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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 1.113 by dl, Sun Sep 8 23:00:36 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	+	/**
132	+	* The number of repetitions per test (for tickling rare bugs).
133	+	*/
134	+	private static final int runsPerTest =
135	+	Integer.getInteger("jsr166.runsPerTest", 1);
136	+
137	+	protected void runTest() throws Throwable {
138	+	for (int i = 0; i < runsPerTest; i++) {
139	+	if (profileTests)
140	+	runTestProfiled();
141	+	else
142	+	super.runTest();
143	+	}
144	+	}
145	+
146	+	protected void runTestProfiled() throws Throwable {
147	+	long t0 = System.nanoTime();
148	+	try {
149	+	super.runTest();
150	+	} finally {
151	+	long elapsedMillis =
152	+	(System.nanoTime() - t0) / (1000L * 1000L);
153	+	if (elapsedMillis >= profileThreshold)
154	+	System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
155	+	}
156	+	}
157	+
158	+	/**
159	+	* Runs all JSR166 unit tests using junit.textui.TestRunner.
160	+	* Optional command line arg provides the number of iterations to
161	+	* repeat running the tests.
162	+	*/
163	+	public static void main(String[] args) {
164	+	if (useSecurityManager) {
165	+	System.err.println("Setting a permissive security manager");
166	+	Policy.setPolicy(permissivePolicy());
167	+	System.setSecurityManager(new SecurityManager());
168	+	}
169	+	int iters = (args.length == 0) ? 1 : Integer.parseInt(args[0]);
170	+
171	+	Test s = suite();
172	+	for (int i = 0; i < iters; ++i) {
173	+	junit.textui.TestRunner.run(s);
174	+	System.gc();
175	+	System.runFinalization();
176	+	}
177	+	System.exit(0);
178	+	}
179	+
180	+	public static TestSuite newTestSuite(Object... suiteOrClasses) {
181	+	TestSuite suite = new TestSuite();
182	+	for (Object suiteOrClass : suiteOrClasses) {
183	+	if (suiteOrClass instanceof TestSuite)
184	+	suite.addTest((TestSuite) suiteOrClass);
185	+	else if (suiteOrClass instanceof Class)
186	+	suite.addTest(new TestSuite((Class<?>) suiteOrClass));
187	+	else
188	+	throw new ClassCastException("not a test suite or class");
189	+	}
190	+	return suite;
191	+	}
192	+
193	+	public static void addNamedTestClasses(TestSuite suite,
194	+	String... testClassNames) {
195	+	for (String testClassName : testClassNames) {
196	+	try {
197	+	Class<?> testClass = Class.forName(testClassName);
198	+	Method m = testClass.getDeclaredMethod("suite",
199	+	new Class<?>[0]);
200	+	suite.addTest(newTestSuite((Test)m.invoke(null)));
201	+	} catch (Exception e) {
202	+	throw new Error("Missing test class", e);
203	+	}
204	+	}
205	+	}
206	+
207	+	public static final double JAVA_CLASS_VERSION;
208	+	static {
209	+	try {
210	+	JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
211	+	new java.security.PrivilegedAction<Double>() {
212	+	public Double run() {
213	+	return Double.valueOf(System.getProperty("java.class.version"));}});
214	+	} catch (Throwable t) {
215	+	throw new Error(t);
216	+	}
217	+	}
218	+
219	+	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
220	+	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
221	+	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
222	+
223	+	/**
224	+	* Collects all JSR166 unit tests as one suite.
225	+	*/
226	+	public static Test suite() {
227	+	// Java7+ test classes
228	+	TestSuite suite = newTestSuite(
229	+	ForkJoinPoolTest.suite(),
230	+	ForkJoinTaskTest.suite(),
231	+	RecursiveActionTest.suite(),
232	+	RecursiveTaskTest.suite(),
233	+	LinkedTransferQueueTest.suite(),
234	+	PhaserTest.suite(),
235	+	ThreadLocalRandomTest.suite(),
236	+	AbstractExecutorServiceTest.suite(),
237	+	AbstractQueueTest.suite(),
238	+	AbstractQueuedSynchronizerTest.suite(),
239	+	AbstractQueuedLongSynchronizerTest.suite(),
240	+	ArrayBlockingQueueTest.suite(),
241	+	ArrayDequeTest.suite(),
242	+	AtomicBooleanTest.suite(),
243	+	AtomicIntegerArrayTest.suite(),
244	+	AtomicIntegerFieldUpdaterTest.suite(),
245	+	AtomicIntegerTest.suite(),
246	+	AtomicLongArrayTest.suite(),
247	+	AtomicLongFieldUpdaterTest.suite(),
248	+	AtomicLongTest.suite(),
249	+	AtomicMarkableReferenceTest.suite(),
250	+	AtomicReferenceArrayTest.suite(),
251	+	AtomicReferenceFieldUpdaterTest.suite(),
252	+	AtomicReferenceTest.suite(),
253	+	AtomicStampedReferenceTest.suite(),
254	+	ConcurrentHashMapTest.suite(),
255	+	ConcurrentLinkedDequeTest.suite(),
256	+	ConcurrentLinkedQueueTest.suite(),
257	+	ConcurrentSkipListMapTest.suite(),
258	+	ConcurrentSkipListSubMapTest.suite(),
259	+	ConcurrentSkipListSetTest.suite(),
260	+	ConcurrentSkipListSubSetTest.suite(),
261	+	CopyOnWriteArrayListTest.suite(),
262	+	CopyOnWriteArraySetTest.suite(),
263	+	CountDownLatchTest.suite(),
264	+	CyclicBarrierTest.suite(),
265	+	DelayQueueTest.suite(),
266	+	EntryTest.suite(),
267	+	ExchangerTest.suite(),
268	+	ExecutorsTest.suite(),
269	+	ExecutorCompletionServiceTest.suite(),
270	+	FutureTaskTest.suite(),
271	+	LinkedBlockingDequeTest.suite(),
272	+	LinkedBlockingQueueTest.suite(),
273	+	LinkedListTest.suite(),
274	+	LockSupportTest.suite(),
275	+	PriorityBlockingQueueTest.suite(),
276	+	PriorityQueueTest.suite(),
277	+	ReentrantLockTest.suite(),
278	+	ReentrantReadWriteLockTest.suite(),
279	+	ScheduledExecutorTest.suite(),
280	+	ScheduledExecutorSubclassTest.suite(),
281	+	SemaphoreTest.suite(),
282	+	SynchronousQueueTest.suite(),
