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Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.43 by jsr166, Sat Nov 21 10:25:05 2009 UTC vs.
Revision 1.172 by jsr166, Fri Oct 9 01:26:36 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.*;
9		import static java.util.concurrent.TimeUnit.MILLISECONDS;
10	<	import java.io.*;
11	<	import java.security.*;
10	>	import static java.util.concurrent.TimeUnit.MINUTES;
11	>	import static java.util.concurrent.TimeUnit.NANOSECONDS;
12	>
13	>	import java.io.ByteArrayInputStream;
14	>	import java.io.ByteArrayOutputStream;
15	>	import java.io.ObjectInputStream;
16	>	import java.io.ObjectOutputStream;
17	>	import java.lang.management.ManagementFactory;
18	>	import java.lang.management.ThreadInfo;
19	>	import java.lang.management.ThreadMXBean;
20	>	import java.lang.reflect.Constructor;
21	>	import java.lang.reflect.Method;
22	>	import java.lang.reflect.Modifier;
23	>	import java.nio.file.Files;
24	>	import java.nio.file.Paths;
25	>	import java.security.CodeSource;
26	>	import java.security.Permission;
27	>	import java.security.PermissionCollection;
28	>	import java.security.Permissions;
29	>	import java.security.Policy;
30	>	import java.security.ProtectionDomain;
31	>	import java.security.SecurityPermission;
32	>	import java.util.ArrayList;
33	>	import java.util.Arrays;
34	>	import java.util.Date;
35	>	import java.util.Enumeration;
36	>	import java.util.Iterator;
37	>	import java.util.List;
38	>	import java.util.NoSuchElementException;
39	>	import java.util.PropertyPermission;
40	>	import java.util.concurrent.BlockingQueue;
41	>	import java.util.concurrent.Callable;
42	>	import java.util.concurrent.CountDownLatch;
43	>	import java.util.concurrent.CyclicBarrier;
44	>	import java.util.concurrent.ExecutionException;
45	>	import java.util.concurrent.Executors;
46	>	import java.util.concurrent.ExecutorService;
47	>	import java.util.concurrent.ForkJoinPool;
48	>	import java.util.concurrent.Future;
49	>	import java.util.concurrent.RecursiveAction;
50	>	import java.util.concurrent.RecursiveTask;
51	>	import java.util.concurrent.RejectedExecutionHandler;
52	>	import java.util.concurrent.Semaphore;
53	>	import java.util.concurrent.ThreadFactory;
54	>	import java.util.concurrent.ThreadPoolExecutor;
55	>	import java.util.concurrent.TimeoutException;
56	>	import java.util.concurrent.atomic.AtomicReference;
57	>	import java.util.regex.Matcher;
58	>	import java.util.regex.Pattern;
59	>
60	>	import junit.framework.AssertionFailedError;
61	>	import junit.framework.Test;
62	>	import junit.framework.TestCase;
63	>	import junit.framework.TestResult;
64	>	import junit.framework.TestSuite;
65
66		/**
67		* Base class for JSR166 Junit TCK tests.  Defines some constants,
#	Line 23 | Line 73 | import java.security.*;
73		*
74		* <ol>
75		*
76	<	* <li> All assertions in code running in generated threads must use
76	>	* <li>All assertions in code running in generated threads must use
77		* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link
78		* #threadAssertEquals}, or {@link #threadAssertNull}, (not
79	<	* <tt>fail</tt>, <tt>assertTrue</tt>, etc.) It is OK (but not
79	>	* {@code fail}, {@code assertTrue}, etc.) It is OK (but not
80		* particularly recommended) for other code to use these forms too.
81		* Only the most typically used JUnit assertion methods are defined
82	<	* this way, but enough to live with.</li>
82	>	* this way, but enough to live with.
83		*
84	<	* <li> If you override {@link #setUp} or {@link #tearDown}, make sure
85	<	* to invoke <tt>super.setUp</tt> and <tt>super.tearDown</tt> within
84	>	* <li>If you override {@link #setUp} or {@link #tearDown}, make sure
85	>	* to invoke {@code super.setUp} and {@code super.tearDown} within
86		* them. These methods are used to clear and check for thread
87	<	* assertion failures.</li>
87	>	* assertion failures.
88		*
89	<	* <li>All delays and timeouts must use one of the constants <tt>
90	<	* SHORT_DELAY_MS</tt>, <tt> SMALL_DELAY_MS</tt>, <tt> MEDIUM_DELAY_MS</tt>,
91	<	* <tt> LONG_DELAY_MS</tt>. The idea here is that a SHORT is always
89	>	* <li>All delays and timeouts must use one of the constants {@code
90	>	* SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS},
91	>	* {@code LONG_DELAY_MS}. The idea here is that a SHORT is always
92		* discriminable from zero time, and always allows enough time for the
93		* small amounts of computation (creating a thread, calling a few
94		* methods, etc) needed to reach a timeout point. Similarly, a SMALL
95		* is always discriminable as larger than SHORT and smaller than
96		* MEDIUM.  And so on. These constants are set to conservative values,
97		* but even so, if there is ever any doubt, they can all be increased
98	<	* in one spot to rerun tests on slower platforms.</li>
98	>	* in one spot to rerun tests on slower platforms.
99		*
100	<	* <li> All threads generated must be joined inside each test case
101	<	* method (or <tt>fail</tt> to do so) before returning from the
102	<	* method. The <tt> joinPool</tt> method can be used to do this when
103	<	* using Executors.</li>
100	>	* <li>All threads generated must be joined inside each test case
101	>	* method (or {@code fail} to do so) before returning from the
102	>	* method. The {@code joinPool} method can be used to do this when
103	>	* using Executors.
104		*
105		* </ol>
106		*
107	<	* <p> <b>Other notes</b>
107	>	* <p><b>Other notes</b>
108		* <ul>
109		*
110	<	* <li> Usually, there is one testcase method per JSR166 method
110	>	* <li>Usually, there is one testcase method per JSR166 method
111		* covering "normal" operation, and then as many exception-testing
112		* methods as there are exceptions the method can throw. Sometimes
113		* there are multiple tests per JSR166 method when the different
114		* "normal" behaviors differ significantly. And sometimes testcases
115		* cover multiple methods when they cannot be tested in
116	<	* isolation.</li>
116	>	* isolation.
117		*
118	<	* <li> The documentation style for testcases is to provide as javadoc
118	>	* <li>The documentation style for testcases is to provide as javadoc
119		* a simple sentence or two describing the property that the testcase
120		* method purports to test. The javadocs do not say anything about how
121	<	* the property is tested. To find out, read the code.</li>
121	>	* the property is tested. To find out, read the code.
122		*
123	<	* <li> These tests are "conformance tests", and do not attempt to
123	>	* <li>These tests are "conformance tests", and do not attempt to
124		* test throughput, latency, scalability or other performance factors
125		* (see the separate "jtreg" tests for a set intended to check these
126		* for the most central aspects of functionality.) So, most tests use
127		* the smallest sensible numbers of threads, collection sizes, etc
128	<	* needed to check basic conformance.</li>
128	>	* needed to check basic conformance.
129		*
130		* <li>The test classes currently do not declare inclusion in
131		* any particular package to simplify things for people integrating
132	<	* them in TCK test suites.</li>
132	>	* them in TCK test suites.
133		*
134	<	* <li> As a convenience, the <tt>main</tt> of this class (JSR166TestCase)
135	<	* runs all JSR166 unit tests.</li>
134	>	* <li>As a convenience, the {@code main} of this class (JSR166TestCase)
135	>	* runs all JSR166 unit tests.
136		*
137		* </ul>
138		*/
139		public class JSR166TestCase extends TestCase {
140	+	private static final boolean useSecurityManager =
141	+	Boolean.getBoolean("jsr166.useSecurityManager");
142	+
143	+	protected static final boolean expensiveTests =
144	+	Boolean.getBoolean("jsr166.expensiveTests");
145	+
146	+	/**
147	+	* If true, also run tests that are not part of the official tck
148	+	* because they test unspecified implementation details.
149	+	*/
150	+	protected static final boolean testImplementationDetails =
151	+	Boolean.getBoolean("jsr166.testImplementationDetails");
152	+
153	+	/**
154	+	* If true, report on stdout all "slow" tests, that is, ones that
155	+	* take more than profileThreshold milliseconds to execute.
156	+	*/
157	+	private static final boolean profileTests =
158	+	Boolean.getBoolean("jsr166.profileTests");
159	+
160	+	/**
161	+	* The number of milliseconds that tests are permitted for
162	+	* execution without being reported, when profileTests is set.
163	+	*/
164	+	private static final long profileThreshold =
165	+	Long.getLong("jsr166.profileThreshold", 100);
166	+
167	+	/**
168	+	* The number of repetitions per test (for tickling rare bugs).
169	+	*/
170	+	private static final int runsPerTest =
171	+	Integer.getInteger("jsr166.runsPerTest", 1);
172	+
173	+	/**
174	+	* The number of repetitions of the test suite (for finding leaks?).
175	+	*/
176	+	private static final int suiteRuns =
177	+	Integer.getInteger("jsr166.suiteRuns", 1);
178	+
179	+	public JSR166TestCase() { super(); }
180	+	public JSR166TestCase(String name) { super(name); }
181	+
182	+	/**
183	+	* A filter for tests to run, matching strings of the form
184	+	* methodName(className), e.g. "testInvokeAll5(ForkJoinPoolTest)"
185	+	* Usefully combined with jsr166.runsPerTest.
186	+	*/
187	+	private static final Pattern methodFilter = methodFilter();
188	+
189	+	private static Pattern methodFilter() {
190	+	String regex = System.getProperty("jsr166.methodFilter");
191	+	return (regex == null) ? null : Pattern.compile(regex);
192	+	}
193	+
194	+	// Instrumentation to debug very rare, but very annoying hung test runs.
