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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.25 by dl, Tue Mar 1 01:32:00 2005 UTC vs.
Revision 1.116 by jsr166, Sun Jun 8 00:15:50 2014 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
5	<	* Other contributors include Andrew Wright, Jeffrey Hayes,
6	<	* Pat Fisher, Mike Judd.
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.util.regex.Pattern;
30	>	import java.security.CodeSource;
31	>	import java.security.Permission;
32	>	import java.security.PermissionCollection;
33	>	import java.security.Permissions;
34	>	import java.security.Policy;
35	>	import java.security.ProtectionDomain;
36	>	import java.security.SecurityPermission;
37
38		/**
39		* Base class for JSR166 Junit TCK tests.  Defines some constants,
40		* utility methods and classes, as well as a simple framework for
41		* helping to make sure that assertions failing in generated threads
42		* cause the associated test that generated them to itself fail (which
43	<	* JUnit doe not otherwise arrange).  The rules for creating such
43	>	* JUnit does not otherwise arrange).  The rules for creating such
44		* tests are:
45		*
46		* <ol>
47		*
48		* <li> All assertions in code running in generated threads must use
49	<	* the forms {@link #threadFail} , {@link #threadAssertTrue} {@link
49	>	* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link
50		* #threadAssertEquals}, or {@link #threadAssertNull}, (not
51	<	* <tt>fail</tt>, <tt>assertTrue</tt>, etc.) It is OK (but not
51	>	* {@code fail}, {@code assertTrue}, etc.) It is OK (but not
52		* particularly recommended) for other code to use these forms too.
53		* Only the most typically used JUnit assertion methods are defined
54		* this way, but enough to live with.</li>
55		*
56		* <li> If you override {@link #setUp} or {@link #tearDown}, make sure
57	<	* to invoke <tt>super.setUp</tt> and <tt>super.tearDown</tt> within
57	>	* to invoke {@code super.setUp} and {@code super.tearDown} within
58		* them. These methods are used to clear and check for thread
59		* assertion failures.</li>
60		*
61	<	* <li>All delays and timeouts must use one of the constants <tt>
62	<	* SHORT_DELAY_MS</tt>, <tt> SMALL_DELAY_MS</tt>, <tt> MEDIUM_DELAY_MS</tt>,
63	<	* <tt> LONG_DELAY_MS</tt>. The idea here is that a SHORT is always
61	>	* <li>All delays and timeouts must use one of the constants {@code
62	>	* SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS},
63	>	* {@code LONG_DELAY_MS}. The idea here is that a SHORT is always
64		* discriminable from zero time, and always allows enough time for the
65		* small amounts of computation (creating a thread, calling a few
66		* methods, etc) needed to reach a timeout point. Similarly, a SMALL
67		* is always discriminable as larger than SHORT and smaller than
68		* MEDIUM.  And so on. These constants are set to conservative values,
69		* but even so, if there is ever any doubt, they can all be increased
70	<	* in one spot to rerun tests on slower platforms</li>
70	>	* in one spot to rerun tests on slower platforms.</li>
71		*
72		* <li> All threads generated must be joined inside each test case
73	<	* method (or <tt>fail</tt> to do so) before returning from the
74	<	* method. The <tt> joinPool</tt> method can be used to do this when
73	>	* method (or {@code fail} to do so) before returning from the
74	>	* method. The {@code joinPool} method can be used to do this when
75		* using Executors.</li>
76		*
77		* </ol>
78		*
79	<	* <p> <b>Other notes</b>
79	>	* <p><b>Other notes</b>
80		* <ul>
81		*
82		* <li> Usually, there is one testcase method per JSR166 method
#	Line 63 | Line 86 | import java.security.*;
86		* "normal" behaviors differ significantly. And sometimes testcases
87		* cover multiple methods when they cannot be tested in
88		* isolation.</li>
89	<	*
89	>	*
90		* <li> The documentation style for testcases is to provide as javadoc
91		* a simple sentence or two describing the property that the testcase
92		* method purports to test. The javadocs do not say anything about how
#	Line 80 | Line 103 | import java.security.*;
103		* any particular package to simplify things for people integrating
104		* them in TCK test suites.</li>
105		*
106	<	* <li> As a convenience, the <tt>main</tt> of this class (JSR166TestCase)
106	>	* <li> As a convenience, the {@code main} of this class (JSR166TestCase)
107		* runs all JSR166 unit tests.</li>
108		*
109		* </ul>
110		*/
111		public class JSR166TestCase extends TestCase {
112	+	private static final boolean useSecurityManager =
113	+	Boolean.getBoolean("jsr166.useSecurityManager");
114	+
115	+	protected static final boolean expensiveTests =
116	+	Boolean.getBoolean("jsr166.expensiveTests");
117	+
118	+	/**
119	+	* If true, report on stdout all "slow" tests, that is, ones that
120	+	* take more than profileThreshold milliseconds to execute.
121	+	*/
122	+	private static final boolean profileTests =
123	+	Boolean.getBoolean("jsr166.profileTests");
124	+
125	+	/**
126	+	* The number of milliseconds that tests are permitted for
127	+	* execution without being reported, when profileTests is set.
128	+	*/
129	+	private static final long profileThreshold =
130	+	Long.getLong("jsr166.profileThreshold", 100);
131	+
132	+	/**
133	+	* The number of repetitions per test (for tickling rare bugs).
134	+	*/
135	+	private static final int runsPerTest =
136	+	Integer.getInteger("jsr166.runsPerTest", 1);
137	+
138	+	/**
139	+	* A filter for tests to run, matching strings of the form
140	+	* methodName(className), e.g. "testInvokeAll5(ForkJoinPoolTest)"
141	+	* Usefully combined with jsr166.runsPerTest.
142	+	*/
143	+	private static final Pattern methodFilter = methodFilter();
144	+
145	+	private static Pattern methodFilter() {
146	+	String regex = System.getProperty("jsr166.methodFilter");
147	+	return (regex == null) ? null : Pattern.compile(regex);
148	+	}
149	+
150	+	protected void runTest() throws Throwable {
151	+	if (methodFilter == null
152	+	|| methodFilter.matcher(toString()).find()) {
153	+	for (int i = 0; i < runsPerTest; i++) {
154	+	if (profileTests)
155	+	runTestProfiled();
156	+	else
157	+	super.runTest();
158	+	}
159	+	}
160	+	}
161	+
162	+	protected void runTestProfiled() throws Throwable {
163	+	// Warmup run, notably to trigger all needed classloading.
164	+	super.runTest();
165	+	long t0 = System.nanoTime();
166	+	try {
167	+	super.runTest();
168	+	} finally {
169	+	long elapsedMillis = millisElapsedSince(t0);
170	+	if (elapsedMillis >= profileThreshold)
171	+	System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
172	+	}
173	+	}
174	+
175		/**
176	<	* Runs all JSR166 unit tests using junit.textui.TestRunner
177	<	*/
178	<	public static void main (String[] args) {
179	<	int iters = 1;
180	<	if (args.length > 0)
181	<	iters = Integer.parseInt(args[0]);
176	>	* Runs all JSR166 unit tests using junit.textui.TestRunner.
177	>	* Optional command line arg provides the number of iterations to
178	>	* repeat running the tests.
