 1;
320	<	if (args.length > 0)
321	<	iters = Integer.parseInt(args[0]);
322	<	Test s = suite();
112	<	for (int i = 0; i < iters; ++i) {
113	<	junit.textui.TestRunner.run(s);
319	>	for (int i = 0; i < suiteRuns; i++) {
320	>	TestResult result = newPithyTestRunner().doRun(suite);
321	>	if (!result.wasSuccessful())
322	>	System.exit(1);
323		System.gc();
324		System.runFinalization();
325		}
326	<	System.exit(0);
326	>	}
327	>
328	>	public static TestSuite newTestSuite(Object... suiteOrClasses) {
329	>	TestSuite suite = new TestSuite();
330	>	for (Object suiteOrClass : suiteOrClasses) {
331	>	if (suiteOrClass instanceof TestSuite)
332	>	suite.addTest((TestSuite) suiteOrClass);
333	>	else if (suiteOrClass instanceof Class)
334	>	suite.addTest(new TestSuite((Class<?>) suiteOrClass));
335	>	else
336	>	throw new ClassCastException("not a test suite or class");
337	>	}
338	>	return suite;
339	>	}
340	>
341	>	public static void addNamedTestClasses(TestSuite suite,
342	>	String... testClassNames) {
343	>	for (String testClassName : testClassNames) {
344	>	try {
345	>	Class<?> testClass = Class.forName(testClassName);
346	>	Method m = testClass.getDeclaredMethod("suite",
347	>	new Class<?>[0]);
348	>	suite.addTest(newTestSuite((Test)m.invoke(null)));
349	>	} catch (Exception e) {
350	>	throw new Error("Missing test class", e);
351	>	}
352	>	}
353	>	}
354	>
355	>	public static final double JAVA_CLASS_VERSION;
356	>	public static final String JAVA_SPECIFICATION_VERSION;
357	>	static {
358	>	try {
359	>	JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
360	>	new java.security.PrivilegedAction<Double>() {
361	>	public Double run() {
362	>	return Double.valueOf(System.getProperty("java.class.version"));}});
363	>	JAVA_SPECIFICATION_VERSION = java.security.AccessController.doPrivileged(
364	>	new java.security.PrivilegedAction<String>() {
365	>	public String run() {
366	>	return System.getProperty("java.specification.version");}});
367	>	} catch (Throwable t) {
368	>	throw new Error(t);
369	>	}
370	>	}
371	>
372	>	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
373	>	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
374	>	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
375	>	public static boolean atLeastJava9() {
376	>	return JAVA_CLASS_VERSION >= 53.0
377	>	// As of 2015-09, java9 still uses 52.0 class file version
378	>	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?(9|[0-9][0-9])$");
379	>	}
380	>	public static boolean atLeastJava10() {
381	>	return JAVA_CLASS_VERSION >= 54.0
382	>	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?[0-9][0-9]$");
383		}
384
385		/**
386	<	* Collects all JSR166 unit tests as one suite
386	>	* Collects all JSR166 unit tests as one suite.
387		*/
388		public static Test suite() {
389	<	TestSuite suite = new TestSuite("JSR166 Unit Tests");
390	<
391	<	suite.addTest(new TestSuite(ForkJoinPoolTest.class));
392	<	suite.addTest(new TestSuite(ForkJoinTaskTest.class));
393	<	suite.addTest(new TestSuite(RecursiveActionTest.class));
394	<	suite.addTest(new TestSuite(RecursiveTaskTest.class));
395	<	suite.addTest(new TestSuite(LinkedTransferQueueTest.class));
396	<	suite.addTest(new TestSuite(PhaserTest.class));
397	<	suite.addTest(new TestSuite(ThreadLocalRandomTest.class));
398	<	suite.addTest(new TestSuite(AbstractExecutorServiceTest.class));
399	<	suite.addTest(new TestSuite(AbstractQueueTest.class));
400	<	suite.addTest(new TestSuite(AbstractQueuedSynchronizerTest.class));
401	<	suite.addTest(new TestSuite(AbstractQueuedLongSynchronizerTest.class));
402	<	suite.addTest(new TestSuite(ArrayBlockingQueueTest.class));
403	<	suite.addTest(new TestSuite(ArrayDequeTest.class));
404	<	suite.addTest(new TestSuite(AtomicBooleanTest.class));
405	<	suite.addTest(new TestSuite(AtomicIntegerArrayTest.class));
406	<	suite.addTest(new TestSuite(AtomicIntegerFieldUpdaterTest.class));
407	<	suite.addTest(new TestSuite(AtomicIntegerTest.class));
408	<	suite.addTest(new TestSuite(AtomicLongArrayTest.class));
409	<	suite.addTest(new TestSuite(AtomicLongFieldUpdaterTest.class));
410	<	suite.addTest(new TestSuite(AtomicLongTest.class));
411	<	suite.addTest(new TestSuite(AtomicMarkableReferenceTest.class));
412	<	suite.addTest(new TestSuite(AtomicReferenceArrayTest.class));
413	<	suite.addTest(new TestSuite(AtomicReferenceFieldUpdaterTest.class));
414	<	suite.addTest(new TestSuite(AtomicReferenceTest.class));
415	<	suite.addTest(new TestSuite(AtomicStampedReferenceTest.class));
416	<	suite.addTest(new TestSuite(ConcurrentHashMapTest.class));
417	<	suite.addTest(new TestSuite(ConcurrentLinkedDequeTest.class));
418	<	suite.addTest(new TestSuite(ConcurrentLinkedQueueTest.class));
419	<	suite.addTest(new TestSuite(ConcurrentSkipListMapTest.class));
420	<	suite.addTest(new TestSuite(ConcurrentSkipListSubMapTest.class));
421	<	suite.addTest(new TestSuite(ConcurrentSkipListSetTest.class));
422	<	suite.addTest(new TestSuite(ConcurrentSkipListSubSetTest.class));
423	<	suite.addTest(new TestSuite(CopyOnWriteArrayListTest.class));
424	<	suite.addTest(new TestSuite(CopyOnWriteArraySetTest.class));
425	<	suite.addTest(new TestSuite(CountDownLatchTest.class));
426	<	suite.addTest(new TestSuite(CyclicBarrierTest.class));
427	<	suite.addTest(new TestSuite(DelayQueueTest.class));
428	<	suite.addTest(new TestSuite(EntryTest.class));
429	<	suite.addTest(new TestSuite(ExchangerTest.class));
430	<	suite.addTest(new TestSuite(ExecutorsTest.class));
