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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.2 by dl, Sat Sep 20 00:31:57 2003 UTC vs.
Revision 1.115 by jsr166, Wed May 14 21:06:38 2014 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.util.regex.Pattern;
30	>	import java.security.CodeSource;
31	>	import java.security.Permission;
32	>	import java.security.PermissionCollection;
33	>	import java.security.Permissions;
34	>	import java.security.Policy;
35	>	import java.security.ProtectionDomain;
36	>	import java.security.SecurityPermission;
37
38		/**
39	<	* Base class for JSR166 Junit TCK tests.  Defines some constants and
40	<	* utility methods, as well as a simple framework for helping to make
41	<	* sure that assertions failing in generated threads cause the
42	<	* associated test that generated them to itself fail (which JUnit doe
43	<	* not otherwise arrange).  The rules for creating such tests are:
39	>	* Base class for JSR166 Junit TCK tests.  Defines some constants,
40	>	* utility methods and classes, as well as a simple framework for
41	>	* helping to make sure that assertions failing in generated threads
42	>	* cause the associated test that generated them to itself fail (which
43	>	* JUnit does not otherwise arrange).  The rules for creating such
44	>	* tests are:
45		*
46		* <ol>
47		*
48		* <li> All assertions in code running in generated threads must use
49	<	* the forms {@link threadFail} , {@link threadAssertTrue} {@link
50	<	* threadAssertEquals}, or {@link threadAssertNull}, (not
51	<	* <tt>fail</tt>, <tt>assertTrue</tt>, etc.) It is OK (but not
49	>	* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link
50	>	* #threadAssertEquals}, or {@link #threadAssertNull}, (not
51	>	* {@code fail}, {@code assertTrue}, etc.) It is OK (but not
52		* particularly recommended) for other code to use these forms too.
53		* Only the most typically used JUnit assertion methods are defined
54		* this way, but enough to live with.</li>
55		*
56	<	* <li> If you override {@link setUp} or {@link tearDown}, make sure
57	<	* to invoke <tt>super.setUp</tt> and <tt>super.tearDown</tt> within
56	>	* <li> If you override {@link #setUp} or {@link #tearDown}, make sure
57	>	* to invoke {@code super.setUp} and {@code super.tearDown} within
58		* them. These methods are used to clear and check for thread
59		* assertion failures.</li>
60		*
61	<	* <li>All delays and timeouts must use one of the constants {@link
62	<	* SHORT_DELAY_MS}, {@link SMALL_DELAY_MS}, {@link MEDIUM_DELAY_MS},
63	<	* {@link LONG_DELAY_MS}. The idea here is that a SHORT is always
64	<	* discriminatable from zero time, and always allows enough time for
65	<	* the small amounts of computation (creating a thread, calling a few
61	>	* <li>All delays and timeouts must use one of the constants {@code
62	>	* SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS},
63	>	* {@code LONG_DELAY_MS}. The idea here is that a SHORT is always
64	>	* discriminable from zero time, and always allows enough time for the
65	>	* small amounts of computation (creating a thread, calling a few
66		* methods, etc) needed to reach a timeout point. Similarly, a SMALL
67		* is always discriminable as larger than SHORT and smaller than
68		* MEDIUM.  And so on. These constants are set to conservative values,
69		* but even so, if there is ever any doubt, they can all be increased
70	<	* in one spot to rerun tests on slower platforms</li>
70	>	* in one spot to rerun tests on slower platforms.</li>
71		*
72		* <li> All threads generated must be joined inside each test case
73	<	* method (or <tt>fail</tt> to do so) before returning from the
74	<	* method. The {@link joinPool} method can be used to do this when
73	>	* method (or {@code fail} to do so) before returning from the
74	>	* method. The {@code joinPool} method can be used to do this when
75		* using Executors.</li>
76		*
77		* </ol>
78	+	*
79	+	* <p><b>Other notes</b>
80	+	* <ul>
81	+	*
82	+	* <li> Usually, there is one testcase method per JSR166 method
83	+	* covering "normal" operation, and then as many exception-testing
84	+	* methods as there are exceptions the method can throw. Sometimes
85	+	* there are multiple tests per JSR166 method when the different
86	+	* "normal" behaviors differ significantly. And sometimes testcases
87	+	* cover multiple methods when they cannot be tested in
88	+	* isolation.</li>
89	+	*
90	+	* <li> The documentation style for testcases is to provide as javadoc
91	+	* a simple sentence or two describing the property that the testcase
92	+	* method purports to test. The javadocs do not say anything about how
93	+	* the property is tested. To find out, read the code.</li>
94	+	*
95	+	* <li> These tests are "conformance tests", and do not attempt to
96	+	* test throughput, latency, scalability or other performance factors
97	+	* (see the separate "jtreg" tests for a set intended to check these
98	+	* for the most central aspects of functionality.) So, most tests use
99	+	* the smallest sensible numbers of threads, collection sizes, etc
100	+	* needed to check basic conformance.</li>
101	+	*
102	+	* <li>The test classes currently do not declare inclusion in
103	+	* any particular package to simplify things for people integrating
104	+	* them in TCK test suites.</li>
105	+	*
106	+	* <li> As a convenience, the {@code main} of this class (JSR166TestCase)
107	+	* runs all JSR166 unit tests.</li>
108	+	*
109	+	* </ul>
110		*/
111		public class JSR166TestCase extends TestCase {
112	+	private static final boolean useSecurityManager =
113	+	Boolean.getBoolean("jsr166.useSecurityManager");
114	+
115	+	protected static final boolean expensiveTests =
116	+	Boolean.getBoolean("jsr166.expensiveTests");
117	+
118	+	/**
119	+	* If true, report on stdout all "slow" tests, that is, ones that
120	+	* take more than profileThreshold milliseconds to execute.
121	+	*/
122	+	private static final boolean profileTests =
123	+	Boolean.getBoolean("jsr166.profileTests");
124	+
125	+	/**
126	+	* The number of milliseconds that tests are permitted for
127	+	* execution without being reported, when profileTests is set.
128	+	*/
129	+	private static final long profileThreshold =
130	+	Long.getLong("jsr166.profileThreshold", 100);
131	+
132	+	/**
133	+	* The number of repetitions per test (for tickling rare bugs).
134	+	*/
135	+	private static final int runsPerTest =
136	+	Integer.getInteger("jsr166.runsPerTest", 1);
137	+
138	+	/**
139	+	* A filter for tests to run, matching strings of the form
140	+	* methodName(className), e.g. "testInvokeAll5(ForkJoinPoolTest)"
141	+	* Usefully combined with jsr166.runsPerTest.
