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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 1.107 by jsr166, Sun Apr 21 06:19:58 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	+	"CompletableFutureTest",
298	+	"ConcurrentHashMap8Test",
299	+	"CountedCompleterTest",
300	+	"DoubleAccumulatorTest",
301	+	"DoubleAdderTest",
302	+	"ForkJoinPool8Test",
303	+	"LongAccumulatorTest",
304	+	"LongAdderTest",
305	+	"StampedLockTest",
306	+	};
307	+	addNamedTestClasses(suite, java8TestClassNames);
308	+	}
309	+
310	+	return suite;
311	+	}
312	+
313
314		public static long SHORT_DELAY_MS;
315		public static long SMALL_DELAY_MS;
#	Line 60 | Line 318 | public class JSR166TestCase extends Test
318
319
320		/**
321	<	* Return the shortest timed delay. This could
322	<	* be reimplmented to use for example a Property.
323	<	*/
321	>	* Returns the shortest timed delay. This could
322	>	* be reimplemented to use for example a Property.
323	>	*/
324		protected long getShortDelay() {
325		return 50;
326		}
327
70	–
328		/**
329	<	* Set delays as multiples fo SHORT_DELAY.
329	>	* Sets delays as multiples of SHORT_DELAY.
330		*/
331	<	protected  void setDelays() {
331	>	protected void setDelays() {
332		SHORT_DELAY_MS = getShortDelay();
333	<	SMALL_DELAY_MS = SHORT_DELAY_MS * 5;
333	>	SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
334		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
335	<	LONG_DELAY_MS = SHORT_DELAY_MS * 50;
335	>	LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
336	>	}
337	>
338	>	/**
339	>	* Returns a timeout in milliseconds to be used in tests that
340	>	* verify that operations block or time out.
341	>	*/
342	>	long timeoutMillis() {
343	>	return SHORT_DELAY_MS / 4;
344	>	}
345	>
346	>	/**
347	>	* Returns a new Date instance representing a time delayMillis
348	>	* milliseconds in the future.
349	>	*/
350	>	Date delayedDate(long delayMillis) {
351	>	return new Date(System.currentTimeMillis() + delayMillis);
352		}
353
354		/**
355	<	* Flag set true if any threadAssert methods fail
355	>	* The first exception encountered if any threadAssertXXX method fails.
356		*/
357	<	protected volatile boolean threadFailed;
357	>	private final AtomicReference<Throwable> threadFailure
358	>	= new AtomicReference<Throwable>(null);
359
360		/**
361	<	* Initialize test to indicat that no thread assertions have failed
361	>	* Records an exception so that it can be rethrown later in the test
362	>	* harness thread, triggering a test case failure.  Only the first
363	>	* failure is recorded; subsequent calls to this method from within
364	>	* the same test have no effect.
365		*/
366	<	public void setUp() {
366	>	public void threadRecordFailure(Throwable t) {
367	>	threadFailure.compareAndSet(null, t);
368	>	}
369	>
370	>	public void setUp() {
371		setDelays();
91	–	threadFailed = false;
372		}
373
374		/**
375	<	* Trigger test case failure if any thread assertions have failed
375	>	* Extra checks that get done for all test cases.
376	>	*
377	>	* Triggers test case failure if any thread assertions have failed,
378	>	* by rethrowing, in the test harness thread, any exception recorded
379	>	* earlier by threadRecordFailure.
380	>	*
381	>	* Triggers test case failure if interrupt status is set in the main thread.
382		*/
383	<	public void tearDown() {
384	<	assertFalse(threadFailed);
383	>	public void tearDown() throws Exception {
384	>	Throwable t = threadFailure.getAndSet(null);
385	>	if (t != null) {
386	>	if (t instanceof Error)
387	>	throw (Error) t;
388	>	else if (t instanceof RuntimeException)
389	>	throw (RuntimeException) t;
390	>	else if (t instanceof Exception)
391	>	throw (Exception) t;
392	>	else {
393	>	AssertionFailedError afe =
394	>	new AssertionFailedError(t.toString());
395	>	afe.initCause(t);
396	>	throw afe;
397	>	}
398	>	}
399	>
400	>	if (Thread.interrupted())
401	>	throw new AssertionFailedError("interrupt status set in main thread");
402	>
403	>	checkForkJoinPoolThreadLeaks();
404		}
405
406	+	/**
407	+	* Find missing try { ... } finally { joinPool(e); }
408	+	*/
409	+	void checkForkJoinPoolThreadLeaks() throws InterruptedException {
410	+	Thread[] survivors = new Thread[5];
411	+	int count = Thread.enumerate(survivors);
412	+	for (int i = 0; i < count; i++) {
413	+	Thread thread = survivors[i];
414	+	String name = thread.getName();
415	+	if (name.startsWith("ForkJoinPool-")) {
416	+	// give thread some time to terminate
417	+	thread.join(LONG_DELAY_MS);
418	+	if (!thread.isAlive()) continue;
419	+	thread.stop();
420	+	throw new AssertionFailedError
421	+	(String.format("Found leaked ForkJoinPool thread test=%s thread=%s%n",
422	+	toString(), name));
423	+	}
424	+	}
425	+	}
426	+
427	+	/**
428	+	* Just like fail(reason), but additionally recording (using
429	+	* threadRecordFailure) any AssertionFailedError thrown, so that
430	+	* the current testcase will fail.