195	+	static volatile TestCase currentTestCase;
196	+	static volatile int currentRun = 0;
197	+	static {
198	+	Runnable checkForWedgedTest = new Runnable() { public void run() {
199	+	// avoid spurious reports with enormous runsPerTest
200	+	final int timeoutMinutes = Math.max(runsPerTest / 10, 1);
201	+	for (TestCase lastTestCase = currentTestCase;;) {
202	+	try { MINUTES.sleep(timeoutMinutes); }
203	+	catch (InterruptedException unexpected) { break; }
204	+	if (lastTestCase == currentTestCase) {
205	+	System.err.printf(
206	+	"Looks like we're stuck running test: %s (%d/%d)%n",
207	+	lastTestCase, currentRun, runsPerTest);
208	+	System.err.println("availableProcessors=" +
209	+	Runtime.getRuntime().availableProcessors());
210	+	System.err.printf("cpu model = %s%n", cpuModel());
211	+	dumpTestThreads();
212	+	// one stack dump is probably enough; more would be spam
213	+	break;
214	+	}
215	+	lastTestCase = currentTestCase;
216	+	}}};
217	+	Thread thread = new Thread(checkForWedgedTest, "checkForWedgedTest");
218	+	thread.setDaemon(true);
219	+	thread.start();
220	+	}
221	+
222	+	public static String cpuModel() {
223	+	try {
224	+	Matcher matcher = Pattern.compile("model name\\s*: (.*)")
225	+	.matcher(new String(
226	+	Files.readAllBytes(Paths.get("/proc/cpuinfo")), "UTF-8"));
227	+	matcher.find();
228	+	return matcher.group(1);
229	+	} catch (Exception ex) { return null; }
230	+	}
231	+
232	+	public void runBare() throws Throwable {
233	+	currentTestCase = this;
234	+	if (methodFilter == null
235	+	|| methodFilter.matcher(toString()).find())
236	+	super.runBare();
237	+	}
238	+
239	+	protected void runTest() throws Throwable {
240	+	for (int i = 0; i < runsPerTest; i++) {
241	+	currentRun = i;
242	+	if (profileTests)
243	+	runTestProfiled();
244	+	else
245	+	super.runTest();
246	+	}
247	+	}
248	+
249	+	protected void runTestProfiled() throws Throwable {
250	+	for (int i = 0; i < 2; i++) {
251	+	long startTime = System.nanoTime();
252	+	super.runTest();
253	+	long elapsedMillis = millisElapsedSince(startTime);
254	+	if (elapsedMillis < profileThreshold)
255	+	break;
256	+	// Never report first run of any test; treat it as a
257	+	// warmup run, notably to trigger all needed classloading,
258	+	if (i > 0)
259	+	System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
260	+	}
261	+	}
262	+
263		/**
264	<	* Runs all JSR166 unit tests using junit.textui.TestRunner
264	>	* Runs all JSR166 unit tests using junit.textui.TestRunner.
265		*/
266		public static void main(String[] args) {
267	<	int iters = 1;
268	<	if (args.length > 0)
269	<	iters = Integer.parseInt(args[0]);
270	<	Test s = suite();
271	<	for (int i = 0; i < iters; ++i) {
272	<	junit.textui.TestRunner.run(s);
267	>	main(suite(), args);
268	>	}
269	>
270	>	/**
271	>	* Runs all unit tests in the given test suite.
272	>	* Actual behavior influenced by jsr166.* system properties.
273	>	*/
274	>	static void main(Test suite, String[] args) {
275	>	if (useSecurityManager) {
276	>	System.err.println("Setting a permissive security manager");
277	>	Policy.setPolicy(permissivePolicy());
278	>	System.setSecurityManager(new SecurityManager());
279	>	}
280	>	for (int i = 0; i < suiteRuns; i++) {
281	>	TestResult result = junit.textui.TestRunner.run(suite);
282	>	if (!result.wasSuccessful())
283	>	System.exit(1);
284		System.gc();
285		System.runFinalization();
286		}
287	<	System.exit(0);
287	>	}
288	>
289	>	public static TestSuite newTestSuite(Object... suiteOrClasses) {
290	>	TestSuite suite = new TestSuite();
291	>	for (Object suiteOrClass : suiteOrClasses) {
292	>	if (suiteOrClass instanceof TestSuite)
293	>	suite.addTest((TestSuite) suiteOrClass);
294	>	else if (suiteOrClass instanceof Class)
295	>	suite.addTest(new TestSuite((Class<?>) suiteOrClass));
296	>	else
297	>	throw new ClassCastException("not a test suite or class");
298	>	}
299	>	return suite;
300	>	}
301	>
302	>	public static void addNamedTestClasses(TestSuite suite,
303	>	String... testClassNames) {
304	>	for (String testClassName : testClassNames) {
305	>	try {
306	>	Class<?> testClass = Class.forName(testClassName);
307	>	Method m = testClass.getDeclaredMethod("suite",
308	>	new Class<?>[0]);
309	>	suite.addTest(newTestSuite((Test)m.invoke(null)));
310	>	} catch (Exception e) {
311	>	throw new Error("Missing test class", e);
312	>	}
313	>	}
314	>	}
315	>
316	>	public static final double JAVA_CLASS_VERSION;
317	>	public static final String JAVA_SPECIFICATION_VERSION;
318	>	static {
319	>	try {
320	>	JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
321	>	new java.security.PrivilegedAction<Double>() {
322	>	public Double run() {
323	>	return Double.valueOf(System.getProperty("java.class.version"));}});
324	>	JAVA_SPECIFICATION_VERSION = java.security.AccessController.doPrivileged(
325	>	new java.security.PrivilegedAction<String>() {
326	>	public String run() {
327	>	return System.getProperty("java.specification.version");}});
328	>	} catch (Throwable t) {
329	>	throw new Error(t);
330	>	}
331	>	}
332	>
333	>	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
334	>	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
335	>	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
336	>	public static boolean atLeastJava9() {
337	>	return JAVA_CLASS_VERSION >= 53.0
338	>	// As of 2015-09, java9 still uses 52.0 class file version
339	>	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?(9|[0-9][0-9])$");
340	>	}
341	>	public static boolean atLeastJava10() {
342	>	return JAVA_CLASS_VERSION >= 54.0
343	>	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?[0-9][0-9]$");
344		}
345
346		/**
347	<	* Collects all JSR166 unit tests as one suite
347	>	* Collects all JSR166 unit tests as one suite.
348		*/
349		public static Test suite() {
350	<	TestSuite suite = new TestSuite("JSR166 Unit Tests");
351	<
352	<	suite.addTest(new TestSuite(ForkJoinPoolTest.class));
353	<	suite.addTest(new TestSuite(ForkJoinTaskTest.class));
354	<	suite.addTest(new TestSuite(RecursiveActionTest.class));
355	<	suite.addTest(new TestSuite(RecursiveTaskTest.class));
356	<	suite.addTest(new TestSuite(LinkedTransferQueueTest.class));
357	<	suite.addTest(new TestSuite(PhaserTest.class));
358	<	suite.addTest(new TestSuite(ThreadLocalRandomTest.class));
359	<	suite.addTest(new TestSuite(AbstractExecutorServiceTest.class));
360	<	suite.addTest(new TestSuite(AbstractQueueTest.class));
361	<	suite.addTest(new TestSuite(AbstractQueuedSynchronizerTest.class));
362	<	suite.addTest(new TestSuite(AbstractQueuedLongSynchronizerTest.class));
363	<	suite.addTest(new TestSuite(ArrayBlockingQueueTest.class));
364	<	suite.addTest(new TestSuite(ArrayDequeTest.class));
365	<	suite.addTest(new TestSuite(AtomicBooleanTest.class));
366	<	suite.addTest(new TestSuite(AtomicIntegerArrayTest.class));
367	<	suite.addTest(new TestSuite(AtomicIntegerFieldUpdaterTest.class));
368	<	suite.addTest(new TestSuite(AtomicIntegerTest.class));
369	<	suite.addTest(new TestSuite(AtomicLongArrayTest.class));
370	<	suite.addTest(new TestSuite(AtomicLongFieldUpdaterTest.class));
371	<	suite.addTest(new TestSuite(AtomicLongTest.class));
372	<	suite.addTest(new TestSuite(AtomicMarkableReferenceTest.class));
373	<	suite.addTest(new TestSuite(AtomicReferenceArrayTest.class));
374	<	suite.addTest(new TestSuite(AtomicReferenceFieldUpdaterTest.class));
375	<	suite.addTest(new TestSuite(AtomicReferenceTest.class));
376	<	suite.addTest(new TestSuite(AtomicStampedReferenceTest.class));
377	<	suite.addTest(new TestSuite(ConcurrentHashMapTest.class));
378	<	suite.addTest(new TestSuite(ConcurrentLinkedQueueTest.class));
379	<	suite.addTest(new TestSuite(ConcurrentSkipListMapTest.class));
380	<	suite.addTest(new TestSuite(ConcurrentSkipListSubMapTest.class));
381	<	suite.addTest(new TestSuite(ConcurrentSkipListSetTest.class));
382	<	suite.addTest(new TestSuite(ConcurrentSkipListSubSetTest.class));
383	<	suite.addTest(new TestSuite(CopyOnWriteArrayListTest.class));
384	<	suite.addTest(new TestSuite(CopyOnWriteArraySetTest.class));
385	<	suite.addTest(new TestSuite(CountDownLatchTest.class));
386	<	suite.addTest(new TestSuite(CyclicBarrierTest.class));
387	<	suite.addTest(new TestSuite(DelayQueueTest.class));
388	<	suite.addTest(new TestSuite(EntryTest.class));
389	<	suite.addTest(new TestSuite(ExchangerTest.class));
390	<	suite.addTest(new TestSuite(ExecutorsTest.class));
391	<	suite.addTest(new TestSuite(ExecutorCompletionServiceTest.class));
392	<	suite.addTest(new TestSuite(FutureTaskTest.class));
393	<	suite.addTest(new TestSuite(LinkedBlockingDequeTest.class));
394	<	suite.addTest(new TestSuite(LinkedBlockingQueueTest.class));
395	<	suite.addTest(new TestSuite(LinkedListTest.class));
396	<	suite.addTest(new TestSuite(LockSupportTest.class));
397	<	suite.addTest(new TestSuite(PriorityBlockingQueueTest.class));
398	<	suite.addTest(new TestSuite(PriorityQueueTest.class));
399	<	suite.addTest(new TestSuite(ReentrantLockTest.class));
400	<	suite.addTest(new TestSuite(ReentrantReadWriteLockTest.class));
401	<	suite.addTest(new TestSuite(ScheduledExecutorTest.class));
402	<	suite.addTest(new TestSuite(ScheduledExecutorSubclassTest.class));
403	<	suite.addTest(new TestSuite(SemaphoreTest.class));
404	<	suite.addTest(new TestSuite(SynchronousQueueTest.class));
405	<	suite.addTest(new TestSuite(SystemTest.class));
406	<	suite.addTest(new TestSuite(ThreadLocalTest.class));
407	<	suite.addTest(new TestSuite(ThreadPoolExecutorTest.class));
408	<	suite.addTest(new TestSuite(ThreadPoolExecutorSubclassTest.class));
409	<	suite.addTest(new TestSuite(ThreadTest.class));
410	<	suite.addTest(new TestSuite(TimeUnitTest.class));
411	<	suite.addTest(new TestSuite(TreeMapTest.class));
412	<	suite.addTest(new TestSuite(TreeSetTest.class));
413	<	suite.addTest(new TestSuite(TreeSubMapTest.class));
414	<	suite.addTest(new TestSuite(TreeSubSetTest.class));
350	>	// Java7+ test classes
351	>	TestSuite suite = newTestSuite(
352	>	ForkJoinPoolTest.suite(),
353	>	ForkJoinTaskTest.suite(),
354	>	RecursiveActionTest.suite(),
355	>	RecursiveTaskTest.suite(),
356	>	LinkedTransferQueueTest.suite(),
357	>	PhaserTest.suite(),
358	>	ThreadLocalRandomTest.suite(),
359	>	AbstractExecutorServiceTest.suite(),
360	>	AbstractQueueTest.suite(),
361	>	AbstractQueuedSynchronizerTest.suite(),
362	>	AbstractQueuedLongSynchronizerTest.suite(),
363	>	ArrayBlockingQueueTest.suite(),
364	>	ArrayDequeTest.suite(),
365	>	AtomicBooleanTest.suite(),
366	>	AtomicIntegerArrayTest.suite(),
367	>	AtomicIntegerFieldUpdaterTest.suite(),
368	>	AtomicIntegerTest.suite(),
369	>	AtomicLongArrayTest.suite(),
370	>	AtomicLongFieldUpdaterTest.suite(),
371	>	AtomicLongTest.suite(),
372	>	AtomicMarkableReferenceTest.suite(),
373	>	AtomicReferenceArrayTest.suite(),
374	>	AtomicReferenceFieldUpdaterTest.suite(),
375	>	AtomicReferenceTest.suite(),
376	>	AtomicStampedReferenceTest.suite(),
377	>	ConcurrentHashMapTest.suite(),
378	>	ConcurrentLinkedDequeTest.suite(),
379	>	ConcurrentLinkedQueueTest.suite(),
380	>	ConcurrentSkipListMapTest.suite(),
381	>	ConcurrentSkipListSubMapTest.suite(),
382	>	ConcurrentSkipListSetTest.suite(),
383	>	ConcurrentSkipListSubSetTest.suite(),
384	>	CopyOnWriteArrayListTest.suite(),
385	>	CopyOnWriteArraySetTest.suite(),
386	>	CountDownLatchTest.suite(),
387	>	CyclicBarrierTest.suite(),
388	>	DelayQueueTest.suite(),
389	>	EntryTest.suite(),
390	>	ExchangerTest.suite(),
391	>	ExecutorsTest.suite(),
392	>	ExecutorCompletionServiceTest.suite(),
393	>	FutureTaskTest.suite(),
394	>	LinkedBlockingDequeTest.suite(),
395	>	LinkedBlockingQueueTest.suite(),
396	>	LinkedListTest.suite(),
397	>	LockSupportTest.suite(),
398	>	PriorityBlockingQueueTest.suite(),
399	>	PriorityQueueTest.suite(),
400	>	ReentrantLockTest.suite(),
401	>	ReentrantReadWriteLockTest.suite(),
402	>	ScheduledExecutorTest.suite(),
403	>	ScheduledExecutorSubclassTest.suite(),
404	>	SemaphoreTest.suite(),
405	>	SynchronousQueueTest.suite(),
406	>	SystemTest.suite(),
407	>	ThreadLocalTest.suite(),
408	>	ThreadPoolExecutorTest.suite(),
409	>	ThreadPoolExecutorSubclassTest.suite(),
410	>	ThreadTest.suite(),
411	>	TimeUnitTest.suite(),
412	>	TreeMapTest.suite(),
413	>	TreeSetTest.suite(),
414	>	TreeSubMapTest.suite(),
415	>	TreeSubSetTest.suite());
416	>
417	>	// Java8+ test classes
418	>	if (atLeastJava8()) {
419	>	String[] java8TestClassNames = {
420	>	"Atomic8Test",
421	>	"CompletableFutureTest",
422	>	"ConcurrentHashMap8Test",
423	>	"CountedCompleterTest",
424	>	"DoubleAccumulatorTest",
425	>	"DoubleAdderTest",
426	>	"ForkJoinPool8Test",
427	>	"ForkJoinTask8Test",
428	>	"LongAccumulatorTest",
429	>	"LongAdderTest",
430	>	"SplittableRandomTest",
431	>	"StampedLockTest",
432	>	"SubmissionPublisherTest",
433	>	"ThreadLocalRandom8Test",
434	>	};
435	>	addNamedTestClasses(suite, java8TestClassNames);
436	>	}
437	>
438	>	// Java9+ test classes
439	>	if (atLeastJava9()) {
440	>	String[] java9TestClassNames = {
441	>	// Currently empty, but expecting varhandle tests
442	>	};
443	>	addNamedTestClasses(suite, java9TestClassNames);
444	>	}
445
446		return suite;
447		}
448
449	+	/** Returns list of junit-style test method names in given class. */
450	+	public static ArrayList<String> testMethodNames(Class<?> testClass) {
451	+	Method[] methods = testClass.getDeclaredMethods();
452	+	ArrayList<String> names = new ArrayList<String>(methods.length);
453	+	for (Method method : methods) {
454	+	if (method.getName().startsWith("test")
455	+	&& Modifier.isPublic(method.getModifiers())
456	+	// method.getParameterCount() requires jdk8+
457	+	&& method.getParameterTypes().length == 0) {
458	+	names.add(method.getName());
459	+	}
460	+	}
461	+	return names;
462	+	}
463	+
464	+	/**
465	+	* Returns junit-style testSuite for the given test class, but
466	+	* parameterized by passing extra data to each test.
467	+	*/
468	+	public static <ExtraData> Test parameterizedTestSuite
469	+	(Class<? extends JSR166TestCase> testClass,
470	+	Class<ExtraData> dataClass,
471	+	ExtraData data) {
472	+	try {
473	+	TestSuite suite = new TestSuite();
474	+	Constructor c =
475	+	testClass.getDeclaredConstructor(dataClass, String.class);
476	+	for (String methodName : testMethodNames(testClass))
477	+	suite.addTest((Test) c.newInstance(data, methodName));
478	+	return suite;
479	+	} catch (Exception e) {
480	+	throw new Error(e);
481	+	}
482	+	}
483	+
484	+	/**
485	+	* Returns junit-style testSuite for the jdk8 extension of the
486	+	* given test class, but parameterized by passing extra data to
487	+	* each test.  Uses reflection to allow compilation in jdk7.
488	+	*/
489	+	public static <ExtraData> Test jdk8ParameterizedTestSuite
490	+	(Class<? extends JSR166TestCase> testClass,
491	+	Class<ExtraData> dataClass,
492	+	ExtraData data) {
493	+	if (atLeastJava8()) {
494	+	String name = testClass.getName();
495	+	String name8 = name.replaceAll("Test$", "8Test");
496	+	if (name.equals(name8)) throw new Error(name);
497	+	try {
498	+	return (Test)
499	+	Class.forName(name8)
500	+	.getMethod("testSuite", new Class[] { dataClass })
501	+	.invoke(null, data);
502	+	} catch (Exception e) {
503	+	throw new Error(e);
504	+	}
505	+	} else {
506	+	return new TestSuite();
507	+	}
508	+	}
509	+
510	+	// Delays for timing-dependent tests, in milliseconds.
511
512		public static long SHORT_DELAY_MS;
513		public static long SMALL_DELAY_MS;
514		public static long MEDIUM_DELAY_MS;
515		public static long LONG_DELAY_MS;
516
185	–
517		/**
518		* Returns the shortest timed delay. This could
519		* be reimplemented to use for example a Property.
#	Line 191 | Line 522 | public class JSR166TestCase extends Test
522		return 50;
523		}
524
194	–
525		/**
526		* Sets delays as multiples of SHORT_DELAY.
527		*/
528		protected void setDelays() {
529		SHORT_DELAY_MS = getShortDelay();
530	<	SMALL_DELAY_MS = SHORT_DELAY_MS * 5;
530	>	SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
531		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
532	<	LONG_DELAY_MS = SHORT_DELAY_MS * 50;
532	>	LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
533		}
534
535		/**
536	<	* Flag set true if any threadAssert methods fail
536	>	* Returns a timeout in milliseconds to be used in tests that
537	>	* verify that operations block or time out.
538		*/
539	<	volatile boolean threadFailed;
539	>	long timeoutMillis() {
540	>	return SHORT_DELAY_MS / 4;
541	>	}
542
543		/**
544	<	* Initializes test to indicate that no thread assertions have failed
544	>	* Returns a new Date instance representing a time at least
545	>	* delayMillis milliseconds in the future.
546		*/
547	+	Date delayedDate(long delayMillis) {
548	+	// Add 1 because currentTimeMillis is known to round into the past.
549	+	return new Date(System.currentTimeMillis() + delayMillis + 1);
550	+	}
551	+
552	+	/**
553	+	* The first exception encountered if any threadAssertXXX method fails.
554	+	*/
555	+	private final AtomicReference<Throwable> threadFailure
556	+	= new AtomicReference<Throwable>(null);
557	+
558	+	/**
559	+	* Records an exception so that it can be rethrown later in the test
560	+	* harness thread, triggering a test case failure.  Only the first
561	+	* failure is recorded; subsequent calls to this method from within
562	+	* the same test have no effect.
563	+	*/
564	+	public void threadRecordFailure(Throwable t) {
565	+	System.err.println(t);
566	+	dumpTestThreads();
567	+	threadFailure.compareAndSet(null, t);
568	+	}
569	+
570		public void setUp() {
571		setDelays();
572	<	threadFailed = false;
572	>	}
573	>
574	>	void tearDownFail(String format, Object... args) {
575	>	String msg = toString() + ": " + String.format(format, args);
576	>	System.err.println(msg);
577	>	dumpTestThreads();
578	>	throw new AssertionFailedError(msg);
579	>	}
580	>
581	>	/**
582	>	* Extra checks that get done for all test cases.
583	>	*
584	>	* Triggers test case failure if any thread assertions have failed,
585	>	* by rethrowing, in the test harness thread, any exception recorded
586	>	* earlier by threadRecordFailure.
587	>	*
588	>	* Triggers test case failure if interrupt status is set in the main thread.
589	>	*/
590	>	public void tearDown() throws Exception {
591	>	Throwable t = threadFailure.getAndSet(null);
592	>	if (t != null) {
593	>	if (t instanceof Error)
594	>	throw (Error) t;
595	>	else if (t instanceof RuntimeException)
596	>	throw (RuntimeException) t;
597	>	else if (t instanceof Exception)
598	>	throw (Exception) t;
599	>	else {
600	>	AssertionFailedError afe =
601	>	new AssertionFailedError(t.toString());
602	>	afe.initCause(t);
603	>	throw afe;
604	>	}
605	>	}
606	>
607	>	if (Thread.interrupted())
608	>	tearDownFail("interrupt status set in main thread");
609	>
610	>	checkForkJoinPoolThreadLeaks();
611		}
612
613		/**
614	<	* Triggers test case failure if any thread assertions have failed
614	>	* Finds missing PoolCleaners
615		*/
616	<	public void tearDown() {
617	<	assertFalse(threadFailed);
616	>	void checkForkJoinPoolThreadLeaks() throws InterruptedException {
617	>	Thread[] survivors = new Thread[7];
618	>	int count = Thread.enumerate(survivors);
619	>	for (int i = 0; i < count; i++) {
620	>	Thread thread = survivors[i];
621	>	String name = thread.getName();
622	>	if (name.startsWith("ForkJoinPool-")) {
623	>	// give thread some time to terminate
624	>	thread.join(LONG_DELAY_MS);
625	>	if (thread.isAlive())
626	>	tearDownFail("Found leaked ForkJoinPool thread thread=%s",
627	>	thread);
628	>	}
629	>	}
630	>
631	>	if (!ForkJoinPool.commonPool()
632	>	.awaitQuiescence(LONG_DELAY_MS, MILLISECONDS))
633	>	tearDownFail("ForkJoin common pool thread stuck");
634		}
635
636		/**
637	<	* Fail, also setting status to indicate current testcase should fail
637	>	* Just like fail(reason), but additionally recording (using
638	>	* threadRecordFailure) any AssertionFailedError thrown, so that
639	>	* the current testcase will fail.
640		*/
641		public void threadFail(String reason) {
642	<	threadFailed = true;
643	<	fail(reason);
642	>	try {
643	>	fail(reason);
644	>	} catch (AssertionFailedError t) {
645	>	threadRecordFailure(t);
646	>	throw t;
647	>	}
648		}
649
650		/**
651	<	* If expression not true, set status to indicate current testcase
652	<	* should fail
651	>	* Just like assertTrue(b), but additionally recording (using
652	>	* threadRecordFailure) any AssertionFailedError thrown, so that
653	>	* the current testcase will fail.
654		*/
655		public void threadAssertTrue(boolean b) {
656	<	if (!b) {
239	<	threadFailed = true;
656	>	try {
657		assertTrue(b);
658	+	} catch (AssertionFailedError t) {
659	+	threadRecordFailure(t);
660	+	throw t;
661		}
662		}
663
664		/**
665	<	* If expression not false, set status to indicate current testcase
666	<	* should fail
665	>	* Just like assertFalse(b), but additionally recording (using
666	>	* threadRecordFailure) any AssertionFailedError thrown, so that
667	>	* the current testcase will fail.
668		*/
669		public void threadAssertFalse(boolean b) {
670	<	if (b) {
250	<	threadFailed = true;
670	>	try {
671		assertFalse(b);
672	+	} catch (AssertionFailedError t) {
673	+	threadRecordFailure(t);
674	+	throw t;
675		}
676		}
677
678		/**
679	<	* If argument not null, set status to indicate current testcase
680	<	* should fail
679	>	* Just like assertNull(x), but additionally recording (using
680	>	* threadRecordFailure) any AssertionFailedError thrown, so that
681	>	* the current testcase will fail.
682		*/
683		public void threadAssertNull(Object x) {
684	<	if (x != null) {
261	<	threadFailed = true;
684	>	try {
685		assertNull(x);
686	+	} catch (AssertionFailedError t) {
687	+	threadRecordFailure(t);
688	+	throw t;
689		}
690		}
691
692		/**
693	<	* If arguments not equal, set status to indicate current testcase
694	<	* should fail
693	>	* Just like assertEquals(x, y), but additionally recording (using
694	>	* threadRecordFailure) any AssertionFailedError thrown, so that
695	>	* the current testcase will fail.
696		*/
697		public void threadAssertEquals(long x, long y) {
698	<	if (x != y) {
272	<	threadFailed = true;
698	>	try {
699		assertEquals(x, y);
700	+	} catch (AssertionFailedError t) {
701	+	threadRecordFailure(t);
702	+	throw t;
703		}
704		}
705
706		/**
707	<	* If arguments not equal, set status to indicate current testcase
708	<	* should fail
707	>	* Just like assertEquals(x, y), but additionally recording (using
708	>	* threadRecordFailure) any AssertionFailedError thrown, so that
709	>	* the current testcase will fail.
710		*/
711		public void threadAssertEquals(Object x, Object y) {
712	<	if (x != y && (x == null || !x.equals(y))) {
283	<	threadFailed = true;
712	>	try {
713		assertEquals(x, y);
714	+	} catch (AssertionFailedError fail) {
715	+	threadRecordFailure(fail);
716	+	throw fail;
717	+	} catch (Throwable fail) {
718	+	threadUnexpectedException(fail);
719	+	}
720	+	}
721	+
722	+	/**
723	+	* Just like assertSame(x, y), but additionally recording (using
724	+	* threadRecordFailure) any AssertionFailedError thrown, so that
725	+	* the current testcase will fail.
726	+	*/
727	+	public void threadAssertSame(Object x, Object y) {
728	+	try {
729	+	assertSame(x, y);
730	+	} catch (AssertionFailedError fail) {
731	+	threadRecordFailure(fail);
732	+	throw fail;
733		}
734		}
735
736		/**
737	<	* threadFail with message "should throw exception"
737	>	* Calls threadFail with message "should throw exception".
738		*/
739		public void threadShouldThrow() {
740	<	threadFailed = true;
293	<	fail("should throw exception");
740	>	threadFail("should throw exception");
741		}
742
743		/**
744	<	* threadFail with message "should throw" + exceptionName
744	>	* Calls threadFail with message "should throw" + exceptionName.
745		*/
746		public void threadShouldThrow(String exceptionName) {
747	<	threadFailed = true;
748	<	fail("should throw " + exceptionName);
747	>	threadFail("should throw " + exceptionName);
748	>	}
749	>
750	>	/**
751	>	* Records the given exception using {@link #threadRecordFailure},
752	>	* then rethrows the exception, wrapping it in an
753	>	* AssertionFailedError if necessary.
754	>	*/
755	>	public void threadUnexpectedException(Throwable t) {
756	>	threadRecordFailure(t);
757	>	t.printStackTrace();
758	>	if (t instanceof RuntimeException)
759	>	throw (RuntimeException) t;
760	>	else if (t instanceof Error)
761	>	throw (Error) t;
762	>	else {
763	>	AssertionFailedError afe =
764	>	new AssertionFailedError("unexpected exception: " + t);
765	>	afe.initCause(t);
766	>	throw afe;
767	>	}
768		}
769
770		/**
771	<	* threadFail with message "Unexpected exception"
771	>	* Delays, via Thread.sleep, for the given millisecond delay, but
772	>	* if the sleep is shorter than specified, may re-sleep or yield
773	>	* until time elapses.  Ensures that the given time, as measured
774	>	* by System.nanoTime(), has elapsed.
775		*/
776	<	public void threadUnexpectedException() {
777	<	threadFailed = true;
778	<	fail("Unexpected exception");
776	>	static void delay(long millis) throws InterruptedException {
777	>	long nanos = millis * (1000 * 1000);
778	>	final long wakeupTime = System.nanoTime() + nanos;
779	>	do {
780	>	if (millis > 0L)
781	>	Thread.sleep(millis);
782	>	else // too short to sleep
783	>	Thread.yield();
784	>	nanos = wakeupTime - System.nanoTime();
785	>	millis = nanos / (1000 * 1000);
786	>	} while (nanos >= 0L);
787		}
788
789		/**
790	<	* threadFail with message "Unexpected exception", with argument
790	>	* Allows use of try-with-resources with per-test thread pools.