142	+	*/
143	+	private static final Pattern methodFilter = methodFilter();
144	+
145	+	private static Pattern methodFilter() {
146	+	String regex = System.getProperty("jsr166.methodFilter");
147	+	return (regex == null) ? null : Pattern.compile(regex);
148	+	}
149	+
150	+	protected void runTest() throws Throwable {
151	+	if (methodFilter == null
152	+	|| methodFilter.matcher(toString()).find()) {
153	+	for (int i = 0; i < runsPerTest; i++) {
154	+	if (profileTests)
155	+	runTestProfiled();
156	+	else
157	+	super.runTest();
158	+	}
159	+	}
160	+	}
161	+
162	+	protected void runTestProfiled() throws Throwable {
163	+	long t0 = System.nanoTime();
164	+	try {
165	+	super.runTest();
166	+	} finally {
167	+	long elapsedMillis =
168	+	(System.nanoTime() - t0) / (1000L * 1000L);
169	+	if (elapsedMillis >= profileThreshold)
170	+	System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
171	+	}
172	+	}
173	+
174	+	/**
175	+	* Runs all JSR166 unit tests using junit.textui.TestRunner.
176	+	* Optional command line arg provides the number of iterations to
177	+	* repeat running the tests.
178	+	*/
179	+	public static void main(String[] args) {
180	+	if (useSecurityManager) {
181	+	System.err.println("Setting a permissive security manager");
182	+	Policy.setPolicy(permissivePolicy());
183	+	System.setSecurityManager(new SecurityManager());
184	+	}
185	+	int iters = (args.length == 0) ? 1 : Integer.parseInt(args[0]);
186	+
187	+	Test s = suite();
188	+	for (int i = 0; i < iters; ++i) {
189	+	junit.textui.TestRunner.run(s);
190	+	System.gc();
191	+	System.runFinalization();
192	+	}
193	+	System.exit(0);
194	+	}
195	+
196	+	public static TestSuite newTestSuite(Object... suiteOrClasses) {
197	+	TestSuite suite = new TestSuite();
198	+	for (Object suiteOrClass : suiteOrClasses) {
199	+	if (suiteOrClass instanceof TestSuite)
200	+	suite.addTest((TestSuite) suiteOrClass);
201	+	else if (suiteOrClass instanceof Class)
202	+	suite.addTest(new TestSuite((Class<?>) suiteOrClass));
203	+	else
204	+	throw new ClassCastException("not a test suite or class");
205	+	}
206	+	return suite;
207	+	}
208	+
209	+	public static void addNamedTestClasses(TestSuite suite,
210	+	String... testClassNames) {
211	+	for (String testClassName : testClassNames) {
212	+	try {
213	+	Class<?> testClass = Class.forName(testClassName);
214	+	Method m = testClass.getDeclaredMethod("suite",
215	+	new Class<?>[0]);
216	+	suite.addTest(newTestSuite((Test)m.invoke(null)));
217	+	} catch (Exception e) {
218	+	throw new Error("Missing test class", e);
219	+	}
220	+	}
221	+	}
222	+
223	+	public static final double JAVA_CLASS_VERSION;
224	+	public static final String JAVA_SPECIFICATION_VERSION;
225	+	static {
226	+	try {
227	+	JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
228	+	new java.security.PrivilegedAction<Double>() {
229	+	public Double run() {
230	+	return Double.valueOf(System.getProperty("java.class.version"));}});
231	+	JAVA_SPECIFICATION_VERSION = java.security.AccessController.doPrivileged(
232	+	new java.security.PrivilegedAction<String>() {
233	+	public String run() {
234	+	return System.getProperty("java.specification.version");}});
235	+	} catch (Throwable t) {
236	+	throw new Error(t);
237	+	}
238	+	}
239	+
240	+	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
241	+	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
242	+	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
243	+	public static boolean atLeastJava9() {
244	+	// As of 2014-05, java9 still uses 52.0 class file version
245	+	return JAVA_SPECIFICATION_VERSION.startsWith("1.9");
246	+	}
247	+
248	+	/**
249	+	* Collects all JSR166 unit tests as one suite.
250	+	*/
251	+	public static Test suite() {
252	+	// Java7+ test classes
253	+	TestSuite suite = newTestSuite(
254	+	ForkJoinPoolTest.suite(),
255	+	ForkJoinTaskTest.suite(),
256	+	RecursiveActionTest.suite(),
257	+	RecursiveTaskTest.suite(),
258	+	LinkedTransferQueueTest.suite(),
259	+	PhaserTest.suite(),
260	+	ThreadLocalRandomTest.suite(),
261	+	AbstractExecutorServiceTest.suite(),
262	+	AbstractQueueTest.suite(),
263	+	AbstractQueuedSynchronizerTest.suite(),
264	+	AbstractQueuedLongSynchronizerTest.suite(),
265	+	ArrayBlockingQueueTest.suite(),
266	+	ArrayDequeTest.suite(),
267	+	AtomicBooleanTest.suite(),
268	+	AtomicIntegerArrayTest.suite(),
269	+	AtomicIntegerFieldUpdaterTest.suite(),
270	+	AtomicIntegerTest.suite(),
271	+	AtomicLongArrayTest.suite(),
272	+	AtomicLongFieldUpdaterTest.suite(),
273	+	AtomicLongTest.suite(),
274	+	AtomicMarkableReferenceTest.suite(),
275	+	AtomicReferenceArrayTest.suite(),
276	+	AtomicReferenceFieldUpdaterTest.suite(),
277	+	AtomicReferenceTest.suite(),
278	+	AtomicStampedReferenceTest.suite(),
279	+	ConcurrentHashMapTest.suite(),
280	+	ConcurrentLinkedDequeTest.suite(),
281	+	ConcurrentLinkedQueueTest.suite(),
282	+	ConcurrentSkipListMapTest.suite(),
283	+	ConcurrentSkipListSubMapTest.suite(),
284	+	ConcurrentSkipListSetTest.suite(),
285	+	ConcurrentSkipListSubSetTest.suite(),
286	+	CopyOnWriteArrayListTest.suite(),
287	+	CopyOnWriteArraySetTest.suite(),
288	+	CountDownLatchTest.suite(),
289	+	CyclicBarrierTest.suite(),
290	+	DelayQueueTest.suite(),
291	+	EntryTest.suite(),
292	+	ExchangerTest.suite(),
293	+	ExecutorsTest.suite(),
294	+	ExecutorCompletionServiceTest.suite(),
295	+	FutureTaskTest.suite(),
296	+	LinkedBlockingDequeTest.suite(),
297	+	LinkedBlockingQueueTest.suite(),
298	+	LinkedListTest.suite(),
299	+	LockSupportTest.suite(),
300	+	PriorityBlockingQueueTest.suite(),
301	+	PriorityQueueTest.suite(),
302	+	ReentrantLockTest.suite(),
303	+	ReentrantReadWriteLockTest.suite(),
304	+	ScheduledExecutorTest.suite(),
305	+	ScheduledExecutorSubclassTest.suite(),
306	+	SemaphoreTest.suite(),
307	+	SynchronousQueueTest.suite(),
308	+	SystemTest.suite(),
309	+	ThreadLocalTest.suite(),
310	+	ThreadPoolExecutorTest.suite(),
311	+	ThreadPoolExecutorSubclassTest.suite(),
312	+	ThreadTest.suite(),
313	+	TimeUnitTest.suite(),
314	+	TreeMapTest.suite(),
315	+	TreeSetTest.suite(),
316	+	TreeSubMapTest.suite(),
317	+	TreeSubSetTest.suite());
318	+
319	+	// Java8+ test classes
320	+	if (atLeastJava8()) {
321	+	String[] java8TestClassNames = {
322	+	"Atomic8Test",
323	+	"CompletableFutureTest",
324	+	"ConcurrentHashMap8Test",
325	+	"CountedCompleterTest",
326	+	"DoubleAccumulatorTest",
327	+	"DoubleAdderTest",
328	+	"ForkJoinPool8Test",
329	+	"ForkJoinTask8Test",
330	+	"LongAccumulatorTest",
331	+	"LongAdderTest",
332	+	"SplittableRandomTest",
333	+	"StampedLockTest",
334	+	"ThreadLocalRandom8Test",
335	+	};
336	+	addNamedTestClasses(suite, java8TestClassNames);
337	+	}
338	+
339	+	// Java9+ test classes
340	+	if (atLeastJava9()) {
341	+	String[] java9TestClassNames = {
342	+	"ThreadPoolExecutor9Test",
343	+	};
344	+	addNamedTestClasses(suite, java9TestClassNames);
345	+	}
346	+
347	+	return suite;
348	+	}
349	+
350	+	// Delays for timing-dependent tests, in milliseconds.
