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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.46 by jsr166, Tue Dec 1 05:41:40 2009 UTC vs.
Revision 1.134 by jsr166, Sun Jun 14 20:58:14 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.*;
9		import static java.util.concurrent.TimeUnit.MILLISECONDS;
10	<	import java.io.*;
11	<	import java.security.*;
10	>	import static java.util.concurrent.TimeUnit.NANOSECONDS;
11	>
12	>	import java.io.ByteArrayInputStream;
13	>	import java.io.ByteArrayOutputStream;
14	>	import java.io.ObjectInputStream;
15	>	import java.io.ObjectOutputStream;
16	>	import java.lang.management.ManagementFactory;
17	>	import java.lang.management.ThreadInfo;
18	>	import java.lang.reflect.Constructor;
19	>	import java.lang.reflect.Method;
20	>	import java.lang.reflect.Modifier;
21	>	import java.security.CodeSource;
22	>	import java.security.Permission;
23	>	import java.security.PermissionCollection;
24	>	import java.security.Permissions;
25	>	import java.security.Policy;
26	>	import java.security.ProtectionDomain;
27	>	import java.security.SecurityPermission;
28	>	import java.util.ArrayList;
29	>	import java.util.Arrays;
30	>	import java.util.Date;
31	>	import java.util.Enumeration;
32	>	import java.util.Iterator;
33	>	import java.util.List;
34	>	import java.util.NoSuchElementException;
35	>	import java.util.PropertyPermission;
36	>	import java.util.concurrent.BlockingQueue;
37	>	import java.util.concurrent.Callable;
38	>	import java.util.concurrent.CountDownLatch;
39	>	import java.util.concurrent.CyclicBarrier;
40	>	import java.util.concurrent.ExecutorService;
41	>	import java.util.concurrent.Future;
42	>	import java.util.concurrent.RecursiveAction;
43	>	import java.util.concurrent.RecursiveTask;
44	>	import java.util.concurrent.RejectedExecutionHandler;
45	>	import java.util.concurrent.Semaphore;
46	>	import java.util.concurrent.ThreadFactory;
47	>	import java.util.concurrent.ThreadPoolExecutor;
48	>	import java.util.concurrent.TimeoutException;
49	>	import java.util.concurrent.atomic.AtomicReference;
50	>	import java.util.regex.Pattern;
51	>
52	>	import junit.framework.AssertionFailedError;
53	>	import junit.framework.Test;
54	>	import junit.framework.TestCase;
55	>	import junit.framework.TestResult;
56	>	import junit.framework.TestSuite;
57
58		/**
59		* Base class for JSR166 Junit TCK tests.  Defines some constants,
#	Line 26 | Line 68 | import java.security.*;
68		* <li> All assertions in code running in generated threads must use
69		* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link
70		* #threadAssertEquals}, or {@link #threadAssertNull}, (not
71	<	* <tt>fail</tt>, <tt>assertTrue</tt>, etc.) It is OK (but not
71	>	* {@code fail}, {@code assertTrue}, etc.) It is OK (but not
72		* particularly recommended) for other code to use these forms too.
73		* Only the most typically used JUnit assertion methods are defined
74		* this way, but enough to live with.</li>
75		*
76		* <li> If you override {@link #setUp} or {@link #tearDown}, make sure
77	<	* to invoke <tt>super.setUp</tt> and <tt>super.tearDown</tt> within
77	>	* to invoke {@code super.setUp} and {@code super.tearDown} within
78		* them. These methods are used to clear and check for thread
79		* assertion failures.</li>
80		*
81	<	* <li>All delays and timeouts must use one of the constants <tt>
82	<	* SHORT_DELAY_MS</tt>, <tt> SMALL_DELAY_MS</tt>, <tt> MEDIUM_DELAY_MS</tt>,
83	<	* <tt> LONG_DELAY_MS</tt>. The idea here is that a SHORT is always
81	>	* <li>All delays and timeouts must use one of the constants {@code
82	>	* SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS},
83	>	* {@code LONG_DELAY_MS}. The idea here is that a SHORT is always
84		* discriminable from zero time, and always allows enough time for the
85		* small amounts of computation (creating a thread, calling a few
86		* methods, etc) needed to reach a timeout point. Similarly, a SMALL
#	Line 48 | Line 90 | import java.security.*;
90		* in one spot to rerun tests on slower platforms.</li>
91		*
92		* <li> All threads generated must be joined inside each test case
93	<	* method (or <tt>fail</tt> to do so) before returning from the
94	<	* method. The <tt> joinPool</tt> method can be used to do this when
93	>	* method (or {@code fail} to do so) before returning from the
94	>	* method. The {@code joinPool} method can be used to do this when
95		* using Executors.</li>
96		*
97		* </ol>
98		*
99	<	* <p> <b>Other notes</b>
99	>	* <p><b>Other notes</b>
100		* <ul>
101		*
102		* <li> Usually, there is one testcase method per JSR166 method
#	Line 81 | Line 123 | import java.security.*;
123		* any particular package to simplify things for people integrating
124		* them in TCK test suites.</li>
125		*
126	<	* <li> As a convenience, the <tt>main</tt> of this class (JSR166TestCase)
126	>	* <li> As a convenience, the {@code main} of this class (JSR166TestCase)
127		* runs all JSR166 unit tests.</li>
128		*
129		* </ul>
130		*/
131		public class JSR166TestCase extends TestCase {
132	+	private static final boolean useSecurityManager =
133	+	Boolean.getBoolean("jsr166.useSecurityManager");
134	+
135	+	protected static final boolean expensiveTests =
136	+	Boolean.getBoolean("jsr166.expensiveTests");
137	+
138	+	/**
139	+	* If true, also run tests that are not part of the official tck
140	+	* because they test unspecified implementation details.
141	+	*/
142	+	protected static final boolean testImplementationDetails =
143	+	Boolean.getBoolean("jsr166.testImplementationDetails");
144	+
145	+	/**
146	+	* If true, report on stdout all "slow" tests, that is, ones that
147	+	* take more than profileThreshold milliseconds to execute.
148	+	*/
149	+	private static final boolean profileTests =
150	+	Boolean.getBoolean("jsr166.profileTests");
151	+
152		/**
153	<	* Runs all JSR166 unit tests using junit.textui.TestRunner
153	>	* The number of milliseconds that tests are permitted for
154	>	* execution without being reported, when profileTests is set.
155	>	*/
156	>	private static final long profileThreshold =
157	>	Long.getLong("jsr166.profileThreshold", 100);
158	>
159	>	/**
160	>	* The number of repetitions per test (for tickling rare bugs).
161	>	*/
162	>	private static final int runsPerTest =
163	>	Integer.getInteger("jsr166.runsPerTest", 1);
164	>
165	>	/**
166	>	* The number of repetitions of the test suite (for finding leaks?).
167	>	*/
168	>	private static final int suiteRuns =
169	>	Integer.getInteger("jsr166.suiteRuns", 1);
170	>
171	>	public JSR166TestCase() { super(); }
172	>	public JSR166TestCase(String name) { super(name); }
173	>
174	>	/**
175	>	* A filter for tests to run, matching strings of the form
176	>	* methodName(className), e.g. "testInvokeAll5(ForkJoinPoolTest)"
177	>	* Usefully combined with jsr166.runsPerTest.
178	>	*/
179	>	private static final Pattern methodFilter = methodFilter();
180	>
181	>	private static Pattern methodFilter() {
182	>	String regex = System.getProperty("jsr166.methodFilter");
183	>	return (regex == null) ? null : Pattern.compile(regex);
184	>	}
185	>
186	>	protected void runTest() throws Throwable {
187	>	if (methodFilter == null
188	>	|| methodFilter.matcher(toString()).find()) {
189	>	for (int i = 0; i < runsPerTest; i++) {
190	>	if (profileTests)
191	>	runTestProfiled();
192	>	else
193	>	super.runTest();
194	>	}
195	>	}
196	>	}
197	>
198	>	protected void runTestProfiled() throws Throwable {
199	>	// Warmup run, notably to trigger all needed classloading.
200	>	super.runTest();
201	>	long t0 = System.nanoTime();
202	>	try {
203	>	super.runTest();
204	>	} finally {
205	>	long elapsedMillis = millisElapsedSince(t0);
206	>	if (elapsedMillis >= profileThreshold)
207	>	System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
208	>	}
209	>	}
210	>
211	>	/**
212	>	* Runs all JSR166 unit tests using junit.textui.TestRunner.
213		*/
214		public static void main(String[] args) {
215	<	int iters = 1;
216	<	if (args.length > 0)
217	<	iters = Integer.parseInt(args[0]);
218	<	Test s = suite();
219	<	for (int i = 0; i < iters; ++i) {
220	<	junit.textui.TestRunner.run(s);
215	>	main(suite(), args);
216	>	}
217	>
218	>	/**
219	>	* Runs all unit tests in the given test suite.
220	>	* Actual behavior influenced by jsr166.* system properties.
221	>	*/
222	>	static void main(Test suite, String[] args) {
223	>	if (useSecurityManager) {
224	>	System.err.println("Setting a permissive security manager");
225	>	Policy.setPolicy(permissivePolicy());
226	>	System.setSecurityManager(new SecurityManager());
227	>	}
228	>	for (int i = 0; i < suiteRuns; i++) {
229	>	TestResult result = junit.textui.TestRunner.run(suite);
230	>	if (!result.wasSuccessful())
231	>	System.exit(1);
232		System.gc();
233		System.runFinalization();
234		}
103	–	System.exit(0);
235		}
236
237	+	public static TestSuite newTestSuite(Object... suiteOrClasses) {
238	+	TestSuite suite = new TestSuite();
239	+	for (Object suiteOrClass : suiteOrClasses) {
240	+	if (suiteOrClass instanceof TestSuite)
241	+	suite.addTest((TestSuite) suiteOrClass);
242	+	else if (suiteOrClass instanceof Class)
243	+	suite.addTest(new TestSuite((Class<?>) suiteOrClass));
244	+	else
245	+	throw new ClassCastException("not a test suite or class");
246	+	}
247	+	return suite;
248	+	}
249	+
250	+	public static void addNamedTestClasses(TestSuite suite,
251	+	String... testClassNames) {
252	+	for (String testClassName : testClassNames) {
253	+	try {
254	+	Class<?> testClass = Class.forName(testClassName);
255	+	Method m = testClass.getDeclaredMethod("suite",
256	+	new Class<?>[0]);
257	+	suite.addTest(newTestSuite((Test)m.invoke(null)));
258	+	} catch (Exception e) {
259	+	throw new Error("Missing test class", e);
260	+	}
261	+	}
262	+	}
263	+
264	+	public static final double JAVA_CLASS_VERSION;
265	+	public static final String JAVA_SPECIFICATION_VERSION;
266	+	static {
267	+	try {
268	+	JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
269	+	new java.security.PrivilegedAction<Double>() {
270	+	public Double run() {
271	+	return Double.valueOf(System.getProperty("java.class.version"));}});
272	+	JAVA_SPECIFICATION_VERSION = java.security.AccessController.doPrivileged(
273	+	new java.security.PrivilegedAction<String>() {
274	+	public String run() {
275	+	return System.getProperty("java.specification.version");}});
276	+	} catch (Throwable t) {
277	+	throw new Error(t);
278	+	}
279	+	}
280	+
281	+	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
282	+	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
283	+	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
284	+	public static boolean atLeastJava9() { return JAVA_CLASS_VERSION >= 53.0; }
285	+
286		/**
287	<	* Collects all JSR166 unit tests as one suite
287	>	* Collects all JSR166 unit tests as one suite.
288		*/
289		public static Test suite() {
290	<	TestSuite suite = new TestSuite("JSR166 Unit Tests");
291	<
292	<	suite.addTest(new TestSuite(ForkJoinPoolTest.class));
293	<	suite.addTest(new TestSuite(ForkJoinTaskTest.class));
294	<	suite.addTest(new TestSuite(RecursiveActionTest.class));
295	<	suite.addTest(new TestSuite(RecursiveTaskTest.class));
296	<	suite.addTest(new TestSuite(LinkedTransferQueueTest.class));
297	<	suite.addTest(new TestSuite(PhaserTest.class));
298	<	suite.addTest(new TestSuite(ThreadLocalRandomTest.class));
299	<	suite.addTest(new TestSuite(AbstractExecutorServiceTest.class));
300	<	suite.addTest(new TestSuite(AbstractQueueTest.class));
301	<	suite.addTest(new TestSuite(AbstractQueuedSynchronizerTest.class));
302	<	suite.addTest(new TestSuite(AbstractQueuedLongSynchronizerTest.class));
303	<	suite.addTest(new TestSuite(ArrayBlockingQueueTest.class));
304	<	suite.addTest(new TestSuite(ArrayDequeTest.class));
305	<	suite.addTest(new TestSuite(AtomicBooleanTest.class));
306	<	suite.addTest(new TestSuite(AtomicIntegerArrayTest.class));
307	<	suite.addTest(new TestSuite(AtomicIntegerFieldUpdaterTest.class));
308	<	suite.addTest(new TestSuite(AtomicIntegerTest.class));
309	<	suite.addTest(new TestSuite(AtomicLongArrayTest.class));
310	<	suite.addTest(new TestSuite(AtomicLongFieldUpdaterTest.class));
311	<	suite.addTest(new TestSuite(AtomicLongTest.class));
312	<	suite.addTest(new TestSuite(AtomicMarkableReferenceTest.class));
313	<	suite.addTest(new TestSuite(AtomicReferenceArrayTest.class));
314	<	suite.addTest(new TestSuite(AtomicReferenceFieldUpdaterTest.class));
315	<	suite.addTest(new TestSuite(AtomicReferenceTest.class));
316	<	suite.addTest(new TestSuite(AtomicStampedReferenceTest.class));
317	<	suite.addTest(new TestSuite(ConcurrentHashMapTest.class));
318	<	suite.addTest(new TestSuite(ConcurrentLinkedQueueTest.class));
319	<	suite.addTest(new TestSuite(ConcurrentSkipListMapTest.class));
320	<	suite.addTest(new TestSuite(ConcurrentSkipListSubMapTest.class));
321	<	suite.addTest(new TestSuite(ConcurrentSkipListSetTest.class));
322	<	suite.addTest(new TestSuite(ConcurrentSkipListSubSetTest.class));
323	<	suite.addTest(new TestSuite(CopyOnWriteArrayListTest.class));
324	<	suite.addTest(new TestSuite(CopyOnWriteArraySetTest.class));
325	<	suite.addTest(new TestSuite(CountDownLatchTest.class));
326	<	suite.addTest(new TestSuite(CyclicBarrierTest.class));
327	<	suite.addTest(new TestSuite(DelayQueueTest.class));
328	<	suite.addTest(new TestSuite(EntryTest.class));
329	<	suite.addTest(new TestSuite(ExchangerTest.class));
330	<	suite.addTest(new TestSuite(ExecutorsTest.class));
331	<	suite.addTest(new TestSuite(ExecutorCompletionServiceTest.class));
332	<	suite.addTest(new TestSuite(FutureTaskTest.class));
333	<	suite.addTest(new TestSuite(LinkedBlockingDequeTest.class));
334	<	suite.addTest(new TestSuite(LinkedBlockingQueueTest.class));
335	<	suite.addTest(new TestSuite(LinkedListTest.class));
336	<	suite.addTest(new TestSuite(LockSupportTest.class));
337	<	suite.addTest(new TestSuite(PriorityBlockingQueueTest.class));
338	<	suite.addTest(new TestSuite(PriorityQueueTest.class));
339	<	suite.addTest(new TestSuite(ReentrantLockTest.class));
340	<	suite.addTest(new TestSuite(ReentrantReadWriteLockTest.class));
341	<	suite.addTest(new TestSuite(ScheduledExecutorTest.class));
342	<	suite.addTest(new TestSuite(ScheduledExecutorSubclassTest.class));
343	<	suite.addTest(new TestSuite(SemaphoreTest.class));
344	<	suite.addTest(new TestSuite(SynchronousQueueTest.class));
345	<	suite.addTest(new TestSuite(SystemTest.class));
346	<	suite.addTest(new TestSuite(ThreadLocalTest.class));
347	<	suite.addTest(new TestSuite(ThreadPoolExecutorTest.class));
348	<	suite.addTest(new TestSuite(ThreadPoolExecutorSubclassTest.class));
349	<	suite.addTest(new TestSuite(ThreadTest.class));
350	<	suite.addTest(new TestSuite(TimeUnitTest.class));
351	<	suite.addTest(new TestSuite(TreeMapTest.class));
352	<	suite.addTest(new TestSuite(TreeSetTest.class));
353	<	suite.addTest(new TestSuite(TreeSubMapTest.class));
354	<	suite.addTest(new TestSuite(TreeSubSetTest.class));
290	>	// Java7+ test classes
291	>	TestSuite suite = newTestSuite(
292	>	ForkJoinPoolTest.suite(),
293	>	ForkJoinTaskTest.suite(),
294	>	RecursiveActionTest.suite(),
295	>	RecursiveTaskTest.suite(),
296	>	LinkedTransferQueueTest.suite(),
297	>	PhaserTest.suite(),
298	>	ThreadLocalRandomTest.suite(),
299	>	AbstractExecutorServiceTest.suite(),
300	>	AbstractQueueTest.suite(),
301	>	AbstractQueuedSynchronizerTest.suite(),
302	>	AbstractQueuedLongSynchronizerTest.suite(),
303	>	ArrayBlockingQueueTest.suite(),
304	>	ArrayDequeTest.suite(),
305	>	AtomicBooleanTest.suite(),
306	>	AtomicIntegerArrayTest.suite(),
307	>	AtomicIntegerFieldUpdaterTest.suite(),
308	>	AtomicIntegerTest.suite(),
309	>	AtomicLongArrayTest.suite(),
310	>	AtomicLongFieldUpdaterTest.suite(),
311	>	AtomicLongTest.suite(),
312	>	AtomicMarkableReferenceTest.suite(),
313	>	AtomicReferenceArrayTest.suite(),
314	>	AtomicReferenceFieldUpdaterTest.suite(),
315	>	AtomicReferenceTest.suite(),
316	>	AtomicStampedReferenceTest.suite(),
317	>	ConcurrentHashMapTest.suite(),
318	>	ConcurrentLinkedDequeTest.suite(),
319	>	ConcurrentLinkedQueueTest.suite(),
320	>	ConcurrentSkipListMapTest.suite(),
321	>	ConcurrentSkipListSubMapTest.suite(),
322	>	ConcurrentSkipListSetTest.suite(),
323	>	ConcurrentSkipListSubSetTest.suite(),
324	>	CopyOnWriteArrayListTest.suite(),
325	>	CopyOnWriteArraySetTest.suite(),
326	>	CountDownLatchTest.suite(),
327	>	CyclicBarrierTest.suite(),
328	>	DelayQueueTest.suite(),
329	>	EntryTest.suite(),
330	>	ExchangerTest.suite(),
331	>	ExecutorsTest.suite(),
332	>	ExecutorCompletionServiceTest.suite(),
333	>	FutureTaskTest.suite(),
334	>	LinkedBlockingDequeTest.suite(),
335	>	LinkedBlockingQueueTest.suite(),
336	>	LinkedListTest.suite(),
337	>	LockSupportTest.suite(),
338	>	PriorityBlockingQueueTest.suite(),
339	>	PriorityQueueTest.suite(),
340	>	ReentrantLockTest.suite(),
341	>	ReentrantReadWriteLockTest.suite(),
342	>	ScheduledExecutorTest.suite(),
343	>	ScheduledExecutorSubclassTest.suite(),
344	>	SemaphoreTest.suite(),
345	>	SynchronousQueueTest.suite(),
346	>	SystemTest.suite(),
347	>	ThreadLocalTest.suite(),
348	>	ThreadPoolExecutorTest.suite(),
349	>	ThreadPoolExecutorSubclassTest.suite(),
350	>	ThreadTest.suite(),
351	>	TimeUnitTest.suite(),
352	>	TreeMapTest.suite(),
353	>	TreeSetTest.suite(),
354	>	TreeSubMapTest.suite(),
355	>	TreeSubSetTest.suite());
356	>
357	>	// Java8+ test classes
358	>	if (atLeastJava8()) {
359	>	String[] java8TestClassNames = {
360	>	"Atomic8Test",
361	>	"CompletableFutureTest",
362	>	"ConcurrentHashMap8Test",
363	>	"CountedCompleterTest",
364	>	"DoubleAccumulatorTest",
365	>	"DoubleAdderTest",
366	>	"ForkJoinPool8Test",
367	>	"ForkJoinTask8Test",
368	>	"LongAccumulatorTest",
369	>	"LongAdderTest",
370	>	"SplittableRandomTest",
371	>	"StampedLockTest",
372	>	"ThreadLocalRandom8Test",
373	>	};
374	>	addNamedTestClasses(suite, java8TestClassNames);
375	>	}
376	>
377	>	// Java9+ test classes
378	>	if (atLeastJava9()) {
379	>	String[] java9TestClassNames = {
380	>	"ThreadPoolExecutor9Test",
381	>	};
382	>	addNamedTestClasses(suite, java9TestClassNames);
383	>	}
384
385		return suite;
386		}
387
388	+	/** Returns list of junit-style test method names in given class. */
389	+	public static ArrayList<String> testMethodNames(Class<?> testClass) {
390	+	Method[] methods = testClass.getDeclaredMethods();
391	+	ArrayList<String> names = new ArrayList<String>(methods.length);
392	+	for (Method method : methods) {
393	+	if (method.getName().startsWith("test")
394	+	&& Modifier.isPublic(method.getModifiers())
395	+	// method.getParameterCount() requires jdk8+
396	+	&& method.getParameterTypes().length == 0) {
397	+	names.add(method.getName());
398	+	}
399	+	}
400	+	return names;
401	+	}
402	+
403	+	/**
404	+	* Returns junit-style testSuite for the given test class, but
405	+	* parameterized by passing extra data to each test.
406	+	*/
407	+	public static <ExtraData> Test parameterizedTestSuite
408	+	(Class<? extends JSR166TestCase> testClass,
409	+	Class<ExtraData> dataClass,
410	+	ExtraData data) {
411	+	try {
412	+	TestSuite suite = new TestSuite();
413	+	Constructor c =
414	+	testClass.getDeclaredConstructor(dataClass, String.class);
415	+	for (String methodName : testMethodNames(testClass))
416	+	suite.addTest((Test) c.newInstance(data, methodName));
417	+	return suite;
418	+	} catch (Exception e) {
419	+	throw new Error(e);
420	+	}
421	+	}
422	+
423	+	/**
424	+	* Returns junit-style testSuite for the jdk8 extension of the
425	+	* given test class, but parameterized by passing extra data to
426	+	* each test.  Uses reflection to allow compilation in jdk7.
427	+	*/
428	+	public static <ExtraData> Test jdk8ParameterizedTestSuite
429	+	(Class<? extends JSR166TestCase> testClass,
430	+	Class<ExtraData> dataClass,
431	+	ExtraData data) {
432	+	if (atLeastJava8()) {
433	+	String name = testClass.getName();
434	+	String name8 = name.replaceAll("Test$", "8Test");
435	+	if (name.equals(name8)) throw new Error(name);
436	+	try {
437	+	return (Test)
438	+	Class.forName(name8)
439	+	.getMethod("testSuite", new Class[] { dataClass })
440	+	.invoke(null, data);
441	+	} catch (Exception e) {
442	+	throw new Error(e);
443	+	}
444	+	} else {
445	+	return new TestSuite();
446	+	}
447	+
448	+	}
449	+
450	+	// Delays for timing-dependent tests, in milliseconds.
