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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 1.122 by jsr166, Wed Dec 31 16:44:02 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.AtomicReference;
26	>	import static java.util.concurrent.TimeUnit.MILLISECONDS;
27	>	import static java.util.concurrent.TimeUnit.NANOSECONDS;
28	>	import java.util.regex.Pattern;
29	>	import java.security.CodeSource;
30	>	import java.security.Permission;
31	>	import java.security.PermissionCollection;
32	>	import java.security.Permissions;
33	>	import java.security.Policy;
34	>	import java.security.ProtectionDomain;
35	>	import java.security.SecurityPermission;
36
37		/**
38		* Base class for JSR166 Junit TCK tests.  Defines some constants,
39		* utility methods and classes, as well as a simple framework for
40		* helping to make sure that assertions failing in generated threads
41		* cause the associated test that generated them to itself fail (which
42	<	* JUnit doe not otherwise arrange).  The rules for creating such
42	>	* JUnit does not otherwise arrange).  The rules for creating such
43		* tests are:
44		*
45		* <ol>
46		*
47		* <li> All assertions in code running in generated threads must use
48	<	* the forms {@link #threadFail} , {@link #threadAssertTrue} {@link
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
66		* is always discriminable as larger than SHORT and smaller than
67		* MEDIUM.  And so on. These constants are set to conservative values,
68		* but even so, if there is ever any doubt, they can all be increased
69	<	* in one spot to rerun tests on slower platforms</li>
69	>	* in one spot to rerun tests on slower platforms.</li>
70		*
71		* <li> All threads generated must be joined inside each test case
72	<	* method (or <tt>fail</tt> to do so) before returning from the
73	<	* method. The <tt> joinPool</tt> method can be used to do this when
72	>	* method (or {@code fail} to do so) before returning from the
73	>	* method. The {@code joinPool} method can be used to do this when
74		* using Executors.</li>
75		*
76		* </ol>
77		*
78	<	* <p> <b>Other notes</b>
78	>	* <p><b>Other notes</b>
79		* <ul>
80		*
81		* <li> Usually, there is one testcase method per JSR166 method
#	Line 63 | Line 85 | import java.security.*;
85		* "normal" behaviors differ significantly. And sometimes testcases
86		* cover multiple methods when they cannot be tested in
87		* isolation.</li>
88	<	*
88	>	*
89		* <li> The documentation style for testcases is to provide as javadoc
90		* a simple sentence or two describing the property that the testcase
91		* method purports to test. The javadocs do not say anything about how
#	Line 80 | 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, also run tests that are not part of the official tck
119	+	* because they test unspecified implementation details.
120	+	*/
121	+	protected static final boolean testImplementationDetails =
122	+	Boolean.getBoolean("jsr166.testImplementationDetails");
123	+
124	+	/**
125	+	* If true, report on stdout all "slow" tests, that is, ones that
126	+	* take more than profileThreshold milliseconds to execute.
127	+	*/
128	+	private static final boolean profileTests =
129	+	Boolean.getBoolean("jsr166.profileTests");
130	+
131	+	/**
132	+	* The number of milliseconds that tests are permitted for
133	+	* execution without being reported, when profileTests is set.
134	+	*/
135	+	private static final long profileThreshold =
136	+	Long.getLong("jsr166.profileThreshold", 100);
137	+
138	+	/**
139	+	* The number of repetitions per test (for tickling rare bugs).
140	+	*/
141	+	private static final int runsPerTest =
142	+	Integer.getInteger("jsr166.runsPerTest", 1);
143	+
144		/**
145	<	* Runs all JSR166 unit tests using junit.textui.TestRunner
146	<	*/
147	<	public static void main (String[] args) {
148	<	int iters = 1;
149	<	if (args.length > 0)
150	<	iters = Integer.parseInt(args[0]);
145	>	* A filter for tests to run, matching strings of the form
146	>	* methodName(className), e.g. "testInvokeAll5(ForkJoinPoolTest)"
147	>	* Usefully combined with jsr166.runsPerTest.
148	>	*/
149	>	private static final Pattern methodFilter = methodFilter();
150	>
151	>	private static Pattern methodFilter() {
152	>	String regex = System.getProperty("jsr166.methodFilter");
153	>	return (regex == null) ? null : Pattern.compile(regex);
154	>	}
155	>
156	>	protected void runTest() throws Throwable {
157	>	if (methodFilter == null
158	>	|| methodFilter.matcher(toString()).find()) {
159	>	for (int i = 0; i < runsPerTest; i++) {
160	>	if (profileTests)
161	>	runTestProfiled();
162	>	else
163	>	super.runTest();
164	>	}
165	>	}
166	>	}
167	>
168	>	protected void runTestProfiled() throws Throwable {
169	>	// Warmup run, notably to trigger all needed classloading.
170	>	super.runTest();
171	>	long t0 = System.nanoTime();
172	>	try {
173	>	super.runTest();
174	>	} finally {
175	>	long elapsedMillis = millisElapsedSince(t0);
176	>	if (elapsedMillis >= profileThreshold)
177	>	System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
178	>	}
179	>	}
180	>
181	>	/**
182	>	* Runs all JSR166 unit tests using junit.textui.TestRunner.
183	>	* Optional command line arg provides the number of iterations to
184	>	* repeat running the tests.
185	>	*/
186	>	public static void main(String[] args) {
187	>	if (useSecurityManager) {
188	>	System.err.println("Setting a permissive security manager");
189	>	Policy.setPolicy(permissivePolicy());
190	>	System.setSecurityManager(new SecurityManager());
191	>	}
192	>	int iters = (args.length == 0) ? 1 : Integer.parseInt(args[0]);
193	>
194		Test s = suite();
195		for (int i = 0; i < iters; ++i) {
196	<	junit.textui.TestRunner.run (s);
196	>	junit.textui.TestRunner.run(s);
197		System.gc();
198		System.runFinalization();
199		}
200		System.exit(0);
201		}
202
203	+	public static TestSuite newTestSuite(Object... suiteOrClasses) {
204	+	TestSuite suite = new TestSuite();
205	+	for (Object suiteOrClass : suiteOrClasses) {
206	+	if (suiteOrClass instanceof TestSuite)
207	+	suite.addTest((TestSuite) suiteOrClass);
208	+	else if (suiteOrClass instanceof Class)
209	+	suite.addTest(new TestSuite((Class<?>) suiteOrClass));
210	+	else
211	+	throw new ClassCastException("not a test suite or class");
212	+	}
213	+	return suite;
214	+	}
215	+
216	+	public static void addNamedTestClasses(TestSuite suite,
217	+	String... testClassNames) {
218	+	for (String testClassName : testClassNames) {
219	+	try {
220	+	Class<?> testClass = Class.forName(testClassName);
221	+	Method m = testClass.getDeclaredMethod("suite",
222	+	new Class<?>[0]);
223	+	suite.addTest(newTestSuite((Test)m.invoke(null)));
224	+	} catch (Exception e) {
225	+	throw new Error("Missing test class", e);
226	+	}
227	+	}
228	+	}
229	+
230	+	public static final double JAVA_CLASS_VERSION;
231	+	public static final String JAVA_SPECIFICATION_VERSION;
232	+	static {
233	+	try {
234	+	JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
235	+	new java.security.PrivilegedAction<Double>() {
236	+	public Double run() {
237	+	return Double.valueOf(System.getProperty("java.class.version"));}});
238	+	JAVA_SPECIFICATION_VERSION = java.security.AccessController.doPrivileged(
239	+	new java.security.PrivilegedAction<String>() {
240	+	public String run() {