351
352		public static long SHORT_DELAY_MS;
353		public static long SMALL_DELAY_MS;
354		public static long MEDIUM_DELAY_MS;
355		public static long LONG_DELAY_MS;
356
61	–
357		/**
358	<	* Return the shortest timed delay. This could
359	<	* be reimplmented to use for example a Property.
360	<	*/
358	>	* Returns the shortest timed delay. This could
359	>	* be reimplemented to use for example a Property.
360	>	*/
361		protected long getShortDelay() {
362		return 50;
363		}
364
70	–
365		/**
366	<	* Set delays as multiples fo SHORT_DELAY.
366	>	* Sets delays as multiples of SHORT_DELAY.
367		*/
368	<	protected  void setDelays() {
368	>	protected void setDelays() {
369		SHORT_DELAY_MS = getShortDelay();
370	<	SMALL_DELAY_MS = SHORT_DELAY_MS * 5;
370	>	SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
371		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
372	<	LONG_DELAY_MS = SHORT_DELAY_MS * 50;
372	>	LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
373	>	}
374	>
375	>	/**
376	>	* Returns a timeout in milliseconds to be used in tests that
377	>	* verify that operations block or time out.
378	>	*/
379	>	long timeoutMillis() {
380	>	return SHORT_DELAY_MS / 4;
381	>	}
382	>
383	>	/**
384	>	* Returns a new Date instance representing a time delayMillis
385	>	* milliseconds in the future.
386	>	*/
387	>	Date delayedDate(long delayMillis) {
388	>	return new Date(System.currentTimeMillis() + delayMillis);
389		}
390
391		/**
392	<	* Flag set true if any threadAssert methods fail
392	>	* The first exception encountered if any threadAssertXXX method fails.
393		*/
394	<	protected volatile boolean threadFailed;
394	>	private final AtomicReference<Throwable> threadFailure
395	>	= new AtomicReference<Throwable>(null);
396
397		/**
398	<	* Initialize test to indicat that no thread assertions have failed
398	>	* Records an exception so that it can be rethrown later in the test
399	>	* harness thread, triggering a test case failure.  Only the first
400	>	* failure is recorded; subsequent calls to this method from within
401	>	* the same test have no effect.
402		*/
403	<	public void setUp() {
403	>	public void threadRecordFailure(Throwable t) {
404	>	threadFailure.compareAndSet(null, t);
405	>	}
406	>
407	>	public void setUp() {
408		setDelays();
91	–	threadFailed = false;
409		}
410
411		/**
412	<	* Trigger test case failure if any thread assertions have failed
412	>	* Extra checks that get done for all test cases.
413	>	*
414	>	* Triggers test case failure if any thread assertions have failed,
415	>	* by rethrowing, in the test harness thread, any exception recorded
416	>	* earlier by threadRecordFailure.
417	>	*
418	>	* Triggers test case failure if interrupt status is set in the main thread.
419	>	*/
420	>	public void tearDown() throws Exception {
421	>	Throwable t = threadFailure.getAndSet(null);
422	>	if (t != null) {
423	>	if (t instanceof Error)
424	>	throw (Error) t;
425	>	else if (t instanceof RuntimeException)
426	>	throw (RuntimeException) t;
427	>	else if (t instanceof Exception)
428	>	throw (Exception) t;
429	>	else {
430	>	AssertionFailedError afe =
431	>	new AssertionFailedError(t.toString());
432	>	afe.initCause(t);
433	>	throw afe;
434	>	}
435	>	}
436	>
437	>	if (Thread.interrupted())
438	>	throw new AssertionFailedError("interrupt status set in main thread");
439	>
440	>	checkForkJoinPoolThreadLeaks();
441	>	}
442	>
443	>	/**
444	>	* Find missing try { ... } finally { joinPool(e); }
445		*/
446	<	public void tearDown() {
447	<	assertFalse(threadFailed);
446	>	void checkForkJoinPoolThreadLeaks() throws InterruptedException {
447	>	Thread[] survivors = new Thread[5];
448	>	int count = Thread.enumerate(survivors);
449	>	for (int i = 0; i < count; i++) {
450	>	Thread thread = survivors[i];
451	>	String name = thread.getName();
452	>	if (name.startsWith("ForkJoinPool-")) {
453	>	// give thread some time to terminate
454	>	thread.join(LONG_DELAY_MS);
455	>	if (!thread.isAlive()) continue;
456	>	thread.stop();
457	>	throw new AssertionFailedError
458	>	(String.format("Found leaked ForkJoinPool thread test=%s thread=%s%n",
459	>	toString(), name));
460	>	}
461	>	}
462		}
463
464	+	/**
465	+	* Just like fail(reason), but additionally recording (using
466	+	* threadRecordFailure) any AssertionFailedError thrown, so that
467	+	* the current testcase will fail.
468	+	*/
469		public void threadFail(String reason) {
470	<	threadFailed = true;
471	<	fail(reason);
470	>	try {
471	>	fail(reason);
472	>	} catch (AssertionFailedError t) {
473	>	threadRecordFailure(t);
474	>	fail(reason);
475	>	}
476		}
477
478	+	/**
479	+	* Just like assertTrue(b), but additionally recording (using
480	+	* threadRecordFailure) any AssertionFailedError thrown, so that
481	+	* the current testcase will fail.