179	>	*/
180	>	public static void main(String[] args) {
181	>	if (useSecurityManager) {
182	>	System.err.println("Setting a permissive security manager");
183	>	Policy.setPolicy(permissivePolicy());
184	>	System.setSecurityManager(new SecurityManager());
185	>	}
186	>	int iters = (args.length == 0) ? 1 : Integer.parseInt(args[0]);
187	>
188		Test s = suite();
189		for (int i = 0; i < iters; ++i) {
190	<	junit.textui.TestRunner.run (s);
190	>	junit.textui.TestRunner.run(s);
191		System.gc();
192		System.runFinalization();
193		}
194		System.exit(0);
195		}
196
197	+	public static TestSuite newTestSuite(Object... suiteOrClasses) {
198	+	TestSuite suite = new TestSuite();
199	+	for (Object suiteOrClass : suiteOrClasses) {
200	+	if (suiteOrClass instanceof TestSuite)
201	+	suite.addTest((TestSuite) suiteOrClass);
202	+	else if (suiteOrClass instanceof Class)
203	+	suite.addTest(new TestSuite((Class<?>) suiteOrClass));
204	+	else
205	+	throw new ClassCastException("not a test suite or class");
206	+	}
207	+	return suite;
208	+	}
209	+
210	+	public static void addNamedTestClasses(TestSuite suite,
211	+	String... testClassNames) {
212	+	for (String testClassName : testClassNames) {
213	+	try {
214	+	Class<?> testClass = Class.forName(testClassName);
215	+	Method m = testClass.getDeclaredMethod("suite",
216	+	new Class<?>[0]);
217	+	suite.addTest(newTestSuite((Test)m.invoke(null)));
218	+	} catch (Exception e) {
219	+	throw new Error("Missing test class", e);
220	+	}
221	+	}
222	+	}
223	+
224	+	public static final double JAVA_CLASS_VERSION;
225	+	public static final String JAVA_SPECIFICATION_VERSION;
226	+	static {
227	+	try {
228	+	JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
229	+	new java.security.PrivilegedAction<Double>() {
230	+	public Double run() {
231	+	return Double.valueOf(System.getProperty("java.class.version"));}});
232	+	JAVA_SPECIFICATION_VERSION = java.security.AccessController.doPrivileged(
233	+	new java.security.PrivilegedAction<String>() {
234	+	public String run() {
235	+	return System.getProperty("java.specification.version");}});
236	+	} catch (Throwable t) {
237	+	throw new Error(t);
238	+	}
239	+	}
240	+
241	+	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
242	+	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
243	+	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
244	+	public static boolean atLeastJava9() {
245	+	// As of 2014-05, java9 still uses 52.0 class file version
246	+	return JAVA_SPECIFICATION_VERSION.startsWith("1.9");
247	+	}
248	+
249		/**
250	<	* Collects all JSR166 unit tests as one suite
251	<	*/
252	<	public static Test suite ( ) {
253	<	TestSuite suite = new TestSuite("JSR166 Unit Tests");
254	<
255	<	suite.addTest(new TestSuite(AbstractExecutorServiceTest.class));
256	<	suite.addTest(new TestSuite(AbstractQueueTest.class));
257	<	suite.addTest(new TestSuite(AbstractQueuedSynchronizerTest.class));
258	<	suite.addTest(new TestSuite(AbstractQueuedLongSynchronizerTest.class));
259	<	suite.addTest(new TestSuite(ArrayBlockingQueueTest.class));
260	<	suite.addTest(new TestSuite(ArrayDequeTest.class));
261	<	suite.addTest(new TestSuite(AtomicBooleanTest.class));
262	<	suite.addTest(new TestSuite(AtomicIntegerArrayTest.class));
263	<	suite.addTest(new TestSuite(AtomicIntegerFieldUpdaterTest.class));
264	<	suite.addTest(new TestSuite(AtomicIntegerTest.class));
265	<	suite.addTest(new TestSuite(AtomicLongArrayTest.class));
266	<	suite.addTest(new TestSuite(AtomicLongFieldUpdaterTest.class));
267	<	suite.addTest(new TestSuite(AtomicLongTest.class));
268	<	suite.addTest(new TestSuite(AtomicMarkableReferenceTest.class));
269	<	suite.addTest(new TestSuite(AtomicReferenceArrayTest.class));
270	<	suite.addTest(new TestSuite(AtomicReferenceFieldUpdaterTest.class));
271	<	suite.addTest(new TestSuite(AtomicReferenceTest.class));
272	<	suite.addTest(new TestSuite(AtomicStampedReferenceTest.class));
273	<	suite.addTest(new TestSuite(ConcurrentHashMapTest.class));
274	<	suite.addTest(new TestSuite(ConcurrentLinkedQueueTest.class));
275	<	suite.addTest(new TestSuite(ConcurrentSkipListMapTest.class));
276	<	suite.addTest(new TestSuite(ConcurrentSkipListSubMapTest.class));
277	<	suite.addTest(new TestSuite(ConcurrentSkipListSetTest.class));
278	<	suite.addTest(new TestSuite(ConcurrentSkipListSubSetTest.class));
279	<	suite.addTest(new TestSuite(CopyOnWriteArrayListTest.class));
280	<	suite.addTest(new TestSuite(CopyOnWriteArraySetTest.class));
281	<	suite.addTest(new TestSuite(CountDownLatchTest.class));
282	<	suite.addTest(new TestSuite(CyclicBarrierTest.class));
283	<	suite.addTest(new TestSuite(DelayQueueTest.class));
284	<	suite.addTest(new TestSuite(ExchangerTest.class));
285	<	suite.addTest(new TestSuite(ExecutorsTest.class));
286	<	suite.addTest(new TestSuite(ExecutorCompletionServiceTest.class));
287	<	suite.addTest(new TestSuite(FutureTaskTest.class));
288	<	suite.addTest(new TestSuite(LinkedBlockingDequeTest.class));
289	<	suite.addTest(new TestSuite(LinkedBlockingQueueTest.class));
290	<	suite.addTest(new TestSuite(LinkedListTest.class));
291	<	suite.addTest(new TestSuite(LockSupportTest.class));
292	<	suite.addTest(new TestSuite(PriorityBlockingQueueTest.class));
293	<	suite.addTest(new TestSuite(PriorityQueueTest.class));
294	<	suite.addTest(new TestSuite(ReentrantLockTest.class));
295	<	suite.addTest(new TestSuite(ReentrantReadWriteLockTest.class));
296	<	suite.addTest(new TestSuite(ScheduledExecutorTest.class));
297	<	suite.addTest(new TestSuite(SemaphoreTest.class));
298	<	suite.addTest(new TestSuite(SynchronousQueueTest.class));
299	<	suite.addTest(new TestSuite(SystemTest.class));
300	<	suite.addTest(new TestSuite(ThreadLocalTest.class));
301	<	suite.addTest(new TestSuite(ThreadPoolExecutorTest.class));
302	<	suite.addTest(new TestSuite(ThreadTest.class));
303	<	suite.addTest(new TestSuite(TimeUnitTest.class));
304	<	suite.addTest(new TestSuite(TreeMapTest.class));
305	<	suite.addTest(new TestSuite(TreeSetTest.class));
306	<
250	>	* Collects all JSR166 unit tests as one suite.
