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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.11 by dl, Tue Dec 23 19:40:24 2003 UTC vs.
Revision 1.101 by jsr166, Wed Feb 6 16:57:21 2013 UTC

#	Line 1 | Line 1
1		/*
2	<	* Written by members of JCP JSR-166 Expert Group and released to the
3	<	* public domain. Use, modify, and redistribute this code in any way
4	<	* without acknowledgement. Other contributors include Andrew Wright,
5	<	* Jeffrey Hayes, Pat Fischer, Mike Judd.
2	>	* Written by Doug Lea with assistance from members of JCP JSR-166
3	>	* Expert Group and released to the public domain, as explained at
4	>	* http://creativecommons.org/publicdomain/zero/1.0/
5	>	* Other contributors include Andrew Wright, Jeffrey Hayes,
6	>	* Pat Fisher, Mike Judd.
7		*/
8
9		import junit.framework.*;
10	<	import java.util.*;
10	>	import java.io.ByteArrayInputStream;
11	>	import java.io.ByteArrayOutputStream;
12	>	import java.io.ObjectInputStream;
13	>	import java.io.ObjectOutputStream;
14	>	import java.lang.management.ManagementFactory;
15	>	import java.lang.management.ThreadInfo;
16	>	import java.lang.reflect.Method;
17	>	import java.util.ArrayList;
18	>	import java.util.Arrays;
19	>	import java.util.Date;
20	>	import java.util.Enumeration;
21	>	import java.util.List;
22	>	import java.util.NoSuchElementException;
23	>	import java.util.PropertyPermission;
24		import java.util.concurrent.*;
25	<	import java.io.*;
26	<	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
49	<	* threadAssertEquals}, or {@link threadAssertNull}, (not
50	<	* <tt>fail</tt>, <tt>assertTrue</tt>, etc.) It is OK (but not
48	>	* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link
49	>	* #threadAssertEquals}, or {@link #threadAssertNull}, (not
50	>	* {@code fail}, {@code assertTrue}, etc.) It is OK (but not
51		* particularly recommended) for other code to use these forms too.
52		* Only the most typically used JUnit assertion methods are defined
53		* this way, but enough to live with.</li>
54		*
55	<	* <li> If you override {@link setUp} or {@link tearDown}, make sure
56	<	* to invoke <tt>super.setUp</tt> and <tt>super.tearDown</tt> within
55	>	* <li> If you override {@link #setUp} or {@link #tearDown}, make sure
56	>	* to invoke {@code super.setUp} and {@code super.tearDown} within
57		* them. These methods are used to clear and check for thread
58		* assertion failures.</li>
59		*
60	<	* <li>All delays and timeouts must use one of the constants <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 62 | 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 79 | 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	<	junit.textui.TestRunner.run (suite());
151	>	* Runs all JSR166 unit tests using junit.textui.TestRunner.
152	>	* Optional command line arg provides the number of iterations to
153	>	* repeat running the tests.
154	>	*/
155	>	public static void main(String[] args) {
156	>	if (useSecurityManager) {
157	>	System.err.println("Setting a permissive security manager");
158	>	Policy.setPolicy(permissivePolicy());
159	>	System.setSecurityManager(new SecurityManager());
160	>	}
161	>	int iters = (args.length == 0) ? 1 : Integer.parseInt(args[0]);
162	>
163	>	Test s = suite();
164	>	for (int i = 0; i < iters; ++i) {
165	>	junit.textui.TestRunner.run(s);
166	>	System.gc();
167	>	System.runFinalization();
168	>	}
169	>	System.exit(0);
170	>	}
171	>
172	>	public static TestSuite newTestSuite(Object... suiteOrClasses) {
173	>	TestSuite suite = new TestSuite();
174	>	for (Object suiteOrClass : suiteOrClasses) {
175	>	if (suiteOrClass instanceof TestSuite)
176	>	suite.addTest((TestSuite) suiteOrClass);
177	>	else if (suiteOrClass instanceof Class)
178	>	suite.addTest(new TestSuite((Class<?>) suiteOrClass));
179	>	else
180	>	throw new ClassCastException("not a test suite or class");
181	>	}
182	>	return suite;
183	>	}
184	>
185	>	public static void addNamedTestClasses(TestSuite suite,
186	>	String... testClassNames) {
187	>	for (String testClassName : testClassNames) {
188	>	try {
189	>	Class<?> testClass = Class.forName(testClassName);
190	>	Method m = testClass.getDeclaredMethod("suite",
191	>	new Class<?>[0]);
192	>	suite.addTest(newTestSuite((Test)m.invoke(null)));
193	>	} catch (Exception e) {
194	>	throw new Error("Missing test class", e);
195	>	}
196	>	}
197	>	}
198	>
199	>	public static final double JAVA_CLASS_VERSION;
200	>	static {
201	>	try {
202	>	JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
203	>	new java.security.PrivilegedAction<Double>() {
204	>	public Double run() {
205	>	return Double.valueOf(System.getProperty("java.class.version"));}});
206	>	} catch (Throwable t) {
207	>	throw new Error(t);
208	>	}
209		}
210
211	+	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
212	+	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
213	+	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
214	+
215		/**
216	<	* Collects all JSR166 unit tests as one suite
217	<	*/
218	<	public static Test suite ( ) {
219	<	TestSuite suite = new TestSuite("JSR166 Unit Tests");
220	<
221	<	suite.addTest(new TestSuite(AbstractExecutorServiceTest.class));
222	<	suite.addTest(new TestSuite(ArrayBlockingQueueTest.class));
223	<	suite.addTest(new TestSuite(AtomicBooleanTest.class));
224	<	suite.addTest(new TestSuite(AtomicIntegerArrayTest.class));
225	<	suite.addTest(new TestSuite(AtomicIntegerFieldUpdaterTest.class));
226	<	suite.addTest(new TestSuite(AtomicIntegerTest.class));
227	<	suite.addTest(new TestSuite(AtomicLongArrayTest.class));
228	<	suite.addTest(new TestSuite(AtomicLongFieldUpdaterTest.class));
229	<	suite.addTest(new TestSuite(AtomicLongTest.class));
230	<	suite.addTest(new TestSuite(AtomicMarkableReferenceTest.class));
231	<	suite.addTest(new TestSuite(AtomicReferenceArrayTest.class));
232	<	suite.addTest(new TestSuite(AtomicReferenceFieldUpdaterTest.class));
233	<	suite.addTest(new TestSuite(AtomicReferenceTest.class));
234	<	suite.addTest(new TestSuite(AtomicStampedReferenceTest.class));
235	<	suite.addTest(new TestSuite(ConcurrentHashMapTest.class));
