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Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.4 by dl, Thu Sep 25 11:02:41 2003 UTC vs.
Revision 1.134 by jsr166, Sun Jun 14 20:58:14 2015 UTC

#	Line 1 | Line 1
1		/*
2	<	* Written by members of JCP JSR-166 Expert Group and released to the
3	<	* public domain. Use, modify, and redistribute this code in any way
4	<	* without acknowledgement. Other contributors include Andrew Wright,
5	<	* Jeffrey Hayes, Pat Fischer, Mike Judd.
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/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.*;
10	<	import java.util.concurrent.*;
11	<	import java.io.*;
9	>	import static java.util.concurrent.TimeUnit.MILLISECONDS;
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 and
60	<	* utility methods, as well as a simple framework for helping to make
61	<	* sure that assertions failing in generated threads cause the
62	<	* associated test that generated them to itself fail (which JUnit doe
63	<	* not otherwise arrange).  The rules for creating such tests are:
59	>	* Base class for JSR166 Junit TCK tests.  Defines some constants,
60	>	* utility methods and classes, as well as a simple framework for
61	>	* helping to make sure that assertions failing in generated threads
62	>	* cause the associated test that generated them to itself fail (which
63	>	* JUnit does not otherwise arrange).  The rules for creating such
64	>	* tests are:
65		*
66		* <ol>
67		*
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
69	>	* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link
70	>	* #threadAssertEquals}, or {@link #threadAssertNull}, (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
76	>	* <li> If you override {@link #setUp} or {@link #tearDown}, make sure
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 {@link
82	<	* SHORT_DELAY_MS}, {@link SMALL_DELAY_MS}, {@link MEDIUM_DELAY_MS},
83	<	* {@link LONG_DELAY_MS}. The idea here is that a SHORT is always
84	<	* discriminatable from zero time, and always allows enough time for
85	<	* the small amounts of computation (creating a thread, calling a few
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
87		* is always discriminable as larger than SHORT and smaller than
88		* MEDIUM.  And so on. These constants are set to conservative values,
89		* but even so, if there is ever any doubt, they can all be increased
90	<	* in one spot to rerun tests on slower platforms</li>
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 {@link joinPool} 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>
100	+	* <ul>
101	+	*
102	+	* <li> Usually, there is one testcase method per JSR166 method
103	+	* covering "normal" operation, and then as many exception-testing
104	+	* methods as there are exceptions the method can throw. Sometimes
105	+	* there are multiple tests per JSR166 method when the different
106	+	* "normal" behaviors differ significantly. And sometimes testcases
107	+	* cover multiple methods when they cannot be tested in
108	+	* isolation.</li>
109	+	*
110	+	* <li> The documentation style for testcases is to provide as javadoc
111	+	* a simple sentence or two describing the property that the testcase
112	+	* method purports to test. The javadocs do not say anything about how
113	+	* the property is tested. To find out, read the code.</li>
114	+	*
115	+	* <li> These tests are "conformance tests", and do not attempt to
116	+	* test throughput, latency, scalability or other performance factors
117	+	* (see the separate "jtreg" tests for a set intended to check these
118	+	* for the most central aspects of functionality.) So, most tests use
119	+	* the smallest sensible numbers of threads, collection sizes, etc
120	+	* needed to check basic conformance.</li>
121	+	*
122	+	* <li>The test classes currently do not declare inclusion in
123	+	* any particular package to simplify things for people integrating
124	+	* them in TCK test suites.</li>
125	+	*
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	+	* 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	+	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	+	}
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.
288	+	*/
289	+	public static Test suite() {
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
61	–
457		/**
458	<	* Return the shortest timed delay. This could
459	<	* be reimplmented to use for example a Property.
460	<	*/
458	>	* Returns the shortest timed delay. This could
459	>	* be reimplemented to use for example a Property.
460	>	*/
461		protected long getShortDelay() {
462	<	return 100;
462	>	return 50;
463		}
464
70	–
465		/**
466	<	* Set delays as multiples fo SHORT_DELAY.
466	>	* Sets delays as multiples of SHORT_DELAY.
467		*/
468	<	protected  void setDelays() {
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	<	* Flag set true if any threadAssert methods fail
484	>	* Returns a new Date instance representing a time delayMillis
485	>	* milliseconds in the future.
486		*/
487	<	protected volatile boolean threadFailed;
487	>	Date delayedDate(long delayMillis) {
488	>	return new Date(System.currentTimeMillis() + delayMillis);
489	>	}
490
491		/**
492	<	* Initialize test to indicate that no thread assertions have failed
492	>	* The first exception encountered if any threadAssertXXX method fails.
493		*/
494	<	public void setUp() {
494	>	private final AtomicReference<Throwable> threadFailure
495	>	= new AtomicReference<Throwable>(null);
496	>
497	>	/**
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();
91	–	threadFailed = false;
509		}
510
511		/**
512	<	* Trigger 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() {
521	<	assertFalse(threadFailed);
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	+	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	+	* 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	+	* 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) {
108	<	threadFailed = true;
583	>	try {
584		assertTrue(b);
585	+	} catch (AssertionFailedError t) {
586	+	threadRecordFailure(t);
587	+	throw t;
588		}
589		}
590	+
591	+	/**
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) {
114	<	threadFailed = true;
597	>	try {
598		assertFalse(b);
599	+	} catch (AssertionFailedError t) {
600	+	threadRecordFailure(t);
601	+	throw t;
602		}
603		}
604	+
605	+	/**
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) {
120	<	threadFailed = true;
611	>	try {
612		assertNull(x);
613	+	} catch (AssertionFailedError t) {
614	+	threadRecordFailure(t);
615	+	throw t;
616		}
617		}
618	+
619	+	/**
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) {
126	<	threadFailed = true;
625	>	try {
626		assertEquals(x, y);
627	+	} catch (AssertionFailedError t) {
628	+	threadRecordFailure(t);
629	+	throw t;
630		}
631		}
632	+
633	+	/**
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))) {
132	<	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	+	* Calls threadFail with message "should throw exception".
665	+	*/
666		public void threadShouldThrow() {
667	<	threadFailed = true;
668	<	fail("should throw exception");
667	>	threadFail("should throw exception");
668	>	}
669	>
670	>	/**
671	>	* Calls threadFail with message "should throw" + exceptionName.
672	>	*/
673	>	public void threadShouldThrow(String exceptionName) {
674	>	threadFail("should throw " + exceptionName);
675		}
676
677	<	public void threadUnexpectedException() {
678	<	threadFailed = true;
679	<	fail("Unexpected exception");
677	>	/**
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(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	+	* 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	+	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, TimeUnit.MILLISECONDS));
725	<	} catch(InterruptedException ie) {
726	<	fail("Unexpected exception");
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 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	>	* Checks that thread does not terminate within the default
746	>	* millisecond delay of {@code timeoutMillis()}.
747	>	*/
748	>	void assertThreadStaysAlive(Thread thread) {
749	>	assertThreadStaysAlive(thread, timeoutMillis());
750	>	}
751	>
752	>	/**
753	>	* Checks that thread does not terminate within the given millisecond delay.
754	>	*/
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	<
787	>	/**
788	>	* Checks that future.get times out, with the default timeout of
789	>	* {@code timeoutMillis()}.
790	>	*/
791	>	void assertFutureTimesOut(Future future) {
792	>	assertFutureTimesOut(future, timeoutMillis());
793	>	}
794	>
795	>	/**
796	>	* Checks that future.get times out, with the given millisecond timeout.
797	>	*/
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	<	public void unexpectedException() {
818	<	fail("Unexpected exception");
817	>	/**
818	>	* Fails with message "should throw " + exceptionName.
819	>	*/
820	>	public void shouldThrow(String exceptionName) {
821	>	fail("Should throw " + exceptionName);
822		}
823
169	–
824		/**
825		* The number of elements to place in collections, arrays, etc.
826		*/
#	Line 174 | 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);
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	<	// Some convenient Runnable classes
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	<	public static class NoOpRunnable implements Runnable {
890	<	public void run() {}
889	>	try {
890	>	r.run();
891	>	} finally {
892	>	policy.addPermission(new SecurityPermission("setPolicy"));
893	>	Policy.setPolicy(savedPolicy);
894	>	}
895	>	}
896		}
897
898	<	public static class NoOpCallable implements Callable {
899	<	public Object call() { return Boolean.TRUE; }
898	>	/**
899	>	* Runs a runnable without any permissions.
900	>	*/
901	>	public void runWithoutPermissions(Runnable r) {
902	>	runWithPermissions(r);
903		}
904
905	<	public class ShortRunnable implements Runnable {
906	<	public void run() {
907	<	try {
908	<	Thread.sleep(SHORT_DELAY_MS);
905	>	/**
906	>	* A security policy where new permissions can be dynamically added
907	>	* or all cleared.
908	>	*/
909	>	public static class AdjustablePolicy extends java.security.Policy {
910	>	Permissions perms = new Permissions();
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) {
918	>	return perms;
919	>	}
920	>	public PermissionCollection getPermissions(ProtectionDomain pd) {
921	>	return perms;
922	>	}
923	>	public boolean implies(ProtectionDomain pd, Permission p) {
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	>	* Returns a policy containing all the permissions we ever need.
937	>	*/
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	>	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	>	* 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	<	catch(Exception e) {
988	<	threadUnexpectedException();
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	<	public class ShortInterruptedRunnable implements Runnable {
1067	<	public void run() {
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 {
1078	>	protected abstract void realRun() throws Throwable;
1079	>
1080	>	public final void run() {
1081		try {
1082	<	Thread.sleep(SHORT_DELAY_MS);
1083	<	threadShouldThrow();
1082	>	realRun();
1083	>	} catch (Throwable fail) {
1084	>	threadUnexpectedException(fail);
1085		}
1086	<	catch(InterruptedException success) {
1086	>	}
1087	>	}
1088	>
1089	>	public abstract class RunnableShouldThrow implements Runnable {
1090	>	protected abstract void realRun() throws Throwable;
1091	>
1092	>	final Class<?> exceptionClass;
1093	>
1094	>	<T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) {
1095	>	this.exceptionClass = exceptionClass;
1096	>	}
1097	>
1098	>	public final void run() {
1099	>	try {
1100	>	realRun();
1101	>	threadShouldThrow(exceptionClass.getSimpleName());
1102	>	} catch (Throwable t) {
1103	>	if (! exceptionClass.isInstance(t))
1104	>	threadUnexpectedException(t);
1105		}
1106		}
1107		}
1108
1109	<	public class SmallRunnable implements Runnable {
1110	<	public void run() {
1109	>	public abstract class ThreadShouldThrow extends Thread {
1110	>	protected abstract void realRun() throws Throwable;
1111	>
1112	>	final Class<?> exceptionClass;
1113	>
1114	>	<T extends Throwable> ThreadShouldThrow(Class<T> exceptionClass) {
1115	>	this.exceptionClass = exceptionClass;
1116	>	}
1117	>
1118	>	public final void run() {
1119		try {
1120	<	Thread.sleep(SMALL_DELAY_MS);
1120	>	realRun();
1121	>	threadShouldThrow(exceptionClass.getSimpleName());
1122	>	} catch (Throwable t) {
1123	>	if (! exceptionClass.isInstance(t))
1124	>	threadUnexpectedException(t);
1125		}
1126	<	catch(Exception e) {
1127	<	threadUnexpectedException();
1126	>	}
1127	>	}
1128	>
1129	>	public abstract class CheckedInterruptedRunnable implements Runnable {
1130	>	protected abstract void realRun() throws Throwable;
1131	>
1132	>	public final void run() {
1133	>	try {
1134	>	realRun();
1135	>	threadShouldThrow("InterruptedException");
1136	>	} catch (InterruptedException success) {
1137	>	threadAssertFalse(Thread.interrupted());
1138	>	} catch (Throwable fail) {
1139	>	threadUnexpectedException(fail);
1140		}
1141		}
1142		}
1143
1144	<	public class SmallCallable implements Callable {
1145	<	public Object call() {
1144	>	public abstract class CheckedCallable<T> implements Callable<T> {
1145	>	protected abstract T realCall() throws Throwable;
1146	>
1147	>	public final T call() {
1148		try {
1149	<	Thread.sleep(SMALL_DELAY_MS);
1149	>	return realCall();
1150	>	} catch (Throwable fail) {
1151	>	threadUnexpectedException(fail);
1152	>	return null;
1153		}
1154	<	catch(Exception e) {
1155	<	threadUnexpectedException();
1154	>	}
1155	>	}
1156	>
1157	>	public abstract class CheckedInterruptedCallable<T>
1158	>	implements Callable<T> {
1159	>	protected abstract T realCall() throws Throwable;
1160	>
1161	>	public final T call() {
1162	>	try {
1163	>	T result = realCall();
1164	>	threadShouldThrow("InterruptedException");
1165	>	return result;
1166	>	} catch (InterruptedException success) {
1167	>	threadAssertFalse(Thread.interrupted());
1168	>	} catch (Throwable fail) {
1169	>	threadUnexpectedException(fail);
1170		}
1171	+	return null;
1172	+	}
1173	+	}
1174	+
1175	+	public static class NoOpRunnable implements Runnable {
1176	+	public void run() {}
1177	+	}
1178	+
1179	+	public static class NoOpCallable implements Callable {
1180	+	public Object call() { return Boolean.TRUE; }
1181	+	}
1182	+
1183	+	public static final String TEST_STRING = "a test string";
1184	+
1185	+	public static class StringTask implements Callable<String> {
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	+	}
1244	+
1245	+	public static class CallableOne implements Callable<Integer> {
1246	+	public Integer call() { return one; }
1247	+	}
1248	+
1249	+	public class ShortRunnable extends CheckedRunnable {
1250	+	protected void realRun() throws Throwable {
1251	+	delay(SHORT_DELAY_MS);
1252	+	}
1253	+	}
1254	+
1255	+	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1256	+	protected void realRun() throws InterruptedException {
1257	+	delay(SHORT_DELAY_MS);
1258	+	}
1259	+	}
1260	+
1261	+	public class SmallRunnable extends CheckedRunnable {
1262	+	protected void realRun() throws Throwable {
1263	+	delay(SMALL_DELAY_MS);
1264	+	}
1265	+	}
1266	+
1267	+	public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1268	+	protected void realRun() {
1269	+	try {
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	+	delay(SMALL_DELAY_MS);
1278		return Boolean.TRUE;
1279		}
1280		}
1281
1282	<	public class SmallInterruptedRunnable implements Runnable {
1282	>	public class MediumRunnable extends CheckedRunnable {
1283	>	protected void realRun() throws Throwable {
1284	>	delay(MEDIUM_DELAY_MS);
1285	>	}
1286	>	}
1287	>
1288	>	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1289	>	protected void realRun() throws InterruptedException {
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	>	delay(MEDIUM_DELAY_MS);
1307	>	} catch (InterruptedException ok) {}
1308	>	}
1309	>	}
1310	>
1311	>	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1312	>	protected void realRun() {
1313	>	try {
1314	>	delay(LONG_DELAY_MS);
1315	>	} catch (InterruptedException ok) {}
1316	>	}
1317	>	}
1318	>
1319	>	/**
1320	>	* For use as ThreadFactory in constructors
1321	>	*/
1322	>	public static class SimpleThreadFactory implements ThreadFactory {
1323	>	public Thread newThread(Runnable r) {
1324	>	return new Thread(r);
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);
1350	<	threadShouldThrow();
1351	<	}
256	<	catch(InterruptedException success) {
257	<	}
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	+	}
1363	+	}
1364
1365	<	public class MediumRunnable implements Runnable {
1365	>	public static class TrackedMediumRunnable implements Runnable {
1366	>	public volatile boolean done = false;
1367		public void run() {
1368		try {
1369	<	Thread.sleep(MEDIUM_DELAY_MS);
1370	<	}
1371	<	catch(Exception e) {
1372	<	threadUnexpectedException();
1373	<	}
1369	>	delay(MEDIUM_DELAY_MS);
1370	>	done = true;
1371	>	} catch (InterruptedException ok) {}
1372	>	}
1373	>	}
1374	>
1375	>	public static class TrackedLongRunnable implements Runnable {
1376	>	public volatile boolean done = false;
1377	>	public void run() {
1378	>	try {
1379	>	delay(LONG_DELAY_MS);
1380	>	done = true;
1381	>	} catch (InterruptedException ok) {}
1382		}
1383		}
1384
1385	<	public class MediumInterruptedRunnable implements Runnable {
1385	>	public static class TrackedNoOpRunnable implements Runnable {
1386	>	public volatile boolean done = false;
1387		public void run() {
1388	+	done = true;
1389	+	}
1390	+	}
1391	+
1392	+	public static class TrackedCallable implements Callable {
1393	+	public volatile boolean done = false;
1394	+	public Object call() {
1395	+	try {
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	<	Thread.sleep(MEDIUM_DELAY_MS);
1412	<	threadShouldThrow();
1411	>	realCompute();
1412	>	} catch (Throwable fail) {
1413	>	threadUnexpectedException(fail);
1414		}
1415	<	catch(InterruptedException success) {
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	<	public class MediumPossiblyInterruptedRunnable implements Runnable {
1435	<	public void run() {
1434	>	/**
1435	>	* For use as RejectedExecutionHandler in constructors
1436	>	*/
1437	>	public static class NoOpREHandler implements RejectedExecutionHandler {
1438	>	public void rejectedExecution(Runnable r,
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	<	Thread.sleep(MEDIUM_DELAY_MS);
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	<	catch(InterruptedException success) {
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	<
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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