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Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.29 by dl, Sat Oct 1 17:05:38 2005 UTC vs.
Revision 1.169 by jsr166, Thu Oct 8 21:50:26 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.*;
11	<	import java.util.concurrent.*;
12	<	import java.io.*;
13	<	import java.security.*;
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.security.CodeSource;
24	>	import java.security.Permission;
25	>	import java.security.PermissionCollection;
26	>	import java.security.Permissions;
27	>	import java.security.Policy;
28	>	import java.security.ProtectionDomain;
29	>	import java.security.SecurityPermission;
30	>	import java.util.ArrayList;
31	>	import java.util.Arrays;
32	>	import java.util.Date;
33	>	import java.util.Enumeration;
34	>	import java.util.Iterator;
35	>	import java.util.List;
36	>	import java.util.NoSuchElementException;
37	>	import java.util.PropertyPermission;
38	>	import java.util.concurrent.BlockingQueue;
39	>	import java.util.concurrent.Callable;
40	>	import java.util.concurrent.CountDownLatch;
41	>	import java.util.concurrent.CyclicBarrier;
42	>	import java.util.concurrent.ExecutionException;
43	>	import java.util.concurrent.Executors;
44	>	import java.util.concurrent.ExecutorService;
45	>	import java.util.concurrent.ForkJoinPool;
46	>	import java.util.concurrent.Future;
47	>	import java.util.concurrent.RecursiveAction;
48	>	import java.util.concurrent.RecursiveTask;
49	>	import java.util.concurrent.RejectedExecutionHandler;
50	>	import java.util.concurrent.Semaphore;
51	>	import java.util.concurrent.ThreadFactory;
52	>	import java.util.concurrent.ThreadPoolExecutor;
53	>	import java.util.concurrent.TimeoutException;
54	>	import java.util.concurrent.atomic.AtomicReference;
55	>	import java.util.regex.Pattern;
56	>
57	>	import junit.framework.AssertionFailedError;
58	>	import junit.framework.Test;
59	>	import junit.framework.TestCase;
60	>	import junit.framework.TestResult;
61	>	import junit.framework.TestSuite;
62
63		/**
64		* Base class for JSR166 Junit TCK tests.  Defines some constants,
#	Line 22 | Line 70 | import java.security.*;
70		*
71		* <ol>
72		*
73	<	* <li> All assertions in code running in generated threads must use
73	>	* <li>All assertions in code running in generated threads must use
74		* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link
75		* #threadAssertEquals}, or {@link #threadAssertNull}, (not
76	<	* <tt>fail</tt>, <tt>assertTrue</tt>, etc.) It is OK (but not
76	>	* {@code fail}, {@code assertTrue}, etc.) It is OK (but not
77		* particularly recommended) for other code to use these forms too.
78		* Only the most typically used JUnit assertion methods are defined
79	<	* this way, but enough to live with.</li>
79	>	* this way, but enough to live with.
80		*
81	<	* <li> If you override {@link #setUp} or {@link #tearDown}, make sure
82	<	* to invoke <tt>super.setUp</tt> and <tt>super.tearDown</tt> within
81	>	* <li>If you override {@link #setUp} or {@link #tearDown}, make sure
82	>	* to invoke {@code super.setUp} and {@code super.tearDown} within
83		* them. These methods are used to clear and check for thread
84	<	* assertion failures.</li>
84	>	* assertion failures.
85		*
86	<	* <li>All delays and timeouts must use one of the constants <tt>
87	<	* SHORT_DELAY_MS</tt>, <tt> SMALL_DELAY_MS</tt>, <tt> MEDIUM_DELAY_MS</tt>,
88	<	* <tt> LONG_DELAY_MS</tt>. The idea here is that a SHORT is always
86	>	* <li>All delays and timeouts must use one of the constants {@code
87	>	* SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS},
88	>	* {@code LONG_DELAY_MS}. The idea here is that a SHORT is always
89		* discriminable from zero time, and always allows enough time for the
90		* small amounts of computation (creating a thread, calling a few
91		* methods, etc) needed to reach a timeout point. Similarly, a SMALL
92		* is always discriminable as larger than SHORT and smaller than
93		* MEDIUM.  And so on. These constants are set to conservative values,
94		* but even so, if there is ever any doubt, they can all be increased
95	<	* in one spot to rerun tests on slower platforms.</li>
95	>	* in one spot to rerun tests on slower platforms.
96		*
97	<	* <li> All threads generated must be joined inside each test case
98	<	* method (or <tt>fail</tt> to do so) before returning from the
99	<	* method. The <tt> joinPool</tt> method can be used to do this when
100	<	* using Executors.</li>
97	>	* <li>All threads generated must be joined inside each test case
98	>	* method (or {@code fail} to do so) before returning from the
99	>	* method. The {@code joinPool} method can be used to do this when
100	>	* using Executors.
101		*
102		* </ol>
103		*
104	<	* <p> <b>Other notes</b>
104	>	* <p><b>Other notes</b>
105		* <ul>
106		*
107	<	* <li> Usually, there is one testcase method per JSR166 method
107	>	* <li>Usually, there is one testcase method per JSR166 method
108		* covering "normal" operation, and then as many exception-testing
109		* methods as there are exceptions the method can throw. Sometimes
110		* there are multiple tests per JSR166 method when the different
111		* "normal" behaviors differ significantly. And sometimes testcases
112		* cover multiple methods when they cannot be tested in
113	<	* isolation.</li>
113	>	* isolation.
114		*
115	<	* <li> The documentation style for testcases is to provide as javadoc
115	>	* <li>The documentation style for testcases is to provide as javadoc
116		* a simple sentence or two describing the property that the testcase
117		* method purports to test. The javadocs do not say anything about how
118	<	* the property is tested. To find out, read the code.</li>
118	>	* the property is tested. To find out, read the code.
119		*
120	<	* <li> These tests are "conformance tests", and do not attempt to
120	>	* <li>These tests are "conformance tests", and do not attempt to
121		* test throughput, latency, scalability or other performance factors
122		* (see the separate "jtreg" tests for a set intended to check these
123		* for the most central aspects of functionality.) So, most tests use
124		* the smallest sensible numbers of threads, collection sizes, etc
125	<	* needed to check basic conformance.</li>
125	>	* needed to check basic conformance.
126		*
127		* <li>The test classes currently do not declare inclusion in
128		* any particular package to simplify things for people integrating
129	<	* them in TCK test suites.</li>
129	>	* them in TCK test suites.
130		*
131	<	* <li> As a convenience, the <tt>main</tt> of this class (JSR166TestCase)
132	<	* runs all JSR166 unit tests.</li>
131	>	* <li>As a convenience, the {@code main} of this class (JSR166TestCase)
132	>	* runs all JSR166 unit tests.
133		*
134		* </ul>
135		*/
136		public class JSR166TestCase extends TestCase {
137	+	private static final boolean useSecurityManager =
138	+	Boolean.getBoolean("jsr166.useSecurityManager");
139	+
140	+	protected static final boolean expensiveTests =
141	+	Boolean.getBoolean("jsr166.expensiveTests");
142	+
143		/**
144	<	* Runs all JSR166 unit tests using junit.textui.TestRunner
144	>	* If true, also run tests that are not part of the official tck
145	>	* because they test unspecified implementation details.
146		*/
147	<	public static void main (String[] args) {
148	<	int iters = 1;
149	<	if (args.length > 0)
150	<	iters = Integer.parseInt(args[0]);
151	<	Test s = suite();
152	<	for (int i = 0; i < iters; ++i) {
153	<	junit.textui.TestRunner.run (s);
154	<	System.gc();
155	<	System.runFinalization();
147	>	protected static final boolean testImplementationDetails =
148	>	Boolean.getBoolean("jsr166.testImplementationDetails");
149	>
150	>	/**
151	>	* If true, report on stdout all "slow" tests, that is, ones that
152	>	* take more than profileThreshold milliseconds to execute.
153	>	*/
154	>	private static final boolean profileTests =
155	>	Boolean.getBoolean("jsr166.profileTests");
156	>
157	>	/**
158	>	* The number of milliseconds that tests are permitted for
159	>	* execution without being reported, when profileTests is set.
160	>	*/
161	>	private static final long profileThreshold =
162	>	Long.getLong("jsr166.profileThreshold", 100);
163	>
164	>	/**
165	>	* The number of repetitions per test (for tickling rare bugs).
166	>	*/
167	>	private static final int runsPerTest =
168	>	Integer.getInteger("jsr166.runsPerTest", 1);
169	>
170	>	/**
171	>	* The number of repetitions of the test suite (for finding leaks?).
172	>	*/
173	>	private static final int suiteRuns =
174	>	Integer.getInteger("jsr166.suiteRuns", 1);
175	>
176	>	public JSR166TestCase() { super(); }
177	>	public JSR166TestCase(String name) { super(name); }
178	>
179	>	/**
180	>	* A filter for tests to run, matching strings of the form
181	>	* methodName(className), e.g. "testInvokeAll5(ForkJoinPoolTest)"
182	>	* Usefully combined with jsr166.runsPerTest.
