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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.10 by dl, Mon Dec 22 00:48:55 2003 UTC vs.
Revision 1.102 by jsr166, Wed Feb 6 19:55:06 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(FutureTaskTest.class));
245	<	suite.addTest(new TestSuite(LinkedBlockingQueueTest.class));
246	<	suite.addTest(new TestSuite(LinkedListTest.class));
247	<	suite.addTest(new TestSuite(LockSupportTest.class));
248	<	suite.addTest(new TestSuite(PriorityBlockingQueueTest.class));
249	<	suite.addTest(new TestSuite(PriorityQueueTest.class));
250	<	suite.addTest(new TestSuite(ReentrantLockTest.class));
251	<	suite.addTest(new TestSuite(ReentrantReadWriteLockTest.class));
252	<	suite.addTest(new TestSuite(ScheduledExecutorTest.class));
253	<	suite.addTest(new TestSuite(SemaphoreTest.class));
254	<	suite.addTest(new TestSuite(SynchronousQueueTest.class));
255	<	suite.addTest(new TestSuite(SystemTest.class));
256	<	suite.addTest(new TestSuite(ThreadLocalTest.class));
257	<	suite.addTest(new TestSuite(ThreadPoolExecutorTest.class));
258	<	suite.addTest(new TestSuite(ThreadTest.class));
259	<	suite.addTest(new TestSuite(TimeUnitTest.class));
260	<
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	>	"ForkJoinPool8Test",
291	>	"StampedLockTest",
292	>	};
293	>	addNamedTestClasses(suite, java8TestClassNames);
294	>	}
295	>
296		return suite;
297		}
298
#	Line 149 | Line 304 | public class JSR166TestCase extends Test
304
305
306		/**
307	<	* Return the shortest timed delay. This could
308	<	* be reimplmented to use for example a Property.
309	<	*/
307	>	* Returns the shortest timed delay. This could
308	>	* be reimplemented to use for example a Property.
309	>	*/
310		protected long getShortDelay() {
311	<	return 100;
311	>	return 50;
312		}
313
159	–
314		/**
315	<	* Set delays as multiples of SHORT_DELAY.
315	>	* Sets delays as multiples of SHORT_DELAY.
316		*/
317	<	protected  void setDelays() {
317	>	protected void setDelays() {
318		SHORT_DELAY_MS = getShortDelay();
319	<	SMALL_DELAY_MS = SHORT_DELAY_MS * 5;
319	>	SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
320		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
321	<	LONG_DELAY_MS = SHORT_DELAY_MS * 50;
321	>	LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
322	>	}
323	>
324	>	/**
325	>	* Returns a timeout in milliseconds to be used in tests that
326	>	* verify that operations block or time out.
327	>	*/
328	>	long timeoutMillis() {
329	>	return SHORT_DELAY_MS / 4;
330	>	}
331	>
332	>	/**
333	>	* Returns a new Date instance representing a time delayMillis
334	>	* milliseconds in the future.
335	>	*/
336	>	Date delayedDate(long delayMillis) {
337	>	return new Date(System.currentTimeMillis() + delayMillis);
338		}
339
340		/**
341	<	* Flag set true if any threadAssert methods fail
341	>	* The first exception encountered if any threadAssertXXX method fails.
342		*/
343	<	volatile boolean threadFailed;
343	>	private final AtomicReference<Throwable> threadFailure
344	>	= new AtomicReference<Throwable>(null);
345
346		/**
347	<	* Initialize test to indicate that no thread assertions have failed
347	>	* Records an exception so that it can be rethrown later in the test
348	>	* harness thread, triggering a test case failure.  Only the first
349	>	* failure is recorded; subsequent calls to this method from within
350	>	* the same test have no effect.
351		*/
352	<	public void setUp() {
352	>	public void threadRecordFailure(Throwable t) {
353	>	threadFailure.compareAndSet(null, t);
354	>	}
355	>
356	>	public void setUp() {
357		setDelays();
180	–	threadFailed = false;
358		}
359
360		/**
361	<	* Trigger test case failure if any thread assertions have failed
361	>	* Extra checks that get done for all test cases.
362	>	*
363	>	* Triggers test case failure if any thread assertions have failed,
364	>	* by rethrowing, in the test harness thread, any exception recorded
365	>	* earlier by threadRecordFailure.
366	>	*
367	>	* Triggers test case failure if interrupt status is set in the main thread.
368	>	*/
369	>	public void tearDown() throws Exception {
370	>	Throwable t = threadFailure.getAndSet(null);
371	>	if (t != null) {
372	>	if (t instanceof Error)
373	>	throw (Error) t;
374	>	else if (t instanceof RuntimeException)
375	>	throw (RuntimeException) t;
376	>	else if (t instanceof Exception)
377	>	throw (Exception) t;
378	>	else {
379	>	AssertionFailedError afe =
380	>	new AssertionFailedError(t.toString());
381	>	afe.initCause(t);
382	>	throw afe;
383	>	}
384	>	}
385	>
386	>	if (Thread.interrupted())
387	>	throw new AssertionFailedError("interrupt status set in main thread");
388	>
389	>	checkForkJoinPoolThreadLeaks();
390	>	}
391	>
392	>	/**
393	>	* Find missing try { ... } finally { joinPool(e); }
394		*/
395	<	public void tearDown() {
396	<	assertFalse(threadFailed);
395	>	void checkForkJoinPoolThreadLeaks() throws InterruptedException {
396	>	Thread[] survivors = new Thread[5];
397	>	int count = Thread.enumerate(survivors);
398	>	for (int i = 0; i < count; i++) {
399	>	Thread thread = survivors[i];
400	>	String name = thread.getName();
401	>	if (name.startsWith("ForkJoinPool-")) {
402	>	// give thread some time to terminate
403	>	thread.join(LONG_DELAY_MS);
404	>	if (!thread.isAlive()) continue;
405	>	thread.stop();
406	>	throw new AssertionFailedError
407	>	(String.format("Found leaked ForkJoinPool thread test=%s thread=%s%n",
408	>	toString(), name));
409	>	}
410	>	}
411		}
412
413		/**
414	<	* Fail, also setting status to indicate current testcase should fail
415	<	*/
414	>	* Just like fail(reason), but additionally recording (using
415	>	* threadRecordFailure) any AssertionFailedError thrown, so that
416	>	* the current testcase will fail.
