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 1.2 by dl, Sat Sep 20 00:31:57 2003 UTC vs.
Revision 1.212 by jsr166, Fri Dec 9 04:24:07 2016 UTC

#	Line 1 | Line 1
1		/*
2	<	* Written by members of JCP JSR-166 Expert Group and released to the
3	<	* public domain. Use, modify, and redistribute this code in any way
4	<	* without acknowledgement. Other contributors include Andrew Wright,
5	<	* Jeffrey Hayes, Pat Fischer, Mike Judd.
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/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.*;
9	>	/*
10	>	* @test
11	>	* @summary JSR-166 tck tests
12	>	* @modules java.base/java.util.concurrent:open
13	>	*          java.management
14	>	* @build *
15	>	* @run junit/othervm/timeout=1000 -Djsr166.testImplementationDetails=true JSR166TestCase
16	>	* @run junit/othervm/timeout=1000 -Djava.util.concurrent.ForkJoinPool.common.parallelism=0 -Djsr166.testImplementationDetails=true JSR166TestCase
17	>	* @run junit/othervm/timeout=1000 -Djava.util.concurrent.ForkJoinPool.common.parallelism=1 -Djava.util.secureRandomSeed=true JSR166TestCase
18	>	*/
19
20	+	import static java.util.concurrent.TimeUnit.MILLISECONDS;
21	+	import static java.util.concurrent.TimeUnit.MINUTES;
22	+	import static java.util.concurrent.TimeUnit.NANOSECONDS;
23	+
24	+	import java.io.ByteArrayInputStream;
25	+	import java.io.ByteArrayOutputStream;
26	+	import java.io.ObjectInputStream;
27	+	import java.io.ObjectOutputStream;
28	+	import java.lang.management.ManagementFactory;
29	+	import java.lang.management.ThreadInfo;
30	+	import java.lang.management.ThreadMXBean;
31	+	import java.lang.reflect.Constructor;
32	+	import java.lang.reflect.Method;
33	+	import java.lang.reflect.Modifier;
34	+	import java.nio.file.Files;
35	+	import java.nio.file.Paths;
36	+	import java.security.CodeSource;
37	+	import java.security.Permission;
38	+	import java.security.PermissionCollection;
39	+	import java.security.Permissions;
40	+	import java.security.Policy;
41	+	import java.security.ProtectionDomain;
42	+	import java.security.SecurityPermission;
43	+	import java.util.ArrayList;
44	+	import java.util.Arrays;
45	+	import java.util.Collection;
46	+	import java.util.Collections;
47	+	import java.util.Date;
48	+	import java.util.Enumeration;
49	+	import java.util.Iterator;
50	+	import java.util.List;
51	+	import java.util.NoSuchElementException;
52	+	import java.util.PropertyPermission;
53	+	import java.util.concurrent.BlockingQueue;
54	+	import java.util.concurrent.Callable;
55	+	import java.util.concurrent.CountDownLatch;
56	+	import java.util.concurrent.CyclicBarrier;
57	+	import java.util.concurrent.ExecutionException;
58	+	import java.util.concurrent.Executors;
59	+	import java.util.concurrent.ExecutorService;
60	+	import java.util.concurrent.ForkJoinPool;
61	+	import java.util.concurrent.Future;
62	+	import java.util.concurrent.RecursiveAction;
63	+	import java.util.concurrent.RecursiveTask;
64	+	import java.util.concurrent.RejectedExecutionHandler;
65	+	import java.util.concurrent.Semaphore;
66	+	import java.util.concurrent.SynchronousQueue;
67	+	import java.util.concurrent.ThreadFactory;
68	+	import java.util.concurrent.ThreadLocalRandom;
69	+	import java.util.concurrent.ThreadPoolExecutor;
70	+	import java.util.concurrent.TimeoutException;
71	+	import java.util.concurrent.atomic.AtomicBoolean;
72	+	import java.util.concurrent.atomic.AtomicReference;
73	+	import java.util.regex.Matcher;
74	+	import java.util.regex.Pattern;
75	+
76	+	import junit.framework.AssertionFailedError;
77	+	import junit.framework.Test;
78	+	import junit.framework.TestCase;
79	+	import junit.framework.TestResult;
80	+	import junit.framework.TestSuite;
81
82		/**
83	<	* Base class for JSR166 Junit TCK tests.  Defines some constants and
84	<	* utility methods, as well as a simple framework for helping to make
85	<	* sure that assertions failing in generated threads cause the
86	<	* associated test that generated them to itself fail (which JUnit doe
87	<	* not otherwise arrange).  The rules for creating such tests are:
83	>	* Base class for JSR166 Junit TCK tests.  Defines some constants,
84	>	* utility methods and classes, as well as a simple framework for
85	>	* helping to make sure that assertions failing in generated threads
86	>	* cause the associated test that generated them to itself fail (which
87	>	* JUnit does not otherwise arrange).  The rules for creating such
88	>	* tests are:
89		*
90		* <ol>
91		*
92	<	* <li> All assertions in code running in generated threads must use
93	<	* the forms {@link threadFail} , {@link threadAssertTrue} {@link
94	<	* threadAssertEquals}, or {@link threadAssertNull}, (not
95	<	* <tt>fail</tt>, <tt>assertTrue</tt>, etc.) It is OK (but not
92	>	* <li>All assertions in code running in generated threads must use
93	>	* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link
94	>	* #threadAssertEquals}, or {@link #threadAssertNull}, (not
95	>	* {@code fail}, {@code assertTrue}, etc.) It is OK (but not
96		* particularly recommended) for other code to use these forms too.
97		* Only the most typically used JUnit assertion methods are defined
98	<	* this way, but enough to live with.</li>
98	>	* this way, but enough to live with.
99		*
100	<	* <li> If you override {@link setUp} or {@link tearDown}, make sure
101	<	* to invoke <tt>super.setUp</tt> and <tt>super.tearDown</tt> within
100	>	* <li>If you override {@link #setUp} or {@link #tearDown}, make sure
101	>	* to invoke {@code super.setUp} and {@code super.tearDown} within
102		* them. These methods are used to clear and check for thread
103	<	* assertion failures.</li>
103	>	* assertion failures.
104		*
105	<	* <li>All delays and timeouts must use one of the constants {@link
106	<	* SHORT_DELAY_MS}, {@link SMALL_DELAY_MS}, {@link MEDIUM_DELAY_MS},
107	<	* {@link LONG_DELAY_MS}. The idea here is that a SHORT is always
108	<	* discriminatable from zero time, and always allows enough time for
109	<	* the small amounts of computation (creating a thread, calling a few
105	>	* <li>All delays and timeouts must use one of the constants {@code
106	>	* SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS},
107	>	* {@code LONG_DELAY_MS}. The idea here is that a SHORT is always
108	>	* discriminable from zero time, and always allows enough time for the
109	>	* small amounts of computation (creating a thread, calling a few
110		* methods, etc) needed to reach a timeout point. Similarly, a SMALL
111		* is always discriminable as larger than SHORT and smaller than
112		* MEDIUM.  And so on. These constants are set to conservative values,
113		* but even so, if there is ever any doubt, they can all be increased
114	<	* in one spot to rerun tests on slower platforms</li>
114	>	* in one spot to rerun tests on slower platforms.
115		*
116	<	* <li> All threads generated must be joined inside each test case
117	<	* method (or <tt>fail</tt> to do so) before returning from the
118	<	* method. The {@link joinPool} method can be used to do this when
119	<	* using Executors.</li>
116	>	* <li>All threads generated must be joined inside each test case
117	>	* method (or {@code fail} to do so) before returning from the
118	>	* method. The {@code joinPool} method can be used to do this when
119	>	* using Executors.
120		*
121		* </ol>
122	+	*
123	+	* <p><b>Other notes</b>
124	+	* <ul>
125	+	*
126	+	* <li>Usually, there is one testcase method per JSR166 method
127	+	* covering "normal" operation, and then as many exception-testing
128	+	* methods as there are exceptions the method can throw. Sometimes
129	+	* there are multiple tests per JSR166 method when the different
130	+	* "normal" behaviors differ significantly. And sometimes testcases
131	+	* cover multiple methods when they cannot be tested in isolation.
132	+	*
133	+	* <li>The documentation style for testcases is to provide as javadoc
134	+	* a simple sentence or two describing the property that the testcase
135	+	* method purports to test. The javadocs do not say anything about how
136	+	* the property is tested. To find out, read the code.
137	+	*
138	+	* <li>These tests are "conformance tests", and do not attempt to
139	+	* test throughput, latency, scalability or other performance factors
140	+	* (see the separate "jtreg" tests for a set intended to check these
141	+	* for the most central aspects of functionality.) So, most tests use
142	+	* the smallest sensible numbers of threads, collection sizes, etc
143	+	* needed to check basic conformance.
144	+	*
145	+	* <li>The test classes currently do not declare inclusion in
146	+	* any particular package to simplify things for people integrating
147	+	* them in TCK test suites.
148	+	*
149	+	* <li>As a convenience, the {@code main} of this class (JSR166TestCase)
150	+	* runs all JSR166 unit tests.
151	+	*
152	+	* </ul>
153		*/
154		public class JSR166TestCase extends TestCase {
155	+	private static final boolean useSecurityManager =
156	+	Boolean.getBoolean("jsr166.useSecurityManager");
157	+
158	+	protected static final boolean expensiveTests =
159	+	Boolean.getBoolean("jsr166.expensiveTests");
160	+
161	+	/**
162	+	* If true, also run tests that are not part of the official tck
163	+	* because they test unspecified implementation details.
164	+	*/
165	+	protected static final boolean testImplementationDetails =
166	+	Boolean.getBoolean("jsr166.testImplementationDetails");
167	+
168	+	/**
169	+	* If true, report on stdout all "slow" tests, that is, ones that
170	+	* take more than profileThreshold milliseconds to execute.
171	+	*/
172	+	private static final boolean profileTests =
173	+	Boolean.getBoolean("jsr166.profileTests");
174	+
175	+	/**
176	+	* The number of milliseconds that tests are permitted for
177	+	* execution without being reported, when profileTests is set.