236	<	suite.addTest(new TestSuite(ConcurrentLinkedQueueTest.class));
237	<	suite.addTest(new TestSuite(CopyOnWriteArrayListTest.class));
238	<	suite.addTest(new TestSuite(CopyOnWriteArraySetTest.class));
239	<	suite.addTest(new TestSuite(CountDownLatchTest.class));
240	<	suite.addTest(new TestSuite(CyclicBarrierTest.class));
241	<	suite.addTest(new TestSuite(DelayQueueTest.class));
242	<	suite.addTest(new TestSuite(ExchangerTest.class));
243	<	suite.addTest(new TestSuite(ExecutorsTest.class));
244	<	suite.addTest(new TestSuite(ExecutorCompletionServiceTest.class));
245	<	suite.addTest(new TestSuite(FutureTaskTest.class));
246	<	suite.addTest(new TestSuite(LinkedBlockingQueueTest.class));
247	<	suite.addTest(new TestSuite(LinkedListTest.class));
248	<	suite.addTest(new TestSuite(LockSupportTest.class));
249	<	suite.addTest(new TestSuite(PriorityBlockingQueueTest.class));
250	<	suite.addTest(new TestSuite(PriorityQueueTest.class));
251	<	suite.addTest(new TestSuite(ReentrantLockTest.class));
252	<	suite.addTest(new TestSuite(ReentrantReadWriteLockTest.class));
253	<	suite.addTest(new TestSuite(ScheduledExecutorTest.class));
254	<	suite.addTest(new TestSuite(SemaphoreTest.class));
255	<	suite.addTest(new TestSuite(SynchronousQueueTest.class));
256	<	suite.addTest(new TestSuite(SystemTest.class));
257	<	suite.addTest(new TestSuite(ThreadLocalTest.class));
258	<	suite.addTest(new TestSuite(ThreadPoolExecutorTest.class));
259	<	suite.addTest(new TestSuite(ThreadTest.class));
260	<	suite.addTest(new TestSuite(TimeUnitTest.class));
261	<
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	>	"ForkJoinPool8Test",
291	>	};
292	>	addNamedTestClasses(suite, java8TestClassNames);
293	>	}
294	>
295		return suite;
296		}
297
#	Line 150 | Line 303 | public class JSR166TestCase extends Test
303
304
305		/**
306	<	* Return the shortest timed delay. This could
307	<	* be reimplmented to use for example a Property.
308	<	*/
306	>	* Returns the shortest timed delay. This could
307	>	* be reimplemented to use for example a Property.
308	>	*/
309		protected long getShortDelay() {
310	<	return 100;
310	>	return 50;
311		}
312
160	–
313		/**
314	<	* Set delays as multiples of SHORT_DELAY.
314	>	* Sets delays as multiples of SHORT_DELAY.
315		*/
316	<	protected  void setDelays() {
316	>	protected void setDelays() {
317		SHORT_DELAY_MS = getShortDelay();
318	<	SMALL_DELAY_MS = SHORT_DELAY_MS * 5;
318	>	SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
319		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
320	<	LONG_DELAY_MS = SHORT_DELAY_MS * 50;
320	>	LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
321	>	}
322	>
323	>	/**
324	>	* Returns a timeout in milliseconds to be used in tests that
325	>	* verify that operations block or time out.
326	>	*/
327	>	long timeoutMillis() {
328	>	return SHORT_DELAY_MS / 4;
329	>	}
330	>
331	>	/**
332	>	* Returns a new Date instance representing a time delayMillis
333	>	* milliseconds in the future.
334	>	*/
335	>	Date delayedDate(long delayMillis) {
336	>	return new Date(System.currentTimeMillis() + delayMillis);
337		}
338
339		/**
340	<	* Flag set true if any threadAssert methods fail
340	>	* The first exception encountered if any threadAssertXXX method fails.
341		*/
342	<	volatile boolean threadFailed;
342	>	private final AtomicReference<Throwable> threadFailure
343	>	= new AtomicReference<Throwable>(null);
344
345		/**
346	<	* Initialize test to indicate that no thread assertions have failed
346	>	* Records an exception so that it can be rethrown later in the test
347	>	* harness thread, triggering a test case failure.  Only the first
348	>	* failure is recorded; subsequent calls to this method from within
349	>	* the same test have no effect.
350		*/
351	<	public void setUp() {
351	>	public void threadRecordFailure(Throwable t) {
352	>	threadFailure.compareAndSet(null, t);
353	>	}
354	>
355	>	public void setUp() {
356		setDelays();
181	–	threadFailed = false;
357		}
358
359		/**
360	<	* Trigger test case failure if any thread assertions have failed
360	>	* Extra checks that get done for all test cases.
361	>	*
362	>	* Triggers test case failure if any thread assertions have failed,
363	>	* by rethrowing, in the test harness thread, any exception recorded
364	>	* earlier by threadRecordFailure.
365	>	*
366	>	* Triggers test case failure if interrupt status is set in the main thread.
367	>	*/
368	>	public void tearDown() throws Exception {
369	>	Throwable t = threadFailure.getAndSet(null);
370	>	if (t != null) {
371	>	if (t instanceof Error)
372	>	throw (Error) t;
373	>	else if (t instanceof RuntimeException)
374	>	throw (RuntimeException) t;
375	>	else if (t instanceof Exception)
376	>	throw (Exception) t;
377	>	else {
378	>	AssertionFailedError afe =
379	>	new AssertionFailedError(t.toString());
380	>	afe.initCause(t);
381	>	throw afe;
382	>	}
383	>	}
384	>
385	>	if (Thread.interrupted())
386	>	throw new AssertionFailedError("interrupt status set in main thread");
387	>
388	>	checkForkJoinPoolThreadLeaks();
389	>	}
390	>
391	>	/**
392	>	* Find missing try { ... } finally { joinPool(e); }
393		*/
394	<	public void tearDown() {
395	<	assertFalse(threadFailed);
394	>	void checkForkJoinPoolThreadLeaks() throws InterruptedException {
395	>	Thread[] survivors = new Thread[5];
396	>	int count = Thread.enumerate(survivors);
397	>	for (int i = 0; i < count; i++) {
398	>	Thread thread = survivors[i];
399	>	String name = thread.getName();
400	>	if (name.startsWith("ForkJoinPool-")) {
401	>	// give thread some time to terminate
402	>	thread.join(LONG_DELAY_MS);
403	>	if (!thread.isAlive()) continue;
404	>	thread.stop();
405	>	throw new AssertionFailedError
406	>	(String.format("Found leaked ForkJoinPool thread test=%s thread=%s%n",
407	>	toString(), name));
408	>	}
409	>	}
410		}
411
412		/**
413	<	* Fail, also setting status to indicate current testcase should fail
414	<	*/
413	>	* Just like fail(reason), but additionally recording (using
414	>	* threadRecordFailure) any AssertionFailedError thrown, so that
415	>	* the current testcase will fail.