417	>	*/
418		public void threadFail(String reason) {
419	<	threadFailed = true;
420	<	fail(reason);
419	>	try {
420	>	fail(reason);
421	>	} catch (AssertionFailedError t) {
422	>	threadRecordFailure(t);
423	>	fail(reason);
424	>	}
425		}
426
427		/**
428	<	* If expression not true, set status to indicate current testcase
429	<	* should fail
430	<	*/
428	>	* Just like assertTrue(b), but additionally recording (using
429	>	* threadRecordFailure) any AssertionFailedError thrown, so that
430	>	* the current testcase will fail.
431	>	*/
432		public void threadAssertTrue(boolean b) {
433	<	if (!b) {
204	<	threadFailed = true;
433	>	try {
434		assertTrue(b);
435	+	} catch (AssertionFailedError t) {
436	+	threadRecordFailure(t);
437	+	throw t;
438		}
439		}
440
441		/**
442	<	* If expression not false, set status to indicate current testcase
443	<	* should fail
444	<	*/
442	>	* Just like assertFalse(b), but additionally recording (using
443	>	* threadRecordFailure) any AssertionFailedError thrown, so that
444	>	* the current testcase will fail.
445	>	*/
446		public void threadAssertFalse(boolean b) {
447	<	if (b) {
215	<	threadFailed = true;
447	>	try {
448		assertFalse(b);
449	+	} catch (AssertionFailedError t) {
450	+	threadRecordFailure(t);
451	+	throw t;
452		}
453		}
454
455		/**
456	<	* If argument not null, set status to indicate current testcase
457	<	* should fail
458	<	*/
456	>	* Just like assertNull(x), but additionally recording (using
457	>	* threadRecordFailure) any AssertionFailedError thrown, so that
458	>	* the current testcase will fail.
459	>	*/
460		public void threadAssertNull(Object x) {
461	<	if (x != null) {
226	<	threadFailed = true;
461	>	try {
462		assertNull(x);
463	+	} catch (AssertionFailedError t) {
464	+	threadRecordFailure(t);
465	+	throw t;
466		}
467		}
468
469		/**
470	<	* If arguments not equal, set status to indicate current testcase
471	<	* should fail
472	<	*/
470	>	* Just like assertEquals(x, y), but additionally recording (using
471	>	* threadRecordFailure) any AssertionFailedError thrown, so that
472	>	* the current testcase will fail.
473	>	*/
474		public void threadAssertEquals(long x, long y) {
475	<	if (x != y) {
237	<	threadFailed = true;
475	>	try {
476		assertEquals(x, y);
477	+	} catch (AssertionFailedError t) {
478	+	threadRecordFailure(t);
479	+	throw t;
480		}
481		}
482
483		/**
484	<	* If arguments not equal, set status to indicate current testcase
485	<	* should fail
486	<	*/
484	>	* Just like assertEquals(x, y), but additionally recording (using
485	>	* threadRecordFailure) any AssertionFailedError thrown, so that
486	>	* the current testcase will fail.
487	>	*/
488		public void threadAssertEquals(Object x, Object y) {
489	<	if (x != y && (x == null || !x.equals(y))) {
248	<	threadFailed = true;
489	>	try {
490		assertEquals(x, y);
491	+	} catch (AssertionFailedError t) {
492	+	threadRecordFailure(t);
493	+	throw t;
494	+	} catch (Throwable t) {
495	+	threadUnexpectedException(t);
496	+	}
497	+	}
498	+
499	+	/**
500	+	* Just like assertSame(x, y), but additionally recording (using
501	+	* threadRecordFailure) any AssertionFailedError thrown, so that
502	+	* the current testcase will fail.
503	+	*/
504	+	public void threadAssertSame(Object x, Object y) {
505	+	try {
506	+	assertSame(x, y);
507	+	} catch (AssertionFailedError t) {
508	+	threadRecordFailure(t);
509	+	throw t;
510		}
511		}
512
513		/**
514	<	* threadFail with message "should throw exception"
515	<	*/
514	>	* Calls threadFail with message "should throw exception".
515	>	*/
516		public void threadShouldThrow() {
517	<	threadFailed = true;
258	<	fail("should throw exception");
517	>	threadFail("should throw exception");
518		}
519
520		/**
521	<	* threadFail with message "Unexpected exception"
521	>	* Calls threadFail with message "should throw" + exceptionName.
522		*/
523	<	public void threadUnexpectedException() {
524	<	threadFailed = true;
266	<	fail("Unexpected exception");
523	>	public void threadShouldThrow(String exceptionName) {
524	>	threadFail("should throw " + exceptionName);
525		}
526
527	+	/**
528	+	* Records the given exception using {@link #threadRecordFailure},
529	+	* then rethrows the exception, wrapping it in an
530	+	* AssertionFailedError if necessary.