482	+	*/
483		public void threadAssertTrue(boolean b) {
484	<	if (!b) {
108	<	threadFailed = true;
484	>	try {
485		assertTrue(b);
486	+	} catch (AssertionFailedError t) {
487	+	threadRecordFailure(t);
488	+	throw t;
489		}
490		}
491	+
492	+	/**
493	+	* Just like assertFalse(b), but additionally recording (using
494	+	* threadRecordFailure) any AssertionFailedError thrown, so that
495	+	* the current testcase will fail.
496	+	*/
497		public void threadAssertFalse(boolean b) {
498	<	if (b) {
114	<	threadFailed = true;
498	>	try {
499		assertFalse(b);
500	+	} catch (AssertionFailedError t) {
501	+	threadRecordFailure(t);
502	+	throw t;
503		}
504		}
505	+
506	+	/**
507	+	* Just like assertNull(x), but additionally recording (using
508	+	* threadRecordFailure) any AssertionFailedError thrown, so that
509	+	* the current testcase will fail.
510	+	*/
511		public void threadAssertNull(Object x) {
512	<	if (x != null) {
120	<	threadFailed = true;
512	>	try {
513		assertNull(x);
514	+	} catch (AssertionFailedError t) {
515	+	threadRecordFailure(t);
516	+	throw t;
517		}
518		}
519	+
520	+	/**
521	+	* Just like assertEquals(x, y), but additionally recording (using
522	+	* threadRecordFailure) any AssertionFailedError thrown, so that
523	+	* the current testcase will fail.
524	+	*/
525		public void threadAssertEquals(long x, long y) {
526	<	if (x != y) {
126	<	threadFailed = true;
526	>	try {
527		assertEquals(x, y);
528	+	} catch (AssertionFailedError t) {
529	+	threadRecordFailure(t);
530	+	throw t;
531		}
532		}
533	+
534	+	/**
535	+	* Just like assertEquals(x, y), but additionally recording (using
536	+	* threadRecordFailure) any AssertionFailedError thrown, so that
537	+	* the current testcase will fail.
538	+	*/
539		public void threadAssertEquals(Object x, Object y) {
540	<	if (x != y && (x == null || !x.equals(y))) {
132	<	threadFailed = true;
540	>	try {
541		assertEquals(x, y);
542	+	} catch (AssertionFailedError t) {
543	+	threadRecordFailure(t);
544	+	throw t;
545	+	} catch (Throwable t) {
546	+	threadUnexpectedException(t);
547		}
548		}
549
550		/**
551	<	* Wait out termination of a thread pool or fail doing so
551	>	* Just like assertSame(x, y), but additionally recording (using
552	>	* threadRecordFailure) any AssertionFailedError thrown, so that
553	>	* the current testcase will fail.
554		*/
555	<	public void joinPool(ExecutorService exec) {
555	>	public void threadAssertSame(Object x, Object y) {
556	>	try {
557	>	assertSame(x, y);
558	>	} catch (AssertionFailedError t) {
559	>	threadRecordFailure(t);
560	>	throw t;
561	>	}
562	>	}
563	>
564	>	/**
565	>	* Calls threadFail with message "should throw exception".
566	>	*/
567	>	public void threadShouldThrow() {
568	>	threadFail("should throw exception");
569	>	}
570	>
571	>	/**
572	>	* Calls threadFail with message "should throw" + exceptionName.
573	>	*/
574	>	public void threadShouldThrow(String exceptionName) {
575	>	threadFail("should throw " + exceptionName);
576	>	}
577	>
578	>	/**
579	>	* Records the given exception using {@link #threadRecordFailure},
580	>	* then rethrows the exception, wrapping it in an
581	>	* AssertionFailedError if necessary.
582	>	*/
583	>	public void threadUnexpectedException(Throwable t) {
584	>	threadRecordFailure(t);
585	>	t.printStackTrace();
586	>	if (t instanceof RuntimeException)
587	>	throw (RuntimeException) t;
588	>	else if (t instanceof Error)
589	>	throw (Error) t;
590	>	else {
591	>	AssertionFailedError afe =
592	>	new AssertionFailedError("unexpected exception: " + t);
593	>	afe.initCause(t);
594	>	throw afe;
595	>	}
596	>	}
597	>
598	>	/**
599	>	* Delays, via Thread.sleep, for the given millisecond delay, but
600	>	* if the sleep is shorter than specified, may re-sleep or yield
601	>	* until time elapses.
602	>	*/
603	>	static void delay(long millis) throws InterruptedException {
604	>	long startTime = System.nanoTime();
605	>	long ns = millis * 1000 * 1000;
606	>	for (;;) {
607	>	if (millis > 0L)
608	>	Thread.sleep(millis);
609	>	else // too short to sleep
610	>	Thread.yield();
611	>	long d = ns - (System.nanoTime() - startTime);
612	>	if (d > 0L)
613	>	millis = d / (1000 * 1000);
614	>	else
615	>	break;
616	>	}
617	>	}
618	>
619	>	/**
620	>	* Waits out termination of a thread pool or fails doing so.
621	>	*/
622	>	void joinPool(ExecutorService exec) {
623		try {
624		exec.shutdown();
625	<	assertTrue(exec.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
626	<	} catch(InterruptedException ie) {
627	<	fail("unexpected exception");
625	>	assertTrue("ExecutorService did not terminate in a timely manner",
626	>	exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS));
627	>	} catch (SecurityException ok) {
628	>	// Allowed in case test doesn't have privs
629	>	} catch (InterruptedException ie) {
630	>	fail("Unexpected InterruptedException");
631		}
632		}
633
634	+	/**
635	+	* A debugging tool to print all stack traces, as jstack does.
636	+	*/
637	+	static void printAllStackTraces() {
638	+	for (ThreadInfo info :
639	+	ManagementFactory.getThreadMXBean()
640	+	.dumpAllThreads(true, true))
641	+	System.err.print(info);
642	+	}
643	+
644	+	/**
645	+	* Checks that thread does not terminate within the default
646	+	* millisecond delay of {@code timeoutMillis()}.
647	+	*/
648	+	void assertThreadStaysAlive(Thread thread) {
649	+	assertThreadStaysAlive(thread, timeoutMillis());
650	+	}
651
652	+	/**
653	+	* Checks that thread does not terminate within the given millisecond delay.
654	+	*/
655	+	void assertThreadStaysAlive(Thread thread, long millis) {
656	+	try {
657	+	// No need to optimize the failing case via Thread.join.
658	+	delay(millis);
659	+	assertTrue(thread.isAlive());
660	+	} catch (InterruptedException ie) {
661	+	fail("Unexpected InterruptedException");
662	+	}
663	+	}
664	+
665	+	/**
666	+	* Checks that the threads do not terminate within the default
667	+	* millisecond delay of {@code timeoutMillis()}.
668	+	*/
669	+	void assertThreadsStayAlive(Thread... threads) {
670	+	assertThreadsStayAlive(timeoutMillis(), threads);
671	+	}
672	+
673	+	/**
674	+	* Checks that the threads do not terminate within the given millisecond delay.
675	+	*/
676	+	void assertThreadsStayAlive(long millis, Thread... threads) {
677	+	try {
678	+	// No need to optimize the failing case via Thread.join.