251	>	*/
252	>	public static Test suite() {
253	>	// Java7+ test classes
254	>	TestSuite suite = newTestSuite(
255	>	ForkJoinPoolTest.suite(),
256	>	ForkJoinTaskTest.suite(),
257	>	RecursiveActionTest.suite(),
258	>	RecursiveTaskTest.suite(),
259	>	LinkedTransferQueueTest.suite(),
260	>	PhaserTest.suite(),
261	>	ThreadLocalRandomTest.suite(),
262	>	AbstractExecutorServiceTest.suite(),
263	>	AbstractQueueTest.suite(),
264	>	AbstractQueuedSynchronizerTest.suite(),
265	>	AbstractQueuedLongSynchronizerTest.suite(),
266	>	ArrayBlockingQueueTest.suite(),
267	>	ArrayDequeTest.suite(),
268	>	AtomicBooleanTest.suite(),
269	>	AtomicIntegerArrayTest.suite(),
270	>	AtomicIntegerFieldUpdaterTest.suite(),
271	>	AtomicIntegerTest.suite(),
272	>	AtomicLongArrayTest.suite(),
273	>	AtomicLongFieldUpdaterTest.suite(),
274	>	AtomicLongTest.suite(),
275	>	AtomicMarkableReferenceTest.suite(),
276	>	AtomicReferenceArrayTest.suite(),
277	>	AtomicReferenceFieldUpdaterTest.suite(),
278	>	AtomicReferenceTest.suite(),
279	>	AtomicStampedReferenceTest.suite(),
280	>	ConcurrentHashMapTest.suite(),
281	>	ConcurrentLinkedDequeTest.suite(),
282	>	ConcurrentLinkedQueueTest.suite(),
283	>	ConcurrentSkipListMapTest.suite(),
284	>	ConcurrentSkipListSubMapTest.suite(),
285	>	ConcurrentSkipListSetTest.suite(),
286	>	ConcurrentSkipListSubSetTest.suite(),
287	>	CopyOnWriteArrayListTest.suite(),
288	>	CopyOnWriteArraySetTest.suite(),
289	>	CountDownLatchTest.suite(),
290	>	CyclicBarrierTest.suite(),
291	>	DelayQueueTest.suite(),
292	>	EntryTest.suite(),
293	>	ExchangerTest.suite(),
294	>	ExecutorsTest.suite(),
295	>	ExecutorCompletionServiceTest.suite(),
296	>	FutureTaskTest.suite(),
297	>	LinkedBlockingDequeTest.suite(),
298	>	LinkedBlockingQueueTest.suite(),
299	>	LinkedListTest.suite(),
300	>	LockSupportTest.suite(),
301	>	PriorityBlockingQueueTest.suite(),
302	>	PriorityQueueTest.suite(),
303	>	ReentrantLockTest.suite(),
304	>	ReentrantReadWriteLockTest.suite(),
305	>	ScheduledExecutorTest.suite(),
306	>	ScheduledExecutorSubclassTest.suite(),
307	>	SemaphoreTest.suite(),
308	>	SynchronousQueueTest.suite(),
309	>	SystemTest.suite(),
310	>	ThreadLocalTest.suite(),
311	>	ThreadPoolExecutorTest.suite(),
312	>	ThreadPoolExecutorSubclassTest.suite(),
313	>	ThreadTest.suite(),
314	>	TimeUnitTest.suite(),
315	>	TreeMapTest.suite(),
316	>	TreeSetTest.suite(),
317	>	TreeSubMapTest.suite(),
318	>	TreeSubSetTest.suite());
319	>
320	>	// Java8+ test classes
321	>	if (atLeastJava8()) {
322	>	String[] java8TestClassNames = {
323	>	"Atomic8Test",
324	>	"CompletableFutureTest",
325	>	"ConcurrentHashMap8Test",
326	>	"CountedCompleterTest",
327	>	"DoubleAccumulatorTest",
328	>	"DoubleAdderTest",
329	>	"ForkJoinPool8Test",
330	>	"ForkJoinTask8Test",
331	>	"LongAccumulatorTest",
332	>	"LongAdderTest",
333	>	"SplittableRandomTest",
334	>	"StampedLockTest",
335	>	"ThreadLocalRandom8Test",
336	>	};
337	>	addNamedTestClasses(suite, java8TestClassNames);
338	>	}
339	>
340	>	// Java9+ test classes
341	>	if (atLeastJava9()) {
342	>	String[] java9TestClassNames = {
343	>	"ThreadPoolExecutor9Test",
344	>	};
345	>	addNamedTestClasses(suite, java9TestClassNames);
346	>	}
347	>
348		return suite;
349		}
350
351	+	// Delays for timing-dependent tests, in milliseconds.
352
353		public static long SHORT_DELAY_MS;
354		public static long SMALL_DELAY_MS;
355		public static long MEDIUM_DELAY_MS;
356		public static long LONG_DELAY_MS;
357
172	–
358		/**
359	<	* Return the shortest timed delay. This could
359	>	* Returns the shortest timed delay. This could
360		* be reimplemented to use for example a Property.
361	<	*/
361	>	*/
362		protected long getShortDelay() {
363		return 50;
364		}
365
181	–
366		/**
367	<	* Set delays as multiples of SHORT_DELAY.
367	>	* Sets delays as multiples of SHORT_DELAY.
368		*/
369	<	protected  void setDelays() {
369	>	protected void setDelays() {
370		SHORT_DELAY_MS = getShortDelay();
371	<	SMALL_DELAY_MS = SHORT_DELAY_MS * 5;
371	>	SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
372		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
373	<	LONG_DELAY_MS = SHORT_DELAY_MS * 50;
373	>	LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
374		}
375
376		/**
377	<	* Flag set true if any threadAssert methods fail
377	>	* Returns a timeout in milliseconds to be used in tests that
378	>	* verify that operations block or time out.
379		*/
380	<	volatile boolean threadFailed;
380	>	long timeoutMillis() {
381	>	return SHORT_DELAY_MS / 4;
382	>	}
383
384		/**
385	<	* Initialize test to indicate that no thread assertions have failed
385	>	* Returns a new Date instance representing a time delayMillis
386	>	* milliseconds in the future.
387		*/
388	<	public void setUp() {
388	>	Date delayedDate(long delayMillis) {
389	>	return new Date(System.currentTimeMillis() + delayMillis);
390	>	}
391	>
392	>	/**
393	>	* The first exception encountered if any threadAssertXXX method fails.
394	>	*/
395	>	private final AtomicReference<Throwable> threadFailure
396	>	= new AtomicReference<Throwable>(null);
397	>
398	>	/**
399	>	* Records an exception so that it can be rethrown later in the test
400	>	* harness thread, triggering a test case failure.  Only the first
401	>	* failure is recorded; subsequent calls to this method from within
402	>	* the same test have no effect.
403	>	*/
404	>	public void threadRecordFailure(Throwable t) {
405	>	threadFailure.compareAndSet(null, t);
406	>	}
407	>
408	>	public void setUp() {
409		setDelays();
202	–	threadFailed = false;
410		}
411
412		/**
413	<	* Trigger test case failure if any thread assertions have failed
413	>	* Extra checks that get done for all test cases.
414	>	*
415	>	* Triggers test case failure if any thread assertions have failed,
416	>	* by rethrowing, in the test harness thread, any exception recorded
417	>	* earlier by threadRecordFailure.
418	>	*
419	>	* Triggers test case failure if interrupt status is set in the main thread.
420		*/
421	<	public void tearDown() {
422	<	assertFalse(threadFailed);
421	>	public void tearDown() throws Exception {
422	>	Throwable t = threadFailure.getAndSet(null);
423	>	if (t != null) {
424	>	if (t instanceof Error)
425	>	throw (Error) t;
426	>	else if (t instanceof RuntimeException)
427	>	throw (RuntimeException) t;
428	>	else if (t instanceof Exception)
429	>	throw (Exception) t;
430	>	else {
431	>	AssertionFailedError afe =
432	>	new AssertionFailedError(t.toString());
433	>	afe.initCause(t);
434	>	throw afe;
435	>	}
436	>	}
437	>
438	>	if (Thread.interrupted())
439	>	throw new AssertionFailedError("interrupt status set in main thread");
440	>
441	>	checkForkJoinPoolThreadLeaks();
442		}
443
444		/**
445	<	* Fail, also setting status to indicate current testcase should fail
446	<	*/
445	>	* Find missing try { ... } finally { joinPool(e); }
446	>	*/
447	>	void checkForkJoinPoolThreadLeaks() throws InterruptedException {
448	>	Thread[] survivors = new Thread[5];
449	>	int count = Thread.enumerate(survivors);
450	>	for (int i = 0; i < count; i++) {
451	>	Thread thread = survivors[i];
452	>	String name = thread.getName();
453	>	if (name.startsWith("ForkJoinPool-")) {
454	>	// give thread some time to terminate
455	>	thread.join(LONG_DELAY_MS);
456	>	if (!thread.isAlive()) continue;
457	>	thread.stop();
458	>	throw new AssertionFailedError
459	>	(String.format("Found leaked ForkJoinPool thread test=%s thread=%s%n",
460	>	toString(), name));
461	>	}
462	>	}
463	>	}
464	>
465	>	/**
466	>	* Just like fail(reason), but additionally recording (using
467	>	* threadRecordFailure) any AssertionFailedError thrown, so that
468	>	* the current testcase will fail.