183	>	*/
184	>	private static final Pattern methodFilter = methodFilter();
185	>
186	>	private static Pattern methodFilter() {
187	>	String regex = System.getProperty("jsr166.methodFilter");
188	>	return (regex == null) ? null : Pattern.compile(regex);
189	>	}
190	>
191	>	static volatile TestCase currentTestCase;
192	>	static {
193	>	Runnable checkForWedgedTest = new Runnable() { public void run() {
194	>	// avoid spurious reports with enormous runsPerTest
195	>	final int timeoutMinutes = Math.max(runsPerTest / 10, 1);
196	>	for (TestCase lastTestCase = currentTestCase;;) {
197	>	try { MINUTES.sleep(timeoutMinutes); }
198	>	catch (InterruptedException unexpected) { break; }
199	>	if (lastTestCase == currentTestCase) {
200	>	System.err.println
201	>	("Looks like we're stuck running test: "
202	>	+ lastTestCase);
203	>	System.err.println("availableProcessors=" +
204	>	Runtime.getRuntime().availableProcessors());
205	>	dumpTestThreads();
206	>	// one stack dump is probably enough; more would be spam
207	>	break;
208	>	}
209	>	lastTestCase = currentTestCase;
210	>	}}};
211	>	Thread thread = new Thread(checkForWedgedTest, "checkForWedgedTest");
212	>	thread.setDaemon(true);
213	>	thread.start();
214	>	}
215	>
216	>	public void runBare() throws Throwable {
217	>	currentTestCase = this;
218	>	if (methodFilter == null
219	>	|| methodFilter.matcher(toString()).find())
220	>	super.runBare();
221	>	}
222	>
223	>	protected void runTest() throws Throwable {
224	>	for (int i = 0; i < runsPerTest; i++) {
225	>	if (profileTests)
226	>	runTestProfiled();
227	>	else
228	>	super.runTest();
229	>	}
230	>	}
231	>
232	>	protected void runTestProfiled() throws Throwable {
233	>	for (int i = 0; i < 2; i++) {
234	>	long startTime = System.nanoTime();
235	>	super.runTest();
236	>	long elapsedMillis = millisElapsedSince(startTime);
237	>	if (elapsedMillis < profileThreshold)
238	>	break;
239	>	// Never report first run of any test; treat it as a
240	>	// warmup run, notably to trigger all needed classloading,
241	>	if (i > 0)
242	>	System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
243		}
102	–	System.exit(0);
244		}
245
246		/**
247	<	* Collects all JSR166 unit tests as one suite
247	>	* Runs all JSR166 unit tests using junit.textui.TestRunner.
248		*/
249	<	public static Test suite ( ) {
250	<	TestSuite suite = new TestSuite("JSR166 Unit Tests");
249	>	public static void main(String[] args) {
250	>	main(suite(), args);
251	>	}
252
253	<	suite.addTest(new TestSuite(AbstractExecutorServiceTest.class));
254	<	suite.addTest(new TestSuite(AbstractQueueTest.class));
255	<	suite.addTest(new TestSuite(AbstractQueuedSynchronizerTest.class));
256	<	suite.addTest(new TestSuite(AbstractQueuedLongSynchronizerTest.class));
257	<	suite.addTest(new TestSuite(ArrayBlockingQueueTest.class));
258	<	suite.addTest(new TestSuite(ArrayDequeTest.class));
259	<	suite.addTest(new TestSuite(AtomicBooleanTest.class));
260	<	suite.addTest(new TestSuite(AtomicIntegerArrayTest.class));
261	<	suite.addTest(new TestSuite(AtomicIntegerFieldUpdaterTest.class));
262	<	suite.addTest(new TestSuite(AtomicIntegerTest.class));
263	<	suite.addTest(new TestSuite(AtomicLongArrayTest.class));
264	<	suite.addTest(new TestSuite(AtomicLongFieldUpdaterTest.class));
265	<	suite.addTest(new TestSuite(AtomicLongTest.class));
266	<	suite.addTest(new TestSuite(AtomicMarkableReferenceTest.class));
267	<	suite.addTest(new TestSuite(AtomicReferenceArrayTest.class));
268	<	suite.addTest(new TestSuite(AtomicReferenceFieldUpdaterTest.class));
269	<	suite.addTest(new TestSuite(AtomicReferenceTest.class));
270	<	suite.addTest(new TestSuite(AtomicStampedReferenceTest.class));
129	<	suite.addTest(new TestSuite(ConcurrentHashMapTest.class));
130	<	suite.addTest(new TestSuite(ConcurrentLinkedQueueTest.class));
131	<	suite.addTest(new TestSuite(ConcurrentSkipListMapTest.class));
132	<	suite.addTest(new TestSuite(ConcurrentSkipListSubMapTest.class));
133	<	suite.addTest(new TestSuite(ConcurrentSkipListSetTest.class));
134	<	suite.addTest(new TestSuite(ConcurrentSkipListSubSetTest.class));
135	<	suite.addTest(new TestSuite(CopyOnWriteArrayListTest.class));
136	<	suite.addTest(new TestSuite(CopyOnWriteArraySetTest.class));
137	<	suite.addTest(new TestSuite(CountDownLatchTest.class));
138	<	suite.addTest(new TestSuite(CyclicBarrierTest.class));
139	<	suite.addTest(new TestSuite(DelayQueueTest.class));
140	<	suite.addTest(new TestSuite(EntryTest.class));
141	<	suite.addTest(new TestSuite(ExchangerTest.class));
142	<	suite.addTest(new TestSuite(ExecutorsTest.class));
143	<	suite.addTest(new TestSuite(ExecutorCompletionServiceTest.class));
144	<	suite.addTest(new TestSuite(FutureTaskTest.class));
145	<	suite.addTest(new TestSuite(LinkedBlockingDequeTest.class));
146	<	suite.addTest(new TestSuite(LinkedBlockingQueueTest.class));
147	<	suite.addTest(new TestSuite(LinkedListTest.class));
148	<	suite.addTest(new TestSuite(LockSupportTest.class));
149	<	suite.addTest(new TestSuite(PriorityBlockingQueueTest.class));
150	<	suite.addTest(new TestSuite(PriorityQueueTest.class));
151	<	suite.addTest(new TestSuite(ReentrantLockTest.class));
152	<	suite.addTest(new TestSuite(ReentrantReadWriteLockTest.class));
153	<	suite.addTest(new TestSuite(ScheduledExecutorTest.class));
154	<	suite.addTest(new TestSuite(ScheduledExecutorSubclassTest.class));
155	<	suite.addTest(new TestSuite(SemaphoreTest.class));
156	<	suite.addTest(new TestSuite(SynchronousQueueTest.class));
157	<	suite.addTest(new TestSuite(SystemTest.class));
158	<	suite.addTest(new TestSuite(ThreadLocalTest.class));
159	<	suite.addTest(new TestSuite(ThreadPoolExecutorTest.class));
160	<	suite.addTest(new TestSuite(ThreadPoolExecutorSubclassTest.class));
161	<	suite.addTest(new TestSuite(ThreadTest.class));
162	<	suite.addTest(new TestSuite(TimeUnitTest.class));
163	<	suite.addTest(new TestSuite(TreeMapTest.class));
164	<	suite.addTest(new TestSuite(TreeSetTest.class));
165	<	suite.addTest(new TestSuite(TreeSubMapTest.class));
166	<	suite.addTest(new TestSuite(TreeSubSetTest.class));
253	>	/**
254	>	* Runs all unit tests in the given test suite.
255	>	* Actual behavior influenced by jsr166.* system properties.
256	>	*/
257	>	static void main(Test suite, String[] args) {
258	>	if (useSecurityManager) {
259	>	System.err.println("Setting a permissive security manager");
260	>	Policy.setPolicy(permissivePolicy());
261	>	System.setSecurityManager(new SecurityManager());
262	>	}
263	>	for (int i = 0; i < suiteRuns; i++) {
264	>	TestResult result = junit.textui.TestRunner.run(suite);
265	>	if (!result.wasSuccessful())
266	>	System.exit(1);
267	>	System.gc();
268	>	System.runFinalization();
269	>	}
270	>	}
271
272	+	public static TestSuite newTestSuite(Object... suiteOrClasses) {
273	+	TestSuite suite = new TestSuite();
274	+	for (Object suiteOrClass : suiteOrClasses) {
275	+	if (suiteOrClass instanceof TestSuite)
276	+	suite.addTest((TestSuite) suiteOrClass);
277	+	else if (suiteOrClass instanceof Class)
278	+	suite.addTest(new TestSuite((Class<?>) suiteOrClass));
279	+	else
280	+	throw new ClassCastException("not a test suite or class");
281	+	}
282		return suite;
283		}
284
285	+	public static void addNamedTestClasses(TestSuite suite,
286	+	String... testClassNames) {
287	+	for (String testClassName : testClassNames) {
288	+	try {
289	+	Class<?> testClass = Class.forName(testClassName);
290	+	Method m = testClass.getDeclaredMethod("suite",
291	+	new Class<?>[0]);
292	+	suite.addTest(newTestSuite((Test)m.invoke(null)));
293	+	} catch (Exception e) {
294	+	throw new Error("Missing test class", e);
295	+	}
296	+	}
297	+	}
298	+
299	+	public static final double JAVA_CLASS_VERSION;
300	+	public static final String JAVA_SPECIFICATION_VERSION;
301	+	static {
302	+	try {
303	+	JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
304	+	new java.security.PrivilegedAction<Double>() {
305	+	public Double run() {
306	+	return Double.valueOf(System.getProperty("java.class.version"));}});
307	+	JAVA_SPECIFICATION_VERSION = java.security.AccessController.doPrivileged(
308	+	new java.security.PrivilegedAction<String>() {
309	+	public String run() {
310	+	return System.getProperty("java.specification.version");}});
311	+	} catch (Throwable t) {
312	+	throw new Error(t);
313	+	}
314	+	}
315	+
316	+	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
317	+	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
318	+	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
319	+	public static boolean atLeastJava9() {
320	+	return JAVA_CLASS_VERSION >= 53.0
321	+	// As of 2015-09, java9 still uses 52.0 class file version
322	+	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?(9|[0-9][0-9])$");
323	+	}
324	+	public static boolean atLeastJava10() {
325	+	return JAVA_CLASS_VERSION >= 54.0
326	+	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?[0-9][0-9]$");
327	+	}
328	+
329	+	/**
330	+	* Collects all JSR166 unit tests as one suite.
