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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.36 by jsr166, Mon Aug 3 22:08:45 2009 UTC vs.
Revision 1.106 by jsr166, Mon Apr 1 20:06:26 2013 UTC

#	Line 1 | Line 1
1		/*
2		* Written by Doug Lea with assistance from members of JCP JSR-166
3		* Expert Group and released to the public domain, as explained at
4	<	* http://creativecommons.org/licenses/publicdomain
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.util.concurrent.atomic.AtomicBoolean;
26	+	import java.util.concurrent.atomic.AtomicReference;
27		import static java.util.concurrent.TimeUnit.MILLISECONDS;
28	<	import java.io.*;
29	<	import java.security.*;
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,
#	Line 26 | Line 47 | import java.security.*;
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
50	>	* {@code fail}, {@code assertTrue}, etc.) It is OK (but not
51		* particularly recommended) for other code to use these forms too.
52		* Only the most typically used JUnit assertion methods are defined
53		* this way, but enough to live with.</li>
54		*
55		* <li> If you override {@link #setUp} or {@link #tearDown}, make sure
56	<	* to invoke <tt>super.setUp</tt> and <tt>super.tearDown</tt> within
56	>	* to invoke {@code super.setUp} and {@code super.tearDown} within
57		* them. These methods are used to clear and check for thread
58		* assertion failures.</li>
59		*
60	<	* <li>All delays and timeouts must use one of the constants <tt>
61	<	* SHORT_DELAY_MS</tt>, <tt> SMALL_DELAY_MS</tt>, <tt> MEDIUM_DELAY_MS</tt>,
62	<	* <tt> LONG_DELAY_MS</tt>. The idea here is that a SHORT is always
60	>	* <li>All delays and timeouts must use one of the constants {@code
61	>	* SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS},
62	>	* {@code LONG_DELAY_MS}. The idea here is that a SHORT is always
63		* discriminable from zero time, and always allows enough time for the
64		* small amounts of computation (creating a thread, calling a few
65		* methods, etc) needed to reach a timeout point. Similarly, a SMALL
#	Line 48 | Line 69 | import java.security.*;
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 81 | 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
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	<	int iters = 1;
157	<	if (args.length > 0)
158	<	iters = Integer.parseInt(args[0]);
155	>	public static void main(String[] args) {
156	>	if (useSecurityManager) {
157	>	System.err.println("Setting a permissive security manager");
158	>	Policy.setPolicy(permissivePolicy());
159	>	System.setSecurityManager(new SecurityManager());
160	>	}
161	>	int iters = (args.length == 0) ? 1 : Integer.parseInt(args[0]);
162	>
163		Test s = suite();
164		for (int i = 0; i < iters; ++i) {
165	<	junit.textui.TestRunner.run (s);
165	>	junit.textui.TestRunner.run(s);
166		System.gc();
167		System.runFinalization();
168		}
169		System.exit(0);
170		}
171
172	<	/**
173	<	* Collects all JSR166 unit tests as one suite
174	<	*/
175	<	public static Test suite ( ) {
176	<	TestSuite suite = new TestSuite("JSR166 Unit Tests");
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	<	suite.addTest(new TestSuite(ForkJoinPoolTest.class));
200	<	suite.addTest(new TestSuite(ForkJoinTaskTest.class));
201	<	suite.addTest(new TestSuite(RecursiveActionTest.class));
202	<	suite.addTest(new TestSuite(RecursiveTaskTest.class));
203	<	suite.addTest(new TestSuite(LinkedTransferQueueTest.class));
204	<	suite.addTest(new TestSuite(PhaserTest.class));
205	<	suite.addTest(new TestSuite(ThreadLocalRandomTest.class));
206	<	suite.addTest(new TestSuite(AbstractExecutorServiceTest.class));
207	<	suite.addTest(new TestSuite(AbstractQueueTest.class));
208	<	suite.addTest(new TestSuite(AbstractQueuedSynchronizerTest.class));
209	<	suite.addTest(new TestSuite(AbstractQueuedLongSynchronizerTest.class));
210	<	suite.addTest(new TestSuite(ArrayBlockingQueueTest.class));
211	<	suite.addTest(new TestSuite(ArrayDequeTest.class));
212	<	suite.addTest(new TestSuite(AtomicBooleanTest.class));
213	<	suite.addTest(new TestSuite(AtomicIntegerArrayTest.class));
214	<	suite.addTest(new TestSuite(AtomicIntegerFieldUpdaterTest.class));
215	<	suite.addTest(new TestSuite(AtomicIntegerTest.class));
216	<	suite.addTest(new TestSuite(AtomicLongArrayTest.class));
217	<	suite.addTest(new TestSuite(AtomicLongFieldUpdaterTest.class));
218	<	suite.addTest(new TestSuite(AtomicLongTest.class));
219	<	suite.addTest(new TestSuite(AtomicMarkableReferenceTest.class));
220	<	suite.addTest(new TestSuite(AtomicReferenceArrayTest.class));
221	<	suite.addTest(new TestSuite(AtomicReferenceFieldUpdaterTest.class));
