ViewVC Help

View File | Revision Log | Show Annotations | Download File | Root Listing

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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.10 by dl, Mon Dec 22 00:48:55 2003 UTC vs.
Revision 1.96 by jsr166, Mon Jan 21 19:51:46 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.util.ArrayList;
17	>	import java.util.Arrays;
18	>	import java.util.Date;
19	>	import java.util.Enumeration;
20	>	import java.util.List;
21	>	import java.util.NoSuchElementException;
22	>	import java.util.PropertyPermission;
23		import java.util.concurrent.*;
24	<	import java.io.*;
25	<	import java.security.*;
24	>	import java.util.concurrent.atomic.AtomicBoolean;
25	>	import java.util.concurrent.atomic.AtomicReference;
26	>	import static java.util.concurrent.TimeUnit.MILLISECONDS;
27	>	import static java.util.concurrent.TimeUnit.NANOSECONDS;
28	>	import java.security.CodeSource;
29	>	import java.security.Permission;
30	>	import java.security.PermissionCollection;
31	>	import java.security.Permissions;
32	>	import java.security.Policy;
33	>	import java.security.ProtectionDomain;
34	>	import java.security.SecurityPermission;
35
36		/**
37		* Base class for JSR166 Junit TCK tests.  Defines some constants,
38		* utility methods and classes, as well as a simple framework for
39		* helping to make sure that assertions failing in generated threads
40		* cause the associated test that generated them to itself fail (which
41	<	* JUnit doe not otherwise arrange).  The rules for creating such
41	>	* JUnit does not otherwise arrange).  The rules for creating such
42		* tests are:
43		*
44		* <ol>
45		*
46		* <li> All assertions in code running in generated threads must use
47	<	* the forms {@link threadFail} , {@link threadAssertTrue} {@link
48	<	* threadAssertEquals}, or {@link threadAssertNull}, (not
49	<	* <tt>fail</tt>, <tt>assertTrue</tt>, etc.) It is OK (but not
47	>	* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link
48	>	* #threadAssertEquals}, or {@link #threadAssertNull}, (not
49	>	* {@code fail}, {@code assertTrue}, etc.) It is OK (but not
50		* particularly recommended) for other code to use these forms too.
51		* Only the most typically used JUnit assertion methods are defined
52		* this way, but enough to live with.</li>
53		*
54	<	* <li> If you override {@link setUp} or {@link tearDown}, make sure
55	<	* to invoke <tt>super.setUp</tt> and <tt>super.tearDown</tt> within
54	>	* <li> If you override {@link #setUp} or {@link #tearDown}, make sure
55	>	* to invoke {@code super.setUp} and {@code super.tearDown} within
56		* them. These methods are used to clear and check for thread
57		* assertion failures.</li>
58		*
59	<	* <li>All delays and timeouts must use one of the constants <tt>
60	<	* SHORT_DELAY_MS</tt>, <tt> SMALL_DELAY_MS</tt>, <tt> MEDIUM_DELAY_MS</tt>,
61	<	* <tt> LONG_DELAY_MS</tt>. The idea here is that a SHORT is always
59	>	* <li>All delays and timeouts must use one of the constants {@code
60	>	* SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS},
61	>	* {@code LONG_DELAY_MS}. The idea here is that a SHORT is always
62		* discriminable from zero time, and always allows enough time for the
63		* small amounts of computation (creating a thread, calling a few
64		* methods, etc) needed to reach a timeout point. Similarly, a SMALL
65		* is always discriminable as larger than SHORT and smaller than
66		* MEDIUM.  And so on. These constants are set to conservative values,
67		* but even so, if there is ever any doubt, they can all be increased
68	<	* in one spot to rerun tests on slower platforms</li>
68	>	* in one spot to rerun tests on slower platforms.</li>
69		*
70		* <li> All threads generated must be joined inside each test case
71	<	* method (or <tt>fail</tt> to do so) before returning from the
72	<	* method. The <tt> joinPool</tt> method can be used to do this when
71	>	* method (or {@code fail} to do so) before returning from the
72	>	* method. The {@code joinPool} method can be used to do this when
73		* using Executors.</li>
74		*
75		* </ol>
76		*
77	<	* <p> <b>Other notes</b>
77	>	* <p><b>Other notes</b>
78		* <ul>
79		*
80		* <li> Usually, there is one testcase method per JSR166 method
#	Line 62 | Line 84 | import java.security.*;
84		* "normal" behaviors differ significantly. And sometimes testcases
85		* cover multiple methods when they cannot be tested in
86		* isolation.</li>
87	<	*
87	>	*
88		* <li> The documentation style for testcases is to provide as javadoc
89		* a simple sentence or two describing the property that the testcase
90		* method purports to test. The javadocs do not say anything about how
#	Line 79 | Line 101 | import java.security.*;
101		* any particular package to simplify things for people integrating
102		* them in TCK test suites.</li>
103		*
104	<	* <li> As a convenience, the <tt>main</tt> of this class (JSR166TestCase)
104	>	* <li> As a convenience, the {@code main} of this class (JSR166TestCase)
105		* runs all JSR166 unit tests.</li>
106		*
107		* </ul>
108		*/
109		public class JSR166TestCase extends TestCase {
110	+	private static final boolean useSecurityManager =
111	+	Boolean.getBoolean("jsr166.useSecurityManager");
112	+
113	+	protected static final boolean expensiveTests =
114	+	Boolean.getBoolean("jsr166.expensiveTests");
115	+
116	+	/**
117	+	* If true, report on stdout all "slow" tests, that is, ones that
118	+	* take more than profileThreshold milliseconds to execute.
119	+	*/
120	+	private static final boolean profileTests =
121	+	Boolean.getBoolean("jsr166.profileTests");
122	+
123		/**
124	<	* Runs all JSR166 unit tests using junit.textui.TestRunner
125	<	*/
126	<	public static void main (String[] args) {
127	<	junit.textui.TestRunner.run (suite());
124	>	* The number of milliseconds that tests are permitted for
125	>	* execution without being reported, when profileTests is set.