178	+	*/
179	+	private static final long profileThreshold =
180	+	Long.getLong("jsr166.profileThreshold", 100);
181	+
182	+	/**
183	+	* The number of repetitions per test (for tickling rare bugs).
184	+	*/
185	+	private static final int runsPerTest =
186	+	Integer.getInteger("jsr166.runsPerTest", 1);
187	+
188	+	/**
189	+	* The number of repetitions of the test suite (for finding leaks?).
190	+	*/
191	+	private static final int suiteRuns =
192	+	Integer.getInteger("jsr166.suiteRuns", 1);
193	+
194	+	/**
195	+	* Returns the value of the system property, or NaN if not defined.
196	+	*/
197	+	private static float systemPropertyValue(String name) {
198	+	String floatString = System.getProperty(name);
199	+	if (floatString == null)
200	+	return Float.NaN;
201	+	try {
202	+	return Float.parseFloat(floatString);
203	+	} catch (NumberFormatException ex) {
204	+	throw new IllegalArgumentException(
205	+	String.format("Bad float value in system property %s=%s",
206	+	name, floatString));
207	+	}
208	+	}
209	+
210	+	/**
211	+	* The scaling factor to apply to standard delays used in tests.
212	+	* May be initialized from any of:
213	+	* - the "jsr166.delay.factor" system property
214	+	* - the "test.timeout.factor" system property (as used by jtreg)
215	+	*   See: http://openjdk.java.net/jtreg/tag-spec.html
216	+	* - hard-coded fuzz factor when using a known slowpoke VM
217	+	*/
218	+	private static final float delayFactor = delayFactor();
219	+
220	+	private static float delayFactor() {
221	+	float x;
222	+	if (!Float.isNaN(x = systemPropertyValue("jsr166.delay.factor")))
223	+	return x;
224	+	if (!Float.isNaN(x = systemPropertyValue("test.timeout.factor")))
225	+	return x;
226	+	String prop = System.getProperty("java.vm.version");
227	+	if (prop != null && prop.matches(".*debug.*"))
228	+	return 4.0f; // How much slower is fastdebug than product?!
229	+	return 1.0f;
230	+	}
231	+
232	+	public JSR166TestCase() { super(); }
233	+	public JSR166TestCase(String name) { super(name); }
234	+
235	+	/**
236	+	* A filter for tests to run, matching strings of the form
237	+	* methodName(className), e.g. "testInvokeAll5(ForkJoinPoolTest)"
238	+	* Usefully combined with jsr166.runsPerTest.
239	+	*/
240	+	private static final Pattern methodFilter = methodFilter();
241	+
242	+	private static Pattern methodFilter() {
243	+	String regex = System.getProperty("jsr166.methodFilter");
244	+	return (regex == null) ? null : Pattern.compile(regex);
245	+	}
246	+
247	+	// Instrumentation to debug very rare, but very annoying hung test runs.
248	+	static volatile TestCase currentTestCase;
249	+	// static volatile int currentRun = 0;
250	+	static {
251	+	Runnable checkForWedgedTest = new Runnable() { public void run() {
252	+	// Avoid spurious reports with enormous runsPerTest.
253	+	// A single test case run should never take more than 1 second.
254	+	// But let's cap it at the high end too ...
255	+	final int timeoutMinutes =
256	+	Math.min(15, Math.max(runsPerTest / 60, 1));
257	+	for (TestCase lastTestCase = currentTestCase;;) {
258	+	try { MINUTES.sleep(timeoutMinutes); }
259	+	catch (InterruptedException unexpected) { break; }
260	+	if (lastTestCase == currentTestCase) {
261	+	System.err.printf(
262	+	"Looks like we're stuck running test: %s%n",
263	+	lastTestCase);
264	+	//                     System.err.printf(
265	+	//                         "Looks like we're stuck running test: %s (%d/%d)%n",
266	+	//                         lastTestCase, currentRun, runsPerTest);
267	+	//                     System.err.println("availableProcessors=" +
268	+	//                         Runtime.getRuntime().availableProcessors());
269	+	//                     System.err.printf("cpu model = %s%n", cpuModel());
270	+	dumpTestThreads();
271	+	// one stack dump is probably enough; more would be spam
272	+	break;
273	+	}
274	+	lastTestCase = currentTestCase;
275	+	}}};
276	+	Thread thread = new Thread(checkForWedgedTest, "checkForWedgedTest");
277	+	thread.setDaemon(true);
278	+	thread.start();
279	+	}
280	+
281	+	//     public static String cpuModel() {
282	+	//         try {
283	+	//             Matcher matcher = Pattern.compile("model name\\s*: (.*)")
284	+	//                 .matcher(new String(
285	+	//                      Files.readAllBytes(Paths.get("/proc/cpuinfo")), "UTF-8"));
286	+	//             matcher.find();
287	+	//             return matcher.group(1);
288	+	//         } catch (Exception ex) { return null; }
289	+	//     }
290	+
291	+	public void runBare() throws Throwable {
292	+	currentTestCase = this;
293	+	if (methodFilter == null
294	+	|| methodFilter.matcher(toString()).find())
295	+	super.runBare();
296	+	}
297	+
298	+	protected void runTest() throws Throwable {
299	+	for (int i = 0; i < runsPerTest; i++) {
300	+	// currentRun = i;
301	+	if (profileTests)
302	+	runTestProfiled();
303	+	else
304	+	super.runTest();
305	+	}
306	+	}
307	+
308	+	protected void runTestProfiled() throws Throwable {
309	+	for (int i = 0; i < 2; i++) {
310	+	long startTime = System.nanoTime();
311	+	super.runTest();
312	+	long elapsedMillis = millisElapsedSince(startTime);
313	+	if (elapsedMillis < profileThreshold)
314	+	break;
315	+	// Never report first run of any test; treat it as a
316	+	// warmup run, notably to trigger all needed classloading,
317	+	if (i > 0)
318	+	System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
319	+	}
320	+	}
321	+
322	+	/**
323	+	* Runs all JSR166 unit tests using junit.textui.TestRunner.
324	+	*/
325	+	public static void main(String[] args) {
326	+	main(suite(), args);
327	+	}
328	+
329	+	static class PithyResultPrinter extends junit.textui.ResultPrinter {
330	+	PithyResultPrinter(java.io.PrintStream writer) { super(writer); }
331	+	long runTime;
332	+	public void startTest(Test test) {}
333	+	protected void printHeader(long runTime) {
334	+	this.runTime = runTime; // defer printing for later
335	+	}
336	+	protected void printFooter(TestResult result) {
337	+	if (result.wasSuccessful()) {
338	+	getWriter().println("OK (" + result.runCount() + " tests)"
339	+	+ "  Time: " + elapsedTimeAsString(runTime));
340	+	} else {
341	+	getWriter().println("Time: " + elapsedTimeAsString(runTime));
342	+	super.printFooter(result);
343	+	}
344	+	}
345	+	}
346	+
347	+	/**
348	+	* Returns a TestRunner that doesn't bother with unnecessary
349	+	* fluff, like printing a "." for each test case.
350	+	*/
351	+	static junit.textui.TestRunner newPithyTestRunner() {
352	+	junit.textui.TestRunner runner = new junit.textui.TestRunner();
353	+	runner.setPrinter(new PithyResultPrinter(System.out));
354	+	return runner;
355	+	}
356	+
357	+	/**
358	+	* Runs all unit tests in the given test suite.
359	+	* Actual behavior influenced by jsr166.* system properties.
360	+	*/
361	+	static void main(Test suite, String[] args) {
362	+	if (useSecurityManager) {
363	+	System.err.println("Setting a permissive security manager");
364	+	Policy.setPolicy(permissivePolicy());
365	+	System.setSecurityManager(new SecurityManager());
366	+	}
367	+	for (int i = 0; i < suiteRuns; i++) {
368	+	TestResult result = newPithyTestRunner().doRun(suite);
369	+	if (!result.wasSuccessful())
370	+	System.exit(1);
371	+	System.gc();
372	+	System.runFinalization();
373	+	}
374	+	}
375	+
376	+	public static TestSuite newTestSuite(Object... suiteOrClasses) {
377	+	TestSuite suite = new TestSuite();
378	+	for (Object suiteOrClass : suiteOrClasses) {
379	+	if (suiteOrClass instanceof TestSuite)
380	+	suite.addTest((TestSuite) suiteOrClass);
381	+	else if (suiteOrClass instanceof Class)
382	+	suite.addTest(new TestSuite((Class<?>) suiteOrClass));
383	+	else
384	+	throw new ClassCastException("not a test suite or class");
385	+	}
386	+	return suite;
387	+	}
388	+
389	+	public static void addNamedTestClasses(TestSuite suite,
390	+	String... testClassNames) {
391	+	for (String testClassName : testClassNames) {
392	+	try {
393	+	Class<?> testClass = Class.forName(testClassName);
394	+	Method m = testClass.getDeclaredMethod("suite",
395	+	new Class<?>[0]);
396	+	suite.addTest(newTestSuite((Test)m.invoke(null)));
397	+	} catch (Exception e) {
398	+	throw new Error("Missing test class", e);
399	+	}
400	+	}
401	+	}
402	+
403	+	public static final double JAVA_CLASS_VERSION;
404	+	public static final String JAVA_SPECIFICATION_VERSION;
405	+	static {
406	+	try {
407	+	JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
408	+	new java.security.PrivilegedAction<Double>() {
409	+	public Double run() {
410	+	return Double.valueOf(System.getProperty("java.class.version"));}});
411	+	JAVA_SPECIFICATION_VERSION = java.security.AccessController.doPrivileged(
412	+	new java.security.PrivilegedAction<String>() {
413	+	public String run() {
414	+	return System.getProperty("java.specification.version");}});
415	+	} catch (Throwable t) {
416	+	throw new Error(t);
417	+	}
418	+	}
419	+
420	+	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
421	+	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
422	+	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
423	+	public static boolean atLeastJava9() {
424	+	return JAVA_CLASS_VERSION >= 53.0
425	+	// As of 2015-09, java9 still uses 52.0 class file version
426	+	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?(9|[0-9][0-9])$");
427	+	}
428	+	public static boolean atLeastJava10() {
429	+	return JAVA_CLASS_VERSION >= 54.0
430	+	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?[0-9][0-9]$");
431	+	}
432	+
433	+	/**
434	+	* Collects all JSR166 unit tests as one suite.