241	+	return System.getProperty("java.specification.version");}});
242	+	} catch (Throwable t) {
243	+	throw new Error(t);
244	+	}
245	+	}
246	+
247	+	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
248	+	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
249	+	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
250	+	public static boolean atLeastJava9() {
251	+	// As of 2014-05, java9 still uses 52.0 class file version
252	+	return JAVA_SPECIFICATION_VERSION.startsWith("1.9");
253	+	}
254	+
255		/**
256	<	* Collects all JSR166 unit tests as one suite
257	<	*/
258	<	public static Test suite ( ) {
259	<	TestSuite suite = new TestSuite("JSR166 Unit Tests");
260	<
261	<	suite.addTest(new TestSuite(AbstractExecutorServiceTest.class));
262	<	suite.addTest(new TestSuite(AbstractQueueTest.class));
263	<	suite.addTest(new TestSuite(AbstractQueuedSynchronizerTest.class));
264	<	suite.addTest(new TestSuite(AbstractQueuedLongSynchronizerTest.class));
265	<	suite.addTest(new TestSuite(ArrayBlockingQueueTest.class));
266	<	suite.addTest(new TestSuite(ArrayDequeTest.class));
267	<	suite.addTest(new TestSuite(AtomicBooleanTest.class));
268	<	suite.addTest(new TestSuite(AtomicIntegerArrayTest.class));
269	<	suite.addTest(new TestSuite(AtomicIntegerFieldUpdaterTest.class));
270	<	suite.addTest(new TestSuite(AtomicIntegerTest.class));
271	<	suite.addTest(new TestSuite(AtomicLongArrayTest.class));
272	<	suite.addTest(new TestSuite(AtomicLongFieldUpdaterTest.class));
273	<	suite.addTest(new TestSuite(AtomicLongTest.class));
274	<	suite.addTest(new TestSuite(AtomicMarkableReferenceTest.class));
275	<	suite.addTest(new TestSuite(AtomicReferenceArrayTest.class));
276	<	suite.addTest(new TestSuite(AtomicReferenceFieldUpdaterTest.class));
277	<	suite.addTest(new TestSuite(AtomicReferenceTest.class));
278	<	suite.addTest(new TestSuite(AtomicStampedReferenceTest.class));
279	<	suite.addTest(new TestSuite(ConcurrentHashMapTest.class));
280	<	suite.addTest(new TestSuite(ConcurrentLinkedQueueTest.class));
281	<	suite.addTest(new TestSuite(ConcurrentSkipListMapTest.class));
282	<	suite.addTest(new TestSuite(ConcurrentSkipListSubMapTest.class));
283	<	suite.addTest(new TestSuite(ConcurrentSkipListSetTest.class));
284	<	suite.addTest(new TestSuite(ConcurrentSkipListSubSetTest.class));
285	<	suite.addTest(new TestSuite(CopyOnWriteArrayListTest.class));
286	<	suite.addTest(new TestSuite(CopyOnWriteArraySetTest.class));
287	<	suite.addTest(new TestSuite(CountDownLatchTest.class));
288	<	suite.addTest(new TestSuite(CyclicBarrierTest.class));
289	<	suite.addTest(new TestSuite(DelayQueueTest.class));
290	<	suite.addTest(new TestSuite(ExchangerTest.class));
291	<	suite.addTest(new TestSuite(ExecutorsTest.class));
292	<	suite.addTest(new TestSuite(ExecutorCompletionServiceTest.class));
293	<	suite.addTest(new TestSuite(FutureTaskTest.class));
294	<	suite.addTest(new TestSuite(LinkedBlockingDequeTest.class));
295	<	suite.addTest(new TestSuite(LinkedBlockingQueueTest.class));
296	<	suite.addTest(new TestSuite(LinkedListTest.class));
297	<	suite.addTest(new TestSuite(LockSupportTest.class));
298	<	suite.addTest(new TestSuite(PriorityBlockingQueueTest.class));
299	<	suite.addTest(new TestSuite(PriorityQueueTest.class));
300	<	suite.addTest(new TestSuite(ReentrantLockTest.class));
301	<	suite.addTest(new TestSuite(ReentrantReadWriteLockTest.class));
302	<	suite.addTest(new TestSuite(ScheduledExecutorTest.class));
303	<	suite.addTest(new TestSuite(SemaphoreTest.class));
304	<	suite.addTest(new TestSuite(SynchronousQueueTest.class));
305	<	suite.addTest(new TestSuite(SystemTest.class));
306	<	suite.addTest(new TestSuite(ThreadLocalTest.class));
307	<	suite.addTest(new TestSuite(ThreadPoolExecutorTest.class));
308	<	suite.addTest(new TestSuite(ThreadTest.class));
309	<	suite.addTest(new TestSuite(TimeUnitTest.class));
310	<	suite.addTest(new TestSuite(TreeMapTest.class));
311	<	suite.addTest(new TestSuite(TreeSetTest.class));
312	<
256	>	* Collects all JSR166 unit tests as one suite.
257	>	*/
258	>	public static Test suite() {
259	>	// Java7+ test classes
260	>	TestSuite suite = newTestSuite(
261	>	ForkJoinPoolTest.suite(),
262	>	ForkJoinTaskTest.suite(),
263	>	RecursiveActionTest.suite(),
264	>	RecursiveTaskTest.suite(),
265	>	LinkedTransferQueueTest.suite(),
266	>	PhaserTest.suite(),
267	>	ThreadLocalRandomTest.suite(),
268	>	AbstractExecutorServiceTest.suite(),
269	>	AbstractQueueTest.suite(),
270	>	AbstractQueuedSynchronizerTest.suite(),
271	>	AbstractQueuedLongSynchronizerTest.suite(),
272	>	ArrayBlockingQueueTest.suite(),
273	>	ArrayDequeTest.suite(),
274	>	AtomicBooleanTest.suite(),
275	>	AtomicIntegerArrayTest.suite(),
276	>	AtomicIntegerFieldUpdaterTest.suite(),
277	>	AtomicIntegerTest.suite(),
278	>	AtomicLongArrayTest.suite(),
279	>	AtomicLongFieldUpdaterTest.suite(),
280	>	AtomicLongTest.suite(),
281	>	AtomicMarkableReferenceTest.suite(),
282	>	AtomicReferenceArrayTest.suite(),
283	>	AtomicReferenceFieldUpdaterTest.suite(),
284	>	AtomicReferenceTest.suite(),
285	>	AtomicStampedReferenceTest.suite(),
286	>	ConcurrentHashMapTest.suite(),
287	>	ConcurrentLinkedDequeTest.suite(),
288	>	ConcurrentLinkedQueueTest.suite(),
289	>	ConcurrentSkipListMapTest.suite(),
290	>	ConcurrentSkipListSubMapTest.suite(),
291	>	ConcurrentSkipListSetTest.suite(),
292	>	ConcurrentSkipListSubSetTest.suite(),
293	>	CopyOnWriteArrayListTest.suite(),
294	>	CopyOnWriteArraySetTest.suite(),
295	>	CountDownLatchTest.suite(),
296	>	CyclicBarrierTest.suite(),
297	>	DelayQueueTest.suite(),
298	>	EntryTest.suite(),
299	>	ExchangerTest.suite(),
300	>	ExecutorsTest.suite(),
301	>	ExecutorCompletionServiceTest.suite(),
302	>	FutureTaskTest.suite(),
303	>	LinkedBlockingDequeTest.suite(),
304	>	LinkedBlockingQueueTest.suite(),
305	>	LinkedListTest.suite(),
306	>	LockSupportTest.suite(),
307	>	PriorityBlockingQueueTest.suite(),
308	>	PriorityQueueTest.suite(),
309	>	ReentrantLockTest.suite(),
310	>	ReentrantReadWriteLockTest.suite(),
311	>	ScheduledExecutorTest.suite(),
312	>	ScheduledExecutorSubclassTest.suite(),
313	>	SemaphoreTest.suite(),
314	>	SynchronousQueueTest.suite(),
315	>	SystemTest.suite(),
316	>	ThreadLocalTest.suite(),
317	>	ThreadPoolExecutorTest.suite(),
318	>	ThreadPoolExecutorSubclassTest.suite(),
319	>	ThreadTest.suite(),
320	>	TimeUnitTest.suite(),
321	>	TreeMapTest.suite(),
322	>	TreeSetTest.suite(),
323	>	TreeSubMapTest.suite(),
324	>	TreeSubSetTest.suite());
325	>
326	>	// Java8+ test classes
327	>	if (atLeastJava8()) {
328	>	String[] java8TestClassNames = {
329	>	"Atomic8Test",
330	>	"CompletableFutureTest",
331	>	"ConcurrentHashMap8Test",
332	>	"CountedCompleterTest",
333	>	"DoubleAccumulatorTest",
334	>	"DoubleAdderTest",
335	>	"ForkJoinPool8Test",
336	>	"ForkJoinTask8Test",
337	>	"LongAccumulatorTest",
338	>	"LongAdderTest",
339	>	"SplittableRandomTest",
340	>	"StampedLockTest",
341	>	"ThreadLocalRandom8Test",
342	>	};
343	>	addNamedTestClasses(suite, java8TestClassNames);
344	>	}
345	>
346	>	// Java9+ test classes
347	>	if (atLeastJava9()) {
348	>	String[] java9TestClassNames = {
349	>	"ThreadPoolExecutor9Test",
350	>	};
351	>	addNamedTestClasses(suite, java9TestClassNames);
352	>	}
353	>
354		return suite;
355		}
356
357	+	// Delays for timing-dependent tests, in milliseconds.