283	+	SystemTest.suite(),
284	+	ThreadLocalTest.suite(),
285	+	ThreadPoolExecutorTest.suite(),
286	+	ThreadPoolExecutorSubclassTest.suite(),
287	+	ThreadTest.suite(),
288	+	TimeUnitTest.suite(),
289	+	TreeMapTest.suite(),
290	+	TreeSetTest.suite(),
291	+	TreeSubMapTest.suite(),
292	+	TreeSubSetTest.suite());
293	+
294	+	// Java8+ test classes
295	+	if (atLeastJava8()) {
296	+	String[] java8TestClassNames = {
297	+	"Atomic8Test",
298	+	"CompletableFutureTest",
299	+	"ConcurrentHashMap8Test",
300	+	"CountedCompleterTest",
301	+	"DoubleAccumulatorTest",
302	+	"DoubleAdderTest",
303	+	"ForkJoinPool8Test",
304	+	"ForkJoinTask8Test",
305	+	"LongAccumulatorTest",
306	+	"LongAdderTest",
307	+	"SplittableRandomTest",
308	+	"StampedLockTest",
309	+	"ThreadLocalRandom8Test",
310	+	};
311	+	addNamedTestClasses(suite, java8TestClassNames);
312	+	}
313	+
314	+	return suite;
315	+	}
316	+
317	+	// Delays for timing-dependent tests, in milliseconds.
318
319		public static long SHORT_DELAY_MS;
320		public static long SMALL_DELAY_MS;
321		public static long MEDIUM_DELAY_MS;
322		public static long LONG_DELAY_MS;
323
61	–
324		/**
325	<	* Return the shortest timed delay. This could
326	<	* be reimplmented to use for example a Property.
327	<	*/
325	>	* Returns the shortest timed delay. This could
326	>	* be reimplemented to use for example a Property.
327	>	*/
328		protected long getShortDelay() {
329		return 50;
330		}
331
70	–
332		/**
333	<	* Set delays as multiples fo SHORT_DELAY.
333	>	* Sets delays as multiples of SHORT_DELAY.
334		*/
335	<	protected  void setDelays() {
335	>	protected void setDelays() {
336		SHORT_DELAY_MS = getShortDelay();
337	<	SMALL_DELAY_MS = SHORT_DELAY_MS * 5;
337	>	SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
338		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
339	<	LONG_DELAY_MS = SHORT_DELAY_MS * 50;
339	>	LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
340	>	}
341	>
342	>	/**
343	>	* Returns a timeout in milliseconds to be used in tests that
344	>	* verify that operations block or time out.
345	>	*/
346	>	long timeoutMillis() {
347	>	return SHORT_DELAY_MS / 4;
348	>	}
349	>
350	>	/**
351	>	* Returns a new Date instance representing a time delayMillis
352	>	* milliseconds in the future.
353	>	*/
354	>	Date delayedDate(long delayMillis) {
355	>	return new Date(System.currentTimeMillis() + delayMillis);
356		}
357
358		/**
359	<	* Flag set true if any threadAssert methods fail
359	>	* The first exception encountered if any threadAssertXXX method fails.
360		*/
361	<	protected volatile boolean threadFailed;
361	>	private final AtomicReference<Throwable> threadFailure
362	>	= new AtomicReference<Throwable>(null);
363
364		/**
365	<	* Initialize test to indicat that no thread assertions have failed
365	>	* Records an exception so that it can be rethrown later in the test
366	>	* harness thread, triggering a test case failure.  Only the first
367	>	* failure is recorded; subsequent calls to this method from within
368	>	* the same test have no effect.
369		*/
370	<	public void setUp() {
370	>	public void threadRecordFailure(Throwable t) {
371	>	threadFailure.compareAndSet(null, t);
372	>	}
373	>
374	>	public void setUp() {
375		setDelays();
91	–	threadFailed = false;
376		}
377
378		/**
379	<	* Trigger test case failure if any thread assertions have failed
379	>	* Extra checks that get done for all test cases.
380	>	*
381	>	* Triggers test case failure if any thread assertions have failed,
382	>	* by rethrowing, in the test harness thread, any exception recorded
383	>	* earlier by threadRecordFailure.
384	>	*
385	>	* Triggers test case failure if interrupt status is set in the main thread.
386		*/
387	<	public void tearDown() {
388	<	assertFalse(threadFailed);
387	>	public void tearDown() throws Exception {
388	>	Throwable t = threadFailure.getAndSet(null);
389	>	if (t != null) {
390	>	if (t instanceof Error)
391	>	throw (Error) t;
392	>	else if (t instanceof RuntimeException)
393	>	throw (RuntimeException) t;
394	>	else if (t instanceof Exception)
395	>	throw (Exception) t;
396	>	else {
397	>	AssertionFailedError afe =
398	>	new AssertionFailedError(t.toString());
399	>	afe.initCause(t);
400	>	throw afe;
401	>	}
402	>	}
403	>
404	>	if (Thread.interrupted())
405	>	throw new AssertionFailedError("interrupt status set in main thread");
406	>
407	>	checkForkJoinPoolThreadLeaks();
408		}
409
410	+	/**
411	+	* Find missing try { ... } finally { joinPool(e); }
412	+	*/
413	+	void checkForkJoinPoolThreadLeaks() throws InterruptedException {
414	+	Thread[] survivors = new Thread[5];
415	+	int count = Thread.enumerate(survivors);
416	+	for (int i = 0; i < count; i++) {
417	+	Thread thread = survivors[i];
418	+	String name = thread.getName();
419	+	if (name.startsWith("ForkJoinPool-")) {
420	+	// give thread some time to terminate
421	+	thread.join(LONG_DELAY_MS);
422	+	if (!thread.isAlive()) continue;
423	+	thread.stop();
424	+	throw new AssertionFailedError
425	+	(String.format("Found leaked ForkJoinPool thread test=%s thread=%s%n",
426	+	toString(), name));
427	+	}
428	+	}
429	+	}
430	+
431	+	/**
432	+	* Just like fail(reason), but additionally recording (using
433	+	* threadRecordFailure) any AssertionFailedError thrown, so that
434	+	* the current testcase will fail.