431	+	*/
432		public void threadFail(String reason) {
433	<	threadFailed = true;
434	<	fail(reason);
433	>	try {
434	>	fail(reason);
435	>	} catch (AssertionFailedError t) {
436	>	threadRecordFailure(t);
437	>	fail(reason);
438	>	}
439		}
440
441	+	/**
442	+	* Just like assertTrue(b), but additionally recording (using
443	+	* threadRecordFailure) any AssertionFailedError thrown, so that
444	+	* the current testcase will fail.
445	+	*/
446		public void threadAssertTrue(boolean b) {
447	<	if (!b) {
108	<	threadFailed = true;
447	>	try {
448		assertTrue(b);
449	+	} catch (AssertionFailedError t) {
450	+	threadRecordFailure(t);
451	+	throw t;
452		}
453		}
454	+
455	+	/**
456	+	* Just like assertFalse(b), but additionally recording (using
457	+	* threadRecordFailure) any AssertionFailedError thrown, so that
458	+	* the current testcase will fail.
459	+	*/
460		public void threadAssertFalse(boolean b) {
461	<	if (b) {
114	<	threadFailed = true;
461	>	try {
462		assertFalse(b);
463	+	} catch (AssertionFailedError t) {
464	+	threadRecordFailure(t);
465	+	throw t;
466		}
467		}
468	+
469	+	/**
470	+	* Just like assertNull(x), but additionally recording (using
471	+	* threadRecordFailure) any AssertionFailedError thrown, so that
472	+	* the current testcase will fail.
473	+	*/
474		public void threadAssertNull(Object x) {
475	<	if (x != null) {
120	<	threadFailed = true;
475	>	try {
476		assertNull(x);
477	+	} catch (AssertionFailedError t) {
478	+	threadRecordFailure(t);
479	+	throw t;
480		}
481		}
482	+
483	+	/**
484	+	* Just like assertEquals(x, y), but additionally recording (using
485	+	* threadRecordFailure) any AssertionFailedError thrown, so that
486	+	* the current testcase will fail.
487	+	*/
488		public void threadAssertEquals(long x, long y) {
489	<	if (x != y) {
126	<	threadFailed = true;
489	>	try {
490		assertEquals(x, y);
491	+	} catch (AssertionFailedError t) {
492	+	threadRecordFailure(t);
493	+	throw t;
494		}
495		}
496	+
497	+	/**
498	+	* Just like assertEquals(x, y), but additionally recording (using
499	+	* threadRecordFailure) any AssertionFailedError thrown, so that
500	+	* the current testcase will fail.
501	+	*/
502		public void threadAssertEquals(Object x, Object y) {
503	<	if (x != y && (x == null || !x.equals(y))) {
132	<	threadFailed = true;
503	>	try {
504		assertEquals(x, y);
505	+	} catch (AssertionFailedError t) {
506	+	threadRecordFailure(t);
507	+	throw t;
508	+	} catch (Throwable t) {
509	+	threadUnexpectedException(t);
510	+	}
511	+	}
512	+
513	+	/**
514	+	* Just like assertSame(x, y), but additionally recording (using
515	+	* threadRecordFailure) any AssertionFailedError thrown, so that
516	+	* the current testcase will fail.
517	+	*/
518	+	public void threadAssertSame(Object x, Object y) {
519	+	try {
520	+	assertSame(x, y);
521	+	} catch (AssertionFailedError t) {
522	+	threadRecordFailure(t);
523	+	throw t;
524	+	}
525	+	}
526	+
527	+	/**
528	+	* Calls threadFail with message "should throw exception".
529	+	*/
530	+	public void threadShouldThrow() {
531	+	threadFail("should throw exception");
532	+	}
533	+
534	+	/**
535	+	* Calls threadFail with message "should throw" + exceptionName.
536	+	*/
537	+	public void threadShouldThrow(String exceptionName) {
538	+	threadFail("should throw " + exceptionName);
539	+	}
540	+
541	+	/**
542	+	* Records the given exception using {@link #threadRecordFailure},
543	+	* then rethrows the exception, wrapping it in an
544	+	* AssertionFailedError if necessary.
545	+	*/
546	+	public void threadUnexpectedException(Throwable t) {
547	+	threadRecordFailure(t);
548	+	t.printStackTrace();
549	+	if (t instanceof RuntimeException)
550	+	throw (RuntimeException) t;
551	+	else if (t instanceof Error)
552	+	throw (Error) t;
553	+	else {
554	+	AssertionFailedError afe =
555	+	new AssertionFailedError("unexpected exception: " + t);
556	+	afe.initCause(t);
557	+	throw afe;
558	+	}
559	+	}
560	+
561	+	/**
562	+	* Delays, via Thread.sleep, for the given millisecond delay, but
563	+	* if the sleep is shorter than specified, may re-sleep or yield
564	+	* until time elapses.
