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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.34 by jsr166, Fri Jul 31 23:53:23 2009 UTC vs.
Revision 1.118 by jsr166, Mon Jun 16 18:01:38 2014 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.*;
10	>	import java.io.ByteArrayInputStream;
11	>	import java.io.ByteArrayOutputStream;
12	>	import java.io.ObjectInputStream;
13	>	import java.io.ObjectOutputStream;
14	>	import java.lang.management.ManagementFactory;
15	>	import java.lang.management.ThreadInfo;
16	>	import java.lang.reflect.Method;
17	>	import java.util.ArrayList;
18	>	import java.util.Arrays;
19	>	import java.util.Date;
20	>	import java.util.Enumeration;
21	>	import java.util.List;
22	>	import java.util.NoSuchElementException;
23	>	import java.util.PropertyPermission;
24		import java.util.concurrent.*;
25	<	import java.io.*;
26	<	import java.security.*;
25	>	import java.util.concurrent.atomic.AtomicBoolean;
26	>	import java.util.concurrent.atomic.AtomicReference;
27	>	import static java.util.concurrent.TimeUnit.MILLISECONDS;
28	>	import static java.util.concurrent.TimeUnit.NANOSECONDS;
29	>	import java.util.regex.Pattern;
30	>	import java.security.CodeSource;
31	>	import java.security.Permission;
32	>	import java.security.PermissionCollection;
33	>	import java.security.Permissions;
34	>	import java.security.Policy;
35	>	import java.security.ProtectionDomain;
36	>	import java.security.SecurityPermission;
37
38		/**
39		* Base class for JSR166 Junit TCK tests.  Defines some constants,
#	Line 25 | Line 48 | import java.security.*;
48		* <li> All assertions in code running in generated threads must use
49		* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link
50		* #threadAssertEquals}, or {@link #threadAssertNull}, (not
51	<	* <tt>fail</tt>, <tt>assertTrue</tt>, etc.) It is OK (but not
51	>	* {@code fail}, {@code assertTrue}, etc.) It is OK (but not
52		* particularly recommended) for other code to use these forms too.
53		* Only the most typically used JUnit assertion methods are defined
54		* this way, but enough to live with.</li>
55		*
56		* <li> If you override {@link #setUp} or {@link #tearDown}, make sure
57	<	* to invoke <tt>super.setUp</tt> and <tt>super.tearDown</tt> within
57	>	* to invoke {@code super.setUp} and {@code super.tearDown} within
58		* them. These methods are used to clear and check for thread
59		* assertion failures.</li>
60		*
61	<	* <li>All delays and timeouts must use one of the constants <tt>
62	<	* SHORT_DELAY_MS</tt>, <tt> SMALL_DELAY_MS</tt>, <tt> MEDIUM_DELAY_MS</tt>,
63	<	* <tt> LONG_DELAY_MS</tt>. The idea here is that a SHORT is always
61	>	* <li>All delays and timeouts must use one of the constants {@code
62	>	* SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS},
63	>	* {@code LONG_DELAY_MS}. The idea here is that a SHORT is always
64		* discriminable from zero time, and always allows enough time for the
65		* small amounts of computation (creating a thread, calling a few
66		* methods, etc) needed to reach a timeout point. Similarly, a SMALL
#	Line 47 | Line 70 | import java.security.*;
70		* in one spot to rerun tests on slower platforms.</li>
71		*
72		* <li> All threads generated must be joined inside each test case
73	<	* method (or <tt>fail</tt> to do so) before returning from the
74	<	* method. The <tt> joinPool</tt> method can be used to do this when
73	>	* method (or {@code fail} to do so) before returning from the
74	>	* method. The {@code joinPool} method can be used to do this when
75		* using Executors.</li>
76		*
77		* </ol>
78		*
79	<	* <p> <b>Other notes</b>
79	>	* <p><b>Other notes</b>
80		* <ul>
81		*
82		* <li> Usually, there is one testcase method per JSR166 method
#	Line 80 | Line 103 | import java.security.*;
103		* any particular package to simplify things for people integrating
104		* them in TCK test suites.</li>
105		*
106	<	* <li> As a convenience, the <tt>main</tt> of this class (JSR166TestCase)
106	>	* <li> As a convenience, the {@code main} of this class (JSR166TestCase)
107		* runs all JSR166 unit tests.</li>
108		*
109		* </ul>
110		*/
111		public class JSR166TestCase extends TestCase {
112	+	private static final boolean useSecurityManager =
113	+	Boolean.getBoolean("jsr166.useSecurityManager");
114	+
115	+	protected static final boolean expensiveTests =
116	+	Boolean.getBoolean("jsr166.expensiveTests");
117	+
118	+	protected static final boolean testImplementationDetails =
119	+	Boolean.getBoolean("jsr166.testImplementationDetails");
120	+
121	+	/**
122	+	* If true, report on stdout all "slow" tests, that is, ones that
123	+	* take more than profileThreshold milliseconds to execute.
124	+	*/
125	+	private static final boolean profileTests =
126	+	Boolean.getBoolean("jsr166.profileTests");
127	+
128	+	/**
129	+	* The number of milliseconds that tests are permitted for
130	+	* execution without being reported, when profileTests is set.
131	+	*/
132	+	private static final long profileThreshold =
133	+	Long.getLong("jsr166.profileThreshold", 100);
134	+
135	+	/**
136	+	* The number of repetitions per test (for tickling rare bugs).
137	+	*/
138	+	private static final int runsPerTest =
139	+	Integer.getInteger("jsr166.runsPerTest", 1);
140	+
141	+	/**
142	+	* A filter for tests to run, matching strings of the form
143	+	* methodName(className), e.g. "testInvokeAll5(ForkJoinPoolTest)"
144	+	* Usefully combined with jsr166.runsPerTest.
145	+	*/
146	+	private static final Pattern methodFilter = methodFilter();
147	+
148	+	private static Pattern methodFilter() {
149	+	String regex = System.getProperty("jsr166.methodFilter");
150	+	return (regex == null) ? null : Pattern.compile(regex);
151	+	}
152	+
153	+	protected void runTest() throws Throwable {
154	+	if (methodFilter == null
155	+	|| methodFilter.matcher(toString()).find()) {
156	+	for (int i = 0; i < runsPerTest; i++) {
157	+	if (profileTests)
158	+	runTestProfiled();
159	+	else
160	+	super.runTest();
161	+	}
162	+	}
163	+	}
164	+
165	+	protected void runTestProfiled() throws Throwable {
166	+	// Warmup run, notably to trigger all needed classloading.
167	+	super.runTest();
168	+	long t0 = System.nanoTime();
169	+	try {
170	+	super.runTest();
171	+	} finally {
172	+	long elapsedMillis = millisElapsedSince(t0);
173	+	if (elapsedMillis >= profileThreshold)
174	+	System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
175	+	}
176	+	}
177	+
178		/**
179	<	* Runs all JSR166 unit tests using junit.textui.TestRunner
179	>	* Runs all JSR166 unit tests using junit.textui.TestRunner.
180	>	* Optional command line arg provides the number of iterations to
181	>	* repeat running the tests.
182		*/
183	<	public static void main (String[] args) {
184	<	int iters = 1;
185	<	if (args.length > 0)
186	<	iters = Integer.parseInt(args[0]);
183	>	public static void main(String[] args) {
184	>	if (useSecurityManager) {
185	>	System.err.println("Setting a permissive security manager");
186	>	Policy.setPolicy(permissivePolicy());
187	>	System.setSecurityManager(new SecurityManager());
188	>	}
189	>	int iters = (args.length == 0) ? 1 : Integer.parseInt(args[0]);
190	>
191		Test s = suite();
192		for (int i = 0; i < iters; ++i) {
193	<	junit.textui.TestRunner.run (s);
193	>	junit.textui.TestRunner.run(s);
194		System.gc();
195		System.runFinalization();
196		}
197		System.exit(0);
198		}
199
200	<	/**
201	<	* Collects all JSR166 unit tests as one suite
202	<	*/
203	<	public static Test suite ( ) {
204	<	TestSuite suite = new TestSuite("JSR166 Unit Tests");
200	>	public static TestSuite newTestSuite(Object... suiteOrClasses) {
201	>	TestSuite suite = new TestSuite();
202	>	for (Object suiteOrClass : suiteOrClasses) {
203	>	if (suiteOrClass instanceof TestSuite)
204	>	suite.addTest((TestSuite) suiteOrClass);
205	>	else if (suiteOrClass instanceof Class)
206	>	suite.addTest(new TestSuite((Class<?>) suiteOrClass));
207	>	else
208	>	throw new ClassCastException("not a test suite or class");
209	>	}
210	>	return suite;
211	>	}
212	>
213	>	public static void addNamedTestClasses(TestSuite suite,
214	>	String... testClassNames) {
215	>	for (String testClassName : testClassNames) {
216	>	try {
217	>	Class<?> testClass = Class.forName(testClassName);
218	>	Method m = testClass.getDeclaredMethod("suite",
219	>	new Class<?>[0]);
220	>	suite.addTest(newTestSuite((Test)m.invoke(null)));
221	>	} catch (Exception e) {
222	>	throw new Error("Missing test class", e);
223	>	}
224	>	}
225	>	}
226
227	<	suite.addTest(new TestSuite(ForkJoinPoolTest.class));
228	<	suite.addTest(new TestSuite(ForkJoinTaskTest.class));
229	<	suite.addTest(new TestSuite(RecursiveActionTest.class));
230	<	suite.addTest(new TestSuite(RecursiveTaskTest.class));
231	<	suite.addTest(new TestSuite(LinkedTransferQueueTest.class));
232	<	suite.addTest(new TestSuite(PhaserTest.class));
233	<	suite.addTest(new TestSuite(ThreadLocalRandomTest.class));
234	<	suite.addTest(new TestSuite(AbstractExecutorServiceTest.class));
235	<	suite.addTest(new TestSuite(AbstractQueueTest.class));
236	<	suite.addTest(new TestSuite(AbstractQueuedSynchronizerTest.class));
237	<	suite.addTest(new TestSuite(AbstractQueuedLongSynchronizerTest.class));
238	<	suite.addTest(new TestSuite(ArrayBlockingQueueTest.class));
239	<	suite.addTest(new TestSuite(ArrayDequeTest.class));
240	<	suite.addTest(new TestSuite(AtomicBooleanTest.class));
241	<	suite.addTest(new TestSuite(AtomicIntegerArrayTest.class));
242	<	suite.addTest(new TestSuite(AtomicIntegerFieldUpdaterTest.class));
243	<	suite.addTest(new TestSuite(AtomicIntegerTest.class));
244	<	suite.addTest(new TestSuite(AtomicLongArrayTest.class));
245	<	suite.addTest(new TestSuite(AtomicLongFieldUpdaterTest.class));
246	<	suite.addTest(new TestSuite(AtomicLongTest.class));
247	<	suite.addTest(new TestSuite(AtomicMarkableReferenceTest.class));
248	<	suite.addTest(new TestSuite(AtomicReferenceArrayTest.class));
249	<	suite.addTest(new TestSuite(AtomicReferenceFieldUpdaterTest.class));
250	<	suite.addTest(new TestSuite(AtomicReferenceTest.class));
251	<	suite.addTest(new TestSuite(AtomicStampedReferenceTest.class));
252	<	suite.addTest(new TestSuite(ConcurrentHashMapTest.class));
253	<	suite.addTest(new TestSuite(ConcurrentLinkedQueueTest.class));
254	<	suite.addTest(new TestSuite(ConcurrentSkipListMapTest.class));
255	<	suite.addTest(new TestSuite(ConcurrentSkipListSubMapTest.class));
256	<	suite.addTest(new TestSuite(ConcurrentSkipListSetTest.class));
257	<	suite.addTest(new TestSuite(ConcurrentSkipListSubSetTest.class));
258	<	suite.addTest(new TestSuite(CopyOnWriteArrayListTest.class));
259	<	suite.addTest(new TestSuite(CopyOnWriteArraySetTest.class));
260	<	suite.addTest(new TestSuite(CountDownLatchTest.class));
261	<	suite.addTest(new TestSuite(CyclicBarrierTest.class));
262	<	suite.addTest(new TestSuite(DelayQueueTest.class));
263	<	suite.addTest(new TestSuite(EntryTest.class));
264	<	suite.addTest(new TestSuite(ExchangerTest.class));
265	<	suite.addTest(new TestSuite(ExecutorsTest.class));
266	<	suite.addTest(new TestSuite(ExecutorCompletionServiceTest.class));
267	<	suite.addTest(new TestSuite(FutureTaskTest.class));
268	<	suite.addTest(new TestSuite(LinkedBlockingDequeTest.class));
269	<	suite.addTest(new TestSuite(LinkedBlockingQueueTest.class));
270	<	suite.addTest(new TestSuite(LinkedListTest.class));
271	<	suite.addTest(new TestSuite(LockSupportTest.class));
272	<	suite.addTest(new TestSuite(PriorityBlockingQueueTest.class));
273	<	suite.addTest(new TestSuite(PriorityQueueTest.class));
274	<	suite.addTest(new TestSuite(ReentrantLockTest.class));
275	<	suite.addTest(new TestSuite(ReentrantReadWriteLockTest.class));
276	<	suite.addTest(new TestSuite(ScheduledExecutorTest.class));
277	<	suite.addTest(new TestSuite(ScheduledExecutorSubclassTest.class));
278	<	suite.addTest(new TestSuite(SemaphoreTest.class));
279	<	suite.addTest(new TestSuite(SynchronousQueueTest.class));
280	<	suite.addTest(new TestSuite(SystemTest.class));
281	<	suite.addTest(new TestSuite(ThreadLocalTest.class));
282	<	suite.addTest(new TestSuite(ThreadPoolExecutorTest.class));
283	<	suite.addTest(new TestSuite(ThreadPoolExecutorSubclassTest.class));
284	<	suite.addTest(new TestSuite(ThreadTest.class));
285	<	suite.addTest(new TestSuite(TimeUnitTest.class));
286	<	suite.addTest(new TestSuite(TreeMapTest.class));
287	<	suite.addTest(new TestSuite(TreeSetTest.class));
288	<	suite.addTest(new TestSuite(TreeSubMapTest.class));
289	<	suite.addTest(new TestSuite(TreeSubSetTest.class));
227	>	public static final double JAVA_CLASS_VERSION;
228	>	public static final String JAVA_SPECIFICATION_VERSION;
229	>	static {
230	>	try {
231	>	JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
232	>	new java.security.PrivilegedAction<Double>() {
233	>	public Double run() {
234	>	return Double.valueOf(System.getProperty("java.class.version"));}});
235	>	JAVA_SPECIFICATION_VERSION = java.security.AccessController.doPrivileged(
236	>	new java.security.PrivilegedAction<String>() {
237	>	public String run() {
238	>	return System.getProperty("java.specification.version");}});
239	>	} catch (Throwable t) {
240	>	throw new Error(t);
241	>	}
242	>	}
243	>
244	>	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
245	>	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
246	>	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
247	>	public static boolean atLeastJava9() {
248	>	// As of 2014-05, java9 still uses 52.0 class file version
249	>	return JAVA_SPECIFICATION_VERSION.startsWith("1.9");
250	>	}
251	>
252	>	/**
253	>	* Collects all JSR166 unit tests as one suite.