416	>	*/
417		public void threadFail(String reason) {
418	<	threadFailed = true;
419	<	fail(reason);
418	>	try {
419	>	fail(reason);
420	>	} catch (AssertionFailedError t) {
421	>	threadRecordFailure(t);
422	>	fail(reason);
423	>	}
424		}
425
426		/**
427	<	* If expression not true, set status to indicate current testcase
428	<	* should fail
429	<	*/
427	>	* Just like assertTrue(b), but additionally recording (using
428	>	* threadRecordFailure) any AssertionFailedError thrown, so that
429	>	* the current testcase will fail.
430	>	*/
431		public void threadAssertTrue(boolean b) {
432	<	if (!b) {
205	<	threadFailed = true;
432	>	try {
433		assertTrue(b);
434	+	} catch (AssertionFailedError t) {
435	+	threadRecordFailure(t);
436	+	throw t;
437		}
438		}
439
440		/**
441	<	* If expression not false, set status to indicate current testcase
442	<	* should fail
443	<	*/
441	>	* Just like assertFalse(b), but additionally recording (using
442	>	* threadRecordFailure) any AssertionFailedError thrown, so that
443	>	* the current testcase will fail.
444	>	*/
445		public void threadAssertFalse(boolean b) {
446	<	if (b) {
216	<	threadFailed = true;
446	>	try {
447		assertFalse(b);
448	+	} catch (AssertionFailedError t) {
449	+	threadRecordFailure(t);
450	+	throw t;
451		}
452		}
453
454		/**
455	<	* If argument not null, set status to indicate current testcase
456	<	* should fail
457	<	*/
455	>	* Just like assertNull(x), but additionally recording (using
456	>	* threadRecordFailure) any AssertionFailedError thrown, so that
457	>	* the current testcase will fail.
458	>	*/
459		public void threadAssertNull(Object x) {
460	<	if (x != null) {
227	<	threadFailed = true;
460	>	try {
461		assertNull(x);
462	+	} catch (AssertionFailedError t) {
463	+	threadRecordFailure(t);
464	+	throw t;
465		}
466		}
467
468		/**
469	<	* If arguments not equal, set status to indicate current testcase
470	<	* should fail
471	<	*/
469	>	* Just like assertEquals(x, y), but additionally recording (using
470	>	* threadRecordFailure) any AssertionFailedError thrown, so that
471	>	* the current testcase will fail.
472	>	*/
473		public void threadAssertEquals(long x, long y) {
474	<	if (x != y) {
238	<	threadFailed = true;
474	>	try {
475		assertEquals(x, y);
476	+	} catch (AssertionFailedError t) {
477	+	threadRecordFailure(t);
478	+	throw t;
479		}
480		}
481
482		/**
483	<	* If arguments not equal, set status to indicate current testcase
484	<	* should fail
485	<	*/
483	>	* Just like assertEquals(x, y), but additionally recording (using
484	>	* threadRecordFailure) any AssertionFailedError thrown, so that
485	>	* the current testcase will fail.
486	>	*/
487		public void threadAssertEquals(Object x, Object y) {
488	<	if (x != y && (x == null || !x.equals(y))) {
249	<	threadFailed = true;
488	>	try {
489		assertEquals(x, y);
490	+	} catch (AssertionFailedError t) {
491	+	threadRecordFailure(t);
492	+	throw t;
493	+	} catch (Throwable t) {
494	+	threadUnexpectedException(t);
495	+	}
496	+	}
497	+
498	+	/**
499	+	* Just like assertSame(x, y), but additionally recording (using
500	+	* threadRecordFailure) any AssertionFailedError thrown, so that
501	+	* the current testcase will fail.
502	+	*/
503	+	public void threadAssertSame(Object x, Object y) {
504	+	try {
505	+	assertSame(x, y);
506	+	} catch (AssertionFailedError t) {
507	+	threadRecordFailure(t);
508	+	throw t;
509		}
510		}
511
512		/**
513	<	* threadFail with message "should throw exception"
514	<	*/
513	>	* Calls threadFail with message "should throw exception".
514	>	*/
515		public void threadShouldThrow() {
516	<	threadFailed = true;
259	<	fail("should throw exception");
516	>	threadFail("should throw exception");
517		}
518
519		/**
520	<	* threadFail with message "Unexpected exception"
520	>	* Calls threadFail with message "should throw" + exceptionName.
521		*/
522	<	public void threadUnexpectedException() {
523	<	threadFailed = true;
267	<	fail("Unexpected exception");
522	>	public void threadShouldThrow(String exceptionName) {
523	>	threadFail("should throw " + exceptionName);
524		}
525
526	+	/**
527	+	* Records the given exception using {@link #threadRecordFailure},
528	+	* then rethrows the exception, wrapping it in an
529	+	* AssertionFailedError if necessary.
530	+	*/
531	+	public void threadUnexpectedException(Throwable t) {
532	+	threadRecordFailure(t);
533	+	t.printStackTrace();
534	+	if (t instanceof RuntimeException)
535	+	throw (RuntimeException) t;
536	+	else if (t instanceof Error)
537	+	throw (Error) t;
538	+	else {
539	+	AssertionFailedError afe =
540	+	new AssertionFailedError("unexpected exception: " + t);
541	+	afe.initCause(t);
542	+	throw afe;
543	+	}
544	+	}
545	+
546	+	/**
547	+	* Delays, via Thread.sleep, for the given millisecond delay, but
548	+	* if the sleep is shorter than specified, may re-sleep or yield
549	+	* until time elapses.
