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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.1 by dl, Sun Sep 14 20:42:40 2003 UTC vs.
Revision 1.104 by dl, Thu Mar 21 00:26:43 2013 UTC

#	Line 1 | Line 1
1		/*
2	<	* Written by members of JCP JSR-166 Expert Group and released to the
3	<	* public domain. Use, modify, and redistribute this code in any way
4	<	* without acknowledgement. Other contributors include Andrew Wright,
5	<	* Jeffrey Hayes, Pat Fischer, Mike Judd.
2	>	* Written by Doug Lea with assistance from members of JCP JSR-166
3	>	* Expert Group and released to the public domain, as explained at
4	>	* http://creativecommons.org/publicdomain/zero/1.0/
5	>	* Other contributors include Andrew Wright, Jeffrey Hayes,
6	>	* Pat Fisher, Mike Judd.
7		*/
8
9		import junit.framework.*;
10	<	import java.util.*;
10	>	import java.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	<
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.security.CodeSource;
30	>	import java.security.Permission;
31	>	import java.security.PermissionCollection;
32	>	import java.security.Permissions;
33	>	import java.security.Policy;
34	>	import java.security.ProtectionDomain;
35	>	import java.security.SecurityPermission;
36
37		/**
38	<	* Base class for JSR166 Junit TCK tests.  Defines some constants and
39	<	* utility methods, as well as a simple framework for helping to make
40	<	* sure that assertions failing in generated threads cause the
41	<	* associated test that generated them to itself fail (which JUnit doe
42	<	* not otherwise arrange).  The rules for creating such tests are:
38	>	* Base class for JSR166 Junit TCK tests.  Defines some constants,
39	>	* utility methods and classes, as well as a simple framework for
40	>	* helping to make sure that assertions failing in generated threads
41	>	* cause the associated test that generated them to itself fail (which
42	>	* JUnit does not otherwise arrange).  The rules for creating such
43	>	* tests are:
44		*
45		* <ol>
46		*
47		* <li> All assertions in code running in generated threads must use
48	<	* the forms {@link threadFail} , {@link threadAssertTrue} {@link
49	<	* threadAssertEquals}, or {@link threadAssertNull}, (not
50	<	* <tt>fail</tt>, <tt>assertTrue</tt>, etc.) It is OK (but not
48	>	* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link
49	>	* #threadAssertEquals}, or {@link #threadAssertNull}, (not
50	>	* {@code fail}, {@code assertTrue}, etc.) It is OK (but not
51		* particularly recommended) for other code to use these forms too.
52		* Only the most typically used JUnit assertion methods are defined
53		* this way, but enough to live with.</li>
54		*
55	<	* <li> If you override {@link setUp} or {@link tearDown}, make sure
56	<	* to invoke <tt>super.setUp</tt> and <tt>super.tearDown</tt> within
55	>	* <li> If you override {@link #setUp} or {@link #tearDown}, make sure
56	>	* to invoke {@code super.setUp} and {@code super.tearDown} within
57		* them. These methods are used to clear and check for thread
58		* assertion failures.</li>
59		*
60	<	* <li>All delays and timeouts must use one of the constants {@link
61	<	* SHORT_DELAY_MS}, {@link SMALL_DELAY_MS}, {@link MEDIUM_DELAY_MS},
62	<	* {@link LONG_DELAY_MS}. The idea here is that a SHORT is always
63	<	* discriminatable from zero time, and always allows enough time for
64	<	* the small amounts of computation (creating a thread, calling a few
60	>	* <li>All delays and timeouts must use one of the constants {@code
61	>	* SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS},
62	>	* {@code LONG_DELAY_MS}. The idea here is that a SHORT is always
63	>	* discriminable from zero time, and always allows enough time for the
64	>	* small amounts of computation (creating a thread, calling a few
65		* methods, etc) needed to reach a timeout point. Similarly, a SMALL
66		* is always discriminable as larger than SHORT and smaller than
67		* MEDIUM.  And so on. These constants are set to conservative values,
68	<	* (100, 500, 1000, 5000 MS) but even so, if there is ever any doubt,
69	<	* they can all be increased in one spot to rerun tests on slower
46	<	* platforms</li>
68	>	* but even so, if there is ever any doubt, they can all be increased
69	>	* in one spot to rerun tests on slower platforms.</li>
70		*
71		* <li> All threads generated must be joined inside each test case
72	<	* method (or <tt>fail</tt> to do so) before returning from the
73	<	* method. The {@link joinPool} method can be used to do this when
72	>	* method (or {@code fail} to do so) before returning from the
73	>	* method. The {@code joinPool} method can be used to do this when
74		* using Executors.</li>
75		*
76		* </ol>
77	+	*
78	+	* <p><b>Other notes</b>
79	+	* <ul>
80	+	*
81	+	* <li> Usually, there is one testcase method per JSR166 method
82	+	* covering "normal" operation, and then as many exception-testing
83	+	* methods as there are exceptions the method can throw. Sometimes
84	+	* there are multiple tests per JSR166 method when the different
85	+	* "normal" behaviors differ significantly. And sometimes testcases
86	+	* cover multiple methods when they cannot be tested in
87	+	* isolation.</li>
88	+	*
89	+	* <li> The documentation style for testcases is to provide as javadoc
90	+	* a simple sentence or two describing the property that the testcase
91	+	* method purports to test. The javadocs do not say anything about how
92	+	* the property is tested. To find out, read the code.</li>
93	+	*
94	+	* <li> These tests are "conformance tests", and do not attempt to
95	+	* test throughput, latency, scalability or other performance factors
96	+	* (see the separate "jtreg" tests for a set intended to check these
97	+	* for the most central aspects of functionality.) So, most tests use
98	+	* the smallest sensible numbers of threads, collection sizes, etc
99	+	* needed to check basic conformance.</li>
100	+	*
101	+	* <li>The test classes currently do not declare inclusion in
102	+	* any particular package to simplify things for people integrating
103	+	* them in TCK test suites.</li>
104	+	*
105	+	* <li> As a convenience, the {@code main} of this class (JSR166TestCase)
106	+	* runs all JSR166 unit tests.</li>
107	+	*
108	+	* </ul>
109		*/
110		public class JSR166TestCase extends TestCase {
111	+	private static final boolean useSecurityManager =
112	+	Boolean.getBoolean("jsr166.useSecurityManager");
113	+
114	+	protected static final boolean expensiveTests =
115	+	Boolean.getBoolean("jsr166.expensiveTests");
116
117		/**
118	<	* Flag set true if any threadAssert methods fail
118	>	* If true, report on stdout all "slow" tests, that is, ones that
119	>	* take more than profileThreshold milliseconds to execute.
