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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.18 by dl, Fri Jan 9 15:39:10 2004 UTC vs.
Revision 1.130 by jsr166, Tue Apr 21 05:00:23 2015 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.*;
11	<	import java.util.concurrent.*;
12	<	import java.io.*;
13	<	import java.security.*;
9	>	import static java.util.concurrent.TimeUnit.MILLISECONDS;
10	>	import static java.util.concurrent.TimeUnit.NANOSECONDS;
11	>
12	>	import java.io.ByteArrayInputStream;
13	>	import java.io.ByteArrayOutputStream;
14	>	import java.io.ObjectInputStream;
15	>	import java.io.ObjectOutputStream;
16	>	import java.lang.management.ManagementFactory;
17	>	import java.lang.management.ThreadInfo;
18	>	import java.lang.reflect.Method;
19	>	import java.security.CodeSource;
20	>	import java.security.Permission;
21	>	import java.security.PermissionCollection;
22	>	import java.security.Permissions;
23	>	import java.security.Policy;
24	>	import java.security.ProtectionDomain;
25	>	import java.security.SecurityPermission;
26	>	import java.util.ArrayList;
27	>	import java.util.Arrays;
28	>	import java.util.Date;
29	>	import java.util.Enumeration;
30	>	import java.util.Iterator;
31	>	import java.util.List;
32	>	import java.util.NoSuchElementException;
33	>	import java.util.PropertyPermission;
34	>	import java.util.concurrent.BlockingQueue;
35	>	import java.util.concurrent.Callable;
36	>	import java.util.concurrent.CountDownLatch;
37	>	import java.util.concurrent.CyclicBarrier;
38	>	import java.util.concurrent.ExecutorService;
39	>	import java.util.concurrent.Future;
40	>	import java.util.concurrent.RecursiveAction;
41	>	import java.util.concurrent.RecursiveTask;
42	>	import java.util.concurrent.RejectedExecutionHandler;
43	>	import java.util.concurrent.Semaphore;
44	>	import java.util.concurrent.ThreadFactory;
45	>	import java.util.concurrent.ThreadPoolExecutor;
46	>	import java.util.concurrent.TimeoutException;
47	>	import java.util.concurrent.atomic.AtomicReference;
48	>	import java.util.regex.Pattern;
49	>
50	>	import junit.framework.AssertionFailedError;
51	>	import junit.framework.Test;
52	>	import junit.framework.TestCase;
53	>	import junit.framework.TestSuite;
54
55		/**
56		* Base class for JSR166 Junit TCK tests.  Defines some constants,
57		* utility methods and classes, as well as a simple framework for
58		* helping to make sure that assertions failing in generated threads
59		* cause the associated test that generated them to itself fail (which
60	<	* JUnit doe not otherwise arrange).  The rules for creating such
60	>	* JUnit does not otherwise arrange).  The rules for creating such
61		* tests are:
62		*
63		* <ol>
64		*
65		* <li> All assertions in code running in generated threads must use
66	<	* the forms {@link #threadFail} , {@link #threadAssertTrue} {@link
66	>	* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link
67		* #threadAssertEquals}, or {@link #threadAssertNull}, (not
68	<	* <tt>fail</tt>, <tt>assertTrue</tt>, etc.) It is OK (but not
68	>	* {@code fail}, {@code assertTrue}, etc.) It is OK (but not
69		* particularly recommended) for other code to use these forms too.
70		* Only the most typically used JUnit assertion methods are defined
71		* this way, but enough to live with.</li>
72		*
73		* <li> If you override {@link #setUp} or {@link #tearDown}, make sure
74	<	* to invoke <tt>super.setUp</tt> and <tt>super.tearDown</tt> within
74	>	* to invoke {@code super.setUp} and {@code super.tearDown} within
75		* them. These methods are used to clear and check for thread
76		* assertion failures.</li>
77		*
78	<	* <li>All delays and timeouts must use one of the constants <tt>
79	<	* SHORT_DELAY_MS</tt>, <tt> SMALL_DELAY_MS</tt>, <tt> MEDIUM_DELAY_MS</tt>,
80	<	* <tt> LONG_DELAY_MS</tt>. The idea here is that a SHORT is always
78	>	* <li>All delays and timeouts must use one of the constants {@code
79	>	* SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS},
80	>	* {@code LONG_DELAY_MS}. The idea here is that a SHORT is always
81		* discriminable from zero time, and always allows enough time for the
82		* small amounts of computation (creating a thread, calling a few
83		* methods, etc) needed to reach a timeout point. Similarly, a SMALL
84		* is always discriminable as larger than SHORT and smaller than
85		* MEDIUM.  And so on. These constants are set to conservative values,
86		* but even so, if there is ever any doubt, they can all be increased
87	<	* in one spot to rerun tests on slower platforms</li>
87	>	* in one spot to rerun tests on slower platforms.</li>
88		*
89		* <li> All threads generated must be joined inside each test case
90	<	* method (or <tt>fail</tt> to do so) before returning from the
91	<	* method. The <tt> joinPool</tt> method can be used to do this when
90	>	* method (or {@code fail} to do so) before returning from the
91	>	* method. The {@code joinPool} method can be used to do this when
92		* using Executors.</li>
93		*
94		* </ol>
95		*
96	<	* <p> <b>Other notes</b>
96	>	* <p><b>Other notes</b>
97		* <ul>
98		*
99		* <li> Usually, there is one testcase method per JSR166 method
#	Line 63 | Line 103 | import java.security.*;
103		* "normal" behaviors differ significantly. And sometimes testcases
104		* cover multiple methods when they cannot be tested in
105		* isolation.</li>
106	<	*
106	>	*
107		* <li> The documentation style for testcases is to provide as javadoc
108		* a simple sentence or two describing the property that the testcase
109		* method purports to test. The javadocs do not say anything about how
#	Line 80 | Line 120 | import java.security.*;
120		* any particular package to simplify things for people integrating
121		* them in TCK test suites.</li>
122		*
123	<	* <li> As a convenience, the <tt>main</tt> of this class (JSR166TestCase)
123	>	* <li> As a convenience, the {@code main} of this class (JSR166TestCase)
124		* runs all JSR166 unit tests.</li>
125		*
126		* </ul>
127		*/
128		public class JSR166TestCase extends TestCase {
129	+	private static final boolean useSecurityManager =
130	+	Boolean.getBoolean("jsr166.useSecurityManager");
131	+
132	+	protected static final boolean expensiveTests =
133	+	Boolean.getBoolean("jsr166.expensiveTests");
134	+
135	+	/**
136	+	* If true, also run tests that are not part of the official tck
137	+	* because they test unspecified implementation details.
138	+	*/
139	+	protected static final boolean testImplementationDetails =
140	+	Boolean.getBoolean("jsr166.testImplementationDetails");
141	+
142	+	/**
143	+	* If true, report on stdout all "slow" tests, that is, ones that
144	+	* take more than profileThreshold milliseconds to execute.
145	+	*/
146	+	private static final boolean profileTests =
147	+	Boolean.getBoolean("jsr166.profileTests");
148	+
149	+	/**
150	+	* The number of milliseconds that tests are permitted for
151	+	* execution without being reported, when profileTests is set.
152	+	*/
153	+	private static final long profileThreshold =
154	+	Long.getLong("jsr166.profileThreshold", 100);
155	+
156	+	/**
157	+	* The number of repetitions per test (for tickling rare bugs).
158	+	*/
159	+	private static final int runsPerTest =
160	+	Integer.getInteger("jsr166.runsPerTest", 1);
161	+
162		/**
163	<	* Runs all JSR166 unit tests using junit.textui.TestRunner
164	<	*/
165	<	public static void main (String[] args) {
166	<	int iters = 1;
167	<	if (args.length > 0)
168	<	iters = Integer.parseInt(args[0]);
163	>	* A filter for tests to run, matching strings of the form
164	>	* methodName(className), e.g. "testInvokeAll5(ForkJoinPoolTest)"
165	>	* Usefully combined with jsr166.runsPerTest.