431	<	suite.addTest(new TestSuite(ExecutorCompletionServiceTest.class));
432	<	suite.addTest(new TestSuite(FutureTaskTest.class));
433	<	suite.addTest(new TestSuite(LinkedBlockingDequeTest.class));
434	<	suite.addTest(new TestSuite(LinkedBlockingQueueTest.class));
435	<	suite.addTest(new TestSuite(LinkedListTest.class));
436	<	suite.addTest(new TestSuite(LockSupportTest.class));
437	<	suite.addTest(new TestSuite(PriorityBlockingQueueTest.class));
438	<	suite.addTest(new TestSuite(PriorityQueueTest.class));
439	<	suite.addTest(new TestSuite(ReentrantLockTest.class));
440	<	suite.addTest(new TestSuite(ReentrantReadWriteLockTest.class));
441	<	suite.addTest(new TestSuite(ScheduledExecutorTest.class));
442	<	suite.addTest(new TestSuite(ScheduledExecutorSubclassTest.class));
443	<	suite.addTest(new TestSuite(SemaphoreTest.class));
444	<	suite.addTest(new TestSuite(SynchronousQueueTest.class));
445	<	suite.addTest(new TestSuite(SystemTest.class));
446	<	suite.addTest(new TestSuite(ThreadLocalTest.class));
447	<	suite.addTest(new TestSuite(ThreadPoolExecutorTest.class));
448	<	suite.addTest(new TestSuite(ThreadPoolExecutorSubclassTest.class));
449	<	suite.addTest(new TestSuite(ThreadTest.class));
450	<	suite.addTest(new TestSuite(TimeUnitTest.class));
451	<	suite.addTest(new TestSuite(TreeMapTest.class));
452	<	suite.addTest(new TestSuite(TreeSetTest.class));
453	<	suite.addTest(new TestSuite(TreeSubMapTest.class));
454	<	suite.addTest(new TestSuite(TreeSubSetTest.class));
389	>	// Java7+ test classes
390	>	TestSuite suite = newTestSuite(
391	>	ForkJoinPoolTest.suite(),
392	>	ForkJoinTaskTest.suite(),
393	>	RecursiveActionTest.suite(),
394	>	RecursiveTaskTest.suite(),
395	>	LinkedTransferQueueTest.suite(),
396	>	PhaserTest.suite(),
397	>	ThreadLocalRandomTest.suite(),
398	>	AbstractExecutorServiceTest.suite(),
399	>	AbstractQueueTest.suite(),
400	>	AbstractQueuedSynchronizerTest.suite(),
401	>	AbstractQueuedLongSynchronizerTest.suite(),
402	>	ArrayBlockingQueueTest.suite(),
403	>	ArrayDequeTest.suite(),
404	>	AtomicBooleanTest.suite(),
405	>	AtomicIntegerArrayTest.suite(),
406	>	AtomicIntegerFieldUpdaterTest.suite(),
407	>	AtomicIntegerTest.suite(),
408	>	AtomicLongArrayTest.suite(),
409	>	AtomicLongFieldUpdaterTest.suite(),
410	>	AtomicLongTest.suite(),
411	>	AtomicMarkableReferenceTest.suite(),
412	>	AtomicReferenceArrayTest.suite(),
413	>	AtomicReferenceFieldUpdaterTest.suite(),
414	>	AtomicReferenceTest.suite(),
415	>	AtomicStampedReferenceTest.suite(),
416	>	ConcurrentHashMapTest.suite(),
417	>	ConcurrentLinkedDequeTest.suite(),
418	>	ConcurrentLinkedQueueTest.suite(),
419	>	ConcurrentSkipListMapTest.suite(),
420	>	ConcurrentSkipListSubMapTest.suite(),
421	>	ConcurrentSkipListSetTest.suite(),
422	>	ConcurrentSkipListSubSetTest.suite(),
423	>	CopyOnWriteArrayListTest.suite(),
424	>	CopyOnWriteArraySetTest.suite(),
425	>	CountDownLatchTest.suite(),
426	>	CyclicBarrierTest.suite(),
427	>	DelayQueueTest.suite(),
428	>	EntryTest.suite(),
429	>	ExchangerTest.suite(),
430	>	ExecutorsTest.suite(),
431	>	ExecutorCompletionServiceTest.suite(),
432	>	FutureTaskTest.suite(),
433	>	LinkedBlockingDequeTest.suite(),
434	>	LinkedBlockingQueueTest.suite(),
435	>	LinkedListTest.suite(),
436	>	LockSupportTest.suite(),
437	>	PriorityBlockingQueueTest.suite(),
438	>	PriorityQueueTest.suite(),
439	>	ReentrantLockTest.suite(),
440	>	ReentrantReadWriteLockTest.suite(),
441	>	ScheduledExecutorTest.suite(),
442	>	ScheduledExecutorSubclassTest.suite(),
443	>	SemaphoreTest.suite(),
444	>	SynchronousQueueTest.suite(),
445	>	SystemTest.suite(),
446	>	ThreadLocalTest.suite(),
447	>	ThreadPoolExecutorTest.suite(),
448	>	ThreadPoolExecutorSubclassTest.suite(),
449	>	ThreadTest.suite(),
450	>	TimeUnitTest.suite(),
451	>	TreeMapTest.suite(),
452	>	TreeSetTest.suite(),
453	>	TreeSubMapTest.suite(),
454	>	TreeSubSetTest.suite());
455	>
456	>	// Java8+ test classes
457	>	if (atLeastJava8()) {
458	>	String[] java8TestClassNames = {
459	>	"Atomic8Test",
460	>	"CompletableFutureTest",
461	>	"ConcurrentHashMap8Test",
462	>	"CountedCompleterTest",
463	>	"DoubleAccumulatorTest",
464	>	"DoubleAdderTest",
465	>	"ForkJoinPool8Test",
466	>	"ForkJoinTask8Test",
467	>	"LongAccumulatorTest",
468	>	"LongAdderTest",
469	>	"SplittableRandomTest",
470	>	"StampedLockTest",
471	>	"SubmissionPublisherTest",
472	>	"ThreadLocalRandom8Test",
473	>	};
474	>	addNamedTestClasses(suite, java8TestClassNames);
475	>	}
476	>
477	>	// Java9+ test classes
478	>	if (atLeastJava9()) {
479	>	String[] java9TestClassNames = {
480	>	// Currently empty, but expecting varhandle tests
481	>	};
482	>	addNamedTestClasses(suite, java9TestClassNames);
483	>	}
484
485		return suite;
486		}
487
488	+	/** Returns list of junit-style test method names in given class. */
489	+	public static ArrayList<String> testMethodNames(Class<?> testClass) {
490	+	Method[] methods = testClass.getDeclaredMethods();
491	+	ArrayList<String> names = new ArrayList<String>(methods.length);
492	+	for (Method method : methods) {
493	+	if (method.getName().startsWith("test")
494	+	&& Modifier.isPublic(method.getModifiers())
495	+	// method.getParameterCount() requires jdk8+
496	+	&& method.getParameterTypes().length == 0) {
497	+	names.add(method.getName());
498	+	}
499	+	}
500	+	return names;
501	+	}
502	+
503	+	/**
504	+	* Returns junit-style testSuite for the given test class, but
505	+	* parameterized by passing extra data to each test.
