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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.3 by dl, Sat Sep 20 18:20:08 2003 UTC vs.
Revision 1.100 by jsr166, Wed Feb 6 16:55:50 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		* 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>
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	+	* If true, report on stdout all "slow" tests, that is, ones that
119	+	* take more than profileThreshold milliseconds to execute.
120	+	*/
121	+	private static final boolean profileTests =
122	+	Boolean.getBoolean("jsr166.profileTests");
123	+
124	+	/**
125	+	* The number of milliseconds that tests are permitted for
126	+	* execution without being reported, when profileTests is set.
127	+	*/
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	+	* 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 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	+	"StampedLockTest",
290	+	"ForkJoinPool8Test",
291	+	};
292	+	addNamedTestClasses(suite, java8TestClassNames);
293	+	}
294	+
295	+	return suite;
296	+	}
297	+
298
299		public static long SHORT_DELAY_MS;
300		public static long SMALL_DELAY_MS;
#	Line 60 | Line 303 | public class JSR166TestCase extends Test
303
304
305		/**
306	<	* Return the shortest timed delay. This could
307	<	* be reimplmented to use for example a Property.
308	<	*/
306	>	* Returns the shortest timed delay. This could
307	>	* be reimplemented to use for example a Property.
308	>	*/
309		protected long getShortDelay() {
310		return 50;
311		}
312
70	–
313		/**
314	<	* Set delays as multiples fo SHORT_DELAY.
314	>	* Sets delays as multiples of SHORT_DELAY.
315		*/
316	<	protected  void setDelays() {
316	>	protected void setDelays() {
317		SHORT_DELAY_MS = getShortDelay();
318	<	SMALL_DELAY_MS = SHORT_DELAY_MS * 5;
318	>	SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
319		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
320	<	LONG_DELAY_MS = SHORT_DELAY_MS * 50;
320	>	LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
321	>	}
322	>
323	>	/**
324	>	* Returns a timeout in milliseconds to be used in tests that
325	>	* verify that operations block or time out.
326	>	*/
327	>	long timeoutMillis() {
328	>	return SHORT_DELAY_MS / 4;
329	>	}
330	>
331	>	/**
332	>	* Returns a new Date instance representing a time delayMillis
333	>	* milliseconds in the future.
334	>	*/
335	>	Date delayedDate(long delayMillis) {
336	>	return new Date(System.currentTimeMillis() + delayMillis);
337		}
338
339		/**
340	<	* Flag set true if any threadAssert methods fail
340	>	* The first exception encountered if any threadAssertXXX method fails.
341		*/
342	<	protected volatile boolean threadFailed;
342	>	private final AtomicReference<Throwable> threadFailure
343	>	= new AtomicReference<Throwable>(null);
344
345		/**
346	<	* Initialize test to indicat that no thread assertions have failed
346	>	* Records an exception so that it can be rethrown later in the test
347	>	* harness thread, triggering a test case failure.  Only the first
348	>	* failure is recorded; subsequent calls to this method from within
349	>	* the same test have no effect.
350		*/
351	<	public void setUp() {
351	>	public void threadRecordFailure(Throwable t) {
352	>	threadFailure.compareAndSet(null, t);
353	>	}
354	>
355	>	public void setUp() {
356		setDelays();
91	–	threadFailed = false;
357		}
358
359		/**
360	<	* Trigger test case failure if any thread assertions have failed
360	>	* Extra checks that get done for all test cases.
361	>	*
362	>	* Triggers test case failure if any thread assertions have failed,
363	>	* by rethrowing, in the test harness thread, any exception recorded
364	>	* earlier by threadRecordFailure.
365	>	*
366	>	* Triggers test case failure if interrupt status is set in the main thread.
367		*/
368	<	public void tearDown() {
369	<	assertFalse(threadFailed);
368	>	public void tearDown() throws Exception {
369	>	Throwable t = threadFailure.getAndSet(null);
370	>	if (t != null) {
371	>	if (t instanceof Error)
372	>	throw (Error) t;
373	>	else if (t instanceof RuntimeException)
374	>	throw (RuntimeException) t;
375	>	else if (t instanceof Exception)
376	>	throw (Exception) t;
377	>	else {
378	>	AssertionFailedError afe =
379	>	new AssertionFailedError(t.toString());
380	>	afe.initCause(t);
381	>	throw afe;
382	>	}
383	>	}
384	>
385	>	if (Thread.interrupted())
386	>	throw new AssertionFailedError("interrupt status set in main thread");
387	>
388	>	checkForkJoinPoolThreadLeaks();
389		}
390
391	+	/**
392	+	* Find missing try { ... } finally { joinPool(e); }
393	+	*/
394	+	void checkForkJoinPoolThreadLeaks() throws InterruptedException {
395	+	Thread[] survivors = new Thread[5];
396	+	int count = Thread.enumerate(survivors);
397	+	for (int i = 0; i < count; i++) {
398	+	Thread thread = survivors[i];
399	+	String name = thread.getName();
400	+	if (name.startsWith("ForkJoinPool-")) {
401	+	// give thread some time to terminate
402	+	thread.join(LONG_DELAY_MS);
403	+	if (!thread.isAlive()) continue;
404	+	thread.stop();
405	+	throw new AssertionFailedError
406	+	(String.format("Found leaked ForkJoinPool thread test=%s thread=%s%n",
407	+	toString(), name));
408	+	}
409	+	}
410	+	}
411	+
412	+	/**
413	+	* Just like fail(reason), but additionally recording (using
414	+	* threadRecordFailure) any AssertionFailedError thrown, so that
415	+	* the current testcase will fail.
