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Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.33 by jsr166, Fri Jul 31 23:37:31 2009 UTC vs.
Revision 1.154 by jsr166, Sat Oct 3 19:39:16 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
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.management.ThreadMXBean;
19	>	import java.lang.reflect.Constructor;
20	>	import java.lang.reflect.Method;
21	>	import java.lang.reflect.Modifier;
22	>	import java.security.CodeSource;
23	>	import java.security.Permission;
24	>	import java.security.PermissionCollection;
25	>	import java.security.Permissions;
26	>	import java.security.Policy;
27	>	import java.security.ProtectionDomain;
28	>	import java.security.SecurityPermission;
29	>	import java.util.ArrayList;
30	>	import java.util.Arrays;
31	>	import java.util.Date;
32	>	import java.util.Enumeration;
33	>	import java.util.Iterator;
34	>	import java.util.List;
35	>	import java.util.NoSuchElementException;
36	>	import java.util.PropertyPermission;
37	>	import java.util.concurrent.BlockingQueue;
38	>	import java.util.concurrent.Callable;
39	>	import java.util.concurrent.CountDownLatch;
40	>	import java.util.concurrent.CyclicBarrier;
41	>	import java.util.concurrent.ExecutionException;
42	>	import java.util.concurrent.Executors;
43	>	import java.util.concurrent.ExecutorService;
44	>	import java.util.concurrent.ForkJoinPool;
45	>	import java.util.concurrent.Future;
46	>	import java.util.concurrent.RecursiveAction;
47	>	import java.util.concurrent.RecursiveTask;
48	>	import java.util.concurrent.RejectedExecutionHandler;
49	>	import java.util.concurrent.Semaphore;
50	>	import java.util.concurrent.ThreadFactory;
51	>	import java.util.concurrent.ThreadPoolExecutor;
52	>	import java.util.concurrent.TimeoutException;
53	>	import java.util.concurrent.atomic.AtomicReference;
54	>	import java.util.regex.Pattern;
55	>
56	>	import junit.framework.AssertionFailedError;
57	>	import junit.framework.Test;
58	>	import junit.framework.TestCase;
59	>	import junit.framework.TestResult;
60	>	import junit.framework.TestSuite;
61
62		/**
63		* Base class for JSR166 Junit TCK tests.  Defines some constants,
#	Line 22 | Line 69 | import java.security.*;
69		*
70		* <ol>
71		*
72	<	* <li> All assertions in code running in generated threads must use
72	>	* <li>All assertions in code running in generated threads must use
73		* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link
74		* #threadAssertEquals}, or {@link #threadAssertNull}, (not
75	<	* <tt>fail</tt>, <tt>assertTrue</tt>, etc.) It is OK (but not
75	>	* {@code fail}, {@code assertTrue}, etc.) It is OK (but not
76		* particularly recommended) for other code to use these forms too.
77		* Only the most typically used JUnit assertion methods are defined
78	<	* this way, but enough to live with.</li>
78	>	* this way, but enough to live with.
79		*
80	<	* <li> If you override {@link #setUp} or {@link #tearDown}, make sure
81	<	* to invoke <tt>super.setUp</tt> and <tt>super.tearDown</tt> within
80	>	* <li>If you override {@link #setUp} or {@link #tearDown}, make sure
81	>	* to invoke {@code super.setUp} and {@code super.tearDown} within
82		* them. These methods are used to clear and check for thread
83	<	* assertion failures.</li>
83	>	* assertion failures.
84		*
85	<	* <li>All delays and timeouts must use one of the constants <tt>
86	<	* SHORT_DELAY_MS</tt>, <tt> SMALL_DELAY_MS</tt>, <tt> MEDIUM_DELAY_MS</tt>,
87	<	* <tt> LONG_DELAY_MS</tt>. The idea here is that a SHORT is always
85	>	* <li>All delays and timeouts must use one of the constants {@code
86	>	* SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS},
87	>	* {@code LONG_DELAY_MS}. The idea here is that a SHORT is always
88		* discriminable from zero time, and always allows enough time for the
89		* small amounts of computation (creating a thread, calling a few
90		* methods, etc) needed to reach a timeout point. Similarly, a SMALL
91		* is always discriminable as larger than SHORT and smaller than
92		* MEDIUM.  And so on. These constants are set to conservative values,
93		* but even so, if there is ever any doubt, they can all be increased
94	<	* in one spot to rerun tests on slower platforms.</li>
94	>	* in one spot to rerun tests on slower platforms.
95		*
96	<	* <li> All threads generated must be joined inside each test case
97	<	* method (or <tt>fail</tt> to do so) before returning from the
98	<	* method. The <tt> joinPool</tt> method can be used to do this when
99	<	* using Executors.</li>
96	>	* <li>All threads generated must be joined inside each test case
97	>	* method (or {@code fail} to do so) before returning from the
98	>	* method. The {@code joinPool} method can be used to do this when
99	>	* using Executors.
100		*
101		* </ol>
102		*
103	<	* <p> <b>Other notes</b>
103	>	* <p><b>Other notes</b>
104		* <ul>
105		*
106	<	* <li> Usually, there is one testcase method per JSR166 method
106	>	* <li>Usually, there is one testcase method per JSR166 method
107		* covering "normal" operation, and then as many exception-testing
108		* methods as there are exceptions the method can throw. Sometimes
109		* there are multiple tests per JSR166 method when the different
110		* "normal" behaviors differ significantly. And sometimes testcases
111		* cover multiple methods when they cannot be tested in
112	<	* isolation.</li>
112	>	* isolation.
113		*
114	<	* <li> The documentation style for testcases is to provide as javadoc
114	>	* <li>The documentation style for testcases is to provide as javadoc
115		* a simple sentence or two describing the property that the testcase
116		* method purports to test. The javadocs do not say anything about how
117	<	* the property is tested. To find out, read the code.</li>
117	>	* the property is tested. To find out, read the code.
118		*
119	<	* <li> These tests are "conformance tests", and do not attempt to
119	>	* <li>These tests are "conformance tests", and do not attempt to
120		* test throughput, latency, scalability or other performance factors
121		* (see the separate "jtreg" tests for a set intended to check these
122		* for the most central aspects of functionality.) So, most tests use
123		* the smallest sensible numbers of threads, collection sizes, etc
124	<	* needed to check basic conformance.</li>
124	>	* needed to check basic conformance.
125		*
126		* <li>The test classes currently do not declare inclusion in
127		* any particular package to simplify things for people integrating
128	<	* them in TCK test suites.</li>
128	>	* them in TCK test suites.
129		*
130	<	* <li> As a convenience, the <tt>main</tt> of this class (JSR166TestCase)
131	<	* runs all JSR166 unit tests.</li>
130	>	* <li>As a convenience, the {@code main} of this class (JSR166TestCase)
131	>	* runs all JSR166 unit tests.
132		*
133		* </ul>
134		*/
135		public class JSR166TestCase extends TestCase {
136	+	private static final boolean useSecurityManager =
137	+	Boolean.getBoolean("jsr166.useSecurityManager");
138	+
139	+	protected static final boolean expensiveTests =
140	+	Boolean.getBoolean("jsr166.expensiveTests");
141	+
142	+	/**
143	+	* If true, also run tests that are not part of the official tck
144	+	* because they test unspecified implementation details.
145	+	*/
146	+	protected static final boolean testImplementationDetails =
147	+	Boolean.getBoolean("jsr166.testImplementationDetails");
148	+
149	+	/**
150	+	* If true, report on stdout all "slow" tests, that is, ones that
151	+	* take more than profileThreshold milliseconds to execute.
152	+	*/
153	+	private static final boolean profileTests =
154	+	Boolean.getBoolean("jsr166.profileTests");
155	+
156	+	/**
157	+	* The number of milliseconds that tests are permitted for
158	+	* execution without being reported, when profileTests is set.
159	+	*/
160	+	private static final long profileThreshold =
161	+	Long.getLong("jsr166.profileThreshold", 100);
162	+
163		/**
164	<	* Runs all JSR166 unit tests using junit.textui.TestRunner
164	>	* The number of repetitions per test (for tickling rare bugs).
165		*/
166	<	public static void main (String[] args) {
167	<	int iters = 1;
168	<	if (args.length > 0)
169	<	iters = Integer.parseInt(args[0]);
170	<	Test s = suite();
171	<	for (int i = 0; i < iters; ++i) {
172	<	junit.textui.TestRunner.run (s);
166	>	private static final int runsPerTest =
167	>	Integer.getInteger("jsr166.runsPerTest", 1);
168	>
169	>	/**
170	>	* The number of repetitions of the test suite (for finding leaks?).
171	>	*/
172	>	private static final int suiteRuns =
173	>	Integer.getInteger("jsr166.suiteRuns", 1);
174	>
175	>	public JSR166TestCase() { super(); }
176	>	public JSR166TestCase(String name) { super(name); }
177	>
178	>	/**
179	>	* A filter for tests to run, matching strings of the form
180	>	* methodName(className), e.g. "testInvokeAll5(ForkJoinPoolTest)"
181	>	* Usefully combined with jsr166.runsPerTest.