331	+	*/
332	+	public static Test suite() {
333	+	// Java7+ test classes
334	+	TestSuite suite = newTestSuite(
335	+	ForkJoinPoolTest.suite(),
336	+	ForkJoinTaskTest.suite(),
337	+	RecursiveActionTest.suite(),
338	+	RecursiveTaskTest.suite(),
339	+	LinkedTransferQueueTest.suite(),
340	+	PhaserTest.suite(),
341	+	ThreadLocalRandomTest.suite(),
342	+	AbstractExecutorServiceTest.suite(),
343	+	AbstractQueueTest.suite(),
344	+	AbstractQueuedSynchronizerTest.suite(),
345	+	AbstractQueuedLongSynchronizerTest.suite(),
346	+	ArrayBlockingQueueTest.suite(),
347	+	ArrayDequeTest.suite(),
348	+	AtomicBooleanTest.suite(),
349	+	AtomicIntegerArrayTest.suite(),
350	+	AtomicIntegerFieldUpdaterTest.suite(),
351	+	AtomicIntegerTest.suite(),
352	+	AtomicLongArrayTest.suite(),
353	+	AtomicLongFieldUpdaterTest.suite(),
354	+	AtomicLongTest.suite(),
355	+	AtomicMarkableReferenceTest.suite(),
356	+	AtomicReferenceArrayTest.suite(),
357	+	AtomicReferenceFieldUpdaterTest.suite(),
358	+	AtomicReferenceTest.suite(),
359	+	AtomicStampedReferenceTest.suite(),
360	+	ConcurrentHashMapTest.suite(),
361	+	ConcurrentLinkedDequeTest.suite(),
362	+	ConcurrentLinkedQueueTest.suite(),
363	+	ConcurrentSkipListMapTest.suite(),
364	+	ConcurrentSkipListSubMapTest.suite(),
365	+	ConcurrentSkipListSetTest.suite(),
366	+	ConcurrentSkipListSubSetTest.suite(),
367	+	CopyOnWriteArrayListTest.suite(),
368	+	CopyOnWriteArraySetTest.suite(),
369	+	CountDownLatchTest.suite(),
370	+	CyclicBarrierTest.suite(),
371	+	DelayQueueTest.suite(),
372	+	EntryTest.suite(),
373	+	ExchangerTest.suite(),
374	+	ExecutorsTest.suite(),
375	+	ExecutorCompletionServiceTest.suite(),
376	+	FutureTaskTest.suite(),
377	+	LinkedBlockingDequeTest.suite(),
378	+	LinkedBlockingQueueTest.suite(),
379	+	LinkedListTest.suite(),
380	+	LockSupportTest.suite(),
381	+	PriorityBlockingQueueTest.suite(),
382	+	PriorityQueueTest.suite(),
383	+	ReentrantLockTest.suite(),
384	+	ReentrantReadWriteLockTest.suite(),
385	+	ScheduledExecutorTest.suite(),
386	+	ScheduledExecutorSubclassTest.suite(),
387	+	SemaphoreTest.suite(),
388	+	SynchronousQueueTest.suite(),
389	+	SystemTest.suite(),
390	+	ThreadLocalTest.suite(),
391	+	ThreadPoolExecutorTest.suite(),
392	+	ThreadPoolExecutorSubclassTest.suite(),
393	+	ThreadTest.suite(),
394	+	TimeUnitTest.suite(),
395	+	TreeMapTest.suite(),
396	+	TreeSetTest.suite(),
397	+	TreeSubMapTest.suite(),
398	+	TreeSubSetTest.suite());
399	+
400	+	// Java8+ test classes
401	+	if (atLeastJava8()) {
402	+	String[] java8TestClassNames = {
403	+	"Atomic8Test",
404	+	"CompletableFutureTest",
405	+	"ConcurrentHashMap8Test",
406	+	"CountedCompleterTest",
407	+	"DoubleAccumulatorTest",
408	+	"DoubleAdderTest",
409	+	"ForkJoinPool8Test",
410	+	"ForkJoinTask8Test",
411	+	"LongAccumulatorTest",
412	+	"LongAdderTest",
413	+	"SplittableRandomTest",
414	+	"StampedLockTest",
415	+	"SubmissionPublisherTest",
416	+	"ThreadLocalRandom8Test",
417	+	};
418	+	addNamedTestClasses(suite, java8TestClassNames);
419	+	}
420	+
421	+	// Java9+ test classes
422	+	if (atLeastJava9()) {
423	+	String[] java9TestClassNames = {
424	+	// Currently empty, but expecting varhandle tests
425	+	};
426	+	addNamedTestClasses(suite, java9TestClassNames);
427	+	}
428	+
429	+	return suite;
430	+	}
431	+
432	+	/** Returns list of junit-style test method names in given class. */
433	+	public static ArrayList<String> testMethodNames(Class<?> testClass) {
434	+	Method[] methods = testClass.getDeclaredMethods();
435	+	ArrayList<String> names = new ArrayList<String>(methods.length);
436	+	for (Method method : methods) {
437	+	if (method.getName().startsWith("test")
438	+	&& Modifier.isPublic(method.getModifiers())
439	+	// method.getParameterCount() requires jdk8+
440	+	&& method.getParameterTypes().length == 0) {
441	+	names.add(method.getName());
442	+	}
443	+	}
444	+	return names;
445	+	}
446	+
447	+	/**
448	+	* Returns junit-style testSuite for the given test class, but
449	+	* parameterized by passing extra data to each test.
450	+	*/
451	+	public static <ExtraData> Test parameterizedTestSuite
452	+	(Class<? extends JSR166TestCase> testClass,
453	+	Class<ExtraData> dataClass,
454	+	ExtraData data) {
455	+	try {
456	+	TestSuite suite = new TestSuite();
457	+	Constructor c =
458	+	testClass.getDeclaredConstructor(dataClass, String.class);
459	+	for (String methodName : testMethodNames(testClass))
460	+	suite.addTest((Test) c.newInstance(data, methodName));
461	+	return suite;
462	+	} catch (Exception e) {
463	+	throw new Error(e);
464	+	}
465	+	}
466	+
467	+	/**
468	+	* Returns junit-style testSuite for the jdk8 extension of the
469	+	* given test class, but parameterized by passing extra data to
470	+	* each test.  Uses reflection to allow compilation in jdk7.
471	+	*/
472	+	public static <ExtraData> Test jdk8ParameterizedTestSuite
473	+	(Class<? extends JSR166TestCase> testClass,
474	+	Class<ExtraData> dataClass,
475	+	ExtraData data) {
476	+	if (atLeastJava8()) {
477	+	String name = testClass.getName();
478	+	String name8 = name.replaceAll("Test$", "8Test");
479	+	if (name.equals(name8)) throw new Error(name);
480	+	try {
481	+	return (Test)
482	+	Class.forName(name8)
483	+	.getMethod("testSuite", new Class[] { dataClass })
484	+	.invoke(null, data);
485	+	} catch (Exception e) {
486	+	throw new Error(e);
487	+	}
488	+	} else {
489	+	return new TestSuite();
490	+	}
491	+	}
492	+
493	+	// Delays for timing-dependent tests, in milliseconds.
494
495		public static long SHORT_DELAY_MS;
496		public static long SMALL_DELAY_MS;
497		public static long MEDIUM_DELAY_MS;
498		public static long LONG_DELAY_MS;
499
177	–
500		/**
501		* Returns the shortest timed delay. This could
502		* be reimplemented to use for example a Property.
#	Line 183 | Line 505 | public class JSR166TestCase extends Test
505		return 50;
506		}
507
186	–
508		/**
509		* Sets delays as multiples of SHORT_DELAY.
510		*/
511	<	protected  void setDelays() {
511	>	protected void setDelays() {
512		SHORT_DELAY_MS = getShortDelay();
513	<	SMALL_DELAY_MS = SHORT_DELAY_MS * 5;
513	>	SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
514		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
515	<	LONG_DELAY_MS = SHORT_DELAY_MS * 50;
515	>	LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
516		}
517
518		/**
519	<	* Flag set true if any threadAssert methods fail
519	>	* Returns a timeout in milliseconds to be used in tests that
520	>	* verify that operations block or time out.
521		*/
522	<	volatile boolean threadFailed;
522	>	long timeoutMillis() {
523	>	return SHORT_DELAY_MS / 4;
524	>	}
525
526		/**
527	<	* Initializes test to indicate that no thread assertions have failed
527	>	* Returns a new Date instance representing a time at least
528	>	* delayMillis milliseconds in the future.
529		*/
530	+	Date delayedDate(long delayMillis) {
531	+	// Add 1 because currentTimeMillis is known to round into the past.
532	+	return new Date(System.currentTimeMillis() + delayMillis + 1);
533	+	}
534	+
535	+	/**
536	+	* The first exception encountered if any threadAssertXXX method fails.
537	+	*/
538	+	private final AtomicReference<Throwable> threadFailure
539	+	= new AtomicReference<Throwable>(null);
540	+
541	+	/**
542	+	* Records an exception so that it can be rethrown later in the test
543	+	* harness thread, triggering a test case failure.  Only the first
544	+	* failure is recorded; subsequent calls to this method from within
545	+	* the same test have no effect.
546	+	*/
547	+	public void threadRecordFailure(Throwable t) {
548	+	System.err.println(t);
549	+	dumpTestThreads();
550	+	threadFailure.compareAndSet(null, t);
551	+	}
552	+
553		public void setUp() {
554		setDelays();
555	<	threadFailed = false;
555	>	}
556	>
557	>	void tearDownFail(String format, Object... args) {
558	>	String msg = toString() + ": " + String.format(format, args);
559	>	System.err.println(msg);
560	>	dumpTestThreads();
561	>	throw new AssertionFailedError(msg);
562		}
563
564		/**
565	<	* Triggers test case failure if any thread assertions have failed
565	>	* Extra checks that get done for all test cases.