791		*/
792	<	public void threadUnexpectedException(Throwable ex) {
793	<	threadFailed = true;
794	<	ex.printStackTrace();
795	<	fail("Unexpected exception: " + ex);
792	>	class PoolCleaner implements AutoCloseable {
793	>	private final ExecutorService pool;
794	>	public PoolCleaner(ExecutorService pool) { this.pool = pool; }
795	>	public void close() { joinPool(pool); }
796		}
797
798		/**
799	<	* Wait out termination of a thread pool or fail doing so
799	>	* An extension of PoolCleaner that has an action to release the pool.
800		*/
801	<	public void joinPool(ExecutorService exec) {
801	>	class PoolCleanerWithReleaser extends PoolCleaner {
802	>	private final Runnable releaser;
803	>	public PoolCleanerWithReleaser(ExecutorService pool, Runnable releaser) {
804	>	super(pool);
805	>	this.releaser = releaser;
806	>	}
807	>	public void close() {
808	>	try {
809	>	releaser.run();
810	>	} finally {
811	>	super.close();
812	>	}
813	>	}
814	>	}
815	>
816	>	PoolCleaner cleaner(ExecutorService pool) {
817	>	return new PoolCleaner(pool);
818	>	}
819	>
820	>	PoolCleaner cleaner(ExecutorService pool, Runnable releaser) {
821	>	return new PoolCleanerWithReleaser(pool, releaser);
822	>	}
823	>
824	>	PoolCleaner cleaner(ExecutorService pool, CountDownLatch latch) {
825	>	return new PoolCleanerWithReleaser(pool, releaser(latch));
826	>	}
827	>
828	>	Runnable releaser(final CountDownLatch latch) {
829	>	return new Runnable() { public void run() {
830	>	do { latch.countDown(); }
831	>	while (latch.getCount() > 0);
832	>	}};
833	>	}
834	>
835	>	/**
836	>	* Waits out termination of a thread pool or fails doing so.
837	>	*/
838	>	void joinPool(ExecutorService pool) {
839		try {
840	<	exec.shutdown();
841	<	assertTrue(exec.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
840	>	pool.shutdown();
841	>	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)) {
842	>	try {
843	>	threadFail("ExecutorService " + pool +
844	>	" did not terminate in a timely manner");
845	>	} finally {
846	>	// last resort, for the benefit of subsequent tests
847	>	pool.shutdownNow();
848	>	pool.awaitTermination(MEDIUM_DELAY_MS, MILLISECONDS);
849	>	}
850	>	}
851		} catch (SecurityException ok) {
852		// Allowed in case test doesn't have privs
853	<	} catch (InterruptedException ie) {
854	<	fail("Unexpected exception");
853	>	} catch (InterruptedException fail) {
854	>	threadFail("Unexpected InterruptedException");
855		}
856		}
857
858	+	/** Like Runnable, but with the freedom to throw anything */
859	+	interface Action { public void run() throws Throwable; }
860
861		/**
862	<	* fail with message "should throw exception"
862	>	* Runs all the given actions in parallel, failing if any fail.
863	>	* Useful for running multiple variants of tests that are
864	>	* necessarily individually slow because they must block.
865		*/
866	<	public void shouldThrow() {
867	<	fail("Should throw exception");
866	>	void testInParallel(Action ... actions) {
867	>	ExecutorService pool = Executors.newCachedThreadPool();
868	>	try (PoolCleaner cleaner = cleaner(pool)) {
869	>	ArrayList<Future<?>> futures = new ArrayList<>(actions.length);
870	>	for (final Action action : actions)
871	>	futures.add(pool.submit(new CheckedRunnable() {
872	>	public void realRun() throws Throwable { action.run();}}));
873	>	for (Future<?> future : futures)
874	>	try {
875	>	assertNull(future.get(LONG_DELAY_MS, MILLISECONDS));
876	>	} catch (ExecutionException ex) {
877	>	threadUnexpectedException(ex.getCause());
878	>	} catch (Exception ex) {
879	>	threadUnexpectedException(ex);
880	>	}
881	>	}
882		}
883
884		/**
885	<	* fail with message "should throw " + exceptionName
885	>	* A debugging tool to print stack traces of most threads, as jstack does.
886	>	* Uninteresting threads are filtered out.
887		*/
888	<	public void shouldThrow(String exceptionName) {
889	<	fail("Should throw " + exceptionName);
888	>	static void dumpTestThreads() {
889	>	ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
890	>	System.err.println("------ stacktrace dump start ------");
891	>	for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) {
892	>	String name = info.getThreadName();
893	>	if ("Signal Dispatcher".equals(name))
894	>	continue;
895	>	if ("Reference Handler".equals(name)
896	>	&& info.getLockName().startsWith("java.lang.ref.Reference$Lock"))
897	>	continue;
898	>	if ("Finalizer".equals(name)
899	>	&& info.getLockName().startsWith("java.lang.ref.ReferenceQueue$Lock"))
900	>	continue;
901	>	if ("checkForWedgedTest".equals(name))
902	>	continue;
903	>	System.err.print(info);
904	>	}
905	>	System.err.println("------ stacktrace dump end ------");
906	>	}
907	>
908	>	/**
909	>	* Checks that thread does not terminate within the default
910	>	* millisecond delay of {@code timeoutMillis()}.
911	>	*/
912	>	void assertThreadStaysAlive(Thread thread) {
913	>	assertThreadStaysAlive(thread, timeoutMillis());
914	>	}
915	>
916	>	/**
917	>	* Checks that thread does not terminate within the given millisecond delay.
918	>	*/
919	>	void assertThreadStaysAlive(Thread thread, long millis) {
920	>	try {
921	>	// No need to optimize the failing case via Thread.join.
922	>	delay(millis);
923	>	assertTrue(thread.isAlive());
924	>	} catch (InterruptedException fail) {
925	>	threadFail("Unexpected InterruptedException");
926	>	}
927	>	}
928	>
929	>	/**
930	>	* Checks that the threads do not terminate within the default
931	>	* millisecond delay of {@code timeoutMillis()}.
932	>	*/
933	>	void assertThreadsStayAlive(Thread... threads) {
934	>	assertThreadsStayAlive(timeoutMillis(), threads);
935	>	}
936	>
937	>	/**
938	>	* Checks that the threads do not terminate within the given millisecond delay.
939	>	*/
940	>	void assertThreadsStayAlive(long millis, Thread... threads) {
941	>	try {
942	>	// No need to optimize the failing case via Thread.join.
943	>	delay(millis);
944	>	for (Thread thread : threads)
945	>	assertTrue(thread.isAlive());
946	>	} catch (InterruptedException fail) {
947	>	threadFail("Unexpected InterruptedException");
948	>	}
949	>	}
950	>
951	>	/**
952	>	* Checks that future.get times out, with the default timeout of
953	>	* {@code timeoutMillis()}.
954	>	*/
955	>	void assertFutureTimesOut(Future future) {
956	>	assertFutureTimesOut(future, timeoutMillis());
957		}
958
959		/**
960	<	* fail with message "Unexpected exception"
960	>	* Checks that future.get times out, with the given millisecond timeout.
961		*/
962	<	public void unexpectedException() {
963	<	fail("Unexpected exception");
962	>	void assertFutureTimesOut(Future future, long timeoutMillis) {
963	>	long startTime = System.nanoTime();
964	>	try {
965	>	future.get(timeoutMillis, MILLISECONDS);
966	>	shouldThrow();
967	>	} catch (TimeoutException success) {
968	>	} catch (Exception fail) {
969	>	threadUnexpectedException(fail);
970	>	} finally { future.cancel(true); }
971	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
972		}
973
974		/**
975	<	* fail with message "Unexpected exception", with argument
975	>	* Fails with message "should throw exception".
976		*/
977	<	public void unexpectedException(Throwable ex) {
978	<	ex.printStackTrace();
362	<	fail("Unexpected exception: " + ex);
977	>	public void shouldThrow() {
978	>	fail("Should throw exception");
979		}
980
981	+	/**
982	+	* Fails with message "should throw " + exceptionName.
983	+	*/
984	+	public void shouldThrow(String exceptionName) {
985	+	fail("Should throw " + exceptionName);
986	+	}
987
988		/**
989		* The number of elements to place in collections, arrays, etc.
990		*/
991	<	static final int SIZE = 20;
991	>	public static final int SIZE = 20;
992
993		// Some convenient Integer constants
994
995	<	static final Integer zero = new Integer(0);
996	<	static final Integer one = new Integer(1);
997	<	static final Integer two = new Integer(2);
998	<	static final Integer three  = new Integer(3);
999	<	static final Integer four  = new Integer(4);
1000	<	static final Integer five  = new Integer(5);
1001	<	static final Integer six = new Integer(6);
1002	<	static final Integer seven = new Integer(7);
1003	<	static final Integer eight = new Integer(8);
1004	<	static final Integer nine = new Integer(9);
1005	<	static final Integer m1  = new Integer(-1);
1006	<	static final Integer m2  = new Integer(-2);
1007	<	static final Integer m3  = new Integer(-3);
1008	<	static final Integer m4 = new Integer(-4);
1009	<	static final Integer m5 = new Integer(-5);
1010	<	static final Integer m6 = new Integer(-6);
1011	<	static final Integer m10 = new Integer(-10);
995	>	public static final Integer zero  = new Integer(0);
996	>	public static final Integer one   = new Integer(1);
997	>	public static final Integer two   = new Integer(2);
998	>	public static final Integer three = new Integer(3);
999	>	public static final Integer four  = new Integer(4);
1000	>	public static final Integer five  = new Integer(5);
1001	>	public static final Integer six   = new Integer(6);
1002	>	public static final Integer seven = new Integer(7);
1003	>	public static final Integer eight = new Integer(8);
1004	>	public static final Integer nine  = new Integer(9);
1005	>	public static final Integer m1  = new Integer(-1);
1006	>	public static final Integer m2  = new Integer(-2);
1007	>	public static final Integer m3  = new Integer(-3);
1008	>	public static final Integer m4  = new Integer(-4);
1009	>	public static final Integer m5  = new Integer(-5);
1010	>	public static final Integer m6  = new Integer(-6);
1011	>	public static final Integer m10 = new Integer(-10);
1012	>
1013	>	/**
1014	>	* Runs Runnable r with a security policy that permits precisely
1015	>	* the specified permissions.  If there is no current security
1016	>	* manager, the runnable is run twice, both with and without a
1017	>	* security manager.  We require that any security manager permit
1018	>	* getPolicy/setPolicy.
1019	>	*/
1020	>	public void runWithPermissions(Runnable r, Permission... permissions) {
1021	>	SecurityManager sm = System.getSecurityManager();
1022	>	if (sm == null) {
1023	>	r.run();
1024	>	}
1025	>	runWithSecurityManagerWithPermissions(r, permissions);
1026	>	}
1027	>
1028	>	/**
1029	>	* Runs Runnable r with a security policy that permits precisely
1030	>	* the specified permissions.  If there is no current security
1031	>	* manager, a temporary one is set for the duration of the
1032	>	* Runnable.  We require that any security manager permit
1033	>	* getPolicy/setPolicy.
1034	>	*/
1035	>	public void runWithSecurityManagerWithPermissions(Runnable r,
1036	>	Permission... permissions) {
1037	>	SecurityManager sm = System.getSecurityManager();
1038	>	if (sm == null) {
1039	>	Policy savedPolicy = Policy.getPolicy();
1040	>	try {
1041	>	Policy.setPolicy(permissivePolicy());
1042	>	System.setSecurityManager(new SecurityManager());
1043	>	runWithSecurityManagerWithPermissions(r, permissions);
1044	>	} finally {
1045	>	System.setSecurityManager(null);
1046	>	Policy.setPolicy(savedPolicy);
1047	>	}
1048	>	} else {
1049	>	Policy savedPolicy = Policy.getPolicy();
1050	>	AdjustablePolicy policy = new AdjustablePolicy(permissions);
1051	>	Policy.setPolicy(policy);
1052	>
1053	>	try {
1054	>	r.run();
1055	>	} finally {
1056	>	policy.addPermission(new SecurityPermission("setPolicy"));
1057	>	Policy.setPolicy(savedPolicy);
1058	>	}
1059	>	}
1060	>	}
1061
1062	+	/**
1063	+	* Runs a runnable without any permissions.
1064	+	*/
1065	+	public void runWithoutPermissions(Runnable r) {
1066	+	runWithPermissions(r);
1067	+	}
1068
1069		/**
1070		* A security policy where new permissions can be dynamically added
1071		* or all cleared.
1072		*/
1073	<	static class AdjustablePolicy extends java.security.Policy {
1073	>	public static class AdjustablePolicy extends java.security.Policy {
1074		Permissions perms = new Permissions();
1075	<	AdjustablePolicy() { }
1075	>	AdjustablePolicy(Permission... permissions) {
1076	>	for (Permission permission : permissions)
1077	>	perms.add(permission);
1078	>	}
1079		void addPermission(Permission perm) { perms.add(perm); }
1080		void clearPermissions() { perms = new Permissions(); }
1081		public PermissionCollection getPermissions(CodeSource cs) {
#	Line 408 | Line 1088 | public class JSR166TestCase extends Test
1088		return perms.implies(p);
1089		}
1090		public void refresh() {}
1091	+	public String toString() {
1092	+	List<Permission> ps = new ArrayList<Permission>();
1093	+	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
1094	+	ps.add(e.nextElement());
1095	+	return "AdjustablePolicy with permissions " + ps;
1096	+	}
1097	+	}
1098	+
1099	+	/**
1100	+	* Returns a policy containing all the permissions we ever need.
1101	+	*/
1102	+	public static Policy permissivePolicy() {
1103	+	return new AdjustablePolicy
1104	+	// Permissions j.u.c. needs directly
1105	+	(new RuntimePermission("modifyThread"),
1106	+	new RuntimePermission("getClassLoader"),
1107	+	new RuntimePermission("setContextClassLoader"),
1108	+	// Permissions needed to change permissions!
1109	+	new SecurityPermission("getPolicy"),
1110	+	new SecurityPermission("setPolicy"),
1111	+	new RuntimePermission("setSecurityManager"),
1112	+	// Permissions needed by the junit test harness
1113	+	new RuntimePermission("accessDeclaredMembers"),
1114	+	new PropertyPermission("*", "read"),
1115	+	new java.io.FilePermission("<<ALL FILES>>", "read"));
1116		}
1117
1118		/**
1119	<	* Sleep until the timeout has elapsed, or interrupted.
1120	<	* Does <em>NOT</em> throw InterruptedException.
1119	>	* Sleeps until the given time has elapsed.
1120	>	* Throws AssertionFailedError if interrupted.
1121		*/
1122	<	void sleepTillInterrupted(long timeoutMillis) {
1122	>	void sleep(long millis) {
1123		try {
1124	<	Thread.sleep(timeoutMillis);
1125	<	} catch (InterruptedException wakeup) {
1124	>	delay(millis);
1125	>	} catch (InterruptedException fail) {
1126	>	AssertionFailedError afe =
1127	>	new AssertionFailedError("Unexpected InterruptedException");
1128	>	afe.initCause(fail);
1129	>	throw afe;
1130	>	}
1131	>	}
1132	>
1133	>	/**
1134	>	* Spin-waits up to the specified number of milliseconds for the given
1135	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1136	>	*/
1137	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1138	>	long startTime = System.nanoTime();
1139	>	for (;;) {
1140	>	Thread.State s = thread.getState();
1141	>	if (s == Thread.State.BLOCKED ||
1142	>	s == Thread.State.WAITING ||
1143	>	s == Thread.State.TIMED_WAITING)
1144	>	return;
1145	>	else if (s == Thread.State.TERMINATED)
1146	>	fail("Unexpected thread termination");
1147	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
1148	>	threadAssertTrue(thread.isAlive());
1149	>	return;
1150	>	}
1151	>	Thread.yield();
1152		}
1153		}
1154
1155		/**
1156	<	* Returns a new started Thread running the given runnable.
1156	>	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
1157	>	* state: BLOCKED, WAITING, or TIMED_WAITING.
1158	>	*/
1159	>	void waitForThreadToEnterWaitState(Thread thread) {
1160	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
1161	>	}
1162	>
1163	>	/**
1164	>	* Returns the number of milliseconds since time given by
1165	>	* startNanoTime, which must have been previously returned from a
1166	>	* call to {@link System#nanoTime()}.
1167	>	*/
1168	>	static long millisElapsedSince(long startNanoTime) {
1169	>	return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
1170	>	}
1171	>
1172	>	//     void assertTerminatesPromptly(long timeoutMillis, Runnable r) {
1173	>	//         long startTime = System.nanoTime();
1174	>	//         try {
1175	>	//             r.run();
1176	>	//         } catch (Throwable fail) { threadUnexpectedException(fail); }
1177	>	//         if (millisElapsedSince(startTime) > timeoutMillis/2)
1178	>	//             throw new AssertionFailedError("did not return promptly");
1179	>	//     }
1180	>
1181	>	//     void assertTerminatesPromptly(Runnable r) {
1182	>	//         assertTerminatesPromptly(LONG_DELAY_MS/2, r);
1183	>	//     }
1184	>
1185	>	/**
1186	>	* Checks that timed f.get() returns the expected value, and does not
1187	>	* wait for the timeout to elapse before returning.
1188	>	*/
1189	>	<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
1190	>	long startTime = System.nanoTime();
1191	>	try {
1192	>	assertEquals(expectedValue, f.get(timeoutMillis, MILLISECONDS));
1193	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
1194	>	if (millisElapsedSince(startTime) > timeoutMillis/2)
1195	>	throw new AssertionFailedError("timed get did not return promptly");
1196	>	}
1197	>
1198	>	<T> void checkTimedGet(Future<T> f, T expectedValue) {
1199	>	checkTimedGet(f, expectedValue, LONG_DELAY_MS);
1200	>	}
1201	>
1202	>	/**
1203	>	* Returns a new started daemon Thread running the given runnable.
1204		*/
1205		Thread newStartedThread(Runnable runnable) {
1206		Thread t = new Thread(runnable);
1207	+	t.setDaemon(true);
1208		t.start();
1209		return t;
1210		}
1211
1212	+	/**
1213	+	* Waits for the specified time (in milliseconds) for the thread
1214	+	* to terminate (using {@link Thread#join(long)}), else interrupts
1215	+	* the thread (in the hope that it may terminate later) and fails.
1216	+	*/
1217	+	void awaitTermination(Thread t, long timeoutMillis) {
1218	+	try {
1219	+	t.join(timeoutMillis);
1220	+	} catch (InterruptedException fail) {
1221	+	threadUnexpectedException(fail);
1222	+	} finally {
1223	+	if (t.getState() != Thread.State.TERMINATED) {
1224	+	t.interrupt();
1225	+	threadFail("Test timed out");
1226	+	}
1227	+	}
1228	+	}
1229	+
1230	+	/**
1231	+	* Waits for LONG_DELAY_MS milliseconds for the thread to
1232	+	* terminate (using {@link Thread#join(long)}), else interrupts
1233	+	* the thread (in the hope that it may terminate later) and fails.
1234	+	*/
1235	+	void awaitTermination(Thread t) {
1236	+	awaitTermination(t, LONG_DELAY_MS);
1237	+	}
1238	+
1239		// Some convenient Runnable classes
1240
1241	<	abstract class CheckedRunnable implements Runnable {
1242	<	abstract void realRun() throws Throwable;
1241	>	public abstract class CheckedRunnable implements Runnable {
1242	>	protected abstract void realRun() throws Throwable;
1243
1244		public final void run() {
1245		try {
1246		realRun();
1247	<	} catch (Throwable t) {
1248	<	threadUnexpectedException(t);
1247	>	} catch (Throwable fail) {
1248	>	threadUnexpectedException(fail);
1249		}
1250		}
1251		}
1252
1253	<	abstract class RunnableShouldThrow implements Runnable {
1254	<	abstract void realRun() throws Throwable;
1253	>	public abstract class RunnableShouldThrow implements Runnable {
1254	>	protected abstract void realRun() throws Throwable;
1255
1256		final Class<?> exceptionClass;
1257
#	Line 457 | Line 1263 | public class JSR166TestCase extends Test
1263		try {
1264		realRun();
1265		threadShouldThrow(exceptionClass.getSimpleName());
460	–	} catch (InterruptedException success) {
1266		} catch (Throwable t) {
1267		if (! exceptionClass.isInstance(t))
1268		threadUnexpectedException(t);
#	Line 465 | Line 1270 | public class JSR166TestCase extends Test
1270		}
1271		}
1272
1273	<	abstract class ThreadShouldThrow extends Thread {
1274	<	abstract void realRun() throws Throwable;
1273	>	public abstract class ThreadShouldThrow extends Thread {
1274	>	protected abstract void realRun() throws Throwable;
1275
1276		final Class<?> exceptionClass;
1277
#	Line 478 | Line 1283 | public class JSR166TestCase extends Test
1283		try {
1284		realRun();
1285		threadShouldThrow(exceptionClass.getSimpleName());
481	–	} catch (InterruptedException success) {
1286		} catch (Throwable t) {
1287		if (! exceptionClass.isInstance(t))
1288		threadUnexpectedException(t);
#	Line 486 | Line 1290 | public class JSR166TestCase extends Test
1290		}
1291		}
1292
1293	<	abstract class CheckedInterruptedRunnable implements Runnable {
1294	<	abstract void realRun() throws Throwable;
1293	>	public abstract class CheckedInterruptedRunnable implements Runnable {
1294	>	protected abstract void realRun() throws Throwable;
1295
1296		public final void run() {
1297		try {
1298		realRun();
1299		threadShouldThrow("InterruptedException");
1300		} catch (InterruptedException success) {
1301	<	} catch (Throwable t) {
1302	<	threadUnexpectedException(t);
1301	>	threadAssertFalse(Thread.interrupted());
1302	>	} catch (Throwable fail) {
1303	>	threadUnexpectedException(fail);
1304		}
1305		}
1306		}
1307
1308	<	abstract class CheckedCallable<T> implements Callable<T> {
1309	<	abstract T realCall() throws Throwable;
1308	>	public abstract class CheckedCallable<T> implements Callable<T> {
1309	>	protected abstract T realCall() throws Throwable;
1310
1311		public final T call() {
1312		try {
1313		return realCall();
1314	<	} catch (Throwable t) {
1315	<	threadUnexpectedException(t);
1314	>	} catch (Throwable fail) {
1315	>	threadUnexpectedException(fail);
1316	>	return null;
1317		}
512	–	return null;
1318		}
1319		}
1320
1321	<	abstract class CheckedInterruptedCallable<T> implements Callable<T> {
1322	<	abstract T realCall() throws Throwable;
1321	>	public abstract class CheckedInterruptedCallable<T>
1322	>	implements Callable<T> {
1323	>	protected abstract T realCall() throws Throwable;
1324
1325		public final T call() {
1326		try {
#	Line 522 | Line 1328 | public class JSR166TestCase extends Test
1328		threadShouldThrow("InterruptedException");
1329		return result;
1330		} catch (InterruptedException success) {
1331	<	} catch (Throwable t) {
1332	<	threadUnexpectedException(t);
1331	>	threadAssertFalse(Thread.interrupted());
1332	>	} catch (Throwable fail) {
1333	>	threadUnexpectedException(fail);
1334		}
1335		return null;
1336		}
1337		}
1338
1339	<	static class NoOpRunnable implements Runnable {
1339	>	public static class NoOpRunnable implements Runnable {
1340		public void run() {}
1341		}
1342
1343	<	static class NoOpCallable implements Callable {
1343	>	public static class NoOpCallable implements Callable {
1344		public Object call() { return Boolean.TRUE; }
1345		}
1346
1347	<	static final String TEST_STRING = "a test string";
1347	>	public static final String TEST_STRING = "a test string";
1348	>
1349	>	public static class StringTask implements Callable<String> {
1350	>	final String value;
1351	>	public StringTask() { this(TEST_STRING); }
1352	>	public StringTask(String value) { this.value = value; }
1353	>	public String call() { return value; }
1354	>	}
1355	>
1356	>	public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
1357	>	return new CheckedCallable<String>() {
1358	>	protected String realCall() {
1359	>	try {
1360	>	latch.await();
1361	>	} catch (InterruptedException quittingTime) {}
1362	>	return TEST_STRING;
1363	>	}};
1364	>	}
1365
1366	<	static class StringTask implements Callable<String> {
1367	<	public String call() { return TEST_STRING; }
1366	>	public Runnable countDowner(final CountDownLatch latch) {
1367	>	return new CheckedRunnable() {
1368	>	public void realRun() throws InterruptedException {
1369	>	latch.countDown();
1370	>	}};
1371		}
1372
1373	<	static class NPETask implements Callable<String> {
1373	>	class LatchAwaiter extends CheckedRunnable {
1374	>	static final int NEW = 0;
1375	>	static final int RUNNING = 1;
1376	>	static final int DONE = 2;
1377	>	final CountDownLatch latch;
1378	>	int state = NEW;
1379	>	LatchAwaiter(CountDownLatch latch) { this.latch = latch; }
1380	>	public void realRun() throws InterruptedException {
1381	>	state = 1;
1382	>	await(latch);
1383	>	state = 2;
1384	>	}
1385	>	}
1386	>
1387	>	public LatchAwaiter awaiter(CountDownLatch latch) {
1388	>	return new LatchAwaiter(latch);
1389	>	}
1390	>
1391	>	public void await(CountDownLatch latch) {
1392	>	try {
1393	>	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1394	>	} catch (Throwable fail) {
1395	>	threadUnexpectedException(fail);
1396	>	}
1397	>	}
1398	>
1399	>	public void await(Semaphore semaphore) {
1400	>	try {
1401	>	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1402	>	} catch (Throwable fail) {
1403	>	threadUnexpectedException(fail);
1404	>	}
1405	>	}
1406	>
1407	>	//     /**
1408	>	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1409	>	//      */
1410	>	//     public void await(AtomicBoolean flag) {
1411	>	//         await(flag, LONG_DELAY_MS);
1412	>	//     }
1413	>
1414	>	//     /**
1415	>	//      * Spin-waits up to the specified timeout until flag becomes true.
1416	>	//      */
1417	>	//     public void await(AtomicBoolean flag, long timeoutMillis) {
1418	>	//         long startTime = System.nanoTime();
1419	>	//         while (!flag.get()) {
1420	>	//             if (millisElapsedSince(startTime) > timeoutMillis)
1421	>	//                 throw new AssertionFailedError("timed out");
1422	>	//             Thread.yield();
1423	>	//         }
1424	>	//     }
1425	>
1426	>	public static class NPETask implements Callable<String> {
1427		public String call() { throw new NullPointerException(); }
1428		}
1429
1430	<	static class CallableOne implements Callable<Integer> {
1430	>	public static class CallableOne implements Callable<Integer> {
1431		public Integer call() { return one; }
1432		}
1433
1434	<	class ShortRunnable extends CheckedRunnable {
1435	<	void realRun() throws Throwable {
1436	<	Thread.sleep(SHORT_DELAY_MS);
1434	>	public class ShortRunnable extends CheckedRunnable {
1435	>	protected void realRun() throws Throwable {
1436	>	delay(SHORT_DELAY_MS);
1437		}
1438		}
1439
1440	<	class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1441	<	void realRun() throws InterruptedException {
1442	<	Thread.sleep(SHORT_DELAY_MS);
1440	>	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1441	>	protected void realRun() throws InterruptedException {
1442	>	delay(SHORT_DELAY_MS);
1443		}
1444		}
1445
1446	<	class SmallRunnable extends CheckedRunnable {
1447	<	void realRun() throws Throwable {
1448	<	Thread.sleep(SMALL_DELAY_MS);
1446	>	public class SmallRunnable extends CheckedRunnable {
1447	>	protected void realRun() throws Throwable {
1448	>	delay(SMALL_DELAY_MS);
1449		}
1450		}
1451
1452	<	class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1453	<	void realRun() {
1452	>	public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1453	>	protected void realRun() {
1454		try {
1455	<	Thread.sleep(SMALL_DELAY_MS);
1456	<	}
577	<	catch (InterruptedException ok) {
578	<	}
1455	>	delay(SMALL_DELAY_MS);
1456	>	} catch (InterruptedException ok) {}
1457		}
1458		}
1459
1460	<	class SmallCallable extends CheckedCallable {
1461	<	Object realCall() throws Throwable {
1462	<	Thread.sleep(SMALL_DELAY_MS);
1460	>	public class SmallCallable extends CheckedCallable {
1461	>	protected Object realCall() throws InterruptedException {
1462	>	delay(SMALL_DELAY_MS);
1463		return Boolean.TRUE;
1464		}
1465		}
1466
1467	<	class SmallInterruptedRunnable extends CheckedInterruptedRunnable {
1468	<	void realRun() throws InterruptedException {
1469	<	Thread.sleep(SMALL_DELAY_MS);
1467	>	public class MediumRunnable extends CheckedRunnable {
1468	>	protected void realRun() throws Throwable {
1469	>	delay(MEDIUM_DELAY_MS);
1470		}
1471		}
1472
1473	<	class MediumRunnable extends CheckedRunnable {
1474	<	void realRun() throws Throwable {
1475	<	Thread.sleep(MEDIUM_DELAY_MS);
1473	>	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1474	>	protected void realRun() throws InterruptedException {
1475	>	delay(MEDIUM_DELAY_MS);
1476		}
1477		}
1478
1479	<	class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1480	<	void realRun() throws InterruptedException {
1481	<	Thread.sleep(MEDIUM_DELAY_MS);
1482	<	}
1479	>	public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1480	>	return new CheckedRunnable() {
1481	>	protected void realRun() {
1482	>	try {
1483	>	delay(timeoutMillis);
1484	>	} catch (InterruptedException ok) {}
1485	>	}};
1486		}
1487
1488	<	class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1489	<	void realRun() {
1488	>	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1489	>	protected void realRun() {
1490		try {
1491	<	Thread.sleep(MEDIUM_DELAY_MS);
1492	<	}
612	<	catch (InterruptedException ok) {
613	<	}
1491	>	delay(MEDIUM_DELAY_MS);
1492	>	} catch (InterruptedException ok) {}
1493		}
1494		}
1495
1496	<	class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1497	<	void realRun() {
1496	>	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1497	>	protected void realRun() {
1498		try {
1499	<	Thread.sleep(LONG_DELAY_MS);
1500	<	}
622	<	catch (InterruptedException ok) {
623	<	}
1499	>	delay(LONG_DELAY_MS);
1500	>	} catch (InterruptedException ok) {}
1501		}
1502		}
1503
1504		/**
1505		* For use as ThreadFactory in constructors
1506		*/
1507	<	static class SimpleThreadFactory implements ThreadFactory {
1507	>	public static class SimpleThreadFactory implements ThreadFactory {
1508		public Thread newThread(Runnable r) {
1509		return new Thread(r);
1510		}
1511		}
1512
1513	<	static class TrackedShortRunnable implements Runnable {
1514	<	volatile boolean done = false;
1513	>	public interface TrackedRunnable extends Runnable {
1514	>	boolean isDone();
1515	>	}
1516	>
1517	>	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1518	>	return new TrackedRunnable() {
1519	>	private volatile boolean done = false;
1520	>	public boolean isDone() { return done; }
1521	>	public void run() {
1522	>	try {
1523	>	delay(timeoutMillis);
1524	>	done = true;
1525	>	} catch (InterruptedException ok) {}
1526	>	}
1527	>	};
1528	>	}
1529	>
1530	>	public static class TrackedShortRunnable implements Runnable {
1531	>	public volatile boolean done = false;
1532	>	public void run() {
1533	>	try {
1534	>	delay(SHORT_DELAY_MS);
1535	>	done = true;
1536	>	} catch (InterruptedException ok) {}
1537	>	}
1538	>	}
1539	>
1540	>	public static class TrackedSmallRunnable implements Runnable {
1541	>	public volatile boolean done = false;
1542		public void run() {
1543		try {
1544	<	Thread.sleep(SMALL_DELAY_MS);
1544	>	delay(SMALL_DELAY_MS);
1545		done = true;
1546	<	} catch (InterruptedException ok) {
643	<	}
1546	>	} catch (InterruptedException ok) {}
1547		}
1548		}
1549
1550	<	static class TrackedMediumRunnable implements Runnable {
1551	<	volatile boolean done = false;
1550	>	public static class TrackedMediumRunnable implements Runnable {
1551	>	public volatile boolean done = false;
1552		public void run() {
1553		try {
1554	<	Thread.sleep(MEDIUM_DELAY_MS);
1554	>	delay(MEDIUM_DELAY_MS);
1555		done = true;
1556	<	} catch (InterruptedException ok) {
654	<	}
1556	>	} catch (InterruptedException ok) {}
1557		}
1558		}
1559
1560	<	static class TrackedLongRunnable implements Runnable {
1561	<	volatile boolean done = false;
1560	>	public static class TrackedLongRunnable implements Runnable {
1561	>	public volatile boolean done = false;
1562		public void run() {
1563		try {
1564	<	Thread.sleep(LONG_DELAY_MS);
1564	>	delay(LONG_DELAY_MS);
1565		done = true;
1566	<	} catch (InterruptedException ok) {
665	<	}
1566	>	} catch (InterruptedException ok) {}
1567		}
1568		}
1569
1570	<	static class TrackedNoOpRunnable implements Runnable {
1571	<	volatile boolean done = false;
1570	>	public static class TrackedNoOpRunnable implements Runnable {
1571	>	public volatile boolean done = false;
1572		public void run() {
1573		done = true;
1574		}
1575		}
1576
1577	<	static class TrackedCallable implements Callable {
1578	<	volatile boolean done = false;
1577	>	public static class TrackedCallable implements Callable {
1578	>	public volatile boolean done = false;
1579		public Object call() {
1580		try {
1581	<	Thread.sleep(SMALL_DELAY_MS);
1581	>	delay(SMALL_DELAY_MS);
1582		done = true;
1583	<	} catch (InterruptedException ok) {
683	<	}
1583	>	} catch (InterruptedException ok) {}
1584		return Boolean.TRUE;
1585		}
1586		}
1587
1588	+	/**
1589	+	* Analog of CheckedRunnable for RecursiveAction
1590	+	*/
1591	+	public abstract class CheckedRecursiveAction extends RecursiveAction {
1592	+	protected abstract void realCompute() throws Throwable;
1593	+
1594	+	@Override protected final void compute() {
1595	+	try {
1596	+	realCompute();
1597	+	} catch (Throwable fail) {
1598	+	threadUnexpectedException(fail);
1599	+	}
1600	+	}
1601	+	}
1602	+
1603	+	/**
1604	+	* Analog of CheckedCallable for RecursiveTask
1605	+	*/
1606	+	public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1607	+	protected abstract T realCompute() throws Throwable;
1608	+
1609	+	@Override protected final T compute() {
1610	+	try {
1611	+	return realCompute();
1612	+	} catch (Throwable fail) {
1613	+	threadUnexpectedException(fail);
1614	+	return null;
1615	+	}
1616	+	}
1617	+	}
1618
1619		/**
1620		* For use as RejectedExecutionHandler in constructors
1621		*/
1622	<	static class NoOpREHandler implements RejectedExecutionHandler {
1622	>	public static class NoOpREHandler implements RejectedExecutionHandler {
1623		public void rejectedExecution(Runnable r,
1624		ThreadPoolExecutor executor) {}
1625		}
1626
1627	+	/**
1628	+	* A CyclicBarrier that uses timed await and fails with
1629	+	* AssertionFailedErrors instead of throwing checked exceptions.
1630	+	*/
1631	+	public class CheckedBarrier extends CyclicBarrier {
1632	+	public CheckedBarrier(int parties) { super(parties); }
1633	+
1634	+	public int await() {
1635	+	try {
1636	+	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1637	+	} catch (TimeoutException timedOut) {
1638	+	throw new AssertionFailedError("timed out");
1639	+	} catch (Exception fail) {
1640	+	AssertionFailedError afe =
1641	+	new AssertionFailedError("Unexpected exception: " + fail);
1642	+	afe.initCause(fail);
1643	+	throw afe;
1644	+	}
1645	+	}
1646	+	}
1647	+
1648	+	void checkEmpty(BlockingQueue q) {
1649	+	try {
1650	+	assertTrue(q.isEmpty());
1651	+	assertEquals(0, q.size());
1652	+	assertNull(q.peek());
1653	+	assertNull(q.poll());
1654	+	assertNull(q.poll(0, MILLISECONDS));
1655	+	assertEquals(q.toString(), "[]");
1656	+	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1657	+	assertFalse(q.iterator().hasNext());
1658	+	try {
1659	+	q.element();
1660	+	shouldThrow();
1661	+	} catch (NoSuchElementException success) {}
1662	+	try {
1663	+	q.iterator().next();
1664	+	shouldThrow();
1665	+	} catch (NoSuchElementException success) {}
1666	+	try {
1667	+	q.remove();
1668	+	shouldThrow();
1669	+	} catch (NoSuchElementException success) {}
1670	+	} catch (InterruptedException fail) { threadUnexpectedException(fail); }
1671	+	}
1672	+
1673	+	void assertSerialEquals(Object x, Object y) {
1674	+	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1675	+	}
1676	+
1677	+	void assertNotSerialEquals(Object x, Object y) {
1678	+	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1679	+	}
1680	+
1681	+	byte[] serialBytes(Object o) {
1682	+	try {
1683	+	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1684	+	ObjectOutputStream oos = new ObjectOutputStream(bos);
1685	+	oos.writeObject(o);
1686	+	oos.flush();
1687	+	oos.close();
1688	+	return bos.toByteArray();
1689	+	} catch (Throwable fail) {
1690	+	threadUnexpectedException(fail);
1691	+	return new byte[0];
1692	+	}
1693	+	}
1694	+
1695	+	@SuppressWarnings("unchecked")
1696	+	<T> T serialClone(T o) {
1697	+	try {
1698	+	ObjectInputStream ois = new ObjectInputStream
1699	+	(new ByteArrayInputStream(serialBytes(o)));
1700	+	T clone = (T) ois.readObject();
1701	+	assertSame(o.getClass(), clone.getClass());
1702	+	return clone;
1703	+	} catch (Throwable fail) {
1704	+	threadUnexpectedException(fail);
1705	+	return null;
1706	+	}
1707	+	}
1708	+
1709	+	public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1710	+	Runnable... throwingActions) {
1711	+	for (Runnable throwingAction : throwingActions) {
1712	+	boolean threw = false;
1713	+	try { throwingAction.run(); }
1714	+	catch (Throwable t) {
1715	+	threw = true;
1716	+	if (!expectedExceptionClass.isInstance(t)) {
1717	+	AssertionFailedError afe =
1718	+	new AssertionFailedError
1719	+	("Expected " + expectedExceptionClass.getName() +
1720	+	", got " + t.getClass().getName());
1721	+	afe.initCause(t);
1722	+	threadUnexpectedException(afe);
1723	+	}
1724	+	}
1725	+	if (!threw)
1726	+	shouldThrow(expectedExceptionClass.getName());
1727	+	}
1728	+	}
1729	+
1730	+	public void assertIteratorExhausted(Iterator<?> it) {
1731	+	try {
1732	+	it.next();
1733	+	shouldThrow();
1734	+	} catch (NoSuchElementException success) {}
1735	+	assertFalse(it.hasNext());
1736	+	}
1737		}

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