182	>	*/
183	>	private static final Pattern methodFilter = methodFilter();
184	>
185	>	private static Pattern methodFilter() {
186	>	String regex = System.getProperty("jsr166.methodFilter");
187	>	return (regex == null) ? null : Pattern.compile(regex);
188	>	}
189	>
190	>	public void runBare() throws Throwable {
191	>	if (methodFilter == null
192	>	|| methodFilter.matcher(toString()).find())
193	>	super.runBare();
194	>	}
195	>
196	>	protected void runTest() throws Throwable {
197	>	for (int i = 0; i < runsPerTest; i++) {
198	>	if (profileTests)
199	>	runTestProfiled();
200	>	else
201	>	super.runTest();
202	>	}
203	>	}
204	>
205	>	protected void runTestProfiled() throws Throwable {
206	>	for (int i = 0; i < 2; i++) {
207	>	long startTime = System.nanoTime();
208	>	super.runTest();
209	>	long elapsedMillis = millisElapsedSince(startTime);
210	>	if (elapsedMillis < profileThreshold)
211	>	break;
212	>	// Never report first run of any test; treat it as a
213	>	// warmup run, notably to trigger all needed classloading,
214	>	if (i > 0)
215	>	System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
216	>	}
217	>	}
218	>
219	>	/**
220	>	* Runs all JSR166 unit tests using junit.textui.TestRunner.
221	>	*/
222	>	public static void main(String[] args) {
223	>	main(suite(), args);
224	>	}
225	>
226	>	/**
227	>	* Runs all unit tests in the given test suite.
228	>	* Actual behavior influenced by jsr166.* system properties.
229	>	*/
230	>	static void main(Test suite, String[] args) {
231	>	if (useSecurityManager) {
232	>	System.err.println("Setting a permissive security manager");
233	>	Policy.setPolicy(permissivePolicy());
234	>	System.setSecurityManager(new SecurityManager());
235	>	}
236	>	for (int i = 0; i < suiteRuns; i++) {
237	>	TestResult result = junit.textui.TestRunner.run(suite);
238	>	if (!result.wasSuccessful())
239	>	System.exit(1);
240		System.gc();
241		System.runFinalization();
242		}
243	<	System.exit(0);
243	>	}
244	>
245	>	public static TestSuite newTestSuite(Object... suiteOrClasses) {
246	>	TestSuite suite = new TestSuite();
247	>	for (Object suiteOrClass : suiteOrClasses) {
248	>	if (suiteOrClass instanceof TestSuite)
249	>	suite.addTest((TestSuite) suiteOrClass);
250	>	else if (suiteOrClass instanceof Class)
251	>	suite.addTest(new TestSuite((Class<?>) suiteOrClass));
252	>	else
253	>	throw new ClassCastException("not a test suite or class");
254	>	}
255	>	return suite;
256	>	}
257	>
258	>	public static void addNamedTestClasses(TestSuite suite,
259	>	String... testClassNames) {
260	>	for (String testClassName : testClassNames) {
261	>	try {
262	>	Class<?> testClass = Class.forName(testClassName);
263	>	Method m = testClass.getDeclaredMethod("suite",
264	>	new Class<?>[0]);
265	>	suite.addTest(newTestSuite((Test)m.invoke(null)));
266	>	} catch (Exception e) {
267	>	throw new Error("Missing test class", e);
268	>	}
269	>	}
270	>	}
271	>
272	>	public static final double JAVA_CLASS_VERSION;
273	>	public static final String JAVA_SPECIFICATION_VERSION;
274	>	static {
275	>	try {
276	>	JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
277	>	new java.security.PrivilegedAction<Double>() {
278	>	public Double run() {
279	>	return Double.valueOf(System.getProperty("java.class.version"));}});
280	>	JAVA_SPECIFICATION_VERSION = java.security.AccessController.doPrivileged(
281	>	new java.security.PrivilegedAction<String>() {
282	>	public String run() {
283	>	return System.getProperty("java.specification.version");}});
284	>	} catch (Throwable t) {
285	>	throw new Error(t);
286	>	}
287	>	}
288	>
289	>	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
290	>	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
291	>	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
292	>	public static boolean atLeastJava9() {
293	>	return JAVA_CLASS_VERSION >= 53.0
294	>	// As of 2015-09, java9 still uses 52.0 class file version
295	>	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?(9|[0-9][0-9])$");
296	>	}
297	>	public static boolean atLeastJava10() {
298	>	return JAVA_CLASS_VERSION >= 54.0
299	>	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?[0-9][0-9]$");
300	>	}
301	>
302	>	/**
303	>	* Collects all JSR166 unit tests as one suite.
304	>	*/
305	>	public static Test suite() {
306	>	// Java7+ test classes
307	>	TestSuite suite = newTestSuite(
308	>	ForkJoinPoolTest.suite(),
309	>	ForkJoinTaskTest.suite(),
310	>	RecursiveActionTest.suite(),
311	>	RecursiveTaskTest.suite(),
312	>	LinkedTransferQueueTest.suite(),
313	>	PhaserTest.suite(),
314	>	ThreadLocalRandomTest.suite(),
315	>	AbstractExecutorServiceTest.suite(),
316	>	AbstractQueueTest.suite(),
317	>	AbstractQueuedSynchronizerTest.suite(),
318	>	AbstractQueuedLongSynchronizerTest.suite(),
319	>	ArrayBlockingQueueTest.suite(),
320	>	ArrayDequeTest.suite(),
321	>	AtomicBooleanTest.suite(),
322	>	AtomicIntegerArrayTest.suite(),
323	>	AtomicIntegerFieldUpdaterTest.suite(),
324	>	AtomicIntegerTest.suite(),
325	>	AtomicLongArrayTest.suite(),
326	>	AtomicLongFieldUpdaterTest.suite(),
327	>	AtomicLongTest.suite(),
328	>	AtomicMarkableReferenceTest.suite(),
329	>	AtomicReferenceArrayTest.suite(),
330	>	AtomicReferenceFieldUpdaterTest.suite(),
331	>	AtomicReferenceTest.suite(),
332	>	AtomicStampedReferenceTest.suite(),
333	>	ConcurrentHashMapTest.suite(),
334	>	ConcurrentLinkedDequeTest.suite(),
335	>	ConcurrentLinkedQueueTest.suite(),
336	>	ConcurrentSkipListMapTest.suite(),
337	>	ConcurrentSkipListSubMapTest.suite(),
338	>	ConcurrentSkipListSetTest.suite(),
339	>	ConcurrentSkipListSubSetTest.suite(),
340	>	CopyOnWriteArrayListTest.suite(),
341	>	CopyOnWriteArraySetTest.suite(),
342	>	CountDownLatchTest.suite(),
343	>	CyclicBarrierTest.suite(),
344	>	DelayQueueTest.suite(),
345	>	EntryTest.suite(),
346	>	ExchangerTest.suite(),
347	>	ExecutorsTest.suite(),
348	>	ExecutorCompletionServiceTest.suite(),
349	>	FutureTaskTest.suite(),
350	>	LinkedBlockingDequeTest.suite(),
351	>	LinkedBlockingQueueTest.suite(),
352	>	LinkedListTest.suite(),
353	>	LockSupportTest.suite(),
354	>	PriorityBlockingQueueTest.suite(),
355	>	PriorityQueueTest.suite(),
356	>	ReentrantLockTest.suite(),
357	>	ReentrantReadWriteLockTest.suite(),
358	>	ScheduledExecutorTest.suite(),
359	>	ScheduledExecutorSubclassTest.suite(),
360	>	SemaphoreTest.suite(),
361	>	SynchronousQueueTest.suite(),
362	>	SystemTest.suite(),
363	>	ThreadLocalTest.suite(),
364	>	ThreadPoolExecutorTest.suite(),
365	>	ThreadPoolExecutorSubclassTest.suite(),
366	>	ThreadTest.suite(),
367	>	TimeUnitTest.suite(),
368	>	TreeMapTest.suite(),
369	>	TreeSetTest.suite(),
370	>	TreeSubMapTest.suite(),
371	>	TreeSubSetTest.suite());
372	>
373	>	// Java8+ test classes
374	>	if (atLeastJava8()) {
375	>	String[] java8TestClassNames = {
376	>	"Atomic8Test",
377	>	"CompletableFutureTest",
378	>	"ConcurrentHashMap8Test",
379	>	"CountedCompleterTest",
380	>	"DoubleAccumulatorTest",
381	>	"DoubleAdderTest",
382	>	"ForkJoinPool8Test",
383	>	"ForkJoinTask8Test",
384	>	"LongAccumulatorTest",
385	>	"LongAdderTest",
386	>	"SplittableRandomTest",
387	>	"StampedLockTest",
388	>	"SubmissionPublisherTest",
389	>	"ThreadLocalRandom8Test",
390	>	};
391	>	addNamedTestClasses(suite, java8TestClassNames);
392	>	}
393	>
394	>	// Java9+ test classes
395	>	if (atLeastJava9()) {
396	>	String[] java9TestClassNames = {
397	>	// Currently empty, but expecting varhandle tests
398	>	};
399	>	addNamedTestClasses(suite, java9TestClassNames);
400	>	}
401	>
402	>	return suite;
403	>	}
404	>
405	>	/** Returns list of junit-style test method names in given class. */
406	>	public static ArrayList<String> testMethodNames(Class<?> testClass) {
407	>	Method[] methods = testClass.getDeclaredMethods();
408	>	ArrayList<String> names = new ArrayList<String>(methods.length);
409	>	for (Method method : methods) {
410	>	if (method.getName().startsWith("test")
411	>	&& Modifier.isPublic(method.getModifiers())
412	>	// method.getParameterCount() requires jdk8+
413	>	&& method.getParameterTypes().length == 0) {
414	>	names.add(method.getName());
415	>	}
416	>	}
417	>	return names;
418		}
419
420		/**
421	<	* Collects all JSR166 unit tests as one suite
421	>	* Returns junit-style testSuite for the given test class, but
422	>	* parameterized by passing extra data to each test.