550	+	*/
551	+	static void delay(long millis) throws InterruptedException {
552	+	long startTime = System.nanoTime();
553	+	long ns = millis * 1000 * 1000;
554	+	for (;;) {
555	+	if (millis > 0L)
556	+	Thread.sleep(millis);
557	+	else // too short to sleep
558	+	Thread.yield();
559	+	long d = ns - (System.nanoTime() - startTime);
560	+	if (d > 0L)
561	+	millis = d / (1000 * 1000);
562	+	else
563	+	break;
564	+	}
565	+	}
566
567		/**
568	<	* Wait out termination of a thread pool or fail doing so
568	>	* Waits out termination of a thread pool or fails doing so.
569		*/
570	<	public void joinPool(ExecutorService exec) {
570	>	void joinPool(ExecutorService exec) {
571		try {
572		exec.shutdown();
573	<	assertTrue(exec.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
574	<	} catch(InterruptedException ie) {
575	<	fail("Unexpected exception");
573	>	assertTrue("ExecutorService did not terminate in a timely manner",
574	>	exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS));
575	>	} catch (SecurityException ok) {
576	>	// Allowed in case test doesn't have privs
577	>	} catch (InterruptedException ie) {
578	>	fail("Unexpected InterruptedException");
579	>	}
580	>	}
581	>
582	>	/**
583	>	* A debugging tool to print all stack traces, as jstack does.
584	>	*/
585	>	static void printAllStackTraces() {
586	>	for (ThreadInfo info :
587	>	ManagementFactory.getThreadMXBean()
588	>	.dumpAllThreads(true, true))
589	>	System.err.print(info);
590	>	}
591	>
592	>	/**
593	>	* Checks that thread does not terminate within the default
594	>	* millisecond delay of {@code timeoutMillis()}.
595	>	*/
596	>	void assertThreadStaysAlive(Thread thread) {
597	>	assertThreadStaysAlive(thread, timeoutMillis());
598	>	}
599	>
600	>	/**
601	>	* Checks that thread does not terminate within the given millisecond delay.
602	>	*/
603	>	void assertThreadStaysAlive(Thread thread, long millis) {
604	>	try {
605	>	// No need to optimize the failing case via Thread.join.
606	>	delay(millis);
607	>	assertTrue(thread.isAlive());
608	>	} catch (InterruptedException ie) {
609	>	fail("Unexpected InterruptedException");
610	>	}
611	>	}
612	>
613	>	/**
614	>	* Checks that the threads do not terminate within the default
615	>	* millisecond delay of {@code timeoutMillis()}.
616	>	*/
617	>	void assertThreadsStayAlive(Thread... threads) {
618	>	assertThreadsStayAlive(timeoutMillis(), threads);
619	>	}
620	>
621	>	/**
622	>	* Checks that the threads do not terminate within the given millisecond delay.
623	>	*/
624	>	void assertThreadsStayAlive(long millis, Thread... threads) {
625	>	try {
626	>	// No need to optimize the failing case via Thread.join.
627	>	delay(millis);
628	>	for (Thread thread : threads)
629	>	assertTrue(thread.isAlive());
630	>	} catch (InterruptedException ie) {
631	>	fail("Unexpected InterruptedException");
632		}
633		}
634
635	+	/**
636	+	* Checks that future.get times out, with the default timeout of
637	+	* {@code timeoutMillis()}.
638	+	*/
639	+	void assertFutureTimesOut(Future future) {
640	+	assertFutureTimesOut(future, timeoutMillis());
641	+	}
642	+
643	+	/**
644	+	* Checks that future.get times out, with the given millisecond timeout.
645	+	*/
646	+	void assertFutureTimesOut(Future future, long timeoutMillis) {
647	+	long startTime = System.nanoTime();
648	+	try {
649	+	future.get(timeoutMillis, MILLISECONDS);
650	+	shouldThrow();
651	+	} catch (TimeoutException success) {
652	+	} catch (Exception e) {
653	+	threadUnexpectedException(e);
654	+	} finally { future.cancel(true); }
655	+	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
656	+	}
657
658		/**
659	<	* fail with message "should throw exception"
660	<	*/
659	>	* Fails with message "should throw exception".
660	>	*/
661		public void shouldThrow() {
662		fail("Should throw exception");
663		}
664
665		/**
666	<	* fail with message "Unexpected exception"
666	>	* Fails with message "should throw " + exceptionName.
667		*/
668	<	public void unexpectedException() {
669	<	fail("Unexpected exception");
668	>	public void shouldThrow(String exceptionName) {
669	>	fail("Should throw " + exceptionName);
670		}
671
298	–
672		/**
673		* The number of elements to place in collections, arrays, etc.
674		*/
675	<	static final int SIZE = 20;
675	>	public static final int SIZE = 20;
676
677		// Some convenient Integer constants
678
679	<	static final Integer zero = new Integer(0);
680	<	static final Integer one = new Integer(1);
681	<	static final Integer two = new Integer(2);
682	<	static final Integer three  = new Integer(3);
683	<	static final Integer four  = new Integer(4);
684	<	static final Integer five  = new Integer(5);
685	<	static final Integer six = new Integer(6);
686	<	static final Integer seven = new Integer(7);
687	<	static final Integer eight = new Integer(8);
688	<	static final Integer nine = new Integer(9);
689	<	static final Integer m1  = new Integer(-1);
690	<	static final Integer m2  = new Integer(-2);
691	<	static final Integer m3  = new Integer(-3);
692	<	static final Integer m4 = new Integer(-4);
693	<	static final Integer m5 = new Integer(-5);
694	<	static final Integer m10 = new Integer(-10);
679	>	public static final Integer zero  = new Integer(0);
680	>	public static final Integer one   = new Integer(1);
681	>	public static final Integer two   = new Integer(2);
682	>	public static final Integer three = new Integer(3);
683	>	public static final Integer four  = new Integer(4);
684	>	public static final Integer five  = new Integer(5);
685	>	public static final Integer six   = new Integer(6);
686	>	public static final Integer seven = new Integer(7);
687	>	public static final Integer eight = new Integer(8);
688	>	public static final Integer nine  = new Integer(9);
689	>	public static final Integer m1  = new Integer(-1);
690	>	public static final Integer m2  = new Integer(-2);
691	>	public static final Integer m3  = new Integer(-3);
692	>	public static final Integer m4  = new Integer(-4);
693	>	public static final Integer m5  = new Integer(-5);
694	>	public static final Integer m6  = new Integer(-6);
695	>	public static final Integer m10 = new Integer(-10);
696	>
697	>
698	>	/**
699	>	* Runs Runnable r with a security policy that permits precisely
700	>	* the specified permissions.  If there is no current security
701	>	* manager, the runnable is run twice, both with and without a
702	>	* security manager.  We require that any security manager permit
703	>	* getPolicy/setPolicy.