435	+	*/
436	+	public static Test suite() {
437	+	// Java7+ test classes
438	+	TestSuite suite = newTestSuite(
439	+	ForkJoinPoolTest.suite(),
440	+	ForkJoinTaskTest.suite(),
441	+	RecursiveActionTest.suite(),
442	+	RecursiveTaskTest.suite(),
443	+	LinkedTransferQueueTest.suite(),
444	+	PhaserTest.suite(),
445	+	ThreadLocalRandomTest.suite(),
446	+	AbstractExecutorServiceTest.suite(),
447	+	AbstractQueueTest.suite(),
448	+	AbstractQueuedSynchronizerTest.suite(),
449	+	AbstractQueuedLongSynchronizerTest.suite(),
450	+	ArrayBlockingQueueTest.suite(),
451	+	ArrayDequeTest.suite(),
452	+	ArrayListTest.suite(),
453	+	AtomicBooleanTest.suite(),
454	+	AtomicIntegerArrayTest.suite(),
455	+	AtomicIntegerFieldUpdaterTest.suite(),
456	+	AtomicIntegerTest.suite(),
457	+	AtomicLongArrayTest.suite(),
458	+	AtomicLongFieldUpdaterTest.suite(),
459	+	AtomicLongTest.suite(),
460	+	AtomicMarkableReferenceTest.suite(),
461	+	AtomicReferenceArrayTest.suite(),
462	+	AtomicReferenceFieldUpdaterTest.suite(),
463	+	AtomicReferenceTest.suite(),
464	+	AtomicStampedReferenceTest.suite(),
465	+	ConcurrentHashMapTest.suite(),
466	+	ConcurrentLinkedDequeTest.suite(),
467	+	ConcurrentLinkedQueueTest.suite(),
468	+	ConcurrentSkipListMapTest.suite(),
469	+	ConcurrentSkipListSubMapTest.suite(),
470	+	ConcurrentSkipListSetTest.suite(),
471	+	ConcurrentSkipListSubSetTest.suite(),
472	+	CopyOnWriteArrayListTest.suite(),
473	+	CopyOnWriteArraySetTest.suite(),
474	+	CountDownLatchTest.suite(),
475	+	CountedCompleterTest.suite(),
476	+	CyclicBarrierTest.suite(),
477	+	DelayQueueTest.suite(),
478	+	EntryTest.suite(),
479	+	ExchangerTest.suite(),
480	+	ExecutorsTest.suite(),
481	+	ExecutorCompletionServiceTest.suite(),
482	+	FutureTaskTest.suite(),
483	+	LinkedBlockingDequeTest.suite(),
484	+	LinkedBlockingQueueTest.suite(),
485	+	LinkedListTest.suite(),
486	+	LockSupportTest.suite(),
487	+	PriorityBlockingQueueTest.suite(),
488	+	PriorityQueueTest.suite(),
489	+	ReentrantLockTest.suite(),
490	+	ReentrantReadWriteLockTest.suite(),
491	+	ScheduledExecutorTest.suite(),
492	+	ScheduledExecutorSubclassTest.suite(),
493	+	SemaphoreTest.suite(),
494	+	SynchronousQueueTest.suite(),
495	+	SystemTest.suite(),
496	+	ThreadLocalTest.suite(),
497	+	ThreadPoolExecutorTest.suite(),
498	+	ThreadPoolExecutorSubclassTest.suite(),
499	+	ThreadTest.suite(),
500	+	TimeUnitTest.suite(),
501	+	TreeMapTest.suite(),
502	+	TreeSetTest.suite(),
503	+	TreeSubMapTest.suite(),
504	+	TreeSubSetTest.suite(),
505	+	VectorTest.suite());
506	+
507	+	// Java8+ test classes
508	+	if (atLeastJava8()) {
509	+	String[] java8TestClassNames = {
510	+	"ArrayDeque8Test",
511	+	"Atomic8Test",
512	+	"CompletableFutureTest",
513	+	"ConcurrentHashMap8Test",
514	+	"CountedCompleter8Test",
515	+	"DoubleAccumulatorTest",
516	+	"DoubleAdderTest",
517	+	"ForkJoinPool8Test",
518	+	"ForkJoinTask8Test",
519	+	"LongAccumulatorTest",
520	+	"LongAdderTest",
521	+	"SplittableRandomTest",
522	+	"StampedLockTest",
523	+	"SubmissionPublisherTest",
524	+	"ThreadLocalRandom8Test",
525	+	"TimeUnit8Test",
526	+	};
527	+	addNamedTestClasses(suite, java8TestClassNames);
528	+	}
529	+
530	+	// Java9+ test classes
531	+	if (atLeastJava9()) {
532	+	String[] java9TestClassNames = {
533	+	"AtomicBoolean9Test",
534	+	"AtomicInteger9Test",
535	+	"AtomicIntegerArray9Test",
536	+	"AtomicLong9Test",
537	+	"AtomicLongArray9Test",
538	+	"AtomicReference9Test",
539	+	"AtomicReferenceArray9Test",
540	+	"ExecutorCompletionService9Test",
541	+	};
542	+	addNamedTestClasses(suite, java9TestClassNames);
543	+	}
544	+
545	+	return suite;
546	+	}
547	+
548	+	/** Returns list of junit-style test method names in given class. */
549	+	public static ArrayList<String> testMethodNames(Class<?> testClass) {
550	+	Method[] methods = testClass.getDeclaredMethods();
551	+	ArrayList<String> names = new ArrayList<String>(methods.length);
552	+	for (Method method : methods) {
553	+	if (method.getName().startsWith("test")
554	+	&& Modifier.isPublic(method.getModifiers())
555	+	// method.getParameterCount() requires jdk8+
556	+	&& method.getParameterTypes().length == 0) {
557	+	names.add(method.getName());
558	+	}
559	+	}
560	+	return names;
561	+	}
562	+
563	+	/**
564	+	* Returns junit-style testSuite for the given test class, but
565	+	* parameterized by passing extra data to each test.
566	+	*/
567	+	public static <ExtraData> Test parameterizedTestSuite
568	+	(Class<? extends JSR166TestCase> testClass,
569	+	Class<ExtraData> dataClass,
570	+	ExtraData data) {
571	+	try {
572	+	TestSuite suite = new TestSuite();
573	+	Constructor c =
574	+	testClass.getDeclaredConstructor(dataClass, String.class);
575	+	for (String methodName : testMethodNames(testClass))
576	+	suite.addTest((Test) c.newInstance(data, methodName));
577	+	return suite;
578	+	} catch (Exception e) {
579	+	throw new Error(e);
580	+	}
581	+	}
582	+
583	+	/**
584	+	* Returns junit-style testSuite for the jdk8 extension of the
585	+	* given test class, but parameterized by passing extra data to
586	+	* each test.  Uses reflection to allow compilation in jdk7.
587	+	*/
588	+	public static <ExtraData> Test jdk8ParameterizedTestSuite
589	+	(Class<? extends JSR166TestCase> testClass,
590	+	Class<ExtraData> dataClass,
591	+	ExtraData data) {
592	+	if (atLeastJava8()) {
593	+	String name = testClass.getName();
594	+	String name8 = name.replaceAll("Test$", "8Test");
595	+	if (name.equals(name8)) throw new Error(name);
596	+	try {
597	+	return (Test)
598	+	Class.forName(name8)
599	+	.getMethod("testSuite", new Class[] { dataClass })
600	+	.invoke(null, data);
601	+	} catch (Exception e) {
602	+	throw new Error(e);
603	+	}
604	+	} else {
605	+	return new TestSuite();
606	+	}
607	+	}
608	+
609	+	// Delays for timing-dependent tests, in milliseconds.
610
611		public static long SHORT_DELAY_MS;
612		public static long SMALL_DELAY_MS;
613		public static long MEDIUM_DELAY_MS;
614		public static long LONG_DELAY_MS;
615
61	–
616		/**
617	<	* Return the shortest timed delay. This could
618	<	* be reimplmented to use for example a Property.
619	<	*/
617	>	* Returns the shortest timed delay. This can be scaled up for
618	>	* slow machines using the jsr166.delay.factor system property,
619	>	* or via jtreg's -timeoutFactor: flag.
620	>	* http://openjdk.java.net/jtreg/command-help.html
621	>	*/
622		protected long getShortDelay() {
623	<	return 50;
623	>	return (long) (50 * delayFactor);
624		}
625
70	–
626		/**
627	<	* Set delays as multiples fo SHORT_DELAY.
627	>	* Sets delays as multiples of SHORT_DELAY.
628		*/
629	<	protected  void setDelays() {
629	>	protected void setDelays() {
630		SHORT_DELAY_MS = getShortDelay();
631	<	SMALL_DELAY_MS = SHORT_DELAY_MS * 5;
631	>	SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
632		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
633	<	LONG_DELAY_MS = SHORT_DELAY_MS * 50;
633	>	LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
634		}
635
636		/**
637	<	* Flag set true if any threadAssert methods fail
637	>	* Returns a timeout in milliseconds to be used in tests that
638	>	* verify that operations block or time out.
639		*/
640	<	protected volatile boolean threadFailed;
640	>	long timeoutMillis() {
641	>	return SHORT_DELAY_MS / 4;
642	>	}
643
644		/**
645	<	* Initialize test to indicat that no thread assertions have failed
645	>	* Returns a new Date instance representing a time at least
646	>	* delayMillis milliseconds in the future.
647		*/
648	<	public void setUp() {
648	>	Date delayedDate(long delayMillis) {
649	>	// Add 1 because currentTimeMillis is known to round into the past.
650	>	return new Date(System.currentTimeMillis() + delayMillis + 1);
651	>	}
652	>
653	>	/**
654	>	* The first exception encountered if any threadAssertXXX method fails.