126	>	*/
127	>	private static final long profileThreshold =
128	>	Long.getLong("jsr166.profileThreshold", 100);
129	>
130	>	protected void runTest() throws Throwable {
131	>	if (profileTests)
132	>	runTestProfiled();
133	>	else
134	>	super.runTest();
135	>	}
136	>
137	>	protected void runTestProfiled() throws Throwable {
138	>	long t0 = System.nanoTime();
139	>	try {
140	>	super.runTest();
141	>	} finally {
142	>	long elapsedMillis =
143	>	(System.nanoTime() - t0) / (1000L * 1000L);
144	>	if (elapsedMillis >= profileThreshold)
145	>	System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
146	>	}
147		}
148
149		/**
150	<	* Collects all JSR166 unit tests as one suite
151	<	*/
152	<	public static Test suite ( ) {
153	<	TestSuite suite = new TestSuite("JSR166 Unit Tests");
154	<
155	<	suite.addTest(new TestSuite(AbstractExecutorServiceTest.class));
156	<	suite.addTest(new TestSuite(ArrayBlockingQueueTest.class));
157	<	suite.addTest(new TestSuite(AtomicBooleanTest.class));
158	<	suite.addTest(new TestSuite(AtomicIntegerArrayTest.class));
159	<	suite.addTest(new TestSuite(AtomicIntegerFieldUpdaterTest.class));
160	<	suite.addTest(new TestSuite(AtomicIntegerTest.class));
161	<	suite.addTest(new TestSuite(AtomicLongArrayTest.class));
162	<	suite.addTest(new TestSuite(AtomicLongFieldUpdaterTest.class));
163	<	suite.addTest(new TestSuite(AtomicLongTest.class));
164	<	suite.addTest(new TestSuite(AtomicMarkableReferenceTest.class));
165	<	suite.addTest(new TestSuite(AtomicReferenceArrayTest.class));
166	<	suite.addTest(new TestSuite(AtomicReferenceFieldUpdaterTest.class));
167	<	suite.addTest(new TestSuite(AtomicReferenceTest.class));
168	<	suite.addTest(new TestSuite(AtomicStampedReferenceTest.class));
169	<	suite.addTest(new TestSuite(ConcurrentHashMapTest.class));
170	<	suite.addTest(new TestSuite(ConcurrentLinkedQueueTest.class));
171	<	suite.addTest(new TestSuite(CopyOnWriteArrayListTest.class));
172	<	suite.addTest(new TestSuite(CopyOnWriteArraySetTest.class));
173	<	suite.addTest(new TestSuite(CountDownLatchTest.class));
174	<	suite.addTest(new TestSuite(CyclicBarrierTest.class));
175	<	suite.addTest(new TestSuite(DelayQueueTest.class));
176	<	suite.addTest(new TestSuite(ExchangerTest.class));
177	<	suite.addTest(new TestSuite(ExecutorsTest.class));
178	<	suite.addTest(new TestSuite(FutureTaskTest.class));
179	<	suite.addTest(new TestSuite(LinkedBlockingQueueTest.class));
180	<	suite.addTest(new TestSuite(LinkedListTest.class));
127	<	suite.addTest(new TestSuite(LockSupportTest.class));
128	<	suite.addTest(new TestSuite(PriorityBlockingQueueTest.class));
129	<	suite.addTest(new TestSuite(PriorityQueueTest.class));
130	<	suite.addTest(new TestSuite(ReentrantLockTest.class));
131	<	suite.addTest(new TestSuite(ReentrantReadWriteLockTest.class));
132	<	suite.addTest(new TestSuite(ScheduledExecutorTest.class));
133	<	suite.addTest(new TestSuite(SemaphoreTest.class));
134	<	suite.addTest(new TestSuite(SynchronousQueueTest.class));
135	<	suite.addTest(new TestSuite(SystemTest.class));
136	<	suite.addTest(new TestSuite(ThreadLocalTest.class));
137	<	suite.addTest(new TestSuite(ThreadPoolExecutorTest.class));
138	<	suite.addTest(new TestSuite(ThreadTest.class));
139	<	suite.addTest(new TestSuite(TimeUnitTest.class));
140	<
150	>	* Runs all JSR166 unit tests using junit.textui.TestRunner.
151	>	* Optional command line arg provides the number of iterations to
152	>	* repeat running the tests.
153	>	*/
154	>	public static void main(String[] args) {
155	>	if (useSecurityManager) {
156	>	System.err.println("Setting a permissive security manager");
157	>	Policy.setPolicy(permissivePolicy());
158	>	System.setSecurityManager(new SecurityManager());
159	>	}
160	>	int iters = (args.length == 0) ? 1 : Integer.parseInt(args[0]);
161	>
162	>	Test s = suite();
163	>	for (int i = 0; i < iters; ++i) {
164	>	junit.textui.TestRunner.run(s);
165	>	System.gc();
166	>	System.runFinalization();
167	>	}
168	>	System.exit(0);
169	>	}
170	>
171	>	public static TestSuite newTestSuite(Object... suiteOrClasses) {
172	>	TestSuite suite = new TestSuite();
173	>	for (Object suiteOrClass : suiteOrClasses) {
174	>	if (suiteOrClass instanceof TestSuite)
175	>	suite.addTest((TestSuite) suiteOrClass);
176	>	else if (suiteOrClass instanceof Class)
177	>	suite.addTest(new TestSuite((Class<?>) suiteOrClass));
178	>	else
179	>	throw new ClassCastException("not a test suite or class");
180	>	}
181		return suite;
182		}
183
184	+	/**
185	+	* Collects all JSR166 unit tests as one suite.
186	+	*/
187	+	public static Test suite() {
188	+	return newTestSuite(
189	+	ForkJoinPoolTest.suite(),
190	+	ForkJoinTaskTest.suite(),
191	+	RecursiveActionTest.suite(),
192	+	RecursiveTaskTest.suite(),
193	+	LinkedTransferQueueTest.suite(),
194	+	PhaserTest.suite(),
195	+	ThreadLocalRandomTest.suite(),
196	+	AbstractExecutorServiceTest.suite(),
197	+	AbstractQueueTest.suite(),
198	+	AbstractQueuedSynchronizerTest.suite(),
199	+	AbstractQueuedLongSynchronizerTest.suite(),
200	+	ArrayBlockingQueueTest.suite(),
201	+	ArrayDequeTest.suite(),
202	+	AtomicBooleanTest.suite(),
203	+	AtomicIntegerArrayTest.suite(),
204	+	AtomicIntegerFieldUpdaterTest.suite(),
205	+	AtomicIntegerTest.suite(),
206	+	AtomicLongArrayTest.suite(),
207	+	AtomicLongFieldUpdaterTest.suite(),
208	+	AtomicLongTest.suite(),
209	+	AtomicMarkableReferenceTest.suite(),
210	+	AtomicReferenceArrayTest.suite(),
211	+	AtomicReferenceFieldUpdaterTest.suite(),
212	+	AtomicReferenceTest.suite(),
213	+	AtomicStampedReferenceTest.suite(),
214	+	ConcurrentHashMapTest.suite(),
215	+	ConcurrentLinkedDequeTest.suite(),
216	+	ConcurrentLinkedQueueTest.suite(),
217	+	ConcurrentSkipListMapTest.suite(),
218	+	ConcurrentSkipListSubMapTest.suite(),
219	+	ConcurrentSkipListSetTest.suite(),
220	+	ConcurrentSkipListSubSetTest.suite(),
221	+	CopyOnWriteArrayListTest.suite(),
222	+	CopyOnWriteArraySetTest.suite(),
223	+	CountDownLatchTest.suite(),
224	+	CyclicBarrierTest.suite(),
225	+	DelayQueueTest.suite(),
226	+	EntryTest.suite(),
227	+	ExchangerTest.suite(),
228	+	ExecutorsTest.suite(),
229	+	ExecutorCompletionServiceTest.suite(),
230	+	FutureTaskTest.suite(),
231	+	LinkedBlockingDequeTest.suite(),
232	+	LinkedBlockingQueueTest.suite(),
233	+	LinkedListTest.suite(),
234	+	LockSupportTest.suite(),
235	+	PriorityBlockingQueueTest.suite(),
236	+	PriorityQueueTest.suite(),
237	+	ReentrantLockTest.suite(),
238	+	ReentrantReadWriteLockTest.suite(),
239	+	ScheduledExecutorTest.suite(),
240	+	ScheduledExecutorSubclassTest.suite(),
241	+	SemaphoreTest.suite(),
242	+	SynchronousQueueTest.suite(),
243	+	SystemTest.suite(),
244	+	ThreadLocalTest.suite(),
245	+	ThreadPoolExecutorTest.suite(),
246	+	ThreadPoolExecutorSubclassTest.suite(),
247	+	ThreadTest.suite(),
248	+	TimeUnitTest.suite(),
249	+	TreeMapTest.suite(),
250	+	TreeSetTest.suite(),
251	+	TreeSubMapTest.suite(),
252	+	TreeSubSetTest.suite());
253	+	}
254	+
255
256		public static long SHORT_DELAY_MS;
257		public static long SMALL_DELAY_MS;
#	Line 149 | Line 260 | public class JSR166TestCase extends Test
260
261
262		/**
263	<	* Return the shortest timed delay. This could
264	<	* be reimplmented to use for example a Property.
