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Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.31 by dl, Sun Apr 13 14:16:25 2008 UTC vs.
Revision 1.135 by jsr166, Fri Jul 3 05:48:30 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.reflect.Constructor;
19	>	import java.lang.reflect.Method;
20	>	import java.lang.reflect.Modifier;
21	>	import java.security.CodeSource;
22	>	import java.security.Permission;
23	>	import java.security.PermissionCollection;
24	>	import java.security.Permissions;
25	>	import java.security.Policy;
26	>	import java.security.ProtectionDomain;
27	>	import java.security.SecurityPermission;
28	>	import java.util.ArrayList;
29	>	import java.util.Arrays;
30	>	import java.util.Date;
31	>	import java.util.Enumeration;
32	>	import java.util.Iterator;
33	>	import java.util.List;
34	>	import java.util.NoSuchElementException;
35	>	import java.util.PropertyPermission;
36	>	import java.util.concurrent.BlockingQueue;
37	>	import java.util.concurrent.Callable;
38	>	import java.util.concurrent.CountDownLatch;
39	>	import java.util.concurrent.CyclicBarrier;
40	>	import java.util.concurrent.ExecutorService;
41	>	import java.util.concurrent.Future;
42	>	import java.util.concurrent.RecursiveAction;
43	>	import java.util.concurrent.RecursiveTask;
44	>	import java.util.concurrent.RejectedExecutionHandler;
45	>	import java.util.concurrent.Semaphore;
46	>	import java.util.concurrent.ThreadFactory;
47	>	import java.util.concurrent.ThreadPoolExecutor;
48	>	import java.util.concurrent.TimeoutException;
49	>	import java.util.concurrent.atomic.AtomicReference;
50	>	import java.util.regex.Pattern;
51	>
52	>	import junit.framework.AssertionFailedError;
53	>	import junit.framework.Test;
54	>	import junit.framework.TestCase;
55	>	import junit.framework.TestResult;
56	>	import junit.framework.TestSuite;
57
58		/**
59		* Base class for JSR166 Junit TCK tests.  Defines some constants,
#	Line 25 | Line 68 | import java.security.*;
68		* <li> All assertions in code running in generated threads must use
69		* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link
70		* #threadAssertEquals}, or {@link #threadAssertNull}, (not
71	<	* <tt>fail</tt>, <tt>assertTrue</tt>, etc.) It is OK (but not
71	>	* {@code fail}, {@code assertTrue}, etc.) It is OK (but not
72		* particularly recommended) for other code to use these forms too.
73		* Only the most typically used JUnit assertion methods are defined
74		* this way, but enough to live with.</li>
75		*
76		* <li> If you override {@link #setUp} or {@link #tearDown}, make sure
77	<	* to invoke <tt>super.setUp</tt> and <tt>super.tearDown</tt> within
77	>	* to invoke {@code super.setUp} and {@code super.tearDown} within
78		* them. These methods are used to clear and check for thread
79		* assertion failures.</li>
80		*
81	<	* <li>All delays and timeouts must use one of the constants <tt>
82	<	* SHORT_DELAY_MS</tt>, <tt> SMALL_DELAY_MS</tt>, <tt> MEDIUM_DELAY_MS</tt>,
83	<	* <tt> LONG_DELAY_MS</tt>. The idea here is that a SHORT is always
81	>	* <li>All delays and timeouts must use one of the constants {@code
82	>	* SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS},
83	>	* {@code LONG_DELAY_MS}. The idea here is that a SHORT is always
84		* discriminable from zero time, and always allows enough time for the
85		* small amounts of computation (creating a thread, calling a few
86		* methods, etc) needed to reach a timeout point. Similarly, a SMALL
#	Line 47 | Line 90 | import java.security.*;
90		* in one spot to rerun tests on slower platforms.</li>
91		*
92		* <li> All threads generated must be joined inside each test case
93	<	* method (or <tt>fail</tt> to do so) before returning from the
94	<	* method. The <tt> joinPool</tt> method can be used to do this when
93	>	* method (or {@code fail} to do so) before returning from the
94	>	* method. The {@code joinPool} method can be used to do this when
95		* using Executors.</li>
96		*
97		* </ol>
98		*
99	<	* <p> <b>Other notes</b>
99	>	* <p><b>Other notes</b>
100		* <ul>
101		*
102		* <li> Usually, there is one testcase method per JSR166 method
#	Line 80 | Line 123 | import java.security.*;
123		* any particular package to simplify things for people integrating
124		* them in TCK test suites.</li>
125		*
126	<	* <li> As a convenience, the <tt>main</tt> of this class (JSR166TestCase)
126	>	* <li> As a convenience, the {@code main} of this class (JSR166TestCase)
127		* runs all JSR166 unit tests.</li>
128		*
129		* </ul>
130		*/
131		public class JSR166TestCase extends TestCase {
132	+	private static final boolean useSecurityManager =
133	+	Boolean.getBoolean("jsr166.useSecurityManager");
134	+
135	+	protected static final boolean expensiveTests =
136	+	Boolean.getBoolean("jsr166.expensiveTests");
137	+
138	+	/**
139	+	* If true, also run tests that are not part of the official tck
140	+	* because they test unspecified implementation details.
141	+	*/
142	+	protected static final boolean testImplementationDetails =
143	+	Boolean.getBoolean("jsr166.testImplementationDetails");
144	+
145	+	/**
146	+	* If true, report on stdout all "slow" tests, that is, ones that
147	+	* take more than profileThreshold milliseconds to execute.
148	+	*/
149	+	private static final boolean profileTests =
150	+	Boolean.getBoolean("jsr166.profileTests");
151	+
152	+	/**
153	+	* The number of milliseconds that tests are permitted for
154	+	* execution without being reported, when profileTests is set.
155	+	*/
156	+	private static final long profileThreshold =
157	+	Long.getLong("jsr166.profileThreshold", 100);
158	+
159	+	/**
160	+	* The number of repetitions per test (for tickling rare bugs).
161	+	*/
162	+	private static final int runsPerTest =
163	+	Integer.getInteger("jsr166.runsPerTest", 1);
164	+
165		/**
166	<	* Runs all JSR166 unit tests using junit.textui.TestRunner
166	>	* The number of repetitions of the test suite (for finding leaks?).
167		*/
168	<	public static void main (String[] args) {
169	<	int iters = 1;
170	<	if (args.length > 0)
171	<	iters = Integer.parseInt(args[0]);
172	<	Test s = suite();
173	<	for (int i = 0; i < iters; ++i) {
174	<	junit.textui.TestRunner.run (s);
168	>	private static final int suiteRuns =
169	>	Integer.getInteger("jsr166.suiteRuns", 1);
170	>
171	>	public JSR166TestCase() { super(); }
172	>	public JSR166TestCase(String name) { super(name); }
173	>
174	>	/**
175	>	* A filter for tests to run, matching strings of the form
176	>	* methodName(className), e.g. "testInvokeAll5(ForkJoinPoolTest)"
177	>	* Usefully combined with jsr166.runsPerTest.
178	>	*/
179	>	private static final Pattern methodFilter = methodFilter();
180	>
181	>	private static Pattern methodFilter() {
182	>	String regex = System.getProperty("jsr166.methodFilter");
183	>	return (regex == null) ? null : Pattern.compile(regex);
184	>	}
185	>
186	>	protected void runTest() throws Throwable {
187	>	if (methodFilter == null
188	>	|| methodFilter.matcher(toString()).find()) {
189	>	for (int i = 0; i < runsPerTest; i++) {
190	>	if (profileTests)
191	>	runTestProfiled();
192	>	else
193	>	super.runTest();
194	>	}
195	>	}
196	>	}
197	>
198	>	protected void runTestProfiled() throws Throwable {
199	>	// Warmup run, notably to trigger all needed classloading.
200	>	super.runTest();
201	>	long t0 = System.nanoTime();
202	>	try {
203	>	super.runTest();
204	>	} finally {
205	>	long elapsedMillis = millisElapsedSince(t0);
206	>	if (elapsedMillis >= profileThreshold)
207	>	System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
208	>	}
209	>	}
210	>
211	>	/**
212	>	* Runs all JSR166 unit tests using junit.textui.TestRunner.
213	>	*/
214	>	public static void main(String[] args) {
215	>	main(suite(), args);
216	>	}
217	>
218	>	/**
219	>	* Runs all unit tests in the given test suite.
220	>	* Actual behavior influenced by jsr166.* system properties.
221	>	*/
222	>	static void main(Test suite, String[] args) {
223	>	if (useSecurityManager) {
224	>	System.err.println("Setting a permissive security manager");
225	>	Policy.setPolicy(permissivePolicy());
226	>	System.setSecurityManager(new SecurityManager());
227	>	}
228	>	for (int i = 0; i < suiteRuns; i++) {
229	>	TestResult result = junit.textui.TestRunner.run(suite);
230	>	if (!result.wasSuccessful())
231	>	System.exit(1);
232		System.gc();
233		System.runFinalization();
234		}
235	<	System.exit(0);
235	>	}
236	>
237	>	public static TestSuite newTestSuite(Object... suiteOrClasses) {
238	>	TestSuite suite = new TestSuite();
239	>	for (Object suiteOrClass : suiteOrClasses) {
240	>	if (suiteOrClass instanceof TestSuite)
241	>	suite.addTest((TestSuite) suiteOrClass);
242	>	else if (suiteOrClass instanceof Class)
243	>	suite.addTest(new TestSuite((Class<?>) suiteOrClass));
244	>	else
245	>	throw new ClassCastException("not a test suite or class");
246	>	}
247	>	return suite;
248	>	}
249	>
250	>	public static void addNamedTestClasses(TestSuite suite,
251	>	String... testClassNames) {
252	>	for (String testClassName : testClassNames) {
253	>	try {
254	>	Class<?> testClass = Class.forName(testClassName);
255	>	Method m = testClass.getDeclaredMethod("suite",
256	>	new Class<?>[0]);
257	>	suite.addTest(newTestSuite((Test)m.invoke(null)));
258	>	} catch (Exception e) {
259	>	throw new Error("Missing test class", e);
260	>	}
261	>	}
262	>	}
263	>
264	>	public static final double JAVA_CLASS_VERSION;
265	>	public static final String JAVA_SPECIFICATION_VERSION;
266	>	static {
267	>	try {
268	>	JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
269	>	new java.security.PrivilegedAction<Double>() {
270	>	public Double run() {
271	>	return Double.valueOf(System.getProperty("java.class.version"));}});
272	>	JAVA_SPECIFICATION_VERSION = java.security.AccessController.doPrivileged(
273	>	new java.security.PrivilegedAction<String>() {
274	>	public String run() {
275	>	return System.getProperty("java.specification.version");}});
276	>	} catch (Throwable t) {
277	>	throw new Error(t);
278	>	}
279	>	}
280	>
281	>	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
282	>	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
283	>	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
284	>	public static boolean atLeastJava9() { return JAVA_CLASS_VERSION >= 53.0; }
285	>
286	>	/**
287	>	* Collects all JSR166 unit tests as one suite.
288	>	*/
289	>	public static Test suite() {
290	>	// Java7+ test classes
291	>	TestSuite suite = newTestSuite(
292	>	ForkJoinPoolTest.suite(),
293	>	ForkJoinTaskTest.suite(),
294	>	RecursiveActionTest.suite(),
295	>	RecursiveTaskTest.suite(),
296	>	LinkedTransferQueueTest.suite(),
297	>	PhaserTest.suite(),
298	>	ThreadLocalRandomTest.suite(),
299	>	AbstractExecutorServiceTest.suite(),
300	>	AbstractQueueTest.suite(),
301	>	AbstractQueuedSynchronizerTest.suite(),
302	>	AbstractQueuedLongSynchronizerTest.suite(),
303	>	ArrayBlockingQueueTest.suite(),
304	>	ArrayDequeTest.suite(),
305	>	AtomicBooleanTest.suite(),
306	>	AtomicIntegerArrayTest.suite(),
307	>	AtomicIntegerFieldUpdaterTest.suite(),
308	>	AtomicIntegerTest.suite(),
309	>	AtomicLongArrayTest.suite(),
310	>	AtomicLongFieldUpdaterTest.suite(),
311	>	AtomicLongTest.suite(),
312	>	AtomicMarkableReferenceTest.suite(),
313	>	AtomicReferenceArrayTest.suite(),
314	>	AtomicReferenceFieldUpdaterTest.suite(),
315	>	AtomicReferenceTest.suite(),
316	>	AtomicStampedReferenceTest.suite(),
317	>	ConcurrentHashMapTest.suite(),
318	>	ConcurrentLinkedDequeTest.suite(),
319	>	ConcurrentLinkedQueueTest.suite(),
320	>	ConcurrentSkipListMapTest.suite(),
321	>	ConcurrentSkipListSubMapTest.suite(),
322	>	ConcurrentSkipListSetTest.suite(),
323	>	ConcurrentSkipListSubSetTest.suite(),
324	>	CopyOnWriteArrayListTest.suite(),
325	>	CopyOnWriteArraySetTest.suite(),
326	>	CountDownLatchTest.suite(),
327	>	CyclicBarrierTest.suite(),
328	>	DelayQueueTest.suite(),
329	>	EntryTest.suite(),
330	>	ExchangerTest.suite(),
331	>	ExecutorsTest.suite(),
332	>	ExecutorCompletionServiceTest.suite(),
333	>	FutureTaskTest.suite(),
334	>	LinkedBlockingDequeTest.suite(),
335	>	LinkedBlockingQueueTest.suite(),
336	>	LinkedListTest.suite(),
337	>	LockSupportTest.suite(),
338	>	PriorityBlockingQueueTest.suite(),
339	>	PriorityQueueTest.suite(),
340	>	ReentrantLockTest.suite(),
341	>	ReentrantReadWriteLockTest.suite(),
342	>	ScheduledExecutorTest.suite(),
343	>	ScheduledExecutorSubclassTest.suite(),
344	>	SemaphoreTest.suite(),
345	>	SynchronousQueueTest.suite(),
346	>	SystemTest.suite(),
347	>	ThreadLocalTest.suite(),
348	>	ThreadPoolExecutorTest.suite(),
349	>	ThreadPoolExecutorSubclassTest.suite(),
350	>	ThreadTest.suite(),
351	>	TimeUnitTest.suite(),
352	>	TreeMapTest.suite(),
353	>	TreeSetTest.suite(),
354	>	TreeSubMapTest.suite(),
355	>	TreeSubSetTest.suite());
356	>
357	>	// Java8+ test classes
358	>	if (atLeastJava8()) {
359	>	String[] java8TestClassNames = {
360	>	"Atomic8Test",
361	>	"CompletableFutureTest",
362	>	"ConcurrentHashMap8Test",
363	>	"CountedCompleterTest",
364	>	"DoubleAccumulatorTest",
365	>	"DoubleAdderTest",
366	>	"ForkJoinPool8Test",
367	>	"ForkJoinTask8Test",
368	>	"LongAccumulatorTest",
369	>	"LongAdderTest",
370	>	"SplittableRandomTest",
371	>	"StampedLockTest",
372	>	"ThreadLocalRandom8Test",
373	>	};
374	>	addNamedTestClasses(suite, java8TestClassNames);
375	>	}
376	>
377	>	// Java9+ test classes
378	>	if (atLeastJava9()) {
379	>	String[] java9TestClassNames = {
380	>	"ThreadPoolExecutor9Test",
381	>	};
382	>	addNamedTestClasses(suite, java9TestClassNames);
383	>	}
384	>
385	>	return suite;
386	>	}
387	>
388	>	/** Returns list of junit-style test method names in given class. */
389	>	public static ArrayList<String> testMethodNames(Class<?> testClass) {
390	>	Method[] methods = testClass.getDeclaredMethods();
391	>	ArrayList<String> names = new ArrayList<String>(methods.length);
392	>	for (Method method : methods) {
393	>	if (method.getName().startsWith("test")
394	>	&& Modifier.isPublic(method.getModifiers())
395	>	// method.getParameterCount() requires jdk8+
396	>	&& method.getParameterTypes().length == 0) {
397	>	names.add(method.getName());
398	>	}
399	>	}
400	>	return names;
401		}
402
403		/**
404	<	* Collects all JSR166 unit tests as one suite
404	>	* Returns junit-style testSuite for the given test class, but
405	>	* parameterized by passing extra data to each test.
406		*/
407	<	public static Test suite ( ) {
408	<	TestSuite suite = new TestSuite("JSR166 Unit Tests");
407	>	public static <ExtraData> Test parameterizedTestSuite
408	>	(Class<? extends JSR166TestCase> testClass,
409	>	Class<ExtraData> dataClass,
410	>	ExtraData data) {
411	>	try {
412	>	TestSuite suite = new TestSuite();
413	>	Constructor c =
414	>	testClass.getDeclaredConstructor(dataClass, String.class);
415	>	for (String methodName : testMethodNames(testClass))
416	>	suite.addTest((Test) c.newInstance(data, methodName));
417	>	return suite;
418	>	} catch (Exception e) {
419	>	throw new Error(e);
420	>	}
421	>	}
422
423	<	suite.addTest(new TestSuite(AbstractExecutorServiceTest.class));
424	<	suite.addTest(new TestSuite(AbstractQueueTest.class));
425	<	suite.addTest(new TestSuite(AbstractQueuedSynchronizerTest.class));
426	<	suite.addTest(new TestSuite(AbstractQueuedLongSynchronizerTest.class));
427	<	suite.addTest(new TestSuite(ArrayBlockingQueueTest.class));
428	<	suite.addTest(new TestSuite(ArrayDequeTest.class));
429	<	suite.addTest(new TestSuite(AtomicBooleanTest.class));
430	<	suite.addTest(new TestSuite(AtomicIntegerArrayTest.class));
431	<	suite.addTest(new TestSuite(AtomicIntegerFieldUpdaterTest.class));
432	<	suite.addTest(new TestSuite(AtomicIntegerTest.class));
433	<	suite.addTest(new TestSuite(AtomicLongArrayTest.class));
434	<	suite.addTest(new TestSuite(AtomicLongFieldUpdaterTest.class));
435	<	suite.addTest(new TestSuite(AtomicLongTest.class));
436	<	suite.addTest(new TestSuite(AtomicMarkableReferenceTest.class));
437	<	suite.addTest(new TestSuite(AtomicReferenceArrayTest.class));
438	<	suite.addTest(new TestSuite(AtomicReferenceFieldUpdaterTest.class));
439	<	suite.addTest(new TestSuite(AtomicReferenceTest.class));
440	<	suite.addTest(new TestSuite(AtomicStampedReferenceTest.class));
441	<	suite.addTest(new TestSuite(ConcurrentHashMapTest.class));
442	<	suite.addTest(new TestSuite(ConcurrentLinkedQueueTest.class));
443	<	suite.addTest(new TestSuite(ConcurrentSkipListMapTest.class));
444	<	suite.addTest(new TestSuite(ConcurrentSkipListSubMapTest.class));
445	<	suite.addTest(new TestSuite(ConcurrentSkipListSetTest.class));
446	<	suite.addTest(new TestSuite(ConcurrentSkipListSubSetTest.class));
135	<	suite.addTest(new TestSuite(CopyOnWriteArrayListTest.class));
136	<	suite.addTest(new TestSuite(CopyOnWriteArraySetTest.class));
137	<	suite.addTest(new TestSuite(CountDownLatchTest.class));
138	<	suite.addTest(new TestSuite(CyclicBarrierTest.class));
139	<	suite.addTest(new TestSuite(DelayQueueTest.class));
140	<	suite.addTest(new TestSuite(EntryTest.class));
141	<	suite.addTest(new TestSuite(ExchangerTest.class));
142	<	suite.addTest(new TestSuite(ExecutorsTest.class));
143	<	suite.addTest(new TestSuite(ExecutorCompletionServiceTest.class));
144	<	suite.addTest(new TestSuite(FutureTaskTest.class));
145	<	suite.addTest(new TestSuite(LinkedBlockingDequeTest.class));
146	<	suite.addTest(new TestSuite(LinkedBlockingQueueTest.class));
147	<	suite.addTest(new TestSuite(LinkedListTest.class));
148	<	suite.addTest(new TestSuite(LockSupportTest.class));
149	<	suite.addTest(new TestSuite(PriorityBlockingQueueTest.class));
150	<	suite.addTest(new TestSuite(PriorityQueueTest.class));
151	<	suite.addTest(new TestSuite(ReentrantLockTest.class));
152	<	suite.addTest(new TestSuite(ReentrantReadWriteLockTest.class));
153	<	suite.addTest(new TestSuite(ScheduledExecutorTest.class));
154	<	suite.addTest(new TestSuite(ScheduledExecutorSubclassTest.class));
155	<	suite.addTest(new TestSuite(SemaphoreTest.class));
156	<	suite.addTest(new TestSuite(SynchronousQueueTest.class));
157	<	suite.addTest(new TestSuite(SystemTest.class));
158	<	suite.addTest(new TestSuite(ThreadLocalTest.class));
159	<	suite.addTest(new TestSuite(ThreadPoolExecutorTest.class));
160	<	suite.addTest(new TestSuite(ThreadPoolExecutorSubclassTest.class));
161	<	suite.addTest(new TestSuite(ThreadTest.class));
162	<	suite.addTest(new TestSuite(TimeUnitTest.class));
163	<	suite.addTest(new TestSuite(TreeMapTest.class));
164	<	suite.addTest(new TestSuite(TreeSetTest.class));
165	<	suite.addTest(new TestSuite(TreeSubMapTest.class));
166	<	suite.addTest(new TestSuite(TreeSubSetTest.class));
423	>	/**
424	>	* Returns junit-style testSuite for the jdk8 extension of the
425	>	* given test class, but parameterized by passing extra data to
426	>	* each test.  Uses reflection to allow compilation in jdk7.
427	>	*/
428	>	public static <ExtraData> Test jdk8ParameterizedTestSuite
429	>	(Class<? extends JSR166TestCase> testClass,
430	>	Class<ExtraData> dataClass,
431	>	ExtraData data) {
432	>	if (atLeastJava8()) {
433	>	String name = testClass.getName();
434	>	String name8 = name.replaceAll("Test$", "8Test");
435	>	if (name.equals(name8)) throw new Error(name);
436	>	try {
437	>	return (Test)
438	>	Class.forName(name8)
439	>	.getMethod("testSuite", new Class[] { dataClass })
440	>	.invoke(null, data);
441	>	} catch (Exception e) {
442	>	throw new Error(e);
443	>	}
444	>	} else {
445	>	return new TestSuite();
446	>	}
447
168	–	return suite;
448		}
449
450	+	// Delays for timing-dependent tests, in milliseconds.
451
452		public static long SHORT_DELAY_MS;
453		public static long SMALL_DELAY_MS;
454		public static long MEDIUM_DELAY_MS;
455		public static long LONG_DELAY_MS;
456
177	–
457		/**
458		* Returns the shortest timed delay. This could
459		* be reimplemented to use for example a Property.
#	Line 183 | Line 462 | public class JSR166TestCase extends Test
462		return 50;
463		}
464
186	–
465		/**
466		* Sets delays as multiples of SHORT_DELAY.
467		*/
468	<	protected  void setDelays() {
468	>	protected void setDelays() {
469		SHORT_DELAY_MS = getShortDelay();
470	<	SMALL_DELAY_MS = SHORT_DELAY_MS * 5;
470	>	SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
471		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
472	<	LONG_DELAY_MS = SHORT_DELAY_MS * 50;
472	>	LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
473		}
474
475		/**
476	<	* Flag set true if any threadAssert methods fail
476	>	* Returns a timeout in milliseconds to be used in tests that
477	>	* verify that operations block or time out.
478		*/
479	<	volatile boolean threadFailed;
479	>	long timeoutMillis() {
480	>	return SHORT_DELAY_MS / 4;
481	>	}
482
483		/**
484	<	* Initializes test to indicate that no thread assertions have failed
484	>	* Returns a new Date instance representing a time at least
485	>	* delayMillis milliseconds in the future.
486		*/
487	+	Date delayedDate(long delayMillis) {
488	+	// Add 1 because currentTimeMillis is known to round into the past.
489	+	return new Date(System.currentTimeMillis() + delayMillis + 1);
490	+	}
491	+
492	+	/**
493	+	* The first exception encountered if any threadAssertXXX method fails.
494	+	*/
495	+	private final AtomicReference<Throwable> threadFailure
496	+	= new AtomicReference<Throwable>(null);
497	+
498	+	/**
499	+	* Records an exception so that it can be rethrown later in the test
500	+	* harness thread, triggering a test case failure.  Only the first
501	+	* failure is recorded; subsequent calls to this method from within
502	+	* the same test have no effect.
503	+	*/
504	+	public void threadRecordFailure(Throwable t) {
505	+	threadFailure.compareAndSet(null, t);
506	+	}
507	+
508		public void setUp() {
509		setDelays();
207	–	threadFailed = false;
510		}
511
512		/**
513	<	* Triggers test case failure if any thread assertions have failed
513	>	* Extra checks that get done for all test cases.
514	>	*
515	>	* Triggers test case failure if any thread assertions have failed,
516	>	* by rethrowing, in the test harness thread, any exception recorded
517	>	* earlier by threadRecordFailure.
518	>	*
519	>	* Triggers test case failure if interrupt status is set in the main thread.
520	>	*/
521	>	public void tearDown() throws Exception {
522	>	Throwable t = threadFailure.getAndSet(null);
523	>	if (t != null) {
524	>	if (t instanceof Error)
525	>	throw (Error) t;
526	>	else if (t instanceof RuntimeException)
527	>	throw (RuntimeException) t;
528	>	else if (t instanceof Exception)
529	>	throw (Exception) t;
530	>	else {
531	>	AssertionFailedError afe =
532	>	new AssertionFailedError(t.toString());
533	>	afe.initCause(t);
534	>	throw afe;
535	>	}
536	>	}
537	>
538	>	if (Thread.interrupted())
539	>	throw new AssertionFailedError("interrupt status set in main thread");
540	>
541	>	checkForkJoinPoolThreadLeaks();
542	>	}
543	>
544	>	/**
545	>	* Finds missing try { ... } finally { joinPool(e); }
546		*/
547	<	public void tearDown() {
548	<	assertFalse(threadFailed);
547	>	void checkForkJoinPoolThreadLeaks() throws InterruptedException {
548	>	Thread[] survivors = new Thread[5];
549	>	int count = Thread.enumerate(survivors);
550	>	for (int i = 0; i < count; i++) {
551	>	Thread thread = survivors[i];
552	>	String name = thread.getName();
553	>	if (name.startsWith("ForkJoinPool-")) {
554	>	// give thread some time to terminate
555	>	thread.join(LONG_DELAY_MS);
556	>	if (!thread.isAlive()) continue;
557	>	throw new AssertionFailedError
558	>	(String.format("Found leaked ForkJoinPool thread test=%s thread=%s%n",
559	>	toString(), name));
560	>	}
561	>	}
562		}
563
564		/**
565	<	* Fail, also setting status to indicate current testcase should fail
565	>	* Just like fail(reason), but additionally recording (using
566	>	* threadRecordFailure) any AssertionFailedError thrown, so that
567	>	* the current testcase will fail.
568		*/
569		public void threadFail(String reason) {
570	<	threadFailed = true;
571	<	fail(reason);
570	>	try {
571	>	fail(reason);
572	>	} catch (AssertionFailedError t) {
573	>	threadRecordFailure(t);
574	>	fail(reason);
575	>	}
576		}
577
578		/**
579	<	* If expression not true, set status to indicate current testcase
580	<	* should fail
579	>	* Just like assertTrue(b), but additionally recording (using
580	>	* threadRecordFailure) any AssertionFailedError thrown, so that
581	>	* the current testcase will fail.
582		*/
583		public void threadAssertTrue(boolean b) {
584	<	if (!b) {
231	<	threadFailed = true;
584	>	try {
585		assertTrue(b);
586	+	} catch (AssertionFailedError t) {
587	+	threadRecordFailure(t);
588	+	throw t;
589		}
590		}
591
592		/**
593	<	* If expression not false, set status to indicate current testcase
594	<	* should fail
593	>	* Just like assertFalse(b), but additionally recording (using
594	>	* threadRecordFailure) any AssertionFailedError thrown, so that
595	>	* the current testcase will fail.
596		*/
597		public void threadAssertFalse(boolean b) {
598	<	if (b) {
242	<	threadFailed = true;
598	>	try {
599		assertFalse(b);
600	+	} catch (AssertionFailedError t) {
601	+	threadRecordFailure(t);
602	+	throw t;
603		}
604		}
605
606		/**
607	<	* If argument not null, set status to indicate current testcase
608	<	* should fail
607	>	* Just like assertNull(x), but additionally recording (using
608	>	* threadRecordFailure) any AssertionFailedError thrown, so that
609	>	* the current testcase will fail.
610		*/
611		public void threadAssertNull(Object x) {
612	<	if (x != null) {
253	<	threadFailed = true;
612	>	try {
613		assertNull(x);
614	+	} catch (AssertionFailedError t) {
615	+	threadRecordFailure(t);
616	+	throw t;
617		}
618		}
619
620		/**
621	<	* If arguments not equal, set status to indicate current testcase
622	<	* should fail
621	>	* Just like assertEquals(x, y), but additionally recording (using
622	>	* threadRecordFailure) any AssertionFailedError thrown, so that
623	>	* the current testcase will fail.
624		*/
625		public void threadAssertEquals(long x, long y) {
626	<	if (x != y) {
264	<	threadFailed = true;
626	>	try {
627		assertEquals(x, y);
628	+	} catch (AssertionFailedError t) {
629	+	threadRecordFailure(t);
630	+	throw t;
631		}
632		}
633
634		/**
635	<	* If arguments not equal, set status to indicate current testcase
636	<	* should fail
635	>	* Just like assertEquals(x, y), but additionally recording (using
636	>	* threadRecordFailure) any AssertionFailedError thrown, so that
637	>	* the current testcase will fail.
638		*/
639		public void threadAssertEquals(Object x, Object y) {
640	<	if (x != y && (x == null || !x.equals(y))) {
275	<	threadFailed = true;
640	>	try {
641		assertEquals(x, y);
642	+	} catch (AssertionFailedError fail) {
643	+	threadRecordFailure(fail);
644	+	throw fail;
645	+	} catch (Throwable fail) {
646	+	threadUnexpectedException(fail);
647	+	}
648	+	}
649	+
650	+	/**
651	+	* Just like assertSame(x, y), but additionally recording (using
652	+	* threadRecordFailure) any AssertionFailedError thrown, so that
653	+	* the current testcase will fail.
654	+	*/
655	+	public void threadAssertSame(Object x, Object y) {
656	+	try {
657	+	assertSame(x, y);
658	+	} catch (AssertionFailedError fail) {
659	+	threadRecordFailure(fail);
660	+	throw fail;
661		}
662		}
663
664		/**
665	<	* threadFail with message "should throw exception"
666	<	*/
665	>	* Calls threadFail with message "should throw exception".
666	>	*/
667		public void threadShouldThrow() {
668	<	try {
285	<	threadFailed = true;
286	<	fail("should throw exception");
287	<	} catch (AssertionFailedError e) {
288	<	e.printStackTrace();
289	<	throw e;
290	<	}
668	>	threadFail("should throw exception");
669		}
670
671		/**
672	<	* threadFail with message "Unexpected exception"
672	>	* Calls threadFail with message "should throw" + exceptionName.
673		*/
674	<	public void threadUnexpectedException() {
675	<	threadFailed = true;
298	<	fail("Unexpected exception");
674	>	public void threadShouldThrow(String exceptionName) {
675	>	threadFail("should throw " + exceptionName);
676		}
677
678		/**
679	<	* threadFail with message "Unexpected exception", with argument
679	>	* Records the given exception using {@link #threadRecordFailure},
680	>	* then rethrows the exception, wrapping it in an
681	>	* AssertionFailedError if necessary.
682		*/
683	<	public void threadUnexpectedException(Throwable ex) {
684	<	threadFailed = true;
685	<	ex.printStackTrace();
686	<	fail("Unexpected exception: " + ex);
683	>	public void threadUnexpectedException(Throwable t) {
684	>	threadRecordFailure(t);
685	>	t.printStackTrace();
686	>	if (t instanceof RuntimeException)
687	>	throw (RuntimeException) t;
688	>	else if (t instanceof Error)
689	>	throw (Error) t;
690	>	else {
691	>	AssertionFailedError afe =
692	>	new AssertionFailedError("unexpected exception: " + t);
693	>	afe.initCause(t);
694	>	throw afe;
695	>	}
696		}
697
698		/**
699	<	* Wait out termination of a thread pool or fail doing so
699	>	* Delays, via Thread.sleep, for the given millisecond delay, but
700	>	* if the sleep is shorter than specified, may re-sleep or yield
701	>	* until time elapses.
702		*/
703	<	public void joinPool(ExecutorService exec) {
703	>	static void delay(long millis) throws InterruptedException {
704	>	long startTime = System.nanoTime();
705	>	long ns = millis * 1000 * 1000;
706	>	for (;;) {
707	>	if (millis > 0L)
708	>	Thread.sleep(millis);
709	>	else // too short to sleep
710	>	Thread.yield();
711	>	long d = ns - (System.nanoTime() - startTime);
712	>	if (d > 0L)
713	>	millis = d / (1000 * 1000);
714	>	else
715	>	break;
716	>	}
717	>	}
718	>
719	>	/**
720	>	* Waits out termination of a thread pool or fails doing so.
721	>	*/
722	>	void joinPool(ExecutorService exec) {
723		try {
724		exec.shutdown();
725	<	assertTrue(exec.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
726	<	} catch(SecurityException ok) {
725	>	if (!exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS))
726	>	fail("ExecutorService " + exec +
727	>	" did not terminate in a timely manner");
728	>	} catch (SecurityException ok) {
729		// Allowed in case test doesn't have privs
730	<	} catch(InterruptedException ie) {
731	<	fail("Unexpected exception");
730	>	} catch (InterruptedException fail) {
731	>	fail("Unexpected InterruptedException");
732		}
733		}
734
735	+	/**
736	+	* A debugging tool to print all stack traces, as jstack does.
737	+	*/
738	+	static void printAllStackTraces() {
739	+	for (ThreadInfo info :
740	+	ManagementFactory.getThreadMXBean()
741	+	.dumpAllThreads(true, true))
742	+	System.err.print(info);
743	+	}
744	+
745	+	/**
746	+	* Checks that thread does not terminate within the default
747	+	* millisecond delay of {@code timeoutMillis()}.
748	+	*/
749	+	void assertThreadStaysAlive(Thread thread) {
750	+	assertThreadStaysAlive(thread, timeoutMillis());
751	+	}
752
753		/**
754	<	* fail with message "should throw exception"
754	>	* Checks that thread does not terminate within the given millisecond delay.
755	>	*/
756	>	void assertThreadStaysAlive(Thread thread, long millis) {
757	>	try {
758	>	// No need to optimize the failing case via Thread.join.
759	>	delay(millis);
760	>	assertTrue(thread.isAlive());
761	>	} catch (InterruptedException fail) {
762	>	fail("Unexpected InterruptedException");
763	>	}
764	>	}
765	>
766	>	/**
767	>	* Checks that the threads do not terminate within the default
768	>	* millisecond delay of {@code timeoutMillis()}.
769	>	*/
770	>	void assertThreadsStayAlive(Thread... threads) {
771	>	assertThreadsStayAlive(timeoutMillis(), threads);
772	>	}
773	>
774	>	/**
775	>	* Checks that the threads do not terminate within the given millisecond delay.
776	>	*/
777	>	void assertThreadsStayAlive(long millis, Thread... threads) {
778	>	try {
779	>	// No need to optimize the failing case via Thread.join.
780	>	delay(millis);
781	>	for (Thread thread : threads)
782	>	assertTrue(thread.isAlive());
783	>	} catch (InterruptedException fail) {
784	>	fail("Unexpected InterruptedException");
785	>	}
786	>	}
787	>
788	>	/**
789	>	* Checks that future.get times out, with the default timeout of
790	>	* {@code timeoutMillis()}.
791	>	*/
792	>	void assertFutureTimesOut(Future future) {
793	>	assertFutureTimesOut(future, timeoutMillis());
794	>	}
795	>
796	>	/**
797	>	* Checks that future.get times out, with the given millisecond timeout.
798	>	*/
799	>	void assertFutureTimesOut(Future future, long timeoutMillis) {
800	>	long startTime = System.nanoTime();
801	>	try {
802	>	future.get(timeoutMillis, MILLISECONDS);
803	>	shouldThrow();
804	>	} catch (TimeoutException success) {
805	>	} catch (Exception fail) {
806	>	threadUnexpectedException(fail);
807	>	} finally { future.cancel(true); }
808	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
809	>	}
810	>
811	>	/**
812	>	* Fails with message "should throw exception".
813		*/
814		public void shouldThrow() {
815		fail("Should throw exception");
816		}
817
818		/**
819	<	* fail with message "Unexpected exception"
819	>	* Fails with message "should throw " + exceptionName.
820		*/
821	<	public void unexpectedException() {
822	<	fail("Unexpected exception");
821	>	public void shouldThrow(String exceptionName) {
822	>	fail("Should throw " + exceptionName);
823		}
824
339	–
825		/**
826		* The number of elements to place in collections, arrays, etc.
827		*/
828	<	static final int SIZE = 20;
828	>	public static final int SIZE = 20;
829
830		// Some convenient Integer constants
831
832	<	static final Integer zero = new Integer(0);
833	<	static final Integer one = new Integer(1);
834	<	static final Integer two = new Integer(2);
835	<	static final Integer three  = new Integer(3);
836	<	static final Integer four  = new Integer(4);
837	<	static final Integer five  = new Integer(5);
838	<	static final Integer six = new Integer(6);
839	<	static final Integer seven = new Integer(7);
840	<	static final Integer eight = new Integer(8);
841	<	static final Integer nine = new Integer(9);
842	<	static final Integer m1  = new Integer(-1);
843	<	static final Integer m2  = new Integer(-2);
844	<	static final Integer m3  = new Integer(-3);
845	<	static final Integer m4 = new Integer(-4);
846	<	static final Integer m5 = new Integer(-5);
847	<	static final Integer m6 = new Integer(-6);
848	<	static final Integer m10 = new Integer(-10);
832	>	public static final Integer zero  = new Integer(0);
833	>	public static final Integer one   = new Integer(1);
834	>	public static final Integer two   = new Integer(2);
835	>	public static final Integer three = new Integer(3);
836	>	public static final Integer four  = new Integer(4);
837	>	public static final Integer five  = new Integer(5);
838	>	public static final Integer six   = new Integer(6);
839	>	public static final Integer seven = new Integer(7);
840	>	public static final Integer eight = new Integer(8);
841	>	public static final Integer nine  = new Integer(9);
842	>	public static final Integer m1  = new Integer(-1);
843	>	public static final Integer m2  = new Integer(-2);
844	>	public static final Integer m3  = new Integer(-3);
845	>	public static final Integer m4  = new Integer(-4);
846	>	public static final Integer m5  = new Integer(-5);
847	>	public static final Integer m6  = new Integer(-6);
848	>	public static final Integer m10 = new Integer(-10);
849	>
850	>	/**
851	>	* Runs Runnable r with a security policy that permits precisely
852	>	* the specified permissions.  If there is no current security
853	>	* manager, the runnable is run twice, both with and without a
854	>	* security manager.  We require that any security manager permit
855	>	* getPolicy/setPolicy.
856	>	*/
857	>	public void runWithPermissions(Runnable r, Permission... permissions) {
858	>	SecurityManager sm = System.getSecurityManager();
859	>	if (sm == null) {
860	>	r.run();
861	>	}
862	>	runWithSecurityManagerWithPermissions(r, permissions);
863	>	}
864	>
865	>	/**
866	>	* Runs Runnable r with a security policy that permits precisely
867	>	* the specified permissions.  If there is no current security
868	>	* manager, a temporary one is set for the duration of the
869	>	* Runnable.  We require that any security manager permit
870	>	* getPolicy/setPolicy.
871	>	*/
872	>	public void runWithSecurityManagerWithPermissions(Runnable r,
873	>	Permission... permissions) {
874	>	SecurityManager sm = System.getSecurityManager();
875	>	if (sm == null) {
876	>	Policy savedPolicy = Policy.getPolicy();
877	>	try {
878	>	Policy.setPolicy(permissivePolicy());
879	>	System.setSecurityManager(new SecurityManager());
880	>	runWithSecurityManagerWithPermissions(r, permissions);
881	>	} finally {
882	>	System.setSecurityManager(null);
883	>	Policy.setPolicy(savedPolicy);
884	>	}
885	>	} else {
886	>	Policy savedPolicy = Policy.getPolicy();
887	>	AdjustablePolicy policy = new AdjustablePolicy(permissions);
888	>	Policy.setPolicy(policy);
889	>
890	>	try {
891	>	r.run();
892	>	} finally {
893	>	policy.addPermission(new SecurityPermission("setPolicy"));
894	>	Policy.setPolicy(savedPolicy);
895	>	}
896	>	}
897	>	}
898
899	+	/**
900	+	* Runs a runnable without any permissions.
901	+	*/
902	+	public void runWithoutPermissions(Runnable r) {
903	+	runWithPermissions(r);
904	+	}
905
906		/**
907		* A security policy where new permissions can be dynamically added
908		* or all cleared.
909		*/
910	<	static class AdjustablePolicy extends java.security.Policy {
910	>	public static class AdjustablePolicy extends java.security.Policy {
911		Permissions perms = new Permissions();
912	<	AdjustablePolicy() { }
912	>	AdjustablePolicy(Permission... permissions) {
913	>	for (Permission permission : permissions)
914	>	perms.add(permission);
915	>	}
916		void addPermission(Permission perm) { perms.add(perm); }
917		void clearPermissions() { perms = new Permissions(); }
918	<	public PermissionCollection getPermissions(CodeSource cs) {
919	<	return perms;
920	<	}
921	<	public PermissionCollection getPermissions(ProtectionDomain pd) {
922	<	return perms;
923	<	}
924	<	public boolean implies(ProtectionDomain pd, Permission p) {
925	<	return perms.implies(p);
926	<	}
927	<	public void refresh() {}
918	>	public PermissionCollection getPermissions(CodeSource cs) {
919	>	return perms;
920	>	}
921	>	public PermissionCollection getPermissions(ProtectionDomain pd) {
922	>	return perms;
923	>	}
924	>	public boolean implies(ProtectionDomain pd, Permission p) {
925	>	return perms.implies(p);
926	>	}
927	>	public void refresh() {}
928	>	public String toString() {
929	>	List<Permission> ps = new ArrayList<Permission>();
930	>	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
931	>	ps.add(e.nextElement());
932	>	return "AdjustablePolicy with permissions " + ps;
933	>	}
934		}
935
936	+	/**
937	+	* Returns a policy containing all the permissions we ever need.
938	+	*/
939	+	public static Policy permissivePolicy() {
940	+	return new AdjustablePolicy
941	+	// Permissions j.u.c. needs directly
942	+	(new RuntimePermission("modifyThread"),
943	+	new RuntimePermission("getClassLoader"),
944	+	new RuntimePermission("setContextClassLoader"),
945	+	// Permissions needed to change permissions!
946	+	new SecurityPermission("getPolicy"),
947	+	new SecurityPermission("setPolicy"),
948	+	new RuntimePermission("setSecurityManager"),
949	+	// Permissions needed by the junit test harness
950	+	new RuntimePermission("accessDeclaredMembers"),
951	+	new PropertyPermission("*", "read"),
952	+	new java.io.FilePermission("<<ALL FILES>>", "read"));
953	+	}
954
955	<	// Some convenient Runnable classes
955	>	/**
956	>	* Sleeps until the given time has elapsed.
957	>	* Throws AssertionFailedError if interrupted.
958	>	*/
959	>	void sleep(long millis) {
960	>	try {
961	>	delay(millis);
962	>	} catch (InterruptedException fail) {
963	>	AssertionFailedError afe =
964	>	new AssertionFailedError("Unexpected InterruptedException");
965	>	afe.initCause(fail);
966	>	throw afe;
967	>	}
968	>	}
969
970	<	static class NoOpRunnable implements Runnable {
971	<	public void run() {}
970	>	/**
971	>	* Spin-waits up to the specified number of milliseconds for the given
972	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
973	>	*/
974	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
975	>	long startTime = System.nanoTime();
976	>	for (;;) {
977	>	Thread.State s = thread.getState();
978	>	if (s == Thread.State.BLOCKED ||
979	>	s == Thread.State.WAITING ||
980	>	s == Thread.State.TIMED_WAITING)
981	>	return;
982	>	else if (s == Thread.State.TERMINATED)
983	>	fail("Unexpected thread termination");
984	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
985	>	threadAssertTrue(thread.isAlive());
986	>	return;
987	>	}
988	>	Thread.yield();
989	>	}
990		}
991
992	<	static class NoOpCallable implements Callable {
993	<	public Object call() { return Boolean.TRUE; }
992	>	/**
993	>	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
994	>	* state: BLOCKED, WAITING, or TIMED_WAITING.
995	>	*/
996	>	void waitForThreadToEnterWaitState(Thread thread) {
997	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
998		}
999
1000	<	static final String TEST_STRING = "a test string";
1000	>	/**
1001	>	* Returns the number of milliseconds since time given by
1002	>	* startNanoTime, which must have been previously returned from a
1003	>	* call to {@link System#nanoTime()}.
1004	>	*/
1005	>	static long millisElapsedSince(long startNanoTime) {
1006	>	return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
1007	>	}
1008
1009	<	static class StringTask implements Callable<String> {
1010	<	public String call() { return TEST_STRING; }
1009	>	//     void assertTerminatesPromptly(long timeoutMillis, Runnable r) {
1010	>	//         long startTime = System.nanoTime();
1011	>	//         try {
1012	>	//             r.run();
1013	>	//         } catch (Throwable fail) { threadUnexpectedException(fail); }
1014	>	//         if (millisElapsedSince(startTime) > timeoutMillis/2)
1015	>	//             throw new AssertionFailedError("did not return promptly");
1016	>	//     }
1017	>
1018	>	//     void assertTerminatesPromptly(Runnable r) {
1019	>	//         assertTerminatesPromptly(LONG_DELAY_MS/2, r);
1020	>	//     }
1021	>
1022	>	/**
1023	>	* Checks that timed f.get() returns the expected value, and does not
1024	>	* wait for the timeout to elapse before returning.
1025	>	*/
1026	>	<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
1027	>	long startTime = System.nanoTime();
1028	>	try {
1029	>	assertEquals(expectedValue, f.get(timeoutMillis, MILLISECONDS));
1030	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
1031	>	if (millisElapsedSince(startTime) > timeoutMillis/2)
1032	>	throw new AssertionFailedError("timed get did not return promptly");
1033		}
1034
1035	<	static class NPETask implements Callable<String> {
1036	<	public String call() { throw new NullPointerException(); }
1035	>	<T> void checkTimedGet(Future<T> f, T expectedValue) {
1036	>	checkTimedGet(f, expectedValue, LONG_DELAY_MS);
1037		}
1038
1039	<	static class CallableOne implements Callable<Integer> {
1040	<	public Integer call() { return one; }
1039	>	/**
1040	>	* Returns a new started daemon Thread running the given runnable.
1041	>	*/
1042	>	Thread newStartedThread(Runnable runnable) {
1043	>	Thread t = new Thread(runnable);
1044	>	t.setDaemon(true);
1045	>	t.start();
1046	>	return t;
1047		}
1048
1049	<	class ShortRunnable implements Runnable {
1050	<	public void run() {
1051	<	try {
1052	<	Thread.sleep(SHORT_DELAY_MS);
1053	<	}
1054	<	catch(Exception e) {
1055	<	threadUnexpectedException(e);
1049	>	/**
1050	>	* Waits for the specified time (in milliseconds) for the thread
1051	>	* to terminate (using {@link Thread#join(long)}), else interrupts
1052	>	* the thread (in the hope that it may terminate later) and fails.
1053	>	*/
1054	>	void awaitTermination(Thread t, long timeoutMillis) {
1055	>	try {
1056	>	t.join(timeoutMillis);
1057	>	} catch (InterruptedException fail) {
1058	>	threadUnexpectedException(fail);
1059	>	} finally {
1060	>	if (t.getState() != Thread.State.TERMINATED) {
1061	>	t.interrupt();
1062	>	fail("Test timed out");
1063		}
1064		}
1065		}
1066
1067	<	class ShortInterruptedRunnable implements Runnable {
1068	<	public void run() {
1067	>	/**
1068	>	* Waits for LONG_DELAY_MS milliseconds for the thread to
1069	>	* terminate (using {@link Thread#join(long)}), else interrupts
1070	>	* the thread (in the hope that it may terminate later) and fails.
1071	>	*/
1072	>	void awaitTermination(Thread t) {
1073	>	awaitTermination(t, LONG_DELAY_MS);
1074	>	}
1075	>
1076	>	// Some convenient Runnable classes
1077	>
1078	>	public abstract class CheckedRunnable implements Runnable {
1079	>	protected abstract void realRun() throws Throwable;
1080	>
1081	>	public final void run() {
1082		try {
1083	<	Thread.sleep(SHORT_DELAY_MS);
1084	<	threadShouldThrow();
1085	<	}
429	<	catch(InterruptedException success) {
1083	>	realRun();
1084	>	} catch (Throwable fail) {
1085	>	threadUnexpectedException(fail);
1086		}
1087		}
1088		}
1089
1090	<	class SmallRunnable implements Runnable {
1091	<	public void run() {
1090	>	public abstract class RunnableShouldThrow implements Runnable {
1091	>	protected abstract void realRun() throws Throwable;
1092	>
1093	>	final Class<?> exceptionClass;
1094	>
1095	>	<T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) {
1096	>	this.exceptionClass = exceptionClass;
1097	>	}
1098	>
1099	>	public final void run() {
1100		try {
1101	<	Thread.sleep(SMALL_DELAY_MS);
1102	<	}
1103	<	catch(Exception e) {
1104	<	threadUnexpectedException(e);
1101	>	realRun();
1102	>	threadShouldThrow(exceptionClass.getSimpleName());
1103	>	} catch (Throwable t) {
1104	>	if (! exceptionClass.isInstance(t))
1105	>	threadUnexpectedException(t);
1106		}
1107		}
1108		}
1109
1110	<	class SmallPossiblyInterruptedRunnable implements Runnable {
1111	<	public void run() {
1110	>	public abstract class ThreadShouldThrow extends Thread {
1111	>	protected abstract void realRun() throws Throwable;
1112	>
1113	>	final Class<?> exceptionClass;
1114	>
1115	>	<T extends Throwable> ThreadShouldThrow(Class<T> exceptionClass) {
1116	>	this.exceptionClass = exceptionClass;
1117	>	}
1118	>
1119	>	public final void run() {
1120		try {
1121	<	Thread.sleep(SMALL_DELAY_MS);
1122	<	}
1123	<	catch(Exception e) {
1121	>	realRun();
1122	>	threadShouldThrow(exceptionClass.getSimpleName());
1123	>	} catch (Throwable t) {
1124	>	if (! exceptionClass.isInstance(t))
1125	>	threadUnexpectedException(t);
1126		}
1127		}
1128		}
1129
1130	<	class SmallCallable implements Callable {
1131	<	public Object call() {
1130	>	public abstract class CheckedInterruptedRunnable implements Runnable {
1131	>	protected abstract void realRun() throws Throwable;
1132	>
1133	>	public final void run() {
1134		try {
1135	<	Thread.sleep(SMALL_DELAY_MS);
1136	<	}
1137	<	catch(Exception e) {
1138	<	threadUnexpectedException(e);
1135	>	realRun();
1136	>	threadShouldThrow("InterruptedException");
1137	>	} catch (InterruptedException success) {
1138	>	threadAssertFalse(Thread.interrupted());
1139	>	} catch (Throwable fail) {
1140	>	threadUnexpectedException(fail);
1141		}
463	–	return Boolean.TRUE;
1142		}
1143		}
1144
1145	<	class SmallInterruptedRunnable implements Runnable {
1146	<	public void run() {
1145	>	public abstract class CheckedCallable<T> implements Callable<T> {
1146	>	protected abstract T realCall() throws Throwable;
1147	>
1148	>	public final T call() {
1149		try {
1150	<	Thread.sleep(SMALL_DELAY_MS);
1151	<	threadShouldThrow();
1152	<	}
1153	<	catch(InterruptedException success) {
1150	>	return realCall();
1151	>	} catch (Throwable fail) {
1152	>	threadUnexpectedException(fail);
1153	>	return null;
1154		}
1155		}
1156		}
1157
1158	+	public abstract class CheckedInterruptedCallable<T>
1159	+	implements Callable<T> {
1160	+	protected abstract T realCall() throws Throwable;
1161
1162	<	class MediumRunnable implements Runnable {
480	<	public void run() {
1162	>	public final T call() {
1163		try {
1164	<	Thread.sleep(MEDIUM_DELAY_MS);
1165	<	}
1166	<	catch(Exception e) {
1167	<	threadUnexpectedException(e);
1164	>	T result = realCall();
1165	>	threadShouldThrow("InterruptedException");
1166	>	return result;
1167	>	} catch (InterruptedException success) {
1168	>	threadAssertFalse(Thread.interrupted());
1169	>	} catch (Throwable fail) {
1170	>	threadUnexpectedException(fail);
1171		}
1172	+	return null;
1173		}
1174		}
1175
1176	<	class MediumInterruptedRunnable implements Runnable {
1177	<	public void run() {
1176	>	public static class NoOpRunnable implements Runnable {
1177	>	public void run() {}
1178	>	}
1179	>
1180	>	public static class NoOpCallable implements Callable {
1181	>	public Object call() { return Boolean.TRUE; }
1182	>	}
1183	>
1184	>	public static final String TEST_STRING = "a test string";
1185	>
1186	>	public static class StringTask implements Callable<String> {
1187	>	public String call() { return TEST_STRING; }
1188	>	}
1189	>
1190	>	public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
1191	>	return new CheckedCallable<String>() {
1192	>	protected String realCall() {
1193	>	try {
1194	>	latch.await();
1195	>	} catch (InterruptedException quittingTime) {}
1196	>	return TEST_STRING;
1197	>	}};
1198	>	}
1199	>
1200	>	public Runnable awaiter(final CountDownLatch latch) {
1201	>	return new CheckedRunnable() {
1202	>	public void realRun() throws InterruptedException {
1203	>	await(latch);
1204	>	}};
1205	>	}
1206	>
1207	>	public void await(CountDownLatch latch) {
1208	>	try {
1209	>	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1210	>	} catch (Throwable fail) {
1211	>	threadUnexpectedException(fail);
1212	>	}
1213	>	}
1214	>
1215	>	public void await(Semaphore semaphore) {
1216	>	try {
1217	>	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1218	>	} catch (Throwable fail) {
1219	>	threadUnexpectedException(fail);
1220	>	}
1221	>	}
1222	>
1223	>	//     /**
1224	>	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1225	>	//      */
1226	>	//     public void await(AtomicBoolean flag) {
1227	>	//         await(flag, LONG_DELAY_MS);
1228	>	//     }
1229	>
1230	>	//     /**
1231	>	//      * Spin-waits up to the specified timeout until flag becomes true.
1232	>	//      */
1233	>	//     public void await(AtomicBoolean flag, long timeoutMillis) {
1234	>	//         long startTime = System.nanoTime();
1235	>	//         while (!flag.get()) {
1236	>	//             if (millisElapsedSince(startTime) > timeoutMillis)
1237	>	//                 throw new AssertionFailedError("timed out");
1238	>	//             Thread.yield();
1239	>	//         }
1240	>	//     }
1241	>
1242	>	public static class NPETask implements Callable<String> {
1243	>	public String call() { throw new NullPointerException(); }
1244	>	}
1245	>
1246	>	public static class CallableOne implements Callable<Integer> {
1247	>	public Integer call() { return one; }
1248	>	}
1249	>
1250	>	public class ShortRunnable extends CheckedRunnable {
1251	>	protected void realRun() throws Throwable {
1252	>	delay(SHORT_DELAY_MS);
1253	>	}
1254	>	}
1255	>
1256	>	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1257	>	protected void realRun() throws InterruptedException {
1258	>	delay(SHORT_DELAY_MS);
1259	>	}
1260	>	}
1261	>
1262	>	public class SmallRunnable extends CheckedRunnable {
1263	>	protected void realRun() throws Throwable {
1264	>	delay(SMALL_DELAY_MS);
1265	>	}
1266	>	}
1267	>
1268	>	public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1269	>	protected void realRun() {
1270		try {
1271	<	Thread.sleep(MEDIUM_DELAY_MS);
1272	<	threadShouldThrow();
495	<	}
496	<	catch(InterruptedException success) {
497	<	}
1271	>	delay(SMALL_DELAY_MS);
1272	>	} catch (InterruptedException ok) {}
1273		}
1274		}
1275
1276	<	class MediumPossiblyInterruptedRunnable implements Runnable {
1277	<	public void run() {
1276	>	public class SmallCallable extends CheckedCallable {
1277	>	protected Object realCall() throws InterruptedException {
1278	>	delay(SMALL_DELAY_MS);
1279	>	return Boolean.TRUE;
1280	>	}
1281	>	}
1282	>
1283	>	public class MediumRunnable extends CheckedRunnable {
1284	>	protected void realRun() throws Throwable {
1285	>	delay(MEDIUM_DELAY_MS);
1286	>	}
1287	>	}
1288	>
1289	>	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1290	>	protected void realRun() throws InterruptedException {
1291	>	delay(MEDIUM_DELAY_MS);
1292	>	}
1293	>	}
1294	>
1295	>	public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1296	>	return new CheckedRunnable() {
1297	>	protected void realRun() {
1298	>	try {
1299	>	delay(timeoutMillis);
1300	>	} catch (InterruptedException ok) {}
1301	>	}};
1302	>	}
1303	>
1304	>	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1305	>	protected void realRun() {
1306		try {
1307	<	Thread.sleep(MEDIUM_DELAY_MS);
1308	<	}
506	<	catch(InterruptedException success) {
507	<	}
1307	>	delay(MEDIUM_DELAY_MS);
1308	>	} catch (InterruptedException ok) {}
1309		}
1310		}
1311
1312	<	class LongPossiblyInterruptedRunnable implements Runnable {
1313	<	public void run() {
1312	>	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1313	>	protected void realRun() {
1314		try {
1315	<	Thread.sleep(LONG_DELAY_MS);
1316	<	}
516	<	catch(InterruptedException success) {
517	<	}
1315	>	delay(LONG_DELAY_MS);
1316	>	} catch (InterruptedException ok) {}
1317		}
1318		}
1319
1320		/**
1321		* For use as ThreadFactory in constructors
1322		*/
1323	<	static class SimpleThreadFactory implements ThreadFactory{
1324	<	public Thread newThread(Runnable r){
1323	>	public static class SimpleThreadFactory implements ThreadFactory {
1324	>	public Thread newThread(Runnable r) {
1325		return new Thread(r);
1326		}
1327		}
1328
1329	<	static class TrackedShortRunnable implements Runnable {
1330	<	volatile boolean done = false;
1329	>	public interface TrackedRunnable extends Runnable {
1330	>	boolean isDone();
1331	>	}
1332	>
1333	>	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1334	>	return new TrackedRunnable() {
1335	>	private volatile boolean done = false;
1336	>	public boolean isDone() { return done; }
1337	>	public void run() {
1338	>	try {
1339	>	delay(timeoutMillis);
1340	>	done = true;
1341	>	} catch (InterruptedException ok) {}
1342	>	}
1343	>	};
1344	>	}
1345	>
1346	>	public static class TrackedShortRunnable implements Runnable {
1347	>	public volatile boolean done = false;
1348		public void run() {
1349		try {
1350	<	Thread.sleep(SMALL_DELAY_MS);
1350	>	delay(SHORT_DELAY_MS);
1351		done = true;
1352	<	} catch(Exception e){
537	<	}
1352	>	} catch (InterruptedException ok) {}
1353		}
1354		}
1355
1356	<	static class TrackedMediumRunnable implements Runnable {
1357	<	volatile boolean done = false;
1356	>	public static class TrackedSmallRunnable implements Runnable {
1357	>	public volatile boolean done = false;
1358		public void run() {
1359		try {
1360	<	Thread.sleep(MEDIUM_DELAY_MS);
1360	>	delay(SMALL_DELAY_MS);
1361		done = true;
1362	<	} catch(Exception e){
548	<	}
1362	>	} catch (InterruptedException ok) {}
1363		}
1364		}
1365
1366	<	static class TrackedLongRunnable implements Runnable {
1367	<	volatile boolean done = false;
1366	>	public static class TrackedMediumRunnable implements Runnable {
1367	>	public volatile boolean done = false;
1368		public void run() {
1369		try {
1370	<	Thread.sleep(LONG_DELAY_MS);
1370	>	delay(MEDIUM_DELAY_MS);
1371		done = true;
1372	<	} catch(Exception e){
559	<	}
1372	>	} catch (InterruptedException ok) {}
1373		}
1374		}
1375
1376	<	static class TrackedNoOpRunnable implements Runnable {
1377	<	volatile boolean done = false;
1376	>	public static class TrackedLongRunnable implements Runnable {
1377	>	public volatile boolean done = false;
1378	>	public void run() {
1379	>	try {
1380	>	delay(LONG_DELAY_MS);
1381	>	done = true;
1382	>	} catch (InterruptedException ok) {}
1383	>	}
1384	>	}
1385	>
1386	>	public static class TrackedNoOpRunnable implements Runnable {
1387	>	public volatile boolean done = false;
1388		public void run() {
1389		done = true;
1390		}
1391		}
1392
1393	<	static class TrackedCallable implements Callable {
1394	<	volatile boolean done = false;
1393	>	public static class TrackedCallable implements Callable {
1394	>	public volatile boolean done = false;
1395		public Object call() {
1396		try {
1397	<	Thread.sleep(SMALL_DELAY_MS);
1397	>	delay(SMALL_DELAY_MS);
1398		done = true;
1399	<	} catch(Exception e){
577	<	}
1399	>	} catch (InterruptedException ok) {}
1400		return Boolean.TRUE;
1401		}
1402		}
1403
1404	+	/**
1405	+	* Analog of CheckedRunnable for RecursiveAction
1406	+	*/
1407	+	public abstract class CheckedRecursiveAction extends RecursiveAction {
1408	+	protected abstract void realCompute() throws Throwable;
1409	+
1410	+	@Override protected final void compute() {
1411	+	try {
1412	+	realCompute();
1413	+	} catch (Throwable fail) {
1414	+	threadUnexpectedException(fail);
1415	+	}
1416	+	}
1417	+	}
1418	+
1419	+	/**
1420	+	* Analog of CheckedCallable for RecursiveTask
1421	+	*/
1422	+	public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1423	+	protected abstract T realCompute() throws Throwable;
1424	+
1425	+	@Override protected final T compute() {
1426	+	try {
1427	+	return realCompute();
1428	+	} catch (Throwable fail) {
1429	+	threadUnexpectedException(fail);
1430	+	return null;
1431	+	}
1432	+	}
1433	+	}
1434
1435		/**
1436		* For use as RejectedExecutionHandler in constructors
1437		*/
1438	<	static class NoOpREHandler implements RejectedExecutionHandler{
1439	<	public void rejectedExecution(Runnable r, ThreadPoolExecutor executor){}
1438	>	public static class NoOpREHandler implements RejectedExecutionHandler {
1439	>	public void rejectedExecution(Runnable r,
1440	>	ThreadPoolExecutor executor) {}
1441	>	}
1442	>
1443	>	/**
1444	>	* A CyclicBarrier that uses timed await and fails with
1445	>	* AssertionFailedErrors instead of throwing checked exceptions.
1446	>	*/
1447	>	public class CheckedBarrier extends CyclicBarrier {
1448	>	public CheckedBarrier(int parties) { super(parties); }
1449	>
1450	>	public int await() {
1451	>	try {
1452	>	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1453	>	} catch (TimeoutException timedOut) {
1454	>	throw new AssertionFailedError("timed out");
1455	>	} catch (Exception fail) {
1456	>	AssertionFailedError afe =
1457	>	new AssertionFailedError("Unexpected exception: " + fail);
1458	>	afe.initCause(fail);
1459	>	throw afe;
1460	>	}
1461	>	}
1462	>	}
1463	>
1464	>	void checkEmpty(BlockingQueue q) {
1465	>	try {
1466	>	assertTrue(q.isEmpty());
1467	>	assertEquals(0, q.size());
1468	>	assertNull(q.peek());
1469	>	assertNull(q.poll());
1470	>	assertNull(q.poll(0, MILLISECONDS));
1471	>	assertEquals(q.toString(), "[]");
1472	>	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1473	>	assertFalse(q.iterator().hasNext());
1474	>	try {
1475	>	q.element();
1476	>	shouldThrow();
1477	>	} catch (NoSuchElementException success) {}
1478	>	try {
1479	>	q.iterator().next();
1480	>	shouldThrow();
1481	>	} catch (NoSuchElementException success) {}
1482	>	try {
1483	>	q.remove();
1484	>	shouldThrow();
1485	>	} catch (NoSuchElementException success) {}
1486	>	} catch (InterruptedException fail) { threadUnexpectedException(fail); }
1487	>	}
1488	>
1489	>	void assertSerialEquals(Object x, Object y) {
1490	>	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1491		}
1492
1493	+	void assertNotSerialEquals(Object x, Object y) {
1494	+	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1495	+	}
1496	+
1497	+	byte[] serialBytes(Object o) {
1498	+	try {
1499	+	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1500	+	ObjectOutputStream oos = new ObjectOutputStream(bos);
1501	+	oos.writeObject(o);
1502	+	oos.flush();
1503	+	oos.close();
1504	+	return bos.toByteArray();
1505	+	} catch (Throwable fail) {
1506	+	threadUnexpectedException(fail);
1507	+	return new byte[0];
1508	+	}
1509	+	}
1510
1511	+	@SuppressWarnings("unchecked")
1512	+	<T> T serialClone(T o) {
1513	+	try {
1514	+	ObjectInputStream ois = new ObjectInputStream
1515	+	(new ByteArrayInputStream(serialBytes(o)));
1516	+	T clone = (T) ois.readObject();
1517	+	assertSame(o.getClass(), clone.getClass());
1518	+	return clone;
1519	+	} catch (Throwable fail) {
1520	+	threadUnexpectedException(fail);
1521	+	return null;
1522	+	}
1523	+	}
1524	+
1525	+	public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1526	+	Runnable... throwingActions) {
1527	+	for (Runnable throwingAction : throwingActions) {
1528	+	boolean threw = false;
1529	+	try { throwingAction.run(); }
1530	+	catch (Throwable t) {
1531	+	threw = true;
1532	+	if (!expectedExceptionClass.isInstance(t)) {
1533	+	AssertionFailedError afe =
1534	+	new AssertionFailedError
1535	+	("Expected " + expectedExceptionClass.getName() +
1536	+	", got " + t.getClass().getName());
1537	+	afe.initCause(t);
1538	+	threadUnexpectedException(afe);
1539	+	}
1540	+	}
1541	+	if (!threw)
1542	+	shouldThrow(expectedExceptionClass.getName());
1543	+	}
1544	+	}
1545	+
1546	+	public void assertIteratorExhausted(Iterator<?> it) {
1547	+	try {
1548	+	it.next();
1549	+	shouldThrow();
1550	+	} catch (NoSuchElementException success) {}
1551	+	assertFalse(it.hasNext());
1552	+	}
1553		}

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