166	>	*/
167	>	private static final Pattern methodFilter = methodFilter();
168	>
169	>	private static Pattern methodFilter() {
170	>	String regex = System.getProperty("jsr166.methodFilter");
171	>	return (regex == null) ? null : Pattern.compile(regex);
172	>	}
173	>
174	>	protected void runTest() throws Throwable {
175	>	if (methodFilter == null
176	>	|| methodFilter.matcher(toString()).find()) {
177	>	for (int i = 0; i < runsPerTest; i++) {
178	>	if (profileTests)
179	>	runTestProfiled();
180	>	else
181	>	super.runTest();
182	>	}
183	>	}
184	>	}
185	>
186	>	protected void runTestProfiled() throws Throwable {
187	>	// Warmup run, notably to trigger all needed classloading.
188	>	super.runTest();
189	>	long t0 = System.nanoTime();
190	>	try {
191	>	super.runTest();
192	>	} finally {
193	>	long elapsedMillis = millisElapsedSince(t0);
194	>	if (elapsedMillis >= profileThreshold)
195	>	System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
196	>	}
197	>	}
198	>
199	>	/**
200	>	* Runs all JSR166 unit tests using junit.textui.TestRunner.
201	>	* Optional command line arg provides the number of iterations to
202	>	* repeat running the tests.
203	>	*/
204	>	public static void main(String[] args) {
205	>	if (useSecurityManager) {
206	>	System.err.println("Setting a permissive security manager");
207	>	Policy.setPolicy(permissivePolicy());
208	>	System.setSecurityManager(new SecurityManager());
209	>	}
210	>	int iters = (args.length == 0) ? 1 : Integer.parseInt(args[0]);
211	>
212		Test s = suite();
213	<	for (int i = 0; i < iters; ++i)
214	<	junit.textui.TestRunner.run (s);
213	>	for (int i = 0; i < iters; ++i) {
214	>	junit.textui.TestRunner.run(s);
215	>	System.gc();
216	>	System.runFinalization();
217	>	}
218	>	System.exit(0);
219	>	}
220	>
221	>	public static TestSuite newTestSuite(Object... suiteOrClasses) {
222	>	TestSuite suite = new TestSuite();
223	>	for (Object suiteOrClass : suiteOrClasses) {
224	>	if (suiteOrClass instanceof TestSuite)
225	>	suite.addTest((TestSuite) suiteOrClass);
226	>	else if (suiteOrClass instanceof Class)
227	>	suite.addTest(new TestSuite((Class<?>) suiteOrClass));
228	>	else
229	>	throw new ClassCastException("not a test suite or class");
230	>	}
231	>	return suite;
232	>	}
233	>
234	>	public static void addNamedTestClasses(TestSuite suite,
235	>	String... testClassNames) {
236	>	for (String testClassName : testClassNames) {
237	>	try {
238	>	Class<?> testClass = Class.forName(testClassName);
239	>	Method m = testClass.getDeclaredMethod("suite",
240	>	new Class<?>[0]);
241	>	suite.addTest(newTestSuite((Test)m.invoke(null)));
242	>	} catch (Exception e) {
243	>	throw new Error("Missing test class", e);
244	>	}
245	>	}
246	>	}
247	>
248	>	public static final double JAVA_CLASS_VERSION;
249	>	public static final String JAVA_SPECIFICATION_VERSION;
250	>	static {
251	>	try {
252	>	JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
253	>	new java.security.PrivilegedAction<Double>() {
254	>	public Double run() {
255	>	return Double.valueOf(System.getProperty("java.class.version"));}});
256	>	JAVA_SPECIFICATION_VERSION = java.security.AccessController.doPrivileged(
257	>	new java.security.PrivilegedAction<String>() {
258	>	public String run() {
259	>	return System.getProperty("java.specification.version");}});
260	>	} catch (Throwable t) {
261	>	throw new Error(t);
262	>	}
263		}
264
265	+	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
266	+	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
267	+	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
268	+	public static boolean atLeastJava9() { return JAVA_CLASS_VERSION >= 53.0; }
269	+
270		/**
271	<	* Collects all JSR166 unit tests as one suite
272	<	*/
273	<	public static Test suite ( ) {
274	<	TestSuite suite = new TestSuite("JSR166 Unit Tests");
275	<
276	<	suite.addTest(new TestSuite(AbstractExecutorServiceTest.class));
277	<	suite.addTest(new TestSuite(AbstractQueuedSynchronizerTest.class));
278	<	suite.addTest(new TestSuite(ArrayBlockingQueueTest.class));
279	<	suite.addTest(new TestSuite(AtomicBooleanTest.class));
280	<	suite.addTest(new TestSuite(AtomicIntegerArrayTest.class));
281	<	suite.addTest(new TestSuite(AtomicIntegerFieldUpdaterTest.class));
282	<	suite.addTest(new TestSuite(AtomicIntegerTest.class));
283	<	suite.addTest(new TestSuite(AtomicLongArrayTest.class));
284	<	suite.addTest(new TestSuite(AtomicLongFieldUpdaterTest.class));
285	<	suite.addTest(new TestSuite(AtomicLongTest.class));
286	<	suite.addTest(new TestSuite(AtomicMarkableReferenceTest.class));
287	<	suite.addTest(new TestSuite(AtomicReferenceArrayTest.class));
288	<	suite.addTest(new TestSuite(AtomicReferenceFieldUpdaterTest.class));
289	<	suite.addTest(new TestSuite(AtomicReferenceTest.class));
290	<	suite.addTest(new TestSuite(AtomicStampedReferenceTest.class));
291	<	suite.addTest(new TestSuite(ConcurrentHashMapTest.class));
292	<	suite.addTest(new TestSuite(ConcurrentLinkedQueueTest.class));
293	<	suite.addTest(new TestSuite(CopyOnWriteArrayListTest.class));
294	<	suite.addTest(new TestSuite(CopyOnWriteArraySetTest.class));
295	<	suite.addTest(new TestSuite(CountDownLatchTest.class));
296	<	suite.addTest(new TestSuite(CyclicBarrierTest.class));
297	<	suite.addTest(new TestSuite(DelayQueueTest.class));
298	<	suite.addTest(new TestSuite(ExchangerTest.class));
299	<	suite.addTest(new TestSuite(ExecutorsTest.class));
300	<	suite.addTest(new TestSuite(ExecutorCompletionServiceTest.class));
301	<	suite.addTest(new TestSuite(FutureTaskTest.class));
302	<	suite.addTest(new TestSuite(LinkedBlockingQueueTest.class));
303	<	suite.addTest(new TestSuite(LinkedListTest.class));
304	<	suite.addTest(new TestSuite(LockSupportTest.class));
305	<	suite.addTest(new TestSuite(PriorityBlockingQueueTest.class));
306	<	suite.addTest(new TestSuite(PriorityQueueTest.class));
307	<	suite.addTest(new TestSuite(ReentrantLockTest.class));
308	<	suite.addTest(new TestSuite(ReentrantReadWriteLockTest.class));
309	<	suite.addTest(new TestSuite(ScheduledExecutorTest.class));
310	<	suite.addTest(new TestSuite(SemaphoreTest.class));
311	<	suite.addTest(new TestSuite(SynchronousQueueTest.class));
312	<	suite.addTest(new TestSuite(SystemTest.class));
313	<	suite.addTest(new TestSuite(ThreadLocalTest.class));
314	<	suite.addTest(new TestSuite(ThreadPoolExecutorTest.class));
315	<	suite.addTest(new TestSuite(ThreadTest.class));
316	<	suite.addTest(new TestSuite(TimeUnitTest.class));
317	<
271	>	* Collects all JSR166 unit tests as one suite.
272	>	*/
273	>	public static Test suite() {
274	>	// Java7+ test classes
275	>	TestSuite suite = newTestSuite(
276	>	ForkJoinPoolTest.suite(),
277	>	ForkJoinTaskTest.suite(),
278	>	RecursiveActionTest.suite(),
279	>	RecursiveTaskTest.suite(),
280	>	LinkedTransferQueueTest.suite(),
281	>	PhaserTest.suite(),
282	>	ThreadLocalRandomTest.suite(),
283	>	AbstractExecutorServiceTest.suite(),
284	>	AbstractQueueTest.suite(),
285	>	AbstractQueuedSynchronizerTest.suite(),
286	>	AbstractQueuedLongSynchronizerTest.suite(),
287	>	ArrayBlockingQueueTest.suite(),
288	>	ArrayDequeTest.suite(),
289	>	AtomicBooleanTest.suite(),
290	>	AtomicIntegerArrayTest.suite(),
291	>	AtomicIntegerFieldUpdaterTest.suite(),
292	>	AtomicIntegerTest.suite(),
293	>	AtomicLongArrayTest.suite(),
294	>	AtomicLongFieldUpdaterTest.suite(),
295	>	AtomicLongTest.suite(),
296	>	AtomicMarkableReferenceTest.suite(),
297	>	AtomicReferenceArrayTest.suite(),
298	>	AtomicReferenceFieldUpdaterTest.suite(),
299	>	AtomicReferenceTest.suite(),
300	>	AtomicStampedReferenceTest.suite(),
301	>	ConcurrentHashMapTest.suite(),
302	>	ConcurrentLinkedDequeTest.suite(),
303	>	ConcurrentLinkedQueueTest.suite(),
304	>	ConcurrentSkipListMapTest.suite(),
305	>	ConcurrentSkipListSubMapTest.suite(),
306	>	ConcurrentSkipListSetTest.suite(),
307	>	ConcurrentSkipListSubSetTest.suite(),
308	>	CopyOnWriteArrayListTest.suite(),
309	>	CopyOnWriteArraySetTest.suite(),
310	>	CountDownLatchTest.suite(),
311	>	CyclicBarrierTest.suite(),
312	>	DelayQueueTest.suite(),
313	>	EntryTest.suite(),
314	>	ExchangerTest.suite(),
315	>	ExecutorsTest.suite(),
316	>	ExecutorCompletionServiceTest.suite(),
317	>	FutureTaskTest.suite(),
318	>	LinkedBlockingDequeTest.suite(),
319	>	LinkedBlockingQueueTest.suite(),
320	>	LinkedListTest.suite(),
321	>	LockSupportTest.suite(),
322	>	PriorityBlockingQueueTest.suite(),
323	>	PriorityQueueTest.suite(),
324	>	ReentrantLockTest.suite(),
325	>	ReentrantReadWriteLockTest.suite(),
326	>	ScheduledExecutorTest.suite(),
327	>	ScheduledExecutorSubclassTest.suite(),
328	>	SemaphoreTest.suite(),
329	>	SynchronousQueueTest.suite(),
330	>	SystemTest.suite(),
331	>	ThreadLocalTest.suite(),
332	>	ThreadPoolExecutorTest.suite(),
333	>	ThreadPoolExecutorSubclassTest.suite(),
334	>	ThreadTest.suite(),
335	>	TimeUnitTest.suite(),
336	>	TreeMapTest.suite(),
337	>	TreeSetTest.suite(),
338	>	TreeSubMapTest.suite(),
339	>	TreeSubSetTest.suite());
340	>
341	>	// Java8+ test classes
342	>	if (atLeastJava8()) {
343	>	String[] java8TestClassNames = {
344	>	"Atomic8Test",
345	>	"CompletableFutureTest",
346	>	"ConcurrentHashMap8Test",
347	>	"CountedCompleterTest",
348	>	"DoubleAccumulatorTest",
349	>	"DoubleAdderTest",
350	>	"ForkJoinPool8Test",
351	>	"ForkJoinTask8Test",
352	>	"LongAccumulatorTest",
353	>	"LongAdderTest",
354	>	"SplittableRandomTest",
355	>	"StampedLockTest",
356	>	"ThreadLocalRandom8Test",
357	>	};
358	>	addNamedTestClasses(suite, java8TestClassNames);
359	>	}
360	>
361	>	// Java9+ test classes
362	>	if (atLeastJava9()) {
363	>	String[] java9TestClassNames = {
364	>	"ThreadPoolExecutor9Test",
365	>	};
366	>	addNamedTestClasses(suite, java9TestClassNames);
367	>	}
368	>
369		return suite;
370		}
371
372	+	// Delays for timing-dependent tests, in milliseconds.
373
374		public static long SHORT_DELAY_MS;
375		public static long SMALL_DELAY_MS;
376		public static long MEDIUM_DELAY_MS;
377		public static long LONG_DELAY_MS;
378
158	–
379		/**
380	<	* Return the shortest timed delay. This could
380	>	* Returns the shortest timed delay. This could
381		* be reimplemented to use for example a Property.
382	<	*/
382	>	*/
383		protected long getShortDelay() {
384	<	return 10;
384	>	return 50;
385		}
386
167	–
387		/**
388	<	* Set delays as multiples of SHORT_DELAY.
388	>	* Sets delays as multiples of SHORT_DELAY.
389		*/
390	<	protected  void setDelays() {
390	>	protected void setDelays() {
391		SHORT_DELAY_MS = getShortDelay();
392	<	SMALL_DELAY_MS = SHORT_DELAY_MS * 5;
392	>	SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
393		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
394	<	LONG_DELAY_MS = SHORT_DELAY_MS * 50;
394	>	LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
395		}
396
397		/**
398	<	* Flag set true if any threadAssert methods fail
398	>	* Returns a timeout in milliseconds to be used in tests that
399	>	* verify that operations block or time out.
400		*/
401	<	volatile boolean threadFailed;
401	>	long timeoutMillis() {
402	>	return SHORT_DELAY_MS / 4;
403	>	}
404
405		/**
406	<	* Initialize test to indicate that no thread assertions have failed
406	>	* Returns a new Date instance representing a time delayMillis
407	>	* milliseconds in the future.
408		*/
409	<	public void setUp() {
409	>	Date delayedDate(long delayMillis) {
410	>	return new Date(System.currentTimeMillis() + delayMillis);
411	>	}
412	>
413	>	/**
414	>	* The first exception encountered if any threadAssertXXX method fails.
415	>	*/
416	>	private final AtomicReference<Throwable> threadFailure
417	>	= new AtomicReference<Throwable>(null);
418	>
419	>	/**
420	>	* Records an exception so that it can be rethrown later in the test
421	>	* harness thread, triggering a test case failure.  Only the first
422	>	* failure is recorded; subsequent calls to this method from within
423	>	* the same test have no effect.
424	>	*/
425	>	public void threadRecordFailure(Throwable t) {
426	>	threadFailure.compareAndSet(null, t);
427	>	}
428	>
429	>	public void setUp() {
430		setDelays();
188	–	threadFailed = false;
431		}
432
433		/**
434	<	* Trigger test case failure if any thread assertions have failed
434	>	* Extra checks that get done for all test cases.
435	>	*
436	>	* Triggers test case failure if any thread assertions have failed,
437	>	* by rethrowing, in the test harness thread, any exception recorded
438	>	* earlier by threadRecordFailure.
439	>	*
440	>	* Triggers test case failure if interrupt status is set in the main thread.
441	>	*/
442	>	public void tearDown() throws Exception {
443	>	Throwable t = threadFailure.getAndSet(null);
444	>	if (t != null) {
445	>	if (t instanceof Error)
446	>	throw (Error) t;
447	>	else if (t instanceof RuntimeException)
448	>	throw (RuntimeException) t;
449	>	else if (t instanceof Exception)
450	>	throw (Exception) t;
451	>	else {
452	>	AssertionFailedError afe =
453	>	new AssertionFailedError(t.toString());
454	>	afe.initCause(t);
455	>	throw afe;
456	>	}
457	>	}
458	>
459	>	if (Thread.interrupted())
460	>	throw new AssertionFailedError("interrupt status set in main thread");
461	>
462	>	checkForkJoinPoolThreadLeaks();
463	>	}
464	>
465	>	/**
466	>	* Finds missing try { ... } finally { joinPool(e); }
467		*/
468	<	public void tearDown() {
469	<	assertFalse(threadFailed);
468	>	void checkForkJoinPoolThreadLeaks() throws InterruptedException {
469	>	Thread[] survivors = new Thread[5];
470	>	int count = Thread.enumerate(survivors);
471	>	for (int i = 0; i < count; i++) {
472	>	Thread thread = survivors[i];
473	>	String name = thread.getName();
474	>	if (name.startsWith("ForkJoinPool-")) {
475	>	// give thread some time to terminate
476	>	thread.join(LONG_DELAY_MS);
477	>	if (!thread.isAlive()) continue;
478	>	thread.stop();
479	>	throw new AssertionFailedError
480	>	(String.format("Found leaked ForkJoinPool thread test=%s thread=%s%n",
481	>	toString(), name));
482	>	}
483	>	}
484		}
485
486		/**
487	<	* Fail, also setting status to indicate current testcase should fail
488	<	*/
487	>	* Just like fail(reason), but additionally recording (using
488	>	* threadRecordFailure) any AssertionFailedError thrown, so that
489	>	* the current testcase will fail.
490	>	*/
491		public void threadFail(String reason) {
492	<	threadFailed = true;
493	<	fail(reason);
492	>	try {
493	>	fail(reason);
494	>	} catch (AssertionFailedError t) {
495	>	threadRecordFailure(t);
496	>	fail(reason);
497	>	}
498		}
499
500		/**
501	<	* If expression not true, set status to indicate current testcase
502	<	* should fail
503	<	*/
501	>	* Just like assertTrue(b), but additionally recording (using
502	>	* threadRecordFailure) any AssertionFailedError thrown, so that
503	>	* the current testcase will fail.
504	>	*/
505		public void threadAssertTrue(boolean b) {
506	<	if (!b) {
212	<	threadFailed = true;
506	>	try {
507		assertTrue(b);
508	+	} catch (AssertionFailedError t) {
509	+	threadRecordFailure(t);
510	+	throw t;
511		}
512		}
513
514		/**
515	<	* If expression not false, set status to indicate current testcase
516	<	* should fail
517	<	*/
515	>	* Just like assertFalse(b), but additionally recording (using
516	>	* threadRecordFailure) any AssertionFailedError thrown, so that
517	>	* the current testcase will fail.
518	>	*/
519		public void threadAssertFalse(boolean b) {
520	<	if (b) {
223	<	threadFailed = true;
520	>	try {
521		assertFalse(b);
522	+	} catch (AssertionFailedError t) {
523	+	threadRecordFailure(t);
524	+	throw t;
525		}
526		}
527
528		/**
529	<	* If argument not null, set status to indicate current testcase
530	<	* should fail
531	<	*/
529	>	* Just like assertNull(x), but additionally recording (using
530	>	* threadRecordFailure) any AssertionFailedError thrown, so that
531	>	* the current testcase will fail.
532	>	*/
533		public void threadAssertNull(Object x) {
534	<	if (x != null) {
234	<	threadFailed = true;
534	>	try {
535		assertNull(x);
536	+	} catch (AssertionFailedError t) {
537	+	threadRecordFailure(t);
538	+	throw t;
539		}
540		}
541
542		/**
543	<	* If arguments not equal, set status to indicate current testcase
544	<	* should fail
545	<	*/
543	>	* Just like assertEquals(x, y), but additionally recording (using
544	>	* threadRecordFailure) any AssertionFailedError thrown, so that
545	>	* the current testcase will fail.
546	>	*/
547		public void threadAssertEquals(long x, long y) {
548	<	if (x != y) {
245	<	threadFailed = true;
548	>	try {
549		assertEquals(x, y);
550	+	} catch (AssertionFailedError t) {
551	+	threadRecordFailure(t);
552	+	throw t;
553		}
554		}
555
556		/**
557	<	* If arguments not equal, set status to indicate current testcase
558	<	* should fail
559	<	*/
557	>	* Just like assertEquals(x, y), but additionally recording (using
558	>	* threadRecordFailure) any AssertionFailedError thrown, so that
559	>	* the current testcase will fail.
560	>	*/
561		public void threadAssertEquals(Object x, Object y) {
562	<	if (x != y && (x == null || !x.equals(y))) {
256	<	threadFailed = true;
562	>	try {
563		assertEquals(x, y);
564	+	} catch (AssertionFailedError fail) {
565	+	threadRecordFailure(fail);
566	+	throw fail;
567	+	} catch (Throwable fail) {
568	+	threadUnexpectedException(fail);
569		}
570		}
571
572		/**
573	<	* threadFail with message "should throw exception"
574	<	*/
573	>	* Just like assertSame(x, y), but additionally recording (using
574	>	* threadRecordFailure) any AssertionFailedError thrown, so that
575	>	* the current testcase will fail.
576	>	*/
577	>	public void threadAssertSame(Object x, Object y) {
578	>	try {
579	>	assertSame(x, y);
580	>	} catch (AssertionFailedError fail) {
581	>	threadRecordFailure(fail);
582	>	throw fail;
583	>	}
584	>	}
585	>
586	>	/**
587	>	* Calls threadFail with message "should throw exception".
588	>	*/
589		public void threadShouldThrow() {
590	<	threadFailed = true;
266	<	fail("should throw exception");
590	>	threadFail("should throw exception");
591		}
592
593		/**
594	<	* threadFail with message "Unexpected exception"
594	>	* Calls threadFail with message "should throw" + exceptionName.
595		*/
596	<	public void threadUnexpectedException() {
597	<	threadFailed = true;
274	<	fail("Unexpected exception");
596	>	public void threadShouldThrow(String exceptionName) {
597	>	threadFail("should throw " + exceptionName);
598		}
599
600	+	/**
601	+	* Records the given exception using {@link #threadRecordFailure},
602	+	* then rethrows the exception, wrapping it in an
603	+	* AssertionFailedError if necessary.
604	+	*/
605	+	public void threadUnexpectedException(Throwable t) {
606	+	threadRecordFailure(t);
607	+	t.printStackTrace();
608	+	if (t instanceof RuntimeException)
609	+	throw (RuntimeException) t;
610	+	else if (t instanceof Error)
611	+	throw (Error) t;
612	+	else {
613	+	AssertionFailedError afe =
614	+	new AssertionFailedError("unexpected exception: " + t);
615	+	afe.initCause(t);
616	+	throw afe;
617	+	}
618	+	}
619
620		/**
621	<	* Wait out termination of a thread pool or fail doing so
621	>	* Delays, via Thread.sleep, for the given millisecond delay, but
622	>	* if the sleep is shorter than specified, may re-sleep or yield
623	>	* until time elapses.
624		*/
625	<	public void joinPool(ExecutorService exec) {
625	>	static void delay(long millis) throws InterruptedException {
626	>	long startTime = System.nanoTime();
627	>	long ns = millis * 1000 * 1000;
628	>	for (;;) {
629	>	if (millis > 0L)
630	>	Thread.sleep(millis);
631	>	else // too short to sleep
632	>	Thread.yield();
633	>	long d = ns - (System.nanoTime() - startTime);
634	>	if (d > 0L)
635	>	millis = d / (1000 * 1000);
636	>	else
637	>	break;
638	>	}
639	>	}
640	>
641	>	/**
642	>	* Waits out termination of a thread pool or fails doing so.
643	>	*/
644	>	void joinPool(ExecutorService exec) {
645		try {
646		exec.shutdown();
647	<	assertTrue(exec.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
648	<	} catch(InterruptedException ie) {
649	<	fail("Unexpected exception");
647	>	if (!exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS))
648	>	fail("ExecutorService " + exec +
649	>	" did not terminate in a timely manner");
650	>	} catch (SecurityException ok) {
651	>	// Allowed in case test doesn't have privs
652	>	} catch (InterruptedException fail) {
653	>	fail("Unexpected InterruptedException");
654	>	}
655	>	}
656	>
657	>	/**
658	>	* A debugging tool to print all stack traces, as jstack does.
659	>	*/
660	>	static void printAllStackTraces() {
661	>	for (ThreadInfo info :
662	>	ManagementFactory.getThreadMXBean()
663	>	.dumpAllThreads(true, true))
664	>	System.err.print(info);
665	>	}
666	>
667	>	/**
668	>	* Checks that thread does not terminate within the default
669	>	* millisecond delay of {@code timeoutMillis()}.
670	>	*/
671	>	void assertThreadStaysAlive(Thread thread) {
672	>	assertThreadStaysAlive(thread, timeoutMillis());
673	>	}
674	>
675	>	/**
676	>	* Checks that thread does not terminate within the given millisecond delay.
677	>	*/
678	>	void assertThreadStaysAlive(Thread thread, long millis) {
679	>	try {
680	>	// No need to optimize the failing case via Thread.join.
681	>	delay(millis);
682	>	assertTrue(thread.isAlive());
683	>	} catch (InterruptedException fail) {
684	>	fail("Unexpected InterruptedException");
685		}
686		}
687
688	+	/**
689	+	* Checks that the threads do not terminate within the default
690	+	* millisecond delay of {@code timeoutMillis()}.
691	+	*/
692	+	void assertThreadsStayAlive(Thread... threads) {
693	+	assertThreadsStayAlive(timeoutMillis(), threads);
694	+	}
695	+
696	+	/**
697	+	* Checks that the threads do not terminate within the given millisecond delay.
698	+	*/
699	+	void assertThreadsStayAlive(long millis, Thread... threads) {
700	+	try {
701	+	// No need to optimize the failing case via Thread.join.
702	+	delay(millis);
703	+	for (Thread thread : threads)
704	+	assertTrue(thread.isAlive());
705	+	} catch (InterruptedException fail) {
706	+	fail("Unexpected InterruptedException");
707	+	}
708	+	}
709	+
710	+	/**
711	+	* Checks that future.get times out, with the default timeout of
712	+	* {@code timeoutMillis()}.
713	+	*/
714	+	void assertFutureTimesOut(Future future) {
715	+	assertFutureTimesOut(future, timeoutMillis());
716	+	}
717	+
718	+	/**
719	+	* Checks that future.get times out, with the given millisecond timeout.
720	+	*/
721	+	void assertFutureTimesOut(Future future, long timeoutMillis) {
722	+	long startTime = System.nanoTime();
723	+	try {
724	+	future.get(timeoutMillis, MILLISECONDS);
725	+	shouldThrow();
726	+	} catch (TimeoutException success) {
727	+	} catch (Exception fail) {
728	+	threadUnexpectedException(fail);
729	+	} finally { future.cancel(true); }
730	+	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
731	+	}
732
733		/**
734	<	* fail with message "should throw exception"
735	<	*/
734	>	* Fails with message "should throw exception".
735	>	*/
736		public void shouldThrow() {
737		fail("Should throw exception");
738		}
739
740		/**
741	<	* fail with message "Unexpected exception"
741	>	* Fails with message "should throw " + exceptionName.
742		*/
743	<	public void unexpectedException() {
744	<	fail("Unexpected exception");
743	>	public void shouldThrow(String exceptionName) {
744	>	fail("Should throw " + exceptionName);
745		}
746
305	–
747		/**
748		* The number of elements to place in collections, arrays, etc.
749		*/
750	<	static final int SIZE = 20;
750	>	public static final int SIZE = 20;
751
752		// Some convenient Integer constants
753
754	<	static final Integer zero = new Integer(0);
755	<	static final Integer one = new Integer(1);
756	<	static final Integer two = new Integer(2);
757	<	static final Integer three  = new Integer(3);
758	<	static final Integer four  = new Integer(4);
759	<	static final Integer five  = new Integer(5);
760	<	static final Integer six = new Integer(6);
761	<	static final Integer seven = new Integer(7);
762	<	static final Integer eight = new Integer(8);
763	<	static final Integer nine = new Integer(9);
764	<	static final Integer m1  = new Integer(-1);
765	<	static final Integer m2  = new Integer(-2);
766	<	static final Integer m3  = new Integer(-3);
767	<	static final Integer m4 = new Integer(-4);
768	<	static final Integer m5 = new Integer(-5);
769	<	static final Integer m10 = new Integer(-10);
754	>	public static final Integer zero  = new Integer(0);
755	>	public static final Integer one   = new Integer(1);
756	>	public static final Integer two   = new Integer(2);
757	>	public static final Integer three = new Integer(3);
758	>	public static final Integer four  = new Integer(4);
759	>	public static final Integer five  = new Integer(5);
760	>	public static final Integer six   = new Integer(6);
761	>	public static final Integer seven = new Integer(7);
762	>	public static final Integer eight = new Integer(8);
763	>	public static final Integer nine  = new Integer(9);
764	>	public static final Integer m1  = new Integer(-1);
765	>	public static final Integer m2  = new Integer(-2);
766	>	public static final Integer m3  = new Integer(-3);
767	>	public static final Integer m4  = new Integer(-4);
768	>	public static final Integer m5  = new Integer(-5);
769	>	public static final Integer m6  = new Integer(-6);
770	>	public static final Integer m10 = new Integer(-10);
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, the runnable is run twice, both with and without a
776	>	* security manager.  We require that any security manager permit
777	>	* getPolicy/setPolicy.
778	>	*/
779	>	public void runWithPermissions(Runnable r, Permission... permissions) {
780	>	SecurityManager sm = System.getSecurityManager();
781	>	if (sm == null) {
782	>	r.run();
783	>	}
784	>	runWithSecurityManagerWithPermissions(r, permissions);
785	>	}
786
787	+	/**
788	+	* Runs Runnable r with a security policy that permits precisely
789	+	* the specified permissions.  If there is no current security
790	+	* manager, a temporary one is set for the duration of the
791	+	* Runnable.  We require that any security manager permit
792	+	* getPolicy/setPolicy.
793	+	*/
794	+	public void runWithSecurityManagerWithPermissions(Runnable r,
795	+	Permission... permissions) {
796	+	SecurityManager sm = System.getSecurityManager();
797	+	if (sm == null) {
798	+	Policy savedPolicy = Policy.getPolicy();
799	+	try {
800	+	Policy.setPolicy(permissivePolicy());
801	+	System.setSecurityManager(new SecurityManager());
802	+	runWithSecurityManagerWithPermissions(r, permissions);
803	+	} finally {
804	+	System.setSecurityManager(null);
805	+	Policy.setPolicy(savedPolicy);
806	+	}
807	+	} else {
808	+	Policy savedPolicy = Policy.getPolicy();
809	+	AdjustablePolicy policy = new AdjustablePolicy(permissions);
810	+	Policy.setPolicy(policy);
811	+
812	+	try {
813	+	r.run();
814	+	} finally {
815	+	policy.addPermission(new SecurityPermission("setPolicy"));
816	+	Policy.setPolicy(savedPolicy);
817	+	}
818	+	}
819	+	}
820	+
821	+	/**
822	+	* Runs a runnable without any permissions.
823	+	*/
824	+	public void runWithoutPermissions(Runnable r) {
825	+	runWithPermissions(r);
826	+	}
827
828		/**
829		* A security policy where new permissions can be dynamically added
830		* or all cleared.
831		*/
832	<	static class AdjustablePolicy extends java.security.Policy {
832	>	public static class AdjustablePolicy extends java.security.Policy {
833		Permissions perms = new Permissions();
834	<	AdjustablePolicy() { }
834	>	AdjustablePolicy(Permission... permissions) {
835	>	for (Permission permission : permissions)
836	>	perms.add(permission);
837	>	}
838		void addPermission(Permission perm) { perms.add(perm); }
839		void clearPermissions() { perms = new Permissions(); }
840	<	public PermissionCollection getPermissions(CodeSource cs) {
841	<	return perms;
842	<	}
843	<	public PermissionCollection getPermissions(ProtectionDomain pd) {
844	<	return perms;
845	<	}
846	<	public boolean implies(ProtectionDomain pd, Permission p) {
847	<	return perms.implies(p);
848	<	}
849	<	public void refresh() {}
840	>	public PermissionCollection getPermissions(CodeSource cs) {
841	>	return perms;
842	>	}
843	>	public PermissionCollection getPermissions(ProtectionDomain pd) {
844	>	return perms;
845	>	}
846	>	public boolean implies(ProtectionDomain pd, Permission p) {
847	>	return perms.implies(p);
848	>	}
849	>	public void refresh() {}
850	>	public String toString() {
851	>	List<Permission> ps = new ArrayList<Permission>();
852	>	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
853	>	ps.add(e.nextElement());
854	>	return "AdjustablePolicy with permissions " + ps;
855	>	}
856		}
857
858	+	/**
859	+	* Returns a policy containing all the permissions we ever need.
860	+	*/
861	+	public static Policy permissivePolicy() {
862	+	return new AdjustablePolicy
863	+	// Permissions j.u.c. needs directly
864	+	(new RuntimePermission("modifyThread"),
865	+	new RuntimePermission("getClassLoader"),
866	+	new RuntimePermission("setContextClassLoader"),
867	+	// Permissions needed to change permissions!
868	+	new SecurityPermission("getPolicy"),
869	+	new SecurityPermission("setPolicy"),
870	+	new RuntimePermission("setSecurityManager"),
871	+	// Permissions needed by the junit test harness
872	+	new RuntimePermission("accessDeclaredMembers"),
873	+	new PropertyPermission("*", "read"),
874	+	new java.io.FilePermission("<<ALL FILES>>", "read"));
875	+	}
876
877	<	// Some convenient Runnable classes
877	>	/**
878	>	* Sleeps until the given time has elapsed.
879	>	* Throws AssertionFailedError if interrupted.
880	>	*/
881	>	void sleep(long millis) {
882	>	try {
883	>	delay(millis);
884	>	} catch (InterruptedException fail) {
885	>	AssertionFailedError afe =
886	>	new AssertionFailedError("Unexpected InterruptedException");
887	>	afe.initCause(fail);
888	>	throw afe;
889	>	}
890	>	}
891
892	<	static class NoOpRunnable implements Runnable {
893	<	public void run() {}
892	>	/**
893	>	* Spin-waits up to the specified number of milliseconds for the given
894	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
895	>	*/
896	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
897	>	long startTime = System.nanoTime();
898	>	for (;;) {
899	>	Thread.State s = thread.getState();
900	>	if (s == Thread.State.BLOCKED ||
901	>	s == Thread.State.WAITING ||
902	>	s == Thread.State.TIMED_WAITING)
903	>	return;
904	>	else if (s == Thread.State.TERMINATED)
905	>	fail("Unexpected thread termination");
906	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
907	>	threadAssertTrue(thread.isAlive());
908	>	return;
909	>	}
910	>	Thread.yield();
911	>	}
912		}
913
914	<	static class NoOpCallable implements Callable {
915	<	public Object call() { return Boolean.TRUE; }
914	>	/**
915	>	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
916	>	* state: BLOCKED, WAITING, or TIMED_WAITING.
917	>	*/
918	>	void waitForThreadToEnterWaitState(Thread thread) {
919	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
920	>	}
921	>
922	>	/**
923	>	* Returns the number of milliseconds since time given by
924	>	* startNanoTime, which must have been previously returned from a
925	>	* call to {@link System#nanoTime()}.
926	>	*/
927	>	static long millisElapsedSince(long startNanoTime) {
928	>	return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
929		}
930
931	<	static final String TEST_STRING = "a test string";
931	>	//     void assertTerminatesPromptly(long timeoutMillis, Runnable r) {
932	>	//         long startTime = System.nanoTime();
933	>	//         try {
934	>	//             r.run();
935	>	//         } catch (Throwable fail) { threadUnexpectedException(fail); }
936	>	//         if (millisElapsedSince(startTime) > timeoutMillis/2)
937	>	//             throw new AssertionFailedError("did not return promptly");
938	>	//     }
939	>
940	>	//     void assertTerminatesPromptly(Runnable r) {
941	>	//         assertTerminatesPromptly(LONG_DELAY_MS/2, r);
942	>	//     }
943
944	<	static class StringTask implements Callable<String> {
945	<	public String call() { return TEST_STRING; }
944	>	/**
945	>	* Checks that timed f.get() returns the expected value, and does not
946	>	* wait for the timeout to elapse before returning.
947	>	*/
948	>	<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
949	>	long startTime = System.nanoTime();
950	>	try {
951	>	assertEquals(expectedValue, f.get(timeoutMillis, MILLISECONDS));
952	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
953	>	if (millisElapsedSince(startTime) > timeoutMillis/2)
954	>	throw new AssertionFailedError("timed get did not return promptly");
955		}
956
957	<	static class NPETask implements Callable<String> {
958	<	public String call() { throw new NullPointerException(); }
957	>	<T> void checkTimedGet(Future<T> f, T expectedValue) {
958	>	checkTimedGet(f, expectedValue, LONG_DELAY_MS);
959		}
960
961	<	static class CallableOne implements Callable<Integer> {
962	<	public Integer call() { return one; }
961	>	/**
962	>	* Returns a new started daemon Thread running the given runnable.
963	>	*/
964	>	Thread newStartedThread(Runnable runnable) {
965	>	Thread t = new Thread(runnable);
966	>	t.setDaemon(true);
967	>	t.start();
968	>	return t;
969		}
970
971	<	class ShortRunnable implements Runnable {
972	<	public void run() {
973	<	try {
974	<	Thread.sleep(SHORT_DELAY_MS);
975	<	}
976	<	catch(Exception e) {
977	<	threadUnexpectedException();
971	>	/**
972	>	* Waits for the specified time (in milliseconds) for the thread
973	>	* to terminate (using {@link Thread#join(long)}), else interrupts
974	>	* the thread (in the hope that it may terminate later) and fails.
975	>	*/
976	>	void awaitTermination(Thread t, long timeoutMillis) {
977	>	try {
978	>	t.join(timeoutMillis);
979	>	} catch (InterruptedException fail) {
980	>	threadUnexpectedException(fail);
981	>	} finally {
982	>	if (t.getState() != Thread.State.TERMINATED) {
983	>	t.interrupt();
984	>	fail("Test timed out");
985		}
986		}
987		}
988
989	<	class ShortInterruptedRunnable implements Runnable {
990	<	public void run() {
989	>	/**
990	>	* Waits for LONG_DELAY_MS milliseconds for the thread to
991	>	* terminate (using {@link Thread#join(long)}), else interrupts
992	>	* the thread (in the hope that it may terminate later) and fails.
993	>	*/
994	>	void awaitTermination(Thread t) {
995	>	awaitTermination(t, LONG_DELAY_MS);
996	>	}
997	>
998	>	// Some convenient Runnable classes
999	>
1000	>	public abstract class CheckedRunnable implements Runnable {
1001	>	protected abstract void realRun() throws Throwable;
1002	>
1003	>	public final void run() {
1004		try {
1005	<	Thread.sleep(SHORT_DELAY_MS);
1006	<	threadShouldThrow();
1007	<	}
394	<	catch(InterruptedException success) {
1005	>	realRun();
1006	>	} catch (Throwable fail) {
1007	>	threadUnexpectedException(fail);
1008		}
1009		}
1010		}
1011
1012	<	class SmallRunnable implements Runnable {
1013	<	public void run() {
1012	>	public abstract class RunnableShouldThrow implements Runnable {
1013	>	protected abstract void realRun() throws Throwable;
1014	>
1015	>	final Class<?> exceptionClass;
1016	>
1017	>	<T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) {
1018	>	this.exceptionClass = exceptionClass;
1019	>	}
1020	>
1021	>	public final void run() {
1022		try {
1023	<	Thread.sleep(SMALL_DELAY_MS);
1024	<	}
1025	<	catch(Exception e) {
1026	<	threadUnexpectedException();
1023	>	realRun();
1024	>	threadShouldThrow(exceptionClass.getSimpleName());
1025	>	} catch (Throwable t) {
1026	>	if (! exceptionClass.isInstance(t))
1027	>	threadUnexpectedException(t);
1028		}
1029		}
1030		}
1031
1032	<	class SmallPossiblyInterruptedRunnable implements Runnable {
1033	<	public void run() {
1032	>	public abstract class ThreadShouldThrow extends Thread {
1033	>	protected abstract void realRun() throws Throwable;
1034	>
1035	>	final Class<?> exceptionClass;
1036	>
1037	>	<T extends Throwable> ThreadShouldThrow(Class<T> exceptionClass) {
1038	>	this.exceptionClass = exceptionClass;
1039	>	}
1040	>
1041	>	public final void run() {
1042		try {
1043	<	Thread.sleep(SMALL_DELAY_MS);
1044	<	}
1045	<	catch(Exception e) {
1043	>	realRun();
1044	>	threadShouldThrow(exceptionClass.getSimpleName());
1045	>	} catch (Throwable t) {
1046	>	if (! exceptionClass.isInstance(t))
1047	>	threadUnexpectedException(t);
1048		}
1049		}
1050		}
1051
1052	<	class SmallCallable implements Callable {
1053	<	public Object call() {
1052	>	public abstract class CheckedInterruptedRunnable implements Runnable {
1053	>	protected abstract void realRun() throws Throwable;
1054	>
1055	>	public final void run() {
1056		try {
1057	<	Thread.sleep(SMALL_DELAY_MS);
1058	<	}
1059	<	catch(Exception e) {
1060	<	threadUnexpectedException();
1057	>	realRun();
1058	>	threadShouldThrow("InterruptedException");
1059	>	} catch (InterruptedException success) {
1060	>	threadAssertFalse(Thread.interrupted());
1061	>	} catch (Throwable fail) {
1062	>	threadUnexpectedException(fail);
1063		}
428	–	return Boolean.TRUE;
1064		}
1065		}
1066
1067	<	class SmallInterruptedRunnable implements Runnable {
1068	<	public void run() {
1067	>	public abstract class CheckedCallable<T> implements Callable<T> {
1068	>	protected abstract T realCall() throws Throwable;
1069	>
1070	>	public final T call() {
1071		try {
1072	<	Thread.sleep(SMALL_DELAY_MS);
1073	<	threadShouldThrow();
1074	<	}
1075	<	catch(InterruptedException success) {
1072	>	return realCall();
1073	>	} catch (Throwable fail) {
1074	>	threadUnexpectedException(fail);
1075	>	return null;
1076		}
1077		}
1078		}
1079
1080	+	public abstract class CheckedInterruptedCallable<T>
1081	+	implements Callable<T> {
1082	+	protected abstract T realCall() throws Throwable;
1083
1084	<	class MediumRunnable implements Runnable {
445	<	public void run() {
1084	>	public final T call() {
1085		try {
1086	<	Thread.sleep(MEDIUM_DELAY_MS);
1087	<	}
1088	<	catch(Exception e) {
1089	<	threadUnexpectedException();
1086	>	T result = realCall();
1087	>	threadShouldThrow("InterruptedException");
1088	>	return result;
1089	>	} catch (InterruptedException success) {
1090	>	threadAssertFalse(Thread.interrupted());
1091	>	} catch (Throwable fail) {
1092	>	threadUnexpectedException(fail);
1093		}
1094	+	return null;
1095		}
1096		}
1097
1098	<	class MediumInterruptedRunnable implements Runnable {
1099	<	public void run() {
1098	>	public static class NoOpRunnable implements Runnable {
1099	>	public void run() {}
1100	>	}
1101	>
1102	>	public static class NoOpCallable implements Callable {
1103	>	public Object call() { return Boolean.TRUE; }
1104	>	}
1105	>
1106	>	public static final String TEST_STRING = "a test string";
1107	>
1108	>	public static class StringTask implements Callable<String> {
1109	>	public String call() { return TEST_STRING; }
1110	>	}
1111	>
1112	>	public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
1113	>	return new CheckedCallable<String>() {
1114	>	protected String realCall() {
1115	>	try {
1116	>	latch.await();
1117	>	} catch (InterruptedException quittingTime) {}
1118	>	return TEST_STRING;
1119	>	}};
1120	>	}
1121	>
1122	>	public Runnable awaiter(final CountDownLatch latch) {
1123	>	return new CheckedRunnable() {
1124	>	public void realRun() throws InterruptedException {
1125	>	await(latch);
1126	>	}};
1127	>	}
1128	>
1129	>	public void await(CountDownLatch latch) {
1130	>	try {
1131	>	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1132	>	} catch (Throwable fail) {
1133	>	threadUnexpectedException(fail);
1134	>	}
1135	>	}
1136	>
1137	>	public void await(Semaphore semaphore) {
1138	>	try {
1139	>	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1140	>	} catch (Throwable fail) {
1141	>	threadUnexpectedException(fail);
1142	>	}
1143	>	}
1144	>
1145	>	//     /**
1146	>	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1147	>	//      */
1148	>	//     public void await(AtomicBoolean flag) {
1149	>	//         await(flag, LONG_DELAY_MS);
1150	>	//     }
1151	>
1152	>	//     /**
1153	>	//      * Spin-waits up to the specified timeout until flag becomes true.
1154	>	//      */
1155	>	//     public void await(AtomicBoolean flag, long timeoutMillis) {
1156	>	//         long startTime = System.nanoTime();
1157	>	//         while (!flag.get()) {
1158	>	//             if (millisElapsedSince(startTime) > timeoutMillis)
1159	>	//                 throw new AssertionFailedError("timed out");
1160	>	//             Thread.yield();
1161	>	//         }
1162	>	//     }
1163	>
1164	>	public static class NPETask implements Callable<String> {
1165	>	public String call() { throw new NullPointerException(); }
1166	>	}
1167	>
1168	>	public static class CallableOne implements Callable<Integer> {
1169	>	public Integer call() { return one; }
1170	>	}
1171	>
1172	>	public class ShortRunnable extends CheckedRunnable {
1173	>	protected void realRun() throws Throwable {
1174	>	delay(SHORT_DELAY_MS);
1175	>	}
1176	>	}
1177	>
1178	>	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1179	>	protected void realRun() throws InterruptedException {
1180	>	delay(SHORT_DELAY_MS);
1181	>	}
1182	>	}
1183	>
1184	>	public class SmallRunnable extends CheckedRunnable {
1185	>	protected void realRun() throws Throwable {
1186	>	delay(SMALL_DELAY_MS);
1187	>	}
1188	>	}
1189	>
1190	>	public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1191	>	protected void realRun() {
1192		try {
1193	<	Thread.sleep(MEDIUM_DELAY_MS);
1194	<	threadShouldThrow();
460	<	}
461	<	catch(InterruptedException success) {
462	<	}
1193	>	delay(SMALL_DELAY_MS);
1194	>	} catch (InterruptedException ok) {}
1195		}
1196		}
1197
1198	<	class MediumPossiblyInterruptedRunnable implements Runnable {
1199	<	public void run() {
1198	>	public class SmallCallable extends CheckedCallable {
1199	>	protected Object realCall() throws InterruptedException {
1200	>	delay(SMALL_DELAY_MS);
1201	>	return Boolean.TRUE;
1202	>	}
1203	>	}
1204	>
1205	>	public class MediumRunnable extends CheckedRunnable {
1206	>	protected void realRun() throws Throwable {
1207	>	delay(MEDIUM_DELAY_MS);
1208	>	}
1209	>	}
1210	>
1211	>	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1212	>	protected void realRun() throws InterruptedException {
1213	>	delay(MEDIUM_DELAY_MS);
1214	>	}
1215	>	}
1216	>
1217	>	public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1218	>	return new CheckedRunnable() {
1219	>	protected void realRun() {
1220	>	try {
1221	>	delay(timeoutMillis);
1222	>	} catch (InterruptedException ok) {}
1223	>	}};
1224	>	}
1225	>
1226	>	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1227	>	protected void realRun() {
1228		try {
1229	<	Thread.sleep(MEDIUM_DELAY_MS);
1230	<	}
471	<	catch(InterruptedException success) {
472	<	}
1229	>	delay(MEDIUM_DELAY_MS);
1230	>	} catch (InterruptedException ok) {}
1231		}
1232		}
1233
1234	<	class LongPossiblyInterruptedRunnable implements Runnable {
1235	<	public void run() {
1234	>	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1235	>	protected void realRun() {
1236		try {
1237	<	Thread.sleep(LONG_DELAY_MS);
1238	<	}
481	<	catch(InterruptedException success) {
482	<	}
1237	>	delay(LONG_DELAY_MS);
1238	>	} catch (InterruptedException ok) {}
1239		}
1240		}
1241
1242		/**
1243		* For use as ThreadFactory in constructors
1244		*/
1245	<	static class SimpleThreadFactory implements ThreadFactory{
1246	<	public Thread newThread(Runnable r){
1245	>	public static class SimpleThreadFactory implements ThreadFactory {
1246	>	public Thread newThread(Runnable r) {
1247		return new Thread(r);
1248	<	}
1248	>	}
1249	>	}
1250	>
1251	>	public interface TrackedRunnable extends Runnable {
1252	>	boolean isDone();
1253		}
1254
1255	<	static class TrackedShortRunnable implements Runnable {
1256	<	volatile boolean done = false;
1255	>	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1256	>	return new TrackedRunnable() {
1257	>	private volatile boolean done = false;
1258	>	public boolean isDone() { return done; }
1259	>	public void run() {
1260	>	try {
1261	>	delay(timeoutMillis);
1262	>	done = true;
1263	>	} catch (InterruptedException ok) {}
1264	>	}
1265	>	};
1266	>	}
1267	>
1268	>	public static class TrackedShortRunnable implements Runnable {
1269	>	public volatile boolean done = false;
1270		public void run() {
1271		try {
1272	<	Thread.sleep(SMALL_DELAY_MS);
1272	>	delay(SHORT_DELAY_MS);
1273		done = true;
1274	<	} catch(Exception e){
502	<	}
1274	>	} catch (InterruptedException ok) {}
1275		}
1276		}
1277
1278	<	static class TrackedMediumRunnable implements Runnable {
1279	<	volatile boolean done = false;
1278	>	public static class TrackedSmallRunnable implements Runnable {
1279	>	public volatile boolean done = false;
1280		public void run() {
1281		try {
1282	<	Thread.sleep(MEDIUM_DELAY_MS);
1282	>	delay(SMALL_DELAY_MS);
1283		done = true;
1284	<	} catch(Exception e){
513	<	}
1284	>	} catch (InterruptedException ok) {}
1285		}
1286		}
1287
1288	<	static class TrackedLongRunnable implements Runnable {
1289	<	volatile boolean done = false;
1288	>	public static class TrackedMediumRunnable implements Runnable {
1289	>	public volatile boolean done = false;
1290		public void run() {
1291		try {
1292	<	Thread.sleep(LONG_DELAY_MS);
1292	>	delay(MEDIUM_DELAY_MS);
1293		done = true;
1294	<	} catch(Exception e){
524	<	}
1294	>	} catch (InterruptedException ok) {}
1295		}
1296		}
1297
1298	<	static class TrackedNoOpRunnable implements Runnable {
1299	<	volatile boolean done = false;
1298	>	public static class TrackedLongRunnable implements Runnable {
1299	>	public volatile boolean done = false;
1300	>	public void run() {
1301	>	try {
1302	>	delay(LONG_DELAY_MS);
1303	>	done = true;
1304	>	} catch (InterruptedException ok) {}
1305	>	}
1306	>	}
1307	>
1308	>	public static class TrackedNoOpRunnable implements Runnable {
1309	>	public volatile boolean done = false;
1310		public void run() {
1311		done = true;
1312		}
1313		}
1314
1315	<	static class TrackedCallable implements Callable {
1316	<	volatile boolean done = false;
1315	>	public static class TrackedCallable implements Callable {
1316	>	public volatile boolean done = false;
1317		public Object call() {
1318		try {
1319	<	Thread.sleep(SMALL_DELAY_MS);
1319	>	delay(SMALL_DELAY_MS);
1320		done = true;
1321	<	} catch(Exception e){
542	<	}
1321	>	} catch (InterruptedException ok) {}
1322		return Boolean.TRUE;
1323		}
1324		}
1325
1326	+	/**
1327	+	* Analog of CheckedRunnable for RecursiveAction
1328	+	*/
1329	+	public abstract class CheckedRecursiveAction extends RecursiveAction {
1330	+	protected abstract void realCompute() throws Throwable;
1331	+
1332	+	@Override protected final void compute() {
1333	+	try {
1334	+	realCompute();
1335	+	} catch (Throwable fail) {
1336	+	threadUnexpectedException(fail);
1337	+	}
1338	+	}
1339	+	}
1340	+
1341	+	/**
1342	+	* Analog of CheckedCallable for RecursiveTask
1343	+	*/
1344	+	public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1345	+	protected abstract T realCompute() throws Throwable;
1346	+
1347	+	@Override protected final T compute() {
1348	+	try {
1349	+	return realCompute();
1350	+	} catch (Throwable fail) {
1351	+	threadUnexpectedException(fail);
1352	+	return null;
1353	+	}
1354	+	}
1355	+	}
1356
1357		/**
1358		* For use as RejectedExecutionHandler in constructors
1359		*/
1360	<	static class NoOpREHandler implements RejectedExecutionHandler{
1361	<	public void rejectedExecution(Runnable r, ThreadPoolExecutor executor){}
1360	>	public static class NoOpREHandler implements RejectedExecutionHandler {
1361	>	public void rejectedExecution(Runnable r,
1362	>	ThreadPoolExecutor executor) {}
1363	>	}
1364	>
1365	>	/**
1366	>	* A CyclicBarrier that uses timed await and fails with
1367	>	* AssertionFailedErrors instead of throwing checked exceptions.
1368	>	*/
1369	>	public class CheckedBarrier extends CyclicBarrier {
1370	>	public CheckedBarrier(int parties) { super(parties); }
1371	>
1372	>	public int await() {
1373	>	try {
1374	>	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1375	>	} catch (TimeoutException timedOut) {
1376	>	throw new AssertionFailedError("timed out");
1377	>	} catch (Exception fail) {
1378	>	AssertionFailedError afe =
1379	>	new AssertionFailedError("Unexpected exception: " + fail);
1380	>	afe.initCause(fail);
1381	>	throw afe;
1382	>	}
1383	>	}
1384	>	}
1385	>
1386	>	void checkEmpty(BlockingQueue q) {
1387	>	try {
1388	>	assertTrue(q.isEmpty());
1389	>	assertEquals(0, q.size());
1390	>	assertNull(q.peek());
1391	>	assertNull(q.poll());
1392	>	assertNull(q.poll(0, MILLISECONDS));
1393	>	assertEquals(q.toString(), "[]");
1394	>	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1395	>	assertFalse(q.iterator().hasNext());
1396	>	try {
1397	>	q.element();
1398	>	shouldThrow();
1399	>	} catch (NoSuchElementException success) {}
1400	>	try {
1401	>	q.iterator().next();
1402	>	shouldThrow();
1403	>	} catch (NoSuchElementException success) {}
1404	>	try {
1405	>	q.remove();
1406	>	shouldThrow();
1407	>	} catch (NoSuchElementException success) {}
1408	>	} catch (InterruptedException fail) { threadUnexpectedException(fail); }
1409	>	}
1410	>
1411	>	void assertSerialEquals(Object x, Object y) {
1412	>	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1413	>	}
1414	>
1415	>	void assertNotSerialEquals(Object x, Object y) {
1416	>	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1417	>	}
1418	>
1419	>	byte[] serialBytes(Object o) {
1420	>	try {
1421	>	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1422	>	ObjectOutputStream oos = new ObjectOutputStream(bos);
1423	>	oos.writeObject(o);
1424	>	oos.flush();
1425	>	oos.close();
1426	>	return bos.toByteArray();
1427	>	} catch (Throwable fail) {
1428	>	threadUnexpectedException(fail);
1429	>	return new byte[0];
1430	>	}
1431	>	}
1432	>
1433	>	@SuppressWarnings("unchecked")
1434	>	<T> T serialClone(T o) {
1435	>	try {
1436	>	ObjectInputStream ois = new ObjectInputStream
1437	>	(new ByteArrayInputStream(serialBytes(o)));
1438	>	T clone = (T) ois.readObject();
1439	>	assertSame(o.getClass(), clone.getClass());
1440	>	return clone;
1441	>	} catch (Throwable fail) {
1442	>	threadUnexpectedException(fail);
1443	>	return null;
1444	>	}
1445	>	}
1446	>
1447	>	public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1448	>	Runnable... throwingActions) {
1449	>	for (Runnable throwingAction : throwingActions) {
1450	>	boolean threw = false;
1451	>	try { throwingAction.run(); }
1452	>	catch (Throwable t) {
1453	>	threw = true;
1454	>	if (!expectedExceptionClass.isInstance(t)) {
1455	>	AssertionFailedError afe =
1456	>	new AssertionFailedError
1457	>	("Expected " + expectedExceptionClass.getName() +
1458	>	", got " + t.getClass().getName());
1459	>	afe.initCause(t);
1460	>	threadUnexpectedException(afe);
1461	>	}
1462	>	}
1463	>	if (!threw)
1464	>	shouldThrow(expectedExceptionClass.getName());
1465	>	}
1466	>	}
1467	>
1468	>	public void assertIteratorExhausted(Iterator<?> it) {
1469	>	try {
1470	>	it.next();
1471	>	shouldThrow();
1472	>	} catch (NoSuchElementException success) {}
1473	>	assertFalse(it.hasNext());
1474		}
554	–
555	–
1475		}

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