531	+	*/
532	+	public void threadUnexpectedException(Throwable t) {
533	+	threadRecordFailure(t);
534	+	t.printStackTrace();
535	+	if (t instanceof RuntimeException)
536	+	throw (RuntimeException) t;
537	+	else if (t instanceof Error)
538	+	throw (Error) t;
539	+	else {
540	+	AssertionFailedError afe =
541	+	new AssertionFailedError("unexpected exception: " + t);
542	+	afe.initCause(t);
543	+	throw afe;
544	+	}
545	+	}
546	+
547	+	/**
548	+	* Delays, via Thread.sleep, for the given millisecond delay, but
549	+	* if the sleep is shorter than specified, may re-sleep or yield
550	+	* until time elapses.
551	+	*/
552	+	static void delay(long millis) throws InterruptedException {
553	+	long startTime = System.nanoTime();
554	+	long ns = millis * 1000 * 1000;
555	+	for (;;) {
556	+	if (millis > 0L)
557	+	Thread.sleep(millis);
558	+	else // too short to sleep
559	+	Thread.yield();
560	+	long d = ns - (System.nanoTime() - startTime);
561	+	if (d > 0L)
562	+	millis = d / (1000 * 1000);
563	+	else
564	+	break;
565	+	}
566	+	}
567
568		/**
569	<	* Wait out termination of a thread pool or fail doing so
569	>	* Waits out termination of a thread pool or fails doing so.
570		*/
571	<	public void joinPool(ExecutorService exec) {
571	>	void joinPool(ExecutorService exec) {
572		try {
573		exec.shutdown();
574	<	assertTrue(exec.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
575	<	} catch(InterruptedException ie) {
576	<	fail("Unexpected exception");
574	>	assertTrue("ExecutorService did not terminate in a timely manner",
575	>	exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS));
576	>	} catch (SecurityException ok) {
577	>	// Allowed in case test doesn't have privs
578	>	} catch (InterruptedException ie) {
579	>	fail("Unexpected InterruptedException");
580	>	}
581	>	}
582	>
583	>	/**
584	>	* A debugging tool to print all stack traces, as jstack does.
585	>	*/
586	>	static void printAllStackTraces() {
587	>	for (ThreadInfo info :
588	>	ManagementFactory.getThreadMXBean()
589	>	.dumpAllThreads(true, true))
590	>	System.err.print(info);
591	>	}
592	>
593	>	/**
594	>	* Checks that thread does not terminate within the default
595	>	* millisecond delay of {@code timeoutMillis()}.
596	>	*/
597	>	void assertThreadStaysAlive(Thread thread) {
598	>	assertThreadStaysAlive(thread, timeoutMillis());
599	>	}
600	>
601	>	/**
602	>	* Checks that thread does not terminate within the given millisecond delay.
603	>	*/
604	>	void assertThreadStaysAlive(Thread thread, long millis) {
605	>	try {
606	>	// No need to optimize the failing case via Thread.join.
607	>	delay(millis);
608	>	assertTrue(thread.isAlive());
609	>	} catch (InterruptedException ie) {
610	>	fail("Unexpected InterruptedException");
611	>	}
612	>	}
613	>
614	>	/**
615	>	* Checks that the threads do not terminate within the default
616	>	* millisecond delay of {@code timeoutMillis()}.
617	>	*/
618	>	void assertThreadsStayAlive(Thread... threads) {
619	>	assertThreadsStayAlive(timeoutMillis(), threads);
620	>	}
621	>
622	>	/**
623	>	* Checks that the threads do not terminate within the given millisecond delay.
624	>	*/
625	>	void assertThreadsStayAlive(long millis, Thread... threads) {
626	>	try {
627	>	// No need to optimize the failing case via Thread.join.
628	>	delay(millis);
629	>	for (Thread thread : threads)
630	>	assertTrue(thread.isAlive());
631	>	} catch (InterruptedException ie) {
632	>	fail("Unexpected InterruptedException");
633		}
634		}
635
636	+	/**
637	+	* Checks that future.get times out, with the default timeout of
638	+	* {@code timeoutMillis()}.
639	+	*/
640	+	void assertFutureTimesOut(Future future) {
641	+	assertFutureTimesOut(future, timeoutMillis());
642	+	}
643	+
644	+	/**
645	+	* Checks that future.get times out, with the given millisecond timeout.
646	+	*/
647	+	void assertFutureTimesOut(Future future, long timeoutMillis) {
648	+	long startTime = System.nanoTime();
649	+	try {
650	+	future.get(timeoutMillis, MILLISECONDS);
651	+	shouldThrow();
652	+	} catch (TimeoutException success) {
653	+	} catch (Exception e) {
654	+	threadUnexpectedException(e);
655	+	} finally { future.cancel(true); }
656	+	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
657	+	}
658
659		/**
660	<	* fail with message "should throw exception"
661	<	*/
660	>	* Fails with message "should throw exception".
661	>	*/
662		public void shouldThrow() {
663		fail("Should throw exception");
664		}
665
666		/**
667	<	* fail with message "Unexpected exception"
667	>	* Fails with message "should throw " + exceptionName.
668		*/
669	<	public void unexpectedException() {
670	<	fail("Unexpected exception");
669	>	public void shouldThrow(String exceptionName) {
670	>	fail("Should throw " + exceptionName);
671		}
672
297	–
673		/**
674		* The number of elements to place in collections, arrays, etc.