506	+	*/
507	+	public static <ExtraData> Test parameterizedTestSuite
508	+	(Class<? extends JSR166TestCase> testClass,
509	+	Class<ExtraData> dataClass,
510	+	ExtraData data) {
511	+	try {
512	+	TestSuite suite = new TestSuite();
513	+	Constructor c =
514	+	testClass.getDeclaredConstructor(dataClass, String.class);
515	+	for (String methodName : testMethodNames(testClass))
516	+	suite.addTest((Test) c.newInstance(data, methodName));
517	+	return suite;
518	+	} catch (Exception e) {
519	+	throw new Error(e);
520	+	}
521	+	}
522	+
523	+	/**
524	+	* Returns junit-style testSuite for the jdk8 extension of the
525	+	* given test class, but parameterized by passing extra data to
526	+	* each test.  Uses reflection to allow compilation in jdk7.
527	+	*/
528	+	public static <ExtraData> Test jdk8ParameterizedTestSuite
529	+	(Class<? extends JSR166TestCase> testClass,
530	+	Class<ExtraData> dataClass,
531	+	ExtraData data) {
532	+	if (atLeastJava8()) {
533	+	String name = testClass.getName();
534	+	String name8 = name.replaceAll("Test$", "8Test");
535	+	if (name.equals(name8)) throw new Error(name);
536	+	try {
537	+	return (Test)
538	+	Class.forName(name8)
539	+	.getMethod("testSuite", new Class[] { dataClass })
540	+	.invoke(null, data);
541	+	} catch (Exception e) {
542	+	throw new Error(e);
543	+	}
544	+	} else {
545	+	return new TestSuite();
546	+	}
547	+	}
548	+
549	+	// Delays for timing-dependent tests, in milliseconds.
550
551		public static long SHORT_DELAY_MS;
552		public static long SMALL_DELAY_MS;
553		public static long MEDIUM_DELAY_MS;
554		public static long LONG_DELAY_MS;
555
200	–
556		/**
557	<	* Returns the shortest timed delay. This could
558	<	* be reimplemented to use for example a Property.
557	>	* Returns the shortest timed delay. This can be scaled up for
558	>	* slow machines using the jsr166.delay.factor system property.
559		*/
560		protected long getShortDelay() {
561	<	return 50;
561	>	return 50 * delayFactor;
562		}
563
209	–
564		/**
565		* Sets delays as multiples of SHORT_DELAY.
566		*/
#	Line 214 | Line 568 | public class JSR166TestCase extends Test
568		SHORT_DELAY_MS = getShortDelay();
569		SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
570		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
571	<	LONG_DELAY_MS   = SHORT_DELAY_MS * 50;
571	>	LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
572	>	}
573	>
574	>	/**
575	>	* Returns a timeout in milliseconds to be used in tests that
576	>	* verify that operations block or time out.
577	>	*/
578	>	long timeoutMillis() {
579	>	return SHORT_DELAY_MS / 4;
580	>	}
581	>
582	>	/**
583	>	* Returns a new Date instance representing a time at least
584	>	* delayMillis milliseconds in the future.
585	>	*/
586	>	Date delayedDate(long delayMillis) {
587	>	// Add 1 because currentTimeMillis is known to round into the past.
588	>	return new Date(System.currentTimeMillis() + delayMillis + 1);
589		}
590
591		/**
#	Line 230 | Line 601 | public class JSR166TestCase extends Test
601		* the same test have no effect.
602		*/
603		public void threadRecordFailure(Throwable t) {
604	+	System.err.println(t);
605	+	dumpTestThreads();
606		threadFailure.compareAndSet(null, t);
607		}
608
#	Line 237 | Line 610 | public class JSR166TestCase extends Test
610		setDelays();
611		}
612
613	+	void tearDownFail(String format, Object... args) {
614	+	String msg = toString() + ": " + String.format(format, args);
615	+	System.err.println(msg);
616	+	dumpTestThreads();
617	+	throw new AssertionFailedError(msg);
618	+	}
619	+
620		/**
621	+	* Extra checks that get done for all test cases.
622	+	*
623		* Triggers test case failure if any thread assertions have failed,
624		* by rethrowing, in the test harness thread, any exception recorded
625		* earlier by threadRecordFailure.
626	+	*
627	+	* Triggers test case failure if interrupt status is set in the main thread.
628		*/
629		public void tearDown() throws Exception {
630	<	Throwable t = threadFailure.get();
630	>	Throwable t = threadFailure.getAndSet(null);
631		if (t != null) {
632		if (t instanceof Error)
633		throw (Error) t;
#	Line 251 | Line 635 | public class JSR166TestCase extends Test
635		throw (RuntimeException) t;
636		else if (t instanceof Exception)
637		throw (Exception) t;
638	<	else
639	<	throw new AssertionError(t);
638	>	else {
639	>	AssertionFailedError afe =
640	>	new AssertionFailedError(t.toString());
641	>	afe.initCause(t);
642	>	throw afe;
643	>	}
644	>	}
645	>
646	>	if (Thread.interrupted())
647	>	tearDownFail("interrupt status set in main thread");
648	>
649	>	checkForkJoinPoolThreadLeaks();
650	>	}
651	>
652	>	/**
653	>	* Finds missing PoolCleaners
654	>	*/
655	>	void checkForkJoinPoolThreadLeaks() throws InterruptedException {
656	>	Thread[] survivors = new Thread[7];
657	>	int count = Thread.enumerate(survivors);
658	>	for (int i = 0; i < count; i++) {
659	>	Thread thread = survivors[i];
660	>	String name = thread.getName();
661	>	if (name.startsWith("ForkJoinPool-")) {
662	>	// give thread some time to terminate
663	>	thread.join(LONG_DELAY_MS);
664	>	if (thread.isAlive())
665	>	tearDownFail("Found leaked ForkJoinPool thread thread=%s",
666	>	thread);
667	>	}
668		}
669	+
670	+	if (!ForkJoinPool.commonPool()
671	+	.awaitQuiescence(LONG_DELAY_MS, MILLISECONDS))
672	+	tearDownFail("ForkJoin common pool thread stuck");
673		}
674
675		/**
676		* Just like fail(reason), but additionally recording (using
677	<	* threadRecordFailure) any AssertionError thrown, so that the current
678	<	* testcase will fail.
677	>	* threadRecordFailure) any AssertionFailedError thrown, so that
678	>	* the current testcase will fail.
679		*/
680		public void threadFail(String reason) {
681		try {
682		fail(reason);
683	<	} catch (Throwable t) {
683	>	} catch (AssertionFailedError t) {
684		threadRecordFailure(t);
685	<	fail(reason);
685	>	throw t;
686		}
687		}
688
689		/**
690		* Just like assertTrue(b), but additionally recording (using
691	<	* threadRecordFailure) any AssertionError thrown, so that the current
692	<	* testcase will fail.
691	>	* threadRecordFailure) any AssertionFailedError thrown, so that
692	>	* the current testcase will fail.
693		*/
694		public void threadAssertTrue(boolean b) {
695		try {
696		assertTrue(b);
697	<	} catch (AssertionError t) {
697	>	} catch (AssertionFailedError t) {
698		threadRecordFailure(t);
699		throw t;
700		}
#	Line 286 | Line 702 | public class JSR166TestCase extends Test
702
703		/**
704		* Just like assertFalse(b), but additionally recording (using
705	<	* threadRecordFailure) any AssertionError thrown, so that the
706	<	* current testcase will fail.