565	+	*/
566	+	static void delay(long millis) throws InterruptedException {
567	+	long startTime = System.nanoTime();
568	+	long ns = millis * 1000 * 1000;
569	+	for (;;) {
570	+	if (millis > 0L)
571	+	Thread.sleep(millis);
572	+	else // too short to sleep
573	+	Thread.yield();
574	+	long d = ns - (System.nanoTime() - startTime);
575	+	if (d > 0L)
576	+	millis = d / (1000 * 1000);
577	+	else
578	+	break;
579		}
580		}
581
582		/**
583	<	* Wait out termination of a thread pool or fail doing so
583	>	* Waits out termination of a thread pool or fails doing so.
584		*/
585	<	public void joinPool(ExecutorService exec) {
585	>	void joinPool(ExecutorService exec) {
586		try {
587		exec.shutdown();
588	<	assertTrue(exec.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
589	<	} catch(InterruptedException ie) {
590	<	fail("unexpected exception");
588	>	assertTrue("ExecutorService did not terminate in a timely manner",
589	>	exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS));
590	>	} catch (SecurityException ok) {
591	>	// Allowed in case test doesn't have privs
592	>	} catch (InterruptedException ie) {
593	>	fail("Unexpected InterruptedException");
594	>	}
595	>	}
596	>
597	>	/**
598	>	* A debugging tool to print all stack traces, as jstack does.
599	>	*/
600	>	static void printAllStackTraces() {
601	>	for (ThreadInfo info :
602	>	ManagementFactory.getThreadMXBean()
603	>	.dumpAllThreads(true, true))
604	>	System.err.print(info);
605	>	}
606	>
607	>	/**
608	>	* Checks that thread does not terminate within the default
609	>	* millisecond delay of {@code timeoutMillis()}.
610	>	*/
611	>	void assertThreadStaysAlive(Thread thread) {
612	>	assertThreadStaysAlive(thread, timeoutMillis());
613	>	}
614	>
615	>	/**
616	>	* Checks that thread does not terminate within the given millisecond delay.
617	>	*/
618	>	void assertThreadStaysAlive(Thread thread, long millis) {
619	>	try {
620	>	// No need to optimize the failing case via Thread.join.
621	>	delay(millis);
622	>	assertTrue(thread.isAlive());
623	>	} catch (InterruptedException ie) {
624	>	fail("Unexpected InterruptedException");
625		}
626		}
627
628	+	/**
629	+	* Checks that the threads do not terminate within the default
630	+	* millisecond delay of {@code timeoutMillis()}.
631	+	*/
632	+	void assertThreadsStayAlive(Thread... threads) {
633	+	assertThreadsStayAlive(timeoutMillis(), threads);
634	+	}
635
636	+	/**
637	+	* Checks that the threads do not terminate within the given millisecond delay.
638	+	*/
639	+	void assertThreadsStayAlive(long millis, Thread... threads) {
640	+	try {
641	+	// No need to optimize the failing case via Thread.join.
642	+	delay(millis);
643	+	for (Thread thread : threads)
644	+	assertTrue(thread.isAlive());
645	+	} catch (InterruptedException ie) {
646	+	fail("Unexpected InterruptedException");
647	+	}
648	+	}
649	+
650	+	/**
651	+	* Checks that future.get times out, with the default timeout of
652	+	* {@code timeoutMillis()}.
653	+	*/
654	+	void assertFutureTimesOut(Future future) {
655	+	assertFutureTimesOut(future, timeoutMillis());
656	+	}
657	+
658	+	/**
659	+	* Checks that future.get times out, with the given millisecond timeout.
660	+	*/
661	+	void assertFutureTimesOut(Future future, long timeoutMillis) {
662	+	long startTime = System.nanoTime();
663	+	try {
664	+	future.get(timeoutMillis, MILLISECONDS);
665	+	shouldThrow();
666	+	} catch (TimeoutException success) {
667	+	} catch (Exception e) {
668	+	threadUnexpectedException(e);
669	+	} finally { future.cancel(true); }
670	+	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
671	+	}
672	+
673	+	/**
674	+	* Fails with message "should throw exception".
675	+	*/
676	+	public void shouldThrow() {
677	+	fail("Should throw exception");
678	+	}
679	+
680	+	/**
681	+	* Fails with message "should throw " + exceptionName.
682	+	*/
683	+	public void shouldThrow(String exceptionName) {
684	+	fail("Should throw " + exceptionName);
685	+	}
686
687		/**
688		* The number of elements to place in collections, arrays, etc.