675		*/
676	<	static final int SIZE = 20;
676	>	public static final int SIZE = 20;
677
678		// Some convenient Integer constants
679
680	<	static final Integer zero = new Integer(0);
681	<	static final Integer one = new Integer(1);
682	<	static final Integer two = new Integer(2);
683	<	static final Integer three  = new Integer(3);
684	<	static final Integer four  = new Integer(4);
685	<	static final Integer five  = new Integer(5);
686	<	static final Integer six = new Integer(6);
687	<	static final Integer seven = new Integer(7);
688	<	static final Integer eight = new Integer(8);
689	<	static final Integer nine = new Integer(9);
690	<	static final Integer m1  = new Integer(-1);
691	<	static final Integer m2  = new Integer(-2);
692	<	static final Integer m3  = new Integer(-3);
693	<	static final Integer m4 = new Integer(-4);
694	<	static final Integer m5 = new Integer(-5);
695	<	static final Integer m10 = new Integer(-10);
680	>	public static final Integer zero  = new Integer(0);
681	>	public static final Integer one   = new Integer(1);
682	>	public static final Integer two   = new Integer(2);
683	>	public static final Integer three = new Integer(3);
684	>	public static final Integer four  = new Integer(4);
685	>	public static final Integer five  = new Integer(5);
686	>	public static final Integer six   = new Integer(6);
687	>	public static final Integer seven = new Integer(7);
688	>	public static final Integer eight = new Integer(8);
689	>	public static final Integer nine  = new Integer(9);
690	>	public static final Integer m1  = new Integer(-1);
691	>	public static final Integer m2  = new Integer(-2);
692	>	public static final Integer m3  = new Integer(-3);
693	>	public static final Integer m4  = new Integer(-4);
694	>	public static final Integer m5  = new Integer(-5);
695	>	public static final Integer m6  = new Integer(-6);
696	>	public static final Integer m10 = new Integer(-10);
697	>
698	>
699	>	/**
700	>	* Runs Runnable r with a security policy that permits precisely
701	>	* the specified permissions.  If there is no current security
702	>	* manager, the runnable is run twice, both with and without a
703	>	* security manager.  We require that any security manager permit
704	>	* getPolicy/setPolicy.
705	>	*/
706	>	public void runWithPermissions(Runnable r, Permission... permissions) {
707	>	SecurityManager sm = System.getSecurityManager();
708	>	if (sm == null) {
709	>	r.run();
710	>	}
711	>	runWithSecurityManagerWithPermissions(r, permissions);
712	>	}
713	>
714	>	/**
715	>	* Runs Runnable r with a security policy that permits precisely
716	>	* the specified permissions.  If there is no current security
717	>	* manager, a temporary one is set for the duration of the
718	>	* Runnable.  We require that any security manager permit
719	>	* getPolicy/setPolicy.
720	>	*/
721	>	public void runWithSecurityManagerWithPermissions(Runnable r,
722	>	Permission... permissions) {
723	>	SecurityManager sm = System.getSecurityManager();
724	>	if (sm == null) {
725	>	Policy savedPolicy = Policy.getPolicy();
726	>	try {
727	>	Policy.setPolicy(permissivePolicy());
728	>	System.setSecurityManager(new SecurityManager());
729	>	runWithSecurityManagerWithPermissions(r, permissions);
730	>	} finally {
731	>	System.setSecurityManager(null);
732	>	Policy.setPolicy(savedPolicy);
733	>	}
734	>	} else {
735	>	Policy savedPolicy = Policy.getPolicy();
736	>	AdjustablePolicy policy = new AdjustablePolicy(permissions);
737	>	Policy.setPolicy(policy);
738	>
739	>	try {
740	>	r.run();
741	>	} finally {
742	>	policy.addPermission(new SecurityPermission("setPolicy"));
743	>	Policy.setPolicy(savedPolicy);
744	>	}
745	>	}
746	>	}
747
748	+	/**
749	+	* Runs a runnable without any permissions.
750	+	*/
751	+	public void runWithoutPermissions(Runnable r) {
752	+	runWithPermissions(r);
753	+	}
754
755		/**
756		* A security policy where new permissions can be dynamically added
757		* or all cleared.
758		*/
759	<	static class AdjustablePolicy extends java.security.Policy {
759	>	public static class AdjustablePolicy extends java.security.Policy {
760		Permissions perms = new Permissions();
761	<	AdjustablePolicy() { }
761	>	AdjustablePolicy(Permission... permissions) {
762	>	for (Permission permission : permissions)
763	>	perms.add(permission);
764	>	}
765		void addPermission(Permission perm) { perms.add(perm); }
766		void clearPermissions() { perms = new Permissions(); }
767	<	public PermissionCollection getPermissions(CodeSource cs) {
768	<	return perms;
769	<	}
770	<	public PermissionCollection getPermissions(ProtectionDomain pd) {
771	<	return perms;
772	<	}
773	<	public boolean implies(ProtectionDomain pd, Permission p) {
774	<	return perms.implies(p);
775	<	}
776	<	public void refresh() {}
767	>	public PermissionCollection getPermissions(CodeSource cs) {
768	>	return perms;
769	>	}
770	>	public PermissionCollection getPermissions(ProtectionDomain pd) {
771	>	return perms;
772	>	}
773	>	public boolean implies(ProtectionDomain pd, Permission p) {
774	>	return perms.implies(p);
775	>	}
776	>	public void refresh() {}
777	>	public String toString() {
778	>	List<Permission> ps = new ArrayList<Permission>();
779	>	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
780	>	ps.add(e.nextElement());
781	>	return "AdjustablePolicy with permissions " + ps;
782	>	}
783		}
784
785	+	/**
786	+	* Returns a policy containing all the permissions we ever need.