451
452		public static long SHORT_DELAY_MS;
453		public static long SMALL_DELAY_MS;
454		public static long MEDIUM_DELAY_MS;
455		public static long LONG_DELAY_MS;
456
185	–
457		/**
458		* Returns the shortest timed delay. This could
459		* be reimplemented to use for example a Property.
#	Line 191 | Line 462 | public class JSR166TestCase extends Test
462		return 50;
463		}
464
194	–
465		/**
466		* Sets delays as multiples of SHORT_DELAY.
467		*/
468		protected void setDelays() {
469		SHORT_DELAY_MS = getShortDelay();
470	<	SMALL_DELAY_MS = SHORT_DELAY_MS * 5;
470	>	SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
471		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
472	<	LONG_DELAY_MS = SHORT_DELAY_MS * 50;
472	>	LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
473	>	}
474	>
475	>	/**
476	>	* Returns a timeout in milliseconds to be used in tests that
477	>	* verify that operations block or time out.
478	>	*/
479	>	long timeoutMillis() {
480	>	return SHORT_DELAY_MS / 4;
481	>	}
482	>
483	>	/**
484	>	* Returns a new Date instance representing a time delayMillis
485	>	* milliseconds in the future.
486	>	*/
487	>	Date delayedDate(long delayMillis) {
488	>	return new Date(System.currentTimeMillis() + delayMillis);
489		}
490
491		/**
492	<	* Flag set true if any threadAssert methods fail
492	>	* The first exception encountered if any threadAssertXXX method fails.
493		*/
494	<	volatile boolean threadFailed;
494	>	private final AtomicReference<Throwable> threadFailure
495	>	= new AtomicReference<Throwable>(null);
496
497		/**
498	<	* Initializes test to indicate that no thread assertions have failed
498	>	* Records an exception so that it can be rethrown later in the test
499	>	* harness thread, triggering a test case failure.  Only the first
500	>	* failure is recorded; subsequent calls to this method from within
501	>	* the same test have no effect.
502		*/
503	+	public void threadRecordFailure(Throwable t) {
504	+	threadFailure.compareAndSet(null, t);
505	+	}
506	+
507		public void setUp() {
508		setDelays();
215	–	threadFailed = false;
509		}
510
511		/**
512	<	* Triggers test case failure if any thread assertions have failed
512	>	* Extra checks that get done for all test cases.
513	>	*
514	>	* Triggers test case failure if any thread assertions have failed,
515	>	* by rethrowing, in the test harness thread, any exception recorded
516	>	* earlier by threadRecordFailure.
517	>	*
518	>	* Triggers test case failure if interrupt status is set in the main thread.
519	>	*/
520	>	public void tearDown() throws Exception {
521	>	Throwable t = threadFailure.getAndSet(null);
522	>	if (t != null) {
523	>	if (t instanceof Error)
524	>	throw (Error) t;
525	>	else if (t instanceof RuntimeException)
526	>	throw (RuntimeException) t;
527	>	else if (t instanceof Exception)
528	>	throw (Exception) t;
529	>	else {
530	>	AssertionFailedError afe =
531	>	new AssertionFailedError(t.toString());
532	>	afe.initCause(t);
533	>	throw afe;
534	>	}
535	>	}
536	>
537	>	if (Thread.interrupted())
538	>	throw new AssertionFailedError("interrupt status set in main thread");
539	>
540	>	checkForkJoinPoolThreadLeaks();
541	>	}
542	>
543	>	/**
544	>	* Finds missing try { ... } finally { joinPool(e); }
545		*/
546	<	public void tearDown() {
547	<	assertFalse(threadFailed);
546	>	void checkForkJoinPoolThreadLeaks() throws InterruptedException {
547	>	Thread[] survivors = new Thread[5];
548	>	int count = Thread.enumerate(survivors);
549	>	for (int i = 0; i < count; i++) {
550	>	Thread thread = survivors[i];
551	>	String name = thread.getName();
552	>	if (name.startsWith("ForkJoinPool-")) {
553	>	// give thread some time to terminate
554	>	thread.join(LONG_DELAY_MS);
555	>	if (!thread.isAlive()) continue;
556	>	throw new AssertionFailedError
557	>	(String.format("Found leaked ForkJoinPool thread test=%s thread=%s%n",
558	>	toString(), name));
559	>	}
560	>	}
561		}
562
563		/**
564	<	* Fail, also setting status to indicate current testcase should fail
564	>	* Just like fail(reason), but additionally recording (using
565	>	* threadRecordFailure) any AssertionFailedError thrown, so that
566	>	* the current testcase will fail.
567		*/
568		public void threadFail(String reason) {
569	<	threadFailed = true;
570	<	fail(reason);
569	>	try {
570	>	fail(reason);
571	>	} catch (AssertionFailedError t) {
572	>	threadRecordFailure(t);
573	>	fail(reason);
574	>	}
575		}
576
577		/**
578	<	* If expression not true, set status to indicate current testcase
579	<	* should fail
578	>	* Just like assertTrue(b), but additionally recording (using
579	>	* threadRecordFailure) any AssertionFailedError thrown, so that
580	>	* the current testcase will fail.
581		*/
582		public void threadAssertTrue(boolean b) {
583	<	if (!b) {
239	<	threadFailed = true;
583	>	try {
584		assertTrue(b);
585	+	} catch (AssertionFailedError t) {
586	+	threadRecordFailure(t);
587	+	throw t;
588		}
589		}
590
591		/**
592	<	* If expression not false, set status to indicate current testcase
593	<	* should fail
592	>	* Just like assertFalse(b), but additionally recording (using
593	>	* threadRecordFailure) any AssertionFailedError thrown, so that
594	>	* the current testcase will fail.
595		*/
596		public void threadAssertFalse(boolean b) {
597	<	if (b) {
250	<	threadFailed = true;
597	>	try {
598		assertFalse(b);
599	+	} catch (AssertionFailedError t) {
600	+	threadRecordFailure(t);
601	+	throw t;
602		}
603		}
604
605		/**
606	<	* If argument not null, set status to indicate current testcase
607	<	* should fail
606	>	* Just like assertNull(x), but additionally recording (using
607	>	* threadRecordFailure) any AssertionFailedError thrown, so that
608	>	* the current testcase will fail.
609		*/
610		public void threadAssertNull(Object x) {
611	<	if (x != null) {
261	<	threadFailed = true;
611	>	try {
612		assertNull(x);
613	+	} catch (AssertionFailedError t) {
614	+	threadRecordFailure(t);
615	+	throw t;
616		}
617		}
618
619		/**
620	<	* If arguments not equal, set status to indicate current testcase
621	<	* should fail
620	>	* Just like assertEquals(x, y), but additionally recording (using
621	>	* threadRecordFailure) any AssertionFailedError thrown, so that
622	>	* the current testcase will fail.
623		*/
624		public void threadAssertEquals(long x, long y) {
625	<	if (x != y) {
272	<	threadFailed = true;
625	>	try {
626		assertEquals(x, y);
627	+	} catch (AssertionFailedError t) {
628	+	threadRecordFailure(t);
629	+	throw t;
630		}
631		}
632
633		/**
634	<	* If arguments not equal, set status to indicate current testcase
635	<	* should fail
634	>	* Just like assertEquals(x, y), but additionally recording (using
635	>	* threadRecordFailure) any AssertionFailedError thrown, so that
636	>	* the current testcase will fail.
637		*/
638		public void threadAssertEquals(Object x, Object y) {
639	<	if (x != y && (x == null || !x.equals(y))) {
283	<	threadFailed = true;
639	>	try {
640		assertEquals(x, y);
641	+	} catch (AssertionFailedError fail) {
642	+	threadRecordFailure(fail);
643	+	throw fail;
644	+	} catch (Throwable fail) {
645	+	threadUnexpectedException(fail);
646	+	}
647	+	}
648	+
649	+	/**
650	+	* Just like assertSame(x, y), but additionally recording (using
651	+	* threadRecordFailure) any AssertionFailedError thrown, so that
652	+	* the current testcase will fail.
653	+	*/
654	+	public void threadAssertSame(Object x, Object y) {
655	+	try {
656	+	assertSame(x, y);
657	+	} catch (AssertionFailedError fail) {
658	+	threadRecordFailure(fail);
659	+	throw fail;
660		}
661		}
662
663		/**
664	<	* threadFail with message "should throw exception"
664	>	* Calls threadFail with message "should throw exception".
665		*/
666		public void threadShouldThrow() {
667	<	threadFailed = true;
293	<	fail("should throw exception");
667	>	threadFail("should throw exception");
668		}
669
670		/**
671	<	* threadFail with message "should throw" + exceptionName
671	>	* Calls threadFail with message "should throw" + exceptionName.
672		*/
673		public void threadShouldThrow(String exceptionName) {
674	<	threadFailed = true;
301	<	fail("should throw " + exceptionName);
674	>	threadFail("should throw " + exceptionName);
675		}
676
677		/**
678	<	* threadFail with message "Unexpected exception"
678	>	* Records the given exception using {@link #threadRecordFailure},
679	>	* then rethrows the exception, wrapping it in an
680	>	* AssertionFailedError if necessary.
681		*/
682	<	public void threadUnexpectedException() {
683	<	threadFailed = true;
684	<	fail("Unexpected exception");
682	>	public void threadUnexpectedException(Throwable t) {
683	>	threadRecordFailure(t);
684	>	t.printStackTrace();
685	>	if (t instanceof RuntimeException)
686	>	throw (RuntimeException) t;
687	>	else if (t instanceof Error)
688	>	throw (Error) t;
689	>	else {
690	>	AssertionFailedError afe =
691	>	new AssertionFailedError("unexpected exception: " + t);
692	>	afe.initCause(t);
693	>	throw afe;
694	>	}
695		}
696
697		/**
698	<	* threadFail with message "Unexpected exception", with argument
698	>	* Delays, via Thread.sleep, for the given millisecond delay, but
699	>	* if the sleep is shorter than specified, may re-sleep or yield
700	>	* until time elapses.
701		*/
702	<	public void threadUnexpectedException(Throwable ex) {
703	<	threadFailed = true;
704	<	ex.printStackTrace();
705	<	fail("Unexpected exception: " + ex);
702	>	static void delay(long millis) throws InterruptedException {
703	>	long startTime = System.nanoTime();
704	>	long ns = millis * 1000 * 1000;
705	>	for (;;) {
706	>	if (millis > 0L)
707	>	Thread.sleep(millis);
708	>	else // too short to sleep
709	>	Thread.yield();
710	>	long d = ns - (System.nanoTime() - startTime);
711	>	if (d > 0L)
712	>	millis = d / (1000 * 1000);
713	>	else
714	>	break;
715	>	}
716		}
717
718		/**
719	<	* Wait out termination of a thread pool or fail doing so
719	>	* Waits out termination of a thread pool or fails doing so.
720		*/
721	<	public void joinPool(ExecutorService exec) {
721	>	void joinPool(ExecutorService exec) {
722		try {
723		exec.shutdown();
724	<	assertTrue(exec.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
724	>	if (!exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS))
725	>	fail("ExecutorService " + exec +
726	>	" did not terminate in a timely manner");
727		} catch (SecurityException ok) {
728		// Allowed in case test doesn't have privs
729	<	} catch (InterruptedException ie) {
729	>	} catch (InterruptedException fail) {
730		fail("Unexpected InterruptedException");
731		}
732		}
733
734	+	/**
735	+	* A debugging tool to print all stack traces, as jstack does.
736	+	*/
737	+	static void printAllStackTraces() {
738	+	for (ThreadInfo info :
739	+	ManagementFactory.getThreadMXBean()
740	+	.dumpAllThreads(true, true))
741	+	System.err.print(info);
742	+	}
743
744		/**
745	<	* fail with message "should throw exception"
745	>	* Checks that thread does not terminate within the default
746	>	* millisecond delay of {@code timeoutMillis()}.
747		*/
748	<	public void shouldThrow() {
749	<	fail("Should throw exception");
748	>	void assertThreadStaysAlive(Thread thread) {
749	>	assertThreadStaysAlive(thread, timeoutMillis());
750		}
751
752		/**
753	<	* fail with message "should throw " + exceptionName
753	>	* Checks that thread does not terminate within the given millisecond delay.
754		*/
755	<	public void shouldThrow(String exceptionName) {
756	<	fail("Should throw " + exceptionName);
755	>	void assertThreadStaysAlive(Thread thread, long millis) {
756	>	try {
757	>	// No need to optimize the failing case via Thread.join.
758	>	delay(millis);
759	>	assertTrue(thread.isAlive());
760	>	} catch (InterruptedException fail) {
761	>	fail("Unexpected InterruptedException");
762	>	}
763	>	}
764	>
765	>	/**
766	>	* Checks that the threads do not terminate within the default
767	>	* millisecond delay of {@code timeoutMillis()}.
768	>	*/
769	>	void assertThreadsStayAlive(Thread... threads) {
770	>	assertThreadsStayAlive(timeoutMillis(), threads);
771	>	}
772	>
773	>	/**
774	>	* Checks that the threads do not terminate within the given millisecond delay.
775	>	*/
776	>	void assertThreadsStayAlive(long millis, Thread... threads) {
777	>	try {
778	>	// No need to optimize the failing case via Thread.join.
779	>	delay(millis);
780	>	for (Thread thread : threads)
781	>	assertTrue(thread.isAlive());
782	>	} catch (InterruptedException fail) {
783	>	fail("Unexpected InterruptedException");
784	>	}
785		}
786
787		/**
788	<	* fail with message "Unexpected exception"
788	>	* Checks that future.get times out, with the default timeout of
789	>	* {@code timeoutMillis()}.
790		*/
791	<	public void unexpectedException() {
792	<	fail("Unexpected exception");
791	>	void assertFutureTimesOut(Future future) {
792	>	assertFutureTimesOut(future, timeoutMillis());
793		}
794
795		/**
796	<	* fail with message "Unexpected exception", with argument
796	>	* Checks that future.get times out, with the given millisecond timeout.
797		*/
798	<	public void unexpectedException(Throwable ex) {
799	<	ex.printStackTrace();
800	<	fail("Unexpected exception: " + ex);
798	>	void assertFutureTimesOut(Future future, long timeoutMillis) {
799	>	long startTime = System.nanoTime();
800	>	try {
801	>	future.get(timeoutMillis, MILLISECONDS);
802	>	shouldThrow();
803	>	} catch (TimeoutException success) {
804	>	} catch (Exception fail) {
805	>	threadUnexpectedException(fail);
806	>	} finally { future.cancel(true); }
807	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
808		}
809
810	+	/**
811	+	* Fails with message "should throw exception".
812	+	*/
813	+	public void shouldThrow() {
814	+	fail("Should throw exception");
815	+	}
816	+
817	+	/**
818	+	* Fails with message "should throw " + exceptionName.
819	+	*/
820	+	public void shouldThrow(String exceptionName) {
821	+	fail("Should throw " + exceptionName);
822	+	}
823
824		/**
825		* The number of elements to place in collections, arrays, etc.
#	Line 370 | Line 828 | public class JSR166TestCase extends Test
828
829		// Some convenient Integer constants
830
831	<	public static final Integer zero = new Integer(0);
832	<	public static final Integer one = new Integer(1);
833	<	public static final Integer two = new Integer(2);
834	<	public static final Integer three  = new Integer(3);
831	>	public static final Integer zero  = new Integer(0);
832	>	public static final Integer one   = new Integer(1);
833	>	public static final Integer two   = new Integer(2);
834	>	public static final Integer three = new Integer(3);
835		public static final Integer four  = new Integer(4);
836		public static final Integer five  = new Integer(5);
837	<	public static final Integer six = new Integer(6);
837	>	public static final Integer six   = new Integer(6);
838		public static final Integer seven = new Integer(7);
839		public static final Integer eight = new Integer(8);
840	<	public static final Integer nine = new Integer(9);
840	>	public static final Integer nine  = new Integer(9);
841		public static final Integer m1  = new Integer(-1);
842		public static final Integer m2  = new Integer(-2);
843		public static final Integer m3  = new Integer(-3);
844	<	public static final Integer m4 = new Integer(-4);
845	<	public static final Integer m5 = new Integer(-5);
846	<	public static final Integer m6 = new Integer(-6);
844	>	public static final Integer m4  = new Integer(-4);
845	>	public static final Integer m5  = new Integer(-5);
846	>	public static final Integer m6  = new Integer(-6);
847		public static final Integer m10 = new Integer(-10);
848
849	+	/**
850	+	* Runs Runnable r with a security policy that permits precisely
851	+	* the specified permissions.  If there is no current security
852	+	* manager, the runnable is run twice, both with and without a
853	+	* security manager.  We require that any security manager permit
854	+	* getPolicy/setPolicy.
855	+	*/
856	+	public void runWithPermissions(Runnable r, Permission... permissions) {
857	+	SecurityManager sm = System.getSecurityManager();
858	+	if (sm == null) {
859	+	r.run();
860	+	}
861	+	runWithSecurityManagerWithPermissions(r, permissions);
862	+	}
863	+
864	+	/**
865	+	* Runs Runnable r with a security policy that permits precisely
866	+	* the specified permissions.  If there is no current security
867	+	* manager, a temporary one is set for the duration of the
868	+	* Runnable.  We require that any security manager permit
869	+	* getPolicy/setPolicy.
870	+	*/
871	+	public void runWithSecurityManagerWithPermissions(Runnable r,
872	+	Permission... permissions) {
873	+	SecurityManager sm = System.getSecurityManager();
874	+	if (sm == null) {
875	+	Policy savedPolicy = Policy.getPolicy();
876	+	try {
877	+	Policy.setPolicy(permissivePolicy());
878	+	System.setSecurityManager(new SecurityManager());
879	+	runWithSecurityManagerWithPermissions(r, permissions);
880	+	} finally {
881	+	System.setSecurityManager(null);
882	+	Policy.setPolicy(savedPolicy);
883	+	}
884	+	} else {
885	+	Policy savedPolicy = Policy.getPolicy();
886	+	AdjustablePolicy policy = new AdjustablePolicy(permissions);
887	+	Policy.setPolicy(policy);
888	+
889	+	try {
890	+	r.run();
891	+	} finally {
892	+	policy.addPermission(new SecurityPermission("setPolicy"));
893	+	Policy.setPolicy(savedPolicy);
894	+	}
895	+	}
896	+	}
897	+
898	+	/**
899	+	* Runs a runnable without any permissions.
900	+	*/
901	+	public void runWithoutPermissions(Runnable r) {
902	+	runWithPermissions(r);
903	+	}
904
905		/**
906		* A security policy where new permissions can be dynamically added
#	Line 395 | Line 908 | public class JSR166TestCase extends Test
908		*/
909		public static class AdjustablePolicy extends java.security.Policy {
910		Permissions perms = new Permissions();
911	<	AdjustablePolicy() { }
911	>	AdjustablePolicy(Permission... permissions) {
912	>	for (Permission permission : permissions)
913	>	perms.add(permission);
914	>	}
915		void addPermission(Permission perm) { perms.add(perm); }
916		void clearPermissions() { perms = new Permissions(); }
917		public PermissionCollection getPermissions(CodeSource cs) {
#	Line 408 | Line 924 | public class JSR166TestCase extends Test
924		return perms.implies(p);
925		}
926		public void refresh() {}
927	+	public String toString() {
928	+	List<Permission> ps = new ArrayList<Permission>();
929	+	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
930	+	ps.add(e.nextElement());
931	+	return "AdjustablePolicy with permissions " + ps;
932	+	}
933		}
934
935		/**
936	<	* Sleep until the timeout has elapsed, or interrupted.
415	<	* Does <em>NOT</em> throw InterruptedException.
936	>	* Returns a policy containing all the permissions we ever need.
937		*/
938	<	void sleepTillInterrupted(long timeoutMillis) {
938	>	public static Policy permissivePolicy() {
939	>	return new AdjustablePolicy
940	>	// Permissions j.u.c. needs directly
941	>	(new RuntimePermission("modifyThread"),
942	>	new RuntimePermission("getClassLoader"),
943	>	new RuntimePermission("setContextClassLoader"),
944	>	// Permissions needed to change permissions!
945	>	new SecurityPermission("getPolicy"),
946	>	new SecurityPermission("setPolicy"),
947	>	new RuntimePermission("setSecurityManager"),
948	>	// Permissions needed by the junit test harness
949	>	new RuntimePermission("accessDeclaredMembers"),
950	>	new PropertyPermission("*", "read"),
951	>	new java.io.FilePermission("<<ALL FILES>>", "read"));
952	>	}
953	>
954	>	/**
955	>	* Sleeps until the given time has elapsed.
956	>	* Throws AssertionFailedError if interrupted.
957	>	*/
958	>	void sleep(long millis) {
959		try {
960	<	Thread.sleep(timeoutMillis);
961	<	} catch (InterruptedException wakeup) {}
960	>	delay(millis);
961	>	} catch (InterruptedException fail) {
962	>	AssertionFailedError afe =
963	>	new AssertionFailedError("Unexpected InterruptedException");
964	>	afe.initCause(fail);
965	>	throw afe;
966	>	}
967		}
968
969		/**
970	<	* Returns a new started Thread running the given runnable.
970	>	* Spin-waits up to the specified number of milliseconds for the given
971	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
972	>	*/
973	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
974	>	long startTime = System.nanoTime();
975	>	for (;;) {
976	>	Thread.State s = thread.getState();
977	>	if (s == Thread.State.BLOCKED ||
978	>	s == Thread.State.WAITING ||
979	>	s == Thread.State.TIMED_WAITING)
980	>	return;
981	>	else if (s == Thread.State.TERMINATED)
982	>	fail("Unexpected thread termination");
983	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
984	>	threadAssertTrue(thread.isAlive());
985	>	return;
986	>	}
987	>	Thread.yield();
988	>	}
989	>	}
990	>
991	>	/**
992	>	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
993	>	* state: BLOCKED, WAITING, or TIMED_WAITING.
994	>	*/
995	>	void waitForThreadToEnterWaitState(Thread thread) {
996	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
997	>	}
998	>
999	>	/**
1000	>	* Returns the number of milliseconds since time given by
1001	>	* startNanoTime, which must have been previously returned from a
1002	>	* call to {@link System#nanoTime()}.
1003	>	*/
1004	>	static long millisElapsedSince(long startNanoTime) {
1005	>	return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
1006	>	}
1007	>
1008	>	//     void assertTerminatesPromptly(long timeoutMillis, Runnable r) {
1009	>	//         long startTime = System.nanoTime();
1010	>	//         try {
1011	>	//             r.run();
1012	>	//         } catch (Throwable fail) { threadUnexpectedException(fail); }
1013	>	//         if (millisElapsedSince(startTime) > timeoutMillis/2)
1014	>	//             throw new AssertionFailedError("did not return promptly");
1015	>	//     }
1016	>
1017	>	//     void assertTerminatesPromptly(Runnable r) {
1018	>	//         assertTerminatesPromptly(LONG_DELAY_MS/2, r);
1019	>	//     }
1020	>
1021	>	/**
1022	>	* Checks that timed f.get() returns the expected value, and does not
1023	>	* wait for the timeout to elapse before returning.
1024	>	*/
1025	>	<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
1026	>	long startTime = System.nanoTime();
1027	>	try {
1028	>	assertEquals(expectedValue, f.get(timeoutMillis, MILLISECONDS));
1029	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
1030	>	if (millisElapsedSince(startTime) > timeoutMillis/2)
1031	>	throw new AssertionFailedError("timed get did not return promptly");
1032	>	}
1033	>
1034	>	<T> void checkTimedGet(Future<T> f, T expectedValue) {
1035	>	checkTimedGet(f, expectedValue, LONG_DELAY_MS);
1036	>	}
1037	>
1038	>	/**
1039	>	* Returns a new started daemon Thread running the given runnable.
1040		*/
1041		Thread newStartedThread(Runnable runnable) {
1042		Thread t = new Thread(runnable);
1043	+	t.setDaemon(true);
1044		t.start();
1045		return t;
1046		}
1047
1048	+	/**
1049	+	* Waits for the specified time (in milliseconds) for the thread
1050	+	* to terminate (using {@link Thread#join(long)}), else interrupts
1051	+	* the thread (in the hope that it may terminate later) and fails.
1052	+	*/
1053	+	void awaitTermination(Thread t, long timeoutMillis) {
1054	+	try {
1055	+	t.join(timeoutMillis);
1056	+	} catch (InterruptedException fail) {
1057	+	threadUnexpectedException(fail);
1058	+	} finally {
1059	+	if (t.getState() != Thread.State.TERMINATED) {
1060	+	t.interrupt();
1061	+	fail("Test timed out");
1062	+	}
1063	+	}
1064	+	}
1065	+
1066	+	/**
1067	+	* Waits for LONG_DELAY_MS milliseconds for the thread to
1068	+	* terminate (using {@link Thread#join(long)}), else interrupts
1069	+	* the thread (in the hope that it may terminate later) and fails.
1070	+	*/
1071	+	void awaitTermination(Thread t) {
1072	+	awaitTermination(t, LONG_DELAY_MS);
1073	+	}
1074	+
1075		// Some convenient Runnable classes
1076
1077		public abstract class CheckedRunnable implements Runnable {
#	Line 437 | Line 1080 | public class JSR166TestCase extends Test
1080		public final void run() {
1081		try {
1082		realRun();
1083	<	} catch (Throwable t) {
1084	<	threadUnexpectedException(t);
1083	>	} catch (Throwable fail) {
1084	>	threadUnexpectedException(fail);
1085		}
1086		}
1087		}
#	Line 491 | Line 1134 | public class JSR166TestCase extends Test
1134		realRun();
1135		threadShouldThrow("InterruptedException");
1136		} catch (InterruptedException success) {
1137	<	} catch (Throwable t) {
1138	<	threadUnexpectedException(t);
1137	>	threadAssertFalse(Thread.interrupted());
1138	>	} catch (Throwable fail) {
1139	>	threadUnexpectedException(fail);
1140		}
1141		}
1142		}
#	Line 503 | Line 1147 | public class JSR166TestCase extends Test
1147		public final T call() {
1148		try {
1149		return realCall();
1150	<	} catch (Throwable t) {
1151	<	threadUnexpectedException(t);
1150	>	} catch (Throwable fail) {
1151	>	threadUnexpectedException(fail);
1152	>	return null;
1153		}
509	–	return null;
1154		}
1155		}
1156
1157	<	public abstract class CheckedInterruptedCallable<T> implements Callable<T> {
1157	>	public abstract class CheckedInterruptedCallable<T>
1158	>	implements Callable<T> {
1159		protected abstract T realCall() throws Throwable;
1160
1161		public final T call() {
#	Line 519 | Line 1164 | public class JSR166TestCase extends Test
1164		threadShouldThrow("InterruptedException");
1165		return result;
1166		} catch (InterruptedException success) {
1167	<	} catch (Throwable t) {
1168	<	threadUnexpectedException(t);
1167	>	threadAssertFalse(Thread.interrupted());
1168	>	} catch (Throwable fail) {
1169	>	threadUnexpectedException(fail);
1170		}
1171		return null;
1172		}
#	Line 540 | Line 1186 | public class JSR166TestCase extends Test
1186		public String call() { return TEST_STRING; }
1187		}
1188
1189	+	public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
1190	+	return new CheckedCallable<String>() {
1191	+	protected String realCall() {
1192	+	try {
1193	+	latch.await();
1194	+	} catch (InterruptedException quittingTime) {}
1195	+	return TEST_STRING;
1196	+	}};
1197	+	}
1198	+
1199	+	public Runnable awaiter(final CountDownLatch latch) {
1200	+	return new CheckedRunnable() {
1201	+	public void realRun() throws InterruptedException {
1202	+	await(latch);
1203	+	}};
1204	+	}
1205	+
1206	+	public void await(CountDownLatch latch) {
1207	+	try {
1208	+	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1209	+	} catch (Throwable fail) {
1210	+	threadUnexpectedException(fail);
1211	+	}
1212	+	}
1213	+
1214	+	public void await(Semaphore semaphore) {
1215	+	try {
1216	+	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1217	+	} catch (Throwable fail) {
1218	+	threadUnexpectedException(fail);
1219	+	}
1220	+	}
1221	+
1222	+	//     /**
1223	+	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1224	+	//      */
1225	+	//     public void await(AtomicBoolean flag) {
1226	+	//         await(flag, LONG_DELAY_MS);
1227	+	//     }
1228	+
1229	+	//     /**
1230	+	//      * Spin-waits up to the specified timeout until flag becomes true.
1231	+	//      */
1232	+	//     public void await(AtomicBoolean flag, long timeoutMillis) {
1233	+	//         long startTime = System.nanoTime();
1234	+	//         while (!flag.get()) {
1235	+	//             if (millisElapsedSince(startTime) > timeoutMillis)
1236	+	//                 throw new AssertionFailedError("timed out");
1237	+	//             Thread.yield();
1238	+	//         }
1239	+	//     }
1240	+
1241		public static class NPETask implements Callable<String> {
1242		public String call() { throw new NullPointerException(); }
1243		}
#	Line 550 | Line 1248 | public class JSR166TestCase extends Test
1248
1249		public class ShortRunnable extends CheckedRunnable {
1250		protected void realRun() throws Throwable {
1251	<	Thread.sleep(SHORT_DELAY_MS);
1251	>	delay(SHORT_DELAY_MS);
1252		}
1253		}
1254
1255		public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1256		protected void realRun() throws InterruptedException {
1257	<	Thread.sleep(SHORT_DELAY_MS);
1257	>	delay(SHORT_DELAY_MS);
1258		}
1259		}
1260
1261		public class SmallRunnable extends CheckedRunnable {
1262		protected void realRun() throws Throwable {
1263	<	Thread.sleep(SMALL_DELAY_MS);
1263	>	delay(SMALL_DELAY_MS);
1264		}
1265		}
1266
1267		public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1268		protected void realRun() {
1269		try {
1270	<	Thread.sleep(SMALL_DELAY_MS);
1270	>	delay(SMALL_DELAY_MS);
1271		} catch (InterruptedException ok) {}
1272		}
1273		}
1274
1275		public class SmallCallable extends CheckedCallable {
1276		protected Object realCall() throws InterruptedException {
1277	<	Thread.sleep(SMALL_DELAY_MS);
1277	>	delay(SMALL_DELAY_MS);
1278		return Boolean.TRUE;
1279		}
1280		}
1281
584	–	public class SmallInterruptedRunnable extends CheckedInterruptedRunnable {
585	–	protected void realRun() throws InterruptedException {
586	–	Thread.sleep(SMALL_DELAY_MS);
587	–	}
588	–	}
589	–
1282		public class MediumRunnable extends CheckedRunnable {
1283		protected void realRun() throws Throwable {
1284	<	Thread.sleep(MEDIUM_DELAY_MS);
1284	>	delay(MEDIUM_DELAY_MS);
1285		}
1286		}
1287
1288		public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1289		protected void realRun() throws InterruptedException {
1290	<	Thread.sleep(MEDIUM_DELAY_MS);
1290	>	delay(MEDIUM_DELAY_MS);
1291		}
1292		}
1293
1294	+	public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1295	+	return new CheckedRunnable() {
1296	+	protected void realRun() {
1297	+	try {
1298	+	delay(timeoutMillis);
1299	+	} catch (InterruptedException ok) {}
1300	+	}};
1301	+	}
1302	+
1303		public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1304		protected void realRun() {
1305		try {
1306	<	Thread.sleep(MEDIUM_DELAY_MS);
1306	>	delay(MEDIUM_DELAY_MS);
1307		} catch (InterruptedException ok) {}
1308		}
1309		}
#	Line 610 | Line 1311 | public class JSR166TestCase extends Test
1311		public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1312		protected void realRun() {
1313		try {
1314	<	Thread.sleep(LONG_DELAY_MS);
1314	>	delay(LONG_DELAY_MS);
1315		} catch (InterruptedException ok) {}
1316		}
1317		}
#	Line 624 | Line 1325 | public class JSR166TestCase extends Test
1325		}
1326		}
1327
1328	+	public interface TrackedRunnable extends Runnable {
1329	+	boolean isDone();
1330	+	}
1331	+
1332	+	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1333	+	return new TrackedRunnable() {
1334	+	private volatile boolean done = false;
1335	+	public boolean isDone() { return done; }
1336	+	public void run() {
1337	+	try {
1338	+	delay(timeoutMillis);
1339	+	done = true;
1340	+	} catch (InterruptedException ok) {}
1341	+	}
1342	+	};
1343	+	}
1344	+
1345		public static class TrackedShortRunnable implements Runnable {
1346		public volatile boolean done = false;
1347		public void run() {
1348		try {
1349	<	Thread.sleep(SMALL_DELAY_MS);
1349	>	delay(SHORT_DELAY_MS);
1350	>	done = true;
1351	>	} catch (InterruptedException ok) {}
1352	>	}
1353	>	}
1354	>
1355	>	public static class TrackedSmallRunnable implements Runnable {
1356	>	public volatile boolean done = false;
1357	>	public void run() {
1358	>	try {
1359	>	delay(SMALL_DELAY_MS);
1360		done = true;
1361		} catch (InterruptedException ok) {}
1362		}
#	Line 638 | Line 1366 | public class JSR166TestCase extends Test
1366		public volatile boolean done = false;
1367		public void run() {
1368		try {
1369	<	Thread.sleep(MEDIUM_DELAY_MS);
1369	>	delay(MEDIUM_DELAY_MS);
1370		done = true;
1371		} catch (InterruptedException ok) {}
1372		}
#	Line 648 | Line 1376 | public class JSR166TestCase extends Test
1376		public volatile boolean done = false;
1377		public void run() {
1378		try {
1379	<	Thread.sleep(LONG_DELAY_MS);
1379	>	delay(LONG_DELAY_MS);
1380		done = true;
1381		} catch (InterruptedException ok) {}
1382		}
#	Line 665 | Line 1393 | public class JSR166TestCase extends Test
1393		public volatile boolean done = false;
1394		public Object call() {
1395		try {
1396	<	Thread.sleep(SMALL_DELAY_MS);
1396	>	delay(SMALL_DELAY_MS);
1397		done = true;
1398		} catch (InterruptedException ok) {}
1399		return Boolean.TRUE;
1400		}
1401		}
1402
1403	+	/**
1404	+	* Analog of CheckedRunnable for RecursiveAction
1405	+	*/
1406	+	public abstract class CheckedRecursiveAction extends RecursiveAction {
1407	+	protected abstract void realCompute() throws Throwable;
1408	+
1409	+	@Override protected final void compute() {
1410	+	try {
1411	+	realCompute();
1412	+	} catch (Throwable fail) {
1413	+	threadUnexpectedException(fail);
1414	+	}
1415	+	}
1416	+	}
1417	+
1418	+	/**
1419	+	* Analog of CheckedCallable for RecursiveTask
1420	+	*/
1421	+	public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1422	+	protected abstract T realCompute() throws Throwable;
1423	+
1424	+	@Override protected final T compute() {
1425	+	try {
1426	+	return realCompute();
1427	+	} catch (Throwable fail) {
1428	+	threadUnexpectedException(fail);
1429	+	return null;
1430	+	}
1431	+	}
1432	+	}
1433
1434		/**
1435		* For use as RejectedExecutionHandler in constructors
#	Line 681 | Line 1439 | public class JSR166TestCase extends Test
1439		ThreadPoolExecutor executor) {}
1440		}
1441
1442	+	/**
1443	+	* A CyclicBarrier that uses timed await and fails with
1444	+	* AssertionFailedErrors instead of throwing checked exceptions.
1445	+	*/
1446	+	public class CheckedBarrier extends CyclicBarrier {
1447	+	public CheckedBarrier(int parties) { super(parties); }
1448	+
1449	+	public int await() {
1450	+	try {
1451	+	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1452	+	} catch (TimeoutException timedOut) {
1453	+	throw new AssertionFailedError("timed out");
1454	+	} catch (Exception fail) {
1455	+	AssertionFailedError afe =
1456	+	new AssertionFailedError("Unexpected exception: " + fail);
1457	+	afe.initCause(fail);
1458	+	throw afe;
1459	+	}
1460	+	}
1461	+	}
1462	+
1463	+	void checkEmpty(BlockingQueue q) {
1464	+	try {
1465	+	assertTrue(q.isEmpty());
1466	+	assertEquals(0, q.size());
1467	+	assertNull(q.peek());
1468	+	assertNull(q.poll());
1469	+	assertNull(q.poll(0, MILLISECONDS));
1470	+	assertEquals(q.toString(), "[]");
1471	+	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1472	+	assertFalse(q.iterator().hasNext());
1473	+	try {
1474	+	q.element();
1475	+	shouldThrow();
1476	+	} catch (NoSuchElementException success) {}
1477	+	try {
1478	+	q.iterator().next();
1479	+	shouldThrow();
1480	+	} catch (NoSuchElementException success) {}
1481	+	try {
1482	+	q.remove();
1483	+	shouldThrow();
1484	+	} catch (NoSuchElementException success) {}
1485	+	} catch (InterruptedException fail) { threadUnexpectedException(fail); }
1486	+	}
1487	+
1488	+	void assertSerialEquals(Object x, Object y) {
1489	+	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1490	+	}
1491	+
1492	+	void assertNotSerialEquals(Object x, Object y) {
1493	+	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1494	+	}
1495	+
1496	+	byte[] serialBytes(Object o) {
1497	+	try {
1498	+	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1499	+	ObjectOutputStream oos = new ObjectOutputStream(bos);
1500	+	oos.writeObject(o);
1501	+	oos.flush();
1502	+	oos.close();
1503	+	return bos.toByteArray();
1504	+	} catch (Throwable fail) {
1505	+	threadUnexpectedException(fail);
1506	+	return new byte[0];
1507	+	}
1508	+	}
1509	+
1510	+	@SuppressWarnings("unchecked")
1511	+	<T> T serialClone(T o) {
1512	+	try {
1513	+	ObjectInputStream ois = new ObjectInputStream
1514	+	(new ByteArrayInputStream(serialBytes(o)));
1515	+	T clone = (T) ois.readObject();
1516	+	assertSame(o.getClass(), clone.getClass());
1517	+	return clone;
1518	+	} catch (Throwable fail) {
1519	+	threadUnexpectedException(fail);
1520	+	return null;
1521	+	}
1522	+	}
1523	+
1524	+	public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1525	+	Runnable... throwingActions) {
1526	+	for (Runnable throwingAction : throwingActions) {
1527	+	boolean threw = false;
1528	+	try { throwingAction.run(); }
1529	+	catch (Throwable t) {
1530	+	threw = true;
1531	+	if (!expectedExceptionClass.isInstance(t)) {
1532	+	AssertionFailedError afe =
1533	+	new AssertionFailedError
1534	+	("Expected " + expectedExceptionClass.getName() +
1535	+	", got " + t.getClass().getName());
1536	+	afe.initCause(t);
1537	+	threadUnexpectedException(afe);
1538	+	}
1539	+	}
1540	+	if (!threw)
1541	+	shouldThrow(expectedExceptionClass.getName());
1542	+	}
1543	+	}
1544	+
1545	+	public void assertIteratorExhausted(Iterator<?> it) {
1546	+	try {
1547	+	it.next();
1548	+	shouldThrow();
1549	+	} catch (NoSuchElementException success) {}
1550	+	assertFalse(it.hasNext());
1551	+	}
1552		}

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