705	>	* threadRecordFailure) any AssertionFailedError thrown, so that
706	>	* the current testcase will fail.
707		*/
708		public void threadAssertFalse(boolean b) {
709		try {
710		assertFalse(b);
711	<	} catch (AssertionError t) {
711	>	} catch (AssertionFailedError t) {
712		threadRecordFailure(t);
713		throw t;
714		}
#	Line 300 | Line 716 | public class JSR166TestCase extends Test
716
717		/**
718		* Just like assertNull(x), but additionally recording (using
719	<	* threadRecordFailure) any AssertionError thrown, so that the
720	<	* current testcase will fail.
719	>	* threadRecordFailure) any AssertionFailedError thrown, so that
720	>	* the current testcase will fail.
721		*/
722		public void threadAssertNull(Object x) {
723		try {
724		assertNull(x);
725	<	} catch (AssertionError t) {
725	>	} catch (AssertionFailedError t) {
726		threadRecordFailure(t);
727		throw t;
728		}
#	Line 314 | Line 730 | public class JSR166TestCase extends Test
730
731		/**
732		* Just like assertEquals(x, y), but additionally recording (using
733	<	* threadRecordFailure) any AssertionError thrown, so that the
734	<	* current testcase will fail.
733	>	* threadRecordFailure) any AssertionFailedError thrown, so that
734	>	* the current testcase will fail.
735		*/
736		public void threadAssertEquals(long x, long y) {
737		try {
738		assertEquals(x, y);
739	<	} catch (AssertionError t) {
739	>	} catch (AssertionFailedError t) {
740		threadRecordFailure(t);
741		throw t;
742		}
#	Line 328 | Line 744 | public class JSR166TestCase extends Test
744
745		/**
746		* Just like assertEquals(x, y), but additionally recording (using
747	<	* threadRecordFailure) any AssertionError thrown, so that the
748	<	* current testcase will fail.
747	>	* threadRecordFailure) any AssertionFailedError thrown, so that
748	>	* the current testcase will fail.
749		*/
750		public void threadAssertEquals(Object x, Object y) {
751		try {
752		assertEquals(x, y);
753	<	} catch (AssertionError t) {
754	<	threadRecordFailure(t);
755	<	throw t;
753	>	} catch (AssertionFailedError fail) {
754	>	threadRecordFailure(fail);
755	>	throw fail;
756	>	} catch (Throwable fail) {
757	>	threadUnexpectedException(fail);
758		}
759		}
760
761		/**
762		* Just like assertSame(x, y), but additionally recording (using
763	<	* threadRecordFailure) any AssertionError thrown, so that the
764	<	* current testcase will fail.
763	>	* threadRecordFailure) any AssertionFailedError thrown, so that
764	>	* the current testcase will fail.
765		*/
766		public void threadAssertSame(Object x, Object y) {
767		try {
768		assertSame(x, y);
769	<	} catch (AssertionError t) {
770	<	threadRecordFailure(t);
771	<	throw t;
769	>	} catch (AssertionFailedError fail) {
770	>	threadRecordFailure(fail);
771	>	throw fail;
772		}
773		}
774
#	Line 369 | Line 787 | public class JSR166TestCase extends Test
787		}
788
789		/**
790	<	* Calls threadFail with message "Unexpected exception" + ex.
790	>	* Records the given exception using {@link #threadRecordFailure},
791	>	* then rethrows the exception, wrapping it in an
792	>	* AssertionFailedError if necessary.
793		*/
794		public void threadUnexpectedException(Throwable t) {
795		threadRecordFailure(t);
796		t.printStackTrace();
377	–	// Rethrow, wrapping in an AssertionError if necessary
797		if (t instanceof RuntimeException)
798		throw (RuntimeException) t;
799		else if (t instanceof Error)
800		throw (Error) t;
801		else {
802	<	AssertionError ae = new AssertionError("unexpected exception: " + t);
803	<	t.initCause(t);
804	<	throw ae;
805	<	}
802	>	AssertionFailedError afe =
803	>	new AssertionFailedError("unexpected exception: " + t);
804	>	afe.initCause(t);
805	>	throw afe;
806	>	}
807	>	}
808	>
809	>	/**
810	>	* Delays, via Thread.sleep, for the given millisecond delay, but
811	>	* if the sleep is shorter than specified, may re-sleep or yield
812	>	* until time elapses.  Ensures that the given time, as measured
813	>	* by System.nanoTime(), has elapsed.
814	>	*/
815	>	static void delay(long millis) throws InterruptedException {
816	>	long nanos = millis * (1000 * 1000);
817	>	final long wakeupTime = System.nanoTime() + nanos;
818	>	do {
819	>	if (millis > 0L)
820	>	Thread.sleep(millis);
821	>	else // too short to sleep
822	>	Thread.yield();
823	>	nanos = wakeupTime - System.nanoTime();
824	>	millis = nanos / (1000 * 1000);
825	>	} while (nanos >= 0L);
826	>	}
827	>
828	>	/**
829	>	* Allows use of try-with-resources with per-test thread pools.
830	>	*/
831	>	class PoolCleaner implements AutoCloseable {
832	>	private final ExecutorService pool;
833	>	public PoolCleaner(ExecutorService pool) { this.pool = pool; }
834	>	public void close() { joinPool(pool); }
835	>	}
836	>
837	>	/**
838	>	* An extension of PoolCleaner that has an action to release the pool.
839	>	*/
840	>	class PoolCleanerWithReleaser extends PoolCleaner {
841	>	private final Runnable releaser;
842	>	public PoolCleanerWithReleaser(ExecutorService pool, Runnable releaser) {
843	>	super(pool);
844	>	this.releaser = releaser;
845	>	}
846	>	public void close() {
847	>	try {
848	>	releaser.run();
849	>	} finally {
850	>	super.close();
851	>	}
852	>	}
853	>	}
854	>
855	>	PoolCleaner cleaner(ExecutorService pool) {
856	>	return new PoolCleaner(pool);
857	>	}
858	>
859	>	PoolCleaner cleaner(ExecutorService pool, Runnable releaser) {
860	>	return new PoolCleanerWithReleaser(pool, releaser);
861	>	}
862	>
863	>	PoolCleaner cleaner(ExecutorService pool, CountDownLatch latch) {
864	>	return new PoolCleanerWithReleaser(pool, releaser(latch));
865	>	}
866	>
867	>	Runnable releaser(final CountDownLatch latch) {
868	>	return new Runnable() { public void run() {
869	>	do { latch.countDown(); }
870	>	while (latch.getCount() > 0);
871	>	}};
872		}
873
874		/**
875		* Waits out termination of a thread pool or fails doing so.