435	+	*/
436		public void threadFail(String reason) {
437	<	threadFailed = true;
438	<	fail(reason);
437	>	try {
438	>	fail(reason);
439	>	} catch (AssertionFailedError t) {
440	>	threadRecordFailure(t);
441	>	fail(reason);
442	>	}
443		}
444
445	+	/**
446	+	* Just like assertTrue(b), but additionally recording (using
447	+	* threadRecordFailure) any AssertionFailedError thrown, so that
448	+	* the current testcase will fail.
449	+	*/
450		public void threadAssertTrue(boolean b) {
451	<	if (!b) {
108	<	threadFailed = true;
451	>	try {
452		assertTrue(b);
453	+	} catch (AssertionFailedError t) {
454	+	threadRecordFailure(t);
455	+	throw t;
456		}
457		}
458	+
459	+	/**
460	+	* Just like assertFalse(b), but additionally recording (using
461	+	* threadRecordFailure) any AssertionFailedError thrown, so that
462	+	* the current testcase will fail.
463	+	*/
464		public void threadAssertFalse(boolean b) {
465	<	if (b) {
114	<	threadFailed = true;
465	>	try {
466		assertFalse(b);
467	+	} catch (AssertionFailedError t) {
468	+	threadRecordFailure(t);
469	+	throw t;
470		}
471		}
472	+
473	+	/**
474	+	* Just like assertNull(x), but additionally recording (using
475	+	* threadRecordFailure) any AssertionFailedError thrown, so that
476	+	* the current testcase will fail.
477	+	*/
478		public void threadAssertNull(Object x) {
479	<	if (x != null) {
120	<	threadFailed = true;
479	>	try {
480		assertNull(x);
481	+	} catch (AssertionFailedError t) {
482	+	threadRecordFailure(t);
483	+	throw t;
484		}
485		}
486	+
487	+	/**
488	+	* Just like assertEquals(x, y), but additionally recording (using
489	+	* threadRecordFailure) any AssertionFailedError thrown, so that
490	+	* the current testcase will fail.
491	+	*/
492		public void threadAssertEquals(long x, long y) {
493	<	if (x != y) {
126	<	threadFailed = true;
493	>	try {
494		assertEquals(x, y);
495	+	} catch (AssertionFailedError t) {
496	+	threadRecordFailure(t);
497	+	throw t;
498		}
499		}
500	+
501	+	/**
502	+	* Just like assertEquals(x, y), but additionally recording (using
503	+	* threadRecordFailure) any AssertionFailedError thrown, so that
504	+	* the current testcase will fail.
505	+	*/
506		public void threadAssertEquals(Object x, Object y) {
507	<	if (x != y && (x == null || !x.equals(y))) {
132	<	threadFailed = true;
507	>	try {
508		assertEquals(x, y);
509	+	} catch (AssertionFailedError t) {
510	+	threadRecordFailure(t);
511	+	throw t;
512	+	} catch (Throwable t) {
513	+	threadUnexpectedException(t);
514	+	}
515	+	}
516	+
517	+	/**
518	+	* Just like assertSame(x, y), but additionally recording (using
519	+	* threadRecordFailure) any AssertionFailedError thrown, so that
520	+	* the current testcase will fail.
521	+	*/
522	+	public void threadAssertSame(Object x, Object y) {
523	+	try {
524	+	assertSame(x, y);
525	+	} catch (AssertionFailedError t) {
526	+	threadRecordFailure(t);
527	+	throw t;
528	+	}
529	+	}
530	+
531	+	/**
532	+	* Calls threadFail with message "should throw exception".
533	+	*/
534	+	public void threadShouldThrow() {
535	+	threadFail("should throw exception");
536	+	}
537	+
538	+	/**
539	+	* Calls threadFail with message "should throw" + exceptionName.
540	+	*/
541	+	public void threadShouldThrow(String exceptionName) {
542	+	threadFail("should throw " + exceptionName);
543	+	}
544	+
545	+	/**
546	+	* Records the given exception using {@link #threadRecordFailure},
547	+	* then rethrows the exception, wrapping it in an
548	+	* AssertionFailedError if necessary.
549	+	*/
550	+	public void threadUnexpectedException(Throwable t) {
551	+	threadRecordFailure(t);
552	+	t.printStackTrace();
553	+	if (t instanceof RuntimeException)
554	+	throw (RuntimeException) t;
555	+	else if (t instanceof Error)
556	+	throw (Error) t;
557	+	else {
558	+	AssertionFailedError afe =
559	+	new AssertionFailedError("unexpected exception: " + t);
560	+	afe.initCause(t);
561	+	throw afe;
562	+	}
563	+	}
564	+
565	+	/**
566	+	* Delays, via Thread.sleep, for the given millisecond delay, but
567	+	* if the sleep is shorter than specified, may re-sleep or yield
568	+	* until time elapses.
569	+	*/
570	+	static void delay(long millis) throws InterruptedException {
571	+	long startTime = System.nanoTime();
572	+	long ns = millis * 1000 * 1000;
573	+	for (;;) {
574	+	if (millis > 0L)
575	+	Thread.sleep(millis);
576	+	else // too short to sleep
577	+	Thread.yield();
578	+	long d = ns - (System.nanoTime() - startTime);
579	+	if (d > 0L)
580	+	millis = d / (1000 * 1000);
581	+	else
582	+	break;
583		}
584		}
585
586		/**
587	<	* Wait out termination of a thread pool or fail doing so
587	>	* Waits out termination of a thread pool or fails doing so.
588		*/
589	<	public void joinPool(ExecutorService exec) {
589	>	void joinPool(ExecutorService exec) {
590		try {
591		exec.shutdown();
592	<	assertTrue(exec.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
593	<	} catch(InterruptedException ie) {
594	<	fail("unexpected exception");
592	>	assertTrue("ExecutorService did not terminate in a timely manner",
593	>	exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS));
594	>	} catch (SecurityException ok) {
595	>	// Allowed in case test doesn't have privs
596	>	} catch (InterruptedException ie) {
597	>	fail("Unexpected InterruptedException");
598		}
599		}
600
601	+	/**
602	+	* A debugging tool to print all stack traces, as jstack does.
603	+	*/
604	+	static void printAllStackTraces() {
605	+	for (ThreadInfo info :
606	+	ManagementFactory.getThreadMXBean()
607	+	.dumpAllThreads(true, true))
608	+	System.err.print(info);
609	+	}
610	+
611	+	/**
612	+	* Checks that thread does not terminate within the default
613	+	* millisecond delay of {@code timeoutMillis()}.
614	+	*/
615	+	void assertThreadStaysAlive(Thread thread) {
616	+	assertThreadStaysAlive(thread, timeoutMillis());
617	+	}
618	+
619	+	/**
620	+	* Checks that thread does not terminate within the given millisecond delay.
621	+	*/
622	+	void assertThreadStaysAlive(Thread thread, long millis) {
623	+	try {
624	+	// No need to optimize the failing case via Thread.join.
625	+	delay(millis);
626	+	assertTrue(thread.isAlive());
627	+	} catch (InterruptedException ie) {
628	+	fail("Unexpected InterruptedException");
629	+	}
630	+	}
631
632	+	/**
633	+	* Checks that the threads do not terminate within the default
634	+	* millisecond delay of {@code timeoutMillis()}.
635	+	*/
636	+	void assertThreadsStayAlive(Thread... threads) {
637	+	assertThreadsStayAlive(timeoutMillis(), threads);
638	+	}
639	+
640	+	/**
641	+	* Checks that the threads do not terminate within the given millisecond delay.
642	+	*/
643	+	void assertThreadsStayAlive(long millis, Thread... threads) {
644	+	try {
645	+	// No need to optimize the failing case via Thread.join.
646	+	delay(millis);
647	+	for (Thread thread : threads)
648	+	assertTrue(thread.isAlive());
649	+	} catch (InterruptedException ie) {
650	+	fail("Unexpected InterruptedException");
651	+	}
652	+	}
653	+
654	+	/**
655	+	* Checks that future.get times out, with the default timeout of
656	+	* {@code timeoutMillis()}.
657	+	*/
658	+	void assertFutureTimesOut(Future future) {
659	+	assertFutureTimesOut(future, timeoutMillis());
660	+	}
661	+
662	+	/**
663	+	* Checks that future.get times out, with the given millisecond timeout.
664	+	*/
665	+	void assertFutureTimesOut(Future future, long timeoutMillis) {
666	+	long startTime = System.nanoTime();
667	+	try {
668	+	future.get(timeoutMillis, MILLISECONDS);
669	+	shouldThrow();
670	+	} catch (TimeoutException success) {
671	+	} catch (Exception e) {
672	+	threadUnexpectedException(e);
673	+	} finally { future.cancel(true); }
674	+	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
675	+	}
676	+
677	+	/**
678	+	* Fails with message "should throw exception".
679	+	*/
680	+	public void shouldThrow() {
681	+	fail("Should throw exception");
682	+	}
683	+
684	+	/**
685	+	* Fails with message "should throw " + exceptionName.
686	+	*/
687	+	public void shouldThrow(String exceptionName) {
688	+	fail("Should throw " + exceptionName);
689	+	}
690
691		/**
692		* The number of elements to place in collections, arrays, etc.
#	Line 155 | Line 695 | public class JSR166TestCase extends Test
695
696		// Some convenient Integer constants
697
698	<	public static final Integer zero = new Integer(0);
699	<	public static final Integer one = new Integer(1);
700	<	public static final Integer two = new Integer(2);
701	<	public static final Integer three  = new Integer(3);
698	>	public static final Integer zero  = new Integer(0);
699	>	public static final Integer one   = new Integer(1);
700	>	public static final Integer two   = new Integer(2);
701	>	public static final Integer three = new Integer(3);
702		public static final Integer four  = new Integer(4);
703		public static final Integer five  = new Integer(5);
704	<	public static final Integer six = new Integer(6);
704	>	public static final Integer six   = new Integer(6);
705		public static final Integer seven = new Integer(7);
706		public static final Integer eight = new Integer(8);
707	<	public static final Integer nine = new Integer(9);
707	>	public static final Integer nine  = new Integer(9);
708		public static final Integer m1  = new Integer(-1);
709		public static final Integer m2  = new Integer(-2);
710		public static final Integer m3  = new Integer(-3);
711	<	public static final Integer m4 = new Integer(-4);
712	<	public static final Integer m5 = new Integer(-5);
711	>	public static final Integer m4  = new Integer(-4);
712	>	public static final Integer m5  = new Integer(-5);
713	>	public static final Integer m6  = new Integer(-6);
714		public static final Integer m10 = new Integer(-10);
715
716	+	/**
717	+	* Runs Runnable r with a security policy that permits precisely
718	+	* the specified permissions.  If there is no current security
719	+	* manager, the runnable is run twice, both with and without a
720	+	* security manager.  We require that any security manager permit
721	+	* getPolicy/setPolicy.
722	+	*/
723	+	public void runWithPermissions(Runnable r, Permission... permissions) {
724	+	SecurityManager sm = System.getSecurityManager();
725	+	if (sm == null) {
726	+	r.run();
727	+	}
728	+	runWithSecurityManagerWithPermissions(r, permissions);
729	+	}
730
731	<	// Some convenient Runnable classes
731	>	/**
732	>	* Runs Runnable r with a security policy that permits precisely
733	>	* the specified permissions.  If there is no current security
734	>	* manager, a temporary one is set for the duration of the
735	>	* Runnable.  We require that any security manager permit
736	>	* getPolicy/setPolicy.
737	>	*/
738	>	public void runWithSecurityManagerWithPermissions(Runnable r,
739	>	Permission... permissions) {
740	>	SecurityManager sm = System.getSecurityManager();
741	>	if (sm == null) {
742	>	Policy savedPolicy = Policy.getPolicy();
743	>	try {
744	>	Policy.setPolicy(permissivePolicy());
745	>	System.setSecurityManager(new SecurityManager());
746	>	runWithSecurityManagerWithPermissions(r, permissions);
747	>	} finally {
748	>	System.setSecurityManager(null);
749	>	Policy.setPolicy(savedPolicy);
750	>	}
751	>	} else {
752	>	Policy savedPolicy = Policy.getPolicy();
753	>	AdjustablePolicy policy = new AdjustablePolicy(permissions);
754	>	Policy.setPolicy(policy);
755
756	<	public static class NoOpRunnable implements Runnable {
757	<	public void run() {}
756	>	try {
757	>	r.run();
758	>	} finally {
759	>	policy.addPermission(new SecurityPermission("setPolicy"));
760	>	Policy.setPolicy(savedPolicy);
761	>	}
762	>	}
763		}
764
765	<	public static class NoOpCallable implements Callable {
766	<	public Object call() { return Boolean.TRUE; }
765	>	/**
766	>	* Runs a runnable without any permissions.
767	>	*/
768	>	public void runWithoutPermissions(Runnable r) {
769	>	runWithPermissions(r);
770		}
771
772	<	public class ShortRunnable implements Runnable {
773	<	public void run() {
774	<	try {
775	<	Thread.sleep(SHORT_DELAY_MS);
772	>	/**
773	>	* A security policy where new permissions can be dynamically added
774	>	* or all cleared.
775	>	*/
776	>	public static class AdjustablePolicy extends java.security.Policy {
777	>	Permissions perms = new Permissions();
778	>	AdjustablePolicy(Permission... permissions) {
779	>	for (Permission permission : permissions)
780	>	perms.add(permission);
781	>	}
782	>	void addPermission(Permission perm) { perms.add(perm); }
783	>	void clearPermissions() { perms = new Permissions(); }
784	>	public PermissionCollection getPermissions(CodeSource cs) {
785	>	return perms;
786	>	}
787	>	public PermissionCollection getPermissions(ProtectionDomain pd) {
788	>	return perms;
789	>	}
790	>	public boolean implies(ProtectionDomain pd, Permission p) {
791	>	return perms.implies(p);
792	>	}
793	>	public void refresh() {}
794	>	public String toString() {
795	>	List<Permission> ps = new ArrayList<Permission>();
796	>	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
797	>	ps.add(e.nextElement());
798	>	return "AdjustablePolicy with permissions " + ps;
799	>	}
800	>	}
801	>
802	>	/**
803	>	* Returns a policy containing all the permissions we ever need.
804	>	*/
805	>	public static Policy permissivePolicy() {
806	>	return new AdjustablePolicy
807	>	// Permissions j.u.c. needs directly
808	>	(new RuntimePermission("modifyThread"),
809	>	new RuntimePermission("getClassLoader"),
810	>	new RuntimePermission("setContextClassLoader"),
811	>	// Permissions needed to change permissions!
812	>	new SecurityPermission("getPolicy"),
813	>	new SecurityPermission("setPolicy"),
814	>	new RuntimePermission("setSecurityManager"),
815	>	// Permissions needed by the junit test harness
816	>	new RuntimePermission("accessDeclaredMembers"),
817	>	new PropertyPermission("*", "read"),
818	>	new java.io.FilePermission("<<ALL FILES>>", "read"));
819	>	}
820	>
821	>	/**
822	>	* Sleeps until the given time has elapsed.
823	>	* Throws AssertionFailedError if interrupted.
824	>	*/
825	>	void sleep(long millis) {
826	>	try {
827	>	delay(millis);
828	>	} catch (InterruptedException ie) {
829	>	AssertionFailedError afe =
830	>	new AssertionFailedError("Unexpected InterruptedException");
831	>	afe.initCause(ie);
832	>	throw afe;
833	>	}
834	>	}
835	>
836	>	/**
837	>	* Spin-waits up to the specified number of milliseconds for the given
838	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
839	>	*/
840	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
841	>	long startTime = System.nanoTime();
842	>	for (;;) {
843	>	Thread.State s = thread.getState();
844	>	if (s == Thread.State.BLOCKED ||
845	>	s == Thread.State.WAITING ||
846	>	s == Thread.State.TIMED_WAITING)
847	>	return;
848	>	else if (s == Thread.State.TERMINATED)
849	>	fail("Unexpected thread termination");
850	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
851	>	threadAssertTrue(thread.isAlive());
852	>	return;
853		}
854	<	catch(Exception e) {
855	<	threadFail("unexpectedException");
854	>	Thread.yield();
855	>	}
856	>	}
857	>
858	>	/**
859	>	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
860	>	* state: BLOCKED, WAITING, or TIMED_WAITING.
861	>	*/
862	>	void waitForThreadToEnterWaitState(Thread thread) {
863	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
864	>	}
865	>
866	>	/**
867	>	* Returns the number of milliseconds since time given by
868	>	* startNanoTime, which must have been previously returned from a
869	>	* call to {@link System.nanoTime()}.
870	>	*/
871	>	long millisElapsedSince(long startNanoTime) {
872	>	return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
873	>	}
874	>
875	>	/**
876	>	* Returns a new started daemon Thread running the given runnable.
877	>	*/
878	>	Thread newStartedThread(Runnable runnable) {
879	>	Thread t = new Thread(runnable);
880	>	t.setDaemon(true);
881	>	t.start();
882	>	return t;
883	>	}
884	>
885	>	/**
886	>	* Waits for the specified time (in milliseconds) for the thread
887	>	* to 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, long timeoutMillis) {
891	>	try {
892	>	t.join(timeoutMillis);
893	>	} catch (InterruptedException ie) {
894	>	threadUnexpectedException(ie);
895	>	} finally {
896	>	if (t.getState() != Thread.State.TERMINATED) {
897	>	t.interrupt();
898	>	fail("Test timed out");
899		}
900		}
901		}
902
903	<	public class ShortInterruptedRunnable implements Runnable {
904	<	public void run() {
903	>	/**
904	>	* Waits for LONG_DELAY_MS milliseconds for the thread to
905	>	* terminate (using {@link Thread#join(long)}), else interrupts
906	>	* the thread (in the hope that it may terminate later) and fails.
907	>	*/
908	>	void awaitTermination(Thread t) {
909	>	awaitTermination(t, LONG_DELAY_MS);
910	>	}
911	>
912	>	// Some convenient Runnable classes
913	>
914	>	public abstract class CheckedRunnable implements Runnable {
915	>	protected abstract void realRun() throws Throwable;
916	>
917	>	public final void run() {
918		try {
919	<	Thread.sleep(SHORT_DELAY_MS);
920	<	threadFail("should throw IE");
919	>	realRun();
920	>	} catch (Throwable t) {
921	>	threadUnexpectedException(t);
922		}
923	<	catch(InterruptedException success) {
923	>	}
924	>	}
925	>
926	>	public abstract class RunnableShouldThrow implements Runnable {
927	>	protected abstract void realRun() throws Throwable;
928	>
929	>	final Class<?> exceptionClass;
930	>
931	>	<T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) {
932	>	this.exceptionClass = exceptionClass;
933	>	}
934	>
935	>	public final void run() {
936	>	try {
937	>	realRun();
938	>	threadShouldThrow(exceptionClass.getSimpleName());
939	>	} catch (Throwable t) {
940	>	if (! exceptionClass.isInstance(t))
941	>	threadUnexpectedException(t);
942		}
943		}
944		}
945
946	<	public class SmallRunnable implements Runnable {
947	<	public void run() {
946	>	public abstract class ThreadShouldThrow extends Thread {
947	>	protected abstract void realRun() throws Throwable;
948	>
949	>	final Class<?> exceptionClass;
950	>
951	>	<T extends Throwable> ThreadShouldThrow(Class<T> exceptionClass) {
952	>	this.exceptionClass = exceptionClass;
953	>	}
954	>
955	>	public final void run() {
956		try {
957	<	Thread.sleep(SMALL_DELAY_MS);
957	>	realRun();
958	>	threadShouldThrow(exceptionClass.getSimpleName());
959	>	} catch (Throwable t) {
960	>	if (! exceptionClass.isInstance(t))
961	>	threadUnexpectedException(t);
962		}
963	<	catch(Exception e) {
964	<	threadFail("unexpectedException");
963	>	}
964	>	}
965	>
966	>	public abstract class CheckedInterruptedRunnable implements Runnable {
967	>	protected abstract void realRun() throws Throwable;
968	>
969	>	public final void run() {
970	>	try {
971	>	realRun();
972	>	threadShouldThrow("InterruptedException");
973	>	} catch (InterruptedException success) {
974	>	threadAssertFalse(Thread.interrupted());
975	>	} catch (Throwable t) {
976	>	threadUnexpectedException(t);
977		}
978		}
979		}
980
981	<	public class SmallCallable implements Callable {
982	<	public Object call() {
981	>	public abstract class CheckedCallable<T> implements Callable<T> {
982	>	protected abstract T realCall() throws Throwable;
983	>
984	>	public final T call() {
985		try {
986	<	Thread.sleep(SMALL_DELAY_MS);
986	>	return realCall();
987	>	} catch (Throwable t) {
988	>	threadUnexpectedException(t);
989	>	return null;
990		}
991	<	catch(Exception e) {
992	<	threadFail("unexpectedException");
991	>	}
992	>	}
993	>
994	>	public abstract class CheckedInterruptedCallable<T>
995	>	implements Callable<T> {
996	>	protected abstract T realCall() throws Throwable;
997	>
998	>	public final T call() {
999	>	try {
1000	>	T result = realCall();
1001	>	threadShouldThrow("InterruptedException");
1002	>	return result;
1003	>	} catch (InterruptedException success) {
1004	>	threadAssertFalse(Thread.interrupted());
1005	>	} catch (Throwable t) {
1006	>	threadUnexpectedException(t);
1007		}
1008	+	return null;
1009	+	}
1010	+	}
1011	+
1012	+	public static class NoOpRunnable implements Runnable {
1013	+	public void run() {}
1014	+	}
1015	+
1016	+	public static class NoOpCallable implements Callable {
1017	+	public Object call() { return Boolean.TRUE; }
1018	+	}
1019	+
1020	+	public static final String TEST_STRING = "a test string";
1021	+
1022	+	public static class StringTask implements Callable<String> {
1023	+	public String call() { return TEST_STRING; }
1024	+	}
1025	+
1026	+	public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
1027	+	return new CheckedCallable<String>() {
1028	+	protected String realCall() {
1029	+	try {
1030	+	latch.await();
1031	+	} catch (InterruptedException quittingTime) {}
1032	+	return TEST_STRING;
1033	+	}};
1034	+	}
1035	+
1036	+	public Runnable awaiter(final CountDownLatch latch) {
1037	+	return new CheckedRunnable() {
1038	+	public void realRun() throws InterruptedException {
1039	+	await(latch);
1040	+	}};
1041	+	}
1042	+
1043	+	public void await(CountDownLatch latch) {
1044	+	try {
1045	+	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1046	+	} catch (Throwable t) {
1047	+	threadUnexpectedException(t);
1048	+	}
1049	+	}
1050	+
1051	+	public void await(Semaphore semaphore) {
1052	+	try {
1053	+	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1054	+	} catch (Throwable t) {
1055	+	threadUnexpectedException(t);
1056	+	}
1057	+	}
1058	+
1059	+	//     /**
1060	+	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1061	+	//      */
1062	+	//     public void await(AtomicBoolean flag) {
1063	+	//         await(flag, LONG_DELAY_MS);
1064	+	//     }
1065	+
1066	+	//     /**
1067	+	//      * Spin-waits up to the specified timeout until flag becomes true.
1068	+	//      */
1069	+	//     public void await(AtomicBoolean flag, long timeoutMillis) {
1070	+	//         long startTime = System.nanoTime();
1071	+	//         while (!flag.get()) {
1072	+	//             if (millisElapsedSince(startTime) > timeoutMillis)
1073	+	//                 throw new AssertionFailedError("timed out");
1074	+	//             Thread.yield();
1075	+	//         }
1076	+	//     }
1077	+
1078	+	public static class NPETask implements Callable<String> {
1079	+	public String call() { throw new NullPointerException(); }
1080	+	}
1081	+
1082	+	public static class CallableOne implements Callable<Integer> {
1083	+	public Integer call() { return one; }
1084	+	}
1085	+
1086	+	public class ShortRunnable extends CheckedRunnable {
1087	+	protected void realRun() throws Throwable {
1088	+	delay(SHORT_DELAY_MS);
1089	+	}
1090	+	}
1091	+
1092	+	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1093	+	protected void realRun() throws InterruptedException {
1094	+	delay(SHORT_DELAY_MS);
1095	+	}
1096	+	}
1097	+
1098	+	public class SmallRunnable extends CheckedRunnable {
1099	+	protected void realRun() throws Throwable {
1100	+	delay(SMALL_DELAY_MS);
1101	+	}
1102	+	}
1103	+
1104	+	public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1105	+	protected void realRun() {
1106	+	try {
1107	+	delay(SMALL_DELAY_MS);
1108	+	} catch (InterruptedException ok) {}
1109	+	}
1110	+	}
1111	+
1112	+	public class SmallCallable extends CheckedCallable {
1113	+	protected Object realCall() throws InterruptedException {
1114	+	delay(SMALL_DELAY_MS);
1115		return Boolean.TRUE;
1116		}
1117		}
1118
1119	<	public class SmallInterruptedRunnable implements Runnable {
1119	>	public class MediumRunnable extends CheckedRunnable {
1120	>	protected void realRun() throws Throwable {
1121	>	delay(MEDIUM_DELAY_MS);
1122	>	}
1123	>	}
1124	>
1125	>	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1126	>	protected void realRun() throws InterruptedException {
1127	>	delay(MEDIUM_DELAY_MS);
1128	>	}
1129	>	}
1130	>
1131	>	public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1132	>	return new CheckedRunnable() {
1133	>	protected void realRun() {
1134	>	try {
1135	>	delay(timeoutMillis);
1136	>	} catch (InterruptedException ok) {}
1137	>	}};
1138	>	}
1139	>
1140	>	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1141	>	protected void realRun() {
1142	>	try {
1143	>	delay(MEDIUM_DELAY_MS);
1144	>	} catch (InterruptedException ok) {}
1145	>	}
1146	>	}
1147	>
1148	>	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1149	>	protected void realRun() {
1150	>	try {
1151	>	delay(LONG_DELAY_MS);
1152	>	} catch (InterruptedException ok) {}
1153	>	}
1154	>	}
1155	>
1156	>	/**
1157	>	* For use as ThreadFactory in constructors
1158	>	*/
1159	>	public static class SimpleThreadFactory implements ThreadFactory {
1160	>	public Thread newThread(Runnable r) {
1161	>	return new Thread(r);
1162	>	}
1163	>	}
1164	>
1165	>	public interface TrackedRunnable extends Runnable {
1166	>	boolean isDone();
1167	>	}
1168	>
1169	>	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1170	>	return new TrackedRunnable() {
1171	>	private volatile boolean done = false;
1172	>	public boolean isDone() { return done; }
1173	>	public void run() {
1174	>	try {
1175	>	delay(timeoutMillis);
1176	>	done = true;
1177	>	} catch (InterruptedException ok) {}
1178	>	}
1179	>	};
1180	>	}
1181	>
1182	>	public static class TrackedShortRunnable implements Runnable {
1183	>	public volatile boolean done = false;
1184		public void run() {
1185		try {
1186	<	Thread.sleep(SMALL_DELAY_MS);
1187	<	threadFail("should throw IE");
1188	<	}
237	<	catch(InterruptedException success) {
238	<	}
1186	>	delay(SHORT_DELAY_MS);
1187	>	done = true;
1188	>	} catch (InterruptedException ok) {}
1189		}
1190		}
1191
1192	+	public static class TrackedSmallRunnable implements Runnable {
1193	+	public volatile boolean done = false;
1194	+	public void run() {
1195	+	try {
1196	+	delay(SMALL_DELAY_MS);
1197	+	done = true;
1198	+	} catch (InterruptedException ok) {}
1199	+	}
1200	+	}
1201
1202	<	public class MediumRunnable implements Runnable {
1202	>	public static class TrackedMediumRunnable implements Runnable {
1203	>	public volatile boolean done = false;
1204		public void run() {
1205		try {
1206	<	Thread.sleep(MEDIUM_DELAY_MS);
1207	<	}
1208	<	catch(Exception e) {
249	<	threadFail("unexpectedException");
250	<	}
1206	>	delay(MEDIUM_DELAY_MS);
1207	>	done = true;
1208	>	} catch (InterruptedException ok) {}
1209		}
1210		}
1211
1212	<	public class MediumInterruptedRunnable implements Runnable {
1212	>	public static class TrackedLongRunnable implements Runnable {
1213	>	public volatile boolean done = false;
1214		public void run() {
1215		try {
1216	<	Thread.sleep(MEDIUM_DELAY_MS);
1217	<	threadFail("should throw IE");
1216	>	delay(LONG_DELAY_MS);
1217	>	done = true;
1218	>	} catch (InterruptedException ok) {}
1219	>	}
1220	>	}
1221	>
1222	>	public static class TrackedNoOpRunnable implements Runnable {
1223	>	public volatile boolean done = false;
1224	>	public void run() {
1225	>	done = true;
1226	>	}
1227	>	}
1228	>
1229	>	public static class TrackedCallable implements Callable {
1230	>	public volatile boolean done = false;
1231	>	public Object call() {
1232	>	try {
1233	>	delay(SMALL_DELAY_MS);
1234	>	done = true;
1235	>	} catch (InterruptedException ok) {}
1236	>	return Boolean.TRUE;
1237	>	}
1238	>	}
1239	>
1240	>	/**
1241	>	* Analog of CheckedRunnable for RecursiveAction
1242	>	*/
1243	>	public abstract class CheckedRecursiveAction extends RecursiveAction {
1244	>	protected abstract void realCompute() throws Throwable;
1245	>
1246	>	@Override protected final void compute() {
1247	>	try {
1248	>	realCompute();
1249	>	} catch (Throwable t) {
1250	>	threadUnexpectedException(t);
1251		}
1252	<	catch(InterruptedException success) {
1252	>	}
1253	>	}
1254	>
1255	>	/**
1256	>	* Analog of CheckedCallable for RecursiveTask
1257	>	*/
1258	>	public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1259	>	protected abstract T realCompute() throws Throwable;
1260	>
1261	>	@Override protected final T compute() {
1262	>	try {
1263	>	return realCompute();
1264	>	} catch (Throwable t) {
1265	>	threadUnexpectedException(t);
1266	>	return null;
1267		}
1268		}
1269		}
1270
1271	<	public class MediumPossiblyInterruptedRunnable implements Runnable {
1272	<	public void run() {
1271	>	/**
1272	>	* For use as RejectedExecutionHandler in constructors
1273	>	*/
1274	>	public static class NoOpREHandler implements RejectedExecutionHandler {
1275	>	public void rejectedExecution(Runnable r,
1276	>	ThreadPoolExecutor executor) {}
1277	>	}
1278	>
1279	>	/**
1280	>	* A CyclicBarrier that uses timed await and fails with
1281	>	* AssertionFailedErrors instead of throwing checked exceptions.
1282	>	*/
1283	>	public class CheckedBarrier extends CyclicBarrier {
1284	>	public CheckedBarrier(int parties) { super(parties); }
1285	>
1286	>	public int await() {
1287		try {
1288	<	Thread.sleep(MEDIUM_DELAY_MS);
1288	>	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1289	>	} catch (TimeoutException e) {
1290	>	throw new AssertionFailedError("timed out");
1291	>	} catch (Exception e) {
1292	>	AssertionFailedError afe =
1293	>	new AssertionFailedError("Unexpected exception: " + e);
1294	>	afe.initCause(e);
1295	>	throw afe;
1296		}
1297	<	catch(InterruptedException success) {
1297	>	}
1298	>	}
1299	>
1300	>	void checkEmpty(BlockingQueue q) {
1301	>	try {
1302	>	assertTrue(q.isEmpty());
1303	>	assertEquals(0, q.size());
1304	>	assertNull(q.peek());
1305	>	assertNull(q.poll());
1306	>	assertNull(q.poll(0, MILLISECONDS));
1307	>	assertEquals(q.toString(), "[]");
1308	>	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1309	>	assertFalse(q.iterator().hasNext());
1310	>	try {
1311	>	q.element();
1312	>	shouldThrow();
1313	>	} catch (NoSuchElementException success) {}
1314	>	try {
1315	>	q.iterator().next();
1316	>	shouldThrow();
1317	>	} catch (NoSuchElementException success) {}
1318	>	try {
1319	>	q.remove();
1320	>	shouldThrow();
1321	>	} catch (NoSuchElementException success) {}
1322	>	} catch (InterruptedException ie) {
1323	>	threadUnexpectedException(ie);
1324	>	}
1325	>	}
1326	>
1327	>	void assertSerialEquals(Object x, Object y) {
1328	>	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1329	>	}
1330	>
1331	>	void assertNotSerialEquals(Object x, Object y) {
1332	>	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1333	>	}
1334	>
1335	>	byte[] serialBytes(Object o) {
1336	>	try {
1337	>	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1338	>	ObjectOutputStream oos = new ObjectOutputStream(bos);
1339	>	oos.writeObject(o);
1340	>	oos.flush();
1341	>	oos.close();
1342	>	return bos.toByteArray();
1343	>	} catch (Throwable t) {
1344	>	threadUnexpectedException(t);
1345	>	return new byte[0];
1346	>	}
1347	>	}
1348	>
1349	>	@SuppressWarnings("unchecked")
1350	>	<T> T serialClone(T o) {
1351	>	try {
1352	>	ObjectInputStream ois = new ObjectInputStream
1353	>	(new ByteArrayInputStream(serialBytes(o)));
1354	>	T clone = (T) ois.readObject();
1355	>	assertSame(o.getClass(), clone.getClass());
1356	>	return clone;
1357	>	} catch (Throwable t) {
1358	>	threadUnexpectedException(t);
1359	>	return null;
1360	>	}
1361	>	}
1362	>
1363	>	public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1364	>	Runnable... throwingActions) {
1365	>	for (Runnable throwingAction : throwingActions) {
1366	>	boolean threw = false;
1367	>	try { throwingAction.run(); }
1368	>	catch (Throwable t) {
1369	>	threw = true;
1370	>	if (!expectedExceptionClass.isInstance(t)) {
1371	>	AssertionFailedError afe =
1372	>	new AssertionFailedError
1373	>	("Expected " + expectedExceptionClass.getName() +
1374	>	", got " + t.getClass().getName());
1375	>	afe.initCause(t);
1376	>	threadUnexpectedException(afe);
1377	>	}
1378		}
1379	+	if (!threw)
1380	+	shouldThrow(expectedExceptionClass.getName());
1381		}
1382		}
274	–
1383		}

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