423		*/
424	<	public static Test suite ( ) {
425	<	TestSuite suite = new TestSuite("JSR166 Unit Tests");
424	>	public static <ExtraData> Test parameterizedTestSuite
425	>	(Class<? extends JSR166TestCase> testClass,
426	>	Class<ExtraData> dataClass,
427	>	ExtraData data) {
428	>	try {
429	>	TestSuite suite = new TestSuite();
430	>	Constructor c =
431	>	testClass.getDeclaredConstructor(dataClass, String.class);
432	>	for (String methodName : testMethodNames(testClass))
433	>	suite.addTest((Test) c.newInstance(data, methodName));
434	>	return suite;
435	>	} catch (Exception e) {
436	>	throw new Error(e);
437	>	}
438	>	}
439
440	<	suite.addTest(new TestSuite(ForkJoinPoolTest.class));
441	<	suite.addTest(new TestSuite(ForkJoinTaskTest.class));
442	<	suite.addTest(new TestSuite(RecursiveActionTest.class));
443	<	suite.addTest(new TestSuite(RecursiveTaskTest.class));
444	<	suite.addTest(new TestSuite(LinkedTransferQueueTest.class));
445	<	suite.addTest(new TestSuite(PhaserTest.class));
446	<	suite.addTest(new TestSuite(ThreadLocalRandomTest.class));
447	<	suite.addTest(new TestSuite(AbstractExecutorServiceTest.class));
448	<	suite.addTest(new TestSuite(AbstractQueueTest.class));
449	<	suite.addTest(new TestSuite(AbstractQueuedSynchronizerTest.class));
450	<	suite.addTest(new TestSuite(AbstractQueuedLongSynchronizerTest.class));
451	<	suite.addTest(new TestSuite(ArrayBlockingQueueTest.class));
452	<	suite.addTest(new TestSuite(ArrayDequeTest.class));
453	<	suite.addTest(new TestSuite(AtomicBooleanTest.class));
454	<	suite.addTest(new TestSuite(AtomicIntegerArrayTest.class));
455	<	suite.addTest(new TestSuite(AtomicIntegerFieldUpdaterTest.class));
456	<	suite.addTest(new TestSuite(AtomicIntegerTest.class));
457	<	suite.addTest(new TestSuite(AtomicLongArrayTest.class));
458	<	suite.addTest(new TestSuite(AtomicLongFieldUpdaterTest.class));
459	<	suite.addTest(new TestSuite(AtomicLongTest.class));
460	<	suite.addTest(new TestSuite(AtomicMarkableReferenceTest.class));
461	<	suite.addTest(new TestSuite(AtomicReferenceArrayTest.class));
462	<	suite.addTest(new TestSuite(AtomicReferenceFieldUpdaterTest.class));
463	<	suite.addTest(new TestSuite(AtomicReferenceTest.class));
135	<	suite.addTest(new TestSuite(AtomicStampedReferenceTest.class));
136	<	suite.addTest(new TestSuite(ConcurrentHashMapTest.class));
137	<	suite.addTest(new TestSuite(ConcurrentLinkedQueueTest.class));
138	<	suite.addTest(new TestSuite(ConcurrentSkipListMapTest.class));
139	<	suite.addTest(new TestSuite(ConcurrentSkipListSubMapTest.class));
140	<	suite.addTest(new TestSuite(ConcurrentSkipListSetTest.class));
141	<	suite.addTest(new TestSuite(ConcurrentSkipListSubSetTest.class));
142	<	suite.addTest(new TestSuite(CopyOnWriteArrayListTest.class));
143	<	suite.addTest(new TestSuite(CopyOnWriteArraySetTest.class));
144	<	suite.addTest(new TestSuite(CountDownLatchTest.class));
145	<	suite.addTest(new TestSuite(CyclicBarrierTest.class));
146	<	suite.addTest(new TestSuite(DelayQueueTest.class));
147	<	suite.addTest(new TestSuite(EntryTest.class));
148	<	suite.addTest(new TestSuite(ExchangerTest.class));
149	<	suite.addTest(new TestSuite(ExecutorsTest.class));
150	<	suite.addTest(new TestSuite(ExecutorCompletionServiceTest.class));
151	<	suite.addTest(new TestSuite(FutureTaskTest.class));
152	<	suite.addTest(new TestSuite(LinkedBlockingDequeTest.class));
153	<	suite.addTest(new TestSuite(LinkedBlockingQueueTest.class));
154	<	suite.addTest(new TestSuite(LinkedListTest.class));
155	<	suite.addTest(new TestSuite(LockSupportTest.class));
156	<	suite.addTest(new TestSuite(PriorityBlockingQueueTest.class));
157	<	suite.addTest(new TestSuite(PriorityQueueTest.class));
158	<	suite.addTest(new TestSuite(ReentrantLockTest.class));
159	<	suite.addTest(new TestSuite(ReentrantReadWriteLockTest.class));
160	<	suite.addTest(new TestSuite(ScheduledExecutorTest.class));
161	<	suite.addTest(new TestSuite(ScheduledExecutorSubclassTest.class));
162	<	suite.addTest(new TestSuite(SemaphoreTest.class));
163	<	suite.addTest(new TestSuite(SynchronousQueueTest.class));
164	<	suite.addTest(new TestSuite(SystemTest.class));
165	<	suite.addTest(new TestSuite(ThreadLocalTest.class));
166	<	suite.addTest(new TestSuite(ThreadPoolExecutorTest.class));
167	<	suite.addTest(new TestSuite(ThreadPoolExecutorSubclassTest.class));
168	<	suite.addTest(new TestSuite(ThreadTest.class));
169	<	suite.addTest(new TestSuite(TimeUnitTest.class));
170	<	suite.addTest(new TestSuite(TreeMapTest.class));
171	<	suite.addTest(new TestSuite(TreeSetTest.class));
172	<	suite.addTest(new TestSuite(TreeSubMapTest.class));
173	<	suite.addTest(new TestSuite(TreeSubSetTest.class));
440	>	/**
441	>	* Returns junit-style testSuite for the jdk8 extension of the
442	>	* given test class, but parameterized by passing extra data to
443	>	* each test.  Uses reflection to allow compilation in jdk7.
444	>	*/
445	>	public static <ExtraData> Test jdk8ParameterizedTestSuite
446	>	(Class<? extends JSR166TestCase> testClass,
447	>	Class<ExtraData> dataClass,
448	>	ExtraData data) {
449	>	if (atLeastJava8()) {
450	>	String name = testClass.getName();
451	>	String name8 = name.replaceAll("Test$", "8Test");
452	>	if (name.equals(name8)) throw new Error(name);
453	>	try {
454	>	return (Test)
455	>	Class.forName(name8)
456	>	.getMethod("testSuite", new Class[] { dataClass })
457	>	.invoke(null, data);
458	>	} catch (Exception e) {
459	>	throw new Error(e);
460	>	}
461	>	} else {
462	>	return new TestSuite();
463	>	}
464
175	–	return suite;
465		}
466
467	+	// Delays for timing-dependent tests, in milliseconds.
468
469		public static long SHORT_DELAY_MS;
470		public static long SMALL_DELAY_MS;
471		public static long MEDIUM_DELAY_MS;
472		public static long LONG_DELAY_MS;
473
184	–
474		/**
475		* Returns the shortest timed delay. This could
476		* be reimplemented to use for example a Property.
#	Line 190 | Line 479 | public class JSR166TestCase extends Test
479		return 50;
480		}
481
193	–
482		/**
483		* Sets delays as multiples of SHORT_DELAY.
484		*/
485	<	protected  void setDelays() {
485	>	protected void setDelays() {
486		SHORT_DELAY_MS = getShortDelay();
487	<	SMALL_DELAY_MS = SHORT_DELAY_MS * 5;
487	>	SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
488		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
489	<	LONG_DELAY_MS = SHORT_DELAY_MS * 50;
489	>	LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
490		}
491
492		/**
493	<	* Flag set true if any threadAssert methods fail
493	>	* Returns a timeout in milliseconds to be used in tests that
494	>	* verify that operations block or time out.
495		*/
496	<	volatile boolean threadFailed;
496	>	long timeoutMillis() {
497	>	return SHORT_DELAY_MS / 4;
498	>	}
499	>
500	>	/**
501	>	* Returns a new Date instance representing a time at least
502	>	* delayMillis milliseconds in the future.
503	>	*/
504	>	Date delayedDate(long delayMillis) {
505	>	// Add 1 because currentTimeMillis is known to round into the past.
506	>	return new Date(System.currentTimeMillis() + delayMillis + 1);
507	>	}
508
509		/**
510	<	* Initializes test to indicate that no thread assertions have failed
510	>	* The first exception encountered if any threadAssertXXX method fails.
511		*/
512	+	private final AtomicReference<Throwable> threadFailure
513	+	= new AtomicReference<Throwable>(null);
514	+
515	+	/**
516	+	* Records an exception so that it can be rethrown later in the test
517	+	* harness thread, triggering a test case failure.  Only the first
518	+	* failure is recorded; subsequent calls to this method from within
519	+	* the same test have no effect.
