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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.32 by dl, Fri Jul 31 23:02:49 2009 UTC vs.
Revision 1.127 by jsr166, Sat Jan 17 23:14:17 2015 UTC

#	Line 1 | Line 1
1		/*
2		* Written by Doug Lea with assistance from members of JCP JSR-166
3		* Expert Group and released to the public domain, as explained at
4	<	* http://creativecommons.org/licenses/publicdomain
4	>	* http://creativecommons.org/publicdomain/zero/1.0/
5		* Other contributors include Andrew Wright, Jeffrey Hayes,
6		* Pat Fisher, Mike Judd.
7		*/
8
9	<	import junit.framework.*;
10	<	import java.util.*;
11	<	import java.util.concurrent.*;
12	<	import java.io.*;
13	<	import java.security.*;
9	>	import static java.util.concurrent.TimeUnit.MILLISECONDS;
10	>	import static java.util.concurrent.TimeUnit.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.Method;
19	>	import java.security.CodeSource;
20	>	import java.security.Permission;
21	>	import java.security.PermissionCollection;
22	>	import java.security.Permissions;
23	>	import java.security.Policy;
24	>	import java.security.ProtectionDomain;
25	>	import java.security.SecurityPermission;
26	>	import java.util.ArrayList;
27	>	import java.util.Arrays;
28	>	import java.util.Date;
29	>	import java.util.Enumeration;
30	>	import java.util.Iterator;
31	>	import java.util.List;
32	>	import java.util.NoSuchElementException;
33	>	import java.util.PropertyPermission;
34	>	import java.util.concurrent.BlockingQueue;
35	>	import java.util.concurrent.Callable;
36	>	import java.util.concurrent.CountDownLatch;
37	>	import java.util.concurrent.CyclicBarrier;
38	>	import java.util.concurrent.ExecutorService;
39	>	import java.util.concurrent.Future;
40	>	import java.util.concurrent.RecursiveAction;
41	>	import java.util.concurrent.RecursiveTask;
42	>	import java.util.concurrent.RejectedExecutionHandler;
43	>	import java.util.concurrent.Semaphore;
44	>	import java.util.concurrent.ThreadFactory;
45	>	import java.util.concurrent.ThreadPoolExecutor;
46	>	import java.util.concurrent.TimeoutException;
47	>	import java.util.concurrent.atomic.AtomicReference;
48	>	import java.util.regex.Pattern;
49	>
50	>	import junit.framework.AssertionFailedError;
51	>	import junit.framework.Test;
52	>	import junit.framework.TestCase;
53	>	import junit.framework.TestSuite;
54
55		/**
56		* Base class for JSR166 Junit TCK tests.  Defines some constants,
#	Line 25 | Line 65 | import java.security.*;
65		* <li> All assertions in code running in generated threads must use
66		* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link
67		* #threadAssertEquals}, or {@link #threadAssertNull}, (not
68	<	* <tt>fail</tt>, <tt>assertTrue</tt>, etc.) It is OK (but not
68	>	* {@code fail}, {@code assertTrue}, etc.) It is OK (but not
69		* particularly recommended) for other code to use these forms too.
70		* Only the most typically used JUnit assertion methods are defined
71		* this way, but enough to live with.</li>
72		*
73		* <li> If you override {@link #setUp} or {@link #tearDown}, make sure
74	<	* to invoke <tt>super.setUp</tt> and <tt>super.tearDown</tt> within
74	>	* to invoke {@code super.setUp} and {@code super.tearDown} within
75		* them. These methods are used to clear and check for thread
76		* assertion failures.</li>
77		*
78	<	* <li>All delays and timeouts must use one of the constants <tt>
79	<	* SHORT_DELAY_MS</tt>, <tt> SMALL_DELAY_MS</tt>, <tt> MEDIUM_DELAY_MS</tt>,
80	<	* <tt> LONG_DELAY_MS</tt>. The idea here is that a SHORT is always
78	>	* <li>All delays and timeouts must use one of the constants {@code
79	>	* SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS},
80	>	* {@code LONG_DELAY_MS}. The idea here is that a SHORT is always
81		* discriminable from zero time, and always allows enough time for the
82		* small amounts of computation (creating a thread, calling a few
83		* methods, etc) needed to reach a timeout point. Similarly, a SMALL
#	Line 47 | Line 87 | import java.security.*;
87		* in one spot to rerun tests on slower platforms.</li>
88		*
89		* <li> All threads generated must be joined inside each test case
90	<	* method (or <tt>fail</tt> to do so) before returning from the
91	<	* method. The <tt> joinPool</tt> method can be used to do this when
90	>	* method (or {@code fail} to do so) before returning from the
91	>	* method. The {@code joinPool} method can be used to do this when
92		* using Executors.</li>
93		*
94		* </ol>
95		*
96	<	* <p> <b>Other notes</b>
96	>	* <p><b>Other notes</b>
97		* <ul>
98		*
99		* <li> Usually, there is one testcase method per JSR166 method
#	Line 80 | Line 120 | import java.security.*;
120		* any particular package to simplify things for people integrating
121		* them in TCK test suites.</li>
122		*
123	<	* <li> As a convenience, the <tt>main</tt> of this class (JSR166TestCase)
123	>	* <li> As a convenience, the {@code main} of this class (JSR166TestCase)
124		* runs all JSR166 unit tests.</li>
125		*
126		* </ul>
127		*/
128		public class JSR166TestCase extends TestCase {
129	+	private static final boolean useSecurityManager =
130	+	Boolean.getBoolean("jsr166.useSecurityManager");
131	+
132	+	protected static final boolean expensiveTests =
133	+	Boolean.getBoolean("jsr166.expensiveTests");
134	+
135	+	/**
136	+	* If true, also run tests that are not part of the official tck
137	+	* because they test unspecified implementation details.
138	+	*/
139	+	protected static final boolean testImplementationDetails =
140	+	Boolean.getBoolean("jsr166.testImplementationDetails");
141	+
142	+	/**
143	+	* If true, report on stdout all "slow" tests, that is, ones that
144	+	* take more than profileThreshold milliseconds to execute.
145	+	*/
146	+	private static final boolean profileTests =
147	+	Boolean.getBoolean("jsr166.profileTests");
148	+
149	+	/**
150	+	* The number of milliseconds that tests are permitted for
151	+	* execution without being reported, when profileTests is set.
152	+	*/
153	+	private static final long profileThreshold =
154	+	Long.getLong("jsr166.profileThreshold", 100);
155	+
156	+	/**
157	+	* The number of repetitions per test (for tickling rare bugs).
158	+	*/
159	+	private static final int runsPerTest =
160	+	Integer.getInteger("jsr166.runsPerTest", 1);
161	+
162	+	/**
163	+	* A filter for tests to run, matching strings of the form
164	+	* methodName(className), e.g. "testInvokeAll5(ForkJoinPoolTest)"
165	+	* Usefully combined with jsr166.runsPerTest.
166	+	*/
167	+	private static final Pattern methodFilter = methodFilter();
168	+
169	+	private static Pattern methodFilter() {
170	+	String regex = System.getProperty("jsr166.methodFilter");
171	+	return (regex == null) ? null : Pattern.compile(regex);
172	+	}
173	+
174	+	protected void runTest() throws Throwable {
175	+	if (methodFilter == null
176	+	|| methodFilter.matcher(toString()).find()) {
177	+	for (int i = 0; i < runsPerTest; i++) {
178	+	if (profileTests)
179	+	runTestProfiled();
180	+	else
181	+	super.runTest();
182	+	}
183	+	}
184	+	}
185	+
186	+	protected void runTestProfiled() throws Throwable {
187	+	// Warmup run, notably to trigger all needed classloading.
188	+	super.runTest();
189	+	long t0 = System.nanoTime();
190	+	try {
191	+	super.runTest();
192	+	} finally {
193	+	long elapsedMillis = millisElapsedSince(t0);
194	+	if (elapsedMillis >= profileThreshold)
195	+	System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
196	+	}
197	+	}
198	+
199		/**
200	<	* Runs all JSR166 unit tests using junit.textui.TestRunner
200	>	* Runs all JSR166 unit tests using junit.textui.TestRunner.
201	>	* Optional command line arg provides the number of iterations to
202	>	* repeat running the tests.