222	<	suite.addTest(new TestSuite(AtomicReferenceTest.class));
223	<	suite.addTest(new TestSuite(AtomicStampedReferenceTest.class));
224	<	suite.addTest(new TestSuite(ConcurrentHashMapTest.class));
225	<	suite.addTest(new TestSuite(ConcurrentLinkedQueueTest.class));
226	<	suite.addTest(new TestSuite(ConcurrentSkipListMapTest.class));
227	<	suite.addTest(new TestSuite(ConcurrentSkipListSubMapTest.class));
228	<	suite.addTest(new TestSuite(ConcurrentSkipListSetTest.class));
229	<	suite.addTest(new TestSuite(ConcurrentSkipListSubSetTest.class));
230	<	suite.addTest(new TestSuite(CopyOnWriteArrayListTest.class));
231	<	suite.addTest(new TestSuite(CopyOnWriteArraySetTest.class));
232	<	suite.addTest(new TestSuite(CountDownLatchTest.class));
233	<	suite.addTest(new TestSuite(CyclicBarrierTest.class));
234	<	suite.addTest(new TestSuite(DelayQueueTest.class));
235	<	suite.addTest(new TestSuite(EntryTest.class));
236	<	suite.addTest(new TestSuite(ExchangerTest.class));
237	<	suite.addTest(new TestSuite(ExecutorsTest.class));
238	<	suite.addTest(new TestSuite(ExecutorCompletionServiceTest.class));
239	<	suite.addTest(new TestSuite(FutureTaskTest.class));
240	<	suite.addTest(new TestSuite(LinkedBlockingDequeTest.class));
241	<	suite.addTest(new TestSuite(LinkedBlockingQueueTest.class));
242	<	suite.addTest(new TestSuite(LinkedListTest.class));
243	<	suite.addTest(new TestSuite(LockSupportTest.class));
244	<	suite.addTest(new TestSuite(PriorityBlockingQueueTest.class));
245	<	suite.addTest(new TestSuite(PriorityQueueTest.class));
246	<	suite.addTest(new TestSuite(ReentrantLockTest.class));
247	<	suite.addTest(new TestSuite(ReentrantReadWriteLockTest.class));
248	<	suite.addTest(new TestSuite(ScheduledExecutorTest.class));
249	<	suite.addTest(new TestSuite(ScheduledExecutorSubclassTest.class));
250	<	suite.addTest(new TestSuite(SemaphoreTest.class));
251	<	suite.addTest(new TestSuite(SynchronousQueueTest.class));
252	<	suite.addTest(new TestSuite(SystemTest.class));
253	<	suite.addTest(new TestSuite(ThreadLocalTest.class));
254	<	suite.addTest(new TestSuite(ThreadPoolExecutorTest.class));
255	<	suite.addTest(new TestSuite(ThreadPoolExecutorSubclassTest.class));
256	<	suite.addTest(new TestSuite(ThreadTest.class));
257	<	suite.addTest(new TestSuite(TimeUnitTest.class));
258	<	suite.addTest(new TestSuite(TreeMapTest.class));
259	<	suite.addTest(new TestSuite(TreeSetTest.class));
260	<	suite.addTest(new TestSuite(TreeSubMapTest.class));
261	<	suite.addTest(new TestSuite(TreeSubSetTest.class));
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	>	// 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		}
#	Line 191 | Line 317 | public class JSR166TestCase extends Test
317		return 50;
318		}
319
194	–
320		/**
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	<	* Initializes 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	+	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();
215	–	threadFailed = false;
364		}
365
366		/**
367	<	* Triggers 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
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
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) {
239	<	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
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) {
250	<	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
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) {
261	<	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
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) {
272	<	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
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))) {
283	<	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"
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 threadShouldThrow() {
510	>	public void threadAssertSame(Object x, Object y) {
511		try {
512	<	threadFailed = true;
513	<	fail("should throw exception");
514	<	} catch (AssertionFailedError e) {
515	<	e.printStackTrace();
297	<	throw e;
512	>	assertSame(x, y);
513	>	} catch (AssertionFailedError t) {
514	>	threadRecordFailure(t);
515	>	throw t;
516		}
517		}
518
519		/**
520	<	* threadFail with message "Unexpected exception"
520	>	* Calls threadFail with message "should throw exception".
521		*/
522	<	public void threadUnexpectedException() {
523	<	threadFailed = true;
306	<	fail("Unexpected exception");
522	>	public void threadShouldThrow() {
523	>	threadFail("should throw exception");
524		}
525
526		/**
527	<	* threadFail with message "Unexpected exception", with argument
527	>	* Calls threadFail with message "should throw" + exceptionName.