520	+	*/
521	+	public void threadRecordFailure(Throwable t) {
522	+	threadDump();
523	+	threadFailure.compareAndSet(null, t);
524	+	}
525	+
526		public void setUp() {
527		setDelays();
528	<	threadFailed = false;
528	>	}
529	>
530	>	void tearDownFail(String format, Object... args) {
531	>	String msg = toString() + ": " + String.format(format, args);
532	>	System.err.println(msg);
533	>	threadDump();
534	>	throw new AssertionFailedError(msg);
535		}
536
537		/**
538	<	* Triggers test case failure if any thread assertions have failed
538	>	* Extra checks that get done for all test cases.
539	>	*
540	>	* Triggers test case failure if any thread assertions have failed,
541	>	* by rethrowing, in the test harness thread, any exception recorded
542	>	* earlier by threadRecordFailure.
543	>	*
544	>	* Triggers test case failure if interrupt status is set in the main thread.
545		*/
546	<	public void tearDown() {
547	<	assertFalse(threadFailed);
546	>	public void tearDown() throws Exception {
547	>	Throwable t = threadFailure.getAndSet(null);
548	>	if (t != null) {
549	>	if (t instanceof Error)
550	>	throw (Error) t;
551	>	else if (t instanceof RuntimeException)
552	>	throw (RuntimeException) t;
553	>	else if (t instanceof Exception)
554	>	throw (Exception) t;
555	>	else {
556	>	AssertionFailedError afe =
557	>	new AssertionFailedError(t.toString());
558	>	afe.initCause(t);
559	>	throw afe;
560	>	}
561	>	}
562	>
563	>	if (Thread.interrupted())
564	>	tearDownFail("interrupt status set in main thread");
565	>
566	>	checkForkJoinPoolThreadLeaks();
567	>	}
568	>
569	>	/**
570	>	* Finds missing try { ... } finally { joinPool(e); }
571	>	*/
572	>	void checkForkJoinPoolThreadLeaks() throws InterruptedException {
573	>	Thread[] survivors = new Thread[7];
574	>	int count = Thread.enumerate(survivors);
575	>	for (int i = 0; i < count; i++) {
576	>	Thread thread = survivors[i];
577	>	String name = thread.getName();
578	>	if (name.startsWith("ForkJoinPool-")) {
579	>	// give thread some time to terminate
580	>	thread.join(LONG_DELAY_MS);
581	>	if (thread.isAlive())
582	>	tearDownFail("Found leaked ForkJoinPool thread thread=%s",
583	>	thread);
584	>	}
585	>	}
586	>
587	>	if (!ForkJoinPool.commonPool()
588	>	.awaitQuiescence(LONG_DELAY_MS, MILLISECONDS))
589	>	tearDownFail("ForkJoin common pool thread stuck");
590		}
591
592		/**
593	<	* Fail, also setting status to indicate current testcase should fail
593	>	* Just like fail(reason), but additionally recording (using
594	>	* threadRecordFailure) any AssertionFailedError thrown, so that
595	>	* the current testcase will fail.
596		*/
597		public void threadFail(String reason) {
598	<	threadFailed = true;
599	<	fail(reason);
598	>	try {
599	>	fail(reason);
600	>	} catch (AssertionFailedError t) {
601	>	threadRecordFailure(t);
602	>	throw t;
603	>	}
604		}
605
606		/**
607	<	* If expression not true, set status to indicate current testcase
608	<	* should fail
607	>	* Just like assertTrue(b), but additionally recording (using
608	>	* threadRecordFailure) any AssertionFailedError thrown, so that
609	>	* the current testcase will fail.
610		*/
611		public void threadAssertTrue(boolean b) {
612	<	if (!b) {
238	<	threadFailed = true;
612	>	try {
613		assertTrue(b);
614	+	} catch (AssertionFailedError t) {
615	+	threadRecordFailure(t);
616	+	throw t;
617		}
618		}
619
620		/**
621	<	* If expression not false, set status to indicate current testcase
622	<	* should fail
621	>	* Just like assertFalse(b), but additionally recording (using
622	>	* threadRecordFailure) any AssertionFailedError thrown, so that
623	>	* the current testcase will fail.
624		*/
625		public void threadAssertFalse(boolean b) {
626	<	if (b) {
249	<	threadFailed = true;
626	>	try {
627		assertFalse(b);
628	+	} catch (AssertionFailedError t) {
629	+	threadRecordFailure(t);
630	+	throw t;
631		}
632		}
633
634		/**
635	<	* If argument not null, set status to indicate current testcase
636	<	* should fail
635	>	* Just like assertNull(x), but additionally recording (using
636	>	* threadRecordFailure) any AssertionFailedError thrown, so that
637	>	* the current testcase will fail.
638		*/
639		public void threadAssertNull(Object x) {
640	<	if (x != null) {
260	<	threadFailed = true;
640	>	try {
641		assertNull(x);
642	+	} catch (AssertionFailedError t) {
643	+	threadRecordFailure(t);
644	+	throw t;
645		}
646		}
647
648		/**
649	<	* If arguments not equal, set status to indicate current testcase
650	<	* should fail
649	>	* Just like assertEquals(x, y), but additionally recording (using
650	>	* threadRecordFailure) any AssertionFailedError thrown, so that
651	>	* the current testcase will fail.
652		*/
653		public void threadAssertEquals(long x, long y) {
654	<	if (x != y) {
271	<	threadFailed = true;
654	>	try {
655		assertEquals(x, y);
656	+	} catch (AssertionFailedError t) {
657	+	threadRecordFailure(t);
658	+	throw t;
659		}
660		}
661
662		/**
663	<	* If arguments not equal, set status to indicate current testcase
664	<	* should fail
663	>	* Just like assertEquals(x, y), but additionally recording (using
664	>	* threadRecordFailure) any AssertionFailedError thrown, so that
665	>	* the current testcase will fail.
666		*/
667		public void threadAssertEquals(Object x, Object y) {
668	<	if (x != y && (x == null || !x.equals(y))) {
282	<	threadFailed = true;
668	>	try {
669		assertEquals(x, y);
670	+	} catch (AssertionFailedError fail) {
671	+	threadRecordFailure(fail);
672	+	throw fail;
673	+	} catch (Throwable fail) {
674	+	threadUnexpectedException(fail);
675		}
676		}
677
678		/**
679	<	* threadFail with message "should throw exception"
679	>	* Just like assertSame(x, y), but additionally recording (using
680	>	* threadRecordFailure) any AssertionFailedError thrown, so that
681	>	* the current testcase will fail.
682	>	*/
683	>	public void threadAssertSame(Object x, Object y) {
684	>	try {
685	>	assertSame(x, y);
686	>	} catch (AssertionFailedError fail) {
687	>	threadRecordFailure(fail);
688	>	throw fail;
689	>	}
690	>	}
691	>
692	>	/**
693	>	* Calls threadFail with message "should throw exception".
694		*/
695		public void threadShouldThrow() {
696	<	try {
292	<	threadFailed = true;
293	<	fail("should throw exception");
294	<	} catch (AssertionFailedError e) {
295	<	e.printStackTrace();
296	<	throw e;
297	<	}
696	>	threadFail("should throw exception");
697		}
698
699		/**
700	<	* threadFail with message "Unexpected exception"
700	>	* Calls threadFail with message "should throw" + exceptionName.
701		*/
702	<	public void threadUnexpectedException() {
703	<	threadFailed = true;
305	<	fail("Unexpected exception");
702	>	public void threadShouldThrow(String exceptionName) {
703	>	threadFail("should throw " + exceptionName);
704		}
705
706		/**
707	<	* threadFail with message "Unexpected exception", with argument
707	>	* Records the given exception using {@link #threadRecordFailure},
708	>	* then rethrows the exception, wrapping it in an
709	>	* AssertionFailedError if necessary.
710		*/
711	<	public void threadUnexpectedException(Throwable ex) {
712	<	threadFailed = true;
713	<	ex.printStackTrace();
714	<	fail("Unexpected exception: " + ex);
711	>	public void threadUnexpectedException(Throwable t) {
712	>	threadRecordFailure(t);
713	>	t.printStackTrace();
714	>	if (t instanceof RuntimeException)
715	>	throw (RuntimeException) t;
716	>	else if (t instanceof Error)
717	>	throw (Error) t;
718	>	else {
719	>	AssertionFailedError afe =
720	>	new AssertionFailedError("unexpected exception: " + t);
721	>	afe.initCause(t);
722	>	throw afe;
723	>	}
724		}
725
726		/**
727	<	* Wait out termination of a thread pool or fail doing so
727	>	* Delays, via Thread.sleep, for the given millisecond delay, but
728	>	* if the sleep is shorter than specified, may re-sleep or yield
729	>	* until time elapses.
730		*/
731	<	public void joinPool(ExecutorService exec) {
731	>	static void delay(long millis) throws InterruptedException {
732	>	long startTime = System.nanoTime();
733	>	long ns = millis * 1000 * 1000;
734	>	for (;;) {
735	>	if (millis > 0L)
736	>	Thread.sleep(millis);
737	>	else // too short to sleep
738	>	Thread.yield();
739	>	long d = ns - (System.nanoTime() - startTime);
740	>	if (d > 0L)
741	>	millis = d / (1000 * 1000);
742	>	else
743	>	break;
744	>	}
745	>	}
746	>
747	>	/**
748	>	* Allows use of try-with-resources with per-test thread pools.