358
359		public static long SHORT_DELAY_MS;
360		public static long SMALL_DELAY_MS;
361		public static long MEDIUM_DELAY_MS;
362		public static long LONG_DELAY_MS;
363
172	–
364		/**
365	<	* Return the shortest timed delay. This could
365	>	* Returns the shortest timed delay. This could
366		* be reimplemented to use for example a Property.
367	<	*/
367	>	*/
368		protected long getShortDelay() {
369		return 50;
370		}
371
181	–
372		/**
373	<	* Set delays as multiples of SHORT_DELAY.
373	>	* Sets delays as multiples of SHORT_DELAY.
374		*/
375	<	protected  void setDelays() {
375	>	protected void setDelays() {
376		SHORT_DELAY_MS = getShortDelay();
377	<	SMALL_DELAY_MS = SHORT_DELAY_MS * 5;
377	>	SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
378		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
379	<	LONG_DELAY_MS = SHORT_DELAY_MS * 50;
379	>	LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
380		}
381
382		/**
383	<	* Flag set true if any threadAssert methods fail
383	>	* Returns a timeout in milliseconds to be used in tests that
384	>	* verify that operations block or time out.
385		*/
386	<	volatile boolean threadFailed;
386	>	long timeoutMillis() {
387	>	return SHORT_DELAY_MS / 4;
388	>	}
389
390		/**
391	<	* Initialize test to indicate that no thread assertions have failed
391	>	* Returns a new Date instance representing a time delayMillis
392	>	* milliseconds in the future.
393		*/
394	<	public void setUp() {
394	>	Date delayedDate(long delayMillis) {
395	>	return new Date(System.currentTimeMillis() + delayMillis);
396	>	}
397	>
398	>	/**
399	>	* The first exception encountered if any threadAssertXXX method fails.
400	>	*/
401	>	private final AtomicReference<Throwable> threadFailure
402	>	= new AtomicReference<Throwable>(null);
403	>
404	>	/**
405	>	* Records an exception so that it can be rethrown later in the test
406	>	* harness thread, triggering a test case failure.  Only the first
407	>	* failure is recorded; subsequent calls to this method from within
408	>	* the same test have no effect.
409	>	*/
410	>	public void threadRecordFailure(Throwable t) {
411	>	threadFailure.compareAndSet(null, t);
412	>	}
413	>
414	>	public void setUp() {
415		setDelays();
202	–	threadFailed = false;
416		}
417
418		/**
419	<	* Trigger test case failure if any thread assertions have failed
419	>	* Extra checks that get done for all test cases.
420	>	*
421	>	* Triggers test case failure if any thread assertions have failed,
422	>	* by rethrowing, in the test harness thread, any exception recorded
423	>	* earlier by threadRecordFailure.
424	>	*
425	>	* Triggers test case failure if interrupt status is set in the main thread.
426	>	*/
427	>	public void tearDown() throws Exception {
428	>	Throwable t = threadFailure.getAndSet(null);
429	>	if (t != null) {
430	>	if (t instanceof Error)
431	>	throw (Error) t;
432	>	else if (t instanceof RuntimeException)
433	>	throw (RuntimeException) t;
434	>	else if (t instanceof Exception)
435	>	throw (Exception) t;
436	>	else {
437	>	AssertionFailedError afe =
438	>	new AssertionFailedError(t.toString());
439	>	afe.initCause(t);
440	>	throw afe;
441	>	}
442	>	}
443	>
444	>	if (Thread.interrupted())
445	>	throw new AssertionFailedError("interrupt status set in main thread");
446	>
447	>	checkForkJoinPoolThreadLeaks();
448	>	}
449	>
450	>	/**
451	>	* Find missing try { ... } finally { joinPool(e); }
452		*/
453	<	public void tearDown() {
454	<	assertFalse(threadFailed);
453	>	void checkForkJoinPoolThreadLeaks() throws InterruptedException {
454	>	Thread[] survivors = new Thread[5];
455	>	int count = Thread.enumerate(survivors);
456	>	for (int i = 0; i < count; i++) {
457	>	Thread thread = survivors[i];
458	>	String name = thread.getName();
459	>	if (name.startsWith("ForkJoinPool-")) {
460	>	// give thread some time to terminate
461	>	thread.join(LONG_DELAY_MS);
462	>	if (!thread.isAlive()) continue;
463	>	thread.stop();
464	>	throw new AssertionFailedError
465	>	(String.format("Found leaked ForkJoinPool thread test=%s thread=%s%n",
466	>	toString(), name));
467	>	}
468	>	}
469		}
470
471		/**
472	<	* Fail, also setting status to indicate current testcase should fail
473	<	*/
472	>	* Just like fail(reason), but additionally recording (using
473	>	* threadRecordFailure) any AssertionFailedError thrown, so that
474	>	* the current testcase will fail.
475	>	*/
476		public void threadFail(String reason) {
477	<	threadFailed = true;
478	<	fail(reason);
477	>	try {
478	>	fail(reason);
479	>	} catch (AssertionFailedError t) {
480	>	threadRecordFailure(t);
481	>	fail(reason);
482	>	}
483		}
484
485		/**
486	<	* If expression not true, set status to indicate current testcase
487	<	* should fail
488	<	*/
486	>	* Just like assertTrue(b), but additionally recording (using
487	>	* threadRecordFailure) any AssertionFailedError thrown, so that
488	>	* the current testcase will fail.
489	>	*/
490		public void threadAssertTrue(boolean b) {
491	<	if (!b) {
226	<	threadFailed = true;
491	>	try {
492		assertTrue(b);
493	+	} catch (AssertionFailedError t) {
494	+	threadRecordFailure(t);
495	+	throw t;
496		}
497		}
498
499		/**
500	<	* If expression not false, set status to indicate current testcase
501	<	* should fail
502	<	*/
500	>	* Just like assertFalse(b), but additionally recording (using
501	>	* threadRecordFailure) any AssertionFailedError thrown, so that
502	>	* the current testcase will fail.
503	>	*/
504		public void threadAssertFalse(boolean b) {
505	<	if (b) {
237	<	threadFailed = true;
505	>	try {
506		assertFalse(b);
507	+	} catch (AssertionFailedError t) {
508	+	threadRecordFailure(t);
509	+	throw t;
510		}
511		}
512
513		/**
514	<	* If argument not null, set status to indicate current testcase
515	<	* should fail
516	<	*/
514	>	* Just like assertNull(x), but additionally recording (using
515	>	* threadRecordFailure) any AssertionFailedError thrown, so that
516	>	* the current testcase will fail.