528		*/
529	<	public void threadUnexpectedException(Throwable ex) {
530	<	threadFailed = true;
531	<	ex.printStackTrace();
532	<	fail("Unexpected exception: " + ex);
529	>	public void threadShouldThrow(String exceptionName) {
530	>	threadFail("should throw " + exceptionName);
531	>	}
532	>
533	>	/**
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(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	<	* Wait out termination of a thread pool or fail doing so
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	<	public void joinPool(ExecutorService exec) {
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	>	* Waits out termination of a thread pool or fails doing so.
576	>	*/
577	>	void joinPool(ExecutorService exec) {
578		try {
579		exec.shutdown();
580	<	assertTrue(exec.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
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 exception");
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	<	* fail with message "should throw exception"
629	>	* Checks that the threads do not terminate within the given millisecond delay.
630		*/
631	<	public void shouldThrow() {
632	<	fail("Should throw exception");
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	<	* fail with message "Unexpected exception"
643	>	* Checks that future.get times out, with the default timeout of
644	>	* {@code timeoutMillis()}.
645		*/
646	<	public void unexpectedException() {
647	<	fail("Unexpected exception");
646	>	void assertFutureTimesOut(Future future) {
647	>	assertFutureTimesOut(future, timeoutMillis());
648		}
649
650		/**
651	<	* fail with message "Unexpected exception", with argument
651	>	* Checks that future.get times out, with the given millisecond timeout.
652		*/
653	<	public void unexpectedException(Throwable ex) {
654	<	ex.printStackTrace();
655	<	fail("Unexpected exception: " + ex);
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	>	* Fails with message "should throw exception".
667	>	*/
668	>	public void shouldThrow() {
669	>	fail("Should throw exception");
670		}
671
672	+	/**
673	+	* Fails with message "should throw " + exceptionName.
674	+	*/
675	+	public void shouldThrow(String exceptionName) {
676	+	fail("Should throw " + exceptionName);
677	+	}
678
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 m6 = new Integer(-6);
702	<	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	+	/**
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	+	/**
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	+	/**
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	+	/**
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	+	/**
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	<	abstract class CheckedRunnable implements Runnable {
904	<	abstract void realRun() throws Throwable;
903	>	public abstract class CheckedRunnable implements Runnable {
904	>	protected abstract void realRun() throws Throwable;
905
906		public final void run() {
907		try {
#	Line 415 | Line 912 | public class JSR166TestCase extends Test
912		}
913		}
914
915	<	abstract class CheckedInterruptedRunnable implements Runnable {
916	<	abstract void realRun() throws Throwable;
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	>	realRun();
927	>	threadShouldThrow(exceptionClass.getSimpleName());
928	>	} catch (Throwable t) {
929	>	if (! exceptionClass.isInstance(t))
930	>	threadUnexpectedException(t);
931	>	}
932	>	}
933	>	}
934	>
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		realRun();
947	<	threadShouldThrow();
947	>	threadShouldThrow(exceptionClass.getSimpleName());
948	>	} catch (Throwable t) {
949	>	if (! exceptionClass.isInstance(t))
950	>	threadUnexpectedException(t);
951	>	}
952	>	}
953	>	}
954	>
955	>	public abstract class CheckedInterruptedRunnable implements Runnable {
956	>	protected abstract void realRun() throws Throwable;
957	>
958	>	public final void run() {
959	>	try {
960	>	realRun();
961	>	threadShouldThrow("InterruptedException");
962		} catch (InterruptedException success) {
963	+	threadAssertFalse(Thread.interrupted());
964		} catch (Throwable t) {
965		threadUnexpectedException(t);
966		}
967		}
968		}
969
970	<	abstract class CheckedCallable<T> implements Callable<T> {
971	<	abstract T realCall() throws Throwable;
970	>	public abstract class CheckedCallable<T> implements Callable<T> {
971	>	protected abstract T realCall() throws Throwable;
972
973		public final T call() {
974		try {
#	Line 442 | Line 980 | public class JSR166TestCase extends Test
980		}
981		}
982
983	<	static class NoOpRunnable implements Runnable {
983	>	public abstract class CheckedInterruptedCallable<T>
984	>	implements Callable<T> {
985	>	protected abstract T realCall() throws Throwable;
986	>
987	>	public final T call() {
988	>	try {
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	>	public static class NoOpRunnable implements Runnable {
1002		public void run() {}
1003		}
1004
1005	<	static class NoOpCallable implements Callable {
1005	>	public static class NoOpCallable implements Callable {
1006		public Object call() { return Boolean.TRUE; }
1007		}
1008
1009	<	static final String TEST_STRING = "a test string";
1009	>	public static final String TEST_STRING = "a test string";
1010
1011	<	static class StringTask implements Callable<String> {
1011	>	public static class StringTask implements Callable<String> {
1012		public String call() { return TEST_STRING; }
1013		}
1014
1015	<	static class NPETask implements Callable<String> {
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	<	static class CallableOne implements Callable<Integer> {
1071	>	public static class CallableOne implements Callable<Integer> {
1072		public Integer call() { return one; }
1073		}
1074
1075	<	class ShortRunnable extends CheckedRunnable {
1076	<	void realRun() throws Throwable {
1077	<	Thread.sleep(SHORT_DELAY_MS);
1075	>	public class ShortRunnable extends CheckedRunnable {
1076	>	protected void realRun() throws Throwable {
1077	>	delay(SHORT_DELAY_MS);
1078		}
1079		}
1080
1081	<	class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1082	<	void realRun() throws InterruptedException {
1083	<	Thread.sleep(SHORT_DELAY_MS);
1081	>	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1082	>	protected void realRun() throws InterruptedException {
1083	>	delay(SHORT_DELAY_MS);
1084		}
1085		}
1086
1087	<	class SmallRunnable extends CheckedRunnable {
1088	<	void realRun() throws Throwable {
1089	<	Thread.sleep(SMALL_DELAY_MS);
1087	>	public class SmallRunnable extends CheckedRunnable {
1088	>	protected void realRun() throws Throwable {
1089	>	delay(SMALL_DELAY_MS);
1090		}
1091		}
1092
1093	<	class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1094	<	void realRun() {
1093	>	public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1094	>	protected void realRun() {
1095		try {
1096	<	Thread.sleep(SMALL_DELAY_MS);
1097	<	}
490	<	catch (InterruptedException ok) {
491	<	}
1096	>	delay(SMALL_DELAY_MS);
1097	>	} catch (InterruptedException ok) {}
1098		}
1099		}
1100
1101	<	class SmallCallable extends CheckedCallable {
1102	<	Object realCall() throws Throwable {
1103	<	Thread.sleep(SMALL_DELAY_MS);
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	<	class SmallInterruptedRunnable extends CheckedInterruptedRunnable {
1109	<	void realRun() throws InterruptedException {
1110	<	Thread.sleep(SMALL_DELAY_MS);
1108	>	public class MediumRunnable extends CheckedRunnable {
1109	>	protected void realRun() throws Throwable {
1110	>	delay(MEDIUM_DELAY_MS);
1111		}
1112		}
1113
1114	<	class MediumRunnable extends CheckedRunnable {
1115	<	void realRun() throws Throwable {
1116	<	Thread.sleep(MEDIUM_DELAY_MS);
1114	>	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1115	>	protected void realRun() throws InterruptedException {
1116	>	delay(MEDIUM_DELAY_MS);
1117		}
1118		}
1119
1120	<	class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1121	<	void realRun() throws InterruptedException {
1122	<	Thread.sleep(MEDIUM_DELAY_MS);
1123	<	}
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	<	class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1130	<	void realRun() {
1129	>	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1130	>	protected void realRun() {
1131		try {
1132	<	Thread.sleep(MEDIUM_DELAY_MS);
1133	<	}
525	<	catch (InterruptedException ok) {
526	<	}
1132	>	delay(MEDIUM_DELAY_MS);
1133	>	} catch (InterruptedException ok) {}
1134		}
1135		}
1136
1137	<	class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1138	<	void realRun() {
1137	>	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1138	>	protected void realRun() {
1139		try {
1140	<	Thread.sleep(LONG_DELAY_MS);
1141	<	}
535	<	catch (InterruptedException ok) {
536	<	}
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 {
1148	>	public static class SimpleThreadFactory implements ThreadFactory {
1149		public Thread newThread(Runnable r) {
1150		return new Thread(r);
1151		}
1152		}
1153
1154	<	static class TrackedShortRunnable implements Runnable {
1155	<	volatile boolean done = false;
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	>	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) {
556	<	}
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) {
567	<	}
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) {
578	<	}
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) {
596	<	}
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 {
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	+	}
1351	+
1352	+	public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1353	+	Runnable... throwingActions) {
1354	+	for (Runnable throwingAction : throwingActions) {
1355	+	boolean threw = false;
1356	+	try { throwingAction.run(); }
1357	+	catch (Throwable t) {
1358	+	threw = true;
1359	+	if (!expectedExceptionClass.isInstance(t)) {
1360	+	AssertionFailedError afe =
1361	+	new AssertionFailedError
1362	+	("Expected " + expectedExceptionClass.getName() +
1363	+	", got " + t.getClass().getName());
1364	+	afe.initCause(t);
1365	+	threadUnexpectedException(afe);
1366	+	}
1367	+	}
1368	+	if (!threw)
1369	+	shouldThrow(expectedExceptionClass.getName());
1370	+	}
1371	+	}
1372		}

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