416	+	*/
417		public void threadFail(String reason) {
418	<	threadFailed = true;
419	<	fail(reason);
418	>	try {
419	>	fail(reason);
420	>	} catch (AssertionFailedError t) {
421	>	threadRecordFailure(t);
422	>	fail(reason);
423	>	}
424		}
425
426	+	/**
427	+	* Just like assertTrue(b), but additionally recording (using
428	+	* threadRecordFailure) any AssertionFailedError thrown, so that
429	+	* the current testcase will fail.
430	+	*/
431		public void threadAssertTrue(boolean b) {
432	<	if (!b) {
108	<	threadFailed = true;
432	>	try {
433		assertTrue(b);
434	+	} catch (AssertionFailedError t) {
435	+	threadRecordFailure(t);
436	+	throw t;
437		}
438		}
439	+
440	+	/**
441	+	* Just like assertFalse(b), but additionally recording (using
442	+	* threadRecordFailure) any AssertionFailedError thrown, so that
443	+	* the current testcase will fail.
444	+	*/
445		public void threadAssertFalse(boolean b) {
446	<	if (b) {
114	<	threadFailed = true;
446	>	try {
447		assertFalse(b);
448	+	} catch (AssertionFailedError t) {
449	+	threadRecordFailure(t);
450	+	throw t;
451		}
452		}
453	+
454	+	/**
455	+	* Just like assertNull(x), but additionally recording (using
456	+	* threadRecordFailure) any AssertionFailedError thrown, so that
457	+	* the current testcase will fail.
458	+	*/
459		public void threadAssertNull(Object x) {
460	<	if (x != null) {
120	<	threadFailed = true;
460	>	try {
461		assertNull(x);
462	+	} catch (AssertionFailedError t) {
463	+	threadRecordFailure(t);
464	+	throw t;
465		}
466		}
467	+
468	+	/**
469	+	* Just like assertEquals(x, y), but additionally recording (using
470	+	* threadRecordFailure) any AssertionFailedError thrown, so that
471	+	* the current testcase will fail.
472	+	*/
473		public void threadAssertEquals(long x, long y) {
474	<	if (x != y) {
126	<	threadFailed = true;
474	>	try {
475		assertEquals(x, y);
476	+	} catch (AssertionFailedError t) {
477	+	threadRecordFailure(t);
478	+	throw t;
479		}
480		}
481	+
482	+	/**
483	+	* Just like assertEquals(x, y), but additionally recording (using
484	+	* threadRecordFailure) any AssertionFailedError thrown, so that
485	+	* the current testcase will fail.
486	+	*/
487		public void threadAssertEquals(Object x, Object y) {
488	<	if (x != y && (x == null || !x.equals(y))) {
132	<	threadFailed = true;
488	>	try {
489		assertEquals(x, y);
490	+	} catch (AssertionFailedError t) {
491	+	threadRecordFailure(t);
492	+	throw t;
493	+	} catch (Throwable t) {
494	+	threadUnexpectedException(t);
495		}
496		}
497
498	+	/**
499	+	* Just like assertSame(x, y), but additionally recording (using
500	+	* threadRecordFailure) any AssertionFailedError thrown, so that
501	+	* the current testcase will fail.
502	+	*/
503	+	public void threadAssertSame(Object x, Object y) {
504	+	try {
505	+	assertSame(x, y);
506	+	} catch (AssertionFailedError t) {
507	+	threadRecordFailure(t);
508	+	throw t;
509	+	}
510	+	}
511	+
512	+	/**
513	+	* Calls threadFail with message "should throw exception".
514	+	*/
515		public void threadShouldThrow() {
516	<	threadFailed = true;
139	<	fail("should throw exception");
516	>	threadFail("should throw exception");
517		}
518
519	<	public void threadUnexpectedException() {
520	<	threadFailed = true;
521	<	fail("Unexpected exception");
519	>	/**
520	>	* Calls threadFail with message "should throw" + exceptionName.
521	>	*/
522	>	public void threadShouldThrow(String exceptionName) {
523	>	threadFail("should throw " + exceptionName);
524		}
525
526	+	/**
527	+	* Records the given exception using {@link #threadRecordFailure},
528	+	* then rethrows the exception, wrapping it in an
529	+	* AssertionFailedError if necessary.
