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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.7 by dl, Sat Oct 25 16:02:13 2003 UTC vs.
Revision 1.105 by dl, Thu Mar 21 19:06:54 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(ArrayBlockingQueueTest.class));
222	<	suite.addTest(new TestSuite(AtomicBooleanTest.class));
223	<	suite.addTest(new TestSuite(AtomicIntegerArrayTest.class));
224	<	suite.addTest(new TestSuite(AtomicIntegerFieldUpdaterTest.class));
225	<	suite.addTest(new TestSuite(AtomicIntegerTest.class));
226	<	suite.addTest(new TestSuite(AtomicLongArrayTest.class));
227	<	suite.addTest(new TestSuite(AtomicLongFieldUpdaterTest.class));
228	<	suite.addTest(new TestSuite(AtomicLongTest.class));
229	<	suite.addTest(new TestSuite(AtomicMarkableReferenceTest.class));
230	<	suite.addTest(new TestSuite(AtomicReferenceArrayTest.class));
231	<	suite.addTest(new TestSuite(AtomicReferenceFieldUpdaterTest.class));
232	<	suite.addTest(new TestSuite(AtomicReferenceTest.class));
233	<	suite.addTest(new TestSuite(AtomicStampedReferenceTest.class));
234	<	suite.addTest(new TestSuite(CancellableTaskTest.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(FairSemaphoreTest.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(PrivilegedFutureTaskTest.class));
252	<	suite.addTest(new TestSuite(ReentrantLockTest.class));
253	<	suite.addTest(new TestSuite(ReentrantReadWriteLockTest.class));
254	<	suite.addTest(new TestSuite(ScheduledExecutorTest.class));
255	<	suite.addTest(new TestSuite(SemaphoreTest.class));
256	<	suite.addTest(new TestSuite(SynchronousQueueTest.class));
257	<	suite.addTest(new TestSuite(SystemTest.class));
258	<	suite.addTest(new TestSuite(ThreadLocalTest.class));
259	<	suite.addTest(new TestSuite(ThreadPoolExecutorTest.class));
260	<	suite.addTest(new TestSuite(ThreadTest.class));
261	<	suite.addTest(new TestSuite(TimeUnitTest.class));
262	<
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	>	"CompletableFutureTest",
290	>	"ConcurrentHashMap8Test",
291	>	"CountedCompleterTest",
292	>	"DoubleAccumulatorTest",
293	>	"DoubleAdderTest",
294	>	"ForkJoinPool8Test",
295	>	"LongAccumulatorTest",
296	>	"LongAdderTest",
297	>	"StampedLockTest",
298	>	};
299	>	addNamedTestClasses(suite, java8TestClassNames);
300	>	}
301	>
302		return suite;
303		}
304
#	Line 151 | Line 310 | public class JSR166TestCase extends Test
310
311
312		/**
313	<	* Return the shortest timed delay. This could
314	<	* be reimplmented to use for example a Property.
315	<	*/
313	>	* Returns the shortest timed delay. This could
314	>	* be reimplemented to use for example a Property.
315	>	*/
316		protected long getShortDelay() {
317	<	return 100;
317	>	return 50;
318		}
319
161	–
320		/**
321	<	* Set delays as multiples of SHORT_DELAY.
321	>	* Sets delays as multiples of SHORT_DELAY.
322		*/
323	<	protected  void setDelays() {
323	>	protected void setDelays() {
324		SHORT_DELAY_MS = getShortDelay();
325	<	SMALL_DELAY_MS = SHORT_DELAY_MS * 5;
325	>	SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
326		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
327	<	LONG_DELAY_MS = SHORT_DELAY_MS * 50;
327	>	LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
328		}
329
330		/**
331	<	* Flag set true if any threadAssert methods fail
331	>	* Returns a timeout in milliseconds to be used in tests that
332	>	* verify that operations block or time out.
333		*/
334	<	volatile boolean threadFailed;
334	>	long timeoutMillis() {
335	>	return SHORT_DELAY_MS / 4;
336	>	}
337
338		/**
339	<	* Initialize test to indicate that no thread assertions have failed
339	>	* Returns a new Date instance representing a time delayMillis
340	>	* milliseconds in the future.
341		*/
342	<	public void setUp() {
342	>	Date delayedDate(long delayMillis) {
343	>	return new Date(System.currentTimeMillis() + delayMillis);
344	>	}
345	>
346	>	/**
347	>	* The first exception encountered if any threadAssertXXX method fails.
348	>	*/
349	>	private final AtomicReference<Throwable> threadFailure
350	>	= new AtomicReference<Throwable>(null);
351	>
352	>	/**
353	>	* Records an exception so that it can be rethrown later in the test
354	>	* harness thread, triggering a test case failure.  Only the first
355	>	* failure is recorded; subsequent calls to this method from within
356	>	* the same test have no effect.
357	>	*/
358	>	public void threadRecordFailure(Throwable t) {
359	>	threadFailure.compareAndSet(null, t);
360	>	}
361	>
362	>	public void setUp() {
363		setDelays();
182	–	threadFailed = false;
364		}
365
366		/**
367	<	* Trigger test case failure if any thread assertions have failed
367	>	* Extra checks that get done for all test cases.
368	>	*
369	>	* Triggers test case failure if any thread assertions have failed,
370	>	* by rethrowing, in the test harness thread, any exception recorded
371	>	* earlier by threadRecordFailure.
372	>	*
373	>	* Triggers test case failure if interrupt status is set in the main thread.
374	>	*/
375	>	public void tearDown() throws Exception {
376	>	Throwable t = threadFailure.getAndSet(null);
377	>	if (t != null) {
378	>	if (t instanceof Error)
379	>	throw (Error) t;
380	>	else if (t instanceof RuntimeException)
381	>	throw (RuntimeException) t;
382	>	else if (t instanceof Exception)
383	>	throw (Exception) t;
384	>	else {
385	>	AssertionFailedError afe =
386	>	new AssertionFailedError(t.toString());
387	>	afe.initCause(t);
388	>	throw afe;
389	>	}
390	>	}
391	>
392	>	if (Thread.interrupted())
393	>	throw new AssertionFailedError("interrupt status set in main thread");
394	>
395	>	checkForkJoinPoolThreadLeaks();
396	>	}
397	>
398	>	/**
399	>	* Find missing try { ... } finally { joinPool(e); }
400		*/
401	<	public void tearDown() {
402	<	assertFalse(threadFailed);
401	>	void checkForkJoinPoolThreadLeaks() throws InterruptedException {
402	>	Thread[] survivors = new Thread[5];
403	>	int count = Thread.enumerate(survivors);
404	>	for (int i = 0; i < count; i++) {
405	>	Thread thread = survivors[i];
406	>	String name = thread.getName();
407	>	if (name.startsWith("ForkJoinPool-")) {
408	>	// give thread some time to terminate
409	>	thread.join(LONG_DELAY_MS);
410	>	if (!thread.isAlive()) continue;
411	>	thread.stop();
412	>	throw new AssertionFailedError
413	>	(String.format("Found leaked ForkJoinPool thread test=%s thread=%s%n",
414	>	toString(), name));
415	>	}
416	>	}
417		}
418
419		/**
420	<	* Fail, also setting status to indicate current testcase should fail
421	<	*/
420	>	* Just like fail(reason), but additionally recording (using
421	>	* threadRecordFailure) any AssertionFailedError thrown, so that
422	>	* the current testcase will fail.
423	>	*/
424		public void threadFail(String reason) {
425	<	threadFailed = true;
426	<	fail(reason);
425	>	try {
426	>	fail(reason);
427	>	} catch (AssertionFailedError t) {
428	>	threadRecordFailure(t);
429	>	fail(reason);
430	>	}
431		}
432
433		/**
434	<	* If expression not true, set status to indicate current testcase
435	<	* should fail
436	<	*/
434	>	* Just like assertTrue(b), but additionally recording (using
435	>	* threadRecordFailure) any AssertionFailedError thrown, so that
436	>	* the current testcase will fail.
437	>	*/
438		public void threadAssertTrue(boolean b) {
439	<	if (!b) {
206	<	threadFailed = true;
439	>	try {
440		assertTrue(b);
441	+	} catch (AssertionFailedError t) {
442	+	threadRecordFailure(t);
443	+	throw t;
444		}
445		}
446
447		/**
448	<	* If expression not false, set status to indicate current testcase
449	<	* should fail
450	<	*/
448	>	* Just like assertFalse(b), but additionally recording (using
449	>	* threadRecordFailure) any AssertionFailedError thrown, so that
450	>	* the current testcase will fail.
451	>	*/
452		public void threadAssertFalse(boolean b) {
453	<	if (b) {
217	<	threadFailed = true;
453	>	try {
454		assertFalse(b);
455	+	} catch (AssertionFailedError t) {
456	+	threadRecordFailure(t);
457	+	throw t;
458		}
459		}
460
461		/**
462	<	* If argument not null, set status to indicate current testcase
463	<	* should fail
464	<	*/
462	>	* Just like assertNull(x), but additionally recording (using
463	>	* threadRecordFailure) any AssertionFailedError thrown, so that
464	>	* the current testcase will fail.
465	>	*/
466		public void threadAssertNull(Object x) {
467	<	if (x != null) {
228	<	threadFailed = true;
467	>	try {
468		assertNull(x);
469	+	} catch (AssertionFailedError t) {
470	+	threadRecordFailure(t);
471	+	throw t;
472		}
473		}
474
475		/**
476	<	* If arguments not equal, set status to indicate current testcase
477	<	* should fail
478	<	*/
476	>	* Just like assertEquals(x, y), but additionally recording (using
477	>	* threadRecordFailure) any AssertionFailedError thrown, so that
478	>	* the current testcase will fail.
479	>	*/
480		public void threadAssertEquals(long x, long y) {
481	<	if (x != y) {
239	<	threadFailed = true;
481	>	try {
482		assertEquals(x, y);
483	+	} catch (AssertionFailedError t) {
484	+	threadRecordFailure(t);
485	+	throw t;
486		}
487		}
488
489		/**
490	<	* If arguments not equal, set status to indicate current testcase
491	<	* should fail
492	<	*/
490	>	* Just like assertEquals(x, y), but additionally recording (using
491	>	* threadRecordFailure) any AssertionFailedError thrown, so that
492	>	* the current testcase will fail.
493	>	*/
494		public void threadAssertEquals(Object x, Object y) {
495	<	if (x != y && (x == null || !x.equals(y))) {
250	<	threadFailed = true;
495	>	try {
496		assertEquals(x, y);
497	+	} catch (AssertionFailedError t) {
498	+	threadRecordFailure(t);
499	+	throw t;
500	+	} catch (Throwable t) {
501	+	threadUnexpectedException(t);
502		}
503		}
504
505		/**
506	<	* threadFail with message "should throw exception"
507	<	*/
506	>	* Just like assertSame(x, y), but additionally recording (using
507	>	* threadRecordFailure) any AssertionFailedError thrown, so that
508	>	* the current testcase will fail.
509	>	*/
510	>	public void threadAssertSame(Object x, Object y) {
511	>	try {
512	>	assertSame(x, y);
513	>	} catch (AssertionFailedError t) {
514	>	threadRecordFailure(t);
515	>	throw t;
516	>	}
517	>	}
518	>
519	>	/**
520	>	* Calls threadFail with message "should throw exception".
521	>	*/
522		public void threadShouldThrow() {
523	<	threadFailed = true;
524	<	fail("should throw exception");
523	>	threadFail("should throw exception");
524	>	}
525	>
526	>	/**
527	>	* Calls threadFail with message "should throw" + exceptionName.
528	>	*/
529	>	public void threadShouldThrow(String exceptionName) {
530	>	threadFail("should throw " + exceptionName);
531		}
532
533		/**
534	<	* threadFail with message "Unexpected exception"
534	>	* Records the given exception using {@link #threadRecordFailure},
535	>	* then rethrows the exception, wrapping it in an
536	>	* AssertionFailedError if necessary.
537		*/
538	<	public void threadUnexpectedException() {
539	<	threadFailed = true;
540	<	fail("Unexpected exception");
538	>	public void threadUnexpectedException(Throwable t) {
539	>	threadRecordFailure(t);
540	>	t.printStackTrace();
541	>	if (t instanceof RuntimeException)
542	>	throw (RuntimeException) t;
543	>	else if (t instanceof Error)
544	>	throw (Error) t;
545	>	else {
546	>	AssertionFailedError afe =
547	>	new AssertionFailedError("unexpected exception: " + t);
548	>	afe.initCause(t);
549	>	throw afe;
550	>	}
551		}
552
553	+	/**
554	+	* Delays, via Thread.sleep, for the given millisecond delay, but
555	+	* if the sleep is shorter than specified, may re-sleep or yield
556	+	* until time elapses.
557	+	*/
558	+	static void delay(long millis) throws InterruptedException {
559	+	long startTime = System.nanoTime();
560	+	long ns = millis * 1000 * 1000;
561	+	for (;;) {
562	+	if (millis > 0L)
563	+	Thread.sleep(millis);
564	+	else // too short to sleep
565	+	Thread.yield();
566	+	long d = ns - (System.nanoTime() - startTime);
567	+	if (d > 0L)
568	+	millis = d / (1000 * 1000);
569	+	else
570	+	break;
571	+	}
572	+	}
573
574		/**
575	<	* Wait out termination of a thread pool or fail doing so
575	>	* Waits out termination of a thread pool or fails doing so.
576		*/
577	<	public void joinPool(ExecutorService exec) {
577	>	void joinPool(ExecutorService exec) {
578		try {
579		exec.shutdown();
580	<	assertTrue(exec.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
581	<	} catch(InterruptedException ie) {
582	<	fail("Unexpected exception");
580	>	assertTrue("ExecutorService did not terminate in a timely manner",
581	>	exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS));
582	>	} catch (SecurityException ok) {
583	>	// Allowed in case test doesn't have privs
584	>	} catch (InterruptedException ie) {
585	>	fail("Unexpected InterruptedException");
586	>	}
587	>	}
588	>
589	>	/**
590	>	* A debugging tool to print all stack traces, as jstack does.
591	>	*/
592	>	static void printAllStackTraces() {
593	>	for (ThreadInfo info :
594	>	ManagementFactory.getThreadMXBean()
595	>	.dumpAllThreads(true, true))
596	>	System.err.print(info);
597	>	}
598	>
599	>	/**
600	>	* Checks that thread does not terminate within the default
601	>	* millisecond delay of {@code timeoutMillis()}.
602	>	*/
603	>	void assertThreadStaysAlive(Thread thread) {
604	>	assertThreadStaysAlive(thread, timeoutMillis());
605	>	}
606	>
607	>	/**
608	>	* Checks that thread does not terminate within the given millisecond delay.
609	>	*/
610	>	void assertThreadStaysAlive(Thread thread, long millis) {
611	>	try {
612	>	// No need to optimize the failing case via Thread.join.
613	>	delay(millis);
614	>	assertTrue(thread.isAlive());
615	>	} catch (InterruptedException ie) {
616	>	fail("Unexpected InterruptedException");
617	>	}
618	>	}
619	>
620	>	/**
621	>	* Checks that the threads do not terminate within the default
622	>	* millisecond delay of {@code timeoutMillis()}.
623	>	*/
624	>	void assertThreadsStayAlive(Thread... threads) {
625	>	assertThreadsStayAlive(timeoutMillis(), threads);
626	>	}
627	>
628	>	/**
629	>	* Checks that the threads do not terminate within the given millisecond delay.
630	>	*/
631	>	void assertThreadsStayAlive(long millis, Thread... threads) {
632	>	try {
633	>	// No need to optimize the failing case via Thread.join.
634	>	delay(millis);
635	>	for (Thread thread : threads)
636	>	assertTrue(thread.isAlive());
637	>	} catch (InterruptedException ie) {
638	>	fail("Unexpected InterruptedException");
639		}
640		}
641
642	+	/**
643	+	* Checks that future.get times out, with the default timeout of
644	+	* {@code timeoutMillis()}.
645	+	*/
646	+	void assertFutureTimesOut(Future future) {
647	+	assertFutureTimesOut(future, timeoutMillis());
648	+	}
649	+
650	+	/**
651	+	* Checks that future.get times out, with the given millisecond timeout.
652	+	*/
653	+	void assertFutureTimesOut(Future future, long timeoutMillis) {
654	+	long startTime = System.nanoTime();
655	+	try {
656	+	future.get(timeoutMillis, MILLISECONDS);
657	+	shouldThrow();
658	+	} catch (TimeoutException success) {
659	+	} catch (Exception e) {
660	+	threadUnexpectedException(e);
661	+	} finally { future.cancel(true); }
662	+	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
663	+	}
664
665		/**
666	<	* fail with message "should throw exception"
667	<	*/
666	>	* Fails with message "should throw exception".
667	>	*/
668		public void shouldThrow() {
669		fail("Should throw exception");
670		}
671
672		/**
673	<	* fail with message "Unexpected exception"
673	>	* Fails with message "should throw " + exceptionName.
674		*/
675	<	public void unexpectedException() {
676	<	fail("Unexpected exception");
675	>	public void shouldThrow(String exceptionName) {
676	>	fail("Should throw " + exceptionName);
677		}
678
299	–
679		/**
680		* The number of elements to place in collections, arrays, etc.
681		*/
682	<	static final int SIZE = 20;
682	>	public static final int SIZE = 20;
683
684		// Some convenient Integer constants
685
686	<	static final Integer zero = new Integer(0);
687	<	static final Integer one = new Integer(1);
688	<	static final Integer two = new Integer(2);
689	<	static final Integer three  = new Integer(3);
690	<	static final Integer four  = new Integer(4);
691	<	static final Integer five  = new Integer(5);
692	<	static final Integer six = new Integer(6);
693	<	static final Integer seven = new Integer(7);
694	<	static final Integer eight = new Integer(8);
695	<	static final Integer nine = new Integer(9);
696	<	static final Integer m1  = new Integer(-1);
697	<	static final Integer m2  = new Integer(-2);
698	<	static final Integer m3  = new Integer(-3);
699	<	static final Integer m4 = new Integer(-4);
700	<	static final Integer m5 = new Integer(-5);
701	<	static final Integer m10 = new Integer(-10);
686	>	public static final Integer zero  = new Integer(0);
687	>	public static final Integer one   = new Integer(1);
688	>	public static final Integer two   = new Integer(2);
689	>	public static final Integer three = new Integer(3);
690	>	public static final Integer four  = new Integer(4);
691	>	public static final Integer five  = new Integer(5);
692	>	public static final Integer six   = new Integer(6);
693	>	public static final Integer seven = new Integer(7);
694	>	public static final Integer eight = new Integer(8);
695	>	public static final Integer nine  = new Integer(9);
696	>	public static final Integer m1  = new Integer(-1);
697	>	public static final Integer m2  = new Integer(-2);
698	>	public static final Integer m3  = new Integer(-3);
699	>	public static final Integer m4  = new Integer(-4);
700	>	public static final Integer m5  = new Integer(-5);
701	>	public static final Integer m6  = new Integer(-6);
702	>	public static final Integer m10 = new Integer(-10);
703	>
704	>
705	>	/**
706	>	* Runs Runnable r with a security policy that permits precisely
707	>	* the specified permissions.  If there is no current security
708	>	* manager, the runnable is run twice, both with and without a
709	>	* security manager.  We require that any security manager permit
710	>	* getPolicy/setPolicy.
711	>	*/
712	>	public void runWithPermissions(Runnable r, Permission... permissions) {
713	>	SecurityManager sm = System.getSecurityManager();
714	>	if (sm == null) {
715	>	r.run();
716	>	}
717	>	runWithSecurityManagerWithPermissions(r, permissions);
718	>	}
719	>
720	>	/**
721	>	* Runs Runnable r with a security policy that permits precisely
722	>	* the specified permissions.  If there is no current security
723	>	* manager, a temporary one is set for the duration of the
724	>	* Runnable.  We require that any security manager permit
725	>	* getPolicy/setPolicy.
726	>	*/
727	>	public void runWithSecurityManagerWithPermissions(Runnable r,
728	>	Permission... permissions) {
729	>	SecurityManager sm = System.getSecurityManager();
730	>	if (sm == null) {
731	>	Policy savedPolicy = Policy.getPolicy();
732	>	try {
733	>	Policy.setPolicy(permissivePolicy());
734	>	System.setSecurityManager(new SecurityManager());
735	>	runWithSecurityManagerWithPermissions(r, permissions);
736	>	} finally {
737	>	System.setSecurityManager(null);
738	>	Policy.setPolicy(savedPolicy);
739	>	}
740	>	} else {
741	>	Policy savedPolicy = Policy.getPolicy();
742	>	AdjustablePolicy policy = new AdjustablePolicy(permissions);
743	>	Policy.setPolicy(policy);
744	>
745	>	try {
746	>	r.run();
747	>	} finally {
748	>	policy.addPermission(new SecurityPermission("setPolicy"));
749	>	Policy.setPolicy(savedPolicy);
750	>	}
751	>	}
752	>	}
753
754	+	/**
755	+	* Runs a runnable without any permissions.
756	+	*/
757	+	public void runWithoutPermissions(Runnable r) {
758	+	runWithPermissions(r);
759	+	}
760
761		/**
762		* A security policy where new permissions can be dynamically added
763		* or all cleared.
764		*/
765	<	static class AdjustablePolicy extends java.security.Policy {
765	>	public static class AdjustablePolicy extends java.security.Policy {
766		Permissions perms = new Permissions();
767	<	AdjustablePolicy() { }
767	>	AdjustablePolicy(Permission... permissions) {
768	>	for (Permission permission : permissions)
769	>	perms.add(permission);
770	>	}
771		void addPermission(Permission perm) { perms.add(perm); }
772		void clearPermissions() { perms = new Permissions(); }
773	<	public PermissionCollection getPermissions(CodeSource cs) {
774	<	return perms;
775	<	}
776	<	public PermissionCollection getPermissions(ProtectionDomain pd) {
777	<	return perms;
778	<	}
779	<	public boolean implies(ProtectionDomain pd, Permission p) {
780	<	return perms.implies(p);
781	<	}
782	<	public void refresh() {}
773	>	public PermissionCollection getPermissions(CodeSource cs) {
774	>	return perms;
775	>	}
776	>	public PermissionCollection getPermissions(ProtectionDomain pd) {
777	>	return perms;
778	>	}
779	>	public boolean implies(ProtectionDomain pd, Permission p) {
780	>	return perms.implies(p);
781	>	}
782	>	public void refresh() {}
783	>	public String toString() {
784	>	List<Permission> ps = new ArrayList<Permission>();
785	>	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
786	>	ps.add(e.nextElement());
787	>	return "AdjustablePolicy with permissions " + ps;
788	>	}
789		}
790
791	+	/**
792	+	* Returns a policy containing all the permissions we ever need.
793	+	*/
794	+	public static Policy permissivePolicy() {
795	+	return new AdjustablePolicy
796	+	// Permissions j.u.c. needs directly
797	+	(new RuntimePermission("modifyThread"),
798	+	new RuntimePermission("getClassLoader"),
799	+	new RuntimePermission("setContextClassLoader"),
800	+	// Permissions needed to change permissions!
801	+	new SecurityPermission("getPolicy"),
802	+	new SecurityPermission("setPolicy"),
803	+	new RuntimePermission("setSecurityManager"),
804	+	// Permissions needed by the junit test harness
805	+	new RuntimePermission("accessDeclaredMembers"),
806	+	new PropertyPermission("*", "read"),
807	+	new java.io.FilePermission("<<ALL FILES>>", "read"));
808	+	}
809
810	<	// Some convenient Runnable classes
810	>	/**
811	>	* Sleeps until the given time has elapsed.
812	>	* Throws AssertionFailedError if interrupted.
813	>	*/
814	>	void sleep(long millis) {
815	>	try {
816	>	delay(millis);
817	>	} catch (InterruptedException ie) {
818	>	AssertionFailedError afe =
819	>	new AssertionFailedError("Unexpected InterruptedException");
820	>	afe.initCause(ie);
821	>	throw afe;
822	>	}
823	>	}
824
825	<	static class NoOpRunnable implements Runnable {
826	<	public void run() {}
825	>	/**
826	>	* Spin-waits up to the specified number of milliseconds for the given
827	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
828	>	*/
829	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
830	>	long startTime = System.nanoTime();
831	>	for (;;) {
832	>	Thread.State s = thread.getState();
833	>	if (s == Thread.State.BLOCKED ||
834	>	s == Thread.State.WAITING ||
835	>	s == Thread.State.TIMED_WAITING)
836	>	return;
837	>	else if (s == Thread.State.TERMINATED)
838	>	fail("Unexpected thread termination");
839	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
840	>	threadAssertTrue(thread.isAlive());
841	>	return;
842	>	}
843	>	Thread.yield();
844	>	}
845		}
846
847	<	static class NoOpCallable implements Callable {
848	<	public Object call() { return Boolean.TRUE; }
847	>	/**
848	>	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
849	>	* state: BLOCKED, WAITING, or TIMED_WAITING.
850	>	*/
851	>	void waitForThreadToEnterWaitState(Thread thread) {
852	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
853		}
854
855	<	class ShortRunnable implements Runnable {
856	<	public void run() {
857	<	try {
858	<	Thread.sleep(SHORT_DELAY_MS);
859	<	}
860	<	catch(Exception e) {
861	<	threadUnexpectedException();
855	>	/**
856	>	* Returns the number of milliseconds since time given by
857	>	* startNanoTime, which must have been previously returned from a
858	>	* call to {@link System.nanoTime()}.
859	>	*/
860	>	long millisElapsedSince(long startNanoTime) {
861	>	return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
862	>	}
863	>
864	>	/**
865	>	* Returns a new started daemon Thread running the given runnable.
866	>	*/
867	>	Thread newStartedThread(Runnable runnable) {
868	>	Thread t = new Thread(runnable);
869	>	t.setDaemon(true);
870	>	t.start();
871	>	return t;
872	>	}
873	>
874	>	/**
875	>	* Waits for the specified time (in milliseconds) for the thread
876	>	* to terminate (using {@link Thread#join(long)}), else interrupts
877	>	* the thread (in the hope that it may terminate later) and fails.
878	>	*/
879	>	void awaitTermination(Thread t, long timeoutMillis) {
880	>	try {
881	>	t.join(timeoutMillis);
882	>	} catch (InterruptedException ie) {
883	>	threadUnexpectedException(ie);
884	>	} finally {
885	>	if (t.getState() != Thread.State.TERMINATED) {
886	>	t.interrupt();
887	>	fail("Test timed out");
888		}
889		}
890		}
891
892	<	class ShortInterruptedRunnable implements Runnable {
893	<	public void run() {
892	>	/**
893	>	* Waits for LONG_DELAY_MS milliseconds for the thread to
894	>	* terminate (using {@link Thread#join(long)}), else interrupts
895	>	* the thread (in the hope that it may terminate later) and fails.
896	>	*/
897	>	void awaitTermination(Thread t) {
898	>	awaitTermination(t, LONG_DELAY_MS);
899	>	}
900	>
901	>	// Some convenient Runnable classes
902	>
903	>	public abstract class CheckedRunnable implements Runnable {
904	>	protected abstract void realRun() throws Throwable;
905	>
906	>	public final void run() {
907		try {
908	<	Thread.sleep(SHORT_DELAY_MS);
909	<	threadShouldThrow();
910	<	}
374	<	catch(InterruptedException success) {
908	>	realRun();
909	>	} catch (Throwable t) {
910	>	threadUnexpectedException(t);
911		}
912		}
913		}
914
915	<	class SmallRunnable implements Runnable {
916	<	public void run() {
915	>	public abstract class RunnableShouldThrow implements Runnable {
916	>	protected abstract void realRun() throws Throwable;
917	>
918	>	final Class<?> exceptionClass;
919	>
920	>	<T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) {
921	>	this.exceptionClass = exceptionClass;
922	>	}
923	>
924	>	public final void run() {
925		try {
926	<	Thread.sleep(SMALL_DELAY_MS);
927	<	}
928	<	catch(Exception e) {
929	<	threadUnexpectedException();
926	>	realRun();
927	>	threadShouldThrow(exceptionClass.getSimpleName());
928	>	} catch (Throwable t) {
929	>	if (! exceptionClass.isInstance(t))
930	>	threadUnexpectedException(t);
931		}
932		}
933		}
934
935	<	class SmallPossiblyInterruptedRunnable implements Runnable {
936	<	public void run() {
935	>	public abstract class ThreadShouldThrow extends Thread {
936	>	protected abstract void realRun() throws Throwable;
937	>
938	>	final Class<?> exceptionClass;
939	>
940	>	<T extends Throwable> ThreadShouldThrow(Class<T> exceptionClass) {
941	>	this.exceptionClass = exceptionClass;
942	>	}
943	>
944	>	public final void run() {
945		try {
946	<	Thread.sleep(SMALL_DELAY_MS);
947	<	}
948	<	catch(Exception e) {
946	>	realRun();
947	>	threadShouldThrow(exceptionClass.getSimpleName());
948	>	} catch (Throwable t) {
949	>	if (! exceptionClass.isInstance(t))
950	>	threadUnexpectedException(t);
951		}
952		}
953		}
954
955	<	class SmallCallable implements Callable {
956	<	public Object call() {
955	>	public abstract class CheckedInterruptedRunnable implements Runnable {
956	>	protected abstract void realRun() throws Throwable;
957	>
958	>	public final void run() {
959		try {
960	<	Thread.sleep(SMALL_DELAY_MS);
960	>	realRun();
961	>	threadShouldThrow("InterruptedException");
962	>	} catch (InterruptedException success) {
963	>	threadAssertFalse(Thread.interrupted());
964	>	} catch (Throwable t) {
965	>	threadUnexpectedException(t);
966		}
405	–	catch(Exception e) {
406	–	threadUnexpectedException();
407	–	}
408	–	return Boolean.TRUE;
967		}
968		}
969
970	<	class SmallInterruptedRunnable implements Runnable {
971	<	public void run() {
970	>	public abstract class CheckedCallable<T> implements Callable<T> {
971	>	protected abstract T realCall() throws Throwable;
972	>
973	>	public final T call() {
974		try {
975	<	Thread.sleep(SMALL_DELAY_MS);
976	<	threadShouldThrow();
977	<	}
978	<	catch(InterruptedException success) {
975	>	return realCall();
976	>	} catch (Throwable t) {
977	>	threadUnexpectedException(t);
978	>	return null;
979		}
980		}
981		}
982
983	+	public abstract class CheckedInterruptedCallable<T>
984	+	implements Callable<T> {
985	+	protected abstract T realCall() throws Throwable;
986
987	<	class MediumRunnable implements Runnable {
425	<	public void run() {
987	>	public final T call() {
988		try {
989	<	Thread.sleep(MEDIUM_DELAY_MS);
990	<	}
991	<	catch(Exception e) {
992	<	threadUnexpectedException();
989	>	T result = realCall();
990	>	threadShouldThrow("InterruptedException");
991	>	return result;
992	>	} catch (InterruptedException success) {
993	>	threadAssertFalse(Thread.interrupted());
994	>	} catch (Throwable t) {
995	>	threadUnexpectedException(t);
996		}
997	+	return null;
998		}
999		}
1000
1001	<	class MediumInterruptedRunnable implements Runnable {
1002	<	public void run() {
1001	>	public static class NoOpRunnable implements Runnable {
1002	>	public void run() {}
1003	>	}
1004	>
1005	>	public static class NoOpCallable implements Callable {
1006	>	public Object call() { return Boolean.TRUE; }
1007	>	}
1008	>
1009	>	public static final String TEST_STRING = "a test string";
1010	>
1011	>	public static class StringTask implements Callable<String> {
1012	>	public String call() { return TEST_STRING; }
1013	>	}
1014	>
1015	>	public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
1016	>	return new CheckedCallable<String>() {
1017	>	protected String realCall() {
1018	>	try {
1019	>	latch.await();
1020	>	} catch (InterruptedException quittingTime) {}
1021	>	return TEST_STRING;
1022	>	}};
1023	>	}
1024	>
1025	>	public Runnable awaiter(final CountDownLatch latch) {
1026	>	return new CheckedRunnable() {
1027	>	public void realRun() throws InterruptedException {
1028	>	await(latch);
1029	>	}};
1030	>	}
1031	>
1032	>	public void await(CountDownLatch latch) {
1033	>	try {
1034	>	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1035	>	} catch (Throwable t) {
1036	>	threadUnexpectedException(t);
1037	>	}
1038	>	}
1039	>
1040	>	public void await(Semaphore semaphore) {
1041	>	try {
1042	>	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1043	>	} catch (Throwable t) {
1044	>	threadUnexpectedException(t);
1045	>	}
1046	>	}
1047	>
1048	>	//     /**
1049	>	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1050	>	//      */
1051	>	//     public void await(AtomicBoolean flag) {
1052	>	//         await(flag, LONG_DELAY_MS);
1053	>	//     }
1054	>
1055	>	//     /**
1056	>	//      * Spin-waits up to the specified timeout until flag becomes true.
1057	>	//      */
1058	>	//     public void await(AtomicBoolean flag, long timeoutMillis) {
1059	>	//         long startTime = System.nanoTime();
1060	>	//         while (!flag.get()) {
1061	>	//             if (millisElapsedSince(startTime) > timeoutMillis)
1062	>	//                 throw new AssertionFailedError("timed out");
1063	>	//             Thread.yield();
1064	>	//         }
1065	>	//     }
1066	>
1067	>	public static class NPETask implements Callable<String> {
1068	>	public String call() { throw new NullPointerException(); }
1069	>	}
1070	>
1071	>	public static class CallableOne implements Callable<Integer> {
1072	>	public Integer call() { return one; }
1073	>	}
1074	>
1075	>	public class ShortRunnable extends CheckedRunnable {
1076	>	protected void realRun() throws Throwable {
1077	>	delay(SHORT_DELAY_MS);
1078	>	}
1079	>	}
1080	>
1081	>	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1082	>	protected void realRun() throws InterruptedException {
1083	>	delay(SHORT_DELAY_MS);
1084	>	}
1085	>	}
1086	>
1087	>	public class SmallRunnable extends CheckedRunnable {
1088	>	protected void realRun() throws Throwable {
1089	>	delay(SMALL_DELAY_MS);
1090	>	}
1091	>	}
1092	>
1093	>	public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1094	>	protected void realRun() {
1095		try {
1096	<	Thread.sleep(MEDIUM_DELAY_MS);
1097	<	threadShouldThrow();
440	<	}
441	<	catch(InterruptedException success) {
442	<	}
1096	>	delay(SMALL_DELAY_MS);
1097	>	} catch (InterruptedException ok) {}
1098		}
1099		}
1100
1101	<	class MediumPossiblyInterruptedRunnable implements Runnable {
1102	<	public void run() {
1101	>	public class SmallCallable extends CheckedCallable {
1102	>	protected Object realCall() throws InterruptedException {
1103	>	delay(SMALL_DELAY_MS);
1104	>	return Boolean.TRUE;
1105	>	}
1106	>	}
1107	>
1108	>	public class MediumRunnable extends CheckedRunnable {
1109	>	protected void realRun() throws Throwable {
1110	>	delay(MEDIUM_DELAY_MS);
1111	>	}
1112	>	}
1113	>
1114	>	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1115	>	protected void realRun() throws InterruptedException {
1116	>	delay(MEDIUM_DELAY_MS);
1117	>	}
1118	>	}
1119	>
1120	>	public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1121	>	return new CheckedRunnable() {
1122	>	protected void realRun() {
1123	>	try {
1124	>	delay(timeoutMillis);
1125	>	} catch (InterruptedException ok) {}
1126	>	}};
1127	>	}
1128	>
1129	>	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1130	>	protected void realRun() {
1131		try {
1132	<	Thread.sleep(MEDIUM_DELAY_MS);
1133	<	}
1134	<	catch(InterruptedException success) {
1135	<	}
1132	>	delay(MEDIUM_DELAY_MS);
1133	>	} catch (InterruptedException ok) {}
1134	>	}
1135	>	}
1136	>
1137	>	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1138	>	protected void realRun() {
1139	>	try {
1140	>	delay(LONG_DELAY_MS);
1141	>	} catch (InterruptedException ok) {}
1142		}
1143		}
1144
1145		/**
1146		* For use as ThreadFactory in constructors
1147		*/
1148	<	static class SimpleThreadFactory implements ThreadFactory{
1149	<	public Thread newThread(Runnable r){
1148	>	public static class SimpleThreadFactory implements ThreadFactory {
1149	>	public Thread newThread(Runnable r) {
1150		return new Thread(r);
1151	<	}
1151	>	}
1152	>	}
1153	>
1154	>	public interface TrackedRunnable extends Runnable {
1155	>	boolean isDone();
1156	>	}
1157	>
1158	>	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1159	>	return new TrackedRunnable() {
1160	>	private volatile boolean done = false;
1161	>	public boolean isDone() { return done; }
1162	>	public void run() {
1163	>	try {
1164	>	delay(timeoutMillis);
1165	>	done = true;
1166	>	} catch (InterruptedException ok) {}
1167	>	}
1168	>	};
1169		}
1170
1171	<	static class TrackedShortRunnable implements Runnable {
1172	<	volatile boolean done = false;
1171	>	public static class TrackedShortRunnable implements Runnable {
1172	>	public volatile boolean done = false;
1173		public void run() {
1174		try {
1175	<	Thread.sleep(SMALL_DELAY_MS);
1175	>	delay(SHORT_DELAY_MS);
1176		done = true;
1177	<	} catch(Exception e){
472	<	}
1177	>	} catch (InterruptedException ok) {}
1178		}
1179		}
1180
1181	<	static class TrackedMediumRunnable implements Runnable {
1182	<	volatile boolean done = false;
1181	>	public static class TrackedSmallRunnable implements Runnable {
1182	>	public volatile boolean done = false;
1183		public void run() {
1184		try {
1185	<	Thread.sleep(MEDIUM_DELAY_MS);
1185	>	delay(SMALL_DELAY_MS);
1186		done = true;
1187	<	} catch(Exception e){
483	<	}
1187	>	} catch (InterruptedException ok) {}
1188		}
1189		}
1190
1191	<	static class TrackedLongRunnable implements Runnable {
1192	<	volatile boolean done = false;
1191	>	public static class TrackedMediumRunnable implements Runnable {
1192	>	public volatile boolean done = false;
1193		public void run() {
1194		try {
1195	<	Thread.sleep(LONG_DELAY_MS);
1195	>	delay(MEDIUM_DELAY_MS);
1196		done = true;
1197	<	} catch(Exception e){
494	<	}
1197	>	} catch (InterruptedException ok) {}
1198		}
1199		}
1200
1201	<	static class TrackedNoOpRunnable implements Runnable {
1202	<	volatile boolean done = false;
1201	>	public static class TrackedLongRunnable implements Runnable {
1202	>	public volatile boolean done = false;
1203	>	public void run() {
1204	>	try {
1205	>	delay(LONG_DELAY_MS);
1206	>	done = true;
1207	>	} catch (InterruptedException ok) {}
1208	>	}
1209	>	}
1210	>
1211	>	public static class TrackedNoOpRunnable implements Runnable {
1212	>	public volatile boolean done = false;
1213		public void run() {
1214		done = true;
1215		}
1216		}
1217
1218	<	static class TrackedCallable implements Callable {
1219	<	volatile boolean done = false;
1218	>	public static class TrackedCallable implements Callable {
1219	>	public volatile boolean done = false;
1220		public Object call() {
1221		try {
1222	<	Thread.sleep(SMALL_DELAY_MS);
1222	>	delay(SMALL_DELAY_MS);
1223		done = true;
1224	<	} catch(Exception e){
512	<	}
1224	>	} catch (InterruptedException ok) {}
1225		return Boolean.TRUE;
1226		}
1227		}
1228
1229		/**
1230	+	* Analog of CheckedRunnable for RecursiveAction
1231	+	*/
1232	+	public abstract class CheckedRecursiveAction extends RecursiveAction {
1233	+	protected abstract void realCompute() throws Throwable;
1234	+
1235	+	public final void compute() {
1236	+	try {
1237	+	realCompute();
1238	+	} catch (Throwable t) {
1239	+	threadUnexpectedException(t);
1240	+	}
1241	+	}
1242	+	}
1243	+
1244	+	/**
1245	+	* Analog of CheckedCallable for RecursiveTask
1246	+	*/
1247	+	public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1248	+	protected abstract T realCompute() throws Throwable;
1249	+
1250	+	public final T compute() {
1251	+	try {
1252	+	return realCompute();
1253	+	} catch (Throwable t) {
1254	+	threadUnexpectedException(t);
1255	+	return null;
1256	+	}
1257	+	}
1258	+	}
1259	+
1260	+	/**
1261		* For use as RejectedExecutionHandler in constructors
1262		*/
1263	<	static class NoOpREHandler implements RejectedExecutionHandler{
1264	<	public void rejectedExecution(Runnable r, ThreadPoolExecutor executor){}
1263	>	public static class NoOpREHandler implements RejectedExecutionHandler {
1264	>	public void rejectedExecution(Runnable r,
1265	>	ThreadPoolExecutor executor) {}
1266	>	}
1267	>
1268	>	/**
1269	>	* A CyclicBarrier that uses timed await and fails with
1270	>	* AssertionFailedErrors instead of throwing checked exceptions.
1271	>	*/
1272	>	public class CheckedBarrier extends CyclicBarrier {
1273	>	public CheckedBarrier(int parties) { super(parties); }
1274	>
1275	>	public int await() {
1276	>	try {
1277	>	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1278	>	} catch (TimeoutException e) {
1279	>	throw new AssertionFailedError("timed out");
1280	>	} catch (Exception e) {
1281	>	AssertionFailedError afe =
1282	>	new AssertionFailedError("Unexpected exception: " + e);
1283	>	afe.initCause(e);
1284	>	throw afe;
1285	>	}
1286	>	}
1287	>	}
1288	>
1289	>	void checkEmpty(BlockingQueue q) {
1290	>	try {
1291	>	assertTrue(q.isEmpty());
1292	>	assertEquals(0, q.size());
1293	>	assertNull(q.peek());
1294	>	assertNull(q.poll());
1295	>	assertNull(q.poll(0, MILLISECONDS));
1296	>	assertEquals(q.toString(), "[]");
1297	>	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1298	>	assertFalse(q.iterator().hasNext());
1299	>	try {
1300	>	q.element();
1301	>	shouldThrow();
1302	>	} catch (NoSuchElementException success) {}
1303	>	try {
1304	>	q.iterator().next();
1305	>	shouldThrow();
1306	>	} catch (NoSuchElementException success) {}
1307	>	try {
1308	>	q.remove();
1309	>	shouldThrow();
1310	>	} catch (NoSuchElementException success) {}
1311	>	} catch (InterruptedException ie) {
1312	>	threadUnexpectedException(ie);
1313	>	}
1314	>	}
1315	>
1316	>	void assertSerialEquals(Object x, Object y) {
1317	>	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1318	>	}
1319	>
1320	>	void assertNotSerialEquals(Object x, Object y) {
1321	>	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1322	>	}
1323	>
1324	>	byte[] serialBytes(Object o) {
1325	>	try {
1326	>	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1327	>	ObjectOutputStream oos = new ObjectOutputStream(bos);
1328	>	oos.writeObject(o);
1329	>	oos.flush();
1330	>	oos.close();
1331	>	return bos.toByteArray();
1332	>	} catch (Throwable t) {
1333	>	threadUnexpectedException(t);
1334	>	return new byte[0];
1335	>	}
1336	>	}
1337	>
1338	>	@SuppressWarnings("unchecked")
1339	>	<T> T serialClone(T o) {
1340	>	try {
1341	>	ObjectInputStream ois = new ObjectInputStream
1342	>	(new ByteArrayInputStream(serialBytes(o)));
1343	>	T clone = (T) ois.readObject();
1344	>	assertSame(o.getClass(), clone.getClass());
1345	>	return clone;
1346	>	} catch (Throwable t) {
1347	>	threadUnexpectedException(t);
1348	>	return null;
1349	>	}
1350		}
523	–
524	–
1351		}

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