265	<	*/
263	>	* Returns the shortest timed delay. This could
264	>	* be reimplemented to use for example a Property.
265	>	*/
266		protected long getShortDelay() {
267	<	return 100;
267	>	return 50;
268		}
269
159	–
270		/**
271	<	* Set delays as multiples of SHORT_DELAY.
271	>	* Sets delays as multiples of SHORT_DELAY.
272		*/
273	<	protected  void setDelays() {
273	>	protected void setDelays() {
274		SHORT_DELAY_MS = getShortDelay();
275	<	SMALL_DELAY_MS = SHORT_DELAY_MS * 5;
275	>	SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
276		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
277	<	LONG_DELAY_MS = SHORT_DELAY_MS * 50;
277	>	LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
278		}
279
280		/**
281	<	* Flag set true if any threadAssert methods fail
281	>	* Returns a timeout in milliseconds to be used in tests that
282	>	* verify that operations block or time out.
283		*/
284	<	volatile boolean threadFailed;
284	>	long timeoutMillis() {
285	>	return SHORT_DELAY_MS / 4;
286	>	}
287
288		/**
289	<	* Initialize test to indicate that no thread assertions have failed
289	>	* Returns a new Date instance representing a time delayMillis
290	>	* milliseconds in the future.
291		*/
292	<	public void setUp() {
292	>	Date delayedDate(long delayMillis) {
293	>	return new Date(System.currentTimeMillis() + delayMillis);
294	>	}
295	>
296	>	/**
297	>	* The first exception encountered if any threadAssertXXX method fails.
298	>	*/
299	>	private final AtomicReference<Throwable> threadFailure
300	>	= new AtomicReference<Throwable>(null);
301	>
302	>	/**
303	>	* Records an exception so that it can be rethrown later in the test
304	>	* harness thread, triggering a test case failure.  Only the first
305	>	* failure is recorded; subsequent calls to this method from within
306	>	* the same test have no effect.
307	>	*/
308	>	public void threadRecordFailure(Throwable t) {
309	>	threadFailure.compareAndSet(null, t);
310	>	}
311	>
312	>	public void setUp() {
313		setDelays();
180	–	threadFailed = false;
314		}
315
316		/**
317	<	* Trigger test case failure if any thread assertions have failed
317	>	* Extra checks that get done for all test cases.
318	>	*
319	>	* Triggers test case failure if any thread assertions have failed,
320	>	* by rethrowing, in the test harness thread, any exception recorded
321	>	* earlier by threadRecordFailure.
322	>	*
323	>	* Triggers test case failure if interrupt status is set in the main thread.
324		*/
325	<	public void tearDown() {
326	<	assertFalse(threadFailed);
325	>	public void tearDown() throws Exception {
326	>	Throwable t = threadFailure.getAndSet(null);
327	>	if (t != null) {
328	>	if (t instanceof Error)
329	>	throw (Error) t;
330	>	else if (t instanceof RuntimeException)
331	>	throw (RuntimeException) t;
332	>	else if (t instanceof Exception)
333	>	throw (Exception) t;
334	>	else {
335	>	AssertionFailedError afe =
336	>	new AssertionFailedError(t.toString());
337	>	afe.initCause(t);
338	>	throw afe;
339	>	}
340	>	}
341	>
342	>	if (Thread.interrupted())
343	>	throw new AssertionFailedError("interrupt status set in main thread");
344		}
345
346		/**
347	<	* Fail, also setting status to indicate current testcase should fail
348	<	*/
347	>	* Just like fail(reason), but additionally recording (using
348	>	* threadRecordFailure) any AssertionFailedError thrown, so that
349	>	* the current testcase will fail.
350	>	*/
351		public void threadFail(String reason) {
352	<	threadFailed = true;
353	<	fail(reason);
352	>	try {
353	>	fail(reason);
354	>	} catch (AssertionFailedError t) {
355	>	threadRecordFailure(t);
356	>	fail(reason);
357	>	}
358		}
359
360		/**
361	<	* If expression not true, set status to indicate current testcase
362	<	* should fail
363	<	*/
361	>	* Just like assertTrue(b), but additionally recording (using
362	>	* threadRecordFailure) any AssertionFailedError thrown, so that
363	>	* the current testcase will fail.
364	>	*/
365		public void threadAssertTrue(boolean b) {
366	<	if (!b) {
204	<	threadFailed = true;
366	>	try {
367		assertTrue(b);
368	+	} catch (AssertionFailedError t) {
369	+	threadRecordFailure(t);
370	+	throw t;
371		}
372		}
373
374		/**
375	<	* If expression not false, set status to indicate current testcase
376	<	* should fail
377	<	*/
375	>	* Just like assertFalse(b), but additionally recording (using
376	>	* threadRecordFailure) any AssertionFailedError thrown, so that
377	>	* the current testcase will fail.
378	>	*/
379		public void threadAssertFalse(boolean b) {
380	<	if (b) {
215	<	threadFailed = true;
380	>	try {
381		assertFalse(b);
382	+	} catch (AssertionFailedError t) {
383	+	threadRecordFailure(t);
384	+	throw t;
385		}
386		}
387
388		/**
389	<	* If argument not null, set status to indicate current testcase
390	<	* should fail
391	<	*/
389	>	* Just like assertNull(x), but additionally recording (using
390	>	* threadRecordFailure) any AssertionFailedError thrown, so that
391	>	* the current testcase will fail.
392	>	*/
393		public void threadAssertNull(Object x) {
394	<	if (x != null) {
226	<	threadFailed = true;
394	>	try {
395		assertNull(x);
396	+	} catch (AssertionFailedError t) {
397	+	threadRecordFailure(t);
398	+	throw t;
399		}
400		}
401
402		/**
403	<	* If arguments not equal, set status to indicate current testcase
404	<	* should fail
405	<	*/
403	>	* Just like assertEquals(x, y), but additionally recording (using
404	>	* threadRecordFailure) any AssertionFailedError thrown, so that
405	>	* the current testcase will fail.