876		*/
877	<	public void joinPool(ExecutorService exec) {
877	>	void joinPool(ExecutorService pool) {
878		try {
879	<	exec.shutdown();
880	<	assertTrue(exec.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
879	>	pool.shutdown();
880	>	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)) {
881	>	try {
882	>	threadFail("ExecutorService " + pool +
883	>	" did not terminate in a timely manner");
884	>	} finally {
885	>	// last resort, for the benefit of subsequent tests
886	>	pool.shutdownNow();
887	>	pool.awaitTermination(MEDIUM_DELAY_MS, MILLISECONDS);
888	>	}
889	>	}
890		} catch (SecurityException ok) {
891		// Allowed in case test doesn't have privs
892	<	} catch (InterruptedException ie) {
893	<	fail("Unexpected InterruptedException");
892	>	} catch (InterruptedException fail) {
893	>	threadFail("Unexpected InterruptedException");
894		}
895		}
896
897	+	/** Like Runnable, but with the freedom to throw anything */
898	+	interface Action { public void run() throws Throwable; }
899	+
900	+	/**
901	+	* Runs all the given actions in parallel, failing if any fail.
902	+	* Useful for running multiple variants of tests that are
903	+	* necessarily individually slow because they must block.
904	+	*/
905	+	void testInParallel(Action ... actions) {
906	+	ExecutorService pool = Executors.newCachedThreadPool();
907	+	try (PoolCleaner cleaner = cleaner(pool)) {
908	+	ArrayList<Future<?>> futures = new ArrayList<>(actions.length);
909	+	for (final Action action : actions)
910	+	futures.add(pool.submit(new CheckedRunnable() {
911	+	public void realRun() throws Throwable { action.run();}}));
912	+	for (Future<?> future : futures)
913	+	try {
914	+	assertNull(future.get(LONG_DELAY_MS, MILLISECONDS));
915	+	} catch (ExecutionException ex) {
916	+	threadUnexpectedException(ex.getCause());
917	+	} catch (Exception ex) {
918	+	threadUnexpectedException(ex);
919	+	}
920	+	}
921	+	}
922	+
923	+	/**
924	+	* A debugging tool to print stack traces of most threads, as jstack does.
925	+	* Uninteresting threads are filtered out.
926	+	*/
927	+	static void dumpTestThreads() {
928	+	ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
929	+	System.err.println("------ stacktrace dump start ------");
930	+	for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) {
931	+	String name = info.getThreadName();
932	+	if ("Signal Dispatcher".equals(name))
933	+	continue;
934	+	if ("Reference Handler".equals(name)
935	+	&& info.getLockName().startsWith("java.lang.ref.Reference$Lock"))
936	+	continue;
937	+	if ("Finalizer".equals(name)
938	+	&& info.getLockName().startsWith("java.lang.ref.ReferenceQueue$Lock"))
939	+	continue;
940	+	if ("checkForWedgedTest".equals(name))
941	+	continue;
942	+	System.err.print(info);
943	+	}
944	+	System.err.println("------ stacktrace dump end ------");
945	+	}
946	+
947	+	/**
948	+	* Checks that thread does not terminate within the default
949	+	* millisecond delay of {@code timeoutMillis()}.
950	+	*/
951	+	void assertThreadStaysAlive(Thread thread) {
952	+	assertThreadStaysAlive(thread, timeoutMillis());
953	+	}
954	+
955	+	/**
956	+	* Checks that thread does not terminate within the given millisecond delay.
957	+	*/
958	+	void assertThreadStaysAlive(Thread thread, long millis) {
959	+	try {
960	+	// No need to optimize the failing case via Thread.join.
961	+	delay(millis);
962	+	assertTrue(thread.isAlive());
963	+	} catch (InterruptedException fail) {
964	+	threadFail("Unexpected InterruptedException");
965	+	}
966	+	}
967	+
968	+	/**
969	+	* Checks that the threads do not terminate within the default
970	+	* millisecond delay of {@code timeoutMillis()}.
971	+	*/
972	+	void assertThreadsStayAlive(Thread... threads) {
973	+	assertThreadsStayAlive(timeoutMillis(), threads);
974	+	}
975	+
976	+	/**
977	+	* Checks that the threads do not terminate within the given millisecond delay.
978	+	*/
979	+	void assertThreadsStayAlive(long millis, Thread... threads) {
980	+	try {
981	+	// No need to optimize the failing case via Thread.join.
982	+	delay(millis);
983	+	for (Thread thread : threads)
984	+	assertTrue(thread.isAlive());
985	+	} catch (InterruptedException fail) {
986	+	threadFail("Unexpected InterruptedException");
987	+	}
988	+	}
989	+
990	+	/**
991	+	* Checks that future.get times out, with the default timeout of
992	+	* {@code timeoutMillis()}.
993	+	*/
994	+	void assertFutureTimesOut(Future future) {
995	+	assertFutureTimesOut(future, timeoutMillis());
996	+	}
997	+
998	+	/**
999	+	* Checks that future.get times out, with the given millisecond timeout.
1000	+	*/
1001	+	void assertFutureTimesOut(Future future, long timeoutMillis) {
1002	+	long startTime = System.nanoTime();
1003	+	try {
1004	+	future.get(timeoutMillis, MILLISECONDS);
1005	+	shouldThrow();
1006	+	} catch (TimeoutException success) {
1007	+	} catch (Exception fail) {
1008	+	threadUnexpectedException(fail);
1009	+	} finally { future.cancel(true); }
1010	+	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
1011	+	}
1012
1013		/**
1014		* Fails with message "should throw exception".
#	Line 416 | Line 1025 | public class JSR166TestCase extends Test
1025		}
1026
1027		/**
419	–	* Fails with message "Unexpected exception: " + ex.
420	–	*/
421	–	public void unexpectedException(Throwable ex) {
422	–	ex.printStackTrace();
423	–	fail("Unexpected exception: " + ex);
424	–	}
425	–
426	–
427	–	/**
1028		* The number of elements to place in collections, arrays, etc.
1029		*/
1030		public static final int SIZE = 20;
#	Line 449 | Line 1049 | public class JSR166TestCase extends Test
1049		public static final Integer m6  = new Integer(-6);
1050		public static final Integer m10 = new Integer(-10);
1051
452	–
1052		/**
1053		* Runs Runnable r with a security policy that permits precisely
1054		* the specified permissions.  If there is no current security
#	Line 461 | Line 1060 | public class JSR166TestCase extends Test
1060		SecurityManager sm = System.getSecurityManager();
1061		if (sm == null) {
1062		r.run();
1063	+	}
1064	+	runWithSecurityManagerWithPermissions(r, permissions);
1065	+	}
1066	+
1067	+	/**
1068	+	* Runs Runnable r with a security policy that permits precisely
1069	+	* the specified permissions.  If there is no current security
1070	+	* manager, a temporary one is set for the duration of the
1071	+	* Runnable.  We require that any security manager permit
1072	+	* getPolicy/setPolicy.