655	>	*/
656	>	private final AtomicReference<Throwable> threadFailure
657	>	= new AtomicReference<Throwable>(null);
658	>
659	>	/**
660	>	* Records an exception so that it can be rethrown later in the test
661	>	* harness thread, triggering a test case failure.  Only the first
662	>	* failure is recorded; subsequent calls to this method from within
663	>	* the same test have no effect.
664	>	*/
665	>	public void threadRecordFailure(Throwable t) {
666	>	System.err.println(t);
667	>	dumpTestThreads();
668	>	threadFailure.compareAndSet(null, t);
669	>	}
670	>
671	>	public void setUp() {
672		setDelays();
673	<	threadFailed = false;
673	>	}
674	>
675	>	void tearDownFail(String format, Object... args) {
676	>	String msg = toString() + ": " + String.format(format, args);
677	>	System.err.println(msg);
678	>	dumpTestThreads();
679	>	throw new AssertionFailedError(msg);
680		}
681
682		/**
683	<	* Trigger test case failure if any thread assertions have failed
683	>	* Extra checks that get done for all test cases.
684	>	*
685	>	* Triggers test case failure if any thread assertions have failed,
686	>	* by rethrowing, in the test harness thread, any exception recorded
687	>	* earlier by threadRecordFailure.
688	>	*
689	>	* Triggers test case failure if interrupt status is set in the main thread.
690		*/
691	<	public void tearDown() {
692	<	assertFalse(threadFailed);
691	>	public void tearDown() throws Exception {
692	>	Throwable t = threadFailure.getAndSet(null);
693	>	if (t != null) {
694	>	if (t instanceof Error)
695	>	throw (Error) t;
696	>	else if (t instanceof RuntimeException)
697	>	throw (RuntimeException) t;
698	>	else if (t instanceof Exception)
699	>	throw (Exception) t;
700	>	else {
701	>	AssertionFailedError afe =
702	>	new AssertionFailedError(t.toString());
703	>	afe.initCause(t);
704	>	throw afe;
705	>	}
706	>	}
707	>
708	>	if (Thread.interrupted())
709	>	tearDownFail("interrupt status set in main thread");
710	>
711	>	checkForkJoinPoolThreadLeaks();
712		}
713
714	+	/**
715	+	* Finds missing PoolCleaners
716	+	*/
717	+	void checkForkJoinPoolThreadLeaks() throws InterruptedException {
718	+	Thread[] survivors = new Thread[7];
719	+	int count = Thread.enumerate(survivors);
720	+	for (int i = 0; i < count; i++) {
721	+	Thread thread = survivors[i];
722	+	String name = thread.getName();
723	+	if (name.startsWith("ForkJoinPool-")) {
724	+	// give thread some time to terminate
725	+	thread.join(LONG_DELAY_MS);
726	+	if (thread.isAlive())
727	+	tearDownFail("Found leaked ForkJoinPool thread thread=%s",
728	+	thread);
729	+	}
730	+	}
731	+
732	+	if (!ForkJoinPool.commonPool()
733	+	.awaitQuiescence(LONG_DELAY_MS, MILLISECONDS))
734	+	tearDownFail("ForkJoin common pool thread stuck");
735	+	}
736	+
737	+	/**
738	+	* Just like fail(reason), but additionally recording (using
739	+	* threadRecordFailure) any AssertionFailedError thrown, so that
740	+	* the current testcase will fail.
741	+	*/
742		public void threadFail(String reason) {
743	<	threadFailed = true;
744	<	fail(reason);
743	>	try {
744	>	fail(reason);
745	>	} catch (AssertionFailedError t) {
746	>	threadRecordFailure(t);
747	>	throw t;
748	>	}
749		}
750
751	+	/**
752	+	* Just like assertTrue(b), but additionally recording (using
753	+	* threadRecordFailure) any AssertionFailedError thrown, so that
754	+	* the current testcase will fail.
755	+	*/
756		public void threadAssertTrue(boolean b) {
757	<	if (!b) {
108	<	threadFailed = true;
757	>	try {
758		assertTrue(b);
759	+	} catch (AssertionFailedError t) {
760	+	threadRecordFailure(t);
761	+	throw t;
762		}
763		}
764	+
765	+	/**
766	+	* Just like assertFalse(b), but additionally recording (using
767	+	* threadRecordFailure) any AssertionFailedError thrown, so that
768	+	* the current testcase will fail.
769	+	*/
770		public void threadAssertFalse(boolean b) {
771	<	if (b) {
114	<	threadFailed = true;
771	>	try {
772		assertFalse(b);
773	+	} catch (AssertionFailedError t) {
774	+	threadRecordFailure(t);
775	+	throw t;
776		}
777		}
778	+
779	+	/**
780	+	* Just like assertNull(x), but additionally recording (using
781	+	* threadRecordFailure) any AssertionFailedError thrown, so that
782	+	* the current testcase will fail.
783	+	*/
784		public void threadAssertNull(Object x) {
785	<	if (x != null) {
120	<	threadFailed = true;
785	>	try {
786		assertNull(x);
787	+	} catch (AssertionFailedError t) {
788	+	threadRecordFailure(t);
789	+	throw t;
790		}
791		}
792	+
793	+	/**
794	+	* Just like assertEquals(x, y), but additionally recording (using
795	+	* threadRecordFailure) any AssertionFailedError thrown, so that
796	+	* the current testcase will fail.
797	+	*/
798		public void threadAssertEquals(long x, long y) {
799	<	if (x != y) {
126	<	threadFailed = true;
799	>	try {
800		assertEquals(x, y);
801	+	} catch (AssertionFailedError t) {
802	+	threadRecordFailure(t);
803	+	throw t;
804		}
805		}
806	+
807	+	/**
808	+	* Just like assertEquals(x, y), but additionally recording (using
809	+	* threadRecordFailure) any AssertionFailedError thrown, so that
810	+	* the current testcase will fail.
811	+	*/
812		public void threadAssertEquals(Object x, Object y) {
813	<	if (x != y && (x == null || !x.equals(y))) {
132	<	threadFailed = true;
813	>	try {
814		assertEquals(x, y);
815	+	} catch (AssertionFailedError fail) {
816	+	threadRecordFailure(fail);
817	+	throw fail;
818	+	} catch (Throwable fail) {
819	+	threadUnexpectedException(fail);
820		}
821		}
822
823		/**
824	<	* Wait out termination of a thread pool or fail doing so
824	>	* Just like assertSame(x, y), but additionally recording (using
825	>	* threadRecordFailure) any AssertionFailedError thrown, so that
826	>	* the current testcase will fail.
827		*/
828	<	public void joinPool(ExecutorService exec) {
828	>	public void threadAssertSame(Object x, Object y) {
829		try {
830	<	exec.shutdown();
831	<	assertTrue(exec.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
832	<	} catch(InterruptedException ie) {
833	<	fail("unexpected exception");
830	>	assertSame(x, y);
831	>	} catch (AssertionFailedError fail) {
832	>	threadRecordFailure(fail);
833	>	throw fail;
834		}
835		}
836
837	+	/**
838	+	* Calls threadFail with message "should throw exception".
839	+	*/
840	+	public void threadShouldThrow() {
841	+	threadFail("should throw exception");
842	+	}
843	+
844	+	/**
845	+	* Calls threadFail with message "should throw" + exceptionName.
846	+	*/
847	+	public void threadShouldThrow(String exceptionName) {
848	+	threadFail("should throw " + exceptionName);
849	+	}
850	+
851	+	/**
852	+	* Records the given exception using {@link #threadRecordFailure},
853	+	* then rethrows the exception, wrapping it in an
854	+	* AssertionFailedError if necessary.
855	+	*/
856	+	public void threadUnexpectedException(Throwable t) {
857	+	threadRecordFailure(t);
858	+	t.printStackTrace();
859	+	if (t instanceof RuntimeException)
860	+	throw (RuntimeException) t;
861	+	else if (t instanceof Error)
862	+	throw (Error) t;
863	+	else {
864	+	AssertionFailedError afe =
865	+	new AssertionFailedError("unexpected exception: " + t);
866	+	afe.initCause(t);
867	+	throw afe;
868	+	}
869	+	}
870	+
871	+	/**
872	+	* Delays, via Thread.sleep, for the given millisecond delay, but
873	+	* if the sleep is shorter than specified, may re-sleep or yield
874	+	* until time elapses.  Ensures that the given time, as measured
875	+	* by System.nanoTime(), has elapsed.
876	+	*/
877	+	static void delay(long millis) throws InterruptedException {
878	+	long nanos = millis * (1000 * 1000);
879	+	final long wakeupTime = System.nanoTime() + nanos;
880	+	do {
881	+	if (millis > 0L)
882	+	Thread.sleep(millis);
883	+	else // too short to sleep
884	+	Thread.yield();
885	+	nanos = wakeupTime - System.nanoTime();
886	+	millis = nanos / (1000 * 1000);
887	+	} while (nanos >= 0L);
888	+	}
889	+
890	+	/**
891	+	* Allows use of try-with-resources with per-test thread pools.
892	+	*/
893	+	class PoolCleaner implements AutoCloseable {
894	+	private final ExecutorService pool;
895	+	public PoolCleaner(ExecutorService pool) { this.pool = pool; }
896	+	public void close() { joinPool(pool); }
897	+	}
898	+
899	+	/**
900	+	* An extension of PoolCleaner that has an action to release the pool.
901	+	*/
902	+	class PoolCleanerWithReleaser extends PoolCleaner {
903	+	private final Runnable releaser;
904	+	public PoolCleanerWithReleaser(ExecutorService pool, Runnable releaser) {
905	+	super(pool);
906	+	this.releaser = releaser;
907	+	}
908	+	public void close() {
909	+	try {
910	+	releaser.run();
911	+	} finally {
912	+	super.close();
913	+	}
914	+	}
915	+	}
916	+
917	+	PoolCleaner cleaner(ExecutorService pool) {
918	+	return new PoolCleaner(pool);
919	+	}
920	+
921	+	PoolCleaner cleaner(ExecutorService pool, Runnable releaser) {
922	+	return new PoolCleanerWithReleaser(pool, releaser);
923	+	}
924	+
925	+	PoolCleaner cleaner(ExecutorService pool, CountDownLatch latch) {
926	+	return new PoolCleanerWithReleaser(pool, releaser(latch));
927	+	}
928	+
929	+	Runnable releaser(final CountDownLatch latch) {
930	+	return new Runnable() { public void run() {
931	+	do { latch.countDown(); }
932	+	while (latch.getCount() > 0);
933	+	}};
934	+	}
935	+
936	+	PoolCleaner cleaner(ExecutorService pool, AtomicBoolean flag) {
937	+	return new PoolCleanerWithReleaser(pool, releaser(flag));
938	+	}
939	+
940	+	Runnable releaser(final AtomicBoolean flag) {
941	+	return new Runnable() { public void run() { flag.set(true); }};
942	+	}
943	+
944	+	/**
945	+	* Waits out termination of a thread pool or fails doing so.
946	+	*/
947	+	void joinPool(ExecutorService pool) {
948	+	try {
949	+	pool.shutdown();
950	+	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)) {
951	+	try {
952	+	threadFail("ExecutorService " + pool +
953	+	" did not terminate in a timely manner");
954	+	} finally {
955	+	// last resort, for the benefit of subsequent tests
956	+	pool.shutdownNow();
957	+	pool.awaitTermination(MEDIUM_DELAY_MS, MILLISECONDS);
958	+	}
959	+	}
960	+	} catch (SecurityException ok) {
961	+	// Allowed in case test doesn't have privs
962	+	} catch (InterruptedException fail) {
963	+	threadFail("Unexpected InterruptedException");
964	+	}
965	+	}
966	+
967	+	/**
968	+	* Like Runnable, but with the freedom to throw anything.
969	+	* junit folks had the same idea:
970	+	* http://junit.org/junit5/docs/snapshot/api/org/junit/gen5/api/Executable.html
971	+	*/
972	+	interface Action { public void run() throws Throwable; }
973	+
974	+	/**
975	+	* Runs all the given actions in parallel, failing if any fail.
976	+	* Useful for running multiple variants of tests that are
977	+	* necessarily individually slow because they must block.
978	+	*/
979	+	void testInParallel(Action ... actions) {
980	+	ExecutorService pool = Executors.newCachedThreadPool();
981	+	try (PoolCleaner cleaner = cleaner(pool)) {
982	+	ArrayList<Future<?>> futures = new ArrayList<>(actions.length);
983	+	for (final Action action : actions)
984	+	futures.add(pool.submit(new CheckedRunnable() {
985	+	public void realRun() throws Throwable { action.run();}}));
986	+	for (Future<?> future : futures)
987	+	try {
988	+	assertNull(future.get(LONG_DELAY_MS, MILLISECONDS));
989	+	} catch (ExecutionException ex) {
990	+	threadUnexpectedException(ex.getCause());
991	+	} catch (Exception ex) {
992	+	threadUnexpectedException(ex);
993	+	}
994	+	}
995	+	}
996	+
997	+	/**
998	+	* A debugging tool to print stack traces of most threads, as jstack does.
999	+	* Uninteresting threads are filtered out.
1000	+	*/
1001	+	static void dumpTestThreads() {
1002	+	SecurityManager sm = System.getSecurityManager();
1003	+	if (sm != null) {
1004	+	try {
1005	+	System.setSecurityManager(null);
1006	+	} catch (SecurityException giveUp) {
1007	+	return;
1008	+	}
1009	+	}
1010	+
1011	+	ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
1012	+	System.err.println("------ stacktrace dump start ------");
1013	+	for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) {
1014	+	final String name = info.getThreadName();
1015	+	String lockName;
1016	+	if ("Signal Dispatcher".equals(name))
1017	+	continue;
1018	+	if ("Reference Handler".equals(name)
1019	+	&& (lockName = info.getLockName()) != null
1020	+	&& lockName.startsWith("java.lang.ref.Reference$Lock"))
1021	+	continue;
1022	+	if ("Finalizer".equals(name)
1023	+	&& (lockName = info.getLockName()) != null
1024	+	&& lockName.startsWith("java.lang.ref.ReferenceQueue$Lock"))
1025	+	continue;
1026	+	if ("checkForWedgedTest".equals(name))
1027	+	continue;
1028	+	System.err.print(info);
1029	+	}
1030	+	System.err.println("------ stacktrace dump end ------");
1031	+
1032	+	if (sm != null) System.setSecurityManager(sm);
1033	+	}
1034	+
1035	+	/**
1036	+	* Checks that thread does not terminate within the default
1037	+	* millisecond delay of {@code timeoutMillis()}.
1038	+	*/
1039	+	void assertThreadStaysAlive(Thread thread) {
1040	+	assertThreadStaysAlive(thread, timeoutMillis());
1041	+	}
1042	+
1043	+	/**
1044	+	* Checks that thread does not terminate within the given millisecond delay.
1045	+	*/
1046	+	void assertThreadStaysAlive(Thread thread, long millis) {
1047	+	try {
1048	+	// No need to optimize the failing case via Thread.join.
1049	+	delay(millis);
1050	+	assertTrue(thread.isAlive());
1051	+	} catch (InterruptedException fail) {
1052	+	threadFail("Unexpected InterruptedException");
1053	+	}
1054	+	}
1055	+
1056	+	/**
1057	+	* Checks that the threads do not terminate within the default
1058	+	* millisecond delay of {@code timeoutMillis()}.
1059	+	*/
1060	+	void assertThreadsStayAlive(Thread... threads) {
1061	+	assertThreadsStayAlive(timeoutMillis(), threads);
1062	+	}
1063	+
1064	+	/**
1065	+	* Checks that the threads do not terminate within the given millisecond delay.
1066	+	*/
1067	+	void assertThreadsStayAlive(long millis, Thread... threads) {
1068	+	try {
1069	+	// No need to optimize the failing case via Thread.join.
1070	+	delay(millis);
1071	+	for (Thread thread : threads)
1072	+	assertTrue(thread.isAlive());
1073	+	} catch (InterruptedException fail) {
1074	+	threadFail("Unexpected InterruptedException");
1075	+	}
1076	+	}
1077	+
1078	+	/**
1079	+	* Checks that future.get times out, with the default timeout of
1080	+	* {@code timeoutMillis()}.
1081	+	*/
1082	+	void assertFutureTimesOut(Future future) {
1083	+	assertFutureTimesOut(future, timeoutMillis());
1084	+	}
1085	+
1086	+	/**
1087	+	* Checks that future.get times out, with the given millisecond timeout.
1088	+	*/
1089	+	void assertFutureTimesOut(Future future, long timeoutMillis) {
1090	+	long startTime = System.nanoTime();
1091	+	try {
1092	+	future.get(timeoutMillis, MILLISECONDS);
1093	+	shouldThrow();
1094	+	} catch (TimeoutException success) {
1095	+	} catch (Exception fail) {
1096	+	threadUnexpectedException(fail);
1097	+	} finally { future.cancel(true); }
1098	+	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
1099	+	}
1100	+
1101	+	/**
1102	+	* Fails with message "should throw exception".
1103	+	*/
1104	+	public void shouldThrow() {
1105	+	fail("Should throw exception");
1106	+	}
1107
1108	+	/**
1109	+	* Fails with message "should throw " + exceptionName.
1110	+	*/
1111	+	public void shouldThrow(String exceptionName) {
1112	+	fail("Should throw " + exceptionName);
1113	+	}
1114
1115		/**
1116		* The number of elements to place in collections, arrays, etc.
#	Line 155 | Line 1119 | public class JSR166TestCase extends Test
1119
1120		// Some convenient Integer constants
1121
1122	<	public static final Integer zero = new Integer(0);
1123	<	public static final Integer one = new Integer(1);
1124	<	public static final Integer two = new Integer(2);
1125	<	public static final Integer three  = new Integer(3);
1122	>	public static final Integer zero  = new Integer(0);
1123	>	public static final Integer one   = new Integer(1);
1124	>	public static final Integer two   = new Integer(2);
1125	>	public static final Integer three = new Integer(3);
1126		public static final Integer four  = new Integer(4);
1127		public static final Integer five  = new Integer(5);
1128	<	public static final Integer six = new Integer(6);
1128	>	public static final Integer six   = new Integer(6);
1129		public static final Integer seven = new Integer(7);
1130		public static final Integer eight = new Integer(8);
1131	<	public static final Integer nine = new Integer(9);
1131	>	public static final Integer nine  = new Integer(9);
1132		public static final Integer m1  = new Integer(-1);
1133		public static final Integer m2  = new Integer(-2);
1134		public static final Integer m3  = new Integer(-3);
1135	<	public static final Integer m4 = new Integer(-4);
1136	<	public static final Integer m5 = new Integer(-5);
1135	>	public static final Integer m4  = new Integer(-4);
1136	>	public static final Integer m5  = new Integer(-5);
1137	>	public static final Integer m6  = new Integer(-6);
1138		public static final Integer m10 = new Integer(-10);
1139
1140	+	/**
1141	+	* Runs Runnable r with a security policy that permits precisely
1142	+	* the specified permissions.  If there is no current security
1143	+	* manager, the runnable is run twice, both with and without a
1144	+	* security manager.  We require that any security manager permit
1145	+	* getPolicy/setPolicy.
1146	+	*/
1147	+	public void runWithPermissions(Runnable r, Permission... permissions) {
1148	+	SecurityManager sm = System.getSecurityManager();
1149	+	if (sm == null) {
1150	+	r.run();
1151	+	}
1152	+	runWithSecurityManagerWithPermissions(r, permissions);
1153	+	}
1154
1155	<	// Some convenient Runnable classes
1155	>	/**
1156	>	* Runs Runnable r with a security policy that permits precisely
1157	>	* the specified permissions.  If there is no current security
1158	>	* manager, a temporary one is set for the duration of the
1159	>	* Runnable.  We require that any security manager permit
1160	>	* getPolicy/setPolicy.
1161	>	*/
1162	>	public void runWithSecurityManagerWithPermissions(Runnable r,
1163	>	Permission... permissions) {
1164	>	SecurityManager sm = System.getSecurityManager();
1165	>	if (sm == null) {
1166	>	Policy savedPolicy = Policy.getPolicy();
1167	>	try {
1168	>	Policy.setPolicy(permissivePolicy());
1169	>	System.setSecurityManager(new SecurityManager());
1170	>	runWithSecurityManagerWithPermissions(r, permissions);
1171	>	} finally {
1172	>	System.setSecurityManager(null);
1173	>	Policy.setPolicy(savedPolicy);
1174	>	}
1175	>	} else {
1176	>	Policy savedPolicy = Policy.getPolicy();
1177	>	AdjustablePolicy policy = new AdjustablePolicy(permissions);
1178	>	Policy.setPolicy(policy);
1179
1180	<	public static class NoOpRunnable implements Runnable {
1181	<	public void run() {}
1180	>	try {
1181	>	r.run();
1182	>	} finally {
1183	>	policy.addPermission(new SecurityPermission("setPolicy"));
1184	>	Policy.setPolicy(savedPolicy);
1185	>	}
1186	>	}
1187		}
1188
1189	<	public static class NoOpCallable implements Callable {
1190	<	public Object call() { return Boolean.TRUE; }
1189	>	/**
1190	>	* Runs a runnable without any permissions.
1191	>	*/
1192	>	public void runWithoutPermissions(Runnable r) {
1193	>	runWithPermissions(r);
1194		}
1195
1196	<	public class ShortRunnable implements Runnable {
1197	<	public void run() {
1198	<	try {
1199	<	Thread.sleep(SHORT_DELAY_MS);
1196	>	/**
1197	>	* A security policy where new permissions can be dynamically added
1198	>	* or all cleared.
1199	>	*/
1200	>	public static class AdjustablePolicy extends java.security.Policy {
1201	>	Permissions perms = new Permissions();
1202	>	AdjustablePolicy(Permission... permissions) {
1203	>	for (Permission permission : permissions)
1204	>	perms.add(permission);
1205	>	}
1206	>	void addPermission(Permission perm) { perms.add(perm); }
1207	>	void clearPermissions() { perms = new Permissions(); }
1208	>	public PermissionCollection getPermissions(CodeSource cs) {
1209	>	return perms;
1210	>	}
1211	>	public PermissionCollection getPermissions(ProtectionDomain pd) {
1212	>	return perms;
1213	>	}
1214	>	public boolean implies(ProtectionDomain pd, Permission p) {
1215	>	return perms.implies(p);
1216	>	}
1217	>	public void refresh() {}
1218	>	public String toString() {
1219	>	List<Permission> ps = new ArrayList<Permission>();
1220	>	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
1221	>	ps.add(e.nextElement());
1222	>	return "AdjustablePolicy with permissions " + ps;
1223	>	}
1224	>	}
1225	>
1226	>	/**
1227	>	* Returns a policy containing all the permissions we ever need.
1228	>	*/
1229	>	public static Policy permissivePolicy() {
1230	>	return new AdjustablePolicy
1231	>	// Permissions j.u.c. needs directly
1232	>	(new RuntimePermission("modifyThread"),
1233	>	new RuntimePermission("getClassLoader"),
1234	>	new RuntimePermission("setContextClassLoader"),
1235	>	// Permissions needed to change permissions!
1236	>	new SecurityPermission("getPolicy"),
1237	>	new SecurityPermission("setPolicy"),
1238	>	new RuntimePermission("setSecurityManager"),
1239	>	// Permissions needed by the junit test harness
1240	>	new RuntimePermission("accessDeclaredMembers"),
1241	>	new PropertyPermission("*", "read"),
1242	>	new java.io.FilePermission("<<ALL FILES>>", "read"));
1243	>	}
1244	>
1245	>	/**
1246	>	* Sleeps until the given time has elapsed.
1247	>	* Throws AssertionFailedError if interrupted.
1248	>	*/
1249	>	static void sleep(long millis) {
1250	>	try {
1251	>	delay(millis);
1252	>	} catch (InterruptedException fail) {
1253	>	AssertionFailedError afe =
1254	>	new AssertionFailedError("Unexpected InterruptedException");
1255	>	afe.initCause(fail);
1256	>	throw afe;
1257	>	}
1258	>	}
1259	>
1260	>	/**
1261	>	* Spin-waits up to the specified number of milliseconds for the given
1262	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1263	>	*/
1264	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1265	>	long startTime = 0L;
1266	>	for (;;) {
1267	>	Thread.State s = thread.getState();
1268	>	if (s == Thread.State.BLOCKED ||
1269	>	s == Thread.State.WAITING ||
1270	>	s == Thread.State.TIMED_WAITING)
1271	>	return;
1272	>	else if (s == Thread.State.TERMINATED)
1273	>	fail("Unexpected thread termination");
1274	>	else if (startTime == 0L)
1275	>	startTime = System.nanoTime();
1276	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
1277	>	threadAssertTrue(thread.isAlive());
1278	>	return;
1279		}
1280	<	catch(Exception e) {
1281	<	threadFail("unexpectedException");
1280	>	Thread.yield();
1281	>	}
1282	>	}
1283	>
1284	>	/**
1285	>	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
1286	>	* state: BLOCKED, WAITING, or TIMED_WAITING.
1287	>	*/
1288	>	void waitForThreadToEnterWaitState(Thread thread) {
1289	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
1290	>	}
1291	>
1292	>	/**
1293	>	* Returns the number of milliseconds since time given by
1294	>	* startNanoTime, which must have been previously returned from a
1295	>	* call to {@link System#nanoTime()}.
1296	>	*/
1297	>	static long millisElapsedSince(long startNanoTime) {
1298	>	return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
1299	>	}
1300	>
1301	>	//     void assertTerminatesPromptly(long timeoutMillis, Runnable r) {
1302	>	//         long startTime = System.nanoTime();
1303	>	//         try {
1304	>	//             r.run();
1305	>	//         } catch (Throwable fail) { threadUnexpectedException(fail); }
1306	>	//         if (millisElapsedSince(startTime) > timeoutMillis/2)
1307	>	//             throw new AssertionFailedError("did not return promptly");
1308	>	//     }
1309	>
1310	>	//     void assertTerminatesPromptly(Runnable r) {
1311	>	//         assertTerminatesPromptly(LONG_DELAY_MS/2, r);
1312	>	//     }
1313	>
1314	>	/**
1315	>	* Checks that timed f.get() returns the expected value, and does not
1316	>	* wait for the timeout to elapse before returning.
1317	>	*/
1318	>	<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
1319	>	long startTime = System.nanoTime();
1320	>	try {
1321	>	assertEquals(expectedValue, f.get(timeoutMillis, MILLISECONDS));
1322	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
1323	>	if (millisElapsedSince(startTime) > timeoutMillis/2)
1324	>	throw new AssertionFailedError("timed get did not return promptly");
1325	>	}
1326	>
1327	>	<T> void checkTimedGet(Future<T> f, T expectedValue) {
1328	>	checkTimedGet(f, expectedValue, LONG_DELAY_MS);
1329	>	}
1330	>
1331	>	/**
1332	>	* Returns a new started daemon Thread running the given runnable.
1333	>	*/
1334	>	Thread newStartedThread(Runnable runnable) {
1335	>	Thread t = new Thread(runnable);
1336	>	t.setDaemon(true);
1337	>	t.start();
1338	>	return t;
1339	>	}
1340	>
1341	>	/**
1342	>	* Waits for the specified time (in milliseconds) for the thread
1343	>	* to terminate (using {@link Thread#join(long)}), else interrupts
1344	>	* the thread (in the hope that it may terminate later) and fails.
1345	>	*/
1346	>	void awaitTermination(Thread t, long timeoutMillis) {
1347	>	try {
1348	>	t.join(timeoutMillis);
1349	>	} catch (InterruptedException fail) {
1350	>	threadUnexpectedException(fail);
1351	>	} finally {
1352	>	if (t.getState() != Thread.State.TERMINATED) {
1353	>	t.interrupt();
1354	>	threadFail("timed out waiting for thread to terminate");
1355		}
1356		}
1357		}
1358
1359	<	public class ShortInterruptedRunnable implements Runnable {
1360	<	public void run() {
1359	>	/**
1360	>	* Waits for LONG_DELAY_MS milliseconds for the thread to
1361	>	* terminate (using {@link Thread#join(long)}), else interrupts
1362	>	* the thread (in the hope that it may terminate later) and fails.
1363	>	*/
1364	>	void awaitTermination(Thread t) {
1365	>	awaitTermination(t, LONG_DELAY_MS);
1366	>	}
1367	>
1368	>	// Some convenient Runnable classes
1369	>
1370	>	public abstract class CheckedRunnable implements Runnable {
1371	>	protected abstract void realRun() throws Throwable;
1372	>
1373	>	public final void run() {
1374		try {
1375	<	Thread.sleep(SHORT_DELAY_MS);
1376	<	threadFail("should throw IE");
1375	>	realRun();
1376	>	} catch (Throwable fail) {
1377	>	threadUnexpectedException(fail);
1378		}
1379	<	catch(InterruptedException success) {
1379	>	}
1380	>	}
1381	>
1382	>	public abstract class RunnableShouldThrow implements Runnable {
1383	>	protected abstract void realRun() throws Throwable;
1384	>
1385	>	final Class<?> exceptionClass;
1386	>
1387	>	<T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) {
1388	>	this.exceptionClass = exceptionClass;
1389	>	}
1390	>
1391	>	public final void run() {
1392	>	try {
1393	>	realRun();
1394	>	threadShouldThrow(exceptionClass.getSimpleName());
1395	>	} catch (Throwable t) {
1396	>	if (! exceptionClass.isInstance(t))
1397	>	threadUnexpectedException(t);
1398		}
1399		}
1400		}
1401
1402	<	public class SmallRunnable implements Runnable {
1403	<	public void run() {
1402	>	public abstract class ThreadShouldThrow extends Thread {
1403	>	protected abstract void realRun() throws Throwable;
1404	>
1405	>	final Class<?> exceptionClass;
1406	>
1407	>	<T extends Throwable> ThreadShouldThrow(Class<T> exceptionClass) {
1408	>	this.exceptionClass = exceptionClass;
1409	>	}
1410	>
1411	>	public final void run() {
1412		try {
1413	<	Thread.sleep(SMALL_DELAY_MS);
1413	>	realRun();
1414	>	threadShouldThrow(exceptionClass.getSimpleName());
1415	>	} catch (Throwable t) {
1416	>	if (! exceptionClass.isInstance(t))
1417	>	threadUnexpectedException(t);
1418		}
1419	<	catch(Exception e) {
1420	<	threadFail("unexpectedException");
1419	>	}
1420	>	}
1421	>
1422	>	public abstract class CheckedInterruptedRunnable implements Runnable {
1423	>	protected abstract void realRun() throws Throwable;
1424	>
1425	>	public final void run() {
1426	>	try {
1427	>	realRun();
1428	>	threadShouldThrow("InterruptedException");
1429	>	} catch (InterruptedException success) {
1430	>	threadAssertFalse(Thread.interrupted());
1431	>	} catch (Throwable fail) {
1432	>	threadUnexpectedException(fail);
1433		}
1434		}
1435		}
1436
1437	<	public class SmallCallable implements Callable {
1438	<	public Object call() {
1437	>	public abstract class CheckedCallable<T> implements Callable<T> {
1438	>	protected abstract T realCall() throws Throwable;
1439	>
1440	>	public final T call() {
1441		try {
1442	<	Thread.sleep(SMALL_DELAY_MS);
1442	>	return realCall();
1443	>	} catch (Throwable fail) {
1444	>	threadUnexpectedException(fail);
1445	>	return null;
1446		}
1447	<	catch(Exception e) {
1448	<	threadFail("unexpectedException");
1447	>	}
1448	>	}
1449	>
1450	>	public abstract class CheckedInterruptedCallable<T>
1451	>	implements Callable<T> {
1452	>	protected abstract T realCall() throws Throwable;
1453	>
1454	>	public final T call() {
1455	>	try {
1456	>	T result = realCall();
1457	>	threadShouldThrow("InterruptedException");
1458	>	return result;
1459	>	} catch (InterruptedException success) {
1460	>	threadAssertFalse(Thread.interrupted());
1461	>	} catch (Throwable fail) {
1462	>	threadUnexpectedException(fail);
1463		}
1464	+	return null;
1465	+	}
1466	+	}
1467	+
1468	+	public static class NoOpRunnable implements Runnable {
1469	+	public void run() {}
1470	+	}
1471	+
1472	+	public static class NoOpCallable implements Callable {
1473	+	public Object call() { return Boolean.TRUE; }
1474	+	}
1475	+
1476	+	public static final String TEST_STRING = "a test string";
1477	+
1478	+	public static class StringTask implements Callable<String> {
1479	+	final String value;
1480	+	public StringTask() { this(TEST_STRING); }
1481	+	public StringTask(String value) { this.value = value; }
1482	+	public String call() { return value; }
1483	+	}
1484	+
1485	+	public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
1486	+	return new CheckedCallable<String>() {
1487	+	protected String realCall() {
1488	+	try {
1489	+	latch.await();
1490	+	} catch (InterruptedException quittingTime) {}
1491	+	return TEST_STRING;
1492	+	}};
1493	+	}
1494	+
1495	+	public Runnable countDowner(final CountDownLatch latch) {
1496	+	return new CheckedRunnable() {
1497	+	public void realRun() throws InterruptedException {
1498	+	latch.countDown();
1499	+	}};
1500	+	}
1501	+
1502	+	class LatchAwaiter extends CheckedRunnable {
1503	+	static final int NEW = 0;
1504	+	static final int RUNNING = 1;
1505	+	static final int DONE = 2;
1506	+	final CountDownLatch latch;
1507	+	int state = NEW;
1508	+	LatchAwaiter(CountDownLatch latch) { this.latch = latch; }
1509	+	public void realRun() throws InterruptedException {
1510	+	state = 1;
1511	+	await(latch);
1512	+	state = 2;
1513	+	}
1514	+	}
1515	+
1516	+	public LatchAwaiter awaiter(CountDownLatch latch) {
1517	+	return new LatchAwaiter(latch);
1518	+	}
1519	+
1520	+	public void await(CountDownLatch latch, long timeoutMillis) {
1521	+	try {
1522	+	if (!latch.await(timeoutMillis, MILLISECONDS))
1523	+	fail("timed out waiting for CountDownLatch for "
1524	+	+ (timeoutMillis/1000) + " sec");
1525	+	} catch (Throwable fail) {
1526	+	threadUnexpectedException(fail);
1527	+	}
1528	+	}
1529	+
1530	+	public void await(CountDownLatch latch) {
1531	+	await(latch, LONG_DELAY_MS);
1532	+	}
1533	+
1534	+	public void await(Semaphore semaphore) {
1535	+	try {
1536	+	if (!semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS))
1537	+	fail("timed out waiting for Semaphore for "
1538	+	+ (LONG_DELAY_MS/1000) + " sec");
1539	+	} catch (Throwable fail) {
1540	+	threadUnexpectedException(fail);
1541	+	}
1542	+	}
1543	+
1544	+	//     /**
1545	+	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1546	+	//      */
1547	+	//     public void await(AtomicBoolean flag) {
1548	+	//         await(flag, LONG_DELAY_MS);
1549	+	//     }
1550	+
1551	+	//     /**
1552	+	//      * Spin-waits up to the specified timeout until flag becomes true.
1553	+	//      */
1554	+	//     public void await(AtomicBoolean flag, long timeoutMillis) {
1555	+	//         long startTime = System.nanoTime();
1556	+	//         while (!flag.get()) {
1557	+	//             if (millisElapsedSince(startTime) > timeoutMillis)
1558	+	//                 throw new AssertionFailedError("timed out");
1559	+	//             Thread.yield();
1560	+	//         }
1561	+	//     }
1562	+
1563	+	public static class NPETask implements Callable<String> {
1564	+	public String call() { throw new NullPointerException(); }
1565	+	}
1566	+
1567	+	public static class CallableOne implements Callable<Integer> {
1568	+	public Integer call() { return one; }
1569	+	}
1570	+
1571	+	public class ShortRunnable extends CheckedRunnable {
1572	+	protected void realRun() throws Throwable {
1573	+	delay(SHORT_DELAY_MS);
1574	+	}
1575	+	}
1576	+
1577	+	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1578	+	protected void realRun() throws InterruptedException {
1579	+	delay(SHORT_DELAY_MS);
1580	+	}
1581	+	}
1582	+
1583	+	public class SmallRunnable extends CheckedRunnable {
1584	+	protected void realRun() throws Throwable {
1585	+	delay(SMALL_DELAY_MS);
1586	+	}
1587	+	}
1588	+
1589	+	public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1590	+	protected void realRun() {
1591	+	try {
1592	+	delay(SMALL_DELAY_MS);
1593	+	} catch (InterruptedException ok) {}
1594	+	}
1595	+	}
1596	+
1597	+	public class SmallCallable extends CheckedCallable {
1598	+	protected Object realCall() throws InterruptedException {
1599	+	delay(SMALL_DELAY_MS);
1600		return Boolean.TRUE;
1601		}
1602		}
1603
1604	<	public class SmallInterruptedRunnable implements Runnable {
1604	>	public class MediumRunnable extends CheckedRunnable {
1605	>	protected void realRun() throws Throwable {
1606	>	delay(MEDIUM_DELAY_MS);
1607	>	}
1608	>	}
1609	>
1610	>	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1611	>	protected void realRun() throws InterruptedException {
1612	>	delay(MEDIUM_DELAY_MS);
1613	>	}
1614	>	}
1615	>
1616	>	public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1617	>	return new CheckedRunnable() {
1618	>	protected void realRun() {
1619	>	try {
1620	>	delay(timeoutMillis);
1621	>	} catch (InterruptedException ok) {}
1622	>	}};
1623	>	}
1624	>
1625	>	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1626	>	protected void realRun() {
1627	>	try {
1628	>	delay(MEDIUM_DELAY_MS);
1629	>	} catch (InterruptedException ok) {}
1630	>	}
1631	>	}
1632	>
1633	>	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1634	>	protected void realRun() {
1635	>	try {
1636	>	delay(LONG_DELAY_MS);
1637	>	} catch (InterruptedException ok) {}
1638	>	}
1639	>	}
1640	>
1641	>	/**
1642	>	* For use as ThreadFactory in constructors
1643	>	*/
1644	>	public static class SimpleThreadFactory implements ThreadFactory {
1645	>	public Thread newThread(Runnable r) {
1646	>	return new Thread(r);
1647	>	}
1648	>	}
1649	>
1650	>	public interface TrackedRunnable extends Runnable {
1651	>	boolean isDone();
1652	>	}
1653	>
1654	>	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1655	>	return new TrackedRunnable() {
1656	>	private volatile boolean done = false;
1657	>	public boolean isDone() { return done; }
1658	>	public void run() {
1659	>	try {
1660	>	delay(timeoutMillis);
1661	>	done = true;
1662	>	} catch (InterruptedException ok) {}
1663	>	}
1664	>	};
1665	>	}
1666	>
1667	>	public static class TrackedShortRunnable implements Runnable {
1668	>	public volatile boolean done = false;
1669		public void run() {
1670		try {
1671	<	Thread.sleep(SMALL_DELAY_MS);
1672	<	threadFail("should throw IE");
1673	<	}
237	<	catch(InterruptedException success) {
238	<	}
1671	>	delay(SHORT_DELAY_MS);
1672	>	done = true;
1673	>	} catch (InterruptedException ok) {}
1674		}
1675		}
1676
1677	+	public static class TrackedSmallRunnable implements Runnable {
1678	+	public volatile boolean done = false;
1679	+	public void run() {
1680	+	try {
1681	+	delay(SMALL_DELAY_MS);
1682	+	done = true;
1683	+	} catch (InterruptedException ok) {}
1684	+	}
1685	+	}
1686
1687	<	public class MediumRunnable implements Runnable {
1687	>	public static class TrackedMediumRunnable implements Runnable {
1688	>	public volatile boolean done = false;
1689		public void run() {
1690		try {
1691	<	Thread.sleep(MEDIUM_DELAY_MS);
1692	<	}
1693	<	catch(Exception e) {
249	<	threadFail("unexpectedException");
250	<	}
1691	>	delay(MEDIUM_DELAY_MS);
1692	>	done = true;
1693	>	} catch (InterruptedException ok) {}
1694		}
1695		}
1696
1697	<	public class MediumInterruptedRunnable implements Runnable {
1697	>	public static class TrackedLongRunnable implements Runnable {
1698	>	public volatile boolean done = false;
1699		public void run() {
1700		try {
1701	<	Thread.sleep(MEDIUM_DELAY_MS);
1702	<	threadFail("should throw IE");
1701	>	delay(LONG_DELAY_MS);
1702	>	done = true;
1703	>	} catch (InterruptedException ok) {}
1704	>	}
1705	>	}
1706	>
1707	>	public static class TrackedNoOpRunnable implements Runnable {
1708	>	public volatile boolean done = false;
1709	>	public void run() {
1710	>	done = true;
1711	>	}
1712	>	}
1713	>
1714	>	public static class TrackedCallable implements Callable {
1715	>	public volatile boolean done = false;
1716	>	public Object call() {
1717	>	try {
1718	>	delay(SMALL_DELAY_MS);
1719	>	done = true;
1720	>	} catch (InterruptedException ok) {}
1721	>	return Boolean.TRUE;
1722	>	}
1723	>	}
1724	>
1725	>	/**
1726	>	* Analog of CheckedRunnable for RecursiveAction
1727	>	*/
1728	>	public abstract class CheckedRecursiveAction extends RecursiveAction {
1729	>	protected abstract void realCompute() throws Throwable;
1730	>
1731	>	@Override protected final void compute() {
1732	>	try {
1733	>	realCompute();
1734	>	} catch (Throwable fail) {
1735	>	threadUnexpectedException(fail);
1736		}
1737	<	catch(InterruptedException success) {
1737	>	}
1738	>	}
1739	>
1740	>	/**
1741	>	* Analog of CheckedCallable for RecursiveTask
1742	>	*/
1743	>	public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1744	>	protected abstract T realCompute() throws Throwable;
1745	>
1746	>	@Override protected final T compute() {
1747	>	try {
1748	>	return realCompute();
1749	>	} catch (Throwable fail) {
1750	>	threadUnexpectedException(fail);
1751	>	return null;
1752		}
1753		}
1754		}
1755
1756	<	public class MediumPossiblyInterruptedRunnable implements Runnable {
1757	<	public void run() {
1756	>	/**
1757	>	* For use as RejectedExecutionHandler in constructors
1758	>	*/
1759	>	public static class NoOpREHandler implements RejectedExecutionHandler {
1760	>	public void rejectedExecution(Runnable r,
1761	>	ThreadPoolExecutor executor) {}
1762	>	}
1763	>
1764	>	/**
1765	>	* A CyclicBarrier that uses timed await and fails with
1766	>	* AssertionFailedErrors instead of throwing checked exceptions.
1767	>	*/
1768	>	public static class CheckedBarrier extends CyclicBarrier {
1769	>	public CheckedBarrier(int parties) { super(parties); }
1770	>
1771	>	public int await() {
1772		try {
1773	<	Thread.sleep(MEDIUM_DELAY_MS);
1773	>	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1774	>	} catch (TimeoutException timedOut) {
1775	>	throw new AssertionFailedError("timed out");
1776	>	} catch (Exception fail) {
1777	>	AssertionFailedError afe =
1778	>	new AssertionFailedError("Unexpected exception: " + fail);
1779	>	afe.initCause(fail);
1780	>	throw afe;
1781		}
1782	<	catch(InterruptedException success) {
1782	>	}
1783	>	}
1784	>
1785	>	void checkEmpty(BlockingQueue q) {
1786	>	try {
1787	>	assertTrue(q.isEmpty());
1788	>	assertEquals(0, q.size());
1789	>	assertNull(q.peek());
1790	>	assertNull(q.poll());
1791	>	assertNull(q.poll(0, MILLISECONDS));
1792	>	assertEquals(q.toString(), "[]");
1793	>	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1794	>	assertFalse(q.iterator().hasNext());
1795	>	try {
1796	>	q.element();
1797	>	shouldThrow();
1798	>	} catch (NoSuchElementException success) {}
1799	>	try {
1800	>	q.iterator().next();
1801	>	shouldThrow();
1802	>	} catch (NoSuchElementException success) {}
1803	>	try {
1804	>	q.remove();
1805	>	shouldThrow();
1806	>	} catch (NoSuchElementException success) {}
1807	>	} catch (InterruptedException fail) { threadUnexpectedException(fail); }
1808	>	}
1809	>
1810	>	void assertSerialEquals(Object x, Object y) {
1811	>	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1812	>	}
1813	>
1814	>	void assertNotSerialEquals(Object x, Object y) {
1815	>	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1816	>	}
1817	>
1818	>	byte[] serialBytes(Object o) {
1819	>	try {
1820	>	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1821	>	ObjectOutputStream oos = new ObjectOutputStream(bos);
1822	>	oos.writeObject(o);
1823	>	oos.flush();
1824	>	oos.close();
1825	>	return bos.toByteArray();
1826	>	} catch (Throwable fail) {
1827	>	threadUnexpectedException(fail);
1828	>	return new byte[0];
1829	>	}
1830	>	}
1831	>
1832	>	void assertImmutable(final Object o) {
1833	>	if (o instanceof Collection) {
1834	>	assertThrows(
1835	>	UnsupportedOperationException.class,
1836	>	new Runnable() { public void run() {
1837	>	((Collection) o).add(null);}});
1838	>	}
1839	>	}
1840	>
1841	>	@SuppressWarnings("unchecked")
1842	>	<T> T serialClone(T o) {
1843	>	try {
1844	>	ObjectInputStream ois = new ObjectInputStream
1845	>	(new ByteArrayInputStream(serialBytes(o)));
1846	>	T clone = (T) ois.readObject();
1847	>	if (o == clone) assertImmutable(o);
1848	>	assertSame(o.getClass(), clone.getClass());
1849	>	return clone;
1850	>	} catch (Throwable fail) {
1851	>	threadUnexpectedException(fail);
1852	>	return null;
1853	>	}
1854	>	}
1855	>
1856	>	/**
1857	>	* A version of serialClone that leaves error handling (for
1858	>	* e.g. NotSerializableException) up to the caller.
1859	>	*/
1860	>	@SuppressWarnings("unchecked")
1861	>	<T> T serialClonePossiblyFailing(T o)
1862	>	throws ReflectiveOperationException, java.io.IOException {
1863	>	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1864	>	ObjectOutputStream oos = new ObjectOutputStream(bos);
1865	>	oos.writeObject(o);
1866	>	oos.flush();
1867	>	oos.close();
1868	>	ObjectInputStream ois = new ObjectInputStream
1869	>	(new ByteArrayInputStream(bos.toByteArray()));
1870	>	T clone = (T) ois.readObject();
1871	>	if (o == clone) assertImmutable(o);
1872	>	assertSame(o.getClass(), clone.getClass());
1873	>	return clone;
1874	>	}
1875	>
1876	>	/**
1877	>	* If o implements Cloneable and has a public clone method,
1878	>	* returns a clone of o, else null.
1879	>	*/
1880	>	@SuppressWarnings("unchecked")
1881	>	<T> T cloneableClone(T o) {
1882	>	if (!(o instanceof Cloneable)) return null;
1883	>	final T clone;
1884	>	try {
1885	>	clone = (T) o.getClass().getMethod("clone").invoke(o);
1886	>	} catch (NoSuchMethodException ok) {
1887	>	return null;
1888	>	} catch (ReflectiveOperationException unexpected) {
1889	>	throw new Error(unexpected);
1890	>	}
1891	>	assertNotSame(o, clone); // not 100% guaranteed by spec
1892	>	assertSame(o.getClass(), clone.getClass());
1893	>	return clone;
1894	>	}
1895	>
1896	>	public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1897	>	Runnable... throwingActions) {
1898	>	for (Runnable throwingAction : throwingActions) {
1899	>	boolean threw = false;
1900	>	try { throwingAction.run(); }
1901	>	catch (Throwable t) {
1902	>	threw = true;
1903	>	if (!expectedExceptionClass.isInstance(t)) {
1904	>	AssertionFailedError afe =
1905	>	new AssertionFailedError
1906	>	("Expected " + expectedExceptionClass.getName() +
1907	>	", got " + t.getClass().getName());
1908	>	afe.initCause(t);
1909	>	threadUnexpectedException(afe);
1910	>	}
1911		}
1912	+	if (!threw)
1913	+	shouldThrow(expectedExceptionClass.getName());
1914		}
1915		}
1916	<
1916	>
1917	>	public void assertIteratorExhausted(Iterator<?> it) {
1918	>	try {
1919	>	it.next();
1920	>	shouldThrow();
1921	>	} catch (NoSuchElementException success) {}
1922	>	assertFalse(it.hasNext());
1923	>	}
1924	>
1925	>	public <T> Callable<T> callableThrowing(final Exception ex) {
1926	>	return new Callable<T>() { public T call() throws Exception { throw ex; }};
1927	>	}
1928	>
1929	>	public Runnable runnableThrowing(final RuntimeException ex) {
1930	>	return new Runnable() { public void run() { throw ex; }};
1931	>	}
1932	>
1933	>	/** A reusable thread pool to be shared by tests. */
1934	>	static final ExecutorService cachedThreadPool =
1935	>	new ThreadPoolExecutor(0, Integer.MAX_VALUE,
1936	>	1000L, MILLISECONDS,
1937	>	new SynchronousQueue<Runnable>());
1938	>
1939	>	static <T> void shuffle(T[] array) {
1940	>	Collections.shuffle(Arrays.asList(array), ThreadLocalRandom.current());
1941	>	}
1942		}

Diff Legend

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