517	>	*/
518		public void threadAssertNull(Object x) {
519	<	if (x != null) {
248	<	threadFailed = true;
519	>	try {
520		assertNull(x);
521	+	} catch (AssertionFailedError t) {
522	+	threadRecordFailure(t);
523	+	throw t;
524		}
525		}
526
527		/**
528	<	* If arguments not equal, set status to indicate current testcase
529	<	* should fail
530	<	*/
528	>	* Just like assertEquals(x, y), but additionally recording (using
529	>	* threadRecordFailure) any AssertionFailedError thrown, so that
530	>	* the current testcase will fail.
531	>	*/
532		public void threadAssertEquals(long x, long y) {
533	<	if (x != y) {
259	<	threadFailed = true;
533	>	try {
534		assertEquals(x, y);
535	+	} catch (AssertionFailedError t) {
536	+	threadRecordFailure(t);
537	+	throw t;
538		}
539		}
540
541		/**
542	<	* If arguments not equal, set status to indicate current testcase
543	<	* should fail
544	<	*/
542	>	* Just like assertEquals(x, y), but additionally recording (using
543	>	* threadRecordFailure) any AssertionFailedError thrown, so that
544	>	* the current testcase will fail.
545	>	*/
546		public void threadAssertEquals(Object x, Object y) {
547	<	if (x != y && (x == null || !x.equals(y))) {
270	<	threadFailed = true;
547	>	try {
548		assertEquals(x, y);
549	+	} catch (AssertionFailedError t) {
550	+	threadRecordFailure(t);
551	+	throw t;
552	+	} catch (Throwable t) {
553	+	threadUnexpectedException(t);
554		}
555		}
556
557		/**
558	<	* threadFail with message "should throw exception"
559	<	*/
558	>	* Just like assertSame(x, y), but additionally recording (using
559	>	* threadRecordFailure) any AssertionFailedError thrown, so that
560	>	* the current testcase will fail.
561	>	*/
562	>	public void threadAssertSame(Object x, Object y) {
563	>	try {
564	>	assertSame(x, y);
565	>	} catch (AssertionFailedError t) {
566	>	threadRecordFailure(t);
567	>	throw t;
568	>	}
569	>	}
570	>
571	>	/**
572	>	* Calls threadFail with message "should throw exception".
573	>	*/
574		public void threadShouldThrow() {
575	<	threadFailed = true;
280	<	fail("should throw exception");
575	>	threadFail("should throw exception");
576		}
577
578		/**
579	<	* threadFail with message "Unexpected exception"
579	>	* Calls threadFail with message "should throw" + exceptionName.
580		*/
581	<	public void threadUnexpectedException() {
582	<	threadFailed = true;
288	<	fail("Unexpected exception");
581	>	public void threadShouldThrow(String exceptionName) {
582	>	threadFail("should throw " + exceptionName);
583		}
584
585	+	/**
586	+	* Records the given exception using {@link #threadRecordFailure},
587	+	* then rethrows the exception, wrapping it in an
588	+	* AssertionFailedError if necessary.
589	+	*/
590	+	public void threadUnexpectedException(Throwable t) {
591	+	threadRecordFailure(t);
592	+	t.printStackTrace();
593	+	if (t instanceof RuntimeException)
594	+	throw (RuntimeException) t;
595	+	else if (t instanceof Error)
596	+	throw (Error) t;
597	+	else {
598	+	AssertionFailedError afe =
599	+	new AssertionFailedError("unexpected exception: " + t);
600	+	afe.initCause(t);
601	+	throw afe;
602	+	}
603	+	}
604
605		/**
606	<	* Wait out termination of a thread pool or fail doing so
606	>	* Delays, via Thread.sleep, for the given millisecond delay, but
607	>	* if the sleep is shorter than specified, may re-sleep or yield
608	>	* until time elapses.
609		*/
610	<	public void joinPool(ExecutorService exec) {
610	>	static void delay(long millis) throws InterruptedException {
611	>	long startTime = System.nanoTime();
612	>	long ns = millis * 1000 * 1000;
613	>	for (;;) {
614	>	if (millis > 0L)
615	>	Thread.sleep(millis);
616	>	else // too short to sleep
617	>	Thread.yield();
618	>	long d = ns - (System.nanoTime() - startTime);
619	>	if (d > 0L)
620	>	millis = d / (1000 * 1000);
621	>	else
622	>	break;
623	>	}
624	>	}
625	>
626	>	/**
627	>	* Waits out termination of a thread pool or fails doing so.
628	>	*/
629	>	void joinPool(ExecutorService exec) {
630		try {
631		exec.shutdown();
632	<	assertTrue(exec.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
633	<	} catch(SecurityException ok) {
632	>	if (!exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS))
633	>	fail("ExecutorService " + exec +
634	>	" did not terminate in a timely manner");
635	>	} catch (SecurityException ok) {
636		// Allowed in case test doesn't have privs
637	<	} catch(InterruptedException ie) {
638	<	fail("Unexpected exception");
637	>	} catch (InterruptedException ie) {
638	>	fail("Unexpected InterruptedException");
639	>	}
640	>	}
641	>
642	>	/**
643	>	* A debugging tool to print all stack traces, as jstack does.
644	>	*/
645	>	static void printAllStackTraces() {
646	>	for (ThreadInfo info :
647	>	ManagementFactory.getThreadMXBean()
648	>	.dumpAllThreads(true, true))
649	>	System.err.print(info);
650	>	}
651	>
652	>	/**
653	>	* Checks that thread does not terminate within the default
654	>	* millisecond delay of {@code timeoutMillis()}.
655	>	*/
656	>	void assertThreadStaysAlive(Thread thread) {
657	>	assertThreadStaysAlive(thread, timeoutMillis());
658	>	}
659	>
660	>	/**
661	>	* Checks that thread does not terminate within the given millisecond delay.
662	>	*/
663	>	void assertThreadStaysAlive(Thread thread, long millis) {
664	>	try {
665	>	// No need to optimize the failing case via Thread.join.
666	>	delay(millis);
667	>	assertTrue(thread.isAlive());
668	>	} catch (InterruptedException ie) {
669	>	fail("Unexpected InterruptedException");
670		}
671		}
672
673	+	/**
674	+	* Checks that the threads do not terminate within the default
675	+	* millisecond delay of {@code timeoutMillis()}.
676	+	*/
677	+	void assertThreadsStayAlive(Thread... threads) {
678	+	assertThreadsStayAlive(timeoutMillis(), threads);
679	+	}
680	+
681	+	/**
682	+	* Checks that the threads do not terminate within the given millisecond delay.
683	+	*/
684	+	void assertThreadsStayAlive(long millis, Thread... threads) {
685	+	try {
686	+	// No need to optimize the failing case via Thread.join.
687	+	delay(millis);
688	+	for (Thread thread : threads)
689	+	assertTrue(thread.isAlive());
690	+	} catch (InterruptedException ie) {
691	+	fail("Unexpected InterruptedException");
692	+	}
693	+	}
694	+
695	+	/**
696	+	* Checks that future.get times out, with the default timeout of
697	+	* {@code timeoutMillis()}.
698	+	*/
699	+	void assertFutureTimesOut(Future future) {
700	+	assertFutureTimesOut(future, timeoutMillis());
701	+	}
702	+
703	+	/**
704	+	* Checks that future.get times out, with the given millisecond timeout.