530	+	*/
531	+	public void threadUnexpectedException(Throwable t) {
532	+	threadRecordFailure(t);
533	+	t.printStackTrace();
534	+	if (t instanceof RuntimeException)
535	+	throw (RuntimeException) t;
536	+	else if (t instanceof Error)
537	+	throw (Error) t;
538	+	else {
539	+	AssertionFailedError afe =
540	+	new AssertionFailedError("unexpected exception: " + t);
541	+	afe.initCause(t);
542	+	throw afe;
543	+	}
544	+	}
545
546		/**
547	<	* Wait out termination of a thread pool or fail doing so
547	>	* Delays, via Thread.sleep, for the given millisecond delay, but
548	>	* if the sleep is shorter than specified, may re-sleep or yield
549	>	* until time elapses.
550		*/
551	<	public void joinPool(ExecutorService exec) {
551	>	static void delay(long millis) throws InterruptedException {
552	>	long startTime = System.nanoTime();
553	>	long ns = millis * 1000 * 1000;
554	>	for (;;) {
555	>	if (millis > 0L)
556	>	Thread.sleep(millis);
557	>	else // too short to sleep
558	>	Thread.yield();
559	>	long d = ns - (System.nanoTime() - startTime);
560	>	if (d > 0L)
561	>	millis = d / (1000 * 1000);
562	>	else
563	>	break;
564	>	}
565	>	}
566	>
567	>	/**
568	>	* Waits out termination of a thread pool or fails doing so.
569	>	*/
570	>	void joinPool(ExecutorService exec) {
571		try {
572		exec.shutdown();
573	<	assertTrue(exec.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
574	<	} catch(InterruptedException ie) {
575	<	fail("Unexpected exception");
573	>	assertTrue("ExecutorService did not terminate in a timely manner",
574	>	exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS));
575	>	} catch (SecurityException ok) {
576	>	// Allowed in case test doesn't have privs
577	>	} catch (InterruptedException ie) {
578	>	fail("Unexpected InterruptedException");
579	>	}
580	>	}
581	>
582	>	/**
583	>	* A debugging tool to print all stack traces, as jstack does.
584	>	*/
585	>	static void printAllStackTraces() {
586	>	for (ThreadInfo info :
587	>	ManagementFactory.getThreadMXBean()
588	>	.dumpAllThreads(true, true))
589	>	System.err.print(info);
590	>	}
591	>
592	>	/**
593	>	* Checks that thread does not terminate within the default
594	>	* millisecond delay of {@code timeoutMillis()}.
595	>	*/
596	>	void assertThreadStaysAlive(Thread thread) {
597	>	assertThreadStaysAlive(thread, timeoutMillis());
598	>	}
599	>
600	>	/**
601	>	* Checks that thread does not terminate within the given millisecond delay.
602	>	*/
603	>	void assertThreadStaysAlive(Thread thread, long millis) {
604	>	try {
605	>	// No need to optimize the failing case via Thread.join.
606	>	delay(millis);
607	>	assertTrue(thread.isAlive());
608	>	} catch (InterruptedException ie) {
609	>	fail("Unexpected InterruptedException");
610		}
611		}
612
613	<
613	>	/**
614	>	* Checks that the threads do not terminate within the default
615	>	* millisecond delay of {@code timeoutMillis()}.
616	>	*/
617	>	void assertThreadsStayAlive(Thread... threads) {
618	>	assertThreadsStayAlive(timeoutMillis(), threads);
619	>	}
620	>
621	>	/**
622	>	* Checks that the threads do not terminate within the given millisecond delay.
623	>	*/
624	>	void assertThreadsStayAlive(long millis, Thread... threads) {
625	>	try {
626	>	// No need to optimize the failing case via Thread.join.
627	>	delay(millis);
628	>	for (Thread thread : threads)
629	>	assertTrue(thread.isAlive());
630	>	} catch (InterruptedException ie) {
631	>	fail("Unexpected InterruptedException");
632	>	}
633	>	}
634	>
635	>	/**
636	>	* Checks that future.get times out, with the default timeout of
637	>	* {@code timeoutMillis()}.
638	>	*/
639	>	void assertFutureTimesOut(Future future) {
640	>	assertFutureTimesOut(future, timeoutMillis());
641	>	}
642	>
643	>	/**
644	>	* Checks that future.get times out, with the given millisecond timeout.
645	>	*/
646	>	void assertFutureTimesOut(Future future, long timeoutMillis) {
647	>	long startTime = System.nanoTime();
648	>	try {
649	>	future.get(timeoutMillis, MILLISECONDS);
650	>	shouldThrow();
651	>	} catch (TimeoutException success) {
652	>	} catch (Exception e) {
653	>	threadUnexpectedException(e);
654	>	} finally { future.cancel(true); }
655	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
656	>	}
657	>
658	>	/**
659	>	* Fails with message "should throw exception".
660	>	*/
661		public void shouldThrow() {
662		fail("Should throw exception");
663		}
664
665	<	public void unexpectedException() {
666	<	fail("Unexpected exception");
665	>	/**
666	>	* Fails with message "should throw " + exceptionName.
667	>	*/
668	>	public void shouldThrow(String exceptionName) {
669	>	fail("Should throw " + exceptionName);
670		}
671
169	–
672		/**
673		* The number of elements to place in collections, arrays, etc.
674		*/
#	Line 174 | Line 676 | public class JSR166TestCase extends Test
676
677		// Some convenient Integer constants
678
679	<	public static final Integer zero = new Integer(0);
680	<	public static final Integer one = new Integer(1);
681	<	public static final Integer two = new Integer(2);
682	<	public static final Integer three  = new Integer(3);
679	>	public static final Integer zero  = new Integer(0);
680	>	public static final Integer one   = new Integer(1);
681	>	public static final Integer two   = new Integer(2);
682	>	public static final Integer three = new Integer(3);
683		public static final Integer four  = new Integer(4);
684		public static final Integer five  = new Integer(5);
685	<	public static final Integer six = new Integer(6);
685	>	public static final Integer six   = new Integer(6);
686		public static final Integer seven = new Integer(7);
687		public static final Integer eight = new Integer(8);
688	<	public static final Integer nine = new Integer(9);
688	>	public static final Integer nine  = new Integer(9);
689		public static final Integer m1  = new Integer(-1);
690		public static final Integer m2  = new Integer(-2);
691		public static final Integer m3  = new Integer(-3);
692	<	public static final Integer m4 = new Integer(-4);
693	<	public static final Integer m5 = new Integer(-5);
692	>	public static final Integer m4  = new Integer(-4);
693	>	public static final Integer m5  = new Integer(-5);
694	>	public static final Integer m6  = new Integer(-6);
695		public static final Integer m10 = new Integer(-10);
696
697
698	<	// Some convenient Runnable classes
698	>	/**
699	>	* Runs Runnable r with a security policy that permits precisely
700	>	* the specified permissions.  If there is no current security
701	>	* manager, the runnable is run twice, both with and without a
702	>	* security manager.  We require that any security manager permit
703	>	* getPolicy/setPolicy.
704	>	*/
705	>	public void runWithPermissions(Runnable r, Permission... permissions) {
706	>	SecurityManager sm = System.getSecurityManager();
707	>	if (sm == null) {
708	>	r.run();
709	>	}
710	>	runWithSecurityManagerWithPermissions(r, permissions);
711	>	}
712
713	<	public static class NoOpRunnable implements Runnable {
714	<	public void run() {}
713	>	/**
714	>	* Runs Runnable r with a security policy that permits precisely
715	>	* the specified permissions.  If there is no current security
716	>	* manager, a temporary one is set for the duration of the
717	>	* Runnable.  We require that any security manager permit
718	>	* getPolicy/setPolicy.
719	>	*/
720	>	public void runWithSecurityManagerWithPermissions(Runnable r,
721	>	Permission... permissions) {
722	>	SecurityManager sm = System.getSecurityManager();
723	>	if (sm == null) {
724	>	Policy savedPolicy = Policy.getPolicy();
725	>	try {
726	>	Policy.setPolicy(permissivePolicy());
727	>	System.setSecurityManager(new SecurityManager());
728	>	runWithSecurityManagerWithPermissions(r, permissions);
729	>	} finally {
730	>	System.setSecurityManager(null);
731	>	Policy.setPolicy(savedPolicy);
732	>	}
733	>	} else {
734	>	Policy savedPolicy = Policy.getPolicy();
735	>	AdjustablePolicy policy = new AdjustablePolicy(permissions);
736	>	Policy.setPolicy(policy);
737	>
738	>	try {
739	>	r.run();
740	>	} finally {
741	>	policy.addPermission(new SecurityPermission("setPolicy"));
742	>	Policy.setPolicy(savedPolicy);
743	>	}
744	>	}
745		}
746
747	<	public static class NoOpCallable implements Callable {
748	<	public Object call() { return Boolean.TRUE; }
747	>	/**
748	>	* Runs a runnable without any permissions.
749	>	*/
750	>	public void runWithoutPermissions(Runnable r) {
751	>	runWithPermissions(r);
752		}
753
754	<	public class ShortRunnable implements Runnable {
755	<	public void run() {
756	<	try {
757	<	Thread.sleep(SHORT_DELAY_MS);
754	>	/**
755	>	* A security policy where new permissions can be dynamically added
756	>	* or all cleared.
757	>	*/
758	>	public static class AdjustablePolicy extends java.security.Policy {
759	>	Permissions perms = new Permissions();
760	>	AdjustablePolicy(Permission... permissions) {
761	>	for (Permission permission : permissions)
762	>	perms.add(permission);
763	>	}
764	>	void addPermission(Permission perm) { perms.add(perm); }
765	>	void clearPermissions() { perms = new Permissions(); }
766	>	public PermissionCollection getPermissions(CodeSource cs) {
767	>	return perms;
768	>	}
769	>	public PermissionCollection getPermissions(ProtectionDomain pd) {
770	>	return perms;
771	>	}
772	>	public boolean implies(ProtectionDomain pd, Permission p) {
773	>	return perms.implies(p);
774	>	}
775	>	public void refresh() {}
776	>	public String toString() {
777	>	List<Permission> ps = new ArrayList<Permission>();
778	>	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
779	>	ps.add(e.nextElement());
780	>	return "AdjustablePolicy with permissions " + ps;
781	>	}
782	>	}
783	>
784	>	/**
785	>	* Returns a policy containing all the permissions we ever need.
786	>	*/
787	>	public static Policy permissivePolicy() {
788	>	return new AdjustablePolicy
789	>	// Permissions j.u.c. needs directly
790	>	(new RuntimePermission("modifyThread"),
791	>	new RuntimePermission("getClassLoader"),
792	>	new RuntimePermission("setContextClassLoader"),
793	>	// Permissions needed to change permissions!
794	>	new SecurityPermission("getPolicy"),
795	>	new SecurityPermission("setPolicy"),
796	>	new RuntimePermission("setSecurityManager"),
797	>	// Permissions needed by the junit test harness
798	>	new RuntimePermission("accessDeclaredMembers"),
799	>	new PropertyPermission("*", "read"),
800	>	new java.io.FilePermission("<<ALL FILES>>", "read"));
801	>	}
802	>
803	>	/**
804	>	* Sleeps until the given time has elapsed.
805	>	* Throws AssertionFailedError if interrupted.
806	>	*/
807	>	void sleep(long millis) {
808	>	try {
809	>	delay(millis);
810	>	} catch (InterruptedException ie) {
811	>	AssertionFailedError afe =
812	>	new AssertionFailedError("Unexpected InterruptedException");
813	>	afe.initCause(ie);
814	>	throw afe;
815	>	}
816	>	}
817	>
818	>	/**
819	>	* Spin-waits up to the specified number of milliseconds for the given
820	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
821	>	*/
822	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
823	>	long startTime = System.nanoTime();
824	>	for (;;) {
825	>	Thread.State s = thread.getState();
826	>	if (s == Thread.State.BLOCKED ||
827	>	s == Thread.State.WAITING ||
828	>	s == Thread.State.TIMED_WAITING)
829	>	return;
830	>	else if (s == Thread.State.TERMINATED)
831	>	fail("Unexpected thread termination");
832	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
833	>	threadAssertTrue(thread.isAlive());
834	>	return;
835		}
836	<	catch(Exception e) {
837	<	threadUnexpectedException();
836	>	Thread.yield();
837	>	}
838	>	}
839	>
840	>	/**
841	>	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
842	>	* state: BLOCKED, WAITING, or TIMED_WAITING.
843	>	*/
844	>	void waitForThreadToEnterWaitState(Thread thread) {
845	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
846	>	}
847	>
848	>	/**
849	>	* Returns the number of milliseconds since time given by
850	>	* startNanoTime, which must have been previously returned from a
851	>	* call to {@link System.nanoTime()}.
852	>	*/
853	>	long millisElapsedSince(long startNanoTime) {
854	>	return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
855	>	}
856	>
857	>	/**
858	>	* Returns a new started daemon Thread running the given runnable.
859	>	*/
860	>	Thread newStartedThread(Runnable runnable) {
861	>	Thread t = new Thread(runnable);
862	>	t.setDaemon(true);
863	>	t.start();
864	>	return t;
865	>	}
866	>
867	>	/**
868	>	* Waits for the specified time (in milliseconds) for the thread
869	>	* to terminate (using {@link Thread#join(long)}), else interrupts
870	>	* the thread (in the hope that it may terminate later) and fails.
871	>	*/
872	>	void awaitTermination(Thread t, long timeoutMillis) {
873	>	try {
874	>	t.join(timeoutMillis);
875	>	} catch (InterruptedException ie) {
876	>	threadUnexpectedException(ie);
877	>	} finally {
878	>	if (t.getState() != Thread.State.TERMINATED) {
879	>	t.interrupt();
880	>	fail("Test timed out");
881		}
882		}
883		}
884
885	<	public class ShortInterruptedRunnable implements Runnable {
886	<	public void run() {
885	>	/**
886	>	* Waits for LONG_DELAY_MS milliseconds for the thread to
887	>	* terminate (using {@link Thread#join(long)}), else interrupts
888	>	* the thread (in the hope that it may terminate later) and fails.
889	>	*/
890	>	void awaitTermination(Thread t) {
891	>	awaitTermination(t, LONG_DELAY_MS);
892	>	}
893	>
894	>	// Some convenient Runnable classes
895	>
896	>	public abstract class CheckedRunnable implements Runnable {
897	>	protected abstract void realRun() throws Throwable;
898	>
899	>	public final void run() {
900		try {
901	<	Thread.sleep(SHORT_DELAY_MS);
902	<	threadShouldThrow();
901	>	realRun();
902	>	} catch (Throwable t) {
903	>	threadUnexpectedException(t);
904		}
905	<	catch(InterruptedException success) {
905	>	}
906	>	}
907	>
908	>	public abstract class RunnableShouldThrow implements Runnable {
909	>	protected abstract void realRun() throws Throwable;
910	>
911	>	final Class<?> exceptionClass;
912	>
913	>	<T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) {
914	>	this.exceptionClass = exceptionClass;
915	>	}
916	>
917	>	public final void run() {
918	>	try {
919	>	realRun();
920	>	threadShouldThrow(exceptionClass.getSimpleName());
921	>	} catch (Throwable t) {
922	>	if (! exceptionClass.isInstance(t))
923	>	threadUnexpectedException(t);
924		}
925		}
926		}
927
928	<	public class SmallRunnable implements Runnable {
929	<	public void run() {
928	>	public abstract class ThreadShouldThrow extends Thread {
929	>	protected abstract void realRun() throws Throwable;
930	>
931	>	final Class<?> exceptionClass;
932	>
933	>	<T extends Throwable> ThreadShouldThrow(Class<T> exceptionClass) {
934	>	this.exceptionClass = exceptionClass;
935	>	}
936	>
937	>	public final void run() {
938		try {
939	<	Thread.sleep(SMALL_DELAY_MS);
939	>	realRun();
940	>	threadShouldThrow(exceptionClass.getSimpleName());
941	>	} catch (Throwable t) {
942	>	if (! exceptionClass.isInstance(t))
943	>	threadUnexpectedException(t);
944		}
945	<	catch(Exception e) {
946	<	threadUnexpectedException();
945	>	}
946	>	}
947	>
948	>	public abstract class CheckedInterruptedRunnable implements Runnable {
949	>	protected abstract void realRun() throws Throwable;
950	>
951	>	public final void run() {
952	>	try {
953	>	realRun();
954	>	threadShouldThrow("InterruptedException");
955	>	} catch (InterruptedException success) {
956	>	threadAssertFalse(Thread.interrupted());
957	>	} catch (Throwable t) {
958	>	threadUnexpectedException(t);
959		}
960		}
961		}
962
963	<	public class SmallCallable implements Callable {
964	<	public Object call() {
963	>	public abstract class CheckedCallable<T> implements Callable<T> {
964	>	protected abstract T realCall() throws Throwable;
965	>
966	>	public final T call() {
967		try {
968	<	Thread.sleep(SMALL_DELAY_MS);
968	>	return realCall();
969	>	} catch (Throwable t) {
970	>	threadUnexpectedException(t);
971	>	return null;
972		}
973	<	catch(Exception e) {
974	<	threadUnexpectedException();
973	>	}
974	>	}
975	>
976	>	public abstract class CheckedInterruptedCallable<T>
977	>	implements Callable<T> {
978	>	protected abstract T realCall() throws Throwable;
979	>
980	>	public final T call() {
981	>	try {
982	>	T result = realCall();
983	>	threadShouldThrow("InterruptedException");
984	>	return result;
985	>	} catch (InterruptedException success) {
986	>	threadAssertFalse(Thread.interrupted());
987	>	} catch (Throwable t) {
988	>	threadUnexpectedException(t);
989		}
990	+	return null;
991	+	}
992	+	}
993	+
994	+	public static class NoOpRunnable implements Runnable {
995	+	public void run() {}
996	+	}
997	+
998	+	public static class NoOpCallable implements Callable {
999	+	public Object call() { return Boolean.TRUE; }
1000	+	}
1001	+
1002	+	public static final String TEST_STRING = "a test string";
1003	+
1004	+	public static class StringTask implements Callable<String> {
1005	+	public String call() { return TEST_STRING; }
1006	+	}
1007	+
1008	+	public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
1009	+	return new CheckedCallable<String>() {
1010	+	protected String realCall() {
1011	+	try {
1012	+	latch.await();
1013	+	} catch (InterruptedException quittingTime) {}
1014	+	return TEST_STRING;
1015	+	}};
1016	+	}
1017	+
1018	+	public Runnable awaiter(final CountDownLatch latch) {
1019	+	return new CheckedRunnable() {
1020	+	public void realRun() throws InterruptedException {
1021	+	await(latch);
1022	+	}};
1023	+	}
1024	+
1025	+	public void await(CountDownLatch latch) {
1026	+	try {
1027	+	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1028	+	} catch (Throwable t) {
1029	+	threadUnexpectedException(t);
1030	+	}
1031	+	}
1032	+
1033	+	public void await(Semaphore semaphore) {
1034	+	try {
1035	+	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1036	+	} catch (Throwable t) {
1037	+	threadUnexpectedException(t);
1038	+	}
1039	+	}
1040	+
1041	+	//     /**
1042	+	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1043	+	//      */
1044	+	//     public void await(AtomicBoolean flag) {
1045	+	//         await(flag, LONG_DELAY_MS);
1046	+	//     }
1047	+
1048	+	//     /**
1049	+	//      * Spin-waits up to the specified timeout until flag becomes true.
1050	+	//      */
1051	+	//     public void await(AtomicBoolean flag, long timeoutMillis) {
1052	+	//         long startTime = System.nanoTime();
1053	+	//         while (!flag.get()) {
1054	+	//             if (millisElapsedSince(startTime) > timeoutMillis)
1055	+	//                 throw new AssertionFailedError("timed out");
1056	+	//             Thread.yield();
1057	+	//         }
1058	+	//     }
1059	+
1060	+	public static class NPETask implements Callable<String> {
1061	+	public String call() { throw new NullPointerException(); }
1062	+	}
1063	+
1064	+	public static class CallableOne implements Callable<Integer> {
1065	+	public Integer call() { return one; }
1066	+	}
1067	+
1068	+	public class ShortRunnable extends CheckedRunnable {
1069	+	protected void realRun() throws Throwable {
1070	+	delay(SHORT_DELAY_MS);
1071	+	}
1072	+	}
1073	+
1074	+	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1075	+	protected void realRun() throws InterruptedException {
1076	+	delay(SHORT_DELAY_MS);
1077	+	}
1078	+	}
1079	+
1080	+	public class SmallRunnable extends CheckedRunnable {
1081	+	protected void realRun() throws Throwable {
1082	+	delay(SMALL_DELAY_MS);
1083	+	}
1084	+	}
1085	+
1086	+	public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1087	+	protected void realRun() {
1088	+	try {
1089	+	delay(SMALL_DELAY_MS);
1090	+	} catch (InterruptedException ok) {}
1091	+	}
1092	+	}
1093	+
1094	+	public class SmallCallable extends CheckedCallable {
1095	+	protected Object realCall() throws InterruptedException {
1096	+	delay(SMALL_DELAY_MS);
1097		return Boolean.TRUE;
1098		}
1099		}
1100
1101	<	public class SmallInterruptedRunnable implements Runnable {
1101	>	public class MediumRunnable extends CheckedRunnable {
1102	>	protected void realRun() throws Throwable {
1103	>	delay(MEDIUM_DELAY_MS);
1104	>	}
1105	>	}
1106	>
1107	>	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1108	>	protected void realRun() throws InterruptedException {
1109	>	delay(MEDIUM_DELAY_MS);
1110	>	}
1111	>	}
1112	>
1113	>	public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1114	>	return new CheckedRunnable() {
1115	>	protected void realRun() {
1116	>	try {
1117	>	delay(timeoutMillis);
1118	>	} catch (InterruptedException ok) {}
1119	>	}};
1120	>	}
1121	>
1122	>	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1123	>	protected void realRun() {
1124	>	try {
1125	>	delay(MEDIUM_DELAY_MS);
1126	>	} catch (InterruptedException ok) {}
1127	>	}
1128	>	}
1129	>
1130	>	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1131	>	protected void realRun() {
1132	>	try {
1133	>	delay(LONG_DELAY_MS);
1134	>	} catch (InterruptedException ok) {}
1135	>	}
1136	>	}
1137	>
1138	>	/**
1139	>	* For use as ThreadFactory in constructors
1140	>	*/
1141	>	public static class SimpleThreadFactory implements ThreadFactory {
1142	>	public Thread newThread(Runnable r) {
1143	>	return new Thread(r);
1144	>	}
1145	>	}
1146	>
1147	>	public interface TrackedRunnable extends Runnable {
1148	>	boolean isDone();
1149	>	}
1150	>
1151	>	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1152	>	return new TrackedRunnable() {
1153	>	private volatile boolean done = false;
1154	>	public boolean isDone() { return done; }
1155	>	public void run() {
1156	>	try {
1157	>	delay(timeoutMillis);
1158	>	done = true;
1159	>	} catch (InterruptedException ok) {}
1160	>	}
1161	>	};
1162	>	}
1163	>
1164	>	public static class TrackedShortRunnable implements Runnable {
1165	>	public volatile boolean done = false;
1166		public void run() {
1167		try {
1168	<	Thread.sleep(SMALL_DELAY_MS);
1169	<	threadShouldThrow();
1170	<	}
256	<	catch(InterruptedException success) {
257	<	}
1168	>	delay(SHORT_DELAY_MS);
1169	>	done = true;
1170	>	} catch (InterruptedException ok) {}
1171		}
1172		}
1173
1174	+	public static class TrackedSmallRunnable implements Runnable {
1175	+	public volatile boolean done = false;
1176	+	public void run() {
1177	+	try {
1178	+	delay(SMALL_DELAY_MS);
1179	+	done = true;
1180	+	} catch (InterruptedException ok) {}
1181	+	}
1182	+	}
1183
1184	<	public class MediumRunnable implements Runnable {
1184	>	public static class TrackedMediumRunnable implements Runnable {
1185	>	public volatile boolean done = false;
1186		public void run() {
1187		try {
1188	<	Thread.sleep(MEDIUM_DELAY_MS);
1189	<	}
1190	<	catch(Exception e) {
268	<	threadUnexpectedException();
269	<	}
1188	>	delay(MEDIUM_DELAY_MS);
1189	>	done = true;
1190	>	} catch (InterruptedException ok) {}
1191		}
1192		}
1193
1194	<	public class MediumInterruptedRunnable implements Runnable {
1194	>	public static class TrackedLongRunnable implements Runnable {
1195	>	public volatile boolean done = false;
1196		public void run() {
1197		try {
1198	<	Thread.sleep(MEDIUM_DELAY_MS);
1199	<	threadShouldThrow();
1200	<	}
279	<	catch(InterruptedException success) {
280	<	}
1198	>	delay(LONG_DELAY_MS);
1199	>	done = true;
1200	>	} catch (InterruptedException ok) {}
1201		}
1202		}
1203
1204	<	public class MediumPossiblyInterruptedRunnable implements Runnable {
1204	>	public static class TrackedNoOpRunnable implements Runnable {
1205	>	public volatile boolean done = false;
1206		public void run() {
1207	+	done = true;
1208	+	}
1209	+	}
1210	+
1211	+	public static class TrackedCallable implements Callable {
1212	+	public volatile boolean done = false;
1213	+	public Object call() {
1214		try {
1215	<	Thread.sleep(MEDIUM_DELAY_MS);
1215	>	delay(SMALL_DELAY_MS);
1216	>	done = true;
1217	>	} catch (InterruptedException ok) {}
1218	>	return Boolean.TRUE;
1219	>	}
1220	>	}
1221	>
1222	>	/**
1223	>	* Analog of CheckedRunnable for RecursiveAction
1224	>	*/
1225	>	public abstract class CheckedRecursiveAction extends RecursiveAction {
1226	>	protected abstract void realCompute() throws Throwable;
1227	>
1228	>	public final void compute() {
1229	>	try {
1230	>	realCompute();
1231	>	} catch (Throwable t) {
1232	>	threadUnexpectedException(t);
1233		}
1234	<	catch(InterruptedException success) {
1234	>	}
1235	>	}
1236	>
1237	>	/**
1238	>	* Analog of CheckedCallable for RecursiveTask
1239	>	*/
1240	>	public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1241	>	protected abstract T realCompute() throws Throwable;
1242	>
1243	>	public final T compute() {
1244	>	try {
1245	>	return realCompute();
1246	>	} catch (Throwable t) {
1247	>	threadUnexpectedException(t);
1248	>	return null;
1249		}
1250		}
1251		}
1252	<
1252	>
1253	>	/**
1254	>	* For use as RejectedExecutionHandler in constructors
1255	>	*/
1256	>	public static class NoOpREHandler implements RejectedExecutionHandler {
1257	>	public void rejectedExecution(Runnable r,
1258	>	ThreadPoolExecutor executor) {}
1259	>	}
1260	>
1261	>	/**
1262	>	* A CyclicBarrier that uses timed await and fails with
1263	>	* AssertionFailedErrors instead of throwing checked exceptions.
1264	>	*/
1265	>	public class CheckedBarrier extends CyclicBarrier {
1266	>	public CheckedBarrier(int parties) { super(parties); }
1267	>
1268	>	public int await() {
1269	>	try {
1270	>	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1271	>	} catch (TimeoutException e) {
1272	>	throw new AssertionFailedError("timed out");
1273	>	} catch (Exception e) {
1274	>	AssertionFailedError afe =
1275	>	new AssertionFailedError("Unexpected exception: " + e);
1276	>	afe.initCause(e);
1277	>	throw afe;
1278	>	}
1279	>	}
1280	>	}
1281	>
1282	>	void checkEmpty(BlockingQueue q) {
1283	>	try {
1284	>	assertTrue(q.isEmpty());
1285	>	assertEquals(0, q.size());
1286	>	assertNull(q.peek());
1287	>	assertNull(q.poll());
1288	>	assertNull(q.poll(0, MILLISECONDS));
1289	>	assertEquals(q.toString(), "[]");
1290	>	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1291	>	assertFalse(q.iterator().hasNext());
1292	>	try {
1293	>	q.element();
1294	>	shouldThrow();
1295	>	} catch (NoSuchElementException success) {}
1296	>	try {
1297	>	q.iterator().next();
1298	>	shouldThrow();
1299	>	} catch (NoSuchElementException success) {}
1300	>	try {
1301	>	q.remove();
1302	>	shouldThrow();
1303	>	} catch (NoSuchElementException success) {}
1304	>	} catch (InterruptedException ie) {
1305	>	threadUnexpectedException(ie);
1306	>	}
1307	>	}
1308	>
1309	>	void assertSerialEquals(Object x, Object y) {
1310	>	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1311	>	}
1312	>
1313	>	void assertNotSerialEquals(Object x, Object y) {
1314	>	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1315	>	}
1316	>
1317	>	byte[] serialBytes(Object o) {
1318	>	try {
1319	>	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1320	>	ObjectOutputStream oos = new ObjectOutputStream(bos);
1321	>	oos.writeObject(o);
1322	>	oos.flush();
1323	>	oos.close();
1324	>	return bos.toByteArray();
1325	>	} catch (Throwable t) {
1326	>	threadUnexpectedException(t);
1327	>	return new byte[0];
1328	>	}
1329	>	}
1330	>
1331	>	@SuppressWarnings("unchecked")
1332	>	<T> T serialClone(T o) {
1333	>	try {
1334	>	ObjectInputStream ois = new ObjectInputStream
1335	>	(new ByteArrayInputStream(serialBytes(o)));
1336	>	T clone = (T) ois.readObject();
1337	>	assertSame(o.getClass(), clone.getClass());
1338	>	return clone;
1339	>	} catch (Throwable t) {
1340	>	threadUnexpectedException(t);
1341	>	return null;
1342	>	}
1343	>	}
1344		}

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