254	>	*/
255	>	public static Test suite() {
256	>	// Java7+ test classes
257	>	TestSuite suite = newTestSuite(
258	>	ForkJoinPoolTest.suite(),
259	>	ForkJoinTaskTest.suite(),
260	>	RecursiveActionTest.suite(),
261	>	RecursiveTaskTest.suite(),
262	>	LinkedTransferQueueTest.suite(),
263	>	PhaserTest.suite(),
264	>	ThreadLocalRandomTest.suite(),
265	>	AbstractExecutorServiceTest.suite(),
266	>	AbstractQueueTest.suite(),
267	>	AbstractQueuedSynchronizerTest.suite(),
268	>	AbstractQueuedLongSynchronizerTest.suite(),
269	>	ArrayBlockingQueueTest.suite(),
270	>	ArrayDequeTest.suite(),
271	>	AtomicBooleanTest.suite(),
272	>	AtomicIntegerArrayTest.suite(),
273	>	AtomicIntegerFieldUpdaterTest.suite(),
274	>	AtomicIntegerTest.suite(),
275	>	AtomicLongArrayTest.suite(),
276	>	AtomicLongFieldUpdaterTest.suite(),
277	>	AtomicLongTest.suite(),
278	>	AtomicMarkableReferenceTest.suite(),
279	>	AtomicReferenceArrayTest.suite(),
280	>	AtomicReferenceFieldUpdaterTest.suite(),
281	>	AtomicReferenceTest.suite(),
282	>	AtomicStampedReferenceTest.suite(),
283	>	ConcurrentHashMapTest.suite(),
284	>	ConcurrentLinkedDequeTest.suite(),
285	>	ConcurrentLinkedQueueTest.suite(),
286	>	ConcurrentSkipListMapTest.suite(),
287	>	ConcurrentSkipListSubMapTest.suite(),
288	>	ConcurrentSkipListSetTest.suite(),
289	>	ConcurrentSkipListSubSetTest.suite(),
290	>	CopyOnWriteArrayListTest.suite(),
291	>	CopyOnWriteArraySetTest.suite(),
292	>	CountDownLatchTest.suite(),
293	>	CyclicBarrierTest.suite(),
294	>	DelayQueueTest.suite(),
295	>	EntryTest.suite(),
296	>	ExchangerTest.suite(),
297	>	ExecutorsTest.suite(),
298	>	ExecutorCompletionServiceTest.suite(),
299	>	FutureTaskTest.suite(),
300	>	LinkedBlockingDequeTest.suite(),
301	>	LinkedBlockingQueueTest.suite(),
302	>	LinkedListTest.suite(),
303	>	LockSupportTest.suite(),
304	>	PriorityBlockingQueueTest.suite(),
305	>	PriorityQueueTest.suite(),
306	>	ReentrantLockTest.suite(),
307	>	ReentrantReadWriteLockTest.suite(),
308	>	ScheduledExecutorTest.suite(),
309	>	ScheduledExecutorSubclassTest.suite(),
310	>	SemaphoreTest.suite(),
311	>	SynchronousQueueTest.suite(),
312	>	SystemTest.suite(),
313	>	ThreadLocalTest.suite(),
314	>	ThreadPoolExecutorTest.suite(),
315	>	ThreadPoolExecutorSubclassTest.suite(),
316	>	ThreadTest.suite(),
317	>	TimeUnitTest.suite(),
318	>	TreeMapTest.suite(),
319	>	TreeSetTest.suite(),
320	>	TreeSubMapTest.suite(),
321	>	TreeSubSetTest.suite());
322	>
323	>	// Java8+ test classes
324	>	if (atLeastJava8()) {
325	>	String[] java8TestClassNames = {
326	>	"Atomic8Test",
327	>	"CompletableFutureTest",
328	>	"ConcurrentHashMap8Test",
329	>	"CountedCompleterTest",
330	>	"DoubleAccumulatorTest",
331	>	"DoubleAdderTest",
332	>	"ForkJoinPool8Test",
333	>	"ForkJoinTask8Test",
334	>	"LongAccumulatorTest",
335	>	"LongAdderTest",
336	>	"SplittableRandomTest",
337	>	"StampedLockTest",
338	>	"ThreadLocalRandom8Test",
339	>	};
340	>	addNamedTestClasses(suite, java8TestClassNames);
341	>	}
342	>
343	>	// Java9+ test classes
344	>	if (atLeastJava9()) {
345	>	String[] java9TestClassNames = {
346	>	"ThreadPoolExecutor9Test",
347	>	};
348	>	addNamedTestClasses(suite, java9TestClassNames);
349	>	}
350
351		return suite;
352		}
353
354	+	// Delays for timing-dependent tests, in milliseconds.
355
356		public static long SHORT_DELAY_MS;
357		public static long SMALL_DELAY_MS;
358		public static long MEDIUM_DELAY_MS;
359		public static long LONG_DELAY_MS;
360
184	–
361		/**
362		* Returns the shortest timed delay. This could
363		* be reimplemented to use for example a Property.
#	Line 190 | Line 366 | public class JSR166TestCase extends Test
366		return 50;
367		}
368
193	–
369		/**
370		* Sets delays as multiples of SHORT_DELAY.
371		*/
372	<	protected  void setDelays() {
372	>	protected void setDelays() {
373		SHORT_DELAY_MS = getShortDelay();
374	<	SMALL_DELAY_MS = SHORT_DELAY_MS * 5;
374	>	SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
375		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
376	<	LONG_DELAY_MS = SHORT_DELAY_MS * 50;
376	>	LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
377	>	}
378	>
379	>	/**
380	>	* Returns a timeout in milliseconds to be used in tests that
381	>	* verify that operations block or time out.
382	>	*/
383	>	long timeoutMillis() {
384	>	return SHORT_DELAY_MS / 4;
385	>	}
386	>
387	>	/**
388	>	* Returns a new Date instance representing a time delayMillis
389	>	* milliseconds in the future.
390	>	*/
391	>	Date delayedDate(long delayMillis) {
392	>	return new Date(System.currentTimeMillis() + delayMillis);
393		}
394
395		/**
396	<	* Flag set true if any threadAssert methods fail
396	>	* The first exception encountered if any threadAssertXXX method fails.
397		*/
398	<	volatile boolean threadFailed;
398	>	private final AtomicReference<Throwable> threadFailure
399	>	= new AtomicReference<Throwable>(null);
400
401		/**
402	<	* Initializes test to indicate that no thread assertions have failed
402	>	* Records an exception so that it can be rethrown later in the test
403	>	* harness thread, triggering a test case failure.  Only the first
404	>	* failure is recorded; subsequent calls to this method from within
405	>	* the same test have no effect.
406		*/
407	+	public void threadRecordFailure(Throwable t) {
408	+	threadFailure.compareAndSet(null, t);
409	+	}
410	+
411		public void setUp() {
412		setDelays();
214	–	threadFailed = false;
413		}
414
415		/**
416	<	* Triggers test case failure if any thread assertions have failed
417	<	*/
418	<	public void tearDown() {
419	<	assertFalse(threadFailed);
416	>	* Extra checks that get done for all test cases.
417	>	*
418	>	* Triggers test case failure if any thread assertions have failed,
419	>	* by rethrowing, in the test harness thread, any exception recorded
420	>	* earlier by threadRecordFailure.
421	>	*
422	>	* Triggers test case failure if interrupt status is set in the main thread.
423	>	*/
424	>	public void tearDown() throws Exception {
425	>	Throwable t = threadFailure.getAndSet(null);
426	>	if (t != null) {
427	>	if (t instanceof Error)
428	>	throw (Error) t;
429	>	else if (t instanceof RuntimeException)
430	>	throw (RuntimeException) t;
431	>	else if (t instanceof Exception)
432	>	throw (Exception) t;
433	>	else {
434	>	AssertionFailedError afe =
435	>	new AssertionFailedError(t.toString());
436	>	afe.initCause(t);
437	>	throw afe;
438	>	}
439	>	}
440	>
441	>	if (Thread.interrupted())
442	>	throw new AssertionFailedError("interrupt status set in main thread");
443	>
444	>	checkForkJoinPoolThreadLeaks();
445		}
446
447		/**
448	<	* Fail, also setting status to indicate current testcase should fail
448	>	* Find missing try { ... } finally { joinPool(e); }
449	>	*/
450	>	void checkForkJoinPoolThreadLeaks() throws InterruptedException {
451	>	Thread[] survivors = new Thread[5];
452	>	int count = Thread.enumerate(survivors);
453	>	for (int i = 0; i < count; i++) {
454	>	Thread thread = survivors[i];
455	>	String name = thread.getName();
456	>	if (name.startsWith("ForkJoinPool-")) {
457	>	// give thread some time to terminate
458	>	thread.join(LONG_DELAY_MS);
459	>	if (!thread.isAlive()) continue;
460	>	thread.stop();
461	>	throw new AssertionFailedError
462	>	(String.format("Found leaked ForkJoinPool thread test=%s thread=%s%n",
463	>	toString(), name));
464	>	}
465	>	}
466	>	}
467	>
468	>	/**
469	>	* Just like fail(reason), but additionally recording (using
470	>	* threadRecordFailure) any AssertionFailedError thrown, so that
471	>	* the current testcase will fail.
472		*/
473		public void threadFail(String reason) {
474	<	threadFailed = true;
475	<	fail(reason);
474	>	try {
475	>	fail(reason);
476	>	} catch (AssertionFailedError t) {
477	>	threadRecordFailure(t);
478	>	fail(reason);
479	>	}
480		}
481
482		/**
483	<	* If expression not true, set status to indicate current testcase
484	<	* should fail
483	>	* Just like assertTrue(b), but additionally recording (using
484	>	* threadRecordFailure) any AssertionFailedError thrown, so that
485	>	* the current testcase will fail.
486		*/
487		public void threadAssertTrue(boolean b) {
488	<	if (!b) {
238	<	threadFailed = true;
488	>	try {
489		assertTrue(b);
490	+	} catch (AssertionFailedError t) {
491	+	threadRecordFailure(t);
492	+	throw t;
493		}
494		}
495
496		/**
497	<	* If expression not false, set status to indicate current testcase
498	<	* should fail
497	>	* Just like assertFalse(b), but additionally recording (using
498	>	* threadRecordFailure) any AssertionFailedError thrown, so that
499	>	* the current testcase will fail.
500		*/
501		public void threadAssertFalse(boolean b) {
502	<	if (b) {
249	<	threadFailed = true;
502	>	try {
503		assertFalse(b);
504	+	} catch (AssertionFailedError t) {
505	+	threadRecordFailure(t);
506	+	throw t;
507		}
508		}
509
510		/**
511	<	* If argument not null, set status to indicate current testcase
512	<	* should fail
511	>	* Just like assertNull(x), but additionally recording (using
512	>	* threadRecordFailure) any AssertionFailedError thrown, so that
513	>	* the current testcase will fail.
514		*/
515		public void threadAssertNull(Object x) {
516	<	if (x != null) {
260	<	threadFailed = true;
516	>	try {
517		assertNull(x);
518	+	} catch (AssertionFailedError t) {
519	+	threadRecordFailure(t);
520	+	throw t;
521		}
522		}
523
524		/**
525	<	* If arguments not equal, set status to indicate current testcase
526	<	* should fail
525	>	* Just like assertEquals(x, y), but additionally recording (using
526	>	* threadRecordFailure) any AssertionFailedError thrown, so that
527	>	* the current testcase will fail.
528		*/
529		public void threadAssertEquals(long x, long y) {
530	<	if (x != y) {
271	<	threadFailed = true;
530	>	try {
531		assertEquals(x, y);
532	+	} catch (AssertionFailedError t) {
533	+	threadRecordFailure(t);
534	+	throw t;
535		}
536		}
537
538		/**
539	<	* If arguments not equal, set status to indicate current testcase
540	<	* should fail
539	>	* Just like assertEquals(x, y), but additionally recording (using
540	>	* threadRecordFailure) any AssertionFailedError thrown, so that
541	>	* the current testcase will fail.
542		*/
543		public void threadAssertEquals(Object x, Object y) {
544	<	if (x != y && (x == null || !x.equals(y))) {
282	<	threadFailed = true;
544	>	try {
545		assertEquals(x, y);
546	+	} catch (AssertionFailedError t) {
547	+	threadRecordFailure(t);
548	+	throw t;
549	+	} catch (Throwable t) {
550	+	threadUnexpectedException(t);
551		}
552		}
553
554		/**
555	<	* threadFail with message "should throw exception"
555	>	* Just like assertSame(x, y), but additionally recording (using
556	>	* threadRecordFailure) any AssertionFailedError thrown, so that
557	>	* the current testcase will fail.
558		*/
559	<	public void threadShouldThrow() {
559	>	public void threadAssertSame(Object x, Object y) {
560		try {
561	<	threadFailed = true;
562	<	fail("should throw exception");
563	<	} catch (AssertionFailedError e) {
564	<	e.printStackTrace();
296	<	throw e;
561	>	assertSame(x, y);
562	>	} catch (AssertionFailedError t) {
563	>	threadRecordFailure(t);
564	>	throw t;
565		}
566		}
567
568		/**
569	<	* threadFail with message "Unexpected exception"
569	>	* Calls threadFail with message "should throw exception".
570		*/
571	<	public void threadUnexpectedException() {
572	<	threadFailed = true;
305	<	fail("Unexpected exception");
571	>	public void threadShouldThrow() {
572	>	threadFail("should throw exception");
573		}
574
575		/**
576	<	* threadFail with message "Unexpected exception", with argument
576	>	* Calls threadFail with message "should throw" + exceptionName.
577		*/
578	<	public void threadUnexpectedException(Throwable ex) {
579	<	threadFailed = true;
313	<	ex.printStackTrace();
314	<	fail("Unexpected exception: " + ex);
578	>	public void threadShouldThrow(String exceptionName) {
579	>	threadFail("should throw " + exceptionName);
580		}
581
582		/**
583	<	* Wait out termination of a thread pool or fail doing so
583	>	* Records the given exception using {@link #threadRecordFailure},
584	>	* then rethrows the exception, wrapping it in an
585	>	* AssertionFailedError if necessary.
586		*/
587	<	public void joinPool(ExecutorService exec) {
587	>	public void threadUnexpectedException(Throwable t) {
588	>	threadRecordFailure(t);
589	>	t.printStackTrace();
590	>	if (t instanceof RuntimeException)
591	>	throw (RuntimeException) t;
592	>	else if (t instanceof Error)
593	>	throw (Error) t;
594	>	else {
595	>	AssertionFailedError afe =
596	>	new AssertionFailedError("unexpected exception: " + t);
597	>	afe.initCause(t);
598	>	throw afe;
599	>	}
600	>	}
601	>
602	>	/**
603	>	* Delays, via Thread.sleep, for the given millisecond delay, but
604	>	* if the sleep is shorter than specified, may re-sleep or yield
605	>	* until time elapses.
606	>	*/
607	>	static void delay(long millis) throws InterruptedException {
608	>	long startTime = System.nanoTime();
609	>	long ns = millis * 1000 * 1000;
610	>	for (;;) {
611	>	if (millis > 0L)
612	>	Thread.sleep(millis);
613	>	else // too short to sleep
614	>	Thread.yield();
615	>	long d = ns - (System.nanoTime() - startTime);
616	>	if (d > 0L)
617	>	millis = d / (1000 * 1000);
618	>	else
619	>	break;
620	>	}
621	>	}
622	>
623	>	/**
624	>	* Waits out termination of a thread pool or fails doing so.
625	>	*/
626	>	void joinPool(ExecutorService exec) {
627		try {
628		exec.shutdown();
629	<	assertTrue(exec.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
629	>	assertTrue("ExecutorService did not terminate in a timely manner",
630	>	exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS));
631		} catch (SecurityException ok) {
632		// Allowed in case test doesn't have privs
633		} catch (InterruptedException ie) {
634	<	fail("Unexpected exception");
634	>	fail("Unexpected InterruptedException");
635	>	}
636	>	}
637	>
638	>	/**
639	>	* A debugging tool to print all stack traces, as jstack does.
640	>	*/
641	>	static void printAllStackTraces() {
642	>	for (ThreadInfo info :
643	>	ManagementFactory.getThreadMXBean()
644	>	.dumpAllThreads(true, true))
645	>	System.err.print(info);
646	>	}
647	>
648	>	/**
649	>	* Checks that thread does not terminate within the default
650	>	* millisecond delay of {@code timeoutMillis()}.
651	>	*/
652	>	void assertThreadStaysAlive(Thread thread) {
653	>	assertThreadStaysAlive(thread, timeoutMillis());
654	>	}
655	>
656	>	/**
657	>	* Checks that thread does not terminate within the given millisecond delay.
658	>	*/
659	>	void assertThreadStaysAlive(Thread thread, long millis) {
660	>	try {
661	>	// No need to optimize the failing case via Thread.join.
662	>	delay(millis);
663	>	assertTrue(thread.isAlive());
664	>	} catch (InterruptedException ie) {
665	>	fail("Unexpected InterruptedException");
666		}
667		}
668
669	+	/**
670	+	* Checks that the threads do not terminate within the default
671	+	* millisecond delay of {@code timeoutMillis()}.
672	+	*/
673	+	void assertThreadsStayAlive(Thread... threads) {
674	+	assertThreadsStayAlive(timeoutMillis(), threads);
675	+	}
676
677		/**
678	<	* fail with message "should throw exception"
678	>	* Checks that the threads do not terminate within the given millisecond delay.
679	>	*/
680	>	void assertThreadsStayAlive(long millis, Thread... threads) {
681	>	try {
682	>	// No need to optimize the failing case via Thread.join.
683	>	delay(millis);
684	>	for (Thread thread : threads)
685	>	assertTrue(thread.isAlive());
686	>	} catch (InterruptedException ie) {
687	>	fail("Unexpected InterruptedException");
688	>	}
689	>	}
690	>
691	>	/**
692	>	* Checks that future.get times out, with the default timeout of
693	>	* {@code timeoutMillis()}.
694	>	*/
695	>	void assertFutureTimesOut(Future future) {
696	>	assertFutureTimesOut(future, timeoutMillis());
697	>	}
698	>
699	>	/**
700	>	* Checks that future.get times out, with the given millisecond timeout.
701	>	*/
702	>	void assertFutureTimesOut(Future future, long timeoutMillis) {
703	>	long startTime = System.nanoTime();
704	>	try {
705	>	future.get(timeoutMillis, MILLISECONDS);
706	>	shouldThrow();
707	>	} catch (TimeoutException success) {
708	>	} catch (Exception e) {
709	>	threadUnexpectedException(e);
710	>	} finally { future.cancel(true); }
711	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
712	>	}
713	>
714	>	/**
715	>	* Fails with message "should throw exception".
716		*/
717		public void shouldThrow() {
718		fail("Should throw exception");
719		}
720
721		/**
722	<	* fail with message "Unexpected exception"
722	>	* Fails with message "should throw " + exceptionName.
723		*/
724	<	public void unexpectedException() {
725	<	fail("Unexpected exception");
724	>	public void shouldThrow(String exceptionName) {
725	>	fail("Should throw " + exceptionName);
726		}
727
346	–
728		/**
729		* The number of elements to place in collections, arrays, etc.
730		*/
731	<	static final int SIZE = 20;
731	>	public static final int SIZE = 20;
732
733		// Some convenient Integer constants
734
735	<	static final Integer zero = new Integer(0);
736	<	static final Integer one = new Integer(1);
737	<	static final Integer two = new Integer(2);
738	<	static final Integer three  = new Integer(3);
739	<	static final Integer four  = new Integer(4);
740	<	static final Integer five  = new Integer(5);
741	<	static final Integer six = new Integer(6);
742	<	static final Integer seven = new Integer(7);
743	<	static final Integer eight = new Integer(8);
744	<	static final Integer nine = new Integer(9);
745	<	static final Integer m1  = new Integer(-1);
746	<	static final Integer m2  = new Integer(-2);
747	<	static final Integer m3  = new Integer(-3);
748	<	static final Integer m4 = new Integer(-4);
749	<	static final Integer m5 = new Integer(-5);
750	<	static final Integer m6 = new Integer(-6);
751	<	static final Integer m10 = new Integer(-10);
735	>	public static final Integer zero  = new Integer(0);
736	>	public static final Integer one   = new Integer(1);
737	>	public static final Integer two   = new Integer(2);
738	>	public static final Integer three = new Integer(3);
739	>	public static final Integer four  = new Integer(4);
740	>	public static final Integer five  = new Integer(5);
741	>	public static final Integer six   = new Integer(6);
742	>	public static final Integer seven = new Integer(7);
743	>	public static final Integer eight = new Integer(8);
744	>	public static final Integer nine  = new Integer(9);
745	>	public static final Integer m1  = new Integer(-1);
746	>	public static final Integer m2  = new Integer(-2);
747	>	public static final Integer m3  = new Integer(-3);
748	>	public static final Integer m4  = new Integer(-4);
749	>	public static final Integer m5  = new Integer(-5);
750	>	public static final Integer m6  = new Integer(-6);
751	>	public static final Integer m10 = new Integer(-10);
752	>
753	>	/**
754	>	* Runs Runnable r with a security policy that permits precisely
755	>	* the specified permissions.  If there is no current security
756	>	* manager, the runnable is run twice, both with and without a
757	>	* security manager.  We require that any security manager permit
758	>	* getPolicy/setPolicy.
759	>	*/
760	>	public void runWithPermissions(Runnable r, Permission... permissions) {
761	>	SecurityManager sm = System.getSecurityManager();
762	>	if (sm == null) {
763	>	r.run();
764	>	}
765	>	runWithSecurityManagerWithPermissions(r, permissions);
766	>	}
767	>
768	>	/**
769	>	* Runs Runnable r with a security policy that permits precisely
770	>	* the specified permissions.  If there is no current security
771	>	* manager, a temporary one is set for the duration of the
772	>	* Runnable.  We require that any security manager permit
773	>	* getPolicy/setPolicy.
774	>	*/
775	>	public void runWithSecurityManagerWithPermissions(Runnable r,
776	>	Permission... permissions) {
777	>	SecurityManager sm = System.getSecurityManager();
778	>	if (sm == null) {
779	>	Policy savedPolicy = Policy.getPolicy();
780	>	try {
781	>	Policy.setPolicy(permissivePolicy());
782	>	System.setSecurityManager(new SecurityManager());
783	>	runWithSecurityManagerWithPermissions(r, permissions);
784	>	} finally {
785	>	System.setSecurityManager(null);
786	>	Policy.setPolicy(savedPolicy);
787	>	}
788	>	} else {
789	>	Policy savedPolicy = Policy.getPolicy();
790	>	AdjustablePolicy policy = new AdjustablePolicy(permissions);
791	>	Policy.setPolicy(policy);
792	>
793	>	try {
794	>	r.run();
795	>	} finally {
796	>	policy.addPermission(new SecurityPermission("setPolicy"));
797	>	Policy.setPolicy(savedPolicy);
798	>	}
799	>	}
800	>	}
801
802	+	/**
803	+	* Runs a runnable without any permissions.
804	+	*/
805	+	public void runWithoutPermissions(Runnable r) {
806	+	runWithPermissions(r);
807	+	}
808
809		/**
810		* A security policy where new permissions can be dynamically added
811		* or all cleared.
812		*/
813	<	static class AdjustablePolicy extends java.security.Policy {
813	>	public static class AdjustablePolicy extends java.security.Policy {
814		Permissions perms = new Permissions();
815	<	AdjustablePolicy() { }
815	>	AdjustablePolicy(Permission... permissions) {
816	>	for (Permission permission : permissions)
817	>	perms.add(permission);
818	>	}
819		void addPermission(Permission perm) { perms.add(perm); }
820		void clearPermissions() { perms = new Permissions(); }
821	<	public PermissionCollection getPermissions(CodeSource cs) {
822	<	return perms;
823	<	}
824	<	public PermissionCollection getPermissions(ProtectionDomain pd) {
825	<	return perms;
826	<	}
827	<	public boolean implies(ProtectionDomain pd, Permission p) {
828	<	return perms.implies(p);
829	<	}
830	<	public void refresh() {}
821	>	public PermissionCollection getPermissions(CodeSource cs) {
822	>	return perms;
823	>	}
824	>	public PermissionCollection getPermissions(ProtectionDomain pd) {
825	>	return perms;
826	>	}
827	>	public boolean implies(ProtectionDomain pd, Permission p) {
828	>	return perms.implies(p);
829	>	}
830	>	public void refresh() {}
831	>	public String toString() {
832	>	List<Permission> ps = new ArrayList<Permission>();
833	>	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
834	>	ps.add(e.nextElement());
835	>	return "AdjustablePolicy with permissions " + ps;
836	>	}
837		}
838
839	+	/**
840	+	* Returns a policy containing all the permissions we ever need.
841	+	*/
842	+	public static Policy permissivePolicy() {
843	+	return new AdjustablePolicy
844	+	// Permissions j.u.c. needs directly
845	+	(new RuntimePermission("modifyThread"),
846	+	new RuntimePermission("getClassLoader"),
847	+	new RuntimePermission("setContextClassLoader"),
848	+	// Permissions needed to change permissions!
849	+	new SecurityPermission("getPolicy"),
850	+	new SecurityPermission("setPolicy"),
851	+	new RuntimePermission("setSecurityManager"),
852	+	// Permissions needed by the junit test harness
853	+	new RuntimePermission("accessDeclaredMembers"),
854	+	new PropertyPermission("*", "read"),
855	+	new java.io.FilePermission("<<ALL FILES>>", "read"));
856	+	}
857
858	<	// Some convenient Runnable classes
858	>	/**
859	>	* Sleeps until the given time has elapsed.
860	>	* Throws AssertionFailedError if interrupted.
861	>	*/
862	>	void sleep(long millis) {
863	>	try {
864	>	delay(millis);
865	>	} catch (InterruptedException ie) {
866	>	AssertionFailedError afe =
867	>	new AssertionFailedError("Unexpected InterruptedException");
868	>	afe.initCause(ie);
869	>	throw afe;
870	>	}
871	>	}
872
873	<	static class NoOpRunnable implements Runnable {
874	<	public void run() {}
873	>	/**
874	>	* Spin-waits up to the specified number of milliseconds for the given
875	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
876	>	*/
877	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
878	>	long startTime = System.nanoTime();
879	>	for (;;) {
880	>	Thread.State s = thread.getState();
881	>	if (s == Thread.State.BLOCKED ||
882	>	s == Thread.State.WAITING ||
883	>	s == Thread.State.TIMED_WAITING)
884	>	return;
885	>	else if (s == Thread.State.TERMINATED)
886	>	fail("Unexpected thread termination");
887	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
888	>	threadAssertTrue(thread.isAlive());
889	>	return;
890	>	}
891	>	Thread.yield();
892	>	}
893		}
894
895	<	static class NoOpCallable implements Callable {
896	<	public Object call() { return Boolean.TRUE; }
895	>	/**
896	>	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
897	>	* state: BLOCKED, WAITING, or TIMED_WAITING.
898	>	*/
899	>	void waitForThreadToEnterWaitState(Thread thread) {
900	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
901		}
902
903	<	static final String TEST_STRING = "a test string";
903	>	/**
904	>	* Returns the number of milliseconds since time given by
905	>	* startNanoTime, which must have been previously returned from a
906	>	* call to {@link System.nanoTime()}.
907	>	*/
908	>	static long millisElapsedSince(long startNanoTime) {
909	>	return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
910	>	}
911
912	<	static class StringTask implements Callable<String> {
913	<	public String call() { return TEST_STRING; }
912	>	/**
913	>	* Returns a new started daemon Thread running the given runnable.
914	>	*/
915	>	Thread newStartedThread(Runnable runnable) {
916	>	Thread t = new Thread(runnable);
917	>	t.setDaemon(true);
918	>	t.start();
919	>	return t;
920		}
921
922	<	static class NPETask implements Callable<String> {
923	<	public String call() { throw new NullPointerException(); }
922	>	/**
923	>	* Waits for the specified time (in milliseconds) for the thread
924	>	* to terminate (using {@link Thread#join(long)}), else interrupts
925	>	* the thread (in the hope that it may terminate later) and fails.
926	>	*/
927	>	void awaitTermination(Thread t, long timeoutMillis) {
928	>	try {
929	>	t.join(timeoutMillis);
930	>	} catch (InterruptedException ie) {
931	>	threadUnexpectedException(ie);
932	>	} finally {
933	>	if (t.getState() != Thread.State.TERMINATED) {
934	>	t.interrupt();
935	>	fail("Test timed out");
936	>	}
937	>	}
938		}
939
940	<	static class CallableOne implements Callable<Integer> {
941	<	public Integer call() { return one; }
940	>	/**
941	>	* Waits for LONG_DELAY_MS milliseconds for the thread to
942	>	* terminate (using {@link Thread#join(long)}), else interrupts
943	>	* the thread (in the hope that it may terminate later) and fails.
944	>	*/
945	>	void awaitTermination(Thread t) {
946	>	awaitTermination(t, LONG_DELAY_MS);
947		}
948
949	<	class ShortRunnable implements Runnable {
950	<	public void run() {
949	>	// Some convenient Runnable classes
950	>
951	>	public abstract class CheckedRunnable implements Runnable {
952	>	protected abstract void realRun() throws Throwable;
953	>
954	>	public final void run() {
955		try {
956	<	Thread.sleep(SHORT_DELAY_MS);
957	<	}
958	<	catch (Exception e) {
425	<	threadUnexpectedException(e);
956	>	realRun();
957	>	} catch (Throwable t) {
958	>	threadUnexpectedException(t);
959		}
960		}
961		}
962
963	<	class ShortInterruptedRunnable implements Runnable {
964	<	public void run() {
963	>	public abstract class RunnableShouldThrow implements Runnable {
964	>	protected abstract void realRun() throws Throwable;
965	>
966	>	final Class<?> exceptionClass;
967	>
968	>	<T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) {
969	>	this.exceptionClass = exceptionClass;
970	>	}
971	>
972	>	public final void run() {
973		try {
974	<	Thread.sleep(SHORT_DELAY_MS);
975	<	threadShouldThrow();
976	<	}
977	<	catch (InterruptedException success) {
974	>	realRun();
975	>	threadShouldThrow(exceptionClass.getSimpleName());
976	>	} catch (Throwable t) {
977	>	if (! exceptionClass.isInstance(t))
978	>	threadUnexpectedException(t);
979		}
980		}
981		}
982
983	<	class SmallRunnable implements Runnable {
984	<	public void run() {
983	>	public abstract class ThreadShouldThrow extends Thread {
984	>	protected abstract void realRun() throws Throwable;
985	>
986	>	final Class<?> exceptionClass;
987	>
988	>	<T extends Throwable> ThreadShouldThrow(Class<T> exceptionClass) {
989	>	this.exceptionClass = exceptionClass;
990	>	}
991	>
992	>	public final void run() {
993		try {
994	<	Thread.sleep(SMALL_DELAY_MS);
995	<	}
996	<	catch (Exception e) {
997	<	threadUnexpectedException(e);
994	>	realRun();
995	>	threadShouldThrow(exceptionClass.getSimpleName());
996	>	} catch (Throwable t) {
997	>	if (! exceptionClass.isInstance(t))
998	>	threadUnexpectedException(t);
999		}
1000		}
1001		}
1002
1003	<	class SmallPossiblyInterruptedRunnable implements Runnable {
1004	<	public void run() {
1003	>	public abstract class CheckedInterruptedRunnable implements Runnable {
1004	>	protected abstract void realRun() throws Throwable;
1005	>
1006	>	public final void run() {
1007		try {
1008	<	Thread.sleep(SMALL_DELAY_MS);
1009	<	}
1010	<	catch (Exception e) {
1008	>	realRun();
1009	>	threadShouldThrow("InterruptedException");
1010	>	} catch (InterruptedException success) {
1011	>	threadAssertFalse(Thread.interrupted());
1012	>	} catch (Throwable t) {
1013	>	threadUnexpectedException(t);
1014		}
1015		}
1016		}
1017
1018	<	class SmallCallable implements Callable {
1019	<	public Object call() {
1018	>	public abstract class CheckedCallable<T> implements Callable<T> {