1073	+	*/
1074	+	public void runWithSecurityManagerWithPermissions(Runnable r,
1075	+	Permission... permissions) {
1076	+	SecurityManager sm = System.getSecurityManager();
1077	+	if (sm == null) {
1078		Policy savedPolicy = Policy.getPolicy();
1079		try {
1080		Policy.setPolicy(permissivePolicy());
1081		System.setSecurityManager(new SecurityManager());
1082	<	runWithPermissions(r, permissions);
1082	>	runWithSecurityManagerWithPermissions(r, permissions);
1083		} finally {
1084		System.setSecurityManager(null);
1085		Policy.setPolicy(savedPolicy);
#	Line 513 | Line 1127 | public class JSR166TestCase extends Test
1127		return perms.implies(p);
1128		}
1129		public void refresh() {}
1130	+	public String toString() {
1131	+	List<Permission> ps = new ArrayList<Permission>();
1132	+	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
1133	+	ps.add(e.nextElement());
1134	+	return "AdjustablePolicy with permissions " + ps;
1135	+	}
1136		}
1137
1138		/**
#	Line 535 | Line 1155 | public class JSR166TestCase extends Test
1155		}
1156
1157		/**
1158	<	* Sleep until the timeout has elapsed, or interrupted.
1159	<	* Does <em>NOT</em> throw InterruptedException.
1158	>	* Sleeps until the given time has elapsed.
1159	>	* Throws AssertionFailedError if interrupted.
1160		*/
1161	<	void sleepTillInterrupted(long timeoutMillis) {
1161	>	void sleep(long millis) {
1162		try {
1163	<	Thread.sleep(timeoutMillis);
1164	<	} catch (InterruptedException wakeup) {}
1163	>	delay(millis);
1164	>	} catch (InterruptedException fail) {
1165	>	AssertionFailedError afe =
1166	>	new AssertionFailedError("Unexpected InterruptedException");
1167	>	afe.initCause(fail);
1168	>	throw afe;
1169	>	}
1170	>	}
1171	>
1172	>	/**
1173	>	* Spin-waits up to the specified number of milliseconds for the given
1174	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1175	>	*/
1176	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1177	>	long startTime = System.nanoTime();
1178	>	for (;;) {
1179	>	Thread.State s = thread.getState();
1180	>	if (s == Thread.State.BLOCKED ||
1181	>	s == Thread.State.WAITING ||
1182	>	s == Thread.State.TIMED_WAITING)
1183	>	return;
1184	>	else if (s == Thread.State.TERMINATED)
1185	>	fail("Unexpected thread termination");
1186	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
1187	>	threadAssertTrue(thread.isAlive());
1188	>	return;
1189	>	}
1190	>	Thread.yield();
1191	>	}
1192	>	}
1193	>
1194	>	/**
1195	>	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
1196	>	* state: BLOCKED, WAITING, or TIMED_WAITING.
1197	>	*/
1198	>	void waitForThreadToEnterWaitState(Thread thread) {
1199	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
1200		}
1201
1202		/**
1203	<	* Returns a new started Thread running the given runnable.
1203	>	* Returns the number of milliseconds since time given by
1204	>	* startNanoTime, which must have been previously returned from a
1205	>	* call to {@link System#nanoTime()}.
1206	>	*/
1207	>	static long millisElapsedSince(long startNanoTime) {
1208	>	return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
1209	>	}
1210	>
1211	>	//     void assertTerminatesPromptly(long timeoutMillis, Runnable r) {
1212	>	//         long startTime = System.nanoTime();
1213	>	//         try {
1214	>	//             r.run();
1215	>	//         } catch (Throwable fail) { threadUnexpectedException(fail); }
1216	>	//         if (millisElapsedSince(startTime) > timeoutMillis/2)
1217	>	//             throw new AssertionFailedError("did not return promptly");
1218	>	//     }
1219	>
1220	>	//     void assertTerminatesPromptly(Runnable r) {
1221	>	//         assertTerminatesPromptly(LONG_DELAY_MS/2, r);
1222	>	//     }
1223	>
1224	>	/**
1225	>	* Checks that timed f.get() returns the expected value, and does not
1226	>	* wait for the timeout to elapse before returning.
1227	>	*/
1228	>	<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
1229	>	long startTime = System.nanoTime();
1230	>	try {
1231	>	assertEquals(expectedValue, f.get(timeoutMillis, MILLISECONDS));
1232	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
1233	>	if (millisElapsedSince(startTime) > timeoutMillis/2)
1234	>	throw new AssertionFailedError("timed get did not return promptly");
1235	>	}
1236	>
1237	>	<T> void checkTimedGet(Future<T> f, T expectedValue) {
1238	>	checkTimedGet(f, expectedValue, LONG_DELAY_MS);
1239	>	}
1240	>
1241	>	/**
1242	>	* Returns a new started daemon Thread running the given runnable.
1243		*/
1244		Thread newStartedThread(Runnable runnable) {
1245		Thread t = new Thread(runnable);
1246	+	t.setDaemon(true);
1247		t.start();
1248		return t;
1249		}
1250
1251	+	/**
1252	+	* Waits for the specified time (in milliseconds) for the thread
1253	+	* to terminate (using {@link Thread#join(long)}), else interrupts
1254	+	* the thread (in the hope that it may terminate later) and fails.
1255	+	*/
1256	+	void awaitTermination(Thread t, long timeoutMillis) {
1257	+	try {
1258	+	t.join(timeoutMillis);
1259	+	} catch (InterruptedException fail) {
1260	+	threadUnexpectedException(fail);
1261	+	} finally {
1262	+	if (t.getState() != Thread.State.TERMINATED) {
1263	+	t.interrupt();
1264	+	threadFail("timed out waiting for thread to terminate");
1265	+	}
1266	+	}
1267	+	}
1268	+
1269	+	/**
1270	+	* Waits for LONG_DELAY_MS milliseconds for the thread to
1271	+	* terminate (using {@link Thread#join(long)}), else interrupts
1272	+	* the thread (in the hope that it may terminate later) and fails.
1273	+	*/
1274	+	void awaitTermination(Thread t) {
1275	+	awaitTermination(t, LONG_DELAY_MS);
1276	+	}
1277	+
1278		// Some convenient Runnable classes
1279
1280		public abstract class CheckedRunnable implements Runnable {
#	Line 561 | Line 1283 | public class JSR166TestCase extends Test
1283		public final void run() {
1284		try {
1285		realRun();
1286	<	} catch (Throwable t) {
1287	<	threadUnexpectedException(t);
1286	>	} catch (Throwable fail) {
1287	>	threadUnexpectedException(fail);
1288		}
1289		}
1290		}
#	Line 615 | Line 1337 | public class JSR166TestCase extends Test
1337		realRun();
1338		threadShouldThrow("InterruptedException");
1339		} catch (InterruptedException success) {
1340	<	} catch (Throwable t) {
1341	<	threadUnexpectedException(t);
1340	>	threadAssertFalse(Thread.interrupted());
1341	>	} catch (Throwable fail) {
1342	>	threadUnexpectedException(fail);
1343		}
1344		}
1345		}
#	Line 627 | Line 1350 | public class JSR166TestCase extends Test
1350		public final T call() {
1351		try {
1352		return realCall();
1353	<	} catch (Throwable t) {
1354	<	threadUnexpectedException(t);
1353	>	} catch (Throwable fail) {
1354	>	threadUnexpectedException(fail);
1355		return null;
1356		}
1357		}
#	Line 644 | Line 1367 | public class JSR166TestCase extends Test
1367		threadShouldThrow("InterruptedException");
1368		return result;
1369		} catch (InterruptedException success) {
1370	<	} catch (Throwable t) {
1371	<	threadUnexpectedException(t);
1370	>	threadAssertFalse(Thread.interrupted());
1371	>	} catch (Throwable fail) {
1372	>	threadUnexpectedException(fail);
1373		}
1374		return null;
1375		}
#	Line 662 | Line 1386 | public class JSR166TestCase extends Test
1386		public static final String TEST_STRING = "a test string";
1387
1388		public static class StringTask implements Callable<String> {
1389	<	public String call() { return TEST_STRING; }
1389	>	final String value;
1390	>	public StringTask() { this(TEST_STRING); }
1391	>	public StringTask(String value) { this.value = value; }
1392	>	public String call() { return value; }
1393		}
1394
1395		public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
1396		return new CheckedCallable<String>() {
1397	<	public String realCall() {
1397	>	protected String realCall() {
1398		try {
1399		latch.await();
1400		} catch (InterruptedException quittingTime) {}
#	Line 675 | Line 1402 | public class JSR166TestCase extends Test
1402		}};
1403		}
1404
1405	+	public Runnable countDowner(final CountDownLatch latch) {
1406	+	return new CheckedRunnable() {
1407	+	public void realRun() throws InterruptedException {
1408	+	latch.countDown();
1409	+	}};
1410	+	}
1411	+
1412	+	class LatchAwaiter extends CheckedRunnable {
1413	+	static final int NEW = 0;
1414	+	static final int RUNNING = 1;
1415	+	static final int DONE = 2;
1416	+	final CountDownLatch latch;
1417	+	int state = NEW;
1418	+	LatchAwaiter(CountDownLatch latch) { this.latch = latch; }
1419	+	public void realRun() throws InterruptedException {
1420	+	state = 1;
1421	+	await(latch);
1422	+	state = 2;
1423	+	}
1424	+	}
1425	+
1426	+	public LatchAwaiter awaiter(CountDownLatch latch) {
1427	+	return new LatchAwaiter(latch);
1428	+	}
1429	+
1430	+	public void await(CountDownLatch latch) {
1431	+	try {
1432	+	if (!latch.await(LONG_DELAY_MS, MILLISECONDS))
1433	+	fail("timed out waiting for CountDownLatch for "
1434	+	+ (LONG_DELAY_MS/1000) + " sec");
1435	+	} catch (Throwable fail) {
1436	+	threadUnexpectedException(fail);
1437	+	}
1438	+	}
1439	+
1440	+	public void await(Semaphore semaphore) {
1441	+	try {
1442	+	if (!semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS))
1443	+	fail("timed out waiting for Semaphore for "
1444	+	+ (LONG_DELAY_MS/1000) + " sec");
1445	+	} catch (Throwable fail) {
1446	+	threadUnexpectedException(fail);
1447	+	}
1448	+	}
1449	+
1450	+	//     /**
1451	+	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1452	+	//      */
1453	+	//     public void await(AtomicBoolean flag) {
1454	+	//         await(flag, LONG_DELAY_MS);
1455	+	//     }
1456	+
1457	+	//     /**
1458	+	//      * Spin-waits up to the specified timeout until flag becomes true.
1459	+	//      */
1460	+	//     public void await(AtomicBoolean flag, long timeoutMillis) {
1461	+	//         long startTime = System.nanoTime();
1462	+	//         while (!flag.get()) {
1463	+	//             if (millisElapsedSince(startTime) > timeoutMillis)
1464	+	//                 throw new AssertionFailedError("timed out");
1465	+	//             Thread.yield();
1466	+	//         }
1467	+	//     }
1468	+
1469		public static class NPETask implements Callable<String> {
1470		public String call() { throw new NullPointerException(); }
1471		}
#	Line 685 | Line 1476 | public class JSR166TestCase extends Test
1476
1477		public class ShortRunnable extends CheckedRunnable {
1478		protected void realRun() throws Throwable {
1479	<	Thread.sleep(SHORT_DELAY_MS);
1479	>	delay(SHORT_DELAY_MS);
1480		}
1481		}
1482
1483		public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1484		protected void realRun() throws InterruptedException {
1485	<	Thread.sleep(SHORT_DELAY_MS);
1485	>	delay(SHORT_DELAY_MS);
1486		}
1487		}
1488
1489		public class SmallRunnable extends CheckedRunnable {
1490		protected void realRun() throws Throwable {
1491	<	Thread.sleep(SMALL_DELAY_MS);
1491	>	delay(SMALL_DELAY_MS);
1492		}
1493		}
1494
1495		public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1496		protected void realRun() {
1497		try {
1498	<	Thread.sleep(SMALL_DELAY_MS);
1498	>	delay(SMALL_DELAY_MS);
1499		} catch (InterruptedException ok) {}
1500		}
1501		}
1502
1503		public class SmallCallable extends CheckedCallable {
1504		protected Object realCall() throws InterruptedException {
1505	<	Thread.sleep(SMALL_DELAY_MS);
1505	>	delay(SMALL_DELAY_MS);
1506		return Boolean.TRUE;
1507		}
1508		}
1509
719	–	public class SmallInterruptedRunnable extends CheckedInterruptedRunnable {
720	–	protected void realRun() throws InterruptedException {
721	–	Thread.sleep(SMALL_DELAY_MS);
722	–	}
723	–	}
724	–
1510		public class MediumRunnable extends CheckedRunnable {
1511		protected void realRun() throws Throwable {
1512	<	Thread.sleep(MEDIUM_DELAY_MS);
1512	>	delay(MEDIUM_DELAY_MS);
1513		}
1514		}
1515
1516		public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1517		protected void realRun() throws InterruptedException {
1518	<	Thread.sleep(MEDIUM_DELAY_MS);
1518	>	delay(MEDIUM_DELAY_MS);
1519		}
1520		}
1521
1522	+	public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1523	+	return new CheckedRunnable() {
1524	+	protected void realRun() {
1525	+	try {
1526	+	delay(timeoutMillis);
1527	+	} catch (InterruptedException ok) {}
1528	+	}};
1529	+	}
1530	+
1531		public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1532		protected void realRun() {
1533		try {
1534	<	Thread.sleep(MEDIUM_DELAY_MS);
1534	>	delay(MEDIUM_DELAY_MS);
1535		} catch (InterruptedException ok) {}