704	>	*/
705	>	public void runWithPermissions(Runnable r, Permission... permissions) {
706	>	SecurityManager sm = System.getSecurityManager();
707	>	if (sm == null) {
708	>	r.run();
709	>	}
710	>	runWithSecurityManagerWithPermissions(r, permissions);
711	>	}
712	>
713	>	/**
714	>	* Runs Runnable r with a security policy that permits precisely
715	>	* the specified permissions.  If there is no current security
716	>	* manager, a temporary one is set for the duration of the
717	>	* Runnable.  We require that any security manager permit
718	>	* getPolicy/setPolicy.
719	>	*/
720	>	public void runWithSecurityManagerWithPermissions(Runnable r,
721	>	Permission... permissions) {
722	>	SecurityManager sm = System.getSecurityManager();
723	>	if (sm == null) {
724	>	Policy savedPolicy = Policy.getPolicy();
725	>	try {
726	>	Policy.setPolicy(permissivePolicy());
727	>	System.setSecurityManager(new SecurityManager());
728	>	runWithSecurityManagerWithPermissions(r, permissions);
729	>	} finally {
730	>	System.setSecurityManager(null);
731	>	Policy.setPolicy(savedPolicy);
732	>	}
733	>	} else {
734	>	Policy savedPolicy = Policy.getPolicy();
735	>	AdjustablePolicy policy = new AdjustablePolicy(permissions);
736	>	Policy.setPolicy(policy);
737	>
738	>	try {
739	>	r.run();
740	>	} finally {
741	>	policy.addPermission(new SecurityPermission("setPolicy"));
742	>	Policy.setPolicy(savedPolicy);
743	>	}
744	>	}
745	>	}
746
747	+	/**
748	+	* Runs a runnable without any permissions.
749	+	*/
750	+	public void runWithoutPermissions(Runnable r) {
751	+	runWithPermissions(r);
752	+	}
753
754		/**
755		* A security policy where new permissions can be dynamically added
756		* or all cleared.
757		*/
758	<	static class AdjustablePolicy extends java.security.Policy {
758	>	public static class AdjustablePolicy extends java.security.Policy {
759		Permissions perms = new Permissions();
760	<	AdjustablePolicy() { }
760	>	AdjustablePolicy(Permission... permissions) {
761	>	for (Permission permission : permissions)
762	>	perms.add(permission);
763	>	}
764		void addPermission(Permission perm) { perms.add(perm); }
765		void clearPermissions() { perms = new Permissions(); }
766	<	public PermissionCollection getPermissions(CodeSource cs) {
767	<	return perms;
768	<	}
769	<	public PermissionCollection getPermissions(ProtectionDomain pd) {
770	<	return perms;
771	<	}
772	<	public boolean implies(ProtectionDomain pd, Permission p) {
773	<	return perms.implies(p);
774	<	}
775	<	public void refresh() {}
766	>	public PermissionCollection getPermissions(CodeSource cs) {
767	>	return perms;
768	>	}
769	>	public PermissionCollection getPermissions(ProtectionDomain pd) {
770	>	return perms;
771	>	}
772	>	public boolean implies(ProtectionDomain pd, Permission p) {
773	>	return perms.implies(p);
774	>	}
775	>	public void refresh() {}
776	>	public String toString() {
777	>	List<Permission> ps = new ArrayList<Permission>();
778	>	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
779	>	ps.add(e.nextElement());
780	>	return "AdjustablePolicy with permissions " + ps;
781	>	}
782		}
783
784	+	/**
785	+	* Returns a policy containing all the permissions we ever need.
786	+	*/
787	+	public static Policy permissivePolicy() {
788	+	return new AdjustablePolicy
789	+	// Permissions j.u.c. needs directly
790	+	(new RuntimePermission("modifyThread"),
791	+	new RuntimePermission("getClassLoader"),
792	+	new RuntimePermission("setContextClassLoader"),
793	+	// Permissions needed to change permissions!
794	+	new SecurityPermission("getPolicy"),
795	+	new SecurityPermission("setPolicy"),
796	+	new RuntimePermission("setSecurityManager"),
797	+	// Permissions needed by the junit test harness
798	+	new RuntimePermission("accessDeclaredMembers"),
799	+	new PropertyPermission("*", "read"),
800	+	new java.io.FilePermission("<<ALL FILES>>", "read"));
801	+	}
802
803	<	// Some convenient Runnable classes
803	>	/**
804	>	* Sleeps until the given time has elapsed.
805	>	* Throws AssertionFailedError if interrupted.
806	>	*/
807	>	void sleep(long millis) {
808	>	try {
809	>	delay(millis);
810	>	} catch (InterruptedException ie) {
811	>	AssertionFailedError afe =
812	>	new AssertionFailedError("Unexpected InterruptedException");
813	>	afe.initCause(ie);
814	>	throw afe;
815	>	}
816	>	}
817
818	<	static class NoOpRunnable implements Runnable {
819	<	public void run() {}
818	>	/**
819	>	* Spin-waits up to the specified number of milliseconds for the given
820	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
821	>	*/
822	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
823	>	long startTime = System.nanoTime();
824	>	for (;;) {
825	>	Thread.State s = thread.getState();
826	>	if (s == Thread.State.BLOCKED ||
827	>	s == Thread.State.WAITING ||
828	>	s == Thread.State.TIMED_WAITING)
829	>	return;
830	>	else if (s == Thread.State.TERMINATED)
831	>	fail("Unexpected thread termination");
832	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
833	>	threadAssertTrue(thread.isAlive());
834	>	return;
835	>	}
836	>	Thread.yield();
837	>	}
838		}
839
840	<	static class NoOpCallable implements Callable {
841	<	public Object call() { return Boolean.TRUE; }
840	>	/**
841	>	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
842	>	* state: BLOCKED, WAITING, or TIMED_WAITING.
843	>	*/
844	>	void waitForThreadToEnterWaitState(Thread thread) {
845	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
846		}
847
848	<	static final String TEST_STRING = "a test string";
848	>	/**
849	>	* Returns the number of milliseconds since time given by
850	>	* startNanoTime, which must have been previously returned from a
851	>	* call to {@link System.nanoTime()}.
852	>	*/
853	>	long millisElapsedSince(long startNanoTime) {
854	>	return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
855	>	}
856
857	<	static class StringTask implements Callable<String> {
858	<	public String call() { return TEST_STRING; }
857	>	/**
858	>	* Returns a new started daemon Thread running the given runnable.
859	>	*/
860	>	Thread newStartedThread(Runnable runnable) {
861	>	Thread t = new Thread(runnable);
862	>	t.setDaemon(true);
863	>	t.start();
864	>	return t;
865		}
866
867	<	static class NPETask implements Callable<String> {
868	<	public String call() { throw new NullPointerException(); }
867	>	/**
868	>	* Waits for the specified time (in milliseconds) for the thread
869	>	* to terminate (using {@link Thread#join(long)}), else interrupts
870	>	* the thread (in the hope that it may terminate later) and fails.
871	>	*/
872	>	void awaitTermination(Thread t, long timeoutMillis) {
873	>	try {
874	>	t.join(timeoutMillis);
875	>	} catch (InterruptedException ie) {
876	>	threadUnexpectedException(ie);
877	>	} finally {
878	>	if (t.getState() != Thread.State.TERMINATED) {
879	>	t.interrupt();
880	>	fail("Test timed out");
881	>	}
882	>	}
883		}
884
885	<	static class CallableOne implements Callable<Integer> {
886	<	public Integer call() { return one; }
885	>	/**
886	>	* Waits for LONG_DELAY_MS milliseconds for the thread to
887	>	* terminate (using {@link Thread#join(long)}), else interrupts
888	>	* the thread (in the hope that it may terminate later) and fails.
889	>	*/
890	>	void awaitTermination(Thread t) {
891	>	awaitTermination(t, LONG_DELAY_MS);
892		}
893
894	<	class ShortRunnable implements Runnable {
895	<	public void run() {
894	>	// Some convenient Runnable classes
895	>
896	>	public abstract class CheckedRunnable implements Runnable {
897	>	protected abstract void realRun() throws Throwable;
898	>
899	>	public final void run() {
900		try {
901	<	Thread.sleep(SHORT_DELAY_MS);
902	<	}
903	<	catch(Exception e) {
376	<	threadUnexpectedException();
901	>	realRun();
902	>	} catch (Throwable t) {
903	>	threadUnexpectedException(t);
904		}
905		}
906		}
907
908	<	class ShortInterruptedRunnable implements Runnable {
909	<	public void run() {
908	>	public abstract class RunnableShouldThrow implements Runnable {
909	>	protected abstract void realRun() throws Throwable;
910	>
911	>	final Class<?> exceptionClass;
912	>
913	>	<T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) {
914	>	this.exceptionClass = exceptionClass;
915	>	}
916	>
917	>	public final void run() {
918		try {
919	<	Thread.sleep(SHORT_DELAY_MS);
920	<	threadShouldThrow();
921	<	}
922	<	catch(InterruptedException success) {
919	>	realRun();
920	>	threadShouldThrow(exceptionClass.getSimpleName());
921	>	} catch (Throwable t) {
922	>	if (! exceptionClass.isInstance(t))
923	>	threadUnexpectedException(t);
924		}
925		}
926		}
927
928	<	class SmallRunnable implements Runnable {
929	<	public void run() {
928	>	public abstract class ThreadShouldThrow extends Thread {
929	>	protected abstract void realRun() throws Throwable;
930	>
931	>	final Class<?> exceptionClass;
932	>
933	>	<T extends Throwable> ThreadShouldThrow(Class<T> exceptionClass) {
934	>	this.exceptionClass = exceptionClass;
935	>	}
936	>
937	>	public final void run() {
938		try {
939	<	Thread.sleep(SMALL_DELAY_MS);
940	<	}
941	<	catch(Exception e) {
942	<	threadUnexpectedException();
939	>	realRun();
940	>	threadShouldThrow(exceptionClass.getSimpleName());
941	>	} catch (Throwable t) {
942	>	if (! exceptionClass.isInstance(t))
943	>	threadUnexpectedException(t);
944		}
945		}
946		}
947
948	<	class SmallPossiblyInterruptedRunnable implements Runnable {
949	<	public void run() {
948	>	public abstract class CheckedInterruptedRunnable implements Runnable {
949	>	protected abstract void realRun() throws Throwable;
950	>
951	>	public final void run() {
952		try {
953	<	Thread.sleep(SMALL_DELAY_MS);
954	<	}
955	<	catch(Exception e) {
953	>	realRun();
954	>	threadShouldThrow("InterruptedException");
955	>	} catch (InterruptedException success) {
956	>	threadAssertFalse(Thread.interrupted());
957	>	} catch (Throwable t) {
958	>	threadUnexpectedException(t);
959		}
960		}
961		}
962
963	<	class SmallCallable implements Callable {
964	<	public Object call() {
963	>	public abstract class CheckedCallable<T> implements Callable<T> {
964	>	protected abstract T realCall() throws Throwable;
965	>
966	>	public final T call() {
967		try {
968	<	Thread.sleep(SMALL_DELAY_MS);
969	<	}
970	<	catch(Exception e) {
971	<	threadUnexpectedException();
968	>	return realCall();
969	>	} catch (Throwable t) {
970	>	threadUnexpectedException(t);
971	>	return null;
972		}
421	–	return Boolean.TRUE;
973		}
974		}
975
976	<	class SmallInterruptedRunnable implements Runnable {
977	<	public void run() {
976	>	public abstract class CheckedInterruptedCallable<T>
977	>	implements Callable<T> {
978	>	protected abstract T realCall() throws Throwable;
979	>
980	>	public final T call() {
981		try {
982	<	Thread.sleep(SMALL_DELAY_MS);
983	<	threadShouldThrow();
984	<	}
985	<	catch(InterruptedException success) {
982	>	T result = realCall();
983	>	threadShouldThrow("InterruptedException");
984	>	return result;
985	>	} catch (InterruptedException success) {
986	>	threadAssertFalse(Thread.interrupted());
987	>	} catch (Throwable t) {
988	>	threadUnexpectedException(t);
989		}
990	+	return null;
991		}
992		}
993
994	+	public static class NoOpRunnable implements Runnable {
995	+	public void run() {}
996	+	}
997	+
998	+	public static class NoOpCallable implements Callable {
999	+	public Object call() { return Boolean.TRUE; }
1000	+	}
1001
1002	<	class MediumRunnable implements Runnable {
1003	<	public void run() {
1002	>	public static final String TEST_STRING = "a test string";
1003	>
1004	>	public static class StringTask implements Callable<String> {
1005	>	public String call() { return TEST_STRING; }
1006	>	}
1007	>
1008	>	public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
1009	>	return new CheckedCallable<String>() {
1010	>	protected String realCall() {
1011	>	try {
1012	>	latch.await();
1013	>	} catch (InterruptedException quittingTime) {}
1014	>	return TEST_STRING;
1015	>	}};
1016	>	}
1017	>
1018	>	public Runnable awaiter(final CountDownLatch latch) {
1019	>	return new CheckedRunnable() {
1020	>	public void realRun() throws InterruptedException {
1021	>	await(latch);
1022	>	}};
1023	>	}
1024	>
1025	>	public void await(CountDownLatch latch) {
1026	>	try {
1027	>	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1028	>	} catch (Throwable t) {
1029	>	threadUnexpectedException(t);
1030	>	}
1031	>	}
1032	>
1033	>	public void await(Semaphore semaphore) {
1034	>	try {
1035	>	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1036	>	} catch (Throwable t) {
1037	>	threadUnexpectedException(t);
1038	>	}
1039	>	}
1040	>
1041	>	//     /**
1042	>	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1043	>	//      */
1044	>	//     public void await(AtomicBoolean flag) {
1045	>	//         await(flag, LONG_DELAY_MS);
1046	>	//     }
1047	>
1048	>	//     /**
1049	>	//      * Spin-waits up to the specified timeout until flag becomes true.
1050	>	//      */
1051	>	//     public void await(AtomicBoolean flag, long timeoutMillis) {
1052	>	//         long startTime = System.nanoTime();
1053	>	//         while (!flag.get()) {
1054	>	//             if (millisElapsedSince(startTime) > timeoutMillis)
1055	>	//                 throw new AssertionFailedError("timed out");
1056	>	//             Thread.yield();
1057	>	//         }
1058	>	//     }
1059	>
1060	>	public static class NPETask implements Callable<String> {
1061	>	public String call() { throw new NullPointerException(); }
1062	>	}
1063	>
1064	>	public static class CallableOne implements Callable<Integer> {
1065	>	public Integer call() { return one; }
1066	>	}
1067	>
1068	>	public class ShortRunnable extends CheckedRunnable {
1069	>	protected void realRun() throws Throwable {
1070	>	delay(SHORT_DELAY_MS);
1071	>	}
1072	>	}
1073	>
1074	>	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1075	>	protected void realRun() throws InterruptedException {
1076	>	delay(SHORT_DELAY_MS);
1077	>	}
1078	>	}
1079	>
1080	>	public class SmallRunnable extends CheckedRunnable {
1081	>	protected void realRun() throws Throwable {
1082	>	delay(SMALL_DELAY_MS);
1083	>	}
1084	>	}
1085	>
1086	>	public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1087	>	protected void realRun() {
1088		try {
1089	<	Thread.sleep(MEDIUM_DELAY_MS);
1090	<	}
442	<	catch(Exception e) {
443	<	threadUnexpectedException();
444	<	}
1089	>	delay(SMALL_DELAY_MS);
1090	>	} catch (InterruptedException ok) {}
1091		}
1092		}
1093
1094	<	class MediumInterruptedRunnable implements Runnable {
1095	<	public void run() {
1094	>	public class SmallCallable extends CheckedCallable {
1095	>	protected Object realCall() throws InterruptedException {
1096	>	delay(SMALL_DELAY_MS);
1097	>	return Boolean.TRUE;
1098	>	}
1099	>	}
1100	>
1101	>	public class MediumRunnable extends CheckedRunnable {
1102	>	protected void realRun() throws Throwable {
1103	>	delay(MEDIUM_DELAY_MS);
1104	>	}
1105	>	}
1106	>
1107	>	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1108	>	protected void realRun() throws InterruptedException {
1109	>	delay(MEDIUM_DELAY_MS);
1110	>	}
1111	>	}
1112	>
1113	>	public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1114	>	return new CheckedRunnable() {
1115	>	protected void realRun() {
1116	>	try {
1117	>	delay(timeoutMillis);
1118	>	} catch (InterruptedException ok) {}
1119	>	}};
1120	>	}
1121	>
1122	>	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1123	>	protected void realRun() {
1124		try {
1125	<	Thread.sleep(MEDIUM_DELAY_MS);
1126	<	threadShouldThrow();
453	<	}
454	<	catch(InterruptedException success) {
455	<	}
1125	>	delay(MEDIUM_DELAY_MS);
1126	>	} catch (InterruptedException ok) {}
1127		}
1128		}
1129
1130	<	class MediumPossiblyInterruptedRunnable implements Runnable {
1131	<	public void run() {
1130	>	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1131	>	protected void realRun() {
1132		try {
1133	<	Thread.sleep(MEDIUM_DELAY_MS);
1134	<	}
464	<	catch(InterruptedException success) {
465	<	}
1133	>	delay(LONG_DELAY_MS);
1134	>	} catch (InterruptedException ok) {}
1135		}
1136		}
1137
1138		/**
1139		* For use as ThreadFactory in constructors
1140		*/
1141	<	static class SimpleThreadFactory implements ThreadFactory{
1142	<	public Thread newThread(Runnable r){
1141	>	public static class SimpleThreadFactory implements ThreadFactory {
1142	>	public Thread newThread(Runnable r) {
1143		return new Thread(r);
1144	<	}
1144	>	}
1145	>	}
1146	>
1147	>	public interface TrackedRunnable extends Runnable {
1148	>	boolean isDone();
1149	>	}
1150	>
1151	>	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1152	>	return new TrackedRunnable() {
1153	>	private volatile boolean done = false;
1154	>	public boolean isDone() { return done; }
1155	>	public void run() {
1156	>	try {
1157	>	delay(timeoutMillis);
1158	>	done = true;
1159	>	} catch (InterruptedException ok) {}
1160	>	}
1161	>	};
1162		}
1163
1164	<	static class TrackedShortRunnable implements Runnable {
1165	<	volatile boolean done = false;
1164	>	public static class TrackedShortRunnable implements Runnable {
1165	>	public volatile boolean done = false;
1166		public void run() {
1167		try {
1168	<	Thread.sleep(SMALL_DELAY_MS);
1168	>	delay(SHORT_DELAY_MS);
1169		done = true;
1170	<	} catch(Exception e){
485	<	}
1170	>	} catch (InterruptedException ok) {}
1171		}
1172		}
1173
1174	<	static class TrackedMediumRunnable implements Runnable {
1175	<	volatile boolean done = false;
1174	>	public static class TrackedSmallRunnable implements Runnable {
1175	>	public volatile boolean done = false;
1176		public void run() {
1177		try {
1178	<	Thread.sleep(MEDIUM_DELAY_MS);
1178	>	delay(SMALL_DELAY_MS);
1179		done = true;
1180	<	} catch(Exception e){
496	<	}
1180	>	} catch (InterruptedException ok) {}
1181		}
1182		}
1183
1184	<	static class TrackedLongRunnable implements Runnable {
1185	<	volatile boolean done = false;
1184	>	public static class TrackedMediumRunnable implements Runnable {
1185	>	public volatile boolean done = false;