787	+	*/
788	+	public static Policy permissivePolicy() {
789	+	return new AdjustablePolicy
790	+	// Permissions j.u.c. needs directly
791	+	(new RuntimePermission("modifyThread"),
792	+	new RuntimePermission("getClassLoader"),
793	+	new RuntimePermission("setContextClassLoader"),
794	+	// Permissions needed to change permissions!
795	+	new SecurityPermission("getPolicy"),
796	+	new SecurityPermission("setPolicy"),
797	+	new RuntimePermission("setSecurityManager"),
798	+	// Permissions needed by the junit test harness
799	+	new RuntimePermission("accessDeclaredMembers"),
800	+	new PropertyPermission("*", "read"),
801	+	new java.io.FilePermission("<<ALL FILES>>", "read"));
802	+	}
803
804	<	// Some convenient Runnable classes
804	>	/**
805	>	* Sleeps until the given time has elapsed.
806	>	* Throws AssertionFailedError if interrupted.
807	>	*/
808	>	void sleep(long millis) {
809	>	try {
810	>	delay(millis);
811	>	} catch (InterruptedException ie) {
812	>	AssertionFailedError afe =
813	>	new AssertionFailedError("Unexpected InterruptedException");
814	>	afe.initCause(ie);
815	>	throw afe;
816	>	}
817	>	}
818
819	<	static class NoOpRunnable implements Runnable {
820	<	public void run() {}
819	>	/**
820	>	* Spin-waits up to the specified number of milliseconds for the given
821	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
822	>	*/
823	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
824	>	long startTime = System.nanoTime();
825	>	for (;;) {
826	>	Thread.State s = thread.getState();
827	>	if (s == Thread.State.BLOCKED ||
828	>	s == Thread.State.WAITING ||
829	>	s == Thread.State.TIMED_WAITING)
830	>	return;
831	>	else if (s == Thread.State.TERMINATED)
832	>	fail("Unexpected thread termination");
833	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
834	>	threadAssertTrue(thread.isAlive());
835	>	return;
836	>	}
837	>	Thread.yield();
838	>	}
839		}
840
841	<	static class NoOpCallable implements Callable {
842	<	public Object call() { return Boolean.TRUE; }
841	>	/**
842	>	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
843	>	* state: BLOCKED, WAITING, or TIMED_WAITING.
844	>	*/
845	>	void waitForThreadToEnterWaitState(Thread thread) {
846	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
847		}
848
849	<	static final String TEST_STRING = "a test string";
849	>	/**
850	>	* Returns the number of milliseconds since time given by
851	>	* startNanoTime, which must have been previously returned from a
852	>	* call to {@link System.nanoTime()}.
853	>	*/
854	>	long millisElapsedSince(long startNanoTime) {
855	>	return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
856	>	}
857
858	<	static class StringTask implements Callable<String> {
859	<	public String call() { return TEST_STRING; }
858	>	/**
859	>	* Returns a new started daemon Thread running the given runnable.
860	>	*/
861	>	Thread newStartedThread(Runnable runnable) {
862	>	Thread t = new Thread(runnable);
863	>	t.setDaemon(true);
864	>	t.start();
865	>	return t;
866		}
867
868	<	static class NPETask implements Callable<String> {
869	<	public String call() { throw new NullPointerException(); }
868	>	/**
869	>	* Waits for the specified time (in milliseconds) for the thread
870	>	* to terminate (using {@link Thread#join(long)}), else interrupts
871	>	* the thread (in the hope that it may terminate later) and fails.
872	>	*/
873	>	void awaitTermination(Thread t, long timeoutMillis) {
874	>	try {
875	>	t.join(timeoutMillis);
876	>	} catch (InterruptedException ie) {
877	>	threadUnexpectedException(ie);
878	>	} finally {
879	>	if (t.getState() != Thread.State.TERMINATED) {
880	>	t.interrupt();
881	>	fail("Test timed out");
882	>	}
883	>	}
884		}
885
886	<	static class CallableOne implements Callable<Integer> {
887	<	public Integer call() { return one; }
886	>	/**
887	>	* Waits for LONG_DELAY_MS milliseconds for the thread to
888	>	* terminate (using {@link Thread#join(long)}), else interrupts
889	>	* the thread (in the hope that it may terminate later) and fails.