1536		}
1537		}
#	Line 745 | Line 1539 | public class JSR166TestCase extends Test
1539		public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1540		protected void realRun() {
1541		try {
1542	<	Thread.sleep(LONG_DELAY_MS);
1542	>	delay(LONG_DELAY_MS);
1543		} catch (InterruptedException ok) {}
1544		}
1545		}
#	Line 759 | Line 1553 | public class JSR166TestCase extends Test
1553		}
1554		}
1555
1556	+	public interface TrackedRunnable extends Runnable {
1557	+	boolean isDone();
1558	+	}
1559	+
1560	+	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1561	+	return new TrackedRunnable() {
1562	+	private volatile boolean done = false;
1563	+	public boolean isDone() { return done; }
1564	+	public void run() {
1565	+	try {
1566	+	delay(timeoutMillis);
1567	+	done = true;
1568	+	} catch (InterruptedException ok) {}
1569	+	}
1570	+	};
1571	+	}
1572	+
1573		public static class TrackedShortRunnable implements Runnable {
1574		public volatile boolean done = false;
1575		public void run() {
1576		try {
1577	<	Thread.sleep(SMALL_DELAY_MS);
1577	>	delay(SHORT_DELAY_MS);
1578	>	done = true;
1579	>	} catch (InterruptedException ok) {}
1580	>	}
1581	>	}
1582	>
1583	>	public static class TrackedSmallRunnable implements Runnable {
1584	>	public volatile boolean done = false;
1585	>	public void run() {
1586	>	try {
1587	>	delay(SMALL_DELAY_MS);
1588		done = true;
1589		} catch (InterruptedException ok) {}
1590		}
#	Line 773 | Line 1594 | public class JSR166TestCase extends Test
1594		public volatile boolean done = false;
1595		public void run() {
1596		try {
1597	<	Thread.sleep(MEDIUM_DELAY_MS);
1597	>	delay(MEDIUM_DELAY_MS);
1598		done = true;
1599		} catch (InterruptedException ok) {}
1600		}
#	Line 783 | Line 1604 | public class JSR166TestCase extends Test
1604		public volatile boolean done = false;
1605		public void run() {
1606		try {
1607	<	Thread.sleep(LONG_DELAY_MS);
1607	>	delay(LONG_DELAY_MS);
1608		done = true;
1609		} catch (InterruptedException ok) {}
1610		}
#	Line 800 | Line 1621 | public class JSR166TestCase extends Test
1621		public volatile boolean done = false;
1622		public Object call() {
1623		try {
1624	<	Thread.sleep(SMALL_DELAY_MS);
1624	>	delay(SMALL_DELAY_MS);
1625		done = true;
1626		} catch (InterruptedException ok) {}
1627		return Boolean.TRUE;
#	Line 813 | Line 1634 | public class JSR166TestCase extends Test
1634		public abstract class CheckedRecursiveAction extends RecursiveAction {
1635		protected abstract void realCompute() throws Throwable;
1636
1637	<	public final void compute() {
1637	>	@Override protected final void compute() {
1638		try {
1639		realCompute();
1640	<	} catch (Throwable t) {
1641	<	threadUnexpectedException(t);
1640	>	} catch (Throwable fail) {
1641	>	threadUnexpectedException(fail);
1642		}
1643		}
1644		}
#	Line 828 | Line 1649 | public class JSR166TestCase extends Test
1649		public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1650		protected abstract T realCompute() throws Throwable;
1651
1652	<	public final T compute() {
1652	>	@Override protected final T compute() {
1653		try {
1654		return realCompute();
1655	<	} catch (Throwable t) {
1656	<	threadUnexpectedException(t);
1655	>	} catch (Throwable fail) {
1656	>	threadUnexpectedException(fail);
1657		return null;
1658		}
1659		}
#	Line 846 | Line 1667 | public class JSR166TestCase extends Test
1667		ThreadPoolExecutor executor) {}
1668		}
1669
1670	+	/**
1671	+	* A CyclicBarrier that uses timed await and fails with
1672	+	* AssertionFailedErrors instead of throwing checked exceptions.
1673	+	*/
1674	+	public class CheckedBarrier extends CyclicBarrier {
1675	+	public CheckedBarrier(int parties) { super(parties); }
1676	+
1677	+	public int await() {
1678	+	try {
1679	+	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1680	+	} catch (TimeoutException timedOut) {
1681	+	throw new AssertionFailedError("timed out");
1682	+	} catch (Exception fail) {
1683	+	AssertionFailedError afe =
1684	+	new AssertionFailedError("Unexpected exception: " + fail);
1685	+	afe.initCause(fail);
1686	+	throw afe;
1687	+	}
1688	+	}
1689	+	}
1690	+
1691	+	void checkEmpty(BlockingQueue q) {
1692	+	try {
1693	+	assertTrue(q.isEmpty());
1694	+	assertEquals(0, q.size());
1695	+	assertNull(q.peek());
1696	+	assertNull(q.poll());
1697	+	assertNull(q.poll(0, MILLISECONDS));
1698	+	assertEquals(q.toString(), "[]");
1699	+	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1700	+	assertFalse(q.iterator().hasNext());
1701	+	try {
1702	+	q.element();
1703	+	shouldThrow();
1704	+	} catch (NoSuchElementException success) {}
1705	+	try {
1706	+	q.iterator().next();
1707	+	shouldThrow();
1708	+	} catch (NoSuchElementException success) {}
1709	+	try {
1710	+	q.remove();
1711	+	shouldThrow();
1712	+	} catch (NoSuchElementException success) {}
1713	+	} catch (InterruptedException fail) { threadUnexpectedException(fail); }
1714	+	}
1715	+
1716	+	void assertSerialEquals(Object x, Object y) {
1717	+	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1718	+	}
1719	+
1720	+	void assertNotSerialEquals(Object x, Object y) {
1721	+	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1722	+	}
1723	+
1724	+	byte[] serialBytes(Object o) {
1725	+	try {
1726	+	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1727	+	ObjectOutputStream oos = new ObjectOutputStream(bos);
1728	+	oos.writeObject(o);
1729	+	oos.flush();
1730	+	oos.close();
1731	+	return bos.toByteArray();
1732	+	} catch (Throwable fail) {
1733	+	threadUnexpectedException(fail);
1734	+	return new byte[0];
1735	+	}
1736	+	}
1737	+
1738	+	@SuppressWarnings("unchecked")
1739	+	<T> T serialClone(T o) {
1740	+	try {
1741	+	ObjectInputStream ois = new ObjectInputStream
1742	+	(new ByteArrayInputStream(serialBytes(o)));
1743	+	T clone = (T) ois.readObject();
1744	+	assertSame(o.getClass(), clone.getClass());
1745	+	return clone;
1746	+	} catch (Throwable fail) {
1747	+	threadUnexpectedException(fail);
1748	+	return null;
1749	+	}
1750	+	}
1751	+
1752	+	public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1753	+	Runnable... throwingActions) {
1754	+	for (Runnable throwingAction : throwingActions) {
1755	+	boolean threw = false;
1756	+	try { throwingAction.run(); }
1757	+	catch (Throwable t) {
1758	+	threw = true;
1759	+	if (!expectedExceptionClass.isInstance(t)) {
1760	+	AssertionFailedError afe =
1761	+	new AssertionFailedError
1762	+	("Expected " + expectedExceptionClass.getName() +
1763	+	", got " + t.getClass().getName());
1764	+	afe.initCause(t);
1765	+	threadUnexpectedException(afe);
1766	+	}
1767	+	}
1768	+	if (!threw)
1769	+	shouldThrow(expectedExceptionClass.getName());
1770	+	}
1771	+	}
1772	+
1773	+	public void assertIteratorExhausted(Iterator<?> it) {
1774	+	try {
1775	+	it.next();
1776	+	shouldThrow();
1777	+	} catch (NoSuchElementException success) {}
1778	+	assertFalse(it.hasNext());
1779	+	}
1780		}

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