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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.26 by dl, Thu Mar 31 15:24:29 2005 UTC vs.
Revision 1.98 by jsr166, Sun Feb 3 06:20:32 2013 UTC

#	Line 1 | Line 1
1		/*
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/licenses/publicdomain
5	<	* Other contributors include Andrew Wright, Jeffrey Hayes,
6	<	* Pat Fisher, Mike Judd.
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	<	import java.security.*;
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,
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 doe not otherwise arrange).  The rules for creating such
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
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
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
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 <tt>
61	<	* SHORT_DELAY_MS</tt>, <tt> SMALL_DELAY_MS</tt>, <tt> MEDIUM_DELAY_MS</tt>,
62	<	* <tt> LONG_DELAY_MS</tt>. The idea here is that a SHORT is always
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 <tt> joinPool</tt> 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>
78	>	* <p><b>Other notes</b>
79		* <ul>
80		*
81		* <li> Usually, there is one testcase method per JSR166 method
#	Line 63 | Line 85 | import java.security.*;
85		* "normal" behaviors differ significantly. And sometimes testcases
86		* cover multiple methods when they cannot be tested in
87		* isolation.</li>
88	<	*
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
#	Line 80 | Line 102 | import java.security.*;
102		* any particular package to simplify things for people integrating
103		* them in TCK test suites.</li>
104		*
105	<	* <li> As a convenience, the <tt>main</tt> of this class (JSR166TestCase)
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	<	*/
153	<	public static void main (String[] args) {
154	<	int iters = 1;
155	<	if (args.length > 0)
156	<	iters = Integer.parseInt(args[0]);
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);
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	<	TestSuite suite = new TestSuite("JSR166 Unit Tests");
220	<
221	<	suite.addTest(new TestSuite(AbstractExecutorServiceTest.class));
222	<	suite.addTest(new TestSuite(AbstractQueueTest.class));
223	<	suite.addTest(new TestSuite(AbstractQueuedSynchronizerTest.class));
224	<	suite.addTest(new TestSuite(AbstractQueuedLongSynchronizerTest.class));
225	<	suite.addTest(new TestSuite(ArrayBlockingQueueTest.class));
226	<	suite.addTest(new TestSuite(ArrayDequeTest.class));
227	<	suite.addTest(new TestSuite(AtomicBooleanTest.class));
228	<	suite.addTest(new TestSuite(AtomicIntegerArrayTest.class));
229	<	suite.addTest(new TestSuite(AtomicIntegerFieldUpdaterTest.class));
230	<	suite.addTest(new TestSuite(AtomicIntegerTest.class));
231	<	suite.addTest(new TestSuite(AtomicLongArrayTest.class));
232	<	suite.addTest(new TestSuite(AtomicLongFieldUpdaterTest.class));
233	<	suite.addTest(new TestSuite(AtomicLongTest.class));
234	<	suite.addTest(new TestSuite(AtomicMarkableReferenceTest.class));
235	<	suite.addTest(new TestSuite(AtomicReferenceArrayTest.class));
236	<	suite.addTest(new TestSuite(AtomicReferenceFieldUpdaterTest.class));
237	<	suite.addTest(new TestSuite(AtomicReferenceTest.class));
238	<	suite.addTest(new TestSuite(AtomicStampedReferenceTest.class));
239	<	suite.addTest(new TestSuite(ConcurrentHashMapTest.class));
240	<	suite.addTest(new TestSuite(ConcurrentLinkedQueueTest.class));
241	<	suite.addTest(new TestSuite(ConcurrentSkipListMapTest.class));
242	<	suite.addTest(new TestSuite(ConcurrentSkipListSubMapTest.class));
243	<	suite.addTest(new TestSuite(ConcurrentSkipListSetTest.class));
244	<	suite.addTest(new TestSuite(ConcurrentSkipListSubSetTest.class));
245	<	suite.addTest(new TestSuite(CopyOnWriteArrayListTest.class));
246	<	suite.addTest(new TestSuite(CopyOnWriteArraySetTest.class));
247	<	suite.addTest(new TestSuite(CountDownLatchTest.class));
248	<	suite.addTest(new TestSuite(CyclicBarrierTest.class));
249	<	suite.addTest(new TestSuite(DelayQueueTest.class));
250	<	suite.addTest(new TestSuite(ExchangerTest.class));
251	<	suite.addTest(new TestSuite(ExecutorsTest.class));
252	<	suite.addTest(new TestSuite(ExecutorCompletionServiceTest.class));
253	<	suite.addTest(new TestSuite(FutureTaskTest.class));
254	<	suite.addTest(new TestSuite(LinkedBlockingDequeTest.class));
255	<	suite.addTest(new TestSuite(LinkedBlockingQueueTest.class));
256	<	suite.addTest(new TestSuite(LinkedListTest.class));
257	<	suite.addTest(new TestSuite(LockSupportTest.class));
258	<	suite.addTest(new TestSuite(PriorityBlockingQueueTest.class));
259	<	suite.addTest(new TestSuite(PriorityQueueTest.class));
260	<	suite.addTest(new TestSuite(ReentrantLockTest.class));
261	<	suite.addTest(new TestSuite(ReentrantReadWriteLockTest.class));
262	<	suite.addTest(new TestSuite(ScheduledExecutorTest.class));
263	<	suite.addTest(new TestSuite(SemaphoreTest.class));
264	<	suite.addTest(new TestSuite(SynchronousQueueTest.class));
265	<	suite.addTest(new TestSuite(SystemTest.class));
266	<	suite.addTest(new TestSuite(ThreadLocalTest.class));
267	<	suite.addTest(new TestSuite(ThreadPoolExecutorTest.class));
268	<	suite.addTest(new TestSuite(ThreadTest.class));
269	<	suite.addTest(new TestSuite(TimeUnitTest.class));
270	<	suite.addTest(new TestSuite(TreeMapTest.class));
271	<	suite.addTest(new TestSuite(TreeSetTest.class));
272	<	suite.addTest(new TestSuite(TreeSubMapTest.class));
273	<	suite.addTest(new TestSuite(TreeSubSetTest.class));
274	<
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
#	Line 173 | Line 302 | public class JSR166TestCase extends Test
302
303
304		/**
305	<	* Return the shortest timed delay. This could
305	>	* Returns the shortest timed delay. This could
306		* be reimplemented to use for example a Property.
307	<	*/
307	>	*/
308		protected long getShortDelay() {
309		return 50;
310		}
311
183	–
312		/**
313	<	* Set delays as multiples of 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	>	* Returns a new Date instance representing a time delayMillis
332	>	* milliseconds in the future.
333	>	*/
334	>	Date delayedDate(long delayMillis) {
335	>	return new Date(System.currentTimeMillis() + delayMillis);
336		}
337
338		/**
339	<	* Flag set true if any threadAssert methods fail
339	>	* The first exception encountered if any threadAssertXXX method fails.
340		*/
341	<	volatile boolean threadFailed;
341	>	private final AtomicReference<Throwable> threadFailure
342	>	= new AtomicReference<Throwable>(null);
343
344		/**
345	<	* Initialize test to indicate that no thread assertions have failed
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 setUp() {
350	>	public void threadRecordFailure(Throwable t) {
351	>	threadFailure.compareAndSet(null, t);
352	>	}
353	>
354	>	public void setUp() {
355		setDelays();
204	–	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	<	* Fail, also setting status to indicate current testcase should fail
390	<	*/
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	<	* If expression not true, set status to indicate current testcase
404	<	* should fail
405	<	*/
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) {
228	<	threadFailed = true;
408	>	try {
409		assertTrue(b);
410	+	} catch (AssertionFailedError t) {
411	+	threadRecordFailure(t);
412	+	throw t;
413		}
414		}
415
416		/**
417	<	* If expression not false, set status to indicate current testcase
418	<	* should fail
419	<	*/
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) {
239	<	threadFailed = true;
422	>	try {
423		assertFalse(b);
424	+	} catch (AssertionFailedError t) {
425	+	threadRecordFailure(t);
426	+	throw t;
427		}
428		}
429
430		/**
431	<	* If argument not null, set status to indicate current testcase
432	<	* should fail
433	<	*/
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) {
250	<	threadFailed = true;
436	>	try {
437		assertNull(x);
438	+	} catch (AssertionFailedError t) {
439	+	threadRecordFailure(t);
440	+	throw t;
441		}
442		}
443
444		/**
445	<	* If arguments not equal, set status to indicate current testcase
446	<	* should fail
447	<	*/
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) {
261	<	threadFailed = true;
450	>	try {
451		assertEquals(x, y);
452	+	} catch (AssertionFailedError t) {
453	+	threadRecordFailure(t);
454	+	throw t;
455		}
456		}
457
458		/**
459	<	* If arguments not equal, set status to indicate current testcase
460	<	* should fail
461	<	*/
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))) {
272	<	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	<	* threadFail with message "should throw exception"
490	<	*/
489	>	* Calls threadFail with message "should throw exception".
490	>	*/
491		public void threadShouldThrow() {
492	<	threadFailed = true;
282	<	fail("should throw exception");
492	>	threadFail("should throw exception");
493		}
494
495		/**
496	<	* threadFail with message "Unexpected exception"
496	>	* Calls threadFail with message "should throw" + exceptionName.
497		*/
498	<	public void threadUnexpectedException() {
499	<	threadFailed = true;
290	<	fail("Unexpected exception");
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(SecurityException ok) {
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 exception");
553	>	} catch (InterruptedException ie) {
554	>	fail("Unexpected InterruptedException");
555	>	}
556	>	}
557	>
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	<	* fail with message "should throw exception"
599	<	*/
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		/**
642	<	* fail with message "Unexpected exception"
642	>	* Fails with message "should throw " + exceptionName.
643		*/
644	<	public void unexpectedException() {
645	<	fail("Unexpected exception");
644	>	public void shouldThrow(String exceptionName) {
645	>	fail("Should throw " + exceptionName);
646		}
647
323	–
648		/**
649		* The number of elements to place in collections, arrays, etc.
650		*/
651	<	static final int SIZE = 20;
651	>	public static final int SIZE = 20;
652
653		// Some convenient Integer constants
654
655	<	static final Integer zero = new Integer(0);
656	<	static final Integer one = new Integer(1);
657	<	static final Integer two = new Integer(2);
658	<	static final Integer three  = new Integer(3);
659	<	static final Integer four  = new Integer(4);
660	<	static final Integer five  = new Integer(5);
661	<	static final Integer six = new Integer(6);
662	<	static final Integer seven = new Integer(7);
663	<	static final Integer eight = new Integer(8);
664	<	static final Integer nine = new Integer(9);
665	<	static final Integer m1  = new Integer(-1);
666	<	static final Integer m2  = new Integer(-2);
667	<	static final Integer m3  = new Integer(-3);
668	<	static final Integer m4 = new Integer(-4);
669	<	static final Integer m5 = new Integer(-5);
670	<	static final Integer m10 = new Integer(-10);
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);
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);
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);
670	>	public static final Integer m6  = new Integer(-6);
671	>	public static final Integer m10 = new Integer(-10);
672
673
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	+	/**
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	+	/**
724	+	* Runs a runnable without any permissions.
725	+	*/
726	+	public void runWithoutPermissions(Runnable r) {
727	+	runWithPermissions(r);
728	+	}
729	+
730	+	/**
731		* A security policy where new permissions can be dynamically added
732		* or all cleared.
733		*/
734	<	static class AdjustablePolicy extends java.security.Policy {
734	>	public static class AdjustablePolicy extends java.security.Policy {
735		Permissions perms = new Permissions();
736	<	AdjustablePolicy() { }
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() {}
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	<	// Some convenient Runnable classes
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	<	static class NoOpRunnable implements Runnable {
795	<	public void run() {}
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	>	Thread.yield();
813	>	}
814		}
815
816	<	static class NoOpCallable implements Callable {
817	<	public Object call() { return Boolean.TRUE; }
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	<	static final String TEST_STRING = "a test string";
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	<	static class StringTask implements Callable<String> {
834	<	public String call() { return TEST_STRING; }
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	<	static class NPETask implements Callable<String> {
844	<	public String call() { throw new NullPointerException(); }
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	<	static class CallableOne implements Callable<Integer> {
862	<	public Integer call() { return one; }
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	<	class ShortRunnable implements Runnable {
871	<	public void run() {
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	<	}
879	<	catch(Exception e) {
401	<	threadUnexpectedException();
877	>	realRun();
878	>	} catch (Throwable t) {
879	>	threadUnexpectedException(t);
880		}
881		}
882		}
883
884	<	class ShortInterruptedRunnable implements Runnable {
885	<	public void run() {
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	<	Thread.sleep(SHORT_DELAY_MS);
896	<	threadShouldThrow();
897	<	}
898	<	catch(InterruptedException success) {
895	>	realRun();
896	>	threadShouldThrow(exceptionClass.getSimpleName());
897	>	} catch (Throwable t) {
898	>	if (! exceptionClass.isInstance(t))
899	>	threadUnexpectedException(t);
900		}
901		}
902		}
903
904	<	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);
916	<	}
917	<	catch(Exception e) {
918	<	threadUnexpectedException();
915	>	realRun();
916	>	threadShouldThrow(exceptionClass.getSimpleName());
917	>	} catch (Throwable t) {
918	>	if (! exceptionClass.isInstance(t))
919	>	threadUnexpectedException(t);
920		}
921		}
922		}
923
924	<	class SmallPossiblyInterruptedRunnable implements Runnable {
925	<	public void run() {
924	>	public abstract class CheckedInterruptedRunnable implements Runnable {
925	>	protected abstract void realRun() throws Throwable;
926	>
927	>	public final void run() {
928		try {
929	<	Thread.sleep(SMALL_DELAY_MS);
930	<	}
931	<	catch(Exception e) {
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	<	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		}
443	–	catch(Exception e) {
444	–	threadUnexpectedException();
445	–	}
446	–	return Boolean.TRUE;
949		}
950		}
951
952	<	class SmallInterruptedRunnable implements Runnable {
953	<	public void run() {
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	<	Thread.sleep(SMALL_DELAY_MS);
959	<	threadShouldThrow();
960	<	}
961	<	catch(InterruptedException success) {
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	<	class MediumRunnable implements Runnable {
975	<	public void run() {
976	<	try {
977	<	Thread.sleep(MEDIUM_DELAY_MS);
978	<	}
979	<	catch(Exception e) {
980	<	threadUnexpectedException();
981	<	}
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	<	class MediumInterruptedRunnable implements Runnable {
1010	<	public void run() {
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	<	Thread.sleep(MEDIUM_DELAY_MS);
1066	<	threadShouldThrow();
478	<	}
479	<	catch(InterruptedException success) {
480	<	}
1065	>	delay(SMALL_DELAY_MS);
1066	>	} catch (InterruptedException ok) {}
1067		}
1068		}
1069
1070	<	class MediumPossiblyInterruptedRunnable implements Runnable {
1071	<	public void run() {
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 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	<	Thread.sleep(MEDIUM_DELAY_MS);
1102	<	}
489	<	catch(InterruptedException success) {
490	<	}
1101	>	delay(MEDIUM_DELAY_MS);
1102	>	} catch (InterruptedException ok) {}
1103		}
1104		}
1105
1106	<	class LongPossiblyInterruptedRunnable implements Runnable {
1107	<	public void run() {
1106	>	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1107	>	protected void realRun() {
1108		try {
1109	<	Thread.sleep(LONG_DELAY_MS);
1110	<	}
499	<	catch(InterruptedException success) {
500	<	}
1109	>	delay(LONG_DELAY_MS);
1110	>	} catch (InterruptedException ok) {}
1111		}
1112		}
1113
1114		/**
1115		* For use as ThreadFactory in constructors
1116		*/
1117	<	static class SimpleThreadFactory implements ThreadFactory{
1118	<	public Thread newThread(Runnable r){
1117	>	public static class SimpleThreadFactory implements ThreadFactory {
1118	>	public Thread newThread(Runnable r) {
1119		return new Thread(r);
1120	<	}
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	<	static class TrackedShortRunnable implements Runnable {
1141	<	volatile boolean done = false;
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);
1144	>	delay(SHORT_DELAY_MS);
1145		done = true;
1146	<	} catch(Exception e){
520	<	}
1146	>	} catch (InterruptedException ok) {}
1147		}
1148		}
1149
1150	<	static class TrackedMediumRunnable implements Runnable {
1151	<	volatile boolean done = false;
1150	>	public static class TrackedSmallRunnable implements Runnable {
1151	>	public volatile boolean done = false;
1152		public void run() {
1153		try {
1154	<	Thread.sleep(MEDIUM_DELAY_MS);
1154	>	delay(SMALL_DELAY_MS);
1155		done = true;
1156	<	} catch(Exception e){
531	<	}
1156	>	} catch (InterruptedException ok) {}
1157		}
1158		}
1159
1160	<	static class TrackedLongRunnable implements Runnable {
1161	<	volatile boolean done = false;
1160	>	public static class TrackedMediumRunnable implements Runnable {
1161	>	public volatile boolean done = false;
1162		public void run() {
1163		try {
1164	<	Thread.sleep(LONG_DELAY_MS);
1164	>	delay(MEDIUM_DELAY_MS);
1165		done = true;
1166	<	} catch(Exception e){
542	<	}
1166	>	} catch (InterruptedException ok) {}
1167		}
1168		}
1169
1170	<	static class TrackedNoOpRunnable implements Runnable {
1171	<	volatile boolean done = false;
1170	>	public static class TrackedLongRunnable implements Runnable {
1171	>	public volatile boolean done = false;
1172	>	public void run() {
1173	>	try {
1174	>	delay(LONG_DELAY_MS);
1175	>	done = true;
1176	>	} catch (InterruptedException ok) {}
1177	>	}
1178	>	}
1179	>
1180	>	public static class TrackedNoOpRunnable implements Runnable {
1181	>	public volatile boolean done = false;
1182		public void run() {
1183		done = true;
1184		}
1185		}
1186
1187	<	static class TrackedCallable implements Callable {
1188	<	volatile boolean done = false;
1187	>	public static class TrackedCallable implements Callable {
1188	>	public volatile boolean done = false;
1189		public Object call() {
1190		try {
1191	<	Thread.sleep(SMALL_DELAY_MS);
1191	>	delay(SMALL_DELAY_MS);
1192		done = true;
1193	<	} catch(Exception e){
560	<	}
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	+	realCompute();
1207	+	} catch (Throwable t) {
1208	+	threadUnexpectedException(t);
1209	+	}
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
1229		/**
1230		* For use as RejectedExecutionHandler in constructors
1231		*/
1232	<	static class NoOpREHandler implements RejectedExecutionHandler{
1233	<	public void rejectedExecution(Runnable r, ThreadPoolExecutor executor){}
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		}
572	–
573	–
1320		}

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