705	+	*/
706	+	void assertFutureTimesOut(Future future, long timeoutMillis) {
707	+	long startTime = System.nanoTime();
708	+	try {
709	+	future.get(timeoutMillis, MILLISECONDS);
710	+	shouldThrow();
711	+	} catch (TimeoutException success) {
712	+	} catch (Exception e) {
713	+	threadUnexpectedException(e);
714	+	} finally { future.cancel(true); }
715	+	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
716	+	}
717
718		/**
719	<	* fail with message "should throw exception"
720	<	*/
719	>	* Fails with message "should throw exception".
720	>	*/
721		public void shouldThrow() {
722		fail("Should throw exception");
723		}
724
725		/**
726	<	* fail with message "Unexpected exception"
726	>	* Fails with message "should throw " + exceptionName.
727		*/
728	<	public void unexpectedException() {
729	<	fail("Unexpected exception");
728	>	public void shouldThrow(String exceptionName) {
729	>	fail("Should throw " + exceptionName);
730		}
731
321	–
732		/**
733		* The number of elements to place in collections, arrays, etc.
734		*/
735	<	static final int SIZE = 20;
735	>	public static final int SIZE = 20;
736
737		// Some convenient Integer constants
738
739	<	static final Integer zero = new Integer(0);
740	<	static final Integer one = new Integer(1);
741	<	static final Integer two = new Integer(2);
742	<	static final Integer three  = new Integer(3);
743	<	static final Integer four  = new Integer(4);
744	<	static final Integer five  = new Integer(5);
745	<	static final Integer six = new Integer(6);
746	<	static final Integer seven = new Integer(7);
747	<	static final Integer eight = new Integer(8);
748	<	static final Integer nine = new Integer(9);
749	<	static final Integer m1  = new Integer(-1);
750	<	static final Integer m2  = new Integer(-2);
751	<	static final Integer m3  = new Integer(-3);
752	<	static final Integer m4 = new Integer(-4);
753	<	static final Integer m5 = new Integer(-5);
754	<	static final Integer m10 = new Integer(-10);
739	>	public static final Integer zero  = new Integer(0);
740	>	public static final Integer one   = new Integer(1);
741	>	public static final Integer two   = new Integer(2);
742	>	public static final Integer three = new Integer(3);
743	>	public static final Integer four  = new Integer(4);
744	>	public static final Integer five  = new Integer(5);
745	>	public static final Integer six   = new Integer(6);
746	>	public static final Integer seven = new Integer(7);
747	>	public static final Integer eight = new Integer(8);
748	>	public static final Integer nine  = new Integer(9);
749	>	public static final Integer m1  = new Integer(-1);
750	>	public static final Integer m2  = new Integer(-2);
751	>	public static final Integer m3  = new Integer(-3);
752	>	public static final Integer m4  = new Integer(-4);
753	>	public static final Integer m5  = new Integer(-5);
754	>	public static final Integer m6  = new Integer(-6);
755	>	public static final Integer m10 = new Integer(-10);
756	>
757	>	/**
758	>	* Runs Runnable r with a security policy that permits precisely
759	>	* the specified permissions.  If there is no current security
760	>	* manager, the runnable is run twice, both with and without a
761	>	* security manager.  We require that any security manager permit
762	>	* getPolicy/setPolicy.
763	>	*/
764	>	public void runWithPermissions(Runnable r, Permission... permissions) {
765	>	SecurityManager sm = System.getSecurityManager();
766	>	if (sm == null) {
767	>	r.run();
768	>	}
769	>	runWithSecurityManagerWithPermissions(r, permissions);
770	>	}
771
772	+	/**
773	+	* Runs Runnable r with a security policy that permits precisely
774	+	* the specified permissions.  If there is no current security
775	+	* manager, a temporary one is set for the duration of the
776	+	* Runnable.  We require that any security manager permit
777	+	* getPolicy/setPolicy.
778	+	*/
779	+	public void runWithSecurityManagerWithPermissions(Runnable r,
780	+	Permission... permissions) {
781	+	SecurityManager sm = System.getSecurityManager();
782	+	if (sm == null) {
783	+	Policy savedPolicy = Policy.getPolicy();
784	+	try {
785	+	Policy.setPolicy(permissivePolicy());
786	+	System.setSecurityManager(new SecurityManager());
787	+	runWithSecurityManagerWithPermissions(r, permissions);
788	+	} finally {
789	+	System.setSecurityManager(null);
790	+	Policy.setPolicy(savedPolicy);
791	+	}
792	+	} else {
793	+	Policy savedPolicy = Policy.getPolicy();
794	+	AdjustablePolicy policy = new AdjustablePolicy(permissions);
795	+	Policy.setPolicy(policy);
796	+
797	+	try {
798	+	r.run();
799	+	} finally {
800	+	policy.addPermission(new SecurityPermission("setPolicy"));
801	+	Policy.setPolicy(savedPolicy);
802	+	}
803	+	}
804	+	}
805	+
806	+	/**
807	+	* Runs a runnable without any permissions.
808	+	*/
809	+	public void runWithoutPermissions(Runnable r) {
810	+	runWithPermissions(r);
811	+	}
812
813		/**
814		* A security policy where new permissions can be dynamically added
815		* or all cleared.
816		*/
817	<	static class AdjustablePolicy extends java.security.Policy {
817	>	public static class AdjustablePolicy extends java.security.Policy {
818		Permissions perms = new Permissions();
819	<	AdjustablePolicy() { }
819	>	AdjustablePolicy(Permission... permissions) {
820	>	for (Permission permission : permissions)
821	>	perms.add(permission);
822	>	}
823		void addPermission(Permission perm) { perms.add(perm); }
824		void clearPermissions() { perms = new Permissions(); }
825	<	public PermissionCollection getPermissions(CodeSource cs) {
826	<	return perms;
827	<	}
828	<	public PermissionCollection getPermissions(ProtectionDomain pd) {
829	<	return perms;
830	<	}
831	<	public boolean implies(ProtectionDomain pd, Permission p) {
832	<	return perms.implies(p);
833	<	}
834	<	public void refresh() {}
825	>	public PermissionCollection getPermissions(CodeSource cs) {
826	>	return perms;
827	>	}
828	>	public PermissionCollection getPermissions(ProtectionDomain pd) {
829	>	return perms;
830	>	}
831	>	public boolean implies(ProtectionDomain pd, Permission p) {
832	>	return perms.implies(p);
833	>	}
834	>	public void refresh() {}
835	>	public String toString() {
836	>	List<Permission> ps = new ArrayList<Permission>();
837	>	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
838	>	ps.add(e.nextElement());
839	>	return "AdjustablePolicy with permissions " + ps;
840	>	}
841		}
842
843	+	/**
844	+	* Returns a policy containing all the permissions we ever need.
845	+	*/
846	+	public static Policy permissivePolicy() {
847	+	return new AdjustablePolicy
848	+	// Permissions j.u.c. needs directly
849	+	(new RuntimePermission("modifyThread"),
850	+	new RuntimePermission("getClassLoader"),
851	+	new RuntimePermission("setContextClassLoader"),
852	+	// Permissions needed to change permissions!
853	+	new SecurityPermission("getPolicy"),
854	+	new SecurityPermission("setPolicy"),
855	+	new RuntimePermission("setSecurityManager"),
856	+	// Permissions needed by the junit test harness
857	+	new RuntimePermission("accessDeclaredMembers"),
858	+	new PropertyPermission("*", "read"),
859	+	new java.io.FilePermission("<<ALL FILES>>", "read"));
860	+	}
861
862	<	// Some convenient Runnable classes
862	>	/**
863	>	* Sleeps until the given time has elapsed.
864	>	* Throws AssertionFailedError if interrupted.