749	>	*/
750	>	static class PoolCloser<T extends ExecutorService>
751	>	implements AutoCloseable {
752	>	public final T pool;
753	>	public PoolCloser(T pool) { this.pool = pool; }
754	>	public void close() { joinPool(pool); }
755	>	}
756	>
757	>	/**
758	>	* Waits out termination of a thread pool or fails doing so.
759	>	*/
760	>	static void joinPool(ExecutorService pool) {
761		try {
762	<	exec.shutdown();
763	<	assertTrue(exec.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
762	>	pool.shutdown();
763	>	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS))
764	>	fail("ExecutorService " + pool +
765	>	" did not terminate in a timely manner");
766		} catch (SecurityException ok) {
767		// Allowed in case test doesn't have privs
768	<	} catch (InterruptedException ie) {
769	<	fail("Unexpected exception");
768	>	} catch (InterruptedException fail) {
769	>	fail("Unexpected InterruptedException");
770	>	}
771	>	}
772	>
773	>	/** Like Runnable, but with the freedom to throw anything */
774	>	interface Action { public void run() throws Throwable; }
775	>
776	>	/**
777	>	* Runs all the given actions in parallel, failing if any fail.
778	>	* Useful for running multiple variants of tests that are
779	>	* necessarily individually slow because they must block.
780	>	*/
781	>	void testInParallel(Action ... actions) {
782	>	try (PoolCloser<ExecutorService> poolCloser
783	>	= new PoolCloser<>(Executors.newCachedThreadPool())) {
784	>	ExecutorService pool = poolCloser.pool;
785	>	ArrayList<Future<?>> futures = new ArrayList<>(actions.length);
786	>	for (final Action action : actions)
787	>	futures.add(pool.submit(new CheckedRunnable() {
788	>	public void realRun() throws Throwable { action.run();}}));
789	>	for (Future<?> future : futures)
790	>	try {
791	>	assertNull(future.get(LONG_DELAY_MS, MILLISECONDS));
792	>	} catch (ExecutionException ex) {
793	>	threadUnexpectedException(ex.getCause());
794	>	} catch (Exception ex) {
795	>	threadUnexpectedException(ex);
796	>	}
797	>	}
798	>	}
799	>
800	>	/**
801	>	* A debugging tool to print all stack traces, as jstack does.
802	>	* Uninteresting threads are filtered out.
803	>	*/
804	>	static void threadDump() {
805	>	ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
806	>	System.err.println("------ stacktrace dump start ------");
807	>	for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) {
808	>	String name = info.getThreadName();
809	>	if ("Signal Dispatcher".equals(name))
810	>	continue;
811	>	if ("Reference Handler".equals(name)
812	>	&& info.getLockName().startsWith("java.lang.ref.Reference$Lock"))
813	>	continue;
814	>	if ("Finalizer".equals(name)
815	>	&& info.getLockName().startsWith("java.lang.ref.ReferenceQueue$Lock"))
816	>	continue;
817	>	System.err.print(info);
818	>	}
819	>	System.err.println("------ stacktrace dump end ------");
820	>	}
821	>
822	>	/**
823	>	* Checks that thread does not terminate within the default
824	>	* millisecond delay of {@code timeoutMillis()}.
825	>	*/
826	>	void assertThreadStaysAlive(Thread thread) {
827	>	assertThreadStaysAlive(thread, timeoutMillis());
828	>	}
829	>
830	>	/**
831	>	* Checks that thread does not terminate within the given millisecond delay.
832	>	*/
833	>	void assertThreadStaysAlive(Thread thread, long millis) {
834	>	try {
835	>	// No need to optimize the failing case via Thread.join.
836	>	delay(millis);
837	>	assertTrue(thread.isAlive());
838	>	} catch (InterruptedException fail) {
839	>	fail("Unexpected InterruptedException");
840		}
841		}
842
843	+	/**
844	+	* Checks that the threads do not terminate within the default
845	+	* millisecond delay of {@code timeoutMillis()}.
846	+	*/
847	+	void assertThreadsStayAlive(Thread... threads) {
848	+	assertThreadsStayAlive(timeoutMillis(), threads);
849	+	}
850	+
851	+	/**
852	+	* Checks that the threads do not terminate within the given millisecond delay.
853	+	*/
854	+	void assertThreadsStayAlive(long millis, Thread... threads) {
855	+	try {
856	+	// No need to optimize the failing case via Thread.join.
857	+	delay(millis);
858	+	for (Thread thread : threads)
859	+	assertTrue(thread.isAlive());
860	+	} catch (InterruptedException fail) {
861	+	fail("Unexpected InterruptedException");
862	+	}
863	+	}
864
865		/**
866	<	* fail with message "should throw exception"
866	>	* Checks that future.get times out, with the default timeout of
867	>	* {@code timeoutMillis()}.
868	>	*/
869	>	void assertFutureTimesOut(Future future) {
870	>	assertFutureTimesOut(future, timeoutMillis());
871	>	}
872	>
873	>	/**
874	>	* Checks that future.get times out, with the given millisecond timeout.
875	>	*/
876	>	void assertFutureTimesOut(Future future, long timeoutMillis) {
877	>	long startTime = System.nanoTime();
878	>	try {
879	>	future.get(timeoutMillis, MILLISECONDS);
880	>	shouldThrow();
881	>	} catch (TimeoutException success) {
882	>	} catch (Exception fail) {
883	>	threadUnexpectedException(fail);
884	>	} finally { future.cancel(true); }
885	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
886	>	}
887	>
888	>	/**
889	>	* Fails with message "should throw exception".
890		*/
891		public void shouldThrow() {
892		fail("Should throw exception");
893		}
894
895		/**
896	<	* fail with message "Unexpected exception"
896	>	* Fails with message "should throw " + exceptionName.
897		*/
898	<	public void unexpectedException() {
899	<	fail("Unexpected exception");
898	>	public void shouldThrow(String exceptionName) {
899	>	fail("Should throw " + exceptionName);
900		}
901
346	–
902		/**
903		* The number of elements to place in collections, arrays, etc.
904		*/
905	<	static final int SIZE = 20;
905	>	public static final int SIZE = 20;
906
907		// Some convenient Integer constants
908
909	<	static final Integer zero = new Integer(0);
910	<	static final Integer one = new Integer(1);
911	<	static final Integer two = new Integer(2);
912	<	static final Integer three  = new Integer(3);
913	<	static final Integer four  = new Integer(4);
914	<	static final Integer five  = new Integer(5);
915	<	static final Integer six = new Integer(6);
916	<	static final Integer seven = new Integer(7);
917	<	static final Integer eight = new Integer(8);
918	<	static final Integer nine = new Integer(9);
919	<	static final Integer m1  = new Integer(-1);
920	<	static final Integer m2  = new Integer(-2);
921	<	static final Integer m3  = new Integer(-3);
922	<	static final Integer m4 = new Integer(-4);
923	<	static final Integer m5 = new Integer(-5);
924	<	static final Integer m6 = new Integer(-6);
925	<	static final Integer m10 = new Integer(-10);
909	>	public static final Integer zero  = new Integer(0);
910	>	public static final Integer one   = new Integer(1);
911	>	public static final Integer two   = new Integer(2);
912	>	public static final Integer three = new Integer(3);
913	>	public static final Integer four  = new Integer(4);
914	>	public static final Integer five  = new Integer(5);
915	>	public static final Integer six   = new Integer(6);
916	>	public static final Integer seven = new Integer(7);
917	>	public static final Integer eight = new Integer(8);
918	>	public static final Integer nine  = new Integer(9);
919	>	public static final Integer m1  = new Integer(-1);
920	>	public static final Integer m2  = new Integer(-2);
921	>	public static final Integer m3  = new Integer(-3);
922	>	public static final Integer m4  = new Integer(-4);
923	>	public static final Integer m5  = new Integer(-5);
924	>	public static final Integer m6  = new Integer(-6);
925	>	public static final Integer m10 = new Integer(-10);
926	>
927	>	/**
928	>	* Runs Runnable r with a security policy that permits precisely
929	>	* the specified permissions.  If there is no current security
930	>	* manager, the runnable is run twice, both with and without a
931	>	* security manager.  We require that any security manager permit
932	>	* getPolicy/setPolicy.
933	>	*/
934	>	public void runWithPermissions(Runnable r, Permission... permissions) {
935	>	SecurityManager sm = System.getSecurityManager();
936	>	if (sm == null) {
937	>	r.run();
938	>	}
939	>	runWithSecurityManagerWithPermissions(r, permissions);
940	>	}
941
942	+	/**
943	+	* Runs Runnable r with a security policy that permits precisely
944	+	* the specified permissions.  If there is no current security
945	+	* manager, a temporary one is set for the duration of the
946	+	* Runnable.  We require that any security manager permit
947	+	* getPolicy/setPolicy.
948	+	*/
949	+	public void runWithSecurityManagerWithPermissions(Runnable r,
950	+	Permission... permissions) {
951	+	SecurityManager sm = System.getSecurityManager();
952	+	if (sm == null) {
953	+	Policy savedPolicy = Policy.getPolicy();
954	+	try {
955	+	Policy.setPolicy(permissivePolicy());
956	+	System.setSecurityManager(new SecurityManager());
957	+	runWithSecurityManagerWithPermissions(r, permissions);
958	+	} finally {
959	+	System.setSecurityManager(null);
960	+	Policy.setPolicy(savedPolicy);
961	+	}
962	+	} else {
963	+	Policy savedPolicy = Policy.getPolicy();
964	+	AdjustablePolicy policy = new AdjustablePolicy(permissions);
965	+	Policy.setPolicy(policy);
966	+
967	+	try {
968	+	r.run();
969	+	} finally {
970	+	policy.addPermission(new SecurityPermission("setPolicy"));
971	+	Policy.setPolicy(savedPolicy);
972	+	}
973	+	}
974	+	}
975	+
976	+	/**
977	+	* Runs a runnable without any permissions.