566	>	*
567	>	* Triggers test case failure if any thread assertions have failed,
568	>	* by rethrowing, in the test harness thread, any exception recorded
569	>	* earlier by threadRecordFailure.
570	>	*
571	>	* Triggers test case failure if interrupt status is set in the main thread.
572		*/
573	<	public void tearDown() {
574	<	assertFalse(threadFailed);
573	>	public void tearDown() throws Exception {
574	>	Throwable t = threadFailure.getAndSet(null);
575	>	if (t != null) {
576	>	if (t instanceof Error)
577	>	throw (Error) t;
578	>	else if (t instanceof RuntimeException)
579	>	throw (RuntimeException) t;
580	>	else if (t instanceof Exception)
581	>	throw (Exception) t;
582	>	else {
583	>	AssertionFailedError afe =
584	>	new AssertionFailedError(t.toString());
585	>	afe.initCause(t);
586	>	throw afe;
587	>	}
588	>	}
589	>
590	>	if (Thread.interrupted())
591	>	tearDownFail("interrupt status set in main thread");
592	>
593	>	checkForkJoinPoolThreadLeaks();
594		}
595
596		/**
597	<	* Fail, also setting status to indicate current testcase should fail
597	>	* Finds missing PoolCleaners
598	>	*/
599	>	void checkForkJoinPoolThreadLeaks() throws InterruptedException {
600	>	Thread[] survivors = new Thread[7];
601	>	int count = Thread.enumerate(survivors);
602	>	for (int i = 0; i < count; i++) {
603	>	Thread thread = survivors[i];
604	>	String name = thread.getName();
605	>	if (name.startsWith("ForkJoinPool-")) {
606	>	// give thread some time to terminate
607	>	thread.join(LONG_DELAY_MS);
608	>	if (thread.isAlive())
609	>	tearDownFail("Found leaked ForkJoinPool thread thread=%s",
610	>	thread);
611	>	}
612	>	}
613	>
614	>	if (!ForkJoinPool.commonPool()
615	>	.awaitQuiescence(LONG_DELAY_MS, MILLISECONDS))
616	>	tearDownFail("ForkJoin common pool thread stuck");
617	>	}
618	>
619	>	/**
620	>	* Just like fail(reason), but additionally recording (using
621	>	* threadRecordFailure) any AssertionFailedError thrown, so that
622	>	* the current testcase will fail.
623		*/
624		public void threadFail(String reason) {
625	<	threadFailed = true;
626	<	fail(reason);
625	>	try {
626	>	fail(reason);
627	>	} catch (AssertionFailedError t) {
628	>	threadRecordFailure(t);
629	>	throw t;
630	>	}
631		}
632
633		/**
634	<	* If expression not true, set status to indicate current testcase
635	<	* should fail
634	>	* Just like assertTrue(b), but additionally recording (using
635	>	* threadRecordFailure) any AssertionFailedError thrown, so that
636	>	* the current testcase will fail.
637		*/
638		public void threadAssertTrue(boolean b) {
639	<	if (!b) {
231	<	threadFailed = true;
639	>	try {
640		assertTrue(b);
641	+	} catch (AssertionFailedError t) {
642	+	threadRecordFailure(t);
643	+	throw t;
644		}
645		}
646
647		/**
648	<	* If expression not false, set status to indicate current testcase
649	<	* should fail
648	>	* Just like assertFalse(b), but additionally recording (using
649	>	* threadRecordFailure) any AssertionFailedError thrown, so that
650	>	* the current testcase will fail.
651		*/
652		public void threadAssertFalse(boolean b) {
653	<	if (b) {
242	<	threadFailed = true;
653	>	try {
654		assertFalse(b);
655	+	} catch (AssertionFailedError t) {
656	+	threadRecordFailure(t);
657	+	throw t;
658		}
659		}
660
661		/**
662	<	* If argument not null, set status to indicate current testcase
663	<	* should fail
662	>	* Just like assertNull(x), but additionally recording (using
663	>	* threadRecordFailure) any AssertionFailedError thrown, so that
664	>	* the current testcase will fail.
665		*/
666		public void threadAssertNull(Object x) {
667	<	if (x != null) {
253	<	threadFailed = true;
667	>	try {
668		assertNull(x);
669	+	} catch (AssertionFailedError t) {
670	+	threadRecordFailure(t);
671	+	throw t;
672		}
673		}
674
675		/**
676	<	* If arguments not equal, set status to indicate current testcase
677	<	* should fail
676	>	* Just like assertEquals(x, y), but additionally recording (using
677	>	* threadRecordFailure) any AssertionFailedError thrown, so that
678	>	* the current testcase will fail.
679		*/
680		public void threadAssertEquals(long x, long y) {
681	<	if (x != y) {
264	<	threadFailed = true;
681	>	try {
682		assertEquals(x, y);
683	+	} catch (AssertionFailedError t) {
684	+	threadRecordFailure(t);
685	+	throw t;
686		}
687		}
688
689		/**
690	<	* If arguments not equal, set status to indicate current testcase
691	<	* should fail
690	>	* Just like assertEquals(x, y), but additionally recording (using
691	>	* threadRecordFailure) any AssertionFailedError thrown, so that
692	>	* the current testcase will fail.
693		*/
694		public void threadAssertEquals(Object x, Object y) {
695	<	if (x != y && (x == null || !x.equals(y))) {
275	<	threadFailed = true;
695	>	try {
696		assertEquals(x, y);
697	+	} catch (AssertionFailedError fail) {
698	+	threadRecordFailure(fail);
699	+	throw fail;
700	+	} catch (Throwable fail) {
701	+	threadUnexpectedException(fail);
702	+	}
703	+	}
704	+
705	+	/**
706	+	* Just like assertSame(x, y), but additionally recording (using
707	+	* threadRecordFailure) any AssertionFailedError thrown, so that
708	+	* the current testcase will fail.
709	+	*/
710	+	public void threadAssertSame(Object x, Object y) {
711	+	try {
712	+	assertSame(x, y);
713	+	} catch (AssertionFailedError fail) {
714	+	threadRecordFailure(fail);
715	+	throw fail;
716		}
717		}
718
719		/**
720	<	* threadFail with message "should throw exception"
720	>	* Calls threadFail with message "should throw exception".
721		*/
722		public void threadShouldThrow() {
723	<	threadFailed = true;
724	<	fail("should throw exception");
723	>	threadFail("should throw exception");
724	>	}
725	>
726	>	/**
727	>	* Calls threadFail with message "should throw" + exceptionName.
728	>	*/
729	>	public void threadShouldThrow(String exceptionName) {
730	>	threadFail("should throw " + exceptionName);
731	>	}
732	>
733	>	/**
734	>	* Records the given exception using {@link #threadRecordFailure},
735	>	* then rethrows the exception, wrapping it in an
736	>	* AssertionFailedError if necessary.
737	>	*/
738	>	public void threadUnexpectedException(Throwable t) {
739	>	threadRecordFailure(t);
740	>	t.printStackTrace();
741	>	if (t instanceof RuntimeException)
742	>	throw (RuntimeException) t;
743	>	else if (t instanceof Error)
744	>	throw (Error) t;
745	>	else {
746	>	AssertionFailedError afe =
747	>	new AssertionFailedError("unexpected exception: " + t);
748	>	afe.initCause(t);
749	>	throw afe;
750	>	}
751		}
752
753		/**
754	<	* threadFail with message "Unexpected exception"
754	>	* Delays, via Thread.sleep, for the given millisecond delay, but
755	>	* if the sleep is shorter than specified, may re-sleep or yield
756	>	* until time elapses.  Ensures that the given time, as measured
757	>	* by System.nanoTime(), has elapsed.
758		*/
759	<	public void threadUnexpectedException() {
760	<	threadFailed = true;
761	<	fail("Unexpected exception");
759	>	static void delay(long millis) throws InterruptedException {
760	>	long nanos = millis * (1000 * 1000);
761	>	final long wakeupTime = System.nanoTime() + nanos;
762	>	do {
763	>	if (millis > 0L)
764	>	Thread.sleep(millis);
765	>	else // too short to sleep
766	>	Thread.yield();
767	>	nanos = wakeupTime - System.nanoTime();
768	>	millis = nanos / (1000 * 1000);
769	>	} while (nanos >= 0L);
770		}
771
772	+	/**
773	+	* Allows use of try-with-resources with per-test thread pools.
774	+	*/
775	+	class PoolCleaner implements AutoCloseable {
776	+	private final ExecutorService pool;
777	+	public PoolCleaner(ExecutorService pool) { this.pool = pool; }
778	+	public void close() { joinPool(pool); }
779	+	}
780
781		/**
782	<	* Wait out termination of a thread pool or fail doing so
782	>	* An extension of PoolCleaner that has an action to release the pool.