203		*/
204	<	public static void main (String[] args) {
205	<	int iters = 1;
206	<	if (args.length > 0)
207	<	iters = Integer.parseInt(args[0]);
204	>	public static void main(String[] args) {
205	>	if (useSecurityManager) {
206	>	System.err.println("Setting a permissive security manager");
207	>	Policy.setPolicy(permissivePolicy());
208	>	System.setSecurityManager(new SecurityManager());
209	>	}
210	>	int iters = (args.length == 0) ? 1 : Integer.parseInt(args[0]);
211	>
212		Test s = suite();
213		for (int i = 0; i < iters; ++i) {
214	<	junit.textui.TestRunner.run (s);
214	>	junit.textui.TestRunner.run(s);
215		System.gc();
216		System.runFinalization();
217		}
218		System.exit(0);
219		}
220
221	<	/**
222	<	* Collects all JSR166 unit tests as one suite
223	<	*/
224	<	public static Test suite ( ) {
225	<	TestSuite suite = new TestSuite("JSR166 Unit Tests");
221	>	public static TestSuite newTestSuite(Object... suiteOrClasses) {
222	>	TestSuite suite = new TestSuite();
223	>	for (Object suiteOrClass : suiteOrClasses) {
224	>	if (suiteOrClass instanceof TestSuite)
225	>	suite.addTest((TestSuite) suiteOrClass);
226	>	else if (suiteOrClass instanceof Class)
227	>	suite.addTest(new TestSuite((Class<?>) suiteOrClass));
228	>	else
229	>	throw new ClassCastException("not a test suite or class");
230	>	}
231	>	return suite;
232	>	}
233	>
234	>	public static void addNamedTestClasses(TestSuite suite,
235	>	String... testClassNames) {
236	>	for (String testClassName : testClassNames) {
237	>	try {
238	>	Class<?> testClass = Class.forName(testClassName);
239	>	Method m = testClass.getDeclaredMethod("suite",
240	>	new Class<?>[0]);
241	>	suite.addTest(newTestSuite((Test)m.invoke(null)));
242	>	} catch (Exception e) {
243	>	throw new Error("Missing test class", e);
244	>	}
245	>	}
246	>	}
247
248	<	suite.addTest(new TestSuite(ForkJoinPoolTest.class));
249	<	suite.addTest(new TestSuite(ForkJoinTaskTest.class));
250	<	suite.addTest(new TestSuite(RecursiveActionTest.class));
251	<	suite.addTest(new TestSuite(RecursiveTaskTest.class));
252	<	suite.addTest(new TestSuite(LinkedTransferQueueTest.class));
253	<	suite.addTest(new TestSuite(PhaserTest.class));
254	<	suite.addTest(new TestSuite(ThreadLocalRandomTest.class));
255	<	suite.addTest(new TestSuite(AbstractExecutorServiceTest.class));
256	<	suite.addTest(new TestSuite(AbstractQueueTest.class));
257	<	suite.addTest(new TestSuite(AbstractQueuedSynchronizerTest.class));
258	<	suite.addTest(new TestSuite(AbstractQueuedLongSynchronizerTest.class));
259	<	suite.addTest(new TestSuite(ArrayBlockingQueueTest.class));
260	<	suite.addTest(new TestSuite(ArrayDequeTest.class));
261	<	suite.addTest(new TestSuite(AtomicBooleanTest.class));
262	<	suite.addTest(new TestSuite(AtomicIntegerArrayTest.class));
263	<	suite.addTest(new TestSuite(AtomicIntegerFieldUpdaterTest.class));
264	<	suite.addTest(new TestSuite(AtomicIntegerTest.class));
265	<	suite.addTest(new TestSuite(AtomicLongArrayTest.class));
266	<	suite.addTest(new TestSuite(AtomicLongFieldUpdaterTest.class));
267	<	suite.addTest(new TestSuite(AtomicLongTest.class));
268	<	suite.addTest(new TestSuite(AtomicMarkableReferenceTest.class));
269	<	suite.addTest(new TestSuite(AtomicReferenceArrayTest.class));
270	<	suite.addTest(new TestSuite(AtomicReferenceFieldUpdaterTest.class));
271	<	suite.addTest(new TestSuite(AtomicReferenceTest.class));
272	<	suite.addTest(new TestSuite(AtomicStampedReferenceTest.class));
273	<	suite.addTest(new TestSuite(ConcurrentHashMapTest.class));
274	<	suite.addTest(new TestSuite(ConcurrentLinkedQueueTest.class));
275	<	suite.addTest(new TestSuite(ConcurrentSkipListMapTest.class));
276	<	suite.addTest(new TestSuite(ConcurrentSkipListSubMapTest.class));
277	<	suite.addTest(new TestSuite(ConcurrentSkipListSetTest.class));
278	<	suite.addTest(new TestSuite(ConcurrentSkipListSubSetTest.class));
279	<	suite.addTest(new TestSuite(CopyOnWriteArrayListTest.class));
280	<	suite.addTest(new TestSuite(CopyOnWriteArraySetTest.class));
281	<	suite.addTest(new TestSuite(CountDownLatchTest.class));
282	<	suite.addTest(new TestSuite(CyclicBarrierTest.class));
283	<	suite.addTest(new TestSuite(DelayQueueTest.class));
284	<	suite.addTest(new TestSuite(EntryTest.class));
285	<	suite.addTest(new TestSuite(ExchangerTest.class));
286	<	suite.addTest(new TestSuite(ExecutorsTest.class));
287	<	suite.addTest(new TestSuite(ExecutorCompletionServiceTest.class));
288	<	suite.addTest(new TestSuite(FutureTaskTest.class));
289	<	suite.addTest(new TestSuite(LinkedBlockingDequeTest.class));
290	<	suite.addTest(new TestSuite(LinkedBlockingQueueTest.class));
291	<	suite.addTest(new TestSuite(LinkedListTest.class));
292	<	suite.addTest(new TestSuite(LockSupportTest.class));
293	<	suite.addTest(new TestSuite(PriorityBlockingQueueTest.class));
294	<	suite.addTest(new TestSuite(PriorityQueueTest.class));
295	<	suite.addTest(new TestSuite(ReentrantLockTest.class));
296	<	suite.addTest(new TestSuite(ReentrantReadWriteLockTest.class));
297	<	suite.addTest(new TestSuite(ScheduledExecutorTest.class));
298	<	suite.addTest(new TestSuite(ScheduledExecutorSubclassTest.class));
299	<	suite.addTest(new TestSuite(SemaphoreTest.class));
300	<	suite.addTest(new TestSuite(SynchronousQueueTest.class));
301	<	suite.addTest(new TestSuite(SystemTest.class));
302	<	suite.addTest(new TestSuite(ThreadLocalTest.class));
303	<	suite.addTest(new TestSuite(ThreadPoolExecutorTest.class));
304	<	suite.addTest(new TestSuite(ThreadPoolExecutorSubclassTest.class));
305	<	suite.addTest(new TestSuite(ThreadTest.class));
306	<	suite.addTest(new TestSuite(TimeUnitTest.class));
307	<	suite.addTest(new TestSuite(TreeMapTest.class));
308	<	suite.addTest(new TestSuite(TreeSetTest.class));
309	<	suite.addTest(new TestSuite(TreeSubMapTest.class));
310	<	suite.addTest(new TestSuite(TreeSubSetTest.class));
248	>	public static final double JAVA_CLASS_VERSION;
249	>	public static final String JAVA_SPECIFICATION_VERSION;
250	>	static {
251	>	try {
252	>	JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
253	>	new java.security.PrivilegedAction<Double>() {
254	>	public Double run() {
255	>	return Double.valueOf(System.getProperty("java.class.version"));}});
256	>	JAVA_SPECIFICATION_VERSION = java.security.AccessController.doPrivileged(
257	>	new java.security.PrivilegedAction<String>() {
258	>	public String run() {
259	>	return System.getProperty("java.specification.version");}});
260	>	} catch (Throwable t) {
261	>	throw new Error(t);
262	>	}
263	>	}
264	>
265	>	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
266	>	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
267	>	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
268	>	public static boolean atLeastJava9() {
269	>	// As of 2014-05, java9 still uses 52.0 class file version
270	>	return JAVA_SPECIFICATION_VERSION.startsWith("1.9");
271	>	}
272	>
273	>	/**
274	>	* Collects all JSR166 unit tests as one suite.