469	>	*/
470		public void threadFail(String reason) {
471	<	threadFailed = true;
472	<	fail(reason);
471	>	try {
472	>	fail(reason);
473	>	} catch (AssertionFailedError t) {
474	>	threadRecordFailure(t);
475	>	fail(reason);
476	>	}
477		}
478
479		/**
480	<	* If expression not true, set status to indicate current testcase
481	<	* should fail
482	<	*/
480	>	* Just like assertTrue(b), but additionally recording (using
481	>	* threadRecordFailure) any AssertionFailedError thrown, so that
482	>	* the current testcase will fail.
483	>	*/
484		public void threadAssertTrue(boolean b) {
485	<	if (!b) {
226	<	threadFailed = true;
485	>	try {
486		assertTrue(b);
487	+	} catch (AssertionFailedError t) {
488	+	threadRecordFailure(t);
489	+	throw t;
490		}
491		}
492
493		/**
494	<	* If expression not false, set status to indicate current testcase
495	<	* should fail
496	<	*/
494	>	* Just like assertFalse(b), but additionally recording (using
495	>	* threadRecordFailure) any AssertionFailedError thrown, so that
496	>	* the current testcase will fail.
497	>	*/
498		public void threadAssertFalse(boolean b) {
499	<	if (b) {
237	<	threadFailed = true;
499	>	try {
500		assertFalse(b);
501	+	} catch (AssertionFailedError t) {
502	+	threadRecordFailure(t);
503	+	throw t;
504		}
505		}
506
507		/**
508	<	* If argument not null, set status to indicate current testcase
509	<	* should fail
510	<	*/
508	>	* Just like assertNull(x), but additionally recording (using
509	>	* threadRecordFailure) any AssertionFailedError thrown, so that
510	>	* the current testcase will fail.
511	>	*/
512		public void threadAssertNull(Object x) {
513	<	if (x != null) {
248	<	threadFailed = true;
513	>	try {
514		assertNull(x);
515	+	} catch (AssertionFailedError t) {
516	+	threadRecordFailure(t);
517	+	throw t;
518		}
519		}
520
521		/**
522	<	* If arguments not equal, set status to indicate current testcase
523	<	* should fail
524	<	*/
522	>	* Just like assertEquals(x, y), but additionally recording (using
523	>	* threadRecordFailure) any AssertionFailedError thrown, so that
524	>	* the current testcase will fail.
525	>	*/
526		public void threadAssertEquals(long x, long y) {
527	<	if (x != y) {
259	<	threadFailed = true;
527	>	try {
528		assertEquals(x, y);
529	+	} catch (AssertionFailedError t) {
530	+	threadRecordFailure(t);
531	+	throw t;
532		}
533		}
534
535		/**
536	<	* If arguments not equal, set status to indicate current testcase
537	<	* should fail
538	<	*/
536	>	* Just like assertEquals(x, y), but additionally recording (using
537	>	* threadRecordFailure) any AssertionFailedError thrown, so that
538	>	* the current testcase will fail.
539	>	*/
540		public void threadAssertEquals(Object x, Object y) {
541	<	if (x != y && (x == null || !x.equals(y))) {
270	<	threadFailed = true;
541	>	try {
542		assertEquals(x, y);
543	+	} catch (AssertionFailedError t) {
544	+	threadRecordFailure(t);
545	+	throw t;
546	+	} catch (Throwable t) {
547	+	threadUnexpectedException(t);
548		}
549		}
550
551		/**
552	<	* threadFail with message "should throw exception"
553	<	*/
552	>	* Just like assertSame(x, y), but additionally recording (using
553	>	* threadRecordFailure) any AssertionFailedError thrown, so that
554	>	* the current testcase will fail.
555	>	*/
556	>	public void threadAssertSame(Object x, Object y) {
557	>	try {
558	>	assertSame(x, y);
559	>	} catch (AssertionFailedError t) {
560	>	threadRecordFailure(t);
561	>	throw t;
562	>	}
563	>	}
564	>
565	>	/**
566	>	* Calls threadFail with message "should throw exception".
567	>	*/
568		public void threadShouldThrow() {
569	<	threadFailed = true;
280	<	fail("should throw exception");
569	>	threadFail("should throw exception");
570		}
571
572		/**
573	<	* threadFail with message "Unexpected exception"
573	>	* Calls threadFail with message "should throw" + exceptionName.
574		*/
575	<	public void threadUnexpectedException() {
576	<	threadFailed = true;
288	<	fail("Unexpected exception");
575	>	public void threadShouldThrow(String exceptionName) {
576	>	threadFail("should throw " + exceptionName);
577		}
578
579	+	/**
580	+	* Records the given exception using {@link #threadRecordFailure},
581	+	* then rethrows the exception, wrapping it in an
582	+	* AssertionFailedError if necessary.
583	+	*/
584	+	public void threadUnexpectedException(Throwable t) {
585	+	threadRecordFailure(t);
586	+	t.printStackTrace();
587	+	if (t instanceof RuntimeException)
588	+	throw (RuntimeException) t;
589	+	else if (t instanceof Error)
590	+	throw (Error) t;
591	+	else {
592	+	AssertionFailedError afe =
593	+	new AssertionFailedError("unexpected exception: " + t);
594	+	afe.initCause(t);
595	+	throw afe;
596	+	}
597	+	}
598
599		/**
600	<	* Wait out termination of a thread pool or fail doing so
600	>	* Delays, via Thread.sleep, for the given millisecond delay, but
601	>	* if the sleep is shorter than specified, may re-sleep or yield
602	>	* until time elapses.
603		*/
604	<	public void joinPool(ExecutorService exec) {
604	>	static void delay(long millis) throws InterruptedException {
605	>	long startTime = System.nanoTime();
606	>	long ns = millis * 1000 * 1000;
607	>	for (;;) {
608	>	if (millis > 0L)
609	>	Thread.sleep(millis);
610	>	else // too short to sleep
611	>	Thread.yield();
612	>	long d = ns - (System.nanoTime() - startTime);
613	>	if (d > 0L)
614	>	millis = d / (1000 * 1000);
615	>	else
616	>	break;
617	>	}
618	>	}
619	>
620	>	/**
621	>	* Waits out termination of a thread pool or fails doing so.
622	>	*/
623	>	void joinPool(ExecutorService exec) {
624		try {
625		exec.shutdown();
626	<	assertTrue(exec.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
627	<	} catch(SecurityException ok) {
626	>	assertTrue("ExecutorService did not terminate in a timely manner",
627	>	exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS));
628	>	} catch (SecurityException ok) {
629		// Allowed in case test doesn't have privs
630	<	} catch(InterruptedException ie) {
631	<	fail("Unexpected exception");
630	>	} catch (InterruptedException ie) {
631	>	fail("Unexpected InterruptedException");
632		}
633		}
634
635	+	/**
636	+	* A debugging tool to print all stack traces, as jstack does.
637	+	*/
638	+	static void printAllStackTraces() {
639	+	for (ThreadInfo info :
640	+	ManagementFactory.getThreadMXBean()
641	+	.dumpAllThreads(true, true))
642	+	System.err.print(info);
643	+	}
644	+
645	+	/**
646	+	* Checks that thread does not terminate within the default
647	+	* millisecond delay of {@code timeoutMillis()}.
648	+	*/
649	+	void assertThreadStaysAlive(Thread thread) {
650	+	assertThreadStaysAlive(thread, timeoutMillis());
651	+	}
652	+
653	+	/**
654	+	* Checks that thread does not terminate within the given millisecond delay.
655	+	*/
656	+	void assertThreadStaysAlive(Thread thread, long millis) {
657	+	try {
658	+	// No need to optimize the failing case via Thread.join.