978	+	*/
979	+	public void runWithoutPermissions(Runnable r) {
980	+	runWithPermissions(r);
981	+	}
982
983		/**
984		* A security policy where new permissions can be dynamically added
985		* or all cleared.
986		*/
987	<	static class AdjustablePolicy extends java.security.Policy {
987	>	public static class AdjustablePolicy extends java.security.Policy {
988		Permissions perms = new Permissions();
989	<	AdjustablePolicy() { }
989	>	AdjustablePolicy(Permission... permissions) {
990	>	for (Permission permission : permissions)
991	>	perms.add(permission);
992	>	}
993		void addPermission(Permission perm) { perms.add(perm); }
994		void clearPermissions() { perms = new Permissions(); }
995	<	public PermissionCollection getPermissions(CodeSource cs) {
996	<	return perms;
997	<	}
998	<	public PermissionCollection getPermissions(ProtectionDomain pd) {
999	<	return perms;
1000	<	}
1001	<	public boolean implies(ProtectionDomain pd, Permission p) {
1002	<	return perms.implies(p);
1003	<	}
1004	<	public void refresh() {}
995	>	public PermissionCollection getPermissions(CodeSource cs) {
996	>	return perms;
997	>	}
998	>	public PermissionCollection getPermissions(ProtectionDomain pd) {
999	>	return perms;
1000	>	}
1001	>	public boolean implies(ProtectionDomain pd, Permission p) {
1002	>	return perms.implies(p);
1003	>	}
1004	>	public void refresh() {}
1005	>	public String toString() {
1006	>	List<Permission> ps = new ArrayList<Permission>();
1007	>	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
1008	>	ps.add(e.nextElement());
1009	>	return "AdjustablePolicy with permissions " + ps;
1010	>	}
1011		}
1012
1013	+	/**
1014	+	* Returns a policy containing all the permissions we ever need.
1015	+	*/
1016	+	public static Policy permissivePolicy() {
1017	+	return new AdjustablePolicy
1018	+	// Permissions j.u.c. needs directly
1019	+	(new RuntimePermission("modifyThread"),
1020	+	new RuntimePermission("getClassLoader"),
1021	+	new RuntimePermission("setContextClassLoader"),
1022	+	// Permissions needed to change permissions!
1023	+	new SecurityPermission("getPolicy"),
1024	+	new SecurityPermission("setPolicy"),
1025	+	new RuntimePermission("setSecurityManager"),
1026	+	// Permissions needed by the junit test harness
1027	+	new RuntimePermission("accessDeclaredMembers"),
1028	+	new PropertyPermission("*", "read"),
1029	+	new java.io.FilePermission("<<ALL FILES>>", "read"));
1030	+	}
1031
1032	<	// Some convenient Runnable classes
1032	>	/**
1033	>	* Sleeps until the given time has elapsed.
1034	>	* Throws AssertionFailedError if interrupted.
1035	>	*/
1036	>	void sleep(long millis) {
1037	>	try {
1038	>	delay(millis);
1039	>	} catch (InterruptedException fail) {
1040	>	AssertionFailedError afe =
1041	>	new AssertionFailedError("Unexpected InterruptedException");
1042	>	afe.initCause(fail);
1043	>	throw afe;
1044	>	}
1045	>	}
1046
1047	<	static class NoOpRunnable implements Runnable {
1048	<	public void run() {}
1047	>	/**
1048	>	* Spin-waits up to the specified number of milliseconds for the given
1049	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1050	>	*/
1051	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1052	>	long startTime = System.nanoTime();
1053	>	for (;;) {
1054	>	Thread.State s = thread.getState();
1055	>	if (s == Thread.State.BLOCKED ||
1056	>	s == Thread.State.WAITING ||
1057	>	s == Thread.State.TIMED_WAITING)
1058	>	return;
1059	>	else if (s == Thread.State.TERMINATED)
1060	>	fail("Unexpected thread termination");
1061	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
1062	>	threadAssertTrue(thread.isAlive());
1063	>	return;
1064	>	}
1065	>	Thread.yield();
1066	>	}
1067		}
1068
1069	<	static class NoOpCallable implements Callable {
1070	<	public Object call() { return Boolean.TRUE; }
1069	>	/**
1070	>	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
1071	>	* state: BLOCKED, WAITING, or TIMED_WAITING.
1072	>	*/
1073	>	void waitForThreadToEnterWaitState(Thread thread) {
1074	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
1075	>	}
1076	>
1077	>	/**
1078	>	* Returns the number of milliseconds since time given by
1079	>	* startNanoTime, which must have been previously returned from a
1080	>	* call to {@link System#nanoTime()}.
1081	>	*/
1082	>	static long millisElapsedSince(long startNanoTime) {
1083	>	return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
1084		}
1085
1086	<	static final String TEST_STRING = "a test string";
1086	>	//     void assertTerminatesPromptly(long timeoutMillis, Runnable r) {
1087	>	//         long startTime = System.nanoTime();
1088	>	//         try {
1089	>	//             r.run();
1090	>	//         } catch (Throwable fail) { threadUnexpectedException(fail); }
1091	>	//         if (millisElapsedSince(startTime) > timeoutMillis/2)
1092	>	//             throw new AssertionFailedError("did not return promptly");
1093	>	//     }
1094
1095	<	static class StringTask implements Callable<String> {
1096	<	public String call() { return TEST_STRING; }
1095	>	//     void assertTerminatesPromptly(Runnable r) {
1096	>	//         assertTerminatesPromptly(LONG_DELAY_MS/2, r);
1097	>	//     }
1098	>
1099	>	/**
1100	>	* Checks that timed f.get() returns the expected value, and does not
1101	>	* wait for the timeout to elapse before returning.
1102	>	*/
1103	>	<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
1104	>	long startTime = System.nanoTime();
1105	>	try {
1106	>	assertEquals(expectedValue, f.get(timeoutMillis, MILLISECONDS));
1107	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
1108	>	if (millisElapsedSince(startTime) > timeoutMillis/2)
1109	>	throw new AssertionFailedError("timed get did not return promptly");
1110		}
1111
1112	<	static class NPETask implements Callable<String> {
1113	<	public String call() { throw new NullPointerException(); }
1112	>	<T> void checkTimedGet(Future<T> f, T expectedValue) {
1113	>	checkTimedGet(f, expectedValue, LONG_DELAY_MS);
1114		}
1115
1116	<	static class CallableOne implements Callable<Integer> {
1117	<	public Integer call() { return one; }
1116	>	/**
1117	>	* Returns a new started daemon Thread running the given runnable.
1118	>	*/
1119	>	Thread newStartedThread(Runnable runnable) {
1120	>	Thread t = new Thread(runnable);
1121	>	t.setDaemon(true);
1122	>	t.start();
1123	>	return t;
1124		}
1125
1126	<	class ShortRunnable implements Runnable {
1127	<	public void run() {
1128	<	try {
1129	<	Thread.sleep(SHORT_DELAY_MS);
1130	<	}
1131	<	catch (Exception e) {
1132	<	threadUnexpectedException(e);
1126	>	/**
1127	>	* Waits for the specified time (in milliseconds) for the thread
1128	>	* to terminate (using {@link Thread#join(long)}), else interrupts
1129	>	* the thread (in the hope that it may terminate later) and fails.
1130	>	*/
1131	>	void awaitTermination(Thread t, long timeoutMillis) {
1132	>	try {
1133	>	t.join(timeoutMillis);
1134	>	} catch (InterruptedException fail) {
1135	>	threadUnexpectedException(fail);
1136	>	} finally {
1137	>	if (t.getState() != Thread.State.TERMINATED) {
1138	>	t.interrupt();
1139	>	fail("Test timed out");
1140		}
1141		}
1142		}
1143
1144	<	class ShortInterruptedRunnable implements Runnable {
1145	<	public void run() {
1144	>	/**
1145	>	* Waits for LONG_DELAY_MS milliseconds for the thread to
1146	>	* terminate (using {@link Thread#join(long)}), else interrupts
1147	>	* the thread (in the hope that it may terminate later) and fails.
1148	>	*/
1149	>	void awaitTermination(Thread t) {
1150	>	awaitTermination(t, LONG_DELAY_MS);
1151	>	}
1152	>
1153	>	// Some convenient Runnable classes
1154	>
1155	>	public abstract class CheckedRunnable implements Runnable {
1156	>	protected abstract void realRun() throws Throwable;
1157	>
1158	>	public final void run() {
1159		try {
1160	<	Thread.sleep(SHORT_DELAY_MS);
1161	<	threadShouldThrow();
1162	<	}
436	<	catch (InterruptedException success) {
1160	>	realRun();
1161	>	} catch (Throwable fail) {
1162	>	threadUnexpectedException(fail);
1163		}
1164		}
1165		}
1166
1167	<	class SmallRunnable implements Runnable {
1168	<	public void run() {
1167	>	public abstract class RunnableShouldThrow implements Runnable {
1168	>	protected abstract void realRun() throws Throwable;
1169	>
1170	>	final Class<?> exceptionClass;
1171	>
1172	>	<T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) {
1173	>	this.exceptionClass = exceptionClass;
1174	>	}
1175	>
1176	>	public final void run() {
1177		try {
1178	<	Thread.sleep(SMALL_DELAY_MS);
1179	<	}
1180	<	catch (Exception e) {
1181	<	threadUnexpectedException(e);
1178	>	realRun();
1179	>	threadShouldThrow(exceptionClass.getSimpleName());
1180	>	} catch (Throwable t) {
1181	>	if (! exceptionClass.isInstance(t))
1182	>	threadUnexpectedException(t);
1183		}
1184		}
1185		}
1186
1187	<	class SmallPossiblyInterruptedRunnable implements Runnable {
1188	<	public void run() {
1187	>	public abstract class ThreadShouldThrow extends Thread {
1188	>	protected abstract void realRun() throws Throwable;
1189	>
1190	>	final Class<?> exceptionClass;
1191	>
1192	>	<T extends Throwable> ThreadShouldThrow(Class<T> exceptionClass) {
1193	>	this.exceptionClass = exceptionClass;
1194	>	}
1195	>
1196	>	public final void run() {
1197		try {
1198	<	Thread.sleep(SMALL_DELAY_MS);
1199	<	}
1200	<	catch (Exception e) {
1198	>	realRun();
1199	>	threadShouldThrow(exceptionClass.getSimpleName());
1200	>	} catch (Throwable t) {
1201	>	if (! exceptionClass.isInstance(t))
1202	>	threadUnexpectedException(t);
1203		}
1204		}
1205		}
1206
1207	<	class SmallCallable implements Callable {
1208	<	public Object call() {
1207	>	public abstract class CheckedInterruptedRunnable implements Runnable {
1208	>	protected abstract void realRun() throws Throwable;
1209	>
1210	>	public final void run() {
1211		try {
1212	<	Thread.sleep(SMALL_DELAY_MS);
1213	<	}
1214	<	catch (Exception e) {
1215	<	threadUnexpectedException(e);
1212	>	realRun();
1213	>	threadShouldThrow("InterruptedException");
1214	>	} catch (InterruptedException success) {
1215	>	threadAssertFalse(Thread.interrupted());
1216	>	} catch (Throwable fail) {
1217	>	threadUnexpectedException(fail);
1218		}
470	–	return Boolean.TRUE;
1219		}
1220		}
1221
1222	<	class SmallInterruptedRunnable implements Runnable {
1223	<	public void run() {
1222	>	public abstract class CheckedCallable<T> implements Callable<T> {
1223	>	protected abstract T realCall() throws Throwable;
1224	>
1225	>	public final T call() {
1226		try {
1227	<	Thread.sleep(SMALL_DELAY_MS);
1228	<	threadShouldThrow();
1229	<	}
1230	<	catch (InterruptedException success) {
1227	>	return realCall();
1228	>	} catch (Throwable fail) {
1229	>	threadUnexpectedException(fail);
1230	>	return null;
1231		}
1232		}
1233		}
1234
1235	+	public abstract class CheckedInterruptedCallable<T>
1236	+	implements Callable<T> {
1237	+	protected abstract T realCall() throws Throwable;
1238
1239	<	class MediumRunnable implements Runnable {
487	<	public void run() {
1239	>	public final T call() {
1240		try {
1241	<	Thread.sleep(MEDIUM_DELAY_MS);
1242	<	}
1243	<	catch (Exception e) {
1244	<	threadUnexpectedException(e);
1241	>	T result = realCall();
1242	>	threadShouldThrow("InterruptedException");
1243	>	return result;
1244	>	} catch (InterruptedException success) {
1245	>	threadAssertFalse(Thread.interrupted());
1246	>	} catch (Throwable fail) {
1247	>	threadUnexpectedException(fail);
1248		}
1249	+	return null;
1250		}
1251		}
1252
1253	<	class MediumInterruptedRunnable implements Runnable {
1254	<	public void run() {
1253	>	public static class NoOpRunnable implements Runnable {
1254	>	public void run() {}
1255	>	}
1256	>
1257	>	public static class NoOpCallable implements Callable {
1258	>	public Object call() { return Boolean.TRUE; }
1259	>	}
1260	>
1261	>	public static final String TEST_STRING = "a test string";
1262	>
1263	>	public static class StringTask implements Callable<String> {
1264	>	final String value;
1265	>	public StringTask() { this(TEST_STRING); }
1266	>	public StringTask(String value) { this.value = value; }
1267	>	public String call() { return value; }
1268	>	}
1269	>
1270	>	public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
1271	>	return new CheckedCallable<String>() {
1272	>	protected String realCall() {
1273	>	try {
1274	>	latch.await();
1275	>	} catch (InterruptedException quittingTime) {}
1276	>	return TEST_STRING;
1277	>	}};
1278	>	}
1279	>
1280	>	public Runnable countDowner(final CountDownLatch latch) {
1281	>	return new CheckedRunnable() {
1282	>	public void realRun() throws InterruptedException {
1283	>	latch.countDown();
1284	>	}};
1285	>	}
1286	>
1287	>	public Runnable awaiter(final CountDownLatch latch) {
1288	>	return new CheckedRunnable() {
1289	>	public void realRun() throws InterruptedException {
1290	>	await(latch);
1291	>	}};
1292	>	}
1293	>
1294	>	public void await(CountDownLatch latch) {
1295	>	try {
1296	>	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1297	>	} catch (Throwable fail) {
1298	>	threadUnexpectedException(fail);
1299	>	}
1300	>	}
1301	>
1302	>	public void await(Semaphore semaphore) {
1303	>	try {
1304	>	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1305	>	} catch (Throwable fail) {
1306	>	threadUnexpectedException(fail);
1307	>	}
1308	>	}
1309	>
1310	>	//     /**
1311	>	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1312	>	//      */
1313	>	//     public void await(AtomicBoolean flag) {
1314	>	//         await(flag, LONG_DELAY_MS);
1315	>	//     }
1316	>
1317	>	//     /**
1318	>	//      * Spin-waits up to the specified timeout until flag becomes true.
1319	>	//      */
1320	>	//     public void await(AtomicBoolean flag, long timeoutMillis) {
1321	>	//         long startTime = System.nanoTime();
1322	>	//         while (!flag.get()) {
1323	>	//             if (millisElapsedSince(startTime) > timeoutMillis)
1324	>	//                 throw new AssertionFailedError("timed out");
1325	>	//             Thread.yield();
1326	>	//         }
1327	>	//     }
1328	>
1329	>	public static class NPETask implements Callable<String> {
1330	>	public String call() { throw new NullPointerException(); }
1331	>	}
1332	>
1333	>	public static class CallableOne implements Callable<Integer> {
1334	>	public Integer call() { return one; }
1335	>	}
1336	>
1337	>	public class ShortRunnable extends CheckedRunnable {
1338	>	protected void realRun() throws Throwable {
1339	>	delay(SHORT_DELAY_MS);
1340	>	}
1341	>	}
1342	>
1343	>	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1344	>	protected void realRun() throws InterruptedException {
1345	>	delay(SHORT_DELAY_MS);
1346	>	}
1347	>	}
1348	>
1349	>	public class SmallRunnable extends CheckedRunnable {
1350	>	protected void realRun() throws Throwable {
1351	>	delay(SMALL_DELAY_MS);
1352	>	}
1353	>	}
1354	>
1355	>	public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1356	>	protected void realRun() {
1357		try {
1358	<	Thread.sleep(MEDIUM_DELAY_MS);
1359	<	threadShouldThrow();
502	<	}
503	<	catch (InterruptedException success) {
504	<	}
1358	>	delay(SMALL_DELAY_MS);
1359	>	} catch (InterruptedException ok) {}
1360		}
1361		}
1362
1363	<	class MediumPossiblyInterruptedRunnable implements Runnable {
1364	<	public void run() {
1363	>	public class SmallCallable extends CheckedCallable {
1364	>	protected Object realCall() throws InterruptedException {
1365	>	delay(SMALL_DELAY_MS);
1366	>	return Boolean.TRUE;
1367	>	}
1368	>	}
1369	>
1370	>	public class MediumRunnable extends CheckedRunnable {
1371	>	protected void realRun() throws Throwable {
1372	>	delay(MEDIUM_DELAY_MS);
1373	>	}
1374	>	}
1375	>
1376	>	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1377	>	protected void realRun() throws InterruptedException {
1378	>	delay(MEDIUM_DELAY_MS);
1379	>	}
1380	>	}
1381	>
1382	>	public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1383	>	return new CheckedRunnable() {
1384	>	protected void realRun() {
1385	>	try {
1386	>	delay(timeoutMillis);
1387	>	} catch (InterruptedException ok) {}
1388	>	}};
1389	>	}
1390	>
1391	>	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1392	>	protected void realRun() {
1393		try {
1394	<	Thread.sleep(MEDIUM_DELAY_MS);
1395	<	}
513	<	catch (InterruptedException success) {
514	<	}
1394	>	delay(MEDIUM_DELAY_MS);
1395	>	} catch (InterruptedException ok) {}
1396		}
1397		}
1398
1399	<	class LongPossiblyInterruptedRunnable implements Runnable {
1400	<	public void run() {
1399	>	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1400	>	protected void realRun() {
1401		try {
1402	<	Thread.sleep(LONG_DELAY_MS);
1403	<	}
523	<	catch (InterruptedException success) {
524	<	}
1402	>	delay(LONG_DELAY_MS);
1403	>	} catch (InterruptedException ok) {}
1404		}
1405		}
1406
1407		/**
1408		* For use as ThreadFactory in constructors
1409		*/
1410	<	static class SimpleThreadFactory implements ThreadFactory {
1410	>	public static class SimpleThreadFactory implements ThreadFactory {
1411		public Thread newThread(Runnable r) {
1412		return new Thread(r);
1413		}
1414		}
1415
1416	<	static class TrackedShortRunnable implements Runnable {
1417	<	volatile boolean done = false;
1416	>	public interface TrackedRunnable extends Runnable {
1417	>	boolean isDone();
1418	>	}
1419	>
1420	>	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1421	>	return new TrackedRunnable() {
1422	>	private volatile boolean done = false;
1423	>	public boolean isDone() { return done; }
1424	>	public void run() {
1425	>	try {
1426	>	delay(timeoutMillis);
1427	>	done = true;
1428	>	} catch (InterruptedException ok) {}
1429	>	}
1430	>	};
1431	>	}
1432	>
1433	>	public static class TrackedShortRunnable implements Runnable {
1434	>	public volatile boolean done = false;
1435		public void run() {
1436		try {
1437	<	Thread.sleep(SMALL_DELAY_MS);
1437	>	delay(SHORT_DELAY_MS);
1438		done = true;
1439	<	} catch (Exception e) {
544	<	}
1439	>	} catch (InterruptedException ok) {}
1440		}
1441		}
1442
1443	<	static class TrackedMediumRunnable implements Runnable {
1444	<	volatile boolean done = false;
1443	>	public static class TrackedSmallRunnable implements Runnable {
1444	>	public volatile boolean done = false;
1445		public void run() {
1446		try {
1447	<	Thread.sleep(MEDIUM_DELAY_MS);
1447	>	delay(SMALL_DELAY_MS);
1448		done = true;
1449	<	} catch (Exception e) {
555	<	}
1449	>	} catch (InterruptedException ok) {}
1450		}
1451		}
1452
1453	<	static class TrackedLongRunnable implements Runnable {
1454	<	volatile boolean done = false;
1453	>	public static class TrackedMediumRunnable implements Runnable {
1454	>	public volatile boolean done = false;
1455		public void run() {
1456		try {
1457	<	Thread.sleep(LONG_DELAY_MS);
1457	>	delay(MEDIUM_DELAY_MS);
1458		done = true;
1459	<	} catch (Exception e) {
566	<	}
1459	>	} catch (InterruptedException ok) {}
1460		}
1461		}
1462
1463	<	static class TrackedNoOpRunnable implements Runnable {
1464	<	volatile boolean done = false;
1463	>	public static class TrackedLongRunnable implements Runnable {
1464	>	public volatile boolean done = false;
1465	>	public void run() {
1466	>	try {
1467	>	delay(LONG_DELAY_MS);
1468	>	done = true;
1469	>	} catch (InterruptedException ok) {}
1470	>	}
1471	>	}
1472	>
1473	>	public static class TrackedNoOpRunnable implements Runnable {
1474	>	public volatile boolean done = false;
1475		public void run() {
1476		done = true;
1477		}
1478		}
1479
1480	<	static class TrackedCallable implements Callable {
1481	<	volatile boolean done = false;
1480	>	public static class TrackedCallable implements Callable {
1481	>	public volatile boolean done = false;
1482		public Object call() {
1483		try {
1484	<	Thread.sleep(SMALL_DELAY_MS);
1484	>	delay(SMALL_DELAY_MS);
1485		done = true;
1486	<	} catch (Exception e) {
584	<	}
1486	>	} catch (InterruptedException ok) {}
1487		return Boolean.TRUE;
1488		}
1489		}
1490
1491	+	/**
1492	+	* Analog of CheckedRunnable for RecursiveAction
1493	+	*/
1494	+	public abstract class CheckedRecursiveAction extends RecursiveAction {
1495	+	protected abstract void realCompute() throws Throwable;
1496	+
1497	+	@Override protected final void compute() {
1498	+	try {
1499	+	realCompute();
1500	+	} catch (Throwable fail) {
1501	+	threadUnexpectedException(fail);
1502	+	}
1503	+	}
1504	+	}
1505	+
1506	+	/**
1507	+	* Analog of CheckedCallable for RecursiveTask
1508	+	*/
1509	+	public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1510	+	protected abstract T realCompute() throws Throwable;
1511	+
1512	+	@Override protected final T compute() {
1513	+	try {
1514	+	return realCompute();
1515	+	} catch (Throwable fail) {
1516	+	threadUnexpectedException(fail);
1517	+	return null;
1518	+	}
1519	+	}
1520	+	}
1521
1522		/**
1523		* For use as RejectedExecutionHandler in constructors
1524		*/
1525	<	static class NoOpREHandler implements RejectedExecutionHandler {
1526	<	public void rejectedExecution(Runnable r, ThreadPoolExecutor executor){}
1525	>	public static class NoOpREHandler implements RejectedExecutionHandler {
1526	>	public void rejectedExecution(Runnable r,
1527	>	ThreadPoolExecutor executor) {}
1528		}
1529
1530	+	/**
1531	+	* A CyclicBarrier that uses timed await and fails with
1532	+	* AssertionFailedErrors instead of throwing checked exceptions.
1533	+	*/
1534	+	public class CheckedBarrier extends CyclicBarrier {
1535	+	public CheckedBarrier(int parties) { super(parties); }
1536
1537	+	public int await() {
1538	+	try {
1539	+	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1540	+	} catch (TimeoutException timedOut) {
1541	+	throw new AssertionFailedError("timed out");
1542	+	} catch (Exception fail) {
1543	+	AssertionFailedError afe =
1544	+	new AssertionFailedError("Unexpected exception: " + fail);
1545	+	afe.initCause(fail);
1546	+	throw afe;
1547	+	}
1548	+	}
1549	+	}
1550	+
1551	+	void checkEmpty(BlockingQueue q) {
1552	+	try {
1553	+	assertTrue(q.isEmpty());
1554	+	assertEquals(0, q.size());
1555	+	assertNull(q.peek());
1556	+	assertNull(q.poll());
1557	+	assertNull(q.poll(0, MILLISECONDS));
1558	+	assertEquals(q.toString(), "[]");
1559	+	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1560	+	assertFalse(q.iterator().hasNext());
1561	+	try {
1562	+	q.element();
1563	+	shouldThrow();
1564	+	} catch (NoSuchElementException success) {}
1565	+	try {
1566	+	q.iterator().next();
1567	+	shouldThrow();
1568	+	} catch (NoSuchElementException success) {}
1569	+	try {
1570	+	q.remove();
1571	+	shouldThrow();
1572	+	} catch (NoSuchElementException success) {}
1573	+	} catch (InterruptedException fail) { threadUnexpectedException(fail); }
1574	+	}
1575	+
1576	+	void assertSerialEquals(Object x, Object y) {
1577	+	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1578	+	}
1579	+
1580	+	void assertNotSerialEquals(Object x, Object y) {
1581	+	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1582	+	}
1583	+
1584	+	byte[] serialBytes(Object o) {
1585	+	try {
1586	+	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1587	+	ObjectOutputStream oos = new ObjectOutputStream(bos);
1588	+	oos.writeObject(o);
1589	+	oos.flush();
1590	+	oos.close();
1591	+	return bos.toByteArray();
1592	+	} catch (Throwable fail) {
1593	+	threadUnexpectedException(fail);
1594	+	return new byte[0];
1595	+	}
1596	+	}
1597	+
1598	+	@SuppressWarnings("unchecked")
1599	+	<T> T serialClone(T o) {
1600	+	try {
1601	+	ObjectInputStream ois = new ObjectInputStream
1602	+	(new ByteArrayInputStream(serialBytes(o)));
1603	+	T clone = (T) ois.readObject();
1604	+	assertSame(o.getClass(), clone.getClass());
1605	+	return clone;
1606	+	} catch (Throwable fail) {
1607	+	threadUnexpectedException(fail);
1608	+	return null;
1609	+	}
1610	+	}
1611	+
1612	+	public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1613	+	Runnable... throwingActions) {
1614	+	for (Runnable throwingAction : throwingActions) {
1615	+	boolean threw = false;
1616	+	try { throwingAction.run(); }
1617	+	catch (Throwable t) {
1618	+	threw = true;
1619	+	if (!expectedExceptionClass.isInstance(t)) {
1620	+	AssertionFailedError afe =
1621	+	new AssertionFailedError
1622	+	("Expected " + expectedExceptionClass.getName() +
1623	+	", got " + t.getClass().getName());
1624	+	afe.initCause(t);
1625	+	threadUnexpectedException(afe);
1626	+	}
1627	+	}
1628	+	if (!threw)
1629	+	shouldThrow(expectedExceptionClass.getName());
1630	+	}
1631	+	}
1632	+
1633	+	public void assertIteratorExhausted(Iterator<?> it) {
1634	+	try {
1635	+	it.next();
1636	+	shouldThrow();
1637	+	} catch (NoSuchElementException success) {}
1638	+	assertFalse(it.hasNext());
1639	+	}
1640		}

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