890	>	*/
891	>	void awaitTermination(Thread t) {
892	>	awaitTermination(t, LONG_DELAY_MS);
893		}
894
895	<	class ShortRunnable implements Runnable {
896	<	public void run() {
895	>	// Some convenient Runnable classes
896	>
897	>	public abstract class CheckedRunnable implements Runnable {
898	>	protected abstract void realRun() throws Throwable;
899	>
900	>	public final void run() {
901		try {
902	<	Thread.sleep(SHORT_DELAY_MS);
903	<	}
904	<	catch(Exception e) {
375	<	threadUnexpectedException();
902	>	realRun();
903	>	} catch (Throwable t) {
904	>	threadUnexpectedException(t);
905		}
906		}
907		}
908
909	<	class ShortInterruptedRunnable implements Runnable {
910	<	public void run() {
909	>	public abstract class RunnableShouldThrow implements Runnable {
910	>	protected abstract void realRun() throws Throwable;
911	>
912	>	final Class<?> exceptionClass;
913	>
914	>	<T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) {
915	>	this.exceptionClass = exceptionClass;
916	>	}
917	>
918	>	public final void run() {
919		try {
920	<	Thread.sleep(SHORT_DELAY_MS);
921	<	threadShouldThrow();
922	<	}
923	<	catch(InterruptedException success) {
920	>	realRun();
921	>	threadShouldThrow(exceptionClass.getSimpleName());
922	>	} catch (Throwable t) {
923	>	if (! exceptionClass.isInstance(t))
924	>	threadUnexpectedException(t);
925		}
926		}
927		}
928
929	<	class SmallRunnable implements Runnable {
930	<	public void run() {
929	>	public abstract class ThreadShouldThrow extends Thread {
930	>	protected abstract void realRun() throws Throwable;
931	>
932	>	final Class<?> exceptionClass;
933	>
934	>	<T extends Throwable> ThreadShouldThrow(Class<T> exceptionClass) {
935	>	this.exceptionClass = exceptionClass;
936	>	}
937	>
938	>	public final void run() {
939		try {
940	<	Thread.sleep(SMALL_DELAY_MS);
941	<	}
942	<	catch(Exception e) {
943	<	threadUnexpectedException();
940	>	realRun();
941	>	threadShouldThrow(exceptionClass.getSimpleName());
942	>	} catch (Throwable t) {
943	>	if (! exceptionClass.isInstance(t))
944	>	threadUnexpectedException(t);
945		}
946		}
947		}
948
949	<	class SmallPossiblyInterruptedRunnable implements Runnable {
950	<	public void run() {
949	>	public abstract class CheckedInterruptedRunnable implements Runnable {
950	>	protected abstract void realRun() throws Throwable;
951	>
952	>	public final void run() {
953		try {
954	<	Thread.sleep(SMALL_DELAY_MS);
955	<	}
956	<	catch(Exception e) {
954	>	realRun();
955	>	threadShouldThrow("InterruptedException");
956	>	} catch (InterruptedException success) {
957	>	threadAssertFalse(Thread.interrupted());
958	>	} catch (Throwable t) {
959	>	threadUnexpectedException(t);
960		}
961		}
962		}
963
964	<	class SmallCallable implements Callable {
965	<	public Object call() {
964	>	public abstract class CheckedCallable<T> implements Callable<T> {
965	>	protected abstract T realCall() throws Throwable;
966	>
967	>	public final T call() {
968		try {
969	<	Thread.sleep(SMALL_DELAY_MS);
970	<	}
971	<	catch(Exception e) {
972	<	threadUnexpectedException();
969	>	return realCall();
970	>	} catch (Throwable t) {
971	>	threadUnexpectedException(t);
972	>	return null;
973		}
420	–	return Boolean.TRUE;
974		}
975		}
976
977	<	class SmallInterruptedRunnable implements Runnable {
978	<	public void run() {
977	>	public abstract class CheckedInterruptedCallable<T>
978	>	implements Callable<T> {
979	>	protected abstract T realCall() throws Throwable;
980	>
981	>	public final T call() {
982		try {
983	<	Thread.sleep(SMALL_DELAY_MS);
984	<	threadShouldThrow();
985	<	}
986	<	catch(InterruptedException success) {
983	>	T result = realCall();
984	>	threadShouldThrow("InterruptedException");
985	>	return result;
986	>	} catch (InterruptedException success) {
987	>	threadAssertFalse(Thread.interrupted());
988	>	} catch (Throwable t) {
989	>	threadUnexpectedException(t);
990		}
991	+	return null;
992		}
993		}
994
995	+	public static class NoOpRunnable implements Runnable {
996	+	public void run() {}
997	+	}
998	+
999	+	public static class NoOpCallable implements Callable {
1000	+	public Object call() { return Boolean.TRUE; }
1001	+	}
1002
1003	<	class MediumRunnable implements Runnable {
1004	<	public void run() {
1003	>	public static final String TEST_STRING = "a test string";
1004	>
1005	>	public static class StringTask implements Callable<String> {
1006	>	public String call() { return TEST_STRING; }
1007	>	}
1008	>
1009	>	public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
1010	>	return new CheckedCallable<String>() {
1011	>	protected String realCall() {
1012	>	try {
1013	>	latch.await();
1014	>	} catch (InterruptedException quittingTime) {}
1015	>	return TEST_STRING;
1016	>	}};
1017	>	}
1018	>
1019	>	public Runnable awaiter(final CountDownLatch latch) {
1020	>	return new CheckedRunnable() {
1021	>	public void realRun() throws InterruptedException {
1022	>	await(latch);
1023	>	}};
1024	>	}
1025	>
1026	>	public void await(CountDownLatch latch) {
1027	>	try {
1028	>	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1029	>	} catch (Throwable t) {
1030	>	threadUnexpectedException(t);
1031	>	}
1032	>	}
1033	>
1034	>	public void await(Semaphore semaphore) {
1035	>	try {
1036	>	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1037	>	} catch (Throwable t) {
1038	>	threadUnexpectedException(t);
1039	>	}
1040	>	}
1041	>
1042	>	//     /**
1043	>	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1044	>	//      */
1045	>	//     public void await(AtomicBoolean flag) {
1046	>	//         await(flag, LONG_DELAY_MS);
1047	>	//     }
1048	>
1049	>	//     /**
1050	>	//      * Spin-waits up to the specified timeout until flag becomes true.
1051	>	//      */
1052	>	//     public void await(AtomicBoolean flag, long timeoutMillis) {
1053	>	//         long startTime = System.nanoTime();
1054	>	//         while (!flag.get()) {
1055	>	//             if (millisElapsedSince(startTime) > timeoutMillis)
1056	>	//                 throw new AssertionFailedError("timed out");
1057	>	//             Thread.yield();
1058	>	//         }
1059	>	//     }
1060	>
1061	>	public static class NPETask implements Callable<String> {
1062	>	public String call() { throw new NullPointerException(); }
1063	>	}
1064	>
1065	>	public static class CallableOne implements Callable<Integer> {
1066	>	public Integer call() { return one; }
1067	>	}
1068	>
1069	>	public class ShortRunnable extends CheckedRunnable {
1070	>	protected void realRun() throws Throwable {
1071	>	delay(SHORT_DELAY_MS);
1072	>	}
1073	>	}
1074	>
1075	>	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1076	>	protected void realRun() throws InterruptedException {
1077	>	delay(SHORT_DELAY_MS);
1078	>	}
1079	>	}
1080	>
1081	>	public class SmallRunnable extends CheckedRunnable {
1082	>	protected void realRun() throws Throwable {
1083	>	delay(SMALL_DELAY_MS);
1084	>	}
1085	>	}
1086	>
1087	>	public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1088	>	protected void realRun() {
1089		try {
1090	<	Thread.sleep(MEDIUM_DELAY_MS);
1091	<	}
441	<	catch(Exception e) {
442	<	threadUnexpectedException();
443	<	}
1090	>	delay(SMALL_DELAY_MS);
1091	>	} catch (InterruptedException ok) {}
1092		}
1093		}
1094
1095	<	class MediumInterruptedRunnable implements Runnable {
1096	<	public void run() {
1095	>	public class SmallCallable extends CheckedCallable {
1096	>	protected Object realCall() throws InterruptedException {
1097	>	delay(SMALL_DELAY_MS);
1098	>	return Boolean.TRUE;
1099	>	}
1100	>	}
1101	>
1102	>	public class MediumRunnable extends CheckedRunnable {
1103	>	protected void realRun() throws Throwable {
1104	>	delay(MEDIUM_DELAY_MS);
1105	>	}
1106	>	}
1107	>
1108	>	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1109	>	protected void realRun() throws InterruptedException {
1110	>	delay(MEDIUM_DELAY_MS);
1111	>	}
1112	>	}
1113	>
1114	>	public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1115	>	return new CheckedRunnable() {
1116	>	protected void realRun() {
1117	>	try {
1118	>	delay(timeoutMillis);
1119	>	} catch (InterruptedException ok) {}
1120	>	}};
1121	>	}
1122	>
1123	>	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1124	>	protected void realRun() {
1125		try {
1126	<	Thread.sleep(MEDIUM_DELAY_MS);
1127	<	threadShouldThrow();
452	<	}
453	<	catch(InterruptedException success) {
454	<	}
1126	>	delay(MEDIUM_DELAY_MS);
1127	>	} catch (InterruptedException ok) {}
1128		}
1129		}
1130
1131	<	class MediumPossiblyInterruptedRunnable implements Runnable {
1132	<	public void run() {
1131	>	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1132	>	protected void realRun() {
1133		try {
1134	<	Thread.sleep(MEDIUM_DELAY_MS);
1135	<	}
463	<	catch(InterruptedException success) {
464	<	}
1134	>	delay(LONG_DELAY_MS);
1135	>	} catch (InterruptedException ok) {}
1136		}
1137		}
1138
1139		/**
1140		* For use as ThreadFactory in constructors
1141		*/
1142	<	static class SimpleThreadFactory implements ThreadFactory{
1143	<	public Thread newThread(Runnable r){
1142	>	public static class SimpleThreadFactory implements ThreadFactory {
1143	>	public Thread newThread(Runnable r) {
1144		return new Thread(r);
1145	<	}
1145	>	}
1146	>	}
1147	>
1148	>	public interface TrackedRunnable extends Runnable {
1149	>	boolean isDone();
1150	>	}
1151	>
1152	>	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1153	>	return new TrackedRunnable() {
1154	>	private volatile boolean done = false;
1155	>	public boolean isDone() { return done; }
1156	>	public void run() {
1157	>	try {
1158	>	delay(timeoutMillis);
1159	>	done = true;
1160	>	} catch (InterruptedException ok) {}
1161	>	}
1162	>	};
1163		}
1164
1165	<	static class TrackedShortRunnable implements Runnable {
1166	<	volatile boolean done = false;
1165	>	public static class TrackedShortRunnable implements Runnable {
1166	>	public volatile boolean done = false;
1167		public void run() {
1168		try {
1169	<	Thread.sleep(SMALL_DELAY_MS);
1169	>	delay(SHORT_DELAY_MS);
1170		done = true;
1171	<	} catch(Exception e){
484	<	}
1171	>	} catch (InterruptedException ok) {}
1172		}
1173		}
1174
1175	<	static class TrackedMediumRunnable implements Runnable {
1176	<	volatile boolean done = false;
1175	>	public static class TrackedSmallRunnable implements Runnable {
1176	>	public volatile boolean done = false;
1177		public void run() {
1178		try {
1179	<	Thread.sleep(MEDIUM_DELAY_MS);
1179	>	delay(SMALL_DELAY_MS);
1180		done = true;
1181	<	} catch(Exception e){
495	<	}
1181	>	} catch (InterruptedException ok) {}
1182		}
1183		}
1184
1185	<	static class TrackedLongRunnable implements Runnable {
1186	<	volatile boolean done = false;
1185	>	public static class TrackedMediumRunnable implements Runnable {
1186	>	public volatile boolean done = false;
1187		public void run() {
1188		try {
1189	<	Thread.sleep(LONG_DELAY_MS);
1189	>	delay(MEDIUM_DELAY_MS);
1190		done = true;
1191	<	} catch(Exception e){
1192	<	}
1191	>	} catch (InterruptedException ok) {}
1192	>	}
1193	>	}
1194	>
1195	>	public static class TrackedLongRunnable implements Runnable {
1196	>	public volatile boolean done = false;
1197	>	public void run() {
1198	>	try {
1199	>	delay(LONG_DELAY_MS);
1200	>	done = true;
1201	>	} catch (InterruptedException ok) {}
1202		}
1203		}
1204
1205	<	static class TrackedNoOpRunnable implements Runnable {
1206	<	volatile boolean done = false;
1205	>	public static class TrackedNoOpRunnable implements Runnable {
1206	>	public volatile boolean done = false;
1207		public void run() {
1208		done = true;
1209		}
1210		}
1211
1212	<	static class TrackedCallable implements Callable {
1213	<	volatile boolean done = false;
1212	>	public static class TrackedCallable implements Callable {
1213	>	public volatile boolean done = false;
1214		public Object call() {
1215		try {
1216	<	Thread.sleep(SMALL_DELAY_MS);
1216	>	delay(SMALL_DELAY_MS);
1217		done = true;
1218	<	} catch(Exception e){
524	<	}
1218	>	} catch (InterruptedException ok) {}
1219		return Boolean.TRUE;
1220		}
1221		}
1222
1223		/**
1224	+	* Analog of CheckedRunnable for RecursiveAction
1225	+	*/
1226	+	public abstract class CheckedRecursiveAction extends RecursiveAction {
1227	+	protected abstract void realCompute() throws Throwable;
1228	+
1229	+	public final void compute() {
1230	+	try {
1231	+	realCompute();
1232	+	} catch (Throwable t) {
1233	+	threadUnexpectedException(t);
1234	+	}
1235	+	}
1236	+	}
1237	+
1238	+	/**
1239	+	* Analog of CheckedCallable for RecursiveTask
1240	+	*/
1241	+	public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1242	+	protected abstract T realCompute() throws Throwable;
1243	+
1244	+	public final T compute() {
1245	+	try {
1246	+	return realCompute();
1247	+	} catch (Throwable t) {
1248	+	threadUnexpectedException(t);
1249	+	return null;
1250	+	}
1251	+	}
1252	+	}
1253	+
1254	+	/**
1255		* For use as RejectedExecutionHandler in constructors
1256		*/
1257	<	static class NoOpREHandler implements RejectedExecutionHandler{
1258	<	public void rejectedExecution(Runnable r, ThreadPoolExecutor executor){}
1257	>	public static class NoOpREHandler implements RejectedExecutionHandler {
1258	>	public void rejectedExecution(Runnable r,
1259	>	ThreadPoolExecutor executor) {}
1260	>	}
1261	>
1262	>	/**
1263	>	* A CyclicBarrier that uses timed await and fails with
1264	>	* AssertionFailedErrors instead of throwing checked exceptions.
1265	>	*/
1266	>	public class CheckedBarrier extends CyclicBarrier {
1267	>	public CheckedBarrier(int parties) { super(parties); }
1268	>
1269	>	public int await() {
1270	>	try {
1271	>	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1272	>	} catch (TimeoutException e) {
1273	>	throw new AssertionFailedError("timed out");
1274	>	} catch (Exception e) {
1275	>	AssertionFailedError afe =
1276	>	new AssertionFailedError("Unexpected exception: " + e);
1277	>	afe.initCause(e);
1278	>	throw afe;
1279	>	}
1280	>	}
1281	>	}
1282	>
1283	>	void checkEmpty(BlockingQueue q) {
1284	>	try {
1285	>	assertTrue(q.isEmpty());
1286	>	assertEquals(0, q.size());
1287	>	assertNull(q.peek());
1288	>	assertNull(q.poll());
1289	>	assertNull(q.poll(0, MILLISECONDS));
1290	>	assertEquals(q.toString(), "[]");
1291	>	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1292	>	assertFalse(q.iterator().hasNext());
1293	>	try {
1294	>	q.element();
1295	>	shouldThrow();
1296	>	} catch (NoSuchElementException success) {}
1297	>	try {
1298	>	q.iterator().next();
1299	>	shouldThrow();
1300	>	} catch (NoSuchElementException success) {}
1301	>	try {
1302	>	q.remove();
1303	>	shouldThrow();
1304	>	} catch (NoSuchElementException success) {}
1305	>	} catch (InterruptedException ie) {
1306	>	threadUnexpectedException(ie);
1307	>	}
1308	>	}
1309	>
1310	>	void assertSerialEquals(Object x, Object y) {
1311	>	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1312	>	}
1313	>
1314	>	void assertNotSerialEquals(Object x, Object y) {
1315	>	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1316	>	}
1317	>
1318	>	byte[] serialBytes(Object o) {
1319	>	try {
1320	>	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1321	>	ObjectOutputStream oos = new ObjectOutputStream(bos);
1322	>	oos.writeObject(o);
1323	>	oos.flush();
1324	>	oos.close();
1325	>	return bos.toByteArray();
1326	>	} catch (Throwable t) {
1327	>	threadUnexpectedException(t);
1328	>	return new byte[0];
1329	>	}
1330	>	}
1331	>
1332	>	@SuppressWarnings("unchecked")
1333	>	<T> T serialClone(T o) {
1334	>	try {
1335	>	ObjectInputStream ois = new ObjectInputStream
1336	>	(new ByteArrayInputStream(serialBytes(o)));
1337	>	T clone = (T) ois.readObject();
1338	>	assertSame(o.getClass(), clone.getClass());
1339	>	return clone;
1340	>	} catch (Throwable t) {
1341	>	threadUnexpectedException(t);
1342	>	return null;
1343	>	}
1344		}
535	–
536	–
1345		}

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