120		*/
121	<	protected volatile boolean threadFailed;
121	>	private static final boolean profileTests =
122	>	Boolean.getBoolean("jsr166.profileTests");
123
124		/**
125	<	* Initialize test to indicat that no thread assertions have failed
125	>	* The number of milliseconds that tests are permitted for
126	>	* execution without being reported, when profileTests is set.
127		*/
128	<	public void setUp() {
129	<	threadFailed = false;
128	>	private static final long profileThreshold =
129	>	Long.getLong("jsr166.profileThreshold", 100);
130	>
131	>	protected void runTest() throws Throwable {
132	>	if (profileTests)
133	>	runTestProfiled();
134	>	else
135	>	super.runTest();
136	>	}
137	>
138	>	protected void runTestProfiled() throws Throwable {
139	>	long t0 = System.nanoTime();
140	>	try {
141	>	super.runTest();
142	>	} finally {
143	>	long elapsedMillis =
144	>	(System.nanoTime() - t0) / (1000L * 1000L);
145	>	if (elapsedMillis >= profileThreshold)
146	>	System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
147	>	}
148		}
149
150		/**
151	<	* Trigger test case failure if any thread assertions have failed
151	>	* Runs all JSR166 unit tests using junit.textui.TestRunner.
152	>	* Optional command line arg provides the number of iterations to
153	>	* repeat running the tests.
154		*/
155	<	public void tearDown() {
156	<	assertFalse(threadFailed);
155	>	public static void main(String[] args) {
156	>	if (useSecurityManager) {
157	>	System.err.println("Setting a permissive security manager");
158	>	Policy.setPolicy(permissivePolicy());
159	>	System.setSecurityManager(new SecurityManager());
160	>	}
161	>	int iters = (args.length == 0) ? 1 : Integer.parseInt(args[0]);
162	>
163	>	Test s = suite();
164	>	for (int i = 0; i < iters; ++i) {
165	>	junit.textui.TestRunner.run(s);
166	>	System.gc();
167	>	System.runFinalization();
168	>	}
169	>	System.exit(0);
170	>	}
171	>
172	>	public static TestSuite newTestSuite(Object... suiteOrClasses) {
173	>	TestSuite suite = new TestSuite();
174	>	for (Object suiteOrClass : suiteOrClasses) {
175	>	if (suiteOrClass instanceof TestSuite)
176	>	suite.addTest((TestSuite) suiteOrClass);
177	>	else if (suiteOrClass instanceof Class)
178	>	suite.addTest(new TestSuite((Class<?>) suiteOrClass));
179	>	else
180	>	throw new ClassCastException("not a test suite or class");
181	>	}
182	>	return suite;
183	>	}
184	>
185	>	public static void addNamedTestClasses(TestSuite suite,
186	>	String... testClassNames) {
187	>	for (String testClassName : testClassNames) {
188	>	try {
189	>	Class<?> testClass = Class.forName(testClassName);
190	>	Method m = testClass.getDeclaredMethod("suite",
191	>	new Class<?>[0]);
192	>	suite.addTest(newTestSuite((Test)m.invoke(null)));
193	>	} catch (Exception e) {
194	>	throw new Error("Missing test class", e);
195	>	}
196	>	}
197		}
198
199	+	public static final double JAVA_CLASS_VERSION;
200	+	static {
201	+	try {
202	+	JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
203	+	new java.security.PrivilegedAction<Double>() {
204	+	public Double run() {
205	+	return Double.valueOf(System.getProperty("java.class.version"));}});
206	+	} catch (Throwable t) {
207	+	throw new Error(t);
208	+	}
209	+	}
210	+
211	+	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
212	+	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
213	+	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
214	+
215	+	/**
216	+	* Collects all JSR166 unit tests as one suite.
217	+	*/
218	+	public static Test suite() {
219	+	// Java7+ test classes
220	+	TestSuite suite = newTestSuite(
221	+	ForkJoinPoolTest.suite(),
222	+	ForkJoinTaskTest.suite(),
223	+	RecursiveActionTest.suite(),
224	+	RecursiveTaskTest.suite(),
225	+	LinkedTransferQueueTest.suite(),
226	+	PhaserTest.suite(),
227	+	ThreadLocalRandomTest.suite(),
228	+	AbstractExecutorServiceTest.suite(),
229	+	AbstractQueueTest.suite(),
230	+	AbstractQueuedSynchronizerTest.suite(),
231	+	AbstractQueuedLongSynchronizerTest.suite(),
232	+	ArrayBlockingQueueTest.suite(),
233	+	ArrayDequeTest.suite(),
234	+	AtomicBooleanTest.suite(),
235	+	AtomicIntegerArrayTest.suite(),
236	+	AtomicIntegerFieldUpdaterTest.suite(),
237	+	AtomicIntegerTest.suite(),
238	+	AtomicLongArrayTest.suite(),
239	+	AtomicLongFieldUpdaterTest.suite(),
240	+	AtomicLongTest.suite(),
241	+	AtomicMarkableReferenceTest.suite(),
242	+	AtomicReferenceArrayTest.suite(),
243	+	AtomicReferenceFieldUpdaterTest.suite(),
244	+	AtomicReferenceTest.suite(),
245	+	AtomicStampedReferenceTest.suite(),
246	+	ConcurrentHashMapTest.suite(),
247	+	ConcurrentLinkedDequeTest.suite(),
248	+	ConcurrentLinkedQueueTest.suite(),
249	+	ConcurrentSkipListMapTest.suite(),
250	+	ConcurrentSkipListSubMapTest.suite(),
251	+	ConcurrentSkipListSetTest.suite(),
252	+	ConcurrentSkipListSubSetTest.suite(),
253	+	CopyOnWriteArrayListTest.suite(),
254	+	CopyOnWriteArraySetTest.suite(),
255	+	CountDownLatchTest.suite(),
256	+	CyclicBarrierTest.suite(),
257	+	DelayQueueTest.suite(),
258	+	EntryTest.suite(),
259	+	ExchangerTest.suite(),
260	+	ExecutorsTest.suite(),
261	+	ExecutorCompletionServiceTest.suite(),
262	+	FutureTaskTest.suite(),
263	+	LinkedBlockingDequeTest.suite(),
264	+	LinkedBlockingQueueTest.suite(),
265	+	LinkedListTest.suite(),
266	+	LockSupportTest.suite(),
267	+	PriorityBlockingQueueTest.suite(),
268	+	PriorityQueueTest.suite(),
269	+	ReentrantLockTest.suite(),
270	+	ReentrantReadWriteLockTest.suite(),
271	+	ScheduledExecutorTest.suite(),
272	+	ScheduledExecutorSubclassTest.suite(),
273	+	SemaphoreTest.suite(),
274	+	SynchronousQueueTest.suite(),
275	+	SystemTest.suite(),
276	+	ThreadLocalTest.suite(),
277	+	ThreadPoolExecutorTest.suite(),
278	+	ThreadPoolExecutorSubclassTest.suite(),
279	+	ThreadTest.suite(),
280	+	TimeUnitTest.suite(),
281	+	TreeMapTest.suite(),
282	+	TreeSetTest.suite(),
283	+	TreeSubMapTest.suite(),
284	+	TreeSubSetTest.suite());
285	+
286	+	// Java8+ test classes
287	+	if (atLeastJava8()) {
288	+	String[] java8TestClassNames = {
289	+	"CompletableFutureTest",
290	+	"CountedCompleterTest",
291	+	"DoubleAccumulatorTest",
292	+	"DoubleAdderTest",
293	+	"ForkJoinPool8Test",
294	+	"LongAccumulatorTest",
295	+	"LongAdderTest",
296	+	"StampedLockTest",
297	+	};
298	+	addNamedTestClasses(suite, java8TestClassNames);
299	+	}
300	+
301	+	return suite;
302	+	}
303	+
304	+
305	+	public static long SHORT_DELAY_MS;
306	+	public static long SMALL_DELAY_MS;
307	+	public static long MEDIUM_DELAY_MS;
308	+	public static long LONG_DELAY_MS;
309	+
310	+
311	+	/**
312	+	* Returns the shortest timed delay. This could
313	+	* be reimplemented to use for example a Property.
314	+	*/
315	+	protected long getShortDelay() {
316	+	return 50;
317	+	}
318	+
319	+	/**
320	+	* Sets delays as multiples of SHORT_DELAY.
321	+	*/
322	+	protected void setDelays() {
323	+	SHORT_DELAY_MS = getShortDelay();
324	+	SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
325	+	MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
326	+	LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
327	+	}
328	+
329	+	/**
330	+	* Returns a timeout in milliseconds to be used in tests that
331	+	* verify that operations block or time out.
332	+	*/
333	+	long timeoutMillis() {
334	+	return SHORT_DELAY_MS / 4;
335	+	}
336	+
337	+	/**
338	+	* Returns a new Date instance representing a time delayMillis
339	+	* milliseconds in the future.
340	+	*/
341	+	Date delayedDate(long delayMillis) {
342	+	return new Date(System.currentTimeMillis() + delayMillis);
343	+	}
344	+
345	+	/**
346	+	* The first exception encountered if any threadAssertXXX method fails.
347	+	*/
348	+	private final AtomicReference<Throwable> threadFailure
349	+	= new AtomicReference<Throwable>(null);
350	+
351	+	/**
352	+	* Records an exception so that it can be rethrown later in the test
353	+	* harness thread, triggering a test case failure.  Only the first
354	+	* failure is recorded; subsequent calls to this method from within
355	+	* the same test have no effect.
356	+	*/
357	+	public void threadRecordFailure(Throwable t) {
358	+	threadFailure.compareAndSet(null, t);
359	+	}
360	+
361	+	public void setUp() {
362	+	setDelays();
363	+	}
364	+
365	+	/**
366	+	* Extra checks that get done for all test cases.
367	+	*
368	+	* Triggers test case failure if any thread assertions have failed,
369	+	* by rethrowing, in the test harness thread, any exception recorded
370	+	* earlier by threadRecordFailure.
371	+	*
372	+	* Triggers test case failure if interrupt status is set in the main thread.
373	+	*/
374	+	public void tearDown() throws Exception {
375	+	Throwable t = threadFailure.getAndSet(null);
376	+	if (t != null) {
377	+	if (t instanceof Error)
378	+	throw (Error) t;
379	+	else if (t instanceof RuntimeException)
380	+	throw (RuntimeException) t;
381	+	else if (t instanceof Exception)
382	+	throw (Exception) t;
383	+	else {
384	+	AssertionFailedError afe =
385	+	new AssertionFailedError(t.toString());
386	+	afe.initCause(t);
387	+	throw afe;
388	+	}
389	+	}
390	+
391	+	if (Thread.interrupted())
392	+	throw new AssertionFailedError("interrupt status set in main thread");
393	+
394	+	checkForkJoinPoolThreadLeaks();
395	+	}
396	+
397	+	/**
398	+	* Find missing try { ... } finally { joinPool(e); }
399	+	*/
400	+	void checkForkJoinPoolThreadLeaks() throws InterruptedException {
401	+	Thread[] survivors = new Thread[5];
402	+	int count = Thread.enumerate(survivors);
403	+	for (int i = 0; i < count; i++) {
404	+	Thread thread = survivors[i];
405	+	String name = thread.getName();
406	+	if (name.startsWith("ForkJoinPool-")) {
407	+	// give thread some time to terminate
408	+	thread.join(LONG_DELAY_MS);
409	+	if (!thread.isAlive()) continue;
410	+	thread.stop();
411	+	throw new AssertionFailedError
412	+	(String.format("Found leaked ForkJoinPool thread test=%s thread=%s%n",
413	+	toString(), name));
414	+	}
415	+	}
416	+	}
417	+
418	+	/**
419	+	* Just like fail(reason), but additionally recording (using
420	+	* threadRecordFailure) any AssertionFailedError thrown, so that
421	+	* the current testcase will fail.
422	+	*/
423		public void threadFail(String reason) {
424	<	threadFailed = true;
425	<	fail(reason);
424	>	try {
425	>	fail(reason);
426	>	} catch (AssertionFailedError t) {
427	>	threadRecordFailure(t);
428	>	fail(reason);
429	>	}
430		}
431
432	+	/**
433	+	* Just like assertTrue(b), but additionally recording (using
434	+	* threadRecordFailure) any AssertionFailedError thrown, so that
435	+	* the current testcase will fail.
436	+	*/
437		public void threadAssertTrue(boolean b) {
438	<	if (!b) {
83	<	threadFailed = true;
438	>	try {
439		assertTrue(b);
440	+	} catch (AssertionFailedError t) {
441	+	threadRecordFailure(t);
442	+	throw t;
443		}
444		}
445	+
446	+	/**
447	+	* Just like assertFalse(b), but additionally recording (using
448	+	* threadRecordFailure) any AssertionFailedError thrown, so that
449	+	* the current testcase will fail.
450	+	*/
451		public void threadAssertFalse(boolean b) {
452	<	if (b) {
89	<	threadFailed = true;
452	>	try {
453		assertFalse(b);
454	+	} catch (AssertionFailedError t) {
455	+	threadRecordFailure(t);
456	+	throw t;
457		}
458		}
459	+
460	+	/**
461	+	* Just like assertNull(x), but additionally recording (using
462	+	* threadRecordFailure) any AssertionFailedError thrown, so that
463	+	* the current testcase will fail.
464	+	*/
465		public void threadAssertNull(Object x) {
466	<	if (x != null) {
95	<	threadFailed = true;
466	>	try {
467		assertNull(x);
468	+	} catch (AssertionFailedError t) {
469	+	threadRecordFailure(t);
470	+	throw t;
471		}
472		}
473	+
474	+	/**
475	+	* Just like assertEquals(x, y), but additionally recording (using
476	+	* threadRecordFailure) any AssertionFailedError thrown, so that
477	+	* the current testcase will fail.
478	+	*/
479		public void threadAssertEquals(long x, long y) {
480	<	if (x != y) {
101	<	threadFailed = true;
480	>	try {
481		assertEquals(x, y);
482	+	} catch (AssertionFailedError t) {
483	+	threadRecordFailure(t);
484	+	throw t;
485		}
486		}
487	+
488	+	/**
489	+	* Just like assertEquals(x, y), but additionally recording (using
490	+	* threadRecordFailure) any AssertionFailedError thrown, so that
491	+	* the current testcase will fail.
492	+	*/
493		public void threadAssertEquals(Object x, Object y) {
494	<	if (x != y && (x == null || !x.equals(y))) {
107	<	threadFailed = true;
494	>	try {
495		assertEquals(x, y);
496	+	} catch (AssertionFailedError t) {
497	+	threadRecordFailure(t);
498	+	throw t;
499	+	} catch (Throwable t) {
500	+	threadUnexpectedException(t);
501	+	}
502	+	}
503	+
504	+	/**
505	+	* Just like assertSame(x, y), but additionally recording (using
506	+	* threadRecordFailure) any AssertionFailedError thrown, so that
507	+	* the current testcase will fail.
508	+	*/
509	+	public void threadAssertSame(Object x, Object y) {
510	+	try {
511	+	assertSame(x, y);
512	+	} catch (AssertionFailedError t) {
513	+	threadRecordFailure(t);
514	+	throw t;
515	+	}
516	+	}
517	+
518	+	/**
519	+	* Calls threadFail with message "should throw exception".
520	+	*/
521	+	public void threadShouldThrow() {
522	+	threadFail("should throw exception");
523	+	}
524	+
525	+	/**
526	+	* Calls threadFail with message "should throw" + exceptionName.
527	+	*/
528	+	public void threadShouldThrow(String exceptionName) {
529	+	threadFail("should throw " + exceptionName);
530	+	}
531	+
532	+	/**
533	+	* Records the given exception using {@link #threadRecordFailure},
534	+	* then rethrows the exception, wrapping it in an
535	+	* AssertionFailedError if necessary.
536	+	*/
537	+	public void threadUnexpectedException(Throwable t) {
538	+	threadRecordFailure(t);
539	+	t.printStackTrace();
540	+	if (t instanceof RuntimeException)
541	+	throw (RuntimeException) t;
542	+	else if (t instanceof Error)
543	+	throw (Error) t;
544	+	else {
545	+	AssertionFailedError afe =
546	+	new AssertionFailedError("unexpected exception: " + t);
547	+	afe.initCause(t);
548	+	throw afe;
549	+	}
550	+	}
551	+
552	+	/**
553	+	* Delays, via Thread.sleep, for the given millisecond delay, but
554	+	* if the sleep is shorter than specified, may re-sleep or yield
555	+	* until time elapses.
556	+	*/
557	+	static void delay(long millis) throws InterruptedException {
558	+	long startTime = System.nanoTime();
559	+	long ns = millis * 1000 * 1000;
560	+	for (;;) {
561	+	if (millis > 0L)
562	+	Thread.sleep(millis);
563	+	else // too short to sleep
564	+	Thread.yield();
565	+	long d = ns - (System.nanoTime() - startTime);
566	+	if (d > 0L)
567	+	millis = d / (1000 * 1000);
568	+	else
569	+	break;
570		}
571		}
572
573		/**
574	<	* Wait out termination of a thread pool or fail doing so
574	>	* Waits out termination of a thread pool or fails doing so.
575		*/
576	<	public void joinPool(ExecutorService exec) {
576	>	void joinPool(ExecutorService exec) {
577		try {
578		exec.shutdown();
579	<	assertTrue(exec.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
580	<	} catch(InterruptedException ie) {
581	<	fail("unexpected exception");
579	>	assertTrue("ExecutorService did not terminate in a timely manner",
580	>	exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS));
581	>	} catch (SecurityException ok) {
582	>	// Allowed in case test doesn't have privs
583	>	} catch (InterruptedException ie) {
584	>	fail("Unexpected InterruptedException");
585	>	}
586	>	}
587	>
588	>	/**
589	>	* A debugging tool to print all stack traces, as jstack does.
590	>	*/
591	>	static void printAllStackTraces() {
592	>	for (ThreadInfo info :
593	>	ManagementFactory.getThreadMXBean()
594	>	.dumpAllThreads(true, true))
595	>	System.err.print(info);
596	>	}
597	>
598	>	/**
599	>	* Checks that thread does not terminate within the default
600	>	* millisecond delay of {@code timeoutMillis()}.
601	>	*/
602	>	void assertThreadStaysAlive(Thread thread) {
603	>	assertThreadStaysAlive(thread, timeoutMillis());
604	>	}
605	>
606	>	/**
607	>	* Checks that thread does not terminate within the given millisecond delay.
608	>	*/
609	>	void assertThreadStaysAlive(Thread thread, long millis) {
610	>	try {
611	>	// No need to optimize the failing case via Thread.join.
612	>	delay(millis);
613	>	assertTrue(thread.isAlive());
614	>	} catch (InterruptedException ie) {
615	>	fail("Unexpected InterruptedException");
616	>	}
617	>	}
618	>
619	>	/**
620	>	* Checks that the threads do not terminate within the default
621	>	* millisecond delay of {@code timeoutMillis()}.
622	>	*/
623	>	void assertThreadsStayAlive(Thread... threads) {
624	>	assertThreadsStayAlive(timeoutMillis(), threads);
625	>	}
626	>
627	>	/**
628	>	* Checks that the threads do not terminate within the given millisecond delay.
629	>	*/
630	>	void assertThreadsStayAlive(long millis, Thread... threads) {
631	>	try {
632	>	// No need to optimize the failing case via Thread.join.
633	>	delay(millis);
634	>	for (Thread thread : threads)
635	>	assertTrue(thread.isAlive());
636	>	} catch (InterruptedException ie) {
637	>	fail("Unexpected InterruptedException");
638		}
639		}
640
641	<	public static final long SHORT_DELAY_MS =   100;
642	<	public static final long SMALL_DELAY_MS =   500;
643	<	public static final long MEDIUM_DELAY_MS = 1000;
644	<	public static final long LONG_DELAY_MS =   5000;
641	>	/**
642	>	* Checks that future.get times out, with the default timeout of
643	>	* {@code timeoutMillis()}.
644	>	*/
645	>	void assertFutureTimesOut(Future future) {
646	>	assertFutureTimesOut(future, timeoutMillis());
647	>	}
648	>
649	>	/**
650	>	* Checks that future.get times out, with the given millisecond timeout.
651	>	*/
652	>	void assertFutureTimesOut(Future future, long timeoutMillis) {
653	>	long startTime = System.nanoTime();
654	>	try {
655	>	future.get(timeoutMillis, MILLISECONDS);
656	>	shouldThrow();
657	>	} catch (TimeoutException success) {
658	>	} catch (Exception e) {
659	>	threadUnexpectedException(e);
660	>	} finally { future.cancel(true); }
661	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
662	>	}
663	>
664	>	/**
665	>	* Fails with message "should throw exception".
666	>	*/
667	>	public void shouldThrow() {
668	>	fail("Should throw exception");
669	>	}
670
671	+	/**
672	+	* Fails with message "should throw " + exceptionName.
673	+	*/
674	+	public void shouldThrow(String exceptionName) {
675	+	fail("Should throw " + exceptionName);
676	+	}
677
678		/**
679		* The number of elements to place in collections, arrays, etc.
#	Line 134 | Line 682 | public class JSR166TestCase extends Test
682
683		// Some convenient Integer constants
684
685	<	public static final Integer zero = new Integer(0);
686	<	public static final Integer one = new Integer(1);
687	<	public static final Integer two = new Integer(2);
688	<	public static final Integer three  = new Integer(3);
685	>	public static final Integer zero  = new Integer(0);
686	>	public static final Integer one   = new Integer(1);
687	>	public static final Integer two   = new Integer(2);
688	>	public static final Integer three = new Integer(3);
689		public static final Integer four  = new Integer(4);
690		public static final Integer five  = new Integer(5);
691	<	public static final Integer six = new Integer(6);
691	>	public static final Integer six   = new Integer(6);
692		public static final Integer seven = new Integer(7);
693		public static final Integer eight = new Integer(8);
694	<	public static final Integer nine = new Integer(9);
694	>	public static final Integer nine  = new Integer(9);
695		public static final Integer m1  = new Integer(-1);
696		public static final Integer m2  = new Integer(-2);
697		public static final Integer m3  = new Integer(-3);
698	<	public static final Integer m4 = new Integer(-4);
699	<	public static final Integer m5 = new Integer(-5);
698	>	public static final Integer m4  = new Integer(-4);
699	>	public static final Integer m5  = new Integer(-5);
700	>	public static final Integer m6  = new Integer(-6);
701		public static final Integer m10 = new Integer(-10);
702
703
704	<	// Some convenient Runnable classes
704	>	/**
705	>	* Runs Runnable r with a security policy that permits precisely
706	>	* the specified permissions.  If there is no current security
707	>	* manager, the runnable is run twice, both with and without a
708	>	* security manager.  We require that any security manager permit
709	>	* getPolicy/setPolicy.
710	>	*/
711	>	public void runWithPermissions(Runnable r, Permission... permissions) {
712	>	SecurityManager sm = System.getSecurityManager();
713	>	if (sm == null) {
714	>	r.run();
715	>	}
716	>	runWithSecurityManagerWithPermissions(r, permissions);
717	>	}
718
719	<	public static class NoOpRunnable implements Runnable {
720	<	public void run() {}
719	>	/**
720	>	* Runs Runnable r with a security policy that permits precisely
721	>	* the specified permissions.  If there is no current security
722	>	* manager, a temporary one is set for the duration of the
723	>	* Runnable.  We require that any security manager permit
724	>	* getPolicy/setPolicy.
725	>	*/
726	>	public void runWithSecurityManagerWithPermissions(Runnable r,
727	>	Permission... permissions) {
728	>	SecurityManager sm = System.getSecurityManager();
729	>	if (sm == null) {
730	>	Policy savedPolicy = Policy.getPolicy();
731	>	try {
732	>	Policy.setPolicy(permissivePolicy());
733	>	System.setSecurityManager(new SecurityManager());
734	>	runWithSecurityManagerWithPermissions(r, permissions);
735	>	} finally {
736	>	System.setSecurityManager(null);
737	>	Policy.setPolicy(savedPolicy);
738	>	}
739	>	} else {
740	>	Policy savedPolicy = Policy.getPolicy();
741	>	AdjustablePolicy policy = new AdjustablePolicy(permissions);
742	>	Policy.setPolicy(policy);
743	>
744	>	try {
745	>	r.run();
746	>	} finally {
747	>	policy.addPermission(new SecurityPermission("setPolicy"));
748	>	Policy.setPolicy(savedPolicy);
749	>	}
750	>	}
751		}
752
753	<	public static class NoOpCallable implements Callable {
754	<	public Object call() { return Boolean.TRUE; }
753	>	/**
754	>	* Runs a runnable without any permissions.
755	>	*/
756	>	public void runWithoutPermissions(Runnable r) {
757	>	runWithPermissions(r);
758		}
759
760	<	public class ShortRunnable implements Runnable {
761	<	public void run() {
762	<	try {
763	<	Thread.sleep(SHORT_DELAY_MS);
760	>	/**
761	>	* A security policy where new permissions can be dynamically added
762	>	* or all cleared.
763	>	*/
764	>	public static class AdjustablePolicy extends java.security.Policy {
765	>	Permissions perms = new Permissions();
766	>	AdjustablePolicy(Permission... permissions) {
767	>	for (Permission permission : permissions)
768	>	perms.add(permission);
769	>	}
770	>	void addPermission(Permission perm) { perms.add(perm); }
771	>	void clearPermissions() { perms = new Permissions(); }
772	>	public PermissionCollection getPermissions(CodeSource cs) {
773	>	return perms;
774	>	}
775	>	public PermissionCollection getPermissions(ProtectionDomain pd) {
776	>	return perms;
777	>	}
778	>	public boolean implies(ProtectionDomain pd, Permission p) {
779	>	return perms.implies(p);
780	>	}
781	>	public void refresh() {}
782	>	public String toString() {
783	>	List<Permission> ps = new ArrayList<Permission>();
784	>	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
785	>	ps.add(e.nextElement());
786	>	return "AdjustablePolicy with permissions " + ps;
787	>	}
788	>	}
789	>
790	>	/**
791	>	* Returns a policy containing all the permissions we ever need.
792	>	*/
793	>	public static Policy permissivePolicy() {
794	>	return new AdjustablePolicy
795	>	// Permissions j.u.c. needs directly
796	>	(new RuntimePermission("modifyThread"),
797	>	new RuntimePermission("getClassLoader"),
798	>	new RuntimePermission("setContextClassLoader"),
799	>	// Permissions needed to change permissions!
800	>	new SecurityPermission("getPolicy"),
801	>	new SecurityPermission("setPolicy"),
802	>	new RuntimePermission("setSecurityManager"),
803	>	// Permissions needed by the junit test harness
804	>	new RuntimePermission("accessDeclaredMembers"),
805	>	new PropertyPermission("*", "read"),
806	>	new java.io.FilePermission("<<ALL FILES>>", "read"));
807	>	}
808	>
809	>	/**
810	>	* Sleeps until the given time has elapsed.
811	>	* Throws AssertionFailedError if interrupted.
812	>	*/
813	>	void sleep(long millis) {
814	>	try {
815	>	delay(millis);
816	>	} catch (InterruptedException ie) {
817	>	AssertionFailedError afe =
818	>	new AssertionFailedError("Unexpected InterruptedException");
819	>	afe.initCause(ie);
820	>	throw afe;
821	>	}
822	>	}
823	>
824	>	/**
825	>	* Spin-waits up to the specified number of milliseconds for the given
826	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
827	>	*/
828	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
829	>	long startTime = System.nanoTime();
830	>	for (;;) {
831	>	Thread.State s = thread.getState();
832	>	if (s == Thread.State.BLOCKED ||
833	>	s == Thread.State.WAITING ||
834	>	s == Thread.State.TIMED_WAITING)
835	>	return;
836	>	else if (s == Thread.State.TERMINATED)
837	>	fail("Unexpected thread termination");
838	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
839	>	threadAssertTrue(thread.isAlive());
840	>	return;
841		}
842	<	catch(Exception e) {
843	<	threadFail("unexpectedException");
842	>	Thread.yield();
843	>	}
844	>	}
845	>
846	>	/**
847	>	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
848	>	* state: BLOCKED, WAITING, or TIMED_WAITING.
849	>	*/
850	>	void waitForThreadToEnterWaitState(Thread thread) {
851	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
852	>	}
853	>
854	>	/**
855	>	* Returns the number of milliseconds since time given by
856	>	* startNanoTime, which must have been previously returned from a
857	>	* call to {@link System.nanoTime()}.
858	>	*/
859	>	long millisElapsedSince(long startNanoTime) {
860	>	return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
861	>	}
862	>
863	>	/**
864	>	* Returns a new started daemon Thread running the given runnable.
865	>	*/
866	>	Thread newStartedThread(Runnable runnable) {
867	>	Thread t = new Thread(runnable);
868	>	t.setDaemon(true);
869	>	t.start();
870	>	return t;
871	>	}
872	>
873	>	/**
874	>	* Waits for the specified time (in milliseconds) for the thread
875	>	* to terminate (using {@link Thread#join(long)}), else interrupts
876	>	* the thread (in the hope that it may terminate later) and fails.
877	>	*/
878	>	void awaitTermination(Thread t, long timeoutMillis) {
879	>	try {
880	>	t.join(timeoutMillis);
881	>	} catch (InterruptedException ie) {
882	>	threadUnexpectedException(ie);
883	>	} finally {
884	>	if (t.getState() != Thread.State.TERMINATED) {
885	>	t.interrupt();
886	>	fail("Test timed out");
887		}
888		}
889		}
890
891	<	public class ShortInterruptedRunnable implements Runnable {
892	<	public void run() {
891	>	/**
892	>	* Waits for LONG_DELAY_MS milliseconds for the thread to
893	>	* terminate (using {@link Thread#join(long)}), else interrupts
894	>	* the thread (in the hope that it may terminate later) and fails.
895	>	*/
896	>	void awaitTermination(Thread t) {
897	>	awaitTermination(t, LONG_DELAY_MS);
898	>	}
899	>
900	>	// Some convenient Runnable classes
901	>
902	>	public abstract class CheckedRunnable implements Runnable {
903	>	protected abstract void realRun() throws Throwable;
904	>
905	>	public final void run() {
906		try {
907	<	Thread.sleep(SHORT_DELAY_MS);
908	<	threadFail("should throw IE");
907	>	realRun();
908	>	} catch (Throwable t) {
909	>	threadUnexpectedException(t);
910		}
911	<	catch(InterruptedException success) {
911	>	}
912	>	}
913	>
914	>	public abstract class RunnableShouldThrow implements Runnable {
915	>	protected abstract void realRun() throws Throwable;
916	>
917	>	final Class<?> exceptionClass;
918	>
919	>	<T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) {
920	>	this.exceptionClass = exceptionClass;
921	>	}
922	>
923	>	public final void run() {
924	>	try {
925	>	realRun();
926	>	threadShouldThrow(exceptionClass.getSimpleName());
927	>	} catch (Throwable t) {
928	>	if (! exceptionClass.isInstance(t))
929	>	threadUnexpectedException(t);
930		}
931		}
932		}
933
934	<	public class SmallRunnable implements Runnable {
935	<	public void run() {
934	>	public abstract class ThreadShouldThrow extends Thread {
935	>	protected abstract void realRun() throws Throwable;
936	>
937	>	final Class<?> exceptionClass;
938	>
939	>	<T extends Throwable> ThreadShouldThrow(Class<T> exceptionClass) {
940	>	this.exceptionClass = exceptionClass;
941	>	}
942	>
943	>	public final void run() {
944		try {
945	<	Thread.sleep(SMALL_DELAY_MS);
945	>	realRun();
946	>	threadShouldThrow(exceptionClass.getSimpleName());
947	>	} catch (Throwable t) {
948	>	if (! exceptionClass.isInstance(t))
949	>	threadUnexpectedException(t);
950		}
951	<	catch(Exception e) {
952	<	threadFail("unexpectedException");
951	>	}
952	>	}
953	>
954	>	public abstract class CheckedInterruptedRunnable implements Runnable {
955	>	protected abstract void realRun() throws Throwable;
956	>
957	>	public final void run() {
958	>	try {
959	>	realRun();
960	>	threadShouldThrow("InterruptedException");
961	>	} catch (InterruptedException success) {
962	>	threadAssertFalse(Thread.interrupted());
963	>	} catch (Throwable t) {
964	>	threadUnexpectedException(t);
965		}
966		}
967		}
968
969	<	public class SmallCallable implements Callable {
970	<	public Object call() {
969	>	public abstract class CheckedCallable<T> implements Callable<T> {
970	>	protected abstract T realCall() throws Throwable;
971	>
972	>	public final T call() {
973		try {
974	<	Thread.sleep(SMALL_DELAY_MS);
974	>	return realCall();
975	>	} catch (Throwable t) {
976	>	threadUnexpectedException(t);
977	>	return null;
978		}
979	<	catch(Exception e) {
980	<	threadFail("unexpectedException");
979	>	}
980	>	}
981	>
982	>	public abstract class CheckedInterruptedCallable<T>
983	>	implements Callable<T> {
984	>	protected abstract T realCall() throws Throwable;
985	>
986	>	public final T call() {
987	>	try {
988	>	T result = realCall();
989	>	threadShouldThrow("InterruptedException");
990	>	return result;
991	>	} catch (InterruptedException success) {
992	>	threadAssertFalse(Thread.interrupted());
993	>	} catch (Throwable t) {
994	>	threadUnexpectedException(t);
995		}
996	+	return null;
997	+	}
998	+	}
999	+
1000	+	public static class NoOpRunnable implements Runnable {
1001	+	public void run() {}
1002	+	}
1003	+
1004	+	public static class NoOpCallable implements Callable {
1005	+	public Object call() { return Boolean.TRUE; }
1006	+	}
1007	+
1008	+	public static final String TEST_STRING = "a test string";
1009	+
1010	+	public static class StringTask implements Callable<String> {
1011	+	public String call() { return TEST_STRING; }
1012	+	}
1013	+
1014	+	public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
1015	+	return new CheckedCallable<String>() {
1016	+	protected String realCall() {
1017	+	try {
1018	+	latch.await();
1019	+	} catch (InterruptedException quittingTime) {}
1020	+	return TEST_STRING;
1021	+	}};
1022	+	}
1023	+
1024	+	public Runnable awaiter(final CountDownLatch latch) {
1025	+	return new CheckedRunnable() {
1026	+	public void realRun() throws InterruptedException {
1027	+	await(latch);
1028	+	}};
1029	+	}
1030	+
1031	+	public void await(CountDownLatch latch) {
1032	+	try {
1033	+	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1034	+	} catch (Throwable t) {
1035	+	threadUnexpectedException(t);
1036	+	}
1037	+	}
1038	+
1039	+	public void await(Semaphore semaphore) {
1040	+	try {
1041	+	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1042	+	} catch (Throwable t) {
1043	+	threadUnexpectedException(t);
1044	+	}
1045	+	}
1046	+
1047	+	//     /**
1048	+	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1049	+	//      */
1050	+	//     public void await(AtomicBoolean flag) {
1051	+	//         await(flag, LONG_DELAY_MS);
1052	+	//     }
1053	+
1054	+	//     /**
1055	+	//      * Spin-waits up to the specified timeout until flag becomes true.
1056	+	//      */
1057	+	//     public void await(AtomicBoolean flag, long timeoutMillis) {
1058	+	//         long startTime = System.nanoTime();
1059	+	//         while (!flag.get()) {
1060	+	//             if (millisElapsedSince(startTime) > timeoutMillis)
1061	+	//                 throw new AssertionFailedError("timed out");
1062	+	//             Thread.yield();
1063	+	//         }
1064	+	//     }
1065	+
1066	+	public static class NPETask implements Callable<String> {
1067	+	public String call() { throw new NullPointerException(); }
1068	+	}
1069	+
1070	+	public static class CallableOne implements Callable<Integer> {
1071	+	public Integer call() { return one; }
1072	+	}
1073	+
1074	+	public class ShortRunnable extends CheckedRunnable {
1075	+	protected void realRun() throws Throwable {
1076	+	delay(SHORT_DELAY_MS);
1077	+	}
1078	+	}
1079	+
1080	+	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1081	+	protected void realRun() throws InterruptedException {
1082	+	delay(SHORT_DELAY_MS);
1083	+	}
1084	+	}
1085	+
1086	+	public class SmallRunnable extends CheckedRunnable {
1087	+	protected void realRun() throws Throwable {
1088	+	delay(SMALL_DELAY_MS);
1089	+	}
1090	+	}
1091	+
1092	+	public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1093	+	protected void realRun() {
1094	+	try {
1095	+	delay(SMALL_DELAY_MS);
1096	+	} catch (InterruptedException ok) {}
1097	+	}
1098	+	}
1099	+
1100	+	public class SmallCallable extends CheckedCallable {
1101	+	protected Object realCall() throws InterruptedException {
1102	+	delay(SMALL_DELAY_MS);
1103		return Boolean.TRUE;
1104		}
1105		}
1106
1107	<	public class SmallInterruptedRunnable implements Runnable {
1107	>	public class MediumRunnable extends CheckedRunnable {
1108	>	protected void realRun() throws Throwable {
1109	>	delay(MEDIUM_DELAY_MS);
1110	>	}
1111	>	}
1112	>
1113	>	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1114	>	protected void realRun() throws InterruptedException {
1115	>	delay(MEDIUM_DELAY_MS);
1116	>	}
1117	>	}
1118	>
1119	>	public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1120	>	return new CheckedRunnable() {
1121	>	protected void realRun() {
1122	>	try {
1123	>	delay(timeoutMillis);
1124	>	} catch (InterruptedException ok) {}
1125	>	}};
1126	>	}
1127	>
1128	>	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1129	>	protected void realRun() {
1130	>	try {
1131	>	delay(MEDIUM_DELAY_MS);
1132	>	} catch (InterruptedException ok) {}
1133	>	}
1134	>	}
1135	>
1136	>	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1137	>	protected void realRun() {
1138	>	try {
1139	>	delay(LONG_DELAY_MS);
1140	>	} catch (InterruptedException ok) {}
1141	>	}
1142	>	}
1143	>
1144	>	/**
1145	>	* For use as ThreadFactory in constructors
1146	>	*/
1147	>	public static class SimpleThreadFactory implements ThreadFactory {
1148	>	public Thread newThread(Runnable r) {
1149	>	return new Thread(r);
1150	>	}
1151	>	}
1152	>
1153	>	public interface TrackedRunnable extends Runnable {
1154	>	boolean isDone();
1155	>	}
1156	>
1157	>	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1158	>	return new TrackedRunnable() {
1159	>	private volatile boolean done = false;
1160	>	public boolean isDone() { return done; }
1161	>	public void run() {
1162	>	try {
1163	>	delay(timeoutMillis);
1164	>	done = true;
1165	>	} catch (InterruptedException ok) {}
