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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.3 by dl, Sat Sep 20 18:20:08 2003 UTC vs.
Revision 1.98 by jsr166, Sun Feb 3 06:20:32 2013 UTC

#	Line 1 | Line 1
1		/*
2	<	* Written by members of JCP JSR-166 Expert Group and released to the
3	<	* public domain. Use, modify, and redistribute this code in any way
4	<	* without acknowledgement. Other contributors include Andrew Wright,
5	<	* Jeffrey Hayes, Pat Fischer, Mike Judd.
2	>	* Written by Doug Lea with assistance from members of JCP JSR-166
3	>	* Expert Group and released to the public domain, as explained at
4	>	* http://creativecommons.org/publicdomain/zero/1.0/
5	>	* Other contributors include Andrew Wright, Jeffrey Hayes,
6	>	* Pat Fisher, Mike Judd.
7		*/
8
9		import junit.framework.*;
10	<	import java.util.*;
10	>	import java.io.ByteArrayInputStream;
11	>	import java.io.ByteArrayOutputStream;
12	>	import java.io.ObjectInputStream;
13	>	import java.io.ObjectOutputStream;
14	>	import java.lang.management.ManagementFactory;
15	>	import java.lang.management.ThreadInfo;
16	>	import java.lang.reflect.Method;
17	>	import java.util.ArrayList;
18	>	import java.util.Arrays;
19	>	import java.util.Date;
20	>	import java.util.Enumeration;
21	>	import java.util.List;
22	>	import java.util.NoSuchElementException;
23	>	import java.util.PropertyPermission;
24		import java.util.concurrent.*;
25	<	import java.io.*;
26	<
25	>	import java.util.concurrent.atomic.AtomicBoolean;
26	>	import java.util.concurrent.atomic.AtomicReference;
27	>	import static java.util.concurrent.TimeUnit.MILLISECONDS;
28	>	import static java.util.concurrent.TimeUnit.NANOSECONDS;
29	>	import java.security.CodeSource;
30	>	import java.security.Permission;
31	>	import java.security.PermissionCollection;
32	>	import java.security.Permissions;
33	>	import java.security.Policy;
34	>	import java.security.ProtectionDomain;
35	>	import java.security.SecurityPermission;
36
37		/**
38	<	* Base class for JSR166 Junit TCK tests.  Defines some constants and
39	<	* utility methods, as well as a simple framework for helping to make
40	<	* sure that assertions failing in generated threads cause the
41	<	* associated test that generated them to itself fail (which JUnit doe
42	<	* not otherwise arrange).  The rules for creating such tests are:
38	>	* Base class for JSR166 Junit TCK tests.  Defines some constants,
39	>	* utility methods and classes, as well as a simple framework for
40	>	* helping to make sure that assertions failing in generated threads
41	>	* cause the associated test that generated them to itself fail (which
42	>	* JUnit does not otherwise arrange).  The rules for creating such
43	>	* tests are:
44		*
45		* <ol>
46		*
47		* <li> All assertions in code running in generated threads must use
48	<	* the forms {@link threadFail} , {@link threadAssertTrue} {@link
49	<	* threadAssertEquals}, or {@link threadAssertNull}, (not
50	<	* <tt>fail</tt>, <tt>assertTrue</tt>, etc.) It is OK (but not
48	>	* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link
49	>	* #threadAssertEquals}, or {@link #threadAssertNull}, (not
50	>	* {@code fail}, {@code assertTrue}, etc.) It is OK (but not
51		* particularly recommended) for other code to use these forms too.
52		* Only the most typically used JUnit assertion methods are defined
53		* this way, but enough to live with.</li>
54		*
55	<	* <li> If you override {@link setUp} or {@link tearDown}, make sure
56	<	* to invoke <tt>super.setUp</tt> and <tt>super.tearDown</tt> within
55	>	* <li> If you override {@link #setUp} or {@link #tearDown}, make sure
56	>	* to invoke {@code super.setUp} and {@code super.tearDown} within
57		* them. These methods are used to clear and check for thread
58		* assertion failures.</li>
59		*
60	<	* <li>All delays and timeouts must use one of the constants {@link
61	<	* SHORT_DELAY_MS}, {@link SMALL_DELAY_MS}, {@link MEDIUM_DELAY_MS},
62	<	* {@link LONG_DELAY_MS}. The idea here is that a SHORT is always
63	<	* discriminatable from zero time, and always allows enough time for
64	<	* the small amounts of computation (creating a thread, calling a few
60	>	* <li>All delays and timeouts must use one of the constants {@code
61	>	* SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS},
62	>	* {@code LONG_DELAY_MS}. The idea here is that a SHORT is always
63	>	* discriminable from zero time, and always allows enough time for the
64	>	* small amounts of computation (creating a thread, calling a few
65		* methods, etc) needed to reach a timeout point. Similarly, a SMALL
66		* is always discriminable as larger than SHORT and smaller than
67		* MEDIUM.  And so on. These constants are set to conservative values,
68		* but even so, if there is ever any doubt, they can all be increased
69	<	* in one spot to rerun tests on slower platforms</li>
69	>	* in one spot to rerun tests on slower platforms.</li>
70		*
71		* <li> All threads generated must be joined inside each test case
72	<	* method (or <tt>fail</tt> to do so) before returning from the
73	<	* method. The {@link joinPool} method can be used to do this when
72	>	* method (or {@code fail} to do so) before returning from the
73	>	* method. The {@code joinPool} method can be used to do this when
74		* using Executors.</li>
75		*
76		* </ol>
77	+	*
78	+	* <p><b>Other notes</b>
79	+	* <ul>
80	+	*
81	+	* <li> Usually, there is one testcase method per JSR166 method
82	+	* covering "normal" operation, and then as many exception-testing
83	+	* methods as there are exceptions the method can throw. Sometimes
84	+	* there are multiple tests per JSR166 method when the different
85	+	* "normal" behaviors differ significantly. And sometimes testcases
86	+	* cover multiple methods when they cannot be tested in
87	+	* isolation.</li>
88	+	*
89	+	* <li> The documentation style for testcases is to provide as javadoc
90	+	* a simple sentence or two describing the property that the testcase
91	+	* method purports to test. The javadocs do not say anything about how
92	+	* the property is tested. To find out, read the code.</li>
93	+	*
94	+	* <li> These tests are "conformance tests", and do not attempt to
95	+	* test throughput, latency, scalability or other performance factors
96	+	* (see the separate "jtreg" tests for a set intended to check these
97	+	* for the most central aspects of functionality.) So, most tests use
98	+	* the smallest sensible numbers of threads, collection sizes, etc
99	+	* needed to check basic conformance.</li>
100	+	*
101	+	* <li>The test classes currently do not declare inclusion in
102	+	* any particular package to simplify things for people integrating
103	+	* them in TCK test suites.</li>
104	+	*
105	+	* <li> As a convenience, the {@code main} of this class (JSR166TestCase)
106	+	* runs all JSR166 unit tests.</li>
107	+	*
108	+	* </ul>
109		*/
110		public class JSR166TestCase extends TestCase {
111	+	private static final boolean useSecurityManager =
112	+	Boolean.getBoolean("jsr166.useSecurityManager");
113	+
114	+	protected static final boolean expensiveTests =
115	+	Boolean.getBoolean("jsr166.expensiveTests");
116	+
117	+	/**
118	+	* If true, report on stdout all "slow" tests, that is, ones that
119	+	* take more than profileThreshold milliseconds to execute.
120	+	*/
121	+	private static final boolean profileTests =
122	+	Boolean.getBoolean("jsr166.profileTests");
123	+
124	+	/**
125	+	* The number of milliseconds that tests are permitted for
126	+	* execution without being reported, when profileTests is set.
127	+	*/
128	+	private static final long profileThreshold =
129	+	Long.getLong("jsr166.profileThreshold", 100);
130	+
131	+	protected void runTest() throws Throwable {
132	+	if (profileTests)
133	+	runTestProfiled();
134	+	else
135	+	super.runTest();
136	+	}
137	+
138	+	protected void runTestProfiled() throws Throwable {
139	+	long t0 = System.nanoTime();
140	+	try {
141	+	super.runTest();
142	+	} finally {
143	+	long elapsedMillis =
144	+	(System.nanoTime() - t0) / (1000L * 1000L);
145	+	if (elapsedMillis >= profileThreshold)
146	+	System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
147	+	}
148	+	}
149	+
150	+	/**
151	+	* Runs all JSR166 unit tests using junit.textui.TestRunner.
152	+	* Optional command line arg provides the number of iterations to
153	+	* repeat running the tests.
154	+	*/
155	+	public static void main(String[] args) {
156	+	if (useSecurityManager) {
157	+	System.err.println("Setting a permissive security manager");
158	+	Policy.setPolicy(permissivePolicy());
159	+	System.setSecurityManager(new SecurityManager());
160	+	}
161	+	int iters = (args.length == 0) ? 1 : Integer.parseInt(args[0]);
162	+
163	+	Test s = suite();
164	+	for (int i = 0; i < iters; ++i) {
165	+	junit.textui.TestRunner.run(s);
166	+	System.gc();
167	+	System.runFinalization();
168	+	}
169	+	System.exit(0);
170	+	}
171	+
172	+	public static TestSuite newTestSuite(Object... suiteOrClasses) {
173	+	TestSuite suite = new TestSuite();
174	+	for (Object suiteOrClass : suiteOrClasses) {
175	+	if (suiteOrClass instanceof TestSuite)
176	+	suite.addTest((TestSuite) suiteOrClass);
177	+	else if (suiteOrClass instanceof Class)
178	+	suite.addTest(new TestSuite((Class<?>) suiteOrClass));
179	+	else
180	+	throw new ClassCastException("not a test suite or class");
181	+	}
182	+	return suite;
183	+	}
184	+
185	+	public static void addNamedTestClasses(TestSuite suite,
186	+	String... testClassNames) {
187	+	for (String testClassName : testClassNames) {
188	+	try {
189	+	Class<?> testClass = Class.forName(testClassName);
190	+	Method m = testClass.getDeclaredMethod("suite",
191	+	new Class<?>[0]);
192	+	suite.addTest(newTestSuite((Test)m.invoke(null)));
193	+	} catch (Exception e) {
194	+	throw new Error("Missing test class", e);
195	+	}
196	+	}
197	+	}
198	+
199	+	public static final double JAVA_CLASS_VERSION;
200	+	static {
201	+	try {
202	+	JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
203	+	new java.security.PrivilegedAction<Double>() {
204	+	public Double run() {
205	+	return Double.valueOf(System.getProperty("java.class.version"));}});
206	+	} catch (Throwable t) {
207	+	throw new Error(t);
208	+	}
209	+	}
210	+
211	+	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
212	+	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
213	+	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
214	+
215	+	/**
216	+	* Collects all JSR166 unit tests as one suite.
217	+	*/
218	+	public static Test suite() {
219	+	// Java7+ test classes
220	+	TestSuite suite = newTestSuite(
221	+	ForkJoinPoolTest.suite(),
222	+	ForkJoinTaskTest.suite(),
223	+	RecursiveActionTest.suite(),
224	+	RecursiveTaskTest.suite(),
225	+	LinkedTransferQueueTest.suite(),
226	+	PhaserTest.suite(),
227	+	ThreadLocalRandomTest.suite(),
228	+	AbstractExecutorServiceTest.suite(),
229	+	AbstractQueueTest.suite(),
230	+	AbstractQueuedSynchronizerTest.suite(),
231	+	AbstractQueuedLongSynchronizerTest.suite(),
232	+	ArrayBlockingQueueTest.suite(),
233	+	ArrayDequeTest.suite(),
234	+	AtomicBooleanTest.suite(),
235	+	AtomicIntegerArrayTest.suite(),
236	+	AtomicIntegerFieldUpdaterTest.suite(),
237	+	AtomicIntegerTest.suite(),
238	+	AtomicLongArrayTest.suite(),
239	+	AtomicLongFieldUpdaterTest.suite(),
240	+	AtomicLongTest.suite(),
241	+	AtomicMarkableReferenceTest.suite(),
242	+	AtomicReferenceArrayTest.suite(),
243	+	AtomicReferenceFieldUpdaterTest.suite(),
244	+	AtomicReferenceTest.suite(),
245	+	AtomicStampedReferenceTest.suite(),
246	+	ConcurrentHashMapTest.suite(),
247	+	ConcurrentLinkedDequeTest.suite(),
248	+	ConcurrentLinkedQueueTest.suite(),
249	+	ConcurrentSkipListMapTest.suite(),
250	+	ConcurrentSkipListSubMapTest.suite(),
251	+	ConcurrentSkipListSetTest.suite(),
252	+	ConcurrentSkipListSubSetTest.suite(),
253	+	CopyOnWriteArrayListTest.suite(),
254	+	CopyOnWriteArraySetTest.suite(),
255	+	CountDownLatchTest.suite(),
256	+	CyclicBarrierTest.suite(),
257	+	DelayQueueTest.suite(),
258	+	EntryTest.suite(),
259	+	ExchangerTest.suite(),
260	+	ExecutorsTest.suite(),
261	+	ExecutorCompletionServiceTest.suite(),
262	+	FutureTaskTest.suite(),
263	+	LinkedBlockingDequeTest.suite(),
264	+	LinkedBlockingQueueTest.suite(),
265	+	LinkedListTest.suite(),
266	+	LockSupportTest.suite(),
267	+	PriorityBlockingQueueTest.suite(),
268	+	PriorityQueueTest.suite(),
269	+	ReentrantLockTest.suite(),
270	+	ReentrantReadWriteLockTest.suite(),
271	+	ScheduledExecutorTest.suite(),
272	+	ScheduledExecutorSubclassTest.suite(),
273	+	SemaphoreTest.suite(),
274	+	SynchronousQueueTest.suite(),
275	+	SystemTest.suite(),
276	+	ThreadLocalTest.suite(),
277	+	ThreadPoolExecutorTest.suite(),
278	+	ThreadPoolExecutorSubclassTest.suite(),
279	+	ThreadTest.suite(),
280	+	TimeUnitTest.suite(),
281	+	TreeMapTest.suite(),
282	+	TreeSetTest.suite(),
283	+	TreeSubMapTest.suite(),
284	+	TreeSubSetTest.suite());
285	+
286	+	// Java8+ test classes
287	+	if (atLeastJava8()) {
288	+	String[] java8TestClassNames = {
289	+	"StampedLockTest",
290	+	};
291	+	addNamedTestClasses(suite, java8TestClassNames);
292	+	}
293	+
294	+	return suite;
295	+	}
296	+
297
298		public static long SHORT_DELAY_MS;
299		public static long SMALL_DELAY_MS;
#	Line 60 | Line 302 | public class JSR166TestCase extends Test
302
303
304		/**
305	<	* Return the shortest timed delay. This could
306	<	* be reimplmented to use for example a Property.
307	<	*/
305	>	* Returns the shortest timed delay. This could
306	>	* be reimplemented to use for example a Property.
307	>	*/
308		protected long getShortDelay() {
309		return 50;
310		}
311
70	–
312		/**
313	<	* Set delays as multiples fo SHORT_DELAY.
313	>	* Sets delays as multiples of SHORT_DELAY.
314		*/
315	<	protected  void setDelays() {
315	>	protected void setDelays() {
316		SHORT_DELAY_MS = getShortDelay();
317	<	SMALL_DELAY_MS = SHORT_DELAY_MS * 5;
317	>	SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
318		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
319	<	LONG_DELAY_MS = SHORT_DELAY_MS * 50;
319	>	LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
320	>	}
321	>
322	>	/**
323	>	* Returns a timeout in milliseconds to be used in tests that
324	>	* verify that operations block or time out.
325	>	*/
326	>	long timeoutMillis() {
327	>	return SHORT_DELAY_MS / 4;
328		}
329
330		/**
331	<	* Flag set true if any threadAssert methods fail
331	>	* Returns a new Date instance representing a time delayMillis
332	>	* milliseconds in the future.
333		*/
334	<	protected volatile boolean threadFailed;
334	>	Date delayedDate(long delayMillis) {
335	>	return new Date(System.currentTimeMillis() + delayMillis);
336	>	}
337
338		/**
339	<	* Initialize test to indicat that no thread assertions have failed
339	>	* The first exception encountered if any threadAssertXXX method fails.
340		*/
341	<	public void setUp() {
341	>	private final AtomicReference<Throwable> threadFailure
342	>	= new AtomicReference<Throwable>(null);
343	>
344	>	/**
345	>	* Records an exception so that it can be rethrown later in the test
346	>	* harness thread, triggering a test case failure.  Only the first
347	>	* failure is recorded; subsequent calls to this method from within
348	>	* the same test have no effect.
349	>	*/
350	>	public void threadRecordFailure(Throwable t) {
351	>	threadFailure.compareAndSet(null, t);
352	>	}
353	>
354	>	public void setUp() {
355		setDelays();
91	–	threadFailed = false;
356		}
357
358		/**
359	<	* Trigger test case failure if any thread assertions have failed
359	>	* Extra checks that get done for all test cases.
360	>	*
361	>	* Triggers test case failure if any thread assertions have failed,
362	>	* by rethrowing, in the test harness thread, any exception recorded
363	>	* earlier by threadRecordFailure.
364	>	*
365	>	* Triggers test case failure if interrupt status is set in the main thread.
366		*/
367	<	public void tearDown() {
368	<	assertFalse(threadFailed);
367	>	public void tearDown() throws Exception {
368	>	Throwable t = threadFailure.getAndSet(null);
369	>	if (t != null) {
370	>	if (t instanceof Error)
371	>	throw (Error) t;
372	>	else if (t instanceof RuntimeException)
373	>	throw (RuntimeException) t;
374	>	else if (t instanceof Exception)
375	>	throw (Exception) t;
376	>	else {
377	>	AssertionFailedError afe =
378	>	new AssertionFailedError(t.toString());
379	>	afe.initCause(t);
380	>	throw afe;
381	>	}
382	>	}
383	>
384	>	if (Thread.interrupted())
385	>	throw new AssertionFailedError("interrupt status set in main thread");
386		}
387
388	+	/**
389	+	* Just like fail(reason), but additionally recording (using
390	+	* threadRecordFailure) any AssertionFailedError thrown, so that
391	+	* the current testcase will fail.
392	+	*/
393		public void threadFail(String reason) {
394	<	threadFailed = true;
395	<	fail(reason);
394	>	try {
395	>	fail(reason);
396	>	} catch (AssertionFailedError t) {
397	>	threadRecordFailure(t);
398	>	fail(reason);
399	>	}
400		}
401
402	+	/**
403	+	* Just like assertTrue(b), but additionally recording (using
404	+	* threadRecordFailure) any AssertionFailedError thrown, so that
405	+	* the current testcase will fail.
406	+	*/
407		public void threadAssertTrue(boolean b) {
408	<	if (!b) {
108	<	threadFailed = true;
408	>	try {
409		assertTrue(b);
410	+	} catch (AssertionFailedError t) {
411	+	threadRecordFailure(t);
412	+	throw t;
413		}
414		}
415	+
416	+	/**
417	+	* Just like assertFalse(b), but additionally recording (using
418	+	* threadRecordFailure) any AssertionFailedError thrown, so that
419	+	* the current testcase will fail.
420	+	*/
421		public void threadAssertFalse(boolean b) {
422	<	if (b) {
114	<	threadFailed = true;
422	>	try {
423		assertFalse(b);
424	+	} catch (AssertionFailedError t) {
425	+	threadRecordFailure(t);
426	+	throw t;
427		}
428		}
429	+
430	+	/**
431	+	* Just like assertNull(x), but additionally recording (using
432	+	* threadRecordFailure) any AssertionFailedError thrown, so that
433	+	* the current testcase will fail.
434	+	*/
435		public void threadAssertNull(Object x) {
436	<	if (x != null) {
120	<	threadFailed = true;
436	>	try {
437		assertNull(x);
438	+	} catch (AssertionFailedError t) {
439	+	threadRecordFailure(t);
440	+	throw t;
441		}
442		}
443	+
444	+	/**
445	+	* Just like assertEquals(x, y), but additionally recording (using
446	+	* threadRecordFailure) any AssertionFailedError thrown, so that
447	+	* the current testcase will fail.
448	+	*/
449		public void threadAssertEquals(long x, long y) {
450	<	if (x != y) {
126	<	threadFailed = true;
450	>	try {
451		assertEquals(x, y);
452	+	} catch (AssertionFailedError t) {
453	+	threadRecordFailure(t);
454	+	throw t;
455		}
456		}
457	+
458	+	/**
459	+	* Just like assertEquals(x, y), but additionally recording (using
460	+	* threadRecordFailure) any AssertionFailedError thrown, so that
461	+	* the current testcase will fail.
462	+	*/
463		public void threadAssertEquals(Object x, Object y) {
464	<	if (x != y && (x == null || !x.equals(y))) {
132	<	threadFailed = true;
464	>	try {
465		assertEquals(x, y);
466	+	} catch (AssertionFailedError t) {
467	+	threadRecordFailure(t);
468	+	throw t;
469	+	} catch (Throwable t) {
470	+	threadUnexpectedException(t);
471	+	}
472	+	}
473	+
474	+	/**
475	+	* Just like assertSame(x, y), but additionally recording (using
476	+	* threadRecordFailure) any AssertionFailedError thrown, so that
477	+	* the current testcase will fail.
478	+	*/
479	+	public void threadAssertSame(Object x, Object y) {
480	+	try {
481	+	assertSame(x, y);
482	+	} catch (AssertionFailedError t) {
483	+	threadRecordFailure(t);
484	+	throw t;
485		}
486		}
487
488	+	/**
489	+	* Calls threadFail with message "should throw exception".
490	+	*/
491		public void threadShouldThrow() {
492	<	threadFailed = true;
139	<	fail("should throw exception");
492	>	threadFail("should throw exception");
493		}
494
495	<	public void threadUnexpectedException() {
496	<	threadFailed = true;
497	<	fail("Unexpected exception");
495	>	/**
496	>	* Calls threadFail with message "should throw" + exceptionName.
497	>	*/
498	>	public void threadShouldThrow(String exceptionName) {
499	>	threadFail("should throw " + exceptionName);
500		}
501
502	+	/**
503	+	* Records the given exception using {@link #threadRecordFailure},
504	+	* then rethrows the exception, wrapping it in an
505	+	* AssertionFailedError if necessary.
506	+	*/
507	+	public void threadUnexpectedException(Throwable t) {
508	+	threadRecordFailure(t);
509	+	t.printStackTrace();
510	+	if (t instanceof RuntimeException)
511	+	throw (RuntimeException) t;
512	+	else if (t instanceof Error)
513	+	throw (Error) t;
514	+	else {
515	+	AssertionFailedError afe =
516	+	new AssertionFailedError("unexpected exception: " + t);
517	+	afe.initCause(t);
518	+	throw afe;
519	+	}
520	+	}
521
522		/**
523	<	* Wait out termination of a thread pool or fail doing so
523	>	* Delays, via Thread.sleep, for the given millisecond delay, but
524	>	* if the sleep is shorter than specified, may re-sleep or yield
525	>	* until time elapses.
526		*/
527	<	public void joinPool(ExecutorService exec) {
527	>	static void delay(long millis) throws InterruptedException {
528	>	long startTime = System.nanoTime();
529	>	long ns = millis * 1000 * 1000;
530	>	for (;;) {
531	>	if (millis > 0L)
532	>	Thread.sleep(millis);
533	>	else // too short to sleep
534	>	Thread.yield();
535	>	long d = ns - (System.nanoTime() - startTime);
536	>	if (d > 0L)
537	>	millis = d / (1000 * 1000);
538	>	else
539	>	break;
540	>	}
541	>	}
542	>
543	>	/**
544	>	* Waits out termination of a thread pool or fails doing so.
545	>	*/
546	>	void joinPool(ExecutorService exec) {
547		try {
548		exec.shutdown();
549	<	assertTrue(exec.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
550	<	} catch(InterruptedException ie) {
551	<	fail("Unexpected exception");
549	>	assertTrue("ExecutorService did not terminate in a timely manner",
550	>	exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS));
551	>	} catch (SecurityException ok) {
552	>	// Allowed in case test doesn't have privs
553	>	} catch (InterruptedException ie) {
554	>	fail("Unexpected InterruptedException");
555		}
556		}
557
558	<
558	>	/**
559	>	* A debugging tool to print all stack traces, as jstack does.
560	>	*/
561	>	static void printAllStackTraces() {
562	>	for (ThreadInfo info :
563	>	ManagementFactory.getThreadMXBean()
564	>	.dumpAllThreads(true, true))
565	>	System.err.print(info);
566	>	}
567	>
568	>	/**
569	>	* Checks that thread does not terminate within the default
570	>	* millisecond delay of {@code timeoutMillis()}.
571	>	*/
572	>	void assertThreadStaysAlive(Thread thread) {
573	>	assertThreadStaysAlive(thread, timeoutMillis());
574	>	}
575	>
576	>	/**
577	>	* Checks that thread does not terminate within the given millisecond delay.
578	>	*/
579	>	void assertThreadStaysAlive(Thread thread, long millis) {
580	>	try {
581	>	// No need to optimize the failing case via Thread.join.
582	>	delay(millis);
583	>	assertTrue(thread.isAlive());
584	>	} catch (InterruptedException ie) {
585	>	fail("Unexpected InterruptedException");
586	>	}
587	>	}
588	>
589	>	/**
590	>	* Checks that the threads do not terminate within the default
591	>	* millisecond delay of {@code timeoutMillis()}.
592	>	*/
593	>	void assertThreadsStayAlive(Thread... threads) {
594	>	assertThreadsStayAlive(timeoutMillis(), threads);
595	>	}
596	>
597	>	/**
598	>	* Checks that the threads do not terminate within the given millisecond delay.
599	>	*/
600	>	void assertThreadsStayAlive(long millis, Thread... threads) {
601	>	try {
602	>	// No need to optimize the failing case via Thread.join.
603	>	delay(millis);
604	>	for (Thread thread : threads)
605	>	assertTrue(thread.isAlive());
606	>	} catch (InterruptedException ie) {
607	>	fail("Unexpected InterruptedException");
608	>	}
609	>	}
610	>
611	>	/**
612	>	* Checks that future.get times out, with the default timeout of
613	>	* {@code timeoutMillis()}.
614	>	*/
615	>	void assertFutureTimesOut(Future future) {
616	>	assertFutureTimesOut(future, timeoutMillis());
617	>	}
618	>
619	>	/**
620	>	* Checks that future.get times out, with the given millisecond timeout.
621	>	*/
622	>	void assertFutureTimesOut(Future future, long timeoutMillis) {
623	>	long startTime = System.nanoTime();
624	>	try {
625	>	future.get(timeoutMillis, MILLISECONDS);
626	>	shouldThrow();
627	>	} catch (TimeoutException success) {
628	>	} catch (Exception e) {
629	>	threadUnexpectedException(e);
630	>	} finally { future.cancel(true); }
631	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
632	>	}
633	>
634	>	/**
635	>	* Fails with message "should throw exception".
636	>	*/
637		public void shouldThrow() {
638		fail("Should throw exception");
639		}
640
641	<	public void unexpectedException() {
642	<	fail("Unexpected exception");
641	>	/**
642	>	* Fails with message "should throw " + exceptionName.
643	>	*/
644	>	public void shouldThrow(String exceptionName) {
645	>	fail("Should throw " + exceptionName);
646		}
647
169	–
648		/**
649		* The number of elements to place in collections, arrays, etc.
650		*/
#	Line 174 | Line 652 | public class JSR166TestCase extends Test
652
653		// Some convenient Integer constants
654
655	<	public static final Integer zero = new Integer(0);
656	<	public static final Integer one = new Integer(1);
657	<	public static final Integer two = new Integer(2);
658	<	public static final Integer three  = new Integer(3);
655	>	public static final Integer zero  = new Integer(0);
656	>	public static final Integer one   = new Integer(1);
657	>	public static final Integer two   = new Integer(2);
658	>	public static final Integer three = new Integer(3);
659		public static final Integer four  = new Integer(4);
660		public static final Integer five  = new Integer(5);
661	<	public static final Integer six = new Integer(6);
661	>	public static final Integer six   = new Integer(6);
662		public static final Integer seven = new Integer(7);
663		public static final Integer eight = new Integer(8);
664	<	public static final Integer nine = new Integer(9);
664	>	public static final Integer nine  = new Integer(9);
665		public static final Integer m1  = new Integer(-1);
666		public static final Integer m2  = new Integer(-2);
667		public static final Integer m3  = new Integer(-3);
668	<	public static final Integer m4 = new Integer(-4);
669	<	public static final Integer m5 = new Integer(-5);
668	>	public static final Integer m4  = new Integer(-4);
669	>	public static final Integer m5  = new Integer(-5);
670	>	public static final Integer m6  = new Integer(-6);
671		public static final Integer m10 = new Integer(-10);
672
673
674	<	// Some convenient Runnable classes
674	>	/**
675	>	* Runs Runnable r with a security policy that permits precisely
676	>	* the specified permissions.  If there is no current security
677	>	* manager, the runnable is run twice, both with and without a
678	>	* security manager.  We require that any security manager permit
679	>	* getPolicy/setPolicy.
680	>	*/
681	>	public void runWithPermissions(Runnable r, Permission... permissions) {
682	>	SecurityManager sm = System.getSecurityManager();
683	>	if (sm == null) {
684	>	r.run();
685	>	}
686	>	runWithSecurityManagerWithPermissions(r, permissions);
687	>	}
688
689	<	public static class NoOpRunnable implements Runnable {
690	<	public void run() {}
689	>	/**
690	>	* Runs Runnable r with a security policy that permits precisely
691	>	* the specified permissions.  If there is no current security
692	>	* manager, a temporary one is set for the duration of the
693	>	* Runnable.  We require that any security manager permit
694	>	* getPolicy/setPolicy.
695	>	*/
696	>	public void runWithSecurityManagerWithPermissions(Runnable r,
697	>	Permission... permissions) {
698	>	SecurityManager sm = System.getSecurityManager();
699	>	if (sm == null) {
700	>	Policy savedPolicy = Policy.getPolicy();
701	>	try {
702	>	Policy.setPolicy(permissivePolicy());
703	>	System.setSecurityManager(new SecurityManager());
704	>	runWithSecurityManagerWithPermissions(r, permissions);
705	>	} finally {
706	>	System.setSecurityManager(null);
707	>	Policy.setPolicy(savedPolicy);
708	>	}
709	>	} else {
710	>	Policy savedPolicy = Policy.getPolicy();
711	>	AdjustablePolicy policy = new AdjustablePolicy(permissions);
712	>	Policy.setPolicy(policy);
713	>
714	>	try {
715	>	r.run();
716	>	} finally {
717	>	policy.addPermission(new SecurityPermission("setPolicy"));
718	>	Policy.setPolicy(savedPolicy);
719	>	}
720	>	}
721		}
722
723	<	public static class NoOpCallable implements Callable {
724	<	public Object call() { return Boolean.TRUE; }
723	>	/**
724	>	* Runs a runnable without any permissions.
725	>	*/
726	>	public void runWithoutPermissions(Runnable r) {
727	>	runWithPermissions(r);
728		}
729
730	<	public class ShortRunnable implements Runnable {
731	<	public void run() {
732	<	try {
733	<	Thread.sleep(SHORT_DELAY_MS);
730	>	/**
731	>	* A security policy where new permissions can be dynamically added
732	>	* or all cleared.
733	>	*/
734	>	public static class AdjustablePolicy extends java.security.Policy {
735	>	Permissions perms = new Permissions();
736	>	AdjustablePolicy(Permission... permissions) {
737	>	for (Permission permission : permissions)
738	>	perms.add(permission);
739	>	}
740	>	void addPermission(Permission perm) { perms.add(perm); }
741	>	void clearPermissions() { perms = new Permissions(); }
742	>	public PermissionCollection getPermissions(CodeSource cs) {
743	>	return perms;
744	>	}
745	>	public PermissionCollection getPermissions(ProtectionDomain pd) {
746	>	return perms;
747	>	}
748	>	public boolean implies(ProtectionDomain pd, Permission p) {
749	>	return perms.implies(p);
750	>	}
751	>	public void refresh() {}
752	>	public String toString() {
753	>	List<Permission> ps = new ArrayList<Permission>();
754	>	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
755	>	ps.add(e.nextElement());
756	>	return "AdjustablePolicy with permissions " + ps;
757	>	}
758	>	}
759	>
760	>	/**
761	>	* Returns a policy containing all the permissions we ever need.
762	>	*/
763	>	public static Policy permissivePolicy() {
764	>	return new AdjustablePolicy
765	>	// Permissions j.u.c. needs directly
766	>	(new RuntimePermission("modifyThread"),
767	>	new RuntimePermission("getClassLoader"),
768	>	new RuntimePermission("setContextClassLoader"),
769	>	// Permissions needed to change permissions!
770	>	new SecurityPermission("getPolicy"),
771	>	new SecurityPermission("setPolicy"),
772	>	new RuntimePermission("setSecurityManager"),
773	>	// Permissions needed by the junit test harness
774	>	new RuntimePermission("accessDeclaredMembers"),
775	>	new PropertyPermission("*", "read"),
776	>	new java.io.FilePermission("<<ALL FILES>>", "read"));
777	>	}
778	>
779	>	/**
780	>	* Sleeps until the given time has elapsed.
781	>	* Throws AssertionFailedError if interrupted.
782	>	*/
783	>	void sleep(long millis) {
784	>	try {
785	>	delay(millis);
786	>	} catch (InterruptedException ie) {
787	>	AssertionFailedError afe =
788	>	new AssertionFailedError("Unexpected InterruptedException");
789	>	afe.initCause(ie);
790	>	throw afe;
791	>	}
792	>	}
793	>
794	>	/**
795	>	* Spin-waits up to the specified number of milliseconds for the given
796	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
797	>	*/
798	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
799	>	long startTime = System.nanoTime();
800	>	for (;;) {
801	>	Thread.State s = thread.getState();
802	>	if (s == Thread.State.BLOCKED ||
803	>	s == Thread.State.WAITING ||
804	>	s == Thread.State.TIMED_WAITING)
805	>	return;
806	>	else if (s == Thread.State.TERMINATED)
807	>	fail("Unexpected thread termination");
808	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
809	>	threadAssertTrue(thread.isAlive());
810	>	return;
811		}
812	<	catch(Exception e) {
813	<	threadUnexpectedException();
812	>	Thread.yield();
813	>	}
814	>	}
815	>
816	>	/**
817	>	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
818	>	* state: BLOCKED, WAITING, or TIMED_WAITING.
819	>	*/
820	>	void waitForThreadToEnterWaitState(Thread thread) {
821	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
822	>	}
823	>
824	>	/**
825	>	* Returns the number of milliseconds since time given by
826	>	* startNanoTime, which must have been previously returned from a
827	>	* call to {@link System.nanoTime()}.
828	>	*/
829	>	long millisElapsedSince(long startNanoTime) {
830	>	return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
831	>	}
832	>
833	>	/**
834	>	* Returns a new started daemon Thread running the given runnable.
835	>	*/
836	>	Thread newStartedThread(Runnable runnable) {
837	>	Thread t = new Thread(runnable);
838	>	t.setDaemon(true);
839	>	t.start();
840	>	return t;
841	>	}
842	>
843	>	/**
844	>	* Waits for the specified time (in milliseconds) for the thread
845	>	* to terminate (using {@link Thread#join(long)}), else interrupts
846	>	* the thread (in the hope that it may terminate later) and fails.
847	>	*/
848	>	void awaitTermination(Thread t, long timeoutMillis) {
849	>	try {
850	>	t.join(timeoutMillis);
851	>	} catch (InterruptedException ie) {
852	>	threadUnexpectedException(ie);
853	>	} finally {
854	>	if (t.getState() != Thread.State.TERMINATED) {
855	>	t.interrupt();
856	>	fail("Test timed out");
857		}
858		}
859		}
860
861	<	public class ShortInterruptedRunnable implements Runnable {
862	<	public void run() {
861	>	/**
862	>	* Waits for LONG_DELAY_MS milliseconds for the thread to
863	>	* terminate (using {@link Thread#join(long)}), else interrupts
864	>	* the thread (in the hope that it may terminate later) and fails.
865	>	*/
866	>	void awaitTermination(Thread t) {
867	>	awaitTermination(t, LONG_DELAY_MS);
868	>	}
869	>
870	>	// Some convenient Runnable classes
871	>
872	>	public abstract class CheckedRunnable implements Runnable {
873	>	protected abstract void realRun() throws Throwable;
874	>
875	>	public final void run() {
876		try {
877	<	Thread.sleep(SHORT_DELAY_MS);
878	<	threadShouldThrow();
877	>	realRun();
878	>	} catch (Throwable t) {
879	>	threadUnexpectedException(t);
880		}
881	<	catch(InterruptedException success) {
881	>	}
882	>	}
883	>
884	>	public abstract class RunnableShouldThrow implements Runnable {
885	>	protected abstract void realRun() throws Throwable;
886	>
887	>	final Class<?> exceptionClass;
888	>
889	>	<T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) {
890	>	this.exceptionClass = exceptionClass;
891	>	}
892	>
893	>	public final void run() {
894	>	try {
895	>	realRun();
896	>	threadShouldThrow(exceptionClass.getSimpleName());
897	>	} catch (Throwable t) {
898	>	if (! exceptionClass.isInstance(t))
899	>	threadUnexpectedException(t);
900		}
901		}
902		}
903
904	<	public class SmallRunnable implements Runnable {
905	<	public void run() {
904	>	public abstract class ThreadShouldThrow extends Thread {
905	>	protected abstract void realRun() throws Throwable;
906	>
907	>	final Class<?> exceptionClass;
908	>
909	>	<T extends Throwable> ThreadShouldThrow(Class<T> exceptionClass) {
910	>	this.exceptionClass = exceptionClass;
911	>	}
912	>
913	>	public final void run() {
914		try {
915	<	Thread.sleep(SMALL_DELAY_MS);
915	>	realRun();
916	>	threadShouldThrow(exceptionClass.getSimpleName());
917	>	} catch (Throwable t) {
918	>	if (! exceptionClass.isInstance(t))
919	>	threadUnexpectedException(t);
920		}
921	<	catch(Exception e) {
922	<	threadUnexpectedException();
921	>	}
922	>	}
923	>
924	>	public abstract class CheckedInterruptedRunnable implements Runnable {
925	>	protected abstract void realRun() throws Throwable;
926	>
927	>	public final void run() {
928	>	try {
929	>	realRun();
930	>	threadShouldThrow("InterruptedException");
931	>	} catch (InterruptedException success) {
932	>	threadAssertFalse(Thread.interrupted());
933	>	} catch (Throwable t) {
934	>	threadUnexpectedException(t);
935		}
936		}
937		}
938
939	<	public class SmallCallable implements Callable {
940	<	public Object call() {
939	>	public abstract class CheckedCallable<T> implements Callable<T> {
940	>	protected abstract T realCall() throws Throwable;
941	>
942	>	public final T call() {
943		try {
944	<	Thread.sleep(SMALL_DELAY_MS);
944	>	return realCall();
945	>	} catch (Throwable t) {
946	>	threadUnexpectedException(t);
947	>	return null;
948		}
949	<	catch(Exception e) {
950	<	threadUnexpectedException();
949	>	}
950	>	}
951	>
952	>	public abstract class CheckedInterruptedCallable<T>
953	>	implements Callable<T> {
954	>	protected abstract T realCall() throws Throwable;
955	>
956	>	public final T call() {
957	>	try {
958	>	T result = realCall();
959	>	threadShouldThrow("InterruptedException");
960	>	return result;
961	>	} catch (InterruptedException success) {
962	>	threadAssertFalse(Thread.interrupted());
963	>	} catch (Throwable t) {
964	>	threadUnexpectedException(t);
965		}
966	+	return null;
967	+	}
968	+	}
969	+
970	+	public static class NoOpRunnable implements Runnable {
971	+	public void run() {}
972	+	}
973	+
974	+	public static class NoOpCallable implements Callable {
975	+	public Object call() { return Boolean.TRUE; }
976	+	}
977	+
978	+	public static final String TEST_STRING = "a test string";
979	+
980	+	public static class StringTask implements Callable<String> {
981	+	public String call() { return TEST_STRING; }
982	+	}
983	+
984	+	public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
985	+	return new CheckedCallable<String>() {
986	+	protected String realCall() {
987	+	try {
988	+	latch.await();
989	+	} catch (InterruptedException quittingTime) {}
990	+	return TEST_STRING;
991	+	}};
992	+	}
993	+
994	+	public Runnable awaiter(final CountDownLatch latch) {
995	+	return new CheckedRunnable() {
996	+	public void realRun() throws InterruptedException {
997	+	await(latch);
998	+	}};
999	+	}
1000	+
1001	+	public void await(CountDownLatch latch) {
1002	+	try {
1003	+	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1004	+	} catch (Throwable t) {
1005	+	threadUnexpectedException(t);
1006	+	}
1007	+	}
1008	+
1009	+	public void await(Semaphore semaphore) {
1010	+	try {
1011	+	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1012	+	} catch (Throwable t) {
1013	+	threadUnexpectedException(t);
1014	+	}
1015	+	}
1016	+
1017	+	//     /**
1018	+	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1019	+	//      */
1020	+	//     public void await(AtomicBoolean flag) {
1021	+	//         await(flag, LONG_DELAY_MS);
1022	+	//     }
1023	+
1024	+	//     /**
1025	+	//      * Spin-waits up to the specified timeout until flag becomes true.
1026	+	//      */
1027	+	//     public void await(AtomicBoolean flag, long timeoutMillis) {
1028	+	//         long startTime = System.nanoTime();
1029	+	//         while (!flag.get()) {
1030	+	//             if (millisElapsedSince(startTime) > timeoutMillis)
1031	+	//                 throw new AssertionFailedError("timed out");
1032	+	//             Thread.yield();
1033	+	//         }
1034	+	//     }
1035	+
1036	+	public static class NPETask implements Callable<String> {
1037	+	public String call() { throw new NullPointerException(); }
1038	+	}
1039	+
1040	+	public static class CallableOne implements Callable<Integer> {
1041	+	public Integer call() { return one; }
1042	+	}
1043	+
1044	+	public class ShortRunnable extends CheckedRunnable {
1045	+	protected void realRun() throws Throwable {
1046	+	delay(SHORT_DELAY_MS);
1047	+	}
1048	+	}
1049	+
1050	+	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1051	+	protected void realRun() throws InterruptedException {
1052	+	delay(SHORT_DELAY_MS);
1053	+	}
1054	+	}
1055	+
1056	+	public class SmallRunnable extends CheckedRunnable {
1057	+	protected void realRun() throws Throwable {
1058	+	delay(SMALL_DELAY_MS);
1059	+	}
1060	+	}
1061	+
1062	+	public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1063	+	protected void realRun() {
1064	+	try {
1065	+	delay(SMALL_DELAY_MS);
1066	+	} catch (InterruptedException ok) {}
1067	+	}
1068	+	}
1069	+
1070	+	public class SmallCallable extends CheckedCallable {
1071	+	protected Object realCall() throws InterruptedException {
1072	+	delay(SMALL_DELAY_MS);
1073		return Boolean.TRUE;
1074		}
1075		}
1076
1077	<	public class SmallInterruptedRunnable implements Runnable {
1077	>	public class MediumRunnable extends CheckedRunnable {
1078	>	protected void realRun() throws Throwable {
1079	>	delay(MEDIUM_DELAY_MS);
1080	>	}
1081	>	}
1082	>
1083	>	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1084	>	protected void realRun() throws InterruptedException {
1085	>	delay(MEDIUM_DELAY_MS);
1086	>	}
1087	>	}
1088	>
1089	>	public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1090	>	return new CheckedRunnable() {
1091	>	protected void realRun() {
1092	>	try {
1093	>	delay(timeoutMillis);
1094	>	} catch (InterruptedException ok) {}
1095	>	}};
1096	>	}
1097	>
1098	>	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1099	>	protected void realRun() {
1100	>	try {
1101	>	delay(MEDIUM_DELAY_MS);
1102	>	} catch (InterruptedException ok) {}
1103	>	}
1104	>	}
1105	>
1106	>	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1107	>	protected void realRun() {
1108	>	try {
1109	>	delay(LONG_DELAY_MS);
1110	>	} catch (InterruptedException ok) {}
1111	>	}
1112	>	}
1113	>
1114	>	/**
1115	>	* For use as ThreadFactory in constructors
1116	>	*/
1117	>	public static class SimpleThreadFactory implements ThreadFactory {
1118	>	public Thread newThread(Runnable r) {
1119	>	return new Thread(r);
1120	>	}
1121	>	}
1122	>
1123	>	public interface TrackedRunnable extends Runnable {
1124	>	boolean isDone();
1125	>	}
1126	>
1127	>	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1128	>	return new TrackedRunnable() {
1129	>	private volatile boolean done = false;
1130	>	public boolean isDone() { return done; }
1131	>	public void run() {
1132	>	try {
1133	>	delay(timeoutMillis);
1134	>	done = true;
1135	>	} catch (InterruptedException ok) {}
1136	>	}
1137	>	};
1138	>	}
1139	>
1140	>	public static class TrackedShortRunnable implements Runnable {
1141	>	public volatile boolean done = false;
1142		public void run() {
1143		try {
1144	<	Thread.sleep(SMALL_DELAY_MS);
1145	<	threadShouldThrow();
1146	<	}
256	<	catch(InterruptedException success) {
257	<	}
1144	>	delay(SHORT_DELAY_MS);
1145	>	done = true;
1146	>	} catch (InterruptedException ok) {}
1147		}
1148		}
1149
1150	+	public static class TrackedSmallRunnable implements Runnable {
1151	+	public volatile boolean done = false;
1152	+	public void run() {
1153	+	try {
1154	+	delay(SMALL_DELAY_MS);
1155	+	done = true;
1156	+	} catch (InterruptedException ok) {}
1157	+	}
1158	+	}
1159
1160	<	public class MediumRunnable implements Runnable {
1160	>	public static class TrackedMediumRunnable implements Runnable {
1161	>	public volatile boolean done = false;
1162		public void run() {
1163		try {
1164	<	Thread.sleep(MEDIUM_DELAY_MS);
1165	<	}
1166	<	catch(Exception e) {
268	<	threadUnexpectedException();
269	<	}
1164	>	delay(MEDIUM_DELAY_MS);
1165	>	done = true;
1166	>	} catch (InterruptedException ok) {}
1167		}
1168		}
1169
1170	<	public class MediumInterruptedRunnable implements Runnable {
1170	>	public static class TrackedLongRunnable implements Runnable {
1171	>	public volatile boolean done = false;
1172		public void run() {
1173		try {
1174	<	Thread.sleep(MEDIUM_DELAY_MS);
1175	<	threadShouldThrow();
1176	<	}
279	<	catch(InterruptedException success) {
280	<	}
1174	>	delay(LONG_DELAY_MS);
1175	>	done = true;
1176	>	} catch (InterruptedException ok) {}
1177		}
1178		}
1179
1180	<	public class MediumPossiblyInterruptedRunnable implements Runnable {
1180	>	public static class TrackedNoOpRunnable implements Runnable {
1181	>	public volatile boolean done = false;
1182		public void run() {
1183	+	done = true;
1184	+	}
1185	+	}
1186	+
1187	+	public static class TrackedCallable implements Callable {
1188	+	public volatile boolean done = false;
1189	+	public Object call() {
1190	+	try {
1191	+	delay(SMALL_DELAY_MS);
1192	+	done = true;
1193	+	} catch (InterruptedException ok) {}
1194	+	return Boolean.TRUE;
1195	+	}
1196	+	}
1197	+
1198	+	/**
1199	+	* Analog of CheckedRunnable for RecursiveAction
1200	+	*/
1201	+	public abstract class CheckedRecursiveAction extends RecursiveAction {
1202	+	protected abstract void realCompute() throws Throwable;
1203	+
1204	+	public final void compute() {
1205		try {
1206	<	Thread.sleep(MEDIUM_DELAY_MS);
1206	>	realCompute();
1207	>	} catch (Throwable t) {
1208	>	threadUnexpectedException(t);
1209		}
1210	<	catch(InterruptedException success) {
1210	>	}
1211	>	}
1212	>
1213	>	/**
1214	>	* Analog of CheckedCallable for RecursiveTask
1215	>	*/
1216	>	public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1217	>	protected abstract T realCompute() throws Throwable;
1218	>
1219	>	public final T compute() {
1220	>	try {
1221	>	return realCompute();
1222	>	} catch (Throwable t) {
1223	>	threadUnexpectedException(t);
1224	>	return null;
1225		}
1226		}
1227		}
1228	<
1228	>
1229	>	/**
1230	>	* For use as RejectedExecutionHandler in constructors
1231	>	*/
1232	>	public static class NoOpREHandler implements RejectedExecutionHandler {
1233	>	public void rejectedExecution(Runnable r,
1234	>	ThreadPoolExecutor executor) {}
1235	>	}
1236	>
1237	>	/**
1238	>	* A CyclicBarrier that uses timed await and fails with
1239	>	* AssertionFailedErrors instead of throwing checked exceptions.
1240	>	*/
1241	>	public class CheckedBarrier extends CyclicBarrier {
1242	>	public CheckedBarrier(int parties) { super(parties); }
1243	>
1244	>	public int await() {
1245	>	try {
1246	>	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1247	>	} catch (TimeoutException e) {
1248	>	throw new AssertionFailedError("timed out");
1249	>	} catch (Exception e) {
1250	>	AssertionFailedError afe =
1251	>	new AssertionFailedError("Unexpected exception: " + e);
1252	>	afe.initCause(e);
1253	>	throw afe;
1254	>	}
1255	>	}
1256	>	}
1257	>
1258	>	void checkEmpty(BlockingQueue q) {
1259	>	try {
1260	>	assertTrue(q.isEmpty());
1261	>	assertEquals(0, q.size());
1262	>	assertNull(q.peek());
1263	>	assertNull(q.poll());
1264	>	assertNull(q.poll(0, MILLISECONDS));
1265	>	assertEquals(q.toString(), "[]");
1266	>	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1267	>	assertFalse(q.iterator().hasNext());
1268	>	try {
1269	>	q.element();
1270	>	shouldThrow();
1271	>	} catch (NoSuchElementException success) {}
1272	>	try {
1273	>	q.iterator().next();
1274	>	shouldThrow();
1275	>	} catch (NoSuchElementException success) {}
1276	>	try {
1277	>	q.remove();
1278	>	shouldThrow();
1279	>	} catch (NoSuchElementException success) {}
1280	>	} catch (InterruptedException ie) {
1281	>	threadUnexpectedException(ie);
1282	>	}
1283	>	}
1284	>
1285	>	void assertSerialEquals(Object x, Object y) {
1286	>	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1287	>	}
1288	>
1289	>	void assertNotSerialEquals(Object x, Object y) {
1290	>	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1291	>	}
1292	>
1293	>	byte[] serialBytes(Object o) {
1294	>	try {
1295	>	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1296	>	ObjectOutputStream oos = new ObjectOutputStream(bos);
1297	>	oos.writeObject(o);
1298	>	oos.flush();
1299	>	oos.close();
1300	>	return bos.toByteArray();
1301	>	} catch (Throwable t) {
1302	>	threadUnexpectedException(t);
1303	>	return new byte[0];
1304	>	}
1305	>	}
1306	>
1307	>	@SuppressWarnings("unchecked")
1308	>	<T> T serialClone(T o) {
1309	>	try {
1310	>	ObjectInputStream ois = new ObjectInputStream
1311	>	(new ByteArrayInputStream(serialBytes(o)));
1312	>	T clone = (T) ois.readObject();
1313	>	assertSame(o.getClass(), clone.getClass());
1314	>	return clone;
1315	>	} catch (Throwable t) {
1316	>	threadUnexpectedException(t);
1317	>	return null;
1318	>	}
1319	>	}
1320		}

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