275	>	*/
276	>	public static Test suite() {
277	>	// Java7+ test classes
278	>	TestSuite suite = newTestSuite(
279	>	ForkJoinPoolTest.suite(),
280	>	ForkJoinTaskTest.suite(),
281	>	RecursiveActionTest.suite(),
282	>	RecursiveTaskTest.suite(),
283	>	LinkedTransferQueueTest.suite(),
284	>	PhaserTest.suite(),
285	>	ThreadLocalRandomTest.suite(),
286	>	AbstractExecutorServiceTest.suite(),
287	>	AbstractQueueTest.suite(),
288	>	AbstractQueuedSynchronizerTest.suite(),
289	>	AbstractQueuedLongSynchronizerTest.suite(),
290	>	ArrayBlockingQueueTest.suite(),
291	>	ArrayDequeTest.suite(),
292	>	AtomicBooleanTest.suite(),
293	>	AtomicIntegerArrayTest.suite(),
294	>	AtomicIntegerFieldUpdaterTest.suite(),
295	>	AtomicIntegerTest.suite(),
296	>	AtomicLongArrayTest.suite(),
297	>	AtomicLongFieldUpdaterTest.suite(),
298	>	AtomicLongTest.suite(),
299	>	AtomicMarkableReferenceTest.suite(),
300	>	AtomicReferenceArrayTest.suite(),
301	>	AtomicReferenceFieldUpdaterTest.suite(),
302	>	AtomicReferenceTest.suite(),
303	>	AtomicStampedReferenceTest.suite(),
304	>	ConcurrentHashMapTest.suite(),
305	>	ConcurrentLinkedDequeTest.suite(),
306	>	ConcurrentLinkedQueueTest.suite(),
307	>	ConcurrentSkipListMapTest.suite(),
308	>	ConcurrentSkipListSubMapTest.suite(),
309	>	ConcurrentSkipListSetTest.suite(),
310	>	ConcurrentSkipListSubSetTest.suite(),
311	>	CopyOnWriteArrayListTest.suite(),
312	>	CopyOnWriteArraySetTest.suite(),
313	>	CountDownLatchTest.suite(),
314	>	CyclicBarrierTest.suite(),
315	>	DelayQueueTest.suite(),
316	>	EntryTest.suite(),
317	>	ExchangerTest.suite(),
318	>	ExecutorsTest.suite(),
319	>	ExecutorCompletionServiceTest.suite(),
320	>	FutureTaskTest.suite(),
321	>	LinkedBlockingDequeTest.suite(),
322	>	LinkedBlockingQueueTest.suite(),
323	>	LinkedListTest.suite(),
324	>	LockSupportTest.suite(),
325	>	PriorityBlockingQueueTest.suite(),
326	>	PriorityQueueTest.suite(),
327	>	ReentrantLockTest.suite(),
328	>	ReentrantReadWriteLockTest.suite(),
329	>	ScheduledExecutorTest.suite(),
330	>	ScheduledExecutorSubclassTest.suite(),
331	>	SemaphoreTest.suite(),
332	>	SynchronousQueueTest.suite(),
333	>	SystemTest.suite(),
334	>	ThreadLocalTest.suite(),
335	>	ThreadPoolExecutorTest.suite(),
336	>	ThreadPoolExecutorSubclassTest.suite(),
337	>	ThreadTest.suite(),
338	>	TimeUnitTest.suite(),
339	>	TreeMapTest.suite(),
340	>	TreeSetTest.suite(),
341	>	TreeSubMapTest.suite(),
342	>	TreeSubSetTest.suite());
343	>
344	>	// Java8+ test classes
345	>	if (atLeastJava8()) {
346	>	String[] java8TestClassNames = {
347	>	"Atomic8Test",
348	>	"CompletableFutureTest",
349	>	"ConcurrentHashMap8Test",
350	>	"CountedCompleterTest",
351	>	"DoubleAccumulatorTest",
352	>	"DoubleAdderTest",
353	>	"ForkJoinPool8Test",
354	>	"ForkJoinTask8Test",
355	>	"LongAccumulatorTest",
356	>	"LongAdderTest",
357	>	"SplittableRandomTest",
358	>	"StampedLockTest",
359	>	"ThreadLocalRandom8Test",
360	>	};
361	>	addNamedTestClasses(suite, java8TestClassNames);
362	>	}
363	>
364	>	// Java9+ test classes
365	>	if (atLeastJava9()) {
366	>	String[] java9TestClassNames = {
367	>	"ThreadPoolExecutor9Test",
368	>	};
369	>	addNamedTestClasses(suite, java9TestClassNames);
370	>	}
371
372		return suite;
373		}
374
375	+	// Delays for timing-dependent tests, in milliseconds.
376
377		public static long SHORT_DELAY_MS;
378		public static long SMALL_DELAY_MS;
379		public static long MEDIUM_DELAY_MS;
380		public static long LONG_DELAY_MS;
381
184	–
382		/**
383		* Returns the shortest timed delay. This could
384		* be reimplemented to use for example a Property.
#	Line 190 | Line 387 | public class JSR166TestCase extends Test
387		return 50;
388		}
389
193	–
390		/**
391		* Sets delays as multiples of SHORT_DELAY.
392		*/
393	<	protected  void setDelays() {
393	>	protected void setDelays() {
394		SHORT_DELAY_MS = getShortDelay();
395	<	SMALL_DELAY_MS = SHORT_DELAY_MS * 5;
395	>	SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
396		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
397	<	LONG_DELAY_MS = SHORT_DELAY_MS * 50;
397	>	LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
398	>	}
399	>
400	>	/**
401	>	* Returns a timeout in milliseconds to be used in tests that
402	>	* verify that operations block or time out.
403	>	*/
404	>	long timeoutMillis() {
405	>	return SHORT_DELAY_MS / 4;
406	>	}
407	>
408	>	/**
409	>	* Returns a new Date instance representing a time delayMillis
410	>	* milliseconds in the future.
411	>	*/
412	>	Date delayedDate(long delayMillis) {
413	>	return new Date(System.currentTimeMillis() + delayMillis);
414		}
415
416		/**
417	<	* Flag set true if any threadAssert methods fail
417	>	* The first exception encountered if any threadAssertXXX method fails.
418		*/
419	<	volatile boolean threadFailed;
419	>	private final AtomicReference<Throwable> threadFailure
420	>	= new AtomicReference<Throwable>(null);
421
422		/**
423	<	* Initializes test to indicate that no thread assertions have failed
423	>	* Records an exception so that it can be rethrown later in the test
424	>	* harness thread, triggering a test case failure.  Only the first
425	>	* failure is recorded; subsequent calls to this method from within
426	>	* the same test have no effect.
427		*/
428	+	public void threadRecordFailure(Throwable t) {
429	+	threadFailure.compareAndSet(null, t);
430	+	}
431	+
432		public void setUp() {
433		setDelays();
214	–	threadFailed = false;
434		}
435
436		/**
437	<	* Triggers test case failure if any thread assertions have failed
438	<	*/
439	<	public void tearDown() {
440	<	assertFalse(threadFailed);
437	>	* Extra checks that get done for all test cases.
438	>	*
439	>	* Triggers test case failure if any thread assertions have failed,
440	>	* by rethrowing, in the test harness thread, any exception recorded
441	>	* earlier by threadRecordFailure.
442	>	*
443	>	* Triggers test case failure if interrupt status is set in the main thread.
444	>	*/
445	>	public void tearDown() throws Exception {
446	>	Throwable t = threadFailure.getAndSet(null);
447	>	if (t != null) {
448	>	if (t instanceof Error)
449	>	throw (Error) t;
450	>	else if (t instanceof RuntimeException)
451	>	throw (RuntimeException) t;
452	>	else if (t instanceof Exception)
453	>	throw (Exception) t;
454	>	else {
455	>	AssertionFailedError afe =
456	>	new AssertionFailedError(t.toString());
457	>	afe.initCause(t);
458	>	throw afe;
459	>	}
460	>	}
461	>
462	>	if (Thread.interrupted())
463	>	throw new AssertionFailedError("interrupt status set in main thread");
464	>
465	>	checkForkJoinPoolThreadLeaks();
466	>	}
467	>
468	>	/**
469	>	* Finds missing try { ... } finally { joinPool(e); }
470	>	*/
471	>	void checkForkJoinPoolThreadLeaks() throws InterruptedException {
472	>	Thread[] survivors = new Thread[5];
473	>	int count = Thread.enumerate(survivors);
474	>	for (int i = 0; i < count; i++) {
475	>	Thread thread = survivors[i];
476	>	String name = thread.getName();
477	>	if (name.startsWith("ForkJoinPool-")) {
478	>	// give thread some time to terminate
479	>	thread.join(LONG_DELAY_MS);
480	>	if (!thread.isAlive()) continue;
481	>	thread.stop();
482	>	throw new AssertionFailedError
483	>	(String.format("Found leaked ForkJoinPool thread test=%s thread=%s%n",
484	>	toString(), name));
485	>	}
486	>	}
487		}
488
489		/**
490	<	* Fail, also setting status to indicate current testcase should fail
490	>	* Just like fail(reason), but additionally recording (using
491	>	* threadRecordFailure) any AssertionFailedError thrown, so that
492	>	* the current testcase will fail.
493		*/
494		public void threadFail(String reason) {
495	<	threadFailed = true;
496	<	fail(reason);
495	>	try {
496	>	fail(reason);
497	>	} catch (AssertionFailedError t) {
498	>	threadRecordFailure(t);
499	>	fail(reason);
500	>	}
501		}
502
503		/**
504	<	* If expression not true, set status to indicate current testcase
505	<	* should fail
504	>	* Just like assertTrue(b), but additionally recording (using
505	>	* threadRecordFailure) any AssertionFailedError thrown, so that
506	>	* the current testcase will fail.
507		*/
508		public void threadAssertTrue(boolean b) {
509	<	if (!b) {
238	<	threadFailed = true;
509	>	try {
510		assertTrue(b);
511	+	} catch (AssertionFailedError t) {
512	+	threadRecordFailure(t);
513	+	throw t;
514		}
515		}
516
517		/**
518	<	* If expression not false, set status to indicate current testcase
519	<	* should fail
518	>	* Just like assertFalse(b), but additionally recording (using
519	>	* threadRecordFailure) any AssertionFailedError thrown, so that
520	>	* the current testcase will fail.
521		*/
522		public void threadAssertFalse(boolean b) {
523	<	if (b) {
249	<	threadFailed = true;
523	>	try {
524		assertFalse(b);
525	+	} catch (AssertionFailedError t) {
526	+	threadRecordFailure(t);
527	+	throw t;
528		}
529		}
530
531		/**
532	<	* If argument not null, set status to indicate current testcase
533	<	* should fail
532	>	* Just like assertNull(x), but additionally recording (using
533	>	* threadRecordFailure) any AssertionFailedError thrown, so that
534	>	* the current testcase will fail.
535		*/
536		public void threadAssertNull(Object x) {
537	<	if (x != null) {
260	<	threadFailed = true;
537	>	try {
538		assertNull(x);
539	+	} catch (AssertionFailedError t) {
540	+	threadRecordFailure(t);
541	+	throw t;
542		}
543		}
544
545		/**
546	<	* If arguments not equal, set status to indicate current testcase
547	<	* should fail
546	>	* Just like assertEquals(x, y), but additionally recording (using
547	>	* threadRecordFailure) any AssertionFailedError thrown, so that
548	>	* the current testcase will fail.
549		*/
550		public void threadAssertEquals(long x, long y) {
551	<	if (x != y) {
271	<	threadFailed = true;
551	>	try {
552		assertEquals(x, y);
553	+	} catch (AssertionFailedError t) {
554	+	threadRecordFailure(t);
555	+	throw t;
556		}
557		}
558
559		/**
560	<	* If arguments not equal, set status to indicate current testcase
561	<	* should fail
560	>	* Just like assertEquals(x, y), but additionally recording (using
561	>	* threadRecordFailure) any AssertionFailedError thrown, so that
562	>	* the current testcase will fail.
563		*/
564		public void threadAssertEquals(Object x, Object y) {
565	<	if (x != y && (x == null || !x.equals(y))) {
282	<	threadFailed = true;
565	>	try {
566		assertEquals(x, y);
567	+	} catch (AssertionFailedError t) {
568	+	threadRecordFailure(t);
569	+	throw t;
570	+	} catch (Throwable t) {
571	+	threadUnexpectedException(t);
572		}
573		}
574
575		/**
576	<	* threadFail with message "should throw exception"
577	<	*/
576	>	* Just like assertSame(x, y), but additionally recording (using
577	>	* threadRecordFailure) any AssertionFailedError thrown, so that
578	>	* the current testcase will fail.
579	>	*/
580	>	public void threadAssertSame(Object x, Object y) {
581	>	try {
582	>	assertSame(x, y);
583	>	} catch (AssertionFailedError t) {
584	>	threadRecordFailure(t);
585	>	throw t;
586	>	}
587	>	}
588	>
589	>	/**
590	>	* Calls threadFail with message "should throw exception".
591	>	*/
592		public void threadShouldThrow() {
593	<	try {
292	<	threadFailed = true;
293	<	fail("should throw exception");
294	<	} catch (AssertionFailedError e) {
295	<	e.printStackTrace();
296	<	throw e;
297	<	}
593	>	threadFail("should throw exception");
594		}
595
596		/**
597	<	* threadFail with message "Unexpected exception"
597	>	* Calls threadFail with message "should throw" + exceptionName.
598		*/
599	<	public void threadUnexpectedException() {
600	<	threadFailed = true;
305	<	fail("Unexpected exception");
599	>	public void threadShouldThrow(String exceptionName) {
600	>	threadFail("should throw " + exceptionName);
601		}
602
603		/**
604	<	* threadFail with message "Unexpected exception", with argument
604	>	* Records the given exception using {@link #threadRecordFailure},
605	>	* then rethrows the exception, wrapping it in an
606	>	* AssertionFailedError if necessary.
607		*/
608	<	public void threadUnexpectedException(Throwable ex) {
609	<	threadFailed = true;
610	<	ex.printStackTrace();
611	<	fail("Unexpected exception: " + ex);
608	>	public void threadUnexpectedException(Throwable t) {
609	>	threadRecordFailure(t);
610	>	t.printStackTrace();
611	>	if (t instanceof RuntimeException)
612	>	throw (RuntimeException) t;
613	>	else if (t instanceof Error)
614	>	throw (Error) t;
615	>	else {
616	>	AssertionFailedError afe =
617	>	new AssertionFailedError("unexpected exception: " + t);
618	>	afe.initCause(t);
619	>	throw afe;
620	>	}
621		}
622
623		/**
624	<	* Wait out termination of a thread pool or fail doing so
624	>	* Delays, via Thread.sleep, for the given millisecond delay, but
625	>	* if the sleep is shorter than specified, may re-sleep or yield
626	>	* until time elapses.
627		*/
628	<	public void joinPool(ExecutorService exec) {
628	>	static void delay(long millis) throws InterruptedException {
629	>	long startTime = System.nanoTime();
630	>	long ns = millis * 1000 * 1000;
631	>	for (;;) {
632	>	if (millis > 0L)
633	>	Thread.sleep(millis);
634	>	else // too short to sleep
635	>	Thread.yield();
636	>	long d = ns - (System.nanoTime() - startTime);
637	>	if (d > 0L)
638	>	millis = d / (1000 * 1000);
639	>	else
640	>	break;
641	>	}
642	>	}
643	>
644	>	/**
645	>	* Waits out termination of a thread pool or fails doing so.
646	>	*/
647	>	void joinPool(ExecutorService exec) {
648		try {
649		exec.shutdown();
650	<	assertTrue(exec.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
651	<	} catch(SecurityException ok) {
650	>	if (!exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS))
651	>	fail("ExecutorService " + exec +
652	>	" did not terminate in a timely manner");
653	>	} catch (SecurityException ok) {
654		// Allowed in case test doesn't have privs
655	<	} catch(InterruptedException ie) {
656	<	fail("Unexpected exception");
655	>	} catch (InterruptedException ie) {
656	>	fail("Unexpected InterruptedException");
657	>	}
658	>	}
659	>
660	>	/**
661	>	* A debugging tool to print all stack traces, as jstack does.
662	>	*/
663	>	static void printAllStackTraces() {
664	>	for (ThreadInfo info :
665	>	ManagementFactory.getThreadMXBean()
666	>	.dumpAllThreads(true, true))
667	>	System.err.print(info);
668	>	}
669	>
670	>	/**
671	>	* Checks that thread does not terminate within the default
672	>	* millisecond delay of {@code timeoutMillis()}.
673	>	*/
674	>	void assertThreadStaysAlive(Thread thread) {
675	>	assertThreadStaysAlive(thread, timeoutMillis());
676	>	}
677	>
678	>	/**
679	>	* Checks that thread does not terminate within the given millisecond delay.
680	>	*/
681	>	void assertThreadStaysAlive(Thread thread, long millis) {
682	>	try {
683	>	// No need to optimize the failing case via Thread.join.
684	>	delay(millis);
685	>	assertTrue(thread.isAlive());
686	>	} catch (InterruptedException ie) {
687	>	fail("Unexpected InterruptedException");
688	>	}
689	>	}
690	>
691	>	/**
692	>	* Checks that the threads do not terminate within the default
693	>	* millisecond delay of {@code timeoutMillis()}.
694	>	*/
695	>	void assertThreadsStayAlive(Thread... threads) {
696	>	assertThreadsStayAlive(timeoutMillis(), threads);
697	>	}
698	>
699	>	/**
700	>	* Checks that the threads do not terminate within the given millisecond delay.
701	>	*/
702	>	void assertThreadsStayAlive(long millis, Thread... threads) {
703	>	try {
704	>	// No need to optimize the failing case via Thread.join.
705	>	delay(millis);
706	>	for (Thread thread : threads)
707	>	assertTrue(thread.isAlive());
708	>	} catch (InterruptedException ie) {
709	>	fail("Unexpected InterruptedException");
710		}
711		}
712
713	+	/**
714	+	* Checks that future.get times out, with the default timeout of
715	+	* {@code timeoutMillis()}.
716	+	*/
717	+	void assertFutureTimesOut(Future future) {
718	+	assertFutureTimesOut(future, timeoutMillis());
719	+	}
720	+
721	+	/**
722	+	* Checks that future.get times out, with the given millisecond timeout.
723	+	*/
724	+	void assertFutureTimesOut(Future future, long timeoutMillis) {
725	+	long startTime = System.nanoTime();
726	+	try {
727	+	future.get(timeoutMillis, MILLISECONDS);
728	+	shouldThrow();
729	+	} catch (TimeoutException success) {
730	+	} catch (Exception e) {
731	+	threadUnexpectedException(e);
732	+	} finally { future.cancel(true); }
733	+	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
734	+	}
735
736		/**
737	<	* fail with message "should throw exception"
737	>	* Fails with message "should throw exception".
738		*/
739		public void shouldThrow() {
740		fail("Should throw exception");
741		}
742
743		/**
744	<	* fail with message "Unexpected exception"
744	>	* Fails with message "should throw " + exceptionName.
745		*/
746	<	public void unexpectedException() {
747	<	fail("Unexpected exception");
746	>	public void shouldThrow(String exceptionName) {
747	>	fail("Should throw " + exceptionName);
748		}
749
346	–
750		/**
751		* The number of elements to place in collections, arrays, etc.
752		*/
753	<	static final int SIZE = 20;
753	>	public static final int SIZE = 20;
754
755		// Some convenient Integer constants
756
757	<	static final Integer zero = new Integer(0);
758	<	static final Integer one = new Integer(1);
759	<	static final Integer two = new Integer(2);
760	<	static final Integer three  = new Integer(3);
761	<	static final Integer four  = new Integer(4);
762	<	static final Integer five  = new Integer(5);
763	<	static final Integer six = new Integer(6);
764	<	static final Integer seven = new Integer(7);
765	<	static final Integer eight = new Integer(8);
766	<	static final Integer nine = new Integer(9);
767	<	static final Integer m1  = new Integer(-1);
768	<	static final Integer m2  = new Integer(-2);
769	<	static final Integer m3  = new Integer(-3);
770	<	static final Integer m4 = new Integer(-4);
771	<	static final Integer m5 = new Integer(-5);
772	<	static final Integer m6 = new Integer(-6);
773	<	static final Integer m10 = new Integer(-10);
757	>	public static final Integer zero  = new Integer(0);
758	>	public static final Integer one   = new Integer(1);
759	>	public static final Integer two   = new Integer(2);
760	>	public static final Integer three = new Integer(3);
761	>	public static final Integer four  = new Integer(4);
762	>	public static final Integer five  = new Integer(5);
763	>	public static final Integer six   = new Integer(6);
764	>	public static final Integer seven = new Integer(7);
765	>	public static final Integer eight = new Integer(8);
766	>	public static final Integer nine  = new Integer(9);
767	>	public static final Integer m1  = new Integer(-1);
768	>	public static final Integer m2  = new Integer(-2);
769	>	public static final Integer m3  = new Integer(-3);
770	>	public static final Integer m4  = new Integer(-4);
771	>	public static final Integer m5  = new Integer(-5);
772	>	public static final Integer m6  = new Integer(-6);
773	>	public static final Integer m10 = new Integer(-10);
774	>
775	>	/**
776	>	* Runs Runnable r with a security policy that permits precisely
777	>	* the specified permissions.  If there is no current security
778	>	* manager, the runnable is run twice, both with and without a
779	>	* security manager.  We require that any security manager permit
780	>	* getPolicy/setPolicy.
781	>	*/
782	>	public void runWithPermissions(Runnable r, Permission... permissions) {
783	>	SecurityManager sm = System.getSecurityManager();
784	>	if (sm == null) {
785	>	r.run();
786	>	}
787	>	runWithSecurityManagerWithPermissions(r, permissions);
788	>	}
789
790	+	/**
791	+	* Runs Runnable r with a security policy that permits precisely
792	+	* the specified permissions.  If there is no current security
793	+	* manager, a temporary one is set for the duration of the
794	+	* Runnable.  We require that any security manager permit
795	+	* getPolicy/setPolicy.
796	+	*/
797	+	public void runWithSecurityManagerWithPermissions(Runnable r,
798	+	Permission... permissions) {
799	+	SecurityManager sm = System.getSecurityManager();
800	+	if (sm == null) {
801	+	Policy savedPolicy = Policy.getPolicy();
802	+	try {
803	+	Policy.setPolicy(permissivePolicy());
804	+	System.setSecurityManager(new SecurityManager());
805	+	runWithSecurityManagerWithPermissions(r, permissions);
806	+	} finally {
807	+	System.setSecurityManager(null);
808	+	Policy.setPolicy(savedPolicy);
809	+	}
810	+	} else {
811	+	Policy savedPolicy = Policy.getPolicy();
812	+	AdjustablePolicy policy = new AdjustablePolicy(permissions);
813	+	Policy.setPolicy(policy);
814	+
815	+	try {
816	+	r.run();
817	+	} finally {
818	+	policy.addPermission(new SecurityPermission("setPolicy"));
819	+	Policy.setPolicy(savedPolicy);
820	+	}
821	+	}
822	+	}
823	+
824	+	/**
825	+	* Runs a runnable without any permissions.
826	+	*/
827	+	public void runWithoutPermissions(Runnable r) {
828	+	runWithPermissions(r);
829	+	}
830
831		/**
832		* A security policy where new permissions can be dynamically added
833		* or all cleared.
834		*/
835	<	static class AdjustablePolicy extends java.security.Policy {
835	>	public static class AdjustablePolicy extends java.security.Policy {
836		Permissions perms = new Permissions();
837	<	AdjustablePolicy() { }
837	>	AdjustablePolicy(Permission... permissions) {
838	>	for (Permission permission : permissions)
839	>	perms.add(permission);
840	>	}
841		void addPermission(Permission perm) { perms.add(perm); }
842		void clearPermissions() { perms = new Permissions(); }
843	<	public PermissionCollection getPermissions(CodeSource cs) {
844	<	return perms;
845	<	}
846	<	public PermissionCollection getPermissions(ProtectionDomain pd) {
847	<	return perms;
848	<	}
849	<	public boolean implies(ProtectionDomain pd, Permission p) {
850	<	return perms.implies(p);
851	<	}
852	<	public void refresh() {}
843	>	public PermissionCollection getPermissions(CodeSource cs) {
844	>	return perms;
845	>	}
846	>	public PermissionCollection getPermissions(ProtectionDomain pd) {
847	>	return perms;
848	>	}
849	>	public boolean implies(ProtectionDomain pd, Permission p) {
850	>	return perms.implies(p);
851	>	}
852	>	public void refresh() {}
853	>	public String toString() {
854	>	List<Permission> ps = new ArrayList<Permission>();
855	>	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
856	>	ps.add(e.nextElement());
857	>	return "AdjustablePolicy with permissions " + ps;
858	>	}
859		}
860
861	+	/**
862	+	* Returns a policy containing all the permissions we ever need.
863	+	*/
864	+	public static Policy permissivePolicy() {
865	+	return new AdjustablePolicy
866	+	// Permissions j.u.c. needs directly
867	+	(new RuntimePermission("modifyThread"),
868	+	new RuntimePermission("getClassLoader"),
869	+	new RuntimePermission("setContextClassLoader"),
870	+	// Permissions needed to change permissions!
871	+	new SecurityPermission("getPolicy"),
872	+	new SecurityPermission("setPolicy"),
873	+	new RuntimePermission("setSecurityManager"),
874	+	// Permissions needed by the junit test harness
875	+	new RuntimePermission("accessDeclaredMembers"),
876	+	new PropertyPermission("*", "read"),
877	+	new java.io.FilePermission("<<ALL FILES>>", "read"));
878	+	}
879
880	<	// Some convenient Runnable classes
880	>	/**
881	>	* Sleeps until the given time has elapsed.
882	>	* Throws AssertionFailedError if interrupted.
883	>	*/
884	>	void sleep(long millis) {
885	>	try {
886	>	delay(millis);
887	>	} catch (InterruptedException ie) {
888	>	AssertionFailedError afe =
889	>	new AssertionFailedError("Unexpected InterruptedException");
890	>	afe.initCause(ie);
891	>	throw afe;
892	>	}
893	>	}
894
895	<	static class NoOpRunnable implements Runnable {
896	<	public void run() {}
895	>	/**
896	>	* Spin-waits up to the specified number of milliseconds for the given
897	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
898	>	*/
899	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
900	>	long startTime = System.nanoTime();
901	>	for (;;) {
902	>	Thread.State s = thread.getState();
903	>	if (s == Thread.State.BLOCKED ||
904	>	s == Thread.State.WAITING ||
905	>	s == Thread.State.TIMED_WAITING)
906	>	return;
907	>	else if (s == Thread.State.TERMINATED)
908	>	fail("Unexpected thread termination");
909	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
910	>	threadAssertTrue(thread.isAlive());
911	>	return;
912	>	}
913	>	Thread.yield();
914	>	}
915		}
916
917	<	static class NoOpCallable implements Callable {
918	<	public Object call() { return Boolean.TRUE; }
917	>	/**
918	>	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
919	>	* state: BLOCKED, WAITING, or TIMED_WAITING.
920	>	*/
921	>	void waitForThreadToEnterWaitState(Thread thread) {
922	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
923		}
924
925	<	static final String TEST_STRING = "a test string";
925	>	/**
926	>	* Returns the number of milliseconds since time given by
927	>	* startNanoTime, which must have been previously returned from a
928	>	* call to {@link System#nanoTime()}.
929	>	*/
930	>	static long millisElapsedSince(long startNanoTime) {
931	>	return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
932	>	}
933
934	<	static class StringTask implements Callable<String> {
935	<	public String call() { return TEST_STRING; }
934	>	//     void assertTerminatesPromptly(long timeoutMillis, Runnable r) {
935	>	//         long startTime = System.nanoTime();
936	>	//         try {
937	>	//             r.run();
938	>	//         } catch (Throwable fail) { threadUnexpectedException(fail); }
939	>	//         if (millisElapsedSince(startTime) > timeoutMillis/2)
940	>	//             throw new AssertionFailedError("did not return promptly");
941	>	//     }
942	>
943	>	//     void assertTerminatesPromptly(Runnable r) {
944	>	//         assertTerminatesPromptly(LONG_DELAY_MS/2, r);
945	>	//     }
946	>
947	>	/**
948	>	* Checks that timed f.get() returns the expected value, and does not
949	>	* wait for the timeout to elapse before returning.
950	>	*/
951	>	<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
952	>	long startTime = System.nanoTime();
953	>	try {
954	>	assertEquals(expectedValue, f.get(timeoutMillis, MILLISECONDS));
955	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
956	>	if (millisElapsedSince(startTime) > timeoutMillis/2)
957	>	throw new AssertionFailedError("timed get did not return promptly");
958		}
959
960	<	static class NPETask implements Callable<String> {
961	<	public String call() { throw new NullPointerException(); }
960	>	<T> void checkTimedGet(Future<T> f, T expectedValue) {
961	>	checkTimedGet(f, expectedValue, LONG_DELAY_MS);
962		}
963
964	<	static class CallableOne implements Callable<Integer> {
965	<	public Integer call() { return one; }
964	>	/**
965	>	* Returns a new started daemon Thread running the given runnable.
966	>	*/
967	>	Thread newStartedThread(Runnable runnable) {
968	>	Thread t = new Thread(runnable);
969	>	t.setDaemon(true);
970	>	t.start();
971	>	return t;
972		}
973
974	<	class ShortRunnable implements Runnable {
975	<	public void run() {
976	<	try {
977	<	Thread.sleep(SHORT_DELAY_MS);
978	<	}
979	<	catch(Exception e) {
980	<	threadUnexpectedException(e);
974	>	/**
975	>	* Waits for the specified time (in milliseconds) for the thread
976	>	* to terminate (using {@link Thread#join(long)}), else interrupts
977	>	* the thread (in the hope that it may terminate later) and fails.
978	>	*/
979	>	void awaitTermination(Thread t, long timeoutMillis) {
980	>	try {
981	>	t.join(timeoutMillis);
982	>	} catch (InterruptedException ie) {
983	>	threadUnexpectedException(ie);
984	>	} finally {
985	>	if (t.getState() != Thread.State.TERMINATED) {
986	>	t.interrupt();
987	>	fail("Test timed out");
988		}
989		}
990		}
991
992	<	class ShortInterruptedRunnable implements Runnable {
993	<	public void run() {
992	>	/**
993	>	* Waits for LONG_DELAY_MS milliseconds for the thread to
994	>	* terminate (using {@link Thread#join(long)}), else interrupts
995	>	* the thread (in the hope that it may terminate later) and fails.
996	>	*/
997	>	void awaitTermination(Thread t) {
998	>	awaitTermination(t, LONG_DELAY_MS);
999	>	}
1000	>
1001	>	// Some convenient Runnable classes
1002	>
1003	>	public abstract class CheckedRunnable implements Runnable {
1004	>	protected abstract void realRun() throws Throwable;
1005	>
1006	>	public final void run() {
1007		try {
1008	<	Thread.sleep(SHORT_DELAY_MS);
1009	<	threadShouldThrow();
1010	<	}
436	<	catch(InterruptedException success) {
1008	>	realRun();
1009	>	} catch (Throwable t) {
1010	>	threadUnexpectedException(t);
1011		}
1012		}
1013		}
1014
1015	<	class SmallRunnable implements Runnable {
1016	<	public void run() {
1015	>	public abstract class RunnableShouldThrow implements Runnable {
1016	>	protected abstract void realRun() throws Throwable;
1017	>
1018	>	final Class<?> exceptionClass;
1019	>
1020	>	<T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) {
1021	>	this.exceptionClass = exceptionClass;
1022	>	}
1023	>
1024	>	public final void run() {
1025		try {
1026	<	Thread.sleep(SMALL_DELAY_MS);
1027	<	}
1028	<	catch(Exception e) {
1029	<	threadUnexpectedException(e);
1026	>	realRun();
1027	>	threadShouldThrow(exceptionClass.getSimpleName());
1028	>	} catch (Throwable t) {
1029	>	if (! exceptionClass.isInstance(t))
1030	>	threadUnexpectedException(t);
1031		}
1032		}
1033		}
1034
1035	<	class SmallPossiblyInterruptedRunnable implements Runnable {
1036	<	public void run() {
1035	>	public abstract class ThreadShouldThrow extends Thread {
1036	>	protected abstract void realRun() throws Throwable;
1037	>
1038	>	final Class<?> exceptionClass;
1039	>
1040	>	<T extends Throwable> ThreadShouldThrow(Class<T> exceptionClass) {
1041	>	this.exceptionClass = exceptionClass;
1042	>	}
1043	>
1044	>	public final void run() {
1045		try {
1046	<	Thread.sleep(SMALL_DELAY_MS);
1047	<	}
1048	<	catch(Exception e) {
1046	>	realRun();
1047	>	threadShouldThrow(exceptionClass.getSimpleName());
1048	>	} catch (Throwable t) {
1049	>	if (! exceptionClass.isInstance(t))
1050	>	threadUnexpectedException(t);
1051		}
1052		}
1053		}
1054
1055	<	class SmallCallable implements Callable {
1056	<	public Object call() {
1055	>	public abstract class CheckedInterruptedRunnable implements Runnable {
1056	>	protected abstract void realRun() throws Throwable;
1057	>
1058	>	public final void run() {
1059		try {
1060	<	Thread.sleep(SMALL_DELAY_MS);
1060	>	realRun();
1061	>	threadShouldThrow("InterruptedException");
1062	>	} catch (InterruptedException success) {
1063	>	threadAssertFalse(Thread.interrupted());
1064	>	} catch (Throwable t) {
1065	>	threadUnexpectedException(t);
1066		}
467	–	catch(Exception e) {
468	–	threadUnexpectedException(e);
469	–	}
470	–	return Boolean.TRUE;
1067		}
1068		}
1069
1070	<	class SmallInterruptedRunnable implements Runnable {
1071	<	public void run() {
1070	>	public abstract class CheckedCallable<T> implements Callable<T> {
1071	>	protected abstract T realCall() throws Throwable;
1072	>
1073	>	public final T call() {
1074		try {
1075	<	Thread.sleep(SMALL_DELAY_MS);
1076	<	threadShouldThrow();
1077	<	}
1078	<	catch(InterruptedException success) {
1075	>	return realCall();
1076	>	} catch (Throwable t) {
1077	>	threadUnexpectedException(t);
1078	>	return null;
1079		}
1080		}
1081		}
1082
1083	+	public abstract class CheckedInterruptedCallable<T>
1084	+	implements Callable<T> {
1085	+	protected abstract T realCall() throws Throwable;
1086
1087	<	class MediumRunnable implements Runnable {
487	<	public void run() {
1087	>	public final T call() {
1088		try {
1089	<	Thread.sleep(MEDIUM_DELAY_MS);
1090	<	}
1091	<	catch(Exception e) {
1092	<	threadUnexpectedException(e);
1089	>	T result = realCall();
1090	>	threadShouldThrow("InterruptedException");
1091	>	return result;
1092	>	} catch (InterruptedException success) {
1093	>	threadAssertFalse(Thread.interrupted());
1094	>	} catch (Throwable t) {
1095	>	threadUnexpectedException(t);
1096		}
1097	+	return null;
1098		}
1099		}
1100
1101	<	class MediumInterruptedRunnable implements Runnable {
1102	<	public void run() {
1101	>	public static class NoOpRunnable implements Runnable {
1102	>	public void run() {}
1103	>	}
1104	>
1105	>	public static class NoOpCallable implements Callable {
1106	>	public Object call() { return Boolean.TRUE; }
1107	>	}
1108	>
1109	>	public static final String TEST_STRING = "a test string";
1110	>
1111	>	public static class StringTask implements Callable<String> {
1112	>	public String call() { return TEST_STRING; }
1113	>	}
1114	>
1115	>	public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
1116	>	return new CheckedCallable<String>() {
1117	>	protected String realCall() {
1118	>	try {
1119	>	latch.await();
1120	>	} catch (InterruptedException quittingTime) {}
1121	>	return TEST_STRING;
1122	>	}};
1123	>	}
1124	>
1125	>	public Runnable awaiter(final CountDownLatch latch) {
1126	>	return new CheckedRunnable() {
1127	>	public void realRun() throws InterruptedException {
1128	>	await(latch);
1129	>	}};
1130	>	}
1131	>
1132	>	public void await(CountDownLatch latch) {
1133	>	try {
1134	>	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1135	>	} catch (Throwable t) {
1136	>	threadUnexpectedException(t);
1137	>	}
1138	>	}
1139	>
1140	>	public void await(Semaphore semaphore) {
1141	>	try {
1142	>	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1143	>	} catch (Throwable t) {
1144	>	threadUnexpectedException(t);
1145	>	}
1146	>	}
1147	>
1148	>	//     /**
1149	>	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1150	>	//      */
1151	>	//     public void await(AtomicBoolean flag) {
1152	>	//         await(flag, LONG_DELAY_MS);
1153	>	//     }
1154	>
1155	>	//     /**
1156	>	//      * Spin-waits up to the specified timeout until flag becomes true.
1157	>	//      */
1158	>	//     public void await(AtomicBoolean flag, long timeoutMillis) {
1159	>	//         long startTime = System.nanoTime();
1160	>	//         while (!flag.get()) {
1161	>	//             if (millisElapsedSince(startTime) > timeoutMillis)
1162	>	//                 throw new AssertionFailedError("timed out");
1163	>	//             Thread.yield();
1164	>	//         }
1165	>	//     }
1166	>
1167	>	public static class NPETask implements Callable<String> {
1168	>	public String call() { throw new NullPointerException(); }
1169	>	}
1170	>
1171	>	public static class CallableOne implements Callable<Integer> {
1172	>	public Integer call() { return one; }
1173	>	}
1174	>
1175	>	public class ShortRunnable extends CheckedRunnable {
1176	>	protected void realRun() throws Throwable {
1177	>	delay(SHORT_DELAY_MS);
1178	>	}
1179	>	}
1180	>
1181	>	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1182	>	protected void realRun() throws InterruptedException {
1183	>	delay(SHORT_DELAY_MS);
1184	>	}
1185	>	}
1186	>
1187	>	public class SmallRunnable extends CheckedRunnable {
1188	>	protected void realRun() throws Throwable {
1189	>	delay(SMALL_DELAY_MS);
1190	>	}
1191	>	}
1192	>
1193	>	public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1194	>	protected void realRun() {
1195		try {
1196	<	Thread.sleep(MEDIUM_DELAY_MS);
1197	<	threadShouldThrow();
502	<	}
503	<	catch(InterruptedException success) {
504	<	}
1196	>	delay(SMALL_DELAY_MS);
1197	>	} catch (InterruptedException ok) {}
1198		}
1199		}
1200
1201	<	class MediumPossiblyInterruptedRunnable implements Runnable {
1202	<	public void run() {
1201	>	public class SmallCallable extends CheckedCallable {
1202	>	protected Object realCall() throws InterruptedException {
1203	>	delay(SMALL_DELAY_MS);
1204	>	return Boolean.TRUE;
1205	>	}
1206	>	}
1207	>
1208	>	public class MediumRunnable extends CheckedRunnable {
1209	>	protected void realRun() throws Throwable {
1210	>	delay(MEDIUM_DELAY_MS);
1211	>	}
1212	>	}
1213	>
1214	>	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1215	>	protected void realRun() throws InterruptedException {
1216	>	delay(MEDIUM_DELAY_MS);
1217	>	}
1218	>	}
1219	>
1220	>	public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1221	>	return new CheckedRunnable() {
1222	>	protected void realRun() {
1223	>	try {
1224	>	delay(timeoutMillis);
1225	>	} catch (InterruptedException ok) {}
1226	>	}};
1227	>	}
1228	>
1229	>	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1230	>	protected void realRun() {
1231		try {
1232	<	Thread.sleep(MEDIUM_DELAY_MS);
1233	<	}
513	<	catch(InterruptedException success) {
514	<	}
1232	>	delay(MEDIUM_DELAY_MS);
1233	>	} catch (InterruptedException ok) {}
1234		}
1235		}
1236
1237	<	class LongPossiblyInterruptedRunnable implements Runnable {
1238	<	public void run() {
1237	>	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1238	>	protected void realRun() {
1239		try {
1240	<	Thread.sleep(LONG_DELAY_MS);
1241	<	}
523	<	catch(InterruptedException success) {
524	<	}
1240	>	delay(LONG_DELAY_MS);
1241	>	} catch (InterruptedException ok) {}
1242		}
1243		}
1244
1245		/**
1246		* For use as ThreadFactory in constructors
1247		*/
1248	<	static class SimpleThreadFactory implements ThreadFactory{
1249	<	public Thread newThread(Runnable r){
1248	>	public static class SimpleThreadFactory implements ThreadFactory {
1249	>	public Thread newThread(Runnable r) {
1250		return new Thread(r);
1251		}
1252		}
1253
1254	<	static class TrackedShortRunnable implements Runnable {
1255	<	volatile boolean done = false;
1254	>	public interface TrackedRunnable extends Runnable {
1255	>	boolean isDone();
1256	>	}
1257	>
1258	>	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1259	>	return new TrackedRunnable() {
1260	>	private volatile boolean done = false;
1261	>	public boolean isDone() { return done; }
1262	>	public void run() {
1263	>	try {
1264	>	delay(timeoutMillis);
1265	>	done = true;
1266	>	} catch (InterruptedException ok) {}
1267	>	}
1268	>	};
1269	>	}
1270	>
1271	>	public static class TrackedShortRunnable implements Runnable {
1272	>	public volatile boolean done = false;
1273	>	public void run() {
1274	>	try {
1275	>	delay(SHORT_DELAY_MS);
1276	>	done = true;
1277	>	} catch (InterruptedException ok) {}
1278	>	}
1279	>	}
1280	>
1281	>	public static class TrackedSmallRunnable implements Runnable {
1282	>	public volatile boolean done = false;
1283		public void run() {
1284		try {
1285	<	Thread.sleep(SMALL_DELAY_MS);
1285	>	delay(SMALL_DELAY_MS);
1286		done = true;
1287	<	} catch(Exception e){
544	<	}
1287	>	} catch (InterruptedException ok) {}
1288		}
1289		}
1290
1291	<	static class TrackedMediumRunnable implements Runnable {
1292	<	volatile boolean done = false;
1291	>	public static class TrackedMediumRunnable implements Runnable {
1292	>	public volatile boolean done = false;
1293		public void run() {
1294		try {
1295	<	Thread.sleep(MEDIUM_DELAY_MS);
1295	>	delay(MEDIUM_DELAY_MS);
1296		done = true;
1297	<	} catch(Exception e){
555	<	}
1297	>	} catch (InterruptedException ok) {}
1298		}
1299		}
1300
1301	<	static class TrackedLongRunnable implements Runnable {
1302	<	volatile boolean done = false;
1301	>	public static class TrackedLongRunnable implements Runnable {
1302	>	public volatile boolean done = false;
1303		public void run() {
1304		try {
1305	<	Thread.sleep(LONG_DELAY_MS);
1305	>	delay(LONG_DELAY_MS);
1306		done = true;
1307	<	} catch(Exception e){
566	<	}
1307	>	} catch (InterruptedException ok) {}
1308		}
1309		}
1310
1311	<	static class TrackedNoOpRunnable implements Runnable {
1312	<	volatile boolean done = false;
1311	>	public static class TrackedNoOpRunnable implements Runnable {
1312	>	public volatile boolean done = false;
1313		public void run() {
1314		done = true;
1315		}
1316		}
1317
1318	<	static class TrackedCallable implements Callable {
1319	<	volatile boolean done = false;
1318	>	public static class TrackedCallable implements Callable {
1319	>	public volatile boolean done = false;
1320		public Object call() {
1321		try {
1322	<	Thread.sleep(SMALL_DELAY_MS);
1322	>	delay(SMALL_DELAY_MS);
1323		done = true;
1324	<	} catch(Exception e){
584	<	}
1324	>	} catch (InterruptedException ok) {}
1325		return Boolean.TRUE;
1326		}
1327		}
1328
1329	+	/**
1330	+	* Analog of CheckedRunnable for RecursiveAction
1331	+	*/
1332	+	public abstract class CheckedRecursiveAction extends RecursiveAction {
1333	+	protected abstract void realCompute() throws Throwable;
1334	+
1335	+	@Override protected final void compute() {
1336	+	try {
1337	+	realCompute();
1338	+	} catch (Throwable t) {
1339	+	threadUnexpectedException(t);
1340	+	}
1341	+	}
1342	+	}
1343	+
1344	+	/**
1345	+	* Analog of CheckedCallable for RecursiveTask
1346	+	*/
1347	+	public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1348	+	protected abstract T realCompute() throws Throwable;
1349	+
1350	+	@Override protected final T compute() {
1351	+	try {
1352	+	return realCompute();
1353	+	} catch (Throwable t) {
1354	+	threadUnexpectedException(t);
1355	+	return null;
1356	+	}
1357	+	}
1358	+	}
1359
1360		/**
1361		* For use as RejectedExecutionHandler in constructors
1362		*/
1363	<	static class NoOpREHandler implements RejectedExecutionHandler{
1364	<	public void rejectedExecution(Runnable r, ThreadPoolExecutor executor){}
1363	>	public static class NoOpREHandler implements RejectedExecutionHandler {
1364	>	public void rejectedExecution(Runnable r,
1365	>	ThreadPoolExecutor executor) {}
1366		}
1367
1368	+	/**
1369	+	* A CyclicBarrier that uses timed await and fails with
1370	+	* AssertionFailedErrors instead of throwing checked exceptions.
1371	+	*/
1372	+	public class CheckedBarrier extends CyclicBarrier {
1373	+	public CheckedBarrier(int parties) { super(parties); }
1374	+
1375	+	public int await() {
1376	+	try {
1377	+	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1378	+	} catch (TimeoutException e) {
1379	+	throw new AssertionFailedError("timed out");
1380	+	} catch (Exception e) {
1381	+	AssertionFailedError afe =
1382	+	new AssertionFailedError("Unexpected exception: " + e);
1383	+	afe.initCause(e);
1384	+	throw afe;
1385	+	}
1386	+	}
1387	+	}
1388
1389	+	void checkEmpty(BlockingQueue q) {
1390	+	try {
1391	+	assertTrue(q.isEmpty());
1392	+	assertEquals(0, q.size());
1393	+	assertNull(q.peek());
1394	+	assertNull(q.poll());
1395	+	assertNull(q.poll(0, MILLISECONDS));
1396	+	assertEquals(q.toString(), "[]");
1397	+	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1398	+	assertFalse(q.iterator().hasNext());
1399	+	try {
1400	+	q.element();
1401	+	shouldThrow();
1402	+	} catch (NoSuchElementException success) {}
1403	+	try {
1404	+	q.iterator().next();
1405	+	shouldThrow();
1406	+	} catch (NoSuchElementException success) {}
1407	+	try {
1408	+	q.remove();
1409	+	shouldThrow();
1410	+	} catch (NoSuchElementException success) {}
1411	+	} catch (InterruptedException ie) {
1412	+	threadUnexpectedException(ie);
1413	+	}
1414	+	}
1415	+
1416	+	void assertSerialEquals(Object x, Object y) {
1417	+	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1418	+	}
1419	+
1420	+	void assertNotSerialEquals(Object x, Object y) {
1421	+	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1422	+	}
1423	+
1424	+	byte[] serialBytes(Object o) {
1425	+	try {
1426	+	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1427	+	ObjectOutputStream oos = new ObjectOutputStream(bos);
1428	+	oos.writeObject(o);
1429	+	oos.flush();
1430	+	oos.close();
1431	+	return bos.toByteArray();
1432	+	} catch (Throwable t) {
1433	+	threadUnexpectedException(t);
1434	+	return new byte[0];
1435	+	}
1436	+	}
1437	+
1438	+	@SuppressWarnings("unchecked")
1439	+	<T> T serialClone(T o) {
1440	+	try {
1441	+	ObjectInputStream ois = new ObjectInputStream
1442	+	(new ByteArrayInputStream(serialBytes(o)));
1443	+	T clone = (T) ois.readObject();
1444	+	assertSame(o.getClass(), clone.getClass());
1445	+	return clone;
1446	+	} catch (Throwable t) {
1447	+	threadUnexpectedException(t);
1448	+	return null;
1449	+	}
1450	+	}
1451	+
1452	+	public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1453	+	Runnable... throwingActions) {
1454	+	for (Runnable throwingAction : throwingActions) {
1455	+	boolean threw = false;
1456	+	try { throwingAction.run(); }
1457	+	catch (Throwable t) {
1458	+	threw = true;
1459	+	if (!expectedExceptionClass.isInstance(t)) {
1460	+	AssertionFailedError afe =
1461	+	new AssertionFailedError
1462	+	("Expected " + expectedExceptionClass.getName() +
1463	+	", got " + t.getClass().getName());
1464	+	afe.initCause(t);
1465	+	threadUnexpectedException(afe);
1466	+	}
1467	+	}
1468	+	if (!threw)
1469	+	shouldThrow(expectedExceptionClass.getName());
1470	+	}
1471	+	}
1472	+
1473	+	public void assertIteratorExhausted(Iterator<?> it) {
1474	+	try {
1475	+	it.next();
1476	+	shouldThrow();
1477	+	} catch (NoSuchElementException success) {}
1478	+	assertFalse(it.hasNext());
1479	+	}
1480		}

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