#	Line 155 | Line 691 | public class JSR166TestCase extends Test
691
692		// Some convenient Integer constants
693
694	<	public static final Integer zero = new Integer(0);
695	<	public static final Integer one = new Integer(1);
696	<	public static final Integer two = new Integer(2);
697	<	public static final Integer three  = new Integer(3);
694	>	public static final Integer zero  = new Integer(0);
695	>	public static final Integer one   = new Integer(1);
696	>	public static final Integer two   = new Integer(2);
697	>	public static final Integer three = new Integer(3);
698		public static final Integer four  = new Integer(4);
699		public static final Integer five  = new Integer(5);
700	<	public static final Integer six = new Integer(6);
700	>	public static final Integer six   = new Integer(6);
701		public static final Integer seven = new Integer(7);
702		public static final Integer eight = new Integer(8);
703	<	public static final Integer nine = new Integer(9);
703	>	public static final Integer nine  = new Integer(9);
704		public static final Integer m1  = new Integer(-1);
705		public static final Integer m2  = new Integer(-2);
706		public static final Integer m3  = new Integer(-3);
707	<	public static final Integer m4 = new Integer(-4);
708	<	public static final Integer m5 = new Integer(-5);
707	>	public static final Integer m4  = new Integer(-4);
708	>	public static final Integer m5  = new Integer(-5);
709	>	public static final Integer m6  = new Integer(-6);
710		public static final Integer m10 = new Integer(-10);
711
712
713	<	// Some convenient Runnable classes
713	>	/**
714	>	* Runs Runnable r with a security policy that permits precisely
715	>	* the specified permissions.  If there is no current security
716	>	* manager, the runnable is run twice, both with and without a
717	>	* security manager.  We require that any security manager permit
718	>	* getPolicy/setPolicy.
719	>	*/
720	>	public void runWithPermissions(Runnable r, Permission... permissions) {
721	>	SecurityManager sm = System.getSecurityManager();
722	>	if (sm == null) {
723	>	r.run();
724	>	}
725	>	runWithSecurityManagerWithPermissions(r, permissions);
726	>	}
727
728	<	public static class NoOpRunnable implements Runnable {
729	<	public void run() {}
728	>	/**
729	>	* Runs Runnable r with a security policy that permits precisely
730	>	* the specified permissions.  If there is no current security
731	>	* manager, a temporary one is set for the duration of the
732	>	* Runnable.  We require that any security manager permit
733	>	* getPolicy/setPolicy.
734	>	*/
735	>	public void runWithSecurityManagerWithPermissions(Runnable r,
736	>	Permission... permissions) {
737	>	SecurityManager sm = System.getSecurityManager();
738	>	if (sm == null) {
739	>	Policy savedPolicy = Policy.getPolicy();
740	>	try {
741	>	Policy.setPolicy(permissivePolicy());
742	>	System.setSecurityManager(new SecurityManager());
743	>	runWithSecurityManagerWithPermissions(r, permissions);
744	>	} finally {
745	>	System.setSecurityManager(null);
746	>	Policy.setPolicy(savedPolicy);
747	>	}
748	>	} else {
749	>	Policy savedPolicy = Policy.getPolicy();
750	>	AdjustablePolicy policy = new AdjustablePolicy(permissions);
751	>	Policy.setPolicy(policy);
752	>
753	>	try {
754	>	r.run();
755	>	} finally {
756	>	policy.addPermission(new SecurityPermission("setPolicy"));
757	>	Policy.setPolicy(savedPolicy);
758	>	}
759	>	}
760		}
761
762	<	public static class NoOpCallable implements Callable {
763	<	public Object call() { return Boolean.TRUE; }
762	>	/**
763	>	* Runs a runnable without any permissions.
764	>	*/
765	>	public void runWithoutPermissions(Runnable r) {
766	>	runWithPermissions(r);
767		}
768
769	<	public class ShortRunnable implements Runnable {
770	<	public void run() {
771	<	try {
772	<	Thread.sleep(SHORT_DELAY_MS);
769	>	/**
770	>	* A security policy where new permissions can be dynamically added
771	>	* or all cleared.
772	>	*/
773	>	public static class AdjustablePolicy extends java.security.Policy {
774	>	Permissions perms = new Permissions();
775	>	AdjustablePolicy(Permission... permissions) {
776	>	for (Permission permission : permissions)
777	>	perms.add(permission);
778	>	}
779	>	void addPermission(Permission perm) { perms.add(perm); }
780	>	void clearPermissions() { perms = new Permissions(); }
781	>	public PermissionCollection getPermissions(CodeSource cs) {
782	>	return perms;
783	>	}
784	>	public PermissionCollection getPermissions(ProtectionDomain pd) {
785	>	return perms;
786	>	}
787	>	public boolean implies(ProtectionDomain pd, Permission p) {
788	>	return perms.implies(p);
789	>	}
790	>	public void refresh() {}
791	>	public String toString() {
792	>	List<Permission> ps = new ArrayList<Permission>();
793	>	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
794	>	ps.add(e.nextElement());
795	>	return "AdjustablePolicy with permissions " + ps;
796	>	}
797	>	}
798	>
799	>	/**
800	>	* Returns a policy containing all the permissions we ever need.
801	>	*/
802	>	public static Policy permissivePolicy() {
803	>	return new AdjustablePolicy
804	>	// Permissions j.u.c. needs directly
805	>	(new RuntimePermission("modifyThread"),
806	>	new RuntimePermission("getClassLoader"),
807	>	new RuntimePermission("setContextClassLoader"),
808	>	// Permissions needed to change permissions!