865	>	*/
866	>	void sleep(long millis) {
867	>	try {
868	>	delay(millis);
869	>	} catch (InterruptedException ie) {
870	>	AssertionFailedError afe =
871	>	new AssertionFailedError("Unexpected InterruptedException");
872	>	afe.initCause(ie);
873	>	throw afe;
874	>	}
875	>	}
876
877	<	static class NoOpRunnable implements Runnable {
878	<	public void run() {}
877	>	/**
878	>	* Spin-waits up to the specified number of milliseconds for the given
879	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
880	>	*/
881	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
882	>	long startTime = System.nanoTime();
883	>	for (;;) {
884	>	Thread.State s = thread.getState();
885	>	if (s == Thread.State.BLOCKED ||
886	>	s == Thread.State.WAITING ||
887	>	s == Thread.State.TIMED_WAITING)
888	>	return;
889	>	else if (s == Thread.State.TERMINATED)
890	>	fail("Unexpected thread termination");
891	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
892	>	threadAssertTrue(thread.isAlive());
893	>	return;
894	>	}
895	>	Thread.yield();
896	>	}
897		}
898
899	<	static class NoOpCallable implements Callable {
900	<	public Object call() { return Boolean.TRUE; }
899	>	/**
900	>	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
901	>	* state: BLOCKED, WAITING, or TIMED_WAITING.
902	>	*/
903	>	void waitForThreadToEnterWaitState(Thread thread) {
904	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
905		}
906
907	<	static final String TEST_STRING = "a test string";
907	>	/**
908	>	* Returns the number of milliseconds since time given by
909	>	* startNanoTime, which must have been previously returned from a
910	>	* call to {@link System.nanoTime()}.
911	>	*/
912	>	static long millisElapsedSince(long startNanoTime) {
913	>	return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
914	>	}
915
916	<	static class StringTask implements Callable<String> {
917	<	public String call() { return TEST_STRING; }
916	>	//     void assertTerminatesPromptly(long timeoutMillis, Runnable r) {
917	>	//         long startTime = System.nanoTime();
918	>	//         try {
919	>	//             r.run();
920	>	//         } catch (Throwable fail) { threadUnexpectedException(fail); }
921	>	//         if (millisElapsedSince(startTime) > timeoutMillis/2)
922	>	//             throw new AssertionFailedError("did not return promptly");
923	>	//     }
924	>
925	>	//     void assertTerminatesPromptly(Runnable r) {
926	>	//         assertTerminatesPromptly(LONG_DELAY_MS/2, r);
927	>	//     }
928	>
929	>	/**
930	>	* Checks that timed f.get() returns the expected value, and does not
931	>	* wait for the timeout to elapse before returning.
932	>	*/
933	>	<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
934	>	long startTime = System.nanoTime();
935	>	try {
936	>	assertEquals(expectedValue, f.get(timeoutMillis, MILLISECONDS));
937	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
938	>	if (millisElapsedSince(startTime) > timeoutMillis/2)
939	>	throw new AssertionFailedError("timed get did not return promptly");
940		}
941
942	<	static class NPETask implements Callable<String> {
943	<	public String call() { throw new NullPointerException(); }
942	>	<T> void checkTimedGet(Future<T> f, T expectedValue) {
943	>	checkTimedGet(f, expectedValue, LONG_DELAY_MS);
944		}
945
946	<	static class CallableOne implements Callable<Integer> {
947	<	public Integer call() { return one; }
946	>	/**
947	>	* Returns a new started daemon Thread running the given runnable.
948	>	*/
949	>	Thread newStartedThread(Runnable runnable) {
950	>	Thread t = new Thread(runnable);
951	>	t.setDaemon(true);
952	>	t.start();
953	>	return t;
954		}
955
956	<	class ShortRunnable implements Runnable {
957	<	public void run() {
958	<	try {
959	<	Thread.sleep(SHORT_DELAY_MS);
960	<	}
961	<	catch(Exception e) {
962	<	threadUnexpectedException();
956	>	/**
957	>	* Waits for the specified time (in milliseconds) for the thread
958	>	* to terminate (using {@link Thread#join(long)}), else interrupts
959	>	* the thread (in the hope that it may terminate later) and fails.
960	>	*/
961	>	void awaitTermination(Thread t, long timeoutMillis) {
962	>	try {
963	>	t.join(timeoutMillis);
964	>	} catch (InterruptedException ie) {
965	>	threadUnexpectedException(ie);
966	>	} finally {
967	>	if (t.getState() != Thread.State.TERMINATED) {
968	>	t.interrupt();
969	>	fail("Test timed out");
970		}
971		}
972		}
973
974	<	class ShortInterruptedRunnable implements Runnable {
975	<	public void run() {
974	>	/**
975	>	* Waits for LONG_DELAY_MS milliseconds for the thread to
976	>	* terminate (using {@link Thread#join(long)}), else interrupts
977	>	* the thread (in the hope that it may terminate later) and fails.
978	>	*/
979	>	void awaitTermination(Thread t) {
980	>	awaitTermination(t, LONG_DELAY_MS);
981	>	}
982	>
983	>	// Some convenient Runnable classes
984	>
985	>	public abstract class CheckedRunnable implements Runnable {
986	>	protected abstract void realRun() throws Throwable;
987	>
988	>	public final void run() {
989		try {
990	<	Thread.sleep(SHORT_DELAY_MS);
991	<	threadShouldThrow();
992	<	}
410	<	catch(InterruptedException success) {
990	>	realRun();
991	>	} catch (Throwable t) {
992	>	threadUnexpectedException(t);
993		}
994		}
995		}
996
997	<	class SmallRunnable implements Runnable {
998	<	public void run() {
997	>	public abstract class RunnableShouldThrow implements Runnable {
998	>	protected abstract void realRun() throws Throwable;
999	>
1000	>	final Class<?> exceptionClass;
1001	>
1002	>	<T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) {
1003	>	this.exceptionClass = exceptionClass;
1004	>	}
1005	>
1006	>	public final void run() {
1007		try {
1008	<	Thread.sleep(SMALL_DELAY_MS);
1009	<	}
1010	<	catch(Exception e) {
1011	<	threadUnexpectedException();
1008	>	realRun();
1009	>	threadShouldThrow(exceptionClass.getSimpleName());
1010	>	} catch (Throwable t) {
1011	>	if (! exceptionClass.isInstance(t))
1012	>	threadUnexpectedException(t);
1013		}
1014		}
1015		}
1016
1017	<	class SmallPossiblyInterruptedRunnable implements Runnable {
1018	<	public void run() {
1017	>	public abstract class ThreadShouldThrow extends Thread {
1018	>	protected abstract void realRun() throws Throwable;
1019	>
1020	>	final Class<?> exceptionClass;
1021	>
1022	>	<T extends Throwable> ThreadShouldThrow(Class<T> exceptionClass) {
1023	>	this.exceptionClass = exceptionClass;
1024	>	}
1025	>
1026	>	public final void run() {
1027		try {
1028	<	Thread.sleep(SMALL_DELAY_MS);
1029	<	}
1030	<	catch(Exception e) {
1028	>	realRun();
1029	>	threadShouldThrow(exceptionClass.getSimpleName());
1030	>	} catch (Throwable t) {
1031	>	if (! exceptionClass.isInstance(t))
1032	>	threadUnexpectedException(t);
1033		}
1034		}
1035		}
1036
1037	<	class SmallCallable implements Callable {
1038	<	public Object call() {
1037	>	public abstract class CheckedInterruptedRunnable implements Runnable {
1038	>	protected abstract void realRun() throws Throwable;
1039	>
1040	>	public final void run() {
1041		try {
1042	<	Thread.sleep(SMALL_DELAY_MS);
1043	<	}
1044	<	catch(Exception e) {