659	+	delay(millis);
660	+	assertTrue(thread.isAlive());
661	+	} catch (InterruptedException ie) {
662	+	fail("Unexpected InterruptedException");
663	+	}
664	+	}
665	+
666	+	/**
667	+	* Checks that the threads do not terminate within the default
668	+	* millisecond delay of {@code timeoutMillis()}.
669	+	*/
670	+	void assertThreadsStayAlive(Thread... threads) {
671	+	assertThreadsStayAlive(timeoutMillis(), threads);
672	+	}
673	+
674	+	/**
675	+	* Checks that the threads do not terminate within the given millisecond delay.
676	+	*/
677	+	void assertThreadsStayAlive(long millis, Thread... threads) {
678	+	try {
679	+	// No need to optimize the failing case via Thread.join.
680	+	delay(millis);
681	+	for (Thread thread : threads)
682	+	assertTrue(thread.isAlive());
683	+	} catch (InterruptedException ie) {
684	+	fail("Unexpected InterruptedException");
685	+	}
686	+	}
687	+
688	+	/**
689	+	* Checks that future.get times out, with the default timeout of
690	+	* {@code timeoutMillis()}.
691	+	*/
692	+	void assertFutureTimesOut(Future future) {
693	+	assertFutureTimesOut(future, timeoutMillis());
694	+	}
695	+
696	+	/**
697	+	* Checks that future.get times out, with the given millisecond timeout.
698	+	*/
699	+	void assertFutureTimesOut(Future future, long timeoutMillis) {
700	+	long startTime = System.nanoTime();
701	+	try {
702	+	future.get(timeoutMillis, MILLISECONDS);
703	+	shouldThrow();
704	+	} catch (TimeoutException success) {
705	+	} catch (Exception e) {
706	+	threadUnexpectedException(e);
707	+	} finally { future.cancel(true); }
708	+	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
709	+	}
710
711		/**
712	<	* fail with message "should throw exception"
713	<	*/
712	>	* Fails with message "should throw exception".
713	>	*/
714		public void shouldThrow() {
715		fail("Should throw exception");
716		}
717
718		/**
719	<	* fail with message "Unexpected exception"
719	>	* Fails with message "should throw " + exceptionName.
720		*/
721	<	public void unexpectedException() {
722	<	fail("Unexpected exception");
721	>	public void shouldThrow(String exceptionName) {
722	>	fail("Should throw " + exceptionName);
723		}
724
321	–
725		/**
726		* The number of elements to place in collections, arrays, etc.
727		*/
728	<	static final int SIZE = 20;
728	>	public static final int SIZE = 20;
729
730		// Some convenient Integer constants
731
732	<	static final Integer zero = new Integer(0);
733	<	static final Integer one = new Integer(1);
734	<	static final Integer two = new Integer(2);
735	<	static final Integer three  = new Integer(3);
736	<	static final Integer four  = new Integer(4);
737	<	static final Integer five  = new Integer(5);
738	<	static final Integer six = new Integer(6);
739	<	static final Integer seven = new Integer(7);
740	<	static final Integer eight = new Integer(8);
741	<	static final Integer nine = new Integer(9);
742	<	static final Integer m1  = new Integer(-1);
743	<	static final Integer m2  = new Integer(-2);
744	<	static final Integer m3  = new Integer(-3);
745	<	static final Integer m4 = new Integer(-4);
746	<	static final Integer m5 = new Integer(-5);
747	<	static final Integer m10 = new Integer(-10);
732	>	public static final Integer zero  = new Integer(0);
733	>	public static final Integer one   = new Integer(1);
734	>	public static final Integer two   = new Integer(2);
735	>	public static final Integer three = new Integer(3);
736	>	public static final Integer four  = new Integer(4);
737	>	public static final Integer five  = new Integer(5);
738	>	public static final Integer six   = new Integer(6);
739	>	public static final Integer seven = new Integer(7);
740	>	public static final Integer eight = new Integer(8);
741	>	public static final Integer nine  = new Integer(9);
742	>	public static final Integer m1  = new Integer(-1);
743	>	public static final Integer m2  = new Integer(-2);
744	>	public static final Integer m3  = new Integer(-3);
745	>	public static final Integer m4  = new Integer(-4);
746	>	public static final Integer m5  = new Integer(-5);
747	>	public static final Integer m6  = new Integer(-6);
748	>	public static final Integer m10 = new Integer(-10);
749	>
750	>	/**
751	>	* Runs Runnable r with a security policy that permits precisely
752	>	* the specified permissions.  If there is no current security
753	>	* manager, the runnable is run twice, both with and without a
754	>	* security manager.  We require that any security manager permit
755	>	* getPolicy/setPolicy.
756	>	*/
757	>	public void runWithPermissions(Runnable r, Permission... permissions) {
758	>	SecurityManager sm = System.getSecurityManager();
759	>	if (sm == null) {
760	>	r.run();
761	>	}
762	>	runWithSecurityManagerWithPermissions(r, permissions);
763	>	}
764
765	+	/**
766	+	* Runs Runnable r with a security policy that permits precisely
767	+	* the specified permissions.  If there is no current security
768	+	* manager, a temporary one is set for the duration of the
769	+	* Runnable.  We require that any security manager permit
770	+	* getPolicy/setPolicy.
771	+	*/
772	+	public void runWithSecurityManagerWithPermissions(Runnable r,
773	+	Permission... permissions) {
774	+	SecurityManager sm = System.getSecurityManager();
775	+	if (sm == null) {
776	+	Policy savedPolicy = Policy.getPolicy();
777	+	try {
778	+	Policy.setPolicy(permissivePolicy());
779	+	System.setSecurityManager(new SecurityManager());
780	+	runWithSecurityManagerWithPermissions(r, permissions);
781	+	} finally {
782	+	System.setSecurityManager(null);
783	+	Policy.setPolicy(savedPolicy);
784	+	}
785	+	} else {
786	+	Policy savedPolicy = Policy.getPolicy();
787	+	AdjustablePolicy policy = new AdjustablePolicy(permissions);
788	+	Policy.setPolicy(policy);
789	+
790	+	try {
791	+	r.run();
792	+	} finally {
793	+	policy.addPermission(new SecurityPermission("setPolicy"));
794	+	Policy.setPolicy(savedPolicy);
795	+	}
796	+	}
797	+	}
798	+
799	+	/**
800	+	* Runs a runnable without any permissions.
801	+	*/
802	+	public void runWithoutPermissions(Runnable r) {
803	+	runWithPermissions(r);
804	+	}
805
806		/**
807		* A security policy where new permissions can be dynamically added
808		* or all cleared.
809		*/
810	<	static class AdjustablePolicy extends java.security.Policy {
810	>	public static class AdjustablePolicy extends java.security.Policy {
811		Permissions perms = new Permissions();
812	<	AdjustablePolicy() { }
812	>	AdjustablePolicy(Permission... permissions) {
813	>	for (Permission permission : permissions)
814	>	perms.add(permission);
815	>	}
816		void addPermission(Permission perm) { perms.add(perm); }
817		void clearPermissions() { perms = new Permissions(); }
818	<	public PermissionCollection getPermissions(CodeSource cs) {
819	<	return perms;
820	<	}
821	<	public PermissionCollection getPermissions(ProtectionDomain pd) {
822	<	return perms;
823	<	}
824	<	public boolean implies(ProtectionDomain pd, Permission p) {
825	<	return perms.implies(p);
826	<	}
827	<	public void refresh() {}
818	>	public PermissionCollection getPermissions(CodeSource cs) {
819	>	return perms;
820	>	}
821	>	public PermissionCollection getPermissions(ProtectionDomain pd) {
822	>	return perms;
823	>	}
824	>	public boolean implies(ProtectionDomain pd, Permission p) {
825	>	return perms.implies(p);
826	>	}
827	>	public void refresh() {}
828	>	public String toString() {
829	>	List<Permission> ps = new ArrayList<Permission>();
830	>	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
831	>	ps.add(e.nextElement());
832	>	return "AdjustablePolicy with permissions " + ps;
833	>	}
834		}
835
836	+	/**
837	+	* Returns a policy containing all the permissions we ever need.
838	+	*/
839	+	public static Policy permissivePolicy() {
840	+	return new AdjustablePolicy
841	+	// Permissions j.u.c. needs directly
842	+	(new RuntimePermission("modifyThread"),
843	+	new RuntimePermission("getClassLoader"),
844	+	new RuntimePermission("setContextClassLoader"),
845	+	// Permissions needed to change permissions!
846	+	new SecurityPermission("getPolicy"),
847	+	new SecurityPermission("setPolicy"),
848	+	new RuntimePermission("setSecurityManager"),
849	+	// Permissions needed by the junit test harness
850	+	new RuntimePermission("accessDeclaredMembers"),
851	+	new PropertyPermission("*", "read"),
852	+	new java.io.FilePermission("<<ALL FILES>>", "read"));
853	+	}
854
855	<	// Some convenient Runnable classes
855	>	/**
856	>	* Sleeps until the given time has elapsed.
857	>	* Throws AssertionFailedError if interrupted.
858	>	*/
859	>	void sleep(long millis) {
860	>	try {
861	>	delay(millis);
862	>	} catch (InterruptedException ie) {
863	>	AssertionFailedError afe =
864	>	new AssertionFailedError("Unexpected InterruptedException");
865	>	afe.initCause(ie);
866	>	throw afe;
867	>	}
868	>	}
869
870	<	static class NoOpRunnable implements Runnable {
871	<	public void run() {}
870	>	/**
871	>	* Spin-waits up to the specified number of milliseconds for the given
872	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
873	>	*/
874	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
875	>	long startTime = System.nanoTime();
876	>	for (;;) {
877	>	Thread.State s = thread.getState();
878	>	if (s == Thread.State.BLOCKED ||
879	>	s == Thread.State.WAITING ||
880	>	s == Thread.State.TIMED_WAITING)
881	>	return;
882	>	else if (s == Thread.State.TERMINATED)
883	>	fail("Unexpected thread termination");
884	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
885	>	threadAssertTrue(thread.isAlive());
886	>	return;
887	>	}
888	>	Thread.yield();
889	>	}
890		}
891
892	<	static class NoOpCallable implements Callable {
893	<	public Object call() { return Boolean.TRUE; }
892	>	/**
893	>	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
894	>	* state: BLOCKED, WAITING, or TIMED_WAITING.
895	>	*/
896	>	void waitForThreadToEnterWaitState(Thread thread) {
897	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
898		}
899
900	<	static final String TEST_STRING = "a test string";
900	>	/**
901	>	* Returns the number of milliseconds since time given by
902	>	* startNanoTime, which must have been previously returned from a
903	>	* call to {@link System.nanoTime()}.
904	>	*/
905	>	long millisElapsedSince(long startNanoTime) {
906	>	return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
907	>	}
908
909	<	static class StringTask implements Callable<String> {
910	<	public String call() { return TEST_STRING; }
909	>	/**
910	>	* Returns a new started daemon Thread running the given runnable.
911	>	*/
912	>	Thread newStartedThread(Runnable runnable) {
913	>	Thread t = new Thread(runnable);
914	>	t.setDaemon(true);
915	>	t.start();
916	>	return t;
917		}
918
919	<	static class NPETask implements Callable<String> {
920	<	public String call() { throw new NullPointerException(); }
919	>	/**
920	>	* Waits for the specified time (in milliseconds) for the thread
921	>	* to terminate (using {@link Thread#join(long)}), else interrupts
922	>	* the thread (in the hope that it may terminate later) and fails.
923	>	*/
924	>	void awaitTermination(Thread t, long timeoutMillis) {
925	>	try {
926	>	t.join(timeoutMillis);
927	>	} catch (InterruptedException ie) {
928	>	threadUnexpectedException(ie);
929	>	} finally {
930	>	if (t.getState() != Thread.State.TERMINATED) {
931	>	t.interrupt();
932	>	fail("Test timed out");
933	>	}
934	>	}
935		}
936
937	<	static class CallableOne implements Callable<Integer> {
938	<	public Integer call() { return one; }
937	>	/**
938	>	* Waits for LONG_DELAY_MS milliseconds for the thread to
939	>	* terminate (using {@link Thread#join(long)}), else interrupts
940	>	* the thread (in the hope that it may terminate later) and fails.
941	>	*/
942	>	void awaitTermination(Thread t) {
943	>	awaitTermination(t, LONG_DELAY_MS);
944		}
945
946	<	class ShortRunnable implements Runnable {
947	<	public void run() {
946	>	// Some convenient Runnable classes
947	>
948	>	public abstract class CheckedRunnable implements Runnable {
949	>	protected abstract void realRun() throws Throwable;
950	>
951	>	public final void run() {
952		try {
953	<	Thread.sleep(SHORT_DELAY_MS);
954	<	}
955	<	catch(Exception e) {
399	<	threadUnexpectedException();
953	>	realRun();
954	>	} catch (Throwable t) {
955	>	threadUnexpectedException(t);
956		}
957		}
958		}
959
960	<	class ShortInterruptedRunnable implements Runnable {
961	<	public void run() {
960	>	public abstract class RunnableShouldThrow implements Runnable {
961	>	protected abstract void realRun() throws Throwable;
962	>
963	>	final Class<?> exceptionClass;
964	>
965	>	<T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) {
966	>	this.exceptionClass = exceptionClass;
967	>	}
968	>
969	>	public final void run() {
970		try {
971	<	Thread.sleep(SHORT_DELAY_MS);
972	<	threadShouldThrow();
973	<	}
974	<	catch(InterruptedException success) {
971	>	realRun();
972	>	threadShouldThrow(exceptionClass.getSimpleName());
973	>	} catch (Throwable t) {
974	>	if (! exceptionClass.isInstance(t))
975	>	threadUnexpectedException(t);
976		}
977		}
978		}
979
980	<	class SmallRunnable implements Runnable {
981	<	public void run() {
980	>	public abstract class ThreadShouldThrow extends Thread {
981	>	protected abstract void realRun() throws Throwable;
982	>
983	>	final Class<?> exceptionClass;
984	>
985	>	<T extends Throwable> ThreadShouldThrow(Class<T> exceptionClass) {
986	>	this.exceptionClass = exceptionClass;
987	>	}
988	>
989	>	public final void run() {
990		try {
991	<	Thread.sleep(SMALL_DELAY_MS);
992	<	}
993	<	catch(Exception e) {
994	<	threadUnexpectedException();
991	>	realRun();
992	>	threadShouldThrow(exceptionClass.getSimpleName());
993	>	} catch (Throwable t) {
994	>	if (! exceptionClass.isInstance(t))
995	>	threadUnexpectedException(t);
996		}
997		}
998		}
999
1000	<	class SmallPossiblyInterruptedRunnable implements Runnable {
1001	<	public void run() {
1000	>	public abstract class CheckedInterruptedRunnable implements Runnable {
1001	>	protected abstract void realRun() throws Throwable;
1002	>
1003	>	public final void run() {
1004		try {
1005	<	Thread.sleep(SMALL_DELAY_MS);
1006	<	}
1007	<	catch(Exception e) {
1005	>	realRun();
1006	>	threadShouldThrow("InterruptedException");
1007	>	} catch (InterruptedException success) {
1008	>	threadAssertFalse(Thread.interrupted());
1009	>	} catch (Throwable t) {
1010	>	threadUnexpectedException(t);
1011		}
1012		}
1013		}
1014
1015	<	class SmallCallable implements Callable {
1016	<	public Object call() {
1015	>	public abstract class CheckedCallable<T> implements Callable<T> {
1016	>	protected abstract T realCall() throws Throwable;
1017	>
1018	>	public final T call() {
1019		try {
1020	<	Thread.sleep(SMALL_DELAY_MS);
1020	>	return realCall();
1021	>	} catch (Throwable t) {
1022	>	threadUnexpectedException(t);
1023	>	return null;
1024		}
441	–	catch(Exception e) {
442	–	threadUnexpectedException();
443	–	}
444	–	return Boolean.TRUE;
1025		}
1026		}
1027
1028	<	class SmallInterruptedRunnable implements Runnable {
1029	<	public void run() {
1028	>	public abstract class CheckedInterruptedCallable<T>
1029	>	implements Callable<T> {
1030	>	protected abstract T realCall() throws Throwable;
1031	>
1032	>	public final T call() {
1033		try {
1034	<	Thread.sleep(SMALL_DELAY_MS);
1035	<	threadShouldThrow();
1036	<	}
1037	<	catch(InterruptedException success) {
1034	>	T result = realCall();
1035	>	threadShouldThrow("InterruptedException");
1036	>	return result;
1037	>	} catch (InterruptedException success) {
1038	>	threadAssertFalse(Thread.interrupted());
1039	>	} catch (Throwable t) {
1040	>	threadUnexpectedException(t);
1041		}
1042	+	return null;
1043		}
1044		}
1045
1046	+	public static class NoOpRunnable implements Runnable {
1047	+	public void run() {}
1048	+	}
1049
1050	<	class MediumRunnable implements Runnable {
1051	<	public void run() {
1052	<	try {
1053	<	Thread.sleep(MEDIUM_DELAY_MS);
1054	<	}
1055	<	catch(Exception e) {
1056	<	threadUnexpectedException();
1057	<	}
1050	>	public static class NoOpCallable implements Callable {
1051	>	public Object call() { return Boolean.TRUE; }
1052	>	}
1053	>
1054	>	public static final String TEST_STRING = "a test string";
1055	>
1056	>	public static class StringTask implements Callable<String> {
1057	>	public String call() { return TEST_STRING; }
1058	>	}
1059	>
1060	>	public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
1061	>	return new CheckedCallable<String>() {
1062	>	protected String realCall() {
1063	>	try {
1064	>	latch.await();
1065	>	} catch (InterruptedException quittingTime) {}
1066	>	return TEST_STRING;
1067	>	}};
1068	>	}
1069	>
1070	>	public Runnable awaiter(final CountDownLatch latch) {
1071	>	return new CheckedRunnable() {
1072	>	public void realRun() throws InterruptedException {
1073	>	await(latch);
1074	>	}};
1075	>	}
1076	>
1077	>	public void await(CountDownLatch latch) {
1078	>	try {
1079	>	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1080	>	} catch (Throwable t) {
1081	>	threadUnexpectedException(t);
1082		}
1083		}
1084
1085	<	class MediumInterruptedRunnable implements Runnable {
1086	<	public void run() {
1085	>	public void await(Semaphore semaphore) {
1086	>	try {
1087	>	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1088	>	} catch (Throwable t) {
1089	>	threadUnexpectedException(t);
1090	>	}
1091	>	}
1092	>
1093	>	//     /**
1094	>	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1095	>	//      */
1096	>	//     public void await(AtomicBoolean flag) {
1097	>	//         await(flag, LONG_DELAY_MS);
1098	>	//     }
1099	>
1100	>	//     /**
1101	>	//      * Spin-waits up to the specified timeout until flag becomes true.
1102	>	//      */
1103	>	//     public void await(AtomicBoolean flag, long timeoutMillis) {
1104	>	//         long startTime = System.nanoTime();
1105	>	//         while (!flag.get()) {
1106	>	//             if (millisElapsedSince(startTime) > timeoutMillis)
1107	>	//                 throw new AssertionFailedError("timed out");
1108	>	//             Thread.yield();
1109	>	//         }
1110	>	//     }
1111	>
1112	>	public static class NPETask implements Callable<String> {
1113	>	public String call() { throw new NullPointerException(); }
1114	>	}
1115	>
1116	>	public static class CallableOne implements Callable<Integer> {
1117	>	public Integer call() { return one; }
1118	>	}
1119	>
1120	>	public class ShortRunnable extends CheckedRunnable {
1121	>	protected void realRun() throws Throwable {
1122	>	delay(SHORT_DELAY_MS);
1123	>	}
1124	>	}
1125	>
1126	>	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1127	>	protected void realRun() throws InterruptedException {
1128	>	delay(SHORT_DELAY_MS);
1129	>	}
1130	>	}
1131	>
1132	>	public class SmallRunnable extends CheckedRunnable {
1133	>	protected void realRun() throws Throwable {
1134	>	delay(SMALL_DELAY_MS);
1135	>	}
1136	>	}
1137	>
1138	>	public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1139	>	protected void realRun() {
1140		try {
1141	<	Thread.sleep(MEDIUM_DELAY_MS);
1142	<	threadShouldThrow();
476	<	}
477	<	catch(InterruptedException success) {
478	<	}
1141	>	delay(SMALL_DELAY_MS);
1142	>	} catch (InterruptedException ok) {}
1143		}
1144		}
1145
1146	<	class MediumPossiblyInterruptedRunnable implements Runnable {
1147	<	public void run() {
1146	>	public class SmallCallable extends CheckedCallable {
1147	>	protected Object realCall() throws InterruptedException {
1148	>	delay(SMALL_DELAY_MS);
1149	>	return Boolean.TRUE;
1150	>	}
1151	>	}
1152	>
1153	>	public class MediumRunnable extends CheckedRunnable {
1154	>	protected void realRun() throws Throwable {
1155	>	delay(MEDIUM_DELAY_MS);
1156	>	}
1157	>	}
1158	>
1159	>	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1160	>	protected void realRun() throws InterruptedException {
1161	>	delay(MEDIUM_DELAY_MS);
1162	>	}
1163	>	}
1164	>
1165	>	public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1166	>	return new CheckedRunnable() {
1167	>	protected void realRun() {
1168	>	try {
1169	>	delay(timeoutMillis);
1170	>	} catch (InterruptedException ok) {}
1171	>	}};
1172	>	}
1173	>
1174	>	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1175	>	protected void realRun() {
1176		try {
1177	<	Thread.sleep(MEDIUM_DELAY_MS);
1178	<	}
487	<	catch(InterruptedException success) {
488	<	}
1177	>	delay(MEDIUM_DELAY_MS);
1178	>	} catch (InterruptedException ok) {}
1179		}
1180		}
1181
1182	<	class LongPossiblyInterruptedRunnable implements Runnable {
1183	<	public void run() {
1182	>	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1183	>	protected void realRun() {
1184		try {
1185	<	Thread.sleep(LONG_DELAY_MS);
1186	<	}
497	<	catch(InterruptedException success) {
498	<	}
1185	>	delay(LONG_DELAY_MS);
1186	>	} catch (InterruptedException ok) {}
1187		}
1188		}
1189
1190		/**
1191		* For use as ThreadFactory in constructors
1192		*/
1193	<	static class SimpleThreadFactory implements ThreadFactory{
1194	<	public Thread newThread(Runnable r){
1193	>	public static class SimpleThreadFactory implements ThreadFactory {
1194	>	public Thread newThread(Runnable r) {
1195		return new Thread(r);
1196	<	}
1196	>	}
1197	>	}
1198	>
1199	>	public interface TrackedRunnable extends Runnable {
1200	>	boolean isDone();
1201	>	}
1202	>
1203	>	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1204	>	return new TrackedRunnable() {
1205	>	private volatile boolean done = false;
1206	>	public boolean isDone() { return done; }
1207	>	public void run() {
1208	>	try {
1209	>	delay(timeoutMillis);
1210	>	done = true;
1211	>	} catch (InterruptedException ok) {}
1212	>	}
1213	>	};
1214		}
1215
1216	<	static class TrackedShortRunnable implements Runnable {
1217	<	volatile boolean done = false;
1216	>	public static class TrackedShortRunnable implements Runnable {
1217	>	public volatile boolean done = false;
1218		public void run() {
1219		try {
1220	<	Thread.sleep(SMALL_DELAY_MS);
1220	>	delay(SHORT_DELAY_MS);
1221		done = true;
1222	<	} catch(Exception e){
518	<	}
1222	>	} catch (InterruptedException ok) {}
1223		}
1224		}
1225
1226	<	static class TrackedMediumRunnable implements Runnable {
1227	<	volatile boolean done = false;
1226	>	public static class TrackedSmallRunnable implements Runnable {
1227	>	public volatile boolean done = false;
1228		public void run() {
1229		try {
1230	<	Thread.sleep(MEDIUM_DELAY_MS);
1230	>	delay(SMALL_DELAY_MS);
1231		done = true;
1232	<	} catch(Exception e){
529	<	}
1232	>	} catch (InterruptedException ok) {}
1233		}
1234		}
1235
1236	<	static class TrackedLongRunnable implements Runnable {
1237	<	volatile boolean done = false;
1236	>	public static class TrackedMediumRunnable implements Runnable {
1237	>	public volatile boolean done = false;
1238		public void run() {
1239		try {
1240	<	Thread.sleep(LONG_DELAY_MS);
1240	>	delay(MEDIUM_DELAY_MS);
1241		done = true;
1242	<	} catch(Exception e){
1243	<	}
1242	>	} catch (InterruptedException ok) {}
1243	>	}
1244	>	}
1245	>
1246	>	public static class TrackedLongRunnable implements Runnable {
1247	>	public volatile boolean done = false;
1248	>	public void run() {
1249	>	try {
1250	>	delay(LONG_DELAY_MS);
1251	>	done = true;
1252	>	} catch (InterruptedException ok) {}
1253		}
1254		}
1255
1256	<	static class TrackedNoOpRunnable implements Runnable {
1257	<	volatile boolean done = false;
1256	>	public static class TrackedNoOpRunnable implements Runnable {
1257	>	public volatile boolean done = false;
1258		public void run() {
1259		done = true;
1260		}
1261		}
1262
1263	<	static class TrackedCallable implements Callable {
1264	<	volatile boolean done = false;
1263	>	public static class TrackedCallable implements Callable {
1264	>	public volatile boolean done = false;
1265		public Object call() {
1266		try {
1267	<	Thread.sleep(SMALL_DELAY_MS);
1267	>	delay(SMALL_DELAY_MS);
1268		done = true;
1269	<	} catch(Exception e){
558	<	}
1269	>	} catch (InterruptedException ok) {}
1270		return Boolean.TRUE;
1271		}
1272		}
1273
1274	+	/**
1275	+	* Analog of CheckedRunnable for RecursiveAction
1276	+	*/
1277	+	public abstract class CheckedRecursiveAction extends RecursiveAction {
1278	+	protected abstract void realCompute() throws Throwable;
1279	+
1280	+	@Override protected final void compute() {
1281	+	try {
1282	+	realCompute();
1283	+	} catch (Throwable t) {
1284	+	threadUnexpectedException(t);
1285	+	}
1286	+	}
1287	+	}
1288	+
1289	+	/**
1290	+	* Analog of CheckedCallable for RecursiveTask
1291	+	*/
1292	+	public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1293	+	protected abstract T realCompute() throws Throwable;
1294	+
1295	+	@Override protected final T compute() {
1296	+	try {
1297	+	return realCompute();
1298	+	} catch (Throwable t) {
1299	+	threadUnexpectedException(t);
1300	+	return null;
1301	+	}
1302	+	}
1303	+	}
1304
1305		/**
1306		* For use as RejectedExecutionHandler in constructors
1307		*/
1308	<	static class NoOpREHandler implements RejectedExecutionHandler{
1309	<	public void rejectedExecution(Runnable r, ThreadPoolExecutor executor){}
1308	>	public static class NoOpREHandler implements RejectedExecutionHandler {
1309	>	public void rejectedExecution(Runnable r,
1310	>	ThreadPoolExecutor executor) {}
1311	>	}
1312	>
1313	>	/**
1314	>	* A CyclicBarrier that uses timed await and fails with
1315	>	* AssertionFailedErrors instead of throwing checked exceptions.
1316	>	*/
1317	>	public class CheckedBarrier extends CyclicBarrier {
1318	>	public CheckedBarrier(int parties) { super(parties); }
1319	>
1320	>	public int await() {
1321	>	try {
1322	>	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1323	>	} catch (TimeoutException e) {
1324	>	throw new AssertionFailedError("timed out");
1325	>	} catch (Exception e) {
1326	>	AssertionFailedError afe =
1327	>	new AssertionFailedError("Unexpected exception: " + e);
1328	>	afe.initCause(e);
1329	>	throw afe;
1330	>	}
1331	>	}
1332	>	}
1333	>
1334	>	void checkEmpty(BlockingQueue q) {
1335	>	try {
1336	>	assertTrue(q.isEmpty());
1337	>	assertEquals(0, q.size());
1338	>	assertNull(q.peek());
1339	>	assertNull(q.poll());
1340	>	assertNull(q.poll(0, MILLISECONDS));
1341	>	assertEquals(q.toString(), "[]");
1342	>	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1343	>	assertFalse(q.iterator().hasNext());
1344	>	try {
1345	>	q.element();
1346	>	shouldThrow();
1347	>	} catch (NoSuchElementException success) {}
1348	>	try {
1349	>	q.iterator().next();
1350	>	shouldThrow();
1351	>	} catch (NoSuchElementException success) {}
1352	>	try {
1353	>	q.remove();
1354	>	shouldThrow();
1355	>	} catch (NoSuchElementException success) {}
1356	>	} catch (InterruptedException ie) {
1357	>	threadUnexpectedException(ie);
1358	>	}
1359	>	}
1360	>
1361	>	void assertSerialEquals(Object x, Object y) {
1362	>	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1363	>	}
1364	>
1365	>	void assertNotSerialEquals(Object x, Object y) {
1366	>	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1367	>	}
1368	>
1369	>	byte[] serialBytes(Object o) {
1370	>	try {
1371	>	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1372	>	ObjectOutputStream oos = new ObjectOutputStream(bos);
1373	>	oos.writeObject(o);
1374	>	oos.flush();
1375	>	oos.close();
1376	>	return bos.toByteArray();
1377	>	} catch (Throwable t) {
1378	>	threadUnexpectedException(t);
1379	>	return new byte[0];
1380	>	}
1381	>	}
1382	>
1383	>	@SuppressWarnings("unchecked")
1384	>	<T> T serialClone(T o) {
1385	>	try {
1386	>	ObjectInputStream ois = new ObjectInputStream
1387	>	(new ByteArrayInputStream(serialBytes(o)));
1388	>	T clone = (T) ois.readObject();
1389	>	assertSame(o.getClass(), clone.getClass());
1390	>	return clone;
1391	>	} catch (Throwable t) {
1392	>	threadUnexpectedException(t);
1393	>	return null;
1394	>	}
1395	>	}
1396	>
1397	>	public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1398	>	Runnable... throwingActions) {
1399	>	for (Runnable throwingAction : throwingActions) {
1400	>	boolean threw = false;
1401	>	try { throwingAction.run(); }
1402	>	catch (Throwable t) {
1403	>	threw = true;
1404	>	if (!expectedExceptionClass.isInstance(t)) {
1405	>	AssertionFailedError afe =
1406	>	new AssertionFailedError
1407	>	("Expected " + expectedExceptionClass.getName() +
1408	>	", got " + t.getClass().getName());
1409	>	afe.initCause(t);
1410	>	threadUnexpectedException(afe);
1411	>	}
1412	>	}
1413	>	if (!threw)
1414	>	shouldThrow(expectedExceptionClass.getName());
1415	>	}
1416		}
570	–
571	–
1417		}

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