1166	>	}
1167	>	};
1168	>	}
1169	>
1170	>	public static class TrackedShortRunnable implements Runnable {
1171	>	public volatile boolean done = false;
1172		public void run() {
1173		try {
1174	<	Thread.sleep(SMALL_DELAY_MS);
1175	<	threadFail("should throw IE");
1176	<	}
216	<	catch(InterruptedException success) {
217	<	}
1174	>	delay(SHORT_DELAY_MS);
1175	>	done = true;
1176	>	} catch (InterruptedException ok) {}
1177		}
1178		}
1179
1180	+	public static class TrackedSmallRunnable implements Runnable {
1181	+	public volatile boolean done = false;
1182	+	public void run() {
1183	+	try {
1184	+	delay(SMALL_DELAY_MS);
1185	+	done = true;
1186	+	} catch (InterruptedException ok) {}
1187	+	}
1188	+	}
1189
1190	<	public class MediumRunnable implements Runnable {
1190	>	public static class TrackedMediumRunnable implements Runnable {
1191	>	public volatile boolean done = false;
1192		public void run() {
1193		try {
1194	<	Thread.sleep(MEDIUM_DELAY_MS);
1195	<	}
1196	<	catch(Exception e) {
228	<	threadFail("unexpectedException");
229	<	}
1194	>	delay(MEDIUM_DELAY_MS);
1195	>	done = true;
1196	>	} catch (InterruptedException ok) {}
1197		}
1198		}
1199
1200	<	public class MediumInterruptedRunnable implements Runnable {
1200	>	public static class TrackedLongRunnable implements Runnable {
1201	>	public volatile boolean done = false;
1202		public void run() {
1203		try {
1204	<	Thread.sleep(MEDIUM_DELAY_MS);
1205	<	threadFail("should throw IE");
1206	<	}
239	<	catch(InterruptedException success) {
240	<	}
1204	>	delay(LONG_DELAY_MS);
1205	>	done = true;
1206	>	} catch (InterruptedException ok) {}
1207		}
1208		}
1209
1210	<	public class MediumPossiblyInterruptedRunnable implements Runnable {
1210	>	public static class TrackedNoOpRunnable implements Runnable {
1211	>	public volatile boolean done = false;
1212		public void run() {
1213	+	done = true;
1214	+	}
1215	+	}
1216	+
1217	+	public static class TrackedCallable implements Callable {
1218	+	public volatile boolean done = false;
1219	+	public Object call() {
1220	+	try {
1221	+	delay(SMALL_DELAY_MS);
1222	+	done = true;
1223	+	} catch (InterruptedException ok) {}
1224	+	return Boolean.TRUE;
1225	+	}
1226	+	}
1227	+
1228	+	/**
1229	+	* Analog of CheckedRunnable for RecursiveAction
1230	+	*/
1231	+	public abstract class CheckedRecursiveAction extends RecursiveAction {
1232	+	protected abstract void realCompute() throws Throwable;
1233	+
1234	+	public final void compute() {
1235	+	try {
1236	+	realCompute();
1237	+	} catch (Throwable t) {
1238	+	threadUnexpectedException(t);
1239	+	}
1240	+	}
1241	+	}
1242	+
1243	+	/**
1244	+	* Analog of CheckedCallable for RecursiveTask
1245	+	*/
1246	+	public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1247	+	protected abstract T realCompute() throws Throwable;
1248	+
1249	+	public final T compute() {
1250		try {
1251	<	Thread.sleep(MEDIUM_DELAY_MS);
1251	>	return realCompute();
1252	>	} catch (Throwable t) {
1253	>	threadUnexpectedException(t);
1254	>	return null;
1255		}
1256	<	catch(InterruptedException success) {
1256	>	}
1257	>	}
1258	>
1259	>	/**
1260	>	* For use as RejectedExecutionHandler in constructors
1261	>	*/
1262	>	public static class NoOpREHandler implements RejectedExecutionHandler {
1263	>	public void rejectedExecution(Runnable r,
1264	>	ThreadPoolExecutor executor) {}
1265	>	}
1266	>
1267	>	/**
1268	>	* A CyclicBarrier that uses timed await and fails with
1269	>	* AssertionFailedErrors instead of throwing checked exceptions.
1270	>	*/
1271	>	public class CheckedBarrier extends CyclicBarrier {
1272	>	public CheckedBarrier(int parties) { super(parties); }
1273	>
1274	>	public int await() {
1275	>	try {
1276	>	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1277	>	} catch (TimeoutException e) {
1278	>	throw new AssertionFailedError("timed out");
1279	>	} catch (Exception e) {
1280	>	AssertionFailedError afe =
1281	>	new AssertionFailedError("Unexpected exception: " + e);
1282	>	afe.initCause(e);
1283	>	throw afe;
1284		}
1285		}
1286		}
1287	<
1287	>
1288	>	void checkEmpty(BlockingQueue q) {
1289	>	try {
1290	>	assertTrue(q.isEmpty());
1291	>	assertEquals(0, q.size());
1292	>	assertNull(q.peek());
1293	>	assertNull(q.poll());
1294	>	assertNull(q.poll(0, MILLISECONDS));
1295	>	assertEquals(q.toString(), "[]");
1296	>	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1297	>	assertFalse(q.iterator().hasNext());
1298	>	try {
1299	>	q.element();
1300	>	shouldThrow();
1301	>	} catch (NoSuchElementException success) {}
1302	>	try {
1303	>	q.iterator().next();
1304	>	shouldThrow();
1305	>	} catch (NoSuchElementException success) {}
1306	>	try {
1307	>	q.remove();
1308	>	shouldThrow();
1309	>	} catch (NoSuchElementException success) {}
1310	>	} catch (InterruptedException ie) {
1311	>	threadUnexpectedException(ie);
1312	>	}
1313	>	}
1314	>
1315	>	void assertSerialEquals(Object x, Object y) {
1316	>	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1317	>	}
1318	>
1319	>	void assertNotSerialEquals(Object x, Object y) {
1320	>	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1321	>	}
1322	>
1323	>	byte[] serialBytes(Object o) {
1324	>	try {
1325	>	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1326	>	ObjectOutputStream oos = new ObjectOutputStream(bos);
1327	>	oos.writeObject(o);
1328	>	oos.flush();
1329	>	oos.close();
1330	>	return bos.toByteArray();
1331	>	} catch (Throwable t) {
1332	>	threadUnexpectedException(t);
1333	>	return new byte[0];
1334	>	}
1335	>	}
1336	>
1337	>	@SuppressWarnings("unchecked")
1338	>	<T> T serialClone(T o) {
1339	>	try {
1340	>	ObjectInputStream ois = new ObjectInputStream
1341	>	(new ByteArrayInputStream(serialBytes(o)));
1342	>	T clone = (T) ois.readObject();
1343	>	assertSame(o.getClass(), clone.getClass());
1344	>	return clone;
1345	>	} catch (Throwable t) {
1346	>	threadUnexpectedException(t);
1347	>	return null;
1348	>	}
1349	>	}
1350		}

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