809	>	new SecurityPermission("getPolicy"),
810	>	new SecurityPermission("setPolicy"),
811	>	new RuntimePermission("setSecurityManager"),
812	>	// Permissions needed by the junit test harness
813	>	new RuntimePermission("accessDeclaredMembers"),
814	>	new PropertyPermission("*", "read"),
815	>	new java.io.FilePermission("<<ALL FILES>>", "read"));
816	>	}
817	>
818	>	/**
819	>	* Sleeps until the given time has elapsed.
820	>	* Throws AssertionFailedError if interrupted.
821	>	*/
822	>	void sleep(long millis) {
823	>	try {
824	>	delay(millis);
825	>	} catch (InterruptedException ie) {
826	>	AssertionFailedError afe =
827	>	new AssertionFailedError("Unexpected InterruptedException");
828	>	afe.initCause(ie);
829	>	throw afe;
830	>	}
831	>	}
832	>
833	>	/**
834	>	* Spin-waits up to the specified number of milliseconds for the given
835	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
836	>	*/
837	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
838	>	long startTime = System.nanoTime();
839	>	for (;;) {
840	>	Thread.State s = thread.getState();
841	>	if (s == Thread.State.BLOCKED ||
842	>	s == Thread.State.WAITING ||
843	>	s == Thread.State.TIMED_WAITING)
844	>	return;
845	>	else if (s == Thread.State.TERMINATED)
846	>	fail("Unexpected thread termination");
847	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
848	>	threadAssertTrue(thread.isAlive());
849	>	return;
850		}
851	<	catch(Exception e) {
852	<	threadFail("unexpectedException");
851	>	Thread.yield();
852	>	}
853	>	}
854	>
855	>	/**
856	>	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
857	>	* state: BLOCKED, WAITING, or TIMED_WAITING.
858	>	*/
859	>	void waitForThreadToEnterWaitState(Thread thread) {
860	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
861	>	}
862	>
863	>	/**
864	>	* Returns the number of milliseconds since time given by
865	>	* startNanoTime, which must have been previously returned from a
866	>	* call to {@link System.nanoTime()}.
867	>	*/
868	>	long millisElapsedSince(long startNanoTime) {
869	>	return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
870	>	}
871	>
872	>	/**
873	>	* Returns a new started daemon Thread running the given runnable.
874	>	*/
875	>	Thread newStartedThread(Runnable runnable) {
876	>	Thread t = new Thread(runnable);
877	>	t.setDaemon(true);
878	>	t.start();
879	>	return t;
880	>	}
881	>
882	>	/**
883	>	* Waits for the specified time (in milliseconds) for the thread
884	>	* to terminate (using {@link Thread#join(long)}), else interrupts
885	>	* the thread (in the hope that it may terminate later) and fails.
886	>	*/
887	>	void awaitTermination(Thread t, long timeoutMillis) {
888	>	try {
889	>	t.join(timeoutMillis);
890	>	} catch (InterruptedException ie) {
891	>	threadUnexpectedException(ie);
892	>	} finally {
893	>	if (t.getState() != Thread.State.TERMINATED) {
894	>	t.interrupt();
895	>	fail("Test timed out");
896		}
897		}
898		}
899
900	<	public class ShortInterruptedRunnable implements Runnable {
901	<	public void run() {
900	>	/**
901	>	* Waits for LONG_DELAY_MS milliseconds for the thread to
902	>	* terminate (using {@link Thread#join(long)}), else interrupts
903	>	* the thread (in the hope that it may terminate later) and fails.
904	>	*/
905	>	void awaitTermination(Thread t) {
906	>	awaitTermination(t, LONG_DELAY_MS);
907	>	}
908	>
909	>	// Some convenient Runnable classes
910	>
911	>	public abstract class CheckedRunnable implements Runnable {
912	>	protected abstract void realRun() throws Throwable;
913	>
914	>	public final void run() {
915		try {
916	<	Thread.sleep(SHORT_DELAY_MS);
917	<	threadFail("should throw IE");
916	>	realRun();
917	>	} catch (Throwable t) {
918	>	threadUnexpectedException(t);
919		}
920	<	catch(InterruptedException success) {
920	>	}
921	>	}
922	>
923	>	public abstract class RunnableShouldThrow implements Runnable {
924	>	protected abstract void realRun() throws Throwable;
925	>
926	>	final Class<?> exceptionClass;
927	>
928	>	<T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) {
929	>	this.exceptionClass = exceptionClass;
930	>	}
931	>
932	>	public final void run() {
933	>	try {
934	>	realRun();
935	>	threadShouldThrow(exceptionClass.getSimpleName());
936	>	} catch (Throwable t) {
937	>	if (! exceptionClass.isInstance(t))
938	>	threadUnexpectedException(t);
939		}
940		}
941		}
942
943	<	public class SmallRunnable implements Runnable {
944	<	public void run() {
943	>	public abstract class ThreadShouldThrow extends Thread {
944	>	protected abstract void realRun() throws Throwable;
945	>
946	>	final Class<?> exceptionClass;
947	>
948	>	<T extends Throwable> ThreadShouldThrow(Class<T> exceptionClass) {
949	>	this.exceptionClass = exceptionClass;
950	>	}
951	>
952	>	public final void run() {
953		try {
954	<	Thread.sleep(SMALL_DELAY_MS);
954	>	realRun();
955	>	threadShouldThrow(exceptionClass.getSimpleName());
956	>	} catch (Throwable t) {
957	>	if (! exceptionClass.isInstance(t))
958	>	threadUnexpectedException(t);
959		}
960	<	catch(Exception e) {
961	<	threadFail("unexpectedException");
960	>	}
961	>	}
962	>
963	>	public abstract class CheckedInterruptedRunnable implements Runnable {
964	>	protected abstract void realRun() throws Throwable;
965	>
966	>	public final void run() {
967	>	try {
968	>	realRun();
969	>	threadShouldThrow("InterruptedException");
970	>	} catch (InterruptedException success) {
971	>	threadAssertFalse(Thread.interrupted());
972	>	} catch (Throwable t) {
973	>	threadUnexpectedException(t);
974		}
975		}
976		}
977
978	<	public class SmallCallable implements Callable {
979	<	public Object call() {
978	>	public abstract class CheckedCallable<T> implements Callable<T> {
979	>	protected abstract T realCall() throws Throwable;
980	>
981	>	public final T call() {
982		try {
983	<	Thread.sleep(SMALL_DELAY_MS);
983	>	return realCall();
984	>	} catch (Throwable t) {
985	>	threadUnexpectedException(t);
986	>	return null;
987		}
988	<	catch(Exception e) {
989	<	threadFail("unexpectedException");
988	>	}
989	>	}
990	>
991	>	public abstract class CheckedInterruptedCallable<T>
992	>	implements Callable<T> {
993	>	protected abstract T realCall() throws Throwable;
994	>
995	>	public final T call() {
996	>	try {
997	>	T result = realCall();
998	>	threadShouldThrow("InterruptedException");
999	>	return result;
1000	>	} catch (InterruptedException success) {
1001	>	threadAssertFalse(Thread.interrupted());
1002	>	} catch (Throwable t) {
1003	>	threadUnexpectedException(t);
1004		}
1005	+	return null;
1006	+	}
1007	+	}
1008	+
1009	+	public static class NoOpRunnable implements Runnable {
1010	+	public void run() {}
1011	+	}
1012	+
1013	+	public static class NoOpCallable implements Callable {
1014	+	public Object call() { return Boolean.TRUE; }
1015	+	}
1016	+
1017	+	public static final String TEST_STRING = "a test string";
1018	+
1019	+	public static class StringTask implements Callable<String> {
1020	+	public String call() { return TEST_STRING; }
1021	+	}
1022	+
1023	+	public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
1024	+	return new CheckedCallable<String>() {
1025	+	protected String realCall() {
1026	+	try {
1027	+	latch.await();
1028	+	} catch (InterruptedException quittingTime) {}
1029	+	return TEST_STRING;
1030	+	}};
1031	+	}
1032	+
1033	+	public Runnable awaiter(final CountDownLatch latch) {
1034	+	return new CheckedRunnable() {
1035	+	public void realRun() throws InterruptedException {
1036	+	await(latch);
1037	+	}};
1038	+	}
1039	+
1040	+	public void await(CountDownLatch latch) {
1041	+	try {
1042	+	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1043	+	} catch (Throwable t) {
1044	+	threadUnexpectedException(t);
1045	+	}
1046	+	}
1047	+
1048	+	public void await(Semaphore semaphore) {
1049	+	try {
1050	+	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1051	+	} catch (Throwable t) {
1052	+	threadUnexpectedException(t);
1053	+	}
1054	+	}
1055	+
1056	+	//     /**
1057	+	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1058	+	//      */
1059	+	//     public void await(AtomicBoolean flag) {
1060	+	//         await(flag, LONG_DELAY_MS);
1061	+	//     }
1062	+
1063	+	//     /**
1064	+	//      * Spin-waits up to the specified timeout until flag becomes true.
1065	+	//      */
1066	+	//     public void await(AtomicBoolean flag, long timeoutMillis) {
1067	+	//         long startTime = System.nanoTime();
1068	+	//         while (!flag.get()) {
1069	+	//             if (millisElapsedSince(startTime) > timeoutMillis)
1070	+	//                 throw new AssertionFailedError("timed out");
1071	+	//             Thread.yield();
1072	+	//         }
1073	+	//     }
1074	+
1075	+	public static class NPETask implements Callable<String> {
1076	+	public String call() { throw new NullPointerException(); }
1077	+	}
1078	+
1079	+	public static class CallableOne implements Callable<Integer> {
1080	+	public Integer call() { return one; }
1081	+	}
1082	+
1083	+	public class ShortRunnable extends CheckedRunnable {
1084	+	protected void realRun() throws Throwable {
1085	+	delay(SHORT_DELAY_MS);
1086	+	}
1087	+	}
1088	+
1089	+	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1090	+	protected void realRun() throws InterruptedException {
1091	+	delay(SHORT_DELAY_MS);
1092	+	}
1093	+	}
1094	+
1095	+	public class SmallRunnable extends CheckedRunnable {
1096	+	protected void realRun() throws Throwable {
1097	+	delay(SMALL_DELAY_MS);
1098	+	}
1099	+	}
1100	+
1101	+	public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1102	+	protected void realRun() {
1103	+	try {
1104	+	delay(SMALL_DELAY_MS);
1105	+	} catch (InterruptedException ok) {}
1106	+	}
1107	+	}
1108	+
1109	+	public class SmallCallable extends CheckedCallable {
1110	+	protected Object realCall() throws InterruptedException {
1111	+	delay(SMALL_DELAY_MS);
1112		return Boolean.TRUE;
1113		}
1114		}
1115
1116	<	public class SmallInterruptedRunnable implements Runnable {
1116	>	public class MediumRunnable extends CheckedRunnable {
1117	>	protected void realRun() throws Throwable {
1118	>	delay(MEDIUM_DELAY_MS);
1119	>	}
1120	>	}
1121	>
1122	>	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1123	>	protected void realRun() throws InterruptedException {
1124	>	delay(MEDIUM_DELAY_MS);
1125	>	}
1126	>	}
1127	>
1128	>	public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1129	>	return new CheckedRunnable() {
1130	>	protected void realRun() {
1131	>	try {
1132	>	delay(timeoutMillis);
1133	>	} catch (InterruptedException ok) {}
1134	>	}};
1135	>	}
1136	>
1137	>	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1138	>	protected void realRun() {
1139	>	try {
1140	>	delay(MEDIUM_DELAY_MS);
1141	>	} catch (InterruptedException ok) {}
1142	>	}
1143	>	}
1144	>
1145	>	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1146	>	protected void realRun() {
1147	>	try {
1148	>	delay(LONG_DELAY_MS);
1149	>	} catch (InterruptedException ok) {}
1150	>	}
1151	>	}
1152	>
1153	>	/**
1154	>	* For use as ThreadFactory in constructors
1155	>	*/
1156	>	public static class SimpleThreadFactory implements ThreadFactory {
1157	>	public Thread newThread(Runnable r) {
1158	>	return new Thread(r);
1159	>	}
1160	>	}
1161	>
1162	>	public interface TrackedRunnable extends Runnable {
1163	>	boolean isDone();
1164	>	}
1165	>
1166	>	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1167	>	return new TrackedRunnable() {
1168	>	private volatile boolean done = false;
1169	>	public boolean isDone() { return done; }
1170	>	public void run() {
1171	>	try {
1172	>	delay(timeoutMillis);
1173	>	done = true;
1174	>	} catch (InterruptedException ok) {}
1175	>	}
1176	>	};
1177	>	}
1178	>
1179	>	public static class TrackedShortRunnable implements Runnable {
1180	>	public volatile boolean done = false;
1181		public void run() {
1182		try {
1183	<	Thread.sleep(SMALL_DELAY_MS);
1184	<	threadFail("should throw IE");
1185	<	}
237	<	catch(InterruptedException success) {
238	<	}
1183	>	delay(SHORT_DELAY_MS);
1184	>	done = true;
1185	>	} catch (InterruptedException ok) {}
1186		}
1187		}
1188
1189	+	public static class TrackedSmallRunnable implements Runnable {
1190	+	public volatile boolean done = false;
1191	+	public void run() {
1192	+	try {
1193	+	delay(SMALL_DELAY_MS);
1194	+	done = true;
1195	+	} catch (InterruptedException ok) {}
1196	+	}
1197	+	}
1198
1199	<	public class MediumRunnable implements Runnable {
1199	>	public static class TrackedMediumRunnable implements Runnable {
1200	>	public volatile boolean done = false;
1201		public void run() {
1202		try {
1203	<	Thread.sleep(MEDIUM_DELAY_MS);
1204	<	}
1205	<	catch(Exception e) {
249	<	threadFail("unexpectedException");
250	<	}
1203	>	delay(MEDIUM_DELAY_MS);
1204	>	done = true;
1205	>	} catch (InterruptedException ok) {}
1206		}
1207		}
1208
1209	<	public class MediumInterruptedRunnable implements Runnable {
1209	>	public static class TrackedLongRunnable implements Runnable {
1210	>	public volatile boolean done = false;
1211		public void run() {
1212		try {
1213	<	Thread.sleep(MEDIUM_DELAY_MS);
1214	<	threadFail("should throw IE");
1213	>	delay(LONG_DELAY_MS);
1214	>	done = true;
1215	>	} catch (InterruptedException ok) {}
1216	>	}
1217	>	}
1218	>
1219	>	public static class TrackedNoOpRunnable implements Runnable {
1220	>	public volatile boolean done = false;
1221	>	public void run() {
1222	>	done = true;
1223	>	}
1224	>	}
1225	>
1226	>	public static class TrackedCallable implements Callable {
1227	>	public volatile boolean done = false;
1228	>	public Object call() {
1229	>	try {
1230	>	delay(SMALL_DELAY_MS);
1231	>	done = true;
1232	>	} catch (InterruptedException ok) {}
1233	>	return Boolean.TRUE;
1234	>	}
1235	>	}
1236	>
1237	>	/**
1238	>	* Analog of CheckedRunnable for RecursiveAction
1239	>	*/
1240	>	public abstract class CheckedRecursiveAction extends RecursiveAction {
1241	>	protected abstract void realCompute() throws Throwable;
1242	>
1243	>	public final void compute() {
1244	>	try {
1245	>	realCompute();
1246	>	} catch (Throwable t) {
1247	>	threadUnexpectedException(t);
1248		}
1249	<	catch(InterruptedException success) {
1249	>	}
1250	>	}
1251	>
1252	>	/**
1253	>	* Analog of CheckedCallable for RecursiveTask
1254	>	*/
1255	>	public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1256	>	protected abstract T realCompute() throws Throwable;
1257	>
1258	>	public final T compute() {
1259	>	try {
1260	>	return realCompute();
1261	>	} catch (Throwable t) {
1262	>	threadUnexpectedException(t);
1263	>	return null;
1264		}
1265		}
1266		}
1267
1268	<	public class MediumPossiblyInterruptedRunnable implements Runnable {
1269	<	public void run() {
1268	>	/**
1269	>	* For use as RejectedExecutionHandler in constructors
1270	>	*/
1271	>	public static class NoOpREHandler implements RejectedExecutionHandler {
1272	>	public void rejectedExecution(Runnable r,
1273	>	ThreadPoolExecutor executor) {}
1274	>	}
1275	>
1276	>	/**
1277	>	* A CyclicBarrier that uses timed await and fails with
1278	>	* AssertionFailedErrors instead of throwing checked exceptions.
1279	>	*/
1280	>	public class CheckedBarrier extends CyclicBarrier {
1281	>	public CheckedBarrier(int parties) { super(parties); }
1282	>
1283	>	public int await() {
1284		try {
1285	<	Thread.sleep(MEDIUM_DELAY_MS);
1285	>	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1286	>	} catch (TimeoutException e) {
1287	>	throw new AssertionFailedError("timed out");
1288	>	} catch (Exception e) {
1289	>	AssertionFailedError afe =
1290	>	new AssertionFailedError("Unexpected exception: " + e);
1291	>	afe.initCause(e);
1292	>	throw afe;
1293		}
1294	<	catch(InterruptedException success) {
1294	>	}
1295	>	}
1296	>
1297	>	void checkEmpty(BlockingQueue q) {
1298	>	try {
1299	>	assertTrue(q.isEmpty());
1300	>	assertEquals(0, q.size());
1301	>	assertNull(q.peek());
1302	>	assertNull(q.poll());
1303	>	assertNull(q.poll(0, MILLISECONDS));
1304	>	assertEquals(q.toString(), "[]");
1305	>	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1306	>	assertFalse(q.iterator().hasNext());
1307	>	try {
1308	>	q.element();
1309	>	shouldThrow();
1310	>	} catch (NoSuchElementException success) {}
1311	>	try {
1312	>	q.iterator().next();
1313	>	shouldThrow();
1314	>	} catch (NoSuchElementException success) {}
1315	>	try {
1316	>	q.remove();
1317	>	shouldThrow();
1318	>	} catch (NoSuchElementException success) {}
1319	>	} catch (InterruptedException ie) {
1320	>	threadUnexpectedException(ie);
1321	>	}
1322	>	}
1323	>
1324	>	void assertSerialEquals(Object x, Object y) {
1325	>	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1326	>	}
1327	>
1328	>	void assertNotSerialEquals(Object x, Object y) {
1329	>	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1330	>	}
1331	>
1332	>	byte[] serialBytes(Object o) {
1333	>	try {
1334	>	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1335	>	ObjectOutputStream oos = new ObjectOutputStream(bos);
1336	>	oos.writeObject(o);
1337	>	oos.flush();
1338	>	oos.close();
1339	>	return bos.toByteArray();
1340	>	} catch (Throwable t) {
1341	>	threadUnexpectedException(t);
1342	>	return new byte[0];
1343	>	}
1344	>	}
1345	>
1346	>	@SuppressWarnings("unchecked")
1347	>	<T> T serialClone(T o) {
1348	>	try {
1349	>	ObjectInputStream ois = new ObjectInputStream
1350	>	(new ByteArrayInputStream(serialBytes(o)));
1351	>	T clone = (T) ois.readObject();
1352	>	assertSame(o.getClass(), clone.getClass());
1353	>	return clone;
1354	>	} catch (Throwable t) {
1355	>	threadUnexpectedException(t);
1356	>	return null;
1357	>	}
1358	>	}
1359	>
1360	>	public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1361	>	Runnable... throwingActions) {
1362	>	for (Runnable throwingAction : throwingActions) {
1363	>	boolean threw = false;
1364	>	try { throwingAction.run(); }
1365	>	catch (Throwable t) {
1366	>	threw = true;
1367	>	if (!expectedExceptionClass.isInstance(t)) {
1368	>	AssertionFailedError afe =
1369	>	new AssertionFailedError
1370	>	("Expected " + expectedExceptionClass.getName() +
1371	>	", got " + t.getClass().getName());
1372	>	afe.initCause(t);
1373	>	threadUnexpectedException(afe);
1374	>	}
1375		}
1376	+	if (!threw)
1377	+	shouldThrow(expectedExceptionClass.getName());
1378		}
1379		}
274	–
1380		}

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