783		*/
784	<	public void joinPool(ExecutorService exec) {
784	>	class PoolCleanerWithReleaser extends PoolCleaner {
785	>	private final Runnable releaser;
786	>	public PoolCleanerWithReleaser(ExecutorService pool, Runnable releaser) {
787	>	super(pool);
788	>	this.releaser = releaser;
789	>	}
790	>	public void close() {
791	>	try {
792	>	releaser.run();
793	>	} finally {
794	>	super.close();
795	>	}
796	>	}
797	>	}
798	>
799	>	PoolCleaner cleaner(ExecutorService pool) {
800	>	return new PoolCleaner(pool);
801	>	}
802	>
803	>	PoolCleaner cleaner(ExecutorService pool, Runnable releaser) {
804	>	return new PoolCleanerWithReleaser(pool, releaser);
805	>	}
806	>
807	>	PoolCleaner cleaner(ExecutorService pool, CountDownLatch latch) {
808	>	return new PoolCleanerWithReleaser(pool, releaser(latch));
809	>	}
810	>
811	>	Runnable releaser(final CountDownLatch latch) {
812	>	return new Runnable() { public void run() {
813	>	do { latch.countDown(); }
814	>	while (latch.getCount() > 0);
815	>	}};
816	>	}
817	>
818	>	/**
819	>	* Waits out termination of a thread pool or fails doing so.
820	>	*/
821	>	void joinPool(ExecutorService pool) {
822		try {
823	<	exec.shutdown();
824	<	assertTrue(exec.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
825	<	} catch(SecurityException ok) {
823	>	pool.shutdown();
824	>	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)) {
825	>	try {
826	>	threadFail("ExecutorService " + pool +
827	>	" did not terminate in a timely manner");
828	>	} finally {
829	>	// last resort, for the benefit of subsequent tests
830	>	pool.shutdownNow();
831	>	pool.awaitTermination(MEDIUM_DELAY_MS, MILLISECONDS);
832	>	}
833	>	}
834	>	} catch (SecurityException ok) {
835		// Allowed in case test doesn't have privs
836	<	} catch(InterruptedException ie) {
837	<	fail("Unexpected exception");
836	>	} catch (InterruptedException fail) {
837	>	threadFail("Unexpected InterruptedException");
838	>	}
839	>	}
840	>
841	>	/** Like Runnable, but with the freedom to throw anything */
842	>	interface Action { public void run() throws Throwable; }
843	>
844	>	/**
845	>	* Runs all the given actions in parallel, failing if any fail.
846	>	* Useful for running multiple variants of tests that are
847	>	* necessarily individually slow because they must block.
848	>	*/
849	>	void testInParallel(Action ... actions) {
850	>	ExecutorService pool = Executors.newCachedThreadPool();
851	>	try (PoolCleaner cleaner = cleaner(pool)) {
852	>	ArrayList<Future<?>> futures = new ArrayList<>(actions.length);
853	>	for (final Action action : actions)
854	>	futures.add(pool.submit(new CheckedRunnable() {
855	>	public void realRun() throws Throwable { action.run();}}));
856	>	for (Future<?> future : futures)
857	>	try {
858	>	assertNull(future.get(LONG_DELAY_MS, MILLISECONDS));
859	>	} catch (ExecutionException ex) {
860	>	threadUnexpectedException(ex.getCause());
861	>	} catch (Exception ex) {
862	>	threadUnexpectedException(ex);
863	>	}
864	>	}
865	>	}
866	>
867	>	/**
868	>	* A debugging tool to print stack traces of most threads, as jstack does.
869	>	* Uninteresting threads are filtered out.
870	>	*/
871	>	static void dumpTestThreads() {
872	>	ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
873	>	System.err.println("------ stacktrace dump start ------");
874	>	for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) {
875	>	String name = info.getThreadName();
876	>	if ("Signal Dispatcher".equals(name))
877	>	continue;
878	>	if ("Reference Handler".equals(name)
879	>	&& info.getLockName().startsWith("java.lang.ref.Reference$Lock"))
880	>	continue;
881	>	if ("Finalizer".equals(name)
882	>	&& info.getLockName().startsWith("java.lang.ref.ReferenceQueue$Lock"))
883	>	continue;
884	>	if ("checkForWedgedTest".equals(name))
885	>	continue;
886	>	System.err.print(info);
887	>	}
888	>	System.err.println("------ stacktrace dump end ------");
889	>	}
890	>
891	>	/**
892	>	* Checks that thread does not terminate within the default
893	>	* millisecond delay of {@code timeoutMillis()}.
894	>	*/
895	>	void assertThreadStaysAlive(Thread thread) {
896	>	assertThreadStaysAlive(thread, timeoutMillis());
897	>	}
898	>
899	>	/**
900	>	* Checks that thread does not terminate within the given millisecond delay.
901	>	*/
902	>	void assertThreadStaysAlive(Thread thread, long millis) {
903	>	try {
904	>	// No need to optimize the failing case via Thread.join.
905	>	delay(millis);
906	>	assertTrue(thread.isAlive());
907	>	} catch (InterruptedException fail) {
908	>	threadFail("Unexpected InterruptedException");
909		}
910		}
911
912	+	/**
913	+	* Checks that the threads do not terminate within the default
914	+	* millisecond delay of {@code timeoutMillis()}.
915	+	*/
916	+	void assertThreadsStayAlive(Thread... threads) {
917	+	assertThreadsStayAlive(timeoutMillis(), threads);
918	+	}
919	+
920	+	/**
921	+	* Checks that the threads do not terminate within the given millisecond delay.
922	+	*/
923	+	void assertThreadsStayAlive(long millis, Thread... threads) {
924	+	try {
925	+	// No need to optimize the failing case via Thread.join.
926	+	delay(millis);
927	+	for (Thread thread : threads)
928	+	assertTrue(thread.isAlive());
929	+	} catch (InterruptedException fail) {
930	+	threadFail("Unexpected InterruptedException");
931	+	}
932	+	}
933
934		/**
935	<	* fail with message "should throw exception"
935	>	* Checks that future.get times out, with the default timeout of
936	>	* {@code timeoutMillis()}.
937	>	*/
938	>	void assertFutureTimesOut(Future future) {
939	>	assertFutureTimesOut(future, timeoutMillis());
940	>	}
941	>
942	>	/**
943	>	* Checks that future.get times out, with the given millisecond timeout.
944	>	*/
945	>	void assertFutureTimesOut(Future future, long timeoutMillis) {
946	>	long startTime = System.nanoTime();
947	>	try {
948	>	future.get(timeoutMillis, MILLISECONDS);
949	>	shouldThrow();
950	>	} catch (TimeoutException success) {
951	>	} catch (Exception fail) {
952	>	threadUnexpectedException(fail);
953	>	} finally { future.cancel(true); }
954	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
955	>	}
956	>
957	>	/**
958	>	* Fails with message "should throw exception".
959		*/
960		public void shouldThrow() {
961		fail("Should throw exception");
962		}
963
964		/**
965	<	* fail with message "Unexpected exception"
965	>	* Fails with message "should throw " + exceptionName.
966		*/
967	<	public void unexpectedException() {
968	<	fail("Unexpected exception");
967	>	public void shouldThrow(String exceptionName) {
968	>	fail("Should throw " + exceptionName);
969		}
970
326	–
971		/**
972		* The number of elements to place in collections, arrays, etc.
973		*/
974	<	static final int SIZE = 20;
974	>	public static final int SIZE = 20;
975
976		// Some convenient Integer constants
977
978	<	static final Integer zero = new Integer(0);
979	<	static final Integer one = new Integer(1);
980	<	static final Integer two = new Integer(2);
981	<	static final Integer three  = new Integer(3);
982	<	static final Integer four  = new Integer(4);
983	<	static final Integer five  = new Integer(5);
984	<	static final Integer six = new Integer(6);
985	<	static final Integer seven = new Integer(7);
986	<	static final Integer eight = new Integer(8);
987	<	static final Integer nine = new Integer(9);
988	<	static final Integer m1  = new Integer(-1);
989	<	static final Integer m2  = new Integer(-2);
990	<	static final Integer m3  = new Integer(-3);
991	<	static final Integer m4 = new Integer(-4);
992	<	static final Integer m5 = new Integer(-5);
993	<	static final Integer m10 = new Integer(-10);
978	>	public static final Integer zero  = new Integer(0);
979	>	public static final Integer one   = new Integer(1);
980	>	public static final Integer two   = new Integer(2);
981	>	public static final Integer three = new Integer(3);
982	>	public static final Integer four  = new Integer(4);
983	>	public static final Integer five  = new Integer(5);
984	>	public static final Integer six   = new Integer(6);
985	>	public static final Integer seven = new Integer(7);
986	>	public static final Integer eight = new Integer(8);
987	>	public static final Integer nine  = new Integer(9);
988	>	public static final Integer m1  = new Integer(-1);
989	>	public static final Integer m2  = new Integer(-2);
990	>	public static final Integer m3  = new Integer(-3);
991	>	public static final Integer m4  = new Integer(-4);
992	>	public static final Integer m5  = new Integer(-5);
993	>	public static final Integer m6  = new Integer(-6);
994	>	public static final Integer m10 = new Integer(-10);
995	>
996	>	/**
997	>	* Runs Runnable r with a security policy that permits precisely
998	>	* the specified permissions.  If there is no current security
999	>	* manager, the runnable is run twice, both with and without a
1000	>	* security manager.  We require that any security manager permit
1001	>	* getPolicy/setPolicy.
1002	>	*/
1003	>	public void runWithPermissions(Runnable r, Permission... permissions) {
1004	>	SecurityManager sm = System.getSecurityManager();
1005	>	if (sm == null) {
1006	>	r.run();
1007	>	}
1008	>	runWithSecurityManagerWithPermissions(r, permissions);
1009	>	}
1010
1011	+	/**
1012	+	* Runs Runnable r with a security policy that permits precisely
1013	+	* the specified permissions.  If there is no current security
1014	+	* manager, a temporary one is set for the duration of the
1015	+	* Runnable.  We require that any security manager permit
1016	+	* getPolicy/setPolicy.
1017	+	*/
1018	+	public void runWithSecurityManagerWithPermissions(Runnable r,
1019	+	Permission... permissions) {
1020	+	SecurityManager sm = System.getSecurityManager();
1021	+	if (sm == null) {
1022	+	Policy savedPolicy = Policy.getPolicy();
1023	+	try {
1024	+	Policy.setPolicy(permissivePolicy());
1025	+	System.setSecurityManager(new SecurityManager());
1026	+	runWithSecurityManagerWithPermissions(r, permissions);
1027	+	} finally {
1028	+	System.setSecurityManager(null);
1029	+	Policy.setPolicy(savedPolicy);
1030	+	}
1031	+	} else {
1032	+	Policy savedPolicy = Policy.getPolicy();
1033	+	AdjustablePolicy policy = new AdjustablePolicy(permissions);
1034	+	Policy.setPolicy(policy);
1035	+
1036	+	try {
1037	+	r.run();
1038	+	} finally {
1039	+	policy.addPermission(new SecurityPermission("setPolicy"));
1040	+	Policy.setPolicy(savedPolicy);
1041	+	}
1042	+	}
1043	+	}
1044	+
1045	+	/**
1046	+	* Runs a runnable without any permissions.
1047	+	*/
1048	+	public void runWithoutPermissions(Runnable r) {
1049	+	runWithPermissions(r);
1050	+	}
1051
1052		/**
1053		* A security policy where new permissions can be dynamically added
1054		* or all cleared.
1055		*/
1056	<	static class AdjustablePolicy extends java.security.Policy {
1056	>	public static class AdjustablePolicy extends java.security.Policy {
1057		Permissions perms = new Permissions();
1058	<	AdjustablePolicy() { }
1058	>	AdjustablePolicy(Permission... permissions) {
1059	>	for (Permission permission : permissions)
1060	>	perms.add(permission);
1061	>	}
1062		void addPermission(Permission perm) { perms.add(perm); }
1063		void clearPermissions() { perms = new Permissions(); }
1064	<	public PermissionCollection getPermissions(CodeSource cs) {
1065	<	return perms;
1066	<	}
1067	<	public PermissionCollection getPermissions(ProtectionDomain pd) {
1068	<	return perms;
1069	<	}
1070	<	public boolean implies(ProtectionDomain pd, Permission p) {
1071	<	return perms.implies(p);
1072	<	}
1073	<	public void refresh() {}
1064	>	public PermissionCollection getPermissions(CodeSource cs) {
1065	>	return perms;
1066	>	}
1067	>	public PermissionCollection getPermissions(ProtectionDomain pd) {
1068	>	return perms;
1069	>	}
1070	>	public boolean implies(ProtectionDomain pd, Permission p) {
1071	>	return perms.implies(p);
1072	>	}
1073	>	public void refresh() {}
1074	>	public String toString() {
1075	>	List<Permission> ps = new ArrayList<Permission>();
1076	>	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
1077	>	ps.add(e.nextElement());
1078	>	return "AdjustablePolicy with permissions " + ps;
1079	>	}
1080		}
1081
1082	+	/**
1083	+	* Returns a policy containing all the permissions we ever need.
1084	+	*/
1085	+	public static Policy permissivePolicy() {
1086	+	return new AdjustablePolicy
1087	+	// Permissions j.u.c. needs directly
1088	+	(new RuntimePermission("modifyThread"),
1089	+	new RuntimePermission("getClassLoader"),
1090	+	new RuntimePermission("setContextClassLoader"),
1091	+	// Permissions needed to change permissions!
1092	+	new SecurityPermission("getPolicy"),
1093	+	new SecurityPermission("setPolicy"),
1094	+	new RuntimePermission("setSecurityManager"),
1095	+	// Permissions needed by the junit test harness
1096	+	new RuntimePermission("accessDeclaredMembers"),
1097	+	new PropertyPermission("*", "read"),
1098	+	new java.io.FilePermission("<<ALL FILES>>", "read"));
1099	+	}
1100
1101	<	// Some convenient Runnable classes
1101	>	/**
1102	>	* Sleeps until the given time has elapsed.
1103	>	* Throws AssertionFailedError if interrupted.
1104	>	*/
1105	>	void sleep(long millis) {
1106	>	try {
1107	>	delay(millis);
1108	>	} catch (InterruptedException fail) {
1109	>	AssertionFailedError afe =
1110	>	new AssertionFailedError("Unexpected InterruptedException");
1111	>	afe.initCause(fail);
1112	>	throw afe;
1113	>	}
1114	>	}
1115
1116	<	static class NoOpRunnable implements Runnable {
1117	<	public void run() {}
1116	>	/**
1117	>	* Spin-waits up to the specified number of milliseconds for the given
1118	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1119	>	*/
1120	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1121	>	long startTime = System.nanoTime();
1122	>	for (;;) {
1123	>	Thread.State s = thread.getState();
1124	>	if (s == Thread.State.BLOCKED ||
1125	>	s == Thread.State.WAITING ||
1126	>	s == Thread.State.TIMED_WAITING)
1127	>	return;
1128	>	else if (s == Thread.State.TERMINATED)
1129	>	fail("Unexpected thread termination");
1130	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
1131	>	threadAssertTrue(thread.isAlive());
1132	>	return;
1133	>	}
1134	>	Thread.yield();
1135	>	}
1136		}
1137
1138	<	static class NoOpCallable implements Callable {
1139	<	public Object call() { return Boolean.TRUE; }
1138	>	/**
1139	>	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
1140	>	* state: BLOCKED, WAITING, or TIMED_WAITING.
1141	>	*/
1142	>	void waitForThreadToEnterWaitState(Thread thread) {
1143	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
1144		}
1145
1146	<	static final String TEST_STRING = "a test string";
1146	>	/**
1147	>	* Returns the number of milliseconds since time given by
1148	>	* startNanoTime, which must have been previously returned from a
1149	>	* call to {@link System#nanoTime()}.
1150	>	*/
1151	>	static long millisElapsedSince(long startNanoTime) {
1152	>	return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
1153	>	}
1154
1155	<	static class StringTask implements Callable<String> {
1156	<	public String call() { return TEST_STRING; }
1155	>	//     void assertTerminatesPromptly(long timeoutMillis, Runnable r) {
1156	>	//         long startTime = System.nanoTime();
1157	>	//         try {
1158	>	//             r.run();
1159	>	//         } catch (Throwable fail) { threadUnexpectedException(fail); }
1160	>	//         if (millisElapsedSince(startTime) > timeoutMillis/2)
1161	>	//             throw new AssertionFailedError("did not return promptly");
1162	>	//     }
1163	>
1164	>	//     void assertTerminatesPromptly(Runnable r) {
1165	>	//         assertTerminatesPromptly(LONG_DELAY_MS/2, r);
1166	>	//     }
1167	>
1168	>	/**
1169	>	* Checks that timed f.get() returns the expected value, and does not
1170	>	* wait for the timeout to elapse before returning.
1171	>	*/
1172	>	<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
1173	>	long startTime = System.nanoTime();
1174	>	try {
1175	>	assertEquals(expectedValue, f.get(timeoutMillis, MILLISECONDS));
1176	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
1177	>	if (millisElapsedSince(startTime) > timeoutMillis/2)
1178	>	throw new AssertionFailedError("timed get did not return promptly");
1179		}
1180
1181	<	static class NPETask implements Callable<String> {
1182	<	public String call() { throw new NullPointerException(); }
1181	>	<T> void checkTimedGet(Future<T> f, T expectedValue) {
1182	>	checkTimedGet(f, expectedValue, LONG_DELAY_MS);
1183		}
1184
1185	<	static class CallableOne implements Callable<Integer> {
1186	<	public Integer call() { return one; }
1185	>	/**
1186	>	* Returns a new started daemon Thread running the given runnable.
1187	>	*/
1188	>	Thread newStartedThread(Runnable runnable) {
1189	>	Thread t = new Thread(runnable);
1190	>	t.setDaemon(true);
1191	>	t.start();
1192	>	return t;
1193		}
1194
1195	<	class ShortRunnable implements Runnable {
1196	<	public void run() {
1197	<	try {
1198	<	Thread.sleep(SHORT_DELAY_MS);
1199	<	}
1200	<	catch(Exception e) {
1201	<	threadUnexpectedException();
1195	>	/**
1196	>	* Waits for the specified time (in milliseconds) for the thread
1197	>	* to terminate (using {@link Thread#join(long)}), else interrupts
1198	>	* the thread (in the hope that it may terminate later) and fails.
1199	>	*/
1200	>	void awaitTermination(Thread t, long timeoutMillis) {
1201	>	try {
1202	>	t.join(timeoutMillis);
1203	>	} catch (InterruptedException fail) {
1204	>	threadUnexpectedException(fail);
1205	>	} finally {
1206	>	if (t.getState() != Thread.State.TERMINATED) {
1207	>	t.interrupt();
1208	>	threadFail("Test timed out");
1209		}
1210		}
1211		}
1212
1213	<	class ShortInterruptedRunnable implements Runnable {
1214	<	public void run() {
1213	>	/**
1214	>	* Waits for LONG_DELAY_MS milliseconds for the thread to
1215	>	* terminate (using {@link Thread#join(long)}), else interrupts
1216	>	* the thread (in the hope that it may terminate later) and fails.