1186		public void run() {
1187		try {
1188	<	Thread.sleep(LONG_DELAY_MS);
1188	>	delay(MEDIUM_DELAY_MS);
1189		done = true;
1190	<	} catch(Exception e){
1191	<	}
1190	>	} catch (InterruptedException ok) {}
1191	>	}
1192	>	}
1193	>
1194	>	public static class TrackedLongRunnable implements Runnable {
1195	>	public volatile boolean done = false;
1196	>	public void run() {
1197	>	try {
1198	>	delay(LONG_DELAY_MS);
1199	>	done = true;
1200	>	} catch (InterruptedException ok) {}
1201		}
1202		}
1203
1204	<	static class TrackedNoOpRunnable implements Runnable {
1205	<	volatile boolean done = false;
1204	>	public static class TrackedNoOpRunnable implements Runnable {
1205	>	public volatile boolean done = false;
1206		public void run() {
1207		done = true;
1208		}
1209		}
1210
1211	<	static class TrackedCallable implements Callable {
1212	<	volatile boolean done = false;
1211	>	public static class TrackedCallable implements Callable {
1212	>	public volatile boolean done = false;
1213		public Object call() {
1214		try {
1215	<	Thread.sleep(SMALL_DELAY_MS);
1215	>	delay(SMALL_DELAY_MS);
1216		done = true;
1217	<	} catch(Exception e){
525	<	}
1217	>	} catch (InterruptedException ok) {}
1218		return Boolean.TRUE;
1219		}
1220		}
1221
1222		/**
1223	+	* Analog of CheckedRunnable for RecursiveAction
1224	+	*/
1225	+	public abstract class CheckedRecursiveAction extends RecursiveAction {
1226	+	protected abstract void realCompute() throws Throwable;
1227	+
1228	+	public final void compute() {
1229	+	try {
1230	+	realCompute();
1231	+	} catch (Throwable t) {
1232	+	threadUnexpectedException(t);
1233	+	}
1234	+	}
1235	+	}
1236	+
1237	+	/**
1238	+	* Analog of CheckedCallable for RecursiveTask
1239	+	*/
1240	+	public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1241	+	protected abstract T realCompute() throws Throwable;
1242	+
1243	+	public final T compute() {
1244	+	try {
1245	+	return realCompute();
1246	+	} catch (Throwable t) {
1247	+	threadUnexpectedException(t);
1248	+	return null;
1249	+	}
1250	+	}
1251	+	}
1252	+
1253	+	/**
1254		* For use as RejectedExecutionHandler in constructors
1255		*/
1256	<	static class NoOpREHandler implements RejectedExecutionHandler{
1257	<	public void rejectedExecution(Runnable r, ThreadPoolExecutor executor){}
1256	>	public static class NoOpREHandler implements RejectedExecutionHandler {
1257	>	public void rejectedExecution(Runnable r,
1258	>	ThreadPoolExecutor executor) {}
1259	>	}
1260	>
1261	>	/**
1262	>	* A CyclicBarrier that uses timed await and fails with
1263	>	* AssertionFailedErrors instead of throwing checked exceptions.
1264	>	*/
1265	>	public class CheckedBarrier extends CyclicBarrier {
1266	>	public CheckedBarrier(int parties) { super(parties); }
1267	>
1268	>	public int await() {
1269	>	try {
1270	>	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1271	>	} catch (TimeoutException e) {
1272	>	throw new AssertionFailedError("timed out");
1273	>	} catch (Exception e) {
1274	>	AssertionFailedError afe =
1275	>	new AssertionFailedError("Unexpected exception: " + e);
1276	>	afe.initCause(e);
1277	>	throw afe;
1278	>	}
1279	>	}
1280	>	}
1281	>
1282	>	void checkEmpty(BlockingQueue q) {
1283	>	try {
1284	>	assertTrue(q.isEmpty());
1285	>	assertEquals(0, q.size());
1286	>	assertNull(q.peek());
1287	>	assertNull(q.poll());
1288	>	assertNull(q.poll(0, MILLISECONDS));
1289	>	assertEquals(q.toString(), "[]");
1290	>	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1291	>	assertFalse(q.iterator().hasNext());
1292	>	try {
1293	>	q.element();
1294	>	shouldThrow();
1295	>	} catch (NoSuchElementException success) {}
1296	>	try {
1297	>	q.iterator().next();
1298	>	shouldThrow();
1299	>	} catch (NoSuchElementException success) {}
1300	>	try {
1301	>	q.remove();
1302	>	shouldThrow();
1303	>	} catch (NoSuchElementException success) {}
1304	>	} catch (InterruptedException ie) {
1305	>	threadUnexpectedException(ie);
1306	>	}
1307	>	}
1308	>
1309	>	void assertSerialEquals(Object x, Object y) {
1310	>	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1311	>	}
1312	>
1313	>	void assertNotSerialEquals(Object x, Object y) {
1314	>	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1315	>	}
1316	>
1317	>	byte[] serialBytes(Object o) {
1318	>	try {
1319	>	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1320	>	ObjectOutputStream oos = new ObjectOutputStream(bos);
1321	>	oos.writeObject(o);
1322	>	oos.flush();
1323	>	oos.close();
1324	>	return bos.toByteArray();
1325	>	} catch (Throwable t) {
1326	>	threadUnexpectedException(t);
1327	>	return new byte[0];
1328	>	}
1329	>	}
1330	>
1331	>	@SuppressWarnings("unchecked")
1332	>	<T> T serialClone(T o) {
1333	>	try {
1334	>	ObjectInputStream ois = new ObjectInputStream
1335	>	(new ByteArrayInputStream(serialBytes(o)));
1336	>	T clone = (T) ois.readObject();
1337	>	assertSame(o.getClass(), clone.getClass());
1338	>	return clone;
1339	>	} catch (Throwable t) {
1340	>	threadUnexpectedException(t);
1341	>	return null;
1342	>	}
1343		}
536	–
537	–
1344		}

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