1019	>	protected abstract T realCall() throws Throwable;
1020	>
1021	>	public final T call() {
1022		try {
1023	<	Thread.sleep(SMALL_DELAY_MS);
1024	<	}
1025	<	catch (Exception e) {
1026	<	threadUnexpectedException(e);
1023	>	return realCall();
1024	>	} catch (Throwable t) {
1025	>	threadUnexpectedException(t);
1026	>	return null;
1027		}
470	–	return Boolean.TRUE;
1028		}
1029		}
1030
1031	<	class SmallInterruptedRunnable implements Runnable {
1032	<	public void run() {
1031	>	public abstract class CheckedInterruptedCallable<T>
1032	>	implements Callable<T> {
1033	>	protected abstract T realCall() throws Throwable;
1034	>
1035	>	public final T call() {
1036		try {
1037	<	Thread.sleep(SMALL_DELAY_MS);
1038	<	threadShouldThrow();
1039	<	}
1040	<	catch (InterruptedException success) {
1037	>	T result = realCall();
1038	>	threadShouldThrow("InterruptedException");
1039	>	return result;
1040	>	} catch (InterruptedException success) {
1041	>	threadAssertFalse(Thread.interrupted());
1042	>	} catch (Throwable t) {
1043	>	threadUnexpectedException(t);
1044		}
1045	+	return null;
1046		}
1047		}
1048
1049	+	public static class NoOpRunnable implements Runnable {
1050	+	public void run() {}
1051	+	}
1052
1053	<	class MediumRunnable implements Runnable {
1054	<	public void run() {
1055	<	try {
1056	<	Thread.sleep(MEDIUM_DELAY_MS);
1057	<	}
1058	<	catch (Exception e) {
1059	<	threadUnexpectedException(e);
1060	<	}
1053	>	public static class NoOpCallable implements Callable {
1054	>	public Object call() { return Boolean.TRUE; }
1055	>	}
1056	>
1057	>	public static final String TEST_STRING = "a test string";
1058	>
1059	>	public static class StringTask implements Callable<String> {
1060	>	public String call() { return TEST_STRING; }
1061	>	}
1062	>
1063	>	public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
1064	>	return new CheckedCallable<String>() {
1065	>	protected String realCall() {
1066	>	try {
1067	>	latch.await();
1068	>	} catch (InterruptedException quittingTime) {}
1069	>	return TEST_STRING;
1070	>	}};
1071	>	}
1072	>
1073	>	public Runnable awaiter(final CountDownLatch latch) {
1074	>	return new CheckedRunnable() {
1075	>	public void realRun() throws InterruptedException {
1076	>	await(latch);
1077	>	}};
1078	>	}
1079	>
1080	>	public void await(CountDownLatch latch) {
1081	>	try {
1082	>	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1083	>	} catch (Throwable t) {
1084	>	threadUnexpectedException(t);
1085		}
1086		}
1087
1088	<	class MediumInterruptedRunnable implements Runnable {
1089	<	public void run() {
1088	>	public void await(Semaphore semaphore) {
1089	>	try {
1090	>	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1091	>	} catch (Throwable t) {
1092	>	threadUnexpectedException(t);
1093	>	}
1094	>	}
1095	>
1096	>	//     /**
1097	>	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1098	>	//      */
1099	>	//     public void await(AtomicBoolean flag) {
1100	>	//         await(flag, LONG_DELAY_MS);
1101	>	//     }
1102	>
1103	>	//     /**
1104	>	//      * Spin-waits up to the specified timeout until flag becomes true.
1105	>	//      */
1106	>	//     public void await(AtomicBoolean flag, long timeoutMillis) {
1107	>	//         long startTime = System.nanoTime();
1108	>	//         while (!flag.get()) {
1109	>	//             if (millisElapsedSince(startTime) > timeoutMillis)
1110	>	//                 throw new AssertionFailedError("timed out");
1111	>	//             Thread.yield();
1112	>	//         }
1113	>	//     }
1114	>
1115	>	public static class NPETask implements Callable<String> {
1116	>	public String call() { throw new NullPointerException(); }
1117	>	}
1118	>
1119	>	public static class CallableOne implements Callable<Integer> {
1120	>	public Integer call() { return one; }
1121	>	}
1122	>
1123	>	public class ShortRunnable extends CheckedRunnable {
1124	>	protected void realRun() throws Throwable {
1125	>	delay(SHORT_DELAY_MS);
1126	>	}
1127	>	}
1128	>
1129	>	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1130	>	protected void realRun() throws InterruptedException {
1131	>	delay(SHORT_DELAY_MS);
1132	>	}
1133	>	}
1134	>
1135	>	public class SmallRunnable extends CheckedRunnable {
1136	>	protected void realRun() throws Throwable {
1137	>	delay(SMALL_DELAY_MS);
1138	>	}
1139	>	}
1140	>
1141	>	public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1142	>	protected void realRun() {
1143		try {
1144	<	Thread.sleep(MEDIUM_DELAY_MS);
1145	<	threadShouldThrow();
502	<	}
503	<	catch (InterruptedException success) {
504	<	}
1144	>	delay(SMALL_DELAY_MS);
1145	>	} catch (InterruptedException ok) {}
1146		}
1147		}
1148
1149	<	class MediumPossiblyInterruptedRunnable implements Runnable {
1150	<	public void run() {
1149	>	public class SmallCallable extends CheckedCallable {
1150	>	protected Object realCall() throws InterruptedException {
1151	>	delay(SMALL_DELAY_MS);
1152	>	return Boolean.TRUE;
1153	>	}
1154	>	}
1155	>
1156	>	public class MediumRunnable extends CheckedRunnable {
1157	>	protected void realRun() throws Throwable {
1158	>	delay(MEDIUM_DELAY_MS);
1159	>	}
1160	>	}
1161	>
1162	>	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1163	>	protected void realRun() throws InterruptedException {
1164	>	delay(MEDIUM_DELAY_MS);
1165	>	}
1166	>	}
1167	>
1168	>	public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1169	>	return new CheckedRunnable() {
1170	>	protected void realRun() {
1171	>	try {
1172	>	delay(timeoutMillis);
1173	>	} catch (InterruptedException ok) {}
1174	>	}};
1175	>	}
1176	>
1177	>	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1178	>	protected void realRun() {
1179		try {
1180	<	Thread.sleep(MEDIUM_DELAY_MS);
1181	<	}
513	<	catch (InterruptedException success) {
514	<	}
1180	>	delay(MEDIUM_DELAY_MS);
1181	>	} catch (InterruptedException ok) {}
1182		}
1183		}
1184
1185	<	class LongPossiblyInterruptedRunnable implements Runnable {
1186	<	public void run() {
1185	>	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1186	>	protected void realRun() {
1187		try {
1188	<	Thread.sleep(LONG_DELAY_MS);
1189	<	}
523	<	catch (InterruptedException success) {
524	<	}
1188	>	delay(LONG_DELAY_MS);
1189	>	} catch (InterruptedException ok) {}
1190		}
1191		}
1192
1193		/**
1194		* For use as ThreadFactory in constructors
1195		*/
1196	<	static class SimpleThreadFactory implements ThreadFactory {
1196	>	public static class SimpleThreadFactory implements ThreadFactory {
1197		public Thread newThread(Runnable r) {
1198		return new Thread(r);
1199		}
1200		}
1201
1202	<	static class TrackedShortRunnable implements Runnable {
1203	<	volatile boolean done = false;
1202	>	public interface TrackedRunnable extends Runnable {
1203	>	boolean isDone();
1204	>	}
1205	>
1206	>	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1207	>	return new TrackedRunnable() {
1208	>	private volatile boolean done = false;
1209	>	public boolean isDone() { return done; }
1210	>	public void run() {
1211	>	try {
1212	>	delay(timeoutMillis);
1213	>	done = true;
1214	>	} catch (InterruptedException ok) {}
1215	>	}
1216	>	};
1217	>	}
1218	>
1219	>	public static class TrackedShortRunnable implements Runnable {
1220	>	public volatile boolean done = false;
1221		public void run() {
1222		try {
1223	<	Thread.sleep(SMALL_DELAY_MS);
1223	>	delay(SHORT_DELAY_MS);
1224		done = true;
1225	<	} catch (Exception e) {
544	<	}
1225	>	} catch (InterruptedException ok) {}
1226		}
1227		}
1228
1229	<	static class TrackedMediumRunnable implements Runnable {
1230	<	volatile boolean done = false;
1229	>	public static class TrackedSmallRunnable implements Runnable {
1230	>	public volatile boolean done = false;
1231		public void run() {
1232		try {
1233	<	Thread.sleep(MEDIUM_DELAY_MS);
1233	>	delay(SMALL_DELAY_MS);
1234		done = true;
1235	<	} catch (Exception e) {
555	<	}
1235	>	} catch (InterruptedException ok) {}
1236		}
1237		}
1238
1239	<	static class TrackedLongRunnable implements Runnable {
1240	<	volatile boolean done = false;
1239	>	public static class TrackedMediumRunnable implements Runnable {
1240	>	public volatile boolean done = false;
1241		public void run() {
1242		try {
1243	<	Thread.sleep(LONG_DELAY_MS);
1243	>	delay(MEDIUM_DELAY_MS);
1244		done = true;
1245	<	} catch (Exception e) {
1246	<	}
1245	>	} catch (InterruptedException ok) {}
1246	>	}
1247	>	}
1248	>
1249	>	public static class TrackedLongRunnable implements Runnable {
1250	>	public volatile boolean done = false;
1251	>	public void run() {
1252	>	try {
1253	>	delay(LONG_DELAY_MS);
1254	>	done = true;
1255	>	} catch (InterruptedException ok) {}
1256		}
1257		}
1258
1259	<	static class TrackedNoOpRunnable implements Runnable {
1260	<	volatile boolean done = false;
1259	>	public static class TrackedNoOpRunnable implements Runnable {
1260	>	public volatile boolean done = false;
1261		public void run() {
1262		done = true;
1263		}
1264		}
1265
1266	<	static class TrackedCallable implements Callable {
1267	<	volatile boolean done = false;
1266	>	public static class TrackedCallable implements Callable {
1267	>	public volatile boolean done = false;
1268		public Object call() {
1269		try {
1270	<	Thread.sleep(SMALL_DELAY_MS);
1270	>	delay(SMALL_DELAY_MS);
1271		done = true;
1272	<	} catch (Exception e) {
584	<	}
1272	>	} catch (InterruptedException ok) {}
1273		return Boolean.TRUE;
1274		}
1275		}
1276
1277	+	/**
1278	+	* Analog of CheckedRunnable for RecursiveAction
1279	+	*/
1280	+	public abstract class CheckedRecursiveAction extends RecursiveAction {
1281	+	protected abstract void realCompute() throws Throwable;
1282	+
1283	+	@Override protected final void compute() {
1284	+	try {
1285	+	realCompute();
1286	+	} catch (Throwable t) {
1287	+	threadUnexpectedException(t);
1288	+	}
1289	+	}
1290	+	}
1291	+
1292	+	/**
1293	+	* Analog of CheckedCallable for RecursiveTask
1294	+	*/
1295	+	public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1296	+	protected abstract T realCompute() throws Throwable;
1297	+
1298	+	@Override protected final T compute() {
1299	+	try {
1300	+	return realCompute();
1301	+	} catch (Throwable t) {
1302	+	threadUnexpectedException(t);
1303	+	return null;
1304	+	}
1305	+	}
1306	+	}
1307
1308		/**
1309		* For use as RejectedExecutionHandler in constructors
1310		*/
1311	<	static class NoOpREHandler implements RejectedExecutionHandler {
1312	<	public void rejectedExecution(Runnable r, ThreadPoolExecutor executor){}
1311	>	public static class NoOpREHandler implements RejectedExecutionHandler {
1312	>	public void rejectedExecution(Runnable r,
1313	>	ThreadPoolExecutor executor) {}
1314		}
1315
1316	+	/**
1317	+	* A CyclicBarrier that uses timed await and fails with
1318	+	* AssertionFailedErrors instead of throwing checked exceptions.
1319	+	*/
1320	+	public class CheckedBarrier extends CyclicBarrier {
1321	+	public CheckedBarrier(int parties) { super(parties); }
1322	+
1323	+	public int await() {
1324	+	try {
1325	+	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1326	+	} catch (TimeoutException e) {
1327	+	throw new AssertionFailedError("timed out");
1328	+	} catch (Exception e) {
1329	+	AssertionFailedError afe =
1330	+	new AssertionFailedError("Unexpected exception: " + e);
1331	+	afe.initCause(e);
1332	+	throw afe;
1333	+	}
1334	+	}
1335	+	}
1336
1337	+	void checkEmpty(BlockingQueue q) {
1338	+	try {
1339	+	assertTrue(q.isEmpty());
1340	+	assertEquals(0, q.size());
1341	+	assertNull(q.peek());
1342	+	assertNull(q.poll());
1343	+	assertNull(q.poll(0, MILLISECONDS));
1344	+	assertEquals(q.toString(), "[]");
1345	+	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1346	+	assertFalse(q.iterator().hasNext());
1347	+	try {
1348	+	q.element();
1349	+	shouldThrow();
1350	+	} catch (NoSuchElementException success) {}
1351	+	try {
1352	+	q.iterator().next();
1353	+	shouldThrow();
1354	+	} catch (NoSuchElementException success) {}
1355	+	try {
1356	+	q.remove();
1357	+	shouldThrow();
1358	+	} catch (NoSuchElementException success) {}
1359	+	} catch (InterruptedException ie) {
1360	+	threadUnexpectedException(ie);
1361	+	}
1362	+	}
1363	+
1364	+	void assertSerialEquals(Object x, Object y) {
1365	+	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1366	+	}
1367	+
1368	+	void assertNotSerialEquals(Object x, Object y) {
1369	+	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1370	+	}
1371	+
1372	+	byte[] serialBytes(Object o) {
1373	+	try {
1374	+	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1375	+	ObjectOutputStream oos = new ObjectOutputStream(bos);
1376	+	oos.writeObject(o);
1377	+	oos.flush();
1378	+	oos.close();
1379	+	return bos.toByteArray();
1380	+	} catch (Throwable t) {
1381	+	threadUnexpectedException(t);
1382	+	return new byte[0];
1383	+	}
1384	+	}
1385	+
1386	+	@SuppressWarnings("unchecked")
1387	+	<T> T serialClone(T o) {
1388	+	try {
1389	+	ObjectInputStream ois = new ObjectInputStream
1390	+	(new ByteArrayInputStream(serialBytes(o)));
1391	+	T clone = (T) ois.readObject();
1392	+	assertSame(o.getClass(), clone.getClass());
1393	+	return clone;
1394	+	} catch (Throwable t) {
1395	+	threadUnexpectedException(t);
1396	+	return null;
1397	+	}
1398	+	}
1399	+
1400	+	public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1401	+	Runnable... throwingActions) {
1402	+	for (Runnable throwingAction : throwingActions) {
1403	+	boolean threw = false;
1404	+	try { throwingAction.run(); }
1405	+	catch (Throwable t) {
1406	+	threw = true;
1407	+	if (!expectedExceptionClass.isInstance(t)) {
1408	+	AssertionFailedError afe =
1409	+	new AssertionFailedError
1410	+	("Expected " + expectedExceptionClass.getName() +
1411	+	", got " + t.getClass().getName());
1412	+	afe.initCause(t);
1413	+	threadUnexpectedException(afe);
1414	+	}
1415	+	}
1416	+	if (!threw)
1417	+	shouldThrow(expectedExceptionClass.getName());
1418	+	}
1419	+	}
1420		}

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