679	+	delay(millis);
680	+	for (Thread thread : threads)
681	+	assertTrue(thread.isAlive());
682	+	} catch (InterruptedException ie) {
683	+	fail("Unexpected InterruptedException");
684	+	}
685	+	}
686	+
687	+	/**
688	+	* Checks that future.get times out, with the default timeout of
689	+	* {@code timeoutMillis()}.
690	+	*/
691	+	void assertFutureTimesOut(Future future) {
692	+	assertFutureTimesOut(future, timeoutMillis());
693	+	}
694	+
695	+	/**
696	+	* Checks that future.get times out, with the given millisecond timeout.
697	+	*/
698	+	void assertFutureTimesOut(Future future, long timeoutMillis) {
699	+	long startTime = System.nanoTime();
700	+	try {
701	+	future.get(timeoutMillis, MILLISECONDS);
702	+	shouldThrow();
703	+	} catch (TimeoutException success) {
704	+	} catch (Exception e) {
705	+	threadUnexpectedException(e);
706	+	} finally { future.cancel(true); }
707	+	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
708	+	}
709	+
710	+	/**
711	+	* Fails with message "should throw exception".
712	+	*/
713	+	public void shouldThrow() {
714	+	fail("Should throw exception");
715	+	}
716	+
717	+	/**
718	+	* Fails with message "should throw " + exceptionName.
719	+	*/
720	+	public void shouldThrow(String exceptionName) {
721	+	fail("Should throw " + exceptionName);
722	+	}
723
724		/**
725		* The number of elements to place in collections, arrays, etc.
#	Line 155 | Line 728 | public class JSR166TestCase extends Test
728
729		// Some convenient Integer constants
730
731	<	public static final Integer zero = new Integer(0);
732	<	public static final Integer one = new Integer(1);
733	<	public static final Integer two = new Integer(2);
734	<	public static final Integer three  = new Integer(3);
731	>	public static final Integer zero  = new Integer(0);
732	>	public static final Integer one   = new Integer(1);
733	>	public static final Integer two   = new Integer(2);
734	>	public static final Integer three = new Integer(3);
735		public static final Integer four  = new Integer(4);
736		public static final Integer five  = new Integer(5);
737	<	public static final Integer six = new Integer(6);
737	>	public static final Integer six   = new Integer(6);
738		public static final Integer seven = new Integer(7);
739		public static final Integer eight = new Integer(8);
740	<	public static final Integer nine = new Integer(9);
740	>	public static final Integer nine  = new Integer(9);
741		public static final Integer m1  = new Integer(-1);
742		public static final Integer m2  = new Integer(-2);
743		public static final Integer m3  = new Integer(-3);
744	<	public static final Integer m4 = new Integer(-4);
745	<	public static final Integer m5 = new Integer(-5);
744	>	public static final Integer m4  = new Integer(-4);
745	>	public static final Integer m5  = new Integer(-5);
746	>	public static final Integer m6  = new Integer(-6);
747		public static final Integer m10 = new Integer(-10);
748
749	+	/**
750	+	* Runs Runnable r with a security policy that permits precisely
751	+	* the specified permissions.  If there is no current security
752	+	* manager, the runnable is run twice, both with and without a
753	+	* security manager.  We require that any security manager permit
754	+	* getPolicy/setPolicy.
755	+	*/
756	+	public void runWithPermissions(Runnable r, Permission... permissions) {
757	+	SecurityManager sm = System.getSecurityManager();
758	+	if (sm == null) {
759	+	r.run();
760	+	}
761	+	runWithSecurityManagerWithPermissions(r, permissions);
762	+	}
763
764	<	// Some convenient Runnable classes
764	>	/**
765	>	* Runs Runnable r with a security policy that permits precisely
766	>	* the specified permissions.  If there is no current security
767	>	* manager, a temporary one is set for the duration of the
768	>	* Runnable.  We require that any security manager permit
769	>	* getPolicy/setPolicy.
770	>	*/
771	>	public void runWithSecurityManagerWithPermissions(Runnable r,
772	>	Permission... permissions) {
773	>	SecurityManager sm = System.getSecurityManager();
774	>	if (sm == null) {
775	>	Policy savedPolicy = Policy.getPolicy();
776	>	try {
777	>	Policy.setPolicy(permissivePolicy());
778	>	System.setSecurityManager(new SecurityManager());
779	>	runWithSecurityManagerWithPermissions(r, permissions);
780	>	} finally {
781	>	System.setSecurityManager(null);
782	>	Policy.setPolicy(savedPolicy);
783	>	}
784	>	} else {
785	>	Policy savedPolicy = Policy.getPolicy();
786	>	AdjustablePolicy policy = new AdjustablePolicy(permissions);
787	>	Policy.setPolicy(policy);
788
789	<	public static class NoOpRunnable implements Runnable {
790	<	public void run() {}
789	>	try {
790	>	r.run();
791	>	} finally {
792	>	policy.addPermission(new SecurityPermission("setPolicy"));
793	>	Policy.setPolicy(savedPolicy);
794	>	}
795	>	}
796		}
797
798	<	public static class NoOpCallable implements Callable {
799	<	public Object call() { return Boolean.TRUE; }
798	>	/**
799	>	* Runs a runnable without any permissions.
800	>	*/
801	>	public void runWithoutPermissions(Runnable r) {
802	>	runWithPermissions(r);
803		}
804
805	<	public class ShortRunnable implements Runnable {
806	<	public void run() {
807	<	try {
808	<	Thread.sleep(SHORT_DELAY_MS);
805	>	/**
806	>	* A security policy where new permissions can be dynamically added
807	>	* or all cleared.
808	>	*/
809	>	public static class AdjustablePolicy extends java.security.Policy {
810	>	Permissions perms = new Permissions();
811	>	AdjustablePolicy(Permission... permissions) {
812	>	for (Permission permission : permissions)
813	>	perms.add(permission);
814	>	}
815	>	void addPermission(Permission perm) { perms.add(perm); }
816	>	void clearPermissions() { perms = new Permissions(); }
817	>	public PermissionCollection getPermissions(CodeSource cs) {
818	>	return perms;
819	>	}
820	>	public PermissionCollection getPermissions(ProtectionDomain pd) {
821	>	return perms;
822	>	}
823	>	public boolean implies(ProtectionDomain pd, Permission p) {
824	>	return perms.implies(p);
825	>	}
826	>	public void refresh() {}
827	>	public String toString() {
828	>	List<Permission> ps = new ArrayList<Permission>();
829	>	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
830	>	ps.add(e.nextElement());
831	>	return "AdjustablePolicy with permissions " + ps;
832	>	}
833	>	}
834	>
835	>	/**
836	>	* Returns a policy containing all the permissions we ever need.
837	>	*/
838	>	public static Policy permissivePolicy() {
839	>	return new AdjustablePolicy
840	>	// Permissions j.u.c. needs directly
841	>	(new RuntimePermission("modifyThread"),
842	>	new RuntimePermission("getClassLoader"),
843	>	new RuntimePermission("setContextClassLoader"),
844	>	// Permissions needed to change permissions!