1045	<	threadUnexpectedException();
1042	>	realRun();
1043	>	threadShouldThrow("InterruptedException");
1044	>	} catch (InterruptedException success) {
1045	>	threadAssertFalse(Thread.interrupted());
1046	>	} catch (Throwable t) {
1047	>	threadUnexpectedException(t);
1048		}
444	–	return Boolean.TRUE;
1049		}
1050		}
1051
1052	<	class SmallInterruptedRunnable implements Runnable {
1053	<	public void run() {
1052	>	public abstract class CheckedCallable<T> implements Callable<T> {
1053	>	protected abstract T realCall() throws Throwable;
1054	>
1055	>	public final T call() {
1056		try {
1057	<	Thread.sleep(SMALL_DELAY_MS);
1058	<	threadShouldThrow();
1059	<	}
1060	<	catch(InterruptedException success) {
1057	>	return realCall();
1058	>	} catch (Throwable t) {
1059	>	threadUnexpectedException(t);
1060	>	return null;
1061		}
1062		}
1063		}
1064
1065	+	public abstract class CheckedInterruptedCallable<T>
1066	+	implements Callable<T> {
1067	+	protected abstract T realCall() throws Throwable;
1068
1069	<	class MediumRunnable implements Runnable {
461	<	public void run() {
1069	>	public final T call() {
1070		try {
1071	<	Thread.sleep(MEDIUM_DELAY_MS);
1072	<	}
1073	<	catch(Exception e) {
1074	<	threadUnexpectedException();
1071	>	T result = realCall();
1072	>	threadShouldThrow("InterruptedException");
1073	>	return result;
1074	>	} catch (InterruptedException success) {
1075	>	threadAssertFalse(Thread.interrupted());
1076	>	} catch (Throwable t) {
1077	>	threadUnexpectedException(t);
1078		}
1079	+	return null;
1080		}
1081		}
1082
1083	<	class MediumInterruptedRunnable implements Runnable {
1084	<	public void run() {
1083	>	public static class NoOpRunnable implements Runnable {
1084	>	public void run() {}
1085	>	}
1086	>
1087	>	public static class NoOpCallable implements Callable {
1088	>	public Object call() { return Boolean.TRUE; }
1089	>	}
1090	>
1091	>	public static final String TEST_STRING = "a test string";
1092	>
1093	>	public static class StringTask implements Callable<String> {
1094	>	public String call() { return TEST_STRING; }
1095	>	}
1096	>
1097	>	public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
1098	>	return new CheckedCallable<String>() {
1099	>	protected String realCall() {
1100	>	try {
1101	>	latch.await();
1102	>	} catch (InterruptedException quittingTime) {}
1103	>	return TEST_STRING;
1104	>	}};
1105	>	}
1106	>
1107	>	public Runnable awaiter(final CountDownLatch latch) {
1108	>	return new CheckedRunnable() {
1109	>	public void realRun() throws InterruptedException {
1110	>	await(latch);
1111	>	}};
1112	>	}
1113	>
1114	>	public void await(CountDownLatch latch) {
1115	>	try {
1116	>	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1117	>	} catch (Throwable t) {
1118	>	threadUnexpectedException(t);
1119	>	}
1120	>	}
1121	>
1122	>	public void await(Semaphore semaphore) {
1123	>	try {
1124	>	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1125	>	} catch (Throwable t) {
1126	>	threadUnexpectedException(t);
1127	>	}
1128	>	}
1129	>
1130	>	//     /**
1131	>	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1132	>	//      */
1133	>	//     public void await(AtomicBoolean flag) {
1134	>	//         await(flag, LONG_DELAY_MS);
1135	>	//     }
1136	>
1137	>	//     /**
1138	>	//      * Spin-waits up to the specified timeout until flag becomes true.
1139	>	//      */
1140	>	//     public void await(AtomicBoolean flag, long timeoutMillis) {
1141	>	//         long startTime = System.nanoTime();
1142	>	//         while (!flag.get()) {
1143	>	//             if (millisElapsedSince(startTime) > timeoutMillis)
1144	>	//                 throw new AssertionFailedError("timed out");
1145	>	//             Thread.yield();
1146	>	//         }
1147	>	//     }
1148	>
1149	>	public static class NPETask implements Callable<String> {
1150	>	public String call() { throw new NullPointerException(); }
1151	>	}
1152	>
1153	>	public static class CallableOne implements Callable<Integer> {
1154	>	public Integer call() { return one; }
1155	>	}
1156	>
1157	>	public class ShortRunnable extends CheckedRunnable {
1158	>	protected void realRun() throws Throwable {
1159	>	delay(SHORT_DELAY_MS);
1160	>	}
1161	>	}
1162	>
1163	>	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1164	>	protected void realRun() throws InterruptedException {
1165	>	delay(SHORT_DELAY_MS);
1166	>	}
1167	>	}
1168	>
1169	>	public class SmallRunnable extends CheckedRunnable {
1170	>	protected void realRun() throws Throwable {
1171	>	delay(SMALL_DELAY_MS);
1172	>	}
1173	>	}
1174	>
1175	>	public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1176	>	protected void realRun() {
1177		try {
1178	<	Thread.sleep(MEDIUM_DELAY_MS);
1179	<	threadShouldThrow();
476	<	}
477	<	catch(InterruptedException success) {
478	<	}
1178	>	delay(SMALL_DELAY_MS);
1179	>	} catch (InterruptedException ok) {}
1180		}
1181		}
1182
1183	<	class MediumPossiblyInterruptedRunnable implements Runnable {
1184	<	public void run() {
1183	>	public class SmallCallable extends CheckedCallable {
1184	>	protected Object realCall() throws InterruptedException {
1185	>	delay(SMALL_DELAY_MS);
1186	>	return Boolean.TRUE;
1187	>	}
1188	>	}
1189	>
1190	>	public class MediumRunnable extends CheckedRunnable {
1191	>	protected void realRun() throws Throwable {
1192	>	delay(MEDIUM_DELAY_MS);
1193	>	}
1194	>	}
1195	>
1196	>	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1197	>	protected void realRun() throws InterruptedException {
1198	>	delay(MEDIUM_DELAY_MS);
1199	>	}
1200	>	}
1201	>
1202	>	public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1203	>	return new CheckedRunnable() {
1204	>	protected void realRun() {
1205	>	try {
1206	>	delay(timeoutMillis);
1207	>	} catch (InterruptedException ok) {}
1208	>	}};
1209	>	}
1210	>
1211	>	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1212	>	protected void realRun() {
1213		try {
1214	<	Thread.sleep(MEDIUM_DELAY_MS);
1215	<	}
487	<	catch(InterruptedException success) {
488	<	}
1214	>	delay(MEDIUM_DELAY_MS);
1215	>	} catch (InterruptedException ok) {}
1216		}
1217		}
1218
1219	<	class LongPossiblyInterruptedRunnable implements Runnable {
1220	<	public void run() {
1219	>	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1220	>	protected void realRun() {
1221		try {
1222	<	Thread.sleep(LONG_DELAY_MS);
1223	<	}
497	<	catch(InterruptedException success) {
498	<	}
1222	>	delay(LONG_DELAY_MS);
1223	>	} catch (InterruptedException ok) {}
1224		}
1225		}
1226
1227		/**
1228		* For use as ThreadFactory in constructors
1229		*/
1230	<	static class SimpleThreadFactory implements ThreadFactory{
1231	<	public Thread newThread(Runnable r){
1230	>	public static class SimpleThreadFactory implements ThreadFactory {
1231	>	public Thread newThread(Runnable r) {
1232		return new Thread(r);
1233	<	}
1233	>	}
1234		}
1235
1236	<	static class TrackedShortRunnable implements Runnable {
1237	<	volatile boolean done = false;
1236	>	public interface TrackedRunnable extends Runnable {
1237	>	boolean isDone();
1238	>	}
1239	>
1240	>	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1241	>	return new TrackedRunnable() {
1242	>	private volatile boolean done = false;
1243	>	public boolean isDone() { return done; }
1244	>	public void run() {
1245	>	try {
1246	>	delay(timeoutMillis);
1247	>	done = true;
1248	>	} catch (InterruptedException ok) {}
1249	>	}
1250	>	};
1251	>	}
1252	>
1253	>	public static class TrackedShortRunnable implements Runnable {
1254	>	public volatile boolean done = false;
1255		public void run() {
1256		try {
1257	<	Thread.sleep(SMALL_DELAY_MS);
1257	>	delay(SHORT_DELAY_MS);
1258		done = true;
1259	<	} catch(Exception e){
518	<	}
1259	>	} catch (InterruptedException ok) {}
1260		}
1261		}
1262
1263	<	static class TrackedMediumRunnable implements Runnable {
1264	<	volatile boolean done = false;
1263	>	public static class TrackedSmallRunnable implements Runnable {
1264	>	public volatile boolean done = false;
1265		public void run() {
1266		try {
1267	<	Thread.sleep(MEDIUM_DELAY_MS);
1267	>	delay(SMALL_DELAY_MS);
1268		done = true;
1269	<	} catch(Exception e){
529	<	}
1269	>	} catch (InterruptedException ok) {}
1270		}
1271		}
1272
1273	<	static class TrackedLongRunnable implements Runnable {
1274	<	volatile boolean done = false;
1273	>	public static class TrackedMediumRunnable implements Runnable {
1274	>	public volatile boolean done = false;
1275		public void run() {
1276		try {
1277	<	Thread.sleep(LONG_DELAY_MS);
1277	>	delay(MEDIUM_DELAY_MS);
1278		done = true;
1279	<	} catch(Exception e){
540	<	}
1279	>	} catch (InterruptedException ok) {}
1280		}
1281		}
1282
1283	<	static class TrackedNoOpRunnable implements Runnable {
1284	<	volatile boolean done = false;
1283	>	public static class TrackedLongRunnable implements Runnable {
1284	>	public volatile boolean done = false;
1285	>	public void run() {
1286	>	try {
1287	>	delay(LONG_DELAY_MS);
1288	>	done = true;
1289	>	} catch (InterruptedException ok) {}
1290	>	}
1291	>	}
1292	>
1293	>	public static class TrackedNoOpRunnable implements Runnable {
1294	>	public volatile boolean done = false;
1295		public void run() {
1296		done = true;
1297		}
1298		}
1299
1300	<	static class TrackedCallable implements Callable {
1301	<	volatile boolean done = false;
1300	>	public static class TrackedCallable implements Callable {
1301	>	public volatile boolean done = false;
1302		public Object call() {
1303		try {
1304	<	Thread.sleep(SMALL_DELAY_MS);
1304	>	delay(SMALL_DELAY_MS);
1305		done = true;
1306	<	} catch(Exception e){
558	<	}
1306	>	} catch (InterruptedException ok) {}
1307		return Boolean.TRUE;
1308		}
1309		}
1310
1311	+	/**
1312	+	* Analog of CheckedRunnable for RecursiveAction
1313	+	*/
1314	+	public abstract class CheckedRecursiveAction extends RecursiveAction {
1315	+	protected abstract void realCompute() throws Throwable;
1316	+
1317	+	@Override protected final void compute() {
1318	+	try {
1319	+	realCompute();
1320	+	} catch (Throwable t) {
1321	+	threadUnexpectedException(t);
1322	+	}
1323	+	}
1324	+	}
1325	+
1326	+	/**
1327	+	* Analog of CheckedCallable for RecursiveTask
1328	+	*/
1329	+	public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1330	+	protected abstract T realCompute() throws Throwable;
1331	+
1332	+	@Override protected final T compute() {
1333	+	try {
1334	+	return realCompute();
1335	+	} catch (Throwable t) {
1336	+	threadUnexpectedException(t);
1337	+	return null;
1338	+	}
1339	+	}
1340	+	}
1341
1342		/**
1343		* For use as RejectedExecutionHandler in constructors
1344		*/
1345	<	static class NoOpREHandler implements RejectedExecutionHandler{
1346	<	public void rejectedExecution(Runnable r, ThreadPoolExecutor executor){}
1345	>	public static class NoOpREHandler implements RejectedExecutionHandler {
1346	>	public void rejectedExecution(Runnable r,
1347	>	ThreadPoolExecutor executor) {}
1348	>	}
1349	>
1350	>	/**
1351	>	* A CyclicBarrier that uses timed await and fails with
1352	>	* AssertionFailedErrors instead of throwing checked exceptions.
1353	>	*/
1354	>	public class CheckedBarrier extends CyclicBarrier {
1355	>	public CheckedBarrier(int parties) { super(parties); }
1356	>
1357	>	public int await() {
1358	>	try {
1359	>	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1360	>	} catch (TimeoutException e) {
1361	>	throw new AssertionFailedError("timed out");
1362	>	} catch (Exception e) {
1363	>	AssertionFailedError afe =
1364	>	new AssertionFailedError("Unexpected exception: " + e);
1365	>	afe.initCause(e);
1366	>	throw afe;
1367	>	}
1368	>	}
1369	>	}
1370	>
1371	>	void checkEmpty(BlockingQueue q) {
1372	>	try {
1373	>	assertTrue(q.isEmpty());
1374	>	assertEquals(0, q.size());
1375	>	assertNull(q.peek());
1376	>	assertNull(q.poll());
1377	>	assertNull(q.poll(0, MILLISECONDS));
1378	>	assertEquals(q.toString(), "[]");
1379	>	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1380	>	assertFalse(q.iterator().hasNext());
1381	>	try {
1382	>	q.element();
1383	>	shouldThrow();
1384	>	} catch (NoSuchElementException success) {}
1385	>	try {
1386	>	q.iterator().next();
1387	>	shouldThrow();
1388	>	} catch (NoSuchElementException success) {}
1389	>	try {
1390	>	q.remove();
1391	>	shouldThrow();
1392	>	} catch (NoSuchElementException success) {}
1393	>	} catch (InterruptedException ie) {
1394	>	threadUnexpectedException(ie);
1395	>	}
1396	>	}
1397	>
1398	>	void assertSerialEquals(Object x, Object y) {
1399	>	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1400	>	}
1401	>
1402	>	void assertNotSerialEquals(Object x, Object y) {
1403	>	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1404	>	}
1405	>
1406	>	byte[] serialBytes(Object o) {
1407	>	try {
1408	>	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1409	>	ObjectOutputStream oos = new ObjectOutputStream(bos);
1410	>	oos.writeObject(o);
1411	>	oos.flush();
1412	>	oos.close();
1413	>	return bos.toByteArray();
1414	>	} catch (Throwable t) {
1415	>	threadUnexpectedException(t);
1416	>	return new byte[0];
1417	>	}
1418	>	}
1419	>
1420	>	@SuppressWarnings("unchecked")
1421	>	<T> T serialClone(T o) {
1422	>	try {
1423	>	ObjectInputStream ois = new ObjectInputStream
1424	>	(new ByteArrayInputStream(serialBytes(o)));
1425	>	T clone = (T) ois.readObject();
1426	>	assertSame(o.getClass(), clone.getClass());
1427	>	return clone;
1428	>	} catch (Throwable t) {
1429	>	threadUnexpectedException(t);
1430	>	return null;
1431	>	}
1432	>	}
1433	>
1434	>	public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1435	>	Runnable... throwingActions) {
1436	>	for (Runnable throwingAction : throwingActions) {
1437	>	boolean threw = false;
1438	>	try { throwingAction.run(); }
1439	>	catch (Throwable t) {
1440	>	threw = true;
1441	>	if (!expectedExceptionClass.isInstance(t)) {
1442	>	AssertionFailedError afe =
1443	>	new AssertionFailedError
1444	>	("Expected " + expectedExceptionClass.getName() +
1445	>	", got " + t.getClass().getName());
1446	>	afe.initCause(t);
1447	>	threadUnexpectedException(afe);
1448	>	}
1449	>	}
1450	>	if (!threw)
1451	>	shouldThrow(expectedExceptionClass.getName());
1452	>	}
1453		}
570	–
571	–
1454		}

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