406	>	*/
407		public void threadAssertEquals(long x, long y) {
408	<	if (x != y) {
237	<	threadFailed = true;
408	>	try {
409		assertEquals(x, y);
410	+	} catch (AssertionFailedError t) {
411	+	threadRecordFailure(t);
412	+	throw t;
413		}
414		}
415
416		/**
417	<	* If arguments not equal, set status to indicate current testcase
418	<	* should fail
419	<	*/
417	>	* Just like assertEquals(x, y), but additionally recording (using
418	>	* threadRecordFailure) any AssertionFailedError thrown, so that
419	>	* the current testcase will fail.
420	>	*/
421		public void threadAssertEquals(Object x, Object y) {
422	<	if (x != y && (x == null || !x.equals(y))) {
248	<	threadFailed = true;
422	>	try {
423		assertEquals(x, y);
424	+	} catch (AssertionFailedError t) {
425	+	threadRecordFailure(t);
426	+	throw t;
427	+	} catch (Throwable t) {
428	+	threadUnexpectedException(t);
429	+	}
430	+	}
431	+
432	+	/**
433	+	* Just like assertSame(x, y), but additionally recording (using
434	+	* threadRecordFailure) any AssertionFailedError thrown, so that
435	+	* the current testcase will fail.
436	+	*/
437	+	public void threadAssertSame(Object x, Object y) {
438	+	try {
439	+	assertSame(x, y);
440	+	} catch (AssertionFailedError t) {
441	+	threadRecordFailure(t);
442	+	throw t;
443		}
444		}
445
446		/**
447	<	* threadFail with message "should throw exception"
448	<	*/
447	>	* Calls threadFail with message "should throw exception".
448	>	*/
449		public void threadShouldThrow() {
450	<	threadFailed = true;
258	<	fail("should throw exception");
450	>	threadFail("should throw exception");
451		}
452
453		/**
454	<	* threadFail with message "Unexpected exception"
454	>	* Calls threadFail with message "should throw" + exceptionName.
455		*/
456	<	public void threadUnexpectedException() {
457	<	threadFailed = true;
266	<	fail("Unexpected exception");
456	>	public void threadShouldThrow(String exceptionName) {
457	>	threadFail("should throw " + exceptionName);
458		}
459
460	+	/**
461	+	* Records the given exception using {@link #threadRecordFailure},
462	+	* then rethrows the exception, wrapping it in an
463	+	* AssertionFailedError if necessary.
464	+	*/
465	+	public void threadUnexpectedException(Throwable t) {
466	+	threadRecordFailure(t);
467	+	t.printStackTrace();
468	+	if (t instanceof RuntimeException)
469	+	throw (RuntimeException) t;
470	+	else if (t instanceof Error)
471	+	throw (Error) t;
472	+	else {
473	+	AssertionFailedError afe =
474	+	new AssertionFailedError("unexpected exception: " + t);
475	+	afe.initCause(t);
476	+	throw afe;
477	+	}
478	+	}
479	+
480	+	/**
481	+	* Delays, via Thread.sleep, for the given millisecond delay, but
482	+	* if the sleep is shorter than specified, may re-sleep or yield
483	+	* until time elapses.
484	+	*/
485	+	static void delay(long millis) throws InterruptedException {
486	+	long startTime = System.nanoTime();
487	+	long ns = millis * 1000 * 1000;
488	+	for (;;) {
489	+	if (millis > 0L)
490	+	Thread.sleep(millis);
491	+	else // too short to sleep
492	+	Thread.yield();
493	+	long d = ns - (System.nanoTime() - startTime);
494	+	if (d > 0L)
495	+	millis = d / (1000 * 1000);
496	+	else
497	+	break;
498	+	}
499	+	}
500
501		/**
502	<	* Wait out termination of a thread pool or fail doing so
502	>	* Waits out termination of a thread pool or fails doing so.
503		*/
504	<	public void joinPool(ExecutorService exec) {
504	>	void joinPool(ExecutorService exec) {
505		try {
506		exec.shutdown();
507	<	assertTrue(exec.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
508	<	} catch(InterruptedException ie) {
509	<	fail("Unexpected exception");
507	>	assertTrue("ExecutorService did not terminate in a timely manner",
508	>	exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS));
509	>	} catch (SecurityException ok) {
510	>	// Allowed in case test doesn't have privs
511	>	} catch (InterruptedException ie) {
512	>	fail("Unexpected InterruptedException");
513		}
514		}
515
516	+	/**
517	+	* A debugging tool to print all stack traces, as jstack does.
518	+	*/
519	+	static void printAllStackTraces() {
520	+	for (ThreadInfo info :
521	+	ManagementFactory.getThreadMXBean()
522	+	.dumpAllThreads(true, true))
523	+	System.err.print(info);
524	+	}
525
526		/**
527	<	* fail with message "should throw exception"
528	<	*/
527	>	* Checks that thread does not terminate within the default
528	>	* millisecond delay of {@code timeoutMillis()}.
529	>	*/
530	>	void assertThreadStaysAlive(Thread thread) {
531	>	assertThreadStaysAlive(thread, timeoutMillis());
532	>	}
533	>
534	>	/**
535	>	* Checks that thread does not terminate within the given millisecond delay.
536	>	*/
537	>	void assertThreadStaysAlive(Thread thread, long millis) {
538	>	try {
539	>	// No need to optimize the failing case via Thread.join.
540	>	delay(millis);
541	>	assertTrue(thread.isAlive());
542	>	} catch (InterruptedException ie) {
543	>	fail("Unexpected InterruptedException");
544	>	}
545	>	}
546	>
547	>	/**
548	>	* Checks that the threads do not terminate within the default
549	>	* millisecond delay of {@code timeoutMillis()}.
550	>	*/
551	>	void assertThreadsStayAlive(Thread... threads) {
552	>	assertThreadsStayAlive(timeoutMillis(), threads);
553	>	}
554	>
555	>	/**
556	>	* Checks that the threads do not terminate within the given millisecond delay.
557	>	*/
558	>	void assertThreadsStayAlive(long millis, Thread... threads) {
559	>	try {
560	>	// No need to optimize the failing case via Thread.join.
561	>	delay(millis);
562	>	for (Thread thread : threads)
563	>	assertTrue(thread.isAlive());
564	>	} catch (InterruptedException ie) {
565	>	fail("Unexpected InterruptedException");
566	>	}
567	>	}
568	>
569	>	/**
570	>	* Checks that future.get times out, with the default timeout of
571	>	* {@code timeoutMillis()}.
572	>	*/
573	>	void assertFutureTimesOut(Future future) {
574	>	assertFutureTimesOut(future, timeoutMillis());
575	>	}
576	>
577	>	/**
578	>	* Checks that future.get times out, with the given millisecond timeout.
579	>	*/
580	>	void assertFutureTimesOut(Future future, long timeoutMillis) {
581	>	long startTime = System.nanoTime();
582	>	try {
583	>	future.get(timeoutMillis, MILLISECONDS);
584	>	shouldThrow();
585	>	} catch (TimeoutException success) {
586	>	} catch (Exception e) {
587	>	threadUnexpectedException(e);
588	>	} finally { future.cancel(true); }
589	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
590	>	}
591	>
592	>	/**
593	>	* Fails with message "should throw exception".
594	>	*/
595		public void shouldThrow() {
596		fail("Should throw exception");
597		}
598
599		/**
600	<	* fail with message "Unexpected exception"
600	>	* Fails with message "should throw " + exceptionName.
601		*/
602	<	public void unexpectedException() {
603	<	fail("Unexpected exception");
602	>	public void shouldThrow(String exceptionName) {
603	>	fail("Should throw " + exceptionName);
604		}
605
297	–
606		/**
607		* The number of elements to place in collections, arrays, etc.
608		*/
609	<	static final int SIZE = 20;
609	>	public static final int SIZE = 20;
610
611		// Some convenient Integer constants
612
613	<	static final Integer zero = new Integer(0);
614	<	static final Integer one = new Integer(1);
615	<	static final Integer two = new Integer(2);
616	<	static final Integer three  = new Integer(3);
617	<	static final Integer four  = new Integer(4);
618	<	static final Integer five  = new Integer(5);
619	<	static final Integer six = new Integer(6);
620	<	static final Integer seven = new Integer(7);
621	<	static final Integer eight = new Integer(8);
622	<	static final Integer nine = new Integer(9);
623	<	static final Integer m1  = new Integer(-1);
624	<	static final Integer m2  = new Integer(-2);
625	<	static final Integer m3  = new Integer(-3);
626	<	static final Integer m4 = new Integer(-4);
627	<	static final Integer m5 = new Integer(-5);
628	<	static final Integer m10 = new Integer(-10);
613	>	public static final Integer zero  = new Integer(0);
614	>	public static final Integer one   = new Integer(1);
615	>	public static final Integer two   = new Integer(2);
616	>	public static final Integer three = new Integer(3);
617	>	public static final Integer four  = new Integer(4);
618	>	public static final Integer five  = new Integer(5);
619	>	public static final Integer six   = new Integer(6);
620	>	public static final Integer seven = new Integer(7);
621	>	public static final Integer eight = new Integer(8);
622	>	public static final Integer nine  = new Integer(9);
623	>	public static final Integer m1  = new Integer(-1);
624	>	public static final Integer m2  = new Integer(-2);
625	>	public static final Integer m3  = new Integer(-3);
626	>	public static final Integer m4  = new Integer(-4);
627	>	public static final Integer m5  = new Integer(-5);
628	>	public static final Integer m6  = new Integer(-6);
629	>	public static final Integer m10 = new Integer(-10);
630	>
631	>
632	>	/**
633	>	* Runs Runnable r with a security policy that permits precisely
634	>	* the specified permissions.  If there is no current security
635	>	* manager, the runnable is run twice, both with and without a
636	>	* security manager.  We require that any security manager permit
637	>	* getPolicy/setPolicy.
638	>	*/
639	>	public void runWithPermissions(Runnable r, Permission... permissions) {
640	>	SecurityManager sm = System.getSecurityManager();
641	>	if (sm == null) {
642	>	r.run();
643	>	}
644	>	runWithSecurityManagerWithPermissions(r, permissions);
645	>	}
646	>
647	>	/**
648	>	* Runs Runnable r with a security policy that permits precisely
649	>	* the specified permissions.  If there is no current security
650	>	* manager, a temporary one is set for the duration of the
651	>	* Runnable.  We require that any security manager permit
652	>	* getPolicy/setPolicy.
653	>	*/
654	>	public void runWithSecurityManagerWithPermissions(Runnable r,
655	>	Permission... permissions) {
656	>	SecurityManager sm = System.getSecurityManager();
657	>	if (sm == null) {
658	>	Policy savedPolicy = Policy.getPolicy();
659	>	try {
660	>	Policy.setPolicy(permissivePolicy());
661	>	System.setSecurityManager(new SecurityManager());
662	>	runWithSecurityManagerWithPermissions(r, permissions);
663	>	} finally {
664	>	System.setSecurityManager(null);
665	>	Policy.setPolicy(savedPolicy);
666	>	}
667	>	} else {
668	>	Policy savedPolicy = Policy.getPolicy();
669	>	AdjustablePolicy policy = new AdjustablePolicy(permissions);
670	>	Policy.setPolicy(policy);
671	>
672	>	try {
673	>	r.run();
674	>	} finally {
675	>	policy.addPermission(new SecurityPermission("setPolicy"));
676	>	Policy.setPolicy(savedPolicy);
677	>	}
678	>	}
679	>	}
680
681	+	/**
682	+	* Runs a runnable without any permissions.
683	+	*/
684	+	public void runWithoutPermissions(Runnable r) {
685	+	runWithPermissions(r);
686	+	}
687
688		/**
689		* A security policy where new permissions can be dynamically added
690		* or all cleared.
691		*/
692	<	static class AdjustablePolicy extends java.security.Policy {
692	>	public static class AdjustablePolicy extends java.security.Policy {
693		Permissions perms = new Permissions();
694	<	AdjustablePolicy() { }
694	>	AdjustablePolicy(Permission... permissions) {
695	>	for (Permission permission : permissions)
696	>	perms.add(permission);
697	>	}
698		void addPermission(Permission perm) { perms.add(perm); }
699		void clearPermissions() { perms = new Permissions(); }
700	<	public PermissionCollection getPermissions(CodeSource cs) {
701	<	return perms;
702	<	}
703	<	public PermissionCollection getPermissions(ProtectionDomain pd) {
704	<	return perms;
705	<	}
706	<	public boolean implies(ProtectionDomain pd, Permission p) {
707	<	return perms.implies(p);
708	<	}
709	<	public void refresh() {}
700	>	public PermissionCollection getPermissions(CodeSource cs) {
701	>	return perms;
702	>	}
703	>	public PermissionCollection getPermissions(ProtectionDomain pd) {
704	>	return perms;
705	>	}
706	>	public boolean implies(ProtectionDomain pd, Permission p) {
707	>	return perms.implies(p);
708	>	}
709	>	public void refresh() {}
710	>	public String toString() {
711	>	List<Permission> ps = new ArrayList<Permission>();
712	>	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
713	>	ps.add(e.nextElement());
714	>	return "AdjustablePolicy with permissions " + ps;
715	>	}
716		}
717
718	+	/**
719	+	* Returns a policy containing all the permissions we ever need.
720	+	*/
721	+	public static Policy permissivePolicy() {
722	+	return new AdjustablePolicy
723	+	// Permissions j.u.c. needs directly
724	+	(new RuntimePermission("modifyThread"),
725	+	new RuntimePermission("getClassLoader"),
726	+	new RuntimePermission("setContextClassLoader"),
727	+	// Permissions needed to change permissions!
728	+	new SecurityPermission("getPolicy"),
729	+	new SecurityPermission("setPolicy"),
730	+	new RuntimePermission("setSecurityManager"),
731	+	// Permissions needed by the junit test harness
732	+	new RuntimePermission("accessDeclaredMembers"),
733	+	new PropertyPermission("*", "read"),
734	+	new java.io.FilePermission("<<ALL FILES>>", "read"));
735	+	}
736
737	<	// Some convenient Runnable classes
737	>	/**
738	>	* Sleeps until the given time has elapsed.