845	>	new SecurityPermission("getPolicy"),
846	>	new SecurityPermission("setPolicy"),
847	>	new RuntimePermission("setSecurityManager"),
848	>	// Permissions needed by the junit test harness
849	>	new RuntimePermission("accessDeclaredMembers"),
850	>	new PropertyPermission("*", "read"),
851	>	new java.io.FilePermission("<<ALL FILES>>", "read"));
852	>	}
853	>
854	>	/**
855	>	* Sleeps until the given time has elapsed.
856	>	* Throws AssertionFailedError if interrupted.
857	>	*/
858	>	void sleep(long millis) {
859	>	try {
860	>	delay(millis);
861	>	} catch (InterruptedException ie) {
862	>	AssertionFailedError afe =
863	>	new AssertionFailedError("Unexpected InterruptedException");
864	>	afe.initCause(ie);
865	>	throw afe;
866	>	}
867	>	}
868	>
869	>	/**
870	>	* Spin-waits up to the specified number of milliseconds for the given
871	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
872	>	*/
873	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
874	>	long startTime = System.nanoTime();
875	>	for (;;) {
876	>	Thread.State s = thread.getState();
877	>	if (s == Thread.State.BLOCKED ||
878	>	s == Thread.State.WAITING ||
879	>	s == Thread.State.TIMED_WAITING)
880	>	return;
881	>	else if (s == Thread.State.TERMINATED)
882	>	fail("Unexpected thread termination");
883	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
884	>	threadAssertTrue(thread.isAlive());
885	>	return;
886		}
887	<	catch(Exception e) {
888	<	threadFail("unexpectedException");
887	>	Thread.yield();
888	>	}
889	>	}
890	>
891	>	/**
892	>	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
893	>	* state: BLOCKED, WAITING, or TIMED_WAITING.
894	>	*/
895	>	void waitForThreadToEnterWaitState(Thread thread) {
896	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
897	>	}
898	>
899	>	/**
900	>	* Returns the number of milliseconds since time given by
901	>	* startNanoTime, which must have been previously returned from a
902	>	* call to {@link System.nanoTime()}.
903	>	*/
904	>	long millisElapsedSince(long startNanoTime) {
905	>	return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
906	>	}
907	>
908	>	/**
909	>	* Returns a new started daemon Thread running the given runnable.
910	>	*/
911	>	Thread newStartedThread(Runnable runnable) {
912	>	Thread t = new Thread(runnable);
913	>	t.setDaemon(true);
914	>	t.start();
915	>	return t;
916	>	}
917	>
918	>	/**
919	>	* Waits for the specified time (in milliseconds) for the thread
920	>	* to terminate (using {@link Thread#join(long)}), else interrupts
921	>	* the thread (in the hope that it may terminate later) and fails.
922	>	*/
923	>	void awaitTermination(Thread t, long timeoutMillis) {
924	>	try {
925	>	t.join(timeoutMillis);
926	>	} catch (InterruptedException ie) {
927	>	threadUnexpectedException(ie);
928	>	} finally {
929	>	if (t.getState() != Thread.State.TERMINATED) {
930	>	t.interrupt();
931	>	fail("Test timed out");
932		}
933		}
934		}
935
936	<	public class ShortInterruptedRunnable implements Runnable {
937	<	public void run() {
936	>	/**
937	>	* Waits for LONG_DELAY_MS milliseconds for the thread to
938	>	* terminate (using {@link Thread#join(long)}), else interrupts
939	>	* the thread (in the hope that it may terminate later) and fails.
940	>	*/
941	>	void awaitTermination(Thread t) {
942	>	awaitTermination(t, LONG_DELAY_MS);
943	>	}
944	>
945	>	// Some convenient Runnable classes
946	>
947	>	public abstract class CheckedRunnable implements Runnable {
948	>	protected abstract void realRun() throws Throwable;
949	>
950	>	public final void run() {
951		try {
952	<	Thread.sleep(SHORT_DELAY_MS);
953	<	threadFail("should throw IE");
952	>	realRun();
953	>	} catch (Throwable t) {
954	>	threadUnexpectedException(t);
955		}
956	<	catch(InterruptedException success) {
956	>	}
957	>	}
958	>
959	>	public abstract class RunnableShouldThrow implements Runnable {
960	>	protected abstract void realRun() throws Throwable;
961	>
962	>	final Class<?> exceptionClass;
963	>
964	>	<T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) {
965	>	this.exceptionClass = exceptionClass;
966	>	}
967	>
968	>	public final void run() {
969	>	try {
970	>	realRun();
971	>	threadShouldThrow(exceptionClass.getSimpleName());
972	>	} catch (Throwable t) {
973	>	if (! exceptionClass.isInstance(t))
974	>	threadUnexpectedException(t);
975		}
976		}
977		}
978
979	<	public class SmallRunnable implements Runnable {
980	<	public void run() {
979	>	public abstract class ThreadShouldThrow extends Thread {
980	>	protected abstract void realRun() throws Throwable;
981	>
982	>	final Class<?> exceptionClass;
983	>
984	>	<T extends Throwable> ThreadShouldThrow(Class<T> exceptionClass) {
985	>	this.exceptionClass = exceptionClass;
986	>	}
987	>
988	>	public final void run() {
989		try {
990	<	Thread.sleep(SMALL_DELAY_MS);
990	>	realRun();
991	>	threadShouldThrow(exceptionClass.getSimpleName());
992	>	} catch (Throwable t) {
993	>	if (! exceptionClass.isInstance(t))
994	>	threadUnexpectedException(t);
995		}
996	<	catch(Exception e) {
997	<	threadFail("unexpectedException");
996	>	}
997	>	}
998	>
999	>	public abstract class CheckedInterruptedRunnable implements Runnable {
1000	>	protected abstract void realRun() throws Throwable;
1001	>
1002	>	public final void run() {
1003	>	try {
1004	>	realRun();
1005	>	threadShouldThrow("InterruptedException");
1006	>	} catch (InterruptedException success) {
1007	>	threadAssertFalse(Thread.interrupted());
1008	>	} catch (Throwable t) {
1009	>	threadUnexpectedException(t);
1010		}
1011		}
1012		}
1013
1014	<	public class SmallCallable implements Callable {
1015	<	public Object call() {
1014	>	public abstract class CheckedCallable<T> implements Callable<T> {
1015	>	protected abstract T realCall() throws Throwable;
1016	>
1017	>	public final T call() {
1018		try {
1019	<	Thread.sleep(SMALL_DELAY_MS);
1019	>	return realCall();
1020	>	} catch (Throwable t) {
1021	>	threadUnexpectedException(t);
1022	>	return null;
1023		}
1024	<	catch(Exception e) {
1025	<	threadFail("unexpectedException");
1024	>	}
1025	>	}
1026	>
1027	>	public abstract class CheckedInterruptedCallable<T>
1028	>	implements Callable<T> {
1029	>	protected abstract T realCall() throws Throwable;
1030	>
1031	>	public final T call() {
1032	>	try {
1033	>	T result = realCall();
1034	>	threadShouldThrow("InterruptedException");
1035	>	return result;
1036	>	} catch (InterruptedException success) {
1037	>	threadAssertFalse(Thread.interrupted());
1038	>	} catch (Throwable t) {
1039	>	threadUnexpectedException(t);
1040		}
1041	+	return null;
1042	+	}
1043	+	}
1044	+
1045	+	public static class NoOpRunnable implements Runnable {
1046	+	public void run() {}
1047	+	}
1048	+
1049	+	public static class NoOpCallable implements Callable {
1050	+	public Object call() { return Boolean.TRUE; }
1051	+	}
1052	+
1053	+	public static final String TEST_STRING = "a test string";
1054	+
1055	+	public static class StringTask implements Callable<String> {
1056	+	public String call() { return TEST_STRING; }
1057	+	}
1058	+
1059	+	public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
1060	+	return new CheckedCallable<String>() {
1061	+	protected String realCall() {
1062	+	try {
1063	+	latch.await();
1064	+	} catch (InterruptedException quittingTime) {}
1065	+	return TEST_STRING;
1066	+	}};
1067	+	}
1068	+
1069	+	public Runnable awaiter(final CountDownLatch latch) {
1070	+	return new CheckedRunnable() {
1071	+	public void realRun() throws InterruptedException {
1072	+	await(latch);
1073	+	}};
1074	+	}
1075	+
1076	+	public void await(CountDownLatch latch) {
1077	+	try {
1078	+	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1079	+	} catch (Throwable t) {
1080	+	threadUnexpectedException(t);
1081	+	}
1082	+	}
1083	+
1084	+	public void await(Semaphore semaphore) {
1085	+	try {
1086	+	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1087	+	} catch (Throwable t) {
1088	+	threadUnexpectedException(t);
1089	+	}
1090	+	}
1091	+
1092	+	//     /**
1093	+	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1094	+	//      */
1095	+	//     public void await(AtomicBoolean flag) {
1096	+	//         await(flag, LONG_DELAY_MS);
1097	+	//     }
1098	+
1099	+	//     /**
1100	+	//      * Spin-waits up to the specified timeout until flag becomes true.
1101	+	//      */
1102	+	//     public void await(AtomicBoolean flag, long timeoutMillis) {
1103	+	//         long startTime = System.nanoTime();
1104	+	//         while (!flag.get()) {
1105	+	//             if (millisElapsedSince(startTime) > timeoutMillis)
1106	+	//                 throw new AssertionFailedError("timed out");
1107	+	//             Thread.yield();
1108	+	//         }
1109	+	//     }
1110	+
1111	+	public static class NPETask implements Callable<String> {
1112	+	public String call() { throw new NullPointerException(); }
1113	+	}
1114	+
1115	+	public static class CallableOne implements Callable<Integer> {
1116	+	public Integer call() { return one; }
1117	+	}
1118	+
1119	+	public class ShortRunnable extends CheckedRunnable {
1120	+	protected void realRun() throws Throwable {
1121	+	delay(SHORT_DELAY_MS);
1122	+	}
1123	+	}
1124	+
1125	+	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1126	+	protected void realRun() throws InterruptedException {
1127	+	delay(SHORT_DELAY_MS);
1128	+	}
1129	+	}
1130	+
1131	+	public class SmallRunnable extends CheckedRunnable {
1132	+	protected void realRun() throws Throwable {
1133	+	delay(SMALL_DELAY_MS);
1134	+	}
1135	+	}
1136	+
1137	+	public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1138	+	protected void realRun() {
1139	+	try {
1140	+	delay(SMALL_DELAY_MS);
1141	+	} catch (InterruptedException ok) {}
1142	+	}
1143	+	}
1144	+
1145	+	public class SmallCallable extends CheckedCallable {
1146	+	protected Object realCall() throws InterruptedException {
1147	+	delay(SMALL_DELAY_MS);
1148		return Boolean.TRUE;
1149		}
1150		}
1151
1152	<	public class SmallInterruptedRunnable implements Runnable {
1152	>	public class MediumRunnable extends CheckedRunnable {
1153	>	protected void realRun() throws Throwable {
1154	>	delay(MEDIUM_DELAY_MS);
1155	>	}
1156	>	}
1157	>
1158	>	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1159	>	protected void realRun() throws InterruptedException {
1160	>	delay(MEDIUM_DELAY_MS);
1161	>	}
1162	>	}
1163	>
1164	>	public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1165	>	return new CheckedRunnable() {
1166	>	protected void realRun() {
1167	>	try {
1168	>	delay(timeoutMillis);
1169	>	} catch (InterruptedException ok) {}
1170	>	}};
1171	>	}
1172	>
1173	>	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1174	>	protected void realRun() {
1175	>	try {
1176	>	delay(MEDIUM_DELAY_MS);
1177	>	} catch (InterruptedException ok) {}
1178	>	}
1179	>	}
1180	>
1181	>	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1182	>	protected void realRun() {
1183	>	try {
1184	>	delay(LONG_DELAY_MS);
1185	>	} catch (InterruptedException ok) {}
1186	>	}
1187	>	}
1188	>
1189	>	/**
1190	>	* For use as ThreadFactory in constructors
1191	>	*/
1192	>	public static class SimpleThreadFactory implements ThreadFactory {
1193	>	public Thread newThread(Runnable r) {
1194	>	return new Thread(r);
1195	>	}
1196	>	}
1197	>
1198	>	public interface TrackedRunnable extends Runnable {
1199	>	boolean isDone();
1200	>	}
1201	>
1202	>	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1203	>	return new TrackedRunnable() {
1204	>	private volatile boolean done = false;
1205	>	public boolean isDone() { return done; }
1206	>	public void run() {
1207	>	try {
1208	>	delay(timeoutMillis);
1209	>	done = true;
1210	>	} catch (InterruptedException ok) {}
1211	>	}
1212	>	};
1213	>	}
1214	>
1215	>	public static class TrackedShortRunnable implements Runnable {
1216	>	public volatile boolean done = false;
1217		public void run() {
1218		try {
1219	<	Thread.sleep(SMALL_DELAY_MS);
1220	<	threadFail("should throw IE");
1221	<	}
237	<	catch(InterruptedException success) {
238	<	}
1219	>	delay(SHORT_DELAY_MS);
1220	>	done = true;
1221	>	} catch (InterruptedException ok) {}
1222		}
1223		}
1224
1225	+	public static class TrackedSmallRunnable implements Runnable {
1226	+	public volatile boolean done = false;
1227	+	public void run() {
1228	+	try {
1229	+	delay(SMALL_DELAY_MS);
1230	+	done = true;
1231	+	} catch (InterruptedException ok) {}
1232	+	}
1233	+	}
1234
1235	<	public class MediumRunnable implements Runnable {
1235	>	public static class TrackedMediumRunnable implements Runnable {
1236	>	public volatile boolean done = false;
1237		public void run() {
1238		try {
1239	<	Thread.sleep(MEDIUM_DELAY_MS);
1240	<	}
1241	<	catch(Exception e) {
249	<	threadFail("unexpectedException");
250	<	}
1239	>	delay(MEDIUM_DELAY_MS);
1240	>	done = true;
1241	>	} catch (InterruptedException ok) {}
1242		}
1243		}
1244
1245	<	public class MediumInterruptedRunnable implements Runnable {
1245	>	public static class TrackedLongRunnable implements Runnable {
1246	>	public volatile boolean done = false;
1247		public void run() {
1248		try {
1249	<	Thread.sleep(MEDIUM_DELAY_MS);
1250	<	threadFail("should throw IE");
1249	>	delay(LONG_DELAY_MS);
1250	>	done = true;
1251	>	} catch (InterruptedException ok) {}
1252	>	}
1253	>	}
1254	>
1255	>	public static class TrackedNoOpRunnable implements Runnable {
1256	>	public volatile boolean done = false;
1257	>	public void run() {
1258	>	done = true;
1259	>	}
1260	>	}
1261	>
1262	>	public static class TrackedCallable implements Callable {
1263	>	public volatile boolean done = false;
1264	>	public Object call() {
1265	>	try {
1266	>	delay(SMALL_DELAY_MS);
1267	>	done = true;
1268	>	} catch (InterruptedException ok) {}
1269	>	return Boolean.TRUE;
1270	>	}
1271	>	}
1272	>
1273	>	/**
1274	>	* Analog of CheckedRunnable for RecursiveAction
1275	>	*/
1276	>	public abstract class CheckedRecursiveAction extends RecursiveAction {
1277	>	protected abstract void realCompute() throws Throwable;
1278	>
1279	>	@Override protected final void compute() {
1280	>	try {
1281	>	realCompute();
1282	>	} catch (Throwable t) {
1283	>	threadUnexpectedException(t);
1284		}
1285	<	catch(InterruptedException success) {
1285	>	}
1286	>	}
1287	>
1288	>	/**
1289	>	* Analog of CheckedCallable for RecursiveTask
1290	>	*/
1291	>	public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1292	>	protected abstract T realCompute() throws Throwable;
1293	>
1294	>	@Override protected final T compute() {
1295	>	try {
1296	>	return realCompute();
1297	>	} catch (Throwable t) {
1298	>	threadUnexpectedException(t);
1299	>	return null;
1300		}
1301		}
1302		}
1303
1304	<	public class MediumPossiblyInterruptedRunnable implements Runnable {
1305	<	public void run() {
1304	>	/**
1305	>	* For use as RejectedExecutionHandler in constructors
1306	>	*/
1307	>	public static class NoOpREHandler implements RejectedExecutionHandler {
1308	>	public void rejectedExecution(Runnable r,
1309	>	ThreadPoolExecutor executor) {}
1310	>	}
1311	>
1312	>	/**
1313	>	* A CyclicBarrier that uses timed await and fails with
1314	>	* AssertionFailedErrors instead of throwing checked exceptions.
1315	>	*/
1316	>	public class CheckedBarrier extends CyclicBarrier {
1317	>	public CheckedBarrier(int parties) { super(parties); }
1318	>
1319	>	public int await() {
1320		try {
1321	<	Thread.sleep(MEDIUM_DELAY_MS);
1321	>	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1322	>	} catch (TimeoutException e) {
1323	>	throw new AssertionFailedError("timed out");
1324	>	} catch (Exception e) {
1325	>	AssertionFailedError afe =
1326	>	new AssertionFailedError("Unexpected exception: " + e);
1327	>	afe.initCause(e);
1328	>	throw afe;
1329		}
1330	<	catch(InterruptedException success) {
1330	>	}
1331	>	}
1332	>
1333	>	void checkEmpty(BlockingQueue q) {
1334	>	try {
1335	>	assertTrue(q.isEmpty());
1336	>	assertEquals(0, q.size());
1337	>	assertNull(q.peek());
1338	>	assertNull(q.poll());
1339	>	assertNull(q.poll(0, MILLISECONDS));
1340	>	assertEquals(q.toString(), "[]");
1341	>	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1342	>	assertFalse(q.iterator().hasNext());
1343	>	try {
1344	>	q.element();
1345	>	shouldThrow();
1346	>	} catch (NoSuchElementException success) {}
1347	>	try {
1348	>	q.iterator().next();
1349	>	shouldThrow();
1350	>	} catch (NoSuchElementException success) {}
1351	>	try {
1352	>	q.remove();
1353	>	shouldThrow();
1354	>	} catch (NoSuchElementException success) {}
1355	>	} catch (InterruptedException ie) {
1356	>	threadUnexpectedException(ie);
1357	>	}
1358	>	}
1359	>
1360	>	void assertSerialEquals(Object x, Object y) {
1361	>	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1362	>	}
1363	>
1364	>	void assertNotSerialEquals(Object x, Object y) {
1365	>	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1366	>	}
1367	>
1368	>	byte[] serialBytes(Object o) {
1369	>	try {
1370	>	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1371	>	ObjectOutputStream oos = new ObjectOutputStream(bos);
1372	>	oos.writeObject(o);
1373	>	oos.flush();
1374	>	oos.close();
1375	>	return bos.toByteArray();
1376	>	} catch (Throwable t) {
1377	>	threadUnexpectedException(t);
1378	>	return new byte[0];
1379	>	}
1380	>	}
1381	>
1382	>	@SuppressWarnings("unchecked")
1383	>	<T> T serialClone(T o) {
1384	>	try {
1385	>	ObjectInputStream ois = new ObjectInputStream
1386	>	(new ByteArrayInputStream(serialBytes(o)));
1387	>	T clone = (T) ois.readObject();
1388	>	assertSame(o.getClass(), clone.getClass());
1389	>	return clone;
1390	>	} catch (Throwable t) {
1391	>	threadUnexpectedException(t);
1392	>	return null;
1393	>	}
1394	>	}
1395	>
1396	>	public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1397	>	Runnable... throwingActions) {
1398	>	for (Runnable throwingAction : throwingActions) {
1399	>	boolean threw = false;
1400	>	try { throwingAction.run(); }
1401	>	catch (Throwable t) {
1402	>	threw = true;
1403	>	if (!expectedExceptionClass.isInstance(t)) {
1404	>	AssertionFailedError afe =
1405	>	new AssertionFailedError
1406	>	("Expected " + expectedExceptionClass.getName() +
1407	>	", got " + t.getClass().getName());
1408	>	afe.initCause(t);
1409	>	threadUnexpectedException(afe);
1410	>	}
1411		}
1412	+	if (!threw)
1413	+	shouldThrow(expectedExceptionClass.getName());
1414		}
1415		}
274	–
1416		}

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