1217	>	*/
1218	>	void awaitTermination(Thread t) {
1219	>	awaitTermination(t, LONG_DELAY_MS);
1220	>	}
1221	>
1222	>	// Some convenient Runnable classes
1223	>
1224	>	public abstract class CheckedRunnable implements Runnable {
1225	>	protected abstract void realRun() throws Throwable;
1226	>
1227	>	public final void run() {
1228		try {
1229	<	Thread.sleep(SHORT_DELAY_MS);
1230	<	threadShouldThrow();
1231	<	}
415	<	catch(InterruptedException success) {
1229	>	realRun();
1230	>	} catch (Throwable fail) {
1231	>	threadUnexpectedException(fail);
1232		}
1233		}
1234		}
1235
1236	<	class SmallRunnable implements Runnable {
1237	<	public void run() {
1236	>	public abstract class RunnableShouldThrow implements Runnable {
1237	>	protected abstract void realRun() throws Throwable;
1238	>
1239	>	final Class<?> exceptionClass;
1240	>
1241	>	<T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) {
1242	>	this.exceptionClass = exceptionClass;
1243	>	}
1244	>
1245	>	public final void run() {
1246		try {
1247	<	Thread.sleep(SMALL_DELAY_MS);
1248	<	}
1249	<	catch(Exception e) {
1250	<	threadUnexpectedException();
1247	>	realRun();
1248	>	threadShouldThrow(exceptionClass.getSimpleName());
1249	>	} catch (Throwable t) {
1250	>	if (! exceptionClass.isInstance(t))
1251	>	threadUnexpectedException(t);
1252		}
1253		}
1254		}
1255
1256	<	class SmallPossiblyInterruptedRunnable implements Runnable {
1257	<	public void run() {
1256	>	public abstract class ThreadShouldThrow extends Thread {
1257	>	protected abstract void realRun() throws Throwable;
1258	>
1259	>	final Class<?> exceptionClass;
1260	>
1261	>	<T extends Throwable> ThreadShouldThrow(Class<T> exceptionClass) {
1262	>	this.exceptionClass = exceptionClass;
1263	>	}
1264	>
1265	>	public final void run() {
1266		try {
1267	<	Thread.sleep(SMALL_DELAY_MS);
1268	<	}
1269	<	catch(Exception e) {
1267	>	realRun();
1268	>	threadShouldThrow(exceptionClass.getSimpleName());
1269	>	} catch (Throwable t) {
1270	>	if (! exceptionClass.isInstance(t))
1271	>	threadUnexpectedException(t);
1272		}
1273		}
1274		}
1275
1276	<	class SmallCallable implements Callable {
1277	<	public Object call() {
1276	>	public abstract class CheckedInterruptedRunnable implements Runnable {
1277	>	protected abstract void realRun() throws Throwable;
1278	>
1279	>	public final void run() {
1280		try {
1281	<	Thread.sleep(SMALL_DELAY_MS);
1282	<	}
1283	<	catch(Exception e) {
1284	<	threadUnexpectedException();
1281	>	realRun();
1282	>	threadShouldThrow("InterruptedException");
1283	>	} catch (InterruptedException success) {
1284	>	threadAssertFalse(Thread.interrupted());
1285	>	} catch (Throwable fail) {
1286	>	threadUnexpectedException(fail);
1287		}
449	–	return Boolean.TRUE;
1288		}
1289		}
1290
1291	<	class SmallInterruptedRunnable implements Runnable {
1292	<	public void run() {
1291	>	public abstract class CheckedCallable<T> implements Callable<T> {
1292	>	protected abstract T realCall() throws Throwable;
1293	>
1294	>	public final T call() {
1295		try {
1296	<	Thread.sleep(SMALL_DELAY_MS);
1297	<	threadShouldThrow();
1298	<	}
1299	<	catch(InterruptedException success) {
1296	>	return realCall();
1297	>	} catch (Throwable fail) {
1298	>	threadUnexpectedException(fail);
1299	>	return null;
1300		}
1301		}
1302		}
1303
1304	+	public abstract class CheckedInterruptedCallable<T>
1305	+	implements Callable<T> {
1306	+	protected abstract T realCall() throws Throwable;
1307
1308	<	class MediumRunnable implements Runnable {
466	<	public void run() {
1308	>	public final T call() {
1309		try {
1310	<	Thread.sleep(MEDIUM_DELAY_MS);
1311	<	}
1312	<	catch(Exception e) {
1313	<	threadUnexpectedException();
1310	>	T result = realCall();
1311	>	threadShouldThrow("InterruptedException");
1312	>	return result;
1313	>	} catch (InterruptedException success) {
1314	>	threadAssertFalse(Thread.interrupted());
1315	>	} catch (Throwable fail) {
1316	>	threadUnexpectedException(fail);
1317		}
1318	+	return null;
1319		}
1320		}
1321
1322	<	class MediumInterruptedRunnable implements Runnable {
1323	<	public void run() {
1322	>	public static class NoOpRunnable implements Runnable {
1323	>	public void run() {}
1324	>	}
1325	>
1326	>	public static class NoOpCallable implements Callable {
1327	>	public Object call() { return Boolean.TRUE; }
1328	>	}
1329	>
1330	>	public static final String TEST_STRING = "a test string";
1331	>
1332	>	public static class StringTask implements Callable<String> {
1333	>	final String value;
1334	>	public StringTask() { this(TEST_STRING); }
1335	>	public StringTask(String value) { this.value = value; }
1336	>	public String call() { return value; }
1337	>	}
1338	>
1339	>	public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
1340	>	return new CheckedCallable<String>() {
1341	>	protected String realCall() {
1342	>	try {
1343	>	latch.await();
1344	>	} catch (InterruptedException quittingTime) {}
1345	>	return TEST_STRING;
1346	>	}};
1347	>	}
1348	>
1349	>	public Runnable countDowner(final CountDownLatch latch) {
1350	>	return new CheckedRunnable() {
1351	>	public void realRun() throws InterruptedException {
1352	>	latch.countDown();
1353	>	}};
1354	>	}
1355	>
1356	>	class LatchAwaiter extends CheckedRunnable {
1357	>	static final int NEW = 0;
1358	>	static final int RUNNING = 1;
1359	>	static final int DONE = 2;
1360	>	final CountDownLatch latch;
1361	>	int state = NEW;
1362	>	LatchAwaiter(CountDownLatch latch) { this.latch = latch; }
1363	>	public void realRun() throws InterruptedException {
1364	>	state = 1;
1365	>	await(latch);
1366	>	state = 2;
1367	>	}
1368	>	}
1369	>
1370	>	public LatchAwaiter awaiter(CountDownLatch latch) {
1371	>	return new LatchAwaiter(latch);
1372	>	}
1373	>
1374	>	public void await(CountDownLatch latch) {
1375	>	try {
1376	>	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1377	>	} catch (Throwable fail) {
1378	>	threadUnexpectedException(fail);
1379	>	}
1380	>	}
1381	>
1382	>	public void await(Semaphore semaphore) {
1383	>	try {
1384	>	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1385	>	} catch (Throwable fail) {
1386	>	threadUnexpectedException(fail);
1387	>	}
1388	>	}
1389	>
1390	>	//     /**
1391	>	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1392	>	//      */
1393	>	//     public void await(AtomicBoolean flag) {
1394	>	//         await(flag, LONG_DELAY_MS);
1395	>	//     }
1396	>
1397	>	//     /**
1398	>	//      * Spin-waits up to the specified timeout until flag becomes true.
1399	>	//      */
1400	>	//     public void await(AtomicBoolean flag, long timeoutMillis) {
1401	>	//         long startTime = System.nanoTime();
1402	>	//         while (!flag.get()) {
1403	>	//             if (millisElapsedSince(startTime) > timeoutMillis)
1404	>	//                 throw new AssertionFailedError("timed out");
1405	>	//             Thread.yield();
1406	>	//         }
1407	>	//     }
1408	>
1409	>	public static class NPETask implements Callable<String> {
1410	>	public String call() { throw new NullPointerException(); }
1411	>	}
1412	>
1413	>	public static class CallableOne implements Callable<Integer> {
1414	>	public Integer call() { return one; }
1415	>	}
1416	>
1417	>	public class ShortRunnable extends CheckedRunnable {
1418	>	protected void realRun() throws Throwable {
1419	>	delay(SHORT_DELAY_MS);
1420	>	}
1421	>	}
1422	>
1423	>	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1424	>	protected void realRun() throws InterruptedException {
1425	>	delay(SHORT_DELAY_MS);
1426	>	}
1427	>	}
1428	>
1429	>	public class SmallRunnable extends CheckedRunnable {
1430	>	protected void realRun() throws Throwable {
1431	>	delay(SMALL_DELAY_MS);
1432	>	}
1433	>	}
1434	>
1435	>	public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1436	>	protected void realRun() {
1437		try {
1438	<	Thread.sleep(MEDIUM_DELAY_MS);
1439	<	threadShouldThrow();
481	<	}
482	<	catch(InterruptedException success) {
483	<	}
1438	>	delay(SMALL_DELAY_MS);
1439	>	} catch (InterruptedException ok) {}
1440		}
1441		}
1442
1443	<	class MediumPossiblyInterruptedRunnable implements Runnable {
1444	<	public void run() {
1443	>	public class SmallCallable extends CheckedCallable {
1444	>	protected Object realCall() throws InterruptedException {
1445	>	delay(SMALL_DELAY_MS);
1446	>	return Boolean.TRUE;
1447	>	}
1448	>	}
1449	>
1450	>	public class MediumRunnable extends CheckedRunnable {
1451	>	protected void realRun() throws Throwable {
1452	>	delay(MEDIUM_DELAY_MS);
1453	>	}
1454	>	}
1455	>
1456	>	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1457	>	protected void realRun() throws InterruptedException {
1458	>	delay(MEDIUM_DELAY_MS);
1459	>	}
1460	>	}
1461	>
1462	>	public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1463	>	return new CheckedRunnable() {
1464	>	protected void realRun() {
1465	>	try {
1466	>	delay(timeoutMillis);
1467	>	} catch (InterruptedException ok) {}
1468	>	}};
1469	>	}
1470	>
1471	>	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1472	>	protected void realRun() {
1473		try {
1474	<	Thread.sleep(MEDIUM_DELAY_MS);
1475	<	}
492	<	catch(InterruptedException success) {
493	<	}
1474	>	delay(MEDIUM_DELAY_MS);
1475	>	} catch (InterruptedException ok) {}
1476		}
1477		}
1478
1479	<	class LongPossiblyInterruptedRunnable implements Runnable {
1480	<	public void run() {
1479	>	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1480	>	protected void realRun() {
1481		try {
1482	<	Thread.sleep(LONG_DELAY_MS);
1483	<	}
502	<	catch(InterruptedException success) {
503	<	}
1482	>	delay(LONG_DELAY_MS);
1483	>	} catch (InterruptedException ok) {}
1484		}
1485		}
1486
1487		/**
1488		* For use as ThreadFactory in constructors
1489		*/
1490	<	static class SimpleThreadFactory implements ThreadFactory{
1491	<	public Thread newThread(Runnable r){
1490	>	public static class SimpleThreadFactory implements ThreadFactory {
1491	>	public Thread newThread(Runnable r) {
1492		return new Thread(r);
1493		}
1494		}
1495
1496	<	static class TrackedShortRunnable implements Runnable {
1497	<	volatile boolean done = false;
1496	>	public interface TrackedRunnable extends Runnable {
1497	>	boolean isDone();
1498	>	}
1499	>
1500	>	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1501	>	return new TrackedRunnable() {
1502	>	private volatile boolean done = false;
1503	>	public boolean isDone() { return done; }
1504	>	public void run() {
1505	>	try {
1506	>	delay(timeoutMillis);
1507	>	done = true;
1508	>	} catch (InterruptedException ok) {}
1509	>	}
1510	>	};
1511	>	}
1512	>
1513	>	public static class TrackedShortRunnable implements Runnable {
1514	>	public volatile boolean done = false;
1515		public void run() {
1516		try {
1517	<	Thread.sleep(SMALL_DELAY_MS);
1517	>	delay(SHORT_DELAY_MS);
1518		done = true;
1519	<	} catch(Exception e){
523	<	}
1519	>	} catch (InterruptedException ok) {}
1520		}
1521		}
1522
1523	<	static class TrackedMediumRunnable implements Runnable {
1524	<	volatile boolean done = false;
1523	>	public static class TrackedSmallRunnable implements Runnable {
1524	>	public volatile boolean done = false;
1525		public void run() {
1526		try {
1527	<	Thread.sleep(MEDIUM_DELAY_MS);
1527	>	delay(SMALL_DELAY_MS);
1528		done = true;
1529	<	} catch(Exception e){
534	<	}
1529	>	} catch (InterruptedException ok) {}
1530		}
1531		}
1532
1533	<	static class TrackedLongRunnable implements Runnable {
1534	<	volatile boolean done = false;
1533	>	public static class TrackedMediumRunnable implements Runnable {
1534	>	public volatile boolean done = false;
1535		public void run() {
1536		try {
1537	<	Thread.sleep(LONG_DELAY_MS);
1537	>	delay(MEDIUM_DELAY_MS);
1538		done = true;
1539	<	} catch(Exception e){
1540	<	}
1539	>	} catch (InterruptedException ok) {}
1540	>	}
1541	>	}
1542	>
1543	>	public static class TrackedLongRunnable implements Runnable {
1544	>	public volatile boolean done = false;
1545	>	public void run() {
1546	>	try {
1547	>	delay(LONG_DELAY_MS);
1548	>	done = true;
1549	>	} catch (InterruptedException ok) {}
1550		}
1551		}
1552
1553	<	static class TrackedNoOpRunnable implements Runnable {
1554	<	volatile boolean done = false;
1553	>	public static class TrackedNoOpRunnable implements Runnable {
1554	>	public volatile boolean done = false;
1555		public void run() {
1556		done = true;
1557		}
1558		}
1559
1560	<	static class TrackedCallable implements Callable {
1561	<	volatile boolean done = false;
1560	>	public static class TrackedCallable implements Callable {
1561	>	public volatile boolean done = false;
1562		public Object call() {
1563		try {
1564	<	Thread.sleep(SMALL_DELAY_MS);
1564	>	delay(SMALL_DELAY_MS);
1565		done = true;
1566	<	} catch(Exception e){
563	<	}
1566	>	} catch (InterruptedException ok) {}
1567		return Boolean.TRUE;
1568		}
1569		}
1570
1571	+	/**
1572	+	* Analog of CheckedRunnable for RecursiveAction
1573	+	*/
1574	+	public abstract class CheckedRecursiveAction extends RecursiveAction {
1575	+	protected abstract void realCompute() throws Throwable;
1576	+
1577	+	@Override protected final void compute() {
1578	+	try {
1579	+	realCompute();
1580	+	} catch (Throwable fail) {
1581	+	threadUnexpectedException(fail);
1582	+	}
1583	+	}
1584	+	}
1585	+
1586	+	/**
1587	+	* Analog of CheckedCallable for RecursiveTask
1588	+	*/
1589	+	public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1590	+	protected abstract T realCompute() throws Throwable;
1591	+
1592	+	@Override protected final T compute() {
1593	+	try {
1594	+	return realCompute();
1595	+	} catch (Throwable fail) {
1596	+	threadUnexpectedException(fail);
1597	+	return null;
1598	+	}
1599	+	}
1600	+	}
1601
1602		/**
1603		* For use as RejectedExecutionHandler in constructors
1604		*/
1605	<	static class NoOpREHandler implements RejectedExecutionHandler{
1606	<	public void rejectedExecution(Runnable r, ThreadPoolExecutor executor){}
1605	>	public static class NoOpREHandler implements RejectedExecutionHandler {
1606	>	public void rejectedExecution(Runnable r,
1607	>	ThreadPoolExecutor executor) {}
1608		}
1609
1610	+	/**
1611	+	* A CyclicBarrier that uses timed await and fails with
1612	+	* AssertionFailedErrors instead of throwing checked exceptions.
1613	+	*/
1614	+	public class CheckedBarrier extends CyclicBarrier {
1615	+	public CheckedBarrier(int parties) { super(parties); }
1616	+
1617	+	public int await() {
1618	+	try {
1619	+	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1620	+	} catch (TimeoutException timedOut) {
1621	+	throw new AssertionFailedError("timed out");
1622	+	} catch (Exception fail) {
1623	+	AssertionFailedError afe =
1624	+	new AssertionFailedError("Unexpected exception: " + fail);
1625	+	afe.initCause(fail);
1626	+	throw afe;
1627	+	}
1628	+	}
1629	+	}
1630
1631	+	void checkEmpty(BlockingQueue q) {
1632	+	try {
1633	+	assertTrue(q.isEmpty());
1634	+	assertEquals(0, q.size());
1635	+	assertNull(q.peek());
1636	+	assertNull(q.poll());
1637	+	assertNull(q.poll(0, MILLISECONDS));
1638	+	assertEquals(q.toString(), "[]");
1639	+	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1640	+	assertFalse(q.iterator().hasNext());
1641	+	try {
1642	+	q.element();
1643	+	shouldThrow();
1644	+	} catch (NoSuchElementException success) {}
1645	+	try {
1646	+	q.iterator().next();
1647	+	shouldThrow();
1648	+	} catch (NoSuchElementException success) {}
1649	+	try {
1650	+	q.remove();
1651	+	shouldThrow();
1652	+	} catch (NoSuchElementException success) {}
1653	+	} catch (InterruptedException fail) { threadUnexpectedException(fail); }
1654	+	}
1655	+
1656	+	void assertSerialEquals(Object x, Object y) {
1657	+	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1658	+	}
1659	+
1660	+	void assertNotSerialEquals(Object x, Object y) {
1661	+	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1662	+	}
1663	+
1664	+	byte[] serialBytes(Object o) {
1665	+	try {
1666	+	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1667	+	ObjectOutputStream oos = new ObjectOutputStream(bos);
1668	+	oos.writeObject(o);
1669	+	oos.flush();
1670	+	oos.close();
1671	+	return bos.toByteArray();
1672	+	} catch (Throwable fail) {
1673	+	threadUnexpectedException(fail);
1674	+	return new byte[0];
1675	+	}
1676	+	}
1677	+
1678	+	@SuppressWarnings("unchecked")
1679	+	<T> T serialClone(T o) {
1680	+	try {
1681	+	ObjectInputStream ois = new ObjectInputStream
1682	+	(new ByteArrayInputStream(serialBytes(o)));
1683	+	T clone = (T) ois.readObject();
1684	+	assertSame(o.getClass(), clone.getClass());
1685	+	return clone;
1686	+	} catch (Throwable fail) {
1687	+	threadUnexpectedException(fail);
1688	+	return null;
1689	+	}
1690	+	}
1691	+
1692	+	public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1693	+	Runnable... throwingActions) {
1694	+	for (Runnable throwingAction : throwingActions) {
1695	+	boolean threw = false;
1696	+	try { throwingAction.run(); }
1697	+	catch (Throwable t) {
1698	+	threw = true;
1699	+	if (!expectedExceptionClass.isInstance(t)) {
1700	+	AssertionFailedError afe =
1701	+	new AssertionFailedError
1702	+	("Expected " + expectedExceptionClass.getName() +
1703	+	", got " + t.getClass().getName());
1704	+	afe.initCause(t);
1705	+	threadUnexpectedException(afe);
1706	+	}
1707	+	}
1708	+	if (!threw)
1709	+	shouldThrow(expectedExceptionClass.getName());
1710	+	}
1711	+	}
1712	+
1713	+	public void assertIteratorExhausted(Iterator<?> it) {
1714	+	try {
1715	+	it.next();
1716	+	shouldThrow();
1717	+	} catch (NoSuchElementException success) {}
1718	+	assertFalse(it.hasNext());
1719	+	}
1720		}

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