739	>	* Throws AssertionFailedError if interrupted.
740	>	*/
741	>	void sleep(long millis) {
742	>	try {
743	>	delay(millis);
744	>	} catch (InterruptedException ie) {
745	>	AssertionFailedError afe =
746	>	new AssertionFailedError("Unexpected InterruptedException");
747	>	afe.initCause(ie);
748	>	throw afe;
749	>	}
750	>	}
751
752	<	static class NoOpRunnable implements Runnable {
753	<	public void run() {}
752	>	/**
753	>	* Spin-waits up to the specified number of milliseconds for the given
754	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
755	>	*/
756	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
757	>	long startTime = System.nanoTime();
758	>	for (;;) {
759	>	Thread.State s = thread.getState();
760	>	if (s == Thread.State.BLOCKED ||
761	>	s == Thread.State.WAITING ||
762	>	s == Thread.State.TIMED_WAITING)
763	>	return;
764	>	else if (s == Thread.State.TERMINATED)
765	>	fail("Unexpected thread termination");
766	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
767	>	threadAssertTrue(thread.isAlive());
768	>	return;
769	>	}
770	>	Thread.yield();
771	>	}
772		}
773
774	<	static class NoOpCallable implements Callable {
775	<	public Object call() { return Boolean.TRUE; }
774	>	/**
775	>	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
776	>	* state: BLOCKED, WAITING, or TIMED_WAITING.
777	>	*/
778	>	void waitForThreadToEnterWaitState(Thread thread) {
779	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
780		}
781
782	<	static final String TEST_STRING = "a test string";
782	>	/**
783	>	* Returns the number of milliseconds since time given by
784	>	* startNanoTime, which must have been previously returned from a
785	>	* call to {@link System.nanoTime()}.
786	>	*/
787	>	long millisElapsedSince(long startNanoTime) {
788	>	return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
789	>	}
790
791	<	static class StringTask implements Callable<String> {
792	<	public String call() { return TEST_STRING; }
791	>	/**
792	>	* Returns a new started daemon Thread running the given runnable.
793	>	*/
794	>	Thread newStartedThread(Runnable runnable) {
795	>	Thread t = new Thread(runnable);
796	>	t.setDaemon(true);
797	>	t.start();
798	>	return t;
799		}
800
801	<	static class NPETask implements Callable<String> {
802	<	public String call() { throw new NullPointerException(); }
801	>	/**
802	>	* Waits for the specified time (in milliseconds) for the thread
803	>	* to terminate (using {@link Thread#join(long)}), else interrupts
804	>	* the thread (in the hope that it may terminate later) and fails.
805	>	*/
806	>	void awaitTermination(Thread t, long timeoutMillis) {
807	>	try {
808	>	t.join(timeoutMillis);
809	>	} catch (InterruptedException ie) {
810	>	threadUnexpectedException(ie);
811	>	} finally {
812	>	if (t.getState() != Thread.State.TERMINATED) {
813	>	t.interrupt();
814	>	fail("Test timed out");
815	>	}
816	>	}
817		}
818
819	<	static class CallableOne implements Callable<Integer> {
820	<	public Integer call() { return one; }
819	>	/**
820	>	* Waits for LONG_DELAY_MS milliseconds for the thread to
821	>	* terminate (using {@link Thread#join(long)}), else interrupts
822	>	* the thread (in the hope that it may terminate later) and fails.
823	>	*/
824	>	void awaitTermination(Thread t) {
825	>	awaitTermination(t, LONG_DELAY_MS);
826		}
827
828	<	class ShortRunnable implements Runnable {
829	<	public void run() {
828	>	// Some convenient Runnable classes
829	>
830	>	public abstract class CheckedRunnable implements Runnable {
831	>	protected abstract void realRun() throws Throwable;
832	>
833	>	public final void run() {
834		try {
835	<	Thread.sleep(SHORT_DELAY_MS);
836	<	}
837	<	catch(Exception e) {
375	<	threadUnexpectedException();
835	>	realRun();
836	>	} catch (Throwable t) {
837	>	threadUnexpectedException(t);
838		}
839		}
840		}
841
842	<	class ShortInterruptedRunnable implements Runnable {
843	<	public void run() {
842	>	public abstract class RunnableShouldThrow implements Runnable {
843	>	protected abstract void realRun() throws Throwable;
844	>
845	>	final Class<?> exceptionClass;
846	>
847	>	<T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) {
848	>	this.exceptionClass = exceptionClass;
849	>	}
850	>
851	>	public final void run() {
852		try {
853	<	Thread.sleep(SHORT_DELAY_MS);
854	<	threadShouldThrow();
855	<	}
856	<	catch(InterruptedException success) {
853	>	realRun();
854	>	threadShouldThrow(exceptionClass.getSimpleName());
855	>	} catch (Throwable t) {
856	>	if (! exceptionClass.isInstance(t))
857	>	threadUnexpectedException(t);
858		}
859		}
860		}
861
862	<	class SmallRunnable implements Runnable {
863	<	public void run() {
862	>	public abstract class ThreadShouldThrow extends Thread {
863	>	protected abstract void realRun() throws Throwable;
864	>
865	>	final Class<?> exceptionClass;
866	>
867	>	<T extends Throwable> ThreadShouldThrow(Class<T> exceptionClass) {
868	>	this.exceptionClass = exceptionClass;
869	>	}
870	>
871	>	public final void run() {
872		try {
873	<	Thread.sleep(SMALL_DELAY_MS);
874	<	}
875	<	catch(Exception e) {
876	<	threadUnexpectedException();
873	>	realRun();
874	>	threadShouldThrow(exceptionClass.getSimpleName());
875	>	} catch (Throwable t) {
876	>	if (! exceptionClass.isInstance(t))
877	>	threadUnexpectedException(t);
878		}
879		}
880		}
881
882	<	class SmallPossiblyInterruptedRunnable implements Runnable {
883	<	public void run() {
882	>	public abstract class CheckedInterruptedRunnable implements Runnable {
883	>	protected abstract void realRun() throws Throwable;
884	>
885	>	public final void run() {
886		try {
887	<	Thread.sleep(SMALL_DELAY_MS);
888	<	}
889	<	catch(Exception e) {
887	>	realRun();
888	>	threadShouldThrow("InterruptedException");
889	>	} catch (InterruptedException success) {
890	>	threadAssertFalse(Thread.interrupted());
891	>	} catch (Throwable t) {
892	>	threadUnexpectedException(t);
893		}
894		}
895		}
896
897	<	class SmallCallable implements Callable {
898	<	public Object call() {
897	>	public abstract class CheckedCallable<T> implements Callable<T> {
898	>	protected abstract T realCall() throws Throwable;
899	>
900	>	public final T call() {
901		try {
902	<	Thread.sleep(SMALL_DELAY_MS);
903	<	}
904	<	catch(Exception e) {
905	<	threadUnexpectedException();
902	>	return realCall();
903	>	} catch (Throwable t) {
904	>	threadUnexpectedException(t);
905	>	return null;
906		}
420	–	return Boolean.TRUE;
907		}
908		}
909
910	<	class SmallInterruptedRunnable implements Runnable {
911	<	public void run() {
910	>	public abstract class CheckedInterruptedCallable<T>
911	>	implements Callable<T> {
912	>	protected abstract T realCall() throws Throwable;
913	>
914	>	public final T call() {
915		try {
916	<	Thread.sleep(SMALL_DELAY_MS);
917	<	threadShouldThrow();
918	<	}
919	<	catch(InterruptedException success) {
916	>	T result = realCall();
917	>	threadShouldThrow("InterruptedException");
918	>	return result;
919	>	} catch (InterruptedException success) {
920	>	threadAssertFalse(Thread.interrupted());
921	>	} catch (Throwable t) {
922	>	threadUnexpectedException(t);
923		}
924	+	return null;
925		}
926		}
927
928	+	public static class NoOpRunnable implements Runnable {
929	+	public void run() {}
930	+	}
931
932	<	class MediumRunnable implements Runnable {
933	<	public void run() {
932	>	public static class NoOpCallable implements Callable {
933	>	public Object call() { return Boolean.TRUE; }
934	>	}
935	>
936	>	public static final String TEST_STRING = "a test string";
937	>
938	>	public static class StringTask implements Callable<String> {
939	>	public String call() { return TEST_STRING; }
940	>	}
941	>
942	>	public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
943	>	return new CheckedCallable<String>() {
944	>	protected String realCall() {
945	>	try {
946	>	latch.await();
947	>	} catch (InterruptedException quittingTime) {}
948	>	return TEST_STRING;
949	>	}};
950	>	}
951	>
952	>	public Runnable awaiter(final CountDownLatch latch) {
953	>	return new CheckedRunnable() {
954	>	public void realRun() throws InterruptedException {
955	>	await(latch);
956	>	}};
957	>	}
958	>
959	>	public void await(CountDownLatch latch) {
960	>	try {
961	>	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
962	>	} catch (Throwable t) {
963	>	threadUnexpectedException(t);
964	>	}
965	>	}
966	>
967	>	public void await(Semaphore semaphore) {
968	>	try {
969	>	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
970	>	} catch (Throwable t) {
971	>	threadUnexpectedException(t);
972	>	}
973	>	}
974	>
975	>	//     /**
976	>	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
977	>	//      */
978	>	//     public void await(AtomicBoolean flag) {
979	>	//         await(flag, LONG_DELAY_MS);
980	>	//     }
981	>
982	>	//     /**
983	>	//      * Spin-waits up to the specified timeout until flag becomes true.
984	>	//      */
985	>	//     public void await(AtomicBoolean flag, long timeoutMillis) {
986	>	//         long startTime = System.nanoTime();
987	>	//         while (!flag.get()) {
988	>	//             if (millisElapsedSince(startTime) > timeoutMillis)
989	>	//                 throw new AssertionFailedError("timed out");
990	>	//             Thread.yield();
991	>	//         }
992	>	//     }
993	>
994	>	public static class NPETask implements Callable<String> {
995	>	public String call() { throw new NullPointerException(); }
996	>	}
997	>
998	>	public static class CallableOne implements Callable<Integer> {
999	>	public Integer call() { return one; }
1000	>	}
1001	>
1002	>	public class ShortRunnable extends CheckedRunnable {
1003	>	protected void realRun() throws Throwable {
1004	>	delay(SHORT_DELAY_MS);
1005	>	}
1006	>	}
1007	>
1008	>	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1009	>	protected void realRun() throws InterruptedException {
1010	>	delay(SHORT_DELAY_MS);
1011	>	}
1012	>	}
1013	>
1014	>	public class SmallRunnable extends CheckedRunnable {
1015	>	protected void realRun() throws Throwable {
1016	>	delay(SMALL_DELAY_MS);
1017	>	}
1018	>	}
1019	>
1020	>	public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1021	>	protected void realRun() {
1022		try {
1023	<	Thread.sleep(MEDIUM_DELAY_MS);
1024	<	}
441	<	catch(Exception e) {
442	<	threadUnexpectedException();
443	<	}
1023	>	delay(SMALL_DELAY_MS);
1024	>	} catch (InterruptedException ok) {}
1025		}
1026		}
1027
1028	<	class MediumInterruptedRunnable implements Runnable {
1029	<	public void run() {
1028	>	public class SmallCallable extends CheckedCallable {
1029	>	protected Object realCall() throws InterruptedException {
1030	>	delay(SMALL_DELAY_MS);
1031	>	return Boolean.TRUE;
1032	>	}
1033	>	}
1034	>
1035	>	public class MediumRunnable extends CheckedRunnable {
1036	>	protected void realRun() throws Throwable {
1037	>	delay(MEDIUM_DELAY_MS);
1038	>	}
1039	>	}
1040	>
1041	>	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1042	>	protected void realRun() throws InterruptedException {
1043	>	delay(MEDIUM_DELAY_MS);
1044	>	}
1045	>	}
1046	>
1047	>	public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1048	>	return new CheckedRunnable() {
1049	>	protected void realRun() {
1050	>	try {
1051	>	delay(timeoutMillis);
1052	>	} catch (InterruptedException ok) {}
1053	>	}};
1054	>	}
1055	>
1056	>	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1057	>	protected void realRun() {
1058		try {
1059	<	Thread.sleep(MEDIUM_DELAY_MS);
1060	<	threadShouldThrow();
452	<	}
453	<	catch(InterruptedException success) {
454	<	}
1059	>	delay(MEDIUM_DELAY_MS);
1060	>	} catch (InterruptedException ok) {}
1061		}
1062		}
1063
1064	<	class MediumPossiblyInterruptedRunnable implements Runnable {
1065	<	public void run() {
1064	>	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1065	>	protected void realRun() {
1066		try {
1067	<	Thread.sleep(MEDIUM_DELAY_MS);
1068	<	}
463	<	catch(InterruptedException success) {
464	<	}
1067	>	delay(LONG_DELAY_MS);
1068	>	} catch (InterruptedException ok) {}
1069		}
1070		}
1071
1072		/**
1073		* For use as ThreadFactory in constructors
1074		*/
1075	<	static class SimpleThreadFactory implements ThreadFactory{
1076	<	public Thread newThread(Runnable r){
1075	>	public static class SimpleThreadFactory implements ThreadFactory {
1076	>	public Thread newThread(Runnable r) {
1077		return new Thread(r);
1078	<	}
1078	>	}
1079	>	}
1080	>
1081	>	public interface TrackedRunnable extends Runnable {
1082	>	boolean isDone();
1083		}
1084
1085	<	static class TrackedShortRunnable implements Runnable {
1086	<	volatile boolean done = false;
1085	>	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1086	>	return new TrackedRunnable() {
1087	>	private volatile boolean done = false;
1088	>	public boolean isDone() { return done; }
1089	>	public void run() {
1090	>	try {
1091	>	delay(timeoutMillis);
1092	>	done = true;
1093	>	} catch (InterruptedException ok) {}
1094	>	}
1095	>	};
1096	>	}
1097	>
1098	>	public static class TrackedShortRunnable implements Runnable {
1099	>	public volatile boolean done = false;
1100		public void run() {
1101		try {
1102	<	Thread.sleep(SMALL_DELAY_MS);
1102	>	delay(SHORT_DELAY_MS);
1103		done = true;
1104	<	} catch(Exception e){
484	<	}
1104	>	} catch (InterruptedException ok) {}
1105		}
1106		}
1107
1108	<	static class TrackedMediumRunnable implements Runnable {
1109	<	volatile boolean done = false;
1108	>	public static class TrackedSmallRunnable implements Runnable {
1109	>	public volatile boolean done = false;
1110		public void run() {
1111		try {
1112	<	Thread.sleep(MEDIUM_DELAY_MS);
1112	>	delay(SMALL_DELAY_MS);
1113		done = true;
1114	<	} catch(Exception e){
495	<	}
1114	>	} catch (InterruptedException ok) {}
1115		}
1116		}
1117
1118	<	static class TrackedLongRunnable implements Runnable {
1119	<	volatile boolean done = false;
1118	>	public static class TrackedMediumRunnable implements Runnable {
1119	>	public volatile boolean done = false;
1120		public void run() {
1121		try {
1122	<	Thread.sleep(LONG_DELAY_MS);
1122	>	delay(MEDIUM_DELAY_MS);
1123		done = true;
1124	<	} catch(Exception e){
1125	<	}
1124	>	} catch (InterruptedException ok) {}
1125	>	}
1126	>	}
1127	>
1128	>	public static class TrackedLongRunnable implements Runnable {
1129	>	public volatile boolean done = false;
1130	>	public void run() {
1131	>	try {
1132	>	delay(LONG_DELAY_MS);
1133	>	done = true;
1134	>	} catch (InterruptedException ok) {}
1135		}
1136		}
1137
1138	<	static class TrackedNoOpRunnable implements Runnable {
1139	<	volatile boolean done = false;
1138	>	public static class TrackedNoOpRunnable implements Runnable {
1139	>	public volatile boolean done = false;
1140		public void run() {
1141		done = true;
1142		}
1143		}
1144
1145	<	static class TrackedCallable implements Callable {
1146	<	volatile boolean done = false;
1145	>	public static class TrackedCallable implements Callable {
1146	>	public volatile boolean done = false;
1147		public Object call() {
1148		try {
1149	<	Thread.sleep(SMALL_DELAY_MS);
1149	>	delay(SMALL_DELAY_MS);
1150		done = true;
1151	<	} catch(Exception e){
524	<	}
1151	>	} catch (InterruptedException ok) {}
1152		return Boolean.TRUE;
1153		}
1154		}
1155
1156		/**
1157	+	* Analog of CheckedRunnable for RecursiveAction
1158	+	*/
1159	+	public abstract class CheckedRecursiveAction extends RecursiveAction {
1160	+	protected abstract void realCompute() throws Throwable;
1161	+
1162	+	public final void compute() {
1163	+	try {
1164	+	realCompute();
1165	+	} catch (Throwable t) {
1166	+	threadUnexpectedException(t);
1167	+	}
1168	+	}
1169	+	}
1170	+
1171	+	/**
1172	+	* Analog of CheckedCallable for RecursiveTask
1173	+	*/
1174	+	public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1175	+	protected abstract T realCompute() throws Throwable;
1176	+
1177	+	public final T compute() {
1178	+	try {
1179	+	return realCompute();
1180	+	} catch (Throwable t) {
1181	+	threadUnexpectedException(t);
1182	+	return null;
1183	+	}
1184	+	}
1185	+	}
1186	+
1187	+	/**
1188		* For use as RejectedExecutionHandler in constructors
1189		*/
1190	<	static class NoOpREHandler implements RejectedExecutionHandler{
1191	<	public void rejectedExecution(Runnable r, ThreadPoolExecutor executor){}
1190	>	public static class NoOpREHandler implements RejectedExecutionHandler {
1191	>	public void rejectedExecution(Runnable r,
1192	>	ThreadPoolExecutor executor) {}
1193	>	}
1194	>
1195	>	/**
1196	>	* A CyclicBarrier that uses timed await and fails with
1197	>	* AssertionFailedErrors instead of throwing checked exceptions.
1198	>	*/
1199	>	public class CheckedBarrier extends CyclicBarrier {
1200	>	public CheckedBarrier(int parties) { super(parties); }
1201	>
1202	>	public int await() {
1203	>	try {
1204	>	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1205	>	} catch (TimeoutException e) {
1206	>	throw new AssertionFailedError("timed out");
1207	>	} catch (Exception e) {
1208	>	AssertionFailedError afe =
1209	>	new AssertionFailedError("Unexpected exception: " + e);
1210	>	afe.initCause(e);
1211	>	throw afe;
1212	>	}
1213	>	}
1214	>	}
1215	>
1216	>	void checkEmpty(BlockingQueue q) {
1217	>	try {
1218	>	assertTrue(q.isEmpty());
1219	>	assertEquals(0, q.size());
1220	>	assertNull(q.peek());
1221	>	assertNull(q.poll());
1222	>	assertNull(q.poll(0, MILLISECONDS));
1223	>	assertEquals(q.toString(), "[]");
1224	>	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1225	>	assertFalse(q.iterator().hasNext());
1226	>	try {
1227	>	q.element();
1228	>	shouldThrow();
1229	>	} catch (NoSuchElementException success) {}
1230	>	try {
1231	>	q.iterator().next();
1232	>	shouldThrow();
1233	>	} catch (NoSuchElementException success) {}
1234	>	try {
1235	>	q.remove();
1236	>	shouldThrow();
1237	>	} catch (NoSuchElementException success) {}
1238	>	} catch (InterruptedException ie) {
1239	>	threadUnexpectedException(ie);
1240	>	}
1241	>	}
1242	>
1243	>	void assertSerialEquals(Object x, Object y) {
1244	>	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1245	>	}
1246	>
1247	>	void assertNotSerialEquals(Object x, Object y) {
1248	>	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1249	>	}
1250	>
1251	>	byte[] serialBytes(Object o) {
1252	>	try {
1253	>	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1254	>	ObjectOutputStream oos = new ObjectOutputStream(bos);
1255	>	oos.writeObject(o);
1256	>	oos.flush();
1257	>	oos.close();
1258	>	return bos.toByteArray();
1259	>	} catch (Throwable t) {
1260	>	threadUnexpectedException(t);
1261	>	return new byte[0];
1262	>	}
1263	>	}
1264	>
1265	>	@SuppressWarnings("unchecked")
1266	>	<T> T serialClone(T o) {
1267	>	try {
1268	>	ObjectInputStream ois = new ObjectInputStream
1269	>	(new ByteArrayInputStream(serialBytes(o)));
1270	>	T clone = (T) ois.readObject();
1271	>	assertSame(o.getClass(), clone.getClass());
1272	>	return clone;
1273	>	} catch (Throwable t) {
1274	>	threadUnexpectedException(t);
1275	>	return null;
1276	>	}
1277		}
535	–
536	–
1278		}

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines