ViewVC Help

View File | Revision Log | Show Annotations | Download File | Root Listing

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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.28 by dl, Fri May 20 16:30:17 2005 UTC vs.
Revision 1.146 by jsr166, Fri Sep 25 23:32:15 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.ExecutionException;
41	>	import java.util.concurrent.Executors;
42	>	import java.util.concurrent.ExecutorService;
43	>	import java.util.concurrent.ForkJoinPool;
44	>	import java.util.concurrent.Future;
45	>	import java.util.concurrent.RecursiveAction;
46	>	import java.util.concurrent.RecursiveTask;
47	>	import java.util.concurrent.RejectedExecutionHandler;
48	>	import java.util.concurrent.Semaphore;
49	>	import java.util.concurrent.ThreadFactory;
50	>	import java.util.concurrent.ThreadPoolExecutor;
51	>	import java.util.concurrent.TimeoutException;
52	>	import java.util.concurrent.atomic.AtomicReference;
53	>	import java.util.regex.Pattern;
54	>
55	>	import junit.framework.AssertionFailedError;
56	>	import junit.framework.Test;
57	>	import junit.framework.TestCase;
58	>	import junit.framework.TestResult;
59	>	import junit.framework.TestSuite;
60
61		/**
62		* Base class for JSR166 Junit TCK tests.  Defines some constants,
#	Line 22 | Line 68 | import java.security.*;
68		*
69		* <ol>
70		*
71	<	* <li> All assertions in code running in generated threads must use
71	>	* <li>All assertions in code running in generated threads must use
72		* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link
73		* #threadAssertEquals}, or {@link #threadAssertNull}, (not
74	<	* <tt>fail</tt>, <tt>assertTrue</tt>, etc.) It is OK (but not
74	>	* {@code fail}, {@code assertTrue}, etc.) It is OK (but not
75		* particularly recommended) for other code to use these forms too.
76		* Only the most typically used JUnit assertion methods are defined
77	<	* this way, but enough to live with.</li>
77	>	* this way, but enough to live with.
78		*
79	<	* <li> If you override {@link #setUp} or {@link #tearDown}, make sure
80	<	* to invoke <tt>super.setUp</tt> and <tt>super.tearDown</tt> within
79	>	* <li>If you override {@link #setUp} or {@link #tearDown}, make sure
80	>	* to invoke {@code super.setUp} and {@code super.tearDown} within
81		* them. These methods are used to clear and check for thread
82	<	* assertion failures.</li>
82	>	* assertion failures.
83		*
84	<	* <li>All delays and timeouts must use one of the constants <tt>
85	<	* SHORT_DELAY_MS</tt>, <tt> SMALL_DELAY_MS</tt>, <tt> MEDIUM_DELAY_MS</tt>,
86	<	* <tt> LONG_DELAY_MS</tt>. The idea here is that a SHORT is always
84	>	* <li>All delays and timeouts must use one of the constants {@code
85	>	* SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS},
86	>	* {@code LONG_DELAY_MS}. The idea here is that a SHORT is always
87		* discriminable from zero time, and always allows enough time for the
88		* small amounts of computation (creating a thread, calling a few
89		* methods, etc) needed to reach a timeout point. Similarly, a SMALL
90		* is always discriminable as larger than SHORT and smaller than
91		* MEDIUM.  And so on. These constants are set to conservative values,
92		* but even so, if there is ever any doubt, they can all be increased
93	<	* in one spot to rerun tests on slower platforms.</li>
93	>	* in one spot to rerun tests on slower platforms.
94		*
95	<	* <li> All threads generated must be joined inside each test case
96	<	* method (or <tt>fail</tt> to do so) before returning from the
97	<	* method. The <tt> joinPool</tt> method can be used to do this when
98	<	* using Executors.</li>
95	>	* <li>All threads generated must be joined inside each test case
96	>	* method (or {@code fail} to do so) before returning from the
97	>	* method. The {@code joinPool} method can be used to do this when
98	>	* using Executors.
99		*
100		* </ol>
101		*
102	<	* <p> <b>Other notes</b>
102	>	* <p><b>Other notes</b>
103		* <ul>
104		*
105	<	* <li> Usually, there is one testcase method per JSR166 method
105	>	* <li>Usually, there is one testcase method per JSR166 method
106		* covering "normal" operation, and then as many exception-testing
107		* methods as there are exceptions the method can throw. Sometimes
108		* there are multiple tests per JSR166 method when the different
109		* "normal" behaviors differ significantly. And sometimes testcases
110		* cover multiple methods when they cannot be tested in
111	<	* isolation.</li>
111	>	* isolation.
112		*
113	<	* <li> The documentation style for testcases is to provide as javadoc
113	>	* <li>The documentation style for testcases is to provide as javadoc
114		* a simple sentence or two describing the property that the testcase
115		* method purports to test. The javadocs do not say anything about how
116	<	* the property is tested. To find out, read the code.</li>
116	>	* the property is tested. To find out, read the code.
117		*
118	<	* <li> These tests are "conformance tests", and do not attempt to
118	>	* <li>These tests are "conformance tests", and do not attempt to
119		* test throughput, latency, scalability or other performance factors
120		* (see the separate "jtreg" tests for a set intended to check these
121		* for the most central aspects of functionality.) So, most tests use
122		* the smallest sensible numbers of threads, collection sizes, etc
123	<	* needed to check basic conformance.</li>
123	>	* needed to check basic conformance.
124		*
125		* <li>The test classes currently do not declare inclusion in
126		* any particular package to simplify things for people integrating
127	<	* them in TCK test suites.</li>
127	>	* them in TCK test suites.
128		*
129	<	* <li> As a convenience, the <tt>main</tt> of this class (JSR166TestCase)
130	<	* runs all JSR166 unit tests.</li>
129	>	* <li>As a convenience, the {@code main} of this class (JSR166TestCase)
130	>	* runs all JSR166 unit tests.
131		*
132		* </ul>
133		*/
134		public class JSR166TestCase extends TestCase {
135	+	private static final boolean useSecurityManager =
136	+	Boolean.getBoolean("jsr166.useSecurityManager");
137	+
138	+	protected static final boolean expensiveTests =
139	+	Boolean.getBoolean("jsr166.expensiveTests");
140	+
141	+	/**
142	+	* If true, also run tests that are not part of the official tck
143	+	* because they test unspecified implementation details.
144	+	*/
145	+	protected static final boolean testImplementationDetails =
146	+	Boolean.getBoolean("jsr166.testImplementationDetails");
147	+
148	+	/**
149	+	* If true, report on stdout all "slow" tests, that is, ones that
150	+	* take more than profileThreshold milliseconds to execute.
151	+	*/
152	+	private static final boolean profileTests =
153	+	Boolean.getBoolean("jsr166.profileTests");
154	+
155	+	/**
156	+	* The number of milliseconds that tests are permitted for
157	+	* execution without being reported, when profileTests is set.
158	+	*/
159	+	private static final long profileThreshold =
160	+	Long.getLong("jsr166.profileThreshold", 100);
161	+
162	+	/**
163	+	* The number of repetitions per test (for tickling rare bugs).
164	+	*/
165	+	private static final int runsPerTest =
166	+	Integer.getInteger("jsr166.runsPerTest", 1);
167	+
168	+	/**
169	+	* The number of repetitions of the test suite (for finding leaks?).
170	+	*/
171	+	private static final int suiteRuns =
172	+	Integer.getInteger("jsr166.suiteRuns", 1);
173	+
174	+	public JSR166TestCase() { super(); }
175	+	public JSR166TestCase(String name) { super(name); }
176	+
177	+	/**
178	+	* A filter for tests to run, matching strings of the form
179	+	* methodName(className), e.g. "testInvokeAll5(ForkJoinPoolTest)"
180	+	* Usefully combined with jsr166.runsPerTest.
181	+	*/
182	+	private static final Pattern methodFilter = methodFilter();
183	+
184	+	private static Pattern methodFilter() {
185	+	String regex = System.getProperty("jsr166.methodFilter");
186	+	return (regex == null) ? null : Pattern.compile(regex);
187	+	}
188	+
189	+	protected void runTest() throws Throwable {
190	+	if (methodFilter == null
191	+	|| methodFilter.matcher(toString()).find()) {
192	+	for (int i = 0; i < runsPerTest; i++) {
193	+	if (profileTests)
194	+	runTestProfiled();
195	+	else
196	+	super.runTest();
197	+	}
198	+	}
199	+	}
200	+
201	+	protected void runTestProfiled() throws Throwable {
202	+	for (int i = 0; i < 2; i++) {
203	+	long startTime = System.nanoTime();
204	+	super.runTest();
205	+	long elapsedMillis = millisElapsedSince(startTime);
206	+	if (elapsedMillis < profileThreshold)
207	+	break;
208	+	// Never report first run of any test; treat it as a
209	+	// warmup run, notably to trigger all needed classloading,
210	+	if (i > 0)
211	+	System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
212	+	}
213	+	}
214	+
215	+	/**
216	+	* Runs all JSR166 unit tests using junit.textui.TestRunner.
217	+	*/
218	+	public static void main(String[] args) {
219	+	main(suite(), args);
220	+	}
221	+
222		/**
223	<	* Runs all JSR166 unit tests using junit.textui.TestRunner
223	>	* Runs all unit tests in the given test suite.
224	>	* Actual behavior influenced by jsr166.* system properties.
225		*/
226	<	public static void main (String[] args) {
227	<	int iters = 1;
228	<	if (args.length > 0)
229	<	iters = Integer.parseInt(args[0]);
230	<	Test s = suite();
231	<	for (int i = 0; i < iters; ++i) {
232	<	junit.textui.TestRunner.run (s);
226	>	static void main(Test suite, String[] args) {
227	>	if (useSecurityManager) {
228	>	System.err.println("Setting a permissive security manager");
229	>	Policy.setPolicy(permissivePolicy());
230	>	System.setSecurityManager(new SecurityManager());
231	>	}
232	>	for (int i = 0; i < suiteRuns; i++) {
233	>	TestResult result = junit.textui.TestRunner.run(suite);
234	>	if (!result.wasSuccessful())
235	>	System.exit(1);
236		System.gc();
237		System.runFinalization();
238		}
239	<	System.exit(0);
239	>	}
240	>
241	>	public static TestSuite newTestSuite(Object... suiteOrClasses) {
242	>	TestSuite suite = new TestSuite();
243	>	for (Object suiteOrClass : suiteOrClasses) {
244	>	if (suiteOrClass instanceof TestSuite)
245	>	suite.addTest((TestSuite) suiteOrClass);
246	>	else if (suiteOrClass instanceof Class)
247	>	suite.addTest(new TestSuite((Class<?>) suiteOrClass));
248	>	else
249	>	throw new ClassCastException("not a test suite or class");
250	>	}
251	>	return suite;
252	>	}
253	>
254	>	public static void addNamedTestClasses(TestSuite suite,
255	>	String... testClassNames) {
256	>	for (String testClassName : testClassNames) {
257	>	try {
258	>	Class<?> testClass = Class.forName(testClassName);
259	>	Method m = testClass.getDeclaredMethod("suite",
260	>	new Class<?>[0]);
261	>	suite.addTest(newTestSuite((Test)m.invoke(null)));
262	>	} catch (Exception e) {
263	>	throw new Error("Missing test class", e);
264	>	}
265	>	}
266	>	}
267	>
268	>	public static final double JAVA_CLASS_VERSION;
269	>	public static final String JAVA_SPECIFICATION_VERSION;
270	>	static {
271	>	try {
272	>	JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
273	>	new java.security.PrivilegedAction<Double>() {
274	>	public Double run() {
275	>	return Double.valueOf(System.getProperty("java.class.version"));}});
276	>	JAVA_SPECIFICATION_VERSION = java.security.AccessController.doPrivileged(
277	>	new java.security.PrivilegedAction<String>() {
278	>	public String run() {
279	>	return System.getProperty("java.specification.version");}});
280	>	} catch (Throwable t) {
281	>	throw new Error(t);
282	>	}
283	>	}
284	>
285	>	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
286	>	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
287	>	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
288	>	public static boolean atLeastJava9() {
289	>	return JAVA_CLASS_VERSION >= 53.0
290	>	// As of 2015-09, java9 still uses 52.0 class file version
291	>	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?(9|[0-9][0-9])$");
292	>	}
293	>	public static boolean atLeastJava10() {
294	>	return JAVA_CLASS_VERSION >= 54.0
295	>	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?[0-9][0-9]$");
296	>	}
297	>
298	>	/**
299	>	* Collects all JSR166 unit tests as one suite.
300	>	*/
301	>	public static Test suite() {
302	>	// Java7+ test classes
303	>	TestSuite suite = newTestSuite(
304	>	ForkJoinPoolTest.suite(),
305	>	ForkJoinTaskTest.suite(),
306	>	RecursiveActionTest.suite(),
307	>	RecursiveTaskTest.suite(),
308	>	LinkedTransferQueueTest.suite(),
309	>	PhaserTest.suite(),
310	>	ThreadLocalRandomTest.suite(),
311	>	AbstractExecutorServiceTest.suite(),
312	>	AbstractQueueTest.suite(),
313	>	AbstractQueuedSynchronizerTest.suite(),
314	>	AbstractQueuedLongSynchronizerTest.suite(),
315	>	ArrayBlockingQueueTest.suite(),
316	>	ArrayDequeTest.suite(),
317	>	AtomicBooleanTest.suite(),
318	>	AtomicIntegerArrayTest.suite(),
319	>	AtomicIntegerFieldUpdaterTest.suite(),
320	>	AtomicIntegerTest.suite(),
321	>	AtomicLongArrayTest.suite(),
322	>	AtomicLongFieldUpdaterTest.suite(),
323	>	AtomicLongTest.suite(),
324	>	AtomicMarkableReferenceTest.suite(),
325	>	AtomicReferenceArrayTest.suite(),
326	>	AtomicReferenceFieldUpdaterTest.suite(),
327	>	AtomicReferenceTest.suite(),
328	>	AtomicStampedReferenceTest.suite(),
329	>	ConcurrentHashMapTest.suite(),
330	>	ConcurrentLinkedDequeTest.suite(),
331	>	ConcurrentLinkedQueueTest.suite(),
332	>	ConcurrentSkipListMapTest.suite(),
333	>	ConcurrentSkipListSubMapTest.suite(),
334	>	ConcurrentSkipListSetTest.suite(),
335	>	ConcurrentSkipListSubSetTest.suite(),
336	>	CopyOnWriteArrayListTest.suite(),
337	>	CopyOnWriteArraySetTest.suite(),
338	>	CountDownLatchTest.suite(),
339	>	CyclicBarrierTest.suite(),
340	>	DelayQueueTest.suite(),
341	>	EntryTest.suite(),
342	>	ExchangerTest.suite(),
343	>	ExecutorsTest.suite(),
344	>	ExecutorCompletionServiceTest.suite(),
345	>	FutureTaskTest.suite(),
346	>	LinkedBlockingDequeTest.suite(),
347	>	LinkedBlockingQueueTest.suite(),
348	>	LinkedListTest.suite(),
349	>	LockSupportTest.suite(),
350	>	PriorityBlockingQueueTest.suite(),
351	>	PriorityQueueTest.suite(),
352	>	ReentrantLockTest.suite(),
353	>	ReentrantReadWriteLockTest.suite(),
354	>	ScheduledExecutorTest.suite(),
355	>	ScheduledExecutorSubclassTest.suite(),
356	>	SemaphoreTest.suite(),
357	>	SynchronousQueueTest.suite(),
358	>	SystemTest.suite(),
359	>	ThreadLocalTest.suite(),
360	>	ThreadPoolExecutorTest.suite(),
361	>	ThreadPoolExecutorSubclassTest.suite(),
362	>	ThreadTest.suite(),
363	>	TimeUnitTest.suite(),
364	>	TreeMapTest.suite(),
365	>	TreeSetTest.suite(),
366	>	TreeSubMapTest.suite(),
367	>	TreeSubSetTest.suite());
368	>
369	>	// Java8+ test classes
370	>	if (atLeastJava8()) {
371	>	String[] java8TestClassNames = {
372	>	"Atomic8Test",
373	>	"CompletableFutureTest",
374	>	"ConcurrentHashMap8Test",
375	>	"CountedCompleterTest",
376	>	"DoubleAccumulatorTest",
377	>	"DoubleAdderTest",
378	>	"ForkJoinPool8Test",
379	>	"ForkJoinTask8Test",
380	>	"LongAccumulatorTest",
381	>	"LongAdderTest",
382	>	"SplittableRandomTest",
383	>	"StampedLockTest",
384	>	"SubmissionPublisherTest",
385	>	"ThreadLocalRandom8Test",
386	>	};
387	>	addNamedTestClasses(suite, java8TestClassNames);
388	>	}
389	>
390	>	// Java9+ test classes
391	>	if (atLeastJava9()) {
392	>	String[] java9TestClassNames = {
393	>	// Currently empty, but expecting varhandle tests
394	>	};
395	>	addNamedTestClasses(suite, java9TestClassNames);
396	>	}
397	>
398	>	return suite;
399	>	}
400	>
401	>	/** Returns list of junit-style test method names in given class. */
402	>	public static ArrayList<String> testMethodNames(Class<?> testClass) {
403	>	Method[] methods = testClass.getDeclaredMethods();
404	>	ArrayList<String> names = new ArrayList<String>(methods.length);
405	>	for (Method method : methods) {
406	>	if (method.getName().startsWith("test")
407	>	&& Modifier.isPublic(method.getModifiers())
408	>	// method.getParameterCount() requires jdk8+
409	>	&& method.getParameterTypes().length == 0) {
410	>	names.add(method.getName());
411	>	}
412	>	}
413	>	return names;
414		}
415
416		/**
417	<	* Collects all JSR166 unit tests as one suite
417	>	* Returns junit-style testSuite for the given test class, but
418	>	* parameterized by passing extra data to each test.
419		*/
420	<	public static Test suite ( ) {
421	<	TestSuite suite = new TestSuite("JSR166 Unit Tests");
420	>	public static <ExtraData> Test parameterizedTestSuite
421	>	(Class<? extends JSR166TestCase> testClass,
422	>	Class<ExtraData> dataClass,
423	>	ExtraData data) {
424	>	try {
425	>	TestSuite suite = new TestSuite();
426	>	Constructor c =
427	>	testClass.getDeclaredConstructor(dataClass, String.class);
428	>	for (String methodName : testMethodNames(testClass))
429	>	suite.addTest((Test) c.newInstance(data, methodName));
430	>	return suite;
431	>	} catch (Exception e) {
432	>	throw new Error(e);
433	>	}
434	>	}
435
436	<	suite.addTest(new TestSuite(AbstractExecutorServiceTest.class));
437	<	suite.addTest(new TestSuite(AbstractQueueTest.class));
438	<	suite.addTest(new TestSuite(AbstractQueuedSynchronizerTest.class));
439	<	suite.addTest(new TestSuite(AbstractQueuedLongSynchronizerTest.class));
440	<	suite.addTest(new TestSuite(ArrayBlockingQueueTest.class));
441	<	suite.addTest(new TestSuite(ArrayDequeTest.class));
442	<	suite.addTest(new TestSuite(AtomicBooleanTest.class));
443	<	suite.addTest(new TestSuite(AtomicIntegerArrayTest.class));
444	<	suite.addTest(new TestSuite(AtomicIntegerFieldUpdaterTest.class));
445	<	suite.addTest(new TestSuite(AtomicIntegerTest.class));
446	<	suite.addTest(new TestSuite(AtomicLongArrayTest.class));
447	<	suite.addTest(new TestSuite(AtomicLongFieldUpdaterTest.class));
448	<	suite.addTest(new TestSuite(AtomicLongTest.class));
449	<	suite.addTest(new TestSuite(AtomicMarkableReferenceTest.class));
450	<	suite.addTest(new TestSuite(AtomicReferenceArrayTest.class));
451	<	suite.addTest(new TestSuite(AtomicReferenceFieldUpdaterTest.class));
452	<	suite.addTest(new TestSuite(AtomicReferenceTest.class));
453	<	suite.addTest(new TestSuite(AtomicStampedReferenceTest.class));
454	<	suite.addTest(new TestSuite(ConcurrentHashMapTest.class));
455	<	suite.addTest(new TestSuite(ConcurrentLinkedQueueTest.class));
456	<	suite.addTest(new TestSuite(ConcurrentSkipListMapTest.class));
457	<	suite.addTest(new TestSuite(ConcurrentSkipListSubMapTest.class));
458	<	suite.addTest(new TestSuite(ConcurrentSkipListSetTest.class));
459	<	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(ExchangerTest.class));
141	<	suite.addTest(new TestSuite(ExecutorsTest.class));
142	<	suite.addTest(new TestSuite(ExecutorCompletionServiceTest.class));
143	<	suite.addTest(new TestSuite(FutureTaskTest.class));
144	<	suite.addTest(new TestSuite(LinkedBlockingDequeTest.class));
145	<	suite.addTest(new TestSuite(LinkedBlockingQueueTest.class));
146	<	suite.addTest(new TestSuite(LinkedListTest.class));
147	<	suite.addTest(new TestSuite(LockSupportTest.class));
148	<	suite.addTest(new TestSuite(PriorityBlockingQueueTest.class));
149	<	suite.addTest(new TestSuite(PriorityQueueTest.class));
150	<	suite.addTest(new TestSuite(ReentrantLockTest.class));
151	<	suite.addTest(new TestSuite(ReentrantReadWriteLockTest.class));
152	<	suite.addTest(new TestSuite(ScheduledExecutorTest.class));
153	<	suite.addTest(new TestSuite(ScheduledExecutorSubclassTest.class));
154	<	suite.addTest(new TestSuite(SemaphoreTest.class));
155	<	suite.addTest(new TestSuite(SynchronousQueueTest.class));
156	<	suite.addTest(new TestSuite(SystemTest.class));
157	<	suite.addTest(new TestSuite(ThreadLocalTest.class));
158	<	suite.addTest(new TestSuite(ThreadPoolExecutorTest.class));
159	<	suite.addTest(new TestSuite(ThreadPoolExecutorSubclassTest.class));
160	<	suite.addTest(new TestSuite(ThreadTest.class));
161	<	suite.addTest(new TestSuite(TimeUnitTest.class));
162	<	suite.addTest(new TestSuite(TreeMapTest.class));
163	<	suite.addTest(new TestSuite(TreeSetTest.class));
164	<	suite.addTest(new TestSuite(TreeSubMapTest.class));
165	<	suite.addTest(new TestSuite(TreeSubSetTest.class));
436	>	/**
437	>	* Returns junit-style testSuite for the jdk8 extension of the
438	>	* given test class, but parameterized by passing extra data to
439	>	* each test.  Uses reflection to allow compilation in jdk7.
440	>	*/
441	>	public static <ExtraData> Test jdk8ParameterizedTestSuite
442	>	(Class<? extends JSR166TestCase> testClass,
443	>	Class<ExtraData> dataClass,
444	>	ExtraData data) {
445	>	if (atLeastJava8()) {
446	>	String name = testClass.getName();
447	>	String name8 = name.replaceAll("Test$", "8Test");
448	>	if (name.equals(name8)) throw new Error(name);
449	>	try {
450	>	return (Test)
451	>	Class.forName(name8)
452	>	.getMethod("testSuite", new Class[] { dataClass })
453	>	.invoke(null, data);
454	>	} catch (Exception e) {
455	>	throw new Error(e);
456	>	}
457	>	} else {
458	>	return new TestSuite();
459	>	}
460
167	–	return suite;
461		}
462
463	+	// Delays for timing-dependent tests, in milliseconds.
464
465		public static long SHORT_DELAY_MS;
466		public static long SMALL_DELAY_MS;
467		public static long MEDIUM_DELAY_MS;
468		public static long LONG_DELAY_MS;
469
176	–
470		/**
471		* Returns the shortest timed delay. This could
472		* be reimplemented to use for example a Property.
#	Line 182 | Line 475 | public class JSR166TestCase extends Test
475		return 50;
476		}
477
185	–
478		/**
479		* Sets delays as multiples of SHORT_DELAY.
480		*/
481	<	protected  void setDelays() {
481	>	protected void setDelays() {
482		SHORT_DELAY_MS = getShortDelay();
483	<	SMALL_DELAY_MS = SHORT_DELAY_MS * 5;
483	>	SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
484		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
485	<	LONG_DELAY_MS = SHORT_DELAY_MS * 50;
485	>	LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
486	>	}
487	>
488	>	/**
489	>	* Returns a timeout in milliseconds to be used in tests that
490	>	* verify that operations block or time out.
491	>	*/
492	>	long timeoutMillis() {
493	>	return SHORT_DELAY_MS / 4;
494		}
495
496		/**
497	<	* Flag set true if any threadAssert methods fail
497	>	* Returns a new Date instance representing a time at least
498	>	* delayMillis milliseconds in the future.
499		*/
500	<	volatile boolean threadFailed;
500	>	Date delayedDate(long delayMillis) {
501	>	// Add 1 because currentTimeMillis is known to round into the past.
502	>	return new Date(System.currentTimeMillis() + delayMillis + 1);
503	>	}
504
505		/**
506	<	* Initializes test to indicate that no thread assertions have failed
506	>	* The first exception encountered if any threadAssertXXX method fails.
507		*/
508	+	private final AtomicReference<Throwable> threadFailure
509	+	= new AtomicReference<Throwable>(null);
510	+
511	+	/**
512	+	* Records an exception so that it can be rethrown later in the test
513	+	* harness thread, triggering a test case failure.  Only the first
514	+	* failure is recorded; subsequent calls to this method from within
515	+	* the same test have no effect.
516	+	*/
517	+	public void threadRecordFailure(Throwable t) {
518	+	threadFailure.compareAndSet(null, t);
519	+	}
520	+
521		public void setUp() {
522		setDelays();
523	<	threadFailed = false;
523	>	}
524	>
525	>	void tearDownFail(String format, Object... args) {
526	>	String msg = toString() + ": " + String.format(format, args);
527	>	System.err.println(msg);
528	>	printAllStackTraces();
529	>	throw new AssertionFailedError(msg);
530		}
531
532		/**
533	<	* Triggers test case failure if any thread assertions have failed
533	>	* Extra checks that get done for all test cases.
534	>	*
535	>	* Triggers test case failure if any thread assertions have failed,
536	>	* by rethrowing, in the test harness thread, any exception recorded
537	>	* earlier by threadRecordFailure.
538	>	*
539	>	* Triggers test case failure if interrupt status is set in the main thread.
540		*/
541	<	public void tearDown() {
542	<	assertFalse(threadFailed);
541	>	public void tearDown() throws Exception {
542	>	Throwable t = threadFailure.getAndSet(null);
543	>	if (t != null) {
544	>	if (t instanceof Error)
545	>	throw (Error) t;
546	>	else if (t instanceof RuntimeException)
547	>	throw (RuntimeException) t;
548	>	else if (t instanceof Exception)
549	>	throw (Exception) t;
550	>	else {
551	>	AssertionFailedError afe =
552	>	new AssertionFailedError(t.toString());
553	>	afe.initCause(t);
554	>	throw afe;
555	>	}
556	>	}
557	>
558	>	if (Thread.interrupted())
559	>	tearDownFail("interrupt status set in main thread");
560	>
561	>	checkForkJoinPoolThreadLeaks();
562	>	}
563	>
564	>	/**
565	>	* Finds missing try { ... } finally { joinPool(e); }
566	>	*/
567	>	void checkForkJoinPoolThreadLeaks() throws InterruptedException {
568	>	Thread[] survivors = new Thread[7];
569	>	int count = Thread.enumerate(survivors);
570	>	for (int i = 0; i < count; i++) {
571	>	Thread thread = survivors[i];
572	>	String name = thread.getName();
573	>	if (name.startsWith("ForkJoinPool-")) {
574	>	// give thread some time to terminate
575	>	thread.join(LONG_DELAY_MS);
576	>	if (thread.isAlive())
577	>	tearDownFail("Found leaked ForkJoinPool thread thread=%s",
578	>	thread);
579	>	}
580	>	}
581	>
582	>	if (!ForkJoinPool.commonPool()
583	>	.awaitQuiescence(LONG_DELAY_MS, MILLISECONDS))
584	>	tearDownFail("ForkJoin common pool thread stuck");
585		}
586
587		/**
588	<	* Fail, also setting status to indicate current testcase should fail
588	>	* Just like fail(reason), but additionally recording (using
589	>	* threadRecordFailure) any AssertionFailedError thrown, so that
590	>	* the current testcase will fail.
591		*/
592		public void threadFail(String reason) {
593	<	threadFailed = true;
594	<	fail(reason);
593	>	try {
594	>	fail(reason);
595	>	} catch (AssertionFailedError t) {
596	>	threadRecordFailure(t);
597	>	fail(reason);
598	>	}
599		}
600
601		/**
602	<	* If expression not true, set status to indicate current testcase
603	<	* should fail
602	>	* Just like assertTrue(b), but additionally recording (using
603	>	* threadRecordFailure) any AssertionFailedError thrown, so that
604	>	* the current testcase will fail.
605		*/
606		public void threadAssertTrue(boolean b) {
607	<	if (!b) {
230	<	threadFailed = true;
607	>	try {
608		assertTrue(b);
609	+	} catch (AssertionFailedError t) {
610	+	threadRecordFailure(t);
611	+	throw t;
612		}
613		}
614
615		/**
616	<	* If expression not false, set status to indicate current testcase
617	<	* should fail
616	>	* Just like assertFalse(b), but additionally recording (using
617	>	* threadRecordFailure) any AssertionFailedError thrown, so that
618	>	* the current testcase will fail.
619		*/
620		public void threadAssertFalse(boolean b) {
621	<	if (b) {
241	<	threadFailed = true;
621	>	try {
622		assertFalse(b);
623	+	} catch (AssertionFailedError t) {
624	+	threadRecordFailure(t);
625	+	throw t;
626		}
627		}
628
629		/**
630	<	* If argument not null, set status to indicate current testcase
631	<	* should fail
630	>	* Just like assertNull(x), but additionally recording (using
631	>	* threadRecordFailure) any AssertionFailedError thrown, so that
632	>	* the current testcase will fail.
633		*/
634		public void threadAssertNull(Object x) {
635	<	if (x != null) {
252	<	threadFailed = true;
635	>	try {
636		assertNull(x);
637	+	} catch (AssertionFailedError t) {
638	+	threadRecordFailure(t);
639	+	throw t;
640		}
641		}
642
643		/**
644	<	* If arguments not equal, set status to indicate current testcase
645	<	* should fail
644	>	* Just like assertEquals(x, y), but additionally recording (using
645	>	* threadRecordFailure) any AssertionFailedError thrown, so that
646	>	* the current testcase will fail.
647		*/
648		public void threadAssertEquals(long x, long y) {
649	<	if (x != y) {
263	<	threadFailed = true;
649	>	try {
650		assertEquals(x, y);
651	+	} catch (AssertionFailedError t) {
652	+	threadRecordFailure(t);
653	+	throw t;
654		}
655		}
656
657		/**
658	<	* If arguments not equal, set status to indicate current testcase
659	<	* should fail
658	>	* Just like assertEquals(x, y), but additionally recording (using
659	>	* threadRecordFailure) any AssertionFailedError thrown, so that
660	>	* the current testcase will fail.
661		*/
662		public void threadAssertEquals(Object x, Object y) {
663	<	if (x != y && (x == null || !x.equals(y))) {
274	<	threadFailed = true;
663	>	try {
664		assertEquals(x, y);
665	+	} catch (AssertionFailedError fail) {
666	+	threadRecordFailure(fail);
667	+	throw fail;
668	+	} catch (Throwable fail) {
669	+	threadUnexpectedException(fail);
670	+	}
671	+	}
672	+
673	+	/**
674	+	* Just like assertSame(x, y), but additionally recording (using
675	+	* threadRecordFailure) any AssertionFailedError thrown, so that
676	+	* the current testcase will fail.
677	+	*/
678	+	public void threadAssertSame(Object x, Object y) {
679	+	try {
680	+	assertSame(x, y);
681	+	} catch (AssertionFailedError fail) {
682	+	threadRecordFailure(fail);
683	+	throw fail;
684		}
685		}
686
687		/**
688	<	* threadFail with message "should throw exception"
688	>	* Calls threadFail with message "should throw exception".
689		*/
690		public void threadShouldThrow() {
691	<	threadFailed = true;
284	<	fail("should throw exception");
691	>	threadFail("should throw exception");
692		}
693
694		/**
695	<	* threadFail with message "Unexpected exception"
695	>	* Calls threadFail with message "should throw" + exceptionName.
696		*/
697	<	public void threadUnexpectedException() {
698	<	threadFailed = true;
292	<	fail("Unexpected exception");
697	>	public void threadShouldThrow(String exceptionName) {
698	>	threadFail("should throw " + exceptionName);
699		}
700
701	+	/**
702	+	* Records the given exception using {@link #threadRecordFailure},
703	+	* then rethrows the exception, wrapping it in an
704	+	* AssertionFailedError if necessary.
705	+	*/
706	+	public void threadUnexpectedException(Throwable t) {
707	+	threadRecordFailure(t);
708	+	t.printStackTrace();
709	+	if (t instanceof RuntimeException)
710	+	throw (RuntimeException) t;
711	+	else if (t instanceof Error)
712	+	throw (Error) t;
713	+	else {
714	+	AssertionFailedError afe =
715	+	new AssertionFailedError("unexpected exception: " + t);
716	+	afe.initCause(t);
717	+	throw afe;
718	+	}
719	+	}
720	+
721	+	/**
722	+	* Delays, via Thread.sleep, for the given millisecond delay, but
723	+	* if the sleep is shorter than specified, may re-sleep or yield
724	+	* until time elapses.
725	+	*/
726	+	static void delay(long millis) throws InterruptedException {
727	+	long startTime = System.nanoTime();
728	+	long ns = millis * 1000 * 1000;
729	+	for (;;) {
730	+	if (millis > 0L)
731	+	Thread.sleep(millis);
732	+	else // too short to sleep
733	+	Thread.yield();
734	+	long d = ns - (System.nanoTime() - startTime);
735	+	if (d > 0L)
736	+	millis = d / (1000 * 1000);
737	+	else
738	+	break;
739	+	}
740	+	}
741
742		/**
743	<	* Wait out termination of a thread pool or fail doing so
743	>	* Waits out termination of a thread pool or fails doing so.
744		*/
745	<	public void joinPool(ExecutorService exec) {
745	>	void joinPool(ExecutorService pool) {
746		try {
747	<	exec.shutdown();
748	<	assertTrue(exec.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
749	<	} catch(SecurityException ok) {
747	>	pool.shutdown();
748	>	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS))
749	>	fail("ExecutorService " + pool +
750	>	" did not terminate in a timely manner");
751	>	} catch (SecurityException ok) {
752		// Allowed in case test doesn't have privs
753	<	} catch(InterruptedException ie) {
754	<	fail("Unexpected exception");
753	>	} catch (InterruptedException fail) {
754	>	fail("Unexpected InterruptedException");
755		}
756		}
757
758	+	/** Like Runnable, but with the freedom to throw anything */
759	+	interface Action { public void run() throws Throwable; }
760
761		/**
762	<	* fail with message "should throw exception"
762	>	* Runs all the given actions in parallel, failing if any fail.
763	>	* Useful for running multiple variants of tests that are
764	>	* necessarily individually slow because they must block.
765	>	*/
766	>	void testInParallel(Action ... actions) {
767	>	ExecutorService pool = Executors.newCachedThreadPool();
768	>	try {
769	>	ArrayList<Future<?>> futures = new ArrayList<>(actions.length);
770	>	for (final Action action : actions)
771	>	futures.add(pool.submit(new CheckedRunnable() {
772	>	public void realRun() throws Throwable { action.run();}}));
773	>	for (Future<?> future : futures)
774	>	try {
775	>	assertNull(future.get(LONG_DELAY_MS, MILLISECONDS));
776	>	} catch (ExecutionException ex) {
777	>	threadUnexpectedException(ex.getCause());
778	>	} catch (Exception ex) {
779	>	threadUnexpectedException(ex);
780	>	}
781	>	} finally {
782	>	joinPool(pool);
783	>	}
784	>	}
785	>
786	>	/**
787	>	* A debugging tool to print all stack traces, as jstack does.
788	>	*/
789	>	static void printAllStackTraces() {
790	>	for (ThreadInfo info :
791	>	ManagementFactory.getThreadMXBean()
792	>	.dumpAllThreads(true, true))
793	>	System.err.print(info);
794	>	}
795	>
796	>	/**
797	>	* Checks that thread does not terminate within the default
798	>	* millisecond delay of {@code timeoutMillis()}.
799	>	*/
800	>	void assertThreadStaysAlive(Thread thread) {
801	>	assertThreadStaysAlive(thread, timeoutMillis());
802	>	}
803	>
804	>	/**
805	>	* Checks that thread does not terminate within the given millisecond delay.
806	>	*/
807	>	void assertThreadStaysAlive(Thread thread, long millis) {
808	>	try {
809	>	// No need to optimize the failing case via Thread.join.
810	>	delay(millis);
811	>	assertTrue(thread.isAlive());
812	>	} catch (InterruptedException fail) {
813	>	fail("Unexpected InterruptedException");
814	>	}
815	>	}
816	>
817	>	/**
818	>	* Checks that the threads do not terminate within the default
819	>	* millisecond delay of {@code timeoutMillis()}.
820	>	*/
821	>	void assertThreadsStayAlive(Thread... threads) {
822	>	assertThreadsStayAlive(timeoutMillis(), threads);
823	>	}
824	>
825	>	/**
826	>	* Checks that the threads do not terminate within the given millisecond delay.
827	>	*/
828	>	void assertThreadsStayAlive(long millis, Thread... threads) {
829	>	try {
830	>	// No need to optimize the failing case via Thread.join.
831	>	delay(millis);
832	>	for (Thread thread : threads)
833	>	assertTrue(thread.isAlive());
834	>	} catch (InterruptedException fail) {
835	>	fail("Unexpected InterruptedException");
836	>	}
837	>	}
838	>
839	>	/**
840	>	* Checks that future.get times out, with the default timeout of
841	>	* {@code timeoutMillis()}.
842	>	*/
843	>	void assertFutureTimesOut(Future future) {
844	>	assertFutureTimesOut(future, timeoutMillis());
845	>	}
846	>
847	>	/**
848	>	* Checks that future.get times out, with the given millisecond timeout.
849	>	*/
850	>	void assertFutureTimesOut(Future future, long timeoutMillis) {
851	>	long startTime = System.nanoTime();
852	>	try {
853	>	future.get(timeoutMillis, MILLISECONDS);
854	>	shouldThrow();
855	>	} catch (TimeoutException success) {
856	>	} catch (Exception fail) {
857	>	threadUnexpectedException(fail);
858	>	} finally { future.cancel(true); }
859	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
860	>	}
861	>
862	>	/**
863	>	* Fails with message "should throw exception".
864		*/
865		public void shouldThrow() {
866		fail("Should throw exception");
867		}
868
869		/**
870	<	* fail with message "Unexpected exception"
870	>	* Fails with message "should throw " + exceptionName.
871		*/
872	<	public void unexpectedException() {
873	<	fail("Unexpected exception");
872	>	public void shouldThrow(String exceptionName) {
873	>	fail("Should throw " + exceptionName);
874		}
875
325	–
876		/**
877		* The number of elements to place in collections, arrays, etc.
878		*/
879	<	static final int SIZE = 20;
879	>	public static final int SIZE = 20;
880
881		// Some convenient Integer constants
882
883	<	static final Integer zero = new Integer(0);
884	<	static final Integer one = new Integer(1);
885	<	static final Integer two = new Integer(2);
886	<	static final Integer three  = new Integer(3);
887	<	static final Integer four  = new Integer(4);
888	<	static final Integer five  = new Integer(5);
889	<	static final Integer six = new Integer(6);
890	<	static final Integer seven = new Integer(7);
891	<	static final Integer eight = new Integer(8);
892	<	static final Integer nine = new Integer(9);
893	<	static final Integer m1  = new Integer(-1);
894	<	static final Integer m2  = new Integer(-2);
895	<	static final Integer m3  = new Integer(-3);
896	<	static final Integer m4 = new Integer(-4);
897	<	static final Integer m5 = new Integer(-5);
898	<	static final Integer m10 = new Integer(-10);
883	>	public static final Integer zero  = new Integer(0);
884	>	public static final Integer one   = new Integer(1);
885	>	public static final Integer two   = new Integer(2);
886	>	public static final Integer three = new Integer(3);
887	>	public static final Integer four  = new Integer(4);
888	>	public static final Integer five  = new Integer(5);
889	>	public static final Integer six   = new Integer(6);
890	>	public static final Integer seven = new Integer(7);
891	>	public static final Integer eight = new Integer(8);
892	>	public static final Integer nine  = new Integer(9);
893	>	public static final Integer m1  = new Integer(-1);
894	>	public static final Integer m2  = new Integer(-2);
895	>	public static final Integer m3  = new Integer(-3);
896	>	public static final Integer m4  = new Integer(-4);
897	>	public static final Integer m5  = new Integer(-5);
898	>	public static final Integer m6  = new Integer(-6);
899	>	public static final Integer m10 = new Integer(-10);
900	>
901	>	/**
902	>	* Runs Runnable r with a security policy that permits precisely
903	>	* the specified permissions.  If there is no current security
904	>	* manager, the runnable is run twice, both with and without a
905	>	* security manager.  We require that any security manager permit
906	>	* getPolicy/setPolicy.
907	>	*/
908	>	public void runWithPermissions(Runnable r, Permission... permissions) {
909	>	SecurityManager sm = System.getSecurityManager();
910	>	if (sm == null) {
911	>	r.run();
912	>	}
913	>	runWithSecurityManagerWithPermissions(r, permissions);
914	>	}
915
916	+	/**
917	+	* Runs Runnable r with a security policy that permits precisely
918	+	* the specified permissions.  If there is no current security
919	+	* manager, a temporary one is set for the duration of the
920	+	* Runnable.  We require that any security manager permit
921	+	* getPolicy/setPolicy.
922	+	*/
923	+	public void runWithSecurityManagerWithPermissions(Runnable r,
924	+	Permission... permissions) {
925	+	SecurityManager sm = System.getSecurityManager();
926	+	if (sm == null) {
927	+	Policy savedPolicy = Policy.getPolicy();
928	+	try {
929	+	Policy.setPolicy(permissivePolicy());
930	+	System.setSecurityManager(new SecurityManager());
931	+	runWithSecurityManagerWithPermissions(r, permissions);
932	+	} finally {
933	+	System.setSecurityManager(null);
934	+	Policy.setPolicy(savedPolicy);
935	+	}
936	+	} else {
937	+	Policy savedPolicy = Policy.getPolicy();
938	+	AdjustablePolicy policy = new AdjustablePolicy(permissions);
939	+	Policy.setPolicy(policy);
940	+
941	+	try {
942	+	r.run();
943	+	} finally {
944	+	policy.addPermission(new SecurityPermission("setPolicy"));
945	+	Policy.setPolicy(savedPolicy);
946	+	}
947	+	}
948	+	}
949	+
950	+	/**
951	+	* Runs a runnable without any permissions.
952	+	*/
953	+	public void runWithoutPermissions(Runnable r) {
954	+	runWithPermissions(r);
955	+	}
956
957		/**
958		* A security policy where new permissions can be dynamically added
959		* or all cleared.
960		*/
961	<	static class AdjustablePolicy extends java.security.Policy {
961	>	public static class AdjustablePolicy extends java.security.Policy {
962		Permissions perms = new Permissions();
963	<	AdjustablePolicy() { }
963	>	AdjustablePolicy(Permission... permissions) {
964	>	for (Permission permission : permissions)
965	>	perms.add(permission);
966	>	}
967		void addPermission(Permission perm) { perms.add(perm); }
968		void clearPermissions() { perms = new Permissions(); }
969	<	public PermissionCollection getPermissions(CodeSource cs) {
970	<	return perms;
971	<	}
972	<	public PermissionCollection getPermissions(ProtectionDomain pd) {
973	<	return perms;
974	<	}
975	<	public boolean implies(ProtectionDomain pd, Permission p) {
976	<	return perms.implies(p);
977	<	}
978	<	public void refresh() {}
969	>	public PermissionCollection getPermissions(CodeSource cs) {
970	>	return perms;
971	>	}
972	>	public PermissionCollection getPermissions(ProtectionDomain pd) {
973	>	return perms;
974	>	}
975	>	public boolean implies(ProtectionDomain pd, Permission p) {
976	>	return perms.implies(p);
977	>	}
978	>	public void refresh() {}
979	>	public String toString() {
980	>	List<Permission> ps = new ArrayList<Permission>();
981	>	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
982	>	ps.add(e.nextElement());
983	>	return "AdjustablePolicy with permissions " + ps;
984	>	}
985		}
986
987	+	/**
988	+	* Returns a policy containing all the permissions we ever need.
989	+	*/
990	+	public static Policy permissivePolicy() {
991	+	return new AdjustablePolicy
992	+	// Permissions j.u.c. needs directly
993	+	(new RuntimePermission("modifyThread"),
994	+	new RuntimePermission("getClassLoader"),
995	+	new RuntimePermission("setContextClassLoader"),
996	+	// Permissions needed to change permissions!
997	+	new SecurityPermission("getPolicy"),
998	+	new SecurityPermission("setPolicy"),
999	+	new RuntimePermission("setSecurityManager"),
1000	+	// Permissions needed by the junit test harness
1001	+	new RuntimePermission("accessDeclaredMembers"),
1002	+	new PropertyPermission("*", "read"),
1003	+	new java.io.FilePermission("<<ALL FILES>>", "read"));
1004	+	}
1005
1006	<	// Some convenient Runnable classes
1006	>	/**
1007	>	* Sleeps until the given time has elapsed.
1008	>	* Throws AssertionFailedError if interrupted.
1009	>	*/
1010	>	void sleep(long millis) {
1011	>	try {
1012	>	delay(millis);
1013	>	} catch (InterruptedException fail) {
1014	>	AssertionFailedError afe =
1015	>	new AssertionFailedError("Unexpected InterruptedException");
1016	>	afe.initCause(fail);
1017	>	throw afe;
1018	>	}
1019	>	}
1020
1021	<	static class NoOpRunnable implements Runnable {
1022	<	public void run() {}
1021	>	/**
1022	>	* Spin-waits up to the specified number of milliseconds for the given
1023	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1024	>	*/
1025	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1026	>	long startTime = System.nanoTime();
1027	>	for (;;) {
1028	>	Thread.State s = thread.getState();
1029	>	if (s == Thread.State.BLOCKED ||
1030	>	s == Thread.State.WAITING ||
1031	>	s == Thread.State.TIMED_WAITING)
1032	>	return;
1033	>	else if (s == Thread.State.TERMINATED)
1034	>	fail("Unexpected thread termination");
1035	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
1036	>	threadAssertTrue(thread.isAlive());
1037	>	return;
1038	>	}
1039	>	Thread.yield();
1040	>	}
1041		}
1042
1043	<	static class NoOpCallable implements Callable {
1044	<	public Object call() { return Boolean.TRUE; }
1043	>	/**
1044	>	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
1045	>	* state: BLOCKED, WAITING, or TIMED_WAITING.
1046	>	*/
1047	>	void waitForThreadToEnterWaitState(Thread thread) {
1048	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
1049	>	}
1050	>
1051	>	/**
1052	>	* Returns the number of milliseconds since time given by
1053	>	* startNanoTime, which must have been previously returned from a
1054	>	* call to {@link System#nanoTime()}.
1055	>	*/
1056	>	static long millisElapsedSince(long startNanoTime) {
1057	>	return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
1058		}
1059
1060	<	static final String TEST_STRING = "a test string";
1060	>	//     void assertTerminatesPromptly(long timeoutMillis, Runnable r) {
1061	>	//         long startTime = System.nanoTime();
1062	>	//         try {
1063	>	//             r.run();
1064	>	//         } catch (Throwable fail) { threadUnexpectedException(fail); }
1065	>	//         if (millisElapsedSince(startTime) > timeoutMillis/2)
1066	>	//             throw new AssertionFailedError("did not return promptly");
1067	>	//     }
1068	>
1069	>	//     void assertTerminatesPromptly(Runnable r) {
1070	>	//         assertTerminatesPromptly(LONG_DELAY_MS/2, r);
1071	>	//     }
1072
1073	<	static class StringTask implements Callable<String> {
1074	<	public String call() { return TEST_STRING; }
1073	>	/**
1074	>	* Checks that timed f.get() returns the expected value, and does not
1075	>	* wait for the timeout to elapse before returning.
1076	>	*/
1077	>	<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
1078	>	long startTime = System.nanoTime();
1079	>	try {
1080	>	assertEquals(expectedValue, f.get(timeoutMillis, MILLISECONDS));
1081	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
1082	>	if (millisElapsedSince(startTime) > timeoutMillis/2)
1083	>	throw new AssertionFailedError("timed get did not return promptly");
1084		}
1085
1086	<	static class NPETask implements Callable<String> {
1087	<	public String call() { throw new NullPointerException(); }
1086	>	<T> void checkTimedGet(Future<T> f, T expectedValue) {
1087	>	checkTimedGet(f, expectedValue, LONG_DELAY_MS);
1088		}
1089
1090	<	static class CallableOne implements Callable<Integer> {
1091	<	public Integer call() { return one; }
1090	>	/**
1091	>	* Returns a new started daemon Thread running the given runnable.
1092	>	*/
1093	>	Thread newStartedThread(Runnable runnable) {
1094	>	Thread t = new Thread(runnable);
1095	>	t.setDaemon(true);
1096	>	t.start();
1097	>	return t;
1098		}
1099
1100	<	class ShortRunnable implements Runnable {
1101	<	public void run() {
1102	<	try {
1103	<	Thread.sleep(SHORT_DELAY_MS);
1104	<	}
1105	<	catch(Exception e) {
1106	<	threadUnexpectedException();
1100	>	/**
1101	>	* Waits for the specified time (in milliseconds) for the thread
1102	>	* to terminate (using {@link Thread#join(long)}), else interrupts
1103	>	* the thread (in the hope that it may terminate later) and fails.
1104	>	*/
1105	>	void awaitTermination(Thread t, long timeoutMillis) {
1106	>	try {
1107	>	t.join(timeoutMillis);
1108	>	} catch (InterruptedException fail) {
1109	>	threadUnexpectedException(fail);
1110	>	} finally {
1111	>	if (t.getState() != Thread.State.TERMINATED) {
1112	>	t.interrupt();
1113	>	fail("Test timed out");
1114		}
1115		}
1116		}
1117
1118	<	class ShortInterruptedRunnable implements Runnable {
1119	<	public void run() {
1118	>	/**
1119	>	* Waits for LONG_DELAY_MS milliseconds for the thread to
1120	>	* terminate (using {@link Thread#join(long)}), else interrupts
1121	>	* the thread (in the hope that it may terminate later) and fails.
1122	>	*/
1123	>	void awaitTermination(Thread t) {
1124	>	awaitTermination(t, LONG_DELAY_MS);
1125	>	}
1126	>
1127	>	// Some convenient Runnable classes
1128	>
1129	>	public abstract class CheckedRunnable implements Runnable {
1130	>	protected abstract void realRun() throws Throwable;
1131	>
1132	>	public final void run() {
1133		try {
1134	<	Thread.sleep(SHORT_DELAY_MS);
1135	<	threadShouldThrow();
1136	<	}
414	<	catch(InterruptedException success) {
1134	>	realRun();
1135	>	} catch (Throwable fail) {
1136	>	threadUnexpectedException(fail);
1137		}
1138		}
1139		}
1140
1141	<	class SmallRunnable implements Runnable {
1142	<	public void run() {
1141	>	public abstract class RunnableShouldThrow implements Runnable {
1142	>	protected abstract void realRun() throws Throwable;
1143	>
1144	>	final Class<?> exceptionClass;
1145	>
1146	>	<T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) {
1147	>	this.exceptionClass = exceptionClass;
1148	>	}
1149	>
1150	>	public final void run() {
1151		try {
1152	<	Thread.sleep(SMALL_DELAY_MS);
1153	<	}
1154	<	catch(Exception e) {
1155	<	threadUnexpectedException();
1152	>	realRun();
1153	>	threadShouldThrow(exceptionClass.getSimpleName());
1154	>	} catch (Throwable t) {
1155	>	if (! exceptionClass.isInstance(t))
1156	>	threadUnexpectedException(t);
1157		}
1158		}
1159		}
1160
1161	<	class SmallPossiblyInterruptedRunnable implements Runnable {
1162	<	public void run() {
1161	>	public abstract class ThreadShouldThrow extends Thread {
1162	>	protected abstract void realRun() throws Throwable;
1163	>
1164	>	final Class<?> exceptionClass;
1165	>
1166	>	<T extends Throwable> ThreadShouldThrow(Class<T> exceptionClass) {
1167	>	this.exceptionClass = exceptionClass;
1168	>	}
1169	>
1170	>	public final void run() {
1171		try {
1172	<	Thread.sleep(SMALL_DELAY_MS);
1173	<	}
1174	<	catch(Exception e) {
1172	>	realRun();
1173	>	threadShouldThrow(exceptionClass.getSimpleName());
1174	>	} catch (Throwable t) {
1175	>	if (! exceptionClass.isInstance(t))
1176	>	threadUnexpectedException(t);
1177		}
1178		}
1179		}
1180
1181	<	class SmallCallable implements Callable {
1182	<	public Object call() {
1181	>	public abstract class CheckedInterruptedRunnable implements Runnable {
1182	>	protected abstract void realRun() throws Throwable;
1183	>
1184	>	public final void run() {
1185		try {
1186	<	Thread.sleep(SMALL_DELAY_MS);
1186	>	realRun();
1187	>	threadShouldThrow("InterruptedException");
1188	>	} catch (InterruptedException success) {
1189	>	threadAssertFalse(Thread.interrupted());
1190	>	} catch (Throwable fail) {
1191	>	threadUnexpectedException(fail);
1192		}
445	–	catch(Exception e) {
446	–	threadUnexpectedException();
447	–	}
448	–	return Boolean.TRUE;
1193		}
1194		}
1195
1196	<	class SmallInterruptedRunnable implements Runnable {
1197	<	public void run() {
1196	>	public abstract class CheckedCallable<T> implements Callable<T> {
1197	>	protected abstract T realCall() throws Throwable;
1198	>
1199	>	public final T call() {
1200		try {
1201	<	Thread.sleep(SMALL_DELAY_MS);
1202	<	threadShouldThrow();
1203	<	}
1204	<	catch(InterruptedException success) {
1201	>	return realCall();
1202	>	} catch (Throwable fail) {
1203	>	threadUnexpectedException(fail);
1204	>	return null;
1205		}
1206		}
1207		}
1208
1209	+	public abstract class CheckedInterruptedCallable<T>
1210	+	implements Callable<T> {
1211	+	protected abstract T realCall() throws Throwable;
1212
1213	<	class MediumRunnable implements Runnable {
465	<	public void run() {
1213	>	public final T call() {
1214		try {
1215	<	Thread.sleep(MEDIUM_DELAY_MS);
1216	<	}
1217	<	catch(Exception e) {
1218	<	threadUnexpectedException();
1215	>	T result = realCall();
1216	>	threadShouldThrow("InterruptedException");
1217	>	return result;
1218	>	} catch (InterruptedException success) {
1219	>	threadAssertFalse(Thread.interrupted());
1220	>	} catch (Throwable fail) {
1221	>	threadUnexpectedException(fail);
1222		}
1223	+	return null;
1224		}
1225		}
1226
1227	<	class MediumInterruptedRunnable implements Runnable {
1228	<	public void run() {
1227	>	public static class NoOpRunnable implements Runnable {
1228	>	public void run() {}
1229	>	}
1230	>
1231	>	public static class NoOpCallable implements Callable {
1232	>	public Object call() { return Boolean.TRUE; }
1233	>	}
1234	>
1235	>	public static final String TEST_STRING = "a test string";
1236	>
1237	>	public static class StringTask implements Callable<String> {
1238	>	final String value;
1239	>	public StringTask() { this(TEST_STRING); }
1240	>	public StringTask(String value) { this.value = value; }
1241	>	public String call() { return value; }
1242	>	}
1243	>
1244	>	public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
1245	>	return new CheckedCallable<String>() {
1246	>	protected String realCall() {
1247	>	try {
1248	>	latch.await();
1249	>	} catch (InterruptedException quittingTime) {}
1250	>	return TEST_STRING;
1251	>	}};
1252	>	}
1253	>
1254	>	public Runnable awaiter(final CountDownLatch latch) {
1255	>	return new CheckedRunnable() {
1256	>	public void realRun() throws InterruptedException {
1257	>	await(latch);
1258	>	}};
1259	>	}
1260	>
1261	>	public void await(CountDownLatch latch) {
1262	>	try {
1263	>	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1264	>	} catch (Throwable fail) {
1265	>	threadUnexpectedException(fail);
1266	>	}
1267	>	}
1268	>
1269	>	public void await(Semaphore semaphore) {
1270	>	try {
1271	>	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1272	>	} catch (Throwable fail) {
1273	>	threadUnexpectedException(fail);
1274	>	}
1275	>	}
1276	>
1277	>	//     /**
1278	>	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1279	>	//      */
1280	>	//     public void await(AtomicBoolean flag) {
1281	>	//         await(flag, LONG_DELAY_MS);
1282	>	//     }
1283	>
1284	>	//     /**
1285	>	//      * Spin-waits up to the specified timeout until flag becomes true.
1286	>	//      */
1287	>	//     public void await(AtomicBoolean flag, long timeoutMillis) {
1288	>	//         long startTime = System.nanoTime();
1289	>	//         while (!flag.get()) {
1290	>	//             if (millisElapsedSince(startTime) > timeoutMillis)
1291	>	//                 throw new AssertionFailedError("timed out");
1292	>	//             Thread.yield();
1293	>	//         }
1294	>	//     }
1295	>
1296	>	public static class NPETask implements Callable<String> {
1297	>	public String call() { throw new NullPointerException(); }
1298	>	}
1299	>
1300	>	public static class CallableOne implements Callable<Integer> {
1301	>	public Integer call() { return one; }
1302	>	}
1303	>
1304	>	public class ShortRunnable extends CheckedRunnable {
1305	>	protected void realRun() throws Throwable {
1306	>	delay(SHORT_DELAY_MS);
1307	>	}
1308	>	}
1309	>
1310	>	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1311	>	protected void realRun() throws InterruptedException {
1312	>	delay(SHORT_DELAY_MS);
1313	>	}
1314	>	}
1315	>
1316	>	public class SmallRunnable extends CheckedRunnable {
1317	>	protected void realRun() throws Throwable {
1318	>	delay(SMALL_DELAY_MS);
1319	>	}
1320	>	}
1321	>
1322	>	public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1323	>	protected void realRun() {
1324		try {
1325	<	Thread.sleep(MEDIUM_DELAY_MS);
1326	<	threadShouldThrow();
480	<	}
481	<	catch(InterruptedException success) {
482	<	}
1325	>	delay(SMALL_DELAY_MS);
1326	>	} catch (InterruptedException ok) {}
1327		}
1328		}
1329
1330	<	class MediumPossiblyInterruptedRunnable implements Runnable {
1331	<	public void run() {
1330	>	public class SmallCallable extends CheckedCallable {
1331	>	protected Object realCall() throws InterruptedException {
1332	>	delay(SMALL_DELAY_MS);
1333	>	return Boolean.TRUE;
1334	>	}
1335	>	}
1336	>
1337	>	public class MediumRunnable extends CheckedRunnable {
1338	>	protected void realRun() throws Throwable {
1339	>	delay(MEDIUM_DELAY_MS);
1340	>	}
1341	>	}
1342	>
1343	>	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1344	>	protected void realRun() throws InterruptedException {
1345	>	delay(MEDIUM_DELAY_MS);
1346	>	}
1347	>	}
1348	>
1349	>	public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1350	>	return new CheckedRunnable() {
1351	>	protected void realRun() {
1352	>	try {
1353	>	delay(timeoutMillis);
1354	>	} catch (InterruptedException ok) {}
1355	>	}};
1356	>	}
1357	>
1358	>	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1359	>	protected void realRun() {
1360		try {
1361	<	Thread.sleep(MEDIUM_DELAY_MS);
1362	<	}
491	<	catch(InterruptedException success) {
492	<	}
1361	>	delay(MEDIUM_DELAY_MS);
1362	>	} catch (InterruptedException ok) {}
1363		}
1364		}
1365
1366	<	class LongPossiblyInterruptedRunnable implements Runnable {
1367	<	public void run() {
1366	>	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1367	>	protected void realRun() {
1368		try {
1369	<	Thread.sleep(LONG_DELAY_MS);
1370	<	}
501	<	catch(InterruptedException success) {
502	<	}
1369	>	delay(LONG_DELAY_MS);
1370	>	} catch (InterruptedException ok) {}
1371		}
1372		}
1373
1374		/**
1375		* For use as ThreadFactory in constructors
1376		*/
1377	<	static class SimpleThreadFactory implements ThreadFactory{
1378	<	public Thread newThread(Runnable r){
1377	>	public static class SimpleThreadFactory implements ThreadFactory {
1378	>	public Thread newThread(Runnable r) {
1379		return new Thread(r);
1380		}
1381		}
1382
1383	<	static class TrackedShortRunnable implements Runnable {
1384	<	volatile boolean done = false;
1383	>	public interface TrackedRunnable extends Runnable {
1384	>	boolean isDone();
1385	>	}
1386	>
1387	>	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1388	>	return new TrackedRunnable() {
1389	>	private volatile boolean done = false;
1390	>	public boolean isDone() { return done; }
1391	>	public void run() {
1392	>	try {
1393	>	delay(timeoutMillis);
1394	>	done = true;
1395	>	} catch (InterruptedException ok) {}
1396	>	}
1397	>	};
1398	>	}
1399	>
1400	>	public static class TrackedShortRunnable implements Runnable {
1401	>	public volatile boolean done = false;
1402		public void run() {
1403		try {
1404	<	Thread.sleep(SMALL_DELAY_MS);
1404	>	delay(SHORT_DELAY_MS);
1405		done = true;
1406	<	} catch(Exception e){
522	<	}
1406	>	} catch (InterruptedException ok) {}
1407		}
1408		}
1409
1410	<	static class TrackedMediumRunnable implements Runnable {
1411	<	volatile boolean done = false;
1410	>	public static class TrackedSmallRunnable implements Runnable {
1411	>	public volatile boolean done = false;
1412		public void run() {
1413		try {
1414	<	Thread.sleep(MEDIUM_DELAY_MS);
1414	>	delay(SMALL_DELAY_MS);
1415		done = true;
1416	<	} catch(Exception e){
533	<	}
1416	>	} catch (InterruptedException ok) {}
1417		}
1418		}
1419
1420	<	static class TrackedLongRunnable implements Runnable {
1421	<	volatile boolean done = false;
1420	>	public static class TrackedMediumRunnable implements Runnable {
1421	>	public volatile boolean done = false;
1422		public void run() {
1423		try {
1424	<	Thread.sleep(LONG_DELAY_MS);
1424	>	delay(MEDIUM_DELAY_MS);
1425		done = true;
1426	<	} catch(Exception e){
544	<	}
1426	>	} catch (InterruptedException ok) {}
1427		}
1428		}
1429
1430	<	static class TrackedNoOpRunnable implements Runnable {
1431	<	volatile boolean done = false;
1430	>	public static class TrackedLongRunnable implements Runnable {
1431	>	public volatile boolean done = false;
1432	>	public void run() {
1433	>	try {
1434	>	delay(LONG_DELAY_MS);
1435	>	done = true;
1436	>	} catch (InterruptedException ok) {}
1437	>	}
1438	>	}
1439	>
1440	>	public static class TrackedNoOpRunnable implements Runnable {
1441	>	public volatile boolean done = false;
1442		public void run() {
1443		done = true;
1444		}
1445		}
1446
1447	<	static class TrackedCallable implements Callable {
1448	<	volatile boolean done = false;
1447	>	public static class TrackedCallable implements Callable {
1448	>	public volatile boolean done = false;
1449		public Object call() {
1450		try {
1451	<	Thread.sleep(SMALL_DELAY_MS);
1451	>	delay(SMALL_DELAY_MS);
1452		done = true;
1453	<	} catch(Exception e){
562	<	}
1453	>	} catch (InterruptedException ok) {}
1454		return Boolean.TRUE;
1455		}
1456		}
1457
1458	+	/**
1459	+	* Analog of CheckedRunnable for RecursiveAction
1460	+	*/
1461	+	public abstract class CheckedRecursiveAction extends RecursiveAction {
1462	+	protected abstract void realCompute() throws Throwable;
1463	+
1464	+	@Override protected final void compute() {
1465	+	try {
1466	+	realCompute();
1467	+	} catch (Throwable fail) {
1468	+	threadUnexpectedException(fail);
1469	+	}
1470	+	}
1471	+	}
1472	+
1473	+	/**
1474	+	* Analog of CheckedCallable for RecursiveTask
1475	+	*/
1476	+	public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1477	+	protected abstract T realCompute() throws Throwable;
1478	+
1479	+	@Override protected final T compute() {
1480	+	try {
1481	+	return realCompute();
1482	+	} catch (Throwable fail) {
1483	+	threadUnexpectedException(fail);
1484	+	return null;
1485	+	}
1486	+	}
1487	+	}
1488
1489		/**
1490		* For use as RejectedExecutionHandler in constructors
1491		*/
1492	<	static class NoOpREHandler implements RejectedExecutionHandler{
1493	<	public void rejectedExecution(Runnable r, ThreadPoolExecutor executor){}
1492	>	public static class NoOpREHandler implements RejectedExecutionHandler {
1493	>	public void rejectedExecution(Runnable r,
1494	>	ThreadPoolExecutor executor) {}
1495		}
1496
1497	+	/**
1498	+	* A CyclicBarrier that uses timed await and fails with
1499	+	* AssertionFailedErrors instead of throwing checked exceptions.
1500	+	*/
1501	+	public class CheckedBarrier extends CyclicBarrier {
1502	+	public CheckedBarrier(int parties) { super(parties); }
1503
1504	+	public int await() {
1505	+	try {
1506	+	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1507	+	} catch (TimeoutException timedOut) {
1508	+	throw new AssertionFailedError("timed out");
1509	+	} catch (Exception fail) {
1510	+	AssertionFailedError afe =
1511	+	new AssertionFailedError("Unexpected exception: " + fail);
1512	+	afe.initCause(fail);
1513	+	throw afe;
1514	+	}
1515	+	}
1516	+	}
1517	+
1518	+	void checkEmpty(BlockingQueue q) {
1519	+	try {
1520	+	assertTrue(q.isEmpty());
1521	+	assertEquals(0, q.size());
1522	+	assertNull(q.peek());
1523	+	assertNull(q.poll());
1524	+	assertNull(q.poll(0, MILLISECONDS));
1525	+	assertEquals(q.toString(), "[]");
1526	+	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1527	+	assertFalse(q.iterator().hasNext());
1528	+	try {
1529	+	q.element();
1530	+	shouldThrow();
1531	+	} catch (NoSuchElementException success) {}
1532	+	try {
1533	+	q.iterator().next();
1534	+	shouldThrow();
1535	+	} catch (NoSuchElementException success) {}
1536	+	try {
1537	+	q.remove();
1538	+	shouldThrow();
1539	+	} catch (NoSuchElementException success) {}
1540	+	} catch (InterruptedException fail) { threadUnexpectedException(fail); }
1541	+	}
1542	+
1543	+	void assertSerialEquals(Object x, Object y) {
1544	+	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1545	+	}
1546	+
1547	+	void assertNotSerialEquals(Object x, Object y) {
1548	+	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1549	+	}
1550	+
1551	+	byte[] serialBytes(Object o) {
1552	+	try {
1553	+	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1554	+	ObjectOutputStream oos = new ObjectOutputStream(bos);
1555	+	oos.writeObject(o);
1556	+	oos.flush();
1557	+	oos.close();
1558	+	return bos.toByteArray();
1559	+	} catch (Throwable fail) {
1560	+	threadUnexpectedException(fail);
1561	+	return new byte[0];
1562	+	}
1563	+	}
1564	+
1565	+	@SuppressWarnings("unchecked")
1566	+	<T> T serialClone(T o) {
1567	+	try {
1568	+	ObjectInputStream ois = new ObjectInputStream
1569	+	(new ByteArrayInputStream(serialBytes(o)));
1570	+	T clone = (T) ois.readObject();
1571	+	assertSame(o.getClass(), clone.getClass());
1572	+	return clone;
1573	+	} catch (Throwable fail) {
1574	+	threadUnexpectedException(fail);
1575	+	return null;
1576	+	}
1577	+	}
1578	+
1579	+	public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1580	+	Runnable... throwingActions) {
1581	+	for (Runnable throwingAction : throwingActions) {
1582	+	boolean threw = false;
1583	+	try { throwingAction.run(); }
1584	+	catch (Throwable t) {
1585	+	threw = true;
1586	+	if (!expectedExceptionClass.isInstance(t)) {
1587	+	AssertionFailedError afe =
1588	+	new AssertionFailedError
1589	+	("Expected " + expectedExceptionClass.getName() +
1590	+	", got " + t.getClass().getName());
1591	+	afe.initCause(t);
1592	+	threadUnexpectedException(afe);
1593	+	}
1594	+	}
1595	+	if (!threw)
1596	+	shouldThrow(expectedExceptionClass.getName());
1597	+	}
1598	+	}
1599	+
1600	+	public void assertIteratorExhausted(Iterator<?> it) {
1601	+	try {
1602	+	it.next();
1603	+	shouldThrow();
1604	+	} catch (NoSuchElementException success) {}
1605	+	assertFalse(it.hasNext());
1606	+	}
1607		}

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines